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Message-Id: <1298712045-17671-2-git-send-email-corentincj@iksaif.net>
Date: Sat, 26 Feb 2011 10:20:30 +0100
From: Corentin Chary <corentincj@...aif.net>
To: Matthew Garrett <mjg@...hat.com>
Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>,
Corentin Chary <corentincj@...aif.net>,
linux-kernel@...r.kernel.org (open list),
platform-driver-x86@...r.kernel.org (open list:X86 PLATFORM DRIVERS),
acpi4asus-user@...ts.sourceforge.net (open list:ASUS NOTEBOOKS AN...)
Subject: [PATCH 01/14] asus-wmi: move generic code to asus-wmi
New Asus notebooks are using a WMI device similar to
the one used in Eee PCs. Since we don't want to load
a module named eeepc-laptop on Asus Notebooks, start by
copying all the code to asus-wmi.c.
Signed-off-by: Corentin Chary <corentincj@...aif.net>
---
drivers/platform/x86/Makefile | 2 +-
drivers/platform/x86/asus-wmi.c | 1454 ++++++++++++++++++++++++++++++++++++++
drivers/platform/x86/eeepc-wmi.c | 1454 --------------------------------------
3 files changed, 1455 insertions(+), 1455 deletions(-)
create mode 100644 drivers/platform/x86/asus-wmi.c
delete mode 100644 drivers/platform/x86/eeepc-wmi.c
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 951b516..3672b04 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -4,7 +4,7 @@
#
obj-$(CONFIG_ASUS_LAPTOP) += asus-laptop.o
obj-$(CONFIG_EEEPC_LAPTOP) += eeepc-laptop.o
-obj-$(CONFIG_EEEPC_WMI) += eeepc-wmi.o
+obj-$(CONFIG_EEEPC_WMI) += asus-wmi.o eeepc-wmi.o
obj-$(CONFIG_MSI_LAPTOP) += msi-laptop.o
obj-$(CONFIG_ACPI_CMPC) += classmate-laptop.o
obj-$(CONFIG_COMPAL_LAPTOP) += compal-laptop.o
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
new file mode 100644
index 0000000..d399775
--- /dev/null
+++ b/drivers/platform/x86/asus-wmi.c
@@ -0,0 +1,1454 @@
+/*
+ * Eee PC WMI hotkey driver
+ *
+ * Copyright(C) 2010 Intel Corporation.
+ * Copyright(C) 2010 Corentin Chary <corentin.chary@...il.com>
+ *
+ * Portions based on wistron_btns.c:
+ * Copyright (C) 2005 Miloslav Trmac <mitr@...ny.cz>
+ * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@...linux.org>
+ * Copyright (C) 2005 Dmitry Torokhov <dtor@...l.ru>
+ *
+ * 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
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
+#include <linux/fb.h>
+#include <linux/backlight.h>
+#include <linux/leds.h>
+#include <linux/rfkill.h>
+#include <linux/pci.h>
+#include <linux/pci_hotplug.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/platform_device.h>
+#include <linux/dmi.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+
+#define EEEPC_WMI_FILE "eeepc-wmi"
+
+MODULE_AUTHOR("Yong Wang <yong.y.wang@...el.com>");
+MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver");
+MODULE_LICENSE("GPL");
+
+#define EEEPC_ACPI_HID "ASUS010" /* old _HID used in eeepc-laptop */
+
+#define EEEPC_WMI_EVENT_GUID "ABBC0F72-8EA1-11D1-00A0-C90629100000"
+#define EEEPC_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
+
+MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID);
+MODULE_ALIAS("wmi:"EEEPC_WMI_MGMT_GUID);
+
+#define NOTIFY_BRNUP_MIN 0x11
+#define NOTIFY_BRNUP_MAX 0x1f
+#define NOTIFY_BRNDOWN_MIN 0x20
+#define NOTIFY_BRNDOWN_MAX 0x2e
+
+/* WMI Methods */
+#define EEEPC_WMI_METHODID_DSTS 0x53544344
+#define EEEPC_WMI_METHODID_DEVS 0x53564544
+#define EEEPC_WMI_METHODID_CFVS 0x53564643
+
+/* Wireless */
+#define EEEPC_WMI_DEVID_WLAN 0x00010011
+#define EEEPC_WMI_DEVID_BLUETOOTH 0x00010013
+#define EEEPC_WMI_DEVID_WIMAX 0x00010017
+#define EEEPC_WMI_DEVID_WWAN3G 0x00010019
+
+/* Backlight and Brightness */
+#define EEEPC_WMI_DEVID_BACKLIGHT 0x00050011
+#define EEEPC_WMI_DEVID_BRIGHTNESS 0x00050012
+
+/* Misc */
+#define EEEPC_WMI_DEVID_CAMERA 0x00060013
+
+/* Storage */
+#define EEEPC_WMI_DEVID_CARDREADER 0x00080013
+
+/* Input */
+#define EEEPC_WMI_DEVID_TOUCHPAD 0x00100011
+#define EEEPC_WMI_DEVID_TOUCHPAD_LED 0x00100012
+
+/* DSTS masks */
+#define EEEPC_WMI_DSTS_STATUS_BIT 0x00000001
+#define EEEPC_WMI_DSTS_PRESENCE_BIT 0x00010000
+#define EEEPC_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF
+#define EEEPC_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00
+
+static bool hotplug_wireless;
+
+module_param(hotplug_wireless, bool, 0444);
+MODULE_PARM_DESC(hotplug_wireless,
+ "Enable hotplug for wireless device. "
+ "If your laptop needs that, please report to "
+ "acpi4asus-user@...ts.sourceforge.net.");
+
+static const struct key_entry eeepc_wmi_keymap[] = {
+ /* Sleep already handled via generic ACPI code */
+ { KE_IGNORE, NOTIFY_BRNDOWN_MIN, { KEY_BRIGHTNESSDOWN } },
+ { KE_IGNORE, NOTIFY_BRNUP_MIN, { KEY_BRIGHTNESSUP } },
+ { KE_KEY, 0x30, { KEY_VOLUMEUP } },
+ { KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
+ { KE_KEY, 0x32, { KEY_MUTE } },
+ { KE_KEY, 0x5c, { KEY_F15 } }, /* Power Gear key */
+ { KE_KEY, 0x5d, { KEY_WLAN } },
+ { KE_KEY, 0x6b, { KEY_F13 } }, /* Disable Touchpad */
+ { KE_KEY, 0x82, { KEY_CAMERA } },
+ { KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } },
+ { KE_KEY, 0x88, { KEY_WLAN } },
+ { KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
+ { KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */
+ { KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */
+ { KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } },
+ { KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } },
+ { KE_KEY, 0xec, { KEY_CAMERA_UP } },
+ { KE_KEY, 0xed, { KEY_CAMERA_DOWN } },
+ { KE_KEY, 0xee, { KEY_CAMERA_LEFT } },
+ { KE_KEY, 0xef, { KEY_CAMERA_RIGHT } },
+ { KE_END, 0},
+};
+
+struct bios_args {
+ u32 dev_id;
+ u32 ctrl_param;
+};
+
+/*
+ * eeepc-wmi/ - debugfs root directory
+ * dev_id - current dev_id
+ * ctrl_param - current ctrl_param
+ * devs - call DEVS(dev_id, ctrl_param) and print result
+ * dsts - call DSTS(dev_id) and print result
+ */
+struct eeepc_wmi_debug {
+ struct dentry *root;
+ u32 dev_id;
+ u32 ctrl_param;
+};
+
+struct eeepc_wmi {
+ bool hotplug_wireless;
+
+ struct input_dev *inputdev;
+ struct backlight_device *backlight_device;
+ struct platform_device *platform_device;
+
+ struct led_classdev tpd_led;
+ int tpd_led_wk;
+ struct workqueue_struct *led_workqueue;
+ struct work_struct tpd_led_work;
+
+ struct rfkill *wlan_rfkill;
+ struct rfkill *bluetooth_rfkill;
+ struct rfkill *wimax_rfkill;
+ struct rfkill *wwan3g_rfkill;
+
+ struct hotplug_slot *hotplug_slot;
+ struct mutex hotplug_lock;
+ struct mutex wmi_lock;
+ struct workqueue_struct *hotplug_workqueue;
+ struct work_struct hotplug_work;
+
+ struct eeepc_wmi_debug debug;
+};
+
+static int eeepc_wmi_input_init(struct eeepc_wmi *eeepc)
+{
+ int err;
+
+ eeepc->inputdev = input_allocate_device();
+ if (!eeepc->inputdev)
+ return -ENOMEM;
+
+ eeepc->inputdev->name = "Eee PC WMI hotkeys";
+ eeepc->inputdev->phys = EEEPC_WMI_FILE "/input0";
+ eeepc->inputdev->id.bustype = BUS_HOST;
+ eeepc->inputdev->dev.parent = &eeepc->platform_device->dev;
+
+ err = sparse_keymap_setup(eeepc->inputdev, eeepc_wmi_keymap, NULL);
+ if (err)
+ goto err_free_dev;
+
+ err = input_register_device(eeepc->inputdev);
+ if (err)
+ goto err_free_keymap;
+
+ return 0;
+
+err_free_keymap:
+ sparse_keymap_free(eeepc->inputdev);
+err_free_dev:
+ input_free_device(eeepc->inputdev);
+ return err;
+}
+
+static void eeepc_wmi_input_exit(struct eeepc_wmi *eeepc)
+{
+ if (eeepc->inputdev) {
+ sparse_keymap_free(eeepc->inputdev);
+ input_unregister_device(eeepc->inputdev);
+ }
+
+ eeepc->inputdev = NULL;
+}
+
+static acpi_status eeepc_wmi_get_devstate(u32 dev_id, u32 *retval)
+{
+ struct acpi_buffer input = { (acpi_size)sizeof(u32), &dev_id };
+ struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *obj;
+ acpi_status status;
+ u32 tmp;
+
+ status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID,
+ 1, EEEPC_WMI_METHODID_DSTS,
+ &input, &output);
+
+ if (ACPI_FAILURE(status))
+ return status;
+
+ obj = (union acpi_object *)output.pointer;
+ if (obj && obj->type == ACPI_TYPE_INTEGER)
+ tmp = (u32)obj->integer.value;
+ else
+ tmp = 0;
+
+ if (retval)
+ *retval = tmp;
+
+ kfree(obj);
+
+ return status;
+
+}
+
+static acpi_status eeepc_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
+ u32 *retval)
+{
+ struct bios_args args = {
+ .dev_id = dev_id,
+ .ctrl_param = ctrl_param,
+ };
+ struct acpi_buffer input = { (acpi_size)sizeof(args), &args };
+ acpi_status status;
+
+ if (!retval) {
+ status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID, 1,
+ EEEPC_WMI_METHODID_DEVS,
+ &input, NULL);
+ } else {
+ struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *obj;
+ u32 tmp;
+
+ status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID, 1,
+ EEEPC_WMI_METHODID_DEVS,
+ &input, &output);
+
+ if (ACPI_FAILURE(status))
+ return status;
+
+ obj = (union acpi_object *)output.pointer;
+ if (obj && obj->type == ACPI_TYPE_INTEGER)
+ tmp = (u32)obj->integer.value;
+ else
+ tmp = 0;
+
+ *retval = tmp;
+
+ kfree(obj);
+ }
+
+ return status;
+}
+
+/* Helper for special devices with magic return codes */
+static int eeepc_wmi_get_devstate_bits(u32 dev_id, u32 mask)
+{
+ u32 retval = 0;
+ acpi_status status;
+
+ status = eeepc_wmi_get_devstate(dev_id, &retval);
+
+ if (ACPI_FAILURE(status))
+ return -EINVAL;
+
+ if (!(retval & EEEPC_WMI_DSTS_PRESENCE_BIT))
+ return -ENODEV;
+
+ return retval & mask;
+}
+
+static int eeepc_wmi_get_devstate_simple(u32 dev_id)
+{
+ return eeepc_wmi_get_devstate_bits(dev_id, EEEPC_WMI_DSTS_STATUS_BIT);
+}
+
+/*
+ * LEDs
+ */
+/*
+ * These functions actually update the LED's, and are called from a
+ * workqueue. By doing this as separate work rather than when the LED
+ * subsystem asks, we avoid messing with the Eeepc ACPI stuff during a
+ * potentially bad time, such as a timer interrupt.
