Initial import

1 files changed, 273 insertions, 0 deletions

diff --git a/arch/mips/lasat/sysctl.c b/arch/mips/lasat/sysctl.c
new file mode 100644
index 000000000..a57959e64
--- /dev/null
+++ b/arch/mips/lasat/sysctl.c
@@ -0,0 +1,273 @@
+/*
+ * 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(struct 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;
+}
+
+#ifdef CONFIG_DS1603
+static int rtctmp;
+
+/* proc function to read/write RealTime Clock */
+int proc_dolasatrtc(struct ctl_table *table, int write,
+		       void *buffer, size_t *lenp, loff_t *ppos)
+{
+	struct timespec64 ts;
+	int r;
+
+	if (!write) {
+		read_persistent_clock64(&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(struct 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(struct 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 struct 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 struct 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);