477 lines
14 KiB
C
477 lines
14 KiB
C
/*
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* Copyright 2012 Jun Wako <wakojun@gmail.com>
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* This file is based on:
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* LUFA-120219/Demos/Device/Lowlevel/KeyboardMouse
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* LUFA-120219/Demos/Device/Lowlevel/GenericHID
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*/
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2012.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Copyright 2010 Denver Gingerich (denver [at] ossguy [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all 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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#include "report.h"
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#include "host.h"
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#include "host_driver.h"
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#include "keyboard.h"
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#include "sendchar.h"
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#include "debug.h"
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#include "descriptor.h"
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#include "lufa.h"
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static uint8_t idle_duration = 0;
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static uint8_t protocol_report = 1;
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static uint8_t keyboard_led_stats = 0;
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static report_keyboard_t keyboard_report_sent;
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/* Host driver */
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static uint8_t keyboard_leds(void);
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static void send_keyboard(report_keyboard_t *report);
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static void send_mouse(report_mouse_t *report);
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static void send_system(uint16_t data);
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static void send_consumer(uint16_t data);
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host_driver_t lufa_driver = {
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keyboard_leds,
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send_keyboard,
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send_mouse,
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send_system,
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send_consumer
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};
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/*******************************************************************************
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* Console
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******************************************************************************/
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#ifdef CONSOLE_ENABLE
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static void Console_Task(void)
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{
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/* Device must be connected and configured for the task to run */
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if (USB_DeviceState != DEVICE_STATE_Configured)
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return;
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uint8_t ep = Endpoint_GetCurrentEndpoint();
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#if 0
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// TODO: impl receivechar()/recvchar()
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Endpoint_SelectEndpoint(CONSOLE_OUT_EPNUM);
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/* Check to see if a packet has been sent from the host */
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if (Endpoint_IsOUTReceived())
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{
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/* Check to see if the packet contains data */
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if (Endpoint_IsReadWriteAllowed())
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{
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/* Create a temporary buffer to hold the read in report from the host */
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uint8_t ConsoleData[CONSOLE_EPSIZE];
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/* Read Console Report Data */
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Endpoint_Read_Stream_LE(&ConsoleData, sizeof(ConsoleData), NULL);
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/* Process Console Report Data */
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//ProcessConsoleHIDReport(ConsoleData);
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}
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/* Finalize the stream transfer to send the last packet */
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Endpoint_ClearOUT();
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}
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#endif
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/* IN packet */
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Endpoint_SelectEndpoint(CONSOLE_IN_EPNUM);
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if (!Endpoint_IsEnabled() || !Endpoint_IsConfigured()) {
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Endpoint_SelectEndpoint(ep);
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return;
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}
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// fill empty bank
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while (Endpoint_IsReadWriteAllowed())
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Endpoint_Write_8(0);
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// flash senchar packet
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if (Endpoint_IsINReady()) {
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Endpoint_ClearIN();
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}
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Endpoint_SelectEndpoint(ep);
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}
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#else
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static void Console_Task(void)
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{
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}
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#endif
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/*******************************************************************************
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* USB Events
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******************************************************************************/
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/** Event handler for the USB_Connect event. */
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void EVENT_USB_Device_Connect(void)
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{
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}
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/** Event handler for the USB_Disconnect event. */
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void EVENT_USB_Device_Disconnect(void)
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{
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}
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void EVENT_USB_Device_StartOfFrame(void)
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{
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Console_Task();
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}
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/** Event handler for the USB_ConfigurationChanged event.
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* This is fired when the host sets the current configuration of the USB device after enumeration.
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*/
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void EVENT_USB_Device_ConfigurationChanged(void)
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{
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bool ConfigSuccess = true;
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/* Setup Keyboard HID Report Endpoints */
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ConfigSuccess &= Endpoint_ConfigureEndpoint(KEYBOARD_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
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KEYBOARD_EPSIZE, ENDPOINT_BANK_SINGLE);
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#ifdef MOUSE_ENABLE
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/* Setup Mouse HID Report Endpoint */
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ConfigSuccess &= Endpoint_ConfigureEndpoint(MOUSE_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
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MOUSE_EPSIZE, ENDPOINT_BANK_SINGLE);
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#endif
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#ifdef EXTRAKEY_ENABLE
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/* Setup Extra HID Report Endpoint */
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ConfigSuccess &= Endpoint_ConfigureEndpoint(EXTRAKEY_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
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EXTRAKEY_EPSIZE, ENDPOINT_BANK_SINGLE);
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#endif
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#ifdef CONSOLE_ENABLE
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/* Setup Console HID Report Endpoints */
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ConfigSuccess &= Endpoint_ConfigureEndpoint(CONSOLE_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
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CONSOLE_EPSIZE, ENDPOINT_BANK_DOUBLE);
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ConfigSuccess &= Endpoint_ConfigureEndpoint(CONSOLE_OUT_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_OUT,
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CONSOLE_EPSIZE, ENDPOINT_BANK_SINGLE);
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#endif
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}
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/*
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Appendix G: HID Request Support Requirements
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The following table enumerates the requests that need to be supported by various types of HID class devices.
