예제 #1
0
/*---------------------------------------------------------------------------*
 * Routine:  UEZPlatform_Speaker_Require
 *---------------------------------------------------------------------------*
 * Description:
 *      Setup the Speaker device driver
 *---------------------------------------------------------------------------*/
void UEZPlatform_Speaker_Require(void)
{
    const T_ToneGenerator_Generic_PWM_Settings settings = {
            "PWM_TPU0",
            1,
            GPIO_NONE,
            0,
            0,
    };
	T_uezDevice pwmDevice;
	
    DEVICE_CREATE_ONCE();

	UEZPlatform_PWM_TPU0_Require();
	UEZDeviceTableFind("PWM_TPU0", &pwmDevice);
	
	// The PWM Speaker is output by setting and clearing a GPIO pin
	// through software by using Callback routines.
	UEZGPIOClear(GPIO_P17);	// AUD_R
	UEZGPIOOutput(GPIO_P17);
	
	UEZGPIOClear(GPIO_PA0);	// AUD_L
	UEZGPIOOutput(GPIO_PA0);
	
	UEZGPIOSet(GPIO_PA2);	// AMP
	UEZGPIOOutput(GPIO_PA2);
	
	UEZPWMSetMatchCallback(pwmDevice, 0, UEZPlatform_SpeakerMasterCallback, 0);
	UEZPWMSetMatchCallback(pwmDevice, 1, UEZPlatform_SpeakerMatchCallback, 0);

    ToneGenerator_Generic_PWM_Create("Speaker", &settings);
}
예제 #2
0
/*---------------------------------------------------------------------------*
 * Routine:  Open
 *---------------------------------------------------------------------------*
 * Description:
 *     Initalizes pins for the audio amp 
 *     turns it on
 *     sets the level to the default
 * Inputs:
 *      void *aWorkSpace
 * Outputs:
 *      T_uezError                   -- Error code
 *---------------------------------------------------------------------------*/
T_uezError AudioAmp_8551T_Open(void *aWorkSpace)
{
    T_AudioAmp_8551T_Workspace *p = (T_AudioAmp_8551T_Workspace *)aWorkSpace;
    TUInt8 i, setLevel;

    UEZSemaphoreGrab(p->iSem, UEZ_TIMEOUT_INFINITE);

    p->iNumOpen++;

    if (!(p->iIsOn)) {
        setLevel = ((p->iLevel * (p->iMaxLevel - p->iMinLevel))/0xFF) + p->iMinLevel;
        p->iIsOn = ETrue;
        UEZGPIOOutput(p->iModeGPIO);
        UEZGPIOSetMux(p->iModeGPIO, 0); // set to GPIO
        UEZGPIOClear(p->iModeGPIO); // Turn on the amp
        UEZGPIOOutput(p->iVolumeGPIO);
        UEZGPIOSetMux(p->iVolumeGPIO, 0); // set to GPIO

        for (i = HIGH_LEVEL; i > 0; i--) {
            UEZGPIOClear(p->iVolumeGPIO); // set low to go down
            UEZGPIOOutput(p->iVolumeGPIO); // set to output
            if (p->iVolEnableGPIO != GPIO_NONE)
                UEZGPIOSet(p->iVolEnableGPIO);
            UEZTaskDelay(1);
            if (p->iVolEnableGPIO != GPIO_NONE)
                UEZGPIOClear(p->iVolEnableGPIO);
            UEZGPIOInput(p->iVolumeGPIO); // set to input
            UEZGPIOSetPull(p->iVolumeGPIO, GPIO_PULL_NONE);
            UEZTaskDelay(1);
        }

        for (i = LOW_LEVEL; i < setLevel; i++) {
            UEZGPIOSet(p->iVolumeGPIO); // set low to go down
            UEZGPIOOutput(p->iVolumeGPIO); // set to output
            if (p->iVolEnableGPIO != GPIO_NONE)
                UEZGPIOSet(p->iVolEnableGPIO);
            UEZTaskDelay(1);
            if (p->iVolEnableGPIO != GPIO_NONE)
                UEZGPIOClear(p->iVolEnableGPIO);
            UEZGPIOInput(p->iVolumeGPIO); // set to input
            UEZGPIOSetPull(p->iVolumeGPIO, GPIO_PULL_NONE);
            UEZTaskDelay(1);
        }
    }
    if (p->iVolEnableGPIO != GPIO_NONE)
        UEZGPIOClear(p->iVolEnableGPIO);

