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
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
27 * MA 02111-1307 USA
28 *
29 ********************************************************************/
30
31 #ifndef IRDA_QOS_H
32 #define IRDA_QOS_H
33
34 #include <linux/config.h>
35 #include <linux/skbuff.h>
36
37 #include <net/irda/parameters.h>
38
39 #define PI_BAUD_RATE 0x01
40 #define PI_MAX_TURN_TIME 0x82
41 #define PI_DATA_SIZE 0x83
42 #define PI_WINDOW_SIZE 0x84
43 #define PI_ADD_BOFS 0x85
44 #define PI_MIN_TURN_TIME 0x86
45 #define PI_LINK_DISC 0x08
46 #define PI_COMPRESSION 0x07 /* Just a random pick */
47
48
49 #define IR_115200_MAX 0x3f
50
51 /* Baud rates (first byte) */
52 #define IR_2400 0x01
53 #define IR_9600 0x02
54 #define IR_19200 0x04
55 #define IR_38400 0x08
56 #define IR_57600 0x10
57 #define IR_115200 0x20
58 #define IR_576000 0x40
59 #define IR_1152000 0x80
60
61 /* Baud rates (second byte) */
62 #define IR_4000000 0x01
63 #define IR_16000000 0x02
64
65 /* Quality of Service information */
66 typedef struct {
67 __u32 value;
68 __u16 bits; /* LSB is first byte, MSB is second byte */
69 } qos_value_t;
70
71 struct qos_info {
72 magic_t magic;
73
74 qos_value_t baud_rate; /* IR_11520O | ... */
75 qos_value_t max_turn_time;
76 qos_value_t data_size;
77 qos_value_t window_size;
78 qos_value_t additional_bofs;
79 qos_value_t min_turn_time;
80 qos_value_t link_disc_time;
81
82 qos_value_t power;
83 #ifdef CONFIG_IRDA_COMPRESSION
84 /* An experimental non IrDA field */
85 qos_value_t compression;
86 #endif
87 };
88
89 extern int sysctl_max_baud_rate;
90 extern int sysctl_max_inactive_time;
91
92 extern __u32 baud_rates[];
93 extern __u32 data_sizes[];
94 extern __u32 min_turn_times[];
95 extern __u32 add_bofs[];
96 extern __u32 compressions[];
97
98 void irda_init_max_qos_capabilies(struct qos_info *qos);
99 void irda_qos_compute_intersection(struct qos_info *, struct qos_info *);
100
101 __u32 irlap_max_line_capacity(__u32 speed, __u32 max_turn_time);
102 __u32 irlap_requested_line_capacity(struct qos_info *qos);
103 __u32 irlap_min_turn_time_in_bytes(__u32 speed, __u32 min_turn_time);
104
105 int msb_index(__u16 byte);
106 void irda_qos_bits_to_value(struct qos_info *qos);
107
108 #endif
109
110
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