+ */
+static void tpd_led_update(struct work_struct *work)
+{
+ int ctrl_param;
+ struct eeepc_wmi *eeepc;
+
+ eeepc = container_of(work, struct eeepc_wmi, tpd_led_work);
+
+ ctrl_param = eeepc->tpd_led_wk;
+ eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
+}
+
+static void tpd_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ struct eeepc_wmi *eeepc;
+
+ eeepc = container_of(led_cdev, struct eeepc_wmi, tpd_led);
+
+ eeepc->tpd_led_wk = !!value;
+ queue_work(eeepc->led_workqueue, &eeepc->tpd_led_work);
+}
+
+static int read_tpd_led_state(struct eeepc_wmi *eeepc)
+{
+ return eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_TOUCHPAD_LED);
+}
+
+static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
+{
+ struct eeepc_wmi *eeepc;
+
+ eeepc = container_of(led_cdev, struct eeepc_wmi, tpd_led);
+
+ return read_tpd_led_state(eeepc);
+}
+
+static int eeepc_wmi_led_init(struct eeepc_wmi *eeepc)
+{
+ int rv;
+
+ if (read_tpd_led_state(eeepc) < 0)
+ return 0;
+
+ eeepc->led_workqueue = create_singlethread_workqueue("led_workqueue");
+ if (!eeepc->led_workqueue)
+ return -ENOMEM;
+ INIT_WORK(&eeepc->tpd_led_work, tpd_led_update);
+
+ eeepc->tpd_led.name = "eeepc::touchpad";
+ eeepc->tpd_led.brightness_set = tpd_led_set;
+ eeepc->tpd_led.brightness_get = tpd_led_get;
+ eeepc->tpd_led.max_brightness = 1;
+
+ rv = led_classdev_register(&eeepc->platform_device->dev,
+ &eeepc->tpd_led);
+ if (rv) {
+ destroy_workqueue(eeepc->led_workqueue);
+ return rv;
+ }
+
+ return 0;
+}
+
+static void eeepc_wmi_led_exit(struct eeepc_wmi *eeepc)
+{
+ if (eeepc->tpd_led.dev)
+ led_classdev_unregister(&eeepc->tpd_led);
+ if (eeepc->led_workqueue)
+ destroy_workqueue(eeepc->led_workqueue);
+}
+
+/*
+ * PCI hotplug (for wlan rfkill)
+ */
+static bool eeepc_wlan_rfkill_blocked(struct eeepc_wmi *eeepc)
+{
+ int result = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WLAN);
+
+ if (result < 0)
+ return false;
+ return !result;
+}
+
+static void eeepc_rfkill_hotplug(struct eeepc_wmi *eeepc)
+{
+ struct pci_dev *dev;
+ struct pci_bus *bus;
+ bool blocked;
+ bool absent;
+ u32 l;
+
+ mutex_lock(&eeepc->wmi_lock);
+ blocked = eeepc_wlan_rfkill_blocked(eeepc);
+ mutex_unlock(&eeepc->wmi_lock);
+
+ mutex_lock(&eeepc->hotplug_lock);
+
+ if (eeepc->wlan_rfkill)
+ rfkill_set_sw_state(eeepc->wlan_rfkill, blocked);
+
+ if (eeepc->hotplug_slot) {
+ bus = pci_find_bus(0, 1);
+ if (!bus) {
+ pr_warning("Unable to find PCI bus 1?\n");
+ goto out_unlock;
+ }
+
+ if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
+ pr_err("Unable to read PCI config space?\n");
+ goto out_unlock;
+ }
+ absent = (l == 0xffffffff);
+
+ if (blocked != absent) {
+ pr_warning("BIOS says wireless lan is %s, "
+ "but the pci device is %s\n",
+ blocked ? "blocked" : "unblocked",
+ absent ? "absent" : "present");
+ pr_warning("skipped wireless hotplug as probably "
+ "inappropriate for this model\n");
+ goto out_unlock;
+ }
+
+ if (!blocked) {
+ dev = pci_get_slot(bus, 0);
+ if (dev) {
+ /* Device already present */
+ pci_dev_put(dev);
+ goto out_unlock;
+ }
+ dev = pci_scan_single_device(bus, 0);
+ if (dev) {
+ pci_bus_assign_resources(bus);
+ if (pci_bus_add_device(dev))
+ pr_err("Unable to hotplug wifi\n");
+ }
+ } else {
+ dev = pci_get_slot(bus, 0);
+ if (dev) {
+ pci_remove_bus_device(dev);
+ pci_dev_put(dev);
+ }
+ }
+ }
+
+out_unlock:
+ mutex_unlock(&eeepc->hotplug_lock);
+}
+
+static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data)
+{
+ struct eeepc_wmi *eeepc = data;
+
+ if (event != ACPI_NOTIFY_BUS_CHECK)
+ return;
+
+ /*
+ * We can't call directly eeepc_rfkill_hotplug because most
+ * of the time WMBC is still being executed and not reetrant.
+ * There is currently no way to tell ACPICA that we want this
+ * method to be serialized, we schedule a eeepc_rfkill_hotplug
+ * call later, in a safer context.
+ */
+ queue_work(eeepc->hotplug_workqueue, &eeepc->hotplug_work);
+}
+
+static int eeepc_register_rfkill_notifier(struct eeepc_wmi *eeepc,
+ char *node)
+{
+ acpi_status status;
+ acpi_handle handle;
+
+ status = acpi_get_handle(NULL, node, &handle);
+
+ if (ACPI_SUCCESS(status)) {
+ status = acpi_install_notify_handler(handle,
+ ACPI_SYSTEM_NOTIFY,
+ eeepc_rfkill_notify,
+ eeepc);
+ if (ACPI_FAILURE(status))
+ pr_warning("Failed to register notify on %s\n", node);
+ } else
+ return -ENODEV;
+
+ return 0;
+}
+
+static void eeepc_unregister_rfkill_notifier(struct eeepc_wmi *eeepc,
+ char *node)
+{
+ acpi_status status = AE_OK;
+ acpi_handle handle;
+
+ status = acpi_get_handle(NULL, node, &handle);
+
+ if (ACPI_SUCCESS(status)) {
+ status = acpi_remove_notify_handler(handle,
+ ACPI_SYSTEM_NOTIFY,
+ eeepc_rfkill_notify);
+ if (ACPI_FAILURE(status))
+ pr_err("Error removing rfkill notify handler %s\n",
+ node);
+ }
+}
+
+static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot,
+ u8 *value)
+{
+ int result = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WLAN);
+
+ if (result < 0)
+ return result;
+
+ *value = !!result;
+ return 0;
+}
+
+static void eeepc_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
+{
+ kfree(hotplug_slot->info);
+ kfree(hotplug_slot);
+}
+
+static struct hotplug_slot_ops eeepc_hotplug_slot_ops = {
+ .owner = THIS_MODULE,
+ .get_adapter_status = eeepc_get_adapter_status,
+ .get_power_status = eeepc_get_adapter_status,
+};
+
+static void eeepc_hotplug_work(struct work_struct *work)
+{
+ struct eeepc_wmi *eeepc;
+
+ eeepc = container_of(work, struct eeepc_wmi, hotplug_work);
+ eeepc_rfkill_hotplug(eeepc);
+}
+
+static int eeepc_setup_pci_hotplug(struct eeepc_wmi *eeepc)
+{
+ int ret = -ENOMEM;
+ struct pci_bus *bus = pci_find_bus(0, 1);
+
+ if (!bus) {
+ pr_err("Unable to find wifi PCI bus\n");
+ return -ENODEV;
+ }
+
+ eeepc->hotplug_workqueue =
+ create_singlethread_workqueue("hotplug_workqueue");
+ if (!eeepc->hotplug_workqueue)
+ goto error_workqueue;
+
+ INIT_WORK(&eeepc->hotplug_work, eeepc_hotplug_work);
+
+ eeepc->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
+ if (!eeepc->hotplug_slot)
+ goto error_slot;
+
+ eeepc->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
+ GFP_KERNEL);
+ if (!eeepc->hotplug_slot->info)
+ goto error_info;
+
+ eeepc->hotplug_slot->private = eeepc;
+ eeepc->hotplug_slot->release = &eeepc_cleanup_pci_hotplug;
+ eeepc->hotplug_slot->ops = &eeepc_hotplug_slot_ops;
+ eeepc_get_adapter_status(eeepc->hotplug_slot,
+ &eeepc->hotplug_slot->info->adapter_status);
+
+ ret = pci_hp_register(eeepc->hotplug_slot, bus, 0, "eeepc-wifi");
+ if (ret) {
+ pr_err("Unable to register hotplug slot - %d\n", ret);
+ goto error_register;
+ }
+
+ return 0;
+
+error_register:
+ kfree(eeepc->hotplug_slot->info);
+error_info:
+ kfree(eeepc->hotplug_slot);
+ eeepc->hotplug_slot = NULL;
+error_slot:
+ destroy_workqueue(eeepc->hotplug_workqueue);
+error_workqueue:
+ return ret;
+}
+
+/*
+ * Rfkill devices
+ */
+static int eeepc_rfkill_set(void *data, bool blocked)
+{
+ int dev_id = (unsigned long)data;
+ u32 ctrl_param = !blocked;
+ acpi_status status;
+
+ status = eeepc_wmi_set_devstate(dev_id, ctrl_param, NULL);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ return 0;
+}
+
+static void eeepc_rfkill_query(struct rfkill *rfkill, void *data)
+{
+ int dev_id = (unsigned long)data;
+ int result;
+
+ result = eeepc_wmi_get_devstate_simple(dev_id);
+
+ if (result < 0)
+ return ;
+
+ rfkill_set_sw_state(rfkill, !result);
+}
+
+static int eeepc_rfkill_wlan_set(void *data, bool blocked)
+{
+ struct eeepc_wmi *eeepc = data;
+ int ret;
+
+ /*
+ * This handler is enabled only if hotplug is enabled.
