1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * HID driver for some petalynx "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) 2008 Jiri Slaby
10 */
11
12/*
13 */
14
15#include <linux/device.h>
16#include <linux/hid.h>
17#include <linux/module.h>
18
19#include "hid-ids.h"
20
21/* Petalynx Maxter Remote has maximum for consumer page set too low */
22static __u8 *pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
23 unsigned int *rsize)
24{
25 if (*rsize >= 62 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
26 rdesc[41] == 0x00 && rdesc[59] == 0x26 &&
27 rdesc[60] == 0xf9 && rdesc[61] == 0x00) {
28 hid_info(hdev, "fixing up Petalynx Maxter Remote report descriptor\n");
29 rdesc[60] = 0xfa;
30 rdesc[40] = 0xfa;
31 }
32 return rdesc;
33}
34
35#define pl_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
36 EV_KEY, (c))
37static int pl_input_mapping(struct hid_device *hdev, struct hid_input *hi,
38 struct hid_field *field, struct hid_usage *usage,
39 unsigned long **bit, int *max)
40{
41 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_LOGIVENDOR) {
42 switch (usage->hid & HID_USAGE) {
43 case 0x05a: pl_map_key_clear(KEY_TEXT); break;
44 case 0x05b: pl_map_key_clear(KEY_RED); break;
45 case 0x05c: pl_map_key_clear(KEY_GREEN); break;
46 case 0x05d: pl_map_key_clear(KEY_YELLOW); break;
47 case 0x05e: pl_map_key_clear(KEY_BLUE); break;
48 default:
49 return 0;
50 }
51 return 1;
52 }
53
54 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
55 switch (usage->hid & HID_USAGE) {
56 case 0x0f6: pl_map_key_clear(KEY_NEXT); break;
57 case 0x0fa: pl_map_key_clear(KEY_BACK); break;
58 default:
59 return 0;
60 }
61 return 1;
62 }
63
64 return 0;
65}
66
67static int pl_probe(struct hid_device *hdev, const struct hid_device_id *id)
68{
69 int ret;
70
71 hdev->quirks |= HID_QUIRK_NOGET;
72
73 ret = hid_parse(hdev);
74 if (ret) {
75 hid_err(hdev, "parse failed\n");
76 goto err_free;
77 }
78
79 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
80 if (ret) {
81 hid_err(hdev, "hw start failed\n");
82 goto err_free;
83 }
84
85 return 0;
86err_free:
87 return ret;
88}
89
90static const struct hid_device_id pl_devices[] = {
91 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
92 { }
93};
94MODULE_DEVICE_TABLE(hid, pl_devices);
95
96static struct hid_driver pl_driver = {
97 .name = "petalynx",
98 .id_table = pl_devices,
99 .report_fixup = pl_report_fixup,
100 .input_mapping = pl_input_mapping,
101 .probe = pl_probe,
102};
103module_hid_driver(pl_driver);
104
105MODULE_LICENSE("GPL");
106

source code of linux/drivers/hid/hid-petalynx.c