1 /* 2 * QEMU model of the Xilinx Versal CANFD device. 3 * 4 * This implementation is based on the following datasheet: 5 * https://docs.xilinx.com/v/u/2.0-English/pg223-canfd 6 * 7 * Copyright (c) 2023 Advanced Micro Devices, Inc. 8 * 9 * Written-by: Vikram Garhwal <vikram.garhwal@amd.com> 10 * 11 * Based on QEMU CANFD Device emulation implemented by Jin Yang, Deniz Eren and 12 * Pavel Pisa 13 * 14 * Permission is hereby granted, free of charge, to any person obtaining a copy 15 * of this software and associated documentation files (the "Software"), to deal 16 * in the Software without restriction, including without limitation the rights 17 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 18 * copies of the Software, and to permit persons to whom the Software is 19 * furnished to do so, subject to the following conditions: 20 * 21 * The above copyright notice and this permission notice shall be included in 22 * all copies or substantial portions of the Software. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 25 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 26 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 27 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 28 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 29 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 30 * THE SOFTWARE. 31 */ 32 33 #include "qemu/osdep.h" 34 #include "hw/sysbus.h" 35 #include "hw/irq.h" 36 #include "hw/register.h" 37 #include "qapi/error.h" 38 #include "qemu/bitops.h" 39 #include "qemu/log.h" 40 #include "qemu/cutils.h" 41 #include "qemu/event_notifier.h" 42 #include "hw/qdev-properties.h" 43 #include "qom/object_interfaces.h" 44 #include "migration/vmstate.h" 45 #include "hw/net/xlnx-versal-canfd.h" 46 #include "trace.h" 47 48 REG32(SOFTWARE_RESET_REGISTER, 0x0) 49 FIELD(SOFTWARE_RESET_REGISTER, CEN, 1, 1) 50 FIELD(SOFTWARE_RESET_REGISTER, SRST, 0, 1) 51 REG32(MODE_SELECT_REGISTER, 0x4) 52 FIELD(MODE_SELECT_REGISTER, ITO, 8, 8) 53 FIELD(MODE_SELECT_REGISTER, ABR, 7, 1) 54 FIELD(MODE_SELECT_REGISTER, SBR, 6, 1) 55 FIELD(MODE_SELECT_REGISTER, DPEE, 5, 1) 56 FIELD(MODE_SELECT_REGISTER, DAR, 4, 1) 57 FIELD(MODE_SELECT_REGISTER, BRSD, 3, 1) 58 FIELD(MODE_SELECT_REGISTER, SNOOP, 2, 1) 59 FIELD(MODE_SELECT_REGISTER, LBACK, 1, 1) 60 FIELD(MODE_SELECT_REGISTER, SLEEP, 0, 1) 61 REG32(ARBITRATION_PHASE_BAUD_RATE_PRESCALER_REGISTER, 0x8) 62 FIELD(ARBITRATION_PHASE_BAUD_RATE_PRESCALER_REGISTER, BRP, 0, 8) 63 REG32(ARBITRATION_PHASE_BIT_TIMING_REGISTER, 0xc) 64 FIELD(ARBITRATION_PHASE_BIT_TIMING_REGISTER, SJW, 16, 7) 65 FIELD(ARBITRATION_PHASE_BIT_TIMING_REGISTER, TS2, 8, 7) 66 FIELD(ARBITRATION_PHASE_BIT_TIMING_REGISTER, TS1, 0, 8) 67 REG32(ERROR_COUNTER_REGISTER, 0x10) 68 FIELD(ERROR_COUNTER_REGISTER, REC, 8, 8) 69 FIELD(ERROR_COUNTER_REGISTER, TEC, 0, 8) 70 REG32(ERROR_STATUS_REGISTER, 0x14) 71 FIELD(ERROR_STATUS_REGISTER, F_BERR, 11, 1) 72 FIELD(ERROR_STATUS_REGISTER, F_STER, 10, 1) 73 FIELD(ERROR_STATUS_REGISTER, F_FMER, 9, 1) 74 FIELD(ERROR_STATUS_REGISTER, F_CRCER, 8, 1) 75 FIELD(ERROR_STATUS_REGISTER, ACKER, 4, 1) 76 FIELD(ERROR_STATUS_REGISTER, BERR, 3, 1) 77 FIELD(ERROR_STATUS_REGISTER, STER, 2, 1) 78 FIELD(ERROR_STATUS_REGISTER, FMER, 1, 1) 79 FIELD(ERROR_STATUS_REGISTER, CRCER, 0, 1) 80 REG32(STATUS_REGISTER, 0x18) 81 FIELD(STATUS_REGISTER, TDCV, 16, 7) 82 FIELD(STATUS_REGISTER, SNOOP, 12, 1) 83 FIELD(STATUS_REGISTER, BSFR_CONFIG, 10, 1) 84 FIELD(STATUS_REGISTER, PEE_CONFIG, 9, 1) 85 FIELD(STATUS_REGISTER, ESTAT, 7, 2) 86 FIELD(STATUS_REGISTER, ERRWRN, 6, 1) 87 FIELD(STATUS_REGISTER, BBSY, 5, 1) 88 FIELD(STATUS_REGISTER, BIDLE, 4, 1) 89 FIELD(STATUS_REGISTER, NORMAL, 3, 1) 90 FIELD(STATUS_REGISTER, SLEEP, 2, 1) 91 FIELD(STATUS_REGISTER, LBACK, 1, 1) 92 FIELD(STATUS_REGISTER, CONFIG, 0, 1) 93 REG32(INTERRUPT_STATUS_REGISTER, 0x1c) 94 FIELD(INTERRUPT_STATUS_REGISTER, TXEWMFLL, 31, 1) 95 FIELD(INTERRUPT_STATUS_REGISTER, TXEOFLW, 30, 1) 96 FIELD(INTERRUPT_STATUS_REGISTER, RXBOFLW_BI, 24, 6) 97 FIELD(INTERRUPT_STATUS_REGISTER, RXLRM_BI, 18, 6) 98 FIELD(INTERRUPT_STATUS_REGISTER, RXMNF, 17, 1) 99 FIELD(INTERRUPT_STATUS_REGISTER, RXFWMFLL_1, 16, 1) 100 FIELD(INTERRUPT_STATUS_REGISTER, RXFOFLW_1, 15, 1) 101 FIELD(INTERRUPT_STATUS_REGISTER, TXCRS, 14, 1) 102 FIELD(INTERRUPT_STATUS_REGISTER, TXRRS, 13, 1) 103 FIELD(INTERRUPT_STATUS_REGISTER, RXFWMFLL, 12, 1) 104 FIELD(INTERRUPT_STATUS_REGISTER, WKUP, 11, 1) 105 FIELD(INTERRUPT_STATUS_REGISTER, SLP, 10, 1) 106 FIELD(INTERRUPT_STATUS_REGISTER, BSOFF, 9, 1) 107 /* 108 * In the original HW description below bit is named as ERROR but an ERROR 109 * field name collides with a macro in Windows build. To avoid Windows build 110 * failures, the bit is renamed to ERROR_BIT. 111 */ 112 FIELD(INTERRUPT_STATUS_REGISTER, ERROR_BIT, 8, 1) 113 FIELD(INTERRUPT_STATUS_REGISTER, RXFOFLW, 6, 1) 114 FIELD(INTERRUPT_STATUS_REGISTER, TSCNT_OFLW, 5, 1) 115 FIELD(INTERRUPT_STATUS_REGISTER, RXOK, 4, 1) 116 FIELD(INTERRUPT_STATUS_REGISTER, BSFRD, 3, 1) 117 FIELD(INTERRUPT_STATUS_REGISTER, PEE, 2, 1) 118 FIELD(INTERRUPT_STATUS_REGISTER, TXOK, 1, 1) 119 FIELD(INTERRUPT_STATUS_REGISTER, ARBLST, 0, 1) 120 REG32(INTERRUPT_ENABLE_REGISTER, 0x20) 121 FIELD(INTERRUPT_ENABLE_REGISTER, ETXEWMFLL, 31, 1) 122 FIELD(INTERRUPT_ENABLE_REGISTER, ETXEOFLW, 30, 1) 123 FIELD(INTERRUPT_ENABLE_REGISTER, ERXMNF, 17, 1) 124 FIELD(INTERRUPT_ENABLE_REGISTER, ERXFWMFLL_1, 16, 1) 125 FIELD(INTERRUPT_ENABLE_REGISTER, ERXFOFLW_1, 15, 1) 126 FIELD(INTERRUPT_ENABLE_REGISTER, ETXCRS, 14, 1) 127 FIELD(INTERRUPT_ENABLE_REGISTER, ETXRRS, 13, 1) 128 FIELD(INTERRUPT_ENABLE_REGISTER, ERXFWMFLL, 12, 1) 129 FIELD(INTERRUPT_ENABLE_REGISTER, EWKUP, 11, 1) 130 FIELD(INTERRUPT_ENABLE_REGISTER, ESLP, 10, 1) 131 FIELD(INTERRUPT_ENABLE_REGISTER, EBSOFF, 9, 1) 132 FIELD(INTERRUPT_ENABLE_REGISTER, EERROR, 8, 1) 133 FIELD(INTERRUPT_ENABLE_REGISTER, ERFXOFLW, 6, 1) 134 FIELD(INTERRUPT_ENABLE_REGISTER, ETSCNT_OFLW, 5, 1) 135 FIELD(INTERRUPT_ENABLE_REGISTER, ERXOK, 4, 1) 136 FIELD(INTERRUPT_ENABLE_REGISTER, EBSFRD, 3, 1) 137 FIELD(INTERRUPT_ENABLE_REGISTER, EPEE, 2, 1) 138 FIELD(INTERRUPT_ENABLE_REGISTER, ETXOK, 1, 1) 139 FIELD(INTERRUPT_ENABLE_REGISTER, EARBLOST, 0, 1) 140 REG32(INTERRUPT_CLEAR_REGISTER, 0x24) 141 FIELD(INTERRUPT_CLEAR_REGISTER, CTXEWMFLL, 31, 1) 142 FIELD(INTERRUPT_CLEAR_REGISTER, CTXEOFLW, 30, 1) 143 FIELD(INTERRUPT_CLEAR_REGISTER, CRXMNF, 17, 1) 144 FIELD(INTERRUPT_CLEAR_REGISTER, CRXFWMFLL_1, 16, 1) 145 FIELD(INTERRUPT_CLEAR_REGISTER, CRXFOFLW_1, 15, 1) 146 FIELD(INTERRUPT_CLEAR_REGISTER, CTXCRS, 14, 1) 147 FIELD(INTERRUPT_CLEAR_REGISTER, CTXRRS, 13, 1) 148 FIELD(INTERRUPT_CLEAR_REGISTER, CRXFWMFLL, 12, 1) 149 FIELD(INTERRUPT_CLEAR_REGISTER, CWKUP, 11, 1) 150 FIELD(INTERRUPT_CLEAR_REGISTER, CSLP, 10, 1) 151 FIELD(INTERRUPT_CLEAR_REGISTER, CBSOFF, 9, 1) 152 FIELD(INTERRUPT_CLEAR_REGISTER, CERROR, 8, 1) 153 FIELD(INTERRUPT_CLEAR_REGISTER, CRFXOFLW, 6, 1) 154 FIELD(INTERRUPT_CLEAR_REGISTER, CTSCNT_OFLW, 5, 1) 155 FIELD(INTERRUPT_CLEAR_REGISTER, CRXOK, 4, 1) 156 FIELD(INTERRUPT_CLEAR_REGISTER, CBSFRD, 3, 1) 157 FIELD(INTERRUPT_CLEAR_REGISTER, CPEE, 2, 1) 158 FIELD(INTERRUPT_CLEAR_REGISTER, CTXOK, 1, 1) 159 FIELD(INTERRUPT_CLEAR_REGISTER, CARBLOST, 0, 1) 160 REG32(TIMESTAMP_REGISTER, 0x28) 161 FIELD(TIMESTAMP_REGISTER, TIMESTAMP_CNT, 16, 16) 162 FIELD(TIMESTAMP_REGISTER, CTS, 0, 1) 163 REG32(DATA_PHASE_BAUD_RATE_PRESCALER_REGISTER, 0x88) 164 FIELD(DATA_PHASE_BAUD_RATE_PRESCALER_REGISTER, TDC, 16, 1) 165 FIELD(DATA_PHASE_BAUD_RATE_PRESCALER_REGISTER, TDCOFF, 8, 6) 166 FIELD(DATA_PHASE_BAUD_RATE_PRESCALER_REGISTER, DP_BRP, 0, 8) 167 REG32(DATA_PHASE_BIT_TIMING_REGISTER, 0x8c) 168 FIELD(DATA_PHASE_BIT_TIMING_REGISTER, DP_SJW, 16, 4) 169 FIELD(DATA_PHASE_BIT_TIMING_REGISTER, DP_TS2, 8, 4) 170 FIELD(DATA_PHASE_BIT_TIMING_REGISTER, DP_TS1, 0, 5) 171 REG32(TX_BUFFER_READY_REQUEST_REGISTER, 0x90) 172 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR31, 31, 1) 173 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR30, 30, 1) 174 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR29, 29, 1) 175 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR28, 28, 1) 176 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR27, 27, 1) 177 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR26, 26, 1) 178 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR25, 25, 1) 179 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR24, 24, 1) 180 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR23, 23, 1) 181 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR22, 22, 1) 182 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR21, 21, 1) 183 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR20, 20, 1) 184 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR19, 19, 1) 185 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR18, 18, 1) 186 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR17, 17, 1) 187 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR16, 16, 1) 188 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR15, 15, 1) 189 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR14, 14, 1) 190 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR13, 13, 1) 191 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR12, 12, 1) 192 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR11, 11, 1) 193 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR10, 10, 1) 194 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR9, 9, 1) 195 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR8, 8, 1) 196 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR7, 7, 1) 197 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR6, 6, 1) 198 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR5, 5, 1) 199 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR4, 4, 1) 200 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR3, 3, 1) 201 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR2, 2, 1) 202 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR1, 1, 1) 203 FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR0, 0, 1) 204 REG32(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, 0x94) 205 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS31, 31, 1) 206 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS30, 30, 1) 207 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS29, 29, 1) 208 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS28, 28, 1) 209 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS27, 27, 1) 210 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS26, 26, 1) 