patch-2.4.6 linux/drivers/acpi/ospm/button/bn_osl.c

• Lines: 245
• Date: Wed Jun 20 17:47:40 2001
• Orig file: v2.4.5/linux/drivers/acpi/ospm/button/bn_osl.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.5/linux/drivers/acpi/ospm/button/bn_osl.c linux/drivers/acpi/ospm/button/bn_osl.c
@@ -0,0 +1,244 @@
+/******************************************************************************
+ *
+ * Module Name: bn_osl.c
+ *   $Revision: 10 $
+ *
+ *****************************************************************************/
+
+/*
+ *  Copyright (C) 2000, 2001 Andrew Grover
+ *
+ *  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; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/proc_fs.h>
+#include <acpi.h>
+#include "bn.h"
+
+
+MODULE_AUTHOR("Andrew Grover");
+MODULE_DESCRIPTION("ACPI Component Architecture (CA) - Button Driver");
+
+
+#define BN_PROC_ROOT		"button"
+#define BN_PROC_POWER_BUTTON	"power"
+#define BN_PROC_SLEEP_BUTTON	"sleep"
+#define BN_PROC_LID_SWITCH	"lid"
+
+extern struct proc_dir_entry	*bm_proc_root;
+static struct proc_dir_entry	*bn_proc_root = NULL;
+
+
+/****************************************************************************
+ *
+ * FUNCTION:	bn_osl_add_device
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+bn_osl_add_device(
+	BN_CONTEXT		*button)
+{
+	ACPI_STATUS		status = AE_OK;
+
+	if (!button) {
+		return(AE_BAD_PARAMETER);
+	}
+
+	switch (button->type) {
+
+	case BN_TYPE_POWER_BUTTON:
+	case BN_TYPE_POWER_BUTTON_FIXED:
+		printk(KERN_INFO "Power Button: found\n");
+		if (!proc_mkdir(BN_PROC_POWER_BUTTON, bn_proc_root)) {
+			status = AE_ERROR;
+		}
+		break;
+
+	case BN_TYPE_SLEEP_BUTTON:
+	case BN_TYPE_SLEEP_BUTTON_FIXED:
+		printk(KERN_INFO "Sleep Button: found\n");
+		if (!proc_mkdir(BN_PROC_SLEEP_BUTTON, bn_proc_root)) {
+			status = AE_ERROR;
+		}
+		break;
+
+	case BN_TYPE_LID_SWITCH:
+		printk(KERN_INFO "Lid Switch: found\n");
+		if (!proc_mkdir(BN_PROC_LID_SWITCH, bn_proc_root)) {
+			status = AE_ERROR;
+		}
+		break;
+	}
+
+	return(status);
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION:	bn_osl_remove_device
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+bn_osl_remove_device (
+	BN_CONTEXT		*button)
+{
+	if (!button) {
+		return(AE_BAD_PARAMETER);
+	}
+
+	switch (button->type) {
+
+	case BN_TYPE_POWER_BUTTON:
+	case BN_TYPE_POWER_BUTTON_FIXED:
+		remove_proc_entry(BN_PROC_POWER_BUTTON, bn_proc_root);
+		break;
+
+	case BN_TYPE_SLEEP_BUTTON:
+	case BN_TYPE_SLEEP_BUTTON_FIXED:
+		remove_proc_entry(BN_PROC_SLEEP_BUTTON, bn_proc_root);
+		break;
+
+	case BN_TYPE_LID_SWITCH:
+		remove_proc_entry(BN_PROC_LID_SWITCH, bn_proc_root);
+		break;
+	}
+
+	return(AE_OK);
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION:	bn_osl_generate_event
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+bn_osl_generate_event (
+	u32			event,
+	BN_CONTEXT		*button)
+{
+	ACPI_STATUS		status = AE_OK;
+
+	if (!button) {
+		return(AE_BAD_PARAMETER);
+	}
+
+	switch (event) {
+
+	case BN_NOTIFY_STATUS_CHANGE:
+
+		switch(button->type) {
+
+		case BN_TYPE_POWER_BUTTON:
+		case BN_TYPE_POWER_BUTTON_FIXED:
+			status = bm_osl_generate_event(button->device_handle,
+				BN_PROC_ROOT, BN_PROC_POWER_BUTTON, event, 0);
+			break;
+
+		case BN_TYPE_SLEEP_BUTTON:
+		case BN_TYPE_SLEEP_BUTTON_FIXED:
+			status = bm_osl_generate_event(button->device_handle,
+				BN_PROC_ROOT, BN_PROC_SLEEP_BUTTON, event, 0);
+			break;
+
+		case BN_TYPE_LID_SWITCH:
+			status = bm_osl_generate_event(button->device_handle,
+				BN_PROC_ROOT, BN_PROC_LID_SWITCH, event, 0);
+			break;
+
+		default:
+			status = AE_SUPPORT;
+			break;
+		}
+
+		break;
+
+	default:
+		return(AE_BAD_PARAMETER);
+		break;
+	}
+
+	return(status);
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION:    bn_osl_init
+ *
+ * PARAMETERS:	<none>
+ *
+ * RETURN:	0: Success
+ *
+ * DESCRIPTION: Module initialization.
+ *
+ ****************************************************************************/
+
+static int __init 
+bn_osl_init (void)
+{
+	ACPI_STATUS		status = AE_OK;
+
+	bn_proc_root = proc_mkdir(BN_PROC_ROOT, bm_proc_root);
+	if (!bn_proc_root) {
+		status = AE_ERROR;
+	}
+	else {
+		status = bn_initialize();
+		if (ACPI_FAILURE(status)) {
+			remove_proc_entry(BN_PROC_ROOT, bm_proc_root);
+		}
+	}
+
+	return (ACPI_SUCCESS(status)) ? 0 : -ENODEV;
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION:    bn_osl_cleanup
+ *
+ * PARAMETERS:	<none>
+ *
+ * RETURN:	<none>
+ *
+ * DESCRIPTION: Module cleanup.
+ *
+ ****************************************************************************/
+
+static void __exit 
+bn_osl_cleanup (void)
+{
+	bn_terminate();
+
+	if (bn_proc_root) {
+		remove_proc_entry(BN_PROC_ROOT, bm_proc_root);
+	}
+
+	return;
+}
+
+
+module_init(bn_osl_init);
+module_exit(bn_osl_cleanup);