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 
14 MODULE_IMPORT_NS("SPI_OFFLOAD");
15 
16 struct device;
17 struct spi_offload_trigger;
18 
19 struct spi_offload *devm_spi_offload_alloc(struct device *dev, size_t priv_size);
20 
21 struct 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 
34 struct 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 
43 int devm_spi_offload_trigger_register(struct device *dev,
44 				      struct spi_offload_trigger_info *info);
45 void *spi_offload_trigger_get_priv(struct spi_offload_trigger *trigger);
46 
47 #endif /* __LINUX_SPI_OFFLOAD_PROVIDER_H */
48