diff options
Diffstat (limited to 'drivers/staging/media')
25 files changed, 14091 insertions, 0 deletions
diff --git a/drivers/staging/media/Kconfig b/drivers/staging/media/Kconfig index 96498b7fc20e..2a054a99d433 100644 --- a/drivers/staging/media/Kconfig +++ b/drivers/staging/media/Kconfig @@ -27,12 +27,18 @@ source "drivers/staging/media/davinci_vpfe/Kconfig" source "drivers/staging/media/dt3155v4l/Kconfig" +source "drivers/staging/media/tlg2300/Kconfig" + source "drivers/staging/media/mn88472/Kconfig" source "drivers/staging/media/mn88473/Kconfig" source "drivers/staging/media/omap4iss/Kconfig" +source "drivers/staging/media/parport/Kconfig" + +source "drivers/staging/media/vino/Kconfig" + # Keep LIRC at the end, as it has sub-menus source "drivers/staging/media/lirc/Kconfig" diff --git a/drivers/staging/media/Makefile b/drivers/staging/media/Makefile index 30fb352fc4a9..412b28408398 100644 --- a/drivers/staging/media/Makefile +++ b/drivers/staging/media/Makefile @@ -6,4 +6,7 @@ obj-$(CONFIG_VIDEO_DM365_VPFE) += davinci_vpfe/ obj-$(CONFIG_VIDEO_OMAP4) += omap4iss/ obj-$(CONFIG_DVB_MN88472) += mn88472/ obj-$(CONFIG_DVB_MN88473) += mn88473/ +obj-y += parport/ +obj-$(CONFIG_VIDEO_TLG2300) += tlg2300/ +obj-y += vino/ diff --git a/drivers/staging/media/parport/Kconfig b/drivers/staging/media/parport/Kconfig new file mode 100644 index 000000000000..15974efdba1d --- /dev/null +++ b/drivers/staging/media/parport/Kconfig @@ -0,0 +1,69 @@ +menuconfig MEDIA_PARPORT_SUPPORT + bool "ISA and parallel port devices" + depends on (ISA || PARPORT) && MEDIA_CAMERA_SUPPORT + help + Enables drivers for ISA and parallel port bus. If you + need media drivers using those legacy buses, say Y. + +if MEDIA_PARPORT_SUPPORT +config VIDEO_BWQCAM + tristate "Quickcam BW Video For Linux (Deprecated)" + depends on PARPORT && VIDEO_V4L2 + select VIDEOBUF2_VMALLOC + help + Say Y have if you the black and white version of the QuickCam + camera. See the next option for the color version. + + This driver is deprecated and will be removed soon. If you have + hardware for this and you want to work on this driver, then contact + the linux-media mailinglist. + + To compile this driver as a module, choose M here: the + module will be called bw-qcam. + +config VIDEO_CQCAM + tristate "QuickCam Colour Video For Linux (Deprecated)" + depends on PARPORT && VIDEO_V4L2 + help + This is the video4linux driver for the colour version of the + Connectix QuickCam. If you have one of these cameras, say Y here, + otherwise say N. This driver does not work with the original + monochrome QuickCam, QuickCam VC or QuickClip. It is also available + as a module (c-qcam). + Read <file:Documentation/video4linux/CQcam.txt> for more information. + + This driver is deprecated and will be removed soon. If you have + hardware for this and you want to work on this driver, then contact + the linux-media mailinglist. + +config VIDEO_PMS + tristate "Mediavision Pro Movie Studio Video For Linux (Deprecated)" + depends on ISA && VIDEO_V4L2 + help + Say Y if you have the ISA Mediavision Pro Movie Studio + capture card. + + This driver is deprecated and will be removed soon. If you have + hardware for this and you want to work on this driver, then contact + the linux-media mailinglist. + + To compile this driver as a module, choose M here: the + module will be called pms. + +config VIDEO_W9966 + tristate "W9966CF Webcam (FlyCam Supra and others) Video For Linux (Deprecated)" + depends on PARPORT_1284 && PARPORT && VIDEO_V4L2 + help + Video4linux driver for Winbond's w9966 based Webcams. + Currently tested with the LifeView FlyCam Supra. + If you have one of these cameras, say Y here + otherwise say N. + This driver is also available as a module (w9966). + + Check out <file:Documentation/video4linux/w9966.txt> for more + information. + + This driver is deprecated and will be removed soon. If you have + hardware for this and you want to work on this driver, then contact + the linux-media mailinglist. +endif diff --git a/drivers/staging/media/parport/Makefile b/drivers/staging/media/parport/Makefile new file mode 100644 index 000000000000..4eea06d7af5b --- /dev/null +++ b/drivers/staging/media/parport/Makefile @@ -0,0 +1,4 @@ +obj-$(CONFIG_VIDEO_CQCAM) += c-qcam.o +obj-$(CONFIG_VIDEO_BWQCAM) += bw-qcam.o +obj-$(CONFIG_VIDEO_W9966) += w9966.o +obj-$(CONFIG_VIDEO_PMS) += pms.o diff --git a/drivers/staging/media/parport/bw-qcam.c b/drivers/staging/media/parport/bw-qcam.c new file mode 100644 index 000000000000..67b9da1dc43f --- /dev/null +++ b/drivers/staging/media/parport/bw-qcam.c @@ -0,0 +1,1177 @@ +/* + * QuickCam Driver For Video4Linux. + * + * Video4Linux conversion work by Alan Cox. + * Parport compatibility by Phil Blundell. + * Busy loop avoidance by Mark Cooke. + * + * Module parameters: + * + * maxpoll=<1 - 5000> + * + * When polling the QuickCam for a response, busy-wait for a + * maximum of this many loops. The default of 250 gives little + * impact on interactive response. + * + * NOTE: If this parameter is set too high, the processor + * will busy wait until this loop times out, and then + * slowly poll for a further 5 seconds before failing + * the transaction. You have been warned. + * + * yieldlines=<1 - 250> + * + * When acquiring a frame from the camera, the data gathering + * loop will yield back to the scheduler after completing + * this many lines. The default of 4 provides a trade-off + * between increased frame acquisition time and impact on + * interactive response. + */ + +/* qcam-lib.c -- Library for programming with the Connectix QuickCam. + * See the included documentation for usage instructions and details + * of the protocol involved. */ + + +/* Version 0.5, August 4, 1996 */ +/* Version 0.7, August 27, 1996 */ +/* Version 0.9, November 17, 1996 */ + + +/****************************************************************** + +Copyright (C) 1996 by Scott Laird + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL SCOTT LAIRD BE LIABLE FOR ANY CLAIM, DAMAGES OR +OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. + +******************************************************************/ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/fs.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/mm.h> +#include <linux/parport.h> +#include <linux/sched.h> +#include <linux/videodev2.h> +#include <linux/mutex.h> +#include <asm/uaccess.h> +#include <media/v4l2-common.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-device.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-event.h> +#include <media/videobuf2-vmalloc.h> + +/* One from column A... */ +#define QC_NOTSET 0 +#define QC_UNIDIR 1 +#define QC_BIDIR 2 +#define QC_SERIAL 3 + +/* ... and one from column B */ +#define QC_ANY 0x00 +#define QC_FORCE_UNIDIR 0x10 +#define QC_FORCE_BIDIR 0x20 +#define QC_FORCE_SERIAL 0x30 +/* in the port_mode member */ + +#define QC_MODE_MASK 0x07 +#define QC_FORCE_MASK 0x70 + +#define MAX_HEIGHT 243 +#define MAX_WIDTH 336 + +/* Bit fields for status flags */ +#define QC_PARAM_CHANGE 0x01 /* Camera status change has occurred */ + +struct qcam { + struct v4l2_device v4l2_dev; + struct video_device vdev; + struct v4l2_ctrl_handler hdl; + struct vb2_queue vb_vidq; + struct pardevice *pdev; + struct parport *pport; + struct mutex lock; + struct mutex queue_lock; + int width, height; + int bpp; + int mode; + int contrast, brightness, whitebal; + int port_mode; + int transfer_scale; + int top, left; + int status; + unsigned int saved_bits; + unsigned long in_use; +}; + +static unsigned int maxpoll = 250; /* Maximum busy-loop count for qcam I/O */ +static unsigned int yieldlines = 4; /* Yield after this many during capture */ +static int video_nr = -1; +static unsigned int force_init; /* Whether to probe aggressively */ + +module_param(maxpoll, int, 0); +module_param(yieldlines, int, 0); +module_param(video_nr, int, 0); + +/* Set force_init=1 to avoid detection by polling status register and + * immediately attempt to initialize qcam */ +module_param(force_init, int, 0); + +#define MAX_CAMS 4 +static struct qcam *qcams[MAX_CAMS]; +static unsigned int num_cams; + +static inline int read_lpstatus(struct qcam *q) +{ + return parport_read_status(q->pport); +} + +static inline int read_lpdata(struct qcam *q) +{ + return parport_read_data(q->pport); +} + +static inline void write_lpdata(struct qcam *q, int d) +{ + parport_write_data(q->pport, d); +} + +static void write_lpcontrol(struct qcam *q, int d) +{ + if (d & 0x20) { + /* Set bidirectional mode to reverse (data in) */ + parport_data_reverse(q->pport); + } else { + /* Set bidirectional mode to forward (data out) */ + parport_data_forward(q->pport); + } + + /* Now issue the regular port command, but strip out the + * direction flag */ + d &= ~0x20; + parport_write_control(q->pport, d); +} + + +/* qc_waithand busy-waits for a handshake signal from the QuickCam. + * Almost all communication with the camera requires handshaking. */ + +static int qc_waithand(struct qcam *q, int val) +{ + int status; + int runs = 0; + + if (val) { + while (!((status = read_lpstatus(q)) & 8)) { + /* 1000 is enough spins on the I/O for all normal + cases, at that point we start to poll slowly + until the camera wakes up. However, we are + busy blocked until the camera responds, so + setting it lower is much better for interactive + response. */ + + if (runs++ > maxpoll) + msleep_interruptible(5); + if (runs > (maxpoll + 1000)) /* 5 seconds */ + return -1; + } + } else { + while (((status = read_lpstatus(q)) & 8)) { + /* 1000 is enough spins on the I/O for all normal + cases, at that point we start to poll slowly + until the camera wakes up. However, we are + busy blocked until the camera responds, so + setting it lower is much better for interactive + response. */ + + if (runs++ > maxpoll) + msleep_interruptible(5); + if (runs++ > (maxpoll + 1000)) /* 5 seconds */ + return -1; + } + } + + return status; +} + +/* Waithand2 is used when the qcam is in bidirectional mode, and the + * handshaking signal is CamRdy2 (bit 0 of data reg) instead of CamRdy1 + * (bit 3 of status register). It also returns the last value read, + * since this data is useful. */ + +static unsigned int qc_waithand2(struct qcam *q, int val) +{ + unsigned int status; + int runs = 0; + + do { + status = read_lpdata(q); + /* 1000 is enough spins on the I/O for all normal + cases, at that point we start to poll slowly + until the camera wakes up. However, we are + busy blocked until the camera responds, so + setting it lower is much better for interactive + response. */ + + if (runs++ > maxpoll) + msleep_interruptible(5); + if (runs++ > (maxpoll + 1000)) /* 5 seconds */ + return 0; + } while ((status & 1) != val); + + return status; +} + +/* qc_command is probably a bit of a misnomer -- it's used to send + * bytes *to* the camera. Generally, these bytes are either commands + * or arguments to commands, so the name fits, but it still bugs me a + * bit. See the documentation for a list of commands. */ + +static int qc_command(struct qcam *q, int command) +{ + int n1, n2; + int cmd; + + write_lpdata(q, command); + write_lpcontrol(q, 6); + + n1 = qc_waithand(q, 1); + + write_lpcontrol(q, 0xe); + n2 = qc_waithand(q, 0); + + cmd = (n1 & 0xf0) | ((n2 & 0xf0) >> 4); + return cmd; +} + +static int qc_readparam(struct qcam *q) +{ + int n1, n2; + int cmd; + + write_lpcontrol(q, 6); + n1 = qc_waithand(q, 1); + + write_lpcontrol(q, 0xe); + n2 = qc_waithand(q, 0); + + cmd = (n1 & 0xf0) | ((n2 & 0xf0) >> 4); + return cmd; +} + + +/* Try to detect a QuickCam. It appears to flash the upper 4 bits of + the status register at 5-10 Hz. This is only used in the autoprobe + code. Be aware that this isn't the way Connectix detects the + camera (they send a reset and try to handshake), but this should be + almost completely safe, while their method screws up my printer if + I plug it in before the camera. */ + +static int qc_detect(struct qcam *q) +{ + int reg, lastreg; + int count = 0; + int i; + + if (force_init) + return 1; + + lastreg = reg = read_lpstatus(q) & 0xf0; + + for (i = 0; i < 500; i++) { + reg = read_lpstatus(q) & 0xf0; + if (reg != lastreg) + count++; + lastreg = reg; + mdelay(2); + } + + +#if 0 + /* Force camera detection during testing. Sometimes the camera + won't be flashing these bits. Possibly unloading the module + in the middle of a grab? Or some timeout condition? + I've seen this parameter as low as 19 on my 450Mhz box - mpc */ + printk(KERN_DEBUG "Debugging: QCam detection counter <30-200 counts as detected>: %d\n", count); + return 1; +#endif + + /* Be (even more) liberal in what you accept... */ + + if (count > 20 && count < 400) { + return 1; /* found */ + } else { + printk(KERN_ERR "No Quickcam found on port %s\n", + q->pport->name); + printk(KERN_DEBUG "Quickcam detection counter: %u\n", count); + return 0; /* not found */ + } +} + +/* Decide which scan mode to use. There's no real requirement that + * the scanmode match the resolution in q->height and q-> width -- the + * camera takes the picture at the resolution specified in the + * "scanmode" and then returns the image at the resolution specified + * with the resolution commands. If the scan is bigger than the + * requested resolution, the upper-left hand corner of the scan is + * returned. If the scan is smaller, then the rest of the image + * returned contains garbage. */ + +static int qc_setscanmode(struct qcam *q) +{ + int old_mode = q->mode; + + switch (q->transfer_scale) { + case 1: + q->mode = 0; + break; + case 2: + q->mode = 4; + break; + case 4: + q->mode = 8; + break; + } + + switch (q->bpp) { + case 4: + break; + case 6: + q->mode += 2; + break; + } + + switch (q->port_mode & QC_MODE_MASK) { + case QC_BIDIR: + q->mode += 1; + break; + case QC_NOTSET: + case QC_UNIDIR: + break; + } + + if (q->mode != old_mode) + q->status |= QC_PARAM_CHANGE; + + return 0; +} + + +/* Reset the QuickCam. This uses the same sequence the Windows + * QuickPic program uses. Someone with a bi-directional port should + * check that bi-directional mode is detected right, and then + * implement bi-directional mode in qc_readbyte(). */ + +static void qc_reset(struct qcam *q) +{ + switch (q->port_mode & QC_FORCE_MASK) { + case QC_FORCE_UNIDIR: + q->port_mode = (q->port_mode & ~QC_MODE_MASK) | QC_UNIDIR; + break; + + case QC_FORCE_BIDIR: + q->port_mode = (q->port_mode & ~QC_MODE_MASK) | QC_BIDIR; + break; + + case QC_ANY: + write_lpcontrol(q, 0x20); + write_lpdata(q, 0x75); + + if (read_lpdata(q) != 0x75) + q->port_mode = (q->port_mode & ~QC_MODE_MASK) | QC_BIDIR; + else + q->port_mode = (q->port_mode & ~QC_MODE_MASK) | QC_UNIDIR; + break; + } + + write_lpcontrol(q, 0xb); + udelay(250); + write_lpcontrol(q, 0xe); + qc_setscanmode(q); /* in case port_mode changed */ +} + + + +/* Reset the QuickCam and program for brightness, contrast, + * white-balance, and resolution. */ + +static void qc_set(struct qcam *q) +{ + int val; + int val2; + + /* Set the brightness. Yes, this is repetitive, but it works. + * Shorter versions seem to fail subtly. Feel free to try :-). */ + /* I think the problem was in qc_command, not here -- bls */ + + qc_command(q, 0xb); + qc_command(q, q->brightness); + + val = q->height / q->transfer_scale; + qc_command(q, 0x11); + qc_command(q, val); + if ((q->port_mode & QC_MODE_MASK) == QC_UNIDIR && q->bpp == 6) { + /* The normal "transfers per line" calculation doesn't seem to work + as expected here (and yet it works fine in qc_scan). No idea + why this case is the odd man out. Fortunately, Laird's original + working version gives me a good way to guess at working values. + -- bls */ + val = q->width; + val2 = q->transfer_scale * 4; + } else { + val = q->width * q->bpp; + val2 = (((q->port_mode & QC_MODE_MASK) == QC_BIDIR) ? 24 : 8) * + q->transfer_scale; + } + val = DIV_ROUND_UP(val, val2); + qc_command(q, 0x13); + qc_command(q, val); + + /* Setting top and left -- bls */ + qc_command(q, 0xd); + qc_command(q, q->top); + qc_command(q, 0xf); + qc_command(q, q->left / 2); + + qc_command(q, 0x19); + qc_command(q, q->contrast); + qc_command(q, 0x1f); + qc_command(q, q->whitebal); + + /* Clear flag that we must update the grabbing parameters on the camera + before we grab the next frame */ + q->status &= (~QC_PARAM_CHANGE); +} + +/* Qc_readbytes reads some bytes from the QC and puts them in + the supplied buffer. It returns the number of bytes read, + or -1 on error. */ + +static inline int qc_readbytes(struct qcam *q, char buffer[]) +{ + int ret = 1; + unsigned int hi, lo; + unsigned int hi2, lo2; + static int state; + + if (buffer == NULL) { + state = 0; + return 0; + } + + switch (q->port_mode & QC_MODE_MASK) { + case QC_BIDIR: /* Bi-directional Port */ + write_lpcontrol(q, 0x26); + lo = (qc_waithand2(q, 1) >> 1); + hi = (read_lpstatus(q) >> 3) & 0x1f; + write_lpcontrol(q, 0x2e); + lo2 = (qc_waithand2(q, 0) >> 1); + hi2 = (read_lpstatus(q) >> 3) & 0x1f; + switch (q->bpp) { + case 4: + buffer[0] = lo & 0xf; + buffer[1] = ((lo & 0x70) >> 4) | ((hi & 1) << 3); + buffer[2] = (hi & 0x1e) >> 1; + buffer[3] = lo2 & 0xf; + buffer[4] = ((lo2 & 0x70) >> 4) | ((hi2 & 1) << 3); + buffer[5] = (hi2 & 0x1e) >> 1; + ret = 6; + break; + case 6: + buffer[0] = lo & 0x3f; + buffer[1] = ((lo & 0x40) >> 6) | (hi << 1); + buffer[2] = lo2 & 0x3f; + buffer[3] = ((lo2 & 0x40) >> 6) | (hi2 << 1); + ret = 4; + break; + } + break; + + case QC_UNIDIR: /* Unidirectional Port */ + write_lpcontrol(q, 6); + lo = (qc_waithand(q, 1) & 0xf0) >> 4; + write_lpcontrol(q, 0xe); + hi = (qc_waithand(q, 0) & 0xf0) >> 4; + + switch (q->bpp) { + case 4: + buffer[0] = lo; + buffer[1] = hi; + ret = 2; + break; + case 6: + switch (state) { + case 0: + buffer[0] = (lo << 2) | ((hi & 0xc) >> 2); + q->saved_bits = (hi & 3) << 4; + state = 1; + ret = 1; + break; + case 1: + buffer[0] = lo | q->saved_bits; + q->saved_bits = hi << 2; + state = 2; + ret = 1; + break; + case 2: + buffer[0] = ((lo & 0xc) >> 2) | q->saved_bits; + buffer[1] = ((lo & 3) << 4) | hi; + state = 0; + ret = 2; + break; + } + break; + } + break; + } + return ret; +} + +/* requests a scan from the camera. It sends the correct instructions + * to the camera and then reads back the correct number of bytes. In + * previous versions of this routine the return structure contained + * the raw output from the camera, and there was a 'qc_convertscan' + * function that converted that to a useful format. In version 0.3 I + * rolled qc_convertscan into qc_scan and now I only return the + * converted scan. The format is just an one-dimensional array of + * characters, one for each pixel, with 0=black up to n=white, where + * n=2^(bit depth)-1. Ask me for more details if you don't understand + * this. */ + +static long qc_capture(struct qcam *q, u8 *buf, unsigned long len) +{ + int i, j, k, yield; + int bytes; + int linestotrans, transperline; + int divisor; + int pixels_per_line; + int pixels_read = 0; + int got = 0; + char buffer[6]; + int shift = 8 - q->bpp; + char invert; + + if (q->mode == -1) + return -ENXIO; + + qc_command(q, 0x7); + qc_command(q, q->mode); + + if ((q->port_mode & QC_MODE_MASK) == QC_BIDIR) { + write_lpcontrol(q, 0x2e); /* turn port around */ + write_lpcontrol(q, 0x26); + qc_waithand(q, 1); + write_lpcontrol(q, 0x2e); + qc_waithand(q, 0); + } + + /* strange -- should be 15:63 below, but 4bpp is odd */ + invert = (q->bpp == 4) ? 16 : 63; + + linestotrans = q->height / q->transfer_scale; + pixels_per_line = q->width / q->transfer_scale; + transperline = q->width * q->bpp; + divisor = (((q->port_mode & QC_MODE_MASK) == QC_BIDIR) ? 24 : 8) * + q->transfer_scale; + transperline = DIV_ROUND_UP(transperline, divisor); + + for (i = 0, yield = yieldlines; i < linestotrans; i++) { + for (pixels_read = j = 0; j < transperline; j++) { + bytes = qc_readbytes(q, buffer); + for (k = 0; k < bytes && (pixels_read + k) < pixels_per_line; k++) { + int o; + if (buffer[k] == 0 && invert == 16) { + /* 4bpp is odd (again) -- inverter is 16, not 15, but output + must be 0-15 -- bls */ + buffer[k] = 16; + } + o = i * pixels_per_line + pixels_read + k; + if (o < len) { + u8 ch = invert - buffer[k]; + got++; + buf[o] = ch << shift; + } + } + pixels_read += bytes; + } + qc_readbytes(q, NULL); /* reset state machine */ + + /* Grabbing an entire frame from the quickcam is a lengthy + process. We don't (usually) want to busy-block the + processor for the entire frame. yieldlines is a module + parameter. If we yield every line, the minimum frame + time will be 240 / 200 = 1.2 seconds. The compile-time + default is to yield every 4 lines. */ + if (i >= yield) { + msleep_interruptible(5); + yield = i + yieldlines; + } + } + + if ((q->port_mode & QC_MODE_MASK) == QC_BIDIR) { + write_lpcontrol(q, 2); + write_lpcontrol(q, 6); + udelay(3); + write_lpcontrol(q, 0xe); + } + if (got < len) + return got; + return len; +} + +/* ------------------------------------------------------------------ + Videobuf operations + ------------------------------------------------------------------*/ +static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, + unsigned int *nbuffers, unsigned int *nplanes, + unsigned int sizes[], void *alloc_ctxs[]) +{ + struct qcam *dev = vb2_get_drv_priv(vq); + + if (0 == *nbuffers) + *nbuffers = 3; + *nplanes = 1; + mutex_lock(&dev->lock); + if (fmt) + sizes[0] = fmt->fmt.pix.width * fmt->fmt.pix.height; + else + sizes[0] = (dev->width / dev->transfer_scale) * + (dev->height / dev->transfer_scale); + mutex_unlock(&dev->lock); + return 0; +} + +static void buffer_queue(struct vb2_buffer *vb) +{ + vb2_buffer_done(vb, VB2_BUF_STATE_DONE); +} + +static void buffer_finish(struct vb2_buffer *vb) +{ + struct qcam *qcam = vb2_get_drv_priv(vb->vb2_queue); + void *vbuf = vb2_plane_vaddr(vb, 0); + int size = vb->vb2_queue->plane_sizes[0]; + int len; + + if (!vb2_is_streaming(vb->vb2_queue)) + return; + + mutex_lock(&qcam->lock); + parport_claim_or_block(qcam->pdev); + + qc_reset(qcam); + + /* Update the camera parameters if we need to */ + if (qcam->status & QC_PARAM_CHANGE) + qc_set(qcam); + + len = qc_capture(qcam, vbuf, size); + + parport_release(qcam->pdev); + mutex_unlock(&qcam->lock); + v4l2_get_timestamp(&vb->v4l2_buf.timestamp); + if (len != size) + vb->state = VB2_BUF_STATE_ERROR; + vb2_set_plane_payload(vb, 0, len); +} + +static struct vb2_ops qcam_video_qops = { + .queue_setup = queue_setup, + .buf_queue = buffer_queue, + .buf_finish = buffer_finish, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +/* + * Video4linux interfacing + */ + +static int qcam_querycap(struct file *file, void *priv, + struct v4l2_capability *vcap) +{ + struct qcam *qcam = video_drvdata(file); + + strlcpy(vcap->driver, qcam->v4l2_dev.name, sizeof(vcap->driver)); + strlcpy(vcap->card, "Connectix B&W Quickcam", sizeof(vcap->card)); + strlcpy(vcap->bus_info, qcam->pport->name, sizeof(vcap->bus_info)); + vcap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | + V4L2_CAP_STREAMING; + vcap->capabilities = vcap->device_caps | V4L2_CAP_DEVICE_CAPS; + return 0; +} + +static int qcam_enum_input(struct file *file, void *fh, struct v4l2_input *vin) +{ + if (vin->index > 0) + return -EINVAL; + strlcpy(vin->name, "Camera", sizeof(vin->name)); + vin->type = V4L2_INPUT_TYPE_CAMERA; + vin->audioset = 0; + vin->tuner = 0; + vin->std = 0; + vin->status = 0; + return 0; +} + +static int qcam_g_input(struct file *file, void *fh, unsigned int *inp) +{ + *inp = 0; + return 0; +} + +static int qcam_s_input(struct file *file, void *fh, unsigned int inp) +{ + return (inp > 0) ? -EINVAL : 0; +} + +static int qcam_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct qcam *qcam = video_drvdata(file); + struct v4l2_pix_format *pix = &fmt->fmt.pix; + + pix->width = qcam->width / qcam->transfer_scale; + pix->height = qcam->height / qcam->transfer_scale; + pix->pixelformat = (qcam->bpp == 4) ? V4L2_PIX_FMT_Y4 : V4L2_PIX_FMT_Y6; + pix->field = V4L2_FIELD_NONE; + pix->bytesperline = pix->width; + pix->sizeimage = pix->width * pix->height; + /* Just a guess */ + pix->colorspace = V4L2_COLORSPACE_SRGB; + return 0; +} + +static int qcam_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct v4l2_pix_format *pix = &fmt->fmt.pix; + + if (pix->height <= 60 || pix->width <= 80) { + pix->height = 60; + pix->width = 80; + } else if (pix->height <= 120 || pix->width <= 160) { + pix->height = 120; + pix->width = 160; + } else { + pix->height = 240; + pix->width = 320; + } + if (pix->pixelformat != V4L2_PIX_FMT_Y4 && + pix->pixelformat != V4L2_PIX_FMT_Y6) + pix->pixelformat = V4L2_PIX_FMT_Y4; + pix->field = V4L2_FIELD_NONE; + pix->bytesperline = pix->width; + pix->sizeimage = pix->width * pix->height; + /* Just a guess */ + pix->colorspace = V4L2_COLORSPACE_SRGB; + return 0; +} + +static int qcam_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct qcam *qcam = video_drvdata(file); + struct v4l2_pix_format *pix = &fmt->fmt.pix; + int ret = qcam_try_fmt_vid_cap(file, fh, fmt); + + if (ret) + return ret; + if (vb2_is_busy(&qcam->vb_vidq)) + return -EBUSY; + qcam->width = 320; + qcam->height = 240; + if (pix->height == 60) + qcam->transfer_scale = 4; + else if (pix->height == 120) + qcam->transfer_scale = 2; + else + qcam->transfer_scale = 1; + if (pix->pixelformat == V4L2_PIX_FMT_Y6) + qcam->bpp = 6; + else + qcam->bpp = 4; + + qc_setscanmode(qcam); + /* We must update the camera before we grab. We could + just have changed the grab size */ + qcam->status |= QC_PARAM_CHANGE; + return 0; +} + +static int qcam_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *fmt) +{ + static struct v4l2_fmtdesc formats[] = { + { 0, 0, 0, + "4-Bit Monochrome", V4L2_PIX_FMT_Y4, + { 0, 0, 0, 0 } + }, + { 1, 0, 0, + "6-Bit Monochrome", V4L2_PIX_FMT_Y6, + { 0, 0, 0, 0 } + }, + }; + enum v4l2_buf_type type = fmt->type; + + if (fmt->index > 1) + return -EINVAL; + + *fmt = formats[fmt->index]; + fmt->type = type; + return 0; +} + +static int qcam_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + static const struct v4l2_frmsize_discrete sizes[] = { + { 80, 60 }, + { 160, 120 }, + { 320, 240 }, + }; + + if (fsize->index > 2) + return -EINVAL; + if (fsize->pixel_format != V4L2_PIX_FMT_Y4 && + fsize->pixel_format != V4L2_PIX_FMT_Y6) + return -EINVAL; + fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; + fsize->discrete = sizes[fsize->index]; + return 0; +} + +static int qcam_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct qcam *qcam = + container_of(ctrl->handler, struct qcam, hdl); + int ret = 0; + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + qcam->brightness = ctrl->val; + break; + case V4L2_CID_CONTRAST: + qcam->contrast = ctrl->val; + break; + case V4L2_CID_GAMMA: + qcam->whitebal = ctrl->val; + break; + default: + ret = -EINVAL; + break; + } + if (ret == 0) + qcam->status |= QC_PARAM_CHANGE; + return ret; +} + +static const struct v4l2_file_operations qcam_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = vb2_fop_release, + .poll = vb2_fop_poll, + .unlocked_ioctl = video_ioctl2, + .read = vb2_fop_read, + .mmap = vb2_fop_mmap, +}; + +static const struct v4l2_ioctl_ops qcam_ioctl_ops = { + .vidioc_querycap = qcam_querycap, + .vidioc_g_input = qcam_g_input, + .vidioc_s_input = qcam_s_input, + .vidioc_enum_input = qcam_enum_input, + .vidioc_enum_fmt_vid_cap = qcam_enum_fmt_vid_cap, + .vidioc_enum_framesizes = qcam_enum_framesizes, + .vidioc_g_fmt_vid_cap = qcam_g_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = qcam_s_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = qcam_try_fmt_vid_cap, + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_create_bufs = vb2_ioctl_create_bufs, + .vidioc_prepare_buf = vb2_ioctl_prepare_buf, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +static const struct v4l2_ctrl_ops qcam_ctrl_ops = { + .s_ctrl = qcam_s_ctrl, +}; + +/* Initialize the QuickCam driver control structure. This is where + * defaults are set for people who don't have a config file.*/ + +static struct qcam *qcam_init(struct parport *port) +{ + struct qcam *qcam; + struct v4l2_device *v4l2_dev; + struct vb2_queue *q; + int err; + + qcam = kzalloc(sizeof(struct qcam), GFP_KERNEL); + if (qcam == NULL) + return NULL; + + v4l2_dev = &qcam->v4l2_dev; + snprintf(v4l2_dev->name, sizeof(v4l2_dev->name), "bw-qcam%u", num_cams); + + if (v4l2_device_register(port->dev, v4l2_dev) < 0) { + v4l2_err(v4l2_dev, "Could not register v4l2_device\n"); + kfree(qcam); + return NULL; + } + + v4l2_ctrl_handler_init(&qcam->hdl, 3); + v4l2_ctrl_new_std(&qcam->hdl, &qcam_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 180); + v4l2_ctrl_new_std(&qcam->hdl, &qcam_ctrl_ops, + V4L2_CID_CONTRAST, 0, 255, 1, 192); + v4l2_ctrl_new_std(&qcam->hdl, &qcam_ctrl_ops, + V4L2_CID_GAMMA, 0, 255, 1, 105); + if (qcam->hdl.error) { + v4l2_err(v4l2_dev, "couldn't register controls\n"); + goto exit; + } + + mutex_init(&qcam->lock); + mutex_init(&qcam->queue_lock); + + /* initialize queue */ + q = &qcam->vb_vidq; + q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ; + q->drv_priv = qcam; + q->ops = &qcam_video_qops; + q->mem_ops = &vb2_vmalloc_memops; + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + err = vb2_queue_init(q); + if (err < 0) { + v4l2_err(v4l2_dev, "couldn't init vb2_queue for %s.\n", port->name); + goto exit; + } + qcam->vdev.queue = q; + qcam->vdev.queue->lock = &qcam->queue_lock; + + qcam->pport = port; + qcam->pdev = parport_register_device(port, v4l2_dev->name, NULL, NULL, + NULL, 0, NULL); + if (qcam->pdev == NULL) { + v4l2_err(v4l2_dev, "couldn't register for %s.\n", port->name); + goto exit; + } + + strlcpy(qcam->vdev.name, "Connectix QuickCam", sizeof(qcam->vdev.name)); + qcam->vdev.v4l2_dev = v4l2_dev; + qcam->vdev.ctrl_handler = &qcam->hdl; + qcam->vdev.fops = &qcam_fops; + qcam->vdev.lock = &qcam->lock; + qcam->vdev.ioctl_ops = &qcam_ioctl_ops; + qcam->vdev.release = video_device_release_empty; + video_set_drvdata(&qcam->vdev, qcam); + + qcam->port_mode = (QC_ANY | QC_NOTSET); + qcam->width = 320; + qcam->height = 240; + qcam->bpp = 4; + qcam->transfer_scale = 2; + qcam->contrast = 192; + qcam->brightness = 180; + qcam->whitebal = 105; + qcam->top = 1; + qcam->left = 14; + qcam->mode = -1; + qcam->status = QC_PARAM_CHANGE; + return qcam; + +exit: + v4l2_ctrl_handler_free(&qcam->hdl); + kfree(qcam); + return NULL; +} + +static int qc_calibrate(struct qcam *q) +{ + /* + * Bugfix by Hanno Mueller hmueller@kabel.de, Mai 21 96 + * The white balance is an individual value for each + * quickcam. + */ + + int value; + int count = 0; + + qc_command(q, 27); /* AutoAdjustOffset */ + qc_command(q, 0); /* Dummy Parameter, ignored by the camera */ + + /* GetOffset (33) will read 255 until autocalibration */ + /* is finished. After that, a value of 1-254 will be */ + /* returned. */ + + do { + qc_command(q, 33); + value = qc_readparam(q); + mdelay(1); + schedule(); + count++; + } while (value == 0xff && count < 2048); + + q->whitebal = value; + return value; +} + +static int init_bwqcam(struct parport *port) +{ + struct qcam *qcam; + + if (num_cams == MAX_CAMS) { + printk(KERN_ERR "Too many Quickcams (max %d)\n", MAX_CAMS); + return -ENOSPC; + } + + qcam = qcam_init(port); + if (qcam == NULL) + return -ENODEV; + + parport_claim_or_block(qcam->pdev); + + qc_reset(qcam); + + if (qc_detect(qcam) == 0) { + parport_release(qcam->pdev); + parport_unregister_device(qcam->pdev); + kfree(qcam); + return -ENODEV; + } + qc_calibrate(qcam); + v4l2_ctrl_handler_setup(&qcam->hdl); + + parport_release(qcam->pdev); + + v4l2_info(&qcam->v4l2_dev, "Connectix Quickcam on %s\n", qcam->pport->name); + + if (video_register_device(&qcam->vdev, VFL_TYPE_GRABBER, video_nr) < 0) { + parport_unregister_device(qcam->pdev); + kfree(qcam); + return -ENODEV; + } + + qcams[num_cams++] = qcam; + + return 0; +} + +static void close_bwqcam(struct qcam *qcam) +{ + video_unregister_device(&qcam->vdev); + v4l2_ctrl_handler_free(&qcam->hdl); + parport_unregister_device(qcam->pdev); + kfree(qcam); +} + +/* The parport parameter controls which parports will be scanned. + * Scanning all parports causes some printers to print a garbage page. + * -- March 14, 1999 Billy Donahue <billy@escape.com> */ +#ifdef MODULE +static char *parport[MAX_CAMS] = { NULL, }; +module_param_array(parport, charp, NULL, 0); +#endif + +static int accept_bwqcam(struct parport *port) +{ +#ifdef MODULE + int n; + + if (parport[0] && strncmp(parport[0], "auto", 4) != 0) { + /* user gave parport parameters */ + for (n = 0; n < MAX_CAMS && parport[n]; n++) { + char *ep; + unsigned long r; + r = simple_strtoul(parport[n], &ep, 0); + if (ep == parport[n]) { + printk(KERN_ERR + "bw-qcam: bad port specifier \"%s\"\n", + parport[n]); + continue; + } + if (r == port->number) + return 1; + } + return 0; + } +#endif + return 1; +} + +static void bwqcam_attach(struct parport *port) +{ + if (accept_bwqcam(port)) + init_bwqcam(port); +} + +static void bwqcam_detach(struct parport *port) +{ + int i; + for (i = 0; i < num_cams; i++) { + struct qcam *qcam = qcams[i]; + if (qcam && qcam->pdev->port == port) { + qcams[i] = NULL; + close_bwqcam(qcam); + } + } +} + +static struct parport_driver bwqcam_driver = { + .name = "bw-qcam", + .attach = bwqcam_attach, + .detach = bwqcam_detach, +}; + +static void __exit exit_bw_qcams(void) +{ + parport_unregister_driver(&bwqcam_driver); +} + +static int __init init_bw_qcams(void) +{ +#ifdef MODULE + /* Do some sanity checks on the module parameters. */ + if (maxpoll > 5000) { + printk(KERN_INFO "Connectix Quickcam max-poll was above 5000. Using 5000.\n"); + maxpoll = 5000; + } + + if (yieldlines < 1) { + printk(KERN_INFO "Connectix Quickcam yieldlines was less than 1. Using 1.\n"); + yieldlines = 1; + } +#endif + return parport_register_driver(&bwqcam_driver); +} + +module_init(init_bw_qcams); +module_exit(exit_bw_qcams); + +MODULE_LICENSE("GPL"); +MODULE_VERSION("0.0.3"); diff --git a/drivers/staging/media/parport/c-qcam.c b/drivers/staging/media/parport/c-qcam.c new file mode 100644 index 000000000000..b9010bd3ed3e --- /dev/null +++ b/drivers/staging/media/parport/c-qcam.c @@ -0,0 +1,882 @@ +/* + * Video4Linux Colour QuickCam driver + * Copyright 1997-2000 Philip Blundell <philb@gnu.org> + * + * Module parameters: + * + * parport=auto -- probe all parports (default) + * parport=0 -- parport0 becomes qcam1 + * parport=2,0,1 -- parports 2,0,1 are tried in that order + * + * probe=0 -- do no probing, assume camera is present + * probe=1 -- use IEEE-1284 autoprobe data only (default) + * probe=2 -- probe aggressively for cameras + * + * force_rgb=1 -- force data format to RGB (default is BGR) + * + * The parport parameter controls which parports will be scanned. + * Scanning all parports causes some printers to print a garbage page. + * -- March 14, 1999 Billy Donahue <billy@escape.com> + * + * Fixed data format to BGR, added force_rgb parameter. Added missing + * parport_unregister_driver() on module removal. + * -- May 28, 2000 Claudio Matsuoka <claudio@conectiva.com> + */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/fs.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/mm.h> +#include <linux/parport.h> +#include <linux/sched.h> +#include <linux/mutex.h> +#include <linux/jiffies.h> +#include <linux/videodev2.h> +#include <asm/uaccess.h> +#include <media/v4l2-device.h> +#include <media/v4l2-common.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-event.h> + +struct qcam { + struct v4l2_device v4l2_dev; + struct video_device vdev; + struct v4l2_ctrl_handler hdl; + struct pardevice *pdev; + struct parport *pport; + int width, height; + int ccd_width, ccd_height; + int mode; + int contrast, brightness, whitebal; + int top, left; + unsigned int bidirectional; + struct mutex lock; +}; + +/* cameras maximum */ +#define MAX_CAMS 4 + +/* The three possible QuickCam modes */ +#define QC_MILLIONS 0x18 +#define QC_BILLIONS 0x10 +#define QC_THOUSANDS 0x08 /* with VIDEC compression (not supported) */ + +/* The three possible decimations */ +#define QC_DECIMATION_1 0 +#define QC_DECIMATION_2 2 +#define QC_DECIMATION_4 4 + +#define BANNER "Colour QuickCam for Video4Linux v0.06" + +static int parport[MAX_CAMS] = { [1 ... MAX_CAMS-1] = -1 }; +static int probe = 2; +static bool force_rgb; +static int video_nr = -1; + +/* FIXME: parport=auto would never have worked, surely? --RR */ +MODULE_PARM_DESC(parport, "parport=<auto|n[,n]...> for port detection method\n" + "probe=<0|1|2> for camera detection method\n" + "force_rgb=<0|1> for RGB data format (default BGR)"); +module_param_array(parport, int, NULL, 0); +module_param(probe, int, 0); +module_param(force_rgb, bool, 0); +module_param(video_nr, int, 0); + +static struct qcam *qcams[MAX_CAMS]; +static unsigned int num_cams; + +static inline void qcam_set_ack(struct qcam *qcam, unsigned int i) +{ + /* note: the QC specs refer to the PCAck pin by voltage, not + software level. PC ports have builtin inverters. */ + parport_frob_control(qcam->pport, 8, i ? 8 : 0); +} + +static inline unsigned int qcam_ready1(struct qcam *qcam) +{ + return (parport_read_status(qcam->pport) & 0x8) ? 1 : 0; +} + +static inline unsigned int qcam_ready2(struct qcam *qcam) +{ + return (parport_read_data(qcam->pport) & 0x1) ? 1 : 0; +} + +static unsigned int qcam_await_ready1(struct qcam *qcam, int value) +{ + struct v4l2_device *v4l2_dev = &qcam->v4l2_dev; + unsigned long oldjiffies = jiffies; + unsigned int i; + + for (oldjiffies = jiffies; + time_before(jiffies, oldjiffies + msecs_to_jiffies(40));) + if (qcam_ready1(qcam) == value) + return 0; + + /* If the camera didn't respond within 1/25 second, poll slowly + for a while. */ + for (i = 0; i < 50; i++) { + if (qcam_ready1(qcam) == value) + return 0; + msleep_interruptible(100); + } + + /* Probably somebody pulled the plug out. Not much we can do. */ + v4l2_err(v4l2_dev, "ready1 timeout (%d) %x %x\n", value, + parport_read_status(qcam->pport), + parport_read_control(qcam->pport)); + return 1; +} + +static unsigned int qcam_await_ready2(struct qcam *qcam, int value) +{ + struct v4l2_device *v4l2_dev = &qcam->v4l2_dev; + unsigned long oldjiffies = jiffies; + unsigned int i; + + for (oldjiffies = jiffies; + time_before(jiffies, oldjiffies + msecs_to_jiffies(40));) + if (qcam_ready2(qcam) == value) + return 0; + + /* If the camera didn't respond within 1/25 second, poll slowly + for a while. */ + for (i = 0; i < 50; i++) { + if (qcam_ready2(qcam) == value) + return 0; + msleep_interruptible(100); + } + + /* Probably somebody pulled the plug out. Not much we can do. */ + v4l2_err(v4l2_dev, "ready2 timeout (%d) %x %x %x\n", value, + parport_read_status(qcam->pport), + parport_read_control(qcam->pport), + parport_read_data(qcam->pport)); + return 1; +} + +static int qcam_read_data(struct qcam *qcam) +{ + unsigned int idata; + + qcam_set_ack(qcam, 0); + if (qcam_await_ready1(qcam, 1)) + return -1; + idata = parport_read_status(qcam->pport) & 0xf0; + qcam_set_ack(qcam, 1); + if (qcam_await_ready1(qcam, 0)) + return -1; + idata |= parport_read_status(qcam->pport) >> 4; + return idata; +} + +static int qcam_write_data(struct qcam *qcam, unsigned int data) +{ + struct v4l2_device *v4l2_dev = &qcam->v4l2_dev; + unsigned int idata; + + parport_write_data(qcam->pport, data); + idata = qcam_read_data(qcam); + if (data != idata) { + v4l2_warn(v4l2_dev, "sent %x but received %x\n", data, + idata); + return 1; + } + return 0; +} + +static inline int qcam_set(struct qcam *qcam, unsigned int cmd, unsigned int data) +{ + if (qcam_write_data(qcam, cmd)) + return -1; + if (qcam_write_data(qcam, data)) + return -1; + return 0; +} + +static inline int qcam_get(struct qcam *qcam, unsigned int cmd) +{ + if (qcam_write_data(qcam, cmd)) + return -1; + return qcam_read_data(qcam); +} + +static int qc_detect(struct qcam *qcam) +{ + unsigned int stat, ostat, i, count = 0; + + /* The probe routine below is not very reliable. The IEEE-1284 + probe takes precedence. */ + /* XXX Currently parport provides no way to distinguish between + "the IEEE probe was not done" and "the probe was done, but + no device was found". Fix this one day. */ + if (qcam->pport->probe_info[0].class == PARPORT_CLASS_MEDIA + && qcam->pport->probe_info[0].model + && !strcmp(qcam->pdev->port->probe_info[0].model, + "Color QuickCam 2.0")) { + printk(KERN_DEBUG "QuickCam: Found by IEEE1284 probe.\n"); + return 1; + } + + if (probe < 2) + return 0; + + parport_write_control(qcam->pport, 0xc); + + /* look for a heartbeat */ + ostat = stat = parport_read_status(qcam->pport); + for (i = 0; i < 250; i++) { + mdelay(1); + stat = parport_read_status(qcam->pport); + if (ostat != stat) { + if (++count >= 3) + return 1; + ostat = stat; + } + } + + /* Reset the camera and try again */ + parport_write_control(qcam->pport, 0xc); + parport_write_control(qcam->pport, 0x8); + mdelay(1); + parport_write_control(qcam->pport, 0xc); + mdelay(1); + count = 0; + + ostat = stat = parport_read_status(qcam->pport); + for (i = 0; i < 250; i++) { + mdelay(1); + stat = parport_read_status(qcam->pport); + if (ostat != stat) { + if (++count >= 3) + return 1; + ostat = stat; + } + } + + /* no (or flatline) camera, give up */ + return 0; +} + +static void qc_reset(struct qcam *qcam) +{ + parport_write_control(qcam->pport, 0xc); + parport_write_control(qcam->pport, 0x8); + mdelay(1); + parport_write_control(qcam->pport, 0xc); + mdelay(1); +} + +/* Reset the QuickCam and program for brightness, contrast, + * white-balance, and resolution. */ + +static void qc_setup(struct qcam *qcam) +{ + qc_reset(qcam); + + /* Set the brightness. */ + qcam_set(qcam, 11, qcam->brightness); + + /* Set the height and width. These refer to the actual + CCD area *before* applying the selected decimation. */ + qcam_set(qcam, 17, qcam->ccd_height); + qcam_set(qcam, 19, qcam->ccd_width / 2); + + /* Set top and left. */ + qcam_set(qcam, 0xd, qcam->top); + qcam_set(qcam, 0xf, qcam->left); + + /* Set contrast and white balance. */ + qcam_set(qcam, 0x19, qcam->contrast); + qcam_set(qcam, 0x1f, qcam->whitebal); + + /* Set the speed. */ + qcam_set(qcam, 45, 2); +} + +/* Read some bytes from the camera and put them in the buffer. + nbytes should be a multiple of 3, because bidirectional mode gives + us three bytes at a time. */ + +static unsigned int qcam_read_bytes(struct qcam *qcam, unsigned char *buf, unsigned int nbytes) +{ + unsigned int bytes = 0; + + qcam_set_ack(qcam, 0); + if (qcam->bidirectional) { + /* It's a bidirectional port */ + while (bytes < nbytes) { + unsigned int lo1, hi1, lo2, hi2; + unsigned char r, g, b; + + if (qcam_await_ready2(qcam, 1)) + return bytes; + lo1 = parport_read_data(qcam->pport) >> 1; + hi1 = ((parport_read_status(qcam->pport) >> 3) & 0x1f) ^ 0x10; + qcam_set_ack(qcam, 1); + if (qcam_await_ready2(qcam, 0)) + return bytes; + lo2 = parport_read_data(qcam->pport) >> 1; + hi2 = ((parport_read_status(qcam->pport) >> 3) & 0x1f) ^ 0x10; + qcam_set_ack(qcam, 0); + r = lo1 | ((hi1 & 1) << 7); + g = ((hi1 & 0x1e) << 3) | ((hi2 & 0x1e) >> 1); + b = lo2 | ((hi2 & 1) << 7); + if (force_rgb) { + buf[bytes++] = r; + buf[bytes++] = g; + buf[bytes++] = b; + } else { + buf[bytes++] = b; + buf[bytes++] = g; + buf[bytes++] = r; + } + } + } else { + /* It's a unidirectional port */ + int i = 0, n = bytes; + unsigned char rgb[3]; + + while (bytes < nbytes) { + unsigned int hi, lo; + + if (qcam_await_ready1(qcam, 1)) + return bytes; + hi = (parport_read_status(qcam->pport) & 0xf0); + qcam_set_ack(qcam, 1); + if (qcam_await_ready1(qcam, 0)) + return bytes; + lo = (parport_read_status(qcam->pport) & 0xf0); + qcam_set_ack(qcam, 0); + /* flip some bits */ + rgb[(i = bytes++ % 3)] = (hi | (lo >> 4)) ^ 0x88; + if (i >= 2) { +get_fragment: + if (force_rgb) { + buf[n++] = rgb[0]; + buf[n++] = rgb[1]; + buf[n++] = rgb[2]; + } else { + buf[n++] = rgb[2]; + buf[n++] = rgb[1]; + buf[n++] = rgb[0]; + } + } + } + if (i) { + i = 0; + goto get_fragment; + } + } + return bytes; +} + +#define BUFSZ 150 + +static long qc_capture(struct qcam *qcam, char __user *buf, unsigned long len) +{ + struct v4l2_device *v4l2_dev = &qcam->v4l2_dev; + unsigned lines, pixelsperline; + unsigned int is_bi_dir = qcam->bidirectional; + size_t wantlen, outptr = 0; + char tmpbuf[BUFSZ]; + + if (!access_ok(VERIFY_WRITE, buf, len)) + return -EFAULT; + + /* Wait for camera to become ready */ + for (;;) { + int i = qcam_get(qcam, 41); + + if (i == -1) { + qc_setup(qcam); + return -EIO; + } + if ((i & 0x80) == 0) + break; + schedule(); + } + + if (qcam_set(qcam, 7, (qcam->mode | (is_bi_dir ? 