File content as of revision 12:c06cd8b76358:

#include "ble/services/UARTService.h"
#include "akmsensormanager.h"
#include "akmhallswitch.h"
#include "akmanalogsensor.h"
#include "ak09970ctrl.h"
#include "ak9750ctrl.h"
#include "ak9752ctrl.h"
#include "ak7451ctrl.h"
#include "ak7401ctrl.h"
#include "akmakd.h"
#include "debug.h"
#include "Message.h"
#ifdef REV_D
#include "mcp342x.h"
#include "I2CNano.h"
#include "tca9554a.h"
#endif

#define CR                 '\r'
#define LF                 '\n'
#define FIRMWARE_VERSION   0x02
#define MAGNETOMETER_ID    0x0A

#define CONV16I(high,low)  ((int16_t)(((high) << 8) | (low)))


const char* AKM_PRIMARY_ID_STR[] = {
                                    "AKD Daughter Cards(SPI)",
                                    "Switch, Unipolar",
                                    "Switch, Onmipolar",
                                    "Latch, Bipolar",
                                    "Switch, Dual Output",
                                    "Onechip Encoder",
                                    "TBD1",
                                    "TBD2",
                                    "Linear Sensor Legacy",
                                    "Current Sensor",
                                    "MISC(Analog)",
                                    "Linear Sensor",
                                    "TBD3",
                                    "IR Sensor",
                                    "Angle Sensor(SPI)",
                                    "AKD Daughter Cards(I2C)"
                                     };
                                     
AkmSensorManager::AkmSensorManager(SerialNano* com, UARTService* service)
{
    serial = com;
    uartService = service;
    isEnabledBle = true;
    isEnabledUsb = true;
    eventCommandReceived = false;
    eventConnected = false;
    eventDisconnected = false;
}

AkmSensorManager::Status AkmSensorManager::init(uint8_t id, uint8_t subid)
{
    primaryId = id;
    subId = subid;
    sensor = AkmSensorManager::getAkmSensor();
    if(sensor == NULL) return AkmSensorManager::ERROR;  
    return AkmSensorManager::SUCCESS;
}

void AkmSensorManager::setEventConnected()
{
    eventConnected = true;
}

void AkmSensorManager::setEventDisconnected()
{
    eventDisconnected = true;
}

AkmSensor* AkmSensorManager::getAkmSensor()
{
    AkmSensor* sensor = NULL;
    
    switch(primaryId){
        case AkmSensor::AKM_PRIMARY_ID_AKD_SPI:
        case AkmSensor::AKM_PRIMARY_ID_AKD_I2C:
        {
            if(subId != Ak09970Ctrl::SUB_ID_AK09970){
                AkmAkd* akd = new AkmAkd();
                sensor = akd;
            }
            else{
                Ak09970Ctrl* ak09970 = new Ak09970Ctrl();
                sensor = ak09970;
            }
            break;
        }    
        case AkmSensor::AKM_PRIMARY_ID_ANGLE_SENSOR:
        {
            if(subId == Ak7451Ctrl::SUB_ID_AK7451){
                Ak7451Ctrl* ak7451ctrl = new Ak7451Ctrl();
                sensor = ak7451ctrl;
                break;
            }
            else if(subId == Ak7401Ctrl::SUB_ID_AK7401){
                Ak7401Ctrl* ak7401ctrl = new Ak7401Ctrl();
                sensor = ak7401ctrl;
                break;
            }
            break;
        }    
        case AkmSensor::AKM_PRIMARY_ID_UNIPOLAR:
        case AkmSensor::AKM_PRIMARY_ID_OMNIPOLAR:
        case AkmSensor::AKM_PRIMARY_ID_LATCH:
        case AkmSensor::AKM_PRIMARY_ID_DUAL_OUTPUT:
        case AkmSensor::AKM_PRIMARY_ID_ONECHIP_ENCODER:
        {
            AkmHallSwitch* hallswitch = new AkmHallSwitch();
            sensor = hallswitch;
            break;
        }
        case AkmSensor::AKM_PRIMARY_ID_LINEAR_SENSOR_LEGACY:
        case AkmSensor::AKM_PRIMARY_ID_LINEAR_SENSOR:
        case AkmSensor::AKM_PRIMARY_ID_CURRENT_SENSOR:
        case AkmSensor::AKM_PRIMARY_ID_MISC_ANALOG:
        {
            AkmAnalogSensor* analogsensor = new AkmAnalogSensor();
            sensor = analogsensor;
            break;
        }
        case AkmSensor::AKM_PRIMARY_ID_IR_SENSOR:
        {
            if(subId == Ak9750Ctrl::SUB_ID_AK9750){
                Ak9750Ctrl* ak9750ctrl = new Ak9750Ctrl();
                sensor = ak9750ctrl;
            }else if(subId == Ak9752Ctrl::SUB_ID_AK9752){
                Ak9752Ctrl* ak9752ctrl = new Ak9752Ctrl();
                sensor = ak9752ctrl;
            }else{
                return NULL;    // couldn't find
            }
            
