source: trunk/platform/a480/kbd.c @ 1344

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

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


static long kbd_new_state[3];
static long kbd_prev_state[3];
static long kbd_mod_state[3];

static long last_kbd_key = 0;
static int usb_power=0;
static int remote_key, remote_count;
static int shoot_counter=0;
extern void _platformsub_kbd_fetch_data(long*);

#define DELAY_TIMEOUT 10000


#define KEYS_MASK0 (0x00020000)
#define KEYS_MASK1 (0x00000000)
#define KEYS_MASK2 (0x00000DFF)

#define NEW_SS (0x2000)
#define SD_READONLY_FLAG (0x40000)
#define USB_MASK (0x80000)
#define USB_REG 2


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


static KeyMap keymap[] = {
        /* tiny bug: key order matters. see kbd_get_pressed_key()
         * for example
         */

        { 0, KEY_DISPLAY        , 0x00020000 },   // playback key

        { 2, KEY_SHOOT_FULL     , 0x00000030 },
    { 2, KEY_SHOOT_FULL_ONLY, 0x00000020 },
        { 2, KEY_SHOOT_HALF     , 0x00000010 },
        { 2, KEY_UP             , 0x00000001 },
        { 2, KEY_DOWN           , 0x00000002 },
        { 2, KEY_LEFT           , 0x00000008 },
        { 2, KEY_RIGHT          , 0x00000004 },
        { 2, KEY_SET            , 0x00000100 },
        { 2, KEY_ZOOM_IN        , 0x00000080 },
        { 2, KEY_ZOOM_OUT       , 0x00000040 },
        { 2, KEY_MENU           , 0x00000400 },
        { 2, KEY_PRINT          , 0x00000800 },   // mode key
        { 0, 0, 0 }
};


long __attribute__((naked)) wrap_kbd_p1_f() ;

void wait_until_remote_button_is_released(void)
{

long x[3];
int count1;
int count2;
int tick,tick2,tick3;
int nSW;
int prev_usb_power,cur_usb_power;
 // ------ add by Masuji SUTO (start) --------------
    static int nMode;
 // ------ add by Masuji SUTO (end)   --------------

asm volatile ("STMFD SP!, {R0-R11,LR}\n"); // store R0-R11 and LR in stack
debug_led(1);
tick = get_tick_count();
tick2 = tick;
static long usb_physw[3];
if (conf.synch_enable && conf.ricoh_ca1_mode && conf.remote_enable && (!shooting_get_drive_mode()|| ((shooting_get_drive_mode()==2) && state_shooting_progress != SHOOTING_PROGRESS_PROCESSING)))  // synch mode enable so wait for USB to disconnect
  {
// ------ add by Masuji SUTO (start) --------------
        nMode=0;
        usb_physw[2] = 0;                                             // makes sure USB bit is cleared.
        _kbd_read_keys_r2(usb_physw);
        if((usb_physw[2] & USB_MASK)==USB_MASK) nMode=1;
// ------ add by Masuji SUTO (end)   --------------
     if(conf.ricoh_ca1_mode && conf.remote_enable)
     {
        if(shooting_get_drive_mode()==1 && state_shooting_progress == SHOOTING_PROGRESS_PROCESSING){                    //continuous-shooting mode
                if(conf.bracket_type>2){
                        if(shoot_counter<2) shutter_int=3;
                        shoot_counter--;
                        }
                else{
                        prev_usb_power=0;
                        nSW = 0;
                        do
                                {     
                                usb_physw[2] = 0;                                             // makes sure USB bit is cleared.
                                _kbd_read_keys_r2(usb_physw);
                                cur_usb_power = (usb_physw[2] & USB_MASK)==USB_MASK;
                                if(cur_usb_power){
                                        if(!prev_usb_power){
                                                tick2 = get_tick_count();
                                                prev_usb_power=cur_usb_power;
                                                }
                                        else{
                                                if((int)get_tick_count()-tick2>1000) {debug_led(0);}
                                                }
                                        }
                                else{
                                        if(prev_usb_power){
                                                tick3 = (int)get_tick_count()-tick2;
                                                if(nSW==10) {
                                                        if(tick3>50) shutter_int=1;
                                                        nSW=20;
                                                        }
                                                if(nSW==0 && tick3>0) {
                                                        if(tick3<50) {
                                                        nSW=10;
                                                        }
                                                else{
                                                        if(tick3>1000) shutter_int=1;
                                                                nSW=20;
                                                        }
                                                }
                                                prev_usb_power=cur_usb_power;
                                                }
                                        }
                                if((int)get_tick_count()-tick >= DELAY_TIMEOUT) {nSW=20;shutter_int=2;}
                                }
                         while(nSW<20);
                         }
                }               //continuous-shooting mode 
                else{           // normal mode
                        shoot_counter=0;
                        if(conf.bracket_type>2){
                                shoot_counter=(conf.bracket_type-2)*2;
                                }
        do
           {
           _platformsub_kbd_fetch_data(x);
           usb_physw[2] = 0;
          _kbd_read_keys_r2(usb_physw);            
           }

// ------ modif by Masuji SUTO (start) --------------
    while(((((usb_physw[2] & USB_MASK)!=USB_MASK) && (nMode==0)) || (((usb_physw[2] & USB_MASK)==USB_MASK) && (nMode==1))) && ((int)get_tick_count()-tick < DELAY_TIMEOUT));
// ------ modif by Masuji SUTO (end)   --------------
        }
       } // ricoh ca-1 mode

else

       {
         do
          {
           _platformsub_kbd_fetch_data(x);
           usb_physw[2] = 0;
          _kbd_read_keys_r2(usb_physw);           
           }
        while((usb_physw[2]&USB_MASK) &&  ((int)get_tick_count()-tick < DELAY_TIMEOUT));

        }

  } // synch enable


if (conf.synch_delay_enable && conf.synch_delay_value>0)       // if delay is switched on and greater than 0
  {
    for (count1=0;count1<conf.synch_delay_value+(conf.synch_delay_coarse_value*1000);count1++) // wait delay_value * 0.1ms
    {
      for (count2=0;count2<1400;count2++)            // delay approx. 0.1ms
        {
        }
     }
  }

debug_led(0);

asm volatile ("LDMFD SP!, {R0-R11,LR}\n"); // restore R0-R11 and LR from stack
}




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()
{
    /* 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!, {R1-R5,LR}\n"
                "MOV     R4, #0\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];
        
        _platformsub_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];

        } 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);

        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;
                }
        if (conf.remote_enable) {
                physw_status[2] = physw_status[2] & ~(SD_READONLY_FLAG | USB_MASK);
        } else {
                physw_status[2] = physw_status[2] & ~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;
                }
        }
}


int get_usb_power(int edge)
{
        int x;

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

long kbd_use_zoom_as_mf() {
 return 0;
}