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![Yurii Pavlovskyi](/assets/img/avatar_default.png)
The keyboard backlight is automatically disabled when the module is unloaded as it is exposed as a ledclass device. Change this behavior to ignore setting brightness when the device is in unloading state. Signed-off-by: Yurii Pavlovskyi <yurii.pavlovskyi@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2594 lines
63 KiB
C
2594 lines
63 KiB
C
/*
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* Asus PC WMI hotkey driver
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*
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* Copyright(C) 2010 Intel Corporation.
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* Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
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*
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* Portions based on wistron_btns.c:
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* Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
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* Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
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* Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/slab.h>
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#include <linux/input.h>
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#include <linux/input/sparse-keymap.h>
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#include <linux/fb.h>
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#include <linux/backlight.h>
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#include <linux/leds.h>
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#include <linux/rfkill.h>
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#include <linux/pci.h>
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#include <linux/pci_hotplug.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-sysfs.h>
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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#include <linux/platform_data/x86/asus-wmi.h>
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#include <linux/platform_device.h>
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#include <linux/thermal.h>
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#include <linux/acpi.h>
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#include <linux/dmi.h>
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#include <acpi/video.h>
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#include "asus-wmi.h"
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MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>, "
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"Yong Wang <yong.y.wang@intel.com>");
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MODULE_DESCRIPTION("Asus Generic WMI Driver");
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MODULE_LICENSE("GPL");
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#define to_asus_wmi_driver(pdrv) \
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(container_of((pdrv), struct asus_wmi_driver, platform_driver))
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#define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
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#define NOTIFY_BRNUP_MIN 0x11
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#define NOTIFY_BRNUP_MAX 0x1f
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#define NOTIFY_BRNDOWN_MIN 0x20
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#define NOTIFY_BRNDOWN_MAX 0x2e
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#define NOTIFY_FNLOCK_TOGGLE 0x4e
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#define NOTIFY_KBD_BRTUP 0xc4
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#define NOTIFY_KBD_BRTDWN 0xc5
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#define NOTIFY_KBD_BRTTOGGLE 0xc7
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#define NOTIFY_KBD_FBM 0x99
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#define ASUS_WMI_FNLOCK_BIOS_DISABLED BIT(0)
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#define ASUS_FAN_DESC "cpu_fan"
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#define ASUS_FAN_MFUN 0x13
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#define ASUS_FAN_SFUN_READ 0x06
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#define ASUS_FAN_SFUN_WRITE 0x07
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#define ASUS_FAN_CTRL_MANUAL 1
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#define ASUS_FAN_CTRL_AUTO 2
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#define ASUS_FAN_MODE_NORMAL 0
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#define ASUS_FAN_MODE_OVERBOOST 1
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#define ASUS_FAN_MODE_OVERBOOST_MASK 0x01
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#define ASUS_FAN_MODE_SILENT 2
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#define ASUS_FAN_MODE_SILENT_MASK 0x02
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#define ASUS_FAN_MODES_MASK 0x03
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#define USB_INTEL_XUSB2PR 0xD0
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#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31
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#define ASUS_ACPI_UID_ASUSWMI "ASUSWMI"
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#define ASUS_ACPI_UID_ATK "ATK"
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#define WMI_EVENT_QUEUE_SIZE 0x10
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#define WMI_EVENT_QUEUE_END 0x1
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#define WMI_EVENT_MASK 0xFFFF
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/* The WMI hotkey event value is always the same. */
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#define WMI_EVENT_VALUE_ATK 0xFF
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#define WMI_EVENT_MASK 0xFFFF
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static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
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static bool ashs_present(void)
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{
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int i = 0;
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while (ashs_ids[i]) {
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if (acpi_dev_found(ashs_ids[i++]))
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return true;
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}
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return false;
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}
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struct bios_args {
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u32 arg0;
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u32 arg1;
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u32 arg2; /* At least TUF Gaming series uses 3 dword input buffer. */
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} __packed;
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/*
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* Struct that's used for all methods called via AGFN. Naming is
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* identically to the AML code.
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*/
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struct agfn_args {
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u16 mfun; /* probably "Multi-function" to be called */
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u16 sfun; /* probably "Sub-function" to be called */
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u16 len; /* size of the hole struct, including subfunction fields */
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u8 stas; /* not used by now */
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u8 err; /* zero on success */
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} __packed;
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/* struct used for calling fan read and write methods */
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struct fan_args {
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struct agfn_args agfn; /* common fields */
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u8 fan; /* fan number: 0: set auto mode 1: 1st fan */
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u32 speed; /* read: RPM/100 - write: 0-255 */
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} __packed;
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/*
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* <platform>/ - debugfs root directory
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* dev_id - current dev_id
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* ctrl_param - current ctrl_param
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* method_id - current method_id
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* devs - call DEVS(dev_id, ctrl_param) and print result
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* dsts - call DSTS(dev_id) and print result
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* call - call method_id(dev_id, ctrl_param) and print result
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*/
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struct asus_wmi_debug {
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struct dentry *root;
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u32 method_id;
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u32 dev_id;
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u32 ctrl_param;
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};
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struct asus_rfkill {
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struct asus_wmi *asus;
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struct rfkill *rfkill;
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u32 dev_id;
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};
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struct asus_wmi {
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int dsts_id;
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int spec;
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int sfun;
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bool wmi_event_queue;
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struct input_dev *inputdev;
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struct backlight_device *backlight_device;
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struct platform_device *platform_device;
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struct led_classdev wlan_led;
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int wlan_led_wk;
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struct led_classdev tpd_led;
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int tpd_led_wk;
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struct led_classdev kbd_led;
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int kbd_led_wk;
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struct led_classdev lightbar_led;
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int lightbar_led_wk;
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struct workqueue_struct *led_workqueue;
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struct work_struct tpd_led_work;
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struct work_struct wlan_led_work;
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struct work_struct lightbar_led_work;
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struct asus_rfkill wlan;
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struct asus_rfkill bluetooth;
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struct asus_rfkill wimax;
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struct asus_rfkill wwan3g;
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struct asus_rfkill gps;
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struct asus_rfkill uwb;
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bool asus_hwmon_fan_manual_mode;
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int asus_hwmon_num_fans;
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int asus_hwmon_pwm;
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bool fan_mode_available;
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u8 fan_mode_mask;
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u8 fan_mode;
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struct hotplug_slot hotplug_slot;
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struct mutex hotplug_lock;
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struct mutex wmi_lock;
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struct workqueue_struct *hotplug_workqueue;
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struct work_struct hotplug_work;
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bool fnlock_locked;
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struct asus_wmi_debug debug;
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struct asus_wmi_driver *driver;
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};
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/* Input **********************************************************************/
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static int asus_wmi_input_init(struct asus_wmi *asus)
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{
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int err;
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asus->inputdev = input_allocate_device();
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if (!asus->inputdev)
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return -ENOMEM;
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asus->inputdev->name = asus->driver->input_name;
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asus->inputdev->phys = asus->driver->input_phys;
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asus->inputdev->id.bustype = BUS_HOST;
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asus->inputdev->dev.parent = &asus->platform_device->dev;
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set_bit(EV_REP, asus->inputdev->evbit);
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err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
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if (err)
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goto err_free_dev;
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err = input_register_device(asus->inputdev);
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if (err)
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goto err_free_dev;
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return 0;
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err_free_dev:
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input_free_device(asus->inputdev);
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return err;
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}
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static void asus_wmi_input_exit(struct asus_wmi *asus)
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{
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if (asus->inputdev)
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input_unregister_device(asus->inputdev);
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asus->inputdev = NULL;
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}
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/* WMI ************************************************************************/
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static int asus_wmi_evaluate_method3(u32 method_id,
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u32 arg0, u32 arg1, u32 arg2, u32 *retval)
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{
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struct bios_args args = {
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.arg0 = arg0,
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.arg1 = arg1,
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.arg2 = arg2,
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};
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struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
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struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
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acpi_status status;
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union acpi_object *obj;
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u32 tmp = 0;
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status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
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&input, &output);
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if (ACPI_FAILURE(status))
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return -EIO;
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obj = (union acpi_object *)output.pointer;
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if (obj && obj->type == ACPI_TYPE_INTEGER)
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tmp = (u32) obj->integer.value;
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if (retval)
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*retval = tmp;
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kfree(obj);
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if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
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return -ENODEV;
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return 0;
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}
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int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1, u32 *retval)
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{
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return asus_wmi_evaluate_method3(method_id, arg0, arg1, 0, retval);
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}
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EXPORT_SYMBOL_GPL(asus_wmi_evaluate_method);
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static int asus_wmi_evaluate_method_agfn(const struct acpi_buffer args)
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{
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struct acpi_buffer input;
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u64 phys_addr;
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u32 retval;
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u32 status = -1;
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/*
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* Copy to dma capable address otherwise memory corruption occurs as
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* bios has to be able to access it.
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*/
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input.pointer = kzalloc(args.length, GFP_DMA | GFP_KERNEL);
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input.length = args.length;
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if (!input.pointer)
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return -ENOMEM;
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phys_addr = virt_to_phys(input.pointer);
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memcpy(input.pointer, args.pointer, args.length);
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status = asus_wmi_evaluate_method(ASUS_WMI_METHODID_AGFN,
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phys_addr, 0, &retval);
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if (!status)
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memcpy(args.pointer, input.pointer, args.length);
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kfree(input.pointer);
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if (status)
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return -ENXIO;
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return retval;
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}
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static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
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{
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return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
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}
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static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
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u32 *retval)
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{
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return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
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ctrl_param, retval);
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}
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/* Helper for special devices with magic return codes */
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static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
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u32 dev_id, u32 mask)
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{
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u32 retval = 0;
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int err;
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err = asus_wmi_get_devstate(asus, dev_id, &retval);
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if (err < 0)
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return err;
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if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
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return -ENODEV;
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if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
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if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
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return -ENODEV;
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}
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return retval & mask;
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}
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static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
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{
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return asus_wmi_get_devstate_bits(asus, dev_id,
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ASUS_WMI_DSTS_STATUS_BIT);
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}
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/* LEDs ***********************************************************************/
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/*
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* These functions actually update the LED's, and are called from a
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* workqueue. By doing this as separate work rather than when the LED
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* subsystem asks, we avoid messing with the Asus ACPI stuff during a
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* potentially bad time, such as a timer interrupt.
