can_cbs_tx_system_values.c

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/**
 * @file    can_cbs_tx_system_values.c
 * @author  foxBMS Team
 * @date    2021-07-21 (date of creation)
 * @updated 2021-07-21 (date of last update)
 * @ingroup DRIVER
 * @prefix  CAN
 *
 * @brief   CAN driver Tx callback implementation
 * @details CAN Tx callback for pack value and string value messages
 */
 
/*========== Includes =======================================================*/
#include "can_cbs.h"
#include "can_helper.h"
 
/*========== Macros and Definitions =========================================*/
 
/*========== Static Constant and Variable Definitions =======================*/
 
/*========== Extern Constant and Variable Definitions =======================*/
 
/*========== Static Function Prototypes =====================================*/
 
/*========== Static Function Implementations ================================*/
 
/*========== Extern Function Implementations ================================*/
extern uint32_t CAN_TxPackValues(
    uint32_t id,
    uint8_t dlc,
    CAN_ENDIANNESS_e endianness,
    uint8_t *pCanData,
    uint8_t *pMuxId,
    const CAN_SHIM_s *const kpkCanShim) {
    /* pMuxId is not used here, therefore has to be NULL_PTR */
    FAS_ASSERT(pMuxId == NULL_PTR);
 
    FAS_ASSERT(id < CAN_MAX_11BIT_ID); /* Currently standard ID, 11 bit */
    FAS_ASSERT(dlc <= CAN_MAX_DLC);    /* Currently max 8 bytes in a CAN frame */
    FAS_ASSERT(pCanData != NULL_PTR);
    FAS_ASSERT(kpkCanShim != NULL_PTR);
    uint64_t message = 0;
 
    /* Read database entry */
    DATA_READ_DATA(kpkCanShim->pTablePackValues);
 
    /* AXIVION Disable Style Generic-NoMagicNumbers: Signal data defined in .dbc file. */
    /* Battery voltage */
    float signalData = kpkCanShim->pTablePackValues->batteryVoltage_mV;
    float offset     = 0.0f;
    float factor     = 0.01f; /* convert mV -> 100mV */
    signalData       = (signalData + offset) * factor;
    uint64_t data    = (uint64_t)signalData;
    /* set data in CAN frame */
    CAN_TxSetMessageDataWithSignalData(&message, 7u, 14u, data, endianness);
 
    /* System voltage */
    signalData = kpkCanShim->pTablePackValues->highVoltageBusVoltage_mV;
    offset     = 0.0f;
    factor     = 0.01f; /* convert mV -> 100mV */
    signalData = (signalData + offset) * factor;
    data       = (uint64_t)signalData;
    /* set data in CAN frame */
    CAN_TxSetMessageDataWithSignalData(&message, 9u, 14u, data, endianness);
 
    /* System current */
    signalData = kpkCanShim->pTablePackValues->packCurrent_mA;
    offset     = 0.0f;
    factor     = 0.1f; /* convert mA -> 10mA */
    signalData = (signalData + offset) * factor;
    data       = (int64_t)signalData;
    /* set data in CAN frame */
    CAN_TxSetMessageDataWithSignalData(&message, 41u, 18u, data, endianness);
 
    /* System power */
    signalData = kpkCanShim->pTablePackValues->packPower_W;
    offset     = 0.0f;
    factor     = 0.1f; /* convert W -> 10W */
    signalData = (signalData + offset) * factor;
    data       = (int64_t)signalData;
    /* set data in CAN frame */
    CAN_TxSetMessageDataWithSignalData(&message, 27u, 18u, data, endianness);
    /* AXIVION Enable Style Generic-NoMagicNumbers: */
 
    /* now copy data in the buffer that will be used to send data */
    CAN_TxSetCanDataWithMessageData(message, pCanData, endianness);
 
    return 0;
}
 
extern uint32_t CAN_TxStringValues(
    uint32_t id,
    uint8_t dlc,
    CAN_ENDIANNESS_e endianness,
    uint8_t *pCanData,
    uint8_t *pMuxId,
    const CAN_SHIM_s *const kpkCanShim) {
    FAS_ASSERT(id < CAN_MAX_11BIT_ID); /* Currently standard ID, 11 bit */
    FAS_ASSERT(dlc <= CAN_MAX_DLC);    /* Currently max 8 bytes in a CAN frame */
    FAS_ASSERT(pCanData != NULL_PTR);
    FAS_ASSERT(pMuxId != NULL_PTR);
    FAS_ASSERT(*pMuxId < BS_NR_OF_STRINGS);
    FAS_ASSERT(kpkCanShim != NULL_PTR);
    uint64_t message = 0;
    uint64_t data    = 0;
    float signalData = 0.0f;
    float offset     = 0.0f;
    float factor     = 0.0f;
 
    const uint8_t stringNumber = *pMuxId;
 
