1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun Copyright (c) 2010,2011 Code Aurora Forum. All rights reserved.
4*4882a593Smuzhiyun Copyright (c) 2011,2012 Intel Corp.
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #ifndef __A2MP_H
9*4882a593Smuzhiyun #define __A2MP_H
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <net/bluetooth/l2cap.h>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun enum amp_mgr_state {
14*4882a593Smuzhiyun READ_LOC_AMP_INFO,
15*4882a593Smuzhiyun READ_LOC_AMP_ASSOC,
16*4882a593Smuzhiyun READ_LOC_AMP_ASSOC_FINAL,
17*4882a593Smuzhiyun WRITE_REMOTE_AMP_ASSOC,
18*4882a593Smuzhiyun };
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun struct amp_mgr {
21*4882a593Smuzhiyun struct list_head list;
22*4882a593Smuzhiyun struct l2cap_conn *l2cap_conn;
23*4882a593Smuzhiyun struct l2cap_chan *a2mp_chan;
24*4882a593Smuzhiyun struct l2cap_chan *bredr_chan;
25*4882a593Smuzhiyun struct kref kref;
26*4882a593Smuzhiyun __u8 ident;
27*4882a593Smuzhiyun __u8 handle;
28*4882a593Smuzhiyun unsigned long state;
29*4882a593Smuzhiyun unsigned long flags;
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun struct list_head amp_ctrls;
32*4882a593Smuzhiyun struct mutex amp_ctrls_lock;
33*4882a593Smuzhiyun };
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun struct a2mp_cmd {
36*4882a593Smuzhiyun __u8 code;
37*4882a593Smuzhiyun __u8 ident;
38*4882a593Smuzhiyun __le16 len;
39*4882a593Smuzhiyun __u8 data[];
40*4882a593Smuzhiyun } __packed;
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun /* A2MP command codes */
43*4882a593Smuzhiyun #define A2MP_COMMAND_REJ 0x01
44*4882a593Smuzhiyun struct a2mp_cmd_rej {
45*4882a593Smuzhiyun __le16 reason;
46*4882a593Smuzhiyun __u8 data[];
47*4882a593Smuzhiyun } __packed;
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun #define A2MP_DISCOVER_REQ 0x02
50*4882a593Smuzhiyun struct a2mp_discov_req {
51*4882a593Smuzhiyun __le16 mtu;
52*4882a593Smuzhiyun __le16 ext_feat;
53*4882a593Smuzhiyun } __packed;
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun struct a2mp_cl {
56*4882a593Smuzhiyun __u8 id;
57*4882a593Smuzhiyun __u8 type;
58*4882a593Smuzhiyun __u8 status;
59*4882a593Smuzhiyun } __packed;
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun #define A2MP_DISCOVER_RSP 0x03
62*4882a593Smuzhiyun struct a2mp_discov_rsp {
63*4882a593Smuzhiyun __le16 mtu;
64*4882a593Smuzhiyun __le16 ext_feat;
65*4882a593Smuzhiyun struct a2mp_cl cl[];
66*4882a593Smuzhiyun } __packed;
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun #define A2MP_CHANGE_NOTIFY 0x04
69*4882a593Smuzhiyun #define A2MP_CHANGE_RSP 0x05
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun #define A2MP_GETINFO_REQ 0x06
72*4882a593Smuzhiyun struct a2mp_info_req {
73*4882a593Smuzhiyun __u8 id;
74*4882a593Smuzhiyun } __packed;
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun #define A2MP_GETINFO_RSP 0x07
77*4882a593Smuzhiyun struct a2mp_info_rsp {
78*4882a593Smuzhiyun __u8 id;
79*4882a593Smuzhiyun __u8 status;
80*4882a593Smuzhiyun __le32 total_bw;
81*4882a593Smuzhiyun __le32 max_bw;
82*4882a593Smuzhiyun __le32 min_latency;
83*4882a593Smuzhiyun __le16 pal_cap;
84*4882a593Smuzhiyun __le16 assoc_size;
85*4882a593Smuzhiyun } __packed;
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun #define A2MP_GETAMPASSOC_REQ 0x08
