| 1 | /*
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| 2 | * Copyright (c) 2011 Jan Vesely
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| 3 | * Copyright (c) 2017 Ondrej Hlavaty <aearsis@eideo.cz>
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * - Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * - Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * - The name of the author may not be used to endorse or promote products
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| 16 | * derived from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 | /** @addtogroup libusbhost
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | *
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| 34 | * Bus implementation common for OHCI, UHCI and EHCI.
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| 35 | */
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| 36 | #ifndef LIBUSBHOST_HOST_USB2_BUS_H
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| 37 | #define LIBUSBHOST_HOST_USB2_BUS_H
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| 38 |
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| 39 | #include <usb/usb.h>
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| 40 | #include <usb/host/bus.h>
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| 41 |
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| 42 | #include <adt/list.h>
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| 43 | #include <stdbool.h>
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| 44 |
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| 45 | typedef struct usb2_bus usb2_bus_t;
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| 46 | typedef struct endpoint endpoint_t;
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| 47 |
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| 48 | typedef size_t (*count_bw_func_t)(endpoint_t *, size_t);
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| 49 |
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| 50 | /** Endpoint management structure */
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| 51 | typedef struct usb2_bus {
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| 52 | bus_t base; /**< Inheritance - keep this first */
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| 53 |
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| 54 | /* Device bookkeeping */
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| 55 | struct {
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| 56 | usb_speed_t speed; /**< Device speed */
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| 57 | bool occupied; /**< The address is in use. */
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| 58 | // TODO: This can be stored in usb2_bus-specific device_t
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| 59 | list_t endpoint_list; /**< Store endpoint_t instances */
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| 60 | } devices[USB_ADDRESS_COUNT];
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| 61 |
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| 62 | /** Size of the bandwidth pool */
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| 63 | size_t free_bw;
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| 64 | /** The last reserved address */
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| 65 | usb_address_t last_address;
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| 66 | } usb2_bus_t;
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| 67 |
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| 68 | extern int usb2_bus_init(usb2_bus_t *, size_t, count_bw_func_t);
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| 69 |
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| 70 | #endif
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| 71 | /**
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| 72 | * @}
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| 73 | */
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