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1/*
2 * HID driver for some samsung "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) 2008 Jiri Slaby
9 * Copyright (c) 2010 Don Prince <dhprince.devel@yahoo.co.uk>
10 *
11 *
12 * This driver supports several HID devices:
13 *
14 * [0419:0001] Samsung IrDA remote controller (reports as Cypress USB Mouse).
15 * various hid report fixups for different variants.
16 *
17 * [0419:0600] Creative Desktop Wireless 6000 keyboard/mouse combo
18 * several key mappings used from the consumer usage page
19 * deviate from the USB HUT 1.12 standard.
20 *
21 */
22
23/*
24 * This program is free software; you can redistribute it and/or modify it
25 * under the terms of the GNU General Public License as published by the Free
26 * Software Foundation; either version 2 of the License, or (at your option)
27 * any later version.
28 */
29
30#include <linux/device.h>
31#include <linux/usb.h>
32#include <linux/hid.h>
33#include <linux/module.h>
34
35#include "hid-ids.h"
36
37/*
38 * There are several variants for 0419:0001:
39 *
40 * 1. 184 byte report descriptor
41 * Vendor specific report #4 has a size of 48 bit,
42 * and therefore is not accepted when inspecting the descriptors.
43 * As a workaround we reinterpret the report as:
44 * Variable type, count 6, size 8 bit, log. maximum 255
45 * The burden to reconstruct the data is moved into user space.
46 *
47 * 2. 203 byte report descriptor
48 * Report #4 has an array field with logical range 0..18 instead of 1..15.
49 *
50 * 3. 135 byte report descriptor
51 * Report #4 has an array field with logical range 0..17 instead of 1..14.
52 *
53 * 4. 171 byte report descriptor
54 * Report #3 has an array field with logical range 0..1 instead of 1..3.
55 */
56static inline void samsung_irda_dev_trace(struct hid_device *hdev,
57 unsigned int rsize)
58{
59 hid_info(hdev, "fixing up Samsung IrDA %d byte report descriptor\n",
60 rsize);
61}
62
63static __u8 *samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc,
64 unsigned int *rsize)
65{
66 if (*rsize == 184 && rdesc[175] == 0x25 && rdesc[176] == 0x40 &&
67 rdesc[177] == 0x75 && rdesc[178] == 0x30 &&
68 rdesc[179] == 0x95 && rdesc[180] == 0x01 &&
69 rdesc[182] == 0x40) {
70 samsung_irda_dev_trace(hdev, 184);
71 rdesc[176] = 0xff;
72 rdesc[178] = 0x08;
73 rdesc[180] = 0x06;
74 rdesc[182] = 0x42;
75 } else
76 if (*rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 &&
77 rdesc[194] == 0x25 && rdesc[195] == 0x12) {
78 samsung_irda_dev_trace(hdev, 203);
79 rdesc[193] = 0x1;
80 rdesc[195] = 0xf;
81 } else
82 if (*rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 &&
83 rdesc[126] == 0x25 && rdesc[127] == 0x11) {
84 samsung_irda_dev_trace(hdev, 135);
85 rdesc[125] = 0x1;
86 rdesc[127] = 0xe;
87 } else
88 if (*rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 &&
89 rdesc[162] == 0x25 && rdesc[163] == 0x01) {
90 samsung_irda_dev_trace(hdev, 171);
91 rdesc[161] = 0x1;
92 rdesc[163] = 0x3;
93 }
94 return rdesc;
95}
96
97#define samsung_kbd_mouse_map_key_clear(c) \
98 hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
99
100static int samsung_kbd_mouse_input_mapping(struct hid_device *hdev,
101 struct hid_input *hi, struct hid_field *field, struct hid_usage *usage,
102 unsigned long **bit, int *max)
103{
104 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
105 unsigned short ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
106
107 if (1 != ifnum || HID_UP_CONSUMER != (usage->hid & HID_USAGE_PAGE))
108 return 0;
109
110 dbg_hid("samsung wireless keyboard/mouse input mapping event [0x%x]\n",
111 usage->hid & HID_USAGE);
112
113 switch (usage->hid & HID_USAGE) {
114 /* report 2 */
115 case 0x183: samsung_kbd_mouse_map_key_clear(KEY_MEDIA); break;
116 case 0x195: samsung_kbd_mouse_map_key_clear(KEY_EMAIL); break;
117 case 0x196: samsung_kbd_mouse_map_key_clear(KEY_CALC); break;
118 case 0x197: samsung_kbd_mouse_map_key_clear(KEY_COMPUTER); break;
119 case 0x22b: samsung_kbd_mouse_map_key_clear(KEY_SEARCH); break;
