ACPI: move wmi, asus_acpi, toshiba_acpi to drivers/platform/x86

These are platform specific drivers that happen to use ACPI,
while drivers/acpi/ is for code that implements ACPI itself.

Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 0 insertions, 863 deletions

diff --git a/drivers/acpi/toshiba_acpi.c b/drivers/acpi/toshiba_acpi.c
deleted file mode 100644
index 40e60fc2e59..00000000000
--- a/drivers/acpi/toshiba_acpi.c
+++ /dev/null
@@ -1,863 +0,0 @@
-/*
- *  toshiba_acpi.c - Toshiba Laptop ACPI Extras
- *
- *
- *  Copyright (C) 2002-2004 John Belmonte
- *  Copyright (C) 2008 Philip Langdale
- *
- *  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
- *
- *
- *  The devolpment page for this driver is located at
- *  http://memebeam.org/toys/ToshibaAcpiDriver.
- *
- *  Credits:
- *	Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
- *		engineering the Windows drivers
- *	Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
- *	Rob Miller - TV out and hotkeys help
- *
- *
- *  TODO
- *
- */
-
-#define TOSHIBA_ACPI_VERSION	"0.19"
-#define PROC_INTERFACE_VERSION	1
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/proc_fs.h>
-#include <linux/backlight.h>
-#include <linux/platform_device.h>
-#include <linux/rfkill.h>
-#include <linux/input-polldev.h>
-
-#include <asm/uaccess.h>
-
-#include <acpi/acpi_drivers.h>
-
-MODULE_AUTHOR("John Belmonte");
-MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
-MODULE_LICENSE("GPL");
-
-#define MY_LOGPREFIX "toshiba_acpi: "
-#define MY_ERR KERN_ERR MY_LOGPREFIX
-#define MY_NOTICE KERN_NOTICE MY_LOGPREFIX
-#define MY_INFO KERN_INFO MY_LOGPREFIX
-
-/* Toshiba ACPI method paths */
-#define METHOD_LCD_BRIGHTNESS	"\\_SB_.PCI0.VGA_.LCD_._BCM"
-#define METHOD_HCI_1		"\\_SB_.VALD.GHCI"
-#define METHOD_HCI_2		"\\_SB_.VALZ.GHCI"
-#define METHOD_VIDEO_OUT	"\\_SB_.VALX.DSSX"
-
-/* Toshiba HCI interface definitions
- *
- * HCI is Toshiba's "Hardware Control Interface" which is supposed to
- * be uniform across all their models.  Ideally we would just call
- * dedicated ACPI methods instead of using this primitive interface.
- * However the ACPI methods seem to be incomplete in some areas (for
- * example they allow setting, but not reading, the LCD brightness value),
- * so this is still useful.
- */
-
-#define HCI_WORDS			6
-
-/* operations */
-#define HCI_SET				0xff00
-#define HCI_GET				0xfe00
-
-/* return codes */
-#define HCI_SUCCESS			0x0000
-#define HCI_FAILURE			0x1000
-#define HCI_NOT_SUPPORTED		0x8000
-#define HCI_EMPTY			0x8c00
-
-/* registers */
-#define HCI_FAN				0x0004
-#define HCI_SYSTEM_EVENT		0x0016
-#define HCI_VIDEO_OUT			0x001c
-#define HCI_HOTKEY_EVENT		0x001e
-#define HCI_LCD_BRIGHTNESS		0x002a
-#define HCI_WIRELESS			0x0056
-
-/* field definitions */
-#define HCI_LCD_BRIGHTNESS_BITS		3
-#define HCI_LCD_BRIGHTNESS_SHIFT	(16-HCI_LCD_BRIGHTNESS_BITS)
