platform/sx200is/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
jogdial_control
Get_JogDial
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 KeyMap keymap[] = {
  11 //         KEY_ZOOM_IN_SLOW   , 0x00000040 },
  12 //         KEY_ZOOM_OUT_SLOW  , 0x00000010 },
  13 
  14     { 0, KEY_SHOOT_FULL     , 0x00000300 },
  15     { 0, KEY_SHOOT_FULL_ONLY, 0x00000200 },
  16     { 0, KEY_SHOOT_HALF     , 0x00000100 },
  17 
  18     { 1, KEY_ZOOM_OUT       , 0x00000030 }, //method taken from the SX220 port
  19     { 1, KEY_ZOOM_OUT       , 0x00000010 },
  20     { 1, KEY_ZOOM_OUT       , 0x00000020 },
  21     { 1, KEY_ZOOM_IN        , 0x000000C0 },
  22     { 1, KEY_ZOOM_IN        , 0x00000040 },
  23     { 1, KEY_ZOOM_IN        , 0x00000080 },
  24 
  25     { 1, KEY_UP             , 0x00000100 },
  26     { 1, KEY_DOWN           , 0x00001000 },
  27     { 1, KEY_LEFT           , 0x00000200 },
  28     { 1, KEY_RIGHT          , 0x00002000 },
  29     { 1, KEY_SET            , 0x00000400 },
  30 //    { 1, KEY_ZOOM_IN        , 0x00000080 },
  31 //    { 1, KEY_ZOOM_OUT       , 0x00000020 },
  32     { 1, KEY_MENU           , 0x00000800 },
  33     { 1, KEY_DISPLAY        , 0x00008000 },
  34     { 1, KEY_PRINT          , 0x00004000 },
  35         { 0, 0, 0 }
  36 };
  37 
  38 extern void _platformsub_kbd_fetch_data(long*);
  39 
  40 #define NEW_SS (0x2000)
  41 
  42 int get_usb_bit() 
  43 {
  44         long usb_physw[3];
  45         usb_physw[USB_IDX] = 0;
  46         _kbd_read_keys_r2(usb_physw);
  47         return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK) ; 
  48 }
  49 
  50 static char kbd_stack[NEW_SS];
  51 
  52 
  53 long __attribute__((naked)) wrap_kbd_p1_f();
  54 
  55 static void __attribute__((noinline)) mykbd_task_proceed()
  56 {
  57         kbd_new_state[0] = physw_status[0];
  58         kbd_new_state[1] = physw_status[1];
  59         kbd_new_state[2] = physw_status[2];
  60         while (physw_run){
  61                 _SleepTask(10);
  62                 
  63                 if (wrap_kbd_p1_f() == 1){ // autorepeat ?
  64                         _kbd_p2_f();
  65                 }
  66         }
  67 }
  68 
  69 void __attribute__((naked,noinline)) mykbd_task()
  70 {
  71     /* WARNING
  72      * Stack pointer manipulation performed here!
  73      * This means (but not limited to):
  74      *  function arguments destroyed;
  75      *  function CAN NOT return properly;
  76      *  MUST NOT call or use stack variables before stack
  77      *  is setup properly;
  78      *
  79      */
  80 
  81         register int i;
  82         register long *newstack;
  83 
  84         newstack = (void*)kbd_stack;
  85 
  86         for (i=0;i<NEW_SS/4;i++)
  87                 newstack[i]=0xdededede;
  88 
  89         asm volatile (
  90                 "MOV    SP, %0"
  91                 :: "r"(((char*)newstack)+NEW_SS)
  92                 : "memory"
  93         );
  94 
  95         mykbd_task_proceed();
  96 
  97         /* function can be modified to restore SP here...
  98          */
  99 
 100         _ExitTask();
 101 }
 102 
 103 
 104 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
 105 {
 106 
 107         asm volatile(
 108                 "STMFD   SP!, {R1-R5,LR}\n"
 109                 "MOV     R4, #0\n"
 110                 "BL      my_kbd_read_keys\n"
 111                 "B       _kbd_p1_f_cont\n"
 112         );
 113         return 0; // shut up the compiler
 114 }
 115 
 116 int jogdial_stopped=0;
 117 
 118 void my_kbd_read_keys()
 119 {
 120    kbd_update_key_state();
 121 
 122    _kbd_read_keys_r2(physw_status);
 123 
 124    kbd_update_physw_bits();
 125 }
 126 
 127 void kbd_fetch_data(long *dst) 
 128 {
 129     _platformsub_kbd_fetch_data(dst);
 130 }
 131 
 132 
 133 void jogdial_control(int n) {
 134     // this camera did not have jog_position defined
 135     /*
 136     if (jogdial_stopped && !n) {
 137         // If re-enabling jogdial set the task code current & previous positions to the actual
 138         // dial positions so that the change won't get processed by the firmware
 139         jog_position[0] = jog_position[2] = rear_dial_position;   // Rear dial
 140     }
 141     */
 142     jogdial_stopped = n;
 143 }
 144 
 145 static int new_jogdial=0, old_jogdial=0;
 146 
 147 int Get_JogDial(void){
 148  return (*(int*)0xC0240104)>>16;
 149 }
 150 
 151 long get_jogdial_direction(void) { 
 152  old_jogdial=new_jogdial;
 153  new_jogdial=Get_JogDial();
 154  if (old_jogdial<new_jogdial) return JOGDIAL_LEFT; 
 155  else if (old_jogdial>new_jogdial) return JOGDIAL_RIGHT;
 156  else return 0;
 157 }
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root/platform/sx200is/kbd.c

DEFINITIONS