1 : 0)) + 1)) + return -EIO; + + lines = qcam->height; + pixelsperline = qcam->width; + + if (is_bi_dir) { + /* Turn the port around */ + parport_data_reverse(qcam->pport); + mdelay(3); + qcam_set_ack(qcam, 0); + if (qcam_await_ready1(qcam, 1)) { + qc_setup(qcam); + return -EIO; + } + qcam_set_ack(qcam, 1); + if (qcam_await_ready1(qcam, 0)) { + qc_setup(qcam); + return -EIO; + } + } + + wantlen = lines * pixelsperline * 24 / 8; + + while (wantlen) { + size_t t, s; + + s = (wantlen > BUFSZ) ? BUFSZ : wantlen; + t = qcam_read_bytes(qcam, tmpbuf, s); + if (outptr < len) { + size_t sz = len - outptr; + + if (sz > t) + sz = t; + if (__copy_to_user(buf + outptr, tmpbuf, sz)) + break; + outptr += sz; + } + wantlen -= t; + if (t < s) + break; + cond_resched(); + } + + len = outptr; + + if (wantlen) { + v4l2_err(v4l2_dev, "short read.\n"); + if (is_bi_dir) + parport_data_forward(qcam->pport); + qc_setup(qcam); + return len; + } + + if (is_bi_dir) { + int l; + + do { + l = qcam_read_bytes(qcam, tmpbuf, 3); + cond_resched(); + } while (l && (tmpbuf[0] == 0x7e || tmpbuf[1] == 0x7e || tmpbuf[2] == 0x7e)); + if (force_rgb) { + if (tmpbuf[0] != 0xe || tmpbuf[1] != 0x0 || tmpbuf[2] != 0xf) + v4l2_err(v4l2_dev, "bad EOF\n"); + } else { + if (tmpbuf[0] != 0xf || tmpbuf[1] != 0x0 || tmpbuf[2] != 0xe) + v4l2_err(v4l2_dev, "bad EOF\n"); + } + qcam_set_ack(qcam, 0); + if (qcam_await_ready1(qcam, 1)) { + v4l2_err(v4l2_dev, "no ack after EOF\n"); + parport_data_forward(qcam->pport); + qc_setup(qcam); + return len; + } + parport_data_forward(qcam->pport); + mdelay(3); + qcam_set_ack(qcam, 1); + if (qcam_await_ready1(qcam, 0)) { + v4l2_err(v4l2_dev, "no ack to port turnaround\n"); + qc_setup(qcam); + return len; + } + } else { + int l; + + do { + l = qcam_read_bytes(qcam, tmpbuf, 1); + cond_resched(); + } while (l && tmpbuf[0] == 0x7e); + l = qcam_read_bytes(qcam, tmpbuf + 1, 2); + if (force_rgb) { + if (tmpbuf[0] != 0xe || tmpbuf[1] != 0x0 || tmpbuf[2] != 0xf) + v4l2_err(v4l2_dev, "bad EOF\n"); + } else { + if (tmpbuf[0] != 0xf || tmpbuf[1] != 0x0 || tmpbuf[2] != 0xe) + v4l2_err(v4l2_dev, "bad EOF\n"); + } + } + + qcam_write_data(qcam, 0); + return len; +} + +/* + * Video4linux interfacing + */ + +static int qcam_querycap(struct file *file, void *priv, + struct v4l2_capability *vcap) +{ + struct qcam *qcam = video_drvdata(file); + + strlcpy(vcap->driver, qcam->v4l2_dev.name, sizeof(vcap->driver)); + strlcpy(vcap->card, "Color Quickcam", sizeof(vcap->card)); + strlcpy(vcap->bus_info, "parport", sizeof(vcap->bus_info)); + vcap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE; + vcap->capabilities = vcap->device_caps | V4L2_CAP_DEVICE_CAPS; + return 0; +} + +static int qcam_enum_input(struct file *file, void *fh, struct v4l2_input *vin) +{ + if (vin->index > 0) + return -EINVAL; + strlcpy(vin->name, "Camera", sizeof(vin->name)); + vin->type = V4L2_INPUT_TYPE_CAMERA; + vin->audioset = 0; + vin->tuner = 0; + vin->std = 0; + vin->status = 0; + return 0; +} + +static int qcam_g_input(struct file *file, void *fh, unsigned int *inp) +{ + *inp = 0; + return 0; +} + +static int qcam_s_input(struct file *file, void *fh, unsigned int inp) +{ + return (inp > 0) ? -EINVAL : 0; +} + +static int qcam_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct qcam *qcam = video_drvdata(file); + struct v4l2_pix_format *pix = &fmt->fmt.pix; + + pix->width = qcam->width; + pix->height = qcam->height; + pix->pixelformat = V4L2_PIX_FMT_RGB24; + pix->field = V4L2_FIELD_NONE; + pix->bytesperline = 3 * qcam->width; + pix->sizeimage = 3 * qcam->width * qcam->height; + /* Just a guess */ + pix->colorspace = V4L2_COLORSPACE_SRGB; + return 0; +} + +static int qcam_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct v4l2_pix_format *pix = &fmt->fmt.pix; + + if (pix->height < 60 || pix->width < 80) { + pix->height = 60; + pix->width = 80; + } else if (pix->height < 120 || pix->width < 160) { + pix->height = 120; + pix->width = 160; + } else { + pix->height = 240; + pix->width = 320; + } + pix->pixelformat = V4L2_PIX_FMT_RGB24; + pix->field = V4L2_FIELD_NONE; + pix->bytesperline = 3 * pix->width; + pix->sizeimage = 3 * pix->width * pix->height; + /* Just a guess */ + pix->colorspace = V4L2_COLORSPACE_SRGB; + return 0; +} + +static int qcam_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct qcam *qcam = video_drvdata(file); + struct v4l2_pix_format *pix = &fmt->fmt.pix; + int ret = qcam_try_fmt_vid_cap(file, fh, fmt); + + if (ret) + return ret; + switch (pix->height) { + case 60: + qcam->mode = QC_DECIMATION_4; + break; + case 120: + qcam->mode = QC_DECIMATION_2; + break; + default: + qcam->mode = QC_DECIMATION_1; + break; + } + + mutex_lock(&qcam->lock); + qcam->mode |= QC_MILLIONS; + qcam->height = pix->height; + qcam->width = pix->width; + parport_claim_or_block(qcam->pdev); + qc_setup(qcam); + parport_release(qcam->pdev); + mutex_unlock(&qcam->lock); + return 0; +} + +static int qcam_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *fmt) +{ + static struct v4l2_fmtdesc formats[] = { + { 0, 0, 0, + "RGB 8:8:8", V4L2_PIX_FMT_RGB24, + { 0, 0, 0, 0 } + }, + }; + enum v4l2_buf_type type = fmt->type; + + if (fmt->index > 0) + return -EINVAL; + + *fmt = formats[fmt->index]; + fmt->type = type; + return 0; +} + +static ssize_t qcam_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + struct qcam *qcam = video_drvdata(file); + int len; + + mutex_lock(&qcam->lock); + parport_claim_or_block(qcam->pdev); + /* Probably should have a semaphore against multiple users */ + len = qc_capture(qcam, buf, count); + parport_release(qcam->pdev); + mutex_unlock(&qcam->lock); + return len; +} + +static int qcam_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct qcam *qcam = + container_of(ctrl->handler, struct qcam, hdl); + int ret = 0; + + mutex_lock(&qcam->lock); + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + qcam->brightness = ctrl->val; + break; + case V4L2_CID_CONTRAST: + qcam->contrast = ctrl->val; + break; + case V4L2_CID_GAMMA: + qcam->whitebal = ctrl->val; + break; + default: + ret = -EINVAL; + break; + } + if (ret == 0) { + parport_claim_or_block(qcam->pdev); + qc_setup(qcam); + parport_release(qcam->pdev); + } + mutex_unlock(&qcam->lock); + return ret; +} + +static const struct v4l2_file_operations qcam_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = v4l2_fh_release, + .poll = v4l2_ctrl_poll, + .unlocked_ioctl = video_ioctl2, + .read = qcam_read, +}; + +static const struct v4l2_ioctl_ops qcam_ioctl_ops = { + .vidioc_querycap = qcam_querycap, + .vidioc_g_input = qcam_g_input, + .vidioc_s_input = qcam_s_input, + .vidioc_enum_input = qcam_enum_input, + .vidioc_enum_fmt_vid_cap = qcam_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = qcam_g_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = qcam_s_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = qcam_try_fmt_vid_cap, + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +static const struct v4l2_ctrl_ops qcam_ctrl_ops = { + .s_ctrl = qcam_s_ctrl, +}; + +/* Initialize the QuickCam driver control structure. */ + +static struct qcam *qcam_init(struct parport *port) +{ + struct qcam *qcam; + struct v4l2_device *v4l2_dev; + + qcam = kzalloc(sizeof(*qcam), GFP_KERNEL); + if (qcam == NULL) + return NULL; + + v4l2_dev = &qcam->v4l2_dev; + strlcpy(v4l2_dev->name, "c-qcam", sizeof(v4l2_dev->name)); + + if (v4l2_device_register(NULL, v4l2_dev) < 0) { + v4l2_err(v4l2_dev, "Could not register v4l2_device\n"); + kfree(qcam); + return NULL; + } + + v4l2_ctrl_handler_init(&qcam->hdl, 3); + v4l2_ctrl_new_std(&qcam->hdl, &qcam_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 240); + v4l2_ctrl_new_std(&qcam->hdl, &qcam_ctrl_ops, + V4L2_CID_CONTRAST, 0, 255, 1, 192); + v4l2_ctrl_new_std(&qcam->hdl, &qcam_ctrl_ops, + V4L2_CID_GAMMA, 0, 255, 1, 128); + if (qcam->hdl.error) { + v4l2_err(v4l2_dev, "couldn't register controls\n"); + v4l2_ctrl_handler_free(&qcam->hdl); + kfree(qcam); + return NULL; + } + + qcam->pport = port; + qcam->pdev = parport_register_device(port, "c-qcam", NULL, NULL, + NULL, 0, NULL); + + qcam->bidirectional = (qcam->pport->modes & PARPORT_MODE_TRISTATE) ? 1 : 0; + + if (qcam->pdev == NULL) { + v4l2_err(v4l2_dev, "couldn't register for %s.\n", port->name); + v4l2_ctrl_handler_free(&qcam->hdl); + kfree(qcam); + return NULL; + } + + strlcpy(qcam->vdev.name, "Colour QuickCam", sizeof(qcam->vdev.name)); + qcam->vdev.v4l2_dev = v4l2_dev; + qcam->vdev.fops = &qcam_fops; + qcam->vdev.ioctl_ops = &qcam_ioctl_ops; + qcam->vdev.release = video_device_release_empty; + qcam->vdev.ctrl_handler = &qcam->hdl; + video_set_drvdata(&qcam->vdev, qcam); + + mutex_init(&qcam->lock); + qcam->width = qcam->ccd_width = 320; + qcam->height = qcam->ccd_height = 240; + qcam->mode = QC_MILLIONS | QC_DECIMATION_1; + qcam->contrast = 192; + qcam->brightness = 240; + qcam->whitebal = 128; + qcam->top = 1; + qcam->left = 14; + return qcam; +} + +static int init_cqcam(struct parport *port) +{ + struct qcam *qcam; + struct v4l2_device *v4l2_dev; + + if (parport[0] != -1) { + /* The user gave specific instructions */ + int i, found = 0; + + for (i = 0; i < MAX_CAMS && parport[i] != -1; i++) { + if (parport[0] == port->number) + found = 1; + } + if (!found) + return -ENODEV; + } + + if (num_cams == MAX_CAMS) + return -ENOSPC; + + qcam = qcam_init(port); + if (qcam == NULL) + return -ENODEV; + + v4l2_dev = &qcam->v4l2_dev; + + parport_claim_or_block(qcam->pdev); + + qc_reset(qcam); + + if (probe && qc_detect(qcam) == 0) { + parport_release(qcam->pdev); + parport_unregister_device(qcam->pdev); + kfree(qcam); + return -ENODEV; + } + + qc_setup(qcam); + + parport_release(qcam->pdev); + + if (video_register_device(&qcam->vdev, VFL_TYPE_GRABBER, video_nr) < 0) { + v4l2_err(v4l2_dev, "Unable to register Colour QuickCam on %s\n", + qcam->pport->name); + parport_unregister_device(qcam->pdev); + kfree(qcam); + return -ENODEV; + } + + v4l2_info(v4l2_dev, "%s: Colour QuickCam found on %s\n", + video_device_node_name(&qcam->vdev), qcam->pport->name); + + qcams[num_cams++] = qcam; + + return 0; +} + +static void close_cqcam(struct qcam *qcam) +{ + video_unregister_device(&qcam->vdev); + v4l2_ctrl_handler_free(&qcam->hdl); + parport_unregister_device(qcam->pdev); + kfree(qcam); +} + +static void cq_attach(struct parport *port) +{ + init_cqcam(port); +} + +static void cq_detach(struct parport *port) +{ + /* Write this some day. */ +} + +static struct parport_driver cqcam_driver = { + .name = "cqcam", + .attach = cq_attach, + .detach = cq_detach, +}; + +static int __init cqcam_init(void) +{ + printk(KERN_INFO BANNER "\n"); + + return parport_register_driver(&cqcam_driver); +} + +static void __exit cqcam_cleanup(void) +{ + unsigned int i; + + for (i = 0; i < num_cams; i++) + close_cqcam(qcams[i]); + + parport_unregister_driver(&cqcam_driver); +} + +MODULE_AUTHOR("Philip Blundell <philb@gnu.org>"); +MODULE_DESCRIPTION(BANNER); +MODULE_LICENSE("GPL"); +MODULE_VERSION("0.0.4"); + +module_init(cqcam_init); +module_exit(cqcam_cleanup); diff --git a/drivers/staging/media/parport/pms.c b/drivers/staging/media/parport/pms.c new file mode 100644 index 000000000000..e6b497528cea --- /dev/null +++ b/drivers/staging/media/parport/pms.c @@ -0,0 +1,1156 @@ +/* + * Media Vision Pro Movie Studio + * or + * "all you need is an I2C bus some RAM and a prayer" + * + * This draws heavily on code + * + * (c) Wolfgang Koehler, wolf@first.gmd.de, Dec. 1994 + * Kiefernring 15 + * 14478 Potsdam, Germany + * + * Most of this code is directly derived from his userspace driver. + * His driver works so send any reports to alan@lxorguk.ukuu.org.uk + * unless the userspace driver also doesn't work for you... + * + * Changes: + * 25-11-2009 Hans Verkuil <hverkuil@xs4all.nl> + * - converted to version 2 of the V4L API. + * 08/07/2003 Daniele Bellucci <bellucda@tiscali.it> + * - pms_capture: report back -EFAULT + */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/fs.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/slab.h> +#include <linux/ioport.h> +#include <linux/init.h> +#include <linux/mutex.h> +#include <linux/uaccess.h> +#include <linux/isa.h> +#include <asm/io.h> + +#include <linux/videodev2.h> +#include <media/v4l2-common.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-event.h> +#include <media/v4l2-device.h> + +MODULE_LICENSE("GPL"); +MODULE_VERSION("0.0.5"); + +#define MOTOROLA 1 +#define PHILIPS2 2 /* SAA7191 */ +#define PHILIPS1 3 +#define MVVMEMORYWIDTH 0x40 /* 512 bytes */ + +struct i2c_info { + u8 slave; + u8 sub; + u8 data; + u8 hits; +}; + +struct pms { + struct v4l2_device v4l2_dev; + struct video_device vdev; + struct v4l2_ctrl_handler hdl; + int height; + int width; + int depth; + int input; + struct mutex lock; + int i2c_count; + struct i2c_info i2cinfo[64]; + + int decoder; + int standard; /* 0 - auto 1 - ntsc 2 - pal 3 - secam */ + v4l2_std_id std; + int io; + int data; + void __iomem *mem; +}; + +/* + * I/O ports and Shared Memory + */ + +static int io_port = 0x250; +module_param(io_port, int, 0); + +static int mem_base = 0xc8000; +module_param(mem_base, int, 0); + +static int video_nr = -1; +module_param(video_nr, int, 0); + + +static inline void mvv_write(struct pms *dev, u8 index, u8 value) +{ + outw(index | (value << 8), dev->io); +} + +static inline u8 mvv_read(struct pms *dev, u8 index) +{ + outb(index, dev->io); + return inb(dev->data); +} + +static int pms_i2c_stat(struct pms *dev, u8 slave) +{ + int counter = 0; + int i; + + outb(0x28, dev->io); + + while ((inb(dev->data) & 0x01) == 0) + if (counter++ == 256) + break; + + while ((inb(dev->data) & 0x01) != 0) + if (counter++ == 256) + break; + + outb(slave, dev->io); + + counter = 0; + while ((inb(dev->data) & 0x01) == 0) + if (counter++ == 256) + break; + + while ((inb(dev->data) & 0x01) != 0) + if (counter++ == 256) + break; + + for (i = 0; i < 12; i++) { + char st = inb(dev->data); + + if ((st & 2) != 0) + return -1; + if ((st & 1) == 0) + break; + } + outb(0x29, dev->io); + return inb(dev->data); +} + +static int pms_i2c_write(struct pms *dev, u16 slave, u16 sub, u16 data) +{ + int skip = 0; + int count; + int i; + + for (i = 0; i < dev->i2c_count; i++) { + if ((dev->i2cinfo[i].slave == slave) && + (dev->i2cinfo[i].sub == sub)) { + if (dev->i2cinfo[i].data == data) + skip = 1; + dev->i2cinfo[i].data = data; + i = dev->i2c_count + 1; + } + } + + if (i == dev->i2c_count && dev->i2c_count < 64) { + dev->i2cinfo[dev->i2c_count].slave = slave; + dev->i2cinfo[dev->i2c_count].sub = sub; + dev->i2cinfo[dev->i2c_count].data = data; + dev->i2c_count++; + } + + if (skip) + return 0; + + mvv_write(dev, 0x29, sub); + mvv_write(dev, 0x2A, data); + mvv_write(dev, 0x28, slave); + + outb(0x28, dev->io); + + count = 0; + while ((inb(dev->data) & 1) == 0) + if (count > 255) + break; + while ((inb(dev->data) & 1) != 0) + if (count > 255) + break; + + count = inb(dev->data); + + if (count & 2) + return -1; + return count; +} + +static int pms_i2c_read(struct pms *dev, int slave, int sub) +{ + int i; + + for (i = 0; i < dev->i2c_count; i++) { + if (dev->i2cinfo[i].slave == slave && dev->i2cinfo[i].sub == sub) + return dev->i2cinfo[i].data; + } + return 0; +} + + +static void pms_i2c_andor(struct pms *dev, int slave, int sub, int and, int or) +{ + u8 tmp; + + tmp = pms_i2c_read(dev, slave, sub); + tmp = (tmp & and) | or; + pms_i2c_write(dev, slave, sub, tmp); +} + +/* + * Control functions + */ + + +static void pms_videosource(struct pms *dev, short source) +{ + switch (dev->decoder) { + case MOTOROLA: + break; + case PHILIPS2: + pms_i2c_andor(dev, 0x8a, 0x06, 0x7f, source ? 0x80 : 0); + break; + case PHILIPS1: + break; + } + mvv_write(dev, 0x2E, 0x31); + /* Was: mvv_write(dev, 0x2E, source ? 0x31 : 0x30); + But could not make this work correctly. Only Composite input + worked for me. */ +} + +static void pms_hue(struct pms *dev, short hue) +{ + switch (dev->decoder) { + case MOTOROLA: + pms_i2c_write(dev, 0x8a, 0x00, hue); + break; + case PHILIPS2: + pms_i2c_write(dev, 0x8a, 0x07, hue); + break; + case PHILIPS1: + pms_i2c_write(dev, 0x42, 0x07, hue); + break; + } +} + +static void pms_saturation(struct pms *dev, short sat) +{ + switch (dev->decoder) { + case MOTOROLA: + pms_i2c_write(dev, 0x8a, 0x00, sat); + break; + case PHILIPS1: + pms_i2c_write(dev, 0x42, 0x12, sat); + break; + } +} + + +static void pms_contrast(struct pms *dev, short contrast) +{ + switch (dev->decoder) { + case MOTOROLA: + pms_i2c_write(dev, 0x8a, 0x00, contrast); + break; + case PHILIPS1: + pms_i2c_write(dev, 0x42, 0x13, contrast); + break; + } +} + +static void pms_brightness(struct pms *dev, short brightness) +{ + switch (dev->decoder) { + case MOTOROLA: + pms_i2c_write(dev, 0x8a, 0x00, brightness); + pms_i2c_write(dev, 0x8a, 0x00, brightness); + pms_i2c_write(dev, 0x8a, 0x00, brightness); + break; + case PHILIPS1: + pms_i2c_write(dev, 0x42, 0x19, brightness); + break; + } +} + + +static void pms_format(struct pms *dev, short format) +{ + int target; + + dev->standard = format; + + if (dev->decoder == PHILIPS1) + target = 0x42; + else if (dev->decoder == PHILIPS2) + target = 0x8a; + else + return; + + switch (format) { + case 0: /* Auto */ + pms_i2c_andor(dev, target, 0x0d, 0xfe, 0x00); + pms_i2c_andor(dev, target, 0x0f, 0x3f, 0x80); + break; + case 1: /* NTSC */ + pms_i2c_andor(dev, target, 0x0d, 0xfe, 0x00); + pms_i2c_andor(dev, target, 0x0f, 0x3f, 0x40); + break; + case 2: /* PAL */ + pms_i2c_andor(dev, target, 0x0d, 0xfe, 0x00); + pms_i2c_andor(dev, target, 0x0f, 0x3f, 0x00); + break; + case 3: /* SECAM */ + pms_i2c_andor(dev, target, 0x0d, 0xfe, 0x01); + pms_i2c_andor(dev, target, 0x0f, 0x3f, 0x00); + break; + } +} + +#ifdef FOR_FUTURE_EXPANSION + +/* + * These features of the PMS card are not currently exposes. They + * could become a private v4l ioctl for PMSCONFIG or somesuch if + * people need it. We also don't yet use the PMS interrupt. + */ + +static void pms_hstart(struct pms *dev, short start) +{ + switch (dev->decoder) { + case PHILIPS1: + pms_i2c_write(dev, 0x8a, 0x05, start); + pms_i2c_write(dev, 0x8a, 0x18, start); + break; + case PHILIPS2: + pms_i2c_write(dev, 0x42, 0x05, start); + pms_i2c_write(dev, 0x42, 0x18, start); + break; + } +} + +/* + * Bandpass filters + */ + +static void pms_bandpass(struct pms *dev, short pass) +{ + if (dev->decoder == PHILIPS2) + pms_i2c_andor(dev, 0x8a, 0x06, 0xcf, (pass & 0x03) << 4); + else if (dev->decoder == PHILIPS1) + pms_i2c_andor(dev, 0x42, 0x06, 0xcf, (pass & 0x03) << 4); +} + +static void pms_antisnow(struct pms *dev, short snow) +{ + if (dev->decoder == PHILIPS2) + pms_i2c_andor(dev, 0x8a, 0x06, 0xf3, (snow & 0x03) << 2); + else if (dev->decoder == PHILIPS1) + pms_i2c_andor(dev, 0x42, 0x06, 0xf3, (snow & 0x03) << 2); +} + +static void pms_sharpness(struct pms *dev, short sharp) +{ + if (dev->decoder == PHILIPS2) + pms_i2c_andor(dev, 0x8a, 0x06, 0xfc, sharp & 0x03); + else if (dev->decoder == PHILIPS1) + pms_i2c_andor(dev, 0x42, 0x06, 0xfc, sharp & 0x03); +} + +static void pms_chromaagc(struct pms *dev, short agc) +{ + if (dev->decoder == PHILIPS2) + pms_i2c_andor(dev, 0x8a, 0x0c, 0x9f, (agc & 0x03) << 5); + else if (dev->decoder == PHILIPS1) + pms_i2c_andor(dev, 0x42, 0x0c, 0x9f, (agc & 0x03) << 5); +} + +static void pms_vertnoise(struct pms *dev, short noise) +{ + if (dev->decoder == PHILIPS2) + pms_i2c_andor(dev, 0x8a, 0x10, 0xfc, noise & 3); + else if (dev->decoder == PHILIPS1) + pms_i2c_andor(dev, 0x42, 0x10, 0xfc, noise & 3); +} + +static void pms_forcecolour(struct pms *dev, short colour) +{ + if (dev->decoder == PHILIPS2) + pms_i2c_andor(dev, 0x8a, 0x0c, 0x7f, (colour & 1) << 7); + else if (dev->decoder == PHILIPS1) + pms_i2c_andor(dev, 0x42, 0x0c, 0x7, (colour & 1) << 7); +} + +static void pms_antigamma(struct pms *dev, short gamma) +{ + if (dev->decoder == PHILIPS2) + pms_i2c_andor(dev, 0xb8, 0x00, 0x7f, (gamma & 1) << 7); + else if (dev->decoder == PHILIPS1) + pms_i2c_andor(dev, 0x42, 0x20, 0x7, (gamma & 1) << 7); +} + +static void pms_prefilter(struct pms *dev, short filter) +{ + if (dev->decoder == PHILIPS2) + pms_i2c_andor(dev, 0x8a, 0x06, 0xbf, (filter & 1) << 6); + else if (dev->decoder == PHILIPS1) + pms_i2c_andor(dev, 0x42, 0x06, 0xbf, (filter & 1) << 6); +} + +static void pms_hfilter(struct pms *dev, short filter) +{ + if (dev->decoder == PHILIPS2) + pms_i2c_andor(dev, 0xb8, 0x04, 0x1f, (filter & 7) << 5); + else if (dev->decoder == PHILIPS1) + pms_i2c_andor(dev, 0x42, 0x24, 0x1f, (filter & 7) << 5); +} + +static void pms_vfilter(struct pms *dev, short filter) +{ + if (dev->decoder == PHILIPS2) + pms_i2c_andor(dev, 0xb8, 0x08, 0x9f, (filter & 3) << 5); + else if (dev->decoder == PHILIPS1) + pms_i2c_andor(dev, 0x42, 0x28, 0x9f, (filter & 3) << 5); +} + +static void pms_killcolour(struct pms *dev, short colour) +{ + if (dev->decoder == PHILIPS2) { + pms_i2c_andor(dev, 0x8a, 0x08, 0x07, (colour & 0x1f) << 3); + pms_i2c_andor(dev, 0x8a, 0x09, 0x07, (colour & 0x1f) << 3); + } else if (dev->decoder == PHILIPS1) { + pms_i2c_andor(dev, 0x42, 0x08, 0x07, (colour & 0x1f) << 3); + pms_i2c_andor(dev, 0x42, 0x09, 0x07, (colour & 0x1f) << 3); + } +} + +static void pms_chromagain(struct pms *dev, short chroma) +{ + if (dev->decoder == PHILIPS2) + pms_i2c_write(dev, 0x8a, 0x11, chroma); + else if (dev->decoder == PHILIPS1) + pms_i2c_write(dev, 0x42, 0x11, chroma); +} + + +static void pms_spacialcompl(struct pms *dev, short data) +{ + mvv_write(dev, 0x3b, data); +} + +static void pms_spacialcomph(struct pms *dev, short data) +{ + mvv_write(dev, 0x3a, data); +} + +static void pms_vstart(struct pms *dev, short start) +{ + mvv_write(dev, 0x16, start); + mvv_write(dev, 0x17, (start >> 8) & 0x01); +} + +#endif + +static void pms_secamcross(struct pms *dev, short cross) +{ + if (dev->decoder == PHILIPS2) + pms_i2c_andor(dev, 0x8a, 0x0f, 0xdf, (cross & 1) << 5); + else if (dev->decoder == PHILIPS1) + pms_i2c_andor(dev, 0x42, 0x0f, 0xdf, (cross & 1) << 5); +} + + +static void pms_swsense(struct pms *dev, short sense) +{ + if (dev->decoder == PHILIPS2) { + pms_i2c_write(dev, 0x8a, 0x0a, sense); + pms_i2c_write(dev, 0x8a, 0x0b, sense); + } else if (dev->decoder == PHILIPS1) { + pms_i2c_write(dev, 0x42, 0x0a, sense); + pms_i2c_write(dev, 0x42, 0x0b, sense); + } +} + + +static void pms_framerate(struct pms *dev, short frr) +{ + int fps = (dev->std & V4L2_STD_525_60) ? 30 : 25; + + if (frr == 0) + return; + fps = fps/frr; + mvv_write(dev, 0x14, 0x80 | fps); + mvv_write(dev, 0x15, 1); +} + +static void pms_vert(struct pms *dev, u8 deciden, u8 decinum) +{ + mvv_write(dev, 0x1c, deciden); /* Denominator */ + mvv_write(dev, 0x1d, decinum); /* Numerator */ +} + +/* + * Turn 16bit ratios into best small ratio the chipset can grok + */ + +static void pms_vertdeci(struct pms *dev, unsigned short decinum, unsigned short deciden) +{ + /* Knock it down by / 5 once */ + if (decinum % 5 == 0) { + deciden /= 5; + decinum /= 5; + } + /* + * 3's + */ + while (decinum % 3 == 0 && deciden % 3 == 0) { + deciden /= 3; + decinum /= 3; + } + /* + * 2's + */ + while (decinum % 2 == 0 && deciden % 2 == 0) { + decinum /= 2; + deciden /= 2; + } + /* + * Fudgyify + */ + while (deciden > 32) { + deciden /= 2; + decinum = (decinum + 1) / 2; + } + if (deciden == 32) + deciden--; + pms_vert(dev, deciden, decinum); +} + +static void pms_horzdeci(struct pms *dev, short decinum, short deciden) +{ + if (decinum <= 512) { + if (decinum % 5 == 0) { + decinum /= 5; + deciden /= 5; + } + } else { + decinum = 512; + deciden = 640; /* 768 would be ideal */ + } + + while (((decinum | deciden) & 1) == 0) { + decinum >>= 1; + deciden >>= 1; + } + while (deciden > 32) { + deciden >>= 1; + decinum = (decinum + 1) >> 1; + } + if (deciden == 32) + deciden--; + + mvv_write(dev, 0x24, 0x80 | deciden); + mvv_write(dev, 0x25, decinum); +} + +static void pms_resolution(struct pms *dev, short width, short height) +{ + int fg_height; + + fg_height = height; + if (fg_height > 280) + fg_height = 280; + + mvv_write(dev, 0x18, fg_height); + mvv_write(dev, 0x19, fg_height >> 8); + + if (dev->std & V4L2_STD_525_60) { + mvv_write(dev, 0x1a, 0xfc); + mvv_write(dev, 0x1b, 0x00); + if (height > fg_height) + pms_vertdeci(dev, 240, 240); + else + pms_vertdeci(dev, fg_height, 240); + } else { + mvv_write(dev, 0x1a, 0x1a); + mvv_write(dev, 0x1b, 0x01); + if (fg_height > 256) + pms_vertdeci(dev, 270, 270); + else + pms_vertdeci(dev, fg_height, 270); + } + mvv_write(dev, 0x12, 0); + mvv_write(dev, 0x13, MVVMEMORYWIDTH); + mvv_write(dev, 0x42, 0x00); + mvv_write(dev, 0x43, 0x00); + mvv_write(dev, 0x44, MVVMEMORYWIDTH); + + mvv_write(dev, 0x22, width + 8); + mvv_write(dev, 0x23, (width + 8) >> 8); + + if (dev->std & V4L2_STD_525_60) + pms_horzdeci(dev, width, 640); + else + pms_horzdeci(dev, width + 8, 768); + + mvv_write(dev, 0x30, mvv_read(dev, 0x30) & 0xfe); + mvv_write(dev, 0x08, mvv_read(dev, 0x08) | 0x01); + mvv_write(dev, 0x01, mvv_read(dev, 0x01) & 0xfd); + mvv_write(dev, 0x32, 0x00); + mvv_write(dev, 0x33, MVVMEMORYWIDTH); +} + + +/* + * Set Input + */ + +static void pms_vcrinput(struct pms *dev, short input) +{ + if (dev->decoder == PHILIPS2) + pms_i2c_andor(dev, 0x8a, 0x0d, 0x7f, (input & 1) << 7); + else if (dev->decoder == PHILIPS1) + pms_i2c_andor(dev, 0x42, 0x0d, 0x7f, (input & 1) << 7); +} + + +static int pms_capture(struct pms *dev, char __user *buf, int rgb555, int count) +{ + int y; + int dw = 2 * dev->width; + char *tmp; /* using a temp buffer is faster than direct */ + int cnt = 0; + int len = 0; + unsigned char r8 = 0x5; /* value for reg8 */ + + tmp = kmalloc(dw + 32, GFP_KERNEL); + if (!tmp) + return 0; + + if (rgb555) + r8 |= 0x20; /* else use untranslated rgb = 565 */ + mvv_write(dev, 0x08, r8); /* capture rgb555/565, init DRAM, PC enable */ + +/* printf("%d %d %d %d %d %x %x\n",width,height,voff,nom,den,mvv_buf); */ + + for (y = 0; y < dev->height; y++) { + writeb(0, dev->mem); /* synchronisiert neue Zeile */ + + /* + * This is in truth a fifo, be very careful as if you + * forgot this odd things will occur 8) + */ + + memcpy_fromio(tmp, dev->mem, dw + 32); /* discard 16 word */ + cnt -= dev->height; + while (cnt <= 0) { + /* + * Don't copy too far + */ + int dt = dw; + if (dt + len > count) + dt = count - len; + cnt += dev->height; + if (copy_to_user(buf, tmp + 32, dt)) + return len ? len : -EFAULT; + buf += dt; + len += dt; + } + } + kfree(tmp); + return len; +} + + +/* + * Video4linux interfacing + */ + +static int pms_querycap(struct file *file, void *priv, + struct v4l2_capability *vcap) +{ + struct pms *dev = video_drvdata(file); + + strlcpy(vcap->driver, dev->v4l2_dev.name, sizeof(vcap->driver)); + strlcpy(vcap->card, "Mediavision PMS", sizeof(vcap->card)); + snprintf(vcap->bus_info, sizeof(vcap->bus_info), + "ISA:%s", dev->v4l2_dev.name); + vcap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE; + vcap->capabilities = vcap->device_caps | V4L2_CAP_DEVICE_CAPS; + return 0; +} + +static int pms_enum_input(struct file *file, void *fh, struct v4l2_input *vin) +{ + static const char *inputs[4] = { + "Composite", + "S-Video", + "Composite (VCR)", + "S-Video (VCR)" + }; + + if (vin->index > 3) + return -EINVAL; + strlcpy(vin->name, inputs[vin->index], sizeof(vin->name)); + vin->type = V4L2_INPUT_TYPE_CAMERA; + vin->audioset = 0; + vin->tuner = 0; + vin->std = V4L2_STD_ALL; + vin->status = 0; + return 0; +} + +static int pms_g_input(struct file *file, void *fh, unsigned int *inp) +{ + struct pms *dev = video_drvdata(file); + + *inp = dev->input; + return 0; +} + +static int pms_s_input(struct file *file, void *fh, unsigned int inp) +{ + struct pms *dev = video_drvdata(file); + + if (inp > 3) + return -EINVAL; + + dev->input = inp; + pms_videosource(dev, inp & 1); + pms_vcrinput(dev, inp >> 1); + return 0; +} + +static int pms_g_std(struct file *file, void *fh, v4l2_std_id *std) +{ + struct pms *dev = video_drvdata(file); + + *std = dev->std; + return 0; +} + +static int pms_s_std(struct file *file, void *fh, v4l2_std_id std) +{ + struct pms *dev = video_drvdata(file); + int ret = 0; + + dev->std = std; + if (dev->std & V4L2_STD_NTSC) { + pms_framerate(dev, 30); + pms_secamcross(dev, 0); + pms_format(dev, 1); + } else if (dev->std & V4L2_STD_PAL) { + pms_framerate(dev, 25); + pms_secamcross(dev, 0); + pms_format(dev, 2); + } else if (dev->std & V4L2_STD_SECAM) { + pms_framerate(dev, 25); + pms_secamcross(dev, 1); + pms_format(dev, 2); + } else { + ret = -EINVAL; + } + /* + switch (v->mode) { + case VIDEO_MODE_AUTO: + pms_framerate(dev, 25); + pms_secamcross(dev, 0); + pms_format(dev, 0); + break; + }*/ + return ret; +} + +static int pms_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct pms *dev = container_of(ctrl->handler, struct pms, hdl); + int ret = 0; + + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + pms_brightness(dev, ctrl->val); + break; + case V4L2_CID_CONTRAST: + pms_contrast(dev, ctrl->val); + break; + case V4L2_CID_SATURATION: + pms_saturation(dev, ctrl->val); + break; + case V4L2_CID_HUE: + pms_hue(dev, ctrl->val); + break; + default: + ret = -EINVAL; + break; + } + return ret; +} + +static int pms_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct pms *dev = video_drvdata(file); + struct v4l2_pix_format *pix = &fmt->fmt.pix; + + pix->width = dev->width; + pix->height = dev->height; + pix->pixelformat = dev->width == 15 ? + V4L2_PIX_FMT_RGB555 : V4L2_PIX_FMT_RGB565; + pix->field = V4L2_FIELD_NONE; + pix->bytesperline = 2 * dev->width; + pix->sizeimage = 2 * dev->width * dev->height; + /* Just a guess */ + pix->colorspace = V4L2_COLORSPACE_SRGB; + return 0; +} + +static int pms_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct v4l2_pix_format *pix = &fmt->fmt.pix; + + if (pix->height < 16 || pix->height > 480) + return -EINVAL; + if (pix->width < 16 || pix->width > 640) + return -EINVAL; + if (pix->pixelformat != V4L2_PIX_FMT_RGB555 && + pix->pixelformat != V4L2_PIX_FMT_RGB565) + return -EINVAL; + pix->field = V4L2_FIELD_NONE; + pix->bytesperline = 2 * pix->width; + pix->sizeimage = 2 * pix->width * pix->height; + /* Just a guess */ + pix->colorspace = V4L2_COLORSPACE_SRGB; + return 0; +} + +static int pms_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct pms *dev = video_drvdata(file); + struct v4l2_pix_format *pix = &fmt->fmt.pix; + int ret = pms_try_fmt_vid_cap(file, fh, fmt); + + if (ret) + return ret; + dev->width = pix->width; + dev->height = pix->height; + dev->depth = (pix->pixelformat == V4L2_PIX_FMT_RGB555) ? 15 : 16; + pms_resolution(dev, dev->width, dev->height); + /* Ok we figured out what to use from our wide choice */ + return 0; +} + +static int pms_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *fmt) +{ + static struct v4l2_fmtdesc formats[] = { + { 0, 0, 0, + "RGB 5:5:5", V4L2_PIX_FMT_RGB555, + { 0, 0, 0, 0 } + }, + { 1, 0, 0, + "RGB 5:6:5", V4L2_PIX_FMT_RGB565, + { 0, 0, 0, 0 } + }, + }; + enum v4l2_buf_type type = fmt->type; + + if (fmt->index > 1) + return -EINVAL; + + *fmt = formats[fmt->index]; + fmt->type = type; + return 0; +} + +static ssize_t pms_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + struct pms *dev = video_drvdata(file); + int len; + + len = pms_capture(dev, buf, (dev->depth == 15), count); + return len; +} + +static unsigned int pms_poll(struct file *file, struct poll_table_struct *wait) +{ + struct v4l2_fh *fh = file->private_data; + unsigned int res = POLLIN | POLLRDNORM; + + if (v4l2_event_pending(fh)) + res |= POLLPRI; + poll_wait(file, &fh->wait, wait); + return res; +} + +static const struct v4l2_file_operations pms_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = v4l2_fh_release, + .poll = pms_poll, + .unlocked_ioctl = video_ioctl2, + .read = pms_read, +}; + +static const struct v4l2_ioctl_ops pms_ioctl_ops = { + .vidioc_querycap = pms_querycap, + .vidioc_g_input = pms_g_input, + .vidioc_s_input = pms_s_input, + .vidioc_enum_input = pms_enum_input, + .vidioc_g_std = pms_g_std, + .vidioc_s_std = pms_s_std, + .vidioc_enum_fmt_vid_cap = pms_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = pms_g_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = pms_s_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = pms_try_fmt_vid_cap, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +/* + * Probe for and initialise the Mediavision PMS + */ + +static int init_mediavision(struct pms *dev) +{ + int idec, decst; + int i; + static const unsigned char i2c_defs[] = { + 0x4c, 0x30, 0x00, 0xe8, + 0xb6, 0xe2, 0x00, 0x00, + 0xff, 0xff, 0x00, 0x00, + 0x00, 0x00, 0x78, 0x98, + 0x00, 0x00, 0x00, 0x00, + 0x34, 0x0a, 0xf4, 0xce, + 0xe4 + }; + + dev->mem = ioremap(mem_base, 0x800); + if (!dev->mem) + return -ENOMEM; + + if (!request_region(0x9a01, 1, "Mediavision PMS config")) { + printk(KERN_WARNING "mediavision: unable to detect: 0x9a01 in use.\n"); + iounmap(dev->mem); + return -EBUSY; + } + if (!request_region(dev->io, 3, "Mediavision PMS")) { + printk(KERN_WARNING "mediavision: I/O port %d in use.\n", dev->io); + release_region(0x9a01, 1); + iounmap(dev->mem); + return -EBUSY; + } + outb(0xb8, 0x9a01); /* Unlock */ + outb(dev->io >> 4, 0x9a01); /* Set IO port */ + + + decst = pms_i2c_stat(dev, 0x43); + + if (decst != -1) + idec = 2; + else if (pms_i2c_stat(dev, 0xb9) != -1) + idec = 3; + else if (pms_i2c_stat(dev, 0x8b) != -1) + idec = 1; + else + idec = 0; + + printk(KERN_INFO "PMS type is %d\n", idec); + if (idec == 0) { + release_region(dev->io, 3); + release_region(0x9a01, 1); + iounmap(dev->mem); + return -ENODEV; + } + + /* + * Ok we have a PMS of some sort + */ + + mvv_write(dev, 0x04, mem_base >> 12); /* Set the memory area */ + + /* Ok now load the defaults */ + + for (i = 0; i < 0x19; i++) { + if (i2c_defs[i] == 0xff) + pms_i2c_andor(dev, 0x8a, i, 0x07, 0x00); + else + pms_i2c_write(dev, 0x8a, i, i2c_defs[i]); + } + + pms_i2c_write(dev, 0xb8, 0x00, 0x12); + pms_i2c_write(dev, 0xb8, 0x04, 0x00); + pms_i2c_write(dev, 0xb8, 0x07, 0x00); + pms_i2c_write(dev, 0xb8, 0x08, 0x00); + pms_i2c_write(dev, 0xb8, 0x09, 0xff); + pms_i2c_write(dev, 0xb8, 0x0a, 0x00); + pms_i2c_write(dev, 0xb8, 0x0b, 0x10); + pms_i2c_write(dev, 0xb8, 0x10, 0x03); + + mvv_write(dev, 0x01, 0x00); + mvv_write(dev, 0x05, 0xa0); + mvv_write(dev, 0x08, 0x25); + mvv_write(dev, 0x09, 0x00); + mvv_write(dev, 0x0a, 0x20 | MVVMEMORYWIDTH); + + mvv_write(dev, 0x10, 0x02); + mvv_write(dev, 0x1e, 0x0c); + mvv_write(dev, 0x1f, 0x03); + mvv_write(dev, 0x26, 0x06); + + mvv_write(dev, 0x2b, 0x00); + mvv_write(dev, 0x2c, 0x20); + mvv_write(dev, 0x2d, 0x00); + mvv_write(dev, 0x2f, 0x70); + mvv_write(dev, 0x32, 0x00); + mvv_write(dev, 0x33, MVVMEMORYWIDTH); + mvv_write(dev, 0x34, 0x00); + mvv_write(dev, 0x35, 0x00); + mvv_write(dev, 0x3a, 0x80); + mvv_write(dev, 0x3b, 0x10); + mvv_write(dev, 0x20, 0x00); + mvv_write(dev, 0x21, 0x00); + mvv_write(dev, 0x30, 0x22); + return 0; +} + +/* + * Initialization and module stuff + */ + +#ifndef MODULE +static int enable; +module_param(enable, int, 0); +#endif + +static const struct v4l2_ctrl_ops pms_ctrl_ops = { + .s_ctrl = pms_s_ctrl, +}; + +static int pms_probe(struct device *pdev, unsigned int card) +{ + struct pms *dev; + struct v4l2_device *v4l2_dev; + struct v4l2_ctrl_handler *hdl; + int res; + +#ifndef MODULE + if (!enable) { + pr_err("PMS: not enabled, use pms.enable=1 to probe\n"); + return -ENODEV; + } +#endif + + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (dev == NULL) + return -ENOMEM; + + dev->decoder = PHILIPS2; + dev->io = io_port; + dev->data = io_port + 1; + v4l2_dev = &dev->v4l2_dev; + hdl = &dev->hdl; + + res = v4l2_device_register(pdev, v4l2_dev); + if (res < 0) { + v4l2_err(v4l2_dev, "Could not register v4l2_device\n"); + goto free_dev; + } + v4l2_info(v4l2_dev, "Mediavision Pro Movie Studio driver 0.05\n"); + + res = init_mediavision(dev); + if (res) { + v4l2_err(v4l2_dev, "Board not found.\n"); + goto free_io; + } + + v4l2_ctrl_handler_init(hdl, 4); + v4l2_ctrl_new_std(hdl, &pms_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 139); + v4l2_ctrl_new_std(hdl, &pms_ctrl_ops, + V4L2_CID_CONTRAST, 0, 255, 1, 70); + v4l2_ctrl_new_std(hdl, &pms_ctrl_ops, + V4L2_CID_SATURATION, 0, 255, 1, 64); + v4l2_ctrl_new_std(hdl, &pms_ctrl_ops, + V4L2_CID_HUE, 0, 255, 1, 0); + if (hdl->error) { + res = hdl->error; + goto free_hdl; + } + + mutex_init(&dev->lock); + strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name)); + dev->vdev.v4l2_dev = v4l2_dev; + dev->vdev.ctrl_handler = hdl; + dev->vdev.fops = &pms_fops; + dev->vdev.ioctl_ops = &pms_ioctl_ops; + dev->vdev.release = video_device_release_empty; + dev->vdev.lock = &dev->lock; + dev->vdev.tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM; + video_set_drvdata(&dev->vdev, dev); + dev->std = V4L2_STD_NTSC_M; + dev->height = 240; + dev->width = 320; + dev->depth = 16; + pms_swsense(dev, 75); + pms_resolution(dev, 320, 240); + pms_videosource(dev, 0); + pms_vcrinput(dev, 0); + v4l2_ctrl_handler_setup(hdl); + res = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, video_nr); + if (res >= 0) + return 0; + +free_hdl: + v4l2_ctrl_handler_free(hdl); + v4l2_device_unregister(&dev->v4l2_dev); +free_io: + release_region(dev->io, 3); + release_region(0x9a01, 1); + iounmap(dev->mem); +free_dev: + kfree(dev); + return res; +} + +static int pms_remove(struct device *pdev, unsigned int card) +{ + struct pms *dev = dev_get_drvdata(pdev); + + video_unregister_device(&dev->vdev); + v4l2_ctrl_handler_free(&dev->hdl); + release_region(dev->io, 3); + release_region(0x9a01, 1); + iounmap(dev->mem); + return 0; +} + +static struct isa_driver pms_driver = { + .probe = pms_probe, + .remove = pms_remove, + .driver = { + .name = "pms", + }, +}; + +static int __init pms_init(void) +{ + return isa_register_driver(&pms_driver, 1); +} + +static void __exit pms_exit(void) +{ + isa_unregister_driver(&pms_driver); +} + +module_init(pms_init); +module_exit(pms_exit); diff --git a/drivers/staging/media/parport/w9966.c b/drivers/staging/media/parport/w9966.c new file mode 100644 index 000000000000..f7502f3a6a3c --- /dev/null +++ b/drivers/staging/media/parport/w9966.c @@ -0,0 +1,980 @@ +/* + Winbond w9966cf Webcam parport driver. + + Version 0.33 + + Copyright (C) 2001 Jakob Kemi <jakob.kemi@post.utfors.se> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ +/* + Supported devices: + *Lifeview FlyCam Supra (using the Philips saa7111a chip) + + Does any other model using the w9966 interface chip exist ? + + Todo: + + *Add a working EPP mode, since DMA ECP read isn't implemented + in the parport drivers. (That's why it's so sloow) + + *Add support for other ccd-control chips than the saa7111 + please send me feedback on what kind of chips you have. + + *Add proper probing. I don't know what's wrong with the IEEE1284 + parport drivers but (IEEE1284_MODE_NIBBLE|IEEE1284_DEVICE_ID) + and nibble read seems to be broken for some peripherals. + + *Add probing for onboard SRAM, port directions etc. (if possible) + + *Add support for the hardware compressed modes (maybe using v4l2) + + *Fix better support for the capture window (no skewed images, v4l + interface to capt. window) + + *Probably some bugs that I don't know of + + Please support me by sending feedback! + + Changes: + + Alan Cox: Removed RGB mode for kernel merge, added THIS_MODULE + and owner support for newer module locks +*/ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/videodev2.h> +#include <linux/slab.h> +#include <media/v4l2-common.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-device.h> +#include <media/v4l2-fh.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-event.h> +#include <linux/parport.h> + +/*#define DEBUG*/ /* Undef me for production */ + +#ifdef DEBUG +#define DPRINTF(x, a...) printk(KERN_DEBUG "W9966: %s(): "x, __func__ , ##a) +#else +#define DPRINTF(x...) +#endif + +/* + * Defines, simple typedefs etc. + */ + +#define W9966_DRIVERNAME "W9966CF Webcam" +#define W9966_MAXCAMS 4 /* Maximum number of cameras */ +#define W9966_RBUFFER 2048 /* Read buffer (must be an even number) */ +#define W9966_SRAMSIZE 131072 /* 128kb */ +#define W9966_SRAMID 0x02 /* check w9966cf.pdf */ + +/* Empirically determined window limits */ +#define W9966_WND_MIN_X 16 +#define W9966_WND_MIN_Y 14 +#define W9966_WND_MAX_X 705 +#define W9966_WND_MAX_Y 253 +#define W9966_WND_MAX_W (W9966_WND_MAX_X - W9966_WND_MIN_X) +#define W9966_WND_MAX_H (W9966_WND_MAX_Y - W9966_WND_MIN_Y) + +/* Keep track of our current state */ +#define W9966_STATE_PDEV 0x01 +#define W9966_STATE_CLAIMED 0x02 +#define W9966_STATE_VDEV 0x04 + +#define W9966_I2C_W_ID 0x48 +#define W9966_I2C_R_ID 0x49 +#define W9966_I2C_R_DATA 0x08 +#define W9966_I2C_R_CLOCK 0x04 +#define W9966_I2C_W_DATA 0x02 +#define W9966_I2C_W_CLOCK 0x01 + +struct w9966 { + struct v4l2_device v4l2_dev; + struct v4l2_ctrl_handler hdl; + unsigned char dev_state; + unsigned char i2c_state; + unsigned short ppmode; + struct parport *pport; + struct pardevice *pdev; + struct video_device vdev; + unsigned short width; + unsigned short height; + unsigned char brightness; + signed char contrast; + signed char color; + signed char hue; + struct mutex lock; +}; + +/* + * Module specific properties + */ + +MODULE_AUTHOR("Jakob Kemi <jakob.kemi@post.utfors.se>"); +MODULE_DESCRIPTION("Winbond w9966cf WebCam driver (0.32)"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("0.33.1"); + +#ifdef MODULE +static char *pardev[] = {[0 ... W9966_MAXCAMS] = ""}; +#else +static char *pardev[] = {[0 ... W9966_MAXCAMS] = "aggressive"}; +#endif +module_param_array(pardev, charp, NULL, 0); +MODULE_PARM_DESC(pardev, "pardev: where to search for\n" + "\teach camera. 'aggressive' means brute-force search.