platform/a3400/kbd.c

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This source file includes following definitions.
get_usb_bit
wrap_kbd_p1_f
mykbd_task
my_kbd_read_keys
kbd_fetch_data
get_touch_data
chdk_process_touch
   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*);
  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 KeyMap keymap[] = {
  21         // Order IS important. kbd_get_pressed_key will walk down this table  
  22         // and take the first matching mask. Notice that KEY_SHOOT_HALF is  
  23         // always pressed if KEY_SHOOT_FULL is. --MarcusSt
  24     { 0, KEY_ZOOM_IN         ,0x00002000 }, // Found @0xffb2fd64, levent 0x02
  25     { 0, KEY_ZOOM_OUT        ,0x00001000 }, // Found @0xffb2fd5c, levent 0x03
  26     { 1, KEY_DOWN            ,0x00800000 }, // Found @0xffb2fd84, levent 0x05
  27     { 1, KEY_UP              ,0x00400000 }, // Found @0xffb2fd7c, levent 0x04
  28     { 1, KEY_SHOOT_FULL      ,0x00300000 }, // Found @0xffb2fd74, levent 0x01
  29     { 1, KEY_SHOOT_FULL_ONLY ,0x00200000 }, // Found @0xffb2fd74, levent 0x01
  30     { 1, KEY_SHOOT_HALF      ,0x00100000 }, // Found @0xffb2fd6c, levent 0x00
  31     { 1, KEY_SET             ,0x08000000 }, // Found @0xffb2fda4, levent 0x08
  32     { 1, KEY_MENU            ,0x04000000 }, // Found @0xffb2fd9c, levent 0x09
  33     { 1, KEY_LEFT            ,0x02000000 }, // Found @0xffb2fd94, levent 0x06
  34     { 1, KEY_RIGHT           ,0x01000000 }, // Found @0xffb2fd8c, levent 0x07
  35     { 1, KEY_PLAYBACK        ,0x80000000 }, // Found @0xffb2fdc4, levent 0x101
  36 //    { 1, KEY_POWER           ,0x40000000 }, // Found @0xffb2fdbc, levent 0x100
  37     { 1, KEY_HELP            ,0x20000000 }, // Found @0xffb2fdb4, levent 0x14
  38     { 1, KEY_VIDEO           ,0x10000000 }, // Found @0xffb2fdac, levent 0x1a
  39     { 0, 0, 0 }
  40 };
  41 
  42 
  43 long __attribute__((naked,noinline)) wrap_kbd_p1_f() {
  44         asm volatile(
  45                 "STMFD  SP!, {R1-R7,LR} \n"
  46                 "MOV    R5, #0 \n"
  47                 "BL             my_kbd_read_keys \n"    // patched
  48                 "B              _kbd_p1_f_cont \n"
  49         );
  50         
  51         return 0; // shut up the compiler
  52 }
  53 
  54 void __attribute__((noinline)) mykbd_task() {
  55         while (physw_run) {
  56                 _SleepTask(physw_sleep_delay);
  57                 if (wrap_kbd_p1_f() == 1) {   // autorepeat ?
  58                         _kbd_p2_f();
  59                 }
  60         }
  61         _ExitTask();
  62 }
  63 
  64 void my_kbd_read_keys() {
  65     kbd_update_key_state();
  66     kbd_update_physw_bits();
  67 
  68     extern void state_check_for_movie_af();
  69     state_check_for_movie_af(); // hack to prevent the "invisible af lock" caused by the movie af scan hack
  70 }
  71 
  72 void kbd_fetch_data(long *dst)
  73 {
  74     _GetKbdState(dst);
  75     _kbd_read_keys_r2(dst);
  76 }
  77 
  78 #if 0
  79 // very basic touch screen support
  80 // since this camera has a full set of physical buttons, full CHDK touch screen support is not needed
  81 // the code here (and in boot.c) is currently disabled, since the only use is to prevent passing touch events
  82 // to the Canon fw
  83 // could be used to drive a virtual keyboard, if one ever gets implemented
  84 // 0xc0220200 bit11: 1 when idle, 0 when "heavy" touch, bit7: 1 when idle, 0 when "soft" touch, anywhere on screen
  85 
  86 static unsigned short touchx = 0, touchy = 0;
  87 static unsigned int touchcnt = 0;
  88 
  89 void get_touch_data(unsigned short *x, unsigned short *y, unsigned int *cnt)
  90 {
  91     *x=touchx;
  92     *y=touchy;
  93     *cnt=touchcnt;
  94 }
  95 
  96 // Called from hooked touch panel task (boot.c)
  97 // Return 0 to allow touch event to pass onto firmware, 1 to block event from firmware.
  98 int chdk_process_touch()
  99 {
 100     touchcnt++;
 101     extern unsigned short touch_screen_x, touch_screen_y;
 102     // Touch co-ordinate
 103     touchx = ((touch_screen_x & 0x7FFF) >> 5) ^ 0x3FF;
 104     touchy = ((touch_screen_y & 0x7FFF) >> 5) ^ 0x3FF;
 105 
 106     // If in alt mode block event from firmware
 107     return !camera_info.state.gui_mode_none;
 108 }
 109 #endif
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root/platform/a3400/kbd.c

DEFINITIONS
