static int handle_switch_event(struct uevent *event)
{
char *name = get_uevent_param(event, "SWITCH_NAME");
char *state = get_uevent_param(event, "SWITCH_STATE");
if (!strcmp(name, "usb_mass_storage")) {
if (!strcmp(state, "online")) {
ums_hostconnected_set(true);
} else {
ums_hostconnected_set(false);
volmgr_enable_ums(false);
}
} else if (!strcmp(name, "sd-door")) {
if (!strcmp(state, "open"))
door_open = true;
else
door_open = false;
volmgr_safe_mode(low_batt || door_open);
}
return 0;
}
static int do_set_ums_enable(char *cmd)
{
#ifdef ADD_ISO
static struct devmapping *loop = NULL;
static struct devmapping loopback;
static char devpath[4096];
// TODO: lun_syspath を変更する必要がある。
static char *lun_syspath = "/sys/devices/platform/s3c-usbgadget/gadget/lun0/file";
LOG_VOL("do_set_ums_enable:%s:%s\n", cmd, lun_syspath);
if (!strcmp(cmd, VOLD_CMD_ENABLE_UMS_SD)) {
loop = NULL;
LOG_VOL("do_set_ums_enable:%s\n", VOLD_CMD_ENABLE_UMS_SD);
return volmgr_enable_ums(true);
} else if (!strncmp(cmd, VOLD_CMD_ENABLE_UMS_CD, strlen(VOLD_CMD_ENABLE_UMS_CD))) {
/* ループバックデバイスパスの取得 */
LOG_VOL("do_set_ums_enable:%s\n", VOLD_CMD_ENABLE_UMS_CD);
int rc = 0;
memset(devpath, 0, 4096);
memcpy(devpath, &cmd[strlen(VOLD_CMD_ENABLE_UMS_CD)],
strlen(&cmd[strlen(VOLD_CMD_ENABLE_UMS_CD)]));
LOG_VOL("do_set_ums_enable devpath=%s\n", devpath);
/* ループバックデバイスの登録 */
loopback.src_type = dmsrc_loopback;
loopback.type_data.loop.loop_src = devpath;
loopback.type_data.loop.loop_dev = NULL;
rc = loopback_start(&loopback);
if (rc) {
LOGE("loopback_start err=%d\n", rc);
}
/* ループバックデバイスパスをカーネルに追加する */
/* カーネルにはloopback dev登録であることを知らせナイトね */
rc = ums_enable(loopback.type_data.loop.loop_dev, lun_syspath, false);
if (rc) {
LOGE("ums_enable err=%d\n", rc);
}
loop = &loopback;
return 0;
} else {
int ret = 0;
LOG_VOL("do_set_ums_enable:%s\n", "disable_ums\n");
if (loop) {
int rc;
rc = ums_disable(lun_syspath);
if (rc) {
LOGE("ums_enable err=%d\n", rc);
}
/* ループバックデバイスの解除 */
rc = loopback_stop(loop);
if (rc) {
LOGE("loopback_stop err=%d\n", rc);
} else {
free(loopback.type_data.loop.loop_dev);
loopback.type_data.loop.loop_dev = NULL;
}
} else {
ret = volmgr_enable_ums(false);
}
loop = NULL;
return ret;
}
#else
if (!strcmp(cmd, VOLD_CMD_ENABLE_UMS))
return volmgr_enable_ums(true);
return volmgr_enable_ums(false);
#endif /* ADD_ISO */
}