            break;
        }
        default:
        {
            MSG("#Can't find ID=%d SubID=%d %s\r\n", primaryId, subId, AKM_PRIMARY_ID_STR[primaryId]);    
            return NULL;    // couldn't find
        }
    }

    if(sensor->init(primaryId, subId) != AkmSensor::SUCCESS){
        MSG("#sensor->init failed. ID=%d SubID=%d %s\r\n", primaryId, subId, AKM_PRIMARY_ID_STR[primaryId]);    
        return NULL;    // couldn't find
    }

    MSG("#ID=%d SubID=%d %s\r\n", primaryId, subId, AKM_PRIMARY_ID_STR[primaryId]);    
    return sensor;
}

AkmSensorManager::Status AkmSensorManager::commandReceived(char* buf){
    // Construct message
    Status status = SUCCESS;
    
    if ((Message::parse(&msg, buf)) != Message::SUCCESS) {
        MSG("#Failed to parse message. %s\r\n", buf);
        status = ERROR;
        eventCommandReceived = false;
    }
    eventCommandReceived = true;
    return status;
}

#ifdef REV_D
int16_t AkmSensorManager::getAdcData(MCP342X *mcp3428, MCP342X::AdcChannel ch, MCP342X::SampleSetting s) {
    const int WAIT_ADC_MS = 1;

    // Configure channel and trigger.
    mcp3428->setChannel(ch);
    mcp3428->setSampleSetting(s);
    mcp3428->trigger();

    // polling data (!blocking)
    MCP342X::Data data;
    do {
        wait_ms(WAIT_ADC_MS);
        mcp3428->getData(&data);
    } while(data.st == MCP342X::DATA_NOT_UPDATED);
    
    return data.value;
}
#endif

uint8_t AkmSensorManager::getId(PinName pin, uint8_t bits)
{
#ifndef REV_D
    /* Rev.C */
    AnalogIn id(pin);
    MSG("#Voltage=%5.2f[V]\r\n",id*3.0);
    double s = id + 1.0/(double)(pow(2.0,bits+1));
    uint8_t value = (uint8_t)(s*pow(2.0,bits));
#else
    /* Rev.D */
    MSG("#GetID\r\n");
    
    I2C i2c(I2C_SDA, I2C_SCL);
    // ADC
    MCP342X mcp342x(&i2c, MCP342X::SLAVE_ADDRESS_6EH);
    mcp342x.setConversionMode(MCP342X::ONE_SHOT);
    MCP342X::AdcChannel ch;
    if (pin == ANALOG_SENSOR_ID) {
        ch = MCP342X::ADC_CH1;
    } else { // pin == ANALOG_SENSOR_ID_SUB
        ch = MCP342X::ADC_CH2;
    }
    int16_t val = getAdcData(&mcp342x, ch, MCP342X::SAMPLE_240HZ_12BIT);
    MSG("#12bit ADC Val = %d.\r\n", val);
    
    const int16_t VAL_MAX = 3000-2048;   // Corresponds to 3V
    const int16_t VAL_MIN = -2048;       // Corresponds to 0V
    
    uint8_t value = (uint8_t)((val - VAL_MIN)/(float)(VAL_MAX - VAL_MIN) * (1 << bits) + 0.5);
    MSG("#ID = %d.\r\n", value);

