patch-2.2.18 linux/include/linux/pm.h

• Lines: 89
• Date: Mon Sep 11 19:58:51 2000
• Orig file: v2.2.17/include/linux/pm.h
• Orig date: Thu Jan 1 01:00:00 1970

diff -u --new-file --recursive --exclude-from /usr/src/exclude v2.2.17/include/linux/pm.h linux/include/linux/pm.h
@@ -0,0 +1,88 @@
+#ifndef __LINUX_PM_H
+#define __LINUX_PM_H
+
+
+typedef int pm_request_t;
+
+struct pm_dev {
+	void *data;
+	struct pm_dev *next;
+	int (*event)(struct pm_dev *, pm_request_t, void *);
+};
+
+#define PM_SUSPEND	1
+#define PM_RESUME	2
+
+#ifdef CONFIG_APM
+
+#include <linux/apm_bios.h>
+
+#define PM_PCI_DEV	0
+#define PM_PCI_ID(a)	a
+
+static struct pm_dev *pm_dev = NULL;
+
+static int handle_apm_event(apm_event_t apm_event)
+{
+	struct pm_dev *list = pm_dev;
+	pm_request_t action;
+
+	switch (apm_event) {
+
+		case APM_SYS_SUSPEND:
+		case APM_CRITICAL_SUSPEND:
+		case APM_USER_SUSPEND:
+			action = PM_SUSPEND;
+			break;
+		case APM_NORMAL_RESUME:
+		case APM_CRITICAL_RESUME:
+		case APM_STANDBY_RESUME:
+			action = PM_RESUME;
+			break;
+		default:
+			return 0;
+	}
+
+	while (list) {
+		list->event(list, action, list->data);
+		list = list->next;
+	}
+
+	return 0;
+}
+
+static struct pm_dev *pm_register(int a, void *b, int (*event)(struct pm_dev *, pm_request_t, void *))
+{
+	struct pm_dev *list;
+	
+	list = kmalloc(sizeof(struct pm_dev), GFP_KERNEL);
+	list->event = event;
+	list->next = pm_dev;
+	pm_dev = list;
+
+	apm_register_callback(handle_apm_event);
+
+	return list;
+}
+
+static void pm_unregister_all(int (*event)(struct pm_dev *, pm_request_t, void *))
+{
+	struct pm_dev *list;
+
+	while (pm_dev) {
+		list = pm_dev;
+		pm_dev = pm_dev->next;
+		kfree(list);
+	}
+
+	apm_unregister_callback(handle_apm_event);
+}
+
+#else
+
+#define pm_register(a,b,c)	0
+#define pm_unregister_all(a)	do {} while (0)
+
+#endif
+
+#endif