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19#include <linux/device.h>
20#include <linux/hid.h>
21#include <linux/module.h>
22
23#include "hid-ids.h"
24
25static __u8 *sp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
26 unsigned int *rsize)
27{
28 if (*rsize >= 107 && rdesc[104] == 0x26 && rdesc[105] == 0x80 &&
29 rdesc[106] == 0x03) {
30 hid_info(hdev, "fixing up Sunplus Wireless Desktop report descriptor\n");
31 rdesc[105] = rdesc[110] = 0x03;
32 rdesc[106] = rdesc[111] = 0x21;
33 }
34 return rdesc;
35}
36
37#define sp_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
38 EV_KEY, (c))
39static int sp_input_mapping(struct hid_device *hdev, struct hid_input *hi,
40 struct hid_field *field, struct hid_usage *usage,
41 unsigned long **bit, int *max)
42{
43 if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
44 return 0;
45
46 switch (usage->hid & HID_USAGE) {
47 case 0x2003: sp_map_key_clear(KEY_ZOOMIN); break;
48 case 0x2103: sp_map_key_clear(KEY_ZOOMOUT); break;
49 default:
50 return 0;
51 }
52 return 1;
53}
54
55static const struct hid_device_id sp_devices[] = {
56 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
57 { }
58};
59MODULE_DEVICE_TABLE(hid, sp_devices);
60
61static struct hid_driver sp_driver = {
62 .name = "sunplus",
63 .id_table = sp_devices,
64 .report_fixup = sp_report_fixup,
65 .input_mapping = sp_input_mapping,
66};
67
68static int __init sp_init(void)
69{
70 return hid_register_driver(&sp_driver);
71}
72
73static void __exit sp_exit(void)
74{
75 hid_unregister_driver(&sp_driver);
76}
77
78module_init(sp_init);
79module_exit(sp_exit);
80MODULE_LICENSE("GPL");
81