-#define HCI_LCD_BRIGHTNESS_LEVELS	(1 << HCI_LCD_BRIGHTNESS_BITS)
-#define HCI_VIDEO_OUT_LCD		0x1
-#define HCI_VIDEO_OUT_CRT		0x2
-#define HCI_VIDEO_OUT_TV		0x4
-#define HCI_WIRELESS_KILL_SWITCH	0x01
-#define HCI_WIRELESS_BT_PRESENT		0x0f
-#define HCI_WIRELESS_BT_ATTACH		0x40
-#define HCI_WIRELESS_BT_POWER		0x80
-
-static const struct acpi_device_id toshiba_device_ids[] = {
-	{"TOS6200", 0},
-	{"TOS6208", 0},
-	{"TOS1900", 0},
-	{"", 0},
-};
-MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
-
-/* utility
- */
-
-static __inline__ void _set_bit(u32 * word, u32 mask, int value)
-{
-	*word = (*word & ~mask) | (mask * value);
-}
-
-/* acpi interface wrappers
- */
-
-static int is_valid_acpi_path(const char *methodName)
-{
-	acpi_handle handle;
-	acpi_status status;
-
-	status = acpi_get_handle(NULL, (char *)methodName, &handle);
-	return !ACPI_FAILURE(status);
-}
-
-static int write_acpi_int(const char *methodName, int val)
-{
-	struct acpi_object_list params;
-	union acpi_object in_objs[1];
-	acpi_status status;
-
-	params.count = ARRAY_SIZE(in_objs);
-	params.pointer = in_objs;
-	in_objs[0].type = ACPI_TYPE_INTEGER;
-	in_objs[0].integer.value = val;
-
-	status = acpi_evaluate_object(NULL, (char *)methodName, &params, NULL);
-	return (status == AE_OK);
-}
-
-#if 0
-static int read_acpi_int(const char *methodName, int *pVal)
-{
-	struct acpi_buffer results;
-	union acpi_object out_objs[1];
-	acpi_status status;
-
-	results.length = sizeof(out_objs);
-	results.pointer = out_objs;
-
-	status = acpi_evaluate_object(0, (char *)methodName, 0, &results);
-	*pVal = out_objs[0].integer.value;
-
-	return (status == AE_OK) && (out_objs[0].type == ACPI_TYPE_INTEGER);
-}
-#endif
-
-static const char *method_hci /*= 0*/ ;
-
-/* Perform a raw HCI call.  Here we don't care about input or output buffer
- * format.
- */
-static acpi_status hci_raw(const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
-{
-	struct acpi_object_list params;
-	union acpi_object in_objs[HCI_WORDS];
-	struct acpi_buffer results;
-	union acpi_object out_objs[HCI_WORDS + 1];
-	acpi_status status;
-	int i;
-
-	params.count = HCI_WORDS;
-	params.pointer = in_objs;
-	for (i = 0; i < HCI_WORDS; ++i) {
-		in_objs[i].type = ACPI_TYPE_INTEGER;
-		in_objs[i].integer.value = in[i];
-	}
-
-	results.length = sizeof(out_objs);
-	results.pointer = out_objs;
-
-	status = acpi_evaluate_object(NULL, (char *)method_hci, &params,
-				      &results);
-	if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) {
-		for (i = 0; i < out_objs->package.count; ++i) {
-			out[i] = out_objs->package.elements[i].integer.value;
-		}
-	}
-
-	return status;
-}
-
-/* common hci tasks (get or set one or two value)
- *
- * In addition to the ACPI status, the HCI system returns a result which
- * may be useful (such as "not supported").
