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274 lines
8.7 KiB
C
274 lines
8.7 KiB
C
8 years ago
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2017.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaims all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* Main source file for the JoystickHostWithParser demo. This file contains the main tasks of
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* the demo and is responsible for the initial application hardware configuration.
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*/
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#include "JoystickHostWithParser.h"
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/** Main program entry point. This routine configures the hardware required by the application, then
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* enters a loop to run the application tasks in sequence.
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*/
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int main(void)
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{
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SetupHardware();
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puts_P(PSTR(ESC_FG_CYAN "Joystick HID Parser Host Demo running.\r\n" ESC_FG_WHITE));
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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GlobalInterruptEnable();
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for (;;)
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{
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JoystickHost_Task();
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USB_USBTask();
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}
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}
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/** Configures the board hardware and chip peripherals for the demo's functionality. */
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void SetupHardware(void)
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{
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#if (ARCH == ARCH_AVR8)
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/* Disable watchdog if enabled by bootloader/fuses */
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MCUSR &= ~(1 << WDRF);
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wdt_disable();
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/* Disable clock division */
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clock_prescale_set(clock_div_1);
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#endif
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/* Hardware Initialization */
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Serial_Init(9600, false);
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LEDs_Init();
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USB_Init();
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/* Create a stdio stream for the serial port for stdin and stdout */
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Serial_CreateStream(NULL);
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}
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/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
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* starts the library USB task to begin the enumeration and USB management process.
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*/
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void EVENT_USB_Host_DeviceAttached(void)
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{
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puts_P(PSTR(ESC_FG_GREEN "Device Attached.\r\n" ESC_FG_WHITE));
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LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
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}
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/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
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* stops the library USB task management process.
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*/
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void EVENT_USB_Host_DeviceUnattached(void)
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{
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puts_P(PSTR(ESC_FG_GREEN "Device Unattached.\r\n" ESC_FG_WHITE));
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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}
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/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
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* enumerated by the host and is now ready to be used by the application.
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*/
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void EVENT_USB_Host_DeviceEnumerationComplete(void)
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{
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puts_P(PSTR("Getting Config Data.\r\n"));
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uint8_t ErrorCode;
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/* Get and process the configuration descriptor data */
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if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
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{
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if (ErrorCode == ControlError)
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puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
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else
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puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
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printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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return;
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}
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/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
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if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
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{
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printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
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" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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return;
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}
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printf_P(PSTR("Processing HID Report (Size %d Bytes).\r\n"), HIDReportSize);
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/* Get and process the device's first HID report descriptor */
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if ((ErrorCode = GetHIDReportData()) != ParseSuccessful)
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{
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puts_P(PSTR(ESC_FG_RED "Report Parse Error.\r\n"));
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if (!(HIDReportInfo.TotalReportItems))
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puts_P(PSTR("Not a valid Joystick." ESC_FG_WHITE));
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else
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printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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USB_Host_SetDeviceConfiguration(0);
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return;
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}
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puts_P(PSTR("Joystick Enumerated.\r\n"));
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LEDs_SetAllLEDs(LEDMASK_USB_READY);
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}
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/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
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void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
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{
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USB_Disable();
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printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
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" -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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for(;;);
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}
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/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
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* enumerating an attached USB device.
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*/
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void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)
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{
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printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
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" -- Error Code %d\r\n"
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" -- Sub Error Code %d\r\n"
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" -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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}
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/** Task to read and process the HID report descriptor and HID reports from the device
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* and display the results onto the board LEDs.
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*/
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void JoystickHost_Task(void)
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{
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if (USB_HostState != HOST_STATE_Configured)
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return;
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/* Select and unfreeze joystick data pipe */
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Pipe_SelectPipe(JOYSTICK_DATA_IN_PIPE);
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Pipe_Unfreeze();
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/* Check to see if a packet has been received */
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if (Pipe_IsINReceived())
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{
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/* Check if data has been received from the attached joystick */
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if (Pipe_IsReadWriteAllowed())
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{
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/* Create buffer big enough for the report */
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uint8_t JoystickReport[Pipe_BytesInPipe()];
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/* Load in the joystick report */
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Pipe_Read_Stream_LE(JoystickReport, Pipe_BytesInPipe(), NULL);
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/* Process the read in joystick report from the device */
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ProcessJoystickReport(JoystickReport);
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}
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/* Clear the IN endpoint, ready for next data packet */
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Pipe_ClearIN();
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}
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/* Freeze joystick data pipe */
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Pipe_Freeze();
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}
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/** Processes a read HID report from an attached joystick, extracting out elements via the HID parser results
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* as required and displays movement and button presses on the board LEDs.
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*
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* \param[in] JoystickReport Pointer to a HID report from an attached joystick device
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*/
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void ProcessJoystickReport(uint8_t* JoystickReport)
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{
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uint8_t LEDMask = LEDS_NO_LEDS;
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/* Check each HID report item in turn, looking for joystick X/Y/button reports */
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for (uint8_t ReportNumber = 0; ReportNumber < HIDReportInfo.TotalReportItems; ReportNumber++)
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{
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/* Create a temporary item pointer to the next report item */
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HID_ReportItem_t* ReportItem = &HIDReportInfo.ReportItems[ReportNumber];
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bool FoundData;
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if ((ReportItem->Attributes.Usage.Page == USAGE_PAGE_BUTTON) &&
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(ReportItem->ItemType == HID_REPORT_ITEM_In))
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{
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/* Get the joystick button value */
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FoundData = USB_GetHIDReportItemInfo(JoystickReport, ReportItem);
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/* For multi-report devices - if the requested data was not in the issued report, continue */
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if (!(FoundData))
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continue;
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/* If button is pressed, all LEDs are turned on */
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if (ReportItem->Value)
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LEDMask = LEDS_ALL_LEDS;
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}
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else if ((ReportItem->Attributes.Usage.Page == USAGE_PAGE_GENERIC_DCTRL) &&
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((ReportItem->Attributes.Usage.Usage == USAGE_X) ||
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(ReportItem->Attributes.Usage.Usage == USAGE_Y)) &&
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(ReportItem->ItemType == HID_REPORT_ITEM_In))
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{
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/* Get the joystick relative position value */
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FoundData = USB_GetHIDReportItemInfo(JoystickReport, ReportItem);
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/* For multi-report devices - if the requested data was not in the issued report, continue */
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if (!(FoundData))
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continue;
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int16_t DeltaMovement = HID_ALIGN_DATA(ReportItem, int16_t);
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/* Check to see if a (non-zero) delta movement has been indicated */
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if (DeltaMovement)
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{
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/* Determine if the report is for the X or Y delta movement, light LEDs as appropriate */
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if (ReportItem->Attributes.Usage.Usage == USAGE_X)
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LEDMask |= ((DeltaMovement > 0) ? LEDS_LED1 : LEDS_LED2);
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else
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LEDMask |= ((DeltaMovement > 0) ? LEDS_LED3 : LEDS_LED4);
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}
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}
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}
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/* Display the button information on the board LEDs */
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LEDs_SetAllLEDs(LEDMask);
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}
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