os/linux-2.6-tag--devboard-R2_10-4/include/asm-cris/elphel/autoexp.h

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#ifndef __H_AUTOEXP__
#define __H_AUTOEXP__

#define AUTOEXP_DEV_NAME        "/dev/autoexp"

#define TABLES_LEN      8192

#define OFFSET_HIST_C   (4096 + 256 * 6 * 2)
#define OFFSET_GAMMA_C  (OFFSET_HIST_C + 4)

#define IOC_AUTOEXP_SET                 0x01
#define IOC_AUTOEXP_GET                 0x02
#define IOC_AUTOEXP_GET_LOG             0x03
#define IOC_AUTOEXP_GAMMA_TABLE 0x10

#ifndef HIST_NOT_CHANGE
#define HIST_NOT_CHANGE 0xFFFF
#endif
#if 0
struct autoexp_t {
        unsigned long on;
        /*
         * in percents: 1 == 1, 100 == 100
         */
        unsigned long width;
        unsigned long height;
        unsigned long left;
        unsigned long top;
        /*
         * start exposure time really not needed...
         */
        unsigned long exp_max;          /* 100 usec == 1 etc... */
        unsigned long overexp_max;      /* percentages for overexposured pixels - 1% == 100, 5% == 500, 0.02% == 2 etc... */
        /*
         * changed chema - balance exposition for set percent of pixels in needed index
         */
        unsigned long s_percent;
        unsigned long s_index;
        /*
         * return current state
         */
        unsigned long exp;
        /*
         * "sleep" settings
         */
        unsigned long skip_pmin;        /* percent of delta for skip changes: 1% == 100 */
        unsigned long skip_pmax;        /* percent of changes for wait one frame before apply changes: 1% == 100 */
        unsigned long skip_t;           /* time for skip changes: 100 usec == 1 */
};
#endif
#define LOG_C   200
//#define LOG_C 11

struct autoexp_log_t {
        unsigned long tv_sec;           /* time of log (fill in driver) */
        unsigned long tv_usec;
        unsigned long s_index;          /* requested in settings index */
        unsigned long s_percent;        /* requested percent for s_index */
        unsigned long n_index;          /* searched new index with needed percent - if 0 - index not searched, and use linear scale */
        unsigned long n_percent;        /* percent in searched index */
        unsigned long t_scale;          /* scale of exposition - in FFFF.FFFF fixed point format */
        unsigned long t_value;          /* new time, requested for sensor - w/o real correction, in 0.1ms scale (1ms == 10 etc...) */
};      /* 8 * 4 == 32 bytes in record... */

#endif  // __H_AUTOEXP__

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