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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); + } +} + |