root/platform/ixus960_sd950/kbd.c

/* [<][>][^][v][top][bottom][index][help] */

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             , 0x00000080 }, 
  15         { 2, KEY_DOWN           , 0x00000040 }, 
  16         { 2, KEY_LEFT           , 0x00000010 }, 
  17         { 2, KEY_RIGHT          , 0x00000020 }, 
  18         { 2, KEY_SET            , 0x00000100 }, 
  19         { 2, KEY_SHOOT_FULL     , 0x00000003 },
  20     { 2, KEY_SHOOT_FULL_ONLY, 0x00000002 },
  21         { 2, KEY_SHOOT_HALF     , 0x00000001 }, 
  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         { 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 void kbd_fetch_data(long*);
  44 
  45 long __attribute__((naked)) wrap_kbd_p1_f();
  46 
  47 
  48 static void __attribute__((noinline)) mykbd_task_proceed()
  49 {
  50     while (physw_run){ 
  51         _SleepTask(10);
  52 
  53         if (wrap_kbd_p1_f() == 1){ // autorepeat ?
  54             _kbd_p2_f();
  55         }
  56     }
  57 }
  58 
  59 void __attribute__((naked,noinline))
  60 mykbd_task(long ua, long ub, long uc, long ud, long ue, long uf)
  61 {
  62     /* WARNING
  63      * Stack pointer manipulation performed here!
  64      * This means (but not limited to):
  65      *  function arguments destroyed;
  66      *  function CAN NOT return properly;
  67      *  MUST NOT call or use stack variables before stack
  68      *  is setup properly;
  69      *
  70      */
  71 
  72     register int i;
  73     register long *newstack;
  74 
  75     newstack = (void*)kbd_stack;
  76 
  77     for (i=0;i<NEW_SS/4;i++)
  78         newstack[i]=0xdededede;
  79 
  80     asm volatile (
  81         "MOV    SP, %0\n"
  82         :: "r"(((char*)newstack)+NEW_SS)
  83         : "memory"
  84     );
  85 
  86     mykbd_task_proceed();
  87 
  88     /* function can be modified to restore SP here...
  89      */
  90 
  91     _ExitTask();
  92 }
  93 
  94 
  95 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
  96 {
  97 
  98     asm volatile(
  99                 "STMFD   SP!, {R1-R5,LR}\n"
 100                 "MOV     R4, #0\n"
 101                 "BL      my_kbd_read_keys\n" 
 102                 "B       _kbd_p1_f_cont\n"
 103     );
 104     return 0; // shut up the compiler
 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 void kbd_fetch_data(long *dst)
 121 {
 122     volatile long *mmio0 = (void*)0xc0220200;
 123     volatile long *mmio1 = (void*)0xc0220204;
 124     volatile long *mmio2 = (void*)0xc0220208;
 125 
 126     dst[0] = *mmio0;
 127     dst[1] = *mmio1;
 128     dst[2] = *mmio2 & 0xffff;
 129 }

/* [<][>][^][v][top][bottom][index][help] */