platform/a1100/kbd.c

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This source file includes following definitions.
get_usb_bit
mykbd_task_proceed
mykbd_task
wrap_kbd_p1_f
kbd_fetch_data
my_kbd_read_keys
   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 #define NEW_SS          (0x2000)
  13 
  14 int get_usb_bit() 
  15 {
  16         long usb_physw[3];
  17         usb_physw[USB_IDX] = 0;
  18         _kbd_read_keys_r2(usb_physw);
  19         return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK) ; 
  20 }
  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     { 2, KEY_ZOOM_IN    , 0x00000040 },
  30     { 2, KEY_ZOOM_OUT   , 0x00000080 },
  31     { 2, KEY_SHOOT_FULL , 0x00000030 },
  32     { 2, KEY_SHOOT_FULL_ONLY, 0x00000020 },
  33     { 2, KEY_SHOOT_HALF , 0x00000010 },
  34     { 1, KEY_UP         , 0x00000100 },
  35     { 1, KEY_DOWN       , 0x00000200 },
  36     { 1, KEY_LEFT       , 0x00000800 },
  37     { 1, KEY_RIGHT      , 0x00000400 },
  38     { 1, KEY_SET        , 0x00001000 },
  39     { 1, KEY_DISPLAY    , 0x00004000 },
  40     { 1, KEY_MENU       , 0x00002000 },
  41     { 1, KEY_PRINT      , 0x00008000 },
  42     { 0, 0, 0 }
  43 };
  44 
  45 
  46 long __attribute__((naked)) wrap_kbd_p1_f() ;
  47 
  48 static void __attribute__((noinline)) mykbd_task_proceed()
  49 {
  50         while (physw_run){
  51                 _SleepTask(10);
  52                 
  53                 if (wrap_kbd_p1_f() == 1){ // autorepeat ?
  54                         _kbd_p2_f();
  55                 }
  56         }
  57 }
  58 
  59 void __attribute__((naked,noinline)) mykbd_task()
  60 {
  61     /* WARNING
  62      * Stack pointer manipulation performed here!
  63      * This means (but not limited to):
  64      *  function arguments destroyed;
  65      *  function CAN NOT return properly;
  66      *  MUST NOT call or use stack variables before stack
  67      *  is setup properly;
  68      *
  69      */
  70 
  71         register int i;
  72         register long *newstack;
  73 
  74         newstack = (void*)kbd_stack;
  75 
  76         for (i=0;i<NEW_SS/4;i++)
  77                 newstack[i]=0xdededede;
  78 
  79         asm volatile (
  80                 "MOV    SP, %0"
  81                 :: "r"(((char*)newstack)+NEW_SS)
  82                 : "memory"
  83         );
  84 
  85         mykbd_task_proceed();
  86 
  87         /* function can be modified to restore SP here...
  88          */
  89 
  90         _ExitTask();
  91 }
  92 
  93 
  94 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
  95 {
  96 
  97     asm volatile(
  98         "STMFD   SP!, {R1-R5,LR}\n"
  99         "MOV     R4, #0\n"
 100         "BL      my_kbd_read_keys\n"
 101         "B       _kbd_p1_f_cont\n"
 102     );
 103     return 0; // shut up the compiler
 104 }
 105 
 106 void kbd_fetch_data(long *dst)
 107 {
 108     volatile long *mmio0 = (void*)0xc0220200;
 109     volatile long *mmio1 = (void*)0xc0220204;
 110     volatile long *mmio2 = (void*)0xc0220208;
 111 
 112     dst[0] = *mmio0;
 113     dst[1] = *mmio1;
 114     dst[2] = *mmio2 & 0xffff;
 115 }
 116 
 117 void my_kbd_read_keys()
 118 {
 119     _kbd_pwr_on();
 120 
 121     kbd_update_key_state();
 122 
 123     _kbd_read_keys_r2(physw_status);
 124 
 125     kbd_update_physw_bits();
 126 
 127     _kbd_pwr_off();
 128 }
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root/platform/a1100/kbd.c

DEFINITIONS
