source: mainline/uspace/drv/bus/usb/xhci/endpoint.c@ c10daa8

/*
 * Copyright (c) 2017 Petr Manek
 * 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 drvusbxhci
 * @{
 */
/** @file
 * @brief The host controller endpoint management.
 */

#include <usb/host/endpoint.h>

#include <errno.h>

#include "bus.h"
#include "endpoint.h"

int xhci_endpoint_init(xhci_endpoint_t *xhci_ep, xhci_bus_t *xhci_bus)
{
        assert(xhci_ep);
        assert(xhci_bus);

        bus_t *bus = &xhci_bus->base;
        endpoint_t *ep = &xhci_ep->base;

        endpoint_init(ep, bus);
        xhci_ep->device = NULL;

        usb_log_debug("XHCI Endpoint %d:%d initialized.", ep->target.address, ep->target.endpoint);

        return EOK;
}

void xhci_endpoint_fini(xhci_endpoint_t *xhci_ep)
{
        assert(xhci_ep);

        /* FIXME: Tear down TR's? */

        endpoint_t *ep = &xhci_ep->base;

        usb_log_debug("XHCI Endpoint %d:%d destroyed.", ep->target.address, ep->target.endpoint);
}

int xhci_device_init(xhci_device_t *dev, xhci_bus_t *bus)
{
        memset(&dev->endpoints, 0, sizeof(dev->endpoints));
        dev->active_endpoint_count = 0;
        return EOK;
}

void xhci_device_fini(xhci_device_t *dev)
{
        // TODO: Check that all endpoints are dead.
}

int xhci_device_add_endpoint(xhci_device_t *dev, xhci_endpoint_t *ep)
{
        assert(dev->address == ep->base.target.address);
        assert(!dev->endpoints[ep->base.target.endpoint]);
        assert(!ep->device);

        ep->device = dev;
        dev->endpoints[ep->base.target.endpoint] = ep;
        ++dev->active_endpoint_count;
        return EOK;
}

int xhci_device_remove_endpoint(xhci_device_t *dev, xhci_endpoint_t *ep)
{
        assert(dev->address == ep->base.target.address);
        assert(dev->endpoints[ep->base.target.endpoint]);
        assert(dev == ep->device);

        ep->device = NULL;
        dev->endpoints[ep->base.target.endpoint] = NULL;
        --dev->active_endpoint_count;
        return EOK;
}

xhci_endpoint_t * xhci_device_get_endpoint(xhci_device_t *dev, usb_endpoint_t ep)
{
        return dev->endpoints[ep];
}

/**
 * @}
 */