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HID: Add support for side buttons of Xiaomi Mi Dual Mode Wireless Mouse Silent

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This patch enables side-buttons of Xiaomi Bluetooth mouse (specifically Xiaomi
Mi Dual Mode Wireless Mouse Silent Edition).

The mouse sends invalid button count in its HID Report Descriptor and this
patch just replaces its descriptor with corrected one. With this driver side
buttons work as expected acting like Back/Forward buttons.

Signed-off-by: Ilya Skriblovsky <ilyaskriblovsky@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Ilya Skriblovsky 2021-09-19 14:12:36 +03:00 committed by Jiri Kosina
parent 83ec916974
commit 95157723dc
4 changed files with 105 additions and 0 deletions
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7
drivers/hid/Kconfig
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@ -468,6 +468,13 @@ config HID_VIEWSONIC
help
Support for ViewSonic/Signotec PD1011 signature pad.
config HID_XIAOMI
tristate "Xiaomi"
depends on HID
help
Adds support for side buttons of Xiaomi Mi Dual Mode Wireless
Mouse Silent Edition.
config HID_GYRATION
tristate "Gyration remote control"
depends on HID

1
drivers/hid/Makefile
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@ -125,6 +125,7 @@ hid-uclogic-objs := hid-uclogic-core.o \
obj-$(CONFIG_HID_UCLOGIC) += hid-uclogic.o
obj-$(CONFIG_HID_UDRAW_PS3) += hid-udraw-ps3.o
obj-$(CONFIG_HID_LED) += hid-led.o
obj-$(CONFIG_HID_XIAOMI) += hid-xiaomi.o
obj-$(CONFIG_HID_XINMO) += hid-xinmo.o
obj-$(CONFIG_HID_ZEROPLUS) += hid-zpff.o
obj-$(CONFIG_HID_ZYDACRON) += hid-zydacron.o

3
drivers/hid/hid-ids.h
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@ -1298,6 +1298,9 @@
#define USB_VENDOR_ID_XAT 0x2505
#define USB_DEVICE_ID_XAT_CSR 0x0220
#define USB_VENDOR_ID_XIAOMI 0x2717
#define USB_DEVICE_ID_MI_SILENT_MOUSE 0x5014
#define USB_VENDOR_ID_XIN_MO 0x16c0
#define USB_DEVICE_ID_XIN_MO_DUAL_ARCADE 0x05e1
#define USB_DEVICE_ID_THT_2P_ARCADE 0x75e1

94
drivers/hid/hid-xiaomi.c Normal file
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@ -0,0 +1,94 @@
// SPDX-License-Identifier: GPL-2.0
/*
* HID driver for Xiaomi Mi Dual Mode Wireless Mouse Silent Edition
*
* Copyright (c) 2021 Ilya Skriblovsky
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/hid.h>
#include "hid-ids.h"
/* Fixed Mi Silent Mouse report descriptor */
/* Button's Usage Maximum changed from 3 to 5 to make side buttons work */
#define MI_SILENT_MOUSE_ORIG_RDESC_LENGTH 87
static __u8 mi_silent_mouse_rdesc_fixed[] = {
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x02, /* Usage (Mouse), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x03, /* Report ID (3), */
0x09, 0x01, /* Usage (Pointer), */
0xA1, 0x00, /* Collection (Physical), */
0x05, 0x09, /* Usage Page (Button), */
0x19, 0x01, /* Usage Minimum (01h), */
0x29, 0x05, /* X */ /* Usage Maximum (05h), */
0x15, 0x00, /* Logical Minimum (0), */
0x25, 0x01, /* Logical Maximum (1), */
0x75, 0x01, /* Report Size (1), */
0x95, 0x05, /* Report Count (5), */
0x81, 0x02, /* Input (Variable), */
0x75, 0x03, /* Report Size (3), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x01, /* Input (Constant), */
0x05, 0x01, /* Usage Page (Desktop), */
0x09, 0x30, /* Usage (X), */
0x09, 0x31, /* Usage (Y), */
0x15, 0x81, /* Logical Minimum (-127), */
0x25, 0x7F, /* Logical Maximum (127), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x02, /* Report Count (2), */
0x81, 0x06, /* Input (Variable, Relative), */
0x09, 0x38, /* Usage (Wheel), */
0x15, 0x81, /* Logical Minimum (-127), */
0x25, 0x7F, /* Logical Maximum (127), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x01, /* Report Count (1), */
0x81, 0x06, /* Input (Variable, Relative), */
0xC0, /* End Collection, */
0xC0, /* End Collection, */
0x06, 0x01, 0xFF, /* Usage Page (FF01h), */
0x09, 0x01, /* Usage (01h), */
0xA1, 0x01, /* Collection (Application), */
0x85, 0x05, /* Report ID (5), */
0x09, 0x05, /* Usage (05h), */
0x15, 0x00, /* Logical Minimum (0), */
0x26, 0xFF, 0x00, /* Logical Maximum (255), */
0x75, 0x08, /* Report Size (8), */
0x95, 0x04, /* Report Count (4), */
0xB1, 0x02, /* Feature (Variable), */
0xC0 /* End Collection */
};
static __u8 *xiaomi_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
switch (hdev->product) {
case USB_DEVICE_ID_MI_SILENT_MOUSE:
if (*rsize == MI_SILENT_MOUSE_ORIG_RDESC_LENGTH) {
hid_info(hdev, "fixing up Mi Silent Mouse report descriptor\n");
rdesc = mi_silent_mouse_rdesc_fixed;
*rsize = sizeof(mi_silent_mouse_rdesc_fixed);
}
break;
}
return rdesc;
}
static const struct hid_device_id xiaomi_devices[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_XIAOMI, USB_DEVICE_ID_MI_SILENT_MOUSE) },
{ }
};
MODULE_DEVICE_TABLE(hid, xiaomi_devices);
static struct hid_driver xiaomi_driver = {
.name = "xiaomi",
.id_table = xiaomi_devices,
.report_fixup = xiaomi_report_fixup,
};
module_hid_driver(xiaomi_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Ilya Skriblovsky <IlyaSkriblovsky@gmail.com>");
MODULE_DESCRIPTION("Fixing side buttons of Xiaomi Mi Silent Mouse");