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Device type GetReport SetReport GetIdle SetIdle GetProtocol SetProtocol
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------------------------------------------------------------------------------------------
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Boot Mouse Required Optional Optional Optional Required Required
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Non-Boot Mouse Required Optional Optional Optional Optional Optional
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Boot Keyboard Required Optional Required Required Required Required
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Non-Boot Keybrd Required Optional Required Required Optional Optional
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Other Device Required Optional Optional Optional Optional Optional
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*/
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/** Event handler for the USB_ControlRequest event.
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* This is fired before passing along unhandled control requests to the library for processing internally.
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*/
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void EVENT_USB_Device_ControlRequest(void)
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{
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uint8_t* ReportData = NULL;
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uint8_t ReportSize = 0;
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/* Handle HID Class specific requests */
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switch (USB_ControlRequest.bRequest)
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{
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case HID_REQ_GetReport:
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if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
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{
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Endpoint_ClearSETUP();
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// Interface
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switch (USB_ControlRequest.wIndex) {
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case KEYBOARD_INTERFACE:
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// TODO: test/check
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ReportData = (uint8_t*)&keyboard_report_sent;
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ReportSize = sizeof(keyboard_report_sent);
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break;
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}
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/* Write the report data to the control endpoint */
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Endpoint_Write_Control_Stream_LE(ReportData, ReportSize);
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Endpoint_ClearOUT();
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}
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break;
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case HID_REQ_SetReport:
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if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
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{
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// Interface
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switch (USB_ControlRequest.wIndex) {
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case KEYBOARD_INTERFACE:
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Endpoint_ClearSETUP();
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while (!(Endpoint_IsOUTReceived())) {
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if (USB_DeviceState == DEVICE_STATE_Unattached)
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return;
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}
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keyboard_led_stats = Endpoint_Read_8();
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Endpoint_ClearOUT();
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Endpoint_ClearStatusStage();
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break;
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}
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}
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break;
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case HID_REQ_GetProtocol:
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if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
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{
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Endpoint_ClearSETUP();
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while (!(Endpoint_IsINReady()));
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Endpoint_Write_8(protocol_report);
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Endpoint_ClearIN();
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Endpoint_ClearStatusStage();
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}
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break;
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case HID_REQ_SetProtocol:
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if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
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{
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Endpoint_ClearSETUP();
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Endpoint_ClearStatusStage();
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protocol_report = ((USB_ControlRequest.wValue & 0xFF) != 0x00);
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}
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break;
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case HID_REQ_SetIdle:
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if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
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{
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Endpoint_ClearSETUP();
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Endpoint_ClearStatusStage();
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idle_duration = ((USB_ControlRequest.wValue & 0xFF00) >> 8);
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}
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break;
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case HID_REQ_GetIdle:
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if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
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{
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Endpoint_ClearSETUP();
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while (!(Endpoint_IsINReady()));
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Endpoint_Write_8(idle_duration);
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Endpoint_ClearIN();
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Endpoint_ClearStatusStage();
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}
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break;
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}
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}
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/*******************************************************************************
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* Host driver
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******************************************************************************/
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static uint8_t keyboard_leds(void)
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{
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return keyboard_led_stats;
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}
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static void send_keyboard(report_keyboard_t *report)
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{
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uint8_t timeout = 0;
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// TODO: handle NKRO report
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/* Select the Keyboard Report Endpoint */
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Endpoint_SelectEndpoint(KEYBOARD_IN_EPNUM);
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/* Check if Keyboard Endpoint Ready for Read/Write */
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while (--timeout && !Endpoint_IsReadWriteAllowed()) ;
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/* Write Keyboard Report Data */
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Endpoint_Write_Stream_LE(report, sizeof(report_keyboard_t), NULL);
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/* Finalize the stream transfer to send the last packet */
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Endpoint_ClearIN();
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keyboard_report_sent = *report;
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}
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static void send_mouse(report_mouse_t *report)
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{
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#ifdef MOUSE_ENABLE
