1 /****************************************************************************** 2 * 3 * Copyright (C) 1999-2012 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 #ifndef L2CDEFS_H 20 #define L2CDEFS_H 21 22 /* L2CAP command codes 23 */ 24 #define L2CAP_CMD_REJECT 0x01 25 #define L2CAP_CMD_CONN_REQ 0x02 26 #define L2CAP_CMD_CONN_RSP 0x03 27 #define L2CAP_CMD_CONFIG_REQ 0x04 28 #define L2CAP_CMD_CONFIG_RSP 0x05 29 #define L2CAP_CMD_DISC_REQ 0x06 30 #define L2CAP_CMD_DISC_RSP 0x07 31 #define L2CAP_CMD_ECHO_REQ 0x08 32 #define L2CAP_CMD_ECHO_RSP 0x09 33 #define L2CAP_CMD_INFO_REQ 0x0A 34 #define L2CAP_CMD_INFO_RSP 0x0B 35 #define L2CAP_CMD_AMP_CONN_REQ 0x0C 36 #define L2CAP_CMD_AMP_CONN_RSP 0x0D 37 #define L2CAP_CMD_AMP_MOVE_REQ 0x0E 38 #define L2CAP_CMD_AMP_MOVE_RSP 0x0F 39 #define L2CAP_CMD_AMP_MOVE_CFM 0x10 40 #define L2CAP_CMD_AMP_MOVE_CFM_RSP 0x11 41 #define L2CAP_CMD_BLE_UPDATE_REQ 0x12 42 #define L2CAP_CMD_BLE_UPDATE_RSP 0x13 43 #define L2CAP_CMD_BLE_CREDIT_BASED_CONN_REQ 0x14 44 #define L2CAP_CMD_BLE_CREDIT_BASED_CONN_RES 0x15 45 #define L2CAP_CMD_BLE_FLOW_CTRL_CREDIT 0x16 46 47 /* Define some packet and header lengths 48 */ 49 #define L2CAP_PKT_OVERHEAD 4 /* Length and CID */ 50 #define L2CAP_CMD_OVERHEAD 4 /* Cmd code, Id and length */ 51 #define L2CAP_CMD_REJECT_LEN 2 /* Reason (data is optional) */ 52 #define L2CAP_CONN_REQ_LEN 4 /* PSM and source CID */ 53 #define L2CAP_CONN_RSP_LEN 8 /* Dest CID, source CID, reason, status */ 54 #define L2CAP_CONFIG_REQ_LEN 4 /* Dest CID, flags (data is optional) */ 55 #define L2CAP_CONFIG_RSP_LEN 6 /* Dest CID, flags, result,data optional*/ 56 #define L2CAP_DISC_REQ_LEN 4 /* Dest CID, source CID */ 57 #define L2CAP_DISC_RSP_LEN 4 /* Dest CID, source CID */ 58 #define L2CAP_ECHO_REQ_LEN 0 /* Data is optional */ 59 #define L2CAP_ECHO_RSP_LEN 0 /* Data is optional */ 60 #define L2CAP_INFO_REQ_LEN 2 /* Info type */ 61 #define L2CAP_INFO_RSP_LEN 4 /* Info type, result (data is optional) */ 62 #define L2CAP_UCD_OVERHEAD 2 /* Additional connectionless packet overhead */ 63 64 #define L2CAP_AMP_CONN_REQ_LEN 5 /* PSM, CID, and remote controller ID */ 65 #define L2CAP_AMP_MOVE_REQ_LEN 3 /* CID and remote controller ID */ 66 #define L2CAP_AMP_MOVE_RSP_LEN 4 /* CID and result */ 67 #define L2CAP_AMP_MOVE_CFM_LEN 4 /* CID and result */ 68 #define L2CAP_AMP_MOVE_CFM_RSP_LEN 2 /* CID */ 69 70 #define L2CAP_CMD_BLE_UPD_REQ_LEN 8 /* Min and max interval, latency, tout */ 71 #define L2CAP_CMD_BLE_UPD_RSP_LEN 2 /* Result */ 72 73 #define L2CAP_CMD_BLE_CREDIT_BASED_CONN_REQ_LEN 10 /* LE_PSM, SCID, MTU, MPS, Init Credit */ 74 #define L2CAP_CMD_BLE_CREDIT_BASED_CONN_RES_LEN 10 /* DCID, MTU, MPS, Init