00001 /********************************************************************* 00002 * 00003 * Filename: qos.h 00004 * Version: 1.0 00005 * Description: Quality of Service definitions 00006 * Status: Experimental. 00007 * Author: Dag Brattli <dagb@cs.uit.no> 00008 * Created at: Fri Sep 19 23:21:09 1997 00009 * Modified at: Thu Dec 2 13:51:54 1999 00010 * Modified by: Dag Brattli <dagb@cs.uit.no> 00011 * 00012 * Copyright (c) 1999 Dag Brattli, All Rights Reserved. 00013 * 00014 * This program is free software; you can redistribute it and/or 00015 * modify it under the terms of the GNU General Public License as 00016 * published by the Free Software Foundation; either version 2 of 00017 * the License, or (at your option) any later version. 00018 * 00019 * This program is distributed in the hope that it will be useful, 00020 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00021 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00022 * GNU General Public License for more details. 00023 * 00024 * You should have received a copy of the GNU General Public License 00025 * along with this program; if not, write to the Free Software 00026 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 00027 * MA 02111-1307 USA 00028 * 00029 ********************************************************************/ 00030 00031 #ifndef IRDA_QOS_H 00032 #define IRDA_QOS_H 00033 00034 #include <linux/config.h> 00035 #include <linux/skbuff.h> 00036 00037 #include <net/irda/parameters.h> 00038 00039 #define PI_BAUD_RATE 0x01 00040 #define PI_MAX_TURN_TIME 0x82 00041 #define PI_DATA_SIZE 0x83 00042 #define PI_WINDOW_SIZE 0x84 00043 #define PI_ADD_BOFS 0x85 00044 #define PI_MIN_TURN_TIME 0x86 00045 #define PI_LINK_DISC 0x08 00046 #define PI_COMPRESSION 0x07 /* Just a random pick */ 00047 00048 00049 #define IR_115200_MAX 0x3f 00050 00051 /* Baud rates (first byte) */ 00052 #define IR_2400 0x01 00053 #define IR_9600 0x02 00054 #define IR_19200 0x04 00055 #define IR_38400 0x08 00056 #define IR_57600 0x10 00057 #define IR_115200 0x20 00058 #define IR_576000 0x40 00059 #define IR_1152000 0x80 00060 00061 /* Baud rates (second byte) */ 00062 #define IR_4000000 0x01 00063 #define IR_16000000 0x02 00064 00065 /* Quality of Service information */ 00066 typedef struct { 00067 __u32 value; 00068 __u16 bits; /* LSB is first byte, MSB is second byte */ 00069 } qos_value_t; 00070 00071 struct qos_info { 00072 magic_t magic; 00073 00074 qos_value_t baud_rate; /* IR_11520O | ... */ 00075 qos_value_t max_turn_time; 00076 qos_value_t data_size; 00077 qos_value_t window_size; 00078 qos_value_t additional_bofs; 00079 qos_value_t min_turn_time; 00080 qos_value_t link_disc_time; 00081 00082 qos_value_t power; 00083 #ifdef CONFIG_IRDA_COMPRESSION 00084 /* An experimental non IrDA field */ 00085 qos_value_t compression; 00086 #endif 00087 }; 00088 00089 extern __u32 baud_rates[]; 00090 extern __u32 data_sizes[]; 00091 extern __u32 min_turn_times[]; 00092 extern __u32 add_bofs[]; 00093 extern __u32 compressions[]; 00094 00095 void irda_init_max_qos_capabilies(struct qos_info *qos); 00096 void irda_qos_compute_intersection(struct qos_info *, struct qos_info *); 00097 00098 __u32 irlap_max_line_capacity(__u32 speed, __u32 max_turn_time); 00099 __u32 irlap_requested_line_capacity(struct qos_info *qos); 00100 __u32 irlap_min_turn_time_in_bytes(__u32 speed, __u32 min_turn_time); 00101 00102 int msb_index(__u16 byte); 00103 int value_index(__u32 value, __u32 *array); 00104 __u32 byte_value(__u8 byte, __u32 *array); 00105 __u32 index_value(int index, __u32 *array); 00106 00107 void irda_qos_bits_to_value(struct qos_info *qos); 00108 00109 #endif 00110 00111 00112 00113 00114