this software.\r
*/\r
\r
-/** \file\r
- *\r
- * Main source file for the CDC demo. This file contains the main tasks of the demo and\r
- * is responsible for the initial application hardware configuration.\r
- */\r
-\r
#include "CDC.h"\r
\r
-/* Scheduler Task List */\r
-TASK_LIST\r
-{\r
- { .Task = USB_USBTask , .TaskStatus = TASK_STOP },\r
- { .Task = CDC_Task , .TaskStatus = TASK_STOP },\r
-};\r
+USB_ClassInfo_CDC_t VirtualSerial_CDC_Interface =\r
+ {\r
+ .ControlInterfaceNumber = 0,\r
\r
-/* Globals: */\r
-/** Contains the current baud rate and other settings of the virtual serial port. While this demo does not use\r
- * the physical USART and thus does not use these settings, they must still be retained and returned to the host\r
- * upon request or the host will assume the device is non-functional.\r
- *\r
- * These values are set by the host via a class-specific request, however they are not required to be used accurately.\r
- * It is possible to completely ignore these value or use other settings as the host is completely unaware of the physical\r
- * serial link characteristics and instead sends and receives data in endpoint streams.\r
- */\r
-CDC_Line_Coding_t LineCoding = { .BaudRateBPS = 9600,\r
- .CharFormat = OneStopBit,\r
- .ParityType = Parity_None,\r
- .DataBits = 8 };\r
+ .DataINEndpointNumber = CDC_TX_EPNUM,\r
+ .DataINEndpointSize = CDC_TXRX_EPSIZE,\r
\r
-/** String to print through the virtual serial port when the joystick is pressed upwards. */\r
-char JoystickUpString[] = "Joystick Up\r\n";\r
+ .DataOUTEndpointNumber = CDC_RX_EPNUM,\r
+ .DataOUTEndpointSize = CDC_TXRX_EPSIZE,\r
\r
-/** String to print through the virtual serial port when the joystick is pressed downward. */\r
-char JoystickDownString[] = "Joystick Down\r\n";\r
+ .NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM,\r
+ .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE,\r
+ };\r
\r
-/** String to print through the virtual serial port when the joystick is pressed left. */\r
-char JoystickLeftString[] = "Joystick Left\r\n";\r
+int main(void)\r
+{\r
+ SetupHardware();\r
+ \r
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
\r
-/** String to print through the virtual serial port when the joystick is pressed right. */\r
-char JoystickRightString[] = "Joystick Right\r\n";\r
+ for (;;)\r
+ {\r
+ CheckJoystickMovement();\r
+ \r
+ uint16_t BytesToDiscard = USB_CDC_BytesReceived(&VirtualSerial_CDC_Interface);\r
+ while (BytesToDiscard--)\r
+ USB_CDC_ReceiveByte(&VirtualSerial_CDC_Interface);\r
\r
-/** String to print through the virtual serial port when the joystick is pressed inwards. */\r
-char JoystickPressedString[] = "Joystick Pressed\r\n";\r
+ USB_CDC_USBTask(&VirtualSerial_CDC_Interface);\r
+ USB_USBTask();\r
+ }\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
+void SetupHardware(void)\r
{\r
/* Disable watchdog if enabled by bootloader/fuses */\r
MCUSR &= ~(1 << WDRF);\r
/* Hardware Initialization */\r
Joystick_Init();\r
LEDs_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
-void EVENT_USB_Connect(void)\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 CDC management tasks.\r
- */\r
-void EVENT_USB_Disconnect(void)\r
-{\r
- /* Stop running CDC and USB management tasks */\r
- Scheduler_SetTaskMode(CDC_Task, 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 CDC management task started.\r
- */\r
-void EVENT_USB_ConfigurationChanged(void)\r
-{\r
- /* Setup CDC Notification, Rx and Tx Endpoints */\r
- Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,\r
- ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,\r
- ENDPOINT_BANK_SINGLE);\r
-\r
- Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,\r
- ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,\r
- ENDPOINT_BANK_SINGLE);\r
-\r
- Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,\r
- ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,\r
- ENDPOINT_BANK_SINGLE);\r
-\r
- /* Indicate USB connected and ready */\r
- UpdateStatus(Status_USBReady);\r
- \r
- /* Start CDC task */\r
- Scheduler_SetTaskMode(CDC_Task, 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 CDC control commands,\r
- * which are all issued via the control endpoint), so that they can be handled appropriately for the application.\r
- */\r
-void EVENT_USB_UnhandledControlPacket(void)\r
-{\r
- uint8_t* LineCodingData = (uint8_t*)&LineCoding;\r
-\r
- /* Process CDC specific control requests */\r
- switch (USB_ControlRequest.bRequest)\r
- {\r
- case REQ_GetLineEncoding:\r
- if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))\r
- { \r
- /* Acknowledge the SETUP packet, ready for data transfer */\r
- Endpoint_ClearSETUP();\r
-\r
- /* Write the line coding data to the control endpoint */\r
- Endpoint_Write_Control_Stream_LE(LineCodingData, sizeof(CDC_Line_Coding_t));\r
- \r
- /* Finalize the stream transfer to send the last packet or clear the host abort */\r
- Endpoint_ClearOUT();\r
- }\r
- \r
- break;\r
- case REQ_SetLineEncoding:\r
- if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))\r
- {\r
- /* Acknowledge the SETUP packet, ready for data transfer */\r
- Endpoint_ClearSETUP();\r
-\r
- /* Read the line coding data in from the host into the global struct */\r
- Endpoint_Read_Control_Stream_LE(LineCodingData, sizeof(CDC_Line_Coding_t));\r
-\r
- /* Finalize the stream transfer to clear the last packet from the host */\r
- Endpoint_ClearIN();\r
- }\r
- \r
- break;\r
- case REQ_SetControlLineState:\r
- if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))\r
- {\r
- /* Acknowledge the SETUP packet, ready for data transfer */\r
- Endpoint_ClearSETUP();\r
- \r
- /* NOTE: Here you can read in the line state mask from the host, to get the current state of the output handshake\r
- lines. The mask is read in from the wValue parameter in USB_ControlRequest, and can be masked against the\r
- CONTROL_LINE_OUT_* masks to determine the RTS and DTR line states using the following code:\r
- */\r
- \r
- /* Acknowledge status stage */\r
- while (!(Endpoint_IsINReady()));\r
- Endpoint_ClearIN();\r
- }\r
- \r
- break;\r
- }\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 CDC_StatusCodes_t enum\r
- */\r
-void UpdateStatus(uint8_t CurrentStatus)\r
+void CheckJoystickMovement(void)\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
+ uint8_t JoyStatus_LCL = Joystick_GetStatus();\r
+ char* ReportString = NULL;\r
+ static bool ActionSent = false;\r
\r
- /* Set the board LEDs to the new LED mask */\r
- LEDs_SetAllLEDs(LEDMask);\r
-}\r
-\r
-/** Function to manage CDC data transmission and reception to and from the host. */\r
-TASK(CDC_Task)\r
-{\r
- char* ReportString = NULL;\r
- uint8_t JoyStatus_LCL = Joystick_GetStatus();\r
- static bool ActionSent = false;\r
- \r
-#if 0\r
- /* NOTE: Here you can use the notification endpoint to send back line state changes to the host, for the special RS-232\r
- handshake signal lines (and some error states), via the CONTROL_LINE_IN_* masks and the following code:\r
- */\r