credit, Result */ 75 #define L2CAP_CMD_BLE_FLOW_CTRL_CREDIT_LEN 4 /* CID, Credit */ 76 77 /* Define the packet boundary flags 78 */ 79 #if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE) 80 #define L2CAP_PKT_START_FLUSHABLE 2 81 #define L2CAP_PKT_START_NON_FLUSHABLE 0 82 #endif 83 #define L2CAP_COMPLETE_AMP_PKT 3 /* complete L2CAP packet on AMP HCI */ 84 #define L2CAP_PKT_START 2 85 #define L2CAP_PKT_CONTINUE 1 86 #define L2CAP_MASK_FLAG 0x0FFF 87 #define L2CAP_PKT_TYPE_SHIFT 12 88 #define L2CAP_PKT_TYPE_MASK 3 89 90 91 /* Define the L2CAP connection result codes 92 */ 93 #define L2CAP_CONN_OK 0 94 #define L2CAP_CONN_PENDING 1 95 #define L2CAP_CONN_NO_PSM 2 96 #define L2CAP_CONN_SECURITY_BLOCK 3 97 #define L2CAP_CONN_NO_RESOURCES 4 98 #define L2CAP_CONN_BAD_CTLR_ID 5 /* AMP related */ 99 #define L2CAP_CONN_TIMEOUT 0xEEEE 100 #define L2CAP_CONN_AMP_FAILED 254 101 #define L2CAP_CONN_NO_LINK 255 /* Add a couple of our own for internal use */ 102 #define L2CAP_CONN_CANCEL 256 /* L2CAP connection cancelled */ 103 104 /* Define the LE L2CAP connection result codes 105 */ 106 #define L2CAP_LE_CONN_OK 0 107 #define L2CAP_LE_NO_PSM 2 108 #define L2CAP_LE_NO_RESOURCES 4 109 #define L2CAP_LE_INSUFFICIENT_AUTHENTICATION 5 110 #define L2CAP_LE_INSUFFICIENT_AUTHORIZATION 6 111 #define L2CAP_LE_INSUFFICIENT_ENCRYP_KEY_SIZE 7 112 #define L2CAP_LE_INSUFFICIENT_ENCRYP 8 113 #define L2CAP_LE_INVALID_SOURCE_CID 9 /* We don't like peer device response */ 114 115 /* Define L2CAP Move Channel Response result codes 116 */ 117 #define L2CAP_MOVE_OK 0 118 #define L2CAP_MOVE_PENDING 1 119 #define L2CAP_MOVE_CTRL_ID_NOT_SUPPORT 2 120 #define L2CAP_MOVE_SAME_CTRLR_ID 3 121 #define L2CAP_MOVE_CONFIG_NOT_SUPPORTED 4 122 #define L2CAP_MOVE_CHAN_COLLISION 5 123 #define L2CAP_MOVE_NOT_ALLOWED 6 124 125 126 /* Define L2CAP Move Channel Confirmation result codes 127 */ 128 #define L2CAP_MOVE_CFM_OK 0 129 #define L2CAP_MOVE_CFM_REFUSED 1 130 131 132 /* Define the L2CAP command reject reason codes 133 */ 134 #define L2CAP_CMD_REJ_NOT_UNDERSTOOD 0 135 #define L2CAP_CMD_REJ_MTU_EXCEEDED 1 136 #define L2CAP_CMD_REJ_INVALID_CID 2 137 138 139 /* L2CAP Predefined CIDs 140 */ 141 #define L2CAP_SIGNALLING_CID 1 142 #define L2CAP_CONNECTIONLESS_CID 2 143 #define L2CAP_AMP_CID 3 144 #define L2CAP_ATT_CID 4 145 #define L2CAP_BLE_SIGNALLING_CID 5 146 #define L2CAP_SMP_CID 6 147 #define L2CAP_SMP_BR_CID 7 148 #define L2CAP_AMP_TEST_CID 0x003F 149 #define L2CAP_BASE_APPL_CID 0x0040 150 #define L2CAP_BLE_CONN_MAX_CID 0x007F 151 152 /* Fixed Channels mask bits */ 153 154 /* Signal channel supported (Mandatory) */ 155 #define L2CAP_FIXED_CHNL_SIG_BIT (1 << L2CAP_SIGNALLING_CID) 156 157 /* Connectionless reception */ 158 #define L2CAP_FIXED_CHNL_CNCTLESS_BIT (1 << L2CAP_CONNECTIONLESS_CID) 159 160 /* AMP Manager supported */ 161 #define L2CAP_FIXED_CHNL_AMP_BIT (1 << L2CAP_AMP_CID) 162 163 /* Attribute protocol supported */ 164 #define L2CAP_FIXED_CHNL_ATT_BIT (1 << L2CAP_ATT_CID) 165 166 /* BLE Signalling supported */ 167 #define L2CAP_FIXED_CHNL_BLE_SIG_BIT (1 << L2CAP_BLE_SIGNALLING_CID) 168 169 /* BLE Security Mgr supported */ 170 #define L2CAP_FIXED_CHNL_SMP_BIT (1 << L2CAP_SMP_CID) 171 172 /* Security Mgr over BR supported */ 173 #define L2CAP_FIXED_CHNL_SMP_BR_BIT (1 << L2CAP_SMP_BR_CID) 174 175 176 177 /* Define the L2CAP configuration result codes 178 */ 179 #define L2CAP_CFG_OK 0 180 #define L2CAP_CFG_UNACCEPTABLE_PARAMS 1 181 #define L2CAP_CFG_FAILED_NO_REASON 2 182 #define L2CAP_CFG_UNKNOWN_OPTIONS 3 183 #define L2CAP_CFG_PENDING 4 184 #define L2CAP_CFG_FLOW_SPEC_REJECTED 5 185 186 187 /* Define the L2CAP configuration option types 188 */ 189 #define L2CAP_CFG_TYPE_MTU 0x01 190 #define L2CAP_CFG_TYPE_FLUSH_TOUT 0x02 191 #define L2CAP_CFG_TYPE_QOS 0x03 192 #define L2CAP_CFG_TYPE_FCR 0x04 193 #define L2CAP_CFG_TYPE_FCS 0x05 194 #define L2CAP_CFG_TYPE_EXT_FLOW 0x06 195 #define L2CAP_CFG_TYPE_EXT_WIN_SIZE 0x07 196 197 #define L2CAP_CFG_MTU_OPTION_LEN 2 /* MTU option length */ 198 #define L2CAP_CFG_FLUSH_OPTION_LEN 2 /* Flush option len */ 199 #define L2CAP_CFG_QOS_OPTION_LEN 22 /* QOS option length */ 200 #define L2CAP_CFG_FCR_OPTION_LEN 9 /* FCR option length */ 201 #define L2CAP_CFG_FCS_OPTION_LEN 1 /* FCR option length */ 202 #define L2CAP_CFG_EXT_FLOW_OPTION_LEN 16 /* Extended Flow Spec */ 203 #define L2CAP_CFG_EXT_WIN_SIZE_LEN 2 /* Ext window size length */ 204 #define L2CAP_CFG_OPTION_OVERHEAD 2 /* Type and length */ 205 206 /* Configuration Cmd/Rsp Flags mask 207 */ 208 #define L2CAP_CFG_FLAGS_MASK_CONT 0x0001 /* Flags mask: Continuation */ 209 210 /* FCS Check Option values 211 */ 212 #define L2CAP_CFG_FCS_BYPASS 0 /* Bypass the FCS in streaming or ERTM modes */ 213 #define L2CAP_CFG_FCS_USE 1 /* Use the FCS in streaming or ERTM modes [default] */ 214 215 /* Default values for configuration 216 */ 217 #define L2CAP_NO_AUTOMATIC_FLUSH 0xFFFF 218 #define L2CAP_NO_RETRANSMISSION 0x0001 219 220 #define L2CAP_DEFAULT_MTU (672) 221 #define L2CAP_DEFAULT_FLUSH_TO L2CAP_NO_AUTOMATIC_FLUSH 222 #define L2CAP_DEFAULT_SERV_TYPE 1 223 #define L2CAP_DEFAULT_TOKEN_RATE 0 224 #define L2CAP_DEFAULT_BUCKET_SIZE 0 225 #define L2CAP_DEFAULT_PEAK_BANDWIDTH 0 226 #define L2CAP_DEFAULT_LATENCY 0xFFFFFFFF 227 #define L2CAP_DEFAULT_DELAY 0xFFFFFFFF 228 #define L2CAP_DEFAULT_FCS