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 18 #include <net/bluetooth/l2cap.h> 19 20 #define A2MP_FEAT_EXT 0x8000 21 22 enum amp_mgr_state { 23 READ_LOC_AMP_INFO, 24 READ_LOC_AMP_ASSOC, 25 READ_LOC_AMP_ASSOC_FINAL, 26 WRITE_REMOTE_AMP_ASSOC, 27 }; 28 29 struct amp_mgr { 30 struct list_head list; 31 struct l2cap_conn *l2cap_conn; 32 struct l2cap_chan *a2mp_chan; 33 struct l2cap_chan *bredr_chan; 34 struct kref kref; 35 __u8 ident; 36 __u8 handle; 37 unsigned long state; 38 unsigned long flags; 39 40 struct list_head amp_ctrls; 41 struct mutex amp_ctrls_lock; 42 }; 43 44 struct a2mp_cmd { 45 __u8 code; 46 __u8 ident; 47 __le16 len; 48 __u8 data[0]; 49 } __packed; 50 51 /* A2MP command codes */ 52 #define A2MP_COMMAND_REJ 0x01 53 struct a2mp_cmd_rej { 54 __le16 reason; 55 __u8 data[0]; 56 } __packed; 57 58 #define A2MP_DISCOVER_REQ 0x02 59 struct a2mp_discov_req { 60 __le16 mtu; 61 __le16 ext_feat; 62 } __packed; 63 64 struct a2mp_cl { 65 __u8 id; 66 __u8 type; 67 __u8 status; 68 } __packed; 69 70 #define A2MP_DISCOVER_RSP 0x03 71 struct a2mp_discov_rsp { 72 __le16 mtu; 73 __le16 ext_feat; 74 struct a2mp_cl cl[0]; 75 } __packed; 76 77 #define A2MP_CHANGE_NOTIFY 0x04 78 #define A2MP_CHANGE_RSP 0x05 79 80 #define A2MP_GETINFO_REQ 0x06 81 struct a2mp_info_req { 82 __u8 id; 83 } __packed; 84 85 #define A2MP_GETINFO_RSP 0x07 86 struct a2mp_info_rsp { 87 __u8 id; 88 __u8 status; 89 __le32 total_bw; 90 __le32 max_bw; 91 __le32 min_latency; 92 __le16 pal_cap; 93 __le16 assoc_size; 94 } __packed; 95 96 #define A2MP_GETAMPASSOC_REQ 0x08 97 struct a2mp_amp_assoc_req { 98 __u8 id; 99 } __packed; 100 101 #define A2MP_GETAMPASSOC_RSP 0x09 102 struct a2mp_amp_assoc_rsp { 103 __u8 id; 104 __u8 status; 105 __u8 amp_assoc[0]; 106 } __packed; 107 108 #define A2MP_CREATEPHYSLINK_REQ 0x0A 109 #define A2MP_DISCONNPHYSLINK_REQ 0x0C 110 struct a2mp_physlink_req { 111 __u8 local_id; 112 __u8 remote_id; 113 __u8 amp_assoc[0]; 114 } __packed; 115 116 #define A2MP_CREATEPHYSLINK_RSP 0x0B 117 #define A2MP_DISCONNPHYSLINK_RSP 0x0D 118 struct a2mp_physlink_rsp { 119 __u8 local_id; 120 __u8 remote_id; 121 __u8 status; 122 } __packed; 123 124 /* A2MP response status */ 125 #define A2MP_STATUS_SUCCESS 0x00 126 #define A2MP_STATUS_INVALID_CTRL_ID 0x01 127 #define A2MP_STATUS_UNABLE_START_LINK_CREATION 0x02 128 #define A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS 0x02 129 #define A2MP_STATUS_COLLISION_OCCURED 0x03 130 #define A2MP_STATUS_DISCONN_REQ_RECVD 0x04 131 #define A2MP_STATUS_PHYS_LINK_EXISTS 0x05 132 #define A2MP_STATUS_SECURITY_VIOLATION 0x06 133 134 extern struct list_head amp_mgr_list; 135 extern struct mutex amp_mgr_list_lock; 136 137 struct amp_mgr *amp_mgr_get(struct amp_mgr *mgr); 138 int amp_mgr_put(struct amp_mgr *mgr); 139 u8 __next_ident(struct amp_mgr *mgr); 140 struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn, 141 struct sk_buff *skb); 142 struct amp_mgr *amp_mgr_lookup_by_state(u8 state); 143 void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len, void *data); 144 void a2mp_discover_amp(struct l2cap_chan *chan); 145 void a2mp_send_getinfo_rsp(struct hci_dev *hdev); 146 void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status); 147 void a2mp_send_create_phy_link_req(struct hci_dev *hdev, u8 status); 148 void a2mp_send_create_phy_link_rsp(struct hci_dev *hdev, u8 status); 149 150 #endif /* __A2MP_H */ 151