[linux-2.6-block.git] / net / bluetooth / hci_request.h

/*
   BlueZ - Bluetooth protocol stack for Linux
   Copyright (C) 2014 Intel Corporation

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License version 2 as
   published by the Free Software Foundation;

   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
   SOFTWARE IS DISCLAIMED.
*/

#include <asm/unaligned.h>

#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;
};

void hci_req_init(struct hci_request *req, struct hci_dev *hdev);
void hci_req_purge(struct hci_request *req);
int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
int hci_req_run_skb(struct hci_request *req, hci_req_complete_skb_t complete);
void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
		 const void *param);
void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
		    const void *param, u8 event);
void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status,
			  hci_req_complete_t *req_complete,
			  hci_req_complete_skb_t *req_complete_skb);

int hci_req_sync(struct hci_dev *hdev, int (*req)(struct hci_request *req,
						  unsigned long opt),
		 unsigned long opt, u32 timeout, u8 *hci_status);
int __hci_req_sync(struct hci_dev *hdev, int (*func)(struct hci_request *req,
						     unsigned long opt),
		   unsigned long opt, u32 timeout, u8 *hci_status);
void hci_req_sync_cancel(struct hci_dev *hdev, int err);

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

int __hci_req_hci_power_on(struct hci_dev *hdev);

void __hci_req_write_fast_connectable(struct hci_request *req, bool enable);
void __hci_req_update_name(struct hci_request *req);
void __hci_req_update_eir(struct hci_request *req);

void hci_req_add_le_scan_disable(struct hci_request *req);
void hci_req_add_le_passive_scan(struct hci_request *req);

void hci_req_reenable_advertising(struct hci_dev *hdev);
void __hci_req_enable_advertising(struct hci_request *req);
void __hci_req_disable_advertising(struct hci_request *req);
void __hci_req_update_adv_data(struct hci_request *req, u8 instance);
int hci_req_update_adv_data(struct hci_dev *hdev, u8 instance);
void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance);

int __hci_req_schedule_adv_instance(struct hci_request *req, u8 instance,
				    bool force);
void hci_req_clear_adv_instance(struct hci_dev *hdev, struct sock *sk,
				struct hci_request *req, u8 instance,
				bool force);

void __hci_req_update_class(struct hci_request *req);

/* Returns true if HCI commands were queued */
bool hci_req_stop_discovery(struct hci_request *req);

static inline void hci_req_update_scan(struct hci_dev *hdev)
{
	queue_work(hdev->req_workqueue, &hdev->scan_update);
}

void __hci_req_update_scan(struct hci_request *req);

int hci_update_random_address(struct hci_request *req, bool require_privacy,
			      bool use_rpa, u8 *own_addr_type);

int hci_abort_conn(struct hci_conn *conn, u8 reason);
void __hci_abort_conn(struct hci_request *req, struct hci_conn *conn,
		      u8 reason);

static inline void hci_update_background_scan(struct hci_dev *hdev)
{
	queue_work(hdev->req_workqueue, &hdev->bg_scan_update);
}

void hci_request_setup(struct hci_dev *hdev);
void hci_request_cancel_all(struct hci_dev *hdev);

u8 append_local_name(struct hci_dev *hdev, u8 *ptr, u8 ad_len);

static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type,
				  u8 *data, u8 data_len)
{
	eir[eir_len++] = sizeof(type) + data_len;
	eir[eir_len++] = type;
	memcpy(&eir[eir_len], data, data_len);
	eir_len += data_len;

	return eir_len;
}

static inline u16 eir_append_le16(u8 *eir, u16 eir_len, u8 type, u16 data)
{
	eir[eir_len++] = sizeof(type) + sizeof(data);
	eir[eir_len++] = type;
	put_unaligned_le16(data, &eir[eir_len]);
	eir_len += sizeof(data);

