platform/ixus950_sd850/kbd.c

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This source file includes following definitions.
get_usb_bit
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 verified for ixus950_sd850, the same as in ixus70_sd1000 **********/
  11 KeyMap keymap[] = {
  12     /* tiny bug: key order matters. see kbd_get_pressed_key()
  13      * for example
  14      */
  15     {2, KEY_UP  , 0x00000010 },
  16     {2, KEY_DOWN        , 0x00000040 },
  17     {2, KEY_LEFT        , 0x00000080 },
  18     {2, KEY_RIGHT       , 0x00000020 },
  19     {2, KEY_SET , 0x00000100 },
  20     {1, KEY_SHOOT_FULL, 0xC0000000 },
  21     {1, KEY_SHOOT_FULL_ONLY, 0x80000000 },
  22     {1, KEY_SHOOT_HALF, 0x40000000 },
  23     {2, KEY_ZOOM_IN     , 0x00000004 },
  24     {2, KEY_ZOOM_OUT, 0x00000008 },
  25     {2, KEY_MENU        , 0x00000200 },
  26     {2, KEY_DISPLAY     , 0x00000400 },
  27     {2, KEY_PRINT       , 0x00000800 },
  28     {0, 0, 0 }
  29 };
  30 
  31 
  32 #define NEW_SS (0x2000)
  33 
  34 int get_usb_bit() 
  35 {
  36         long usb_physw[3];
  37         usb_physw[USB_IDX] = 0;
  38         _kbd_read_keys_r2(usb_physw);
  39         return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK);
  40 }
  41 
  42 static char kbd_stack[NEW_SS];
  43 
  44 long __attribute__((naked)) wrap_kbd_p1_f();
  45 
  46 
  47 static void __attribute__((noinline)) mykbd_task_proceed()
  48 {
  49     while (physw_run){
  50         _SleepTask(10);
  51 
  52         if (wrap_kbd_p1_f() == 1){ // autorepeat ?
  53             _kbd_p2_f();
  54         }
  55     }
  56 }
  57 
  58 void __attribute__((naked,noinline)) mykbd_task()
  59 {
  60     /* WARNING
  61      * Stack pointer manipulation performed here!
  62      * This means (but not limited to):
  63      *  function arguments destroyed;
  64      *  function CAN NOT return properly;
  65      *  MUST NOT call or use stack variables before stack
  66      *  is setup properly;
  67      *
  68      */
  69 
  70     register int i;
  71     register long *newstack;
  72 
  73     newstack = (void*)kbd_stack;        // #define NEW_SS (0x2000), kbd_stack[NEW_SS] above
  74 
  75     for (i=0;i<NEW_SS/4;i++)
  76         newstack[i]=0xdededede;
  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 
  89     _ExitTask();
  90 }
  91 
  92 
  93 long __attribute__((naked,noinline)) wrap_kbd_p1_f()    // original kbd_p1_f is sub_FFA3711C
  94 {
  95 
  96     asm volatile(
  97                 "STMFD   SP!, {R4-R7,LR}\n"
  98                 "SUB     SP, SP, #0xC\n"
  99                 "BL      my_kbd_read_keys\n"    // original sub_FFA371E8
 100                 "B      _kbd_p1_f_cont\n"       // kbd_p1_f_cont at FFA37128
 101     );
 102     return 0; // shut up the compiler
 103 }
 104 
 105 
 106 void my_kbd_read_keys()
 107 {
 108     static int handle_taskTouchW = 0, isRunning_taskTouchW = 1;
 109     if (handle_taskTouchW == 0) {
 110         handle_taskTouchW = _taskNameToId("tTouchW");
 111     }
 112 
 113     _kbd_pwr_on();
 114     
 115     // TODO TouchW logic equivalent to jogdial
 116     if(kbd_update_key_state() == 0) {
 117         if (!isRunning_taskTouchW) {
 118             _taskResume(handle_taskTouchW);
 119             isRunning_taskTouchW = 1;
 120         }
 121     } else {
 122         if (isRunning_taskTouchW && !camera_info.state.state_kbd_script_run) {
 123             _taskSuspend(handle_taskTouchW);
 124             isRunning_taskTouchW = 0;
 125         } else if (!isRunning_taskTouchW && camera_info.state.state_kbd_script_run) {
 126             _taskResume(handle_taskTouchW);
 127             isRunning_taskTouchW = 1;
 128         }
 129     }
 130 
 131     _kbd_read_keys_r2(physw_status);
 132 
 133     kbd_update_physw_bits();
 134 
 135     _kbd_pwr_off();
 136 }
 137 
 138 void kbd_fetch_data(long *dst)
 139 {
 140     volatile long *mmio0 = (void*)0xc0220200;
 141     volatile long *mmio1 = (void*)0xc0220204;
 142     volatile long *mmio2 = (void*)0xc0220208;
 143 
 144     dst[0] = *mmio0;
 145     dst[1] = *mmio1;
 146     dst[2] = *mmio2 & 0xffff;
 147 }
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root/platform/ixus950_sd850/kbd.c

DEFINITIONS
