Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * PS/2 mouse driver | |
3 | * | |
4 | * Copyright (c) 1999-2002 Vojtech Pavlik | |
5 | * Copyright (c) 2003-2004 Dmitry Torokhov | |
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 version 2 as published by | |
11 | * the Free Software Foundation. | |
12 | */ | |
13 | ||
14 | #include <linux/delay.h> | |
15 | #include <linux/module.h> | |
16 | #include <linux/moduleparam.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/interrupt.h> | |
19 | #include <linux/input.h> | |
20 | #include <linux/serio.h> | |
21 | #include <linux/init.h> | |
22 | #include <linux/libps2.h> | |
c14471dc IM |
23 | #include <linux/mutex.h> |
24 | ||
1da177e4 LT |
25 | #include "psmouse.h" |
26 | #include "synaptics.h" | |
27 | #include "logips2pp.h" | |
28 | #include "alps.h" | |
02d7f589 | 29 | #include "lifebook.h" |
541e316a | 30 | #include "trackpoint.h" |
24bf10ab | 31 | #include "touchkit_ps2.h" |
1da177e4 LT |
32 | |
33 | #define DRIVER_DESC "PS/2 mouse driver" | |
34 | ||
35 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>"); | |
36 | MODULE_DESCRIPTION(DRIVER_DESC); | |
37 | MODULE_LICENSE("GPL"); | |
38 | ||
dbf4ccd6 | 39 | static unsigned int psmouse_max_proto = PSMOUSE_AUTO; |
1da177e4 LT |
40 | static int psmouse_set_maxproto(const char *val, struct kernel_param *kp); |
41 | static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp); | |
1da177e4 LT |
42 | #define param_check_proto_abbrev(name, p) __param_check(name, p, unsigned int) |
43 | #define param_set_proto_abbrev psmouse_set_maxproto | |
44 | #define param_get_proto_abbrev psmouse_get_maxproto | |
45 | module_param_named(proto, psmouse_max_proto, proto_abbrev, 0644); | |
dbf4ccd6 | 46 | MODULE_PARM_DESC(proto, "Highest protocol extension to probe (bare, imps, exps, any). Useful for KVM switches."); |
1da177e4 LT |
47 | |
48 | static unsigned int psmouse_resolution = 200; | |
49 | module_param_named(resolution, psmouse_resolution, uint, 0644); | |
50 | MODULE_PARM_DESC(resolution, "Resolution, in dpi."); | |
51 | ||
52 | static unsigned int psmouse_rate = 100; | |
53 | module_param_named(rate, psmouse_rate, uint, 0644); | |
54 | MODULE_PARM_DESC(rate, "Report rate, in reports per second."); | |
55 | ||
56 | static unsigned int psmouse_smartscroll = 1; | |
57 | module_param_named(smartscroll, psmouse_smartscroll, bool, 0644); | |
58 | MODULE_PARM_DESC(smartscroll, "Logitech Smartscroll autorepeat, 1 = enabled (default), 0 = disabled."); | |
59 | ||
f0d5c6f4 | 60 | static unsigned int psmouse_resetafter = 5; |
1da177e4 LT |
61 | module_param_named(resetafter, psmouse_resetafter, uint, 0644); |
62 | MODULE_PARM_DESC(resetafter, "Reset device after so many bad packets (0 = never)."); | |
63 | ||
8bd0ee93 | 64 | static unsigned int psmouse_resync_time; |
f0d5c6f4 DT |
65 | module_param_named(resync_time, psmouse_resync_time, uint, 0644); |
66 | MODULE_PARM_DESC(resync_time, "How long can mouse stay idle before forcing resync (in seconds, 0 = never)."); | |
67 | ||
cfe9e888 DT |
68 | PSMOUSE_DEFINE_ATTR(protocol, S_IWUSR | S_IRUGO, |
