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bba5394a XW |
1 | /* |
2 | * USB Hanwang tablet support | |
3 | * | |
4 | * Copyright (c) 2010 Xing Wei <weixing@hanwang.com.cn> | |
5 | * | |
6 | */ | |
7 | ||
8 | /* | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | * | |
23 | */ | |
24 | ||
25 | #include <linux/types.h> | |
26 | #include <linux/kernel.h> | |
27 | #include <linux/slab.h> | |
28 | #include <linux/module.h> | |
bba5394a XW |
29 | #include <linux/usb/input.h> |
30 | ||
31 | #define DRIVER_AUTHOR "Xing Wei <weixing@hanwang.com.cn>" | |
32 | #define DRIVER_DESC "USB Hanwang tablet driver" | |
33 | #define DRIVER_LICENSE "GPL" | |
34 | ||
35 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
36 | MODULE_DESCRIPTION(DRIVER_DESC); | |
37 | MODULE_LICENSE(DRIVER_LICENSE); | |
38 | ||
39 | #define USB_VENDOR_ID_HANWANG 0x0b57 | |
40 | #define HANWANG_TABLET_INT_CLASS 0x0003 | |
41 | #define HANWANG_TABLET_INT_SUB_CLASS 0x0001 | |
42 | #define HANWANG_TABLET_INT_PROTOCOL 0x0002 | |
43 | ||
727eeb7d | 44 | #define ART_MASTER_PKGLEN_MAX 10 |
bba5394a | 45 | |
24dd3b58 XW |
46 | /* device IDs */ |
47 | #define STYLUS_DEVICE_ID 0x02 | |
48 | #define TOUCH_DEVICE_ID 0x03 | |
49 | #define CURSOR_DEVICE_ID 0x06 | |
50 | #define ERASER_DEVICE_ID 0x0A | |
51 | #define PAD_DEVICE_ID 0x0F | |
52 | ||
bba5394a XW |
53 | /* match vendor and interface info */ |
54 | #define HANWANG_TABLET_DEVICE(vend, cl, sc, pr) \ | |
55 | .match_flags = USB_DEVICE_ID_MATCH_VENDOR \ | |
56 | | USB_DEVICE_ID_MATCH_INT_INFO, \ | |
57 | .idVendor = (vend), \ | |
58 | .bInterfaceClass = (cl), \ | |
59 | .bInterfaceSubClass = (sc), \ | |
60 | .bInterfaceProtocol = (pr) | |
61 | ||
727eeb7d XW |
62 | enum hanwang_tablet_type { |
63 | HANWANG_ART_MASTER_III, | |
64 | HANWANG_ART_MASTER_HD, | |
8a90c034 | 65 | HANWANG_ART_MASTER_II, |
727eeb7d XW |
66 | }; |
67 | ||
bba5394a XW |
68 | struct hanwang { |
69 | unsigned char *data; | |
70 | dma_addr_t data_dma; | |
71 | struct input_dev *dev; | |
72 | struct usb_device *usbdev; | |
73 | struct urb *irq; | |
74 | const struct hanwang_features *features; | |
75 | unsigned int current_tool; | |
24dd3b58 | 76 | unsigned int current_id; |
bba5394a XW |
77 | char name[64]; |
78 | char phys[32]; | |
79 | }; | |
80 | ||
81 | struct hanwang_features { | |
82 | unsigned short pid; | |
83 | char *name; | |
727eeb7d | 84 | enum hanwang_tablet_type type; |
bba5394a XW |
85 | int pkg_len; |
86 | int max_x; | |
87 | int max_y; | |
88 | int max_tilt_x; | |
89 | int max_tilt_y; | |
90 | int max_pressure; | |
91 | }; | |
92 | ||
93 | static const struct hanwang_features features_array[] = { | |
727eeb7d XW |
94 | { 0x8528, "Hanwang Art Master III 0906", HANWANG_ART_MASTER_III, |
95 | ART_MASTER_PKGLEN_MAX, 0x5757, 0x3692, 0x3f, 0x7f, 2048 }, | |
96 | { 0x8529, "Hanwang Art Master III 0604", HANWANG_ART_MASTER_III, | |
97 | ART_MASTER_PKGLEN_MAX, 0x3d84, 0x2672, 0x3f, 0x7f, 2048 }, | |
98 | { 0x852a, "Hanwang Art Master III 1308", HANWANG_ART_MASTER_III, | |
99 | ART_MASTER_PKGLEN_MAX, 0x7f00, 0x4f60, 0x3f, 0x7f, 2048 }, | |
100 | { 0x8401, "Hanwang Art Master HD 5012", HANWANG_ART_MASTER_HD, | |
101 | ART_MASTER_PKGLEN_MAX, 0x678e, 0x4150, 0x3f, 0x7f, 1024 }, | |
