diff options
| -rw-r--r-- | arch/mips/lasat/lasat_board.c | 13 | ||||
| -rw-r--r-- | arch/mips/lasat/sysctl.c | 172 | ||||
| -rw-r--r-- | arch/mips/lasat/sysctl.h | 24 |
3 files changed, 56 insertions, 153 deletions
diff --git a/arch/mips/lasat/lasat_board.c b/arch/mips/lasat/lasat_board.c index ec2f658c370..31e328b3814 100644 --- a/arch/mips/lasat/lasat_board.c +++ b/arch/mips/lasat/lasat_board.c @@ -23,18 +23,19 @@ #include <linux/kernel.h> #include <linux/string.h> #include <linux/ctype.h> +#include <linux/mutex.h> #include <asm/bootinfo.h> #include <asm/addrspace.h> #include "at93c.h" /* New model description table */ #include "lasat_models.h" +static DEFINE_MUTEX(lasat_eeprom_mutex); + #define EEPROM_CRC(data, len) (~crc32(~0, data, len)) struct lasat_info lasat_board_info; -void update_bcastaddr(void); - int EEPROMRead(unsigned int pos, unsigned char *data, int len) { int i; @@ -258,10 +259,6 @@ int lasat_init_board_info(void) sprintf(lasat_board_info.li_typestr, "%d", 10 * c); } -#if defined(CONFIG_INET) && defined(CONFIG_SYSCTL) - update_bcastaddr(); -#endif - return 0; } @@ -269,6 +266,8 @@ void lasat_write_eeprom_info(void) { unsigned long crc; + mutex_lock(&lasat_eeprom_mutex); + /* Generate the CRC */ crc = EEPROM_CRC((unsigned char *)(&lasat_board_info.li_eeprom_info), sizeof(struct lasat_eeprom_struct) - 4); @@ -277,4 +276,6 @@ void lasat_write_eeprom_info(void) /* Write the EEPROM info */ EEPROMWrite(0, (unsigned char *)&lasat_board_info.li_eeprom_info, sizeof(struct lasat_eeprom_struct)); + + mutex_unlock(&lasat_eeprom_mutex); } diff --git a/arch/mips/lasat/sysctl.c b/arch/mips/lasat/sysctl.c index 389336c4ecc..866881ec0cf 100644 --- a/arch/mips/lasat/sysctl.c +++ b/arch/mips/lasat/sysctl.c @@ -29,15 +29,13 @@ #include <linux/string.h> #include <linux/net.h> #include <linux/inet.h> -#include <linux/mutex.h> #include <linux/uaccess.h> #include <asm/time.h> -#include "sysctl.h" +#ifdef CONFIG_DS1603 #include "ds1603.h" - -static DEFINE_MUTEX(lasat_info_mutex); +#endif /* Strategy function to write EEPROM after changing string entry */ int sysctl_lasatstring(ctl_table *table, int *name, int nlen, @@ -46,18 +44,15 @@ int sysctl_lasatstring(ctl_table *table, int *name, int nlen, { int r; - mutex_lock(&lasat_info_mutex); r = sysctl_string(table, name, nlen, oldval, oldlenp, newval, newlen); - if (r < 0) { - mutex_unlock(&lasat_info_mutex); + if (r < 0) return r; - } + if (newval && newlen) lasat_write_eeprom_info(); - mutex_unlock(&lasat_info_mutex); - return 1; + return 0; } @@ -67,14 +62,11 @@ int proc_dolasatstring(ctl_table *table, int write, struct file *filp, { int r; - mutex_lock(&lasat_info_mutex); r = proc_dostring(table, write, filp, buffer, lenp, ppos); - if ((!write) || r) { - mutex_unlock(&lasat_info_mutex); + if ((!write) || r) return r; - } + lasat_write_eeprom_info(); - mutex_unlock(&lasat_info_mutex); return 0; } @@ -85,28 +77,24 @@ int proc_dolasatint(ctl_table *table, int write, struct file *filp, { int r; - mutex_lock(&lasat_info_mutex); r = proc_dointvec(table, write, filp, buffer, lenp, ppos); - if ((!write) || r) { - mutex_unlock(&lasat_info_mutex); + if ((!write) || r) return r; - } + lasat_write_eeprom_info(); - mutex_unlock(&lasat_info_mutex); return 0; } +#ifdef CONFIG_DS1603 static int rtctmp; -#ifdef CONFIG_DS1603 /* proc function to read/write RealTime Clock */ int proc_dolasatrtc(ctl_table *table, int write, struct file *filp, void *buffer, size_t *lenp, loff_t *ppos) { int