| 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; |
| |
| #endif |
| |