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1f21d2bd BM |
1 | /* |
2 | * Thomas Horsten <thh@lasat.com> | |
3 | * Copyright (C) 2000 LASAT Networks A/S. | |
4 | * | |
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. | |
8 | * | |
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 | |
12 | * for more details. | |
13 | * | |
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. | |
17 | * | |
18 | * Routines specific to the LASAT boards | |
19 | */ | |
20 | #include <linux/types.h> | |
21 | #include <asm/lasat/lasat.h> | |
22 | ||
23 | #include <linux/module.h> | |
24 | #include <linux/sysctl.h> | |
25 | #include <linux/stddef.h> | |
26 | #include <linux/init.h> | |
27 | #include <linux/fs.h> | |
28 | #include <linux/ctype.h> | |
29 | #include <linux/string.h> | |
30 | #include <linux/net.h> | |
31 | #include <linux/inet.h> | |
1f21d2bd BM |
32 | #include <linux/uaccess.h> |
33 | ||
4b550488 RB |
34 | #include <asm/time.h> |
35 | ||
1f34f2e4 | 36 | #ifdef CONFIG_DS1603 |
1f21d2bd | 37 | #include "ds1603.h" |
1f34f2e4 | 38 | #endif |
1f21d2bd BM |
39 | |
40 | /* Strategy function to write EEPROM after changing string entry */ | |
f221e726 | 41 | int sysctl_lasatstring(ctl_table *table, |
1f21d2bd BM |
42 | void *oldval, size_t *oldlenp, |
43 | void *newval, size_t newlen) | |
44 | { | |
45 | int r; | |
46 | ||
f221e726 | 47 | r = sysctl_string(table, oldval, oldlenp, newval, newlen); |
1f34f2e4 | 48 | if (r < 0) |
1f21d2bd | 49 | return r; |
1f34f2e4 | 50 | |
1f21d2bd BM |
51 | if (newval && newlen) |
52 | lasat_write_eeprom_info(); | |
1f21d2bd | 53 | |
1f34f2e4 | 54 | return 0; |
1f21d2bd BM |
55 | } |
56 | ||
57 | ||
58 | /* And the same for proc */ | |
59 | int proc_dolasatstring(ctl_table *table, int write, struct file *filp, | |
60 | void *buffer, size_t *lenp, loff_t *ppos) | |
61 | { | |
62 | int r; | |
63 | ||
1f21d2bd | 64 | r = proc_dostring(table, write, filp, buffer, lenp, ppos); |
1f34f2e4 | 65 | if ((!write) || r) |
1f21d2bd | 66 | return r; |
1f34f2e4 | 67 | |
1f21d2bd | 68 | lasat_write_eeprom_info(); |
1f21d2bd BM |
69 | |
70 | return 0; | |
71 | } | |
72 | ||
73 | /* proc function to write EEPROM after changing int entry */ | |
74 | int proc_dolasatint(ctl_table *table, int write, struct file *filp, | |
75 | void *buffer, size_t *lenp, loff_t *ppos) | |
76 | { | |
77 | int r; | |
78 | ||
1f21d2bd | 79 | r = proc_dointvec(table, write, filp, buffer, lenp, ppos); |
1f34f2e4 | 80 | if ((!write) || r) |
1f21d2bd | 81 | return r; |
1f34f2e4 | 82 | |
1f21d2bd | 83 | lasat_write_eeprom_info(); |
1f21d2bd BM |
84 | |
85 | return 0; | |
86 | } | |
87 | ||
1f34f2e4 | 88 | #ifdef CONFIG_DS1603 |
1f21d2bd BM |
89 | static int rtctmp; |
90 | ||
1f21d2bd BM |
91 | /* proc function to read/write RealTime Clock */ |
92 | int proc_dolasatrtc(ctl_table *table, int write, struct file *filp, | |
93 | void *buffer, size_t *lenp, loff_t *ppos) | |
94 | { | |
d4f587c6 | 95 | struct timespec ts; |
1f21d2bd BM |
96 | int r; |
97 | ||
1f21d2bd | 98 | if (!write) { |
d4f587c6 MS |
