blob: 3f9b6285c9a66f31fbf8756cb56f6e384112fd07 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Asus PC WMI hotkey driver
*
* Copyright(C) 2010 Intel Corporation.
* Copyright(C) 2010-2011 Corentin Chary <corentin.chary@gmail.com>
*
* Portions based on wistron_btns.c:
* Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
* Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
* Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/acpi.h>
#include <linux/backlight.h>
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/dmi.h>
#include <linux/fb.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
#include <linux/kernel.h>
#include <linux/leds.h>
#include <linux/minmax.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/pci_hotplug.h>
#include <linux/platform_data/x86/asus-wmi.h>
#include <linux/platform_device.h>
#include <linux/platform_profile.h>
#include <linux/power_supply.h>
#include <linux/rfkill.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/units.h>
#include <acpi/battery.h>
#include <acpi/video.h>
#include "asus-wmi.h"
MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>");
MODULE_AUTHOR("Yong Wang <yong.y.wang@intel.com>");
MODULE_DESCRIPTION("Asus Generic WMI Driver");
MODULE_LICENSE("GPL");
static bool fnlock_default = true;
module_param(fnlock_default, bool, 0444);
#define to_asus_wmi_driver(pdrv) \
(container_of((pdrv), struct asus_wmi_driver, platform_driver))
#define ASUS_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66"
#define NOTIFY_BRNUP_MIN 0x11
#define NOTIFY_BRNUP_MAX 0x1f
#define NOTIFY_BRNDOWN_MIN 0x20
#define NOTIFY_BRNDOWN_MAX 0x2e
#define NOTIFY_FNLOCK_TOGGLE 0x4e
#define NOTIFY_KBD_DOCK_CHANGE 0x75
#define NOTIFY_KBD_BRTUP 0xc4
#define NOTIFY_KBD_BRTDWN 0xc5
#define NOTIFY_KBD_BRTTOGGLE 0xc7
#define NOTIFY_KBD_FBM 0x99
#define NOTIFY_KBD_TTP 0xae
#define NOTIFY_LID_FLIP 0xfa
#define NOTIFY_LID_FLIP_ROG 0xbd
#define ASUS_WMI_FNLOCK_BIOS_DISABLED BIT(0)
#define ASUS_MID_FAN_DESC "mid_fan"
#define ASUS_GPU_FAN_DESC "gpu_fan"
#define ASUS_FAN_DESC "cpu_fan"
#define ASUS_FAN_MFUN 0x13
#define ASUS_FAN_SFUN_READ 0x06
#define ASUS_FAN_SFUN_WRITE 0x07
/* Based on standard hwmon pwmX_enable values */
#define ASUS_FAN_CTRL_FULLSPEED 0
#define ASUS_FAN_CTRL_MANUAL 1
#define ASUS_FAN_CTRL_AUTO 2
#define ASUS_FAN_BOOST_MODE_NORMAL 0
#define ASUS_FAN_BOOST_MODE_OVERBOOST 1
#define ASUS_FAN_BOOST_MODE_OVERBOOST_MASK 0x01
#define ASUS_FAN_BOOST_MODE_SILENT 2
#define ASUS_FAN_BOOST_MODE_SILENT_MASK 0x02
#define ASUS_FAN_BOOST_MODES_MASK 0x03
#define ASUS_THROTTLE_THERMAL_POLICY_DEFAULT 0
#define ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST 1
#define ASUS_THROTTLE_THERMAL_POLICY_SILENT 2
#define USB_INTEL_XUSB2PR 0xD0
#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31
#define ASUS_ACPI_UID_ASUSWMI "ASUSWMI"
#define WMI_EVENT_MASK 0xFFFF
#define FAN_CURVE_POINTS 8
#define FAN_CURVE_BUF_LEN 32
#define FAN_CURVE_DEV_CPU 0x00
#define FAN_CURVE_DEV_GPU 0x01
#define FAN_CURVE_DEV_MID 0x02
/* Mask to determine if setting temperature or percentage */
#define FAN_CURVE_PWM_MASK 0x04
/* Limits for tunables available on ASUS ROG laptops */
#define PPT_TOTAL_MIN 5
#define PPT_TOTAL_MAX 250
#define PPT_CPU_MIN 5
#define PPT_CPU_MAX 130
#define NVIDIA_BOOST_MIN 5
#define NVIDIA_BOOST_MAX 25
#define NVIDIA_TEMP_MIN 75
#define NVIDIA_TEMP_MAX 87
#define ASUS_SCREENPAD_BRIGHT_MIN 20
#define ASUS_SCREENPAD_BRIGHT_MAX 255
#define ASUS_SCREENPAD_BRIGHT_DEFAULT 60
#define ASUS_MINI_LED_MODE_MASK 0x03
/* Standard modes for devices with only on/off */
#define ASUS_MINI_LED_OFF 0x00
#define ASUS_MINI_LED_ON 0x01
/* New mode on some devices, define here to clarify remapping later */
#define ASUS_MINI_LED_STRONG_MODE 0x02
/* New modes for devices with 3 mini-led mode types */
#define ASUS_MINI_LED_2024_WEAK 0x00
#define ASUS_MINI_LED_2024_STRONG 0x01
#define ASUS_MINI_LED_2024_OFF 0x02
/* Controls the power state of the USB0 hub on ROG Ally which input is on */
#define ASUS_USB0_PWR_EC0_CSEE "\\_SB.PCI0.SBRG.EC0.CSEE"
/* 300ms so far seems to produce a reliable result on AC and battery */
#define ASUS_USB0_PWR_EC0_CSEE_WAIT 1500
static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
static int throttle_thermal_policy_write(struct asus_wmi *);
static bool ashs_present(void)
{
int i = 0;
while (ashs_ids[i]) {
if (acpi_dev_found(ashs_ids[i++]))
return true;
}
return false;
}
struct bios_args {
u32 arg0;
u32 arg1;
u32 arg2; /* At least TUF Gaming series uses 3 dword input buffer. */
u32 arg3;
u32 arg4; /* Some ROG laptops require a full 5 input args */
u32 arg5;
} __packed;
/*
* Struct that's used for all methods called via AGFN. Naming is
* identically to the AML code.
