hid-samsung.c (d9c5841e22231e4e49fd0a1004164e6fce59b7a6) hid-samsung.c (b355850ba383232d4e0e357c1cda8cb7bfcc60bc)
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
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 *
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>
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>
20#include <linux/hid.h>
21#include <linux/module.h>
22
23#include "hid-ids.h"
24
25/*
33#include <linux/hid.h>
34#include <linux/module.h>
35
36#include "hid-ids.h"
37
38/*
26 * Samsung IrDA remote controller (reports as Cypress USB Mouse).
27 *
28 * There are several variants for 0419:0001:
29 *
30 * 1. 184 byte report descriptor
31 * Vendor specific report #4 has a size of 48 bit,
32 * and therefore is not accepted when inspecting the descriptors.
33 * As a workaround we reinterpret the report as:
34 * Variable type, count 6, size 8 bit, log. maximum 255
35 * The burden to reconstruct the data is moved into user space.
36 *
37 * 2. 203 byte report descriptor
38 * Report #4 has an array field with logical range 0..18 instead of 1..15.
39 *
40 * 3. 135 byte report descriptor
41 * Report #4 has an array field with logical range 0..17 instead of 1..14.
42 *
43 * 4. 171 byte report descriptor
44 * Report #3 has an array field with logical range 0..1 instead of 1..3.
45 */
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 */
46static inline void samsung_dev_trace(struct hid_device *hdev,
57static inline void samsung_irda_dev_trace(struct hid_device *hdev,
47 unsigned int rsize)
48{
49 dev_info(&hdev->dev, "fixing up Samsung IrDA %d byte report "
50 "descriptor\n", rsize);
51}
52
58 unsigned int rsize)
59{
60 dev_info(&hdev->dev, "fixing up Samsung IrDA %d byte report "
61 "descriptor\n", rsize);
62}
63
53static void samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc,
64static void samsung_irda_report_fixup(struct hid_device *hdev, __u8 *rdesc,
54 unsigned int rsize)
55{
56 if (rsize == 184 && rdesc[175] == 0x25 && rdesc[176] == 0x40 &&
57 rdesc[177] == 0x75 && rdesc[178] == 0x30 &&
58 rdesc[179] == 0x95 && rdesc[180] == 0x01 &&
59 rdesc[182] == 0x40) {
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) {
60 samsung_dev_trace(hdev, 184);
71 samsung_irda_dev_trace(hdev, 184);
61 rdesc[176] = 0xff;
62 rdesc[178] = 0x08;
63 rdesc[180] = 0x06;
64 rdesc[182] = 0x42;
65 } else
66 if (rsize == 203 && rdesc[192] == 0x15 && rdesc[193] == 0x0 &&
67 rdesc[194] == 0x25 && rdesc[195] == 0x12) {
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) {
68 samsung_dev_trace(hdev, 203);
79 samsung_irda_dev_trace(hdev, 203);
69 rdesc[193] = 0x1;
70 rdesc[195] = 0xf;
71 } else
72 if (rsize == 135 && rdesc[124] == 0x15 && rdesc[125] == 0x0 &&
73 rdesc[126] == 0x25 && rdesc[127] == 0x11) {
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) {
74 samsung_dev_trace(hdev, 135);
85 samsung_irda_dev_trace(hdev, 135);
75 rdesc[125] = 0x1;
76 rdesc[127] = 0xe;
77 } else
78 if (rsize == 171 && rdesc[160] == 0x15 && rdesc[161] == 0x0 &&
79 rdesc[162] == 0x25 && rdesc[163] == 0x01) {
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) {
80 samsung_dev_trace(hdev, 171);
91 samsung_irda_dev_trace(hdev, 171);
81 rdesc[161] = 0x1;
82 rdesc[163] = 0x3;
83 }
84}
85
92 rdesc[161] = 0x1;
93 rdesc[163] = 0x3;
94 }
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 0x0b5: samsung_kbd_mouse_map_key_clear(KEY_NEXTSONG); break;
116 case 0x0b6: samsung_kbd_mouse_map_key_clear(KEY_PREVIOUSSONG); break;
117 case 0x0b7: samsung_kbd_mouse_map_key_clear(KEY_STOPCD); break;
118 case 0x0cd: samsung_kbd_mouse_map_key_clear(KEY_PLAYPAUSE); break;
119 case 0x0e2: samsung_kbd_mouse_map_key_clear(KEY_MUTE); break;
120 case 0x0e9: samsung_kbd_mouse_map_key_clear(KEY_VOLUMEUP); break;
121 case 0x0ea: samsung_kbd_mouse_map_key_clear(KEY_VOLUMEDOWN); break;
122 case 0x183: samsung_kbd_mouse_map_key_clear(KEY_MEDIA); break;
123 case 0x195: samsung_kbd_mouse_map_key_clear(KEY_EMAIL); break;
