Commit | Line | Data |
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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
fcfacfd3 JS |
2 | /* |
3 | * HID driver for some chicony "special" devices | |
4 | * | |
5 | * Copyright (c) 1999 Andreas Gal | |
6 | * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> | |
7 | * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc | |
8 | * Copyright (c) 2006-2007 Jiri Kosina | |
9 | * Copyright (c) 2007 Paul Walmsley | |
10 | * Copyright (c) 2008 Jiri Slaby | |
11 | */ | |
12 | ||
13 | /* | |
fcfacfd3 JS |
14 | */ |
15 | ||
16 | #include <linux/device.h> | |
17 | #include <linux/input.h> | |
18 | #include <linux/hid.h> | |
19 | #include <linux/module.h> | |
9a1d78a3 | 20 | #include <linux/usb.h> |
fcfacfd3 JS |
21 | |
22 | #include "hid-ids.h" | |
23 | ||
24 | #define ch_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ | |
25 | EV_KEY, (c)) | |
26 | static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi, | |
27 | struct hid_field *field, struct hid_usage *usage, | |
28 | unsigned long **bit, int *max) | |
29 | { | |
30 | if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR) | |
31 | return 0; | |
32 | ||
33 | set_bit(EV_REP, hi->input->evbit); | |
34 | switch (usage->hid & HID_USAGE) { | |
35 | case 0xff01: ch_map_key_clear(BTN_1); break; | |
36 | case 0xff02: ch_map_key_clear(BTN_2); break; | |
37 | case 0xff03: ch_map_key_clear(BTN_3); break; | |
38 | case 0xff04: ch_map_key_clear(BTN_4); break; | |
39 | case 0xff05: ch_map_key_clear(BTN_5); break; | |
40 | case 0xff06: ch_map_key_clear(BTN_6); break; | |
41 | case 0xff07: ch_map_key_clear(BTN_7); break; | |
42 | case 0xff08: ch_map_key_clear(BTN_8); break; | |
43 | case 0xff09: ch_map_key_clear(BTN_9); break; | |
44 | case 0xff0a: ch_map_key_clear(BTN_A); break; | |
45 | case 0xff0b: ch_map_key_clear(BTN_B); break; | |
3596bb92 KYL |
46 | case 0x00f1: ch_map_key_clear(KEY_WLAN); break; |
47 | case 0x00f2: ch_map_key_clear(KEY_BRIGHTNESSDOWN); break; | |
48 | case 0x00f3: ch_map_key_clear(KEY_BRIGHTNESSUP); break; | |
49 | case 0x00f4: ch_map_key_clear(KEY_DISPLAY_OFF); break; | |
6c30d5a5 KYL |
50 | case 0x00f7: ch_map_key_clear(KEY_CAMERA); break; |
51 | case 0x00f8: ch_map_key_clear(KEY_PROG1); break; | |
fcfacfd3 JS |
52 | default: |
53 | return 0; | |
54 | } | |
55 | return 1; | |
56 | } | |
57 | ||
9a1d78a3 НК |
58 | static __u8 *ch_switch12_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
59 | unsigned int *rsize) | |
60 | { | |
61 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); | |
62 | ||
63 | if (intf->cur_altsetting->desc.bInterfaceNumber == 1) { | |
64 | /* Change usage maximum and logical maximum from 0x7fff to | |
65 | * 0x2fff, so they don't exceed HID_MAX_USAGES */ | |
66 | switch (hdev->product) { | |
67 | case USB_DEVICE_ID_CHICONY_ACER_SWITCH12: | |
68 | if (*rsize >= 128 && rdesc[64] == 0xff && rdesc[65] == 0x7f | |
69 | && rdesc[69] == 0xff && rdesc[70] == 0x7f) { | |
70 | hid_info(hdev, "Fixing up report descriptor\n"); | |
71 | rdesc[65] = rdesc[70] = 0x2f; | |
72 | } | |
73 | break; | |
74 | } | |
75 | ||
76 | } | |
77 | return rdesc; | |
78 | } | |
79 | ||
80 | ||
fcfacfd3 JS |
81 | static const struct hid_device_id ch_devices[] = { |
82 | { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) }, | |
3596bb92 | 83 | { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) }, |
9a1d78a3 | 84 | { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) }, |
fcfacfd3 JS |
85 | { } |
86 | }; | |
87 | MODULE_DEVICE_TABLE(hid, ch_devices); | |
88 | ||
89 | static struct hid_driver ch_driver = { | |
90 | .name = "chicony", | |
91 | .id_table = ch_devices, | |
9a1d78a3 | 92 | .report_fixup = ch_switch12_report_fixup, |
fcfacfd3 JS |
93 | .input_mapping = ch_input_mapping, |
94 | }; | |
f425458e | 95 | module_hid_driver(ch_driver); |
fcfacfd3 | 96 | |
fcfacfd3 | 97 | MODULE_LICENSE("GPL"); |