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 44 45 /* Define some packet and header lengths 46 */ 47 #define L2CAP_PKT_OVERHEAD 4 /* Length and CID */ 48 #define L2CAP_CMD_OVERHEAD 4 /* Cmd code, Id and length */ 49 #define L2CAP_CMD_REJECT_LEN 2 /* Reason (data is optional) */ 50 #define L2CAP_CONN_REQ_LEN 4 /* PSM and source CID */ 51 #define L2CAP_CONN_RSP_LEN 8 /* Dest CID, source CID, reason, status */ 52 #define L2CAP_CONFIG_REQ_LEN 4 /* Dest CID, flags (data is optional) */ 53 #define L2CAP_CONFIG_RSP_LEN 6 /* Dest CID, flags, result,data optional*/ 54 #define L2CAP_DISC_REQ_LEN 4 /* Dest CID, source CID */ 55 #define L2CAP_DISC_RSP_LEN 4 /* Dest CID, source CID */ 56 #define L2CAP_ECHO_REQ_LEN 0 /* Data is optional */ 57 #define L2CAP_ECHO_RSP_LEN 0 /* Data is optional */ 58 #define L2CAP_INFO_REQ_LEN 2 /* Info type */ 59 #define L2CAP_INFO_RSP_LEN 4 /* Info type, result (data is optional) */ 60 #define L2CAP_BCST_OVERHEAD 2 /* Additional broadcast packet overhead */ 61 #define L2CAP_UCD_OVERHEAD 2 /* Additional connectionless packet overhead */ 62 63 #define L2CAP_AMP_CONN_REQ_LEN 5 /* PSM, CID, and remote controller ID */ 64 #define L2CAP_AMP_MOVE_REQ_LEN 3 /* CID and remote controller ID */ 65 #define L2CAP_AMP_MOVE_RSP_LEN 4 /* CID and result */ 66 #define L2CAP_AMP_MOVE_CFM_LEN 4 /* CID and result */ 67 #define L2CAP_AMP_MOVE_CFM_RSP_LEN 2 /* CID */ 68 69 #define L2CAP_CMD_BLE_UPD_REQ_LEN 8 /* Min and max interval, latency, tout */ 70 #define L2CAP_CMD_BLE_UPD_RSP_LEN 2 /* Result */ 71 72 73 /* Define the packet boundary flags 74 */ 75 #if (L2CAP_NON_FLUSHABLE_PB_INCLUDED == TRUE) 76 #define L2CAP_PKT_START_FLUSHABLE 2 77 #define L2CAP_PKT_START_NON_FLUSHABLE 0 78 #endif 79 #define L2CAP_COMPLETE_AMP_PKT 3 /* complete L2CAP packet on AMP HCI */ 80 #define L2CAP_PKT_START 2 81 #define L2CAP_PKT_CONTINUE 1 82 #define L2CAP_MASK_FLAG 0x0FFF 83 #define L2CAP_PKT_TYPE_SHIFT 12 84 #define L2CAP_PKT_TYPE_MASK 3 85 86 87 /* Define the L2CAP connection result codes 88 */ 89 #define L2CAP_CONN_OK 0 90 #define L2CAP_CONN_PENDING 1 91 #define L2CAP_CONN_NO_PSM 2 92 #define L2CAP_CONN_SECURITY_BLOCK 3 93 #define L2CAP_CONN_NO_RESOURCES 4 94 #define L2CAP_CONN_BAD_CTLR_ID 5 /* AMP related */ 95 #define L2CAP_CONN_TIMEOUT 0xEEEE 96 #define L2CAP_CONN_AMP_FAILED 254 97 #define L2CAP_CONN_NO_LINK 255 /* Add a couple of our own for internal use */ 98 #define L2CAP_CONN_CANCEL 256 /* L2CAP connection cancelled */ 99 100 101 /* Define L2CAP Move Channel Response result codes 102 */ 103 #define L2CAP_MOVE_OK 0 104 #define L2CAP_MOVE_PENDING 1 105 #define L2CAP_MOVE_CTRL_ID_NOT_SUPPORT 2 106 #define L2CAP_MOVE_SAME_CTRLR_ID 3 107 #define L2CAP_MOVE_CONFIG_NOT_SUPPORTED 4 108 #define L2CAP_MOVE_CHAN_COLLISION 5 109 #define L2CAP_MOVE_NOT_ALLOWED 6 110 111 112 /* Define L2CAP Move Channel Confirmation result codes 113 */ 114 #define