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author | thompsa <thompsa@FreeBSD.org> | 2009-02-23 18:31:00 +0000 |
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committer | thompsa <thompsa@FreeBSD.org> | 2009-02-23 18:31:00 +0000 |
commit | 111a707d99983acd73c4212036000aa3e88425b6 (patch) | |
tree | 691e9b9009214e6138d3913e4c022c897e386667 /sys/dev/usb/usb_defs.h | |
parent | 124e83aa64b26f6b00736a45c3e25dfda8c7060e (diff) | |
download | FreeBSD-src-111a707d99983acd73c4212036000aa3e88425b6.zip FreeBSD-src-111a707d99983acd73c4212036000aa3e88425b6.tar.gz |
Move the new USB stack into its new home.
Diffstat (limited to 'sys/dev/usb/usb_defs.h')
-rw-r--r-- | sys/dev/usb/usb_defs.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/sys/dev/usb/usb_defs.h b/sys/dev/usb/usb_defs.h new file mode 100644 index 0000000..64caf39 --- /dev/null +++ b/sys/dev/usb/usb_defs.h @@ -0,0 +1,77 @@ +/* $FreeBSD$ */ +/*- + * 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_ */ |