1 /****************************************************************************** 2 * 3 * Copyright 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 (type) = *(p_data) & ~RFCOMM_PF_MASK; \ 89 (pf) = (*(p_data)++ & RFCOMM_PF_MASK) >> RFCOMM_PF_OFFSET; \ 90 } 91 92 #define RFCOMM_PARSE_LEN_FIELD(ea, length, p_data) \ 93 { \ 94 (ea) = (*(p_data)&RFCOMM_EA); \ 95 (length) = (*(p_data)++ >> RFCOMM_SHIFT_LENGTH1); \ 96 if (!(ea)) (length) += (*(p_data)++ << RFCOMM_SHIFT_LENGTH2); \ 97 } 98 99 #define RFCOMM_FRAME_IS_CMD(initiator, cr) \ 100 (((initiator) && !(cr)) || (!(initiator) && (cr))) 101 102 #define RFCOMM_FRAME_IS_RSP(initiator, cr) \ 103 (((initiator) && (cr)) || (!(initiator) && !(cr))) 104 105 #define RFCOMM_CR(initiator, is_command) \ 106 ((((initiator) && (is_command)) || (!(initiator) && !(is_command))) << 1) 107 108 #define RFCOMM_I_CR(is_command) ((is_command) ? 0x02 : 0x00) 109 110 #define RFCOMM_MAX_DLCI 61 111 112 #define RFCOMM_VALID_DLCI(dlci) \ 113 (((dlci) == 0) || (((dlci) >= 2) && ((dlci) <= RFCOMM_MAX_DLCI))) 114 115 /* Port Negotiation (PN) */ 116 #define RFCOMM_PN_DLCI_MASK 0x3F 117 118 #define RFCOMM_PN_FRAM_TYPE_UIH 0x00 119 #define RFCOMM_PN_FRAME_TYPE_MASK 0x0F 120 121 #define RFCOMM_PN_CONV_LAYER_MASK 0xF0 122 #define RFCOMM_PN_CONV_LAYER_TYPE_1 0 123 #define RFCOMM_PN_CONV_LAYER_CBFC_I 0xF0 124 #define RFCOMM_PN_CONV_LAYER_CBFC_R 0xE0 125 126 #define RFCOMM_PN_PRIORITY_MASK 0x3F 127 #define RFCOMM_PN_PRIORITY_0 0 128 129 #define RFCOMM_PN_K_MASK 0x07 130 131 #define RFCOMM_T1_DSEC 0 /* None negotiable in RFCOMM */ 132 #define RFCOMM_N2 0 /* Number of retransmissions */ 133 #define RFCOMM_K 0 /* Window size */ 134 #define RFCOMM_K_MAX 7 /* Max value of K for credit based flow control */ 135 136 #define RFCOMM_MSC_FC 0x02 /* Flow control*/ 137 #define RFCOMM_MSC_RTC 0x04 /* Ready to communicate*/ 138 #define RFCOMM_MSC_RTR 0x08 /* Ready to receive*/ 139 #define RFCOMM_MSC_IC 0x40 /* Incomming call indicator*/ 140 #define RFCOMM_MSC_DV 0x80 /* Data Valid*/ 141 142 #define RFCOMM_MSC_SHIFT_BREAK 4 143 #define RFCOMM_MSC_BREAK_MASK 0xF0 144 #define RFCOMM_MSC_BREAK_PRESENT_MASK 0x02 145 146 #define RFCOMM_BAUD_RATE_2400 0x00 147 #define RFCOMM_BAUD_RATE_4800 0x01 148 #define RFCOMM_BAUD_RATE_7200 0x02 149 #define RFCOMM_BAUD_RATE_9600 0x03 150 #define RFCOMM_BAUD_RATE_19200 0x04 151 #define RFCOMM_BAUD_RATE_38400 0x05 152 #define RFCOMM_BAUD_RATE_57600 0x06 153 #define RFCOMM_BAUD_RATE_115200 0x07 154 #define RFCOMM_BAUD_RATE_230400 0x08 155 156 #define RFCOMM_5_BITS 0x00 157 #define RFCOMM_6_BITS 0x01 158 #define