root/platform/s80/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. get_jogdial_direction
  6. my_kbd_read_keys
  7. kbd_fetch_data
  8. jogdial_control

   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()
  12      * for example
  13      */
  14         { 1, KEY_UP             , 0x00040000 },
  15         { 1, KEY_DOWN           , 0x00100000 },
  16         { 1, KEY_LEFT           , 0x00020000 },
  17         { 1, KEY_RIGHT          , 0x00080000 }, // ok
  18         { 1, KEY_SET            , 0x00200000 }, // ok
  19         { 0, KEY_SHOOT_FULL     , 0x0000C000 }, // org
  20         { 0, KEY_SHOOT_FULL_ONLY        , 0x00008000 }, //
  21         { 0, KEY_SHOOT_HALF     , 0x00004000 }, // ?? org
  22         { 1, KEY_ZOOM_IN        , 0x00000001 }, // ok
  23         { 1, KEY_ZOOM_OUT       , 0x00000002 }, // ok
  24         { 1, KEY_MENU           , 0x08000000 }, // ok
  25         { 1, KEY_DISPLAY        , 0x10000000 }, // ok
  26         { 1, KEY_PRINT          , 0x00000010 }, // ok
  27         { 1, KEY_ERASE          , 0x20000000 }, // ok
  28         { 1, KEY_EXPO_CORR      , 0x04000000 }, // ok
  29         { 1, KEY_ISO            , 0x00040000 }, // up
  30         { 1, KEY_FLASH          , 0x00080000 }, // right
  31         { 1, KEY_MF             , 0x00100000 }, // down
  32         { 1, KEY_MACRO          , 0x00020000 }, // left
  33         { 1, KEY_MICROPHONE     , 0x00000020 }, //
  34         { 0, 0, 0 }
  35 };
  36 
  37 #define NEW_SS (0x2000)
  38 
  39 int get_usb_bit() 
  40 {
  41     long usb_physw[3];
  42     usb_physw[USB_IDX] = 0;
  43     _kbd_read_keys_r2(usb_physw);
  44     return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK) ; 
  45 }
  46 
  47 
  48 static char kbd_stack[NEW_SS];
  49 
  50 extern void _platformsub_kbd_fetch_data(long*);
  51 long __attribute__((naked)) wrap_kbd_p1_f();
  52 
  53 static void __attribute__((noinline)) mykbd_task_proceed()
  54 {
  55     while (physw_run){
  56         _SleepTask(10);
  57 
  58         if (wrap_kbd_p1_f() == 1){ // autorepeat ?
  59             _kbd_p2_f();
  60         }
  61     }
  62 }
  63 
  64 void __attribute__((naked,noinline))
  65 mykbd_task(long ua, long ub, long uc, long ud, long ue, long uf)
  66 {
  67     /* WARNING
  68      * Stack pointer manipulation performed here!
  69      * This means (but not limited to):
  70      *  function arguments destroyed;
  71      *  function CAN NOT return properly;
  72      *  MUST NOT call or use stack variables before stack
  73      *  is setup properly;
  74      *
  75      */
  76 
  77     register int i;
  78     register long *newstack;
  79 
  80     newstack = (void*)kbd_stack;
  81 
  82     for (i=0;i<NEW_SS/4;i++)
  83         newstack[i]=0xdededede;
  84 
  85     asm volatile (
  86         "MOV    SP, %0"
  87         :: "r"(((char*)newstack)+NEW_SS)
  88         : "memory"
  89     );
  90 
  91     mykbd_task_proceed();
  92 
  93     /* function can be modified to restore SP here...
  94      */
  95 
  96     _ExitTask();
  97 }
  98 
  99 
 100 long __attribute__((naked,noinline)) wrap_kbd_p1_f()
 101 {
 102     asm volatile(
 103                 "STMFD   SP!, {R4-R7,LR}\n"
 104                 "SUB     SP, SP, #0xC\n"
 105                 "BL      my_kbd_read_keys\n"
 106                 "B       _kbd_p1_f_cont\n"
 107     );
 108     return 0; // shut up the compiler
 109 }
 110 
 111 //scrollwheel:
 112 //[0xc0240204] >> 16: 16 bit counter
 113 //[0xc0240404] >> 16: another -"- (reverse?)
 114 //0x11a70, 72, 74, 76: halfwords storing the above counter values
 115 //0x11a70, 0x11a72: [0xc0240404] >> 16
 116 //0x11a74, 0x11a76: [0xc0240204] >> 16
 117 long get_jogdial_direction(void) {
 118     static int new_jogdial=0, old_jogdial=0;
 119     
 120     old_jogdial=new_jogdial;
 121     new_jogdial=(*(int*)0xC0240404)>>16;
 122     if (old_jogdial<new_jogdial) return JOGDIAL_LEFT; 
 123     else if (old_jogdial>new_jogdial) return JOGDIAL_RIGHT;
 124     else return 0;
 125 }
 126 
 127 int jogdial_stopped=0;
 128 
 129 void my_kbd_read_keys()
 130 {
 131     kbd_update_key_state();
 132 
 133     _kbd_read_keys_r2(physw_status);
 134 
 135     kbd_update_physw_bits();
 136 }
 137 
 138 void kbd_fetch_data(long *dst)
 139 {
 140     _platformsub_kbd_fetch_data(dst);
 141 }
 142 
 143 void jogdial_control(int n) {
 144     // this camera did not have jog_position defined
 145     /*
 146     if (jogdial_stopped && !n) {
 147         // If re-enabling jogdial set the task code current & previous positions to the actual
 148         // dial positions so that the change won't get processed by the firmware
 149         jog_position[0] = jog_position[2] = rear_dial_position;   // Rear dial
 150     }
 151     */
 152     jogdial_stopped = n;
 153 }
 154 

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