spi.h

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/* SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright(c) 2017 Intel Corporation. All rights reserved.
 *
 * Author: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
 */
 
#ifndef __SOF_DRIVERS_SPI_H__
#define __SOF_DRIVERS_SPI_H__
 
#include <stddef.h>
#include <stdint.h>
 
enum spi_type {
    SOF_SPI_INTEL_SLAVE,
    SOF_SPI_INTEL_MASTER,
};
 
enum spi_xfer_direction {
    SPI_DIR_RX,
    SPI_DIR_TX,
};
 
struct spi_plat_fifo_data {
    uint32_t handshake;
};
 
struct spi_platform_data {
    uint32_t base;
    struct spi_plat_fifo_data fifo[2];
    enum spi_type type;
};
 
struct spi;
 
int spi_push(struct spi *spi, const void *data, size_t size);
int spi_probe(struct spi *spi);
struct spi *spi_get(enum spi_type type);
int spi_install(const struct spi_platform_data *plat, size_t n);
void spi_init(void);
 
#endif /* __SOF_DRIVERS_SPI_H__ */