diff options
Diffstat (limited to 'drivers/media/video/saa7127.c')
| -rw-r--r-- | drivers/media/video/saa7127.c | 855 |
1 files changed, 0 insertions, 855 deletions
diff --git a/drivers/media/video/saa7127.c b/drivers/media/video/saa7127.c deleted file mode 100644 index 39c90b08eea8..000000000000 --- a/drivers/media/video/saa7127.c +++ /dev/null @@ -1,855 +0,0 @@ -/* - * saa7127 - Philips SAA7127/SAA7129 video encoder driver - * - * Copyright (C) 2003 Roy Bulter <rbulter@hetnet.nl> - * - * Based on SAA7126 video encoder driver by Gillem & Andreas Oberritter - * - * Copyright (C) 2000-2001 Gillem <htoa@gmx.net> - * Copyright (C) 2002 Andreas Oberritter <obi@saftware.de> - * - * Based on Stadis 4:2:2 MPEG-2 Decoder Driver by Nathan Laredo - * - * Copyright (C) 1999 Nathan Laredo <laredo@gnu.org> - * - * This driver is designed for the Hauppauge 250/350 Linux driver - * from the ivtv Project - * - * Copyright (C) 2003 Kevin Thayer <nufan_wfk@yahoo.com> - * - * Dual output support: - * Copyright (C) 2004 Eric Varsanyi - * - * NTSC Tuning and 7.5 IRE Setup - * Copyright (C) 2004 Chris Kennedy <c@groovy.org> - * - * VBI additions & cleanup: - * Copyright (C) 2004, 2005 Hans Verkuil <hverkuil@xs4all.nl> - * - * Note: the saa7126 is identical to the saa7127, and the saa7128 is - * identical to the saa7129, except that the saa7126 and saa7128 have - * macrovision anti-taping support. This driver will almost certainly - * work fine for those chips, except of course for the missing anti-taping - * support. - * - * 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/module.h> -#include <linux/slab.h> -#include <linux/i2c.h> -#include <linux/videodev2.h> -#include <media/v4l2-device.h> -#include <media/v4l2-chip-ident.h> -#include <media/saa7127.h> - -static int debug; -static int test_image; - -MODULE_DESCRIPTION("Philips SAA7127/9 video encoder driver"); -MODULE_AUTHOR("Kevin Thayer, Chris Kennedy, Hans Verkuil"); -MODULE_LICENSE("GPL"); -module_param(debug, int, 0644); -module_param(test_image, int, 0644); -MODULE_PARM_DESC(debug, "debug level (0-2)"); -MODULE_PARM_DESC(test_image, "test_image (0-1)"); - - -/* - * SAA7127 registers - */ - -#define SAA7127_REG_STATUS 0x00 -#define SAA7127_REG_WIDESCREEN_CONFIG 0x26 -#define SAA7127_REG_WIDESCREEN_ENABLE 0x27 -#define SAA7127_REG_BURST_START 0x28 -#define SAA7127_REG_BURST_END 0x29 -#define SAA7127_REG_COPYGEN_0 0x2a -#define SAA7127_REG_COPYGEN_1 0x2b -#define SAA7127_REG_COPYGEN_2 0x2c -#define SAA7127_REG_OUTPUT_PORT_CONTROL 0x2d -#define SAA7127_REG_GAIN_LUMINANCE_RGB 0x38 -#define SAA7127_REG_GAIN_COLORDIFF_RGB 0x39 -#define SAA7127_REG_INPUT_PORT_CONTROL_1 0x3a -#define SAA7129_REG_FADE_KEY_COL2 0x4f -#define SAA7127_REG_CHROMA_PHASE 0x5a -#define SAA7127_REG_GAINU 0x5b -#define SAA7127_REG_GAINV 0x5c -#define SAA7127_REG_BLACK_LEVEL 0x5d -#define SAA7127_REG_BLANKING_LEVEL 0x5e -#define SAA7127_REG_VBI_BLANKING 0x5f -#define SAA7127_REG_DAC_CONTROL 0x61 -#define SAA7127_REG_BURST_AMP 0x62 -#define SAA7127_REG_SUBC3 0x63 -#define SAA7127_REG_SUBC2 0x64 -#define SAA7127_REG_SUBC1 0x65 -#define SAA7127_REG_SUBC0 0x66 -#define SAA7127_REG_LINE_21_ODD_0 0x67 -#define