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| author | Jack Humbert <[email protected]> | 2017-07-07 11:55:23 -0400 | 
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| committer | Jack Humbert <[email protected]> | 2017-07-07 11:55:23 -0400 | 
| commit | 60b30c036397cb5627fa374bb930794b225daa29 (patch) | |
| tree | e156c2d6b27f01db6985f2cc560c9c345d48fdac /Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c | |
| download | qmk_firmware-60b30c036397cb5627fa374bb930794b225daa29.tar.gz qmk_firmware-60b30c036397cb5627fa374bb930794b225daa29.zip | |
Squashed 'lib/lufa/' content from commit 385d40300
git-subtree-dir: lib/lufa
git-subtree-split: 385d4030035dbaf41591309dbde47653bd03841b
Diffstat (limited to 'Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c')
| -rw-r--r-- | Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c | 217 | 
1 files changed, 217 insertions, 0 deletions
| diff --git a/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c b/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c new file mode 100644 index 0000000000..740f285f6b --- /dev/null +++ b/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c @@ -0,0 +1,217 @@ +/* +             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" + +/** 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_Host_t VirtualSerial_CDC_Interface = +	{ +		.Config = +			{ +				.DataINPipe             = +					{ +						.Address        = (PIPE_DIR_IN  | 1), +						.Banks          = 1, +					}, +				.DataOUTPipe            = +					{ +						.Address        = (PIPE_DIR_OUT | 2), +						.Banks          = 1, +					}, +				.NotificationPipe       = +					{ +						.Address        = (PIPE_DIR_IN  | 3), +						.Banks          = 1, +					}, +			}, +	}; + + +/** 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(); + +		CDC_Host_USBTask(&VirtualSerial_CDC_Interface); +		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); +} + +/** 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 + *  starts the library USB task to begin the enumeration and USB management process. + */ +void EVENT_USB_Host_DeviceAttached(void) +{ +	puts_P(PSTR("Device Attached.\r\n")); +	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("\r\nDevice Unattached.\r\n")); +	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) +{ +	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_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); +} + | 
