root/platform/ixus85_sd770/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 #define NEW_SS (0x2000)
  11 
  12 int get_usb_bit() 
  13 {
  14         long usb_physw[3];
  15         usb_physw[USB_IDX] = 0;
  16         _kbd_read_keys_r2(usb_physw);
  17         return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK) ; 
  18 }
  19 
  20 static char kbd_stack[NEW_SS];
  21 
  22 KeyMap keymap[] = {
  23         /* tiny bug: key order matters. see kbd_get_pressed_key()
  24         * for example
  25         */
  26         { 2, KEY_UP             , 0x00000080 }, 
  27         { 2, KEY_DOWN           , 0x00000040 },
  28         { 2, KEY_LEFT           , 0x00000010 },
  29         { 2, KEY_RIGHT          , 0x00000020 },
  30         { 2, KEY_SET            , 0x00000100 },
  31         { 2, KEY_SHOOT_FULL     , 0x00000003 },
  32     { 2, KEY_SHOOT_FULL_ONLY, 0x00000002 },
  33         { 2, KEY_SHOOT_HALF     , 0x00000001 }, 
  34         { 2, KEY_ZOOM_IN        , 0x00000004 },
  35         { 2, KEY_ZOOM_OUT       , 0x00000008 },
  36         { 2, KEY_MENU           , 0x00000400 },
  37         { 2, KEY_DISPLAY        , 0x00000200 },
  38         { 2, KEY_PRINT          , 0x00000800 },
  39         { 0, 0, 0 }
  40 };
  41 
  42 void kbd_fetch_data(long*);
  43 
  44 long __attribute__((naked)) wrap_kbd_p1_f();
  45 
  46 static void __attribute__((noinline)) mykbd_task_proceed()
  47 {
  48         while (physw_run) {
  49                 _SleepTask(10);
  50 
  51                 if (wrap_kbd_p1_f() == 1) { // autorepeat ?
  52                         _kbd_p2_f();
  53                 }
  54         }
  55 }
  56 
  57 void __attribute__((naked,noinline)) mykbd_task(long ua, long ub, long uc, long ud, long ue, long uf)
  58 {
  59         /* WARNING
  60         * Stack pointer manipulation performed here!
  61         * This means (but not limited to):
  62         *       function arguments destroyed;
  63         *       function CAN NOT return properly;
  64         *       MUST NOT call or use stack variables before stack
  65         *       is setup properly;
  66         *
  67         */
  68 
  69         register int i;
  70         register long *newstack;
  71 
  72         newstack = (void*)kbd_stack;
  73 
  74         for (i=0;i<NEW_SS/4;i++) {
  75                 newstack[i]=0xdededede;
  76         }
  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         _ExitTask();
  89 }
  90 
  91 
  92 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
  93 {
  94         asm volatile (
  95                 "STMFD   SP!, {R1-R5,LR}\n"
  96                 "MOV     R4, #0\n"
  97                 "BL      my_kbd_read_keys\n"
  98                 "B       _kbd_p1_f_cont\n"
  99                 );
 100         return 0; // shut up the compiler
 101 }
 102 
 103 void my_kbd_read_keys()
 104 {
 105     _kbd_pwr_on();
 106 
 107     kbd_update_key_state();
 108 
 109     _kbd_read_keys_r2(physw_status);
 110 
 111     kbd_update_physw_bits();
 112 
 113     _kbd_pwr_off();
 114 }
 115 
 116 void kbd_fetch_data(long *dst)
 117 {
 118         // 0xC0220000+0x200, 0xC0220000+0x204, 0xC0220000+0x208 @ FF842950
 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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