X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/ecf7538430c01b95104682f0f7493e57b9168125..ed031c1df2f5b053b9cd9f48c63e66a42b7c049e:/Demos/DualCDC/DualCDC.c?ds=inline diff --git a/Demos/DualCDC/DualCDC.c b/Demos/DualCDC/DualCDC.c deleted file mode 100644 index 3c598da42..000000000 --- a/Demos/DualCDC/DualCDC.c +++ /dev/null @@ -1,359 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2009. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, and distribute this software - and its documentation for any purpose and without fee is hereby - granted, 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 DualCDC demo. This file contains the main tasks of the demo and - * is responsible for the initial application hardware configuration. - */ - -#include "DualCDC.h" - -/* Project Tags, for reading out using the ButtLoad project */ -BUTTLOADTAG(ProjName, "LUFA DualCDC App"); -BUTTLOADTAG(BuildTime, __TIME__); -BUTTLOADTAG(BuildDate, __DATE__); -BUTTLOADTAG(LUFAVersion, "LUFA V" LUFA_VERSION_STRING); - -/* Scheduler Task List */ -TASK_LIST -{ - { Task: USB_USBTask , TaskStatus: TASK_STOP }, - { Task: CDC1_Task , TaskStatus: TASK_STOP }, - { Task: CDC2_Task , TaskStatus: TASK_STOP }, -}; - -/* Globals: */ -/** Contains the current baud rate and other settings of the first virtual serial port. While this demo does not use - * the physical USART and thus does not use these settings, they must still be retained and returned to the host - * upon request or the host will assume the device is non-functional. - * - * These values are set by the host via a class-specific request, however they are not required to be used accurately. - * It is possible to completely ignore these value or use other settings as the host is completely unaware of the physical - * serial link characteristics and instead sends and recieves data in endpoint streams. - */ -CDC_Line_Coding_t LineCoding1 = { BaudRateBPS: 9600, - CharFormat: OneStopBit, - ParityType: Parity_None, - DataBits: 8 }; - -/** Contains the current baud rate and other settings of the second virtual serial port. While this demo does not use - * the physical USART and thus does not use these settings, they must still be retained and returned to the host - * upon request or the host will assume the device is non-functional. - * - * These values are set by the host via a class-specific request, however they are not required to be used accurately. - * It is possible to completely ignore these value or use other settings as the host is completely unaware of the physical - * serial link characteristics and instead sends and recieves data in endpoint streams. - */ -CDC_Line_Coding_t LineCoding2 = { BaudRateBPS: 9600, - CharFormat: OneStopBit, - ParityType: Parity_None, - DataBits: 8 }; - -/** String to print through the first virtual serial port when the joystick is pressed upwards. */ -char JoystickUpString[] = "Joystick Up\r\n"; - -/** String to print through the first virtual serial port when the joystick is pressed downwards. */ -char JoystickDownString[] = "Joystick Down\r\n"; - -/** String to print through the first virtual serial port when the joystick is pressed left. */ -char JoystickLeftString[] = "Joystick Left\r\n"; - -/** String to print through the first virtual serial port when the joystick is pressed right. */ -char JoystickRightString[] = "Joystick Right\r\n"; - -/** String to print through the first virtual serial port when the joystick is pressed inwards. */ -char JoystickPressedString[] = "Joystick Pressed\r\n"; - -/** Main program entry point. This routine configures the hardware required by the application, then - * starts the scheduler to run the application tasks. - */ -int main(void) -{ - /* Disable watchdog if enabled by bootloader/fuses */ - MCUSR &= ~(1 << WDRF); - wdt_disable(); - - /* Disable clock division */ - clock_prescale_set(clock_div_1); - - /* Hardware Initialization */ - Joystick_Init(); - LEDs_Init(); - - /* Indicate USB