8a90c034 | 102 | { 0x8503, "Hanwang Art Master II", HANWANG_ART_MASTER_II, |
103 | ART_MASTER_PKGLEN_MAX, 0x27de, 0x1cfe, 0x3f, 0x7f, 1024 }, | |
bba5394a XW |
104 | }; |
105 | ||
106 | static const int hw_eventtypes[] = { | |
24dd3b58 | 107 | EV_KEY, EV_ABS, EV_MSC, |
bba5394a XW |
108 | }; |
109 | ||
110 | static const int hw_absevents[] = { | |
24dd3b58 | 111 | ABS_X, ABS_Y, ABS_TILT_X, ABS_TILT_Y, ABS_WHEEL, |
727eeb7d | 112 | ABS_RX, ABS_RY, ABS_PRESSURE, ABS_MISC, |
bba5394a XW |
113 | }; |
114 | ||
115 | static const int hw_btnevents[] = { | |
24dd3b58 XW |
116 | BTN_STYLUS, BTN_STYLUS2, BTN_TOOL_PEN, BTN_TOOL_RUBBER, |
117 | BTN_TOOL_MOUSE, BTN_TOOL_FINGER, | |
118 | BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8, | |
119 | }; | |
120 | ||
121 | static const int hw_mscevents[] = { | |
122 | MSC_SERIAL, | |
bba5394a XW |
123 | }; |
124 | ||
125 | static void hanwang_parse_packet(struct hanwang *hanwang) | |
126 | { | |
127 | unsigned char *data = hanwang->data; | |
128 | struct input_dev *input_dev = hanwang->dev; | |
129 | struct usb_device *dev = hanwang->usbdev; | |
727eeb7d | 130 | enum hanwang_tablet_type type = hanwang->features->type; |
bba5394a | 131 | int i; |
8a90c034 | 132 | u16 p; |
133 | ||
134 | if (type == HANWANG_ART_MASTER_II) { | |
135 | hanwang->current_tool = BTN_TOOL_PEN; | |
136 | hanwang->current_id = STYLUS_DEVICE_ID; | |
137 | } | |
bba5394a XW |
138 | |
139 | switch (data[0]) { | |
140 | case 0x02: /* data packet */ | |
141 | switch (data[1]) { | |
142 | case 0x80: /* tool prox out */ | |
8a90c034 | 143 | if (type != HANWANG_ART_MASTER_II) { |
144 | hanwang->current_id = 0; | |
145 | input_report_key(input_dev, | |
146 | hanwang->current_tool, 0); | |
147 | } | |
148 | break; | |
149 | ||
150 | case 0x00: /* artmaster ii pen leave */ | |
151 | if (type == HANWANG_ART_MASTER_II) { | |
152 | hanwang->current_id = 0; | |
153 | input_report_key(input_dev, | |
154 | hanwang->current_tool, 0); | |
155 | } | |
bba5394a XW |
156 | break; |
157 | ||
158 | case 0xc2: /* first time tool prox in */ | |
159 | switch (data[3] & 0xf0) { | |
727eeb7d XW |
160 | case 0x20: /* art_master III */ |
161 | case 0x30: /* art_master_HD */ | |
24dd3b58 | 162 | hanwang->current_id = STYLUS_DEVICE_ID; |
bba5394a XW |
163 | hanwang->current_tool = BTN_TOOL_PEN; |
164 | input_report_key(input_dev, BTN_TOOL_PEN, 1); | |
165 | break; | |
727eeb7d XW |
166 | case 0xa0: /* art_master III */ |
167 | case 0xb0: /* art_master_HD */ | |
24dd3b58 | 168 | hanwang->current_id = ERASER_DEVICE_ID; |
bba5394a XW |
169 | hanwang->current_tool = BTN_TOOL_RUBBER; |
170 | input_report_key(input_dev, BTN_TOOL_RUBBER, 1); | |
171 | break; | |
172 | default: | |
24dd3b58 | 173 | hanwang->current_id = 0; |
bba5394a | 174 | dev_dbg(&dev->dev, |
8a90c034 | 175 | "unknown tablet tool %02x\n", data[0]); |
bba5394a XW |
176 | break; |
177 | } | |
178 | break; | |
179 | ||
180 | default: /* tool data packet */ | |
727eeb7d XW |
181 | switch (type) { |
182 | case HANWANG_ART_MASTER_III: | |
183 | p = (data[6] << 3) | | |
184 | ((data[7] & 0xc0) >> 5) | | |
185 | (data[1] & 0x01); | |
186 | break; | |
187 | ||
188 | case HANWANG_ART_MASTER_HD: | |
