Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright (C) 2009-2013 Broadcom Corporation |
| 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 | #include "bt_target.h" |
| 21 | #include "bt_utils.h" |
| 22 | #include "btu.h" |
| 23 | #include "gap_int.h" |
| 24 | #include "l2cdefs.h" |
| 25 | #include "l2c_int.h" |
| 26 | #include <string.h> |
Pavlin Radoslavov | 1eb1ea0 | 2015-09-24 22:07:53 -0700 | [diff] [blame] | 27 | #include "osi/include/mutex.h" |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 28 | #if (GAP_CONN_INCLUDED == TRUE) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 29 | #include "btm_int.h" |
| 30 | |
| 31 | /********************************************************************************/ |
| 32 | /* L O C A L F U N C T I O N P R O T O T Y P E S */ |
| 33 | /********************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 34 | static void gap_connect_ind (BD_ADDR bd_addr, uint16_t l2cap_cid, uint16_t psm, uint8_t l2cap_id); |
| 35 | static void gap_connect_cfm (uint16_t l2cap_cid, uint16_t result); |
| 36 | static void gap_config_ind (uint16_t l2cap_cid, tL2CAP_CFG_INFO *p_cfg); |
| 37 | static void gap_config_cfm (uint16_t l2cap_cid, tL2CAP_CFG_INFO *p_cfg); |
| 38 | static void gap_disconnect_ind (uint16_t l2cap_cid, bool ack_needed); |
| 39 | static void gap_data_ind (uint16_t l2cap_cid, BT_HDR *p_msg); |
| 40 | static void gap_congestion_ind (uint16_t lcid, bool is_congested); |
| 41 | static void gap_tx_complete_ind (uint16_t l2cap_cid, uint16_t sdu_sent); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 42 | |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 43 | static tGAP_CCB *gap_find_ccb_by_cid (uint16_t cid); |
| 44 | static tGAP_CCB *gap_find_ccb_by_handle (uint16_t handle); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 45 | static tGAP_CCB *gap_allocate_ccb (void); |
| 46 | static void gap_release_ccb (tGAP_CCB *p_ccb); |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 47 | static void gap_checks_con_flags (tGAP_CCB *p_ccb); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 48 | |
| 49 | /******************************************************************************* |
| 50 | ** |
| 51 | ** Function gap_conn_init |
| 52 | ** |
| 53 | ** Description This function is called to initialize GAP connection management |
| 54 | ** |
| 55 | ** Returns void |
| 56 | ** |
| 57 | *******************************************************************************/ |
| 58 | void gap_conn_init (void) |
| 59 | { |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 60 | #if (AMP_INCLUDED == TRUE) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 61 | gap_cb.conn.reg_info.pAMP_ConnectInd_Cb = gap_connect_ind; |
| 62 | gap_cb.conn.reg_info.pAMP_ConnectCfm_Cb = gap_connect_cfm; |
| 63 | gap_cb.conn.reg_info.pAMP_ConnectPnd_Cb = NULL; |
| 64 | gap_cb.conn.reg_info.pAMP_ConfigInd_Cb = gap_config_ind; |
| 65 | gap_cb.conn.reg_info.pAMP_ConfigCfm_Cb = gap_config_cfm; |
| 66 | gap_cb.conn.reg_info.pAMP_DisconnectInd_Cb = gap_disconnect_ind; |
| 67 | gap_cb.conn.reg_info.pAMP_DisconnectCfm_Cb = NULL; |
| 68 | gap_cb.conn.reg_info.pAMP_QoSViolationInd_Cb = NULL; |
| 69 | gap_cb.conn.reg_info.pAMP_DataInd_Cb = gap_data_ind; |
| 70 | gap_cb.conn.reg_info.pAMP_CongestionStatus_Cb = gap_congestion_ind; |
| 71 | gap_cb.conn.reg_info.pAMP_TxComplete_Cb = NULL; |
| 72 | gap_cb.conn.reg_info.pAMP_MoveInd_Cb = NULL; |
| 73 | gap_cb.conn.reg_info.pAMP_MoveRsp_Cb = NULL; |
| 74 | gap_cb.conn.reg_info.pAMP_MoveCfm_Cb = NULL; //gap_move_cfm |
| 75 | gap_cb.conn.reg_info.pAMP_MoveCfmRsp_Cb = NULL; //gap_move_cfm_rsp |
| 76 | |
| 77 | #else |
| 78 | gap_cb.conn.reg_info.pL2CA_ConnectInd_Cb = gap_connect_ind; |
| 79 | gap_cb.conn.reg_info.pL2CA_ConnectCfm_Cb = gap_connect_cfm; |
| 80 | gap_cb.conn.reg_info.pL2CA_ConnectPnd_Cb = NULL; |
| 81 | gap_cb.conn.reg_info.pL2CA_ConfigInd_Cb = gap_config_ind; |
| 82 | gap_cb.conn.reg_info.pL2CA_ConfigCfm_Cb = gap_config_cfm; |
| 83 | gap_cb.conn.reg_info.pL2CA_DisconnectInd_Cb = gap_disconnect_ind; |
| 84 | gap_cb.conn.reg_info.pL2CA_DisconnectCfm_Cb = NULL; |
| 85 | gap_cb.conn.reg_info.pL2CA_QoSViolationInd_Cb = NULL; |
| 86 | gap_cb.conn.reg_info.pL2CA_DataInd_Cb = gap_data_ind; |
| 87 | gap_cb.conn.reg_info.pL2CA_CongestionStatus_Cb = gap_congestion_ind; |
Srinu Jella | 4e972d8 | 2016-02-16 20:22:16 +0530 | [diff] [blame] | 88 | gap_cb.conn.reg_info.pL2CA_TxComplete_Cb = gap_tx_complete_ind; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 89 | #endif |
| 90 | } |
| 91 | |
| 92 | |
| 93 | /******************************************************************************* |
| 94 | ** |
| 95 | ** Function GAP_ConnOpen |
| 96 | ** |
| 97 | ** Description This function is called to open an L2CAP connection. |
| 98 | ** |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 99 | ** Parameters: is_server - If true, the connection is not created |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 100 | ** but put into a "listen" mode waiting for |
| 101 | ** the remote side to connect. |
| 102 | ** |
| 103 | ** service_id - Unique service ID from |
| 104 | ** BTM_SEC_SERVICE_FIRST_EMPTY (6) |
| 105 | ** to BTM_SEC_MAX_SERVICE_RECORDS (32) |
| 106 | ** |
| 107 | ** p_rem_bda - Pointer to remote BD Address. |
| 108 | ** If a server, and we don't care about the |
| 109 | ** remote BD Address, then NULL should be passed. |
| 110 | ** |
| 111 | ** psm - the PSM used for the connection |
| 112 | ** |
| 113 | ** p_config - Optional pointer to configuration structure. |
| 114 | ** If NULL, the default GAP configuration will |
| 115 | ** be used. |
| 116 | ** |
| 117 | ** security - security flags |
| 118 | ** chan_mode_mask - (GAP_FCR_CHAN_OPT_BASIC, GAP_FCR_CHAN_OPT_ERTM, |
| 119 | ** GAP_FCR_CHAN_OPT_STREAM) |
| 120 | ** |
| 121 | ** p_cb - Pointer to callback function for events. |
| 122 | ** |
| 123 | ** Returns handle of the connection if successful, else GAP_INVALID_HANDLE |
| 124 | ** |
| 125 | *******************************************************************************/ |
Pavlin Radoslavov | b2a292b | 2016-10-14 19:34:48 -0700 | [diff] [blame] | 126 | uint16_t GAP_ConnOpen(const char *p_serv_name, uint8_t service_id, bool is_server, |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 127 | BD_ADDR p_rem_bda, uint16_t psm, tL2CAP_CFG_INFO *p_cfg, |
| 128 | tL2CAP_ERTM_INFO *ertm_info, uint16_t security, uint8_t chan_mode_mask, |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 129 | tGAP_CONN_CALLBACK *p_cb, tBT_TRANSPORT transport) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 130 | { |
| 131 | tGAP_CCB *p_ccb; |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 132 | uint16_t cid; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 133 | |