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*/
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static void tpd_led_update(struct work_struct *work)
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{
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int ctrl_param;
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struct asus_wmi *asus;
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asus = container_of(work, struct asus_wmi, tpd_led_work);
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ctrl_param = asus->tpd_led_wk;
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asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
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}
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static void tpd_led_set(struct led_classdev *led_cdev,
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enum led_brightness value)
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{
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struct asus_wmi *asus;
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asus = container_of(led_cdev, struct asus_wmi, tpd_led);
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asus->tpd_led_wk = !!value;
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queue_work(asus->led_workqueue, &asus->tpd_led_work);
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}
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static int read_tpd_led_state(struct asus_wmi *asus)
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{
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return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
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}
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static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
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{
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struct asus_wmi *asus;
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asus = container_of(led_cdev, struct asus_wmi, tpd_led);
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return read_tpd_led_state(asus);
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}
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static void kbd_led_update(struct asus_wmi *asus)
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{
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int ctrl_param = 0;
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/*
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* bits 0-2: level
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* bit 7: light on/off
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*/
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if (asus->kbd_led_wk > 0)
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ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
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asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
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}
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static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
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{
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int retval;
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/*
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* bits 0-2: level
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* bit 7: light on/off
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* bit 8-10: environment (0: dark, 1: normal, 2: light)
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* bit 17: status unknown
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*/
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retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
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0xFFFF);
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/* Unknown status is considered as off */
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if (retval == 0x8000)
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retval = 0;
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if (retval >= 0) {
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if (level)
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*level = retval & 0x7F;
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if (env)
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*env = (retval >> 8) & 0x7F;
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retval = 0;
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}
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return retval;
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}
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static void do_kbd_led_set(struct led_classdev *led_cdev, int value)
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{
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struct asus_wmi *asus;
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int max_level;
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asus = container_of(led_cdev, struct asus_wmi, kbd_led);
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max_level = asus->kbd_led.max_brightness;
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if (value > max_level)
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value = max_level;
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else if (value < 0)
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value = 0;
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asus->kbd_led_wk = value;
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kbd_led_update(asus);
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}
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static void kbd_led_set(struct led_classdev *led_cdev,
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enum led_brightness value)
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{
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/* Prevent disabling keyboard backlight on module unregister */
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if (led_cdev->flags & LED_UNREGISTERING)
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return;
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do_kbd_led_set(led_cdev, value);
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}
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static void kbd_led_set_by_kbd(struct asus_wmi *asus, enum led_brightness value)
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{
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struct led_classdev *led_cdev = &asus->kbd_led;
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do_kbd_led_set(led_cdev, value);
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led_classdev_notify_brightness_hw_changed(led_cdev, asus->kbd_led_wk);
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}
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|
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static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
|
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{
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struct asus_wmi *asus;
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int retval, value;
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asus = container_of(led_cdev, struct asus_wmi, kbd_led);
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retval = kbd_led_read(asus, &value, NULL);
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|
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if (retval < 0)
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return retval;
|
|
|
|
return value;
|
|
}
|
|
|
|
static int wlan_led_unknown_state(struct asus_wmi *asus)
|
|
{
|
|
u32 result;
|
|
|
|
asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
|
|
|
|
return result & ASUS_WMI_DSTS_UNKNOWN_BIT;
|
|
}
|
|
|
|
static int wlan_led_presence(struct asus_wmi *asus)
|
|
{
|
|
u32 result;
|
|
|
|
asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
|
|
|
|
return result & ASUS_WMI_DSTS_PRESENCE_BIT;
|
|
}
|
|
|
|
static void wlan_led_update(struct work_struct *work)
|
|
{
|
|
int ctrl_param;
|
|
struct asus_wmi *asus;
|
|
|
|
asus = container_of(work, struct asus_wmi, wlan_led_work);
|
|
|
|
ctrl_param = asus->wlan_led_wk;
|
|
asus_wmi_set_devstate(ASUS_WMI_DEVID_WIRELESS_LED, ctrl_param, NULL);
|
|
}
|
|
|
|
static void wlan_led_set(struct led_classdev *led_cdev,
|
|
enum led_brightness value)
|
|
{
|
|
struct asus_wmi *asus;
|
|
|
|
asus = container_of(led_cdev, struct asus_wmi, wlan_led);
|
|
|
|
asus->wlan_led_wk = !!value;
|
|
queue_work(asus->led_workqueue, &asus->wlan_led_work);
|
|
}
|
|
|
|
static enum led_brightness wlan_led_get(struct led_classdev *led_cdev)
|
|
{
|
|
struct asus_wmi *asus;
|
|
u32 result;
|
|
|
|
asus = container_of(led_cdev, struct asus_wmi, wlan_led);
|
|
asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WIRELESS_LED, &result);
|
|
|
|
return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
|
|
}
|
|
|
|
static void lightbar_led_update(struct work_struct *work)
|
|
{
|
|
struct asus_wmi *asus;
|
|
int ctrl_param;
|
|
|
|
asus = container_of(work, struct asus_wmi, lightbar_led_work);
|
|
|
|
ctrl_param = asus->lightbar_led_wk;
|
|
asus_wmi_set_devstate(ASUS_WMI_DEVID_LIGHTBAR, ctrl_param, NULL);
|
|
}
|
|
|
|
static void lightbar_led_set(struct led_classdev *led_cdev,
|
|
enum led_brightness value)
|
|
{
|
|
struct asus_wmi *asus;
|
|
|
|
asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
|
|
|
|
asus->lightbar_led_wk = !!value;
|
|
queue_work(asus->led_workqueue, &asus->lightbar_led_work);
|
|
}
|
|
|
|
static enum led_brightness lightbar_led_get(struct led_classdev *led_cdev)
|
|
{
|
|
struct asus_wmi *asus;
|
|
u32 result;
|
|
|
|
asus = container_of(led_cdev, struct asus_wmi, lightbar_led);
|
|
asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_LIGHTBAR, &result);
|
|
|
|
return result & ASUS_WMI_DSTS_LIGHTBAR_MASK;
|
|
}
|
|
|
|
static int lightbar_led_presence(struct asus_wmi *asus)
|
|
{
|
|
u32 result;
|
|
|
|
asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_LIGHTBAR, &result);
|
|
|
|
return result & ASUS_WMI_DSTS_PRESENCE_BIT;
|
|
}
|
|
|
|
static void asus_wmi_led_exit(struct asus_wmi *asus)
|
|
{
|
|
if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
|
|
led_classdev_unregister(&asus->kbd_led);
|
|
if (!IS_ERR_OR_NULL(asus->tpd_led.dev))
|
|
led_classdev_unregister(&asus->tpd_led);
|
|
if (!IS_ERR_OR_NULL(asus->wlan_led.dev))
|
|
led_classdev_unregister(&asus->wlan_led);
|
|
if (!IS_ERR_OR_NULL(asus->lightbar_led.dev))
|
|
led_classdev_unregister(&asus->lightbar_led);
|
|
if (asus->led_workqueue)
|
|
destroy_workqueue(asus->led_workqueue);
|
|
}
|
|
|
|
static int asus_wmi_led_init(struct asus_wmi *asus)
|
|
{
|
|
int rv = 0, led_val;
|
|
|
|
asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
|
|
if (!asus->led_workqueue)
|
|
return -ENOMEM;
|
|
|
|
if (read_tpd_led_state(asus) >= 0) {
|
|
INIT_WORK(&asus->tpd_led_work, tpd_led_update);
|
|
|
|
asus->tpd_led.name = "asus::touchpad";
|
|
asus->tpd_led.brightness_set = tpd_led_set;
|
|
asus->tpd_led.brightness_get = tpd_led_get;
|
|
asus->tpd_led.max_brightness = 1;
|
|
|
|
rv = led_classdev_register(&asus->platform_device->dev,
|
|
&asus->tpd_led);
|
|
if (rv)
|
|
goto error;
|
|
}
|
|
|
|
if (!kbd_led_read(asus, &led_val, NULL)) {
|
|
asus->kbd_led_wk = led_val;
|
|
asus->kbd_led.name = "asus::kbd_backlight";
|
|
asus->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
|
|
asus->kbd_led.brightness_set = kbd_led_set;
|
|
asus->kbd_led.brightness_get = kbd_led_get;
|
|
asus->kbd_led.max_brightness = 3;
|
|
|
|
rv = led_classdev_register(&asus->platform_device->dev,
|
|
&asus->kbd_led);
|
|
if (rv)
|
|
goto error;
|
|
}
|
|
|
|
if (wlan_led_presence(asus) && (asus->driver->quirks->wapf > 0)) {
|
|
INIT_WORK(&asus->wlan_led_work, wlan_led_update);
|
|
|
|
asus->wlan_led.name = "asus::wlan";
|
|
asus->wlan_led.brightness_set = wlan_led_set;
|
|
if (!wlan_led_unknown_state(asus))
|
|
asus->wlan_led.brightness_get = wlan_led_get;
|
|
asus->wlan_led.flags = LED_CORE_SUSPENDRESUME;
|
|
asus->wlan_led.max_brightness = 1;
|
|
asus->wlan_led.default_trigger = "asus-wlan";
|
|
|
|
rv = led_classdev_register(&asus->platform_device->dev,
|
|
&asus->wlan_led);
|
|
if (rv)
|
|
goto error;
|
|
}
|
|
|
|
if (lightbar_led_presence(asus)) {
|
|
INIT_WORK(&asus->lightbar_led_work, lightbar_led_update);
|
|
|
|
asus->lightbar_led.name = "asus::lightbar";
|
|
asus->lightbar_led.brightness_set = lightbar_led_set;
|
|
asus->lightbar_led.brightness_get = lightbar_led_get;
|
|
asus->lightbar_led.max_brightness = 1;
|
|
|
|
rv = led_classdev_register(&asus->platform_device->dev,
|
|
&asus->lightbar_led);
|
|
}
|
|
|
|
error:
|
|
if (rv)
|
|
asus_wmi_led_exit(asus);
|
|
|
|
return rv;
|
|
}
|
|
|
|
/* RF *************************************************************************/
|
|
|
|
/*
|
|
* PCI hotplug (for wlan rfkill)
|
|
*/
|
|
static bool asus_wlan_rfkill_blocked(struct asus_wmi *asus)
|
|
{
|
|
int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
|
|
|
|
if (result < 0)
|
|
return false;
|
|
return !result;
|
|
}
|
|
|
|
static void asus_rfkill_hotplug(struct asus_wmi *asus)
|
|
{
|
|
struct pci_dev *dev;
|
|
struct pci_bus *bus;
|
|
bool blocked;
|
|
bool absent;
|
|
u32 l;
|
|
|
|
mutex_lock(&asus->wmi_lock);
|
|
blocked = asus_wlan_rfkill_blocked(asus);
|
|
mutex_unlock(&asus->wmi_lock);
|
|
|
|
mutex_lock(&asus->hotplug_lock);
|
|
pci_lock_rescan_remove();
|
|
|
|
if (asus->wlan.rfkill)
|
|
rfkill_set_sw_state(asus->wlan.rfkill, blocked);
|
|
|
|
if (asus->hotplug_slot.ops) {
|
|
bus = pci_find_bus(0, 1);
|
|
if (!bus) {
|
|
pr_warn("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_warn("BIOS says wireless lan is %s, "
|
|
"but the pci device is %s\n",
|
|
blocked ? "blocked" : "unblocked",
|
|
absent ? "absent" : "present");
|
|
pr_warn("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);
|
|
pci_bus_add_device(dev);
|
|
}
|
|
} else {
|
|
dev = pci_get_slot(bus, 0);
|
|
if (dev) {
|
|
pci_stop_and_remove_bus_device(dev);
|
|
pci_dev_put(dev);
|
|
}
|
|
}
|
|
}
|
|
|
|
out_unlock:
|
|
pci_unlock_rescan_remove();
|
|
mutex_unlock(&asus->hotplug_lock);
|
|
}
|
|
|
|
static void asus_rfkill_notify(acpi_handle handle, u32 event, void *data)
|
|
{
|
|
struct asus_wmi *asus = data;
|
|
|
|
if (event != ACPI_NOTIFY_BUS_CHECK)
|
|
return;
|
|
|
|
/*
|
|
* We can't call directly asus_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 asus_rfkill_hotplug
|
|
* call later, in a safer context.