8a90c034 | 189 | case HANWANG_ART_MASTER_II: |
727eeb7d XW |
190 | p = (data[7] >> 6) | (data[6] << 2); |
191 | break; | |
192 | ||
193 | default: | |
194 | p = 0; | |
195 | break; | |
196 | } | |
197 | ||
bba5394a | 198 | input_report_abs(input_dev, ABS_X, |
8a90c034 | 199 | be16_to_cpup((__be16 *)&data[2])); |
bba5394a | 200 | input_report_abs(input_dev, ABS_Y, |
8a90c034 | 201 | be16_to_cpup((__be16 *)&data[4])); |
202 | input_report_abs(input_dev, ABS_PRESSURE, p); | |
bba5394a XW |
203 | input_report_abs(input_dev, ABS_TILT_X, data[7] & 0x3f); |
204 | input_report_abs(input_dev, ABS_TILT_Y, data[8] & 0x7f); | |
205 | input_report_key(input_dev, BTN_STYLUS, data[1] & 0x02); | |
8a90c034 | 206 | |
207 | if (type != HANWANG_ART_MASTER_II) | |
208 | input_report_key(input_dev, BTN_STYLUS2, | |
209 | data[1] & 0x04); | |
210 | else | |
211 | input_report_key(input_dev, BTN_TOOL_PEN, 1); | |
212 | ||
bba5394a XW |
213 | break; |
214 | } | |
8a90c034 | 215 | |
24dd3b58 XW |
216 | input_report_abs(input_dev, ABS_MISC, hanwang->current_id); |
217 | input_event(input_dev, EV_MSC, MSC_SERIAL, | |
218 | hanwang->features->pid); | |
bba5394a XW |
219 | break; |
220 | ||
221 | case 0x0c: | |
222 | /* roll wheel */ | |
24dd3b58 | 223 | hanwang->current_id = PAD_DEVICE_ID; |
727eeb7d XW |
224 | |
225 | switch (type) { | |
226 | case HANWANG_ART_MASTER_III: | |
8a90c034 | 227 | input_report_key(input_dev, BTN_TOOL_FINGER, |
228 | data[1] || data[2] || data[3]); | |
727eeb7d XW |
229 | input_report_abs(input_dev, ABS_WHEEL, data[1]); |
230 | input_report_key(input_dev, BTN_0, data[2]); | |
231 | for (i = 0; i < 8; i++) | |
232 | input_report_key(input_dev, | |
bba5394a | 233 | BTN_1 + i, data[3] & (1 << i)); |
727eeb7d XW |
234 | break; |
235 | ||
236 | case HANWANG_ART_MASTER_HD: | |
237 | input_report_key(input_dev, BTN_TOOL_FINGER, data[1] || | |
238 | data[2] || data[3] || data[4] || | |
239 | data[5] || data[6]); | |
240 | input_report_abs(input_dev, ABS_RX, | |
241 | ((data[1] & 0x1f) << 8) | data[2]); | |
242 | input_report_abs(input_dev, ABS_RY, | |
243 | ((data[3] & 0x1f) << 8) | data[4]); | |
244 | input_report_key(input_dev, BTN_0, data[5] & 0x01); | |
245 | for (i = 0; i < 4; i++) { | |
246 | input_report_key(input_dev, | |
247 | BTN_1 + i, data[5] & (1 << i)); | |
248 | input_report_key(input_dev, | |
249 | BTN_5 + i, data[6] & (1 << i)); | |
250 | } | |
251 | break; | |
8a90c034 | 252 | |
253 | case HANWANG_ART_MASTER_II: | |
254 | dev_dbg(&dev->dev, "error packet %02x\n", data[0]); | |
255 | return; | |
727eeb7d XW |
256 | } |
257 | ||
24dd3b58 XW |
258 | input_report_abs(input_dev, ABS_MISC, hanwang->current_id); |
259 | input_event(input_dev, EV_MSC, MSC_SERIAL, 0xffffffff); | |
bba5394a XW |
260 | break; |
261 | ||
262 | default: | |
8a90c034 | 263 | dev_dbg(&dev->dev, "error packet %02x\n", data[0]); |
bba5394a XW |
264 | break; |
265 | } | |
266 | ||
267 | input_sync(input_dev); | |
268 | } | |
269 | ||
270 | static void hanwang_irq(struct urb *urb) | |
271 | { | |
272 | struct hanwang *hanwang = urb->context; | |
273 | struct usb_device *dev = hanwang->usbdev; | |
274 | int retval; | |
275 | ||
276 | switch (urb->status) { | |
