source: mainline/uspace/drv/usbhub/usbhub.h@ 79c8a96

/*
 * Copyright (c) 2010 Vojtech Horky
 * 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 drvusbhub
 * @{
 */
/** @file
 * @brief Hub driver.
 */
#ifndef DRV_USBHUB_USBHUB_H
#define DRV_USBHUB_USBHUB_H

#include <ipc/devman.h>
#include <usb/usb.h>
#include <ddf/driver.h>

#define NAME "usbhub"

#include <usb/hub.h>

#include <usb/pipes.h>
#include <usb/devdrv.h>


/** Hub status-change endpoint description
 *
 * For more see usb hub specification in 11.15.1 of
 */
extern usb_endpoint_description_t hub_status_change_endpoint_description;



/* Hub endpoints. */
/*typedef struct {
        usb_endpoint_pipe_t control;
        usb_endpoint_pipe_t status_change;
} usb_hub_endpoints_t;
*/


/** Information about attached hub. */
typedef struct {
        /** Number of ports. */
        int port_count;

        /** attached device handles, for each port one */
        usb_hc_attached_device_t * attached_devs;
        
        /** connection to hcd */
        usb_hc_connection_t connection;

        /** default address is used indicator
         *
         * If default address is requested by this device, it cannot
         * be requested by the same hub again, otherwise a deadlock will occur.
         */
        bool is_default_address_used;

        /** convenience pointer to status change pipe
         *
         * Status change pipe is initialized in usb_device structure. This is
         * pointer into this structure, so that it does not have to be
         * searched again and again for the 'right pipe'.
         */
        usb_endpoint_pipe_t * status_change_pipe;

        /** convenience pointer to control pipe
         *
         * Control pipe is initialized in usb_device structure. This is
         * pointer into this structure, so that it does not have to be
         * searched again and again for the 'right pipe'.
         */
        usb_endpoint_pipe_t * control_pipe;

        /** generic usb device data*/
        usb_device_t * usb_device;
} usb_hub_info_t;

/**
 * function running the hub-controlling loop.
 * @param hub_info_param hub info pointer
 */
int usb_hub_control_loop(void * hub_info_param);

/**
 * Check changes on specified hub
 * @param hub_info_param pointer to usb_hub_info_t structure
 * @return error code if there is problem when initializing communication with
 * hub, EOK otherwise
 */
int usb_hub_check_hub_changes(usb_hub_info_t * hub_info_param);


int usb_hub_add_device(usb_device_t * usb_dev);

#endif
/**
 * @}
 */