99 | read_persistent_clock(&ts); |
100 | rtctmp = ts.tv_sec; | |
1f21d2bd BM |
101 | /* check for time < 0 and set to 0 */ |
102 | if (rtctmp < 0) | |
103 | rtctmp = 0; | |
104 | } | |
105 | r = proc_dointvec(table, write, filp, buffer, lenp, ppos); | |
1f34f2e4 | 106 | if (r) |
1f21d2bd | 107 | return r; |
1f34f2e4 TH |
108 | |
109 | if (write) | |
110 | rtc_mips_set_mmss(rtctmp); | |
1f21d2bd BM |
111 | |
112 | return 0; | |
113 | } | |
114 | #endif | |
115 | ||
116 | /* Sysctl for setting the IP addresses */ | |
f221e726 | 117 | int sysctl_lasat_intvec(ctl_table *table, |
1f21d2bd BM |
118 | void *oldval, size_t *oldlenp, |
119 | void *newval, size_t newlen) | |
120 | { | |
121 | int r; | |
122 | ||
f221e726 | 123 | r = sysctl_intvec(table, oldval, oldlenp, newval, newlen); |
1f34f2e4 | 124 | if (r < 0) |
1f21d2bd | 125 | return r; |
1f34f2e4 | 126 | |
1f21d2bd BM |
127 | if (newval && newlen) |
128 | lasat_write_eeprom_info(); | |
1f21d2bd | 129 | |
1f34f2e4 | 130 | return 0; |
1f21d2bd BM |
131 | } |
132 | ||
133 | #ifdef CONFIG_DS1603 | |
134 | /* Same for RTC */ | |
f221e726 | 135 | int sysctl_lasat_rtc(ctl_table *table, |
1f21d2bd BM |
136 | void *oldval, size_t *oldlenp, |
137 | void *newval, size_t newlen) | |
138 | { | |
d4f587c6 | 139 | struct timespec ts; |
1f21d2bd BM |
140 | int r; |
141 | ||
d4f587c6 MS |
142 | read_persistent_clock(&ts); |
143 | rtctmp = ts.tv_sec; | |
1f21d2bd BM |
144 | if (rtctmp < 0) |
145 | rtctmp = 0; | |
f221e726 | 146 | r = sysctl_intvec(table, oldval, oldlenp, newval, newlen); |
1f34f2e4 | 147 | if (r < 0) |
1f21d2bd | 148 | return r; |
1f21d2bd | 149 | if (newval && newlen) |
4b550488 | 150 | rtc_mips_set_mmss(rtctmp); |
1f21d2bd | 151 | |
1f34f2e4 | 152 | return r; |
1f21d2bd BM |
153 | } |
154 | #endif | |
155 | ||
156 | #ifdef CONFIG_INET | |
1f21d2bd BM |
157 | int proc_lasat_ip(ctl_table *table, int write, struct file *filp, |
158 | void *buffer, size_t *lenp, loff_t *ppos) | |
159 | { | |
160 | unsigned int ip; | |
161 | char *p, c; | |
162 | int len; | |
1f34f2e4 | 163 | char ipbuf[32]; |
1f21d2bd BM |
164 | |
165 | if (!table->data || !table->maxlen || !*lenp || | |
166 | (*ppos && !write)) { | |
167 | *lenp = 0; | |
168 | return 0; | |
169 | } | |
170 | ||
1f21d2bd BM |
171 | if (write) { |
172 | len = 0; | |
173 | p = buffer; | |
174 | while (len < *lenp) { | |
1f34f2e4 | 175 | if (get_user(c, p++)) |
1f21d2bd | 176 | return -EFAULT; |
1f21d2bd BM |
177 | if (c == 0 || c == '\n') |
178 | break; | |
179 | len++; | |
180 | } | |
1f34f2e4 TH |
181 | if (len >= sizeof(ipbuf)-1) |
182 | len = sizeof(ipbuf) - 1; | |
183 | if (copy_from_user(ipbuf, buffer, len)) | |
1f21d2bd | 184 | return -EFAULT; |
1f34f2e4 | 185 | ipbuf[len] = 0; |
1f21d2bd BM |
186 | *ppos += *lenp; |
187 | /* Now see if we can convert it to a valid IP */ | |
1f34f2e4 | 188 | ip = in_aton(ipbuf); |
1f21d2bd BM |
189 | *(unsigned int *)(table->data) = ip; |
190 | lasat_write_eeprom_info(); | |
191 | } else { | |
192 | ip = *(unsigned int *)(table->data); | |
1f34f2e4 | 193 | sprintf(ipbuf, "%d.%d.%d.%d", |
