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819 lines
25 KiB
819 lines
25 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* saa7127 - Philips SAA7127/SAA7129 video encoder driver |
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* |
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* Copyright (C) 2003 Roy Bulter <[email protected]> |
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* |
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* Based on SAA7126 video encoder driver by Gillem & Andreas Oberritter |
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* |
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* Copyright (C) 2000-2001 Gillem <[email protected]> |
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* Copyright (C) 2002 Andreas Oberritter <[email protected]> |
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* |
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* Based on Stadis 4:2:2 MPEG-2 Decoder Driver by Nathan Laredo |
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* |
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* Copyright (C) 1999 Nathan Laredo <[email protected]> |
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* |
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* This driver is designed for the Hauppauge 250/350 Linux driver |
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* from the ivtv Project |
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* |
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* Copyright (C) 2003 Kevin Thayer <[email protected]> |
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* |
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* Dual output support: |
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* Copyright (C) 2004 Eric Varsanyi |
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* |
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* NTSC Tuning and 7.5 IRE Setup |
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* Copyright (C) 2004 Chris Kennedy <[email protected]> |
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* |
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* VBI additions & cleanup: |
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* Copyright (C) 2004, 2005 Hans Verkuil <[email protected]> |
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* |
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* Note: the saa7126 is identical to the saa7127, and the saa7128 is |
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* identical to the saa7129, except that the saa7126 and saa7128 have |
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* macrovision anti-taping support. This driver will almost certainly |
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* work fine for those chips, except of course for the missing anti-taping |
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* support. |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/slab.h> |
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#include <linux/i2c.h> |
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#include <linux/videodev2.h> |
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#include <media/v4l2-device.h> |
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#include <media/i2c/saa7127.h> |
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static int debug; |
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static int test_image; |
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MODULE_DESCRIPTION("Philips SAA7127/9 video encoder driver"); |
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MODULE_AUTHOR("Kevin Thayer, Chris Kennedy, Hans Verkuil"); |
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MODULE_LICENSE("GPL"); |
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module_param(debug, int, 0644); |
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module_param(test_image, int, 0644); |
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MODULE_PARM_DESC(debug, "debug level (0-2)"); |
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MODULE_PARM_DESC(test_image, "test_image (0-1)"); |
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/* |
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* SAA7127 registers |
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*/ |
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#define SAA7127_REG_STATUS 0x00 |
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#define SAA7127_REG_WIDESCREEN_CONFIG 0x26 |
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#define SAA7127_REG_WIDESCREEN_ENABLE 0x27 |
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#define SAA7127_REG_BURST_START 0x28 |
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#define SAA7127_REG_BURST_END 0x29 |
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#define SAA7127_REG_COPYGEN_0 0x2a |
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#define SAA7127_REG_COPYGEN_1 0x2b |
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#define SAA7127_REG_COPYGEN_2 0x2c |
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#define SAA7127_REG_OUTPUT_PORT_CONTROL 0x2d |
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#define SAA7127_REG_GAIN_LUMINANCE_RGB 0x38 |
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#define SAA7127_REG_GAIN_COLORDIFF_RGB 0x39 |
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#define SAA7127_REG_INPUT_PORT_CONTROL_1 0x3a |
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#define SAA7129_REG_FADE_KEY_COL2 0x4f |
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#define SAA7127_REG_CHROMA_PHASE 0x5a |
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#define SAA7127_REG_GAINU 0x5b |
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#define SAA7127_REG_GAINV 0x5c |
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#define SAA7127_REG_BLACK_LEVEL 0x5d |
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#define SAA7127_REG_BLANKING_LEVEL 0x5e |
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#define SAA7127_REG_VBI_BLANKING 0x5f |
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#define SAA7127_REG_DAC_CONTROL 0x61 |