- */
-
-static acpi_status hci_write1(u32 reg, u32 in1, u32 * result)
-{
-	u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
-	u32 out[HCI_WORDS];
-	acpi_status status = hci_raw(in, out);
-	*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
-	return status;
-}
-
-static acpi_status hci_read1(u32 reg, u32 * out1, u32 * result)
-{
-	u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
-	u32 out[HCI_WORDS];
-	acpi_status status = hci_raw(in, out);
-	*out1 = out[2];
-	*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
-	return status;
-}
-
-static acpi_status hci_write2(u32 reg, u32 in1, u32 in2, u32 *result)
-{
-	u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
-	u32 out[HCI_WORDS];
-	acpi_status status = hci_raw(in, out);
-	*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
-	return status;
-}
-
-static acpi_status hci_read2(u32 reg, u32 *out1, u32 *out2, u32 *result)
-{
-	u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
-	u32 out[HCI_WORDS];
-	acpi_status status = hci_raw(in, out);
-	*out1 = out[2];
-	*out2 = out[3];
-	*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
-	return status;
-}
-
-struct toshiba_acpi_dev {
-	struct platform_device *p_dev;
-	struct rfkill *rfk_dev;
-	struct input_polled_dev *poll_dev;
-
-	const char *bt_name;
-	const char *rfk_name;
-
-	bool last_rfk_state;
-
-	struct mutex mutex;
-};
-
-static struct toshiba_acpi_dev toshiba_acpi = {
-	.bt_name = "Toshiba Bluetooth",
-	.rfk_name = "Toshiba RFKill Switch",
-	.last_rfk_state = false,
-};
-
-/* Bluetooth rfkill handlers */
-
-static u32 hci_get_bt_present(bool *present)
-{
-	u32 hci_result;
-	u32 value, value2;
-
-	value = 0;
-	value2 = 0;
-	hci_read2(HCI_WIRELESS, &value, &value2, &hci_result);
-	if (hci_result == HCI_SUCCESS)
-		*present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false;
-
-	return hci_result;
-}
-
-static u32 hci_get_bt_on(bool *on)
-{
-	u32 hci_result;
-	u32 value, value2;
-
-	value = 0;
-	value2 = 0x0001;
-	hci_read2(HCI_WIRELESS, &value, &value2, &hci_result);
-	if (hci_result == HCI_SUCCESS)
-		*on = (value & HCI_WIRELESS_BT_POWER) &&
-		      (value & HCI_WIRELESS_BT_ATTACH);
-
-	return hci_result;
-}
-
-static u32 hci_get_radio_state(bool *radio_state)
-{
-	u32 hci_result;
-	u32 value, value2;
-
-	value = 0;
-	value2 = 0x0001;
-	hci_read2(HCI_WIRELESS, &value, &value2, &hci_result);
-
-	*radio_state = value & HCI_WIRELESS_KILL_SWITCH;
-	return hci_result;
-}
-
-static int bt_rfkill_toggle_radio(void *data, enum rfkill_state state)
-{
-	u32 result1, result2;
-	u32 value;
-	bool radio_state;
-	struct toshiba_acpi_dev *dev = data;
-
-	value = (state == RFKILL_STATE_UNBLOCKED);
-
-	if (hci_get_radio_state(&radio_state) != HCI_SUCCESS)
-		return -EFAULT;
-
-	switch (state) {
-	case RFKILL_STATE_UNBLOCKED:
-		if (!radio_state)
-			return -EPERM;
-		break;
-	case RFKILL_STATE_SOFT_BLOCKED:
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	mutex_lock(&dev->mutex);
-	hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1);
-	hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2);
-	mutex_unlock(&dev->mutex);
-
-	if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS)
-		return -EFAULT;
-
-	return 0;
-}
-
-static void bt_poll_rfkill(struct input_polled_dev *poll_dev)
-{
-	bool state_changed;
-	bool new_rfk_state;
-	bool value;
-	u32 hci_result;
-	struct toshiba_acpi_dev *dev = poll_dev->private;
-
-	hci_result = hci_get_radio_state(&value);
-	if (hci_result != HCI_SUCCESS)
-		return; /* Can't do anything useful */
-
-	new_rfk_state = value;
-
-	mutex_lock(&dev->mutex);
-	state_changed = new_rfk_state != dev->last_rfk_state;
-	dev->last_rfk_state = new_rfk_state;
-	mutex_unlock(&dev->mutex);
-
-	if (unlikely(state_changed)) {
-		rfkill_force_state(dev->rfk_dev,
-				   new_rfk_state ?
