Subversion Repositories HelenOS

Rev

Rev 4401 | Rev 4509 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 4401 Rev 4416
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 <atomic.h>
 36 
#include <atomic.h>
37 
#include <ipc/ipc.h>
 37 
#include <ipc/ipc.h>
38 
#include <libadt/list.h>
 38 
#include <libadt/list.h>
39 
 
 39 
 
40 
#define DEVMAP_NAME_MAXLEN 512
 40 
#define DEVMAP_NAME_MAXLEN  255
- 
 
 41 
 
- 
 
 42 
typedef ipcarg_t dev_handle_t;
41 
 
 43 
 
42 
typedef enum {
 44 
typedef enum {
43 
    DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD,
 45 
    DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD,
44 
    DEVMAP_DRIVER_UNREGISTER,
 46 
    DEVMAP_DRIVER_UNREGISTER,
45 
    DEVMAP_DEVICE_REGISTER,
 47 
    DEVMAP_DEVICE_REGISTER,
46 
    DEVMAP_DEVICE_UNREGISTER,
 48 
    DEVMAP_DEVICE_UNREGISTER,
47 
    DEVMAP_DEVICE_GET_NAME,
 49 
    DEVMAP_DEVICE_GET_NAME,
48 
    DEVMAP_DEVICE_GET_HANDLE
 50 
    DEVMAP_DEVICE_GET_HANDLE,
- 
 
 51 
    DEVMAP_DEVICE_GET_COUNT,
- 
 
 52 
    DEVMAP_DEVICE_GET_DEVICES
49 
} devmap_request_t;
 53 
} devmap_request_t;
50 
 
 54 
 
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;
 - 
 
67 
 
 - 
 
68 
/** Info about registered device
 55 
/** Interface provided by devmap.
69 
 *
 56 
 *
70 
 */
 - 
 
71 
typedef struct {
 - 
 
72 
        /** Pointer to the previous and next device in the list of all devices */
 - 
 
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  */
 - 
 
78 
    int handle;
 - 
 
79 
        /** Device name */
 - 
 
80 
    char *name;
 - 
 
81 
        /** Device driver handling this device */
 - 
 
82 
    devmap_driver_t *driver;
 - 
 
83 
} devmap_device_t;
 - 
 
84 
 
 - 
 
85 
/** Interface provided by devmap.
 - 
 
86 
 * Every process that connects to devmap must ask one of following
 57 
 * Every process that connects to devmap must ask one of following
87 
 * interfaces otherwise connection will be refused.
 58 
 * interfaces otherwise connection will be refused.
- 
 
 59 
 *
88 
 */
 60 
 */
89 
typedef enum {
 61 
typedef enum {
90 
        /** Connect as device driver */
 62 
    /** Connect as device driver */
91 
    DEVMAP_DRIVER = 1, 
 63 
    DEVMAP_DRIVER = 1,
92 
        /** Connect as client */
 64 
    /** Connect as client */
93 
    DEVMAP_CLIENT,
 65 
    DEVMAP_CLIENT,
94 
        /** Create new connection to instance of device that
 66 
    /** Create new connection to instance of device that
95 
         * is specified by second argument of call. */
 67 
        is specified by second argument of call. */
96 
    DEVMAP_CONNECT_TO_DEVICE
 68 
    DEVMAP_CONNECT_TO_DEVICE
97 
} devmap_interface_t;
 69 
} devmap_interface_t;
98 
 
 70 
 
- 
 
 71 
typedef struct {
- 
 
 72 
    dev_handle_t handle;
- 
 
 73 
    char name[DEVMAP_NAME_MAXLEN + 1];
99 
#endif
 74 
} dev_desc_t;
100 
 
 75 
 
- 
 
 76 
#endif
101 
 
 77