982ca0fb46
1. Fixes two of the comments to GPIO macros. They were copied but not updated. 2. Adds SET and CLR macros for controlling GPIO pins.
494 lines
23 KiB
C
494 lines
23 KiB
C
/*
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* Copyright (c) 2012, Texas Instruments Incorporated - http://www.ti.com/
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* All rights reserved.
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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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* 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 the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software 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 HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \addtogroup cc2538
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* @{
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*
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* \defgroup cc2538-gpio cc2538 General-Purpose I/O
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*
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* Driver for the cc2538 GPIO controller
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* @{
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*
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* \file
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* Header file with register and macro declarations for the cc2538 GPIO module
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*/
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#ifndef GPIO_H_
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#define GPIO_H_
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#include "reg.h"
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#include <stdint.h>
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/**
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* \brief Type definition for callbacks invoked by the GPIO ISRs
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* \param port The port that triggered the GPIO interrupt. \e port is passed
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* by its numeric representation (Port A:0, B:1 etc). Defines for
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* these numeric representations are GPIO_x_NUM
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* \param pin The pin that triggered the interrupt, specified by number
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* (0, 1, ..., 7)
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*
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* This is the prototype of a function pointer passed to
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* gpio_register_callback(). These callbacks are registered on a port/pin
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* basis. When a GPIO port generates an interrupt, if a callback has been
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* registered for the port/pin combination, the ISR will invoke it. The ISR
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* will pass the port/pin as arguments in that call, so that a developer can
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* re-use the same callback for multiple port/pin combinations
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*/
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typedef void (* gpio_callback_t)(uint8_t port, uint8_t pin);
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/*---------------------------------------------------------------------------*/
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/** \name Base addresses for the GPIO register instances
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* @{
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*/
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#define GPIO_A_BASE 0x400D9000 /**< GPIO_A */
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#define GPIO_B_BASE 0x400DA000 /**< GPIO_B */
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#define GPIO_C_BASE 0x400DB000 /**< GPIO_C */
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#define GPIO_D_BASE 0x400DC000 /**< GPIO_D */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name Numeric representation of the four GPIO ports
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* @{
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*/
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#define GPIO_A_NUM 0 /**< GPIO_A: 0 */
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#define GPIO_B_NUM 1 /**< GPIO_B: 1 */
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#define GPIO_C_NUM 2 /**< GPIO_C: 2 */
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#define GPIO_D_NUM 3 /**< GPIO_D: 3 */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/**
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* \name GPIO Manipulation macros
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* @{
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*/
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/** \brief Set pins with PIN_MASK of port with PORT_BASE to input.
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_SET_INPUT(PORT_BASE, PIN_MASK) \
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do { REG(PORT_BASE | GPIO_DIR) &= ~PIN_MASK; } while(0)
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/** \brief Set pins with PIN_MASK of port with PORT_BASE to output.
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_SET_OUTPUT(PORT_BASE, PIN_MASK) \
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do { REG(PORT_BASE | GPIO_DIR) |= PIN_MASK; } while(0)
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/** \brief Set pins with PIN_MASK of port with PORT_BASE high.
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_SET_PIN(PORT_BASE, PIN_MASK) \
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do { REG((PORT_BASE | GPIO_DATA) + (PIN_MASK << 2)) = 0xFF; } while(0)
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/** \brief Set pins with PIN_MASK of port with PORT_BASE low.
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_CLR_PIN(PORT_BASE, PIN_MASK) \
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do { REG((PORT_BASE | GPIO_DATA) + (PIN_MASK << 2)) = 0x00; } while(0)
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/** \brief Set pins with PIN_MASK of port with PORT_BASE to detect edge.
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_DETECT_EDGE(PORT_BASE, PIN_MASK) \
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do { REG(PORT_BASE | GPIO_IS) &= ~PIN_MASK; } while(0)
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/** \brief Set pins with PIN_MASK of port with PORT_BASE to detect level.
