The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Avish Shah | a408eb7 | 2016-06-22 06:47:20 +0530 | [diff] [blame] | 3 | * Copyright (C) 2003-2016 Broadcom Corporation |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at: |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | * |
| 17 | ******************************************************************************/ |
| 18 | |
| 19 | /****************************************************************************** |
| 20 | * |
| 21 | * This file contains interfaces which are internal to AVCTP. |
| 22 | * |
| 23 | ******************************************************************************/ |
| 24 | #ifndef AVCT_INT_H |
| 25 | #define AVCT_INT_H |
| 26 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 27 | #include "avct_api.h" |
| 28 | #include "avct_defs.h" |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 29 | #include "bt_common.h" |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 30 | #include "l2c_api.h" |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 31 | #include "osi/include/fixed_queue.h" |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 32 | |
| 33 | /***************************************************************************** |
Myles Watson | ee96a3c | 2016-11-23 14:49:54 -0800 | [diff] [blame] | 34 | * constants |
| 35 | ****************************************************************************/ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 36 | |
| 37 | /* lcb state machine events */ |
| 38 | enum { |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 39 | AVCT_LCB_UL_BIND_EVT, |
| 40 | AVCT_LCB_UL_UNBIND_EVT, |
| 41 | AVCT_LCB_UL_MSG_EVT, |
| 42 | AVCT_LCB_INT_CLOSE_EVT, |
| 43 | AVCT_LCB_LL_OPEN_EVT, |
| 44 | AVCT_LCB_LL_CLOSE_EVT, |
| 45 | AVCT_LCB_LL_MSG_EVT, |
| 46 | AVCT_LCB_LL_CONG_EVT |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 47 | }; |
| 48 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 49 | /* "states" used for L2CAP channel */ |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 50 | #define AVCT_CH_IDLE 0 /* No connection */ |
| 51 | #define AVCT_CH_CONN 1 /* Waiting for connection confirm */ |
| 52 | #define AVCT_CH_CFG 2 /* Waiting for configuration complete */ |
| 53 | #define AVCT_CH_OPEN 3 /* Channel opened */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 54 | |
| 55 | /* "no event" indicator used by ccb dealloc */ |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 56 | #define AVCT_NO_EVT 0xFF |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 57 | |
| 58 | /***************************************************************************** |
Myles Watson | ee96a3c | 2016-11-23 14:49:54 -0800 | [diff] [blame] | 59 | * data types |
| 60 | ****************************************************************************/ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 61 | /* sub control block type - common data members for tAVCT_LCB and tAVCT_BCB */ |
| 62 | typedef struct { |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 63 | uint16_t peer_mtu; /* peer l2c mtu */ |
| 64 | uint16_t ch_result; /* L2CAP connection result value */ |
| 65 | uint16_t ch_lcid; /* L2CAP channel LCID */ |
| 66 | uint8_t allocated; /* 0, not allocated. index+1, otherwise. */ |
| 67 | uint8_t state; /* The state machine state */ |
| 68 | uint8_t ch_state; /* L2CAP channel state */ |
| 69 | uint8_t ch_flags; /* L2CAP configuration flags */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 70 | } tAVCT_SCB; |
| 71 | |
| 72 | /* link control block type */ |
| 73 | typedef struct { |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 74 | uint16_t peer_mtu; /* peer l2c mtu */ |
| 75 | uint16_t ch_result; /* L2CAP connection result value */ |
| 76 | uint16_t ch_lcid; /* L2CAP channel LCID */ |
| 77 | uint8_t allocated; /* 0, not allocated. index+1, otherwise. */ |
| 78 | uint8_t state; /* The state machine state */ |
| 79 | uint8_t ch_state; /* L2CAP channel state */ |
| 80 | uint8_t ch_flags; /* L2CAP configuration flags */ |
| 81 | BT_HDR* p_rx_msg; /* Message being reassembled */ |
| 82 | uint16_t conflict_lcid; /* L2CAP channel LCID */ |
| 83 | BD_ADDR peer_addr; /* BD address of peer */ |
| 84 | fixed_queue_t* tx_q; /* Transmit data buffer queue */ |
| 85 | bool cong; /* true, if congested */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 86 | } tAVCT_LCB; |
| 87 | |
| 88 | /* browse control block type */ |
| 89 | typedef struct { |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 90 | uint16_t peer_mtu; /* peer l2c mtu */ |
