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/* Length and CID */ 50#define L2CAP_PKT_OVERHEAD 4 51/* Cmd code, Id and length */ 52#define L2CAP_CMD_OVERHEAD 4 53/* Reason (data is optional) */ 54#define L2CAP_CMD_REJECT_LEN 2 55/* PSM and source CID */ 56#define L2CAP_CONN_REQ_LEN 4 57/* Dest CID, source CID, reason, status */ 58#define L2CAP_CONN_RSP_LEN 8 59/* Dest CID, flags (data is optional) */ 60#define L2CAP_CONFIG_REQ_LEN 4 61/* Dest CID, flags, result,data optional*/ 62#define L2CAP_CONFIG_RSP_LEN 6 63/* Dest CID, source CID */ 64#define L2CAP_DISC_REQ_LEN 4 65/* Dest CID, source CID */ 66#define L2CAP_DISC_RSP_LEN 4 67/* Data is optional */ 68#define L2CAP_ECHO_REQ_LEN 0 69/* Data is optional */ 70#define L2CAP_ECHO_RSP_LEN 0 71/* Info type */ 72#define L2CAP_INFO_REQ_LEN 2 73/* Info type, result (data is optional) */ 74#define L2CAP_INFO_RSP_LEN 4 75/* Additional connectionless packet overhead */ 76#define L2CAP_UCD_OVERHEAD 2 77 78/* PSM, CID, and remote controller ID */ 79#define L2CAP_AMP_CONN_REQ_LEN 5 80/* CID and remote controller ID */ 81#define L2CAP_AMP_MOVE_REQ_LEN 3 82/* CID and result */ 83#define L2CAP_AMP_MOVE_RSP_LEN 4 84/* CID and result */ 85#define L2CAP_AMP_MOVE_CFM_LEN 4 86/* CID */ 87#define L2CAP_AMP_MOVE_CFM_RSP_LEN 2 88 89/* Min and max interval, latency, tout */ 90#define L2CAP_CMD_BLE_UPD_REQ_LEN 8 91/* Result */ 92#define L2CAP_CMD_BLE_UPD_RSP_LEN 2 93 94/* LE_PSM, SCID, MTU, MPS, Init Credit */ 95#define L2CAP_CMD_BLE_CREDIT_BASED_CONN_REQ_LEN 10 96/* DCID, MTU, MPS, Init credit, Result */ 97#define L2CAP_CMD_BLE_CREDIT_BASED_CONN_RES_LEN 10 98/* CID, Credit */ 99#define L2CAP_CMD_BLE_FLOW_CTRL_CREDIT_LEN 4 100 101/* Define the packet boundary flags 102*/ 103#if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE) 104#define L2CAP_PKT_START_FLUSHABLE 2 105#define L2CAP_PKT_START_NON_FLUSHABLE 0 106#endif 107#define L2CAP_COMPLETE_AMP_PKT 3 /* complete L2CAP packet on AMP HCI */ 108#define L2CAP_PKT_START 2 109#define L2CAP_PKT_CONTINUE 1 110#define L2CAP_MASK_FLAG 0x0FFF 111#define L2CAP_PKT_TYPE_SHIFT 12 112#define L2CAP_PKT_TYPE_MASK 3 113 114/* Define the L2CAP connection result codes 115*/ 116#define L2CAP_CONN_OK 0 117#define L2CAP_CONN_PENDING 1 118#define L2CAP_CONN_NO_PSM 2 119#define L2CAP_CONN_SECURITY_BLOCK 3 120#define L2CAP_CONN_NO_RESOURCES 4 121#define L2CAP_CONN_BAD_CTLR_ID 5 /* AMP related */ 122#define L2CAP_CONN_TIMEOUT 0xEEEE 123#define L2CAP_CONN_AMP_FAILED 254 124/* Add a couple of our own for internal use */ 125#define L2CAP_CONN_NO_LINK 255 126#define L2CAP_CONN_CANCEL 256 /* L2CAP connection cancelled */ 127 128/* Define the LE L2CAP connection result codes 129*/ 130#define L2CAP_LE_CONN_OK 0 131#define L2CAP_LE_NO_PSM 2 132#define L2CAP_LE_NO_RESOURCES 4 133#define L2CAP_LE_INSUFFICIENT_AUTHENTICATION 5 134#define L2CAP_LE_INSUFFICIENT_AUTHORIZATION 6 135#define L2CAP_LE_INSUFFICIENT_ENCRYP_KEY_SIZE 7 136#define L2CAP_LE_INSUFFICIENT_ENCRYP 8 137/* We don't like peer device response */ 138#define L2CAP_LE_INVALID_SOURCE_CID 9 139#define