spi_emul.h

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/*
 * Copyright 2020 Google LLC
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_DRIVERS_SPI_SPI_EMUL_H_
#define ZEPHYR_INCLUDE_DRIVERS_SPI_SPI_EMUL_H_
 
#include <zephyr/types.h>
#include <device.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct spi_msg;
struct spi_emul_api;
 
struct spi_emul {
        sys_snode_t node;
 
        /* API provided for this device */
        const struct spi_emul_api *api;
 
        /* SPI chip-slect of the emulated device */
        uint16_t chipsel;
};
 
typedef int (*spi_emul_io_t)(struct spi_emul *emul,
                             const struct spi_config *config,
                             const struct spi_buf_set *tx_bufs,
                             const struct spi_buf_set *rx_bufs);
 
int spi_emul_register(const struct device *dev, const char *name,
                      struct spi_emul *emul);
 
struct spi_emul_api {
        spi_emul_io_t io;
};
 
uint32_t spi_emul_get_config(const struct device *dev);
 
#ifdef __cplusplus
}
#endif
 
#endif /* ZEPHYR_INCLUDE_DRIVERS_SPI_SPI_EMUL_H_ */