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 /**************************************************************************** 20 * 21 * This file contains definitions for the RFCOMM protocol 22 * 23 ****************************************************************************/ 24 25 #ifndef RFCDEFS_H 26 #define RFCDEFS_H 27 28 #define PORT_MAX_RFC_PORTS 31 29 30 /* 31 ** If nothing is negotiated MTU should be 127 32 */ 33 #define RFCOMM_DEFAULT_MTU 127 34 35 /* 36 ** Define used by RFCOMM TS frame types 37 */ 38 #define RFCOMM_SABME 0x2F 39 #define RFCOMM_UA 0x63 40 #define RFCOMM_DM 0x0F 41 #define RFCOMM_DISC 0x43 42 #define RFCOMM_UIH 0xEF 43 44 /* 45 ** Defenitions for the TS control frames 46 */ 47 #define RFCOMM_CTRL_FRAME_LEN 3 48 #define RFCOMM_MIN_OFFSET 5 /* ctrl 2 , len 1 or 2 bytes, credit 1 byte */ 49 #define RFCOMM_DATA_OVERHEAD (RFCOMM_MIN_OFFSET + 1) /* add 1 for checksum */ 50 51 #define RFCOMM_EA 1 52 #define RFCOMM_EA_MASK 0x01 53 #define RFCOMM_CR_MASK 0x02 54 #define RFCOMM_SHIFT_CR 1 55 #define RFCOMM_SHIFT_DLCI 2 56 #define RFCOMM_SHIFT_DLCI2 6 57 #define RFCOMM_PF 0x10 58 #define RFCOMM_PF_MASK 0x10 59 #define RFCOMM_PF_OFFSET 4 60 #define RFCOMM_SHIFT_LENGTH1 1 61 #define RFCOMM_SHIFT_LENGTH2 7 62 #define RFCOMM_SHIFT_MX_CTRL_TYPE 2 63 64 #define RFCOMM_INITIATOR_CMD 1 65 #define RFCOMM_INITIATOR_RSP 0 66 #define RFCOMM_RESPONDER_CMD 0 67 #define RFCOMM_RESPONDER_RSP 1 68 69 #define RFCOMM_PARSE_CTRL_FIELD(ea, cr, dlci, p_data) \ 70 { \ 71 ea = *p_data & RFCOMM_EA; \ 72 cr = (*p_data & RFCOMM_CR_MASK) >> RFCOMM_SHIFT_CR; \ 73 dlci = *p_data++ >> RFCOMM_SHIFT_DLCI; \ 74 if (!ea) dlci += *p_data++ << RFCOMM_SHIFT_DLCI2; \ 75 } 76 77 #define RFCOMM_FORMAT_CTRL_FIELD(p_data, ea, cr, dlci) \ 78 *p_data++ = ea | cr | (dlci << RFCOMM_SHIFT_DLCI) 79 80 #define RFCOMM_PARSE_TYPE_FIELD(type, pf, p_data) \ 81 { \ 82 type = *p_data & ~RFCOMM_PF_MASK; \ 83 pf = (*p_data++ & RFCOMM_PF_MASK) >> RFCOMM_PF_OFFSET;\ 84 } 85 86 #define RFCOMM_FORMAT_TYPE_FIELD(p_data, type, pf) \ 87 *p_data++ = (type | (pf << RFCOMM_PF_OFFSET)) \ 88 { \ 89 type = *p_data & ~RFCOMM_PF_MASK; \ 90 pf = (*p_data++ & RFCOMM_PF_MASK) >> RFCOMM_PF_OFFSET;\ 91 } 92 93 #define RFCOMM_PARSE_LEN_FIELD(ea, length, p_data) \ 94 { \ 95 ea = (*p_data & RFCOMM_EA); \ 96 length = (*p_data++ >> RFCOMM_SHIFT_LENGTH1); \ 97 if (!ea) length += (*p_data++ << RFCOMM_SHIFT_LENGTH2); \ 98 } 99 100 #define RFCOMM_FRAME_IS_CMD(initiator, cr) \ 101 (( (initiator) && !