platform/ixus900_sd900/kbd.c

/* [<][>][^][v][top][bottom][index][help] */
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 keymap[] = {
  11     // tiny bug: key order matters. see kbd_get_pressed_key() for example
  12     {2, KEY_UP            , 0x00000010},
  13     {2, KEY_DOWN          , 0x00000020},
  14     {2, KEY_LEFT          , 0x00000080},
  15     {2, KEY_RIGHT         , 0x00000040},
  16     {2, KEY_SET           , 0x00000100},
  17     {1, KEY_SHOOT_FULL    , 0xC0000000},
  18     {1, KEY_SHOOT_FULL_ONLY, 0x80000000},
  19     {1, KEY_SHOOT_HALF    , 0x40000000},
  20     {2, KEY_ZOOM_IN       , 0x00000004},
  21     {2, KEY_ZOOM_OUT      , 0x00000008},
  22     {2, KEY_MENU          , 0x00000200},
  23     {2, KEY_DISPLAY       , 0x00000400},
  24     {2, KEY_PRINT         , 0x00000800},
  25     {0, 0, 0}
  26 };
  27 
  28 int get_usb_bit() 
  29 {
  30         long usb_physw[3];
  31         usb_physw[USB_IDX] = 0;
  32         _kbd_read_keys_r2(usb_physw);
  33         return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK) ; 
  34 }
  35 
  36 #define NEW_SS (0x2000)
  37 
  38 static char kbd_stack[NEW_SS];
  39 
  40 long __attribute__((naked)) wrap_kbd_p1_f();
  41 
  42 static void __attribute__((noinline)) mykbd_task_proceed() {
  43     while(physw_run) {
  44         _SleepTask(10);
  45         if(wrap_kbd_p1_f() == 1) {    // Readout key state via camera function
  46             _kbd_p2_f();
  47         }
  48     }
  49 }
  50 
  51 void __attribute__((naked,noinline)) mykbd_task(long ua, long ub, long uc, long ud, long ue, long uf) {
  52     (void)ua; (void)ub; (void)uc; (void)ud; (void)ue; (void)uf;
  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     register int i;
  63     register long *newstack;
  64 
  65     newstack = (void*)kbd_stack;
  66 
  67     for(i=0; i<NEW_SS/4; i++)
  68         newstack[i]=0xdededede;
  69 
  70     asm volatile(
  71         "MOV     SP, %0\n"
  72         :: "r"(((char*)newstack)+NEW_SS)
  73         : "memory"
  74     );
  75 
  76     mykbd_task_proceed();
  77 
  78     // function can be modified to restore SP here...
  79     _ExitTask();
  80 }
  81 
  82 // ROM:FF827F58
  83 long __attribute__((naked,noinline)) wrap_kbd_p1_f() {
  84     asm volatile(
  85         "STMFD   SP!, {R4-R7,LR}\n"
  86         "SUB     SP, SP, #0xC\n"
  87 //        "BL      _kbd_read_keys\n"   // replacement for kbd_fetch_data()
  88         "BL      my_kbd_read_keys\n"
  89         "B       _kbd_p1_f_cont\n"
  90     );
  91     return 0;   // shut up the compiler
  92 }
  93 
  94 // ToDo: required?
  95 /*
  96 #if CAM_FEATURE_FEATHER
  97     extern int touch_keys_angle;
  98     extern int * touch_keys_sema;
  99     int touch_keys_sema_stored;
 100 #endif
 101 */
 102 
 103 void my_kbd_read_keys() {
 104     static int taskFeatherID = 0;
 105     extern int taskNameToId(char*);
 106     if (taskFeatherID == 0) {
 107         taskFeatherID = _taskNameToId("tFeather");
 108         //printf("taskFeatherID:%x\n", taskFeatherID);
 109     }
 110 
 111     if(kbd_update_key_state() == 0) {
 112         _taskResume(taskFeatherID);
 113     } else {
 114         _taskSuspend(taskFeatherID);
 115         // the equivalent of this code was not enabled in original port
 116         /*
 117         // We still need this sema when simulating key presses
 118         if ((kbd_mod_state[2] & KEYS_MASK2)!=KEYS_MASK2) {
 119             _taskResume(taskFeatherID);
 120         }
 121         */
 122     }
 123     kbd_update_physw_bits();
 124 }
 125 
 126 extern void _GetKbdState(long *dst);
 127 
 128 void kbd_fetch_data(long *dst)
 129 {
 130     _kbd_pwr_on();
 131     _GetKbdState(dst);
 132     _kbd_read_keys_r2(dst);
 133     _kbd_pwr_off();
 134 }
/* [<][>][^][v][top][bottom][index][help] */
root/platform/ixus900_sd900/kbd.c

DEFINITIONS
