157 lines
4.3 KiB
C
157 lines
4.3 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) 2009 by Mark Arigo
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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 "system.h"
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#include "kernel.h"
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#include "button.h"
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#include "backlight.h"
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#if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925)
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#include "powermgmt.h"
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#include "adc.h"
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static int int_btn = BUTTON_NONE;
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static unsigned int rec_switch;
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void button_init_device(void)
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{
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/* remote interrupt - low when key is pressed */
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GPIOD_ENABLE |= 0x01;
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GPIOD_OUTPUT_EN &= ~0x01;
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/* disable/reset int */
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GPIOD_INT_EN &= ~0x01;
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GPIOD_INT_CLR |= 0x01;
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/* enable int */
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GPIOD_INT_LEV &= ~0x01;
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GPIOD_INT_EN |= 0x01;
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/* remote PLAY */
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GPIOD_ENABLE |= 0x02;
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GPIOD_OUTPUT_EN &= ~0x02;
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/* current record switch state */
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rec_switch = ~GPIOA_INPUT_VAL & 0x40;
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}
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/* Remote buttons */
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void remote_int(void)
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{
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int state = 0x01 & ~GPIOD_INPUT_VAL;
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GPIO_CLEAR_BITWISE(GPIOD_INT_EN, 0x01);
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GPIO_WRITE_BITWISE(GPIOD_INT_LEV, state, 0x01);
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if (state != 0)
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{
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/* necessary delay 1msec */
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udelay(1000);
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unsigned int val = adc_scan(ADC_REMOTE);
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if (val > 750) int_btn = BUTTON_RC_MINUS;
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else
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if (val > 375) int_btn = BUTTON_RC_PLUS;
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else
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if (val > 100) int_btn = BUTTON_RC_REW;
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else
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int_btn = BUTTON_RC_FFWD;
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}
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else
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int_btn = BUTTON_NONE;
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GPIO_SET_BITWISE(GPIOD_INT_CLR, 0x01);
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GPIO_SET_BITWISE(GPIOD_INT_EN, 0x01);
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}
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#else
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void button_init_device(void)
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{
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/* nothing */
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}
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#endif /* (SAMSUNG_YH920) || (SAMSUNG_YH925) */
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bool button_hold(void)
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{
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return (~GPIOA_INPUT_VAL & 0x1);
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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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#if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925)
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int btn = int_btn;
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#else
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int btn = BUTTON_NONE;
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#endif /* (SAMSUNG_YH920) || (SAMSUNG_YH925) */
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static bool hold_button = false;
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#ifndef BOOTLOADER
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bool hold_button_old;
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#endif
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/* Hold */
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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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/* device buttons */
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if (!hold_button)
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{
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if (~GPIOA_INPUT_VAL & 0x04) btn |= BUTTON_LEFT;
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if (~GPIOA_INPUT_VAL & 0x20) btn |= BUTTON_RIGHT;
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if (~GPIOA_INPUT_VAL & 0x10) btn |= BUTTON_UP;
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if (~GPIOA_INPUT_VAL & 0x08) btn |= BUTTON_DOWN;
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if (~GPIOA_INPUT_VAL & 0x02) btn |= BUTTON_FFWD;
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if (~GPIOA_INPUT_VAL & 0x80) btn |= BUTTON_REW;
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#if defined(SAMSUNG_YH820)
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if (~GPIOA_INPUT_VAL & 0x40) btn |= BUTTON_REC;
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#else
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if ((~GPIOA_INPUT_VAL & 0x40) != rec_switch)
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{
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if (rec_switch) {
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queue_post(&button_queue,BUTTON_REC_SW_OFF,0);
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queue_post(&button_queue,BUTTON_REC_SW_OFF|BUTTON_REL,0);
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}
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else {
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queue_post(&button_queue,BUTTON_REC_SW_ON,0);
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queue_post(&button_queue,BUTTON_REC_SW_ON|BUTTON_REL,0);
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}
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rec_switch = ~GPIOA_INPUT_VAL & 0x40;
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backlight_on();
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reset_poweroff_timer();
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}
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#endif
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#if defined(SAMSUNG_YH820)
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if ( GPIOB_INPUT_VAL & 0x80) btn |= BUTTON_PLAY;
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#elif defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925)
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if ( GPIOD_INPUT_VAL & 0x04) btn |= BUTTON_PLAY;
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if ( GPIOD_INPUT_VAL & 0x02) btn |= BUTTON_RC_PLAY; /* Remote PLAY */
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#endif
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}
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return btn;
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}
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