Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Driver for DEC VSXXX-AA mouse (hockey-puck mouse, ball or two rollers) | |
968ac842 DT |
3 | * DEC VSXXX-GA mouse (rectangular mouse, with ball) |
4 | * DEC VSXXX-AB tablet (digitizer with hair cross or stylus) | |
1da177e4 LT |
5 | * |
6 | * Copyright (C) 2003-2004 by Jan-Benedict Glaw <jbglaw@lug-owl.de> | |
7 | * | |
8 | * The packet format was initially taken from a patch to GPM which is (C) 2001 | |
9 | * by Karsten Merker <merker@linuxtag.org> | |
10 | * and Maciej W. Rozycki <macro@ds2.pg.gda.pl> | |
11 | * Later on, I had access to the device's documentation (referenced below). | |
12 | */ | |
13 | ||
14 | /* | |
15 | * This program is free software; you can redistribute it and/or modify | |
16 | * it under the terms of the GNU General Public License as published by | |
17 | * the Free Software Foundation; either version 2 of the License, or | |
18 | * (at your option) any later version. | |
19 | * | |
20 | * This program is distributed in the hope that it will be useful, | |
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | * GNU General Public License for more details. | |
24 | * | |
25 | * You should have received a copy of the GNU General Public License | |
26 | * along with this program; if not, write to the Free Software | |
27 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
28 | */ | |
29 | ||
30 | /* | |
31 | * Building an adaptor to DE9 / DB25 RS232 | |
32 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
33 | * | |
34 | * DISCLAIMER: Use this description AT YOUR OWN RISK! I'll not pay for | |
35 | * anything if you break your mouse, your computer or whatever! | |
36 | * | |
37 | * In theory, this mouse is a simple RS232 device. In practice, it has got | |
38 | * a quite uncommon plug and the requirement to additionally get a power | |
39 | * supply at +5V and -12V. | |
40 | * | |
41 | * If you look at the socket/jack (_not_ at the plug), we use this pin | |
42 | * numbering: | |
43 | * _______ | |
44 | * / 7 6 5 \ | |
45 | * | 4 --- 3 | | |
46 | * \ 2 1 / | |
47 | * ------- | |
48 | * | |
49 | * DEC socket DE9 DB25 Note | |
50 | * 1 (GND) 5 7 - | |
51 | * 2 (RxD) 2 3 - | |
52 | * 3 (TxD) 3 2 - | |
53 | * 4 (-12V) - - Somewhere from the PSU. At ATX, it's | |
54 | * the thin blue wire at pin 12 of the | |
55 | * ATX power connector. Only required for | |
56 | * VSXXX-AA/-GA mice. | |
57 | * 5 (+5V) - - PSU (red wires of ATX power connector | |
58 | * on pin 4, 6, 19 or 20) or HDD power | |
59 | * connector (also red wire). | |
60 | * 6 (+12V) - - HDD power connector, yellow wire. Only | |
61 | * required for VSXXX-AB digitizer. | |
62 | * 7 (dev. avail.) - - The mouse shorts this one to pin 1. | |
63 | * This way, the host computer can detect | |
64 | * the mouse. To use it with the adaptor, | |
65 | * simply don't connect this pin. | |
66 | * | |
67 | * So to get a working adaptor, you need to connect the mouse with three | |