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_DETECT_LEVEL(PORT_BASE, PIN_MASK) \
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do { REG(PORT_BASE | GPIO_IS) |= PIN_MASK; } while(0)
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/** \brief Set pins with PIN_MASK of port with PORT_BASE to trigger an
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* interrupt on both edges.
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_TRIGGER_BOTH_EDGES(PORT_BASE, PIN_MASK) \
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do { REG(PORT_BASE | GPIO_IBE) |= PIN_MASK; } while(0)
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/** \brief Set pins with PIN_MASK of port with PORT_BASE to trigger an
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* interrupt on single edge (controlled by GPIO_IEV).
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_TRIGGER_SINGLE_EDGE(PORT_BASE, PIN_MASK) \
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do { REG(PORT_BASE | GPIO_IBE) &= ~PIN_MASK; } while(0)
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/** \brief Set pins with PIN_MASK of port with PORT_BASE to trigger an
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* interrupt on rising edge.
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_DETECT_RISING(PORT_BASE, PIN_MASK) \
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do { REG(PORT_BASE | GPIO_IEV) |= PIN_MASK; } while(0)
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/** \brief Set pins with PIN_MASK of port with PORT_BASE to trigger an
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* interrupt on falling edge.
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_DETECT_FALLING(PORT_BASE, PIN_MASK) \
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do { REG(PORT_BASE | GPIO_IEV) &= ~PIN_MASK; } while(0)
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/** \brief Enable interrupt triggering for pins with PIN_MASK of port with
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* PORT_BASE.
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_ENABLE_INTERRUPT(PORT_BASE, PIN_MASK) \
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do { REG(PORT_BASE | GPIO_IE) |= PIN_MASK; } while(0)
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/** \brief Disable interrupt triggering for pins with PIN_MASK of port with
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* PORT_BASE.
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_DISABLE_INTERRUPT(PORT_BASE, PIN_MASK) \
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do { REG(PORT_BASE | GPIO_IE) &= ~PIN_MASK; } while(0)
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/** \brief Configure the pin to be under peripheral control with PIN_MASK of
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* port with PORT_BASE.
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_PERIPHERAL_CONTROL(PORT_BASE, PIN_MASK) \
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do { REG(PORT_BASE | GPIO_AFSEL) |= PIN_MASK; } while(0)
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/** \brief Configure the pin to be software controlled with PIN_MASK of port
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* with PORT_BASE.
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* \param PORT_BASE GPIO Port register offset
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* \param PIN_MASK Pin number mask. Pin 0: 0x01, Pin 1: 0x02 ... Pin 7: 0x80
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*/
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#define GPIO_SOFTWARE_CONTROL(PORT_BASE, PIN_MASK) \
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do { REG(PORT_BASE | GPIO_AFSEL) &= ~PIN_MASK; } while(0)
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/**
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* \brief Converts a pin number to a pin mask
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* \param The pin number in the range [0..7]
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* \return A pin mask which can be used as the PIN_MASK argument of the macros
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* in this category
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*/
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#define GPIO_PIN_MASK(PIN) (1 << PIN)
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO Register offset declarations
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* @{
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*/
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#define GPIO_DATA 0x00000000 /**< Data register */
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#define GPIO_DIR 0x00000400 /**< Data direction register */
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#define GPIO_IS 0x00000404 /**< Interrupt sense */
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#define GPIO_IBE 0x00000408 /**< Interrupt both edges */
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#define GPIO_IEV 0x0000040C /**< Interrupt event */
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#define GPIO_IE 0x00000410 /**< Interrupt mask */
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#define GPIO_RIS 0x00000414 /**< Interrupt status - raw */
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#define GPIO_MIS 0x00000418 /**< Interrupt status - masked */
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#define GPIO_IC 0x0000041C /**< Interrupt clear */
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#define GPIO_AFSEL 0x00000420 /**< Mode control select */
