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-rw-r--r--drivers/hid/Kconfig6
-rw-r--r--drivers/hid/Makefile1
-rw-r--r--drivers/hid/hid-core.c1
-rw-r--r--drivers/hid/hid-ids.h3
-rw-r--r--drivers/hid/hid-stantum.c283
5 files changed, 294 insertions, 0 deletions
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 0c8ce3a68d27..84272c690310 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -247,6 +247,12 @@ config HID_SONY
247 ---help--- 247 ---help---
248 Support for Sony PS3 controller. 248 Support for Sony PS3 controller.
249 249
250config HID_STANTUM
251 tristate "Stantum" if EMBEDDED
252 depends on USB_HID
253 ---help---
254 Support for Stantum multitouch panel.
255
250config HID_SUNPLUS 256config HID_SUNPLUS
251 tristate "Sunplus" if EMBEDDED 257 tristate "Sunplus" if EMBEDDED
252 depends on USB_HID 258 depends on USB_HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 1bdfb97910f1..f8dc5bac79bd 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -40,6 +40,7 @@ obj-$(CONFIG_HID_PETALYNX) += hid-petalynx.o
40obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o 40obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o
41obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o 41obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o
42obj-$(CONFIG_HID_SONY) += hid-sony.o 42obj-$(CONFIG_HID_SONY) += hid-sony.o
43obj-$(CONFIG_HID_STANTUM) += hid-stantum.o
43obj-$(CONFIG_HID_SUNPLUS) += hid-sunplus.o 44obj-$(CONFIG_HID_SUNPLUS) += hid-sunplus.o
44obj-$(CONFIG_HID_GREENASIA) += hid-gaff.o 45obj-$(CONFIG_HID_GREENASIA) += hid-gaff.o
45obj-$(CONFIG_HID_THRUSTMASTER) += hid-tmff.o 46obj-$(CONFIG_HID_THRUSTMASTER) += hid-tmff.o
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 70c25a056205..6462c923805f 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1339,6 +1339,7 @@ static const struct hid_device_id hid_blacklist[] = {
1339 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) }, 1339 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1340 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 1340 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1341 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) }, 1341 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1342 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
1342 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) }, 1343 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1343 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) }, 1344 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1344 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) }, 1345 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 3d55f983dbaf..07e056b0e188 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -393,6 +393,9 @@
393#define USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST 0x0034 393#define USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST 0x0034
394#define USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST 0x0046 394#define USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST 0x0046
395 395
396#define USB_VENDOR_ID_STANTUM 0x1f87
397#define USB_DEVICE_ID_MTP 0x0002
398
