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Aditya Garg
84 lines
2.8 KiB
Diff
84 lines
2.8 KiB
Diff
From 23d901ab6ad4751cb05cb8724da1f6199a97ac5d Mon Sep 17 00:00:00 2001
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From: Kerem Karabay <kekrby@gmail.com>
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Date: Tue, 27 May 2025 22:13:17 +0530
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Subject: [PATCH 5/5] HID: multitouch: add device ID for Apple Touch Bar
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This patch adds the device ID of Apple Touch Bar found on x86 MacBook Pros
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to the hid-multitouch driver.
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Note that this is device ID is for T2 Macs. Testing on T1 Macs would be
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appreciated.
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Signed-off-by: Kerem Karabay <kekrby@gmail.com>
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Co-developed-by: Aditya Garg <gargaditya08@live.com>
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Signed-off-by: Aditya Garg <gargaditya08@live.com>
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---
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drivers/hid/Kconfig | 1 +
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drivers/hid/hid-multitouch.c | 17 +++++++++++++++++
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2 files changed, 18 insertions(+)
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diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
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index a50325270..403f4517f 100644
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--- a/drivers/hid/Kconfig
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+++ b/drivers/hid/Kconfig
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@@ -769,6 +769,7 @@ config HID_MULTITOUCH
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Say Y here if you have one of the following devices:
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- 3M PCT touch screens
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- ActionStar dual touch panels
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+ - Apple Touch Bar on x86 MacBook Pros
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- Atmel panels
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- Cando dual touch panels
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- Chunghwa panels
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diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
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index 81c02138f..a1b251ea6 100644
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--- a/drivers/hid/hid-multitouch.c
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+++ b/drivers/hid/hid-multitouch.c
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@@ -221,6 +221,7 @@ static void mt_post_parse(struct mt_device *td, struct mt_application *app);
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#define MT_CLS_GOOGLE 0x0111
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#define MT_CLS_RAZER_BLADE_STEALTH 0x0112
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#define MT_CLS_SMART_TECH 0x0113
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+#define MT_CLS_APPLE_TOUCHBAR 0x0114
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#define MT_CLS_SIS 0x0457
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#define MT_DEFAULT_MAXCONTACT 10
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@@ -406,6 +407,12 @@ static const struct mt_class mt_classes[] = {
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MT_QUIRK_CONTACT_CNT_ACCURATE |
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MT_QUIRK_SEPARATE_APP_REPORT,
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},
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+ { .name = MT_CLS_APPLE_TOUCHBAR,
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+ .quirks = MT_QUIRK_HOVERING |
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+ MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE |
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+ MT_QUIRK_APPLE_TOUCHBAR,
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+ .maxcontacts = 11,
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+ },
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{ .name = MT_CLS_SIS,
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.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
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MT_QUIRK_ALWAYS_VALID |
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@@ -1858,6 +1865,11 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
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if (ret != 0)
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return ret;
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+ if (mtclass->name == MT_CLS_APPLE_TOUCHBAR &&
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+ !hid_find_field(hdev, HID_INPUT_REPORT,
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+ HID_DG_TOUCHPAD, HID_DG_TRANSDUCER_INDEX))
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+ return -ENODEV;
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+
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if (mtclass->quirks & MT_QUIRK_FIX_CONST_CONTACT_ID)
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mt_fix_const_fields(hdev, HID_DG_CONTACTID);
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@@ -2339,6 +2351,11 @@ static const struct hid_device_id mt_devices[] = {
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MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
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USB_DEVICE_ID_XIROKU_CSR2) },
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+ /* Apple Touch Bar */
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+ { .driver_data = MT_CLS_APPLE_TOUCHBAR,
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+ HID_USB_DEVICE(USB_VENDOR_ID_APPLE,
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+ USB_DEVICE_ID_APPLE_TOUCHBAR_DISPLAY) },
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+
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/* Google MT devices */
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{ .driver_data = MT_CLS_GOOGLE,
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HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_GOOGLE,
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--
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2.49.0
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