+ * In this case, the eeepc_wmi_set_devstate() will
+ * trigger a wmi notification and we need to wait
+ * this call to finish before being able to call
+ * any wmi method
+ */
+ mutex_lock(&eeepc->wmi_lock);
+ ret = eeepc_rfkill_set((void *)(long)EEEPC_WMI_DEVID_WLAN, blocked);
+ mutex_unlock(&eeepc->wmi_lock);
+ return ret;
+}
+
+static void eeepc_rfkill_wlan_query(struct rfkill *rfkill, void *data)
+{
+ eeepc_rfkill_query(rfkill, (void *)(long)EEEPC_WMI_DEVID_WLAN);
+}
+
+static const struct rfkill_ops eeepc_rfkill_wlan_ops = {
+ .set_block = eeepc_rfkill_wlan_set,
+ .query = eeepc_rfkill_wlan_query,
+};
+
+static const struct rfkill_ops eeepc_rfkill_ops = {
+ .set_block = eeepc_rfkill_set,
+ .query = eeepc_rfkill_query,
+};
+
+static int eeepc_new_rfkill(struct eeepc_wmi *eeepc,
+ struct rfkill **rfkill,
+ const char *name,
+ enum rfkill_type type, int dev_id)
+{
+ int result = eeepc_wmi_get_devstate_simple(dev_id);
+
+ if (result < 0)
+ return result;
+
+ if (dev_id == EEEPC_WMI_DEVID_WLAN && eeepc->hotplug_wireless)
+ *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type,
+ &eeepc_rfkill_wlan_ops, eeepc);
+ else
+ *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type,
+ &eeepc_rfkill_ops, (void *)(long)dev_id);
+
+ if (!*rfkill)
+ return -EINVAL;
+
+ rfkill_init_sw_state(*rfkill, !result);
+ result = rfkill_register(*rfkill);
+ if (result) {
+ rfkill_destroy(*rfkill);
+ *rfkill = NULL;
+ return result;
+ }
+ return 0;
+}
+
+static void eeepc_wmi_rfkill_exit(struct eeepc_wmi *eeepc)
+{
+ eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5");
+ eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6");
+ eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7");
+ if (eeepc->wlan_rfkill) {
+ rfkill_unregister(eeepc->wlan_rfkill);
+ rfkill_destroy(eeepc->wlan_rfkill);
+ eeepc->wlan_rfkill = NULL;
+ }
+ /*
+ * Refresh pci hotplug in case the rfkill state was changed after
+ * eeepc_unregister_rfkill_notifier()
+ */
+ eeepc_rfkill_hotplug(eeepc);
+ if (eeepc->hotplug_slot)
+ pci_hp_deregister(eeepc->hotplug_slot);
+ if (eeepc->hotplug_workqueue)
+ destroy_workqueue(eeepc->hotplug_workqueue);
+
+ if (eeepc->bluetooth_rfkill) {
+ rfkill_unregister(eeepc->bluetooth_rfkill);
+ rfkill_destroy(eeepc->bluetooth_rfkill);
+ eeepc->bluetooth_rfkill = NULL;
+ }
+ if (eeepc->wimax_rfkill) {
+ rfkill_unregister(eeepc->wimax_rfkill);
+ rfkill_destroy(eeepc->wimax_rfkill);
+ eeepc->wimax_rfkill = NULL;
+ }
+ if (eeepc->wwan3g_rfkill) {
+ rfkill_unregister(eeepc->wwan3g_rfkill);
+ rfkill_destroy(eeepc->wwan3g_rfkill);
+ eeepc->wwan3g_rfkill = NULL;
+ }
+}
+
+static int eeepc_wmi_rfkill_init(struct eeepc_wmi *eeepc)
+{
+ int result = 0;
+
+ mutex_init(&eeepc->hotplug_lock);
+ mutex_init(&eeepc->wmi_lock);
+
+ result = eeepc_new_rfkill(eeepc, &eeepc->wlan_rfkill,
+ "eeepc-wlan", RFKILL_TYPE_WLAN,
+ EEEPC_WMI_DEVID_WLAN);
+
+ if (result && result != -ENODEV)
+ goto exit;
+
+ result = eeepc_new_rfkill(eeepc, &eeepc->bluetooth_rfkill,
+ "eeepc-bluetooth", RFKILL_TYPE_BLUETOOTH,
+ EEEPC_WMI_DEVID_BLUETOOTH);
+
+ if (result && result != -ENODEV)
+ goto exit;
+
+ result = eeepc_new_rfkill(eeepc, &eeepc->wimax_rfkill,
+ "eeepc-wimax", RFKILL_TYPE_WIMAX,
+ EEEPC_WMI_DEVID_WIMAX);
+
+ if (result && result != -ENODEV)
+ goto exit;
+
+ result = eeepc_new_rfkill(eeepc, &eeepc->wwan3g_rfkill,
+ "eeepc-wwan3g", RFKILL_TYPE_WWAN,
+ EEEPC_WMI_DEVID_WWAN3G);
+
+ if (result && result != -ENODEV)
+ goto exit;
+
+ if (!eeepc->hotplug_wireless)
+ goto exit;
+
+ result = eeepc_setup_pci_hotplug(eeepc);
+ /*
+ * If we get -EBUSY then something else is handling the PCI hotplug -
+ * don't fail in this case
+ */
+ if (result == -EBUSY)
+ result = 0;
+
+ eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5");
+ eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6");
+ eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7");
+ /*
+ * Refresh pci hotplug in case the rfkill state was changed during
+ * setup.
+ */
+ eeepc_rfkill_hotplug(eeepc);
+
+exit:
+ if (result && result != -ENODEV)
+ eeepc_wmi_rfkill_exit(eeepc);
+
+ if (result == -ENODEV)
+ result = 0;
+
+ return result;
+}
+
+/*
+ * Backlight
+ */
+static int read_backlight_power(void)
+{
+ int ret = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_BACKLIGHT);
+
+ if (ret < 0)
+ return ret;
+
+ return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
+}
+
+static int read_brightness(struct backlight_device *bd)
+{
+ u32 retval;
+ acpi_status status;
+
+ status = eeepc_wmi_get_devstate(EEEPC_WMI_DEVID_BRIGHTNESS, &retval);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+ else
+ return retval & EEEPC_WMI_DSTS_BRIGHTNESS_MASK;
+}
+
+static int update_bl_status(struct backlight_device *bd)
+{
+ u32 ctrl_param;
+ acpi_status status;
+ int power;
+
+ ctrl_param = bd->props.brightness;
+
+ status = eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_BRIGHTNESS,
+ ctrl_param, NULL);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ power = read_backlight_power();
+ if (power != -ENODEV && bd->props.power != power) {
+ ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
+ status = eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_BACKLIGHT,
+ ctrl_param, NULL);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+ }
+ return 0;
+}
+
+static const struct backlight_ops eeepc_wmi_bl_ops = {
+ .get_brightness = read_brightness,
+ .update_status = update_bl_status,
+};
+
+static int eeepc_wmi_backlight_notify(struct eeepc_wmi *eeepc, int code)
+{
+ struct backlight_device *bd = eeepc->backlight_device;
+ int old = bd->props.brightness;
+ int new = old;
+
+ if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
+ new = code - NOTIFY_BRNUP_MIN + 1;
+ else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
+ new = code - NOTIFY_BRNDOWN_MIN;
+
+ bd->props.brightness = new;
+ backlight_update_status(bd);
+ backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
+
+ return old;
+}
+
+static int eeepc_wmi_backlight_init(struct eeepc_wmi *eeepc)
+{
+ struct backlight_device *bd;
+ struct backlight_properties props;
+ int max;
+ int power;
+
+ max = eeepc_wmi_get_devstate_bits(EEEPC_WMI_DEVID_BRIGHTNESS,
+ EEEPC_WMI_DSTS_MAX_BRIGTH_MASK);
+ power = read_backlight_power();
+
+ if (max < 0 && power < 0) {
+ /* Try to keep the original error */
+ if (max == -ENODEV && power == -ENODEV)
+ return -ENODEV;
+ if (max != -ENODEV)
+ return max;
+ else
+ return power;
+ }
+ if (max == -ENODEV)
+ max = 0;
+ if (power == -ENODEV)
+ power = FB_BLANK_UNBLANK;
+
+ memset(&props, 0, sizeof(struct backlight_properties));
+ props.max_brightness = max;
+ bd = backlight_device_register(EEEPC_WMI_FILE,
+ &eeepc->platform_device->dev, eeepc,
+ &eeepc_wmi_bl_ops, &props);
+ if (IS_ERR(bd)) {
+ pr_err("Could not register backlight device\n");
+ return PTR_ERR(bd);
+ }
+
+ eeepc->backlight_device = bd;
+
+ bd->props.brightness = read_brightness(bd);
+ bd->props.power = power;
+ backlight_update_status(bd);
+
+ return 0;
+}
+
+static void eeepc_wmi_backlight_exit(struct eeepc_wmi *eeepc)
+{
+ if (eeepc->backlight_device)
+ backlight_device_unregister(eeepc->backlight_device);
+
+ eeepc->backlight_device = NULL;
+}
+
+static void eeepc_wmi_notify(u32 value, void *context)
+{
+ struct eeepc_wmi *eeepc = context;
+ struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *obj;
+ acpi_status status;
+ int code;
+ int orig_code;
+
+ status = wmi_get_event_data(value, &response);
+ if (status != AE_OK) {
+ pr_err("bad event status 0x%x\n", status);
+ return;
+ }
+
+ obj = (union acpi_object *)response.pointer;
+
+ if (obj && obj->type == ACPI_TYPE_INTEGER) {
+ code = obj->integer.value;
+ orig_code = code;
+
+ if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
+ code = NOTIFY_BRNUP_MIN;
+ else if (code >= NOTIFY_BRNDOWN_MIN &&
+ code <= NOTIFY_BRNDOWN_MAX)
+ code = NOTIFY_BRNDOWN_MIN;
+
+ if (code == NOTIFY_BRNUP_MIN || code == NOTIFY_BRNDOWN_MIN) {
+ if (!acpi_video_backlight_support())
+ eeepc_wmi_backlight_notify(eeepc, orig_code);
+ }
+
+ if (!sparse_keymap_report_event(eeepc->inputdev,
+ code, 1, true))
+ pr_info("Unknown key %x pressed\n", code);
+ }
+
+ kfree(obj);
+}
+
+/*
+ * Sys helpers
+ */
+static int parse_arg(const char *buf, unsigned long count, int *val)
+{
+ if (!count)
+ return 0;
+ if (sscanf(buf, "%i", val) != 1)
+ return -EINVAL;
+ return count;
+}
+
+static ssize_t store_sys_wmi(int devid, const char *buf, size_t count)
+{
+ acpi_status status;
+ u32 retval;
+ int rv, value;
+
+ value = eeepc_wmi_get_devstate_simple(devid);
+ if (value == -ENODEV) /* Check device presence */
+ return value;
+
+ rv = parse_arg(buf, count, &value);
+ status = eeepc_wmi_set_devstate(devid, value, &retval);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+ return rv;
+}
+
+static ssize_t show_sys_wmi(int devid, char *buf)
+{
+ int value = eeepc_wmi_get_devstate_simple(devid);
+
+ if (value < 0)
+ return value;
+
+ return sprintf(buf, "%d\n", value);
+}
+
+#define EEEPC_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
+ static ssize_t show_##_name(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+ { \
+ return show_sys_wmi(_cm, buf); \
+ } \
+ static ssize_t store_##_name(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t count) \
+ { \
+ return store_sys_wmi(_cm, buf, count); \
+ } \
+ static struct device_attribute dev_attr_##_name = { \
+ .attr = { \
+ .name = __stringify(_name), \
+ .mode = _mode }, \
+ .show = show_##_name, \
+ .store = store_##_name, \
+ }
+
+EEEPC_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, EEEPC_WMI_DEVID_TOUCHPAD);
+EEEPC_WMI_CREATE_DEVICE_ATTR(camera, 0644, EEEPC_WMI_DEVID_CAMERA);
+EEEPC_WMI_CREATE_DEVICE_ATTR(cardr, 0644, EEEPC_WMI_DEVID_CARDREADER);
+
+static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int value;
+ struct acpi_buffer input = { (acpi_size)sizeof(value), &value };
+ acpi_status status;
+
+ if (!count || sscanf(buf, "%i", &value) != 1)
+ return -EINVAL;
+ if (value < 0 || value > 2)
+ return -EINVAL;
+
+ status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID,
