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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> |
19 | ||
f97268fc AE |
20 | enum amp_mgr_state { |
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 | }; |
26 | ||
9740e49d | 27 | struct amp_mgr { |
f97268fc | 28 | struct list_head list; |
9740e49d AE |
29 | struct l2cap_conn *l2cap_conn; |
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 | }; |
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 | |
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, |
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 | |
161 | #endif /* __A2MP_H */ |