| /* |
| * QEMU model of the Xilinx Versal CANFD device. |
| * |
| * This implementation is based on the following datasheet: |
| * https://docs.xilinx.com/v/u/2.0-English/pg223-canfd |
| * |
| * Copyright (c) 2023 Advanced Micro Devices, Inc. |
| * |
| * Written-by: Vikram Garhwal <vikram.garhwal@amd.com> |
| * |
| * Based on QEMU CANFD Device emulation implemented by Jin Yang, Deniz Eren and |
| * Pavel Pisa |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "hw/sysbus.h" |
| #include "hw/irq.h" |
| #include "hw/register.h" |
| #include "qapi/error.h" |
| #include "qemu/bitops.h" |
| #include "qemu/log.h" |
| #include "qemu/cutils.h" |
| #include "qemu/event_notifier.h" |
| #include "hw/qdev-properties.h" |
| #include "qom/object_interfaces.h" |
| #include "migration/vmstate.h" |
| #include "hw/net/xlnx-versal-canfd.h" |
| #include "trace.h" |
| |
| REG32(SOFTWARE_RESET_REGISTER, 0x0) |
| FIELD(SOFTWARE_RESET_REGISTER, CEN, 1, 1) |
| FIELD(SOFTWARE_RESET_REGISTER, SRST, 0, 1) |
| REG32(MODE_SELECT_REGISTER, 0x4) |
| FIELD(MODE_SELECT_REGISTER, ITO, 8, 8) |
| FIELD(MODE_SELECT_REGISTER, ABR, 7, 1) |
| FIELD(MODE_SELECT_REGISTER, SBR, 6, 1) |
| FIELD(MODE_SELECT_REGISTER, DPEE, 5, 1) |
| FIELD(MODE_SELECT_REGISTER, DAR, 4, 1) |
| FIELD(MODE_SELECT_REGISTER, BRSD, 3, 1) |
| FIELD(MODE_SELECT_REGISTER, SNOOP, 2, 1) |
| FIELD(MODE_SELECT_REGISTER, LBACK, 1, 1) |
| FIELD(MODE_SELECT_REGISTER, SLEEP, 0, 1) |
| REG32(ARBITRATION_PHASE_BAUD_RATE_PRESCALER_REGISTER, 0x8) |
| FIELD(ARBITRATION_PHASE_BAUD_RATE_PRESCALER_REGISTER, BRP, 0, 8) |
| REG32(ARBITRATION_PHASE_BIT_TIMING_REGISTER, 0xc) |
| FIELD(ARBITRATION_PHASE_BIT_TIMING_REGISTER, SJW, 16, 7) |
| FIELD(ARBITRATION_PHASE_BIT_TIMING_REGISTER, TS2, 8, 7) |
| FIELD(ARBITRATION_PHASE_BIT_TIMING_REGISTER, TS1, 0, 8) |
| REG32(ERROR_COUNTER_REGISTER, 0x10) |
| FIELD(ERROR_COUNTER_REGISTER, REC, 8, 8) |
| FIELD(ERROR_COUNTER_REGISTER, TEC, 0, 8) |
| REG32(ERROR_STATUS_REGISTER, 0x14) |
| FIELD(ERROR_STATUS_REGISTER, F_BERR, 11, 1) |
| FIELD(ERROR_STATUS_REGISTER, F_STER, 10, 1) |
| FIELD(ERROR_STATUS_REGISTER, F_FMER, 9, 1) |
| FIELD(ERROR_STATUS_REGISTER, F_CRCER, 8, 1) |
| FIELD(ERROR_STATUS_REGISTER, ACKER, 4, 1) |
| FIELD(ERROR_STATUS_REGISTER, BERR, 3, 1) |
| FIELD(ERROR_STATUS_REGISTER, STER, 2, 1) |
| FIELD(ERROR_STATUS_REGISTER, FMER, 1, 1) |
| FIELD(ERROR_STATUS_REGISTER, CRCER, 0, 1) |
| REG32(STATUS_REGISTER, 0x18) |
| FIELD(STATUS_REGISTER, TDCV, 16, 7) |
| FIELD(STATUS_REGISTER, SNOOP, 12, 1) |
| FIELD(STATUS_REGISTER, BSFR_CONFIG, 10, 1) |
| FIELD(STATUS_REGISTER, PEE_CONFIG, 9, 1) |
| FIELD(STATUS_REGISTER, ESTAT, 7, 2) |
| FIELD(STATUS_REGISTER, ERRWRN, 6, 1) |
| FIELD(STATUS_REGISTER, BBSY, 5, 1) |
| FIELD(STATUS_REGISTER, BIDLE, 4, 1) |
| FIELD(STATUS_REGISTER, NORMAL, 3, 1) |
| FIELD(STATUS_REGISTER, SLEEP, 2, 1) |
| FIELD(STATUS_REGISTER, LBACK, 1, 1) |
| FIELD(STATUS_REGISTER, CONFIG, 0, 1) |
| REG32(INTERRUPT_STATUS_REGISTER, 0x1c) |
| FIELD(INTERRUPT_STATUS_REGISTER, TXEWMFLL, 31, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, TXEOFLW, 30, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, RXBOFLW_BI, 24, 6) |
| FIELD(INTERRUPT_STATUS_REGISTER, RXLRM_BI, 18, 6) |
| FIELD(INTERRUPT_STATUS_REGISTER, RXMNF, 17, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, RXFWMFLL_1, 16, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, RXFOFLW_1, 15, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, TXCRS, 14, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, TXRRS, 13, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, RXFWMFLL, 12, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, WKUP, 11, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, SLP, 10, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, BSOFF, 9, 1) |
| /* |
| * In the original HW description below bit is named as ERROR but an ERROR |
| * field name collides with a macro in Windows build. To avoid Windows build |
| * failures, the bit is renamed to ERROR_BIT. |
| */ |
| FIELD(INTERRUPT_STATUS_REGISTER, ERROR_BIT, 8, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, RXFOFLW, 6, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, TSCNT_OFLW, 5, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, RXOK, 4, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, BSFRD, 3, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, PEE, 2, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, TXOK, 1, 1) |
| FIELD(INTERRUPT_STATUS_REGISTER, ARBLST, 0, 1) |
| REG32(INTERRUPT_ENABLE_REGISTER, 0x20) |
| FIELD(INTERRUPT_ENABLE_REGISTER, ETXEWMFLL, 31, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, ETXEOFLW, 30, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, ERXMNF, 17, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, ERXFWMFLL_1, 16, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, ERXFOFLW_1, 15, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, ETXCRS, 14, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, ETXRRS, 13, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, ERXFWMFLL, 12, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, EWKUP, 11, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, ESLP, 10, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, EBSOFF, 9, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, EERROR, 8, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, ERFXOFLW, 6, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, ETSCNT_OFLW, 5, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, ERXOK, 4, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, EBSFRD, 3, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, EPEE, 2, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, ETXOK, 1, 1) |
| FIELD(INTERRUPT_ENABLE_REGISTER, EARBLOST, 0, 1) |
| REG32(INTERRUPT_CLEAR_REGISTER, 0x24) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CTXEWMFLL, 31, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CTXEOFLW, 30, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CRXMNF, 17, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CRXFWMFLL_1, 16, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CRXFOFLW_1, 15, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CTXCRS, 14, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CTXRRS, 13, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CRXFWMFLL, 12, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CWKUP, 11, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CSLP, 10, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CBSOFF, 9, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CERROR, 8, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CRFXOFLW, 6, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CTSCNT_OFLW, 5, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CRXOK, 4, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CBSFRD, 3, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CPEE, 2, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CTXOK, 1, 1) |
| FIELD(INTERRUPT_CLEAR_REGISTER, CARBLOST, 0, 1) |
| REG32(TIMESTAMP_REGISTER, 0x28) |
| FIELD(TIMESTAMP_REGISTER, TIMESTAMP_CNT, 16, 16) |
| FIELD(TIMESTAMP_REGISTER, CTS, 0, 1) |
| REG32(DATA_PHASE_BAUD_RATE_PRESCALER_REGISTER, 0x88) |
| FIELD(DATA_PHASE_BAUD_RATE_PRESCALER_REGISTER, TDC, 16, 1) |
| FIELD(DATA_PHASE_BAUD_RATE_PRESCALER_REGISTER, TDCOFF, 8, 6) |
| FIELD(DATA_PHASE_BAUD_RATE_PRESCALER_REGISTER, DP_BRP, 0, 8) |
| REG32(DATA_PHASE_BIT_TIMING_REGISTER, 0x8c) |
| FIELD(DATA_PHASE_BIT_TIMING_REGISTER, DP_SJW, 16, 4) |
| FIELD(DATA_PHASE_BIT_TIMING_REGISTER, DP_TS2, 8, 4) |
| FIELD(DATA_PHASE_BIT_TIMING_REGISTER, DP_TS1, 0, 5) |
| REG32(TX_BUFFER_READY_REQUEST_REGISTER, 0x90) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR31, 31, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR30, 30, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR29, 29, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR28, 28, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR27, 27, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR26, 26, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR25, 25, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR24, 24, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR23, 23, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR22, 22, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR21, 21, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR20, 20, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR19, 19, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR18, 18, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR17, 17, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR16, 16, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR15, 15, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR14, 14, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR13, 13, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR12, 12, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR11, 11, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR10, 10, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR9, 9, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR8, 8, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR7, 7, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR6, 6, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR5, 5, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR4, 4, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR3, 3, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR2, 2, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR1, 1, 1) |
| FIELD(TX_BUFFER_READY_REQUEST_REGISTER, RR0, 0, 1) |