\n" + "\tEg: >pardev=parport3,aggressive,parport2,parport1< would assign\n" + "\tcam 1 to parport3 and search every parport for cam 2 etc..."); + +static int parmode; +module_param(parmode, int, 0); +MODULE_PARM_DESC(parmode, "parmode: transfer mode (0=auto, 1=ecp, 2=epp"); + +static int video_nr = -1; +module_param(video_nr, int, 0); + +static struct w9966 w9966_cams[W9966_MAXCAMS]; + +/* + * Private function defines + */ + + +/* Set camera phase flags, so we know what to uninit when terminating */ +static inline void w9966_set_state(struct w9966 *cam, int mask, int val) +{ + cam->dev_state = (cam->dev_state & ~mask) ^ val; +} + +/* Get camera phase flags */ +static inline int w9966_get_state(struct w9966 *cam, int mask, int val) +{ + return ((cam->dev_state & mask) == val); +} + +/* Claim parport for ourself */ +static void w9966_pdev_claim(struct w9966 *cam) +{ + if (w9966_get_state(cam, W9966_STATE_CLAIMED, W9966_STATE_CLAIMED)) + return; + parport_claim_or_block(cam->pdev); + w9966_set_state(cam, W9966_STATE_CLAIMED, W9966_STATE_CLAIMED); +} + +/* Release parport for others to use */ +static void w9966_pdev_release(struct w9966 *cam) +{ + if (w9966_get_state(cam, W9966_STATE_CLAIMED, 0)) + return; + parport_release(cam->pdev); + w9966_set_state(cam, W9966_STATE_CLAIMED, 0); +} + +/* Read register from W9966 interface-chip + Expects a claimed pdev + -1 on error, else register data (byte) */ +static int w9966_read_reg(struct w9966 *cam, int reg) +{ + /* ECP, read, regtransfer, REG, REG, REG, REG, REG */ + const unsigned char addr = 0x80 | (reg & 0x1f); + unsigned char val; + + if (parport_negotiate(cam->pport, cam->ppmode | IEEE1284_ADDR) != 0) + return -1; + if (parport_write(cam->pport, &addr, 1) != 1) + return -1; + if (parport_negotiate(cam->pport, cam->ppmode | IEEE1284_DATA) != 0) + return -1; + if (parport_read(cam->pport, &val, 1) != 1) + return -1; + + return val; +} + +/* Write register to W9966 interface-chip + Expects a claimed pdev + -1 on error */ +static int w9966_write_reg(struct w9966 *cam, int reg, int data) +{ + /* ECP, write, regtransfer, REG, REG, REG, REG, REG */ + const unsigned char addr = 0xc0 | (reg & 0x1f); + const unsigned char val = data; + + if (parport_negotiate(cam->pport, cam->ppmode | IEEE1284_ADDR) != 0) + return -1; + if (parport_write(cam->pport, &addr, 1) != 1) + return -1; + if (parport_negotiate(cam->pport, cam->ppmode | IEEE1284_DATA) != 0) + return -1; + if (parport_write(cam->pport, &val, 1) != 1) + return -1; + + return 0; +} + +/* + * Ugly and primitive i2c protocol functions + */ + +/* Sets the data line on the i2c bus. + Expects a claimed pdev. */ +static void w9966_i2c_setsda(struct w9966 *cam, int state) +{ + if (state) + cam->i2c_state |= W9966_I2C_W_DATA; + else + cam->i2c_state &= ~W9966_I2C_W_DATA; + + w9966_write_reg(cam, 0x18, cam->i2c_state); + udelay(5); +} + +/* Get peripheral clock line + Expects a claimed pdev. */ +static int w9966_i2c_getscl(struct w9966 *cam) +{ + const unsigned char state = w9966_read_reg(cam, 0x18); + return ((state & W9966_I2C_R_CLOCK) > 0); +} + +/* Sets the clock line on the i2c bus. + Expects a claimed pdev. -1 on error */ +static int w9966_i2c_setscl(struct w9966 *cam, int state) +{ + unsigned long timeout; + + if (state) + cam->i2c_state |= W9966_I2C_W_CLOCK; + else + cam->i2c_state &= ~W9966_I2C_W_CLOCK; + + w9966_write_reg(cam, 0x18, cam->i2c_state); + udelay(5); + + /* we go to high, we also expect the peripheral to ack. */ + if (state) { + timeout = jiffies + 100; + while (!w9966_i2c_getscl(cam)) { + if (time_after(jiffies, timeout)) + return -1; + } + } + return 0; +} + +#if 0 +/* Get peripheral data line + Expects a claimed pdev. */ +static int w9966_i2c_getsda(struct w9966 *cam) +{ + const unsigned char state = w9966_read_reg(cam, 0x18); + return ((state & W9966_I2C_R_DATA) > 0); +} +#endif + +/* Write a byte with ack to the i2c bus. + Expects a claimed pdev. -1 on error */ +static int w9966_i2c_wbyte(struct w9966 *cam, int data) +{ + int i; + + for (i = 7; i >= 0; i--) { + w9966_i2c_setsda(cam, (data >> i) & 0x01); + + if (w9966_i2c_setscl(cam, 1) == -1) + return -1; + w9966_i2c_setscl(cam, 0); + } + + w9966_i2c_setsda(cam, 1); + + if (w9966_i2c_setscl(cam, 1) == -1) + return -1; + w9966_i2c_setscl(cam, 0); + + return 0; +} + +/* Read a data byte with ack from the i2c-bus + Expects a claimed pdev. -1 on error */ +#if 0 +static int w9966_i2c_rbyte(struct w9966 *cam) +{ + unsigned char data = 0x00; + int i; + + w9966_i2c_setsda(cam, 1); + + for (i = 0; i < 8; i++) { + if (w9966_i2c_setscl(cam, 1) == -1) + return -1; + data = data << 1; + if (w9966_i2c_getsda(cam)) + data |= 0x01; + + w9966_i2c_setscl(cam, 0); + } + return data; +} +#endif + +/* Read a register from the i2c device. + Expects claimed pdev. -1 on error */ +#if 0 +static int w9966_read_reg_i2c(struct w9966 *cam, int reg) +{ + int data; + + w9966_i2c_setsda(cam, 0); + w9966_i2c_setscl(cam, 0); + + if (w9966_i2c_wbyte(cam, W9966_I2C_W_ID) == -1 || + w9966_i2c_wbyte(cam, reg) == -1) + return -1; + + w9966_i2c_setsda(cam, 1); + if (w9966_i2c_setscl(cam, 1) == -1) + return -1; + w9966_i2c_setsda(cam, 0); + w9966_i2c_setscl(cam, 0); + + if (w9966_i2c_wbyte(cam, W9966_I2C_R_ID) == -1) + return -1; + data = w9966_i2c_rbyte(cam); + if (data == -1) + return -1; + + w9966_i2c_setsda(cam, 0); + + if (w9966_i2c_setscl(cam, 1) == -1) + return -1; + w9966_i2c_setsda(cam, 1); + + return data; +} +#endif + +/* Write a register to the i2c device. + Expects claimed pdev. -1 on error */ +static int w9966_write_reg_i2c(struct w9966 *cam, int reg, int data) +{ + w9966_i2c_setsda(cam, 0); + w9966_i2c_setscl(cam, 0); + + if (w9966_i2c_wbyte(cam, W9966_I2C_W_ID) == -1 || + w9966_i2c_wbyte(cam, reg) == -1 || + w9966_i2c_wbyte(cam, data) == -1) + return -1; + + w9966_i2c_setsda(cam, 0); + if (w9966_i2c_setscl(cam, 1) == -1) + return -1; + + w9966_i2c_setsda(cam, 1); + + return 0; +} + +/* Find a good length for capture window (used both for W and H) + A bit ugly but pretty functional. The capture length + have to match the downscale */ +static int w9966_findlen(int near, int size, int maxlen) +{ + int bestlen = size; + int besterr = abs(near - bestlen); + int len; + + for (len = size + 1; len < maxlen; len++) { + int err; + if (((64 * size) % len) != 0) + continue; + + err = abs(near - len); + + /* Only continue as long as we keep getting better values */ + if (err > besterr) + break; + + besterr = err; + bestlen = len; + } + + return bestlen; +} + +/* Modify capture window (if necessary) + and calculate downscaling + Return -1 on error */ +static int w9966_calcscale(int size, int min, int max, int *beg, int *end, unsigned char *factor) +{ + int maxlen = max - min; + int len = *end - *beg + 1; + int newlen = w9966_findlen(len, size, maxlen); + int err = newlen - len; + + /* Check for bad format */ + if (newlen > maxlen || newlen < size) + return -1; + + /* Set factor (6 bit fixed) */ + *factor = (64 * size) / newlen; + if (*factor == 64) + *factor = 0x00; /* downscale is disabled */ + else + *factor |= 0x80; /* set downscale-enable bit */ + + /* Modify old beginning and end */ + *beg -= err / 2; + *end += err - (err / 2); + + /* Move window if outside borders */ + if (*beg < min) { + *end += min - *beg; + *beg += min - *beg; + } + if (*end > max) { + *beg -= *end - max; + *end -= *end - max; + } + + return 0; +} + +/* Setup the cameras capture window etc. + Expects a claimed pdev + return -1 on error */ +static int w9966_setup(struct w9966 *cam, int x1, int y1, int x2, int y2, int w, int h) +{ + unsigned int i; + unsigned int enh_s, enh_e; + unsigned char scale_x, scale_y; + unsigned char regs[0x1c]; + unsigned char saa7111_regs[] = { + 0x21, 0x00, 0xd8, 0x23, 0x00, 0x80, 0x80, 0x00, + 0x88, 0x10, 0x80, 0x40, 0x40, 0x00, 0x01, 0x00, + 0x48, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x71, 0xe7, 0x00, 0x00, 0xc0 + }; + + + if (w * h * 2 > W9966_SRAMSIZE) { + DPRINTF("capture window exceeds SRAM size!.\n"); + w = 200; h = 160; /* Pick default values */ + } + + w &= ~0x1; + if (w < 2) + w = 2; + if (h < 1) + h = 1; + if (w > W9966_WND_MAX_W) + w = W9966_WND_MAX_W; + if (h > W9966_WND_MAX_H) + h = W9966_WND_MAX_H; + + cam->width = w; + cam->height = h; + + enh_s = 0; + enh_e = w * h * 2; + + /* Modify capture window if necessary and calculate downscaling */ + if (w9966_calcscale(w, W9966_WND_MIN_X, W9966_WND_MAX_X, &x1, &x2, &scale_x) != 0 || + w9966_calcscale(h, W9966_WND_MIN_Y, W9966_WND_MAX_Y, &y1, &y2, &scale_y) != 0) + return -1; + + DPRINTF("%dx%d, x: %d<->%d, y: %d<->%d, sx: %d/64, sy: %d/64.\n", + w, h, x1, x2, y1, y2, scale_x & ~0x80, scale_y & ~0x80); + + /* Setup registers */ + regs[0x00] = 0x00; /* Set normal operation */ + regs[0x01] = 0x18; /* Capture mode */ + regs[0x02] = scale_y; /* V-scaling */ + regs[0x03] = scale_x; /* H-scaling */ + + /* Capture window */ + regs[0x04] = (x1 & 0x0ff); /* X-start (8 low bits) */ + regs[0x05] = (x1 & 0x300)>>8; /* X-start (2 high bits) */ + regs[0x06] = (y1 & 0x0ff); /* Y-start (8 low bits) */ + regs[0x07] = (y1 & 0x300)>>8; /* Y-start (2 high bits) */ + regs[0x08] = (x2 & 0x0ff); /* X-end (8 low bits) */ + regs[0x09] = (x2 & 0x300)>>8; /* X-end (2 high bits) */ + regs[0x0a] = (y2 & 0x0ff); /* Y-end (8 low bits) */ + + regs[0x0c] = W9966_SRAMID; /* SRAM-banks (1x 128kb) */ + + /* Enhancement layer */ + regs[0x0d] = (enh_s & 0x000ff); /* Enh. start (0-7) */ + regs[0x0e] = (enh_s & 0x0ff00) >> 8; /* Enh. start (8-15) */ + regs[0x0f] = (enh_s & 0x70000) >> 16; /* Enh. start (16-17/18??) */ + regs[0x10] = (enh_e & 0x000ff); /* Enh. end (0-7) */ + regs[0x11] = (enh_e & 0x0ff00) >> 8; /* Enh. end (8-15) */ + regs[0x12] = (enh_e & 0x70000) >> 16; /* Enh. end (16-17/18??) */ + + /* Misc */ + regs[0x13] = 0x40; /* VEE control (raw 4:2:2) */ + regs[0x17] = 0x00; /* ??? */ + regs[0x18] = cam->i2c_state = 0x00; /* Serial bus */ + regs[0x19] = 0xff; /* I/O port direction control */ + regs[0x1a] = 0xff; /* I/O port data register */ + regs[0x1b] = 0x10; /* ??? */ + + /* SAA7111 chip settings */ + saa7111_regs[0x0a] = cam->brightness; + saa7111_regs[0x0b] = cam->contrast; + saa7111_regs[0x0c] = cam->color; + saa7111_regs[0x0d] = cam->hue; + + /* Reset (ECP-fifo & serial-bus) */ + if (w9966_write_reg(cam, 0x00, 0x03) == -1) + return -1; + + /* Write regs to w9966cf chip */ + for (i = 0; i < 0x1c; i++) + if (w9966_write_reg(cam, i, regs[i]) == -1) + return -1; + + /* Write regs to saa7111 chip */ + for (i = 0; i < 0x20; i++) + if (w9966_write_reg_i2c(cam, i, saa7111_regs[i]) == -1) + return -1; + + return 0; +} + +/* + * Video4linux interfacing + */ + +static int cam_querycap(struct file *file, void *priv, + struct v4l2_capability *vcap) +{ + struct w9966 *cam = video_drvdata(file); + + strlcpy(vcap->driver, cam->v4l2_dev.name, sizeof(vcap->driver)); + strlcpy(vcap->card, W9966_DRIVERNAME, sizeof(vcap->card)); + strlcpy(vcap->bus_info, "parport", sizeof(vcap->bus_info)); + vcap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE; + vcap->capabilities = vcap->device_caps | V4L2_CAP_DEVICE_CAPS; + return 0; +} + +static int cam_enum_input(struct file *file, void *fh, struct v4l2_input *vin) +{ + if (vin->index > 0) + return -EINVAL; + strlcpy(vin->name, "Camera", sizeof(vin->name)); + vin->type = V4L2_INPUT_TYPE_CAMERA; + vin->audioset = 0; + vin->tuner = 0; + vin->std = 0; + vin->status = 0; + return 0; +} + +static int cam_g_input(struct file *file, void *fh, unsigned int *inp) +{ + *inp = 0; + return 0; +} + +static int cam_s_input(struct file *file, void *fh, unsigned int inp) +{ + return (inp > 0) ? -EINVAL : 0; +} + +static int cam_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct w9966 *cam = + container_of(ctrl->handler, struct w9966, hdl); + int ret = 0; + + mutex_lock(&cam->lock); + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + cam->brightness = ctrl->val; + break; + case V4L2_CID_CONTRAST: + cam->contrast = ctrl->val; + break; + case V4L2_CID_SATURATION: + cam->color = ctrl->val; + break; + case V4L2_CID_HUE: + cam->hue = ctrl->val; + break; + default: + ret = -EINVAL; + break; + } + + if (ret == 0) { + w9966_pdev_claim(cam); + + if (w9966_write_reg_i2c(cam, 0x0a, cam->brightness) == -1 || + w9966_write_reg_i2c(cam, 0x0b, cam->contrast) == -1 || + w9966_write_reg_i2c(cam, 0x0c, cam->color) == -1 || + w9966_write_reg_i2c(cam, 0x0d, cam->hue) == -1) { + ret = -EIO; + } + + w9966_pdev_release(cam); + } + mutex_unlock(&cam->lock); + return ret; +} + +static int cam_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct w9966 *cam = video_drvdata(file); + struct v4l2_pix_format *pix = &fmt->fmt.pix; + + pix->width = cam->width; + pix->height = cam->height; + pix->pixelformat = V4L2_PIX_FMT_YUYV; + pix->field = V4L2_FIELD_NONE; + pix->bytesperline = 2 * cam->width; + pix->sizeimage = 2 * cam->width * cam->height; + /* Just a guess */ + pix->colorspace = V4L2_COLORSPACE_SMPTE170M; + return 0; +} + +static int cam_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct v4l2_pix_format *pix = &fmt->fmt.pix; + + if (pix->width < 2) + pix->width = 2; + if (pix->height < 1) + pix->height = 1; + if (pix->width > W9966_WND_MAX_W) + pix->width = W9966_WND_MAX_W; + if (pix->height > W9966_WND_MAX_H) + pix->height = W9966_WND_MAX_H; + pix->pixelformat = V4L2_PIX_FMT_YUYV; + pix->field = V4L2_FIELD_NONE; + pix->bytesperline = 2 * pix->width; + pix->sizeimage = 2 * pix->width * pix->height; + /* Just a guess */ + pix->colorspace = V4L2_COLORSPACE_SMPTE170M; + return 0; +} + +static int cam_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) +{ + struct w9966 *cam = video_drvdata(file); + struct v4l2_pix_format *pix = &fmt->fmt.pix; + int ret = cam_try_fmt_vid_cap(file, fh, fmt); + + if (ret) + return ret; + + mutex_lock(&cam->lock); + /* Update camera regs */ + w9966_pdev_claim(cam); + ret = w9966_setup(cam, 0, 0, 1023, 1023, pix->width, pix->height); + w9966_pdev_release(cam); + mutex_unlock(&cam->lock); + return ret; +} + +static int cam_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *fmt) +{ + static struct v4l2_fmtdesc formats[] = { + { 0, 0, 0, + "YUV 4:2:2", V4L2_PIX_FMT_YUYV, + { 0, 0, 0, 0 } + }, + }; + enum v4l2_buf_type type = fmt->type; + + if (fmt->index > 0) + return -EINVAL; + + *fmt = formats[fmt->index]; + fmt->type = type; + return 0; +} + +/* Capture data */ +static ssize_t w9966_v4l_read(struct file *file, char __user *buf, + size_t count, loff_t *ppos) +{ + struct w9966 *cam = video_drvdata(file); + unsigned char addr = 0xa0; /* ECP, read, CCD-transfer, 00000 */ + unsigned char __user *dest = (unsigned char __user *)buf; + unsigned long dleft = count; + unsigned char *tbuf; + + /* Why would anyone want more than this?? */ + if (count > cam->width * cam->height * 2) + return -EINVAL; + + mutex_lock(&cam->lock); + w9966_pdev_claim(cam); + w9966_write_reg(cam, 0x00, 0x02); /* Reset ECP-FIFO buffer */ + w9966_write_reg(cam, 0x00, 0x00); /* Return to normal operation */ + w9966_write_reg(cam, 0x01, 0x98); /* Enable capture */ + + /* write special capture-addr and negotiate into data transfer */ + if ((parport_negotiate(cam->pport, cam->ppmode|IEEE1284_ADDR) != 0) || + (parport_write(cam->pport, &addr, 1) != 1) || + (parport_negotiate(cam->pport, cam->ppmode|IEEE1284_DATA) != 0)) { + w9966_pdev_release(cam); + mutex_unlock(&cam->lock); + return -EFAULT; + } + + tbuf = kmalloc(W9966_RBUFFER, GFP_KERNEL); + if (tbuf == NULL) { + count = -ENOMEM; + goto out; + } + + while (dleft > 0) { + unsigned long tsize = (dleft > W9966_RBUFFER) ? W9966_RBUFFER : dleft; + + if (parport_read(cam->pport, tbuf, tsize) < tsize) { + count = -EFAULT; + goto out; + } + if (copy_to_user(dest, tbuf, tsize) != 0) { + count = -EFAULT; + goto out; + } + dest += tsize; + dleft -= tsize; + } + + w9966_write_reg(cam, 0x01, 0x18); /* Disable capture */ + +out: + kfree(tbuf); + w9966_pdev_release(cam); + mutex_unlock(&cam->lock); + + return count; +} + +static const struct v4l2_file_operations w9966_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = v4l2_fh_release, + .poll = v4l2_ctrl_poll, + .unlocked_ioctl = video_ioctl2, + .read = w9966_v4l_read, +}; + +static const struct v4l2_ioctl_ops w9966_ioctl_ops = { + .vidioc_querycap = cam_querycap, + .vidioc_g_input = cam_g_input, + .vidioc_s_input = cam_s_input, + .vidioc_enum_input = cam_enum_input, + .vidioc_enum_fmt_vid_cap = cam_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = cam_g_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = cam_s_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = cam_try_fmt_vid_cap, + .vidioc_log_status = v4l2_ctrl_log_status, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +static const struct v4l2_ctrl_ops cam_ctrl_ops = { + .s_ctrl = cam_s_ctrl, +}; + + +/* Initialize camera device. Setup all internal flags, set a + default video mode, setup ccd-chip, register v4l device etc.. + Also used for 'probing' of hardware. + -1 on error */ +static int w9966_init(struct w9966 *cam, struct parport *port) +{ + struct v4l2_device *v4l2_dev = &cam->v4l2_dev; + + if (cam->dev_state != 0) + return -1; + + strlcpy(v4l2_dev->name, "w9966", sizeof(v4l2_dev->name)); + + if (v4l2_device_register(NULL, v4l2_dev) < 0) { + v4l2_err(v4l2_dev, "Could not register v4l2_device\n"); + return -1; + } + + v4l2_ctrl_handler_init(&cam->hdl, 4); + v4l2_ctrl_new_std(&cam->hdl, &cam_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 128); + v4l2_ctrl_new_std(&cam->hdl, &cam_ctrl_ops, + V4L2_CID_CONTRAST, -64, 64, 1, 64); + v4l2_ctrl_new_std(&cam->hdl, &cam_ctrl_ops, + V4L2_CID_SATURATION, -64, 64, 1, 64); + v4l2_ctrl_new_std(&cam->hdl, &cam_ctrl_ops, + V4L2_CID_HUE, -128, 127, 1, 0); + if (cam->hdl.error) { + v4l2_err(v4l2_dev, "couldn't register controls\n"); + return -1; + } + cam->pport = port; + cam->brightness = 128; + cam->contrast = 64; + cam->color = 64; + cam->hue = 0; + + /* Select requested transfer mode */ + switch (parmode) { + default: /* Auto-detect (priority: hw-ecp, hw-epp, sw-ecp) */ + case 0: + if (port->modes & PARPORT_MODE_ECP) + cam->ppmode = IEEE1284_MODE_ECP; + else if (port->modes & PARPORT_MODE_EPP) + cam->ppmode = IEEE1284_MODE_EPP; + else + cam->ppmode = IEEE1284_MODE_ECP; + break; + case 1: /* hw- or sw-ecp */ + cam->ppmode = IEEE1284_MODE_ECP; + break; + case 2: /* hw- or sw-epp */ + cam->ppmode = IEEE1284_MODE_EPP; + break; + } + + /* Tell the parport driver that we exists */ + cam->pdev = parport_register_device(port, "w9966", NULL, NULL, NULL, 0, NULL); + if (cam->pdev == NULL) { + DPRINTF("parport_register_device() failed\n"); + return -1; + } + w9966_set_state(cam, W9966_STATE_PDEV, W9966_STATE_PDEV); + + w9966_pdev_claim(cam); + + /* Setup a default capture mode */ + if (w9966_setup(cam, 0, 0, 1023, 1023, 200, 160) != 0) { + DPRINTF("w9966_setup() failed.\n"); + return -1; + } + + w9966_pdev_release(cam); + + /* Fill in the video_device struct and register us to v4l */ + strlcpy(cam->vdev.name, W9966_DRIVERNAME, sizeof(cam->vdev.name)); + cam->vdev.v4l2_dev = v4l2_dev; + cam->vdev.fops = &w9966_fops; + cam->vdev.ioctl_ops = &w9966_ioctl_ops; + cam->vdev.release = video_device_release_empty; + cam->vdev.ctrl_handler = &cam->hdl; + video_set_drvdata(&cam->vdev, cam); + + mutex_init(&cam->lock); + + if (video_register_device(&cam->vdev, VFL_TYPE_GRABBER, video_nr) < 0) + return -1; + + w9966_set_state(cam, W9966_STATE_VDEV, W9966_STATE_VDEV); + + /* All ok */ + v4l2_info(v4l2_dev, "Found and initialized a webcam on %s.\n", + cam->pport->name); + return 0; +} + + +/* Terminate everything gracefully */ +static void w9966_term(struct w9966 *cam) +{ + /* Unregister from v4l */ + if (w9966_get_state(cam, W9966_STATE_VDEV, W9966_STATE_VDEV)) { + video_unregister_device(&cam->vdev); + w9966_set_state(cam, W9966_STATE_VDEV, 0); + } + + v4l2_ctrl_handler_free(&cam->hdl); + + /* Terminate from IEEE1284 mode and release pdev block */ + if (w9966_get_state(cam, W9966_STATE_PDEV, W9966_STATE_PDEV)) { + w9966_pdev_claim(cam); + parport_negotiate(cam->pport, IEEE1284_MODE_COMPAT); + w9966_pdev_release(cam); + } + + /* Unregister from parport */ + if (w9966_get_state(cam, W9966_STATE_PDEV, W9966_STATE_PDEV)) { + parport_unregister_device(cam->pdev); + w9966_set_state(cam, W9966_STATE_PDEV, 0); + } + memset(cam, 0, sizeof(*cam)); +} + + +/* Called once for every parport on init */ +static void w9966_attach(struct parport *port) +{ + int i; + + for (i = 0; i < W9966_MAXCAMS; i++) { + if (w9966_cams[i].dev_state != 0) /* Cam is already assigned */ + continue; + if (strcmp(pardev[i], "aggressive") == 0 || strcmp(pardev[i], port->name) == 0) { + if (w9966_init(&w9966_cams[i], port) != 0) + w9966_term(&w9966_cams[i]); + break; /* return */ + } + } +} + +/* Called once for every parport on termination */ +static void w9966_detach(struct parport *port) +{ + int i; + + for (i = 0; i < W9966_MAXCAMS; i++) + if (w9966_cams[i].dev_state != 0 && w9966_cams[i].pport == port) + w9966_term(&w9966_cams[i]); +} + + +static struct parport_driver w9966_ppd = { + .name = W9966_DRIVERNAME, + .attach = w9966_attach, + .detach = w9966_detach, +}; + +/* Module entry point */ +static int __init w9966_mod_init(void) +{ + int i; + + for (i = 0; i < W9966_MAXCAMS; i++) + w9966_cams[i].dev_state = 0; + + return parport_register_driver(&w9966_ppd); +} + +/* Module cleanup */ +static void __exit w9966_mod_term(void) +{ + parport_unregister_driver(&w9966_ppd); +} + +module_init(w9966_mod_init); +module_exit(w9966_mod_term); diff --git a/drivers/staging/media/tlg2300/Kconfig b/drivers/staging/media/tlg2300/Kconfig new file mode 100644 index 000000000000..81784c6f7b88 --- /dev/null +++ b/drivers/staging/media/tlg2300/Kconfig @@ -0,0 +1,20 @@ +config VIDEO_TLG2300 + tristate "Telegent TLG2300 USB video capture support (Deprecated)" + depends on VIDEO_DEV && I2C && SND && DVB_CORE + select VIDEO_TUNER + select VIDEO_TVEEPROM + depends on RC_CORE + select VIDEOBUF_VMALLOC + select SND_PCM + select VIDEOBUF_DVB + + ---help--- + This is a video4linux driver for Telegent tlg2300 based TV cards. + The driver supports V4L2, DVB-T and radio. + + This driver is deprecated and will be removed soon. If you have + hardware for this and you want to work on this driver, then contact + the linux-media mailinglist. + + To compile this driver as a module, choose M here: the + module will be called poseidon diff --git a/drivers/staging/media/tlg2300/Makefile b/drivers/staging/media/tlg2300/Makefile new file mode 100644 index 000000000000..137f8e38cdec --- /dev/null +++ b/drivers/staging/media/tlg2300/Makefile @@ -0,0 +1,9 @@ +poseidon-objs := pd-video.o pd-alsa.o pd-dvb.o pd-radio.o pd-main.o + +obj-$(CONFIG_VIDEO_TLG2300) += poseidon.o + +ccflags-y += -Idrivers/media/i2c +ccflags-y += -Idrivers/media/tuners +ccflags-y += -Idrivers/media/dvb-core +ccflags-y += -Idrivers/media/dvb-frontends + diff --git a/drivers/staging/media/tlg2300/pd-alsa.c b/drivers/staging/media/tlg2300/pd-alsa.c new file mode 100644 index 000000000000..dd8fe100590f --- /dev/null +++ b/drivers/staging/media/tlg2300/pd-alsa.c @@ -0,0 +1,337 @@ +#include <linux/kernel.h> +#include <linux/usb.h> +#include <linux/init.h> +#include <linux/sound.h> +#include <linux/spinlock.h> +#include <linux/soundcard.h> +#include <linux/vmalloc.h> +#include <linux/proc_fs.h> +#include <linux/module.h> +#include <linux/gfp.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/info.h> +#include <sound/initval.h> +#include <sound/control.h> +#include <media/v4l2-common.h> +#include "pd-common.h" +#include "vendorcmds.h" + +static void complete_handler_audio(struct urb *urb); +#define AUDIO_EP (0x83) +#define AUDIO_BUF_SIZE (512) +#define PERIOD_SIZE (1024 * 8) +#define PERIOD_MIN (4) +#define PERIOD_MAX PERIOD_MIN + +static struct snd_pcm_hardware snd_pd_hw_capture = { + .info = SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_MMAP_VALID, + + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .rates = SNDRV_PCM_RATE_48000, + + .rate_min = 48000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = PERIOD_SIZE * PERIOD_MIN, + .period_bytes_min = PERIOD_SIZE, + .period_bytes_max = PERIOD_SIZE, + .periods_min = PERIOD_MIN, + .periods_max = PERIOD_MAX, + /* + .buffer_bytes_max = 62720 * 8, + .period_bytes_min = 64, + .period_bytes_max = 12544, + .periods_min = 2, + .periods_max = 98 + */ +}; + +static int snd_pd_capture_open(struct snd_pcm_substream *substream) +{ + struct poseidon *p = snd_pcm_substream_chip(substream); + struct poseidon_audio *pa = &p->audio; + struct snd_pcm_runtime *runtime = substream->runtime; + + if (!p) + return -ENODEV; + pa->users++; + pa->card_close = 0; + pa->capture_pcm_substream = substream; + runtime->private_data = p; + + runtime->hw = snd_pd_hw_capture; + snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); + usb_autopm_get_interface(p->interface); + kref_get(&p->kref); + return 0; +} + +static int snd_pd_pcm_close(struct snd_pcm_substream *substream) +{ + struct poseidon *p = snd_pcm_substream_chip(substream); + struct poseidon_audio *pa = &p->audio; + + pa->users--; + pa->card_close = 1; + usb_autopm_put_interface(p->interface); + kref_put(&p->kref, poseidon_delete); + return 0; +} + +static int snd_pd_hw_capture_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + unsigned int size; + + size = params_buffer_bytes(hw_params); + if (runtime->dma_area) { + if (runtime->dma_bytes > size) + return 0; + vfree(runtime->dma_area); + } + runtime->dma_area = vmalloc(size); + if (!runtime->dma_area) + return -ENOMEM; + else + runtime->dma_bytes = size; + return 0; +} + +static int audio_buf_free(struct poseidon *p) +{ + struct poseidon_audio *pa = &p->audio; + int i; + + for (i = 0; i < AUDIO_BUFS; i++) + if (pa->urb_array[i]) + usb_kill_urb(pa->urb_array[i]); + free_all_urb_generic(pa->urb_array, AUDIO_BUFS); + logpm(); + return 0; +} + +static int snd_pd_hw_capture_free(struct snd_pcm_substream *substream) +{ + struct poseidon *p = snd_pcm_substream_chip(substream); + + logpm(); + audio_buf_free(p); + return 0; +} + +static int snd_pd_prepare(struct snd_pcm_substream *substream) +{ + return 0; +} + +#define AUDIO_TRAILER_SIZE (16) +static inline void handle_audio_data(struct urb *urb, int *period_elapsed) +{ + struct poseidon_audio *pa = urb->context; + struct snd_pcm_runtime *runtime = pa->capture_pcm_substream->runtime; + + int stride = runtime->frame_bits >> 3; + int len = urb->actual_length / stride; + unsigned char *cp = urb->transfer_buffer; + unsigned int oldptr = pa->rcv_position; + + if (urb->actual_length == AUDIO_BUF_SIZE - 4) + len -= (AUDIO_TRAILER_SIZE / stride); + + /* do the copy */ + if (oldptr + len >= runtime->buffer_size) { + unsigned int cnt = runtime->buffer_size - oldptr; + + memcpy(runtime->dma_area + oldptr * stride, cp, cnt * stride); + memcpy(runtime->dma_area, (cp + cnt * stride), + (len * stride - cnt * stride)); + } else + memcpy(runtime->dma_area + oldptr * stride, cp, len * stride); + + /* update the statas */ + snd_pcm_stream_lock(pa->capture_pcm_substream); + pa->rcv_position += len; + if (pa->rcv_position >= runtime->buffer_size) + pa->rcv_position -= runtime->buffer_size; + + pa->copied_position += (len); + if (pa->copied_position >= runtime->period_size) { + pa->copied_position -= runtime->period_size; + *period_elapsed = 1; + } + snd_pcm_stream_unlock(pa->capture_pcm_substream); +} + +static void complete_handler_audio(struct urb *urb) +{ + struct poseidon_audio *pa = urb->context; + struct snd_pcm_substream *substream = pa->capture_pcm_substream; + int period_elapsed = 0; + int ret; + + if (1 == pa->card_close || pa->capture_stream != STREAM_ON) + return; + + if (urb->status != 0) { + /*if (urb->status == -ESHUTDOWN)*/ + return; + } + + if (substream) { + if (urb->actual_length) { + handle_audio_data(urb, &period_elapsed); + if (period_elapsed) + snd_pcm_period_elapsed(substream); + } + } + + ret = usb_submit_urb(urb, GFP_ATOMIC); + if (ret < 0) + log("audio urb failed (errcod = %i)", ret); + return; +} + +static int fire_audio_urb(struct poseidon *p) +{ + int i, ret = 0; + struct poseidon_audio *pa = &p->audio; + + alloc_bulk_urbs_generic(pa->urb_array, AUDIO_BUFS, + p->udev, AUDIO_EP, + AUDIO_BUF_SIZE, GFP_ATOMIC, + complete_handler_audio, pa); + + for (i = 0; i < AUDIO_BUFS; i++) { + ret = usb_submit_urb(pa->urb_array[i], GFP_KERNEL); + if (ret) + log("urb err : %d", ret); + } + log(); + return ret; +} + +static int snd_pd_capture_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct poseidon *p = snd_pcm_substream_chip(substream); + struct poseidon_audio *pa = &p->audio; + + if (debug_mode) + log("cmd %d, audio stat : %d\n", cmd, pa->capture_stream); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_START: + if (pa->capture_stream == STREAM_ON) + return 0; + + pa->rcv_position = pa->copied_position = 0; + pa->capture_stream = STREAM_ON; + + if (in_hibernation(p)) + return 0; + fire_audio_urb(p); + return 0; + + case SNDRV_PCM_TRIGGER_SUSPEND: + pa->capture_stream = STREAM_SUSPEND; + return 0; + case SNDRV_PCM_TRIGGER_STOP: + pa->capture_stream = STREAM_OFF; + return 0; + default: + return -EINVAL; + } +} + +static snd_pcm_uframes_t +snd_pd_capture_pointer(struct snd_pcm_substream *substream) +{ + struct poseidon *p = snd_pcm_substream_chip(substream); + struct poseidon_audio *pa = &p->audio; + return pa->rcv_position; +} + +static struct page *snd_pcm_pd_get_page(struct snd_pcm_substream *subs, + unsigned long offset) +{ + void *pageptr = subs->runtime->dma_area + offset; + return vmalloc_to_page(pageptr); +} + +static struct snd_pcm_ops pcm_capture_ops = { + .open = snd_pd_capture_open, + .close = snd_pd_pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = snd_pd_hw_capture_params, + .hw_free = snd_pd_hw_capture_free, + .prepare = snd_pd_prepare, + .trigger = snd_pd_capture_trigger, + .pointer = snd_pd_capture_pointer, + .page = snd_pcm_pd_get_page, +}; + +#ifdef CONFIG_PM +int pm_alsa_suspend(struct poseidon *p) +{ + logpm(p); + audio_buf_free(p); + return 0; +} + +int pm_alsa_resume(struct poseidon *p) +{ + logpm(p); + fire_audio_urb(p); + return 0; +} +#endif + +int poseidon_audio_init(struct poseidon *p) +{ + struct poseidon_audio *pa = &p->audio; + struct snd_card *card; + struct snd_pcm *pcm; + int ret; + + ret = snd_card_new(&p->interface->dev, -1, "Telegent", + THIS_MODULE, 0, &card); + if (ret != 0) + return ret; + + ret = snd_pcm_new(card, "poseidon audio", 0, 0, 1, &pcm); + if (ret < 0) { + snd_card_free(card); + return ret; + } + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_capture_ops); + pcm->info_flags = 0; + pcm->private_data = p; + strcpy(pcm->name, "poseidon audio capture"); + + strcpy(card->driver, "ALSA driver"); + strcpy(card->shortname, "poseidon Audio"); + strcpy(card->longname, "poseidon ALSA Audio"); + + if (snd_card_register(card)) { + snd_card_free(card); + return -ENOMEM; + } + pa->card = card; + return 0; +} + +int poseidon_audio_free(struct poseidon *p) +{ + struct poseidon_audio *pa = &p->audio; + + if (pa->card) + snd_card_free(pa->card); + return 0; +} diff --git a/drivers/staging/media/tlg2300/pd-common.h b/drivers/staging/media/tlg2300/pd-common.h new file mode 100644 index 000000000000..9e23ad32d2fe --- /dev/null +++ b/drivers/staging/media/tlg2300/pd-common.h @@ -0,0 +1,271 @@ +#ifndef PD_COMMON_H +#define PD_COMMON_H + +#include <linux/fs.h> +#include <linux/wait.h> +#include <linux/list.h> +#include <linux/videodev2.h> +#include <linux/semaphore.h> +#include <linux/usb.h> +#include <linux/poll.h> +#include <media/videobuf-vmalloc.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ctrls.h> + +#include "dvb_frontend.h" +#include "dvbdev.h" +#include "dvb_demux.h" +#include "dmxdev.h" + +#define SBUF_NUM 8 +#define MAX_BUFFER_NUM 6 +#define PK_PER_URB 32 +#define ISO_PKT_SIZE 3072 + +#define POSEIDON_STATE_NONE (0x0000) +#define POSEIDON_STATE_ANALOG (0x0001) +#define POSEIDON_STATE_FM (0x0002) +#define POSEIDON_STATE_DVBT (0x0004) +#define POSEIDON_STATE_DISCONNECT (0x0080) + +#define PM_SUSPEND_DELAY 3 + +#define V4L_PAL_VBI_LINES 18 +#define V4L_NTSC_VBI_LINES 12 +#define V4L_PAL_VBI_FRAMESIZE (V4L_PAL_VBI_LINES * 1440 * 2) +#define V4L_NTSC_VBI_FRAMESIZE (V4L_NTSC_VBI_LINES * 1440 * 2) + +#define TUNER_FREQ_MIN (45000000U) +#define TUNER_FREQ_MAX (862000000U) + +struct vbi_data { + struct video_device v_dev; + struct video_data *video; + struct front_face *front; + + unsigned int copied; + unsigned int vbi_size; /* the whole size of two fields */ + int users; +}; + +/* + * This is the running context of the video, it is useful for + * resume() + */ +struct running_context { + u32 freq; /* VIDIOC_S_FREQUENCY */ + int audio_idx; /* VIDIOC_S_TUNER */ + v4l2_std_id tvnormid; /* VIDIOC_S_STD */ + int sig_index; /* VIDIOC_S_INPUT */ + struct v4l2_pix_format pix; /* VIDIOC_S_FMT */ +}; + +struct video_data { + /* v4l2 video device */ + struct video_device v_dev; + struct v4l2_ctrl_handler ctrl_handler; + + /* the working context */ + struct running_context context; + + /* for data copy */ + int field_count; + + char *dst; + int lines_copied; + int prev_left; + + int lines_per_field; + int lines_size; + + /* for communication */ + u8 endpoint_addr; + struct urb *urb_array[SBUF_NUM]; + struct vbi_data *vbi; + struct poseidon *pd; + struct front_face *front; + + int is_streaming; + int users; + + /* for bubble handler */ + struct work_struct bubble_work; +}; + +enum pcm_stream_state { + STREAM_OFF, + STREAM_ON, + STREAM_SUSPEND, +}; + +#define AUDIO_BUFS (3) +#define CAPTURE_STREAM_EN 1 +struct poseidon_audio { + struct urb *urb_array[AUDIO_BUFS]; + unsigned int copied_position; + struct snd_pcm_substream *capture_pcm_substream; + + unsigned int rcv_position; + struct snd_card *card; + int card_close; + + int users; + int pm_state; + enum pcm_stream_state capture_stream; +}; + +struct radio_data { + __u32 fm_freq; + unsigned int is_radio_streaming; + int pre_emphasis; + struct video_device fm_dev; + struct v4l2_ctrl_handler ctrl_handler; +}; + +#define DVB_SBUF_NUM 4 +#define DVB_URB_BUF_SIZE 0x2000 +struct pd_dvb_adapter { + struct dvb_adapter dvb_adap; + struct dvb_frontend dvb_fe; + struct dmxdev dmxdev; + struct dvb_demux demux; + + atomic_t users; + atomic_t active_feed; + + /* data transfer */ + s32 is_streaming; + struct urb *urb_array[DVB_SBUF_NUM]; + struct poseidon *pd_device; + u8 ep_addr; + u8 reserved[3]; + + /* data for power resume*/ + struct dtv_frontend_properties fe_param; + + /* for channel scanning */ + int prev_freq; + int bandwidth; + unsigned long last_jiffies; +}; + +struct front_face { + /* use this field to distinguish VIDEO and VBI */ + enum v4l2_buf_type type; + + /* for host */ + struct videobuf_queue q; + + /* the bridge for host and device */ + struct videobuf_buffer *curr_frame; + + /* for device */ + spinlock_t queue_lock; + struct list_head active; + struct poseidon *pd; +}; + +struct poseidon { + struct list_head device_list; + + struct mutex lock; + struct kref kref; + + /* for V4L2 */ + struct v4l2_device v4l2_dev; + + /* hardware info */ + struct usb_device *udev; + struct usb_interface *interface; + int cur_transfer_mode; + + struct video_data video_data; /* video */ + struct vbi_data vbi_data; /* vbi */ + struct poseidon_audio audio; /* audio (alsa) */ + struct radio_data radio_data; /* FM */ + struct pd_dvb_adapter dvb_data; /* DVB */ + + u32 state; + struct file *file_for_stream; /* the active stream*/ + +#ifdef CONFIG_PM + int (*pm_suspend)(struct poseidon *); + int (*pm_resume)(struct poseidon *); + pm_message_t msg; + + struct work_struct pm_work; + u8 portnum; +#endif +}; + +struct poseidon_format { + char *name; + int fourcc; /* video4linux 2 */ + int depth; /* bit/pixel */ + int flags; +}; + +struct poseidon_tvnorm { + v4l2_std_id v4l2_id; + char name[12]; + u32 tlg_tvnorm; +}; + +/* video */ +int pd_video_init(struct poseidon *); +void pd_video_exit(struct poseidon *); +int stop_all_video_stream(struct poseidon *); + +/* alsa audio */ +int poseidon_audio_init(struct poseidon *); +int poseidon_audio_free(struct poseidon *); +#ifdef CONFIG_PM +int pm_alsa_suspend(struct poseidon *); +int pm_alsa_resume(struct poseidon *); +#endif + +/* dvb */ +int pd_dvb_usb_device_init(struct poseidon *); +void pd_dvb_usb_device_exit(struct poseidon *); +void pd_dvb_usb_device_cleanup(struct poseidon *); +int pd_dvb_get_adapter_num(struct pd_dvb_adapter *); +void dvb_stop_streaming(struct pd_dvb_adapter *); + +/* FM */ +int poseidon_fm_init(struct poseidon *); +int poseidon_fm_exit(struct poseidon *); + +/* vendor command ops */ +int send_set_req(struct poseidon*, u8, s32, s32*); +int send_get_req(struct poseidon*, u8, s32, void*, s32*, s32); +s32 set_tuner_mode(struct poseidon*, unsigned char); + +/* bulk urb alloc/free */ +int alloc_bulk_urbs_generic(struct urb **urb_array, int num, + struct usb_device *udev, u8 ep_addr, + int buf_size, gfp_t gfp_flags, + usb_complete_t complete_fn, void *context); +void free_all_urb_generic(struct urb **urb_array, int num); + +/* misc */ +void poseidon_delete(struct kref *kref); +extern int debug_mode; +void set_debug_mode(struct video_device *vfd, int debug_mode); + +#ifdef CONFIG_PM +#define in_hibernation(pd) (pd->msg.event == PM_EVENT_FREEZE) +#else +#define in_hibernation(pd) (0) +#endif +#define get_pm_count(p) (atomic_read(&(p)->interface->pm_usage_cnt)) + +#define log(a, ...) printk(KERN_DEBUG "\t[ %s : %.3d ] "a"\n", \ + __func__, __LINE__, ## __VA_ARGS__) + +/* for power management */ +#define logpm(pd) do {\ + if (debug_mode & 0x10)\ + log();\ + } while (0) + +#endif diff --git a/drivers/staging/media/tlg2300/pd-dvb.c b/drivers/staging/media/tlg2300/pd-dvb.c new file mode 100644 index 000000000000..ca4994a5190c --- /dev/null +++ b/drivers/staging/media/tlg2300/pd-dvb.c @@ -0,0 +1,597 @@ +#include "pd-common.h" +#include <linux/kernel.h> +#include <linux/usb.h> +#include <linux/time.h> +#include <linux/dvb/dmx.h> +#include <linux/delay.h> +#include <linux/gfp.h> + +#include "vendorcmds.h" +#include <linux/sched.h> +#include <linux/atomic.h> + +static void dvb_urb_cleanup(struct pd_dvb_adapter *pd_dvb); + +static int dvb_bandwidth[][2] = { + { TLG_BW_8, 8000000 }, + { TLG_BW_7, 7000000 }, + { TLG_BW_6, 6000000 } +}; +static int dvb_bandwidth_length = ARRAY_SIZE(dvb_bandwidth); + +static s32 dvb_start_streaming(struct pd_dvb_adapter *pd_dvb); +static int poseidon_check_mode_dvbt(struct poseidon *pd) +{ + s32 ret = 0, cmd_status = 0; + + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ/4); + + ret = usb_set_interface(pd->udev, 0, BULK_ALTERNATE_IFACE); + if (ret != 0) + return ret; + + ret = set_tuner_mode(pd, TLG_MODE_CAPS_DVB_T); + if (ret) + return ret; + + /* signal source */ + ret = send_set_req(pd, SGNL_SRC_SEL, TLG_SIG_SRC_ANTENNA, &cmd_status); + if (ret|cmd_status) + return ret; + + return 0; +} + +/* acquire : + * 1 == open + * 0 == release + */ +static int poseidon_ts_bus_ctrl(struct dvb_frontend *fe, int acquire) +{ + struct poseidon *pd = fe->demodulator_priv; + struct pd_dvb_adapter *pd_dvb; + int ret = 0; + + if (!pd) + return -ENODEV; + + pd_dvb = container_of(fe, struct pd_dvb_adapter, dvb_fe); + if (acquire) { + mutex_lock(&pd->lock); + if (pd->state & POSEIDON_STATE_DISCONNECT) { + ret = -ENODEV; + goto open_out; + } + + if (pd->state && !