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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 Copyright (c) 2010,2011 Code Aurora Forum. All rights reserved.
4 Copyright (c) 2011,2012 Intel Corp.
5
6*/
7
8#ifndef __A2MP_H
9#define __A2MP_H
10
11#include <net/bluetooth/l2cap.h>
12
13enum amp_mgr_state {
14 READ_LOC_AMP_INFO,
15 READ_LOC_AMP_ASSOC,
16 READ_LOC_AMP_ASSOC_FINAL,
17 WRITE_REMOTE_AMP_ASSOC,
18};
19
20struct amp_mgr {
21 struct list_head list;
22 struct l2cap_conn *l2cap_conn;
23 struct l2cap_chan *a2mp_chan;
24 struct l2cap_chan *bredr_chan;
25 struct kref kref;
26 __u8 ident;
27 __u8 handle;
28 unsigned long state;
29 unsigned long flags;
30
31 struct list_head amp_ctrls;
32 struct mutex amp_ctrls_lock;
33};
34
35struct a2mp_cmd {
36 __u8 code;
37 __u8 ident;
38 __le16 len;
39 __u8 data[];
40} __packed;
41
42/* A2MP command codes */
43#define A2MP_COMMAND_REJ 0x01
44struct a2mp_cmd_rej {
45 __le16 reason;
46 __u8 data[];
47} __packed;
48
49#define A2MP_DISCOVER_REQ 0x02
50struct a2mp_discov_req {
51 __le16 mtu;
52 __le16 ext_feat;
53} __packed;
54
55struct a2mp_cl {
56 __u8 id;
57 __u8 type;
58 __u8 status;
59} __packed;
60
61#define A2MP_DISCOVER_RSP 0x03
62struct a2mp_discov_rsp {
63 __le16 mtu;
64 __le16 ext_feat;
65 struct a2mp_cl cl[];
66} __packed;
67
68#define A2MP_CHANGE_NOTIFY 0x04
69#define A2MP_CHANGE_RSP 0x05
70
71#define A2MP_GETINFO_REQ 0x06
72struct a2mp_info_req {
73 __u8 id;
74} __packed;
75
76#define A2MP_GETINFO_RSP 0x07
77struct a2mp_info_rsp {
78 __u8 id;
79 __u8 status;
80 __le32 total_bw;
81 __le32 max_bw;
82 __le32 min_latency;
83 __le16 pal_cap;
84 __le16 assoc_size;
85} __packed;
86
87#define A2MP_GETAMPASSOC_REQ 0x08
88struct a2mp_amp_assoc_req {
89 __u8 id;
90} __packed;
91
92#define A2MP_GETAMPASSOC_RSP 0x09
93struct a2mp_amp_assoc_rsp {
94 __u8 id;
95 __u8 status;
96 __u8 amp_assoc[];
97} __packed;
98
99#define A2MP_CREATEPHYSLINK_REQ 0x0A
100#define A2MP_DISCONNPHYSLINK_REQ 0x0C
101struct a2mp_physlink_req {
102 __u8 local_id;
103 __u8 remote_id;
104 __u8 amp_assoc[];
105} __packed;
106
107#define A2MP_CREATEPHYSLINK_RSP 0x0B
108#define A2MP_DISCONNPHYSLINK_RSP 0x0D
109struct a2mp_physlink_rsp {
110 __u8 local_id;
111 __u8 remote_id;
112 __u8 status;
113} __packed;
114
115/* A2MP response status */
116#define A2MP_STATUS_SUCCESS 0x00
117#define A2MP_STATUS_INVALID_CTRL_ID 0x01
118#define A2MP_STATUS_UNABLE_START_LINK_CREATION 0x02
119#define A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS 0x02
120#define A2MP_STATUS_COLLISION_OCCURED 0x03
121#define A2MP_STATUS_DISCONN_REQ_RECVD 0x04
122#define A2MP_STATUS_PHYS_LINK_EXISTS 0x05
123#define A2MP_STATUS_SECURITY_VIOLATION 0x06
124
125struct amp_mgr *amp_mgr_get(struct amp_mgr *mgr);
126
127#if IS_ENABLED(CONFIG_BT_HS)
128int amp_mgr_put(struct amp_mgr *mgr);
129struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
130 struct sk_buff *skb);
131void a2mp_discover_amp(struct l2cap_chan *chan);
132#else
133static inline int amp_mgr_put(struct amp_mgr *mgr)
134{
135 return 0;
136}
137
138static inline struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
139 struct sk_buff *skb)
140{
141 return NULL;
142}
143
144static inline void a2mp_discover_amp(struct l2cap_chan *chan)
145{
146}
147#endif
148
149void a2mp_send_getinfo_rsp(struct hci_dev *hdev);
150void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status);
151void a2mp_send_create_phy_link_req(struct hci_dev *hdev, u8 status);
152void a2mp_send_create_phy_link_rsp(struct hci_dev *hdev, u8 status);
153
154#endif /* __A2MP_H */
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 Copyright (c) 2010,2011 Code Aurora Forum. All rights reserved.