-				   RFKILL_STATE_SOFT_BLOCKED :
-				   RFKILL_STATE_HARD_BLOCKED);
-		input_report_switch(poll_dev->input, SW_RFKILL_ALL,
-				    new_rfk_state);
-		input_sync(poll_dev->input);
-	}
-}
-
-static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
-static struct backlight_device *toshiba_backlight_device;
-static int force_fan;
-static int last_key_event;
-static int key_event_valid;
-
-typedef struct _ProcItem {
-	const char *name;
-	char *(*read_func) (char *);
-	unsigned long (*write_func) (const char *, unsigned long);
-} ProcItem;
-
-/* proc file handlers
- */
-
-static int
-dispatch_read(char *page, char **start, off_t off, int count, int *eof,
-	      ProcItem * item)
-{
-	char *p = page;
-	int len;
-
-	if (off == 0)
-		p = item->read_func(p);
-
-	/* ISSUE: I don't understand this code */
-	len = (p - page);
-	if (len <= off + count)
-		*eof = 1;
-	*start = page + off;
-	len -= off;
-	if (len > count)
-		len = count;
-	if (len < 0)
-		len = 0;
-	return len;
-}
-
-static int
-dispatch_write(struct file *file, const char __user * buffer,
-	       unsigned long count, ProcItem * item)
-{
-	int result;
-	char *tmp_buffer;
-
-	/* Arg buffer points to userspace memory, which can't be accessed
-	 * directly.  Since we're making a copy, zero-terminate the
-	 * destination so that sscanf can be used on it safely.
-	 */
-	tmp_buffer = kmalloc(count + 1, GFP_KERNEL);
-	if (!tmp_buffer)
-		return -ENOMEM;
-
-	if (copy_from_user(tmp_buffer, buffer, count)) {
-		result = -EFAULT;
-	} else {
-		tmp_buffer[count] = 0;
-		result = item->write_func(tmp_buffer, count);
-	}
-	kfree(tmp_buffer);
-	return result;
-}
-
-static int get_lcd(struct backlight_device *bd)
-{
-	u32 hci_result;
-	u32 value;
-
-	hci_read1(HCI_LCD_BRIGHTNESS, &value, &hci_result);
-	if (hci_result == HCI_SUCCESS) {
-		return (value >> HCI_LCD_BRIGHTNESS_SHIFT);
-	} else
-		return -EFAULT;
-}
-
-static char *read_lcd(char *p)
-{
-	int value = get_lcd(NULL);
-
-	if (value >= 0) {
-		p += sprintf(p, "brightness:              %d\n", value);
-		p += sprintf(p, "brightness_levels:       %d\n",
-			     HCI_LCD_BRIGHTNESS_LEVELS);
-	} else {
-		printk(MY_ERR "Error reading LCD brightness\n");
-	}
-
-	return p;
-}
-
-static int set_lcd(int value)
-{
-	u32 hci_result;
-
-	value = value << HCI_LCD_BRIGHTNESS_SHIFT;
-	hci_write1(HCI_LCD_BRIGHTNESS, value, &hci_result);
-	if (hci_result != HCI_SUCCESS)
-		return -EFAULT;
-
-	return 0;
-}
-
-static int set_lcd_status(struct backlight_device *bd)
-{
-	return set_lcd(bd->props.brightness);
-}
-
-static unsigned long write_lcd(const char *buffer, unsigned long count)
-{
-	int value;
-	int ret;
-
-	if (sscanf(buffer, " brightness : %i", &value) == 1 &&
-	    value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS) {
-		ret = set_lcd(value);
-		if (ret == 0)
-			ret = count;
-	} else {
-		ret = -EINVAL;
-	}
-	return ret;
-}
-
-static char *read_video(char *p)
-{
-	u32 hci_result;
-	u32 value;
-
-	hci_read1(HCI_VIDEO_OUT, &value, &hci_result);
-	if (hci_result == HCI_SUCCESS) {
-		int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
-		int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
