linux/drivers/hid/hid-asus.c
Linus Torvalds 5516745311 platform-drivers-x86 for v5.3-1
ASUS WMI driver got a big refactoring in order to support the TUF Gaming
 laptops. Besides that, the regression with backlight being permanently off
 on various EeePC laptops has been fixed.
 
 Accelerometer on HP ProBook 450 G0 shows wrong measurements due to
 X axis being inverted. This has been fixed.
 
 Intel PMC core driver has been extended to be ACPI enumerated
 if the DSDT provides device with _HID "INT33A1". This allows
 to convert the driver to be pure platform and support new hardware
 purely based on ACPI DSDT.
 
 From now on the Intel Speed Select Technology is supported thru
 a corresponding driver. This driver provides an access to the features
 of the ISST, such as Performance Profile, Core Power, Base frequency and
 Turbo Frequency.
 
 Mellanox platform drivers has been refactored and now extended
 to support more systems, including new coming ones.
 
 The OLPC XO-1.75 platform is now supported.
 
 CB4063 Beckhoff Automation board is using PMC clocks,
 provided via pmc_atom driver, for ethernet controllers in a way
 that they can't be managed by the clock driver. The quirk
 has been extended to cover this case.
 
 Touchscreen on Chuwi Hi10 Plus tablet has been enabled. Meanwhile
 the information of Chuwi Hi10 Air has been fixed to cover more models
 based on the same platform.
 
 Xiaomi notebooks have WMI interface enabled. Thus, the driver to support it
 has been provided. It required some extension of the generic WMI library,
 which allows to propagate opaque context to the ->probe() of the
 individual drivers.
 
 This release includes debugfs clean up from Greg KH for several drivers
 that drop return code check and make debugfs absence or failure non-fatal.
 
 Miscellaneous fixes here and there, mostly for Acer WMI and
 various Intel drivers.
 
 The listed below commits are duplicated due to previously pushed fixes in v5.2 cycle:
 - 1dd93f873d platform/x86: asus-wmi: Only Tell EC the OS will handle display hotkeys from asus_nb_wmi
 - 89ae3a0736 platform/x86: intel-vbtn: Report switch events when event wakes device
 - fa882fc80d platform/x86: mlx-platform: Fix parent device in i2c-mux-reg device registration
 - 0bfcd24b39 platform/mellanox: mlxreg-hotplug: Add devm_free_irq call to remove flow
 
 The following is an automated git shortlog grouped by driver:
 
 acer-wmi:
  -  Mark expected switch fall-throughs
  -  no need to check return value of debugfs_create functions
 
 asus-nb-wmi:
  -  Add microphone mute key code
 
 asus-wmi:
  -  Use dev_get_drvdata()
  -  Do not disable keyboard backlight on unloading
  -  Switch fan boost mode
  -  Enhance detection of thermal data
  -  Organize code into sections
  -  Refactor error handling
  -  Support WMI event queue
  -  Refactor WMI event handling
  -  Improve DSTS WMI method ID detection
  -  Increase input buffer size of WMI methods
  -  Fix preserving keyboard backlight intensity on load
  -  Fix hwmon device cleanup
  -  no need to check return value of debugfs_create functions
  -  Only Tell EC the OS will handle display hotkeys from asus_nb_wmi
 
 dell-laptop:
  -  no need to check return value of debugfs_create functions
 
 hp_accel:
  -  Add support for HP ProBook 450 G0
 
 ideapad-laptop:
  -  no need to check return value of debugfs_create functions
 
 intel_int0002_vgpio:
  -  Get rid of custom ICPU() macro
 
 intel_menlow:
  -  avoid null pointer deference error
 
 intel_pmc:
  -  no need to check return value of debugfs_create functions
 
 intel_pmc_core:
  -  Attach using APCI HID "INT33A1"
  -  transform Pkg C-state residency from TSC ticks into microseconds
 
 intel_telemetry:
  -  no need to check return value of debugfs_create functions
 
 intel-vbtn:
  -  Report switch events when event wakes device
 
 ISST:
  -  Restore state on resume
  -  Add Intel Speed Select PUNIT MSR interface
  -  Add Intel Speed Select mailbox interface via MSRs
  -  Add Intel Speed Select mailbox interface via PCI
  -  Add Intel Speed Select mmio interface
  -  Add IOCTL to Translate Linux logical CPU to PUNIT CPU number
  -  Store per CPU information
  -  Add common API to register and handle ioctls
  -  Update ioctl-number.txt for Intel Speed Select interface
  -  A tool to validate Intel Speed Select commands
  -  Add .gitignore file
 
 MAINTAINERS:
  -  Update for Intel Speed Select Technology
 
 mlx-platform:
  -  Fix error handling in mlxplat_init()
  -  Add more reset cause attributes
  -  Modify DMI matching order
  -  Add regmap structure for the next generation systems
  -  Change API for i2c-mlxcpld driver activation
  -  Move regmap initialization before all drivers activation
  -  Fix parent device in i2c-mux-reg device registration
  -  Add new attribute for mlxreg-io sysfs interfaces
 
 pcengines-apuv2:
  -  Make two symbols static
  -  Fix PCENGINES_APU2 Kconfig warning
 