| 134 | GAP_TRACE_EVENT ("GAP_CONN - Open Request"); |
| 135 | |
| 136 | /* Allocate a new CCB. Return if none available. */ |
| 137 | if ((p_ccb = gap_allocate_ccb()) == NULL) |
| 138 | return (GAP_INVALID_HANDLE); |
| 139 | |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 140 | /* update the transport */ |
| 141 | p_ccb->transport = transport; |
| 142 | |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 143 | /* If caller specified a BD address, save it */ |
| 144 | if (p_rem_bda) |
| 145 | { |
| 146 | /* the bd addr is not BT_BD_ANY, then a bd address was specified */ |
| 147 | if (memcmp (p_rem_bda, BT_BD_ANY, BD_ADDR_LEN)) |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 148 | p_ccb->rem_addr_specified = true; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 149 | |
| 150 | memcpy (&p_ccb->rem_dev_address[0], p_rem_bda, BD_ADDR_LEN); |
| 151 | } |
| 152 | else if (!is_server) |
| 153 | { |
| 154 | /* remore addr is not specified and is not a server -> bad */ |
| 155 | return (GAP_INVALID_HANDLE); |
| 156 | } |
| 157 | |
| 158 | /* A client MUST have specified a bd addr to connect with */ |
| 159 | if (!p_ccb->rem_addr_specified && !is_server) |
| 160 | { |
| 161 | gap_release_ccb (p_ccb); |
| 162 | GAP_TRACE_ERROR ("GAP ERROR: Client must specify a remote BD ADDR to connect to!"); |
| 163 | return (GAP_INVALID_HANDLE); |
| 164 | } |
| 165 | |
| 166 | /* Check if configuration was specified */ |
| 167 | if (p_cfg) |
| 168 | p_ccb->cfg = *p_cfg; |
| 169 | |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 170 | /* Configure L2CAP COC, if transport is LE */ |
| 171 | if (transport == BT_TRANSPORT_LE) |
| 172 | { |
| 173 | p_ccb->local_coc_cfg.credits = L2CAP_LE_DEFAULT_CREDIT; |
| 174 | p_ccb->local_coc_cfg.mtu = p_cfg->mtu; |
| 175 | p_ccb->local_coc_cfg.mps = L2CAP_LE_DEFAULT_MPS; |
| 176 | } |
| 177 | |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 178 | p_ccb->p_callback = p_cb; |
| 179 | |
| 180 | /* If originator, use a dynamic PSM */ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 181 | #if (AMP_INCLUDED == TRUE) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 182 | if (!is_server) |
| 183 | gap_cb.conn.reg_info.pAMP_ConnectInd_Cb = NULL; |
| 184 | else |
| 185 | gap_cb.conn.reg_info.pAMP_ConnectInd_Cb = gap_connect_ind; |
| 186 | #else |
| 187 | if (!is_server) |
| 188 | gap_cb.conn.reg_info.pL2CA_ConnectInd_Cb = NULL; |
| 189 | else |
| 190 | gap_cb.conn.reg_info.pL2CA_ConnectInd_Cb = gap_connect_ind; |
| 191 | #endif |
| 192 | |
| 193 | /* Register the PSM with L2CAP */ |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 194 | if (transport == BT_TRANSPORT_BR_EDR) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 195 | { |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 196 | p_ccb->psm = L2CA_REGISTER (psm, &gap_cb.conn.reg_info, |
| 197 | AMP_AUTOSWITCH_ALLOWED|AMP_USE_AMP_IF_POSSIBLE); |
| 198 | if (p_ccb->psm == 0) |
| 199 | { |
| 200 | GAP_TRACE_ERROR ("%s: Failure registering PSM 0x%04x", __func__, psm); |
| 201 | gap_release_ccb (p_ccb); |
| 202 | return (GAP_INVALID_HANDLE); |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | if (transport == BT_TRANSPORT_LE) |
| 207 | { |
| 208 | p_ccb->psm = L2CA_REGISTER_COC (psm, &gap_cb.conn.reg_info, |
| 209 | AMP_AUTOSWITCH_ALLOWED|AMP_USE_AMP_IF_POSSIBLE); |
| 210 | if (p_ccb->psm == 0) |
| 211 | { |
| 212 | GAP_TRACE_ERROR ("%s: Failure registering PSM 0x%04x", __func__, psm); |
| 213 | gap_release_ccb (p_ccb); |
| 214 | return (GAP_INVALID_HANDLE); |
| 215 | } |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 216 | } |
| 217 | |
| 218 | /* Register with Security Manager for the specific security level */ |
| 219 | p_ccb->service_id = service_id; |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 220 | if (!BTM_SetSecurityLevel ((uint8_t)!is_server, p_serv_name, |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 221 | p_ccb->service_id, security, p_ccb->psm, 0, 0)) |
| 222 | { |
| 223 | GAP_TRACE_ERROR ("GAP_CONN - Security Error"); |
| 224 | gap_release_ccb (p_ccb); |
| 225 | return (GAP_INVALID_HANDLE); |
| 226 | } |
| 227 | |
| 228 | /* Fill in eL2CAP parameter data */ |
| 229 | if( p_ccb->cfg.fcr_present ) |
| 230 | { |
| 231 | if(ertm_info == NULL) { |
| 232 | p_ccb->ertm_info.preferred_mode = p_ccb->cfg.fcr.mode; |
Pavlin Radoslavov | 1d5b859 | 2015-09-23 10:08:20 -0700 | [diff] [blame] | 233 | p_ccb->ertm_info.user_rx_buf_size = GAP_DATA_BUF_SIZE; |
| 234 | p_ccb->ertm_info.user_tx_buf_size = GAP_DATA_BUF_SIZE; |
| 235 | p_ccb->ertm_info.fcr_rx_buf_size = L2CAP_INVALID_ERM_BUF_SIZE; |
| 236 | p_ccb->ertm_info.fcr_tx_buf_size = L2CAP_INVALID_ERM_BUF_SIZE; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 237 | } else { |
| 238 | p_ccb->ertm_info = *ertm_info; |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | /* optional FCR channel modes */ |
| 243 | if(ertm_info != NULL) { |
| 244 | p_ccb->ertm_info.allowed_modes = |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 245 | (chan_mode_mask) ? chan_mode_mask : (uint8_t)L2CAP_FCR_CHAN_OPT_BASIC; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 246 | } |
| 247 | |
| 248 | if (is_server) |
| 249 | { |
| 250 | p_ccb->con_flags |= GAP_CCB_FLAGS_SEC_DONE; /* assume btm/l2cap would handle it */ |
| 251 | p_ccb->con_state = GAP_CCB_STATE_LISTENING; |
| 252 | return (p_ccb->gap_handle); |
| 253 | } |
| 254 | else |
| 255 | { |
| 256 | /* We are the originator of this connection */ |
| 257 | p_ccb->con_flags = GAP_CCB_FLAGS_IS_ORIG; |
| 258 | |
| 259 | /* Transition to the next appropriate state, waiting for connection confirm. */ |
| 260 | p_ccb->con_state = GAP_CCB_STATE_CONN_SETUP; |
| 261 | |
| 262 | /* mark security done flag, when security is not required */ |
| 263 | if ((security & (BTM_SEC_OUT_AUTHORIZE | BTM_SEC_OUT_AUTHENTICATE | BTM_SEC_OUT_ENCRYPT) ) == 0) |
| 264 | p_ccb->con_flags |= GAP_CCB_FLAGS_SEC_DONE; |
| 265 | |
| 266 | /* Check if L2CAP started the connection process */ |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 267 | if (p_rem_bda && (transport == BT_TRANSPORT_BR_EDR)) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 268 | { |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 269 | cid = L2CA_CONNECT_REQ (p_ccb->psm, p_rem_bda, &p_ccb->ertm_info); |
| 270 | if (cid != 0) |
| 271 | { |
| 272 | p_ccb->connection_id = cid; |
| 273 | return (p_ccb->gap_handle); |
| 274 | } |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 275 | } |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 276 | |
| 277 | if (p_rem_bda && (transport == BT_TRANSPORT_LE)) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 278 | { |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 279 | cid = L2CA_CONNECT_COC_REQ (p_ccb->psm, p_rem_bda, &p_ccb->local_coc_cfg); |
