void post_mobility_update(int action)
{
int rc;
int do_update = 0;
char *path;
if (action == HIBERNATE)
path = SYSFS_HIBERNATION_FILE;
else
path = SYSFS_MIGRATION_API_FILE;
/* kernel will return 0 or sysfs attribute will be unreadable if drmgr
needs to perform a device tree update */
rc = get_int_attribute(path, NULL, &do_update, sizeof(do_update));
if (rc)
say(DEBUG, "get_int_attribute returned %d for path %s\n", rc, path);
if (!do_update) {
rc = rtas_activate_firmware();
if (rc)
say(DEBUG, "rtas_activate_firmware() returned %d\n", rc);
devtree_update();
}
}
static int activate_firmware(void)
{
int rc;
rc = rtas_activate_firmware();
/* Map 'rc' to valid return code listed above */
switch (rc) {
/* 0 - Success!! */
case 0:
if (verbose)
printf("activate_firmware: rtas call succeeded\n");
break;
/* 1 - activate-firmware not supported */
case RTAS_KERNEL_INT: /* No kernel interface to firmware */
case RTAS_KERNEL_IMP: /* No kernel implementation of function */
case RTAS_UNKNOWN_OP: /* No firmware implementation of function */
if (verbose) {
printf("activate_fw: rtas call returned %d, "
"converting to %d\n", rc, 1);
}
rc = 1;
break;
/* 2 - no new firmware to activate */
case -9001:
if (verbose) {
printf("activate_fw: rtas call returned %d, "
"converting to %d\n", rc, 2);
}
rc = 2;
break;
/* 3 - no root authority */
case RTAS_PERM:
if (verbose) {
printf("activate_fw: rtas call returned %d, "
"converting to %d\n", rc, 3);
}
rc = 3;
break;
/* 4 - hardware error */
case -1:
if (verbose) {
printf("activate_fw: rtas call returned %d, "
"converting to %d\n", rc, 4);
}
rc = 4;
break;
/* 5 - Memory/resource allocation error */
case RTAS_NO_MEM:
case RTAS_NO_LOWMEM:
if (verbose) {
printf("activate_fw: rtas call returned %d, "
"converting to %d\n", rc, 5);
}
rc = 5;
break;
case -3:
if (verbose) {
printf("activate_fw: rtas call returned %d, "
"converting to %d\n", rc, 8);
}
rc = 8;
break;
/* 6 - catch all other return codes here */
default:
if (verbose) {
printf("activate_fw: rtas call returned %d, "
"converting to %d\n", rc, 6);
}
rc = 6;
break;
}
return rc;
}