- USB_Notification_Header_t Notification = (USB_Notification_Header_t)\r
+ char* JoystickStrings[] =\r
{\r
- .NotificationType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),\r
- .Notification = NOTIF_SerialState,\r
- .wValue = 0,\r
- .wIndex = 0,\r
- .wLength = sizeof(uint16_t),\r
+ "Joystick Up\r\n",\r
+ "Joystick Down\r\n",\r
+ "Joystick Left\r\n",\r
+ "Joystick Right\r\n",\r
+ "Joystick Pressed\r\n",\r
};\r
- \r
- uint16_t LineStateMask;\r
- \r
- // Set LineStateMask here to a mask of CONTROL_LINE_IN_* masks to set the input handshake line states to send to the host\r
- \r
- Endpoint_SelectEndpoint(CDC_NOTIFICATION_EPNUM);\r
- Endpoint_Write_Stream_LE(&Notification, sizeof(Notification));\r
- Endpoint_Write_Stream_LE(&LineStateMask, sizeof(LineStateMask));\r
- Endpoint_ClearIN();\r
-#endif\r
\r
- /* Determine if a joystick action has occurred */\r
if (JoyStatus_LCL & JOY_UP)\r
- ReportString = JoystickUpString;\r
+ ReportString = JoystickStrings[0];\r
else if (JoyStatus_LCL & JOY_DOWN)\r
- ReportString = JoystickDownString;\r
+ ReportString = JoystickStrings[1];\r
else if (JoyStatus_LCL & JOY_LEFT)\r
- ReportString = JoystickLeftString;\r
+ ReportString = JoystickStrings[2];\r
else if (JoyStatus_LCL & JOY_RIGHT)\r
- ReportString = JoystickRightString;\r
+ ReportString = JoystickStrings[3];\r
else if (JoyStatus_LCL & JOY_PRESS)\r
- ReportString = JoystickPressedString;\r
-\r
- /* Flag management - Only allow one string to be sent per action */\r
- if (ReportString == NULL)\r
- {\r
- ActionSent = false;\r
- }\r
- else if (ActionSent == false)\r
+ ReportString = JoystickStrings[4];\r
+ else\r
+ ActionSent = false;\r
+ \r
+ if ((ReportString != NULL) && (ActionSent == false))\r
{\r
ActionSent = true;\r
+ \r
+ USB_CDC_SendString(&VirtualSerial_CDC_Interface, ReportString, strlen(ReportString)); \r
+ }\r
+}\r
\r
- /* Select the Serial Tx Endpoint */\r
- Endpoint_SelectEndpoint(CDC_TX_EPNUM);\r
+void EVENT_USB_Connect(void)\r
+{\r
+ LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
+}\r
\r
- /* Write the String to the Endpoint */\r
- Endpoint_Write_Stream_LE(ReportString, strlen(ReportString));\r
- \r
- /* Remember if the packet to send completely fills the endpoint */\r
- bool IsFull = (Endpoint_BytesInEndpoint() == CDC_TXRX_EPSIZE);\r
+void EVENT_USB_Disconnect(void)\r
+{\r
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
+}\r
\r
- /* Finalize the stream transfer to send the last packet */\r
- Endpoint_ClearIN();\r
+void EVENT_USB_ConfigurationChanged(void)\r
+{\r
+ LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
\r
- /* If the last packet filled the endpoint, send an empty packet to release the buffer on \r
- * the receiver (otherwise all data will be cached until a non-full packet is received) */\r
- if (IsFull)\r
- {\r
- /* Wait until the endpoint is ready for another packet */\r
- while (!(Endpoint_IsINReady()));\r
- \r
- /* Send an empty packet to ensure that the host does not buffer data sent to it */\r
- Endpoint_ClearIN();\r
- }\r
- }\r
+ if (!(USB_CDC_ConfigureEndpoints(&VirtualSerial_CDC_Interface)))\r
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+}\r
\r
- /* Select the Serial Rx Endpoint */\r
- Endpoint_SelectEndpoint(CDC_RX_EPNUM);\r
- \r
- /* Throw away any received data from the host */\r
- if (Endpoint_IsOUTReceived())\r
- Endpoint_ClearOUT();\r
+void EVENT_USB_UnhandledControlPacket(void)\r
+{\r
+ USB_CDC_ProcessControlPacket(&VirtualSerial_CDC_Interface);\r
}\r
projects / pub / USBasp.git / blobdiff