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Diffstat (limited to 'drivers/staging/media/zoran/zr36016.c')
-rw-r--r--drivers/staging/media/zoran/zr36016.c500
1 files changed, 0 insertions, 500 deletions
diff --git a/drivers/staging/media/zoran/zr36016.c b/drivers/staging/media/zoran/zr36016.c
deleted file mode 100644
index b300a0abe95f..000000000000
--- a/drivers/staging/media/zoran/zr36016.c
+++ /dev/null
@@ -1,500 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Zoran ZR36016 basic configuration functions
- *
- * Copyright (C) 2001 Wolfgang Scherr <scherr@net4you.at>
- */
-#define ZR016_VERSION "v0.7"
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-
-#include <linux/types.h>
-#include <linux/wait.h>
-
-/* I/O commands, error codes */
-#include <asm/io.h>
-
-/* v4l API */
-
-/* headerfile of this module */
-#include "zr36016.h"
-
-/* codec io API */
-#include "videocodec.h"
-
-/* it doesn't make sense to have more than 20 or so,
- just to prevent some unwanted loops */
-#define MAX_CODECS 20
-
-/* amount of chips attached via this driver */
-static int zr36016_codecs;
-
-/* debugging is available via module parameter */
-static int debug;
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug, "Debug level (0-4)");
-
-#define dprintk(num, format, args...) \
- do { \
- if (debug >= num) \
- printk(format, ##args); \
- } while (0)
-
-/* =========================================================================
- Local hardware I/O functions:
-
- read/write via codec layer (registers are located in the master device)
- ========================================================================= */
-
-/* read and write functions */
-static u8
-zr36016_read (struct zr36016 *ptr,
- u16 reg)
-{
- u8 value = 0;
-
- // just in case something is wrong...
- if (ptr->codec->master_data->readreg)
- value =
- (ptr->codec->master_data->
- readreg(ptr->codec, reg)) & 0xFF;
- else
- dprintk(1,
- KERN_ERR "%s: invalid I/O setup, nothing read!\n",
- ptr->name);
-
- dprintk(4, "%s: reading from 0x%04x: %02x\n", ptr->name, reg,
- value);
-
- return value;
-}
-
-static void
-zr36016_write (struct zr36016 *ptr,
- u16 reg,
- u8 value)
-{
- dprintk(4, "%s: writing 0x%02x to 0x%04x\n", ptr->name, value,
- reg);
-
- // just in case something is wrong...
- if (ptr->codec->master_data->writereg) {
- ptr->codec->master_data->writereg(ptr->codec, reg, value);
- } else
- dprintk(1,
- KERN_ERR
- "%s: invalid I/O setup, nothing written!\n",
- ptr->name);
-}
-
-/* indirect read and write functions */
-/* the 016 supports auto-addr-increment, but
- * writing it all time cost not much and is safer... */
-static u8
-zr36016_readi (struct zr36016 *ptr,
- u16 reg)
-{
- u8 value = 0;
-
- // just in case something is wrong...
- if ((ptr->codec->master_data->writereg) &&
- (ptr->codec->master_data->readreg)) {
- ptr->codec->master_data->writereg(ptr->codec, ZR016_IADDR, reg & 0x0F); // ADDR
- value = (ptr->codec->master_data->readreg(ptr->codec, ZR016_IDATA)) & 0xFF; // DATA
- } else
- dprintk(1,
- KERN_ERR
- "%s: invalid I/O setup, nothing read (i)!\n",
- ptr->name);
-
- dprintk(4, "%s: reading indirect from 0x%04x: %02x\n", ptr->name,
- reg, value);
- return value;
-}
-
-static void
-zr36016_writei (struct zr36016 *ptr,
- u16 reg,
- u8 value)
-{
- dprintk(4, "%s: writing indirect 0x%02x to 0x%04x\n", ptr->name,
- value, reg);
-
- // just in case something is wrong...
