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Move new Class Driver powered demos to a new ClassDriver subdirectory, re-add old low level demos to a LowLevel subdirectory.

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Dean Camera 2009-06-05 07:16:33 +00:00
parent 6a7c298c0f
commit b9b03aadb2
273 changed files with 46078 additions and 0 deletions
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175
Demos/Device/ClassDriver/USBtoSerial/USBtoSerial.c Normal file
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/*
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 USBtoSerial demo. This file contains the main tasks of
* the demo and is responsible for the initial application hardware configuration.
*/
#include "USBtoSerial.h"
/** Circular buffer to hold data from the host before it is sent to the device via the serial port. */
RingBuff_t Rx_Buffer;
/** Circular buffer to hold data from the serial port before it is sent to the host. */
RingBuff_t Tx_Buffer;
/** 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_t VirtualSerial_CDC_Interface =
{
.ControlInterfaceNumber = 0,
.DataINEndpointNumber = CDC_TX_EPNUM,
.DataINEndpointSize = CDC_TXRX_EPSIZE,
.DataOUTEndpointNumber = CDC_RX_EPNUM,
.DataOUTEndpointSize = CDC_TXRX_EPSIZE,
.NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM,
.NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE,
};
/** 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();
Buffer_Initialize(&Rx_Buffer);
Buffer_Initialize(&Tx_Buffer);
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
for (;;)
{
for (uint8_t DataBytesRem = USB_CDC_BytesReceived(&VirtualSerial_CDC_Interface); DataBytesRem != 0; DataBytesRem--)
{
if (!(BUFF_STATICSIZE - Rx_Buffer.Elements))
break;
Buffer_StoreElement(&Rx_Buffer, USB_CDC_ReceiveByte(&VirtualSerial_CDC_Interface));
}
if (Tx_Buffer.Elements)
USB_CDC_SendByte(&VirtualSerial_CDC_Interface, Buffer_GetElement(&Rx_Buffer));
if (Rx_Buffer.Elements)
Serial_TxByte(Buffer_GetElement(&Rx_Buffer));
USB_CDC_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();
}
/** Event handler for the library USB Connection event. */
void EVENT_USB_Connect(void)
{
LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
}
/** Event handler for the library USB Disconnection event. */
void EVENT_USB_Disconnect(void)
{
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
}
/** Event handler for the library USB Configuration Changed event. */
void EVENT_USB_ConfigurationChanged(void)
{
LEDs_SetAllLEDs(LEDMASK_USB_READY);
if (!(USB_CDC_ConfigureEndpoints(&VirtualSerial_CDC_Interface)))
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
}
/** Event handler for the library USB Unhandled Control Packet event. */
void EVENT_USB_UnhandledControlPacket(void)
{
USB_CDC_ProcessControlPacket(&VirtualSerial_CDC_Interface);
}
/** ISR to manage the reception of data from the serial port, placing received bytes into a circular buffer
* for later transmission to the host.
*/
ISR(USART1_RX_vect, ISR_BLOCK)
{
if (USB_IsConnected)
Buffer_StoreElement(&Tx_Buffer, UDR1);
}
/** Event handler for the CDC Class driver Line Encoding Changed event.
*
* \param CDCInterfaceInfo Pointer to the CDC class interface configuration structure being referenced
*/
void EVENT_USB_CDC_LineEncodingChanged(USB_ClassInfo_CDC_t* CDCInterfaceInfo)
{
uint8_t ConfigMask = 0;
if (CDCInterfaceInfo->LineEncoding.ParityType == CDC_PARITY_Odd)
ConfigMask = ((1 << UPM11) | (1 << UPM10));
else if (CDCInterfaceInfo->LineEncoding.ParityType == CDC_PARITY_Even)
ConfigMask = (1 << UPM11);
if (CDCInterfaceInfo->LineEncoding.CharFormat == CDC_LINEENCODING_TwoStopBits)
ConfigMask |= (1 << USBS1);
if (CDCInterfaceInfo->LineEncoding.DataBits == 6)
ConfigMask |= (1 << UCSZ10);
else if (CDCInterfaceInfo->LineEncoding.DataBits == 7)
ConfigMask |= (1 << UCSZ11);
else if (CDCInterfaceInfo->LineEncoding.DataBits == 8)
ConfigMask |= ((1 << UCSZ11) | (1 << UCSZ10));
UCSR1A = (1 << U2X1);
UCSR1B = ((1 << RXCIE1) | (1 << TXEN1) | (1 << RXEN1));
UCSR1C = ConfigMask;
UBRR1 = SERIAL_2X_UBBRVAL((uint16_t)CDCInterfaceInfo->LineEncoding.BaudRateBPS);
}