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Diffstat (limited to 'lib/lufa/Projects/TempDataLogger/TempDataLogger.c')
| -rw-r--r-- | lib/lufa/Projects/TempDataLogger/TempDataLogger.c | 331 |
1 files changed, 331 insertions, 0 deletions
diff --git a/lib/lufa/Projects/TempDataLogger/TempDataLogger.c b/lib/lufa/Projects/TempDataLogger/TempDataLogger.c new file mode 100644 index 000000000..1dc267a6f --- /dev/null +++ b/lib/lufa/Projects/TempDataLogger/TempDataLogger.c @@ -0,0 +1,331 @@ +/* + 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); + } +} + |