| /* |
| * 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_ */ |