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110 lines
2.9 KiB
110 lines
2.9 KiB
5 months ago
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/*
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* Copyright (c) 2006-2025, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2025-11-07 RealThread the first version
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*/
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#ifndef __DRV_CAN_H__
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#define __DRV_CAN_H__
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#include <rtdevice.h>
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#include <rtthread.h>
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#include <board.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef RT_USING_CAN
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/* Aliases for __IRQn */
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#if defined(BSP_USING_CAN0) || defined(BSP_USING_CAN1) || defined(BSP_USING_CAN2)
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/* BSP_USING_CAN0 */
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#define CAN0_TX_IRQn CAN0_Message_IRQn
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#define CAN0_RX_IRQn CAN0_Message_IRQn
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#define CAN0_ERROR_IRQn CAN0_Error_IRQn
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/* BSP_USING_CAN1 */
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#define CAN1_TX_IRQn CAN1_Message_IRQn
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#define CAN1_RX_IRQn CAN1_Message_IRQn
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#define CAN1_ERROR_IRQn CAN1_Error_IRQn
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/* BSP_USING_CAN2 */
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#define CAN2_TX_IRQn CAN2_Message_IRQn
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#define CAN2_RX_IRQn CAN2_Message_IRQn
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#define CAN2_ERROR_IRQn CAN2_Error_IRQn
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#endif
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struct gd32_baud_rate_tab
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{
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uint32_t baud_rate;
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uint8_t resync_jump_width;
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uint8_t prop_time_segment;
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uint8_t time_segment_1;
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uint8_t time_segment_2;
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uint32_t prescaler;
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};
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#ifdef RT_CAN_USING_CANFD
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typedef struct
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{
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rt_uint32_t baud;
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rt_uint8_t sjw;
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rt_uint8_t prop;
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rt_uint8_t seg1;
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rt_uint8_t seg2;
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rt_uint16_t prescaler;
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} gd32_fd_data_baud_t;
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enum CANFD_BAUD
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{
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CANFD_5MBaud = 5000UL * 1000, /* 5 MBit/sec */
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CANFD_4MBaud = 4000UL * 1000, /* 4 MBit/sec */
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CANFD_3MBaud = 3000UL * 1000, /* 3 MBit/sec */
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CANFD_2MBaud = 2000UL * 1000, /* 2 MBit/sec */
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CANFD_1MBaud = 1000UL * 1000, /* 1 MBit/sec */
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CANFD_800kBaud = 1000UL * 800, /* 800 kBit/sec */
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CANFD_500kBaud = 1000UL * 500, /* 500 kBit/sec */
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CANFD_250kBaud = 1000UL * 250, /* 250 kBit/sec */
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CANFD_125kBaud = 1000UL * 125, /* 125 kBit/sec */
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CANFD_100kBaud = 1000UL * 100, /* 100 kBit/sec */
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CANFD_50kBaud = 1000UL * 50, /* 50 kBit/sec */
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CANFD_20kBaud = 1000UL * 20, /* 20 kBit/sec */
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CANFD_10kBaud = 1000UL * 10 /* 10 kBit/sec */
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};
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#endif
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/* gd32 can device */
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typedef struct
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{
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char *name;
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const char *tx_pin_name; /* can pin name */
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const char *rx_pin_name; /* rx pin name */
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const char *alternate;
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uint32_t can_periph;
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can_parameter_struct can_init;
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can_fifo_parameter_struct can_fifo;
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can_operation_modes_enum mode;
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can_mailbox_descriptor_struct tx_message[16];
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can_mailbox_descriptor_struct rx_message[16];
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rt_uint8_t rx_message_valid[16];
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void (*filter_cb)(uint32_t can_periph);
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#ifdef RT_CAN_USING_CANFD
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can_fd_parameter_struct can_fd_init;
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rt_uint8_t fd_enabled;
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rt_uint8_t fd_rx_buf[16][64];
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#endif
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struct rt_can_device *device; /* can device */
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} gd32_can_struct;
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void can_gpio_config(void);
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int rt_hw_can_init(void);
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#endif /* RT_USING_CAN */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __DRV_CAN_H__ */
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