#endif    
    return value;
}

bool AkmSensorManager::isEvent()
{
    return (sensor->isEvent() || 
            eventCommandReceived ||
            eventConnected ||
            eventDisconnected);
}


void AkmSensorManager::processCommand()
{
    AkmSensorManager::Status status = AkmSensorManager::SUCCESS;
    
    // Gets command in the message
    Message::Command cmd = msg.getCommand();
    
    // Creates an message object to return
    Message resMsg;
    
    // Return message has the same command as input
    resMsg.setCommand(cmd);
    
    switch(cmd)
    {
        case Message::CMD_GET_FW_VERSION:
        {
            resMsg.setArgument(0, FIRMWARE_VERSION);
            throwMessage(&resMsg);
            MSG("#FW version is reported.\r\n");
            break;
        }    
        case Message::CMD_GET_MAG_PART:
        {
            resMsg.setArgument(0, MAGNETOMETER_ID);
            throwMessage(&resMsg);
            MSG("#Mag ID is reported.\r\n");
            break;
        }
        case Message::CMD_SET_SERIAL_TARGET:
        {
            isEnabledBle = msg.getArgument(0)==Message::SW_ON ? true : false;
            isEnabledUsb = msg.getArgument(1)==Message::SW_ON ? true : false;
            break;
        }
        case Message::CMD_GET_ID:                       // return Primary ID and Sub ID
        {
            resMsg.setArgument(0, primaryId);
            resMsg.setArgument(1, subId);
            throwMessage(&resMsg);
            MSG("#Mag ID is reported.\r\n");
            break;
        }
        case Message::CMD_STOP_MEASUREMENT:
        {
            if( sensor->stopSensor() != AkmSensor::SUCCESS) status = AkmSensorManager::ERROR;
            resMsg.setArgument(0, status==AkmSensorManager::SUCCESS ? 0 : 1);
            throwMessage(&resMsg);
            MSG("#Stop measurement.\r\n");
            break;
        }
        case Message::CMD_START_MEASUREMENT:
        {
            int error_code = AkmSensor::SUCCESS;
            if(msg.getArgNum() == 0){
                error_code = sensor->startSensor();
                if( error_code != AkmSensor::SUCCESS ){
                    MSG("#StartSensor Error. Code=%d\r\n",error_code);            
                }
                else{
                    MSG("#Start measurement.\r\n");
                }
            }else if(msg.getArgNum() == 1){
                float interval = (float)(1.0 / (float)msg.getArgument(0));
                error_code = sensor->startSensor(interval);
                if( error_code != AkmSensor::SUCCESS ){
                    MSG("#StartSensor Error. Code=%d\r\n",error_code);            
                }
                else{
                    MSG("#Start measurement.\r\n");
                }
            }else{
                MSG("#StartSensor Error. Wrong Argument num.\r\n");            
            }
            if(error_code == AkmSensor::SUCCESS){
                // get initial sensor state for switch type sensors
                if( primaryId == AkmSensor::AKM_PRIMARY_ID_UNIPOLAR ||
                    primaryId == AkmSensor::AKM_PRIMARY_ID_OMNIPOLAR ||
                    primaryId == AkmSensor::AKM_PRIMARY_ID_LATCH ||
                    primaryId == AkmSensor::AKM_PRIMARY_ID_DUAL_OUTPUT ||
                    primaryId == AkmSensor::AKM_PRIMARY_ID_ONECHIP_ENCODER ){                
                    Message temp;
                    sensor->readSensorData(&temp);
                    throwMessage(&temp);
                }
            }
            break;
        }
        case Message::CMD_PROGSW_GET_THRESHOLD:
        case Message::CMD_PROGSW_SET_THRESHOLD:
        case Message::CMD_PROGSW_GET_READ_COFIGURATION:
        case Message::CMD_PROGSW_SET_READ_COFIGURATION:
        case Message::CMD_PROGSW_GET_SWITCH_COFIGURATION:
        case Message::CMD_PROGSW_SET_SWITCH_COFIGURATION:
        case Message::CMD_PROGSW_GET_OPERATION_MODE:
        case Message::CMD_PROGSW_SET_OPERATION_MODE:
        case Message::CMD_IR_GET_THRESHOLD:
        case Message::CMD_IR_SET_THRESHOLD:
        case Message::CMD_IR_GET_HYSTERESIS:
        case Message::CMD_IR_SET_HYSTERESIS:
        case Message::CMD_IR_GET_INTERRUPT:
        case Message::CMD_IR_SET_INTERRUPT:
        case Message::CMD_IR_GET_OPERATION_MODE:
        case Message::CMD_IR_SET_OPERATION_MODE:
        case Message::CMD_IR_GET_THRESHOLD_EEPROM:
        case Message::CMD_IR_SET_THRESHOLD_EEPROM:
        case Message::CMD_IR_GET_HYSTERESIS_EEPROM:
        case Message::CMD_IR_SET_HYSTERESIS_EEPROM:
        case Message::CMD_IR_GET_INTERRUPT_EEPROM:
        case Message::CMD_IR_SET_INTERRUPT_EEPROM:
        case Message::CMD_IR_GET_OPERATION_MODE_EEPROM:
        case Message::CMD_IR_SET_OPERATION_MODE_EEPROM:
        case Message::CMD_ANGLE_ZERO_RESET:
        case Message::CMD_REG_WRITE:
        case Message::CMD_REG_WRITEN:
        case Message::CMD_REG_READ:
        case Message::CMD_REG_READN:
        case Message::CMD_COMPASS_GET_OPERATION_MODE:
        case Message::CMD_COMPASS_SET_OPERATION_MODE:
        {
            sensor->requestCommand(&msg,&resMsg);
            throwMessage(&resMsg);
            break;
        }
        default:
        {
            MSG("#Can't find command:%s\r\n", (char)cmd);
            break;
        }
    }
}

