1. 根目录:
2. include
3. linux
4. mailbox.h

/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */

int pl320_ipc_transmit(u32 *data);
int pl320_ipc_register_notifier(struct notifier_block *nb);
int pl320_ipc_unregister_notifier(struct notifier_block *nb);