| /* |
| * 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 find 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-common.h> |
| |
| static int debug = 0; |
| static int test_image = 0; |
| |
| 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)"); |
| |
| static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END }; |
| |
| |
| I2C_CLIENT_INSMOD; |
| |
| /* |
| * 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 }, |
| }; |
| |
| 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, 0x9e }, |
| { 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_detect_client */ |
| { 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_DAC_CONTROL 0x02 |
| static struct i2c_reg_value saa7127_init_config_50hz[] = { |
| { SAA7127_REG_BURST_START, 0x21 }, |
| /* BURST_END is also used as a chip ID in saa7127_detect_client */ |
| { 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 } |
| }; |
| |
| /* Enumeration for the Supported input types */ |
| enum saa7127_input_type { |
| SAA7127_INPUT_TYPE_NORMAL, |
| SAA7127_INPUT_TYPE_TEST_IMAGE |
| }; |
| |
| /* Enumeration for the Supported Output signal types */ |
| enum saa7127_output_type { |
| SAA7127_OUTPUT_TYPE_BOTH, |
| SAA7127_OUTPUT_TYPE_COMPOSITE, |
| SAA7127_OUTPUT_TYPE_SVIDEO, |
| SAA7127_OUTPUT_TYPE_RGB, |
| SAA7127_OUTPUT_TYPE_YUV_C, |
| SAA7127_OUTPUT_TYPE_YUV_V |
| }; |
| |
| /* |
| ********************************************************************** |
| * |
| * Encoder Struct, holds the configuration state of the encoder |
| * |
| ********************************************************************** |
| */ |
| |
| struct saa7127_state { |
| v4l2_std_id std; |
| enum v4l2_chip_ident 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 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 i2c_client *client, u8 reg) |
| { |
| return i2c_smbus_read_byte_data(client, reg); |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int saa7127_write(struct i2c_client *client, u8 reg, u8 val) |
| { |
| int i; |
| |
| for (i = 0; i < 3; i++) { |
| if (i2c_smbus_write_byte_data(client, reg, val) == 0) |
| return 0; |
| } |
| v4l_err(client, "I2C Write Problem\n"); |
| return -1; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int saa7127_write_inittab(struct i2c_client *client, |
| const struct i2c_reg_value *regs) |
| { |
| while (regs->reg != 0) { |
| saa7127_write(client, regs->reg, regs->value); |
| regs++; |
| } |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int saa7127_set_vps(struct i2c_client *client, struct v4l2_sliced_vbi_data *data) |
| { |
| struct saa7127_state *state = i2c_get_clientdata(client); |
| int enable = (data->line != 0); |
| |
| if (enable && (data->field != 0 || data->line != 16)) |
| return -EINVAL; |
| if (state->vps_enable != enable) { |
| v4l_dbg(1, client, "Turn VPS Signal %s\n", enable ? "on" : "off"); |
| saa7127_write(client, 0x54, enable << 7); |
| state->vps_enable = enable; |
| } |
| if (!enable) |
| return 0; |
| |
| state->vps_data[0] = data->data[4]; |
| state->vps_data[1] = data->data[10]; |
| state->vps_data[2] = data->data[11]; |
| state->vps_data[3] = data->data[12]; |
| state->vps_data[4] = data->data[13]; |
| v4l_dbg(1, client, "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(client, 0x55, state->vps_data[0]); |
| saa7127_write(client, 0x56, state->vps_data[1]); |
| saa7127_write(client, 0x57, state->vps_data[2]); |
| saa7127_write(client, 0x58, state->vps_data[3]); |
| saa7127_write(client, 0x59, state->vps_data[4]); |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int saa7127_set_cc(struct i2c_client *client, struct v4l2_sliced_vbi_data *data) |
| { |
| struct saa7127_state *state = i2c_get_clientdata(client); |
| 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) { |
| v4l_dbg(1, client, "Turn CC %s\n", enable ? "on" : "off"); |
| saa7127_write(client, SAA7127_REG_CLOSED_CAPTION, |
