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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/mips/lasat/sysctl.c | |
parent | Initial commit. (diff) | |
download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/mips/lasat/sysctl.c')
-rw-r--r-- | arch/mips/lasat/sysctl.c | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/arch/mips/lasat/sysctl.c b/arch/mips/lasat/sysctl.c new file mode 100644 index 000000000..ead07c243 --- /dev/null +++ b/arch/mips/lasat/sysctl.c @@ -0,0 +1,280 @@ +/* + * 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/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) { + /* + * Due to the RTC hardware limitation, we can not actually + * use the full 64-bit range here. + */ + ts.tv_sec = rtctmp; + ts.tv_nsec = 0; + + update_persistent_clock64(ts); + } + + 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; +} + +arch_initcall(lasat_register_sysctl); |