source: trunk/platform/a3300/kbd.c @ 1620

#include "lolevel.h"
#include "platform.h"
#include "core.h"
#include "keyboard.h"
#include "conf.h"

typedef struct {
    short grp;
    short hackkey;
    long canonkey;
} KeyMap;

long kbd_new_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
static long kbd_prev_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
static long kbd_mod_state[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };

static long last_kbd_key = 0;

static long alt_mode_key_mask = 0x00000030; // disp + set
extern void _GetKbdState(long*);

// override key and feather bits to avoid feather osd messing up chdk display in ALT mode
#define KEYS_MASK0 (0x00000000)
#define KEYS_MASK1 (0x00000000)
#define KEYS_MASK2 (0x0000F0BF)         //set to avoid canon menu being effected while in Alt mode
 
#define LED_AF 0xC02200F4
#define NEW_SS (0x2000)

#define SD_READONLY_FLAG (0x00020000)
#define SD_READONLY_IDX     2

#define USB_MASK (0x04000000)
#define USB_IDX             2

extern void usb_remote_key( int ) ;
int get_usb_bit() 
{
        long usb_physw[3];
        usb_physw[USB_IDX] = 0;
        _kbd_read_keys_r2(usb_physw);
        return(( usb_physw[USB_IDX] & USB_MASK)==USB_MASK) ; 
}

#ifndef MALLOCD_STACK
static char kbd_stack[NEW_SS];
#endif

static KeyMap keymap[] = {

    { 2, KEY_SHOOT_FULL      ,0x00003000 }, // Found @0xffb5dc9c, levent 0x01
    { 2, KEY_SHOOT_FULL_ONLY ,0x00002000 }, // Found @0xffb5dc9c, levent 0x01
    { 2, KEY_UP              ,0x00000001 }, // Found @0xffb5dc3c, levent 0x04
    { 2, KEY_DOWN            ,0x00000002 }, // Found @0xffb5dc44, levent 0x05
    { 2, KEY_SHOOT_HALF      ,0x00001000 }, // Found @0xffb5dc94, levent 0x00
    { 2, KEY_LEFT            ,0x00000004 }, // Found @0xffb5dc4c, levent 0x06
    { 2, KEY_RIGHT           ,0x00000008 }, // Found @0xffb5dc54, levent 0x07
    { 2, KEY_SET             ,0x00000010 }, // Found @0xffb5dc5c, levent 0x08
    { 2, KEY_DISPLAY         ,0x00000020 }, // Found @0xffb5dc64, levent 0x0a
    { 2, KEY_MENU            ,0x00000080 }, // Found @0xffb5dc74, levent 0x09
    { 2, KEY_ZOOM_OUT        ,0x00004000 }, // Found @0xffb5dca4, levent 0x03
    { 2, KEY_ZOOM_IN         ,0x00008000 }, // Found @0xffb5dcac, levent 0x02
        { 2, KEY_PRINT           ,0x00000030 }, // Doesn't exist, DISP + SET for ALT menu
        { 0, 0, 0 }
};

void kbd_set_alt_mode_key_mask(long key)
{
        int i;
        for (i=0; keymap[i].hackkey; ++i) {
                if (keymap[i].hackkey == key) {
                        alt_mode_key_mask = keymap[i].canonkey;
                        return;
                }
        }
}


extern long __attribute__((naked)) wrap_kbd_p1_f() {
        

        asm volatile(
                "STMFD  SP!, {R1-R7,LR} \n"
                "MOV    R5, #0 \n"
                //"BL           _kbd_read_keys \n"
                "BL             my_kbd_read_keys \n"    // pacthed
                "B              _kbd_p1_f_cont \n"
        );
        return 0; // shut up the compiler
}
        
        
static void __attribute__((noinline)) mykbd_task_proceed() {
        
        while (physw_run) {
        _SleepTask(*((int*)(0x1C30 + 0x8))); //  @FF834160 + FF834168

                if (wrap_kbd_p1_f() == 1) {   // autorepeat ?
                _kbd_p2_f();
        }
    }
}

// no stack manipulation needed here, since we create the task directly
void __attribute__((naked,noinline)) mykbd_task() {
        mykbd_task_proceed(); 
        
// function can be modified to restore SP here...
        _ExitTask();
}


void my_kbd_read_keys() {
                

    kbd_prev_state[0] = kbd_new_state[0];
    kbd_prev_state[1] = kbd_new_state[1];
    kbd_prev_state[2] = kbd_new_state[2]; 

        _GetKbdState( kbd_new_state );
        _kbd_read_keys_r2( kbd_new_state);
        

        
    if (kbd_process() == 0) {
        // we read keyboard state with _kbd_read_keys()
                physw_status[0] = kbd_new_state[0];
                physw_status[1] = kbd_new_state[1];
                physw_status[2] = kbd_new_state[2];             

