for(i = range_start; i <= range_end; i++) {
checksum += nvram_read(i);
}
- checksum = (~checksum)&0xffff;
checksum_old = ((nvram_read(checksum_location)<<8) | nvram_read(checksum_location+1));
return (checksum_old == checksum);
}
+void fix_options_checksum(void)
+{
+ int i;
+ int range_start = lib_sysinfo.cmos_range_start / 8;
+ int range_end = lib_sysinfo.cmos_range_end / 8;
+ int checksum_location = lib_sysinfo.cmos_checksum_location / 8;
+ u16 checksum = 0;
+
+ for(i = range_start; i <= range_end; i++) {
+ checksum += nvram_read(i);
+ }
+
+ nvram_write((checksum >> 8), checksum_location);
+ nvram_write((checksum & 0xff), checksum_location + 1);
+}
+
static int get_cmos_value(u32 bitnum, u32 len, void *valptr)
{
u8 *value = (u8 *)valptr;
u32 addr, bit;
u8 reg8;
- value = valptr;
-
/* Convert to byte borders */
addr=(bitnum / 8);
bit=(bitnum % 8);
return 0;
}
-int get_option(void *dest, char *name)
+int get_option_from(struct cb_cmos_option_table *option_table, void *dest, char *name)
{
- struct cb_cmos_option_table *option_table = phys_to_virt(lib_sysinfo.option_table);
struct cb_cmos_entries *cmos_entry;
int len = strnlen(name, CMOS_MAX_NAME_LENGTH);
-
+
/* cmos entries are located right after the option table */
- cmos_entry=(struct cb_cmos_entries*)((unsigned char *)option_table + option_table->header_length);
for ( cmos_entry = (struct cb_cmos_entries*)((unsigned char *)option_table + option_table->header_length);
cmos_entry->tag == CB_TAG_OPTION;
printf("ERROR: No such CMOS option (%s)\n", name);
return 1;
}
+
+int get_option(void *dest, char *name)
+{
+ struct cb_cmos_option_table *option_table = phys_to_virt(lib_sysinfo.option_table);
+ return get_option_from(option_table, dest, name);
+}