1 | // SPDX-License-Identifier: GPL-2.0-only |
---|---|
2 | /* |
3 | * PS3 System Manager core. |
4 | * |
5 | * Copyright (C) 2007 Sony Computer Entertainment Inc. |
6 | * Copyright 2007 Sony Corp. |
7 | */ |
8 | |
9 | #include <linux/kernel.h> |
10 | #include <linux/export.h> |
11 | #include <asm/lv1call.h> |
12 | #include <asm/ps3.h> |
13 | |
14 | /** |
15 | * Staticly linked routines that allow late binding of a loaded sys-manager |
16 | * module. |
17 | */ |
18 | |
19 | static struct ps3_sys_manager_ops ps3_sys_manager_ops; |
20 | |
21 | /** |
22 | * ps3_register_sys_manager_ops - Bind ps3_sys_manager_ops to a module. |
23 | * @ops: struct ps3_sys_manager_ops. |
24 | * |
25 | * To be called from ps3_sys_manager_probe() and ps3_sys_manager_remove() to |
26 | * register call back ops for power control. Copies data to the static |
27 | * variable ps3_sys_manager_ops. |
28 | */ |
29 | |
30 | void ps3_sys_manager_register_ops(const struct ps3_sys_manager_ops *ops) |
31 | { |
32 | BUG_ON(!ops); |
33 | BUG_ON(!ops->dev); |
34 | ps3_sys_manager_ops = *ops; |
35 | } |
36 | EXPORT_SYMBOL_GPL(ps3_sys_manager_register_ops); |
37 | |
38 | void __noreturn ps3_sys_manager_power_off(void) |
39 | { |
40 | if (ps3_sys_manager_ops.power_off) |
41 | ps3_sys_manager_ops.power_off(ps3_sys_manager_ops.dev); |
42 | |
43 | ps3_sys_manager_halt(); |
44 | } |
45 | |
46 | void __noreturn ps3_sys_manager_restart(void) |
47 | { |
48 | if (ps3_sys_manager_ops.restart) |
49 | ps3_sys_manager_ops.restart(ps3_sys_manager_ops.dev); |
50 | |
51 | ps3_sys_manager_halt(); |
52 | } |
53 | |
54 | void __noreturn ps3_sys_manager_halt(void) |
55 | { |
56 | pr_emerg("System Halted, OK to turn off power\n"); |
57 | local_irq_disable(); |
58 | while (1) |
59 | lv1_pause(1); |
60 | } |
61 | |
62 |