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Merge branch 'for-4.14/asus' into for-linus 

- T100 touchpad support from Hans de Goede
hifive-unleashed-5.1
Jiri Kosina 2017-09-05 11:05:28 +02:00
parent d487bb6ef1 73c75d3958
commit d3c7ad2432
3 changed files with 175 additions and 45 deletions
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218
drivers/hid/hid-asus.c
View File

@ -29,6 +29,7 @@
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/input/mt.h>
#include <linux/usb.h> /* For to_usb_interface for T100 touchpad intf check */
#include "hid-ids.h"
@ -38,24 +39,19 @@ 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 INPUT_REPORT_SIZE 28
#define FEATURE_KBD_REPORT_SIZE 16
#define SUPPORT_KBD_BACKLIGHT BIT(0)
#define MAX_CONTACTS 5
#define MAX_X 2794
#define MAX_Y 1758
#define MAX_TOUCH_MAJOR 8
#define MAX_PRESSURE 128
#define CONTACT_DATA_SIZE 5
#define BTN_LEFT_MASK 0x01
#define CONTACT_TOOL_TYPE_MASK 0x80
#define CONTACT_X_MSB_MASK 0xf0
@ -70,6 +66,7 @@ MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
#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 I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \
QUIRK_NO_INIT_REPORTS | \
@ -88,19 +85,62 @@ struct asus_kbd_leds {
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 input_dev *input;
struct asus_kbd_leds *kbd_backlight;
const struct asus_touchpad_info *tp;
bool enable_backlight;
};
static void asus_report_contact_down(struct input_dev *input,
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_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)
{
int touch_major, pressure;
int x = (data[0] & CONTACT_X_MSB_MASK) << 4 | data[1];
int y = MAX_Y - ((data[0] & CONTACT_Y_MSB_MASK) << 8 | data[2]);
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;
@ -110,19 +150,20 @@ static void asus_report_contact_down(struct input_dev *input,
pressure = data[4] & CONTACT_PRESSURE_MASK;
}
input_report_abs(input, ABS_MT_POSITION_X, x);
input_report_abs(input, ABS_MT_POSITION_Y, y);
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 input_dev *input)
static void asus_report_tool_width(struct asus_drvdata *drvdat)
{
struct input_mt *mt = input->mt;
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;
@ -141,35 +182,42 @@ static void asus_report_tool_width(struct input_dev *input)
}
if (oldest) {
input_report_abs(input, ABS_TOOL_WIDTH,
input_report_abs(drvdat->input, ABS_TOOL_WIDTH,
input_mt_get_value(oldest, ABS_MT_TOUCH_MAJOR));
}
}
static void asus_report_input(struct input_dev *input, u8 *data)
static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size)
{
int i;
int i, toolType = MT_TOOL_FINGER;
u8 *contactData = data + 2;
for (i = 0; i < MAX_CONTACTS; i++) {
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));
int toolType = contactData[3] & CONTACT_TOOL_TYPE_MASK ?
if (drvdat->tp->contact_size >= 5)
toolType = contactData[3] & CONTACT_TOOL_TYPE_MASK ?
MT_TOOL_PALM : MT_TOOL_FINGER;
input_mt_slot(input, i);
input_mt_report_slot_state(input, toolType, down);
input_mt_slot(drvdat->input, i);
input_mt_report_slot_state(drvdat->input, toolType, down);
if (down) {
asus_report_contact_down(input, toolType, contactData);
contactData += CONTACT_DATA_SIZE;
asus_report_contact_down(drvdat, toolType, contactData);
contactData += drvdat->tp->contact_size;
}
}
input_report_key(input, BTN_LEFT, data[1] & BTN_LEFT_MASK);
asus_report_tool_width(input);
input_report_key(drvdat->input, BTN_LEFT, data[1] & BTN_LEFT_MASK);
asus_report_tool_width(drvdat);
input_mt_sync_frame(input);
input_sync(input);
input_mt_sync_frame(drvdat->input);
input_sync(drvdat->input);
return 1;
}
static int asus_raw_event(struct hid_device *hdev,
