keyboard.h

这是一个基于S3C2440 的VGA 驱动程序, 其中fc.c 是驱动程序,fc_test.c 是测试代码. 这是一个在LINUX frame buffer基础上利用 DMA 实现的高效驱动, 绝

#define BUF_LEN 80
#define POOL_LEN 10
#define SCAN_INTERVAL 2

#define KBBASE     0x08000000
#define KBSIZE     0x158
#define KH_OFFSET  0x10
#define KV_OFFSET  0x08
#define KL_OFFSET  0x14
#define KWV_OFFSET 0x18
#define TRH_OFFSET 0x18



#define KH_SIZE    0x07
#define KV_SIZE    0x07

#define KEY_FFW    42     //fast forward
#define KEY_FBW    41     //fast backward
#define KEY_STOP   43     // stop
#define KEY_BWD    47     // backward
#define KEY_FWD    51     // foreward
#define KEY_PLS    52     // play back step-by-step
#define KEY_SET    44     //
#define KEY_CAP    45     //Snap shoot
#define KEY_ALT    46     // Camera ID alternate switch
#define KEY_BMK    53     // Book mark
#define KEY_TRN    54     //Transfer selected camera to associated workstation
#define KEY_INS    55     //instant play back
#define KEY_MON    11     
#define KEY_SITE   12
#define KEY_USER   13
#define KEY_SHOW   14
#define KEY_CAM    21
#define KEY_ON     22
#define KEY_OFF    23
#define KEY_ESC    24
#define KEY_PREV   31
#define KEY_NEXT   32
#define KEY_SEQ    33
#define KEY_CLR    34
#define KEY_NUM1   15
#define KEY_NUM2   16
#define KEY_NUM3   17
#define KEY_NUM0   56
#define KEY_NUM4   25
#define KEY_NUM5   26
#define KEY_NUM6   27
#define KEY_NUM7   35
#define KEY_NUM8   36
#define KEY_NUM9   37
#define KEY_ENT    57
#define KEY_LU1    61
#define KEY_LU2    62
#define KEY_LU3    63
#define KEY_LU4    64
#define KEY_LU5    65
#define KEY_LU6    66
#define KEY_RU1    71
#define KEY_RU2    72
#define KEY_RU3    73
#define KEY_RU4    74
#define KEY_RU5    75
#define KEY_RU6    76

#define KB_IOC_MAGIC 'K'

#define KB_IOC_GET_LAST_HIT_SIMPLE _IOR(KB_IOC_MAGIC, 1, int)
#define KB_IOC_GET_LAST_HIT_ALL    _IOR(KB_IOC_MAGIC, 2, int)
#define KB_IOC_GET_ALL_HIT         _IOR(KB_IOC_MAGIC, 3, int)
#define KB_IOC_GET_AND_CLEAN_ALL   _IOR(KB_IOC_MAGIC, 4, int)
#define KB_IOC_CLEAN_ALL           _IOR(KB_IOC_MAGIC, 5, int)


struct kb_bitfield {
        int kscanno;
        int tlapse;
        int continuous_times;
        int thold;
};

struct k_entry {
        struct kb_bitfield kfield;
        int previous;
        int next;
};