SAA7127_REG_LINE_21_ODD_1 0x68 -#define SAA7127_REG_LINE_21_EVEN_0 0x69 -#define SAA7127_REG_LINE_21_EVEN_1 0x6a -#define SAA7127_REG_RCV_PORT_CONTROL 0x6b -#define SAA7127_REG_VTRIG 0x6c -#define SAA7127_REG_HTRIG_HI 0x6d -#define SAA7127_REG_MULTI 0x6e -#define SAA7127_REG_CLOSED_CAPTION 0x6f -#define SAA7127_REG_RCV2_OUTPUT_START 0x70 -#define SAA7127_REG_RCV2_OUTPUT_END 0x71 -#define SAA7127_REG_RCV2_OUTPUT_MSBS 0x72 -#define SAA7127_REG_TTX_REQUEST_H_START 0x73 -#define SAA7127_REG_TTX_REQUEST_H_DELAY_LENGTH 0x74 -#define SAA7127_REG_CSYNC_ADVANCE_VSYNC_SHIFT 0x75 -#define SAA7127_REG_TTX_ODD_REQ_VERT_START 0x76 -#define SAA7127_REG_TTX_ODD_REQ_VERT_END 0x77 -#define SAA7127_REG_TTX_EVEN_REQ_VERT_START 0x78 -#define SAA7127_REG_TTX_EVEN_REQ_VERT_END 0x79 -#define SAA7127_REG_FIRST_ACTIVE 0x7a -#define SAA7127_REG_LAST_ACTIVE 0x7b -#define SAA7127_REG_MSB_VERTICAL 0x7c -#define SAA7127_REG_DISABLE_TTX_LINE_LO_0 0x7e -#define SAA7127_REG_DISABLE_TTX_LINE_LO_1 0x7f - -/* - ********************************************************************** - * - * Arrays with configuration parameters for the SAA7127 - * - ********************************************************************** - */ - -struct i2c_reg_value { - unsigned char reg; - unsigned char value; -}; - -static const struct i2c_reg_value saa7129_init_config_extra[] = { - { SAA7127_REG_OUTPUT_PORT_CONTROL, 0x38 }, - { SAA7127_REG_VTRIG, 0xfa }, - { 0, 0 } -}; - -static const struct i2c_reg_value saa7127_init_config_common[] = { - { SAA7127_REG_WIDESCREEN_CONFIG, 0x0d }, - { SAA7127_REG_WIDESCREEN_ENABLE, 0x00 }, - { SAA7127_REG_COPYGEN_0, 0x77 }, - { SAA7127_REG_COPYGEN_1, 0x41 }, - { SAA7127_REG_COPYGEN_2, 0x00 }, /* Macrovision enable/disable */ - { SAA7127_REG_OUTPUT_PORT_CONTROL, 0xbf }, - { SAA7127_REG_GAIN_LUMINANCE_RGB, 0x00 }, - { SAA7127_REG_GAIN_COLORDIFF_RGB, 0x00 }, - { SAA7127_REG_INPUT_PORT_CONTROL_1, 0x80 }, /* for color bars */ - { SAA7127_REG_LINE_21_ODD_0, 0x77 }, - { SAA7127_REG_LINE_21_ODD_1, 0x41 }, - { SAA7127_REG_LINE_21_EVEN_0, 0x88 }, - { SAA7127_REG_LINE_21_EVEN_1, 0x41 }, - { SAA7127_REG_RCV_PORT_CONTROL, 0x12 }, - { SAA7127_REG_VTRIG, 0xf9 }, - { SAA7127_REG_HTRIG_HI, 0x00 }, - { SAA7127_REG_RCV2_OUTPUT_START, 0x41 }, - { SAA7127_REG_RCV2_OUTPUT_END, 0xc3 }, - { SAA7127_REG_RCV2_OUTPUT_MSBS, 0x00 }, - { SAA7127_REG_TTX_REQUEST_H_START, 0x3e }, - { SAA7127_REG_TTX_REQUEST_H_DELAY_LENGTH, 0xb8 }, - { SAA7127_REG_CSYNC_ADVANCE_VSYNC_SHIFT, 0x03 }, - { SAA7127_REG_TTX_ODD_REQ_VERT_START, 0x15 }, - { SAA7127_REG_TTX_ODD_REQ_VERT_END, 0x16 }, - { SAA7127_REG_TTX_EVEN_REQ_VERT_START, 0x15 }, - { SAA7127_REG_TTX_EVEN_REQ_VERT_END, 0x16 }, - { SAA7127_REG_FIRST_ACTIVE, 0x1a }, - { SAA7127_REG_LAST_ACTIVE, 0x01 }, - { SAA7127_REG_MSB_VERTICAL, 0xc0 }, - { SAA7127_REG_DISABLE_TTX_LINE_LO_0, 0x00 }, - { SAA7127_REG_DISABLE_TTX_LINE_LO_1, 0x00 }, - { 0, 0 } -}; - -#define SAA7127_60HZ_DAC_CONTROL 0x15 -static const struct i2c_reg_value saa7127_init_config_60hz[] = { - { SAA7127_REG_BURST_START, 0x19 }, - /* BURST_END is also used as a chip ID in saa7127_probe */ - { SAA7127_REG_BURST_END, 0x1d }, - { SAA7127_REG_CHROMA_PHASE, 0xa3 }, - { SAA7127_REG_GAINU, 0x98 }, - { SAA7127_REG_GAINV, 0xd3 }, - { SAA7127_REG_BLACK_LEVEL, 0x39 }, - { SAA7127_REG_BLANKING_LEVEL, 0x2e }, - { SAA7127_REG_VBI_BLANKING, 0x2e }, - { SAA7127_REG_DAC_CONTROL, 0x15 }, - { SAA7127_REG_BURST_AMP, 0x4d }, - { SAA7127_REG_SUBC3, 0x1f }, - { SAA7127_REG_SUBC2, 0x7c }, - { SAA7127_REG_SUBC1, 0xf0 }, - { SAA7127_REG_SUBC0, 0x21 }, - { SAA7127_REG_MULTI, 0x90 }, - { SAA7127_REG_CLOSED_CAPTION, 0x11 }, - { 0, 0 } -}; - -#define SAA7127_50HZ_PAL_DAC_CONTROL 0x02 -static struct i2c_reg_value saa7127_init_config_50hz_pal[] = { - { SAA7127_REG_BURST_START, 0x21 }, - /* BURST_END is also used as a chip ID in saa7127_probe */ - { SAA7127_REG_BURST_END, 0x1d }, - { SAA7127_REG_CHROMA_PHASE, 0x3f }, - { SAA7127_REG_GAINU, 0x7d }, - { SAA7127_REG_GAINV, 0xaf }, - { SAA7127_REG_BLACK_LEVEL, 0x33 }, - { SAA7127_REG_BLANKING_LEVEL, 0x35 }, - { SAA7127_REG_VBI_BLANKING, 0x35 }, - { SAA7127_REG_DAC_CONTROL, 0x02 }, - { SAA7127_REG_BURST_AMP, 0x2f }, - { SAA7127_REG_SUBC3, 0xcb }, - { SAA7127_REG_SUBC2, 0x8a }, - { SAA7127_REG_SUBC1, 0x09 }, - { SAA7127_REG_SUBC0, 0x2a }, - { SAA7127_REG_MULTI, 0xa0 }, - { SAA7127_REG_CLOSED_CAPTION, 0x00 }, - { 0, 0 } -}; - -#define SAA7127_50HZ_SECAM_DAC_CONTROL 0x08 -static struct i2c_reg_value saa7127_init_config_50hz_secam[] = { - { SAA7127_REG_BURST_START, 0x21 }, - /* BURST_END is also used as a chip ID in saa7127_probe */ - { SAA7127_REG_BURST_END, 0x1d }, - { SAA7127_REG_CHROMA_PHASE, 0x3f }, - { SAA7127_REG_GAINU, 0x6a }, - { SAA7127_REG_GAINV, 0x81 }, - { SAA7127_REG_BLACK_LEVEL, 0x33 }, - { SAA7127_REG_BLANKING_LEVEL, 0x35 }, - { SAA7127_REG_VBI_BLANKING, 0x35 }, - { SAA7127_REG_DAC_CONTROL, 0x08 }, - { SAA7127_REG_BURST_AMP, 0x2f }, - { SAA7127_REG_SUBC3, 0xb2 }, - { SAA7127_REG_SUBC2, 0x3b }, - { SAA7127_REG_SUBC1, 0xa3 }, - { SAA7127_REG_SUBC0, 0x28 }, - { SAA7127_REG_MULTI, 0x90 }, - { SAA7127_REG_CLOSED_CAPTION, 0x00 }, - { 0, 0 } -}; - -/* - ********************************************************************** - * - * Encoder Struct, holds the configuration state of the encoder - * - ********************************************************************** - */ - -struct saa7127_state { - struct v4l2_subdev sd; - v4l2_std_id std; - u32 ident; - enum saa7127_input_type input_type; - enum saa7127_output_type output_type; - int video_enable; - int wss_enable; - u16 wss_mode; - int cc_enable; - u16 cc_data; - int xds_enable; - u16 xds_data; - int vps_enable; - u8 vps_data[5]; - u8 reg_2d; - u8 reg_3a; - u8 reg_3a_cb; /* colorbar bit */ - u8 reg_61; -}; - -static inline struct saa7127_state *to_state(struct v4l2_subdev *sd) -{ - return container_of(sd, struct saa7127_state, sd); -} - -static const char * const output_strs[] = -{ - "S-Video + Composite", - "Composite", - "S-Video", - "RGB", - "YUV C", - "YUV V" -}; - -static const char * const wss_strs[] = { - "invalid", - "letterbox 14:9 center", - "letterbox 14:9 top", - "invalid", - "letterbox 16:9 top", - "invalid", - "invalid", - "16:9 full format anamorphic", - "4:3 full format", - "invalid", - "invalid", - "letterbox 16:9 center", - "invalid", - "letterbox >16:9 center", - "14:9 full format