Add new tag for the LUFA-120219-BETA release.
[pub/USBasp.git] / Projects / TempDataLogger / TempDataLogger.c
index d26871b..258bfc3 100644 (file)
@@ -1,21 +1,21 @@
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2010.
-              
+     Copyright (C) Dean Camera, 2012.
+
   dean [at] fourwalledcubicle [dot] com
-      www.fourwalledcubicle.com
+           www.lufa-lib.org
 */
 
 /*
-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2012  Dean Camera (dean [at] fourwalledcubicle [dot] com)
 
-  Permission to use, copy, modify, distribute, and sell this 
+  Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
-  without fee, provided that the above copyright notice appear in 
+  without fee, provided that the above copyright notice appear in
   all copies and that both that the copyright notice and this
-  permission notice and warranty disclaimer appear in supporting 
-  documentation, and that the name of the author not be used in 
-  advertising or publicity pertaining to distribution of the 
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
   software without specific, written prior permission.
 
   The author disclaim all warranties with regard to this
@@ -59,7 +59,7 @@ USB_ClassInfo_MS_Device_t Disk_MS_Interface =
        };
 
 /** Buffer to hold the previously generated HID report, for comparison purposes inside the HID class driver. */
-uint8_t PrevHIDReportBuffer[GENERIC_REPORT_SIZE];
+static uint8_t PrevHIDReportBuffer[GENERIC_REPORT_SIZE];
 
 /** LUFA HID Class driver interface configuration and state information. This structure is
  *  passed to all HID Class driver functions, so that multiple instances of the same class
@@ -74,26 +74,26 @@ USB_ClassInfo_HID_Device_t Generic_HID_Interface =
                                .ReportINEndpointNumber       = GENERIC_IN_EPNUM,
                                .ReportINEndpointSize         = GENERIC_EPSIZE,
                                .ReportINEndpointDoubleBank   = false,
-                               
+
                                .PrevReportINBuffer           = PrevHIDReportBuffer,
                                .PrevReportINBufferSize       = sizeof(PrevHIDReportBuffer),
                        },
        };
 
 /** Non-volatile Logging Interval value in EEPROM, stored as a number of 500ms ticks */
-uint8_t EEMEM LoggingInterval500MS_EEPROM = DEFAULT_LOG_INTERVAL;
+static uint8_t EEMEM LoggingInterval500MS_EEPROM = DEFAULT_LOG_INTERVAL;
 
 /** SRAM Logging Interval value fetched from EEPROM, stored as a number of 500ms ticks */
-uint8_t LoggingInterval500MS_SRAM;
+static uint8_t LoggingInterval500MS_SRAM;
 
 /** Total number of 500ms logging ticks elapsed since the last log value was recorded */
-uint16_t CurrentLoggingTicks;
+static uint16_t CurrentLoggingTicks;
 
 /** FAT Fs structure to hold the internal state of the FAT driver for the Dataflash contents. */
-FATFS DiskFATState;
+static FATFS DiskFATState;
 
 /** FAT Fs structure to hold a FAT file handle for the log data write destination. */
-FIL TempLogFile;
+static FIL TempLogFile;
 
 
 /** ISR to handle the 500ms ticks for sampling and data logging */
@@ -102,33 +102,32 @@ ISR(TIMER1_COMPA_vect, ISR_BLOCK)
        uint8_t LEDMask = LEDs_GetLEDs();
 
        /* Check to see if the logging interval has expired */
-       if (CurrentLoggingTicks++ < LoggingInterval500MS_SRAM)
+       if (++CurrentLoggingTicks < LoggingInterval500MS_SRAM)
          return;
-           
+
        /* Reset log tick counter to prepare for next logging interval */
        CurrentLoggingTicks = 0;
 
        LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
-       
+
        /* Only log when not connected to a USB host */
        if (USB_DeviceState == DEVICE_STATE_Unattached)
        {
-               uint8_t Day,  Month,  Year;
-               uint8_t Hour, Minute, Second;
-
-               DS1307_GetDate(&Day,  &Month,  &Year);
-               DS1307_GetTime(&Hour, &Minute, &Second);
+               TimeDate_t CurrentTimeDate;
+               DS1307_GetTimeDate(&CurrentTimeDate);
 
                char     LineBuffer[100];
                uint16_t BytesWritten;
 
