[linux-2.6-block.git] / net / bluetooth / a2mp.h

/*
   Copyright (c) 2010,2011 Code Aurora Forum.  All rights reserved.
   Copyright (c) 2011,2012 Intel Corp.

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

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
*/

#ifndef __A2MP_H
#define __A2MP_H

#include <net/bluetooth/l2cap.h>

enum amp_mgr_state {
	READ_LOC_AMP_INFO,
	READ_LOC_AMP_ASSOC,
	READ_LOC_AMP_ASSOC_FINAL,
	WRITE_REMOTE_AMP_ASSOC,
};

struct amp_mgr {
	struct list_head	list;
	struct l2cap_conn	*l2cap_conn;
	struct l2cap_chan	*a2mp_chan;
	struct l2cap_chan	*bredr_chan;
	struct kref		kref;
	__u8			ident;
	__u8			handle;
	unsigned long		state;
	unsigned long		flags;

	struct list_head	amp_ctrls;
	struct mutex		amp_ctrls_lock;
};

struct a2mp_cmd {
	__u8	code;
	__u8	ident;
	__le16	len;
	__u8	data[0];
} __packed;

/* A2MP command codes */
#define A2MP_COMMAND_REJ         0x01
struct a2mp_cmd_rej {
	__le16	reason;
	__u8	data[0];
} __packed;

#define A2MP_DISCOVER_REQ        0x02
struct a2mp_discov_req {
	__le16	mtu;
	__le16	ext_feat;
} __packed;

struct a2mp_cl {
	__u8	id;
	__u8	type;
	__u8	status;
} __packed;

#define A2MP_DISCOVER_RSP        0x03
struct a2mp_discov_rsp {
	__le16     mtu;
	__le16     ext_feat;
	struct a2mp_cl cl[0];
} __packed;

#define A2MP_CHANGE_NOTIFY       0x04
#define A2MP_CHANGE_RSP          0x05

#define A2MP_GETINFO_REQ         0x06
struct a2mp_info_req {
	__u8       id;
} __packed;

#define A2MP_GETINFO_RSP         0x07
struct a2mp_info_rsp {
	__u8	id;
	__u8	status;
	__le32	total_bw;
	__le32	max_bw;
	__le32	min_latency;
	__le16	pal_cap;
	__le16	assoc_size;
} __packed;

#define A2MP_GETAMPASSOC_REQ     0x08
struct a2mp_amp_assoc_req {
	__u8	id;
} __packed;

#define A2MP_GETAMPASSOC_RSP     0x09
struct a2mp_amp_assoc_rsp {
	__u8	id;
	__u8	status;
	__u8	amp_assoc[0];
} __packed;

#define A2MP_CREATEPHYSLINK_REQ  0x0A
#define A2MP_DISCONNPHYSLINK_REQ 0x0C
struct a2mp_physlink_req {
	__u8	local_id;
	__u8	remote_id;
	__u8	amp_assoc[0];
} __packed;

#define A2MP_CREATEPHYSLINK_RSP  0x0B
#define A2MP_DISCONNPHYSLINK_RSP 0x0D
struct a2mp_physlink_rsp {
	__u8	local_id;
	__u8	remote_id;
	__u8	status;
} __packed;

/* A2MP response status */
#define A2MP_STATUS_SUCCESS			0x00
#define A2MP_STATUS_INVALID_CTRL_ID		0x01
#define A2MP_STATUS_UNABLE_START_LINK_CREATION	0x02
#define A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS	0x02
#define A2MP_STATUS_COLLISION_OCCURED		0x03
#define A2MP_STATUS_DISCONN_REQ_RECVD		0x04
#define A2MP_STATUS_PHYS_LINK_EXISTS		0x05
#define A2MP_STATUS_SECURITY_VIOLATION		0x06

struct amp_mgr *amp_mgr_get(struct amp_mgr *mgr);

#if IS_ENABLED(CONFIG_BT_HS)
int amp_mgr_put(struct amp_mgr *mgr);
struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
				       struct sk_buff *skb);
void a2mp_discover_amp(struct l2cap_chan *chan);
#else
static inline int amp_mgr_put(struct amp_mgr *mgr)
{
	return 0;
}

static inline struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
						     struct sk_buff *skb)
{
	return NULL;
}

static inline void a2mp_discover_amp(struct l2cap_chan *chan)
{
}
#endif

void a2mp_send_getinfo_rsp(struct hci_dev *hdev);
void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status);
void a2mp_send_create_phy_link_req(struct hci_dev *hdev, u8 status);
void a2mp_send_create_phy_link_rsp(struct hci_dev *hdev, u8 status);

