880 lines
25 KiB
C
880 lines
25 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 "action.h"
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#include "led.h"
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#include "sendchar.h"
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#include "debug.h"
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#ifdef SLEEP_LED_ENABLE
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# include "sleep_led.h"
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#endif
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#include "suspend.h"
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#include "wait.h"
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#include "usb_descriptor.h"
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#include "lufa.h"
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#include "usb_device_state.h"
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#include <util/atomic.h>
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#ifdef VIRTSER_ENABLE
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# include "virtser.h"
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#endif
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#ifdef MIDI_ENABLE
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# include "qmk_midi.h"
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#endif
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#ifdef RAW_ENABLE
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# include "raw_hid.h"
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#endif
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#ifdef WAIT_FOR_USB
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// TODO: Remove backwards compatibility with old define
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# define USB_WAIT_FOR_ENUMERATION
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#endif
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uint8_t keyboard_idle = 0;
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/* 0: Boot Protocol, 1: Report Protocol(default) */
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uint8_t keyboard_protocol = 1;
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static uint8_t keyboard_led_state = 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_nkro(report_nkro_t *report);
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static void send_mouse(report_mouse_t *report);
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static void send_extra(report_extra_t *report);
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host_driver_t lufa_driver = {keyboard_leds, send_keyboard, send_nkro, send_mouse, send_extra};
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void send_report(uint8_t endpoint, void *report, size_t size) {
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uint8_t timeout = 255;
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if (USB_DeviceState != DEVICE_STATE_Configured) return;
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Endpoint_SelectEndpoint(endpoint);
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/* Check if write ready for a polling interval around 10ms */
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while (timeout-- && !Endpoint_IsReadWriteAllowed()) {
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_delay_us(40);
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}
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if (!Endpoint_IsReadWriteAllowed()) return;
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Endpoint_Write_Stream_LE(report, size, NULL);
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Endpoint_ClearIN();
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}
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#ifdef VIRTSER_ENABLE
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// clang-format off
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USB_ClassInfo_CDC_Device_t cdc_device = {
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.Config = {
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.ControlInterfaceNumber = CCI_INTERFACE,
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.DataINEndpoint = {
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.Address = (CDC_IN_EPNUM | ENDPOINT_DIR_IN),
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.Size = CDC_EPSIZE,
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.Banks = 1
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},
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.DataOUTEndpoint = {
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.Address = (CDC_OUT_EPNUM | ENDPOINT_DIR_OUT),
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.Size = CDC_EPSIZE,
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.Banks = 1
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},
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.NotificationEndpoint = {
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.Address = (CDC_NOTIFICATION_EPNUM | ENDPOINT_DIR_IN),
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.Size = CDC_NOTIFICATION_EPSIZE,
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.Banks = 1
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}
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}
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};
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// clang-format on
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#endif
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#ifdef RAW_ENABLE
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/** \brief Raw HID Send
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*
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* FIXME: Needs doc
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*/
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void raw_hid_send(uint8_t *data, uint8_t length) {
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if (length != RAW_EPSIZE) return;
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send_report(RAW_IN_EPNUM, data, RAW_EPSIZE);
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}
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/** \brief Raw HID Receive
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*
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* FIXME: Needs doc
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*/
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__attribute__((weak)) void raw_hid_receive(uint8_t *data, uint8_t length) {
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// Users should #include "raw_hid.h" in their own code
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// and implement this function there. Leave this as weak linkage
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// so users can opt to not handle data coming in.