|
|
*/
|
|
queue_work(asus->hotplug_workqueue, &asus->hotplug_work);
|
|
}
|
|
|
|
static int asus_register_rfkill_notifier(struct asus_wmi *asus, 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,
|
|
asus_rfkill_notify, asus);
|
|
if (ACPI_FAILURE(status))
|
|
pr_warn("Failed to register notify on %s\n", node);
|
|
} else
|
|
return -ENODEV;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void asus_unregister_rfkill_notifier(struct asus_wmi *asus, 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,
|
|
asus_rfkill_notify);
|
|
if (ACPI_FAILURE(status))
|
|
pr_err("Error removing rfkill notify handler %s\n",
|
|
node);
|
|
}
|
|
}
|
|
|
|
static int asus_get_adapter_status(struct hotplug_slot *hotplug_slot,
|
|
u8 *value)
|
|
{
|
|
struct asus_wmi *asus = container_of(hotplug_slot,
|
|
struct asus_wmi, hotplug_slot);
|
|
int result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
|
|
|
|
if (result < 0)
|
|
return result;
|
|
|
|
*value = !!result;
|
|
return 0;
|
|
}
|
|
|
|
static const struct hotplug_slot_ops asus_hotplug_slot_ops = {
|
|
.get_adapter_status = asus_get_adapter_status,
|
|
.get_power_status = asus_get_adapter_status,
|
|
};
|
|
|
|
static void asus_hotplug_work(struct work_struct *work)
|
|
{
|
|
struct asus_wmi *asus;
|
|
|
|
asus = container_of(work, struct asus_wmi, hotplug_work);
|
|
asus_rfkill_hotplug(asus);
|
|
}
|
|
|
|
static int asus_setup_pci_hotplug(struct asus_wmi *asus)
|
|
{
|
|
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;
|
|
}
|
|
|
|
asus->hotplug_workqueue =
|
|
create_singlethread_workqueue("hotplug_workqueue");
|
|
if (!asus->hotplug_workqueue)
|
|
goto error_workqueue;
|
|
|
|
INIT_WORK(&asus->hotplug_work, asus_hotplug_work);
|
|
|
|
asus->hotplug_slot.ops = &asus_hotplug_slot_ops;
|
|
|
|
ret = pci_hp_register(&asus->hotplug_slot, bus, 0, "asus-wifi");
|
|
if (ret) {
|
|
pr_err("Unable to register hotplug slot - %d\n", ret);
|
|
goto error_register;
|
|
}
|
|
|
|
return 0;
|
|
|
|
error_register:
|
|
asus->hotplug_slot.ops = NULL;
|
|
destroy_workqueue(asus->hotplug_workqueue);
|
|
error_workqueue:
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Rfkill devices
|
|
*/
|
|
static int asus_rfkill_set(void *data, bool blocked)
|
|
{
|
|
struct asus_rfkill *priv = data;
|
|
u32 ctrl_param = !blocked;
|
|
u32 dev_id = priv->dev_id;
|
|
|
|
/*
|
|
* If the user bit is set, BIOS can't set and record the wlan status,
|
|
* it will report the value read from id ASUS_WMI_DEVID_WLAN_LED
|
|
* while we query the wlan status through WMI(ASUS_WMI_DEVID_WLAN).
|
|
* So, we have to record wlan status in id ASUS_WMI_DEVID_WLAN_LED
|
|
* while setting the wlan status through WMI.
|
|
* This is also the behavior that windows app will do.
|
|
*/
|
|
if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
|
|
priv->asus->driver->wlan_ctrl_by_user)
|
|
dev_id = ASUS_WMI_DEVID_WLAN_LED;
|
|
|
|
return asus_wmi_set_devstate(dev_id, ctrl_param, NULL);
|
|
}
|
|
|
|
static void asus_rfkill_query(struct rfkill *rfkill, void *data)
|
|
{
|
|
struct asus_rfkill *priv = data;
|
|
int result;
|
|
|
|
result = asus_wmi_get_devstate_simple(priv->asus, priv->dev_id);
|
|
|
|
if (result < 0)
|
|
return;
|
|
|
|
rfkill_set_sw_state(priv->rfkill, !result);
|
|
}
|
|
|
|
static int asus_rfkill_wlan_set(void *data, bool blocked)
|
|
{
|
|
struct asus_rfkill *priv = data;
|
|
struct asus_wmi *asus = priv->asus;
|
|
int ret;
|
|
|
|
/*
|
|
* This handler is enabled only if hotplug is enabled.
|
|
* In this case, the asus_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(&asus->wmi_lock);
|
|
ret = asus_rfkill_set(data, blocked);
|
|
mutex_unlock(&asus->wmi_lock);
|
|
return ret;
|
|
}
|
|
|
|
static const struct rfkill_ops asus_rfkill_wlan_ops = {
|
|
.set_block = asus_rfkill_wlan_set,
|
|
.query = asus_rfkill_query,
|
|
};
|
|
|
|
static const struct rfkill_ops asus_rfkill_ops = {
|
|
.set_block = asus_rfkill_set,
|
|
.query = asus_rfkill_query,
|
|
};
|
|
|
|
static int asus_new_rfkill(struct asus_wmi *asus,
|
|
struct asus_rfkill *arfkill,
|
|
const char *name, enum rfkill_type type, int dev_id)
|
|
{
|
|
int result = asus_wmi_get_devstate_simple(asus, dev_id);
|
|
struct rfkill **rfkill = &arfkill->rfkill;
|
|
|
|
if (result < 0)
|
|
return result;
|
|
|
|
arfkill->dev_id = dev_id;
|
|
arfkill->asus = asus;
|
|
|
|
if (dev_id == ASUS_WMI_DEVID_WLAN &&
|
|
asus->driver->quirks->hotplug_wireless)
|
|
*rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
|
|
&asus_rfkill_wlan_ops, arfkill);
|
|
else
|
|
*rfkill = rfkill_alloc(name, &asus->platform_device->dev, type,
|
|
&asus_rfkill_ops, arfkill);
|
|
|
|
if (!*rfkill)
|
|
return -EINVAL;
|
|
|
|
if ((dev_id == ASUS_WMI_DEVID_WLAN) &&
|
|
(asus->driver->quirks->wapf > 0))
|
|
rfkill_set_led_trigger_name(*rfkill, "asus-wlan");
|
|
|
|
rfkill_init_sw_state(*rfkill, !result);
|
|
result = rfkill_register(*rfkill);
|
|
if (result) {
|
|
rfkill_destroy(*rfkill);
|
|
*rfkill = NULL;
|
|
return result;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void asus_wmi_rfkill_exit(struct asus_wmi *asus)
|
|
{
|
|
if (asus->driver->wlan_ctrl_by_user && ashs_present())
|
|
return;
|
|
|
|
asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
|
|
asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
|
|
asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
|
|
if (asus->wlan.rfkill) {
|
|
rfkill_unregister(asus->wlan.rfkill);
|
|
rfkill_destroy(asus->wlan.rfkill);
|
|
asus->wlan.rfkill = NULL;
|
|
}
|
|
/*
|
|
* Refresh pci hotplug in case the rfkill state was changed after
|
|
* asus_unregister_rfkill_notifier()
|
|
*/
|
|
asus_rfkill_hotplug(asus);
|
|
if (asus->hotplug_slot.ops)
|
|
pci_hp_deregister(&asus->hotplug_slot);
|
|
if (asus->hotplug_workqueue)
|
|
destroy_workqueue(asus->hotplug_workqueue);
|
|
|
|
if (asus->bluetooth.rfkill) {
|
|
rfkill_unregister(asus->bluetooth.rfkill);
|
|
rfkill_destroy(asus->bluetooth.rfkill);
|
|
asus->bluetooth.rfkill = NULL;
|
|
}
|
|
if (asus->wimax.rfkill) {
|
|
rfkill_unregister(asus->wimax.rfkill);
|
|
rfkill_destroy(asus->wimax.rfkill);
|
|
asus->wimax.rfkill = NULL;
|
|
}
|
|
if (asus->wwan3g.rfkill) {
|
|
rfkill_unregister(asus->wwan3g.rfkill);
|
|
rfkill_destroy(asus->wwan3g.rfkill);
|
|
asus->wwan3g.rfkill = NULL;
|
|
}
|
|
if (asus->gps.rfkill) {
|
|
rfkill_unregister(asus->gps.rfkill);
|
|
rfkill_destroy(asus->gps.rfkill);
|
|
asus->gps.rfkill = NULL;
|
|
}
|
|
if (asus->uwb.rfkill) {
|
|
rfkill_unregister(asus->uwb.rfkill);
|
|
rfkill_destroy(asus->uwb.rfkill);
|
|
asus->uwb.rfkill = NULL;
|
|
}
|
|
}
|
|
|
|
static int asus_wmi_rfkill_init(struct asus_wmi *asus)
|
|
{
|
|
int result = 0;
|
|
|
|
mutex_init(&asus->hotplug_lock);
|
|
mutex_init(&asus->wmi_lock);
|
|
|
|
result = asus_new_rfkill(asus, &asus->wlan, "asus-wlan",
|
|
RFKILL_TYPE_WLAN, ASUS_WMI_DEVID_WLAN);
|
|
|
|
if (result && result != -ENODEV)
|
|
goto exit;
|
|
|
|
result = asus_new_rfkill(asus, &asus->bluetooth,
|
|
"asus-bluetooth", RFKILL_TYPE_BLUETOOTH,
|
|
ASUS_WMI_DEVID_BLUETOOTH);
|
|
|
|
if (result && result != -ENODEV)
|
|
goto exit;
|
|
|
|
result = asus_new_rfkill(asus, &asus->wimax, "asus-wimax",
|
|
RFKILL_TYPE_WIMAX, ASUS_WMI_DEVID_WIMAX);
|
|
|
|
if (result && result != -ENODEV)
|
|
goto exit;
|
|
|
|
result = asus_new_rfkill(asus, &asus->wwan3g, "asus-wwan3g",
|
|
RFKILL_TYPE_WWAN, ASUS_WMI_DEVID_WWAN3G);
|
|
|
|
if (result && result != -ENODEV)
|
|
goto exit;
|
|
|
|
result = asus_new_rfkill(asus, &asus->gps, "asus-gps",
|
|
RFKILL_TYPE_GPS, ASUS_WMI_DEVID_GPS);
|
|
|
|
if (result && result != -ENODEV)
|
|
goto exit;
|
|
|
|
result = asus_new_rfkill(asus, &asus->uwb, "asus-uwb",
|
|
RFKILL_TYPE_UWB, ASUS_WMI_DEVID_UWB);
|
|
|
|
if (result && result != -ENODEV)
|
|
goto exit;
|
|
|
|
if (!asus->driver->quirks->hotplug_wireless)
|
|
goto exit;
|
|
|
|
result = asus_setup_pci_hotplug(asus);
|
|
/*
|
|
* If we get -EBUSY then something else is handling the PCI hotplug -
|
|
* don't fail in this case
|
|
*/
|
|
if (result == -EBUSY)
|
|
result = 0;
|
|
|
|
asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P5");
|
|
asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P6");
|
|
asus_register_rfkill_notifier(asus, "\\_SB.PCI0.P0P7");
|
|
/*
|
|
* Refresh pci hotplug in case the rfkill state was changed during
|
|
* setup.