RFCOMM_7_BITS 0x02 159 #define RFCOMM_8_BITS 0x03 160 161 #define RFCOMM_RPN_BITS_MASK 0x03 162 #define RFCOMM_RPN_BITS_SHIFT 0 163 164 #define RFCOMM_ONESTOPBIT 0x00 165 #define RFCOMM_ONE5STOPBITS 0x01 166 167 #define RFCOMM_RPN_STOP_BITS_MASK 0x01 168 #define RFCOMM_RPN_STOP_BITS_SHIFT 2 169 170 #define RFCOMM_PARITY_NO 0x00 171 #define RFCOMM_PARITY_YES 0x01 172 #define RFCOMM_RPN_PARITY_MASK 0x01 173 #define RFCOMM_RPN_PARITY_SHIFT 3 174 175 #define RFCOMM_ODD_PARITY 0x00 176 #define RFCOMM_EVEN_PARITY 0x01 177 #define RFCOMM_MARK_PARITY 0x02 178 #define RFCOMM_SPACE_PARITY 0x03 179 180 #define RFCOMM_RPN_PARITY_TYPE_MASK 0x03 181 #define RFCOMM_RPN_PARITY_TYPE_SHIFT 4 182 183 #define RFCOMM_FC_OFF 0x00 184 #define RFCOMM_FC_XONXOFF_ON_INPUT 0x01 185 #define RFCOMM_FC_XONXOFF_ON_OUTPUT 0x02 186 #define RFCOMM_FC_RTR_ON_INPUT 0x04 187 #define RFCOMM_FC_RTR_ON_OUTPUT 0x08 188 #define RFCOMM_FC_RTC_ON_INPUT 0x10 189 #define RFCOMM_FC_RTC_ON_OUTPUT 0x20 190 #define RFCOMM_FC_MASK 0x3F 191 192 #define RFCOMM_RPN_PM_BIT_RATE 0x0001 193 #define RFCOMM_RPN_PM_DATA_BITS 0x0002 194 #define RFCOMM_RPN_PM_STOP_BITS 0x0004 195 #define RFCOMM_RPN_PM_PARITY 0x0008 196 #define RFCOMM_RPN_PM_PARITY_TYPE 0x0010 197 #define RFCOMM_RPN_PM_XON_CHAR 0x0020 198 #define RFCOMM_RPN_PM_XOFF_CHAR 0x0040 199 #define RFCOMM_RPN_PM_XONXOFF_ON_INPUT 0x0100 200 #define RFCOMM_RPN_PM_XONXOFF_ON_OUTPUT 0x0200 201 #define RFCOMM_RPN_PM_RTR_ON_INPUT 0x0400 202 #define RFCOMM_RPN_PM_RTR_ON_OUTPUT 0x0800 203 #define RFCOMM_RPN_PM_RTC_ON_INPUT 0x1000 204 #define RFCOMM_RPN_PM_RTC_ON_OUTPUT 0x2000 205 #define RFCOMM_RPN_PM_MASK 0x3F7F 206 207 #define RFCOMM_RLS_ERROR 0x01 208 #define RFCOMM_RLS_OVERRUN 0x02 209 #define RFCOMM_RLS_PARITY 0x04 210 #define RFCOMM_RLS_FRAMING 0x08 211 212 /* Multiplexor channel uses DLCI 0 */ 213 #define RFCOMM_MX_DLCI 0 214 215 /* 216 * Define RFCOMM Multiplexer message types 217 */ 218 #define RFCOMM_MX_PN 0x80 219 #define RFCOMM_MX_PN_LEN 8 220 221 #define RFCOMM_MX_CLD 0xC0 222 #define RFCOMM_MX_CLD_LEN 0 223 224 #define RFCOMM_MX_TEST 0x20 225 226 #define RFCOMM_MX_FCON 0xA0 227 #define RFCOMM_MX_FCON_LEN 0 228 229 #define RFCOMM_MX_FCOFF 0x60 230 #define RFCOMM_MX_FCOFF_LEN 0 231 232 #define RFCOMM_MX_MSC 0xE0 233 #define RFCOMM_MX_MSC_LEN_NO_BREAK 2 234 #define RFCOMM_MX_MSC_LEN_WITH_BREAK 3 235 236 #define RFCOMM_MX_NSC 0x10 237 #define RFCOMM_MX_NSC_LEN 1 238 239 #define RFCOMM_MX_RPN 0x90 240 #define RFCOMM_MX_RPN_REQ_LEN 1 241 #define RFCOMM_MX_RPN_LEN 8 242 243 #define RFCOMM_MX_RLS 0x50 244 #define RFCOMM_MX_RLS_LEN 2 245 #endif 246
