root/platform/sx100is/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 extern void _GetKbdState(long *dst);
  11 
  12 #define NEW_SS (0x2000)
  13 
  14 int get_usb_bit() 
  15 {
  16         long usb_physw[3];
  17         usb_physw[USB_IDX] = 0;
  18         _kbd_read_keys_r2(usb_physw);
  19         return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK) ; 
  20 }
  21 
  22 static char kbd_stack[NEW_SS];
  23 
  24 KeyMap keymap[] = {
  25         /* tiny bug: key order matters. see kbd_get_pressed_key()
  26          * for example
  27          */
  28         { 1, KEY_PRINT    , 0x10000000 },
  29         { 1, KEY_ZOOM_IN  , 0x00000100 }, 
  30         { 1, KEY_ZOOM_OUT , 0x00000200 }, 
  31         { 1, KEY_RIGHT    , 0x00100000 },
  32         { 1, KEY_UP       , 0x00020000 },
  33         { 1, KEY_DOWN     , 0x00080000 },
  34         { 1, KEY_MENU     , 0x02000000 },
  35         { 1, KEY_DISPLAY  , 0x04000000 },
  36         { 1, KEY_SET      , 0x00010000 },
  37         { 1, KEY_ERASE    , 0x01000000 },
  38         { 1, KEY_LEFT     , 0x00040000 },
  39         { 1, KEY_FACE     , 0x08000000 },
  40 
  41         { 0, KEY_SHOOT_FULL, 0x0000000C }, 
  42     { 0, KEY_SHOOT_FULL_ONLY, 0x00000008 }, 
  43         { 0, KEY_SHOOT_HALF, 0x00000004 },
  44 
  45         { 0, 0 }
  46 };
  47 
  48 
  49 long __attribute__((naked)) wrap_kbd_p1_f();
  50 
  51 static void __attribute__((noinline)) mykbd_task_proceed()
  52 {
  53         while (physw_run){
  54                 _SleepTask(10);
  55                 if (wrap_kbd_p1_f() == 1){ // autorepeat ?
  56                         _kbd_p2_f();
  57                 }
  58         }
  59 }
  60 
  61 void __attribute__((naked,noinline)) mykbd_task()
  62 {
  63     /* WARNING
  64      * Stack pointer manipulation performed here!
  65      * This means (but not limited to):
  66      *  function arguments destroyed;
  67      *  function CAN NOT return properly;
  68      *  MUST NOT call or use stack variables before stack
  69      *  is setup properly;
  70      *
  71      */
  72 
  73         register int i;
  74         register long *newstack;
  75 
  76         newstack = (void*)kbd_stack;
  77 
  78         for (i=0;i<NEW_SS/4;i++)
  79                 newstack[i]=0xdededede;
  80 
  81         asm volatile (
  82                 "MOV    SP, %0"
  83                 :: "r"(((char*)newstack)+NEW_SS)
  84                 : "memory"
  85         );
  86 
  87         mykbd_task_proceed();
  88 
  89         /* function can be modified to restore SP here...
  90          */
  91 
  92         _ExitTask();
  93 }
  94 
  95 
  96 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
  97 {
  98 
  99         asm volatile(
 100                 "STMFD   SP!, {R1-R5,LR}\n"
 101                 "MOV     R4, #0\n"
 102                 "BL      _kbd_read_keys\n"
 103                 "BL      my_kbd_read_keys\n"
 104                 "B       _kbd_p1_f_cont\n"
 105         );
 106         return 0; // shut up the compiler
 107 }
 108 
 109 
 110 int jogdial_stopped=0;
 111 
 112 void my_kbd_read_keys()
 113 {       
 114     kbd_update_key_state();
 115     kbd_update_physw_bits();
 116 }
 117 
 118 void kbd_fetch_data(long *dst)
 119 {
 120     _GetKbdState(dst);
 121     _kbd_read_keys_r2(dst);
 122 }
 123 
 124 
 125 void jogdial_control(int n) {
 126     // this camera did not have jog_position defined
 127     /*
 128     if (jogdial_stopped && !n) {
 129         // If re-enabling jogdial set the task code current & previous positions to the actual
 130         // dial positions so that the change won't get processed by the firmware
 131         jog_position[0] = jog_position[2] = rear_dial_position;   // Rear dial
 132     }
 133     */
 134     jogdial_stopped = n;
 135 }
 136 
 137 static int new_jogdial=0, old_jogdial=0;
 138 
 139 int Get_JogDial(void){
 140  return (*(int*)0xC0240304)>>16;
 141 }
 142 
 143 long get_jogdial_direction(void) { 
 144  old_jogdial=new_jogdial;
 145  new_jogdial=Get_JogDial();
 146  if (old_jogdial>new_jogdial) return JOGDIAL_LEFT; 
 147  else if (old_jogdial<new_jogdial) return JOGDIAL_RIGHT;
 148  else return 0;
 149 }

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