(cr)) || (!(initiator) && (cr))) 102 103 #define RFCOMM_FRAME_IS_RSP(initiator, cr) \ 104 (( (initiator) && (cr)) || (!(initiator) && !(cr))) 105 106 #define RFCOMM_CR(initiator, is_command) \ 107 (( ( (initiator) && (is_command)) \ 108 || (!(initiator) && !(is_command))) << 1) 109 110 #define RFCOMM_I_CR(is_command) ((is_command) ? 0x02 : 0x00) 111 112 #define RFCOMM_MAX_DLCI 61 113 114 #define RFCOMM_VALID_DLCI(dlci) \ 115 (((dlci) == 0) || (((dlci) >= 2) && ((dlci) <= RFCOMM_MAX_DLCI))) 116 117 118 /* Port Negotiation (PN) */ 119 #define RFCOMM_PN_DLCI_MASK 0x3F 120 121 #define RFCOMM_PN_FRAM_TYPE_UIH 0x00 122 #define RFCOMM_PN_FRAME_TYPE_MASK 0x0F 123 124 #define RFCOMM_PN_CONV_LAYER_MASK 0xF0 125 #define RFCOMM_PN_CONV_LAYER_TYPE_1 0 126 #define RFCOMM_PN_CONV_LAYER_CBFC_I 0xF0 127 #define RFCOMM_PN_CONV_LAYER_CBFC_R 0xE0 128 129 #define RFCOMM_PN_PRIORITY_MASK 0x3F 130 #define RFCOMM_PN_PRIORITY_0 0 131 132 #define RFCOMM_PN_K_MASK 0x07 133 134 #define RFCOMM_T1_DSEC 0 /* None negotiable in RFCOMM */ 135 #define RFCOMM_N2 0 /* Number of retransmissions */ 136 #define RFCOMM_K 0 /* Window size */ 137 #define RFCOMM_K_MAX 7 /* Max value of K for credit based flow control */ 138 139 #define RFCOMM_MSC_FC 0x02 /* Flow control*/ 140 #define RFCOMM_MSC_RTC 0x04 /* Ready to communicate*/ 141 #define RFCOMM_MSC_RTR 0x08 /* Ready to receive*/ 142 #define RFCOMM_MSC_IC 0x40 /* Incomming call indicator*/ 143 #define RFCOMM_MSC_DV 0x80 /* Data Valid*/ 144 145 #define RFCOMM_MSC_SHIFT_BREAK 4 146 #define RFCOMM_MSC_BREAK_MASK 0xF0 147 #define RFCOMM_MSC_BREAK_PRESENT_MASK 0x02 148 149 #define RFCOMM_BAUD_RATE_2400 0x00 150 #define RFCOMM_BAUD_RATE_4800 0x01 151 #define RFCOMM_BAUD_RATE_7200 0x02 152 #define RFCOMM_BAUD_RATE_9600 0x03 153 #define RFCOMM_BAUD_RATE_19200 0x04 154 #define RFCOMM_BAUD_RATE_38400 0x05 155 #define RFCOMM_BAUD_RATE_57600 0x06 156 #define RFCOMM_BAUD_RATE_115200 0x07 157 #define RFCOMM_BAUD_RATE_230400 0x08 158 159 #define RFCOMM_5_BITS 0x00 160 #define RFCOMM_6_BITS 0x01 161 #define RFCOMM_7_BITS 0x02 162 #define RFCOMM_8_BITS 0x03 163 164 #define RFCOMM_RPN_BITS_MASK 0x03 165 #define RFCOMM_RPN_BITS_SHIFT 0 166 167 #define RFCOMM_ONESTOPBIT 0x00 168 #define RFCOMM_ONE5STOPBITS 0x01 169 170 #define