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qmk-firmware/tmk_core/protocol/usb_descriptor.h
James Laird-Wah 39bd760faf Use a single endpoint for HID reports (#3951) 
* Unify multiple HID interfaces into one

This reduces the number of USB endpoints required, which frees them up
for other things.

NKRO and EXTRAKEY always use the shared endpoint.

By default, MOUSEKEY also uses it. This means it won't work as a Boot
Procotol mouse in some BIOSes, etc. If you really think your
keyboard needs to work as a mouse in your BIOS, set
MOUSE_SHARED_EP = no in your rules.mk.

By default, the core keyboard does not use the shared endpoint, as not
all BIOSes are standards compliant and that's one place you don't want
to find out your keyboard doesn't work.. If you are really confident,
you can set KEYBOARD_SHARED_EP = yes to use the shared endpoint here
too.

* unify endpoints: ChibiOS protocol implementation

* fixup: missing #ifdef EXTRAKEY_ENABLEs

broke build on AVR with EXTRAKEY disabled

* endpoints: restore error when too many endpoints required

* lufa: wait up to 10ms to send keyboard input

This avoids packets being dropped when two reports are sent in quick
succession (eg. releasing a dual role key).

* endpoints: fix compile on ARM_ATSAM

* endpoint: ARM_ATSAM fixes

No longer use wrong or unexpected endpoint IDs

* endpoints: accommodate VUSB protocol

V-USB has its own, understandably simple ideas about the report formats.
It already blasts the mouse and extrakeys through one endpoint with
report IDs. We just stay out of its way.

* endpoints: document new endpoint configuration options

* endpoints: respect keyboard_report->mods in NKRO

The caller(s) of host_keyboard_send expect to be able to just drop
modifiers in the mods field and not worry about whether NKRO is in use.
This is a good thing. So we just shift it over if needs be.

* endpoints: report.c: update for new keyboard_report format
2018-11-15 22:22:05 -08:00