69 | NULL, | |
70 | psmouse_attr_show_protocol, psmouse_attr_set_protocol); | |
71 | PSMOUSE_DEFINE_ATTR(rate, S_IWUSR | S_IRUGO, | |
72 | (void *) offsetof(struct psmouse, rate), | |
73 | psmouse_show_int_attr, psmouse_attr_set_rate); | |
74 | PSMOUSE_DEFINE_ATTR(resolution, S_IWUSR | S_IRUGO, | |
75 | (void *) offsetof(struct psmouse, resolution), | |
76 | psmouse_show_int_attr, psmouse_attr_set_resolution); | |
77 | PSMOUSE_DEFINE_ATTR(resetafter, S_IWUSR | S_IRUGO, | |
78 | (void *) offsetof(struct psmouse, resetafter), | |
79 | psmouse_show_int_attr, psmouse_set_int_attr); | |
f0d5c6f4 DT |
80 | PSMOUSE_DEFINE_ATTR(resync_time, S_IWUSR | S_IRUGO, |
81 | (void *) offsetof(struct psmouse, resync_time), | |
82 | psmouse_show_int_attr, psmouse_set_int_attr); | |
cfe9e888 DT |
83 | |
84 | static struct attribute *psmouse_attributes[] = { | |
85 | &psmouse_attr_protocol.dattr.attr, | |
86 | &psmouse_attr_rate.dattr.attr, | |
87 | &psmouse_attr_resolution.dattr.attr, | |
88 | &psmouse_attr_resetafter.dattr.attr, | |
f0d5c6f4 | 89 | &psmouse_attr_resync_time.dattr.attr, |
cfe9e888 DT |
90 | NULL |
91 | }; | |
92 | ||
93 | static struct attribute_group psmouse_attribute_group = { | |
94 | .attrs = psmouse_attributes, | |
95 | }; | |
1da177e4 | 96 | |
04df1925 | 97 | /* |
c14471dc | 98 | * psmouse_mutex protects all operations changing state of mouse |
04df1925 DT |
99 | * (connecting, disconnecting, changing rate or resolution via |
100 | * sysfs). We could use a per-device semaphore but since there | |
101 | * rarely more than one PS/2 mouse connected and since semaphore | |
102 | * is taken in "slow" paths it is not worth it. | |
103 | */ | |
c14471dc | 104 | static DEFINE_MUTEX(psmouse_mutex); |
04df1925 | 105 | |
f0d5c6f4 DT |
106 | static struct workqueue_struct *kpsmoused_wq; |
107 | ||
dbf4ccd6 DT |
108 | struct psmouse_protocol { |
109 | enum psmouse_type type; | |
e38de678 HD |
110 | const char *name; |
111 | const char *alias; | |
dbf4ccd6 DT |
112 | int maxproto; |
113 | int (*detect)(struct psmouse *, int); | |
114 | int (*init)(struct psmouse *); | |
115 | }; | |
1da177e4 LT |
116 | |
117 | /* | |
118 | * psmouse_process_byte() analyzes the PS/2 data stream and reports | |
119 | * relevant events to the input module once full packet has arrived. | |
120 | */ | |
121 | ||
7d12e780 | 122 | static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse) |
1da177e4 | 123 | { |
2e5b636b | 124 | struct input_dev *dev = psmouse->dev; |
1da177e4 LT |
125 | unsigned char *packet = psmouse->packet; |
126 | ||
127 | if (psmouse->pktcnt < psmouse->pktsize) | |
128 | return PSMOUSE_GOOD_DATA; | |
129 | ||
130 | /* | |
131 | * Full packet accumulated, process it | |
132 | */ | |
133 | ||
1da177e4 LT |
134 | /* |
135 | * Scroll wheel on IntelliMice, scroll buttons on NetMice | |
136 | */ | |
137 | ||
138 | if (psmouse->type == PSMOUSE_IMPS || psmouse->type == PSMOUSE_GENPS) | |
139 | input_report_rel(dev, REL_WHEEL, -(signed char) packet[3]); | |
140 | ||
141 | /* | |
142 | * Scroll wheel and buttons on IntelliMouse Explorer | |
