/********************************************************************* * * Filename: irsysctl.c * Version: 1.0 * Description: Sysctl interface for IrDA * Status: Experimental. * Author: Dag Brattli <dagb@cs.uit.no> * Created at: Sun May 24 22:12:06 1998 * Modified at: Fri Jun 4 02:50:15 1999 * Modified by: Dag Brattli <dagb@cs.uit.no> * * Copyright (c) 1997, 1999 Dag Brattli, All Rights Reserved. * Copyright (c) 2000-2001 Jean Tourrilhes <jt@hpl.hp.com> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * Neither Dag Brattli nor University of Tromsø admit liability nor * provide warranty for any of this software. This material is * provided "AS-IS" and at no charge. * ********************************************************************/ #include <linux/mm.h> #include <linux/ctype.h> #include <linux/sysctl.h> #include <linux/init.h> #include <net/irda/irda.h> /* irda_debug */ #include <net/irda/irlmp.h> #include <net/irda/timer.h> #include <net/irda/irias_object.h> extern int sysctl_discovery; extern int sysctl_discovery_slots; extern int sysctl_discovery_timeout; extern int sysctl_slot_timeout; extern int sysctl_fast_poll_increase; extern char sysctl_devname[]; extern int sysctl_max_baud_rate; extern unsigned int sysctl_min_tx_turn_time; extern unsigned int sysctl_max_tx_data_size; extern unsigned int sysctl_max_tx_window; extern int sysctl_max_noreply_time; extern int sysctl_warn_noreply_time; extern int sysctl_lap_keepalive_time; extern struct irlmp_cb *irlmp; /* this is needed for the proc_dointvec_minmax - Jean II */ static int max_discovery_slots = 16; /* ??? */ static int min_discovery_slots = 1; /* IrLAP 6.13.2 says 25ms to 10+70ms - allow higher since some devices * seems to require it. (from Dag's comment) */ static int max_slot_timeout = 160; static int min_slot_timeout = 20; static int max_max_baud_rate = 16000000; /* See qos.c - IrLAP spec */ static int min_max_baud_rate = 2400; static int max_min_tx_turn_time = 10000; /* See qos.c - IrLAP spec */ static int min_min_tx_turn_time; static int max_max_tx_data_size = 2048; /* See qos.c - IrLAP spec */ static int min_max_tx_data_size = 64; static int max_max_tx_window = 7; /* See qos.c - IrLAP spec */ static int min_max_tx_window = 1; static int max_max_noreply_time = 40; /* See qos.c - IrLAP spec */ static int min_max_noreply_time = 3; static int max_warn_noreply_time = 3; /* 3s == standard */ static int min_warn_noreply_time = 1; /* 1s == min WD_TIMER */ static int max_lap_keepalive_time = 10000; /* 10s */ static int min_lap_keepalive_time = 100; /* 100us */ /* For other sysctl, I've no idea of the range. Maybe Dag could help * us on that - Jean II */ static int do_devname(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { int ret; ret = proc_dostring(table, write, buffer, lenp, ppos); if (ret == 0 && write) { struct ias_value *val; val = irias_new_string_value(sysctl_devname); if (val) irias_object_change_attribute("Device", "DeviceName", val); } return ret; } static int do_discovery(struct ctl_table *table, int write, void __user *buffer, size_t *lenp, loff_t *ppos) { int ret; ret = proc_dointvec(table, write, buffer, lenp, ppos); if (ret) return ret; if (irlmp == NULL) return -ENODEV; if (sysctl_discovery) irlmp_start_discovery_timer(irlmp, sysctl_discovery_timeout*HZ); else del_timer_sync(&irlmp->discovery_timer); return ret; } /* One file */ static struct ctl_table irda_table[] = { { .procname = "discovery", .data = &sysctl_discovery, .maxlen = sizeof(int), .mode = 0644, .proc_handler = do_discovery, }, { .procname = "devname", .data = sysctl_devname, .maxlen = 65, .mode = 0644, .proc_handler = do_devname, }, #ifdef CONFIG_IRDA_FAST_RR { .procname = "fast_poll_increase", .data = &sysctl_fast_poll_increase, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec }, #endif { .procname = "discovery_slots", .data = &sysctl_discovery_slots, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_discovery_slots, .extra2 = &max_discovery_slots }, { .procname = "discovery_timeout", .data = &sysctl_discovery_timeout, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec }, { .procname = "slot_timeout", .data = &sysctl_slot_timeout, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_slot_timeout, .extra2 = &max_slot_timeout }, { .procname = "max_baud_rate", .data = &sysctl_max_baud_rate, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_max_baud_rate, .extra2 = &max_max_baud_rate }, { .procname = "min_tx_turn_time", .data = &sysctl_min_tx_turn_time, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_min_tx_turn_time, .extra2 = &max_min_tx_turn_time }, { .procname = "max_tx_data_size", .data = &sysctl_max_tx_data_size, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_max_tx_data_size, .extra2 = &max_max_tx_data_size }, { .procname = "max_tx_window", .data = &sysctl_max_tx_window, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_max_tx_window, .extra2 = &max_max_tx_window }, { .procname = "max_noreply_time", .data = &sysctl_max_noreply_time, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_max_noreply_time, .extra2 = &max_max_noreply_time }, { .procname = "warn_noreply_time", .data = &sysctl_warn_noreply_time, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_warn_noreply_time, .extra2 = &max_warn_noreply_time }, { .procname = "lap_keepalive_time", .data = &sysctl_lap_keepalive_time, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec_minmax, .extra1 = &min_lap_keepalive_time, .extra2 = &max_lap_keepalive_time }, { } }; static struct ctl_table_header *irda_table_header; /* * Function irda_sysctl_register (void) * * Register our sysctl interface * */ int __init irda_sysctl_register(void) { irda_table_header = register_net_sysctl(&init_net, "net/irda", irda_table); if (!irda_table_header) return -ENOMEM; return 0; } /* * Function irda_sysctl_unregister (void) * * Unregister our sysctl interface * */ void irda_sysctl_unregister(void) { unregister_net_sysctl_table(irda_table_header); }