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authorJiri Kosina <jkosina@suse.cz>2017-09-05 11:05:28 +0200
committerJiri Kosina <jkosina@suse.cz>2017-09-05 11:05:28 +0200
commitd3c7ad2432115b0b53fb838c14b8ad9ad72f7254 (patch)
tree014d9ae6c1bd9aaae54f2d99e362fc4eec576465 /drivers/hid
parentd487bb6ef121357bd4cd42fe2b08a6857ed26525 (diff)
parent73c75d395857960ea135913da7bb9537248a11e6 (diff)
Merge branch 'for-4.14/asus' into for-linus
- T100 touchpad support from Hans de Goede
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/hid-asus.c218
-rw-r--r--drivers/hid/hid-core.c1
-rw-r--r--drivers/hid/hid-ids.h1
3 files changed, 175 insertions, 45 deletions
diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index a4a3c38bc145..50c294be8324 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -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(drvdat->input);
+ input_sync(drvdat->input);
- input_mt_sync_frame(input);
- input_sync(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);
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 9017dcc14502..d946d561e064 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -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) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index f23f09ea67d1..40d56b42c83b 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -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

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