Merge branch 'linus' into x86/xsave

9 files changed, 282 insertions, 12 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 735f5ea17473..12cf5d491f0d 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -260,6 +260,9 @@ config ACPI_ASUS
 config ACPI_TOSHIBA
 	tristate "Toshiba Laptop Extras"
 	depends on X86
+	select INPUT_POLLDEV
+	select NET
+	select RFKILL
 	select BACKLIGHT_CLASS_DEVICE
 	---help---
 	  This driver adds support for access to certain system settings
diff --git a/drivers/acpi/dispatcher/dsobject.c b/drivers/acpi/dispatcher/dsobject.c
index 1022e38994c2..0f2805899210 100644
--- a/drivers/acpi/dispatcher/dsobject.c
+++ b/drivers/acpi/dispatcher/dsobject.c
@@ -496,7 +496,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
 			arg = arg->common.next;
 		}
 
-		ACPI_ERROR((AE_INFO,
+		ACPI_WARNING((AE_INFO,
 			    "Package List length (%X) larger than NumElements count (%X), truncated\n",
 			    i, element_count));
 	} else if (i < element_count) {
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 084109507c9f..8dd3336efd7e 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -165,8 +165,11 @@ static int acpi_bind_one(struct device *dev, acpi_handle handle)
 				"firmware_node");
 		ret = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
 				"physical_node");
-		if (acpi_dev->wakeup.flags.valid)
+		if (acpi_dev->wakeup.flags.valid) {
 			device_set_wakeup_capable(dev, true);
+			device_set_wakeup_enable(dev,
+						acpi_dev->wakeup.state.enabled);
+		}
 	}
 
 	return 0;
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index d3f0a62efcc1..ee68ac54c0d4 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -138,7 +138,7 @@ static struct dmi_system_id __cpuinitdata processor_idle_dmi_table[] = {
 	{
 	set_no_mwait, "Extensa 5220", {
 	DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
-	DMI_MATCH(DMI_SYS_VENDOR, "ACER"),
+	DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 	DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
 	DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL},
 	{},
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 80e32093e977..80c251ec6d2a 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -71,7 +71,7 @@ static DEFINE_MUTEX(performance_mutex);
  *  1 -> ignore _PPC totally -> forced by user through boot param
  */
 static int ignore_ppc = -1;
-module_param(ignore_ppc, uint, 0644);
+module_param(ignore_ppc, int, 0644);
 MODULE_PARM_DESC(ignore_ppc, "If the frequency of your machine gets wrongly" \
 		 "limited by BIOS, this should help");
 
diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
index bcf2c70fca87..a4e3767b8c64 100644
--- a/drivers/acpi/sbshc.c
+++ b/drivers/acpi/sbshc.c
@@ -107,6 +107,13 @@ static int wait_transaction_complete(struct acpi_smb_hc *hc, int timeout)
 	if (wait_event_timeout(hc->wait, smb_check_done(hc),
 			       msecs_to_jiffies(timeout)))
 		return 0;
+	/*
+	 * After the timeout happens, OS will try to check the status of SMbus.
+	 * If the status is what OS expected, it will be regarded as the bogus
+	 * timeout.
+	 */
+	if (smb_check_done(hc))
+		return 0;
 	else
 		return -ETIME;
 }
diff --git a/drivers/acpi/sleep/proc.c b/drivers/acpi/sleep/proc.c
index 4ebbba2b6b19..bf5b04de02d1 100644
--- a/drivers/acpi/sleep/proc.c
+++ b/drivers/acpi/sleep/proc.c
@@ -377,6 +377,14 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
 	return 0;
 }
 
+static void physical_device_enable_wakeup(struct acpi_device *adev)
+{
+	struct device *dev = acpi_get_physical_device(adev->handle);
+
+	if (dev && device_can_wakeup(dev))
+		device_set_wakeup_enable(dev, adev->wakeup.state.enabled);
+}
+
 static ssize_t
 acpi_system_write_wakeup_device(struct file *file,
 				const char __user * buffer,
@@ -411,6 +419,7 @@ acpi_system_write_wakeup_device(struct file *file,
 		}
 	}
 	if (found_dev) {
+		physical_device_enable_wakeup(found_dev);
 		list_for_each_safe(node, next, &acpi_wakeup_device_list) {
 			struct acpi_device *dev = container_of(node,
 							       struct
@@ -428,6 +437,7 @@ acpi_system_write_wakeup_device(struct file *file,
 				       dev->pnp.bus_id, found_dev->pnp.bus_id);
 				dev->wakeup.state.enabled =
 				    found_dev->wakeup.state.enabled;
+				physical_device_enable_wakeup(dev);
 			}
 		}
 	}
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index c3419182c9a7..775c97a282bd 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -300,6 +300,8 @@ int __init acpi_table_init(void)
 