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}
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/** \brief Raw HID Task
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*
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* FIXME: Needs doc
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*/
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void raw_hid_task(void) {
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// Create a temporary buffer to hold the read in data from the host
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uint8_t data[RAW_EPSIZE];
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bool data_read = false;
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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) return;
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Endpoint_SelectEndpoint(RAW_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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// Check to see if the packet contains data
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if (Endpoint_IsReadWriteAllowed()) {
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/* Read data */
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Endpoint_Read_Stream_LE(data, sizeof(data), NULL);
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data_read = true;
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}
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// Finalize the stream transfer to receive the last packet
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Endpoint_ClearOUT();
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if (data_read) {
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raw_hid_receive(data, sizeof(data));
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}
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}
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}
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#endif
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/*******************************************************************************
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* Console
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******************************************************************************/
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#ifdef CONSOLE_ENABLE
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/** \brief Console Tasks
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*
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* FIXME: Needs doc
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*/
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static void console_flush_task(void) {
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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) return;
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uint8_t ep = Endpoint_GetCurrentEndpoint();
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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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// flush sendchar 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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void console_task(void) {
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// do nothing
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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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/*
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* Event Order of Plug in:
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* 0) EVENT_USB_Device_Connect
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* 1) EVENT_USB_Device_Suspend
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* 2) EVENT_USB_Device_Reset
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* 3) EVENT_USB_Device_Wake
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*/
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/** \brief Event USB Device Connect
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*
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* FIXME: Needs doc
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*/
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void EVENT_USB_Device_Connect(void) {
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print("[C]");
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/* For battery powered device */
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if (!USB_IsInitialized) {
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USB_Disable();
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USB_Init();
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USB_Device_EnableSOFEvents();
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}
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}
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/** \brief Event USB Device Connect
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*
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* FIXME: Needs doc
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*/
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void EVENT_USB_Device_Disconnect(void) {
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print("[D]");
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/* For battery powered device */
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USB_IsInitialized = false;
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/* TODO: This doesn't work. After several plug in/outs can not be enumerated.
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if (USB_IsInitialized) {
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USB_Disable(); // Disable all interrupts
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USB_Controller_Enable();
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USB_INT_Enable(USB_INT_VBUSTI);
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}
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*/
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}
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/** \brief Event USB Device Connect
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*
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* FIXME: Needs doc
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*/
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void EVENT_USB_Device_Reset(void) {
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print("[R]");
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usb_device_state_set_reset();
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}
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/** \brief Event USB Device Connect
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*
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* FIXME: Needs doc
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*/
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void EVENT_USB_Device_Suspend(void) {
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print("[S]");
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usb_device_state_set_suspend(USB_Device_ConfigurationNumber != 0, USB_Device_ConfigurationNumber);
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#ifdef SLEEP_LED_ENABLE
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sleep_led_enable();
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#endif
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}
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/** \brief Event USB Device Connect
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*
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* FIXME: Needs doc
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*/
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void EVENT_USB_Device_WakeUp(void) {
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print("[W]");
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#if defined(NO_USB_STARTUP_CHECK)
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suspend_wakeup_init();
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#endif
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usb_device_state_set_resume(USB_DeviceState == DEVICE_STATE_Configured, USB_Device_ConfigurationNumber);
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#ifdef SLEEP_LED_ENABLE
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sleep_led_disable();
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// NOTE: converters may not accept this
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led_set(host_keyboard_leds());
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#endif
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}
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#ifdef CONSOLE_ENABLE
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static bool console_flush = false;
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# define CONSOLE_FLUSH_SET(b) \
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do { \
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ATOMIC_BLOCK(ATOMIC_RESTORESTATE) { \
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console_flush = b; \
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} \
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} while (0)
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/** \brief Event USB Device Start Of Frame
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*
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* FIXME: Needs doc
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* called every 1ms
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*/
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void EVENT_USB_Device_StartOfFrame(void) {
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static uint8_t count;
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if (++count % 50) return;
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count = 0;
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if (!console_flush) return;
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console_flush_task();
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console_flush = false;
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}
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#endif
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/** \brief Event handler for the USB_ConfigurationChanged event.
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*
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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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* ATMega32u2 supports dual bank(ping-pong mode) only on endpoint 3 and 4,
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* it is safe to use single bank for all endpoints.
