projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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; | |
| 39 | __u8 data[0]; | |
| 40 | } __packed; | |
| 41 | ||
| b9058fb6 AE |
42 | /* A2MP command codes */ |
| 43 | #define A2MP_COMMAND_REJ 0x01 | |
| 44 | struct a2mp_cmd_rej { | |
| 45 | __le16 reason; | |
| 46 | __u8 data[0]; | |
| 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; | |
| 65 | struct a2mp_cl cl[0]; | |
| 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; | |
| 96 | __u8 amp_assoc[0]; | |
| 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; | |
| 104 | __u8 amp_assoc[0]; | |
| 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 */ |