1/********************************************************************* 2 * 3 * Filename: irsysctl.c 4 * Version: 1.0 5 * Description: Sysctl interface for IrDA 6 * Status: Experimental. 7 * Author: Dag Brattli <dagb@cs.uit.no> 8 * Created at: Sun May 24 22:12:06 1998 9 * Modified at: Fri Jun 4 02:50:15 1999 10 * Modified by: Dag Brattli <dagb@cs.uit.no> 11 * 12 * Copyright (c) 1997, 1999 Dag Brattli, All Rights Reserved. 13 * Copyright (c) 2000-2001 Jean Tourrilhes <jt@hpl.hp.com> 14 * 15 * This program is free software; you can redistribute it and/or 16 * modify it under the terms of the GNU General Public License as 17 * published by the Free Software Foundation; either version 2 of 18 * the License, or (at your option) any later version. 19 * 20 * Neither Dag Brattli nor University of Troms� admit liability nor 21 * provide warranty for any of this software. This material is 22 * provided "AS-IS" and at no charge. 23 * 24 ********************************************************************/ 25 26#include <linux/config.h> 27#include <linux/mm.h> 28#include <linux/ctype.h> 29#include <linux/sysctl.h> 30#include <asm/segment.h> 31 32#include <net/irda/irda.h> 33#include <net/irda/irias_object.h> 34 35#define NET_IRDA 412 /* Random number */ 36enum { DISCOVERY=1, DEVNAME, DEBUG, FAST_POLL, DISCOVERY_SLOTS, 37 DISCOVERY_TIMEOUT, SLOT_TIMEOUT, MAX_BAUD_RATE, MIN_TX_TURN_TIME, 38 MAX_TX_DATA_SIZE, MAX_NOREPLY_TIME, WARN_NOREPLY_TIME, 39 LAP_KEEPALIVE_TIME }; 40 41extern int sysctl_discovery; 42extern int sysctl_discovery_slots; 43extern int sysctl_discovery_timeout; 44extern int sysctl_slot_timeout; 45extern int sysctl_fast_poll_increase; 46int sysctl_compression = 0; 47extern char sysctl_devname[]; 48extern int sysctl_max_baud_rate; 49extern int sysctl_min_tx_turn_time; 50extern int sysctl_max_tx_data_size; 51extern int sysctl_max_noreply_time; 52extern int sysctl_warn_noreply_time; 53extern int sysctl_lap_keepalive_time; 54 55#ifdef CONFIG_IRDA_DEBUG 56extern unsigned int irda_debug; 57#endif 58 59/* this is needed for the proc_dointvec_minmax - Jean II */ 60static int max_discovery_slots = 16; /* ??? */ 61static int min_discovery_slots = 1; 62/* IrLAP 6.13.2 says 25ms to 10+70ms - allow higher since some devices 63 * seems to require it. (from Dag's comment) */ 64static int max_slot_timeout = 160; 65static int min_slot_timeout = 20; 66static int max_max_baud_rate = 16000000; /* See qos.c - IrLAP spec */ 67static int min_max_baud_rate = 2400; 68static int max_min_tx_turn_time = 10000; /* See qos.c - IrLAP spec */ 69static int min_min_tx_turn_time = 0; 70static int max_max_tx_data_size = 2048; /* See qos.c - IrLAP spec */ 71static int min_max_tx_data_size = 64; 72static int max_max_noreply_time = 40; /* See qos.c - IrLAP spec */ 73static int min_max_noreply_time = 3; 74static int max_warn_noreply_time = 3; /* 3s == standard */ 75static int min_warn_noreply_time = 1; /* 1s == min WD_TIMER */ 76static int max_lap_keepalive_time = 10000; /* 10s */ 77static int min_lap_keepalive_time = 100; /* 100us */ 78/* For other sysctl, I've no idea of the range. Maybe Dag could help 79 * us on that - Jean II */ 80 81static int do_devname(ctl_table *table, int write, struct file *filp, 82 void *buffer, size_t *lenp) 83{ 84 int ret; 85 86 ret = proc_dostring(table, write, filp, buffer, lenp); 87 if (ret == 0 && write) { 88 struct ias_value *val; 89 90 val = irias_new_string_value(sysctl_devname); 91 if (val) 92 irias_object_change_attribute("Device", "DeviceName", val); 93 } 94 return ret; 95} 96 97/* One file */ 98static ctl_table irda_table[] = { 99 { DISCOVERY, "discovery", &sysctl_discovery, 100 sizeof(int), 0644, NULL, &proc_dointvec }, 101 { DEVNAME, "devname", sysctl_devname, 102 65, 0644, NULL, &do_devname, &sysctl_string}, 103#ifdef CONFIG_IRDA_DEBUG 104 { DEBUG, "debug", &irda_debug, 105 sizeof(int), 0644, NULL, &proc_dointvec }, 106#endif 107#ifdef CONFIG_IRDA_FAST_RR 108 { FAST_POLL, "fast_poll_increase", &sysctl_fast_poll_increase, 109 sizeof(int), 0644, NULL, &proc_dointvec }, 110#endif 111 { DISCOVERY_SLOTS, "discovery_slots", &sysctl_discovery_slots, 112 sizeof(int), 0644, NULL, &proc_dointvec_minmax, &sysctl_intvec, 113 NULL, &min_discovery_slots, &max_discovery_slots }, 114 { DISCOVERY_TIMEOUT, "discovery_timeout", &sysctl_discovery_timeout, 115 sizeof(int), 0644, NULL, &proc_dointvec }, 116 { SLOT_TIMEOUT, "slot_timeout", &sysctl_slot_timeout, 117 sizeof(int), 0644, NULL, &proc_dointvec_minmax, &sysctl_intvec, 118 NULL, &min_slot_timeout, &max_slot_timeout }, 119 { MAX_BAUD_RATE, "max_baud_rate", &sysctl_max_baud_rate, 120 sizeof(int), 0644, NULL, &proc_dointvec_minmax, &sysctl_intvec, 121 NULL, &min_max_baud_rate, &max_max_baud_rate }, 122 { MIN_TX_TURN_TIME, "min_tx_turn_time", &sysctl_min_tx_turn_time, 123 sizeof(int), 0644, NULL, &proc_dointvec_minmax, &sysctl_intvec, 124 NULL, &min_min_tx_turn_time, &max_min_tx_turn_time }, 125 { MAX_TX_DATA_SIZE, "max_tx_data_size", &sysctl_max_tx_data_size, 126 sizeof(int), 0644, NULL, &proc_dointvec_minmax, &sysctl_intvec, 127 NULL, &min_max_tx_data_size, &max_max_tx_data_size }, 128 { MAX_NOREPLY_TIME, "max_noreply_time", &sysctl_max_noreply_time, 129 sizeof(int), 0644, NULL, &proc_dointvec_minmax, &sysctl_intvec, 130 NULL, &min_max_noreply_time, &max_max_noreply_time }, 131 { WARN_NOREPLY_TIME, "warn_noreply_time", &sysctl_warn_noreply_time, 132 sizeof(int), 0644, NULL, &proc_dointvec_minmax, &sysctl_intvec, 133 NULL, &min_warn_noreply_time, &max_warn_noreply_time }, 134 { LAP_KEEPALIVE_TIME, "lap_keepalive_time", &sysctl_lap_keepalive_time, 135 sizeof(int), 0644, NULL, &proc_dointvec_minmax, &sysctl_intvec, 136 NULL, &min_lap_keepalive_time, &max_lap_keepalive_time }, 137 { 0 } 138}; 139 140/* One directory */ 141static ctl_table irda_net_table[] = { 142 { NET_IRDA, "irda", NULL, 0, 0555, irda_table }, 143 { 0 } 144}; 145 146/* The parent directory */ 147static ctl_table irda_root_table[] = { 148 { CTL_NET, "net", NULL, 0, 0555, irda_net_table }, 149 { 0 } 150}; 151 152static struct ctl_table_header *irda_table_header; 153 154/* 155 * Function irda_sysctl_register (void) 156 * 157 * Register our sysctl interface 158 * 159 */ 160int irda_sysctl_register(void) 161{ 162 irda_table_header = register_sysctl_table(irda_root_table, 0); 163 if (!irda_table_header) 164 return -ENOMEM; 165 166 return 0; 167} 168 169/* 170 * Function irda_sysctl_unregister (void) 171 * 172 * Unregister our sysctl interface 173 * 174 */ 175void irda_sysctl_unregister(void) 176{ 177 unregister_sysctl_table(irda_table_header); 178} 179 180 181 182