/* * This file is part of the coreboot project. * * Copyright 2018 Google LLC * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef _SPI_BITBANG_H_ #define _SPI_BITBANG_H_ #include <types.h> struct spi_bitbang_ops { int (*get_miso)(const struct spi_bitbang_ops *ops); void (*set_mosi)(const struct spi_bitbang_ops *ops, int value); void (*set_clk)(const struct spi_bitbang_ops *ops, int value); void (*set_cs)(const struct spi_bitbang_ops *ops, int value); }; int spi_bitbang_claim_bus(const struct spi_bitbang_ops *ops); void spi_bitbang_release_bus(const struct spi_bitbang_ops *ops); int spi_bitbang_xfer(const struct spi_bitbang_ops *ops, const void *dout, size_t bytes_out, void *din, size_t bytes_in); #endif /* _SPI_BITBANG_H_ */