platform/ixus65_sd630/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 #define NEW_SS (0x2000)
   7 
   8 long kbd_new_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
   9 long kbd_prev_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
  10 long kbd_mod_state [3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
  11 
  12 KeyMap keymap[] = {
  13     /* tiny bug: key order matters. see kbd_get_pressed_key()
  14      * for example
  15      */
  16         {2, KEY_UP      , 0x00000001 },
  17         {2, KEY_DOWN    , 0x00000002 },
  18         {2, KEY_LEFT    , 0x00000008 },
  19         {2, KEY_RIGHT   , 0x00000004 },
  20         {2, KEY_SET     , 0x00000100 },
  21         {2, KEY_SHOOT_FULL, 0x00000030 }, // note 3 here!
  22     {2, KEY_SHOOT_FULL_ONLY, 0x00000020 },
  23         {2, KEY_SHOOT_HALF, 0x00000010 },
  24         {2, KEY_ZOOM_IN , 0x00000040 },
  25         {2, KEY_ZOOM_OUT        , 0x00000080 },
  26         {2, KEY_MENU    , 0x00000200 },
  27         {2, KEY_DISPLAY , 0x00000400 },
  28         {2, KEY_PRINT   , 0x00001000 },
  29         {0, 0, 0 }
  30 };
  31 
  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         _SleepTask(10);
  41 // original port had 5, but firmware uses 10?
  42 //        _SleepTask(5);
  43 
  44         if (wrap_kbd_p1_f() == 1) // Readout key state via camera function
  45         {
  46             _kbd_p2_f();
  47         }
  48 
  49     }
  50 }
  51 
  52 void __attribute__((naked,noinline)) mykbd_task()
  53 {
  54     /* WARNING
  55      * Stack pointer manipulation performed here!
  56      * This means (but not limited to):
  57      *  function arguments destroyed;
  58      *  function CAN NOT return properly;
  59      *  MUST NOT call or use stack variables before stack
  60      *  is setup properly;
  61      *
  62      */
  63 
  64     register int i;
  65     register long *newstack;
  66 
  67     newstack = (void*)kbd_stack;
  68 
  69     for (i=0;i<NEW_SS/4;i++)
  70         newstack[i]=0xdededede;
  71 
  72     asm volatile (
  73         "MOV    SP, %0"
  74         :: "r"(((char*)newstack)+NEW_SS)
  75         : "memory"
  76     );
  77 
  78     mykbd_task_proceed();
  79 
  80     /* function can be modified to restore SP here...
  81      */
  82 
  83     _ExitTask();
  84 }
  85 
  86 
  87 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
  88 {
  89 
  90     asm volatile(
  91                 "STMFD   SP!, {R4-R7,LR}\n"
  92                 "SUB     SP, SP, #0xC\n"
  93 //                "BL      _kbd_read_keys\n"
  94                 "BL      my_kbd_read_keys\n"
  95                 "B       _kbd_p1_f_cont\n"        // Continue original function execution
  96     );
  97     return 0; // shut up the compiler
  98 }
  99 
 100 #if CAM_FEATURE_FEATHER
 101 //extern int touch_keys_angle;
 102 #endif
 103 
 104 #define IN(base, value) ((value < base + 20) && (value > base - 20))
 105 
 106 /**
 107  * Handles and forwards key settings to key processing routines
 108  */
 109 void my_kbd_read_keys()
 110 {
 111 
 112     static int taskFeatherID = 0;
 113 
 114     if (taskFeatherID == 0) {
 115         taskFeatherID = _taskNameToId("tFeather");
 116 //        _printf("taskFeatherID:%x\n", taskFeatherID);
 117     }
 118 
 119 
 120     if(kbd_update_key_state() == 0) {
 121         _taskResume(taskFeatherID);
 122     } else {
 123         _taskSuspend(taskFeatherID);
 124         // We still need this sema when simulating key presses
 125         if ((kbd_mod_state[2] & KEYS_MASK2)!=KEYS_MASK2) {
 126             _taskResume(taskFeatherID);
 127         }
 128     }
 129     kbd_update_physw_bits();
 130 
 131 /*
 132     int key_emu = 0;
 133     int canonkey = 0;
 134     int i;
 135 
 136     if (IN(250, touch_keys_angle)) {
 137         key_emu = KEY_RIGHT;
 138     }
 139     if (IN(450, touch_keys_angle)) {
 140         key_emu = KEY_DOWN;
 141     }
 142     if (IN(675, touch_keys_angle)) {
 143         key_emu = KEY_LEFT;
 144     }
 145     if (IN(870, touch_keys_angle)) {
 146         key_emu = KEY_UP;
 147     }
 148     
 149     if (key_emu != 0) {
 150         for (i=0; keymap[i].hackkey; i++){
 151             if (keymap[i].hackkey == key_emu) {
 152                 canonkey = keymap[i].canonkey;
 153                 break;;
 154             }
 155         }
 156     }
 157 
 158     if (canonkey != 0) {
 159         kbd_new_state[2] = kbd_new_state[2] & ~canonkey;
 160     }
 161 */
 162 }
 163 
 164 extern void _GetKbdState(long *dst);
 165 
 166 void kbd_fetch_data(long *dst)
 167 {
 168     _kbd_pwr_on();
 169     _GetKbdState(dst);
 170     _kbd_read_keys_r2(dst);
 171     _kbd_pwr_off();
 172 }
 173
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root/platform/ixus65_sd630/kbd.c

DEFINITIONS