-		int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
-		p += sprintf(p, "lcd_out:                 %d\n", is_lcd);
-		p += sprintf(p, "crt_out:                 %d\n", is_crt);
-		p += sprintf(p, "tv_out:                  %d\n", is_tv);
-	} else {
-		printk(MY_ERR "Error reading video out status\n");
-	}
-
-	return p;
-}
-
-static unsigned long write_video(const char *buffer, unsigned long count)
-{
-	int value;
-	int remain = count;
-	int lcd_out = -1;
-	int crt_out = -1;
-	int tv_out = -1;
-	u32 hci_result;
-	u32 video_out;
-
-	/* scan expression.  Multiple expressions may be delimited with ;
-	 *
-	 *  NOTE: to keep scanning simple, invalid fields are ignored
-	 */
-	while (remain) {
-		if (sscanf(buffer, " lcd_out : %i", &value) == 1)
-			lcd_out = value & 1;
-		else if (sscanf(buffer, " crt_out : %i", &value) == 1)
-			crt_out = value & 1;
-		else if (sscanf(buffer, " tv_out : %i", &value) == 1)
-			tv_out = value & 1;
-		/* advance to one character past the next ; */
-		do {
-			++buffer;
-			--remain;
-		}
-		while (remain && *(buffer - 1) != ';');
-	}
-
-	hci_read1(HCI_VIDEO_OUT, &video_out, &hci_result);
-	if (hci_result == HCI_SUCCESS) {
-		unsigned int new_video_out = video_out;
-		if (lcd_out != -1)
-			_set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
-		if (crt_out != -1)
-			_set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
-		if (tv_out != -1)
-			_set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
-		/* To avoid unnecessary video disruption, only write the new
-		 * video setting if something changed. */
-		if (new_video_out != video_out)
-			write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
-	} else {
-		return -EFAULT;
-	}
-
-	return count;
-}
-
-static char *read_fan(char *p)
-{
-	u32 hci_result;
-	u32 value;
-
-	hci_read1(HCI_FAN, &value, &hci_result);
-	if (hci_result == HCI_SUCCESS) {
-		p += sprintf(p, "running:                 %d\n", (value > 0));
-		p += sprintf(p, "force_on:                %d\n", force_fan);
-	} else {
-		printk(MY_ERR "Error reading fan status\n");
-	}
-
-	return p;
-}
-
-static unsigned long write_fan(const char *buffer, unsigned long count)
-{
-	int value;
-	u32 hci_result;
-
-	if (sscanf(buffer, " force_on : %i", &value) == 1 &&
-	    value >= 0 && value <= 1) {
-		hci_write1(HCI_FAN, value, &hci_result);
-		if (hci_result != HCI_SUCCESS)
-			return -EFAULT;
-		else
-			force_fan = value;
-	} else {
-		return -EINVAL;
-	}
-
-	return count;
-}
-
-static char *read_keys(char *p)
-{
-	u32 hci_result;
-	u32 value;
-
-	if (!key_event_valid) {
-		hci_read1(HCI_SYSTEM_EVENT, &value, &hci_result);
-		if (hci_result == HCI_SUCCESS) {
-			key_event_valid = 1;
-			last_key_event = value;
-		} else if (hci_result == HCI_EMPTY) {
-			/* better luck next time */
-		} else if (hci_result == HCI_NOT_SUPPORTED) {
-			/* This is a workaround for an unresolved issue on
-			 * some machines where system events sporadically
-			 * become disabled. */
-			hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result);
-			printk(MY_NOTICE "Re-enabled hotkeys\n");
-		} else {
-			printk(MY_ERR "Error reading hotkey status\n");
-			goto end;
-		}
-	}
-