    /* First signal to transmit cell voltages: get database values */
    if (stringNumber == 0u) {
        /* Do not read pTableMsl and pTableErrorState as they already are read
         * with a higher frequency from CAN_TxState callback */
        DATA_READ_DATA(kpkCanShim->pTablePackValues);
    }
 
    /* mux value */
    data = (uint64_t)stringNumber;
    /* set data in CAN frame */
    /* AXIVION Disable Style Generic-NoMagicNumbers: Signal data defined in .dbc file. */
    CAN_TxSetMessageDataWithSignalData(&message, 7u, 3u, data, endianness);
 
    /* String voltage */
    signalData = (float)kpkCanShim->pTablePackValues->stringVoltage_mV[stringNumber];
    offset     = 0.0f;
    factor     = 0.1f; /* convert mV to 10mV */
    signalData = (signalData + offset) * factor;
    data       = (int64_t)signalData;
    /* set data in CAN frame */
    CAN_TxSetMessageDataWithSignalData(&message, 4u, 17u, data, endianness);
 
    /* String current */
    signalData = (float)kpkCanShim->pTablePackValues->stringCurrent_mA[stringNumber];
    offset     = 0.0f;
    factor     = 0.1f; /* convert mA to 10mA */
    signalData = (signalData + offset) * factor;
    data       = (int64_t)signalData;
    /* set data in CAN frame */
    CAN_TxSetMessageDataWithSignalData(&message, 19u, 18u, data, endianness);
 
    /* String power */
    signalData = (float)kpkCanShim->pTablePackValues->stringPower_W[stringNumber];
    offset     = 0.0f;
    factor     = 0.1f; /* convert W to 10W */
    signalData = (signalData + offset) * factor;
    data       = (int64_t)signalData;
    /* set data in CAN frame */
    CAN_TxSetMessageDataWithSignalData(&message, 33u, 18u, data, endianness);
    /* AXIVION Enable Style Generic-NoMagicNumbers: */
 
    /* now copy data in the buffer that will be used to send data */
    CAN_TxSetCanDataWithMessageData(message, pCanData, endianness);
 
    /* Increment multiplexer for next cell */
    (*pMuxId)++;
 
    /* Check mux value */
    if (*pMuxId >= BS_NR_OF_STRINGS) {
        *pMuxId = 0u;
    }
 
    return 0;
}
 
extern uint32_t CAN_TxStringValues2(
    uint32_t id,
    uint8_t dlc,
    CAN_ENDIANNESS_e endianness,
    uint8_t *pCanData,
    uint8_t *pMuxId,
    const CAN_SHIM_s *const kpkCanShim) {
    FAS_ASSERT(id < CAN_MAX_11BIT_ID); /* Currently standard ID, 11 bit */
    FAS_ASSERT(dlc <= CAN_MAX_DLC);    /* Currently max 8 bytes in a CAN frame */
    FAS_ASSERT(pCanData != NULL_PTR);
    FAS_ASSERT(pMuxId != NULL_PTR);
    FAS_ASSERT(*pMuxId < BS_NR_OF_STRINGS);
    FAS_ASSERT(kpkCanShim != NULL_PTR);
    uint64_t message    = 0u;
    uint64_t signalData = 0u;
 
    const uint8_t stringNumber = *pMuxId;
 
    /* First signal to transmit cell voltages: get database values */
    if (stringNumber == 0u) {
        /* Do not read pTableMsl and pTableErrorState as they already are read
         * with a higher frequency from CAN_TxState callback */
        DATA_READ_DATA(kpkCanShim->pTableCurrentSensor);
    }
 
    /* mux value */
    signalData = (uint64_t)stringNumber;
    /* set data in CAN frame */
    /* AXIVION Disable Style Generic-NoMagicNumbers: Signal data defined in .dbc file. */
    CAN_TxSetMessageDataWithSignalData(&message, 7u, 4u, signalData, endianness);
 
    /* String voltage */
    OS_EnterTaskCritical(); /* this access has to be protected as it conflicts with the 1ms task */
    signalData = (int64_t)kpkCanShim->pTableCurrentSensor->energyCounter_Wh[stringNumber];
    OS_ExitTaskCritical();
    /* set data in CAN frame */
    CAN_TxSetMessageDataWithSignalData(&message, 15u, 32u, signalData, endianness);
    /* AXIVION Enable Style Generic-NoMagicNumbers: */
 
    /* now copy data in the buffer that will be used to send data */
    CAN_TxSetCanDataWithMessageData(message, pCanData, endianness);
 
    /* Increment multiplexer for next cell */
    (*pMuxId)++;
 
    /* Check mux value */
    if (*pMuxId >= BS_NR_OF_STRINGS) {
        *pMuxId = 0u;
    }
 
    return 0;
}
 
/*========== Externalized Static Function Implementations (Unit Test) =======*/
#ifdef UNITY_UNIT_TEST
 
#endif