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#define SAA7127_REG_BURST_AMP 0x62 |
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#define SAA7127_REG_SUBC3 0x63 |
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#define SAA7127_REG_SUBC2 0x64 |
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#define SAA7127_REG_SUBC1 0x65 |
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#define SAA7127_REG_SUBC0 0x66 |
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#define SAA7127_REG_LINE_21_ODD_0 0x67 |
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#define SAA7127_REG_LINE_21_ODD_1 0x68 |
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#define SAA7127_REG_LINE_21_EVEN_0 0x69 |
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#define SAA7127_REG_LINE_21_EVEN_1 0x6a |
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#define SAA7127_REG_RCV_PORT_CONTROL 0x6b |
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#define SAA7127_REG_VTRIG 0x6c |
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#define SAA7127_REG_HTRIG_HI 0x6d |
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#define SAA7127_REG_MULTI 0x6e |
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#define SAA7127_REG_CLOSED_CAPTION 0x6f |
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#define SAA7127_REG_RCV2_OUTPUT_START 0x70 |
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#define SAA7127_REG_RCV2_OUTPUT_END 0x71 |
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#define SAA7127_REG_RCV2_OUTPUT_MSBS 0x72 |
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#define SAA7127_REG_TTX_REQUEST_H_START 0x73 |
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#define SAA7127_REG_TTX_REQUEST_H_DELAY_LENGTH 0x74 |
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#define SAA7127_REG_CSYNC_ADVANCE_VSYNC_SHIFT 0x75 |
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#define SAA7127_REG_TTX_ODD_REQ_VERT_START 0x76 |
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#define SAA7127_REG_TTX_ODD_REQ_VERT_END 0x77 |
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#define SAA7127_REG_TTX_EVEN_REQ_VERT_START 0x78 |
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#define SAA7127_REG_TTX_EVEN_REQ_VERT_END 0x79 |
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#define SAA7127_REG_FIRST_ACTIVE 0x7a |
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#define SAA7127_REG_LAST_ACTIVE 0x7b |
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#define SAA7127_REG_MSB_VERTICAL 0x7c |
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#define SAA7127_REG_DISABLE_TTX_LINE_LO_0 0x7e |
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#define SAA7127_REG_DISABLE_TTX_LINE_LO_1 0x7f |
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/* |
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********************************************************************** |
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* |
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* Arrays with configuration parameters for the SAA7127 |
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* |
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********************************************************************** |
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*/ |
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struct i2c_reg_value { |
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unsigned char reg; |
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unsigned char value; |
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}; |
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static const struct i2c_reg_value saa7129_init_config_extra[] = { |
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{ SAA7127_REG_OUTPUT_PORT_CONTROL, 0x38 }, |
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{ SAA7127_REG_VTRIG, 0xfa }, |
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{ 0, 0 } |
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}; |
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static const struct i2c_reg_value saa7127_init_config_common[] = { |
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{ SAA7127_REG_WIDESCREEN_CONFIG, 0x0d }, |
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{ SAA7127_REG_WIDESCREEN_ENABLE, 0x00 }, |
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{ SAA7127_REG_COPYGEN_0, 0x77 }, |
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{ SAA7127_REG_COPYGEN_1, 0x41 }, |
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{ SAA7127_REG_COPYGEN_2, 0x00 }, /* Macrovision enable/disable */ |
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{ SAA7127_REG_OUTPUT_PORT_CONTROL, 0xbf }, |
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{ SAA7127_REG_GAIN_LUMINANCE_RGB, 0x00 }, |
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{ SAA7127_REG_GAIN_COLORDIFF_RGB, 0x00 }, |
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{ SAA7127_REG_INPUT_PORT_CONTROL_1, 0x80 }, /* for color bars */ |
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{ SAA7127_REG_LINE_21_ODD_0, 0x77 }, |
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{ SAA7127_REG_LINE_21_ODD_1, 0x41 }, |
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{ SAA7127_REG_LINE_21_EVEN_0, 0x88 }, |
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{ SAA7127_REG_LINE_21_EVEN_1, 0x41 }, |
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{ SAA7127_REG_RCV_PORT_CONTROL, 0x12 }, |
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{ SAA7127_REG_VTRIG, 0xf9 }, |
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{ SAA7127_REG_HTRIG_HI, 0x00 }, |
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{ SAA7127_REG_RCV2_OUTPUT_START, 0x41 }, |
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{ SAA7127_REG_RCV2_OUTPUT_END, 0xc3 }, |
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{ SAA7127_REG_RCV2_OUTPUT_MSBS, 0x00 }, |
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{ SAA7127_REG_TTX_REQUEST_H_START, 0x3e }, |
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{ SAA7127_REG_TTX_REQUEST_H_DELAY_LENGTH, 0xb8 }, |
