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/*
* Copyright 2005-2010 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
/*!
* @defgroup MXC_V4L2_OUTPUT MXC V4L2 Video Output Driver
*/
/*!
* @file mxc_v4l2_output.h
*
* @brief MXC V4L2 Video Output Driver Header file
*
* Video4Linux2 Output Device using MXC IPU Post-processing functionality.
*
* @ingroup MXC_V4L2_OUTPUT
*/
#ifndef __MXC_V4L2_OUTPUT_H__
#define __MXC_V4L2_OUTPUT_H__
#include <media/v4l2-dev.h>
#ifdef __KERNEL__
#include <linux/ipu.h>
#include <linux/mxc_v4l2.h>
#include <linux/videodev2.h>
#define MIN_FRAME_NUM 2
#define MAX_FRAME_NUM 30
#define MXC_V4L2_OUT_NUM_OUTPUTS 6
#define MXC_V4L2_OUT_2_SDC 0
#define MXC_V4L2_OUT_2_ADC 1
typedef struct {
int list[MAX_FRAME_NUM + 1];
int head;
int tail;
} v4l_queue;
/*!
* States for the video stream
*/
typedef enum {
STATE_STREAM_OFF,
STATE_STREAM_ON,
STATE_STREAM_PAUSED,
STATE_STREAM_STOPPING,
} v4lout_state;
/*!
* common v4l2 driver structure.
*/
typedef struct _vout_data {
struct video_device *video_dev;
/*!
* semaphore guard against SMP multithreading
*/
struct semaphore busy_lock;
/*!
* number of process that have device open
*/
int open_count;
/*!
* params lock for this camera
*/
struct semaphore param_lock;
struct timer_list output_timer;
struct work_struct timer_work;
unsigned long start_jiffies;
u32 frame_count;
v4l_queue ready_q;
v4l_queue done_q;
s8 next_rdy_ipu_buf;
s8 next_done_ipu_buf;
s8 ipu_buf[2];
s8 ipu_buf_p[2];
s8 ipu_buf_n[2];
volatile v4lout_state state;
int cur_disp_output;
int output_fb_num[MXC_V4L2_OUT_NUM_OUTPUTS];
int output_enabled[MXC_V4L2_OUT_NUM_OUTPUTS];
struct v4l2_framebuffer v4l2_fb;
int ic_bypass;
u32 work_irq;
ipu_channel_t display_ch;
ipu_channel_t post_proc_ch;
ipu_channel_t display_input_ch;
/*!
* FRAME_NUM-buffering, so we need a array
*/
int buffer_cnt;
dma_addr_t queue_buf_paddr[MAX_FRAME_NUM];
void *queue_buf_vaddr[MAX_FRAME_NUM];
u32 queue_buf_size;
struct v4l2_buffer v4l2_bufs[MAX_FRAME_NUM];
u32 display_buf_size;
dma_addr_t display_bufs[2];
void *display_bufs_vaddr[2];
dma_addr_t rot_pp_bufs[2];
void *rot_pp_bufs_vaddr[2];
/*!
* Poll wait queue
*/
wait_queue_head_t v4l_bufq;
/*!
* v4l2 format
*/
struct v4l2_format v2f;
struct v4l2_mxc_offset offset;
ipu_rotate_mode_t rotate;
/* crop */
struct v4l2_rect crop_bounds[MXC_V4L2_OUT_NUM_OUTPUTS];
struct v4l2_rect crop_current;
u32 bytesperline;
enum v4l2_field field_fmt;
ipu_motion_sel motion_sel;
/* PP split fot two stripes*/
int pp_split; /* 0,1 */
struct stripe_param pp_left_stripe;
struct stripe_param pp_right_stripe; /* struct for split parameters */
/* IC ouput buffer number. Counting from 0 to 3 */
int pp_split_buf_num; /* 0..3 */
u16 bpp ; /* bit per pixel */
u16 xres; /* width of physical frame (BGs) */
u16 yres; /* heigth of physical frame (BGs)*/
} vout_data;
#endif
#endif /* __MXC_V4L2_OUTPUT_H__ */
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