4 Copyright (c) 2011,2012 Intel Corp.
5
6*/
7
8#ifndef __A2MP_H
9#define __A2MP_H
10
11#include <net/bluetooth/l2cap.h>
12
13enum amp_mgr_state {
14 READ_LOC_AMP_INFO,
15 READ_LOC_AMP_ASSOC,
16 READ_LOC_AMP_ASSOC_FINAL,
17 WRITE_REMOTE_AMP_ASSOC,
18};
19
20struct amp_mgr {
21 struct list_head list;
22 struct l2cap_conn *l2cap_conn;
23 struct l2cap_chan *a2mp_chan;
24 struct l2cap_chan *bredr_chan;
25 struct kref kref;
26 __u8 ident;
27 __u8 handle;
28 unsigned long state;
29 unsigned long flags;
30
31 struct list_head amp_ctrls;
32 struct mutex amp_ctrls_lock;
33};
34
35struct a2mp_cmd {
36 __u8 code;
37 __u8 ident;
38 __le16 len;
39 __u8 data[];
40} __packed;
41
42/* A2MP command codes */
43#define A2MP_COMMAND_REJ 0x01
44struct a2mp_cmd_rej {
45 __le16 reason;
46 __u8 data[];
47} __packed;
48
49#define A2MP_DISCOVER_REQ 0x02
50struct a2mp_discov_req {
51 __le16 mtu;
52 __le16 ext_feat;
53} __packed;
54
55struct a2mp_cl {
56 __u8 id;
57 __u8 type;
58 __u8 status;
59} __packed;
60
61#define A2MP_DISCOVER_RSP 0x03
62struct a2mp_discov_rsp {
63 __le16 mtu;
64 __le16 ext_feat;
65 struct a2mp_cl cl[];
66} __packed;
67
68#define A2MP_CHANGE_NOTIFY 0x04
69#define A2MP_CHANGE_RSP 0x05
70
71#define A2MP_GETINFO_REQ 0x06
72struct a2mp_info_req {
73 __u8 id;
74} __packed;
75
76#define A2MP_GETINFO_RSP 0x07
77struct a2mp_info_rsp {
78 __u8 id;
79 __u8 status;
80 __le32 total_bw;
81 __le32 max_bw;
82 __le32 min_latency;
83 __le16 pal_cap;
84 __le16 assoc_size;
85} __packed;
86
87#define A2MP_GETAMPASSOC_REQ 0x08
88struct a2mp_amp_assoc_req {
89 __u8 id;
90} __packed;
91
92#define A2MP_GETAMPASSOC_RSP 0x09
93struct a2mp_amp_assoc_rsp {
94 __u8 id;
95 __u8 status;
96 __u8 amp_assoc[];
97} __packed;
98
99#define A2MP_CREATEPHYSLINK_REQ 0x0A
100#define A2MP_DISCONNPHYSLINK_REQ 0x0C
101struct a2mp_physlink_req {
102 __u8 local_id;
103 __u8 remote_id;
104 __u8 amp_assoc[];
105} __packed;
106
107#define A2MP_CREATEPHYSLINK_RSP 0x0B
108#define A2MP_DISCONNPHYSLINK_RSP 0x0D
109struct a2mp_physlink_rsp {
110 __u8 local_id;
111 __u8 remote_id;
112 __u8 status;
113} __packed;
114
115/* A2MP response status */
116#define A2MP_STATUS_SUCCESS 0x00
117#define A2MP_STATUS_INVALID_CTRL_ID 0x01
118#define A2MP_STATUS_UNABLE_START_LINK_CREATION 0x02
119#define A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS 0x02
120#define A2MP_STATUS_COLLISION_OCCURED 0x03
121#define A2MP_STATUS_DISCONN_REQ_RECVD 0x04
122#define A2MP_STATUS_PHYS_LINK_EXISTS 0x05
123#define A2MP_STATUS_SECURITY_VIOLATION 0x06
124
125struct amp_mgr *amp_mgr_get(struct amp_mgr *mgr);
126
127#if IS_ENABLED(CONFIG_BT_HS)
128int amp_mgr_put(struct amp_mgr *mgr);
129struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
130 struct sk_buff *skb);
131void a2mp_discover_amp(struct l2cap_chan *chan);
132#else
133static inline int amp_mgr_put(struct amp_mgr *mgr)
134{
135 return 0;
136}
137
138static inline struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
139 struct sk_buff *skb)
140{
141 return NULL;
142}
143
144static inline void a2mp_discover_amp(struct l2cap_chan *chan)
145{
146}
147#endif
148
149void a2mp_send_getinfo_rsp(struct hci_dev *hdev);
150void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status);
151void a2mp_send_create_phy_link_req(struct hci_dev *hdev, u8 status);
152void a2mp_send_create_phy_link_rsp(struct hci_dev *hdev, u8 status);
153
154#endif /* __A2MP_H */