2aee04366f
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@2372 a1c6a512-1295-4272-9138-f99709370657
333 lines
8.2 KiB
C
333 lines
8.2 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Daniel Stenberg
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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/*
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* Archos Jukebox Recorder button functions
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*/
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#include <stdlib.h>
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#include "config.h"
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#include "sh7034.h"
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#include "system.h"
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#include "button.h"
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#include "kernel.h"
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#include "backlight.h"
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#include "adc.h"
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struct event_queue button_queue;
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long last_keypress;
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/* how often we check to see if a button is pressed */
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#define POLL_FREQUENCY HZ/20
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/* how long until repeat kicks in */
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#define REPEAT_START 6
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/* the speed repeat starts at */
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#define REPEAT_INTERVAL_START 4
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/* speed repeat finishes at */
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#define REPEAT_INTERVAL_FINISH 2
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static int repeat_mask = DEFAULT_REPEAT_MASK;
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static int release_mask = DEFAULT_RELEASE_MASK;
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static int button_read(void);
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static void button_tick(void)
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{
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static int tick=0;
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static int count=0;
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static int lastbtn=0;
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static int repeat_speed=REPEAT_INTERVAL_START;
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static bool repeat=false;
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int diff;
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/* only poll every X ticks */
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if ( ++tick >= POLL_FREQUENCY )
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{
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bool post = false;
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int btn = button_read();
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/* Find out if a key has been released */
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diff = btn ^ lastbtn;
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if((btn & diff) == 0)
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{
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if(diff & release_mask)
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queue_post(&button_queue, BUTTON_REL | diff, NULL);
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}
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if ( btn )
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{
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/* normal keypress */
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if ( btn != lastbtn )
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{
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post = true;
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repeat = false;
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repeat_speed = REPEAT_INTERVAL_START;
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}
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else /* repeat? */
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{
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if ( repeat )
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{
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count--;
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if (count == 0) {
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post = true;
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/* yes we have repeat */
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repeat_speed--;
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if (repeat_speed < REPEAT_INTERVAL_FINISH)
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repeat_speed = REPEAT_INTERVAL_FINISH;
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count = repeat_speed;
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}
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}
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else
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{
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if(btn & repeat_mask ||
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#ifdef HAVE_RECORDER_KEYPAD
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btn == BUTTON_OFF)
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#else
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btn == BUTTON_STOP)
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#endif
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{
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if (count++ > REPEAT_START)
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{
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/* Only repeat if a repeatable key is pressed */
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if(btn & repeat_mask)
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{
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post = true;
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repeat = true;
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/* initial repeat */
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count = REPEAT_INTERVAL_START;
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}
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/* If the OFF button is pressed long enough,
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and we are still alive, then the unit must be
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connected to a charger. Therefore we will
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reboot and let the original firmware handle
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the charging. */
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#ifdef HAVE_RECORDER_KEYPAD
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if(btn == BUTTON_OFF)
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#elif HAVE_PLAYER_KEYPAD
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if(btn == BUTTON_STOP)
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#endif
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system_reboot();
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}
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}
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else
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{
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count = 0;
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}
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}
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}
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if ( post )
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{
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if(repeat)
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queue_post(&button_queue, BUTTON_REPEAT | btn, NULL);
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else
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queue_post(&button_queue, btn, NULL);
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backlight_on();
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last_keypress = current_tick;
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}
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}
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else
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{
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repeat = false;
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count = 0;
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}
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lastbtn = btn & ~(BUTTON_REL | BUTTON_REPEAT);
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tick = 0;
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}
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backlight_tick();
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}
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int button_get(bool block)
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{
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struct event ev;
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if ( block || !queue_empty(&button_queue) ) {
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queue_wait(&button_queue, &ev);
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return ev.id;
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}
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return BUTTON_NONE;
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}
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int button_get_w_tmo(int ticks)
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{
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struct event ev;
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unsigned int timeout = current_tick + ticks;
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while (TIME_BEFORE( current_tick, timeout ))
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{
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if(!queue_empty(&button_queue))
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{
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queue_wait(&button_queue, &ev);
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return ev.id;
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}
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yield();
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}
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return BUTTON_NONE;
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}
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int button_set_repeat(int newmask)
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{
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int oldmask = repeat_mask;
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repeat_mask = newmask;
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return oldmask;
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}
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int button_set_release(int newmask)
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{
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int oldmask = release_mask;
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release_mask = newmask;
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return oldmask;
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}
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#ifdef HAVE_RECORDER_KEYPAD
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/* AJBR buttons are connected to the CPU as follows:
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*
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* ON and OFF are connected to separate port B input pins.
