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1 | /* |
1 | /* |
2 | * Copyright (c) 2009 Lukas Mejdrech |
2 | * Copyright (c) 2009 Lukas Mejdrech |
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 netif |
29 | /** @addtogroup netif |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | 32 | ||
33 | /** @file |
33 | /** @file |
34 | * Network interface module skeleton. |
34 | * Network interface module skeleton. |
35 | */ |
35 | */ |
36 | 36 | ||
37 | #ifndef __NET_NETIF_H__ |
37 | #ifndef __NET_NETIF_H__ |
38 | #define __NET_NETIF_H__ |
38 | #define __NET_NETIF_H__ |
39 | 39 | ||
- | 40 | #include <rwlock.h> |
|
- | 41 | ||
40 | #include "device.h" |
42 | #include "device.h" |
41 | 43 | ||
42 | /** Sends the notification message to the registered network interface layer module. |
44 | /** Sends the notification message to the registered network interface layer module. |
43 | * Wrapper of the async_msg_3(). |
45 | * Wrapper of the async_msg_3(). |
44 | * The first message argument is always the device identifier. |
46 | * The first message argument is always the device identifier. |
45 | * @param device The device specific data. Input parameter. |
47 | * @param device The device specific data. Input parameter. |
46 | * @param message The message to be sent. Input parameter. |
48 | * @param message The message to be sent. Input parameter. |
47 | * @param arg2 The second message argument. Input parameter. |
49 | * @param arg2 The second message argument. Input parameter. |
48 | * @param arg3 The third message argument. Input parameter. |
50 | * @param arg3 The third message argument. Input parameter. |
49 | */ |
51 | */ |
50 | #define nil_message( device, message, arg2, arg3 ) \ |
52 | #define nil_message( device, message, arg2, arg3 ) \ |
51 | if(( device )->nil_phone >= 0 ) async_msg_3(( device )->nil_phone, ( message ), ( device )->device_id, arg2, arg3 ) |
53 | if(( device )->nil_phone >= 0 ) async_msg_3(( device )->nil_phone, ( message ), ( device )->device_id, arg2, arg3 ) |
52 | 54 | ||
53 | /** Network interface module skeleton global data. |
55 | /** Network interface module skeleton global data. |
54 | */ |
56 | */ |
55 | typedef struct netif_globals netif_globals_t; |
57 | typedef struct netif_globals netif_globals_t; |
56 | 58 | ||
57 | /** Type definition of the device specific data. |
59 | /** Type definition of the device specific data. |
58 | * @see netif_device |
60 | * @see netif_device |
59 | */ |
61 | */ |
60 | typedef struct netif_device device_t; |
62 | typedef struct netif_device device_t; |
61 | 63 | ||
62 | /** Type definition of the device specific data pointer. |
64 | /** Type definition of the device specific data pointer. |
63 | * @see netif_device |
65 | * @see netif_device |
64 | */ |
66 | */ |
65 | typedef device_t * device_ref; |
67 | typedef device_t * device_ref; |
66 | 68 | ||
67 | /** Device map. |
69 | /** Device map. |
68 | * Maps device identifiers to the network interface device specific data. |
70 | * Maps device identifiers to the network interface device specific data. |
69 | * @see device.h |
71 | * @see device.h |
70 | */ |
72 | */ |
71 | DEVICE_MAP_DECLARE( device_map, device_t ); |
73 | DEVICE_MAP_DECLARE( device_map, device_t ); |
72 | 74 | ||
73 | /** Network interface device specific data. |
75 | /** Network interface device specific data. |
74 | */ |
76 | */ |
75 | struct netif_device{ |
77 | struct netif_device{ |
76 | /** Device identifier. |
78 | /** Device identifier. |
77 | */ |
79 | */ |
78 | device_id_t device_id; |
80 | device_id_t device_id; |
79 | /** Receiving network interface layer phone. |
81 | /** Receiving network interface layer phone. |
80 | */ |
82 | */ |
81 | int nil_phone; |
83 | int nil_phone; |
82 | /** Usage statistics. |
- | |
83 | */ |
- | |
84 | device_stats_t stats; |
- | |
85 | /** Actual device state. |
84 | /** Actual device state. |
86 | */ |
85 | */ |
87 | device_state_t state; |
86 | device_state_t state; |
88 | /** Driver specific data. |
87 | /** Driver specific data. |
89 | */ |
88 | */ |
90 | void * specific; |
89 | void * specific; |
91 | }; |
90 | }; |
92 | 91 | ||
93 | /** Network interface module skeleton global data. |
92 | /** Network interface module skeleton global data. |
94 | */ |
93 | */ |
95 | struct netif_globals{ |
94 | struct netif_globals{ |
96 | /** Networking module phone. |
95 | /** Networking module phone. |
97 | */ |
96 | */ |
98 | int networking_phone; |
97 | int networking_phone; |
99 | /** Device map. |
98 | /** Device map. |
100 | */ |
99 | */ |
101 | device_map_t device_map; |
100 | device_map_t device_map; |
- | 101 | /** Safety lock. |
|
- | 102 | */ |
|
- | 103 | rwlock_t lock; |
|
102 | }; |
104 | }; |
103 | 105 | ||
104 | /** Finds the device specific data. |
106 | /** Finds the device specific data. |
105 | * @param device_id The device identifier. Input parameter. |
107 | * @param device_id The device identifier. Input parameter. |
106 | * @param device The device specific data. Output parameter. |
108 | * @param device The device specific data. Output parameter. |
107 | * @returns EOK on success. |
109 | * @returns EOK on success. |
108 | * @returns ENOENT if device is not found. |
110 | * @returns ENOENT if device is not found. |
109 | * @returns EPERM if the device is not initialized. |
111 | * @returns EPERM if the device is not initialized. |
110 | */ |
112 | */ |
111 | int find_device( device_id_t device_id, device_ref * device ); |
113 | int find_device( device_id_t device_id, device_ref * device ); |
112 | 114 | ||
113 | /** Clears the usage statistics. |
115 | /** Clears the usage statistics. |
114 | * @param stats The usage statistics. Input parameter. |
116 | * @param stats The usage statistics. Input parameter. |
115 | */ |
117 | */ |
116 | void null_device_stats( device_stats_ref stats ); |
118 | void null_device_stats( device_stats_ref stats ); |
117 | 119 | ||
- | 120 | // prepared for future optimalizations |
|
- | 121 | /** \todo |
|
- | 122 | */ |
|
- | 123 | void netif_pq_release( packet_id_t packet ); |
|
- | 124 | ||
- | 125 | /** \todo |
|
- | 126 | */ |
|
- | 127 | packet_t netif_packet_get_1( size_t content ); |
|
- | 128 | ||
118 | #endif |
129 | #endif |
119 | 130 | ||
120 | /** @} |
131 | /** @} |
121 | */ |
132 | */ |
122 | 133 | ||
123 | 134 |