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#define GPIO_GPIOLOCK 0x00000520 /**< GPIO commit unlock */
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#define GPIO_GPIOCR 0x00000524 /**< GPIO commit */
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#define GPIO_PMUX 0x00000700 /**< PMUX register */
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#define GPIO_P_EDGE_CTRL 0x00000704 /**< Port edge control */
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#define GPIO_USB_CTRL 0x00000708 /**< USB input power-up edge ctrl */
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#define GPIO_PI_IEN 0x00000710 /**< Power-up interrupt enable */
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#define GPIO_IRQ_DETECT_ACK 0x00000718 /**< IRQ detect ACK - I/O ports */
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#define GPIO_USB_IRQ_ACK 0x0000071C /**< IRQ detect ACK - USB */
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#define GPIO_IRQ_DETECT_UNMASK 0x00000720 /**< IRQ detect ACK - masked */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_DATA register bit masks
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* @{
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*/
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#define GPIO_DATA_DATA 0x000000FF /**< Input and output data */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_DIR register bit masks
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* @{
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*/
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#define GPIO_DIR_DIR 0x000000FF /**< Pin Input (0) / Output (1) */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_IS register bit masks
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* @{
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*/
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#define GPIO_IS_IS 0x000000FF /**< Detect Edge (0) / Level (1) */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_IBE register bit masks
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* @{
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*/
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#define GPIO_IBE_IBE 0x000000FF /**< Both Edges (1) / Single (0) */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_IEV register bit masks
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* @{
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*/
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#define GPIO_IEV_IEV 0x000000FF /**< Rising (1) / Falling (0) */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_IE register bit masks
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* @{
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*/
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#define GPIO_IE_IE 0x000000FF /**< Masked (0) / Not Masked (1) */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_RIS register bit masks
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* @{
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*/
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#define GPIO_RIS_RIS 0x000000FF /**< Raw interrupt status */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_MIS register bit masks
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* @{
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*/
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#define GPIO_MIS_MIS 0x000000FF /**< Masked interrupt status */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_IC register bit masks
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* @{
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*/
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#define GPIO_IC_IC 0x000000FF /**< Clear edge detection (1) */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_AFSEL register bit masks
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* @{
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*/
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#define GPIO_AFSEL_AFSEL 0x000000FF /**< Software (0) / Peripheral (1) */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_GPIOLOCK register bit masks
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* @{
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*/
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#define GPIO_GPIOLOCK_LOCK 0xFFFFFFFF /**< Locked (1) / Unlocked (0) */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_GPIOCR register bit masks
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* @{
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*/
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#define GPIO_GPIOCR_CR 0x000000FF /**< Allow alternate function (1) */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_PMUX register bit masks
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* @{
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*/
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#define GPIO_PMUX_CKOEN 0x00000080 /**< Clock out enable */
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#define GPIO_PMUX_CKOPIN 0x00000010 /**< Decouple control pin select */
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#define GPIO_PMUX_DCEN 0x00000008 /**< Decouple control enable */
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#define GPIO_PMUX_DCPIN 0x00000001 /**< Decouple control pin select */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_P_EDGE_CTRL register bit masks.
