-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2009.\r
- \r
- dean [at] fourwalledcubicle [dot] com\r
- www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
- Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
- Permission to use, copy, modify, and distribute this software\r
- and its documentation for any purpose and without fee is hereby\r
- granted, provided that the above copyright notice appear in all\r
- copies and that both that the copyright notice and this\r
- permission notice and warranty disclaimer appear in supporting\r
- documentation, and that the name of the author not be used in\r
- advertising or publicity pertaining to distribution of the\r
- software without specific, written prior permission.\r
-\r
- The author disclaim all warranties with regard to this\r
- software, including all implied warranties of merchantability\r
- and fitness. In no event shall the author be liable for any\r
- special, indirect or consequential damages or any damages\r
- whatsoever resulting from loss of use, data or profits, whether\r
- in an action of contract, negligence or other tortious action,\r
- arising out of or in connection with the use or performance of\r
- this software.\r
-*/\r
-\r
-/** \file\r
- *\r
- * Main source file for the Joystick demo. This file contains the main tasks of the demo and\r
- * is responsible for the initial application hardware configuration.\r
- */\r
-\r
-#include "Joystick.h"\r
-\r
-/* Project Tags, for reading out using the ButtLoad project */\r
-BUTTLOADTAG(ProjName, "LUFA Joystick App");\r
-BUTTLOADTAG(BuildTime, __TIME__);\r
-BUTTLOADTAG(BuildDate, __DATE__);\r
-BUTTLOADTAG(LUFAVersion, "LUFA V" LUFA_VERSION_STRING);\r
-\r
-/* Scheduler Task List */\r
-TASK_LIST\r
-{\r
- { Task: USB_USBTask , TaskStatus: TASK_STOP },\r
- { Task: USB_Joystick_Report , TaskStatus: TASK_STOP },\r
-};\r
-\r
-/** Main program entry point. This routine configures the hardware required by the application, then\r
- * starts the scheduler to run the application tasks.\r
- */\r
-int main(void)\r
-{\r
- /* Disable watchdog if enabled by bootloader/fuses */\r
- MCUSR &= ~(1 << WDRF);\r
- wdt_disable();\r
-\r
- /* Disable clock division */\r
- clock_prescale_set(clock_div_1);\r
-\r
- /* Hardware Initialization */\r
- Joystick_Init();\r
- LEDs_Init();\r
- HWB_Init();\r
- \r
- /* Indicate USB not ready */\r
- UpdateStatus(Status_USBNotReady);\r
- \r
- /* Initialize Scheduler so that it can be used */\r
- Scheduler_Init();\r
-\r
- /* Initialize USB Subsystem */\r
- USB_Init();\r
-\r
- /* Scheduling - routine never returns, so put this last in the main function */\r
- Scheduler_Start();\r
-}\r
-\r
-/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs and\r
- * starts the library USB task to begin the enumeration and USB management process.\r
- */\r
-EVENT_HANDLER(USB_Connect)\r
-{\r
- /* Start USB management task */\r
- Scheduler_SetTaskMode(USB_USBTask, TASK_RUN);\r
-\r
- /* Indicate USB enumerating */\r
- UpdateStatus(Status_USBEnumerating);\r
-}\r
-\r
-/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via\r
- * the status LEDs and stops the USB management and joystick reporting tasks.\r
- */\r
-EVENT_HANDLER(USB_Disconnect)\r
-{\r
- /* Stop running joystick reporting and USB management tasks */\r
- Scheduler_SetTaskMode(USB_Joystick_Report, TASK_STOP);\r
- Scheduler_SetTaskMode(USB_USBTask, TASK_STOP);\r
-\r
- /* Indicate USB not ready */\r
- UpdateStatus(Status_USBNotReady);\r
-}\r
-\r
-/** Event handler for the USB_ConfigurationChanged event. This is fired when the host set the current configuration\r
- * of the USB device after enumeration - the device endpoints are configured and the joystick reporting task started.\r
- */ \r
-EVENT_HANDLER(USB_ConfigurationChanged)\r
-{\r
- /* Setup Joystick Report Endpoint */\r
- Endpoint_ConfigureEndpoint(JOYSTICK_EPNUM, EP_TYPE_INTERRUPT,\r
- ENDPOINT_DIR_IN, JOYSTICK_EPSIZE,\r
- ENDPOINT_BANK_SINGLE);\r
-\r
- /* Indicate USB connected and ready */\r
- UpdateStatus(Status_USBReady);\r
-\r
- /* Start joystick reporting task */\r
- Scheduler_SetTaskMode(USB_Joystick_Report, TASK_RUN);\r
-}\r
-\r
-/** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific\r
- * control requests that are not handled internally by the USB library (including the HID commands, which are\r
- * all issued via the control endpoint), so that they can be handled appropriately for the application.\r