 OLPC:
  -  Add a config menu category for XO 1.75
  -  Require CONFIG_POWER_SUPPLY for XO-1.75 EC
  -  Fix olpc_xo175_ec_cmd() return value
  -  Make olpc_dt_compatible_match() static __init
  -  Add INPUT dependencies
  -  Fix build error without CONFIG_SPI
  -  Add a regulator for the DCON
  -  Add XO-1.75 EC driver
  -  Use BIT() and GENMASK() for event masks
  -  Avoid a warning if the EC didn't register yet
  -  Move EC-specific functionality out from x86
  -  Remove an unused include
  -  Add OLPC XO-1.75 EC bindings
 
 platform/mellanox:
  -  mlxreg-hotplug: Add devm_free_irq call to remove flow
 
 pmc_atom:
  -  Add CB4063 Beckhoff Automation board to critclk_systems DMI table
  -  no need to check return value of debugfs_create functions
 
 Kconfig:
  - Remove left-over BACKLIGHT_LCD_SUPPORT
 
 samsung-laptop:
  -  no need to check return value of debugfs_create functions
 
 touchscreen_dmi:
  -  Update Hi10 Air filter
  -  Add info for the CHUWI Hi10 Plus tablet.
 
 wmi:
  -  add Xiaomi WMI key driver
  -  add context argument to the probe function
  -  add context pointer field to struct wmi_device_id
  -  Add function to get _UID of WMI device
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Merge tag 'platform-drivers-x86-v5.3-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver updates from Andy Shevchenko:
 "Gathered a bunch of x86 platform driver changes. It's rather big,
  since includes two big refactors and completely new driver:

   - ASUS WMI driver got a big refactoring in order to support the TUF
     Gaming laptops. Besides that, the regression with backlight being
     permanently off on various EeePC laptops has been fixed.

   - Accelerometer on HP ProBook 450 G0 shows wrong measurements due to
     X axis being inverted. This has been fixed.

   - Intel PMC core driver has been extended to be ACPI enumerated if
     the DSDT provides device with _HID "INT33A1". This allows to
     convert the driver to be pure platform and support new hardware
     purely based on ACPI DSDT.

   - From now on the Intel Speed Select Technology is supported thru a
     corresponding driver. This driver provides an access to the
     features of the ISST, such as Performance Profile, Core Power, Base
     frequency and Turbo Frequency.

   - Mellanox platform drivers has been refactored and now extended to
     support more systems, including new coming ones.

   - The OLPC XO-1.75 platform is now supported.

   - CB4063 Beckhoff Automation board is using PMC clocks, provided via
     pmc_atom driver, for ethernet controllers in a way that they can't
     be managed by the clock driver. The quirk has been extended to
     cover this case.

   - Touchscreen on Chuwi Hi10 Plus tablet has been enabled. Meanwhile
     the information of Chuwi Hi10 Air has been fixed to cover more
     models based on the same platform.

   - Xiaomi notebooks have WMI interface enabled. Thus, the driver to
     support it has been provided. It required some extension of the
     generic WMI library, which allows to propagate opaque context to
     the ->probe() of the individual drivers.

  This release includes debugfs clean up from Greg KH for several
  drivers that drop return code check and make debugfs absence or
  failure non-fatal.

  Also miscellaneous fixes here and there, mostly for Acer WMI and
  various Intel drivers"

* tag 'platform-drivers-x86-v5.3-1' of git://git.infradead.org/linux-platform-drivers-x86: (74 commits)
  platform/x86: Fix PCENGINES_APU2 Kconfig warning
  tools/power/x86/intel-speed-select: Add .gitignore file
  platform/x86: mlx-platform: Fix error handling in mlxplat_init()
  platform/x86: intel_pmc_core: Attach using APCI HID "INT33A1"
  platform/x86: intel_pmc_core: transform Pkg C-state residency from TSC ticks into microseconds
  platform/x86: asus-wmi: Use dev_get_drvdata()
  Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
  platform/x86: mlx-platform: Add more reset cause attributes
  platform/x86: mlx-platform: Modify DMI matching order
  platform/x86: mlx-platform: Add regmap structure for the next generation systems
  platform/x86: mlx-platform: Change API for i2c-mlxcpld driver activation
  platform/x86: mlx-platform: Move regmap initialization before all drivers activation
  MAINTAINERS: Update for Intel Speed Select Technology
  tools/power/x86: A tool to validate Intel Speed Select commands
  platform/x86: ISST: Restore state on resume
  platform/x86: ISST: Add Intel Speed Select PUNIT MSR interface
  platform/x86: ISST: Add Intel Speed Select mailbox interface via MSRs
  platform/x86: ISST: Add Intel Speed Select mailbox interface via PCI
  platform/x86: ISST: Add Intel Speed Select mmio interface
  platform/x86: ISST: Add IOCTL to Translate Linux logical CPU to PUNIT CPU number
  ...
2019-07-14 16:51:47 -07:00

