+++ /dev/null
-/*
- LUFA Library
- Copyright (C) Dean Camera, 2010.
-
- dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
-*/
-
-/*
- Copyright 2010 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 disclaim 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 = 0,
-
- .DataINEndpointNumber = MASS_STORAGE_IN_EPNUM,
- .DataINEndpointSize = MASS_STORAGE_IO_EPSIZE,
- .DataINEndpointDoubleBank = false,
-
- .DataOUTEndpointNumber = MASS_STORAGE_OUT_EPNUM,
- .DataOUTEndpointSize = MASS_STORAGE_IO_EPSIZE,
- .DataOUTEndpointDoubleBank = false,
-
- .TotalLUNs = 1,
- },
- };
-
-/** Buffer to hold the previously generated HID report, for comparison purposes inside the HID class driver. */
-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 = 1,
-
- .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;
-
-/** SRAM Logging Interval value fetched from EEPROM, stored as a number of 500ms ticks */
-uint8_t LoggingInterval500MS_SRAM;
-
-/** Total number of 500ms logging ticks elapsed since the last log value was recorded */
-uint16_t CurrentLoggingTicks;
-
-/** FAT Fs structure to hold the internal state of the FAT driver for the dataflash contents. */
-FATFS DiskFATState;
-
-/** FAT Fs structure to hold a FAT file handle for the log data write destination. */
-FIL TempLogFile;
-
-
-/** ISR to handle the 500ms ticks for sampling and data logging */
-ISR(TIMER1_COMPA_vect, ISR_BLOCK)
-{
- uint8_t LEDMask = LEDs_GetLEDs();
-
- /* Check to see if the logging interval has expired */
- if (CurrentLoggingTicks++ < LoggingInterval500MS_SRAM)
- return;
-
- LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
-
- /* Reset log tick counter to prepare for next logging interval */
- CurrentLoggingTicks = 0;
-
- /* 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);
-
- 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());
-
- 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);
- 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);
- 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" */
- uint8_t Day, Month, Year;
- DS1307_GetDate(&Day, &Month, &Year);
- sprintf(LogFileName, "%02d%02d%02d.csv", Day, Month, 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)
-{
- /* Disable watchdog if enabled by bootloader/fuses */
- MCUSR &= ~(1 << WDRF);
- wdt_disable();
-
- /* Disable clock division */
- clock_prescale_set(clock_div_1);
-
- /* 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);
- Temperature_Init();
- Dataflash_Init();
- USB_Init();
- TWI_Init();
-
- /* 500ms logging interval timer configuration */
- OCR1A = ((F_CPU / 1024) / 2);
- TCCR1B = (1 << WGM12) | (1 << CS12) | (1 << CS10);
- TIMSK1 = (1 << OCIE1A);
-
- /* 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 filesystem 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)
-{
- LEDs_SetAllLEDs(LEDMASK_USB_READY);
-
- if (!(MS_Device_ConfigureEndpoints(&Disk_MS_Interface)))
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
- if (!(HID_Device_ConfigureEndpoints(&Generic_HID_Interface)))
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-}
-
-/** Event handler for the library USB Unhandled Control Request event. */
-void EVENT_USB_Device_UnhandledControlRequest(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 REPORT_ITEM_TYPE_In or REPORT_ITEM_TYPE_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 true to force the sending of the report, 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* ReportSize)
-{
- Device_Report_t* ReportParams = (Device_Report_t*)ReportData;
-
- DS1307_GetDate(&ReportParams->Day, &ReportParams->Month, &ReportParams->Year);
- DS1307_GetTime(&ReportParams->Hour, &ReportParams->Minute, &ReportParams->Second);
-
- 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 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] 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;
-
- DS1307_SetDate(ReportParams->Day, ReportParams->Month, ReportParams->Year);
- DS1307_SetTime(ReportParams->Hour, ReportParams->Minute, ReportParams->Second);
-
- /* 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);
- }
-}
projects / pub / lufa.git / blobdiff