+ 1, EEEPC_WMI_METHODID_CFVS, &input, NULL);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+ else
+ return count;
+}
+
+static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv);
+
+static struct attribute *platform_attributes[] = {
+ &dev_attr_cpufv.attr,
+ &dev_attr_camera.attr,
+ &dev_attr_cardr.attr,
+ &dev_attr_touchpad.attr,
+ NULL
+};
+
+static mode_t eeepc_sysfs_is_visible(struct kobject *kobj,
+ struct attribute *attr,
+ int idx)
+{
+ bool supported = true;
+ int devid = -1;
+
+ if (attr == &dev_attr_camera.attr)
+ devid = EEEPC_WMI_DEVID_CAMERA;
+ else if (attr == &dev_attr_cardr.attr)
+ devid = EEEPC_WMI_DEVID_CARDREADER;
+ else if (attr == &dev_attr_touchpad.attr)
+ devid = EEEPC_WMI_DEVID_TOUCHPAD;
+
+ if (devid != -1)
+ supported = eeepc_wmi_get_devstate_simple(devid) != -ENODEV;
+
+ return supported ? attr->mode : 0;
+}
+
+static struct attribute_group platform_attribute_group = {
+ .is_visible = eeepc_sysfs_is_visible,
+ .attrs = platform_attributes
+};
+
+static void eeepc_wmi_sysfs_exit(struct platform_device *device)
+{
+ sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
+}
+
+static int eeepc_wmi_sysfs_init(struct platform_device *device)
+{
+ return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
+}
+
+/*
+ * Platform device
+ */
+static int __init eeepc_wmi_platform_init(struct eeepc_wmi *eeepc)
+{
+ return eeepc_wmi_sysfs_init(eeepc->platform_device);
+}
+
+static void eeepc_wmi_platform_exit(struct eeepc_wmi *eeepc)
+{
+ eeepc_wmi_sysfs_exit(eeepc->platform_device);
+}
+
+/*
+ * debugfs
+ */
+struct eeepc_wmi_debugfs_node {
+ struct eeepc_wmi *eeepc;
+ char *name;
+ int (*show)(struct seq_file *m, void *data);
+};
+
+static int show_dsts(struct seq_file *m, void *data)
+{
+ struct eeepc_wmi *eeepc = m->private;
+ acpi_status status;
+ u32 retval = -1;
+
+ status = eeepc_wmi_get_devstate(eeepc->debug.dev_id, &retval);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ seq_printf(m, "DSTS(%x) = %x\n", eeepc->debug.dev_id, retval);
+
+ return 0;
+}
+
+static int show_devs(struct seq_file *m, void *data)
+{
+ struct eeepc_wmi *eeepc = m->private;
+ acpi_status status;
+ u32 retval = -1;
+
+ status = eeepc_wmi_set_devstate(eeepc->debug.dev_id,
+ eeepc->debug.ctrl_param, &retval);
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ seq_printf(m, "DEVS(%x, %x) = %x\n", eeepc->debug.dev_id,
+ eeepc->debug.ctrl_param, retval);
+
+ return 0;
+}
+
+static struct eeepc_wmi_debugfs_node eeepc_wmi_debug_files[] = {
+ { NULL, "devs", show_devs },
+ { NULL, "dsts", show_dsts },
+};
+
+static int eeepc_wmi_debugfs_open(struct inode *inode, struct file *file)
+{
+ struct eeepc_wmi_debugfs_node *node = inode->i_private;
+
+ return single_open(file, node->show, node->eeepc);
+}
+
+static const struct file_operations eeepc_wmi_debugfs_io_ops = {
+ .owner = THIS_MODULE,
+ .open = eeepc_wmi_debugfs_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static void eeepc_wmi_debugfs_exit(struct eeepc_wmi *eeepc)
+{
+ debugfs_remove_recursive(eeepc->debug.root);
+}
+
+static int eeepc_wmi_debugfs_init(struct eeepc_wmi *eeepc)
+{
+ struct dentry *dent;
+ int i;
+
+ eeepc->debug.root = debugfs_create_dir(EEEPC_WMI_FILE, NULL);
+ if (!eeepc->debug.root) {
+ pr_err("failed to create debugfs directory");
+ goto error_debugfs;
+ }
+
+ dent = debugfs_create_x32("dev_id", S_IRUGO|S_IWUSR,
+ eeepc->debug.root, &eeepc->debug.dev_id);
+ if (!dent)
+ goto error_debugfs;
+
+ dent = debugfs_create_x32("ctrl_param", S_IRUGO|S_IWUSR,
+ eeepc->debug.root, &eeepc->debug.ctrl_param);
+ if (!dent)
+ goto error_debugfs;
+
+ for (i = 0; i < ARRAY_SIZE(eeepc_wmi_debug_files); i++) {
+ struct eeepc_wmi_debugfs_node *node = &eeepc_wmi_debug_files[i];
+
+ node->eeepc = eeepc;
+ dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO,
+ eeepc->debug.root, node,
+ &eeepc_wmi_debugfs_io_ops);
+ if (!dent) {
+ pr_err("failed to create debug file: %s\n", node->name);
+ goto error_debugfs;
+ }
+ }
+
+ return 0;
+
+error_debugfs:
+ eeepc_wmi_debugfs_exit(eeepc);
+ return -ENOMEM;
+}
+
+/*
+ * WMI Driver
+ */
+static void eeepc_dmi_check(struct eeepc_wmi *eeepc)
+{
+ const char *model;
+
+ model = dmi_get_system_info(DMI_PRODUCT_NAME);
+ if (!model)
+ return;
+
+ /*
+ * Whitelist for wlan hotplug
+ *
+ * Eeepc 1000H needs the current hotplug code to handle
+ * Fn+F2 correctly. We may add other Eeepc here later, but
+ * it seems that most of the laptops supported by eeepc-wmi
+ * don't need to be on this list
+ */
+ if (strcmp(model, "1000H") == 0) {
+ eeepc->hotplug_wireless = true;
+ pr_info("wlan hotplug enabled\n");
+ }
+}
+
+static int __init eeepc_wmi_add(struct platform_device *pdev)
+{
+ struct eeepc_wmi *eeepc;
+ acpi_status status;
+ int err;
+
+ eeepc = kzalloc(sizeof(struct eeepc_wmi), GFP_KERNEL);
+ if (!eeepc)
+ return -ENOMEM;
+
+ eeepc->platform_device = pdev;
+ platform_set_drvdata(eeepc->platform_device, eeepc);
+
+ eeepc->hotplug_wireless = hotplug_wireless;
+ eeepc_dmi_check(eeepc);
+
+ err = eeepc_wmi_platform_init(eeepc);
+ if (err)
+ goto fail_platform;
+
+ err = eeepc_wmi_input_init(eeepc);
+ if (err)
+ goto fail_input;
+
+ err = eeepc_wmi_led_init(eeepc);
+ if (err)
+ goto fail_leds;
+
+ err = eeepc_wmi_rfkill_init(eeepc);
+ if (err)
+ goto fail_rfkill;
+
+ if (!acpi_video_backlight_support()) {
+ err = eeepc_wmi_backlight_init(eeepc);
+ if (err && err != -ENODEV)
+ goto fail_backlight;
+ } else
+ pr_info("Backlight controlled by ACPI video driver\n");
+
+ status = wmi_install_notify_handler(EEEPC_WMI_EVENT_GUID,
+ eeepc_wmi_notify, eeepc);
+ if (ACPI_FAILURE(status)) {
+ pr_err("Unable to register notify handler - %d\n",
+ status);
+ err = -ENODEV;
+ goto fail_wmi_handler;
+ }
+
+ err = eeepc_wmi_debugfs_init(eeepc);
+ if (err)
+ goto fail_debugfs;
+
+ return 0;
+
+fail_debugfs:
+ wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID);
+fail_wmi_handler:
+ eeepc_wmi_backlight_exit(eeepc);
+fail_backlight:
+ eeepc_wmi_rfkill_exit(eeepc);
+fail_rfkill:
+ eeepc_wmi_led_exit(eeepc);
+fail_leds:
+ eeepc_wmi_input_exit(eeepc);
+fail_input:
+ eeepc_wmi_platform_exit(eeepc);
+fail_platform:
+ kfree(eeepc);
+ return err;
+}
+
+static int __exit eeepc_wmi_remove(struct platform_device *device)
+{
+ struct eeepc_wmi *eeepc;
+
+ eeepc = platform_get_drvdata(device);
+ wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID);
+ eeepc_wmi_backlight_exit(eeepc);
+ eeepc_wmi_input_exit(eeepc);
+ eeepc_wmi_led_exit(eeepc);
+ eeepc_wmi_rfkill_exit(eeepc);
+ eeepc_wmi_debugfs_exit(eeepc);
+ eeepc_wmi_platform_exit(eeepc);
+
+ kfree(eeepc);
+ return 0;
+}
+
+/*
+ * Platform driver - hibernate/resume callbacks
+ */
+static int eeepc_hotk_thaw(struct device *device)
+{
+ struct eeepc_wmi *eeepc = dev_get_drvdata(device);
+
+ if (eeepc->wlan_rfkill) {
+ bool wlan;
+
+ /*
+ * Work around bios bug - acpi _PTS turns off the wireless led
+ * during suspend. Normally it restores it on resume, but
+ * we should kick it ourselves in case hibernation is aborted.
+ */
+ wlan = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WLAN);
+ eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_WLAN, wlan, NULL);
+ }
+
+ return 0;
+}
+
+static int eeepc_hotk_restore(struct device *device)
+{
+ struct eeepc_wmi *eeepc = dev_get_drvdata(device);
+ int bl;
+
+ /* Refresh both wlan rfkill state and pci hotplug */
+ if (eeepc->wlan_rfkill)
+ eeepc_rfkill_hotplug(eeepc);
+
+ if (eeepc->bluetooth_rfkill) {
+ bl = !eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_BLUETOOTH);
+ rfkill_set_sw_state(eeepc->bluetooth_rfkill, bl);
+ }
+ if (eeepc->wimax_rfkill) {
+ bl = !eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WIMAX);
+ rfkill_set_sw_state(eeepc->wimax_rfkill, bl);
+ }
+ if (eeepc->wwan3g_rfkill) {
+ bl = !eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WWAN3G);
+ rfkill_set_sw_state(eeepc->wwan3g_rfkill, bl);
+ }
+
+ return 0;
+}
+
+static const struct dev_pm_ops eeepc_pm_ops = {
+ .thaw = eeepc_hotk_thaw,
+ .restore = eeepc_hotk_restore,
+};
+
+static struct platform_driver platform_driver = {
+ .remove = __exit_p(eeepc_wmi_remove),
+ .driver = {
+ .name = EEEPC_WMI_FILE,
+ .owner = THIS_MODULE,
+ .pm = &eeepc_pm_ops,
+ },
+};
+
+static acpi_status __init eeepc_wmi_parse_device(acpi_handle handle, u32 level,
+ void *context, void **retval)
+{
+ pr_warning("Found legacy ATKD device (%s)", EEEPC_ACPI_HID);
+ *(bool *)context = true;
+ return AE_CTRL_TERMINATE;
+}
+
+static int __init eeepc_wmi_check_atkd(void)
+{
+ acpi_status status;
+ bool found = false;
+
+ status = acpi_get_devices(EEEPC_ACPI_HID, eeepc_wmi_parse_device,
+ &found, NULL);
+
+ if (ACPI_FAILURE(status) || !found)
+ return 0;
+ return -1;
+}
+
+static int __init eeepc_wmi_probe(struct platform_device *pdev)
+{
+ if (!wmi_has_guid(EEEPC_WMI_EVENT_GUID) ||
+ !wmi_has_guid(EEEPC_WMI_MGMT_GUID)) {
+ pr_warning("No known WMI GUID found\n");
+ return -ENODEV;
+ }
+
+ if (eeepc_wmi_check_atkd()) {
+ pr_warning("WMI device present, but legacy ATKD device is also "
+ "present and enabled.");
+ pr_warning("You probably booted with acpi_osi=\"Linux\" or "
+ "acpi_osi=\"!Windows 2009\"");
+ pr_warning("Can't load eeepc-wmi, use default acpi_osi "
+ "(preferred) or eeepc-laptop");
+ return -ENODEV;
+ }
+
+ return eeepc_wmi_add(pdev);
+}
+
+static struct platform_device *platform_device;
+
+static int __init eeepc_wmi_init(void)
+{
+ platform_device = platform_create_bundle(&platform_driver,
+ eeepc_wmi_probe,
+ NULL, 0, NULL, 0);
+ if (IS_ERR(platform_device))
+ return PTR_ERR(platform_device);
+ return 0;
+}
+
+static void __exit eeepc_wmi_exit(void)
+{
+ platform_device_unregister(platform_device);
+ platform_driver_unregister(&platform_driver);
+}
+
+module_init(eeepc_wmi_init);
+module_exit(eeepc_wmi_exit);
diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c
deleted file mode 100644
index d399775..0000000
--- a/drivers/platform/x86/eeepc-wmi.c
+++ /dev/null
@@ -1,1454 +0,0 @@
-/*
- * Eee PC WMI hotkey driver
- *
- * Copyright(C) 2010 Intel Corporation.
