--- /dev/null
+/*\r
+ LUFA Library\r
+ Copyright (C) Dean Camera, 2009.\r
+ \r
+ dean [at] fourwalledcubicle [dot] com\r
+ www.fourwalledcubicle.com\r
+*/\r
+\r
+/*\r
+ USB Missle Launcher Demo\r
+ Copyright (C) Dave Fletcher, 2009.\r
+ fletch at fletchtronics dot net\r
+ */\r
+\r
+/*\r
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+ Copyright 2009 Dave Fletcher (fletch [at] fletchtronics [dot] net)\r
+\r
+ Permission to use, copy, modify, and distribute this software\r
+ and its documentation for any purpose and without fee is hereby\r
+ granted, provided that the above copyright notice appear in all\r
+ copies and that both that the copyright notice and this\r
+ permission notice and warranty disclaimer appear in supporting\r
+ documentation, and that the name of the author not be used in\r
+ advertising or publicity pertaining to distribution of the\r
+ software without specific, written prior permission.\r
+\r
+ The author disclaim all warranties with regard to this\r
+ software, including all implied warranties of merchantability\r
+ and fitness. In no event shall the author be liable for any\r
+ special, indirect or consequential damages or any damages\r
+ whatsoever resulting from loss of use, data or profits, whether\r
+ in an action of contract, negligence or other tortious action,\r
+ arising out of or in connection with the use or performance of\r
+ this software.\r
+*/\r
+\r
+/*\r
+ * Missle Launcher host. This is a host driver for the popular USB-controller table top toy missle launchers,\r
+ * which can typically aim and fire small foam "missles" from a spring-loaded turret. This project controls the\r
+ * launcher via a joystick and button to aim and fire missles at targets without a PC.\r
+ */\r
+\r
+/** \file\r
+ *\r
+ * Main source file for the MissileLauncher application. This file contains the main tasks of\r
+ * the application and is responsible for the initial application hardware configuration as well\r
+ * as the sending of commands to the attached launcher toy.\r
+ */\r
+ \r
+#include "MissileLauncher.h"\r
+\r
+/** Command constants */\r
+uint8_t CMD_INITA[8] = { 85, 83, 66, 67, 0, 0, 4, 0 };\r
+uint8_t CMD_INITB[8] = { 85, 83, 66, 67, 0, 64, 2, 0 };\r
+uint8_t CMD_STOP[8] = { 0, 0, 0, 0, 0, 0, 8, 8 };\r
+uint8_t CMD_LEFT[8] = { 0, 1, 0, 0, 0, 0, 8, 8 };\r
+uint8_t CMD_RIGHT[8] = { 0, 0, 1, 0, 0, 0, 8, 8 };\r
+uint8_t CMD_UP[8] = { 0, 0, 0, 1, 0, 0, 8, 8 };\r
+uint8_t CMD_DOWN[8] = { 0, 0, 0, 0, 1, 0, 8, 8 };\r
+uint8_t CMD_LEFTUP[8] = { 0, 1, 0, 1, 0, 0, 8, 8 };\r
+uint8_t CMD_RIGHTUP[8] = { 0, 0, 1, 1, 0, 0, 8, 8 };\r
+uint8_t CMD_LEFTDOWN[8] = { 0, 1, 0, 0, 1, 0, 8, 8 };\r
+uint8_t CMD_RIGHTDOWN[8] = { 0, 0, 1, 0, 1, 0, 8, 8 };\r
+uint8_t CMD_FIRE[8] = { 0, 0, 0, 0, 0, 1, 8, 8 };\r
+\r
+uint8_t *CmdState;\r
+uint8_t CmdBuffer[LAUNCHER_CMD_BUFFER_SIZE];\r
+\r
+/** Main program entry point. This routine configures the hardware required by the application, then\r
+ * starts the scheduler to run the application tasks.\r
+ */\r
+int main(void)\r
+{\r
+ SetupHardware();\r
+\r
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
+ \r
+ CmdState = CMD_STOP;\r
+\r
+ for (;;)\r
+ {\r
+ Read_Joystick_Status();\r
+ \r
+ HID_Host_Task();\r
+ USB_USBTask();\r
+ }\r
