From 8afede123bc15417656890ac3aafac3f2d6539a4 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 19 Jan 2018 16:35:04 +0200
Subject: HID: i2c-hid: Use ACPI_COMPANION() directly

Instead of doing additional checks and functional calls,
just get ACPI companion device directly.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/i2c-hid/i2c-hid.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index 7230243b94d3..0d3ca542e987 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -891,10 +891,10 @@ static int i2c_hid_acpi_pdata(struct i2c_client *client,
 
 static void i2c_hid_acpi_fix_up_power(struct device *dev)
 {
-	acpi_handle handle = ACPI_HANDLE(dev);
 	struct acpi_device *adev;
 
-	if (handle && acpi_bus_get_device(handle, &adev) == 0)
+	adev = ACPI_COMPANION(dev);
+	if (adev)
 		acpi_device_fix_up_power(adev);
 }
 
-- 
cgit v1.2.3


From 9a6a4193d65b853020ef0e66cecdf9e64a863883 Mon Sep 17 00:00:00 2001
From: Alexandrov Stansilav <neko@nya.ai>
Date: Sun, 14 Jan 2018 02:33:49 +0300
Subject: HID: Add driver for USB ELAN Touchpad

This is driver for usb touchpad found on HP Pavilion x2 10-p0xx laptop. On this
device keyboard and touchpad connected as a single usb device with two
interfaces: keyboard, which exposes ordinary keys and second interface is
touchpad which also contains FlightMode button and audio mute led (which
physically placed on keyboard for some reason).

Initially, this touchpad works in mouse emulation mode, this driver will switch
it to touchpad mode, which can track 5 fingers and can report coordinates for
two of them.

Signed-off-by: Alexandrov Stansilav <neko@nya.ai>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/Kconfig      |   8 +
 drivers/hid/Makefile     |   1 +
 drivers/hid/hid-elan.c   | 421 +++++++++++++++++++++++++++++++++++++++++++++++
 drivers/hid/hid-ids.h    |   1 +
 drivers/hid/hid-quirks.c |   3 +
 5 files changed, 434 insertions(+)
 create mode 100644 drivers/hid/hid-elan.c

(limited to 'drivers')

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 19c499f5623d..276c50e3bf45 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -274,6 +274,14 @@ config HID_EMS_FF
 	Currently the following devices are known to be supported:
 	 - Trio Linker Plus II
 
+config HID_ELAN
+	tristate "ELAN USB Touchpad Support"
+	depends on LEDS_CLASS && USB_HID
+	---help---
+	Say Y to enable support for the USB ELAN touchpad
+	Currently the following devices are known to be supported:
+	 - HP Pavilion X2 10-p0XX.
+
 config HID_ELECOM
 	tristate "ELECOM HID devices"
 	depends on HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index eb13b9e92d85..713601c7bfa6 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -39,6 +39,7 @@ obj-$(CONFIG_HID_CP2112)	+= hid-cp2112.o
 obj-$(CONFIG_HID_CYPRESS)	+= hid-cypress.o
 obj-$(CONFIG_HID_DRAGONRISE)	+= hid-dr.o
 obj-$(CONFIG_HID_EMS_FF)	+= hid-emsff.o
+obj-$(CONFIG_HID_ELAN)		+= hid-elan.o
 obj-$(CONFIG_HID_ELECOM)	+= hid-elecom.o
 obj-$(CONFIG_HID_ELO)		+= hid-elo.o
 obj-$(CONFIG_HID_EZKEY)		+= hid-ezkey.o
diff --git a/drivers/hid/hid-elan.c b/drivers/hid/hid-elan.c
new file mode 100644
index 000000000000..803a725785cf
--- /dev/null
+++ b/drivers/hid/hid-elan.c
@@ -0,0 +1,421 @@
+/*
+ * HID Driver for ELAN Touchpad
+ *
+ * Currently only supports touchpad found on HP Pavilion X2 10
+ *
+ * Copyright (c) 2016 Alexandrov Stanislav <neko@nya.ai>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/hid.h>
+#include <linux/input/mt.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+
+#include "hid-ids.h"
+
+#define ELAN_SINGLE_FINGER	0x81
+#define ELAN_MT_FIRST_FINGER	0x82
+#define ELAN_MT_SECOND_FINGER	0x83
+#define ELAN_INPUT_REPORT_SIZE	8
+
+#define ELAN_MUTE_LED_REPORT	0xBC
+#define ELAN_LED_REPORT_SIZE	8
+
+struct elan_touchpad_settings {
+	u8 max_fingers;
+	u16 max_x;
+	u16 max_y;
+	u8 max_area_x;
+	u8 max_area_y;
+	u8 max_w;
+	int usb_bInterfaceNumber;
+};
+
+struct elan_drvdata {
+	struct input_dev *input;
+	u8 prev_report[ELAN_INPUT_REPORT_SIZE];
+	struct led_classdev mute_led;
+	u8 mute_led_state;
+	struct elan_touchpad_settings *settings;
+};
+
+static int is_not_elan_touchpad(struct hid_device *hdev)
+{
+	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+	struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
+
+	return (intf->altsetting->desc.bInterfaceNumber != drvdata->settings->usb_bInterfaceNumber);
+}
+
+static int elan_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+			      struct hid_field *field, struct hid_usage *usage,
+			      unsigned long **bit, int *max)
+{
+	if (is_not_elan_touchpad(hdev))
+		return 0;
+
+	if (field->report->id == ELAN_SINGLE_FINGER ||
+	    field->report->id == ELAN_MT_FIRST_FINGER ||
+	    field->report->id == ELAN_MT_SECOND_FINGER)
+		return -1;
+
+	return 0;
+}
+
+static int elan_input_configured(struct hid_device *hdev, struct hid_input *hi)
+{
+	int ret;
+	struct input_dev *input;
+	struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
+
+	if (is_not_elan_touchpad(hdev))
+		return 0;
+
+	input = devm_input_allocate_device(&hdev->dev);
+	if (!input)
+		return -ENOMEM;
+
+	input->name = "Elan Touchpad";
+	input->phys = hdev->phys;
+	input->uniq = hdev->uniq;
+	input->id.bustype = hdev->bus;
+	input->id.vendor  = hdev->vendor;
+	input->id.product = hdev->product;
+	input->id.version = hdev->version;
+	input->dev.parent = &hdev->dev;
+
+	input_set_abs_params(input, ABS_MT_POSITION_X, 0,
+			     drvdata->settings->max_x, 0, 0);
+	input_set_abs_params(input, ABS_MT_POSITION_Y, 0,
+			     drvdata->settings->max_y, 0, 0);
+	input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0,
+			     drvdata->settings->max_fingers, 0, 0);
+	input_set_abs_params(input, ABS_TOOL_WIDTH, 0,
+			     drvdata->settings->max_w, 0, 0);
+
+	__set_bit(BTN_LEFT, input->keybit);
+	__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
+
+	ret = input_mt_init_slots(input, drvdata->settings->max_fingers,
+				  INPUT_MT_POINTER);
+	if (ret) {
+		hid_err(hdev, "Failed to init elan MT slots: %d\n", ret);
+		return ret;
+	}
+
+	ret = input_register_device(input);
+	if (ret) {
+		hid_err(hdev, "Failed to register elan input device: %d\n",
+			ret);
+		input_free_device(input);
+		return ret;
+	}
+
+	drvdata->input = input;
+
+	return 0;
+}
+
+static void elan_report_mt_slot(struct elan_drvdata *drvdata, u8 *data,
+				unsigned int slot_num)
+{
+	struct input_dev *input = drvdata->input;
+	int x, y, w;
+
+	bool active = !!data;
+
+	input_mt_slot(input, slot_num);
+	input_mt_report_slot_state(input, MT_TOOL_FINGER, active);
+	if (active) {
+		x = ((data[0] & 0xF0) << 4) | data[1];
+		y = drvdata->settings->max_y -
+		    (((data[0] & 0x07) << 8) | data[2]);
+		w = data[4];
+
+		input_report_abs(input, ABS_MT_POSITION_X, x);
+		input_report_abs(input, ABS_MT_POSITION_Y, y);
+		input_report_abs(input, ABS_TOOL_WIDTH, w);
+	}
+}
+
+static void elan_report_input(struct elan_drvdata *drvdata, u8 *data)
+{
+	int i;
+	struct input_dev *input = drvdata->input;
+
+	/*
+	 * There is 3 types of reports: for single touch,
+	 * for multitouch - first finger and for multitouch - second finger
+	 *
+	 * packet structure for ELAN_SINGLE_FINGER and ELAN_MT_FIRST_FINGER:
+	 *
+	 * byte 1: 1   0   0   0   0   0   0   1  // 0x81 or 0x82
+	 * byte 2: 0   0   0   0   0   0   0   0  // looks like unused
+	 * byte 3: f5  f4  f3  f2  f1  0   0   L
+	 * byte 4: x12 x11 x10 x9  0?  y11 y10 y9
+	 * byte 5: x8  x7  x6  x5  x4  x3  x2  x1
+	 * byte 6: y8  y7  y6  y5  y4  y3  y2  y1
+	 * byte 7: sy4 sy3 sy2 sy1 sx4 sx3 sx2 sx1
+	 * byte 8: w8  w7  w6  w5  w4  w3  w2  w1
+	 *
+	 * packet structure for ELAN_MT_SECOND_FINGER:
+	 *
+	 * byte 1: 1   0   0   0   0   0   1   1  // 0x83
+	 * byte 2: x12 x11 x10 x9  0   y11 y10 y9
+	 * byte 3: x8  x7  x6  x5  x4  x3  x2  x1
+	 * byte 4: y8  y7  y6  y5  y4  y3  y2  y1
+	 * byte 5: sy4 sy3 sy2 sy1 sx4 sx3 sx2 sx1
+	 * byte 6: w8  w7  w6  w5  w4  w3  w2  w1
+	 * byte 7: 0   0   0   0   0   0   0   0
+	 * byte 8: 0   0   0   0   0   0   0   0
+	 *
+	 * f5-f1: finger touch bits
+	 * L: clickpad button
+	 * sy / sx: not sure yet, but this looks like rectangular
+	 * area for finger
+	 * w: looks like finger width
+	 */
+
+	if (data[0] == ELAN_SINGLE_FINGER) {
+		for (i = 0; i < drvdata->settings->max_fingers; i++) {
+			if (data[2] & BIT(i + 3))
+				elan_report_mt_slot(drvdata, data + 3, i);
+			else
+				elan_report_mt_slot(drvdata, NULL, i);
+		}
+		input_report_key(input, BTN_LEFT, data[2] & 0x01);
+	}
+	/*
+	 * When touched with two fingers Elan touchpad will emit two HID reports
+	 * first is ELAN_MT_FIRST_FINGER and second is ELAN_MT_SECOND_FINGER
+	 * we will save ELAN_MT_FIRST_FINGER report and wait for
+	 * ELAN_MT_SECOND_FINGER to finish multitouch
+	 */
+	if (data[0] == ELAN_MT_FIRST_FINGER) {
+		memcpy(drvdata->prev_report, data,
+		       sizeof(drvdata->prev_report));
+		return;
+	}
+
+	if (data[0] == ELAN_MT_SECOND_FINGER) {
+		int first = 0;
+		u8 *prev_report = drvdata->prev_report;
+
+		if (prev_report[0] != ELAN_MT_FIRST_FINGER)
+			return;
+
+		for (i = 0; i < drvdata->settings->max_fingers; i++) {
+			if (prev_report[2] & BIT(i + 3)) {
+				if (!first) {
+					first = 1;
+					elan_report_mt_slot(drvdata, prev_report + 3, i);
+				} else {
+					elan_report_mt_slot(drvdata, data + 1, i);
+				}
+			} else {
+				elan_report_mt_slot(drvdata, NULL, i);
+			}
+		}
+		input_report_key(input, BTN_LEFT, prev_report[2] & 0x01);
+	}
+
+	input_mt_sync_frame(input);
+	input_sync(input);
+}
+
+static int elan_raw_event(struct hid_device *hdev,
+			  struct hid_report *report, u8 *data, int size)
+{
+	struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
+
+	if (is_not_elan_touchpad(hdev))
+		return 0;
+
+	if (data[0] == ELAN_SINGLE_FINGER ||
+	    data[0] == ELAN_MT_FIRST_FINGER ||
+	    data[0] == ELAN_MT_SECOND_FINGER) {
+		if (size == ELAN_INPUT_REPORT_SIZE) {
+			elan_report_input(drvdata, data);
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static int elan_start_multitouch(struct hid_device *hdev)
+{
+	int ret;
+
+	/*
+	 * This byte sequence will enable multitouch mode and disable
+	 * mouse emulation
+	 */
+	const unsigned char buf[] = { 0x0D, 0x00, 0x03, 0x21, 0x00 };
+	unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL);
+
+	if (!dmabuf)
+		return -ENOMEM;
+
+	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, "Failed to start multitouch: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static enum led_brightness elan_mute_led_get_brigtness(struct led_classdev *led_cdev)
+{
+	struct device *dev = led_cdev->dev->parent;
+	struct hid_device *hdev = to_hid_device(dev);
+	struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
+
+	return drvdata->mute_led_state;
+}
+
+static int elan_mute_led_set_brigtness(struct led_classdev *led_cdev,
+				       enum led_brightness value)
+{
+	int ret;
+	u8 led_state;
+	struct device *dev = led_cdev->dev->parent;
+	struct hid_device *hdev = to_hid_device(dev);
+	struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
+
+	unsigned char *dmabuf = kzalloc(ELAN_LED_REPORT_SIZE, GFP_KERNEL);
+
+	if (!dmabuf)
+		return -ENOMEM;
+
+	led_state = !!value;
+
+	dmabuf[0] = ELAN_MUTE_LED_REPORT;
+	dmabuf[1] = 0x02;
+	dmabuf[2] = led_state;
+
+	ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, ELAN_LED_REPORT_SIZE,
+				 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
+
+	kfree(dmabuf);
+
+	if (ret != ELAN_LED_REPORT_SIZE) {
+		hid_err(hdev, "Failed to set mute led brightness: %d\n", ret);
+		return ret;
+	}
+
+	drvdata->mute_led_state = led_state;
+	return 0;
+}
+
+static int elan_init_mute_led(struct hid_device *hdev)
+{
+	struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
+	struct led_classdev *mute_led = &drvdata->mute_led;
+
+	mute_led->name = "elan:red:mute";
+	mute_led->brightness_get = elan_mute_led_get_brigtness;
+	mute_led->brightness_set_blocking = elan_mute_led_set_brigtness;
+	mute_led->max_brightness = LED_ON;
+	mute_led->dev = &hdev->dev;
+
+	return devm_led_classdev_register(&hdev->dev, mute_led);
+}
+
+static int elan_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+	int ret;
+	struct elan_drvdata *drvdata;
+
+	drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
+
+	if (!drvdata)
+		return -ENOMEM;
+
+	drvdata->settings = (struct elan_touchpad_settings *)id->driver_data;
+	hid_set_drvdata(hdev, drvdata);
+
+	ret = hid_parse(hdev);
+	if (ret) {
+		hid_err(hdev, "Hid Parse failed\n");
+		return ret;
+	}
+
+	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+	if (ret) {
+		hid_err(hdev, "Hid hw start failed\n");
+		return ret;
+	}
+
+	if (is_not_elan_touchpad(hdev))
+		return 0;
+
+	if (!drvdata->input) {
+		hid_err(hdev, "Input device is not registred\n");
+		ret = -ENAVAIL;
+		goto err;
+	}
+
+	ret = elan_start_multitouch(hdev);
+	if (ret)
+		goto err;
+
+	ret = elan_init_mute_led(hdev);
+	if (ret)
+		goto err;
+
+	return 0;
+err:
+	hid_hw_stop(hdev);
+	return ret;
+}
+
+static void elan_remove(struct hid_device *hdev)
+{
+	hid_hw_stop(hdev);
+}
+
+static const struct elan_touchpad_settings hp_x2_10_touchpad_data = {
+	.max_fingers = 5,
+	.max_x = 2930,
+	.max_y = 1250,
+	.max_area_x = 15,
+	.max_area_y = 15,
+	.max_w = 255,
+	.usb_bInterfaceNumber = 1,
+};
+
+static const struct hid_device_id elan_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_HP_X2_10_COVER),
+		(kernel_ulong_t)&hp_x2_10_touchpad_data},
+	{ }
+};
+
+MODULE_DEVICE_TABLE(hid, elan_devices);
+
+static struct hid_driver elan_driver = {
+	.name = "elan",
+	.id_table = elan_devices,
+	.input_mapping = elan_input_mapping,
+	.input_configured = elan_input_configured,
+	.raw_event = elan_raw_event,
+	.probe = elan_probe,
+	.remove = elan_remove,
+};
+
+module_hid_driver(elan_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alexandrov Stanislav");
+MODULE_DESCRIPTION("Driver for HID ELAN Touchpads");
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 43ddcdfbd0da..450245efdcc2 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -368,6 +368,7 @@
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001	0xa001
 