1080 lines
29 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Asus notebook built-in keyboard.
* Fixes small logical maximum to match usage maximum.
*
* Currently supported devices are:
* EeeBook X205TA
* VivoBook E200HA
*
* Copyright (c) 2016 Yusuke Fujimaki <usk.fujimaki@gmail.com>
*
* This module based on hid-ortek by
* Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com>
* Copyright (c) 2011 Jiri Kosina
*
* This module has been updated to add support for Asus i2c touchpad.
*
* Copyright (c) 2016 Brendan McGrath <redmcg@redmandi.dyndns.org>
* Copyright (c) 2016 Victor Vlasenko <victor.vlasenko@sysgears.com>
* Copyright (c) 2016 Frederik Wenigwieser <frederik.wenigwieser@gmail.com>
*/
/*
*/
#include <linux/dmi.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/platform_data/x86/asus-wmi.h>
#include <linux/input/mt.h>
#include <linux/usb.h> /* For to_usb_interface for T100 touchpad intf check */
#include <linux/power_supply.h>
#include "hid-ids.h"
MODULE_AUTHOR("Yusuke Fujimaki <usk.fujimaki@gmail.com>");
MODULE_AUTHOR("Brendan McGrath <redmcg@redmandi.dyndns.org>");
MODULE_AUTHOR("Victor Vlasenko <victor.vlasenko@sysgears.com>");
MODULE_AUTHOR("Frederik Wenigwieser <frederik.wenigwieser@gmail.com>");
MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
#define T100_TPAD_INTF 2
#define T100CHI_MOUSE_REPORT_ID 0x06
#define FEATURE_REPORT_ID 0x0d
#define INPUT_REPORT_ID 0x5d
#define FEATURE_KBD_REPORT_ID 0x5a
#define FEATURE_KBD_REPORT_SIZE 16
#define SUPPORT_KBD_BACKLIGHT BIT(0)
#define MAX_TOUCH_MAJOR 8
#define MAX_PRESSURE 128
#define BTN_LEFT_MASK 0x01
#define CONTACT_TOOL_TYPE_MASK 0x80
#define CONTACT_X_MSB_MASK 0xf0
#define CONTACT_Y_MSB_MASK 0x0f
#define CONTACT_TOUCH_MAJOR_MASK 0x07
#define CONTACT_PRESSURE_MASK 0x7f
#define BATTERY_REPORT_ID (0x03)
#define BATTERY_REPORT_SIZE (1 + 8)
#define BATTERY_LEVEL_MAX ((u8)255)
#define BATTERY_STAT_DISCONNECT (0)
#define BATTERY_STAT_CHARGING (1)
#define BATTERY_STAT_FULL (2)
#define QUIRK_FIX_NOTEBOOK_REPORT BIT(0)
#define QUIRK_NO_INIT_REPORTS BIT(1)
#define QUIRK_SKIP_INPUT_MAPPING BIT(2)
#define QUIRK_IS_MULTITOUCH BIT(3)
#define QUIRK_NO_CONSUMER_USAGES BIT(4)
#define QUIRK_USE_KBD_BACKLIGHT BIT(5)
#define QUIRK_T100_KEYBOARD BIT(6)
#define QUIRK_T100CHI BIT(7)
#define QUIRK_G752_KEYBOARD BIT(8)
#define QUIRK_T101HA_DOCK BIT(9)
#define QUIRK_T90CHI BIT(10)
#define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \
QUIRK_NO_INIT_REPORTS | \
QUIRK_NO_CONSUMER_USAGES)
#define I2C_TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \
QUIRK_SKIP_INPUT_MAPPING | \
QUIRK_IS_MULTITOUCH)
#define TRKID_SGN ((TRKID_MAX + 1) >> 1)
struct asus_kbd_leds {
struct led_classdev cdev;
struct hid_device *hdev;
struct work_struct work;
unsigned int brightness;
bool removed;
};
struct asus_touchpad_info {
int max_x;
int max_y;
int res_x;
int res_y;
int contact_size;
int max_contacts;
};
struct asus_drvdata {
unsigned long quirks;
struct hid_device *hdev;
struct input_dev *input;
struct asus_kbd_leds *kbd_backlight;
const struct asus_touchpad_info *tp;
bool enable_backlight;
struct power_supply *battery;
struct power_supply_desc battery_desc;
int battery_capacity;
int battery_stat;
bool battery_in_query;
unsigned long battery_next_query;
};
static int asus_report_battery(struct asus_drvdata *, u8 *, int);
static const struct asus_touchpad_info asus_i2c_tp = {
.max_x = 2794,
.max_y = 1758,
.contact_size = 5,
.max_contacts = 5,
};
static const struct asus_touchpad_info asus_t100ta_tp = {
.max_x = 2240,
.max_y = 1120,
.res_x = 30, /* units/mm */
.res_y = 27, /* units/mm */
.contact_size = 5,
.max_contacts = 5,
};
static const struct asus_touchpad_info asus_t100ha_tp = {
.max_x = 2640,
.max_y = 1320,
.res_x = 30, /* units/mm */
.res_y = 29, /* units/mm */
.contact_size = 5,
.max_contacts = 5,
};
static const struct asus_touchpad_info asus_t200ta_tp = {
.max_x = 3120,
.max_y = 1716,
.res_x = 30, /* units/mm */
.res_y = 28, /* units/mm */
.contact_size = 5,
.max_contacts = 5,
};
static const struct asus_touchpad_info asus_t100chi_tp = {
.max_x = 2640,
.max_y = 1320,
.res_x = 31, /* units/mm */
.res_y = 29, /* units/mm */
.contact_size = 3,
.max_contacts = 4,
};
static void asus_report_contact_down(struct asus_drvdata *drvdat,
int toolType, u8 *data)
{
struct input_dev *input = drvdat->input;
int touch_major, pressure, x, y;
x = (data[0] & CONTACT_X_MSB_MASK) << 4 | data[1];
y = drvdat->tp->max_y - ((data[0] & CONTACT_Y_MSB_MASK) << 8 | data[2]);