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/*
* Copyright 2012,2013 Jun Wako <wakojun@gmail.com>
* This file is based on:
* LUFA-120219/Demos/Device/Lowlevel/KeyboardMouse
* LUFA-120219/Demos/Device/Lowlevel/GenericHID
*/
/*
LUFA Library
Copyright (C) Dean Camera, 2012.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Copyright 2010 Denver Gingerich (denver [at] ossguy [dot] com)
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of the author not be used in
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaim all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
/** \file
*
* Header file for Descriptors.c.
*/
#ifndef _DESCRIPTORS_H_
#define _DESCRIPTORS_H_
#include <LUFA/Drivers/USB/USB.h>
#ifdef PROTOCOL_CHIBIOS
#include "hal.h"
#endif
typedef struct
{
USB_Descriptor_Configuration_Header_t Config;
#ifndef KEYBOARD_SHARED_EP
// Keyboard HID Interface
USB_Descriptor_Interface_t Keyboard_Interface;
USB_HID_Descriptor_HID_t Keyboard_HID;
USB_Descriptor_Endpoint_t Keyboard_INEndpoint;
#endif
#if defined(MOUSE_ENABLE) && !defined(MOUSE_SHARED_EP)
// Mouse HID Interface
USB_Descriptor_Interface_t Mouse_Interface;
USB_HID_Descriptor_HID_t Mouse_HID;
USB_Descriptor_Endpoint_t Mouse_INEndpoint;
#endif
#if defined(SHARED_EP_ENABLE)
USB_Descriptor_Interface_t Shared_Interface;
USB_HID_Descriptor_HID_t Shared_HID;
USB_Descriptor_Endpoint_t Shared_INEndpoint;
#endif
#if defined(RAW_ENABLE)
// Raw HID Interface
USB_Descriptor_Interface_t Raw_Interface;
USB_HID_Descriptor_HID_t Raw_HID;
USB_Descriptor_Endpoint_t Raw_INEndpoint;
USB_Descriptor_Endpoint_t Raw_OUTEndpoint;
#endif
#ifdef CONSOLE_ENABLE
// Console HID Interface
USB_Descriptor_Interface_t Console_Interface;
USB_HID_Descriptor_HID_t Console_HID;
USB_Descriptor_Endpoint_t Console_INEndpoint;
USB_Descriptor_Endpoint_t Console_OUTEndpoint;
#endif
#ifdef MIDI_ENABLE
USB_Descriptor_Interface_Association_t Audio_Interface_Association;
// MIDI Audio Control Interface
USB_Descriptor_Interface_t Audio_ControlInterface;
USB_Audio_Descriptor_Interface_AC_t Audio_ControlInterface_SPC;
// MIDI Audio Streaming Interface
USB_Descriptor_Interface_t Audio_StreamInterface;
USB_MIDI_Descriptor_AudioInterface_AS_t Audio_StreamInterface_SPC;
USB_MIDI_Descriptor_InputJack_t MIDI_In_Jack_Emb;
USB_MIDI_Descriptor_InputJack_t MIDI_In_Jack_Ext;
USB_MIDI_Descriptor_OutputJack_t MIDI_Out_Jack_Emb;
USB_MIDI_Descriptor_OutputJack_t MIDI_Out_Jack_Ext;
USB_Audio_Descriptor_StreamEndpoint_Std_t MIDI_In_Jack_Endpoint;
USB_MIDI_Descriptor_Jack_Endpoint_t MIDI_In_Jack_Endpoint_SPC;
USB_Audio_Descriptor_StreamEndpoint_Std_t MIDI_Out_Jack_Endpoint;
USB_MIDI_Descriptor_Jack_Endpoint_t MIDI_Out_Jack_Endpoint_SPC;
#endif
#ifdef VIRTSER_ENABLE
USB_Descriptor_Interface_Association_t CDC_Interface_Association;
// CDC Control Interface
USB_Descriptor_Interface_t CDC_CCI_Interface;
USB_CDC_Descriptor_FunctionalHeader_t CDC_Functional_Header;
USB_CDC_Descriptor_FunctionalACM_t CDC_Functional_ACM;
USB_CDC_Descriptor_FunctionalUnion_t CDC_Functional_Union;
USB_Descriptor_Endpoint_t CDC_NotificationEndpoint;
// CDC Data Interface
USB_Descriptor_Interface_t CDC_DCI_Interface;
USB_Descriptor_Endpoint_t CDC_DataOutEndpoint;
USB_Descriptor_Endpoint_t CDC_DataInEndpoint;
#endif
} USB_Descriptor_Configuration_t;