not ready */ - UpdateStatus(Status_USBNotReady); - - /* Initialize Scheduler so that it can be used */ - Scheduler_Init(); - - /* Initialize USB Subsystem */ - USB_Init(); - - /* Scheduling - routine never returns, so put this last in the main function */ - Scheduler_Start(); -} - -/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs and - * starts the library USB task to begin the enumeration and USB management process. - */ -EVENT_HANDLER(USB_Connect) -{ - /* Start USB management task */ - Scheduler_SetTaskMode(USB_USBTask, TASK_RUN); - - /* Indicate USB enumerating */ - UpdateStatus(Status_USBEnumerating); -} - -/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via - * the status LEDs and stops the USB management and CDC management tasks. - */ -EVENT_HANDLER(USB_Disconnect) -{ - /* Stop running CDC and USB management tasks */ - Scheduler_SetTaskMode(CDC1_Task, TASK_STOP); - Scheduler_SetTaskMode(CDC2_Task, TASK_STOP); - Scheduler_SetTaskMode(USB_USBTask, TASK_STOP); - - /* Indicate USB not ready */ - UpdateStatus(Status_USBNotReady); -} - -/** Event handler for the USB_ConfigurationChanged event. This is fired when the host set the current configuration - * of the USB device after enumeration - the device endpoints are configured and the CDC management tasks are started. - */ -EVENT_HANDLER(USB_ConfigurationChanged) -{ - /* Setup CDC Notification, Rx and Tx Endpoints for the first CDC */ - Endpoint_ConfigureEndpoint(CDC1_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT, - ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE, - ENDPOINT_BANK_SINGLE); - - Endpoint_ConfigureEndpoint(CDC1_TX_EPNUM, EP_TYPE_BULK, - ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE, - ENDPOINT_BANK_SINGLE); - - Endpoint_ConfigureEndpoint(CDC1_RX_EPNUM, EP_TYPE_BULK, - ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE, - ENDPOINT_BANK_SINGLE); - - /* Setup CDC Notification, Rx and Tx Endpoints for the second CDC */ - Endpoint_ConfigureEndpoint(CDC2_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT, - ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE, - ENDPOINT_BANK_SINGLE); - - Endpoint_ConfigureEndpoint(CDC2_TX_EPNUM, EP_TYPE_BULK, - ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE, - ENDPOINT_BANK_SINGLE); - - Endpoint_ConfigureEndpoint(CDC2_RX_EPNUM, EP_TYPE_BULK, - ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE, - ENDPOINT_BANK_SINGLE); - - /* Indicate USB connected and ready */ - UpdateStatus(Status_USBReady); - - /* Start CDC tasks */ - Scheduler_SetTaskMode(CDC1_Task, TASK_RUN); - Scheduler_SetTaskMode(CDC2_Task, TASK_RUN); -} - -/** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific - * control requests that are not handled internally by the USB library (including the CDC control commands, - * which are all issued via the control endpoint), so that they can be handled appropriately for the application. - */ -EVENT_HANDLER(USB_UnhandledControlPacket) -{ - uint8_t* LineCodingData; - - /* Discard the unused wValue parameter */ - Endpoint_Ignore_Word(); - - /* wIndex indicates the interface being controlled */ - uint16_t wIndex = Endpoint_Read_Word_LE(); - - /* Determine which interface's Line Coding data is being set from the wIndex parameter */ - LineCodingData = (wIndex == 0) ? (uint8_t*)&LineCoding1 : (uint8_t*)&LineCoding2; - - /* Process CDC specific control requests */ - switch (bRequest) - { - case REQ_GetLineEncoding: - if (bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)) - { - /* Acknowledge the SETUP packet, ready for data transfer */ - Endpoint_ClearSetupReceived(); - - /* Write the line coding data to the control endpoint */ - Endpoint_Write_Control_Stream_LE(LineCodingData, sizeof(CDC_Line_Coding_t)); - - /* Finalize the stream transfer to send the last packet or clear the host abort */ - Endpoint_ClearSetupOUT(); - } - - break; - case REQ_SetLineEncoding: - if (bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) - { - /* Acknowledge