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Commit d3c7ad24 authored by Jiri Kosina's avatar Jiri Kosina
Browse files

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

- T100 touchpad support from Hans de Goede
parents d487bb6e 73c75d39

drivers/hid/hid-asus.c

+173 −45
Original line number Diff line number Diff line
@@ -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);

drivers/hid/hid-core.c

+1 −0
Original line number Diff line number Diff line
@@ -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) },

drivers/hid/hid-ids.h

+1 −0
Original line number Diff line number Diff line
@@ -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