| (state->xds_enable << 7) | (enable << 6) | 0x11); |
| state->cc_enable = enable; |
| } |
| if (!enable) |
| return 0; |
| |
| v4l_dbg(2, client, "CC data: %04x\n", cc); |
| saa7127_write(client, SAA7127_REG_LINE_21_ODD_0, cc & 0xff); |
| saa7127_write(client, SAA7127_REG_LINE_21_ODD_1, cc >> 8); |
| state->cc_data = cc; |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int saa7127_set_xds(struct i2c_client *client, struct v4l2_sliced_vbi_data *data) |
| { |
| struct saa7127_state *state = i2c_get_clientdata(client); |
| 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) { |
| v4l_dbg(1, client, "Turn XDS %s\n", enable ? "on" : "off"); |
| saa7127_write(client, SAA7127_REG_CLOSED_CAPTION, |
| (enable << 7) | (state->cc_enable << 6) | 0x11); |
| state->xds_enable = enable; |
| } |
| if (!enable) |
| return 0; |
| |
| v4l_dbg(2, client, "XDS data: %04x\n", xds); |
| saa7127_write(client, SAA7127_REG_LINE_21_EVEN_0, xds & 0xff); |
| saa7127_write(client, SAA7127_REG_LINE_21_EVEN_1, xds >> 8); |
| state->xds_data = xds; |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int saa7127_set_wss(struct i2c_client *client, struct v4l2_sliced_vbi_data *data) |
| { |
| struct saa7127_state *state = i2c_get_clientdata(client); |
| int enable = (data->line != 0); |
| |
| if (enable && (data->field != 0 || data->line != 23)) |
| return -EINVAL; |
| if (state->wss_enable != enable) { |
| v4l_dbg(1, client, "Turn WSS %s\n", enable ? "on" : "off"); |
| saa7127_write(client, 0x27, enable << 7); |
| state->wss_enable = enable; |
| } |
| if (!enable) |
| return 0; |
| |
| saa7127_write(client, 0x26, data->data[0]); |
| saa7127_write(client, 0x27, 0x80 | (data->data[1] & 0x3f)); |
| v4l_dbg(1, client, "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 i2c_client *client, int enable) |
| { |
| struct saa7127_state *state = i2c_get_clientdata(client); |
| |
| if (enable) { |
| v4l_dbg(1, client, "Enable Video Output\n"); |
| saa7127_write(client, 0x2d, state->reg_2d); |
| saa7127_write(client, 0x61, state->reg_61); |
| } else { |
| v4l_dbg(1, client, "Disable Video Output\n"); |
| saa7127_write(client, 0x2d, (state->reg_2d & 0xf0)); |
| saa7127_write(client, 0x61, (state->reg_61 | 0xc0)); |
| } |
| state->video_enable = enable; |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int saa7127_set_std(struct i2c_client *client, v4l2_std_id std) |
| { |
| struct saa7127_state *state = i2c_get_clientdata(client); |
| const struct i2c_reg_value *inittab; |
| |
| if (std & V4L2_STD_525_60) { |
| v4l_dbg(1, client, "Selecting 60 Hz video Standard\n"); |
| inittab = saa7127_init_config_60hz; |
| state->reg_61 = SAA7127_60HZ_DAC_CONTROL; |
| } else { |
| v4l_dbg(1, client, "Selecting 50 Hz video Standard\n"); |
| inittab = saa7127_init_config_50hz; |
| state->reg_61 = SAA7127_50HZ_DAC_CONTROL; |
| } |
| |
| /* Write Table */ |
| saa7127_write_inittab(client, inittab); |
| state->std = std; |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int saa7127_set_output_type(struct i2c_client *client, int output) |
| { |
| struct saa7127_state *state = i2c_get_clientdata(client); |
| |
| 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: |
| 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: |
| 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: |
| state->reg_2d = 0xbf; |
| state->reg_3a = 0x13; /* by default switch YUV to RGB-matrix on */ |
| break; |
| |
| default: |
| return -EINVAL; |
| } |
| v4l_dbg(1, client, "Selecting %s output type\n", output_strs[output]); |
| |
| /* Configure Encoder */ |
| saa7127_write(client, 0x2d, state->reg_2d); |
| saa7127_write(client, 0x3a, state->reg_3a | state->reg_3a_cb); |
| state->output_type = output; |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int saa7127_set_input_type(struct i2c_client *client, int input) |
| { |
| struct saa7127_state *state = i2c_get_clientdata(client); |
| |
| switch (input) { |
