88 lines
3.0 KiB
C
88 lines
3.0 KiB
C
|
/*
|
||
|
|
* QEMU model of the Xilinx Versal CANFD Controller.
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef HW_CANFD_XILINX_H
|
||
|
|
#define HW_CANFD_XILINX_H
|
||
|
|
|
||
|
|
#include "hw/register.h"
|
||
|
|
#include "hw/ptimer.h"
|
||
|
|
#include "net/can_emu.h"
|
||
|
|
#include "hw/qdev-clock.h"
|
||
|
|
|
||
|
|
#define TYPE_XILINX_CANFD "xlnx.versal-canfd"
|
||
|
|
|
||
|
|
OBJECT_DECLARE_SIMPLE_TYPE(XlnxVersalCANFDState, XILINX_CANFD)
|
||
|
|
|
||
|
|
#define NUM_REGS_PER_MSG_SPACE 18 /* 1 ID + 1 DLC + 16 Data(DW0 - DW15) regs. */
|
||
|
|
#define MAX_NUM_RX 64
|
||
|
|
#define OFFSET_RX1_DW15 (0x4144 / 4)
|
||
|
|
#define CANFD_TIMER_MAX 0xFFFFUL
|
||
|
|
#define CANFD_DEFAULT_CLOCK (25 * 1000 * 1000)
|
||
|
|
|
||
|
|
#define XLNX_VERSAL_CANFD_R_MAX (OFFSET_RX1_DW15 + \
|
||
|
|
((MAX_NUM_RX - 1) * NUM_REGS_PER_MSG_SPACE) + 1)
|
||
|
|
|
||
|
|
typedef struct XlnxVersalCANFDState {
|
||
|
|
SysBusDevice parent_obj;
|
||
|
|
MemoryRegion iomem;
|
||
|
|
|
||
|
|
qemu_irq irq_canfd_int;
|
||
|
|
qemu_irq irq_addr_err;
|
||
|
|
|
||
|
|
RegisterInfo reg_info[XLNX_VERSAL_CANFD_R_MAX];
|
||
|
|
RegisterAccessInfo *tx_regs;
|
||
|
|
RegisterAccessInfo *rx0_regs;
|
||
|
|
RegisterAccessInfo *rx1_regs;
|
||
|
|
RegisterAccessInfo *af_regs;
|
||
|
|
RegisterAccessInfo *txe_regs;
|
||
|
|
RegisterAccessInfo *rx_mailbox_regs;
|
||
|
|
RegisterAccessInfo *af_mask_regs_mailbox;
|
||
|
|
|
||
|
|
uint32_t regs[XLNX_VERSAL_CANFD_R_MAX];
|
||
|
|
|
||
|
|
ptimer_state *canfd_timer;
|
||
|
|
|
||
|
|
CanBusClientState bus_client;
|
||
|
|
CanBusState *canfdbus;
|
||
|
|
|
||
|
|
struct {
|
||
|
|
uint8_t rx0_fifo;
|
||
|
|
uint8_t rx1_fifo;
|
||
|
|
uint8_t tx_fifo;
|
||
|
|
bool enable_rx_fifo1;
|
||
|
|
uint32_t ext_clk_freq;
|
||
|
|
} cfg;
|
||
|
|
|
||
|
|
} XlnxVersalCANFDState;
|
||
|
|
|
||
|
|
typedef struct tx_ready_reg_info {
|
||
|
|
uint32_t can_id;
|
||
|
|
uint32_t reg_num;
|
||
|
|
} tx_ready_reg_info;
|
||
|
|
|
||
|
|
#endif
|