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* \brief Rising (0) / Falling (1)
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* @{
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*/
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#define GPIO_P_EDGE_CTRL_PDIRC7 0x80000000 /**< Port D bit 7 */
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#define GPIO_P_EDGE_CTRL_PDIRC6 0x40000000 /**< Port D bit 6 */
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#define GPIO_P_EDGE_CTRL_PDIRC5 0x20000000 /**< Port D bit 5 */
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#define GPIO_P_EDGE_CTRL_PDIRC4 0x10000000 /**< Port D bit 4 */
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#define GPIO_P_EDGE_CTRL_PDIRC3 0x08000000 /**< Port D bit 3 */
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#define GPIO_P_EDGE_CTRL_PDIRC2 0x04000000 /**< Port D bit 2 */
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#define GPIO_P_EDGE_CTRL_PDIRC1 0x02000000 /**< Port D bit 1 */
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#define GPIO_P_EDGE_CTRL_PDIRC0 0x01000000 /**< Port D bit 0 */
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#define GPIO_P_EDGE_CTRL_PCIRC7 0x00800000 /**< Port C bit 7 */
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#define GPIO_P_EDGE_CTRL_PCIRC6 0x00400000 /**< Port C bit 6 */
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#define GPIO_P_EDGE_CTRL_PCIRC5 0x00200000 /**< Port C bit 5 */
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#define GPIO_P_EDGE_CTRL_PCIRC4 0x00100000 /**< Port C bit 4 */
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#define GPIO_P_EDGE_CTRL_PCIRC3 0x00080000 /**< Port C bit 3 */
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#define GPIO_P_EDGE_CTRL_PCIRC2 0x00040000 /**< Port C bit 2 */
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#define GPIO_P_EDGE_CTRL_PCIRC1 0x00020000 /**< Port C bit 1 */
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#define GPIO_P_EDGE_CTRL_PCIRC0 0x00010000 /**< Port C bit 0 */
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#define GPIO_P_EDGE_CTRL_PBIRC7 0x00008000 /**< Port B bit 7 */
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#define GPIO_P_EDGE_CTRL_PBIRC6 0x00004000 /**< Port B bit 6 */
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#define GPIO_P_EDGE_CTRL_PBIRC5 0x00002000 /**< Port B bit 5 */
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#define GPIO_P_EDGE_CTRL_PBIRC4 0x00001000 /**< Port B bit 4 */
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#define GPIO_P_EDGE_CTRL_PBIRC3 0x00000800 /**< Port B bit 3 */
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#define GPIO_P_EDGE_CTRL_PBIRC2 0x00000400 /**< Port B bit 2 */
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#define GPIO_P_EDGE_CTRL_PBIRC1 0x00000200 /**< Port B bit 1 */
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#define GPIO_P_EDGE_CTRL_PBIRC0 0x00000100 /**< Port B bit 0 */
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#define GPIO_P_EDGE_CTRL_PAIRC7 0x00000080 /**< Port A bit 7 */
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#define GPIO_P_EDGE_CTRL_PAIRC6 0x00000040 /**< Port A bit 6 */
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#define GPIO_P_EDGE_CTRL_PAIRC5 0x00000020 /**< Port A bit 5 */
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#define GPIO_P_EDGE_CTRL_PAIRC4 0x00000010 /**< Port A bit 4 */
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#define GPIO_P_EDGE_CTRL_PAIRC3 0x00000008 /**< Port A bit 3 */
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#define GPIO_P_EDGE_CTRL_PAIRC2 0x00000004 /**< Port A bit 2 */
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#define GPIO_P_EDGE_CTRL_PAIRC1 0x00000002 /**< Port A bit 1 */
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#define GPIO_P_EDGE_CTRL_PAIRC0 0x00000001 /**< Port A bit 0 */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_USB_CTRL register bit masks
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* @{
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*/
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#define GPIO_USB_CTRL_USB_EDGE_CTL 0x00000001 /**< Rising (0) / Falling (1) */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_PI_IEN register bit masks.
