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| author | Dean Camera <dean@fourwalledcubicle.com> | 2009-11-25 00:36:18 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2009-11-25 00:36:18 +0000 |
| commit | c05c7c7df46a0377db8a72cb32f06aa40153d3e1 (patch) | |
| tree | 0e51bc1ef2a4e32ce29f448299a62ca16c46c3a8 /Projects/XPLAINBridge/XPLAINBridge.c | |
| parent | d3f11eb52809353d7f103cea8b4332f335c26697 (diff) | |
| download | lufa-c05c7c7df46a0377db8a72cb32f06aa40153d3e1.tar.gz lufa-c05c7c7df46a0377db8a72cb32f06aa40153d3e1.tar.bz2 lufa-c05c7c7df46a0377db8a72cb32f06aa40153d3e1.zip | |
Added new XPLAIN serial Bridge project (thanks to John Steggall for the software UART code).
Diffstat (limited to 'Projects/XPLAINBridge/XPLAINBridge.c')
| -rw-r--r-- | Projects/XPLAINBridge/XPLAINBridge.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/Projects/XPLAINBridge/XPLAINBridge.c b/Projects/XPLAINBridge/XPLAINBridge.c new file mode 100644 index 000000000..68cca5446 --- /dev/null +++ b/Projects/XPLAINBridge/XPLAINBridge.c @@ -0,0 +1,133 @@ +/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2009.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2009 John Steggall (steggall.j@gmail.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 XPLAINBridge project. This file contains the main tasks of
+ * the demo and is responsible for the initial application hardware configuration.
+ */
+
+#include "XPLAINBridge.h"
+
+/** Circular buffer to hold data from the host before it is sent to the device via the serial port. */
+RingBuff_t USBtoUART_Buffer;
+
+/** Circular buffer to hold data from the serial port before it is sent to the host. */
+RingBuff_t UARTtoUSB_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_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,
+ },
+ };
+
+/** 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(&USBtoUART_Buffer);
+ Buffer_Initialize(&UARTtoUSB_Buffer);
+
+ for (;;)
+ {
+ /* Read bytes from the USB OUT endpoint into the UART transmit buffer */
+ for (uint8_t DataBytesRem = CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface); DataBytesRem != 0; DataBytesRem--)
+ {
+ if (!(BUFF_STATICSIZE - USBtoUART_Buffer.Elements))
+ break;
+
+ Buffer_StoreElement(&USBtoUART_Buffer, CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface));
+ }
+
+ /* Read bytes from the UART receive buffer into the USB IN endpoint */
+ if (UARTtoUSB_Buffer.Elements)
+ CDC_Device_SendByte(&VirtualSerial_CDC_Interface, Buffer_GetElement(&UARTtoUSB_Buffer));
+
+ /* Load bytes from the UART transmit buffer into the UART */
+ if ((USBtoUART_Buffer.Elements) && SoftUART_IsReady())
+ SoftUART_TxByte(Buffer_GetElement(&USBtoUART_Buffer));
+
+ /* Load bytes from the UART into the UART receive buffer */
+ if(SoftUART_IsReceived())
+ Buffer_StoreElement(&UARTtoUSB_Buffer, SoftUART_RxByte());
+
+ 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 */
+ SoftUART_Init();
+ USB_Init();
+}
+
+/** Event handler for the library USB Configuration Changed event. */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+ CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface);
+}
+
+/** Event handler for the library USB Unhandled Control Request event. */
+void EVENT_USB_Device_UnhandledControlRequest(void)
+{
+ CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface);
+}
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