    UEZSemaphoreRelease(p->iSem);
    return UEZ_ERROR_NONE;
}
예제 #3
0
/*---------------------------------------------------------------------------*
 * Routine: SetLevel
 *---------------------------------------------------------------------------*
 * Description: 
 *      Set the gain of the audio amp to the desired level
 * Inputs:
 *      void *aWorkspace
 *      TUInt8 aLevel             --new level to set the amp to
 * Outputs:
 *      T_uezError                   -- Error code
 *---------------------------------------------------------------------------*/
T_uezError AudioAmp_8551T_SetLevel(void *aWorkSpace, TUInt8 aLevel)
{
    T_AudioAmp_8551T_Workspace *p = (T_AudioAmp_8551T_Workspace *)aWorkSpace;
    TUInt8 i, setLevel, oldLevel;

    UEZSemaphoreGrab(p->iSem, UEZ_TIMEOUT_INFINITE);

    oldLevel = ((((p->iLevel * 100) / (0xFF)) * (p->iMaxLevel - p->iMinLevel))/100) + p->iMinLevel;
    p->iLevel = aLevel;
    setLevel = ((p->iLevel * (p->iMaxLevel - p->iMinLevel))/0xFF) + p->iMinLevel;

    UEZGPIOSetMux(p->iVolumeGPIO, 0); // set to GPIO

    if (setLevel != oldLevel) {
        if (oldLevel < setLevel) {
            for (i = oldLevel; i < setLevel; i++) {
                UEZGPIOSet(p->iVolumeGPIO); //set High to go up
                UEZGPIOOutput(p->iVolumeGPIO); //set to output
                if (p->iVolEnableGPIO != GPIO_NONE)
                    UEZGPIOSet(p->iVolEnableGPIO);
                UEZTaskDelay(1);
                if (p->iVolEnableGPIO != GPIO_NONE)
                    UEZGPIOClear(p->iVolEnableGPIO);
                UEZGPIOInput(p->iVolumeGPIO);
                UEZGPIOClear(p->iVolumeGPIO);
                UEZGPIOSetPull(p->iVolumeGPIO, GPIO_PULL_NONE);
                UEZTaskDelay(1);
            }
        } else {
            for (i = oldLevel; i > setLevel; i--) {
                UEZGPIOClear(p->iVolumeGPIO); //set low to go down
                UEZGPIOOutput(p->iVolumeGPIO); //set to output
                if (p->iVolEnableGPIO != GPIO_NONE)
                    UEZGPIOSet(p->iVolEnableGPIO);
                UEZTaskDelay(1);
                if (p->iVolEnableGPIO != GPIO_NONE)
                    UEZGPIOClear(p->iVolEnableGPIO);
                UEZGPIOInput(p->iVolumeGPIO);
                UEZGPIOSetPull(p->iVolumeGPIO, GPIO_PULL_NONE);
                UEZTaskDelay(1);
            }
        }
        p->iLevel = aLevel;
    }

    if (p->iVolEnableGPIO != GPIO_NONE)
        UEZGPIOClear(p->iVolEnableGPIO);
    UEZSemaphoreRelease(p->iSem);
    return UEZ_ERROR_NONE;
}
예제 #4
0
/*---------------------------------------------------------------------------*
 * Routine:  UEZGUI_EXP_DK_FullDuplex_RS485_Require
 *---------------------------------------------------------------------------*
 * Description:
 *      Setup a full duplex RS485 connection.
 *---------------------------------------------------------------------------*/
void UEZGUI_EXP_DK_FullDuplex_RS485_Require(
    TUInt32 aWriteBufferSize,
    TUInt32 aReadBufferSize)
{
    // Need UART A without a stream
    UEZPlatform_ExpansionPrimary_UART_A_Require();

    // Ensure the drive enable pin is always HIGH
    if (GPIO_EXPDK_485DE != GPIO_NONE) {
        UEZGPIOSetMux(GPIO_EXPDK_485DE, 0);
        UEZGPIOSet(GPIO_EXPDK_485DE);
        UEZGPIOOutput(GPIO_EXPDK_485DE);
        UEZGPIOLock(GPIO_EXPDK_485DE);
    }

