root/platform/a720/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 },
  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           , 0x00000400 }, 
  25         { 2, KEY_DISPLAY        , 0x00000200 }, 
  26         { 2, KEY_PRINT          , 0x00000800 }, 
  27         { 1, KEY_ERASE          , 0x00800000 }, 
  28         { 0, 0, 0 }
  29 };
  30 
  31 #define NEW_SS (0x2000)
  32 
  33 int get_usb_bit() 
  34 {
  35         long usb_physw[3];
  36         usb_physw[USB_IDX] = 0;
  37         _kbd_read_keys_r2(usb_physw);
  38         return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK) ; 
  39 }
  40 
  41 static char kbd_stack[NEW_SS];
  42 
  43 void kbd_fetch_data(long*);
  44 
  45 long __attribute__((naked)) wrap_kbd_p1_f() ;
  46 
  47 static void __attribute__((noinline)) mykbd_task_proceed()
  48 {
  49     while (physw_run){ 
  50         _SleepTask(10);
  51 
  52         if (wrap_kbd_p1_f() == 1){ // autorepeat ?
  53             _kbd_p2_f();
  54         }
  55     }
  56 }
  57 
  58 void __attribute__((naked,noinline))
  59 mykbd_task(long ua, long ub, long uc, long ud, long ue, long uf)
  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 
 107 void my_kbd_read_keys()
 108 {
 109     _kbd_pwr_on();
 110 
 111     kbd_update_key_state();
 112 
 113     _kbd_read_keys_r2(physw_status);
 114 
 115     kbd_update_physw_bits();
 116 
 117     _kbd_pwr_off();
 118 }
 119 
 120 
 121 void kbd_fetch_data(long *dst)
 122 {
 123     volatile long *mmio0 = (void*)0xc0220200;
 124     volatile long *mmio1 = (void*)0xc0220204;
 125     volatile long *mmio2 = (void*)0xc0220208;
 126 
 127     dst[0] = *mmio0;
 128     dst[1] = *mmio1;
 129     dst[2] = *mmio2 & 0xffff;
 130 }
 131 
 132 

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