usb21_standard.h

/*
 * Copyright (c) 2016, Devan Lai
 *
 * Permission to use, copy, modify, and/or distribute this software
 * for any purpose with or without fee is hereby granted, provided
 * that the above copyright notice and this permission notice
 * appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS 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, DIRECT, 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.
 */

#ifndef USB21_STANDARD_H_INCLUDED
#define USB21_STANDARD_H_INCLUDED

#include <libopencm3/usb/usbd.h>

/* USB 3.1 Descriptor Types - Table 9-6 */
#define USB_DT_BOS 15
#define USB_DT_DEVICE_CAPABILITY 16

struct usb_device_capability_descriptor {
  uint8_t bLength;
  uint8_t bDescriptorType;
  uint8_t bDevCapabilityType;
} __attribute__((packed));

struct usb_bos_descriptor {
  uint8_t bLength;
  uint8_t bDescriptorType;
  uint16_t wTotalLength;
  uint8_t bNumDeviceCaps;
  /* Descriptor ends here.  The following are used internally: */
  const struct usb_device_capability_descriptor** capabilities;
} __attribute__((packed));

#define USB_DT_BOS_SIZE 5

/* USB Device Capability Types - USB 3.1 Table 9-14 */
#define USB_DC_PLATFORM 5

extern void usb21_setup(usbd_device* usbd_dev,
                        const struct usb_bos_descriptor* binary_object_store);

#endif