100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
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/***************************************************************************
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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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*
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*
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* Copyright (C) 2009 by Jorge Pinto
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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 "at91sam9260.h"
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#include "button.h"
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#define BUTTON_01 AT91C_PIO_PB4
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#define BUTTON_02 AT91C_PIO_PB5
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#define BUTTON_03 AT91C_PIO_PB27
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#define BUTTON_04 AT91C_PIO_PB26
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#define BUTTON_05 AT91C_PIO_PB25
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#define BUTTON_06 AT91C_PIO_PB24
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#define BUTTON_07 AT91C_PIO_PB22
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#define BUTTON_08 AT91C_PIO_PB23
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void button_init_device(void)
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{
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/* Enable the periph clock for the PIO controller */
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/* This is mandatory when PIO are configured as input */
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AT91C_PMC_PCER = (1 << AT91C_ID_PIOB);
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/* Set the PIO line in input */
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AT91C_PIOB_ODR = (BUTTON_01 |
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BUTTON_02 |
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BUTTON_03 |
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BUTTON_04 |
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BUTTON_05 |
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BUTTON_06 |
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BUTTON_07 |
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BUTTON_08);
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/* Set the PIO controller in PIO mode instead of peripheral mode */
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AT91C_PIOB_PER = (BUTTON_01 |
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BUTTON_02 |
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BUTTON_03 |
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BUTTON_04 |
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BUTTON_05 |
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BUTTON_06 |
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BUTTON_07 |
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BUTTON_08);
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}
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bool button_hold(void)
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{
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return (0);
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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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uint32_t buttons = AT91C_PIOB_PDSR;
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uint32_t ret = 0;
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if ((buttons & BUTTON_01) == 0)
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ret |= BUTTON_UP;
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if ((buttons & BUTTON_02) == 0)
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ret |= BUTTON_RIGHT;
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if ((buttons & BUTTON_03) == 0)
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ret |= BUTTON_PLAY;
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if ((buttons & BUTTON_04) == 0)
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ret |= BUTTON_SELECT;
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if ((buttons & BUTTON_05) == 0)
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ret |= BUTTON_LEFT;
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if ((buttons & BUTTON_06) == 0)
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ret |= BUTTON_DOWN;
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if ((buttons & BUTTON_07) == 0)
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ret |= BUTTON_STOP;
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if ((buttons & BUTTON_08) == 0)
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ret |= BUTTON_MENU;
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return ret;
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}
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