linux/drivers/hid/hid-asus.c
Hans de Goede 350bd245fc HID: asus: Fix mute and touchpad-toggle keys on Medion Akoya E1239T
The mute key, is broken. All the consumer keys on the keyboard USB
interface work normally, except for mute which only sends press events
and never sends release events.

The touchpad key sends the otherwise unused input report with a report-id
of 5 on the touchpad interface. It too only sends press events. This also
requires extra special handling since the multi-touch touchpad events and
the KEY_F21 events for the touchpad toggle must not be send from the same
input_dev (userspace cannot handle this).

This commit adds special handlig for both, fixing these keys not working.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2020-05-06 11:40:03 +02:00

1165 lines
32 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 MEDION_E1239T_TPAD_INTF 1
#define E1239T_TP_TOGGLE_REPORT_ID 0x05
#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 QUIRK_MEDION_E1239T BIT(11)
#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;
int report_size;
};
struct asus_drvdata {
unsigned long quirks;
struct hid_device *hdev;
struct input_dev *input;
struct input_dev *tp_kbd_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,
.report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */,
};
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,
.report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */,
};
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,
.report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */,
};
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,
.report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */,
};
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,
.report_size = 15 /* 2 byte header + 3 * 4 + 1 byte footer */,
};
static const struct asus_touchpad_info medion_e1239t_tp = {
.max_x = 2640,
.max_y = 1380,
.res_x = 29, /* units/mm */
.res_y = 28, /* units/mm */
.contact_size = 5,
.max_contacts = 5,
.report_size = 32 /* 2 byte header + 5 * 5 + 5 byte footer */,
};
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 != drvdat->tp->report_size)
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_e1239t_event(struct asus_drvdata *drvdat, u8 *data, int size)
{
if (size != 3)
return 0;
/* Handle broken mute key which only sends press events */
if (!drvdat->tp &&
data[0] == 0x02 && data[1] == 0xe2 && data[2] == 0x00) {
input_report_key(drvdat->input, KEY_MUTE, 1);
input_sync(drvdat->input);
input_report_key(drvdat->input, KEY_MUTE, 0);
input_sync(drvdat->input);
return 1;
}
/* Handle custom touchpad toggle key which only sends press events */
if (drvdat->tp_kbd_input &&
data[0] == 0x05 && data[1] == 0x02 && data[2] == 0x28) {
input_report_key(drvdat->tp_kbd_input, KEY_F21, 1);
input_sync(drvdat->tp_kbd_input);
input_report_key(drvdat->tp_kbd_input, KEY_F21, 0);
input_sync(drvdat->tp_kbd_input);
return 1;
}
return 0;
}
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->hid & HID_USAGE) != 0xff && !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);
if (drvdata->quirks & QUIRK_MEDION_E1239T)
return asus_e1239t_event(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;
/* Handle MULTI_INPUT on E1239T mouse/touchpad USB interface */
if (drvdata->tp && (drvdata->quirks & QUIRK_MEDION_E1239T)) {
switch (hi->report->id) {
case E1239T_TP_TOGGLE_REPORT_ID:
input_set_capability(input, EV_KEY, KEY_F21);
input->name = "Asus Touchpad Keys";
drvdata->tp_kbd_input = input;
return 0;
case INPUT_REPORT_ID:
break; /* Touchpad report, handled below */
default:
return 0; /* Ignore other reports */
}
}
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)) &&
(field->application == (HID_UP_GENDESK | 0x0080) ||
field->application == HID_GD_MOUSE ||
usage->hid == (HID_UP_GENDEVCTRLS | 0x0024) ||
usage->hid == (HID_UP_GENDEVCTRLS | 0x0025) ||
usage->hid == (HID_UP_GENDEVCTRLS | 0x0026)))
return -1;
/* ASUS-specific keyboard hotkeys */
if ((usage->hid & HID_USAGE_PAGE) == 0xff310000) {
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;
set_bit(EV_REP, hi->input->evbit);
return 1;
}
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) {
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;
}
set_bit(EV_REP, hi->input->evbit);
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;
}
}
/*
* The mute button is broken and only sends press events, we
* deal with this in our raw_event handler, so do not map it.
*/
if ((drvdata->quirks & QUIRK_MEDION_E1239T) &&
usage->hid == (HID_UP_CONSUMER | 0xe2)) {
input_set_capability(hi->input, EV_KEY, KEY_MUTE);
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) &&
hid_is_using_ll_driver(hdev, &usb_hid_driver)) {
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_MEDION_E1239T) &&
hid_is_using_ll_driver(hdev, &usb_hid_driver)) {
struct usb_host_interface *alt =
to_usb_interface(hdev->dev.parent)->altsetting;
if (alt->desc.bInterfaceNumber == MEDION_E1239T_TPAD_INTF) {
/* For separate input-devs for tp and tp toggle key */
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
drvdata->quirks |= QUIRK_SKIP_INPUT_MAPPING;
drvdata->tp = &medion_e1239t_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 },
{ HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE_MEDION_E1239T),
QUIRK_MEDION_E1239T },
{ }
};
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");