mxm_registry.c

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/**
 * @file    mxm_registry.c
 * @author  foxBMS Team
 * @date    2020-07-16 (date of creation)
 * @updated 2020-07-16 (date of last update)
 * @ingroup DRIVERS
 * @prefix  MXM
 *
 * @brief   Functions in order to have a registry of monitoring ICs
 *
 * @details Monitoring registry stores information about the connected ICs.
 *
 */
 
/*========== Includes =======================================================*/
#include "mxm_registry.h"
 
/*========== Macros and Definitions =========================================*/
 
/*========== Static Constant and Variable Definitions =======================*/
 
/*========== Extern Constant and Variable Definitions =======================*/
 
/*========== Static Function Prototypes =====================================*/
 
/*========== Static Function Implementations ================================*/
 
/*========== Extern Function Implementations ================================*/
extern void MXM_MonRegistryInit(MXM_MONITORING_INSTANCE_s *pState) {
    FAS_ASSERT(pState != NULL_PTR);
    for (uint8_t i = 0; i < MXM_MAXIMUM_NR_OF_MODULES; i++) {
        MXM_REGISTRY_ENTRY_s *entry = &pState->registry[i];
        entry->connected            = false;
        entry->deviceAddress        = 0u;
        entry->deviceID             = 0u;
        entry->model                = MXM_MODEL_ID_NONE;
        entry->siliconVersion       = MXM_siliconVersion_0;
    }
    return;
}
 
extern STD_RETURN_TYPE_e MXM_MonRegistryConnectDevices(MXM_MONITORING_INSTANCE_s *pState, uint8_t numberOfDevices) {
    FAS_ASSERT(pState != NULL_PTR);
    STD_RETURN_TYPE_e retval = STD_OK;
    if (numberOfDevices > MXM_MAXIMUM_NR_OF_MODULES) {
        retval = STD_NOT_OK;
    } else {
        for (uint8_t i = 0; i < numberOfDevices; i++) {
            pState->registry[i].connected     = true;
            pState->registry[i].deviceAddress = HELLOALL_START_SEED + i;
            pState->highest5xDevice           = HELLOALL_START_SEED + i;
        }
    }
 
    return retval;
}
 
extern uint8_t MXM_MonRegistryGetHighestConnected5XDevice(MXM_MONITORING_INSTANCE_s *pState) {
    FAS_ASSERT(pState != NULL_PTR);
    /* return highest connected device */
    return pState->highest5xDevice;
}
 
extern void MXM_MonRegistryParseIdIntoDevices(
    MXM_MONITORING_INSTANCE_s *pState,
    uint8_t rxBufferLength,
    MXM_REG_NAME_e type) {
    FAS_ASSERT(pState != NULL_PTR);
    /* only ID1 or ID2 are valid */
    FAS_ASSERT((type == MXM_REG_ID1) || (type == MXM_REG_ID2));
 
    /* find highest connected device */
    uint8_t highestConnectedDevice = MXM_MonRegistryGetHighestConnected5XDevice(pState);
 
    const uint8_t startBytes = 2u;
 
    for (uint8_t i = 0; i <= highestConnectedDevice; i++) {
        uint8_t bufferPosition              = startBytes + (i * 2u);
        MXM_REGISTRY_ENTRY_s *currentDevice = &pState->registry[highestConnectedDevice - i];
        FAS_ASSERT((bufferPosition + 1u) <= rxBufferLength);
        uint16_t id = 0;
        MXM_ExtractValueFromRegister(
            pState->rxBuffer[bufferPosition], pState->rxBuffer[bufferPosition + 1u], MXM_BM_WHOLE_REG, &id);
        if (type == MXM_REG_ID1) {
            currentDevice->deviceID = id;
        } else {
            /* (type == MXM_REG_ID2) */
            currentDevice->deviceID = ((uint32_t)id << 16u) | currentDevice->deviceID;
        }
    }
}
 
extern void MXM_MonRegistryParseVersionIntoDevices(MXM_MONITORING_INSTANCE_s *pState, uint8_t rxBufferLength) {
    FAS_ASSERT(pState != NULL_PTR);
 
    /* find highest connected device */
    uint8_t highestConnectedDevice = MXM_MonRegistryGetHighestConnected5XDevice(pState);
 
    const uint8_t startBytes = 2u;
 
    for (uint8_t i = 0; i <= highestConnectedDevice; i++) {
        uint8_t bufferPosition              = startBytes + (i * 2u);
        MXM_REGISTRY_ENTRY_s *currentDevice = &pState->registry[highestConnectedDevice - i];
        FAS_ASSERT((bufferPosition + 1u) <= rxBufferLength);
        uint16_t model = 0;
        MXM_ExtractValueFromRegister(
            pState->rxBuffer[bufferPosition], pState->rxBuffer[bufferPosition + 1u], MXM_REG_VERSION_MOD, &model);
        currentDevice->model = (MXM_MODEL_ID_e)model;
 
        uint16_t version = 0;
        MXM_ExtractValueFromRegister(
            pState->rxBuffer[bufferPosition], pState->rxBuffer[bufferPosition + 1u], MXM_REG_VERSION_VER, &version);
        currentDevice->siliconVersion = (MXM_siliconVersion_e)version;
    }
}
 
/*========== Externalized Static Function Implementations (Unit Test) =======*/