center", - "invalid", -}; - -/* ----------------------------------------------------------------------- */ - -static int saa7127_read(struct v4l2_subdev *sd, u8 reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return i2c_smbus_read_byte_data(client, reg); -} - -/* ----------------------------------------------------------------------- */ - -static int saa7127_write(struct v4l2_subdev *sd, u8 reg, u8 val) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - int i; - - for (i = 0; i < 3; i++) { - if (i2c_smbus_write_byte_data(client, reg, val) == 0) - return 0; - } - v4l2_err(sd, "I2C Write Problem\n"); - return -1; -} - -/* ----------------------------------------------------------------------- */ - -static int saa7127_write_inittab(struct v4l2_subdev *sd, - const struct i2c_reg_value *regs) -{ - while (regs->reg != 0) { - saa7127_write(sd, regs->reg, regs->value); - regs++; - } - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static int saa7127_set_vps(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data) -{ - struct saa7127_state *state = to_state(sd); - int enable = (data->line != 0); - - if (enable && (data->field != 0 || data->line != 16)) - return -EINVAL; - if (state->vps_enable != enable) { - v4l2_dbg(1, debug, sd, "Turn VPS Signal %s\n", enable ? "on" : "off"); - saa7127_write(sd, 0x54, enable << 7); - state->vps_enable = enable; - } - if (!enable) - return 0; - - state->vps_data[0] = data->data[2]; - state->vps_data[1] = data->data[8]; - state->vps_data[2] = data->data[9]; - state->vps_data[3] = data->data[10]; - state->vps_data[4] = data->data[11]; - v4l2_dbg(1, debug, sd, "Set VPS data %02x %02x %02x %02x %02x\n", - state->vps_data[0], state->vps_data[1], - state->vps_data[2], state->vps_data[3], - state->vps_data[4]); - saa7127_write(sd, 0x55, state->vps_data[0]); - saa7127_write(sd, 0x56, state->vps_data[1]); - saa7127_write(sd, 0x57, state->vps_data[2]); - saa7127_write(sd, 0x58, state->vps_data[3]); - saa7127_write(sd, 0x59, state->vps_data[4]); - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static int saa7127_set_cc(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data) -{ - struct saa7127_state *state = to_state(sd); - u16 cc = data->data[1] << 8 | data->data[0]; - int enable = (data->line != 0); - - if (enable && (data->field != 0 || data->line != 21)) - return -EINVAL; - if (state->cc_enable != enable) { - v4l2_dbg(1, debug, sd, - "Turn CC %s\n", enable ? "on" : "off"); - saa7127_write(sd, SAA7127_REG_CLOSED_CAPTION, - (state->xds_enable << 7) | (enable << 6) | 0x11); - state->cc_enable = enable; - } - if (!enable) - return 0; - - v4l2_dbg(2, debug, sd, "CC data: %04x\n", cc); - saa7127_write(sd, SAA7127_REG_LINE_21_ODD_0, cc & 0xff); - saa7127_write(sd, SAA7127_REG_LINE_21_ODD_1, cc >> 8); - state->cc_data = cc; - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static int saa7127_set_xds(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data) -{ - struct saa7127_state *state = to_state(sd); - u16 xds = data->data[1] << 8 | data->data[0]; - int enable = (data->line != 0); - - if (enable && (data->field != 1 || data->line != 21)) - return -EINVAL; - if (state->xds_enable != enable) { - v4l2_dbg(1, debug, sd, "Turn XDS %s\n", enable ? "on" : "off"); - saa7127_write(sd, SAA7127_REG_CLOSED_CAPTION, - (enable << 7) | (state->cc_enable << 6) | 0x11); - state->xds_enable = enable; - } - if (!enable) - return 0; - - v4l2_dbg(2, debug, sd, "XDS data: %04x\n", xds); - saa7127_write(sd, SAA7127_REG_LINE_21_EVEN_0, xds & 0xff); - saa7127_write(sd, SAA7127_REG_LINE_21_EVEN_1, xds >> 8); - state->xds_data = xds; - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static int saa7127_set_wss(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data) -{ - struct saa7127_state *state = to_state(sd); - int enable = (data->line != 0); - - if (enable && (data->field != 0 || data->line != 23)) - return -EINVAL; - if (state->wss_enable != enable) { - v4l2_dbg(1, debug, sd, "Turn WSS %s\n", enable ? "on" : "off"); - saa7127_write(sd, 0x27, enable << 7); - state->wss_enable = enable; - } - if (!enable) - return 0; - - saa7127_write(sd, 0x26, data->data[0]); - saa7127_write(sd, 0x27, 0x80 | (data->data[1] & 0x3f)); - v4l2_dbg(1, debug, sd, - "WSS mode: %s\n", wss_strs[data->data[0] & 0xf]); - state->wss_mode = (data->data[1] & 0x3f) << 8 | data->data[0]; - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static int saa7127_set_video_enable(struct v4l2_subdev *sd, int enable) -{ - struct saa7127_state *state = to_state(sd); - - if (enable) { - v4l2_dbg(1, debug, sd, "Enable Video Output\n"); - saa7127_write(sd, 0x2d, state->reg_2d); - saa7127_write(sd, 0x61, state->reg_61); - } else { - v4l2_dbg(1, debug, sd, "Disable Video Output\n"); - saa7127_write(sd, 0x2d, (state->reg_2d & 0xf0)); - saa7127_write(sd, 0x61, (state->reg_61 | 0xc0)); - } - state->video_enable = enable; - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static int saa7127_set_std(struct v4l2_subdev *sd, v4l2_std_id std) -{ - struct saa7127_state *state = to_state(sd); - const struct i2c_reg_value *inittab; - - if (std & V4L2_STD_525_60) { - v4l2_dbg(1, debug, sd, "Selecting 60 Hz video Standard\n"); - inittab = saa7127_init_config_60hz; - state->reg_61 = SAA7127_60HZ_DAC_CONTROL; - - } else if (state->ident == V4L2_IDENT_SAA7129 && - (std & V4L2_STD_SECAM) && - !(std & (V4L2_STD_625_50 & ~V4L2_STD_SECAM))) { - - /* If and only if SECAM, with a SAA712[89] */ - v4l2_dbg(1, debug, sd, - "Selecting 50 Hz SECAM video Standard\n"); - inittab = saa7127_init_config_50hz_secam; - state->reg_61 = SAA7127_50HZ_SECAM_DAC_CONTROL; - - } else { - v4l2_dbg(1, debug, sd, "Selecting 50 Hz PAL video Standard\n"); - inittab = saa7127_init_config_50hz_pal; - state->reg_61 = SAA7127_50HZ_PAL_DAC_CONTROL; - } - - /* Write Table */ - saa7127_write_inittab(sd, inittab); - state->std = std; - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static int saa7127_set_output_type(struct v4l2_subdev *sd, int output) -{ - struct saa7127_state *state = to_state(sd); - - switch (output) { - case SAA7127_OUTPUT_TYPE_RGB: - state->reg_2d = 0x0f; /* RGB + CVBS (for sync) */ - state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */ - break; - - case SAA7127_OUTPUT_TYPE_COMPOSITE: - if (state->ident == V4L2_IDENT_SAA7129) - state->reg_2d = 