L2CAP_MOVE_CFM_OK 0 115 #define L2CAP_MOVE_CFM_REFUSED 1 116 117 118 /* Define the L2CAP command reject reason codes 119 */ 120 #define L2CAP_CMD_REJ_NOT_UNDERSTOOD 0 121 #define L2CAP_CMD_REJ_MTU_EXCEEDED 1 122 #define L2CAP_CMD_REJ_INVALID_CID 2 123 124 125 /* L2CAP Predefined CIDs 126 */ 127 #define L2CAP_SIGNALLING_CID 1 128 #define L2CAP_CONNECTIONLESS_CID 2 129 #define L2CAP_AMP_CID 3 130 #define L2CAP_ATT_CID 4 131 #define L2CAP_BLE_SIGNALLING_CID 5 132 #define L2CAP_SMP_CID 6 133 #define L2CAP_SMP_BR_CID 7 134 #define L2CAP_AMP_TEST_CID 0x003F 135 #define L2CAP_BASE_APPL_CID 0x0040 136 #define L2CAP_BLE_CONN_MAX_CID 0x007F 137 138 /* Fixed Channels mask bits */ 139 140 /* Signal channel supported (Mandatory) */ 141 #define L2CAP_FIXED_CHNL_SIG_BIT (1 << L2CAP_SIGNALLING_CID) 142 143 /* Connectionless reception */ 144 #define L2CAP_FIXED_CHNL_CNCTLESS_BIT (1 << L2CAP_CONNECTIONLESS_CID) 145 146 /* AMP Manager supported */ 147 #define L2CAP_FIXED_CHNL_AMP_BIT (1 << L2CAP_AMP_CID) 148 149 /* Attribute protocol supported */ 150 #define L2CAP_FIXED_CHNL_ATT_BIT (1 << L2CAP_ATT_CID) 151 152 /* BLE Signalling supported */ 153 #define L2CAP_FIXED_CHNL_BLE_SIG_BIT (1 << L2CAP_BLE_SIGNALLING_CID) 154 155 /* BLE Security Mgr supported */ 156 #define L2CAP_FIXED_CHNL_SMP_BIT (1 << L2CAP_SMP_CID) 157 158 /* Security Mgr over BR supported */ 159 #define L2CAP_FIXED_CHNL_SMP_BR_BIT (1 << L2CAP_SMP_BR_CID) 160 161 162 163 /* Define the L2CAP configuration result codes 164 */ 165 #define L2CAP_CFG_OK 0 166 #define L2CAP_CFG_UNACCEPTABLE_PARAMS 1 167 #define L2CAP_CFG_FAILED_NO_REASON 2 168 #define L2CAP_CFG_UNKNOWN_OPTIONS 3 169 #define L2CAP_CFG_PENDING 4 170 #define L2CAP_CFG_FLOW_SPEC_REJECTED 5 171 172 173 /* Define the L2CAP configuration option types 174 */ 175 #define L2CAP_CFG_TYPE_MTU 0x01 176 #define L2CAP_CFG_TYPE_FLUSH_TOUT 0x02 177 #define L2CAP_CFG_TYPE_QOS 0x03 178 #define L2CAP_CFG_TYPE_FCR 0x04 179 #define L2CAP_CFG_TYPE_FCS 0x05 180 #define L2CAP_CFG_TYPE_EXT_FLOW 0x06 181 #define L2CAP_CFG_TYPE_EXT_WIN_SIZE 0x07 182 183 #define L2CAP_CFG_MTU_OPTION_LEN 2 /* MTU option length */ 184 #define L2CAP_CFG_FLUSH_OPTION_LEN 2 /* Flush option len */ 185 #define L2CAP_CFG_QOS_OPTION_LEN 22 /* QOS option length */ 186 #define L2CAP_CFG_FCR_OPTION_LEN 9 /* FCR option length */ 187 #define L2CAP_CFG_FCS_OPTION_LEN 1 /* FCR option length */ 188 #define L2CAP_CFG_EXT_FLOW_OPTION_LEN 16 /* Extended Flow Spec */ 189 #define L2CAP_CFG_EXT_WIN_SIZE_LEN 2 /* Ext window size length */ 190 #define L2CAP_CFG_OPTION_OVERHEAD 2 /* Type and length */ 191 192 /* Configuration Cmd/Rsp Flags mask 193 */ 194 #define L2CAP_CFG_FLAGS_MASK_CONT 0x0001 /* Flags mask: Continuation */ 195 196 /* FCS Check Option values 197 */ 198 #define L2CAP_CFG_FCS_BYPASS 0 /* Bypass the FCS in streaming or ERTM modes */ 199 #define L2CAP_CFG_FCS_USE 1 /* Use the FCS in streaming or ERTM