0545e9dc6d
commit d1edce71135cc6d98c0a4b5729774542b676e769 Author: sophgo-forum-service <forum_service@sophgo.com> Date: Fri Mar 15 16:07:33 2024 +0800 [fix] recommend using ssh method to clone repo. [fix] fix sensor driver repo branch name.
36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
/*
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* Simulate a SPI port and clients (see doc/arch/sandbox.rst for details)
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*
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* Copyright (c) 2011-2013 The Chromium OS Authors.
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* Licensed under the GPL-2 or later.
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*/
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#ifndef __ASM_SPI_H__
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#define __ASM_SPI_H__
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#include <linux/types.h>
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/*
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* The interface between the SPI bus and the SPI client. The bus will
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* instantiate a client, and that then call into it via these entry
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* points. These should be enough for the client to emulate the SPI
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* device just like the real hardware.
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*/
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struct sandbox_spi_emu_ops {
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/* The bus wants to instantiate a new client, so setup everything */
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int (*setup)(void **priv, const char *spec);
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/* The bus is done with us, so break things down */
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void (*free)(void *priv);
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/* The CS has been "activated" -- we won't worry about low/high */
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void (*cs_activate)(void *priv);
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/* The CS has been "deactivated" -- we won't worry about low/high */
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void (*cs_deactivate)(void *priv);
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/* The client is rx-ing bytes from the bus, so it should tx some */
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int (*xfer)(void *priv, const u8 *rx, u8 *tx, uint bytes);
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};
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#endif
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