| 280 | if (cid != 0) |
| 281 | { |
| 282 | p_ccb->connection_id = cid; |
| 283 | return (p_ccb->gap_handle); |
| 284 | } |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 285 | } |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 286 | |
| 287 | gap_release_ccb (p_ccb); |
| 288 | return (GAP_INVALID_HANDLE); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 289 | } |
| 290 | } |
| 291 | |
| 292 | |
| 293 | /******************************************************************************* |
| 294 | ** |
| 295 | ** Function GAP_ConnClose |
| 296 | ** |
| 297 | ** Description This function is called to close a connection. |
| 298 | ** |
| 299 | ** Parameters: handle - Handle of the connection returned by GAP_ConnOpen |
| 300 | ** |
| 301 | ** Returns BT_PASS - closed OK |
| 302 | ** GAP_ERR_BAD_HANDLE - invalid handle |
| 303 | ** |
| 304 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 305 | uint16_t GAP_ConnClose (uint16_t gap_handle) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 306 | { |
| 307 | tGAP_CCB *p_ccb = gap_find_ccb_by_handle (gap_handle); |
| 308 | |
| 309 | GAP_TRACE_EVENT ("GAP_CONN - close handle: 0x%x", gap_handle); |
| 310 | |
| 311 | if (p_ccb) |
| 312 | { |
| 313 | /* Check if we have a connection ID */ |
| 314 | if (p_ccb->con_state != GAP_CCB_STATE_LISTENING) |
| 315 | L2CA_DISCONNECT_REQ (p_ccb->connection_id); |
| 316 | |
| 317 | gap_release_ccb (p_ccb); |
| 318 | |
| 319 | return (BT_PASS); |
| 320 | } |
| 321 | |
| 322 | return (GAP_ERR_BAD_HANDLE); |
| 323 | } |
| 324 | |
| 325 | |
| 326 | |
| 327 | /******************************************************************************* |
| 328 | ** |
| 329 | ** Function GAP_ConnReadData |
| 330 | ** |
| 331 | ** Description Normally not GKI aware application will call this function |
| 332 | ** after receiving GAP_EVT_RXDATA event. |
| 333 | ** |
| 334 | ** Parameters: handle - Handle of the connection returned in the Open |
| 335 | ** p_data - Data area |
| 336 | ** max_len - Byte count requested |
| 337 | ** p_len - Byte count received |
| 338 | ** |
| 339 | ** Returns BT_PASS - data read |
| 340 | ** GAP_ERR_BAD_HANDLE - invalid handle |
| 341 | ** GAP_NO_DATA_AVAIL - no data available |
| 342 | ** |
| 343 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 344 | uint16_t GAP_ConnReadData (uint16_t gap_handle, uint8_t *p_data, uint16_t max_len, uint16_t *p_len) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 345 | { |
| 346 | tGAP_CCB *p_ccb = gap_find_ccb_by_handle (gap_handle); |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 347 | uint16_t copy_len; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 348 | |
| 349 | if (!p_ccb) |
| 350 | return (GAP_ERR_BAD_HANDLE); |
| 351 | |
| 352 | *p_len = 0; |
| 353 | |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame] | 354 | if (fixed_queue_is_empty(p_ccb->rx_queue)) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 355 | return (GAP_NO_DATA_AVAIL); |
| 356 | |
Pavlin Radoslavov | 1eb1ea0 | 2015-09-24 22:07:53 -0700 | [diff] [blame] | 357 | mutex_global_lock(); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 358 | |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame] | 359 | while (max_len) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 360 | { |
Pavlin Radoslavov | b2a292b | 2016-10-14 19:34:48 -0700 | [diff] [blame] | 361 | BT_HDR *p_buf = |
| 362 | static_cast<BT_HDR *>(fixed_queue_try_peek_first(p_ccb->rx_queue)); |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame] | 363 | if (p_buf == NULL) |
| 364 | break; |
| 365 | |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 366 | copy_len = (p_buf->len > max_len)?max_len:p_buf->len; |
| 367 | max_len -= copy_len; |
| 368 | *p_len += copy_len; |
| 369 | if (p_data) |
| 370 | { |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 371 | memcpy (p_data, (uint8_t *)(p_buf + 1) + p_buf->offset, copy_len); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 372 | p_data += copy_len; |
| 373 | } |
| 374 | |
| 375 | if (p_buf->len > copy_len) |
| 376 | { |
| 377 | p_buf->offset += copy_len; |
| 378 | p_buf->len -= copy_len; |
| 379 | break; |
| 380 | } |
Pavlin Radoslavov | cceb430 | 2016-02-05 13:54:43 -0800 | [diff] [blame] | 381 | osi_free(fixed_queue_try_dequeue(p_ccb->rx_queue)); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 382 | } |
| 383 | |
| 384 | p_ccb->rx_queue_size -= *p_len; |
| 385 | |
Pavlin Radoslavov | 1eb1ea0 | 2015-09-24 22:07:53 -0700 | [diff] [blame] | 386 | mutex_global_unlock(); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 387 | |
| 388 | GAP_TRACE_EVENT ("GAP_ConnReadData - rx_queue_size left=%d, *p_len=%d", |
| 389 | p_ccb->rx_queue_size, *p_len); |
| 390 | |
| 391 | return (BT_PASS); |
| 392 | } |
| 393 | |
| 394 | /******************************************************************************* |
| 395 | ** |
| 396 | ** Function GAP_GetRxQueueCnt |
| 397 | ** |
| 398 | ** Description This function return number of bytes on the rx queue. |
| 399 | ** |
| 400 | ** Parameters: handle - Handle returned in the GAP_ConnOpen |
| 401 | ** p_rx_queue_count - Pointer to return queue count in. |
| 402 | ** |
| 403 | ** |
| 404 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 405 | int GAP_GetRxQueueCnt (uint16_t handle, uint32_t *p_rx_queue_count) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 406 | { |
| 407 | tGAP_CCB *p_ccb; |
| 408 | int rc = BT_PASS; |
| 409 | |
| 410 | /* Check that handle is valid */ |
| 411 | if (handle < GAP_MAX_CONNECTIONS) |
| 412 | { |
| 413 | p_ccb = &gap_cb.conn.ccb_pool[handle]; |
| 414 | |
| 415 | if (p_ccb->con_state == GAP_CCB_STATE_CONNECTED) |
| 416 | { |
| 417 | *p_rx_queue_count = p_ccb->rx_queue_size; |
| 418 | } |
| 419 | else |
| 420 | rc = GAP_INVALID_HANDLE; |
| 421 | } |
| 422 | else |
| 423 | rc = GAP_INVALID_HANDLE; |
| 424 | |
| 425 | GAP_TRACE_EVENT ("GAP_GetRxQueueCnt - rc = 0x%04x, rx_queue_count=%d", |
| 426 | rc , *p_rx_queue_count); |
| 427 | |
| 428 | return (rc); |
| 429 | } |
| 430 | |
| 431 | /******************************************************************************* |
| 432 | ** |
| 433 | ** Function GAP_ConnBTRead |
| 434 | ** |
| 435 | ** Description Bluetooth aware applications will call this function after receiving |
| 436 | ** GAP_EVT_RXDATA event. |
| 437 | ** |
| 438 | ** Parameters: handle - Handle of the connection returned in the Open |
| 439 | ** pp_buf - pointer to address of buffer with data, |
| 440 | ** |
| 441 | ** Returns BT_PASS - data read |
| 442 | ** GAP_ERR_BAD_HANDLE - invalid handle |
| 443 | ** GAP_NO_DATA_AVAIL - no data available |
| 444 | ** |
| 445 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 446 | uint16_t GAP_ConnBTRead (uint16_t gap_handle, BT_HDR **pp_buf) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 447 | { |