277 | case 0: | |
278 | /* success */; | |
279 | hanwang_parse_packet(hanwang); | |
280 | break; | |
281 | case -ECONNRESET: | |
282 | case -ENOENT: | |
283 | case -ESHUTDOWN: | |
284 | /* this urb is terminated, clean up */ | |
285 | dev_err(&dev->dev, "%s - urb shutting down with status: %d", | |
286 | __func__, urb->status); | |
287 | return; | |
288 | default: | |
289 | dev_err(&dev->dev, "%s - nonzero urb status received: %d", | |
290 | __func__, urb->status); | |
291 | break; | |
292 | } | |
293 | ||
294 | retval = usb_submit_urb(urb, GFP_ATOMIC); | |
295 | if (retval) | |
296 | dev_err(&dev->dev, "%s - usb_submit_urb failed with result %d", | |
297 | __func__, retval); | |
298 | } | |
299 | ||
300 | static int hanwang_open(struct input_dev *dev) | |
301 | { | |
302 | struct hanwang *hanwang = input_get_drvdata(dev); | |
303 | ||
304 | hanwang->irq->dev = hanwang->usbdev; | |
305 | if (usb_submit_urb(hanwang->irq, GFP_KERNEL)) | |
306 | return -EIO; | |
307 | ||
308 | return 0; | |
309 | } | |
310 | ||
311 | static void hanwang_close(struct input_dev *dev) | |
312 | { | |
313 | struct hanwang *hanwang = input_get_drvdata(dev); | |
314 | ||
315 | usb_kill_urb(hanwang->irq); | |
316 | } | |
317 | ||
318 | static bool get_features(struct usb_device *dev, struct hanwang *hanwang) | |
319 | { | |
320 | int i; | |
321 | ||
322 | for (i = 0; i < ARRAY_SIZE(features_array); i++) { | |
323 | if (le16_to_cpu(dev->descriptor.idProduct) == | |
324 | features_array[i].pid) { | |
325 | hanwang->features = &features_array[i]; | |
326 | return true; | |
327 | } | |
328 | } | |
329 | ||
330 | return false; | |
331 | } | |
332 | ||
333 | ||
334 | static int hanwang_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
335 | { | |
336 | struct usb_device *dev = interface_to_usbdev(intf); | |
337 | struct usb_endpoint_descriptor *endpoint; | |
338 | struct hanwang *hanwang; | |
339 | struct input_dev *input_dev; | |
340 | int error; | |
341 | int i; | |
342 | ||
ba340d7b JH |
343 | if (intf->cur_altsetting->desc.bNumEndpoints < 1) |
344 | return -ENODEV; | |
345 | ||
bba5394a XW |
346 | hanwang = kzalloc(sizeof(struct hanwang), GFP_KERNEL); |
347 | input_dev = input_allocate_device(); | |
348 | if (!hanwang || !input_dev) { | |
349 | error = -ENOMEM; | |
350 | goto fail1; | |
351 | } | |
352 | ||
353 | if (!get_features(dev, hanwang)) { | |
354 | error = -ENXIO; | |
355 | goto fail1; | |
356 | } | |
357 | ||
358 | hanwang->data = usb_alloc_coherent(dev, hanwang->features->pkg_len, | |
359 | GFP_KERNEL, &hanwang->data_dma); | |
360 | if (!hanwang->data) { | |
361 | error = -ENOMEM; | |
362 | goto fail1; | |
363 | } | |
364 | ||
365 | hanwang->irq = usb_alloc_urb(0, GFP_KERNEL); | |
366 | if (!hanwang->irq) { | |
367 | error = -ENOMEM; | |
368 | goto fail2; | |
369 | } | |
370 | ||
371 | hanwang->usbdev = dev; | |
372 | hanwang->dev = input_dev; | |
373 | ||
374 | usb_make_path(dev, hanwang->phys, sizeof(hanwang->phys)); | |
375 | strlcat(hanwang->phys, "/input0", sizeof(hanwang->phys)); | |
376 | ||
377 | strlcpy(hanwang->name, hanwang->features->name, sizeof(hanwang->name)); | |
378 | input_dev->name = hanwang->name; | |
379 | input_dev->phys = hanwang->phys; | |
