linux/drivers/media/platform/omap3isp/ispstat.h
Linus Torvalds d8c532c407 Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:

 - Missing MAINTAINERS entries were added for several drivers

 - Adds V4L2 support for DMABUF handling, allowing zero-copy buffer
   sharing between V4L2 devices and GPU

 - Got rid of all warnings when compiling with W=1 on x86

 - Add a new driver for Exynos hardware (s3c-camif)

 - Several bug fixes, cleanups and driver improvements

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (243 commits)
  [media] omap3isp: Replace cpu_is_omap3630() with ISP revision check
  [media] omap3isp: Prepare/unprepare clocks before/after enable/disable
  [media] omap3isp: preview: Add support for 8-bit formats at the sink pad
  [media] omap3isp: Replace printk with dev_*
  [media] omap3isp: Find source pad from external entity
  [media] omap3isp: Configure CSI-2 phy based on platform data
  [media] omap3isp: Add PHY routing configuration
  [media] omap3isp: Add CSI configuration registers from control block to ISP resources
  [media] omap3isp: Remove unneeded module memory address definitions
  [media] omap3isp: Use monotonic timestamps for statistics buffers
  [media] uvcvideo: Fix control value clamping for unsigned integer controls
  [media] uvcvideo: Mark first output terminal as default video node
  [media] uvcvideo: Add VIDIOC_[GS]_PRIORITY support
  [media] uvcvideo: Return -ENOTTY for unsupported ioctls
  [media] uvcvideo: Set device_caps in VIDIOC_QUERYCAP
  [media] uvcvideo: Don't fail when an unsupported format is requested
  [media] uvcvideo: Return -EACCES when trying to access a read/write-only control
  [media] uvcvideo: Set error_idx properly for extended controls API failures
  [media] rtl28xxu: add NOXON DAB/DAB+ USB dongle rev 2
  [media] fc2580: write some registers conditionally
  ...
2012-12-13 19:22:22 -08:00

170 lines
4.9 KiB
C

/*
* 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.
*
* 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_STAT_H
#define OMAP3_ISP_STAT_H
#include <linux/types.h>
#include <linux/omap3isp.h>
#include <linux/omap-dma.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 ispstat;
struct ispstat_buffer {
unsigned long iommu_addr;
struct iovm_struct *iovm;
void *virt_addr;
dma_addr_t dma_addr;
struct timespec 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 omap_dma_channel_params dma_config;
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;
int 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 */