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1da177e4 LT |
1 | /********************************************************************* |
2 | * | |
3 | * Filename: qos.h | |
4 | * Version: 1.0 | |
5 | * Description: Quality of Service definitions | |
6 | * Status: Experimental. | |
7 | * Author: Dag Brattli <dagb@cs.uit.no> | |
8 | * Created at: Fri Sep 19 23:21:09 1997 | |
9 | * Modified at: Thu Dec 2 13:51:54 1999 | |
10 | * Modified by: Dag Brattli <dagb@cs.uit.no> | |
11 | * | |
12 | * Copyright (c) 1999 Dag Brattli, All Rights Reserved. | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or | |
15 | * modify it under the terms of the GNU General Public License as | |
16 | * published by the Free Software Foundation; either version 2 of | |
17 | * the License, or (at your option) any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License | |
a6227e26 | 25 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
1da177e4 LT |
26 | * |
27 | ********************************************************************/ | |
28 | ||
29 | #ifndef IRDA_QOS_H | |
30 | #define IRDA_QOS_H | |
31 | ||
1da177e4 LT |
32 | #include <linux/skbuff.h> |
33 | ||
34 | #include <net/irda/parameters.h> | |
35 | ||
36 | #define PI_BAUD_RATE 0x01 | |
37 | #define PI_MAX_TURN_TIME 0x82 | |
38 | #define PI_DATA_SIZE 0x83 | |
39 | #define PI_WINDOW_SIZE 0x84 | |
40 | #define PI_ADD_BOFS 0x85 | |
41 | #define PI_MIN_TURN_TIME 0x86 | |
42 | #define PI_LINK_DISC 0x08 | |
43 | ||
44 | #define IR_115200_MAX 0x3f | |
45 | ||
46 | /* Baud rates (first byte) */ | |
47 | #define IR_2400 0x01 | |
48 | #define IR_9600 0x02 | |
49 | #define IR_19200 0x04 | |
50 | #define IR_38400 0x08 | |
51 | #define IR_57600 0x10 | |
52 | #define IR_115200 0x20 | |
53 | #define IR_576000 0x40 | |
54 | #define IR_1152000 0x80 | |
55 | ||
56 | /* Baud rates (second byte) */ | |
57 | #define IR_4000000 0x01 | |
58 | #define IR_16000000 0x02 | |
59 | ||
60 | /* Quality of Service information */ | |
61 | typedef struct { | |
62 | __u32 value; | |
63 | __u16 bits; /* LSB is first byte, MSB is second byte */ | |
64 | } qos_value_t; | |
65 | ||
66 | struct qos_info { | |
67 | magic_t magic; | |
68 | ||
69 | qos_value_t baud_rate; /* IR_11520O | ... */ | |
70 | qos_value_t max_turn_time; | |
71 | qos_value_t data_size; | |
72 | qos_value_t window_size; | |
73 | qos_value_t additional_bofs; | |
74 | qos_value_t min_turn_time; | |
75 | qos_value_t link_disc_time; | |
76 | ||
77 | qos_value_t power; | |
78 | }; | |
79 | ||
80 | extern int sysctl_max_baud_rate; | |
81 | extern int sysctl_max_inactive_time; | |
82 | ||
83 | void irda_init_max_qos_capabilies(struct qos_info *qos); | |
84 | void irda_qos_compute_intersection(struct qos_info *, struct qos_info *); | |
85 | ||
86 | __u32 irlap_max_line_capacity(__u32 speed, __u32 max_turn_time); | |
87 | ||
88 | void irda_qos_bits_to_value(struct qos_info *qos); | |
89 | ||
90 | /* So simple, how could we not inline those two ? | |
91 | * Note : one byte is 10 bits if you include start and stop bits | |
92 | * Jean II */ | |
93 | #define irlap_min_turn_time_in_bytes(speed, min_turn_time) ( \ | |
94 | speed * min_turn_time / 10000000 \ | |
95 | ) | |
96 | #define irlap_xbofs_in_usec(speed, xbofs) ( \ | |
97 | xbofs * 10000000 / speed \ | |
98 | ) | |
99 | ||
100 | #endif | |
101 |