    // Ensure the receive enable pin is always low
    if (GPIO_EXPDK_485RE != GPIO_NONE) {
        // Drive enable pin must be LOW
        UEZGPIOSetMux(GPIO_EXPDK_485RE, 0);
        UEZGPIOClear(GPIO_EXPDK_485RE);
        UEZGPIOOutput(GPIO_EXPDK_485RE);
        UEZGPIOLock(GPIO_EXPDK_485RE);
    }

    Serial_Generic_FullDuplex_Stream_Create("EXP_RS485",
        PRIMARY_EXPANSION_UART_A, aWriteBufferSize, aReadBufferSize);
}
예제 #5
0
/*---------------------------------------------------------------------------*
 * Routine:  LCD_RH320240T_Open
 *---------------------------------------------------------------------------*
 * Description:
 *      Start the LCD screen.  If this is the first open, initialize the
 *      screen.
 * Inputs:
 *      void *aW                -- Workspace
 * Outputs:
 *      T_uezError               -- If the device is opened, returns
 *                                  UEZ_ERROR_NONE.
 *---------------------------------------------------------------------------*/
T_uezError LCD_RH320240T_Open(void *aW)
{
    T_RH320240TWorkspace *p = (T_RH320240TWorkspace *)aW;
    HAL_LCDController **plcdc;
    T_uezError error = UEZ_ERROR_NONE;

    p->aNumOpen++;
    if (p->aNumOpen == 1) {
        plcdc = p->iLCDController;

        // Choose a settings based on the configuration
        switch (p->iConfiguration->iColorDepth) {
            case UEZLCD_COLOR_DEPTH_8_BIT:
                LCD_RH320240T_settings = LCD_RH320240T_params8bit;
                break;
            default:
            case UEZLCD_COLOR_DEPTH_16_BIT:
                LCD_RH320240T_settings = LCD_RH320240T_params16bit;
                break;
            case UEZLCD_COLOR_DEPTH_I15_BIT:
                LCD_RH320240T_settings = LCD_RH320240T_paramsI15bit;
                break;
        }

        LCD_RH320240T_settings.iBaseAddress = p->iBaseAddress;

        // Turn on LCD controller and output power pin
        // Programs SPI first after power up
        error = (*plcdc)->Configure(plcdc, &LCD_RH320240T_settings);

// Testing
(*p->iLCDController)->On(p->iLCDController); // turns on data next

        UEZGPIOSetMux(p->iSHUTGPIOPin, 0);
        UEZGPIOSet(p->iSHUTGPIOPin);
        UEZGPIOOutput(p->iSHUTGPIOPin);

        // Drop SHUT down to be a low (active)
        UEZGPIOClear(p->iSHUTGPIOPin);

        // What does data enable pin do? high or low? It doesn't appear to be needed.
//      UEZGPIOSetMux(p->iENBGPIOPin, 0);
//      UEZGPIOClear(p->iENBGPIOPin);
//      UEZGPIOSet(p->iENBGPIOPin);
//      UEZGPIOOutput(p->iENBGPIOPin);

        // Configure SPI
        LCD_ConfigureSPI(p);

        return error;
    }

    return UEZ_ERROR_NONE;
}
예제 #6
0
/*---------------------------------------------------------------------------*
 * Routine:  uEZPlatformStartup
 *---------------------------------------------------------------------------*
 * Description:
 *      When uEZ starts, a special Startup task is created and called.
 *      This task brings up the all the hardware, reports any problems,
 *      starts the main task, and then exits.
 *---------------------------------------------------------------------------*/
TUInt32 uEZPlatformStartup(T_uezTask aMyTask, void *aParameters)
{
    extern T_uezTask G_mainTask;

    UEZPlatform_Standard_Require();
    SUIInitialize(SIMPLEUI_DOUBLE_SIZED_ICONS, EFalse, EFalse); // SWIM not flipped

    // USB Flash drive host mode needed?
#if USB_PORT_B_HOST_DETECT_ENABLED
    UEZGPIOLock(GPIO_P0_12);
    UEZGPIOSet(GPIO_P0_12); // disable MIC2025
    UEZGPIOOutput(GPIO_P0_12);
    UEZGPIOInput(GPIO_P0_28);
    UEZGPIOSetMux(GPIO_P0_28, 0);
    G_usbIsDevice = UEZGPIORead(GPIO_P0_28);
    if (G_usbIsDevice) {
        // High for a device
        UEZPlatform_USBDevice_Require();
    } else {
        // Low for a host
#if UEZ_ENABLE_USB_HOST_STACK
        UEZPlatform_USBFlash_Drive_Require(0);
#endif
        UEZGPIOClear(GPIO_P0_12); // enable MIC2025
    }
#else
    G_usbIsDevice = ETrue;
    // USB Device needed?
    UEZPlatform_USBDevice_Require();
#endif
    