    } else {
        // override keys
        physw_status[0] = (kbd_new_state[0] | KEYS_MASK0) & (~KEYS_MASK0 | kbd_mod_state[0]); 
        physw_status[1] = (kbd_new_state[1] | KEYS_MASK1) & (~KEYS_MASK1 | kbd_mod_state[1]); 
        physw_status[2] = (kbd_new_state[2] | KEYS_MASK2) & (~KEYS_MASK2 | kbd_mod_state[2]);

    }
        
        usb_remote_key(physw_status[USB_IDX]) ;

        if (conf.remote_enable) {
                physw_status[USB_IDX] = physw_status[USB_IDX] & ~(SD_READONLY_FLAG | USB_MASK);
        } else {
                physw_status[USB_IDX] = physw_status[USB_IDX] & ~SD_READONLY_FLAG;
        }

        }

void kbd_key_press(long key) {
    
        int i;
    for (i=0;keymap[i].hackkey;i++){
        if (keymap[i].hackkey == key){
            kbd_mod_state[keymap[i].grp] &= ~keymap[i].canonkey;
            return;
        }
    }
}

void kbd_key_release(long key) {
 
   int i;
    for (i=0;keymap[i].hackkey;i++) {
        if (keymap[i].hackkey == key){
            kbd_mod_state[keymap[i].grp] |= keymap[i].canonkey;
            return;
        }
    }
}

void kbd_key_release_all() {
    
        kbd_mod_state[0] |= KEYS_MASK0;
    kbd_mod_state[1] |= KEYS_MASK1;
    kbd_mod_state[2] |= KEYS_MASK2;
}

long kbd_is_key_pressed(long key) {
  
        int i;
    for (i=0;keymap[i].hackkey;i++) {
        if (keymap[i].hackkey == key) {
            return ((kbd_new_state[keymap[i].grp] & keymap[i].canonkey) == 0) ? 1:0;
        }
    }
    return 0;
}

long kbd_is_key_clicked(long key) {
    
        int i;
    for (i=0;keymap[i].hackkey;i++) {
        if (keymap[i].hackkey == key){
            return ((kbd_prev_state[keymap[i].grp] & keymap[i].canonkey) != 0) &&
                ((kbd_new_state[keymap[i].grp] & keymap[i].canonkey) == 0);
        }
    }
    return 0;
}

long kbd_get_pressed_key() {
    
        int i;
    for (i=0;keymap[i].hackkey;i++) {
        if ((kbd_new_state[keymap[i].grp] & keymap[i].canonkey) == 0) {
            return keymap[i].hackkey;
        }
    }
    return 0;
}

long kbd_get_clicked_key() {

   int i;
    for (i=0;keymap[i].hackkey;i++) {
        if (((kbd_prev_state[keymap[i].grp] & keymap[i].canonkey) != 0) && ((kbd_new_state[keymap[i].grp] & keymap[i].canonkey) == 0)) {
            return keymap[i].hackkey;
        }
    }
    return 0;
}

void kbd_reset_autoclicked_key() {

        last_kbd_key = 0;
}

long kbd_get_autoclicked_key() {
    
        static long last_kbd_time = 0, press_count = 0;
    register long key, t;

    key=kbd_get_clicked_key();
    if (key) {
        last_kbd_key = key;
        press_count = 0;
        last_kbd_time = get_tick_count();
        return key;
    } else {
        if (last_kbd_key && kbd_is_key_pressed(last_kbd_key)) {
            t = get_tick_count();
            if (t-last_kbd_time>((press_count)?175:500)) {
                ++press_count;
                last_kbd_time = t;
                return last_kbd_key;
            } else {
                return 0;
            }
        } else {
            last_kbd_key = 0;
            return 0;
        }
    }
}

#ifdef CAM_USE_ZOOM_FOR_MF
    long kbd_use_zoom_as_mf() {

        static long v;
        static long zoom_key_pressed = 0;

        if (kbd_is_key_pressed(KEY_ZOOM_IN) && (mode_get()&MODE_MASK) == MODE_REC) {
            get_property_case(PROPCASE_FOCUS_MODE, &v, 4);
            if (v) {
                kbd_key_release_all();
                kbd_key_press(KEY_RIGHT);
                zoom_key_pressed = KEY_ZOOM_IN;
                return 1;
            }
        } else {
            if (zoom_key_pressed==KEY_ZOOM_IN) {
                kbd_key_release(KEY_RIGHT);
                zoom_key_pressed = 0;
                return 1;
            }
        }
        if (kbd_is_key_pressed(KEY_ZOOM_OUT) && (mode_get()&MODE_MASK) == MODE_REC) {
            get_property_case(PROPCASE_FOCUS_MODE, &v, 4);
            if (v) {
                kbd_key_release_all();
                kbd_key_press(KEY_LEFT);
                zoom_key_pressed = KEY_ZOOM_OUT;
                return 1;
            }
        } else {
            if (zoom_key_pressed==KEY_ZOOM_OUT) {
                kbd_key_release(KEY_LEFT);
                zoom_key_pressed = 0;
                return 1;
            }
        }
        return 0;
    }
#endif