211 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS25, 25, 1) 212 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS24, 24, 1) 213 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS23, 23, 1) 214 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS22, 22, 1) 215 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS21, 21, 1) 216 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS20, 20, 1) 217 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS19, 19, 1) 218 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS18, 18, 1) 219 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS17, 17, 1) 220 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS16, 16, 1) 221 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS15, 15, 1) 222 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS14, 14, 1) 223 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS13, 13, 1) 224 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS12, 12, 1) 225 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS11, 11, 1) 226 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS10, 10, 1) 227 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS9, 9, 1) 228 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS8, 8, 1) 229 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS7, 7, 1) 230 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS6, 6, 1) 231 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS5, 5, 1) 232 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS4, 4, 1) 233 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS3, 3, 1) 234 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS2, 2, 1) 235 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS1, 1, 1) 236 FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS0, 0, 1) 237 REG32(TX_BUFFER_CANCEL_REQUEST_REGISTER, 0x98) 238 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR31, 31, 1) 239 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR30, 30, 1) 240 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR29, 29, 1) 241 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR28, 28, 1) 242 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR27, 27, 1) 243 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR26, 26, 1) 244 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR25, 25, 1) 245 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR24, 24, 1) 246 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR23, 23, 1) 247 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR22, 22, 1) 248 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR21, 21, 1) 249 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR20, 20, 1) 250 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR19, 19, 1) 251 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR18, 18, 1) 252 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR17, 17, 1) 253 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR16, 16, 1) 254 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR15, 15, 1) 255 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR14, 14, 1) 256 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR13, 13, 1) 257 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR12, 12, 1) 258 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR11, 11, 1) 259 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR10, 10, 1) 260 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR9, 9, 1) 261 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR8, 8, 1) 262 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR7, 7, 1) 263 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR6, 6, 1) 264 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR5, 5, 1) 265 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR4, 4, 1) 266 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR3, 3, 1) 267 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR2, 2, 1) 268 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR1, 1, 1) 269 FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR0, 0, 1) 270 REG32(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, 0x9c) 271 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS31, 31, 272 1) 273 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS30, 30, 274 1) 275 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS29, 29, 276 1) 277 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS28, 28, 278 1) 279 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS27, 27, 280 1) 281 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS26, 26, 282 1) 283 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS25, 25, 284 1) 285 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS24, 24, 286 1) 287 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS23, 23, 288 1) 289 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS22, 22, 290 1) 291 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS21, 21, 292 1) 293 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS20, 20, 294 1) 295 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS19, 19, 296 1) 297 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS18, 18, 298 1) 299 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS17, 17, 300 1) 301 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS16, 16, 302 1) 303 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS15, 15, 304 1) 305 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS14, 14, 306 1) 307 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS13, 13, 308 1) 309 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS12, 12, 310 1) 311 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS11, 11, 312 1) 313 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS10, 10, 314 1) 315 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS9, 9, 1) 316 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS8, 8, 1) 317 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS7, 7, 1) 318 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS6, 6, 1) 319 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS5, 5, 1) 320 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS4, 4, 1) 321 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS3, 3, 1) 322 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS2, 2, 1) 323 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS1, 1, 1) 324 FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS0, 0, 1) 325 REG32(TX_EVENT_FIFO_STATUS_REGISTER, 0xa0) 326 FIELD(TX_EVENT_FIFO_STATUS_REGISTER, TXE_FL, 8, 6) 327 FIELD(TX_EVENT_FIFO_STATUS_REGISTER, TXE_IRI, 7, 1) 328 FIELD(TX_EVENT_FIFO_STATUS_REGISTER, TXE_RI, 0, 5) 329 REG32(TX_EVENT_FIFO_WATERMARK_REGISTER, 0xa4) 330 FIELD(TX_EVENT_FIFO_WATERMARK_REGISTER, TXE_FWM, 0, 5) 331 REG32(ACCEPTANCE_FILTER_CONTROL_REGISTER, 0xe0) 332 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF31, 31, 1) 333 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF30, 30, 1) 334 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF29, 29, 1) 335 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF28, 28, 1) 336 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF27, 27, 1) 337 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF26, 26, 1) 338 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF25, 25, 1) 339 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF24, 24, 1) 340 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF23, 23, 1) 341 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF22, 22, 1) 342 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF21, 21, 1) 343 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF20, 20, 1) 344 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF19, 19, 1) 345 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF18, 18, 1) 346 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF17, 17, 1) 347 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF16, 16, 1) 348 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF15, 15, 1) 349 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF14, 14, 1) 350 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF13, 13, 1) 351 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF12, 12, 1) 352 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF11, 11, 1) 353 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF10, 10, 1) 354 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF9, 9, 1) 355 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF8, 8, 1) 356 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF7, 7, 1) 357 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF6, 6, 1) 358 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF5, 5, 1) 359 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF4, 4, 1) 360 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF3, 3, 1) 361 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF2, 2, 1) 362 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF1, 1, 1) 363 FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF0, 0, 1) 364 REG32(RX_FIFO_STATUS_REGISTER, 0xe8) 365 FIELD(RX_FIFO_STATUS_REGISTER, FL_1, 24, 7) 366 FIELD(RX_FIFO_STATUS_REGISTER, IRI_1, 23, 1) 367 FIELD(RX_FIFO_STATUS_REGISTER, RI_1, 16, 6) 368 FIELD(RX_FIFO_STATUS_REGISTER, FL, 8, 7) 369 FIELD(RX_FIFO_STATUS_REGISTER, IRI, 7, 1) 370 FIELD(RX_FIFO_STATUS_REGISTER, RI, 0, 6) 371 REG32(RX_FIFO_WATERMARK_REGISTER, 0xec) 372 FIELD(RX_FIFO_WATERMARK_REGISTER, RXFP, 16, 5) 373 FIELD(RX_FIFO_WATERMARK_REGISTER, RXFWM_1, 8, 6) 374 FIELD(RX_FIFO_WATERMARK_REGISTER, RXFWM, 0, 6) 375 REG32(TB_ID_REGISTER, 0x100) 376 FIELD(TB_ID_REGISTER, ID, 21, 11) 377 FIELD(TB_ID_REGISTER, SRR_RTR_RRS, 20, 1) 378 FIELD(TB_ID_REGISTER, IDE, 19, 1) 379 FIELD(TB_ID_REGISTER, ID_EXT, 1, 18) 380 FIELD(TB_ID_REGISTER, RTR_RRS, 0, 1) 381 REG32(TB0_DLC_REGISTER, 0x104) 382 FIELD(TB0_DLC_REGISTER, DLC, 28, 4) 383 FIELD(TB0_DLC_REGISTER, FDF, 27, 1) 384 FIELD(TB0_DLC_REGISTER, BRS, 26, 1) 385 FIELD(TB0_DLC_REGISTER, RSVD2, 25, 1) 386 FIELD(TB0_DLC_REGISTER, EFC, 24, 1) 387 FIELD(TB0_DLC_REGISTER, MM, 16, 8) 388 FIELD(TB0_DLC_REGISTER, RSVD1, 0, 16) 389 REG32(TB_DW0_REGISTER, 0x108) 390 FIELD(TB_DW0_REGISTER, DATA_BYTES0, 24, 8) 391 FIELD(TB_DW0_REGISTER, DATA_BYTES1, 16, 8) 392 FIELD(TB_DW0_REGISTER, DATA_BYTES2, 8, 8) 393 FIELD(TB_DW0_REGISTER, DATA_BYTES3, 0, 8) 394 REG32(TB_DW1_REGISTER, 0x10c) 395 FIELD(TB_DW1_REGISTER, DATA_BYTES4, 24, 8) 396 FIELD(TB_DW1_REGISTER, DATA_BYTES5, 16, 8) 397 FIELD(TB_DW1_REGISTER, DATA_BYTES6, 8, 8) 398 FIELD(TB_DW1_REGISTER, DATA_BYTES7, 0, 8) 399 REG32(TB_DW2_REGISTER, 0x110) 400 FIELD(TB_DW2_REGISTER, DATA_BYTES8, 