periph_cpu.h

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/*
 * Copyright (C) 2015 Freie Universität Berlin
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#ifndef PERIPH_CPU_H
#define PERIPH_CPU_H
 
#include "periph_conf.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#ifndef CPUID_LEN
#define CPUID_LEN           (4U)
#endif
 
/* GPIO configuration only if the module is available (=Linux) */
#if defined(MODULE_PERIPH_GPIO_LINUX) || defined(DOXYGEN)
#include <linux/gpio.h>
 
#define GPIO_PORT_SHIFT     (24)
 
#define GPIO_PIN(port, pin) (gpio_t)((port << GPIO_PORT_SHIFT) | pin)
 
#define HAVE_GPIO_MODE_T
#ifndef GPIOHANDLE_REQUEST_PULL_DOWN
#define GPIOHANDLE_REQUEST_PULL_DOWN    (0xFF)
#endif
#ifndef GPIOHANDLE_REQUEST_PULL_UP
#define GPIOHANDLE_REQUEST_PULL_UP      (0xFF)
#endif
 
typedef enum {
    GPIO_IN    = GPIOHANDLE_REQUEST_INPUT,
    GPIO_IN_PD = GPIOHANDLE_REQUEST_INPUT | GPIOHANDLE_REQUEST_PULL_DOWN,
    GPIO_IN_PU = GPIOHANDLE_REQUEST_INPUT | GPIOHANDLE_REQUEST_PULL_UP,
    GPIO_OUT   = GPIOHANDLE_REQUEST_OUTPUT,
    GPIO_OD    = GPIOHANDLE_REQUEST_OPEN_DRAIN,
    GPIO_OD_PU = GPIOHANDLE_REQUEST_OPEN_DRAIN | GPIOHANDLE_REQUEST_PULL_UP
} gpio_mode_t;
 
#define HAVE_GPIO_FLANK_T
typedef enum {
    GPIO_FALLING = GPIOEVENT_EVENT_FALLING_EDGE,    
    GPIO_RISING = GPIOEVENT_EVENT_RISING_EDGE,      
    GPIO_BOTH = GPIO_FALLING | GPIO_RISING          
} gpio_flank_t;
 
#endif /* MODULE_PERIPH_GPIO_LINUX | DOXYGEN */
 
#define PERIPH_TIMER_PROVIDES_SET
 
#define PROVIDES_PM_OFF
#define PROVIDES_PM_SET_LOWEST
 
/* Configuration for the wrapper around the Linux SPI API (periph_spidev_linux)
 *
 * Needs to go here, otherwise the SPI_NEEDS_ are defined after inclusion of
 * spi.h.
 */
#if defined(MODULE_PERIPH_SPIDEV_LINUX) || defined(DOXYGEN)
 
#define PERIPH_SPI_NEEDS_TRANSFER_BYTE
 
#define PERIPH_SPI_NEEDS_TRANSFER_REG
 
#define PERIPH_SPI_NEEDS_TRANSFER_REGS
 
#ifndef DOXYGEN
 
#define HAVE_SPI_CLK_T
 
typedef enum {
    SPI_CLK_100KHZ = (100000U),
    SPI_CLK_400KHZ = (400000U),
    SPI_CLK_1MHZ   = (1000000U),
    SPI_CLK_5MHZ   = (5000000U),
    SPI_CLK_10MHZ  = (10000000U)
} spi_clk_t;
#endif /* ndef DOXYGEN */
#endif /* MODULE_PERIPH_SPI | DOXYGEN */
 
#ifndef EEPROM_SIZE
#define EEPROM_SIZE             (1024U)  /* 1kB */
#endif
 
#ifdef MODULE_PERIPH_CAN
#include "candev_linux.h"
#endif
 
#ifdef __cplusplus
}
#endif
 
#endif /* PERIPH_CPU_H */