#if UEZ_ENABLE_USB_HOST_STACK
    // USB Host is required
    UEZPlatform_USBFlash_Drive_Require(0);
#endif
    
    // SDCard needed?
    UEZPlatform_SDCard_Drive_Require(1);

    // Network needed?
#if UEZ_ENABLE_WIRED_NETWORK
    UEZPlatform_WiredNetwork0_Require();
#endif

    // Create a main task (not running yet)
    UEZTaskCreate((T_uezTaskFunction)MainTask, "Main", MAIN_TASK_STACK_SIZE, 0,
            UEZ_PRIORITY_NORMAL, &G_mainTask);

    // Done with this task, fall out
    return 0;
}
예제 #7
0
/*---------------------------------------------------------------------------*
 * Task:  Heartbeat
 *---------------------------------------------------------------------------*
 * Description:
 *      Blink heartbeat LED
 * Inputs:
 *      T_uezTask aMyTask            -- Handle to this task
 *      void *aParams               -- Parameters.  Not used.
 * Outputs:
 *      TUInt32                     -- Never returns.
 *---------------------------------------------------------------------------*/
TUInt32 Heartbeat(T_uezTask aMyTask, void *aParams)
{
	UEZGPIOOutput(GPIO_PD0);
	
    // Blink
    for (;;) {
        UEZGPIOSet(GPIO_PD0);
        UEZTaskDelay(250);
        UEZGPIOClear(GPIO_PD0);
        UEZTaskDelay(250);
    }

    return 0;
}
예제 #8
0
/*---------------------------------------------------------------------------*
 * Routine:  UnMute
 *---------------------------------------------------------------------------*
 * Description:
 *     Takes the amp out of standby mode
 * Inputs:
 *      void *aWorkSpace
 * Outputs:
 *      T_uezError                   -- Error code
 *---------------------------------------------------------------------------*/
T_uezError AudioAmp_8551T_UnMute(void *aWorkSpace)
{
    T_AudioAmp_8551T_Workspace *p = (T_AudioAmp_8551T_Workspace *)aWorkSpace;

    UEZSemaphoreGrab(p->iSem, UEZ_TIMEOUT_INFINITE);

    if (p->iIsMuted) {
        p->iIsMuted = EFalse;
        UEZGPIOSetMux(p->iModeGPIO, 0); // set to GPIO
        UEZGPIOClear(p->iModeGPIO);
    }

    UEZSemaphoreRelease(p->iSem);

    return UEZ_ERROR_NONE;
}
예제 #9
0
void LCD_LQ104V1DG28_Create(char* aName,
                            T_uezGPIOPortPin aStandByControlPin)
{
    T_LQ104V1DG28Workspace *p;
    T_uezDevice lcd;
    T_uezDeviceWorkspace *p_lcd;

    UEZDeviceTableFind(aName, &lcd);
    UEZDeviceTableGetWorkspace(lcd, &p_lcd);

    p = (T_LQ104V1DG28Workspace*)p_lcd;

    p->iStandByControlPin;

    UEZGPIOClear(p->iStandByControlPin);
}
예제 #10
0
/*---------------------------------------------------------------------------*
 * Routine:  UEZGUI_EXP_DK_USB_Host_Port_B_Detect
 *---------------------------------------------------------------------------*
 * Description:
 *      Detect USB Host mode on mini-AB port using OTG adapter ID pin to GND
 *---------------------------------------------------------------------------*/
TBool UEZGUI_EXP_DK_USB_Host_Port_B_Detect()
{
    TBool IsDevice;

    UEZGPIOLock(GPIO_USB_HOST_ENABLE); // P0_12 on LPC1788 uEZGUIs
    UEZGPIOSet(GPIO_USB_HOST_ENABLE); // disable MIC2025 power for USB
    UEZGPIOOutput(GPIO_USB_HOST_ENABLE);
    UEZGPIOInput(GPIO_EXPDK_USBDID);
    UEZGPIOSetMux(GPIO_EXPDK_USBDID, 0);

