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/skbuff.h> 35 36 #include <net/irda/parameters.h> 37 38 #define PI_BAUD_RATE 0x01 39 #define PI_MAX_TURN_TIME 0x82 40 #define PI_DATA_SIZE 0x83 41 #define PI_WINDOW_SIZE 0x84 42 #define PI_ADD_BOFS 0x85 43 #define PI_MIN_TURN_TIME 0x86 44 #define PI_LINK_DISC 0x08 45 46 #define IR_115200_MAX 0x3f 47 48 /* Baud rates (first byte) */ 49 #define IR_2400 0x01 50 #define IR_9600 0x02 51 #define IR_19200 0x04 52 #define IR_38400 0x08 53 #define IR_57600 0x10 54 #define IR_115200 0x20 55 #define IR_576000 0x40 56 #define IR_1152000 0x80 57 58 /* Baud rates (second byte) */ 59 #define IR_4000000 0x01 60 #define IR_16000000 0x02 61 62 /* Quality of Service information */ 63 typedef struct { 64 __u32 value; 65 __u16 bits; /* LSB is first byte, MSB is second byte */ 66 } qos_value_t; 67 68 struct qos_info { 69 magic_t magic; 70 71 qos_value_t baud_rate; /* IR_11520O | ... */ 72 qos_value_t max_turn_time; 73 qos_value_t data_size; 74 qos_value_t window_size; 75 qos_value_t additional_bofs; 76 qos_value_t min_turn_time; 77 qos_value_t link_disc_time; 78 79 qos_value_t power; 80 }; 81 82 extern int sysctl_max_baud_rate; 83 extern int sysctl_max_inactive_time; 84 85 void irda_init_max_qos_capabilies(struct qos_info *qos); 86 void irda_qos_compute_intersection(struct qos_info *, struct qos_info *); 87 88 __u32 irlap_max_line_capacity(__u32 speed, __u32 max_turn_time); 89 90 void irda_qos_bits_to_value(struct qos_info *qos); 91 92 /* So simple, how could we not inline those two ? 93 * Note : one byte is 10 bits if you include start and stop bits 94 * Jean II */ 95 #define irlap_min_turn_time_in_bytes(speed, min_turn_time) ( \ 96 speed * min_turn_time / 10000000 \ 97 ) 98 #define irlap_xbofs_in_usec(speed, xbofs) ( \ 99 xbofs * 10000000 / speed \ 100 ) 101 102 #endif 103 104