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  *   	ˆl–Ü4ý( ©³( 	Å€fàB¦-ÿÀƒu×_†I|¥�+ÄÃ T    	/* SPDX-License-Identifier: GPL-2.0 */
/*
 * BlueZ - Bluetooth protocol stack for Linux
 *
 * Copyright (C) 2021 Intel Corporation
 */

#define UINT_PTR(_handle)		((void *)((uintptr_t)_handle))
#define PTR_UINT(_ptr)			((uintptr_t)((void *)_ptr))

#define HCI_REQ_DONE	  0
#define HCI_REQ_PEND	  1
#define HCI_REQ_CANCELED  2

#define hci_req_sync_lock(hdev)   mutex_lock(&hdev->req_lock)
#define hci_req_sync_unlock(hdev) mutex_unlock(&hdev->req_lock)

struct hci_request {
	struct hci_dev		*hdev;
	struct sk_buff_head	cmd_q;

	/* If something goes wrong when building the HCI request, the error
	 * value is stored in this field.
	 */
	int			err;
};

typedef int (*hci_cmd_sync_work_func_t)(struct hci_dev *hdev, void *data);
typedef void (*hci_cmd_sync_work_destroy_t)(struct hci_dev *hdev, void *data,
					    int err);

struct hci_cmd_sync_work_entry {
	struct list_head list;
	hci_cmd_sync_work_func_t func;
	void *data;
	hci_cmd_sync_work_destroy_t destroy;
};

struct adv_info;

struct sk_buff *hci_cmd_sync_alloc(struct hci_dev *hdev, u16 opcode, u32 plen,
				   const void *param, struct sock *sk);

/* Function with sync suffix shall not be called with hdev->lock held as they
 * wait the command to complete and in the meantime an event could be received
 * which could attempt to acquire hdev->lock causing a deadlock.
 */
struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
			       const void *param, u32 timeout);
struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
			     const void *param, u32 timeout);
struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
				  const void *param, u8 event, u32 timeout);
struct sk_buff *__hci_cmd_sync_sk(struct hci_dev *hdev, u16 opcode, u32 plen,
				  const void *param, u8 event, u32 timeout,
				  struct sock *sk);
int __hci_cmd_sync_status(struct hci_dev *hdev, u16 opcode, u32 plen,
			  const void *param, u32 timeout);
int __hci_cmd_sync_status_sk(struct hci_dev *hdev, u16 opcode, u32 plen,
			     const void *param, u8 event, u32 timeout,
			     struct sock *sk);
int hci_cmd_sync_status(struct hci_dev *hdev, u16 opcode, u32 plen,
			const void *param, u32 timeout);

void hci_cmd_sync_init(struct hci_dev *hdev);
void hci_cmd_sync_clear(struct hci_dev *hdev);
void hci_cmd_sync_cancel(struct hci_dev *hdev, int err);
void hci_cmd_sync_cancel_sync(struct hci_dev *hdev, int err);

int hci_cmd_sync_submit(struct hci_dev *hdev, hci_cmd_sync_work_func_t func,
			void *data, hci_cmd_sync_work_destroy_t destroy);
int hci_cmd_sync_queue(struct hci_dev *hdev, hci_cmd_sync_work_func_t func,
		       void *data, hci_cmd_sync_work_destroy_t destroy);
int hci_cmd_sync_queue_once(struct hci_dev *hdev, hci_cmd_sync_work_func_t func,
			    void *data, hci_cmd_sync_work_destroy_t destroy);
int hci_cmd_sync_run(struct hci_dev *hdev, hci_cmd_sync_work_func_t func,
		     void *data, hci_cmd_sync_work_destroy_t destroy);
int hci_cmd_sync_run_once(struct hci_dev *hdev, hci_cmd_sync_work_func_t func,
			  void *data, hci_cmd_sync_work_destroy_t destroy);
struct hci_cmd_sync_work_entry *
hci_cmd_sync_lookup_entry(struct hci_dev *hdev, hci_cmd_sync_work_func_t func,
			  void *data, hci_cmd_sync_work_destroy_t destroy);
void hci_cmd_sync_cancel_entry(struct hci_dev *hdev,
			       struct hci_cmd_sync_work_entry *entry);
bool hci_cmd_sync_dequeue(struct hci_dev *hdev, hci_cmd_sync_work_func_t func,
			  void *data, hci_cmd_sync_work_destroy_t destroy);
bool hci_cmd_sync_dequeue_once(struct hci_dev *hdev,
			      hci_cmd_sync_work_func_t func, void *data,
			      hci_cmd_sync_work_destroy_t destroy);

int hci_update_eir_sync(struct hci_dev *hdev);
int hci_update_class_sync(struct hci_dev *hdev);

int hci_update_eir_sync(struct hci_dev *hdev);
int hci_update_class_sync(struct hci_dev *hdev);
int hci_update_name_sync(struct hci_dev *hdev, const u8 *name);
int hci_write_ssp_mode_sync(struct hci_dev *hdev, u8 mode);

int hci_get_