|
|
*/
|
|
asus_rfkill_hotplug(asus);
|
|
|
|
exit:
|
|
if (result && result != -ENODEV)
|
|
asus_wmi_rfkill_exit(asus);
|
|
|
|
if (result == -ENODEV)
|
|
result = 0;
|
|
|
|
return result;
|
|
}
|
|
|
|
/* Quirks *********************************************************************/
|
|
|
|
static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
|
|
{
|
|
struct pci_dev *xhci_pdev;
|
|
u32 orig_ports_available;
|
|
u32 ports_available = asus->driver->quirks->xusb2pr;
|
|
|
|
xhci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
|
|
PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI,
|
|
NULL);
|
|
|
|
if (!xhci_pdev)
|
|
return;
|
|
|
|
pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
|
|
&orig_ports_available);
|
|
|
|
pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR,
|
|
cpu_to_le32(ports_available));
|
|
|
|
pr_info("set USB_INTEL_XUSB2PR old: 0x%04x, new: 0x%04x\n",
|
|
orig_ports_available, ports_available);
|
|
}
|
|
|
|
/*
|
|
* Some devices dont support or have borcken get_als method
|
|
* but still support set method.
|
|
*/
|
|
static void asus_wmi_set_als(void)
|
|
{
|
|
asus_wmi_set_devstate(ASUS_WMI_DEVID_ALS_ENABLE, 1, NULL);
|
|
}
|
|
|
|
/* Hwmon device ***************************************************************/
|
|
|
|
static int asus_hwmon_agfn_fan_speed_read(struct asus_wmi *asus, int fan,
|
|
int *speed)
|
|
{
|
|
struct fan_args args = {
|
|
.agfn.len = sizeof(args),
|
|
.agfn.mfun = ASUS_FAN_MFUN,
|
|
.agfn.sfun = ASUS_FAN_SFUN_READ,
|
|
.fan = fan,
|
|
.speed = 0,
|
|
};
|
|
struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
|
|
int status;
|
|
|
|
if (fan != 1)
|
|
return -EINVAL;
|
|
|
|
status = asus_wmi_evaluate_method_agfn(input);
|
|
|
|
if (status || args.agfn.err)
|
|
return -ENXIO;
|
|
|
|
if (speed)
|
|
*speed = args.speed;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int asus_hwmon_agfn_fan_speed_write(struct asus_wmi *asus, int fan,
|
|
int *speed)
|
|
{
|
|
struct fan_args args = {
|
|
.agfn.len = sizeof(args),
|
|
.agfn.mfun = ASUS_FAN_MFUN,
|
|
.agfn.sfun = ASUS_FAN_SFUN_WRITE,
|
|
.fan = fan,
|
|
.speed = speed ? *speed : 0,
|
|
};
|
|
struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
|
|
int status;
|
|
|
|
/* 1: for setting 1st fan's speed 0: setting auto mode */
|
|
if (fan != 1 && fan != 0)
|
|
return -EINVAL;
|
|
|
|
status = asus_wmi_evaluate_method_agfn(input);
|
|
|
|
if (status || args.agfn.err)
|
|
return -ENXIO;
|
|
|
|
if (speed && fan == 1)
|
|
asus->asus_hwmon_pwm = *speed;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Check if we can read the speed of one fan. If true we assume we can also
|
|
* control it.
|
|
*/
|
|
static int asus_hwmon_get_fan_number(struct asus_wmi *asus, int *num_fans)
|
|
{
|
|
int status;
|
|
int speed = 0;
|
|
|
|
*num_fans = 0;
|
|
|
|
status = asus_hwmon_agfn_fan_speed_read(asus, 1, &speed);
|
|
if (!status)
|
|
*num_fans = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int asus_hwmon_fan_set_auto(struct asus_wmi *asus)
|
|
{
|
|
int status;
|
|
|
|
status = asus_hwmon_agfn_fan_speed_write(asus, 0, NULL);
|
|
if (status)
|
|
return -ENXIO;
|
|
|
|
asus->asus_hwmon_fan_manual_mode = false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int asus_hwmon_fan_rpm_show(struct device *dev, int fan)
|
|
{
|
|
struct asus_wmi *asus = dev_get_drvdata(dev);
|
|
int value;
|
|
int ret;
|
|
|
|
/* no speed readable on manual mode */
|
|
if (asus->asus_hwmon_fan_manual_mode)
|
|
return -ENXIO;
|
|
|
|
ret = asus_hwmon_agfn_fan_speed_read(asus, fan+1, &value);
|
|
if (ret) {
|
|
pr_warn("reading fan speed failed: %d\n", ret);
|
|
return -ENXIO;
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
static void asus_hwmon_pwm_show(struct asus_wmi *asus, int fan, int *value)
|
|
{
|
|
int err;
|
|
|
|
if (asus->asus_hwmon_pwm >= 0) {
|
|
*value = asus->asus_hwmon_pwm;
|
|
return;
|
|
}
|
|
|
|
err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, value);
|
|
if (err < 0)
|
|
return;
|
|
|
|
*value &= 0xFF;
|
|
|
|
if (*value == 1) /* Low Speed */
|
|
*value = 85;
|
|
else if (*value == 2)
|
|
*value = 170;
|
|
else if (*value == 3)
|
|
*value = 255;
|
|
else if (*value) {
|
|
pr_err("Unknown fan speed %#x\n", *value);
|
|
*value = -1;
|
|
}
|
|
}
|
|
|
|
static ssize_t pwm1_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct asus_wmi *asus = dev_get_drvdata(dev);
|
|
int value;
|
|
|
|
asus_hwmon_pwm_show(asus, 0, &value);
|
|
|
|
return sprintf(buf, "%d\n", value);
|
|
}
|
|
|
|
static ssize_t pwm1_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count) {
|
|
struct asus_wmi *asus = dev_get_drvdata(dev);
|
|
int value;
|
|
int state;
|
|
int ret;
|
|
|
|
ret = kstrtouint(buf, 10, &value);
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
value = clamp(value, 0, 255);
|
|
|
|
state = asus_hwmon_agfn_fan_speed_write(asus, 1, &value);
|
|
if (state)
|
|
pr_warn("Setting fan speed failed: %d\n", state);
|
|
else
|
|
asus->asus_hwmon_fan_manual_mode = true;
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t fan1_input_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int value = asus_hwmon_fan_rpm_show(dev, 0);
|
|
|
|
return sprintf(buf, "%d\n", value < 0 ? -1 : value*100);
|
|
|
|
}
|
|
|
|
static ssize_t pwm1_enable_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct asus_wmi *asus = dev_get_drvdata(dev);
|
|
|
|
if (asus->asus_hwmon_fan_manual_mode)
|
|
return sprintf(buf, "%d\n", ASUS_FAN_CTRL_MANUAL);
|
|
|
|
return sprintf(buf, "%d\n", ASUS_FAN_CTRL_AUTO);
|
|
}
|
|
|
|
static ssize_t pwm1_enable_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct asus_wmi *asus = dev_get_drvdata(dev);
|
|
int status = 0;
|
|
int state;
|
|
int ret;
|
|
|
|
ret = kstrtouint(buf, 10, &state);
|
|
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (state == ASUS_FAN_CTRL_MANUAL)
|
|
asus->asus_hwmon_fan_manual_mode = true;
|
|
else
|
|
status = asus_hwmon_fan_set_auto(asus);
|
|
|
|
if (status)
|
|
return status;
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t fan1_label_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return sprintf(buf, "%s\n", ASUS_FAN_DESC);
|
|
}
|
|
|
|
static ssize_t asus_hwmon_temp1(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct asus_wmi *asus = dev_get_drvdata(dev);
|
|
u32 value;
|
|
int err;
|
|
|
|
err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_THERMAL_CTRL, &value);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
value = DECI_KELVIN_TO_CELSIUS((value & 0xFFFF)) * 1000;
|
|
|
|
return sprintf(buf, "%d\n", value);
|
|
}
|
|
|
|
/* Fan1 */
|
|
static DEVICE_ATTR_RW(pwm1);
|
|
static DEVICE_ATTR_RW(pwm1_enable);
|
|
static DEVICE_ATTR_RO(fan1_input);
|
|
static DEVICE_ATTR_RO(fan1_label);
|
|
|
|
/* Temperature */
|
|
static DEVICE_ATTR(temp1_input, S_IRUGO, asus_hwmon_temp1, NULL);
|
|
|
|
static struct attribute *hwmon_attributes[] = {
|
|
&dev_attr_pwm1.attr,
|
|
&dev_attr_pwm1_enable.attr,
|
|
&dev_attr_fan1_input.attr,
|
|
&dev_attr_fan1_label.attr,
|
|
|
|
&dev_attr_temp1_input.attr,
|
|
NULL
|
|
};
|
|
|
|
static umode_t asus_hwmon_sysfs_is_visible(struct kobject *kobj,
|
|
struct attribute *attr, int idx)
|
|
{
|
|
struct device *dev = container_of(kobj, struct device, kobj);
|
|
struct platform_device *pdev = to_platform_device(dev->parent);
|
|
struct asus_wmi *asus = platform_get_drvdata(pdev);
|
|
int dev_id = -1;
|
|
int fan_attr = -1;
|
|
u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
|
|
bool ok = true;
|
|
|
|
if (attr == &dev_attr_pwm1.attr)
|
|
dev_id = ASUS_WMI_DEVID_FAN_CTRL;
|
|
else if (attr == &dev_attr_temp1_input.attr)
|
|
dev_id = ASUS_WMI_DEVID_THERMAL_CTRL;
|
|
|
|
|
|
if (attr == &dev_attr_fan1_input.attr
|
|
|| attr == &dev_attr_fan1_label.attr
|
|
|| attr == &dev_attr_pwm1.attr
|
|
|| attr == &dev_attr_pwm1_enable.attr) {
|
|
fan_attr = 1;
|
|
}
|
|
|
|
if (dev_id != -1) {
|
|
int err = asus_wmi_get_devstate(asus, dev_id, &value);
|
|
|
|
if (err < 0 && fan_attr == -1)
|
|
return 0; /* can't return negative here */
|
|
}
|
|
|
|
if (dev_id == ASUS_WMI_DEVID_FAN_CTRL) {
|
|
/*
|
|
* We need to find a better way, probably using sfun,
|
|
* bits or spec ...