- * Copyright(C) 2010 Corentin Chary <corentin.chary@...il.com>
- *
- * Portions based on wistron_btns.c:
- * Copyright (C) 2005 Miloslav Trmac <mitr@...ny.cz>
- * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@...linux.org>
- * Copyright (C) 2005 Dmitry Torokhov <dtor@...l.ru>
- *
- * 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
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/input.h>
-#include <linux/input/sparse-keymap.h>
-#include <linux/fb.h>
-#include <linux/backlight.h>
-#include <linux/leds.h>
-#include <linux/rfkill.h>
-#include <linux/pci.h>
-#include <linux/pci_hotplug.h>
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include <linux/platform_device.h>
-#include <linux/dmi.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
-
-#define EEEPC_WMI_FILE "eeepc-wmi"
-
-MODULE_AUTHOR("Yong Wang <yong.y.wang@...el.com>");
-MODULE_DESCRIPTION("Eee PC WMI Hotkey Driver");
-MODULE_LICENSE("GPL");
-
-#define EEEPC_ACPI_HID "ASUS010" /* old _HID used in eeepc-laptop */
-
-#define EEEPC_WMI_EVENT_GUID "ABBC0F72-8EA1-11D1-00A0-C90629100000"
-#define EEEPC_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
-
-MODULE_ALIAS("wmi:"EEEPC_WMI_EVENT_GUID);
-MODULE_ALIAS("wmi:"EEEPC_WMI_MGMT_GUID);
-
-#define NOTIFY_BRNUP_MIN 0x11
-#define NOTIFY_BRNUP_MAX 0x1f
-#define NOTIFY_BRNDOWN_MIN 0x20
-#define NOTIFY_BRNDOWN_MAX 0x2e
-
-/* WMI Methods */
-#define EEEPC_WMI_METHODID_DSTS 0x53544344
-#define EEEPC_WMI_METHODID_DEVS 0x53564544
-#define EEEPC_WMI_METHODID_CFVS 0x53564643
-
-/* Wireless */
-#define EEEPC_WMI_DEVID_WLAN 0x00010011
-#define EEEPC_WMI_DEVID_BLUETOOTH 0x00010013
-#define EEEPC_WMI_DEVID_WIMAX 0x00010017
-#define EEEPC_WMI_DEVID_WWAN3G 0x00010019
-
-/* Backlight and Brightness */
-#define EEEPC_WMI_DEVID_BACKLIGHT 0x00050011
-#define EEEPC_WMI_DEVID_BRIGHTNESS 0x00050012
-
-/* Misc */
-#define EEEPC_WMI_DEVID_CAMERA 0x00060013
-
-/* Storage */
-#define EEEPC_WMI_DEVID_CARDREADER 0x00080013
-
-/* Input */
-#define EEEPC_WMI_DEVID_TOUCHPAD 0x00100011
-#define EEEPC_WMI_DEVID_TOUCHPAD_LED 0x00100012
-
-/* DSTS masks */
-#define EEEPC_WMI_DSTS_STATUS_BIT 0x00000001
-#define EEEPC_WMI_DSTS_PRESENCE_BIT 0x00010000
-#define EEEPC_WMI_DSTS_BRIGHTNESS_MASK 0x000000FF
-#define EEEPC_WMI_DSTS_MAX_BRIGTH_MASK 0x0000FF00
-
-static bool hotplug_wireless;
-
-module_param(hotplug_wireless, bool, 0444);
-MODULE_PARM_DESC(hotplug_wireless,
- "Enable hotplug for wireless device. "
- "If your laptop needs that, please report to "
- "acpi4asus-user@...ts.sourceforge.net.");
-
-static const struct key_entry eeepc_wmi_keymap[] = {
- /* Sleep already handled via generic ACPI code */
- { KE_IGNORE, NOTIFY_BRNDOWN_MIN, { KEY_BRIGHTNESSDOWN } },
- { KE_IGNORE, NOTIFY_BRNUP_MIN, { KEY_BRIGHTNESSUP } },
- { KE_KEY, 0x30, { KEY_VOLUMEUP } },
- { KE_KEY, 0x31, { KEY_VOLUMEDOWN } },
- { KE_KEY, 0x32, { KEY_MUTE } },
- { KE_KEY, 0x5c, { KEY_F15 } }, /* Power Gear key */
- { KE_KEY, 0x5d, { KEY_WLAN } },
- { KE_KEY, 0x6b, { KEY_F13 } }, /* Disable Touchpad */
- { KE_KEY, 0x82, { KEY_CAMERA } },
- { KE_KEY, 0x83, { KEY_CAMERA_ZOOMIN } },
- { KE_KEY, 0x88, { KEY_WLAN } },
- { KE_KEY, 0xcc, { KEY_SWITCHVIDEOMODE } },
- { KE_KEY, 0xe0, { KEY_PROG1 } }, /* Task Manager */
- { KE_KEY, 0xe1, { KEY_F14 } }, /* Change Resolution */
- { KE_KEY, 0xe9, { KEY_BRIGHTNESS_ZERO } },
- { KE_KEY, 0xeb, { KEY_CAMERA_ZOOMOUT } },
- { KE_KEY, 0xec, { KEY_CAMERA_UP } },
- { KE_KEY, 0xed, { KEY_CAMERA_DOWN } },
- { KE_KEY, 0xee, { KEY_CAMERA_LEFT } },
- { KE_KEY, 0xef, { KEY_CAMERA_RIGHT } },
- { KE_END, 0},
-};
-
-struct bios_args {
- u32 dev_id;
- u32 ctrl_param;
-};
-
-/*
- * eeepc-wmi/ - debugfs root directory
- * dev_id - current dev_id
- * ctrl_param - current ctrl_param
- * devs - call DEVS(dev_id, ctrl_param) and print result
- * dsts - call DSTS(dev_id) and print result
- */
-struct eeepc_wmi_debug {
- struct dentry *root;
- u32 dev_id;
- u32 ctrl_param;
-};
-
-struct eeepc_wmi {
- bool hotplug_wireless;
-
- struct input_dev *inputdev;
- struct backlight_device *backlight_device;
- struct platform_device *platform_device;
-
- struct led_classdev tpd_led;
- int tpd_led_wk;
- struct workqueue_struct *led_workqueue;
- struct work_struct tpd_led_work;
-
- struct rfkill *wlan_rfkill;
- struct rfkill *bluetooth_rfkill;
- struct rfkill *wimax_rfkill;
- struct rfkill *wwan3g_rfkill;
-
- struct hotplug_slot *hotplug_slot;
- struct mutex hotplug_lock;
- struct mutex wmi_lock;
- struct workqueue_struct *hotplug_workqueue;
- struct work_struct hotplug_work;
-
- struct eeepc_wmi_debug debug;
-};
-
-static int eeepc_wmi_input_init(struct eeepc_wmi *eeepc)
-{
- int err;
-
- eeepc->inputdev = input_allocate_device();
- if (!eeepc->inputdev)
- return -ENOMEM;
-
- eeepc->inputdev->name = "Eee PC WMI hotkeys";
- eeepc->inputdev->phys = EEEPC_WMI_FILE "/input0";
- eeepc->inputdev->id.bustype = BUS_HOST;
- eeepc->inputdev->dev.parent = &eeepc->platform_device->dev;
-
- err = sparse_keymap_setup(eeepc->inputdev, eeepc_wmi_keymap, NULL);
- if (err)
- goto err_free_dev;
-
- err = input_register_device(eeepc->inputdev);
- if (err)
- goto err_free_keymap;
-
- return 0;
-
-err_free_keymap:
- sparse_keymap_free(eeepc->inputdev);
-err_free_dev:
- input_free_device(eeepc->inputdev);
- return err;
-}
-
-static void eeepc_wmi_input_exit(struct eeepc_wmi *eeepc)
-{
- if (eeepc->inputdev) {
- sparse_keymap_free(eeepc->inputdev);
- input_unregister_device(eeepc->inputdev);
- }
-
- eeepc->inputdev = NULL;
-}
-
-static acpi_status eeepc_wmi_get_devstate(u32 dev_id, u32 *retval)
-{
- struct acpi_buffer input = { (acpi_size)sizeof(u32), &dev_id };
- struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
- acpi_status status;
- u32 tmp;
-
- status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID,
- 1, EEEPC_WMI_METHODID_DSTS,
- &input, &output);
-
- if (ACPI_FAILURE(status))
- return status;
-
- obj = (union acpi_object *)output.pointer;
- if (obj && obj->type == ACPI_TYPE_INTEGER)
- tmp = (u32)obj->integer.value;
- else
- tmp = 0;
-
- if (retval)
- *retval = tmp;
-
- kfree(obj);
-
- return status;
-
-}
-
-static acpi_status eeepc_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
- u32 *retval)
-{
- struct bios_args args = {
- .dev_id = dev_id,
- .ctrl_param = ctrl_param,
- };
- struct acpi_buffer input = { (acpi_size)sizeof(args), &args };
- acpi_status status;
-
- if (!retval) {
- status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID, 1,
- EEEPC_WMI_METHODID_DEVS,
- &input, NULL);
- } else {
- struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
- u32 tmp;
-
- status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID, 1,
- EEEPC_WMI_METHODID_DEVS,
- &input, &output);
-
- if (ACPI_FAILURE(status))
- return status;
-
- obj = (union acpi_object *)output.pointer;
- if (obj && obj->type == ACPI_TYPE_INTEGER)
- tmp = (u32)obj->integer.value;
- else
- tmp = 0;
-
- *retval = tmp;
-
- kfree(obj);
- }
-
- return status;
-}
-
-/* Helper for special devices with magic return codes */
-static int eeepc_wmi_get_devstate_bits(u32 dev_id, u32 mask)
-{
- u32 retval = 0;
- acpi_status status;
-
- status = eeepc_wmi_get_devstate(dev_id, &retval);
-
- if (ACPI_FAILURE(status))
- return -EINVAL;
-
- if (!(retval & EEEPC_WMI_DSTS_PRESENCE_BIT))
- return -ENODEV;
-
- return retval & mask;
-}
-
-static int eeepc_wmi_get_devstate_simple(u32 dev_id)
-{
- return eeepc_wmi_get_devstate_bits(dev_id, EEEPC_WMI_DSTS_STATUS_BIT);
-}
-
-/*
- * LEDs
- */
-/*
- * These functions actually update the LED's, and are called from a
- * workqueue. By doing this as separate work rather than when the LED
- * subsystem asks, we avoid messing with the Eeepc ACPI stuff during a
- * potentially bad time, such as a timer interrupt.
