804 lines
21 KiB
C
804 lines
21 KiB
C
/*
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saa6752hs - i2c-driver for the saa6752hs by Philips
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Copyright (C) 2004 Andrew de Quincey
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AC-3 support:
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Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl>
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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 vs 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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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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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 Mvss Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/timer.h>
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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#include <linux/poll.h>
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#include <linux/i2c.h>
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#include <linux/types.h>
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#include <linux/videodev2.h>
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#include <linux/init.h>
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#include <linux/crc32.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-common.h>
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#define MPEG_VIDEO_TARGET_BITRATE_MAX 27000
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#define MPEG_VIDEO_MAX_BITRATE_MAX 27000
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#define MPEG_TOTAL_TARGET_BITRATE_MAX 27000
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#define MPEG_PID_MAX ((1 << 14) - 1)
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MODULE_DESCRIPTION("device driver for saa6752hs MPEG2 encoder");
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MODULE_AUTHOR("Andrew de Quincey");
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MODULE_LICENSE("GPL");
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enum saa6752hs_videoformat {
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SAA6752HS_VF_D1 = 0, /* standard D1 video format: 720x576 */
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SAA6752HS_VF_2_3_D1 = 1,/* 2/3D1 video format: 480x576 */
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SAA6752HS_VF_1_2_D1 = 2,/* 1/2D1 video format: 352x576 */
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SAA6752HS_VF_SIF = 3, /* SIF video format: 352x288 */
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SAA6752HS_VF_UNKNOWN,
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};
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struct saa6752hs_mpeg_params {
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/* transport streams */
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__u16 ts_pid_pmt;
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__u16 ts_pid_audio;
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__u16 ts_pid_video;
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__u16 ts_pid_pcr;
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/* audio */
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enum v4l2_mpeg_audio_encoding au_encoding;
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enum v4l2_mpeg_audio_l2_bitrate au_l2_bitrate;
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enum v4l2_mpeg_audio_ac3_bitrate au_ac3_bitrate;
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/* video */
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enum v4l2_mpeg_video_aspect vi_aspect;
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enum v4l2_mpeg_video_bitrate_mode vi_bitrate_mode;
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__u32 vi_bitrate;
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__u32 vi_bitrate_peak;
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};
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static const struct v4l2_format v4l2_format_table[] =
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{
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[SAA6752HS_VF_D1] =
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{ .fmt = { .pix = { .width = 720, .height = 576 }}},
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[SAA6752HS_VF_2_3_D1] =
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{ .fmt = { .pix = { .width = 480, .height = 576 }}},
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[SAA6752HS_VF_1_2_D1] =
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{ .fmt = { .pix = { .width = 352, .height = 576 }}},
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[SAA6752HS_VF_SIF] =
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{ .fmt = { .pix = { .width = 352, .height = 288 }}},
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[SAA6752HS_VF_UNKNOWN] =
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{ .fmt = { .pix = { .width = 0, .height = 0}}},
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};
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struct saa6752hs_state {
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struct v4l2_subdev sd;
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struct v4l2_ctrl_handler hdl;
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struct { /* video bitrate mode control cluster */
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struct v4l2_ctrl *video_bitrate_mode;
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struct v4l2_ctrl *video_bitrate;