*/
struct agfn_args {
u16 mfun; /* probably "Multi-function" to be called */
u16 sfun; /* probably "Sub-function" to be called */
u16 len; /* size of the hole struct, including subfunction fields */
u8 stas; /* not used by now */
u8 err; /* zero on success */
} __packed;
/* struct used for calling fan read and write methods */
struct agfn_fan_args {
struct agfn_args agfn; /* common fields */
u8 fan; /* fan number: 0: set auto mode 1: 1st fan */
u32 speed; /* read: RPM/100 - write: 0-255 */
} __packed;
/*
* <platform>/ - debugfs root directory
* dev_id - current dev_id
* ctrl_param - current ctrl_param
* method_id - current method_id
* devs - call DEVS(dev_id, ctrl_param) and print result
* dsts - call DSTS(dev_id) and print result
* call - call method_id(dev_id, ctrl_param) and print result
*/
struct asus_wmi_debug {
struct dentry *root;
u32 method_id;
u32 dev_id;
u32 ctrl_param;
};
struct asus_rfkill {
struct asus_wmi *asus;
struct rfkill *rfkill;
u32 dev_id;
};
enum fan_type {
FAN_TYPE_NONE = 0,
FAN_TYPE_AGFN, /* deprecated on newer platforms */
FAN_TYPE_SPEC83, /* starting in Spec 8.3, use CPU_FAN_CTRL */
};
struct fan_curve_data {
bool enabled;
u32 device_id;
u8 temps[FAN_CURVE_POINTS];
u8 percents[FAN_CURVE_POINTS];
};
struct asus_wmi {
int dsts_id;
int spec;
int sfun;
struct input_dev *inputdev;
struct backlight_device *backlight_device;
struct backlight_device *screenpad_backlight_device;
struct platform_device *platform_device;
struct led_classdev wlan_led;
int wlan_led_wk;
struct led_classdev tpd_led;
int tpd_led_wk;
struct led_classdev kbd_led;
int kbd_led_wk;
struct led_classdev lightbar_led;
int lightbar_led_wk;
struct led_classdev micmute_led;
struct workqueue_struct *led_workqueue;
struct work_struct tpd_led_work;
struct work_struct wlan_led_work;
struct work_struct lightbar_led_work;
struct asus_rfkill wlan;
struct asus_rfkill bluetooth;
struct asus_rfkill wimax;
struct asus_rfkill wwan3g;
struct asus_rfkill gps;
struct asus_rfkill uwb;
int tablet_switch_event_code;
u32 tablet_switch_dev_id;
bool tablet_switch_inverted;
/* The ROG Ally device requires the MCU USB device be disconnected before suspend */
bool ally_mcu_usb_switch;
enum fan_type fan_type;
enum fan_type gpu_fan_type;
enum fan_type mid_fan_type;
int fan_pwm_mode;
int gpu_fan_pwm_mode;
int mid_fan_pwm_mode;
int agfn_pwm;
bool fan_boost_mode_available;
u8 fan_boost_mode_mask;
u8 fan_boost_mode;
bool egpu_enable_available;
bool dgpu_disable_available;
u32 gpu_mux_dev;
/* Tunables provided by ASUS for gaming laptops */
u32 ppt_pl2_sppt;
u32 ppt_pl1_spl;
u32 ppt_apu_sppt;
u32 ppt_platform_sppt;
u32 ppt_fppt;
u32 nv_dynamic_boost;
u32 nv_temp_target;
u32 kbd_rgb_dev;
bool kbd_rgb_state_available;
bool throttle_thermal_policy_available;
u8 throttle_thermal_policy_mode;
bool cpu_fan_curve_available;
bool gpu_fan_curve_available;
bool mid_fan_curve_available;
struct fan_curve_data custom_fan_curves[3];
struct platform_profile_handler platform_profile_handler;
bool platform_profile_support;
// The RSOC controls the maximum charging percentage.
bool battery_rsoc_available;
bool panel_overdrive_available;
u32 mini_led_dev_id;
struct hotplug_slot hotplug_slot;
struct mutex hotplug_lock;
struct mutex wmi_lock;
struct workqueue_struct *hotplug_workqueue;
struct work_struct hotplug_work;
bool fnlock_locked;
struct asus_wmi_debug debug;
struct asus_wmi_driver *driver;
};
/* WMI ************************************************************************/
static int asus_wmi_evaluate_method3(u32 method_id,
u32 arg0, u32 arg1, u32 arg2, u32 *retval)
{
struct bios_args args = {
.arg0 = arg0,
.arg1 = arg1,
.arg2 = arg2,
};
struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
acpi_status status;
union acpi_object *obj;
u32 tmp = 0;
status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
&input, &output);
if (ACPI_FAILURE(status))
return -EIO;
obj = (union acpi_object *)output.pointer;
if (obj && obj->type == ACPI_TYPE_INTEGER)
tmp = (u32) obj->integer.value;
if (retval)
*retval = tmp;
kfree(obj);
if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
return -ENODEV;
return 0;
}
int asus_wmi_evaluate_method(u32 method_id, u32 arg0, u32 arg1, u32 *retval)
{
return asus_wmi_evaluate_method3(method_id, arg0, arg1, 0, retval);
}
EXPORT_SYMBOL_GPL(asus_wmi_evaluate_method);
static int asus_wmi_evaluate_method5(u32 method_id,
u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 *retval)
{
struct bios_args args = {
.arg0 = arg0,
.arg1 = arg1,
.arg2 = arg2,
.arg3 = arg3,
.arg4 = arg4,
};
struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
acpi_status status;
union acpi_object *obj;
u32 tmp = 0;
status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
&input, &output);
if (ACPI_FAILURE(status))
return -EIO;
obj = (union acpi_object *)output.pointer;
if (obj && obj->type == ACPI_TYPE_INTEGER)
tmp = (u32) obj->integer.value;
if (retval)
*retval = tmp;
kfree(obj);
if (tmp == ASUS_WMI_UNSUPPORTED_METHOD)
return -ENODEV;
return 0;
}
/*
* Returns as an error if the method output is not a buffer. Typically this
* means that the method called is unsupported.
*/
static int asus_wmi_evaluate_method_buf(u32 method_id,
u32 arg0, u32 arg1, u8 *ret_buffer, size_t size)
{
struct bios_args args = {
.arg0 = arg0,
.arg1 = arg1,
.arg2 = 0,
};
struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
acpi_status status;
union acpi_object *obj;
int err = 0;
status = wmi_evaluate_method(ASUS_WMI_MGMT_GUID, 0, method_id,
&input, &output);
if (ACPI_FAILURE(status))
return -EIO;
obj = (union acpi_object *)output.pointer;
switch (obj->type) {
case ACPI_TYPE_BUFFER:
if (obj->buffer.length > size) {
err = -ENOSPC;
break;
}
if (obj->buffer.length == 0) {
err = -ENODATA;
break;
}
memcpy(ret_buffer, obj->buffer.pointer, obj->buffer.length);
break;
case ACPI_TYPE_INTEGER:
err = (u32)obj->integer.value;
if (err == ASUS_WMI_UNSUPPORTED_METHOD)
err = -ENODEV;
/*
* At least one method returns a 0 with no buffer if no arg
* is provided, such as ASUS_WMI_DEVID_CPU_FAN_CURVE
*/
if (err == 0)
err = -ENODATA;
break;
default:
err = -ENODATA;
break;
}
kfree(obj);
if (err)
return err;
return 0;
}
static int asus_wmi_evaluate_method_agfn(const struct acpi_buffer args)
{
struct acpi_buffer input;
u64 phys_addr;
u32 retval;
u32 status;
/*
* Copy to dma capable address otherwise memory corruption occurs as
* bios has to be able to access it.