- */
-static void tpd_led_update(struct work_struct *work)
-{
- int ctrl_param;
- struct eeepc_wmi *eeepc;
-
- eeepc = container_of(work, struct eeepc_wmi, tpd_led_work);
-
- ctrl_param = eeepc->tpd_led_wk;
- eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
-}
-
-static void tpd_led_set(struct led_classdev *led_cdev,
- enum led_brightness value)
-{
- struct eeepc_wmi *eeepc;
-
- eeepc = container_of(led_cdev, struct eeepc_wmi, tpd_led);
-
- eeepc->tpd_led_wk = !!value;
- queue_work(eeepc->led_workqueue, &eeepc->tpd_led_work);
-}
-
-static int read_tpd_led_state(struct eeepc_wmi *eeepc)
-{
- return eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_TOUCHPAD_LED);
-}
-
-static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
-{
- struct eeepc_wmi *eeepc;
-
- eeepc = container_of(led_cdev, struct eeepc_wmi, tpd_led);
-
- return read_tpd_led_state(eeepc);
-}
-
-static int eeepc_wmi_led_init(struct eeepc_wmi *eeepc)
-{
- int rv;
-
- if (read_tpd_led_state(eeepc) < 0)
- return 0;
-
- eeepc->led_workqueue = create_singlethread_workqueue("led_workqueue");
- if (!eeepc->led_workqueue)
- return -ENOMEM;
- INIT_WORK(&eeepc->tpd_led_work, tpd_led_update);
-
- eeepc->tpd_led.name = "eeepc::touchpad";
- eeepc->tpd_led.brightness_set = tpd_led_set;
- eeepc->tpd_led.brightness_get = tpd_led_get;
- eeepc->tpd_led.max_brightness = 1;
-
- rv = led_classdev_register(&eeepc->platform_device->dev,
- &eeepc->tpd_led);
- if (rv) {
- destroy_workqueue(eeepc->led_workqueue);
- return rv;
- }
-
- return 0;
-}
-
-static void eeepc_wmi_led_exit(struct eeepc_wmi *eeepc)
-{
- if (eeepc->tpd_led.dev)
- led_classdev_unregister(&eeepc->tpd_led);
- if (eeepc->led_workqueue)
- destroy_workqueue(eeepc->led_workqueue);
-}
-
-/*
- * PCI hotplug (for wlan rfkill)
- */
-static bool eeepc_wlan_rfkill_blocked(struct eeepc_wmi *eeepc)
-{
- int result = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WLAN);
-
- if (result < 0)
- return false;
- return !result;
-}
-
-static void eeepc_rfkill_hotplug(struct eeepc_wmi *eeepc)
-{
- struct pci_dev *dev;
- struct pci_bus *bus;
- bool blocked;
- bool absent;
- u32 l;
-
- mutex_lock(&eeepc->wmi_lock);
- blocked = eeepc_wlan_rfkill_blocked(eeepc);
- mutex_unlock(&eeepc->wmi_lock);
-
- mutex_lock(&eeepc->hotplug_lock);
-
- if (eeepc->wlan_rfkill)
- rfkill_set_sw_state(eeepc->wlan_rfkill, blocked);
-
- if (eeepc->hotplug_slot) {
- bus = pci_find_bus(0, 1);
- if (!bus) {
- pr_warning("Unable to find PCI bus 1?\n");
- goto out_unlock;
- }
-
- if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) {
- pr_err("Unable to read PCI config space?\n");
- goto out_unlock;
- }
- absent = (l == 0xffffffff);
-
- if (blocked != absent) {
- pr_warning("BIOS says wireless lan is %s, "
- "but the pci device is %s\n",
- blocked ? "blocked" : "unblocked",
- absent ? "absent" : "present");
- pr_warning("skipped wireless hotplug as probably "
- "inappropriate for this model\n");
- goto out_unlock;
- }
-
- if (!blocked) {
- dev = pci_get_slot(bus, 0);
- if (dev) {
- /* Device already present */
- pci_dev_put(dev);
- goto out_unlock;
- }
- dev = pci_scan_single_device(bus, 0);
- if (dev) {
- pci_bus_assign_resources(bus);
- if (pci_bus_add_device(dev))
- pr_err("Unable to hotplug wifi\n");
- }
- } else {
- dev = pci_get_slot(bus, 0);
- if (dev) {
- pci_remove_bus_device(dev);
- pci_dev_put(dev);
- }
- }
- }
-
-out_unlock:
- mutex_unlock(&eeepc->hotplug_lock);
-}
-
-static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data)
-{
- struct eeepc_wmi *eeepc = data;
-
- if (event != ACPI_NOTIFY_BUS_CHECK)
- return;
-
- /*
- * We can't call directly eeepc_rfkill_hotplug because most
- * of the time WMBC is still being executed and not reetrant.
- * There is currently no way to tell ACPICA that we want this
- * method to be serialized, we schedule a eeepc_rfkill_hotplug
- * call later, in a safer context.
- */
- queue_work(eeepc->hotplug_workqueue, &eeepc->hotplug_work);
-}
-
-static int eeepc_register_rfkill_notifier(struct eeepc_wmi *eeepc,
- char *node)
-{
- acpi_status status;
- acpi_handle handle;
-
- status = acpi_get_handle(NULL, node, &handle);
-
- if (ACPI_SUCCESS(status)) {
- status = acpi_install_notify_handler(handle,
- ACPI_SYSTEM_NOTIFY,
- eeepc_rfkill_notify,
- eeepc);
- if (ACPI_FAILURE(status))
- pr_warning("Failed to register notify on %s\n", node);
- } else
- return -ENODEV;
-
- return 0;
-}
-
-static void eeepc_unregister_rfkill_notifier(struct eeepc_wmi *eeepc,
- char *node)
-{
- acpi_status status = AE_OK;
- acpi_handle handle;
-
- status = acpi_get_handle(NULL, node, &handle);
-
- if (ACPI_SUCCESS(status)) {
- status = acpi_remove_notify_handler(handle,
- ACPI_SYSTEM_NOTIFY,
- eeepc_rfkill_notify);
- if (ACPI_FAILURE(status))
- pr_err("Error removing rfkill notify handler %s\n",
- node);
- }
-}
-
-static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot,
- u8 *value)
-{
- int result = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WLAN);
-
- if (result < 0)
- return result;
-
- *value = !!result;
- return 0;
-}
-
-static void eeepc_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
-{
- kfree(hotplug_slot->info);
- kfree(hotplug_slot);
-}
-
-static struct hotplug_slot_ops eeepc_hotplug_slot_ops = {
- .owner = THIS_MODULE,
- .get_adapter_status = eeepc_get_adapter_status,
- .get_power_status = eeepc_get_adapter_status,
-};
-
-static void eeepc_hotplug_work(struct work_struct *work)
-{
- struct eeepc_wmi *eeepc;
-
- eeepc = container_of(work, struct eeepc_wmi, hotplug_work);
- eeepc_rfkill_hotplug(eeepc);
-}
-
-static int eeepc_setup_pci_hotplug(struct eeepc_wmi *eeepc)
-{
- int ret = -ENOMEM;
- struct pci_bus *bus = pci_find_bus(0, 1);
-
- if (!bus) {
- pr_err("Unable to find wifi PCI bus\n");
- return -ENODEV;
- }
-
- eeepc->hotplug_workqueue =
- create_singlethread_workqueue("hotplug_workqueue");
- if (!eeepc->hotplug_workqueue)
- goto error_workqueue;
-
- INIT_WORK(&eeepc->hotplug_work, eeepc_hotplug_work);
-
- eeepc->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
- if (!eeepc->hotplug_slot)
- goto error_slot;
-
- eeepc->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
- GFP_KERNEL);
- if (!eeepc->hotplug_slot->info)
- goto error_info;
-
- eeepc->hotplug_slot->private = eeepc;
- eeepc->hotplug_slot->release = &eeepc_cleanup_pci_hotplug;
- eeepc->hotplug_slot->ops = &eeepc_hotplug_slot_ops;
- eeepc_get_adapter_status(eeepc->hotplug_slot,
- &eeepc->hotplug_slot->info->adapter_status);
-
- ret = pci_hp_register(eeepc->hotplug_slot, bus, 0, "eeepc-wifi");
- if (ret) {
- pr_err("Unable to register hotplug slot - %d\n", ret);
- goto error_register;
- }
-
- return 0;
-
-error_register:
- kfree(eeepc->hotplug_slot->info);
-error_info:
- kfree(eeepc->hotplug_slot);
- eeepc->hotplug_slot = NULL;
-error_slot:
- destroy_workqueue(eeepc->hotplug_workqueue);
-error_workqueue:
- return ret;
-}
-
-/*
- * Rfkill devices
- */
-static int eeepc_rfkill_set(void *data, bool blocked)
-{
- int dev_id = (unsigned long)data;
- u32 ctrl_param = !blocked;
- acpi_status status;
-
- status = eeepc_wmi_set_devstate(dev_id, ctrl_param, NULL);
-
- if (ACPI_FAILURE(status))
- return -EIO;
-
- return 0;
-}
-
-static void eeepc_rfkill_query(struct rfkill *rfkill, void *data)
-{
- int dev_id = (unsigned long)data;
- int result;
-
- result = eeepc_wmi_get_devstate_simple(dev_id);
-
- if (result < 0)
- return ;
-
- rfkill_set_sw_state(rfkill, !result);
-}
-
-static int eeepc_rfkill_wlan_set(void *data, bool blocked)
-{
- struct eeepc_wmi *eeepc = data;
- int ret;
-
- /*
- * This handler is enabled only if hotplug is enabled.