 #define USB_VENDOR_ID_ELAN		0x04f3
+#define USB_DEVICE_ID_HP_X2_10_COVER	0x0755
 
 #define USB_VENDOR_ID_ELECOM		0x056e
 #define USB_DEVICE_ID_ELECOM_BM084	0x0061
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index 5f6035a5ce36..3d17ffb581ad 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -333,6 +333,9 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
 #endif
+#if IS_ENABLED(CONFIG_HID_ELAN)
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_HP_X2_10_COVER) },
+#endif
 #if IS_ENABLED(CONFIG_HID_ELECOM)
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_EX_G_WIRED) },
-- 
cgit v1.2.3


From bbca80b279745a8bd73a7d23d5b3d1e9d5705600 Mon Sep 17 00:00:00 2001
From: Guus Sliepen <guus@sliepen.org>
Date: Sat, 10 Feb 2018 18:12:12 +0100
Subject: HID: corsair: Add support for the GLAIVE RGB gaming mouse

This mouse sold by Corsair as the GLAIVE RGB gaming mouse has the same
problem with its HID reports as the Scimitar PRO RGB, so reuse the
same fix for the GLAIVE RGB.

Signed-off-by: Guus Sliepen <guus@sliepen.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-corsair.c | 16 ++++++++++------
 drivers/hid/hid-ids.h     |  1 +
 drivers/hid/hid-quirks.c  |  2 ++
 3 files changed, 13 insertions(+), 6 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/hid-corsair.c b/drivers/hid/hid-corsair.c
index 9ba5d98a1180..6c9c8fe1bcb2 100644
--- a/drivers/hid/hid-corsair.c
+++ b/drivers/hid/hid-corsair.c
@@ -673,7 +673,7 @@ static int corsair_input_mapping(struct hid_device *dev,
 }
 
 /*
- * The report descriptor of Corsair Scimitar RGB Pro gaming mouse is
+ * The report descriptor of some of the Corsair gaming mice is
  * non parseable as they define two consecutive Logical Minimum for
  * the Usage Page (Consumer) in rdescs bytes 75 and 77 being 77 0x16
  * that should be obviousy 0x26 for Logical Magimum of 16 bits. This
@@ -681,7 +681,8 @@ static int corsair_input_mapping(struct hid_device *dev,
  * Minimum being larger than Logical Maximum.
  *
  * This driver fixes the report descriptor for:
- * - USB ID b1c:1b3e, sold as Scimitar RGB Pro Gaming mouse
+ * - USB ID 1b1c:1b34, sold as GLAIVE RGB Gaming mouse
+ * - USB ID 1b1c:1b3e, sold as Scimitar RGB Pro Gaming mouse
  */
 
 static __u8 *corsair_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
@@ -691,13 +692,14 @@ static __u8 *corsair_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 
 	if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
 		/*
-		 * Corsair Scimitar RGB Pro report descriptor is broken and
-		 * defines two different Logical Minimum for the Consumer
-		 * Application. The byte 77 should be a 0x26 defining a 16
-		 * bits integer for the Logical Maximum but it is a 0x16
+		 * Corsair GLAIVE RGB and Scimitar RGB Pro report descriptor is
+		 * broken and defines two different Logical Minimum for the
+		 * Consumer Application. The byte 77 should be a 0x26 defining
+		 * a 16 bits integer for the Logical Maximum but it is a 0x16
 		 * instead (Logical Minimum)
 		 */
 		switch (hdev->product) {
+		case USB_DEVICE_ID_CORSAIR_GLAIVE_RGB:
 		case USB_DEVICE_ID_CORSAIR_SCIMITAR_PRO_RGB:
 			if (*rsize >= 172 && rdesc[75] == 0x15 && rdesc[77] == 0x16
 			&& rdesc[78] == 0xff && rdesc[79] == 0x0f) {
@@ -715,6 +717,8 @@ static const struct hid_device_id corsair_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K90),
 		.driver_data = CORSAIR_USE_K90_MACRO |
 			       CORSAIR_USE_K90_BACKLIGHT },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR,
+            USB_DEVICE_ID_CORSAIR_GLAIVE_RGB) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR,
             USB_DEVICE_ID_CORSAIR_SCIMITAR_PRO_RGB) },
 	{}
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 43ddcdfbd0da..a099e519482d 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -291,6 +291,7 @@
 #define USB_DEVICE_ID_CORSAIR_K70RGB    0x1b13
 #define USB_DEVICE_ID_CORSAIR_STRAFE    0x1b15
 #define USB_DEVICE_ID_CORSAIR_K65RGB    0x1b17
+#define USB_DEVICE_ID_CORSAIR_GLAIVE_RGB        0x1b34
 #define USB_DEVICE_ID_CORSAIR_K70RGB_RAPIDFIRE  0x1b38
 #define USB_DEVICE_ID_CORSAIR_K65RGB_RAPIDFIRE  0x1b39
 #define USB_DEVICE_ID_CORSAIR_SCIMITAR_PRO_RGB  0x1b3e
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index 5f6035a5ce36..7203eba3c029 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -62,6 +62,7 @@ static const struct hid_device_id hid_quirks[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K70R), HID_QUIRK_NO_INIT_REPORTS },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K95RGB), HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_M65RGB), HID_QUIRK_NO_INIT_REPORTS },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_GLAIVE_RGB), HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_SCIMITAR_PRO_RGB), HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_STRAFE), HID_QUIRK_NO_INIT_REPORTS | HID_QUIRK_ALWAYS_POLL },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_CREATIVE_SB_OMNI_SURROUND_51), HID_QUIRK_NOGET },
@@ -317,6 +318,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 #endif
 #if IS_ENABLED(CONFIG_HID_CORSAIR)
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K90) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_GLAIVE_RGB) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_SCIMITAR_PRO_RGB) },
 #endif
 #if IS_ENABLED(CONFIG_HID_CP2112)
-- 
cgit v1.2.3


From ac75a041048b8c1f7418e27621ca5efda8571043 Mon Sep 17 00:00:00 2001
From: Aaron Ma <aaron.ma@canonical.com>
Date: Mon, 8 Jan 2018 10:41:40 +0800
Subject: HID: i2c-hid: fix size check and type usage

When convert char array with signed int, if the inbuf[x] is negative then
upper bits will be set to 1. Fix this by using u8 instead of char.

ret_size has to be at least 3, hid_input_report use it after minus 2 bytes.

Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/i2c-hid/i2c-hid.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index 7230243b94d3..e6f413a2b1e9 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -144,10 +144,10 @@ struct i2c_hid {
 						   * register of the HID
 						   * descriptor. */
 	unsigned int		bufsize;	/* i2c buffer size */
-	char			*inbuf;		/* Input buffer */
-	char			*rawbuf;	/* Raw Input buffer */
-	char			*cmdbuf;	/* Command buffer */
-	char			*argsbuf;	/* Command arguments buffer */
+	u8			*inbuf;		/* Input buffer */
+	u8			*rawbuf;	/* Raw Input buffer */
+	u8			*cmdbuf;	/* Command buffer */
+	u8			*argsbuf;	/* Command arguments buffer */
 
 	unsigned long		flags;		/* device flags */
 	unsigned long		quirks;		/* Various quirks */
@@ -455,7 +455,8 @@ out_unlock:
 
 static void i2c_hid_get_input(struct i2c_hid *ihid)
 {
-	int ret, ret_size;
+	int ret;
+	u32 ret_size;
 	int size = le16_to_cpu(ihid->hdesc.wMaxInputLength);
 
 	if (size > ihid->bufsize)
@@ -480,7 +481,7 @@ static void i2c_hid_get_input(struct i2c_hid *ihid)
 		return;
 	}
 
-	if (ret_size > size) {
+	if ((ret_size > size) || (ret_size <= 2)) {
 		dev_err(&ihid->client->dev, "%s: incomplete report (%d/%d)\n",
 			__func__, size, ret_size);
 		return;
-- 
cgit v1.2.3


From 6de0b13cc0b4ba10e98a9263d7a83b940720b77a Mon Sep 17 00:00:00 2001
From: Aaron Ma <aaron.ma@canonical.com>
Date: Mon, 8 Jan 2018 10:41:41 +0800
Subject: HID: core: Fix size as type u32

When size is negative, calling memset will make segment fault.
Declare the size as type u32 to keep memset safe.

size in struct hid_report is unsigned, fix return type of
hid_report_len to u32.

Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-core.c | 10 +++++-----
 include/linux/hid.h    |  6 +++---
 2 files changed, 8 insertions(+), 8 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index c2560aae5542..4fc08c38bc0e 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1365,7 +1365,7 @@ u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
 	 * of implement() working on 8 byte chunks
 	 */
 
-	int len = hid_report_len(report) + 7;
+	u32 len = hid_report_len(report) + 7;
 
 	return kmalloc(len, flags);
 }
@@ -1430,7 +1430,7 @@ void __hid_request(struct hid_device *hid, struct hid_report *report,
 {
 	char *buf;
 	int ret;
-	int len;
+	u32 len;
 
 	buf = hid_alloc_report_buf(report, GFP_KERNEL);
 	if (!buf)
@@ -1456,14 +1456,14 @@ out:
 }
 EXPORT_SYMBOL_GPL(__hid_request);
 
-int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
+int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, u32 size,
 		int interrupt)
 {
 	struct hid_report_enum *report_enum = hid->report_enum + type;
 	struct hid_report *report;
 	struct hid_driver *hdrv;
 	unsigned int a;
-	int rsize, csize = size;
+	u32 rsize, csize = size;
 	u8 *cdata = data;
 	int ret = 0;
 
@@ -1521,7 +1521,7 @@ EXPORT_SYMBOL_GPL(hid_report_raw_event);
  *
  * This is data entry for lower layers.
  */
-int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
+int hid_input_report(struct hid_device *hid, int type, u8 *data, u32 size, int interrupt)
 {
 	struct hid_report_enum *report_enum;
 	struct hid_driver *hdrv;
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 091a81cf330f..0efe80b59156 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -851,7 +851,7 @@ extern int hidinput_connect(struct hid_device *hid, unsigned int force);
 extern void hidinput_disconnect(struct hid_device *);
 
 int hid_set_field(struct hid_field *, unsigned, __s32);
-int hid_input_report(struct hid_device *, int type, u8 *, int, int);
+int hid_input_report(struct hid_device *, int type, u8 *, u32, int);
 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field);
 struct hid_field *hidinput_get_led_field(struct hid_device *hid);
 unsigned int hidinput_count_leds(struct hid_device *hid);
@@ -1102,13 +1102,13 @@ static inline void hid_hw_wait(struct hid_device *hdev)
  *
  * @report: the report we want to know the length
  */
-static inline int hid_report_len(struct hid_report *report)
+static inline u32 hid_report_len(struct hid_report *report)
 {
 	/* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */
 	return ((report->size - 1) >> 3) + 1 + (report->id > 0);
 }
 
-int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
+int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, u32 size,
 		int interrupt);
 
 /* HID quirks API */
-- 
cgit v1.2.3


From 3064a03b94e60388f0955fcc29f3e8a978d28f75 Mon Sep 17 00:00:00 2001
From: Aaron Ma <aaron.ma@canonical.com>
Date: Sat, 3 Feb 2018 23:57:15 +0800
Subject: HID: Fix hid_report_len usage

Follow the change of return type u32 of hid_report_len,
fix all the types of variables those get the return value of
hid_report_len to u32, and all other code already uses u32.

Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-input.c      | 3 ++-
 drivers/hid/hid-multitouch.c | 5 +++--
 drivers/hid/hid-rmi.c        | 4 ++--
 drivers/hid/wacom_sys.c      | 4 ++--
 4 files changed, 9 insertions(+), 7 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 04d01b57d94c..d86398755b0d 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1368,7 +1368,8 @@ static void hidinput_led_worker(struct work_struct *work)
 					      led_work);
 	struct hid_field *field;
 	struct hid_report *report;
-	int len, ret;
+	int ret;
+	u32 len;
 	__u8 *buf;
 
 	field = hidinput_get_led_field(hid);
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 3b4739bde05d..2e1736ba2444 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -370,7 +370,8 @@ static const struct attribute_group mt_attribute_group = {
 static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
 {
 	struct mt_device *td = hid_get_drvdata(hdev);
-	int ret, size = hid_report_len(report);
+	int ret;
+	u32 size = hid_report_len(report);
 	u8 *buf;
 
 	/*
@@ -1183,7 +1184,7 @@ static void mt_set_input_mode(struct hid_device *hdev)
 	struct hid_report_enum *re;
 	struct mt_class *cls = &td->mtclass;
 	char *buf;
-	int report_len;
+	u32 report_len;
 
 	if (td->inputmode < 0)
 		return;
diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
index c6c05df3e8d2..9c9362149641 100644
--- a/drivers/hid/hid-rmi.c
+++ b/drivers/hid/hid-rmi.c
@@ -89,8 +89,8 @@ struct rmi_data {
 	u8 *writeReport;
 	u8 *readReport;
 
-	int input_report_size;
-	int output_report_size;
+	u32 input_report_size;
+	u32 output_report_size;
 
 	unsigned long flags;
 
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 409543160af7..b54ef1ffcbec 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -219,7 +219,7 @@ static void wacom_feature_mapping(struct hid_device *hdev,
 	unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid);
 	u8 *data;
 	int ret;
-	int n;
+	u32 n;
 
 	switch (equivalent_usage) {
 	case HID_DG_CONTACTMAX:
@@ -519,7 +519,7 @@ static int wacom_set_device_mode(struct hid_device *hdev,
 	u8 *rep_data;
 	struct hid_report *r;
 	struct hid_report_enum *re;
-	int length;
+	u32 length;
 	int error = -ENOMEM, limit = 0;
 
 	if (wacom_wac->mode_report < 0)
-- 
cgit v1.2.3


From b9ec7009298ee0e163339484992252d8dff636dc Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Sat, 6 Jan 2018 15:50:27 +0000
Subject: HID: asus: make array 'buf' static const

Don't populate the const read-only array 'buf' on the stack but instead
make it static. Makes the object code smaller by 26 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  14378	   2384	     64	  16826	   41ba	linux/drivers/hid/hid-asus.o

After:
   text	   data	    bss	    dec	    hex	filename
  14296	   2440	     64	  16800	   41a0	linux/drivers/hid/hid-asus.o

(gcc version 7.2.0 x86_64)

[jkosina@suse.cz: change commit message slightly]
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-asus.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'drivers')

diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index 88b9703318e4..d92f8aa2876b 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -570,7 +570,9 @@ static int asus_input_mapping(struct hid_device *hdev,
 static int asus_start_multitouch(struct hid_device *hdev)
 {
 	int ret;
-	const unsigned char buf[] = { FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00 };
+	static const unsigned char buf[] = {
+		FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00
+	};
 	unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL);
 
 	if (!dmabuf) {
-- 
cgit v1.2.3


From 336fd4f5f25157e9e8bd50e898a1bbcd99eaea46 Mon Sep 17 00:00:00 2001
From: Xiongfeng Wang <xiongfeng.wang@linaro.org>
Date: Tue, 9 Jan 2018 20:23:32 +0800
Subject: HID: uhid: use strlcpy() instead of strncpy()

gcc-8 reports

drivers/hid/uhid.c: In function 'uhid_dev_create2':
./include/linux/string.h:245:9: warning: '__builtin_strncpy' output may
be truncated copying 127 bytes from a string of length 127
[-Wstringop-truncation]

The compiler require that the input param 'len' of strncpy() should be
greater than the length of the src string, so that '\0' is copied as
well. We can just use strlcpy() to avoid this warning.

Signed-off-by: Xiongfeng Wang <xiongfeng.wang@linaro.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/uhid.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index fc43850a155e..39b60e531183 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -496,12 +496,12 @@ static int uhid_dev_create2(struct uhid_device *uhid,
 		goto err_free;
 	}
 
-	len = min(sizeof(hid->name), sizeof(ev->u.create2.name)) - 1;
-	strncpy(hid->name, ev->u.create2.name, len);
-	len = min(sizeof(hid->phys), sizeof(ev->u.create2.phys)) - 1;
-	strncpy(hid->phys, ev->u.create2.phys, len);
-	len = min(sizeof(hid->uniq), sizeof(ev->u.create2.uniq)) - 1;
-	strncpy(hid->uniq, ev->u.create2.uniq, len);
+	len = min(sizeof(hid->name), sizeof(ev->u.create2.name));
+	strlcpy(hid->name, ev->u.create2.name, len);
+	len = min(sizeof(hid->phys), sizeof(ev->u.create2.phys));
+	strlcpy(hid->phys, ev->u.create2.phys, len);
+	len = min(sizeof(hid->uniq), sizeof(ev->u.create2.uniq));
+	strlcpy(hid->uniq, ev->u.create2.uniq, len);
 
 	hid->ll_driver = &uhid_hid_driver;
 	hid->bus = ev->u.create2.bus;
-- 
cgit v1.2.3


From b9b7a86fc1cca26d8e4fb841dc127ceb985f85c5 Mon Sep 17 00:00:00 2001
From: Aaron Bottegal <aaronbottegal@gmail.com>
Date: Fri, 22 Dec 2017 03:38:14 -0500
Subject: HID: corsair: Add K70 Vengeance and K70 RAPIDFIRE to

K70 Vengeance sends garbage keypresses when changing  backlight brightness.
This hooks to the existing corsair driver, which filters out those
invalid keypresses on similar devices in the input mapping code.

V2: Fix spelling.

Signed-off-by: Aaron Bottegal <aaronbottegal@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-corsair.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'drivers')

diff --git a/drivers/hid/hid-corsair.c b/drivers/hid/hid-corsair.c
index 6c9c8fe1bcb2..ec9e060ec46c 100644
--- a/drivers/hid/hid-corsair.c
+++ b/drivers/hid/hid-corsair.c
@@ -2,11 +2,14 @@
  * HID driver for Corsair devices
  *
  * Supported devices:
+ *  - Vengeance K70 Keyboard
+ *  - K70 RAPIDFIRE Keyboard
  *  - Vengeance K90 Keyboard
  *  - Scimitar PRO RGB Gaming Mouse
  *
  * Copyright (c) 2015 Clement Vuchener
  * Copyright (c) 2017 Oscar Campos
+ * Copyright (c) 2017 Aaron Bottegal
  */
 
 /*
@@ -721,6 +724,11 @@ static const struct hid_device_id corsair_devices[] = {
             USB_DEVICE_ID_CORSAIR_GLAIVE_RGB) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR,
             USB_DEVICE_ID_CORSAIR_SCIMITAR_PRO_RGB) },
+	/*
+	 * Vengeance K70 and K70 RAPIDFIRE share product IDs.
+	 */
+	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR,
+            USB_DEVICE_ID_CORSAIR_K70R) },
 	{}
 };
 
-- 
cgit v1.2.3


From 79837eded640501206a60fb68e76ad2d027457ec Mon Sep 17 00:00:00 2001
From: Tomasz Kramkowski <tk@the-tk.com>
Date: Thu, 1 Mar 2018 17:22:23 +0000
Subject: HID: elecom: refer to trackballs by model name instead of series

This patch changes all references to ELECOM trackballs using their
series name to refer to them by their model name.

ELECOM provides multiple series of mice such as EX-G, HUGE, and DEFT.
Although it has not caused conflicts in the driver, there can be more
than one iteration of mice in each series. For example, there are 7
variants of EX-G trackballs but only three (M-XT3URBK, M-XT3DRBK, and
M-XT4DRBK) need a driver to work correctly.

There are also 4 DEFT series trackballs but two of them have the same
VID:PID as the other two. I picked the earlier model for the naming of
the PID macros.

Signed-off-by: Tomasz Kramkowski <tk@the-tk.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/Kconfig      |  6 +++---
 drivers/hid/hid-elecom.c | 30 +++++++++++++++---------------
 drivers/hid/hid-ids.h    | 12 ++++++------
 drivers/hid/hid-quirks.c | 12 ++++++------
 4 files changed, 30 insertions(+), 30 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 19c499f5623d..4989ec4028bf 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -280,9 +280,9 @@ config HID_ELECOM
 	---help---
 	Support for ELECOM devices:
 	  - BM084 Bluetooth Mouse
-	  - EX-G Trackball (Wired and wireless)
-	  - DEFT Trackball (Wired and wireless)
-	  - HUGE Trackball (Wired and wireless)
+	  - EX-G Trackballs (M-XT3DRBK, M-XT3URBK)
+	  - DEFT Trackballs (M-DT1DRBK, M-DT1URBK, M-DT2DRBK, M-DT2URBK)
+	  - HUGE Trackballs (M-HT1DRBK, M-HT1URBK)
 
 config HID_ELO
 	tristate "ELO USB 4000/4500 touchscreen"
diff --git a/drivers/hid/hid-elecom.c b/drivers/hid/hid-elecom.c
index 1a1ecc491c02..21e15dc91aac 100644
--- a/drivers/hid/hid-elecom.c
+++ b/drivers/hid/hid-elecom.c
@@ -1,9 +1,9 @@
 /*
  *  HID driver for ELECOM devices:
  *  - BM084 Bluetooth Mouse
- *  - EX-G Trackball (Wired and wireless)
- *  - DEFT Trackball (Wired and wireless)
- *  - HUGE Trackball (Wired and wireless)
+ *  - EX-G Trackballs (M-XT3DRBK, M-XT3URBK)
+ *  - DEFT Trackballs (M-DT1DRBK, M-DT1URBK, M-DT2DRBK, M-DT2URBK)
+ *  - HUGE Trackballs (M-HT1DRBK, M-HT1URBK)
  *
  *  Copyright (c) 2010 Richard Nauber <Richard.Nauber@gmail.com>
  *  Copyright (c) 2016 Yuxuan Shui <yshuiv7@gmail.com>
@@ -65,14 +65,14 @@ static __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 			rdesc[47] = 0x00;
 		}
 		break;
-	case USB_DEVICE_ID_ELECOM_EX_G_WIRED:
-	case USB_DEVICE_ID_ELECOM_EX_G_WIRELESS:
+	case USB_DEVICE_ID_ELECOM_M_XT3URBK:
+	case USB_DEVICE_ID_ELECOM_M_XT3DRBK:
 		mouse_button_fixup(hdev, rdesc, *rsize, 6);
 		break;
-	case USB_DEVICE_ID_ELECOM_DEFT_WIRED:
-	case USB_DEVICE_ID_ELECOM_DEFT_WIRELESS:
-	case USB_DEVICE_ID_ELECOM_HUGE_WIRED:
-	case USB_DEVICE_ID_ELECOM_HUGE_WIRELESS:
+	case USB_DEVICE_ID_ELECOM_M_DT1URBK:
+	case USB_DEVICE_ID_ELECOM_M_DT1DRBK:
+	case USB_DEVICE_ID_ELECOM_M_HT1URBK:
+	case USB_DEVICE_ID_ELECOM_M_HT1DRBK:
 		mouse_button_fixup(hdev, rdesc, *rsize, 8);
 		break;
 	}
@@ -81,12 +81,12 @@ static __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 
 static const struct hid_device_id elecom_devices[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_EX_G_WIRED) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_EX_G_WIRELESS) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_DEFT_WIRED) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_DEFT_WIRELESS) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_HUGE_WIRED) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_HUGE_WIRELESS) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1URBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1DRBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1URBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1DRBK) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, elecom_devices);
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 43ddcdfbd0da..830c022c3624 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -371,12 +371,12 @@
 
 #define USB_VENDOR_ID_ELECOM		0x056e
 #define USB_DEVICE_ID_ELECOM_BM084	0x0061
-#define USB_DEVICE_ID_ELECOM_EX_G_WIRED	0x00fb
-#define USB_DEVICE_ID_ELECOM_EX_G_WIRELESS	0x00fc
-#define USB_DEVICE_ID_ELECOM_DEFT_WIRED	0x00fe
-#define USB_DEVICE_ID_ELECOM_DEFT_WIRELESS	0x00ff
-#define USB_DEVICE_ID_ELECOM_HUGE_WIRED	0x010c
-#define USB_DEVICE_ID_ELECOM_HUGE_WIRELESS	0x010d
+#define USB_DEVICE_ID_ELECOM_M_XT3URBK	0x00fb
+#define USB_DEVICE_ID_ELECOM_M_XT3DRBK	0x00fc
+#define USB_DEVICE_ID_ELECOM_M_DT1URBK	0x00fe
+#define USB_DEVICE_ID_ELECOM_M_DT1DRBK	0x00ff
+#define USB_DEVICE_ID_ELECOM_M_HT1URBK	0x010c
+#define USB_DEVICE_ID_ELECOM_M_HT1DRBK	0x010d
 
 #define USB_VENDOR_ID_DREAM_CHEEKY	0x1d34
 #define USB_DEVICE_ID_DREAM_CHEEKY_WN	0x0004
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index 5f6035a5ce36..9675cd500776 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -335,12 +335,12 @@ static const struct hid_device_id hid_have_special_driver[] = {
 #endif
 #if IS_ENABLED(CONFIG_HID_ELECOM)
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_EX_G_WIRED) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_EX_G_WIRELESS) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_DEFT_WIRED) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_DEFT_WIRELESS) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_HUGE_WIRED) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_HUGE_WIRELESS) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1URBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1DRBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1URBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1DRBK) },
 #endif
 #if IS_ENABLED(CONFIG_HID_ELO)
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) },
-- 
cgit v1.2.3


From fbb77e88f08ce04daa9b1ff2381be7ebc9f24b6f Mon Sep 17 00:00:00 2001
From: Tomasz Kramkowski <tk@the-tk.com>
Date: Thu, 1 Mar 2018 17:22:24 +0000
Subject: HID: elecom: add support for EX-G M-XT4DRBK trackball

This patch enables the 6th button on the ELECOM EX-G M-XT4DRBK
trackball mouse.

