From 57573c541be6c7bca5c27427a5f908d8a22d0b00 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Thu, 25 May 2017 16:49:21 +0200 Subject: [PATCH] HID: asus: Add support for T100 touchpad Add support for the Asus T100 touchpad in multi-touch mode (rather then mouse emulation mode). It turns out that the Asus T100 touchpad is identical to the already supported i2c-hid Asus touchpads, so adding support for it was easy. The only significant difference is that the reported x-coordinates range on the T100 touchpad is somewhat lower then the range on the already supported touchpads. Signed-off-by: Hans de Goede Reviewed-by: Benjamin Tissoires Signed-off-by: Jiri Kosina --- drivers/hid/hid-asus.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c index a4a3c38bc145..7cdb218b7e43 100644 --- a/drivers/hid/hid-asus.c +++ b/drivers/hid/hid-asus.c @@ -29,6 +29,7 @@ #include #include #include +#include /* For to_usb_interface for T100 touchpad intf check */ #include "hid-ids.h" @@ -38,6 +39,8 @@ MODULE_AUTHOR("Victor Vlasenko "); MODULE_AUTHOR("Frederik Wenigwieser "); MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad"); +#define T100_TPAD_INTF 2 + #define FEATURE_REPORT_ID 0x0d #define INPUT_REPORT_ID 0x5d #define FEATURE_KBD_REPORT_ID 0x5a @@ -50,6 +53,7 @@ MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad"); #define MAX_CONTACTS 5 #define MAX_X 2794 +#define MAX_X_T100 2240 #define MAX_Y 1758 #define MAX_TOUCH_MAJOR 8 #define MAX_PRESSURE 128 @@ -70,11 +74,12 @@ MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad"); #define QUIRK_NO_CONSUMER_USAGES BIT(4) #define QUIRK_USE_KBD_BACKLIGHT BIT(5) #define QUIRK_T100_KEYBOARD BIT(6) +#define QUIRK_T100_TOUCHPAD BIT(7) #define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \ QUIRK_NO_INIT_REPORTS | \ QUIRK_NO_CONSUMER_USAGES) -#define I2C_TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \ +#define TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \ QUIRK_SKIP_INPUT_MAPPING | \ QUIRK_IS_MULTITOUCH) @@ -337,7 +342,10 @@ static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi) if (drvdata->quirks & QUIRK_IS_MULTITOUCH) { int ret; - input_set_abs_params(input, ABS_MT_POSITION_X, 0, MAX_X, 0, 0); + if (drvdata->quirks & QUIRK_T100_TOUCHPAD) + input_set_abs_params(input, ABS_MT_POSITION_X, 0, MAX_X_T100, 0, 0); + else + input_set_abs_params(input, ABS_MT_POSITION_X, 0, MAX_X, 0, 0); input_set_abs_params(input, ABS_MT_POSITION_Y, 0, MAX_Y, 0, 0); input_set_abs_params(input, ABS_TOOL_WIDTH, 0, MAX_TOUCH_MAJOR, 0, 0); input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, MAX_TOUCH_MAJOR, 0, 0); @@ -517,6 +525,13 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id) drvdata->quirks = id->driver_data; + if (drvdata->quirks & QUIRK_T100_KEYBOARD) { + struct usb_interface *intf = to_usb_interface(hdev->dev.parent); + + if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) + drvdata->quirks = TOUCHPAD_QUIRKS | QUIRK_T100_TOUCHPAD; + } + if (drvdata->quirks & QUIRK_NO_INIT_REPORTS) hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; @@ -591,7 +606,7 @@ static const struct hid_device_id asus_devices[] = { { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD), I2C_KEYBOARD_QUIRKS}, { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, - USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), I2C_TOUCHPAD_QUIRKS }, + USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), TOUCHPAD_QUIRKS }, { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1) }, { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,