/* index of interface */
enum usb_interfaces {
#if !defined(KEYBOARD_SHARED_EP)
KEYBOARD_INTERFACE,
#else
# define KEYBOARD_INTERFACE SHARED_INTERFACE
#endif
// It is important that the Raw HID interface is at a constant
// interface number, to support Linux/OSX platforms and chrome.hid
// If Raw HID is enabled, let it be always 1.
#if defined(RAW_ENABLE)
RAW_INTERFACE,
#endif
#if defined(MOUSE_ENABLE) && !defined(MOUSE_SHARED_EP)
MOUSE_INTERFACE,
#endif
#if defined(SHARED_EP_ENABLE)
SHARED_INTERFACE,
#endif
#if defined(CONSOLE_ENABLE)
CONSOLE_INTERFACE,
#endif
#if defined(MIDI_ENABLE)
AC_INTERFACE,
AS_INTERFACE,
#endif
#if defined(VIRTSER_ENABLE)
CCI_INTERFACE,
CDI_INTERFACE,
#endif
TOTAL_INTERFACES
};
#define NEXT_EPNUM __COUNTER__
enum usb_endpoints {
__unused_epnum__ = NEXT_EPNUM, /* EP numbering starts at 1 */
#if !defined(KEYBOARD_SHARED_EP)
KEYBOARD_IN_EPNUM = NEXT_EPNUM,
#else
# define KEYBOARD_IN_EPNUM SHARED_IN_EPNUM
#endif
#if defined(MOUSE_ENABLE) && !defined(MOUSE_SHARED_EP)
MOUSE_IN_EPNUM = NEXT_EPNUM,
#else
# define MOUSE_IN_EPNUM SHARED_IN_EPNUM
#endif
#if defined(RAW_ENABLE)
RAW_IN_EPNUM = NEXT_EPNUM,
RAW_OUT_EPNUM = NEXT_EPNUM,
#endif
#if defined(SHARED_EP_ENABLE)
SHARED_IN_EPNUM = NEXT_EPNUM,
#endif
#if defined(CONSOLE_ENABLE)
CONSOLE_IN_EPNUM = NEXT_EPNUM,
#ifdef PROTOCOL_CHIBIOS
// ChibiOS has enough memory and descriptor to actually enable the endpoint
// It could use the same endpoint numbers, as that's supported by ChibiOS
// But the QMK code currently assumes that the endpoint numbers are different
CONSOLE_OUT_EPNUM = NEXT_EPNUM,
#else
#define CONSOLE_OUT_EPNUM CONSOLE_IN_EPNUM
#endif
#endif
#ifdef MIDI_ENABLE
MIDI_STREAM_IN_EPNUM = NEXT_EPNUM,
MIDI_STREAM_OUT_EPNUM = NEXT_EPNUM,
# define MIDI_STREAM_IN_EPADDR (ENDPOINT_DIR_IN | MIDI_STREAM_IN_EPNUM)
# define MIDI_STREAM_OUT_EPADDR (ENDPOINT_DIR_OUT | MIDI_STREAM_OUT_EPNUM)
#endif
#ifdef VIRTSER_ENABLE
CDC_NOTIFICATION_EPNUM = NEXT_EPNUM,
CDC_IN_EPNUM = NEXT_EPNUM,
CDC_OUT_EPNUM = NEXT_EPNUM,
# define CDC_NOTIFICATION_EPADDR (ENDPOINT_DIR_IN | CDC_NOTIFICATION_EPNUM)
# define CDC_IN_EPADDR (ENDPOINT_DIR_IN | CDC_IN_EPNUM)
# define CDC_OUT_EPADDR (ENDPOINT_DIR_OUT | CDC_OUT_EPNUM)
#endif
};
#if defined(PROTOCOL_LUFA)
/* LUFA tells us total endpoints including control */
#define MAX_ENDPOINTS (ENDPOINT_TOTAL_ENDPOINTS - 1)
#elif defined(PROTOCOL_CHIBIOS)
/* ChibiOS gives us number of available user endpoints, not control */
#define MAX_ENDPOINTS USB_MAX_ENDPOINTS
#endif
/* TODO - ARM_ATSAM */
#if (NEXT_EPNUM - 1) > MAX_ENDPOINTS
# error There are not enough available endpoints to support all functions. Remove some in the rules.mk file. (MOUSEKEY, EXTRAKEY, CONSOLE, NKRO, MIDI, SERIAL, STENO)
#endif
#define KEYBOARD_EPSIZE 8
#define SHARED_EPSIZE 32
#define MOUSE_EPSIZE 8
#define RAW_EPSIZE 32
#define CONSOLE_EPSIZE 32
#define MIDI_STREAM_EPSIZE 64
#define CDC_NOTIFICATION_EPSIZE 8
#define CDC_EPSIZE 16
uint16_t get_usb_descriptor(const uint16_t wValue,
const uint16_t wIndex,
const void** const DescriptorAddress);
/* new API */
#if LUFA_VERSION_INTEGER < 0x140302
#undef VERSION_BCD
#define VERSION_BCD(Major, Minor, Revision) \
CPU_TO_LE16( ((Major & 0xFF) << 8) | \
((Minor & 0x0F) << 4) | \
(Revision & 0x0F) )
#endif
#endif
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