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|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Björn Stenberg
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdlib.h>
#include "config.h"
#include "button.h"
#include "kernel.h"
#include "debug.h"
#include "backlight.h"
#include "misc.h"
#include <SDL.h>
extern int screenhack_handle_events(bool *release);
struct event_queue button_queue;
static int button_state = 0; /* keeps track of pressed keys */
static long lastbtn; /* Last valid button status */
/* how often we check to see if a button is pressed */
#define POLL_FREQUENCY HZ/25
/* how long until repeat kicks in */
#define REPEAT_START 8
/* the speed repeat starts at */
#define REPEAT_INTERVAL_START 4
/* speed repeat finishes at */
#define REPEAT_INTERVAL_FINISH 2
/* mostly copied from real button.c */
void button_read (void);
static void button_tick(void)
{
static int tick = 0;
static int count = 0;
static int repeat_speed = REPEAT_INTERVAL_START;
static int repeat_count = 0;
static bool repeat = false;
int diff;
int btn;
/* only poll every X ticks */
if ( ++tick >= POLL_FREQUENCY )
{
bool post = false;
button_read();
btn = button_state;
/* Find out if a key has been released */
diff = btn ^ lastbtn;
if(diff && (btn & diff) == 0)
{
queue_post(&button_queue, BUTTON_REL | diff, NULL);
}
else
{
if ( btn )
{
/* normal keypress */
if ( btn != lastbtn )
{
post = true;
repeat = false;
repeat_speed = REPEAT_INTERVAL_START;
}
else /* repeat? */
{
if ( repeat )
{
count--;
if (count == 0) {
post = true;
/* yes we have repeat */
repeat_speed--;
if (repeat_speed < REPEAT_INTERVAL_FINISH)
repeat_speed = REPEAT_INTERVAL_FINISH;
count = repeat_speed;
repeat_count++;
}
}
else
{
if (count++ > REPEAT_START)
{
post = true;
repeat = true;
repeat_count = 0;
/* initial repeat */
count = REPEAT_INTERVAL_START;
}
}
}
if ( post )
{
if (repeat)
queue_post(&button_queue, BUTTON_REPEAT | btn, NULL);
else
queue_post(&button_queue, btn, NULL);
#ifdef HAVE_REMOTE_LCD
if(btn & BUTTON_REMOTE)
remote_backlight_on();
else
#endif
backlight_on();
}
}
else
{
repeat = false;
count = 0;
}
}
lastbtn = btn & ~(BUTTON_REL | BUTTON_REPEAT);
tick = 0;
}
}
/*
* Read SDL keys and translate to rockbox buttons
*/
void button_read (void)
{
int k;
bool release = false; /* is this a release event */
int ev = screenhack_handle_events(&release);
switch (ev)
{
case SDLK_KP4:
case SDLK_LEFT:
case SDLK_4:
k = BUTTON_LEFT;
break;
case SDLK_KP6:
case SDLK_RIGHT:
case SDLK_6:
k = BUTTON_RIGHT;
break;
case SDLK_KP8:
case SDLK_UP:
case SDLK_8:
#ifdef BUTTON_UP
k = BUTTON_UP;
#elif defined BUTTON_SCROLL_BACK
k = BUTTON_SCROLL_BACK;
#elif defined BUTTON_PLAY
k = BUTTON_PLAY;
#endif
break;
case SDLK_KP2:
case SDLK_DOWN:
case SDLK_2:
#ifdef BUTTON_DOWN
k = BUTTON_DOWN;
#elif defined BUTTON_SCROLL_FWD
k = BUTTON_SCROLL_FWD;
#elif defined BUTTON_STOP
k = BUTTON_STOP;
#endif
break;
#ifdef BUTTON_ON
case SDLK_KP_PLUS:
case SDLK_q:
k = BUTTON_ON;
break;
#endif
#ifdef BUTTON_OFF
case SDLK_KP_ENTER:
case SDLK_a:
k = BUTTON_OFF;
break;
#endif
#ifdef BUTTON_POWER
case SDLK_KP_MINUS:
case SDLK_p:
k = BUTTON_POWER;
#endif
#ifdef BUTTON_F1
case SDLK_KP_DIVIDE:
case SDLK_F1:
k = BUTTON_F1;
break;
case SDLK_KP_MULTIPLY:
case SDLK_F2:
k = BUTTON_F2;
break;
case SDLK_KP_MINUS:
case SDLK_F3:
k = BUTTON_F3;
break;
#elif defined(BUTTON_REC)
case SDLK_KP_DIVIDE:
case SDLK_F1:
k = BUTTON_REC;
break;
#endif
case SDLK_KP5:
case SDLK_5:
case SDLK_SPACE:
#ifdef BUTTON_PLAY
k = BUTTON_PLAY;
#elif defined(BUTTON_SELECT)
k = BUTTON_SELECT;
#endif
break;
#ifdef HAVE_LCD_BITMAP
case SDLK_7:
if(!release)
screen_dump();
break;
#endif
case SDLK_KP_PERIOD:
case SDLK_INSERT:
#ifdef BUTTON_MENU
k = BUTTON_MENU;
#elif defined(BUTTON_MODE)
k = BUTTON_MODE;
#endif
break;
default:
k = 0;
if(ev)
DEBUGF("received ev %d\n", ev);
break;
}
if (release)
button_state &= ~k;
else
button_state |= k;
}
/* Again copied from real button.c... */
long button_get(bool block)
{
struct event ev;
if ( block || !queue_empty(&button_queue) )
{
queue_wait(&button_queue, &ev);
return ev.id;
}
return BUTTON_NONE;
}
long button_get_w_tmo(int ticks)
{
struct event ev;
queue_wait_w_tmo(&button_queue, &ev, ticks);
return (ev.id != SYS_TIMEOUT)? ev.id: BUTTON_NONE;
}
void button_init(void)
{
tick_add_task(button_tick);
}
int button_status(void)
{
return lastbtn;
}
void button_clear_queue(void)
{
queue_clear(&button_queue);
}
#ifdef HAS_BUTTON_HOLD
bool button_hold(void) {
/* temp fix for hold button on irivers */
return false;
}
#endif
#ifdef HAS_REMOTE_BUTTON_HOLD
bool remote_button_hold(void) {
/* temp fix for hold button on irivers */
return false;
}
#endif
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