the SETUP packet, ready for data transfer */ - Endpoint_ClearSetupReceived(); - - /* Read the line coding data in from the host into the global struct */ - Endpoint_Read_Control_Stream_LE(LineCodingData, sizeof(CDC_Line_Coding_t)); - - /* Finalize the stream transfer to clear the last packet from the host */ - Endpoint_ClearSetupIN(); - } - - break; - case REQ_SetControlLineState: - if (bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) - { - /* Acknowledge the SETUP packet, ready for data transfer */ - Endpoint_ClearSetupReceived(); - - /* Acknowledge status stage */ - while (!(Endpoint_IsSetupINReady())); - Endpoint_ClearSetupIN(); - } - - break; - } -} - -/** Function to manage status updates to the user. This is done via LEDs on the given board, if available, but may be changed to - * log to a serial port, or anything else that is suitable for status updates. - * - * \param CurrentStatus Current status of the system, from the DualCDC_StatusCodes_t enum - */ -void UpdateStatus(uint8_t CurrentStatus) -{ - uint8_t LEDMask = LEDS_NO_LEDS; - - /* Set the LED mask to the appropriate LED mask based on the given status code */ - switch (CurrentStatus) - { - case Status_USBNotReady: - LEDMask = (LEDS_LED1); - break; - case Status_USBEnumerating: - LEDMask = (LEDS_LED1 | LEDS_LED2); - break; - case Status_USBReady: - LEDMask = (LEDS_LED2 | LEDS_LED4); - break; - } - - /* Set the board LEDs to the new LED mask */ - LEDs_SetAllLEDs(LEDMask); -} - -/** Function to manage CDC data transmission and reception to and from the host for the first CDC interface, which sends joystick - * movements to the host as ASCII strings. - */ -TASK(CDC1_Task) -{ - char* ReportString = NULL; - uint8_t JoyStatus_LCL = Joystick_GetStatus(); - static bool ActionSent = false; - - /* Determine if a joystick action has occurred */ - if (JoyStatus_LCL & JOY_UP) - ReportString = JoystickUpString; - else if (JoyStatus_LCL & JOY_DOWN) - ReportString = JoystickDownString; - else if (JoyStatus_LCL & JOY_LEFT) - ReportString = JoystickLeftString; - else if (JoyStatus_LCL & JOY_RIGHT) - ReportString = JoystickRightString; - else if (JoyStatus_LCL & JOY_PRESS) - ReportString = JoystickPressedString; - - /* Flag management - Only allow one string to be sent per action */ - if (ReportString == NULL) - { - ActionSent = false; - } - else if (ActionSent == false) - { - ActionSent = true; - - /* Select the Serial Tx Endpoint */ - Endpoint_SelectEndpoint(CDC1_TX_EPNUM); - - /* Write the String to the Endpoint */ - Endpoint_Write_Stream_LE(ReportString, strlen(ReportString)); - - /* Finalize the stream transfer to send the last packet */ - Endpoint_ClearCurrentBank(); - } - - /* Select the Serial Rx Endpoint */ - Endpoint_SelectEndpoint(CDC1_RX_EPNUM); - - /* Throw away any received data from the host */ - if (Endpoint_ReadWriteAllowed()) - Endpoint_ClearCurrentBank(); -} - -/** Function to manage CDC data transmission and reception to and from the host for the second CDC interface, which echos back - * all data sent to it from the host. - */ -TASK(CDC2_Task) -{ - /* Select the Serial Rx Endpoint */ - Endpoint_SelectEndpoint(CDC2_RX_EPNUM); - - /* Check to see if any data has been received */ - if (Endpoint_ReadWriteAllowed()) - { - /* Create a temp buffer big enough to hold the incomming endpoint packet */ - uint8_t Buffer[Endpoint_BytesInEndpoint()]; - - /* Remember how large the incomming packet is */ - uint16_t DataLength = Endpoint_BytesInEndpoint(); - - /* Read in the incomming packet into the buffer */ - Endpoint_Read_Stream_LE(&Buffer, DataLength); - - /* Finalize the stream transfer to send the last packet */ - Endpoint_ClearCurrentBank(); - - /* Select the Serial Tx Endpoint */ - Endpoint_SelectEndpoint(CDC2_TX_EPNUM); - - /* Write the received data to the endpoint */ - Endpoint_Write_Stream_LE(&Buffer, DataLength); - - /* Finalize the stream transfer to send the last packet */ - Endpoint_ClearCurrentBank(); - } -}