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148 lines
4.1 KiB
148 lines
4.1 KiB
/*
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LUFA Library
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Copyright (C) Dean Camera, 2009.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, and distribute this software
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and its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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#include "USBtoSerial.h"
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RingBuff_t Rx_Buffer;
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RingBuff_t Tx_Buffer;
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USB_ClassInfo_CDC_t VirtualSerial_CDC_Interface =
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{
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.ControlInterfaceNumber = 0,
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.DataINEndpointNumber = CDC_TX_EPNUM,
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.DataINEndpointSize = CDC_TXRX_EPSIZE,
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.DataOUTEndpointNumber = CDC_RX_EPNUM,
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.DataOUTEndpointSize = CDC_TXRX_EPSIZE,
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.NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM,
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.NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE,
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};
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int main(void)
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{
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SetupHardware();
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Buffer_Initialize(&Rx_Buffer);
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Buffer_Initialize(&Tx_Buffer);
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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for (;;)
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{
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for (uint8_t DataBytesRem = USB_CDC_BytesReceived(&VirtualSerial_CDC_Interface); DataBytesRem != 0; DataBytesRem--)
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{
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if (!(BUFF_STATICSIZE - Rx_Buffer.Elements))
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break;
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Buffer_StoreElement(&Rx_Buffer, USB_CDC_ReceiveByte(&VirtualSerial_CDC_Interface));
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}
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if (Tx_Buffer.Elements)
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USB_CDC_SendByte(&VirtualSerial_CDC_Interface, Buffer_GetElement(&Rx_Buffer));
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if (Rx_Buffer.Elements)
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Serial_TxByte(Buffer_GetElement(&Rx_Buffer));
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USB_CDC_USBTask(&VirtualSerial_CDC_Interface);
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USB_USBTask();
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}
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}
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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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wdt_disable();
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/* Disable clock division */
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clock_prescale_set(clock_div_1);
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/* Hardware Initialization */
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Joystick_Init();
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LEDs_Init();
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USB_Init();
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}
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void EVENT_USB_Connect(void)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
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}
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void EVENT_USB_Disconnect(void)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
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}
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void EVENT_USB_ConfigurationChanged(void)
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{
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LEDs_SetAllLEDs(LEDMASK_USB_READY);
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if (!(USB_CDC_ConfigureEndpoints(&VirtualSerial_CDC_Interface)))
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LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
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}
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void EVENT_USB_UnhandledControlPacket(void)
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{
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USB_CDC_ProcessControlPacket(&VirtualSerial_CDC_Interface);
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}
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ISR(USART1_RX_vect, ISR_BLOCK)
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{
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if (USB_IsConnected)
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Buffer_StoreElement(&Tx_Buffer, UDR1);
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}
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void EVENT_USB_CDC_LineEncodingChanged(USB_ClassInfo_CDC_t* CDCInterfaceInfo)
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{
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uint8_t ConfigMask = 0;
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if (CDCInterfaceInfo->LineEncoding.ParityType == Parity_Odd)
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ConfigMask = ((1 << UPM11) | (1 << UPM10));
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else if (CDCInterfaceInfo->LineEncoding.ParityType == Parity_Even)
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ConfigMask = (1 << UPM11);
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if (CDCInterfaceInfo->LineEncoding.CharFormat == TwoStopBits)
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ConfigMask |= (1 << USBS1);
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if (CDCInterfaceInfo->LineEncoding.DataBits == 6)
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ConfigMask |= (1 << UCSZ10);
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else if (CDCInterfaceInfo->LineEncoding.DataBits == 7)
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ConfigMask |= (1 << UCSZ11);
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else if (CDCInterfaceInfo->LineEncoding.DataBits == 8)
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ConfigMask |= ((1 << UCSZ11) | (1 << UCSZ10));
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UCSR1A = (1 << U2X1);
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UCSR1B = ((1 << RXCIE1) | (1 << TXEN1) | (1 << RXEN1));
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UCSR1C = ConfigMask;
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UBRR1 = SERIAL_2X_UBBRVAL((uint16_t)CDCInterfaceInfo->LineEncoding.BaudRateBPS);
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}
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