/* SPDX-License-Identifier: GPL-2.0 *//* * Greybus Host Device * * Copyright 2014-2015 Google Inc. * Copyright 2014-2015 Linaro Ltd. */ #ifndef __HD_H#define __HD_H #include <linux/types.h>#include <linux/device.h> struct gb_host_device;struct gb_message; struct gb_hd_driver {	size_t	hd_priv_size; 	int (*cport_allocate)(struct gb_host_device *hd, int cport_id,				unsigned long flags);	void (*cport_release)(struct gb_host_device *hd, u16 cport_id);	int (*cport_enable)(struct gb_host_device *hd, u16 cport_id,				unsigned long flags);	int (*cport_disable)(struct gb_host_device *hd, u16 cport_id);	int (*cport_connected)(struct gb_host_device *hd, u16 cport_id);	int (*cport_flush)(struct gb_host_device *hd, u16 cport_id);	int (*cport_shutdown)(struct gb_host_device *hd, u16 cport_id,				u8 phase, unsigned int timeout);	int (*cport_quiesce)(struct gb_host_device *hd, u16 cport_id,				size_t peer_space, unsigned int timeout);	int (*cport_clear)(struct gb_host_device *hd, u16 cport_id); 	int (*message_send)(struct gb_host_device *hd, u16 dest_cport_id,			struct gb_message *message, gfp_t gfp_mask);	void (*message_cancel)(struct gb_message *message);	int (*latency_tag_enable)(struct gb_host_device *hd, u16 cport_id);	int (*latency_tag_disable)(struct gb_host_device *hd, u16 cport_id);	int (*output)(struct gb_host_device *hd, void *req, u16 size, u8 cmd,		      bool async);}; struct gb_host_device {	struct device dev;	int bus_id;	const struct gb_hd_driver *driver; 	struct list_head modules;	struct list_head connections;	struct ida cport_id_map; 	/* Number of CPorts supported by the UniPro IP */	size_t num_cports; 	/* Host device buffer constraints */	size_t buffer_size_max; 	struct gb_svc *svc;	/* Private data for the host driver */	unsigned long hd_priv[] __aligned(sizeof(s64));};#define to_gb_host_device(d) container_of(d, struct gb_host_device, dev) int gb_hd_cport_reserve(struct gb_host_device *hd, u16 cport_id);void gb_hd_cport_release_reserved(struct gb_host_device *hd, u16 cport_id);int gb_hd_cport_allocate(struct gb_host_device *hd, int cport_id,					unsigned long flags);void gb_hd_cport_release(struct gb_host_device *hd, u16 cport_id); struct gb_host_device *gb_hd_create(struct gb_hd_driver *driver,					struct device *parent,					size_t buffer_size_max,					size_t num_cports);int gb_hd_add(struct gb_host_device *hd);void gb_hd_del(struct gb_host_device *hd);void gb_hd_shutdown(struct gb_host_device *hd);void gb_hd_put(struct gb_host_device *hd);int gb_hd_output(struct gb_host_device *hd, void *req, u16 size, u8 cmd,		 bool in_irq); int gb_hd_init(void);void gb_hd_exit(void); #endif	/* __HD_H */