- if (ptr->codec->master_data->writereg) {
- ptr->codec->master_data->writereg(ptr->codec, ZR016_IADDR, reg & 0x0F); // ADDR
- ptr->codec->master_data->writereg(ptr->codec, ZR016_IDATA, value & 0x0FF); // DATA
- } else
- dprintk(1,
- KERN_ERR
- "%s: invalid I/O setup, nothing written (i)!\n",
- ptr->name);
-}
-
-/* =========================================================================
- Local helper function:
-
- version read
- ========================================================================= */
-
-/* version kept in datastructure */
-static u8
-zr36016_read_version (struct zr36016 *ptr)
-{
- ptr->version = zr36016_read(ptr, 0) >> 4;
- return ptr->version;
-}
-
-/* =========================================================================
- Local helper function:
-
- basic test of "connectivity", writes/reads to/from PAX-Lo register
- ========================================================================= */
-
-static int
-zr36016_basic_test (struct zr36016 *ptr)
-{
- if (debug) {
- int i;
- zr36016_writei(ptr, ZR016I_PAX_LO, 0x55);
- dprintk(1, KERN_INFO "%s: registers: ", ptr->name);
- for (i = 0; i <= 0x0b; i++)
- dprintk(1, "%02x ", zr36016_readi(ptr, i));
- dprintk(1, "\n");
- }
- // for testing just write 0, then the default value to a register and read
- // it back in both cases
- zr36016_writei(ptr, ZR016I_PAX_LO, 0x00);
- if (zr36016_readi(ptr, ZR016I_PAX_LO) != 0x0) {
- dprintk(1,
- KERN_ERR
- "%s: attach failed, can't connect to vfe processor!\n",
- ptr->name);
- return -ENXIO;
- }
- zr36016_writei(ptr, ZR016I_PAX_LO, 0x0d0);
- if (zr36016_readi(ptr, ZR016I_PAX_LO) != 0x0d0) {
- dprintk(1,
- KERN_ERR
- "%s: attach failed, can't connect to vfe processor!\n",
- ptr->name);
- return -ENXIO;
- }
- // we allow version numbers from 0-3, should be enough, though
- zr36016_read_version(ptr);
- if (ptr->version & 0x0c) {
- dprintk(1,
- KERN_ERR
- "%s: attach failed, suspicious version %d found...\n",
- ptr->name, ptr->version);
- return -ENXIO;
- }
-
- return 0; /* looks good! */
-}
-
-/* =========================================================================
- Local helper function:
-
- simple loop for pushing the init datasets - NO USE --
- ========================================================================= */
-
-#if 0
-static int zr36016_pushit (struct zr36016 *ptr,
- u16 startreg,
- u16 len,
- const char *data)
-{
- int i=0;
-
- dprintk(4, "%s: write data block to 0x%04x (len=%d)\n",
- ptr->name, startreg,len);
- while (i<len) {
- zr36016_writei(ptr, startreg++, data[i++]);
- }
-
- return i;
-}
-#endif
-
-/* =========================================================================
- Basic datasets & init:
-
- //TODO//
- ========================================================================= */
-
-static void
-zr36016_init (struct zr36016 *ptr)
-{
- // stop any processing
- zr36016_write(ptr, ZR016_GOSTOP, 0);
-
- // mode setup (yuv422 in and out, compression/expansuon due to mode)
- zr36016_write(ptr, ZR016_MODE,
- ZR016_YUV422 | ZR016_YUV422_YUV422 |
- (ptr->mode == CODEC_DO_COMPRESSION ?
