Subversion Repositories HelenOS

Rev

Rev 2555 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2555 Rev 2594
1 
/*
 1 
/*
2 
 * Copyright (c) 2007 Josef Cejka
 2 
 * Copyright (c) 2007 Josef Cejka
3 
 * All rights reserved.
 3 
 * All rights reserved.
4 
 *
 4 
 *
5 
 * Redistribution and use in source and binary forms, with or without
 5 
 * Redistribution and use in source and binary forms, with or without
6 
 * modification, are permitted provided that the following conditions
 6 
 * modification, are permitted provided that the following conditions
7 
 * are met:
 7 
 * are met:
8 
 *
 8 
 *
9 
 * - Redistributions of source code must retain the above copyright
 9 
 * - Redistributions of source code must retain the above copyright
10 
 *   notice, this list of conditions and the following disclaimer.
 10 
 *   notice, this list of conditions and the following disclaimer.
11 
 * - Redistributions in binary form must reproduce the above copyright
 11 
 * - Redistributions in binary form must reproduce the above copyright
12 
 *   notice, this list of conditions and the following disclaimer in the
 12 
 *   notice, this list of conditions and the following disclaimer in the
13 
 *   documentation and/or other materials provided with the distribution.
 13 
 *   documentation and/or other materials provided with the distribution.
14 
 * - The name of the author may not be used to endorse or promote products
 14 
 * - The name of the author may not be used to endorse or promote products
15 
 *   derived from this software without specific prior written permission.
 15 
 *   derived from this software without specific prior written permission.
16 
 *
 16 
 *
17 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 17 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 18 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 19 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 20 
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 21 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 22 
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 23 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 24 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 25 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 26 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 
 */
 27 
 */
28 
 
 28 
 
29 
/** @addtogroup devmap
 29 
/** @addtogroup devmap
30 
 * @{
 30 
 * @{
31 
 */
 31 
 */
32 
 
 32 
 
33 
#ifndef DEVMAP_DEVMAP_H_
 33 
#ifndef DEVMAP_DEVMAP_H_
34 
#define DEVMAP_DEVMAP_H_
 34 
#define DEVMAP_DEVMAP_H_
35 
 
 35 
 
36 
#include <ipc/ipc.h>
 36 
#include <ipc/ipc.h>
37 
#include <libadt/list.h>
 37 
#include <libadt/list.h>
38 
 
 38 
 
39 
#define DEVMAP_NAME_MAXLEN 512
 39 
#define DEVMAP_NAME_MAXLEN 512
40 
 
 40 
 
41 
typedef enum {
 41 
typedef enum {
42 
    DEVMAP_REGISTER = IPC_FIRST_USER_METHOD,
 42 
    DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD,
43 
    DEVMAP_UNREGISTER,
 43 
    DEVMAP_DRIVER_UNREGISTER,
- 
 
 44 
    DEVMAP_DEVICE_CONNECT_ME_TO,
- 
 
 45 
    DEVMAP_DEVICE_REGISTER,
44 
    DEVMAP_CONNECT_TO_DEVICE,
 46 
    DEVMAP_DEVICE_UNREGISTER,
- 
 
 47 
    DEVMAP_DEVICE_GET_NAME,
45 
    DEVMAP_GET_HANDLE
 48 
    DEVMAP_DEVICE_GET_HANDLE
46 
} devmap_request_t;
 49 
} devmap_request_t;
47 
 
 50 
 
- 
 
 51 
/** Representation of device driver.
- 
 
 52 
 * Each driver is responsible for a set of devices.
- 
 
 53 
 */
- 
 
 54 
typedef struct {
- 
 
 55 
        /** Pointers to previous and next drivers in linked list */
- 
 
 56 
    link_t drivers;
- 
 
 57 
        /** Pointer to the linked list of devices controlled by
- 
 
 58 
         * this driver */
- 
 
 59 
    link_t devices;
- 
 
 60 
        /** Phone asociated with this driver */
- 
 
 61 
    ipcarg_t phone;
- 
 
 62 
        /** Device driver name */
- 
 
 63 
    char *name;
- 
 
 64 
        /** Futex for list of devices owned by this driver */
- 
 
 65 
    atomic_t devices_futex;
- 
 
 66 
} devmap_driver_t;
48 
 
 67 
 
49 
/** Info about registered device
 68 
/** Info about registered device
50 
 *
 69 
 *
51 
 */
 70 
 */
52 
typedef struct {
 71 
typedef struct {
- 
 
 72 
        /** Pointer to the previous and next device in the list of all devices */
53 
    link_t list;
 73 
    link_t devices;
- 
 
 74 
        /** Pointer to the previous and next device in the list of devices
- 
 
 75 
         owned by one driver */
- 
 
 76 
    link_t driver_devices;
- 
 
 77 
        /** Unique device identifier  */
54 
    int handle;
 78 
    int handle;
- 
 
 79 
        /** Device name */
55 
    char *name;
 80 
    char *name;
- 
 
 81 
        /** Device driver handling this device */
56 
    ipcarg_t phone;
 82 
    devmap_driver_t *driver;
57 
} devmap_device_t;
 83 
} devmap_device_t;
58 
 
 84 
 
- 
 
 85 
/** Interface provided by DevMap.
- 
 
 86 
 *
- 
 
 87 
 */
- 
 
 88 
typedef enum {
- 
 
 89 
    DEVMAP_DRIVER = 1,
- 
 
 90 
    DEVMAP_CLIENT
- 
 
 91 
} devmap_interface_t;
- 
 
 92 
 
59 
#endif
 93 
#endif
60 
 
 94 
 
61 
 
 95