2 * Thomas Horsten <thh@lasat.com>
3 * Copyright (C) 2000 LASAT Networks A/S.
5 * This program is free software; you can distribute it and/or modify it
6 * under the terms of the GNU General Public License (Version 2) as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
18 * Routines specific to the LASAT boards
20 #include <linux/types.h>
21 #include <asm/lasat/lasat.h>
23 #include <linux/module.h>
24 #include <linux/sysctl.h>
25 #include <linux/stddef.h>
26 #include <linux/init.h>
28 #include <linux/ctype.h>
29 #include <linux/string.h>
30 #include <linux/net.h>
31 #include <linux/inet.h>
32 #include <linux/mutex.h>
33 #include <asm/uaccess.h>
38 static DEFINE_MUTEX(lasat_info_mutex);
40 /* Strategy function to write EEPROM after changing string entry */
41 int sysctl_lasatstring(ctl_table *table, int *name, int nlen,
42 void *oldval, size_t *oldlenp,
43 void *newval, size_t newlen)
46 mutex_lock(&lasat_info_mutex);
47 r = sysctl_string(table, name,
48 nlen, oldval, oldlenp, newval, newlen);
50 mutex_unlock(&lasat_info_mutex);
53 if (newval && newlen) {
54 lasat_write_eeprom_info();
56 mutex_unlock(&lasat_info_mutex);
61 /* And the same for proc */
62 int proc_dolasatstring(ctl_table *table, int write, struct file *filp,
63 void *buffer, size_t *lenp, loff_t *ppos)
66 mutex_lock(&lasat_info_mutex);
67 r = proc_dostring(table, write, filp, buffer, lenp, ppos);
69 mutex_unlock(&lasat_info_mutex);
72 lasat_write_eeprom_info();
73 mutex_unlock(&lasat_info_mutex);
77 /* proc function to write EEPROM after changing int entry */
78 int proc_dolasatint(ctl_table *table, int write, struct file *filp,
79 void *buffer, size_t *lenp, loff_t *ppos)
82 mutex_lock(&lasat_info_mutex);
83 r = proc_dointvec(table, write, filp, buffer, lenp, ppos);
85 mutex_unlock(&lasat_info_mutex);
88 lasat_write_eeprom_info();
89 mutex_unlock(&lasat_info_mutex);
96 /* proc function to read/write RealTime Clock */
97 int proc_dolasatrtc(ctl_table *table, int write, struct file *filp,
98 void *buffer, size_t *lenp, loff_t *ppos)
101 mutex_lock(&lasat_info_mutex);
103 rtctmp = ds1603_read();
104 /* check for time < 0 and set to 0 */
108 r = proc_dointvec(table, write, filp, buffer, lenp, ppos);
109 if ( (!write) || r) {
110 mutex_unlock(&lasat_info_mutex);
114 mutex_unlock(&lasat_info_mutex);
119 /* Sysctl for setting the IP addresses */
120 int sysctl_lasat_intvec(ctl_table *table, int *name, int nlen,
121 void *oldval, size_t *oldlenp,
122 void *newval, size_t newlen)
125 mutex_lock(&lasat_info_mutex);
126 r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen);
128 mutex_unlock(&lasat_info_mutex);
131 if (newval && newlen) {
132 lasat_write_eeprom_info();
134 mutex_unlock(&lasat_info_mutex);
140 int sysctl_lasat_rtc(ctl_table *table, int *name, int nlen,
141 void *oldval, size_t *oldlenp,
142 void *newval, size_t newlen)
145 mutex_lock(&lasat_info_mutex);
146 rtctmp = ds1603_read();
149 r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen);
151 mutex_unlock(&lasat_info_mutex);
154 if (newval && newlen) {
157 mutex_unlock(&lasat_info_mutex);
163 static char lasat_bcastaddr[16];
165 void update_bcastaddr(void)
169 ip = (lasat_board_info.li_eeprom_info.ipaddr &
170 lasat_board_info.li_eeprom_info.netmask) |
171 ~lasat_board_info.li_eeprom_info.netmask;
173 sprintf(lasat_bcastaddr, "%d.%d.%d.%d",
180 static char proc_lasat_ipbuf[32];
181 /* Parsing of IP address */
182 int proc_lasat_ip(ctl_table *table, int write, struct file *filp,
183 void *buffer, size_t *lenp, loff_t *ppos)
189 if (!table->data || !table->maxlen || !*lenp ||
195 mutex_lock(&lasat_info_mutex);
199 while (len < *lenp) {
200 if(get_user(c, p++)) {
201 mutex_unlock(&lasat_info_mutex);
204 if (c == 0 || c == '\n')
208 if (len >= sizeof(proc_lasat_ipbuf)-1)
209 len = sizeof(proc_lasat_ipbuf) - 1;
210 if (copy_from_user(proc_lasat_ipbuf, buffer, len))
212 mutex_unlock(&lasat_info_mutex);
215 proc_lasat_ipbuf[len] = 0;
217 /* Now see if we can convert it to a valid IP */
218 ip = in_aton(proc_lasat_ipbuf);
219 *(unsigned int *)(table->data) = ip;
220 lasat_write_eeprom_info();
222 ip = *(unsigned int *)(table->data);
223 sprintf(proc_lasat_ipbuf, "%d.%d.%d.%d",