#endif /* __A2MP_H */
Commit	Line	Data
9740e49d AE	1	/*
	2	Copyright (c) 2010,2011 Code Aurora Forum. All rights reserved.
	3	Copyright (c) 2011,2012 Intel Corp.
	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 and
	7	only version 2 as published by the Free Software Foundation.
	8
	9	This program is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	GNU General Public License for more details.
	13	*/
	14
	15	#ifndef __A2MP_H
	16	#define __A2MP_H
	17
97e8e89d AE	18	#include <net/bluetooth/l2cap.h>
97e8e89d AE	19
f97268fc AE	20	enum amp_mgr_state {
f97268fc AE	21	READ_LOC_AMP_INFO,
903e4541	22	READ_LOC_AMP_ASSOC,
9495b2ee	23	READ_LOC_AMP_ASSOC_FINAL,
8e05e3ba	24	WRITE_REMOTE_AMP_ASSOC,
f97268fc AE	25	};
f97268fc AE	26
9740e49d	27	struct amp_mgr {
f97268fc	28	struct list_head list;
9740e49d AE	29	struct l2cap_conn *l2cap_conn;
9740e49d AE	30	struct l2cap_chan *a2mp_chan;
93c3e8f5	31	struct l2cap_chan *bredr_chan;
9740e49d AE	32	struct kref kref;
	33	__u8 ident;
	34	__u8 handle;
cb6801c6	35	unsigned long state;
9740e49d	36	unsigned long flags;
52c0d6e5 AE	37
	38	struct list_head amp_ctrls;
	39	struct mutex amp_ctrls_lock;
9740e49d AE	40	};
9740e49d AE	41
f6d3c6e7 AE	42	struct a2mp_cmd {
	43	__u8 code;
	44	__u8 ident;
	45	__le16 len;
	46	__u8 data[0];
	47	} __packed;
	48
b9058fb6 AE	49	/* A2MP command codes */
	50	#define A2MP_COMMAND_REJ 0x01
	51	struct a2mp_cmd_rej {
	52	__le16 reason;
	53	__u8 data[0];
	54	} __packed;
	55
	56	#define A2MP_DISCOVER_REQ 0x02
	57	struct a2mp_discov_req {
	58	__le16 mtu;
	59	__le16 ext_feat;
	60	} __packed;
	61
	62	struct a2mp_cl {
	63	__u8 id;
	64	__u8 type;
	65	__u8 status;
	66	} __packed;
	67
	68	#define A2MP_DISCOVER_RSP 0x03
	69	struct a2mp_discov_rsp {
	70	__le16 mtu;
	71	__le16 ext_feat;
	72	struct a2mp_cl cl[0];
	73	} __packed;
	74
	75	#define A2MP_CHANGE_NOTIFY 0x04
	76	#define A2MP_CHANGE_RSP 0x05
	77
	78	#define A2MP_GETINFO_REQ 0x06
	79	struct a2mp_info_req {
	80	__u8 id;
	81	} __packed;
	82
	83	#define A2MP_GETINFO_RSP 0x07
	84	struct a2mp_info_rsp {
	85	__u8 id;
	86	__u8 status;
	87	__le32 total_bw;
	88	__le32 max_bw;
	89	__le32 min_latency;
	90	__le16 pal_cap;
	91	__le16 assoc_size;
	92	} __packed;
	93
	94	#define A2MP_GETAMPASSOC_REQ 0x08
	95	struct a2mp_amp_assoc_req {
	96	__u8 id;
	97	} __packed;
	98
	99	#define A2MP_GETAMPASSOC_RSP 0x09
	100	struct a2mp_amp_assoc_rsp {
	101	__u8 id;
	102	__u8 status;
	103	__u8 amp_assoc[0];
	104	} __packed;
	105
	106	#define A2MP_CREATEPHYSLINK_REQ 0x0A
	107	#define A2MP_DISCONNPHYSLINK_REQ 0x0C
	108	struct a2mp_physlink_req {
	109	__u8 local_id;
	110	__u8 remote_id;
	111	__u8 amp_assoc[0];
	112	} __packed;
113
114	#define A2MP_CREATEPHYSLINK_RSP 0x0B
115	#define A2MP_DISCONNPHYSLINK_RSP 0x0D
116	struct a2mp_physlink_rsp {
117	__u8 local_id;
118	__u8 remote_id;
119	__u8 status;
120	} __packed;
121
e7af522e AE	122	/* A2MP response status */
	123	#define A2MP_STATUS_SUCCESS 0x00
	124	#define A2MP_STATUS_INVALID_CTRL_ID 0x01
	125	#define A2MP_STATUS_UNABLE_START_LINK_CREATION 0x02
	126	#define A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS 0x02
	127	#define A2MP_STATUS_COLLISION_OCCURED 0x03
	128	#define A2MP_STATUS_DISCONN_REQ_RECVD 0x04
	129	#define A2MP_STATUS_PHYS_LINK_EXISTS 0x05
	130	#define A2MP_STATUS_SECURITY_VIOLATION 0x06
	131
f706adfe	132	struct amp_mgr amp_mgr_get(struct amp_mgr mgr);
244bc377 AW	133
244bc377 AW	134	#if IS_ENABLED(CONFIG_BT_HS)
9740e49d	135	int amp_mgr_put(struct amp_mgr *mgr);
97e8e89d AE	136	struct l2cap_chan a2mp_channel_create(struct l2cap_conn conn,
97e8e89d AE	137	struct sk_buff *skb);
93c3e8f5	138	void a2mp_discover_amp(struct l2cap_chan *chan);
244bc377 AW	139	#else
	140	static inline int amp_mgr_put(struct amp_mgr *mgr)
	141	{
	142	return 0;
	143	}
	144
	145	static inline struct l2cap_chan a2mp_channel_create(struct l2cap_conn conn,
	146	struct sk_buff *skb)
	147	{
	148	return NULL;
	149	}
	150
	151	static inline void a2mp_discover_amp(struct l2cap_chan *chan)
	152	{
	153	}
	154	#endif
	155
8e2a0d92	156	void a2mp_send_getinfo_rsp(struct hci_dev *hdev);
903e4541	157	void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status);
9495b2ee	158	void a2mp_send_create_phy_link_req(struct hci_dev *hdev, u8 status);
8e05e3ba	159	void a2mp_send_create_phy_link_rsp(struct hci_dev *hdev, u8 status);
9740e49d AE	160
9740e49d AE	161	#endif /* __A2MP_H */