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/**********************************************************************
*
* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*
******************************************************************************/
#ifndef __V4L2_GFX_BC_H__
#define __V4L2_GFX_BC_H__
#include <media/v4l2-dev.h>
struct bc_buf_params_common {
int count; /*number of buffers */
int width; /*buffer width in pixel, multiple of 32 */
int height; /*buffer height in pixel */
u32 pixel_fmt; /* V4L2 buffer pixel format */
int stride;
int size;
};
struct bc_buf_params {
int count; /*number of buffers (in) */
int width; /*buffer width in pixel, multiple of 32 (in) */
int height; /*buffer height in pixel (in) */
u32 pixel_fmt; /* V4L2 buffer pixel format (in) */
int stride; /*(out) */
int size; /*(out */
};
struct bc_buf_params2 {
int count; /*number of buffers (in) */
int width; /*buffer width in pixel, multiple of 32 (in) */
int height; /*buffer height in pixel (in) */
u32 pixel_fmt; /* V4L2 buffer pixel format (in) */
int stride; /*(in) */
int size; /*(out */
};
extern int bc_init(void);
extern void bc_cleanup(void);
/* bc_setup
*
* This API will validate the buffer parameters in order to setup a
* buffer class device. Buffers should be added with subsequent calls to
* bc_setup_buffer()
*/
extern int bc_setup(int id, struct bc_buf_params2 *p);
/* bc_setup_buffer
*
* Only called after a successful bc_setup(), add a physical buffer reference
* to this device
*/
extern int bc_setup_buffer(
int id, struct bc_buf_params2 *p, unsigned long *paddr);
/* bc_setup_complete
*
* Called after all physical buffers have been added to the device
*/
extern int bc_setup_complete(int id, struct bc_buf_params2 *p);
/* bc_sync_status
*
* Return the synchronization status of this devices buffer
*
* Return values:
* 0 SGX still has pending operations on the buffer
* 1 SGX done with the buffer
*/
extern int bc_sync_status(int id, int bufidx);
#endif
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