/*
* Copyright (c) 2018 Ondrej Hlavaty
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - 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.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
/** @addtogroup libusbhost
* @{
*/
/** @file
*
* An implementation of bus keeper for xHCI. The (physical) HC itself takes
* care about addressing devices, so this implementation is actually simpler
* than those of [OUE]HCI.
*/
#ifndef XHCI_BUS_H
#define XHCI_BUS_H
#include <usb/host/bus.h>
typedef struct xhci_hc xhci_hc_t;
typedef struct xhci_device xhci_device_t;
/** Endpoint management structure */
typedef struct xhci_bus {
bus_t base; /**< Inheritance. Keep this first. */
xhci_hc_t *hc; /**< Pointer to managing HC (to issue commands) */
xhci_device_t **devices_by_slot; /**< Devices by Slot ID */
} xhci_bus_t;
extern errno_t xhci_bus_init(xhci_bus_t *, xhci_hc_t *);
extern void xhci_bus_fini(xhci_bus_t *);
static inline xhci_bus_t *bus_to_xhci_bus(bus_t *bus_base)
{
assert(bus_base);
return (xhci_bus_t *) bus_base;
}
#endif
/**
* @}
*/