    IsDevice = UEZGPIORead(GPIO_EXPDK_USBDID);

    if(!IsDevice){
        UEZGPIOClear(GPIO_USB_HOST_ENABLE);// enable MIC2025 USB Power
    }
    return IsDevice;
}
예제 #11
0
int CmdLED(void *aWorkspace, int argc, char *argv[])
{
    TUInt32 on;

    if (argc == 2) {
        on = FDICmdUValue(argv[1]);
        UEZGPIOOutput(GPIO_PE3);
        if (on) {
            UEZGPIOClear(GPIO_PE3);
            FDICmdPrintf(aWorkspace, "PASS: On\n");
        } else {
            UEZGPIOSet(GPIO_PE3);
            FDICmdPrintf(aWorkspace, "PASS: Off\n");
        }
    } else {
        FDICmdPrintf(aWorkspace, "FAIL: Incorrect parameters\n");
    }
    return 0;
}
예제 #12
0
/*---------------------------------------------------------------------------*
 * Routine:  TS_EXC7200_Configure
 *---------------------------------------------------------------------------*
 * Description:
 *      The SPI bus and GPIO device are being declared.
 * Inputs:
 *      void *aW                    -- Particular SPI workspace
 * Outputs:
 *      T_uezError                   -- Error code
 *---------------------------------------------------------------------------*/
T_uezError TS_EXC7200_Configure(T_uezDeviceWorkspace *aW)
{
    T_EXC7200Workspace *p = (T_EXC7200Workspace *)aW;

    UEZSemaphoreGrab(p->iSemWaitForTouch, 0);

    UEZGPIOSetMux(p->iResetPin, 0);//Set to GPIO
    UEZGPIOOutput(p->iResetPin);
    UEZGPIOClear(p->iResetPin);

    UEZTaskDelay(1);
    UEZGPIOConfigureInterruptCallback(
        UEZ_GPIO_PORT_FROM_PORT_PIN(p->iInteruptPin),
        TS_EXC7200_InterruptISR,
        p);
    UEZGPIOEnableIRQ(p->iInteruptPin, GPIO_INTERRUPT_FALLING_EDGE);

    UEZGPIOSet(p->iResetPin);
    
    T_uezDevice i2c;
    I2C_Request request;
    T_uezError error;
    TUInt8 dataIn[10];
    TUInt8 dataOut[10] = { 0x03, 0x06, 0x0A, 0x04, 0x36, 0x3f, 0x01, 9, 0, 0};

    request.iAddr = EXC7200_I2C_ADDRESS;
    request.iSpeed = EXC7200_I2C_SPEED;
    request.iReadData = dataIn;
    request.iReadLength = 10;
    request.iWriteData = dataOut;
    request.iWriteLength = 10;

    UEZI2COpen(p->iI2CBus, &i2c);
    error = UEZI2CTransaction(i2c, &request);
                      

    return UEZ_ERROR_NONE;
}
예제 #13
0
/*---------------------------------------------------------------------------*
 * Routine:  Close
 *---------------------------------------------------------------------------*
 * Description:
 *     Puts the device in standby when iNumOpen is 0
 * Inputs:
 *      void *aWorkSpace
 * Outputs:
 *      T_uezError                   -- Error code
 *---------------------------------------------------------------------------*/
T_uezError AudioAmp_8551T_Close(void *aWorkSpace)
{
    T_AudioAmp_8551T_Workspace *p = (T_AudioAmp_8551T_Workspace *)aWorkSpace;

    if (p->iIsOn) {
        p->iNumOpen--;
    }

    if (p->iNumOpen == 0) {
        UEZGPIOOutput(p->iModeGPIO);
        UEZGPIOSetMux(p->iModeGPIO, 0); // set to GPIO
        UEZGPIOSet(p->iModeGPIO); // set to standby
        p->iIsOn = EFalse;
        p->iIsMuted = EFalse;
        p->iLevel = DEFAULT_LEVEL;
    }
    if (p->iVolEnableGPIO != GPIO_NONE)
        UEZGPIOClear(p->iVolEnableGPIO);

