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HID: multitouch: Support Asus T304UA media keys
The Asus T304UA convertible sports a magnetic detachable keyboard with touchpad, which is connected over USB. Most of the keyboard hotkeys are exposed through the same USB interface as the touchpad, defined in the report descriptor as follows: 0x06, 0x31, 0xFF, // Usage Page (Vendor Defined 0xFF31) 0x09, 0x76, // Usage (0x76) 0xA1, 0x01, // Collection (Application) 0x05, 0xFF, // Usage Page (Reserved 0xFF) 0x85, 0x5A, // Report ID (90) 0x19, 0x00, // Usage Minimum (0x00) 0x2A, 0xFF, 0x00, // Usage Maximum (0xFF) 0x15, 0x00, // Logical Minimum (0) 0x26, 0xFF, 0x00, // Logical Maximum (255) 0x75, 0x08, // Report Size (8) 0x95, 0x0F, // Report Count (15) 0xB1, 0x02, // Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile) 0x05, 0xFF, // Usage Page (Reserved 0xFF) 0x85, 0x5A, // Report ID (90) 0x19, 0x00, // Usage Minimum (0x00) 0x2A, 0xFF, 0x00, // Usage Maximum (0xFF) 0x15, 0x00, // Logical Minimum (0) 0x26, 0xFF, 0x00, // Logical Maximum (255) 0x75, 0x08, // Report Size (8) 0x95, 0x02, // Report Count (2) 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) 0xC0, // End Collection This UsagePage is declared as a variable, but we need to treat it as an array to be able to map each Usage we care about to its corresponding input key. Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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3 changed files with 46 additions and 1 deletions
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@ -176,6 +176,7 @@
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#define USB_DEVICE_ID_ASUSTEK_LCM 0x1726
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#define USB_DEVICE_ID_ASUSTEK_LCM2 0x175b
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#define USB_DEVICE_ID_ASUSTEK_T100_KEYBOARD 0x17e0
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#define USB_DEVICE_ID_ASUSTEK_T304_KEYBOARD 0x184a
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#define USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD 0x8585
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#define USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD 0x0101
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#define USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1 0x1854
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@ -72,6 +72,7 @@ MODULE_LICENSE("GPL");
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#define MT_QUIRK_FIX_CONST_CONTACT_ID BIT(14)
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#define MT_QUIRK_TOUCH_SIZE_SCALING BIT(15)
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#define MT_QUIRK_STICKY_FINGERS BIT(16)
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#define MT_QUIRK_ASUS_CUSTOM_UP BIT(17)
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#define MT_INPUTMODE_TOUCHSCREEN 0x02
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#define MT_INPUTMODE_TOUCHPAD 0x03
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@ -169,6 +170,7 @@ static void mt_post_parse(struct mt_device *td);
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#define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
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#define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
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#define MT_CLS_LG 0x010a
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#define MT_CLS_ASUS 0x010b
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#define MT_CLS_VTL 0x0110
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#define MT_CLS_GOOGLE 0x0111
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@ -290,6 +292,10 @@ static struct mt_class mt_classes[] = {
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MT_QUIRK_IGNORE_DUPLICATES |
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MT_QUIRK_HOVERING |
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MT_QUIRK_CONTACT_CNT_ACCURATE },
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{ .name = MT_CLS_ASUS,
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.quirks = MT_QUIRK_ALWAYS_VALID |
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MT_QUIRK_CONTACT_CNT_ACCURATE |
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MT_QUIRK_ASUS_CUSTOM_UP },
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{ .name = MT_CLS_VTL,
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.quirks = MT_QUIRK_ALWAYS_VALID |
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MT_QUIRK_CONTACT_CNT_ACCURATE |
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@ -905,6 +911,8 @@ static int mt_touch_input_configured(struct hid_device *hdev,
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return 0;
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}
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#define mt_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \
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max, EV_KEY, (c))
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static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
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struct hid_field *field, struct hid_usage *usage,
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unsigned long **bit, int *max)
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@ -923,9 +931,34 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
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field->application != HID_DG_TOUCHPAD &&
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field->application != HID_GD_KEYBOARD &&
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field->application != HID_CP_CONSUMER_CONTROL &&
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field->application != HID_GD_WIRELESS_RADIO_CTLS)
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field->application != HID_GD_WIRELESS_RADIO_CTLS &&
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!(field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS &&
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td->mtclass.quirks & MT_QUIRK_ASUS_CUSTOM_UP))
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return -1;
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/*
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* Some Asus keyboard+touchpad devices have the hotkeys defined in the
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* touchpad report descriptor. We need to treat these as an array to
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* map usages to input keys.
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*/
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if (field->application == 0xff310076 &&
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td->mtclass.quirks & MT_QUIRK_ASUS_CUSTOM_UP &&
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(usage->hid & HID_USAGE_PAGE) == HID_UP_CUSTOM) {
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set_bit(EV_REP, hi->input->evbit);
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if (field->flags & HID_MAIN_ITEM_VARIABLE)
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field->flags &= ~HID_MAIN_ITEM_VARIABLE;
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switch (usage->hid & HID_USAGE) {
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case 0x10: mt_map_key_clear(KEY_BRIGHTNESSDOWN); break;
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case 0x20: mt_map_key_clear(KEY_BRIGHTNESSUP); break;
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case 0x35: mt_map_key_clear(KEY_DISPLAY_OFF); break;
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case 0x6b: mt_map_key_clear(KEY_F21); break;
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case 0x6c: mt_map_key_clear(KEY_SLEEP); break;
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default:
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return -1;
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}
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return 1;
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}
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/*
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* some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
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* for the stylus.
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@ -1137,6 +1170,9 @@ static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
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case HID_GD_WIRELESS_RADIO_CTLS:
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suffix = "Wireless Radio Control";
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break;
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case HID_VD_ASUS_CUSTOM_MEDIA_KEYS:
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suffix = "Custom Media Keys";
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break;
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default:
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suffix = "UNKNOWN";
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break;
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@ -1388,6 +1424,12 @@ static const struct hid_device_id mt_devices[] = {
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MT_USB_DEVICE(USB_VENDOR_ID_ANTON,
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USB_DEVICE_ID_ANTON_TOUCH_PAD) },
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/* Asus T304UA */
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{ .driver_data = MT_CLS_ASUS,
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HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
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USB_VENDOR_ID_ASUSTEK,
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USB_DEVICE_ID_ASUSTEK_T304_KEYBOARD) },
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/* Atmel panels */
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{ .driver_data = MT_CLS_SERIAL,
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MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
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@ -173,6 +173,7 @@ struct hid_item {
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#define HID_UP_LOGIVENDOR3 0xff430000
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#define HID_UP_LNVENDOR 0xffa00000
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#define HID_UP_SENSOR 0x00200000
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#define HID_UP_ASUSVENDOR 0xff310000
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#define HID_USAGE 0x0000ffff
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@ -292,6 +293,7 @@ struct hid_item {
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#define HID_DG_BARRELSWITCH2 0x000d005a
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#define HID_DG_TOOLSERIALNUMBER 0x000d005b
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#define HID_VD_ASUS_CUSTOM_MEDIA_KEYS 0xff310076
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/*
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* HID report types --- Ouch! HID spec says 1 2 3!
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*/
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