int share_region_handle(void)
{
if (!check_share_region()) {
memset(share_region, 0x0, 0x1000);
}
tmp = share_region->flags.kernel_flag; //this can clear the flag
memset(share_region, 0x0, 0x1000);
share_region->flags.uboot_flag = tmp;
return recovery_handle();
}
void share_region_handle(void)
{
if (FLAG_RECOVER_MODE == share_region->flags) {
gRebootRecovery = 1;
printf("share_region->flags=%d\n", share_region->flags);
}
if(!check_share_region())
{
//printf("Share region: CRC invalid.\n");
memset(share_region, 0x0, sizeof(share_region_t));
}
save_share_region();
}
int __init share_region_init(void)
{
unsigned int i;
struct proc_dir_entry *dir;
share_region = ioremap(SHARE_REGION_BASE, SHARE_REGION_SIZE);
printk("share_region checksum = %lx, and flag = %x\n", share_region->checksum, share_region->flags.uboot_flag);
if (!share_region)
printk("++++++++++++++++++++++++++++++++++fail to reserve!\n");
#if 0
for (i = 0; i < 10; i++) {
printk("%d:[%0x] = %x\n", i, share_region + 4*i, *(unsigned int *)(share_region + 4*i));
}
#endif
if (!check_share_region()) {
printk("+++++++++++++++++++++++++++++++++++share_region invalid\n");
clear_flags();
}
dir = proc_mkdir("share_region", NULL);
if (!dir) {
printk("could not create /proc/share_region\n");
}
for (i =0 ; i < (sizeof(flag_proc) / sizeof(*flag_proc)); i++) {
struct proc_dir_entry *tmp;
mode_t mode;
mode = 0;
if (flag_proc[i].flag_get) {
mode |= S_IRUGO;
}
if (flag_proc[i].flag_set) {
mode |= S_IWUGO;
}
tmp = create_proc_entry(flag_proc[i].path, mode, dir);
if (tmp) {
tmp->data = (void *)&flag_proc[i];
tmp->read_proc = proc_flag_read;
tmp->write_proc = proc_flag_write;
}
else {
printk("could not create /proc/share_region/%s\n", flag_proc[i].path);
}
}
return i;
}