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1a3f83f6 JC |
1 | /* |
2 | * Plantronics USB HID Driver | |
3 | * | |
4 | * Copyright (c) 2014 JD Cole <jd.cole@plantronics.com> | |
67ab573f | 5 | * Copyright (c) 2015-2018 Terry Junge <terry.junge@plantronics.com> |
1a3f83f6 JC |
6 | */ |
7 | ||
8 | /* | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License as published by the Free | |
11 | * Software Foundation; either version 2 of the License, or (at your option) | |
12 | * any later version. | |
13 | */ | |
14 | ||
15 | #include "hid-ids.h" | |
16 | ||
17 | #include <linux/hid.h> | |
18 | #include <linux/module.h> | |
19 | ||
81bb773f TJ |
20 | #define PLT_HID_1_0_PAGE 0xffa00000 |
21 | #define PLT_HID_2_0_PAGE 0xffa20000 | |
22 | ||
23 | #define PLT_BASIC_TELEPHONY 0x0003 | |
24 | #define PLT_BASIC_EXCEPTION 0x0005 | |
25 | ||
26 | #define PLT_VOL_UP 0x00b1 | |
27 | #define PLT_VOL_DOWN 0x00b2 | |
28 | ||
29 | #define PLT1_VOL_UP (PLT_HID_1_0_PAGE | PLT_VOL_UP) | |
30 | #define PLT1_VOL_DOWN (PLT_HID_1_0_PAGE | PLT_VOL_DOWN) | |
31 | #define PLT2_VOL_UP (PLT_HID_2_0_PAGE | PLT_VOL_UP) | |
32 | #define PLT2_VOL_DOWN (PLT_HID_2_0_PAGE | PLT_VOL_DOWN) | |
33 | ||
34 | #define PLT_DA60 0xda60 | |
35 | #define PLT_BT300_MIN 0x0413 | |
36 | #define PLT_BT300_MAX 0x0418 | |
37 | ||
38 | ||
39 | #define PLT_ALLOW_CONSUMER (field->application == HID_CP_CONSUMERCONTROL && \ | |
40 | (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) | |
41 | ||
1a3f83f6 JC |
42 | static int plantronics_input_mapping(struct hid_device *hdev, |
43 | struct hid_input *hi, | |
44 | struct hid_field *field, | |
45 | struct hid_usage *usage, | |
46 | unsigned long **bit, int *max) | |
47 | { | |
81bb773f TJ |
48 | unsigned short mapped_key; |
49 | unsigned long plt_type = (unsigned long)hid_get_drvdata(hdev); | |
50 | ||
67ab573f TJ |
51 | /* special case for PTT products */ |
52 | if (field->application == HID_GD_JOYSTICK) | |
53 | goto defaulted; | |
54 | ||
81bb773f TJ |
55 | /* handle volume up/down mapping */ |
56 | /* non-standard types or multi-HID interfaces - plt_type is PID */ | |
57 | if (!(plt_type & HID_USAGE_PAGE)) { | |
58 | switch (plt_type) { | |
59 | case PLT_DA60: | |
60 | if (PLT_ALLOW_CONSUMER) | |
61 | goto defaulted; | |
62 | goto ignored; | |
63 | default: | |
64 | if (PLT_ALLOW_CONSUMER) | |
65 | goto defaulted; | |
66 | } | |
67 | } | |
68 | /* handle standard types - plt_type is 0xffa0uuuu or 0xffa2uuuu */ | |
69 | /* 'basic telephony compliant' - allow default consumer page map */ | |
70 | else if ((plt_type & HID_USAGE) >= PLT_BASIC_TELEPHONY && | |
71 | (plt_type & HID_USAGE) != PLT_BASIC_EXCEPTION) { | |
72 | if (PLT_ALLOW_CONSUMER) | |
73 | goto defaulted; | |
74 | } | |
75 | /* not 'basic telephony' - apply legacy mapping */ | |
76 | /* only map if the field is in the device's primary vendor page */ | |
77 | else if (!((field->application ^ plt_type) & HID_USAGE_PAGE)) { | |
78 | switch (usage->hid) { | |
79 | case PLT1_VOL_UP: | |
80 | case PLT2_VOL_UP: | |
81 | mapped_key = KEY_VOLUMEUP; | |
82 | goto mapped; | |
83 | case PLT1_VOL_DOWN: | |
84 | case PLT2_VOL_DOWN: | |
