diff options
Diffstat (limited to 'Demos/CDC/CDC.c')
| -rw-r--r-- | Demos/CDC/CDC.c | 319 |
1 files changed, 0 insertions, 319 deletions
diff --git a/Demos/CDC/CDC.c b/Demos/CDC/CDC.c deleted file mode 100644 index 6e933d581..000000000 --- a/Demos/CDC/CDC.c +++ /dev/null @@ -1,319 +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 CDC demo. This file contains the main tasks of the demo and
- * is responsible for the initial application hardware configuration.
- */
-
-#include "CDC.h"
-
-/* Project Tags, for reading out using the ButtLoad project */
-BUTTLOADTAG(ProjName, "LUFA CDC 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: CDC_Task , TaskStatus: TASK_STOP },
-};
-
-/* Globals: */
-/** Contains the current baud rate and other settings of the 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 LineCoding = { BaudRateBPS: 9600,
- CharFormat: OneStopBit,
- ParityType: Parity_None,
- DataBits: 8 };
-
-/** String to print through the virtual serial port when the joystick is pressed upwards. */
-char JoystickUpString[] = "Joystick Up\r\n";
-
-/** String to print through the virtual serial port when the joystick is pressed downwards. */
-char JoystickDownString[] = "Joystick Down\r\n";
-
-/** String to print through the virtual serial port when the joystick is pressed left. */
-char JoystickLeftString[] = "Joystick Left\r\n";
-
-/** String to print through the virtual serial port when the joystick is pressed right. */
-char JoystickRightString[] = "Joystick Right\r\n";
-
-/** String to print through the 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(CDC_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 task started.
- */
-EVENT_HANDLER(USB_ConfigurationChanged)
-{
- /* Setup CDC Notification, Rx and Tx Endpoints */
- Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,
- ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,
- ENDPOINT_BANK_SINGLE);
-
- Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,
- ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,
- ENDPOINT_BANK_SINGLE);
-
- Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,
- ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,
- ENDPOINT_BANK_SINGLE);
-
- /* Indicate USB connected and ready */
- UpdateStatus(Status_USBReady);
-
- /* Start CDC task */
- Scheduler_SetTaskMode(CDC_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 = (uint8_t*)&LineCoding;
-
- /* 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))
- {
-#if 0
- /* NOTE: Here you can read in the line state mask from the host, to get the current state of the output handshake
- lines. The mask is read in from the wValue parameter, and can be masked against the CONTROL_LINE_OUT_* masks
- to determine the RTS and DTR line states using the following code:
- */
-
- uint16_t wIndex = Endpoint_Read_Word_LE();
-
- // Do something with the given line states in wIndex
-#endif
-
- /* 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 CDC_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. */
-TASK(CDC_Task)
-{
- char* ReportString = NULL;
- uint8_t JoyStatus_LCL = Joystick_GetStatus();
- static bool ActionSent = false;
-
-#if 0
- /* NOTE: Here you can use the notification endpoint to send back line state changes to the host, for the special RS-232
- handshake signal lines (and some error states), via the CONTROL_LINE_IN_* masks and the following code:
- */
- USB_Notification_Header_t Notification = (USB_Notification_Header_t)
- {
- NotificationType: (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
- Notification: NOTIF_SerialState,
- wValue: 0,
- wIndex: 0,
- wLength: sizeof(uint16_t),
- };
-
- uint16_t LineStateMask;
-
- // Set LineStateMask here to a mask of CONTROL_LINE_IN_* masks to set the input handshake line states to send to the host
-
- Endpoint_SelectEndpoint(CDC_NOTIFICATION_EPNUM);
- Endpoint_Write_Stream_LE(&Notification, sizeof(Notification));
- Endpoint_Write_Stream_LE(&LineStateMask, sizeof(LineStateMask));
- Endpoint_ClearCurrentBank();
-#endif
-
- /* 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(CDC_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(CDC_RX_EPNUM);
-
- /* Throw away any received data from the host */
- if (Endpoint_ReadWriteAllowed())
- Endpoint_ClearCurrentBank();
-}
|