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struct v4l2_ctrl *video_bitrate_peak;
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};
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u32 revision;
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int has_ac3;
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struct saa6752hs_mpeg_params params;
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enum saa6752hs_videoformat video_format;
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v4l2_std_id standard;
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};
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enum saa6752hs_command {
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SAA6752HS_COMMAND_RESET = 0,
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SAA6752HS_COMMAND_STOP = 1,
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SAA6752HS_COMMAND_START = 2,
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SAA6752HS_COMMAND_PAUSE = 3,
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SAA6752HS_COMMAND_RECONFIGURE = 4,
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SAA6752HS_COMMAND_SLEEP = 5,
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SAA6752HS_COMMAND_RECONFIGURE_FORCE = 6,
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SAA6752HS_COMMAND_MAX
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};
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static inline struct saa6752hs_state *to_state(struct v4l2_subdev *sd)
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{
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return container_of(sd, struct saa6752hs_state, sd);
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}
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/* ---------------------------------------------------------------------- */
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static const u8 PAT[] = {
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0xc2, /* i2c register */
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0x00, /* table number for encoder */
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0x47, /* sync */
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0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid(0) */
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0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */
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0x00, /* PSI pointer to start of table */
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0x00, /* tid(0) */
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0xb0, 0x0d, /* section_syntax_indicator(1), section_length(13) */
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0x00, 0x01, /* transport_stream_id(1) */
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0xc1, /* version_number(0), current_next_indicator(1) */
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0x00, 0x00, /* section_number(0), last_section_number(0) */
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0x00, 0x01, /* program_number(1) */
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0xe0, 0x00, /* PMT PID */
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0x00, 0x00, 0x00, 0x00 /* CRC32 */
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};
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static const u8 PMT[] = {
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0xc2, /* i2c register */
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0x01, /* table number for encoder */
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0x47, /* sync */
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0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid */
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0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */
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0x00, /* PSI pointer to start of table */
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0x02, /* tid(2) */
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0xb0, 0x17, /* section_syntax_indicator(1), section_length(23) */
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0x00, 0x01, /* program_number(1) */
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0xc1, /* version_number(0), current_next_indicator(1) */
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0x00, 0x00, /* section_number(0), last_section_number(0) */
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0xe0, 0x00, /* PCR_PID */
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0xf0, 0x00, /* program_info_length(0) */
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0x02, 0xe0, 0x00, 0xf0, 0x00, /* video stream type(2), pid */
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0x04, 0xe0, 0x00, 0xf0, 0x00, /* audio stream type(4), pid */
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0x00, 0x00, 0x00, 0x00 /* CRC32 */
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};
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static const u8 PMT_AC3[] = {
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0xc2, /* i2c register */
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0x01, /* table number for encoder(1) */
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0x47, /* sync */
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0x40, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0) */
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0x10, /* PMT PID (0x0010) */
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0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */
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0x00, /* PSI pointer to start of table */