r; - mutex_lock(&lasat_info_mutex); if (!write) { rtctmp = read_persistent_clock(); /* check for time < 0 and set to 0 */ @@ -114,12 +102,11 @@ int proc_dolasatrtc(ctl_table *table, int write, struct file *filp, rtctmp = 0; } r = proc_dointvec(table, write, filp, buffer, lenp, ppos); - if ((!write) || r) { - mutex_unlock(&lasat_info_mutex); + if (r) return r; - } - rtc_mips_set_mmss(rtctmp); - mutex_unlock(&lasat_info_mutex); + + if (write) + rtc_mips_set_mmss(rtctmp); return 0; } @@ -132,17 +119,14 @@ int sysctl_lasat_intvec(ctl_table *table, int *name, int nlen, { int r; - mutex_lock(&lasat_info_mutex); r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen); - if (r < 0) { - mutex_unlock(&lasat_info_mutex); + if (r < 0) return r; - } + if (newval && newlen) lasat_write_eeprom_info(); - mutex_unlock(&lasat_info_mutex); - return 1; + return 0; } #ifdef CONFIG_DS1603 @@ -153,50 +137,27 @@ int sysctl_lasat_rtc(ctl_table *table, int *name, int nlen, { int r; - mutex_lock(&lasat_info_mutex); rtctmp = read_persistent_clock(); if (rtctmp < 0) rtctmp = 0; r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen); - if (r < 0) { - mutex_unlock(&lasat_info_mutex); + if (r < 0) return r; - } if (newval && newlen) rtc_mips_set_mmss(rtctmp); - mutex_unlock(&lasat_info_mutex); - return 1; + return r; } #endif #ifdef CONFIG_INET -static char lasat_bcastaddr[16]; - -void update_bcastaddr(void) -{ - unsigned int ip; - - ip = (lasat_board_info.li_eeprom_info.ipaddr & - lasat_board_info.li_eeprom_info.netmask) | - ~lasat_board_info.li_eeprom_info.netmask; - - sprintf(lasat_bcastaddr, "%d.%d.%d.%d", - (ip) & 0xff, - (ip >> 8) & 0xff, - (ip >> 16) & 0xff, - (ip >> 24) & 0xff); -} - -static char proc_lasat_ipbuf[32]; - -/* Parsing of IP address */ int proc_lasat_ip(ctl_table *table, int write, struct file *filp, 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)) { @@ -204,117 +165,88 @@ int proc_lasat_ip(ctl_table *table, int write, struct file *filp, return 0; } - mutex_lock(&lasat_info_mutex); if (write) { len = 0; p = buffer; while (len < *lenp) { - if (get_user(c, p++)) { - mutex_unlock(&lasat_info_mutex); + if (get_user(c, p++)) return -EFAULT; - } if (c == 0 || c == '\n') break; len++; } - if (len >= sizeof(proc_lasat_ipbuf)-1) - len = sizeof(proc_lasat_ipbuf) - 1; - if (copy_from_user(proc_lasat_ipbuf, buffer, len)) { - mutex_unlock(&lasat_info_mutex); + if (len >= sizeof(ipbuf)-1) + len = sizeof(ipbuf) - 1; + if (copy_from_user(ipbuf, buffer, len)) return -EFAULT; - } - proc_lasat_ipbuf[len] = 0; + ipbuf[len] = 0; *ppos += *lenp; /* Now see if we can convert it to a valid IP */ - ip = in_aton(proc_lasat_ipbuf); + ip = in_aton(ipbuf); *(unsigned int *)(table->data) = ip; lasat_write_eeprom_info(); } else { ip = *(unsigned int *)(table->data); - sprintf(proc_lasat_ipbuf, "%d.%d.%d.%d", + sprintf(ipbuf, "%d.%d.%d.%d", (ip) & 0xff, (ip >> 8) & 0xff, (ip >> 16) & 0xff, (ip >> 24) & 0xff); - len = strlen(proc_lasat_ipbuf); + len = strlen(ipbuf); if (len > *lenp) len = *lenp; if (len) - if (copy_to_user(buffer, proc_lasat_ipbuf, len)) { - mutex_unlock(&lasat_info_mutex); + if (copy_to_user(buffer, ipbuf, len)) return -EFAULT; - } if (len < *lenp) { - if (put_user('\n', ((char *) buffer) + len)) { - mutex_unlock(&lasat_info_mutex); + if (put_user('\n', ((char *) buffer) + len)) return -EFAULT; - } len++; } *lenp = len; *ppos += len; } - update_bcastaddr(); - mutex_unlock(&lasat_info_mutex); return 0; } -#endif /* defined(CONFIG_INET) */ +#endif -static int sysctl_lasat_eeprom_value(ctl_table *table, int *name, int nlen, +static int sysctl_lasat_prid(ctl_table *table, int *name, int nlen, void *oldval, size_t *oldlenp, void *newval, size_t newlen) { int r; - mutex_lock(&lasat_info_mutex); r = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval, newlen); - if (r < 0) { - mutex_unlock(&lasat_info_mutex); + if (r < 0) return r; - } - if (newval && newlen) { - if (name && *name == LASAT_PRID) - lasat_board_info.li_eeprom_info.prid = *(int *)newval; - + lasat_board_info.li_eeprom_info.prid = *(int *)newval; lasat_write_eeprom_info(); lasat_init_board_info(); } - mutex_unlock(&lasat_info_mutex); - return 0; } -int proc_lasat_eeprom_value(ctl_table *table, int write, struct file *filp, +int proc_lasat_prid(ctl_table *table, int write, struct file *filp, void *buffer, size_t *lenp, loff_t *ppos) { int r; - mutex_lock(&lasat_info_mutex); r = proc_dointvec(table, write, filp, buffer, lenp, ppos); - if ((!write) || r) { - mutex_unlock(&lasat_info_mutex); + 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(); } - if (filp && filp->f_path.dentry) { - if (!strcmp(filp->f_path.dentry->d_name.name, "prid")) - lasat_board_info.li_eeprom_info.prid = - lasat_board_info.li_prid; - if (!strcmp(filp->f_path.dentry->d_name.name, "debugaccess")) - lasat_board_info.li_eeprom_info.debugaccess = - lasat_board_info.li_debugaccess; - } - lasat_write_eeprom_info(); - mutex_unlock(&lasat_info_mutex); - return 0; } extern int lasat_boot_to_service; -#ifdef CONFIG_SYSCTL - static ctl_table lasat_table[] = { { .ctl_name = CTL_UNNUMBERED, @@ -349,8 +281,8 @@ static ctl_table lasat_table[] = { .data = &lasat_board_info.li_prid, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = &proc_lasat_eeprom_value, - .strategy = &sysctl_lasat_eeprom_value + .proc_handler = &proc_lasat_prid, + .strategy = &sysctl_lasat_prid }, #ifdef CONFIG_INET { @@ -363,7 +295,7 @@ static ctl_table lasat_table[] = { .strategy = &sysctl_lasat_intvec }, { - .ctl_name = LASAT_NETMASK, + .ctl_name = CTL_UNNUMBERED, .procname = "netmask", .data = &lasat_board_info.li_eeprom_info.netmask, .maxlen = sizeof(int), @@ -371,15 +303,6 @@ static ctl_table lasat_table[] = { .proc_handler = &proc_lasat_ip, .strategy = &sysctl_lasat_intvec }, - { - .ctl_name = CTL_UNNUMBERED, - .procname = "bcastaddr", - .data = &lasat_bcastaddr, - .maxlen = sizeof(lasat_bcastaddr), - .mode = 0600, - .proc_handler = &proc_dostring, - .strategy = &sysctl_string - }, #endif { .ctl_name = CTL_UNNUMBERED, @@ -417,7 +340,7 @@ static ctl_table lasat_table[] = { .data = &lasat_board_info.li_namestr, .maxlen = sizeof(lasat_board_info.li_namestr), .mode = 0444, - .proc_handler = &proc_dostring, + .proc_handler = &proc_dostring, .strategy = &sysctl_string }, { @@ -448,9 +371,12 @@ static int __init lasat_register_sysctl(void) 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); -#endif /* CONFIG_SYSCTL */ diff --git a/arch/mips/lasat/sysctl.h b/arch/mips/lasat/sysctl.h deleted file mode 100644 index 341b9793342..00000000000 --- a/arch/mips/lasat/sysctl.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * LASAT sysctl values - */ - -#ifndef _LASAT_SYSCTL_H -#define _LASAT_SYSCTL_H - -/* /proc/sys/lasat */ -enum { - LASAT_CPU_HZ = 1, - LASAT_BUS_HZ, - LASAT_MODEL, - LASAT_PRID, - LASAT_IPADDR, - LASAT_NETMASK, - LASAT_BCAST, - LASAT_PASSWORD, - LASAT_SBOOT, - LASAT_RTC, - LASAT_NAMESTR, - LASAT_TYPESTR, -}; - -#endif /* _LASAT_SYSCTL_H */ |