1f21d2bd BM |
194 | (ip) & 0xff, |
195 | (ip >> 8) & 0xff, | |
196 | (ip >> 16) & 0xff, | |
197 | (ip >> 24) & 0xff); | |
1f34f2e4 | 198 | len = strlen(ipbuf); |
1f21d2bd BM |
199 | if (len > *lenp) |
200 | len = *lenp; | |
201 | if (len) | |
1f34f2e4 | 202 | if (copy_to_user(buffer, ipbuf, len)) |
1f21d2bd | 203 | return -EFAULT; |
1f21d2bd | 204 | if (len < *lenp) { |
1f34f2e4 | 205 | if (put_user('\n', ((char *) buffer) + len)) |
1f21d2bd | 206 | return -EFAULT; |
1f21d2bd BM |
207 | len++; |
208 | } | |
209 | *lenp = len; | |
210 | *ppos += len; | |
211 | } | |
1f21d2bd BM |
212 | |
213 | return 0; | |
214 | } | |
1f34f2e4 | 215 | #endif |
1f21d2bd | 216 | |
f221e726 | 217 | static int sysctl_lasat_prid(ctl_table *table, |
1f21d2bd BM |
218 | void *oldval, size_t *oldlenp, |
219 | void *newval, size_t newlen) | |
220 | { | |
221 | int r; | |
222 | ||
f221e726 | 223 | r = sysctl_intvec(table, oldval, oldlenp, newval, newlen); |
1f34f2e4 | 224 | if (r < 0) |
1f21d2bd | 225 | return r; |
1f21d2bd | 226 | if (newval && newlen) { |
1f34f2e4 | 227 | lasat_board_info.li_eeprom_info.prid = *(int *)newval; |
1f21d2bd BM |
228 | lasat_write_eeprom_info(); |
229 | lasat_init_board_info(); | |
230 | } | |
1f21d2bd BM |
231 | return 0; |
232 | } | |
233 | ||
1f34f2e4 | 234 | int proc_lasat_prid(ctl_table *table, int write, struct file *filp, |
1f21d2bd BM |
235 | void *buffer, size_t *lenp, loff_t *ppos) |
236 | { | |
237 | int r; | |
238 | ||
1f21d2bd | 239 | r = proc_dointvec(table, write, filp, buffer, lenp, ppos); |
1f34f2e4 | 240 | if (r < 0) |
1f21d2bd | 241 | return r; |
1f34f2e4 TH |
242 | if (write) { |
243 | lasat_board_info.li_eeprom_info.prid = | |
244 | lasat_board_info.li_prid; | |
245 | lasat_write_eeprom_info(); | |
246 | lasat_init_board_info(); | |
1f21d2bd | 247 | } |
1f21d2bd BM |
248 | return 0; |
249 | } | |
250 | ||
251 | extern int lasat_boot_to_service; | |
252 | ||
1f21d2bd BM |
253 | static ctl_table lasat_table[] = { |
254 | { | |
255 | .ctl_name = CTL_UNNUMBERED, | |
256 | .procname = "cpu-hz", | |
257 | .data = &lasat_board_info.li_cpu_hz, | |
258 | .maxlen = sizeof(int), | |
259 | .mode = 0444, | |
260 | .proc_handler = &proc_dointvec, | |
261 | .strategy = &sysctl_intvec | |
262 | }, | |
263 | { | |
264 | .ctl_name = CTL_UNNUMBERED, | |
265 | .procname = "bus-hz", | |
266 | .data = &lasat_board_info.li_bus_hz, | |
267 | .maxlen = sizeof(int), | |
268 | .mode = 0444, | |
269 | .proc_handler = &proc_dointvec, | |
270 | .strategy = &sysctl_intvec | |
271 | }, | |
272 | { | |
273 | .ctl_name = CTL_UNNUMBERED, | |
274 | .procname = "bmid", | |
275 | .data = &lasat_board_info.li_bmid, | |
276 | .maxlen = sizeof(int), | |
277 | .mode = 0444, | |
278 | .proc_handler = &proc_dointvec, | |
279 | .strategy = &sysctl_intvec | |
280 | }, | |
281 | { | |
282 | .ctl_name = CTL_UNNUMBERED, | |
283 | .procname = "prid", | |
284 | .data = &lasat_board_info.li_prid, | |
285 | .maxlen = sizeof(int), | |
286 | .mode = 0644, | |
1f34f2e4 TH |
287 | .proc_handler = &proc_lasat_prid, |
