qmk_firmware/tmk_core/protocol/usb_descriptor.h

/*
 * 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