+}\r
+\r
+/** Configures the board hardware and chip peripherals for the demo's functionality. */\r
+void SetupHardware(void)\r
+{\r
+ /* Disable watchdog if enabled by bootloader/fuses */\r
+ MCUSR &= ~(1 << WDRF);\r
+ wdt_disable();\r
+\r
+ /* Disable clock division */\r
+ clock_prescale_set(clock_div_1);\r
+\r
+ /* Hardware Initialization */\r
+ LEDs_Init();\r
+ USB_Init();\r
+ Joystick_Init();\r
+ Buttons_Init();\r
+}\r
+\r
+/** Reads the joystick and button status, sending commands to the launcher as needed. */\r
+void Read_Joystick_Status(void)\r
+{\r
+ uint8_t JoyStatus_LCL = Joystick_GetStatus();\r
+\r
+ if (BUTTONS_BUTTON1 && Buttons_GetStatus())\r
+ Send_Command(CMD_FIRE);\r
+ else if (JoyStatus_LCL & JOY_UP)\r
+ Send_Command(CMD_UP);\r
+ else if (JoyStatus_LCL & JOY_DOWN)\r
+ Send_Command(CMD_DOWN);\r
+ else if (JoyStatus_LCL & JOY_LEFT)\r
+ Send_Command(CMD_LEFT);\r
+ else if (JoyStatus_LCL & JOY_RIGHT)\r
+ Send_Command(CMD_RIGHT);\r
+ else if (CmdState != CMD_STOP)\r
+ Send_Command(CMD_STOP);\r
+}\r
+\r
+/** Lower level send routine, copies report into a larger buffer and sends.\r
+ *\r
+ * \param Report Report data to send.\r
+ * \param ReportSize Report length in bytes.\r
+ */\r
+void Send_Command_Report(uint8_t *Report, uint16_t ReportSize)\r
+{\r
+ memcpy(CmdBuffer, Report, 8);\r
+ WriteNextReport(CmdBuffer, ReportSize);\r
+}\r
+\r
+/** Send one of the CMD_* command constants listed above.\r
+ *\r
+ * \param Command One of the command constants.\r
+ */\r
+void Send_Command(uint8_t* Command)\r
+{\r
+ if ((CmdState == CMD_STOP && Command != CMD_STOP) ||\r
+ (CmdState != CMD_STOP && Command == CMD_STOP))\r
+ {\r
+ LEDs_ChangeLEDs(LEDS_LED4, ~LEDs_GetLEDs() & LEDS_LED4);\r
+\r
+ Send_Command_Report(CMD_INITA, 8);\r
+ Send_Command_Report(CMD_INITB, 8);\r
+ Send_Command_Report(Command, LAUNCHER_CMD_BUFFER_SIZE);\r
+ }\r
+ \r
+ CmdState = Command;\r
+}\r
+\r
+/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and\r
+ * starts the library USB task to begin the enumeration and USB management process.\r
+ */\r
+void EVENT_USB_DeviceAttached(void)\r
+{\r
+ LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
+}\r
+\r
+/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and\r
+ * stops the library USB task management process.\r
+ */\r
+void EVENT_USB_DeviceUnattached(void)\r
+{\r
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
+}\r
+\r
+/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully\r
+ * enumerated by the host and is now ready to be used by the application.\r
+ */\r
+void EVENT_USB_DeviceEnumerationComplete(void)\r
+{\r
+ LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
+}\r
+\r
+/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */\r
+void EVENT_USB_HostError(const uint8_t ErrorCode)\r
+{\r
+ USB_ShutDown();\r
+\r
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+ for(;;);\r
+}\r
+\r
+/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while\r
+ * enumerating an attached USB device.\r
+ */\r
+void EVENT_USB_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t SubErrorCode)\r
+{\r
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+}\r
+\r
+/** Reads in and discards the next report from the attached device. */\r
+void DiscardNextReport(void)\r