| REG32(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, 0x94) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS31, 31, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS30, 30, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS29, 29, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS28, 28, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS27, 27, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS26, 26, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS25, 25, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS24, 24, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS23, 23, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS22, 22, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS21, 21, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS20, 20, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS19, 19, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS18, 18, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS17, 17, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS16, 16, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS15, 15, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS14, 14, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS13, 13, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS12, 12, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS11, 11, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS10, 10, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS9, 9, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS8, 8, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS7, 7, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS6, 6, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS5, 5, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS4, 4, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS3, 3, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS2, 2, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS1, 1, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, ERRS0, 0, 1) |
| REG32(TX_BUFFER_CANCEL_REQUEST_REGISTER, 0x98) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR31, 31, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR30, 30, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR29, 29, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR28, 28, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR27, 27, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR26, 26, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR25, 25, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR24, 24, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR23, 23, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR22, 22, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR21, 21, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR20, 20, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR19, 19, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR18, 18, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR17, 17, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR16, 16, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR15, 15, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR14, 14, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR13, 13, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR12, 12, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR11, 11, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR10, 10, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR9, 9, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR8, 8, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR7, 7, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR6, 6, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR5, 5, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR4, 4, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR3, 3, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR2, 2, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR1, 1, 1) |
| FIELD(TX_BUFFER_CANCEL_REQUEST_REGISTER, CR0, 0, 1) |
| REG32(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, 0x9c) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS31, 31, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS30, 30, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS29, 29, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS28, 28, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS27, 27, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS26, 26, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS25, 25, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS24, 24, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS23, 23, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS22, 22, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS21, 21, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS20, 20, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS19, 19, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS18, 18, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS17, 17, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS16, 16, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS15, 15, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS14, 14, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS13, 13, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS12, 12, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS11, 11, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS10, 10, |
| 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS9, 9, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS8, 8, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS7, 7, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS6, 6, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS5, 5, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS4, 4, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS3, 3, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS2, 2, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS1, 1, 1) |
| FIELD(INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, ECRS0, 0, 1) |
| REG32(TX_EVENT_FIFO_STATUS_REGISTER, 0xa0) |
| FIELD(TX_EVENT_FIFO_STATUS_REGISTER, TXE_FL, 8, 6) |
| FIELD(TX_EVENT_FIFO_STATUS_REGISTER, TXE_IRI, 7, 1) |
| FIELD(TX_EVENT_FIFO_STATUS_REGISTER, TXE_RI, 0, 5) |
| REG32(TX_EVENT_FIFO_WATERMARK_REGISTER, 0xa4) |
| FIELD(TX_EVENT_FIFO_WATERMARK_REGISTER, TXE_FWM, 0, 5) |
| REG32(ACCEPTANCE_FILTER_CONTROL_REGISTER, 0xe0) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF31, 31, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF30, 30, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF29, 29, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF28, 28, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF27, 27, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF26, 26, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF25, 25, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF24, 24, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF23, 23, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF22, 22, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF21, 21, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF20, 20, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF19, 19, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF18, 18, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF17, 17, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF16, 16, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF15, 15, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF14, 14, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF13, 13, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF12, 12, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF11, 11, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF10, 10, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF9, 9, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF8, 8, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF7, 7, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF6, 6, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF5, 5, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF4, 4, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF3, 3, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF2, 2, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF1, 1, 1) |
| FIELD(ACCEPTANCE_FILTER_CONTROL_REGISTER, UAF0, 0, 1) |
| REG32(RX_FIFO_STATUS_REGISTER, 0xe8) |
| FIELD(RX_FIFO_STATUS_REGISTER, FL_1, 24, 7) |
| FIELD(RX_FIFO_STATUS_REGISTER, IRI_1, 23, 1) |
| FIELD(RX_FIFO_STATUS_REGISTER, RI_1, 16, 6) |
| FIELD(RX_FIFO_STATUS_REGISTER, FL, 8, 7) |
| FIELD(RX_FIFO_STATUS_REGISTER, IRI, 7, 1) |
| FIELD(RX_FIFO_STATUS_REGISTER, RI, 0, 6) |
| REG32(RX_FIFO_WATERMARK_REGISTER, 0xec) |
| FIELD(RX_FIFO_WATERMARK_REGISTER, RXFP, 16, 5) |
| FIELD(RX_FIFO_WATERMARK_REGISTER, RXFWM_1, 8, 6) |
| FIELD(RX_FIFO_WATERMARK_REGISTER, RXFWM, 0, 6) |
| REG32(TB_ID_REGISTER, 0x100) |
| FIELD(TB_ID_REGISTER, ID, 21, 11) |
| FIELD(TB_ID_REGISTER, SRR_RTR_RRS, 20, 1) |
| FIELD(TB_ID_REGISTER, IDE, 19, 1) |
| FIELD(TB_ID_REGISTER, ID_EXT, 1, 18) |
| FIELD(TB_ID_REGISTER, RTR_RRS, 0, 1) |
| REG32(TB0_DLC_REGISTER, 0x104) |
| FIELD(TB0_DLC_REGISTER, DLC, 28, 4) |
| FIELD(TB0_DLC_REGISTER, FDF, 27, 1) |
| FIELD(TB0_DLC_REGISTER, BRS, 26, 1) |
| FIELD(TB0_DLC_REGISTER, RSVD2, 25, 1) |
| FIELD(TB0_DLC_REGISTER, EFC, 24, 1) |
| FIELD(TB0_DLC_REGISTER, MM, 16, 8) |
| FIELD(TB0_DLC_REGISTER, RSVD1, 0, 16) |
| REG32(TB_DW0_REGISTER, 0x108) |
| FIELD(TB_DW0_REGISTER, DATA_BYTES0, 24, 8) |
| FIELD(TB_DW0_REGISTER, DATA_BYTES1, 16, 8) |
| FIELD(TB_DW0_REGISTER, DATA_BYTES2, 8, 8) |
| FIELD(TB_DW0_REGISTER, DATA_BYTES3, 0, 8) |
| REG32(TB_DW1_REGISTER, 0x10c) |
| FIELD(TB_DW1_REGISTER, DATA_BYTES4, 24, 8) |
| FIELD(TB_DW1_REGISTER, DATA_BYTES5, 16, 8) |
| FIELD(TB_DW1_REGISTER, DATA_BYTES6, 8, 8) |
| FIELD(TB_DW1_REGISTER, DATA_BYTES7, 0, 8) |
| REG32(TB_DW2_REGISTER, 0x110) |
| FIELD(TB_DW2_REGISTER, DATA_BYTES8, 24, 8) |
| FIELD(TB_DW2_REGISTER, DATA_BYTES9, 16, 8) |
| FIELD(TB_DW2_REGISTER, DATA_BYTES10, 8, 8) |
| FIELD(TB_DW2_REGISTER, DATA_BYTES11, 0, 8) |
| REG32(TB_DW3_REGISTER, 0x114) |
| FIELD(TB_DW3_REGISTER, DATA_BYTES12, 24, 8) |
