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@ -36,14 +36,6 @@
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#include "DualCDC.h"
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/* Scheduler Task List */
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TASK_LIST
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{
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{ .Task = USB_USBTask , .TaskStatus = TASK_STOP },
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{ .Task = CDC1_Task , .TaskStatus = TASK_STOP },
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{ .Task = CDC2_Task , .TaskStatus = TASK_STOP },
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};
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/* Globals: */
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/** Contains the current baud rate and other settings of the first virtual serial port. While this demo does not use
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* the physical USART and thus does not use these settings, they must still be retained and returned to the host
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@ -70,26 +62,24 @@ CDC_Line_Coding_t LineCoding2 = { .BaudRateBPS = 9600,
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.CharFormat = OneStopBit,
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.ParityType = Parity_None,
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.DataBits = 8 };
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/** String to print through the first virtual serial port when the joystick is pressed upwards. */
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char JoystickUpString[] = "Joystick Up\r\n";
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/** String to print through the first virtual serial port when the joystick is pressed downward. */
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char JoystickDownString[] = "Joystick Down\r\n";
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/** String to print through the first virtual serial port when the joystick is pressed left. */
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char JoystickLeftString[] = "Joystick Left\r\n";
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/** String to print through the first virtual serial port when the joystick is pressed right. */
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char JoystickRightString[] = "Joystick Right\r\n";
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/** String to print through the first virtual serial port when the joystick is pressed inwards. */
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char JoystickPressedString[] = "Joystick Pressed\r\n";
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/** Main program entry point. This routine configures the hardware required by the application, then
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* starts the scheduler to run the application tasks.
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*/
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int main(void)
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{
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SetupHardware();
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for (;;)
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{
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CDC1_Task();
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CDC2_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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/* Disable watchdog if enabled by bootloader/fuses */
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MCUSR &= ~(1 << WDRF);
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@ -101,18 +91,7 @@ int main(void)
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/* Hardware Initialization */
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Joystick_Init();
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LEDs_Init();
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/* Indicate USB not ready */
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UpdateStatus(Status_USBNotReady);
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/* Initialize Scheduler so that it can be used */
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Scheduler_Init();
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/* Initialize USB Subsystem */
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USB_Init();
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/* Scheduling - routine never returns, so put this last in the main function */
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Scheduler_Start();
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}
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/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs and
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@ -120,11 +99,8 @@ int main(void)
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*/
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void EVENT_USB_Connect(void)
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{
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/* Start USB management task */
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Scheduler_SetTaskMode(USB_USBTask, TASK_RUN);
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/* Indicate USB enumerating */
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UpdateStatus(Status_USBEnumerating);
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LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
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}
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/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via
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@ -132,13 +108,8 @@ void EVENT_USB_Connect(void)
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*/
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void EVENT_USB_Disconnect(void)
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{
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/* Stop running CDC and USB management tasks */
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Scheduler_SetTaskMode(CDC1_Task, TASK_STOP);
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Scheduler_SetTaskMode(CDC2_Task, TASK_STOP);
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Scheduler_SetTaskMode(USB_USBTask, TASK_STOP);
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/* Indicate USB not ready */
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UpdateStatus(Status_USBNotReady);
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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}
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/** Event handler for the USB_ConfigurationChanged event. This is fired when the host set the current configuration
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@ -173,11 +144,7 @@ void EVENT_USB_ConfigurationChanged(void)
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ENDPOINT_BANK_SINGLE);
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/* Indicate USB connected and ready */
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UpdateStatus(Status_USBReady);
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/* Start CDC tasks */
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Scheduler_SetTaskMode(CDC1_Task, TASK_RUN);
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Scheduler_SetTaskMode(CDC2_Task, TASK_RUN);
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LEDs_SetAllLEDs(LEDMASK_USB_READY);
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}
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/** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific
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@ -235,53 +202,35 @@ void EVENT_USB_UnhandledControlPacket(void)
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}
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}
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/** Function to manage status updates to the user. This is done via LEDs on the given board, if available, but may be changed to
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* log to a serial port, or anything else that is suitable for status updates.
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*
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* \param CurrentStatus Current status of the system, from the DualCDC_StatusCodes_t enum
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*/
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void UpdateStatus(uint8_t CurrentStatus)
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{
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uint8_t LEDMask = LEDS_NO_LEDS;
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/* Set the LED mask to the appropriate LED mask based on the given status code */
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switch (CurrentStatus)
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{
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case Status_USBNotReady:
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LEDMask = (LEDS_LED1);
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break;
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case Status_USBEnumerating:
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LEDMask = (LEDS_LED1 | LEDS_LED2);
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break;
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case Status_USBReady:
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LEDMask = (LEDS_LED2 | LEDS_LED4);
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break;
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}
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/* Set the board LEDs to the new LED mask */
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LEDs_SetAllLEDs(LEDMask);
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}
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/** Function to manage CDC data transmission and reception to and from the host for the first CDC interface, which sends joystick
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* movements to the host as ASCII strings.
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*/
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TASK(CDC1_Task)
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void CDC1_Task(void)
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{
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char* ReportString = NULL;
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uint8_t JoyStatus_LCL = Joystick_GetStatus();
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static bool ActionSent = false;
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char* JoystickStrings[] =
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{
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"Joystick Up\r\n",
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"Joystick Down\r\n",
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"Joystick Left\r\n",
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"Joystick Right\r\n",
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"Joystick Pressed\r\n",
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};
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/* Determine if a joystick action has occurred */
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if (JoyStatus_LCL & JOY_UP)
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ReportString = JoystickUpString;
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ReportString = JoystickStrings[0];
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else if (JoyStatus_LCL & JOY_DOWN)
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ReportString = JoystickDownString;
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ReportString = JoystickStrings[1];
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else if (JoyStatus_LCL & JOY_LEFT)
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ReportString = JoystickLeftString;
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ReportString = JoystickStrings[2];
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else if (JoyStatus_LCL & JOY_RIGHT)
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ReportString = JoystickRightString;
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ReportString = JoystickStrings[3];
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else if (JoyStatus_LCL & JOY_PRESS)
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ReportString = JoystickPressedString;
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ReportString = JoystickStrings[4];
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/* Flag management - Only allow one string to be sent per action */
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if (ReportString == NULL)
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@ -319,7 +268,7 @@ TASK(CDC1_Task)
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/** Function to manage CDC data transmission and reception to and from the host for the second CDC interface, which echoes back
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* all data sent to it from the host.
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*/
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TASK(CDC2_Task)
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void CDC2_Task(void)
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{
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/* Select the Serial Rx Endpoint */
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Endpoint_SelectEndpoint(CDC2_RX_EPNUM);
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Dean Camera
16 years ago