modes [default] */ 200 201 /* Default values for configuration 202 */ 203 #define L2CAP_NO_AUTOMATIC_FLUSH 0xFFFF 204 #define L2CAP_NO_RETRANSMISSION 0x0001 205 206 #define L2CAP_DEFAULT_MTU (672) 207 #define L2CAP_DEFAULT_FLUSH_TO L2CAP_NO_AUTOMATIC_FLUSH 208 #define L2CAP_DEFAULT_SERV_TYPE 1 209 #define L2CAP_DEFAULT_TOKEN_RATE 0 210 #define L2CAP_DEFAULT_BUCKET_SIZE 0 211 #define L2CAP_DEFAULT_PEAK_BANDWIDTH 0 212 #define L2CAP_DEFAULT_LATENCY 0xFFFFFFFF 213 #define L2CAP_DEFAULT_DELAY 0xFFFFFFFF 214 #define L2CAP_DEFAULT_FCS L2CAP_CFG_FCS_USE 215 216 217 /* Define the L2CAP disconnect result codes 218 */ 219 #define L2CAP_DISC_OK 0 220 #define L2CAP_DISC_TIMEOUT 0xEEEE 221 222 /* Define the L2CAP info resp result codes 223 */ 224 #define L2CAP_INFO_RESP_RESULT_SUCCESS 0 225 #define L2CAP_INFO_RESP_RESULT_NOT_SUPPORTED 1 226 227 /* Define the info-type fields of information request & response 228 */ 229 #define L2CAP_CONNLESS_MTU_INFO_TYPE 0x0001 230 #define L2CAP_EXTENDED_FEATURES_INFO_TYPE 0x0002 /* Used in Information Req/Response */ 231 #define L2CAP_FIXED_CHANNELS_INFO_TYPE 0x0003 /* Used in AMP */ 232 233 #define L2CAP_CONNLESS_MTU_INFO_SIZE 2 /* Connectionless MTU size */ 234 #define L2CAP_EXTENDED_FEATURES_ARRAY_SIZE 4 /* Extended features array size */ 235 #define L2CAP_FIXED_CHNL_ARRAY_SIZE 8 /* Fixed channel array size */ 236 237 /* Extended features mask bits 238 */ 239 #define L2CAP_EXTFEA_RTRANS 0x00000001 /* Retransmission Mode (Not Supported) */ 240 #define L2CAP_EXTFEA_FC 0x00000002 /* Flow Control Mode (Not Supported) */ 241 #define L2CAP_EXTFEA_QOS 0x00000004 242 #define L2CAP_EXTFEA_ENH_RETRANS 0x00000008 /* Enhanced retransmission mode */ 243 #define L2CAP_EXTFEA_STREAM_MODE 0x00000010 /* Streaming Mode */ 244 #define L2CAP_EXTFEA_NO_CRC 0x00000020 /* Optional FCS (if set No FCS desired) */ 245 #define L2CAP_EXTFEA_EXT_FLOW_SPEC 0x00000040 /* Extended flow spec */ 246 #define L2CAP_EXTFEA_FIXED_CHNLS 0x00000080 /* Fixed channels */ 247 #define L2CAP_EXTFEA_EXT_WINDOW 0x00000100 /* Extended Window Size */ 248 #define L2CAP_EXTFEA_UCD_RECEPTION 0x00000200 /* Unicast Connectionless Data Reception */ 249 250 /* Mask for locally supported features used in Information Response (default to none) */ 251 #ifndef L2CAP_EXTFEA_SUPPORTED_MASK 252 #define L2CAP_EXTFEA_SUPPORTED_MASK 0 253 #endif 254 255 /* Mask for LE supported features used in Information Response (default to none) */ 256 #ifndef L2CAP_BLE_EXTFEA_MASK 257 #define L2CAP_BLE_EXTFEA_MASK 0 258 #endif 259 260 /* Define a value that tells L2CAP to use the default HCI ACL buffer pool */ 261 #define L2CAP_DEFAULT_ERM_POOL_ID 0xFF 262 /* Define a value that tells L2CAP to use the default MPS */ 263 #define L2CAP_DEFAULT_ERM_MPS 0x0000 264 265 #define L2CAP_FCR_OVERHEAD 2 /* Control word */ 266 #define L2CAP_FCS_LEN 2 /* FCS takes 2 bytes */ 267 #define L2CAP_SDU_LEN_OVERHEAD 