| FIELD(TB_DW3_REGISTER, DATA_BYTES13, 16, 8) |
| FIELD(TB_DW3_REGISTER, DATA_BYTES14, 8, 8) |
| FIELD(TB_DW3_REGISTER, DATA_BYTES15, 0, 8) |
| REG32(TB_DW4_REGISTER, 0x118) |
| FIELD(TB_DW4_REGISTER, DATA_BYTES16, 24, 8) |
| FIELD(TB_DW4_REGISTER, DATA_BYTES17, 16, 8) |
| FIELD(TB_DW4_REGISTER, DATA_BYTES18, 8, 8) |
| FIELD(TB_DW4_REGISTER, DATA_BYTES19, 0, 8) |
| REG32(TB_DW5_REGISTER, 0x11c) |
| FIELD(TB_DW5_REGISTER, DATA_BYTES20, 24, 8) |
| FIELD(TB_DW5_REGISTER, DATA_BYTES21, 16, 8) |
| FIELD(TB_DW5_REGISTER, DATA_BYTES22, 8, 8) |
| FIELD(TB_DW5_REGISTER, DATA_BYTES23, 0, 8) |
| REG32(TB_DW6_REGISTER, 0x120) |
| FIELD(TB_DW6_REGISTER, DATA_BYTES24, 24, 8) |
| FIELD(TB_DW6_REGISTER, DATA_BYTES25, 16, 8) |
| FIELD(TB_DW6_REGISTER, DATA_BYTES26, 8, 8) |
| FIELD(TB_DW6_REGISTER, DATA_BYTES27, 0, 8) |
| REG32(TB_DW7_REGISTER, 0x124) |
| FIELD(TB_DW7_REGISTER, DATA_BYTES28, 24, 8) |
| FIELD(TB_DW7_REGISTER, DATA_BYTES29, 16, 8) |
| FIELD(TB_DW7_REGISTER, DATA_BYTES30, 8, 8) |
| FIELD(TB_DW7_REGISTER, DATA_BYTES31, 0, 8) |
| REG32(TB_DW8_REGISTER, 0x128) |
| FIELD(TB_DW8_REGISTER, DATA_BYTES32, 24, 8) |
| FIELD(TB_DW8_REGISTER, DATA_BYTES33, 16, 8) |
| FIELD(TB_DW8_REGISTER, DATA_BYTES34, 8, 8) |
| FIELD(TB_DW8_REGISTER, DATA_BYTES35, 0, 8) |
| REG32(TB_DW9_REGISTER, 0x12c) |
| FIELD(TB_DW9_REGISTER, DATA_BYTES36, 24, 8) |
| FIELD(TB_DW9_REGISTER, DATA_BYTES37, 16, 8) |
| FIELD(TB_DW9_REGISTER, DATA_BYTES38, 8, 8) |
| FIELD(TB_DW9_REGISTER, DATA_BYTES39, 0, 8) |
| REG32(TB_DW10_REGISTER, 0x130) |
| FIELD(TB_DW10_REGISTER, DATA_BYTES40, 24, 8) |
| FIELD(TB_DW10_REGISTER, DATA_BYTES41, 16, 8) |
| FIELD(TB_DW10_REGISTER, DATA_BYTES42, 8, 8) |
| FIELD(TB_DW10_REGISTER, DATA_BYTES43, 0, 8) |
| REG32(TB_DW11_REGISTER, 0x134) |
| FIELD(TB_DW11_REGISTER, DATA_BYTES44, 24, 8) |
| FIELD(TB_DW11_REGISTER, DATA_BYTES45, 16, 8) |
| FIELD(TB_DW11_REGISTER, DATA_BYTES46, 8, 8) |
| FIELD(TB_DW11_REGISTER, DATA_BYTES47, 0, 8) |
| REG32(TB_DW12_REGISTER, 0x138) |
| FIELD(TB_DW12_REGISTER, DATA_BYTES48, 24, 8) |
| FIELD(TB_DW12_REGISTER, DATA_BYTES49, 16, 8) |
| FIELD(TB_DW12_REGISTER, DATA_BYTES50, 8, 8) |
| FIELD(TB_DW12_REGISTER, DATA_BYTES51, 0, 8) |
| REG32(TB_DW13_REGISTER, 0x13c) |
| FIELD(TB_DW13_REGISTER, DATA_BYTES52, 24, 8) |
| FIELD(TB_DW13_REGISTER, DATA_BYTES53, 16, 8) |
| FIELD(TB_DW13_REGISTER, DATA_BYTES54, 8, 8) |
| FIELD(TB_DW13_REGISTER, DATA_BYTES55, 0, 8) |
| REG32(TB_DW14_REGISTER, 0x140) |
| FIELD(TB_DW14_REGISTER, DATA_BYTES56, 24, 8) |
| FIELD(TB_DW14_REGISTER, DATA_BYTES57, 16, 8) |
| FIELD(TB_DW14_REGISTER, DATA_BYTES58, 8, 8) |
| FIELD(TB_DW14_REGISTER, DATA_BYTES59, 0, 8) |
| REG32(TB_DW15_REGISTER, 0x144) |
| FIELD(TB_DW15_REGISTER, DATA_BYTES60, 24, 8) |
| FIELD(TB_DW15_REGISTER, DATA_BYTES61, 16, 8) |
| FIELD(TB_DW15_REGISTER, DATA_BYTES62, 8, 8) |
| FIELD(TB_DW15_REGISTER, DATA_BYTES63, 0, 8) |
| REG32(AFMR_REGISTER, 0xa00) |
| FIELD(AFMR_REGISTER, AMID, 21, 11) |
| FIELD(AFMR_REGISTER, AMSRR, 20, 1) |
| FIELD(AFMR_REGISTER, AMIDE, 19, 1) |
| FIELD(AFMR_REGISTER, AMID_EXT, 1, 18) |
| FIELD(AFMR_REGISTER, AMRTR, 0, 1) |
| REG32(AFIR_REGISTER, 0xa04) |
| FIELD(AFIR_REGISTER, AIID, 21, 11) |
| FIELD(AFIR_REGISTER, AISRR, 20, 1) |
| FIELD(AFIR_REGISTER, AIIDE, 19, 1) |
| FIELD(AFIR_REGISTER, AIID_EXT, 1, 18) |
| FIELD(AFIR_REGISTER, AIRTR, 0, 1) |
| REG32(TXE_FIFO_TB_ID_REGISTER, 0x2000) |
| FIELD(TXE_FIFO_TB_ID_REGISTER, ID, 21, 11) |
| FIELD(TXE_FIFO_TB_ID_REGISTER, SRR_RTR_RRS, 20, 1) |
| FIELD(TXE_FIFO_TB_ID_REGISTER, IDE, 19, 1) |
| FIELD(TXE_FIFO_TB_ID_REGISTER, ID_EXT, 1, 18) |
| FIELD(TXE_FIFO_TB_ID_REGISTER, RTR_RRS, 0, 1) |
| REG32(TXE_FIFO_TB_DLC_REGISTER, 0x2004) |
| FIELD(TXE_FIFO_TB_DLC_REGISTER, DLC, 28, 4) |
| FIELD(TXE_FIFO_TB_DLC_REGISTER, FDF, 27, 1) |
| FIELD(TXE_FIFO_TB_DLC_REGISTER, BRS, 26, 1) |
| FIELD(TXE_FIFO_TB_DLC_REGISTER, ET, 24, 2) |
| FIELD(TXE_FIFO_TB_DLC_REGISTER, MM, 16, 8) |
| FIELD(TXE_FIFO_TB_DLC_REGISTER, TIMESTAMP, 0, 16) |
| REG32(RB_ID_REGISTER, 0x2100) |
| FIELD(RB_ID_REGISTER, ID, 21, 11) |
| FIELD(RB_ID_REGISTER, SRR_RTR_RRS, 20, 1) |
| FIELD(RB_ID_REGISTER, IDE, 19, 1) |
| FIELD(RB_ID_REGISTER, ID_EXT, 1, 18) |
| FIELD(RB_ID_REGISTER, RTR_RRS, 0, 1) |
| REG32(RB_DLC_REGISTER, 0x2104) |
| FIELD(RB_DLC_REGISTER, DLC, 28, 4) |
| FIELD(RB_DLC_REGISTER, FDF, 27, 1) |
| FIELD(RB_DLC_REGISTER, BRS, 26, 1) |
| FIELD(RB_DLC_REGISTER, ESI, 25, 1) |
| FIELD(RB_DLC_REGISTER, MATCHED_FILTER_INDEX, 16, 5) |
| FIELD(RB_DLC_REGISTER, TIMESTAMP, 0, 16) |
| REG32(RB_DW0_REGISTER, 0x2108) |
| FIELD(RB_DW0_REGISTER, DATA_BYTES0, 24, 8) |
| FIELD(RB_DW0_REGISTER, DATA_BYTES1, 16, 8) |
| FIELD(RB_DW0_REGISTER, DATA_BYTES2, 8, 8) |
| FIELD(RB_DW0_REGISTER, DATA_BYTES3, 0, 8) |
| REG32(RB_DW1_REGISTER, 0x210c) |
| FIELD(RB_DW1_REGISTER, DATA_BYTES4, 24, 8) |
| FIELD(RB_DW1_REGISTER, DATA_BYTES5, 16, 8) |
| FIELD(RB_DW1_REGISTER, DATA_BYTES6, 8, 8) |
| FIELD(RB_DW1_REGISTER, DATA_BYTES7, 0, 8) |
| REG32(RB_DW2_REGISTER, 0x2110) |
| FIELD(RB_DW2_REGISTER, DATA_BYTES8, 24, 8) |
| FIELD(RB_DW2_REGISTER, DATA_BYTES9, 16, 8) |
| FIELD(RB_DW2_REGISTER, DATA_BYTES10, 8, 8) |
| FIELD(RB_DW2_REGISTER, DATA_BYTES11, 0, 8) |
| REG32(RB_DW3_REGISTER, 0x2114) |
| FIELD(RB_DW3_REGISTER, DATA_BYTES12, 24, 8) |
| FIELD(RB_DW3_REGISTER, DATA_BYTES13, 16, 8) |
| FIELD(RB_DW3_REGISTER, DATA_BYTES14, 8, 8) |
| FIELD(RB_DW3_REGISTER, DATA_BYTES15, 0, 8) |
| REG32(RB_DW4_REGISTER, 0x2118) |
| FIELD(RB_DW4_REGISTER, DATA_BYTES16, 24, 8) |
| FIELD(RB_DW4_REGISTER, DATA_BYTES17, 16, 8) |
| FIELD(RB_DW4_REGISTER, DATA_BYTES18, 8, 8) |
| FIELD(RB_DW4_REGISTER, DATA_BYTES19, 0, 8) |
| REG32(RB_DW5_REGISTER, 0x211c) |
| FIELD(RB_DW5_REGISTER, DATA_BYTES20, 24, 8) |
| FIELD(RB_DW5_REGISTER, DATA_BYTES21, 16, 8) |
| FIELD(RB_DW5_REGISTER, DATA_BYTES22, 8, 8) |
| FIELD(RB_DW5_REGISTER, DATA_BYTES23, 0, 8) |
| REG32(RB_DW6_REGISTER, 0x2120) |
| FIELD(RB_DW6_REGISTER, DATA_BYTES24, 24, 8) |
| FIELD(RB_DW6_REGISTER, DATA_BYTES25, 16, 8) |
| FIELD(RB_DW6_REGISTER, DATA_BYTES26, 8, 8) |
| FIELD(RB_DW6_REGISTER, DATA_BYTES27, 0, 8) |
| REG32(RB_DW7_REGISTER, 0x2124) |
| FIELD(RB_DW7_REGISTER, DATA_BYTES28, 24, 8) |
| FIELD(RB_DW7_REGISTER, DATA_BYTES29, 16, 8) |
| FIELD(RB_DW7_REGISTER, DATA_BYTES30, 8, 8) |
| FIELD(RB_DW7_REGISTER, DATA_BYTES31, 0, 8) |
| REG32(RB_DW8_REGISTER, 0x2128) |
| FIELD(RB_DW8_REGISTER, DATA_BYTES32, 24, 8) |
| FIELD(RB_DW8_REGISTER, DATA_BYTES33, 16, 8) |
| FIELD(RB_DW8_REGISTER, DATA_BYTES34, 8, 8) |
| FIELD(RB_DW8_REGISTER, DATA_BYTES35, 0, 8) |
| REG32(RB_DW9_REGISTER, 0x212c) |
| FIELD(RB_DW9_REGISTER, DATA_BYTES36, 24, 8) |
| FIELD(RB_DW9_REGISTER, DATA_BYTES37, 16, 8) |
| FIELD(RB_DW9_REGISTER, DATA_BYTES38, 8, 8) |
| FIELD(RB_DW9_REGISTER, DATA_BYTES39, 0, 8) |
| REG32(RB_DW10_REGISTER, 0x2130) |
| FIELD(RB_DW10_REGISTER, DATA_BYTES40, 24, 8) |
| FIELD(RB_DW10_REGISTER, DATA_BYTES41, 16, 8) |
| FIELD(RB_DW10_REGISTER, DATA_BYTES42, 8, 8) |
| FIELD(RB_DW10_REGISTER, DATA_BYTES43, 0, 8) |
| REG32(RB_DW11_REGISTER, 0x2134) |
| FIELD(RB_DW11_REGISTER, DATA_BYTES44, 24, 8) |
| FIELD(RB_DW11_REGISTER, DATA_BYTES45, 16, 8) |
| FIELD(RB_DW11_REGISTER, DATA_BYTES46, 8, 8) |
| FIELD(RB_DW11_REGISTER, DATA_BYTES47, 0, 8) |
| REG32(RB_DW12_REGISTER, 0x2138) |
| FIELD(RB_DW12_REGISTER, DATA_BYTES48, 24, 8) |
| FIELD(RB_DW12_REGISTER, DATA_BYTES49, 16, 8) |
| FIELD(RB_DW12_REGISTER, DATA_BYTES50, 8, 8) |
| FIELD(RB_DW12_REGISTER, DATA_BYTES51, 0, 8) |
| REG32(RB_DW13_REGISTER, 0x213c) |
| FIELD(RB_DW13_REGISTER, DATA_BYTES52, 24, 8) |
| FIELD(RB_DW13_REGISTER, DATA_BYTES53, 16, 8) |
| FIELD(RB_DW13_REGISTER, DATA_BYTES54, 8, 8) |
| FIELD(RB_DW13_REGISTER, DATA_BYTES55, 0, 8) |
| REG32(RB_DW14_REGISTER, 0x2140) |
| FIELD(RB_DW14_REGISTER, DATA_BYTES56, 24, 8) |
| FIELD(RB_DW14_REGISTER, DATA_BYTES57, 16, 8) |
| FIELD(RB_DW14_REGISTER, DATA_BYTES58, 8, 8) |
| FIELD(RB_DW14_REGISTER, DATA_BYTES59, 0, 8) |
| REG32(RB_DW15_REGISTER, 0x2144) |
| FIELD(RB_DW15_REGISTER, DATA_BYTES60, 24, 8) |
| FIELD(RB_DW15_REGISTER, DATA_BYTES61, 16, 8) |
| FIELD(RB_DW15_REGISTER, DATA_BYTES62, 8, 8) |
| FIELD(RB_DW15_REGISTER, DATA_BYTES63, 0, 8) |
| REG32(RB_ID_REGISTER_1, 0x4100) |
| FIELD(RB_ID_REGISTER_1, ID, 21, 11) |
| FIELD(RB_ID_REGISTER_1, SRR_RTR_RRS, 20, 1) |
| FIELD(RB_ID_REGISTER_1, IDE, 19, 1) |
| FIELD(RB_ID_REGISTER_1, ID_EXT, 1, 18) |
| FIELD(RB_ID_REGISTER_1, RTR_RRS, 0, 1) |
| REG32(RB_DLC_REGISTER_1, 0x4104) |
| FIELD(RB_DLC_REGISTER_1, DLC, 28, 4) |
| FIELD(RB_DLC_REGISTER_1, FDF, 27, 1) |
| FIELD(RB_DLC_REGISTER_1, BRS, 26, 1) |
| FIELD(RB_DLC_REGISTER_1, ESI, 25, 1) |
| FIELD(RB_DLC_REGISTER_1, MATCHED_FILTER_INDEX, 16, 5) |
| FIELD(RB_DLC_REGISTER_1, TIMESTAMP, 0, 16) |
| REG32(RB0_DW0_REGISTER_1, 0x4108) |
| FIELD(RB0_DW0_REGISTER_1, DATA_BYTES0, 24, 8) |
| FIELD(RB0_DW0_REGISTER_1, DATA_BYTES1, 16, 8) |
| FIELD(RB0_DW0_REGISTER_1, DATA_BYTES2, 8, 8) |
| FIELD(RB0_DW0_REGISTER_1, DATA_BYTES3, 0, 8) |
| REG32(RB_DW1_REGISTER_1, 0x410c) |
| FIELD(RB_DW1_REGISTER_1, DATA_BYTES4, 24, 8) |
| FIELD(RB_DW1_REGISTER_1, DATA_BYTES5, 16, 8) |
| FIELD(RB_DW1_REGISTER_1, DATA_BYTES6, 8, 8) |
| FIELD(RB_DW1_REGISTER_1, DATA_BYTES7, 0, 8) |
| REG32(RB_DW2_REGISTER_1, 0x4110) |
| FIELD(RB_DW2_REGISTER_1, DATA_BYTES8, 24, 8) |
| FIELD(RB_DW2_REGISTER_1, DATA_BYTES9, 16, 8) |
| FIELD(RB_DW2_REGISTER_1, DATA_BYTES10, 8, 8) |
| FIELD(RB_DW2_REGISTER_1, DATA_BYTES11, 0, 8) |
| REG32(RB_DW3_REGISTER_1, 0x4114) |
| FIELD(RB_DW3_REGISTER_1, DATA_BYTES12, 24, 8) |
| FIELD(RB_DW3_REGISTER_1, DATA_BYTES13, 16, 8) |
| FIELD(RB_DW3_REGISTER_1, DATA_BYTES14, 8, 8) |
| FIELD(RB_DW3_REGISTER_1, DATA_BYTES15, 0, 8) |
| REG32(RB_DW4_REGISTER_1, 0x4118) |
| FIELD(RB_DW4_REGISTER_1, DATA_BYTES16, 24, 8) |
| FIELD(RB_DW4_REGISTER_1, DATA_BYTES17, 16, 8) |
| FIELD(RB_DW4_REGISTER_1, DATA_BYTES18, 8, 8) |
| FIELD(RB_DW4_REGISTER_1, DATA_BYTES19, 0, 8) |
| REG32(RB_DW5_REGISTER_1, 0x411c) |
| FIELD(RB_DW5_REGISTER_1, DATA_BYTES20, 24, 8) |
