/*
LUFA Library
- Copyright (C) Dean Camera, 2010.
-
+ Copyright (C) Dean Camera, 2012.
+
dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
+ www.lufa-lib.org
*/
/*
- Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
- Permission to use, copy, modify, distribute, and sell this
+ Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
+ without fee, 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
+ 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
* Main source file for the VirtualSerialHost demo. This file contains the main tasks of
* the demo and is responsible for the initial application hardware configuration.
*/
-
+
#include "VirtualSerialHost.h"
/** LUFA CDC Class driver interface configuration and state information. This structure is
.NotificationPipeDoubleBank = false,
},
};
-
+
+
/** Main program entry point. This routine configures the hardware required by the application, then
* enters a loop to run the application tasks in sequence.
*/
for (;;)
{
- switch (USB_HostState)
- {
- case HOST_STATE_Addressed:
- LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
-
- uint16_t ConfigDescriptorSize;
- uint8_t ConfigDescriptorData[512];
-
- if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
- sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
- {
- puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;
- break;
- }
-
- if (CDC_Host_ConfigurePipes(&VirtualSerial_CDC_Interface,
- ConfigDescriptorSize, ConfigDescriptorData) != CDC_ENUMERROR_NoError)
- {
- puts_P(PSTR("Attached Device Not a Valid CDC Class Device.\r\n"));
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;
- break;
- }
-
- if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
- {
- puts_P(PSTR("Error Setting Device Configuration.\r\n"));
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;
- break;
- }
-
- puts_P(PSTR("CDC Device Enumerated.\r\n"));
- LEDs_SetAllLEDs(LEDMASK_USB_READY);
- USB_HostState = HOST_STATE_Configured;
- break;
- case HOST_STATE_Configured:
- if (CDC_Host_BytesReceived(&VirtualSerial_CDC_Interface))
- {
- /* Echo received bytes from the attached device through the USART */
- while (CDC_Host_BytesReceived(&VirtualSerial_CDC_Interface))
- putchar(CDC_Host_ReceiveByte(&VirtualSerial_CDC_Interface));
-
- CDC_Host_Flush(&VirtualSerial_CDC_Interface);
- }
-
- break;
- }
-
+ CDCHost_Task();
+
CDC_Host_USBTask(&VirtualSerial_CDC_Interface);
USB_USBTask();
}
clock_prescale_set(clock_div_1);
/* Hardware Initialization */
- SerialStream_Init(9600, false);
+ Serial_Init(9600, false);
LEDs_Init();
USB_Init();
+
+ /* Create a stdio stream for the serial port for stdin and stdout */
+ Serial_CreateStream(NULL);
+}
+
+/** Task to manage an enumerated USB CDC device once connected, to print received data
+ * from the device to the serial port.
+ */
+void CDCHost_Task(void)
+{
+ if (USB_HostState != HOST_STATE_Configured)
+ return;
+
+ if (CDC_Host_BytesReceived(&VirtualSerial_CDC_Interface))
+ {
+ /* Echo received bytes from the attached device through the USART */
+ int16_t ReceivedByte = CDC_Host_ReceiveByte(&VirtualSerial_CDC_Interface);
+ if (!(ReceivedByte < 0))
+ putchar(ReceivedByte);
+ }
}
/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
*/
void EVENT_USB_Host_DeviceEnumerationComplete(void)
{
+ LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+
+ uint16_t ConfigDescriptorSize;
+ uint8_t ConfigDescriptorData[512];
+
+ if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
+ sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
+ {
+ puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ return;
+ }
+
+ if (CDC_Host_ConfigurePipes(&VirtualSerial_CDC_Interface,
+ ConfigDescriptorSize, ConfigDescriptorData) != CDC_ENUMERROR_NoError)
+ {
+ puts_P(PSTR("Attached Device Not a Valid CDC Class Device.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ return;
+ }
+
+ if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
+ {
+ puts_P(PSTR("Error Setting Device Configuration.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ return;
+ }
+
+ VirtualSerial_CDC_Interface.State.LineEncoding.BaudRateBPS = 9600;
+ VirtualSerial_CDC_Interface.State.LineEncoding.CharFormat = CDC_LINEENCODING_OneStopBit;
+ VirtualSerial_CDC_Interface.State.LineEncoding.ParityType = CDC_PARITY_None;
+ VirtualSerial_CDC_Interface.State.LineEncoding.DataBits = 8;
+
+ if (CDC_Host_SetLineEncoding(&VirtualSerial_CDC_Interface))
+ {
+ puts_P(PSTR("Error Setting Device Line Encoding.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ return;
+ }
+
+ puts_P(PSTR("CDC Device Enumerated.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_READY);
}
/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
{
- USB_ShutDown();
+ USB_Disable();
printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
" -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
" -- Error Code %d\r\n"
" -- Sub Error Code %d\r\n"
" -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
-
+
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
}
+
projects / pub / USBasp.git / blobdiff