source: mainline/uspace/drv/uhci-rhd/main.c@ c8dd5b1

/*
 * Copyright (c) 2011 Vojtech Horky, 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 <driver.h>
#include <usb_iface.h>

#include <errno.h>

#include <usb/debug.h>

#include "root_hub.h"

#define NAME "uhci-rhd"

static int usb_iface_get_hc_handle(device_t *dev, devman_handle_t *handle)
{
        assert(dev);
        assert(dev->driver_data);
        assert(handle);

        *handle = ((uhci_root_hub_t*)dev->driver_data)->hc_handle;
        usb_log_debug("Answering HC handle: %d.\n", *handle);

        return EOK;
}

static usb_iface_t uhci_rh_usb_iface = {
        .get_hc_handle = usb_iface_get_hc_handle
};

static device_ops_t uhci_rh_ops = {
        .interfaces[USB_DEV_IFACE] = &uhci_rh_usb_iface,
};

static int uhci_rh_add_device(device_t *device)
{
        if (!device)
                return ENOTSUP;

        usb_log_debug2("%s called device %d\n", __FUNCTION__, device->handle);
        device->ops = &uhci_rh_ops;

        uhci_root_hub_t *rh = malloc(sizeof(uhci_root_hub_t));
        if (!rh) {
                usb_log_error("Failed to allocate memory for driver instance.\n");
                return ENOMEM;
        }

        /* TODO: get register values from hc */
        int ret = uhci_root_hub_init(rh, (void*)0xc030, 4, device);
        if (ret != EOK) {
                usb_log_error("Failed(%d) to initialize driver instance.\n", ret);
                free(rh);
                return ret;
        }

        device->driver_data = rh;
        usb_log_info("Sucessfully initialized driver instance for device:%d.\n",
            device->handle);
        return EOK;
}

static driver_ops_t uhci_rh_driver_ops = {
        .add_device = uhci_rh_add_device,
};

static driver_t uhci_rh_driver = {
        .name = NAME,
        .driver_ops = &uhci_rh_driver_ops
};

int main(int argc, char *argv[])
{
        usb_log_enable(USB_LOG_LEVEL_DEBUG, NAME);
        return driver_main(&uhci_rh_driver);
}
/**
 * @}
 */