platform/ixus55_sd450/kbd.c

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This source file includes following definitions.
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 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      , 0x00000020 },
  15     {2, KEY_DOWN    , 0x00000040 }, 
  16     {2, KEY_LEFT    , 0x00000080 }, 
  17     {2, KEY_RIGHT   , 0x00000100 },
  18     {2, KEY_SET     , 0x00000200 },
  19     {2, KEY_SHOOT_FULL, 0x00000006 },
  20     {2, KEY_SHOOT_FULL_ONLY, 0x00000004 },
  21     {2, KEY_SHOOT_HALF, 0x00000002 },
  22     {2, KEY_ZOOM_IN , 0x00000008 },
  23     {2, KEY_ZOOM_OUT, 0x00000010 },
  24     {2, KEY_MENU    , 0x00000400 },
  25     {2, KEY_DISPLAY , 0x00000800 },
  26     {2, KEY_PRINT   , 0x00002000 },
  27     {0,  0, 0 }
  28 };
  29 
  30 
  31 #define NEW_SS (0x2000)
  32 
  33 static char kbd_stack[NEW_SS];
  34 
  35 long __attribute__((naked)) wrap_kbd_p1_f();
  36 
  37 
  38 static void __attribute__((noinline)) mykbd_task_proceed()
  39 {
  40     while (physw_run){
  41         _SleepTask(10);
  42         if (wrap_kbd_p1_f() == 1){ // autorepeat ?
  43             _kbd_p2_f();
  44         }
  45     }
  46 }
  47 
  48 void __attribute__((naked,noinline)) mykbd_task()
  49 {
  50     /* WARNING
  51      * Stack pointer manipulation performed here!
  52      * This means (but not limited to):
  53      *  function arguments destroyed;
  54      *  function CAN NOT return properly;
  55      *  MUST NOT call or use stack variables before stack
  56      *  is setup properly;
  57      *
  58      */
  59 
  60     register int i;
  61     register long *newstack;
  62 
  63     newstack = (void*)kbd_stack;
  64 
  65     for (i=0;i<NEW_SS/4;i++)
  66         newstack[i]=0xdededede;
  67 
  68     asm volatile (
  69         "MOV    SP, %0"
  70         :: "r"(((char*)newstack)+NEW_SS)
  71         : "memory"
  72     );
  73 
  74     mykbd_task_proceed();
  75 
  76     /* function can be modified to restore SP here...
  77      */
  78 
  79     _ExitTask();
  80 }
  81 
  82 
  83 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
  84 {
  85 
  86     asm volatile(
  87                 "STMFD   SP!, {R4-R7,LR}\n"
  88                 "SUB     SP, SP, #0xC\n"
  89                 "BL      my_kbd_read_keys\n"
  90                 "B       _kbd_p1_f_cont\n"
  91     );
  92     return 0; // shut up the compiler
  93 }
  94 
  95 
  96 void my_kbd_read_keys()
  97 {
  98     _kbd_pwr_on();
  99 
 100     kbd_update_key_state();
 101 
 102     _kbd_read_keys_r2(physw_status);
 103 
 104     kbd_update_physw_bits();
 105 
 106     _kbd_pwr_off();
 107 }
 108 
 109 void kbd_fetch_data(long *dst)
 110 {
 111     volatile long *mmio1 = (void*)0xc0220204;
 112     volatile long *mmio2 = (void*)0xc0220208;
 113 
 114     dst[0] = 0;
 115     dst[1] = *mmio1;
 116     dst[2] = *mmio2 & 0xffff;
 117 }
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root/platform/ixus55_sd450/kbd.c

DEFINITIONS
