![Hans Verkuil](/assets/img/avatar_default.png)
Various subdevs cleared the full v4l2_sliced_vbi_format struct, when only the service_set/lines fields should have been cleared. Due to this the io_size field was wrongly cleared to 0, causing a v4l2-compliance error. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
853 lines
26 KiB
C
853 lines
26 KiB
C
/*
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* saa7127 - Philips SAA7127/SAA7129 video encoder driver
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*
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* Copyright (C) 2003 Roy Bulter <rbulter@hetnet.nl>
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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 <htoa@gmx.net>
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* Copyright (C) 2002 Andreas Oberritter <obi@saftware.de>
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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 <laredo@gnu.org>
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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 <nufan_wfk@yahoo.com>
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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 <c@groovy.org>
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*
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* VBI additions & cleanup:
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* Copyright (C) 2004, 2005 Hans Verkuil <hverkuil@xs4all.nl>
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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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/v4l2-chip-ident.h>
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#include <media/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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struct saa7127_state {
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struct v4l2_subdev sd;
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v4l2_std_id std;
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u32 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);
|
|
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->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)
|
|
{
|
|
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);
|