X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/2793c88fc601dcc7ec4961326dd9748a20f3ec83..33a018474913701fa9ef8e962acf58accd1184d2:/Demos/Device/LowLevel/CDC/CDC.c diff --git a/Demos/Device/LowLevel/CDC/CDC.c b/Demos/Device/LowLevel/CDC/CDC.c index d7ebb9e6b..3db4c1e55 100644 --- a/Demos/Device/LowLevel/CDC/CDC.c +++ b/Demos/Device/LowLevel/CDC/CDC.c @@ -36,13 +36,6 @@ #include "CDC.h" -/* 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 @@ -57,26 +50,25 @@ CDC_Line_Coding_t LineCoding = { .BaudRateBPS = 9600, .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 downward. */ -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. +/** Main program entry point. This routine contains the overall program flow, including initial + * setup of all components and the main program loop. */ int main(void) { + SetupHardware(); + + LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); + + for (;;) + { + CDC_Task(); + USB_USBTask(); + } +} + +/** Configures the board hardware and chip peripherals for the demo's functionality. */ +void SetupHardware(void) +{ /* Disable watchdog if enabled by bootloader/fuses */ MCUSR &= ~(1 << WDRF); wdt_disable(); @@ -87,18 +79,7 @@ int main(void) /* 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 @@ -106,11 +87,8 @@ int main(void) */ void EVENT_USB_Connect(void) { - /* Start USB management task */ - Scheduler_SetTaskMode(USB_USBTask, TASK_RUN); - /* Indicate USB enumerating */ - UpdateStatus(Status_USBEnumerating); + LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); } /** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via @@ -118,12 +96,8 @@ void EVENT_USB_Connect(void) */ void EVENT_USB_Disconnect(void) { - /* 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); + LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); } /** Event handler for the USB_ConfigurationChanged event. This is fired when the host set the current configuration @@ -145,10 +119,7 @@ void EVENT_USB_ConfigurationChanged(void) ENDPOINT_BANK_SINGLE); /* Indicate USB connected and ready */ - UpdateStatus(Status_USBReady); - - /* Start CDC task */ - Scheduler_SetTaskMode(CDC_Task, TASK_RUN); + LEDs_SetAllLEDs(LEDMASK_USB_READY); } /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific @@ -210,39 +181,21 @@ void EVENT_USB_UnhandledControlPacket(void) } } -/** 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) +void CDC_Task(void) { char* ReportString = NULL; uint8_t JoyStatus_LCL = Joystick_GetStatus(); static bool ActionSent = false; + + char* JoystickStrings[] = + { + "Joystick Up\r\n", + "Joystick Down\r\n", + "Joystick Left\r\n", + "Joystick Right\r\n", + "Joystick Pressed\r\n", + }; #if 0 /* NOTE: Here you can use the notification endpoint to send back line state changes to the host, for the special RS-232 @@ -269,15 +222,15 @@ TASK(CDC_Task) /* Determine if a joystick action has occurred */ if (JoyStatus_LCL & JOY_UP) - ReportString = JoystickUpString; + ReportString = JoystickStrings[0]; else if (JoyStatus_LCL & JOY_DOWN) - ReportString = JoystickDownString; + ReportString = JoystickStrings[1]; else if (JoyStatus_LCL & JOY_LEFT) - ReportString = JoystickLeftString; + ReportString = JoystickStrings[2]; else if (JoyStatus_LCL & JOY_RIGHT) - ReportString = JoystickRightString; + ReportString = JoystickStrings[3]; else if (JoyStatus_LCL & JOY_PRESS) - ReportString = JoystickPressedString; + ReportString = JoystickStrings[4]; /* Flag management - Only allow one string to be sent per action */ if (ReportString == NULL)