(pd->state & POSEIDON_STATE_DVBT)) { + ret = -EBUSY; + goto open_out; + } + + usb_autopm_get_interface(pd->interface); + if (0 == pd->state) { + ret = poseidon_check_mode_dvbt(pd); + if (ret < 0) { + usb_autopm_put_interface(pd->interface); + goto open_out; + } + pd->state |= POSEIDON_STATE_DVBT; + pd_dvb->bandwidth = 0; + pd_dvb->prev_freq = 0; + } + atomic_inc(&pd_dvb->users); + kref_get(&pd->kref); +open_out: + mutex_unlock(&pd->lock); + } else { + dvb_stop_streaming(pd_dvb); + + if (atomic_dec_and_test(&pd_dvb->users)) { + mutex_lock(&pd->lock); + pd->state &= ~POSEIDON_STATE_DVBT; + mutex_unlock(&pd->lock); + } + kref_put(&pd->kref, poseidon_delete); + usb_autopm_put_interface(pd->interface); + } + return ret; +} + +#ifdef CONFIG_PM +static void poseidon_fe_release(struct dvb_frontend *fe) +{ + struct poseidon *pd = fe->demodulator_priv; + + pd->pm_suspend = NULL; + pd->pm_resume = NULL; +} +#else +#define poseidon_fe_release NULL +#endif + +static s32 poseidon_fe_sleep(struct dvb_frontend *fe) +{ + return 0; +} + +/* + * return true if we can satisfy the conditions, else return false. + */ +static bool check_scan_ok(__u32 freq, int bandwidth, + struct pd_dvb_adapter *adapter) +{ + if (bandwidth < 0) + return false; + + if (adapter->prev_freq == freq + && adapter->bandwidth == bandwidth) { + long nl = jiffies - adapter->last_jiffies; + unsigned int msec ; + + msec = jiffies_to_msecs(abs(nl)); + return msec > 15000 ? true : false; + } + return true; +} + +/* + * Check if the firmware delays too long for an invalid frequency. + */ +static int fw_delay_overflow(struct pd_dvb_adapter *adapter) +{ + long nl = jiffies - adapter->last_jiffies; + unsigned int msec ; + + msec = jiffies_to_msecs(abs(nl)); + return msec > 800 ? true : false; +} + +static int poseidon_set_fe(struct dvb_frontend *fe) +{ + struct dtv_frontend_properties *fep = &fe->dtv_property_cache; + s32 ret = 0, cmd_status = 0; + s32 i, bandwidth = -1; + struct poseidon *pd = fe->demodulator_priv; + struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; + + if (in_hibernation(pd)) + return -EBUSY; + + mutex_lock(&pd->lock); + for (i = 0; i < dvb_bandwidth_length; i++) + if (fep->bandwidth_hz == dvb_bandwidth[i][1]) + bandwidth = dvb_bandwidth[i][0]; + + if (check_scan_ok(fep->frequency, bandwidth, pd_dvb)) { + ret = send_set_req(pd, TUNE_FREQ_SELECT, + fep->frequency / 1000, &cmd_status); + if (ret | cmd_status) { + log("error line"); + goto front_out; + } + + ret = send_set_req(pd, DVBT_BANDW_SEL, + bandwidth, &cmd_status); + if (ret | cmd_status) { + log("error line"); + goto front_out; + } + + ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status); + if (ret | cmd_status) { + log("error line"); + goto front_out; + } + + /* save the context for future */ + memcpy(&pd_dvb->fe_param, fep, sizeof(*fep)); + pd_dvb->bandwidth = bandwidth; + pd_dvb->prev_freq = fep->frequency; + pd_dvb->last_jiffies = jiffies; + } +front_out: + mutex_unlock(&pd->lock); + return ret; +} + +#ifdef CONFIG_PM +static int pm_dvb_suspend(struct poseidon *pd) +{ + struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; + dvb_stop_streaming(pd_dvb); + dvb_urb_cleanup(pd_dvb); + msleep(500); + return 0; +} + +static int pm_dvb_resume(struct poseidon *pd) +{ + struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; + + poseidon_check_mode_dvbt(pd); + msleep(300); + poseidon_set_fe(&pd_dvb->dvb_fe); + + dvb_start_streaming(pd_dvb); + return 0; +} +#endif + +static s32 poseidon_fe_init(struct dvb_frontend *fe) +{ + struct poseidon *pd = fe->demodulator_priv; + struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; + +#ifdef CONFIG_PM + pd->pm_suspend = pm_dvb_suspend; + pd->pm_resume = pm_dvb_resume; +#endif + memset(&pd_dvb->fe_param, 0, + sizeof(struct dtv_frontend_properties)); + return 0; +} + +static int poseidon_get_fe(struct dvb_frontend *fe) +{ + struct dtv_frontend_properties *fep = &fe->dtv_property_cache; + struct poseidon *pd = fe->demodulator_priv; + struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; + + memcpy(fep, &pd_dvb->fe_param, sizeof(*fep)); + return 0; +} + +static int poseidon_fe_get_tune_settings(struct dvb_frontend *fe, + struct dvb_frontend_tune_settings *tune) +{ + tune->min_delay_ms = 1000; + return 0; +} + +static int poseidon_read_status(struct dvb_frontend *fe, fe_status_t *stat) +{ + struct poseidon *pd = fe->demodulator_priv; + s32 ret = -1, cmd_status; + struct tuner_dtv_sig_stat_s status = {}; + + if (in_hibernation(pd)) + return -EBUSY; + mutex_lock(&pd->lock); + + ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_DVB_T, + &status, &cmd_status, sizeof(status)); + if (ret | cmd_status) { + log("get tuner status error"); + goto out; + } + + if (debug_mode) + log("P : %d, L %d, LB :%d", status.sig_present, + status.sig_locked, status.sig_lock_busy); + + if (status.sig_lock_busy) { + goto out; + } else if (status.sig_present || status.sig_locked) { + *stat |= FE_HAS_LOCK | FE_HAS_SIGNAL | FE_HAS_CARRIER + | FE_HAS_SYNC | FE_HAS_VITERBI; + } else { + if (fw_delay_overflow(&pd->dvb_data)) + *stat |= FE_TIMEDOUT; + } +out: + mutex_unlock(&pd->lock); + return ret; +} + +static int poseidon_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + struct poseidon *pd = fe->demodulator_priv; + struct tuner_ber_rate_s tlg_ber = {}; + s32 ret = -1, cmd_status; + + mutex_lock(&pd->lock); + ret = send_get_req(pd, TUNER_BER_RATE, 0, + &tlg_ber, &cmd_status, sizeof(tlg_ber)); + if (ret | cmd_status) + goto out; + *ber = tlg_ber.ber_rate; +out: + mutex_unlock(&pd->lock); + return ret; +} + +static s32 poseidon_read_signal_strength(struct dvb_frontend *fe, u16 *strength) +{ + struct poseidon *pd = fe->demodulator_priv; + struct tuner_dtv_sig_stat_s status = {}; + s32 ret = 0, cmd_status; + + mutex_lock(&pd->lock); + ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_DVB_T, + &status, &cmd_status, sizeof(status)); + if (ret | cmd_status) + goto out; + if ((status.sig_present || status.sig_locked) && !status.sig_strength) + *strength = 0xFFFF; + else + *strength = status.sig_strength; +out: + mutex_unlock(&pd->lock); + return ret; +} + +static int poseidon_read_snr(struct dvb_frontend *fe, u16 *snr) +{ + return 0; +} + +static int poseidon_read_unc_blocks(struct dvb_frontend *fe, u32 *unc) +{ + *unc = 0; + return 0; +} + +static struct dvb_frontend_ops poseidon_frontend_ops = { + .delsys = { SYS_DVBT }, + .info = { + .name = "Poseidon DVB-T", + .frequency_min = 174000000, + .frequency_max = 862000000, + .frequency_stepsize = 62500,/* FIXME */ + .caps = FE_CAN_INVERSION_AUTO | + FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | + FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | + FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | + FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | + FE_CAN_GUARD_INTERVAL_AUTO | + FE_CAN_RECOVER | + FE_CAN_HIERARCHY_AUTO, + }, + + .release = poseidon_fe_release, + + .init = poseidon_fe_init, + .sleep = poseidon_fe_sleep, + + .set_frontend = poseidon_set_fe, + .get_frontend = poseidon_get_fe, + .get_tune_settings = poseidon_fe_get_tune_settings, + + .read_status = poseidon_read_status, + .read_ber = poseidon_read_ber, + .read_signal_strength = poseidon_read_signal_strength, + .read_snr = poseidon_read_snr, + .read_ucblocks = poseidon_read_unc_blocks, + + .ts_bus_ctrl = poseidon_ts_bus_ctrl, +}; + +static void dvb_urb_irq(struct urb *urb) +{ + struct pd_dvb_adapter *pd_dvb = urb->context; + int len = urb->transfer_buffer_length; + struct dvb_demux *demux = &pd_dvb->demux; + s32 ret; + + if (!pd_dvb->is_streaming || urb->status) { + if (urb->status == -EPROTO) + goto resend; + return; + } + + if (urb->actual_length == len) + dvb_dmx_swfilter(demux, urb->transfer_buffer, len); + else if (urb->actual_length == len - 4) { + int offset; + u8 *buf = urb->transfer_buffer; + + /* + * The packet size is 512, + * last packet contains 456 bytes tsp data + */ + for (offset = 456; offset < len; offset += 512) { + if (!strncmp(buf + offset, "DVHS", 4)) { + dvb_dmx_swfilter(demux, buf, offset); + if (len > offset + 52 + 4) { + /*16 bytes trailer + 36 bytes padding */ + buf += offset + 52; + len -= offset + 52 + 4; + dvb_dmx_swfilter(demux, buf, len); + } + break; + } + } + } + +resend: + ret = usb_submit_urb(urb, GFP_ATOMIC); + if (ret) + log(" usb_submit_urb failed: error %d", ret); +} + +static int dvb_urb_init(struct pd_dvb_adapter *pd_dvb) +{ + if (pd_dvb->urb_array[0]) + return 0; + + alloc_bulk_urbs_generic(pd_dvb->urb_array, DVB_SBUF_NUM, + pd_dvb->pd_device->udev, pd_dvb->ep_addr, + DVB_URB_BUF_SIZE, GFP_KERNEL, + dvb_urb_irq, pd_dvb); + return 0; +} + +static void dvb_urb_cleanup(struct pd_dvb_adapter *pd_dvb) +{ + free_all_urb_generic(pd_dvb->urb_array, DVB_SBUF_NUM); +} + +static s32 dvb_start_streaming(struct pd_dvb_adapter *pd_dvb) +{ + struct poseidon *pd = pd_dvb->pd_device; + int ret = 0; + + if (pd->state & POSEIDON_STATE_DISCONNECT) + return -ENODEV; + + mutex_lock(&pd->lock); + if (!pd_dvb->is_streaming) { + s32 i, cmd_status = 0; + /* + * Once upon a time, there was a difficult bug lying here. + * ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status); + */ + + ret = send_set_req(pd, PLAY_SERVICE, 1, &cmd_status); + if (ret | cmd_status) + goto out; + + ret = dvb_urb_init(pd_dvb); + if (ret < 0) + goto out; + + pd_dvb->is_streaming = 1; + for (i = 0; i < DVB_SBUF_NUM; i++) { + ret = usb_submit_urb(pd_dvb->urb_array[i], + GFP_KERNEL); + if (ret) { + log(" submit urb error %d", ret); + goto out; + } + } + } +out: + mutex_unlock(&pd->lock); + return ret; +} + +void dvb_stop_streaming(struct pd_dvb_adapter *pd_dvb) +{ + struct poseidon *pd = pd_dvb->pd_device; + + mutex_lock(&pd->lock); + if (pd_dvb->is_streaming) { + s32 i, ret, cmd_status = 0; + + pd_dvb->is_streaming = 0; + + for (i = 0; i < DVB_SBUF_NUM; i++) + if (pd_dvb->urb_array[i]) + usb_kill_urb(pd_dvb->urb_array[i]); + + ret = send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP, + &cmd_status); + if (ret | cmd_status) + log("error"); + } + mutex_unlock(&pd->lock); +} + +static int pd_start_feed(struct dvb_demux_feed *feed) +{ + struct pd_dvb_adapter *pd_dvb = feed->demux->priv; + int ret = 0; + + if (!pd_dvb) + return -1; + if (atomic_inc_return(&pd_dvb->active_feed) == 1) + ret = dvb_start_streaming(pd_dvb); + return ret; +} + +static int pd_stop_feed(struct dvb_demux_feed *feed) +{ + struct pd_dvb_adapter *pd_dvb = feed->demux->priv; + + if (!pd_dvb) + return -1; + if (atomic_dec_and_test(&pd_dvb->active_feed)) + dvb_stop_streaming(pd_dvb); + return 0; +} + +DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); +int pd_dvb_usb_device_init(struct poseidon *pd) +{ + struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; + struct dvb_demux *dvbdemux; + int ret = 0; + + pd_dvb->ep_addr = 0x82; + atomic_set(&pd_dvb->users, 0); + atomic_set(&pd_dvb->active_feed, 0); + pd_dvb->pd_device = pd; + + ret = dvb_register_adapter(&pd_dvb->dvb_adap, + "Poseidon dvbt adapter", + THIS_MODULE, + NULL /* for hibernation correctly*/, + adapter_nr); + if (ret < 0) + goto error1; + + /* register frontend */ + pd_dvb->dvb_fe.demodulator_priv = pd; + memcpy(&pd_dvb->dvb_fe.ops, &poseidon_frontend_ops, + sizeof(struct dvb_frontend_ops)); + ret = dvb_register_frontend(&pd_dvb->dvb_adap, &pd_dvb->dvb_fe); + if (ret < 0) + goto error2; + + /* register demux device */ + dvbdemux = &pd_dvb->demux; + dvbdemux->dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING; + dvbdemux->priv = pd_dvb; + dvbdemux->feednum = dvbdemux->filternum = 64; + dvbdemux->start_feed = pd_start_feed; + dvbdemux->stop_feed = pd_stop_feed; + dvbdemux->write_to_decoder = NULL; + + ret = dvb_dmx_init(dvbdemux); + if (ret < 0) + goto error3; + + pd_dvb->dmxdev.filternum = pd_dvb->demux.filternum; + pd_dvb->dmxdev.demux = &pd_dvb->demux.dmx; + pd_dvb->dmxdev.capabilities = 0; + + ret = dvb_dmxdev_init(&pd_dvb->dmxdev, &pd_dvb->dvb_adap); + if (ret < 0) + goto error3; + return 0; + +error3: + dvb_unregister_frontend(&pd_dvb->dvb_fe); +error2: + dvb_unregister_adapter(&pd_dvb->dvb_adap); +error1: + return ret; +} + +void pd_dvb_usb_device_exit(struct poseidon *pd) +{ + struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; + + while (atomic_read(&pd_dvb->users) != 0 + || atomic_read(&pd_dvb->active_feed) != 0) { + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ); + } + dvb_dmxdev_release(&pd_dvb->dmxdev); + dvb_unregister_frontend(&pd_dvb->dvb_fe); + dvb_unregister_adapter(&pd_dvb->dvb_adap); + pd_dvb_usb_device_cleanup(pd); +} + +void pd_dvb_usb_device_cleanup(struct poseidon *pd) +{ + struct pd_dvb_adapter *pd_dvb = &pd->dvb_data; + + dvb_urb_cleanup(pd_dvb); +} + +int pd_dvb_get_adapter_num(struct pd_dvb_adapter *pd_dvb) +{ + return pd_dvb->dvb_adap.num; +} diff --git a/drivers/staging/media/tlg2300/pd-main.c b/drivers/staging/media/tlg2300/pd-main.c new file mode 100644 index 000000000000..b31f4791b8ff --- /dev/null +++ b/drivers/staging/media/tlg2300/pd-main.c @@ -0,0 +1,553 @@ +/* + * device driver for Telegent tlg2300 based TV cards + * + * Author : + * Kang Yong <kangyong@telegent.com> + * Zhang Xiaobing <xbzhang@telegent.com> + * Huang Shijie <zyziii@telegent.com> or <shijie8@gmail.com> + * + * (c) 2009 Telegent Systems + * (c) 2010 Telegent Systems + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/kref.h> +#include <linux/suspend.h> +#include <linux/usb/quirks.h> +#include <linux/ctype.h> +#include <linux/string.h> +#include <linux/types.h> +#include <linux/firmware.h> + +#include "vendorcmds.h" +#include "pd-common.h" + +#define VENDOR_ID 0x1B24 +#define PRODUCT_ID 0x4001 +static struct usb_device_id id_table[] = { + { USB_DEVICE_AND_INTERFACE_INFO(VENDOR_ID, PRODUCT_ID, 255, 1, 0) }, + { USB_DEVICE_AND_INTERFACE_INFO(VENDOR_ID, PRODUCT_ID, 255, 1, 1) }, + { }, +}; +MODULE_DEVICE_TABLE(usb, id_table); + +int debug_mode; +module_param(debug_mode, int, 0644); +MODULE_PARM_DESC(debug_mode, "0 = disable, 1 = enable, 2 = verbose"); + +#define TLG2300_FIRMWARE "tlg2300_firmware.bin" +static const char *firmware_name = TLG2300_FIRMWARE; +static LIST_HEAD(pd_device_list); + +/* + * send set request to USB firmware. + */ +s32 send_set_req(struct poseidon *pd, u8 cmdid, s32 param, s32 *cmd_status) +{ + s32 ret; + s8 data[32] = {}; + u16 lower_16, upper_16; + + if (pd->state & POSEIDON_STATE_DISCONNECT) + return -ENODEV; + + mdelay(30); + + if (param == 0) { + upper_16 = lower_16 = 0; + } else { + /* send 32 bit param as two 16 bit param,little endian */ + lower_16 = (unsigned short)(param & 0xffff); + upper_16 = (unsigned short)((param >> 16) & 0xffff); + } + ret = usb_control_msg(pd->udev, + usb_rcvctrlpipe(pd->udev, 0), + REQ_SET_CMD | cmdid, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + lower_16, + upper_16, + &data, + sizeof(*cmd_status), + USB_CTRL_GET_TIMEOUT); + + if (!ret) { + return -ENXIO; + } else { + /* 1st 4 bytes into cmd_status */ + memcpy((char *)cmd_status, &(data[0]), sizeof(*cmd_status)); + } + return 0; +} + +/* + * send get request to Poseidon firmware. + */ +s32 send_get_req(struct poseidon *pd, u8 cmdid, s32 param, + void *buf, s32 *cmd_status, s32 datalen) +{ + s32 ret; + s8 data[128] = {}; + u16 lower_16, upper_16; + + if (pd->state & POSEIDON_STATE_DISCONNECT) + return -ENODEV; + + mdelay(30); + if (param == 0) { + upper_16 = lower_16 = 0; + } else { + /*send 32 bit param as two 16 bit param, little endian */ + lower_16 = (unsigned short)(param & 0xffff); + upper_16 = (unsigned short)((param >> 16) & 0xffff); + } + ret = usb_control_msg(pd->udev, + usb_rcvctrlpipe(pd->udev, 0), + REQ_GET_CMD | cmdid, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + lower_16, + upper_16, + &data, + (datalen + sizeof(*cmd_status)), + USB_CTRL_GET_TIMEOUT); + + if (ret < 0) { + return -ENXIO; + } else { + /* 1st 4 bytes into cmd_status, remaining data into cmd_data */ + memcpy((char *)cmd_status, &data[0], sizeof(*cmd_status)); + memcpy((char *)buf, &data[sizeof(*cmd_status)], datalen); + } + return 0; +} + +static int pm_notifier_block(struct notifier_block *nb, + unsigned long event, void *dummy) +{ + struct poseidon *pd = NULL; + struct list_head *node, *next; + + switch (event) { + case PM_POST_HIBERNATION: + list_for_each_safe(node, next, &pd_device_list) { + struct usb_device *udev; + struct usb_interface *iface; + int rc = 0; + + pd = container_of(node, struct poseidon, device_list); + udev = pd->udev; + iface = pd->interface; + + /* It will cause the system to reload the firmware */ + rc = usb_lock_device_for_reset(udev, iface); + if (rc >= 0) { + usb_reset_device(udev); + usb_unlock_device(udev); + } + } + break; + default: + break; + } + log("event :%ld\n", event); + return 0; +} + +static struct notifier_block pm_notifer = { + .notifier_call = pm_notifier_block, +}; + +int set_tuner_mode(struct poseidon *pd, unsigned char mode) +{ + s32 ret, cmd_status; + + if (pd->state & POSEIDON_STATE_DISCONNECT) + return -ENODEV; + + ret = send_set_req(pd, TUNE_MODE_SELECT, mode, &cmd_status); + if (ret || cmd_status) + return -ENXIO; + return 0; +} + +void poseidon_delete(struct kref *kref) +{ + struct poseidon *pd = container_of(kref, struct poseidon, kref); + + if (!pd) + return; + list_del_init(&pd->device_list); + + pd_dvb_usb_device_cleanup(pd); + /* clean_audio_data(&pd->audio_data);*/ + + if (pd->udev) { + usb_put_dev(pd->udev); + pd->udev = NULL; + } + if (pd->interface) { + usb_put_intf(pd->interface); + pd->interface = NULL; + } + kfree(pd); + log(); +} + +static int firmware_download(struct usb_device *udev) +{ + int ret = 0, actual_length; + const struct firmware *fw = NULL; + void *fwbuf = NULL; + size_t fwlength = 0, offset; + size_t max_packet_size; + + ret = request_firmware(&fw, firmware_name, &udev->dev); + if (ret) { + log("download err : %d", ret); + return ret; + } + + fwlength = fw->size; + + fwbuf = kmemdup(fw->data, fwlength, GFP_KERNEL); + if (!fwbuf) { + ret = -ENOMEM; + goto out; + } + + max_packet_size = le16_to_cpu(udev->ep_out[0x1]->desc.wMaxPacketSize); + log("\t\t download size : %d", (int)max_packet_size); + + for (offset = 0; offset < fwlength; offset += max_packet_size) { + actual_length = 0; + ret = usb_bulk_msg(udev, + usb_sndbulkpipe(udev, 0x01), /* ep 1 */ + fwbuf + offset, + min(max_packet_size, fwlength - offset), + &actual_length, + HZ * 10); + if (ret) + break; + } + kfree(fwbuf); +out: + release_firmware(fw); + return ret; +} + +static inline struct poseidon *get_pd(struct usb_interface *intf) +{ + return usb_get_intfdata(intf); +} + +#ifdef CONFIG_PM +/* one-to-one map : poseidon{} <----> usb_device{}'s port */ +static inline void set_map_flags(struct poseidon *pd, struct usb_device *udev) +{ + pd->portnum = udev->portnum; +} + +static inline int get_autopm_ref(struct poseidon *pd) +{ + return pd->video_data.users + pd->vbi_data.users + pd->audio.users + + atomic_read(&pd->dvb_data.users) + + !list_empty(&pd->radio_data.fm_dev.fh_list); +} + +/* fixup something for poseidon */ +static inline struct poseidon *fixup(struct poseidon *pd) +{ + int count; + + /* old udev and interface have gone, so put back reference . */ + count = get_autopm_ref(pd); + log("count : %d, ref count : %d", count, get_pm_count(pd)); + while (count--) + usb_autopm_put_interface(pd->interface); + /*usb_autopm_set_interface(pd->interface); */ + + usb_put_dev(pd->udev); + usb_put_intf(pd->interface); + log("event : %d\n", pd->msg.event); + return pd; +} + +static struct poseidon *find_old_poseidon(struct usb_device *udev) +{ + struct poseidon *pd; + + list_for_each_entry(pd, &pd_device_list, device_list) { + if (pd->portnum == udev->portnum && in_hibernation(pd)) + return fixup(pd); + } + return NULL; +} + +/* Is the card working now ? */ +static inline int is_working(struct poseidon *pd) +{ + return get_pm_count(pd) > 0; +} + +static int poseidon_suspend(struct usb_interface *intf, pm_message_t msg) +{ + struct poseidon *pd = get_pd(intf); + + if (!pd) + return 0; + if (!is_working(pd)) { + if (get_pm_count(pd) <= 0 && !in_hibernation(pd)) { + pd->msg.event = PM_EVENT_AUTO_SUSPEND; + pd->pm_resume = NULL; /* a good guard */ + printk(KERN_DEBUG "TLG2300 auto suspend\n"); + } + return 0; + } + pd->msg = msg; /* save it here */ + logpm(pd); + return pd->pm_suspend ? pd->pm_suspend(pd) : 0; +} + +static int poseidon_resume(struct usb_interface *intf) +{ + struct poseidon *pd = get_pd(intf); + + if (!pd) + return 0; + printk(KERN_DEBUG "TLG2300 resume\n"); + + if (!is_working(pd)) { + if (PM_EVENT_AUTO_SUSPEND == pd->msg.event) + pd->msg = PMSG_ON; + return 0; + } + if (in_hibernation(pd)) { + logpm(pd); + return 0; + } + logpm(pd); + return pd->pm_resume ? pd->pm_resume(pd) : 0; +} + +static void hibernation_resume(struct work_struct *w) +{ + struct poseidon *pd = container_of(w, struct poseidon, pm_work); + int count; + + pd->msg.event = 0; /* clear it here */ + pd->state &= ~POSEIDON_STATE_DISCONNECT; + + /* set the new interface's reference */ + count = get_autopm_ref(pd); + while (count--) + usb_autopm_get_interface(pd->interface); + + /* resume the context */ + logpm(pd); + if (pd->pm_resume) + pd->pm_resume(pd); +} +#else /* CONFIG_PM is not enabled: */ +static inline struct poseidon *find_old_poseidon(struct usb_device *udev) +{ + return NULL; +} + +static inline void set_map_flags(struct poseidon *pd, struct usb_device *udev) +{ +} +#endif + +static int check_firmware(struct usb_device *udev) +{ + void *buf; + int ret; + struct cmd_firmware_vers_s *cmd_firm; + + buf = kzalloc(sizeof(*cmd_firm) + sizeof(u32), GFP_KERNEL); + if (!buf) + return -ENOMEM; + ret = usb_control_msg(udev, + usb_rcvctrlpipe(udev, 0), + REQ_GET_CMD | GET_FW_ID, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, + 0, + buf, + sizeof(*cmd_firm) + sizeof(u32), + USB_CTRL_GET_TIMEOUT); + kfree(buf); + + if (ret < 0) + return firmware_download(udev); + return 0; +} + +static int poseidon_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(interface); + struct poseidon *pd = NULL; + int ret = 0; + int new_one = 0; + + /* download firmware */ + ret = check_firmware(udev); + if (ret) + return ret; + + /* Do I recovery from the hibernate ? */ + pd = find_old_poseidon(udev); + if (!pd) { + pd = kzalloc(sizeof(*pd), GFP_KERNEL); + if (!pd) + return -ENOMEM; + kref_init(&pd->kref); + set_map_flags(pd, udev); + new_one = 1; + } + + pd->udev = usb_get_dev(udev); + pd->interface = usb_get_intf(interface); + usb_set_intfdata(interface, pd); + + if (new_one) { + logpm(pd); + mutex_init(&pd->lock); + + /* register v4l2 device */ + ret = v4l2_device_register(&interface->dev, &pd->v4l2_dev); + if (ret) + goto err_v4l2; + + /* register devices in directory /dev */ + ret = pd_video_init(pd); + if (ret) + goto err_video; + ret = poseidon_audio_init(pd); + if (ret) + goto err_audio; + ret = poseidon_fm_init(pd); + if (ret) + goto err_fm; + ret = pd_dvb_usb_device_init(pd); + if (ret) + goto err_dvb; + + INIT_LIST_HEAD(&pd->device_list); + list_add_tail(&pd->device_list, &pd_device_list); + } + + device_init_wakeup(&udev->dev, 1); +#ifdef CONFIG_PM + pm_runtime_set_autosuspend_delay(&pd->udev->dev, + 1000 * PM_SUSPEND_DELAY); + usb_enable_autosuspend(pd->udev); + + if (in_hibernation(pd)) { + INIT_WORK(&pd->pm_work, hibernation_resume); + schedule_work(&pd->pm_work); + } +#endif + return 0; +err_dvb: + poseidon_fm_exit(pd); +err_fm: + poseidon_audio_free(pd); +err_audio: + pd_video_exit(pd); +err_video: + v4l2_device_unregister(&pd->v4l2_dev); +err_v4l2: + usb_put_intf(pd->interface); + usb_put_dev(pd->udev); + kfree(pd); + return ret; +} + +static void poseidon_disconnect(struct usb_interface *interface) +{ + struct poseidon *pd = get_pd(interface); + + if (!pd) + return; + logpm(pd); + if (in_hibernation(pd)) + return; + + mutex_lock(&pd->lock); + pd->state |= POSEIDON_STATE_DISCONNECT; + mutex_unlock(&pd->lock); + + /* stop urb transferring */ + stop_all_video_stream(pd); + dvb_stop_streaming(&pd->dvb_data); + + /*unregister v4l2 device */ + v4l2_device_unregister(&pd->v4l2_dev); + + pd_dvb_usb_device_exit(pd); + poseidon_fm_exit(pd); + + poseidon_audio_free(pd); + pd_video_exit(pd); + + usb_set_intfdata(interface, NULL); + kref_put(&pd->kref, poseidon_delete); +} + +static struct usb_driver poseidon_driver = { + .name = "poseidon", + .probe = poseidon_probe, + .disconnect = poseidon_disconnect, + .id_table = id_table, +#ifdef CONFIG_PM + .suspend = poseidon_suspend, + .resume = poseidon_resume, +#endif + .supports_autosuspend = 1, +}; + +static int __init poseidon_init(void) +{ + int ret; + + ret = usb_register(&poseidon_driver); + if (ret) + return ret; + register_pm_notifier(&pm_notifer); + return ret; +} + +static void __exit poseidon_exit(void) +{ + log(); + unregister_pm_notifier(&pm_notifer); + usb_deregister(&poseidon_driver); +} + +module_init(poseidon_init); +module_exit(poseidon_exit); + +MODULE_AUTHOR("Telegent Systems"); +MODULE_DESCRIPTION("For tlg2300-based USB device"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("0.0.2"); +MODULE_FIRMWARE(TLG2300_FIRMWARE); diff --git a/drivers/staging/media/tlg2300/pd-radio.c b/drivers/staging/media/tlg2300/pd-radio.c new file mode 100644 index 000000000000..b391194a840c --- /dev/null +++ b/drivers/staging/media/tlg2300/pd-radio.c @@ -0,0 +1,339 @@ +#include <linux/init.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/bitmap.h> +#include <linux/usb.h> +#include <linux/i2c.h> +#include <media/v4l2-dev.h> +#include <linux/mm.h> +#include <linux/mutex.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-event.h> +#include <media/v4l2-fh.h> +#include <linux/sched.h> + +#include "pd-common.h" +#include "vendorcmds.h" + +static int set_frequency(struct poseidon *p, __u32 frequency); +static int poseidon_fm_close(struct file *filp); +static int poseidon_fm_open(struct file *filp); + +#define TUNER_FREQ_MIN_FM 76000000U +#define TUNER_FREQ_MAX_FM 108000000U + +#define MAX_PREEMPHASIS (V4L2_PREEMPHASIS_75_uS + 1) +static int preemphasis[MAX_PREEMPHASIS] = { + TLG_TUNE_ASTD_NONE, /* V4L2_PREEMPHASIS_DISABLED */ + TLG_TUNE_ASTD_FM_EUR, /* V4L2_PREEMPHASIS_50_uS */ + TLG_TUNE_ASTD_FM_US, /* V4L2_PREEMPHASIS_75_uS */ +}; + +static int poseidon_check_mode_radio(struct poseidon *p) +{ + int ret; + u32 status; + + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ/2); + ret = usb_set_interface(p->udev, 0, BULK_ALTERNATE_IFACE); + if (ret < 0) + goto out; + + ret = set_tuner_mode(p, TLG_MODE_FM_RADIO); + if (ret != 0) + goto out; + + ret = send_set_req(p, SGNL_SRC_SEL, TLG_SIG_SRC_ANTENNA, &status); + ret = send_set_req(p, TUNER_AUD_ANA_STD, + p->radio_data.pre_emphasis, &status); + ret |= send_set_req(p, TUNER_AUD_MODE, + TLG_TUNE_TVAUDIO_MODE_STEREO, &status); + ret |= send_set_req(p, AUDIO_SAMPLE_RATE_SEL, + ATV_AUDIO_RATE_48K, &status); + ret |= send_set_req(p, TUNE_FREQ_SELECT, TUNER_FREQ_MIN_FM, &status); +out: + return ret; +} + +#ifdef CONFIG_PM +static int pm_fm_suspend(struct poseidon *p) +{ + logpm(p); + pm_alsa_suspend(p); + usb_set_interface(p->udev, 0, 0); + msleep(300); + return 0; +} + +static int pm_fm_resume(struct poseidon *p) +{ + logpm(p); + poseidon_check_mode_radio(p); + set_frequency(p, p->radio_data.fm_freq); + pm_alsa_resume(p); + return 0; +} +#endif + +static int poseidon_fm_open(struct file *filp) +{ + struct poseidon *p = video_drvdata(filp); + int ret = 0; + + mutex_lock(&p->lock); + if (p->state & POSEIDON_STATE_DISCONNECT) { + ret = -ENODEV; + goto out; + } + + if (p->state && !(p->state & POSEIDON_STATE_FM)) { + ret = -EBUSY; + goto out; + } + ret = v4l2_fh_open(filp); + if (ret) + goto out; + + usb_autopm_get_interface(p->interface); + if (0 == p->state) { + struct video_device *vfd = &p->radio_data.fm_dev; + + /* default pre-emphasis */ + if (p->radio_data.pre_emphasis == 0) + p->radio_data.pre_emphasis = TLG_TUNE_ASTD_FM_EUR; + set_debug_mode(vfd, debug_mode); + + ret = poseidon_check_mode_radio(p); + if (ret < 0) { + usb_autopm_put_interface(p->interface); + goto out; + } + p->state |= POSEIDON_STATE_FM; + } + kref_get(&p->kref); +out: + mutex_unlock(&p->lock); + return ret; +} + +static int poseidon_fm_close(struct file *filp) +{ + struct poseidon *p = video_drvdata(filp); + struct radio_data *fm = &p->radio_data; + uint32_t status; + + mutex_lock(&p->lock); + if (v4l2_fh_is_singular_file(filp)) + p->state &= ~POSEIDON_STATE_FM; + + if (fm->is_radio_streaming && filp == p->file_for_stream) { + fm->is_radio_streaming = 0; + send_set_req(p, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP, &status); + } + usb_autopm_put_interface(p->interface); + mutex_unlock(&p->lock); + + kref_put(&p->kref, poseidon_delete); + return v4l2_fh_release(filp); +} + +static int vidioc_querycap(struct file *file, void *priv, + struct v4l2_capability *v) +{ + struct poseidon *p = video_drvdata(file); + + strlcpy(v->driver, "tele-radio", sizeof(v->driver)); + strlcpy(v->card, "Telegent Poseidon", sizeof(v->card)); + usb_make_path(p->udev, v->bus_info, sizeof(v->bus_info)); + v->device_caps = V4L2_CAP_TUNER | V4L2_CAP_RADIO; + /* Report all capabilities of the USB device */ + v->capabilities = v->device_caps | V4L2_CAP_DEVICE_CAPS | + V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VBI_CAPTURE | + V4L2_CAP_AUDIO | V4L2_CAP_STREAMING | + V4L2_CAP_READWRITE; + return 0; +} + +static const struct v4l2_file_operations poseidon_fm_fops = { + .owner = THIS_MODULE, + .open = poseidon_fm_open, + .release = poseidon_fm_close, + .poll = v4l2_ctrl_poll, + .unlocked_ioctl = video_ioctl2, +}; + +static int tlg_fm_vidioc_g_tuner(struct file *file, void *priv, + struct v4l2_tuner *vt) +{ + struct poseidon *p = video_drvdata(file); + struct tuner_fm_sig_stat_s fm_stat = {}; + int ret, status, count = 5; + + if (vt->index != 0) + return -EINVAL; + + vt->type = V4L2_TUNER_RADIO; + vt->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW; + vt->rangelow = TUNER_FREQ_MIN_FM * 2 / 125; + vt->rangehigh = TUNER_FREQ_MAX_FM * 2 / 125; + vt->rxsubchans = V4L2_TUNER_SUB_STEREO; + vt->audmode = V4L2_TUNER_MODE_STEREO; + vt->signal = 0; + vt->afc = 0; + strlcpy(vt->name, "Radio", sizeof(vt->name)); + + mutex_lock(&p->lock); + ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO, + &fm_stat, &status, sizeof(fm_stat)); + + while (fm_stat.sig_lock_busy && count-- && !ret) { + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ); + + ret = send_get_req(p, TUNER_STATUS, TLG_MODE_FM_RADIO, + &fm_stat, &status, sizeof(fm_stat)); + } + mutex_unlock(&p->lock); + + if (ret || status) { + vt->signal = 0; + } else if ((fm_stat.sig_present || fm_stat.sig_locked) + && fm_stat.sig_strength == 0) { + vt->signal = 0xffff; + } else + vt->signal = (fm_stat.sig_strength * 255 / 10) << 8; + + return 0; +} + +static int fm_get_freq(struct file *file, void *priv, + struct v4l2_frequency *argp) +{ + struct poseidon *p = video_drvdata(file); + + if (argp->tuner) + return -EINVAL; + argp->frequency = p->radio_data.fm_freq; + return 0; +} + +static int set_frequency(struct poseidon *p, __u32 frequency) +{ + __u32 freq ; + int ret, status; + + mutex_lock(&p->lock); + + ret = send_set_req(p, TUNER_AUD_ANA_STD, + p->radio_data.pre_emphasis, &status); + + freq = (frequency * 125) / 2; /* Hz */ + freq = clamp(freq, TUNER_FREQ_MIN_FM, TUNER_FREQ_MAX_FM); + + ret = send_set_req(p, TUNE_FREQ_SELECT, freq, &status); + if (ret < 0) + goto error ; + ret = send_set_req(p, TAKE_REQUEST, 0, &status); + + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ/4); + if (!p->radio_data.is_radio_streaming) { + ret = send_set_req(p, TAKE_REQUEST, 0, &status); + ret = send_set_req(p, PLAY_SERVICE, + TLG_TUNE_PLAY_SVC_START, &status); + p->radio_data.is_radio_streaming = 1; + } + p->radio_data.fm_freq = freq * 2 / 125; +error: + mutex_unlock(&p->lock); + return ret; +} + +static int fm_set_freq(struct file *file, void *priv, + const struct v4l2_frequency *argp) +{ + struct poseidon *p = video_drvdata(file); + + if (argp->tuner) + return -EINVAL; + p->file_for_stream = file; +#ifdef CONFIG_PM + p->pm_suspend = pm_fm_suspend; + p->pm_resume = pm_fm_resume; +#endif + return set_frequency(p, argp->frequency); +} + +static int tlg_fm_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct poseidon *p = container_of(ctrl->handler, struct poseidon, + radio_data.ctrl_handler); + int pre_emphasis; + u32 status; + + switch (ctrl->id) { + case V4L2_CID_TUNE_PREEMPHASIS: + pre_emphasis = preemphasis[ctrl->val]; + send_set_req(p, TUNER_AUD_ANA_STD, pre_emphasis, &status); + p->radio_data.pre_emphasis = pre_emphasis; + return 0; + } + return -EINVAL; +} + +static int vidioc_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt) +{ + return vt->index > 0 ? -EINVAL : 0; +} + +static const struct v4l2_ctrl_ops tlg_fm_ctrl_ops = { + .s_ctrl = tlg_fm_s_ctrl, +}; + +static const struct v4l2_ioctl_ops poseidon_fm_ioctl_ops = { + .vidioc_querycap = vidioc_querycap, + .vidioc_s_tuner = vidioc_s_tuner, + .vidioc_g_tuner = tlg_fm_vidioc_g_tuner, + .vidioc_g_frequency = fm_get_freq, + .vidioc_s_frequency = fm_set_freq, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +static struct video_device poseidon_fm_template = { + .name = "Telegent-Radio", + .fops = &poseidon_fm_fops, + .minor = -1, + .release = video_device_release_empty, + .ioctl_ops = &poseidon_fm_ioctl_ops, +}; + +int poseidon_fm_init(struct poseidon *p) +{ + struct video_device *vfd = &p->radio_data.fm_dev; + struct v4l2_ctrl_handler *hdl = &p->radio_data.ctrl_handler; + + *vfd = poseidon_fm_template; + + set_frequency(p, TUNER_FREQ_MIN_FM); + v4l2_ctrl_handler_init(hdl, 1); + v4l2_ctrl_new_std_menu(hdl, &tlg_fm_ctrl_ops, V4L2_CID_TUNE_PREEMPHASIS, + V4L2_PREEMPHASIS_75_uS, 0, V4L2_PREEMPHASIS_50_uS); + if (hdl->error) { + v4l2_ctrl_handler_free(hdl); + return hdl->error; + } + vfd->v4l2_dev = &p->v4l2_dev; + vfd->ctrl_handler = hdl; + video_set_drvdata(vfd, p); + return video_register_device(vfd, VFL_TYPE_RADIO, -1); +} + +int poseidon_fm_exit(struct poseidon *p) +{ + video_unregister_device(&p->radio_data.fm_dev); + v4l2_ctrl_handler_free(&p->radio_data.ctrl_handler); + return 0; +} diff --git a/drivers/staging/media/tlg2300/pd-video.c b/drivers/staging/media/tlg2300/pd-video.c new file mode 100644 index 000000000000..8cd7f02fcf9f --- /dev/null +++ b/drivers/staging/media/tlg2300/pd-video.c @@ -0,0 +1,1570 @@ +#include <linux/fs.h> +#include <linux/vmalloc.h> +#include <linux/videodev2.h> +#include <linux/usb.h> +#include <linux/mm.h> +#include <linux/sched.h> +#include <linux/slab.h> + +#include <media/v4l2-ioctl.h> +#include <media/v4l2-dev.h> +#include <media/v4l2-ctrls.h> + +#include "pd-common.h" +#include "vendorcmds.h" + +#ifdef CONFIG_PM +static int pm_video_suspend(struct poseidon *pd); +static int pm_video_resume(struct poseidon *pd); +#endif +static void iso_bubble_handler(struct work_struct *w); + +static int usb_transfer_mode; +module_param(usb_transfer_mode, int, 0644); +MODULE_PARM_DESC(usb_transfer_mode, "0 = Bulk, 1 = Isochronous"); + +static const struct poseidon_format poseidon_formats[] = { + { "YUV 422", V4L2_PIX_FMT_YUYV, 16, 0}, + { "RGB565", V4L2_PIX_FMT_RGB565, 16, 0}, +}; + +static const struct poseidon_tvnorm poseidon_tvnorms[] = { + { V4L2_STD_PAL_D, "PAL-D", TLG_TUNE_VSTD_PAL_D }, + { V4L2_STD_PAL_B, "PAL-B", TLG_TUNE_VSTD_PAL_B }, + { V4L2_STD_PAL_G, "PAL-G", TLG_TUNE_VSTD_PAL_G }, + { V4L2_STD_PAL_H, "PAL-H", TLG_TUNE_VSTD_PAL_H }, + { V4L2_STD_PAL_I, "PAL-I", TLG_TUNE_VSTD_PAL_I }, + { V4L2_STD_PAL_M, "PAL-M", TLG_TUNE_VSTD_PAL_M }, + { V4L2_STD_PAL_N, "PAL-N", TLG_TUNE_VSTD_PAL_N_COMBO }, + { V4L2_STD_PAL_Nc, "PAL-Nc", TLG_TUNE_VSTD_PAL_N_COMBO }, + { V4L2_STD_NTSC_M, "NTSC-M", TLG_TUNE_VSTD_NTSC_M }, + { V4L2_STD_NTSC_M_JP, "NTSC-JP", TLG_TUNE_VSTD_NTSC_M_J }, + { V4L2_STD_SECAM_B, "SECAM-B", TLG_TUNE_VSTD_SECAM_B }, + { V4L2_STD_SECAM_D, "SECAM-D", TLG_TUNE_VSTD_SECAM_D }, + { V4L2_STD_SECAM_G, "SECAM-G", TLG_TUNE_VSTD_SECAM_G }, + { V4L2_STD_SECAM_H, "SECAM-H", TLG_TUNE_VSTD_SECAM_H }, + { V4L2_STD_SECAM_K, "SECAM-K", TLG_TUNE_VSTD_SECAM_K }, + { V4L2_STD_SECAM_K1, "SECAM-K1", TLG_TUNE_VSTD_SECAM_K1 }, + { V4L2_STD_SECAM_L, "SECAM-L", TLG_TUNE_VSTD_SECAM_L }, + { V4L2_STD_SECAM_LC, "SECAM-LC", TLG_TUNE_VSTD_SECAM_L1 }, +}; +static const unsigned int POSEIDON_TVNORMS = ARRAY_SIZE(poseidon_tvnorms); + +struct pd_audio_mode { + u32 tlg_audio_mode; + u32 v4l2_audio_sub; + u32 v4l2_audio_mode; +}; + +static const struct pd_audio_mode pd_audio_modes[] = { + { TLG_TUNE_TVAUDIO_MODE_MONO, V4L2_TUNER_SUB_MONO, + V4L2_TUNER_MODE_MONO }, + { TLG_TUNE_TVAUDIO_MODE_STEREO, V4L2_TUNER_SUB_STEREO, + V4L2_TUNER_MODE_STEREO }, + { TLG_TUNE_TVAUDIO_MODE_LANG_A, V4L2_TUNER_SUB_LANG1, + V4L2_TUNER_MODE_LANG1 }, + { TLG_TUNE_TVAUDIO_MODE_LANG_B, V4L2_TUNER_SUB_LANG2, + V4L2_TUNER_MODE_LANG2 }, + { TLG_TUNE_TVAUDIO_MODE_LANG_C, V4L2_TUNER_SUB_LANG1, + V4L2_TUNER_MODE_LANG1_LANG2 } +}; +static const unsigned int POSEIDON_AUDIOMODS = ARRAY_SIZE(pd_audio_modes); + +struct pd_input { + char *name; + uint32_t tlg_src; +}; + +static const struct pd_input pd_inputs[] = { + { "TV Antenna", TLG_SIG_SRC_ANTENNA }, + { "TV Cable", TLG_SIG_SRC_CABLE }, + { "TV SVideo", TLG_SIG_SRC_SVIDEO }, + { "TV Composite", TLG_SIG_SRC_COMPOSITE } +}; +static const unsigned int POSEIDON_INPUTS = ARRAY_SIZE(pd_inputs); + +struct video_std_to_audio_std { + v4l2_std_id video_std; + int audio_std; +}; + +static const struct video_std_to_audio_std video_to_audio_map[] = { + /* country : { 27, 32, 33, 34, 36, 44, 45, 46, 47, 48, 64, + 65, 86, 351, 352, 353, 354, 358, 372, 852, 972 } */ + { (V4L2_STD_PAL_I | V4L2_STD_PAL_B | V4L2_STD_PAL_D | + V4L2_STD_SECAM_L | V4L2_STD_SECAM_D), TLG_TUNE_ASTD_NICAM }, + + /* country : { 1, 52, 54, 55, 886 } */ + {V4L2_STD_NTSC_M | V4L2_STD_PAL_N | V4L2_STD_PAL_M, TLG_TUNE_ASTD_BTSC}, + + /* country : { 81 } */ + { V4L2_STD_NTSC_M_JP, TLG_TUNE_ASTD_EIAJ }, + + /* other country : TLG_TUNE_ASTD_A2 */ +}; +static const unsigned int map_size = ARRAY_SIZE(video_to_audio_map); + +static int get_audio_std(v4l2_std_id v4l2_std) +{ + int i = 0; + + for (; i < map_size; i++) { + if (v4l2_std & video_to_audio_map[i].video_std) + return video_to_audio_map[i].audio_std; + } + return TLG_TUNE_ASTD_A2; +} + +static int vidioc_querycap(struct file *file, void *fh, + struct v4l2_capability *cap) +{ + struct video_device *vdev = video_devdata(file); + struct poseidon *p = video_get_drvdata(vdev); + + strcpy(cap->driver, "tele-video"); + strcpy(cap->card, "Telegent Poseidon"); + usb_make_path(p->udev, cap->bus_info, sizeof(cap->bus_info)); + cap->device_caps = V4L2_CAP_TUNER | V4L2_CAP_AUDIO | + V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; + if (vdev->vfl_type == VFL_TYPE_VBI) + cap->device_caps |= V4L2_CAP_VBI_CAPTURE; + else + cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; + cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | + V4L2_CAP_RADIO | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE; + return 0; +} + +/*====================================================================*/ +static void init_copy(struct video_data *video, bool index) +{ + struct front_face *front = video->front; + + video->field_count = index; + video->lines_copied = 0; + video->prev_left = 0 ; + video->dst = (char *)videobuf_to_vmalloc(front->curr_frame) + + index * video->lines_size; + video->vbi->copied = 0; /* set it here */ +} + +static bool get_frame(struct front_face *front, int *need_init) +{ + struct videobuf_buffer *vb = front->curr_frame; + + if (vb) + return true; + + spin_lock(&front->queue_lock); + if (!list_empty(&front->active)) { + vb = list_entry(front->active.next, + struct videobuf_buffer, queue); + if (need_init) + *need_init = 1; + front->curr_frame = vb; + list_del_init(&vb->queue); + } + spin_unlock(&front->queue_lock); + + return !!vb; +} + +/* check if the video's buffer is ready */ +static bool get_video_frame(struct front_face *front, struct video_data *video) +{ + int need_init = 0; + bool ret = true; + + ret = get_frame(front, &need_init); + if (ret && need_init) + init_copy(video, 0); + return ret; +} + +static void submit_frame(struct front_face *front) +{ + struct videobuf_buffer *vb = front->curr_frame; + + if (vb == NULL) + return; + + front->curr_frame = NULL; + vb->state = VIDEOBUF_DONE; + vb->field_count++; + v4l2_get_timestamp(&vb->ts); + + wake_up(&vb->done); +} + +/* + * A frame is composed of two fields. If we receive all the two fields, + * call the submit_frame() to submit the whole frame to applications. + */ +static void end_field(struct video_data *video) +{ + if (1 == video->field_count) + submit_frame(video->front); + else + init_copy(video, 1); +} + +static void copy_video_data(struct video_data *video, char *src, + unsigned int count) +{ +#define copy_data(len) \ + do { \ + if (++video->lines_copied > video->lines_per_field) \ + goto overflow; \ + memcpy(video->dst, src, len);\ + video->dst += len + video->lines_size; \ + src += len; \ + count -= len; \ + } while (0) + + while (count && count >= video->lines_size) { + if (video->prev_left) { + copy_data(video->prev_left); + video->prev_left = 0; + continue; + } + copy_data(video->lines_size); + } + if (count && count < video->lines_size) { + memcpy(video->dst, src, count); + + video->prev_left = video->lines_size - count; + video->dst += count; + } + return; + +overflow: + end_field(video); +} + +static void check_trailer(struct video_data *video, char *src, int count) +{ + struct vbi_data *vbi = video->vbi; + int offset; /* trailer's offset */ + char *buf; + + offset = (video->context.pix.sizeimage / 2 + vbi->vbi_size / 2) + - (vbi->copied + video->lines_size * video->lines_copied); + if (video->prev_left) + offset -= (video->lines_size - video->prev_left); + + if (offset > count || offset <= 0) + goto short_package; + + buf = src + offset; + + /* trailer : (VFHS) + U32 + U32 + field_num */ + if (!strncmp(buf, "VFHS", 4)) { + int field_num = *((u32 *)(buf + 12)); + + if ((field_num & 1) ^ video->field_count) { + init_copy(video, video->field_count); + return; + } + copy_video_data(video, src, offset); + } +short_package: + end_field(video); +} + +/* ========== Check this more carefully! =========== */ +static inline void copy_vbi_data(struct vbi_data *vbi, + char *src, unsigned int count) +{ + struct front_face *front = vbi->front; + + if (front && get_frame(front, NULL)) { + char *buf = videobuf_to_vmalloc(front->curr_frame); + + if (vbi->video->field_count) + buf += (vbi->vbi_size / 2); + memcpy(buf + vbi->copied, src, count); + } + vbi->copied += count; +} + +/* + * Copy the normal data (VBI or VIDEO) without the trailer. + * VBI is not interlaced, while VIDEO is interlaced. + */ +static inline void copy_vbi_video_data(struct video_data *video, + char *src, unsigned int count) +{ + struct vbi_data *vbi = video->vbi; + unsigned int vbi_delta = (vbi->vbi_size / 2) - vbi->copied; + + if (vbi_delta >= count) { + copy_vbi_data(vbi, src, count); + } else { + if (vbi_delta) { + copy_vbi_data(vbi, src, vbi_delta); + + /* we receive the two fields of the VBI*/ + if (vbi->front && video->field_count) + submit_frame(vbi->front); + } + copy_video_data(video, src + vbi_delta, count - vbi_delta); + } +} + +static void urb_complete_bulk(struct urb *urb) +{ + struct front_face *front = urb->context; + struct video_data *video = &front->pd->video_data; + char *src = (char *)urb->transfer_buffer; + int count = urb->actual_length; + int ret = 0; + + if (!video->is_streaming || urb->status) { + if (urb->status == -EPROTO) + goto resend_it; + return; + } + if (!get_video_frame(front, video)) + goto resend_it; + + if (count == urb->transfer_buffer_length) + copy_vbi_video_data(video, src, count); + else + check_trailer(video, src, count); + +resend_it: + ret = usb_submit_urb(urb, GFP_ATOMIC); + if (ret) + log(" submit failed: error %d", ret); +} + +/************************* for ISO *********************/ +#define GET_SUCCESS (0) +#define GET_TRAILER (1) +#define GET_TOO_MUCH_BUBBLE (2) +#define GET_NONE (3) +static int get_chunk(int start, struct urb *urb, + int *head, int *tail, int *bubble_err) +{ + struct usb_iso_packet_descriptor *pkt = NULL; + int ret = GET_SUCCESS; + + for (*head = *tail = -1; start < urb->number_of_packets; start++) { + pkt = &urb->iso_frame_desc[start]; + + /* handle the bubble of the Hub */ + if (-EOVERFLOW == pkt->status) { + if (++*bubble_err > urb->number_of_packets / 3) + return GET_TOO_MUCH_BUBBLE; + continue; + } + + /* This is the gap */ + if (pkt->status || pkt->actual_length <= 0 + || pkt->actual_length > ISO_PKT_SIZE) { + if (*head != -1) + break; + continue; + } + + /* a good isochronous packet */ + if (pkt->actual_length == ISO_PKT_SIZE) { + if (*head == -1) + *head = start; + *tail = start; + continue; + } + + /* trailer is here */ + if (pkt->actual_length < ISO_PKT_SIZE) { + if (*head == -1) { + *head = start; + *tail = start; + return GET_TRAILER; + } + break; + } + } + + if (*head == -1 && *tail == -1) + ret = GET_NONE; + return ret; +} + +/* + * |__|------|___|-----|_______| + * ^ ^ + * | | + * gap gap + */ +static void urb_complete_iso(struct urb *urb) +{ + struct front_face *front = urb->context; + struct video_data *video = &front->pd->video_data; + int bubble_err = 0, head = 0, tail = 0; + char *src = (char *)urb->transfer_buffer; + int ret = 0; + + if (!video->is_streaming) + return; + + do { + if (!get_video_frame(front, video)) + goto out; + + switch (get_chunk(head, urb, &head, &tail, &bubble_err)) { + case GET_SUCCESS: + copy_vbi_video_data(video, src + (head * ISO_PKT_SIZE), + (tail - head + 1) * ISO_PKT_SIZE); + break; + case GET_TRAILER: + check_trailer(video, src + (head * ISO_PKT_SIZE), + ISO_PKT_SIZE); + break; + case GET_NONE: + goto out; + case GET_TOO_MUCH_BUBBLE: + log("\t We got too much bubble"); + schedule_work(&video->bubble_work); + return; + } + } while (head = tail + 1, head < urb->number_of_packets); + +out: + ret = usb_submit_urb(urb, GFP_ATOMIC); + if (ret) + log("usb_submit_urb err : %d", ret); +} +/*============================= [ end ] =====================*/ + +static int prepare_iso_urb(struct video_data *video) +{ + struct usb_device *udev = video->pd->udev; + int i; + + if (video->urb_array[0]) + return 0; + + for (i = 0; i < SBUF_NUM; i++) { + struct urb *urb; + void *mem; + int j; + + urb = usb_alloc_urb(PK_PER_URB, GFP_KERNEL); + if (urb == NULL) + goto out; + + video->urb_array[i] = urb; + mem = usb_alloc_coherent(udev, + ISO_PKT_SIZE * PK_PER_URB, + GFP_KERNEL, + &urb->transfer_dma); + + urb->complete = urb_complete_iso; /* handler */ + urb->dev = udev; + urb->context = video->front; + urb->pipe = usb_rcvisocpipe(udev, + video->endpoint_addr); + urb->interval = 1; + urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; + urb->number_of_packets = PK_PER_URB; + urb->transfer_buffer = mem; + urb->transfer_buffer_length = PK_PER_URB * ISO_PKT_SIZE; + + for (j = 0; j < PK_PER_URB; j++) { + urb->iso_frame_desc[j].offset = ISO_PKT_SIZE * j; + urb->iso_frame_desc[j].length = ISO_PKT_SIZE; + } + } + return 0; +out: + for (; i > 0; i--) + ; + return -ENOMEM; +} + +/* return the succeeded number of the allocation */ +int alloc_bulk_urbs_generic(struct urb **urb_array, int num, + struct usb_device *udev, u8 ep_addr, + int buf_size, gfp_t gfp_flags, + usb_complete_t complete_fn, void *context) +{ + int i = 0; + + for (; i < num; i++) { + void *mem; + struct urb *urb = usb_alloc_urb(0, gfp_flags); + if (urb == NULL) + return i; + + mem = usb_alloc_coherent(udev, buf_size, gfp_flags, + &urb->transfer_dma); + if (mem == NULL) { + usb_free_urb(urb); + return i; + } + + usb_fill_bulk_urb(urb, udev, usb_rcvbulkpipe(udev, ep_addr), + mem, buf_size, complete_fn, context); + urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + urb_array[i] = urb; + } + return i; +} + +void free_all_urb_generic(struct urb **urb_array, int num) +{ + int i; + struct urb *urb; + + for (i = 0; i < num; i++) { + urb = urb_array[i]; + if (urb) { + usb_free_coherent(urb->dev, + urb->transfer_buffer_length, + urb->transfer_buffer, + urb->transfer_dma); + usb_free_urb(urb); + urb_array[i] = NULL; + } + } +} + +static int prepare_bulk_urb(struct video_data *video) +{ + if (video->urb_array[0]) + return 0; + + alloc_bulk_urbs_generic(video->urb_array, SBUF_NUM, + video->pd->udev, video->endpoint_addr, + 0x2000, GFP_KERNEL, + urb_complete_bulk, video->front); + return 0; +} + +/* free the URBs */ +static void free_all_urb(struct video_data *video) +{ + free_all_urb_generic(video->urb_array, SBUF_NUM); +} + +static void pd_buf_release(struct videobuf_queue *q, struct videobuf_buffer *vb) +{ + videobuf_vmalloc_free(vb); + vb->state = VIDEOBUF_NEEDS_INIT; +} + +static void pd_buf_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) +{ + struct front_face *front = q->priv_data; + vb->state = VIDEOBUF_QUEUED; + list_add_tail(&vb->queue, &front->active); +} + +static int pd_buf_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb, + enum v4l2_field field) +{ + struct front_face *front = q->priv_data; + int rc; + + switch (front->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + if (VIDEOBUF_NEEDS_INIT == vb->state) { + struct v4l2_pix_format *pix; + + pix = &front->pd->video_data.context.pix; + vb->size = pix->sizeimage; /* real frame size */ + vb->width = pix->width; + vb->height = pix->height; + rc = videobuf_iolock(q, vb, NULL); + if (rc < 0) + return rc; + } + break; + case V4L2_BUF_TYPE_VBI_CAPTURE: + if (VIDEOBUF_NEEDS_INIT == vb->state) { + vb->size = front->pd->vbi_data.vbi_size; + rc = videobuf_iolock(q, vb, NULL); + if (rc < 0) + return rc; + } + break; + default: + return -EINVAL; + } + vb->field = field; + vb->state = VIDEOBUF_PREPARED; + return 0; +} + +static int fire_all_urb(struct video_data *video) +{ + int i, ret; + + video->is_streaming = 1; + + for (i = 0; i < SBUF_NUM; i++) { + ret = usb_submit_urb(video->urb_array[i], GFP_KERNEL); + if (ret) + log("(%d) failed: error %d", i, ret); + } + return ret; +} + +static int start_video_stream(struct poseidon *pd) +{ + struct video_data *video = &pd->video_data; + s32 cmd_status; + + send_set_req(pd, TAKE_REQUEST, 0, &cmd_status); + send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_START, &cmd_status); + + if (pd->cur_transfer_mode) { + prepare_iso_urb(video); + INIT_WORK(&video->bubble_work, iso_bubble_handler); + } else { + /* The bulk mode does not need a bubble handler */ + prepare_bulk_urb(video); + } + fire_all_urb(video); + return 0; +} + +static int pd_buf_setup(struct videobuf_queue *q, unsigned int *count, + unsigned int *size) +{ + struct front_face *front = q->priv_data; + struct poseidon *pd = front->pd; + + switch (front->type) { + default: + return -EINVAL; + case V4L2_BUF_TYPE_VIDEO_CAPTURE: { + struct video_data *video = &pd->video_data; + struct v4l2_pix_format *pix = &video->context.pix; + + *size = PAGE_ALIGN(pix->sizeimage);/* page aligned frame size */ + if (*count < 4) + *count = 4; + if (1) { + /* same in different altersetting */ + video->endpoint_addr = 0x82; + video->vbi = &pd->vbi_data; + video->vbi->video = video; + video->pd = pd; + video->lines_per_field = pix->height / 2; + video->lines_size = pix->width * 2; + video->front = front; + } + return start_video_stream(pd); + } + + case V4L2_BUF_TYPE_VBI_CAPTURE: { + struct vbi_data *vbi = &pd->vbi_data; + + *size = PAGE_ALIGN(vbi->vbi_size); + log("size : %d", *size); + if (*count == 0) + *count = 4; + } + break; + } + return 0; +} + +static struct videobuf_queue_ops pd_video_qops = { + .buf_setup = pd_buf_setup, + .buf_prepare = pd_buf_prepare, + .buf_queue = pd_buf_queue, + .buf_release = pd_buf_release, +}; + +static int vidioc_enum_fmt(struct file *file, void *fh, + struct v4l2_fmtdesc *f) +{ + if (ARRAY_SIZE(poseidon_formats) <= f->index) + return -EINVAL; + f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + f->flags = 0; + f->pixelformat = poseidon_formats[f->index].fourcc; + strcpy(f->description, poseidon_formats[f->index].name); + return 0; +} + +static int vidioc_g_fmt(struct file *file, void *fh, struct v4l2_format *f) +{ + struct front_face *front = fh; + struct poseidon *pd = front->pd; + + f->fmt.pix = pd->video_data.context.pix; + return 0; +} + +/* + * VLC calls VIDIOC_S_STD before VIDIOC_S_FMT, while + * Mplayer calls them in the reverse order. + */ +static int pd_vidioc_s_fmt(struct poseidon *pd, struct v4l2_pix_format *pix) +{ + struct video_data *video = &pd->video_data; + struct running_context *context = &video->context; + struct v4l2_pix_format *pix_def = &context->pix; + s32 ret = 0, cmd_status = 0, vid_resol; + + /* set the pixel format to firmware */ + if (pix->pixelformat == V4L2_PIX_FMT_RGB565) { + vid_resol = TLG_TUNER_VID_FORMAT_RGB_565; + } else { + pix->pixelformat = V4L2_PIX_FMT_YUYV; + vid_resol = TLG_TUNER_VID_FORMAT_YUV; + } + ret = send_set_req(pd, VIDEO_STREAM_FMT_SEL, + vid_resol, &cmd_status); + + /* set the resolution to firmware */ + vid_resol = TLG_TUNE_VID_RES_720; + switch (pix->width) { + case 704: + vid_resol = TLG_TUNE_VID_RES_704; + break; + default: + pix->width = 720; + case 720: + break; + } + ret |= send_set_req(pd, VIDEO_ROSOLU_SEL, + vid_resol, &cmd_status); + if (ret || cmd_status) + return -EBUSY; + + pix_def->pixelformat = pix->pixelformat; /* save it */ + pix->height = (context->tvnormid & V4L2_STD_525_60) ? 