143 | */ | |
144 | ||
145 | if (psmouse->type == PSMOUSE_IMEX) { | |
b0c9ad8e PB |
146 | switch (packet[3] & 0xC0) { |
147 | case 0x80: /* vertical scroll on IntelliMouse Explorer 4.0 */ | |
148 | input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 32) - (int) (packet[3] & 31)); | |
149 | break; | |
150 | case 0x40: /* horizontal scroll on IntelliMouse Explorer 4.0 */ | |
151 | input_report_rel(dev, REL_HWHEEL, (int) (packet[3] & 32) - (int) (packet[3] & 31)); | |
152 | break; | |
153 | case 0x00: | |
154 | case 0xC0: | |
155 | input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 8) - (int) (packet[3] & 7)); | |
156 | input_report_key(dev, BTN_SIDE, (packet[3] >> 4) & 1); | |
157 | input_report_key(dev, BTN_EXTRA, (packet[3] >> 5) & 1); | |
158 | break; | |
159 | } | |
1da177e4 LT |
160 | } |
161 | ||
162 | /* | |
163 | * Extra buttons on Genius NewNet 3D | |
164 | */ | |
165 | ||
166 | if (psmouse->type == PSMOUSE_GENPS) { | |
167 | input_report_key(dev, BTN_SIDE, (packet[0] >> 6) & 1); | |
168 | input_report_key(dev, BTN_EXTRA, (packet[0] >> 7) & 1); | |
169 | } | |
170 | ||
171 | /* | |
172 | * Extra button on ThinkingMouse | |
173 | */ | |
174 | if (psmouse->type == PSMOUSE_THINKPS) { | |
175 | input_report_key(dev, BTN_EXTRA, (packet[0] >> 3) & 1); | |
176 | /* Without this bit of weirdness moving up gives wildly high Y changes. */ | |
177 | packet[1] |= (packet[0] & 0x40) << 1; | |
178 | } | |
179 | ||
aea6a461 AR |
180 | /* |
181 | * Cortron PS2 Trackball reports SIDE button on the 4th bit of the first | |
182 | * byte. | |
183 | */ | |
184 | if (psmouse->type == PSMOUSE_CORTRON) { | |
185 | input_report_key(dev, BTN_SIDE, (packet[0] >> 3) & 1); | |
186 | packet[0] |= 0x08; | |
187 | } | |
188 | ||
1da177e4 LT |
189 | /* |
190 | * Generic PS/2 Mouse | |
191 | */ | |
192 | ||
193 | input_report_key(dev, BTN_LEFT, packet[0] & 1); | |
194 | input_report_key(dev, BTN_MIDDLE, (packet[0] >> 2) & 1); | |
195 | input_report_key(dev, BTN_RIGHT, (packet[0] >> 1) & 1); | |
196 | ||
197 | input_report_rel(dev, REL_X, packet[1] ? (int) packet[1] - (int) ((packet[0] << 4) & 0x100) : 0); | |
198 | input_report_rel(dev, REL_Y, packet[2] ? (int) ((packet[0] << 3) & 0x100) - (int) packet[2] : 0); | |
199 | ||
200 | input_sync(dev); | |
201 | ||
202 | return PSMOUSE_FULL_PACKET; | |
203 | } | |
204 | ||
205 | /* | |
f0d5c6f4 DT |
206 | * __psmouse_set_state() sets new psmouse state and resets all flags. |
207 | */ | |
208 | ||
209 | static inline void __psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state) | |
210 | { | |
211 | psmouse->state = new_state; | |
212 | psmouse->pktcnt = psmouse->out_of_sync = 0; | |
213 | psmouse->ps2dev.flags = 0; | |
214 | psmouse->last = jiffies; | |
215 | } | |
216 | ||
217 | ||
218 | /* | |
219 | * psmouse_set_state() sets new psmouse state and resets all flags and | |
220 | * counters while holding serio lock so fighting with interrupt handler | |
221 | * is not a concern. | |
222 | */ | |
223 | ||
224 | static void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state) | |
225 | { | |