-	p += sprintf(p, "hotkey_ready:            %d\n", key_event_valid);
-	p += sprintf(p, "hotkey:                  0x%04x\n", last_key_event);
-
-      end:
-	return p;
-}
-
-static unsigned long write_keys(const char *buffer, unsigned long count)
-{
-	int value;
-
-	if (sscanf(buffer, " hotkey_ready : %i", &value) == 1 && value == 0) {
-		key_event_valid = 0;
-	} else {
-		return -EINVAL;
-	}
-
-	return count;
-}
-
-static char *read_version(char *p)
-{
-	p += sprintf(p, "driver:                  %s\n", TOSHIBA_ACPI_VERSION);
-	p += sprintf(p, "proc_interface:          %d\n",
-		     PROC_INTERFACE_VERSION);
-	return p;
-}
-
-/* proc and module init
- */
-
-#define PROC_TOSHIBA		"toshiba"
-
-static ProcItem proc_items[] = {
-	{"lcd", read_lcd, write_lcd},
-	{"video", read_video, write_video},
-	{"fan", read_fan, write_fan},
-	{"keys", read_keys, write_keys},
-	{"version", read_version, NULL},
-	{NULL}
-};
-
-static acpi_status __init add_device(void)
-{
-	struct proc_dir_entry *proc;
-	ProcItem *item;
-
-	for (item = proc_items; item->name; ++item) {
-		proc = create_proc_read_entry(item->name,
-					      S_IFREG | S_IRUGO | S_IWUSR,
-					      toshiba_proc_dir,
-					      (read_proc_t *) dispatch_read,
-					      item);
-		if (proc)
-			proc->owner = THIS_MODULE;
-		if (proc && item->write_func)
-			proc->write_proc = (write_proc_t *) dispatch_write;
-	}
-
-	return AE_OK;
-}
-
-static acpi_status remove_device(void)
-{
-	ProcItem *item;
-
-	for (item = proc_items; item->name; ++item)
-		remove_proc_entry(item->name, toshiba_proc_dir);
-	return AE_OK;
-}
-
-static struct backlight_ops toshiba_backlight_data = {
-        .get_brightness = get_lcd,
-        .update_status  = set_lcd_status,
-};
-
-static void toshiba_acpi_exit(void)
-{
-	if (toshiba_acpi.poll_dev) {
-		input_unregister_polled_device(toshiba_acpi.poll_dev);
-		input_free_polled_device(toshiba_acpi.poll_dev);
-	}
-
-	if (toshiba_acpi.rfk_dev)
-		rfkill_unregister(toshiba_acpi.rfk_dev);
-
-	if (toshiba_backlight_device)
-		backlight_device_unregister(toshiba_backlight_device);
-
-	remove_device();
-
-	if (toshiba_proc_dir)
-		remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
-
-	platform_device_unregister(toshiba_acpi.p_dev);
-
-	return;
-}
-
-static int __init toshiba_acpi_init(void)
-{
-	acpi_status status = AE_OK;
-	u32 hci_result;
-	bool bt_present;
-	bool bt_on;
-	bool radio_on;
-	int ret = 0;
-
-	if (acpi_disabled)
-		return -ENODEV;
-
-	/* simple device detection: look for HCI method */
-	if (is_valid_acpi_path(METHOD_HCI_1))
-		method_hci = METHOD_HCI_1;
-	else if (is_valid_acpi_path(METHOD_HCI_2))
-		method_hci = METHOD_HCI_2;
-	else
-		return -ENODEV;
-
-	printk(MY_INFO "Toshiba Laptop ACPI Extras version %s\n",
-	       TOSHIBA_ACPI_VERSION);
-	printk(MY_INFO "    HCI method: %s\n", method_hci);
-
-	mutex_init(&toshiba_acpi.mutex);
-
-	toshiba_acpi.p_dev = platform_device_register_simple("toshiba_acpi",
-							      -1, NULL, 0);
-	if (IS_ERR(toshiba_acpi.p_dev)) {
-		ret = PTR_ERR(toshiba_acpi.p_dev);
-		printk(MY_ERR "unable to register platform device\n");
-		toshiba_acpi.p_dev = NULL;
-		toshiba_acpi_exit();
-		return ret;
-	}
