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/* $FreeBSD$ */
/*-
* Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _USB2_DEFS_H_
#define _USB2_DEFS_H_
/* Definition of some USB constants */
#define USB_BUS_MAX 256 /* units */
#define USB_DEV_MAX 128 /* units */
#define USB_IFACE_MAX 32 /* units */
#define USB_EP_MAX (2*16) /* hardcoded */
#define USB_FIFO_MAX (4 * USB_EP_MAX)
#define USB_ROOT_HUB_ADDR 1 /* index */
#define USB_MIN_DEVICES 2 /* unused + root HUB */
#define USB_MAX_DEVICES USB_DEV_MAX /* including virtual root HUB and
* address zero */
#define USB_MAX_ENDPOINTS USB_EP_MAX /* 2 directions on 16 endpoints */
#define USB_UNCONFIG_INDEX 0xFF /* internal use only */
#define USB_IFACE_INDEX_ANY 0xFF /* internal use only */
#define USB_START_ADDR 0 /* default USB device BUS address
* after USB bus reset */
#define USB_CONTROL_ENDPOINT 0 /* default control endpoint */
#define USB_FRAMES_PER_SECOND_FS 1000 /* full speed */
#define USB_FRAMES_PER_SECOND_HS 8000 /* high speed */
#define USB_FS_BYTES_PER_HS_UFRAME 188 /* bytes */
#define USB_HS_MICRO_FRAMES_MAX 8 /* units */
/* sanity checks */
#if (USB_FIFO_MAX < USB_EP_MAX)
#error "There cannot be less FIFOs than USB endpoints."
#endif
#if (USB_FIFO_MAX & 1)
#error "Number of FIFOs must be odd."
#endif
#if (USB_EP_MAX < (2*16))
#error "Number of hardware USB endpoints cannot be less than 32."
#endif
#if (USB_MAX_DEVICES < USB_MIN_DEVICES)
#error "Minimum number of devices is greater than maximum number of devices."
#endif
#if (USB_ROOT_HUB_ADDR >= USB_MIN_DEVICES)
#error "The root hub address must be less than USB_MIN_DEVICES."
#endif
#endif /* _USB2_DEFS_H_ */
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