120 case 0x22c: samsung_kbd_mouse_map_key_clear(KEY_WWW); break;
121 case 0x22d: samsung_kbd_mouse_map_key_clear(KEY_BACK); break;
122 case 0x22e: samsung_kbd_mouse_map_key_clear(KEY_FORWARD); break;
123 case 0x22f: samsung_kbd_mouse_map_key_clear(KEY_FAVORITES); break;
124 case 0x230: samsung_kbd_mouse_map_key_clear(KEY_REFRESH); break;
125 case 0x231: samsung_kbd_mouse_map_key_clear(KEY_STOP); break;
126 default:
127 return 0;
128 }
129
130 return 1;
131}
132
133static __u8 *samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc,
134 unsigned int *rsize)
135{
136 if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product)
137 rdesc = samsung_irda_report_fixup(hdev, rdesc, rsize);
138 return rdesc;
139}
140
141static int samsung_input_mapping(struct hid_device *hdev, struct hid_input *hi,
142 struct hid_field *field, struct hid_usage *usage,
143 unsigned long **bit, int *max)
144{
145 int ret = 0;
146
147 if (USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE == hdev->product)
148 ret = samsung_kbd_mouse_input_mapping(hdev,
149 hi, field, usage, bit, max);
150
151 return ret;
152}
153
154static int samsung_probe(struct hid_device *hdev,
155 const struct hid_device_id *id)
156{
157 int ret;
158 unsigned int cmask = HID_CONNECT_DEFAULT;
159
160 ret = hid_parse(hdev);
161 if (ret) {
162 hid_err(hdev, "parse failed\n");
163 goto err_free;
164 }
165
166 if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product) {
167 if (hdev->rsize == 184) {
168 /* disable hidinput, force hiddev */
169 cmask = (cmask & ~HID_CONNECT_HIDINPUT) |
170 HID_CONNECT_HIDDEV_FORCE;
171 }
172 }
173
174 ret = hid_hw_start(hdev, cmask);
175 if (ret) {
176 hid_err(hdev, "hw start failed\n");
177 goto err_free;
178 }
179
180 return 0;
181err_free:
182 return ret;
183}
184
185static const struct hid_device_id samsung_devices[] = {
186 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
187 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
188 { }
189};
190MODULE_DEVICE_TABLE(hid, samsung_devices);
191
192static struct hid_driver samsung_driver = {
193 .name = "samsung",
194 .id_table = samsung_devices,
195 .report_fixup = samsung_report_fixup,
196 .input_mapping = samsung_input_mapping,
197 .probe = samsung_probe,
198};
199module_hid_driver(samsung_driver);
200
201MODULE_LICENSE("GPL");
1/*
2 * HID driver for some samsung "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 * Copyright (c) 2010 Don Prince <dhprince.devel@yahoo.co.uk>
11 *
12 *
13 * This driver supports several HID devices:
14 *
15 * [0419:0001] Samsung IrDA remote controller (reports as Cypress USB Mouse).
16 * various hid report fixups for different variants.
17 *
18 * [0419:0600] Creative Desktop Wireless 6000 keyboard/mouse combo
19 * several key mappings used from the consumer usage page
20 * deviate from the USB HUT 1.12 standard.
21 *
22 */
23
24/*
25 * This program is free software; you can redistribute it and/or modify it
26 * under the terms of the GNU General Public License as published by the Free
27 * Software Foundation; either version 2 of the License, or (at your option)
28 * any later version.
29 */
30
31#include <linux/device.h>
32#include <linux/usb.h>
33#include <linux/hid.h>
34#include <linux/module.h>
35
36#include "hid-ids.h"
37
38/*
39 * There are several variants for 0419:0001:
40 *
41 * 1. 184 byte report descriptor
42 * Vendor specific report #4 has a size of 48 bit,
43 * and therefore is not accepted when inspecting the descriptors.
44 * As a workaround we reinterpret the report as:
45 * Variable type, count 6, size 8 bit, log. maximum 255
46 * The burden to reconstruct the data is moved into user space.
47 *
48 * 2. 203 byte report descriptor
49 * Report #4 has an array field with logical range 0..18 instead of 1..15.
50 *
51 * 3. 135 byte report descriptor
52 * Report #4 has an array field with logical range 0..17 instead of 1..14.
53 *
54 * 4. 171 byte report descriptor
55 * Report #3 has an array field with logical range 0..1 instead of 1..3.
