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 extern __u32 data_sizes[]; 87 extern __u32 min_turn_times[]; 88 extern __u32 add_bofs[]; 89 extern __u32 compressions[]; 90 91 void irda_init_max_qos_capabilies(struct qos_info *qos); 92 void irda_qos_compute_intersection(struct qos_info *, struct qos_info *); 93 94 __u32 irlap_max_line_capacity(__u32 speed, __u32 max_turn_time); 95 __u32 irlap_requested_line_capacity(struct qos_info *qos); 96 97 int msb_index(__u16 byte); 98 void irda_qos_bits_to_value(struct qos_info *qos); 99 100 /* So simple, how could we not inline those two ? 101 * Note : one byte is 10 bits if you include start and stop bits 102 * Jean II */ 103 #define irlap_min_turn_time_in_bytes(speed, min_turn_time) ( \ 104 speed * min_turn_time / 10000000 \ 105 ) 106 #define irlap_xbofs_in_usec(speed, xbofs) ( \ 107 xbofs * 10000000 / speed \ 108 ) 109 110 #endif 111 112