- ZR016_COMPRESSION : ZR016_EXPANSION));
-
- // misc setup
- zr36016_writei(ptr, ZR016I_SETUP1,
- (ptr->xdec ? (ZR016_HRFL | ZR016_HORZ) : 0) |
- (ptr->ydec ? ZR016_VERT : 0) | ZR016_CNTI);
- zr36016_writei(ptr, ZR016I_SETUP2, ZR016_CCIR);
-
- // Window setup
- // (no extra offset for now, norm defines offset, default width height)
- zr36016_writei(ptr, ZR016I_PAX_HI, ptr->width >> 8);
- zr36016_writei(ptr, ZR016I_PAX_LO, ptr->width & 0xFF);
- zr36016_writei(ptr, ZR016I_PAY_HI, ptr->height >> 8);
- zr36016_writei(ptr, ZR016I_PAY_LO, ptr->height & 0xFF);
- zr36016_writei(ptr, ZR016I_NAX_HI, ptr->xoff >> 8);
- zr36016_writei(ptr, ZR016I_NAX_LO, ptr->xoff & 0xFF);
- zr36016_writei(ptr, ZR016I_NAY_HI, ptr->yoff >> 8);
- zr36016_writei(ptr, ZR016I_NAY_LO, ptr->yoff & 0xFF);
-
- /* shall we continue now, please? */
- zr36016_write(ptr, ZR016_GOSTOP, 1);
-}
-
-/* =========================================================================
- CODEC API FUNCTIONS
-
- this functions are accessed by the master via the API structure
- ========================================================================= */
-
-/* set compression/expansion mode and launches codec -
- this should be the last call from the master before starting processing */
-static int
-zr36016_set_mode (struct videocodec *codec,
- int mode)
-{
- struct zr36016 *ptr = (struct zr36016 *) codec->data;
-
- dprintk(2, "%s: set_mode %d call\n", ptr->name, mode);
-
- if ((mode != CODEC_DO_EXPANSION) && (mode != CODEC_DO_COMPRESSION))
- return -EINVAL;
-
- ptr->mode = mode;
- zr36016_init(ptr);
-
- return 0;
-}
-
-/* set picture size */
-static int
-zr36016_set_video (struct videocodec *codec,
- struct tvnorm *norm,
- struct vfe_settings *cap,
- struct vfe_polarity *pol)
-{
- struct zr36016 *ptr = (struct zr36016 *) codec->data;
-
- dprintk(2, "%s: set_video %d.%d, %d/%d-%dx%d (0x%x) call\n",
- ptr->name, norm->HStart, norm->VStart,
- cap->x, cap->y, cap->width, cap->height,
- cap->decimation);
-
- /* if () return -EINVAL;
- * trust the master driver that it knows what it does - so
- * we allow invalid startx/y for now ... */
- ptr->width = cap->width;
- ptr->height = cap->height;
- /* (Ronald) This is ugly. zoran_device.c, line 387
- * already mentions what happens if HStart is even
- * (blue faces, etc., cr/cb inversed). There's probably
- * some good reason why HStart is 0 instead of 1, so I'm
- * leaving it to this for now, but really... This can be
- * done a lot simpler */
- ptr->xoff = (norm->HStart ? norm->HStart : 1) + cap->x;
- /* Something to note here (I don't understand it), setting
- * VStart too high will cause the codec to 'not work'. I
- * really don't get it. values of 16 (VStart) already break
- * it here. Just '0' seems to work. More testing needed! */
- ptr->yoff = norm->VStart + cap->y;
- /* (Ronald) dzjeeh, can't this thing do hor_decimation = 4? */
- ptr->xdec = ((cap->decimation & 0xff) == 1) ? 0 : 1;
- ptr->ydec = (((cap->decimation >> 8) & 0xff) == 1) ? 0 : 1;
-
- return 0;
-}
-
-/* additional control functions */
-static int
-zr36016_control (struct videocodec *codec,
- int type,
- int size,
- void *data)
-{
- struct zr36016 *ptr = (struct zr36016 *) codec->data;
- int *ival = (int *) data;
-
- dprintk(2, "%s: control %d call with %d byte\n", ptr->name, type,
- size);
-
- switch (type) {
- case CODEC_G_STATUS: /* get last status - we don't know it ... */
- if (size != sizeof(int))
- return -EFAULT;
- *ival = 0;
- break;
-
- case CODEC_G_CODEC_MODE:
- if (size != sizeof(int))
- return -EFAULT;
- *ival = 0;
- break;
-
- case CODEC_S_CODEC_MODE:
- if (size != sizeof(int))
- return -EFAULT;
- if (*ival != 0)
- return -EINVAL;
- /* not needed, do nothing */
- return 0;
-
- case CODEC_G_VFE:
- case CODEC_S_VFE:
- return 0;
-
- case CODEC_S_MMAP:
- /* not available, give an error */
- return -ENXIO;
-
- default:
- return -EINVAL;
- }
-
- return size;
-}
-
-/* =========================================================================
- Exit and unregister function:
-
- Deinitializes Zoran's JPEG processor
- ========================================================================= */
-
-static int
-zr36016_unset (struct videocodec *codec)
-{
- struct zr36016 *ptr = codec->data;
-
- if (ptr) {
- /* do wee need some codec deinit here, too ???? */
-
- dprintk(1, "%s: finished codec #%d\n", ptr->name,
- ptr->num);
- kfree(ptr);
- codec->data = NULL;
-
- zr36016_codecs--;
- return 0;
- }
-
- return -EFAULT;
-}
-
-/* =========================================================================
- Setup and registry function:
-
- Initializes Zoran's JPEG processor
-
- Also sets pixel size, average code size, mode (compr./decompr.)