	return eir_len;
}
Commit	Line	Data
0857dd3b JH	1	/*
	2	BlueZ - Bluetooth protocol stack for Linux
	3	Copyright (C) 2014 Intel Corporation
	4
	5	This program is free software; you can redistribute it and/or modify
	6	it under the terms of the GNU General Public License version 2 as
	7	published by the Free Software Foundation;
	8
	9	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	10	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	11	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
	12	IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
	13	CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
	14	WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	15	ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	16	OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	17
	18	ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
	19	COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
	20	SOFTWARE IS DISCLAIMED.
	21	*/
	22
1b422066 MN	23	#include <asm/unaligned.h>
1b422066 MN	24
b504430c JH	25	#define hci_req_sync_lock(hdev) mutex_lock(&hdev->req_lock)
b504430c JH	26	#define hci_req_sync_unlock(hdev) mutex_unlock(&hdev->req_lock)
be91cd05	27
0857dd3b JH	28	struct hci_request {
	29	struct hci_dev *hdev;
	30	struct sk_buff_head cmd_q;
	31
	32	/* If something goes wrong when building the HCI request, the error
	33	* value is stored in this field.
	34	*/
	35	int err;
	36	};
	37
	38	void hci_req_init(struct hci_request req, struct hci_dev hdev);
f17d858e	39	void hci_req_purge(struct hci_request *req);
0857dd3b	40	int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
e6214487	41	int hci_req_run_skb(struct hci_request *req, hci_req_complete_skb_t complete);
0857dd3b JH	42	void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
	43	const void *param);
	44	void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
	45	const void *param, u8 event);
e6214487 JH	46	void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status,
	47	hci_req_complete_t *req_complete,
	48	hci_req_complete_skb_t *req_complete_skb);
0857dd3b	49
a1d01db1 JH	50	int hci_req_sync(struct hci_dev hdev, int (req)(struct hci_request *req,
a1d01db1 JH	51	unsigned long opt),
4ebeee2d	52	unsigned long opt, u32 timeout, u8 *hci_status);
a1d01db1 JH	53	int __hci_req_sync(struct hci_dev hdev, int (func)(struct hci_request *req,
a1d01db1 JH	54	unsigned long opt),
4ebeee2d	55	unsigned long opt, u32 timeout, u8 *hci_status);
b504430c	56	void hci_req_sync_cancel(struct hci_dev *hdev, int err);
be91cd05	57
0857dd3b JH	58	struct sk_buff hci_prepare_cmd(struct hci_dev hdev, u16 opcode, u32 plen,
	59	const void *param);
	60
2ff13894 JH	61	int __hci_req_hci_power_on(struct hci_dev *hdev);
2ff13894 JH	62
bf943cbf	63	void __hci_req_write_fast_connectable(struct hci_request *req, bool enable);
00cf5040	64	void __hci_req_update_name(struct hci_request *req);
b1a8917c	65	void __hci_req_update_eir(struct hci_request *req);
00cf5040	66
0857dd3b JH	67	void hci_req_add_le_scan_disable(struct hci_request *req);
	68	void hci_req_add_le_passive_scan(struct hci_request *req);
	69
f2252570 JH	70	void hci_req_reenable_advertising(struct hci_dev *hdev);
	71	void __hci_req_enable_advertising(struct hci_request *req);
	72	void __hci_req_disable_advertising(struct hci_request *req);
cab054ab JH	73	void __hci_req_update_adv_data(struct hci_request *req, u8 instance);
	74	int hci_req_update_adv_data(struct hci_dev *hdev, u8 instance);
	75	void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance);
f2252570 JH	76
	77	int __hci_req_schedule_adv_instance(struct hci_request *req, u8 instance,
	78	bool force);
37d3a1fa JH	79	void hci_req_clear_adv_instance(struct hci_dev hdev, struct sock sk,
	80	struct hci_request *req, u8 instance,
	81	bool force);
f2252570	82
14bf5eac JH	83	void __hci_req_update_class(struct hci_request *req);
14bf5eac JH	84
2154d3f4 JH	85	/* Returns true if HCI commands were queued */
	86	bool hci_req_stop_discovery(struct hci_request *req);
	87
01b1cb87 JH	88	static inline void hci_req_update_scan(struct hci_dev *hdev)
	89	{
	90	queue_work(hdev->req_workqueue, &hdev->scan_update);
	91	}
	92
	93	void __hci_req_update_scan(struct hci_request *req);
0857dd3b JH	94
0857dd3b JH	95	int hci_update_random_address(struct hci_request *req, bool require_privacy,
82a37ade	96	bool use_rpa, u8 *own_addr_type);
2cf22218	97
dcc0f0d9 JH	98	int hci_abort_conn(struct hci_conn *conn, u8 reason);
	99	void __hci_abort_conn(struct hci_request req, struct hci_conn conn,
	100	u8 reason);
5fc16cc4	101
2e93e53b JH	102	static inline void hci_update_background_scan(struct hci_dev *hdev)
	103	{
	104	queue_work(hdev->req_workqueue, &hdev->bg_scan_update);
	105	}
	106
5fc16cc4 JH	107	void hci_request_setup(struct hci_dev *hdev);
5fc16cc4 JH	108	void hci_request_cancel_all(struct hci_dev *hdev);
1b422066	109
f61851f6 MN	110	u8 append_local_name(struct hci_dev hdev, u8 ptr, u8 ad_len);
f61851f6 MN	111
1b422066 MN	112	static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type,
	113	u8 *data, u8 data_len)
	114	{
	115	eir[eir_len++] = sizeof(type) + data_len;
	116	eir[eir_len++] = type;
	117	memcpy(&eir[eir_len], data, data_len);
	118	eir_len += data_len;
	119
	120	return eir_len;
	121	}
	122
	123	static inline u16 eir_append_le16(u8 *eir, u16 eir_len, u8 type, u16 data)
	124	{
	125	eir[eir_len++] = sizeof(type) + sizeof(data);
	126	eir[eir_len++] = type;
	127	put_unaligned_le16(data, &eir[eir_len]);
	128	eir_len += sizeof(data);
	129
	130	return eir_len;
	131	}