| FIELD(RB_DW5_REGISTER_1, DATA_BYTES21, 16, 8) |
| FIELD(RB_DW5_REGISTER_1, DATA_BYTES22, 8, 8) |
| FIELD(RB_DW5_REGISTER_1, DATA_BYTES23, 0, 8) |
| REG32(RB_DW6_REGISTER_1, 0x4120) |
| FIELD(RB_DW6_REGISTER_1, DATA_BYTES24, 24, 8) |
| FIELD(RB_DW6_REGISTER_1, DATA_BYTES25, 16, 8) |
| FIELD(RB_DW6_REGISTER_1, DATA_BYTES26, 8, 8) |
| FIELD(RB_DW6_REGISTER_1, DATA_BYTES27, 0, 8) |
| REG32(RB_DW7_REGISTER_1, 0x4124) |
| FIELD(RB_DW7_REGISTER_1, DATA_BYTES28, 24, 8) |
| FIELD(RB_DW7_REGISTER_1, DATA_BYTES29, 16, 8) |
| FIELD(RB_DW7_REGISTER_1, DATA_BYTES30, 8, 8) |
| FIELD(RB_DW7_REGISTER_1, DATA_BYTES31, 0, 8) |
| REG32(RB_DW8_REGISTER_1, 0x4128) |
| FIELD(RB_DW8_REGISTER_1, DATA_BYTES32, 24, 8) |
| FIELD(RB_DW8_REGISTER_1, DATA_BYTES33, 16, 8) |
| FIELD(RB_DW8_REGISTER_1, DATA_BYTES34, 8, 8) |
| FIELD(RB_DW8_REGISTER_1, DATA_BYTES35, 0, 8) |
| REG32(RB_DW9_REGISTER_1, 0x412c) |
| FIELD(RB_DW9_REGISTER_1, DATA_BYTES36, 24, 8) |
| FIELD(RB_DW9_REGISTER_1, DATA_BYTES37, 16, 8) |
| FIELD(RB_DW9_REGISTER_1, DATA_BYTES38, 8, 8) |
| FIELD(RB_DW9_REGISTER_1, DATA_BYTES39, 0, 8) |
| REG32(RB_DW10_REGISTER_1, 0x4130) |
| FIELD(RB_DW10_REGISTER_1, DATA_BYTES40, 24, 8) |
| FIELD(RB_DW10_REGISTER_1, DATA_BYTES41, 16, 8) |
| FIELD(RB_DW10_REGISTER_1, DATA_BYTES42, 8, 8) |
| FIELD(RB_DW10_REGISTER_1, DATA_BYTES43, 0, 8) |
| REG32(RB_DW11_REGISTER_1, 0x4134) |
| FIELD(RB_DW11_REGISTER_1, DATA_BYTES44, 24, 8) |
| FIELD(RB_DW11_REGISTER_1, DATA_BYTES45, 16, 8) |
| FIELD(RB_DW11_REGISTER_1, DATA_BYTES46, 8, 8) |
| FIELD(RB_DW11_REGISTER_1, DATA_BYTES47, 0, 8) |
| REG32(RB_DW12_REGISTER_1, 0x4138) |
| FIELD(RB_DW12_REGISTER_1, DATA_BYTES48, 24, 8) |
| FIELD(RB_DW12_REGISTER_1, DATA_BYTES49, 16, 8) |
| FIELD(RB_DW12_REGISTER_1, DATA_BYTES50, 8, 8) |
| FIELD(RB_DW12_REGISTER_1, DATA_BYTES51, 0, 8) |
| REG32(RB_DW13_REGISTER_1, 0x413c) |
| FIELD(RB_DW13_REGISTER_1, DATA_BYTES52, 24, 8) |
| FIELD(RB_DW13_REGISTER_1, DATA_BYTES53, 16, 8) |
| FIELD(RB_DW13_REGISTER_1, DATA_BYTES54, 8, 8) |
| FIELD(RB_DW13_REGISTER_1, DATA_BYTES55, 0, 8) |
| REG32(RB_DW14_REGISTER_1, 0x4140) |
| FIELD(RB_DW14_REGISTER_1, DATA_BYTES56, 24, 8) |
| FIELD(RB_DW14_REGISTER_1, DATA_BYTES57, 16, 8) |
| FIELD(RB_DW14_REGISTER_1, DATA_BYTES58, 8, 8) |
| FIELD(RB_DW14_REGISTER_1, DATA_BYTES59, 0, 8) |
| REG32(RB_DW15_REGISTER_1, 0x4144) |
| FIELD(RB_DW15_REGISTER_1, DATA_BYTES60, 24, 8) |
| FIELD(RB_DW15_REGISTER_1, DATA_BYTES61, 16, 8) |
| FIELD(RB_DW15_REGISTER_1, DATA_BYTES62, 8, 8) |
| FIELD(RB_DW15_REGISTER_1, DATA_BYTES63, 0, 8) |
| |
| static uint8_t canfd_dlc_array[8] = {8, 12, 16, 20, 24, 32, 48, 64}; |
| |
| static void canfd_update_irq(XlnxVersalCANFDState *s) |
| { |
| unsigned int irq = s->regs[R_INTERRUPT_STATUS_REGISTER] & |
| s->regs[R_INTERRUPT_ENABLE_REGISTER]; |
| g_autofree char *path = object_get_canonical_path(OBJECT(s)); |
| |
| /* RX watermark interrupts. */ |
| if (ARRAY_FIELD_EX32(s->regs, RX_FIFO_STATUS_REGISTER, FL) > |
| ARRAY_FIELD_EX32(s->regs, RX_FIFO_WATERMARK_REGISTER, RXFWM)) { |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXFWMFLL, 1); |
| } |
| |
| if (ARRAY_FIELD_EX32(s->regs, RX_FIFO_STATUS_REGISTER, FL_1) > |
| ARRAY_FIELD_EX32(s->regs, RX_FIFO_WATERMARK_REGISTER, RXFWM_1)) { |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXFWMFLL_1, 1); |
| } |
| |
| /* TX watermark interrupt. */ |
| if (ARRAY_FIELD_EX32(s->regs, TX_EVENT_FIFO_STATUS_REGISTER, TXE_FL) > |
| ARRAY_FIELD_EX32(s->regs, TX_EVENT_FIFO_WATERMARK_REGISTER, TXE_FWM)) { |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, TXEWMFLL, 1); |
| } |
| |
| trace_xlnx_canfd_update_irq(path, s->regs[R_INTERRUPT_STATUS_REGISTER], |
| s->regs[R_INTERRUPT_ENABLE_REGISTER], irq); |
| |
| qemu_set_irq(s->irq_canfd_int, irq); |
| } |
| |
| static void canfd_ier_post_write(RegisterInfo *reg, uint64_t val64) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); |
| |
| canfd_update_irq(s); |
| } |
| |
| static uint64_t canfd_icr_pre_write(RegisterInfo *reg, uint64_t val64) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); |
| uint32_t val = val64; |
| |
| s->regs[R_INTERRUPT_STATUS_REGISTER] &= ~val; |
| |
| /* |
| * RXBOFLW_BI field is automatically cleared to default if RXBOFLW bit is |
| * cleared in ISR. |
| */ |
| if (ARRAY_FIELD_EX32(s->regs, INTERRUPT_STATUS_REGISTER, RXFWMFLL_1)) { |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXBOFLW_BI, 0); |
| } |
| |
| canfd_update_irq(s); |
| |
| return 0; |
| } |
| |
| static void canfd_config_reset(XlnxVersalCANFDState *s) |
| { |
| |
| unsigned int i; |
| |
| /* Reset all the configuration registers. */ |
| for (i = 0; i < R_RX_FIFO_WATERMARK_REGISTER; ++i) { |
| register_reset(&s->reg_info[i]); |
| } |
| |
| canfd_update_irq(s); |
| } |
| |
| static void canfd_config_mode(XlnxVersalCANFDState *s) |
| { |
| register_reset(&s->reg_info[R_ERROR_COUNTER_REGISTER]); |
| register_reset(&s->reg_info[R_ERROR_STATUS_REGISTER]); |
| register_reset(&s->reg_info[R_STATUS_REGISTER]); |
| |
| /* Put XlnxVersalCANFDState in configuration mode. */ |
| ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, CONFIG, 1); |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, WKUP, 0); |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, SLP, 0); |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, BSOFF, 0); |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, ERROR_BIT, 0); |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXFOFLW, 0); |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXFOFLW_1, 0); |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXOK, 0); |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, TXOK, 0); |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, ARBLST, 0); |
| |
| /* Clear the time stamp. */ |
| ptimer_transaction_begin(s->canfd_timer); |
| ptimer_set_count(s->canfd_timer, 0); |
| ptimer_transaction_commit(s->canfd_timer); |
| |
| canfd_update_irq(s); |
| } |
| |
| static void update_status_register_mode_bits(XlnxVersalCANFDState *s) |
| { |
| bool sleep_status = ARRAY_FIELD_EX32(s->regs, STATUS_REGISTER, SLEEP); |
| bool sleep_mode = ARRAY_FIELD_EX32(s->regs, MODE_SELECT_REGISTER, SLEEP); |
| /* Wake up interrupt bit. */ |
| bool wakeup_irq_val = !sleep_mode && sleep_status; |
| /* Sleep interrupt bit. */ |
| bool sleep_irq_val = sleep_mode && !sleep_status; |
| |
| /* Clear previous core mode status bits. */ |
| ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, LBACK, 0); |
| ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, SLEEP, 0); |
| ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, SNOOP, 0); |
| ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, NORMAL, 0); |
| |
| /* set current mode bit and generate irqs accordingly. */ |
| if (ARRAY_FIELD_EX32(s->regs, MODE_SELECT_REGISTER, LBACK)) { |
| ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, LBACK, 1); |
| } else if (ARRAY_FIELD_EX32(s->regs, MODE_SELECT_REGISTER, SLEEP)) { |
| ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, SLEEP, 1); |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, SLP, |
| sleep_irq_val); |
| } else if (ARRAY_FIELD_EX32(s->regs, MODE_SELECT_REGISTER, SNOOP)) { |
| ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, SNOOP, 1); |
| } else { |
| /* If all bits are zero, XlnxVersalCANFDState is set in normal mode. */ |
| ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, NORMAL, 1); |
| /* Set wakeup interrupt bit. */ |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, WKUP, |
| wakeup_irq_val); |
| } |
| |
| /* Put the CANFD in error active state. */ |
| ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, ESTAT, 1); |
| |
| canfd_update_irq(s); |
| } |
| |
| static uint64_t canfd_msr_pre_write(RegisterInfo *reg, uint64_t val64) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); |
| uint32_t val = val64; |
| uint8_t multi_mode = 0; |
| |
| /* |
| * Multiple mode set check. This is done to make sure user doesn't set |
| * multiple modes. |
| */ |
| multi_mode = FIELD_EX32(val, MODE_SELECT_REGISTER, LBACK) + |
| FIELD_EX32(val, MODE_SELECT_REGISTER, SLEEP) + |
| FIELD_EX32(val, MODE_SELECT_REGISTER, SNOOP); |
| |
| if (multi_mode > 1) { |
| qemu_log_mask(LOG_GUEST_ERROR, "Attempting to configure several modes" |
| " simultaneously. One mode will be selected according to" |
| " their priority: LBACK > SLEEP > SNOOP.\n"); |
| } |
| |
| if (ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, CEN) == 0) { |
| /* In configuration mode, any mode can be selected. */ |
| s->regs[R_MODE_SELECT_REGISTER] = val; |
| } else { |
| bool sleep_mode_bit = FIELD_EX32(val, MODE_SELECT_REGISTER, SLEEP); |
| |
| ARRAY_FIELD_DP32(s->regs, MODE_SELECT_REGISTER, SLEEP, sleep_mode_bit); |
| |
| if (FIELD_EX32(val, MODE_SELECT_REGISTER, LBACK)) { |
| qemu_log_mask(LOG_GUEST_ERROR, "Attempting to set LBACK mode" |
| " without setting CEN bit as 0\n"); |
| } else if (FIELD_EX32(val, MODE_SELECT_REGISTER, SNOOP)) { |
| qemu_log_mask(LOG_GUEST_ERROR, "Attempting to set SNOOP mode" |
| " without setting CEN bit as 0\n"); |
| } |
| |
| update_status_register_mode_bits(s); |
| } |
| |
| return s->regs[R_MODE_SELECT_REGISTER]; |
| } |
| |
| static void canfd_exit_sleep_mode(XlnxVersalCANFDState *s) |
| { |
| ARRAY_FIELD_DP32(s->regs, MODE_SELECT_REGISTER, SLEEP, 0); |
| update_status_register_mode_bits(s); |
| } |
| |
| static void regs2frame(XlnxVersalCANFDState *s, qemu_can_frame *frame, |
| uint32_t reg_num) |
| { |
| uint32_t i = 0; |
| uint32_t j = 0; |
| uint32_t val = 0; |
| uint32_t dlc_reg_val = 0; |
| uint32_t dlc_value = 0; |
| |
| /* Check that reg_num should be within TX register space. */ |
| assert(reg_num <= R_TB_ID_REGISTER + (NUM_REGS_PER_MSG_SPACE * |
| s->cfg.tx_fifo)); |
| |
| dlc_reg_val = s->regs[reg_num + 1]; |
| dlc_value = FIELD_EX32(dlc_reg_val, TB0_DLC_REGISTER, DLC); |
| |
| frame->can_id = s->regs[reg_num]; |