24, 8) 401 FIELD(TB_DW2_REGISTER, DATA_BYTES9, 16, 8) 402 FIELD(TB_DW2_REGISTER, DATA_BYTES10, 8, 8) 403 FIELD(TB_DW2_REGISTER, DATA_BYTES11, 0, 8) 404 REG32(TB_DW3_REGISTER, 0x114) 405 FIELD(TB_DW3_REGISTER, DATA_BYTES12, 24, 8) 406 FIELD(TB_DW3_REGISTER, DATA_BYTES13, 16, 8) 407 FIELD(TB_DW3_REGISTER, DATA_BYTES14, 8, 8) 408 FIELD(TB_DW3_REGISTER, DATA_BYTES15, 0, 8) 409 REG32(TB_DW4_REGISTER, 0x118) 410 FIELD(TB_DW4_REGISTER, DATA_BYTES16, 24, 8) 411 FIELD(TB_DW4_REGISTER, DATA_BYTES17, 16, 8) 412 FIELD(TB_DW4_REGISTER, DATA_BYTES18, 8, 8) 413 FIELD(TB_DW4_REGISTER, DATA_BYTES19, 0, 8) 414 REG32(TB_DW5_REGISTER, 0x11c) 415 FIELD(TB_DW5_REGISTER, DATA_BYTES20, 24, 8) 416 FIELD(TB_DW5_REGISTER, DATA_BYTES21, 16, 8) 417 FIELD(TB_DW5_REGISTER, DATA_BYTES22, 8, 8) 418 FIELD(TB_DW5_REGISTER, DATA_BYTES23, 0, 8) 419 REG32(TB_DW6_REGISTER, 0x120) 420 FIELD(TB_DW6_REGISTER, DATA_BYTES24, 24, 8) 421 FIELD(TB_DW6_REGISTER, DATA_BYTES25, 16, 8) 422 FIELD(TB_DW6_REGISTER, DATA_BYTES26, 8, 8) 423 FIELD(TB_DW6_REGISTER, DATA_BYTES27, 0, 8) 424 REG32(TB_DW7_REGISTER, 0x124) 425 FIELD(TB_DW7_REGISTER, DATA_BYTES28, 24, 8) 426 FIELD(TB_DW7_REGISTER, DATA_BYTES29, 16, 8) 427 FIELD(TB_DW7_REGISTER, DATA_BYTES30, 8, 8) 428 FIELD(TB_DW7_REGISTER, DATA_BYTES31, 0, 8) 429 REG32(TB_DW8_REGISTER, 0x128) 430 FIELD(TB_DW8_REGISTER, DATA_BYTES32, 24, 8) 431 FIELD(TB_DW8_REGISTER, DATA_BYTES33, 16, 8) 432 FIELD(TB_DW8_REGISTER, DATA_BYTES34, 8, 8) 433 FIELD(TB_DW8_REGISTER, DATA_BYTES35, 0, 8) 434 REG32(TB_DW9_REGISTER, 0x12c) 435 FIELD(TB_DW9_REGISTER, DATA_BYTES36, 24, 8) 436 FIELD(TB_DW9_REGISTER, DATA_BYTES37, 16, 8) 437 FIELD(TB_DW9_REGISTER, DATA_BYTES38, 8, 8) 438 FIELD(TB_DW9_REGISTER, DATA_BYTES39, 0, 8) 439 REG32(TB_DW10_REGISTER, 0x130) 440 FIELD(TB_DW10_REGISTER, DATA_BYTES40, 24, 8) 441 FIELD(TB_DW10_REGISTER, DATA_BYTES41, 16, 8) 442 FIELD(TB_DW10_REGISTER, DATA_BYTES42, 8, 8) 443 FIELD(TB_DW10_REGISTER, DATA_BYTES43, 0, 8) 444 REG32(TB_DW11_REGISTER, 0x134) 445 FIELD(TB_DW11_REGISTER, DATA_BYTES44, 24, 8) 446 FIELD(TB_DW11_REGISTER, DATA_BYTES45, 16, 8) 447 FIELD(TB_DW11_REGISTER, DATA_BYTES46, 8, 8) 448 FIELD(TB_DW11_REGISTER, DATA_BYTES47, 0, 8) 449 REG32(TB_DW12_REGISTER, 0x138) 450 FIELD(TB_DW12_REGISTER, DATA_BYTES48, 24, 8) 451 FIELD(TB_DW12_REGISTER, DATA_BYTES49, 16, 8) 452 FIELD(TB_DW12_REGISTER, DATA_BYTES50, 8, 8) 453 FIELD(TB_DW12_REGISTER, DATA_BYTES51, 0, 8) 454 REG32(TB_DW13_REGISTER, 0x13c) 455 FIELD(TB_DW13_REGISTER, DATA_BYTES52, 24, 8) 456 FIELD(TB_DW13_REGISTER, DATA_BYTES53, 16, 8) 457 FIELD(TB_DW13_REGISTER, DATA_BYTES54, 8, 8) 458 FIELD(TB_DW13_REGISTER, DATA_BYTES55, 0, 8) 459 REG32(TB_DW14_REGISTER, 0x140) 460 FIELD(TB_DW14_REGISTER, DATA_BYTES56, 24, 8) 461 FIELD(TB_DW14_REGISTER, DATA_BYTES57, 16, 8) 462 FIELD(TB_DW14_REGISTER, DATA_BYTES58, 8, 8) 463 FIELD(TB_DW14_REGISTER, DATA_BYTES59, 0, 8) 464 REG32(TB_DW15_REGISTER, 0x144) 465 FIELD(TB_DW15_REGISTER, DATA_BYTES60, 24, 8) 466 FIELD(TB_DW15_REGISTER, DATA_BYTES61, 16, 8) 467 FIELD(TB_DW15_REGISTER, DATA_BYTES62, 8, 8) 468 FIELD(TB_DW15_REGISTER, DATA_BYTES63, 0, 8) 469 REG32(AFMR_REGISTER, 0xa00) 470 FIELD(AFMR_REGISTER, AMID, 21, 11) 471 FIELD(AFMR_REGISTER, AMSRR, 20, 1) 472 FIELD(AFMR_REGISTER, AMIDE, 19, 1) 473 FIELD(AFMR_REGISTER, AMID_EXT, 1, 18) 474 FIELD(AFMR_REGISTER, AMRTR, 0, 1) 475 REG32(AFIR_REGISTER, 0xa04) 476 FIELD(AFIR_REGISTER, AIID, 21, 11) 477 FIELD(AFIR_REGISTER, AISRR, 20, 1) 478 FIELD(AFIR_REGISTER, AIIDE, 19, 1) 479 FIELD(AFIR_REGISTER, AIID_EXT, 1, 18) 480 FIELD(AFIR_REGISTER, AIRTR, 0, 1) 481 REG32(TXE_FIFO_TB_ID_REGISTER, 0x2000) 482 FIELD(TXE_FIFO_TB_ID_REGISTER, ID, 21, 11) 483 FIELD(TXE_FIFO_TB_ID_REGISTER, SRR_RTR_RRS, 20, 1) 484 FIELD(TXE_FIFO_TB_ID_REGISTER, IDE, 19, 1) 485 FIELD(TXE_FIFO_TB_ID_REGISTER, ID_EXT, 1, 18) 486 FIELD(TXE_FIFO_TB_ID_REGISTER, RTR_RRS, 0, 1) 487 REG32(TXE_FIFO_TB_DLC_REGISTER, 0x2004) 488 FIELD(TXE_FIFO_TB_DLC_REGISTER, DLC, 28, 4) 489 FIELD(TXE_FIFO_TB_DLC_REGISTER, FDF, 27, 1) 490 FIELD(TXE_FIFO_TB_DLC_REGISTER, BRS, 26, 1) 491 FIELD(TXE_FIFO_TB_DLC_REGISTER, ET, 24, 2) 492 FIELD(TXE_FIFO_TB_DLC_REGISTER, MM, 16, 8) 493 FIELD(TXE_FIFO_TB_DLC_REGISTER, TIMESTAMP, 0, 16) 494 REG32(RB_ID_REGISTER, 0x2100) 495 FIELD(RB_ID_REGISTER, ID, 21, 11) 496 FIELD(RB_ID_REGISTER, SRR_RTR_RRS, 20, 1) 497 FIELD(RB_ID_REGISTER, IDE, 19, 1) 498 FIELD(RB_ID_REGISTER, ID_EXT, 1, 18) 499 FIELD(RB_ID_REGISTER, RTR_RRS, 0, 1) 500 REG32(RB_DLC_REGISTER, 0x2104) 501 FIELD(RB_DLC_REGISTER, DLC, 28, 4) 502 FIELD(RB_DLC_REGISTER, FDF, 27, 1) 503 FIELD(RB_DLC_REGISTER, BRS, 26, 1) 504 FIELD(RB_DLC_REGISTER, ESI, 25, 1) 505 FIELD(RB_DLC_REGISTER, MATCHED_FILTER_INDEX, 16, 5) 506 FIELD(RB_DLC_REGISTER, TIMESTAMP, 0, 16) 507 REG32(RB_DW0_REGISTER, 0x2108) 508 FIELD(RB_DW0_REGISTER, DATA_BYTES0, 24, 8) 509 FIELD(RB_DW0_REGISTER, DATA_BYTES1, 16, 8) 510 FIELD(RB_DW0_REGISTER, DATA_BYTES2, 8, 8) 511 FIELD(RB_DW0_REGISTER, DATA_BYTES3, 0, 8) 512 REG32(RB_DW1_REGISTER, 0x210c) 513 FIELD(RB_DW1_REGISTER, DATA_BYTES4, 24, 8) 514 FIELD(RB_DW1_REGISTER, DATA_BYTES5, 16, 8) 515 FIELD(RB_DW1_REGISTER, DATA_BYTES6, 8, 8) 516 FIELD(RB_DW1_REGISTER, DATA_BYTES7, 0, 8) 517 REG32(RB_DW2_REGISTER, 0x2110) 518 FIELD(RB_DW2_REGISTER, DATA_BYTES8, 24, 8) 519 FIELD(RB_DW2_REGISTER, DATA_BYTES9, 16, 8) 520 FIELD(RB_DW2_REGISTER, DATA_BYTES10, 8, 8) 521 FIELD(RB_DW2_REGISTER, DATA_BYTES11, 0, 8) 522 REG32(RB_DW3_REGISTER, 0x2114) 523 FIELD(RB_DW3_REGISTER, DATA_BYTES12, 24, 8) 524 FIELD(RB_DW3_REGISTER, DATA_BYTES13, 16, 8) 525 FIELD(RB_DW3_REGISTER, DATA_BYTES14, 8, 8) 526 FIELD(RB_DW3_REGISTER, DATA_BYTES15, 0, 8) 527 REG32(RB_DW4_REGISTER, 0x2118) 528 FIELD(RB_DW4_REGISTER, DATA_BYTES16, 24, 8) 529 FIELD(RB_DW4_REGISTER, DATA_BYTES17, 16, 8) 530 FIELD(RB_DW4_REGISTER, DATA_BYTES18, 8, 8) 531 FIELD(RB_DW4_REGISTER, DATA_BYTES19, 0, 8) 532 REG32(RB_DW5_REGISTER, 0x211c) 533 FIELD(RB_DW5_REGISTER, DATA_BYTES20, 24, 8) 534 FIELD(RB_DW5_REGISTER, DATA_BYTES21, 16, 8) 535 FIELD(RB_DW5_REGISTER, DATA_BYTES22, 8, 8) 536 FIELD(RB_DW5_REGISTER, DATA_BYTES23, 0, 8) 537 REG32(RB_DW6_REGISTER, 0x2120) 538 FIELD(RB_DW6_REGISTER, DATA_BYTES24, 24, 8) 539 FIELD(RB_DW6_REGISTER, DATA_BYTES25, 16, 8) 540 FIELD(RB_DW6_REGISTER, DATA_BYTES26, 8, 8) 541 FIELD(RB_DW6_REGISTER, DATA_BYTES27, 0, 8) 542 REG32(RB_DW7_REGISTER, 0x2124) 543 FIELD(RB_DW7_REGISTER, DATA_BYTES28, 24, 8) 544 FIELD(RB_DW7_REGISTER, DATA_BYTES29, 16, 8) 545 FIELD(RB_DW7_REGISTER, DATA_BYTES30, 8, 8) 546 FIELD(RB_DW7_REGISTER, DATA_BYTES31, 0, 8) 547 REG32(RB_DW8_REGISTER, 0x2128) 548 FIELD(RB_DW8_REGISTER, DATA_BYTES32, 24, 8) 549 FIELD(RB_DW8_REGISTER, DATA_BYTES33, 16, 8) 550 FIELD(RB_DW8_REGISTER, DATA_BYTES34, 8, 8) 551 FIELD(RB_DW8_REGISTER, DATA_BYTES35, 0, 8) 552 REG32(RB_DW9_REGISTER, 0x212c) 553 FIELD(RB_DW9_REGISTER, DATA_BYTES36, 24, 8) 554 FIELD(RB_DW9_REGISTER, DATA_BYTES37, 16, 8) 555 FIELD(RB_DW9_REGISTER, DATA_BYTES38, 8, 8) 556 FIELD(RB_DW9_REGISTER, DATA_BYTES39, 0, 8) 557 REG32(RB_DW10_REGISTER, 0x2130) 558 FIELD(RB_DW10_REGISTER, DATA_BYTES40, 24, 8) 559 FIELD(RB_DW10_REGISTER, DATA_BYTES41, 16, 8) 560 FIELD(RB_DW10_REGISTER, DATA_BYTES42, 8, 8) 561 FIELD(RB_DW10_REGISTER, DATA_BYTES43, 0, 8) 562 REG32(RB_DW11_REGISTER, 0x2134) 563 FIELD(RB_DW11_REGISTER, DATA_BYTES44, 24, 8) 564 FIELD(RB_DW11_REGISTER, DATA_BYTES45, 16, 8) 565 FIELD(RB_DW11_REGISTER, DATA_BYTES46, 8, 8) 566 FIELD(RB_DW11_REGISTER, DATA_BYTES47, 0, 8) 567 REG32(RB_DW12_REGISTER, 0x2138) 568 FIELD(RB_DW12_REGISTER, DATA_BYTES48, 24, 8) 569 FIELD(RB_DW12_REGISTER, DATA_BYTES49, 16, 8) 570 FIELD(RB_DW12_REGISTER, DATA_BYTES50, 8, 8) 571 FIELD(RB_DW12_REGISTER, DATA_BYTES51, 0, 8) 572 REG32(RB_DW13_REGISTER, 0x213c) 573 FIELD(RB_DW13_REGISTER, DATA_BYTES52, 24, 8) 574 FIELD(RB_DW13_REGISTER, DATA_BYTES53, 16, 8) 575 FIELD(RB_DW13_REGISTER, DATA_BYTES54, 8, 8) 576 FIELD(RB_DW13_REGISTER, DATA_BYTES55, 0, 8) 577 REG32(RB_DW14_REGISTER, 0x2140) 578 FIELD(RB_DW14_REGISTER, DATA_BYTES56, 24, 8) 579 FIELD(RB_DW14_REGISTER, DATA_BYTES57, 16, 8) 580 FIELD(RB_DW14_REGISTER, DATA_BYTES58, 8, 8) 581 FIELD(RB_DW14_REGISTER, DATA_BYTES59, 0, 8) 582 REG32(RB_DW15_REGISTER, 0x2144) 583 FIELD(RB_DW15_REGISTER, DATA_BYTES60, 24, 8) 584 FIELD(RB_DW15_REGISTER, DATA_BYTES61, 16, 8) 585 FIELD(RB_DW15_REGISTER, DATA_BYTES62, 8, 8) 586 FIELD(RB_DW15_REGISTER, DATA_BYTES63, 0, 8) 587 REG32(RB_ID_REGISTER_1, 0x4100) 588 FIELD(RB_ID_REGISTER_1, ID, 21, 11) 589 FIELD(RB_ID_REGISTER_1, SRR_RTR_RRS, 20, 1) 590 FIELD(RB_ID_REGISTER_1, IDE, 19, 1) 591 FIELD(RB_ID_REGISTER_1, ID_EXT, 1, 18) 592 FIELD(RB_ID_REGISTER_1, RTR_RRS, 0, 1) 593 REG32(RB_DLC_REGISTER_1, 0x4104) 594 FIELD(RB_DLC_REGISTER_1, DLC, 28, 4) 595 FIELD(RB_DLC_REGISTER_1, FDF, 27, 1) 596 FIELD(RB_DLC_REGISTER_1, BRS, 26, 1) 597 FIELD(RB_DLC_REGISTER_1, ESI, 25, 1) 598 FIELD(RB_DLC_REGISTER_1, MATCHED_FILTER_INDEX, 16, 5) 599 FIELD(RB_DLC_REGISTER_1, TIMESTAMP, 0, 16) 600 REG32(RB0_DW0_REGISTER_1, 0x4108) 601 FIELD(RB0_DW0_REGISTER_1, DATA_BYTES0, 24, 8) 602 FIELD(RB0_DW0_REGISTER_1, DATA_BYTES1, 16, 8) 603 FIELD(RB0_DW0_REGISTER_1, DATA_BYTES2, 8, 8) 604 FIELD(RB0_DW0_REGISTER_1, DATA_BYTES3, 0, 8) 605 REG32(RB_DW1_REGISTER_1, 0x410c) 606 FIELD(RB_DW1_REGISTER_1, DATA_BYTES4, 24, 8) 607 FIELD(RB_DW1_REGISTER_1, DATA_BYTES5, 16, 8) 608 FIELD(RB_DW1_REGISTER_1, DATA_BYTES6, 8, 8) 609 FIELD(RB_DW1_REGISTER_1, DATA_BYTES7, 0, 8) 610 REG32(RB_DW2_REGISTER_1, 0x4110) 611 FIELD(RB_DW2_REGISTER_1, DATA_BYTES8, 24, 8) 612 FIELD(RB_DW2_REGISTER_1, DATA_BYTES9, 16, 8) 613 FIELD(RB_DW2_REGISTER_1, DATA_BYTES10, 8, 8) 614 FIELD(RB_DW2_REGISTER_1, DATA_BYTES11, 0, 8) 615 REG32(RB_DW3_REGISTER_1, 0x4114) 616 FIELD(RB_DW3_REGISTER_1, DATA_BYTES12, 24, 8) 617 FIELD(RB_DW3_REGISTER_1, DATA_BYTES13, 16, 8) 618 FIELD(RB_DW3_REGISTER_1, DATA_BYTES14, 8, 8) 619 FIELD(RB_DW3_REGISTER_1, DATA_BYTES15, 0, 8) 620 REG32(RB_DW4_REGISTER_1, 0x4118) 621 FIELD(RB_DW4_REGISTER_1, DATA_BYTES16, 24, 8) 622 FIELD(RB_DW4_REGISTER_1, DATA_BYTES17, 16, 8) 623 FIELD(RB_DW4_REGISTER_1, DATA_BYTES18, 8, 8) 624 FIELD(RB_DW4_REGISTER_1, DATA_BYTES19, 0, 8) 625 REG32(RB_DW5_REGISTER_1, 0x411c) 626 FIELD(RB_DW5_REGISTER_1, DATA_BYTES20, 24, 8) 627 FIELD(RB_DW5_REGISTER_1, DATA_BYTES21, 16, 8) 628 FIELD(RB_DW5_REGISTER_1, DATA_BYTES22, 8, 8) 629 FIELD(RB_DW5_REGISTER_1, DATA_BYTES23, 0, 8) 630 REG32(RB_DW6_REGISTER_1, 0x4120) 631 FIELD(RB_DW6_REGISTER_1, DATA_BYTES24, 24, 8) 632 FIELD(RB_DW6_REGISTER_1, DATA_BYTES25, 16, 8) 633 FIELD(RB_DW6_REGISTER_1, DATA_BYTES26, 8, 8) 634 