*/
input.pointer = kmemdup(args.pointer, args.length, GFP_DMA | GFP_KERNEL);
input.length = args.length;
if (!input.pointer)
return -ENOMEM;
phys_addr = virt_to_phys(input.pointer);
status = asus_wmi_evaluate_method(ASUS_WMI_METHODID_AGFN,
phys_addr, 0, &retval);
if (!status)
memcpy(args.pointer, input.pointer, args.length);
kfree(input.pointer);
if (status)
return -ENXIO;
return retval;
}
static int asus_wmi_get_devstate(struct asus_wmi *asus, u32 dev_id, u32 *retval)
{
int err;
err = asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval);
if (err)
return err;
if (*retval == ~0)
return -ENODEV;
return 0;
}
static int asus_wmi_set_devstate(u32 dev_id, u32 ctrl_param,
u32 *retval)
{
return asus_wmi_evaluate_method(ASUS_WMI_METHODID_DEVS, dev_id,
ctrl_param, retval);
}
/* Helper for special devices with magic return codes */
static int asus_wmi_get_devstate_bits(struct asus_wmi *asus,
u32 dev_id, u32 mask)
{
u32 retval = 0;
int err;
err = asus_wmi_get_devstate(asus, dev_id, &retval);
if (err < 0)
return err;
if (!(retval & ASUS_WMI_DSTS_PRESENCE_BIT))
return -ENODEV;
if (mask == ASUS_WMI_DSTS_STATUS_BIT) {
if (retval & ASUS_WMI_DSTS_UNKNOWN_BIT)
return -ENODEV;
}
return retval & mask;
}
static int asus_wmi_get_devstate_simple(struct asus_wmi *asus, u32 dev_id)
{
return asus_wmi_get_devstate_bits(asus, dev_id,
ASUS_WMI_DSTS_STATUS_BIT);
}
static bool asus_wmi_dev_is_present(struct asus_wmi *asus, u32 dev_id)
{
u32 retval;
int status = asus_wmi_get_devstate(asus, dev_id, &retval);
return status == 0 && (retval & ASUS_WMI_DSTS_PRESENCE_BIT);
}
/* Input **********************************************************************/
static void asus_wmi_tablet_sw_report(struct asus_wmi *asus, bool value)
{
input_report_switch(asus->inputdev, SW_TABLET_MODE,
asus->tablet_switch_inverted ? !value : value);
input_sync(asus->inputdev);
}
static void asus_wmi_tablet_sw_init(struct asus_wmi *asus, u32 dev_id, int event_code)
{
struct device *dev = &asus->platform_device->dev;
int result;
result = asus_wmi_get_devstate_simple(asus, dev_id);
if (result >= 0) {
input_set_capability(asus->inputdev, EV_SW, SW_TABLET_MODE);
asus_wmi_tablet_sw_report(asus, result);
asus->tablet_switch_dev_id = dev_id;
asus->tablet_switch_event_code = event_code;
} else if (result == -ENODEV) {
dev_err(dev, "This device has tablet-mode-switch quirk but got ENODEV checking it. This is a bug.");
} else {
dev_err(dev, "Error checking for tablet-mode-switch: %d\n", result);
}
}
static int asus_wmi_input_init(struct asus_wmi *asus)
{
struct device *dev = &asus->platform_device->dev;
int err;
asus->inputdev = input_allocate_device();
if (!asus->inputdev)
return -ENOMEM;
asus->inputdev->name = asus->driver->input_name;
asus->inputdev->phys = asus->driver->input_phys;
asus->inputdev->id.bustype = BUS_HOST;
asus->inputdev->dev.parent = dev;
set_bit(EV_REP, asus->inputdev->evbit);
err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL);
if (err)
goto err_free_dev;
switch (asus->driver->quirks->tablet_switch_mode) {
case asus_wmi_no_tablet_switch:
break;
case asus_wmi_kbd_dock_devid:
asus->tablet_switch_inverted = true;
asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_KBD_DOCK, NOTIFY_KBD_DOCK_CHANGE);
break;
case asus_wmi_lid_flip_devid:
asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP, NOTIFY_LID_FLIP);
break;
case asus_wmi_lid_flip_rog_devid:
asus_wmi_tablet_sw_init(asus, ASUS_WMI_DEVID_LID_FLIP_ROG, NOTIFY_LID_FLIP_ROG);
break;
}
err = input_register_device(asus->inputdev);
if (err)
goto err_free_dev;
return 0;
err_free_dev:
input_free_device(asus->inputdev);
return err;
}
static void asus_wmi_input_exit(struct asus_wmi *asus)
{
if (asus->inputdev)
input_unregister_device(asus->inputdev);
asus->inputdev = NULL;
}
/* Tablet mode ****************************************************************/
static void asus_wmi_tablet_mode_get_state(struct asus_wmi *asus)
{
int result;
if (!asus->tablet_switch_dev_id)
return;
result = asus_wmi_get_devstate_simple(asus, asus->tablet_switch_dev_id);
if (result >= 0)
asus_wmi_tablet_sw_report(asus, result);
}
/* Charging mode, 1=Barrel, 2=USB ******************************************/
static ssize_t charge_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result, value;
result = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CHARGE_MODE, &value);
if (result < 0)
return result;
return sysfs_emit(buf, "%d\n", value & 0xff);
}
static DEVICE_ATTR_RO(charge_mode);
/* dGPU ********************************************************************/
static ssize_t dgpu_disable_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result;
result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU);
if (result < 0)
return result;
return sysfs_emit(buf, "%d\n", result);
}
/*
* A user may be required to store the value twice, typcial store first, then
* rescan PCI bus to activate power, then store a second time to save correctly.
* The reason for this is that an extra code path in the ACPI is enabled when
* the device and bus are powered.
