fpga-region.h (2140B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2 3#ifndef _FPGA_REGION_H 4#define _FPGA_REGION_H 5 6#include <linux/device.h> 7#include <linux/fpga/fpga-mgr.h> 8#include <linux/fpga/fpga-bridge.h> 9 10struct fpga_region; 11 12/** 13 * struct fpga_region_info - collection of parameters an FPGA Region 14 * @mgr: fpga region manager 15 * @compat_id: FPGA region id for compatibility check. 16 * @priv: fpga region private data 17 * @get_bridges: optional function to get bridges to a list 18 * 19 * fpga_region_info contains parameters for the register_full function. 20 * These are separated into an info structure because they some are optional 21 * others could be added to in the future. The info structure facilitates 22 * maintaining a stable API. 23 */ 24struct fpga_region_info { 25 struct fpga_manager *mgr; 26 struct fpga_compat_id *compat_id; 27 void *priv; 28 int (*get_bridges)(struct fpga_region *region); 29}; 30 31/** 32 * struct fpga_region - FPGA Region structure 33 * @dev: FPGA Region device 34 * @mutex: enforces exclusive reference to region 35 * @bridge_list: list of FPGA bridges specified in region 36 * @mgr: FPGA manager 37 * @info: FPGA image info 38 * @compat_id: FPGA region id for compatibility check. 39 * @priv: private data 40 * @get_bridges: optional function to get bridges to a list 41 */ 42struct fpga_region { 43 struct device dev; 44 struct mutex mutex; /* for exclusive reference to region */ 45 struct list_head bridge_list; 46 struct fpga_manager *mgr; 47 struct fpga_image_info *info; 48 struct fpga_compat_id *compat_id; 49 void *priv; 50 int (*get_bridges)(struct fpga_region *region); 51}; 52 53#define to_fpga_region(d) container_of(d, struct fpga_region, dev) 54 55struct fpga_region * 56fpga_region_class_find(struct device *start, const void *data, 57 int (*match)(struct device *, const void *)); 58 59int fpga_region_program_fpga(struct fpga_region *region); 60 61struct fpga_region * 62fpga_region_register_full(struct device *parent, const struct fpga_region_info *info); 63 64struct fpga_region * 65fpga_region_register(struct device *parent, struct fpga_manager *mgr, 66 int (*get_bridges)(struct fpga_region *)); 67void fpga_region_unregister(struct fpga_region *region); 68 69#endif /* _FPGA_REGION_H */