56 */
57static inline void samsung_irda_dev_trace(struct hid_device *hdev,
58 unsigned int rsize)
59{
60 hid_info(hdev, "fixing up Samsung IrDA %d byte report descriptor\n",
61 rsize);
62}
63
64static __u8 *samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc,
65 unsigned int *rsize)
66{
67 if (*rsize == 184 && rdesc[175] == 0x25 && rdesc[176] == 0x40 &&
68 rdesc[177] == 0x75 && rdesc[178] == 0x30 &&
69 rdesc[179] == 0x95 && rdesc[180] == 0x01 &&
70 rdesc[182] == 0x40) {
71 samsung_irda_dev_trace(hdev, 184);
72 rdesc[176] = 0xff;
73 rdesc[178] = 0x08;
74 rdesc[180] = 0x06;
75 rdesc[182] = 0x42;
76 } else
77 if (*rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 &&
78 rdesc[194] == 0x25 && rdesc[195] == 0x12) {
79 samsung_irda_dev_trace(hdev, 203);
80 rdesc[193] = 0x1;
81 rdesc[195] = 0xf;
82 } else
83 if (*rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 &&
84 rdesc[126] == 0x25 && rdesc[127] == 0x11) {
85 samsung_irda_dev_trace(hdev, 135);
86 rdesc[125] = 0x1;
87 rdesc[127] = 0xe;
88 } else
89 if (*rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 &&
90 rdesc[162] == 0x25 && rdesc[163] == 0x01) {
91 samsung_irda_dev_trace(hdev, 171);
92 rdesc[161] = 0x1;
93 rdesc[163] = 0x3;
94 }
95 return rdesc;
96}
97
98#define samsung_kbd_mouse_map_key_clear(c) \
99 hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
100
101static int samsung_kbd_mouse_input_mapping(struct hid_device *hdev,
102 struct hid_input *hi, struct hid_field *field, struct hid_usage *usage,
103 unsigned long **bit, int *max)
104{
105 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
106 unsigned short ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
107
108 if (1 != ifnum || HID_UP_CONSUMER != (usage->hid & HID_USAGE_PAGE))
109 return 0;
110
111 dbg_hid("samsung wireless keyboard/mouse input mapping event [0x%x]\n",
112 usage->hid & HID_USAGE);
113
114 switch (usage->hid & HID_USAGE) {
115 /* report 2 */
116 case 0x183: samsung_kbd_mouse_map_key_clear(KEY_MEDIA); break;
117 case 0x195: samsung_kbd_mouse_map_key_clear(KEY_EMAIL); break;
118 case 0x196: samsung_kbd_mouse_map_key_clear(KEY_CALC); break;
119 case 0x197: samsung_kbd_mouse_map_key_clear(KEY_COMPUTER); break;
120 case 0x22b: samsung_kbd_mouse_map_key_clear(KEY_SEARCH); break;
121 case 0x22c: samsung_kbd_mouse_map_key_clear(KEY_WWW); break;
122 case 0x22d: samsung_kbd_mouse_map_key_clear(KEY_BACK); break;
123 case 0x22e: samsung_kbd_mouse_map_key_clear(KEY_FORWARD); break;
124 case 0x22f: samsung_kbd_mouse_map_key_clear(KEY_FAVORITES); break;
125 case 0x230: samsung_kbd_mouse_map_key_clear(KEY_REFRESH); break;
126 case 0x231: samsung_kbd_mouse_map_key_clear(KEY_STOP); break;
127 default:
128 return 0;
129 }
130
131 return 1;
132}
133
134static __u8 *samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc,
135 unsigned int *rsize)
136{
137 if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product)
138 rdesc = samsung_irda_report_fixup(hdev, rdesc, rsize);
139 return rdesc;
140}
141
142static int samsung_input_mapping(struct hid_device *hdev, struct hid_input *hi,
143 struct hid_field *field, struct hid_usage *usage,
144 unsigned long **bit, int *max)
145{
146 int ret = 0;
147
148 if (USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE == hdev->product)
149 ret = samsung_kbd_mouse_input_mapping(hdev,
150 hi, field, usage, bit, max);
151
152 return ret;
153}
154
155static int samsung_probe(struct hid_device *hdev,
156 const struct hid_device_id *id)
157{
158 int ret;
159 unsigned int cmask = HID_CONNECT_DEFAULT;
160
161 ret = hid_parse(hdev);
162 if (ret) {
163 hid_err(hdev, "parse failed\n");
164 goto err_free;
165 }
166
167 if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product) {
168 if (hdev->rsize == 184) {
169 /* disable hidinput, force hiddev */
170 cmask = (cmask & ~HID_CONNECT_HIDINPUT) |
171 HID_CONNECT_HIDDEV_FORCE;
172 }
173 }
174
175 ret = hid_hw_start(hdev, cmask);
176 if (ret) {
177 hid_err(hdev, "hw start failed\n");
178 goto err_free;
179 }
180
181 return 0;
182err_free:
183 return ret;
184}
185
186static const struct hid_device_id samsung_devices[] = {
187 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
188 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
189 { }
190};
191MODULE_DEVICE_TABLE(hid, samsung_devices);
192
193static struct hid_driver samsung_driver = {
194 .name = "samsung",
195 .id_table = samsung_devices,
196 .report_fixup = samsung_report_fixup,
197 .input_mapping = samsung_input_mapping,
198 .probe = samsung_probe,
199};
200
201static int __init samsung_init(void)
202{
203 return hid_register_driver(&samsung_driver);
204}
205
206static void __exit samsung_exit(void)
207{
208 hid_unregister_driver(&samsung_driver);
209}
210
211module_init(samsung_init);
212module_exit(samsung_exit);
213MODULE_LICENSE("GPL");