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diff --git a/lib/lufa/Projects/TempDataLogger/TempDataLogger.c b/lib/lufa/Projects/TempDataLogger/TempDataLogger.c
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+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2017.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ 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
+ 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
+ software without specific, written prior permission.
+
+ The author disclaims all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+/** \file
+ *
+ * Main source file for the TemperatureDataLogger project. This file contains the main tasks of
+ * the project and is responsible for the initial application hardware configuration.
+ */
+
+#include "TempDataLogger.h"
+
+/** LUFA Mass Storage Class driver interface configuration and state information. This structure is
+ * passed to all Mass Storage Class driver functions, so that multiple instances of the same class
+ * within a device can be differentiated from one another.
+ */
+USB_ClassInfo_MS_Device_t Disk_MS_Interface =
+ {
+ .Config =
+ {
+ .InterfaceNumber = INTERFACE_ID_MassStorage,
+ .DataINEndpoint =
+ {
+ .Address = MASS_STORAGE_IN_EPADDR,
+ .Size = MASS_STORAGE_IO_EPSIZE,
+ .Banks = 1,
+ },
+ .DataOUTEndpoint =
+ {
+ .Address = MASS_STORAGE_OUT_EPADDR,
+ .Size = MASS_STORAGE_IO_EPSIZE,
+ .Banks = 1,
+ },
+ .TotalLUNs = 1,
+ },
+ };
+
+/** Buffer to hold the previously generated HID report, for comparison purposes inside the HID class driver. */
+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
+ * within a device can be differentiated from one another.
+ */
+USB_ClassInfo_HID_Device_t Generic_HID_Interface =
+ {
+ .Config =
+ {
+ .InterfaceNumber = INTERFACE_ID_HID,
+ .ReportINEndpoint =
+ {
+ .Address = GENERIC_IN_EPADDR,
+ .Size = GENERIC_EPSIZE,
+ .Banks = 1,
+ },
+ .PrevReportINBuffer = PrevHIDReportBuffer,
+ .PrevReportINBufferSize = sizeof(PrevHIDReportBuffer),
+ },
+ };
+
+/** Non-volatile Logging Interval value in EEPROM, stored as a number of 500ms ticks */
+static uint8_t EEMEM LoggingInterval500MS_EEPROM = DEFAULT_LOG_INTERVAL;
+
+/** SRAM Logging Interval value fetched from EEPROM, stored as a number of 500ms ticks */
+static uint8_t LoggingInterval500MS_SRAM;
+
+/** Total number of 500ms logging ticks elapsed since the last log value was recorded */
+static uint16_t CurrentLoggingTicks;
+
+/** FAT Fs structure to hold the internal state of the FAT driver for the Dataflash contents. */
+static FATFS DiskFATState;
+
+/** FAT Fs structure to hold a FAT file handle for the log data write destination. */
+static FIL TempLogFile;
+
+
+/** ISR to handle the 500ms ticks for sampling and data logging */
+ISR(TIMER1_COMPA_vect, ISR_BLOCK)
+{
+ /* Signal a 500ms tick has elapsed to the RTC */
+ RTC_Tick500ms();
+
+ /* Check to see if the logging interval has expired */
+ if (++CurrentLoggingTicks < LoggingInterval500MS_SRAM)
+ return;
+
+ /* Reset log tick counter to prepare for next logging interval */
+ CurrentLoggingTicks = 0;
+
+ uint8_t LEDMask = LEDs_GetLEDs();
+ LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
+
+ /* Only log when not connected to a USB host */
+ if (USB_DeviceState == DEVICE_STATE_Unattached)
+ {
+ TimeDate_t CurrentTimeDate;
+ RTC_GetTimeDate(&CurrentTimeDate);
+
+ char LineBuffer[100];
+ uint16_t BytesWritten;
+
+ 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);
+}
+
+/** Main program entry point. This routine contains the overall program flow, including initial
+ * setup of all components and the main program loop.
