* arch/arm/src/sam34/sam_gpio.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __ARCH_ARM_SRC_SAM34_SAM_GPIO_H
#define __ARCH_ARM_SRC_SAM34_SAM_GPIO_H
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include "chip.h"
#if defined(CONFIG_ARCH_CHIP_SAM3U)
# include "sam3u_gpio.h"
#elif defined(CONFIG_ARCH_CHIP_SAM3X) || defined(CONFIG_ARCH_CHIP_SAM3A)
# include "sam3x_gpio.h"
#elif defined(CONFIG_ARCH_CHIP_SAM4CM)
# include "sam4cm_gpio.h"
#elif defined(CONFIG_ARCH_CHIP_SAM4E)
# include "sam4e_gpio.h"
#elif defined(CONFIG_ARCH_CHIP_SAM4L)
# include "sam4l_gpio.h"
#elif defined(CONFIG_ARCH_CHIP_SAM4S)
# include "sam4s_gpio.h"
#else
# error Unrecognized SAM architecture
#endif
* Pre-processor Definitions
****************************************************************************/
#if defined(CONFIG_SAM34_GPIOA_IRQ) || defined(CONFIG_SAM34_GPIOB_IRQ) || \
defined(CONFIG_SAM34_GPIOC_IRQ) || defined(CONFIG_SAM34_GPIOD_IRQ) || \
defined(CONFIG_SAM34_GPIOE_IRQ) || defined(CONFIG_SAM34_GPIOF_IRQ)
# define CONFIG_SAM34_GPIO_IRQ 1
#else
# undef CONFIG_SAM34_GPIO_IRQ
#endif
* Public Function Prototypes
****************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
* Name: sam_gpioirqinitialize
*
* Description:
* Initialize logic to support a second level of interrupt decoding for
* GPIO pins.
*
****************************************************************************/
#ifdef CONFIG_SAM34_GPIO_IRQ
void sam_gpioirqinitialize(void);
#else
# define sam_gpioirqinitialize()
#endif
* Name: sam_configgpio
*
* Description:
* Configure a GPIO pin based on bit-encoded description of the pin.
*
****************************************************************************/
int sam_configgpio(gpio_pinset_t cfgset);
* Name: sam_gpiowrite
*
* Description:
* Write one or zero to the selected GPIO pin
*
****************************************************************************/
void sam_gpiowrite(gpio_pinset_t pinset, bool value);
* Name: sam_gpioread
*
* Description:
* Read one or zero from the selected GPIO pin
*
****************************************************************************/
bool sam_gpioread(gpio_pinset_t pinset);
* Name: sam_gpioirq
*
* Description:
* Configure an interrupt for the specified GPIO pin.
*
****************************************************************************/
#ifdef CONFIG_SAM34_GPIO_IRQ
void sam_gpioirq(gpio_pinset_t pinset);
#else
# define sam_gpioirq(pinset)
#endif
* Name: sam_gpioirqenable
*
* Description:
* Enable the interrupt for specified GPIO IRQ
*
****************************************************************************/
#ifdef CONFIG_SAM34_GPIO_IRQ
void sam_gpioirqenable(int irq);
#else
# define sam_gpioirqenable(irq)
#endif
* Name: sam_gpioirqdisable
*
* Description:
* Disable the interrupt for specified GPIO IRQ
*
****************************************************************************/
#ifdef CONFIG_SAM34_GPIO_IRQ
void sam_gpioirqdisable(int irq);
#else
# define sam_gpioirqdisable(irq)
#endif
* Function: sam_dumpgpio
*
* Description:
* Dump all GPIO registers associated with the base address of the provided
* pinset.
*
****************************************************************************/
#ifdef CONFIG_DEBUG_GPIO_INFO
int sam_dumpgpio(uint32_t pinset, const char *msg);
#else
# define sam_dumpgpio(p,m)
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif
#endif