/* * Thomas Horsten <thh@lasat.com> * Copyright (C) 2000 LASAT Networks A/S. * * This program is free software; you can distribute it and/or modify it * under the terms of the GNU General Public License (Version 2) as * published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. * * Routines specific to the LASAT boards */ #include <linux/types.h> #include <asm/lasat/lasat.h> #include <linux/config.h> #include <linux/module.h> #include <linux/sysctl.h> #include <linux/stddef.h> #include <linux/init.h> #include <linux/fs.h> #include <linux/ctype.h> #include <linux/string.h> #include <linux/net.h> #include <linux/inet.h> #include <asm/uaccess.h> #include "sysctl.h" #include "ds1603.h" static DECLARE_MUTEX(lasat_info_sem); /* Strategy function to write EEPROM after changing string entry */ int sysctl_lasatstring(ctl_table *table, int *name, int nlen, void *oldval, size_t *oldlenp, void *newval, size_t newlen, void **context) { int r; down(&lasat_info_sem); r = sysctl_string(table, name, nlen, oldval, oldlenp, newval, newlen, context); if (r < 0) { up(&lasat_info_sem); return r; } if (newval && newlen) { lasat_write_eeprom_info(); } up(&lasat_info_sem); return 1; } /* And the same for proc */ int proc_dolasatstring(ctl_table *table, int write, struct file *filp, void *buffer, size_t *lenp, loff_t *ppos) { int r; down(&lasat_info_sem); r = proc_dostring(table, write, filp, buffer, lenp, ppos); if ( (!write) || r) { up(&lasat_info_sem); return r; } lasat_write_eeprom_info(); up(&lasat_info_sem); return 0; } /* proc function to write EEPROM after changing int entry */ int proc_dolasatint(ctl_table *table, int write, struct file *filp, void *buffer, size_t *lenp, loff_t *ppos) { int r; down(&lasat_info_sem); r = proc_dointvec(table, write, filp, buffer, lenp, ppos); if ( (!write) || r) { up(&lasat_info_sem); return r; } lasat_write_eeprom_info(); up(&lasat_info_sem); return 0; } static int rtctmp; #ifdef CONFIG_DS1603 /* proc function to read/write RealTime Clock */ int proc_dolasatrtc(ctl_table *table, int write, struct file *filp, void *buffer, size_t *lenp, loff_t *ppos) { int r; down(&lasat_info_sem); if (!write) { rtctmp = ds1603_read(); /* check for time < 0 and set to 0 */ if (rtctmp < 0) rtctmp = 0; } r = proc_dointvec(table, write, filp, buffer, lenp, ppos); if ( (!write) || r) { up(&lasat_info_sem); return r; } ds1603_set(rtctmp); up(&lasat_info_sem); return 0; } #endif /* Sysctl for setting the IP addresses */ int sysctl_lasat_intvec(ctl_table *table, int *name, int nlen, void *oldval, size_t *oldlenp, void *newval, size_t newlen, void **context) { int r; down(&lasat_info_sem); r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen, context); if (r < 0) { up(&lasat_info_sem); return r; } if (newval && newlen) { lasat_write_eeprom_info(); } up(&lasat_info_sem); return 1; } #ifdef CONFIG_DS1603 /* Same for RTC */ int sysctl_lasat_rtc(ctl_table *table, int *name, int nlen, void *oldval, size_t *oldlenp, void *newval, size_t newlen, void **context) { int r; down(&lasat_info_sem); rtctmp = ds1603_read(); if (rtctmp < 0) rtctmp = 0; r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen, context); if (r < 0) { up(&lasat_info_sem); return r; } if (newval && newlen) { ds1603_set(rtctmp); } up(&lasat_info_sem); return 1; } #endif #ifdef CONFIG_INET static char lasat_bcastaddr[16]; void update_bcastaddr(void) { unsigned int ip; ip = (lasat_board_info.li_eeprom_info.ipaddr & lasat_board_info.li_eeprom_info.netmask) | ~lasat_board_info.li_eeprom_info.netmask; sprintf(lasat_bcastaddr, "%d.%d.%d.%d", (ip ) & 0xff, (ip >> 8) & 0xff, (ip >> 16) & 0xff, (ip >> 24) & 0xff); } static char proc_lasat_ipbuf[32]; /* Parsing of IP address */ int proc_lasat_ip(ctl_table *table, int write, struct file *filp, void *buffer, size_t *lenp, loff_t *ppos) { int len; unsigned int ip; char *p, c; if (!table->data || !table->maxlen || !