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/*
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/*
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 * Copyright (c) 2007 Josef Cejka
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 * Copyright (c) 2007 Josef Cejka
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * are met:
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 *
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 *
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 * - Redistributions of source code must retain the above copyright
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *   derived from this software without specific prior written permission.
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 *
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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/** @addtogroup devmap
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/** @addtogroup devmap
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 * @{
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 * @{
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 */
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 */
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#ifndef DEVMAP_DEVMAP_H_
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#ifndef DEVMAP_DEVMAP_H_
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#define DEVMAP_DEVMAP_H_
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#define DEVMAP_DEVMAP_H_
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- 
 
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#include <atomic.h>
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#include <ipc/ipc.h>
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#include <ipc/ipc.h>
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#include <libadt/list.h>
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#include <adt/list.h>
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#define DEVMAP_NAME_MAXLEN  255
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#define DEVMAP_NAME_MAXLEN 512
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typedef ipcarg_t dev_handle_t;
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typedef enum {
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typedef enum {
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    DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD,
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    DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD,
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    DEVMAP_DRIVER_UNREGISTER,
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    DEVMAP_DRIVER_UNREGISTER,
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    DEVMAP_DEVICE_REGISTER,
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    DEVMAP_DEVICE_REGISTER,
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    DEVMAP_DEVICE_UNREGISTER,
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    DEVMAP_DEVICE_UNREGISTER,
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    DEVMAP_DEVICE_GET_NAME,
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    DEVMAP_DEVICE_GET_NAME,
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    DEVMAP_DEVICE_GET_HANDLE
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    DEVMAP_DEVICE_GET_HANDLE,
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    DEVMAP_DEVICE_NULL_CREATE,
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    DEVMAP_DEVICE_NULL_DESTROY,
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    DEVMAP_DEVICE_GET_COUNT,
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    DEVMAP_DEVICE_GET_DEVICES
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} devmap_request_t;
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} devmap_request_t;
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/** Representation of device driver.
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 * Each driver is responsible for a set of devices.
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 */
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typedef struct {
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        /** Pointers to previous and next drivers in linked list */
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    link_t drivers;
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        /** Pointer to the linked list of devices controlled by
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         * this driver */
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    link_t devices;
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        /** Phone asociated with this driver */
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    ipcarg_t phone;
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        /** Device driver name */
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    char *name;
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        /** Futex for list of devices owned by this driver */
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    atomic_t devices_futex;
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} devmap_driver_t;
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/** Info about registered device
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/** Interface provided by devmap.
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 *
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 *
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 */
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typedef struct {
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        /** Pointer to the previous and next device in the list of all devices */
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    link_t devices;
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        /** Pointer to the previous and next device in the list of devices
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         owned by one driver */
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    link_t driver_devices;
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        /** Unique device identifier  */
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    int handle;
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        /** Device name */
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    char *name;
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        /** Device driver handling this device */
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    devmap_driver_t *driver;
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} devmap_device_t;
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/** Interface provided by devmap.
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 * Every process that connects to devmap must ask one of following
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 * Every process that connects to devmap must ask one of following
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 * interfaces otherwise connection will be refused.
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 * interfaces otherwise connection will be refused.
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 *
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 */
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 */
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typedef enum {
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typedef enum {
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        /** Connect as device driver */
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    /** Connect as device driver */
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    DEVMAP_DRIVER = 1, 
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    DEVMAP_DRIVER = 1,
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        /** Connect as client */
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    /** Connect as client */
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    DEVMAP_CLIENT,
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    DEVMAP_CLIENT,
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        /** Create new connection to instance of device that
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    /** Create new connection to instance of device that
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         * is specified by second argument of call. */
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        is specified by second argument of call. */
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    DEVMAP_CONNECT_TO_DEVICE
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    DEVMAP_CONNECT_TO_DEVICE
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} devmap_interface_t;
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} devmap_interface_t;
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typedef struct {
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    dev_handle_t handle;
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    char name[DEVMAP_NAME_MAXLEN + 1];
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#endif
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} dev_desc_t;
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#endif
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