X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/b9b03aadb219d06fbad9d110e508db93e45461af..b9dd51cd632c1a8cff18f77b4f09c33bdf804768:/Demos/Device/LowLevel/DualCDC/DualCDC.c diff --git a/Demos/Device/LowLevel/DualCDC/DualCDC.c b/Demos/Device/LowLevel/DualCDC/DualCDC.c index 34d772ff0..dd278d535 100644 --- a/Demos/Device/LowLevel/DualCDC/DualCDC.c +++ b/Demos/Device/LowLevel/DualCDC/DualCDC.c @@ -36,14 +36,6 @@ #include "DualCDC.h" -/* 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 @@ -70,27 +62,25 @@ 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 downward. */ -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) { + SetupHardware(); + + for (;;) + { + CDC1_Task(); + CDC2_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(); @@ -101,18 +91,7 @@ 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 @@ -120,11 +99,8 @@ 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 @@ -132,52 +108,61 @@ void EVENT_USB_Connect(void) */ void EVENT_USB_Disconnect(void) { - /* 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); + LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); } /** 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. */ void EVENT_USB_ConfigurationChanged(void) -{ - /* 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); +{ + /* Indicate USB connected and ready */ + LEDs_SetAllLEDs(LEDMASK_USB_READY); + /* Setup CDC Notification, Rx and Tx Endpoints for the first CDC */ + if (!(Endpoint_ConfigureEndpoint(CDC1_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT, + ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE, + ENDPOINT_BANK_SINGLE))) + { + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + } + + if (!(Endpoint_ConfigureEndpoint(CDC1_TX_EPNUM, EP_TYPE_BULK, + ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE, + ENDPOINT_BANK_SINGLE))) + { + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + } + + if (!(Endpoint_ConfigureEndpoint(CDC1_RX_EPNUM, EP_TYPE_BULK, + ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE, + ENDPOINT_BANK_SINGLE))) + { + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + } + /* 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); + if (!(Endpoint_ConfigureEndpoint(CDC2_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT, + ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE, + ENDPOINT_BANK_SINGLE))) + { + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + } + + if (!(Endpoint_ConfigureEndpoint(CDC2_TX_EPNUM, EP_TYPE_BULK, + ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE, + ENDPOINT_BANK_SINGLE))) + { + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + } - /* Start CDC tasks */ - Scheduler_SetTaskMode(CDC1_Task, TASK_RUN); - Scheduler_SetTaskMode(CDC2_Task, TASK_RUN); + if (!(Endpoint_ConfigureEndpoint(CDC2_RX_EPNUM, EP_TYPE_BULK, + ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE, + ENDPOINT_BANK_SINGLE))) + { + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + } } /** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific @@ -226,62 +211,45 @@ void EVENT_USB_UnhandledControlPacket(void) /* Acknowledge the SETUP packet, ready for data transfer */ Endpoint_ClearSETUP(); - /* Acknowledge status stage */ - while (!(Endpoint_IsINReady())); - Endpoint_ClearIN(); + Endpoint_ClearStatusStage(); } 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) +void CDC1_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", + }; + + /* Device must be connected and configured for the task to run */ + if (USB_DeviceState != DEVICE_STATE_Configured) + return; /* 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) @@ -302,7 +270,11 @@ TASK(CDC1_Task) Endpoint_ClearIN(); /* Wait until the endpoint is ready for another packet */ - while (!(Endpoint_IsINReady())); + while (!(Endpoint_IsINReady())) + { + if (USB_DeviceState == DEVICE_STATE_Unattached) + return; + } /* Send an empty packet to ensure that the host does not buffer data sent to it */ Endpoint_ClearIN(); @@ -319,8 +291,12 @@ TASK(CDC1_Task) /** Function to manage CDC data transmission and reception to and from the host for the second CDC interface, which echoes back * all data sent to it from the host. */ -TASK(CDC2_Task) +void CDC2_Task(void) { + /* Device must be connected and configured for the task to run */ + if (USB_DeviceState != DEVICE_STATE_Configured) + return; + /* Select the Serial Rx Endpoint */ Endpoint_SelectEndpoint(CDC2_RX_EPNUM); @@ -349,7 +325,11 @@ TASK(CDC2_Task) Endpoint_ClearIN(); /* Wait until the endpoint is ready for the next packet */ - while (!(Endpoint_IsINReady())); + while (!(Endpoint_IsINReady())) + { + if (USB_DeviceState == DEVICE_STATE_Unattached) + return; + } /* Send an empty packet to prevent host buffering */ Endpoint_ClearIN();