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{ SAA7127_REG_CSYNC_ADVANCE_VSYNC_SHIFT, 0x03 }, |
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{ SAA7127_REG_TTX_ODD_REQ_VERT_START, 0x15 }, |
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{ SAA7127_REG_TTX_ODD_REQ_VERT_END, 0x16 }, |
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{ SAA7127_REG_TTX_EVEN_REQ_VERT_START, 0x15 }, |
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{ SAA7127_REG_TTX_EVEN_REQ_VERT_END, 0x16 }, |
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{ SAA7127_REG_FIRST_ACTIVE, 0x1a }, |
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{ SAA7127_REG_LAST_ACTIVE, 0x01 }, |
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{ SAA7127_REG_MSB_VERTICAL, 0xc0 }, |
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{ SAA7127_REG_DISABLE_TTX_LINE_LO_0, 0x00 }, |
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{ SAA7127_REG_DISABLE_TTX_LINE_LO_1, 0x00 }, |
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{ 0, 0 } |
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}; |
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#define SAA7127_60HZ_DAC_CONTROL 0x15 |
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static const struct i2c_reg_value saa7127_init_config_60hz[] = { |
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{ SAA7127_REG_BURST_START, 0x19 }, |
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/* BURST_END is also used as a chip ID in saa7127_probe */ |
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{ SAA7127_REG_BURST_END, 0x1d }, |
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{ SAA7127_REG_CHROMA_PHASE, 0xa3 }, |
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{ SAA7127_REG_GAINU, 0x98 }, |
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{ SAA7127_REG_GAINV, 0xd3 }, |
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{ SAA7127_REG_BLACK_LEVEL, 0x39 }, |
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{ SAA7127_REG_BLANKING_LEVEL, 0x2e }, |
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{ SAA7127_REG_VBI_BLANKING, 0x2e }, |
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{ SAA7127_REG_DAC_CONTROL, 0x15 }, |
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{ SAA7127_REG_BURST_AMP, 0x4d }, |
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{ SAA7127_REG_SUBC3, 0x1f }, |
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{ SAA7127_REG_SUBC2, 0x7c }, |
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{ SAA7127_REG_SUBC1, 0xf0 }, |
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{ SAA7127_REG_SUBC0, 0x21 }, |
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{ SAA7127_REG_MULTI, 0x90 }, |
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{ SAA7127_REG_CLOSED_CAPTION, 0x11 }, |
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{ 0, 0 } |
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}; |
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#define SAA7127_50HZ_PAL_DAC_CONTROL 0x02 |
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static struct i2c_reg_value saa7127_init_config_50hz_pal[] = { |
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{ SAA7127_REG_BURST_START, 0x21 }, |
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/* BURST_END is also used as a chip ID in saa7127_probe */ |
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{ SAA7127_REG_BURST_END, 0x1d }, |
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{ SAA7127_REG_CHROMA_PHASE, 0x3f }, |
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{ SAA7127_REG_GAINU, 0x7d }, |
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{ SAA7127_REG_GAINV, 0xaf }, |
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{ SAA7127_REG_BLACK_LEVEL, 0x33 }, |
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{ SAA7127_REG_BLANKING_LEVEL, 0x35 }, |
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{ SAA7127_REG_VBI_BLANKING, 0x35 }, |
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{ SAA7127_REG_DAC_CONTROL, 0x02 }, |
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{ SAA7127_REG_BURST_AMP, 0x2f }, |
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{ SAA7127_REG_SUBC3, 0xcb }, |
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{ SAA7127_REG_SUBC2, 0x8a }, |
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{ SAA7127_REG_SUBC1, 0x09 }, |
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{ SAA7127_REG_SUBC0, 0x2a }, |
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{ SAA7127_REG_MULTI, 0xa0 }, |
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{ SAA7127_REG_CLOSED_CAPTION, 0x00 }, |
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{ 0, 0 } |
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}; |
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#define SAA7127_50HZ_SECAM_DAC_CONTROL 0x08 |
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static struct i2c_reg_value saa7127_init_config_50hz_secam[] = { |
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{ SAA7127_REG_BURST_START, 0x21 }, |
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/* BURST_END is also used as a chip ID in saa7127_probe */ |
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{ SAA7127_REG_BURST_END, 0x1d }, |
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{ SAA7127_REG_CHROMA_PHASE, 0x3f }, |
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{ SAA7127_REG_GAINU, 0x6a }, |
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{ SAA7127_REG_GAINV, 0x81 }, |
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{ SAA7127_REG_BLACK_LEVEL, 0x33 }, |
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{ SAA7127_REG_BLANKING_LEVEL, 0x35 }, |
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{ SAA7127_REG_VBI_BLANKING, 0x35 }, |
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{ SAA7127_REG_DAC_CONTROL, 0x08 }, |
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{ SAA7127_REG_BURST_AMP, 0x2f }, |
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{ SAA7127_REG_SUBC3, 0xb2 }, |
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{ SAA7127_REG_SUBC2, 0x3b }, |
