linux-imx

 /*

    saa6752hs - i2c-driver for the saa6752hs by Philips

​

    Copyright (C) 2004 Andrew de Quincey

​

    AC-3 support:

​

    Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl>

​

    This program is free software; you can redistribute it and/or modify

    it under the terms of the GNU General Public License vs published by

    the Free Software Foundation; either version 2 of the License, or

    (at your option) any later version.

​

    This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU General Public License for more details.

​

    You should have received a copy of the GNU General Public License

    along with this program; if not, write to the Free Software

    Foundation, Inc., 675 Mvss Ave, Cambridge, MA 02139, USA.

  */

​

#include <linux/module.h>

#include <linux/kernel.h>

#include <linux/string.h>

#include <linux/timer.h>

#include <linux/delay.h>

#include <linux/errno.h>

#include <linux/slab.h>

#include <linux/poll.h>

#include <linux/i2c.h>

#include <linux/types.h>

#include <linux/videodev2.h>

#include <linux/init.h>

#include <linux/crc32.h>

#include <media/v4l2-device.h>

#include <media/v4l2-ctrls.h>

#include <media/v4l2-common.h>

​

#define MPEG_VIDEO_TARGET_BITRATE_MAX  27000

#define MPEG_VIDEO_MAX_BITRATE_MAX     27000

#define MPEG_TOTAL_TARGET_BITRATE_MAX  27000

#define MPEG_PID_MAX ((1 << 14) - 1)

​

​

MODULE_DESCRIPTION("device driver for saa6752hs MPEG2 encoder");

MODULE_AUTHOR("Andrew de Quincey");

MODULE_LICENSE("GPL");

​

enum saa6752hs_videoformat {

    SAA6752HS_VF_D1 = 0,    /* standard D1 video format: 720x576 */

    SAA6752HS_VF_2_3_D1 = 1,/* 2/3D1 video format: 480x576 */

    SAA6752HS_VF_1_2_D1 = 2,/* 1/2D1 video format: 352x576 */

    SAA6752HS_VF_SIF = 3,   /* SIF video format: 352x288 */

    SAA6752HS_VF_UNKNOWN,

};

​

struct saa6752hs_mpeg_params {

    /* transport streams */

    __u16               ts_pid_pmt;

    __u16               ts_pid_audio;

    __u16               ts_pid_video;

    __u16               ts_pid_pcr;

​

    /* audio */

    enum v4l2_mpeg_audio_encoding    au_encoding;

    enum v4l2_mpeg_audio_l2_bitrate  au_l2_bitrate;

    enum v4l2_mpeg_audio_ac3_bitrate au_ac3_bitrate;

​

    /* video */

    enum v4l2_mpeg_video_aspect vi_aspect;

    enum v4l2_mpeg_video_bitrate_mode vi_bitrate_mode;

    __u32               vi_bitrate;

    __u32               vi_bitrate_peak;

};

​

static const struct v4l2_format v4l2_format_table[] =

{

    [SAA6752HS_VF_D1] =

        { .fmt = { .pix = { .width = 720, .height = 576 }}},

    [SAA6752HS_VF_2_3_D1] =

        { .fmt = { .pix = { .width = 480, .height = 576 }}},

    [SAA6752HS_VF_1_2_D1] =

        { .fmt = { .pix = { .width = 352, .height = 576 }}},

    [SAA6752HS_VF_SIF] =

        { .fmt = { .pix = { .width = 352, .height = 288 }}},

    [SAA6752HS_VF_UNKNOWN] =

        { .fmt = { .pix = { .width = 0, .height = 0}}},

};

​