This is a left handed EX-G variant which only comes in a wireless (D)
model. It has a total of 6 buttons but one of these is not available
because of how the HID descriptor is configured.

Signed-off-by: Tomasz Kramkowski <tk@the-tk.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-elecom.c | 4 +++-
 drivers/hid/hid-ids.h    | 1 +
 drivers/hid/hid-quirks.c | 1 +
 3 files changed, 5 insertions(+), 1 deletion(-)

(limited to 'drivers')

diff --git a/drivers/hid/hid-elecom.c b/drivers/hid/hid-elecom.c
index 21e15dc91aac..ae8e9413c79d 100644
--- a/drivers/hid/hid-elecom.c
+++ b/drivers/hid/hid-elecom.c
@@ -1,7 +1,7 @@
 /*
  *  HID driver for ELECOM devices:
  *  - BM084 Bluetooth Mouse
- *  - EX-G Trackballs (M-XT3DRBK, M-XT3URBK)
+ *  - EX-G Trackballs (M-XT3DRBK, M-XT3URBK, M-XT4DRBK)
  *  - DEFT Trackballs (M-DT1DRBK, M-DT1URBK, M-DT2DRBK, M-DT2URBK)
  *  - HUGE Trackballs (M-HT1DRBK, M-HT1URBK)
  *
@@ -67,6 +67,7 @@ static __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		break;
 	case USB_DEVICE_ID_ELECOM_M_XT3URBK:
 	case USB_DEVICE_ID_ELECOM_M_XT3DRBK:
+	case USB_DEVICE_ID_ELECOM_M_XT4DRBK:
 		mouse_button_fixup(hdev, rdesc, *rsize, 6);
 		break;
 	case USB_DEVICE_ID_ELECOM_M_DT1URBK:
@@ -83,6 +84,7 @@ static const struct hid_device_id elecom_devices[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT4DRBK) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1URBK) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1DRBK) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1URBK) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 830c022c3624..c8902f2f0e23 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -373,6 +373,7 @@
 #define USB_DEVICE_ID_ELECOM_BM084	0x0061
 #define USB_DEVICE_ID_ELECOM_M_XT3URBK	0x00fb
 #define USB_DEVICE_ID_ELECOM_M_XT3DRBK	0x00fc
+#define USB_DEVICE_ID_ELECOM_M_XT4DRBK	0x00fd
 #define USB_DEVICE_ID_ELECOM_M_DT1URBK	0x00fe
 #define USB_DEVICE_ID_ELECOM_M_DT1DRBK	0x00ff
 #define USB_DEVICE_ID_ELECOM_M_HT1URBK	0x010c
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index 9675cd500776..91049dff301f 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -337,6 +337,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT4DRBK) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1URBK) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1DRBK) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_HT1URBK) },
-- 
cgit v1.2.3


From 04230f46025536896b15af22d8fae7fa519f9740 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 5 Mar 2018 18:06:24 -0600
Subject: HID: hid-ntrig: use true and false for boolean values

Assign true or false to boolean variables instead of an integer value.

This issue was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-ntrig.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c
index 3d121d8ee980..43b1c7234316 100644
--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -591,8 +591,8 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
 	switch (usage->hid) {
 	case 0xff000001:
 		/* Tag indicating the start of a multitouch group */
-		nd->reading_mt = 1;
-		nd->first_contact_touch = 0;
+		nd->reading_mt = true;
+		nd->first_contact_touch = false;
 		break;
 	case HID_DG_TIPSWITCH:
 		nd->tipswitch = value;
@@ -663,7 +663,7 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
 			 * even if deactivation slack is turned off.
 			 */
 			nd->act_state = deactivate_slack - 1;
-			nd->confidence = 0;
+			nd->confidence = false;
 			break;
 		}
 
@@ -679,7 +679,7 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
 			 */
 			if (nd->w < nd->min_width ||
 			    nd->h < nd->min_height)
-				nd->confidence = 0;
+				nd->confidence = false;
 		} else
 			break;
 
@@ -758,7 +758,7 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
 		if (!nd->reading_mt) /* Just to be sure */
 			break;
 
-		nd->reading_mt = 0;
+		nd->reading_mt = false;
 
 
 		/*
@@ -910,7 +910,7 @@ static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		return -ENOMEM;
 	}
 
-	nd->reading_mt = 0;
+	nd->reading_mt = false;
 	nd->min_width = 0;
 	nd->min_height = 0;
 	nd->activate_slack = activate_slack;
-- 
cgit v1.2.3


From 001fab49dd4fcf64b1b8ccecb8656baa3f3f1a9a Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Mon, 5 Mar 2018 18:10:46 -0600
Subject: HID: hid-multitouch: Use true and false for boolean values

Assign true or false to boolean variables instead of an integer value.

This issue was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-multitouch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers')

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 3b4739bde05d..d378057191fd 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -722,7 +722,7 @@ static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
 		}
 
 		if (!(td->mtclass.quirks & MT_QUIRK_CONFIDENCE))
-			s->confidence_state = 1;
+			s->confidence_state = true;
 		active = (s->touch_state || s->inrange_state) &&
 							s->confidence_state;
 
-- 
cgit v1.2.3


From b7289cb1cf99d432c894b9da7a54e24f73ae4c93 Mon Sep 17 00:00:00 2001
From: Todd Kelner <tsopdump@gmail.com>
Date: Sat, 17 Feb 2018 16:47:10 -0700
Subject: HID: sony: Add touchpad support for NSG-MR5U and NSG-MR7U remotes

Sony's NSG-MR5U and NSG-MR7U remote controls have a full keyboard and a
touchpad.  The keyboard is already supported by the existing Linux
kernel and drivers but the touchpad is not recognized.  This patch adds
the coded needed to bring full functionality to the touchpad.

Note that these remotes use the vendor code for SMK even though they are
Sony branded.

Known limitations
- The built-in accelerometers are not supported by these changes
- When the Drag (Fn) key is used as a mouse button, the button is
automatically released when the key begins repeating.  There are two
  workarounds for this 1) Use the button behind the touchpad instead of
  the Drag (Fn) key or 2) Disable the key repeat functionality or
  increase the key repeat delay.

Signed-off-by: Todd Kelner <tsopdump@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-ids.h    |   3 ++
 drivers/hid/hid-quirks.c |   2 +
 drivers/hid/hid-sony.c   | 131 ++++++++++++++++++++++++++++++++++++++++++++---
 3 files changed, 130 insertions(+), 6 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 43ddcdfbd0da..5d563871dffe 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -958,6 +958,9 @@
 
 #define USB_VENDOR_ID_SMK		0x0609
 #define USB_DEVICE_ID_SMK_PS3_BDREMOTE	0x0306
+#define USB_DEVICE_ID_SMK_NSG_MR5U_REMOTE       0x0368
+#define USB_DEVICE_ID_SMK_NSG_MR7U_REMOTE       0x0369
+
 
 #define USB_VENDOR_ID_SONY			0x054c
 #define USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE	0x024b
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index 5f6035a5ce36..376cbbc13454 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -608,6 +608,8 @@ static const struct hid_device_id hid_have_special_driver[] = {
 #if IS_ENABLED(CONFIG_HID_SONY)
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_PS3_BDREMOTE) },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR5U_REMOTE) },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR7U_REMOTE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER) },
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index ccdc5f2d01b1..e475c5073c99 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -9,6 +9,7 @@
  *  Copyright (c) 2006-2013 Jiri Kosina
  *  Copyright (c) 2013 Colin Leitner <colin.leitner@gmail.com>
  *  Copyright (c) 2014-2016 Frank Praznik <frank.praznik@gmail.com>
+ *  Copyright (c) 2018 Todd Kelner
  */
 
 /*
@@ -55,6 +56,8 @@
 #define NAVIGATION_CONTROLLER_BT  BIT(11)
 #define SINO_LITE_CONTROLLER      BIT(12)
 #define FUTUREMAX_DANCE_MAT       BIT(13)
+#define NSG_MR5U_REMOTE_BT        BIT(14)
+#define NSG_MR7U_REMOTE_BT        BIT(15)
 
 #define SIXAXIS_CONTROLLER (SIXAXIS_CONTROLLER_USB | SIXAXIS_CONTROLLER_BT)
 #define MOTION_CONTROLLER (MOTION_CONTROLLER_USB | MOTION_CONTROLLER_BT)
@@ -72,8 +75,11 @@
 				MOTION_CONTROLLER)
 #define SONY_BT_DEVICE (SIXAXIS_CONTROLLER_BT | DUALSHOCK4_CONTROLLER_BT |\
 			MOTION_CONTROLLER_BT | NAVIGATION_CONTROLLER_BT)
+#define NSG_MRXU_REMOTE (NSG_MR5U_REMOTE_BT | NSG_MR7U_REMOTE_BT)
 
 #define MAX_LEDS 4
+#define NSG_MRXU_MAX_X 1667
+#define NSG_MRXU_MAX_Y 1868
 
 
 /* PS/3 Motion controller */
@@ -1098,6 +1104,80 @@ static void dualshock4_parse_report(struct sony_sc *sc, u8 *rd, int size)
 	}
 }
 
+static void nsg_mrxu_parse_report(struct sony_sc *sc, u8 *rd, int size)
+{
+	int n, offset, relx, rely;
+	u8 active;
+
+	/*
+	 * The NSG-MRxU multi-touch trackpad data starts at offset 1 and
+	 *   the touch-related data starts at offset 2.
+	 * For the first byte, bit 0 is set when touchpad button is pressed.
+	 * Bit 2 is set when a touch is active and the drag (Fn) key is pressed.
+	 * This drag key is mapped to BTN_LEFT.  It is operational only when a 
+	 *   touch point is active.
+	 * Bit 4 is set when only the first touch point is active.
+	 * Bit 6 is set when only the second touch point is active.
+	 * Bits 5 and 7 are set when both touch points are active.
+	 * The next 3 bytes are two 12 bit X/Y coordinates for the first touch.
+	 * The following byte, offset 5, has the touch width and length.
+	 *   Bits 0-4=X (width), bits 5-7=Y (length).
+	 * A signed relative X coordinate is at offset 6.
+	 * The bytes at offset 7-9 are the second touch X/Y coordinates.
+	 * Offset 10 has the second touch width and length.
+	 * Offset 11 has the relative Y coordinate.
+	 */
+	offset = 1;
+
+	input_report_key(sc->touchpad, BTN_LEFT, rd[offset] & 0x0F);
+	active = (rd[offset] >> 4);
+	relx = (s8) rd[offset+5];
+	rely = ((s8) rd[offset+10]) * -1;
+
+	offset++;
+
+	for (n = 0; n < 2; n++) {
+		u16 x, y;
+		u8 contactx, contacty;
+
+		x = rd[offset] | ((rd[offset+1] & 0x0F) << 8);
+		y = ((rd[offset+1] & 0xF0) >> 4) | (rd[offset+2] << 4);
+
+		input_mt_slot(sc->touchpad, n);
+		input_mt_report_slot_state(sc->touchpad, MT_TOOL_FINGER, active & 0x03);
+
+		if (active & 0x03) {
+			contactx = rd[offset+3] & 0x0F;
+			contacty = rd[offset+3] >> 4;
+			input_report_abs(sc->touchpad, ABS_MT_TOUCH_MAJOR,
+				max(contactx, contacty));
+			input_report_abs(sc->touchpad, ABS_MT_TOUCH_MINOR,
+				min(contactx, contacty));
+			input_report_abs(sc->touchpad, ABS_MT_ORIENTATION,
+				(bool) (contactx > contacty));
+			input_report_abs(sc->touchpad, ABS_MT_POSITION_X, x);
+			input_report_abs(sc->touchpad, ABS_MT_POSITION_Y,
+				NSG_MRXU_MAX_Y - y);
+			/*
+			 * The relative coordinates belong to the first touch
+			 * point, when present, or to the second touch point
+			 * when the first is not active.
+			 */
+			if ((n == 0) || ((n == 1) && (active & 0x01))) {
+				input_report_rel(sc->touchpad, REL_X, relx);
+				input_report_rel(sc->touchpad, REL_Y, rely);
+			}
+		}
+
+		offset += 5;
+		active >>= 2;
+	}
+
+	input_mt_sync_frame(sc->touchpad);
+
+	input_sync(sc->touchpad);
+}
+
 static int sony_raw_event(struct hid_device *hdev, struct hid_report *report,
 		u8 *rd, int size)
 {
@@ -1206,6 +1286,10 @@ static int sony_raw_event(struct hid_device *hdev, struct hid_report *report,
 		}
 
 		dualshock4_parse_report(sc, rd, size);
+
+	} else if ((sc->quirks & NSG_MRXU_REMOTE) && rd[0] == 0x02) {
+		nsg_mrxu_parse_report(sc, rd, size);
+		return 1;
 	}
 
 	if (sc->defer_initialization) {
@@ -1263,7 +1347,7 @@ static int sony_mapping(struct hid_device *hdev, struct hid_input *hi,
 }
 
 static int sony_register_touchpad(struct sony_sc *sc, int touch_count,
-					int w, int h)
+		int w, int h, int touch_major, int touch_minor, int orientation)
 {
 	size_t name_sz;
 	char *name;
@@ -1294,10 +1378,6 @@ static int sony_register_touchpad(struct sony_sc *sc, int touch_count,
 	snprintf(name, name_sz, "%s" DS4_TOUCHPAD_SUFFIX, sc->hdev->name);
 	sc->touchpad->name = name;
 
-	ret = input_mt_init_slots(sc->touchpad, touch_count, INPUT_MT_POINTER);
-	if (ret < 0)
-		goto err;
-
 	/* We map the button underneath the touchpad to BTN_LEFT. */
 	__set_bit(EV_KEY, sc->touchpad->evbit);
 	__set_bit(BTN_LEFT, sc->touchpad->keybit);
@@ -1306,6 +1386,25 @@ static int sony_register_touchpad(struct sony_sc *sc, int touch_count,
 	input_set_abs_params(sc->touchpad, ABS_MT_POSITION_X, 0, w, 0, 0);
 	input_set_abs_params(sc->touchpad, ABS_MT_POSITION_Y, 0, h, 0, 0);
 
