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https://github.com/RIOT-OS/RIOT.git
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940097336a
- moved definition of CPUID_LEN to periph_cpu.h - fixed some doxygen - simplyfied some implementations
109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
/*
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* Copyright (C) 2015 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup cpu_kinetis_common
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* @{
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*
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* @file
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* @brief CPU specific definitions for internal peripheral handling
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*
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* @author Hauke Petersen <hauke.peterse@fu-berlin.de>
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*/
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#ifndef PERIPH_CPU_H_
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#define PERIPH_CPU_H_
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#include <stdint.h>
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#include "periph/dev_enums.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Overwrite the default gpio_t type definition
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* @{
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*/
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#define HAVE_GPIO_T
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typedef uint16_t gpio_t;
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/** @} */
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/**
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* @brief Definition of a fitting UNDEF value
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*/
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#define GPIO_UNDEF (0xffff)
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/**
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* @brief Definition of pin and port positions in the gpio_t type
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* @{
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*/
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#define GPIO_PORT_SHIFT (8)
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#define GPIO_PORT_MASK (0xff << (GPIO_PORT_SHIFT))
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#define GPIO_PIN_SHIFT (0)
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#define GPIO_PIN_MASK (0xff << (GPIO_PIN_SHIFT))
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/** @} */
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/**
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* @brief Define a CPU specific GPIO pin generator macro
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*/
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#define GPIO_PIN(port, pin) ((port << GPIO_PORT_SHIFT) | pin)
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/**
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* @brief Length of the CPU_ID in octets
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*/
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#define CPUID_LEN (16U)
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/**
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* @brief Override values for pull register configuration
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* @{
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*/
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#define HAVE_GPIO_PP_T
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typedef enum {
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GPIO_NOPULL = 4, /**< do not use internal pull resistors */
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GPIO_PULLUP = 9, /**< enable internal pull-up resistor */
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GPIO_PULLDOWN = 8 /**< enable internal pull-down resistor */
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} gpio_pp_t;
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/** @} */
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/**
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* @brief Override flank configuration values
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* @{
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*/
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#define HAVE_GPIO_FLANK_T
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typedef enum {
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GPIO_LOGIC_ZERO = 0x8, /**< interrupt on logic zero */
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GPIO_RISING = 0x9, /**< emit interrupt on rising flank */
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GPIO_FALLING = 0xa, /**< emit interrupt on falling flank */
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GPIO_BOTH = 0xb, /**< emit interrupt on both flanks */
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GPIO_LOGIC_ONE = 0xc, /**< interrupt on logic one */
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} gpio_flank_t;
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/** @} */
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/**
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* @brief Available ports on the Kinetis family
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*/
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enum {
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PORT_A = 0, /**< port A */
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PORT_B = 1, /**< port B */
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PORT_C = 2, /**< port C */
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PORT_D = 3, /**< port D */
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PORT_E = 4, /**< port E */
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PORT_F = 5, /**< port F */
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PORT_G = 6, /**< port G */
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PORT_NUMOF
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};
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#ifdef __cplusplus
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}
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#endif
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#endif /* PERIPH_CPU_H_ */
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/** @} */
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