68 | * wires to a RS232 port and two or three additional wires for +5V, +12V and | |
69 | * -12V to the PSU. | |
70 | * | |
71 | * Flow specification for the link is 4800, 8o1. | |
72 | * | |
73 | * The mice and tablet are described in "VCB02 Video Subsystem - Technical | |
74 | * Manual", DEC EK-104AA-TM-001. You'll find it at MANX, a search engine | |
75 | * specific for DEC documentation. Try | |
76 | * http://www.vt100.net/manx/details?pn=EK-104AA-TM-001;id=21;cp=1 | |
77 | */ | |
78 | ||
79 | #include <linux/delay.h> | |
80 | #include <linux/module.h> | |
81 | #include <linux/slab.h> | |
82 | #include <linux/interrupt.h> | |
83 | #include <linux/input.h> | |
84 | #include <linux/config.h> | |
85 | #include <linux/serio.h> | |
86 | #include <linux/init.h> | |
87 | ||
88 | #define DRIVER_DESC "Driver for DEC VSXXX-AA and -GA mice and VSXXX-AB tablet" | |
89 | ||
90 | MODULE_AUTHOR ("Jan-Benedict Glaw <jbglaw@lug-owl.de>"); | |
91 | MODULE_DESCRIPTION (DRIVER_DESC); | |
92 | MODULE_LICENSE ("GPL"); | |
93 | ||
94 | #undef VSXXXAA_DEBUG | |
95 | #ifdef VSXXXAA_DEBUG | |
96 | #define DBG(x...) printk (x) | |
97 | #else | |
98 | #define DBG(x...) do {} while (0) | |
99 | #endif | |
100 | ||
101 | #define VSXXXAA_INTRO_MASK 0x80 | |
102 | #define VSXXXAA_INTRO_HEAD 0x80 | |
103 | #define IS_HDR_BYTE(x) (((x) & VSXXXAA_INTRO_MASK) \ | |
104 | == VSXXXAA_INTRO_HEAD) | |
105 | ||
106 | #define VSXXXAA_PACKET_MASK 0xe0 | |
107 | #define VSXXXAA_PACKET_REL 0x80 | |
108 | #define VSXXXAA_PACKET_ABS 0xc0 | |
109 | #define VSXXXAA_PACKET_POR 0xa0 | |
110 | #define MATCH_PACKET_TYPE(data, type) (((data) & VSXXXAA_PACKET_MASK) == (type)) | |
111 | ||
112 | ||
113 | ||
114 | struct vsxxxaa { | |
2e5b636b | 115 | struct input_dev *dev; |
1da177e4 LT |
116 | struct serio *serio; |
117 | #define BUFLEN 15 /* At least 5 is needed for a full tablet packet */ | |
118 | unsigned char buf[BUFLEN]; | |
119 | unsigned char count; | |
120 | unsigned char version; | |
121 | unsigned char country; | |
122 | unsigned char type; | |
123 | char name[64]; | |
124 | char phys[32]; | |
125 | }; | |
126 | ||
127 | static void | |
128 | vsxxxaa_drop_bytes (struct vsxxxaa *mouse, int num) | |
129 | { | |
130 | if (num >= mouse->count) | |
131 | mouse->count = 0; | |
132 | else { | |
133 | memmove (mouse->buf, mouse->buf + num - 1, BUFLEN - num); | |
134 | mouse->count -= num; | |
135 | } | |
136 | } | |
137 | ||
138 | static void | |
139 | vsxxxaa_queue_byte (struct vsxxxaa *mouse, unsigned char byte) | |
140 | { | |
141 | if (mouse->count == BUFLEN) { | |
142 | printk (KERN_ERR "%s on %s: Dropping a byte of full buffer.\n", | |
143 | mouse->name, mouse->phys); | |
144 | vsxxxaa_drop_bytes (mouse, 1); | |
145 | } | |
146 | DBG (KERN_INFO "Queueing byte 0x%02x\n", byte); | |
147 | ||
148 | mouse->buf[mouse->count++] = byte; | |
149 | } | |
150 | ||
151 | static void | |
152 | vsxxxaa_detection_done (struct vsxxxaa *mouse) | |
153 | { | |
154 | switch (mouse->type) { | |