| 448 | tGAP_CCB *p_ccb = gap_find_ccb_by_handle (gap_handle); |
| 449 | BT_HDR *p_buf; |
| 450 | |
| 451 | if (!p_ccb) |
| 452 | return (GAP_ERR_BAD_HANDLE); |
| 453 | |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame] | 454 | p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->rx_queue); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 455 | |
| 456 | if (p_buf) |
| 457 | { |
| 458 | *pp_buf = p_buf; |
| 459 | |
| 460 | p_ccb->rx_queue_size -= p_buf->len; |
| 461 | return (BT_PASS); |
| 462 | } |
| 463 | else |
| 464 | { |
| 465 | *pp_buf = NULL; |
| 466 | return (GAP_NO_DATA_AVAIL); |
| 467 | } |
| 468 | } |
| 469 | |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 470 | /******************************************************************************* |
| 471 | ** |
| 472 | ** Function GAP_ConnWriteData |
| 473 | ** |
| 474 | ** Description Normally not GKI aware application will call this function |
| 475 | ** to send data to the connection. |
| 476 | ** |
| 477 | ** Parameters: handle - Handle of the connection returned in the Open |
| 478 | ** p_data - Data area |
| 479 | ** max_len - Byte count requested |
| 480 | ** p_len - Byte count received |
| 481 | ** |
| 482 | ** Returns BT_PASS - data read |
| 483 | ** GAP_ERR_BAD_HANDLE - invalid handle |
| 484 | ** GAP_ERR_BAD_STATE - connection not established |
| 485 | ** GAP_CONGESTION - system is congested |
| 486 | ** |
| 487 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 488 | uint16_t GAP_ConnWriteData (uint16_t gap_handle, uint8_t *p_data, uint16_t max_len, uint16_t *p_len) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 489 | { |
| 490 | tGAP_CCB *p_ccb = gap_find_ccb_by_handle (gap_handle); |
| 491 | BT_HDR *p_buf; |
| 492 | |
| 493 | *p_len = 0; |
| 494 | |
| 495 | if (!p_ccb) |
| 496 | return (GAP_ERR_BAD_HANDLE); |
| 497 | |
| 498 | if (p_ccb->con_state != GAP_CCB_STATE_CONNECTED) |
| 499 | return (GAP_ERR_BAD_STATE); |
| 500 | |
| 501 | while (max_len) |
| 502 | { |
| 503 | if (p_ccb->cfg.fcr.mode == L2CAP_FCR_ERTM_MODE) |
Pavlin Radoslavov | cceb430 | 2016-02-05 13:54:43 -0800 | [diff] [blame] | 504 | p_buf = (BT_HDR *)osi_malloc(L2CAP_FCR_ERTM_BUF_SIZE); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 505 | else |
Pavlin Radoslavov | cceb430 | 2016-02-05 13:54:43 -0800 | [diff] [blame] | 506 | p_buf = (BT_HDR *)osi_malloc(GAP_DATA_BUF_SIZE); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 507 | |
| 508 | p_buf->offset = L2CAP_MIN_OFFSET; |
| 509 | p_buf->len = (p_ccb->rem_mtu_size < max_len) ? p_ccb->rem_mtu_size : max_len; |
| 510 | p_buf->event = BT_EVT_TO_BTU_SP_DATA; |
| 511 | |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 512 | memcpy ((uint8_t *)(p_buf + 1) + p_buf->offset, p_data, p_buf->len); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 513 | |
| 514 | *p_len += p_buf->len; |
| 515 | max_len -= p_buf->len; |
| 516 | p_data += p_buf->len; |
| 517 | |
| 518 | GAP_TRACE_EVENT ("GAP_WriteData %d bytes", p_buf->len); |
| 519 | |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame] | 520 | fixed_queue_enqueue(p_ccb->tx_queue, p_buf); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 521 | } |
| 522 | |
| 523 | if (p_ccb->is_congested) |
| 524 | { |
| 525 | return (BT_PASS); |
| 526 | } |
| 527 | |
| 528 | /* Send the buffer through L2CAP */ |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame] | 529 | while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->tx_queue)) != NULL) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 530 | { |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 531 | uint8_t status = L2CA_DATA_WRITE (p_ccb->connection_id, p_buf); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 532 | |
| 533 | if (status == L2CAP_DW_CONGESTED) |
| 534 | { |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 535 | p_ccb->is_congested = true; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 536 | break; |
| 537 | } |
| 538 | else if (status != L2CAP_DW_SUCCESS) |
| 539 | return (GAP_ERR_BAD_STATE); |
| 540 | } |
Andre Eisenbach | a1a32078 | 2016-10-18 11:58:57 -0700 | [diff] [blame] | 541 | |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 542 | return (BT_PASS); |
| 543 | } |
| 544 | |
| 545 | |
| 546 | /******************************************************************************* |
| 547 | ** |
| 548 | ** Function GAP_ConnReconfig |
| 549 | ** |
| 550 | ** Description Applications can call this function to reconfigure the connection. |
| 551 | ** |
| 552 | ** Parameters: handle - Handle of the connection |
| 553 | ** p_cfg - Pointer to new configuration |
| 554 | ** |
| 555 | ** Returns BT_PASS - config process started |
| 556 | ** GAP_ERR_BAD_HANDLE - invalid handle |
| 557 | ** |
| 558 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 559 | uint16_t GAP_ConnReconfig (uint16_t gap_handle, tL2CAP_CFG_INFO *p_cfg) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 560 | { |
| 561 | tGAP_CCB *p_ccb = gap_find_ccb_by_handle (gap_handle); |
| 562 | |
| 563 | if (!p_ccb) |
| 564 | return (GAP_ERR_BAD_HANDLE); |
| 565 | |
| 566 | p_ccb->cfg = *p_cfg; |
| 567 | |
| 568 | if (p_ccb->con_state == GAP_CCB_STATE_CONNECTED) |
| 569 | L2CA_CONFIG_REQ (p_ccb->connection_id, p_cfg); |
| 570 | |
| 571 | return (BT_PASS); |
| 572 | } |
| 573 | |
| 574 | |
| 575 | |
| 576 | /******************************************************************************* |
| 577 | ** |
| 578 | ** Function GAP_ConnSetIdleTimeout |
| 579 | ** |
| 580 | ** Description Higher layers call this function to set the idle timeout for |
| 581 | ** a connection, or for all future connections. The "idle timeout" |
| 582 | ** is the amount of time that a connection can remain up with |
| 583 | ** no L2CAP channels on it. A timeout of zero means that the |
| 584 | ** connection will be torn down immediately when the last channel |
| 585 | ** is removed. A timeout of 0xFFFF means no timeout. Values are |
| 586 | ** in seconds. |
| 587 | ** |
| 588 | ** Parameters: handle - Handle of the connection |
| 589 | ** timeout - in secs |
| 590 | ** 0 = immediate disconnect when last channel is removed |
| 591 | ** 0xFFFF = no idle timeout |
| 592 | ** |
| 593 | ** Returns BT_PASS - config process started |
| 594 | ** GAP_ERR_BAD_HANDLE - invalid handle |
| 595 | ** |
| 596 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 597 | uint16_t GAP_ConnSetIdleTimeout (uint16_t gap_handle, uint16_t timeout) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 598 | { |
| 599 | tGAP_CCB *p_ccb; |
| 600 | |
| 601 | if ((p_ccb = gap_find_ccb_by_handle (gap_handle)) == NULL) |
| 602 | return (GAP_ERR_BAD_HANDLE); |
| 603 | |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 604 | if (L2CA_SetIdleTimeout (p_ccb->connection_id, timeout, false)) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 605 | return (BT_PASS); |
