From 74298f8ca11dc8d3b0359d1d4e124d6494c3eeac Mon Sep 17 00:00:00 2001 From: Nicolas Schodet Date: Fri, 10 Apr 2009 01:15:42 +0200 Subject: * digital/avr/modules/usb: - imported LUFA. --- .../lufa/Demos/MouseHostViaInt/MouseHostViaInt.c | 320 +++++++++++++++++++++ 1 file changed, 320 insertions(+) create mode 100644 digital/avr/modules/usb/lufa/Demos/MouseHostViaInt/MouseHostViaInt.c (limited to 'digital/avr/modules/usb/lufa/Demos/MouseHostViaInt/MouseHostViaInt.c') diff --git a/digital/avr/modules/usb/lufa/Demos/MouseHostViaInt/MouseHostViaInt.c b/digital/avr/modules/usb/lufa/Demos/MouseHostViaInt/MouseHostViaInt.c new file mode 100644 index 00000000..c4c37785 --- /dev/null +++ b/digital/avr/modules/usb/lufa/Demos/MouseHostViaInt/MouseHostViaInt.c @@ -0,0 +1,320 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2009. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, and distribute this software + and its documentation for any purpose and without fee is hereby + granted, 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 disclaim 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 MouseHostViaInt demo. This file contains the main tasks of + * the demo and is responsible for the initial application hardware configuration. + */ + + #include "MouseHostViaInt.h" + +/* Project Tags, for reading out using the ButtLoad project */ +BUTTLOADTAG(ProjName, "LUFA Mouse Host App"); +BUTTLOADTAG(BuildTime, __TIME__); +BUTTLOADTAG(BuildDate, __DATE__); +BUTTLOADTAG(LUFAVersion, "LUFA V" LUFA_VERSION_STRING); + +/* Scheduler Task List */ +TASK_LIST +{ + { Task: USB_USBTask , TaskStatus: TASK_STOP }, + { Task: USB_Mouse_Host , TaskStatus: TASK_STOP }, +}; + + +/** Main program entry point. This routine configures the hardware required by the application, then + * starts the scheduler to run the application tasks. + */ +int main(void) +{ + /* Disable watchdog if enabled by bootloader/fuses */ + MCUSR &= ~(1 << WDRF); + wdt_disable(); + + /* Disable Clock Division */ + SetSystemClockPrescaler(0); + + /* Hardware Initialization */ + SerialStream_Init(9600, false); + LEDs_Init(); + + /* Indicate USB not ready */ + UpdateStatus(Status_USBNotReady); + + /* Initialize Scheduler so that it can be used */ + Scheduler_Init(); + + /* Initialize USB Subsystem */ + USB_Init(); + + /* Startup message */ + puts_P(PSTR(ESC_RESET ESC_BG_WHITE ESC_INVERSE_ON ESC_ERASE_DISPLAY + "Mouse Host Demo running.\r\n" ESC_INVERSE_OFF)); + + /* Scheduling - routine never returns, so put this last in the main function */ + Scheduler_Start(); +} + +/** 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. + */ +EVENT_HANDLER(USB_DeviceAttached) +{ + puts_P(PSTR("Device Attached.\r\n")); + UpdateStatus(Status_USBEnumerating); + + /* Start USB management task to enumerate the device */ + Scheduler_SetTaskMode(USB_USBTask, TASK_RUN); +} + +/** 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. + */ +EVENT_HANDLER(USB_DeviceUnattached) +{ + /* Stop mouse and USB management task */ + Scheduler_SetTaskMode(USB_USBTask, TASK_STOP); + Scheduler_SetTaskMode(USB_Mouse_Host, TASK_STOP); + + puts_P(PSTR("Device Unattached.\r\n")); + UpdateStatus(Status_USBNotReady); +} + +/** 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. + */ +EVENT_HANDLER(USB_DeviceEnumerationComplete) +{ + /* Start Mouse Host task */ + Scheduler_SetTaskMode(USB_Mouse_Host, TASK_RUN); + + /* Indicate device enumeration complete */ + UpdateStatus(Status_USBReady); +} + +/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */ +EVENT_HANDLER(USB_HostError) +{ + USB_ShutDown(); + + puts_P(PSTR(ESC_BG_RED "Host Mode Error\r\n")); + printf_P(PSTR(" -- Error Code %d\r\n"), ErrorCode); + + UpdateStatus(Status_HardwareError); + for(;;); +} + +/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occured while + * enumerating an attached USB device. + */ +EVENT_HANDLER(USB_DeviceEnumerationFailed) +{ + puts_P(PSTR(ESC_BG_RED "Dev Enum Error\r\n")); + printf_P(PSTR(" -- Error Code %d\r\n"), ErrorCode); + printf_P(PSTR(" -- Sub Error Code %d\r\n"), SubErrorCode); + printf_P(PSTR(" -- In State %d\r\n"), USB_HostState); + + UpdateStatus(Status_EnumerationError); +} + +/** Function to manage status updates to the user. This is done via LEDs on the given board, if available, but may be changed to + * log to a serial port, or anything else that is suitable for status updates. + * + * \param CurrentStatus Current status of the system, from the MouseHostViaInt_StatusCodes_t enum + */ +void UpdateStatus(uint8_t CurrentStatus) +{ + uint8_t LEDMask = LEDS_NO_LEDS; + + /* Set the LED mask to the appropriate