480 : 576; + + /* Compare with the default setting */ + if ((pix_def->width != pix->width) + || (pix_def->height != pix->height)) { + pix_def->width = pix->width; + pix_def->height = pix->height; + pix_def->bytesperline = pix->width * 2; + pix_def->sizeimage = pix->width * pix->height * 2; + } + *pix = *pix_def; + + return 0; +} + +static int vidioc_s_fmt(struct file *file, void *fh, struct v4l2_format *f) +{ + struct front_face *front = fh; + struct poseidon *pd = front->pd; + + /* stop VBI here */ + if (V4L2_BUF_TYPE_VIDEO_CAPTURE != f->type) + return -EINVAL; + + mutex_lock(&pd->lock); + if (pd->file_for_stream == NULL) + pd->file_for_stream = file; + else if (file != pd->file_for_stream) { + mutex_unlock(&pd->lock); + return -EINVAL; + } + + pd_vidioc_s_fmt(pd, &f->fmt.pix); + mutex_unlock(&pd->lock); + return 0; +} + +static int vidioc_g_fmt_vbi(struct file *file, void *fh, + struct v4l2_format *v4l2_f) +{ + struct front_face *front = fh; + struct poseidon *pd = front->pd; + struct v4l2_vbi_format *vbi_fmt = &v4l2_f->fmt.vbi; + + vbi_fmt->samples_per_line = 720 * 2; + vbi_fmt->sampling_rate = 6750000 * 4; + vbi_fmt->sample_format = V4L2_PIX_FMT_GREY; + vbi_fmt->offset = 64 * 4; /*FIXME: why offset */ + if (pd->video_data.context.tvnormid & V4L2_STD_525_60) { + vbi_fmt->start[0] = 10; + vbi_fmt->start[1] = 264; + vbi_fmt->count[0] = V4L_NTSC_VBI_LINES; + vbi_fmt->count[1] = V4L_NTSC_VBI_LINES; + } else { + vbi_fmt->start[0] = 6; + vbi_fmt->start[1] = 314; + vbi_fmt->count[0] = V4L_PAL_VBI_LINES; + vbi_fmt->count[1] = V4L_PAL_VBI_LINES; + } + vbi_fmt->flags = V4L2_VBI_UNSYNC; + return 0; +} + +static int set_std(struct poseidon *pd, v4l2_std_id norm) +{ + struct video_data *video = &pd->video_data; + struct vbi_data *vbi = &pd->vbi_data; + struct running_context *context; + struct v4l2_pix_format *pix; + s32 i, ret = 0, cmd_status, param; + int height; + + for (i = 0; i < POSEIDON_TVNORMS; i++) { + if (norm & poseidon_tvnorms[i].v4l2_id) { + param = poseidon_tvnorms[i].tlg_tvnorm; + log("name : %s", poseidon_tvnorms[i].name); + goto found; + } + } + return -EINVAL; +found: + mutex_lock(&pd->lock); + ret = send_set_req(pd, VIDEO_STD_SEL, param, &cmd_status); + if (ret || cmd_status) + goto out; + + /* Set vbi size and check the height of the frame */ + context = &video->context; + context->tvnormid = poseidon_tvnorms[i].v4l2_id; + if (context->tvnormid & V4L2_STD_525_60) { + vbi->vbi_size = V4L_NTSC_VBI_FRAMESIZE; + height = 480; + } else { + vbi->vbi_size = V4L_PAL_VBI_FRAMESIZE; + height = 576; + } + + pix = &context->pix; + if (pix->height != height) { + pix->height = height; + pix->sizeimage = pix->width * pix->height * 2; + } + +out: + mutex_unlock(&pd->lock); + return ret; +} + +static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id norm) +{ + struct front_face *front = fh; + + return set_std(front->pd, norm); +} + +static int vidioc_g_std(struct file *file, void *fh, v4l2_std_id *norm) +{ + struct front_face *front = fh; + + *norm = front->pd->video_data.context.tvnormid; + return 0; +} + +static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *in) +{ + if (in->index >= POSEIDON_INPUTS) + return -EINVAL; + strcpy(in->name, pd_inputs[in->index].name); + in->type = V4L2_INPUT_TYPE_TUNER; + + /* + * the audio input index mixed with this video input, + * Poseidon only have one audio/video, set to "0" + */ + in->audioset = 1; + in->tuner = 0; + in->std = V4L2_STD_ALL; + in->status = 0; + return 0; +} + +static int vidioc_g_input(struct file *file, void *fh, unsigned int *i) +{ + struct front_face *front = fh; + struct poseidon *pd = front->pd; + struct running_context *context = &pd->video_data.context; + + *i = context->sig_index; + return 0; +} + +/* We can support several inputs */ +static int vidioc_s_input(struct file *file, void *fh, unsigned int i) +{ + struct front_face *front = fh; + struct poseidon *pd = front->pd; + s32 ret, cmd_status; + + if (i >= POSEIDON_INPUTS) + return -EINVAL; + ret = send_set_req(pd, SGNL_SRC_SEL, + pd_inputs[i].tlg_src, &cmd_status); + if (ret) + return ret; + + pd->video_data.context.sig_index = i; + return 0; +} + +static int tlg_s_ctrl(struct v4l2_ctrl *c) +{ + struct poseidon *pd = container_of(c->handler, struct poseidon, + video_data.ctrl_handler); + struct tuner_custom_parameter_s param = {0}; + s32 ret = 0, cmd_status, params; + + switch (c->id) { + case V4L2_CID_BRIGHTNESS: + param.param_id = CUST_PARM_ID_BRIGHTNESS_CTRL; + break; + case V4L2_CID_CONTRAST: + param.param_id = CUST_PARM_ID_CONTRAST_CTRL; + break; + case V4L2_CID_HUE: + param.param_id = CUST_PARM_ID_HUE_CTRL; + break; + case V4L2_CID_SATURATION: + param.param_id = CUST_PARM_ID_SATURATION_CTRL; + break; + } + param.param_value = c->val; + params = *(s32 *)¶m; /* temp code */ + + mutex_lock(&pd->lock); + ret = send_set_req(pd, TUNER_CUSTOM_PARAMETER, params, &cmd_status); + ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status); + mutex_unlock(&pd->lock); + + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ/4); + return ret; +} + +/* Audio ioctls */ +static int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *a) +{ + if (0 != a->index) + return -EINVAL; + a->capability = V4L2_AUDCAP_STEREO; + strcpy(a->name, "USB audio in"); + /*Poseidon have no AVL function.*/ + a->mode = 0; + return 0; +} + +static int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *a) +{ + a->index = 0; + a->capability = V4L2_AUDCAP_STEREO; + strcpy(a->name, "USB audio in"); + a->mode = 0; + return 0; +} + +static int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *a) +{ + return (0 == a->index) ? 0 : -EINVAL; +} + +/* Tuner ioctls */ +static int vidioc_g_tuner(struct file *file, void *fh, struct v4l2_tuner *tuner) +{ + struct front_face *front = fh; + struct poseidon *pd = front->pd; + struct tuner_atv_sig_stat_s atv_stat; + s32 count = 5, ret, cmd_status; + int index; + + if (0 != tuner->index) + return -EINVAL; + + mutex_lock(&pd->lock); + ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_ANALOG_TV, + &atv_stat, &cmd_status, sizeof(atv_stat)); + + while (atv_stat.sig_lock_busy && count-- && !ret) { + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ); + + ret = send_get_req(pd, TUNER_STATUS, TLG_MODE_ANALOG_TV, + &atv_stat, &cmd_status, sizeof(atv_stat)); + } + mutex_unlock(&pd->lock); + + if (debug_mode) + log("P:%d,S:%d", atv_stat.sig_present, atv_stat.sig_strength); + + if (ret || cmd_status) + tuner->signal = 0; + else if (atv_stat.sig_present && !atv_stat.sig_strength) + tuner->signal = 0xFFFF; + else + tuner->signal = (atv_stat.sig_strength * 255 / 10) << 8; + + strcpy(tuner->name, "Telegent Systems"); + tuner->type = V4L2_TUNER_ANALOG_TV; + tuner->rangelow = TUNER_FREQ_MIN / 62500; + tuner->rangehigh = TUNER_FREQ_MAX / 62500; + tuner->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO | + V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; + index = pd->video_data.context.audio_idx; + tuner->rxsubchans = pd_audio_modes[index].v4l2_audio_sub; + tuner->audmode = pd_audio_modes[index].v4l2_audio_mode; + tuner->afc = 0; + return 0; +} + +static int pd_vidioc_s_tuner(struct poseidon *pd, int index) +{ + s32 ret = 0, cmd_status, param, audiomode; + + mutex_lock(&pd->lock); + param = pd_audio_modes[index].tlg_audio_mode; + ret = send_set_req(pd, TUNER_AUD_MODE, param, &cmd_status); + audiomode = get_audio_std(pd->video_data.context.tvnormid); + ret |= send_set_req(pd, TUNER_AUD_ANA_STD, audiomode, + &cmd_status); + if (!ret) + pd->video_data.context.audio_idx = index; + mutex_unlock(&pd->lock); + return ret; +} + +static int vidioc_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *a) +{ + struct front_face *front = fh; + struct poseidon *pd = front->pd; + int index; + + if (0 != a->index) + return -EINVAL; + for (index = 0; index < POSEIDON_AUDIOMODS; index++) + if (a->audmode == pd_audio_modes[index].v4l2_audio_mode) + return pd_vidioc_s_tuner(pd, index); + return -EINVAL; +} + +static int vidioc_g_frequency(struct file *file, void *fh, + struct v4l2_frequency *freq) +{ + struct front_face *front = fh; + struct poseidon *pd = front->pd; + struct running_context *context = &pd->video_data.context; + + if (0 != freq->tuner) + return -EINVAL; + freq->frequency = context->freq; + freq->type = V4L2_TUNER_ANALOG_TV; + return 0; +} + +static int set_frequency(struct poseidon *pd, u32 *frequency) +{ + s32 ret = 0, param, cmd_status; + struct running_context *context = &pd->video_data.context; + + *frequency = clamp(*frequency, + TUNER_FREQ_MIN / 62500, TUNER_FREQ_MAX / 62500); + param = (*frequency) * 62500 / 1000; + + mutex_lock(&pd->lock); + ret = send_set_req(pd, TUNE_FREQ_SELECT, param, &cmd_status); + ret = send_set_req(pd, TAKE_REQUEST, 0, &cmd_status); + + msleep(250); /* wait for a while until the hardware is ready. */ + context->freq = *frequency; + mutex_unlock(&pd->lock); + return ret; +} + +static int vidioc_s_frequency(struct file *file, void *fh, + const struct v4l2_frequency *freq) +{ + struct front_face *front = fh; + struct poseidon *pd = front->pd; + u32 frequency = freq->frequency; + + if (freq->tuner) + return -EINVAL; +#ifdef CONFIG_PM + pd->pm_suspend = pm_video_suspend; + pd->pm_resume = pm_video_resume; +#endif + return set_frequency(pd, &frequency); +} + +static int vidioc_reqbufs(struct file *file, void *fh, + struct v4l2_requestbuffers *b) +{ + struct front_face *front = file->private_data; + return videobuf_reqbufs(&front->q, b); +} + +static int vidioc_querybuf(struct file *file, void *fh, struct v4l2_buffer *b) +{ + struct front_face *front = file->private_data; + return videobuf_querybuf(&front->q, b); +} + +static int vidioc_qbuf(struct file *file, void *fh, struct v4l2_buffer *b) +{ + struct front_face *front = file->private_data; + return videobuf_qbuf(&front->q, b); +} + +static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b) +{ + struct front_face *front = file->private_data; + return videobuf_dqbuf(&front->q, b, file->f_flags & O_NONBLOCK); +} + +/* Just stop the URBs, do not free the URBs */ +static int usb_transfer_stop(struct video_data *video) +{ + if (video->is_streaming) { + int i; + s32 cmd_status; + struct poseidon *pd = video->pd; + + video->is_streaming = 0; + for (i = 0; i < SBUF_NUM; ++i) { + if (video->urb_array[i]) + usb_kill_urb(video->urb_array[i]); + } + + send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP, + &cmd_status); + } + return 0; +} + +int stop_all_video_stream(struct poseidon *pd) +{ + struct video_data *video = &pd->video_data; + struct vbi_data *vbi = &pd->vbi_data; + + mutex_lock(&pd->lock); + if (video->is_streaming) { + struct front_face *front = video->front; + + /* stop the URBs */ + usb_transfer_stop(video); + free_all_urb(video); + + /* stop the host side of VIDEO */ + videobuf_stop(&front->q); + videobuf_mmap_free(&front->q); + + /* stop the host side of VBI */ + front = vbi->front; + if (front) { + videobuf_stop(&front->q); + videobuf_mmap_free(&front->q); + } + } + mutex_unlock(&pd->lock); + return 0; +} + +/* + * The bubbles can seriously damage the video's quality, + * though it occurs in very rare situation. + */ +static void iso_bubble_handler(struct work_struct *w) +{ + struct video_data *video; + struct poseidon *pd; + + video = container_of(w, struct video_data, bubble_work); + pd = video->pd; + + mutex_lock(&pd->lock); + usb_transfer_stop(video); + msleep(500); + start_video_stream(pd); + mutex_unlock(&pd->lock); +} + + +static int vidioc_streamon(struct file *file, void *fh, + enum v4l2_buf_type type) +{ + struct front_face *front = fh; + + if (unlikely(type != front->type)) + return -EINVAL; + return videobuf_streamon(&front->q); +} + +static int vidioc_streamoff(struct file *file, void *fh, + enum v4l2_buf_type type) +{ + struct front_face *front = file->private_data; + + if (unlikely(type != front->type)) + return -EINVAL; + return videobuf_streamoff(&front->q); +} + +/* Set the firmware's default values : need altersetting */ +static int pd_video_checkmode(struct poseidon *pd) +{ + s32 ret = 0, cmd_status, audiomode; + + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ/2); + + /* choose the altersetting */ + ret = usb_set_interface(pd->udev, 0, + (pd->cur_transfer_mode ? + ISO_3K_BULK_ALTERNATE_IFACE : + BULK_ALTERNATE_IFACE)); + if (ret < 0) + goto error; + + /* set default parameters for PAL-D , with the VBI enabled*/ + ret = set_tuner_mode(pd, TLG_MODE_ANALOG_TV); + ret |= send_set_req(pd, SGNL_SRC_SEL, + TLG_SIG_SRC_ANTENNA, &cmd_status); + ret |= send_set_req(pd, VIDEO_STD_SEL, + TLG_TUNE_VSTD_PAL_D, &cmd_status); + ret |= send_set_req(pd, VIDEO_STREAM_FMT_SEL, + TLG_TUNER_VID_FORMAT_YUV, &cmd_status); + ret |= send_set_req(pd, VIDEO_ROSOLU_SEL, + TLG_TUNE_VID_RES_720, &cmd_status); + ret |= send_set_req(pd, TUNE_FREQ_SELECT, TUNER_FREQ_MIN, &cmd_status); + ret |= send_set_req(pd, VBI_DATA_SEL, 1, &cmd_status);/* enable vbi */ + + /* set the audio */ + audiomode = get_audio_std(pd->video_data.context.tvnormid); + ret |= send_set_req(pd, TUNER_AUD_ANA_STD, audiomode, &cmd_status); + ret |= send_set_req(pd, TUNER_AUD_MODE, + TLG_TUNE_TVAUDIO_MODE_STEREO, &cmd_status); + ret |= send_set_req(pd, AUDIO_SAMPLE_RATE_SEL, + ATV_AUDIO_RATE_48K, &cmd_status); +error: + return ret; +} + +#ifdef CONFIG_PM +static int pm_video_suspend(struct poseidon *pd) +{ + /* stop audio */ + pm_alsa_suspend(pd); + + /* stop and free all the URBs */ + usb_transfer_stop(&pd->video_data); + free_all_urb(&pd->video_data); + + /* reset the interface */ + usb_set_interface(pd->udev, 0, 0); + msleep(300); + return 0; +} + +static int restore_v4l2_context(struct poseidon *pd, + struct running_context *context) +{ + struct front_face *front = pd->video_data.front; + + pd_video_checkmode(pd); + + set_std(pd, context->tvnormid); + vidioc_s_input(NULL, front, context->sig_index); + pd_vidioc_s_tuner(pd, context->audio_idx); + pd_vidioc_s_fmt(pd, &context->pix); + set_frequency(pd, &context->freq); + return 0; +} + +static int pm_video_resume(struct poseidon *pd) +{ + struct video_data *video = &pd->video_data; + + /* resume the video */ + /* [1] restore the origin V4L2 parameters */ + restore_v4l2_context(pd, &video->context); + + /* [2] initiate video copy variables */ + if (video->front->curr_frame) + init_copy(video, 0); + + /* [3] fire urbs */ + start_video_stream(pd); + + /* resume the audio */ + pm_alsa_resume(pd); + return 0; +} +#endif + +void set_debug_mode(struct video_device *vfd, int debug_mode) +{ + vfd->debug = 0; + if (debug_mode & 0x1) + vfd->debug = V4L2_DEBUG_IOCTL; + if (debug_mode & 0x2) + vfd->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG; +} + +static void init_video_context(struct running_context *context) +{ + context->sig_index = 0; + context->audio_idx = 1; /* stereo */ + context->tvnormid = V4L2_STD_PAL_D; + context->pix = (struct v4l2_pix_format) { + .width = 720, + .height = 576, + .pixelformat = V4L2_PIX_FMT_YUYV, + .field = V4L2_FIELD_INTERLACED, + .bytesperline = 720 * 2, + .sizeimage = 720 * 576 * 2, + .colorspace = V4L2_COLORSPACE_SMPTE170M, + }; +} + +static int pd_video_open(struct file *file) +{ + struct video_device *vfd = video_devdata(file); + struct poseidon *pd = video_get_drvdata(vfd); + struct front_face *front = NULL; + int ret = -ENOMEM; + + mutex_lock(&pd->lock); + usb_autopm_get_interface(pd->interface); + + if (pd->state && !(pd->state & POSEIDON_STATE_ANALOG)) { + ret = -EBUSY; + goto out; + } + front = kzalloc(sizeof(struct front_face), GFP_KERNEL); + if (!front) + goto out; + if (vfd->vfl_type == VFL_TYPE_GRABBER) { + pd->cur_transfer_mode = usb_transfer_mode;/* bulk or iso */ + init_video_context(&pd->video_data.context); + + ret = pd_video_checkmode(pd); + if (ret < 0) { + kfree(front); + ret = -1; + goto out; + } + + front->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + pd->video_data.users++; + set_debug_mode(vfd, debug_mode); + + videobuf_queue_vmalloc_init(&front->q, &pd_video_qops, + NULL, &front->queue_lock, + V4L2_BUF_TYPE_VIDEO_CAPTURE, + V4L2_FIELD_INTERLACED,/* video is interlacd */ + sizeof(struct videobuf_buffer),/*it's enough*/ + front, NULL); + } else { + front->type = V4L2_BUF_TYPE_VBI_CAPTURE; + pd->vbi_data.front = front; + pd->vbi_data.users++; + + videobuf_queue_vmalloc_init(&front->q, &pd_video_qops, + NULL, &front->queue_lock, + V4L2_BUF_TYPE_VBI_CAPTURE, + V4L2_FIELD_NONE, /* vbi is NONE mode */ + sizeof(struct videobuf_buffer), + front, NULL); + } + + pd->state |= POSEIDON_STATE_ANALOG; + front->pd = pd; + front->curr_frame = NULL; + INIT_LIST_HEAD(&front->active); + spin_lock_init(&front->queue_lock); + + file->private_data = front; + kref_get(&pd->kref); + + mutex_unlock(&pd->lock); + return 0; +out: + usb_autopm_put_interface(pd->interface); + mutex_unlock(&pd->lock); + return ret; +} + +static int pd_video_release(struct file *file) +{ + struct front_face *front = file->private_data; + struct poseidon *pd = front->pd; + s32 cmd_status = 0; + + mutex_lock(&pd->lock); + + if (front->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { + /* stop the device, and free the URBs */ + usb_transfer_stop(&pd->video_data); + free_all_urb(&pd->video_data); + + /* stop the firmware */ + send_set_req(pd, PLAY_SERVICE, TLG_TUNE_PLAY_SVC_STOP, + &cmd_status); + + pd->file_for_stream = NULL; + pd->video_data.users--; + } else if (front->type == V4L2_BUF_TYPE_VBI_CAPTURE) { + pd->vbi_data.front = NULL; + pd->vbi_data.users--; + } + if (!pd->vbi_data.users && !pd->video_data.users) + pd->state &= ~POSEIDON_STATE_ANALOG; + videobuf_stop(&front->q); + videobuf_mmap_free(&front->q); + + usb_autopm_put_interface(pd->interface); + mutex_unlock(&pd->lock); + + kfree(front); + file->private_data = NULL; + kref_put(&pd->kref, poseidon_delete); + return 0; +} + +static int pd_video_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct front_face *front = file->private_data; + return videobuf_mmap_mapper(&front->q, vma); +} + +static unsigned int pd_video_poll(struct file *file, poll_table *table) +{ + struct front_face *front = file->private_data; + return videobuf_poll_stream(file, &front->q, table); +} + +static ssize_t pd_video_read(struct file *file, char __user *buffer, + size_t count, loff_t *ppos) +{ + struct front_face *front = file->private_data; + return videobuf_read_stream(&front->q, buffer, count, ppos, + 0, file->f_flags & O_NONBLOCK); +} + +/* This struct works for both VIDEO and VBI */ +static const struct v4l2_file_operations pd_video_fops = { + .owner = THIS_MODULE, + .open = pd_video_open, + .release = pd_video_release, + .read = pd_video_read, + .poll = pd_video_poll, + .mmap = pd_video_mmap, + .ioctl = video_ioctl2, /* maybe changed in future */ +}; + +static const struct v4l2_ioctl_ops pd_video_ioctl_ops = { + .vidioc_querycap = vidioc_querycap, + + /* Video format */ + .vidioc_g_fmt_vid_cap = vidioc_g_fmt, + .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt, + .vidioc_s_fmt_vid_cap = vidioc_s_fmt, + .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi, /* VBI */ + + /* Input */ + .vidioc_g_input = vidioc_g_input, + .vidioc_s_input = vidioc_s_input, + .vidioc_enum_input = vidioc_enum_input, + + /* Audio ioctls */ + .vidioc_enumaudio = vidioc_enumaudio, + .vidioc_g_audio = vidioc_g_audio, + .vidioc_s_audio = vidioc_s_audio, + + /* Tuner ioctls */ + .vidioc_g_tuner = vidioc_g_tuner, + .vidioc_s_tuner = vidioc_s_tuner, + .vidioc_g_std = vidioc_g_std, + .vidioc_s_std = vidioc_s_std, + .vidioc_g_frequency = vidioc_g_frequency, + .vidioc_s_frequency = vidioc_s_frequency, + + /* Buffer handlers */ + .vidioc_reqbufs = vidioc_reqbufs, + .vidioc_querybuf = vidioc_querybuf, + .vidioc_qbuf = vidioc_qbuf, + .vidioc_dqbuf = vidioc_dqbuf, + + /* Stream on/off */ + .vidioc_streamon = vidioc_streamon, + .vidioc_streamoff = vidioc_streamoff, +}; + +static struct video_device pd_video_template = { + .name = "Telegent-Video", + .fops = &pd_video_fops, + .minor = -1, + .release = video_device_release_empty, + .tvnorms = V4L2_STD_ALL, + .ioctl_ops = &pd_video_ioctl_ops, +}; + +static const struct v4l2_ctrl_ops tlg_ctrl_ops = { + .s_ctrl = tlg_s_ctrl, +}; + +void pd_video_exit(struct poseidon *pd) +{ + struct video_data *video = &pd->video_data; + struct vbi_data *vbi = &pd->vbi_data; + + video_unregister_device(&video->v_dev); + video_unregister_device(&vbi->v_dev); + v4l2_ctrl_handler_free(&video->ctrl_handler); + log(); +} + +int pd_video_init(struct poseidon *pd) +{ + struct video_data *video = &pd->video_data; + struct vbi_data *vbi = &pd->vbi_data; + struct v4l2_ctrl_handler *hdl = &video->ctrl_handler; + u32 freq = TUNER_FREQ_MIN / 62500; + int ret = -ENOMEM; + + v4l2_ctrl_handler_init(hdl, 4); + v4l2_ctrl_new_std(hdl, &tlg_ctrl_ops, V4L2_CID_BRIGHTNESS, + 0, 10000, 1, 100); + v4l2_ctrl_new_std(hdl, &tlg_ctrl_ops, V4L2_CID_CONTRAST, + 0, 10000, 1, 100); + v4l2_ctrl_new_std(hdl, &tlg_ctrl_ops, V4L2_CID_HUE, + 0, 10000, 1, 100); + v4l2_ctrl_new_std(hdl, &tlg_ctrl_ops, V4L2_CID_SATURATION, + 0, 10000, 1, 100); + if (hdl->error) { + v4l2_ctrl_handler_free(hdl); + return hdl->error; + } + set_frequency(pd, &freq); + video->v_dev = pd_video_template; + video->v_dev.v4l2_dev = &pd->v4l2_dev; + video->v_dev.ctrl_handler = hdl; + video_set_drvdata(&video->v_dev, pd); + + ret = video_register_device(&video->v_dev, VFL_TYPE_GRABBER, -1); + if (ret != 0) + goto out; + + /* VBI uses the same template as video */ + vbi->v_dev = pd_video_template; + vbi->v_dev.v4l2_dev = &pd->v4l2_dev; + vbi->v_dev.ctrl_handler = hdl; + video_set_drvdata(&vbi->v_dev, pd); + ret = video_register_device(&vbi->v_dev, VFL_TYPE_VBI, -1); + if (ret != 0) + goto out; + log("register VIDEO/VBI devices"); + return 0; +out: + log("VIDEO/VBI devices register failed, : %d", ret); + pd_video_exit(pd); + return ret; +} diff --git a/drivers/staging/media/tlg2300/vendorcmds.h b/drivers/staging/media/tlg2300/vendorcmds.h new file mode 100644 index 000000000000..ba6f4ae3b2c2 --- /dev/null +++ b/drivers/staging/media/tlg2300/vendorcmds.h @@ -0,0 +1,243 @@ +#ifndef VENDOR_CMD_H_ +#define VENDOR_CMD_H_ + +#define BULK_ALTERNATE_IFACE (2) +#define ISO_3K_BULK_ALTERNATE_IFACE (1) +#define REQ_SET_CMD (0X00) +#define REQ_GET_CMD (0X80) + +enum tlg__analog_audio_standard { + TLG_TUNE_ASTD_NONE = 0x00000000, + TLG_TUNE_ASTD_A2 = 0x00000001, + TLG_TUNE_ASTD_NICAM = 0x00000002, + TLG_TUNE_ASTD_EIAJ = 0x00000004, + TLG_TUNE_ASTD_BTSC = 0x00000008, + TLG_TUNE_ASTD_FM_US = 0x00000010, + TLG_TUNE_ASTD_FM_EUR = 0x00000020, + TLG_TUNE_ASTD_ALL = 0x0000003f +}; + +/* + * identifiers for Custom Parameter messages. + * @typedef cmd_custom_param_id_t + */ +enum cmd_custom_param_id { + CUST_PARM_ID_NONE = 0x00, + CUST_PARM_ID_BRIGHTNESS_CTRL = 0x01, + CUST_PARM_ID_CONTRAST_CTRL = 0x02, + CUST_PARM_ID_HUE_CTRL = 0x03, + CUST_PARM_ID_SATURATION_CTRL = 0x04, + CUST_PARM_ID_AUDIO_SNR_THRESHOLD = 0x10, + CUST_PARM_ID_AUDIO_AGC_THRESHOLD = 0x11, + CUST_PARM_ID_MAX +}; + +struct tuner_custom_parameter_s { + uint16_t param_id; /* Parameter identifier */ + uint16_t param_value; /* Parameter value */ +}; + +struct tuner_ber_rate_s { + uint32_t ber_rate; /* BER sample rate in seconds */ +}; + +struct tuner_atv_sig_stat_s { + uint32_t sig_present; + uint32_t sig_locked; + uint32_t sig_lock_busy; + uint32_t sig_strength; /* milliDb */ + uint32_t tv_audio_chan; /* mono/stereo/sap*/ + uint32_t mvision_stat; /* macrovision status */ +}; + +struct tuner_dtv_sig_stat_s { + uint32_t sig_present; /* Boolean*/ + uint32_t sig_locked; /* Boolean */ + uint32_t sig_lock_busy; /* Boolean (Can this time-out?) */ + uint32_t sig_strength; /* milliDb*/ +}; + +struct tuner_fm_sig_stat_s { + uint32_t sig_present; /* Boolean*/ + uint32_t sig_locked; /* Boolean */ + uint32_t sig_lock_busy; /* Boolean */ + uint32_t sig_stereo_mono;/* TBD*/ + uint32_t sig_strength; /* milliDb*/ +}; + +enum _tag_tlg_tune_srv_cmd { + TLG_TUNE_PLAY_SVC_START = 1, + TLG_TUNE_PLAY_SVC_STOP +}; + +enum _tag_tune_atv_audio_mode_caps { + TLG_TUNE_TVAUDIO_MODE_MONO = 0x00000001, + TLG_TUNE_TVAUDIO_MODE_STEREO = 0x00000002, + TLG_TUNE_TVAUDIO_MODE_LANG_A = 0x00000010,/* Primary language*/ + TLG_TUNE_TVAUDIO_MODE_LANG_B = 0x00000020,/* 2nd avail language*/ + TLG_TUNE_TVAUDIO_MODE_LANG_C = 0x00000040 +}; + + +enum _tag_tuner_atv_audio_rates { + ATV_AUDIO_RATE_NONE = 0x00,/* Audio not supported*/ + ATV_AUDIO_RATE_32K = 0x01,/* Audio rate = 32 KHz*/ + ATV_AUDIO_RATE_48K = 0x02, /* Audio rate = 48 KHz*/ + ATV_AUDIO_RATE_31_25K = 0x04 /* Audio rate = 31.25KHz */ +}; + +enum _tag_tune_atv_vid_res_caps { + TLG_TUNE_VID_RES_NONE = 0x00000000, + TLG_TUNE_VID_RES_720 = 0x00000001, + TLG_TUNE_VID_RES_704 = 0x00000002, + TLG_TUNE_VID_RES_360 = 0x00000004 +}; + +enum _tag_tuner_analog_video_format { + TLG_TUNER_VID_FORMAT_YUV = 0x00000001, + TLG_TUNER_VID_FORMAT_YCRCB = 0x00000002, + TLG_TUNER_VID_FORMAT_RGB_565 = 0x00000004, +}; + +enum tlg_ext_audio_support { + TLG_EXT_AUDIO_NONE = 0x00,/* No external audio input supported */ + TLG_EXT_AUDIO_LR = 0x01/* LR external audio inputs supported*/ +}; + +enum { + TLG_MODE_NONE = 0x00, /* No Mode specified*/ + TLG_MODE_ANALOG_TV = 0x01, /* Analog Television mode*/ + TLG_MODE_ANALOG_TV_UNCOMP = 0x01, /* Analog Television mode*/ + TLG_MODE_ANALOG_TV_COMP = 0x02, /* Analog TV mode (compressed)*/ + TLG_MODE_FM_RADIO = 0x04, /* FM Radio mode*/ + TLG_MODE_DVB_T = 0x08, /* Digital TV (DVB-T)*/ +}; + +enum tlg_signal_sources_t { + TLG_SIG_SRC_NONE = 0x00,/* Signal source not specified */ + TLG_SIG_SRC_ANTENNA = 0x01,/* Signal src is: Antenna */ + TLG_SIG_SRC_CABLE = 0x02,/* Signal src is: Coax Cable*/ + TLG_SIG_SRC_SVIDEO = 0x04,/* Signal src is: S_VIDEO */ + TLG_SIG_SRC_COMPOSITE = 0x08 /* Signal src is: Composite Video */ +}; + +enum tuner_analog_video_standard { + TLG_TUNE_VSTD_NONE = 0x00000000, + TLG_TUNE_VSTD_NTSC_M = 0x00000001, + TLG_TUNE_VSTD_NTSC_M_J = 0x00000002,/* Japan */ + TLG_TUNE_VSTD_PAL_B = 0x00000010, + TLG_TUNE_VSTD_PAL_D = 0x00000020, + TLG_TUNE_VSTD_PAL_G = 0x00000040, + TLG_TUNE_VSTD_PAL_H = 0x00000080, + TLG_TUNE_VSTD_PAL_I = 0x00000100, + TLG_TUNE_VSTD_PAL_M = 0x00000200, + TLG_TUNE_VSTD_PAL_N = 0x00000400, + TLG_TUNE_VSTD_SECAM_B = 0x00001000, + TLG_TUNE_VSTD_SECAM_D = 0x00002000, + TLG_TUNE_VSTD_SECAM_G = 0x00004000, + TLG_TUNE_VSTD_SECAM_H = 0x00008000, + TLG_TUNE_VSTD_SECAM_K = 0x00010000, + TLG_TUNE_VSTD_SECAM_K1 = 0x00020000, + TLG_TUNE_VSTD_SECAM_L = 0x00040000, + TLG_TUNE_VSTD_SECAM_L1 = 0x00080000, + TLG_TUNE_VSTD_PAL_N_COMBO = 0x00100000 +}; + +enum tlg_mode_caps { + TLG_MODE_CAPS_NONE = 0x00, /* No Mode specified */ + TLG_MODE_CAPS_ANALOG_TV_UNCOMP = 0x01, /* Analog TV mode */ + TLG_MODE_CAPS_ANALOG_TV_COMP = 0x02, /* Analog TV (compressed)*/ + TLG_MODE_CAPS_FM_RADIO = 0x04, /* FM Radio mode */ + TLG_MODE_CAPS_DVB_T = 0x08, /* Digital TV (DVB-T) */ +}; + +enum poseidon_vendor_cmds { + LAST_CMD_STAT = 0x00, + GET_CHIP_ID = 0x01, + GET_FW_ID = 0x02, + PRODUCT_CAPS = 0x03, + + TUNE_MODE_CAP_ATV = 0x10, + TUNE_MODE_CAP_ATVCOMP = 0X10, + TUNE_MODE_CAP_DVBT = 0x10, + TUNE_MODE_CAP_FM = 0x10, + TUNE_MODE_SELECT = 0x11, + TUNE_FREQ_SELECT = 0x12, + SGNL_SRC_SEL = 0x13, + + VIDEO_STD_SEL = 0x14, + VIDEO_STREAM_FMT_SEL = 0x15, + VIDEO_ROSOLU_AVAIL = 0x16, + VIDEO_ROSOLU_SEL = 0x17, + VIDEO_CONT_PROTECT = 0x20, + + VCR_TIMING_MODSEL = 0x21, + EXT_AUDIO_CAP = 0x22, + EXT_AUDIO_SEL = 0x23, + TEST_PATTERN_SEL = 0x24, + VBI_DATA_SEL = 0x25, + AUDIO_SAMPLE_RATE_CAP = 0x28, + AUDIO_SAMPLE_RATE_SEL = 0x29, + TUNER_AUD_MODE = 0x2a, + TUNER_AUD_MODE_AVAIL = 0x2b, + TUNER_AUD_ANA_STD = 0x2c, + TUNER_CUSTOM_PARAMETER = 0x2f, + + DVBT_TUNE_MODE_SEL = 0x30, + DVBT_BANDW_CAP = 0x31, + DVBT_BANDW_SEL = 0x32, + DVBT_GUARD_INTERV_CAP = 0x33, + DVBT_GUARD_INTERV_SEL = 0x34, + DVBT_MODULATION_CAP = 0x35, + DVBT_MODULATION_SEL = 0x36, + DVBT_INNER_FEC_RATE_CAP = 0x37, + DVBT_INNER_FEC_RATE_SEL = 0x38, + DVBT_TRANS_MODE_CAP = 0x39, + DVBT_TRANS_MODE_SEL = 0x3a, + DVBT_SEARCH_RANG = 0x3c, + + TUNER_SETUP_ANALOG = 0x40, + TUNER_SETUP_DIGITAL = 0x41, + TUNER_SETUP_FM_RADIO = 0x42, + TAKE_REQUEST = 0x43, /* Take effect of the command */ + PLAY_SERVICE = 0x44, /* Play start or Play stop */ + TUNER_STATUS = 0x45, + TUNE_PROP_DVBT = 0x46, + ERR_RATE_STATS = 0x47, + TUNER_BER_RATE = 0x48, + + SCAN_CAPS = 0x50, + SCAN_SETUP = 0x51, + SCAN_SERVICE = 0x52, + SCAN_STATS = 0x53, + + PID_SET = 0x58, + PID_UNSET = 0x59, + PID_LIST = 0x5a, + + IRD_CAP = 0x60, + IRD_MODE_SEL = 0x61, + IRD_SETUP = 0x62, + + PTM_MODE_CAP = 0x70, + PTM_MODE_SEL = 0x71, + PTM_SERVICE = 0x72, + TUNER_REG_SCRIPT = 0x73, + CMD_CHIP_RST = 0x74, +}; + +enum tlg_bw { + TLG_BW_5 = 5, + TLG_BW_6 = 6, + TLG_BW_7 = 7, + TLG_BW_8 = 8, + TLG_BW_12 = 12, + TLG_BW_15 = 15 +}; + +struct cmd_firmware_vers_s { + uint8_t fw_rev_major; + uint8_t fw_rev_minor; + uint16_t fw_patch; +}; +#endif /* VENDOR_CMD_H_ */ diff --git a/drivers/staging/media/vino/Kconfig b/drivers/staging/media/vino/Kconfig new file mode 100644 index 000000000000..03700dadafd8 --- /dev/null +++ b/drivers/staging/media/vino/Kconfig @@ -0,0 +1,24 @@ +config VIDEO_VINO + tristate "SGI Vino Video For Linux (Deprecated)" + depends on I2C && SGI_IP22 && VIDEO_V4L2 + select VIDEO_SAA7191 if MEDIA_SUBDRV_AUTOSELECT + help + Say Y here to build in support for the Vino video input system found + on SGI Indy machines. + + This driver is deprecated and will be removed soon. If you have + hardware for this and you want to work on this driver, then contact + the linux-media mailinglist. + +config VIDEO_SAA7191 + tristate "Philips SAA7191 video decoder (Deprecated)" + depends on VIDEO_V4L2 && I2C + ---help--- + Support for the Philips SAA7191 video decoder. + + This driver is deprecated and will be removed soon. If you have + hardware for this and you want to work on this driver, then contact + the linux-media mailinglist. + + To compile this driver as a module, choose M here: the + module will be called saa7191. diff --git a/drivers/staging/media/vino/Makefile b/drivers/staging/media/vino/Makefile new file mode 100644 index 000000000000..914c2513687c --- /dev/null +++ b/drivers/staging/media/vino/Makefile @@ -0,0 +1,3 @@ +obj-$(CONFIG_VIDEO_VINO) += indycam.o +obj-$(CONFIG_VIDEO_VINO) += vino.o +obj-$(CONFIG_VIDEO_SAA7191) += saa7191.o diff --git a/drivers/staging/media/vino/indycam.c b/drivers/staging/media/vino/indycam.c new file mode 100644 index 000000000000..f1d192bbcb4c --- /dev/null +++ b/drivers/staging/media/vino/indycam.c @@ -0,0 +1,378 @@ +/* + * indycam.c - Silicon Graphics IndyCam digital camera driver + * + * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org> + * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/fs.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/major.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/slab.h> + +/* IndyCam decodes stream of photons into digital image representation ;-) */ +#include <linux/videodev2.h> +#include <linux/i2c.h> +#include <media/v4l2-device.h> + +#include "indycam.h" + +#define INDYCAM_MODULE_VERSION "0.0.5" + +MODULE_DESCRIPTION("SGI IndyCam driver"); +MODULE_VERSION(INDYCAM_MODULE_VERSION); +MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>"); +MODULE_LICENSE("GPL"); + + +// #define INDYCAM_DEBUG + +#ifdef INDYCAM_DEBUG +#define dprintk(x...) printk("IndyCam: " x); +#define indycam_regdump(client) indycam_regdump_debug(client) +#else +#define dprintk(x...) +#define indycam_regdump(client) +#endif + +struct indycam { + struct v4l2_subdev sd; + u8 version; +}; + +static inline struct indycam *to_indycam(struct v4l2_subdev *sd) +{ + return container_of(sd, struct indycam, sd); +} + +static const u8 initseq[] = { + INDYCAM_CONTROL_AGCENA, /* INDYCAM_CONTROL */ + INDYCAM_SHUTTER_60, /* INDYCAM_SHUTTER */ + INDYCAM_GAIN_DEFAULT, /* INDYCAM_GAIN */ + 0x00, /* INDYCAM_BRIGHTNESS (read-only) */ + INDYCAM_RED_BALANCE_DEFAULT, /* INDYCAM_RED_BALANCE */ + INDYCAM_BLUE_BALANCE_DEFAULT, /* INDYCAM_BLUE_BALANCE */ + INDYCAM_RED_SATURATION_DEFAULT, /* INDYCAM_RED_SATURATION */ + INDYCAM_BLUE_SATURATION_DEFAULT,/* INDYCAM_BLUE_SATURATION */ +}; + +/* IndyCam register handling */ + +static int indycam_read_reg(struct v4l2_subdev *sd, u8 reg, u8 *value) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret; + + if (reg == INDYCAM_REG_RESET) { + dprintk("indycam_read_reg(): " + "skipping write-only register %d\n", reg); + *value = 0; + return 0; + } + + ret = i2c_smbus_read_byte_data(client, reg); + + if (ret < 0) { + printk(KERN_ERR "IndyCam: indycam_read_reg(): read failed, " + "register = 0x%02x\n", reg); + return ret; + } + + *value = (u8)ret; + + return 0; +} + +static int indycam_write_reg(struct v4l2_subdev *sd, u8 reg, u8 value) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int err; + + if (reg == INDYCAM_REG_BRIGHTNESS || reg == INDYCAM_REG_VERSION) { + dprintk("indycam_write_reg(): " + "skipping read-only register %d\n", reg); + return 0; + } + + dprintk("Writing Reg %d = 0x%02x\n", reg, value); + err = i2c_smbus_write_byte_data(client, reg, value); + + if (err) { + printk(KERN_ERR "IndyCam: indycam_write_reg(): write failed, " + "register = 0x%02x, value = 0x%02x\n", reg, value); + } + return err; +} + +static int indycam_write_block(struct v4l2_subdev *sd, u8 reg, + u8 length, u8 *data) +{ + int i, err; + + for (i = 0; i < length; i++) { + err = indycam_write_reg(sd, reg + i, data[i]); + if (err) + return err; + } + + return 0; +} + +/* Helper functions */ + +#ifdef INDYCAM_DEBUG +static void indycam_regdump_debug(struct v4l2_subdev *sd) +{ + int i; + u8 val; + + for (i = 0; i < 9; i++) { + indycam_read_reg(sd, i, &val); + dprintk("Reg %d = 0x%02x\n", i, val); + } +} +#endif + +static int indycam_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + struct indycam *camera = to_indycam(sd); + u8 reg; + int ret = 0; + + switch (ctrl->id) { + case V4L2_CID_AUTOGAIN: + case V4L2_CID_AUTO_WHITE_BALANCE: + ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, ®); + if (ret) + return -EIO; + if (ctrl->id == V4L2_CID_AUTOGAIN) + ctrl->value = (reg & INDYCAM_CONTROL_AGCENA) + ? 1 : 0; + else + ctrl->value = (reg & INDYCAM_CONTROL_AWBCTL) + ? 1 : 0; + break; + case V4L2_CID_EXPOSURE: + ret = indycam_read_reg(sd, INDYCAM_REG_SHUTTER, ®); + if (ret) + return -EIO; + ctrl->value = ((s32)reg == 0x00) ? 0xff : ((s32)reg - 1); + break; + case V4L2_CID_GAIN: + ret = indycam_read_reg(sd, INDYCAM_REG_GAIN, ®); + if (ret) + return -EIO; + ctrl->value = (s32)reg; + break; + case V4L2_CID_RED_BALANCE: + ret = indycam_read_reg(sd, INDYCAM_REG_RED_BALANCE, ®); + if (ret) + return -EIO; + ctrl->value = (s32)reg; + break; + case V4L2_CID_BLUE_BALANCE: + ret = indycam_read_reg(sd, INDYCAM_REG_BLUE_BALANCE, ®); + if (ret) + return -EIO; + ctrl->value = (s32)reg; + break; + case INDYCAM_CONTROL_RED_SATURATION: + ret = indycam_read_reg(sd, + INDYCAM_REG_RED_SATURATION, ®); + if (ret) + return -EIO; + ctrl->value = (s32)reg; + break; + case INDYCAM_CONTROL_BLUE_SATURATION: + ret = indycam_read_reg(sd, + INDYCAM_REG_BLUE_SATURATION, ®); + if (ret) + return -EIO; + ctrl->value = (s32)reg; + break; + case V4L2_CID_GAMMA: + if (camera->version == CAMERA_VERSION_MOOSE) { + ret = indycam_read_reg(sd, + INDYCAM_REG_GAMMA, ®); + if (ret) + return -EIO; + ctrl->value = (s32)reg; + } else { + ctrl->value = INDYCAM_GAMMA_DEFAULT; + } + break; + default: + ret = -EINVAL; + } + + return ret; +} + +static int indycam_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + struct indycam *camera = to_indycam(sd); + u8 reg; + int ret = 0; + + switch (ctrl->id) { + case V4L2_CID_AUTOGAIN: + case V4L2_CID_AUTO_WHITE_BALANCE: + ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, ®); + if (ret) + break; + + if (ctrl->id == V4L2_CID_AUTOGAIN) { + if (ctrl->value) + reg |= INDYCAM_CONTROL_AGCENA; + else + reg &= ~INDYCAM_CONTROL_AGCENA; + } else { + if (ctrl->value) + reg |= INDYCAM_CONTROL_AWBCTL; + else + reg &= ~INDYCAM_CONTROL_AWBCTL; + } + + ret = indycam_write_reg(sd, INDYCAM_REG_CONTROL, reg); + break; + case V4L2_CID_EXPOSURE: + reg = (ctrl->value == 0xff) ? 0x00 : (ctrl->value + 1); + ret = indycam_write_reg(sd, INDYCAM_REG_SHUTTER, reg); + break; + case V4L2_CID_GAIN: + ret = indycam_write_reg(sd, INDYCAM_REG_GAIN, ctrl->value); + break; + case V4L2_CID_RED_BALANCE: + ret = indycam_write_reg(sd, INDYCAM_REG_RED_BALANCE, + ctrl->value); + break; + case V4L2_CID_BLUE_BALANCE: + ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_BALANCE, + ctrl->value); + break; + case INDYCAM_CONTROL_RED_SATURATION: + ret = indycam_write_reg(sd, INDYCAM_REG_RED_SATURATION, + ctrl->value); + break; + case INDYCAM_CONTROL_BLUE_SATURATION: + ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_SATURATION, + ctrl->value); + break; + case V4L2_CID_GAMMA: + if (camera->version == CAMERA_VERSION_MOOSE) { + ret = indycam_write_reg(sd, INDYCAM_REG_GAMMA, + ctrl->value); + } + break; + default: + ret = -EINVAL; + } + + return ret; +} + +/* I2C-interface */ + +/* ----------------------------------------------------------------------- */ + +static const struct v4l2_subdev_core_ops indycam_core_ops = { + .g_ctrl = indycam_g_ctrl, + .s_ctrl = indycam_s_ctrl, +}; + +static const struct v4l2_subdev_ops indycam_ops = { + .core = &indycam_core_ops, +}; + +static int indycam_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + int err = 0; + struct indycam *camera; + struct v4l2_subdev *sd; + + v4l_info(client, "chip found @ 0x%x (%s)\n", + client->addr << 1, client->adapter->name); + + camera = kzalloc(sizeof(struct indycam), GFP_KERNEL); + if (!camera) + return -ENOMEM; + + sd = &camera->sd; + v4l2_i2c_subdev_init(sd, client, &indycam_ops); + + camera->version = i2c_smbus_read_byte_data(client, + INDYCAM_REG_VERSION); + if (camera->version != CAMERA_VERSION_INDY && + camera->version != CAMERA_VERSION_MOOSE) { + kfree(camera); + return -ENODEV; + } + + printk(KERN_INFO "IndyCam v%d.%d detected\n", + INDYCAM_VERSION_MAJOR(camera->version), + INDYCAM_VERSION_MINOR(camera->version)); + + indycam_regdump(sd); + + // initialize + err = indycam_write_block(sd, 0, sizeof(initseq), (u8 *)&initseq); + if (err) { + printk(KERN_ERR "IndyCam initialization failed\n"); + kfree(camera); + return -EIO; + } + + indycam_regdump(sd); + + // white balance + err = indycam_write_reg(sd, INDYCAM_REG_CONTROL, + INDYCAM_CONTROL_AGCENA | INDYCAM_CONTROL_AWBCTL); + if (err) { + printk(KERN_ERR "IndyCam: White balancing camera failed\n"); + kfree(camera); + return -EIO; + } + + indycam_regdump(sd); + + printk(KERN_INFO "IndyCam initialized\n"); + + return 0; +} + +static int indycam_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + + v4l2_device_unregister_subdev(sd); + kfree(to_indycam(sd)); + return 0; +} + +static const struct i2c_device_id indycam_id[] = { + { "indycam", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, indycam_id); + +static struct i2c_driver indycam_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "indycam", + }, + .probe = indycam_probe, + .remove = indycam_remove, + .id_table = indycam_id, +}; + +module_i2c_driver(indycam_driver); diff --git a/drivers/staging/media/vino/indycam.h b/drivers/staging/media/vino/indycam.h new file mode 100644 index 000000000000..881f21c474c4 --- /dev/null +++ b/drivers/staging/media/vino/indycam.h @@ -0,0 +1,93 @@ +/* + * indycam.h - Silicon Graphics IndyCam digital camera driver + * + * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org> + * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _INDYCAM_H_ +#define _INDYCAM_H_ + +/* I2C address for the Guinness Camera */ +#define INDYCAM_ADDR 0x56 + +/* Camera version */ +#define CAMERA_VERSION_INDY 0x10 /* v1.0 */ +#define CAMERA_VERSION_MOOSE 0x12 /* v1.2 */ +#define INDYCAM_VERSION_MAJOR(x) (((x) & 0xf0) >> 4) +#define INDYCAM_VERSION_MINOR(x) ((x) & 0x0f) + +/* Register bus addresses */ +#define INDYCAM_REG_CONTROL 0x00 +#define INDYCAM_REG_SHUTTER 0x01 +#define INDYCAM_REG_GAIN 0x02 +#define INDYCAM_REG_BRIGHTNESS 0x03 /* read-only */ +#define INDYCAM_REG_RED_BALANCE 0x04 +#define INDYCAM_REG_BLUE_BALANCE 0x05 +#define INDYCAM_REG_RED_SATURATION 0x06 +#define INDYCAM_REG_BLUE_SATURATION 0x07 +#define INDYCAM_REG_GAMMA 0x08 +#define INDYCAM_REG_VERSION 0x0e /* read-only */ +#define INDYCAM_REG_RESET 0x0f /* write-only */ + +#define INDYCAM_REG_LED 0x46 +#define INDYCAM_REG_ORIENTATION 0x47 +#define INDYCAM_REG_BUTTON 0x48 + +/* Field definitions of registers */ +#define INDYCAM_CONTROL_AGCENA (1<<0) /* automatic gain control */ +#define INDYCAM_CONTROL_AWBCTL (1<<1) /* automatic white balance */ + /* 2-3 are reserved */ +#define INDYCAM_CONTROL_EVNFLD (1<<4) /* read-only */ + +#define INDYCAM_SHUTTER_10000 0x02 /* 1/10000 second */ +#define INDYCAM_SHUTTER_4000 0x04 /* 1/4000 second */ +#define INDYCAM_SHUTTER_2000 0x08 /* 1/2000 second */ +#define INDYCAM_SHUTTER_1000 0x10 /* 1/1000 second */ +#define INDYCAM_SHUTTER_500 0x20 /* 1/500 second */ +#define INDYCAM_SHUTTER_250 0x3f /* 1/250 second */ +#define INDYCAM_SHUTTER_125 0x7e /* 1/125 second */ +#define INDYCAM_SHUTTER_100 0x9e /* 1/100 second */ +#define INDYCAM_SHUTTER_60 0x00 /* 1/60 second */ + +#define INDYCAM_LED_ACTIVE 0x10 +#define INDYCAM_LED_INACTIVE 0x30 +#define INDYCAM_ORIENTATION_BOTTOM_TO_TOP 0x40 +#define INDYCAM_BUTTON_RELEASED 0x10 + +/* Values for controls */ +#define INDYCAM_SHUTTER_MIN 0x00 +#define INDYCAM_SHUTTER_MAX 0xff +#define INDYCAM_GAIN_MIN 0x00 +#define INDYCAM_GAIN_MAX 0xff +#define INDYCAM_RED_BALANCE_MIN 0x00 +#define INDYCAM_RED_BALANCE_MAX 0xff +#define INDYCAM_BLUE_BALANCE_MIN 0x00 +#define INDYCAM_BLUE_BALANCE_MAX 0xff +#define INDYCAM_RED_SATURATION_MIN 0x00 +#define INDYCAM_RED_SATURATION_MAX 0xff +#define INDYCAM_BLUE_SATURATION_MIN 0x00 +#define INDYCAM_BLUE_SATURATION_MAX 0xff +#define INDYCAM_GAMMA_MIN 0x00 +#define INDYCAM_GAMMA_MAX 0xff + +#define INDYCAM_AGC_DEFAULT 1 +#define INDYCAM_AWB_DEFAULT 0 +#define INDYCAM_SHUTTER_DEFAULT 0xff +#define INDYCAM_GAIN_DEFAULT 0x80 +#define INDYCAM_RED_BALANCE_DEFAULT 0x18 +#define INDYCAM_BLUE_BALANCE_DEFAULT 0xa4 +#define INDYCAM_RED_SATURATION_DEFAULT 0x80 +#define INDYCAM_BLUE_SATURATION_DEFAULT 0xc0 +#define INDYCAM_GAMMA_DEFAULT 0x80 + +/* Driver interface definitions */ + +#define INDYCAM_CONTROL_RED_SATURATION (V4L2_CID_PRIVATE_BASE + 0) +#define INDYCAM_CONTROL_BLUE_SATURATION (V4L2_CID_PRIVATE_BASE + 1) + +#endif diff --git a/drivers/staging/media/vino/saa7191.c b/drivers/staging/media/vino/saa7191.c new file mode 100644 index 000000000000..8e9699268a63 --- /dev/null +++ b/drivers/staging/media/vino/saa7191.c @@ -0,0 +1,649 @@ +/* + * saa7191.c - Philips SAA7191 video decoder driver + * + * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org> + * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/fs.