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/*
* Copyright (c) 2006-2026, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-08-05 Xeon Xu the first version
* 2019-01-22 YLZ port from stm324xx-HAL to bsp stm3210x-HAL
* 2019-01-26 YLZ redefine `struct stm32_drv_can` add member `Rx1Message`
* 2019-02-19 YLZ port to BSP [stm32]
* 2019-06-17 YLZ modify struct stm32_drv_can.
*/
#ifndef __DRV_CAN_H__
#define __DRV_CAN_H__
#ifdef __cplusplus
extern "C" {
#endif
#include <board.h>
#include <rtdevice.h>
#define CAN_FILTER_NUM_MAX (16U)
#define NS800RT7_CAN_RX_MB_COUNT (2U)
#define NS800RT7_CAN_TX_MB_COUNT (1U)
#define NS800RT7_CAN_TOTAL_MB_COUNT (NS800RT7_CAN_TX_MB_COUNT + NS800RT7_CAN_RX_MB_COUNT)
enum _can_state
{
StateIdle = 0x0, /*!< MB idle.*/
StateRxData = 0x1, /*!< MB receiving.*/
StateRxRemote = 0x2, /*!< MB receiving remote reply.*/
StateTxData = 0x3, /*!< MB transmitting.*/
StateTxRemote = 0x4, /*!< MB transmitting remote request.*/
};
struct ns800rt7_baud_rate_tab
{
rt_uint32_t baud_rate;
rt_uint32_t config_data;
};
#define BAUD_DATA(NO) (can_baud_rate_tab[NO].config_data)
typedef enum
{
NS800RT7_CAN_INSTANCE_CAN1 = 0U,
NS800RT7_CAN_INSTANCE_CANFD1,
NS800RT7_CAN_INSTANCE_CANFD2,
} ns800rt7_can_instance;
typedef struct
{
GPIO_TypeDef *port;
GPIO_PinNum pin;
GPIO_AltFunc alt_func;
} ns800rt7_can_pin;
typedef void (*ns800rt7_can_irq_handler)(void);
typedef struct
{
const char *name;
ns800rt7_can_instance instance;
FLEXCANDRV_ControllerCfgType CanCfg;
IRQn_Type irqn1;
IRQn_Type irqn2;
ns800rt7_can_irq_handler irq_handler;
ns800rt7_can_irq_handler err_irq_handler;
FLEXCANDRV_Type CanHandle;
ns800rt7_can_pin tx_pin;
ns800rt7_can_pin rx_pin;
rt_uint8_t can_instance_idx;
rt_uint8_t can_ram_num;
rt_bool_t fd_capable;
rt_uint32_t clock_freq;
FLEXCANDRV_MsgCfgType FilterConfig[CAN_FILTER_NUM_MAX];
FLEXCANDRV_MsgObjType rx_frame[NS800RT7_CAN_RX_MB_COUNT];
uint8_t FilterNum;
volatile uint8_t mbState[128];
struct rt_can_device device; /* inherit from can device */
} ns800rt7_can;
int rt_hw_can_init(void);
#ifdef __cplusplus
}
#endif
#endif /*__DRV_CAN_H__ */
/************************** end of file ******************/
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