-               BytesWritten = sprintf(LineBuffer, "%02d/%02d/20%04d, %02d:%02d:%02d, %d Degrees\r\n",
-                                                          Day, Month, Year, Hour, Minute, Second, Temperature_GetTemperature());
+               BytesWritten = sprintf(LineBuffer, "%02d/%02d/20%02d, %02d:%02d:%02d, %d Degrees\r\n",
+                                      CurrentTimeDate.Day, CurrentTimeDate.Month, CurrentTimeDate.Year,
+                                      CurrentTimeDate.Hour, CurrentTimeDate.Minute, CurrentTimeDate.Second,
+                                      Temperature_GetTemperature());
 
                f_write(&TempLogFile, LineBuffer, BytesWritten, &BytesWritten);
                f_sync(&TempLogFile);
        }
-       
+
        LEDs_SetAllLEDs(LEDMask);
 }
 
@@ -141,7 +140,7 @@ int main(void)
 
        /* Fetch logging interval from EEPROM */
        LoggingInterval500MS_SRAM = eeprom_read_byte(&LoggingInterval500MS_EEPROM);
-       
+
        /* Check if the logging interval is invalid (0xFF) indicating that the EEPROM is blank */
        if (LoggingInterval500MS_SRAM == 0xFF)
          LoggingInterval500MS_SRAM = DEFAULT_LOG_INTERVAL;
@@ -152,10 +151,6 @@ int main(void)
        LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
        sei();
 
-       /* Discard the first sample from the temperature sensor, as it is generally incorrect */
-       volatile uint8_t Dummy = Temperature_GetTemperature();
-       (void)Dummy;
-       
        for (;;)
        {
                MS_Device_USBTask(&Disk_MS_Interface);
@@ -170,9 +165,9 @@ void OpenLogFile(void)
        char LogFileName[12];
 
        /* Get the current date for the filename as "DDMMYY.csv" */
-       uint8_t Day, Month, Year;
-       DS1307_GetDate(&Day, &Month, &Year);
-       sprintf(LogFileName, "%02d%02d%02d.csv", Day, Month, Year);
+       TimeDate_t CurrentTimeDate;
+       DS1307_GetTimeDate(&CurrentTimeDate);
+       sprintf(LogFileName, "%02d%02d%02d.csv", CurrentTimeDate.Day, CurrentTimeDate.Month, CurrentTimeDate.Year);
 
        /* Mount the storage device, open the file */
        f_mount(0, &DiskFATState);
@@ -201,14 +196,14 @@ void SetupHardware(void)
        /* Hardware Initialization */
        LEDs_Init();
        SPI_Init(SPI_SPEED_FCPU_DIV_2 | SPI_SCK_LEAD_FALLING | SPI_SAMPLE_TRAILING | SPI_MODE_MASTER);
-       ADC_Init(ADC_REFERENCE_AVCC | ADC_FREE_RUNNING | ADC_PRESCALE_128);
+       ADC_Init(ADC_FREE_RUNNING | ADC_PRESCALE_128);
        Temperature_Init();
        Dataflash_Init();
        USB_Init();
-       TWI_Init();
-       
+       TWI_Init(TWI_BIT_PRESCALE_4, TWI_BITLENGTH_FROM_FREQ(4, 50000));
+
        /* 500ms logging interval timer configuration */
-       OCR1A   = ((F_CPU / 1024) / 2);
+       OCR1A   = (((F_CPU / 1024) / 2) - 1);
        TCCR1B  = (1 << WGM12) | (1 << CS12) | (1 << CS10);
        TIMSK1  = (1 << OCIE1A);
 
@@ -229,7 +224,7 @@ void EVENT_USB_Device_Connect(void)
 void EVENT_USB_Device_Disconnect(void)
 {
        LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-       
+
        /* Mount and open the log file on the Dataflash FAT partition */
        OpenLogFile();
 }
@@ -237,17 +232,16 @@ void EVENT_USB_Device_Disconnect(void)
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-       LEDs_SetAllLEDs(LEDMASK_USB_READY);
+       bool ConfigSuccess = true;
+
+       ConfigSuccess &= HID_Device_ConfigureEndpoints(&Generic_HID_Interface);
+       ConfigSuccess &= MS_Device_ConfigureEndpoints(&Disk_MS_Interface);
 
