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