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0x02, /* TID (2) */
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0xb0, 0x1a, /* section_syntax_indicator(1), section_length(26) */
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0x00, 0x01, /* program_number(1) */
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0xc1, /* version_number(0), current_next_indicator(1) */
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0x00, 0x00, /* section_number(0), last_section_number(0) */
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0xe1, 0x04, /* PCR_PID (0x0104) */
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0xf0, 0x00, /* program_info_length(0) */
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0x02, 0xe1, 0x00, 0xf0, 0x00, /* video stream type(2), pid */
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0x06, 0xe1, 0x03, 0xf0, 0x03, /* audio stream type(6), pid */
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0x6a, /* AC3 */
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0x01, /* Descriptor_length(1) */
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0x00, /* component_type_flag(0), bsid_flag(0), mainid_flag(0), asvc_flag(0), reserved flags(0) */
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0xED, 0xDE, 0x2D, 0xF3 /* CRC32 BE */
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};
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static const struct saa6752hs_mpeg_params param_defaults =
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{
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.ts_pid_pmt = 16,
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.ts_pid_video = 260,
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.ts_pid_audio = 256,
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.ts_pid_pcr = 259,
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.vi_aspect = V4L2_MPEG_VIDEO_ASPECT_4x3,
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.vi_bitrate = 4000,
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.vi_bitrate_peak = 6000,
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.vi_bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_VBR,
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.au_encoding = V4L2_MPEG_AUDIO_ENCODING_LAYER_2,
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.au_l2_bitrate = V4L2_MPEG_AUDIO_L2_BITRATE_256K,
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.au_ac3_bitrate = V4L2_MPEG_AUDIO_AC3_BITRATE_256K,
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};
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/* ---------------------------------------------------------------------- */
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static int saa6752hs_chip_command(struct i2c_client *client,
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enum saa6752hs_command command)
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{
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unsigned char buf[3];
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unsigned long timeout;
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int status = 0;
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/* execute the command */
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switch(command) {
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case SAA6752HS_COMMAND_RESET:
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buf[0] = 0x00;
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break;
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case SAA6752HS_COMMAND_STOP:
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buf[0] = 0x03;
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break;
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case SAA6752HS_COMMAND_START:
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buf[0] = 0x02;
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break;
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case SAA6752HS_COMMAND_PAUSE:
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buf[0] = 0x04;
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break;
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case SAA6752HS_COMMAND_RECONFIGURE:
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buf[0] = 0x05;
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break;
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case SAA6752HS_COMMAND_SLEEP:
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buf[0] = 0x06;
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break;
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case SAA6752HS_COMMAND_RECONFIGURE_FORCE:
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buf[0] = 0x07;
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break;
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default:
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return -EINVAL;
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}
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/* set it and wait for it to be so */
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i2c_master_send(client, buf, 1);
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timeout = jiffies + HZ * 3;
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for (;;) {
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/* get the current status */
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buf[0] = 0x10;
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i2c_master_send(client, buf, 1);
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i2c_master_recv(client, buf, 1);