88*4882a593Smuzhiyun struct a2mp_amp_assoc_req {
89*4882a593Smuzhiyun __u8 id;
90*4882a593Smuzhiyun } __packed;
91*4882a593Smuzhiyun
92*4882a593Smuzhiyun #define A2MP_GETAMPASSOC_RSP 0x09
93*4882a593Smuzhiyun struct a2mp_amp_assoc_rsp {
94*4882a593Smuzhiyun __u8 id;
95*4882a593Smuzhiyun __u8 status;
96*4882a593Smuzhiyun __u8 amp_assoc[];
97*4882a593Smuzhiyun } __packed;
98*4882a593Smuzhiyun
99*4882a593Smuzhiyun #define A2MP_CREATEPHYSLINK_REQ 0x0A
100*4882a593Smuzhiyun #define A2MP_DISCONNPHYSLINK_REQ 0x0C
101*4882a593Smuzhiyun struct a2mp_physlink_req {
102*4882a593Smuzhiyun __u8 local_id;
103*4882a593Smuzhiyun __u8 remote_id;
104*4882a593Smuzhiyun __u8 amp_assoc[];
105*4882a593Smuzhiyun } __packed;
106*4882a593Smuzhiyun
107*4882a593Smuzhiyun #define A2MP_CREATEPHYSLINK_RSP 0x0B
108*4882a593Smuzhiyun #define A2MP_DISCONNPHYSLINK_RSP 0x0D
109*4882a593Smuzhiyun struct a2mp_physlink_rsp {
110*4882a593Smuzhiyun __u8 local_id;
111*4882a593Smuzhiyun __u8 remote_id;
112*4882a593Smuzhiyun __u8 status;
113*4882a593Smuzhiyun } __packed;
114*4882a593Smuzhiyun
115*4882a593Smuzhiyun /* A2MP response status */
116*4882a593Smuzhiyun #define A2MP_STATUS_SUCCESS 0x00
117*4882a593Smuzhiyun #define A2MP_STATUS_INVALID_CTRL_ID 0x01
118*4882a593Smuzhiyun #define A2MP_STATUS_UNABLE_START_LINK_CREATION 0x02
119*4882a593Smuzhiyun #define A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS 0x02
120*4882a593Smuzhiyun #define A2MP_STATUS_COLLISION_OCCURED 0x03
121*4882a593Smuzhiyun #define A2MP_STATUS_DISCONN_REQ_RECVD 0x04
122*4882a593Smuzhiyun #define A2MP_STATUS_PHYS_LINK_EXISTS 0x05
123*4882a593Smuzhiyun #define A2MP_STATUS_SECURITY_VIOLATION 0x06
124*4882a593Smuzhiyun
125*4882a593Smuzhiyun struct amp_mgr *amp_mgr_get(struct amp_mgr *mgr);
126*4882a593Smuzhiyun
127*4882a593Smuzhiyun #if IS_ENABLED(CONFIG_BT_HS)
128*4882a593Smuzhiyun int amp_mgr_put(struct amp_mgr *mgr);
129*4882a593Smuzhiyun struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
130*4882a593Smuzhiyun struct sk_buff *skb);
131*4882a593Smuzhiyun void a2mp_discover_amp(struct l2cap_chan *chan);
132*4882a593Smuzhiyun #else
amp_mgr_put(struct amp_mgr * mgr)133*4882a593Smuzhiyun static inline int amp_mgr_put(struct amp_mgr *mgr)
134*4882a593Smuzhiyun {
135*4882a593Smuzhiyun return 0;
136*4882a593Smuzhiyun }
137*4882a593Smuzhiyun
a2mp_channel_create(struct l2cap_conn * conn,struct sk_buff * skb)138*4882a593Smuzhiyun static inline struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
139*4882a593Smuzhiyun struct sk_buff *skb)
140*4882a593Smuzhiyun {
141*4882a593Smuzhiyun return NULL;
142*4882a593Smuzhiyun }
143*4882a593Smuzhiyun
a2mp_discover_amp(struct l2cap_chan * chan)144*4882a593Smuzhiyun static inline void a2mp_discover_amp(struct l2cap_chan *chan)
145*4882a593Smuzhiyun {
146*4882a593Smuzhiyun }
147*4882a593Smuzhiyun #endif
148*4882a593Smuzhiyun
149*4882a593Smuzhiyun void a2mp_send_getinfo_rsp(struct hci_dev *hdev);
150*4882a593Smuzhiyun void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status);
151*4882a593Smuzhiyun void a2mp_send_create_phy_link_req(struct hci_dev *hdev, u8 status);
152*4882a593Smuzhiyun void a2mp_send_create_phy_link_rsp(struct hci_dev *hdev, u8 status);
153*4882a593Smuzhiyun
154*4882a593Smuzhiyun #endif /* __A2MP_H */
155