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*/
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void EVENT_USB_Device_ConfigurationChanged(void) {
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bool ConfigSuccess = true;
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#ifndef KEYBOARD_SHARED_EP
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/* Setup keyboard report endpoint */
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ConfigSuccess &= Endpoint_ConfigureEndpoint((KEYBOARD_IN_EPNUM | ENDPOINT_DIR_IN), EP_TYPE_INTERRUPT, KEYBOARD_EPSIZE, 1);
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#endif
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#if defined(MOUSE_ENABLE) && !defined(MOUSE_SHARED_EP)
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/* Setup mouse report endpoint */
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ConfigSuccess &= Endpoint_ConfigureEndpoint((MOUSE_IN_EPNUM | ENDPOINT_DIR_IN), EP_TYPE_INTERRUPT, MOUSE_EPSIZE, 1);
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#endif
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#ifdef SHARED_EP_ENABLE
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/* Setup shared report endpoint */
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ConfigSuccess &= Endpoint_ConfigureEndpoint((SHARED_IN_EPNUM | ENDPOINT_DIR_IN), EP_TYPE_INTERRUPT, SHARED_EPSIZE, 1);
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#endif
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#ifdef RAW_ENABLE
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/* Setup raw HID endpoints */
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ConfigSuccess &= Endpoint_ConfigureEndpoint((RAW_IN_EPNUM | ENDPOINT_DIR_IN), EP_TYPE_INTERRUPT, RAW_EPSIZE, 1);
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ConfigSuccess &= Endpoint_ConfigureEndpoint((RAW_OUT_EPNUM | ENDPOINT_DIR_OUT), EP_TYPE_INTERRUPT, RAW_EPSIZE, 1);
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#endif
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#ifdef CONSOLE_ENABLE
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/* Setup console endpoint */
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ConfigSuccess &= Endpoint_ConfigureEndpoint((CONSOLE_IN_EPNUM | ENDPOINT_DIR_IN), EP_TYPE_INTERRUPT, CONSOLE_EPSIZE, 1);
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#endif
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#ifdef MIDI_ENABLE
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/* Setup MIDI stream endpoints */
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ConfigSuccess &= Endpoint_ConfigureEndpoint((MIDI_STREAM_IN_EPNUM | ENDPOINT_DIR_IN), EP_TYPE_BULK, MIDI_STREAM_EPSIZE, 1);
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ConfigSuccess &= Endpoint_ConfigureEndpoint((MIDI_STREAM_OUT_EPNUM | ENDPOINT_DIR_OUT), EP_TYPE_BULK, MIDI_STREAM_EPSIZE, 1);
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#endif
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#ifdef VIRTSER_ENABLE
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/* Setup virtual serial endpoints */
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ConfigSuccess &= Endpoint_ConfigureEndpoint((CDC_NOTIFICATION_EPNUM | ENDPOINT_DIR_IN), EP_TYPE_INTERRUPT, CDC_NOTIFICATION_EPSIZE, 1);
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ConfigSuccess &= Endpoint_ConfigureEndpoint((CDC_OUT_EPNUM | ENDPOINT_DIR_OUT), EP_TYPE_BULK, CDC_EPSIZE, 1);
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ConfigSuccess &= Endpoint_ConfigureEndpoint((CDC_IN_EPNUM | ENDPOINT_DIR_IN), EP_TYPE_BULK, CDC_EPSIZE, 1);
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#endif
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#if defined(JOYSTICK_ENABLE) && !defined(JOYSTICK_SHARED_EP)
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/* Setup joystick endpoint */
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ConfigSuccess &= Endpoint_ConfigureEndpoint((JOYSTICK_IN_EPNUM | ENDPOINT_DIR_IN), EP_TYPE_INTERRUPT, JOYSTICK_EPSIZE, 1);
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#endif
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#if defined(DIGITIZER_ENABLE) && !defined(DIGITIZER_SHARED_EP)
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/* Setup digitizer endpoint */
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ConfigSuccess &= Endpoint_ConfigureEndpoint((DIGITIZER_IN_EPNUM | ENDPOINT_DIR_IN), EP_TYPE_INTERRUPT, DIGITIZER_EPSIZE, 1);
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#endif
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usb_device_state_set_configuration(USB_DeviceState == DEVICE_STATE_Configured, USB_Device_ConfigurationNumber);
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}
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/* FIXME: Expose this table in the docs somehow
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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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/** \brief Event handler for the USB_ControlRequest event.
