d872538195
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3030 42af7a65-404d-4744-a932-0658087f49c3
165 lines
4.9 KiB
C
Executable File
165 lines
4.9 KiB
C
Executable File
/****************************************************************************
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* configs/sam3u-ek/src/up_leds.c
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*
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* Copyright (C) 2010 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include "at91uc3_config.h"
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#include <sys/types.h>
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#include <stdint.h>
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#include <nuttx/irq.h>
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#include <arch/irq.h>
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#include <arch/board/board.h>
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#include "at91uc3_internal.h"
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#include "avr32dev1_internal.h"
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#ifdef CONFIG_ARCH_BUTTONS
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: up_buttoninit
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****************************************************************************/
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void up_buttoninit(void)
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{
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(void)at91uc3_configgpio(PINMUX_GPIO_BUTTON1);
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(void)at91uc3_configgpio(PINMUX_GPIO_BUTTON2);
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}
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/****************************************************************************
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* Name: up_buttons
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****************************************************************************/
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uint8_t up_buttons(void)
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{
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uint8_t retval;
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retval = at91uc3_gpioread(PINMUX_GPIO_BUTTON1) ? 0 : BUTTON1;
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retval |= at91uc3_gpioread(PINMUX_GPIO_BUTTON2) ? 0 : BUTTON2;
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return retval;
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}
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/****************************************************************************
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* Name: up_irqbutton1
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****************************************************************************/
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#ifdef CONFIG_AVR32_GPIOIRQ
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xcpt_t up_irqbutton1(xcpt_t irqhandler)
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{
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#ifdef CONFIG_AVR32DEV_BUTTON1_IRQ
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xcpt_t oldhandler;
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/* Attach the handler */
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gpio_irqattach(GPIO_BUTTON1_IRQ, irqhandler, &oldhandler);
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/* Enable/disable the interrupt */
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if (irqhandler)
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{
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gpio_irqenable(GPIO_BUTTON1_IRQ);
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}
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else
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{
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gpio_irqdisable(GPIO_BUTTON1_IRQ);
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}
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/* Return the old button handler (so that it can be restored) */
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return oldhandler;
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#else
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return NULL;
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#endif
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}
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#endif
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/****************************************************************************
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* Name: up_irqbutton2
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****************************************************************************/
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#ifdef CONFIG_AVR32_GPIOIRQ
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xcpt_t up_irqbutton2(xcpt_t irqhandler)
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{
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#ifdef CONFIG_AVR32DEV_BUTTON2_IRQ
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xcpt_t oldhandler;
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/* Attach the handler */
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gpio_irqattach(GPIO_BUTTON2_IRQ, irqhandler, &oldhandler);
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/* Enable/disable the interrupt */
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if (irqhandler)
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{
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gpio_irqenable(GPIO_BUTTON2_IRQ);
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}
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else
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{
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gpio_irqdisable(GPIO_BUTTON2_IRQ);
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}
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/* Return the old button handler (so that it can be restored) */
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return oldhandler;
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#else
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return NULL;
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#endif
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}
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#endif
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#endif /* CONFIG_ARCH_BUTTONS */
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