atmega_common/include/periph_cpu_common.h

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/*
 * Copyright (C) 2015 HAW Hamburg
 *               2016 Freie Universität Berlin
 *               2016 INRIA
 *
 * 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_COMMON_H
#define PERIPH_CPU_COMMON_H

#ifdef __cplusplus
extern "C" {
#endif

#define GPIO_PIN(x, y)          ((x << 4) | y)

#define HAVE_GPIO_FLANK_T
typedef enum {
    GPIO_LOW,          
    GPIO_BOTH,         
    GPIO_FALLING,      
    GPIO_RISING,       
} gpio_flank_t;
#define PERIPH_SPI_NEEDS_INIT_CS
#define PERIPH_SPI_NEEDS_TRANSFER_BYTE
#define PERIPH_SPI_NEEDS_TRANSFER_REG
#define PERIPH_SPI_NEEDS_TRANSFER_REGS

#define SPI_MODE_SEL(pol, pha)          ((pol << 3) | (pha << 2))

#define HAVE_SPI_MODE_T
typedef enum {
    SPI_MODE_0 = SPI_MODE_SEL(0, 0),    
    SPI_MODE_1 = SPI_MODE_SEL(0, 1),    
    SPI_MODE_2 = SPI_MODE_SEL(1, 0),    
    SPI_MODE_3 = SPI_MODE_SEL(1, 1)     
} spi_mode_t;
#define SPI_CLK_SEL(s2x, pr1, pr0)    ((s2x << 2) | (pr1 << 1) | pr0)

#define HAVE_SPI_CLK_T
typedef enum {
    SPI_CLK_100KHZ = SPI_CLK_SEL(0, 1, 1),      
    SPI_CLK_400KHZ = SPI_CLK_SEL(1, 1, 0),      
    SPI_CLK_1MHZ   = SPI_CLK_SEL(0, 0, 1),      
    SPI_CLK_5MHZ   = SPI_CLK_SEL(0, 0, 0),      
    SPI_CLK_10MHZ  = SPI_CLK_SEL(1, 0, 0)       
} spi_clk_t;
#ifdef __cplusplus
}
#endif

#endif /* PERIPH_CPU_COMMON_H */