platform/ixus60_sd600/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 // This port various CAM_FEATURE_FEATHER code, but according to the manual does not have a touch control dial
   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      , 0x00000001 },
  16         {2, KEY_DOWN    , 0x00000002 },
  17         {2, KEY_LEFT    , 0x00000008 },
  18         {2, KEY_RIGHT   , 0x00000004 },
  19         {2, KEY_SET     , 0x00000100 },
  20         {2, KEY_SHOOT_FULL, 0x00000030 }, // note 3 here!
  21     {2, KEY_SHOOT_FULL_ONLY, 0x00000020 }, 
  22         {2, KEY_SHOOT_HALF, 0x00000010 },
  23         {2, KEY_ZOOM_IN , 0x00000040 },
  24         {2, KEY_ZOOM_OUT        , 0x00000080 },
  25         {2, KEY_MENU    , 0x00000200 },
  26         {2, KEY_DISPLAY , 0x00000400 },
  27         {2, KEY_PRINT   , 0x00001000 },
  28         {0, 0, 0 }
  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 static void __attribute__((noinline)) mykbd_task_proceed()
  38 {
  39     while (physw_run){
  40         // was 5 in original port
  41         _SleepTask(10);
  42 
  43         if (wrap_kbd_p1_f() == 1) // Readout key state via camera function
  44         {
  45             _kbd_p2_f();
  46         }
  47 
  48     }
  49 }
  50 
  51 void __attribute__((naked,noinline)) mykbd_task()
  52 {
  53     /* WARNING
  54      * Stack pointer manipulation performed here!
  55      * This means (but not limited to):
  56      *  function arguments destroyed;
  57      *  function CAN NOT return properly;
  58      *  MUST NOT call or use stack variables before stack
  59      *  is setup properly;
  60      *
  61      */
  62 
  63     register int i;
  64     register long *newstack;
  65 
  66     newstack = (void*)kbd_stack;
  67 
  68     for (i=0;i<NEW_SS/4;i++)
  69         newstack[i]=0xdededede;
  70 
  71     asm volatile (
  72         "MOV    SP, %0"
  73         :: "r"(((char*)newstack)+NEW_SS)
  74         : "memory"
  75     );
  76 
  77    mykbd_task_proceed();
  78 
  79     /* function can be modified to restore SP here...
  80      */
  81 
  82     _ExitTask();
  83 }
  84 
  85 
  86 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
  87 {
  88 
  89     asm volatile(
  90                 "STMFD   SP!, {R4-R7,LR}\n"
  91                 "SUB     SP, SP, #0xC\n"
  92 //                "BL      _kbd_read_keys\n"
  93                 "BL      my_kbd_read_keys\n"
  94                 "B       _kbd_p1_f_cont\n"        // Continue original function execution
  95     );
  96     return 0; // shut up the compiler
  97 }
  98 
  99 
 100 /**
 101  * Handles and forwards key settings to key processing routines
 102  */
 103 void my_kbd_read_keys()
 104 {
 105     kbd_update_key_state();
 106     kbd_update_physw_bits();
 107 }
 108 
 109 extern void _GetKbdState(long *dst);
 110 
 111 void kbd_fetch_data(long *dst)
 112 {
 113     _kbd_pwr_on();
 114     _GetKbdState(dst);
 115     _kbd_read_keys_r2(dst);
 116     _kbd_pwr_off();
 117 }
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root/platform/ixus60_sd600/kbd.c

DEFINITIONS
