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/*
* 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>
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# include <linux/omap-dma.h>
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# 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 {
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const struct sg_table * sgt ;
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void * virt_addr ;
dma_addr_t dma_addr ;
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struct timespec ts ;
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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 :
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* - omap3isp_h3a_aewb_config
* - omap3isp_h3a_af_config
* - omap3isp_hist_config
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*/
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 ) ;
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void omap3isp_stat_cleanup ( struct ispstat * stat ) ;
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int omap3isp_stat_subscribe_event ( struct v4l2_subdev * subdev ,
struct v4l2_fh * fh ,
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struct v4l2_event_subscription * sub ) ;
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int omap3isp_stat_unsubscribe_event ( struct v4l2_subdev * subdev ,
struct v4l2_fh * fh ,
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struct v4l2_event_subscription * sub ) ;
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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 */