288 | .strategy = &sysctl_lasat_prid | |
1f21d2bd BM |
289 | }, |
290 | #ifdef CONFIG_INET | |
291 | { | |
292 | .ctl_name = CTL_UNNUMBERED, | |
293 | .procname = "ipaddr", | |
294 | .data = &lasat_board_info.li_eeprom_info.ipaddr, | |
295 | .maxlen = sizeof(int), | |
296 | .mode = 0644, | |
297 | .proc_handler = &proc_lasat_ip, | |
298 | .strategy = &sysctl_lasat_intvec | |
299 | }, | |
300 | { | |
1f34f2e4 | 301 | .ctl_name = CTL_UNNUMBERED, |
1f21d2bd BM |
302 | .procname = "netmask", |
303 | .data = &lasat_board_info.li_eeprom_info.netmask, | |
304 | .maxlen = sizeof(int), | |
305 | .mode = 0644, | |
306 | .proc_handler = &proc_lasat_ip, | |
307 | .strategy = &sysctl_lasat_intvec | |
308 | }, | |
1f21d2bd BM |
309 | #endif |
310 | { | |
311 | .ctl_name = CTL_UNNUMBERED, | |
312 | .procname = "passwd_hash", | |
313 | .data = &lasat_board_info.li_eeprom_info.passwd_hash, | |
314 | .maxlen = | |
315 | sizeof(lasat_board_info.li_eeprom_info.passwd_hash), | |
316 | .mode = 0600, | |
317 | .proc_handler = &proc_dolasatstring, | |
318 | .strategy = &sysctl_lasatstring | |
319 | }, | |
320 | { | |
321 | .ctl_name = CTL_UNNUMBERED, | |
322 | .procname = "boot-service", | |
323 | .data = &lasat_boot_to_service, | |
324 | .maxlen = sizeof(int), | |
325 | .mode = 0644, | |
326 | .proc_handler = &proc_dointvec, | |
327 | .strategy = &sysctl_intvec | |
328 | }, | |
329 | #ifdef CONFIG_DS1603 | |
330 | { | |
331 | .ctl_name = CTL_UNNUMBERED, | |
332 | .procname = "rtc", | |
333 | .data = &rtctmp, | |
334 | .maxlen = sizeof(int), | |
335 | .mode = 0644, | |
336 | .proc_handler = &proc_dolasatrtc, | |
337 | .strategy = &sysctl_lasat_rtc | |
338 | }, | |
339 | #endif | |
340 | { | |
341 | .ctl_name = CTL_UNNUMBERED, | |
342 | .procname = "namestr", | |
343 | .data = &lasat_board_info.li_namestr, | |
344 | .maxlen = sizeof(lasat_board_info.li_namestr), | |
345 | .mode = 0444, | |
1f34f2e4 | 346 | .proc_handler = &proc_dostring, |
1f21d2bd BM |
347 | .strategy = &sysctl_string |
348 | }, | |
349 | { | |
350 | .ctl_name = CTL_UNNUMBERED, | |
351 | .procname = "typestr", | |
352 | .data = &lasat_board_info.li_typestr, | |
353 | .maxlen = sizeof(lasat_board_info.li_typestr), | |
354 | .mode = 0444, | |
355 | .proc_handler = &proc_dostring, | |
356 | .strategy = &sysctl_string | |
357 | }, | |
358 | {} | |
359 | }; | |
360 | ||
361 | static ctl_table lasat_root_table[] = { | |
362 | { | |
363 | .ctl_name = CTL_UNNUMBERED, | |
364 | .procname = "lasat", | |
365 | .mode = 0555, | |
366 | .child = lasat_table | |
367 | }, | |
368 | {} | |
369 | }; | |
370 | ||
371 | static int __init lasat_register_sysctl(void) | |
372 | { | |
373 | struct ctl_table_header *lasat_table_header; | |
374 | ||
375 | lasat_table_header = | |
376 | register_sysctl_table(lasat_root_table); | |
1f34f2e4 TH |
377 | if (!lasat_table_header) { |
378 | printk(KERN_ERR "Unable to register LASAT sysctl\n"); | |
379 | return -ENOMEM; | |
380 | } | |
1f21d2bd BM |
381 | |
382 | return 0; | |
383 | } | |
384 | ||
385 | __initcall(lasat_register_sysctl); |