-
-	force_fan = 0;
-	key_event_valid = 0;
-
-	/* enable event fifo */
-	hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result);
-
-	toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
-	if (!toshiba_proc_dir) {
-		toshiba_acpi_exit();
-		return -ENODEV;
-	} else {
-		toshiba_proc_dir->owner = THIS_MODULE;
-		status = add_device();
-		if (ACPI_FAILURE(status)) {
-			toshiba_acpi_exit();
-			return -ENODEV;
-		}
-	}
-
-	toshiba_backlight_device = backlight_device_register("toshiba",
-						&toshiba_acpi.p_dev->dev,
-						NULL,
-						&toshiba_backlight_data);
-        if (IS_ERR(toshiba_backlight_device)) {
-		ret = PTR_ERR(toshiba_backlight_device);
-
-		printk(KERN_ERR "Could not register toshiba backlight device\n");
-		toshiba_backlight_device = NULL;
-		toshiba_acpi_exit();
-		return ret;
-	}
-        toshiba_backlight_device->props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
-
-	/* Register rfkill switch for Bluetooth */
-	if (hci_get_bt_present(&bt_present) == HCI_SUCCESS && bt_present) {
-		toshiba_acpi.rfk_dev = rfkill_allocate(&toshiba_acpi.p_dev->dev,
-							RFKILL_TYPE_BLUETOOTH);
-		if (!toshiba_acpi.rfk_dev) {
-			printk(MY_ERR "unable to allocate rfkill device\n");
-			toshiba_acpi_exit();
-			return -ENOMEM;
-		}
-
-		toshiba_acpi.rfk_dev->name = toshiba_acpi.bt_name;
-		toshiba_acpi.rfk_dev->toggle_radio = bt_rfkill_toggle_radio;
-		toshiba_acpi.rfk_dev->user_claim_unsupported = 1;
-		toshiba_acpi.rfk_dev->data = &toshiba_acpi;
-
-		if (hci_get_bt_on(&bt_on) == HCI_SUCCESS && bt_on) {
-			toshiba_acpi.rfk_dev->state = RFKILL_STATE_UNBLOCKED;
-		} else if (hci_get_radio_state(&radio_on) == HCI_SUCCESS &&
-			   radio_on) {
-			toshiba_acpi.rfk_dev->state = RFKILL_STATE_SOFT_BLOCKED;
-		} else {
-			toshiba_acpi.rfk_dev->state = RFKILL_STATE_HARD_BLOCKED;
-		}
-
-		ret = rfkill_register(toshiba_acpi.rfk_dev);
-		if (ret) {
-			printk(MY_ERR "unable to register rfkill device\n");
-			toshiba_acpi_exit();
-			return -ENOMEM;
-		}
-
-		/* Register input device for kill switch */
-		toshiba_acpi.poll_dev = input_allocate_polled_device();
-		if (!toshiba_acpi.poll_dev) {
-			printk(MY_ERR
-			       "unable to allocate kill-switch input device\n");
-			toshiba_acpi_exit();
-			return -ENOMEM;
-		}
-		toshiba_acpi.poll_dev->private = &toshiba_acpi;
-		toshiba_acpi.poll_dev->poll = bt_poll_rfkill;
-		toshiba_acpi.poll_dev->poll_interval = 1000; /* msecs */
-
-		toshiba_acpi.poll_dev->input->name = toshiba_acpi.rfk_name;
-		toshiba_acpi.poll_dev->input->id.bustype = BUS_HOST;
-		/* Toshiba USB ID */
-		toshiba_acpi.poll_dev->input->id.vendor = 0x0930;
-		set_bit(EV_SW, toshiba_acpi.poll_dev->input->evbit);
-		set_bit(SW_RFKILL_ALL, toshiba_acpi.poll_dev->input->swbit);
-		input_report_switch(toshiba_acpi.poll_dev->input,
-				    SW_RFKILL_ALL, TRUE);
-		input_sync(toshiba_acpi.poll_dev->input);
-
-		ret = input_register_polled_device(toshiba_acpi.poll_dev);
-		if (ret) {
-			printk(MY_ERR
-			       "unable to register kill-switch input device\n");
-			toshiba_acpi_exit();
-			return ret;
-		}
-	}
-
-	return 0;
-}
-
-module_init(toshiba_acpi_init);
-module_exit(toshiba_acpi_exit);