-       if (!(MS_Device_ConfigureEndpoints(&Disk_MS_Interface)))
-         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-         
-       if (!(HID_Device_ConfigureEndpoints(&Generic_HID_Interface)))
-         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);   
+       LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 }
 
-/** Event handler for the library USB Unhandled Control Request event. */
-void EVENT_USB_Device_UnhandledControlRequest(void)
+/** Event handler for the library USB Control Request reception event. */
+void EVENT_USB_Device_ControlRequest(void)
 {
        MS_Device_ProcessControlRequest(&Disk_MS_Interface);
        HID_Device_ProcessControlRequest(&Generic_HID_Interface);
@@ -260,22 +254,21 @@ void EVENT_USB_Device_UnhandledControlRequest(void)
 bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
 {
        bool CommandSuccess;
-       
+
        LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
        CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo);
        LEDs_SetAllLEDs(LEDMASK_USB_READY);
-       
+
        return CommandSuccess;
 }
 
 /** HID class driver callback function for the creation of HID reports to the host.
  *
  *  \param[in]     HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced
- *  \param[in,out] ReportID    Report ID requested by the host if non-zero, otherwise callback should set to the 
- *                             generated report ID
- *  \param[in]     ReportType  Type of the report to create, either REPORT_ITEM_TYPE_In or REPORT_ITEM_TYPE_Feature
+ *  \param[in,out] ReportID    Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID
+ *  \param[in]     ReportType  Type of the report to create, either HID_REPORT_ITEM_In or HID_REPORT_ITEM_Feature
  *  \param[out]    ReportData  Pointer to a buffer where the created report should be stored
- *  \param[out]    ReportSize  Number of bytes written in the report (or zero if no report is to be sent
+ *  \param[out]    ReportSize  Number of bytes written in the report (or zero if no report is to be sent)
  *
  *  \return Boolean true to force the sending of the report, false to let the library determine if it needs to be sent
  */
@@ -287,9 +280,8 @@ bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDIn
 {
        Device_Report_t* ReportParams = (Device_Report_t*)ReportData;
 
-       DS1307_GetDate(&ReportParams->Day,  &ReportParams->Month,  &ReportParams->Year);
-       DS1307_GetTime(&ReportParams->Hour, &ReportParams->Minute, &ReportParams->Second);
-       
+       DS1307_GetTimeDate(&ReportParams->TimeDate);
+
        ReportParams->LogInterval500MS = LoggingInterval500MS_SRAM;
 
        *ReportSize = sizeof(Device_Report_t);
@@ -300,8 +292,8 @@ bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDIn
  *
  *  \param[in] HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced
  *  \param[in] ReportID    Report ID of the received report from the host
- *  \param[in] ReportType  The type of report that the host has sent, either REPORT_ITEM_TYPE_Out or REPORT_ITEM_TYPE_Feature
- *  \param[in] ReportData  Pointer to a buffer where the created report has been stored
+ *  \param[in] ReportType  The type of report that the host has sent, either HID_REPORT_ITEM_Out or HID_REPORT_ITEM_Feature
+ *  \param[in] ReportData  Pointer to a buffer where the received report has been stored
  *  \param[in] ReportSize  Size in bytes of the received HID report
  */
 void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
@@ -311,10 +303,9 @@ void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDI
                                           const uint16_t ReportSize)
 {
        Device_Report_t* ReportParams = (Device_Report_t*)ReportData;
-       
-       DS1307_SetDate(ReportParams->Day,  ReportParams->Month,  ReportParams->Year);
-       DS1307_SetTime(ReportParams->Hour, ReportParams->Minute, ReportParams->Second);
-       
+
+       DS1307_SetTimeDate(&ReportParams->TimeDate);
+
        /* If the logging interval has changed from its current value, write it to EEPROM */
        if (LoggingInterval500MS_SRAM != ReportParams->LogInterval500MS)
        {
@@ -322,3 +313,4 @@ void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDI
                eeprom_update_byte(&LoggingInterval500MS_EEPROM, LoggingInterval500MS_SRAM);
        }
 }
+