| 606 | else |
| 607 | return (GAP_ERR_BAD_HANDLE); |
| 608 | } |
| 609 | |
| 610 | |
| 611 | |
| 612 | /******************************************************************************* |
| 613 | ** |
| 614 | ** Function GAP_ConnGetRemoteAddr |
| 615 | ** |
| 616 | ** Description This function is called to get the remote BD address |
| 617 | ** of a connection. |
| 618 | ** |
| 619 | ** Parameters: handle - Handle of the connection returned by GAP_ConnOpen |
| 620 | ** |
| 621 | ** Returns BT_PASS - closed OK |
| 622 | ** GAP_ERR_BAD_HANDLE - invalid handle |
| 623 | ** |
| 624 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 625 | uint8_t *GAP_ConnGetRemoteAddr (uint16_t gap_handle) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 626 | { |
| 627 | tGAP_CCB *p_ccb = gap_find_ccb_by_handle (gap_handle); |
| 628 | |
| 629 | GAP_TRACE_EVENT ("GAP_ConnGetRemoteAddr gap_handle = %d", gap_handle); |
| 630 | |
| 631 | if ((p_ccb) && (p_ccb->con_state > GAP_CCB_STATE_LISTENING)) |
| 632 | { |
| 633 | GAP_TRACE_EVENT("GAP_ConnGetRemoteAddr bda :0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n", \ |
| 634 | p_ccb->rem_dev_address[0],p_ccb->rem_dev_address[1],p_ccb->rem_dev_address[2], |
| 635 | p_ccb->rem_dev_address[3],p_ccb->rem_dev_address[4],p_ccb->rem_dev_address[5]); |
| 636 | return (p_ccb->rem_dev_address); |
| 637 | } |
| 638 | else |
| 639 | { |
| 640 | GAP_TRACE_EVENT ("GAP_ConnGetRemoteAddr return Error "); |
| 641 | return (NULL); |
| 642 | } |
| 643 | } |
| 644 | |
| 645 | |
| 646 | /******************************************************************************* |
| 647 | ** |
| 648 | ** Function GAP_ConnGetRemMtuSize |
| 649 | ** |
| 650 | ** Description Returns the remote device's MTU size |
| 651 | ** |
| 652 | ** Parameters: handle - Handle of the connection |
| 653 | ** |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 654 | ** Returns uint16_t - maximum size buffer that can be transmitted to the peer |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 655 | ** |
| 656 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 657 | uint16_t GAP_ConnGetRemMtuSize (uint16_t gap_handle) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 658 | { |
| 659 | tGAP_CCB *p_ccb; |
| 660 | |
| 661 | if ((p_ccb = gap_find_ccb_by_handle (gap_handle)) == NULL) |
| 662 | return (0); |
| 663 | |
| 664 | return (p_ccb->rem_mtu_size); |
| 665 | } |
| 666 | |
| 667 | /******************************************************************************* |
| 668 | ** |
| 669 | ** Function GAP_ConnGetL2CAPCid |
| 670 | ** |
| 671 | ** Description Returns the L2CAP channel id |
| 672 | ** |
| 673 | ** Parameters: handle - Handle of the connection |
| 674 | ** |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 675 | ** Returns uint16_t - The L2CAP channel id |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 676 | ** 0, if error |
| 677 | ** |
| 678 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 679 | uint16_t GAP_ConnGetL2CAPCid (uint16_t gap_handle) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 680 | { |
| 681 | tGAP_CCB *p_ccb; |
| 682 | |
| 683 | if ((p_ccb = gap_find_ccb_by_handle (gap_handle)) == NULL) |
| 684 | return (0); |
| 685 | |
| 686 | return (p_ccb->connection_id); |
| 687 | } |
| 688 | |
Srinu Jella | 4e972d8 | 2016-02-16 20:22:16 +0530 | [diff] [blame] | 689 | /******************************************************************************* |
| 690 | ** |
| 691 | ** Function gap_tx_connect_ind |
| 692 | ** |
| 693 | ** Description Sends out GAP_EVT_TX_EMPTY when transmission has been |
| 694 | ** completed. |
| 695 | ** |
| 696 | ** Returns void |
| 697 | ** |
| 698 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 699 | void gap_tx_complete_ind (uint16_t l2cap_cid, uint16_t sdu_sent) |
Srinu Jella | 4e972d8 | 2016-02-16 20:22:16 +0530 | [diff] [blame] | 700 | { |
| 701 | tGAP_CCB *p_ccb = gap_find_ccb_by_cid (l2cap_cid); |
| 702 | if (p_ccb == NULL) |
| 703 | return; |
| 704 | |
| 705 | if ((p_ccb->con_state == GAP_CCB_STATE_CONNECTED) && (sdu_sent == 0xFFFF)) |
| 706 | { |
| 707 | GAP_TRACE_EVENT("%s: GAP_EVT_TX_EMPTY", __func__); |
| 708 | p_ccb->p_callback (p_ccb->gap_handle, GAP_EVT_TX_EMPTY); |
| 709 | } |
| 710 | } |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 711 | |
| 712 | /******************************************************************************* |
| 713 | ** |
| 714 | ** Function gap_connect_ind |
| 715 | ** |
| 716 | ** Description This function handles an inbound connection indication |
| 717 | ** from L2CAP. This is the case where we are acting as a |
| 718 | ** server. |
| 719 | ** |
| 720 | ** Returns void |
| 721 | ** |
| 722 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 723 | static void gap_connect_ind (BD_ADDR bd_addr, uint16_t l2cap_cid, uint16_t psm, uint8_t l2cap_id) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 724 | { |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 725 | uint16_t xx; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 726 | tGAP_CCB *p_ccb; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 727 | |
| 728 | /* See if we have a CCB listening for the connection */ |
| 729 | for (xx = 0, p_ccb = gap_cb.conn.ccb_pool; xx < GAP_MAX_CONNECTIONS; xx++, p_ccb++) |
| 730 | { |
| 731 | if ((p_ccb->con_state == GAP_CCB_STATE_LISTENING) |
| 732 | && (p_ccb->psm == psm) |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 733 | && ((p_ccb->rem_addr_specified == false) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 734 | || (!memcmp (bd_addr, p_ccb->rem_dev_address, BD_ADDR_LEN)))) |
| 735 | break; |
| 736 | } |
| 737 | |
| 738 | if (xx == GAP_MAX_CONNECTIONS) |
| 739 | { |
| 740 | GAP_TRACE_WARNING("*******"); |
| 741 | GAP_TRACE_WARNING("WARNING: GAP Conn Indication for Unexpected Bd Addr...Disconnecting"); |
| 742 | GAP_TRACE_WARNING("*******"); |
| 743 | |
| 744 | /* Disconnect because it is an unexpected connection */ |
| 745 | L2CA_DISCONNECT_REQ (l2cap_cid); |
| 746 | return; |
| 747 | } |
| 748 | |
| 749 | /* Transition to the next appropriate state, waiting for config setup. */ |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 750 | if (p_ccb->transport == BT_TRANSPORT_BR_EDR) |
| 751 | p_ccb->con_state = GAP_CCB_STATE_CFG_SETUP; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 752 | |
| 753 | /* Save the BD Address and Channel ID. */ |
| 754 | memcpy (&p_ccb->rem_dev_address[0], bd_addr, BD_ADDR_LEN); |
| 755 | p_ccb->connection_id = l2cap_cid; |
| 756 | |
| 757 | /* Send response to the L2CAP layer. */ |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 758 | if (p_ccb->transport == BT_TRANSPORT_BR_EDR) |
