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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _FPGA_REGION_H
#define _FPGA_REGION_H
#include <linux/device.h>
#include <linux/fpga/fpga-mgr.h>
#include <linux/fpga/fpga-bridge.h>
struct fpga_region;
/**
* struct fpga_region_info - collection of parameters an FPGA Region
* @mgr: fpga region manager
* @compat_id: FPGA region id for compatibility check.
* @priv: fpga region private data
* @get_bridges: optional function to get bridges to a list
*
* fpga_region_info contains parameters for the register_full function.
* These are separated into an info structure because they some are optional
* others could be added to in the future. The info structure facilitates
* maintaining a stable API.
*/
struct fpga_region_info {
struct fpga_manager *mgr;
struct fpga_compat_id *compat_id;
void *priv;
int (*get_bridges)(struct fpga_region *region);
};
/**
* struct fpga_region - FPGA Region structure
* @dev: FPGA Region device
* @mutex: enforces exclusive reference to region
* @bridge_list: list of FPGA bridges specified in region
* @mgr: FPGA manager
* @info: FPGA image info
* @compat_id: FPGA region id for compatibility check.
* @ops_owner: module containing the get_bridges function
* @priv: private data
* @get_bridges: optional function to get bridges to a list
*/
struct fpga_region {
struct device dev;
struct mutex mutex; /* for exclusive reference to region */
struct list_head bridge_list;
struct fpga_manager *mgr;
struct fpga_image_info *info;
struct fpga_compat_id *compat_id;
struct module *ops_owner;
void *priv;
int (*get_bridges)(struct fpga_region *region);
};
#define to_fpga_region(d) container_of(d, struct fpga_region, dev)
struct fpga_region *fpga_region_class_find(
struct device *start, const void *data,
int (*match)(struct device *, const void *));
int fpga_region_program_fpga(struct fpga_region *region);
#define fpga_region_register_full(parent, info) \
__fpga_region_register_full(parent, info, THIS_MODULE)
struct fpga_region *
__fpga_region_register_full(struct device *parent, const struct fpga_region_info *info,
struct module *owner);
#define fpga_region_register(parent, mgr, get_bridges) \
__fpga_region_register(parent, mgr, get_bridges, THIS_MODULE)
struct fpga_region *
__fpga_region_register(struct device *parent, struct fpga_manager *mgr,
int (*get_bridges)(struct fpga_region *), struct module *owner);
void fpga_region_unregister(struct fpga_region *region);
#endif /* _FPGA_REGION_H */
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