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{ SAA7127_REG_SUBC1, 0xa3 }, |
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{ SAA7127_REG_SUBC0, 0x28 }, |
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{ SAA7127_REG_MULTI, 0x90 }, |
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{ SAA7127_REG_CLOSED_CAPTION, 0x00 }, |
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{ 0, 0 } |
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}; |
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/* |
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********************************************************************** |
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* |
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* Encoder Struct, holds the configuration state of the encoder |
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* |
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********************************************************************** |
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*/ |
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enum saa712x_model { |
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SAA7127, |
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SAA7129, |
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}; |
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struct saa7127_state { |
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struct v4l2_subdev sd; |
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v4l2_std_id std; |
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enum saa712x_model ident; |
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enum saa7127_input_type input_type; |
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enum saa7127_output_type output_type; |
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int video_enable; |
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int wss_enable; |
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u16 wss_mode; |
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int cc_enable; |
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u16 cc_data; |
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int xds_enable; |
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u16 xds_data; |
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int vps_enable; |
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u8 vps_data[5]; |
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u8 reg_2d; |
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u8 reg_3a; |
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u8 reg_3a_cb; /* colorbar bit */ |
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u8 reg_61; |
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}; |
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static inline struct saa7127_state *to_state(struct v4l2_subdev *sd) |
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{ |
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return container_of(sd, struct saa7127_state, sd); |
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} |
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static const char * const output_strs[] = |
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{ |
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"S-Video + Composite", |
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"Composite", |
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"S-Video", |
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"RGB", |
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"YUV C", |
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"YUV V" |
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}; |
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static const char * const wss_strs[] = { |
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"invalid", |
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"letterbox 14:9 center", |
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"letterbox 14:9 top", |
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"invalid", |
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"letterbox 16:9 top", |
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"invalid", |
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"invalid", |
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"16:9 full format anamorphic", |
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"4:3 full format", |
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"invalid", |
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"invalid", |
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"letterbox 16:9 center", |
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"invalid", |
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"letterbox >16:9 center", |
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"14:9 full format center", |
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"invalid", |
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}; |
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/* ----------------------------------------------------------------------- */ |
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static int saa7127_read(struct v4l2_subdev *sd, u8 reg) |
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{ |
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struct i2c_client *client = v4l2_get_subdevdata(sd); |
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return i2c_smbus_read_byte_data(client, reg); |
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} |
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/* ----------------------------------------------------------------------- */ |
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static int saa7127_write(struct v4l2_subdev *sd, u8 reg, u8 val) |
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{ |
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struct i2c_client *client = v4l2_get_subdevdata(sd); |
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int i; |
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for (i = 0; i < 3; i++) { |