|
|
* Currently we disable it if:
|
|
* - ASUS_WMI_UNSUPPORTED_METHOD is returned
|
|
* - reverved bits are non-zero
|
|
* - sfun and presence bit are not set
|
|
*/
|
|
if (value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
|
|
|| (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)))
|
|
ok = false;
|
|
else
|
|
ok = fan_attr <= asus->asus_hwmon_num_fans;
|
|
} else if (dev_id == ASUS_WMI_DEVID_THERMAL_CTRL) {
|
|
/*
|
|
* If the temperature value in deci-Kelvin is near the absolute
|
|
* zero temperature, something is clearly wrong
|
|
*/
|
|
if (value == 0 || value == 1)
|
|
ok = false;
|
|
} else if (fan_attr <= asus->asus_hwmon_num_fans && fan_attr != -1) {
|
|
ok = true;
|
|
} else {
|
|
ok = false;
|
|
}
|
|
|
|
return ok ? attr->mode : 0;
|
|
}
|
|
|
|
static const struct attribute_group hwmon_attribute_group = {
|
|
.is_visible = asus_hwmon_sysfs_is_visible,
|
|
.attrs = hwmon_attributes
|
|
};
|
|
__ATTRIBUTE_GROUPS(hwmon_attribute);
|
|
|
|
static int asus_wmi_hwmon_init(struct asus_wmi *asus)
|
|
{
|
|
struct device *dev = &asus->platform_device->dev;
|
|
struct device *hwmon;
|
|
|
|
hwmon = devm_hwmon_device_register_with_groups(dev, "asus", asus,
|
|
hwmon_attribute_groups);
|
|
|
|
if (IS_ERR(hwmon)) {
|
|
pr_err("Could not register asus hwmon device\n");
|
|
return PTR_ERR(hwmon);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int asus_wmi_fan_init(struct asus_wmi *asus)
|
|
{
|
|
int status;
|
|
|
|
asus->asus_hwmon_pwm = -1;
|
|
asus->asus_hwmon_num_fans = -1;
|
|
asus->asus_hwmon_fan_manual_mode = false;
|
|
|
|
status = asus_hwmon_get_fan_number(asus, &asus->asus_hwmon_num_fans);
|
|
if (status) {
|
|
asus->asus_hwmon_num_fans = 0;
|
|
pr_warn("Could not determine number of fans: %d\n", status);
|
|
return -ENXIO;
|
|
}
|
|
|
|
pr_info("Number of fans: %d\n", asus->asus_hwmon_num_fans);
|
|
return 0;
|
|
}
|
|
|
|
/* Fan mode *******************************************************************/
|
|
|
|
static int fan_mode_check_present(struct asus_wmi *asus)
|
|
{
|
|
u32 result;
|
|
int err;
|
|
|
|
asus->fan_mode_available = false;
|
|
|
|
err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_MODE, &result);
|
|
if (err) {
|
|
if (err == -ENODEV)
|
|
return 0;
|
|
else
|
|
return err;
|
|
}
|
|
|
|
if ((result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
|
|
(result & ASUS_FAN_MODES_MASK)) {
|
|
asus->fan_mode_available = true;
|
|
asus->fan_mode_mask = result & ASUS_FAN_MODES_MASK;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fan_mode_write(struct asus_wmi *asus)
|
|
{
|
|
int err;
|
|
u8 value;
|
|
u32 retval;
|
|
|
|
value = asus->fan_mode;
|
|
|
|
pr_info("Set fan mode: %u\n", value);
|
|
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_FAN_MODE, value, &retval);
|
|
|
|
if (err) {
|
|
pr_warn("Failed to set fan mode: %d\n", err);
|
|
return err;
|
|
}
|
|
|
|
if (retval != 1) {
|
|
pr_warn("Failed to set fan mode (retval): 0x%x\n", retval);
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fan_mode_switch_next(struct asus_wmi *asus)
|
|
{
|
|
if (asus->fan_mode == ASUS_FAN_MODE_NORMAL) {
|
|
if (asus->fan_mode_mask & ASUS_FAN_MODE_OVERBOOST_MASK)
|
|
asus->fan_mode = ASUS_FAN_MODE_OVERBOOST;
|
|
else if (asus->fan_mode_mask & ASUS_FAN_MODE_SILENT_MASK)
|
|
asus->fan_mode = ASUS_FAN_MODE_SILENT;
|
|
} else if (asus->fan_mode == ASUS_FAN_MODE_OVERBOOST) {
|
|
if (asus->fan_mode_mask & ASUS_FAN_MODE_SILENT_MASK)
|
|
asus->fan_mode = ASUS_FAN_MODE_SILENT;
|
|
else
|
|
asus->fan_mode = ASUS_FAN_MODE_NORMAL;
|
|
} else {
|
|
asus->fan_mode = ASUS_FAN_MODE_NORMAL;
|
|
}
|
|
|
|
return fan_mode_write(asus);
|
|
}
|
|
|
|
static ssize_t fan_mode_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct asus_wmi *asus = dev_get_drvdata(dev);
|
|
|
|
return scnprintf(buf, PAGE_SIZE, "%d\n", asus->fan_mode);
|
|
}
|
|
|
|
static ssize_t fan_mode_store(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int result;
|
|
u8 new_mode;
|
|
|
|
struct asus_wmi *asus = dev_get_drvdata(dev);
|
|
|
|
result = kstrtou8(buf, 10, &new_mode);
|
|
if (result < 0) {
|
|
pr_warn("Trying to store invalid value\n");
|
|
return result;
|
|
}
|
|
|
|
if (new_mode == ASUS_FAN_MODE_OVERBOOST) {
|
|
if (!(asus->fan_mode_mask & ASUS_FAN_MODE_OVERBOOST_MASK))
|
|
return -EINVAL;
|
|
} else if (new_mode == ASUS_FAN_MODE_SILENT) {
|
|
if (!(asus->fan_mode_mask & ASUS_FAN_MODE_SILENT_MASK))
|
|
return -EINVAL;
|
|
} else if (new_mode != ASUS_FAN_MODE_NORMAL) {
|
|
return -EINVAL;
|
|
}
|
|
|
|
asus->fan_mode = new_mode;
|
|
fan_mode_write(asus);
|
|
|
|
return result;
|
|
}
|
|
|
|
// Fan mode: 0 - normal, 1 - overboost, 2 - silent
|
|
static DEVICE_ATTR_RW(fan_mode);
|
|
|
|
/* Backlight ******************************************************************/
|
|
|
|
static int read_backlight_power(struct asus_wmi *asus)
|
|
{
|
|
int ret;
|
|
if (asus->driver->quirks->store_backlight_power)
|
|
ret = !asus->driver->panel_power;
|
|
else
|
|
ret = asus_wmi_get_devstate_simple(asus,
|
|
ASUS_WMI_DEVID_BACKLIGHT);
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return ret ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
|
|
}
|
|
|
|
static int read_brightness_max(struct asus_wmi *asus)
|
|
{
|
|
u32 retval;
|
|
int err;
|
|
|
|
err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
retval = retval & ASUS_WMI_DSTS_MAX_BRIGTH_MASK;
|
|
retval >>= 8;
|
|
|
|
if (!retval)
|
|
return -ENODEV;
|
|
|
|
return retval;
|
|
}
|
|
|
|
static int read_brightness(struct backlight_device *bd)
|
|
{
|
|
struct asus_wmi *asus = bl_get_data(bd);
|
|
u32 retval;
|
|
int err;
|
|
|
|
err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_BRIGHTNESS, &retval);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
return retval & ASUS_WMI_DSTS_BRIGHTNESS_MASK;
|
|
}
|
|
|
|
static u32 get_scalar_command(struct backlight_device *bd)
|
|
{
|
|
struct asus_wmi *asus = bl_get_data(bd);
|
|
u32 ctrl_param = 0;
|
|
|
|
if ((asus->driver->brightness < bd->props.brightness) ||
|
|
bd->props.brightness == bd->props.max_brightness)
|
|
ctrl_param = 0x00008001;
|
|
else if ((asus->driver->brightness > bd->props.brightness) ||
|
|
bd->props.brightness == 0)
|
|
ctrl_param = 0x00008000;
|
|
|
|
asus->driver->brightness = bd->props.brightness;
|
|
|
|
return ctrl_param;
|
|
}
|
|
|
|