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/major.h> +#include <linux/module.h> +#include <linux/mm.h> +#include <linux/slab.h> + +#include <linux/videodev2.h> +#include <linux/i2c.h> +#include <media/v4l2-device.h> + +#include "saa7191.h" + +#define SAA7191_MODULE_VERSION "0.0.5" + +MODULE_DESCRIPTION("Philips SAA7191 video decoder driver"); +MODULE_VERSION(SAA7191_MODULE_VERSION); +MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>"); +MODULE_LICENSE("GPL"); + + +// #define SAA7191_DEBUG + +#ifdef SAA7191_DEBUG +#define dprintk(x...) printk("SAA7191: " x); +#else +#define dprintk(x...) +#endif + +#define SAA7191_SYNC_COUNT 30 +#define SAA7191_SYNC_DELAY 100 /* milliseconds */ + +struct saa7191 { + struct v4l2_subdev sd; + + /* the register values are stored here as the actual + * I2C-registers are write-only */ + u8 reg[25]; + + int input; + v4l2_std_id norm; +}; + +static inline struct saa7191 *to_saa7191(struct v4l2_subdev *sd) +{ + return container_of(sd, struct saa7191, sd); +} + +static const u8 initseq[] = { + 0, /* Subaddress */ + + 0x50, /* (0x50) SAA7191_REG_IDEL */ + + /* 50 Hz signal timing */ + 0x30, /* (0x30) SAA7191_REG_HSYB */ + 0x00, /* (0x00) SAA7191_REG_HSYS */ + 0xe8, /* (0xe8) SAA7191_REG_HCLB */ + 0xb6, /* (0xb6) SAA7191_REG_HCLS */ + 0xf4, /* (0xf4) SAA7191_REG_HPHI */ + + /* control */ + SAA7191_LUMA_APER_1, /* (0x01) SAA7191_REG_LUMA - CVBS mode */ + 0x00, /* (0x00) SAA7191_REG_HUEC */ + 0xf8, /* (0xf8) SAA7191_REG_CKTQ */ + 0xf8, /* (0xf8) SAA7191_REG_CKTS */ + 0x90, /* (0x90) SAA7191_REG_PLSE */ + 0x90, /* (0x90) SAA7191_REG_SESE */ + 0x00, /* (0x00) SAA7191_REG_GAIN */ + SAA7191_STDC_NFEN | SAA7191_STDC_HRMV, /* (0x0c) SAA7191_REG_STDC + * - not SECAM, + * slow time constant */ + SAA7191_IOCK_OEDC | SAA7191_IOCK_OEHS | SAA7191_IOCK_OEVS + | SAA7191_IOCK_OEDY, /* (0x78) SAA7191_REG_IOCK + * - chroma from CVBS, GPSW1 & 2 off */ + SAA7191_CTL3_AUFD | SAA7191_CTL3_SCEN | SAA7191_CTL3_OFTS + | SAA7191_CTL3_YDEL0, /* (0x99) SAA7191_REG_CTL3 + * - automatic field detection */ + 0x00, /* (0x00) SAA7191_REG_CTL4 */ + 0x2c, /* (0x2c) SAA7191_REG_CHCV - PAL nominal value */ + 0x00, /* unused */ + 0x00, /* unused */ + + /* 60 Hz signal timing */ + 0x34, /* (0x34) SAA7191_REG_HS6B */ + 0x0a, /* (0x0a) SAA7191_REG_HS6S */ + 0xf4, /* (0xf4) SAA7191_REG_HC6B */ + 0xce, /* (0xce) SAA7191_REG_HC6S */ + 0xf4, /* (0xf4) SAA7191_REG_HP6I */ +}; + +/* SAA7191 register handling */ + +static u8 saa7191_read_reg(struct v4l2_subdev *sd, u8 reg) +{ + return to_saa7191(sd)->reg[reg]; +} + +static int saa7191_read_status(struct v4l2_subdev *sd, u8 *value) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret; + + ret = i2c_master_recv(client, value, 1); + if (ret < 0) { + printk(KERN_ERR "SAA7191: saa7191_read_status(): read failed\n"); + return ret; + } + + return 0; +} + + +static int saa7191_write_reg(struct v4l2_subdev *sd, u8 reg, u8 value) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + to_saa7191(sd)->reg[reg] = value; + return i2c_smbus_write_byte_data(client, reg, value); +} + +/* the first byte of data must be the first subaddress number (register) */ +static int saa7191_write_block(struct v4l2_subdev *sd, + u8 length, const u8 *data) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct saa7191 *decoder = to_saa7191(sd); + int i; + int ret; + + for (i = 0; i < (length - 1); i++) { + decoder->reg[data[0] + i] = data[i + 1]; + } + + ret = i2c_master_send(client, data, length); + if (ret < 0) { + printk(KERN_ERR "SAA7191: saa7191_write_block(): " + "write failed\n"); + return ret; + } + + return 0; +} + +/* Helper functions */ + +static int saa7191_s_routing(struct v4l2_subdev *sd, + u32 input, u32 output, u32 config) +{ + struct saa7191 *decoder = to_saa7191(sd); + u8 luma = saa7191_read_reg(sd, SAA7191_REG_LUMA); + u8 iock = saa7191_read_reg(sd, SAA7191_REG_IOCK); + int err; + + switch (input) { + case SAA7191_INPUT_COMPOSITE: /* Set Composite input */ + iock &= ~(SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW1 + | SAA7191_IOCK_GPSW2); + /* Chrominance trap active */ + luma &= ~SAA7191_LUMA_BYPS; + break; + case SAA7191_INPUT_SVIDEO: /* Set S-Video input */ + iock |= SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW2; + /* Chrominance trap bypassed */ + luma |= SAA7191_LUMA_BYPS; + break; + default: + return -EINVAL; + } + + err = saa7191_write_reg(sd, SAA7191_REG_LUMA, luma); + if (err) + return -EIO; + err = saa7191_write_reg(sd, SAA7191_REG_IOCK, iock); + if (err) + return -EIO; + + decoder->input = input; + + return 0; +} + +static int saa7191_s_std(struct v4l2_subdev *sd, v4l2_std_id norm) +{ + struct saa7191 *decoder = to_saa7191(sd); + u8 stdc = saa7191_read_reg(sd, SAA7191_REG_STDC); + u8 ctl3 = saa7191_read_reg(sd, SAA7191_REG_CTL3); + u8 chcv = saa7191_read_reg(sd, SAA7191_REG_CHCV); + int err; + + if (norm & V4L2_STD_PAL) { + stdc &= ~SAA7191_STDC_SECS; + ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL); + chcv = SAA7191_CHCV_PAL; + } else if (norm & V4L2_STD_NTSC) { + stdc &= ~SAA7191_STDC_SECS; + ctl3 &= ~SAA7191_CTL3_AUFD; + ctl3 |= SAA7191_CTL3_FSEL; + chcv = SAA7191_CHCV_NTSC; + } else if (norm & V4L2_STD_SECAM) { + stdc |= SAA7191_STDC_SECS; + ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL); + chcv = SAA7191_CHCV_PAL; + } else { + return -EINVAL; + } + + err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3); + if (err) + return -EIO; + err = saa7191_write_reg(sd, SAA7191_REG_STDC, stdc); + if (err) + return -EIO; + err = saa7191_write_reg(sd, SAA7191_REG_CHCV, chcv); + if (err) + return -EIO; + + decoder->norm = norm; + + dprintk("ctl3: %02x stdc: %02x chcv: %02x\n", ctl3, + stdc, chcv); + dprintk("norm: %llx\n", norm); + + return 0; +} + +static int saa7191_wait_for_signal(struct v4l2_subdev *sd, u8 *status) +{ + int i = 0; + + dprintk("Checking for signal...\n"); + + for (i = 0; i < SAA7191_SYNC_COUNT; i++) { + if (saa7191_read_status(sd, status)) + return -EIO; + + if (((*status) & SAA7191_STATUS_HLCK) == 0) { + dprintk("Signal found\n"); + return 0; + } + + msleep(SAA7191_SYNC_DELAY); + } + + dprintk("No signal\n"); + + return -EBUSY; +} + +static int saa7191_querystd(struct v4l2_subdev *sd, v4l2_std_id *norm) +{ + struct saa7191 *decoder = to_saa7191(sd); + u8 stdc = saa7191_read_reg(sd, SAA7191_REG_STDC); + u8 ctl3 = saa7191_read_reg(sd, SAA7191_REG_CTL3); + u8 status; + v4l2_std_id old_norm = decoder->norm; + int err = 0; + + dprintk("SAA7191 extended signal auto-detection...\n"); + + *norm &= V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM; + stdc &= ~SAA7191_STDC_SECS; + ctl3 &= ~(SAA7191_CTL3_FSEL); + + err = saa7191_write_reg(sd, SAA7191_REG_STDC, stdc); + if (err) { + err = -EIO; + goto out; + } + err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3); + if (err) { + err = -EIO; + goto out; + } + + ctl3 |= SAA7191_CTL3_AUFD; + err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3); + if (err) { + err = -EIO; + goto out; + } + + msleep(SAA7191_SYNC_DELAY); + + err = saa7191_wait_for_signal(sd, &status); + if (err) + goto out; + + if (status & SAA7191_STATUS_FIDT) { + /* 60Hz signal -> NTSC */ + dprintk("60Hz signal: NTSC\n"); + *norm &= V4L2_STD_NTSC; + return 0; + } + + /* 50Hz signal */ + dprintk("50Hz signal: Trying PAL...\n"); + + /* try PAL first */ + err = saa7191_s_std(sd, V4L2_STD_PAL); + if (err) + goto out; + + msleep(SAA7191_SYNC_DELAY); + + err = saa7191_wait_for_signal(sd, &status); + if (err) + goto out; + + /* not 50Hz ? */ + if (status & SAA7191_STATUS_FIDT) { + dprintk("No 50Hz signal\n"); + saa7191_s_std(sd, old_norm); + *norm = V4L2_STD_UNKNOWN; + return 0; + } + + if (status & SAA7191_STATUS_CODE) { + dprintk("PAL\n"); + *norm &= V4L2_STD_PAL; + return saa7191_s_std(sd, old_norm); + } + + dprintk("No color detected with PAL - Trying SECAM...\n"); + + /* no color detected ? -> try SECAM */ + err = saa7191_s_std(sd, V4L2_STD_SECAM); + if (err) + goto out; + + msleep(SAA7191_SYNC_DELAY); + + err = saa7191_wait_for_signal(sd, &status); + if (err) + goto out; + + /* not 50Hz ? */ + if (status & SAA7191_STATUS_FIDT) { + dprintk("No 50Hz signal\n"); + *norm = V4L2_STD_UNKNOWN; + goto out; + } + + if (status & SAA7191_STATUS_CODE) { + /* Color detected -> SECAM */ + dprintk("SECAM\n"); + *norm &= V4L2_STD_SECAM; + return saa7191_s_std(sd, old_norm); + } + + dprintk("No color detected with SECAM - Going back to PAL.\n"); + *norm = V4L2_STD_UNKNOWN; + +out: + return saa7191_s_std(sd, old_norm); +} + +static int saa7191_autodetect_norm(struct v4l2_subdev *sd) +{ + u8 status; + + dprintk("SAA7191 signal auto-detection...\n"); + + dprintk("Reading status...\n"); + + if (saa7191_read_status(sd, &status)) + return -EIO; + + dprintk("Checking for signal...\n"); + + /* no signal ? */ + if (status & SAA7191_STATUS_HLCK) { + dprintk("No signal\n"); + return -EBUSY; + } + + dprintk("Signal found\n"); + + if (status & SAA7191_STATUS_FIDT) { + /* 60hz signal -> NTSC */ + dprintk("NTSC\n"); + return saa7191_s_std(sd, V4L2_STD_NTSC); + } else { + /* 50hz signal -> PAL */ + dprintk("PAL\n"); + return saa7191_s_std(sd, V4L2_STD_PAL); + } +} + +static int saa7191_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + u8 reg; + int ret = 0; + + switch (ctrl->id) { + case SAA7191_CONTROL_BANDPASS: + case SAA7191_CONTROL_BANDPASS_WEIGHT: + case SAA7191_CONTROL_CORING: + reg = saa7191_read_reg(sd, SAA7191_REG_LUMA); + switch (ctrl->id) { + case SAA7191_CONTROL_BANDPASS: + ctrl->value = ((s32)reg & SAA7191_LUMA_BPSS_MASK) + >> SAA7191_LUMA_BPSS_SHIFT; + break; + case SAA7191_CONTROL_BANDPASS_WEIGHT: + ctrl->value = ((s32)reg & SAA7191_LUMA_APER_MASK) + >> SAA7191_LUMA_APER_SHIFT; + break; + case SAA7191_CONTROL_CORING: + ctrl->value = ((s32)reg & SAA7191_LUMA_CORI_MASK) + >> SAA7191_LUMA_CORI_SHIFT; + break; + } + break; + case SAA7191_CONTROL_FORCE_COLOUR: + case SAA7191_CONTROL_CHROMA_GAIN: + reg = saa7191_read_reg(sd, SAA7191_REG_GAIN); + if (ctrl->id == SAA7191_CONTROL_FORCE_COLOUR) + ctrl->value = ((s32)reg & SAA7191_GAIN_COLO) ? 1 : 0; + else + ctrl->value = ((s32)reg & SAA7191_GAIN_LFIS_MASK) + >> SAA7191_GAIN_LFIS_SHIFT; + break; + case V4L2_CID_HUE: + reg = saa7191_read_reg(sd, SAA7191_REG_HUEC); + if (reg < 0x80) + reg += 0x80; + else + reg -= 0x80; + ctrl->value = (s32)reg; + break; + case SAA7191_CONTROL_VTRC: + reg = saa7191_read_reg(sd, SAA7191_REG_STDC); + ctrl->value = ((s32)reg & SAA7191_STDC_VTRC) ? 1 : 0; + break; + case SAA7191_CONTROL_LUMA_DELAY: + reg = saa7191_read_reg(sd, SAA7191_REG_CTL3); + ctrl->value = ((s32)reg & SAA7191_CTL3_YDEL_MASK) + >> SAA7191_CTL3_YDEL_SHIFT; + if (ctrl->value >= 4) + ctrl->value -= 8; + break; + case SAA7191_CONTROL_VNR: + reg = saa7191_read_reg(sd, SAA7191_REG_CTL4); + ctrl->value = ((s32)reg & SAA7191_CTL4_VNOI_MASK) + >> SAA7191_CTL4_VNOI_SHIFT; + break; + default: + ret = -EINVAL; + } + + return ret; +} + +static int saa7191_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + u8 reg; + int ret = 0; + + switch (ctrl->id) { + case SAA7191_CONTROL_BANDPASS: + case SAA7191_CONTROL_BANDPASS_WEIGHT: + case SAA7191_CONTROL_CORING: + reg = saa7191_read_reg(sd, SAA7191_REG_LUMA); + switch (ctrl->id) { + case SAA7191_CONTROL_BANDPASS: + reg &= ~SAA7191_LUMA_BPSS_MASK; + reg |= (ctrl->value << SAA7191_LUMA_BPSS_SHIFT) + & SAA7191_LUMA_BPSS_MASK; + break; + case SAA7191_CONTROL_BANDPASS_WEIGHT: + reg &= ~SAA7191_LUMA_APER_MASK; + reg |= (ctrl->value << SAA7191_LUMA_APER_SHIFT) + & SAA7191_LUMA_APER_MASK; + break; + case SAA7191_CONTROL_CORING: + reg &= ~SAA7191_LUMA_CORI_MASK; + reg |= (ctrl->value << SAA7191_LUMA_CORI_SHIFT) + & SAA7191_LUMA_CORI_MASK; + break; + } + ret = saa7191_write_reg(sd, SAA7191_REG_LUMA, reg); + break; + case SAA7191_CONTROL_FORCE_COLOUR: + case SAA7191_CONTROL_CHROMA_GAIN: + reg = saa7191_read_reg(sd, SAA7191_REG_GAIN); + if (ctrl->id == SAA7191_CONTROL_FORCE_COLOUR) { + if (ctrl->value) + reg |= SAA7191_GAIN_COLO; + else + reg &= ~SAA7191_GAIN_COLO; + } else { + reg &= ~SAA7191_GAIN_LFIS_MASK; + reg |= (ctrl->value << SAA7191_GAIN_LFIS_SHIFT) + & SAA7191_GAIN_LFIS_MASK; + } + ret = saa7191_write_reg(sd, SAA7191_REG_GAIN, reg); + break; + case V4L2_CID_HUE: + reg = ctrl->value & 0xff; + if (reg < 0x80) + reg += 0x80; + else + reg -= 0x80; + ret = saa7191_write_reg(sd, SAA7191_REG_HUEC, reg); + break; + case SAA7191_CONTROL_VTRC: + reg = saa7191_read_reg(sd, SAA7191_REG_STDC); + if (ctrl->value) + reg |= SAA7191_STDC_VTRC; + else + reg &= ~SAA7191_STDC_VTRC; + ret = saa7191_write_reg(sd, SAA7191_REG_STDC, reg); + break; + case SAA7191_CONTROL_LUMA_DELAY: { + s32 value = ctrl->value; + if (value < 0) + value += 8; + reg = saa7191_read_reg(sd, SAA7191_REG_CTL3); + reg &= ~SAA7191_CTL3_YDEL_MASK; + reg |= (value << SAA7191_CTL3_YDEL_SHIFT) + & SAA7191_CTL3_YDEL_MASK; + ret = saa7191_write_reg(sd, SAA7191_REG_CTL3, reg); + break; + } + case SAA7191_CONTROL_VNR: + reg = saa7191_read_reg(sd, SAA7191_REG_CTL4); + reg &= ~SAA7191_CTL4_VNOI_MASK; + reg |= (ctrl->value << SAA7191_CTL4_VNOI_SHIFT) + & SAA7191_CTL4_VNOI_MASK; + ret = saa7191_write_reg(sd, SAA7191_REG_CTL4, reg); + break; + default: + ret = -EINVAL; + } + + return ret; +} + +/* I2C-interface */ + +static int saa7191_g_input_status(struct v4l2_subdev *sd, u32 *status) +{ + u8 status_reg; + int res = V4L2_IN_ST_NO_SIGNAL; + + if (saa7191_read_status(sd, &status_reg)) + return -EIO; + if ((status_reg & SAA7191_STATUS_HLCK) == 0) + res = 0; + if (!(status_reg & SAA7191_STATUS_CODE)) + res |= V4L2_IN_ST_NO_COLOR; + *status = res; + return 0; +} + + +/* ----------------------------------------------------------------------- */ + +static const struct v4l2_subdev_core_ops saa7191_core_ops = { + .g_ctrl = saa7191_g_ctrl, + .s_ctrl = saa7191_s_ctrl, +}; + +static const struct v4l2_subdev_video_ops saa7191_video_ops = { + .s_std = saa7191_s_std, + .s_routing = saa7191_s_routing, + .querystd = saa7191_querystd, + .g_input_status = saa7191_g_input_status, +}; + +static const struct v4l2_subdev_ops saa7191_ops = { + .core = &saa7191_core_ops, + .video = &saa7191_video_ops, +}; + +static int saa7191_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + int err = 0; + struct saa7191 *decoder; + struct v4l2_subdev *sd; + + v4l_info(client, "chip found @ 0x%x (%s)\n", + client->addr << 1, client->adapter->name); + + decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL); + if (!decoder) + return -ENOMEM; + + sd = &decoder->sd; + v4l2_i2c_subdev_init(sd, client, &saa7191_ops); + + err = saa7191_write_block(sd, sizeof(initseq), initseq); + if (err) { + printk(KERN_ERR "SAA7191 initialization failed\n"); + return err; + } + + printk(KERN_INFO "SAA7191 initialized\n"); + + decoder->input = SAA7191_INPUT_COMPOSITE; + decoder->norm = V4L2_STD_PAL; + + err = saa7191_autodetect_norm(sd); + if (err && (err != -EBUSY)) + printk(KERN_ERR "SAA7191: Signal auto-detection failed\n"); + + return 0; +} + +static int saa7191_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + + v4l2_device_unregister_subdev(sd); + return 0; +} + +static const struct i2c_device_id saa7191_id[] = { + { "saa7191", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, saa7191_id); + +static struct i2c_driver saa7191_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "saa7191", + }, + .probe = saa7191_probe, + .remove = saa7191_remove, + .id_table = saa7191_id, +}; + +module_i2c_driver(saa7191_driver); diff --git a/drivers/staging/media/vino/saa7191.h b/drivers/staging/media/vino/saa7191.h new file mode 100644 index 000000000000..803c74d6066f --- /dev/null +++ b/drivers/staging/media/vino/saa7191.h @@ -0,0 +1,245 @@ +/* + * saa7191.h - Philips SAA7191 video decoder driver + * + * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org> + * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _SAA7191_H_ +#define _SAA7191_H_ + +/* Philips SAA7191 DMSD I2C bus address */ +#define SAA7191_ADDR 0x8a + +/* Register subaddresses. */ +#define SAA7191_REG_IDEL 0x00 +#define SAA7191_REG_HSYB 0x01 +#define SAA7191_REG_HSYS 0x02 +#define SAA7191_REG_HCLB 0x03 +#define SAA7191_REG_HCLS 0x04 +#define SAA7191_REG_HPHI 0x05 +#define SAA7191_REG_LUMA 0x06 +#define SAA7191_REG_HUEC 0x07 +#define SAA7191_REG_CKTQ 0x08 /* bits 3-7 */ +#define SAA7191_REG_CKTS 0x09 /* bits 3-7 */ +#define SAA7191_REG_PLSE 0x0a +#define SAA7191_REG_SESE 0x0b +#define SAA7191_REG_GAIN 0x0c +#define SAA7191_REG_STDC 0x0d +#define SAA7191_REG_IOCK 0x0e +#define SAA7191_REG_CTL3 0x0f +#define SAA7191_REG_CTL4 0x10 +#define SAA7191_REG_CHCV 0x11 +#define SAA7191_REG_HS6B 0x14 +#define SAA7191_REG_HS6S 0x15 +#define SAA7191_REG_HC6B 0x16 +#define SAA7191_REG_HC6S 0x17 +#define SAA7191_REG_HP6I 0x18 +#define SAA7191_REG_STATUS 0xff /* not really a subaddress */ + +/* Status Register definitions */ +#define SAA7191_STATUS_CODE 0x01 /* color detected flag */ +#define SAA7191_STATUS_FIDT 0x20 /* signal type 50/60 Hz */ +#define SAA7191_STATUS_HLCK 0x40 /* PLL unlocked(1)/locked(0) */ +#define SAA7191_STATUS_STTC 0x80 /* tv/vtr time constant */ + +/* Luminance Control Register definitions */ +/* input mode select bit: + * 0=CVBS (chrominance trap active), 1=S-Video (trap bypassed) */ +#define SAA7191_LUMA_BYPS 0x80 +/* pre-filter (only when chrominance trap is active) */ +#define SAA7191_LUMA_PREF 0x40 +/* aperture bandpass to select different characteristics with maximums + * (bits 4-5) */ +#define SAA7191_LUMA_BPSS_MASK 0x30 +#define SAA7191_LUMA_BPSS_SHIFT 4 +#define SAA7191_LUMA_BPSS_3 0x30 +#define SAA7191_LUMA_BPSS_2 0x20 +#define SAA7191_LUMA_BPSS_1 0x10 +#define SAA7191_LUMA_BPSS_0 0x00 +/* coring range for high frequency components according to 8-bit luminance + * (bits 2-3) + * 0=coring off, n= (+-)n LSB */ +#define SAA7191_LUMA_CORI_MASK 0x0c +#define SAA7191_LUMA_CORI_SHIFT 2 +#define SAA7191_LUMA_CORI_3 0x0c +#define SAA7191_LUMA_CORI_2 0x08 +#define SAA7191_LUMA_CORI_1 0x04 +#define SAA7191_LUMA_CORI_0 0x00 +/* aperture bandpass filter weights high frequency components of luminance + * signal (bits 0-1) + * 0=factor 0, 1=0.25, 2=0.5, 3=1 */ +#define SAA7191_LUMA_APER_MASK 0x03 +#define SAA7191_LUMA_APER_SHIFT 0 +#define SAA7191_LUMA_APER_3 0x03 +#define SAA7191_LUMA_APER_2 0x02 +#define SAA7191_LUMA_APER_1 0x01 +#define SAA7191_LUMA_APER_0 0x00 + +/* Chrominance Gain Control Settings Register definitions */ +/* colour on: 0=automatic colour-killer enabled, 1=forced colour on */ +#define SAA7191_GAIN_COLO 0x80 +/* chrominance gain control (AGC filter) + * 0=loop filter time constant slow, 1=medium, 2=fast, 3=actual gain */ +#define SAA7191_GAIN_LFIS_MASK 0x60 +#define SAA7191_GAIN_LFIS_SHIFT 5 +#define SAA7191_GAIN_LFIS_3 0x60 +#define SAA7191_GAIN_LFIS_2 0x40 +#define SAA7191_GAIN_LFIS_1 0x20 +#define SAA7191_GAIN_LFIS_0 0x00 + +/* Standard/Mode Control Register definitions */ +/* tv/vtr mode bit: 0=TV mode (slow time constant), + * 1=VTR mode (fast time constant) */ +#define SAA7191_STDC_VTRC 0x80 +/* SAA7191B-specific functions enable (RTCO, ODD and GPSW0 outputs) + * 0=outputs set to high-impedance (circuit equals SAA7191), 1=enabled */ +#define SAA7191_STDC_NFEN 0x08 +/* HREF generation: 0=like SAA7191, 1=HREF is 8xLLC2 clocks earlier */ +#define SAA7191_STDC_HRMV 0x04 +/* general purpose switch 0 + * (not used with VINO afaik) */ +#define SAA7191_STDC_GPSW0 0x02 +/* SECAM mode bit: 0=other standards, 1=SECAM */ +#define SAA7191_STDC_SECS 0x01 + +/* I/O and Clock Control Register definitions */ +/* horizontal clock PLL: 0=PLL closed, + * 1=PLL circuit open and horizontal freq fixed */ +#define SAA7191_IOCK_HPLL 0x80 +/* colour-difference output enable (outputs UV0-UV7) */ +#define SAA7191_IOCK_OEDC 0x40 +/* H-sync output enable */ +#define SAA7191_IOCK_OEHS 0x20 +/* V-sync output enable */ +#define SAA7191_IOCK_OEVS 0x10 +/* luminance output enable (outputs Y0-Y7) */ +#define SAA7191_IOCK_OEDY 0x08 +/* S-VHS bit (chrominance from CVBS or from chrominance input): + * 0=controlled by BYPS-bit, 1=from chrominance input */ +#define SAA7191_IOCK_CHRS 0x04 +/* general purpose switch 2 + * VINO-specific: 0=used with CVBS, 1=used with S-Video */ +#define SAA7191_IOCK_GPSW2 0x02 +/* general purpose switch 1 */ +/* VINO-specific: 0=always, 1=not used!*/ +#define SAA7191_IOCK_GPSW1 0x01 + +/* Miscellaneous Control #1 Register definitions */ +/* automatic field detection (50/60Hz standard) */ +#define SAA7191_CTL3_AUFD 0x80 +/* field select: (if AUFD=0) + * 0=50Hz (625 lines), 1=60Hz (525 lines) */ +#define SAA7191_CTL3_FSEL 0x40 +/* SECAM cross-colour reduction enable */ +#define SAA7191_CTL3_SXCR 0x20 +/* sync and clamping pulse enable (HCL and HSY outputs) */ +#define SAA7191_CTL3_SCEN 0x10 +/* output format: 0=4:1:1, 1=4:2:2 (4:2:2 for VINO) */ +#define SAA7191_CTL3_OFTS 0x08 +/* luminance delay compensation + * 0=0*2/LLC, 1=+1*2/LLC, 2=+2*2/LLC, 3=+3*2/LLC, + * 4=-4*2/LLC, 5=-3*2/LLC, 6=-2*2/LLC, 7=-1*2/LLC + * step size = 2/LLC = 67.8ns for 50Hz, 81.5ns for 60Hz */ +#define SAA7191_CTL3_YDEL_MASK 0x07 +#define SAA7191_CTL3_YDEL_SHIFT 0 +#define SAA7191_CTL3_YDEL2 0x04 +#define SAA7191_CTL3_YDEL1 0x02 +#define SAA7191_CTL3_YDEL0 0x01 + +/* Miscellaneous Control #2 Register definitions */ +/* select HREF position + * 0=normal, HREF is matched to YUV output port, + * 1=HREF is matched to CVBS input port */ +#define SAA7191_CTL4_HRFS 0x04 +/* vertical noise reduction + * 0=normal, 1=searching window, 2=auto-deflection, 3=reduction bypassed */ +#define SAA7191_CTL4_VNOI_MASK 0x03 +#define SAA7191_CTL4_VNOI_SHIFT 0 +#define SAA7191_CTL4_VNOI_3 0x03 +#define SAA7191_CTL4_VNOI_2 0x02 +#define SAA7191_CTL4_VNOI_1 0x01 +#define SAA7191_CTL4_VNOI_0 0x00 + +/* Chrominance Gain Control Register definitions + * - for QAM-modulated input signals, effects output amplitude + * (SECAM gain fixed) + * (nominal values for UV CCIR level) */ +#define SAA7191_CHCV_NTSC 0x2c +#define SAA7191_CHCV_PAL 0x59 + +/* Driver interface definitions */ +#define SAA7191_INPUT_COMPOSITE 0 +#define SAA7191_INPUT_SVIDEO 1 + +#define SAA7191_NORM_PAL 1 +#define SAA7191_NORM_NTSC 2 +#define SAA7191_NORM_SECAM 3 + +struct saa7191_status { + /* 0=no signal, 1=signal detected */ + int signal; + /* 0=50hz (pal) signal, 1=60hz (ntsc) signal */ + int signal_60hz; + /* 0=no color detected, 1=color detected */ + int color; + + /* current SAA7191_INPUT_ */ + int input; + /* current SAA7191_NORM_ */ + int norm; +}; + +#define SAA7191_BANDPASS_MIN 0x00 +#define SAA7191_BANDPASS_MAX 0x03 +#define SAA7191_BANDPASS_DEFAULT 0x00 + +#define SAA7191_BANDPASS_WEIGHT_MIN 0x00 +#define SAA7191_BANDPASS_WEIGHT_MAX 0x03 +#define SAA7191_BANDPASS_WEIGHT_DEFAULT 0x01 + +#define SAA7191_CORING_MIN 0x00 +#define SAA7191_CORING_MAX 0x03 +#define SAA7191_CORING_DEFAULT 0x00 + +#define SAA7191_HUE_MIN 0x00 +#define SAA7191_HUE_MAX 0xff +#define SAA7191_HUE_DEFAULT 0x80 + +#define SAA7191_VTRC_MIN 0x00 +#define SAA7191_VTRC_MAX 0x01 +#define SAA7191_VTRC_DEFAULT 0x00 + +#define SAA7191_FORCE_COLOUR_MIN 0x00 +#define SAA7191_FORCE_COLOUR_MAX 0x01 +#define SAA7191_FORCE_COLOUR_DEFAULT 0x00 + +#define SAA7191_CHROMA_GAIN_MIN 0x00 +#define SAA7191_CHROMA_GAIN_MAX 0x03 +#define SAA7191_CHROMA_GAIN_DEFAULT 0x00 + +#define SAA7191_LUMA_DELAY_MIN -0x04 +#define SAA7191_LUMA_DELAY_MAX 0x03 +#define SAA7191_LUMA_DELAY_DEFAULT 0x01 + +#define SAA7191_VNR_MIN 0x00 +#define SAA7191_VNR_MAX 0x03 +#define SAA7191_VNR_DEFAULT 0x00 + +#define SAA7191_CONTROL_BANDPASS (V4L2_CID_PRIVATE_BASE + 0) +#define SAA7191_CONTROL_BANDPASS_WEIGHT (V4L2_CID_PRIVATE_BASE + 1) +#define SAA7191_CONTROL_CORING (V4L2_CID_PRIVATE_BASE + 2) +#define SAA7191_CONTROL_FORCE_COLOUR (V4L2_CID_PRIVATE_BASE + 3) +#define SAA7191_CONTROL_CHROMA_GAIN (V4L2_CID_PRIVATE_BASE + 4) +#define SAA7191_CONTROL_VTRC (V4L2_CID_PRIVATE_BASE + 5) +#define SAA7191_CONTROL_LUMA_DELAY (V4L2_CID_PRIVATE_BASE + 6) +#define SAA7191_CONTROL_VNR (V4L2_CID_PRIVATE_BASE + 7) + +#define DECODER_SAA7191_GET_STATUS _IOR('d', 195, struct saa7191_status) +#define DECODER_SAA7191_SET_NORM _IOW('d', 196, int) + +#endif diff --git a/drivers/staging/media/vino/vino.c b/drivers/staging/media/vino/vino.c new file mode 100644 index 000000000000..2c85357f774d --- /dev/null +++ b/drivers/staging/media/vino/vino.c @@ -0,0 +1,4345 @@ +/* + * Driver for the VINO (Video In No Out) system found in SGI Indys. + * + * This file is subject to the terms and conditions of the GNU General Public + * License version 2 as published by the Free Software Foundation. + * + * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi> + * + * Based on the previous version of the driver for 2.4 kernels by: + * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org> + * + * v4l2_device/v4l2_subdev conversion by: + * Copyright (C) 2009 Hans Verkuil <hverkuil@xs4all.nl> + * + * Note: this conversion is untested! Please contact the linux-media + * mailinglist if you can test this, together with the test results. + */ + +/* + * TODO: + * - remove "mark pages reserved-hacks" from memory allocation code + * and implement fault() + * - check decimation, calculating and reporting image size when + * using decimation + * - implement read(), user mode buffers and overlay (?) + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/dma-mapping.h> +#include <linux/errno.h> +#include <linux/fs.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/mm.h> +#include <linux/time.h> +#include <linux/kmod.h> + +#include <linux/i2c.h> + +#include <linux/videodev2.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <linux/mutex.h> + +#include <asm/paccess.h> +#include <asm/io.h> +#include <asm/sgi/ip22.h> +#include <asm/sgi/mc.h> + +#include "vino.h" +#include "saa7191.h" +#include "indycam.h" + +/* Uncomment the following line to get lots and lots of (mostly useless) + * debug info. + * Note that the debug output also slows down the driver significantly */ +// #define VINO_DEBUG +// #define VINO_DEBUG_INT + +#define VINO_MODULE_VERSION "0.0.7" + +MODULE_DESCRIPTION("SGI VINO Video4Linux2 driver"); +MODULE_VERSION(VINO_MODULE_VERSION); +MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>"); +MODULE_LICENSE("GPL"); + +#ifdef VINO_DEBUG +#define dprintk(x...) printk("VINO: " x); +#else +#define dprintk(x...) +#endif + +#define VINO_NO_CHANNEL 0 +#define VINO_CHANNEL_A 1 +#define VINO_CHANNEL_B 2 + +#define VINO_PAL_WIDTH 768 +#define VINO_PAL_HEIGHT 576 +#define VINO_NTSC_WIDTH 640 +#define VINO_NTSC_HEIGHT 480 + +#define VINO_MIN_WIDTH 32 +#define VINO_MIN_HEIGHT 32 + +#define VINO_CLIPPING_START_ODD_D1 1 +#define VINO_CLIPPING_START_ODD_PAL 15 +#define VINO_CLIPPING_START_ODD_NTSC 12 + +#define VINO_CLIPPING_START_EVEN_D1 2 +#define VINO_CLIPPING_START_EVEN_PAL 15 +#define VINO_CLIPPING_START_EVEN_NTSC 12 + +#define VINO_INPUT_CHANNEL_COUNT 3 + +/* the number is the index for vino_inputs */ +#define VINO_INPUT_NONE -1 +#define VINO_INPUT_COMPOSITE 0 +#define VINO_INPUT_SVIDEO 1 +#define VINO_INPUT_D1 2 + +#define VINO_PAGE_RATIO (PAGE_SIZE / VINO_PAGE_SIZE) + +#define VINO_FIFO_THRESHOLD_DEFAULT 16 + +#define VINO_FRAMEBUFFER_SIZE ((VINO_PAL_WIDTH \ + * VINO_PAL_HEIGHT * 4 \ + + 3 * PAGE_SIZE) & ~(PAGE_SIZE - 1)) + +#define VINO_FRAMEBUFFER_COUNT_MAX 8 + +#define VINO_FRAMEBUFFER_UNUSED 0 +#define VINO_FRAMEBUFFER_IN_USE 1 +#define VINO_FRAMEBUFFER_READY 2 + +#define VINO_QUEUE_ERROR -1 +#define VINO_QUEUE_MAGIC 0x20050125 + +#define VINO_MEMORY_NONE 0 +#define VINO_MEMORY_MMAP 1 +#define VINO_MEMORY_USERPTR 2 + +#define VINO_DUMMY_DESC_COUNT 4 +#define VINO_DESC_FETCH_DELAY 5 /* microseconds */ + +#define VINO_MAX_FRAME_SKIP_COUNT 128 + +/* the number is the index for vino_data_formats */ +#define VINO_DATA_FMT_NONE -1 +#define VINO_DATA_FMT_GREY 0 +#define VINO_DATA_FMT_RGB332 1 +#define VINO_DATA_FMT_RGB32 2 +#define VINO_DATA_FMT_YUV 3 + +#define VINO_DATA_FMT_COUNT 4 + +/* the number is the index for vino_data_norms */ +#define VINO_DATA_NORM_NONE -1 +#define VINO_DATA_NORM_NTSC 0 +#define VINO_DATA_NORM_PAL 1 +#define VINO_DATA_NORM_SECAM 2 +#define VINO_DATA_NORM_D1 3 + +#define VINO_DATA_NORM_COUNT 4 + +/* I2C controller flags */ +#define SGI_I2C_FORCE_IDLE (0 << 0) +#define SGI_I2C_NOT_IDLE (1 << 0) +#define SGI_I2C_WRITE (0 << 1) +#define SGI_I2C_READ (1 << 1) +#define SGI_I2C_RELEASE_BUS (0 << 2) +#define SGI_I2C_HOLD_BUS (1 << 2) +#define SGI_I2C_XFER_DONE (0 << 4) +#define SGI_I2C_XFER_BUSY (1 << 4) +#define SGI_I2C_ACK (0 << 5) +#define SGI_I2C_NACK (1 << 5) +#define SGI_I2C_BUS_OK (0 << 7) +#define SGI_I2C_BUS_ERR (1 << 7) + +/* Internal data structure definitions */ + +struct vino_input { + char *name; + v4l2_std_id std; +}; + +struct vino_clipping { + unsigned int left, right, top, bottom; +}; + +struct vino_data_format { + /* the description */ + char *description; + /* bytes per pixel */ + unsigned int bpp; + /* V4L2 fourcc code */ + __u32 pixelformat; + /* V4L2 colorspace (duh!) */ + enum v4l2_colorspace colorspace; +}; + +struct vino_data_norm { + char *description; + unsigned int width, height; + struct vino_clipping odd; + struct vino_clipping even; + + v4l2_std_id std; + unsigned int fps_min, fps_max; + __u32 framelines; +}; + +struct vino_descriptor_table { + /* the number of PAGE_SIZE sized pages in the buffer */ + unsigned int page_count; + /* virtual (kmalloc'd) pointers to the actual data + * (in PAGE_SIZE chunks, used with mmap streaming) */ + unsigned long *virtual; + + /* cpu address for the VINO descriptor table + * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ + unsigned long *dma_cpu; + /* dma address for the VINO descriptor table + * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ + dma_addr_t dma; +}; + +struct vino_framebuffer { + /* identifier nubmer */ + unsigned int id; + /* the length of the whole buffer */ + unsigned int size; + /* the length of actual data in buffer */ + unsigned int data_size; + /* the data format */ + unsigned int data_format; + /* the state of buffer data */ + unsigned int state; + /* is the buffer mapped in user space? */ + unsigned int map_count; + /* memory offset for mmap() */ + unsigned int offset; + /* frame counter */ + unsigned int frame_counter; + /* timestamp (written when image capture finishes) */ + struct timeval timestamp; + + struct vino_descriptor_table desc_table; + + spinlock_t state_lock; +}; + +struct vino_framebuffer_fifo { + unsigned int length; + + unsigned int used; + unsigned int head; + unsigned int tail; + + unsigned int data[VINO_FRAMEBUFFER_COUNT_MAX]; +}; + +struct vino_framebuffer_queue { + unsigned int magic; + + /* VINO_MEMORY_NONE, VINO_MEMORY_MMAP or VINO_MEMORY_USERPTR */ + unsigned int type; + unsigned int length; + + /* data field of in and out contain index numbers for buffer */ + struct vino_framebuffer_fifo in; + struct vino_framebuffer_fifo out; + + struct vino_framebuffer *buffer[VINO_FRAMEBUFFER_COUNT_MAX]; + + spinlock_t queue_lock; + struct mutex queue_mutex; + wait_queue_head_t frame_wait_queue; +}; + +struct vino_interrupt_data { + struct timeval timestamp; + unsigned int frame_counter; + unsigned int skip_count; + unsigned int skip; +}; + +struct vino_channel_settings { + unsigned int channel; + + int input; + unsigned int data_format; + unsigned int data_norm; + struct vino_clipping clipping; + unsigned int decimation; + unsigned int line_size; + unsigned int alpha; + unsigned int fps; + unsigned int framert_reg; + + unsigned int fifo_threshold; + + struct vino_framebuffer_queue fb_queue; + + /* number of the current field */ + unsigned int field; + + /* read in progress */ + int reading; + /* streaming is active */ + int streaming; + /* the driver is currently processing the queue */ + int capturing; + + struct mutex mutex; + spinlock_t capture_lock; + + unsigned int users; + + struct vino_interrupt_data int_data; + + /* V4L support */ + struct video_device *vdev; +}; + +struct vino_settings { + struct v4l2_device v4l2_dev; + struct vino_channel_settings a; + struct vino_channel_settings b; + + /* the channel which owns this client: + * VINO_NO_CHANNEL, VINO_CHANNEL_A or VINO_CHANNEL_B */ + unsigned int decoder_owner; + struct v4l2_subdev *decoder; + unsigned int camera_owner; + struct v4l2_subdev *camera; + + /* a lock for vino register access */ + spinlock_t vino_lock; + /* a lock for channel input changes */ + spinlock_t input_lock; + + unsigned long dummy_page; + struct vino_descriptor_table dummy_desc_table; +}; + +/* Module parameters */ + +/* + * Using vino_pixel_conversion the ABGR32-format pixels supplied + * by the VINO chip can be converted to more common formats + * like RGBA32 (or probably RGB24 in the future). This way we + * can give out data that can be specified correctly with + * the V4L2-definitions. + * + * The pixel format is specified as RGBA32 when no conversion + * is used. + * + * Note that this only affects the 32-bit bit depth. + * + * Use non-zero value to enable conversion. + */ +static int vino_pixel_conversion; + +module_param_named(pixelconv, vino_pixel_conversion, int, 0); + +MODULE_PARM_DESC(pixelconv, + "enable pixel conversion (non-zero value enables)"); + +/* Internal data structures */ + +static struct sgi_vino *vino; + +static struct vino_settings *vino_drvdata; + +#define camera_call(o, f, args...) \ + v4l2_subdev_call(vino_drvdata->camera, o, f, ##args) +#define decoder_call(o, f, args...) \ + v4l2_subdev_call(vino_drvdata->decoder, o, f, ##args) + +static const char *vino_driver_name = "vino"; +static const char *vino_driver_description = "SGI VINO"; +static const char *vino_bus_name = "GIO64 bus"; +static const char *vino_vdev_name_a = "SGI VINO Channel A"; +static const char *vino_vdev_name_b = "SGI VINO Channel B"; + +static void vino_capture_tasklet(unsigned long channel); + +DECLARE_TASKLET(vino_tasklet_a, vino_capture_tasklet, VINO_CHANNEL_A); +DECLARE_TASKLET(vino_tasklet_b, vino_capture_tasklet, VINO_CHANNEL_B); + +static const struct vino_input vino_inputs[] = { + { + .name = "Composite", + .std = V4L2_STD_NTSC | V4L2_STD_PAL + | V4L2_STD_SECAM, + }, { + .name = "S-Video", + .std = V4L2_STD_NTSC | V4L2_STD_PAL + | V4L2_STD_SECAM, + }, { + .name = "D1/IndyCam", + .std = V4L2_STD_NTSC, + } +}; + +static const struct vino_data_format vino_data_formats[] = { + { + .description = "8-bit greyscale", + .bpp = 1, + .pixelformat = V4L2_PIX_FMT_GREY, + .colorspace = V4L2_COLORSPACE_SMPTE170M, + }, { + .description = "8-bit dithered RGB 3-3-2", + .bpp = 1, + .pixelformat = V4L2_PIX_FMT_RGB332, + .colorspace = V4L2_COLORSPACE_SRGB, + }, { + .description = "32-bit RGB", + .bpp = 4, + .pixelformat = V4L2_PIX_FMT_RGB32, + .colorspace = V4L2_COLORSPACE_SRGB, + }, { + .description = "YUV 4:2:2", + .bpp = 2, + .pixelformat = V4L2_PIX_FMT_YUYV, // XXX: swapped? + .colorspace = V4L2_COLORSPACE_SMPTE170M, + } +}; + +static const struct vino_data_norm vino_data_norms[] = { + { + .description = "NTSC", + .std = V4L2_STD_NTSC, + .fps_min = 6, + .fps_max = 30, + .framelines = 525, + .width = VINO_NTSC_WIDTH, + .height = VINO_NTSC_HEIGHT, + .odd = { + .top = VINO_CLIPPING_START_ODD_NTSC, + .left = 0, + .bottom = VINO_CLIPPING_START_ODD_NTSC + + VINO_NTSC_HEIGHT / 2 - 1, + .right = VINO_NTSC_WIDTH, + }, + .even = { + .top = VINO_CLIPPING_START_EVEN_NTSC, + .left = 0, + .bottom = VINO_CLIPPING_START_EVEN_NTSC + + VINO_NTSC_HEIGHT / 2 - 1, + .right = VINO_NTSC_WIDTH, + }, + }, { + .description = "PAL", + .std = V4L2_STD_PAL, + .fps_min = 5, + .fps_max = 25, + .framelines = 625, + .width = VINO_PAL_WIDTH, + .height = VINO_PAL_HEIGHT, + .odd = { + .top = VINO_CLIPPING_START_ODD_PAL, + .left = 0, + .bottom = VINO_CLIPPING_START_ODD_PAL + + VINO_PAL_HEIGHT / 2 - 1, + .right = VINO_PAL_WIDTH, + }, + .even = { + .top = VINO_CLIPPING_START_EVEN_PAL, + .left = 0, + .bottom = VINO_CLIPPING_START_EVEN_PAL + + VINO_PAL_HEIGHT / 2 - 1, + .right = VINO_PAL_WIDTH, + }, + }, { + .description = "SECAM", + .std = V4L2_STD_SECAM, + .fps_min = 5, + .fps_max = 25, + .framelines = 625, + .width = VINO_PAL_WIDTH, + .height = VINO_PAL_HEIGHT, + .odd = { + .top = VINO_CLIPPING_START_ODD_PAL, + .left = 0, + .bottom = VINO_CLIPPING_START_ODD_PAL + + VINO_PAL_HEIGHT / 2 - 1, + .right = VINO_PAL_WIDTH, + }, + .even = { + .top = VINO_CLIPPING_START_EVEN_PAL, + .left = 0, + .bottom = VINO_CLIPPING_START_EVEN_PAL + + VINO_PAL_HEIGHT / 2 - 1, + .right = VINO_PAL_WIDTH, + }, + }, { + .description = "NTSC/D1", + .std = V4L2_STD_NTSC, + .fps_min = 6, + .fps_max = 30, + .framelines = 525, + .width = VINO_NTSC_WIDTH, + .height = VINO_NTSC_HEIGHT, + .odd = { + .top = VINO_CLIPPING_START_ODD_D1, + .left = 0, + .bottom = VINO_CLIPPING_START_ODD_D1 + + VINO_NTSC_HEIGHT / 2 - 1, + .right = VINO_NTSC_WIDTH, + }, + .even = { + .top = VINO_CLIPPING_START_EVEN_D1, + .left = 0, + .bottom = VINO_CLIPPING_START_EVEN_D1 + + VINO_NTSC_HEIGHT / 2 - 1, + .right = VINO_NTSC_WIDTH, + }, + } +}; + +#define VINO_INDYCAM_V4L2_CONTROL_COUNT 9 + +struct v4l2_queryctrl vino_indycam_v4l2_controls[] = { + { + .id = V4L2_CID_AUTOGAIN, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Automatic Gain Control", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = INDYCAM_AGC_DEFAULT, + }, { + .id = V4L2_CID_AUTO_WHITE_BALANCE, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Automatic White Balance", + .minimum = 0, + .maximum = 1, + .step = 1, + .default_value = INDYCAM_AWB_DEFAULT, + }, { + .id = V4L2_CID_GAIN, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Gain", + .minimum = INDYCAM_GAIN_MIN, + .maximum = INDYCAM_GAIN_MAX, + .step = 1, + .default_value = INDYCAM_GAIN_DEFAULT, + }, { + .id = INDYCAM_CONTROL_RED_SATURATION, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Red Saturation", + .minimum = INDYCAM_RED_SATURATION_MIN, + .maximum = INDYCAM_RED_SATURATION_MAX, + .step = 1, + .default_value = INDYCAM_RED_SATURATION_DEFAULT, + }, { + .id = INDYCAM_CONTROL_BLUE_SATURATION, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Blue Saturation", + .minimum = INDYCAM_BLUE_SATURATION_MIN, + .maximum = INDYCAM_BLUE_SATURATION_MAX, + .step = 1, + .default_value = INDYCAM_BLUE_SATURATION_DEFAULT, + }, { + .id = V4L2_CID_RED_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Red Balance", + .minimum = INDYCAM_RED_BALANCE_MIN, + .maximum = INDYCAM_RED_BALANCE_MAX, + .step = 1, + .default_value = INDYCAM_RED_BALANCE_DEFAULT, + }, { + .id = V4L2_CID_BLUE_BALANCE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Blue Balance", + .minimum = INDYCAM_BLUE_BALANCE_MIN, + .maximum = INDYCAM_BLUE_BALANCE_MAX, + .step = 1, + .default_value = INDYCAM_BLUE_BALANCE_DEFAULT, + }, { + .id = V4L2_CID_EXPOSURE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Shutter Control", + .minimum = INDYCAM_SHUTTER_MIN, + .maximum = INDYCAM_SHUTTER_MAX, + .step = 1, + .default_value = INDYCAM_SHUTTER_DEFAULT, + }, { + .id = V4L2_CID_GAMMA, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Gamma", + .minimum = INDYCAM_GAMMA_MIN, + .maximum = INDYCAM_GAMMA_MAX, + .step = 1, + .default_value = INDYCAM_GAMMA_DEFAULT, + } +}; + +#define VINO_SAA7191_V4L2_CONTROL_COUNT 9 + +struct v4l2_queryctrl vino_saa7191_v4l2_controls[] = { + { + .id = V4L2_CID_HUE, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Hue", + .minimum = SAA7191_HUE_MIN, + .maximum = SAA7191_HUE_MAX, + .step = 1, + .default_value = SAA7191_HUE_DEFAULT, + }, { + .id = SAA7191_CONTROL_BANDPASS, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Luminance Bandpass", + .minimum = SAA7191_BANDPASS_MIN, + .maximum = SAA7191_BANDPASS_MAX, + .step = 1, + .default_value = SAA7191_BANDPASS_DEFAULT, + }, { + .id = SAA7191_CONTROL_BANDPASS_WEIGHT, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Luminance Bandpass Weight", + .minimum = SAA7191_BANDPASS_WEIGHT_MIN, + .maximum = SAA7191_BANDPASS_WEIGHT_MAX, + .step = 1, + .default_value = SAA7191_BANDPASS_WEIGHT_DEFAULT, + }, { + .id = SAA7191_CONTROL_CORING, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "HF Luminance Coring", + .minimum = SAA7191_CORING_MIN, + .maximum = SAA7191_CORING_MAX, + .step = 1, + .default_value = SAA7191_CORING_DEFAULT, + }, { + .id = SAA7191_CONTROL_FORCE_COLOUR, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "Force Colour", + .minimum = SAA7191_FORCE_COLOUR_MIN, + .maximum = SAA7191_FORCE_COLOUR_MAX, + .step = 1, + .default_value = SAA7191_FORCE_COLOUR_DEFAULT, + }, { + .id = SAA7191_CONTROL_CHROMA_GAIN, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Chrominance Gain Control", + .minimum = SAA7191_CHROMA_GAIN_MIN, + .maximum = SAA7191_CHROMA_GAIN_MAX, + .step = 1, + .default_value = SAA7191_CHROMA_GAIN_DEFAULT, + }, { + .id = SAA7191_CONTROL_VTRC, + .type = V4L2_CTRL_TYPE_BOOLEAN, + .name = "VTR Time Constant", + .minimum = SAA7191_VTRC_MIN, + .maximum = SAA7191_VTRC_MAX, + .step = 1, + .default_value = SAA7191_VTRC_DEFAULT, + }, { + .id = SAA7191_CONTROL_LUMA_DELAY, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Luminance Delay Compensation", + .minimum = SAA7191_LUMA_DELAY_MIN, + .maximum = SAA7191_LUMA_DELAY_MAX, + .step = 1, + .default_value = SAA7191_LUMA_DELAY_DEFAULT, + }, { + .id = SAA7191_CONTROL_VNR, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Vertical Noise Reduction", + .minimum = SAA7191_VNR_MIN, + .maximum = SAA7191_VNR_MAX, + .step = 1, + .default_value = SAA7191_VNR_DEFAULT, + } +}; + +/* VINO framebuffer/DMA descriptor management */ + +static void vino_free_buffer_with_count(struct vino_framebuffer *fb, + unsigned int count) +{ + unsigned int i; + + dprintk("vino_free_buffer_with_count(): count = %d\n", count); + + for (i = 0; i < count; i++) { + ClearPageReserved(virt_to_page((void *)fb->desc_table.virtual[i])); + dma_unmap_single(NULL, + fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], + PAGE_SIZE, DMA_FROM_DEVICE); + free_page(fb->desc_table.virtual[i]); + } + + dma_free_coherent(NULL, + VINO_PAGE_RATIO * (fb->desc_table.page_count + 4) * + sizeof(dma_addr_t), (void *)fb->desc_table.dma_cpu, + fb->desc_table.dma); + kfree(fb->desc_table.virtual); + + memset(fb, 0, sizeof(struct vino_framebuffer)); +} + +static void vino_free_buffer(struct vino_framebuffer *fb) +{ + vino_free_buffer_with_count(fb, fb->desc_table.page_count); +} + +static int vino_allocate_buffer(struct vino_framebuffer *fb, + unsigned int size) +{ + unsigned int count, i, j; + int ret = 0; + + dprintk("vino_allocate_buffer():\n"); + + if (size < 1) + return -EINVAL; + + memset(fb, 0, sizeof(struct vino_framebuffer)); + + count = ((size / PAGE_SIZE) + 4) & ~3; + + dprintk("vino_allocate_buffer(): size = %d, count = %d\n", + size, count); + + /* allocate memory for table with virtual (page) addresses */ + fb->desc_table.virtual = + kmalloc(count * sizeof(unsigned long), GFP_KERNEL); + if (!fb->desc_table.virtual) + return -ENOMEM; + + /* allocate memory for table with dma addresses + * (has space for four extra descriptors) */ + fb->desc_table.dma_cpu = + dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * + sizeof(dma_addr_t), &fb->desc_table.dma, + GFP_KERNEL | GFP_DMA); + if (!fb->desc_table.dma_cpu) { + ret = -ENOMEM; + goto out_free_virtual; + } + + /* allocate pages for the buffer and acquire the according + * dma addresses */ + for (i = 0; i < count; i++) { + dma_addr_t dma_data_addr; + + fb->desc_table.virtual[i] = + get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!fb->desc_table.virtual[i]) { + ret = -ENOBUFS; + break; + } + + dma_data_addr = + dma_map_single(NULL, + (void *)fb->desc_table.virtual[i], + PAGE_SIZE, DMA_FROM_DEVICE); + + for (j = 0; j < VINO_PAGE_RATIO; j++) { + fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = + dma_data_addr + VINO_PAGE_SIZE * j; + } + + SetPageReserved(virt_to_page((void *)fb->desc_table.virtual[i])); + } + + /* page_count needs to be set anyway, because the descriptor table has + * been allocated according to this number */ + fb->desc_table.page_count = count; + + if (ret) { + /* the descriptor with index i doesn't contain + * a valid address yet */ + vino_free_buffer_with_count(fb, i); + return ret; + } + + //fb->size = size; + fb->size = count * PAGE_SIZE; + fb->data_format = VINO_DATA_FMT_NONE; + + /* set the dma stop-bit for the last (count+1)th descriptor */ + fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; + return 0; + + out_free_virtual: + kfree(fb->desc_table.virtual); + return ret; +} + +#if 0 +/* user buffers not fully implemented yet */ +static int vino_prepare_user_buffer(struct vino_framebuffer *fb, + void *user, + unsigned int size) +{ + unsigned int count, i, j; + int ret = 0; + + dprintk("vino_prepare_user_buffer():\n"); + + if (size < 1) + return -EINVAL; + + memset(fb, 0, sizeof(struct vino_framebuffer)); + + count = ((size / PAGE_SIZE)) & ~3; + + dprintk("vino_prepare_user_buffer(): size = %d, count = %d\n", + size, count); + + /* allocate memory for table with virtual (page) addresses */ + fb->desc_table.virtual = (unsigned long *) + kmalloc(count * sizeof(unsigned long), GFP_KERNEL); + if (!fb->desc_table.virtual) + return -ENOMEM; + + /* allocate memory for table with dma addresses + * (has space for four extra descriptors) */ + fb->desc_table.dma_cpu = + dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * + sizeof(dma_addr_t), &fb->desc_table.dma, + GFP_KERNEL | GFP_DMA); + if (!fb->desc_table.dma_cpu) { + ret = -ENOMEM; + goto out_free_virtual; + } + + /* allocate pages for the buffer and acquire the according + * dma addresses */ + for (i = 0; i < count; i++) { + dma_addr_t dma_data_addr; + + fb->desc_table.virtual[i] = + get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!fb->desc_table.virtual[i]) { + ret = -ENOBUFS; + break; + } + + dma_data_addr = + dma_map_single(NULL, + (void *)fb->desc_table.virtual[i], + PAGE_SIZE, DMA_FROM_DEVICE); + + for (j = 0; j < VINO_PAGE_RATIO; j++) { + fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = + dma_data_addr + VINO_PAGE_SIZE * j; + } + + SetPageReserved(virt_to_page((void *)fb->desc_table.virtual[i])); + } + + /* page_count needs to be set anyway, because the descriptor table has + * been allocated according to this number */ + fb->desc_table.page_count = count; + + if (ret) { + /* the descriptor with index i doesn't contain + * a valid address yet */ + vino_free_buffer_with_count(fb, i); + return ret; + } + + //fb->size = size; + fb->size = count * PAGE_SIZE; + + /* set the dma stop-bit for the last (count+1)th descriptor */ + fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; + return 0; + + out_free_virtual: + kfree(fb->desc_table.virtual); + return ret; +} +#endif + +static void vino_sync_buffer(struct vino_framebuffer *fb) +{ + int i; + + dprintk("vino_sync_buffer():\n"); + + for (i = 0; i < fb->desc_table.page_count; i++) + dma_sync_single_for_cpu(NULL, + fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], + PAGE_SIZE, DMA_FROM_DEVICE); +} + +/* Framebuffer fifo functions (need to be locked externally) */ + +static inline void vino_fifo_init(struct vino_framebuffer_fifo *f, + unsigned int length) +{ + f->length = 0; + f->used = 0; + f->head = 0; + f->tail = 0; + + if (length > VINO_FRAMEBUFFER_COUNT_MAX) + length = VINO_FRAMEBUFFER_COUNT_MAX; + + f->length = length; +} + +/* returns true/false */ +static inline int vino_fifo_has_id(struct vino_framebuffer_fifo *f, + unsigned int id) +{ + unsigned int i; + + for (i = f->head; i == (f->tail - 1); i = (i + 1) % f->length) { + if (f->data[i] == id) + return 1; + } + + return 0; +} + +#if 0 +/* returns true/false */ +static inline int vino_fifo_full(struct vino_framebuffer_fifo *f) +{ + return (f->used == f->length); +} +#endif + +static inline unsigned int vino_fifo_get_used(struct vino_framebuffer_fifo *f) +{ + return f->used; +} + +static int vino_fifo_enqueue(struct vino_framebuffer_fifo *f, unsigned int id) +{ + if (id >= f->length) { + return VINO_QUEUE_ERROR; + } + + if (vino_fifo_has_id(f, id)) { + return VINO_QUEUE_ERROR; + } + + if (f->used < f->length) { + f->data[f->tail] = id; + f->tail = (f->tail + 1) % f->length; + f->used++; + } else { + return VINO_QUEUE_ERROR; + } + + return 0; +} + +static int vino_fifo_peek(struct vino_framebuffer_fifo *f, unsigned int *id) +{ + if (f->used > 0) { + *id = f->data[f->head]; + } else { + return VINO_QUEUE_ERROR; + } + + return 0; +} + +static int vino_fifo_dequeue(struct vino_framebuffer_fifo *f, unsigned int *id) +{ + if (f->used > 0) { + *id = f->data[f->head]; + f->head = (f->head + 1) % f->length; + f->used--; + } else { + return VINO_QUEUE_ERROR; + } + + return 0; +} + +/* Framebuffer queue functions */ + +/* execute with queue_lock locked */ +static void vino_queue_free_with_count(struct vino_framebuffer_queue *q, + unsigned int length) +{ + unsigned int i; + + q->length = 0; + memset(&q->in, 0, sizeof(struct vino_framebuffer_fifo)); + memset(&q->out, 0, sizeof(struct vino_framebuffer_fifo)); + for (i = 0; i < length; i++) { + dprintk("vino_queue_free_with_count(): freeing buffer %d\n", + i); + vino_free_buffer(q->buffer[i]); + kfree(q->buffer[i]); + } + + q->type = VINO_MEMORY_NONE; + q->magic = 0; +} + +static void vino_queue_free(struct vino_framebuffer_queue *q) +{ + dprintk("vino_queue_free():\n"); + + if (q->magic != VINO_QUEUE_MAGIC) + return; + if (q->type != VINO_MEMORY_MMAP) + return; + + mutex_lock(&q->queue_mutex); + + vino_queue_free_with_count(q, q->length); + + mutex_unlock(&q->queue_mutex); +} + +static int vino_queue_init(struct vino_framebuffer_queue *q, + unsigned int *length) +{ + unsigned int i; + int ret = 0; + + dprintk("vino_queue_init(): length = %d\n", *length); + + if (q->magic == VINO_QUEUE_MAGIC) { + dprintk("vino_queue_init(): queue already initialized!\n"); + return -EINVAL; + } + + if (q->type != VINO_MEMORY_NONE) { + dprintk("vino_queue_init(): queue already initialized!\n"); + return -EINVAL; + } + + if (*length < 1) + return -EINVAL; + + mutex_lock(&q->queue_mutex); + + if (*length > VINO_FRAMEBUFFER_COUNT_MAX) + *length = VINO_FRAMEBUFFER_COUNT_MAX; + + q->length = 0; + + for (i = 0; i < *length; i++) { + dprintk("vino_queue_init(): allocating buffer %d\n", i); + q->buffer[i] = kmalloc(sizeof(struct vino_framebuffer), + GFP_KERNEL); + if (!q->buffer[i]) { + dprintk("vino_queue_init(): kmalloc() failed\n"); + ret = -ENOMEM; + break; + } + + ret = vino_allocate_buffer(q->buffer[i], + VINO_FRAMEBUFFER_SIZE); + if (ret) { + kfree(q->buffer[i]); + dprintk("vino_queue_init(): " + "vino_allocate_buffer() failed\n"); + break; + } + + q->buffer[i]->id = i; + if (i > 0) { + q->buffer[i]->offset = q->buffer[i - 1]->offset + + q->buffer[i - 1]->size; + } else { + q->buffer[i]->offset = 0; + } + + spin_lock_init(&q->buffer[i]->state_lock); + + dprintk("vino_queue_init(): buffer = %d, offset = %d, " + "size = %d\n", i, q->buffer[i]->offset, + q->buffer[i]->size); + } + + if (ret) { + vino_queue_free_with_count(q, i); + *length = 0; + } else { + q->length = *length; + vino_fifo_init(&q->in, q->length); + vino_fifo_init(&q->out, q->length); + q->type = VINO_MEMORY_MMAP; + q->magic = VINO_QUEUE_MAGIC; + } + + mutex_unlock(&q->queue_mutex); + + return ret; +} + +static struct vino_framebuffer *vino_queue_add(struct + vino_framebuffer_queue *q, + unsigned int id) +{ + struct vino_framebuffer *ret = NULL; + unsigned int total; + unsigned long flags; + + dprintk("vino_queue_add(): id = %d\n", id); + + if (q->magic != VINO_QUEUE_MAGIC) { + return ret; + } + + spin_lock_irqsave(&q->queue_lock, flags); + + if (q->length == 0) + goto out; + + if (id >= q->length) + goto out; + + /* not needed?: if (vino_fifo_full(&q->out)) { + goto out; + }*/ + /* check that outgoing queue isn't already full + * (or that it won't become full) */ + total = vino_fifo_get_used(&q->in) + + vino_fifo_get_used(&q->out); + if (total >= q->length) + goto out; + + if (vino_fifo_enqueue(&q->in, id)) + goto out; + + ret = q->buffer[id]; + +out: + spin_unlock_irqrestore(&q->queue_lock, flags); + + return ret; +} + +static struct vino_framebuffer *vino_queue_transfer(struct + vino_framebuffer_queue *q) +{ + struct vino_framebuffer *ret = NULL; + struct vino_framebuffer *fb; + int id; + unsigned long flags; + + dprintk("vino_queue_transfer():\n"); + + if (q->magic != VINO_QUEUE_MAGIC) { + return ret; + } + + spin_lock_irqsave(&q->queue_lock, flags); + + if (q->length == 0) + goto out; + + // now this actually removes an entry from the incoming queue + if (vino_fifo_dequeue(&q->in, &id)) { + goto out; + } + + dprintk("vino_queue_transfer(): id = %d\n", id); + fb = q->buffer[id]; + + // we have already checked that the outgoing queue is not full, but... + if (vino_fifo_enqueue(&q->out, id)) { + printk(KERN_ERR "vino_queue_transfer(): " + "outgoing queue is full, this shouldn't happen!\n"); + goto out; + } + + ret = fb; +out: + spin_unlock_irqrestore(&q->queue_lock, flags); + + return ret; +} + +/* returns true/false */ +static int vino_queue_incoming_contains(struct vino_framebuffer_queue *q, + unsigned int id) +{ + int ret = 0; + unsigned long flags; + + if (q->magic != VINO_QUEUE_MAGIC) { + return ret; + } + + spin_lock_irqsave(&q->queue_lock, flags); + + if (q->length == 0) + goto out; + + ret = vino_fifo_has_id(&q->in, id); + +out: + spin_unlock_irqrestore(&q->queue_lock, flags); + + return ret; +} + +/* returns true/false */ +static int vino_queue_outgoing_contains(struct vino_framebuffer_queue *q, + unsigned int id) +{ + int ret = 0; + unsigned long flags; + + if (q->magic != VINO_QUEUE_MAGIC) { + return ret; + } + + spin_lock_irqsave(&q->queue_lock, flags); + + if (q->length == 0) + goto out; + + ret = vino_fifo_has_id(&q->out, id); + +out: + spin_unlock_irqrestore(&q->queue_lock, flags); + + return ret; +} + +static int vino_queue_get_incoming(struct vino_framebuffer_queue *q, + unsigned int *used) +{ + int ret = 0; + unsigned long flags; + + if (q->magic != VINO_QUEUE_MAGIC) { + return VINO_QUEUE_ERROR; + } + + spin_lock_irqsave(&q->queue_lock, flags); + + if (q->length == 0) { + ret = VINO_QUEUE_ERROR; + goto out; + } + + *used = vino_fifo_get_used(&q->in); + +out: + spin_unlock_irqrestore(&q->queue_lock, flags); + + return ret; +} + +static int vino_queue_get_outgoing(struct vino_framebuffer_queue *q, + unsigned int *used) +{ + int ret = 0; + unsigned long flags; + + if (q->magic != VINO_QUEUE_MAGIC) { + return VINO_QUEUE_ERROR; + } + + spin_lock_irqsave(&q->queue_lock, flags); + + if (q->length == 0) { + ret = VINO_QUEUE_ERROR; + goto out; + } + + *used = vino_fifo_get_used(&q->out); + +out: + spin_unlock_irqrestore(&q->queue_lock, flags); + + return ret; +} + +#if 0 +static int vino_queue_get_total(struct vino_framebuffer_queue *q, + unsigned int *total) +{ + int ret = 0; + unsigned long flags; + + if (q->magic != VINO_QUEUE_MAGIC) { + return VINO_QUEUE_ERROR; + } + + spin_lock_irqsave(&q->queue_lock, flags); + + if (q->length == 0) { + ret = VINO_QUEUE_ERROR; + goto out; + } + + *total = vino_fifo_get_used(&q->in) + + vino_fifo_get_used(&q->out); + +out: + spin_unlock_irqrestore(&q->queue_lock, flags); + + return ret; +} +#endif + +static struct vino_framebuffer *vino_queue_peek(struct + vino_framebuffer_queue *q, + unsigned int *id) +{ + struct vino_framebuffer *ret = NULL; + unsigned long flags; + + if (q->magic != VINO_QUEUE_MAGIC) { + return ret; + } + + spin_lock_irqsave(&q->queue_lock, flags); + + if (q->length == 0) + goto out; + + if (vino_fifo_peek(&q->in, id)) { + goto out; + } + + ret = q->buffer[*id]; +out: + spin_unlock_irqrestore(&q->queue_lock, flags); + + return ret; +} + +static struct vino_framebuffer *vino_queue_remove(struct + vino_framebuffer_queue *q, + unsigned int *id) +{ + struct vino_framebuffer *ret = NULL; + unsigned long flags; + dprintk("vino_queue_remove():\n"); + + if (q->magic != VINO_QUEUE_MAGIC) { + return ret; + } + + spin_lock_irqsave(&q->queue_lock, flags); + + if (q->length == 0) + goto out; + + if (vino_fifo_dequeue(&q->out, id)) { + goto out; + } + + dprintk("vino_queue_remove(): id = %d\n", *id); + ret = q->buffer[*id]; +out: + spin_unlock_irqrestore(&q->queue_lock, flags); + + return ret; +} + +static struct +vino_framebuffer *vino_queue_get_buffer(struct vino_framebuffer_queue *q, + unsigned int id) +{ + struct vino_framebuffer *ret = NULL; + unsigned long flags; + + if (q->magic != VINO_QUEUE_MAGIC) { + return ret; + } + + spin_lock_irqsave(&q->queue_lock, flags); + + if (q->length == 0) + goto out; + + if (id >= q->length) + goto out; + + ret = q->buffer[id]; + out: + spin_unlock_irqrestore(&q->queue_lock, flags); + + return ret; +} + +static unsigned int vino_queue_get_length(struct vino_framebuffer_queue *q) +{ + unsigned int length = 0; + unsigned long flags; + + if (q->magic != VINO_QUEUE_MAGIC) { + return length; + } + + spin_lock_irqsave(&q->queue_lock, flags); + length = q->length; + spin_unlock_irqrestore(&q->queue_lock, flags); + + return length; +} + +static int vino_queue_has_mapped_buffers(struct vino_framebuffer_queue *q) +{ + unsigned int i; + int ret = 0; + unsigned long flags; + + if (q->magic != VINO_QUEUE_MAGIC) { + return ret; + } + + spin_lock_irqsave(&q->queue_lock, flags); + for (i = 0; i < q->length; i++) { + if (q->buffer[i]->map_count > 0) { + ret = 1; + break; + } + } + spin_unlock_irqrestore(&q->queue_lock, flags); + + return ret; +} + +/* VINO functions */ + +/* execute with input_lock locked */ +static void vino_update_line_size(struct vino_channel_settings *vcs) +{ + unsigned int w = vcs->clipping.right - vcs->clipping.left; + unsigned int d = vcs->decimation; + unsigned int bpp = vino_data_formats[vcs->data_format].bpp; + unsigned int lsize; + + dprintk("update_line_size(): before: w = %d, d = %d, " + "line_size = %d\n", w, d, vcs->line_size); + + /* line size must be multiple of 8 bytes */ + lsize = (bpp * (w / d)) & ~7; + w = (lsize / bpp) * d; + + vcs->clipping.right = vcs->clipping.left + w; + vcs->line_size = lsize; + + dprintk("update_line_size(): after: w = %d, d = %d, " + "line_size = %d\n", w, d, vcs->line_size); +} + +/* execute with input_lock locked */ +static void vino_set_clipping(struct vino_channel_settings *vcs, + unsigned int x, unsigned int y, + unsigned int w, unsigned int h) +{ + unsigned int maxwidth, maxheight; + unsigned int d; + + maxwidth = vino_data_norms[vcs->data_norm].width; + maxheight = vino_data_norms[vcs->data_norm].height; + d = vcs->decimation; + + y &= ~1; /* odd/even fields */ + + if (x > maxwidth) { + x = 0; + } + if (y > maxheight) { + y = 0; + } + + if (((w / d) < VINO_MIN_WIDTH) + || ((h / d) < VINO_MIN_HEIGHT)) { + w = VINO_MIN_WIDTH * d; + h = VINO_MIN_HEIGHT * d; + } + + if ((x + w) > maxwidth) { + w = maxwidth - x; + if ((w / d) < VINO_MIN_WIDTH) + x = maxwidth - VINO_MIN_WIDTH * d; + } + if ((y + h) > maxheight) { + h = maxheight - y; + if ((h / d) < VINO_MIN_HEIGHT) + y = maxheight - VINO_MIN_HEIGHT * d; + } + + vcs->clipping.left = x; + vcs->clipping.top = y; + vcs->clipping.right = x + w; + vcs->clipping.bottom = y + h; + + vino_update_line_size(vcs); + + dprintk("clipping %d, %d, %d, %d / %d - %d\n", + vcs->clipping.left, vcs->clipping.top, vcs->clipping.right, + vcs->clipping.bottom, vcs->decimation, vcs->line_size); +} + +/* execute with input_lock locked */ +static inline void vino_set_default_clipping(struct vino_channel_settings *vcs) +{ + vino_set_clipping(vcs, 0, 0, vino_data_norms[vcs->data_norm].width, + vino_data_norms[vcs->data_norm].height); +} + +/* execute with input_lock locked */ +static void vino_set_scaling(struct vino_channel_settings *vcs, + unsigned int w, unsigned int h) +{ + unsigned int x, y, curw, curh, d; + + x = vcs->clipping.left; + y = vcs->clipping.top; + curw = vcs->clipping.right - vcs->clipping.left; + curh = vcs->clipping.bottom - vcs->clipping.top; + + d = max(curw / w, curh / h); + + dprintk("scaling w: %d, h: %d, curw: %d, curh: %d, d: %d\n", + w, h, curw, curh, d); + + if (d < 1) { + d = 1; + } else if (d > 8) { + d = 8; + } + + vcs->decimation = d; + vino_set_clipping(vcs, x, y, w * d, h * d); + + dprintk("scaling %d, %d, %d, %d / %d - %d\n", vcs->clipping.left, + vcs->clipping.top, vcs->clipping.right, vcs->clipping.bottom, + vcs->decimation, vcs->line_size); +} + +/* execute with input_lock locked */ +static inline void vino_set_default_scaling(struct vino_channel_settings *vcs) +{ + vino_set_scaling(vcs, vcs->clipping.right - vcs->clipping.left, + vcs->clipping.bottom - vcs->clipping.top); +} + +/* execute with input_lock locked */ +static void vino_set_framerate(struct vino_channel_settings *vcs, + unsigned int fps) +{ + unsigned int mask; + + switch (vcs->data_norm) { + case VINO_DATA_NORM_NTSC: + case VINO_DATA_NORM_D1: + fps = (unsigned int)(fps / 6) * 6; // FIXME: round! + + if (fps < vino_data_norms[vcs->data_norm].fps_min) + fps = vino_data_norms[vcs->data_norm].fps_min; + if (fps > vino_data_norms[vcs->data_norm].fps_max) + fps = vino_data_norms[vcs->data_norm].fps_max; + + switch (fps) { + case 6: + mask = 0x003; + break; + case 12: + mask = 0x0c3; + break; + case 18: + mask = 0x333; + break; + case 24: + mask = 0x3ff; + break; + case 30: + mask = 0xfff; + break; + default: + mask = VINO_FRAMERT_FULL; + } + vcs->framert_reg = VINO_FRAMERT_RT(mask); + break; + case VINO_DATA_NORM_PAL: + case VINO_DATA_NORM_SECAM: + fps = (unsigned int)(fps / 5) * 5; // FIXME: round! + + if (fps < vino_data_norms[vcs->data_norm].fps_min) + fps = vino_data_norms[vcs->data_norm].fps_min; + if (fps > vino_data_norms[vcs->data_norm].fps_max) + fps = vino_data_norms[vcs->data_norm].fps_max; + + switch (fps) { + case 5: + mask = 0x003; + break; + case 10: + mask = 0x0c3; + break; + case 15: + mask = 0x333; + break; + case 20: + mask = 0x0ff; + break; + case 25: + mask = 0x3ff; + break; + default: + mask = VINO_FRAMERT_FULL; + } + vcs->framert_reg = VINO_FRAMERT_RT(mask) | VINO_FRAMERT_PAL; + break; + } + + vcs->fps = fps; +} + +/* execute with input_lock locked */ +static inline void vino_set_default_framerate(struct + vino_channel_settings *vcs) +{ + vino_set_framerate(vcs, vino_data_norms[vcs->data_norm].fps_max); +} + +/* VINO I2C bus functions */ + +struct i2c_algo_sgi_data { + void *data; /* private data for lowlevel routines */ + unsigned (*getctrl)(void *data); + void (*setctrl)(void *data, unsigned val); + unsigned (*rdata)(void *data); + void (*wdata)(void *data, unsigned val); + + int xfer_timeout; + int ack_timeout; +}; + +static int wait_xfer_done(struct i2c_algo_sgi_data *adap) +{ + int i; + + for (i = 0; i < adap->xfer_timeout; i++) { + if ((adap->getctrl(adap->data) & SGI_I2C_XFER_BUSY) == 0) + return 0; + udelay(1); + } + + return -ETIMEDOUT; +} + +static int wait_ack(struct i2c_algo_sgi_data *adap) +{ + int i; + + if (wait_xfer_done(adap)) + return -ETIMEDOUT; + for (i = 0; i < adap->ack_timeout; i++) { + if ((adap->getctrl(adap->data) & SGI_I2C_NACK) == 0) + return 0; + udelay(1); + } + + return -ETIMEDOUT; +} + +static int force_idle(struct i2c_algo_sgi_data *adap) +{ + int i; + + adap->setctrl(adap->data, SGI_I2C_FORCE_IDLE); + for (i = 0; i < adap->xfer_timeout; i++) { + if ((adap->getctrl(adap->data) & SGI_I2C_NOT_IDLE) == 0) + goto out; + udelay(1); + } + return -ETIMEDOUT; +out: + if (adap->getctrl(adap->data) & SGI_I2C_BUS_ERR) + return -EIO; + return 0; +} + +static int do_address(struct i2c_algo_sgi_data *adap, unsigned int addr, + int rd) +{ + if (rd) + adap->setctrl(adap->data, SGI_I2C_NOT_IDLE); + /* Check if bus is idle, eventually force it to do so */ + if (adap->getctrl(adap->data) & SGI_I2C_NOT_IDLE) + if (force_idle(adap)) + return -EIO; + /* Write out the i2c chip address and specify operation */ + adap->setctrl(adap->data, + SGI_I2C_HOLD_BUS | SGI_I2C_WRITE | SGI_I2C_NOT_IDLE); + if (rd) + addr |= 1; + adap->wdata(adap->data, addr); + if (wait_ack(adap)) + return -EIO; + return 0; +} + +static int i2c_read(struct i2c_algo_sgi_data *adap, unsigned char *buf, + unsigned int len) +{ + int i; + + adap->setctrl(adap->data, + SGI_I2C_HOLD_BUS | SGI_I2C_READ | SGI_I2C_NOT_IDLE); + for (i = 0; i < len; i++) { + if (wait_xfer_done(adap)) + return -EIO; + buf[i] = adap->rdata(adap->data); + } + adap->setctrl(adap->data, SGI_I2C_RELEASE_BUS | SGI_I2C_FORCE_IDLE); + + return 0; + +} + +static int i2c_write(struct i2c_algo_sgi_data *adap, unsigned char *buf, + unsigned int len) +{ + int i; + + /* We are already in write state */ + for (i = 0; i < len; i++) { + adap->wdata(adap->data, buf[i]); + if (wait_ack(adap)) + return -EIO; + } + return 0; +} + +static int sgi_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, + int num) +{ + struct i2c_algo_sgi_data *adap = i2c_adap->algo_data; + struct i2c_msg *p; + int i, err = 0; + + for (i = 0; !err && i < num; i++) { + p = &msgs[i]; + err = do_address(adap, p->addr, p->flags & I2C_M_RD); + if (err || !p->len) + continue; + if (p->flags & I2C_M_RD) + err = i2c_read(adap, p->buf, p->len); + else + err = i2c_write(adap, p->buf, p->len); + } + + return (err < 0) ? err : i; +} + +static u32 sgi_func(struct i2c_adapter *adap) +{ + return I2C_FUNC_SMBUS_EMUL; +} + +static const struct i2c_algorithm sgi_algo = { + .master_xfer = sgi_xfer, + .functionality = sgi_func, +}; + +static unsigned i2c_vino_getctrl(void *data) +{ + return vino->i2c_control; +} + +static void i2c_vino_setctrl(void *data, unsigned val) +{ + vino->i2c_control = val; +} + +static unsigned i2c_vino_rdata(void *data) +{ + return vino->i2c_data; +} + +static void i2c_vino_wdata(void *data, unsigned val) +{ + vino->i2c_data = val; +} + +static struct i2c_algo_sgi_data i2c_sgi_vino_data = { + .getctrl = &i2c_vino_getctrl, + .setctrl = &i2c_vino_setctrl, + .rdata = &i2c_vino_rdata, + .wdata = &i2c_vino_wdata, + .xfer_timeout = 200, + .ack_timeout = 1000, +}; + +static struct i2c_adapter vino_i2c_adapter = { + .name = "VINO I2C bus", + .algo = &sgi_algo, + .algo_data = &i2c_sgi_vino_data, + .owner = THIS_MODULE, +}; + +/* + * Prepare VINO for DMA transfer... + * (execute only with vino_lock and input_lock locked) + */ +static int vino_dma_setup(struct vino_channel_settings *vcs, + struct vino_framebuffer *fb) +{ + u32 ctrl, intr; + struct sgi_vino_channel *ch; + const struct vino_data_norm *norm; + + dprintk("vino_dma_setup():\n"); + + vcs->field = 0; + fb->frame_counter = 0; + + ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; + norm = &vino_data_norms[vcs->data_norm]; + + ch->page_index = 0; + ch->line_count = 0; + + /* VINO line size register is set 8 bytes less than actual */ + ch->line_size = vcs->line_size - 8; + + /* let VINO know where to transfer data */ + ch->start_desc_tbl = fb->desc_table.dma; + ch->next_4_desc = fb->desc_table.dma; + + /* give vino time to fetch the first four descriptors, 5 usec + * should be more than enough time */ + udelay(VINO_DESC_FETCH_DELAY); + + dprintk("vino_dma_setup(): start desc = %08x, next 4 desc = %08x\n", + ch->start_desc_tbl, ch->next_4_desc); + + /* set the alpha register */ + ch->alpha = vcs->alpha; + + /* set clipping registers */ + ch->clip_start = VINO_CLIP_ODD(norm->odd.top + vcs->clipping.top / 2) | + VINO_CLIP_EVEN(norm->even.top + + vcs->clipping.top / 2) | + VINO_CLIP_X(vcs->clipping.left); + ch->clip_end = VINO_CLIP_ODD(norm->odd.top + + vcs->clipping.bottom / 2 - 1) | + VINO_CLIP_EVEN(norm->even.top + + vcs->clipping.bottom / 2 - 1) | + VINO_CLIP_X(vcs->clipping.right); + + /* set the size of actual content in the buffer (DECIMATION !) */ + fb->data_size = ((vcs->clipping.right - vcs->clipping.left) / + vcs->decimation) * + ((vcs->clipping.bottom - vcs->clipping.top) / + vcs->decimation) * + vino_data_formats[vcs->data_format].bpp; + + ch->frame_rate = vcs->framert_reg; + + ctrl = vino->control; + intr = vino->intr_status; + + if (vcs->channel == VINO_CHANNEL_A) { + /* All interrupt conditions for this channel was cleared + * so clear the interrupt status register and enable + * interrupts */ + intr &= ~VINO_INTSTAT_A; + ctrl |= VINO_CTRL_A_INT; + + /* enable synchronization */ + ctrl |= VINO_CTRL_A_SYNC_ENBL; + + /* enable frame assembly */ + ctrl |= VINO_CTRL_A_INTERLEAVE_ENBL; + + /* set decimation used */ + if (vcs->decimation < 2) + ctrl &= ~VINO_CTRL_A_DEC_ENBL; + else { + ctrl |= VINO_CTRL_A_DEC_ENBL; + ctrl &= ~VINO_CTRL_A_DEC_SCALE_MASK; + ctrl |= (vcs->decimation - 1) << + VINO_CTRL_A_DEC_SCALE_SHIFT; + } + + /* select input interface */ + if (vcs->input == VINO_INPUT_D1) + ctrl |= VINO_CTRL_A_SELECT; + else + ctrl &= ~VINO_CTRL_A_SELECT; + + /* palette */ + ctrl &= ~(VINO_CTRL_A_LUMA_ONLY | VINO_CTRL_A_RGB | + VINO_CTRL_A_DITHER); + } else { + intr &= ~VINO_INTSTAT_B; + ctrl |= VINO_CTRL_B_INT; + + ctrl |= VINO_CTRL_B_SYNC_ENBL; + ctrl |= VINO_CTRL_B_INTERLEAVE_ENBL; + + if (vcs->decimation < 2) + ctrl &= ~VINO_CTRL_B_DEC_ENBL; + else { + ctrl |= VINO_CTRL_B_DEC_ENBL; + ctrl &= ~VINO_CTRL_B_DEC_SCALE_MASK; + ctrl |= (vcs->decimation - 1) << + VINO_CTRL_B_DEC_SCALE_SHIFT; + + } + if (vcs->input == VINO_INPUT_D1) + ctrl |= VINO_CTRL_B_SELECT; + else + ctrl &= ~VINO_CTRL_B_SELECT; + + ctrl &= ~(VINO_CTRL_B_LUMA_ONLY | VINO_CTRL_B_RGB | + VINO_CTRL_B_DITHER); + } + + /* set palette */ + fb->data_format = vcs->data_format; + + switch (vcs->data_format) { + case VINO_DATA_FMT_GREY: + ctrl |= (vcs->channel == VINO_CHANNEL_A) ? + VINO_CTRL_A_LUMA_ONLY : VINO_CTRL_B_LUMA_ONLY; + break; + case VINO_DATA_FMT_RGB32: + ctrl |= (vcs->channel == VINO_CHANNEL_A) ? + VINO_CTRL_A_RGB : VINO_CTRL_B_RGB; + break; + case VINO_DATA_FMT_YUV: + /* nothing needs to be done */ + break; + case VINO_DATA_FMT_RGB332: + ctrl |= (vcs->channel == VINO_CHANNEL_A) ? + VINO_CTRL_A_RGB | VINO_CTRL_A_DITHER : + VINO_CTRL_B_RGB | VINO_CTRL_B_DITHER; + break; + } + + vino->intr_status = intr; + vino->control = ctrl; + + return 0; +} + +/* (execute only with vino_lock locked) */ +static inline void vino_dma_start(struct vino_channel_settings *vcs) +{ + u32 ctrl = vino->control; + + dprintk("vino_dma_start():\n"); + ctrl |= (vcs->channel == VINO_CHANNEL_A) ? + VINO_CTRL_A_DMA_ENBL : VINO_CTRL_B_DMA_ENBL; + vino->control = ctrl; +} + +/* (execute only with vino_lock locked) */ +static inline void vino_dma_stop(struct vino_channel_settings *vcs) +{ + u32 ctrl = vino->control; + + ctrl &= (vcs->channel == VINO_CHANNEL_A) ? + ~VINO_CTRL_A_DMA_ENBL : ~VINO_CTRL_B_DMA_ENBL; + ctrl &= (vcs->channel == VINO_CHANNEL_A) ? + ~VINO_CTRL_A_INT : ~VINO_CTRL_B_INT; + vino->control = ctrl; + dprintk("vino_dma_stop():\n"); +} + +/* + * Load dummy page to descriptor registers. This prevents generating of + * spurious interrupts. (execute only with vino_lock locked) + */ +static void vino_clear_interrupt(struct vino_channel_settings *vcs) +{ + struct sgi_vino_channel *ch; + + ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; + + ch->page_index = 0; + ch->line_count = 0; + + ch->start_desc_tbl = vino_drvdata->dummy_desc_table.dma; + ch->next_4_desc = vino_drvdata->dummy_desc_table.dma; + + udelay(VINO_DESC_FETCH_DELAY); + dprintk("channel %c clear interrupt condition\n", + (vcs->channel == VINO_CHANNEL_A) ? 'A':'B'); +} + +static int vino_capture(struct vino_channel_settings *vcs, + struct vino_framebuffer *fb) +{ + int err = 0; + unsigned long flags, flags2; + + spin_lock_irqsave(&fb->state_lock, flags); + + if (fb->state == VINO_FRAMEBUFFER_IN_USE) + err = -EBUSY; + fb->state = VINO_FRAMEBUFFER_IN_USE; + + spin_unlock_irqrestore(&fb->state_lock, flags); + + if (err) + return err; + + spin_lock_irqsave(&vino_drvdata->vino_lock, flags); + spin_lock_irqsave(&vino_drvdata->input_lock, flags2); + + vino_dma_setup(vcs, fb); + vino_dma_start(vcs); + + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags2); + spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); + + return err; +} + +static +struct vino_framebuffer *vino_capture_enqueue(struct + vino_channel_settings *vcs, + unsigned int index) +{ + struct vino_framebuffer *fb; + unsigned long flags; + + dprintk("vino_capture_enqueue():\n"); + + spin_lock_irqsave(&vcs->capture_lock, flags); + + fb = vino_queue_add(&vcs->fb_queue, index); + if (fb == NULL) { + dprintk("vino_capture_enqueue(): vino_queue_add() failed, " + "queue full?\n"); + goto out; + } +out: + spin_unlock_irqrestore(&vcs->capture_lock, flags); + + return fb; +} + +static int vino_capture_next(struct vino_channel_settings *vcs, int start) +{ + struct vino_framebuffer *fb; + unsigned int incoming, id; + int err = 0; + unsigned long flags; + + dprintk("vino_capture_next():\n"); + + spin_lock_irqsave(&vcs->capture_lock, flags); + + if (start) { + /* start capture only if capture isn't in progress already */ + if (vcs->capturing) { + spin_unlock_irqrestore(&vcs->capture_lock, flags); + return 0; + } + + } else { + /* capture next frame: + * stop capture if capturing is not set */ + if (!vcs->capturing) { + spin_unlock_irqrestore(&vcs->capture_lock, flags); + return 0; + } + } + + err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); + if (err) { + dprintk("vino_capture_next(): vino_queue_get_incoming() " + "failed\n"); + err = -EINVAL; + goto out; + } + if (incoming == 0) { + dprintk("vino_capture_next(): no buffers available\n"); + goto out; + } + + fb = vino_queue_peek(&vcs->fb_queue, &id); + if (fb == NULL) { + dprintk("vino_capture_next(): vino_queue_peek() failed\n"); + err = -EINVAL; + goto out; + } + + if (start) { + vcs->capturing = 1; + } + + spin_unlock_irqrestore(&vcs->capture_lock, flags); + + err = vino_capture(vcs, fb); + + return err; + +out: + vcs->capturing = 0; + spin_unlock_irqrestore(&vcs->capture_lock, flags); + + return err; +} + +static inline int vino_is_capturing(struct vino_channel_settings *vcs) +{ + int ret; + unsigned long flags; + + spin_lock_irqsave(&vcs->capture_lock, flags); + + ret = vcs->capturing; + + spin_unlock_irqrestore(&vcs->capture_lock, flags); + + return ret; +} + +/* waits until a frame is captured */ +static int vino_wait_for_frame(struct vino_channel_settings *vcs) +{ + wait_queue_t wait; + int err = 0; + + dprintk("vino_wait_for_frame():\n"); + + init_waitqueue_entry(&wait, current); + /* add ourselves into wait queue */ + add_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); + + /* to ensure that schedule_timeout will return immediately + * if VINO interrupt was triggered meanwhile */ + schedule_timeout_interruptible(msecs_to_jiffies(100)); + + if (signal_pending(current)) + err = -EINTR; + + remove_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); + + dprintk("vino_wait_for_frame(): waiting for frame %s\n", + err ? "failed" : "ok"); + + return err; +} + +/* the function assumes that PAGE_SIZE % 4 == 0 */ +static void vino_convert_to_rgba(struct vino_framebuffer *fb) { + unsigned char *pageptr; + unsigned int page, i; + unsigned char a; + + for (page = 0; page < fb->desc_table.page_count; page++) { + pageptr = (unsigned char *)fb->desc_table.virtual[page]; + + for (i = 0; i < PAGE_SIZE; i += 4) { + a = pageptr[0]; + pageptr[0] = pageptr[3]; + pageptr[1] = pageptr[2]; + pageptr[2] = pageptr[1]; + pageptr[3] = a; + pageptr += 4; + } + } +} + +/* checks if the buffer is in correct state and syncs data */ +static int vino_check_buffer(struct vino_channel_settings *vcs, + struct vino_framebuffer *fb) +{ + int err = 0; + unsigned long flags; + + dprintk("vino_check_buffer():\n"); + + spin_lock_irqsave(&fb->state_lock, flags); + switch (fb->state) { + case VINO_FRAMEBUFFER_IN_USE: + err = -EIO; + break; + case VINO_FRAMEBUFFER_READY: + vino_sync_buffer(fb); + fb->state = VINO_FRAMEBUFFER_UNUSED; + break; + default: + err = -EINVAL; + } + spin_unlock_irqrestore(&fb->state_lock, flags); + + if (!err) { + if (vino_pixel_conversion + && (fb->data_format == VINO_DATA_FMT_RGB32)) { + vino_convert_to_rgba(fb); + } + } else if (err && (err != -EINVAL)) { + dprintk("vino_check_buffer(): buffer not ready\n"); + + spin_lock_irqsave(&vino_drvdata->vino_lock, flags); + vino_dma_stop(vcs); + vino_clear_interrupt(vcs); + spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); + } + + return err; +} + +/* forcefully terminates capture */ +static void vino_capture_stop(struct vino_channel_settings *vcs) +{ + unsigned int incoming = 0, outgoing = 0, id; + unsigned long flags, flags2; + + dprintk("vino_capture_stop():\n"); + + spin_lock_irqsave(&vcs->capture_lock, flags); + + /* unset capturing to stop queue processing */ + vcs->capturing = 0; + + spin_lock_irqsave(&vino_drvdata->vino_lock, flags2); + + vino_dma_stop(vcs); + vino_clear_interrupt(vcs); + + spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags2); + + /* remove all items from the queue */ + if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { + dprintk("vino_capture_stop(): " + "vino_queue_get_incoming() failed\n"); + goto out; + } + while (incoming > 0) { + vino_queue_transfer(&vcs->fb_queue); + + if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { + dprintk("vino_capture_stop(): " + "vino_queue_get_incoming() failed\n"); + goto out; + } + } + + if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { + dprintk("vino_capture_stop(): " + "vino_queue_get_outgoing() failed\n"); + goto out; + } + while (outgoing > 0) { + vino_queue_remove(&vcs->fb_queue, &id); + + if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { + dprintk("vino_capture_stop(): " + "vino_queue_get_outgoing() failed\n"); + goto out; + } + } + +out: + spin_unlock_irqrestore(&vcs->capture_lock, flags); +} + +#if 0 +static int vino_capture_failed(struct vino_channel_settings *vcs) +{ + struct vino_framebuffer *fb; + unsigned long flags; + unsigned int i; + int ret; + + dprintk("vino_capture_failed():\n"); + + spin_lock_irqsave(&vino_drvdata->vino_lock, flags); + + vino_dma_stop(vcs); + vino_clear_interrupt(vcs); + + spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); + + ret = vino_queue_get_incoming(&vcs->fb_queue, &i); + if (ret == VINO_QUEUE_ERROR) { + dprintk("vino_queue_get_incoming() failed\n"); + return -EINVAL; + } + if (i == 0) { + /* no buffers to process */ + return 0; + } + + fb = vino_queue_peek(&vcs->fb_queue, &i); + if (fb == NULL) { + dprintk("vino_queue_peek() failed\n"); + return -EINVAL; + } + + spin_lock_irqsave(&fb->state_lock, flags); + if (fb->state == VINO_FRAMEBUFFER_IN_USE) { + fb->state = VINO_FRAMEBUFFER_UNUSED; + vino_queue_transfer(&vcs->fb_queue); + vino_queue_remove(&vcs->fb_queue, &i); + /* we should actually discard the newest frame, + * but who cares ... */ + } + spin_unlock_irqrestore(&fb->state_lock, flags); + + return 0; +} +#endif + +static void vino_skip_frame(struct vino_channel_settings *vcs) +{ + struct vino_framebuffer *fb; + unsigned long flags; + unsigned int id; + + spin_lock_irqsave(&vcs->capture_lock, flags); + fb = vino_queue_peek(&vcs->fb_queue, &id); + if (!fb) { + spin_unlock_irqrestore(&vcs->capture_lock, flags); + dprintk("vino_skip_frame(): vino_queue_peek() failed!\n"); + return; + } + spin_unlock_irqrestore(&vcs->capture_lock, flags); + + spin_lock_irqsave(&fb->state_lock, flags); + fb->state = VINO_FRAMEBUFFER_UNUSED; + spin_unlock_irqrestore(&fb->state_lock, flags); + + vino_capture_next(vcs, 0); +} + +static void vino_frame_done(struct vino_channel_settings *vcs) +{ + struct vino_framebuffer *fb; + unsigned long flags; + + spin_lock_irqsave(&vcs->capture_lock, flags); + fb = vino_queue_transfer(&vcs->fb_queue); + if (!fb) { + spin_unlock_irqrestore(&vcs->capture_lock, flags); + dprintk("vino_frame_done(): vino_queue_transfer() failed!\n"); + return; + } + spin_unlock_irqrestore(&vcs->capture_lock, flags); + + fb->frame_counter = vcs->int_data.frame_counter; + memcpy(&fb->timestamp, &vcs->int_data.timestamp, + sizeof(struct timeval)); + + spin_lock_irqsave(&fb->state_lock, flags); + if (fb->state == VINO_FRAMEBUFFER_IN_USE) + fb->state = VINO_FRAMEBUFFER_READY; + spin_unlock_irqrestore(&fb->state_lock, flags); + + wake_up(&vcs->fb_queue.frame_wait_queue); + + vino_capture_next(vcs, 0); +} + +static void vino_capture_tasklet(unsigned long channel) { + struct vino_channel_settings *vcs; + + vcs = (channel == VINO_CHANNEL_A) + ? &vino_drvdata->a : &vino_drvdata->b; + + if (vcs->int_data.skip) + vcs->int_data.skip_count++; + + if (vcs->int_data.skip && (vcs->int_data.skip_count + <= VINO_MAX_FRAME_SKIP_COUNT)) { + vino_skip_frame(vcs); + } else { + vcs->int_data.skip_count = 0; + vino_frame_done(vcs); + } +} + +static irqreturn_t vino_interrupt(int irq, void *dev_id) +{ + u32 ctrl, intr; + unsigned int fc_a, fc_b; + int handled_a = 0, skip_a = 0, done_a = 0; + int handled_b = 0, skip_b = 0, done_b = 0; + +#ifdef VINO_DEBUG_INT + int loop = 0; + unsigned int line_count = vino->a.line_count, + page_index = vino->a.page_index, + field_counter = vino->a.field_counter, + start_desc_tbl = vino->a.start_desc_tbl, + next_4_desc = vino->a.next_4_desc; + unsigned int line_count_2, + page_index_2, + field_counter_2, + start_desc_tbl_2, + next_4_desc_2; +#endif + + spin_lock(&vino_drvdata->vino_lock); + + while ((intr = vino->intr_status)) { + fc_a = vino->a.field_counter >> 1; + fc_b = vino->b.field_counter >> 1; + + /* handle error-interrupts in some special way ? + * --> skips frames */ + if (intr & VINO_INTSTAT_A) { + if (intr & VINO_INTSTAT_A_EOF) { + vino_drvdata->a.field++; + if (vino_drvdata->a.field > 1) { + vino_dma_stop(&vino_drvdata->a); + vino_clear_interrupt(&vino_drvdata->a); + vino_drvdata->a.field = 0; + done_a = 1; + } else { + if (vino->a.page_index + != vino_drvdata->a.line_size) { + vino->a.line_count = 0; + vino->a.page_index = + vino_drvdata-> + a.line_size; + vino->a.next_4_desc = + vino->a.start_desc_tbl; + } + } + dprintk("channel A end-of-field " + "interrupt: %04x\n", intr); + } else { + vino_dma_stop(&vino_drvdata->a); + vino_clear_interrupt(&vino_drvdata->a); + vino_drvdata->a.field = 0; + skip_a = 1; + dprintk("channel A error interrupt: %04x\n", + intr); + } + +#ifdef VINO_DEBUG_INT + line_count_2 = vino->a.line_count; + page_index_2 = vino->a.page_index; + field_counter_2 = vino->a.field_counter; + start_desc_tbl_2 = vino->a.start_desc_tbl; + next_4_desc_2 = vino->a.next_4_desc; + + printk("intr = %04x, loop = %d, field = %d\n", + intr, loop, vino_drvdata->a.field); + printk("1- line count = %04d, page index = %04d, " + "start = %08x, next = %08x\n" + " fieldc = %d, framec = %d\n", + line_count, page_index, start_desc_tbl, + next_4_desc, field_counter, fc_a); + printk("12-line count = %04d, page index = %04d, " + " start = %08x, next = %08x\n", + line_count_2, page_index_2, start_desc_tbl_2, + next_4_desc_2); + + if (done_a) + printk("\n"); +#endif + } + + if (intr & VINO_INTSTAT_B) { + if (intr & VINO_INTSTAT_B_EOF) { + vino_drvdata->b.field++; + if (vino_drvdata->b.field > 1) { + vino_dma_stop(&vino_drvdata->b); + vino_clear_interrupt(&vino_drvdata->b); + vino_drvdata->b.field = 0; + done_b = 1; + } + dprintk("channel B end-of-field " + "interrupt: %04x\n", intr); + } else { + vino_dma_stop(&vino_drvdata->b); + vino_clear_interrupt(&vino_drvdata->b); + vino_drvdata->b.field = 0; + skip_b = 1; + dprintk("channel B error interrupt: %04x\n", + intr); + } + } + + /* Always remember to clear interrupt status. + * Disable VINO interrupts while we do this. */ + ctrl = vino->control; + vino->control = ctrl & ~(VINO_CTRL_A_INT | VINO_CTRL_B_INT); + vino->intr_status = ~intr; + vino->control = ctrl; + + spin_unlock(&vino_drvdata->vino_lock); + + if ((!handled_a) && (done_a || skip_a)) { + if (!skip_a) { + v4l2_get_timestamp( + &vino_drvdata->a.int_data.timestamp); + vino_drvdata->a.int_data.frame_counter = fc_a; + } + vino_drvdata->a.int_data.skip = skip_a; + + dprintk("channel A %s, interrupt: %d\n", + skip_a ? "skipping frame" : "frame done", + intr); + tasklet_hi_schedule(&vino_tasklet_a); + handled_a = 1; + } + + if ((!handled_b) && (done_b || skip_b)) { + if (!skip_b) { + v4l2_get_timestamp( + &vino_drvdata->b.int_data.timestamp); + vino_drvdata->b.int_data.frame_counter = fc_b; + } + vino_drvdata->b.int_data.skip = skip_b; + + dprintk("channel B %s, interrupt: %d\n", + skip_b ? "skipping frame" : "frame done", + intr); + tasklet_hi_schedule(&vino_tasklet_b); + handled_b = 1; + } + +#ifdef VINO_DEBUG_INT + loop++; +#endif + spin_lock(&vino_drvdata->vino_lock); + } + + spin_unlock(&vino_drvdata->vino_lock); + + return IRQ_HANDLED; +} + +/* VINO video input management */ + +static int vino_get_saa7191_input(int input) +{ + switch (input) { + case VINO_INPUT_COMPOSITE: + return SAA7191_INPUT_COMPOSITE; + case VINO_INPUT_SVIDEO: + return SAA7191_INPUT_SVIDEO; + default: + printk(KERN_ERR "VINO: vino_get_saa7191_input(): " + "invalid input!