| // 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/kernel.h> |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/types.h> |
| #include <linux/slab.h> |
| #include <linux/input.h> |
| #include <linux/input/sparse-keymap.h> |
| #include <linux/fb.h> |
| #include <linux/backlight.h> |
| #include <linux/leds.h> |
| #include <linux/rfkill.h> |
| #include <linux/pci.h> |
| #include <linux/pci_hotplug.h> |
| #include <linux/power_supply.h> |
| #include <linux/hwmon.h> |
| #include <linux/hwmon-sysfs.h> |
| #include <linux/debugfs.h> |
| #include <linux/seq_file.h> |
| #include <linux/platform_data/x86/asus-wmi.h> |
| #include <linux/platform_device.h> |
| #include <linux/thermal.h> |
| #include <linux/acpi.h> |
| #include <linux/dmi.h> |
| |
| #include <acpi/battery.h> |
| #include <acpi/video.h> |
| |
| #include "asus-wmi.h" |
| |
| MODULE_AUTHOR("Corentin Chary <corentin.chary@gmail.com>, " |
| "Yong Wang <yong.y.wang@intel.com>"); |
| MODULE_DESCRIPTION("Asus Generic WMI Driver"); |
| MODULE_LICENSE("GPL"); |
| |
| #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_BRTUP 0xc4 |
| #define NOTIFY_KBD_BRTDWN 0xc5 |
| #define NOTIFY_KBD_BRTTOGGLE 0xc7 |
| #define NOTIFY_KBD_FBM 0x99 |
| |
| #define ASUS_WMI_FNLOCK_BIOS_DISABLED BIT(0) |
| |
| #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 USB_INTEL_XUSB2PR 0xD0 |
| #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31 |
| |
| #define ASUS_ACPI_UID_ASUSWMI "ASUSWMI" |
| #define ASUS_ACPI_UID_ATK "ATK" |
| |
| #define WMI_EVENT_QUEUE_SIZE 0x10 |
| #define WMI_EVENT_QUEUE_END 0x1 |
| #define WMI_EVENT_MASK 0xFFFF |
| /* The WMI hotkey event value is always the same. */ |
| #define WMI_EVENT_VALUE_ATK 0xFF |
| |
| #define WMI_EVENT_MASK 0xFFFF |
| |
| static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL }; |
| |
| 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. */ |
| } __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 asus_wmi { |
| int dsts_id; |
| int spec; |
| int sfun; |
| bool wmi_event_queue; |
| |
| struct input_dev *inputdev; |
| struct backlight_device *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 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; |
| |
| enum fan_type fan_type; |
| int fan_pwm_mode; |
| int agfn_pwm; |
| |
| bool fan_boost_mode_available; |
| u8 fan_boost_mode_mask; |
| u8 fan_boost_mode; |
| |
| // The RSOC controls the maximum charging percentage. |
| bool battery_rsoc_available; |
| |
| 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; |
| }; |
| |
| /* Input **********************************************************************/ |
| |
| static int asus_wmi_input_init(struct asus_wmi *asus) |
| { |
| 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 = &asus->platform_device->dev; |
| set_bit(EV_REP, asus->inputdev->evbit); |
| |
| err = sparse_keymap_setup(asus->inputdev, asus->driver->keymap, NULL); |
| if (err) |
| goto err_free_dev; |
| |
| 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; |
| } |
| |
| /* 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_method_agfn(const struct acpi_buffer args) |
| { |
| struct acpi_buffer input; |
| u64 phys_addr; |
| u32 retval; |
| u32 status = -1; |
| |
| /* |
| * 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) |
| { |
| return asus_wmi_evaluate_method(asus->dsts_id, dev_id, 0, retval); |
| } |
| |
| 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); |
| } |
| |
| /* 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 sprintf(buf, "%d\n", charge_end_threshold); |
| } |
| |
| static DEVICE_ATTR_RW(charge_control_end_threshold); |
| |
| static int asus_wmi_battery_add(struct power_supply *battery) |
| { |
| /* The WMI method does not provide a way to specific a battery, so we |
| * just assume it is the first battery. |
| */ |
| if (strcmp(battery->desc->name, "BAT0") != 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) |
| { |
| 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 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 (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); |
| } |
| |
| 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; |
| } |
| |
| /* 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_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; |
| } |
| |
| |
| 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 sprintf(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 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_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 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); |
| |
| /* |
| * 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 sprintf(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; |
| 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 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 == &dev_attr_pwm1_enable.attr) { |
| if (asus->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->fan_type = FAN_TYPE_NONE; |
| asus->agfn_pwm = -1; |
| |
| 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; |
| |
| 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) |
| { |
| int err; |
| u8 value; |
| u32 retval; |
| |
| 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); |
| 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 scnprintf(buf, PAGE_SIZE, "%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) |
| { |
| int result; |
| u8 new_mode; |
| struct asus_wmi *asus = dev_get_drvdata(dev); |
| u8 mask = asus->fan_boost_mode_mask; |
| |
| 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 result; |
| } |
| |
| // Fan boost mode: 0 - normal, 1 - overboost, 2 - silent |
| static DEVICE_ATTR_RW(fan_boost_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_boost_mode_available && code == NOTIFY_KBD_FBM) { |
| fan_boost_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 ssize_t store_sys_wmi(struct asus_wmi *asus, int devid, |
| const char *buf, size_t count) |
| { |
| u32 retval; |
| int err, value; |
| |
| value = asus_wmi_get_devstate_simple(asus, devid); |
| if (value < 0) |
| return value; |
| |
| err = kstrtoint(buf, 0, &value); |
| if (err) |
| return err; |
| |
| err = asus_wmi_set_devstate(devid, value, &retval); |
| if (err < 0) |
| return err; |
| |
| return count; |
| } |
| |
| 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; |
| |
| rv = kstrtoint(buf, 0, &value); |
| if (rv) |
| return rv; |
| |
| 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_boost_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_boost_mode.attr) |
| ok = asus->fan_boost_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_boost_mode_check_present(asus); |
| if (err) |
| goto fail_fan_boost_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 */ |
| |
| 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_battery_init(asus); |
| |
| 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_boost_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_fan_set_auto(asus); |
| asus_wmi_battery_exit(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); |