input_report_abs(input, ABS_MT_POSITION_X, x);
input_report_abs(input, ABS_MT_POSITION_Y, y);
if (drvdat->tp->contact_size < 5)
return;
if (toolType == MT_TOOL_PALM) {
touch_major = MAX_TOUCH_MAJOR;
pressure = MAX_PRESSURE;
} else {
touch_major = (data[3] >> 4) & CONTACT_TOUCH_MAJOR_MASK;
pressure = data[4] & CONTACT_PRESSURE_MASK;
}
input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major);
input_report_abs(input, ABS_MT_PRESSURE, pressure);
}
/* Required for Synaptics Palm Detection */
static void asus_report_tool_width(struct asus_drvdata *drvdat)
{
struct input_mt *mt = drvdat->input->mt;
struct input_mt_slot *oldest;
int oldid, count, i;
if (drvdat->tp->contact_size < 5)
return;
oldest = NULL;
oldid = mt->trkid;
count = 0;
for (i = 0; i < mt->num_slots; ++i) {
struct input_mt_slot *ps = &mt->slots[i];
int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID);
if (id < 0)
continue;
if ((id - oldid) & TRKID_SGN) {
oldest = ps;
oldid = id;
}
count++;
}
if (oldest) {
input_report_abs(drvdat->input, ABS_TOOL_WIDTH,
input_mt_get_value(oldest, ABS_MT_TOUCH_MAJOR));
}
}
static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size)
{
int i, toolType = MT_TOOL_FINGER;
u8 *contactData = data + 2;
if (size != 3 + drvdat->tp->contact_size * drvdat->tp->max_contacts)
return 0;
for (i = 0; i < drvdat->tp->max_contacts; i++) {
bool down = !!(data[1] & BIT(i+3));
if (drvdat->tp->contact_size >= 5)
toolType = contactData[3] & CONTACT_TOOL_TYPE_MASK ?
MT_TOOL_PALM : MT_TOOL_FINGER;
input_mt_slot(drvdat->input, i);
input_mt_report_slot_state(drvdat->input, toolType, down);
if (down) {
asus_report_contact_down(drvdat, toolType, contactData);
contactData += drvdat->tp->contact_size;
}
}
input_report_key(drvdat->input, BTN_LEFT, data[1] & BTN_LEFT_MASK);
asus_report_tool_width(drvdat);
input_mt_sync_frame(drvdat->input);
input_sync(drvdat->input);
return 1;
}
static int asus_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
if ((usage->hid & HID_USAGE_PAGE) == 0xff310000 &&
(usage->hid & HID_USAGE) != 0x00 && !usage->type) {
hid_warn(hdev, "Unmapped Asus vendor usagepage code 0x%02x\n",
usage->hid & HID_USAGE);
}
return 0;
}
static int asus_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->battery && data[0] == BATTERY_REPORT_ID)
return asus_report_battery(drvdata, data, size);
if (drvdata->tp && data[0] == INPUT_REPORT_ID)
return asus_report_input(drvdata, data, size);
return 0;
}
static int asus_kbd_set_report(struct hid_device *hdev, u8 *buf, size_t buf_size)
{
unsigned char *dmabuf;
int ret;
dmabuf = kmemdup(buf, buf_size, GFP_KERNEL);
if (!dmabuf)
return -ENOMEM;
ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, dmabuf,
buf_size, HID_FEATURE_REPORT,
HID_REQ_SET_REPORT);
kfree(dmabuf);
return ret;
}
static int asus_kbd_init(struct hid_device *hdev)
{
u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x41, 0x53, 0x55, 0x53, 0x20, 0x54,
0x65, 0x63, 0x68, 0x2e, 0x49, 0x6e, 0x63, 0x2e, 0x00 };
int ret;
ret = asus_kbd_set_report(hdev, buf, sizeof(buf));
if (ret < 0)
hid_err(hdev, "Asus failed to send init command: %d\n", ret);
return ret;
}
static int asus_kbd_get_functions(struct hid_device *hdev,
unsigned char *kbd_func)
{
u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x05, 0x20, 0x31, 0x00, 0x08 };
u8 *readbuf;
int ret;
ret = asus_kbd_set_report(hdev, buf, sizeof(buf));
if (ret < 0) {
hid_err(hdev, "Asus failed to send configuration command: %d\n", ret);
return ret;
}
readbuf = kzalloc(FEATURE_KBD_REPORT_SIZE, GFP_KERNEL);
if (!readbuf)
return -ENOMEM;
ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, readbuf,
FEATURE_KBD_REPORT_SIZE, HID_FEATURE_REPORT,
HID_REQ_GET_REPORT);
if (ret < 0) {
hid_err(hdev, "Asus failed to request functions: %d\n", ret);
kfree(readbuf);
return ret;
}
*kbd_func = readbuf[6];
kfree(readbuf);
return ret;
}
static void asus_kbd_backlight_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
cdev);
if (led->brightness == brightness)
return;
led->brightness = brightness;
schedule_work(&led->work);
}
static enum led_brightness asus_kbd_backlight_get(struct led_classdev *led_cdev)
{
struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds,
cdev);
return led->brightness;
}
static void asus_kbd_backlight_work(struct work_struct *work)
{
struct asus_kbd_leds *led = container_of(work, struct asus_kbd_leds, work);
u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4, 0x00 };
int ret;
