diff options
Diffstat (limited to 'Demos/Device/ClassDriver/DualCDC/DualCDC.c')
| -rw-r--r-- | Demos/Device/ClassDriver/DualCDC/DualCDC.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/Demos/Device/ClassDriver/DualCDC/DualCDC.c b/Demos/Device/ClassDriver/DualCDC/DualCDC.c new file mode 100644 index 000000000..216902c67 --- /dev/null +++ b/Demos/Device/ClassDriver/DualCDC/DualCDC.c @@ -0,0 +1,190 @@ +/*
+ 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 DualCDC demo. This file contains the main tasks of
+ * the demo and is responsible for the initial application hardware configuration.
+ */
+
+#include "DualCDC.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. This is for the first CDC interface,
+ * which sends strings to the host for each joystick movement.
+ */
+USB_ClassInfo_CDC_t VirtualSerial1_CDC_Interface =
+ {
+ .ControlInterfaceNumber = 0,
+
+ .DataINEndpointNumber = CDC1_TX_EPNUM,
+ .DataINEndpointSize = CDC_TXRX_EPSIZE,
+
+ .DataOUTEndpointNumber = CDC1_RX_EPNUM,
+ .DataOUTEndpointSize = CDC_TXRX_EPSIZE,
+
+ .NotificationEndpointNumber = CDC1_NOTIFICATION_EPNUM,
+ .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE,
+ };
+
+/** 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. This is for the second CDC interface,
+ * which echos back all received data from the host.
+ */
+USB_ClassInfo_CDC_t VirtualSerial2_CDC_Interface =
+ {
+ .ControlInterfaceNumber = 2,
+
+ .DataINEndpointNumber = CDC2_TX_EPNUM,
+ .DataINEndpointSize = CDC_TXRX_EPSIZE,
+
+ .DataOUTEndpointNumber = CDC2_RX_EPNUM,
+ .DataOUTEndpointSize = CDC_TXRX_EPSIZE,
+
+ .NotificationEndpointNumber = CDC2_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();
+
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+
+ for (;;)
+ {
+ CheckJoystickMovement();
+
+ /* Discard all received data on the first CDC interface */
+ uint16_t BytesToDiscard = USB_CDC_BytesReceived(&VirtualSerial1_CDC_Interface);
+ while (BytesToDiscard--)
+ USB_CDC_ReceiveByte(&VirtualSerial1_CDC_Interface);
+
+ /* Echo all received data on the second CDC interface */
+ uint16_t BytesToEcho = USB_CDC_BytesReceived(&VirtualSerial2_CDC_Interface);
+ while (BytesToEcho--)
+ USB_CDC_SendByte(&VirtualSerial2_CDC_Interface, USB_CDC_ReceiveByte(&VirtualSerial2_CDC_Interface));
+
+ USB_CDC_USBTask(&VirtualSerial1_CDC_Interface);
+ USB_CDC_USBTask(&VirtualSerial2_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
+ * through the first of the CDC interfaces.
+ */
+void CheckJoystickMovement(void)
+{
+ uint8_t JoyStatus_LCL = Joystick_GetStatus();
+ char* ReportString = NULL;
+ 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",
+ };
+
+ if (JoyStatus_LCL & JOY_UP)
+ ReportString = JoystickStrings[0];
+ else if (JoyStatus_LCL & JOY_DOWN)
+ ReportString = JoystickStrings[1];
+ else if (JoyStatus_LCL & JOY_LEFT)
+ ReportString = JoystickStrings[2];
+ else if (JoyStatus_LCL & JOY_RIGHT)
+ ReportString = JoystickStrings[3];
+ else if (JoyStatus_LCL & JOY_PRESS)
+ ReportString = JoystickStrings[4];
+ else
+ ActionSent = false;
+
+ if ((ReportString != NULL) && (ActionSent == false))
+ {
+ ActionSent = true;
+
+ USB_CDC_SendString(&VirtualSerial1_CDC_Interface, ReportString, strlen(ReportString));
+ }
+}
+
+/** 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(&VirtualSerial1_CDC_Interface)))
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+
+ if (!(USB_CDC_ConfigureEndpoints(&VirtualSerial2_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(&VirtualSerial1_CDC_Interface);
+ USB_CDC_ProcessControlPacket(&VirtualSerial2_CDC_Interface);
+}
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