- (the given size is determined by the processor with the video interface)
- ========================================================================= */
-
-static int
-zr36016_setup (struct videocodec *codec)
-{
- struct zr36016 *ptr;
- int res;
-
- dprintk(2, "zr36016: initializing VFE subsystem #%d.\n",
- zr36016_codecs);
-
- if (zr36016_codecs == MAX_CODECS) {
- dprintk(1,
- KERN_ERR "zr36016: Can't attach more codecs!\n");
- return -ENOSPC;
- }
- //mem structure init
- codec->data = ptr = kzalloc(sizeof(struct zr36016), GFP_KERNEL);
- if (NULL == ptr) {
- dprintk(1, KERN_ERR "zr36016: Can't get enough memory!\n");
- return -ENOMEM;
- }
-
- snprintf(ptr->name, sizeof(ptr->name), "zr36016[%d]",
- zr36016_codecs);
- ptr->num = zr36016_codecs++;
- ptr->codec = codec;
-
- //testing
- res = zr36016_basic_test(ptr);
- if (res < 0) {
- zr36016_unset(codec);
- return res;
- }
- //final setup
- ptr->mode = CODEC_DO_COMPRESSION;
- ptr->width = 768;
- ptr->height = 288;
- ptr->xdec = 1;
- ptr->ydec = 0;
- zr36016_init(ptr);
-
- dprintk(1, KERN_INFO "%s: codec v%d attached and running\n",
- ptr->name, ptr->version);
-
- return 0;
-}
-
-static const struct videocodec zr36016_codec = {
- .owner = THIS_MODULE,
- .name = "zr36016",
- .magic = 0L, // magic not used
- .flags =
- CODEC_FLAG_HARDWARE | CODEC_FLAG_VFE | CODEC_FLAG_ENCODER |
- CODEC_FLAG_DECODER,
- .type = CODEC_TYPE_ZR36016,
- .setup = zr36016_setup, // functionality
- .unset = zr36016_unset,
- .set_mode = zr36016_set_mode,
- .set_video = zr36016_set_video,
- .control = zr36016_control,
- // others are not used
-};
-
-/* =========================================================================
- HOOK IN DRIVER AS KERNEL MODULE
- ========================================================================= */
-
-static int __init
-zr36016_init_module (void)
-{
- //dprintk(1, "ZR36016 driver %s\n",ZR016_VERSION);
- zr36016_codecs = 0;
- return videocodec_register(&zr36016_codec);
-}
-
-static void __exit
-zr36016_cleanup_module (void)
-{
- if (zr36016_codecs) {
- dprintk(1,
- "zr36016: something's wrong - %d codecs left somehow.\n",
- zr36016_codecs);
- }
- videocodec_unregister(&zr36016_codec);
-}
-
-module_init(zr36016_init_module);
-module_exit(zr36016_cleanup_module);
-
-MODULE_AUTHOR("Wolfgang Scherr <scherr@net4you.at>");
-MODULE_DESCRIPTION("Driver module for ZR36016 video frontends "
- ZR016_VERSION);
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-23 21:36:10 +0000