provider.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) 2024 Analog Devices Inc.
 4 * Copyright (C) 2024 BayLibre, SAS
 5 */
 6
 7#ifndef __LINUX_SPI_OFFLOAD_PROVIDER_H
 8#define __LINUX_SPI_OFFLOAD_PROVIDER_H
 9
10#include <linux/module.h>
11#include <linux/spi/offload/types.h>
12#include <linux/types.h>
13
14MODULE_IMPORT_NS("SPI_OFFLOAD");
15
16struct device;
17struct spi_offload_trigger;
18
19struct spi_offload *devm_spi_offload_alloc(struct device *dev, size_t priv_size);
20
21struct spi_offload_trigger_ops {
22	bool (*match)(struct spi_offload_trigger *trigger,
23		      enum spi_offload_trigger_type type, u64 *args, u32 nargs);
24	int (*request)(struct spi_offload_trigger *trigger,
25		       enum spi_offload_trigger_type type, u64 *args, u32 nargs);
26	void (*release)(struct spi_offload_trigger *trigger);
27	int (*validate)(struct spi_offload_trigger *trigger,
28			struct spi_offload_trigger_config *config);
29	int (*enable)(struct spi_offload_trigger *trigger,
30		      struct spi_offload_trigger_config *config);
31	void (*disable)(struct spi_offload_trigger *trigger);
32};
33
34struct spi_offload_trigger_info {
35	/** @fwnode: Provider fwnode, used to match to consumer. */
36	struct fwnode_handle *fwnode;
37	/** @ops: Provider-specific callbacks. */
38	const struct spi_offload_trigger_ops *ops;
39	/** Provider-specific state to be used in callbacks. */
40	void *priv;
41};
42
43int devm_spi_offload_trigger_register(struct device *dev,
44				      struct spi_offload_trigger_info *info);
45void *spi_offload_trigger_get_priv(struct spi_offload_trigger *trigger);
46
47#endif /* __LINUX_SPI_OFFLOAD_PROVIDER_H */