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if (!(buf[0] & 0x20))
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break;
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if (time_after(jiffies,timeout)) {
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status = -ETIMEDOUT;
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break;
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}
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msleep(10);
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}
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/* delay a bit to let encoder settle */
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msleep(50);
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return status;
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}
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static inline void set_reg8(struct i2c_client *client, uint8_t reg, uint8_t val)
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{
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u8 buf[2];
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buf[0] = reg;
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buf[1] = val;
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i2c_master_send(client, buf, 2);
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}
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static inline void set_reg16(struct i2c_client *client, uint8_t reg, uint16_t val)
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{
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u8 buf[3];
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buf[0] = reg;
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buf[1] = val >> 8;
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buf[2] = val & 0xff;
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i2c_master_send(client, buf, 3);
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}
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static int saa6752hs_set_bitrate(struct i2c_client *client,
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struct saa6752hs_state *h)
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{
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struct saa6752hs_mpeg_params *params = &h->params;
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int tot_bitrate;
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int is_384k;
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/* set the bitrate mode */
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set_reg8(client, 0x71,
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params->vi_bitrate_mode != V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
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/* set the video bitrate */
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if (params->vi_bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) {
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/* set the target bitrate */
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set_reg16(client, 0x80, params->vi_bitrate);
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/* set the max bitrate */
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set_reg16(client, 0x81, params->vi_bitrate_peak);
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tot_bitrate = params->vi_bitrate_peak;
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} else {
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/* set the target bitrate (no max bitrate for CBR) */
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set_reg16(client, 0x81, params->vi_bitrate);
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tot_bitrate = params->vi_bitrate;
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}
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/* set the audio encoding */
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set_reg8(client, 0x93,
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params->au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3);
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/* set the audio bitrate */
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if (params->au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3)
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is_384k = V4L2_MPEG_AUDIO_AC3_BITRATE_384K == params->au_ac3_bitrate;
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else
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is_384k = V4L2_MPEG_AUDIO_L2_BITRATE_384K == params->au_l2_bitrate;
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set_reg8(client, 0x94, is_384k);
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tot_bitrate += is_384k ? 384 : 256;
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/* Note: the total max bitrate is determined by adding the video and audio
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bitrates together and also adding an extra 768kbit/s to stay on the
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safe side. If more control should be required, then an extra MPEG control
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should be added. */
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tot_bitrate += 768;
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if (tot_bitrate > MPEG_TOTAL_TARGET_BITRATE_MAX)
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tot_bitrate = MPEG_TOTAL_TARGET_BITRATE_MAX;
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/* set the total bitrate */
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set_reg16(client, 0xb1, tot_bitrate);
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return 0;