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if (i2c_smbus_write_byte_data(client, reg, val) == 0) |
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return 0; |
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} |
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v4l2_err(sd, "I2C Write Problem\n"); |
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return -1; |
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} |
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/* ----------------------------------------------------------------------- */ |
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static int saa7127_write_inittab(struct v4l2_subdev *sd, |
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const struct i2c_reg_value *regs) |
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{ |
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while (regs->reg != 0) { |
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saa7127_write(sd, regs->reg, regs->value); |
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regs++; |
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} |
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return 0; |
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} |
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/* ----------------------------------------------------------------------- */ |
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static int saa7127_set_vps(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data) |
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{ |
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struct saa7127_state *state = to_state(sd); |
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int enable = (data->line != 0); |
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if (enable && (data->field != 0 || data->line != 16)) |
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return -EINVAL; |
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if (state->vps_enable != enable) { |
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v4l2_dbg(1, debug, sd, "Turn VPS Signal %s\n", enable ? "on" : "off"); |
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saa7127_write(sd, 0x54, enable << 7); |
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state->vps_enable = enable; |
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} |
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if (!enable) |
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return 0; |
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state->vps_data[0] = data->data[2]; |
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state->vps_data[1] = data->data[8]; |
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state->vps_data[2] = data->data[9]; |
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state->vps_data[3] = data->data[10]; |
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state->vps_data[4] = data->data[11]; |
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v4l2_dbg(1, debug, sd, "Set VPS data %*ph\n", 5, state->vps_data); |
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saa7127_write(sd, 0x55, state->vps_data[0]); |
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saa7127_write(sd, 0x56, state->vps_data[1]); |
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saa7127_write(sd, 0x57, state->vps_data[2]); |
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saa7127_write(sd, 0x58, state->vps_data[3]); |
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saa7127_write(sd, 0x59, state->vps_data[4]); |
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return 0; |
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} |
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/* ----------------------------------------------------------------------- */ |
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static int saa7127_set_cc(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data) |
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{ |
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struct saa7127_state *state = to_state(sd); |
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u16 cc = data->data[1] << 8 | data->data[0]; |
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int enable = (data->line != 0); |
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if (enable && (data->field != 0 || data->line != 21)) |
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return -EINVAL; |
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if (state->cc_enable != enable) { |
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v4l2_dbg(1, debug, sd, |
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"Turn CC %s\n", enable ? "on" : "off"); |
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saa7127_write(sd, SAA7127_REG_CLOSED_CAPTION, |
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(state->xds_enable << 7) | (enable << 6) | 0x11); |
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state->cc_enable = enable; |
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} |
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if (!enable) |
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return 0; |
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v4l2_dbg(2, debug, sd, "CC data: %04x\n", cc); |
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saa7127_write(sd, SAA7127_REG_LINE_21_ODD_0, cc & 0xff); |
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saa7127_write(sd, SAA7127_REG_LINE_21_ODD_1, cc >> 8); |
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state->cc_data = cc; |
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return 0; |
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} |
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/* ----------------------------------------------------------------------- */ |
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static int saa7127_set_xds(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data) |
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{ |
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struct saa7127_state *state = to_state(sd); |
