203 lines
6.1 KiB
C
203 lines
6.1 KiB
C
/*
|
|
* ispvideo.h
|
|
*
|
|
* TI OMAP3 ISP - Generic video node
|
|
*
|
|
* Copyright (C) 2009-2010 Nokia Corporation
|
|
*
|
|
* Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
* Sakari Ailus <sakari.ailus@iki.fi>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* 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., 51 Franklin St, Fifth Floor, Boston, MA
|
|
* 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef OMAP3_ISP_VIDEO_H
|
|
#define OMAP3_ISP_VIDEO_H
|
|
|
|
#include <linux/v4l2-mediabus.h>
|
|
#include <linux/version.h>
|
|
#include <media/media-entity.h>
|
|
#include <media/v4l2-dev.h>
|
|
#include <media/v4l2-fh.h>
|
|
|
|
#include "ispqueue.h"
|
|
|
|
#define ISP_VIDEO_DRIVER_NAME "ispvideo"
|
|
#define ISP_VIDEO_DRIVER_VERSION KERNEL_VERSION(0, 0, 1)
|
|
|
|
struct isp_device;
|
|
struct isp_video;
|
|
struct v4l2_mbus_framefmt;
|
|
struct v4l2_pix_format;
|
|
|
|
/*
|
|
* struct isp_format_info - ISP media bus format information
|
|
* @code: V4L2 media bus format code
|
|
* @truncated: V4L2 media bus format code for the same format truncated to 10
|
|
* bits. Identical to @code if the format is 10 bits wide or less.
|
|
* @uncompressed: V4L2 media bus format code for the corresponding uncompressed
|
|
* format. Identical to @code if the format is not DPCM compressed.
|
|
* @pixelformat: V4L2 pixel format FCC identifier
|
|
* @bpp: Bits per pixel
|
|
*/
|
|
struct isp_format_info {
|
|
enum v4l2_mbus_pixelcode code;
|
|
enum v4l2_mbus_pixelcode truncated;
|
|
enum v4l2_mbus_pixelcode uncompressed;
|
|
u32 pixelformat;
|
|
unsigned int bpp;
|
|
};
|
|
|
|
enum isp_pipeline_stream_state {
|
|
ISP_PIPELINE_STREAM_STOPPED = 0,
|
|
ISP_PIPELINE_STREAM_CONTINUOUS = 1,
|
|
ISP_PIPELINE_STREAM_SINGLESHOT = 2,
|
|
};
|
|
|
|
enum isp_pipeline_state {
|
|
/* The stream has been started on the input video node. */
|
|
ISP_PIPELINE_STREAM_INPUT = 1,
|
|
/* The stream has been started on the output video node. */
|
|
ISP_PIPELINE_STREAM_OUTPUT = 2,
|
|
/* At least one buffer is queued on the input video node. */
|
|
ISP_PIPELINE_QUEUE_INPUT = 4,
|
|
/* At least one buffer is queued on the output video node. */
|
|
ISP_PIPELINE_QUEUE_OUTPUT = 8,
|
|
/* The input entity is idle, ready to be started. */
|
|
ISP_PIPELINE_IDLE_INPUT = 16,
|
|
/* The output entity is idle, ready to be started. */
|
|
ISP_PIPELINE_IDLE_OUTPUT = 32,
|
|
/* The pipeline is currently streaming. */
|
|
ISP_PIPELINE_STREAM = 64,
|
|
};
|
|
|
|
struct isp_pipeline {
|
|
struct media_pipeline pipe;
|
|
spinlock_t lock; /* Pipeline state and queue flags */
|
|
unsigned int state;
|
|
enum isp_pipeline_stream_state stream_state;
|
|
struct isp_video *input;
|
|
struct isp_video *output;
|
|
unsigned long l3_ick;
|
|
unsigned int max_rate;
|
|
atomic_t frame_number;
|
|
bool do_propagation; /* of frame number */
|
|
struct v4l2_fract max_timeperframe;
|
|
};
|
|
|
|
#define to_isp_pipeline(__e) \
|
|
container_of((__e)->pipe, struct isp_pipeline, pipe)
|
|
|
|
static inline int isp_pipeline_ready(struct isp_pipeline *pipe)
|
|
{
|
|
return pipe->state == (ISP_PIPELINE_STREAM_INPUT |
|
|
ISP_PIPELINE_STREAM_OUTPUT |
|
|
ISP_PIPELINE_QUEUE_INPUT |
|
|
ISP_PIPELINE_QUEUE_OUTPUT |
|
|
ISP_PIPELINE_IDLE_INPUT |
|
|
ISP_PIPELINE_IDLE_OUTPUT);
|
|
}
|
|
|
|
/*
|
|
* struct isp_buffer - ISP buffer
|
|
* @buffer: ISP video buffer
|
|
* @isp_addr: MMU mapped address (a.k.a. device address) of the buffer.