RFCOMM_RPN_STOP_BITS_MASK 0x01 171 #define RFCOMM_RPN_STOP_BITS_SHIFT 2 172 173 #define RFCOMM_PARITY_NO 0x00 174 #define RFCOMM_PARITY_YES 0x01 175 #define RFCOMM_RPN_PARITY_MASK 0x01 176 #define RFCOMM_RPN_PARITY_SHIFT 3 177 178 #define RFCOMM_ODD_PARITY 0x00 179 #define RFCOMM_EVEN_PARITY 0x01 180 #define RFCOMM_MARK_PARITY 0x02 181 #define RFCOMM_SPACE_PARITY 0x03 182 183 #define RFCOMM_RPN_PARITY_TYPE_MASK 0x03 184 #define RFCOMM_RPN_PARITY_TYPE_SHIFT 4 185 186 #define RFCOMM_FC_OFF 0x00 187 #define RFCOMM_FC_XONXOFF_ON_INPUT 0x01 188 #define RFCOMM_FC_XONXOFF_ON_OUTPUT 0x02 189 #define RFCOMM_FC_RTR_ON_INPUT 0x04 190 #define RFCOMM_FC_RTR_ON_OUTPUT 0x08 191 #define RFCOMM_FC_RTC_ON_INPUT 0x10 192 #define RFCOMM_FC_RTC_ON_OUTPUT 0x20 193 #define RFCOMM_FC_MASK 0x3F 194 195 #define RFCOMM_RPN_PM_BIT_RATE 0x0001 196 #define RFCOMM_RPN_PM_DATA_BITS 0x0002 197 #define RFCOMM_RPN_PM_STOP_BITS 0x0004 198 #define RFCOMM_RPN_PM_PARITY 0x0008 199 #define RFCOMM_RPN_PM_PARITY_TYPE 0x0010 200 #define RFCOMM_RPN_PM_XON_CHAR 0x0020 201 #define RFCOMM_RPN_PM_XOFF_CHAR 0x0040 202 #define RFCOMM_RPN_PM_XONXOFF_ON_INPUT 0x0100 203 #define RFCOMM_RPN_PM_XONXOFF_ON_OUTPUT 0x0200 204 #define RFCOMM_RPN_PM_RTR_ON_INPUT 0x0400 205 #define RFCOMM_RPN_PM_RTR_ON_OUTPUT 0x0800 206 #define RFCOMM_RPN_PM_RTC_ON_INPUT 0x1000 207 #define RFCOMM_RPN_PM_RTC_ON_OUTPUT 0x2000 208 #define RFCOMM_RPN_PM_MASK 0x3F7F 209 210 #define RFCOMM_RLS_ERROR 0x01 211 #define RFCOMM_RLS_OVERRUN 0x02 212 #define RFCOMM_RLS_PARITY 0x04 213 #define RFCOMM_RLS_FRAMING 0x08 214 215 /* Multiplexor channel uses DLCI 0 */ 216 #define RFCOMM_MX_DLCI 0 217 218 /* 219 ** Define RFCOMM Multiplexer message types 220 */ 221 #define RFCOMM_MX_PN 0x80 222 #define RFCOMM_MX_PN_LEN 8 223 224 #define RFCOMM_MX_CLD 0xC0 225 #define RFCOMM_MX_CLD_LEN 0 226 227 #define RFCOMM_MX_TEST 0x20 228 229 #define RFCOMM_MX_FCON 0xA0 230 #define RFCOMM_MX_FCON_LEN 0 231 232 #define RFCOMM_MX_FCOFF 0x60 233 #define RFCOMM_MX_FCOFF_LEN 0 234 235 #define RFCOMM_MX_MSC 0xE0 236 #define RFCOMM_MX_MSC_LEN_NO_BREAK 2 237 #define RFCOMM_MX_MSC_LEN_WITH_BREAK 3 238 239 #define RFCOMM_MX_NSC 0x10 240 #define RFCOMM_MX_NSC_LEN 1 241 242 #define RFCOMM_MX_RPN 0x90 243 #define RFCOMM_MX_RPN_REQ_LEN 1 244 #define RFCOMM_MX_RPN_LEN 8 245 246 #define RFCOMM_MX_RLS 0x50 247 #define RFCOMM_MX_RLS_LEN 2 248 #endif 249