From cf22a744ec0da3b68c4ffdb14c6fa43f2e07542f Mon Sep 17 00:00:00 2001 From: Dean Camera Date: Mon, 7 Dec 2009 04:35:59 +0000 Subject: Additional file renames and modifications to change CDC demos to VirtualSerial. --- .../ClassDriver/VirtualSerial/VirtualSerial.c | 166 +++++++++++++++++++++ 1 file changed, 166 insertions(+) create mode 100644 Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c (limited to 'Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c') diff --git a/Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c b/Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c new file mode 100644 index 0000000000..8940ae0428 --- /dev/null +++ b/Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c @@ -0,0 +1,166 @@ +/* + 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" + +/** LUFA CDC Class driver interface configuration and state information. This structure is + * passed to all CDC Class driver functions, so that multiple instances of the same class + * within a device can be differentiated from one another. + */ +USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface = + { + .Config = + { + .ControlInterfaceNumber = 0, + + .DataINEndpointNumber = CDC_TX_EPNUM, + .DataINEndpointSize = CDC_TXRX_EPSIZE, + .DataINEndpointDoubleBank = false, + + .DataOUTEndpointNumber = CDC_RX_EPNUM, + .DataOUTEndpointSize = CDC_TXRX_EPSIZE, + .DataOUTEndpointDoubleBank = false, + + .NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM, + .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE, + .NotificationEndpointDoubleBank = false, + }, + }; + +/** Standard file stream for the CDC interface when set up, so that the virtual CDC COM port can be + * used like any regular character stream in the C APIs + */ +static FILE USBSerialStream; + +/** 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(); + + /* Create a regular character stream for the interface so that it can be used with the stdio.h functions */ + CDC_Device_CreateStream(&VirtualSerial_CDC_Interface, &USBSerialStream); + + LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); + + for (;;) + { + CheckJoystickMovement(); + + /* Must throw away unused bytes from the host, or it will lock up while waiting for the device */ + while (CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface)) + CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface); + + CDC_Device_USBTask(&VirtualSerial_CDC_Interface); + 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(); + + /* Disable clock division */ + clock_prescale_set(clock_div_1); + + /* Hardware Initialization */ + Joystick_Init(); + LEDs_Init(); + USB_Init(); +} + +/** Checks for changes in the position of the board joystick, sending strings to the host upon each change. */ +void CheckJoystickMovement(void) +{ + uint8_t JoyStatus_LCL = Joystick_GetStatus(); + char* ReportString = NULL; + static bool ActionSent = false; + + if (JoyStatus_LCL & JOY_UP) + ReportString = "Joystick Up\r\n"; + else if (JoyStatus_LCL & JOY_DOWN) + ReportString = "Joystick Down\r\n"; + else if (JoyStatus_LCL & JOY_LEFT) + ReportString = "Joystick Left\r\n"; + else if (JoyStatus_LCL & JOY_RIGHT) + ReportString = "Joystick Right\r\n"; + else if (JoyStatus_LCL & JOY_PRESS) + ReportString = "Joystick Pressed\r\n"; + else + ActionSent = false; + + if ((ReportString != NULL) && (ActionSent == false)) + { + ActionSent = true; + + /* Write the string to the virtual COM port via the created character stream */ + fputs(ReportString, &USBSerialStream); + + /* Alternatively, without the stream: */ + // CDC_Device_SendString(&VirtualSerial_CDC_Interface, ReportString, strlen(ReportString)); + } +} + +/** Event handler for the library USB Connection event. */ +void EVENT_USB_Device_Connect(void) +{ + LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); +} + +/** Event handler for the library USB Disconnection event. */ +void EVENT_USB_Device_Disconnect(void) +{ + LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); +} + +/** Event handler for the library USB Configuration Changed event. */ +void EVENT_USB_Device_ConfigurationChanged(void) +{ + LEDs_SetAllLEDs(LEDMASK_USB_READY); + + if (!(CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface))) + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); +} + +/** Event handler for the library USB Unhandled Control Request event. */ +void EVENT_USB_Device_UnhandledControlRequest(void) +{ + CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface); +} -- cgit v1.2.3