mcan.h

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/*                  Atmel Microcontroller Software Support                      */
/*                       SAM Software Package License                           */
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/* Copyright (c) 2015, Atmel Corporation                                        */
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#ifndef _MCAN_
#define _MCAN_
 
/*------------------------------------------------------------------------------
 *         Headers
 *------------------------------------------------------------------------------*/
 
#include "chip.h"
 
#include <stdint.h>
 
/*------------------------------------------------------------------------------
 *         Global functions
 *------------------------------------------------------------------------------*/
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef enum {
    CAN_STD_ID = 0,
    CAN_EXT_ID = 1
} MCan_IdType;
 
typedef enum {
    CAN_DLC_0 = 0,
    CAN_DLC_1 = 1,
    CAN_DLC_2 = 2,
    CAN_DLC_3 = 3,
    CAN_DLC_4 = 4,
    CAN_DLC_5 = 5,
    CAN_DLC_6 = 6,
    CAN_DLC_7 = 7,
    CAN_DLC_8 = 8,
    CAN_DLC_12 = 9,
    CAN_DLC_16 = 10,
    CAN_DLC_20 = 11,
    CAN_DLC_24 = 12,
    CAN_DLC_32 = 13,
    CAN_DLC_48 = 14,
    CAN_DLC_64 = 15
} MCan_DlcType;
 
typedef enum {
    CAN_FIFO_0 = 0,
    CAN_FIFO_1 = 1
} MCan_FifoType;
 
typedef enum {
    CAN_INTR_LINE_0 = 0,
    CAN_INTR_LINE_1 = 1
} MCan_IntrLineType;
 
typedef struct MailboxInfoTag {
    uint32_t   id;
    uint32_t   length;
    uint32_t   timestamp;
} MailboxInfoType;
 
 
typedef struct MailBox8Tag {
    MailboxInfoType info;
    uint8_t         data[8];
} Mailbox8Type;
 
typedef struct MailBox12Tag {
    MailboxInfoType info;
    uint8_t         data[12];
} Mailbox12Type;
 
typedef struct MailBox16Tag {
    MailboxInfoType info;
    uint8_t         data[16];
} Mailbox16Type;
 
typedef struct MailBox20Tag {
    MailboxInfoType info;
    uint8_t         data[20];
} Mailbox20Type;
 
typedef struct MailBox24Tag {
    MailboxInfoType info;
    uint8_t         data[24];
} Mailbox24Type;
 
typedef struct MailBox32Tag {
    MailboxInfoType info;
    uint8_t         data[32];
} Mailbox32ype;
 
typedef struct MailBox48Tag {
    MailboxInfoType info;
    uint8_t         data[48];
} Mailbox48Type;
 
typedef struct MailBox64Tag {
    MailboxInfoType info;
    uint8_t         data[64];
} Mailbox64Type;
 
 
 
typedef struct MCan_MsgRamPntrsTag {
    uint32_t *pStdFilts;
    uint32_t *pExtFilts;
    uint32_t *pRxFifo0;
    uint32_t *pRxFifo1;
    uint32_t *pRxDedBuf;
    uint32_t *pTxEvtFifo;
    uint32_t *pTxDedBuf;
    uint32_t *pTxFifoQ;
} MCan_MsgRamPntrs;
 
typedef struct MCan_ConfigTag {
    Mcan             *pMCan;
    uint32_t          bitTiming;
    uint32_t          fastBitTiming;
    uint32_t          nmbrStdFilts;
    uint32_t          nmbrExtFilts;
    uint32_t          nmbrFifo0Elmts;
    uint32_t          nmbrFifo1Elmts;
    uint32_t          nmbrRxDedBufElmts;
    uint32_t          nmbrTxEvtFifoElmts;
    uint32_t          nmbrTxDedBufElmts;
    uint32_t          nmbrTxFifoQElmts;
    uint32_t          rxFifo0ElmtSize;
    uint32_t          rxFifo1ElmtSize;
    uint32_t          rxBufElmtSize;
    // Element sizes and data sizes (encoded element size)
    uint32_t          txBufElmtSize;
    // Element size and data size (encoded element size)
    MCan_MsgRamPntrs  msgRam;
} MCan_ConfigType;
 
extern const MCan_ConfigType mcan0Config;
extern const MCan_ConfigType mcan1Config;
 
__STATIC_INLINE uint32_t MCAN_IsTxComplete(
    const MCan_ConfigType *mcanConfig)
{
    Mcan *mcan = mcanConfig->pMCan;
    return (mcan->MCAN_IR & MCAN_IR_TC);
}
 
__STATIC_INLINE void MCAN_ClearTxComplete(
    const MCan_ConfigType *mcanConfig)
{
    Mcan *mcan = mcanConfig->pMCan;
    mcan->MCAN_IR = MCAN_IR_TC;
}
 