| 759 | L2CA_CONNECT_RSP (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_OK, L2CAP_CONN_OK, &p_ccb->ertm_info); |
| 760 | |
| 761 | if (p_ccb->transport == BT_TRANSPORT_LE) |
| 762 | { |
| 763 | L2CA_CONNECT_COC_RSP (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_OK, L2CAP_CONN_OK, &p_ccb->local_coc_cfg); |
| 764 | |
| 765 | /* get the remote coc configuration */ |
| 766 | L2CA_GET_PEER_COC_CONFIG(l2cap_cid, &p_ccb->peer_coc_cfg); |
| 767 | p_ccb->rem_mtu_size = p_ccb->peer_coc_cfg.mtu; |
| 768 | |
| 769 | /* configuration is not required for LE COC */ |
| 770 | p_ccb->con_flags |= GAP_CCB_FLAGS_HIS_CFG_DONE; |
| 771 | p_ccb->con_flags |= GAP_CCB_FLAGS_MY_CFG_DONE; |
| 772 | gap_checks_con_flags (p_ccb); |
| 773 | } |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 774 | |
| 775 | GAP_TRACE_EVENT("GAP_CONN - Rcvd L2CAP conn ind, CID: 0x%x", p_ccb->connection_id); |
| 776 | |
| 777 | /* Send a Configuration Request. */ |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 778 | if (p_ccb->transport == BT_TRANSPORT_BR_EDR) |
| 779 | L2CA_CONFIG_REQ (l2cap_cid, &p_ccb->cfg); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 780 | } |
| 781 | |
| 782 | /******************************************************************************* |
| 783 | ** |
| 784 | ** Function gap_checks_con_flags |
| 785 | ** |
| 786 | ** Description This function processes the L2CAP configuration indication |
| 787 | ** event. |
| 788 | ** |
| 789 | ** Returns void |
| 790 | ** |
| 791 | *******************************************************************************/ |
| 792 | static void gap_checks_con_flags (tGAP_CCB *p_ccb) |
| 793 | { |
| 794 | GAP_TRACE_EVENT ("gap_checks_con_flags conn_flags:0x%x, ", p_ccb->con_flags); |
| 795 | /* if all the required con_flags are set, report the OPEN event now */ |
| 796 | if ((p_ccb->con_flags & GAP_CCB_FLAGS_CONN_DONE) == GAP_CCB_FLAGS_CONN_DONE) |
| 797 | { |
| 798 | p_ccb->con_state = GAP_CCB_STATE_CONNECTED; |
| 799 | |
| 800 | p_ccb->p_callback (p_ccb->gap_handle, GAP_EVT_CONN_OPENED); |
| 801 | } |
| 802 | } |
| 803 | |
| 804 | /******************************************************************************* |
| 805 | ** |
| 806 | ** Function gap_sec_check_complete |
| 807 | ** |
| 808 | ** Description The function called when Security Manager finishes |
| 809 | ** verification of the service side connection |
| 810 | ** |
| 811 | ** Returns void |
| 812 | ** |
| 813 | *******************************************************************************/ |
Myles Watson | d35a648 | 2016-10-27 08:52:16 -0700 | [diff] [blame^] | 814 | static void gap_sec_check_complete (UNUSED_ATTR BD_ADDR bd_addr, UNUSED_ATTR tBT_TRANSPORT transport, void *p_ref_data, |
| 815 | uint8_t res) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 816 | { |
| 817 | tGAP_CCB *p_ccb = (tGAP_CCB *)p_ref_data; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 818 | |
| 819 | GAP_TRACE_EVENT ("gap_sec_check_complete conn_state:%d, conn_flags:0x%x, status:%d", |
| 820 | p_ccb->con_state, p_ccb->con_flags, res); |
| 821 | if (p_ccb->con_state == GAP_CCB_STATE_IDLE) |
| 822 | return; |
| 823 | |
| 824 | if (res == BTM_SUCCESS) |
| 825 | { |
| 826 | p_ccb->con_flags |= GAP_CCB_FLAGS_SEC_DONE; |
| 827 | gap_checks_con_flags (p_ccb); |
| 828 | } |
| 829 | else |
| 830 | { |
| 831 | /* security failed - disconnect the channel */ |
| 832 | L2CA_DISCONNECT_REQ (p_ccb->connection_id); |
| 833 | } |
| 834 | } |
| 835 | |
| 836 | /******************************************************************************* |
| 837 | ** |
| 838 | ** Function gap_connect_cfm |
| 839 | ** |
| 840 | ** Description This function handles the connect confirm events |
| 841 | ** from L2CAP. This is the case when we are acting as a |
| 842 | ** client and have sent a connect request. |
| 843 | ** |
| 844 | ** Returns void |
| 845 | ** |
| 846 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 847 | static void gap_connect_cfm (uint16_t l2cap_cid, uint16_t result) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 848 | { |
| 849 | tGAP_CCB *p_ccb; |
| 850 | |
| 851 | /* Find CCB based on CID */ |
| 852 | if ((p_ccb = gap_find_ccb_by_cid (l2cap_cid)) == NULL) |
| 853 | return; |
| 854 | |
| 855 | /* initiate security process, if needed */ |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 856 | if ( (p_ccb->con_flags & GAP_CCB_FLAGS_SEC_DONE) == 0 && p_ccb->transport != BT_TRANSPORT_LE) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 857 | { |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 858 | btm_sec_mx_access_request (p_ccb->rem_dev_address, p_ccb->psm, true, |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 859 | 0, 0, &gap_sec_check_complete, p_ccb); |
| 860 | } |
| 861 | |
| 862 | /* If the connection response contains success status, then */ |
| 863 | /* Transition to the next state and startup the timer. */ |
| 864 | if ((result == L2CAP_CONN_OK) && (p_ccb->con_state == GAP_CCB_STATE_CONN_SETUP)) |
| 865 | { |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 866 | if (p_ccb->transport == BT_TRANSPORT_BR_EDR) |
| 867 | { |
| 868 | p_ccb->con_state = GAP_CCB_STATE_CFG_SETUP; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 869 | |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 870 | /* Send a Configuration Request. */ |
| 871 | L2CA_CONFIG_REQ (l2cap_cid, &p_ccb->cfg); |
| 872 | } |
| 873 | |
| 874 | if (p_ccb->transport == BT_TRANSPORT_LE) |
| 875 | { |
| 876 | /* get the remote coc configuration */ |
| 877 | L2CA_GET_PEER_COC_CONFIG(l2cap_cid, &p_ccb->peer_coc_cfg); |
| 878 | p_ccb->rem_mtu_size = p_ccb->peer_coc_cfg.mtu; |
| 879 | |
| 880 | /* configuration is not required for LE COC */ |
| 881 | p_ccb->con_flags |= GAP_CCB_FLAGS_HIS_CFG_DONE; |
| 882 | p_ccb->con_flags |= GAP_CCB_FLAGS_MY_CFG_DONE; |
| 883 | p_ccb->con_flags |= GAP_CCB_FLAGS_SEC_DONE; |
| 884 | gap_checks_con_flags (p_ccb); |
| 885 | } |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 886 | } |
| 887 | else |
| 888 | { |
| 889 | /* Tell the user if he has a callback */ |
| 890 | if (p_ccb->p_callback) |
| 891 | (*p_ccb->p_callback) (p_ccb->gap_handle, GAP_EVT_CONN_CLOSED); |
| 892 | |
| 893 | gap_release_ccb (p_ccb); |
| 894 | } |
| 895 | } |
| 896 | |
| 897 | /******************************************************************************* |
| 898 | ** |
| 899 | ** Function gap_config_ind |
| 900 | ** |
| 901 | ** Description This function processes the L2CAP configuration indication |
| 902 | ** event. |
| 903 | ** |
| 904 | ** Returns void |
| 905 | ** |
| 906 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 907 | static void gap_config_ind (uint16_t l2cap_cid, tL2CAP_CFG_INFO *p_cfg) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 908 | { |