- * In this case, the eeepc_wmi_set_devstate() will
- * trigger a wmi notification and we need to wait
- * this call to finish before being able to call
- * any wmi method
- */
- mutex_lock(&eeepc->wmi_lock);
- ret = eeepc_rfkill_set((void *)(long)EEEPC_WMI_DEVID_WLAN, blocked);
- mutex_unlock(&eeepc->wmi_lock);
- return ret;
-}
-
-static void eeepc_rfkill_wlan_query(struct rfkill *rfkill, void *data)
-{
- eeepc_rfkill_query(rfkill, (void *)(long)EEEPC_WMI_DEVID_WLAN);
-}
-
-static const struct rfkill_ops eeepc_rfkill_wlan_ops = {
- .set_block = eeepc_rfkill_wlan_set,
- .query = eeepc_rfkill_wlan_query,
-};
-
-static const struct rfkill_ops eeepc_rfkill_ops = {
- .set_block = eeepc_rfkill_set,
- .query = eeepc_rfkill_query,
-};
-
-static int eeepc_new_rfkill(struct eeepc_wmi *eeepc,
- struct rfkill **rfkill,
- const char *name,
- enum rfkill_type type, int dev_id)
-{
- int result = eeepc_wmi_get_devstate_simple(dev_id);
-
- if (result < 0)
- return result;
-
- if (dev_id == EEEPC_WMI_DEVID_WLAN && eeepc->hotplug_wireless)
- *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type,
- &eeepc_rfkill_wlan_ops, eeepc);
- else
- *rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type,
- &eeepc_rfkill_ops, (void *)(long)dev_id);
-
- if (!*rfkill)
- return -EINVAL;
-
- rfkill_init_sw_state(*rfkill, !result);
- result = rfkill_register(*rfkill);
- if (result) {
- rfkill_destroy(*rfkill);
- *rfkill = NULL;
- return result;
- }
- return 0;
-}
-
-static void eeepc_wmi_rfkill_exit(struct eeepc_wmi *eeepc)
-{
- eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5");
- eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6");
- eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7");
- if (eeepc->wlan_rfkill) {
- rfkill_unregister(eeepc->wlan_rfkill);
- rfkill_destroy(eeepc->wlan_rfkill);
- eeepc->wlan_rfkill = NULL;
- }
- /*
- * Refresh pci hotplug in case the rfkill state was changed after
- * eeepc_unregister_rfkill_notifier()
- */
- eeepc_rfkill_hotplug(eeepc);
- if (eeepc->hotplug_slot)
- pci_hp_deregister(eeepc->hotplug_slot);
- if (eeepc->hotplug_workqueue)
- destroy_workqueue(eeepc->hotplug_workqueue);
-
- if (eeepc->bluetooth_rfkill) {
- rfkill_unregister(eeepc->bluetooth_rfkill);
- rfkill_destroy(eeepc->bluetooth_rfkill);
- eeepc->bluetooth_rfkill = NULL;
- }
- if (eeepc->wimax_rfkill) {
- rfkill_unregister(eeepc->wimax_rfkill);
- rfkill_destroy(eeepc->wimax_rfkill);
- eeepc->wimax_rfkill = NULL;
- }
- if (eeepc->wwan3g_rfkill) {
- rfkill_unregister(eeepc->wwan3g_rfkill);
- rfkill_destroy(eeepc->wwan3g_rfkill);
- eeepc->wwan3g_rfkill = NULL;
- }
-}
-
-static int eeepc_wmi_rfkill_init(struct eeepc_wmi *eeepc)
-{
- int result = 0;
-
- mutex_init(&eeepc->hotplug_lock);
- mutex_init(&eeepc->wmi_lock);
-
- result = eeepc_new_rfkill(eeepc, &eeepc->wlan_rfkill,
- "eeepc-wlan", RFKILL_TYPE_WLAN,
- EEEPC_WMI_DEVID_WLAN);
-
- if (result && result != -ENODEV)
- goto exit;
-
- result = eeepc_new_rfkill(eeepc, &eeepc->bluetooth_rfkill,
- "eeepc-bluetooth", RFKILL_TYPE_BLUETOOTH,
- EEEPC_WMI_DEVID_BLUETOOTH);
-
- if (result && result != -ENODEV)
- goto exit;
-
- result = eeepc_new_rfkill(eeepc, &eeepc->wimax_rfkill,
- "eeepc-wimax", RFKILL_TYPE_WIMAX,
- EEEPC_WMI_DEVID_WIMAX);
-
- if (result && result != -ENODEV)
- goto exit;
-
- result = eeepc_new_rfkill(eeepc, &eeepc->wwan3g_rfkill,
- "eeepc-wwan3g", RFKILL_TYPE_WWAN,
- EEEPC_WMI_DEVID_WWAN3G);
-
- if (result && result != -ENODEV)
- goto exit;
-
- if (!eeepc->hotplug_wireless)
- goto exit;
-
- result = eeepc_setup_pci_hotplug(eeepc);
- /*
- * If we get -EBUSY then something else is handling the PCI hotplug -
- * don't fail in this case
- */
- if (result == -EBUSY)
- result = 0;
-
- eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5");
- eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6");
- eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7");
- /*
- * Refresh pci hotplug in case the rfkill state was changed during
- * setup.
- */
- eeepc_rfkill_hotplug(eeepc);
-
-exit:
- if (result && result != -ENODEV)
- eeepc_wmi_rfkill_exit(eeepc);
-
- if (result == -ENODEV)
- result = 0;
-
- return result;
-}
-
-/*
- * Backlight
- */
-static int read_backlight_power(void)
-{
- int ret = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_BACKLIGHT);
-
- if (ret < 0)
- return ret;
-
- return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
-}
-
-static int read_brightness(struct backlight_device *bd)
-{
- u32 retval;
- acpi_status status;
-
- status = eeepc_wmi_get_devstate(EEEPC_WMI_DEVID_BRIGHTNESS, &retval);
-
- if (ACPI_FAILURE(status))
- return -EIO;
- else
- return retval & EEEPC_WMI_DSTS_BRIGHTNESS_MASK;
-}
-
-static int update_bl_status(struct backlight_device *bd)
-{
- u32 ctrl_param;
- acpi_status status;
- int power;
-
- ctrl_param = bd->props.brightness;
-
- status = eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_BRIGHTNESS,
- ctrl_param, NULL);
-
- if (ACPI_FAILURE(status))
- return -EIO;
-
- power = read_backlight_power();
- if (power != -ENODEV && bd->props.power != power) {
- ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
- status = eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_BACKLIGHT,
- ctrl_param, NULL);
-
- if (ACPI_FAILURE(status))
- return -EIO;
- }
- return 0;
-}
-
-static const struct backlight_ops eeepc_wmi_bl_ops = {
- .get_brightness = read_brightness,
- .update_status = update_bl_status,
-};
-
-static int eeepc_wmi_backlight_notify(struct eeepc_wmi *eeepc, int code)
-{
- struct backlight_device *bd = eeepc->backlight_device;
- int old = bd->props.brightness;
- int new = old;
-
- if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
- new = code - NOTIFY_BRNUP_MIN + 1;
- else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
- new = code - NOTIFY_BRNDOWN_MIN;
-
- bd->props.brightness = new;
- backlight_update_status(bd);
- backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY);
-
- return old;
-}
-
-static int eeepc_wmi_backlight_init(struct eeepc_wmi *eeepc)
-{
- struct backlight_device *bd;
- struct backlight_properties props;
- int max;
- int power;
-
- max = eeepc_wmi_get_devstate_bits(EEEPC_WMI_DEVID_BRIGHTNESS,
- EEEPC_WMI_DSTS_MAX_BRIGTH_MASK);
- power = read_backlight_power();
-
- if (max < 0 && power < 0) {
- /* Try to keep the original error */
- if (max == -ENODEV && power == -ENODEV)
- return -ENODEV;
- if (max != -ENODEV)
- return max;
- else
- return power;
- }
- if (max == -ENODEV)
- max = 0;
- if (power == -ENODEV)
- power = FB_BLANK_UNBLANK;
-
- memset(&props, 0, sizeof(struct backlight_properties));
- props.max_brightness = max;
- bd = backlight_device_register(EEEPC_WMI_FILE,
- &eeepc->platform_device->dev, eeepc,
- &eeepc_wmi_bl_ops, &props);
- if (IS_ERR(bd)) {
- pr_err("Could not register backlight device\n");
- return PTR_ERR(bd);
- }
-
- eeepc->backlight_device = bd;
-
- bd->props.brightness = read_brightness(bd);
- bd->props.power = power;
- backlight_update_status(bd);
-
- return 0;
-}
-
-static void eeepc_wmi_backlight_exit(struct eeepc_wmi *eeepc)
-{
- if (eeepc->backlight_device)
- backlight_device_unregister(eeepc->backlight_device);
-
- eeepc->backlight_device = NULL;
-}
-
-static void eeepc_wmi_notify(u32 value, void *context)
-{
- struct eeepc_wmi *eeepc = context;
- struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
- acpi_status status;
- int code;
- int orig_code;
-
- status = wmi_get_event_data(value, &response);
- if (status != AE_OK) {
- pr_err("bad event status 0x%x\n", status);
- return;
- }
-
- obj = (union acpi_object *)response.pointer;
-
- if (obj && obj->type == ACPI_TYPE_INTEGER) {
- code = obj->integer.value;
- orig_code = code;
-
- if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
- code = NOTIFY_BRNUP_MIN;
- else if (code >= NOTIFY_BRNDOWN_MIN &&
- code <= NOTIFY_BRNDOWN_MAX)
- code = NOTIFY_BRNDOWN_MIN;
-
- if (code == NOTIFY_BRNUP_MIN || code == NOTIFY_BRNDOWN_MIN) {
- if (!acpi_video_backlight_support())
- eeepc_wmi_backlight_notify(eeepc, orig_code);
- }
-
- if (!sparse_keymap_report_event(eeepc->inputdev,
- code, 1, true))
- pr_info("Unknown key %x pressed\n", code);
- }
-
- kfree(obj);
-}
-
-/*
- * Sys helpers
- */
-static int parse_arg(const char *buf, unsigned long count, int *val)
-{
- if (!count)
- return 0;
- if (sscanf(buf, "%i", val) != 1)
- return -EINVAL;
- return count;
-}
-
-static ssize_t store_sys_wmi(int devid, const char *buf, size_t count)
-{
- acpi_status status;
- u32 retval;
- int rv, value;
-
- value = eeepc_wmi_get_devstate_simple(devid);
- if (value == -ENODEV) /* Check device presence */
- return value;
-
- rv = parse_arg(buf, count, &value);
- status = eeepc_wmi_set_devstate(devid, value, &retval);
-
- if (ACPI_FAILURE(status))
- return -EIO;
- return rv;
-}
-
-static ssize_t show_sys_wmi(int devid, char *buf)
-{
- int value = eeepc_wmi_get_devstate_simple(devid);
-
- if (value < 0)
- return value;
-
- return sprintf(buf, "%d\n", value);
-}
-
-#define EEEPC_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
- static ssize_t show_##_name(struct device *dev, \
- struct device_attribute *attr, \
- char *buf) \
- { \
- return show_sys_wmi(_cm, buf); \
- } \
- static ssize_t store_##_name(struct device *dev, \
- struct device_attribute *attr, \
- const char *buf, size_t count) \
- { \
- return store_sys_wmi(_cm, buf, count); \
- } \
- static struct device_attribute dev_attr_##_name = { \
- .attr = { \
- .name = __stringify(_name), \
- .mode = _mode }, \
- .show = show_##_name, \
- .store = store_##_name, \
- }
-
-EEEPC_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, EEEPC_WMI_DEVID_TOUCHPAD);
-EEEPC_WMI_CREATE_DEVICE_ATTR(camera, 0644, EEEPC_WMI_DEVID_CAMERA);
-EEEPC_WMI_CREATE_DEVICE_ATTR(cardr, 0644, EEEPC_WMI_DEVID_CARDREADER);
-
-static ssize_t store_cpufv(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- int value;
- struct acpi_buffer input = { (acpi_size)sizeof(value), &value };
- acpi_status status;
-