if (led->removed)
return;
buf[4] = led->brightness;
ret = asus_kbd_set_report(led->hdev, buf, sizeof(buf));
if (ret < 0)
hid_err(led->hdev, "Asus failed to set keyboard backlight: %d\n", ret);
}
/* WMI-based keyboard backlight LED control (via asus-wmi driver) takes
* precedence. We only activate HID-based backlight control when the
* WMI control is not available.
*/
static bool asus_kbd_wmi_led_control_present(struct hid_device *hdev)
{
u32 value;
int ret;
if (!IS_ENABLED(CONFIG_ASUS_WMI))
return false;
ret = asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS,
ASUS_WMI_DEVID_KBD_BACKLIGHT, 0, &value);
hid_dbg(hdev, "WMI backlight check: rc %d value %x", ret, value);
if (ret)
return false;
return !!(value & ASUS_WMI_DSTS_PRESENCE_BIT);
}
static int asus_kbd_register_leds(struct hid_device *hdev)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
unsigned char kbd_func;
int ret;
/* Initialize keyboard */
ret = asus_kbd_init(hdev);
if (ret < 0)
return ret;
/* Get keyboard functions */
ret = asus_kbd_get_functions(hdev, &kbd_func);
if (ret < 0)
return ret;
/* Check for backlight support */
if (!(kbd_func & SUPPORT_KBD_BACKLIGHT))
return -ENODEV;
drvdata->kbd_backlight = devm_kzalloc(&hdev->dev,
sizeof(struct asus_kbd_leds),
GFP_KERNEL);
if (!drvdata->kbd_backlight)
return -ENOMEM;
drvdata->kbd_backlight->removed = false;
drvdata->kbd_backlight->brightness = 0;
drvdata->kbd_backlight->hdev = hdev;
drvdata->kbd_backlight->cdev.name = "asus::kbd_backlight";
drvdata->kbd_backlight->cdev.max_brightness = 3;
drvdata->kbd_backlight->cdev.brightness_set = asus_kbd_backlight_set;
drvdata->kbd_backlight->cdev.brightness_get = asus_kbd_backlight_get;
INIT_WORK(&drvdata->kbd_backlight->work, asus_kbd_backlight_work);
ret = devm_led_classdev_register(&hdev->dev, &drvdata->kbd_backlight->cdev);
if (ret < 0) {
/* No need to have this still around */
devm_kfree(&hdev->dev, drvdata->kbd_backlight);
}
return ret;
}
/*
* [0] REPORT_ID (same value defined in report descriptor)
* [1] rest battery level. range [0..255]
* [2]..[7] Bluetooth hardware address (MAC address)
* [8] charging status
* = 0 : AC offline / discharging
* = 1 : AC online / charging
* = 2 : AC online / fully charged
*/
static int asus_parse_battery(struct asus_drvdata *drvdata, u8 *data, int size)
{
u8 sts;
u8 lvl;
int val;
lvl = data[1];
sts = data[8];
drvdata->battery_capacity = ((int)lvl * 100) / (int)BATTERY_LEVEL_MAX;
switch (sts) {
case BATTERY_STAT_CHARGING:
val = POWER_SUPPLY_STATUS_CHARGING;
break;
case BATTERY_STAT_FULL:
val = POWER_SUPPLY_STATUS_FULL;
break;
case BATTERY_STAT_DISCONNECT:
default:
val = POWER_SUPPLY_STATUS_DISCHARGING;
break;
}
drvdata->battery_stat = val;
return 0;
}
static int asus_report_battery(struct asus_drvdata *drvdata, u8 *data, int size)
{
/* notify only the autonomous event by device */
if ((drvdata->battery_in_query == false) &&
(size == BATTERY_REPORT_SIZE))
power_supply_changed(drvdata->battery);
return 0;
}
static int asus_battery_query(struct asus_drvdata *drvdata)
{
u8 *buf;
int ret = 0;
buf = kmalloc(BATTERY_REPORT_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
drvdata->battery_in_query = true;
ret = hid_hw_raw_request(drvdata->hdev, BATTERY_REPORT_ID,
buf, BATTERY_REPORT_SIZE,
HID_INPUT_REPORT, HID_REQ_GET_REPORT);
drvdata->battery_in_query = false;
if (ret == BATTERY_REPORT_SIZE)
ret = asus_parse_battery(drvdata, buf, BATTERY_REPORT_SIZE);
else
ret = -ENODATA;
kfree(buf);
return ret;
}
static enum power_supply_property asus_battery_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_MODEL_NAME,
};
#define QUERY_MIN_INTERVAL (60 * HZ) /* 60[sec] */
static int asus_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct asus_drvdata *drvdata = power_supply_get_drvdata(psy);
int ret = 0;
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
case POWER_SUPPLY_PROP_CAPACITY:
if (time_before(drvdata->battery_next_query, jiffies)) {
drvdata->battery_next_query =
jiffies + QUERY_MIN_INTERVAL;
ret = asus_battery_query(drvdata);
if (ret)
return ret;
}
if (psp == POWER_SUPPLY_PROP_STATUS)
val->intval = drvdata->battery_stat;
else
val->intval = drvdata->battery_capacity;
break;
case POWER_SUPPLY_PROP_PRESENT:
val->intval = 1;
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
break;
case POWER_SUPPLY_PROP_MODEL_NAME:
val->strval = drvdata->hdev->name;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int asus_battery_probe(struct hid_device *hdev)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