LED mask based on the given status code */ + switch (CurrentStatus) + { + case Status_USBNotReady: + LEDMask = (LEDS_LED1); + break; + case Status_USBEnumerating: + LEDMask = (LEDS_LED1 | LEDS_LED2); + break; + case Status_USBReady: + LEDMask = (LEDS_LED2); + break; + case Status_EnumerationError: + case Status_HardwareError: + LEDMask = (LEDS_LED1 | LEDS_LED3); + break; + } + + /* Set the board LEDs to the new LED mask */ + LEDs_SetAllLEDs(LEDMask); +} + +/** Task to set the configuration of the attached device after it has been enumerated, and to enable the pipe + * interrupts so that reports can be processed as they arrive from the device. + */ +TASK(USB_Mouse_Host) +{ + uint8_t ErrorCode; + + /* Switch to determine what user-application handled host state the host state machine is in */ + switch (USB_HostState) + { + case HOST_STATE_Addressed: + /* Standard request to set the device configuration to configuration 1 */ + USB_HostRequest = (USB_Host_Request_Header_t) + { + bmRequestType: (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE), + bRequest: REQ_SetConfiguration, + wValue: 1, + wIndex: 0, + wLength: 0, + }; + + /* Send the request, display error and wait for device detatch if request fails */ + if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful) + { + puts_P(PSTR("Control Error (Set Configuration).\r\n")); + printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode); + + /* Indicate error via status LEDs */ + UpdateStatus(Status_EnumerationError); + + /* Wait until USB device disconnected */ + while (USB_IsConnected); + break; + } + + USB_HostState = HOST_STATE_Configured; + break; + case HOST_STATE_Configured: + puts_P(PSTR("Getting Config Data.\r\n")); + + /* Get and process the configuration descriptor data */ + if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead) + { + if (ErrorCode == ControlError) + puts_P(PSTR("Control Error (Get Configuration).\r\n")); + else + puts_P(PSTR("Invalid Device.\r\n")); + + printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode); + + /* Indicate error via status LEDs */ + UpdateStatus(Status_EnumerationError); + + /* Wait until USB device disconnected */ + while (USB_IsConnected); + break; + } + + /* HID class request to set the mouse protocol to the Boot Protocol */ + USB_HostRequest = (USB_Host_Request_Header_t) + { + bmRequestType: (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE), + bRequest: REQ_SetProtocol, + wValue: 0, + wIndex: 0, + wLength: 0, + }; + + /* Send the request, display error and wait for device detatch if request fails */ + if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful) + { + puts_P(PSTR("Control Error (Set Protocol).\r\n")); + printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode); + + /* Indicate error status */ + UpdateStatus(Status_EnumerationError); + + /* Wait until USB device disconnected */ + while (USB_IsConnected); + break; + } + + puts_P(PSTR("Mouse Enumerated.\r\n")); + + USB_HostState = HOST_STATE_Ready; + break; + } +} + +/** Interrupt handler for the Endpoint/Pipe interrupt vector. This interrupt fires each time an enabled + * pipe interrupt occurs on a pipe which has had that interrupt enabled. + */ +ISR(ENDPOINT_PIPE_vect, ISR_BLOCK) +{ + USB_MouseReport_Data_t MouseReport; + + /* Check to see if the mouse data pipe has caused the interrupt */ + if (Pipe_HasPipeInterrupted(MOUSE_DATAPIPE)) + { + /* Clear the pipe interrupt, and select the mouse pipe */ + Pipe_ClearPipeInterrupt(MOUSE_DATAPIPE); + Pipe_SelectPipe(MOUSE_DATAPIPE); + + /* Check to see if the pipe IN interrupt has fired */ + if (USB_INT_HasOccurred(PIPE_INT_IN) && USB_INT_IsEnabled(PIPE_INT_IN)) + { + uint8_t LEDMask = LEDS_NO_LEDS; + + /* Clear interrupt flag */ + USB_INT_Clear(PIPE_INT_IN); + + /* Read in mouse report data */ + Pipe_Read_Stream_LE(&MouseReport, sizeof(MouseReport)); + + /* Clear the IN endpoint, ready for next data packet */ + Pipe_ClearCurrentBank(); + + /* Alter status LEDs according to mouse X movement */ + if (MouseReport.X > 0) + LEDMask |= LEDS_LED1; + else if (MouseReport.X < 0) + LEDMask |= LEDS_LED2; + + /* Alter status LEDs according to mouse Y movement */ + if (MouseReport.Y > 0) + LEDMask |= LEDS_LED3; + else if (MouseReport.Y < 0) + LEDMask |= LEDS_LED4; + + /* Alter status LEDs according to mouse button position */ + if (MouseReport.Button) + LEDMask = LEDS_ALL_LEDS; + + LEDs_SetAllLEDs(LEDMask); + + /* Print mouse report data through the serial port */ + printf_P(PSTR("dX:%2d dY:%2d Button:%d\r\n"), MouseReport.X, + MouseReport.Y, + MouseReport.Button); + } + } +} -- cgit v1.2.3