| |
| if (FIELD_EX32(dlc_reg_val, TB0_DLC_REGISTER, FDF)) { |
| /* |
| * CANFD frame. |
| * Converting dlc(0 to 15) 4 Byte data to plain length(i.e. 0 to 64) |
| * 1 Byte data. This is done to make it work with SocketCAN. |
| * On actual CANFD frame, this value can't be more than 0xF. |
| * Conversion table for DLC to plain length: |
| * |
| * DLC Plain Length |
| * 0 - 8 0 - 8 |
| * 9 9 - 12 |
| * 10 13 - 16 |
| * 11 17 - 20 |
| * 12 21 - 24 |
| * 13 25 - 32 |
| * 14 33 - 48 |
| * 15 49 - 64 |
| */ |
| |
| frame->flags = QEMU_CAN_FRMF_TYPE_FD; |
| |
| if (dlc_value < 8) { |
| frame->can_dlc = dlc_value; |
| } else { |
| assert((dlc_value - 8) < ARRAY_SIZE(canfd_dlc_array)); |
| frame->can_dlc = canfd_dlc_array[dlc_value - 8]; |
| } |
| } else { |
| /* |
| * FD Format bit not set that means it is a CAN Frame. |
| * Conversion table for classic CAN: |
| * |
| * DLC Plain Length |
| * 0 - 7 0 - 7 |
| * 8 - 15 8 |
| */ |
| |
| if (dlc_value > 8) { |
| frame->can_dlc = 8; |
| qemu_log_mask(LOG_GUEST_ERROR, "Maximum DLC value for Classic CAN" |
| " frame is 8. Only 8 byte data will be sent.\n"); |
| } else { |
| frame->can_dlc = dlc_value; |
| } |
| } |
| |
| for (j = 0; j < frame->can_dlc; j++) { |
| val = 8 * i; |
| |
| frame->data[j] = extract32(s->regs[reg_num + 2 + (j / 4)], val, 8); |
| i++; |
| |
| if (i % 4 == 0) { |
| i = 0; |
| } |
| } |
| } |
| |
| static void process_cancellation_requests(XlnxVersalCANFDState *s) |
| { |
| uint32_t clear_mask = s->regs[R_TX_BUFFER_READY_REQUEST_REGISTER] & |
| s->regs[R_TX_BUFFER_CANCEL_REQUEST_REGISTER]; |
| |
| s->regs[R_TX_BUFFER_READY_REQUEST_REGISTER] &= ~clear_mask; |
| s->regs[R_TX_BUFFER_CANCEL_REQUEST_REGISTER] &= ~clear_mask; |
| |
| canfd_update_irq(s); |
| } |
| |
| static void 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) |
| { |
| int i; |
| bool is_canfd_frame; |
| uint8_t dlc = frame->can_dlc; |
| uint8_t rx_reg_num = 0; |
| uint32_t dlc_reg_val = 0; |
| uint32_t data_reg_val = 0; |
| |
| /* Getting RX0/1 fill level */ |
| if ((fill_level) > rx_fifo - 1) { |
| g_autofree char *path = object_get_canonical_path(OBJECT(s)); |
| |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: RX%d Buffer is full. Discarding the" |
| " message\n", path, rx_fifo_id); |
| |
| /* Set the corresponding RF buffer overflow interrupt. */ |
| if (rx_fifo_id == 0) { |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXFOFLW, 1); |
| } else { |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXFOFLW_1, 1); |
| } |
| } else { |
| uint16_t rx_timestamp = CANFD_TIMER_MAX - |
| ptimer_get_count(s->canfd_timer); |
| |
| if (rx_timestamp == 0xFFFF) { |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, TSCNT_OFLW, 1); |
| } else { |
| ARRAY_FIELD_DP32(s->regs, TIMESTAMP_REGISTER, TIMESTAMP_CNT, |
| rx_timestamp); |
| } |
| |
| if (rx_fifo_id == 0) { |
| ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, FL, |
| fill_level + 1); |
| assert(store_location <= |
| R_RB_ID_REGISTER + (s->cfg.rx0_fifo * |
| NUM_REGS_PER_MSG_SPACE)); |
| } else { |
| ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, FL_1, |
| fill_level + 1); |
| assert(store_location <= |
| R_RB_ID_REGISTER_1 + (s->cfg.rx1_fifo * |
| NUM_REGS_PER_MSG_SPACE)); |
| } |
| |
| s->regs[store_location] = frame->can_id; |
| |
| dlc = frame->can_dlc; |
| |
| if (frame->flags == QEMU_CAN_FRMF_TYPE_FD) { |
| is_canfd_frame = true; |
| |
| /* Store dlc value in Xilinx specific format. */ |
| for (i = 0; i < ARRAY_SIZE(canfd_dlc_array); i++) { |
| if (canfd_dlc_array[i] == frame->can_dlc) { |
| dlc_reg_val = FIELD_DP32(0, RB_DLC_REGISTER, DLC, 8 + i); |
| } |
| } |
| } else { |
| is_canfd_frame = false; |
| |
| if (frame->can_dlc > 8) { |
| dlc = 8; |
| } |
| |
| dlc_reg_val = FIELD_DP32(0, RB_DLC_REGISTER, DLC, dlc); |
| } |
| |
| dlc_reg_val |= FIELD_DP32(0, RB_DLC_REGISTER, FDF, is_canfd_frame); |
| dlc_reg_val |= FIELD_DP32(0, RB_DLC_REGISTER, TIMESTAMP, rx_timestamp); |
| dlc_reg_val |= FIELD_DP32(0, RB_DLC_REGISTER, MATCHED_FILTER_INDEX, |
| filter_index); |
| s->regs[store_location + 1] = dlc_reg_val; |
| |
| for (i = 0; i < dlc; i++) { |
| /* Register size is 4 byte but frame->data each is 1 byte. */ |
| switch (i % 4) { |
| case 0: |
| rx_reg_num = i / 4; |
| |
| data_reg_val = FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTES3, |
| frame->data[i]); |
| break; |
| case 1: |
| data_reg_val |= FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTES2, |
| frame->data[i]); |
| break; |
| case 2: |
| data_reg_val |= FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTES1, |
| frame->data[i]); |
| break; |
| case 3: |
| data_reg_val |= FIELD_DP32(0, RB_DW0_REGISTER, DATA_BYTES0, |
| frame->data[i]); |
| /* |
| * Last Bytes data which means we have all 4 bytes ready to |
| * store in one rx regs. |
| */ |
| s->regs[store_location + rx_reg_num + 2] = data_reg_val; |
| break; |
| } |
| } |
| |
| if (i % 4) { |
| /* |
| * In case DLC is not multiplier of 4, data is not saved to RX FIFO |
| * in above switch case. Store the remaining bytes here. |
| */ |
| s->regs[store_location + rx_reg_num + 2] = data_reg_val; |
| } |
| |
| /* set the interrupt as RXOK. */ |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXOK, 1); |
| } |
| } |
| |
| static void update_rx_sequential(XlnxVersalCANFDState *s, |
| const qemu_can_frame *frame) |
| { |
| bool filter_pass = false; |
| uint8_t filter_index = 0; |
| int i; |
| int filter_partition = ARRAY_FIELD_EX32(s->regs, |
| RX_FIFO_WATERMARK_REGISTER, RXFP); |
| uint32_t store_location; |
| uint32_t fill_level; |
| uint32_t read_index; |
| uint8_t store_index = 0; |
| g_autofree char *path = NULL; |
| /* |
| * If all UAF bits are set to 0, then received messages are not stored |
| * in the RX buffers. |
| */ |
| if (s->regs[R_ACCEPTANCE_FILTER_CONTROL_REGISTER]) { |
| uint32_t acceptance_filter_status = |
| s->regs[R_ACCEPTANCE_FILTER_CONTROL_REGISTER]; |
| |
| for (i = 0; i < 32; i++) { |
| if (acceptance_filter_status & 0x1) { |
| uint32_t msg_id_masked = s->regs[R_AFMR_REGISTER + 2 * i] & |
| frame->can_id; |
| uint32_t afir_id_masked = s->regs[R_AFIR_REGISTER + 2 * i] & |
| s->regs[R_AFMR_REGISTER + 2 * i]; |
| uint16_t std_msg_id_masked = FIELD_EX32(msg_id_masked, |
| AFIR_REGISTER, AIID); |
| uint16_t std_afir_id_masked = FIELD_EX32(afir_id_masked, |
| AFIR_REGISTER, AIID); |
| uint32_t ext_msg_id_masked = FIELD_EX32(msg_id_masked, |
| AFIR_REGISTER, |
| AIID_EXT); |
| uint32_t ext_afir_id_masked = FIELD_EX32(afir_id_masked, |
| AFIR_REGISTER, |
| AIID_EXT); |
| bool ext_ide = FIELD_EX32(s->regs[R_AFMR_REGISTER + 2 * i], |
| AFMR_REGISTER, AMIDE); |
| |
| if (std_msg_id_masked == std_afir_id_masked) { |
| if (ext_ide) { |
| /* Extended message ID message. */ |
| if (ext_msg_id_masked == ext_afir_id_masked) { |
| filter_pass = true; |
| filter_index = i; |
| |
| break; |
| } |
| } else { |
| /* Standard message ID. */ |
| filter_pass = true; |
| filter_index = i; |
| |
| break; |
| } |
| } |
| } |
| acceptance_filter_status >>= 1; |
| } |
| } |
| |
| if (!filter_pass) { |
| path = object_get_canonical_path(OBJECT(s)); |
| |
| trace_xlnx_canfd_rx_fifo_filter_reject(path, frame->can_id, |
| frame->can_dlc); |
| } else { |
| if (filter_index <= filter_partition) { |
| fill_level = ARRAY_FIELD_EX32(s->regs, RX_FIFO_STATUS_REGISTER, FL); |
| read_index = ARRAY_FIELD_EX32(s->regs, RX_FIFO_STATUS_REGISTER, RI); |
| store_index = read_index + fill_level; |
| |
| if (read_index == s->cfg.rx0_fifo - 1) { |
| /* |
| * When ri is s->cfg.rx0_fifo - 1 i.e. max, it goes cyclic that |
| * means we reset the ri to 0x0. |
| */ |
| read_index = 0; |
| ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, RI, |
| read_index); |
| } |
| |
| if (store_index > s->cfg.rx0_fifo - 1) { |
| store_index -= s->cfg.rx0_fifo - 1; |
| } |
| |
| store_location = R_RB_ID_REGISTER + |
| (store_index * NUM_REGS_PER_MSG_SPACE); |
| |
| store_rx_sequential(s, frame, fill_level, read_index, |
| store_location, s->cfg.rx0_fifo, 0, |
| filter_index); |
| } else { |
| /* RX 1 fill level message */ |
| fill_level = ARRAY_FIELD_EX32(s->regs, RX_FIFO_STATUS_REGISTER, |
| FL_1); |
| read_index = ARRAY_FIELD_EX32(s->regs, RX_FIFO_STATUS_REGISTER, |
| RI_1); |
| store_index = read_index + fill_level; |
| |
| if (read_index == s->cfg.rx1_fifo - 1) { |
| /* |
| * When ri is s->cfg.rx1_fifo - 1 i.e. max, it goes cyclic that |
| * means we reset the ri to 0x0. |
| */ |
| read_index = 0; |
| ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, RI_1, |
| read_index); |
| } |
| |
| if (store_index > s->cfg.rx1_fifo - 1) { |
| store_index -= s->cfg.rx1_fifo - 1; |
| } |
| |
| store_location = R_RB_ID_REGISTER_1 + |
| (store_index * NUM_REGS_PER_MSG_SPACE); |
| |
| store_rx_sequential(s, frame, fill_level, read_index, |
| store_location, s->cfg.rx1_fifo, 1, |
| filter_index); |
| } |
| |
| path = object_get_canonical_path(OBJECT(s)); |
| |
| trace_xlnx_canfd_rx_data(path, frame->can_id, frame->can_dlc, |
| frame->flags); |
| canfd_update_irq(s); |
| } |
| } |
| |
| static bool tx_ready_check(XlnxVersalCANFDState *s) |
| { |
| if (ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, SRST)) { |
| g_autofree char *path = object_get_canonical_path(OBJECT(s)); |
| |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: Attempting to transfer data while" |
| " XlnxVersalCANFDState is in reset mode\n", path); |
| |
| return false; |
| } |
| |
| if (ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, CEN) == 0) { |
| g_autofree char *path = object_get_canonical_path(OBJECT(s)); |
| |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: Attempting to transfer data while" |
| " XlnxVersalCANFDState is in configuration mode." |
| " Reset the core so operations can start fresh\n", |
| path); |
| return false; |
| } |
| |
| if (ARRAY_FIELD_EX32(s->regs, MODE_SELECT_REGISTER, SNOOP)) { |
