241 lines
7.7 KiB
C
241 lines
7.7 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) 2006 by Jonathan Gordon
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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#include "config.h"
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#include "cpu.h"
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#include "system.h"
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#include "button.h"
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#include "backlight.h"
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#include "adc.h"
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#include "lcd-remote.h"
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void button_init_device(void)
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{
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/* Set GPIO33, GPIO37, GPIO38 and GPIO52 as general purpose inputs */
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GPIO1_FUNCTION |= 0x00100062;
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GPIO1_ENABLE &= ~0x00100060;
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}
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bool button_hold(void)
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{
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return (GPIO1_READ & 0x00000002)?true:false;
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}
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static bool remote_button_hold_only(void)
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{
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if(remote_type() == REMOTETYPE_H300_NONLCD)
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return adc_scan(ADC_REMOTE)<0x0d; /* hold should be 0x00 */
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else
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return (GPIO1_READ & 0x00100000)?true:false;
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}
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/* returns true only if there is remote present */
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bool remote_button_hold(void)
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{
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/* H300's NON-LCD remote doesn't set the "remote present" bit */
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if(remote_type() == REMOTETYPE_H300_NONLCD)
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return remote_button_hold_only();
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else
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return ((GPIO_READ & 0x40000000) == 0)?remote_button_hold_only():false;
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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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int button_read_device(void)
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{
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int btn = BUTTON_NONE;
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int data;
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static bool hold_button = false;
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static bool remote_hold_button = false;
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static int prev_data = 0xff;
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static int last_valid = 0xff;
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#ifndef BOOTLOADER
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bool hold_button_old;
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bool remote_hold_button_old;
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#endif
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/* normal buttons */
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#ifndef BOOTLOADER
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hold_button_old = hold_button;
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#endif
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hold_button = button_hold();
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#ifndef BOOTLOADER
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if (hold_button != hold_button_old)
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backlight_hold_changed(hold_button);
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#endif
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if (!hold_button)
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{
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data = adc_scan(ADC_BUTTONS);
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/* ADC debouncing: Only accept new reading if it's
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* stable (+/-1). Use latest stable value otherwise. */
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if ((unsigned)(data - prev_data + 1) <= 2)
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last_valid = data;
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prev_data = data;
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data = last_valid;
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if (data < 0xf0)
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{
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if (data < 0x80)
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if (data < 0x30)
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if (data < 0x18)
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btn = BUTTON_SELECT;
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else
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btn = BUTTON_UP;
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else
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if (data < 0x50)
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btn = BUTTON_LEFT;
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else
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btn = BUTTON_DOWN;
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else
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if (data < 0xb0)
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if (data < 0xa0)
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btn = BUTTON_RIGHT;
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else
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btn = BUTTON_OFF;
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else
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if (data < 0xd0)
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btn = BUTTON_MODE;
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else
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btn = BUTTON_REC;
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}
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}
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/* remote buttons */
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#ifndef BOOTLOADER
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remote_hold_button_old = remote_hold_button;
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#endif
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remote_hold_button = remote_button_hold_only();
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#ifndef BOOTLOADER
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if (remote_hold_button != remote_hold_button_old)
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remote_backlight_hold_changed(remote_hold_button);
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#endif
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if (!remote_hold_button)
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{
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data = adc_scan(ADC_REMOTE);
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switch (remote_type())
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{
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case REMOTETYPE_H100_LCD:
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if (data < 0xf5)
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{
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if (data < 0x73)
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if (data < 0x3f)
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if (data < 0x25)
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if(data < 0x0c)
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btn |= BUTTON_RC_STOP;
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else
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btn |= BUTTON_RC_VOL_DOWN;
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else
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btn |= BUTTON_RC_MODE;
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else
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if (data < 0x5a)
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btn |= BUTTON_RC_VOL_UP;
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else
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btn |= BUTTON_RC_BITRATE;
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else
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if (data < 0xa8)
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if (data < 0x8c)
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btn |= BUTTON_RC_REC;
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else
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btn |= BUTTON_RC_SOURCE;
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else
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if (data < 0xdf)
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if(data < 0xc5)
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btn |= BUTTON_RC_FF;
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else
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btn |= BUTTON_RC_MENU;
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else
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btn |= BUTTON_RC_REW;
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}
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break;
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case REMOTETYPE_H300_LCD:
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if (data < 0xf5)
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{
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if (data < 0x73)
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if (data < 0x42)
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if (data < 0x27)
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if(data < 0x0c)
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btn |= BUTTON_RC_VOL_DOWN;
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else
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btn |= BUTTON_RC_FF;
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else
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btn |= BUTTON_RC_STOP;
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else
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if (data < 0x5b)
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btn |= BUTTON_RC_MODE;
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else
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btn |= BUTTON_RC_REC;
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else
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if (data < 0xab)
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if (data < 0x8e)
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btn |= BUTTON_RC_ON;
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else
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btn |= BUTTON_RC_BITRATE;
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else
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if (data < 0xde)
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if(data < 0xc5)
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btn |= BUTTON_RC_SOURCE;
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else
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btn |= BUTTON_RC_VOL_UP;
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else
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btn |= BUTTON_RC_REW;
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}
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break;
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case REMOTETYPE_H300_NONLCD:
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if (data < 0xf1)
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{
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if (data < 0x7d)
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if (data < 0x25)
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btn |= BUTTON_RC_FF;
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else
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btn |= BUTTON_RC_REW;
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else
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if (data < 0xd5)
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btn |= BUTTON_RC_VOL_DOWN;
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else
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btn |= BUTTON_RC_VOL_UP;
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}
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break;
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}
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}
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data = GPIO1_READ;
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if (!hold_button && ((data & 0x20) == 0))
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btn |= BUTTON_ON;
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if (!remote_hold_button && ((data & 0x40) == 0))
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switch(remote_type())
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{
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case REMOTETYPE_H100_LCD:
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case REMOTETYPE_H300_NONLCD:
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btn |= BUTTON_RC_ON;
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break;
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case REMOTETYPE_H300_LCD:
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btn |= BUTTON_RC_MENU;
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break;
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}
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return btn;
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}
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