1/*
2 *  HID driver for some petalynx "special" devices
3 *
4 *  Copyright (c) 1999 Andreas Gal
5 *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6 *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
7 *  Copyright (c) 2006-2007 Jiri Kosina
8 *  Copyright (c) 2007 Paul Walmsley
9 *  Copyright (c) 2008 Jiri Slaby
10 */
11
12/*
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License as published by the Free
15 * Software Foundation; either version 2 of the License, or (at your option)
16 * any later version.
17 */
18
19#include <linux/device.h>
20#include <linux/hid.h>
21#include <linux/module.h>
22
23#include "hid-ids.h"
24
25/* Petalynx Maxter Remote has maximum for consumer page set too low */
26static __u8 *pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
27		unsigned int *rsize)
28{
29	if (*rsize >= 60 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
30			rdesc[41] == 0x00 && rdesc[59] == 0x26 &&
31			rdesc[60] == 0xf9 && rdesc[61] == 0x00) {
32		hid_info(hdev, "fixing up Petalynx Maxter Remote report descriptor\n");
33		rdesc[60] = 0xfa;
34		rdesc[40] = 0xfa;
35	}
36	return rdesc;
37}
38
39#define pl_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
40					EV_KEY, (c))
41static int pl_input_mapping(struct hid_device *hdev, struct hid_input *hi,
42		struct hid_field *field, struct hid_usage *usage,
43		unsigned long **bit, int *max)
44{
45	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_LOGIVENDOR) {
46		switch (usage->hid & HID_USAGE) {
47		case 0x05a: pl_map_key_clear(KEY_TEXT);		break;
48		case 0x05b: pl_map_key_clear(KEY_RED);		break;
49		case 0x05c: pl_map_key_clear(KEY_GREEN);	break;
50		case 0x05d: pl_map_key_clear(KEY_YELLOW);	break;
51		case 0x05e: pl_map_key_clear(KEY_BLUE);		break;
52		default:
53			return 0;
54		}
55		return 1;
56	}
57
58	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
59		switch (usage->hid & HID_USAGE) {
60		case 0x0f6: pl_map_key_clear(KEY_NEXT);		break;
61		case 0x0fa: pl_map_key_clear(KEY_BACK);		break;
62		default:
63			return 0;
64		}
65		return 1;
66	}
67
68	return 0;
69}
70
71static int pl_probe(struct hid_device *hdev, const struct hid_device_id *id)
72{
73	int ret;
74
75	hdev->quirks |= HID_QUIRK_NOGET;
76
77	ret = hid_parse(hdev);
78	if (ret) {
79		hid_err(hdev, "parse failed\n");
80		goto err_free;
81	}
82
83	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
84	if (ret) {
85		hid_err(hdev, "hw start failed\n");
86		goto err_free;
87	}
88
89	return 0;
90err_free:
91	return ret;
92}
93
94static const struct hid_device_id pl_devices[] = {
95	{ HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
96	{ }
97};
98MODULE_DEVICE_TABLE(hid, pl_devices);
99
100static struct hid_driver pl_driver = {
101	.name = "petalynx",
102	.id_table = pl_devices,
103	.report_fixup = pl_report_fixup,
104	.input_mapping = pl_input_mapping,
105	.probe = pl_probe,
106};
107
108static int __init pl_init(void)
109{
110	return hid_register_driver(&pl_driver);
111}
112
113static void __exit pl_exit(void)
114{
115	hid_unregister_driver(&pl_driver);
116}
117
118module_init(pl_init);
119module_exit(pl_exit);
120MODULE_LICENSE("GPL");
121