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114 lines
2.6 KiB
C
114 lines
2.6 KiB
C
/*
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* Copyright (C) 2015-2016 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_cc2538
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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 "cc2538_gptimer.h"
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#include "cc2538_ssi.h"
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#include "cc2538_gpio.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 Length of the CPU_ID in octets
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*/
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#define CPUID_LEN (8U)
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/**
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* @brief Define a custom type for GPIO pins
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* @{
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*/
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#define HAVE_GPIO_T
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typedef uint32_t gpio_t;
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/** @} */
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/**
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* @brief Define a custom GPIO_PIN macro
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*
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* For the CC2538, we use OR the gpio ports base register address with the
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* actual pin number.
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*/
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#define GPIO_PIN(port, pin) (gpio_t)(((uint32_t)GPIO_A + (port << 12)) | pin)
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/**
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* @brief declare needed generic SPI functions
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* @{
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*/
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#define PERIPH_SPI_NEEDS_TRANSFER_REG
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#define PERIPH_SPI_NEEDS_TRANSFER_REGS
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/** @} */
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/**
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* @brief Override the default GPIO mode settings
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* @{
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*/
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#define HAVE_GPIO_MODE_T
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typedef enum {
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GPIO_IN = ((uint8_t)0x00), /**< input, no pull */
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GPIO_IN_PD = ((uint8_t)IOC_OVERRIDE_PDE), /**< input, pull-down */
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GPIO_IN_PU = ((uint8_t)IOC_OVERRIDE_PUE), /**< input, pull-up */
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GPIO_OUT = ((uint8_t)IOC_OVERRIDE_OE), /**< output */
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GPIO_OD = (0xff), /**< not supported */
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GPIO_OD_PU = (0xff) /**< not supported */
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} gpio_mode_t;
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/** @} */
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/**
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* @brief I2C configuration options
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*/
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typedef struct {
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gpio_t scl_pin; /**< pin used for SCL */
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gpio_t sda_pin; /**< pin used for SDA */
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} i2c_conf_t;
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/**
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* @brief SPI configuration data structure
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* @{
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*/
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typedef struct {
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cc2538_ssi_t *dev; /**< SSI device */
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gpio_t mosi_pin; /**< pin used for MOSI */
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gpio_t miso_pin; /**< pin used for MISO */
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gpio_t sck_pin; /**< pin used for SCK */
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gpio_t cs_pin; /**< pin used for CS */
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} periph_spi_conf_t;
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/** @} */
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/**
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* @brief Timer configuration data
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*/
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typedef struct {
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cc2538_gptimer_t *dev; /**< timer device */
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uint_fast8_t channels; /**< number of channels */
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uint_fast8_t cfg; /**< timer config word */
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} timer_conf_t;
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#ifdef __cplusplus
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}
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#endif
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#include "periph/dev_enums.h"
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#endif /* PERIPH_CPU_H_ */
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/** @} */
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