| /* |
| Copyright (c) 2010-2012 The Linux Foundation. All rights reserved. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License version 2 and |
| only version 2 as published by the Free Software Foundation. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| */ |
| |
| #ifndef __AMP_H |
| #define __AMP_H |
| |
| /* AMP defaults */ |
| |
| #define A2MP_RSP_TIMEOUT (8000) /* 8 seconds */ |
| |
| /* A2MP Protocol */ |
| |
| /* A2MP command codes */ |
| #define A2MP_COMMAND_REJ 0x01 |
| #define A2MP_DISCOVER_REQ 0x02 |
| #define A2MP_DISCOVER_RSP 0x03 |
| #define A2MP_CHANGE_NOTIFY 0x04 |
| #define A2MP_CHANGE_RSP 0x05 |
| #define A2MP_GETINFO_REQ 0x06 |
| #define A2MP_GETINFO_RSP 0x07 |
| #define A2MP_GETAMPASSOC_REQ 0x08 |
| #define A2MP_GETAMPASSOC_RSP 0x09 |
| #define A2MP_CREATEPHYSLINK_REQ 0x0A |
| #define A2MP_CREATEPHYSLINK_RSP 0x0B |
| #define A2MP_DISCONNPHYSLINK_REQ 0x0C |
| #define A2MP_DISCONNPHYSLINK_RSP 0x0D |
| |
| struct a2mp_cmd_hdr { |
| __u8 code; |
| __u8 ident; |
| __le16 len; |
| } __packed; |
| |
| struct a2mp_cmd_rej { |
| __le16 reason; |
| } __packed; |
| |
| struct a2mp_discover_req { |
| __le16 mtu; |
| __le16 ext_feat; |
| } __packed; |
| |
| struct a2mp_cl { |
| __u8 id; |
| __u8 type; |
| __u8 status; |
| } __packed; |
| |
| struct a2mp_discover_rsp { |
| __le16 mtu; |
| __le16 ext_feat; |
| struct a2mp_cl cl[0]; |
| } __packed; |
| |
| struct a2mp_getinfo_req { |
| __u8 id; |
| } __packed; |
| |
| struct a2mp_getinfo_rsp { |
| __u8 id; |
| __u8 status; |
| __le32 total_bw; |
| __le32 max_bw; |
| __le32 min_latency; |
| __le16 pal_cap; |
| __le16 assoc_size; |
| } __packed; |
| |
| struct a2mp_getampassoc_req { |
| __u8 id; |
| } __packed; |
| |
| struct a2mp_getampassoc_rsp { |
| __u8 id; |
| __u8 status; |
| __u8 amp_assoc[0]; |
| } __packed; |
| |
| struct a2mp_createphyslink_req { |
| __u8 local_id; |
| __u8 remote_id; |
| __u8 amp_assoc[0]; |
| } __packed; |
| |
| struct a2mp_createphyslink_rsp { |
| __u8 local_id; |
| __u8 remote_id; |
| __u8 status; |
| } __packed; |
| |
| struct a2mp_disconnphyslink_req { |
| __u8 local_id; |
| __u8 remote_id; |
| } __packed; |
| |
| struct a2mp_disconnphyslink_rsp { |
| __u8 local_id; |
| __u8 remote_id; |
| __u8 status; |
| } __packed; |
| |
| |
| /* L2CAP-AMP module interface */ |
| int amp_init(void); |
| void amp_exit(void); |
| |
| /* L2CAP-AMP fixed channel interface */ |
| void amp_conn_ind(struct hci_conn *hcon, struct sk_buff *skb); |
| |
| /* L2CAP-AMP link interface */ |
| void amp_create_physical(struct l2cap_conn *conn, struct sock *sk); |
| void amp_accept_physical(struct l2cap_conn *conn, u8 id, struct sock *sk); |
| |
| /* AMP manager internals */ |
| struct amp_ctrl { |
| struct amp_mgr *mgr; |
| __u8 id; |
| __u8 type; |
| __u8 status; |
| __u32 total_bw; |
| __u32 max_bw; |
| __u32 min_latency; |
| __u16 pal_cap; |
| __u16 max_assoc_size; |
| }; |
| |
| struct amp_mgr { |
| struct list_head list; |
| __u8 discovered; |
| __u8 next_ident; |
| struct l2cap_conn *l2cap_conn; |
| struct socket *a2mp_sock; |
| struct list_head ctx_list; |
| rwlock_t ctx_list_lock; |
| struct amp_ctrl *ctrls; /* @@ TODO s.b. list of controllers */ |
| struct sk_buff *skb; |
| __u8 connected; |
| }; |
| |
| /* AMP Manager signalling contexts */ |
| #define AMP_GETAMPASSOC 1 |
