source: mainline/uspace/drv/uhci-hcd/root_hub.c@ 0fc764f

/*
 * Copyright (c) 2011 Jan Vesely
 * 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 usb
 * @{
 */
/** @file
 * @brief UHCI driver
 */
#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <usb_iface.h>
#include <usb/debug.h>

#include "root_hub.h"
#include "uhci.h"

static int usb_iface_get_hc_handle_rh_impl(ddf_fun_t *root_hub_fun,
    devman_handle_t *handle)
{
        ddf_fun_t *hc_fun = root_hub_fun->driver_data;
        assert(hc_fun != NULL);

        *handle = hc_fun->handle;

        return EOK;
}

static int usb_iface_get_address_rh_impl(ddf_fun_t *fun, devman_handle_t handle,
    usb_address_t *address)
{
        assert(fun);
        ddf_fun_t *hc_fun = fun->driver_data;
        assert(hc_fun);
        uhci_t *hc = fun_to_uhci(hc_fun);
        assert(hc);

        usb_address_t addr = usb_address_keeping_find(&hc->address_manager,
            handle);
        if (addr < 0) {
                return addr;
        }

        if (address != NULL) {
                *address = addr;
        }

        return EOK;
}

usb_iface_t usb_iface_root_hub_fun_impl = {
        .get_hc_handle = usb_iface_get_hc_handle_rh_impl,
        .get_address = usb_iface_get_address_rh_impl
};

static ddf_dev_ops_t root_hub_ops = {
        .interfaces[USB_DEV_IFACE] = &usb_iface_root_hub_fun_impl
};

/*----------------------------------------------------------------------------*/
int setup_root_hub(ddf_fun_t **fun, ddf_dev_t *hc)
{
        assert(fun);
        int ret;

        ddf_fun_t *hub = ddf_fun_create(hc, fun_inner, "root-hub");
        if (!hub) {
                usb_log_error("Failed to create root hub device structure.\n");
                return ENOMEM;
        }

        char *match_str;
        ret = asprintf(&match_str, "usb&uhci&root-hub");
        if (ret < 0) {
                usb_log_error("Failed to create root hub match string.\n");
                ddf_fun_destroy(hub);
                return ENOMEM;
        }

        ret = ddf_fun_add_match_id(hub, match_str, 100);
        if (ret != EOK) {
                usb_log_error("Failed to add root hub match id.\n");
                ddf_fun_destroy(hub);
                return ENOMEM;
        }

        hub->ops = &root_hub_ops;

        *fun = hub;
        return EOK;
}
/**
 * @}
 */