- */\r
-EVENT_HANDLER(USB_UnhandledControlPacket)\r
-{\r
- /* Handle HID Class specific requests */\r
- switch (bRequest)\r
- {\r
- case REQ_GetReport:\r
- if (bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))\r
- {\r
- USB_JoystickReport_Data_t JoystickReportData;\r
- \r
- /* Create the next HID report to send to the host */ \r
- GetNextReport(&JoystickReportData);\r
-\r
- /* Ignore report type and ID number value */\r
- Endpoint_Discard_Word();\r
- \r
- /* Ignore unused Interface number value */\r
- Endpoint_Discard_Word();\r
-\r
- /* Read in the number of bytes in the report to send to the host */\r
- uint16_t wLength = Endpoint_Read_Word_LE();\r
- \r
- /* If trying to send more bytes than exist to the host, clamp the value at the report size */\r
- if (wLength > sizeof(JoystickReportData))\r
- wLength = sizeof(JoystickReportData);\r
-\r
- Endpoint_ClearSetupReceived();\r
- \r
- /* Write the report data to the control endpoint */\r
- Endpoint_Write_Control_Stream_LE(&JoystickReportData, wLength);\r
- \r
- /* Finalize the stream transfer to send the last packet or clear the host abort */\r
- Endpoint_ClearSetupOUT();\r
- }\r
- \r
- break;\r
- }\r
-}\r
-\r
-/** Fills the given HID report data structure with the next HID report to send to the host.\r
- *\r
- * \param ReportData Pointer to a HID report data structure to be filled\r
- *\r
- * \return Boolean true if the new report differs from the last report, false otherwise\r
- */\r
-bool GetNextReport(USB_JoystickReport_Data_t* ReportData)\r
-{\r
- static uint8_t PrevJoyStatus = 0;\r
- uint8_t JoyStatus_LCL = Joystick_GetStatus();\r
- bool InputChanged = false;\r
-\r
- /* Clear the report contents */\r
- memset(ReportData, 0, sizeof(USB_JoystickReport_Data_t));\r
-\r
- if (JoyStatus_LCL & JOY_UP)\r
- ReportData->Y = -100;\r
- else if (JoyStatus_LCL & JOY_DOWN)\r
- ReportData->Y = 100;\r
-\r
- if (JoyStatus_LCL & JOY_RIGHT)\r
- ReportData->X = 100;\r
- else if (JoyStatus_LCL & JOY_LEFT)\r
- ReportData->X = -100;\r
-\r
- if (JoyStatus_LCL & JOY_PRESS)\r
- ReportData->Button = (1 << 1);\r
- \r
- if (HWB_GetStatus())\r
- ReportData->Button |= (1 << 0);\r
- \r
- /* Check if the new report is different to the previous report */\r
- InputChanged = (uint8_t)(PrevJoyStatus ^ JoyStatus_LCL);\r
-\r
- /* Save the current joystick status for later comparison */\r
- PrevJoyStatus = JoyStatus_LCL;\r
-\r
- /* Return whether the new report is different to the previous report or not */\r
- return InputChanged;\r
-}\r
-\r
-/** Function to manage status updates to the user. This is done via LEDs on the given board, if available, but may be changed to\r
- * log to a serial port, or anything else that is suitable for status updates.\r
- *\r
- * \param CurrentStatus Current status of the system, from the Joystick_StatusCodes_t enum\r
- */\r
-void UpdateStatus(uint8_t CurrentStatus)\r
-{\r
- uint8_t LEDMask = LEDS_NO_LEDS;\r
- \r
- /* Set the LED mask to the appropriate LED mask based on the given status code */\r
- switch (CurrentStatus)\r
- {\r
- case Status_USBNotReady:\r
- LEDMask = (LEDS_LED1);\r
- break;\r
- case Status_USBEnumerating:\r
- LEDMask = (LEDS_LED1 | LEDS_LED2);\r
- break;\r
- case Status_USBReady:\r
- LEDMask = (LEDS_LED2 | LEDS_LED4);\r
- break;\r
- }\r
- \r
- /* Set the board LEDs to the new LED mask */\r
- LEDs_SetAllLEDs(LEDMask);\r
-}\r
-\r
-/** Function to manage HID report generation and transmission to the host. */\r
-TASK(USB_Joystick_Report)\r
-{\r
- /* Check if the USB System is connected to a Host */\r
- if (USB_IsConnected)\r
- {\r
- /* Select the Joystick Report Endpoint */\r
- Endpoint_SelectEndpoint(JOYSTICK_EPNUM);\r
-\r
- /* Check if Joystick Endpoint Ready for Read/Write */\r
- if (Endpoint_ReadWriteAllowed())\r
- {\r
- USB_JoystickReport_Data_t JoystickReportData;\r
- \r
- /* Create the next HID report to send to the host */\r
- GetNextReport(&JoystickReportData);\r
- \r
- /* Write Joystick Report Data */\r
- Endpoint_Write_Stream_LE(&JoystickReportData, sizeof(JoystickReportData));\r
-\r
- /* Finalize the stream transfer to send the last packet */\r
- Endpoint_ClearCurrentBank();\r
- \r
- /* Clear the report data afterwards */\r
- JoystickReportData.X = 0;\r
- JoystickReportData.Y = 0;\r
- JoystickReportData.Button = 0;\r
- }\r
- }\r
-}\r
projects / pub / lufa.git / blobdiff