45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
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/*
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* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only 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 __WCD_SPI_H__
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#define __WCD_SPI_H__
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struct wcd_spi_msg {
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/*
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* Caller's buffer pointer that holds data to
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* be transmitted in case of data_write and
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* data to be copied to in case of data_read.
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*/
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void *data;
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/* Length of data to write/read */
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size_t len;
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/*
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* Address in remote memory to write to
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* or read from.
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*/
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u32 remote_addr;
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/* Bitmask of flags, currently unused */
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u32 flags;
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};
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struct wcd_spi_ops {
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struct spi_device *spi_dev;
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int (*read_dev)(struct spi_device *spi, struct wcd_spi_msg *msg);
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int (*write_dev)(struct spi_device *spi, struct wcd_spi_msg *msg);
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};
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#endif /* End of __WCD_SPI_H__ */
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