source: mainline/uspace/lib/c/include/ipc/devmap.h@ 79ae36dd

/*
 * Copyright (c) 2007 Josef Cejka
 * 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 devmap
 * @{
 */

#ifndef LIBC_IPC_DEVMAP_H_
#define LIBC_IPC_DEVMAP_H_

#include <ipc/common.h>

#define DEVMAP_NAME_MAXLEN  255

typedef sysarg_t devmap_handle_t;

typedef enum {
        DEV_HANDLE_NONE,
        DEV_HANDLE_NAMESPACE,
        DEV_HANDLE_DEVICE
} devmap_handle_type_t;

typedef enum {
        DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD,
        DEVMAP_DRIVER_UNREGISTER,
        DEVMAP_DEVICE_REGISTER,
        DEVMAP_DEVICE_UNREGISTER,
        DEVMAP_DEVICE_GET_HANDLE,
        DEVMAP_NAMESPACE_GET_HANDLE,
        DEVMAP_HANDLE_PROBE,
        DEVMAP_NULL_CREATE,
        DEVMAP_NULL_DESTROY,
        DEVMAP_GET_NAMESPACE_COUNT,
        DEVMAP_GET_DEVICE_COUNT,
        DEVMAP_GET_NAMESPACES,
        DEVMAP_GET_DEVICES
} devmap_request_t;

/** Interface provided by devmap.
 *
 * Every process that connects to devmap must ask one of following
 * interfaces otherwise connection will be refused.
 *
 */
typedef enum {
        /** Connect as device driver */
        DEVMAP_DRIVER = 1,
        /** Connect as client */
        DEVMAP_CLIENT,
        /** Create new connection to instance of device that
            is specified by second argument of call. */
        DEVMAP_CONNECT_TO_DEVICE
} devmap_interface_t;

typedef struct {
        devmap_handle_t handle;
        char name[DEVMAP_NAME_MAXLEN + 1];
} dev_desc_t;

#endif