add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/hid/hid-ite.c
..
..
@@ -1,10 +1,7 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
2
3
  * HID driver for some ITE "special" devices
3
4
  * Copyright (c) 2017 Hans de Goede <hdegoede@redhat.com>
4
- *
5
- * This program is free software; you can redistribute it and/or modify
6
- * it under the terms of the GNU General Public License version 2 as
7
- * published by the Free Software Foundation.
8
5
  */
9
6
 
10
7
 #include <linux/device.h>
..
..
@@ -13,6 +10,59 @@
13
10
 #include <linux/module.h>
14
11
 
15
12
 #include "hid-ids.h"
13
+
14
+#define QUIRK_TOUCHPAD_ON_OFF_REPORT		BIT(0)
15
+
16
+static __u8 *ite_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize)
17
+{
18
+	unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
19
+
20
+	if (quirks & QUIRK_TOUCHPAD_ON_OFF_REPORT) {
21
+		/* For Acer Aspire Switch 10 SW5-012 keyboard-dock */
22
+		if (*rsize == 188 && rdesc[162] == 0x81 && rdesc[163] == 0x02) {
23
+			hid_info(hdev, "Fixing up Acer Sw5-012 ITE keyboard report descriptor\n");
24
+			rdesc[163] = HID_MAIN_ITEM_RELATIVE;
25
+		}
26
+		/* For Acer One S1002/S1003 keyboard-dock */
27
+		if (*rsize == 188 && rdesc[185] == 0x81 && rdesc[186] == 0x02) {
28
+			hid_info(hdev, "Fixing up Acer S1002/S1003 ITE keyboard report descriptor\n");
29
+			rdesc[186] = HID_MAIN_ITEM_RELATIVE;
30
+		}
31
+		/* For Acer Aspire Switch 10E (SW3-016) keyboard-dock */
32
+		if (*rsize == 210 && rdesc[184] == 0x81 && rdesc[185] == 0x02) {
33
+			hid_info(hdev, "Fixing up Acer Aspire Switch 10E (SW3-016) ITE keyboard report descriptor\n");
34
+			rdesc[185] = HID_MAIN_ITEM_RELATIVE;
35
+		}
36
+	}
37
+
38
+	return rdesc;
39
+}
40
+
41
+static int ite_input_mapping(struct hid_device *hdev,
42
+		struct hid_input *hi, struct hid_field *field,
43
+		struct hid_usage *usage, unsigned long **bit,
44
+		int *max)
45
+{
46
+
47
+	unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
48
+
49
+	if ((quirks & QUIRK_TOUCHPAD_ON_OFF_REPORT) &&
50
+	    (usage->hid & HID_USAGE_PAGE) == 0x00880000) {
51
+		if (usage->hid == 0x00880078) {
52
+			/* Touchpad on, userspace expects F22 for this */
53
+			hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_F22);
54
+			return 1;
55
+		}
56
+		if (usage->hid == 0x00880079) {
57
+			/* Touchpad off, userspace expects F23 for this */
58
+			hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_F23);
59
+			return 1;
60
+		}
61
+		return -1;
62
+	}
63
+
64
+	return 0;
65
+}
16
66
 
17
67
 static int ite_event(struct hid_device *hdev, struct hid_field *field,
18
68
 		     struct hid_usage *usage, __s32 value)
..
..
@@ -40,13 +90,42 @@
40
90
 	return 0;
41
91
 }
42
92
 
93
+static int ite_probe(struct hid_device *hdev, const struct hid_device_id *id)
94
+{
95
+	int ret;
96
+
97
+	hid_set_drvdata(hdev, (void *)id->driver_data);
98
+
99
+	ret = hid_open_report(hdev);
100
+	if (ret)
101
+		return ret;
102
+
103
+	return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
104
+}
105
+
43
106
 static const struct hid_device_id ite_devices[] = {
44
107
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE8595) },
45
108
 	{ HID_USB_DEVICE(USB_VENDOR_ID_258A, USB_DEVICE_ID_258A_6A88) },
46
109
 	/* ITE8595 USB kbd ctlr, with Synaptics touchpad connected to it. */
47
110
 	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
48
111
 		     USB_VENDOR_ID_SYNAPTICS,
49
-		     USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_012) },
112
+		     USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_012),
113
+	  .driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
114
+	/* ITE8910 USB kbd ctlr, with Synaptics touchpad connected to it. */
115
+	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
116
+		     USB_VENDOR_ID_SYNAPTICS,
117
+		     USB_DEVICE_ID_SYNAPTICS_ACER_ONE_S1002),
118
+	  .driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
119
+	/* ITE8910 USB kbd ctlr, with Synaptics touchpad connected to it. */
120
+	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
121
+		     USB_VENDOR_ID_SYNAPTICS,
122
+		     USB_DEVICE_ID_SYNAPTICS_ACER_ONE_S1003),
123
+	  .driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
124
+	/* ITE8910 USB kbd ctlr, with Synaptics touchpad connected to it. */
125
+	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
126
+		     USB_VENDOR_ID_SYNAPTICS,
127
+		     USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_017),
128
+	  .driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
50
129
 	{ }
51
130
 };
52
131
 MODULE_DEVICE_TABLE(hid, ite_devices);
..
..
@@ -54,6 +133,9 @@
54
133
 static struct hid_driver ite_driver = {
55
134
 	.name = "itetech",
56
135
 	.id_table = ite_devices,
136
+	.probe = ite_probe,
137
+	.report_fixup = ite_report_fixup,
138
+	.input_mapping = ite_input_mapping,
57
139
 	.event = ite_event,
58
140
 };
59
141
 module_hid_driver(ite_driver);