| case SAA7127_INPUT_TYPE_NORMAL: /* avia */ |
| v4l_dbg(1, client, "Selecting Normal Encoder Input\n"); |
| state->reg_3a_cb = 0; |
| break; |
| |
| case SAA7127_INPUT_TYPE_TEST_IMAGE: /* color bar */ |
| v4l_dbg(1, client, "Selecting Color Bar generator\n"); |
| state->reg_3a_cb = 0x80; |
| break; |
| |
| default: |
| return -EINVAL; |
| } |
| saa7127_write(client, 0x3a, state->reg_3a | state->reg_3a_cb); |
| state->input_type = input; |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int saa7127_command(struct i2c_client *client, |
| unsigned int cmd, void *arg) |
| { |
| struct saa7127_state *state = i2c_get_clientdata(client); |
| struct v4l2_format *fmt = arg; |
| int *iarg = arg; |
| |
| switch (cmd) { |
| case VIDIOC_S_STD: |
| if (state->std == *(v4l2_std_id *)arg) |
| break; |
| return saa7127_set_std(client, *(v4l2_std_id *)arg); |
| |
| case VIDIOC_G_STD: |
| *(v4l2_std_id *)arg = state->std; |
| break; |
| |
| case VIDIOC_S_INPUT: |
| if (state->input_type == *iarg) |
| break; |
| return saa7127_set_input_type(client, *iarg); |
| |
| case VIDIOC_S_OUTPUT: |
| if (state->output_type == *iarg) |
| break; |
| return saa7127_set_output_type(client, *iarg); |
| |
| case VIDIOC_STREAMON: |
| case VIDIOC_STREAMOFF: |
| if (state->video_enable == (cmd == VIDIOC_STREAMON)) |
| break; |
| return saa7127_set_video_enable(client, cmd == VIDIOC_STREAMON); |
| |
| case VIDIOC_G_FMT: |
| if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) |
| return -EINVAL; |
| |
| memset(&fmt->fmt.sliced, 0, sizeof(fmt->fmt.sliced)); |
| if (state->vps_enable) |
| fmt->fmt.sliced.service_lines[0][16] = V4L2_SLICED_VPS; |
| if (state->wss_enable) |
| fmt->fmt.sliced.service_lines[0][23] = V4L2_SLICED_WSS_625; |
| if (state->cc_enable) { |
| fmt->fmt.sliced.service_lines[0][21] = V4L2_SLICED_CAPTION_525; |
| fmt->fmt.sliced.service_lines[1][21] = V4L2_SLICED_CAPTION_525; |
| } |
| fmt->fmt.sliced.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); |
| break; |
| |
| case VIDIOC_LOG_STATUS: |
| v4l_info(client, "Standard: %s\n", (state->std & V4L2_STD_525_60) ? "60 Hz" : "50 Hz"); |
| v4l_info(client, "Input: %s\n", state->input_type ? "color bars" : "normal"); |
| v4l_info(client, "Output: %s\n", state->video_enable ? |
| output_strs[state->output_type] : "disabled"); |
| v4l_info(client, "WSS: %s\n", state->wss_enable ? |
| wss_strs[state->wss_mode] : "disabled"); |
| v4l_info(client, "VPS: %s\n", state->vps_enable ? "enabled" : "disabled"); |
| v4l_info(client, "CC: %s\n", state->cc_enable ? "enabled" : "disabled"); |
| break; |
| |
| #ifdef CONFIG_VIDEO_ADV_DEBUG |
| case VIDIOC_INT_G_REGISTER: |
| { |
| struct v4l2_register *reg = arg; |
| |
| if (reg->i2c_id != I2C_DRIVERID_SAA7127) |
| return -EINVAL; |
| reg->val = saa7127_read(client, reg->reg & 0xff); |
| break; |
| } |
| |
| case VIDIOC_INT_S_REGISTER: |
| { |
| struct v4l2_register *reg = arg; |
| |
| if (reg->i2c_id != I2C_DRIVERID_SAA7127) |
| return -EINVAL; |
| if (!capable(CAP_SYS_ADMIN)) |
| return -EPERM; |
| saa7127_write(client, reg->reg & 0xff, reg->val & 0xff); |
| break; |
| } |
| #endif |
| |
| case VIDIOC_INT_S_VBI_DATA: |
| { |
| struct v4l2_sliced_vbi_data *data = arg; |
| |
| switch (data->id) { |
| case V4L2_SLICED_WSS_625: |
| return saa7127_set_wss(client, data); |
| case V4L2_SLICED_VPS: |
| return saa7127_set_vps(client, data); |
| case V4L2_SLICED_CAPTION_525: |
| if (data->field == 0) |
| return saa7127_set_cc(client, data); |
| return saa7127_set_xds(client, data); |
| default: |
| return -EINVAL; |
| } |
| break; |
| } |
| |
| case VIDIOC_INT_G_CHIP_IDENT: |
| *(enum v4l2_chip_ident *)arg = state->ident; |
| break; |
| |
| default: |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static struct i2c_driver i2c_driver_saa7127; |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int saa7127_attach(struct i2c_adapter *adapter, int address, int kind) |