*/
static ssize_t dgpu_disable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int result, err;
u32 disable;
struct asus_wmi *asus = dev_get_drvdata(dev);
result = kstrtou32(buf, 10, &disable);
if (result)
return result;
if (disable > 1)
return -EINVAL;
if (asus->gpu_mux_dev) {
result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
if (result < 0)
/* An error here may signal greater failure of GPU handling */
return result;
if (!result && disable) {
err = -ENODEV;
pr_warn("Can not disable dGPU when the MUX is in dGPU mode: %d\n", err);
return err;
}
}
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_DGPU, disable, &result);
if (err) {
pr_warn("Failed to set dgpu disable: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set dgpu disable (result): 0x%x\n", result);
return -EIO;
}
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "dgpu_disable");
return count;
}
static DEVICE_ATTR_RW(dgpu_disable);
/* eGPU ********************************************************************/
static ssize_t egpu_enable_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result;
result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU);
if (result < 0)
return result;
return sysfs_emit(buf, "%d\n", result);
}
/* The ACPI call to enable the eGPU also disables the internal dGPU */
static ssize_t egpu_enable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int result, err;
u32 enable;
struct asus_wmi *asus = dev_get_drvdata(dev);
err = kstrtou32(buf, 10, &enable);
if (err)
return err;
if (enable > 1)
return -EINVAL;
err = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
if (err < 0) {
pr_warn("Failed to get egpu connection status: %d\n", err);
return err;
}
if (asus->gpu_mux_dev) {
result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
if (result < 0) {
/* An error here may signal greater failure of GPU handling */
pr_warn("Failed to get gpu mux status: %d\n", result);
return result;
}
if (!result && enable) {
err = -ENODEV;
pr_warn("Can not enable eGPU when the MUX is in dGPU mode: %d\n", err);
return err;
}
}
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_EGPU, enable, &result);
if (err) {
pr_warn("Failed to set egpu state: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set egpu state (retval): 0x%x\n", result);
return -EIO;
}
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "egpu_enable");
return count;
}
static DEVICE_ATTR_RW(egpu_enable);
/* Is eGPU connected? *********************************************************/
static ssize_t egpu_connected_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result;
result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
if (result < 0)
return result;
return sysfs_emit(buf, "%d\n", result);
}
static DEVICE_ATTR_RO(egpu_connected);
/* gpu mux switch *************************************************************/
static ssize_t gpu_mux_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result;
result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
if (result < 0)
return result;
return sysfs_emit(buf, "%d\n", result);
}
static ssize_t gpu_mux_mode_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result, err;
u32 optimus;
err = kstrtou32(buf, 10, &optimus);
if (err)
return err;
if (optimus > 1)
return -EINVAL;
if (asus->dgpu_disable_available) {
result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_DGPU);
if (result < 0)
/* An error here may signal greater failure of GPU handling */
return result;
if (result && !optimus) {
err = -ENODEV;
pr_warn("Can not switch MUX to dGPU mode when dGPU is disabled: %d\n", err);
return err;
}
}
if (asus->egpu_enable_available) {
result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_EGPU);
if (result < 0)
/* An error here may signal greater failure of GPU handling */
return result;
if (result && !optimus) {
err = -ENODEV;
pr_warn("Can not switch MUX to dGPU mode when eGPU is enabled: %d\n", err);
return err;
}
}
err = asus_wmi_set_devstate(asus->gpu_mux_dev, optimus, &result);
if (err) {
dev_err(dev, "Failed to set GPU MUX mode: %d\n", err);
return err;
}
/* !1 is considered a fail by ASUS */
if (result != 1) {
dev_warn(dev, "Failed to set GPU MUX mode (result): 0x%x\n", result);
return -EIO;
}
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "gpu_mux_mode");
return count;
}
static DEVICE_ATTR_RW(gpu_mux_mode);
/* TUF Laptop Keyboard RGB Modes **********************************************/
static ssize_t kbd_rgb_mode_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
u32 cmd, mode, r, g, b, speed;
int err;
if (sscanf(buf, "%d %d %d %d %d %d", &cmd, &mode, &r, &g, &b, &speed) != 6)
return -EINVAL;
/* B3 is set and B4 is save to BIOS */
switch (cmd) {
case 0:
cmd = 0xb3;
break;
case 1:
cmd = 0xb4;
break;
default:
return -EINVAL;
}
/* These are the known usable modes across all TUF/ROG */
if (mode >= 12 || mode == 9)
mode = 10;
switch (speed) {
case 0:
speed = 0xe1;
break;
case 1:
speed = 0xeb;
break;
case 2:
speed = 0xf5;
break;
default:
speed = 0xeb;
}
err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, asus->kbd_rgb_dev,
cmd | (mode << 8) | (r << 16) | (g << 24), b | (speed << 8), NULL);
if (err)
return err;
return count;
}
static DEVICE_ATTR_WO(kbd_rgb_mode);
static DEVICE_STRING_ATTR_RO(kbd_rgb_mode_index, 0444,
"cmd mode red green blue speed");
static struct attribute *kbd_rgb_mode_attrs[] = {
&dev_attr_kbd_rgb_mode.attr,
&dev_attr_kbd_rgb_mode_index.attr.attr,
NULL,
};
static const struct attribute_group kbd_rgb_mode_group = {
.attrs = kbd_rgb_mode_attrs,
};
/* TUF Laptop Keyboard RGB State **********************************************/
static ssize_t kbd_rgb_state_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
u32 flags, cmd, boot, awake, sleep, keyboard;
int err;
if (sscanf(buf, "%d %d %d %d %d", &cmd, &boot, &awake, &sleep, &keyboard) != 5)
return -EINVAL;
if (cmd)
cmd = BIT(2);
flags = 0;
if (boot)
flags |= BIT(1);
if (awake)
flags |= BIT(3);
if (sleep)
flags |= BIT(5);
if (keyboard)
flags |= BIT(7);
/* 0xbd is the required default arg0 for the method. Nothing happens otherwise */
err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS,
ASUS_WMI_DEVID_TUF_RGB_STATE, 0xbd | cmd << 8 | (flags << 16), 0, NULL);
if (err)
return err;
return count;
}
static DEVICE_ATTR_WO(kbd_rgb_state);
static DEVICE_STRING_ATTR_RO(kbd_rgb_state_index, 0444,
"cmd boot awake sleep keyboard");
static struct attribute *kbd_rgb_state_attrs[] = {
&dev_attr_kbd_rgb_state.attr,
&dev_attr_kbd_rgb_state_index.attr.attr,
NULL,
};
static const struct attribute_group kbd_rgb_state_group = {
.attrs = kbd_rgb_state_attrs,
};
static const struct attribute_group *kbd_rgb_mode_groups[] = {
NULL,
NULL,
NULL,
};
/* Tunable: PPT: Intel=PL1, AMD=SPPT *****************************************/
static ssize_t ppt_pl2_sppt_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result, err;
u32 value;
result = kstrtou32(buf, 10, &value);
if (result)
return result;
if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
return -EINVAL;
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PL2_SPPT, value, &result);
if (err) {
pr_warn("Failed to set ppt_pl2_sppt: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set ppt_pl2_sppt (result): 0x%x\n", result);
return -EIO;
}
asus->ppt_pl2_sppt = value;
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl2_sppt");
return count;
}
static ssize_t ppt_pl2_sppt_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%u\n", asus->ppt_pl2_sppt);
}
static DEVICE_ATTR_RW(ppt_pl2_sppt);
/* Tunable: PPT, Intel=PL1, AMD=SPL ******************************************/
static ssize_t ppt_pl1_spl_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result, err;
u32 value;
result = kstrtou32(buf, 10, &value);
if (result)
return result;
if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
return -EINVAL;
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PL1_SPL, value, &result);
if (err) {
pr_warn("Failed to set ppt_pl1_spl: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set ppt_pl1_spl (result): 0x%x\n", result);
return -EIO;
}
asus->ppt_pl1_spl = value;
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl1_spl");
return count;
}
static ssize_t ppt_pl1_spl_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%u\n", asus->ppt_pl1_spl);
}
static DEVICE_ATTR_RW(ppt_pl1_spl);