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uint8_t timeout = 0;
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/* Select the Mouse Report Endpoint */
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Endpoint_SelectEndpoint(MOUSE_IN_EPNUM);
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/* Check if Mouse Endpoint Ready for Read/Write */
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while (--timeout && !Endpoint_IsReadWriteAllowed()) ;
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/* Write Mouse Report Data */
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Endpoint_Write_Stream_LE(report, sizeof(report_mouse_t), NULL);
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/* Finalize the stream transfer to send the last packet */
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Endpoint_ClearIN();
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#endif
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}
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static void send_system(uint16_t data)
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{
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uint8_t timeout = 0;
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report_extra_t r = {
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.report_id = REPORT_ID_SYSTEM,
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.usage = data
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};
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Endpoint_SelectEndpoint(EXTRAKEY_IN_EPNUM);
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while (--timeout && !Endpoint_IsReadWriteAllowed()) ;
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Endpoint_Write_Stream_LE(&r, sizeof(report_extra_t), NULL);
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Endpoint_ClearIN();
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}
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static void send_consumer(uint16_t data)
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{
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uint8_t timeout = 0;
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report_extra_t r = {
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.report_id = REPORT_ID_CONSUMER,
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.usage = data
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};
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Endpoint_SelectEndpoint(EXTRAKEY_IN_EPNUM);
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while (--timeout && !Endpoint_IsReadWriteAllowed()) ;
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Endpoint_Write_Stream_LE(&r, sizeof(report_extra_t), NULL);
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Endpoint_ClearIN();
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}
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/*******************************************************************************
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* sendchar
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******************************************************************************/
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#ifdef CONSOLE_ENABLE
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#define SEND_TIMEOUT 5
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int8_t sendchar(uint8_t c)
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{
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// Not wait once timeouted.
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// Because sendchar() is called so many times, waiting each call causes big lag.
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static bool timeouted = false;
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if (USB_DeviceState != DEVICE_STATE_Configured)
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return -1;
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uint8_t ep = Endpoint_GetCurrentEndpoint();
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Endpoint_SelectEndpoint(CONSOLE_IN_EPNUM);
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if (!Endpoint_IsEnabled() || !Endpoint_IsConfigured()) {
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Endpoint_SelectEndpoint(ep);
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return -1;
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}
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if (timeouted && !Endpoint_IsReadWriteAllowed()) {
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Endpoint_SelectEndpoint(ep);
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return - 1;
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}
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timeouted = false;
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uint8_t timeout = SEND_TIMEOUT;
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uint16_t prevFN = USB_Device_GetFrameNumber();
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while (!Endpoint_IsReadWriteAllowed()) {
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switch (USB_DeviceState) {
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case DEVICE_STATE_Unattached:
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case DEVICE_STATE_Suspended:
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return -1;
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}
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if (Endpoint_IsStalled()) {
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Endpoint_SelectEndpoint(ep);
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return -1;
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}
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if (prevFN != USB_Device_GetFrameNumber()) {
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if (!(timeout--)) {
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timeouted = true;
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Endpoint_SelectEndpoint(ep);
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return -1;
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}
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prevFN = USB_Device_GetFrameNumber();
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}
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}
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Endpoint_Write_8(c);
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// send when bank is full
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if (!Endpoint_IsReadWriteAllowed())
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Endpoint_ClearIN();
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Endpoint_SelectEndpoint(ep);
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return 0;
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}
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#else
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int8_t sendchar(uint8_t c)
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{
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return 0;
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}
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#endif
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/*******************************************************************************
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* main
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******************************************************************************/
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static void SetupHardware(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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clock_prescale_set(clock_div_1);
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// Leonardo needs. Without this USB device is not recognized.
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USB_Disable();
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USB_Init();
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// for Console_Task
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USB_Device_EnableSOFEvents();
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}
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int main(void) __attribute__ ((weak));
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int main(void)
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{
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SetupHardware();
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keyboard_init();
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host_set_driver(&lufa_driver);
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sei();
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// TODO: can't print here
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debug("LUFA init\n");
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while (1) {
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keyboard_task();
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#if !defined(INTERRUPT_CONTROL_ENDPOINT)
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USB_USBTask();
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#endif
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}
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}
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