2 /* SDU length field is 2 bytes */ 268 #define L2CAP_SDU_LEN_OFFSET 2 /* SDU length offset is 2 bytes */ 269 #define L2CAP_EXT_CONTROL_OVERHEAD 4 /* Extended Control Field */ 270 #define L2CAP_MAX_HEADER_FCS (L2CAP_PKT_OVERHEAD + L2CAP_EXT_CONTROL_OVERHEAD + L2CAP_SDU_LEN_OVERHEAD + L2CAP_FCS_LEN) 271 /* length(2), channel(2), control(4), SDU length(2) FCS(2) */ 272 /* To optimize this, it must be a multiplum of the L2CAP PDU length AND match the 3DH5 air 273 * including the l2cap headers in each packet - to match the latter - the -5 is added 274 */ 275 #define L2CAP_MAX_SDU_LENGTH (GKI_BUF4_SIZE - (L2CAP_MIN_OFFSET + L2CAP_MAX_HEADER_FCS) -5) 276 277 /* Part of L2CAP_MIN_OFFSET that is not part of L2CAP 278 */ 279 #define L2CAP_OFFSET_WO_L2HDR (L2CAP_MIN_OFFSET-(L2CAP_PKT_OVERHEAD+L2CAP_FCR_OVERHEAD)) 280 281 /* SAR bits in the control word 282 */ 283 #define L2CAP_FCR_UNSEG_SDU 0x0000 /* Control word to begin with for unsegmented PDU*/ 284 #define L2CAP_FCR_START_SDU 0x4000 /* ...for Starting PDU of a semented SDU */ 285 #define L2CAP_FCR_END_SDU 0x8000 /* ...for ending PDU of a segmented SDU */ 286 #define L2CAP_FCR_CONT_SDU 0xc000 /* ...for continuation PDU of a segmented SDU */ 287 288 /* Supervisory frame types 289 */ 290 #define L2CAP_FCR_SUP_RR 0x0000 /* Supervisory frame - RR */ 291 #define L2CAP_FCR_SUP_REJ 0x0001 /* Supervisory frame - REJ */ 292 #define L2CAP_FCR_SUP_RNR 0x0002 /* Supervisory frame - RNR */ 293 #define L2CAP_FCR_SUP_SREJ 0x0003 /* Supervisory frame - SREJ */ 294 295 #define L2CAP_FCR_SAR_BITS 0xC000 /* Mask to get the SAR bits from control word */ 296 #define L2CAP_FCR_SAR_BITS_SHIFT 14 /* Bits to shift right to get the SAR bits from ctrl-word */ 297 298 #define L2CAP_FCR_S_FRAME_BIT 0x0001 /* Mask to check if a PDU is S-frame */ 299 #define L2CAP_FCR_REQ_SEQ_BITS 0x3F00 /* Mask to get the req-seq from control word */ 300 #define L2CAP_FCR_REQ_SEQ_BITS_SHIFT 8 /* Bits to shift right to get the req-seq from ctrl-word */ 301 #define L2CAP_FCR_TX_SEQ_BITS 0x007E /* Mask on get the tx-seq from control word */ 302 #define L2CAP_FCR_TX_SEQ_BITS_SHIFT 1 /* Bits to shift right to get the tx-seq from ctrl-word */ 303 304 #define L2CAP_FCR_F_BIT 0x0080 /* F-bit in the control word (Sup and I frames) */ 305 #define L2CAP_FCR_P_BIT 0x0010 /* P-bit in the control word (Sup frames only) */ 306 307 #define L2CAP_FCR_F_BIT_SHIFT 7 308 #define L2CAP_FCR_P_BIT_SHIFT 4 309 310 #define L2CAP_FCR_SEG_BITS 0xC000 /* Mask to get the segmentation bits from ctrl-word */ 311 #define L2CAP_FCR_SUP_SHIFT 2 /* Bits to shift right to get the S-bits from ctrl-word */ 312 #define L2CAP_FCR_SUP_BITS 0x000C /* Mask to get the supervisory bits from ctrl-word */ 313 314 #define L2CAP_FCR_INIT_CRC 0 /* Initial state of the CRC register */ 315 #define L2CAP_FCR_SEQ_MODULO 0x3F /* Mask for sequence numbers (range 0 - 63) */ 316 317 #endif 318