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* \brief Enabled (1) / Disabled (0)
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* @{
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*/
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#define GPIO_PI_IEN_PDIEN7 0x80000000 /**< Port D bit 7 */
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#define GPIO_PI_IEN_PDIEN6 0x40000000 /**< Port D bit 6 */
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#define GPIO_PI_IEN_PDIEN5 0x20000000 /**< Port D bit 5 */
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#define GPIO_PI_IEN_PDIEN4 0x10000000 /**< Port D bit 4 */
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#define GPIO_PI_IEN_PDIEN3 0x08000000 /**< Port D bit 3 */
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#define GPIO_PI_IEN_PDIEN2 0x04000000 /**< Port D bit 2 */
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#define GPIO_PI_IEN_PDIEN1 0x02000000 /**< Port D bit 1 */
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#define GPIO_PI_IEN_PDIEN0 0x01000000 /**< Port D bit 0 */
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#define GPIO_PI_IEN_PCIEN7 0x00800000 /**< Port C bit 7 */
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#define GPIO_PI_IEN_PCIEN6 0x00400000 /**< Port C bit 6 */
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#define GPIO_PI_IEN_PCIEN5 0x00200000 /**< Port C bit 5 */
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#define GPIO_PI_IEN_PCIEN4 0x00100000 /**< Port C bit 4 */
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#define GPIO_PI_IEN_PCIEN3 0x00080000 /**< Port C bit 3 */
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#define GPIO_PI_IEN_PCIEN2 0x00040000 /**< Port C bit 2 */
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#define GPIO_PI_IEN_PCIEN1 0x00020000 /**< Port C bit 1 */
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#define GPIO_PI_IEN_PCIEN0 0x00010000 /**< Port C bit 0 */
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#define GPIO_PI_IEN_PBIEN7 0x00008000 /**< Port B bit 7 */
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#define GPIO_PI_IEN_PBIEN6 0x00004000 /**< Port B bit 6 */
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#define GPIO_PI_IEN_PBIEN5 0x00002000 /**< Port B bit 5 */
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#define GPIO_PI_IEN_PBIEN4 0x00001000 /**< Port B bit 4 */
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#define GPIO_PI_IEN_PBIEN3 0x00000800 /**< Port B bit 3 */
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#define GPIO_PI_IEN_PBIEN2 0x00000400 /**< Port B bit 2 */
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#define GPIO_PI_IEN_PBIEN1 0x00000200 /**< Port B bit 1 */
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#define GPIO_PI_IEN_PBIEN0 0x00000100 /**< Port B bit 0 */
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#define GPIO_PI_IEN_PAIEN7 0x00000080 /**< Port A bit 7 */
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#define GPIO_PI_IEN_PAIEN6 0x00000040 /**< Port A bit 6 */
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#define GPIO_PI_IEN_PAIEN5 0x00000020 /**< Port A bit 5 */
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#define GPIO_PI_IEN_PAIEN4 0x00000010 /**< Port A bit 4 */
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#define GPIO_PI_IEN_PAIEN3 0x00000008 /**< Port A bit 3 */
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#define GPIO_PI_IEN_PAIEN2 0x00000004 /**< Port A bit 2 */
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#define GPIO_PI_IEN_PAIEN1 0x00000002 /**< Port A bit 1 */
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#define GPIO_PI_IEN_PAIEN0 0x00000001 /**< Port A bit 0 */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_IRQ_DETECT_ACK register bit masks
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* \brief Detected (1) / Undetected (0)
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* @{
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*/
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#define GPIO_IRQ_DETECT_ACK_PDIACK7 0x80000000 /**< Port D bit 7 */