| 91 | uint16_t ch_result; /* L2CAP connection result value */ |
| 92 | uint16_t ch_lcid; /* L2CAP channel LCID */ |
| 93 | uint8_t allocated; /* 0, not allocated. index+1, otherwise. */ |
| 94 | uint8_t state; /* The state machine state */ |
| 95 | uint8_t ch_state; /* L2CAP channel state */ |
| 96 | uint8_t ch_flags; /* L2CAP configuration flags */ |
| 97 | BT_HDR* p_tx_msg; /* Message to be sent - in case the browsing channel is not |
| 98 | open when MsgReg is called */ |
| 99 | uint8_t ch_close; /* CCB index+1, if CCB initiated channel close */ |
| 100 | BD_ADDR peer_addr; /* BD address of peer */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 101 | } tAVCT_BCB; |
| 102 | |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 103 | #define AVCT_ALOC_LCB 0x01 |
| 104 | #define AVCT_ALOC_BCB 0x02 |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 105 | /* connection control block */ |
| 106 | typedef struct { |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 107 | tAVCT_CC cc; /* parameters from connection creation */ |
| 108 | tAVCT_LCB* p_lcb; /* Associated LCB */ |
| 109 | tAVCT_BCB* p_bcb; /* associated BCB */ |
| 110 | bool ch_close; /* Whether CCB initiated channel close */ |
| 111 | uint8_t allocated; /* Whether LCB/BCB is allocated */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 112 | } tAVCT_CCB; |
| 113 | |
| 114 | /* data type associated with UL_MSG_EVT */ |
| 115 | typedef struct { |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 116 | BT_HDR* p_buf; |
| 117 | tAVCT_CCB* p_ccb; |
| 118 | uint8_t label; |
| 119 | uint8_t cr; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 120 | } tAVCT_UL_MSG; |
| 121 | |
| 122 | /* union associated with lcb state machine events */ |
| 123 | typedef union { |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 124 | tAVCT_UL_MSG ul_msg; |
| 125 | BT_HDR* p_buf; |
| 126 | tAVCT_CCB* p_ccb; |
| 127 | uint16_t result; |
| 128 | bool cong; |
| 129 | uint8_t err_code; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 130 | } tAVCT_LCB_EVT; |
| 131 | |
| 132 | /* Control block for AVCT */ |
| 133 | typedef struct { |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 134 | tAVCT_LCB lcb[AVCT_NUM_LINKS]; /* link control blocks */ |
| 135 | tAVCT_BCB bcb[AVCT_NUM_LINKS]; /* browse control blocks */ |
| 136 | tAVCT_CCB ccb[AVCT_NUM_CONN]; /* connection control blocks */ |
| 137 | uint16_t mtu; /* our L2CAP MTU */ |
| 138 | uint16_t mtu_br; /* our L2CAP MTU for the Browsing channel */ |
| 139 | uint8_t trace_level; /* trace level */ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 140 | } tAVCT_CB; |
| 141 | |
| 142 | /***************************************************************************** |
Myles Watson | ee96a3c | 2016-11-23 14:49:54 -0800 | [diff] [blame] | 143 | * function declarations |
| 144 | ****************************************************************************/ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 145 | |
| 146 | /* LCB function declarations */ |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 147 | extern void avct_lcb_event(tAVCT_LCB* p_lcb, uint8_t event, |
| 148 | tAVCT_LCB_EVT* p_data); |
| 149 | extern void avct_bcb_event(tAVCT_BCB* p_bcb, uint8_t event, |
| 150 | tAVCT_LCB_EVT* p_data); |
| 151 | extern void avct_close_bcb(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 152 | extern tAVCT_LCB* avct_lcb_by_bcb(tAVCT_BCB* p_bcb); |
| 153 | extern tAVCT_BCB* avct_bcb_by_lcb(tAVCT_LCB* p_lcb); |
| 154 | extern uint8_t avct_bcb_get_last_ccb_index(tAVCT_BCB* p_bcb, |
| 155 | tAVCT_CCB* p_ccb_last); |
| 156 | extern tAVCT_BCB* avct_bcb_by_lcid(uint16_t lcid); |
| 157 | extern tAVCT_LCB* avct_lcb_by_bd(BD_ADDR bd_addr); |
| 158 | extern tAVCT_LCB* avct_lcb_alloc(BD_ADDR bd_addr); |
| 159 | extern void avct_lcb_dealloc(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 160 | extern tAVCT_LCB* avct_lcb_by_lcid(uint16_t lcid); |
| 161 | extern tAVCT_CCB* avct_lcb_has_pid(tAVCT_LCB* p_lcb, uint16_t pid); |
| 162 | extern bool avct_lcb_last_ccb(tAVCT_LCB* p_lcb, tAVCT_CCB* p_ccb_last); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 163 | |
