FCAN 驱动程序

.
├── fcan_g.c
├── fcan_hw.c
├── fcan_hw.h
├── fcan_intr.c
├── fcan_sinit.c
├── fcan.c
└── fcan.h

typedef struct
{
    FCanConfig config;
    u32 is_ready;  /* Device is initialized and ready */
    boolean use_canfd; /* if use canfd function */
    
    FCanIntrEventConfig intr_event[FCAN_INTR_EVENT_NUM];/* event handler and parameters for interrupt */
} FCanCtrl;

typedef struct
{
    u32 instance_id;   /* Id of device */
    uintptr base_address; /* Can base Address */
    u32 irq_num;    /* interrupt number */
    u32 irq_prority;/* interrupt priority*/
}FCanConfig;

typedef struct
{
    FCanSegmentType segment;
    boolean auto_calc; /* if auto calculate baudrate parameters */
    u32 baudrate;     /* baudrate */
    u32 sample_point; /* sample point */
    u32 prop_seg;     /* Propagation segment in TQs */
    u32 phase_seg1;   /* Phase buffer segment 1 in TQs */
    u32 phase_seg2;   /* Phase buffer segment 2 in TQs */
    u32 sjw;          /* Synchronisation jump width in TQs */
    u32 brp;          /* Baudrate prescaler */
}FCanBaudrateConfig;

typedef struct
{
    u32 canid;
    u8 candlc;
    u8 flags; /* additional flags for CAN FD */
    u8 data[FCAN_DATA_LENGTH] __attribute__((aligned(8)));
}FCanFrame;

typedef enum
{
    FCAN_INTR_EVENT_SEND = 0,    /* Handler type for frame sending interrupt */
    FCAN_INTR_EVENT_RECV = 1,    /* Handler type for frame reception interrupt */
    FCAN_INTR_EVENT_ERROR,       /* Handler type for error interrupt */
    FCAN_INTR_EVENT_NUM
} FCanIntrEventType;

const FCanConfig *FCanLookupConfig(u32 instance_id);

FError FCanCfgInitialize(FCanCtrl *instance_p, const FCanConfig *input_config_p);

FError FCanSend(FCanCtrl *instance_p, FCanFrame *frame_p);

FError FCanRecv(FCanCtrl *instance_p, FCanFrame *frame_p);

void FCanRegisterInterruptHandler(FCanCtrl *instance_p, FCanIntrEventConfig *intr_event_p);

void FCanIntrHandler(s32 vector, void *args);

FError FCanIdMaskFilterSet(FCanCtrl *instance_p, FCanIdMaskConfig *id_mask_p);