root/platform/ixus90_sd790/kbd.c

/* [<][>][^][v][top][bottom][index][help] */

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. Get_JogDial
  7. jogdial_control
  8. get_jogdial_direction
  9. 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()
  12      * for example
  13      */
  14         { 2, KEY_UP             , 0x00000080 }, 
  15         { 2, KEY_DOWN           , 0x00000040 }, 
  16         { 2, KEY_LEFT           , 0x00000010 }, 
  17         { 2, KEY_RIGHT          , 0x00000020 }, 
  18         { 2, KEY_SET            , 0x00000100 }, 
  19         { 2, KEY_SHOOT_FULL     , 0x00000003 },
  20     { 2, KEY_SHOOT_FULL_ONLY, 0x00000002 },
  21         { 2, KEY_SHOOT_HALF     , 0x00000001 }, 
  22         { 2, KEY_ZOOM_IN        , 0x00000004 }, 
  23         { 2, KEY_ZOOM_OUT       , 0x00000008 }, 
  24         { 2, KEY_MENU           , 0x00000400 }, 
  25         { 2, KEY_DISPLAY        , 0x00000200 }, 
  26         { 2, KEY_PRINT          , 0x00000800 }, 
  27         { 0, 0, 0 }
  28 };
  29 
  30 
  31 #define NEW_SS (0x2000)
  32 
  33 int get_usb_bit() 
  34 {
  35         long usb_physw[3];
  36         usb_physw[USB_IDX] = 0;
  37         _kbd_read_keys_r2(usb_physw);
  38         return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK) ; 
  39 }
  40 
  41 static char kbd_stack[NEW_SS];
  42 
  43 void kbd_fetch_data(long*);
  44 
  45 long __attribute__((naked)) wrap_kbd_p1_f();
  46 
  47 static void __attribute__((noinline)) mykbd_task_proceed()
  48 {
  49     while (physw_run){ 
  50                 _SleepTask(10);
  51 
  52                 if (wrap_kbd_p1_f() == 1){ // autorepeat ?
  53                 _kbd_p2_f();
  54                 }
  55     }
  56 }
  57 
  58 void __attribute__((naked,noinline))
  59 mykbd_task(long ua, long ub, long uc, long ud, long ue, long uf)
  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\n"
  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      my_kbd_read_keys\n" 
 101                                 //"BL      _kbd_read_keys\n"
 102                 "B       _kbd_p1_f_cont\n"
 103     );
 104     return 0; // shut up the compiler
 105 }
 106 
 107 void my_kbd_read_keys()
 108 {
 109     _kbd_pwr_on();
 110 
 111     kbd_update_key_state();
 112 
 113     _kbd_read_keys_r2(physw_status);
 114 
 115     kbd_update_physw_bits();
 116 
 117     _kbd_pwr_off();
 118 }
 119 
 120 int jogdial_stopped=0;
 121 
 122 static int new_jogdial=0, old_jogdial=0;
 123 
 124 int Get_JogDial(void)
 125 {
 126         // ??? \todo 0xC0240000+0x104 @ FF842A44  // address from sub above aJogdail (sub_FF84B8D8)
 127         return (*(int*)0xC0240104)>>16;
 128 }
 129 
 130 void jogdial_control(int n) {
 131     // this camera did not have jog_position defined
 132     /*
 133     if (jogdial_stopped && !n) {
 134         // If re-enabling jogdial set the task code current & previous positions to the actual
 135         // dial positions so that the change won't get processed by the firmware
 136         jog_position[0] = jog_position[2] = rear_dial_position;   // Rear dial
 137     }
 138     */
 139     jogdial_stopped = n;
 140 }
 141 
 142 long get_jogdial_direction(void)
 143 {
 144         old_jogdial=new_jogdial;
 145         new_jogdial=Get_JogDial();
 146 
 147         if (old_jogdial<new_jogdial) {
 148                 return JOGDIAL_LEFT;
 149         } else if (old_jogdial>new_jogdial) {
 150                 return JOGDIAL_RIGHT;
 151         } else {
 152                 return 0;
 153         }
 154 }
 155 
 156 void kbd_fetch_data(long *dst)
 157 {
 158     volatile long *mmio0 = (void*)0xc0220200;
 159     volatile long *mmio1 = (void*)0xc0220204;
 160     volatile long *mmio2 = (void*)0xc0220208;
 161 
 162     dst[0] = *mmio0;
 163     dst[1] = *mmio1;
 164     dst[2] = *mmio2 & 0xffff;
 165 }

/* [<][>][^][v][top][bottom][index][help] */