155 | case 0x02: | |
156 | sprintf (mouse->name, "DEC VSXXX-AA/-GA mouse"); | |
157 | break; | |
158 | ||
159 | case 0x04: | |
160 | sprintf (mouse->name, "DEC VSXXX-AB digitizer"); | |
161 | break; | |
162 | ||
163 | default: | |
164 | sprintf (mouse->name, "unknown DEC pointer device " | |
165 | "(type = 0x%02x)", mouse->type); | |
166 | break; | |
167 | } | |
168 | ||
169 | printk (KERN_INFO "Found %s version 0x%02x from country 0x%02x " | |
170 | "on port %s\n", mouse->name, mouse->version, | |
171 | mouse->country, mouse->phys); | |
172 | } | |
173 | ||
174 | /* | |
175 | * Returns number of bytes to be dropped, 0 if packet is okay. | |
176 | */ | |
177 | static int | |
178 | vsxxxaa_check_packet (struct vsxxxaa *mouse, int packet_len) | |
179 | { | |
180 | int i; | |
181 | ||
182 | /* First byte must be a header byte */ | |
183 | if (!IS_HDR_BYTE (mouse->buf[0])) { | |
184 | DBG ("vsck: len=%d, 1st=0x%02x\n", packet_len, mouse->buf[0]); | |
185 | return 1; | |
186 | } | |
187 | ||
188 | /* Check all following bytes */ | |
189 | if (packet_len > 1) { | |
190 | for (i = 1; i < packet_len; i++) { | |
191 | if (IS_HDR_BYTE (mouse->buf[i])) { | |
192 | printk (KERN_ERR "Need to drop %d bytes " | |
193 | "of a broken packet.\n", | |
194 | i - 1); | |
195 | DBG (KERN_INFO "check: len=%d, b[%d]=0x%02x\n", | |
196 | packet_len, i, mouse->buf[i]); | |
197 | return i - 1; | |
198 | } | |
199 | } | |
200 | } | |
201 | ||
202 | return 0; | |
203 | } | |
204 | ||
205 | static __inline__ int | |
206 | vsxxxaa_smells_like_packet (struct vsxxxaa *mouse, unsigned char type, size_t len) | |
207 | { | |
208 | return (mouse->count >= len) && MATCH_PACKET_TYPE (mouse->buf[0], type); | |
209 | } | |
210 | ||
211 | static void | |
212 | vsxxxaa_handle_REL_packet (struct vsxxxaa *mouse, struct pt_regs *regs) | |
213 | { | |
2e5b636b | 214 | struct input_dev *dev = mouse->dev; |
1da177e4 LT |
215 | unsigned char *buf = mouse->buf; |
216 | int left, middle, right; | |
217 | int dx, dy; | |
218 | ||
219 | /* | |
220 | * Check for normal stream packets. This is three bytes, | |
221 | * with the first byte's 3 MSB set to 100. | |
222 | * | |
223 | * [0]: 1 0 0 SignX SignY Left Middle Right | |
224 | * [1]: 0 dx dx dx dx dx dx dx | |
225 | * [2]: 0 dy dy dy dy dy dy dy | |
226 | */ | |
227 | ||
228 | /* | |
229 | * Low 7 bit of byte 1 are abs(dx), bit 7 is | |
230 | * 0, bit 4 of byte 0 is direction. | |
231 | */ | |
232 | dx = buf[1] & 0x7f; | |
233 | dx *= ((buf[0] >> 4) & 0x01)? 1: -1; | |
234 | ||
235 | /* | |
236 | * Low 7 bit of byte 2 are abs(dy), bit 7 is | |
237 | * 0, bit 3 of byte 0 is direction. | |
238 | */ | |
239 | dy = buf[2] & 0x7f; | |
240 | dy *= ((buf[0] >> 3) & 0x01)? -1: 1; | |
241 | ||
242 | /* | |
243 | * Get button state. It's the low three bits | |
244 | * (for three buttons) of byte 0. | |
245 | */ | |
246 | left = (buf[0] & 0x04)? 1: 0; | |
247 | middle = (buf[0] & 0x02)? 1: 0; | |
248 | right = (buf[0] & 0x01)? 1: 0; | |
