platform/a2000/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 
   7 long kbd_new_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
   8 long kbd_prev_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
   9 long kbd_mod_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
  10 
  11 #define NEW_SS (0x2000)
  12 
  13 extern void _GetKbdState(long *dst);
  14 
  15 int get_usb_bit() 
  16 {
  17         long usb_physw[3];
  18         usb_physw[USB_IDX] = 0;
  19         _kbd_read_keys_r2(usb_physw);
  20         return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK) ; 
  21 }
  22 
  23 static char kbd_stack[NEW_SS];
  24 
  25 KeyMap keymap[] = {
  26     /* tiny bug: key order matters. see kbd_get_pressed_key()
  27      * for example
  28      */
  29         { 2, KEY_UP             , 0x00000010 }, 
  30         { 2, KEY_DOWN           , 0x00000020 }, 
  31         { 2, KEY_LEFT           , 0x00000080 }, 
  32         { 2, KEY_RIGHT          , 0x00000040 }, 
  33         { 2, KEY_SET            , 0x00000100 }, 
  34         { 1, KEY_SHOOT_FULL     , 0xC0000000 },
  35     { 1, KEY_SHOOT_FULL_ONLY, 0x80000000 },
  36         { 1, KEY_SHOOT_HALF     , 0x40000000 }, 
  37         { 2, KEY_ZOOM_IN        , 0x00000004 }, 
  38         { 2, KEY_ZOOM_OUT       , 0x00000008 }, 
  39         { 2, KEY_MENU             , 0x00000200 }, 
  40         { 2, KEY_DISPLAY        , 0x00000400 }, 
  41         { 2, KEY_PRINT          , 0x00000800 }, 
  42         { 1, KEY_ERASE          , 0x00800000 },  // NOTE actually FACE, came does not have erase button
  43 //    { 1, KEY_POWER           ,0x00004000 }, // Found @0xffe75c5c, levent 0x600 (uses inverted logic in physw_status)
  44 //    TODO not enabled for now due to inverted logic
  45 //    { 1, KEY_PLAYBACK        ,0x02000000 }, // Found @0xffe75c80, levent 0x601 (uses inverted logic in physw_status)
  46         { 0, 0, 0 }
  47 };
  48 
  49 long __attribute__((naked)) wrap_kbd_p1_f() ;
  50 
  51 static void __attribute__((noinline)) mykbd_task_proceed()
  52 {
  53         while (physw_run){
  54                 _SleepTask(10);
  55                 if (wrap_kbd_p1_f() == 1){ // autorepeat ?
  56                         _kbd_p2_f();
  57                 }
  58         }
  59 }
  60 
  61 void __attribute__((naked,noinline)) mykbd_task()
  62 {
  63     /* WARNING
  64      * Stack pointer manipulation performed here!
  65      * This means (but not limited to):
  66      *  function arguments destroyed;
  67      *  function CAN NOT return properly;
  68      *  MUST NOT call or use stack variables before stack
  69      *  is setup properly;
  70      *
  71      */
  72 
  73         register int i;
  74         register long *newstack;
  75 
  76         newstack = (void*)kbd_stack;
  77 
  78         for (i=0;i<NEW_SS/4;i++)
  79                 newstack[i]=0xdededede;
  80 
  81         asm volatile (
  82                 "MOV    SP, %0"
  83                 :: "r"(((char*)newstack)+NEW_SS)
  84                 : "memory"
  85         );
  86 
  87         mykbd_task_proceed();
  88 
  89         /* function can be modified to restore SP here...
  90          */
  91 
  92         _ExitTask();
  93 }
  94 
  95 
  96 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
  97 {
  98 
  99         asm volatile(
 100                 "STMFD   SP!, {R1-R5,LR}\n"
 101                 "MOV     R4, #0\n"
 102                 "BL      my_kbd_read_keys\n"
 103                 "B       _kbd_p1_f_cont\n"
 104         );
 105         return 0; // shut up the compiler
 106 }
 107 
 108 
 109 void my_kbd_read_keys()
 110 {       
 111     kbd_update_key_state();
 112     kbd_update_physw_bits();
 113 }
 114 
 115 void kbd_fetch_data(long *dst) 
 116 {
 117     _kbd_pwr_on();
 118     _GetKbdState(dst);
 119     _kbd_read_keys_r2(dst);
 120     _kbd_pwr_off();
 121 }
 122
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root/platform/a2000/kbd.c

DEFINITIONS