struct power_supply_config pscfg = { .drv_data = drvdata };
int ret = 0;
drvdata->battery_capacity = 0;
drvdata->battery_stat = POWER_SUPPLY_STATUS_UNKNOWN;
drvdata->battery_in_query = false;
drvdata->battery_desc.properties = asus_battery_props;
drvdata->battery_desc.num_properties = ARRAY_SIZE(asus_battery_props);
drvdata->battery_desc.get_property = asus_battery_get_property;
drvdata->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
drvdata->battery_desc.use_for_apm = 0;
drvdata->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"asus-keyboard-%s-battery",
strlen(hdev->uniq) ?
hdev->uniq : dev_name(&hdev->dev));
if (!drvdata->battery_desc.name)
return -ENOMEM;
drvdata->battery_next_query = jiffies;
drvdata->battery = devm_power_supply_register(&hdev->dev,
&(drvdata->battery_desc), &pscfg);
if (IS_ERR(drvdata->battery)) {
ret = PTR_ERR(drvdata->battery);
drvdata->battery = NULL;
hid_err(hdev, "Unable to register battery device\n");
return ret;
}
power_supply_powers(drvdata->battery, &hdev->dev);
return ret;
}
static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi)
{
struct input_dev *input = hi->input;
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
/* T100CHI uses MULTI_INPUT, bind the touchpad to the mouse hid_input */
if (drvdata->quirks & QUIRK_T100CHI &&
hi->report->id != T100CHI_MOUSE_REPORT_ID)
return 0;
if (drvdata->tp) {
int ret;
input_set_abs_params(input, ABS_MT_POSITION_X, 0,
drvdata->tp->max_x, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y, 0,
drvdata->tp->max_y, 0, 0);
input_abs_set_res(input, ABS_MT_POSITION_X, drvdata->tp->res_x);
input_abs_set_res(input, ABS_MT_POSITION_Y, drvdata->tp->res_y);
if (drvdata->tp->contact_size >= 5) {
input_set_abs_params(input, ABS_TOOL_WIDTH, 0,
MAX_TOUCH_MAJOR, 0, 0);
input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0,
MAX_TOUCH_MAJOR, 0, 0);
input_set_abs_params(input, ABS_MT_PRESSURE, 0,
MAX_PRESSURE, 0, 0);
}
__set_bit(BTN_LEFT, input->keybit);
__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
ret = input_mt_init_slots(input, drvdata->tp->max_contacts,
INPUT_MT_POINTER);
if (ret) {
hid_err(hdev, "Asus input mt init slots failed: %d\n", ret);
return ret;
}
}
drvdata->input = input;
if (drvdata->enable_backlight &&
!asus_kbd_wmi_led_control_present(hdev) &&
asus_kbd_register_leds(hdev))
hid_warn(hdev, "Failed to initialize backlight.\n");
return 0;
}
#define asus_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \
max, EV_KEY, (c))
static int asus_input_mapping(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit,
int *max)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->quirks & QUIRK_SKIP_INPUT_MAPPING) {
/* Don't map anything from the HID report.
* We do it all manually in asus_input_configured
*/
return -1;
}
/*
* Ignore a bunch of bogus collections in the T100CHI descriptor.
* This avoids a bunch of non-functional hid_input devices getting
* created because of the T100CHI using HID_QUIRK_MULTI_INPUT.
*/
if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
if (field->application == (HID_UP_GENDESK | 0x0080) ||
usage->hid == (HID_UP_GENDEVCTRLS | 0x0024) ||
usage->hid == (HID_UP_GENDEVCTRLS | 0x0025) ||
usage->hid == (HID_UP_GENDEVCTRLS | 0x0026))
return -1;
/*
* We use the hid_input for the mouse report for the touchpad,
* keep the left button, to avoid the core removing it.
*/
if (field->application == HID_GD_MOUSE &&
usage->hid != (HID_UP_BUTTON | 1))
return -1;
}
/* ASUS-specific keyboard hotkeys */
if ((usage->hid & HID_USAGE_PAGE) == 0xff310000) {
set_bit(EV_REP, hi->input->evbit);
switch (usage->hid & HID_USAGE) {
case 0x10: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break;
case 0x20: asus_map_key_clear(KEY_BRIGHTNESSUP); break;
case 0x35: asus_map_key_clear(KEY_DISPLAY_OFF); break;
case 0x6c: asus_map_key_clear(KEY_SLEEP); break;
case 0x7c: asus_map_key_clear(KEY_MICMUTE); break;
case 0x82: asus_map_key_clear(KEY_CAMERA); break;
case 0x88: asus_map_key_clear(KEY_RFKILL); break;
case 0xb5: asus_map_key_clear(KEY_CALC); break;
case 0xc4: asus_map_key_clear(KEY_KBDILLUMUP); break;
case 0xc5: asus_map_key_clear(KEY_KBDILLUMDOWN); break;
/* ASUS touchpad toggle */
case 0x6b: asus_map_key_clear(KEY_F21); break;
/* ROG key */
case 0x38: asus_map_key_clear(KEY_PROG1); break;
/* Fn+C ASUS Splendid */
case 0xba: asus_map_key_clear(KEY_PROG2); break;
/* Fn+Space Power4Gear Hybrid */
case 0x5c: asus_map_key_clear(KEY_PROG3); break;
