WebSVN – HelenOS – Diff – /trunk/uspace/lib/libc/include/ipc/devmap.h


/*
 * 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
 
 

Rev 2635	Rev 3076
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_DRIVER_REGISTER = IPC_FIRST_USER_METHOD,	42	DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD,
43	DEVMAP_DRIVER_UNREGISTER,	43	DEVMAP_DRIVER_UNREGISTER,
44	DEVMAP_DEVICE_REGISTER,	44	DEVMAP_DEVICE_REGISTER,
45	DEVMAP_DEVICE_UNREGISTER,	45	DEVMAP_DEVICE_UNREGISTER,
46	DEVMAP_DEVICE_GET_NAME,	46	DEVMAP_DEVICE_GET_NAME,
47	DEVMAP_DEVICE_GET_HANDLE	47	DEVMAP_DEVICE_GET_HANDLE
48	} devmap_request_t;	48	} devmap_request_t;
49		49
50	/** Representation of device driver.	50	/** Representation of device driver.
51	* Each driver is responsible for a set of devices.	51	* Each driver is responsible for a set of devices.
52	*/	52	*/
53	typedef struct {	53	typedef struct {
54	/** Pointers to previous and next drivers in linked list */	54	/** Pointers to previous and next drivers in linked list */
55	link_t drivers;	55	link_t drivers;
56	/** Pointer to the linked list of devices controlled by	56	/** Pointer to the linked list of devices controlled by
57	* this driver */	57	* this driver */
58	link_t devices;	58	link_t devices;
59	/** Phone asociated with this driver */	59	/** Phone asociated with this driver */
60	ipcarg_t phone;	60	ipcarg_t phone;
61	/** Device driver name */	61	/** Device driver name */
62	char *name;	62	char *name;
63	/** Futex for list of devices owned by this driver */	63	/** Futex for list of devices owned by this driver */
64	atomic_t devices_futex;	64	atomic_t devices_futex;
65	} devmap_driver_t;	65	} devmap_driver_t;
66		66
67	/** Info about registered device	67	/** Info about registered device
68	*	68	*
69	*/	69	*/
70	typedef struct {	70	typedef struct {
71	/** Pointer to the previous and next device in the list of all devices */	71	/** Pointer to the previous and next device in the list of all devices */
72	link_t devices;	72	link_t devices;
73	/** Pointer to the previous and next device in the list of devices	73	/** Pointer to the previous and next device in the list of devices
74	owned by one driver */	74	owned by one driver */
75	link_t driver_devices;	75	link_t driver_devices;
76	/** Unique device identifier */	76	/** Unique device identifier */
77	int handle;	77	int handle;
78	/** Device name */	78	/** Device name */
79	char *name;	79	char *name;
80	/** Device driver handling this device */	80	/** Device driver handling this device */
81	devmap_driver_t *driver;	81	devmap_driver_t *driver;
82	} devmap_device_t;	82	} devmap_device_t;
83		83
84	/** Interface provided by devmap.	84	/** Interface provided by devmap.
85	* Every process that connects to devmap must ask one of following	85	* Every process that connects to devmap must ask one of following
86	* interfaces otherwise connection will be refused.	86	* interfaces otherwise connection will be refused.
87	*/	87	*/
88	typedef enum {	88	typedef enum {
89	/** Connect as device driver */	89	/** Connect as device driver */
90	DEVMAP_DRIVER = 1,	90	DEVMAP_DRIVER = 1,
91	/** Connect as client */	91	/** Connect as client */
92	DEVMAP_CLIENT,	92	DEVMAP_CLIENT,
93	/** Create new connection to instance of device that	93	/** Create new connection to instance of device that
94	* is specified by second argument of call. */	94	* is specified by second argument of call. */
95	DEVMAP_CONNECT_TO_DEVICE	95	DEVMAP_CONNECT_TO_DEVICE
96	} devmap_interface_t;	96	} devmap_interface_t;
97		97
98	#endif	98	#endif
99		99
100		100

Subversion Repositories HelenOS

(root)/trunk/uspace/lib/libc/include/ipc/devmap.h – Rev 2635 → 3076