|
|
*/
|
|
struct isp_buffer {
|
|
struct isp_video_buffer buffer;
|
|
dma_addr_t isp_addr;
|
|
};
|
|
|
|
#define to_isp_buffer(buf) container_of(buf, struct isp_buffer, buffer)
|
|
|
|
enum isp_video_dmaqueue_flags {
|
|
/* Set if DMA queue becomes empty when ISP_PIPELINE_STREAM_CONTINUOUS */
|
|
ISP_VIDEO_DMAQUEUE_UNDERRUN = (1 << 0),
|
|
/* Set when queuing buffer to an empty DMA queue */
|
|
ISP_VIDEO_DMAQUEUE_QUEUED = (1 << 1),
|
|
};
|
|
|
|
#define isp_video_dmaqueue_flags_clr(video) \
|
|
({ (video)->dmaqueue_flags = 0; })
|
|
|
|
/*
|
|
* struct isp_video_operations - ISP video operations
|
|
* @queue: Resume streaming when a buffer is queued. Called on VIDIOC_QBUF
|
|
* if there was no buffer previously queued.
|
|
*/
|
|
struct isp_video_operations {
|
|
int(*queue)(struct isp_video *video, struct isp_buffer *buffer);
|
|
};
|
|
|
|
struct isp_video {
|
|
struct video_device video;
|
|
enum v4l2_buf_type type;
|
|
struct media_pad pad;
|
|
|
|
struct mutex mutex; /* format and crop settings */
|
|
atomic_t active;
|
|
|
|
struct isp_device *isp;
|
|
|
|
unsigned int capture_mem;
|
|
unsigned int bpl_alignment; /* alignment value */
|
|
unsigned int bpl_zero_padding; /* whether the alignment is optional */
|
|
unsigned int bpl_max; /* maximum bytes per line value */
|
|
unsigned int bpl_value; /* bytes per line value */
|
|
unsigned int bpl_padding; /* padding at end of line */
|
|
|
|
/* Entity video node streaming */
|
|
unsigned int streaming:1;
|
|
|
|
/* Pipeline state */
|
|
struct isp_pipeline pipe;
|
|
struct mutex stream_lock; /* pipeline and stream states */
|
|
|
|
/* Video buffers queue */
|
|
struct isp_video_queue *queue;
|
|
struct list_head dmaqueue;
|
|
enum isp_video_dmaqueue_flags dmaqueue_flags;
|
|
|
|
const struct isp_video_operations *ops;
|
|
};
|
|
|
|
#define to_isp_video(vdev) container_of(vdev, struct isp_video, video)
|
|
|
|
struct isp_video_fh {
|
|
struct v4l2_fh vfh;
|
|
struct isp_video *video;
|
|
struct isp_video_queue queue;
|
|
struct v4l2_format format;
|
|
struct v4l2_fract timeperframe;
|
|
};
|
|
|
|
#define to_isp_video_fh(fh) container_of(fh, struct isp_video_fh, vfh)
|
|
#define isp_video_queue_to_isp_video_fh(q) \
|
|
container_of(q, struct isp_video_fh, queue)
|
|
|
|
int omap3isp_video_init(struct isp_video *video, const char *name);
|
|
int omap3isp_video_register(struct isp_video *video,
|
|
struct v4l2_device *vdev);
|
|
void omap3isp_video_unregister(struct isp_video *video);
|
|
struct isp_buffer *omap3isp_video_buffer_next(struct isp_video *video,
|
|
unsigned int error);
|
|
void omap3isp_video_resume(struct isp_video *video, int continuous);
|
|
struct media_pad *omap3isp_video_remote_pad(struct isp_video *video);
|
|
|
|
const struct isp_format_info *
|
|
omap3isp_video_format_info(enum v4l2_mbus_pixelcode code);
|
|
|
|
#endif /* OMAP3_ISP_VIDEO_H */
|