/* Tunable: PPT APU FPPT ******************************************************/
static ssize_t ppt_fppt_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result, err;
u32 value;
result = kstrtou32(buf, 10, &value);
if (result)
return result;
if (value < PPT_TOTAL_MIN || value > PPT_TOTAL_MAX)
return -EINVAL;
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_FPPT, value, &result);
if (err) {
pr_warn("Failed to set ppt_fppt: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set ppt_fppt (result): 0x%x\n", result);
return -EIO;
}
asus->ppt_fppt = value;
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_fpu_sppt");
return count;
}
static ssize_t ppt_fppt_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%u\n", asus->ppt_fppt);
}
static DEVICE_ATTR_RW(ppt_fppt);
/* Tunable: PPT APU SPPT *****************************************************/
static ssize_t ppt_apu_sppt_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result, err;
u32 value;
result = kstrtou32(buf, 10, &value);
if (result)
return result;
if (value < PPT_CPU_MIN || value > PPT_CPU_MAX)
return -EINVAL;
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_APU_SPPT, value, &result);
if (err) {
pr_warn("Failed to set ppt_apu_sppt: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set ppt_apu_sppt (result): 0x%x\n", result);
return -EIO;
}
asus->ppt_apu_sppt = value;
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_apu_sppt");
return count;
}
static ssize_t ppt_apu_sppt_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%u\n", asus->ppt_apu_sppt);
}
static DEVICE_ATTR_RW(ppt_apu_sppt);
/* Tunable: PPT platform SPPT ************************************************/
static ssize_t ppt_platform_sppt_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result, err;
u32 value;
result = kstrtou32(buf, 10, &value);
if (result)
return result;
if (value < PPT_CPU_MIN || value > PPT_CPU_MAX)
return -EINVAL;
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PPT_PLAT_SPPT, value, &result);
if (err) {
pr_warn("Failed to set ppt_platform_sppt: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set ppt_platform_sppt (result): 0x%x\n", result);
return -EIO;
}
asus->ppt_platform_sppt = value;
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_platform_sppt");
return count;
}
static ssize_t ppt_platform_sppt_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%u\n", asus->ppt_platform_sppt);
}
static DEVICE_ATTR_RW(ppt_platform_sppt);
/* Tunable: NVIDIA dynamic boost *********************************************/
static ssize_t nv_dynamic_boost_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result, err;
u32 value;
result = kstrtou32(buf, 10, &value);
if (result)
return result;
if (value < NVIDIA_BOOST_MIN || value > NVIDIA_BOOST_MAX)
return -EINVAL;
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_NV_DYN_BOOST, value, &result);
if (err) {
pr_warn("Failed to set nv_dynamic_boost: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set nv_dynamic_boost (result): 0x%x\n", result);
return -EIO;
}
asus->nv_dynamic_boost = value;
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_dynamic_boost");
return count;
}
static ssize_t nv_dynamic_boost_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%u\n", asus->nv_dynamic_boost);
}
static DEVICE_ATTR_RW(nv_dynamic_boost);
/* Tunable: NVIDIA temperature target ****************************************/
static ssize_t nv_temp_target_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result, err;
u32 value;
result = kstrtou32(buf, 10, &value);
if (result)
return result;
if (value < NVIDIA_TEMP_MIN || value > NVIDIA_TEMP_MAX)
return -EINVAL;
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_NV_THERM_TARGET, value, &result);
if (err) {
pr_warn("Failed to set nv_temp_target: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set nv_temp_target (result): 0x%x\n", result);
return -EIO;
}
asus->nv_temp_target = value;
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_temp_target");
return count;
}
static ssize_t nv_temp_target_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%u\n", asus->nv_temp_target);
}
static DEVICE_ATTR_RW(nv_temp_target);
/* Ally MCU Powersave ********************************************************/
static ssize_t mcu_powersave_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result;
result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MCU_POWERSAVE);
if (result < 0)
return result;
return sysfs_emit(buf, "%d\n", result);
}
static ssize_t mcu_powersave_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int result, err;
u32 enable;
struct asus_wmi *asus = dev_get_drvdata(dev);
result = kstrtou32(buf, 10, &enable);
if (result)
return result;
if (enable > 1)
return -EINVAL;
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MCU_POWERSAVE, enable, &result);
if (err) {
pr_warn("Failed to set MCU powersave: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set MCU powersave (result): 0x%x\n", result);
return -EIO;
}
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mcu_powersave");
return count;
}
static DEVICE_ATTR_RW(mcu_powersave);
/* Battery ********************************************************************/
/* The battery maximum charging percentage */
static int charge_end_threshold;
static ssize_t charge_control_end_threshold_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int value, ret, rv;
ret = kstrtouint(buf, 10, &value);
if (ret)
return ret;
if (value < 0 || value > 100)
return -EINVAL;
ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, value, &rv);
if (ret)
return ret;
if (rv != 1)
return -EIO;
/* There isn't any method in the DSDT to read the threshold, so we
* save the threshold.
*/
charge_end_threshold = value;
return count;
}
static ssize_t charge_control_end_threshold_show(struct device *device,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "%d\n", charge_end_threshold);
}
static DEVICE_ATTR_RW(charge_control_end_threshold);
static int asus_wmi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
{
/* The WMI method does not provide a way to specific a battery, so we
* just assume it is the first battery.
* Note: On some newer ASUS laptops (Zenbook UM431DA), the primary/first
* battery is named BATT.
*/
if (strcmp(battery->desc->name, "BAT0") != 0 &&
strcmp(battery->desc->name, "BAT1") != 0 &&
strcmp(battery->desc->name, "BATC") != 0 &&
strcmp(battery->desc->name, "BATT") != 0)
return -ENODEV;
if (device_create_file(&battery->dev,
&dev_attr_charge_control_end_threshold))
return -ENODEV;
/* The charge threshold is only reset when the system is power cycled,
* and we can't get the current threshold so let set it to 100% when
* a battery is added.
*/
asus_wmi_set_devstate(ASUS_WMI_DEVID_RSOC, 100, NULL);
charge_end_threshold = 100;
return 0;
}
static int asus_wmi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
{
device_remove_file(&battery->dev,
&dev_attr_charge_control_end_threshold);
return 0;
}
static struct acpi_battery_hook battery_hook = {
.add_battery = asus_wmi_battery_add,
.remove_battery = asus_wmi_battery_remove,
.name = "ASUS Battery Extension",
};
static void asus_wmi_battery_init(struct asus_wmi *asus)
{
asus->battery_rsoc_available = false;
if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_RSOC)) {
asus->battery_rsoc_available = true;
battery_hook_register(&battery_hook);
}
}
static void asus_wmi_battery_exit(struct asus_wmi *asus)
{
if (asus->battery_rsoc_available)
battery_hook_unregister(&battery_hook);
}
/* 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 Asus 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 asus_wmi *asus;
asus = container_of(work, struct asus_wmi, tpd_led_work);
ctrl_param = asus->tpd_led_wk;
asus_wmi_set_devstate(ASUS_WMI_DEVID_TOUCHPAD_LED, ctrl_param, NULL);
}
static void tpd_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct asus_wmi *asus;
asus = container_of(led_cdev, struct asus_wmi, tpd_led);
asus->tpd_led_wk = !!value;
queue_work(asus->led_workqueue, &asus->tpd_led_work);
}
static int read_tpd_led_state(struct asus_wmi *asus)
{
return asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_TOUCHPAD_LED);
}
static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
{
struct asus_wmi *asus;
asus = container_of(led_cdev, struct asus_wmi, tpd_led);
return read_tpd_led_state(asus);
}