*lenp || (*ppos && !write)) { *lenp = 0; return 0; } down(&lasat_info_sem); if (write) { len = 0; p = buffer; while (len < *lenp) { if(get_user(c, p++)) { up(&lasat_info_sem); return -EFAULT; } if (c == 0 || c == '\n') break; len++; } if (len >= sizeof(proc_lasat_ipbuf)-1) len = sizeof(proc_lasat_ipbuf) - 1; if (copy_from_user(proc_lasat_ipbuf, buffer, len)) { up(&lasat_info_sem); return -EFAULT; } proc_lasat_ipbuf[len] = 0; *ppos += *lenp; /* Now see if we can convert it to a valid IP */ ip = in_aton(proc_lasat_ipbuf); *(unsigned int *)(table->data) = ip; lasat_write_eeprom_info(); } else { ip = *(unsigned int *)(table->data); sprintf(proc_lasat_ipbuf, "%d.%d.%d.%d", (ip ) & 0xff, (ip >> 8) & 0xff, (ip >> 16) & 0xff, (ip >> 24) & 0xff); len = strlen(proc_lasat_ipbuf); if (len > *lenp) len = *lenp; if (len) if(copy_to_user(buffer, proc_lasat_ipbuf, len)) { up(&lasat_info_sem); return -EFAULT; } if (len < *lenp) { if(put_user('\n', ((char *) buffer) + len)) { up(&lasat_info_sem); return -EFAULT; } len++; } *lenp = len; *ppos += len; } update_bcastaddr(); up(&lasat_info_sem); return 0; } #endif /* defined(CONFIG_INET) */ static int sysctl_lasat_eeprom_value(ctl_table *table, int *name, int nlen, void *oldval, size_t *oldlenp, void *newval, size_t newlen, void **context) { int r; down(&lasat_info_sem); r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen, context); if (r < 0) { up(&lasat_info_sem); return r; } if (newval && newlen) { if (name && *name == LASAT_PRID) lasat_board_info.li_eeprom_info.prid = *(int*)newval; lasat_write_eeprom_info(); lasat_init_board_info(); } up(&lasat_info_sem); return 0; } int proc_lasat_eeprom_value(ctl_table *table, int write, struct file *filp, void *buffer, size_t *lenp, loff_t *ppos) { int r; down(&lasat_info_sem); r = proc_dointvec(table, write, filp, buffer, lenp, ppos); if ( (!write) || r) { up(&lasat_info_sem); return r; } if (filp && filp->f_dentry) { if (!strcmp(filp->f_dentry->d_name.name, "prid")) lasat_board_info.li_eeprom_info.prid = lasat_board_info.li_prid; if (!strcmp(filp->f_dentry->d_name.name, "debugaccess")) lasat_board_info.li_eeprom_info.debugaccess = lasat_board_info.li_debugaccess; } lasat_write_eeprom_info(); up(&lasat_info_sem); return 0; } extern int lasat_boot_to_service; #ifdef CONFIG_SYSCTL static ctl_table lasat_table[] = { {LASAT_CPU_HZ, "cpu-hz", &lasat_board_info.li_cpu_hz, sizeof(int), 0444, NULL, &proc_dointvec, &sysctl_intvec}, {LASAT_BUS_HZ, "bus-hz", &lasat_board_info.li_bus_hz, sizeof(int), 0444, NULL, &proc_dointvec, &sysctl_intvec}, {LASAT_MODEL, "bmid", &lasat_board_info.li_bmid, sizeof(int), 0444, NULL, &proc_dointvec, &sysctl_intvec}, {LASAT_PRID, "prid", &lasat_board_info.li_prid, sizeof(int), 0644, NULL, &proc_lasat_eeprom_value, &sysctl_lasat_eeprom_value}, #ifdef CONFIG_INET {LASAT_IPADDR, "ipaddr", &lasat_board_info.li_eeprom_info.ipaddr, sizeof(int), 0644, NULL, &proc_lasat_ip, &sysctl_lasat_intvec}, {LASAT_NETMASK, "netmask", &lasat_board_info.li_eeprom_info.netmask, sizeof(int), 0644, NULL, &proc_lasat_ip, &sysctl_lasat_intvec}, {LASAT_BCAST, "bcastaddr", &lasat_bcastaddr, sizeof(lasat_bcastaddr), 0600, NULL, &proc_dostring, &sysctl_string}, #endif {LASAT_PASSWORD, "passwd_hash", &lasat_board_info.li_eeprom_info.passwd_hash, sizeof(lasat_board_info.li_eeprom_info.passwd_hash), 0600, NULL, &proc_dolasatstring, &sysctl_lasatstring}, {LASAT_SBOOT, "boot-service", &lasat_boot_to_service, sizeof(int), 0644, NULL, &proc_dointvec, &sysctl_intvec}, #ifdef CONFIG_DS1603 {LASAT_RTC, "rtc", &rtctmp, sizeof(int), 0644, NULL, &proc_dolasatrtc, &sysctl_lasat_rtc}, #endif {LASAT_NAMESTR, "namestr", &lasat_board_info.li_namestr, sizeof(lasat_board_info.li_namestr), 0444, NULL, &proc_dostring, &sysctl_string}, {LASAT_TYPESTR, "typestr", &lasat_board_info.li_typestr, sizeof(lasat_board_info.li_typestr), 0444, NULL, &proc_dostring, &sysctl_string}, {0} }; #define CTL_LASAT 1 // CTL_ANY ??? static ctl_table lasat_root_table[] = { { CTL_LASAT, "lasat", NULL, 0, 0555, lasat_table }, { 0 } }; static int __init lasat_register_sysctl(void) { struct ctl_table_header *lasat_table_header; lasat_table_header = register_sysctl_table(lasat_root_table, 0); return 0; } __initcall(lasat_register_sysctl); #endif /* CONFIG_SYSCTL */