summaryrefslogtreecommitdiffstats
path: root/arch/mips/lasat/sysctl.c
blob: 1dbdd76a8c044fefbf9efe2065e38c7c7c558504 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
/*
 * 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/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 <linux/uaccess.h>

#include <asm/time.h>

#ifdef CONFIG_DS1603
#include "ds1603.h"
#endif


/* And the same for proc */
int proc_dolasatstring(ctl_table *table, int write,
		       void *buffer, size_t *lenp, loff_t *ppos)
{
	int r;

	r = proc_dostring(table, write, buffer, lenp, ppos);
	if ((!write) || r)
		return r;

	lasat_write_eeprom_info();

	return 0;
}

/* proc function to write EEPROM after changing int entry */
int proc_dolasatint(ctl_table *table, int write,
		       void *buffer, size_t *lenp, loff_t *ppos)
{
	int r;

	r = proc_dointvec(table, write, buffer, lenp, ppos);
	if ((!write) || r)
		return r;

	lasat_write_eeprom_info();

	return 0;
}

#ifdef CONFIG_DS1603
static int rtctmp;

/* proc function to read/write RealTime Clock */
int proc_dolasatrtc(ctl_table *table, int write,
		       void *buffer, size_t *lenp, loff_t *ppos)
{
	struct timespec ts;
	int r;

	if (!write) {
		read_persistent_clock(&ts);
		rtctmp = ts.tv_sec;
		/* check for time < 0 and set to 0 */
		if (rtctmp < 0)
			rtctmp = 0;
	}
	r = proc_dointvec(table, write, buffer, lenp, ppos);
	if (r)
		return r;

	if (write)
		rtc_mips_set_mmss(rtctmp);

	return 0;
}
#endif

#ifdef CONFIG_INET
int proc_lasat_ip(ctl_table *table, int write,
		       void *buffer, size_t *lenp, loff_t *ppos)
{
	unsigned int ip;
	char *p, c;
	int len;
	char ipbuf[32];

	if (!table->data || !table->maxlen || !*lenp ||
	    (*ppos && !write)) {
		*lenp = 0;
		return 0;
	}

	if (write) {
		len = 0;
		p = buffer;
		while (len < *lenp) {
			if (get_user(c, p++))
				return -EFAULT;
			if (c == 0 || c == '\n')
				break;
			len++;
		}
		if (len >= sizeof(ipbuf)-1)
			len = sizeof(ipbuf) - 1;
		if (copy_from_user(ipbuf, buffer, len))
			return -EFAULT;
		ipbuf[len] = 0;
		*ppos += *lenp;
		/* Now see if we can convert it to a valid IP */
		ip = in_aton(ipbuf);
		*(unsigned int *)(table->data) = ip;
		lasat_write_eeprom_info();
	} else {
		ip = *(unsigned int *)(table->data);
		sprintf(ipbuf, "%d.%d.%d.%d",
			(ip)       & 0xff,
			(ip >>  8) & 0xff,
			(ip >> 16) & 0xff,
			(ip >> 24) & 0xff);
		len = strlen(ipbuf);
		if (len > *lenp)
			len = *lenp;
		if (len)
			if (copy_to_user(buffer, ipbuf, len))
				return -EFAULT;
		if (len < *lenp) {
			if (put_user('\n', ((char *) buffer) + len))
				return -EFAULT;
			len++;
		}
		*lenp = len;
		*ppos += len;
	}

	return 0;
}
#endif

int proc_lasat_prid(ctl_table *table, int write,
		       void *buffer, size_t *lenp, loff_t *ppos)
{
	int r;

	r = proc_dointvec(table, write, buffer, lenp, ppos);
	if (r < 0)
		return r;
	if (write) {
		lasat_board_info.li_eeprom_info.prid =
			lasat_board_info.li_prid;
		lasat_write_eeprom_info();
		lasat_init_board_info();
	}
	return 0;
}

extern int lasat_boot_to_service;

static ctl_table lasat_table[] = {
	{
		.procname	= "cpu-hz",
		.data		= &lasat_board_info.li_cpu_hz,
		.maxlen		= sizeof(int),
		.mode		= 0444,
		.proc_handler	= &proc_dointvec,
	},
	{
		.procname	= "bus-hz",
		.data		= &lasat_board_info.li_bus_hz,
		.maxlen		= sizeof(int),
		.mode		= 0444,
		.proc_handler	= &proc_dointvec,
	},
	{
		.procname	= "bmid",
		.data		= &lasat_board_info.li_bmid,
		.maxlen		= sizeof(int),
		.mode		= 0444,
		.proc_handler	= &proc_dointvec,
	},
	{
		.procname	= "prid",
		.data		= &lasat_board_info.li_prid,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= &proc_lasat_prid,
.	},
#ifdef CONFIG_INET
	{
		.procname	= "ipaddr",
		.data		= &lasat_board_info.li_eeprom_info.ipaddr,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= &proc_lasat_ip,
	},
	{
		.procname	= "netmask",
		.data		= &lasat_board_info.li_eeprom_info.netmask,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= &proc_lasat_ip,
	},
#endif
	{
		.procname	= "passwd_hash",
		.data		= &lasat_board_info.li_eeprom_info.passwd_hash,
		.maxlen		=
			sizeof(lasat_board_info.li_eeprom_info.passwd_hash),
		.mode		= 0600,
		.proc_handler	= &proc_dolasatstring,
	},
	{
		.procname	= "boot-service",
		.data		= &lasat_boot_to_service,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= &proc_dointvec,
	},
#ifdef CONFIG_DS1603
	{
		.procname	= "rtc",
		.data		= &rtctmp,
		.maxlen		= sizeof(int),
		.mode		= 0644,
		.proc_handler	= &proc_dolasatrtc,
	},
#endif
	{
		.procname	= "namestr",
		.data		= &lasat_board_info.li_namestr,
		.maxlen		= sizeof(lasat_board_info.li_namestr),
		.mode		= 0444,
		.proc_handler	= &proc_dostring,
	},
	{
		.procname	= "typestr",
		.data		= &lasat_board_info.li_typestr,
		.maxlen		= sizeof(lasat_board_info.li_typestr),
		.mode		= 0444,
		.proc_handler	= &proc_dostring,
	},
	{}
};

static ctl_table lasat_root_table[] = {
	{
		.procname	= "lasat",
		.mode		=  0555,
		.child		= lasat_table
	},
	{}
};

static int __init lasat_register_sysctl(void)
{
	struct ctl_table_header *lasat_table_header;

	lasat_table_header =
		register_sysctl_table(lasat_root_table);
	if (!lasat_table_header) {
		printk(KERN_ERR "Unable to register LASAT sysctl\n");
		return -ENOMEM;
	}

	return 0;
}

__initcall(lasat_register_sysctl);