    UEZSemaphoreRelease(p->iSem);

    return UEZ_ERROR_NONE;
}
예제 #14
0
/*---------------------------------------------------------------------------*
 * Routine:  UEZPlatform_SpeakerMasterCallback
 *---------------------------------------------------------------------------*
 * Description:
 *      Master MTU10 callback function for clearing the GPIO PWM Speaker pin
 *---------------------------------------------------------------------------*/
void UEZPlatform_SpeakerMasterCallback(void *aWorkspace)
{
	UEZGPIOClear(GPIO_P17);	// AUD_R
	UEZGPIOClear(GPIO_PA0);	// AUD_L
}
예제 #15
0
/*--------------------------------------------------------------------------*/
T_uezError GainSpan_CmdLib_ConfigureForSPI(
    const T_GainSpan_CmdLib_SPISettings *aSettings)
{
    T_uezError error;
    ATLIBGS_MSG_ID_E r;
    int i;

    G_GSCmdLibSettings = *aSettings;
    G_GSSPITemplate.iBitsPerTransfer = 8;
    G_GSSPITemplate.iCSPolarity = EFalse; // Falling edge
    G_GSSPITemplate.iClockOutPolarity = EFalse; // Falling edge
    G_GSSPITemplate.iClockOutPhase = EFalse; // ETrue;
    G_GSSPITemplate.iDataMISO = 0;
    G_GSSPITemplate.iDataMISO = 0;
    G_GSSPITemplate.iNumTransferredIn = 0;
    G_GSSPITemplate.iNumTransferredOut = 0;
    G_GSSPITemplate.iRate = aSettings->iRate / 1000;
    G_GSSPITemplate.iCSGPIOPort = GPIO_TO_HAL_PORT(aSettings->iSPIChipSelect);
    G_GSSPITemplate.iCSGPIOBit = GPIO_TO_PIN_BIT(aSettings->iSPIChipSelect);

    error = UEZSPIOpen(G_GSCmdLibSettings.iSPIDeviceName, &G_GSSPI);
    if (error)
        return error;

    // Ensure these pins are not configured elsewhere
    UEZGPIOLock(G_GSCmdLibSettings.iDataReadyIO);

    if (G_GSCmdLibSettings.iSRSTn != GPIO_NONE ){
        UEZGPIOLock(G_GSCmdLibSettings.iSRSTn);
        UEZGPIOOutput(G_GSCmdLibSettings.iSRSTn);       // WIFI_SRSTn
    }

    UEZGPIOInput(G_GSCmdLibSettings.iDataReadyIO);       // WIFI IRQ

    if (G_GSCmdLibSettings.iProgramMode != GPIO_NONE ) {
        UEZGPIOLock(G_GSCmdLibSettings.iProgramMode);
        UEZGPIOClear(G_GSCmdLibSettings.iProgramMode);       // WIFI PROGRAM OFF
        UEZGPIOOutput(G_GSCmdLibSettings.iProgramMode);      // WIFI PROGRAM OFF
    }

    if (G_GSCmdLibSettings.iSPIMode != GPIO_NONE ) {
        UEZGPIOLock(G_GSCmdLibSettings.iSPIMode);
        UEZGPIOSet(G_GSCmdLibSettings.iSPIMode);          // WIFI_MODE SPI
        UEZGPIOOutput(G_GSCmdLibSettings.iSPIMode);       // WIFI_MODE SPI
    }

    UEZTaskDelay(1250);

    if (G_GSCmdLibSettings.iSRSTn != GPIO_NONE )
        UEZGPIOSet(G_GSCmdLibSettings.iSRSTn);          // WIFI_SRSTn

    UEZTaskDelay(1000);

    // Initialize the GainSpan SPI routines
    GainSpan_SPI_Start();

    // Flush anything there
    AtLibGs_FlushIncomingMessage();

    /* Send command to check 5 times for module */
    for (i = 0; i < 5; i++){
        AtLibGs_FlushIncomingMessage();
        r = AtLibGs_Check(GAINSPAN_AT_DEFAULT_TIMEOUT);
        if(ATLIBGS_MSG_ID_OK == r){
        break;
        }
    }
    if(ATLIBGS_MSG_ID_RESPONSE_TIMEOUT == r){
         return UEZ_ERROR_NOT_FOUND;
    }

    /* Send command to DISABLE echo */
    do {
        r = AtLibGs_SetEcho(ATLIBGS_DISABLE);
    } while (ATLIBGS_MSG_ID_OK != r);

    // For now, just report it is not found
    if (r != ATLIBGS_MSG_ID_OK)
        return UEZ_ERROR_NOT_FOUND;

    return UEZ_ERROR_NONE;
}