static int update_bl_status(struct backlight_device *bd)
|
|
{
|
|
struct asus_wmi *asus = bl_get_data(bd);
|
|
u32 ctrl_param;
|
|
int power, err = 0;
|
|
|
|
power = read_backlight_power(asus);
|
|
if (power != -ENODEV && bd->props.power != power) {
|
|
ctrl_param = !!(bd->props.power == FB_BLANK_UNBLANK);
|
|
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT,
|
|
ctrl_param, NULL);
|
|
if (asus->driver->quirks->store_backlight_power)
|
|
asus->driver->panel_power = bd->props.power;
|
|
|
|
/* When using scalar brightness, updating the brightness
|
|
* will mess with the backlight power */
|
|
if (asus->driver->quirks->scalar_panel_brightness)
|
|
return err;
|
|
}
|
|
|
|
if (asus->driver->quirks->scalar_panel_brightness)
|
|
ctrl_param = get_scalar_command(bd);
|
|
else
|
|
ctrl_param = bd->props.brightness;
|
|
|
|
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BRIGHTNESS,
|
|
ctrl_param, NULL);
|
|
|
|
return err;
|
|
}
|
|
|
|
static const struct backlight_ops asus_wmi_bl_ops = {
|
|
.get_brightness = read_brightness,
|
|
.update_status = update_bl_status,
|
|
};
|
|
|
|
static int asus_wmi_backlight_notify(struct asus_wmi *asus, int code)
|
|
{
|
|
struct backlight_device *bd = asus->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 asus_wmi_backlight_init(struct asus_wmi *asus)
|
|
{
|
|
struct backlight_device *bd;
|
|
struct backlight_properties props;
|
|
int max;
|
|
int power;
|
|
|
|
max = read_brightness_max(asus);
|
|
if (max < 0)
|
|
return max;
|
|
|
|
power = read_backlight_power(asus);
|
|
|
|
if (power == -ENODEV)
|
|
power = FB_BLANK_UNBLANK;
|
|
else if (power < 0)
|
|
return power;
|
|
|
|
memset(&props, 0, sizeof(struct backlight_properties));
|
|
props.type = BACKLIGHT_PLATFORM;
|
|
props.max_brightness = max;
|
|
bd = backlight_device_register(asus->driver->name,
|
|
&asus->platform_device->dev, asus,
|
|
&asus_wmi_bl_ops, &props);
|
|
if (IS_ERR(bd)) {
|
|
pr_err("Could not register backlight device\n");
|
|
return PTR_ERR(bd);
|
|
}
|
|
|
|
asus->backlight_device = bd;
|
|
|
|
if (asus->driver->quirks->store_backlight_power)
|
|
asus->driver->panel_power = power;
|
|
|
|
bd->props.brightness = read_brightness(bd);
|
|
bd->props.power = power;
|
|
backlight_update_status(bd);
|
|
|
|
asus->driver->brightness = bd->props.brightness;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void asus_wmi_backlight_exit(struct asus_wmi *asus)
|
|
{
|
|
backlight_device_unregister(asus->backlight_device);
|
|
|
|
asus->backlight_device = NULL;
|
|
}
|
|
|
|
static int is_display_toggle(int code)
|
|
{
|
|
/* display toggle keys */
|
|
if ((code >= 0x61 && code <= 0x67) ||
|
|
(code >= 0x8c && code <= 0x93) ||
|
|
(code >= 0xa0 && code <= 0xa7) ||
|
|
(code >= 0xd0 && code <= 0xd5))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Fn-lock ********************************************************************/
|
|
|
|
static bool asus_wmi_has_fnlock_key(struct asus_wmi *asus)
|
|
{
|
|
u32 result;
|
|
|
|
asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FNLOCK, &result);
|
|
|
|
return (result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
|
|
!(result & ASUS_WMI_FNLOCK_BIOS_DISABLED);
|
|
}
|
|
|
|
static void asus_wmi_fnlock_update(struct asus_wmi *asus)
|
|
{
|
|
int mode = asus->fnlock_locked;
|
|
|
|
asus_wmi_set_devstate(ASUS_WMI_DEVID_FNLOCK, mode, NULL);
|
|
}
|
|
|
|
/* WMI events *****************************************************************/
|
|
|
|
static int asus_wmi_get_event_code(u32 value)
|
|
{
|
|
struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
|
|
union acpi_object *obj;
|
|
acpi_status status;
|
|
int code;
|
|
|
|
status = wmi_get_event_data(value, &response);
|
|
if (ACPI_FAILURE(status)) {
|
|
pr_warn("Failed to get WMI notify code: %s\n",
|
|
acpi_format_exception(status));
|
|
return -EIO;
|
|
}
|
|
|
|
obj = (union acpi_object *)response.pointer;
|
|
|
|
if (obj && obj->type == ACPI_TYPE_INTEGER)
|
|
code = (int)(obj->integer.value & WMI_EVENT_MASK);
|
|
else
|
|
code = -EIO;
|
|
|
|
kfree(obj);
|
|
return code;
|
|
}
|
|
|
|
static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
|
|
{
|
|
int orig_code;
|
|
unsigned int key_value = 1;
|
|
bool autorelease = 1;
|
|
|
|
orig_code = code;
|
|
|
|
if (asus->driver->key_filter) {
|
|
asus->driver->key_filter(asus->driver, &code, &key_value,
|
|
&autorelease);
|
|
if (code == ASUS_WMI_KEY_IGNORE)
|
|
return;
|
|
}
|
|
|
|
if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
|
|
code = ASUS_WMI_BRN_UP;
|
|
else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
|
|
code = ASUS_WMI_BRN_DOWN;
|
|
|
|
if (code == ASUS_WMI_BRN_DOWN || code == ASUS_WMI_BRN_UP) {
|
|
if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
|
|
asus_wmi_backlight_notify(asus, orig_code);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (code == NOTIFY_KBD_BRTUP) {
|
|
kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
|
|
return;
|
|
}
|
|
if (code == NOTIFY_KBD_BRTDWN) {
|
|
kbd_led_set_by_kbd(asus, asus->kbd_led_wk - 1);
|
|
return;
|
|
}
|
|
if (code == NOTIFY_KBD_BRTTOGGLE) {
|
|
if (asus->kbd_led_wk == asus->kbd_led.max_brightness)
|
|
kbd_led_set_by_kbd(asus, 0);
|
|
else
|
|
kbd_led_set_by_kbd(asus, asus->kbd_led_wk + 1);
|
|
return;
|
|
}
|
|
|
|
if (code == NOTIFY_FNLOCK_TOGGLE) {
|
|
asus->fnlock_locked = !asus->fnlock_locked;
|
|
asus_wmi_fnlock_update(asus);
|
|
return;
|
|
}
|
|
|
|
if (asus->fan_mode_available && code == NOTIFY_KBD_FBM) {
|
|
fan_mode_switch_next(asus);
|
|
return;
|
|
}
|
|
|
|
if (is_display_toggle(code) && asus->driver->quirks->no_display_toggle)
|
|
return;
|
|
|
|
if (!sparse_keymap_report_event(asus->inputdev, code,
|
|
key_value, autorelease))
|
|
pr_info("Unknown key %x pressed\n", code);
|
|
}
|
|
|
|
static void asus_wmi_notify(u32 value, void *context)
|
|
{
|
|
struct asus_wmi *asus = context;
|
|
int code;
|
|
int i;
|
|
|
|
for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
|
|
code = asus_wmi_get_event_code(value);
|
|
|
|
if (code < 0) {
|
|
pr_warn("Failed to get notify code: %d\n", code);
|
|
return;
|
|
}
|
|
|
|
if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
|
|
return;
|
|
|
|
asus_wmi_handle_event_code(code, asus);
|
|
|
|
/*
|
|
* Double check that queue is present:
|
|
* ATK (with queue) uses 0xff, ASUSWMI (without) 0xd2.
