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, see <http://www.gnu.org/licenses/>. 26 * 27 ********************************************************************/ 28 29 #ifndef IRDA_QOS_H 30 #define IRDA_QOS_H 31 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 101 102