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gjdwebserver-overlay/sys-kernel/pinephone-sources/files/PATCH-1-4-HID-magicmouse-add-Apple-Magic-Mouse-2-support.patch

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From: John Chen <johnchen902@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Rohit Pidaparthi <rohitpid@gmail.com>,
RicardoEPRodrigues <ricardo.e.p.rodrigues@gmail.com>,
Jiri Kosina <jikos@kernel.org>,
Benjamin Tissoires <benjamin.tissoires@redhat.com>,
John Chen <johnchen902@gmail.com>
Subject: [PATCH 1/4] HID: magicmouse: add Apple Magic Mouse 2 support
Date: Sat, 27 Mar 2021 21:05:05 +0800
Message-Id: <20210327130508.24849-2-johnchen902@gmail.com>
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Bluetooth device
Vendor 004c (Apple)
Device 0269 (Magic Mouse 2)
Add support for Apple Magic Mouse 2, putting the device in multi-touch
mode.
Co-authored-by: Rohit Pidaparthi <rohitpid@gmail.com>
Co-authored-by: RicardoEPRodrigues <ricardo.e.p.rodrigues@gmail.com>
Signed-off-by: John Chen <johnchen902@gmail.com>
---
drivers/hid/hid-ids.h | 1 +
drivers/hid/hid-magicmouse.c | 53 ++++++++++++++++++++++++++++++++----
2 files changed, 49 insertions(+), 5 deletions(-)
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index e42aaae3138f..fa0edf03570a 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -93,6 +93,7 @@
#define BT_VENDOR_ID_APPLE 0x004c
#define USB_DEVICE_ID_APPLE_MIGHTYMOUSE 0x0304
#define USB_DEVICE_ID_APPLE_MAGICMOUSE 0x030d
+#define USB_DEVICE_ID_APPLE_MAGICMOUSE2 0x0269
#define USB_DEVICE_ID_APPLE_MAGICTRACKPAD 0x030e
#define USB_DEVICE_ID_APPLE_MAGICTRACKPAD2 0x0265
#define USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI 0x020e
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index abd86903875f..7aad6ca56780 100644
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -54,6 +54,7 @@ MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state fie
#define TRACKPAD2_USB_REPORT_ID 0x02
#define TRACKPAD2_BT_REPORT_ID 0x31
#define MOUSE_REPORT_ID 0x29
+#define MOUSE2_REPORT_ID 0x12
#define DOUBLE_REPORT_ID 0xf7
/* These definitions are not precise, but they're close enough. (Bits
* 0x03 seem to indicate the aspect ratio of the touch, bits 0x70 seem
@@ -195,7 +196,8 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda
int id, x, y, size, orientation, touch_major, touch_minor, state, down;
int pressure = 0;
- if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
+ input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
id = (tdata[6] << 2 | tdata[5] >> 6) & 0xf;
x = (tdata[1] << 28 | tdata[0] << 20) >> 20;
y = -((tdata[2] << 24 | tdata[1] << 16) >> 20);
@@ -296,7 +298,8 @@ static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tda
input_report_abs(input, ABS_MT_PRESSURE, pressure);
if (report_undeciphered) {
- if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE)
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
+ input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2)
input_event(input, EV_MSC, MSC_RAW, tdata[7]);
else if (input->id.product !=
USB_DEVICE_ID_APPLE_MAGICTRACKPAD2)
@@ -380,6 +383,34 @@ static int magicmouse_raw_event(struct hid_device *hdev,
* ts = data[3] >> 6 | data[4] << 2 | data[5] << 10;
*/
break;
+ case MOUSE2_REPORT_ID:
+ /* Size is either 8 or (14 + 8 * N) */
+ if (size != 8 && (size < 14 || (size - 14) % 8 != 0))
+ return 0;
+ npoints = (size - 14) / 8;
+ if (npoints > 15) {
+ hid_warn(hdev, "invalid size value (%d) for MOUSE2_REPORT_ID\n",
+ size);
+ return 0;
+ }
+ msc->ntouches = 0;
+ for (ii = 0; ii < npoints; ii++)
+ magicmouse_emit_touch(msc, ii, data + ii * 8 + 14);
+
+ /* When emulating three-button mode, it is important
+ * to have the current touch information before
+ * generating a click event.
+ */
+ x = (int)((data[3] << 24) | (data[2] << 16)) >> 16;
+ y = (int)((data[5] << 24) | (data[4] << 16)) >> 16;
+ clicks = data[1];
+
+ /* The following bits provide a device specific timestamp. They
+ * are unused here.
+ *
+ * ts = data[11] >> 6 | data[12] << 2 | data[13] << 10;
+ */
+ break;
case DOUBLE_REPORT_ID:
/* Sometimes the trackpad sends two touch reports in one
* packet.
@@ -392,7 +423,8 @@ static int magicmouse_raw_event(struct hid_device *hdev,
return 0;
}
- if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
+ input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
magicmouse_emit_buttons(msc, clicks & 3);
input_report_rel(input, REL_X, x);
input_report_rel(input, REL_Y, y);
@@ -415,7 +447,8 @@ static int magicmouse_setup_input(struct input_dev *input, struct hid_device *hd
__set_bit(EV_KEY, input->evbit);
- if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
+ input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
__set_bit(BTN_LEFT, input->keybit);
__set_bit(BTN_RIGHT, input->keybit);
if (emulate_3button)
@@ -480,7 +513,8 @@ static int magicmouse_setup_input(struct input_dev *input, struct hid_device *hd
* the origin at the same position, and just uses the additive
* inverse of the reported Y.
*/
- if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
+ input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
input_set_abs_params(input, ABS_MT_ORIENTATION, -31, 32, 1, 0);
input_set_abs_params(input, ABS_MT_POSITION_X,
MOUSE_MIN_X, MOUSE_MAX_X, 4, 0);
@@ -586,6 +620,7 @@ static int magicmouse_probe(struct hid_device *hdev,
{
const u8 *feature;
const u8 feature_mt[] = { 0xD7, 0x01 };
+ const u8 feature_mt_mouse2[] = { 0xF1, 0x02, 0x01 };
const u8 feature_mt_trackpad2_usb[] = { 0x02, 0x01 };
const u8 feature_mt_trackpad2_bt[] = { 0xF1, 0x02, 0x01 };
u8 *buf;
@@ -631,6 +666,9 @@ static int magicmouse_probe(struct hid_device *hdev,
if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE)
report = hid_register_report(hdev, HID_INPUT_REPORT,
MOUSE_REPORT_ID, 0);
+ else if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2)
+ report = hid_register_report(hdev, HID_INPUT_REPORT,
+ MOUSE2_REPORT_ID, 0);
else if (id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) {
if (id->vendor == BT_VENDOR_ID_APPLE)
report = hid_register_report(hdev, HID_INPUT_REPORT,
@@ -660,6 +698,9 @@ static int magicmouse_probe(struct hid_device *hdev,
feature_size = sizeof(feature_mt_trackpad2_usb);
feature = feature_mt_trackpad2_usb;
}
+ } else if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
+ feature_size = sizeof(feature_mt_mouse2);
+ feature = feature_mt_mouse2;
} else {
feature_size = sizeof(feature_mt);
feature = feature_mt;
@@ -696,6 +737,8 @@ static int magicmouse_probe(struct hid_device *hdev,
static const struct hid_device_id magic_mice[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_MAGICMOUSE), .driver_data = 0 },
+ { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE,
+ USB_DEVICE_ID_APPLE_MAGICMOUSE2), .driver_data = 0 },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_MAGICTRACKPAD), .driver_data = 0 },
{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE,
--
2.31.0
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