Moved all source to the trunk directory.
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Dean Camera
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c1a1b6eeec
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268 changed files with 88549 additions and 0 deletions
340
Demos/KeyboardHostWithParser/KeyboardHostWithParser.c
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340
Demos/KeyboardHostWithParser/KeyboardHostWithParser.c
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2009.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, and distribute this software
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and its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* Main source file for the KeyboardHostWithParser demo. This file contains the main tasks of
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* the demo and is responsible for the initial application hardware configuration.
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*/
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#include "KeyboardHostWithParser.h"
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/* Project Tags, for reading out using the ButtLoad project */
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BUTTLOADTAG(ProjName, "LUFA KBD Host App");
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BUTTLOADTAG(BuildTime, __TIME__);
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BUTTLOADTAG(BuildDate, __DATE__);
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BUTTLOADTAG(LUFAVersion, "LUFA V" LUFA_VERSION_STRING);
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/* Scheduler Task List */
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TASK_LIST
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{
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{ Task: USB_USBTask , TaskStatus: TASK_STOP },
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{ Task: USB_Keyboard_Host , TaskStatus: TASK_STOP },
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};
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/** Main program entry point. This routine configures the hardware required by the application, then
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* starts the scheduler to run the application tasks.
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*/
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int main(void)
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{
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/* Disable watchdog if enabled by bootloader/fuses */
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MCUSR &= ~(1 << WDRF);
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wdt_disable();
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/* Disable Clock Division */
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SetSystemClockPrescaler(0);
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/* Hardware Initialization */
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SerialStream_Init(9600, false);
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LEDs_Init();
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/* Indicate USB not ready */
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UpdateStatus(Status_USBNotReady);
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/* Initialize Scheduler so that it can be used */
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Scheduler_Init();
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/* Initialize USB Subsystem */
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USB_Init();
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/* Startup message */
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puts_P(PSTR(ESC_RESET ESC_BG_WHITE ESC_INVERSE_ON ESC_ERASE_DISPLAY
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"Keyboard Host Demo running.\r\n" ESC_INVERSE_OFF));
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/* Scheduling - routine never returns, so put this last in the main function */
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Scheduler_Start();
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}
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/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
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* starts the library USB task to begin the enumeration and USB management process.
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*/
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EVENT_HANDLER(USB_DeviceAttached)
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{
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puts_P(PSTR("Device Attached.\r\n"));
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UpdateStatus(Status_USBEnumerating);
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/* Start USB management task to enumerate the device */
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Scheduler_SetTaskMode(USB_USBTask, TASK_RUN);
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}
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/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
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* stops the library USB task management process.
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*/
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EVENT_HANDLER(USB_DeviceUnattached)
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{
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/* Stop keyboard and USB management task */
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Scheduler_SetTaskMode(USB_USBTask, TASK_STOP);
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Scheduler_SetTaskMode(USB_Keyboard_Host, TASK_STOP);
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puts_P(PSTR("\r\nDevice Unattached.\r\n"));
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UpdateStatus(Status_USBNotReady);
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}
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/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
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* enumerated by the host and is now ready to be used by the application.
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*/
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EVENT_HANDLER(USB_DeviceEnumerationComplete)
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{
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/* Start Keyboard Host task */
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Scheduler_SetTaskMode(USB_Keyboard_Host, TASK_RUN);
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/* Indicate device enumeration complete */
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UpdateStatus(Status_USBReady);
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}
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/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
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EVENT_HANDLER(USB_HostError)
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{
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USB_ShutDown();
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puts_P(PSTR(ESC_BG_RED "Host Mode Error\r\n"));
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printf_P(PSTR(" -- Error Code %d\r\n"), ErrorCode);
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UpdateStatus(Status_HardwareError);
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for(;;);
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}
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/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occured while
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* enumerating an attached USB device.
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*/
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EVENT_HANDLER(USB_DeviceEnumerationFailed)
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{
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puts_P(PSTR(ESC_BG_RED "Dev Enum Error\r\n"));
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printf_P(PSTR(" -- Error Code %d\r\n"), ErrorCode);
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printf_P(PSTR(" -- Sub Error Code %d\r\n"), SubErrorCode);
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printf_P(PSTR(" -- In State %d\r\n"), USB_HostState);
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UpdateStatus(Status_EnumerationError);
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}
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/** Function to manage status updates to the user. This is done via LEDs on the given board, if available, but may be changed to
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* log to a serial port, or anything else that is suitable for status updates.
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*
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* \param CurrentStatus Current status of the system, from the KeyboardHostWithParser_StatusCodes_t enum
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*/
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void UpdateStatus(uint8_t CurrentStatus)
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{
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uint8_t LEDMask = LEDS_NO_LEDS;
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/* Set the LED mask to the appropriate LED mask based on the given status code */
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switch (CurrentStatus)
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{
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case Status_USBNotReady:
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LEDMask = (LEDS_LED1);
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break;
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case Status_USBEnumerating:
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LEDMask = (LEDS_LED1 | LEDS_LED2);
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break;
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case Status_USBReady:
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LEDMask = (LEDS_LED2);
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break;
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case Status_EnumerationError:
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case Status_HardwareError:
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LEDMask = (LEDS_LED1 | LEDS_LED3);
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break;
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case Status_Busy:
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LEDMask = (LEDS_LED1 | LEDS_LED4);
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break;
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}
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/* Set the board LEDs to the new LED mask */
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LEDs_SetAllLEDs(LEDMask);
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}
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/** Task to set the configuration of the attached device after it has been enumerated, and to read and process
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* the HID report descriptor and HID reports from the device and display the results onto the board LEDs.
