include/net/bluetooth/hci_sync.h

/* 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);
int hci_write_ssp_mode_sync(struct hci_dev *hdev, u8 mode);

int hci_get_random_address(struct hci_dev *hdev, bool require_privacy,
			   bool use_rpa, struct adv_info *adv_instance,
			   u8 *own_addr_type, bdaddr_t *rand_addr);

int hci_update_random_address_sync(struct hci_dev *hdev, bool require_privacy,
				   bool rpa, u8 *own_addr_type);

int hci_update_scan_rsp_data_sync(struct hci_dev *hdev, u8 instance);
int hci_update_adv_data_sync(struct hci_dev *hdev, u8 instance);
int hci_update_adv_data(struct hci_dev *hdev, u8 instance);
int hci_schedule_adv_instance_sync(struct hci_dev *hdev, u8 instance,
				   bool force);

int hci_setup_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance);
int hci_start_ext_adv_sync(struct hci_dev *hdev, u8 instance);
int hci_enable_ext_advertising_sync(struct hci_dev *hdev, u8 instance);
int hci_enable_advertising_sync(struct hci_dev *hdev);
int hci_enable_advertising(struct hci_dev *hdev);

int hci_start_per_adv_sync(struct hci_dev *hdev, u8 instance, u8 data_len,
			   u8 *data, u32 flags, u16 min_interval,
			   u16 max_interval, u16 sync_interval);

int hci_disable_per_advertising_sync(struct hci_dev *hdev, u8 instance);

int hci_remove_advertising_sync(struct hci_dev *hdev, struct sock *sk,
				u8 instance, bool force);
int hci_disable_advertising_sync(struct hci_dev *hdev);
int hci_clear_adv_instance_sync(struct hci_dev *hdev, struct sock *sk,
				u8 instance, bool force);
int hci_update_passive_scan_sync(struct hci_dev *hdev);
int hci_update_passive_scan(struct hci_dev *hdev);
int hci_read_rssi_sync(struct hci_dev *hdev, __le16 handle);
int hci_read_tx_power_sync(struct hci_dev *hdev, __le16 handle, u8 type);
int hci_write_sc_support_sync(struct hci_dev *hdev, u8 val);
int hci_read_clock_sync(struct hci_dev *hdev, struct hci_cp_read_clock *cp);

int hci_write_fast_connectable_sync(struct hci_dev *hdev, bool enable);
int hci_update_scan_sync(struct hci_dev *hdev);
int hci_update_scan(struct hci_dev *hdev);

int hci_write_le_host_supported_sync(struct hci_dev *hdev, u8 le, u8 simul);
int hci_remove_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance,
				     struct sock *sk);
int hci_remove_ext_adv_instance(struct hci_dev *hdev, u8 instance);
struct sk_buff *hci_read_local_oob_data_sync(struct hci_dev *hdev, bool ext,
					     struct sock *sk);

int hci_reset_sync(struct hci_dev *hdev);
int hci_dev_open_sync(struct hci_dev *hdev);
int hci_dev_close_sync(struct hci_dev *hdev);

int hci_powered_update_sync(struct hci_dev *hdev);
int hci_set_powered_sync(struct hci_dev *hdev, u8 val);

int hci_update_discoverable_sync(struct hci_dev *hdev);
int hci_update_discoverable(struct hci_dev *hdev);

int hci_update_connectable_sync(struct hci_dev *hdev);

int hci_inquiry_sync(struct hci_dev *hdev, u8 length, u8 num_rsp);

int hci_start_discovery_sync(struct hci_dev *hdev);
int hci_stop_discovery_sync(struct hci_dev *hdev);

int hci_suspend_sync(struct hci_dev *hdev);
int hci_resume_sync(struct hci_dev *hdev);

struct hci_conn;
struct hci_conn_params;

int hci_abort_conn_sync(struct hci_dev *hdev, struct hci_conn *conn, u8 reason);

int hci_le_create_cis_sync(struct hci_dev *hdev);

int hci_le_remove_cig_sync(struct hci_dev *hdev, u8 handle);

int hci_le_terminate_big_sync(struct hci_dev *hdev, u8 handle, u8 reason);

int hci_le_big_terminate_sync(struct hci_dev *hdev, u8 handle);

int hci_le_pa_terminate_sync(struct hci_dev *hdev, u16 handle);

int hci_connect_acl_sync(struct hci_dev *hdev, struct hci_conn *conn);

int hci_connect_le_sync(struct hci_dev *hdev, struct hci_conn *conn);

int hci_cancel_connect_sync(struct hci_dev *hdev, struct hci_conn *conn);
int hci_le_conn_update_sync(struct hci_dev *hdev, struct hci_conn *conn,
			    struct hci_conn_params *params);