+ */
+int main(void)
+{
+ SetupHardware();
+
+ /* 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;
+
+ /* Mount and open the log file on the Dataflash FAT partition */
+ OpenLogFile();
+
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+ GlobalInterruptEnable();
+
+ for (;;)
+ {
+ MS_Device_USBTask(&Disk_MS_Interface);
+ HID_Device_USBTask(&Generic_HID_Interface);
+ USB_USBTask();
+ }
+}
+
+/** Opens the log file on the Dataflash's FAT formatted partition according to the current date */
+void OpenLogFile(void)
+{
+ char LogFileName[12];
+
+ /* Get the current date for the filename as "DDMMYY.csv" */
+ TimeDate_t CurrentTimeDate;
+ RTC_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);
+ f_open(&TempLogFile, LogFileName, FA_OPEN_ALWAYS | FA_WRITE);
+ f_lseek(&TempLogFile, TempLogFile.fsize);
+}
+
+/** Closes the open data log file on the Dataflash's FAT formatted partition */
+void CloseLogFile(void)
+{
+ /* Sync any data waiting to be written, unmount the storage device */
+ f_sync(&TempLogFile);
+ f_close(&TempLogFile);
+}
+
+/** Configures the board hardware and chip peripherals for the demo's functionality. */
+void SetupHardware(void)
+{
+#if (ARCH == ARCH_AVR8)
+ /* Disable watchdog if enabled by bootloader/fuses */
+ MCUSR &= ~(1 << WDRF);
+ wdt_disable();
+
+ /* Disable clock division */
+ clock_prescale_set(clock_div_1);
+#endif
+
+ /* Hardware Initialization */
+ LEDs_Init();
+ ADC_Init(ADC_FREE_RUNNING | ADC_PRESCALE_128);
+ Temperature_Init();
+ Dataflash_Init();
+ USB_Init();
+ TWI_Init(TWI_BIT_PRESCALE_4, TWI_BITLENGTH_FROM_FREQ(4, 50000));
+ RTC_Init();
+
+ /* 500ms logging interval timer configuration */
+ OCR1A = (((F_CPU / 256) / 2) - 1);
+ TCCR1B = (1 << WGM12) | (1 << CS12);
+ TIMSK1 = (1 << OCIE1A);
+
+ /* Check if the Dataflash is working, abort if not */
+ if (!(DataflashManager_CheckDataflashOperation()))
+ {
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ for(;;);
+ }
+
+ /* Clear Dataflash sector protections, if enabled */
+ DataflashManager_ResetDataflashProtections();
+}
+
+/** Event handler for the library USB Connection event. */
+void EVENT_USB_Device_Connect(void)
+{
+ LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+
+ /* Close the log file so that the host has exclusive file system access */
+ CloseLogFile();
+}
+
+/** Event handler for the library USB Disconnection event. */
+void EVENT_USB_Device_Disconnect(void)
+{
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+
+ /* Mount and open the log file on the Dataflash FAT partition */
+ OpenLogFile();
+}
+
+/** Event handler for the library USB Configuration Changed event. */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+ bool ConfigSuccess = true;
+
+ ConfigSuccess &= HID_Device_ConfigureEndpoints(&Generic_HID_Interface);
+ ConfigSuccess &= MS_Device_ConfigureEndpoints(&Disk_MS_Interface);
+
+ LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
+}
+
+/** 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);
+}
+
+/** Mass Storage class driver callback function the reception of SCSI commands from the host, which must be processed.
+ *
+ * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface configuration structure being referenced
+ */
+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 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)
+ *
+ * \return Boolean \c true to force the sending of the report, \c false to let the library determine if it needs to be sent
+ */
+bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
+ uint8_t* const ReportID,
+ const uint8_t ReportType,
+ void* ReportData,
+ uint16_t* const ReportSize)
+{
+ Device_Report_t* ReportParams = (Device_Report_t*)ReportData;
+
+ RTC_GetTimeDate(&ReportParams->TimeDate);
+
+ ReportParams->LogInterval500MS = LoggingInterval500MS_SRAM;
+
+ *ReportSize = sizeof(Device_Report_t);
+ return true;
+}
+
+/** HID class driver callback function for the processing of HID reports from the host.
+ *
+ * \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 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,
+ const uint8_t ReportID,
+ const uint8_t ReportType,
+ const void* ReportData,
+ const uint16_t ReportSize)
+{
+ Device_Report_t* ReportParams = (Device_Report_t*)ReportData;
+
+ RTC_SetTimeDate(&ReportParams->TimeDate);
+
+ /* If the logging interval has changed from its current value, write it to EEPROM */
+ if (LoggingInterval500MS_SRAM != ReportParams->LogInterval500MS)
+ {
+ LoggingInterval500MS_SRAM = ReportParams->LogInterval500MS;
+ eeprom_update_byte(&LoggingInterval500MS_EEPROM, LoggingInterval500MS_SRAM);
+ }
+}
+