124 case 0x196: samsung_kbd_mouse_map_key_clear(KEY_CALC); break;
125 case 0x197: samsung_kbd_mouse_map_key_clear(KEY_COMPUTER); break;
126 case 0x22b: samsung_kbd_mouse_map_key_clear(KEY_SEARCH); break;
127 case 0x22c: samsung_kbd_mouse_map_key_clear(KEY_WWW); break;
128 case 0x22d: samsung_kbd_mouse_map_key_clear(KEY_BACK); break;
129 case 0x22e: samsung_kbd_mouse_map_key_clear(KEY_FORWARD); break;
130 case 0x22f: samsung_kbd_mouse_map_key_clear(KEY_FAVORITES); break;
131 case 0x230: samsung_kbd_mouse_map_key_clear(KEY_REFRESH); break;
132 case 0x231: samsung_kbd_mouse_map_key_clear(KEY_STOP); break;
133 default:
134 return 0;
135 }
136
137 return 1;
138}
139
140static void samsung_report_fixup(struct hid_device *hdev, __u8 *rdesc,
141 unsigned int rsize)
142{
143 if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product)
144 samsung_irda_report_fixup(hdev, rdesc, rsize);
145}
146
147static int samsung_input_mapping(struct hid_device *hdev, struct hid_input *hi,
148 struct hid_field *field, struct hid_usage *usage,
149 unsigned long **bit, int *max)
150{
151 int ret = 0;
152
153 if (USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE == hdev->product)
154 ret = samsung_kbd_mouse_input_mapping(hdev,
155 hi, field, usage, bit, max);
156
157 return ret;
158}
159
86static int samsung_probe(struct hid_device *hdev,
87 const struct hid_device_id *id)
88{
89 int ret;
90 unsigned int cmask = HID_CONNECT_DEFAULT;
91
92 ret = hid_parse(hdev);
93 if (ret) {
94 dev_err(&hdev->dev, "parse failed\n");
95 goto err_free;
96 }
97
160static int samsung_probe(struct hid_device *hdev,
161 const struct hid_device_id *id)
162{
163 int ret;
164 unsigned int cmask = HID_CONNECT_DEFAULT;
165
166 ret = hid_parse(hdev);
167 if (ret) {
168 dev_err(&hdev->dev, "parse failed\n");
169 goto err_free;
170 }
171
98 if (hdev->rsize == 184) {
99 /* disable hidinput, force hiddev */
100 cmask = (cmask & ~HID_CONNECT_HIDINPUT) |
101 HID_CONNECT_HIDDEV_FORCE;
172 if (USB_DEVICE_ID_SAMSUNG_IR_REMOTE == hdev->product) {
173 if (hdev->rsize == 184) {
174 /* disable hidinput, force hiddev */
175 cmask = (cmask & ~HID_CONNECT_HIDINPUT) |
176 HID_CONNECT_HIDDEV_FORCE;
177 }
102 }
103
104 ret = hid_hw_start(hdev, cmask);
105 if (ret) {
106 dev_err(&hdev->dev, "hw start failed\n");
107 goto err_free;
108 }
109
110 return 0;
111err_free:
112 return ret;
113}
114
115static const struct hid_device_id samsung_devices[] = {
116 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
178 }
179
180 ret = hid_hw_start(hdev, cmask);
181 if (ret) {
182 dev_err(&hdev->dev, "hw start failed\n");
183 goto err_free;
184 }
185
186 return 0;
187err_free:
188 return ret;
189}
190
191static const struct hid_device_id samsung_devices[] = {
192 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
193 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
117 { }
118};
119MODULE_DEVICE_TABLE(hid, samsung_devices);
120
121static struct hid_driver samsung_driver = {
122 .name = "samsung",
123 .id_table = samsung_devices,
124 .report_fixup = samsung_report_fixup,
194 { }
195};
196MODULE_DEVICE_TABLE(hid, samsung_devices);
197
198static struct hid_driver samsung_driver = {
199 .name = "samsung",
200 .id_table = samsung_devices,
201 .report_fixup = samsung_report_fixup,
202 .input_mapping = samsung_input_mapping,
125 .probe = samsung_probe,
126};
127
128static int __init samsung_init(void)
129{
130 return hid_register_driver(&samsung_driver);
131}
132
133static void __exit samsung_exit(void)
134{
135 hid_unregister_driver(&samsung_driver);
136}
137
138module_init(samsung_init);
139module_exit(samsung_exit);
140MODULE_LICENSE("GPL");
203 .probe = samsung_probe,
204};
205
206static int __init samsung_init(void)
207{
208 return hid_register_driver(&samsung_driver);
209}
210
211static void __exit samsung_exit(void)
212{
213 hid_unregister_driver(&samsung_driver);
214}
215
216module_init(samsung_init);
217module_exit(samsung_exit);
218MODULE_LICENSE("GPL");