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#define GPIO_IRQ_DETECT_ACK_PDIACK6 0x40000000 /**< Port D bit 6 */
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#define GPIO_IRQ_DETECT_ACK_PDIACK5 0x20000000 /**< Port D bit 5 */
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#define GPIO_IRQ_DETECT_ACK_PDIACK4 0x10000000 /**< Port D bit 4 */
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#define GPIO_IRQ_DETECT_ACK_PDIACK3 0x08000000 /**< Port D bit 3 */
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#define GPIO_IRQ_DETECT_ACK_PDIACK2 0x04000000 /**< Port D bit 2 */
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#define GPIO_IRQ_DETECT_ACK_PDIACK1 0x02000000 /**< Port D bit 1 */
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#define GPIO_IRQ_DETECT_ACK_PDIACK0 0x01000000 /**< Port D bit 0 */
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#define GPIO_IRQ_DETECT_ACK_PCIACK7 0x00800000 /**< Port C bit 7 */
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#define GPIO_IRQ_DETECT_ACK_PCIACK6 0x00400000 /**< Port C bit 6 */
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#define GPIO_IRQ_DETECT_ACK_PCIACK5 0x00200000 /**< Port C bit 5 */
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#define GPIO_IRQ_DETECT_ACK_PCIACK4 0x00100000 /**< Port C bit 4 */
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#define GPIO_IRQ_DETECT_ACK_PCIACK3 0x00080000 /**< Port C bit 3 */
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#define GPIO_IRQ_DETECT_ACK_PCIACK2 0x00040000 /**< Port C bit 2 */
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#define GPIO_IRQ_DETECT_ACK_PCIACK1 0x00020000 /**< Port C bit 1 */
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#define GPIO_IRQ_DETECT_ACK_PCIACK0 0x00010000 /**< Port C bit 0 */
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#define GPIO_IRQ_DETECT_ACK_PBIACK7 0x00008000 /**< Port B bit 7 */
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#define GPIO_IRQ_DETECT_ACK_PBIACK6 0x00004000 /**< Port B bit 6 */
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#define GPIO_IRQ_DETECT_ACK_PBIACK5 0x00002000 /**< Port B bit 5 */
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#define GPIO_IRQ_DETECT_ACK_PBIACK4 0x00001000 /**< Port B bit 4 */
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#define GPIO_IRQ_DETECT_ACK_PBIACK3 0x00000800 /**< Port B bit 3 */
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#define GPIO_IRQ_DETECT_ACK_PBIACK2 0x00000400 /**< Port B bit 2 */
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#define GPIO_IRQ_DETECT_ACK_PBIACK1 0x00000200 /**< Port B bit 1 */
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#define GPIO_IRQ_DETECT_ACK_PBIACK0 0x00000100 /**< Port B bit 0 */
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#define GPIO_IRQ_DETECT_ACK_PAIACK7 0x00000080 /**< Port A bit 7 */
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#define GPIO_IRQ_DETECT_ACK_PAIACK6 0x00000040 /**< Port A bit 6 */
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#define GPIO_IRQ_DETECT_ACK_PAIACK5 0x00000020 /**< Port A bit 5 */
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#define GPIO_IRQ_DETECT_ACK_PAIACK4 0x00000010 /**< Port A bit 4 */
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#define GPIO_IRQ_DETECT_ACK_PAIACK3 0x00000008 /**< Port A bit 3 */
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#define GPIO_IRQ_DETECT_ACK_PAIACK2 0x00000004 /**< Port A bit 2 */
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#define GPIO_IRQ_DETECT_ACK_PAIACK1 0x00000002 /**< Port A bit 1 */
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#define GPIO_IRQ_DETECT_ACK_PAIACK0 0x00000001 /**< Port A bit 0 */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_USB_IRQ_ACK register bit masks
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* @{
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*/
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#define GPIO_USB_IRQ_ACK_USBACK 0x00000001 /**< Detected (1) / Not detected (0) */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \name GPIO_IRQ_DETECT_UNMASK register bit masks.