\n"); + return -1; + } +} + +/* execute with input_lock locked */ +static int vino_is_input_owner(struct vino_channel_settings *vcs) +{ + switch(vcs->input) { + case VINO_INPUT_COMPOSITE: + case VINO_INPUT_SVIDEO: + return vino_drvdata->decoder_owner == vcs->channel; + case VINO_INPUT_D1: + return vino_drvdata->camera_owner == vcs->channel; + default: + return 0; + } +} + +static int vino_acquire_input(struct vino_channel_settings *vcs) +{ + unsigned long flags; + int ret = 0; + + dprintk("vino_acquire_input():\n"); + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + /* First try D1 and then SAA7191 */ + if (vino_drvdata->camera + && (vino_drvdata->camera_owner == VINO_NO_CHANNEL)) { + vino_drvdata->camera_owner = vcs->channel; + vcs->input = VINO_INPUT_D1; + vcs->data_norm = VINO_DATA_NORM_D1; + } else if (vino_drvdata->decoder + && (vino_drvdata->decoder_owner == VINO_NO_CHANNEL)) { + int input; + int data_norm = 0; + v4l2_std_id norm; + + input = VINO_INPUT_COMPOSITE; + + ret = decoder_call(video, s_routing, + vino_get_saa7191_input(input), 0, 0); + if (ret) { + ret = -EINVAL; + goto out; + } + + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + /* Don't hold spinlocks while auto-detecting norm + * as it may take a while... */ + + ret = decoder_call(video, querystd, &norm); + if (!ret) { + for (data_norm = 0; data_norm < 3; data_norm++) { + if (vino_data_norms[data_norm].std & norm) + break; + } + if (data_norm == 3) + data_norm = VINO_DATA_NORM_PAL; + ret = decoder_call(video, s_std, norm); + } + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + if (ret) { + ret = -EINVAL; + goto out; + } + + vino_drvdata->decoder_owner = vcs->channel; + + vcs->input = input; + vcs->data_norm = data_norm; + } else { + vcs->input = (vcs->channel == VINO_CHANNEL_A) ? + vino_drvdata->b.input : vino_drvdata->a.input; + vcs->data_norm = (vcs->channel == VINO_CHANNEL_A) ? + vino_drvdata->b.data_norm : vino_drvdata->a.data_norm; + } + + if (vcs->input == VINO_INPUT_NONE) { + ret = -ENODEV; + goto out; + } + + vino_set_default_clipping(vcs); + vino_set_default_scaling(vcs); + vino_set_default_framerate(vcs); + + dprintk("vino_acquire_input(): %s\n", vino_inputs[vcs->input].name); + +out: + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + return ret; +} + +static int vino_set_input(struct vino_channel_settings *vcs, int input) +{ + struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? + &vino_drvdata->b : &vino_drvdata->a; + unsigned long flags; + int ret = 0; + + dprintk("vino_set_input():\n"); + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + if (vcs->input == input) + goto out; + + switch (input) { + case VINO_INPUT_COMPOSITE: + case VINO_INPUT_SVIDEO: + if (!vino_drvdata->decoder) { + ret = -EINVAL; + goto out; + } + + if (vino_drvdata->decoder_owner == VINO_NO_CHANNEL) { + vino_drvdata->decoder_owner = vcs->channel; + } + + if (vino_drvdata->decoder_owner == vcs->channel) { + int data_norm = 0; + v4l2_std_id norm; + + ret = decoder_call(video, s_routing, + vino_get_saa7191_input(input), 0, 0); + if (ret) { + vino_drvdata->decoder_owner = VINO_NO_CHANNEL; + ret = -EINVAL; + goto out; + } + + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + /* Don't hold spinlocks while auto-detecting norm + * as it may take a while... */ + + ret = decoder_call(video, querystd, &norm); + if (!ret) { + for (data_norm = 0; data_norm < 3; data_norm++) { + if (vino_data_norms[data_norm].std & norm) + break; + } + if (data_norm == 3) + data_norm = VINO_DATA_NORM_PAL; + ret = decoder_call(video, s_std, norm); + } + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + if (ret) { + vino_drvdata->decoder_owner = VINO_NO_CHANNEL; + ret = -EINVAL; + goto out; + } + + vcs->input = input; + vcs->data_norm = data_norm; + } else { + if (input != vcs2->input) { + ret = -EBUSY; + goto out; + } + + vcs->input = input; + vcs->data_norm = vcs2->data_norm; + } + + if (vino_drvdata->camera_owner == vcs->channel) { + /* Transfer the ownership or release the input */ + if (vcs2->input == VINO_INPUT_D1) { + vino_drvdata->camera_owner = vcs2->channel; + } else { + vino_drvdata->camera_owner = VINO_NO_CHANNEL; + } + } + break; + case VINO_INPUT_D1: + if (!vino_drvdata->camera) { + ret = -EINVAL; + goto out; + } + + if (vino_drvdata->camera_owner == VINO_NO_CHANNEL) + vino_drvdata->camera_owner = vcs->channel; + + if (vino_drvdata->decoder_owner == vcs->channel) { + /* Transfer the ownership or release the input */ + if ((vcs2->input == VINO_INPUT_COMPOSITE) || + (vcs2->input == VINO_INPUT_SVIDEO)) { + vino_drvdata->decoder_owner = vcs2->channel; + } else { + vino_drvdata->decoder_owner = VINO_NO_CHANNEL; + } + } + + vcs->input = input; + vcs->data_norm = VINO_DATA_NORM_D1; + break; + default: + ret = -EINVAL; + goto out; + } + + vino_set_default_clipping(vcs); + vino_set_default_scaling(vcs); + vino_set_default_framerate(vcs); + + dprintk("vino_set_input(): %s\n", vino_inputs[vcs->input].name); + +out: + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + return ret; +} + +static void vino_release_input(struct vino_channel_settings *vcs) +{ + struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? + &vino_drvdata->b : &vino_drvdata->a; + unsigned long flags; + + dprintk("vino_release_input():\n"); + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + /* Release ownership of the channel + * and if the other channel takes input from + * the same source, transfer the ownership */ + if (vino_drvdata->camera_owner == vcs->channel) { + if (vcs2->input == VINO_INPUT_D1) { + vino_drvdata->camera_owner = vcs2->channel; + } else { + vino_drvdata->camera_owner = VINO_NO_CHANNEL; + } + } else if (vino_drvdata->decoder_owner == vcs->channel) { + if ((vcs2->input == VINO_INPUT_COMPOSITE) || + (vcs2->input == VINO_INPUT_SVIDEO)) { + vino_drvdata->decoder_owner = vcs2->channel; + } else { + vino_drvdata->decoder_owner = VINO_NO_CHANNEL; + } + } + vcs->input = VINO_INPUT_NONE; + + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); +} + +/* execute with input_lock locked */ +static int vino_set_data_norm(struct vino_channel_settings *vcs, + unsigned int data_norm, + unsigned long *flags) +{ + int err = 0; + + if (data_norm == vcs->data_norm) + return 0; + + switch (vcs->input) { + case VINO_INPUT_D1: + /* only one "norm" supported */ + if (data_norm != VINO_DATA_NORM_D1) + return -EINVAL; + break; + case VINO_INPUT_COMPOSITE: + case VINO_INPUT_SVIDEO: { + v4l2_std_id norm; + + if ((data_norm != VINO_DATA_NORM_PAL) + && (data_norm != VINO_DATA_NORM_NTSC) + && (data_norm != VINO_DATA_NORM_SECAM)) + return -EINVAL; + + spin_unlock_irqrestore(&vino_drvdata->input_lock, *flags); + + /* Don't hold spinlocks while setting norm + * as it may take a while... */ + + norm = vino_data_norms[data_norm].std; + err = decoder_call(video, s_std, norm); + + spin_lock_irqsave(&vino_drvdata->input_lock, *flags); + + if (err) + goto out; + + vcs->data_norm = data_norm; + + vino_set_default_clipping(vcs); + vino_set_default_scaling(vcs); + vino_set_default_framerate(vcs); + break; + } + default: + return -EINVAL; + } + +out: + return err; +} + +/* V4L2 helper functions */ + +static int vino_find_data_format(__u32 pixelformat) +{ + int i; + + for (i = 0; i < VINO_DATA_FMT_COUNT; i++) { + if (vino_data_formats[i].pixelformat == pixelformat) + return i; + } + + return VINO_DATA_FMT_NONE; +} + +static int vino_int_enum_input(struct vino_channel_settings *vcs, __u32 index) +{ + int input = VINO_INPUT_NONE; + unsigned long flags; + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + if (vino_drvdata->decoder && vino_drvdata->camera) { + switch (index) { + case 0: + input = VINO_INPUT_COMPOSITE; + break; + case 1: + input = VINO_INPUT_SVIDEO; + break; + case 2: + input = VINO_INPUT_D1; + break; + } + } else if (vino_drvdata->decoder) { + switch (index) { + case 0: + input = VINO_INPUT_COMPOSITE; + break; + case 1: + input = VINO_INPUT_SVIDEO; + break; + } + } else if (vino_drvdata->camera) { + switch (index) { + case 0: + input = VINO_INPUT_D1; + break; + } + } + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + return input; +} + +/* execute with input_lock locked */ +static __u32 vino_find_input_index(struct vino_channel_settings *vcs) +{ + __u32 index = 0; + // FIXME: detect when no inputs available + + if (vino_drvdata->decoder && vino_drvdata->camera) { + switch (vcs->input) { + case VINO_INPUT_COMPOSITE: + index = 0; + break; + case VINO_INPUT_SVIDEO: + index = 1; + break; + case VINO_INPUT_D1: + index = 2; + break; + } + } else if (vino_drvdata->decoder) { + switch (vcs->input) { + case VINO_INPUT_COMPOSITE: + index = 0; + break; + case VINO_INPUT_SVIDEO: + index = 1; + break; + } + } else if (vino_drvdata->camera) { + switch (vcs->input) { + case VINO_INPUT_D1: + index = 0; + break; + } + } + + return index; +} + +/* V4L2 ioctls */ + +static int vino_querycap(struct file *file, void *__fh, + struct v4l2_capability *cap) +{ + memset(cap, 0, sizeof(struct v4l2_capability)); + + strcpy(cap->driver, vino_driver_name); + strcpy(cap->card, vino_driver_description); + strcpy(cap->bus_info, vino_bus_name); + cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; + cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; + return 0; +} + +static int vino_enum_input(struct file *file, void *__fh, + struct v4l2_input *i) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + __u32 index = i->index; + int input; + dprintk("requested index = %d\n", index); + + input = vino_int_enum_input(vcs, index); + if (input == VINO_INPUT_NONE) + return -EINVAL; + + i->type = V4L2_INPUT_TYPE_CAMERA; + i->std = vino_inputs[input].std; + strcpy(i->name, vino_inputs[input].name); + + if (input == VINO_INPUT_COMPOSITE || input == VINO_INPUT_SVIDEO) + decoder_call(video, g_input_status, &i->status); + return 0; +} + +static int vino_g_input(struct file *file, void *__fh, + unsigned int *i) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + __u32 index; + int input; + unsigned long flags; + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + input = vcs->input; + index = vino_find_input_index(vcs); + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + dprintk("input = %d\n", input); + + if (input == VINO_INPUT_NONE) { + return -EINVAL; + } + + *i = index; + + return 0; +} + +static int vino_s_input(struct file *file, void *__fh, + unsigned int i) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + int input; + dprintk("requested input = %d\n", i); + + input = vino_int_enum_input(vcs, i); + if (input == VINO_INPUT_NONE) + return -EINVAL; + + return vino_set_input(vcs, input); +} + +static int vino_querystd(struct file *file, void *__fh, + v4l2_std_id *std) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned long flags; + int err = 0; + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + switch (vcs->input) { + case VINO_INPUT_D1: + *std = vino_inputs[vcs->input].std; + break; + case VINO_INPUT_COMPOSITE: + case VINO_INPUT_SVIDEO: { + decoder_call(video, querystd, std); + break; + } + default: + err = -EINVAL; + } + + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + return err; +} + +static int vino_g_std(struct file *file, void *__fh, + v4l2_std_id *std) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned long flags; + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + *std = vino_data_norms[vcs->data_norm].std; + dprintk("current standard = %d\n", vcs->data_norm); + + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + return 0; +} + +static int vino_s_std(struct file *file, void *__fh, + v4l2_std_id std) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + if (!vino_is_input_owner(vcs)) { + ret = -EBUSY; + goto out; + } + + /* check if the standard is valid for the current input */ + if (std & vino_inputs[vcs->input].std) { + dprintk("standard accepted\n"); + + /* change the video norm for SAA7191 + * and accept NTSC for D1 (do nothing) */ + + if (vcs->input == VINO_INPUT_D1) + goto out; + + if (std & V4L2_STD_PAL) { + ret = vino_set_data_norm(vcs, VINO_DATA_NORM_PAL, + &flags); + } else if (std & V4L2_STD_NTSC) { + ret = vino_set_data_norm(vcs, VINO_DATA_NORM_NTSC, + &flags); + } else if (std & V4L2_STD_SECAM) { + ret = vino_set_data_norm(vcs, VINO_DATA_NORM_SECAM, + &flags); + } else { + ret = -EINVAL; + } + + if (ret) { + ret = -EINVAL; + } + } else { + ret = -EINVAL; + } + +out: + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + return ret; +} + +static int vino_enum_fmt_vid_cap(struct file *file, void *__fh, + struct v4l2_fmtdesc *fd) +{ + dprintk("format index = %d\n", fd->index); + + if (fd->index >= VINO_DATA_FMT_COUNT) + return -EINVAL; + dprintk("format name = %s\n", vino_data_formats[fd->index].description); + + fd->pixelformat = vino_data_formats[fd->index].pixelformat; + strcpy(fd->description, vino_data_formats[fd->index].description); + return 0; +} + +static int vino_try_fmt_vid_cap(struct file *file, void *__fh, + struct v4l2_format *f) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + struct vino_channel_settings tempvcs; + unsigned long flags; + struct v4l2_pix_format *pf = &f->fmt.pix; + + dprintk("requested: w = %d, h = %d\n", + pf->width, pf->height); + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + memcpy(&tempvcs, vcs, sizeof(struct vino_channel_settings)); + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + tempvcs.data_format = vino_find_data_format(pf->pixelformat); + if (tempvcs.data_format == VINO_DATA_FMT_NONE) { + tempvcs.data_format = VINO_DATA_FMT_GREY; + pf->pixelformat = + vino_data_formats[tempvcs.data_format]. + pixelformat; + } + + /* data format must be set before clipping/scaling */ + vino_set_scaling(&tempvcs, pf->width, pf->height); + + dprintk("data format = %s\n", + vino_data_formats[tempvcs.data_format].description); + + pf->width = (tempvcs.clipping.right - tempvcs.clipping.left) / + tempvcs.decimation; + pf->height = (tempvcs.clipping.bottom - tempvcs.clipping.top) / + tempvcs.decimation; + + pf->field = V4L2_FIELD_INTERLACED; + pf->bytesperline = tempvcs.line_size; + pf->sizeimage = tempvcs.line_size * + (tempvcs.clipping.bottom - tempvcs.clipping.top) / + tempvcs.decimation; + pf->colorspace = + vino_data_formats[tempvcs.data_format].colorspace; + + return 0; +} + +static int vino_g_fmt_vid_cap(struct file *file, void *__fh, + struct v4l2_format *f) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned long flags; + struct v4l2_pix_format *pf = &f->fmt.pix; + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + pf->width = (vcs->clipping.right - vcs->clipping.left) / + vcs->decimation; + pf->height = (vcs->clipping.bottom - vcs->clipping.top) / + vcs->decimation; + pf->pixelformat = + vino_data_formats[vcs->data_format].pixelformat; + + pf->field = V4L2_FIELD_INTERLACED; + pf->bytesperline = vcs->line_size; + pf->sizeimage = vcs->line_size * + (vcs->clipping.bottom - vcs->clipping.top) / + vcs->decimation; + pf->colorspace = + vino_data_formats[vcs->data_format].colorspace; + + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + return 0; +} + +static int vino_s_fmt_vid_cap(struct file *file, void *__fh, + struct v4l2_format *f) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + int data_format; + unsigned long flags; + struct v4l2_pix_format *pf = &f->fmt.pix; + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + data_format = vino_find_data_format(pf->pixelformat); + + if (data_format == VINO_DATA_FMT_NONE) { + vcs->data_format = VINO_DATA_FMT_GREY; + pf->pixelformat = + vino_data_formats[vcs->data_format]. + pixelformat; + } else { + vcs->data_format = data_format; + } + + /* data format must be set before clipping/scaling */ + vino_set_scaling(vcs, pf->width, pf->height); + + dprintk("data format = %s\n", + vino_data_formats[vcs->data_format].description); + + pf->width = vcs->clipping.right - vcs->clipping.left; + pf->height = vcs->clipping.bottom - vcs->clipping.top; + + pf->field = V4L2_FIELD_INTERLACED; + pf->bytesperline = vcs->line_size; + pf->sizeimage = vcs->line_size * + (vcs->clipping.bottom - vcs->clipping.top) / + vcs->decimation; + pf->colorspace = + vino_data_formats[vcs->data_format].colorspace; + + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + return 0; +} + +static int vino_cropcap(struct file *file, void *__fh, + struct v4l2_cropcap *ccap) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + const struct vino_data_norm *norm; + unsigned long flags; + + switch (ccap->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + norm = &vino_data_norms[vcs->data_norm]; + + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + ccap->bounds.left = 0; + ccap->bounds.top = 0; + ccap->bounds.width = norm->width; + ccap->bounds.height = norm->height; + memcpy(&ccap->defrect, &ccap->bounds, + sizeof(struct v4l2_rect)); + + ccap->pixelaspect.numerator = 1; + ccap->pixelaspect.denominator = 1; + break; + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + default: + return -EINVAL; + } + + return 0; +} + +static int vino_g_crop(struct file *file, void *__fh, + struct v4l2_crop *c) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned long flags; + + switch (c->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + c->c.left = vcs->clipping.left; + c->c.top = vcs->clipping.top; + c->c.width = vcs->clipping.right - vcs->clipping.left; + c->c.height = vcs->clipping.bottom - vcs->clipping.top; + + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + break; + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + default: + return -EINVAL; + } + + return 0; +} + +static int vino_s_crop(struct file *file, void *__fh, + const struct v4l2_crop *c) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned long flags; + + switch (c->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + vino_set_clipping(vcs, c->c.left, c->c.top, + c->c.width, c->c.height); + + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + break; + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + default: + return -EINVAL; + } + + return 0; +} + +static int vino_g_parm(struct file *file, void *__fh, + struct v4l2_streamparm *sp) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned long flags; + struct v4l2_captureparm *cp = &sp->parm.capture; + + cp->capability = V4L2_CAP_TIMEPERFRAME; + cp->timeperframe.numerator = 1; + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + cp->timeperframe.denominator = vcs->fps; + + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + /* TODO: cp->readbuffers = xxx; */ + + return 0; +} + +static int vino_s_parm(struct file *file, void *__fh, + struct v4l2_streamparm *sp) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned long flags; + struct v4l2_captureparm *cp = &sp->parm.capture; + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + if ((cp->timeperframe.numerator == 0) || + (cp->timeperframe.denominator == 0)) { + /* reset framerate */ + vino_set_default_framerate(vcs); + } else { + vino_set_framerate(vcs, cp->timeperframe.denominator / + cp->timeperframe.numerator); + } + + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + return 0; +} + +static int vino_reqbufs(struct file *file, void *__fh, + struct v4l2_requestbuffers *rb) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + + if (vcs->reading) + return -EBUSY; + + /* TODO: check queue type */ + if (rb->memory != V4L2_MEMORY_MMAP) { + dprintk("type not mmap\n"); + return -EINVAL; + } + + dprintk("count = %d\n", rb->count); + if (rb->count > 0) { + if (vino_is_capturing(vcs)) { + dprintk("busy, capturing\n"); + return -EBUSY; + } + + if (vino_queue_has_mapped_buffers(&vcs->fb_queue)) { + dprintk("busy, buffers still mapped\n"); + return -EBUSY; + } else { + vcs->streaming = 0; + vino_queue_free(&vcs->fb_queue); + vino_queue_init(&vcs->fb_queue, &rb->count); + } + } else { + vcs->streaming = 0; + vino_capture_stop(vcs); + vino_queue_free(&vcs->fb_queue); + } + + return 0; +} + +static void vino_v4l2_get_buffer_status(struct vino_channel_settings *vcs, + struct vino_framebuffer *fb, + struct v4l2_buffer *b) +{ + if (vino_queue_outgoing_contains(&vcs->fb_queue, + fb->id)) { + b->flags &= ~V4L2_BUF_FLAG_QUEUED; + b->flags |= V4L2_BUF_FLAG_DONE; + } else if (vino_queue_incoming_contains(&vcs->fb_queue, + fb->id)) { + b->flags &= ~V4L2_BUF_FLAG_DONE; + b->flags |= V4L2_BUF_FLAG_QUEUED; + } else { + b->flags &= ~(V4L2_BUF_FLAG_DONE | + V4L2_BUF_FLAG_QUEUED); + } + + b->flags &= ~(V4L2_BUF_FLAG_TIMECODE); + + if (fb->map_count > 0) + b->flags |= V4L2_BUF_FLAG_MAPPED; + + b->flags &= ~V4L2_BUF_FLAG_TIMESTAMP_MASK; + b->flags |= V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + + b->index = fb->id; + b->memory = (vcs->fb_queue.type == VINO_MEMORY_MMAP) ? + V4L2_MEMORY_MMAP : V4L2_MEMORY_USERPTR; + b->m.offset = fb->offset; + b->bytesused = fb->data_size; + b->length = fb->size; + b->field = V4L2_FIELD_INTERLACED; + b->sequence = fb->frame_counter; + memcpy(&b->timestamp, &fb->timestamp, + sizeof(struct timeval)); + // b->input ? + + dprintk("buffer %d: length = %d, bytesused = %d, offset = %d\n", + fb->id, fb->size, fb->data_size, fb->offset); +} + +static int vino_querybuf(struct file *file, void *__fh, + struct v4l2_buffer *b) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + struct vino_framebuffer *fb; + + if (vcs->reading) + return -EBUSY; + + /* TODO: check queue type */ + if (b->index >= vino_queue_get_length(&vcs->fb_queue)) { + dprintk("invalid index = %d\n", + b->index); + return -EINVAL; + } + + fb = vino_queue_get_buffer(&vcs->fb_queue, + b->index); + if (fb == NULL) { + dprintk("vino_queue_get_buffer() failed"); + return -EINVAL; + } + + vino_v4l2_get_buffer_status(vcs, fb, b); + + return 0; +} + +static int vino_qbuf(struct file *file, void *__fh, + struct v4l2_buffer *b) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + struct vino_framebuffer *fb; + int ret; + + if (vcs->reading) + return -EBUSY; + + /* TODO: check queue type */ + if (b->memory != V4L2_MEMORY_MMAP) { + dprintk("type not mmap\n"); + return -EINVAL; + } + + fb = vino_capture_enqueue(vcs, b->index); + if (fb == NULL) + return -EINVAL; + + vino_v4l2_get_buffer_status(vcs, fb, b); + + if (vcs->streaming) { + ret = vino_capture_next(vcs, 1); + if (ret) + return ret; + } + + return 0; +} + +static int vino_dqbuf(struct file *file, void *__fh, + struct v4l2_buffer *b) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned int nonblocking = file->f_flags & O_NONBLOCK; + struct vino_framebuffer *fb; + unsigned int incoming, outgoing; + int err; + + if (vcs->reading) + return -EBUSY; + + /* TODO: check queue type */ + + err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); + if (err) { + dprintk("vino_queue_get_incoming() failed\n"); + return -EINVAL; + } + err = vino_queue_get_outgoing(&vcs->fb_queue, &outgoing); + if (err) { + dprintk("vino_queue_get_outgoing() failed\n"); + return -EINVAL; + } + + dprintk("incoming = %d, outgoing = %d\n", incoming, outgoing); + + if (outgoing == 0) { + if (incoming == 0) { + dprintk("no incoming or outgoing buffers\n"); + return -EINVAL; + } + if (nonblocking) { + dprintk("non-blocking I/O was selected and " + "there are no buffers to dequeue\n"); + return -EAGAIN; + } + + err = vino_wait_for_frame(vcs); + if (err) { + err = vino_wait_for_frame(vcs); + if (err) { + /* interrupted or no frames captured because of + * frame skipping */ + /* vino_capture_failed(vcs); */ + return -EIO; + } + } + } + + fb = vino_queue_remove(&vcs->fb_queue, &b->index); + if (fb == NULL) { + dprintk("vino_queue_remove() failed\n"); + return -EINVAL; + } + + err = vino_check_buffer(vcs, fb); + + vino_v4l2_get_buffer_status(vcs, fb, b); + + if (err) + return -EIO; + + return 0; +} + +static int vino_streamon(struct file *file, void *__fh, + enum v4l2_buf_type i) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned int incoming; + int ret; + if (vcs->reading) + return -EBUSY; + + if (vcs->streaming) + return 0; + + // TODO: check queue type + + if (vino_queue_get_length(&vcs->fb_queue) < 1) { + dprintk("no buffers allocated\n"); + return -EINVAL; + } + + ret = vino_queue_get_incoming(&vcs->fb_queue, &incoming); + if (ret) { + dprintk("vino_queue_get_incoming() failed\n"); + return -EINVAL; + } + + vcs->streaming = 1; + + if (incoming > 0) { + ret = vino_capture_next(vcs, 1); + if (ret) { + vcs->streaming = 0; + + dprintk("couldn't start capture\n"); + return -EINVAL; + } + } + + return 0; +} + +static int vino_streamoff(struct file *file, void *__fh, + enum v4l2_buf_type i) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + if (vcs->reading) + return -EBUSY; + + if (!vcs->streaming) + return 0; + + vcs->streaming = 0; + vino_capture_stop(vcs); + + return 0; +} + +static int vino_queryctrl(struct file *file, void *__fh, + struct v4l2_queryctrl *queryctrl) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned long flags; + int i; + int err = 0; + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + switch (vcs->input) { + case VINO_INPUT_D1: + for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { + if (vino_indycam_v4l2_controls[i].id == + queryctrl->id) { + memcpy(queryctrl, + &vino_indycam_v4l2_controls[i], + sizeof(struct v4l2_queryctrl)); + queryctrl->reserved[0] = 0; + goto found; + } + } + + err = -EINVAL; + break; + case VINO_INPUT_COMPOSITE: + case VINO_INPUT_SVIDEO: + for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { + if (vino_saa7191_v4l2_controls[i].id == + queryctrl->id) { + memcpy(queryctrl, + &vino_saa7191_v4l2_controls[i], + sizeof(struct v4l2_queryctrl)); + queryctrl->reserved[0] = 0; + goto found; + } + } + + err = -EINVAL; + break; + default: + err = -EINVAL; + } + + found: + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + return err; +} + +static int vino_g_ctrl(struct file *file, void *__fh, + struct v4l2_control *control) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned long flags; + int i; + int err = 0; + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + switch (vcs->input) { + case VINO_INPUT_D1: { + err = -EINVAL; + for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { + if (vino_indycam_v4l2_controls[i].id == control->id) { + err = 0; + break; + } + } + + if (err) + goto out; + + err = camera_call(core, g_ctrl, control); + if (err) + err = -EINVAL; + break; + } + case VINO_INPUT_COMPOSITE: + case VINO_INPUT_SVIDEO: { + err = -EINVAL; + for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { + if (vino_saa7191_v4l2_controls[i].id == control->id) { + err = 0; + break; + } + } + + if (err) + goto out; + + err = decoder_call(core, g_ctrl, control); + if (err) + err = -EINVAL; + break; + } + default: + err = -EINVAL; + } + +out: + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + return err; +} + +static int vino_s_ctrl(struct file *file, void *__fh, + struct v4l2_control *control) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned long flags; + int i; + int err = 0; + + spin_lock_irqsave(&vino_drvdata->input_lock, flags); + + if (!vino_is_input_owner(vcs)) { + err = -EBUSY; + goto out; + } + + switch (vcs->input) { + case VINO_INPUT_D1: { + err = -EINVAL; + for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { + if (vino_indycam_v4l2_controls[i].id == control->id) { + err = 0; + break; + } + } + if (err) + goto out; + if (control->value < vino_indycam_v4l2_controls[i].minimum || + control->value > vino_indycam_v4l2_controls[i].maximum) { + err = -ERANGE; + goto out; + } + err = camera_call(core, s_ctrl, control); + if (err) + err = -EINVAL; + break; + } + case VINO_INPUT_COMPOSITE: + case VINO_INPUT_SVIDEO: { + err = -EINVAL; + for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { + if (vino_saa7191_v4l2_controls[i].id == control->id) { + err = 0; + break; + } + } + if (err) + goto out; + if (control->value < vino_saa7191_v4l2_controls[i].minimum || + control->value > vino_saa7191_v4l2_controls[i].maximum) { + err = -ERANGE; + goto out; + } + + err = decoder_call(core, s_ctrl, control); + if (err) + err = -EINVAL; + break; + } + default: + err = -EINVAL; + } + +out: + spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); + + return err; +} + +/* File operations */ + +static int vino_open(struct file *file) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + int ret = 0; + dprintk("open(): channel = %c\n", + (vcs->channel == VINO_CHANNEL_A) ? 'A' : 'B'); + + mutex_lock(&vcs->mutex); + + if (vcs->users) { + dprintk("open(): driver busy\n"); + ret = -EBUSY; + goto out; + } + + ret = vino_acquire_input(vcs); + if (ret) { + dprintk("open(): vino_acquire_input() failed\n"); + goto out; + } + + vcs->users++; + + out: + mutex_unlock(&vcs->mutex); + + dprintk("open(): %s!\n", ret ? "failed" : "complete"); + + return ret; +} + +static int vino_close(struct file *file) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + dprintk("close():\n"); + + mutex_lock(&vcs->mutex); + + vcs->users--; + + if (!vcs->users) { + vino_release_input(vcs); + + /* stop DMA and free buffers */ + vino_capture_stop(vcs); + vino_queue_free(&vcs->fb_queue); + } + + mutex_unlock(&vcs->mutex); + + return 0; +} + +static void vino_vm_open(struct vm_area_struct *vma) +{ + struct vino_framebuffer *fb = vma->vm_private_data; + + fb->map_count++; + dprintk("vino_vm_open(): count = %d\n", fb->map_count); +} + +static void vino_vm_close(struct vm_area_struct *vma) +{ + struct vino_framebuffer *fb = vma->vm_private_data; + + fb->map_count--; + dprintk("vino_vm_close(): count = %d\n", fb->map_count); +} + +static const struct vm_operations_struct vino_vm_ops = { + .open = vino_vm_open, + .close = vino_vm_close, +}; + +static int vino_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + + unsigned long start = vma->vm_start; + unsigned long size = vma->vm_end - vma->vm_start; + unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; + + struct vino_framebuffer *fb = NULL; + unsigned int i, length; + int ret = 0; + + dprintk("mmap():\n"); + + // TODO: reject mmap if already mapped + + if (mutex_lock_interruptible(&vcs->mutex)) + return -EINTR; + + if (vcs->reading) { + ret = -EBUSY; + goto out; + } + + // TODO: check queue type + + if (!(vma->vm_flags & VM_WRITE)) { + dprintk("mmap(): app bug: PROT_WRITE please\n"); + ret = -EINVAL; + goto out; + } + if (!(vma->vm_flags & VM_SHARED)) { + dprintk("mmap(): app bug: MAP_SHARED please\n"); + ret = -EINVAL; + goto out; + } + + /* find the correct buffer using offset */ + length = vino_queue_get_length(&vcs->fb_queue); + if (length == 0) { + dprintk("mmap(): queue not initialized\n"); + ret = -EINVAL; + goto out; + } + + for (i = 0; i < length; i++) { + fb = vino_queue_get_buffer(&vcs->fb_queue, i); + if (fb == NULL) { + dprintk("mmap(): vino_queue_get_buffer() failed\n"); + ret = -EINVAL; + goto out; + } + + if (fb->offset == offset) + goto found; + } + + dprintk("mmap(): invalid offset = %lu\n", offset); + ret = -EINVAL; + goto out; + +found: + dprintk("mmap(): buffer = %d\n", i); + + if (size > (fb->desc_table.page_count * PAGE_SIZE)) { + dprintk("mmap(): failed: size = %lu > %lu\n", + size, fb->desc_table.page_count * PAGE_SIZE); + ret = -EINVAL; + goto out; + } + + for (i = 0; i < fb->desc_table.page_count; i++) { + unsigned long pfn = + virt_to_phys((void *)fb->desc_table.virtual[i]) >> + PAGE_SHIFT; + + if (size < PAGE_SIZE) + break; + + // protection was: PAGE_READONLY + if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, + vma->vm_page_prot)) { + dprintk("mmap(): remap_pfn_range() failed\n"); + ret = -EAGAIN; + goto out; + } + + start += PAGE_SIZE; + size -= PAGE_SIZE; + } + + fb->map_count = 1; + + vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + vma->vm_flags &= ~VM_IO; + vma->vm_private_data = fb; + vma->vm_file = file; + vma->vm_ops = &vino_vm_ops; + +out: + mutex_unlock(&vcs->mutex); + + return ret; +} + +static unsigned int vino_poll(struct file *file, poll_table *pt) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + unsigned int outgoing; + unsigned int ret = 0; + + // lock mutex (?) + // TODO: this has to be corrected for different read modes + + dprintk("poll():\n"); + + if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { + dprintk("poll(): vino_queue_get_outgoing() failed\n"); + ret = POLLERR; + goto error; + } + if (outgoing > 0) + goto over; + + poll_wait(file, &vcs->fb_queue.frame_wait_queue, pt); + + if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { + dprintk("poll(): vino_queue_get_outgoing() failed\n"); + ret = POLLERR; + goto error; + } + +over: + dprintk("poll(): data %savailable\n", + (outgoing > 0) ? "" : "not "); + + if (outgoing > 0) + ret = POLLIN | POLLRDNORM; + +error: + return ret; +} + +static long vino_ioctl(struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct vino_channel_settings *vcs = video_drvdata(file); + long ret; + + if (mutex_lock_interruptible(&vcs->mutex)) + return -EINTR; + + ret = video_ioctl2(file, cmd, arg); + + mutex_unlock(&vcs->mutex); + + return ret; +} + +/* Initialization and cleanup */ + +/* __initdata */ +static int vino_init_stage; + +const struct v4l2_ioctl_ops vino_ioctl_ops = { + .vidioc_enum_fmt_vid_cap = vino_enum_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = vino_g_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = vino_s_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = vino_try_fmt_vid_cap, + .vidioc_querycap = vino_querycap, + .vidioc_enum_input = vino_enum_input, + .vidioc_g_input = vino_g_input, + .vidioc_s_input = vino_s_input, + .vidioc_g_std = vino_g_std, + .vidioc_s_std = vino_s_std, + .vidioc_querystd = vino_querystd, + .vidioc_cropcap = vino_cropcap, + .vidioc_s_crop = vino_s_crop, + .vidioc_g_crop = vino_g_crop, + .vidioc_s_parm = vino_s_parm, + .vidioc_g_parm = vino_g_parm, + .vidioc_reqbufs = vino_reqbufs, + .vidioc_querybuf = vino_querybuf, + .vidioc_qbuf = vino_qbuf, + .vidioc_dqbuf = vino_dqbuf, + .vidioc_streamon = vino_streamon, + .vidioc_streamoff = vino_streamoff, + .vidioc_queryctrl = vino_queryctrl, + .vidioc_g_ctrl = vino_g_ctrl, + .vidioc_s_ctrl = vino_s_ctrl, +}; + +static const struct v4l2_file_operations vino_fops = { + .owner = THIS_MODULE, + .open = vino_open, + .release = vino_close, + .unlocked_ioctl = vino_ioctl, + .mmap = vino_mmap, + .poll = vino_poll, +}; + +static struct video_device vdev_template = { + .name = "NOT SET", + .fops = &vino_fops, + .ioctl_ops = &vino_ioctl_ops, + .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM, +}; + +static void vino_module_cleanup(int stage) +{ + switch(stage) { + case 11: + video_unregister_device(vino_drvdata->b.vdev); + vino_drvdata->b.vdev = NULL; + case 10: + video_unregister_device(vino_drvdata->a.vdev); + vino_drvdata->a.vdev = NULL; + case 9: + i2c_del_adapter(&vino_i2c_adapter); + case 8: + free_irq(SGI_VINO_IRQ, NULL); + case 7: + if (vino_drvdata->b.vdev) { + video_device_release(vino_drvdata->b.vdev); + vino_drvdata->b.vdev = NULL; + } + case 6: + if (vino_drvdata->a.vdev) { + video_device_release(vino_drvdata->a.vdev); + vino_drvdata->a.vdev = NULL; + } + case 5: + /* all entries in dma_cpu dummy table have the same address */ + dma_unmap_single(NULL, + vino_drvdata->dummy_desc_table.dma_cpu[0], + PAGE_SIZE, DMA_FROM_DEVICE); + dma_free_coherent(NULL, VINO_DUMMY_DESC_COUNT + * sizeof(dma_addr_t), + (void *)vino_drvdata-> + dummy_desc_table.dma_cpu, + vino_drvdata->dummy_desc_table.dma); + case 4: + free_page(vino_drvdata->dummy_page); + case 3: + v4l2_device_unregister(&vino_drvdata->v4l2_dev); + case 2: + kfree(vino_drvdata); + case 1: + iounmap(vino); + case 0: + break; + default: + dprintk("vino_module_cleanup(): invalid cleanup stage = %d\n", + stage); + } +} + +static int vino_probe(void) +{ + unsigned long rev_id; + + if (ip22_is_fullhouse()) { + printk(KERN_ERR "VINO doesn't exist in IP22 Fullhouse\n"); + return -ENODEV; + } + + if (!(sgimc->systemid & SGIMC_SYSID_EPRESENT)) { + printk(KERN_ERR "VINO is not found (EISA BUS not present)\n"); + return -ENODEV; + } + + vino = (struct sgi_vino *)ioremap(VINO_BASE, sizeof(struct sgi_vino)); + if (!vino) { + printk(KERN_ERR "VINO: ioremap() failed\n"); + return -EIO; + } + vino_init_stage++; + + if (get_dbe(rev_id, &(vino->rev_id))) { + printk(KERN_ERR "Failed to read VINO revision register\n"); + vino_module_cleanup(vino_init_stage); + return -ENODEV; + } + + if (VINO_ID_VALUE(rev_id) != VINO_CHIP_ID) { + printk(KERN_ERR "Unknown VINO chip ID (Rev/ID: 0x%02lx)\n", + rev_id); + vino_module_cleanup(vino_init_stage); + return -ENODEV; + } + + printk(KERN_INFO "VINO revision %ld found\n", VINO_REV_NUM(rev_id)); + + return 0; +} + +static int vino_init(void) +{ + dma_addr_t dma_dummy_address; + int err; + int i; + + vino_drvdata = kzalloc(sizeof(struct vino_settings), GFP_KERNEL); + if (!vino_drvdata) { + vino_module_cleanup(vino_init_stage); + return -ENOMEM; + } + vino_init_stage++; + strlcpy(vino_drvdata->v4l2_dev.name, "vino", + sizeof(vino_drvdata->v4l2_dev.name)); + err = v4l2_device_register(NULL, &vino_drvdata->v4l2_dev); + if (err) + return err; + vino_init_stage++; + + /* create a dummy dma descriptor */ + vino_drvdata->dummy_page = get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!vino_drvdata->dummy_page) { + vino_module_cleanup(vino_init_stage); + return -ENOMEM; + } + vino_init_stage++; + + // TODO: use page_count in dummy_desc_table + + vino_drvdata->dummy_desc_table.dma_cpu = + dma_alloc_coherent(NULL, + VINO_DUMMY_DESC_COUNT * sizeof(dma_addr_t), + &vino_drvdata->dummy_desc_table.dma, + GFP_KERNEL | GFP_DMA); + if (!vino_drvdata->dummy_desc_table.dma_cpu) { + vino_module_cleanup(vino_init_stage); + return -ENOMEM; + } + vino_init_stage++; + + dma_dummy_address = dma_map_single(NULL, + (void *)vino_drvdata->dummy_page, + PAGE_SIZE, DMA_FROM_DEVICE); + for (i = 0; i < VINO_DUMMY_DESC_COUNT; i++) { + vino_drvdata->dummy_desc_table.dma_cpu[i] = dma_dummy_address; + } + + /* initialize VINO */ + + vino->control = 0; + vino->a.next_4_desc = vino_drvdata->dummy_desc_table.dma; + vino->b.next_4_desc = vino_drvdata->dummy_desc_table.dma; + udelay(VINO_DESC_FETCH_DELAY); + + vino->intr_status = 0; + + vino->a.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; + vino->b.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; + + return 0; +} + +static int vino_init_channel_settings(struct vino_channel_settings *vcs, + unsigned int channel, const char *name) +{ + vcs->channel = channel; + vcs->input = VINO_INPUT_NONE; + vcs->alpha = 0; + vcs->users = 0; + vcs->data_format = VINO_DATA_FMT_GREY; + vcs->data_norm = VINO_DATA_NORM_NTSC; + vcs->decimation = 1; + vino_set_default_clipping(vcs); + vino_set_default_framerate(vcs); + + vcs->capturing = 0; + + mutex_init(&vcs->mutex); + spin_lock_init(&vcs->capture_lock); + + mutex_init(&vcs->fb_queue.queue_mutex); + spin_lock_init(&vcs->fb_queue.queue_lock); + init_waitqueue_head(&vcs->fb_queue.frame_wait_queue); + + vcs->vdev = video_device_alloc(); + if (!vcs->vdev) { + vino_module_cleanup(vino_init_stage); + return -ENOMEM; + } + vino_init_stage++; + + memcpy(vcs->vdev, &vdev_template, + sizeof(struct video_device)); + strcpy(vcs->vdev->name, name); + vcs->vdev->release = video_device_release; + vcs->vdev->v4l2_dev = &vino_drvdata->v4l2_dev; + + video_set_drvdata(vcs->vdev, vcs); + + return 0; +} + +static int __init vino_module_init(void) +{ + int ret; + + printk(KERN_INFO "SGI VINO driver version %s\n", + VINO_MODULE_VERSION); + + ret = vino_probe(); + if (ret) + return ret; + + ret = vino_init(); + if (ret) + return ret; + + /* initialize data structures */ + + spin_lock_init(&vino_drvdata->vino_lock); + spin_lock_init(&vino_drvdata->input_lock); + + ret = vino_init_channel_settings(&vino_drvdata->a, VINO_CHANNEL_A, + vino_vdev_name_a); + if (ret) + return ret; + + ret = vino_init_channel_settings(&vino_drvdata->b, VINO_CHANNEL_B, + vino_vdev_name_b); + if (ret) + return ret; + + /* initialize hardware and register V4L devices */ + + ret = request_irq(SGI_VINO_IRQ, vino_interrupt, 0, + vino_driver_description, NULL); + if (ret) { + printk(KERN_ERR "VINO: requesting IRQ %02d failed\n", + SGI_VINO_IRQ); + vino_module_cleanup(vino_init_stage); + return -EAGAIN; + } + vino_init_stage++; + + ret = i2c_add_adapter(&vino_i2c_adapter); + if (ret) { + printk(KERN_ERR "VINO I2C bus registration failed\n"); + vino_module_cleanup(vino_init_stage); + return ret; + } + i2c_set_adapdata(&vino_i2c_adapter, &vino_drvdata->v4l2_dev); + vino_init_stage++; + + ret = video_register_device(vino_drvdata->a.vdev, + VFL_TYPE_GRABBER, -1); + if (ret < 0) { + printk(KERN_ERR "VINO channel A Video4Linux-device " + "registration failed\n"); + vino_module_cleanup(vino_init_stage); + return -EINVAL; + } + vino_init_stage++; + + ret = video_register_device(vino_drvdata->b.vdev, + VFL_TYPE_GRABBER, -1); + if (ret < 0) { + printk(KERN_ERR "VINO channel B Video4Linux-device " + "registration failed\n"); + vino_module_cleanup(vino_init_stage); + return -EINVAL; + } + vino_init_stage++; + + vino_drvdata->decoder = + v4l2_i2c_new_subdev(&vino_drvdata->v4l2_dev, &vino_i2c_adapter, + "saa7191", 0, I2C_ADDRS(0x45)); + vino_drvdata->camera = + v4l2_i2c_new_subdev(&vino_drvdata->v4l2_dev, &vino_i2c_adapter, + "indycam", 0, I2C_ADDRS(0x2b)); + + dprintk("init complete!\n"); + + return 0; +} + +static void __exit vino_module_exit(void) +{ + dprintk("exiting, stage = %d ...\n", vino_init_stage); + vino_module_cleanup(vino_init_stage); + dprintk("cleanup complete, exit!\n"); +} + +module_init(vino_module_init); +module_exit(vino_module_exit); diff --git a/drivers/staging/media/vino/vino.h b/drivers/staging/media/vino/vino.h new file mode 100644 index 000000000000..de2d615ae7c9 --- /dev/null +++ b/drivers/staging/media/vino/vino.h @@ -0,0 +1,138 @@ +/* + * Driver for the VINO (Video In No Out) system found in SGI Indys. + * + * This file is subject to the terms and conditions of the GNU General Public + * License version 2 as published by the Free Software Foundation. + * + * Copyright (C) 1999 Ulf Karlsson <ulfc@bun.falkenberg.se> + * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org> + */ + +#ifndef _VINO_H_ +#define _VINO_H_ + +#define VINO_BASE 0x00080000 /* Vino is in the EISA address space, + * but it is not an EISA bus card */ +#define VINO_PAGE_SIZE 4096 + +struct sgi_vino_channel { + u32 _pad_alpha; + volatile u32 alpha; + +#define VINO_CLIP_X(x) ((x) & 0x3ff) /* bits 0:9 */ +#define VINO_CLIP_ODD(x) (((x) & 0x1ff) << 10) /* bits 10:18 */ +#define VINO_CLIP_EVEN(x) (((x) & 0x1ff) << 19) /* bits 19:27 */ + u32 _pad_clip_start; + volatile u32 clip_start; + u32 _pad_clip_end; + volatile u32 clip_end; + +#define VINO_FRAMERT_FULL 0xfff +#define VINO_FRAMERT_PAL (1<<0) /* 0=NTSC 1=PAL */ +#define VINO_FRAMERT_RT(x) (((x) & 0xfff) << 1) /* bits 1:12 */ + u32 _pad_frame_rate; + volatile u32 frame_rate; + + u32 _pad_field_counter; + volatile u32 field_counter; + u32 _pad_line_size; + volatile u32 line_size; + u32 _pad_line_count; + volatile u32 line_count; + u32 _pad_page_index; + volatile u32 page_index; + u32 _pad_next_4_desc; + volatile u32 next_4_desc; + u32 _pad_start_desc_tbl; + volatile u32 start_desc_tbl; + +#define VINO_DESC_JUMP (1<<30) +#define VINO_DESC_STOP (1<<31) +#define VINO_DESC_VALID (1<<32) + u32 _pad_desc_0; + volatile u32 desc_0; + u32 _pad_desc_1; + volatile u32 desc_1; + u32 _pad_desc_2; + volatile u32 desc_2; + u32 _pad_Bdesc_3; + volatile u32 desc_3; + + u32 _pad_fifo_thres; + volatile u32 fifo_thres; + u32 _pad_fifo_read; + volatile u32 fifo_read; + u32 _pad_fifo_write; + volatile u32 fifo_write; +}; + +struct sgi_vino { +#define VINO_CHIP_ID 0xb +#define VINO_REV_NUM(x) ((x) & 0x0f) +#define VINO_ID_VALUE(x) (((x) & 0xf0) >> 4) + u32 _pad_rev_id; + volatile u32 rev_id; + +#define VINO_CTRL_LITTLE_ENDIAN (1<<0) +#define VINO_CTRL_A_EOF_INT (1<<1) /* Field transferred int */ +#define VINO_CTRL_A_FIFO_INT (1<<2) /* FIFO overflow int */ +#define VINO_CTRL_A_EOD_INT (1<<3) /* End of desc table int */ +#define VINO_CTRL_A_INT (VINO_CTRL_A_EOF_INT | \ + VINO_CTRL_A_FIFO_INT | \ + VINO_CTRL_A_EOD_INT) +#define VINO_CTRL_B_EOF_INT (1<<4) /* Field transferred int */ +#define VINO_CTRL_B_FIFO_INT (1<<5) /* FIFO overflow int */ +#define VINO_CTRL_B_EOD_INT (1<<6) /* End of desc table int */ +#define VINO_CTRL_B_INT (VINO_CTRL_B_EOF_INT | \ + VINO_CTRL_B_FIFO_INT | \ + VINO_CTRL_B_EOD_INT) +#define VINO_CTRL_A_DMA_ENBL (1<<7) +#define VINO_CTRL_A_INTERLEAVE_ENBL (1<<8) +#define VINO_CTRL_A_SYNC_ENBL (1<<9) +#define VINO_CTRL_A_SELECT (1<<10) /* 1=D1 0=Philips */ +#define VINO_CTRL_A_RGB (1<<11) /* 1=RGB 0=YUV */ +#define VINO_CTRL_A_LUMA_ONLY (1<<12) +#define VINO_CTRL_A_DEC_ENBL (1<<13) /* Decimation */ +#define VINO_CTRL_A_DEC_SCALE_MASK 0x1c000 /* bits 14:17 */ +#define VINO_CTRL_A_DEC_SCALE_SHIFT (14) +#define VINO_CTRL_A_DEC_HOR_ONLY (1<<17) /* Horizontal only */ +#define VINO_CTRL_A_DITHER (1<<18) /* 24 -> 8 bit dither */ +#define VINO_CTRL_B_DMA_ENBL (1<<19) +#define VINO_CTRL_B_INTERLEAVE_ENBL (1<<20) +#define VINO_CTRL_B_SYNC_ENBL (1<<21) +#define VINO_CTRL_B_SELECT (1<<22) /* 1=D1 0=Philips */ +#define VINO_CTRL_B_RGB (1<<23) /* 1=RGB 0=YUV */ +#define VINO_CTRL_B_LUMA_ONLY (1<<24) +#define VINO_CTRL_B_DEC_ENBL (1<<25) /* Decimation */ +#define VINO_CTRL_B_DEC_SCALE_MASK 0x1c000000 /* bits 26:28 */ +#define VINO_CTRL_B_DEC_SCALE_SHIFT (26) +#define VINO_CTRL_B_DEC_HOR_ONLY (1<<29) /* Decimation horizontal only */ +#define VINO_CTRL_B_DITHER (1<<30) /* ChanB 24 -> 8 bit dither */ + u32 _pad_control; + volatile u32 control; + +#define VINO_INTSTAT_A_EOF (1<<0) /* Field transferred int */ +#define VINO_INTSTAT_A_FIFO (1<<1) /* FIFO overflow int */ +#define VINO_INTSTAT_A_EOD (1<<2) /* End of desc table int */ +#define VINO_INTSTAT_A (VINO_INTSTAT_A_EOF | \ + VINO_INTSTAT_A_FIFO | \ + VINO_INTSTAT_A_EOD) +#define VINO_INTSTAT_B_EOF (1<<3) /* Field transferred int */ +#define VINO_INTSTAT_B_FIFO (1<<4) /* FIFO overflow int */ +#define VINO_INTSTAT_B_EOD (1<<5) /* End of desc table int */ +#define VINO_INTSTAT_B (VINO_INTSTAT_B_EOF | \ + VINO_INTSTAT_B_FIFO | \ + VINO_INTSTAT_B_EOD) + u32 _pad_intr_status; + volatile u32 intr_status; + + u32 _pad_i2c_control; + volatile u32 i2c_control; + u32 _pad_i2c_data; + volatile u32 i2c_data; + + struct sgi_vino_channel a; + struct sgi_vino_channel b; +}; + +#endif |