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