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 */ 64typedef struct { 65 __u32 value; 66 __u16 bits; /* LSB is first byte, MSB is second byte */ 67} qos_value_t; 68 69struct 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 83extern int sysctl_max_baud_rate; 84extern int sysctl_max_inactive_time; 85 86extern __u32 baud_rates[]; 87extern __u32 data_sizes[]; 88extern __u32 min_turn_times[]; 89extern __u32 add_bofs[]; 90extern __u32 compressions[]; 91 92void irda_init_max_qos_capabilies(struct qos_info *qos); 93void irda_qos_compute_intersection(struct qos_info *, struct qos_info *); 94 95__u32 irlap_max_line_capacity(__u32 speed, __u32 max_turn_time); 96__u32 irlap_requested_line_capacity(struct qos_info *qos); 97 98int msb_index(__u16 byte); 99void irda_qos_bits_to_value(struct qos_info *qos); 100 101/* So simple, how could we not inline those two ? 102 * Note : one byte is 10 bits if you include start and stop bits 103 * Jean II */ 104#define irlap_min_turn_time_in_bytes(speed, min_turn_time) ( \ 105 speed * min_turn_time / 10000000 \ 106) 107#define irlap_xbofs_in_usec(speed, xbofs) ( \ 108 xbofs * 10000000 / speed \ 109) 110 111#endif 112 113