396#define USB_VENDOR_ID_SUN 0x0430 399#define USB_VENDOR_ID_SUN 0x0430
397#define USB_DEVICE_ID_RARITAN_KVM_DONGLE 0xcdab 400#define USB_DEVICE_ID_RARITAN_KVM_DONGLE 0xcdab
398 401
diff --git a/drivers/hid/hid-stantum.c b/drivers/hid/hid-stantum.c
new file mode 100644
index 000000000000..add965dab932
--- /dev/null
+++ b/drivers/hid/hid-stantum.c
@@ -0,0 +1,283 @@
1/*
2 * HID driver for Stantum multitouch panels
3 *
4 * Copyright (c) 2009 Stephane Chatty <chatty@enac.fr>
5 *
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 <linux/device.h>
16#include <linux/hid.h>
17#include <linux/module.h>
18
19MODULE_VERSION("0.6");
20MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
21MODULE_DESCRIPTION("Stantum HID multitouch panels");
22MODULE_LICENSE("GPL");
23
24#include "hid-ids.h"
25
26struct stantum_data {
27 __s32 x, y, z, w, h; /* x, y, pressure, width, height */
28 __u16 id; /* touch id */
29 bool valid; /* valid finger data, or just placeholder? */
30 bool first; /* first finger in the HID packet? */
31 bool activity; /* at least one active finger so far? */
32};
33
34static int stantum_input_mapping(struct hid_device *hdev, struct hid_input *hi,
35 struct hid_field *field, struct hid_usage *usage,
36 unsigned long **bit, int *max)
37{
38 switch (usage->hid & HID_USAGE_PAGE) {
39
40 case HID_UP_GENDESK:
41 switch (usage->hid) {
42 case HID_GD_X:
43 hid_map_usage(hi, usage, bit, max,
44 EV_ABS, ABS_MT_POSITION_X);
45 /* touchscreen emulation */
46 input_set_abs_params(hi->input, ABS_X,
47 field->logical_minimum,
48 field->logical_maximum, 0, 0);
49 return 1;
50 case HID_GD_Y:
51 hid_map_usage(hi, usage, bit, max,
52 EV_ABS, ABS_MT_POSITION_Y);
53 /* touchscreen emulation */
54 input_set_abs_params(hi->input, ABS_Y,
55 field->logical_minimum,
56 field->logical_maximum, 0, 0);
57 return 1;
58 }
59 return 0;
60
61 case HID_UP_DIGITIZER:
62 switch (usage->hid) {
63 case HID_DG_INRANGE:
64 case HID_DG_CONFIDENCE:
65 case HID_DG_INPUTMODE:
66 case HID_DG_DEVICEINDEX:
67 case HID_DG_CONTACTCOUNT:
68 case HID_DG_CONTACTMAX:
69 case HID_DG_TIPPRESSURE:
70 return -1;
71
72 case HID_DG_TIPSWITCH:
73 /* touchscreen emulation */
74 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
75 return 1;
76
77 case HID_DG_WIDTH:
78 hid_map_usage(hi, usage, bit, max,
79 EV_ABS, ABS_MT_TOUCH_MAJOR);
80 return 1;
81 case HID_DG_HEIGHT:
82 hid_map_usage(hi, usage, bit, max,
83 EV_ABS, ABS_MT_TOUCH_MINOR);
84 input_set_abs_params(hi->input, ABS_MT_ORIENTATION,
85 1, 1, 0, 0);
86 return 1;
87 case HID_DG_CONTACTID:
88 hid_map_usage(hi, usage, bit, max,
89 EV_ABS, ABS_MT_TRACKING_ID);
90 return 1;
91
92 }
93 return 0;
94
95 case 0xff000000:
96 /* no input-oriented meaning */
97 return -1;
98 }
99
100 return 0;
101}
102
103static int stantum_input_mapped(struct hid_device *hdev, struct hid_input *hi,
104 struct hid_field *field, struct hid_usage *usage,
105 unsigned long **bit, int *max)
106{
107 if (usage->type == EV_KEY || usage->type == EV_ABS)
108 clear_bit(usage->code, *bit);
109
110 return 0;
111}
112
113/*
114 * this function is called when a whole finger has been parsed,
115 * so that it can decide what to send to the input layer.