+	if (touch_major > 0) {
+		input_set_abs_params(sc->touchpad, ABS_MT_TOUCH_MAJOR, 
+			0, touch_major, 0, 0);
+		if (touch_minor > 0)
+			input_set_abs_params(sc->touchpad, ABS_MT_TOUCH_MINOR, 
+				0, touch_minor, 0, 0);
+		if (orientation > 0)
+			input_set_abs_params(sc->touchpad, ABS_MT_ORIENTATION, 
+				0, orientation, 0, 0);
+	}
+
+	if (sc->quirks & NSG_MRXU_REMOTE) {
+		__set_bit(EV_REL, sc->touchpad->evbit);
+	}
+
+	ret = input_mt_init_slots(sc->touchpad, touch_count, INPUT_MT_POINTER);
+	if (ret < 0)
+		goto err;
+
 	ret = input_register_device(sc->touchpad);
 	if (ret < 0)
 		goto err;
@@ -2690,7 +2789,7 @@ static int sony_input_configured(struct hid_device *hdev,
 		 * The Dualshock 4 touchpad supports 2 touches and has a
 		 * resolution of 1920x942 (44.86 dots/mm).
 		 */
-		ret = sony_register_touchpad(sc, 2, 1920, 942);
+		ret = sony_register_touchpad(sc, 2, 1920, 942, 0, 0, 0);
 		if (ret) {
 			hid_err(sc->hdev,
 			"Unable to initialize multi-touch slots: %d\n",
@@ -2721,6 +2820,20 @@ static int sony_input_configured(struct hid_device *hdev,
 		}
 
 		sony_init_output_report(sc, dualshock4_send_output_report);
+	} else if (sc->quirks & NSG_MRXU_REMOTE) {
+		/*
+		 * The NSG-MRxU touchpad supports 2 touches and has a
+		 * resolution of 1667x1868
+		 */
+		ret = sony_register_touchpad(sc, 2,
+			NSG_MRXU_MAX_X, NSG_MRXU_MAX_Y, 15, 15, 1);
+		if (ret) {
+			hid_err(sc->hdev,
+			"Unable to initialize multi-touch slots: %d\n",
+			ret);
+			goto err_stop;
+		}
+
 	} else if (sc->quirks & MOTION_CONTROLLER) {
 		sony_init_output_report(sc, motion_send_output_report);
 	} else {
@@ -2969,6 +3082,12 @@ static const struct hid_device_id sony_devices[] = {
 	/* Nyko Core Controller for PS3 */
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SINO_LITE, USB_DEVICE_ID_SINO_LITE_CONTROLLER),
 		.driver_data = SIXAXIS_CONTROLLER_USB | SINO_LITE_CONTROLLER },
+	/* SMK-Link NSG-MR5U Remote Control */
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR5U_REMOTE),
+		.driver_data = NSG_MR5U_REMOTE_BT },
+	/* SMK-Link NSG-MR7U Remote Control */
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_NSG_MR7U_REMOTE),
+		.driver_data = NSG_MR7U_REMOTE_BT },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, sony_devices);
-- 
cgit v1.2.3


From c17a7476e4c41884d82e3675c25ceae982c07a63 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Fri, 8 Dec 2017 15:29:44 +0100
Subject: HID: core: rewrite the hid-generic automatic unbind

We actually can have the unbind/rebind logic in hid-core.c, leaving
only the match function in hid-generic.

This makes hid-generic simpler and the whole logic simpler too.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-core.c    | 35 ++++++++++++++++++++++++-----------
 drivers/hid/hid-generic.c | 33 ---------------------------------
 include/linux/hid.h       |  4 ----
 3 files changed, 24 insertions(+), 48 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index c2560aae5542..c058bb911ca1 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2197,31 +2197,40 @@ void hid_destroy_device(struct hid_device *hdev)
 EXPORT_SYMBOL_GPL(hid_destroy_device);
 
 
-static int __bus_add_driver(struct device_driver *drv, void *data)
+static int __hid_bus_reprobe_drivers(struct device *dev, void *data)
 {
-	struct hid_driver *added_hdrv = data;
-	struct hid_driver *hdrv = to_hid_driver(drv);
+	struct hid_driver *hdrv = data;
+	struct hid_device *hdev = to_hid_device(dev);
 
-	if (hdrv->bus_add_driver)
-		hdrv->bus_add_driver(added_hdrv);
+	if (hdev->driver == hdrv &&
+	    !hdrv->match(hdev, hid_ignore_special_drivers))
+		return device_reprobe(dev);
 
 	return 0;
 }
 
-static int __bus_removed_driver(struct device_driver *drv, void *data)
+static int __hid_bus_driver_added(struct device_driver *drv, void *data)
 {
-	struct hid_driver *removed_hdrv = data;
 	struct hid_driver *hdrv = to_hid_driver(drv);
 
-	if (hdrv->bus_removed_driver)
-		hdrv->bus_removed_driver(removed_hdrv);
+	if (hdrv->match) {
+		bus_for_each_dev(&hid_bus_type, NULL, hdrv,
+				 __hid_bus_reprobe_drivers);
+	}
 
 	return 0;
 }
 
+static int __bus_removed_driver(struct device_driver *drv, void *data)
+{
+	return bus_rescan_devices(&hid_bus_type);
+}
+
 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
 		const char *mod_name)
 {
+	int ret;
+
 	hdrv->driver.name = hdrv->name;
 	hdrv->driver.bus = &hid_bus_type;
 	hdrv->driver.owner = owner;
@@ -2230,9 +2239,13 @@ int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
 	INIT_LIST_HEAD(&hdrv->dyn_list);
 	spin_lock_init(&hdrv->dyn_lock);
 
-	bus_for_each_drv(&hid_bus_type, NULL, hdrv, __bus_add_driver);
+	ret = driver_register(&hdrv->driver);
+
+	if (ret == 0)
+		bus_for_each_drv(&hid_bus_type, NULL, NULL,
+				 __hid_bus_driver_added);
 
-	return driver_register(&hdrv->driver);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(__hid_register_driver);
 
diff --git a/drivers/hid/hid-generic.c b/drivers/hid/hid-generic.c
index 3c0a1bf433d7..c25b4718de44 100644
--- a/drivers/hid/hid-generic.c
+++ b/drivers/hid/hid-generic.c
@@ -26,37 +26,6 @@
 
 static struct hid_driver hid_generic;
 
-static int __unmap_hid_generic(struct device *dev, void *data)
-{
-	struct hid_driver *hdrv = data;
-	struct hid_device *hdev = to_hid_device(dev);
-
-	/* only unbind matching devices already bound to hid-generic */
-	if (hdev->driver != &hid_generic ||
-	    hid_match_device(hdev, hdrv) == NULL)
-		return 0;
-
-	if (dev->parent)	/* Needed for USB */
-		device_lock(dev->parent);
-	device_release_driver(dev);
-	if (dev->parent)
-		device_unlock(dev->parent);
-
-	return 0;
-}
-
-static void hid_generic_add_driver(struct hid_driver *hdrv)
-{
-	bus_for_each_dev(&hid_bus_type, NULL, hdrv, __unmap_hid_generic);
-}
-
-static void hid_generic_removed_driver(struct hid_driver *hdrv)
-{
-	int ret;
-
-	ret = driver_attach(&hid_generic.driver);
-}
-
 static int __check_hid_generic(struct device_driver *drv, void *data)
 {
 	struct hid_driver *hdrv = to_hid_driver(drv);
@@ -97,8 +66,6 @@ static struct hid_driver hid_generic = {
 	.name = "hid-generic",
 	.id_table = hid_table,
 	.match = hid_generic_match,
-	.bus_add_driver = hid_generic_add_driver,
-	.bus_removed_driver = hid_generic_removed_driver,
 };
 module_hid_driver(hid_generic);
 
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 091a81cf330f..a62ee4a609ac 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -686,8 +686,6 @@ struct hid_usage_id {
  * @input_mapped: invoked on input registering after mapping an usage
  * @input_configured: invoked just before the device is registered
  * @feature_mapping: invoked on feature registering
- * @bus_add_driver: invoked when a HID driver is about to be added
- * @bus_removed_driver: invoked when a HID driver has been removed
  * @suspend: invoked on suspend (NULL means nop)
  * @resume: invoked on resume if device was not reset (NULL means nop)
  * @reset_resume: invoked on resume if device was reset (NULL means nop)
@@ -742,8 +740,6 @@ struct hid_driver {
 	void (*feature_mapping)(struct hid_device *hdev,
 			struct hid_field *field,
 			struct hid_usage *usage);
-	void (*bus_add_driver)(struct hid_driver *driver);
-	void (*bus_removed_driver)(struct hid_driver *driver);
 #ifdef CONFIG_PM
 	int (*suspend)(struct hid_device *hdev, pm_message_t message);
 	int (*resume)(struct hid_device *hdev);
-- 
cgit v1.2.3


From 87046b6c995c50c11c8bd4a71877df83f99b3516 Mon Sep 17 00:00:00 2001
From: Aaron Armstrong Skomra <skomra@gmail.com>
Date: Tue, 6 Mar 2018 10:48:33 -0800
Subject: HID: wacom: Add support for 3rd generation Intuos BT

Use the code path that predates generic device support.

Signed-off-by: Aaron Armstrong Skomra <skomra@gmail.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/wacom_wac.c | 113 +++++++++++++++++++++++++++++++++++++++---------
 drivers/hid/wacom_wac.h |   1 +
 2 files changed, 94 insertions(+), 20 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 90c38a0523e9..d532c1ebf2ee 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1202,15 +1202,24 @@ static int wacom_wac_finger_count_touches(struct wacom_wac *wacom)
 
 static void wacom_intuos_pro2_bt_pen(struct wacom_wac *wacom)
 {
-	const int pen_frame_len = 14;
-	const int pen_frames = 7;
+	int pen_frame_len, pen_frames;
 
 	struct input_dev *pen_input = wacom->pen_input;
 	unsigned char *data = wacom->data;
 	int i;
 
-	wacom->serial[0] = get_unaligned_le64(&data[99]);
-	wacom->id[0]     = get_unaligned_le16(&data[107]);
+	if (wacom->features.type == INTUOSP2_BT) {
+		wacom->serial[0] = get_unaligned_le64(&data[99]);
+		wacom->id[0]     = get_unaligned_le16(&data[107]);
+		pen_frame_len = 14;
+		pen_frames = 7;
+	} else {
+		wacom->serial[0] = get_unaligned_le64(&data[33]);
+		wacom->id[0]     = get_unaligned_le16(&data[41]);
+		pen_frame_len = 8;
+		pen_frames = 4;
+	}
+
 	if (wacom->serial[0] >> 52 == 1) {
 		/* Add back in missing bits of ID for non-USI pens */
 		wacom->id[0] |= (wacom->serial[0] >> 32) & 0xFFFFF;
@@ -1227,21 +1236,35 @@ static void wacom_intuos_pro2_bt_pen(struct wacom_wac *wacom)
 			continue;
 
 		if (range) {
-			/* Fix rotation alignment: userspace expects zero at left */
-			int16_t rotation = (int16_t)get_unaligned_le16(&frame[9]);
-			rotation += 1800/4;
-			if (rotation > 899)
-				rotation -= 1800;
-
 			input_report_abs(pen_input, ABS_X, get_unaligned_le16(&frame[1]));
 			input_report_abs(pen_input, ABS_Y, get_unaligned_le16(&frame[3]));
-			input_report_abs(pen_input, ABS_TILT_X, (char)frame[7]);
-			input_report_abs(pen_input, ABS_TILT_Y, (char)frame[8]);
-			input_report_abs(pen_input, ABS_Z, rotation);
-			input_report_abs(pen_input, ABS_WHEEL, get_unaligned_le16(&frame[11]));
+
+			if (wacom->features.type == INTUOSP2_BT) {
+				/* Fix rotation alignment: userspace expects zero at left */
+				int16_t rotation =
+					(int16_t)get_unaligned_le16(&frame[9]);
+				rotation += 1800/4;
+
+				if (rotation > 899)
+					rotation -= 1800;
+
+				input_report_abs(pen_input, ABS_TILT_X,
+						 (char)frame[7]);
+				input_report_abs(pen_input, ABS_TILT_Y,
+						 (char)frame[8]);
+				input_report_abs(pen_input, ABS_Z, rotation);
+				input_report_abs(pen_input, ABS_WHEEL,
+						 get_unaligned_le16(&frame[11]));
+			}
 		}
 		input_report_abs(pen_input, ABS_PRESSURE, get_unaligned_le16(&frame[5]));
-		input_report_abs(pen_input, ABS_DISTANCE, range ? frame[13] : wacom->features.distance_max);
+		if (wacom->features.type == INTUOSP2_BT) {
+			input_report_abs(pen_input, ABS_DISTANCE,
+					 range ? frame[13] : wacom->features.distance_max);
+		} else {
+			input_report_abs(pen_input, ABS_DISTANCE,
+					 range ? frame[7] : wacom->features.distance_max);
+		}
 
 		input_report_key(pen_input, BTN_TOUCH, frame[0] & 0x01);
 		input_report_key(pen_input, BTN_STYLUS, frame[0] & 0x02);
@@ -1357,20 +1380,52 @@ static void wacom_intuos_pro2_bt_battery(struct wacom_wac *wacom)
 			     battery_status, chg, 1, chg);
 }
 
+static void wacom_intuos_gen3_bt_pad(struct wacom_wac *wacom)
+{
+	struct input_dev *pad_input = wacom->pad_input;
+	unsigned char *data = wacom->data;
+
+	int buttons = data[44];
+
+	wacom_report_numbered_buttons(pad_input, 4, buttons);
+
+	input_report_key(pad_input, wacom->tool[1], buttons ? 1 : 0);
+	input_report_abs(pad_input, ABS_MISC, buttons ? PAD_DEVICE_ID : 0);
+	input_event(pad_input, EV_MSC, MSC_SERIAL, 0xffffffff);
+
+	input_sync(pad_input);
+}
+
+static void wacom_intuos_gen3_bt_battery(struct wacom_wac *wacom)
+{
+	unsigned char *data = wacom->data;
+
+	bool chg = data[45] & 0x80;
+	int battery_status = data[45] & 0x7F;
+
+	wacom_notify_battery(wacom, WACOM_POWER_SUPPLY_STATUS_AUTO,
+			     battery_status, chg, 1, chg);
+}
+
 static int wacom_intuos_pro2_bt_irq(struct wacom_wac *wacom, size_t len)
 {
 	unsigned char *data = wacom->data;
 