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*
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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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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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case HID_REQ_GetReport:
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if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)) {
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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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// Interface
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switch (USB_ControlRequest.wIndex) {
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case KEYBOARD_INTERFACE:
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#if defined(SHARED_EP_ENABLE) && !defined(KEYBOARD_SHARED_EP)
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case SHARED_INTERFACE:
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#endif
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Endpoint_ClearSETUP();
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while (!(Endpoint_IsOUTReceived())) {
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if (USB_DeviceState == DEVICE_STATE_Unattached) return;
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}
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if (Endpoint_BytesInEndpoint() == 2) {
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uint8_t report_id = Endpoint_Read_8();
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if (report_id == REPORT_ID_KEYBOARD || report_id == REPORT_ID_NKRO) {
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keyboard_led_state = Endpoint_Read_8();
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}
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} else {
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keyboard_led_state = Endpoint_Read_8();
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}
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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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if (USB_ControlRequest.wIndex == KEYBOARD_INTERFACE) {
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Endpoint_ClearSETUP();
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while (!(Endpoint_IsINReady()))
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;
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Endpoint_Write_8(keyboard_protocol);
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Endpoint_ClearIN();
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Endpoint_ClearStatusStage();
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}
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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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if (USB_ControlRequest.wIndex == KEYBOARD_INTERFACE) {
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Endpoint_ClearSETUP();
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Endpoint_ClearStatusStage();
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keyboard_protocol = (USB_ControlRequest.wValue & 0xFF);
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clear_keyboard();
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}
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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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Endpoint_ClearSETUP();
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Endpoint_ClearStatusStage();
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keyboard_idle = ((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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Endpoint_ClearSETUP();
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while (!(Endpoint_IsINReady()))
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;
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Endpoint_Write_8(keyboard_idle);
