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97fb5e8d | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
9740e49d AE |
2 | /* |
3 | Copyright (c) 2010,2011 Code Aurora Forum. All rights reserved. | |
4 | Copyright (c) 2011,2012 Intel Corp. | |
5 | ||
9740e49d AE |
6 | */ |
7 | ||
8 | #ifndef __A2MP_H | |
9 | #define __A2MP_H | |
10 | ||
97e8e89d AE |
11 | #include <net/bluetooth/l2cap.h> |
12 | ||
f97268fc AE |
13 | enum amp_mgr_state { |
14 | READ_LOC_AMP_INFO, | |
903e4541 | 15 | READ_LOC_AMP_ASSOC, |
9495b2ee | 16 | READ_LOC_AMP_ASSOC_FINAL, |
8e05e3ba | 17 | WRITE_REMOTE_AMP_ASSOC, |
f97268fc AE |
18 | }; |
19 | ||
9740e49d | 20 | struct amp_mgr { |
f97268fc | 21 | struct list_head list; |
9740e49d AE |
22 | struct l2cap_conn *l2cap_conn; |
23 | struct l2cap_chan *a2mp_chan; | |
93c3e8f5 | 24 | struct l2cap_chan *bredr_chan; |
9740e49d AE |
25 | struct kref kref; |
26 | __u8 ident; | |
27 | __u8 handle; | |
cb6801c6 | 28 | unsigned long state; |
9740e49d | 29 | unsigned long flags; |
52c0d6e5 AE |
30 | |
31 | struct list_head amp_ctrls; | |
32 | struct mutex amp_ctrls_lock; | |
9740e49d AE |
33 | }; |
34 | ||
f6d3c6e7 AE |
35 | struct a2mp_cmd { |
36 | __u8 code; | |
37 | __u8 ident; | |
38 | __le16 len; | |
a7e45454 | 39 | __u8 data[]; |
f6d3c6e7 AE |
40 | } __packed; |
41 | ||
b9058fb6 AE |
42 | /* A2MP command codes */ |
43 | #define A2MP_COMMAND_REJ 0x01 | |
44 | struct a2mp_cmd_rej { | |
45 | __le16 reason; | |
a7e45454 | 46 | __u8 data[]; |
b9058fb6 AE |
47 | } __packed; |
48 | ||
49 | #define A2MP_DISCOVER_REQ 0x02 | |
50 | struct a2mp_discov_req { | |
51 | __le16 mtu; | |
52 | __le16 ext_feat; | |
53 | } __packed; | |
54 | ||
55 | struct a2mp_cl { | |
56 | __u8 id; | |
57 | __u8 type; | |
58 | __u8 status; | |
59 | } __packed; | |
60 | ||
61 | #define A2MP_DISCOVER_RSP 0x03 | |
62 | struct a2mp_discov_rsp { | |
63 | __le16 mtu; | |
64 | __le16 ext_feat; | |
a7e45454 | 65 | struct a2mp_cl cl[]; |
b9058fb6 AE |
66 | } __packed; |
67 | ||
68 | #define A2MP_CHANGE_NOTIFY 0x04 | |
69 | #define A2MP_CHANGE_RSP 0x05 | |
70 | ||
71 | #define A2MP_GETINFO_REQ 0x06 | |
72 | struct a2mp_info_req { | |
73 | __u8 id; | |
74 | } __packed; | |
75 | ||
76 | #define A2MP_GETINFO_RSP 0x07 | |
77 | struct 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 | |
88 | struct a2mp_amp_assoc_req { | |
89 | __u8 id; | |
90 | } __packed; | |
91 | ||
92 | #define A2MP_GETAMPASSOC_RSP 0x09 | |
93 | struct a2mp_amp_assoc_rsp { | |
94 | __u8 id; | |
95 | __u8 status; | |
a7e45454 | 96 | __u8 amp_assoc[]; |
b9058fb6 AE |
97 | } __packed; |
98 | ||
99 | #define A2MP_CREATEPHYSLINK_REQ 0x0A | |
100 | #define A2MP_DISCONNPHYSLINK_REQ 0x0C | |
101 | struct a2mp_physlink_req { | |
102 | __u8 local_id; | |
103 | __u8 remote_id; | |
a7e45454 | 104 | __u8 amp_assoc[]; |
b9058fb6 AE |
105 | } __packed; |
106 | ||
107 | #define A2MP_CREATEPHYSLINK_RSP 0x0B | |
108 | #define A2MP_DISCONNPHYSLINK_RSP 0x0D | |
109 | struct a2mp_physlink_rsp { | |
110 | __u8 local_id; | |
111 | __u8 remote_id; | |
112 | __u8 status; | |
113 | } __packed; | |
114 | ||
e7af522e AE |
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 | ||
f706adfe | 125 | struct amp_mgr *amp_mgr_get(struct amp_mgr *mgr); |
244bc377 AW |
126 | |
127 | #if IS_ENABLED(CONFIG_BT_HS) | |
9740e49d | 128 | int amp_mgr_put(struct amp_mgr *mgr); |
97e8e89d AE |
129 | struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn, |
130 | struct sk_buff *skb); | |
93c3e8f5 | 131 | void a2mp_discover_amp(struct l2cap_chan *chan); |
244bc377 AW |
132 | #else |
133 | static inline int amp_mgr_put(struct amp_mgr *mgr) | |
134 | { | |
135 | return 0; | |
136 | } | |
137 | ||
138 | static inline struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn, | |
139 | struct sk_buff *skb) | |
140 | { | |
141 | return NULL; | |
142 | } | |
143 | ||
144 | static inline void a2mp_discover_amp(struct l2cap_chan *chan) | |
145 | { | |
146 | } | |
147 | #endif | |
148 | ||
8e2a0d92 | 149 | void a2mp_send_getinfo_rsp(struct hci_dev *hdev); |
903e4541 | 150 | void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status); |
9495b2ee | 151 | void a2mp_send_create_phy_link_req(struct hci_dev *hdev, u8 status); |
8e05e3ba | 152 | void a2mp_send_create_phy_link_rsp(struct hci_dev *hdev, u8 status); |
9740e49d AE |
153 | |
154 | #endif /* __A2MP_H */ |