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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/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.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/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c')
| -rw-r--r-- | lib/lufa/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c | 242 | 
1 files changed, 242 insertions, 0 deletions
| diff --git a/lib/lufa/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c b/lib/lufa/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c new file mode 100644 index 0000000000..9a7ff4725e --- /dev/null +++ b/lib/lufa/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c @@ -0,0 +1,242 @@ +/* +             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 DualVirtualSerial demo. This file contains the main tasks of + *  the demo and is responsible for the initial application hardware configuration. + */ + +#include "DualVirtualSerial.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_Device_t VirtualSerial1_CDC_Interface = +	{ +		.Config = +			{ +				.ControlInterfaceNumber   = INTERFACE_ID_CDC1_CCI, +				.DataINEndpoint           = +					{ +						.Address          = CDC1_TX_EPADDR, +						.Size             = CDC_TXRX_EPSIZE, +						.Banks            = 1, +					}, +				.DataOUTEndpoint = +					{ +						.Address          = CDC1_RX_EPADDR, +						.Size             = CDC_TXRX_EPSIZE, +						.Banks            = 1, +					}, +				.NotificationEndpoint = +					{ +						.Address          = CDC1_NOTIFICATION_EPADDR, +						.Size             = CDC_NOTIFICATION_EPSIZE, +						.Banks            = 1, +					}, +			}, +	}; + +/** 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_Device_t VirtualSerial2_CDC_Interface = +	{ +		.Config = +			{ +				.ControlInterfaceNumber   = INTERFACE_ID_CDC2_CCI, +				.DataINEndpoint           = +					{ +						.Address          = CDC2_TX_EPADDR, +						.Size             = CDC_TXRX_EPSIZE, +						.Banks            = 1, +					}, +				.DataOUTEndpoint = +					{ +						.Address          = CDC2_RX_EPADDR, +						.Size             = CDC_TXRX_EPSIZE, +						.Banks            = 1, +					}, +				.NotificationEndpoint = +					{ +						.Address          = CDC2_NOTIFICATION_EPADDR, +						.Size             = CDC_NOTIFICATION_EPSIZE, +						.Banks            = 1, +					}, + +			}, +	}; + + +/** 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); +	GlobalInterruptEnable(); + +	for (;;) +	{ +		CheckJoystickMovement(); + +		/* Discard all received data on the first CDC interface */ +		CDC_Device_ReceiveByte(&VirtualSerial1_CDC_Interface); + +		/* Echo all received data on the second CDC interface */ +		int16_t ReceivedByte = CDC_Device_ReceiveByte(&VirtualSerial2_CDC_Interface); +		if (!(ReceivedByte < 0)) +		  CDC_Device_SendByte(&VirtualSerial2_CDC_Interface, (uint8_t)ReceivedByte); + +		CDC_Device_USBTask(&VirtualSerial1_CDC_Interface); +		CDC_Device_USBTask(&VirtualSerial2_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); +#elif (ARCH == ARCH_XMEGA) +	/* Start the PLL to multiply the 2MHz RC oscillator to 32MHz and switch the CPU core to run from it */ +	XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU); +	XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL); + +	/* Start the 32MHz internal RC oscillator and start the DFLL to increase it to 48MHz using the USB SOF as a reference */ +	XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ); +	XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB); + +	PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm; +#endif + +	/* 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; + +	if (JoyStatus_LCL & JOY_UP) +	  ReportString = "Joystick Up\r\n"; +	else if (JoyStatus_LCL & JOY_DOWN) +	  ReportString = "Joystick Down\r\n"; +	else if (JoyStatus_LCL & JOY_LEFT) +	  ReportString = "Joystick Left\r\n"; +	else if (JoyStatus_LCL & JOY_RIGHT) +	  ReportString = "Joystick Right\r\n"; +	else if (JoyStatus_LCL & JOY_PRESS) +	  ReportString = "Joystick Pressed\r\n"; +	else +	  ActionSent = false; + +	if ((ReportString != NULL) && (ActionSent == false)) +	{ +		ActionSent = true; + +		CDC_Device_SendString(&VirtualSerial1_CDC_Interface, ReportString); +	} +} + +/** Event handler for the library USB Connection event. */ +void EVENT_USB_Device_Connect(void) +{ +	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); +} + +/** Event handler for the library USB Disconnection event. */ +void EVENT_USB_Device_Disconnect(void) +{ +	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); +} + +/** Event handler for the library USB Configuration Changed event. */ +void EVENT_USB_Device_ConfigurationChanged(void) +{ +	bool ConfigSuccess = true; + +	ConfigSuccess &= CDC_Device_ConfigureEndpoints(&VirtualSerial1_CDC_Interface); +	ConfigSuccess &= CDC_Device_ConfigureEndpoints(&VirtualSerial2_CDC_Interface); + +	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR); +} + +/** Event handler for the library USB Control Request reception event. */ +void EVENT_USB_Device_ControlRequest(void) +{ +	CDC_Device_ProcessControlRequest(&VirtualSerial1_CDC_Interface); +	CDC_Device_ProcessControlRequest(&VirtualSerial2_CDC_Interface); +} + +/** CDC class driver callback function the processing of changes to the virtual + *  control lines sent from the host.. + * + *  \param[in] CDCInterfaceInfo  Pointer to the CDC class interface configuration structure being referenced + */ +void EVENT_CDC_Device_ControLineStateChanged(USB_ClassInfo_CDC_Device_t *const CDCInterfaceInfo) +{ +	/* You can get changes to the virtual CDC lines in this callback; a common +	   use-case is to use the Data Terminal Ready (DTR) flag to enable and +	   disable CDC communications in your application when set to avoid the +	   application blocking while waiting for a host to become ready and read +	   in the pending data from the USB endpoints. +	*/ +	bool HostReady = (CDCInterfaceInfo->State.ControlLineStates.HostToDevice & CDC_CONTROL_LINE_OUT_DTR) != 0; + +	if (CDCInterfaceInfo == &VirtualSerial1_CDC_Interface) +	{ +		// CDC interface 1's host is ready to send/receive data +	} +	else +	{ +		// CDC interface 2's host is ready to send/receive data +	} +} | 
