Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / ps3 / sys-manager-core.c
blob474225852b63689500c87c6631677a502ed471e2
1 /*
2 * PS3 System Manager core.
4 * Copyright (C) 2007 Sony Computer Entertainment Inc.
5 * Copyright 2007 Sony Corp.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include <linux/kernel.h>
22 #include <asm/lv1call.h>
23 #include <asm/ps3.h>
25 /**
26 * Staticly linked routines that allow late binding of a loaded sys-manager
27 * module.
30 static struct ps3_sys_manager_ops ps3_sys_manager_ops;
32 /**
33 * ps3_register_sys_manager_ops - Bind ps3_sys_manager_ops to a module.
34 * @ops: struct ps3_sys_manager_ops.
36 * To be called from ps3_sys_manager_probe() and ps3_sys_manager_remove() to
37 * register call back ops for power control. Copies data to the static
38 * variable ps3_sys_manager_ops.
41 void ps3_sys_manager_register_ops(const struct ps3_sys_manager_ops *ops)
43 BUG_ON(!ops);
44 BUG_ON(!ops->dev);
45 ps3_sys_manager_ops = ops ? *ops : ps3_sys_manager_ops;
47 EXPORT_SYMBOL_GPL(ps3_sys_manager_register_ops);
49 void ps3_sys_manager_power_off(void)
51 if (ps3_sys_manager_ops.power_off)
52 ps3_sys_manager_ops.power_off(ps3_sys_manager_ops.dev);
54 ps3_sys_manager_halt();
57 void ps3_sys_manager_restart(void)
59 if (ps3_sys_manager_ops.restart)
60 ps3_sys_manager_ops.restart(ps3_sys_manager_ops.dev);
62 ps3_sys_manager_halt();
65 void ps3_sys_manager_halt(void)
67 pr_emerg("System Halted, OK to turn off power\n");
68 local_irq_disable();
69 while (1)
70 lv1_pause(1);