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}
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static int saa6752hs_try_ctrl(struct v4l2_ctrl *ctrl)
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{
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struct saa6752hs_state *h =
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container_of(ctrl->handler, struct saa6752hs_state, hdl);
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switch (ctrl->id) {
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case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
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/* peak bitrate shall be >= normal bitrate */
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if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR &&
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h->video_bitrate_peak->val < h->video_bitrate->val)
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h->video_bitrate_peak->val = h->video_bitrate->val;
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break;
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}
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return 0;
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}
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static int saa6752hs_s_ctrl(struct v4l2_ctrl *ctrl)
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{
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struct saa6752hs_state *h =
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container_of(ctrl->handler, struct saa6752hs_state, hdl);
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struct saa6752hs_mpeg_params *params = &h->params;
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switch (ctrl->id) {
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case V4L2_CID_MPEG_STREAM_TYPE:
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break;
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case V4L2_CID_MPEG_STREAM_PID_PMT:
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params->ts_pid_pmt = ctrl->val;
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break;
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case V4L2_CID_MPEG_STREAM_PID_AUDIO:
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params->ts_pid_audio = ctrl->val;
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break;
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case V4L2_CID_MPEG_STREAM_PID_VIDEO:
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params->ts_pid_video = ctrl->val;
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break;
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case V4L2_CID_MPEG_STREAM_PID_PCR:
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params->ts_pid_pcr = ctrl->val;
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break;
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case V4L2_CID_MPEG_AUDIO_ENCODING:
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params->au_encoding = ctrl->val;
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break;
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case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
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params->au_l2_bitrate = ctrl->val;
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break;
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case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
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params->au_ac3_bitrate = ctrl->val;
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break;
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case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
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break;
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case V4L2_CID_MPEG_VIDEO_ENCODING:
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break;
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case V4L2_CID_MPEG_VIDEO_ASPECT:
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params->vi_aspect = ctrl->val;
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break;
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case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
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params->vi_bitrate_mode = ctrl->val;
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params->vi_bitrate = h->video_bitrate->val / 1000;
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params->vi_bitrate_peak = h->video_bitrate_peak->val / 1000;
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v4l2_ctrl_activate(h->video_bitrate_peak,
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ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int saa6752hs_init(struct v4l2_subdev *sd, u32 leading_null_bytes)
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{
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unsigned char buf[9], buf2[4];
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struct saa6752hs_state *h = to_state(sd);
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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unsigned size;
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u32 crc;
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unsigned char localPAT[256];
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unsigned char localPMT[256];
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/* Set video format - must be done first as it resets other settings */
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set_reg8(client, 0x41, h->video_format);