249 | ||
250 | vsxxxaa_drop_bytes (mouse, 3); | |
251 | ||
252 | DBG (KERN_INFO "%s on %s: dx=%d, dy=%d, buttons=%s%s%s\n", | |
253 | mouse->name, mouse->phys, dx, dy, | |
254 | left? "L": "l", middle? "M": "m", right? "R": "r"); | |
255 | ||
256 | /* | |
257 | * Report what we've found so far... | |
258 | */ | |
259 | input_regs (dev, regs); | |
260 | input_report_key (dev, BTN_LEFT, left); | |
261 | input_report_key (dev, BTN_MIDDLE, middle); | |
262 | input_report_key (dev, BTN_RIGHT, right); | |
263 | input_report_key (dev, BTN_TOUCH, 0); | |
264 | input_report_rel (dev, REL_X, dx); | |
265 | input_report_rel (dev, REL_Y, dy); | |
266 | input_sync (dev); | |
267 | } | |
268 | ||
269 | static void | |
270 | vsxxxaa_handle_ABS_packet (struct vsxxxaa *mouse, struct pt_regs *regs) | |
271 | { | |
2e5b636b | 272 | struct input_dev *dev = mouse->dev; |
1da177e4 LT |
273 | unsigned char *buf = mouse->buf; |
274 | int left, middle, right, touch; | |
275 | int x, y; | |
276 | ||
277 | /* | |
278 | * Tablet position / button packet | |
279 | * | |
280 | * [0]: 1 1 0 B4 B3 B2 B1 Pr | |
281 | * [1]: 0 0 X5 X4 X3 X2 X1 X0 | |
282 | * [2]: 0 0 X11 X10 X9 X8 X7 X6 | |
283 | * [3]: 0 0 Y5 Y4 Y3 Y2 Y1 Y0 | |
284 | * [4]: 0 0 Y11 Y10 Y9 Y8 Y7 Y6 | |
285 | */ | |
286 | ||
287 | /* | |
288 | * Get X/Y position. Y axis needs to be inverted since VSXXX-AB | |
289 | * counts down->top while monitor counts top->bottom. | |
290 | */ | |
291 | x = ((buf[2] & 0x3f) << 6) | (buf[1] & 0x3f); | |
292 | y = ((buf[4] & 0x3f) << 6) | (buf[3] & 0x3f); | |
293 | y = 1023 - y; | |
294 | ||
295 | /* | |
296 | * Get button state. It's bits <4..1> of byte 0. | |
297 | */ | |
298 | left = (buf[0] & 0x02)? 1: 0; | |
299 | middle = (buf[0] & 0x04)? 1: 0; | |
300 | right = (buf[0] & 0x08)? 1: 0; | |
301 | touch = (buf[0] & 0x10)? 1: 0; | |
302 | ||
303 | vsxxxaa_drop_bytes (mouse, 5); | |
304 | ||
305 | DBG (KERN_INFO "%s on %s: x=%d, y=%d, buttons=%s%s%s%s\n", | |
306 | mouse->name, mouse->phys, x, y, | |
307 | left? "L": "l", middle? "M": "m", | |
308 | right? "R": "r", touch? "T": "t"); | |
309 | ||
310 | /* | |
311 | * Report what we've found so far... | |
312 | */ | |
313 | input_regs (dev, regs); | |
314 | input_report_key (dev, BTN_LEFT, left); | |
315 | input_report_key (dev, BTN_MIDDLE, middle); | |
316 | input_report_key (dev, BTN_RIGHT, right); | |
317 | input_report_key (dev, BTN_TOUCH, touch); | |
318 | input_report_abs (dev, ABS_X, x); | |
319 | input_report_abs (dev, ABS_Y, y); | |
320 | input_sync (dev); | |
321 | } | |
322 | ||
323 | static void | |
324 | vsxxxaa_handle_POR_packet (struct vsxxxaa *mouse, struct pt_regs *regs) | |
325 | { | |
2e5b636b | 326 | struct input_dev *dev = mouse->dev; |
1da177e4 LT |
327 | unsigned char *buf = mouse->buf; |
328 | int left, middle, right; | |
329 | unsigned char error; | |
330 | ||
331 | /* | |
332 | * Check for Power-On-Reset packets. These are sent out | |