@ -177,12 +225,8 @@ static int asus_raw_event(struct hid_device *hdev,
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->quirks & QUIRK_IS_MULTITOUCH &&
data[0] == INPUT_REPORT_ID &&
size == INPUT_REPORT_SIZE) {
asus_report_input(drvdata->input, data);
return 1;
}
if (drvdata->tp && data[0] == INPUT_REPORT_ID)
return asus_report_input(drvdata, data, size);
return 0;
}
@ -334,19 +378,35 @@ 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);
if (drvdata->quirks & QUIRK_IS_MULTITOUCH) {
/* 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, MAX_X, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y, 0, MAX_Y, 0, 0);
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);
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, MAX_CONTACTS, INPUT_MT_POINTER);
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);
@ -378,6 +438,26 @@ static int asus_input_mapping(struct hid_device *hdev,
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) {
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);
@ -496,7 +576,7 @@ static int __maybe_unused asus_reset_resume(struct hid_device *hdev)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->quirks & QUIRK_IS_MULTITOUCH)
if (drvdata->tp)
return asus_start_multitouch(hdev);
return 0;
@ -517,6 +597,28 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
drvdata->quirks = id->driver_data;
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;
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 |
HID_QUIRK_NO_EMPTY_INPUT;
drvdata->tp = &asus_t100chi_tp;
}
if (drvdata->quirks & QUIRK_NO_INIT_REPORTS)
hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
@ -538,13 +640,13 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
goto err_stop_hw;
}
if (drvdata->quirks & QUIRK_IS_MULTITOUCH) {
if (drvdata->tp) {
drvdata->input->name = "Asus TouchPad";
} else {
drvdata->input->name = "Asus Keyboard";
}
if (drvdata->quirks & QUIRK_IS_MULTITOUCH) {
if (drvdata->tp) {
ret = asus_start_multitouch(hdev);
if (ret)
goto err_stop_hw;
@ -578,11 +680,34 @@ static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc,
hid_info(hdev, "Fixing up Asus notebook report descriptor\n");
rdesc[55] = 0xdd;
}
/* For the T100TA keyboard dock */
if (drvdata->quirks & QUIRK_T100_KEYBOARD &&
*rsize == 76 && 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 keyboard dock */
if (drvdata->quirks & QUIRK_T100CHI &&
*rsize == 403 && rdesc[388] == 0x09 && rdesc[389] == 0x76) {
/*
* 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.
*/
*rsize = 404;
rdesc = kmemdup(rdesc, *rsize, GFP_KERNEL);
if (!rdesc)
return NULL;
hid_info(hdev, "Fixing up T100CHI keyb report descriptor\n");
memmove(rdesc + 392, rdesc + 390, 12);
rdesc[388] = 0x19;
rdesc[389] = 0x00;
rdesc[390] = 0x29;
rdesc[391] = 0xff;
rdesc[402] = 0x00;
}
return rdesc;
}
@ -602,6 +727,9 @@ static const struct hid_device_id asus_devices[] = {
{ 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);

1
drivers/hid/hid-core.c
View File

@ -1982,6 +1982,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T100_KEYBOARD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD) },
#endif
#if IS_ENABLED(CONFIG_HID_AUREAL)
{ HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },

1
drivers/hid/hid-ids.h
View File

@ -176,6 +176,7 @@
#define USB_DEVICE_ID_ASUSTEK_LCM 0x1726
#define USB_DEVICE_ID_ASUSTEK_LCM2 0x175b
#define USB_DEVICE_ID_ASUSTEK_T100_KEYBOARD 0x17e0
#define USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD 0x8502
#define USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD 0x8585
#define USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD 0x0101
#define USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1 0x1854