diff options
Diffstat (limited to 'lib/lufa/Projects/MissileLauncher/MissileLauncher.c')
| -rw-r--r-- | lib/lufa/Projects/MissileLauncher/MissileLauncher.c | 323 | 
1 files changed, 323 insertions, 0 deletions
| diff --git a/lib/lufa/Projects/MissileLauncher/MissileLauncher.c b/lib/lufa/Projects/MissileLauncher/MissileLauncher.c new file mode 100644 index 0000000000..006543d86d --- /dev/null +++ b/lib/lufa/Projects/MissileLauncher/MissileLauncher.c @@ -0,0 +1,323 @@ +/* +            USB Missile Launcher Demo +        Copyright (C) Dave Fletcher, 2010. +         fletch at fletchtronics dot net + +       Based on research by Scott Weston at +        http://code.google.com/p/pymissile + */ + +/* +  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com) +  Copyright 2010  Dave Fletcher (fletch [at] fletchtronics [dot] net) + +  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. +*/ + +/* + *  Missile Launcher host. This is a host driver for the popular USB-controller table top toy missile launchers, + *  which can typically aim and fire small foam "missiles" from a spring-loaded turret. This project controls the + *  launcher via a joystick and button to aim and fire missiles at targets without a PC. + */ + +/** \file + * + *  Main source file for the MissileLauncher application. This file contains the main tasks of + *  the application and is responsible for the initial application hardware configuration as well + *  as the sending of commands to the attached launcher toy. + */ + +#include "MissileLauncher.h" + +/** Launcher first init command report data sequence */ +static const uint8_t CMD_INITA[8]     = {  85, 83, 66, 67,  0,  0,  4,  0  }; + +/** Launcher second init command report data sequence */ +static const uint8_t CMD_INITB[8]     = {  85, 83, 66, 67,  0, 64,  2,  0  }; + +/** Launcher command report data sequence to stop all movement */ +static const uint8_t CMD_STOP[8]      = {   0,  0,  0,  0,  0,  0,  8,  8  }; + +/** Launcher command report data sequence to move left */ +static const uint8_t CMD_LEFT[8]      = {   0,  1,  0,  0,  0,  0,  8,  8  }; + +/** Launcher command report data sequence to move right */ +static const uint8_t CMD_RIGHT[8]     = {   0,  0,  1,  0,  0,  0,  8,  8  }; + +/** Launcher command report data sequence to move up */ +static const uint8_t CMD_UP[8]        = {   0,  0,  0,  1,  0,  0,  8,  8  }; + +/** Launcher command report data sequence to move down */ +static const uint8_t CMD_DOWN[8]      = {   0,  0,  0,  0,  1,  0,  8,  8  }; + +/** Launcher command report data sequence to move left and up */ +static const uint8_t CMD_LEFTUP[8]    = {   0,  1,  0,  1,  0,  0,  8,  8  }; + +/** Launcher command report data sequence to move right and up */ +static const uint8_t CMD_RIGHTUP[8]   = {   0,  0,  1,  1,  0,  0,  8,  8  }; + +/** Launcher command report data sequence to move left and down */ +static const uint8_t CMD_LEFTDOWN[8]  = {   0,  1,  0,  0,  1,  0,  8,  8  }; + +/** Launcher command report data sequence to move right and down */ +static const uint8_t CMD_RIGHTDOWN[8] = {   0,  0,  1,  0,  1,  0,  8,  8  }; + +/** Launcher command report data sequence to fire a missile */ +static const uint8_t CMD_FIRE[8]      = {   0,  0,  0,  0,  0,  1,  8,  8  }; + +/** Last command sent to the launcher, to determine what new command (if any) must be sent */ +static const uint8_t* CmdState; + +/** Buffer to hold a command to send to the launcher */ +static uint8_t CmdBuffer[LAUNCHER_CMD_BUFFER_SIZE]; + + +/** 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(); + +	CmdState = CMD_STOP; + +	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); +	GlobalInterruptEnable(); + +	for (;;) +	{ +		Read_Joystick_Status(); +		DiscardNextReport(); + +		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 */ +	LEDs_Init(); +	USB_Init(); +	Joystick_Init(); +	Buttons_Init(); +} + +/** Reads the joystick and button status, sending commands to the launcher as needed. */ +void Read_Joystick_Status(void) +{ +	uint8_t JoyStatus_LCL = Joystick_GetStatus(); +	uint8_t Buttons_LCL   = Buttons_GetStatus(); + +	if (Buttons_LCL & BUTTONS_BUTTON1) +	  Send_Command(CMD_FIRE); +	else if (JoyStatus_LCL & JOY_UP) +	  Send_Command(CMD_UP); +	else if (JoyStatus_LCL & JOY_DOWN) +	  Send_Command(CMD_DOWN); +	else if (JoyStatus_LCL & JOY_LEFT) +	  Send_Command(CMD_LEFT); +	else if (JoyStatus_LCL & JOY_RIGHT) +	  Send_Command(CMD_RIGHT); +	else if (CmdState != CMD_STOP) +	  Send_Command(CMD_STOP); +} + +/** Lower level send routine, copies report into a larger buffer and sends. + * + *  \param[in] Report  Report data to send. + *  \param[in] ReportSize  Report length in bytes. + */ +void Send_Command_Report(const uint8_t* const Report, +                         const uint16_t ReportSize) +{ +	memcpy(CmdBuffer, Report, 8); +	WriteNextReport(CmdBuffer, ReportSize); +} + +/** Sends one of the \c CMD_* command constants to the attached device. + * + *  \param[in] Command  One of the command constants. + */ +void Send_Command(const uint8_t* const Command) +{ +	if ((CmdState == CMD_STOP && Command != CMD_STOP) || +		(CmdState != CMD_STOP && Command == CMD_STOP)) +	{ +		LEDs_ToggleLEDs(LEDS_LED4); + +		Send_Command_Report(CMD_INITA, 8); +		Send_Command_Report(CMD_INITB, 8); +		Send_Command_Report(Command, LAUNCHER_CMD_BUFFER_SIZE); +	} + +	CmdState = Command; +} + +/** 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) +{ +	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) +{ +	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); + +	/* Get and process the configuration descriptor data */ +	if (ProcessConfigurationDescriptor() != SuccessfulConfigRead) +	{ +		LEDs_SetAllLEDs(LEDMASK_USB_ERROR); +		return; +	} + +	/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */ +	if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful) +	{ +		LEDs_SetAllLEDs(LEDMASK_USB_ERROR); +		return; +	} + +	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(); + +	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) +{ +	LEDs_SetAllLEDs(LEDMASK_USB_ERROR); +} + +/** Reads in and discards the next report from the attached device. */ +void DiscardNextReport(void) +{ +	if (USB_HostState != HOST_STATE_Configured) +	  return; + +	/* Select and unfreeze HID data IN pipe */ +	Pipe_SelectPipe(HID_DATA_IN_PIPE); +	Pipe_Unfreeze(); + +	/* Check to see if a packet has been received */ +	if (!(Pipe_IsINReceived())) +	{ +		/* Refreeze HID data IN pipe */ +		Pipe_Freeze(); + +		return; +	} + +	/* Clear the IN endpoint, ready for next data packet */ +	Pipe_ClearIN(); + +	/* Refreeze HID data IN pipe */ +	Pipe_Freeze(); +} + +/** Writes a report to the attached device. + * + *  \param[in] ReportOUTData  Buffer containing the report to send to the device + *  \param[in] ReportLength  Length of the report to send + */ +void WriteNextReport(uint8_t* const ReportOUTData, +                     const uint16_t ReportLength) +{ +	if (USB_HostState != HOST_STATE_Configured) +	  return; + +	/* Select and unfreeze HID data OUT pipe */ +	Pipe_SelectPipe(HID_DATA_OUT_PIPE); + +	/* Not all HID devices have an OUT endpoint (some require OUT reports to be sent over the +	 * control endpoint instead) - check to see if the OUT endpoint has been initialized */ +	if (Pipe_IsConfigured()) +	{ +		Pipe_Unfreeze(); + +		/* Ensure pipe is ready to be written to before continuing */ +		if (!(Pipe_IsOUTReady())) +		{ +			/* Refreeze the data OUT pipe */ +			Pipe_Freeze(); + +			return; +		} + +		/* Write out HID report data */ +		Pipe_Write_Stream_LE(ReportOUTData, ReportLength, NULL); + +		/* Clear the OUT endpoint, send last data packet */ +		Pipe_ClearOUT(); + +		/* Refreeze the data OUT pipe */ +		Pipe_Freeze(); +	} +	else +	{ +		/* Class specific request to send a HID report to the device */ +		USB_ControlRequest = (USB_Request_Header_t) +			{ +				.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), +				.bRequest      = HID_REQ_SetReport, +				.wValue        = 0x02, +				.wIndex        = 0x01, +				.wLength       = ReportLength, +			}; + +		/* Select the control pipe for the request transfer */ +		Pipe_SelectPipe(PIPE_CONTROLPIPE); + +		/* Send the request to the device */ +		USB_Host_SendControlRequest(ReportOUTData); +	} +} + | 