333 | * after plugging the mouse in, or when explicitely | |
334 | * requested by sending 'T'. | |
335 | * | |
336 | * [0]: 1 0 1 0 R3 R2 R1 R0 | |
337 | * [1]: 0 M2 M1 M0 D3 D2 D1 D0 | |
338 | * [2]: 0 E6 E5 E4 E3 E2 E1 E0 | |
339 | * [3]: 0 0 0 0 0 Left Middle Right | |
340 | * | |
341 | * M: manufacturer location code | |
342 | * R: revision code | |
343 | * E: Error code. If it's in the range of 0x00..0x1f, only some | |
344 | * minor problem occured. Errors >= 0x20 are considered bad | |
345 | * and the device may not work properly... | |
346 | * D: <0010> == mouse, <0100> == tablet | |
347 | */ | |
348 | ||
349 | mouse->version = buf[0] & 0x0f; | |
350 | mouse->country = (buf[1] >> 4) & 0x07; | |
351 | mouse->type = buf[1] & 0x0f; | |
352 | error = buf[2] & 0x7f; | |
353 | ||
354 | /* | |
355 | * Get button state. It's the low three bits | |
356 | * (for three buttons) of byte 0. Maybe even the bit <3> | |
357 | * has some meaning if a tablet is attached. | |
358 | */ | |
359 | left = (buf[0] & 0x04)? 1: 0; | |
360 | middle = (buf[0] & 0x02)? 1: 0; | |
361 | right = (buf[0] & 0x01)? 1: 0; | |
362 | ||
363 | vsxxxaa_drop_bytes (mouse, 4); | |
364 | vsxxxaa_detection_done (mouse); | |
365 | ||
366 | if (error <= 0x1f) { | |
367 | /* No (serious) error. Report buttons */ | |
368 | input_regs (dev, regs); | |
369 | input_report_key (dev, BTN_LEFT, left); | |
370 | input_report_key (dev, BTN_MIDDLE, middle); | |
371 | input_report_key (dev, BTN_RIGHT, right); | |
372 | input_report_key (dev, BTN_TOUCH, 0); | |
373 | input_sync (dev); | |
374 | ||
375 | if (error != 0) | |
376 | printk (KERN_INFO "Your %s on %s reports error=0x%02x\n", | |
377 | mouse->name, mouse->phys, error); | |
378 | ||
379 | } | |
380 | ||
381 | /* | |
382 | * If the mouse was hot-plugged, we need to force differential mode | |
383 | * now... However, give it a second to recover from it's reset. | |
384 | */ | |
385 | printk (KERN_NOTICE "%s on %s: Forceing standard packet format, " | |
386 | "incremental streaming mode and 72 samples/sec\n", | |
387 | mouse->name, mouse->phys); | |
388 | mouse->serio->write (mouse->serio, 'S'); /* Standard format */ | |
389 | mdelay (50); | |
390 | mouse->serio->write (mouse->serio, 'R'); /* Incremental */ | |
391 | mdelay (50); | |
392 | mouse->serio->write (mouse->serio, 'L'); /* 72 samples/sec */ | |
393 | } | |
394 | ||
395 | static void | |
396 | vsxxxaa_parse_buffer (struct vsxxxaa *mouse, struct pt_regs *regs) | |
397 | { | |
398 | unsigned char *buf = mouse->buf; | |
399 | int stray_bytes; | |
400 | ||
401 | /* | |
402 | * Parse buffer to death... | |
403 | */ | |
404 | do { | |
405 | /* | |
406 | * Out of sync? Throw away what we don't understand. Each | |
407 | * packet starts with a byte whose bit 7 is set. Unhandled | |
408 | * packets (ie. which we don't know about or simply b0rk3d | |
409 | * data...) will get shifted out of the buffer after some | |
410 | * activity on the mouse. | |
411 | */ | |