| 909 | tGAP_CCB *p_ccb; |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 910 | uint16_t local_mtu_size; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 911 | |
| 912 | /* Find CCB based on CID */ |
| 913 | if ((p_ccb = gap_find_ccb_by_cid (l2cap_cid)) == NULL) |
| 914 | return; |
| 915 | |
| 916 | /* Remember the remote MTU size */ |
| 917 | |
| 918 | if (p_ccb->cfg.fcr.mode == L2CAP_FCR_ERTM_MODE) |
| 919 | { |
Pavlin Radoslavov | 1d5b859 | 2015-09-23 10:08:20 -0700 | [diff] [blame] | 920 | local_mtu_size = p_ccb->ertm_info.user_tx_buf_size |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 921 | - sizeof(BT_HDR) - L2CAP_MIN_OFFSET; |
| 922 | } |
| 923 | else |
| 924 | local_mtu_size = L2CAP_MTU_SIZE; |
| 925 | |
| 926 | if ((!p_cfg->mtu_present)||(p_cfg->mtu > local_mtu_size)) |
| 927 | { |
| 928 | p_ccb->rem_mtu_size = local_mtu_size; |
| 929 | } |
| 930 | else |
| 931 | p_ccb->rem_mtu_size = p_cfg->mtu; |
| 932 | |
| 933 | /* For now, always accept configuration from the other side */ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 934 | p_cfg->flush_to_present = false; |
| 935 | p_cfg->mtu_present = false; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 936 | p_cfg->result = L2CAP_CFG_OK; |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 937 | p_cfg->fcs_present = false; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 938 | |
| 939 | L2CA_CONFIG_RSP (l2cap_cid, p_cfg); |
| 940 | |
| 941 | p_ccb->con_flags |= GAP_CCB_FLAGS_HIS_CFG_DONE; |
| 942 | |
| 943 | gap_checks_con_flags (p_ccb); |
| 944 | } |
| 945 | |
| 946 | |
| 947 | /******************************************************************************* |
| 948 | ** |
| 949 | ** Function gap_config_cfm |
| 950 | ** |
| 951 | ** Description This function processes the L2CAP configuration confirmation |
| 952 | ** event. |
| 953 | ** |
| 954 | ** Returns void |
| 955 | ** |
| 956 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 957 | static void gap_config_cfm (uint16_t l2cap_cid, tL2CAP_CFG_INFO *p_cfg) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 958 | { |
| 959 | tGAP_CCB *p_ccb; |
| 960 | |
| 961 | /* Find CCB based on CID */ |
| 962 | if ((p_ccb = gap_find_ccb_by_cid (l2cap_cid)) == NULL) |
| 963 | return; |
| 964 | |
| 965 | if (p_cfg->result == L2CAP_CFG_OK) |
| 966 | { |
| 967 | p_ccb->con_flags |= GAP_CCB_FLAGS_MY_CFG_DONE; |
| 968 | |
| 969 | |
| 970 | if (p_ccb->cfg.fcr_present) |
| 971 | p_ccb->cfg.fcr.mode = p_cfg->fcr.mode; |
| 972 | else |
| 973 | p_ccb->cfg.fcr.mode = L2CAP_FCR_BASIC_MODE; |
| 974 | |
| 975 | gap_checks_con_flags (p_ccb); |
| 976 | } |
| 977 | else |
| 978 | { |
| 979 | p_ccb->p_callback (p_ccb->gap_handle, GAP_EVT_CONN_CLOSED); |
| 980 | gap_release_ccb (p_ccb); |
| 981 | } |
| 982 | } |
| 983 | |
| 984 | |
| 985 | /******************************************************************************* |
| 986 | ** |
| 987 | ** Function gap_disconnect_ind |
| 988 | ** |
| 989 | ** Description This function handles a disconnect event from L2CAP. If |
| 990 | ** requested to, we ack the disconnect before dropping the CCB |
| 991 | ** |
| 992 | ** Returns void |
| 993 | ** |
| 994 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 995 | static void gap_disconnect_ind (uint16_t l2cap_cid, bool ack_needed) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 996 | { |
| 997 | tGAP_CCB *p_ccb; |
| 998 | |
| 999 | GAP_TRACE_EVENT ("GAP_CONN - Rcvd L2CAP disc, CID: 0x%x", l2cap_cid); |
| 1000 | |
| 1001 | /* Find CCB based on CID */ |
| 1002 | if ((p_ccb = gap_find_ccb_by_cid (l2cap_cid)) == NULL) |
| 1003 | return; |
| 1004 | |
| 1005 | if (ack_needed) |
| 1006 | L2CA_DISCONNECT_RSP (l2cap_cid); |
| 1007 | |
| 1008 | p_ccb->p_callback (p_ccb->gap_handle, GAP_EVT_CONN_CLOSED); |
| 1009 | gap_release_ccb (p_ccb); |
| 1010 | } |
| 1011 | |
| 1012 | |
| 1013 | /******************************************************************************* |
| 1014 | ** |
| 1015 | ** Function gap_data_ind |
| 1016 | ** |
| 1017 | ** Description This function is called when data is received from L2CAP. |
| 1018 | ** |
| 1019 | ** Returns void |
| 1020 | ** |
| 1021 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 1022 | static void gap_data_ind (uint16_t l2cap_cid, BT_HDR *p_msg) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1023 | { |
| 1024 | tGAP_CCB *p_ccb; |
| 1025 | |
| 1026 | /* Find CCB based on CID */ |
| 1027 | if ((p_ccb = gap_find_ccb_by_cid (l2cap_cid)) == NULL) |
| 1028 | { |
Pavlin Radoslavov | cceb430 | 2016-02-05 13:54:43 -0800 | [diff] [blame] | 1029 | osi_free(p_msg); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1030 | return; |
| 1031 | } |
| 1032 | |
| 1033 | if (p_ccb->con_state == GAP_CCB_STATE_CONNECTED) |
| 1034 | { |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame] | 1035 | fixed_queue_enqueue(p_ccb->rx_queue, p_msg); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1036 | |
| 1037 | p_ccb->rx_queue_size += p_msg->len; |
| 1038 | /* |
| 1039 | GAP_TRACE_EVENT ("gap_data_ind - rx_queue_size=%d, msg len=%d", |
| 1040 | p_ccb->rx_queue_size, p_msg->len); |
| 1041 | */ |
| 1042 | |
| 1043 | p_ccb->p_callback (p_ccb->gap_handle, GAP_EVT_CONN_DATA_AVAIL); |
| 1044 | } |
| 1045 | else |
| 1046 | { |
Pavlin Radoslavov | cceb430 | 2016-02-05 13:54:43 -0800 | [diff] [blame] | 1047 | osi_free(p_msg); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1048 | } |
| 1049 | } |
| 1050 | |
| 1051 | |
| 1052 | /******************************************************************************* |
| 1053 | ** |
| 1054 | ** Function gap_congestion_ind |
| 1055 | ** |
| 1056 | ** Description This is a callback function called by L2CAP when |
| 1057 | ** data L2CAP congestion status changes |
| 1058 | ** |
| 1059 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 1060 | static void gap_congestion_ind (uint16_t lcid, bool is_congested) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1061 | { |
| 1062 | tGAP_CCB *p_ccb; |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 1063 | uint16_t event; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1064 | BT_HDR *p_buf; |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 1065 | uint8_t status; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1066 | |
| 1067 | GAP_TRACE_EVENT ("GAP_CONN - Rcvd L2CAP Is Congested (%d), CID: 0x%x", |
| 1068 | is_congested, lcid); |
| 1069 | |
| 1070 | /* Find CCB based on CID */ |
| 1071 | if ((p_ccb = gap_find_ccb_by_cid (lcid)) == NULL) |
| 1072 | return; |
| 1073 | |
| 1074 | p_ccb->is_congested = is_congested; |
| 1075 | |
| 1076 | event = (is_congested) ? GAP_EVT_CONN_CONGESTED : GAP_EVT_CONN_UNCONGESTED; |
| 1077 | p_ccb->p_callback (p_ccb->gap_handle, event); |
| 1078 | |
| 1079 | if (!is_congested) |