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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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#ifdef VIRTSER_ENABLE
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CDC_Device_ProcessControlRequest(&cdc_device);
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#endif
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}
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/*******************************************************************************
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* Host driver
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******************************************************************************/
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/** \brief Keyboard LEDs
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*
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* FIXME: Needs doc
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*/
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static uint8_t keyboard_leds(void) {
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return keyboard_led_state;
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|
}
|
|
|
|
/** \brief Send Keyboard
|
|
*
|
|
* FIXME: Needs doc
|
|
*/
|
|
static void send_keyboard(report_keyboard_t *report) {
|
|
/* If we're in Boot Protocol, don't send any report ID or other funky fields */
|
|
if (!keyboard_protocol) {
|
|
send_report(KEYBOARD_IN_EPNUM, &report->mods, 8);
|
|
} else {
|
|
send_report(KEYBOARD_IN_EPNUM, report, KEYBOARD_REPORT_SIZE);
|
|
}
|
|
|
|
keyboard_report_sent = *report;
|
|
}
|
|
|
|
/** \brief Send NKRO
|
|
*
|
|
* FIXME: Needs doc
|
|
*/
|
|
static void send_nkro(report_nkro_t *report) {
|
|
#ifdef NKRO_ENABLE
|
|
send_report(SHARED_IN_EPNUM, report, sizeof(report_nkro_t));
|
|
#endif
|
|
}
|
|
|
|
/** \brief Send Mouse
|
|
*
|
|
* FIXME: Needs doc
|
|
*/
|
|
static void send_mouse(report_mouse_t *report) {
|
|
#ifdef MOUSE_ENABLE
|
|
send_report(MOUSE_IN_EPNUM, report, sizeof(report_mouse_t));
|
|
#endif
|
|
}
|
|
|
|
/** \brief Send Extra
|
|
*
|
|
* FIXME: Needs doc
|
|
*/
|
|
static void send_extra(report_extra_t *report) {
|
|
#ifdef EXTRAKEY_ENABLE
|
|
send_report(SHARED_IN_EPNUM, report, sizeof(report_extra_t));
|
|
#endif
|
|
}
|
|
|
|
void send_joystick(report_joystick_t *report) {
|
|
#ifdef JOYSTICK_ENABLE
|
|
send_report(JOYSTICK_IN_EPNUM, report, sizeof(report_joystick_t));
|
|
#endif
|
|
}
|
|
|
|
void send_programmable_button(report_programmable_button_t *report) {
|
|
#ifdef PROGRAMMABLE_BUTTON_ENABLE
|
|
send_report(SHARED_IN_EPNUM, report, sizeof(report_programmable_button_t));
|
|
#endif
|
|
}
|
|
|
|
void send_digitizer(report_digitizer_t *report) {
|
|
#ifdef DIGITIZER_ENABLE
|
|
send_report(DIGITIZER_IN_EPNUM, report, sizeof(report_digitizer_t));
|
|
#endif
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* sendchar
|
|
******************************************************************************/
|
|
#ifdef CONSOLE_ENABLE
|
|
# define SEND_TIMEOUT 5
|
|
/** \brief Send Char
|
|
*
|
|
* FIXME: Needs doc
|
|
*/
|
|
int8_t sendchar(uint8_t c) {
|
|
// Do not wait if the previous write has timed_out.
|
|
// Because sendchar() is called so many times, waiting each call causes big lag.
|
|
// The `timed_out` state is an approximation of the ideal `is_listener_disconnected?` state.
|
|
static bool timed_out = false;
|
|
|
|
// prevents console_flush_task() from running during sendchar() runs.
|
|
// or char will be lost. These two function is mutually exclusive.
|
|
CONSOLE_FLUSH_SET(false);
|
|
|
|
if (USB_DeviceState != DEVICE_STATE_Configured) return -1;
|
|
|
|
uint8_t ep = Endpoint_GetCurrentEndpoint();
|
|
Endpoint_SelectEndpoint(CONSOLE_IN_EPNUM);
|
|
if (!Endpoint_IsEnabled() || !Endpoint_IsConfigured()) {
|
|
goto ERROR_EXIT;
|
|
}
|
|
|
|
if (timed_out && !Endpoint_IsReadWriteAllowed()) {
|
|
goto ERROR_EXIT;
|
|
}
|
|
|
|
timed_out = false;
|
|
|
|
uint8_t timeout = SEND_TIMEOUT;
|
|
while (!Endpoint_IsReadWriteAllowed()) {
|
|
