root/platform/a550/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,                 0x00000001 },//4057FE
  15     {2, KEY_DOWN,               0x00000002 },//4057FD
  16     {2, KEY_LEFT,               0x00000008 }, //4057F7
  17     {2, KEY_RIGHT,              0x00000004 }, //4057FB
  18     {2, KEY_SET,                0x00000100 }, //4056FF
  19     {2, KEY_SHOOT_FULL,         0x00000030 }, // 4057CF note 3 here!
  20     {2, KEY_SHOOT_FULL_ONLY,    0x00000020 },
  21     {2, KEY_SHOOT_HALF,         0x00000010 }, //4057EF
  22     {2, KEY_ZOOM_IN,            0x00000040 }, //4057BF
  23     {2, KEY_ZOOM_OUT,           0x00000080 }, //40577F
  24     {2, KEY_MENU,               0x00000200 }, //4055FF
  25     {2, KEY_DISPLAY,            0x00000400 }, //4053FF
  26     {2, KEY_PRINT,              0x00001000 }, //4047FF
  27     {0, 0, 0 }
  28 };
  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 long __attribute__((naked)) wrap_kbd_p1_f();
  44 
  45 static void __attribute__((noinline)) mykbd_task_proceed()
  46 {
  47         while (physw_run)
  48         {
  49                 _SleepTask(10);
  50 
  51                 if (wrap_kbd_p1_f() == 1)
  52                 { // autorepeat ?
  53                         _kbd_p2_f();
  54                 }
  55         }
  56 }
  57 
  58 void __attribute__((naked,noinline)) mykbd_task(long ua, long ub, long uc, long ud, long ue, long uf)
  59 {
  60         /* WARNING
  61          * Stack pointer manipulation performed here!
  62          * This means (but not limited to):
  63          *      function arguments destroyed;
  64          *      function CAN NOT return properly;
  65          *      MUST NOT call or use stack variables before stack
  66          *      is setup properly;
  67          *
  68          */
  69 
  70         register int i;
  71         register long *newstack;
  72 
  73         newstack = (void*)kbd_stack;
  74 
  75         for (i=0; i<NEW_SS/4; i++)
  76                 newstack[i]=0xdededede;
  77 
  78         asm volatile (
  79                         "MOV    SP, %0"
  80                         :: "r"(((char*)newstack)+NEW_SS)
  81                         : "memory"
  82         );
  83 
  84         mykbd_task_proceed();
  85 
  86         /* function can be modified to restore SP here...
  87          */
  88 
  89         _ExitTask();
  90 }
  91 
  92 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
  93 {
  94 
  95         asm volatile(
  96                         "STMFD   SP!, {R4-R7,LR}\n"
  97                         "SUB     SP, SP, #0xC\n"
  98                         "BL      my_kbd_read_keys\n"
  99                         "B       _kbd_p1_f_cont\n"
 100         );
 101         return 0; // shut up the compiler
 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 void kbd_fetch_data(long *dst)
 118 {
 119         volatile long *mmio0 = (void*)0xc0220200;
 120         volatile long *mmio1 = (void*)0xc0220204;
 121         volatile long *mmio2 = (void*)0xc0220208;
 122 
 123         dst[0] = *mmio0;
 124         dst[1] = *mmio1;
 125         dst[2] = *mmio2 & 0xffff;
 126 }

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