L2CAP_LE_SOURCE_CID_ALREADY_ALLOCATED 0x0A 140 141/* Define L2CAP Move Channel Response result codes 142*/ 143#define L2CAP_MOVE_OK 0 144#define L2CAP_MOVE_PENDING 1 145#define L2CAP_MOVE_CTRL_ID_NOT_SUPPORT 2 146#define L2CAP_MOVE_SAME_CTRLR_ID 3 147#define L2CAP_MOVE_CONFIG_NOT_SUPPORTED 4 148#define L2CAP_MOVE_CHAN_COLLISION 5 149#define L2CAP_MOVE_NOT_ALLOWED 6 150 151/* Define L2CAP Move Channel Confirmation result codes 152*/ 153#define L2CAP_MOVE_CFM_OK 0 154#define L2CAP_MOVE_CFM_REFUSED 1 155 156/* Define the L2CAP command reject reason codes 157*/ 158#define L2CAP_CMD_REJ_NOT_UNDERSTOOD 0 159#define L2CAP_CMD_REJ_MTU_EXCEEDED 1 160#define L2CAP_CMD_REJ_INVALID_CID 2 161 162/* L2CAP Predefined CIDs 163*/ 164#define L2CAP_SIGNALLING_CID 1 165#define L2CAP_CONNECTIONLESS_CID 2 166#define L2CAP_AMP_CID 3 167#define L2CAP_ATT_CID 4 168#define L2CAP_BLE_SIGNALLING_CID 5 169#define L2CAP_SMP_CID 6 170#define L2CAP_SMP_BR_CID 7 171#define L2CAP_AMP_TEST_CID 0x003F 172#define L2CAP_BASE_APPL_CID 0x0040 173#define L2CAP_BLE_CONN_MAX_CID 0x007F 174 175/* Fixed Channels mask bits */ 176 177/* Signal channel supported (Mandatory) */ 178#define L2CAP_FIXED_CHNL_SIG_BIT (1 << L2CAP_SIGNALLING_CID) 179 180/* Connectionless reception */ 181#define L2CAP_FIXED_CHNL_CNCTLESS_BIT (1 << L2CAP_CONNECTIONLESS_CID) 182 183/* AMP Manager supported */ 184#define L2CAP_FIXED_CHNL_AMP_BIT (1 << L2CAP_AMP_CID) 185 186/* Attribute protocol supported */ 187#define L2CAP_FIXED_CHNL_ATT_BIT (1 << L2CAP_ATT_CID) 188 189/* BLE Signalling supported */ 190#define L2CAP_FIXED_CHNL_BLE_SIG_BIT (1 << L2CAP_BLE_SIGNALLING_CID) 191 192/* BLE Security Mgr supported */ 193#define L2CAP_FIXED_CHNL_SMP_BIT (1 << L2CAP_SMP_CID) 194 195/* Security Mgr over BR supported */ 196#define L2CAP_FIXED_CHNL_SMP_BR_BIT (1 << L2CAP_SMP_BR_CID) 197 198/* Define the L2CAP configuration result codes 199*/ 200#define L2CAP_CFG_OK 0 201#define L2CAP_CFG_UNACCEPTABLE_PARAMS 1 202#define L2CAP_CFG_FAILED_NO_REASON 2 203#define L2CAP_CFG_UNKNOWN_OPTIONS 3 204#define L2CAP_CFG_PENDING 4 205#define L2CAP_CFG_FLOW_SPEC_REJECTED 5 206 207/* Define the L2CAP configuration option types 208*/ 209#define L2CAP_CFG_TYPE_MTU 0x01 210#define L2CAP_CFG_TYPE_FLUSH_TOUT 0x02 211#define L2CAP_CFG_TYPE_QOS 0x03 212#define L2CAP_CFG_TYPE_FCR 0x04 213#define L2CAP_CFG_TYPE_FCS 0x05 214#define L2CAP_CFG_TYPE_EXT_FLOW 0x06 215#define L2CAP_CFG_TYPE_EXT_WIN_SIZE 0x07 216 217#define L2CAP_CFG_MTU_OPTION_LEN 2 /* MTU option length */ 218#define L2CAP_CFG_FLUSH_OPTION_LEN 2 /* Flush option len */ 219#define L2CAP_CFG_QOS_OPTION_LEN 22 /* QOS option length */ 220#define L2CAP_CFG_FCR_OPTION_LEN 9 /* FCR option length */ 221#define L2CAP_CFG_FCS_OPTION_LEN 1 /* FCR option length */ 222#define L2CAP_CFG_EXT_FLOW_OPTION_LEN 16 /* Extended Flow Spec */ 223#define L2CAP_CFG_EXT_WIN_SIZE_LEN 2 /* Ext window size length */ 224#define L2CAP_CFG_OPTION_OVERHEAD 2 /* Type and length */ 225 226/* Configuration Cmd/Rsp Flags mask 227*/ 228#define L2CAP_CFG_FLAGS_MASK_CONT 0x0001 /* Flags mask: Continuation */ 229 230/* FCS Check Option values 231*/ 232#define L2CAP_CFG_FCS_BYPASS 0 /* Bypass the FCS in streaming or ERTM modes */ 233#define L2CAP_CFG_FCS_USE \ 234 1 /* Use the FCS in streaming or ERTM modes [default] */ 235 236/* Default values for configuration 237*/ 238#define L2CAP_NO_AUTOMATIC_FLUSH 0xFFFF 239#define L2CAP_NO_RETRANSMISSION 0x0001 240 241#define L2CAP_DEFAULT_MTU (672) 242#define L2CAP_DEFAULT_FLUSH_TO L2CAP_NO_AUTOMATIC_FLUSH 243#define L2CAP_DEFAULT_SERV_TYPE 1 244#define L2CAP_DEFAULT_TOKEN_RATE 0 245#define L2CAP_DEFAULT_BUCKET_SIZE 0 246#define L2CAP_DEFAULT_PEAK_BANDWIDTH 0 247#define L2CAP_DEFAULT_LATENCY 0xFFFFFFFF 248#define L2CAP_DEFAULT_DELAY 0xFFFFFFFF 249#define L2CAP_DEFAULT_FCS L2CAP_CFG_FCS_USE 250 251/* Define the L2CAP disconnect result codes 252*/ 253#define L2CAP_DISC_OK 0 254#define L2CAP_DISC_TIMEOUT 0xEEEE 255 256/* Define the L2CAP info resp result codes 257*/ 258#define L2CAP_INFO_RESP_RESULT_SUCCESS 0 259#define L2CAP_INFO_RESP_RESULT_NOT_SUPPORTED 1 260 261/* Define the info-type fields of information request & response 262*/ 263#define L2CAP_CONNLESS_MTU_INFO_TYPE 0x0001 264/* Used in Information Req/Response */ 265#define L2CAP_EXTENDED_FEATURES_INFO_TYPE 0x0002 266/* Used in AMP */ 267#define L2CAP_FIXED_CHANNELS_INFO_TYPE 0x0003 268 269/* Connectionless MTU size */ 270#define L2CAP_CONNLESS_MTU_INFO_SIZE 2 271/* Extended features array size */ 272#define L2CAP_EXTENDED_FEATURES_ARRAY_SIZE 4 273/* Fixed channel array size */ 274#define L2CAP_FIXED_CHNL_ARRAY_SIZE 8 275 276/* Extended features mask bits 277*/ 278/* Retransmission Mode (Not Supported) */ 279#define L2CAP_EXTFEA_RTRANS 0x00000001 280/* Flow Control Mode (Not Supported) */ 281#define L2CAP_EXTFEA_FC 0x00000002 282#define L2CAP_EXTFEA_QOS 0x00000004 283/* Enhanced retransmission mode */ 284#define L2CAP_EXTFEA_ENH_RETRANS 0x00000008 285/* Streaming Mode */ 286#define L2CAP_EXTFEA_STREAM_MODE 0x00000010 287/* Optional FCS (if set No FCS desired) */ 288#define L2CAP_EXTFEA_NO_CRC 0x00000020 289/* Extended flow spec */ 290#define L2CAP_EXTFEA_EXT_FLOW_SPEC 0x00000040 291/* Fixed channels */ 292#define L2CAP_EXTFEA_FIXED_CHNLS 0x00000080 293/* Extended Window Size */ 294#define L2CAP_EXTFEA_EXT_WINDOW 0x00000100 295/* Unicast Connectionless Data Reception */ 296#define L2CAP_EXTFEA_UCD_RECEPTION 0x00000200 297 298/* Mask for locally supported features used in Information Response 299 * (default to none) */ 300#ifndef L2CAP_EXTFEA_SUPPORTED_MASK 301#define L2CAP_EXTFEA_SUPPORTED_MASK 0 302#endif 303 304/* Mask for LE supported features used in Information Response 305 * (default to none) */ 306#ifndef L2CAP_BLE_EXTFEA_MASK 307#define L2CAP_BLE_EXTFEA_MASK 0 308#endif 309 310/* Define a value that tells L2CAP to use the default HCI ACL buffer size */ 311#define L2CAP_INVALID_ERM_BUF_SIZE 0 312/* Define a value that tells L2CAP to use the default MPS */ 313#define L2CAP_DEFAULT_ERM_MPS 0x0000 314 315#define L2CAP_FCR_OVERHEAD 2 /* Control word */ 316#define L2CAP_FCS_LEN 2 /* FCS takes 2 bytes */ 