- if (!count || sscanf(buf, "%i", &value) != 1)
- return -EINVAL;
- if (value < 0 || value > 2)
- return -EINVAL;
-
- status = wmi_evaluate_method(EEEPC_WMI_MGMT_GUID,
- 1, EEEPC_WMI_METHODID_CFVS, &input, NULL);
-
- if (ACPI_FAILURE(status))
- return -EIO;
- else
- return count;
-}
-
-static DEVICE_ATTR(cpufv, S_IRUGO | S_IWUSR, NULL, store_cpufv);
-
-static struct attribute *platform_attributes[] = {
- &dev_attr_cpufv.attr,
- &dev_attr_camera.attr,
- &dev_attr_cardr.attr,
- &dev_attr_touchpad.attr,
- NULL
-};
-
-static mode_t eeepc_sysfs_is_visible(struct kobject *kobj,
- struct attribute *attr,
- int idx)
-{
- bool supported = true;
- int devid = -1;
-
- if (attr == &dev_attr_camera.attr)
- devid = EEEPC_WMI_DEVID_CAMERA;
- else if (attr == &dev_attr_cardr.attr)
- devid = EEEPC_WMI_DEVID_CARDREADER;
- else if (attr == &dev_attr_touchpad.attr)
- devid = EEEPC_WMI_DEVID_TOUCHPAD;
-
- if (devid != -1)
- supported = eeepc_wmi_get_devstate_simple(devid) != -ENODEV;
-
- return supported ? attr->mode : 0;
-}
-
-static struct attribute_group platform_attribute_group = {
- .is_visible = eeepc_sysfs_is_visible,
- .attrs = platform_attributes
-};
-
-static void eeepc_wmi_sysfs_exit(struct platform_device *device)
-{
- sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
-}
-
-static int eeepc_wmi_sysfs_init(struct platform_device *device)
-{
- return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
-}
-
-/*
- * Platform device
- */
-static int __init eeepc_wmi_platform_init(struct eeepc_wmi *eeepc)
-{
- return eeepc_wmi_sysfs_init(eeepc->platform_device);
-}
-
-static void eeepc_wmi_platform_exit(struct eeepc_wmi *eeepc)
-{
- eeepc_wmi_sysfs_exit(eeepc->platform_device);
-}
-
-/*
- * debugfs
- */
-struct eeepc_wmi_debugfs_node {
- struct eeepc_wmi *eeepc;
- char *name;
- int (*show)(struct seq_file *m, void *data);
-};
-
-static int show_dsts(struct seq_file *m, void *data)
-{
- struct eeepc_wmi *eeepc = m->private;
- acpi_status status;
- u32 retval = -1;
-
- status = eeepc_wmi_get_devstate(eeepc->debug.dev_id, &retval);
-
- if (ACPI_FAILURE(status))
- return -EIO;
-
- seq_printf(m, "DSTS(%x) = %x\n", eeepc->debug.dev_id, retval);
-
- return 0;
-}
-
-static int show_devs(struct seq_file *m, void *data)
-{
- struct eeepc_wmi *eeepc = m->private;
- acpi_status status;
- u32 retval = -1;
-
- status = eeepc_wmi_set_devstate(eeepc->debug.dev_id,
- eeepc->debug.ctrl_param, &retval);
- if (ACPI_FAILURE(status))
- return -EIO;
-
- seq_printf(m, "DEVS(%x, %x) = %x\n", eeepc->debug.dev_id,
- eeepc->debug.ctrl_param, retval);
-
- return 0;
-}
-
-static struct eeepc_wmi_debugfs_node eeepc_wmi_debug_files[] = {
- { NULL, "devs", show_devs },
- { NULL, "dsts", show_dsts },
-};
-
-static int eeepc_wmi_debugfs_open(struct inode *inode, struct file *file)
-{
- struct eeepc_wmi_debugfs_node *node = inode->i_private;
-
- return single_open(file, node->show, node->eeepc);
-}
-
-static const struct file_operations eeepc_wmi_debugfs_io_ops = {
- .owner = THIS_MODULE,
- .open = eeepc_wmi_debugfs_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static void eeepc_wmi_debugfs_exit(struct eeepc_wmi *eeepc)
-{
- debugfs_remove_recursive(eeepc->debug.root);
-}
-
-static int eeepc_wmi_debugfs_init(struct eeepc_wmi *eeepc)
-{
- struct dentry *dent;
- int i;
-
- eeepc->debug.root = debugfs_create_dir(EEEPC_WMI_FILE, NULL);
- if (!eeepc->debug.root) {
- pr_err("failed to create debugfs directory");
- goto error_debugfs;
- }
-
- dent = debugfs_create_x32("dev_id", S_IRUGO|S_IWUSR,
- eeepc->debug.root, &eeepc->debug.dev_id);
- if (!dent)
- goto error_debugfs;
-
- dent = debugfs_create_x32("ctrl_param", S_IRUGO|S_IWUSR,
- eeepc->debug.root, &eeepc->debug.ctrl_param);
- if (!dent)
- goto error_debugfs;
-
- for (i = 0; i < ARRAY_SIZE(eeepc_wmi_debug_files); i++) {
- struct eeepc_wmi_debugfs_node *node = &eeepc_wmi_debug_files[i];
-
- node->eeepc = eeepc;
- dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO,
- eeepc->debug.root, node,
- &eeepc_wmi_debugfs_io_ops);
- if (!dent) {
- pr_err("failed to create debug file: %s\n", node->name);
- goto error_debugfs;
- }
- }
-
- return 0;
-
-error_debugfs:
- eeepc_wmi_debugfs_exit(eeepc);
- return -ENOMEM;
-}
-
-/*
- * WMI Driver
- */
-static void eeepc_dmi_check(struct eeepc_wmi *eeepc)
-{
- const char *model;
-
- model = dmi_get_system_info(DMI_PRODUCT_NAME);
- if (!model)
- return;
-
- /*
- * Whitelist for wlan hotplug
- *
- * Eeepc 1000H needs the current hotplug code to handle
- * Fn+F2 correctly. We may add other Eeepc here later, but
- * it seems that most of the laptops supported by eeepc-wmi
- * don't need to be on this list
- */
- if (strcmp(model, "1000H") == 0) {
- eeepc->hotplug_wireless = true;
- pr_info("wlan hotplug enabled\n");
- }
-}
-
-static int __init eeepc_wmi_add(struct platform_device *pdev)
-{
- struct eeepc_wmi *eeepc;
- acpi_status status;
- int err;
-
- eeepc = kzalloc(sizeof(struct eeepc_wmi), GFP_KERNEL);
- if (!eeepc)
- return -ENOMEM;
-
- eeepc->platform_device = pdev;
- platform_set_drvdata(eeepc->platform_device, eeepc);
-
- eeepc->hotplug_wireless = hotplug_wireless;
- eeepc_dmi_check(eeepc);
-
- err = eeepc_wmi_platform_init(eeepc);
- if (err)
- goto fail_platform;
-
- err = eeepc_wmi_input_init(eeepc);
- if (err)
- goto fail_input;
-
- err = eeepc_wmi_led_init(eeepc);
- if (err)
- goto fail_leds;
-
- err = eeepc_wmi_rfkill_init(eeepc);
- if (err)
- goto fail_rfkill;
-
- if (!acpi_video_backlight_support()) {
- err = eeepc_wmi_backlight_init(eeepc);
- if (err && err != -ENODEV)
- goto fail_backlight;
- } else
- pr_info("Backlight controlled by ACPI video driver\n");
-
- status = wmi_install_notify_handler(EEEPC_WMI_EVENT_GUID,
- eeepc_wmi_notify, eeepc);
- if (ACPI_FAILURE(status)) {
- pr_err("Unable to register notify handler - %d\n",
- status);
- err = -ENODEV;
- goto fail_wmi_handler;
- }
-
- err = eeepc_wmi_debugfs_init(eeepc);
- if (err)
- goto fail_debugfs;
-
- return 0;
-
-fail_debugfs:
- wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID);
-fail_wmi_handler:
- eeepc_wmi_backlight_exit(eeepc);
-fail_backlight:
- eeepc_wmi_rfkill_exit(eeepc);
-fail_rfkill:
- eeepc_wmi_led_exit(eeepc);
-fail_leds:
- eeepc_wmi_input_exit(eeepc);
-fail_input:
- eeepc_wmi_platform_exit(eeepc);
-fail_platform:
- kfree(eeepc);
- return err;
-}
-
-static int __exit eeepc_wmi_remove(struct platform_device *device)
-{
- struct eeepc_wmi *eeepc;
-
- eeepc = platform_get_drvdata(device);
- wmi_remove_notify_handler(EEEPC_WMI_EVENT_GUID);
- eeepc_wmi_backlight_exit(eeepc);
- eeepc_wmi_input_exit(eeepc);
- eeepc_wmi_led_exit(eeepc);
- eeepc_wmi_rfkill_exit(eeepc);
- eeepc_wmi_debugfs_exit(eeepc);
- eeepc_wmi_platform_exit(eeepc);
-
- kfree(eeepc);
- return 0;
-}
-
-/*
- * Platform driver - hibernate/resume callbacks
- */
-static int eeepc_hotk_thaw(struct device *device)
-{
- struct eeepc_wmi *eeepc = dev_get_drvdata(device);
-
- if (eeepc->wlan_rfkill) {
- bool wlan;
-
- /*
- * Work around bios bug - acpi _PTS turns off the wireless led
- * during suspend. Normally it restores it on resume, but
- * we should kick it ourselves in case hibernation is aborted.
- */
- wlan = eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WLAN);
- eeepc_wmi_set_devstate(EEEPC_WMI_DEVID_WLAN, wlan, NULL);
- }
-
- return 0;
-}
-
-static int eeepc_hotk_restore(struct device *device)
-{
- struct eeepc_wmi *eeepc = dev_get_drvdata(device);
- int bl;
-
- /* Refresh both wlan rfkill state and pci hotplug */
- if (eeepc->wlan_rfkill)
- eeepc_rfkill_hotplug(eeepc);
-
- if (eeepc->bluetooth_rfkill) {
- bl = !eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_BLUETOOTH);
- rfkill_set_sw_state(eeepc->bluetooth_rfkill, bl);
- }
- if (eeepc->wimax_rfkill) {
- bl = !eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WIMAX);
- rfkill_set_sw_state(eeepc->wimax_rfkill, bl);
- }
- if (eeepc->wwan3g_rfkill) {
- bl = !eeepc_wmi_get_devstate_simple(EEEPC_WMI_DEVID_WWAN3G);
- rfkill_set_sw_state(eeepc->wwan3g_rfkill, bl);
- }
-
- return 0;
-}
-
-static const struct dev_pm_ops eeepc_pm_ops = {
- .thaw = eeepc_hotk_thaw,
- .restore = eeepc_hotk_restore,
-};
-
-static struct platform_driver platform_driver = {
- .remove = __exit_p(eeepc_wmi_remove),
- .driver = {
- .name = EEEPC_WMI_FILE,
- .owner = THIS_MODULE,
- .pm = &eeepc_pm_ops,
- },
-};
-
-static acpi_status __init eeepc_wmi_parse_device(acpi_handle handle, u32 level,
- void *context, void **retval)
-{
- pr_warning("Found legacy ATKD device (%s)", EEEPC_ACPI_HID);
- *(bool *)context = true;
- return AE_CTRL_TERMINATE;
-}
-
-static int __init eeepc_wmi_check_atkd(void)
-{
- acpi_status status;
- bool found = false;
-
- status = acpi_get_devices(EEEPC_ACPI_HID, eeepc_wmi_parse_device,
- &found, NULL);
-
- if (ACPI_FAILURE(status) || !found)
- return 0;
- return -1;
-}
-
-static int __init eeepc_wmi_probe(struct platform_device *pdev)
-{
- if (!wmi_has_guid(EEEPC_WMI_EVENT_GUID) ||
- !wmi_has_guid(EEEPC_WMI_MGMT_GUID)) {
- pr_warning("No known WMI GUID found\n");
- return -ENODEV;
- }
-
- if (eeepc_wmi_check_atkd()) {
- pr_warning("WMI device present, but legacy ATKD device is also "
- "present and enabled.");
- pr_warning("You probably booted with acpi_osi=\"Linux\" or "
- "acpi_osi=\"!Windows 2009\"");
- pr_warning("Can't load eeepc-wmi, use default acpi_osi "
- "(preferred) or eeepc-laptop");
- return -ENODEV;
- }
-
- return eeepc_wmi_add(pdev);
-}
-
-static struct platform_device *platform_device;
-
-static int __init eeepc_wmi_init(void)
-{
- platform_device = platform_create_bundle(&platform_driver,
- eeepc_wmi_probe,
- NULL, 0, NULL, 0);
- if (IS_ERR(platform_device))
- return PTR_ERR(platform_device);
- return 0;
-}
-
-static void __exit eeepc_wmi_exit(void)
-{
- platform_device_unregister(platform_device);
- platform_driver_unregister(&platform_driver);
-}
-
-module_init(eeepc_wmi_init);
-module_exit(eeepc_wmi_exit);
--
1.7.4
--
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