-	if (data[0] != 0x80) {
+	if (data[0] != 0x80 && data[0] != 0x81) {
 		dev_dbg(wacom->pen_input->dev.parent,
 			"%s: received unknown report #%d\n", __func__, data[0]);
 		return 0;
 	}
 
 	wacom_intuos_pro2_bt_pen(wacom);
-	wacom_intuos_pro2_bt_touch(wacom);
-	wacom_intuos_pro2_bt_pad(wacom);
-	wacom_intuos_pro2_bt_battery(wacom);
+	if (wacom->features.type == INTUOSP2_BT) {
+		wacom_intuos_pro2_bt_touch(wacom);
+		wacom_intuos_pro2_bt_pad(wacom);
+		wacom_intuos_pro2_bt_battery(wacom);
+	} else {
+		wacom_intuos_gen3_bt_pad(wacom);
+		wacom_intuos_gen3_bt_battery(wacom);
+	}
 	return 0;
 }
 
@@ -3093,6 +3148,7 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
 		break;
 
 	case INTUOSP2_BT:
+	case INTUOSHT3_BT:
 		sync = wacom_intuos_pro2_bt_irq(wacom_wac, len);
 		break;
 
@@ -3272,6 +3328,12 @@ void wacom_setup_device_quirks(struct wacom *wacom)
 		features->quirks |= WACOM_QUIRK_BATTERY;
 	}
 
+	if (features->type == INTUOSHT3_BT) {
+		features->device_type |= WACOM_DEVICETYPE_PEN |
+					 WACOM_DEVICETYPE_PAD;
+		features->quirks |= WACOM_QUIRK_BATTERY;
+	}
+
 	switch (features->type) {
 	case PL:
 	case DTU:
@@ -3466,7 +3528,9 @@ int wacom_setup_pen_input_capabilities(struct input_dev *input_dev,
 	case BAMBOO_PT:
 	case BAMBOO_PEN:
 	case INTUOSHT2:
-		if (features->type == INTUOSHT2) {
+	case INTUOSHT3_BT:
+		if (features->type == INTUOSHT2 ||
+		    features->type == INTUOSHT3_BT) {
 			wacom_setup_basic_pro_pen(wacom_wac);
 		} else {
 			__clear_bit(ABS_MISC, input_dev->absbit);
@@ -3887,6 +3951,7 @@ int wacom_setup_pad_input_capabilities(struct input_dev *input_dev,
 		input_set_abs_params(input_dev, ABS_WHEEL, 0, 71, 0, 0);
 		break;
 
+	case INTUOSHT3_BT:
 	case HID_GENERIC:
 		break;
 
@@ -4415,6 +4480,12 @@ static const struct wacom_features wacom_features_0x360 =
 static const struct wacom_features wacom_features_0x361 =
 	{ "Wacom Intuos Pro L", 62200, 43200, 8191, 63,
 	  INTUOSP2_BT, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, 9, .touch_max = 10 };
+static const struct wacom_features wacom_features_0x377 =
+	{ "Wacom Intuos BT S", 15200, 9500, 4095, 63,
+	  INTUOSHT3_BT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4 };
+static const struct wacom_features wacom_features_0x379 =
+	{ "Wacom Intuos BT M", 21600, 13500, 4095, 63,
+	  INTUOSHT3_BT, WACOM_INTUOS_RES, WACOM_INTUOS_RES, 4 };
 static const struct wacom_features wacom_features_0x37A =
 	{ "Wacom One by Wacom S", 15200, 9500, 2047, 63,
 	  BAMBOO_PEN, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
@@ -4589,6 +4660,8 @@ const struct hid_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0x343) },
 	{ BT_DEVICE_WACOM(0x360) },
 	{ BT_DEVICE_WACOM(0x361) },
+	{ BT_DEVICE_WACOM(0x377) },
+	{ BT_DEVICE_WACOM(0x379) },
 	{ USB_DEVICE_WACOM(0x37A) },
 	{ USB_DEVICE_WACOM(0x37B) },
 	{ USB_DEVICE_WACOM(0x4001) },
diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index 15d9c14fbdf7..827d8fc4a3f2 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -213,6 +213,7 @@ enum {
 	INTUOSPM,
 	INTUOSPL,
 	INTUOSP2_BT,
+	INTUOSHT3_BT,
 	WACOM_21UX2,
 	WACOM_22HD,
 	DTK,
-- 
cgit v1.2.3


From f8b6a74719b5e003e28b2deb7ef91d7158333cbf Mon Sep 17 00:00:00 2001
From: Aaron Armstrong Skomra <skomra@gmail.com>
Date: Tue, 6 Mar 2018 10:48:34 -0800
Subject: HID: wacom: generic: Support multiple tools per report

Some Wacom devices contain contain Pen and Pad usages in
the same report. Future devices of this type may utilize
HID Descriptors.

The generic code path of the Wacom driver previously
assumed pen, touch, and pad reports were delivered in
separate reports. This patch adds support for processing
each collection of a report separately, in order to support
reports with multiple tools.

Signed-off-by: Aaron Armstrong Skomra <skomra@gmail.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/wacom_wac.c | 94 +++++++++++++++++++++++++++++++++++--------------
 1 file changed, 68 insertions(+), 26 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index d532c1ebf2ee..7a0a7f67e7ed 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2072,7 +2072,7 @@ static void wacom_wac_pad_pre_report(struct hid_device *hdev,
 }
 
 static void wacom_wac_pad_report(struct hid_device *hdev,
-		struct hid_report *report)
+		struct hid_report *report, struct hid_field *field)
 {
 	struct wacom *wacom = hid_get_drvdata(hdev);
 	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
@@ -2080,7 +2080,7 @@ static void wacom_wac_pad_report(struct hid_device *hdev,
 	bool active = wacom_wac->hid_data.inrange_state != 0;
 
 	/* report prox for expresskey events */
-	if ((wacom_equivalent_usage(report->field[0]->physical) == HID_DG_TABLETFUNCTIONKEY) &&
+	if ((wacom_equivalent_usage(field->physical) == HID_DG_TABLETFUNCTIONKEY) &&
 	    wacom_wac->hid_data.pad_input_event_flag) {
 		input_event(input, EV_ABS, ABS_MISC, active ? PAD_DEVICE_ID : 0);
 		input_sync(input);
@@ -2627,11 +2627,13 @@ void wacom_wac_event(struct hid_device *hdev, struct hid_field *field,
 		wacom_wac_finger_event(hdev, field, usage, value);
 }
 
-static void wacom_report_events(struct hid_device *hdev, struct hid_report *report)
+static void wacom_report_events(struct hid_device *hdev,
+				struct hid_report *report, int collection_index,
+				int field_index)
 {
 	int r;
 
-	for (r = 0; r < report->maxfield; r++) {
+	for (r = field_index; r < report->maxfield; r++) {
 		struct hid_field *field;
 		unsigned count, n;
 
@@ -2641,30 +2643,23 @@ static void wacom_report_events(struct hid_device *hdev, struct hid_report *repo
 		if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
 			continue;
 
-		for (n = 0; n < count; n++)
-			wacom_wac_event(hdev, field, &field->usage[n], field->value[n]);
+		for (n = 0 ; n < count; n++) {
+			if (field->usage[n].collection_index == collection_index)
+				wacom_wac_event(hdev, field, &field->usage[n],
+						field->value[n]);
+			else
+				return;
+		}
 	}
 }
 
-void wacom_wac_report(struct hid_device *hdev, struct hid_report *report)
+int wacom_wac_collection(struct hid_device *hdev, struct hid_report *report,
+			 int collection_index, struct hid_field *field,
+			 int field_index)
 {
 	struct wacom *wacom = hid_get_drvdata(hdev);
-	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
-	struct hid_field *field = report->field[0];
-
-	if (wacom_wac->features.type != HID_GENERIC)
-		return;
-
-	wacom_wac_battery_pre_report(hdev, report);
-
-	if (WACOM_PAD_FIELD(field) && wacom->wacom_wac.pad_input)
-		wacom_wac_pad_pre_report(hdev, report);
-	else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
-		wacom_wac_pen_pre_report(hdev, report);
-	else if (WACOM_FINGER_FIELD(field) && wacom->wacom_wac.touch_input)
-		wacom_wac_finger_pre_report(hdev, report);
 
-	wacom_report_events(hdev, report);
+	wacom_report_events(hdev, report, collection_index, field_index);
 
 	/*
 	 * Non-input reports may be sent prior to the device being
@@ -2674,16 +2669,63 @@ void wacom_wac_report(struct hid_device *hdev, struct hid_report *report)
 	 * processing functions.
 	 */
 	if (report->type != HID_INPUT_REPORT)
-		return;
-
-	wacom_wac_battery_report(hdev, report);
+		return -1;
 
 	if (WACOM_PAD_FIELD(field) && wacom->wacom_wac.pad_input)
-		wacom_wac_pad_report(hdev, report);
+		wacom_wac_pad_report(hdev, report, field);
 	else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
 		wacom_wac_pen_report(hdev, report);
 	else if (WACOM_FINGER_FIELD(field) && wacom->wacom_wac.touch_input)
 		wacom_wac_finger_report(hdev, report);
+
+	return 0;
+}
+
+void wacom_wac_report(struct hid_device *hdev, struct hid_report *report)
+{
+	struct wacom *wacom = hid_get_drvdata(hdev);
+	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+	struct hid_field *field;
+	bool pad_in_hid_field = false, pen_in_hid_field = false,
+		finger_in_hid_field = false;
+	int r;
+	int prev_collection = -1;
+
+	if (wacom_wac->features.type != HID_GENERIC)
+		return;
+
+	for (r = 0; r < report->maxfield; r++) {
+		field = report->field[r];
+
+		if (WACOM_PAD_FIELD(field))
+			pad_in_hid_field = true;
+		if (WACOM_PEN_FIELD(field))
+			pen_in_hid_field = true;
+		if (WACOM_FINGER_FIELD(field))
+			finger_in_hid_field = true;
+	}
+
+	wacom_wac_battery_pre_report(hdev, report);
+
+	if (pad_in_hid_field && wacom->wacom_wac.pad_input)
+		wacom_wac_pad_pre_report(hdev, report);
+	if (pen_in_hid_field && wacom->wacom_wac.pen_input)
+		wacom_wac_pen_pre_report(hdev, report);
+	if (finger_in_hid_field && wacom->wacom_wac.touch_input)
+		wacom_wac_finger_pre_report(hdev, report);
+
+	for (r = 0; r < report->maxfield; r++) {
+		field = report->field[r];
+
+		if (field->usage[0].collection_index != prev_collection) {
+			if (wacom_wac_collection(hdev, report,
+				field->usage[0].collection_index, field, r) < 0)
+				return;
+			prev_collection = field->usage[0].collection_index;
+		}
+	}
+
+	wacom_wac_battery_report(hdev, report);
 }
 
 static int wacom_bpt_touch(struct wacom_wac *wacom)
-- 
cgit v1.2.3


From b1f466a90c516d54bd8bea7fb142a807d7800304 Mon Sep 17 00:00:00 2001
From: Aaron Armstrong Skomra <skomra@gmail.com>
Date: Tue, 6 Mar 2018 10:48:35 -0800
Subject: HID: wacom: generic: add the "Report Valid" usage

Wacom Bluetooth reports contain multiple pen frames per report.
Each frame contains a flag indicating if the frame is valid.
Future Wacom devices with this type of report may contain HID
descriptors, add support for this usage to the generic codepath
of the Wacom driver.

Signed-off-by: Aaron Armstrong Skomra <skomra@gmail.com>
Reviewed-by: Ping Cheng <ping.cheng@wacom.com>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/wacom_wac.c | 16 +++++++++++++++-
 drivers/hid/wacom_wac.h |  3 ++-
 2 files changed, 17 insertions(+), 2 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 7a0a7f67e7ed..afa8c9f24a42 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1715,7 +1715,8 @@ int wacom_equivalent_usage(int usage)
 		    usage == WACOM_HID_WD_TOUCHSTRIP ||
 		    usage == WACOM_HID_WD_TOUCHSTRIP2 ||
 		    usage == WACOM_HID_WD_TOUCHRING ||
-		    usage == WACOM_HID_WD_TOUCHRINGSTATUS) {
+		    usage == WACOM_HID_WD_TOUCHRINGSTATUS ||
+		    usage == WACOM_HID_WD_REPORT_VALID) {
 			return usage;
 		}
 
@@ -2199,6 +2200,9 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field
 	struct input_dev *input = wacom_wac->pen_input;
 	unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
 
+	if (wacom_wac->is_invalid_bt_frame)
+		return;
+
 	switch (equivalent_usage) {
 	case HID_GD_Z:
 		/*
@@ -2295,6 +2299,9 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field
 				 features->offset_bottom);
 		features->offset_bottom = value;
 		return;
+	case WACOM_HID_WD_REPORT_VALID:
+		wacom_wac->is_invalid_bt_frame = !value;
+		return;
 	}
 
 	/* send pen events only when touch is up or forced out
@@ -2313,6 +2320,10 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field
 static void wacom_wac_pen_pre_report(struct hid_device *hdev,
 		struct hid_report *report)
 {
+	struct wacom *wacom = hid_get_drvdata(hdev);
+	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+
+	wacom_wac->is_invalid_bt_frame = false;
 	return;
 }
 
@@ -2325,6 +2336,9 @@ static void wacom_wac_pen_report(struct hid_device *hdev,
 	bool range = wacom_wac->hid_data.inrange_state;
 	bool sense = wacom_wac->hid_data.sense_state;
 