226 | serio_pause_rx(psmouse->ps2dev.serio); | |
227 | __psmouse_set_state(psmouse, new_state); | |
228 | serio_continue_rx(psmouse->ps2dev.serio); | |
229 | } | |
230 | ||
231 | /* | |
232 | * psmouse_handle_byte() processes one byte of the input data stream | |
233 | * by calling corresponding protocol handler. | |
234 | */ | |
235 | ||
7d12e780 | 236 | static int psmouse_handle_byte(struct psmouse *psmouse) |
f0d5c6f4 | 237 | { |
7d12e780 | 238 | psmouse_ret_t rc = psmouse->protocol_handler(psmouse); |
f0d5c6f4 DT |
239 | |
240 | switch (rc) { | |
241 | case PSMOUSE_BAD_DATA: | |
242 | if (psmouse->state == PSMOUSE_ACTIVATED) { | |
243 | printk(KERN_WARNING "psmouse.c: %s at %s lost sync at byte %d\n", | |
244 | psmouse->name, psmouse->phys, psmouse->pktcnt); | |
245 | if (++psmouse->out_of_sync == psmouse->resetafter) { | |
246 | __psmouse_set_state(psmouse, PSMOUSE_IGNORE); | |
247 | printk(KERN_NOTICE "psmouse.c: issuing reconnect request\n"); | |
248 | serio_reconnect(psmouse->ps2dev.serio); | |
249 | return -1; | |
250 | } | |
251 | } | |
252 | psmouse->pktcnt = 0; | |
253 | break; | |
254 | ||
255 | case PSMOUSE_FULL_PACKET: | |
256 | psmouse->pktcnt = 0; | |
257 | if (psmouse->out_of_sync) { | |
258 | psmouse->out_of_sync = 0; | |
259 | printk(KERN_NOTICE "psmouse.c: %s at %s - driver resynched.\n", | |
260 | psmouse->name, psmouse->phys); | |
261 | } | |
262 | break; | |
263 | ||
264 | case PSMOUSE_GOOD_DATA: | |
265 | break; | |
266 | } | |
267 | return 0; | |
268 | } | |
269 | ||
270 | /* | |
271 | * psmouse_interrupt() handles incoming characters, either passing them | |
272 | * for normal processing or gathering them as command response. | |
1da177e4 LT |
273 | */ |
274 | ||
275 | static irqreturn_t psmouse_interrupt(struct serio *serio, | |
7d12e780 | 276 | unsigned char data, unsigned int flags) |
1da177e4 LT |
277 | { |
278 | struct psmouse *psmouse = serio_get_drvdata(serio); | |
1da177e4 LT |
279 | |
280 | if (psmouse->state == PSMOUSE_IGNORE) | |
281 | goto out; | |
282 | ||
283 | if (flags & (SERIO_PARITY|SERIO_TIMEOUT)) { | |
284 | if (psmouse->state == PSMOUSE_ACTIVATED) | |
285 | printk(KERN_WARNING "psmouse.c: bad data from KBC -%s%s\n", | |
286 | flags & SERIO_TIMEOUT ? " timeout" : "", | |
287 | flags & SERIO_PARITY ? " bad parity" : ""); | |
288 | ps2_cmd_aborted(&psmouse->ps2dev); | |
289 | goto out; | |
290 | } | |
291 | ||
292 | if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_ACK)) | |
293 | if (ps2_handle_ack(&psmouse->ps2dev, data)) | |
294 | goto out; | |
295 | ||
296 | if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_CMD)) | |
297 | if (ps2_handle_response(&psmouse->ps2dev, data)) | |
298 | goto out; | |
299 | ||
f0d5c6f4 | 300 | if (psmouse->state <= PSMOUSE_RESYNCING) |
1da177e4 LT |
301 | goto out; |
302 | ||
303 | if (psmouse->state == PSMOUSE_ACTIVATED && | |
304 | psmouse->pktcnt && time_after(jiffies, psmouse->last + HZ/2)) { | |
f0d5c6f4 | 305 | printk(KERN_INFO "psmouse.c: %s at %s lost synchronization, throwing %d bytes away.\n", |
1da177e4 | 306 | psmouse->name, psmouse->phys, psmouse->pktcnt); |
