platform/s3is/kbd.c

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This source file includes following definitions.
get_usb_bit
mykbd_task_proceed
mykbd_task
wrap_kbd_p1_f
my_kbd_read_keys
kbd_fetch_data
   1 #include "lolevel.h"
   2 #include "platform.h"
   3 #include "keyboard.h"
   4 #include "kbd_common.h"
   5 
   6 long kbd_new_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
   7 long kbd_prev_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
   8 long kbd_mod_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
   9 
  10 KeyMap keymap[] = {
  11     /* tiny bug: key order matters. see kbd_get_pressed_key()
  12      * for example
  13     */
  14     { 1, KEY_UP             , 0x00020000 },
  15     { 1, KEY_DOWN           , 0x00080000 },
  16     { 1, KEY_LEFT           , 0x00010000 },
  17     { 1, KEY_RIGHT          , 0x00040000 },
  18     { 1, KEY_SET            , 0x00100000 },
  19     { 0, KEY_SHOOT_FULL     , 0x00000003 },
  20     { 0, KEY_SHOOT_FULL_ONLY, 0x00000002 },
  21     { 0, KEY_SHOOT_HALF     , 0x00000001 },
  22     { 1, KEY_ZOOM_IN        , 0x10000000 },
  23     { 1, KEY_ZOOM_IN        , 0x18000000 },
  24     { 1, KEY_ZOOM_OUT       , 0x01000000 },
  25     { 1, KEY_ZOOM_OUT       , 0x05000000 },
  26     { 1, KEY_MENU           , 0x00200000 },
  27     { 1, KEY_DISPLAY        , 0x00002000 },
  28     { 1, KEY_PRINT          , 0x00004000 },
  29     { 1, KEY_ERASE          , 0x00400000 },
  30     { 1, KEY_ISO            , 0x00001000 },
  31     { 1, KEY_FLASH          , 0x00000008 },
  32     { 1, KEY_MF             , 0x00000010 },
  33     { 1, KEY_MACRO          , 0x00000020 },
  34     { 1, KEY_VIDEO          , 0x40000000 },
  35     { 1, KEY_TIMER          , 0x02000000 },
  36     { 0, 0, 0 }
  37 };
  38 
  39 
  40 #define NEW_SS (0x2000)
  41 
  42 int get_usb_bit() 
  43 {
  44         long usb_physw[3];
  45         usb_physw[USB_IDX] = 0;
  46         _kbd_read_keys_r2(usb_physw);
  47         return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK) ; 
  48 }
  49 
  50 static char kbd_stack[NEW_SS];
  51 
  52 extern void _platformsub_kbd_fetch_data(long*);
  53 long __attribute__((naked)) wrap_kbd_p1_f() ;
  54 
  55 
  56 static void __attribute__((noinline)) mykbd_task_proceed()
  57 {
  58     while (physw_run){
  59         _SleepTask(10);
  60 
  61         if (wrap_kbd_p1_f() == 1){ // autorepeat ?
  62             _kbd_p2_f();
  63         }
  64     }
  65 }
  66 
  67 void __attribute__((naked,noinline))
  68 mykbd_task(long ua, long ub, long uc, long ud, long ue, long uf)
  69 {
  70     (void)ua; (void)ub; (void)uc; (void)ud; (void)ue; (void)uf;
  71     /* WARNING
  72      * Stack pointer manipulation performed here!
  73      * This means (but not limited to):
  74      *  function arguments destroyed;
  75      *  function CAN NOT return properly;
  76      *  MUST NOT call or use stack variables before stack
  77      *  is setup properly;
  78      *
  79      */
  80 
  81     register int i;
  82     register long *newstack;
  83 
  84     newstack = (void*)kbd_stack;
  85 
  86     for (i=0;i<NEW_SS/4;i++)
  87         newstack[i]=0xdededede;
  88 
  89     asm volatile (
  90         "MOV    SP, %0"
  91         :: "r"(((char*)newstack)+NEW_SS)
  92         : "memory"
  93     );
  94 
  95     mykbd_task_proceed();
  96 
  97     /* function can be modified to restore SP here...
  98      */
  99 
 100     _ExitTask();
 101 }
 102 
 103 
 104 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
 105 {
 106 
 107     asm volatile(
 108                 "STMFD   SP!, {R4-R7,LR}\n"
 109                 "SUB     SP, SP, #0xC\n"
 110                 "BL      my_kbd_read_keys\n"
 111                 "B       _kbd_p1_f_cont\n"
 112     );
 113     return 0; // shut up the compiler
 114 }
 115 
 116 
 117 void my_kbd_read_keys()
 118 {
 119     kbd_update_key_state();
 120 
 121     _kbd_read_keys_r2(physw_status);
 122 
 123     kbd_update_physw_bits();
 124 }
 125 
 126 void kbd_fetch_data(long *dst)
 127 {
 128     _platformsub_kbd_fetch_data(dst);
 129 }
 130
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root/platform/s3is/kbd.c

DEFINITIONS