| g_autofree char *path = object_get_canonical_path(OBJECT(s)); |
| |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: Attempting to transfer data while" |
| " XlnxVersalCANFDState is in SNOOP MODE\n", |
| path); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static void tx_fifo_stamp(XlnxVersalCANFDState *s, uint32_t tb0_regid) |
| { |
| /* |
| * If EFC bit in DLC message is set, this means we will store the |
| * event of this transmitted message with time stamp. |
| */ |
| uint32_t dlc_reg_val = 0; |
| |
| if (FIELD_EX32(s->regs[tb0_regid + 1], TB0_DLC_REGISTER, EFC)) { |
| uint8_t dlc_val = FIELD_EX32(s->regs[tb0_regid + 1], TB0_DLC_REGISTER, |
| DLC); |
| bool fdf_val = FIELD_EX32(s->regs[tb0_regid + 1], TB0_DLC_REGISTER, |
| FDF); |
| bool brs_val = FIELD_EX32(s->regs[tb0_regid + 1], TB0_DLC_REGISTER, |
| BRS); |
| uint8_t mm_val = FIELD_EX32(s->regs[tb0_regid + 1], TB0_DLC_REGISTER, |
| MM); |
| uint8_t fill_level = ARRAY_FIELD_EX32(s->regs, |
| TX_EVENT_FIFO_STATUS_REGISTER, |
| TXE_FL); |
| uint8_t read_index = ARRAY_FIELD_EX32(s->regs, |
| TX_EVENT_FIFO_STATUS_REGISTER, |
| TXE_RI); |
| uint8_t store_index = fill_level + read_index; |
| |
| if ((fill_level) > s->cfg.tx_fifo - 1) { |
| qemu_log_mask(LOG_GUEST_ERROR, "TX Event Buffer is full." |
| " Discarding the message\n"); |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, TXEOFLW, 1); |
| } else { |
| if (read_index == s->cfg.tx_fifo - 1) { |
| /* |
| * When ri is s->cfg.tx_fifo - 1 i.e. max, it goes cyclic that |
| * means we reset the ri to 0x0. |
| */ |
| read_index = 0; |
| ARRAY_FIELD_DP32(s->regs, TX_EVENT_FIFO_STATUS_REGISTER, TXE_RI, |
| read_index); |
| } |
| |
| if (store_index > s->cfg.tx_fifo - 1) { |
| store_index -= s->cfg.tx_fifo - 1; |
| } |
| |
| assert(store_index < s->cfg.tx_fifo); |
| |
| uint32_t tx_event_reg0_id = R_TXE_FIFO_TB_ID_REGISTER + |
| (store_index * 2); |
| |
| /* Store message ID in TX event register. */ |
| s->regs[tx_event_reg0_id] = s->regs[tb0_regid]; |
| |
| uint16_t tx_timestamp = CANFD_TIMER_MAX - |
| ptimer_get_count(s->canfd_timer); |
| |
| /* Store DLC with time stamp in DLC regs. */ |
| dlc_reg_val = FIELD_DP32(0, TXE_FIFO_TB_DLC_REGISTER, DLC, dlc_val); |
| dlc_reg_val |= FIELD_DP32(0, TXE_FIFO_TB_DLC_REGISTER, FDF, |
| fdf_val); |
| dlc_reg_val |= FIELD_DP32(0, TXE_FIFO_TB_DLC_REGISTER, BRS, |
| brs_val); |
| dlc_reg_val |= FIELD_DP32(0, TXE_FIFO_TB_DLC_REGISTER, ET, 0x3); |
| dlc_reg_val |= FIELD_DP32(0, TXE_FIFO_TB_DLC_REGISTER, MM, mm_val); |
| dlc_reg_val |= FIELD_DP32(0, TXE_FIFO_TB_DLC_REGISTER, TIMESTAMP, |
| tx_timestamp); |
| s->regs[tx_event_reg0_id + 1] = dlc_reg_val; |
| |
| ARRAY_FIELD_DP32(s->regs, TX_EVENT_FIFO_STATUS_REGISTER, TXE_FL, |
| fill_level + 1); |
| } |
| } |
| } |
| |
| static gint g_cmp_ids(gconstpointer data1, gconstpointer data2) |
| { |
| tx_ready_reg_info *tx_reg_1 = (tx_ready_reg_info *) data1; |
| tx_ready_reg_info *tx_reg_2 = (tx_ready_reg_info *) data2; |
| |
| if (tx_reg_1->can_id == tx_reg_2->can_id) { |
| return (tx_reg_1->reg_num < tx_reg_2->reg_num) ? -1 : 1; |
| } |
| return (tx_reg_1->can_id < tx_reg_2->can_id) ? -1 : 1; |
| } |
| |
| static void free_list(GSList *list) |
| { |
| GSList *iterator = NULL; |
| |
| for (iterator = list; iterator != NULL; iterator = iterator->next) { |
| g_free((tx_ready_reg_info *)iterator->data); |
| } |
| |
| g_slist_free(list); |
| |
| return; |
| } |
| |
| static GSList *prepare_tx_data(XlnxVersalCANFDState *s) |
| { |
| uint8_t i = 0; |
| GSList *list = NULL; |
| uint32_t reg_num = 0; |
| uint32_t reg_ready = s->regs[R_TX_BUFFER_READY_REQUEST_REGISTER]; |
| |
| /* First find the messages which are ready for transmission. */ |
| for (i = 0; i < s->cfg.tx_fifo; i++) { |
| if (reg_ready & 1) { |
| reg_num = R_TB_ID_REGISTER + (NUM_REGS_PER_MSG_SPACE * i); |
| tx_ready_reg_info *temp = g_new(tx_ready_reg_info, 1); |
| |
| temp->can_id = s->regs[reg_num]; |
| temp->reg_num = reg_num; |
| list = g_slist_prepend(list, temp); |
| list = g_slist_sort(list, g_cmp_ids); |
| } |
| |
| reg_ready >>= 1; |
| } |
| |
| s->regs[R_TX_BUFFER_READY_REQUEST_REGISTER] = 0; |
| s->regs[R_TX_BUFFER_CANCEL_REQUEST_REGISTER] = 0; |
| |
| return list; |
| } |
| |
| static void transfer_data(XlnxVersalCANFDState *s) |
| { |
| bool canfd_tx = tx_ready_check(s); |
| GSList *list, *iterator = NULL; |
| qemu_can_frame frame; |
| |
| if (!canfd_tx) { |
| g_autofree char *path = object_get_canonical_path(OBJECT(s)); |
| |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: Controller not enabled for data" |
| " transfer\n", path); |
| return; |
| } |
| |
| list = prepare_tx_data(s); |
| if (list == NULL) { |
| return; |
| } |
| |
| for (iterator = list; iterator != NULL; iterator = iterator->next) { |
| regs2frame(s, &frame, |
| ((tx_ready_reg_info *)iterator->data)->reg_num); |
| |
| if (ARRAY_FIELD_EX32(s->regs, STATUS_REGISTER, LBACK)) { |
| update_rx_sequential(s, &frame); |
| tx_fifo_stamp(s, ((tx_ready_reg_info *)iterator->data)->reg_num); |
| |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, RXOK, 1); |
| } else { |
| g_autofree char *path = object_get_canonical_path(OBJECT(s)); |
| |
| trace_xlnx_canfd_tx_data(path, frame.can_id, frame.can_dlc, |
| frame.flags); |
| can_bus_client_send(&s->bus_client, &frame, 1); |
| tx_fifo_stamp(s, |
| ((tx_ready_reg_info *)iterator->data)->reg_num); |
| |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, TXRRS, 1); |
| |
| if (ARRAY_FIELD_EX32(s->regs, STATUS_REGISTER, SLEEP)) { |
| canfd_exit_sleep_mode(s); |
| } |
| } |
| } |
| |
| ARRAY_FIELD_DP32(s->regs, INTERRUPT_STATUS_REGISTER, TXOK, 1); |
| free_list(list); |
| |
| canfd_update_irq(s); |
| } |
| |
| static uint64_t canfd_srr_pre_write(RegisterInfo *reg, uint64_t val64) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); |
| uint32_t val = val64; |
| |
| ARRAY_FIELD_DP32(s->regs, SOFTWARE_RESET_REGISTER, CEN, |
| FIELD_EX32(val, SOFTWARE_RESET_REGISTER, CEN)); |
| |
| if (FIELD_EX32(val, SOFTWARE_RESET_REGISTER, SRST)) { |
| g_autofree char *path = object_get_canonical_path(OBJECT(s)); |
| |
| trace_xlnx_canfd_reset(path, val64); |
| |
| /* First, core will do software reset then will enter in config mode. */ |
| canfd_config_reset(s); |
| } else if (ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, CEN) == 0) { |
| canfd_config_mode(s); |
| } else { |
| /* |
| * Leave config mode. Now XlnxVersalCANFD core will enter Normal, Sleep, |
| * snoop or Loopback mode depending upon LBACK, SLEEP, SNOOP register |
| * states. |
| */ |
| ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, CONFIG, 0); |
| |
| ptimer_transaction_begin(s->canfd_timer); |
| ptimer_set_count(s->canfd_timer, 0); |
| ptimer_transaction_commit(s->canfd_timer); |
| update_status_register_mode_bits(s); |
| transfer_data(s); |
| } |
| |
| return s->regs[R_SOFTWARE_RESET_REGISTER]; |
| } |
| |
| static uint64_t filter_mask(RegisterInfo *reg, uint64_t val64) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); |
| uint32_t reg_idx = (reg->access->addr) / 4; |
| uint32_t val = val64; |
| uint32_t filter_offset = (reg_idx - R_AFMR_REGISTER) / 2; |
| |
| if (!(s->regs[R_ACCEPTANCE_FILTER_CONTROL_REGISTER] & |
| (1 << filter_offset))) { |
| s->regs[reg_idx] = val; |
| } else { |
| g_autofree char *path = object_get_canonical_path(OBJECT(s)); |
| |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: Acceptance filter %d not enabled\n", |
| path, filter_offset + 1); |
| } |
| |
| return s->regs[reg_idx]; |
| } |
| |
| static uint64_t filter_id(RegisterInfo *reg, uint64_t val64) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); |
| hwaddr reg_idx = (reg->access->addr) / 4; |
| uint32_t val = val64; |
| uint32_t filter_offset = (reg_idx - R_AFIR_REGISTER) / 2; |
| |
| if (!(s->regs[R_ACCEPTANCE_FILTER_CONTROL_REGISTER] & |
| (1 << filter_offset))) { |
| s->regs[reg_idx] = val; |
| } else { |
| g_autofree char *path = object_get_canonical_path(OBJECT(s)); |
| |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: Acceptance filter %d not enabled\n", |
| path, filter_offset + 1); |
| } |
| |
| return s->regs[reg_idx]; |
| } |
| |
| static uint64_t canfd_tx_fifo_status_prew(RegisterInfo *reg, uint64_t val64) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); |
| uint32_t val = val64; |
| uint8_t read_ind = 0; |
| uint8_t fill_ind = ARRAY_FIELD_EX32(s->regs, TX_EVENT_FIFO_STATUS_REGISTER, |
| TXE_FL); |
| |
| if (FIELD_EX32(val, TX_EVENT_FIFO_STATUS_REGISTER, TXE_IRI) && fill_ind) { |
| read_ind = ARRAY_FIELD_EX32(s->regs, TX_EVENT_FIFO_STATUS_REGISTER, |
| TXE_RI) + 1; |
| |
| if (read_ind > s->cfg.tx_fifo - 1) { |
| read_ind = 0; |
| } |
| |
| /* |
| * Increase the read index by 1 and decrease the fill level by 1. |
| */ |
| ARRAY_FIELD_DP32(s->regs, TX_EVENT_FIFO_STATUS_REGISTER, TXE_RI, |
| read_ind); |
| ARRAY_FIELD_DP32(s->regs, TX_EVENT_FIFO_STATUS_REGISTER, TXE_FL, |
| fill_ind - 1); |
| } |
| |
| return s->regs[R_TX_EVENT_FIFO_STATUS_REGISTER]; |
| } |
| |
| static uint64_t canfd_rx_fifo_status_prew(RegisterInfo *reg, uint64_t val64) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); |
| uint32_t val = val64; |
| uint8_t read_ind = 0; |
| uint8_t fill_ind = 0; |
| |
| if (FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, IRI)) { |
| /* FL index is zero, setting IRI bit has no effect. */ |
| if (FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, FL) != 0) { |
| read_ind = FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, RI) + 1; |
| |
| if (read_ind > s->cfg.rx0_fifo - 1) { |
| read_ind = 0; |
| } |
| |
| fill_ind = FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, FL) - 1; |
| |
| ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, RI, read_ind); |
| ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, FL, fill_ind); |
| } |
| } |
| |
| if (FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, IRI_1)) { |
