Release 4.11 drivers/media/platform/omap3isp/ispstat.h

/*
 * ispstat.h
 *
 * TI OMAP3 ISP - Statistics core
 *
 * Copyright (C) 2010 Nokia Corporation
 * Copyright (C) 2009 Texas Instruments, Inc
 *
 * Contacts: David Cohen <dacohen@gmail.com>
 *           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.
 */

#ifndef OMAP3_ISP_STAT_H

#define OMAP3_ISP_STAT_H

#include <linux/types.h>
#include <linux/omap3isp.h>
#include <media/v4l2-event.h>

#include "isp.h"
#include "ispvideo.h"


#define STAT_MAX_BUFS		5

#define STAT_NEVENTS		8


#define STAT_BUF_DONE		0	
/* Buffer is ready */

#define STAT_NO_BUF		1	
/* An error has occurred */

#define STAT_BUF_WAITING_DMA	2	
/* Histogram only: DMA is running */

struct dma_chan;
struct ispstat;


struct ispstat_buffer {
	
struct sg_table sgt;
	
void *virt_addr;
	
dma_addr_t dma_addr;
	
struct timeval ts;
	
u32 buf_size;
	
u32 frame_number;
	
u16 config_counter;
	
u8 empty;
};


struct ispstat_ops {
	/*
         * Validate new params configuration.
         * new_conf->buf_size value must be changed to the exact buffer size
         * necessary for the new configuration if it's smaller.
         */
	
int (*validate_params)(struct ispstat *stat, void *new_conf);

	/*
         * Save new params configuration.
         * stat->priv->buf_size value must be set to the exact buffer size for
         * the new configuration.
         * stat->update is set to 1 if new configuration is different than
         * current one.
         */
	
void (*set_params)(struct ispstat *stat, void *new_conf);

	/* Apply stored configuration. */
	
void (*setup_regs)(struct ispstat *stat, void *priv);

	/* Enable/Disable module. */
	
void (*enable)(struct ispstat *stat, int enable);

	/* Verify is module is busy. */
	
int (*busy)(struct ispstat *stat);

	/* Used for specific operations during generic buf process task. */
	
int (*buf_process)(struct ispstat *stat);
};


enum ispstat_state_t {
	
ISPSTAT_DISABLED = 0,
	
ISPSTAT_DISABLING,
	
ISPSTAT_ENABLED,
	
ISPSTAT_ENABLING,
	
ISPSTAT_SUSPENDED,
};


struct ispstat {
	
struct v4l2_subdev subdev;
	
struct media_pad pad;	/* sink pad */

	/* Control */
	
unsigned configured:1;
	
unsigned update:1;
	
unsigned buf_processing:1;
	
unsigned sbl_ovl_recover:1;
	
u8 inc_config;
	
atomic_t buf_err;
	
enum ispstat_state_t state;	/* enabling/disabling state */
	
struct isp_device *isp;
	
void *priv;		/* pointer to priv config struct */
	
void *recover_priv;	/* pointer to recover priv configuration */
	
struct mutex ioctl_lock; /* serialize private ioctl */

	
const struct ispstat_ops *ops;

	/* Buffer */
	
u8 wait_acc_frames;
	
u16 config_counter;
	
u32 frame_number;
	
u32 buf_size;
	
u32 buf_alloc_size;
	
struct dma_chan *dma_ch;
	
unsigned long event_type;
	
struct ispstat_buffer *buf;
	
struct ispstat_buffer *active_buf;
	
struct ispstat_buffer *locked_buf;
};


struct ispstat_generic_config {
	/*
         * Fields must be in the same order as in:
         *  - omap3isp_h3a_aewb_config
         *  - omap3isp_h3a_af_config
         *  - omap3isp_hist_config
         */
	
u32 buf_size;
	
u16 config_counter;
};

int omap3isp_stat_config(struct ispstat *stat, void *new_conf);
int omap3isp_stat_request_statistics(struct ispstat *stat,
				     struct omap3isp_stat_data *data);
int omap3isp_stat_init(struct ispstat *stat, const char *name,
		       const struct v4l2_subdev_ops *sd_ops);
void omap3isp_stat_cleanup(struct ispstat *stat);
int omap3isp_stat_subscribe_event(struct v4l2_subdev *subdev,
				  struct v4l2_fh *fh,
				  struct v4l2_event_subscription *sub);
int omap3isp_stat_unsubscribe_event(struct v4l2_subdev *subdev,
				    struct v4l2_fh *fh,
				    struct v4l2_event_subscription *sub);
int omap3isp_stat_s_stream(struct v4l2_subdev *subdev, int enable);

int omap3isp_stat_busy(struct ispstat *stat);
int omap3isp_stat_pcr_busy(struct ispstat *stat);
void omap3isp_stat_suspend(struct ispstat *stat);
void omap3isp_stat_resume(struct ispstat *stat);
int omap3isp_stat_enable(struct ispstat *stat, u8 enable);
void omap3isp_stat_sbl_overflow(struct ispstat *stat);
void omap3isp_stat_isr(struct ispstat *stat);
void omap3isp_stat_isr_frame_sync(struct ispstat *stat);
void omap3isp_stat_dma_isr(struct ispstat *stat);
int omap3isp_stat_register_entities(struct ispstat *stat,
				    struct v4l2_device *vdev);
void omap3isp_stat_unregister_entities(struct ispstat *stat);

#endif /* OMAP3_ISP_STAT_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
David Cohen
526
97.95%
2
28.57%
Laurent Pinchart
10
1.86%
4
57.14%
Arnd Bergmann
1
0.19%
1
14.29%
Total
537
100.00%
7
100.00%
Directory: drivers/media/platform/omap3isp

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