+	if (wacom_wac->is_invalid_bt_frame)
+		return;
+
 	if (!wacom_wac->tool[0] && range) { /* first in range */
 		/* Going into range select tool */
 		if (wacom_wac->hid_data.invert_state)
diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index 827d8fc4a3f2..295fd3718caa 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h
@@ -118,6 +118,7 @@
 #define WACOM_HID_WD_TOUCHSTRIP2        (WACOM_HID_UP_WACOMDIGITIZER | 0x0137)
 #define WACOM_HID_WD_TOUCHRING          (WACOM_HID_UP_WACOMDIGITIZER | 0x0138)
 #define WACOM_HID_WD_TOUCHRINGSTATUS    (WACOM_HID_UP_WACOMDIGITIZER | 0x0139)
+#define WACOM_HID_WD_REPORT_VALID       (WACOM_HID_UP_WACOMDIGITIZER | 0x01d0)
 #define WACOM_HID_WD_ACCELEROMETER_X    (WACOM_HID_UP_WACOMDIGITIZER | 0x0401)
 #define WACOM_HID_WD_ACCELEROMETER_Y    (WACOM_HID_UP_WACOMDIGITIZER | 0x0402)
 #define WACOM_HID_WD_ACCELEROMETER_Z    (WACOM_HID_UP_WACOMDIGITIZER | 0x0403)
@@ -353,7 +354,7 @@ struct wacom_wac {
 	bool has_mute_touch_switch;
 	bool has_mode_change;
 	bool is_direct_mode;
-
+	bool is_invalid_bt_frame;
 };
 
 #endif
-- 
cgit v1.2.3


From 7ba8fc0904e3cdfe5b02aaf6fa8fcdb76ad67b0f Mon Sep 17 00:00:00 2001
From: Jiri Kosina <jkosina@suse.cz>
Date: Wed, 7 Mar 2018 15:34:51 +0100
Subject: HID: wacom: wacom_wac_collection() is local to wacom_wac.c

... and therefore should be static.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/wacom_wac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers')

diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index afa8c9f24a42..6da16a879c9f 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2667,7 +2667,7 @@ static void wacom_report_events(struct hid_device *hdev,
 	}
 }
 
-int wacom_wac_collection(struct hid_device *hdev, struct hid_report *report,
+static int wacom_wac_collection(struct hid_device *hdev, struct hid_report *report,
 			 int collection_index, struct hid_field *field,
 			 int field_index)
 {
-- 
cgit v1.2.3


From 2ddc8e2d2b5902b376fee51585c8eed72b8836e7 Mon Sep 17 00:00:00 2001
From: Filip Alac <filipalac@gmail.com>
Date: Wed, 21 Mar 2018 17:28:25 +0100
Subject: HID: usbhid: extend the polling interval configuration to keyboards

For mouse and joystick devices user can change the polling interval
via usbhid.mousepoll and usbhid.jspoll.
Implement the same thing for keyboards, so user can
reduce(or increase) input latency this way.

This has been tested with a Cooler Master Devastator with
kbpoll=32, resulting in delay between events of 32 ms(values were taken
from evtest).

Signed-off-by: Filip Alac <filipalac@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 Documentation/admin-guide/kernel-parameters.txt |  3 +++
 drivers/hid/usbhid/hid-core.c                   | 12 +++++++++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

(limited to 'drivers')

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index b98048b56ada..e0d825206681 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4352,6 +4352,9 @@
 	usbhid.jspoll=
 			[USBHID] The interval which joysticks are to be polled at.
 
+	usbhid.kbpoll=
+			[USBHID] The interval which keyboards are to be polled at.
+
 	usb-storage.delay_use=
 			[UMS] The delay in seconds before a new device is
 			scanned for Logical Units (default 1).
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 77c50cdfff97..af0e0d061b15 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -56,6 +56,10 @@ static unsigned int hid_jspoll_interval;
 module_param_named(jspoll, hid_jspoll_interval, uint, 0644);
 MODULE_PARM_DESC(jspoll, "Polling interval of joysticks");
 
+static unsigned int hid_kbpoll_interval;
+module_param_named(kbpoll, hid_kbpoll_interval, uint, 0644);
+MODULE_PARM_DESC(kbpoll, "Polling interval of keyboards");
+
 static unsigned int ignoreled;
 module_param_named(ignoreled, ignoreled, uint, 0644);
 MODULE_PARM_DESC(ignoreled, "Autosuspend with active leds");
@@ -1094,7 +1098,9 @@ static int usbhid_start(struct hid_device *hid)
 				hid->name, endpoint->bInterval, interval);
 		}
 
-		/* Change the polling interval of mice and joysticks. */
+		/* Change the polling interval of mice, joysticks
+		 * and keyboards.
+		 */
 		switch (hid->collection->usage) {
 		case HID_GD_MOUSE:
 			if (hid_mousepoll_interval > 0)
@@ -1104,6 +1110,10 @@ static int usbhid_start(struct hid_device *hid)
 			if (hid_jspoll_interval > 0)
 				interval = hid_jspoll_interval;
 			break;
+		case HID_GD_KEYBOARD:
+			if (hid_kbpoll_interval > 0)
+				interval = hid_kbpoll_interval;
+			break;
 		}
 
 		ret = -ENOMEM;
-- 
cgit v1.2.3


From d9c57a7090ba5eaef716e0ab443d6bdd06278a68 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Tue, 20 Mar 2018 12:04:45 +0100
Subject: HID: multitouch: export a quirk for the button handling of touchpads

Instead of using the class name, we better have a specific quirk for it
so other classes can make use of it.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-multitouch.c | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 3b4739bde05d..504a95e0388f 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -74,6 +74,7 @@ MODULE_LICENSE("GPL");
 #define MT_QUIRK_TOUCH_SIZE_SCALING	BIT(15)
 #define MT_QUIRK_STICKY_FINGERS		BIT(16)
 #define MT_QUIRK_ASUS_CUSTOM_UP		BIT(17)
+#define MT_QUIRK_WIN8_PTP_BUTTONS	BIT(18)
 
 #define MT_INPUTMODE_TOUCHSCREEN	0x02
 #define MT_INPUTMODE_TOUCHPAD		0x03
@@ -241,7 +242,8 @@ static struct mt_class mt_classes[] = {
 			MT_QUIRK_IGNORE_DUPLICATES |
 			MT_QUIRK_HOVERING |
 			MT_QUIRK_CONTACT_CNT_ACCURATE |
-			MT_QUIRK_STICKY_FINGERS },
+			MT_QUIRK_STICKY_FINGERS |
+			MT_QUIRK_WIN8_PTP_BUTTONS },
 	{ .name = MT_CLS_EXPORT_ALL_INPUTS,
 		.quirks = MT_QUIRK_ALWAYS_VALID |
 			MT_QUIRK_CONTACT_CNT_ACCURATE,
@@ -250,7 +252,8 @@ static struct mt_class mt_classes[] = {
 		.quirks = MT_QUIRK_ALWAYS_VALID |
 			MT_QUIRK_IGNORE_DUPLICATES |
 			MT_QUIRK_HOVERING |
-			MT_QUIRK_CONTACT_CNT_ACCURATE,
+			MT_QUIRK_CONTACT_CNT_ACCURATE |
+			MT_QUIRK_WIN8_PTP_BUTTONS,
 		.export_all_inputs = true },
 
 	/*
@@ -659,8 +662,7 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 		 * MS PTP spec says that external buttons left and right have
 		 * usages 2 and 3.
 		 */
-		if ((cls->name == MT_CLS_WIN_8 ||
-			cls->name == MT_CLS_WIN_8_DUAL) &&
+		if ((cls->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) &&
 		    field->application == HID_DG_TOUCHPAD &&
 		    (usage->hid & HID_USAGE) > 1)
 			code--;
@@ -772,9 +774,7 @@ static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
  */
 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
 {
-	__s32 cls = td->mtclass.name;
-
-	if (cls == MT_CLS_WIN_8 || cls == MT_CLS_WIN_8_DUAL)
+	if (td->mtclass.quirks & MT_QUIRK_WIN8_PTP_BUTTONS)
 		input_event(input, EV_KEY, BTN_LEFT, td->left_button_state);
 
 	input_mt_sync_frame(input);
@@ -826,7 +826,6 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
 				bool first_packet)
 {
 	struct mt_device *td = hid_get_drvdata(hid);
-	__s32 cls = td->mtclass.name;
 	__s32 quirks = td->mtclass.quirks;
 	struct input_dev *input = field->hidinput->input;
 
@@ -904,7 +903,7 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
 			 * non finger/touch events in the first_packet of
 			 * a (possible) multi-packet frame.
 			 */
-			if ((cls == MT_CLS_WIN_8 || cls == MT_CLS_WIN_8_DUAL) &&
+			if ((quirks & MT_QUIRK_WIN8_PTP_BUTTONS) &&
 			    !first_packet)
 				return;
 
@@ -915,7 +914,7 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
 			 * BTN_LEFT if either is pressed, so we or all values
 			 * together and report the result in mt_sync_frame().
 			 */
-			if ((cls == MT_CLS_WIN_8 || cls == MT_CLS_WIN_8_DUAL) &&
+			if ((quirks & MT_QUIRK_WIN8_PTP_BUTTONS) &&
 			    usage->type == EV_KEY && usage->code == BTN_LEFT) {
 				td->left_button_state |= value;
 				return;
@@ -939,7 +938,6 @@ static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
 static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
 {
 	struct mt_device *td = hid_get_drvdata(hid);
-	__s32 cls = td->mtclass.name;
 	struct hid_field *field;
 	bool first_packet;
 	unsigned count;
@@ -968,7 +966,7 @@ static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
 		 * of a possible multi-packet frame be checking that the
 		 * timestamp has changed.
 		 */
-		if ((cls == MT_CLS_WIN_8 || cls == MT_CLS_WIN_8_DUAL) &&
+		if ((td->mtclass.quirks & MT_QUIRK_WIN8_PTP_BUTTONS) &&
 		    td->num_received == 0 && td->prev_scantime != scantime)
 			td->num_expected = value;
 		/* A non 0 contact count always indicates a first packet */
-- 
cgit v1.2.3


From 843e475f944a531210c71943efe09fca346a9a03 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Tue, 20 Mar 2018 12:04:46 +0100
Subject: HID: multitouch: remove dead zones of Razer Blade Stealth

The Razer Blade Stealth detects palms too aggressively and this creates
a dead zone around the touchpad. Users like being able to use their
entire touchpad, so we should probably not filter out the "palm" events
from the device and report them as regular touches, leaving the palm
detection up to the upper stack

Link: https://bugs.freedesktop.org/show_bug.cgi?id=105409

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-multitouch.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'drivers')

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 504a95e0388f..bc724e6b75c9 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -184,6 +184,7 @@ static void mt_post_parse(struct mt_device *td);
 #define MT_CLS_ASUS				0x010b
 #define MT_CLS_VTL				0x0110
 #define MT_CLS_GOOGLE				0x0111
+#define MT_CLS_RAZER_BLADE_STEALTH		0x0112
 
 #define MT_DEFAULT_MAXCONTACT	10
 #define MT_MAX_MAXCONTACT	250
@@ -326,6 +327,13 @@ static struct mt_class mt_classes[] = {
 			MT_QUIRK_SLOT_IS_CONTACTID |
 			MT_QUIRK_HOVERING
 	},
+	{ .name = MT_CLS_RAZER_BLADE_STEALTH,
+		.quirks = MT_QUIRK_ALWAYS_VALID |
+			MT_QUIRK_IGNORE_DUPLICATES |
+			MT_QUIRK_HOVERING |
+			MT_QUIRK_CONTACT_CNT_ACCURATE |
+			MT_QUIRK_WIN8_PTP_BUTTONS,
+	},
 	{ }
 };
 
@@ -1791,6 +1799,11 @@ static const struct hid_device_id mt_devices[] = {
 		MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
 			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
 
+	/* Razer touchpads */
+	{ .driver_data = MT_CLS_RAZER_BLADE_STEALTH,
+		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
+			USB_VENDOR_ID_SYNAPTICS, 0x8323) },
+
 	/* Stantum panels */
 	{ .driver_data = MT_CLS_CONFIDENCE,
 		MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
-- 
cgit v1.2.3


From 39335d1cbb8fb3260ac5f18fbcc45beb690e5ebd Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Tue, 20 Mar 2018 12:04:49 +0100
Subject: HID: core: remove the need for HID_QUIRK_NO_EMPTY_INPUT

There is no real point of registering an empty input node.
This should be default, but given some drivers need the blank input
node to set it up during input_configured, we need to postpone
the check for hidinput_has_been_populated().