116 */
117static void stantum_filter_event(struct stantum_data *sd,
118 struct input_dev *input)
119{
120 bool wide;
121
122 if (!sd->valid) {
123 /*
124 * touchscreen emulation: if the first finger is not valid and
125 * there previously was finger activity, this is a release
126 */
127 if (sd->first && sd->activity) {
128 input_event(input, EV_KEY, BTN_TOUCH, 0);
129 sd->activity = false;
130 }
131 return;
132 }
133
134 input_event(input, EV_ABS, ABS_MT_TRACKING_ID, sd->id);
135 input_event(input, EV_ABS, ABS_MT_POSITION_X, sd->x);
136 input_event(input, EV_ABS, ABS_MT_POSITION_Y, sd->y);
137
138 wide = (sd->w > sd->h);
139 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
140 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, wide ? sd->w : sd->h);
141 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, wide ? sd->h : sd->w);
142
143#if 0
144 /* MT_PRESSURE does not exist yet */
145 input_event(input, EV_ABS, ABS_MT_PRESSURE, sd->z);
146#endif
147
148 input_mt_sync(input);
149 sd->valid = false;
150 sd->first = false;
151
152 /* touchscreen emulation */
153 if (sd->first) {
154 if (!sd->activity) {
155 input_event(input, EV_KEY, BTN_TOUCH, 1);
156 sd->activity = true;
157 }
158 input_event(input, EV_ABS, ABS_X, sd->x);
159 input_event(input, EV_ABS, ABS_Y, sd->y);
160 }
161}
162
163
164static int stantum_event(struct hid_device *hid, struct hid_field *field,
165 struct hid_usage *usage, __s32 value)
166{
167 struct stantum_data *sd = hid_get_drvdata(hid);
168
169 if (hid->claimed & HID_CLAIMED_INPUT) {
170 struct input_dev *input = field->hidinput->input;
171
172 switch (usage->hid) {
173 case HID_DG_INRANGE:
174 /* this is the last field in a finger */
175 stantum_filter_event(sd, input);
176 break;
177 case HID_DG_WIDTH:
178 sd->w = value;
179 break;
180 case HID_DG_HEIGHT:
181 sd->h = value;
182 break;
183 case HID_GD_X:
184 sd->x = value;
185 break;
186 case HID_GD_Y:
187 sd->y = value;
188 break;
189 case HID_DG_TIPPRESSURE:
190 sd->z = value;
191 break;
192 case HID_DG_CONTACTID:
193 sd->id = value;
194 break;
195 case HID_DG_CONFIDENCE:
196 sd->valid = !!value;
197 break;
198 case 0xff000002:
199 /* this comes only before the first finger */
200 sd->first = true;
201 break;
202
203 default:
204 /* ignore the others */
205 return 1;
206 }
207 }
208
209 /* we have handled the hidinput part, now remains hiddev */
210 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
211 hid->hiddev_hid_event(hid, field, usage, value);
212
213 return 1;
214}
215
216static int stantum_probe(struct hid_device *hdev,
217 const struct hid_device_id *id)
218{
219 int ret;
220 struct stantum_data *sd;
221
222 sd = kmalloc(sizeof(struct stantum_data), GFP_KERNEL);
223 if (!sd) {
224 dev_err(&hdev->dev, "cannot allocate Stantum data\n");
225 return -ENOMEM;
226 }
227 sd->valid = false;
228 sd->first = false;
229 sd->activity = false;
230 hid_set_drvdata(hdev, sd);
231
232 ret = hid_parse(hdev);
233 if (!ret)
234 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
235
236 if (ret)
237 kfree(sd);
238
239 return ret;
240}
241
242static void stantum_remove(struct hid_device *hdev)
243{
244 hid_hw_stop(hdev);
245 kfree(hid_get_drvdata(hdev));
246 hid_set_drvdata(hdev, NULL);
247}
248
249static const struct hid_device_id stantum_devices[] = {
250 { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
251 { }
252};
253MODULE_DEVICE_TABLE(hid, stantum_devices);
254
255static const struct hid_usage_id stantum_grabbed_usages[] = {
256 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
257 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
258};
259
260static struct hid_driver stantum_driver = {
261 .name = "stantum",
262 .id_table = stantum_devices,
263 .probe = stantum_probe,
264 .remove = stantum_remove,
265 .input_mapping = stantum_input_mapping,
266 .input_mapped = stantum_input_mapped,
267 .usage_table = stantum_grabbed_usages,
268 .event = stantum_event,
269};
270
271static int __init stantum_init(void)
272{
273 return hid_register_driver(&stantum_driver);
274}
275
276static void __exit stantum_exit(void)
277{
278 hid_unregister_driver(&stantum_driver);
279}
280
281module_init(stantum_init);
282module_exit(stantum_exit);
283