412 | while (mouse->count > 0 && !IS_HDR_BYTE(buf[0])) { | |
413 | printk (KERN_ERR "%s on %s: Dropping a byte to regain " | |
414 | "sync with mouse data stream...\n", | |
415 | mouse->name, mouse->phys); | |
416 | vsxxxaa_drop_bytes (mouse, 1); | |
417 | } | |
418 | ||
419 | /* | |
420 | * Check for packets we know about. | |
421 | */ | |
422 | ||
423 | if (vsxxxaa_smells_like_packet (mouse, VSXXXAA_PACKET_REL, 3)) { | |
424 | /* Check for broken packet */ | |
425 | stray_bytes = vsxxxaa_check_packet (mouse, 3); | |
426 | if (stray_bytes > 0) { | |
427 | printk (KERN_ERR "Dropping %d bytes now...\n", | |
428 | stray_bytes); | |
429 | vsxxxaa_drop_bytes (mouse, stray_bytes); | |
430 | continue; | |
431 | } | |
432 | ||
433 | vsxxxaa_handle_REL_packet (mouse, regs); | |
434 | continue; /* More to parse? */ | |
435 | } | |
436 | ||
437 | if (vsxxxaa_smells_like_packet (mouse, VSXXXAA_PACKET_ABS, 5)) { | |
438 | /* Check for broken packet */ | |
439 | stray_bytes = vsxxxaa_check_packet (mouse, 5); | |
440 | if (stray_bytes > 0) { | |
441 | printk (KERN_ERR "Dropping %d bytes now...\n", | |
442 | stray_bytes); | |
443 | vsxxxaa_drop_bytes (mouse, stray_bytes); | |
444 | continue; | |
445 | } | |
446 | ||
447 | vsxxxaa_handle_ABS_packet (mouse, regs); | |
448 | continue; /* More to parse? */ | |
449 | } | |
450 | ||
451 | if (vsxxxaa_smells_like_packet (mouse, VSXXXAA_PACKET_POR, 4)) { | |
452 | /* Check for broken packet */ | |
453 | stray_bytes = vsxxxaa_check_packet (mouse, 4); | |
454 | if (stray_bytes > 0) { | |
455 | printk (KERN_ERR "Dropping %d bytes now...\n", | |
456 | stray_bytes); | |
457 | vsxxxaa_drop_bytes (mouse, stray_bytes); | |
458 | continue; | |
459 | } | |
460 | ||
461 | vsxxxaa_handle_POR_packet (mouse, regs); | |
462 | continue; /* More to parse? */ | |
463 | } | |
464 | ||
465 | break; /* No REL, ABS or POR packet found */ | |
466 | } while (1); | |
467 | } | |
468 | ||
469 | static irqreturn_t | |
470 | vsxxxaa_interrupt (struct serio *serio, unsigned char data, unsigned int flags, | |
471 | struct pt_regs *regs) | |
472 | { | |
473 | struct vsxxxaa *mouse = serio_get_drvdata (serio); | |
474 | ||
475 | vsxxxaa_queue_byte (mouse, data); | |
476 | vsxxxaa_parse_buffer (mouse, regs); | |
477 | ||
478 | return IRQ_HANDLED; | |
479 | } | |
480 | ||
481 | static void | |
482 | vsxxxaa_disconnect (struct serio *serio) | |
483 | { | |
484 | struct vsxxxaa *mouse = serio_get_drvdata (serio); | |
485 | ||
1da177e4 LT |
486 | serio_close (serio); |
487 | serio_set_drvdata (serio, NULL); | |
2e5b636b | 488 | input_unregister_device (mouse->dev); |
1da177e4 LT |
489 | kfree (mouse); |
490 | } | |
491 | ||
492 | static int | |
493 | vsxxxaa_connect (struct serio *serio, struct serio_driver *drv) | |
494 | { | |
495 | struct vsxxxaa *mouse; | |
2e5b636b DT |
496 | struct input_dev *input_dev; |
497 | int err = -ENOMEM; | |
1da177e4 | 498 | |
2e5b636b DT |
499 | mouse = kzalloc (sizeof (struct vsxxxaa), GFP_KERNEL); |