/* Fn+F5 "fan" symbol on FX503VD */
case 0x99: asus_map_key_clear(KEY_PROG4); break;
default:
/* ASUS lazily declares 256 usages, ignore the rest,
* as some make the keyboard appear as a pointer device. */
return -1;
}
/*
* Check and enable backlight only on devices with UsagePage ==
* 0xff31 to avoid initializing the keyboard firmware multiple
* times on devices with multiple HID descriptors but same
* PID/VID.
*/
if (drvdata->quirks & QUIRK_USE_KBD_BACKLIGHT)
drvdata->enable_backlight = true;
return 1;
}
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) {
set_bit(EV_REP, hi->input->evbit);
switch (usage->hid & HID_USAGE) {
case 0xff01: asus_map_key_clear(BTN_1); break;
case 0xff02: asus_map_key_clear(BTN_2); break;
case 0xff03: asus_map_key_clear(BTN_3); break;
case 0xff04: asus_map_key_clear(BTN_4); break;
case 0xff05: asus_map_key_clear(BTN_5); break;
case 0xff06: asus_map_key_clear(BTN_6); break;
case 0xff07: asus_map_key_clear(BTN_7); break;
case 0xff08: asus_map_key_clear(BTN_8); break;
case 0xff09: asus_map_key_clear(BTN_9); break;
case 0xff0a: asus_map_key_clear(BTN_A); break;
case 0xff0b: asus_map_key_clear(BTN_B); break;
case 0x00f1: asus_map_key_clear(KEY_WLAN); break;
case 0x00f2: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break;
case 0x00f3: asus_map_key_clear(KEY_BRIGHTNESSUP); break;
case 0x00f4: asus_map_key_clear(KEY_DISPLAY_OFF); break;
case 0x00f7: asus_map_key_clear(KEY_CAMERA); break;
case 0x00f8: asus_map_key_clear(KEY_PROG1); break;
default:
return 0;
}
return 1;
}
if (drvdata->quirks & QUIRK_NO_CONSUMER_USAGES &&
(usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
switch (usage->hid & HID_USAGE) {
case 0xe2: /* Mute */
case 0xe9: /* Volume up */
case 0xea: /* Volume down */
return 0;
default:
/* Ignore dummy Consumer usages which make the
* keyboard incorrectly appear as a pointer device.
*/
return -1;
}
}
return 0;
}
static int asus_start_multitouch(struct hid_device *hdev)
{
int ret;
static const unsigned char buf[] = {
FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00
};
unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL);
if (!dmabuf) {
ret = -ENOMEM;
hid_err(hdev, "Asus failed to alloc dma buf: %d\n", ret);
return ret;
}
ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, sizeof(buf),
HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
kfree(dmabuf);
if (ret != sizeof(buf)) {
hid_err(hdev, "Asus failed to start multitouch: %d\n", ret);
return ret;
}
return 0;
}
static int __maybe_unused asus_reset_resume(struct hid_device *hdev)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->tp)
return asus_start_multitouch(hdev);
return 0;
}
static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
struct asus_drvdata *drvdata;
drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
if (drvdata == NULL) {
hid_err(hdev, "Can't alloc Asus descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, drvdata);
drvdata->quirks = id->driver_data;
/*
* T90CHI's keyboard dock returns same ID values as T100CHI's dock.
* Thus, identify T90CHI dock with product name string.
*/
if (strstr(hdev->name, "T90CHI")) {
drvdata->quirks &= ~QUIRK_T100CHI;
drvdata->quirks |= QUIRK_T90CHI;
}
if (drvdata->quirks & QUIRK_IS_MULTITOUCH)
drvdata->tp = &asus_i2c_tp;
if (drvdata->quirks & QUIRK_T100_KEYBOARD) {
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) {
drvdata->quirks = QUIRK_SKIP_INPUT_MAPPING;
/*
* The T100HA uses the same USB-ids as the T100TAF and
* the T200TA uses the same USB-ids as the T100TA, while
* both have different max x/y values as the T100TA[F].
*/
if (dmi_match(DMI_PRODUCT_NAME, "T100HAN"))
drvdata->tp = &asus_t100ha_tp;
else if (dmi_match(DMI_PRODUCT_NAME, "T200TA"))
drvdata->tp = &asus_t200ta_tp;
else
drvdata->tp = &asus_t100ta_tp;
}
}
if (drvdata->quirks & QUIRK_T100CHI) {
/*
* All functionality is on a single HID interface and for
* userspace the touchpad must be a separate input_dev.
*/
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
drvdata->tp = &asus_t100chi_tp;
}
if (drvdata->quirks & QUIRK_NO_INIT_REPORTS)
hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
drvdata->hdev = hdev;
if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
ret = asus_battery_probe(hdev);
if (ret) {
hid_err(hdev,
"Asus hid battery_probe failed: %d\n", ret);
return ret;
}
}
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "Asus hid parse failed: %d\n", ret);
return ret;
}
