1 /* 2 * PS3 System Manager core. 3 * 4 * Copyright (C) 2007 Sony Computer Entertainment Inc. 5 * Copyright 2007 Sony Corp. 6 * 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. 10 * 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. 15 * 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 19 */ 20 21 #include <linux/kernel.h> 22 #include <linux/export.h> 23 #include <asm/lv1call.h> 24 #include <asm/ps3.h> 25 26 /** 27 * Staticly linked routines that allow late binding of a loaded sys-manager 28 * module. 29 */ 30 31 static struct ps3_sys_manager_ops ps3_sys_manager_ops; 32 33 /** 34 * ps3_register_sys_manager_ops - Bind ps3_sys_manager_ops to a module. 35 * @ops: struct ps3_sys_manager_ops. 36 * 37 * To be called from ps3_sys_manager_probe() and ps3_sys_manager_remove() to 38 * register call back ops for power control. Copies data to the static 39 * variable ps3_sys_manager_ops. 40 */ 41 42 void ps3_sys_manager_register_ops(const struct ps3_sys_manager_ops *ops) 43 { 44 BUG_ON(!ops); 45 BUG_ON(!ops->dev); 46 ps3_sys_manager_ops = ops ? *ops : ps3_sys_manager_ops; 47 } 48 EXPORT_SYMBOL_GPL(ps3_sys_manager_register_ops); 49 50 void __noreturn ps3_sys_manager_power_off(void) 51 { 52 if (ps3_sys_manager_ops.power_off) 53 ps3_sys_manager_ops.power_off(ps3_sys_manager_ops.dev); 54 55 ps3_sys_manager_halt(); 56 } 57 58 void __noreturn ps3_sys_manager_restart(void) 59 { 60 if (ps3_sys_manager_ops.restart) 61 ps3_sys_manager_ops.restart(ps3_sys_manager_ops.dev); 62 63 ps3_sys_manager_halt(); 64 } 65 66 void __noreturn ps3_sys_manager_halt(void) 67 { 68 pr_emerg("System Halted, OK to turn off power\n"); 69 local_irq_disable(); 70 while (1) 71 lv1_pause(1); 72 } 73 74