static void kbd_led_update(struct asus_wmi *asus)
{
int ctrl_param = 0;
ctrl_param = 0x80 | (asus->kbd_led_wk & 0x7F);
asus_wmi_set_devstate(ASUS_WMI_DEVID_KBD_BACKLIGHT, ctrl_param, NULL);
}
static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
{
int retval;
/*
* bits 0-2: level
* bit 7: light on/off
* bit 8-10: environment (0: dark, 1: normal, 2: light)
* bit 17: status unknown
*/
retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
0xFFFF);
/* Unknown status is considered as off */
if (retval == 0x8000)
retval = 0;
if (retval < 0)
return retval;
if (level)
*level = retval & 0x7F;
if (env)
*env = (retval >> 8) & 0x7F;
return 0;
}
static void do_kbd_led_set(struct led_classdev *led_cdev, int value)
{
struct asus_wmi *asus;
int max_level;
asus = container_of(led_cdev, struct asus_wmi, kbd_led);
max_level = asus->kbd_led.max_brightness;
asus->kbd_led_wk = clamp_val(value, 0, max_level);
kbd_led_update(asus);
}
static void kbd_led_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
/* Prevent disabling keyboard backlight on module unregister */
if (led_cdev->flags & LED_UNREGISTERING)
return;
do_kbd_led_set(led_cdev, value);
}
static void kbd_led_set_by_kbd(struct asus_wmi *asus, enum led_brightness value)
{
struct led_classdev *led_cdev = &asus->kbd_led;
do_kbd_led_set(led_cdev, value);
led_classdev_notify_brightness_hw_changed(led_cdev, asus->kbd_led_wk);
}
static enum led_brightness kbd_led_get(struct led_classdev *led_cdev)
{
struct asus_wmi *asus;
int retval, value;
asus = container_of(led_cdev, struct asus_wmi, kbd_led);
retval = kbd_led_read(asus, &value, NULL);
if (retval < 0)
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 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 micmute_led_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
int state = brightness != LED_OFF;
int err;
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MICMUTE_LED, state, NULL);
return err < 0 ? err : 0;
}
static void asus_wmi_led_exit(struct asus_wmi *asus)
{
led_classdev_unregister(&asus->kbd_led);
led_classdev_unregister(&asus->tpd_led);
led_classdev_unregister(&asus->wlan_led);
led_classdev_unregister(&asus->lightbar_led);
led_classdev_unregister(&asus->micmute_led);
if (asus->led_workqueue)
destroy_workqueue(asus->led_workqueue);
}
static int asus_wmi_led_init(struct asus_wmi *asus)
{
int rv = 0, num_rgb_groups = 0, led_val;
if (asus->kbd_rgb_dev)
kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_mode_group;
if (asus->kbd_rgb_state_available)
kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_state_group;
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;
if (num_rgb_groups != 0)
asus->kbd_led.groups = kbd_rgb_mode_groups;
rv = led_classdev_register(&asus->platform_device->dev,
&asus->kbd_led);
if (rv)
goto error;
}
if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_WIRELESS_LED)
&& (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 (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_LIGHTBAR)) {
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);
}
if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MICMUTE_LED)) {
asus->micmute_led.name = "platform::micmute";
asus->micmute_led.max_brightness = 1;
asus->micmute_led.brightness_set_blocking = micmute_led_set;
asus->micmute_led.default_trigger = "audio-micmute";
rv = led_classdev_register(&asus->platform_device->dev,
&asus->micmute_led);
if (rv)
goto error;
}
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_FAILURE(status))
return -ENODEV;
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);
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_FAILURE(status))
return;
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;
}
/* Panel Overdrive ************************************************************/
static ssize_t panel_od_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result;
result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_PANEL_OD);
if (result < 0)
return result;
return sysfs_emit(buf, "%d\n", result);
}
static ssize_t panel_od_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int result, err;
u32 overdrive;
struct asus_wmi *asus = dev_get_drvdata(dev);
result = kstrtou32(buf, 10, &overdrive);
if (result)
return result;
if (overdrive > 1)
return -EINVAL;
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_PANEL_OD, overdrive, &result);
if (err) {
pr_warn("Failed to set panel overdrive: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set panel overdrive (result): 0x%x\n", result);
return -EIO;
}
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "panel_od");
return count;
}
static DEVICE_ATTR_RW(panel_od);
/* Bootup sound ***************************************************************/
static ssize_t boot_sound_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int result;
result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BOOT_SOUND);
if (result < 0)
return result;
return sysfs_emit(buf, "%d\n", result);
}
static ssize_t boot_sound_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int result, err;
u32 snd;
struct asus_wmi *asus = dev_get_drvdata(dev);
result = kstrtou32(buf, 10, &snd);
if (result)
return result;
if (snd > 1)
return -EINVAL;
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BOOT_SOUND, snd, &result);
if (err) {
pr_warn("Failed to set boot sound: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set panel boot sound (result): 0x%x\n", result);
return -EIO;
}
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "boot_sound");
return count;
}
static DEVICE_ATTR_RW(boot_sound);
/* Mini-LED mode **************************************************************/
static ssize_t mini_led_mode_show(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->mini_led_dev_id, &value);
if (err < 0)
return err;
value = value & ASUS_MINI_LED_MODE_MASK;
/*
* Remap the mode values to match previous generation mini-led. The last gen
* WMI 0 == off, while on this version WMI 2 ==off (flipped).
*/
if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
switch (value) {
case ASUS_MINI_LED_2024_WEAK:
value = ASUS_MINI_LED_ON;
break;
case ASUS_MINI_LED_2024_STRONG:
value = ASUS_MINI_LED_STRONG_MODE;
break;
case ASUS_MINI_LED_2024_OFF:
value = ASUS_MINI_LED_OFF;
break;
}
}
return sysfs_emit(buf, "%d\n", value);
}
static ssize_t mini_led_mode_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int result, err;
u32 mode;
struct asus_wmi *asus = dev_get_drvdata(dev);
result = kstrtou32(buf, 10, &mode);
if (result)
return result;
if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE &&
mode > ASUS_MINI_LED_ON)
return -EINVAL;
if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2 &&
mode > ASUS_MINI_LED_STRONG_MODE)
return -EINVAL;
/*
* Remap the mode values so expected behaviour is the same as the last
* generation of mini-LED with 0 == off, 1 == on.
*/
if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
switch (mode) {
case ASUS_MINI_LED_OFF:
mode = ASUS_MINI_LED_2024_OFF;
break;
case ASUS_MINI_LED_ON:
mode = ASUS_MINI_LED_2024_WEAK;
break;
case ASUS_MINI_LED_STRONG_MODE:
mode = ASUS_MINI_LED_2024_STRONG;
break;
}
}
err = asus_wmi_set_devstate(asus->mini_led_dev_id, mode, &result);
if (err) {
pr_warn("Failed to set mini-LED: %d\n", err);
return err;
}
if (result > 1) {
pr_warn("Failed to set mini-LED mode (result): 0x%x\n", result);
return -EIO;
}
sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mini_led_mode");
return count;
}
static DEVICE_ATTR_RW(mini_led_mode);
static ssize_t available_mini_led_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
switch (asus->mini_led_dev_id) {
case ASUS_WMI_DEVID_MINI_LED_MODE:
return sysfs_emit(buf, "0 1\n");
case ASUS_WMI_DEVID_MINI_LED_MODE2:
return sysfs_emit(buf, "0 1 2\n");
}
return sysfs_emit(buf, "0\n");
}
static DEVICE_ATTR_RO(available_mini_led_mode);
/* 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));
pci_dev_put(xhci_pdev);
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_agfn_fan_speed_read(struct asus_wmi *asus, int fan,
int *speed)
{
struct agfn_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_agfn_fan_speed_write(struct asus_wmi *asus, int fan,
int *speed)
{
struct agfn_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->agfn_pwm = *speed;
return 0;
}
/*
* Check if we can read the speed of one fan. If true we assume we can also
* control it.