|
|
*/
|
|
if (!asus->wmi_event_queue || value != WMI_EVENT_VALUE_ATK)
|
|
return;
|
|
}
|
|
|
|
pr_warn("Failed to process event queue, last code: 0x%x\n", code);
|
|
}
|
|
|
|
static int asus_wmi_notify_queue_flush(struct asus_wmi *asus)
|
|
{
|
|
int code;
|
|
int i;
|
|
|
|
for (i = 0; i < WMI_EVENT_QUEUE_SIZE + 1; i++) {
|
|
code = asus_wmi_get_event_code(WMI_EVENT_VALUE_ATK);
|
|
|
|
if (code < 0) {
|
|
pr_warn("Failed to get event during flush: %d\n", code);
|
|
return code;
|
|
}
|
|
|
|
if (code == WMI_EVENT_QUEUE_END || code == WMI_EVENT_MASK)
|
|
return 0;
|
|
}
|
|
|
|
pr_warn("Failed to flush event queue\n");
|
|
return -EIO;
|
|
}
|
|
|
|
/* Sysfs **********************************************************************/
|
|
|
|
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(struct asus_wmi *asus, int devid,
|
|
const char *buf, size_t count)
|
|
{
|
|
u32 retval;
|
|
int rv, err, value;
|
|
|
|
value = asus_wmi_get_devstate_simple(asus, devid);
|
|
if (value < 0)
|
|
return value;
|
|
|
|
rv = parse_arg(buf, count, &value);
|
|
err = asus_wmi_set_devstate(devid, value, &retval);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
return rv;
|
|
}
|
|
|
|
static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
|
|
{
|
|
int value = asus_wmi_get_devstate_simple(asus, devid);
|
|
|
|
if (value < 0)
|
|
return value;
|
|
|
|
return sprintf(buf, "%d\n", value);
|
|
}
|
|
|
|
#define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm) \
|
|
static ssize_t show_##_name(struct device *dev, \
|
|
struct device_attribute *attr, \
|
|
char *buf) \
|
|
{ \
|
|
struct asus_wmi *asus = dev_get_drvdata(dev); \
|
|
\
|
|
return show_sys_wmi(asus, _cm, buf); \
|
|
} \
|
|
static ssize_t store_##_name(struct device *dev, \
|
|
struct device_attribute *attr, \
|
|
const char *buf, size_t count) \
|
|
{ \
|
|
struct asus_wmi *asus = dev_get_drvdata(dev); \
|
|
\
|
|
return store_sys_wmi(asus, _cm, buf, count); \
|
|
} \
|
|
static struct device_attribute dev_attr_##_name = { \
|
|
.attr = { \
|
|
.name = __stringify(_name), \
|
|
.mode = _mode }, \
|
|
.show = show_##_name, \
|
|
.store = store_##_name, \
|
|
}
|
|
|
|
ASUS_WMI_CREATE_DEVICE_ATTR(touchpad, 0644, ASUS_WMI_DEVID_TOUCHPAD);
|
|
ASUS_WMI_CREATE_DEVICE_ATTR(camera, 0644, ASUS_WMI_DEVID_CAMERA);
|
|
ASUS_WMI_CREATE_DEVICE_ATTR(cardr, 0644, ASUS_WMI_DEVID_CARDREADER);
|
|
ASUS_WMI_CREATE_DEVICE_ATTR(lid_resume, 0644, ASUS_WMI_DEVID_LID_RESUME);
|
|
ASUS_WMI_CREATE_DEVICE_ATTR(als_enable, 0644, ASUS_WMI_DEVID_ALS_ENABLE);
|
|
|
|
static ssize_t cpufv_store(struct device *dev, struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
int value, rv;
|
|
|
|
if (!count || sscanf(buf, "%i", &value) != 1)
|
|
return -EINVAL;
|
|
if (value < 0 || value > 2)
|
|
return -EINVAL;
|
|
|
|
rv = asus_wmi_evaluate_method(ASUS_WMI_METHODID_CFVS, value, 0, NULL);
|
|
if (rv < 0)
|
|
return rv;
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR_WO(cpufv);
|
|
|
|
static struct attribute *platform_attributes[] = {
|
|
&dev_attr_cpufv.attr,
|
|
&dev_attr_camera.attr,
|
|
&dev_attr_cardr.attr,
|
|
&dev_attr_touchpad.attr,
|
|
&dev_attr_lid_resume.attr,
|
|
&dev_attr_als_enable.attr,
|
|
&dev_attr_fan_mode.attr,
|
|
NULL
|
|
};
|
|
|
|
static umode_t asus_sysfs_is_visible(struct kobject *kobj,
|
|
struct attribute *attr, int idx)
|
|
{
|
|
struct device *dev = container_of(kobj, struct device, kobj);
|
|
struct asus_wmi *asus = dev_get_drvdata(dev);
|
|
bool ok = true;
|
|
int devid = -1;
|
|
|
|
if (attr == &dev_attr_camera.attr)
|
|
devid = ASUS_WMI_DEVID_CAMERA;
|
|
else if (attr == &dev_attr_cardr.attr)
|
|
devid = ASUS_WMI_DEVID_CARDREADER;
|
|
else if (attr == &dev_attr_touchpad.attr)
|
|
devid = ASUS_WMI_DEVID_TOUCHPAD;
|
|
else if (attr == &dev_attr_lid_resume.attr)
|
|
devid = ASUS_WMI_DEVID_LID_RESUME;
|
|
else if (attr == &dev_attr_als_enable.attr)
|
|
devid = ASUS_WMI_DEVID_ALS_ENABLE;
|
|
else if (attr == &dev_attr_fan_mode.attr)
|
|
ok = asus->fan_mode_available;
|
|
|
|
if (devid != -1)
|
|
ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
|
|
|
|
return ok ? attr->mode : 0;
|
|
}
|
|
|
|
static const struct attribute_group platform_attribute_group = {
|
|
.is_visible = asus_sysfs_is_visible,
|
|
.attrs = platform_attributes
|
|
};
|
|
|
|
static void asus_wmi_sysfs_exit(struct platform_device *device)
|
|
{
|
|
sysfs_remove_group(&device->dev.kobj, &platform_attribute_group);
|
|
}
|
|
|
|
static int asus_wmi_sysfs_init(struct platform_device *device)
|
|
{
|
|
return sysfs_create_group(&device->dev.kobj, &platform_attribute_group);
|
|
}
|
|
|
|
/* Platform device ************************************************************/
|
|
|
|
static int asus_wmi_platform_init(struct asus_wmi *asus)
|
|
{
|
|
struct device *dev = &asus->platform_device->dev;
|
|
char *wmi_uid;
|
|
int rv;
|
|
|
|
/* INIT enable hotkeys on some models */
|
|
if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_INIT, 0, 0, &rv))
|
|
pr_info("Initialization: %#x\n", rv);
|
|
|
|
/* We don't know yet what to do with this version... */
|
|
if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SPEC, 0, 0x9, &rv)) {
|
|
pr_info("BIOS WMI version: %d.%d\n", rv >> 16, rv & 0xFF);
|
|
asus->spec = rv;
|
|
}
|
|
|
|
/*
|
|
* The SFUN method probably allows the original driver to get the list
|
|
* of features supported by a given model. For now, 0x0100 or 0x0800
|
|
* bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
|
|
* The significance of others is yet to be found.
|
|
*/
|
|
if (!asus_wmi_evaluate_method(ASUS_WMI_METHODID_SFUN, 0, 0, &rv)) {
|
|
pr_info("SFUN value: %#x\n", rv);
|
|
asus->sfun = rv;
|
|
}
|
|
|
|
/*
|
|
* Eee PC and Notebooks seems to have different method_id for DSTS,
|
|
* but it may also be related to the BIOS's SPEC.
|
|
* Note, on most Eeepc, there is no way to check if a method exist
|
|
* or note, while on notebooks, they returns 0xFFFFFFFE on failure,
|
|
* but once again, SPEC may probably be used for that kind of things.
|
|
*
|
|
* Additionally at least TUF Gaming series laptops return nothing for
|
|
* unknown methods, so the detection in this way is not possible.
|
|
*
|
|
* There is strong indication that only ACPI WMI devices that have _UID
|
|
* equal to "ASUSWMI" use DCTS whereas those with "ATK" use DSTS.
|
|
*/
|
|
wmi_uid = wmi_get_acpi_device_uid(ASUS_WMI_MGMT_GUID);
|
|
if (!wmi_uid)
|
|
return -ENODEV;
|
|
|
|
if (!strcmp(wmi_uid, ASUS_ACPI_UID_ASUSWMI)) {
|
|
dev_info(dev, "Detected ASUSWMI, use DCTS\n");
|
|
asus->dsts_id = ASUS_WMI_METHODID_DCTS;
|
|
} else {
|
|
dev_info(dev, "Detected %s, not ASUSWMI, use DSTS\n", wmi_uid);
|
|
asus->dsts_id = ASUS_WMI_METHODID_DSTS;
|
|
}
|
|
|
|
/*
|
|
* Some devices can have multiple event codes stored in a queue before
|
|
* the module load if it was unloaded intermittently after calling
|
|
* the INIT method (enables event handling). The WMI notify handler is
|
|
* expected to retrieve all event codes until a retrieved code equals
|
|
* queue end marker (One or Ones). Old codes are flushed from the queue
|
|
* upon module load. Not enabling this when it should be has minimal
|
|
* visible impact so fall back if anything goes wrong.
|
|
*/
|
|
wmi_uid = wmi_get_acpi_device_uid(asus->driver->event_guid);
|
|
if (wmi_uid && !strcmp(wmi_uid, ASUS_ACPI_UID_ATK)) {
|
|
dev_info(dev, "Detected ATK, enable event queue\n");
|
|
|
|
if (!asus_wmi_notify_queue_flush(asus))
|
|
asus->wmi_event_queue = true;
|
|
}
|
|
|
|
/* CWAP allow to define the behavior of the Fn+F2 key,
|
|
* this method doesn't seems to be present on Eee PCs */
|
|
if (asus->driver->quirks->wapf >= 0)
|
|
asus_wmi_set_devstate(ASUS_WMI_DEVID_CWAP,
|
|
asus->driver->quirks->wapf, NULL);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* debugfs ********************************************************************/
|
|
|
|
struct asus_wmi_debugfs_node {
|
|
struct asus_wmi *asus;
|
|
char *name;
|
|
int (*show) (struct seq_file *m, void *data);
|
|
};
|
|
|
|
static int show_dsts(struct seq_file *m, void *data)
|
|
{
|
|
struct asus_wmi *asus = m->private;
|
|
int err;
|
|
u32 retval = -1;
|
|
|
|
err = asus_wmi_get_devstate(asus, asus->debug.dev_id, &retval);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
seq_printf(m, "DSTS(%#x) = %#x\n", asus->debug.dev_id, retval);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int show_devs(struct seq_file *m, void *data)
|
|
{
|
|
struct asus_wmi *asus = m->private;
|
|
int err;
|
|
u32 retval = -1;
|
|
|
|
err = asus_wmi_set_devstate(asus->debug.dev_id, asus->debug.ctrl_param,
|
|
&retval);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
seq_printf(m, "DEVS(%#x, %#x) = %#x\n", asus->debug.dev_id,
|
|
asus->debug.ctrl_param, retval);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int show_call(struct seq_file *m, void *data)
|
|
{
|
|
struct asus_wmi *asus = m->private;
|
|
struct bios_args args = {
|
|
.arg0 = asus->debug.dev_id,
|
|
.arg1 = asus->debug.ctrl_param,
|
|
};
|
|
struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
|
|
struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
|
|
union acpi_object *obj;
|
|
acpi_status status;
|
|
|
|
status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID,
|
|
0, asus->debug.method_id,
|
|
&input, &output);
|
|
|
|
if (ACPI_FAILURE(status))
|
|
return -EIO;
|
|
|
|
obj = (union acpi_object *)output.pointer;
|
|
if (obj && obj->type == ACPI_TYPE_INTEGER)
|
|
seq_printf(m, "%#x(%#x, %#x) = %#x\n", asus->debug.method_id,
|
|
asus->debug.dev_id, asus->debug.ctrl_param,
|
|
(u32) obj->integer.value);
|
|
else
|
|
seq_printf(m, "%#x(%#x, %#x) = t:%d\n", asus->debug.method_id,