/* use hid-multitouch for T101HA touchpad */
if (id->driver_data & QUIRK_T101HA_DOCK &&
hdev->collection->usage == HID_GD_MOUSE)
return -ENODEV;
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "Asus hw start failed: %d\n", ret);
return ret;
}
if (!drvdata->input) {
hid_err(hdev, "Asus input not registered\n");
ret = -ENOMEM;
goto err_stop_hw;
}
if (drvdata->tp) {
drvdata->input->name = "Asus TouchPad";
} else {
drvdata->input->name = "Asus Keyboard";
}
if (drvdata->tp) {
ret = asus_start_multitouch(hdev);
if (ret)
goto err_stop_hw;
}
return 0;
err_stop_hw:
hid_hw_stop(hdev);
return ret;
}
static void asus_remove(struct hid_device *hdev)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->kbd_backlight) {
drvdata->kbd_backlight->removed = true;
cancel_work_sync(&drvdata->kbd_backlight->work);
}
hid_hw_stop(hdev);
}
static const __u8 asus_g752_fixed_rdesc[] = {
0x19, 0x00, /* Usage Minimum (0x00) */
0x2A, 0xFF, 0x00, /* Usage Maximum (0xFF) */
};
static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->quirks & QUIRK_FIX_NOTEBOOK_REPORT &&
*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x65) {
hid_info(hdev, "Fixing up Asus notebook report descriptor\n");
rdesc[55] = 0xdd;
}
/* For the T100TA/T200TA keyboard dock */
if (drvdata->quirks & QUIRK_T100_KEYBOARD &&
(*rsize == 76 || *rsize == 101) &&
rdesc[73] == 0x81 && rdesc[74] == 0x01) {
hid_info(hdev, "Fixing up Asus T100 keyb report descriptor\n");
rdesc[74] &= ~HID_MAIN_ITEM_CONSTANT;
}
/* For the T100CHI/T90CHI keyboard dock */
if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) {
int rsize_orig;
int offs;
if (drvdata->quirks & QUIRK_T100CHI) {
rsize_orig = 403;
offs = 388;
} else {
rsize_orig = 306;
offs = 291;
}
/*
* Change Usage (76h) to Usage Minimum (00h), Usage Maximum
* (FFh) and clear the flags in the Input() byte.
* Note the descriptor has a bogus 0 byte at the end so we
* only need 1 extra byte.
*/
if (*rsize == rsize_orig &&
rdesc[offs] == 0x09 && rdesc[offs + 1] == 0x76) {
*rsize = rsize_orig + 1;
rdesc = kmemdup(rdesc, *rsize, GFP_KERNEL);
if (!rdesc)
return NULL;
hid_info(hdev, "Fixing up %s keyb report descriptor\n",
drvdata->quirks & QUIRK_T100CHI ?
"T100CHI" : "T90CHI");
memmove(rdesc + offs + 4, rdesc + offs + 2, 12);
rdesc[offs] = 0x19;
rdesc[offs + 1] = 0x00;
rdesc[offs + 2] = 0x29;
rdesc[offs + 3] = 0xff;
rdesc[offs + 14] = 0x00;
}
}
if (drvdata->quirks & QUIRK_G752_KEYBOARD &&
*rsize == 75 && rdesc[61] == 0x15 && rdesc[62] == 0x00) {
/* report is missing usage mninum and maximum */
__u8 *new_rdesc;
size_t new_size = *rsize + sizeof(asus_g752_fixed_rdesc);
new_rdesc = devm_kzalloc(&hdev->dev, new_size, GFP_KERNEL);
if (new_rdesc == NULL)
return rdesc;
hid_info(hdev, "Fixing up Asus G752 keyb report descriptor\n");
/* copy the valid part */
memcpy(new_rdesc, rdesc, 61);
/* insert missing part */
memcpy(new_rdesc + 61, asus_g752_fixed_rdesc, sizeof(asus_g752_fixed_rdesc));
/* copy remaining data */
memcpy(new_rdesc + 61 + sizeof(asus_g752_fixed_rdesc), rdesc + 61, *rsize - 61);
*rsize = new_size;
rdesc = new_rdesc;
}
return rdesc;
}
static const struct hid_device_id asus_devices[] = {
{ HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD), I2C_KEYBOARD_QUIRKS},
{ HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), I2C_TOUCHPAD_QUIRKS },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1), QUIRK_USE_KBD_BACKLIGHT },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2), QUIRK_USE_KBD_BACKLIGHT },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD3), QUIRK_G752_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_FX503VD_KEYBOARD),
QUIRK_USE_KBD_BACKLIGHT },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_T100TA_KEYBOARD),
QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_T100TAF_KEYBOARD),
QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_T101HA_KEYBOARD), QUIRK_T101HA_DOCK },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) },
{ HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD), QUIRK_T100CHI },
{ }
};
MODULE_DEVICE_TABLE(hid, asus_devices);
static struct hid_driver asus_driver = {
.name = "asus",
.id_table = asus_devices,
.report_fixup = asus_report_fixup,
.probe = asus_probe,
.remove = asus_remove,
.input_mapping = asus_input_mapping,
.input_configured = asus_input_configured,
#ifdef CONFIG_PM
.reset_resume = asus_reset_resume,
#endif
.event = asus_event,
.raw_event = asus_raw_event
};
module_hid_driver(asus_driver);
MODULE_LICENSE("GPL");