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*
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* F1, F2, F3, and UP are connected to the AN4 analog input, each through
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* a separate voltage divider. The voltage on AN4 depends on which button
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* (or none, or a combination) is pressed.
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*
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* DOWN, PLAY, LEFT, and RIGHT are likewise connected to AN5. */
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/* Button analog voltage levels */
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#define LEVEL1 250
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#define LEVEL2 450
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#define LEVEL3 650
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#define LEVEL4 850
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/*
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*Initialize buttons
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*/
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void button_init()
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{
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#ifndef SIMULATOR
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/* Set PB4 and PB8 as input pins */
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PBCR1 &= 0xfffc; /* PB8MD = 00 */
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PBCR2 &= 0xfcff; /* PB4MD = 00 */
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PBIOR &= ~(PBDR_BTN_ON|PBDR_BTN_OFF); /* Inputs */
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#endif
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queue_init(&button_queue);
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tick_add_task(button_tick);
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}
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/*
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* Get button pressed from hardware
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*/
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static int button_read(void)
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{
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int btn = BUTTON_NONE;
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/* Check port B pins for ON and OFF */
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int data = PBDR;
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if ((data & PBDR_BTN_ON) == 0)
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btn |= BUTTON_ON;
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else if ((data & PBDR_BTN_OFF) == 0)
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btn |= BUTTON_OFF;
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/* Check F1-3 and UP */
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data = adc_read(ADC_BUTTON_ROW1);
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if (data >= LEVEL4)
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btn |= BUTTON_F3;
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else if (data >= LEVEL3)
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btn |= BUTTON_UP;
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else if (data >= LEVEL2)
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btn |= BUTTON_F2;
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else if (data >= LEVEL1)
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btn |= BUTTON_F1;
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/* Check DOWN, PLAY, LEFT, RIGHT */
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data = adc_read(ADC_BUTTON_ROW2);
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if (data >= LEVEL4)
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btn |= BUTTON_DOWN;
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else if (data >= LEVEL3)
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btn |= BUTTON_PLAY;
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else if (data >= LEVEL2)
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btn |= BUTTON_LEFT;
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else if (data >= LEVEL1)
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btn |= BUTTON_RIGHT;
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return btn;
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}
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#elif HAVE_PLAYER_KEYPAD
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/* The player has two buttons on port pins:
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STOP: PA11
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ON: PA5
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The rest are on analog inputs:
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LEFT: AN0
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MENU: AN1
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RIGHT: AN2
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PLAY: AN3
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*/
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void button_init(void)
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{
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/* set port pins as input */
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PAIOR &= ~0x820;
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queue_init(&button_queue);
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tick_add_task(button_tick);
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last_keypress = current_tick;
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}
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static int button_read(void)
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{
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int porta = PADR;
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int btn = BUTTON_NONE;
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/* buttons are active low */
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if(adc_read(0) < 0x180)
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btn |= BUTTON_LEFT;
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if(adc_read(1) < 0x180)
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btn |= BUTTON_MENU;
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if(adc_read(2) < 0x180)
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btn |= BUTTON_RIGHT;
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if(adc_read(3) < 0x180)
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btn |= BUTTON_PLAY | BUTTON_UP;
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if ( !(porta & 0x20) )
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btn |= BUTTON_ON;
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if ( !(porta & 0x800) )
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btn |= BUTTON_STOP | BUTTON_DOWN;
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return btn;
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}
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#endif
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/* -----------------------------------------------------------------
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* local variables:
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* eval: (load-file "../rockbox-mode.el")
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* end:
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*/
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