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*/
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TASK(USB_Keyboard_Host)
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{
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uint8_t ErrorCode;
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switch (USB_HostState)
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{
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case HOST_STATE_Addressed:
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/* Standard request to set the device configuration to configuration 1 */
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USB_HostRequest = (USB_Host_Request_Header_t)
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{
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bmRequestType: (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),
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bRequest: REQ_SetConfiguration,
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wValue: 1,
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wIndex: 0,
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wLength: 0,
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};
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/* Send the request, display error and wait for device detatch if request fails */
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if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
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{
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puts_P(PSTR("Control Error (Set Configuration).\r\n"));
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printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode);
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/* Indicate error via status LEDs */
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UpdateStatus(Status_EnumerationError);
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/* Wait until USB device disconnected */
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while (USB_IsConnected);
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break;
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}
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USB_HostState = HOST_STATE_Configured;
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break;
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case HOST_STATE_Configured:
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puts_P(PSTR("Getting Config Data.\r\n"));
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/* Get and process the configuration descriptor data */
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if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
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{
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if (ErrorCode == ControlError)
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puts_P(PSTR("Control Error (Get Configuration).\r\n"));
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else
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puts_P(PSTR("Invalid Device.\r\n"));
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printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode);
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/* Indicate error via status LEDs */
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UpdateStatus(Status_EnumerationError);
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/* Wait until USB device disconnected */
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while (USB_IsConnected);
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break;
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}
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puts_P(PSTR("Processing HID Report.\r\n"));
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/* LEDs one and two on to indicate busy processing */
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UpdateStatus(Status_Busy);
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/* Get and process the device's first HID report descriptor */
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if ((ErrorCode = GetHIDReportData()) != ParseSuccessful)
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{
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puts_P(PSTR("Report Parse Error.\r\n"));
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printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode);
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/* Indicate error via status LEDs */
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UpdateStatus(Status_EnumerationError);
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/* Wait until USB device disconnected */
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while (USB_IsConnected);
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break;
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}
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/* All LEDs off - ready to indicate keypresses */
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UpdateStatus(Status_USBReady);
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puts_P(PSTR("Keyboard Enumerated.\r\n"));
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USB_HostState = HOST_STATE_Ready;
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break;
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case HOST_STATE_Ready:
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/* Select and unfreeze keyboard data pipe */
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Pipe_SelectPipe(KEYBOARD_DATAPIPE);
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Pipe_Unfreeze();
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/* Check if data has been received from the attached keyboard */
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if (Pipe_ReadWriteAllowed())
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{
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/* Create buffer big enough for the report */
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uint8_t KeyboardReport[Pipe_BytesInPipe()];
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/* Load in the keyboard report */
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Pipe_Read_Stream_LE(KeyboardReport, Pipe_BytesInPipe());
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/* Clear the IN endpoint, ready for next data packet */
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Pipe_ClearCurrentBank();
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/* Check each HID report item in turn, looking for keyboard scan code reports */
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for (uint8_t ReportNumber = 0; ReportNumber < HIDReportInfo.TotalReportItems; ReportNumber++)
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{
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/* Create a tempoary item pointer to the next report item */
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HID_ReportItem_t* ReportItem = &HIDReportInfo.ReportItems[ReportNumber];
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/* Check if the current report item is a keyboard scancode */
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if ((ReportItem->Attributes.Usage.Page == USAGE_PAGE_KEYBOARD) &&
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(ReportItem->Attributes.BitSize == 8) &&
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(ReportItem->Attributes.Logical.Maximum > 1) &&
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(ReportItem->ItemType == REPORT_ITEM_TYPE_In))
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{
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/* Retrieve the keyboard scancode from the report data retrieved from the device */
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bool FoundData = GetReportItemInfo(KeyboardReport, ReportItem);
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/* For multi-report devices - if the requested data was not in the issued report, continue */
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if (!(FoundData))
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continue;
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/* Key code is an unsigned char in length, cast to the appropriate type */
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uint8_t KeyCode = (uint8_t)ReportItem->Value;
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/* If scancode is non-zero, a key is being pressed */
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if (KeyCode)
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{
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/* Toggle status LED to indicate keypress */
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if (LEDs_GetLEDs() & LEDS_LED2)
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LEDs_TurnOffLEDs(LEDS_LED2);
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else
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LEDs_TurnOnLEDs(LEDS_LED2);
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char PressedKey = 0;
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/* Convert scancode to printable character if alphanumeric */
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if ((KeyCode >= 0x04) && (KeyCode <= 0x1D))
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PressedKey = (KeyCode - 0x04) + 'A';
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else if ((KeyCode >= 0x1E) && (KeyCode <= 0x27))
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PressedKey = (KeyCode - 0x1E) + '0';
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else if (KeyCode == 0x2C)
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PressedKey = ' ';
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else if (KeyCode == 0x28)
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PressedKey = '\n';
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/* Print the pressed key character out through the serial port if valid */
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if (PressedKey)
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putchar(PressedKey);
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}
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/* Once a scancode is found, stop scanning through the report items */
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break;
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}
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}
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}
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/* Freeze keyboard data pipe */
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Pipe_Freeze();
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break;
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}
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}
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