 static int __init acpi_parse_apic_instance(char *str)
 {
+	if (!str)
+		return -EINVAL;
 
 	acpi_apic_instance = simple_strtoul(str, NULL, 0);
 
diff --git a/drivers/acpi/toshiba_acpi.c b/drivers/acpi/toshiba_acpi.c
index 0a43c8e0eff3..8a649f40d162 100644
--- a/drivers/acpi/toshiba_acpi.c
+++ b/drivers/acpi/toshiba_acpi.c
@@ -3,6 +3,7 @@
  *
  *
  *  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
@@ -33,7 +34,7 @@
  *
  */
 
-#define TOSHIBA_ACPI_VERSION	"0.18"
+#define TOSHIBA_ACPI_VERSION	"0.19"
 #define PROC_INTERFACE_VERSION	1
 
 #include <linux/kernel.h>
@@ -42,6 +43,9 @@
 #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>
 
@@ -90,6 +94,7 @@ MODULE_LICENSE("GPL");
 #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
@@ -98,9 +103,14 @@ MODULE_LICENSE("GPL");
 #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},
 };
@@ -193,7 +203,7 @@ static acpi_status hci_raw(const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
 	return status;
 }
 
-/* common hci tasks (get or set one value)
+/* 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").
@@ -218,6 +228,152 @@ static acpi_status hci_read1(u32 reg, u32 * out1, u32 * result)
 	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);
+	}
+}
+
 static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
 static struct backlight_device *toshiba_backlight_device;
 static int force_fan;
@@ -547,6 +703,14 @@ static struct backlight_ops toshiba_backlight_data = {
 
 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);
 
@@ -555,6 +719,8 @@ static void toshiba_acpi_exit(void)
 	if (toshiba_proc_dir)
 		remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
 
+	platform_device_unregister(toshiba_acpi.p_dev);
+
 	return;
 }
 
@@ -562,6 +728,10 @@ 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;
@@ -578,6 +748,18 @@ static int __init toshiba_acpi_init(void)
 	       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;
 
@@ -586,19 +768,23 @@ static int __init toshiba_acpi_init(void)
 
 	toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
 	if (!toshiba_proc_dir) {
-		status = AE_ERROR;
+		toshiba_acpi_exit();
+		return -ENODEV;
 	} else {
 		toshiba_proc_dir->owner = THIS_MODULE;
 		status = add_device();
-		if (ACPI_FAILURE(status))
-			remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
+		if (ACPI_FAILURE(status)) {
+			toshiba_acpi_exit();
+			return -ENODEV;
+		}
 	}
 
-	toshiba_backlight_device = backlight_device_register("toshiba",NULL,
+	toshiba_backlight_device = backlight_device_register("toshiba",
+						&toshiba_acpi.p_dev->dev,
 						NULL,
 						&toshiba_backlight_data);
         if (IS_ERR(toshiba_backlight_device)) {
-		int ret = PTR_ERR(toshiba_backlight_device);
+		ret = PTR_ERR(toshiba_backlight_device);
 
 		printk(KERN_ERR "Could not register toshiba backlight device\n");
 		toshiba_backlight_device = NULL;
@@ -607,7 +793,66 @@ static int __init toshiba_acpi_init(void)
 	}
         toshiba_backlight_device->props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
 
-	return (ACPI_SUCCESS(status)) ? 0 : -ENODEV;
+	/* 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_acpi.poll_dev->input->id.vendor = 0x0930; /* Toshiba USB ID */
+	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);
+
+	ret = input_register_polled_device(toshiba_acpi.poll_dev);
+	if (ret) {
+		printk(MY_ERR "unable to register kill-switch input device\n");
+		rfkill_free(toshiba_acpi.rfk_dev);
+		toshiba_acpi.rfk_dev = NULL;
+		toshiba_acpi_exit();
+		return ret;
+	}
+
+	return 0;
 }
 
 module_init(toshiba_acpi_init);