AkmSensorManager::Status AkmSensorManager::processEvent()
{
    AkmSensorManager::Status status = AkmSensorManager::SUCCESS;
    
    // command received from the host
    if(eventCommandReceived)
    {
        processCommand();
        eventCommandReceived = false;
    }
    if(sensor->isEvent())  // sensor read data event
    {
        Message msg;
        if( sensor->readSensorData(&msg) != AkmSensor::SUCCESS) status = AkmSensorManager::ERROR;
        throwMessage(&msg);            
    }

    if(eventConnected)     // BLE connected. Start sensor.
    {
        eventConnected = false;   
        MSG("#BLE connected.\r\n");
    }
    if(eventDisconnected)  // BLE dis-connected. Stop sensor.
    {
        MSG("#BLE dis-connected.\r\n");
        if( sensor->stopSensor() != AkmSensor::SUCCESS) status = AkmSensorManager::ERROR;
        eventDisconnected = false;
    }
    return status;
}

AkmSensorManager::Status AkmSensorManager::throwMessage(const Message *msg) {
    int len = Message::getMaxMessageLength();
    char buf[len];
    
    buf[0] = '$';

    // Processes command
    char cmd = (char)msg->getCommand();
    Message::charToAscii(&buf[1], &cmd);
    
    // Processes arguments
    for (int i=0; i < msg->getArgNum(); i++) {
        char arg = msg->getArgument(i);
        Message::charToAscii(&buf[3+2*i], &arg);
    }

    // Add termination characters, 0x0D(\r), \n and \0, to the end of string
    int tIdx = 3 + 2 * (msg->getArgNum());
    int bufSize = sizeof(buf)/sizeof(buf[0]);
    if ((tIdx + 3) > (bufSize - 1)) {
        MSG("#Error: Message data exceeds the buffer.\r\n");
        return ERROR;
    }
    buf[tIdx++] = CR;        // '\r'
    buf[tIdx++] = LF;        // '\n' 
    buf[tIdx] = '\0';    
    if(isEnabledBle) uartService->writeString(buf);            
    if(isEnabledUsb) serial->printf(buf);
    
    return SUCCESS;   
}