317#define L2CAP_SDU_LEN_OVERHEAD 2 /* SDU length field is 2 bytes */ 318#define L2CAP_SDU_LEN_OFFSET 2 /* SDU length offset is 2 bytes */ 319#define L2CAP_EXT_CONTROL_OVERHEAD 4 /* Extended Control Field */ 320/* length(2), channel(2), control(4), SDU length(2) FCS(2) */ 321#define L2CAP_MAX_HEADER_FCS \ 322 (L2CAP_PKT_OVERHEAD + L2CAP_EXT_CONTROL_OVERHEAD + L2CAP_SDU_LEN_OVERHEAD + \ 323 L2CAP_FCS_LEN) 324 325/* To optimize this, it must be a multiple of the L2CAP PDU length AND match 326 * the 3DH5 air including the l2cap headers in each packet. To match the latter, 327 * the -5 is added. 328 * Changed it to 8087 to have same value between BTIF and L2cap layers 329 */ 330#define L2CAP_MAX_SDU_LENGTH (8080 + 26 - (L2CAP_MIN_OFFSET + 6)) 331#define L2CAP_MAX_BUF_SIZE (10240 + 24) 332 333/* Part of L2CAP_MIN_OFFSET that is not part of L2CAP 334*/ 335#define L2CAP_OFFSET_WO_L2HDR \ 336 (L2CAP_MIN_OFFSET - (L2CAP_PKT_OVERHEAD + L2CAP_FCR_OVERHEAD)) 337 338/* SAR bits in the control word 339*/ 340/* Control word to begin with for unsegmented PDU*/ 341#define L2CAP_FCR_UNSEG_SDU 0x0000 342/* ...for Starting PDU of a semented SDU */ 343#define L2CAP_FCR_START_SDU 0x4000 344/* ...for ending PDU of a segmented SDU */ 345#define L2CAP_FCR_END_SDU 0x8000 346/* ...for continuation PDU of a segmented SDU */ 347#define L2CAP_FCR_CONT_SDU 0xc000 348 349/* Supervisory frame types */ 350/* Supervisory frame - RR */ 351#define L2CAP_FCR_SUP_RR 0x0000 352/* Supervisory frame - REJ */ 353#define L2CAP_FCR_SUP_REJ 0x0001 354/* Supervisory frame - RNR */ 355#define L2CAP_FCR_SUP_RNR 0x0002 356/* Supervisory frame - SREJ */ 357#define L2CAP_FCR_SUP_SREJ 0x0003 358 359/* Mask to get the SAR bits from control word */ 360#define L2CAP_FCR_SAR_BITS 0xC000 361/* Bits to shift right to get the SAR bits from ctrl-word */ 362#define L2CAP_FCR_SAR_BITS_SHIFT 14 363 364/* Mask to check if a PDU is S-frame */ 365#define L2CAP_FCR_S_FRAME_BIT 0x0001 366/* Mask to get the req-seq from control word */ 367#define L2CAP_FCR_REQ_SEQ_BITS 0x3F00 368/* Bits to shift right to get the req-seq from ctrl-word */ 369#define L2CAP_FCR_REQ_SEQ_BITS_SHIFT 8 370/* Mask on get the tx-seq from control word */ 371#define L2CAP_FCR_TX_SEQ_BITS 0x007E 372/* Bits to shift right to get the tx-seq from ctrl-word */ 373#define L2CAP_FCR_TX_SEQ_BITS_SHIFT 1 374 375/* F-bit in the control word (Sup and I frames) */ 376#define L2CAP_FCR_F_BIT 0x0080 377/* P-bit in the control word (Sup frames only) */ 378#define L2CAP_FCR_P_BIT 0x0010 379 380#define L2CAP_FCR_F_BIT_SHIFT 7 381#define L2CAP_FCR_P_BIT_SHIFT 4 382 383/* Mask to get the segmentation bits from ctrl-word */ 384#define L2CAP_FCR_SEG_BITS 0xC000 385/* Bits to shift right to get the S-bits from ctrl-word */ 386#define L2CAP_FCR_SUP_SHIFT 2 387/* Mask to get the supervisory bits from ctrl-word */ 388#define L2CAP_FCR_SUP_BITS 0x000C 389 390/* Initial state of the CRC register */ 391#define L2CAP_FCR_INIT_CRC 0 392/* Mask for sequence numbers (range 0 - 63) */ 393#define L2CAP_FCR_SEQ_MODULO 0x3F 394 395#endif 396