root/platform/a570/kbd.c

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DEFINITIONS

This source file includes following definitions.
  1. get_usb_bit
  2. mykbd_task_proceed
  3. mykbd_task
  4. wrap_kbd_p1_f
  5. my_kbd_read_keys
  6. 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         {2, KEY_UP      , 0x00000010 },
  15         {2, KEY_DOWN    , 0x00000020 },
  16         {2, KEY_LEFT    , 0x00000080 },
  17         {2, KEY_RIGHT   , 0x00000040 },
  18         {2, KEY_SET     , 0x00000100 },
  19         {1, KEY_SHOOT_FULL, 0xC0000000 }, // note 3 here!
  20     {1, KEY_SHOOT_FULL_ONLY, 0x80000000 },
  21         {1, KEY_SHOOT_HALF, 0x40000000 },
  22         {2, KEY_ZOOM_IN , 0x00000004 },
  23         {2, KEY_ZOOM_OUT        , 0x00000008 },
  24         {2, KEY_MENU    , 0x00000200 },
  25         {2, KEY_DISPLAY , 0x000000400 },
  26         {2, KEY_PRINT   , 0x00000800},
  27         {1, KEY_ERASE   , 0x00800000 },
  28         {0, 0, 0 }
  29 };
  30 
  31 int get_usb_bit() 
  32 {
  33         long usb_physw[3];
  34         usb_physw[USB_IDX] = 0;
  35         _kbd_read_keys_r2(usb_physw);
  36         return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK) ; 
  37 }
  38 
  39 
  40 #define NEW_SS (0x2000)
  41 static char kbd_stack[NEW_SS];
  42 
  43 long __attribute__((naked)) wrap_kbd_p1_f() ;
  44 
  45 static void __attribute__((noinline)) mykbd_task_proceed()
  46 {
  47     while (physw_run){
  48         _SleepTask(10);
  49 
  50         if (wrap_kbd_p1_f() == 1){ // autorepeat ?
  51             _kbd_p2_f();
  52         }
  53     }
  54 }
  55 
  56 void __attribute__((naked,noinline)) mykbd_task(long ua, long ub, long uc, long ud, long ue, long uf)
  57 {
  58     /* WARNING
  59      * Stack pointer manipulation performed here!
  60      * This means (but not limited to):
  61      *  function arguments destroyed;
  62      *  function CAN NOT return properly;
  63      *  MUST NOT call or use stack variables before stack
  64      *  is setup properly;
  65      *
  66      */
  67 
  68     register int i;
  69     register long *newstack;
  70 
  71     newstack = (void*)kbd_stack;
  72 
  73     for (i=0;i<NEW_SS/4;i++)
  74         newstack[i]=0xdededede;
  75 
  76     asm volatile (
  77         "MOV    SP, %0"
  78         :: "r"(((char*)newstack)+NEW_SS)
  79         : "memory"
  80     );
  81 
  82     mykbd_task_proceed();
  83 
  84     /* function can be modified to restore SP here...
  85      */
  86 
  87     _ExitTask();
  88 }
  89 
  90 
  91 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
  92 {
  93 
  94     asm volatile(
  95                 "STMFD   SP!, {R4-R7,LR}\n"
  96                 "SUB     SP, SP, #0xC\n"
  97                 "BL      my_kbd_read_keys\n"
  98                 "B       _kbd_p1_f_cont\n"
  99     );
 100     return 0; // shut up the compiler
 101 }
 102 
 103 
 104 void my_kbd_read_keys()
 105 {
 106     _kbd_pwr_on();
 107 
 108     kbd_update_key_state();
 109 
 110     _kbd_read_keys_r2(physw_status);
 111 
 112     kbd_update_physw_bits();
 113 
 114     _kbd_pwr_off();
 115 }
 116 
 117 
 118 
 119 void kbd_fetch_data(long *dst)
 120 {
 121     volatile long *mmio0 = (void*)0xc0220200;
 122     volatile long *mmio1 = (void*)0xc0220204;
 123     volatile long *mmio2 = (void*)0xc0220208;
 124 
 125     dst[0] = *mmio0;
 126     dst[1] = *mmio1;
 127     dst[2] = *mmio2 & 0xffff;
 128 }

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