FIELD(RB_DW6_REGISTER_1, DATA_BYTES27, 0, 8) 635 REG32(RB_DW7_REGISTER_1, 0x4124) 636 FIELD(RB_DW7_REGISTER_1, DATA_BYTES28, 24, 8) 637 FIELD(RB_DW7_REGISTER_1, DATA_BYTES29, 16, 8) 638 FIELD(RB_DW7_REGISTER_1, DATA_BYTES30, 8, 8) 639 FIELD(RB_DW7_REGISTER_1, DATA_BYTES31, 0, 8) 640 REG32(RB_DW8_REGISTER_1, 0x4128) 641 FIELD(RB_DW8_REGISTER_1, DATA_BYTES32, 24, 8) 642 FIELD(RB_DW8_REGISTER_1, DATA_BYTES33, 16, 8) 643 FIELD(RB_DW8_REGISTER_1, DATA_BYTES34, 8, 8) 644 FIELD(RB_DW8_REGISTER_1, DATA_BYTES35, 0, 8) 645 REG32(RB_DW9_REGISTER_1, 0x412c) 646 FIELD(RB_DW9_REGISTER_1, DATA_BYTES36, 24, 8) 647 FIELD(RB_DW9_REGISTER_1, DATA_BYTES37, 16, 8) 648 FIELD(RB_DW9_REGISTER_1, DATA_BYTES38, 8, 8) 649 FIELD(RB_DW9_REGISTER_1, DATA_BYTES39, 0, 8) 650 REG32(RB_DW10_REGISTER_1, 0x4130) 651 FIELD(RB_DW10_REGISTER_1, DATA_BYTES40, 24, 8) 652 FIELD(RB_DW10_REGISTER_1, DATA_BYTES41, 16, 8) 653 FIELD(RB_DW10_REGISTER_1, DATA_BYTES42, 8, 8) 654 FIELD(RB_DW10_REGISTER_1, DATA_BYTES43, 0, 8) 655 REG32(RB_DW11_REGISTER_1, 0x4134) 656 FIELD(RB_DW11_REGISTER_1, DATA_BYTES44, 24, 8) 657 FIELD(RB_DW11_REGISTER_1, DATA_BYTES45, 16, 8) 658 FIELD(RB_DW11_REGISTER_1, DATA_BYTES46, 8, 8) 659 FIELD(RB_DW11_REGISTER_1, DATA_BYTES47, 0, 8) 660 REG32(RB_DW12_REGISTER_1, 0x4138) 661 FIELD(RB_DW12_REGISTER_1, DATA_BYTES48, 24, 8) 662 FIELD(RB_DW12_REGISTER_1, DATA_BYTES49, 16, 8) 663 FIELD(RB_DW12_REGISTER_1, DATA_BYTES50, 8, 8) 664 FIELD(RB_DW12_REGISTER_1, DATA_BYTES51, 0, 8) 665 REG32(RB_DW13_REGISTER_1, 0x413c) 666 FIELD(RB_DW13_REGISTER_1, DATA_BYTES52, 24, 8) 667 FIELD(RB_DW13_REGISTER_1, DATA_BYTES53, 16, 8) 668 FIELD(RB_DW13_REGISTER_1, DATA_BYTES54, 8, 8) 669 FIELD(RB_DW13_REGISTER_1, DATA_BYTES55, 0, 8) 670 REG32(RB_DW14_REGISTER_1, 0x4140) 671 FIELD(RB_DW14_REGISTER_1, DATA_BYTES56, 24, 8) 672 FIELD(RB_DW14_REGISTER_1, DATA_BYTES57, 16, 8) 673 FIELD(RB_DW14_REGISTER_1, DATA_BYTES58, 8, 8) 674 FIELD(RB_DW14_REGISTER_1, DATA_BYTES59, 0, 8) 675 REG32(RB_DW15_REGISTER_1, 0x4144) 676 FIELD(RB_DW15_REGISTER_1, DATA_BYTES60, 24, 8) 677 FIELD(RB_DW15_REGISTER_1, DATA_BYTES61, 16, 8) 678 FIELD(RB_DW15_REGISTER_1, DATA_BYTES62, 8, 8) 679 FIELD(RB_DW15_REGISTER_1, DATA_BYTES63, 0, 8) 680 canfd_update_irq(XlnxVersalCANFDState * s)681 static void canfd_update_irq(XlnxVersalCANFDState *s) 682 { 683 const bool irq = (s->regs[R_INTERRUPT_STATUS_REGISTER] & 684 s->regs[R_INTERRUPT_ENABLE_REGISTER]) != 0; 685 g_autofree char *path = object_get_canonical_path(OBJECT(s)); 686 687 /* RX watermark interrupts. */ 688 if (ARRAY_FIELD_EX32(s->regs, RX_FIFO_STATUS_REGISTER, FL) > 689 ARRAY_FIELD_EX32(s->regs, RX_FIFO_WATERMARK_REGISTER, RXFWM)) { 690 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXFWMFLL, 1); 691 } 692 693 if (ARRAY_FIELD_EX32(s->regs, RX_FIFO_STATUS_REGISTER, FL_1) > 694 ARRAY_FIELD_EX32(s->regs, RX_FIFO_WATERMARK_REGISTER, RXFWM_1)) { 695 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXFWMFLL_1, 1); 696 } 697 698 /* TX watermark interrupt. */ 699 if (ARRAY_FIELD_EX32(s->regs, TX_EVENT_FIFO_STATUS_REGISTER, TXE_FL) > 700 ARRAY_FIELD_EX32(s->regs, TX_EVENT_FIFO_WATERMARK_REGISTER, TXE_FWM)) { 701 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, TXEWMFLL, 1); 702 } 703 704 trace_xlnx_canfd_update_irq(path, s->regs[R_INTERRUPT_STATUS_REGISTER], 705 s->regs[R_INTERRUPT_ENABLE_REGISTER], irq); 706 707 qemu_set_irq(s->irq_canfd_int, irq); 708 } 709 canfd_ier_post_write(RegisterInfo * reg,uint64_t val64)710 static void canfd_ier_post_write(RegisterInfo *reg, uint64_t val64) 711 { 712 XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); 713 714 canfd_update_irq(s); 715 } 716 canfd_icr_pre_write(RegisterInfo * reg,uint64_t val64)717 static uint64_t canfd_icr_pre_write(RegisterInfo *reg, uint64_t val64) 718 { 719 XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); 720 uint32_t val = val64; 721 722 s->regs[R_INTERRUPT_STATUS_REGISTER] &= ~val; 723 724 /* 725 * RXBOFLW_BI field is automatically cleared to default if RXBOFLW bit is 726 * cleared in ISR. 727 */ 728 if (ARRAY_FIELD_EX32(s->regs, INTERRUPT_STATUS_REGISTER, RXFWMFLL_1)) { 729 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXBOFLW_BI, 0); 730 } 731 732 canfd_update_irq(s); 733 734 return 0; 735 } 736 canfd_config_reset(XlnxVersalCANFDState * s)737 static void canfd_config_reset(XlnxVersalCANFDState *s) 738 { 739 740 unsigned int i; 741 742 /* Reset all the configuration registers. */ 743 for (i = 0; i < R_RX_FIFO_WATERMARK_REGISTER; ++i) { 744 register_reset(&s->reg_info[i]); 745 } 746 747 canfd_update_irq(s); 748 } 749 canfd_config_mode(XlnxVersalCANFDState * s)750 static void canfd_config_mode(XlnxVersalCANFDState *s) 751 { 752 register_reset(&s->reg_info[R_ERROR_COUNTER_REGISTER]); 753 register_reset(&s->reg_info[R_ERROR_STATUS_REGISTER]); 754 register_reset(&s->reg_info[R_STATUS_REGISTER]); 755 756 /* Put XlnxVersalCANFDState in configuration mode. */ 757 ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, CONFIG, 1); 758 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, WKUP, 0); 759 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, SLP, 0); 760 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, BSOFF, 0); 761 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, ERROR_BIT, 0); 762 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXFOFLW, 0); 763 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXFOFLW_1, 0); 764 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXOK, 0); 765 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, TXOK, 0); 766 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, ARBLST, 0); 767 768 /* Clear the time stamp. */ 769 ptimer_transaction_begin(s->canfd_timer); 770 ptimer_set_count(s->canfd_timer, 0); 771 ptimer_transaction_commit(s->canfd_timer); 772 773 canfd_update_irq(s); 774 } 775 update_status_register_mode_bits(XlnxVersalCANFDState * s)776 static void update_status_register_mode_bits(XlnxVersalCANFDState *s) 777 { 778 bool sleep_status = ARRAY_FIELD_EX32(s->regs, STATUS_REGISTER, SLEEP); 779 bool sleep_mode = ARRAY_FIELD_EX32(s->regs, MODE_SELECT_REGISTER, SLEEP); 780 /* Wake up interrupt bit. */ 781 bool wakeup_irq_val = !sleep_mode && sleep_status; 782 /* Sleep interrupt bit. */ 783 bool sleep_irq_val = sleep_mode && !sleep_status; 784 785 /* Clear previous core mode status bits. */ 786 ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, LBACK, 0); 787 ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, SLEEP, 0); 788 ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, SNOOP, 0); 789 ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, NORMAL, 0); 790 791 /* set current mode bit and generate irqs accordingly. */ 792 if (ARRAY_FIELD_EX32(s->regs, MODE_SELECT_REGISTER, LBACK)) { 793 ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, LBACK, 1); 794 } else if (ARRAY_FIELD_EX32(s->regs, MODE_SELECT_REGISTER, SLEEP)) { 795 ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, SLEEP, 1); 796 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, SLP, 797 sleep_irq_val); 798 } else if (ARRAY_FIELD_EX32(s->regs, MODE_SELECT_REGISTER, SNOOP)) { 799 ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, SNOOP, 1); 800 } else { 801 /* If all bits are zero, XlnxVersalCANFDState is set in normal mode. */ 802 ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, NORMAL, 1); 803 /* Set wakeup interrupt bit. */ 804 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, WKUP, 805 wakeup_irq_val); 806 } 807 808 /* Put the CANFD in error active state. */ 809 ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, ESTAT, 1); 810 811 canfd_update_irq(s); 812 } 813 canfd_msr_pre_write(RegisterInfo * reg,uint64_t val64)814 static uint64_t canfd_msr_pre_write(RegisterInfo *reg, uint64_t val64) 815 { 816 XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); 817 uint32_t val = val64; 818 uint8_t multi_mode = 0; 819 820 /* 821 * Multiple mode set check. This is done to make sure user doesn't set 822 * multiple modes. 823 */ 824 multi_mode = FIELD_EX32(val, MODE_SELECT_REGISTER, LBACK) + 825 FIELD_EX32(val, MODE_SELECT_REGISTER, SLEEP) + 826 FIELD_EX32(val, MODE_SELECT_REGISTER, SNOOP); 827 828 if (multi_mode > 1) { 829 qemu_log_mask(LOG_GUEST_ERROR, "Attempting to configure several modes" 830 " simultaneously. One mode will be selected according to" 831 " their priority: LBACK > SLEEP > SNOOP.\n"); 832 } 833 834 if (ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, CEN) == 0) { 835 /* In configuration mode, any mode can be selected. */ 836 s->regs[R_MODE_SELECT_REGISTER] = val; 837 } else { 838 bool sleep_mode_bit = FIELD_EX32(val, MODE_SELECT_REGISTER, SLEEP); 839 840 ARRAY_FIELD_DP32(s->regs, MODE_SELECT_REGISTER, SLEEP, sleep_mode_bit); 841 842 if (FIELD_EX32(val, MODE_SELECT_REGISTER, LBACK)) { 843 qemu_log_mask(LOG_GUEST_ERROR, "Attempting to set LBACK mode" 844 " without setting CEN bit as 0\n"); 845 } else if (FIELD_EX32(val, MODE_SELECT_REGISTER, SNOOP)) { 846 qemu_log_mask(LOG_GUEST_ERROR, "Attempting to set SNOOP mode" 847 " without setting CEN bit as 0\n"); 848 } 849 850 update_status_register_mode_bits(s); 851 } 852 853 return s->regs[R_MODE_SELECT_REGISTER]; 854 } 855 canfd_exit_sleep_mode(XlnxVersalCANFDState * s)856 static void canfd_exit_sleep_mode(XlnxVersalCANFDState *s) 857 { 858 ARRAY_FIELD_DP32(s->regs, MODE_SELECT_REGISTER, SLEEP, 0); 859 update_status_register_mode_bits(s); 860 } 861 regs2frame(XlnxVersalCANFDState * s,qemu_can_frame * frame,uint32_t reg_num)862 static void regs2frame(XlnxVersalCANFDState *s, qemu_can_frame *frame, 863 uint32_t reg_num) 864 { 865 uint32_t i = 0; 866 uint32_t j = 0; 867 uint32_t val = 0; 868 uint32_t dlc_reg_val = 0; 869 uint32_t dlc_value = 0; 870 uint32_t id_reg_val = 0; 871 bool is_rtr = false; 872 873 frame->flags = 0; 874 875 /* Check that reg_num should be within TX register space. */ 876 assert(reg_num <= R_TB_ID_REGISTER + (NUM_REGS_PER_MSG_SPACE * 877 s->cfg.tx_fifo)); 878 879 dlc_reg_val = s->regs[reg_num + 1]; 880 dlc_value = FIELD_EX32(dlc_reg_val, TB0_DLC_REGISTER, DLC); 881 882 id_reg_val = s->regs[reg_num]; 883 if (FIELD_EX32(id_reg_val, TB_ID_REGISTER, IDE)) { 884 frame->can_id = (FIELD_EX32(id_reg_val, TB_ID_REGISTER, ID) << 18) | 885 (FIELD_EX32(id_reg_val, TB_ID_REGISTER, ID_EXT)) | 886 QEMU_CAN_EFF_FLAG; 887 if (FIELD_EX32(id_reg_val, TB_ID_REGISTER, RTR_RRS)) { 888 is_rtr = true; 889 } 890 } else { 891 frame->can_id = FIELD_EX32(id_reg_val, TB_ID_REGISTER, ID); 892 if (FIELD_EX32(id_reg_val, TB_ID_REGISTER, SRR_RTR_RRS)) { 893 