| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 47 | #define IR_115200_MAX 0x3f |
| 48 | |
| 49 | /* Baud rates (first byte) */ |
| 50 | #define IR_2400 0x01 |
| 51 | #define IR_9600 0x02 |
| 52 | #define IR_19200 0x04 |
| 53 | #define IR_38400 0x08 |
| 54 | #define IR_57600 0x10 |
| 55 | #define IR_115200 0x20 |
| 56 | #define IR_576000 0x40 |
| 57 | #define IR_1152000 0x80 |
| 58 | |
| 59 | /* Baud rates (second byte) */ |
| 60 | #define IR_4000000 0x01 |
| 61 | #define IR_16000000 0x02 |
| 62 | |
| 63 | /* Quality of Service information */ |
| 64 | typedef struct { |
| 65 | __u32 value; |
| 66 | __u16 bits; /* LSB is first byte, MSB is second byte */ |
| 67 | } qos_value_t; |
| 68 | |
| 69 | struct qos_info { |
| 70 | magic_t magic; |
| 71 | |
| 72 | qos_value_t baud_rate; /* IR_11520O | ... */ |
| 73 | qos_value_t max_turn_time; |
| 74 | qos_value_t data_size; |
| 75 | qos_value_t window_size; |
| 76 | qos_value_t additional_bofs; |
| 77 | qos_value_t min_turn_time; |
| 78 | qos_value_t link_disc_time; |
| 79 | |
| 80 | qos_value_t power; |
| 81 | }; |
| 82 | |
| 83 | extern int sysctl_max_baud_rate; |
| 84 | extern int sysctl_max_inactive_time; |
| 85 | |
| 86 | void irda_init_max_qos_capabilies(struct qos_info *qos); |
| 87 | void irda_qos_compute_intersection(struct qos_info *, struct qos_info *); |
| 88 | |
| 89 | __u32 irlap_max_line_capacity(__u32 speed, __u32 max_turn_time); |
| 90 | |
| 91 | void irda_qos_bits_to_value(struct qos_info *qos); |
| 92 | |
| 93 | /* So simple, how could we not inline those two ? |
| 94 | * Note : one byte is 10 bits if you include start and stop bits |
| 95 | * Jean II */ |
| 96 | #define irlap_min_turn_time_in_bytes(speed, min_turn_time) ( \ |
| 97 | speed * min_turn_time / 10000000 \ |
| 98 | ) |
| 99 | #define irlap_xbofs_in_usec(speed, xbofs) ( \ |
| 100 | xbofs * 10000000 / speed \ |
| 101 | ) |
| 102 | |
| 103 | #endif |
| 104 | |