0x20; /* CVBS only */ - else - state->reg_2d = 0x08; /* 00001000 CVBS only, RGB DAC's off (high impedance mode) */ - state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */ - break; - - case SAA7127_OUTPUT_TYPE_SVIDEO: - if (state->ident == V4L2_IDENT_SAA7129) - state->reg_2d = 0x18; /* Y + C */ - else - state->reg_2d = 0xff; /*11111111 croma -> R, luma -> CVBS + G + B */ - state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */ - break; - - case SAA7127_OUTPUT_TYPE_YUV_V: - state->reg_2d = 0x4f; /* reg 2D = 01001111, all DAC's on, RGB + VBS */ - state->reg_3a = 0x0b; /* reg 3A = 00001011, bypass RGB-matrix */ - break; - - case SAA7127_OUTPUT_TYPE_YUV_C: - state->reg_2d = 0x0f; /* reg 2D = 00001111, all DAC's on, RGB + CVBS */ - state->reg_3a = 0x0b; /* reg 3A = 00001011, bypass RGB-matrix */ - break; - - case SAA7127_OUTPUT_TYPE_BOTH: - if (state->ident == V4L2_IDENT_SAA7129) - state->reg_2d = 0x38; - else - state->reg_2d = 0xbf; - state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */ - break; - - default: - return -EINVAL; - } - v4l2_dbg(1, debug, sd, - "Selecting %s output type\n", output_strs[output]); - - /* Configure Encoder */ - saa7127_write(sd, 0x2d, state->reg_2d); - saa7127_write(sd, 0x3a, state->reg_3a | state->reg_3a_cb); - state->output_type = output; - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static int saa7127_set_input_type(struct v4l2_subdev *sd, int input) -{ - struct saa7127_state *state = to_state(sd); - - switch (input) { - case SAA7127_INPUT_TYPE_NORMAL: /* avia */ - v4l2_dbg(1, debug, sd, "Selecting Normal Encoder Input\n"); - state->reg_3a_cb = 0; - break; - - case SAA7127_INPUT_TYPE_TEST_IMAGE: /* color bar */ - v4l2_dbg(1, debug, sd, "Selecting Color Bar generator\n"); - state->reg_3a_cb = 0x80; - break; - - default: - return -EINVAL; - } - saa7127_write(sd, 0x3a, state->reg_3a | state->reg_3a_cb); - state->input_type = input; - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static int saa7127_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std) -{ - struct saa7127_state *state = to_state(sd); - - if (state->std == std) - return 0; - return saa7127_set_std(sd, std); -} - -static int saa7127_s_routing(struct v4l2_subdev *sd, - u32 input, u32 output, u32 config) -{ - struct saa7127_state *state = to_state(sd); - int rc = 0; - - if (state->input_type != input) - rc = saa7127_set_input_type(sd, input); - if (rc == 0 && state->output_type != output) - rc = saa7127_set_output_type(sd, output); - return rc; -} - -static int saa7127_s_stream(struct v4l2_subdev *sd, int enable) -{ - struct saa7127_state *state = to_state(sd); - - if (state->video_enable == enable) - return 0; - return saa7127_set_video_enable(sd, enable); -} - -static int saa7127_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *fmt) -{ - struct saa7127_state *state = to_state(sd); - - memset(fmt, 0, sizeof(*fmt)); - if (state->vps_enable) - fmt->service_lines[0][16] = V4L2_SLICED_VPS; - if (state->wss_enable) - fmt->service_lines[0][23] = V4L2_SLICED_WSS_625; - if (state->cc_enable) { - fmt->service_lines[0][21] = V4L2_SLICED_CAPTION_525; - fmt->service_lines[1][21] = V4L2_SLICED_CAPTION_525; - } - fmt->service_set = - (state->vps_enable ? V4L2_SLICED_VPS : 0) | - (state->wss_enable ? V4L2_SLICED_WSS_625 : 0) | - (state->cc_enable ? V4L2_SLICED_CAPTION_525 : 0); - return 0; -} - -static int saa7127_s_vbi_data(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data) -{ - switch (data->id) { - case V4L2_SLICED_WSS_625: - return saa7127_set_wss(sd, data); - case V4L2_SLICED_VPS: - return saa7127_set_vps(sd, data); - case V4L2_SLICED_CAPTION_525: - if (data->field == 0) - return saa7127_set_cc(sd, data); - return saa7127_set_xds(sd, data); - default: - return -EINVAL; - } - return 0; -} - -#ifdef CONFIG_VIDEO_ADV_DEBUG -static int saa7127_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - if (!v4l2_chip_match_i2c_client(client, ®->match)) - return -EINVAL; - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - reg->val = saa7127_read(sd, reg->reg & 0xff); - reg->size = 1; - return 0; -} - -static int saa7127_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - - if (!v4l2_chip_match_i2c_client(client, ®->match)) - return -EINVAL; - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - saa7127_write(sd, reg->reg & 0xff, reg->val & 0xff); - return 0; -} -#endif - -static int saa7127_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) -{ - struct saa7127_state *state = to_state(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - - return v4l2_chip_ident_i2c_client(client, chip, state->ident, 0); -} - -static int saa7127_log_status(struct v4l2_subdev *sd) -{ - struct saa7127_state *state = to_state(sd); - - v4l2_info(sd, "Standard: %s\n", (state->std & V4L2_STD_525_60) ? "60 Hz" : "50 Hz"); - v4l2_info(sd, "Input: %s\n", state->input_type ? "color bars" : "normal"); - v4l2_info(sd, "Output: %s\n", state->video_enable ? - output_strs[state->output_type] : "disabled"); - v4l2_info(sd, "WSS: %s\n", state->wss_enable ? - wss_strs[state->wss_mode] : "disabled"); - v4l2_info(sd, "VPS: %s\n", state->vps_enable ? "enabled" : "disabled"); - v4l2_info(sd, "CC: %s\n", state->cc_enable ? "enabled" : "disabled"); - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static const struct v4l2_subdev_core_ops saa7127_core_ops = { - .log_status = saa7127_log_status, - .g_chip_ident = saa7127_g_chip_ident, -#ifdef CONFIG_VIDEO_ADV_DEBUG - .g_register = saa7127_g_register, - .s_register = saa7127_s_register, -#endif -}; - -static const struct v4l2_subdev_video_ops saa7127_video_ops = { - .s_std_output = saa7127_s_std_output, - .s_routing = saa7127_s_routing, - .s_stream = saa7127_s_stream, -}; - -static const struct v4l2_subdev_vbi_ops saa7127_vbi_ops = { - .s_vbi_data = saa7127_s_vbi_data, - .g_sliced_fmt = saa7127_g_sliced_fmt, -}; - -static const struct v4l2_subdev_ops saa7127_ops = { - .core = &saa7127_core_ops, - .video = &saa7127_video_ops, - .vbi = &saa7127_vbi_ops, -}; - -/* ----------------------------------------------------------------------- */ - -static int saa7127_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct saa7127_state *state; - struct v4l2_subdev *sd; - struct v4l2_sliced_vbi_data vbi = { 0, 0, 0, 0 }; /* set to disabled */ - - /* Check if the adapter supports the needed