if (USB_DeviceState != DEVICE_STATE_Configured) {
|
|
goto ERROR_EXIT;
|
|
}
|
|
if (Endpoint_IsStalled()) {
|
|
goto ERROR_EXIT;
|
|
}
|
|
if (!(timeout--)) {
|
|
timed_out = true;
|
|
goto ERROR_EXIT;
|
|
}
|
|
_delay_ms(1);
|
|
}
|
|
|
|
Endpoint_Write_8(c);
|
|
|
|
// send when bank is full
|
|
if (!Endpoint_IsReadWriteAllowed()) {
|
|
while (!(Endpoint_IsINReady()))
|
|
;
|
|
Endpoint_ClearIN();
|
|
} else {
|
|
CONSOLE_FLUSH_SET(true);
|
|
}
|
|
|
|
Endpoint_SelectEndpoint(ep);
|
|
return 0;
|
|
ERROR_EXIT:
|
|
Endpoint_SelectEndpoint(ep);
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
/*******************************************************************************
|
|
* MIDI
|
|
******************************************************************************/
|
|
|
|
#ifdef MIDI_ENABLE
|
|
// clang-format off
|
|
|
|
USB_ClassInfo_MIDI_Device_t USB_MIDI_Interface = {
|
|
.Config = {
|
|
.StreamingInterfaceNumber = AS_INTERFACE,
|
|
.DataINEndpoint = {
|
|
.Address = (MIDI_STREAM_IN_EPNUM | ENDPOINT_DIR_IN),
|
|
.Size = MIDI_STREAM_EPSIZE,
|
|
.Banks = 1
|
|
},
|
|
.DataOUTEndpoint = {
|
|
.Address = (MIDI_STREAM_OUT_EPNUM | ENDPOINT_DIR_OUT),
|
|
.Size = MIDI_STREAM_EPSIZE,
|
|
.Banks = 1
|
|
}
|
|
}
|
|
};
|
|
|
|
// clang-format on
|
|
|
|
void send_midi_packet(MIDI_EventPacket_t *event) {
|
|
MIDI_Device_SendEventPacket(&USB_MIDI_Interface, event);
|
|
}
|
|
|
|
bool recv_midi_packet(MIDI_EventPacket_t *const event) {
|
|
return MIDI_Device_ReceiveEventPacket(&USB_MIDI_Interface, event);
|
|
}
|
|
|
|
#endif
|
|
|
|
/*******************************************************************************
|
|
* VIRTUAL SERIAL
|
|
******************************************************************************/
|
|
|
|
#ifdef VIRTSER_ENABLE
|
|
/** \brief Virtual Serial Init
|
|
*
|
|
* FIXME: Needs doc
|
|
*/
|
|
void virtser_init(void) {
|
|
cdc_device.State.ControlLineStates.DeviceToHost = CDC_CONTROL_LINE_IN_DSR;
|
|
CDC_Device_SendControlLineStateChange(&cdc_device);
|
|
}
|
|
|
|
/** \brief Virtual Serial Receive
|
|
*
|
|
* FIXME: Needs doc
|
|
*/
|
|
void virtser_recv(uint8_t c) __attribute__((weak));
|
|
void virtser_recv(uint8_t c) {
|
|
// Ignore by default
|
|
}
|
|
|
|
/** \brief Virtual Serial Task
|
|
*
|
|
* FIXME: Needs doc
|
|
*/
|
|
void virtser_task(void) {
|
|
uint16_t count = CDC_Device_BytesReceived(&cdc_device);
|
|
uint8_t ch;
|
|
for (; count; --count) {
|
|
ch = CDC_Device_ReceiveByte(&cdc_device);
|
|
virtser_recv(ch);
|
|
}
|
|
}
|
|
/** \brief Virtual Serial Send
|
|
*
|
|
* FIXME: Needs doc
|
|
*/
|
|
void virtser_send(const uint8_t byte) {
|
|
uint8_t timeout = 255;
|
|
uint8_t ep = Endpoint_GetCurrentEndpoint();
|
|
|
|
if (cdc_device.State.ControlLineStates.HostToDevice & CDC_CONTROL_LINE_OUT_DTR) {
|
|
/* IN packet */
|
|
Endpoint_SelectEndpoint(cdc_device.Config.DataINEndpoint.Address);
|
|
|
|
if (!Endpoint_IsEnabled() || !Endpoint_IsConfigured()) {
|
|
Endpoint_SelectEndpoint(ep);
|
|
return;
|
|
}
|
|
|
|
while (timeout-- && !Endpoint_IsReadWriteAllowed())
|
|
_delay_us(40);
|
|
|
|
Endpoint_Write_8(byte);
|
|
CDC_Device_Flush(&cdc_device);
|
|
|
|
if (Endpoint_IsINReady()) {
|
|
Endpoint_ClearIN();
|
|
}
|
|
|
|
Endpoint_SelectEndpoint(ep);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*******************************************************************************
|
|
* main
|
|
******************************************************************************/
|
|
/** \brief Setup MCU
|
|
*
|
|
* FIXME: Needs doc
|
|
*/
|
|
static void setup_mcu(void) {
|
|
/* Disable watchdog if enabled by bootloader/fuses */
|
|
MCUSR &= ~_BV(WDRF);
|
|
wdt_disable();
|
|
|
|
// For boards running at 3.3V and crystal at 16 MHz
|
|
#if (F_CPU == 8000000 && F_USB == 16000000)
|
|
/* Divide clock by 2 */
|
|
clock_prescale_set(clock_div_2);
|
|
#else /* Disable clock division */
|
|
clock_prescale_set(clock_div_1);
|
|
#endif
|
|
}
|
|
|
|
/** \brief Setup USB
|
|
*
|
|
* FIXME: Needs doc
|
|
*/
|
|
static void setup_usb(void) {
|
|
// Leonardo needs. Without this USB device is not recognized.