*/
static bool asus_wmi_has_agfn_fan(struct asus_wmi *asus)
{
int status;
int speed;
u32 value;
status = asus_agfn_fan_speed_read(asus, 1, &speed);
if (status != 0)
return false;
status = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
if (status != 0)
return false;
/*
* 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
*/
return !(value == ASUS_WMI_UNSUPPORTED_METHOD || value & 0xFFF80000
|| (!asus->sfun && !(value & ASUS_WMI_DSTS_PRESENCE_BIT)));
}
static int asus_fan_set_auto(struct asus_wmi *asus)
{
int status;
u32 retval;
switch (asus->fan_type) {
case FAN_TYPE_SPEC83:
status = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
0, &retval);
if (status)
return status;
if (retval != 1)
return -EIO;
break;
case FAN_TYPE_AGFN:
status = asus_agfn_fan_speed_write(asus, 0, NULL);
if (status)
return -ENXIO;
break;
default:
return -ENXIO;
}
/*
* Modern models like the G713 also have GPU fan control (this is not AGFN)
*/
if (asus->gpu_fan_type == FAN_TYPE_SPEC83) {
status = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
0, &retval);
if (status)
return status;
if (retval != 1)
return -EIO;
}
return 0;
}
static ssize_t pwm1_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int err;
int value;
/* If we already set a value then just return it */
if (asus->agfn_pwm >= 0)
return sysfs_emit(buf, "%d\n", asus->agfn_pwm);
/*
* If we haven't set already set a value through the AGFN interface,
* we read a current value through the (now-deprecated) FAN_CTRL device.
*/
err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_CTRL, &value);
if (err < 0)
return err;
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;
}
return sysfs_emit(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_agfn_fan_speed_write(asus, 1, &value);
if (state)
pr_warn("Setting fan speed failed: %d\n", state);
else
asus->fan_pwm_mode = ASUS_FAN_CTRL_MANUAL;
return count;
}
static ssize_t fan1_input_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int value;
int ret;
switch (asus->fan_type) {
case FAN_TYPE_SPEC83:
ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL,
&value);
if (ret < 0)
return ret;
value &= 0xffff;
break;
case FAN_TYPE_AGFN:
/* no speed readable on manual mode */
if (asus->fan_pwm_mode == ASUS_FAN_CTRL_MANUAL)
return -ENXIO;
ret = asus_agfn_fan_speed_read(asus, 1, &value);
if (ret) {
pr_warn("reading fan speed failed: %d\n", ret);
return -ENXIO;
}
break;
default:
return -ENXIO;
}
return sysfs_emit(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);
/*
* Just read back the cached pwm mode.
*
* For the CPU_FAN device, the spec indicates that we should be
* able to read the device status and consult bit 19 to see if we
* are in Full On or Automatic mode. However, this does not work
* in practice on X532FL at least (the bit is always 0) and there's
* also nothing in the DSDT to indicate that this behaviour exists.
*/
return sysfs_emit(buf, "%d\n", asus->fan_pwm_mode);
}
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 value;
int ret;
u32 retval;
ret = kstrtouint(buf, 10, &state);
if (ret)
return ret;
if (asus->fan_type == FAN_TYPE_SPEC83) {
switch (state) { /* standard documented hwmon values */
case ASUS_FAN_CTRL_FULLSPEED:
value = 1;
break;
case ASUS_FAN_CTRL_AUTO:
value = 0;
break;
default:
return -EINVAL;
}
ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_CPU_FAN_CTRL,
value, &retval);
if (ret)
return ret;
if (retval != 1)
return -EIO;
} else if (asus->fan_type == FAN_TYPE_AGFN) {
switch (state) {
case ASUS_FAN_CTRL_MANUAL:
break;
case ASUS_FAN_CTRL_AUTO:
status = asus_fan_set_auto(asus);
if (status)
return status;
break;
default:
return -EINVAL;
}
}
asus->fan_pwm_mode = state;
/* Must set to disabled if mode is toggled */
if (asus->cpu_fan_curve_available)
asus->custom_fan_curves[FAN_CURVE_DEV_CPU].enabled = false;
if (asus->gpu_fan_curve_available)
asus->custom_fan_curves[FAN_CURVE_DEV_GPU].enabled = false;
if (asus->mid_fan_curve_available)
asus->custom_fan_curves[FAN_CURVE_DEV_MID].enabled = false;
return count;
}
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;
return sysfs_emit(buf, "%ld\n",
deci_kelvin_to_millicelsius(value & 0xFFFF));
}
/* GPU fan on modern ROG laptops */
static ssize_t fan2_input_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int value;
int ret;
ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL, &value);
if (ret < 0)
return ret;
value &= 0xffff;
return sysfs_emit(buf, "%d\n", value * 100);
}
/* Middle/Center fan on modern ROG laptops */
static ssize_t fan3_input_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int value;
int ret;
ret = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_MID_FAN_CTRL, &value);
if (ret < 0)
return ret;
value &= 0xffff;
return sysfs_emit(buf, "%d\n", value * 100);
}
static ssize_t pwm2_enable_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%d\n", asus->gpu_fan_pwm_mode);
}
static ssize_t pwm2_enable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int state;
int value;
int ret;
u32 retval;
ret = kstrtouint(buf, 10, &state);
if (ret)
return ret;
switch (state) { /* standard documented hwmon values */
case ASUS_FAN_CTRL_FULLSPEED:
value = 1;
break;
case ASUS_FAN_CTRL_AUTO:
value = 0;
break;
default:
return -EINVAL;
}
ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_FAN_CTRL,
value, &retval);
if (ret)
return ret;
if (retval != 1)
return -EIO;
asus->gpu_fan_pwm_mode = state;
return count;
}
static ssize_t pwm3_enable_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%d\n", asus->mid_fan_pwm_mode);
}
static ssize_t pwm3_enable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
int state;
int value;
int ret;
u32 retval;
ret = kstrtouint(buf, 10, &state);
if (ret)
return ret;
switch (state) { /* standard documented hwmon values */
case ASUS_FAN_CTRL_FULLSPEED:
value = 1;
break;
case ASUS_FAN_CTRL_AUTO:
value = 0;
break;
default:
return -EINVAL;
}
ret = asus_wmi_set_devstate(ASUS_WMI_DEVID_MID_FAN_CTRL,
value, &retval);
if (ret)
return ret;
if (retval != 1)
return -EIO;
asus->mid_fan_pwm_mode = state;
return count;
}
/* Fan1 */
static DEVICE_ATTR_RW(pwm1);
static DEVICE_ATTR_RW(pwm1_enable);
static DEVICE_ATTR_RO(fan1_input);
static DEVICE_STRING_ATTR_RO(fan1_label, 0444, ASUS_FAN_DESC);
/* Fan2 - GPU fan */
static DEVICE_ATTR_RW(pwm2_enable);
static DEVICE_ATTR_RO(fan2_input);
static DEVICE_STRING_ATTR_RO(fan2_label, 0444, ASUS_GPU_FAN_DESC);
/* Fan3 - Middle/center fan */