| 1080 | { |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame] | 1081 | while ((p_buf = (BT_HDR *)fixed_queue_try_dequeue(p_ccb->tx_queue)) != NULL) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1082 | { |
| 1083 | status = L2CA_DATA_WRITE (p_ccb->connection_id, p_buf); |
| 1084 | |
| 1085 | if (status == L2CAP_DW_CONGESTED) |
| 1086 | { |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 1087 | p_ccb->is_congested = true; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1088 | break; |
| 1089 | } |
| 1090 | else if (status != L2CAP_DW_SUCCESS) |
| 1091 | break; |
| 1092 | } |
| 1093 | } |
| 1094 | } |
| 1095 | |
| 1096 | |
| 1097 | /******************************************************************************* |
| 1098 | ** |
| 1099 | ** Function gap_find_ccb_by_cid |
| 1100 | ** |
| 1101 | ** Description This function searches the CCB table for an entry with the |
| 1102 | ** passed CID. |
| 1103 | ** |
| 1104 | ** Returns the CCB address, or NULL if not found. |
| 1105 | ** |
| 1106 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 1107 | static tGAP_CCB *gap_find_ccb_by_cid (uint16_t cid) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1108 | { |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 1109 | uint16_t xx; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1110 | tGAP_CCB *p_ccb; |
| 1111 | |
| 1112 | /* Look through each connection control block */ |
| 1113 | for (xx = 0, p_ccb = gap_cb.conn.ccb_pool; xx < GAP_MAX_CONNECTIONS; xx++, p_ccb++) |
| 1114 | { |
| 1115 | if ((p_ccb->con_state != GAP_CCB_STATE_IDLE) && (p_ccb->connection_id == cid)) |
| 1116 | return (p_ccb); |
| 1117 | } |
| 1118 | |
| 1119 | /* If here, not found */ |
| 1120 | return (NULL); |
| 1121 | } |
| 1122 | |
| 1123 | |
| 1124 | /******************************************************************************* |
| 1125 | ** |
| 1126 | ** Function gap_find_ccb_by_handle |
| 1127 | ** |
| 1128 | ** Description This function searches the CCB table for an entry with the |
| 1129 | ** passed handle. |
| 1130 | ** |
| 1131 | ** Returns the CCB address, or NULL if not found. |
| 1132 | ** |
| 1133 | *******************************************************************************/ |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 1134 | static tGAP_CCB *gap_find_ccb_by_handle (uint16_t handle) |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1135 | { |
| 1136 | tGAP_CCB *p_ccb; |
| 1137 | |
| 1138 | /* Check that handle is valid */ |
| 1139 | if (handle < GAP_MAX_CONNECTIONS) |
| 1140 | { |
| 1141 | p_ccb = &gap_cb.conn.ccb_pool[handle]; |
| 1142 | |
| 1143 | if (p_ccb->con_state != GAP_CCB_STATE_IDLE) |
| 1144 | return (p_ccb); |
| 1145 | } |
| 1146 | |
| 1147 | /* If here, handle points to invalid connection */ |
| 1148 | return (NULL); |
| 1149 | } |
| 1150 | |
| 1151 | |
| 1152 | /******************************************************************************* |
| 1153 | ** |
| 1154 | ** Function gap_allocate_ccb |
| 1155 | ** |
| 1156 | ** Description This function allocates a new CCB. |
| 1157 | ** |
| 1158 | ** Returns CCB address, or NULL if none available. |
| 1159 | ** |
| 1160 | *******************************************************************************/ |
| 1161 | static tGAP_CCB *gap_allocate_ccb (void) |
| 1162 | { |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 1163 | uint16_t xx; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1164 | tGAP_CCB *p_ccb; |
| 1165 | |
| 1166 | /* Look through each connection control block for a free one */ |
| 1167 | for (xx = 0, p_ccb = gap_cb.conn.ccb_pool; xx < GAP_MAX_CONNECTIONS; xx++, p_ccb++) |
| 1168 | { |
| 1169 | if (p_ccb->con_state == GAP_CCB_STATE_IDLE) |
| 1170 | { |
| 1171 | memset (p_ccb, 0, sizeof (tGAP_CCB)); |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame] | 1172 | p_ccb->tx_queue = fixed_queue_new(SIZE_MAX); |
| 1173 | p_ccb->rx_queue = fixed_queue_new(SIZE_MAX); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1174 | |
| 1175 | p_ccb->gap_handle = xx; |
| 1176 | p_ccb->rem_mtu_size = L2CAP_MTU_SIZE; |
| 1177 | |
| 1178 | return (p_ccb); |
| 1179 | } |
| 1180 | } |
| 1181 | |
| 1182 | /* If here, no free CCB found */ |
| 1183 | return (NULL); |
| 1184 | } |
| 1185 | |
| 1186 | |
| 1187 | /******************************************************************************* |
| 1188 | ** |
| 1189 | ** Function gap_release_ccb |
| 1190 | ** |
| 1191 | ** Description This function releases a CCB. |
| 1192 | ** |
| 1193 | ** Returns void |
| 1194 | ** |
| 1195 | *******************************************************************************/ |
| 1196 | static void gap_release_ccb (tGAP_CCB *p_ccb) |
| 1197 | { |
Marie Janssen | d19e078 | 2016-07-15 12:48:27 -0700 | [diff] [blame] | 1198 | uint16_t xx; |
| 1199 | uint16_t psm = p_ccb->psm; |
| 1200 | uint8_t service_id = p_ccb->service_id; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1201 | |
| 1202 | /* Drop any buffers we may be holding */ |
| 1203 | p_ccb->rx_queue_size = 0; |
| 1204 | |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame] | 1205 | while (!fixed_queue_is_empty(p_ccb->rx_queue)) |
Pavlin Radoslavov | cceb430 | 2016-02-05 13:54:43 -0800 | [diff] [blame] | 1206 | osi_free(fixed_queue_try_dequeue(p_ccb->rx_queue)); |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame] | 1207 | fixed_queue_free(p_ccb->rx_queue, NULL); |
| 1208 | p_ccb->rx_queue = NULL; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1209 | |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame] | 1210 | while (!fixed_queue_is_empty(p_ccb->tx_queue)) |
Pavlin Radoslavov | cceb430 | 2016-02-05 13:54:43 -0800 | [diff] [blame] | 1211 | osi_free(fixed_queue_try_dequeue(p_ccb->tx_queue)); |
Pavlin Radoslavov | 1a3844f | 2015-09-25 11:21:15 -0700 | [diff] [blame] | 1212 | fixed_queue_free(p_ccb->tx_queue, NULL); |
| 1213 | p_ccb->tx_queue = NULL; |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1214 | |
| 1215 | p_ccb->con_state = GAP_CCB_STATE_IDLE; |
| 1216 | |
| 1217 | /* If no-one else is using the PSM, deregister from L2CAP */ |
| 1218 | for (xx = 0, p_ccb = gap_cb.conn.ccb_pool; xx < GAP_MAX_CONNECTIONS; xx++, p_ccb++) |
| 1219 | { |
| 1220 | if ((p_ccb->con_state != GAP_CCB_STATE_IDLE) && (p_ccb->psm == psm)) |
| 1221 | return; |
| 1222 | } |
| 1223 | |
| 1224 | /* Free the security record for this PSM */ |
| 1225 | BTM_SecClrService(service_id); |
Navin Kochar | 6721232 | 2016-03-09 23:11:53 +0530 | [diff] [blame] | 1226 | if (p_ccb->transport == BT_TRANSPORT_BR_EDR) |
| 1227 | L2CA_DEREGISTER (psm); |
| 1228 | |
| 1229 | if(p_ccb->transport == BT_TRANSPORT_LE) |
| 1230 | L2CA_DEREGISTER_COC (psm); |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1231 | } |
| 1232 | |
Kim Schulz | 8372aa5 | 2015-03-25 10:39:40 +0100 | [diff] [blame] | 1233 | #endif /* GAP_CONN_INCLUDED */ |