| /* FL_1 index is zero, setting IRI_1 bit has no effect. */ |
| if (FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, FL_1) != 0) { |
| read_ind = FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, RI_1) + 1; |
| |
| if (read_ind > s->cfg.rx1_fifo - 1) { |
| read_ind = 0; |
| } |
| |
| fill_ind = FIELD_EX32(val, RX_FIFO_STATUS_REGISTER, FL_1) - 1; |
| |
| ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, RI_1, read_ind); |
| ARRAY_FIELD_DP32(s->regs, RX_FIFO_STATUS_REGISTER, FL_1, fill_ind); |
| } |
| } |
| |
| return s->regs[R_RX_FIFO_STATUS_REGISTER]; |
| } |
| |
| static uint64_t canfd_tsr_pre_write(RegisterInfo *reg, uint64_t val64) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); |
| uint32_t val = val64; |
| |
| if (FIELD_EX32(val, TIMESTAMP_REGISTER, CTS)) { |
| ARRAY_FIELD_DP32(s->regs, TIMESTAMP_REGISTER, TIMESTAMP_CNT, 0); |
| ptimer_transaction_begin(s->canfd_timer); |
| ptimer_set_count(s->canfd_timer, 0); |
| ptimer_transaction_commit(s->canfd_timer); |
| } |
| |
| return 0; |
| } |
| |
| static uint64_t canfd_trr_reg_prew(RegisterInfo *reg, uint64_t val64) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); |
| |
| if (ARRAY_FIELD_EX32(s->regs, MODE_SELECT_REGISTER, SNOOP)) { |
| g_autofree char *path = object_get_canonical_path(OBJECT(s)); |
| |
| qemu_log_mask(LOG_GUEST_ERROR, "%s: Controller is in SNOOP mode." |
| " tx_ready_register will stay in reset mode\n", path); |
| return 0; |
| } else { |
| return val64; |
| } |
| } |
| |
| static void canfd_trr_reg_postw(RegisterInfo *reg, uint64_t val64) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); |
| |
| transfer_data(s); |
| } |
| |
| static void canfd_cancel_reg_postw(RegisterInfo *reg, uint64_t val64) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); |
| |
| process_cancellation_requests(s); |
| } |
| |
| static uint64_t canfd_write_check_prew(RegisterInfo *reg, uint64_t val64) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(reg->opaque); |
| uint32_t val = val64; |
| |
| if (ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, CEN) == 0) { |
| return val; |
| } |
| return 0; |
| } |
| |
| static const RegisterAccessInfo canfd_tx_regs[] = { |
| { .name = "TB_ID_REGISTER", .addr = A_TB_ID_REGISTER, |
| },{ .name = "TB0_DLC_REGISTER", .addr = A_TB0_DLC_REGISTER, |
| },{ .name = "TB_DW0_REGISTER", .addr = A_TB_DW0_REGISTER, |
| },{ .name = "TB_DW1_REGISTER", .addr = A_TB_DW1_REGISTER, |
| },{ .name = "TB_DW2_REGISTER", .addr = A_TB_DW2_REGISTER, |
| },{ .name = "TB_DW3_REGISTER", .addr = A_TB_DW3_REGISTER, |
| },{ .name = "TB_DW4_REGISTER", .addr = A_TB_DW4_REGISTER, |
| },{ .name = "TB_DW5_REGISTER", .addr = A_TB_DW5_REGISTER, |
| },{ .name = "TB_DW6_REGISTER", .addr = A_TB_DW6_REGISTER, |
| },{ .name = "TB_DW7_REGISTER", .addr = A_TB_DW7_REGISTER, |
| },{ .name = "TB_DW8_REGISTER", .addr = A_TB_DW8_REGISTER, |
| },{ .name = "TB_DW9_REGISTER", .addr = A_TB_DW9_REGISTER, |
| },{ .name = "TB_DW10_REGISTER", .addr = A_TB_DW10_REGISTER, |
| },{ .name = "TB_DW11_REGISTER", .addr = A_TB_DW11_REGISTER, |
| },{ .name = "TB_DW12_REGISTER", .addr = A_TB_DW12_REGISTER, |
| },{ .name = "TB_DW13_REGISTER", .addr = A_TB_DW13_REGISTER, |
| },{ .name = "TB_DW14_REGISTER", .addr = A_TB_DW14_REGISTER, |
| },{ .name = "TB_DW15_REGISTER", .addr = A_TB_DW15_REGISTER, |
| } |
| }; |
| |
| static const RegisterAccessInfo canfd_rx0_regs[] = { |
| { .name = "RB_ID_REGISTER", .addr = A_RB_ID_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DLC_REGISTER", .addr = A_RB_DLC_REGISTER, |
| .ro = 0xfe1fffff, |
| },{ .name = "RB_DW0_REGISTER", .addr = A_RB_DW0_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW1_REGISTER", .addr = A_RB_DW1_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW2_REGISTER", .addr = A_RB_DW2_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW3_REGISTER", .addr = A_RB_DW3_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW4_REGISTER", .addr = A_RB_DW4_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW5_REGISTER", .addr = A_RB_DW5_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW6_REGISTER", .addr = A_RB_DW6_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW7_REGISTER", .addr = A_RB_DW7_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW8_REGISTER", .addr = A_RB_DW8_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW9_REGISTER", .addr = A_RB_DW9_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW10_REGISTER", .addr = A_RB_DW10_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW11_REGISTER", .addr = A_RB_DW11_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW12_REGISTER", .addr = A_RB_DW12_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW13_REGISTER", .addr = A_RB_DW13_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW14_REGISTER", .addr = A_RB_DW14_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW15_REGISTER", .addr = A_RB_DW15_REGISTER, |
| .ro = 0xffffffff, |
| } |
| }; |
| |
| static const RegisterAccessInfo canfd_rx1_regs[] = { |
| { .name = "RB_ID_REGISTER_1", .addr = A_RB_ID_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DLC_REGISTER_1", .addr = A_RB_DLC_REGISTER_1, |
| .ro = 0xfe1fffff, |
| },{ .name = "RB0_DW0_REGISTER_1", .addr = A_RB0_DW0_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW1_REGISTER_1", .addr = A_RB_DW1_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW2_REGISTER_1", .addr = A_RB_DW2_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW3_REGISTER_1", .addr = A_RB_DW3_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW4_REGISTER_1", .addr = A_RB_DW4_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW5_REGISTER_1", .addr = A_RB_DW5_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW6_REGISTER_1", .addr = A_RB_DW6_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW7_REGISTER_1", .addr = A_RB_DW7_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW8_REGISTER_1", .addr = A_RB_DW8_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW9_REGISTER_1", .addr = A_RB_DW9_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW10_REGISTER_1", .addr = A_RB_DW10_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW11_REGISTER_1", .addr = A_RB_DW11_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW12_REGISTER_1", .addr = A_RB_DW12_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW13_REGISTER_1", .addr = A_RB_DW13_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW14_REGISTER_1", .addr = A_RB_DW14_REGISTER_1, |
| .ro = 0xffffffff, |
| },{ .name = "RB_DW15_REGISTER_1", .addr = A_RB_DW15_REGISTER_1, |
| .ro = 0xffffffff, |
| } |
| }; |
| |
| /* Acceptance filter registers. */ |
| static const RegisterAccessInfo canfd_af_regs[] = { |
| { .name = "AFMR_REGISTER", .addr = A_AFMR_REGISTER, |
| .pre_write = filter_mask, |
| },{ .name = "AFIR_REGISTER", .addr = A_AFIR_REGISTER, |
| .pre_write = filter_id, |
| } |
| }; |
| |
| static const RegisterAccessInfo canfd_txe_regs[] = { |
| { .name = "TXE_FIFO_TB_ID_REGISTER", .addr = A_TXE_FIFO_TB_ID_REGISTER, |
| .ro = 0xffffffff, |
| },{ .name = "TXE_FIFO_TB_DLC_REGISTER", .addr = A_TXE_FIFO_TB_DLC_REGISTER, |
| .ro = 0xffffffff, |
| } |
| }; |
| |
| static const RegisterAccessInfo canfd_regs_info[] = { |
| { .name = "SOFTWARE_RESET_REGISTER", .addr = A_SOFTWARE_RESET_REGISTER, |
| .pre_write = canfd_srr_pre_write, |
| },{ .name = "MODE_SELECT_REGISTER", .addr = A_MODE_SELECT_REGISTER, |
| .pre_write = canfd_msr_pre_write, |
| },{ .name = "ARBITRATION_PHASE_BAUD_RATE_PRESCALER_REGISTER", |
| .addr = A_ARBITRATION_PHASE_BAUD_RATE_PRESCALER_REGISTER, |
| .pre_write = canfd_write_check_prew, |
| },{ .name = "ARBITRATION_PHASE_BIT_TIMING_REGISTER", |
| .addr = A_ARBITRATION_PHASE_BIT_TIMING_REGISTER, |
| .pre_write = canfd_write_check_prew, |
| },{ .name = "ERROR_COUNTER_REGISTER", .addr = A_ERROR_COUNTER_REGISTER, |
| .ro = 0xffff, |
| },{ .name = "ERROR_STATUS_REGISTER", .addr = A_ERROR_STATUS_REGISTER, |
| .w1c = 0xf1f, |
| },{ .name = "STATUS_REGISTER", .addr = A_STATUS_REGISTER, |
| .reset = 0x1, |
| .ro = 0x7f17ff, |
| },{ .name = "INTERRUPT_STATUS_REGISTER", |
| .addr = A_INTERRUPT_STATUS_REGISTER, |
| .ro = 0xffffff7f, |
| },{ .name = "INTERRUPT_ENABLE_REGISTER", |
| .addr = A_INTERRUPT_ENABLE_REGISTER, |
| .post_write = canfd_ier_post_write, |
| },{ .name = "INTERRUPT_CLEAR_REGISTER", |
| .addr = A_INTERRUPT_CLEAR_REGISTER, .pre_write = canfd_icr_pre_write, |
| },{ .name = "TIMESTAMP_REGISTER", .addr = A_TIMESTAMP_REGISTER, |
| .ro = 0xffff0000, |
| .pre_write = canfd_tsr_pre_write, |
| },{ .name = "DATA_PHASE_BAUD_RATE_PRESCALER_REGISTER", |
| .addr = A_DATA_PHASE_BAUD_RATE_PRESCALER_REGISTER, |
| .pre_write = canfd_write_check_prew, |
| },{ .name = "DATA_PHASE_BIT_TIMING_REGISTER", |
| .addr = A_DATA_PHASE_BIT_TIMING_REGISTER, |
| .pre_write = canfd_write_check_prew, |
| },{ .name = "TX_BUFFER_READY_REQUEST_REGISTER", |
| .addr = A_TX_BUFFER_READY_REQUEST_REGISTER, |
| .pre_write = canfd_trr_reg_prew, |
| .post_write = canfd_trr_reg_postw, |
| },{ .name = "INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER", |
| .addr = A_INTERRUPT_ENABLE_TX_BUFFER_READY_REQUEST_REGISTER, |
| },{ .name = "TX_BUFFER_CANCEL_REQUEST_REGISTER", |
| .addr = A_TX_BUFFER_CANCEL_REQUEST_REGISTER, |
| .post_write = canfd_cancel_reg_postw, |
| },{ .name = "INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER", |
| .addr = A_INTERRUPT_ENABLE_TX_BUFFER_CANCELLATION_REQUEST_REGISTER, |
| },{ .name = "TX_EVENT_FIFO_STATUS_REGISTER", |
| .addr = A_TX_EVENT_FIFO_STATUS_REGISTER, |
| .ro = 0x3f1f, .pre_write = canfd_tx_fifo_status_prew, |
| },{ .name = "TX_EVENT_FIFO_WATERMARK_REGISTER", |
| .addr = A_TX_EVENT_FIFO_WATERMARK_REGISTER, |
| .reset = 0xf, |
| .pre_write = canfd_write_check_prew, |
| },{ .name = "ACCEPTANCE_FILTER_CONTROL_REGISTER", |
| .addr = A_ACCEPTANCE_FILTER_CONTROL_REGISTER, |
| },{ .name = "RX_FIFO_STATUS_REGISTER", .addr = A_RX_FIFO_STATUS_REGISTER, |
