0,0 → 1,99 |
/* |
* 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 DEVMAP_DEVMAP_H_ |
#define DEVMAP_DEVMAP_H_ |
|
#include <ipc/ipc.h> |
#include <libadt/list.h> |
|
#define DEVMAP_NAME_MAXLEN 512 |
|
typedef enum { |
DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD, |
DEVMAP_DRIVER_UNREGISTER, |
DEVMAP_DEVICE_REGISTER, |
DEVMAP_DEVICE_UNREGISTER, |
DEVMAP_DEVICE_GET_NAME, |
DEVMAP_DEVICE_GET_HANDLE |
} devmap_request_t; |
|
/** Representation of device driver. |
* Each driver is responsible for a set of devices. |
*/ |
typedef struct { |
/** Pointers to previous and next drivers in linked list */ |
link_t drivers; |
/** Pointer to the linked list of devices controlled by |
* this driver */ |
link_t devices; |
/** Phone asociated with this driver */ |
ipcarg_t phone; |
/** Device driver name */ |
char *name; |
/** Futex for list of devices owned by this driver */ |
atomic_t devices_futex; |
} devmap_driver_t; |
|
/** Info about registered device |
* |
*/ |
typedef struct { |
/** Pointer to the previous and next device in the list of all devices */ |
link_t devices; |
/** Pointer to the previous and next device in the list of devices |
owned by one driver */ |
link_t driver_devices; |
/** Unique device identifier */ |
int handle; |
/** Device name */ |
char *name; |
/** Device driver handling this device */ |
devmap_driver_t *driver; |
} devmap_device_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; |
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#endif |
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