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u16 xds = data->data[1] << 8 | data->data[0]; |
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int enable = (data->line != 0); |
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if (enable && (data->field != 1 || data->line != 21)) |
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return -EINVAL; |
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if (state->xds_enable != enable) { |
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v4l2_dbg(1, debug, sd, "Turn XDS %s\n", enable ? "on" : "off"); |
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saa7127_write(sd, SAA7127_REG_CLOSED_CAPTION, |
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(enable << 7) | (state->cc_enable << 6) | 0x11); |
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state->xds_enable = enable; |
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} |
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if (!enable) |
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return 0; |
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v4l2_dbg(2, debug, sd, "XDS data: %04x\n", xds); |
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saa7127_write(sd, SAA7127_REG_LINE_21_EVEN_0, xds & 0xff); |
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saa7127_write(sd, SAA7127_REG_LINE_21_EVEN_1, xds >> 8); |
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state->xds_data = xds; |
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return 0; |
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} |
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/* ----------------------------------------------------------------------- */ |
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static int saa7127_set_wss(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *data) |
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{ |
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struct saa7127_state *state = to_state(sd); |
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int enable = (data->line != 0); |
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if (enable && (data->field != 0 || data->line != 23)) |
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return -EINVAL; |
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if (state->wss_enable != enable) { |
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v4l2_dbg(1, debug, sd, "Turn WSS %s\n", enable ? "on" : "off"); |
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saa7127_write(sd, 0x27, enable << 7); |
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state->wss_enable = enable; |
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} |
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if (!enable) |
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return 0; |
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saa7127_write(sd, 0x26, data->data[0]); |
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saa7127_write(sd, 0x27, 0x80 | (data->data[1] & 0x3f)); |
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v4l2_dbg(1, debug, sd, |
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"WSS mode: %s\n", wss_strs[data->data[0] & 0xf]); |
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state->wss_mode = (data->data[1] & 0x3f) << 8 | data->data[0]; |
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return 0; |
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} |
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/* ----------------------------------------------------------------------- */ |
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static int saa7127_set_video_enable(struct v4l2_subdev *sd, int enable) |
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{ |
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struct saa7127_state *state = to_state(sd); |
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|
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if (enable) { |
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v4l2_dbg(1, debug, sd, "Enable Video Output\n"); |
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saa7127_write(sd, 0x2d, state->reg_2d); |
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saa7127_write(sd, 0x61, state->reg_61); |
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} 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 == 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 == 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 == 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 == 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->service_lines, 0, sizeof(fmt->service_lines)); |
|
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) |
|
{ |
|
reg->val = saa7127_read(sd, reg->reg & 0xff); |
|
reg->size = 1; |
|
return 0; |
|
} |
|
|
|
static int saa7127_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg) |
|
{ |
|
saa7127_write(sd, reg->reg & 0xff, reg->val & 0xff); |
|
return 0; |
|
} |
|
#endif |
|
|
|
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, |
|
#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 = devm_kzalloc(&client->dev, sizeof(*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"); |
|
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 = SAA7129; |
|
strscpy(client->name, "saa7129", I2C_NAME_SIZE); |
|
} else { |
|
state->ident = SAA7127; |
|
strscpy(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 == 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); |
|
return 0; |
|
} |
|
|
|
/* ----------------------------------------------------------------------- */ |
|
|
|
static const struct i2c_device_id saa7127_id[] = { |
|
{ "saa7127_auto", 0 }, /* auto-detection */ |
|
{ "saa7126", SAA7127 }, |
|
{ "saa7127", SAA7127 }, |
|
{ "saa7128", SAA7129 }, |
|
{ "saa7129", SAA7129 }, |
|
{ } |
|
}; |
|
MODULE_DEVICE_TABLE(i2c, saa7127_id); |
|
|
|
static struct i2c_driver saa7127_driver = { |
|
.driver = { |
|
.name = "saa7127", |
|
}, |
|
.probe = saa7127_probe, |
|
.remove = saa7127_remove, |
|
.id_table = saa7127_id, |
|
}; |
|
|
|
module_i2c_driver(saa7127_driver);
|
|
|