85 | mapped_key = KEY_VOLUMEDOWN; | |
86 | goto mapped; | |
87 | } | |
1a3f83f6 JC |
88 | } |
89 | ||
81bb773f TJ |
90 | /* |
91 | * Future mapping of call control or other usages, | |
92 | * if and when keys are defined would go here | |
93 | * otherwise, ignore everything else that was not mapped | |
94 | */ | |
1a3f83f6 | 95 | |
81bb773f | 96 | ignored: |
1a3f83f6 | 97 | return -1; |
81bb773f TJ |
98 | |
99 | defaulted: | |
100 | hid_dbg(hdev, "usage: %08x (appl: %08x) - defaulted\n", | |
101 | usage->hid, field->application); | |
102 | return 0; | |
103 | ||
104 | mapped: | |
105 | hid_map_usage_clear(hi, usage, bit, max, EV_KEY, mapped_key); | |
106 | hid_dbg(hdev, "usage: %08x (appl: %08x) - mapped to key %d\n", | |
107 | usage->hid, field->application, mapped_key); | |
108 | return 1; | |
109 | } | |
110 | ||
111 | static unsigned long plantronics_device_type(struct hid_device *hdev) | |
112 | { | |
113 | unsigned i, col_page; | |
114 | unsigned long plt_type = hdev->product; | |
115 | ||
116 | /* multi-HID interfaces? - plt_type is PID */ | |
117 | if (plt_type >= PLT_BT300_MIN && plt_type <= PLT_BT300_MAX) | |
118 | goto exit; | |
119 | ||
120 | /* determine primary vendor page */ | |
121 | for (i = 0; i < hdev->maxcollection; i++) { | |
122 | col_page = hdev->collection[i].usage & HID_USAGE_PAGE; | |
123 | if (col_page == PLT_HID_2_0_PAGE) { | |
124 | plt_type = hdev->collection[i].usage; | |
125 | break; | |
126 | } | |
127 | if (col_page == PLT_HID_1_0_PAGE) | |
128 | plt_type = hdev->collection[i].usage; | |
129 | } | |
130 | ||
131 | exit: | |
132 | hid_dbg(hdev, "plt_type decoded as: %08lx\n", plt_type); | |
133 | return plt_type; | |
134 | } | |
135 | ||
136 | static int plantronics_probe(struct hid_device *hdev, | |
137 | const struct hid_device_id *id) | |
138 | { | |
139 | int ret; | |
140 | ||
141 | ret = hid_parse(hdev); | |
142 | if (ret) { | |
143 | hid_err(hdev, "parse failed\n"); | |
144 | goto err; | |
145 | } | |
146 | ||
147 | hid_set_drvdata(hdev, (void *)plantronics_device_type(hdev)); | |
148 | ||
149 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | | |
150 | HID_CONNECT_HIDINPUT_FORCE | HID_CONNECT_HIDDEV_FORCE); | |
151 | if (ret) | |
152 | hid_err(hdev, "hw start failed\n"); | |
153 | ||
154 | err: | |
155 | return ret; | |
1a3f83f6 JC |
156 | } |
157 | ||
1a3f83f6 JC |
158 | static const struct hid_device_id plantronics_devices[] = { |
159 | { HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) }, | |
160 | { } | |
161 | }; | |
162 | MODULE_DEVICE_TABLE(hid, plantronics_devices); | |
163 | ||
164 | static struct hid_driver plantronics_driver = { | |
165 | .name = "plantronics", | |
166 | .id_table = plantronics_devices, | |
167 | .input_mapping = plantronics_input_mapping, | |
81bb773f | 168 | .probe = plantronics_probe, |
1a3f83f6 JC |
169 | }; |
170 | module_hid_driver(plantronics_driver); | |
171 | ||
172 | MODULE_AUTHOR("JD Cole <jd.cole@plantronics.com>"); | |
173 | MODULE_AUTHOR("Terry Junge <terry.junge@plantronics.com>"); | |
174 | MODULE_DESCRIPTION("Plantronics USB HID Driver"); | |
175 | MODULE_LICENSE("GPL"); |