|
|
USB_Disable();
|
|
|
|
USB_Init();
|
|
|
|
// for console_flush_task
|
|
USB_Device_EnableSOFEvents();
|
|
}
|
|
|
|
void protocol_setup(void) {
|
|
#ifdef MIDI_ENABLE
|
|
setup_midi();
|
|
#endif
|
|
|
|
setup_mcu();
|
|
usb_device_state_init();
|
|
}
|
|
|
|
void protocol_pre_init(void) {
|
|
setup_usb();
|
|
sei();
|
|
|
|
/* wait for USB startup & debug output */
|
|
|
|
#ifdef USB_WAIT_FOR_ENUMERATION
|
|
while (USB_DeviceState != DEVICE_STATE_Configured) {
|
|
# if defined(INTERRUPT_CONTROL_ENDPOINT)
|
|
;
|
|
# else
|
|
USB_USBTask();
|
|
# endif
|
|
}
|
|
print("USB configured.\n");
|
|
#else
|
|
USB_USBTask();
|
|
#endif
|
|
}
|
|
|
|
void protocol_post_init(void) {
|
|
host_set_driver(&lufa_driver);
|
|
}
|
|
|
|
void protocol_pre_task(void) {
|
|
#if !defined(NO_USB_STARTUP_CHECK)
|
|
if (USB_DeviceState == DEVICE_STATE_Suspended) {
|
|
dprintln("suspending keyboard");
|
|
while (USB_DeviceState == DEVICE_STATE_Suspended) {
|
|
suspend_power_down();
|
|
if (suspend_wakeup_condition() && USB_Device_RemoteWakeupEnabled) {
|
|
USB_Device_SendRemoteWakeup();
|
|
clear_keyboard();
|
|
|
|
# if USB_SUSPEND_WAKEUP_DELAY > 0
|
|
// Some hubs, kvm switches, and monitors do
|
|
// weird things, with USB device state bouncing
|
|
// around wildly on wakeup, yielding race
|
|
// conditions that can corrupt the keyboard state.
|
|
//
|
|
// Pause for a while to let things settle...
|
|
wait_ms(USB_SUSPEND_WAKEUP_DELAY);
|
|
# endif
|
|
}
|
|
}
|
|
suspend_wakeup_init();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void protocol_post_task(void) {
|
|
#ifdef CONSOLE_ENABLE
|
|
console_task();
|
|
#endif
|
|
|
|
#ifdef MIDI_ENABLE
|
|
MIDI_Device_USBTask(&USB_MIDI_Interface);
|
|
#endif
|
|
|
|
#ifdef VIRTSER_ENABLE
|
|
virtser_task();
|
|
CDC_Device_USBTask(&cdc_device);
|
|
#endif
|
|
|
|
#if !defined(INTERRUPT_CONTROL_ENDPOINT)
|
|
USB_USBTask();
|
|
#endif
|
|
}
|
|
|
|
uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, const uint16_t wIndex, const void **const DescriptorAddress) {
|
|
return get_usb_descriptor(wValue, wIndex, USB_ControlRequest.wLength, DescriptorAddress);
|
|
}
|