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104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
/*********************************************************************
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*
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* Filename: qos.h
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* Version: 1.0
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* Description: Quality of Service definitions
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* Status: Experimental.
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* Author: Dag Brattli <dagb@cs.uit.no>
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* Created at: Fri Sep 19 23:21:09 1997
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* Modified at: Thu Dec 2 13:51:54 1999
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* Modified by: Dag Brattli <dagb@cs.uit.no>
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*
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* Copyright (c) 1999 Dag Brattli, All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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********************************************************************/
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#ifndef IRDA_QOS_H
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#define IRDA_QOS_H
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#include <linux/skbuff.h>
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#include <net/irda/parameters.h>
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#define PI_BAUD_RATE 0x01
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#define PI_MAX_TURN_TIME 0x82
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#define PI_DATA_SIZE 0x83
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#define PI_WINDOW_SIZE 0x84
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#define PI_ADD_BOFS 0x85
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#define PI_MIN_TURN_TIME 0x86
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#define PI_LINK_DISC 0x08
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#define IR_115200_MAX 0x3f
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/* Baud rates (first byte) */
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#define IR_2400 0x01
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#define IR_9600 0x02
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#define IR_19200 0x04
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#define IR_38400 0x08
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#define IR_57600 0x10
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#define IR_115200 0x20
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#define IR_576000 0x40
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#define IR_1152000 0x80
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/* Baud rates (second byte) */
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#define IR_4000000 0x01
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#define IR_16000000 0x02
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/* Quality of Service information */
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typedef struct {
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__u32 value;
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__u16 bits; /* LSB is first byte, MSB is second byte */
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} qos_value_t;
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struct qos_info {
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magic_t magic;
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qos_value_t baud_rate; /* IR_11520O | ... */
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qos_value_t max_turn_time;
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qos_value_t data_size;
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qos_value_t window_size;
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qos_value_t additional_bofs;
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qos_value_t min_turn_time;
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qos_value_t link_disc_time;
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qos_value_t power;
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};
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extern int sysctl_max_baud_rate;
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extern int sysctl_max_inactive_time;
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void irda_init_max_qos_capabilies(struct qos_info *qos);
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void irda_qos_compute_intersection(struct qos_info *, struct qos_info *);
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__u32 irlap_max_line_capacity(__u32 speed, __u32 max_turn_time);
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void irda_qos_bits_to_value(struct qos_info *qos);
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/* So simple, how could we not inline those two ?
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* Note : one byte is 10 bits if you include start and stop bits
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* Jean II */
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#define irlap_min_turn_time_in_bytes(speed, min_turn_time) ( \
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speed * min_turn_time / 10000000 \
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)
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#define irlap_xbofs_in_usec(speed, xbofs) ( \
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xbofs * 10000000 / speed \
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)
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#endif
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