features */ - if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - return -EIO; - - v4l_dbg(1, debug, client, "detecting saa7127 client on address 0x%x\n", - client->addr << 1); - - state = kzalloc(sizeof(struct saa7127_state), GFP_KERNEL); - if (state == NULL) - return -ENOMEM; - - sd = &state->sd; - v4l2_i2c_subdev_init(sd, client, &saa7127_ops); - - /* First test register 0: Bits 5-7 are a version ID (should be 0), - and bit 2 should also be 0. - This is rather general, so the second test is more specific and - looks at the 'ending point of burst in clock cycles' which is - 0x1d after a reset and not expected to ever change. */ - if ((saa7127_read(sd, 0) & 0xe4) != 0 || - (saa7127_read(sd, 0x29) & 0x3f) != 0x1d) { - v4l2_dbg(1, debug, sd, "saa7127 not found\n"); - kfree(state); - return -ENODEV; - } - - if (id->driver_data) { /* Chip type is already known */ - state->ident = id->driver_data; - } else { /* Needs detection */ - int read_result; - - /* Detect if it's an saa7129 */ - read_result = saa7127_read(sd, SAA7129_REG_FADE_KEY_COL2); - saa7127_write(sd, SAA7129_REG_FADE_KEY_COL2, 0xaa); - if (saa7127_read(sd, SAA7129_REG_FADE_KEY_COL2) == 0xaa) { - saa7127_write(sd, SAA7129_REG_FADE_KEY_COL2, - read_result); - state->ident = V4L2_IDENT_SAA7129; - strlcpy(client->name, "saa7129", I2C_NAME_SIZE); - } else { - state->ident = V4L2_IDENT_SAA7127; - strlcpy(client->name, "saa7127", I2C_NAME_SIZE); - } - } - - v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name, - client->addr << 1, client->adapter->name); - - v4l2_dbg(1, debug, sd, "Configuring encoder\n"); - saa7127_write_inittab(sd, saa7127_init_config_common); - saa7127_set_std(sd, V4L2_STD_NTSC); - saa7127_set_output_type(sd, SAA7127_OUTPUT_TYPE_BOTH); - saa7127_set_vps(sd, &vbi); - saa7127_set_wss(sd, &vbi); - saa7127_set_cc(sd, &vbi); - saa7127_set_xds(sd, &vbi); - if (test_image == 1) - /* The Encoder has an internal Colorbar generator */ - /* This can be used for debugging */ - saa7127_set_input_type(sd, SAA7127_INPUT_TYPE_TEST_IMAGE); - else - saa7127_set_input_type(sd, SAA7127_INPUT_TYPE_NORMAL); - saa7127_set_video_enable(sd, 1); - - if (state->ident == V4L2_IDENT_SAA7129) - saa7127_write_inittab(sd, saa7129_init_config_extra); - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static int saa7127_remove(struct i2c_client *client) -{ - struct v4l2_subdev *sd = i2c_get_clientdata(client); - - v4l2_device_unregister_subdev(sd); - /* Turn off TV output */ - saa7127_set_video_enable(sd, 0); - kfree(to_state(sd)); - return 0; -} - -/* ----------------------------------------------------------------------- */ - -static struct i2c_device_id saa7127_id[] = { - { "saa7127_auto", 0 }, /* auto-detection */ - { "saa7126", V4L2_IDENT_SAA7127 }, - { "saa7127", V4L2_IDENT_SAA7127 }, - { "saa7128", V4L2_IDENT_SAA7129 }, - { "saa7129", V4L2_IDENT_SAA7129 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, saa7127_id); - -static struct i2c_driver saa7127_driver = { - .driver = { - .owner = THIS_MODULE, - .name = "saa7127", - }, - .probe = saa7127_probe, - .remove = saa7127_remove, - .id_table = saa7127_id, -}; - -module_i2c_driver(saa7127_driver); |