L2CAP_CFG_FCS_USE 229 230 231 /* Define the L2CAP disconnect result codes 232 */ 233 #define L2CAP_DISC_OK 0 234 #define L2CAP_DISC_TIMEOUT 0xEEEE 235 236 /* Define the L2CAP info resp result codes 237 */ 238 #define L2CAP_INFO_RESP_RESULT_SUCCESS 0 239 #define L2CAP_INFO_RESP_RESULT_NOT_SUPPORTED 1 240 241 /* Define the info-type fields of information request & response 242 */ 243 #define L2CAP_CONNLESS_MTU_INFO_TYPE 0x0001 244 #define L2CAP_EXTENDED_FEATURES_INFO_TYPE 0x0002 /* Used in Information Req/Response */ 245 #define L2CAP_FIXED_CHANNELS_INFO_TYPE 0x0003 /* Used in AMP */ 246 247 #define L2CAP_CONNLESS_MTU_INFO_SIZE 2 /* Connectionless MTU size */ 248 #define L2CAP_EXTENDED_FEATURES_ARRAY_SIZE 4 /* Extended features array size */ 249 #define L2CAP_FIXED_CHNL_ARRAY_SIZE 8 /* Fixed channel array size */ 250 251 /* Extended features mask bits 252 */ 253 #define L2CAP_EXTFEA_RTRANS 0x00000001 /* Retransmission Mode (Not Supported) */ 254 #define L2CAP_EXTFEA_FC 0x00000002 /* Flow Control Mode (Not Supported) */ 255 #define L2CAP_EXTFEA_QOS 0x00000004 256 #define L2CAP_EXTFEA_ENH_RETRANS 0x00000008 /* Enhanced retransmission mode */ 257 #define L2CAP_EXTFEA_STREAM_MODE 0x00000010 /* Streaming Mode */ 258 #define L2CAP_EXTFEA_NO_CRC 0x00000020 /* Optional FCS (if set No FCS desired) */ 259 #define L2CAP_EXTFEA_EXT_FLOW_SPEC 0x00000040 /* Extended flow spec */ 260 #define L2CAP_EXTFEA_FIXED_CHNLS 0x00000080 /* Fixed channels */ 261 #define L2CAP_EXTFEA_EXT_WINDOW 0x00000100 /* Extended Window Size */ 262 #define L2CAP_EXTFEA_UCD_RECEPTION 0x00000200 /* Unicast Connectionless Data Reception */ 263 264 /* Mask for locally supported features used in Information Response (default to none) */ 265 #ifndef L2CAP_EXTFEA_SUPPORTED_MASK 266 #define L2CAP_EXTFEA_SUPPORTED_MASK 0 267 #endif 268 269 /* Mask for LE supported features used in Information Response (default to none) */ 270 #ifndef L2CAP_BLE_EXTFEA_MASK 271 #define L2CAP_BLE_EXTFEA_MASK 0 272 #endif 273 274 /* Define a value that tells L2CAP to use the default HCI ACL buffer size */ 275 #define L2CAP_INVALID_ERM_BUF_SIZE 0 276 /* Define a value that tells L2CAP to use the default MPS */ 277 #define L2CAP_DEFAULT_ERM_MPS 0x0000 278 279 #define L2CAP_FCR_OVERHEAD 2 /* Control word */ 280 #define L2CAP_FCS_LEN 2 /* FCS takes 2 bytes */ 281 #define L2CAP_SDU_LEN_OVERHEAD 2 /* SDU length field is 2 bytes */ 282 #define L2CAP_SDU_LEN_OFFSET 2 /* SDU length offset is 2 bytes */ 283 #define L2CAP_EXT_CONTROL_OVERHEAD 4 /* Extended Control Field */ 284 #define L2CAP_MAX_HEADER_FCS (L2CAP_PKT_OVERHEAD + L2CAP_EXT_CONTROL_OVERHEAD + L2CAP_SDU_LEN_OVERHEAD + L2CAP_FCS_LEN) 285 /* length(2), channel(2), control(4), SDU length(2) FCS(2) */ 286 287 /* To optimize this, it must be a multiplum of the L2CAP PDU length AND match the 3DH5 air 288 * including the l2cap headers in each packet - to match the latter - the -5 is added 289 * Changed it to 8087 to have same value between BTIF and L2cap layers 290 */ 291 #define L2CAP_MAX_SDU_LENGTH (8080 + 26 - (L2CAP_MIN_OFFSET + 6)) 292 #define L2CAP_MAX_BUF_SIZE (10240 + 24) 293 294 /* Part of L2CAP_MIN_OFFSET that is not part of L2CAP 295 */ 296 #define L2CAP_OFFSET_WO_L2HDR (L2CAP_MIN_OFFSET-(L2CAP_PKT_OVERHEAD+L2CAP_FCR_OVERHEAD)) 297 298 /* SAR bits in the control word 299 */ 300 #define L2CAP_FCR_UNSEG_SDU 0x0000 /* Control word to begin with for unsegmented PDU*/ 301 #define L2CAP_FCR_START_SDU 0x4000 /* ...for Starting PDU of a semented SDU */ 302 #define L2CAP_FCR_END_SDU 0x8000 /* ...for ending PDU of a segmented SDU */ 303 #define L2CAP_FCR_CONT_SDU 0xc000 /* ...for continuation PDU of a segmented SDU */ 304 305 /* Supervisory frame types 306 */ 307 #define L2CAP_FCR_SUP_RR 0x0000 /* Supervisory frame - RR */ 308 #define L2CAP_FCR_SUP_REJ 0x0001 /* Supervisory frame - REJ */ 309 #define L2CAP_FCR_SUP_RNR 0x0002 /* Supervisory frame - RNR */ 310 #define L2CAP_FCR_SUP_SREJ 0x0003 /* Supervisory frame - SREJ */ 311 312 #define L2CAP_FCR_SAR_BITS 0xC000 /* Mask to get the SAR bits from control word */ 313 #define L2CAP_FCR_SAR_BITS_SHIFT 14 /* Bits to shift right to get the SAR bits from ctrl-word */ 314 315 #define L2CAP_FCR_S_FRAME_BIT 0x0001 /* Mask to check if a PDU is S-frame */ 316 #define L2CAP_FCR_REQ_SEQ_BITS 0x3F00 /* Mask to get the req-seq from control word */ 317 #define L2CAP_FCR_REQ_SEQ_BITS_SHIFT 8 /* Bits to shift right to get the req-seq from ctrl-word */ 318 #define L2CAP_FCR_TX_SEQ_BITS 0x007E /* Mask on get the tx-seq from control word */ 319 #define L2CAP_FCR_TX_SEQ_BITS_SHIFT 1 /* Bits to shift right to get the tx-seq from ctrl-word */ 320 321 #define L2CAP_FCR_F_BIT 0x0080 /* F-bit in the control word (Sup and I frames) */ 322 #define L2CAP_FCR_P_BIT 0x0010 /* P-bit in the control word (Sup frames only) */ 323 324 #define L2CAP_FCR_F_BIT_SHIFT 7 325 #define L2CAP_FCR_P_BIT_SHIFT 4 326 327 #define L2CAP_FCR_SEG_BITS 0xC000 /* Mask to get the segmentation bits from ctrl-word */ 328 #define L2CAP_FCR_SUP_SHIFT 2 /* Bits to shift right to get the S-bits from ctrl-word */ 329 #define L2CAP_FCR_SUP_BITS 0x000C /* Mask to get the supervisory bits from ctrl-word */ 330 331 #define L2CAP_FCR_INIT_CRC 0 /* Initial state of the CRC register */ 332 #define L2CAP_FCR_SEQ_MODULO 0x3F /* Mask for sequence numbers (range 0 - 63) */ 333 334 #endif 335