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