source: trunk/platform/a550/kbd.c @ 515

#include "lolevel.h"
#include "platform.h"
#include "core.h"
#include "conf.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;
static int shoot_counter=0;
#define DELAY_TIMEOUT 10000

#define KEYS_MASK0 (0x00000000)
#define KEYS_MASK1 (0xc0000000)
#define KEYS_MASK2 (0x1FFF)

#define NEW_SS (0x2000)
#define SD_READONLY_FLAG (0x20000)
#define USB_MASK (0x40000)

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

long __attribute__((naked)) wrap_kbd_p1_f();

void wait_until_remote_button_is_released(void)
{
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()==1) || ((shooting_get_drive_mode()==2) && state_shooting_progress != SHOOTING_PROGRESS_PROCESSING)))                                   
 //  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{           //nomal mode 
                        shoot_counter=0;
                        if(conf.bracket_type>2){
                                shoot_counter=(conf.bracket_type-2)*2;
                                }
   do
         {     
            usb_physw[2] = 0;                                             // makes sure USB bit is cleared.
           _kbd_read_keys_r2(usb_physw);
           }
 //  while(((usb_physw[2] & USB_MASK)==USB_MASK) && ((int)get_tick_count()-tick < DELAY_TIMEOUT));
// ------ 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)   --------------
        } 
 }

else
   {

      do
          {
            usb_physw[2] = 0;                                             // makes sure USB bit is cleared.
           _kbd_read_keys_r2(usb_physw);
             
           }
        while((usb_physw[2]&USB_MASK) &&  ((int)get_tick_count()-tick < DELAY_TIMEOUT));
    }


  }

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(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);

                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;

    _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_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()
{
        long v = 1;
        static long zoom_key_pressed = 0;

        if (kbd_is_key_pressed(KEY_ZOOM_IN) && (mode_get()&MODE_MASK) == MODE_REC)
        {
                set_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)
        {
                set_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, 0x00000001 },//4057FE
                {2, KEY_DOWN, 0x00000002 },//4057FD
                {2, KEY_LEFT, 0x00000008 }, //4057F7
                {2, KEY_RIGHT, 0x00000004 }, //4057FB
                {2, KEY_SET, 0x00000100 }, //4056FF
                {2, KEY_SHOOT_FULL, 0x00000030 }, // 4057CF note 3 here!
                {2, KEY_SHOOT_HALF, 0x00000010 }, //4057EF
                {2, KEY_ZOOM_IN, 0x00000040 }, //4057BF
                {2, KEY_ZOOM_OUT, 0x00000080 }, //40577F
                {2, KEY_MENU, 0x00000200 }, //4055FF
                {2, KEY_DISPLAY, 0x00000400 }, //4053FF
                {2, KEY_PRINT, 0x00001000 }, //4047FF
                //{ KEY_ERASE   , 0x00000800 },
                //{ KEY_DUMMY   , 0x00001000 },
                { 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;
}