source: trunk/platform/ixus75_sd750/kbd.c @ 560

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

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


static long kbd_new_state[3];
static long kbd_prev_state[3];
static long kbd_mod_state[3];
static KeyMap keymap[];
static long last_kbd_key = 0;
static int usb_power=0;
static int remote_key, remote_count;
#define USB_MASK (0x40000) 
#define USB_REG 2


#define KEYS_MASK0 (0x00000000)
#define KEYS_MASK1 (0xc0000000) // (0xc0800000)
#define KEYS_MASK2 (0x0ffc)

#define NEW_SS (0x2000)
#define SD_READONLY_FLAG (0x20000)

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

long __attribute__((naked)) wrap_kbd_p1_f() ;

static void __attribute__((noinline)) mykbd_task_proceed()
{
    while (physw_run){
        _SleepTask(10);

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

void __attribute__((naked,noinline)) mykbd_task(long ua, long ub, long uc, long ud, long ue, long uf)
{
    /* WARNING
     * Stack pointer manipulation performed here!
     * This means (but not limited to):
     *  function arguments destroyed;
     *  function CAN NOT return properly;
     *  MUST NOT call or use stack variables before stack
     *  is setup properly;
     *
     */

    register int i;
    register long *newstack;

#ifndef MALLOCD_STACK
    newstack = (void*)kbd_stack;
#else
    newstack = malloc(NEW_SS);
#endif

    for (i=0;i<NEW_SS/4;i++)
        newstack[i]=0xdededede;

    asm volatile (
        "MOV    SP, %0"
        :: "r"(((char*)newstack)+NEW_SS)
        : "memory"
    );

    mykbd_task_proceed();

    /* function can be modified to restore SP here...
     */

    _ExitTask();
}


long __attribute__((naked,noinline)) wrap_kbd_p1_f()
{

    asm volatile(
                "STMFD   SP!, {R4-R7,LR}\n"
                "SUB     SP, SP, #0xC\n"
                "BL      my_kbd_read_keys\n"
                "B       _kbd_p1_f_cont\n"
    );
    return 0; // shut up the compiler
}


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];
    _kbd_pwr_on();
    kbd_fetch_data(kbd_new_state);

    if (kbd_process() == 0){
        // leave it alone...
        physw_status[0] = kbd_new_state[0];
        physw_status[1] = kbd_new_state[1];
        physw_status[2] = kbd_new_state[2];
        //physw_status[1] |= alt_mode_key_mask;

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

        physw_status[1] = (kbd_new_state[1] & (~KEYS_MASK1)) |
              (kbd_mod_state[1] & KEYS_MASK1);

        physw_status[2] = (kbd_new_state[2] & (~KEYS_MASK2)) |
              (kbd_mod_state[2] & KEYS_MASK2);
    }



    _kbd_read_keys_r2(physw_status);

        if (conf.remote_enable) {
                remote_key = (physw_status[2] & USB_MASK)==USB_MASK;
                if (remote_key) 
                        remote_count += 1;
                else if (remote_count) {
                        usb_power = remote_count;
                        remote_count = 0;
                }
                physw_status[2] = physw_status[2] & ~(SD_READONLY_FLAG | USB_MASK);
        }
        else
                physw_status[2] = physw_status[2] & ~SD_READONLY_FLAG;


    _kbd_pwr_off();

}

int get_usb_power(int edge)
{
        int x;

        if (edge) return remote_key;
        x = usb_power;
        usb_power = 0;
        return x;
}

/* 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;
        }
    }
} */

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;
        }
    }
        
        
}

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;
}



static KeyMap keymap[] = {
    /* tiny bug: key order matters. see kbd_get_pressed_key()
     * for example
     */
        {2, KEY_UP      , 0x00000010 },
        {2, KEY_DOWN    , 0x00000040 },
        {2, KEY_LEFT    , 0x00000080 },
        {2, KEY_RIGHT   , 0x00000020 },
        {2, KEY_SET     , 0x00000100 },
        {1, KEY_SHOOT_FULL, 0xC0000000 }, // note 3 here!
        {1, KEY_SHOOT_HALF, 0x40000000 },
        {2, KEY_ZOOM_IN , 0x00000004 },
        {2, KEY_ZOOM_OUT, 0x00000008 },
        {2, KEY_MENU    , 0x00000200 },
        {2, KEY_DISPLAY , 0x00000400 },
        {2, KEY_PRINT   , 0x00000800 },
      //  {2, KEY_DUMMY , 0x00000800 },
        { 0, 0 }
};




 void kbd_fetch_data(long *dst)
{
    volatile long *mmio0 = (void*)0xc0220200;
    volatile long *mmio1 = (void*)0xc0220204;
    volatile long *mmio2 = (void*)0xc0220208;

    dst[0] = *mmio0;
    dst[1] = *mmio1;
    dst[2] = *mmio2 & 0xffff;
}