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* \brief Detected (1) / Not detected (0)
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* @{
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*/
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#define GPIO_IRQ_DETECT_UNMASK_PDIACK7 0x80000000 /**< Port D bit 7 */
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#define GPIO_IRQ_DETECT_UNMASK_PDIACK6 0x40000000 /**< Port D bit 6 */
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#define GPIO_IRQ_DETECT_UNMASK_PDIACK5 0x20000000 /**< Port D bit 5 */
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#define GPIO_IRQ_DETECT_UNMASK_PDIACK4 0x10000000 /**< Port D bit 4 */
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#define GPIO_IRQ_DETECT_UNMASK_PDIACK3 0x08000000 /**< Port D bit 3 */
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#define GPIO_IRQ_DETECT_UNMASK_PDIACK2 0x04000000 /**< Port D bit 2 */
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#define GPIO_IRQ_DETECT_UNMASK_PDIACK1 0x02000000 /**< Port D bit 1 */
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#define GPIO_IRQ_DETECT_UNMASK_PDIACK0 0x01000000 /**< Port D bit 0 */
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#define GPIO_IRQ_DETECT_UNMASK_PCIACK7 0x00800000 /**< Port C bit 7 */
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#define GPIO_IRQ_DETECT_UNMASK_PCIACK6 0x00400000 /**< Port C bit 6 */
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#define GPIO_IRQ_DETECT_UNMASK_PCIACK5 0x00200000 /**< Port C bit 5 */
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#define GPIO_IRQ_DETECT_UNMASK_PCIACK4 0x00100000 /**< Port C bit 4 */
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#define GPIO_IRQ_DETECT_UNMASK_PCIACK3 0x00080000 /**< Port C bit 3 */
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#define GPIO_IRQ_DETECT_UNMASK_PCIACK2 0x00040000 /**< Port C bit 2 */
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#define GPIO_IRQ_DETECT_UNMASK_PCIACK1 0x00020000 /**< Port C bit 1 */
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#define GPIO_IRQ_DETECT_UNMASK_PCIACK0 0x00010000 /**< Port C bit 0 */
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#define GPIO_IRQ_DETECT_UNMASK_PBIACK7 0x00008000 /**< Port B bit 7 */
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#define GPIO_IRQ_DETECT_UNMASK_PBIACK6 0x00004000 /**< Port B bit 6 */
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#define GPIO_IRQ_DETECT_UNMASK_PBIACK5 0x00002000 /**< Port B bit 5 */
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#define GPIO_IRQ_DETECT_UNMASK_PBIACK4 0x00001000 /**< Port B bit 4 */
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#define GPIO_IRQ_DETECT_UNMASK_PBIACK3 0x00000800 /**< Port B bit 3 */
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#define GPIO_IRQ_DETECT_UNMASK_PBIACK2 0x00000400 /**< Port B bit 2 */
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#define GPIO_IRQ_DETECT_UNMASK_PBIACK1 0x00000200 /**< Port B bit 1 */
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#define GPIO_IRQ_DETECT_UNMASK_PBIACK0 0x00000100 /**< Port B bit 0 */
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#define GPIO_IRQ_DETECT_UNMASK_PAIACK7 0x00000080 /**< Port A bit 7 */
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#define GPIO_IRQ_DETECT_UNMASK_PAIACK6 0x00000040 /**< Port A bit 6 */
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#define GPIO_IRQ_DETECT_UNMASK_PAIACK5 0x00000020 /**< Port A bit 5 */
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#define GPIO_IRQ_DETECT_UNMASK_PAIACK4 0x00000010 /**< Port A bit 4 */
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#define GPIO_IRQ_DETECT_UNMASK_PAIACK3 0x00000008 /**< Port A bit 3 */
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#define GPIO_IRQ_DETECT_UNMASK_PAIACK2 0x00000004 /**< Port A bit 2 */
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#define GPIO_IRQ_DETECT_UNMASK_PAIACK1 0x00000002 /**< Port A bit 1 */
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#define GPIO_IRQ_DETECT_UNMASK_PAIACK0 0x00000001 /**< Port A bit 0 */
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/** @} */
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/*---------------------------------------------------------------------------*/
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/** \brief Initialise the GPIO module */
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void gpio_init();
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/**
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* \brief Register GPIO callback
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* \param f Pointer to a function to be called when \a pin of \a port
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* generates an interrupt
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* \param port Associate \a f with this port. \e port must be specified with
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* its numeric representation (Port A:0, B:1 etc). Defines for these
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* numeric representations are GPIO_x_NUM
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* \param pin Associate \a f with this pin, which is specified by number
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* (0, 1, ..., 7)
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*/
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void gpio_register_callback(gpio_callback_t f, uint8_t port, uint8_t pin);
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#endif /* GPIO_H_ */
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/**
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* @}
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* @}
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*/
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