| 164 | /* LCB action functions */ |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 165 | extern void avct_lcb_chnl_open(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 166 | extern void avct_lcb_unbind_disc(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 167 | extern void avct_lcb_open_ind(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 168 | extern void avct_lcb_open_fail(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 169 | extern void avct_lcb_close_ind(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 170 | extern void avct_lcb_close_cfm(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 171 | extern void avct_lcb_bind_conn(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 172 | extern void avct_lcb_chk_disc(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 173 | extern void avct_lcb_chnl_disc(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 174 | extern void avct_lcb_bind_fail(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 175 | extern void avct_lcb_cong_ind(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 176 | extern void avct_lcb_discard_msg(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 177 | extern void avct_lcb_send_msg(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 178 | extern void avct_lcb_msg_ind(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
| 179 | extern void avct_lcb_free_msg_ind(tAVCT_LCB* p_lcb, tAVCT_LCB_EVT* p_data); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 180 | |
| 181 | /* BCB action functions */ |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 182 | typedef void (*tAVCT_BCB_ACTION)(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 183 | extern void avct_bcb_chnl_open(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 184 | extern void avct_bcb_unbind_disc(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 185 | extern void avct_bcb_open_ind(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 186 | extern void avct_bcb_open_fail(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 187 | extern void avct_bcb_close_ind(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 188 | extern void avct_bcb_close_cfm(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 189 | extern void avct_bcb_bind_conn(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 190 | extern void avct_bcb_chk_disc(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 191 | extern void avct_bcb_chnl_disc(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 192 | extern void avct_bcb_bind_fail(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 193 | extern void avct_bcb_cong_ind(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 194 | extern void avct_bcb_discard_msg(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 195 | extern void avct_bcb_send_msg(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 196 | extern void avct_bcb_msg_ind(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
| 197 | extern void avct_bcb_free_msg_ind(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 198 | |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 199 | extern void avct_bcb_dealloc(tAVCT_BCB* p_bcb, tAVCT_LCB_EVT* p_data); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 200 | |
| 201 | extern const tAVCT_BCB_ACTION avct_bcb_action[]; |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 202 | extern const uint8_t avct_lcb_pkt_type_len[]; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 203 | extern const tL2CAP_FCR_OPTS avct_l2c_br_fcr_opts_def; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 204 | |
| 205 | /* CCB function declarations */ |
Myles Watson | 911d1ae | 2016-11-28 16:44:40 -0800 | [diff] [blame] | 206 | extern tAVCT_CCB* avct_ccb_alloc(tAVCT_CC* p_cc); |
| 207 | extern void avct_ccb_dealloc(tAVCT_CCB* p_ccb, uint8_t event, uint16_t result, |
| 208 | BD_ADDR bd_addr); |
| 209 | extern uint8_t avct_ccb_to_idx(tAVCT_CCB* p_ccb); |
| 210 | extern tAVCT_CCB* avct_ccb_by_idx(uint8_t idx); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 211 | |
| 212 | /***************************************************************************** |
Myles Watson | ee96a3c | 2016-11-23 14:49:54 -0800 | [diff] [blame] | 213 | * global data |
| 214 | ****************************************************************************/ |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 215 | |
| 216 | /* Main control block */ |
June R. Tate-Gans | 24933b5 | 2014-09-24 15:25:02 -0700 | [diff] [blame] | 217 | extern tAVCT_CB avct_cb; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 218 | |
| 219 | /* L2CAP callback registration structure */ |
| 220 | extern const tL2CAP_APPL_INFO avct_l2c_appl; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 221 | extern const tL2CAP_APPL_INFO avct_l2c_br_appl; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 222 | |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 223 | #endif /* AVCT_INT_H */ |