Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / ps3 / sys-manager-core.c

diff --git a/kernel/drivers/ps3/sys-manager-core.c b/kernel/drivers/ps3/sys-manager-core.c
new file mode 100644 (file)
index 0000000..c429ffc
--- /dev/null
+++ b/kernel/drivers/ps3/sys-manager-core.c
@@ -0,0 +1,73 @@
+/*
+ *  PS3 System Manager core.
+ *
+ *  Copyright (C) 2007 Sony Computer Entertainment Inc.
+ *  Copyright 2007 Sony Corp.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that 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, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <asm/lv1call.h>
+#include <asm/ps3.h>
+
+/**
+ * Staticly linked routines that allow late binding of a loaded sys-manager
+ * module.
+ */
+
+static struct ps3_sys_manager_ops ps3_sys_manager_ops;
+
+/**
+ * ps3_register_sys_manager_ops - Bind ps3_sys_manager_ops to a module.
+ * @ops: struct ps3_sys_manager_ops.
+ *
+ * To be called from ps3_sys_manager_probe() and ps3_sys_manager_remove() to
+ * register call back ops for power control.  Copies data to the static
+ * variable ps3_sys_manager_ops.
+ */
+
+void ps3_sys_manager_register_ops(const struct ps3_sys_manager_ops *ops)
+{
+       BUG_ON(!ops);
+       BUG_ON(!ops->dev);
+       ps3_sys_manager_ops = ops ? *ops : ps3_sys_manager_ops;
+}
+EXPORT_SYMBOL_GPL(ps3_sys_manager_register_ops);
+
+void __noreturn ps3_sys_manager_power_off(void)
+{
+       if (ps3_sys_manager_ops.power_off)
+               ps3_sys_manager_ops.power_off(ps3_sys_manager_ops.dev);
+
+       ps3_sys_manager_halt();
+}
+
+void __noreturn ps3_sys_manager_restart(void)
+{
+       if (ps3_sys_manager_ops.restart)
+               ps3_sys_manager_ops.restart(ps3_sys_manager_ops.dev);
+
+       ps3_sys_manager_halt();
+}
+
+void __noreturn ps3_sys_manager_halt(void)
+{
+       pr_emerg("System Halted, OK to turn off power\n");
+       local_irq_disable();
+       while (1)
+               lv1_pause(1);
+}
+