+{\r
+ /* Select and unfreeze HID data IN pipe */\r
+ Pipe_SelectPipe(HID_DATA_IN_PIPE);\r
+ Pipe_Unfreeze();\r
+\r
+ /* Check to see if a packet has been received */\r
+ if (!(Pipe_IsINReceived()))\r
+ {\r
+ /* Refreeze HID data IN pipe */\r
+ Pipe_Freeze();\r
+ \r
+ return;\r
+ }\r
+ \r
+ /* Clear the IN endpoint, ready for next data packet */\r
+ Pipe_ClearIN();\r
+ \r
+ /* Refreeze HID data IN pipe */\r
+ Pipe_Freeze();\r
+}\r
+\r
+/** Writes a report to the attached device.\r
+ *\r
+ * \param ReportOUTData Buffer containing the report to send to the device\r
+ * \param ReportLength Length of the report to send\r
+ */\r
+void WriteNextReport(uint8_t* ReportOUTData, uint16_t ReportLength)\r
+{\r
+ /* Select and unfreeze HID data OUT pipe */\r
+ Pipe_SelectPipe(HID_DATA_OUT_PIPE);\r
+ \r
+ /* Not all HID devices have an OUT endpoint (some require OUT reports to be sent over the\r
+ * control endpoint instead) - check to see if the OUT endpoint has been initialized */\r
+ if (Pipe_IsConfigured())\r
+ {\r
+ Pipe_Unfreeze();\r
+\r
+ /* Ensure pipe is ready to be written to before continuing */\r
+ if (!(Pipe_IsOUTReady()))\r
+ {\r
+ /* Refreeze the data OUT pipe */\r
+ Pipe_Freeze();\r
+ \r
+ return;\r
+ }\r
+ \r
+ /* Write out HID report data */\r
+ Pipe_Write_Stream_LE(ReportOUTData, ReportLength); \r
+ \r
+ /* Clear the OUT endpoint, send last data packet */\r
+ Pipe_ClearOUT();\r
+\r
+ /* Refreeze the data OUT pipe */\r
+ Pipe_Freeze();\r
+ }\r
+ else\r
+ {\r
+ /* Class specific request to send a HID report to the device */\r
+ USB_ControlRequest = (USB_Request_Header_t)\r
+ {\r
+ .bmRequestType = 0x21,\r
+ .bRequest = 0x09,\r
+ .wValue = 0x02,\r
+ .wIndex = 0x01,\r
+ .wLength = ReportLength,\r
+ };\r
+\r
+ /* Select the control pipe for the request transfer */\r
+ Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
+\r
+ /* Send the request to the device */\r
+ USB_Host_SendControlRequest(ReportOUTData);\r
+ }\r
+}\r
+\r
+/** Task to set the configuration of the attached device after it has been enumerated, and to read and process\r
+ * HID reports from the device and to send reports if desired.\r
+ */\r
+void HID_Host_Task(void)\r
+{\r
+ uint8_t ErrorCode;\r
+\r
+ /* Switch to determine what user-application handled host state the host state machine is in */\r
+ switch (USB_HostState)\r
+ {\r
+ case HOST_STATE_Addressed:\r
+ /* Get and process the configuration descriptor data */\r
+ if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)\r
+ {\r
+ /* Indicate error status */\r
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+\r
+ /* Wait until USB device disconnected */\r
+ while (USB_IsConnected);\r
+ break;\r
+ }\r
+\r
+ /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */\r
+ if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)\r
+ {\r
+ /* Indicate error status */\r
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
+ \r
+ /* Wait until USB device disconnected */\r
+ while (USB_IsConnected);\r
+ break;\r
+ }\r
+ \r
+ USB_HostState = HOST_STATE_Configured;\r
+ break;\r
+ case HOST_STATE_Configured:\r
+ USB_HostState = HOST_STATE_Ready;\r
+ break;\r
+ case HOST_STATE_Ready:\r
+ DiscardNextReport();\r
+\r
+ break;\r
+ }\r
+}\r
projects / pub / lufa.git / blobdiff