|
|
asus->debug.dev_id, asus->debug.ctrl_param,
|
|
obj ? obj->type : -1);
|
|
|
|
kfree(obj);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct asus_wmi_debugfs_node asus_wmi_debug_files[] = {
|
|
{NULL, "devs", show_devs},
|
|
{NULL, "dsts", show_dsts},
|
|
{NULL, "call", show_call},
|
|
};
|
|
|
|
static int asus_wmi_debugfs_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct asus_wmi_debugfs_node *node = inode->i_private;
|
|
|
|
return single_open(file, node->show, node->asus);
|
|
}
|
|
|
|
static const struct file_operations asus_wmi_debugfs_io_ops = {
|
|
.owner = THIS_MODULE,
|
|
.open = asus_wmi_debugfs_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static void asus_wmi_debugfs_exit(struct asus_wmi *asus)
|
|
{
|
|
debugfs_remove_recursive(asus->debug.root);
|
|
}
|
|
|
|
static void asus_wmi_debugfs_init(struct asus_wmi *asus)
|
|
{
|
|
int i;
|
|
|
|
asus->debug.root = debugfs_create_dir(asus->driver->name, NULL);
|
|
|
|
debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, asus->debug.root,
|
|
&asus->debug.method_id);
|
|
|
|
debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, asus->debug.root,
|
|
&asus->debug.dev_id);
|
|
|
|
debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, asus->debug.root,
|
|
&asus->debug.ctrl_param);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) {
|
|
struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i];
|
|
|
|
node->asus = asus;
|
|
debugfs_create_file(node->name, S_IFREG | S_IRUGO,
|
|
asus->debug.root, node,
|
|
&asus_wmi_debugfs_io_ops);
|
|
}
|
|
}
|
|
|
|
/* Init / exit ****************************************************************/
|
|
|
|
static int asus_wmi_add(struct platform_device *pdev)
|
|
{
|
|
struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
|
|
struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
|
|
struct asus_wmi *asus;
|
|
const char *chassis_type;
|
|
acpi_status status;
|
|
int err;
|
|
u32 result;
|
|
|
|
asus = kzalloc(sizeof(struct asus_wmi), GFP_KERNEL);
|
|
if (!asus)
|
|
return -ENOMEM;
|
|
|
|
asus->driver = wdrv;
|
|
asus->platform_device = pdev;
|
|
wdrv->platform_device = pdev;
|
|
platform_set_drvdata(asus->platform_device, asus);
|
|
|
|
if (wdrv->detect_quirks)
|
|
wdrv->detect_quirks(asus->driver);
|
|
|
|
err = asus_wmi_platform_init(asus);
|
|
if (err)
|
|
goto fail_platform;
|
|
|
|
err = fan_mode_check_present(asus);
|
|
if (err)
|
|
goto fail_fan_mode;
|
|
|
|
err = asus_wmi_sysfs_init(asus->platform_device);
|
|
if (err)
|
|
goto fail_sysfs;
|
|
|
|
err = asus_wmi_input_init(asus);
|
|
if (err)
|
|
goto fail_input;
|
|
|
|
err = asus_wmi_fan_init(asus); /* probably no problems on error */
|
|
asus_hwmon_fan_set_auto(asus);
|
|
|
|
err = asus_wmi_hwmon_init(asus);
|
|
if (err)
|
|
goto fail_hwmon;
|
|
|
|
err = asus_wmi_led_init(asus);
|
|
if (err)
|
|
goto fail_leds;
|
|
|
|
asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result);
|
|
if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT))
|
|
asus->driver->wlan_ctrl_by_user = 1;
|
|
|
|
if (!(asus->driver->wlan_ctrl_by_user && ashs_present())) {
|
|
err = asus_wmi_rfkill_init(asus);
|
|
if (err)
|
|
goto fail_rfkill;
|
|
}
|
|
|
|
if (asus->driver->quirks->wmi_force_als_set)
|
|
asus_wmi_set_als();
|
|
|
|
/* Some Asus desktop boards export an acpi-video backlight interface,
|
|
stop this from showing up */
|
|
chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
|
|
if (chassis_type && !strcmp(chassis_type, "3"))
|
|
acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
|
|
|
|
if (asus->driver->quirks->wmi_backlight_power)
|
|
acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
|
|
|
|
if (asus->driver->quirks->wmi_backlight_native)
|
|
acpi_video_set_dmi_backlight_type(acpi_backlight_native);
|
|
|
|
if (asus->driver->quirks->xusb2pr)
|
|
asus_wmi_set_xusb2pr(asus);
|
|
|
|
if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
|
|
err = asus_wmi_backlight_init(asus);
|
|
if (err && err != -ENODEV)
|
|
goto fail_backlight;
|
|
} else if (asus->driver->quirks->wmi_backlight_set_devstate)
|
|
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL);
|
|
|
|
if (asus_wmi_has_fnlock_key(asus)) {
|
|
asus->fnlock_locked = true;
|
|
asus_wmi_fnlock_update(asus);
|
|
}
|
|
|
|
status = wmi_install_notify_handler(asus->driver->event_guid,
|
|
asus_wmi_notify, asus);
|
|
if (ACPI_FAILURE(status)) {
|
|
pr_err("Unable to register notify handler - %d\n", status);
|
|
err = -ENODEV;
|
|
goto fail_wmi_handler;
|
|
}
|
|
|
|
asus_wmi_debugfs_init(asus);
|
|
|
|
return 0;
|
|
|
|
fail_wmi_handler:
|
|
asus_wmi_backlight_exit(asus);
|
|
fail_backlight:
|
|
asus_wmi_rfkill_exit(asus);
|
|
fail_rfkill:
|
|
asus_wmi_led_exit(asus);
|
|
fail_leds:
|
|
fail_hwmon:
|
|
asus_wmi_input_exit(asus);
|
|
fail_input:
|
|
asus_wmi_sysfs_exit(asus->platform_device);
|
|
fail_sysfs:
|
|
fail_fan_mode:
|
|
fail_platform:
|
|
kfree(asus);
|
|
return err;
|
|
}
|
|
|
|
static int asus_wmi_remove(struct platform_device *device)
|
|
{
|
|
struct asus_wmi *asus;
|
|
|
|
asus = platform_get_drvdata(device);
|
|
wmi_remove_notify_handler(asus->driver->event_guid);
|
|
asus_wmi_backlight_exit(asus);
|
|
asus_wmi_input_exit(asus);
|
|
asus_wmi_led_exit(asus);
|
|
asus_wmi_rfkill_exit(asus);
|
|
asus_wmi_debugfs_exit(asus);
|
|
asus_wmi_sysfs_exit(asus->platform_device);
|
|
asus_hwmon_fan_set_auto(asus);
|
|
|
|
kfree(asus);
|
|
return 0;
|
|
}
|
|
|
|
/* Platform driver - hibernate/resume callbacks *******************************/
|
|
|
|
static int asus_hotk_thaw(struct device *device)
|
|
{
|
|
struct asus_wmi *asus = dev_get_drvdata(device);
|
|
|
|
if (asus->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 = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WLAN);
|
|
asus_wmi_set_devstate(ASUS_WMI_DEVID_WLAN, wlan, NULL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int asus_hotk_resume(struct device *device)
|
|
{
|
|
struct asus_wmi *asus = dev_get_drvdata(device);
|
|
|
|
if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
|
|
kbd_led_update(asus);
|
|
|
|
if (asus_wmi_has_fnlock_key(asus))
|
|
asus_wmi_fnlock_update(asus);
|
|
return 0;
|
|
}
|
|
|
|
static int asus_hotk_restore(struct device *device)
|
|
{
|
|
struct asus_wmi *asus = dev_get_drvdata(device);
|
|
int bl;
|
|
|
|
/* Refresh both wlan rfkill state and pci hotplug */
|
|
if (asus->wlan.rfkill)
|
|
asus_rfkill_hotplug(asus);
|
|
|
|
if (asus->bluetooth.rfkill) {
|
|
bl = !asus_wmi_get_devstate_simple(asus,
|
|
ASUS_WMI_DEVID_BLUETOOTH);
|
|
rfkill_set_sw_state(asus->bluetooth.rfkill, bl);
|
|
}
|
|
if (asus->wimax.rfkill) {
|
|
bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WIMAX);
|
|
rfkill_set_sw_state(asus->wimax.rfkill, bl);
|
|
}
|
|
if (asus->wwan3g.rfkill) {
|
|
bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_WWAN3G);
|
|
rfkill_set_sw_state(asus->wwan3g.rfkill, bl);
|
|
}
|
|
if (asus->gps.rfkill) {
|
|
bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPS);
|
|
rfkill_set_sw_state(asus->gps.rfkill, bl);
|
|
}
|
|
if (asus->uwb.rfkill) {
|
|
bl = !asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_UWB);
|
|
rfkill_set_sw_state(asus->uwb.rfkill, bl);
|
|
}
|
|
if (!IS_ERR_OR_NULL(asus->kbd_led.dev))
|
|
kbd_led_update(asus);
|
|
|
|
if (asus_wmi_has_fnlock_key(asus))
|
|
asus_wmi_fnlock_update(asus);
|
|
return 0;
|
|
}
|
|
|
|
static const struct dev_pm_ops asus_pm_ops = {
|
|
.thaw = asus_hotk_thaw,
|
|
.restore = asus_hotk_restore,
|
|
.resume = asus_hotk_resume,
|
|
};
|
|
|
|
/* Registration ***************************************************************/
|
|
|
|
static int asus_wmi_probe(struct platform_device *pdev)
|
|
{
|
|
struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver);
|
|
struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv);
|
|
int ret;
|
|
|
|
if (!wmi_has_guid(ASUS_WMI_MGMT_GUID)) {
|
|
pr_warn("ASUS Management GUID not found\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (wdrv->event_guid && !wmi_has_guid(wdrv->event_guid)) {
|
|
pr_warn("ASUS Event GUID not found\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (wdrv->probe) {
|
|
ret = wdrv->probe(pdev);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return asus_wmi_add(pdev);
|
|
}
|
|
|
|
static bool used;
|
|
|
|
int __init_or_module asus_wmi_register_driver(struct asus_wmi_driver *driver)
|
|
{
|
|
struct platform_driver *platform_driver;
|
|
struct platform_device *platform_device;
|
|
|
|
if (used)
|
|
return -EBUSY;
|
|
|
|
platform_driver = &driver->platform_driver;
|
|
platform_driver->remove = asus_wmi_remove;
|
|
platform_driver->driver.owner = driver->owner;
|
|
platform_driver->driver.name = driver->name;
|
|
platform_driver->driver.pm = &asus_pm_ops;
|
|
|
|
platform_device = platform_create_bundle(platform_driver,
|
|
asus_wmi_probe,
|
|
NULL, 0, NULL, 0);
|
|
if (IS_ERR(platform_device))
|
|
return PTR_ERR(platform_device);
|
|
|
|
used = true;
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asus_wmi_register_driver);
|
|
|
|
void asus_wmi_unregister_driver(struct asus_wmi_driver *driver)
|
|
{
|
|
platform_device_unregister(driver->platform_device);
|
|
platform_driver_unregister(&driver->platform_driver);
|
|
used = false;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asus_wmi_unregister_driver);
|
|
|
|
static int __init asus_wmi_init(void)
|
|
{
|
|
pr_info("ASUS WMI generic driver loaded\n");
|
|
return 0;
|
|
}
|
|
|
|
static void __exit asus_wmi_exit(void)
|
|
{
|
|
pr_info("ASUS WMI generic driver unloaded\n");
|
|
}
|
|
|
|
module_init(asus_wmi_init);
|
|
module_exit(asus_wmi_exit);
|