platform/a560/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 
   7 long kbd_new_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
   8 long kbd_prev_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
   9 long kbd_mod_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
  10 
  11 KeyMap keymap[] = {
  12     /* tiny bug: key order matters. see kbd_get_pressed_key()
  13      * for example
  14      */
  15         {2, KEY_UP      , 0x00000010 },
  16         {2, KEY_DOWN    , 0x00000020 },
  17         {2, KEY_LEFT    , 0x00000080 },
  18         {2, KEY_RIGHT   , 0x00000040 },
  19         {2, KEY_SET     , 0x00000100 },
  20         {1, KEY_SHOOT_FULL, 0xC0000000 }, // note 3 here!
  21     {1, KEY_SHOOT_FULL_ONLY, 0x80000000 },
  22         {1, KEY_SHOOT_HALF, 0x40000000 },
  23         {2, KEY_ZOOM_IN , 0x00000004 },
  24         {2, KEY_ZOOM_OUT, 0x00000008 },
  25         {2, KEY_MENU    , 0x00000200 },
  26         {2, KEY_DISPLAY , 0x00000400 },
  27         {2, KEY_PRINT   , 0x00000800 },
  28         {0, 0, 0 }
  29 };
  30 
  31 
  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 #define NEW_SS (0x2000)
  42 
  43 static char kbd_stack[NEW_SS];
  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)) mykbd_task(long ua, long ub, long uc, long ud, long ue, long uf)
  59 {
  60     (void)ua; (void)ub; (void)uc; (void)ud; (void)ue; (void)uf;
  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!, {R4-R7,LR}\n"
  99                 "SUB     SP, SP, #0xC\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 }
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root/platform/a560/kbd.c

DEFINITIONS