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/* Set number of lines in input signal */
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set_reg8(client, 0x40, (h->standard & V4L2_STD_525_60) ? 1 : 0);
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/* set bitrate */
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saa6752hs_set_bitrate(client, h);
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/* Set GOP structure {3, 13} */
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set_reg16(client, 0x72, 0x030d);
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/* Set minimum Q-scale {4} */
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set_reg8(client, 0x82, 0x04);
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/* Set maximum Q-scale {12} */
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set_reg8(client, 0x83, 0x0c);
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/* Set Output Protocol */
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set_reg8(client, 0xd0, 0x81);
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/* Set video output stream format {TS} */
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set_reg8(client, 0xb0, 0x05);
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/* Set leading null byte for TS */
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set_reg16(client, 0xf6, leading_null_bytes);
|
|
|
|
/* compute PAT */
|
|
memcpy(localPAT, PAT, sizeof(PAT));
|
|
localPAT[17] = 0xe0 | ((h->params.ts_pid_pmt >> 8) & 0x0f);
|
|
localPAT[18] = h->params.ts_pid_pmt & 0xff;
|
|
crc = crc32_be(~0, &localPAT[7], sizeof(PAT) - 7 - 4);
|
|
localPAT[sizeof(PAT) - 4] = (crc >> 24) & 0xFF;
|
|
localPAT[sizeof(PAT) - 3] = (crc >> 16) & 0xFF;
|
|
localPAT[sizeof(PAT) - 2] = (crc >> 8) & 0xFF;
|
|
localPAT[sizeof(PAT) - 1] = crc & 0xFF;
|
|
|
|
/* compute PMT */
|
|
if (h->params.au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3) {
|
|
size = sizeof(PMT_AC3);
|
|
memcpy(localPMT, PMT_AC3, size);
|
|
} else {
|
|
size = sizeof(PMT);
|
|
memcpy(localPMT, PMT, size);
|
|
}
|
|
localPMT[3] = 0x40 | ((h->params.ts_pid_pmt >> 8) & 0x0f);
|
|
localPMT[4] = h->params.ts_pid_pmt & 0xff;
|
|
localPMT[15] = 0xE0 | ((h->params.ts_pid_pcr >> 8) & 0x0F);
|
|
localPMT[16] = h->params.ts_pid_pcr & 0xFF;
|
|
localPMT[20] = 0xE0 | ((h->params.ts_pid_video >> 8) & 0x0F);
|
|
localPMT[21] = h->params.ts_pid_video & 0xFF;
|
|
localPMT[25] = 0xE0 | ((h->params.ts_pid_audio >> 8) & 0x0F);
|
|
localPMT[26] = h->params.ts_pid_audio & 0xFF;
|
|
crc = crc32_be(~0, &localPMT[7], size - 7 - 4);
|
|
localPMT[size - 4] = (crc >> 24) & 0xFF;
|
|
localPMT[size - 3] = (crc >> 16) & 0xFF;
|
|
localPMT[size - 2] = (crc >> 8) & 0xFF;
|
|
localPMT[size - 1] = crc & 0xFF;
|
|
|
|
/* Set Audio PID */
|
|
set_reg16(client, 0xc1, h->params.ts_pid_audio);
|
|
|
|
/* Set Video PID */
|
|
set_reg16(client, 0xc0, h->params.ts_pid_video);
|
|
|
|
/* Set PCR PID */
|
|
set_reg16(client, 0xc4, h->params.ts_pid_pcr);
|
|
|
|
/* Send SI tables */
|
|
i2c_master_send(client, localPAT, sizeof(PAT));
|
|
i2c_master_send(client, localPMT, size);
|
|
|
|
/* mute then unmute audio. This removes buzzing artefacts */
|
|
set_reg8(client, 0xa4, 1);
|
|
set_reg8(client, 0xa4, 0);
|
|
|
|
/* start it going */
|
|
saa6752hs_chip_command(client, SAA6752HS_COMMAND_START);
|
|
|
|
/* readout current state */
|
|
buf[0] = 0xE1;
|
|
buf[1] = 0xA7;
|
|
buf[2] = 0xFE;
|
|
buf[3] = 0x82;
|
|
buf[4] = 0xB0;
|
|
i2c_master_send(client, buf, 5);
|
|
i2c_master_recv(client, buf2, 4);
|
|
|
|
/* change aspect ratio */
|
|
buf[0] = 0xE0;
|
|
buf[1] = 0xA7;
|
|
buf[2] = 0xFE;
|
|
buf[3] = 0x82;
|
|
buf[4] = 0xB0;
|
|
buf[5] = buf2[0];
|
|
switch (h->params.vi_aspect) {
|
|
case V4L2_MPEG_VIDEO_ASPECT_16x9:
|
|
buf[6] = buf2[1] | 0x40;
|
|
break;
|
|
case V4L2_MPEG_VIDEO_ASPECT_4x3:
|
|
default:
|
|
buf[6] = buf2[1] & 0xBF;
|
|
break;
|
|
}
|
|
buf[7] = buf2[2];
|
|
buf[8] = buf2[3];
|
|
i2c_master_send(client, buf, 9);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int saa6752hs_get_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_pad_config *cfg,
|
|
struct v4l2_subdev_format *format)
|
|
{
|
|
struct v4l2_mbus_framefmt *f = &format->format;
|
|
struct saa6752hs_state *h = to_state(sd);
|
|
|
|
if (format->pad)
|
|
return -EINVAL;
|
|
|
|
if (h->video_format == SAA6752HS_VF_UNKNOWN)
|
|
h->video_format = SAA6752HS_VF_D1;
|
|
f->width = v4l2_format_table[h->video_format].fmt.pix.width;
|
|
f->height = v4l2_format_table[h->video_format].fmt.pix.height;
|
|
f->code = MEDIA_BUS_FMT_FIXED;
|
|
f->field = V4L2_FIELD_INTERLACED;
|
|
f->colorspace = V4L2_COLORSPACE_SMPTE170M;
|
|
return 0;
|
|
}
|
|
|
|
static int saa6752hs_set_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_subdev_pad_config *cfg,
|
|
struct v4l2_subdev_format *format)
|
|
{
|
|
struct v4l2_mbus_framefmt *f = &format->format;
|
|
struct saa6752hs_state *h = to_state(sd);
|
|
int dist_352, dist_480, dist_720;
|
|
|
|
if (format->pad)
|
|
return -EINVAL;
|
|
|
|
f->code = MEDIA_BUS_FMT_FIXED;
|
|
|
|
dist_352 = abs(f->width - 352);
|
|
dist_480 = abs(f->width - 480);
|
|
dist_720 = abs(f->width - 720);
|
|
if (dist_720 < dist_480) {
|
|
f->width = 720;
|
|
f->height = 576;
|
|
} else if (dist_480 < dist_352) {
|
|
f->width = 480;
|
|
f->height = 576;
|
|
} else {
|
|
f->width = 352;
|
|
if (abs(f->height - 576) < abs(f->height - 288))
|
|
f->height = 576;
|
|
else
|
|
f->height = 288;
|
|
}
|
|
f->field = V4L2_FIELD_INTERLACED;
|
|
f->colorspace = V4L2_COLORSPACE_SMPTE170M;
|
|
|
|
if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
|
|
cfg->try_fmt = *f;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
