platform/a480/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 extern void _platformsub_kbd_fetch_data(long*);
  11 
  12 int get_usb_bit() 
  13 {
  14         long usb_physw[3];
  15         usb_physw[USB_IDX] = 0;
  16         _kbd_read_keys_r2(usb_physw);
  17         return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK) ; 
  18 }
  19 
  20 #define NEW_SS (0x2000)
  21 
  22 static char kbd_stack[NEW_SS];
  23 
  24 KeyMap keymap[] = {
  25         /* tiny bug: key order matters. see kbd_get_pressed_key()
  26          * for example
  27          */
  28 
  29     { 0, KEY_DISPLAY    , 0x00020000 },   // playback key
  30 
  31     { 2, KEY_SHOOT_FULL , 0x00000030 },
  32     { 2, KEY_SHOOT_FULL_ONLY, 0x00000020 },
  33     { 2, KEY_SHOOT_HALF , 0x00000010 },
  34     { 2, KEY_UP         , 0x00000001 },
  35     { 2, KEY_DOWN               , 0x00000002 },
  36     { 2, KEY_LEFT               , 0x00000008 },
  37     { 2, KEY_RIGHT              , 0x00000004 },
  38     { 2, KEY_SET                , 0x00000100 },
  39     { 2, KEY_ZOOM_IN    , 0x00000080 },
  40     { 2, KEY_ZOOM_OUT   , 0x00000040 },
  41     { 2, KEY_MENU               , 0x00000400 },
  42     { 2, KEY_PRINT              , 0x00000800 },   // mode key
  43     { 0, 0, 0 }
  44 };
  45 
  46 
  47 long __attribute__((naked)) wrap_kbd_p1_f() ;
  48 
  49 
  50 static void __attribute__((noinline)) mykbd_task_proceed()
  51 {
  52         while (physw_run){
  53                 _SleepTask(10);
  54                 
  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 
 113     _kbd_read_keys_r2(physw_status);
 114 
 115     kbd_update_physw_bits();
 116 }
 117 
 118 void kbd_fetch_data(long *dst)
 119 {
 120     _platformsub_kbd_fetch_data(dst);
 121 }
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root/platform/a480/kbd.c

DEFINITIONS