static DEVICE_ATTR_RW(pwm3_enable);
static DEVICE_ATTR_RO(fan3_input);
static DEVICE_STRING_ATTR_RO(fan3_label, 0444, ASUS_MID_FAN_DESC);
/* 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_pwm2_enable.attr,
&dev_attr_pwm3_enable.attr,
&dev_attr_fan1_input.attr,
&dev_attr_fan1_label.attr.attr,
&dev_attr_fan2_input.attr,
&dev_attr_fan2_label.attr.attr,
&dev_attr_fan3_input.attr,
&dev_attr_fan3_label.attr.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 = kobj_to_dev(kobj);
struct asus_wmi *asus = dev_get_drvdata(dev->parent);
u32 value = ASUS_WMI_UNSUPPORTED_METHOD;
if (attr == &dev_attr_pwm1.attr) {
if (asus->fan_type != FAN_TYPE_AGFN)
return 0;
} else if (attr == &dev_attr_fan1_input.attr
|| attr == &dev_attr_fan1_label.attr.attr
|| attr == &dev_attr_pwm1_enable.attr) {
if (asus->fan_type == FAN_TYPE_NONE)
return 0;
} else if (attr == &dev_attr_fan2_input.attr
|| attr == &dev_attr_fan2_label.attr.attr
|| attr == &dev_attr_pwm2_enable.attr) {
if (asus->gpu_fan_type == FAN_TYPE_NONE)
return 0;
} else if (attr == &dev_attr_fan3_input.attr
|| attr == &dev_attr_fan3_label.attr.attr
|| attr == &dev_attr_pwm3_enable.attr) {
if (asus->mid_fan_type == FAN_TYPE_NONE)
return 0;
} else if (attr == &dev_attr_temp1_input.attr) {
int err = asus_wmi_get_devstate(asus,
ASUS_WMI_DEVID_THERMAL_CTRL,
&value);
if (err < 0)
return 0; /* can't return negative here */
/*
* If the temperature value in deci-Kelvin is near the absolute
* zero temperature, something is clearly wrong
*/
if (value == 0 || value == 1)
return 0;
}
return attr->mode;
}
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)
{
asus->gpu_fan_type = FAN_TYPE_NONE;
asus->mid_fan_type = FAN_TYPE_NONE;
asus->fan_type = FAN_TYPE_NONE;
asus->agfn_pwm = -1;
if (asus->driver->quirks->wmi_ignore_fan)
asus->fan_type = FAN_TYPE_NONE;
else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CPU_FAN_CTRL))
asus->fan_type = FAN_TYPE_SPEC83;
else if (asus_wmi_has_agfn_fan(asus))
asus->fan_type = FAN_TYPE_AGFN;
/* Modern models like G713 also have GPU fan control */
if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_FAN_CTRL))
asus->gpu_fan_type = FAN_TYPE_SPEC83;
/* Some models also have a center/middle fan */
if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MID_FAN_CTRL))
asus->mid_fan_type = FAN_TYPE_SPEC83;
if (asus->fan_type == FAN_TYPE_NONE)
return -ENODEV;
asus_fan_set_auto(asus);
asus->fan_pwm_mode = ASUS_FAN_CTRL_AUTO;
return 0;
}
/* Fan mode *******************************************************************/
static int fan_boost_mode_check_present(struct asus_wmi *asus)
{
u32 result;
int err;
asus->fan_boost_mode_available = false;
err = asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_FAN_BOOST_MODE,
&result);
if (err) {
if (err == -ENODEV)
return 0;
else
return err;
}
if ((result & ASUS_WMI_DSTS_PRESENCE_BIT) &&
(result & ASUS_FAN_BOOST_MODES_MASK)) {
asus->fan_boost_mode_available = true;
asus->fan_boost_mode_mask = result & ASUS_FAN_BOOST_MODES_MASK;
}
return 0;
}
static int fan_boost_mode_write(struct asus_wmi *asus)
{
u32 retval;
u8 value;
int err;
value = asus->fan_boost_mode;
pr_info("Set fan boost mode: %u\n", value);
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_FAN_BOOST_MODE, value,
&retval);
sysfs_notify(&asus->platform_device->dev.kobj, NULL,
"fan_boost_mode");
if (err) {
pr_warn("Failed to set fan boost mode: %d\n", err);
return err;
}
if (retval != 1) {
pr_warn("Failed to set fan boost mode (retval): 0x%x\n",
retval);
return -EIO;
}
return 0;
}
static int fan_boost_mode_switch_next(struct asus_wmi *asus)
{
u8 mask = asus->fan_boost_mode_mask;
if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_NORMAL) {
if (mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK)
asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_OVERBOOST;
else if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
} else if (asus->fan_boost_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
if (mask & ASUS_FAN_BOOST_MODE_SILENT_MASK)
asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_SILENT;
else
asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
} else {
asus->fan_boost_mode = ASUS_FAN_BOOST_MODE_NORMAL;
}
return fan_boost_mode_write(asus);
}
static ssize_t fan_boost_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
return sysfs_emit(buf, "%d\n", asus->fan_boost_mode);
}
static ssize_t fan_boost_mode_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct asus_wmi *asus = dev_get_drvdata(dev);
u8 mask = asus->fan_boost_mode_mask;
u8 new_mode;
int result;
result = kstrtou8(buf, 10, &new_mode);
if (result < 0) {
pr_warn("Trying to store invalid value\n");
return result;
}
if (new_mode == ASUS_FAN_BOOST_MODE_OVERBOOST) {
if (!(mask & ASUS_FAN_BOOST_MODE_OVERBOOST_MASK))
return -EINVAL;
} else if (new_mode == ASUS_FAN_BOOST_MODE_SILENT) {
if (!(mask & ASUS_FAN_BOOST_MODE_SILENT_MASK))
return -EINVAL;
} else if (new_mode != ASUS_FAN_BOOST_MODE_NORMAL) {
return -EINVAL;
}
asus->fan_boost_mode = new_mode;
fan_boost_mode_write(asus);
return count;
}
// Fan boost mode: 0 - normal, 1 - overboost, 2 - silent
static DEVICE_ATTR_RW(fan_boost_mode);
/* Custom fan curves **********************************************************/
static void fan_curve_copy_from_buf(struct fan_curve_data *data, u8 *buf)
{
int i;
for (i = 0; i < FAN_CURVE_POINTS; i++) {
data->temps[i] = buf[i];
}
for (i = 0; i < FAN_CURVE_POINTS; i++) {
data->percents[i] =
255 * buf[i + FAN_CURVE_POINTS] / 100;
}
}
static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
{
struct fan_curve_data *curves;
u8 buf[FAN_CURVE_BUF_LEN];
int err, fan_idx;
u8 mode = 0;
if (asus->throttle_thermal_policy_available)
mode = asus->throttle_thermal_policy_mode;
/* DEVID_<C/G>PU_FAN_CURVE is switched for OVERBOOST vs SILENT */
if (mode == 2)
mode = 1;
else if (mode == 1)
mode = 2;
err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
FAN_CURVE_BUF_LEN);
if (err) {
pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
return err;
}
fan_idx = FAN_CURVE_DEV_CPU;
if (fan_dev == ASUS_WMI_DEVID_GPU_FAN_CURVE)
fan_idx = FAN_CURVE_DEV_GPU;
if (fan_dev == ASUS_WMI_DEVID_MID_FAN_CURVE)
fan_idx = FAN_CURVE_DEV_MID;
curves = &asus->custom_fan_curves[fan_idx];
curves->device_id = fan_dev;
fan_curve_copy_from_buf(curves, buf);
return 0;
}
/* Check if capability exists, and populate defaults */
static int fan_curve_check_present(struct asus_wmi *asus, bool *available,