is_rtr = true; 894 } 895 } 896 897 if (FIELD_EX32(dlc_reg_val, TB0_DLC_REGISTER, FDF)) { 898 frame->flags |= QEMU_CAN_FRMF_TYPE_FD; 899 900 if (FIELD_EX32(dlc_reg_val, TB0_DLC_REGISTER, BRS)) { 901 frame->flags |= QEMU_CAN_FRMF_BRS; 902 } 903 } else { 904 if (is_rtr) { 905 frame->can_id |= QEMU_CAN_RTR_FLAG; 906 } 907 } 908 909 frame->can_dlc = can_dlc2len(dlc_value); 910 911 for (j = 0; j < frame->can_dlc; j++) { 912 val = 8 * (3 - i); 913 914 frame->data[j] = extract32(s->regs[reg_num + 2 + (j / 4)], val, 8); 915 i++; 916 917 if (i % 4 == 0) { 918 i = 0; 919 } 920 } 921 } 922 process_cancellation_requests(XlnxVersalCANFDState * s)923 static void process_cancellation_requests(XlnxVersalCANFDState *s) 924 { 925 uint32_t clear_mask = s->regs[R_TX_BUFFER_READY_REQUEST_REGISTER] & 926 s->regs[R_TX_BUFFER_CANCEL_REQUEST_REGISTER]; 927 928 s->regs[R_TX_BUFFER_READY_REQUEST_REGISTER] &= ~clear_mask; 929 s->regs[R_TX_BUFFER_CANCEL_REQUEST_REGISTER] &= ~clear_mask; 930 931 canfd_update_irq(s); 932 } 933 frame_to_reg_id(const qemu_can_frame * frame)934 static uint32_t frame_to_reg_id(const qemu_can_frame *frame) 935 { 936 uint32_t id_reg_val = 0; 937 const bool is_canfd_frame = frame->flags & QEMU_CAN_FRMF_TYPE_FD; 938 const bool is_rtr = !is_canfd_frame && (frame->can_id & QEMU_CAN_RTR_FLAG); 939 940 if (frame->can_id & QEMU_CAN_EFF_FLAG) { 941 id_reg_val |= FIELD_DP32(0, RB_ID_REGISTER, ID, 942 (frame->can_id & QEMU_CAN_EFF_MASK) >> 18); 943 id_reg_val |= FIELD_DP32(0, RB_ID_REGISTER, ID_EXT, 944 frame->can_id & QEMU_CAN_EFF_MASK); 945 id_reg_val |= FIELD_DP32(0, RB_ID_REGISTER, IDE, 1); 946 id_reg_val |= FIELD_DP32(0, RB_ID_REGISTER, SRR_RTR_RRS, 1); 947 if (is_rtr) { 948 id_reg_val |= FIELD_DP32(0, RB_ID_REGISTER, RTR_RRS, 1); 949 } 950 } else { 951 id_reg_val |= FIELD_DP32(0, RB_ID_REGISTER, ID, 952 frame->can_id & QEMU_CAN_SFF_MASK); 953 if (is_rtr) { 954 id_reg_val |= FIELD_DP32(0, RB_ID_REGISTER, SRR_RTR_RRS, 1); 955 } 956 } 957 958 return id_reg_val; 959 } 960 store_rx_sequential(XlnxVersalCANFDState * s,const qemu_can_frame * frame,uint32_t fill_level,uint32_t read_index,uint32_t store_location,uint8_t rx_fifo,bool rx_fifo_id,uint8_t filter_index)961 static void store_rx_sequential(XlnxVersalCANFDState *s, 962 const qemu_can_frame *frame, 963 uint32_t fill_level, uint32_t read_index, 964 uint32_t store_location, uint8_t rx_fifo, 965 bool rx_fifo_id, uint8_t filter_index) 966 { 967 int i; 968 uint8_t dlc = frame->can_dlc; 969 uint8_t rx_reg_num = 0; 970 uint32_t dlc_reg_val = 0; 971 uint32_t data_reg_val = 0; 972 973 /* Getting RX0/1 fill level */ 974 if ((fill_level) > rx_fifo - 1) { 975 g_autofree char *path = object_get_canonical_path(OBJECT(s)); 976 977 qemu_log_mask(LOG_GUEST_ERROR, "%s: RX%d Buffer is full. Discarding the" 978 " message\n", path, rx_fifo_id); 979 980 /* Set the corresponding RF buffer overflow interrupt. */ 981 if (rx_fifo_id == 0) { 982 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXFOFLW, 1); 983 } else { 984 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXFOFLW_1, 1); 985 } 986 } else { 987 uint16_t rx_timestamp = CANFD_TIMER_MAX - 988 ptimer_get_count(s->canfd_timer); 989 990 if (rx_timestamp == 0xFFFF) { 991 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, TSCNT_OFLW, 1); 992 } else { 993 ARRAY_FIELD_DP32(s->regs, TIMESTAMP_REGISTER, TIMESTAMP_CNT, 994 rx_timestamp); 995 } 996 997 if (rx_fifo_id == 0) { 998 ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, FL, 999 fill_level + 1); 1000 assert(store_location <= 1001 R_RB_ID_REGISTER + (s->cfg.rx0_fifo * 1002 NUM_REGS_PER_MSG_SPACE)); 1003 } else { 1004 ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, FL_1, 1005 fill_level + 1); 1006 assert(store_location <= 1007 R_RB_ID_REGISTER_1 + (s->cfg.rx1_fifo * 1008 NUM_REGS_PER_MSG_SPACE)); 1009 } 1010 1011 s->regs[store_location] = frame_to_reg_id(frame); 1012 1013 dlc_reg_val = FIELD_DP32(0, RB_DLC_REGISTER, DLC, can_len2dlc(dlc)); 1014 1015 if (frame->flags & QEMU_CAN_FRMF_TYPE_FD) { 1016 dlc_reg_val |= FIELD_DP32(0, RB_DLC_REGISTER, FDF, 1); 1017 1018 if (frame->flags & QEMU_CAN_FRMF_BRS) { 1019 dlc_reg_val |= FIELD_DP32(0, RB_DLC_REGISTER, BRS, 1); 1020 } 1021 if (frame->flags & QEMU_CAN_FRMF_ESI) { 1022 dlc_reg_val |= FIELD_DP32(0, RB_DLC_REGISTER, ESI, 1); 1023 } 1024 } 1025 1026 dlc_reg_val |= FIELD_DP32(0, RB_DLC_REGISTER, TIMESTAMP, rx_timestamp); 1027 dlc_reg_val |= FIELD_DP32(0, RB_DLC_REGISTER, MATCHED_FILTER_INDEX, 1028 filter_index); 1029 s->regs[store_location + 1] = dlc_reg_val; 1030 1031 for (i = 0; i < dlc; i++) { 1032 /* Register size is 4 byte but frame->data each is 1 byte. */ 1033 switch (i % 4) { 1034 case 0: 1035 rx_reg_num = i / 4; 1036 1037 data_reg_val = FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTES0, 1038 frame->data[i]); 1039 break; 1040 case 1: 1041 data_reg_val |= FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTES1, 1042 frame->data[i]); 1043 break; 1044 case 2: 1045 data_reg_val |= FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTES2, 1046 frame->data[i]); 1047 break; 1048 case 3: 1049 data_reg_val |= FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTES3, 1050 frame->data[i]); 1051 /* 1052 * Last Bytes data which means we have all 4 bytes ready to 1053 * store in one rx regs. 1054 */ 1055 s->regs[store_location + rx_reg_num + 2] = data_reg_val; 1056 break; 1057 } 1058 } 1059 1060 if (i % 4) { 1061 /* 1062 * In case DLC is not multiplier of 4, data is not saved to RX FIFO 1063 * in above switch case. Store the remaining bytes here. 1064 */ 1065 s->regs[store_location + rx_reg_num + 2] = data_reg_val; 1066 } 1067 1068 /* set the interrupt as RXOK. */ 1069 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXOK, 1); 1070 } 1071 } 1072 update_rx_sequential(XlnxVersalCANFDState * s,const qemu_can_frame * frame)1073 static void update_rx_sequential(XlnxVersalCANFDState *s, 1074 const qemu_can_frame *frame) 1075 { 1076 bool filter_pass = false; 1077 uint8_t filter_index = 0; 1078 int i; 1079 int filter_partition = ARRAY_FIELD_EX32(s->regs, 1080 RX_FIFO_WATERMARK_REGISTER, RXFP); 1081 uint32_t store_location; 1082 uint32_t fill_level; 1083 uint32_t read_index; 1084 uint8_t store_index = 0; 1085 g_autofree char *path = NULL; 1086 /* 1087 * If all UAF bits are set to 0, then received messages are not stored 1088 * in the RX buffers. 1089 */ 1090 if (s->regs[R_ACCEPTANCE_FILTER_CONTROL_REGISTER]) { 1091 uint32_t acceptance_filter_status = 1092 s->regs[R_ACCEPTANCE_FILTER_CONTROL_REGISTER]; 1093 const uint32_t reg_id = frame_to_reg_id(frame); 1094 1095 for (i = 0; i < 32; i++) { 1096 if (acceptance_filter_status & 0x1) { 1097 uint32_t msg_id_masked = s->regs[R_AFMR_REGISTER + 2 * i] & 1098 reg_id; 1099 uint32_t afir_id_masked = s->regs[R_AFIR_REGISTER + 2 * i] & 1100 s->regs[R_AFMR_REGISTER + 2 * i]; 1101 uint16_t std_msg_id_masked = FIELD_EX32(msg_id_masked, 1102 AFIR_REGISTER, AIID); 1103 uint16_t std_afir_id_masked = FIELD_EX32(afir_id_masked, 1104 AFIR_REGISTER, AIID); 1105 uint32_t ext_msg_id_masked = FIELD_EX32(msg_id_masked, 1106 AFIR_REGISTER, 1107 AIID_EXT); 1108 uint32_t ext_afir_id_masked = FIELD_EX32(afir_id_masked, 1109 AFIR_REGISTER, 1110 AIID_EXT); 1111 bool ext_ide = FIELD_EX32(s->regs[R_AFMR_REGISTER + 2 * i], 1112 AFMR_REGISTER, AMIDE); 1113 1114 if (std_msg_id_masked == std_afir_id_masked) { 1115 if (ext_ide) { 1116 /* Extended message ID message. */ 1117 if (ext_msg_id_masked == ext_afir_id_masked) { 1118 filter_pass = true; 1119 filter_index = i; 1120 1121 break; 1122 } 1123 } else { 1124 /* Standard message ID. */ 1125 filter_pass = true; 1126 filter_index = i; 1127 1128 break; 1129 } 1130 } 1131 } 1132 acceptance_filter_status >>= 1; 1133 } 1134 } 1135 1136 if (!filter_pass) { 1137 path = object_get_canonical_path(OBJECT(s)); 1138 1139 trace_xlnx_canfd_rx_fifo_filter_reject(path, frame->can_id, 1140 frame->can_dlc); 1141 } else { 1142 if (filter_index <= filter_partition) { 1143 fill_level = ARRAY_FIELD_EX32(s->regs, RX_FIFO_STATUS_REGISTER, FL); 1144 read_index = ARRAY_FIELD_EX32(s->regs, RX_FIFO_STATUS_REGISTER, RI); 1145 store_index = read_index + fill_level; 1146 1147 if (store_index > s->cfg.rx0_fifo - 1) { 1148 store_index -= s->cfg.rx0_fifo; 1149 } 1150 1151 store_location = R_RB_ID_REGISTER + 1152 (store_index * NUM_REGS_PER_MSG_SPACE); 1153 1154 store_rx_sequential(s, frame, fill_level, read_index, 1155 store_location, s->cfg.rx0_fifo, 0, 1156 filter_index); 1157 } else { 1158 /* RX 1 fill level message */ 1159 fill_level = ARRAY_FIELD_EX32(s->regs, RX_FIFO_STATUS_REGISTER, 1160 FL_1); 1161 read_index = ARRAY_FIELD_EX32(s->regs, RX_FIFO_STATUS_REGISTER, 1162 RI_1); 1163 store_index = read_index + fill_level; 1164 1165 if (store_index > s->cfg.rx1_fifo - 1) { 1166 store_index -= s->cfg.rx1_fifo; 1167 } 1168 1169 store_location = R_RB_ID_REGISTER_1 + 1170 (store_index * NUM_REGS_PER_MSG_SPACE); 1171 1172 store_rx_sequential(s, frame, fill_level, read_index, 1173 store_location, s->cfg.rx1_fifo, 1, 1174 filter_index); 1175 } 1176 1177 path = object_get_canonical_path(OBJECT(s)); 1178 1179 trace_xlnx_canfd_rx_data(path, frame->can_id, frame->can_dlc, 1180 frame->flags); 1181 canfd_update_irq(s); 1182 } 1183 } 1184 tx_ready_check(XlnxVersalCANFDState * s)1185 static bool tx_ready_check(XlnxVersalCANFDState *s) 1186 { 1187 if (ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, SRST)) { 1188 g_autofree char *path = object_get_canonical_path(OBJECT(s)); 1189 1190 qemu_log_mask(LOG_GUEST_ERROR, "%s: Attempting to transfer data while" 1191 " XlnxVersalCANFDState is in reset mode\n", path); 1192 1193 return false; 1194 } 1195 1196 if (ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, CEN) == 0) { 1197 g_autofree char *path = object_get_canonical_path(OBJECT(s)); 1198 1199 qemu_log_mask(LOG_GUEST_ERROR, "%s: Attempting to transfer data while" 1200 " XlnxVersalCANFDState is in configuration mode." 1201 " Reset the core so operations can start fresh\n", 1202 path); 1203 return false; 1204 } 1205 1206 if (ARRAY_FIELD_EX32(s->regs, MODE_SELECT_REGISTER, SNOOP)) { 1207 g_autofree char *path = object_get_canonical_path(OBJECT(s)); 1208 1209 qemu_log_mask(LOG_GUEST_ERROR, "%s: Attempting to transfer data while" 1210 " XlnxVersalCANFDState is in SNOOP MODE\n", 1211 path); 1212 return false; 1213 } 1214 1215 return true; 1216 } 1217 tx_fifo_stamp(XlnxVersalCANFDState * s,uint32_t tb0_regid)1218 static void tx_fifo_stamp(XlnxVersalCANFDState *s, uint32_t tb0_regid) 1219 { 1220 /* 1221 * If EFC bit in DLC message is set, this means we will store the 1222 * event of this transmitted message with time stamp. 