228 len = strlen(proc_lasat_ipbuf);
232 if(copy_to_user(buffer, proc_lasat_ipbuf, len)) {
233 mutex_unlock(&lasat_info_mutex);
237 if(put_user('\n', ((char *) buffer) + len)) {
238 mutex_unlock(&lasat_info_mutex);
247 mutex_unlock(&lasat_info_mutex);
250 #endif /* defined(CONFIG_INET) */
252 static int sysctl_lasat_eeprom_value(ctl_table *table, int *name, int nlen,
253 void *oldval, size_t *oldlenp,
254 void *newval, size_t newlen)
258 mutex_lock(&lasat_info_mutex);
259 r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen);
261 mutex_unlock(&lasat_info_mutex);
265 if (newval && newlen)
267 if (name && *name == LASAT_PRID)
268 lasat_board_info.li_eeprom_info.prid = *(int*)newval;
270 lasat_write_eeprom_info();
271 lasat_init_board_info();
273 mutex_unlock(&lasat_info_mutex);
278 int proc_lasat_eeprom_value(ctl_table *table, int write, struct file *filp,
279 void *buffer, size_t *lenp, loff_t *ppos)
282 mutex_lock(&lasat_info_mutex);
283 r = proc_dointvec(table, write, filp, buffer, lenp, ppos);
284 if ( (!write) || r) {
285 mutex_unlock(&lasat_info_mutex);
288 if (filp && filp->f_path.dentry)
290 if (!strcmp(filp->f_path.dentry->d_name.name, "prid"))
291 lasat_board_info.li_eeprom_info.prid = lasat_board_info.li_prid;
292 if (!strcmp(filp->f_path.dentry->d_name.name, "debugaccess"))
293 lasat_board_info.li_eeprom_info.debugaccess = lasat_board_info.li_debugaccess;
295 lasat_write_eeprom_info();
296 mutex_unlock(&lasat_info_mutex);
300 extern int lasat_boot_to_service;
304 static ctl_table lasat_table[] = {
306 .ctl_name = CTL_UNNUMBERED,
307 .procname = "cpu-hz",
308 .data = &lasat_board_info.li_cpu_hz,
309 .maxlen = sizeof(int),
311 .proc_handler = &proc_dointvec,
312 .strategy = &sysctl_intvec
315 .ctl_name = CTL_UNNUMBERED,
316 .procname = "bus-hz",
317 .data = &lasat_board_info.li_bus_hz,
318 .maxlen = sizeof(int),
320 .proc_handler = &proc_dointvec,
321 .strategy = &sysctl_intvec
324 .ctl_name = CTL_UNNUMBERED,
326 .data = &lasat_board_info.li_bmid,
327 .maxlen = sizeof(int),
329 .proc_handler = &proc_dointvec,
330 .strategy = &sysctl_intvec
333 .ctl_name = CTL_UNNUMBERED,
335 .data = &lasat_board_info.li_prid,
336 .maxlen = sizeof(int),
338 .proc_handler = &proc_lasat_eeprom_value,
339 .strategy = &sysctl_lasat_eeprom_value
343 .ctl_name = CTL_UNNUMBERED,
344 .procname = "ipaddr",
345 .data = &lasat_board_info.li_eeprom_info.ipaddr,
346 .maxlen = sizeof(int),
348 .proc_handler = &proc_lasat_ip,
349 .strategy = &sysctl_lasat_intvec
352 .ctl_name = LASAT_NETMASK,
353 .procname = "netmask",
354 .data = &lasat_board_info.li_eeprom_info.netmask,
355 .maxlen = sizeof(int),
357 .proc_handler = &proc_lasat_ip,
358 .strategy = &sysctl_lasat_intvec
361 .ctl_name = CTL_UNNUMBERED,
362 .procname = "bcastaddr",
363 .data = &lasat_bcastaddr,
364 .maxlen = sizeof(lasat_bcastaddr),
366 .proc_handler = &proc_dostring,
367 .strategy = &sysctl_string
371 .ctl_name = CTL_UNNUMBERED,
372 .procname = "passwd_hash",
373 .data = &lasat_board_info.li_eeprom_info.passwd_hash,
374 .maxlen = sizeof(lasat_board_info.li_eeprom_info.passwd_hash),
376 .proc_handler = &proc_dolasatstring,
377 .strategy = &sysctl_lasatstring
380 .ctl_name = CTL_UNNUMBERED,
381 .procname = "boot-service",
382 .data = &lasat_boot_to_service,
383 .maxlen = sizeof(int),
385 .proc_handler = &proc_dointvec,
386 .strategy = &sysctl_intvec
390 .ctl_name = CTL_UNNUMBERED,
393 .maxlen = sizeof(int),
395 .proc_handler = &proc_dolasatrtc,
396 .strategy = &sysctl_lasat_rtc
400 .ctl_name = CTL_UNNUMBERED,
401 .procname = "namestr",
402 .data = &lasat_board_info.li_namestr,
403 .maxlen = sizeof(lasat_board_info.li_namestr),
405 .proc_handler = &proc_dostring,
406 .strategy = &sysctl_string
409 .ctl_name = CTL_UNNUMBERED,
410 .procname = "typestr",
411 .data = &lasat_board_info.li_typestr,
412 .maxlen = sizeof(lasat_board_info.li_typestr),
414 .proc_handler = &proc_dostring,
415 .strategy = &sysctl_string
420 static ctl_table lasat_root_table[] = {
422 .ctl_name = CTL_UNNUMBERED,
430 static int __init lasat_register_sysctl(void)
432 struct ctl_table_header *lasat_table_header;
435 register_sysctl_table(lasat_root_table);
440 __initcall(lasat_register_sysctl);
441 #endif /* CONFIG_SYSCTL */