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-asus.c       |  3 +--
 drivers/hid/hid-input.c      | 10 +++++-----
 drivers/hid/hid-multitouch.c |  1 -
 drivers/hid/hid-uclogic.c    |  1 -
 include/linux/hid.h          |  2 +-
 5 files changed, 7 insertions(+), 10 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index 88b9703318e4..cc738ebf93ac 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -644,8 +644,7 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		 * 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;
+		hdev->quirks |= HID_QUIRK_MULTI_INPUT;
 		drvdata->tp = &asus_t100chi_tp;
 	}
 
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 04d01b57d94c..b237b5590227 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1656,16 +1656,16 @@ int hidinput_connect(struct hid_device *hid, unsigned int force)
 	}
 
 	list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
-		if ((hid->quirks & HID_QUIRK_NO_EMPTY_INPUT) &&
-		    !hidinput_has_been_populated(hidinput)) {
+		if (drv->input_configured &&
+		    drv->input_configured(hid, hidinput))
+			goto out_unwind;
+
+		if (!hidinput_has_been_populated(hidinput)) {
 			/* no need to register an input device not populated */
 			hidinput_cleanup_hidinput(hid, hidinput);
 			continue;
 		}
 
-		if (drv->input_configured &&
-		    drv->input_configured(hid, hidinput))
-			goto out_unwind;
 		if (input_register_device(hidinput->input))
 			goto out_unwind;
 		hidinput->registered = true;
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index bc724e6b75c9..c4d89830cd1f 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1469,7 +1469,6 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	 * device.
 	 */
 	hdev->quirks |= HID_QUIRK_MULTI_INPUT;
-	hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
 
 	/*
 	 * Some multitouch screens do not like to be polled for input
diff --git a/drivers/hid/hid-uclogic.c b/drivers/hid/hid-uclogic.c
index e3e6e5c893cc..56b196d60041 100644
--- a/drivers/hid/hid-uclogic.c
+++ b/drivers/hid/hid-uclogic.c
@@ -946,7 +946,6 @@ static int uclogic_probe(struct hid_device *hdev,
 	 * than the pen, so use QUIRK_MULTI_INPUT for all tablets.
 	 */
 	hdev->quirks |= HID_QUIRK_MULTI_INPUT;
-	hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
 
 	/* Allocate and assign driver data */
 	drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
diff --git a/include/linux/hid.h b/include/linux/hid.h
index bc92005e5f08..b0db16fa7093 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -338,7 +338,7 @@ struct hid_item {
 #define HID_QUIRK_BADPAD			BIT(5)
 #define HID_QUIRK_MULTI_INPUT			BIT(6)
 #define HID_QUIRK_HIDINPUT_FORCE		BIT(7)
-#define HID_QUIRK_NO_EMPTY_INPUT		BIT(8)
+/* BIT(8) reserved for backward compatibility, was HID_QUIRK_NO_EMPTY_INPUT */
 /* BIT(9) reserved for backward compatibility, was NO_INIT_INPUT_REPORTS */
 #define HID_QUIRK_ALWAYS_POLL			BIT(10)
 #define HID_QUIRK_SKIP_OUTPUT_REPORTS		BIT(16)
-- 
cgit v1.2.3


From adaabbf48fdf0ef31997e4054a88aaba16ad8b76 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Tue, 20 Mar 2018 12:04:50 +0100
Subject: HID: multitouch: do not set HID_QUIRK_NO_INIT_REPORTS

It is set by default now, so there is no point setting it in the driver

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-multitouch.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index c4d89830cd1f..f05d372ba71e 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -380,7 +380,6 @@ static const struct attribute_group mt_attribute_group = {
 
 static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
 {
-	struct mt_device *td = hid_get_drvdata(hdev);
 	int ret, size = hid_report_len(report);
 	u8 *buf;
 
@@ -388,7 +387,7 @@ static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
 	 * Do not fetch the feature report if the device has been explicitly
 	 * marked as non-capable.
 	 */
-	if (td->initial_quirks & HID_QUIRK_NO_INIT_REPORTS)
+	if (hdev->quirks & HID_QUIRK_NO_INIT_REPORTS)
 		return;
 
 	buf = hid_alloc_report_buf(report, GFP_KERNEL);
@@ -1470,21 +1469,6 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	 */
 	hdev->quirks |= HID_QUIRK_MULTI_INPUT;
 
-	/*
-	 * Some multitouch screens do not like to be polled for input
-	 * reports. Fortunately, the Win8 spec says that all touches
-	 * should be sent during each report, making the initialization
-	 * of input reports unnecessary. For Win7 devices, well, let's hope
-	 * they will still be happy (this is only be a problem if a touch
-	 * was already there while probing the device).
-	 *
-	 * In addition some touchpads do not behave well if we read
-	 * all feature reports from them. Instead we prevent
-	 * initial report fetching and then selectively fetch each
-	 * report we are interested in.
-	 */
-	hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
-
 	timer_setup(&td->release_timer, mt_expired_timeout, 0);
 
 	ret = hid_parse(hdev);
-- 
cgit v1.2.3


From 2904e68ff2ceb6f18f2f130749e6862c90725ab6 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Tue, 20 Mar 2018 12:04:51 +0100
Subject: HID: core: reset the quirks before calling probe again

Given that now the quirk handling is done in hid-quirk.c, we can actually
reset the quirks before calling .probe(), so that the drivers do not need
to keep track of initial quirks.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-core.c       | 2 ++
 drivers/hid/hid-multitouch.c | 7 -------
 2 files changed, 2 insertions(+), 7 deletions(-)

(limited to 'drivers')

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index c2560aae5542..fdb8b6ed6d4c 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1966,6 +1966,8 @@ static int hid_device_probe(struct device *dev)
 			}
 		}
 
+		/* reset the quirks that has been previously set */
+		hdev->quirks = hid_lookup_quirk(hdev);
 		hdev->driver = hdrv;
 		if (hdrv->probe) {
 			ret = hdrv->probe(hdev, id);
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index f05d372ba71e..6ae2d14146b3 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -127,7 +127,6 @@ struct mt_device {
 	int left_button_state;	/* left button state */
 	unsigned last_slot_field;	/* the last field of a slot */
 	unsigned mt_report_id;	/* the report ID of the multitouch device */
-	unsigned long initial_quirks;	/* initial quirks state */
 	__s16 inputmode;	/* InputMode HID feature, -1 if non-existent */
 	__s16 inputmode_index;	/* InputMode HID feature index in the report */
 	__s16 maxcontact_report_id;	/* Maximum Contact Number HID feature,
@@ -1452,11 +1451,6 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
 		td->serial_maybe = true;
 
-	/*
-	 * Store the initial quirk state
-	 */
-	td->initial_quirks = hdev->quirks;
-
 	/* This allows the driver to correctly support devices
 	 * that emit events over several HID messages.
 	 */
@@ -1526,7 +1520,6 @@ static void mt_remove(struct hid_device *hdev)
 
 	sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
 	hid_hw_stop(hdev);
-	hdev->quirks = td->initial_quirks;
 }
 
 /*
-- 
cgit v1.2.3


From bc774b8c110f7d90d13257b95b5a22f5bb7fd71b Mon Sep 17 00:00:00 2001
From: Wei-Ning Huang <wnhuang@chromium.org>
Date: Thu, 15 Mar 2018 09:28:25 +0800
Subject: HID: google: add google hammer HID driver

Add Google hammer HID driver. This driver allow us to control hammer
keyboard backlight and support future features.

Signed-off-by: Wei-Ning Huang <wnhuang@google.com>
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/Kconfig             |   6 ++
 drivers/hid/Makefile            |   1 +
 drivers/hid/hid-google-hammer.c | 124 ++++++++++++++++++++++++++++++++++++++++
 drivers/hid/hid-ids.h           |   3 +
 4 files changed, 134 insertions(+)
 create mode 100644 drivers/hid/hid-google-hammer.c

(limited to 'drivers')

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 19c499f5623d..a18e06b81165 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -331,6 +331,12 @@ config HOLTEK_FF
 	  Say Y here if you have a Holtek On Line Grip based game controller
 	  and want to have force feedback support for it.
 
+config HID_GOOGLE_HAMMER
+	tristate "Google Hammer Keyboard"
+	depends on USB_HID && LEDS_CLASS
+	---help---
+	Say Y here if you have a Google Hammer device.
+
 config HID_GT683R
 	tristate "MSI GT68xR LED support"
 	depends on LEDS_CLASS && USB_HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index eb13b9e92d85..4e9b57a44e96 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -44,6 +44,7 @@ obj-$(CONFIG_HID_ELO)		+= hid-elo.o
 obj-$(CONFIG_HID_EZKEY)		+= hid-ezkey.o
 obj-$(CONFIG_HID_GEMBIRD)	+= hid-gembird.o
 obj-$(CONFIG_HID_GFRM)		+= hid-gfrm.o
+obj-$(CONFIG_HID_GOOGLE_HAMMER)	+= hid-google-hammer.o
 obj-$(CONFIG_HID_GT683R)	+= hid-gt683r.o
 obj-$(CONFIG_HID_GYRATION)	+= hid-gyration.o
 obj-$(CONFIG_HID_HOLTEK)	+= hid-holtek-kbd.o
diff --git a/drivers/hid/hid-google-hammer.c b/drivers/hid/hid-google-hammer.c
new file mode 100644
index 000000000000..6486469ce0f6
--- /dev/null
+++ b/drivers/hid/hid-google-hammer.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *  HID driver for Google Hammer device.
+ *
+ *  Copyright (c) 2017 Google Inc.
+ *  Author: Wei-Ning Huang <wnhuang@google.com>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/hid.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+#define MAX_BRIGHTNESS 100
+
+/* HID usage for keyboard backlight (Alphanumeric display brightness) */
+#define HID_AD_BRIGHTNESS 0x00140046
+
+struct hammer_kbd_leds {
+	struct led_classdev cdev;
+	struct hid_device *hdev;
+	u8 buf[2] ____cacheline_aligned;
+};
+
+static int hammer_kbd_brightness_set_blocking(struct led_classdev *cdev,
+		enum led_brightness br)
+{
+	struct hammer_kbd_leds *led = container_of(cdev,
+						   struct hammer_kbd_leds,
+						   cdev);
+	int ret;
+
+	led->buf[0] = 0;
+	led->buf[1] = br;
+
+	ret = hid_hw_output_report(led->hdev, led->buf, sizeof(led->buf));
+	if (ret == -ENOSYS)
+		ret = hid_hw_raw_request(led->hdev, 0, led->buf,
+					 sizeof(led->buf),
+					 HID_OUTPUT_REPORT,
+					 HID_REQ_SET_REPORT);
+	if (ret < 0)
+		hid_err(led->hdev, "failed to set keyboard backlight: %d\n",
+			ret);
+	return ret;
+}
+
+static int hammer_register_leds(struct hid_device *hdev)
+{
+	struct hammer_kbd_leds *kbd_backlight;
+
+	kbd_backlight = devm_kzalloc(&hdev->dev,
+				     sizeof(*kbd_backlight),
+				     GFP_KERNEL);
+	if (!kbd_backlight)
+		return -ENOMEM;
+
+	kbd_backlight->hdev = hdev;
+	kbd_backlight->cdev.name = "hammer::kbd_backlight";
+	kbd_backlight->cdev.max_brightness = MAX_BRIGHTNESS;
+	kbd_backlight->cdev.brightness_set_blocking =
+		hammer_kbd_brightness_set_blocking;
+	kbd_backlight->cdev.flags = LED_HW_PLUGGABLE;
+
+	/* Set backlight to 0% initially. */
+	hammer_kbd_brightness_set_blocking(&kbd_backlight->cdev, 0);
+
+	return devm_led_classdev_register(&hdev->dev, &kbd_backlight->cdev);
+}
+
+static int hammer_input_configured(struct hid_device *hdev,
+				   struct hid_input *hi)
+{
+	struct list_head *report_list =
+		&hdev->report_enum[HID_OUTPUT_REPORT].report_list;
+	struct hid_report *report;
+
+	if (list_empty(report_list))
+		return 0;
+
+	report = list_first_entry(report_list, struct hid_report, list);
+
+	if (report->maxfield == 1 &&
+	    report->field[0]->application == HID_GD_KEYBOARD &&
+	    report->field[0]->maxusage == 1 &&
+	    report->field[0]->usage[0].hid == HID_AD_BRIGHTNESS) {
+		int err = hammer_register_leds(hdev);
+
+		if (err)
+			hid_warn(hdev,
+				"Failed to register keyboard backlight: %d\n",
+				err);
+	}
+
+	return 0;
+}
+
+static const struct hid_device_id hammer_devices[] = {
+	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
+		     USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_HAMMER) },
+	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
+		     USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_STAFF) },
+	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
+		     USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_WAND) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, hammer_devices);
+
+static struct hid_driver hammer_driver = {
+	.name = "hammer",
+	.id_table = hammer_devices,
+	.input_configured = hammer_input_configured,
+};
+module_hid_driver(hammer_driver);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 43ddcdfbd0da..360c2893bb2d 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -445,7 +445,10 @@
 #define USB_DEVICE_ID_GOODTOUCH_000f	0x000f
 
 #define USB_VENDOR_ID_GOOGLE		0x18d1
+#define USB_DEVICE_ID_GOOGLE_HAMMER	0x5022
 #define USB_DEVICE_ID_GOOGLE_TOUCH_ROSE	0x5028
+#define USB_DEVICE_ID_GOOGLE_STAFF	0x502b
+#define USB_DEVICE_ID_GOOGLE_WAND	0x502d
 
 #define USB_VENDOR_ID_GOTOP		0x08f2
 #define USB_DEVICE_ID_SUPER_Q2		0x007f
-- 
cgit v1.2.3


From 7d3d88401fb75081e731d62c1c79584413525aa6 Mon Sep 17 00:00:00 2001
From: Haridhar Kalvala <haridhar.kalvala@intel.com>
Date: Wed, 28 Mar 2018 14:16:10 +0800
Subject: HID: google: Enable PM Full On mode when adjusting backlight

hammer LED backlight brightness is not getting set when USB
device is in suspend state.

This patch fixes the issue by requesting USB HID device to be
in FULLON mode, so that sending hardware output report and
hardware raw request won't fail to set brightness, and set
device back to NORMAL mode once this call returns.

Signed-off-by: Haridhar Kalvala <haridhar.kalvala@intel.com>
Reviewed-by: Dmitry Torokhov <dtor@chromium.org>
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-google-hammer.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'drivers')

diff --git a/drivers/hid/hid-google-hammer.c b/drivers/hid/hid-google-hammer.c
index 6486469ce0f6..7b8e17b03cb8 100644
--- a/drivers/hid/hid-google-hammer.c
+++ b/drivers/hid/hid-google-hammer.c
@@ -41,6 +41,16 @@ static int hammer_kbd_brightness_set_blocking(struct led_classdev *cdev,
 	led->buf[0] = 0;
 	led->buf[1] = br;
 
+	/*
+	 * Request USB HID device to be in Full On mode, so that sending
+	 * hardware output report and hardware raw request won't fail.
+	 */
+	ret = hid_hw_power(led->hdev, PM_HINT_FULLON);
+	if (ret < 0) {
+		hid_err(led->hdev, "failed: device not resumed %d\n", ret);
+		return ret;
+	}
+
 	ret = hid_hw_output_report(led->hdev, led->buf, sizeof(led->buf));
 	if (ret == -ENOSYS)
 		ret = hid_hw_raw_request(led->hdev, 0, led->buf,
@@ -50,6 +60,10 @@ static int hammer_kbd_brightness_set_blocking(struct led_classdev *cdev,
 	if (ret < 0)
 		hid_err(led->hdev, "failed to set keyboard backlight: %d\n",
 			ret);
+
+	/* Request USB HID device back to Normal Mode. */
+	hid_hw_power(led->hdev, PM_HINT_NORMAL);
+
 	return ret;
 }
 
-- 
cgit v1.2.3