1223 */ 1224 uint32_t dlc_reg_val = 0; 1225 1226 if (FIELD_EX32(s->regs[tb0_regid + 1], TB0_DLC_REGISTER, EFC)) { 1227 uint8_t dlc_val = FIELD_EX32(s->regs[tb0_regid + 1], TB0_DLC_REGISTER, 1228 DLC); 1229 bool fdf_val = FIELD_EX32(s->regs[tb0_regid + 1], TB0_DLC_REGISTER, 1230 FDF); 1231 bool brs_val = FIELD_EX32(s->regs[tb0_regid + 1], TB0_DLC_REGISTER, 1232 BRS); 1233 uint8_t mm_val = FIELD_EX32(s->regs[tb0_regid + 1], TB0_DLC_REGISTER, 1234 MM); 1235 uint8_t fill_level = ARRAY_FIELD_EX32(s->regs, 1236 TX_EVENT_FIFO_STATUS_REGISTER, 1237 TXE_FL); 1238 uint8_t read_index = ARRAY_FIELD_EX32(s->regs, 1239 TX_EVENT_FIFO_STATUS_REGISTER, 1240 TXE_RI); 1241 uint8_t store_index = fill_level + read_index; 1242 1243 if ((fill_level) > s->cfg.tx_fifo - 1) { 1244 qemu_log_mask(LOG_GUEST_ERROR, "TX Event Buffer is full." 1245 " Discarding the message\n"); 1246 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, TXEOFLW, 1); 1247 } else { 1248 if (store_index > s->cfg.tx_fifo - 1) { 1249 store_index -= s->cfg.tx_fifo; 1250 } 1251 1252 assert(store_index < s->cfg.tx_fifo); 1253 1254 uint32_t tx_event_reg0_id = R_TXE_FIFO_TB_ID_REGISTER + 1255 (store_index * 2); 1256 1257 /* Store message ID in TX event register. */ 1258 s->regs[tx_event_reg0_id] = s->regs[tb0_regid]; 1259 1260 uint16_t tx_timestamp = CANFD_TIMER_MAX - 1261 ptimer_get_count(s->canfd_timer); 1262 1263 /* Store DLC with time stamp in DLC regs. */ 1264 dlc_reg_val = FIELD_DP32(0, TXE_FIFO_TB_DLC_REGISTER, DLC, dlc_val); 1265 dlc_reg_val |= FIELD_DP32(0, TXE_FIFO_TB_DLC_REGISTER, FDF, 1266 fdf_val); 1267 dlc_reg_val |= FIELD_DP32(0, TXE_FIFO_TB_DLC_REGISTER, BRS, 1268 brs_val); 1269 dlc_reg_val |= FIELD_DP32(0, TXE_FIFO_TB_DLC_REGISTER, ET, 0x3); 1270 dlc_reg_val |= FIELD_DP32(0, TXE_FIFO_TB_DLC_REGISTER, MM, mm_val); 1271 dlc_reg_val |= FIELD_DP32(0, TXE_FIFO_TB_DLC_REGISTER, TIMESTAMP, 1272 tx_timestamp); 1273 s->regs[tx_event_reg0_id + 1] = dlc_reg_val; 1274 1275 ARRAY_FIELD_DP32(s->regs, TX_EVENT_FIFO_STATUS_REGISTER, TXE_FL, 1276 fill_level + 1); 1277 } 1278 } 1279 } 1280 g_cmp_ids(gconstpointer data1,gconstpointer data2)1281 static gint g_cmp_ids(gconstpointer data1, gconstpointer data2) 1282 { 1283 tx_ready_reg_info *tx_reg_1 = (tx_ready_reg_info *) data1; 1284 tx_ready_reg_info *tx_reg_2 = (tx_ready_reg_info *) data2; 1285 1286 if (tx_reg_1->can_id == tx_reg_2->can_id) { 1287 return (tx_reg_1->reg_num < tx_reg_2->reg_num) ? -1 : 1; 1288 } 1289 return (tx_reg_1->can_id < tx_reg_2->can_id) ? -1 : 1; 1290 } 1291 free_list(GSList * list)1292 static void free_list(GSList *list) 1293 { 1294 GSList *iterator = NULL; 1295 1296 for (iterator = list; iterator != NULL; iterator = iterator->next) { 1297 g_free((tx_ready_reg_info *)iterator->data); 1298 } 1299 1300 g_slist_free(list); 1301 1302 return; 1303 } 1304 prepare_tx_data(XlnxVersalCANFDState * s)1305 static GSList *prepare_tx_data(XlnxVersalCANFDState *s) 1306 { 1307 uint8_t i = 0; 1308 GSList *list = NULL; 1309 uint32_t reg_num = 0; 1310 uint32_t reg_ready = s->regs[R_TX_BUFFER_READY_REQUEST_REGISTER]; 1311 1312 /* First find the messages which are ready for transmission. */ 1313 for (i = 0; i < s->cfg.tx_fifo; i++) { 1314 if (reg_ready & 1) { 1315 reg_num = R_TB_ID_REGISTER + (NUM_REGS_PER_MSG_SPACE * i); 1316 tx_ready_reg_info *temp = g_new(tx_ready_reg_info, 1); 1317 1318 temp->can_id = s->regs[reg_num]; 1319 temp->reg_num = reg_num; 1320 list = g_slist_prepend(list, temp); 1321 list = g_slist_sort(list, g_cmp_ids); 1322 } 1323 1324 reg_ready >>= 1; 1325 } 1326 1327 s->regs[R_TX_BUFFER_READY_REQUEST_REGISTER] = 0; 1328 s->regs[R_TX_BUFFER_CANCEL_REQUEST_REGISTER] = 0; 1329 1330 return list; 1331 } 1332 transfer_data(XlnxVersalCANFDState * s)1333 static void transfer_data(XlnxVersalCANFDState *s) 1334 { 1335 bool canfd_tx = tx_ready_check(s); 1336 GSList *list, *iterator = NULL; 1337 qemu_can_frame frame; 1338 1339 if (!canfd_tx) { 1340 g_autofree char *path = object_get_canonical_path(OBJECT(s)); 1341 1342 qemu_log_mask(LOG_GUEST_ERROR, "%s: Controller not enabled for data" 1343 " transfer\n", path); 1344 return; 1345 } 1346 1347 list = prepare_tx_data(s); 1348 if (list == NULL) { 1349 return; 1350 } 1351 1352 for (iterator = list; iterator != NULL; iterator = iterator->next) { 1353 regs2frame(s, &frame, 1354 ((tx_ready_reg_info *)iterator->data)->reg_num); 1355 1356 if (ARRAY_FIELD_EX32(s->regs, STATUS_REGISTER, LBACK)) { 1357 update_rx_sequential(s, &frame); 1358 tx_fifo_stamp(s, ((tx_ready_reg_info *)iterator->data)->reg_num); 1359 1360 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXOK, 1); 1361 } else { 1362 g_autofree char *path = object_get_canonical_path(OBJECT(s)); 1363 1364 trace_xlnx_canfd_tx_data(path, frame.can_id, frame.can_dlc, 1365 frame.flags); 1366 can_bus_client_send(&s->bus_client, &frame, 1); 1367 tx_fifo_stamp(s, 1368 ((tx_ready_reg_info *)iterator->data)->reg_num); 1369 1370 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, TXRRS, 1); 1371 1372 if (ARRAY_FIELD_EX32(s->regs, STATUS_REGISTER, SLEEP)) { 1373 canfd_exit_sleep_mode(s); 1374 } 1375 } 1376 } 1377 1378 ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, TXOK, 1); 1379 free_list(list); 1380 1381 canfd_update_irq(s); 1382 } 1383 canfd_srr_pre_write(RegisterInfo * reg,uint64_t val64)1384 static uint64_t canfd_srr_pre_write(RegisterInfo *reg, uint64_t val64) 1385 { 1386 XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); 1387 uint32_t val = val64; 1388 1389 ARRAY_FIELD_DP32(s->regs, SOFTWARE_RESET_REGISTER, CEN, 1390 FIELD_EX32(val, SOFTWARE_RESET_REGISTER, CEN)); 1391 1392 if (FIELD_EX32(val, SOFTWARE_RESET_REGISTER, SRST)) { 1393 g_autofree char *path = object_get_canonical_path(OBJECT(s)); 1394 1395 trace_xlnx_canfd_reset(path, val64); 1396 1397 /* First, core will do software reset then will enter in config mode. */ 1398 canfd_config_reset(s); 1399 } else if (ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, CEN) == 0) { 1400 canfd_config_mode(s); 1401 } else { 1402 /* 1403 * Leave config mode. Now XlnxVersalCANFD core will enter Normal, Sleep, 1404 * snoop or Loopback mode depending upon LBACK, SLEEP, SNOOP register 1405 * states. 1406 */ 1407 ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, CONFIG, 0); 1408 1409 ptimer_transaction_begin(s->canfd_timer); 1410 ptimer_set_count(s->canfd_timer, 0); 1411 ptimer_transaction_commit(s->canfd_timer); 1412 update_status_register_mode_bits(s); 1413 transfer_data(s); 1414 } 1415 1416 return s->regs[R_SOFTWARE_RESET_REGISTER]; 1417 } 1418 filter_mask(RegisterInfo * reg,uint64_t val64)1419 static uint64_t filter_mask(RegisterInfo *reg, uint64_t val64) 1420 { 1421 XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); 1422 uint32_t reg_idx = (reg->access->addr) / 4; 1423 uint32_t val = val64; 1424 uint32_t filter_offset = (reg_idx - R_AFMR_REGISTER) / 2; 1425 1426 if (!(s->regs[R_ACCEPTANCE_FILTER_CONTROL_REGISTER] & 1427 (1 << filter_offset))) { 1428 s->regs[reg_idx] = val; 1429 } else { 1430 g_autofree char *path = object_get_canonical_path(OBJECT(s)); 1431 1432 qemu_log_mask(LOG_GUEST_ERROR, "%s: Acceptance filter %d not enabled\n", 1433 path, filter_offset + 1); 1434 } 1435 1436 return s->regs[reg_idx]; 1437 } 1438 filter_id(RegisterInfo * reg,uint64_t val64)1439 static uint64_t filter_id(RegisterInfo *reg, uint64_t val64) 1440 { 1441 XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); 1442 hwaddr reg_idx = (reg->access->addr) / 4; 1443 uint32_t val = val64; 1444 uint32_t filter_offset = (reg_idx - R_AFIR_REGISTER) / 2; 1445 1446 if (!(s->regs[R_ACCEPTANCE_FILTER_CONTROL_REGISTER] & 1447 (1 << filter_offset))) { 1448 s->regs[reg_idx] = val; 1449 } else { 1450 g_autofree char *path = object_get_canonical_path(OBJECT(s)); 1451 1452 qemu_log_mask(LOG_GUEST_ERROR, "%s: Acceptance filter %d not enabled\n", 1453 path, filter_offset + 1); 1454 } 1455 1456 return s->regs[reg_idx]; 1457 } 1458 canfd_tx_fifo_status_prew(RegisterInfo * reg,uint64_t val64)1459 static uint64_t canfd_tx_fifo_status_prew(RegisterInfo *reg, uint64_t val64) 1460 { 1461 XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); 1462 uint32_t val = val64; 1463 uint8_t read_ind = 0; 1464 uint8_t fill_ind = ARRAY_FIELD_EX32(s->regs, TX_EVENT_FIFO_STATUS_REGISTER, 1465 TXE_FL); 1466 1467 if (FIELD_EX32(val, TX_EVENT_FIFO_STATUS_REGISTER, TXE_IRI) && fill_ind) { 1468 read_ind = ARRAY_FIELD_EX32(s->regs, TX_EVENT_FIFO_STATUS_REGISTER, 1469 TXE_RI) + 1; 1470 1471 if (read_ind > s->cfg.tx_fifo - 1) { 1472 read_ind = 0; 1473 } 1474 1475 /* 1476 * Increase the read index by 1 and decrease the fill level by 1. 1477 */ 1478 ARRAY_FIELD_DP32(s->regs, TX_EVENT_FIFO_STATUS_REGISTER, TXE_RI, 1479 read_ind); 1480 ARRAY_FIELD_DP32(s->regs, TX_EVENT_FIFO_STATUS_REGISTER, TXE_FL, 1481 fill_ind - 1); 1482 } 1483 1484 return s->regs[R_TX_EVENT_FIFO_STATUS_REGISTER]; 1485 } 1486 canfd_rx_fifo_status_prew(RegisterInfo * reg,uint64_t val64)1487 static uint64_t canfd_rx_fifo_status_prew(RegisterInfo *reg, uint64_t val64) 1488 { 1489 XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); 1490 uint32_t val = val64; 1491 uint8_t read_ind = 0; 1492 uint8_t fill_ind = 0; 1493 1494 if (FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, IRI)) { 1495 /* FL index is zero, setting IRI bit has no effect. */ 1496 if (FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, FL) != 0) { 1497 read_ind = FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, RI) + 1; 1498 1499 if (read_ind > s->cfg.rx0_fifo - 1) { 1500 read_ind = 0; 1501 } 1502 1503 fill_ind = FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, FL) - 1; 1504 1505 ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, RI, read_ind); 1506 ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, FL, fill_ind); 1507 } 1508 } 1509 1510 if (FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, IRI_1)) { 1511 /* FL_1 index is zero, setting IRI_1 bit has no effect. */ 1512 if (FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, FL_1) != 0) { 1513 read_ind = FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, RI_1) + 1; 1514 1515 if (read_ind > s->cfg.rx1_fifo - 1) { 1516 read_ind = 0; 1517 } 1518 1519 fill_ind = FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, FL_1) - 1; 1520 1521 ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, RI_1, read_ind); 1522 ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, FL_1, fill_ind); 