| { |
| struct i2c_client *client; |
| struct saa7127_state *state; |
| struct v4l2_sliced_vbi_data vbi = { 0, 0, 0, 0 }; /* set to disabled */ |
| int read_result = 0; |
| |
| /* Check if the adapter supports the needed features */ |
| if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
| return 0; |
| |
| client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL); |
| if (client == 0) |
| return -ENOMEM; |
| |
| memset(client, 0, sizeof(struct i2c_client)); |
| client->addr = address; |
| client->adapter = adapter; |
| client->driver = &i2c_driver_saa7127; |
| snprintf(client->name, sizeof(client->name) - 1, "saa7127"); |
| |
| v4l_dbg(1, client, "detecting saa7127 client on address 0x%x\n", address << 1); |
| |
| /* 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(client, 0) & 0xe4) != 0 || |
| (saa7127_read(client, 0x29) & 0x3f) != 0x1d) { |
| v4l_dbg(1, client, "saa7127 not found\n"); |
| kfree(client); |
| return 0; |
| } |
| state = kmalloc(sizeof(struct saa7127_state), GFP_KERNEL); |
| |
| if (state == NULL) { |
| kfree(client); |
| return (-ENOMEM); |
| } |
| |
| i2c_set_clientdata(client, state); |
| memset(state, 0, sizeof(struct saa7127_state)); |
| |
| /* Configure Encoder */ |
| |
| v4l_dbg(1, client, "Configuring encoder\n"); |
| saa7127_write_inittab(client, saa7127_init_config_common); |
| saa7127_set_std(client, V4L2_STD_NTSC); |
| saa7127_set_output_type(client, SAA7127_OUTPUT_TYPE_BOTH); |
| saa7127_set_vps(client, &vbi); |
| saa7127_set_wss(client, &vbi); |
| saa7127_set_cc(client, &vbi); |
| saa7127_set_xds(client, &vbi); |
| if (test_image == 1) { |
| /* The Encoder has an internal Colorbar generator */ |
| /* This can be used for debugging */ |
| saa7127_set_input_type(client, SAA7127_INPUT_TYPE_TEST_IMAGE); |
| } else { |
| saa7127_set_input_type(client, SAA7127_INPUT_TYPE_NORMAL); |
| } |
| saa7127_set_video_enable(client, 1); |
| |
| /* Detect if it's an saa7129 */ |
| read_result = saa7127_read(client, SAA7129_REG_FADE_KEY_COL2); |
| saa7127_write(client, SAA7129_REG_FADE_KEY_COL2, 0xaa); |
| if (saa7127_read(client, SAA7129_REG_FADE_KEY_COL2) == 0xaa) { |
| v4l_info(client, "saa7129 found @ 0x%x (%s)\n", address << 1, adapter->name); |
| saa7127_write(client, SAA7129_REG_FADE_KEY_COL2, read_result); |
| saa7127_write_inittab(client, saa7129_init_config_extra); |
| state->ident = V4L2_IDENT_SAA7129; |
| } else { |
| v4l_info(client, "saa7127 found @ 0x%x (%s)\n", address << 1, adapter->name); |
| state->ident = V4L2_IDENT_SAA7127; |
| } |
| |
| i2c_attach_client(client); |
| |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int saa7127_probe(struct i2c_adapter *adapter) |
| { |
| if (adapter->class & I2C_CLASS_TV_ANALOG) |
| return i2c_probe(adapter, &addr_data, saa7127_attach); |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int saa7127_detach(struct i2c_client *client) |
| { |
| struct saa7127_state *state = i2c_get_clientdata(client); |
| int err; |
| |
| /* Turn off TV output */ |
| saa7127_set_video_enable(client, 0); |
| |
| err = i2c_detach_client(client); |
| |
| if (err) { |
| return err; |
| } |
| |
| kfree(state); |
| kfree(client); |
| return 0; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static struct i2c_driver i2c_driver_saa7127 = { |
| .driver = { |
| .name = "saa7127", |
| }, |
| .id = I2C_DRIVERID_SAA7127, |
| .attach_adapter = saa7127_probe, |
| .detach_client = saa7127_detach, |
| .command = saa7127_command, |
| }; |
| |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static int __init saa7127_init_module(void) |
| { |
| return i2c_add_driver(&i2c_driver_saa7127); |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| static void __exit saa7127_cleanup_module(void) |
| { |
| i2c_del_driver(&i2c_driver_saa7127); |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| |
| module_init(saa7127_init_module); |
| module_exit(saa7127_cleanup_module); |