| #define AMP_CREATEPHYSLINK 2 |
| #define AMP_ACCEPTPHYSLINK 3 |
| #define AMP_CREATELOGLINK 4 |
| #define AMP_ACCEPTLOGLINK 5 |
| |
| /* Get AMP Assoc sequence */ |
| #define AMP_GAA_INIT 0 |
| #define AMP_GAA_RLAA_COMPLETE 1 |
| struct amp_gaa_state { |
| __u8 req_ident; |
| __u16 len_so_far; |
| __u8 *assoc; |
| }; |
| |
| /* Create Physical Link sequence */ |
| #define AMP_CPL_INIT 0 |
| #define AMP_CPL_DISC_RSP 1 |
| #define AMP_CPL_GETINFO_RSP 2 |
| #define AMP_CPL_GAA_RSP 3 |
| #define AMP_CPL_CPL_STATUS 4 |
| #define AMP_CPL_WRA_COMPLETE 5 |
| #define AMP_CPL_CHANNEL_SELECT 6 |
| #define AMP_CPL_RLA_COMPLETE 7 |
| #define AMP_CPL_PL_COMPLETE 8 |
| #define AMP_CPL_PL_CANCEL 9 |
| struct amp_cpl_state { |
| __u8 remote_id; |
| __u16 max_len; |
| __u8 *remote_assoc; |
| __u8 *local_assoc; |
| __u16 len_so_far; |
| __u16 rem_len; |
| __u8 phy_handle; |
| }; |
| |
| /* Accept Physical Link sequence */ |
| #define AMP_APL_INIT 0 |
| #define AMP_APL_APL_STATUS 1 |
| #define AMP_APL_WRA_COMPLETE 2 |
| #define AMP_APL_PL_COMPLETE 3 |
| struct amp_apl_state { |
| __u8 remote_id; |
| __u8 req_ident; |
| __u8 *remote_assoc; |
| __u16 len_so_far; |
| __u16 rem_len; |
| __u8 phy_handle; |
| }; |
| |
| /* Create/Accept Logical Link sequence */ |
| #define AMP_LOG_INIT 0 |
| #define AMP_LOG_LL_STATUS 1 |
| #define AMP_LOG_LL_COMPLETE 2 |
| struct amp_log_state { |
| __u8 remote_id; |
| }; |
| |
| /* Possible event types a context may wait for */ |
| #define AMP_INIT 0x01 |
| #define AMP_HCI_EVENT 0x02 |
| #define AMP_HCI_CMD_CMPLT 0x04 |
| #define AMP_HCI_CMD_STATUS 0x08 |
| #define AMP_A2MP_RSP 0x10 |
| #define AMP_KILLED 0x20 |
| #define AMP_CANCEL 0x40 |
| struct amp_ctx { |
| struct list_head list; |
| struct amp_mgr *mgr; |
| struct hci_dev *hdev; |
| __u8 type; |
| __u8 state; |
| union { |
| struct amp_gaa_state gaa; |
| struct amp_cpl_state cpl; |
| struct amp_apl_state apl; |
| } d; |
| __u8 evt_type; |
| __u8 evt_code; |
| __u16 opcode; |
| __u8 id; |
| __u8 rsp_ident; |
| |
| struct sock *sk; |
| struct amp_ctx *deferred; |
| struct timer_list timer; |
| }; |
| |
| /* AMP work */ |
| struct amp_work_pl_timeout { |
| struct work_struct work; |
| struct amp_ctrl *ctrl; |
| }; |
| struct amp_work_ctx_timeout { |
| struct work_struct work; |
| struct amp_ctx *ctx; |
| }; |
| struct amp_work_data_ready { |
| struct work_struct work; |
| struct sock *sk; |
| int bytes; |
| }; |
| struct amp_work_state_change { |
| struct work_struct work; |
| struct sock *sk; |
| }; |
| struct amp_work_conn_ind { |
| struct work_struct work; |
| struct hci_conn *hcon; |
| struct sk_buff *skb; |
| }; |
| struct amp_work_create_physical { |
| struct work_struct work; |
| struct l2cap_conn *conn; |
| u8 id; |
| struct sock *sk; |
| }; |
| struct amp_work_accept_physical { |
| struct work_struct work; |
| struct l2cap_conn *conn; |
| u8 id; |
| struct sock *sk; |
| }; |
| struct amp_work_cmd_cmplt { |
| struct work_struct work; |
| struct hci_dev *hdev; |
| u16 opcode; |
| struct sk_buff *skb; |
| }; |
| struct amp_work_cmd_status { |
| struct work_struct work; |
| struct hci_dev *hdev; |
| u16 opcode; |
| u8 status; |
| }; |
| struct amp_work_event { |
| struct work_struct work; |
| struct hci_dev *hdev; |
| u8 event; |
| struct sk_buff *skb; |
| }; |
| |
| #endif /* __AMP_H */ |