380 | usb_to_input_id(dev, &input_dev->id); | |
381 | input_dev->dev.parent = &intf->dev; | |
382 | ||
383 | input_set_drvdata(input_dev, hanwang); | |
384 | ||
385 | input_dev->open = hanwang_open; | |
386 | input_dev->close = hanwang_close; | |
387 | ||
388 | for (i = 0; i < ARRAY_SIZE(hw_eventtypes); ++i) | |
389 | __set_bit(hw_eventtypes[i], input_dev->evbit); | |
390 | ||
391 | for (i = 0; i < ARRAY_SIZE(hw_absevents); ++i) | |
392 | __set_bit(hw_absevents[i], input_dev->absbit); | |
393 | ||
394 | for (i = 0; i < ARRAY_SIZE(hw_btnevents); ++i) | |
395 | __set_bit(hw_btnevents[i], input_dev->keybit); | |
396 | ||
24dd3b58 XW |
397 | for (i = 0; i < ARRAY_SIZE(hw_mscevents); ++i) |
398 | __set_bit(hw_mscevents[i], input_dev->mscbit); | |
399 | ||
bba5394a XW |
400 | input_set_abs_params(input_dev, ABS_X, |
401 | 0, hanwang->features->max_x, 4, 0); | |
402 | input_set_abs_params(input_dev, ABS_Y, | |
403 | 0, hanwang->features->max_y, 4, 0); | |
404 | input_set_abs_params(input_dev, ABS_TILT_X, | |
405 | 0, hanwang->features->max_tilt_x, 0, 0); | |
406 | input_set_abs_params(input_dev, ABS_TILT_Y, | |
407 | 0, hanwang->features->max_tilt_y, 0, 0); | |
408 | input_set_abs_params(input_dev, ABS_PRESSURE, | |
409 | 0, hanwang->features->max_pressure, 0, 0); | |
410 | ||
411 | endpoint = &intf->cur_altsetting->endpoint[0].desc; | |
412 | usb_fill_int_urb(hanwang->irq, dev, | |
413 | usb_rcvintpipe(dev, endpoint->bEndpointAddress), | |
414 | hanwang->data, hanwang->features->pkg_len, | |
415 | hanwang_irq, hanwang, endpoint->bInterval); | |
416 | hanwang->irq->transfer_dma = hanwang->data_dma; | |
417 | hanwang->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
418 | ||
419 | error = input_register_device(hanwang->dev); | |
420 | if (error) | |
421 | goto fail3; | |
422 | ||
423 | usb_set_intfdata(intf, hanwang); | |
424 | ||
425 | return 0; | |
426 | ||
427 | fail3: usb_free_urb(hanwang->irq); | |
428 | fail2: usb_free_coherent(dev, hanwang->features->pkg_len, | |
429 | hanwang->data, hanwang->data_dma); | |
430 | fail1: input_free_device(input_dev); | |
431 | kfree(hanwang); | |
432 | return error; | |
433 | ||
434 | } | |
435 | ||
436 | static void hanwang_disconnect(struct usb_interface *intf) | |
437 | { | |
438 | struct hanwang *hanwang = usb_get_intfdata(intf); | |
439 | ||
440 | input_unregister_device(hanwang->dev); | |
441 | usb_free_urb(hanwang->irq); | |
442 | usb_free_coherent(interface_to_usbdev(intf), | |
443 | hanwang->features->pkg_len, hanwang->data, | |
444 | hanwang->data_dma); | |
445 | kfree(hanwang); | |
446 | usb_set_intfdata(intf, NULL); | |
447 | } | |
448 | ||
449 | static const struct usb_device_id hanwang_ids[] = { | |
450 | { HANWANG_TABLET_DEVICE(USB_VENDOR_ID_HANWANG, HANWANG_TABLET_INT_CLASS, | |
451 | HANWANG_TABLET_INT_SUB_CLASS, HANWANG_TABLET_INT_PROTOCOL) }, | |
452 | {} | |
453 | }; | |
454 | ||
455 | MODULE_DEVICE_TABLE(usb, hanwang_ids); | |
456 | ||
457 | static struct usb_driver hanwang_driver = { | |
458 | .name = "hanwang", | |
459 | .probe = hanwang_probe, | |
460 | .disconnect = hanwang_disconnect, | |
461 | .id_table = hanwang_ids, | |
462 | }; | |
463 | ||
08642e7c | 464 | module_usb_driver(hanwang_driver); |