FIXME: translate and round width/height into EMPRESS
|
|
subsample type:
|
|
|
|
type | PAL | NTSC
|
|
---------------------------
|
|
SIF | 352x288 | 352x240
|
|
1/2 D1 | 352x576 | 352x480
|
|
2/3 D1 | 480x576 | 480x480
|
|
D1 | 720x576 | 720x480
|
|
*/
|
|
|
|
if (f->code != MEDIA_BUS_FMT_FIXED)
|
|
return -EINVAL;
|
|
|
|
if (f->width == 720)
|
|
h->video_format = SAA6752HS_VF_D1;
|
|
else if (f->width == 480)
|
|
h->video_format = SAA6752HS_VF_2_3_D1;
|
|
else if (f->height == 576)
|
|
h->video_format = SAA6752HS_VF_1_2_D1;
|
|
else
|
|
h->video_format = SAA6752HS_VF_SIF;
|
|
return 0;
|
|
}
|
|
|
|
static int saa6752hs_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
|
|
{
|
|
struct saa6752hs_state *h = to_state(sd);
|
|
|
|
h->standard = std;
|
|
return 0;
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
static const struct v4l2_ctrl_ops saa6752hs_ctrl_ops = {
|
|
.try_ctrl = saa6752hs_try_ctrl,
|
|
.s_ctrl = saa6752hs_s_ctrl,
|
|
};
|
|
|
|
static const struct v4l2_subdev_core_ops saa6752hs_core_ops = {
|
|
.init = saa6752hs_init,
|
|
};
|
|
|
|
static const struct v4l2_subdev_video_ops saa6752hs_video_ops = {
|
|
.s_std = saa6752hs_s_std,
|
|
};
|
|
|
|
static const struct v4l2_subdev_pad_ops saa6752hs_pad_ops = {
|
|
.get_fmt = saa6752hs_get_fmt,
|
|
.set_fmt = saa6752hs_set_fmt,
|
|
};
|
|
|
|
static const struct v4l2_subdev_ops saa6752hs_ops = {
|
|
.core = &saa6752hs_core_ops,
|
|
.video = &saa6752hs_video_ops,
|
|
.pad = &saa6752hs_pad_ops,
|
|
};
|
|
|
|
static int saa6752hs_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct saa6752hs_state *h;
|
|
struct v4l2_subdev *sd;
|
|
struct v4l2_ctrl_handler *hdl;
|
|
u8 addr = 0x13;
|
|
u8 data[12];
|
|
|
|
v4l_info(client, "chip found @ 0x%x (%s)\n",
|
|
client->addr << 1, client->adapter->name);
|
|
|
|
h = devm_kzalloc(&client->dev, sizeof(*h), GFP_KERNEL);
|
|
if (h == NULL)
|
|
return -ENOMEM;
|
|
sd = &h->sd;
|
|
v4l2_i2c_subdev_init(sd, client, &saa6752hs_ops);
|
|
|
|
i2c_master_send(client, &addr, 1);
|
|
i2c_master_recv(client, data, sizeof(data));
|
|
h->revision = (data[8] << 8) | data[9];
|
|
h->has_ac3 = 0;
|
|
if (h->revision == 0x0206) {
|
|
h->has_ac3 = 1;
|
|
v4l_info(client, "supports AC-3\n");
|
|
}
|
|
h->params = param_defaults;
|
|
|
|
hdl = &h->hdl;
|
|
v4l2_ctrl_handler_init(hdl, 14);
|
|
v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_AUDIO_ENCODING,
|
|
h->has_ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3 :
|
|
V4L2_MPEG_AUDIO_ENCODING_LAYER_2,
|
|
0x0d, V4L2_MPEG_AUDIO_ENCODING_LAYER_2);
|
|
|
|
v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_AUDIO_L2_BITRATE,
|
|
V4L2_MPEG_AUDIO_L2_BITRATE_384K,
|
|
~((1 << V4L2_MPEG_AUDIO_L2_BITRATE_256K) |
|
|
(1 << V4L2_MPEG_AUDIO_L2_BITRATE_384K)),
|
|
V4L2_MPEG_AUDIO_L2_BITRATE_256K);
|
|
|
|
if (h->has_ac3)
|
|
v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_AUDIO_AC3_BITRATE,
|
|
V4L2_MPEG_AUDIO_AC3_BITRATE_384K,
|
|
~((1 << V4L2_MPEG_AUDIO_AC3_BITRATE_256K) |
|
|
(1 << V4L2_MPEG_AUDIO_AC3_BITRATE_384K)),
|
|
V4L2_MPEG_AUDIO_AC3_BITRATE_256K);
|
|
|
|
v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ,
|
|
V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000,
|
|
~(1 << V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000),
|
|
V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000);
|
|
|
|
v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_VIDEO_ENCODING,
|
|
V4L2_MPEG_VIDEO_ENCODING_MPEG_2,
|
|
~(1 << V4L2_MPEG_VIDEO_ENCODING_MPEG_2),
|
|
V4L2_MPEG_VIDEO_ENCODING_MPEG_2);
|
|
|
|
v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_VIDEO_ASPECT,
|
|
V4L2_MPEG_VIDEO_ASPECT_16x9, 0x01,
|
|
V4L2_MPEG_VIDEO_ASPECT_4x3);
|
|
|
|
h->video_bitrate_peak = v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
|
|
1000000, 27000000, 1000, 8000000);
|
|
|
|
v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_STREAM_TYPE,
|
|
V4L2_MPEG_STREAM_TYPE_MPEG2_TS,
|
|
~(1 << V4L2_MPEG_STREAM_TYPE_MPEG2_TS),
|
|
V4L2_MPEG_STREAM_TYPE_MPEG2_TS);
|
|
|
|
h->video_bitrate_mode = v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
|
|
V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 0,
|
|
V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
|
|
h->video_bitrate = v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_VIDEO_BITRATE, 1000000, 27000000, 1000, 6000000);
|
|
v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_STREAM_PID_PMT, 0, (1 << 14) - 1, 1, 16);
|
|
v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_STREAM_PID_AUDIO, 0, (1 << 14) - 1, 1, 260);
|
|
v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_STREAM_PID_VIDEO, 0, (1 << 14) - 1, 1, 256);
|
|
v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops,
|
|
V4L2_CID_MPEG_STREAM_PID_PCR, 0, (1 << 14) - 1, 1, 259);
|
|
sd->ctrl_handler = hdl;
|
|
if (hdl->error) {
|
|
int err = hdl->error;
|
|
|
|
v4l2_ctrl_handler_free(hdl);
|
|
return err;
|
|
}
|
|
v4l2_ctrl_cluster(3, &h->video_bitrate_mode);
|
|
v4l2_ctrl_handler_setup(hdl);
|
|
h->standard = 0; /* Assume 625 input lines */
|
|
return 0;
|
|
}
|
|
|
|
static int saa6752hs_remove(struct i2c_client *client)
|
|
{
|
|
struct v4l2_subdev *sd = i2c_get_clientdata(client);
|
|
|
|
v4l2_device_unregister_subdev(sd);
|
|
v4l2_ctrl_handler_free(&to_state(sd)->hdl);
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id saa6752hs_id[] = {
|
|
{ "saa6752hs", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, saa6752hs_id);
|
|
|
|
static struct i2c_driver saa6752hs_driver = {
|
|
.driver = {
|
|
.name = "saa6752hs",
|
|
},
|
|
.probe = saa6752hs_probe,
|
|
.remove = saa6752hs_remove,
|
|
.id_table = saa6752hs_id,
|
|
};
|
|
|
|
module_i2c_driver(saa6752hs_driver);
|