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873e65bc | 1 | // SPDX-License-Identifier: GPL-2.0-only |
66c63b84 GL |
2 | /* |
3 | * PS3 System Manager core. | |
4 | * | |
5 | * Copyright (C) 2007 Sony Computer Entertainment Inc. | |
6 | * Copyright 2007 Sony Corp. | |
66c63b84 GL |
7 | */ |
8 | ||
9 | #include <linux/kernel.h> | |
66b15db6 | 10 | #include <linux/export.h> |
ca052f79 | 11 | #include <asm/lv1call.h> |
66c63b84 GL |
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); | |
96efbab9 | 34 | ps3_sys_manager_ops = *ops; |
66c63b84 GL |
35 | } |
36 | EXPORT_SYMBOL_GPL(ps3_sys_manager_register_ops); | |
37 | ||
fcc48075 | 38 | void __noreturn ps3_sys_manager_power_off(void) |
66c63b84 GL |
39 | { |
40 | if (ps3_sys_manager_ops.power_off) | |
41 | ps3_sys_manager_ops.power_off(ps3_sys_manager_ops.dev); | |
42 | ||
ca052f79 | 43 | ps3_sys_manager_halt(); |
66c63b84 GL |
44 | } |
45 | ||
fcc48075 | 46 | void __noreturn ps3_sys_manager_restart(void) |
66c63b84 GL |
47 | { |
48 | if (ps3_sys_manager_ops.restart) | |
49 | ps3_sys_manager_ops.restart(ps3_sys_manager_ops.dev); | |
50 | ||
ca052f79 GU |
51 | ps3_sys_manager_halt(); |
52 | } | |
53 | ||
fcc48075 | 54 | void __noreturn ps3_sys_manager_halt(void) |
ca052f79 GU |
55 | { |
56 | pr_emerg("System Halted, OK to turn off power\n"); | |
66c63b84 GL |
57 | local_irq_disable(); |
58 | while (1) | |
ca052f79 | 59 | lv1_pause(1); |
66c63b84 | 60 | } |
ca052f79 | 61 |