__STATIC_INLINE uint32_t MCAN_IsMessageStoredToRxDedBuffer(
    const MCan_ConfigType *mcanConfig)
{
    Mcan *mcan = mcanConfig->pMCan;
 
    return (mcan->MCAN_IR & MCAN_IR_DRX);
}
 
__STATIC_INLINE void MCAN_ClearMessageStoredToRxBuffer(
    const MCan_ConfigType *mcanConfig)
{
    Mcan *mcan = mcanConfig->pMCan;
    mcan->MCAN_IR = MCAN_IR_DRX;
}
 
__STATIC_INLINE uint32_t MCAN_IsMessageStoredToRxFifo0(
    const MCan_ConfigType *mcanConfig)
{
    Mcan *mcan = mcanConfig->pMCan;
    return (mcan->MCAN_IR & MCAN_IR_RF0N);
}
 
__STATIC_INLINE void MCAN_ClearMessageStoredToRxFifo0(
    const MCan_ConfigType *mcanConfig)
{
    Mcan *mcan = mcanConfig->pMCan;
    mcan->MCAN_IR = MCAN_IR_RF0N;
}
 
__STATIC_INLINE uint32_t MCAN_IsMessageStoredToRxFifo1(
    const MCan_ConfigType *mcanConfig)
{
    Mcan *mcan = mcanConfig->pMCan;
    return (mcan->MCAN_IR & MCAN_IR_RF1N);
}
 
__STATIC_INLINE void MCAN_ClearMessageStoredToRxFifo1(
    const MCan_ConfigType *mcanConfig)
{
    Mcan *mcan = mcanConfig->pMCan;
    mcan->MCAN_IR = MCAN_IR_RF1N;
}
 
void MCAN_Init(
    const MCan_ConfigType *mcanConfig);
 
void MCAN_InitFdEnable(
    const MCan_ConfigType *mcanConfig);
 
void MCAN_InitFdBitRateSwitchEnable(
    const MCan_ConfigType *mcanConfig);
 
void MCAN_InitTxQueue(
    const MCan_ConfigType *mcanConfig);
 
void MCAN_InitLoopback(
    const MCan_ConfigType *mcanConfig);
 
void MCAN_Enable(
    const MCan_ConfigType *mcanConfig);
 
void MCAN_RequestIso11898_1(
    const MCan_ConfigType *mcanConfig);
 
void MCAN_RequestFd(
    const MCan_ConfigType *mcanConfig);
 
void MCAN_RequestFdBitRateSwitch(
    const MCan_ConfigType *mcanConfig);
 
void MCAN_LoopbackOn(
    const MCan_ConfigType *mcanConfig);
 
void MCAN_LoopbackOff(
    const MCan_ConfigType *mcanConfig);
 
void MCAN_IEnableMessageStoredToRxDedBuffer(
    const MCan_ConfigType *mcanConfig,
    MCan_IntrLineType line);
 
uint8_t   *MCAN_ConfigTxDedBuffer(
    const MCan_ConfigType *mcanConfig,
    uint8_t buffer,
    uint32_t id,
    MCan_IdType idType,
    MCan_DlcType dlc);
 
void MCAN_SendTxDedBuffer(
    const MCan_ConfigType *mcanConfig,
    uint8_t buffer);
 
uint32_t MCAN_AddToTxFifoQ(
    const MCan_ConfigType *mcanConfig,
    uint32_t id, MCan_IdType idType,
    MCan_DlcType dlc, uint8_t *data);
 
uint8_t MCAN_IsBufferTxd(
    const MCan_ConfigType *mcanConfig,
    uint8_t buffer);
 
void MCAN_ConfigRxBufferFilter(
    const MCan_ConfigType *mcanConfig,
    uint32_t buffer,
    uint32_t filter,
    uint32_t id,
    MCan_IdType idType);
 
void MCAN_ConfigRxClassicFilter(
    const MCan_ConfigType *mcanConfig,
    MCan_FifoType fifo,
    uint8_t filter,
    uint32_t id,
    MCan_IdType idType,
    uint32_t mask);
 
uint8_t MCAN_IsNewDataInRxDedBuffer(
    const MCan_ConfigType *mcanConfig,
    uint8_t buffer);
 
void MCAN_GetRxDedBuffer(
    const MCan_ConfigType *mcanConfig,
    uint8_t buffer,
    Mailbox64Type *pRxMailbox);
 
uint32_t MCAN_GetRxFifoBuffer(
    const MCan_ConfigType *mcanConfig,
    MCan_FifoType fifo,
    Mailbox64Type *pRxMailbox);
 
#ifdef __cplusplus
}
#endif
 
#endif /* #ifndef _MCAN_ */