| .ro = 0x7f3f7f3f, .pre_write = canfd_rx_fifo_status_prew, |
| },{ .name = "RX_FIFO_WATERMARK_REGISTER", |
| .addr = A_RX_FIFO_WATERMARK_REGISTER, |
| .reset = 0x1f0f0f, |
| .pre_write = canfd_write_check_prew, |
| } |
| }; |
| |
| static void xlnx_versal_canfd_ptimer_cb(void *opaque) |
| { |
| /* No action required on the timer rollover. */ |
| } |
| |
| static const MemoryRegionOps canfd_ops = { |
| .read = register_read_memory, |
| .write = register_write_memory, |
| .endianness = DEVICE_LITTLE_ENDIAN, |
| .valid = { |
| .min_access_size = 4, |
| .max_access_size = 4, |
| }, |
| }; |
| |
| static void canfd_reset(DeviceState *dev) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(dev); |
| unsigned int i; |
| |
| for (i = 0; i < ARRAY_SIZE(s->reg_info); ++i) { |
| register_reset(&s->reg_info[i]); |
| } |
| |
| ptimer_transaction_begin(s->canfd_timer); |
| ptimer_set_count(s->canfd_timer, 0); |
| ptimer_transaction_commit(s->canfd_timer); |
| } |
| |
| static bool can_xilinx_canfd_receive(CanBusClientState *client) |
| { |
| XlnxVersalCANFDState *s = container_of(client, XlnxVersalCANFDState, |
| bus_client); |
| |
| bool reset_state = ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, SRST); |
| bool can_enabled = ARRAY_FIELD_EX32(s->regs, SOFTWARE_RESET_REGISTER, CEN); |
| |
| return !reset_state && can_enabled; |
| } |
| |
| static ssize_t canfd_xilinx_receive(CanBusClientState *client, |
| const qemu_can_frame *buf, |
| size_t buf_size) |
| { |
| XlnxVersalCANFDState *s = container_of(client, XlnxVersalCANFDState, |
| bus_client); |
| const qemu_can_frame *frame = buf; |
| |
| assert(buf_size > 0); |
| |
| if (ARRAY_FIELD_EX32(s->regs, STATUS_REGISTER, LBACK)) { |
| /* |
| * XlnxVersalCANFDState will not participate in normal bus communication |
| * and does not receive any messages transmitted by other CAN nodes. |
| */ |
| return 1; |
| } |
| |
| /* Update the status register that we are receiving message. */ |
| ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, BBSY, 1); |
| |
| if (ARRAY_FIELD_EX32(s->regs, STATUS_REGISTER, SNOOP)) { |
| /* Snoop Mode: Just keep the data. no response back. */ |
| update_rx_sequential(s, frame); |
| } else { |
| if ((ARRAY_FIELD_EX32(s->regs, STATUS_REGISTER, SLEEP))) { |
| /* |
| * XlnxVersalCANFDState is in sleep mode. Any data on bus will bring |
| * it to the wake up state. |
| */ |
| canfd_exit_sleep_mode(s); |
| } |
| |
| update_rx_sequential(s, frame); |
| } |
| |
| /* Message processing done. Update the status back to !busy */ |
| ARRAY_FIELD_DP32(s->regs, STATUS_REGISTER, BBSY, 0); |
| return 1; |
| } |
| |
| static CanBusClientInfo canfd_xilinx_bus_client_info = { |
| .can_receive = can_xilinx_canfd_receive, |
| .receive = canfd_xilinx_receive, |
| }; |
| |
| static int xlnx_canfd_connect_to_bus(XlnxVersalCANFDState *s, |
| CanBusState *bus) |
| { |
| s->bus_client.info = &canfd_xilinx_bus_client_info; |
| |
| return can_bus_insert_client(bus, &s->bus_client); |
| } |
| |
| #define NUM_REG_PER_AF ARRAY_SIZE(canfd_af_regs) |
| #define NUM_AF 32 |
| #define NUM_REG_PER_TXE ARRAY_SIZE(canfd_txe_regs) |
| #define NUM_TXE 32 |
| |
| static int canfd_populate_regarray(XlnxVersalCANFDState *s, |
| RegisterInfoArray *r_array, int pos, |
| const RegisterAccessInfo *rae, |
| int num_rae) |
| { |
| int i; |
| |
| for (i = 0; i < num_rae; i++) { |
| int index = rae[i].addr / 4; |
| RegisterInfo *r = &s->reg_info[index]; |
| |
| object_initialize(r, sizeof(*r), TYPE_REGISTER); |
| |
| *r = (RegisterInfo) { |
| .data = &s->regs[index], |
| .data_size = sizeof(uint32_t), |
| .access = &rae[i], |
| .opaque = OBJECT(s), |
| }; |
| |
| r_array->r[i + pos] = r; |
| } |
| return i + pos; |
| } |
| |
| static void canfd_create_rai(RegisterAccessInfo *rai_array, |
| const RegisterAccessInfo *canfd_regs, |
| int template_rai_array_sz, |
| int num_template_to_copy) |
| { |
| int i; |
| int reg_num; |
| |
| for (reg_num = 0; reg_num < num_template_to_copy; reg_num++) { |
| int pos = reg_num * template_rai_array_sz; |
| |
| memcpy(rai_array + pos, canfd_regs, |
| template_rai_array_sz * sizeof(RegisterAccessInfo)); |
| |
| for (i = 0; i < template_rai_array_sz; i++) { |
| const char *name = canfd_regs[i].name; |
| uint64_t addr = canfd_regs[i].addr; |
| rai_array[i + pos].name = g_strdup_printf("%s%d", name, reg_num); |
| rai_array[i + pos].addr = addr + pos * 4; |
| } |
| } |
| } |
| |
| static RegisterInfoArray *canfd_create_regarray(XlnxVersalCANFDState *s) |
| { |
| const char *device_prefix = object_get_typename(OBJECT(s)); |
| uint64_t memory_size = XLNX_VERSAL_CANFD_R_MAX * 4; |
| int num_regs; |
| int pos = 0; |
| RegisterInfoArray *r_array; |
| |
| num_regs = ARRAY_SIZE(canfd_regs_info) + |
| s->cfg.tx_fifo * NUM_REGS_PER_MSG_SPACE + |
| s->cfg.rx0_fifo * NUM_REGS_PER_MSG_SPACE + |
| NUM_AF * NUM_REG_PER_AF + |
| NUM_TXE * NUM_REG_PER_TXE; |
| |
| s->tx_regs = g_new0(RegisterAccessInfo, |
| s->cfg.tx_fifo * ARRAY_SIZE(canfd_tx_regs)); |
| |
| canfd_create_rai(s->tx_regs, canfd_tx_regs, |
| ARRAY_SIZE(canfd_tx_regs), s->cfg.tx_fifo); |
| |
| s->rx0_regs = g_new0(RegisterAccessInfo, |
| s->cfg.rx0_fifo * ARRAY_SIZE(canfd_rx0_regs)); |
| |
| canfd_create_rai(s->rx0_regs, canfd_rx0_regs, |
| ARRAY_SIZE(canfd_rx0_regs), s->cfg.rx0_fifo); |
| |
| s->af_regs = g_new0(RegisterAccessInfo, |
| NUM_AF * ARRAY_SIZE(canfd_af_regs)); |
| |
| canfd_create_rai(s->af_regs, canfd_af_regs, |
| ARRAY_SIZE(canfd_af_regs), NUM_AF); |
| |
| s->txe_regs = g_new0(RegisterAccessInfo, |
| NUM_TXE * ARRAY_SIZE(canfd_txe_regs)); |
| |
| canfd_create_rai(s->txe_regs, canfd_txe_regs, |
| ARRAY_SIZE(canfd_txe_regs), NUM_TXE); |
| |
| if (s->cfg.enable_rx_fifo1) { |
| num_regs += s->cfg.rx1_fifo * NUM_REGS_PER_MSG_SPACE; |
| |
| s->rx1_regs = g_new0(RegisterAccessInfo, |
| s->cfg.rx1_fifo * ARRAY_SIZE(canfd_rx1_regs)); |
| |
| canfd_create_rai(s->rx1_regs, canfd_rx1_regs, |
| ARRAY_SIZE(canfd_rx1_regs), s->cfg.rx1_fifo); |
| } |
| |
| r_array = g_new0(RegisterInfoArray, 1); |
| r_array->r = g_new0(RegisterInfo * , num_regs); |
| r_array->num_elements = num_regs; |
| r_array->prefix = device_prefix; |
| |
| pos = canfd_populate_regarray(s, r_array, pos, |
| canfd_regs_info, |
| ARRAY_SIZE(canfd_regs_info)); |
| pos = canfd_populate_regarray(s, r_array, pos, |
| s->tx_regs, s->cfg.tx_fifo * |
| NUM_REGS_PER_MSG_SPACE); |
| pos = canfd_populate_regarray(s, r_array, pos, |
| s->rx0_regs, s->cfg.rx0_fifo * |
| NUM_REGS_PER_MSG_SPACE); |
| if (s->cfg.enable_rx_fifo1) { |
| pos = canfd_populate_regarray(s, r_array, pos, |
| s->rx1_regs, s->cfg.rx1_fifo * |
| NUM_REGS_PER_MSG_SPACE); |
| } |
| pos = canfd_populate_regarray(s, r_array, pos, |
| s->af_regs, NUM_AF * NUM_REG_PER_AF); |
| pos = canfd_populate_regarray(s, r_array, pos, |
| s->txe_regs, NUM_TXE * NUM_REG_PER_TXE); |
| |
| memory_region_init_io(&r_array->mem, OBJECT(s), &canfd_ops, r_array, |
| device_prefix, memory_size); |
| return r_array; |
| } |
| |
| static void canfd_realize(DeviceState *dev, Error **errp) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(dev); |
| RegisterInfoArray *reg_array; |
| |
| reg_array = canfd_create_regarray(s); |
| memory_region_add_subregion(&s->iomem, 0x00, ®_array->mem); |
| sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->iomem); |
| sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq_canfd_int); |
| |
| if (s->canfdbus) { |
| if (xlnx_canfd_connect_to_bus(s, s->canfdbus) < 0) { |
| g_autofree char *path = object_get_canonical_path(OBJECT(s)); |
| |
| error_setg(errp, "%s: xlnx_canfd_connect_to_bus failed", path); |
| return; |
| } |
| |
| } |
| |
| /* Allocate a new timer. */ |
| s->canfd_timer = ptimer_init(xlnx_versal_canfd_ptimer_cb, s, |
| PTIMER_POLICY_WRAP_AFTER_ONE_PERIOD | |
| PTIMER_POLICY_TRIGGER_ONLY_ON_DECREMENT | |
| PTIMER_POLICY_NO_IMMEDIATE_RELOAD); |
| |
| ptimer_transaction_begin(s->canfd_timer); |
| |
| ptimer_set_freq(s->canfd_timer, s->cfg.ext_clk_freq); |
| ptimer_set_limit(s->canfd_timer, CANFD_TIMER_MAX, 1); |
| ptimer_run(s->canfd_timer, 0); |
| ptimer_transaction_commit(s->canfd_timer); |
| } |
| |
| static void canfd_init(Object *obj) |
| { |
| XlnxVersalCANFDState *s = XILINX_CANFD(obj); |
| |
| memory_region_init(&s->iomem, obj, TYPE_XILINX_CANFD, |
| XLNX_VERSAL_CANFD_R_MAX * 4); |
| } |
| |
| static const VMStateDescription vmstate_canfd = { |
| .name = TYPE_XILINX_CANFD, |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .fields = (const VMStateField[]) { |
| VMSTATE_UINT32_ARRAY(regs, XlnxVersalCANFDState, |
| XLNX_VERSAL_CANFD_R_MAX), |
| VMSTATE_PTIMER(canfd_timer, XlnxVersalCANFDState), |
| VMSTATE_END_OF_LIST(), |
| } |
| }; |
| |
| static Property canfd_core_properties[] = { |
| DEFINE_PROP_UINT8("rx-fifo0", XlnxVersalCANFDState, cfg.rx0_fifo, 0x40), |
| DEFINE_PROP_UINT8("rx-fifo1", XlnxVersalCANFDState, cfg.rx1_fifo, 0x40), |
| DEFINE_PROP_UINT8("tx-fifo", XlnxVersalCANFDState, cfg.tx_fifo, 0x20), |
| DEFINE_PROP_BOOL("enable-rx-fifo1", XlnxVersalCANFDState, |
| cfg.enable_rx_fifo1, true), |
| DEFINE_PROP_UINT32("ext_clk_freq", XlnxVersalCANFDState, cfg.ext_clk_freq, |
| CANFD_DEFAULT_CLOCK), |
| DEFINE_PROP_LINK("canfdbus", XlnxVersalCANFDState, canfdbus, TYPE_CAN_BUS, |
| CanBusState *), |
| DEFINE_PROP_END_OF_LIST(), |
| }; |
| |
| static void canfd_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| |
| dc->reset = canfd_reset; |
| dc->realize = canfd_realize; |
| device_class_set_props(dc, canfd_core_properties); |
| dc->vmsd = &vmstate_canfd; |
| } |
| |
| static const TypeInfo canfd_info = { |
| .name = TYPE_XILINX_CANFD, |
| .parent = TYPE_SYS_BUS_DEVICE, |
| .instance_size = sizeof(XlnxVersalCANFDState), |
| .class_init = canfd_class_init, |
| .instance_init = canfd_init, |
| }; |
| |
| static void canfd_register_types(void) |
| { |
| type_register_static(&canfd_info); |
| } |
| |
| type_init(canfd_register_types) |
