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| author | Jack Humbert <[email protected]> | 2017-07-07 15:33:29 -0400 | 
|---|---|---|
| committer | GitHub <[email protected]> | 2017-07-07 15:33:29 -0400 | 
| commit | 9de443cbf10ac41bc15762c9c83f138f51dd3b9a (patch) | |
| tree | d8ddcb428e0b7d9773a1e52c42b60bdca2658beb /lib/lufa/Demos/Host/LowLevel/VirtualSerialHost/VirtualSerialHost.c | |
| parent | 88b3d051b21cb1ddacc6353c5d59b19f03f3a242 (diff) | |
| parent | 1c26468ad5a0701e244c99cbcbc547c93b75d515 (diff) | |
| download | qmk_firmware-9de443cbf10ac41bc15762c9c83f138f51dd3b9a.tar.gz qmk_firmware-9de443cbf10ac41bc15762c9c83f138f51dd3b9a.zip | |
Merge pull request #1471 from qmk/lufa_lib0.5.72
Update LUFA and move it to /lib/lufa
Diffstat (limited to 'lib/lufa/Demos/Host/LowLevel/VirtualSerialHost/VirtualSerialHost.c')
| -rw-r--r-- | lib/lufa/Demos/Host/LowLevel/VirtualSerialHost/VirtualSerialHost.c | 239 | 
1 files changed, 239 insertions, 0 deletions
| diff --git a/lib/lufa/Demos/Host/LowLevel/VirtualSerialHost/VirtualSerialHost.c b/lib/lufa/Demos/Host/LowLevel/VirtualSerialHost/VirtualSerialHost.c new file mode 100644 index 0000000000..832fdc20d1 --- /dev/null +++ b/lib/lufa/Demos/Host/LowLevel/VirtualSerialHost/VirtualSerialHost.c @@ -0,0 +1,239 @@ +/* +             LUFA Library +     Copyright (C) Dean Camera, 2017. + +  dean [at] fourwalledcubicle [dot] com +           www.lufa-lib.org +*/ + +/* +  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com) + +  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 +  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 disclaims 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 VirtualSerialHost demo. This file contains the main tasks of + *  the demo and is responsible for the initial application hardware configuration. + */ + +#include "VirtualSerialHost.h" + +/** Main program entry point. This routine configures the hardware required by the application, then + *  enters a loop to run the application tasks in sequence. + */ +int main(void) +{ +	SetupHardware(); + +	puts_P(PSTR(ESC_FG_CYAN "CDC Host Demo running.\r\n" ESC_FG_WHITE)); + +	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); +	GlobalInterruptEnable(); + +	for (;;) +	{ +		CDCHost_Task(); + +		USB_USBTask(); +	} +} + +/** Configures the board hardware and chip peripherals for the demo's functionality. */ +void SetupHardware(void) +{ +#if (ARCH == ARCH_AVR8) +	/* Disable watchdog if enabled by bootloader/fuses */ +	MCUSR &= ~(1 << WDRF); +	wdt_disable(); + +	/* Disable clock division */ +	clock_prescale_set(clock_div_1); +#endif + +	/* Hardware Initialization */ +	Serial_Init(9600, false); +	LEDs_Init(); +	USB_Init(); + +	/* Create a stdio stream for the serial port for stdin and stdout */ +	Serial_CreateStream(NULL); +} + +/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and + *  starts the library USB task to begin the enumeration and USB management process. + */ +void EVENT_USB_Host_DeviceAttached(void) +{ +	puts_P(PSTR(ESC_FG_GREEN "Device Attached.\r\n" ESC_FG_WHITE)); +	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); +} + +/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and + *  stops the library USB task management process. + */ +void EVENT_USB_Host_DeviceUnattached(void) +{ +	puts_P(PSTR(ESC_FG_GREEN "\r\nDevice Unattached.\r\n" ESC_FG_WHITE)); +	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); +} + +/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully + *  enumerated by the host and is now ready to be used by the application. + */ +void EVENT_USB_Host_DeviceEnumerationComplete(void) +{ +	puts_P(PSTR("Getting Config Data.\r\n")); + +	uint8_t ErrorCode; + +	/* Get and process the configuration descriptor data */ +	if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead) +	{ +		if (ErrorCode == ControlError) +		  puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n")); +		else +		  puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n")); + +		printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode); + +		LEDs_SetAllLEDs(LEDMASK_USB_ERROR); +		return; +	} + +	/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */ +	if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful) +	{ +		printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n" +		                         " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode); + +		LEDs_SetAllLEDs(LEDMASK_USB_ERROR); +		return; +	} + +	CDC_LineEncoding_t LineEncoding = { .BaudRateBPS = 9600, +	                                    .CharFormat  = CDC_LINEENCODING_OneStopBit, +	                                    .ParityType  = CDC_PARITY_None, +	                                    .DataBits    = 8                            }; + +	USB_ControlRequest = (USB_Request_Header_t) +	{ +		.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), +		.bRequest      = CDC_REQ_SetLineEncoding, +		.wValue        = 0, +		.wIndex        = 0, +		.wLength       = sizeof(LineEncoding), +	}; + +	/* Set the Line Encoding of the CDC interface within the device, so that it is ready to accept data */ +	Pipe_SelectPipe(PIPE_CONTROLPIPE); +	if (USB_Host_SendControlRequest(&LineEncoding) != HOST_SENDCONTROL_Successful) +	{ +		printf_P(PSTR(ESC_FG_RED "Control Error (Set Line Encoding).\r\n" +		                         " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode); + +		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_Disable(); + +	printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n" +	                         " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode); + +	LEDs_SetAllLEDs(LEDMASK_USB_ERROR); +	for(;;); +} + +/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while + *  enumerating an attached USB device. + */ +void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, +                                            const uint8_t SubErrorCode) +{ +	printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n" +	                         " -- 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); +} + +/** Task to read in data received from the attached CDC device and print it to the serial port. + */ +void CDCHost_Task(void) +{ +	if (USB_HostState != HOST_STATE_Configured) +	  return; + +	/* Select the data IN pipe */ +	Pipe_SelectPipe(CDC_DATA_IN_PIPE); +	Pipe_Unfreeze(); + +	/* Check to see if a packet has been received */ +	if (Pipe_IsINReceived()) +	{ +		/* Re-freeze IN pipe after the packet has been received */ +		Pipe_Freeze(); + +		/* Check if data is in the pipe */ +		if (Pipe_IsReadWriteAllowed()) +		{ +			/* Get the length of the pipe data, and create a new buffer to hold it */ +			uint16_t BufferLength = Pipe_BytesInPipe(); +			uint8_t  Buffer[BufferLength]; + +			/* Read in the pipe data to the temporary buffer */ +			Pipe_Read_Stream_LE(Buffer, BufferLength, NULL); + +			/* Print out the buffer contents to the USART */ +			for (uint16_t BufferByte = 0; BufferByte < BufferLength; BufferByte++) +			  putchar(Buffer[BufferByte]); +		} + +		/* Clear the pipe after it is read, ready for the next packet */ +		Pipe_ClearIN(); +	} + +	/* Re-freeze IN pipe after use */ +	Pipe_Freeze(); + +	/* Select and unfreeze the notification pipe */ +	Pipe_SelectPipe(CDC_NOTIFICATION_PIPE); +	Pipe_Unfreeze(); + +	/* Check if a packet has been received */ +	if (Pipe_IsINReceived()) +	{ +		/* Discard the unused event notification */ +		Pipe_ClearIN(); +	} + +	/* Freeze notification IN pipe after use */ +	Pipe_Freeze(); +} + | 