1523 } 1524 } 1525 1526 return s->regs[R_RX_FIFO_STATUS_REGISTER]; 1527 } 1528 canfd_tsr_pre_write(RegisterInfo * reg,uint64_t val64)1529 static uint64_t canfd_tsr_pre_write(RegisterInfo *reg, uint64_t val64) 1530 { 1531 XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); 1532 uint32_t val = val64; 1533 1534 if (FIELD_EX32(val, TIMESTAMP_REGISTER, CTS)) { 1535 ARRAY_FIELD_DP32(s->regs, TIMESTAMP_REGISTER, TIMESTAMP_CNT, 0); 1536 ptimer_transaction_begin(s->canfd_timer); 1537 ptimer_set_count(s->canfd_timer, 0); 1538 ptimer_transaction_commit(s->canfd_timer); 1539 } 1540 1541 return 0; 1542 } 1543 canfd_trr_reg_prew(RegisterInfo * reg,uint64_t val64)1544 static uint64_t canfd_trr_reg_prew(RegisterInfo *reg, uint64_t val64) 1545 { 1546 XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); 1547 1548 if (ARRAY_FIELD_EX32(s->regs, MODE_SELECT_REGISTER, SNOOP)) { 1549 g_autofree char *path = object_get_canonical_path(OBJECT(s)); 1550 1551 qemu_log_mask(LOG_GUEST_ERROR, "%s: Controller is in SNOOP mode." 1552 " tx_ready_register will stay in reset mode\n", path); 1553 return 0; 1554 } else { 1555 return val64; 1556 } 1557 } 1558 canfd_trr_reg_postw(RegisterInfo * reg,uint64_t val64)1559 static void canfd_trr_reg_postw(RegisterInfo *reg, uint64_t val64) 1560 { 1561 XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); 1562 1563 transfer_data(s); 1564 } 1565 canfd_cancel_reg_postw(RegisterInfo * reg,uint64_t val64)1566 static void canfd_cancel_reg_postw(RegisterInfo *reg, uint64_t val64) 1567 { 1568 XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); 1569 1570 process_cancellation_requests(s); 1571 } 1572 canfd_write_check_prew(RegisterInfo * reg,uint64_t val64)1573 static uint64_t canfd_write_check_prew(RegisterInfo *reg, uint64_t val64) 1574 { 1575 XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); 1576 uint32_t val = val64; 1577 1578 if (ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, CEN) == 0) { 1579 return val; 1580 } 1581 return 0; 1582 } 1583 1584 static const RegisterAccessInfo canfd_tx_regs[] = { 1585 { .name = "TB_ID_REGISTER", .addr = A_TB_ID_REGISTER, 1586 },{ .name = "TB0_DLC_REGISTER", .addr = A_TB0_DLC_REGISTER, 1587 },{ .name = "TB_DW0_REGISTER", .addr = A_TB_DW0_REGISTER, 1588 },{ .name = "TB_DW1_REGISTER", .addr = A_TB_DW1_REGISTER, 1589 },{ .name = "TB_DW2_REGISTER", .addr = A_TB_DW2_REGISTER, 1590 },{ .name = "TB_DW3_REGISTER", .addr = A_TB_DW3_REGISTER, 1591 },{ .name = "TB_DW4_REGISTER", .addr = A_TB_DW4_REGISTER, 1592 },{ .name = "TB_DW5_REGISTER", .addr = A_TB_DW5_REGISTER, 1593 },{ .name = "TB_DW6_REGISTER", .addr = A_TB_DW6_REGISTER, 1594 },{ .name = "TB_DW7_REGISTER", .addr = A_TB_DW7_REGISTER, 1595 },{ .name = "TB_DW8_REGISTER", .addr = A_TB_DW8_REGISTER, 1596 },{ .name = "TB_DW9_REGISTER", .addr = A_TB_DW9_REGISTER, 1597 },{ .name = "TB_DW10_REGISTER", .addr = A_TB_DW10_REGISTER, 1598 },{ .name = "TB_DW11_REGISTER", .addr = A_TB_DW11_REGISTER, 1599 },{ .name = "TB_DW12_REGISTER", .addr = A_TB_DW12_REGISTER, 1600 },{ .name = "TB_DW13_REGISTER", .addr = A_TB_DW13_REGISTER, 1601 },{ .name = "TB_DW14_REGISTER", .addr = A_TB_DW14_REGISTER, 1602 },{ .name = "TB_DW15_REGISTER", .addr = A_TB_DW15_REGISTER, 1603 } 1604 }; 1605 1606 static const RegisterAccessInfo canfd_rx0_regs[] = { 1607 { .name = "RB_ID_REGISTER", .addr = A_RB_ID_REGISTER, 1608 .ro = 0xffffffff, 1609 },{ .name = "RB_DLC_REGISTER", .addr = A_RB_DLC_REGISTER, 1610 .ro = 0xfe1fffff, 1611 },{ .name = "RB_DW0_REGISTER", .addr = A_RB_DW0_REGISTER, 1612 .ro = 0xffffffff, 1613 },{ .name = "RB_DW1_REGISTER", .addr = A_RB_DW1_REGISTER, 1614 .ro = 0xffffffff, 1615 },{ .name = "RB_DW2_REGISTER", .addr = A_RB_DW2_REGISTER, 1616 .ro = 0xffffffff, 1617 },{ .name = "RB_DW3_REGISTER", .addr = A_RB_DW3_REGISTER, 1618 .ro = 0xffffffff, 1619 },{ .name = "RB_DW4_REGISTER", .addr = A_RB_DW4_REGISTER, 1620 .ro = 0xffffffff, 1621 },{ .name = "RB_DW5_REGISTER", .addr = A_RB_DW5_REGISTER, 1622 .ro = 0xffffffff, 1623 },{ .name = "RB_DW6_REGISTER", .addr = A_RB_DW6_REGISTER, 1624 .ro = 0xffffffff, 1625 },{ .name = "RB_DW7_REGISTER", .addr = A_RB_DW7_REGISTER, 1626 .ro = 0xffffffff, 1627 },{ .name = "RB_DW8_REGISTER", .addr = A_RB_DW8_REGISTER, 1628 .ro = 0xffffffff, 1629 },{ .name = "RB_DW9_REGISTER", .addr = A_RB_DW9_REGISTER, 1630 .ro = 0xffffffff, 1631 },{ .name = "RB_DW10_REGISTER", .addr = A_RB_DW10_REGISTER, 1632 .ro = 0xffffffff, 1633 },{ .name = "RB_DW11_REGISTER", .addr = A_RB_DW11_REGISTER, 1634 .ro = 0xffffffff, 1635 },{ .name = "RB_DW12_REGISTER", .addr = A_RB_DW12_REGISTER, 1636 .ro = 0xffffffff, 1637 },{ .name = "RB_DW13_REGISTER", .addr = A_RB_DW13_REGISTER, 1638 .ro = 0xffffffff, 1639 },{ .name = "RB_DW14_REGISTER", .addr = A_RB_DW14_REGISTER, 1640 .ro = 0xffffffff, 1641 },{ .name = "RB_DW15_REGISTER", .addr = A_RB_DW15_REGISTER, 1642 .ro = 0xffffffff, 1643 } 1644 }; 1645 1646 static const RegisterAccessInfo canfd_rx1_regs[] = { 1647 { .name = "RB_ID_REGISTER_1", .addr = A_RB_ID_REGISTER_1, 1648 .ro = 0xffffffff, 1649 },{ .name = "RB_DLC_REGISTER_1", .addr = A_RB_DLC_REGISTER_1, 1650 .ro = 0xfe1fffff, 1651 },{ .name = "RB0_DW0_REGISTER_1", .addr = A_RB0_DW0_REGISTER_1, 1652 .ro = 0xffffffff, 1653 },{ .name = "RB_DW1_REGISTER_1", .addr = A_RB_DW1_REGISTER_1, 1654 .ro = 0xffffffff, 1655 },{ .name = "RB_DW2_REGISTER_1", .addr = A_RB_DW2_REGISTER_1, 1656 .ro = 0xffffffff, 1657 },{ .name = "RB_DW3_REGISTER_1", .addr = A_RB_DW3_REGISTER_1, 1658 .ro = 0xffffffff, 1659 },{ .name = "RB_DW4_REGISTER_1", .addr = A_RB_DW4_REGISTER_1, 1660 .ro = 0xffffffff, 1661 },{ .name = "RB_DW5_REGISTER_1", .addr = A_RB_DW5_REGISTER_1, 1662 .ro = 0xffffffff, 1663 },{ .name = "RB_DW6_REGISTER_1", .addr = A_RB_DW6_REGISTER_1, 1664 .ro = 0xffffffff, 1665 },{ .name = "RB_DW7_REGISTER_1", .addr = A_RB_DW7_REGISTER_1, 1666 .ro = 0xffffffff, 1667 },{ .name = "RB_DW8_REGISTER_1", .addr = A_RB_DW8_REGISTER_1, 1668 .ro = 0xffffffff, 1669 },{ .name = "RB_DW9_REGISTER_1", .addr = A_RB_DW9_REGISTER_1, 1670 .ro = 0xffffffff, 1671 },{ .name = "RB_DW10_REGISTER_1", .addr = A_RB_DW10_REGISTER_1, 1672 .ro = 0xffffffff, 1673 },{ .name = "RB_DW11_REGISTER_1", .addr = A_RB_DW11_REGISTER_1, 1674 .ro = 0xffffffff, 1675 },{ .name = "RB_DW12_REGISTER_1", .addr = A_RB_DW12_REGISTER_1, 1676 .ro = 0xffffffff, 1677 },{ .name = "RB_DW13_REGISTER_1", .addr = A_RB_DW13_REGISTER_1, 1678 .ro = 0xffffffff, 1679 },{ .name = "RB_DW14_REGISTER_1", .addr = A_RB_DW14_REGISTER_1, 1680 .ro = 0xffffffff, 1681 },{ .name = "RB_DW15_REGISTER_1", .addr = A_RB_DW15_REGISTER_1, 1682 .ro = 0xffffffff, 1683 } 1684 }; 1685 1686 /* Acceptance filter registers. */ 1687 static const RegisterAccessInfo canfd_af_regs[] = { 1688 { .name = "AFMR_REGISTER", .addr = A_AFMR_REGISTER, 1689 .pre_write = filter_mask, 1690 },{ .name = "AFIR_REGISTER", .addr = A_AFIR_REGISTER, 1691 .pre_write = filter_id, 1692 } 1693 }; 1694 1695 static const RegisterAccessInfo canfd_txe_regs[] = { 1696 { .name = "TXE_FIFO_TB_ID_REGISTER", .addr = A_TXE_FIFO_TB_ID_REGISTER, 1697 .ro = 0xffffffff, 1698 },{ .name = "TXE_FIFO_TB_DLC_REGISTER", .addr = A_TXE_FIFO_TB_DLC_REGISTER, 1699 .ro = 0xffffffff, 1700 } 1701 }; 1702 1703 static const RegisterAccessInfo canfd_regs_info[] = { 1704 { .name = "SOFTWARE_RESET_REGISTER", .addr = A_SOFTWARE_RESET_REGISTER, 1705 .pre_write = canfd_srr_pre_write, 1706 },{ .name = "MODE_SELECT_REGISTER", .addr = A_MODE_SELECT_REGISTER, 1707 .pre_write = canfd_msr_pre_write, 1708 },{ .name = "ARBITRATION_PHASE_BAUD_RATE_PRESCALER_REGISTER", 1709 .addr = A_ARBITRATION_PHASE_BAUD_RATE_PRESCALER_REGISTER, 1710 .pre_write = canfd_write_check_prew, 1711 },{ .name = "ARBITRATION_PHASE_BIT_TIMING_REGISTER", 1712 .addr = A_ARBITRATION_PHASE_BIT_TIMING_REGISTER, 1713 .pre_write = canfd_write_check_prew, 1714 },{ .name = "ERROR_COUNTER_REGISTER", .addr = A_ERROR_COUNTER_REGISTER, 1715 .ro = 0xffff, 1716 },{ .name = "ERROR_STATUS_REGISTER", .addr = A_ERROR_STATUS_REGISTER, 1717 .w1c = 0xf1f, 1718 },{ .name = "STATUS_REGISTER", .addr = A_STATUS_REGISTER, 1719 .reset = 0x1, 1720 .ro = 0x7f17ff, 1721 },{ .name = "INTERRUPT_STATUS_REGISTER", 1722 .addr = A_INTERRUPT_STATUS_REGISTER, 1723 .ro = 0xffffff7f, 1724 },{ .name = "INTERRUPT_ENABLE_REGISTER", 1725 .addr = A_INTERRUPT_ENABLE_REGISTER, 1726 .post_write = canfd_ier_post_write, 1727 },{ .name = "INTERRUPT_CLEAR_REGISTER", 1728 .addr = A_INTERRUPT_CLEAR_REGISTER, .pre_write = canfd_icr_pre_write, 1729 },{ .name = "TIMESTAMP_REGISTER", .addr = A_TIMESTAMP_REGISTER, 1730 .ro = 0xffff0000, 1731 .pre_write = canfd_tsr_pre_write, 1732 },{ .name = "DATA_PHASE_BAUD_RATE_PRESCALER_REGISTER", 1733 .addr = A_DATA_PHASE_BAUD_RATE_PRESCALER_REGISTER, 1734 .pre_write = canfd_write_check_prew, 1735 },{ .name = "DATA_PHASE_BIT_TIMING_REGISTER", 1736 .addr = A_DATA_PHASE_BIT_TIMING_REGISTER, 1737 .pre_write = canfd_write_check_prew, 1738 },{ .name = "TX_BUFFER_READY_REQUEST_REGISTER", 1739 .addr = A_TX_BUFFER_READY_REQUEST_REGISTER, 1740 .pre_write = canfd_trr_reg_prew, 1741 .post_write = canfd_trr_reg_postw, 1742 },{ .name = "INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER", 1743 .addr = A_INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, 1744 },{ .name = "TX_BUFFER_CANCEL_REQUEST_REGISTER", 1745 .addr = A_TX_BUFFER_CANCEL_REQUEST_REGISTER, 1746 .post_write = canfd_cancel_reg_postw, 1747 },{ .name = "INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER", 1748 .addr = A_INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, 1749 },{ .name = "TX_EVENT_FIFO_STATUS_REGISTER", 1750 .addr = A_TX_EVENT_FIFO_STATUS_REGISTER, 1751 .ro = 0x3f1f, .pre_write = canfd_tx_fifo_status_prew, 1752 },{ .name = "TX_EVENT_FIFO_WATERMARK_REGISTER", 1753 .addr = A_TX_EVENT_FIFO_WATERMARK_REGISTER, 1754 .reset = 0xf, 1755 .pre_write = canfd_write_check_prew, 1756 },{ .name = "ACCEPTANCE_FILTER_CONTROL_REGISTER", 1757 .addr = A_ACCEPTANCE_FILTER_CONTROL_REGISTER, 1758 },{ .name = "RX_FIFO_STATUS_REGISTER", .addr = A_RX_FIFO_STATUS_REGISTER, 1759 .ro = 0x7f3f7f3f, .pre_write = canfd_rx_fifo_status_prew, 1760 },{ .name = "RX_FIFO_WATERMARK_REGISTER", 1761 .addr = A_RX_FIFO_WATERMARK_REGISTER, 1762 .reset = 0x1f0f0f, 1763 .pre_write = canfd_write_check_prew, 1764 } 1765 }; 1766 xlnx_versal_canfd_ptimer_cb(void * opaque)1767 static void xlnx_versal_canfd_ptimer_cb(void *opaque) 1768 { 1769 /* No action required on the timer rollover. */ 1770 } 1771 1772 static const MemoryRegionOps canfd_ops = { 1773 .read = register_read_memory, 1774 .write = register_write_memory, 1775 .endianness = DEVICE_LITTLE_ENDIAN, 1776 .valid = { 1777 .min_access_size = 4, 1778 .max_access_size = 4, 1779 }, 1780 }; 1781 canfd_reset(DeviceState * dev)1782 static void canfd_reset(DeviceState *dev) 1783 { 1784 XlnxVersalCANFDState *s = XILINX_CANFD(dev); 1785 unsigned int i; 1786 1787 for (i = 0; i < ARRAY_SIZE(s->reg_info); ++i) { 1788 register_reset(&s->reg_info[i]); 1789 } 1790 1791 ptimer_transaction_begin(s->canfd_timer); 1792 ptimer_set_count(s->canfd_timer, 0); 1793 ptimer_transaction_commit(s->canfd_timer); 1794 } 1795 can_xilinx_canfd_receive(CanBusClientState * client)1796 static bool can_xilinx_canfd_receive(CanBusClientState *client) 1797 { 1798 XlnxVersalCANFDState *s = container_of(client, XlnxVersalCANFDState, 1799 bus_client); 1800 1801 bool reset_state = ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, SRST); 1802 bool can_enabled = ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, CEN); 1803 1804 return !reset_state && can_enabled; 1805 } 1806 canfd_xilinx_receive(CanBusClientState * client,const qemu_can_frame * buf,size_t buf_size)1807 static ssize_t canfd_xilinx_receive(CanBusClientState *client, 1808 const qemu_can_frame *buf, 1809 size_t buf_size) 1810 { 1811 XlnxVersalCANFDState *s = container_of(client, XlnxVersalCANFDState, 1812 bus_client); 1813 const qemu_can_frame *frame = buf; 1814 1815 assert(buf_size > 0); 1816 1817 if (ARRAY_FIELD_EX32(s->regs, STATUS_REGISTER, LBACK)) { 1818 /* 1819 * XlnxVersalCANFDState will not participate in normal bus communication 1820 * and does not receive any messages transmitted by other CAN nodes. 1821 */ 1822 return 1; 1823 } 1824 1825 /* Update the status register that we are receiving message. */ 1826 ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, BBSY, 1); 1827 1828 if (ARRAY_FIELD_EX32(s->regs, STATUS_REGISTER, SNOOP)) { 1829 /* Snoop Mode: Just keep the data. no response back. */ 1830 update_rx_sequential(s, frame); 1831 } else { 1832 if ((ARRAY_FIELD_EX32(s->regs, STATUS_REGISTER, SLEEP))) { 1833 /* 1834 * XlnxVersalCANFDState is in sleep mode. Any data on bus will bring 1835 * it to the wake up state. 1836 */ 1837 canfd_exit_sleep_mode(s); 1838 } 1839 1840 update_rx_sequential(s, frame); 1841 } 1842 1843 /* Message processing done. Update the status back to !busy */ 1844 ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, BBSY, 0); 1845 return 1; 1846 } 1847 1848 static CanBusClientInfo canfd_xilinx_bus_client_info = { 1849 .can_receive = can_xilinx_canfd_receive, 1850 .receive = canfd_xilinx_receive, 1851 }; 1852 xlnx_canfd_connect_to_bus(XlnxVersalCANFDState * s,CanBusState * bus)1853 static int xlnx_canfd_connect_to_bus(XlnxVersalCANFDState *s, 1854 CanBusState *bus) 1855 { 1856 s->bus_client.info = &canfd_xilinx_bus_client_info; 1857 1858 return can_bus_insert_client(bus, &s->bus_client); 1859 } 1860 1861 #define NUM_REG_PER_AF ARRAY_SIZE(canfd_af_regs) 1862 #define NUM_AF 32 1863 #define NUM_REG_PER_TXE ARRAY_SIZE(canfd_txe_regs) 1864 #define NUM_TXE 32 1865 canfd_populate_regarray(XlnxVersalCANFDState * s,RegisterInfoArray * r_array,int pos,const RegisterAccessInfo * rae,int num_rae)1866 static int canfd_populate_regarray(XlnxVersalCANFDState *s, 1867 RegisterInfoArray *r_array, int pos, 1868 const RegisterAccessInfo *rae, 1869 int num_rae) 1870 { 1871 int i; 1872 1873 for (i = 0; i < num_rae; i++) { 1874 int index = rae[i].addr / 4; 1875 RegisterInfo *r = &s->reg_info[index]; 1876 1877 object_initialize(r, sizeof(*r), TYPE_REGISTER); 1878 1879 *r = (RegisterInfo) { 1880 .data = &s->regs[index], 1881 .data_size = sizeof(uint32_t), 1882 .access = &rae[i], 1883 .opaque = OBJECT(s), 1884 }; 1885 1886 r_array->r[i + pos] = r; 1887 } 1888 return i + pos; 1889 } 1890 canfd_create_rai(RegisterAccessInfo * rai_array,const RegisterAccessInfo * canfd_regs,int template_rai_array_sz,int num_template_to_copy)1891 static void canfd_create_rai(RegisterAccessInfo *rai_array, 1892 const RegisterAccessInfo *canfd_regs, 1893 int template_rai_array_sz, 1894 int num_template_to_copy) 1895 { 1896 int i; 1897 int reg_num; 1898 1899 for (reg_num = 0; reg_num < num_template_to_copy; reg_num++) { 1900 int pos = reg_num * template_rai_array_sz; 1901 1902 memcpy(rai_array + pos, canfd_regs, 1903 template_rai_array_sz * sizeof(RegisterAccessInfo)); 1904 1905 for (i = 0; i < template_rai_array_sz; i++) { 1906 const char *name = canfd_regs[i].name; 1907 uint64_t addr = canfd_regs[i].addr; 1908 rai_array[i + pos].name = g_strdup_printf("%s%d", name, reg_num); 1909 rai_array[i + pos].addr = addr + pos * 4; 1910 } 1911 } 1912 } 1913 canfd_create_regarray(XlnxVersalCANFDState * s)1914 static RegisterInfoArray *canfd_create_regarray(XlnxVersalCANFDState *s) 1915 { 1916 const char *device_prefix = object_get_typename(OBJECT(s)); 1917 uint64_t memory_size = XLNX_VERSAL_CANFD_R_MAX * 4; 1918 int num_regs; 1919 int pos = 0; 1920 RegisterInfoArray *r_array; 1921 1922 num_regs = ARRAY_SIZE(canfd_regs_info) + 1923 s->cfg.tx_fifo * NUM_REGS_PER_MSG_SPACE + 1924 s->cfg.rx0_fifo * NUM_REGS_PER_MSG_SPACE + 1925 NUM_AF * NUM_REG_PER_AF + 1926 NUM_TXE * NUM_REG_PER_TXE; 1927 1928 s->tx_regs = g_new0(RegisterAccessInfo, 1929 s->cfg.tx_fifo * ARRAY_SIZE(canfd_tx_regs)); 1930 1931 canfd_create_rai(s->tx_regs, canfd_tx_regs, 1932 ARRAY_SIZE(canfd_tx_regs), s->cfg.tx_fifo); 1933 1934 s->rx0_regs = g_new0(RegisterAccessInfo, 1935 s->cfg.rx0_fifo * ARRAY_SIZE(canfd_rx0_regs)); 1936 1937 canfd_create_rai(s->rx0_regs, canfd_rx0_regs, 1938 ARRAY_SIZE(canfd_rx0_regs), s->cfg.rx0_fifo); 1939 1940 s->af_regs = g_new0(RegisterAccessInfo, 1941 NUM_AF * ARRAY_SIZE(canfd_af_regs)); 1942 1943 canfd_create_rai(s->af_regs, canfd_af_regs, 1944 ARRAY_SIZE(canfd_af_regs), NUM_AF); 1945 1946 s->txe_regs = g_new0(RegisterAccessInfo, 1947 NUM_TXE * ARRAY_SIZE(canfd_txe_regs)); 1948 1949 canfd_create_rai(s->txe_regs, canfd_txe_regs, 1950 ARRAY_SIZE(canfd_txe_regs), NUM_TXE); 1951 1952 if (s->cfg.enable_rx_fifo1) { 1953 num_regs += s->cfg.rx1_fifo * NUM_REGS_PER_MSG_SPACE; 1954 1955 s->rx1_regs = g_new0(RegisterAccessInfo, 1956 s->cfg.rx1_fifo * ARRAY_SIZE(canfd_rx1_regs)); 1957 1958 canfd_create_rai(s->rx1_regs, canfd_rx1_regs, 1959 ARRAY_SIZE(canfd_rx1_regs), s->cfg.rx1_fifo); 1960 } 1961 1962 r_array = g_new0(RegisterInfoArray, 1); 1963 r_array->r = g_new0(RegisterInfo * , num_regs); 1964 r_array->num_elements = num_regs; 1965 r_array->prefix = device_prefix; 1966 1967 pos = canfd_populate_regarray(s, r_array, pos, 1968 canfd_regs_info, 1969 ARRAY_SIZE(canfd_regs_info)); 1970 pos = canfd_populate_regarray(s, r_array, pos, 1971 s->tx_regs, s->cfg.tx_fifo * 1972 NUM_REGS_PER_MSG_SPACE); 1973 pos = canfd_populate_regarray(s, r_array, pos, 1974 s->rx0_regs, s->cfg.rx0_fifo * 1975 NUM_REGS_PER_MSG_SPACE); 1976 if (s->cfg.enable_rx_fifo1) { 1977 pos = canfd_populate_regarray(s, r_array, pos, 1978 s->rx1_regs, s->cfg.rx1_fifo * 1979 NUM_REGS_PER_MSG_SPACE); 1980 } 1981 pos = canfd_populate_regarray(s, r_array, pos, 1982 s->af_regs, NUM_AF * NUM_REG_PER_AF); 1983 pos = canfd_populate_regarray(s, r_array, pos, 1984 s->txe_regs, NUM_TXE * NUM_REG_PER_TXE); 1985 1986 memory_region_init_io(&r_array->mem, OBJECT(s), &canfd_ops, r_array, 1987 device_prefix, memory_size); 1988 return r_array; 1989 } 1990 canfd_realize(DeviceState * dev,Error ** errp)1991 static void canfd_realize(DeviceState *dev, Error **errp) 1992 { 1993 XlnxVersalCANFDState *s = XILINX_CANFD(dev); 1994 RegisterInfoArray *reg_array; 1995 1996 reg_array = canfd_create_regarray(s); 1997 memory_region_add_subregion(&s->iomem, 0x00, ®_array->mem); 1998 sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->iomem); 1999 sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq_canfd_int); 2000 2001 if (s->canfdbus) { 2002 if (xlnx_canfd_connect_to_bus(s, s->canfdbus) < 0) { 2003 g_autofree char *path = object_get_canonical_path(OBJECT(s)); 2004 2005 error_setg(errp, "%s: xlnx_canfd_connect_to_bus failed", path); 2006 return; 2007 } 2008 2009 } 2010 2011 /* Allocate a new timer. */ 2012 s->canfd_timer = ptimer_init(xlnx_versal_canfd_ptimer_cb, s, 2013 PTIMER_POLICY_WRAP_AFTER_ONE_PERIOD | 2014 PTIMER_POLICY_TRIGGER_ONLY_ON_DECREMENT | 2015 PTIMER_POLICY_NO_IMMEDIATE_RELOAD); 2016 2017 ptimer_transaction_begin(s->canfd_timer); 2018 2019 ptimer_set_freq(s->canfd_timer, s->cfg.ext_clk_freq); 2020 ptimer_set_limit(s->canfd_timer, CANFD_TIMER_MAX, 1); 2021 ptimer_run(s->canfd_timer, 0); 2022 ptimer_transaction_commit(s->canfd_timer); 2023 } 2024 canfd_init(Object * obj)2025 static void canfd_init(Object *obj) 2026 { 2027 XlnxVersalCANFDState *s = XILINX_CANFD(obj); 2028 2029 memory_region_init(&s->iomem, obj, TYPE_XILINX_CANFD, 2030 XLNX_VERSAL_CANFD_R_MAX * 4); 2031 } 2032 2033 static const VMStateDescription vmstate_canfd = { 2034 .name = TYPE_XILINX_CANFD, 2035 .version_id = 1, 2036 .minimum_version_id = 1, 2037 .fields = (const VMStateField[]) { 2038 VMSTATE_UINT32_ARRAY(regs, XlnxVersalCANFDState, 2039 XLNX_VERSAL_CANFD_R_MAX), 2040 VMSTATE_PTIMER(canfd_timer, XlnxVersalCANFDState), 2041 VMSTATE_END_OF_LIST(), 2042 } 2043 }; 2044 2045 static Property canfd_core_properties[] = { 2046 DEFINE_PROP_UINT8("rx-fifo0", XlnxVersalCANFDState, cfg.rx0_fifo, 0x40), 2047 DEFINE_PROP_UINT8("rx-fifo1", XlnxVersalCANFDState, cfg.rx1_fifo, 0x40), 2048 DEFINE_PROP_UINT8("tx-fifo", XlnxVersalCANFDState, cfg.tx_fifo, 0x20), 2049 DEFINE_PROP_BOOL("enable-rx-fifo1", XlnxVersalCANFDState, 2050 cfg.enable_rx_fifo1, true), 2051 DEFINE_PROP_UINT32("ext_clk_freq", XlnxVersalCANFDState, cfg.ext_clk_freq, 2052 CANFD_DEFAULT_CLOCK), 2053 DEFINE_PROP_LINK("canfdbus", XlnxVersalCANFDState, canfdbus, TYPE_CAN_BUS, 2054 CanBusState *), 2055 DEFINE_PROP_END_OF_LIST(), 2056 }; 2057 canfd_class_init(ObjectClass * klass,void * data)2058 static void canfd_class_init(ObjectClass *klass, void *data) 2059 { 2060 DeviceClass *dc = DEVICE_CLASS(klass); 2061 2062 device_class_set_legacy_reset(dc, canfd_reset); 2063 dc->realize = canfd_realize; 2064 device_class_set_props(dc, canfd_core_properties); 2065 dc->vmsd = &vmstate_canfd; 2066 } 2067 2068 static const TypeInfo canfd_info = { 2069 .name = TYPE_XILINX_CANFD, 2070 .parent = TYPE_SYS_BUS_DEVICE, 2071 .instance_size = sizeof(XlnxVersalCANFDState), 2072 .class_init = canfd_class_init, 2073 .instance_init = canfd_init, 2074 }; 2075 canfd_register_types(void)2076 static void canfd_register_types(void) 2077 { 2078 type_register_static(&canfd_info); 2079 } 2080 2081 type_init(canfd_register_types) 2082