500 | input_dev = input_allocate_device (); | |
501 | if (!mouse || !input_dev) | |
502 | goto fail; | |
1da177e4 | 503 | |
2e5b636b DT |
504 | mouse->dev = input_dev; |
505 | mouse->serio = serio; | |
1da177e4 LT |
506 | sprintf (mouse->name, "DEC VSXXX-AA/-GA mouse or VSXXX-AB digitizer"); |
507 | sprintf (mouse->phys, "%s/input0", serio->phys); | |
2e5b636b DT |
508 | |
509 | input_dev->name = mouse->name; | |
510 | input_dev->phys = mouse->phys; | |
511 | input_dev->id.bustype = BUS_RS232; | |
512 | input_dev->cdev.dev = &serio->dev; | |
513 | input_dev->private = mouse; | |
514 | ||
515 | set_bit (EV_KEY, input_dev->evbit); /* We have buttons */ | |
516 | set_bit (EV_REL, input_dev->evbit); | |
517 | set_bit (EV_ABS, input_dev->evbit); | |
518 | set_bit (BTN_LEFT, input_dev->keybit); /* We have 3 buttons */ | |
519 | set_bit (BTN_MIDDLE, input_dev->keybit); | |
520 | set_bit (BTN_RIGHT, input_dev->keybit); | |
521 | set_bit (BTN_TOUCH, input_dev->keybit); /* ...and Tablet */ | |
522 | set_bit (REL_X, input_dev->relbit); | |
523 | set_bit (REL_Y, input_dev->relbit); | |
524 | input_set_abs_params (input_dev, ABS_X, 0, 1023, 0, 0); | |
525 | input_set_abs_params (input_dev, ABS_Y, 0, 1023, 0, 0); | |
1da177e4 LT |
526 | |
527 | serio_set_drvdata (serio, mouse); | |
528 | ||
529 | err = serio_open (serio, drv); | |
2e5b636b DT |
530 | if (err) |
531 | goto fail; | |
1da177e4 LT |
532 | |
533 | /* | |
534 | * Request selftest. Standard packet format and differential | |
535 | * mode will be requested after the device ID'ed successfully. | |
536 | */ | |
2e5b636b | 537 | serio->write (serio, 'T'); /* Test */ |
1da177e4 | 538 | |
2e5b636b | 539 | input_register_device (input_dev); |
1da177e4 LT |
540 | |
541 | return 0; | |
2e5b636b DT |
542 | |
543 | fail: serio_set_drvdata (serio, NULL); | |
544 | input_free_device (input_dev); | |
545 | kfree (mouse); | |
546 | return err; | |
1da177e4 LT |
547 | } |
548 | ||
549 | static struct serio_device_id vsxxaa_serio_ids[] = { | |
550 | { | |
551 | .type = SERIO_RS232, | |
552 | .proto = SERIO_VSXXXAA, | |
553 | .id = SERIO_ANY, | |
554 | .extra = SERIO_ANY, | |
555 | }, | |
556 | { 0 } | |
557 | }; | |
558 | ||
559 | MODULE_DEVICE_TABLE(serio, vsxxaa_serio_ids); | |
560 | ||
561 | static struct serio_driver vsxxxaa_drv = { | |
562 | .driver = { | |
563 | .name = "vsxxxaa", | |
564 | }, | |
565 | .description = DRIVER_DESC, | |
566 | .id_table = vsxxaa_serio_ids, | |
567 | .connect = vsxxxaa_connect, | |
568 | .interrupt = vsxxxaa_interrupt, | |
569 | .disconnect = vsxxxaa_disconnect, | |
570 | }; | |
571 | ||
572 | static int __init | |
573 | vsxxxaa_init (void) | |
574 | { | |
575 | serio_register_driver(&vsxxxaa_drv); | |
576 | return 0; | |
577 | } | |
578 | ||
579 | static void __exit | |
580 | vsxxxaa_exit (void) | |
581 | { | |
582 | serio_unregister_driver(&vsxxxaa_drv); | |
583 | } | |
584 | ||
585 | module_init (vsxxxaa_init); | |
586 | module_exit (vsxxxaa_exit); | |
587 |