root/platform/sx110is/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
  7. jogdial_control
  8. Get_JogDial
  9. get_jogdial_direction

   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         // Order IS important. kbd_get_pressed_key will walk down this table  
  24         // and take the first matching mask. Notice that KEY_SHOOT_HALF is  
  25         // always pressed if KEY_SHOOT_FULL is. --MarcusSt
  26         { 1, KEY_PRINT     , 0x01000000 },
  27         { 1, KEY_MENU      , 0x08000000 },
  28         { 1, KEY_UP        , 0x00080000 }, 
  29         { 1, KEY_DOWN      , 0x00020000 }, 
  30         { 1, KEY_LEFT      , 0x00040000 }, 
  31         { 1, KEY_RIGHT     , 0x00010000 }, 
  32         { 1, KEY_SET       , 0x00100000 },
  33         { 1, KEY_FACE      , 0x10000000 }, 
  34         { 1, KEY_ERASE     , 0x04000000 }, 
  35         { 1, KEY_DISPLAY   , 0x02000000 }, 
  36         { 1, KEY_ZOOM_IN   , 0x00000100 }, 
  37         { 1, KEY_ZOOM_OUT  , 0x00000200 }, 
  38         
  39         { 0, KEY_SHOOT_FULL, 0x0000000C },
  40     { 0, KEY_SHOOT_FULL_ONLY, 0x00000008 },
  41         { 0, KEY_SHOOT_HALF, 0x00000004 },
  42         { 0, 0 }
  43 };
  44 
  45 extern void _GetKbdState(long *dst);
  46 
  47 long __attribute__((naked)) wrap_kbd_p1_f();
  48 
  49 static void __attribute__((noinline)) mykbd_task_proceed()
  50 {
  51         while (physw_run){
  52                 _SleepTask(10);
  53                 if (wrap_kbd_p1_f() == 1){ // autorepeat ?
  54                         _kbd_p2_f();
  55                 }
  56         }
  57 }
  58 
  59 void __attribute__((naked,noinline)) mykbd_task()
  60 {
  61     /* WARNING
  62      * Stack pointer manipulation performed here!
  63      * This means (but not limited to):
  64      *  function arguments destroyed;
  65      *  function CAN NOT return properly;
  66      *  MUST NOT call or use stack variables before stack
  67      *  is setup properly;
  68      *
  69      */
  70 
  71         register int i;
  72         register long *newstack;
  73 
  74         newstack = (void*)kbd_stack;
  75 
  76         for (i=0;i<NEW_SS/4;i++)
  77                 newstack[i]=0xdededede;
  78 
  79         asm volatile (
  80                 "MOV    SP, %0"
  81                 :: "r"(((char*)newstack)+NEW_SS)
  82                 : "memory"
  83         );
  84 
  85         mykbd_task_proceed();
  86 
  87         /* function can be modified to restore SP here...
  88          */
  89 
  90         _ExitTask();
  91 }
  92 
  93 
  94 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
  95 {
  96 
  97         asm volatile(
  98                 "STMFD   SP!, {R1-R5,LR}\n"
  99                 "MOV     R4, #0\n"
 100 //              "BL      _kbd_read_keys\n"
 101                 "BL      my_kbd_read_keys\n"
 102                 "B       _kbd_p1_f_cont\n"
 103         );
 104         return 0; // shut up the compiler
 105 }
 106 
 107 
 108 int jogdial_stopped=0;
 109 
 110 void my_kbd_read_keys()
 111 {       
 112     kbd_update_key_state();
 113     kbd_update_physw_bits();
 114 }
 115 
 116 void kbd_fetch_data(long *dst)
 117 {
 118     _kbd_pwr_on();
 119     _GetKbdState(dst);
 120     _kbd_read_keys_r2(dst);
 121     _kbd_pwr_off();
 122 }
 123 
 124 
 125 
 126 void jogdial_control(int n) {
 127     // this camera did not have jog_position defined
 128     /*
 129     if (jogdial_stopped && !n) {
 130         // If re-enabling jogdial set the task code current & previous positions to the actual
 131         // dial positions so that the change won't get processed by the firmware
 132         jog_position[0] = jog_position[2] = rear_dial_position;   // Rear dial
 133     }
 134     */
 135     jogdial_stopped = n;
 136 }
 137 
 138 static int new_jogdial=0, old_jogdial=0;
 139 
 140 int Get_JogDial(void){
 141 /* found at sub_FFC36528 (0xFFC36538 and 0xFFC36564)
 142 ROM:FFC36538                 LDR     R7, =0xC0240000
 143 ...
 144 ROM:FFC36564                 LDR     R0, [R7,#0x104]
 145 */
 146  return (*(int*)0xC0240104)>>16;                
 147  
 148 }
 149 
 150 long get_jogdial_direction(void) { 
 151  old_jogdial=new_jogdial;
 152  new_jogdial=Get_JogDial();
 153  if (old_jogdial<new_jogdial) return JOGDIAL_RIGHT; 
 154  else if (old_jogdial>new_jogdial) return JOGDIAL_LEFT;
 155  else return 0;
 156 }

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