f0d5c6f4 DT |
307 | psmouse->badbyte = psmouse->packet[0]; |
308 | __psmouse_set_state(psmouse, PSMOUSE_RESYNCING); | |
309 | queue_work(kpsmoused_wq, &psmouse->resync_work); | |
310 | goto out; | |
1da177e4 LT |
311 | } |
312 | ||
1da177e4 | 313 | psmouse->packet[psmouse->pktcnt++] = data; |
f0d5c6f4 DT |
314 | /* |
315 | * Check if this is a new device announcement (0xAA 0x00) | |
316 | */ | |
317 | if (unlikely(psmouse->packet[0] == PSMOUSE_RET_BAT && psmouse->pktcnt <= 2)) { | |
89c9b480 DT |
318 | if (psmouse->pktcnt == 1) { |
319 | psmouse->last = jiffies; | |
1da177e4 | 320 | goto out; |
89c9b480 | 321 | } |
1da177e4 | 322 | |
f0d5c6f4 DT |
323 | if (psmouse->packet[1] == PSMOUSE_RET_ID) { |
324 | __psmouse_set_state(psmouse, PSMOUSE_IGNORE); | |
325 | serio_reconnect(serio); | |
326 | goto out; | |
1da177e4 | 327 | } |
f0d5c6f4 DT |
328 | /* |
329 | * Not a new device, try processing first byte normally | |
330 | */ | |
331 | psmouse->pktcnt = 1; | |
7d12e780 | 332 | if (psmouse_handle_byte(psmouse)) |
f0d5c6f4 | 333 | goto out; |
1da177e4 | 334 | |
f0d5c6f4 DT |
335 | psmouse->packet[psmouse->pktcnt++] = data; |
336 | } | |
1da177e4 | 337 | |
f0d5c6f4 DT |
338 | /* |
339 | * See if we need to force resync because mouse was idle for too long | |
340 | */ | |
341 | if (psmouse->state == PSMOUSE_ACTIVATED && | |
342 | psmouse->pktcnt == 1 && psmouse->resync_time && | |
343 | time_after(jiffies, psmouse->last + psmouse->resync_time * HZ)) { | |
344 | psmouse->badbyte = psmouse->packet[0]; | |
345 | __psmouse_set_state(psmouse, PSMOUSE_RESYNCING); | |
346 | queue_work(kpsmoused_wq, &psmouse->resync_work); | |
347 | goto out; | |
348 | } | |
1da177e4 | 349 | |
f0d5c6f4 | 350 | psmouse->last = jiffies; |
7d12e780 | 351 | psmouse_handle_byte(psmouse); |
1da177e4 | 352 | |
f0d5c6f4 | 353 | out: |
1da177e4 LT |
354 | return IRQ_HANDLED; |
355 | } | |
356 | ||
357 | ||
358 | /* | |
359 | * psmouse_sliced_command() sends an extended PS/2 command to the mouse | |
360 | * using sliced syntax, understood by advanced devices, such as Logitech | |
361 | * or Synaptics touchpads. The command is encoded as: | |
362 | * 0xE6 0xE8 rr 0xE8 ss 0xE8 tt 0xE8 uu where (rr*64)+(ss*16)+(tt*4)+uu | |
363 | * is the command. | |
364 | */ | |
365 | int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command) | |
366 | { | |
367 | int i; | |
368 | ||
369 | if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11)) | |
370 | return -1; | |
371 | ||
372 | for (i = 6; i >= 0; i -= 2) { | |
373 | unsigned char d = (command >> i) & 3; | |
374 | if (ps2_command(&psmouse->ps2dev, &d, PSMOUSE_CMD_SETRES)) | |
375 | return -1; | |
376 | } | |
377 | ||
378 | return 0; | |
379 | } | |
380 | ||
381 | ||
382 | /* | |
383 | * psmouse_reset() resets the mouse into power-on state. | |
384 | */ | |
385 | int psmouse_reset(struct psmouse *psmouse) | |
386 | { | |
387 | unsigned char param[2]; | |
388 | ||
389 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_RESET_BAT)) | |
390 | return -1; | |
391 | ||
392 | if (param[0] != PSMOUSE_RET_BAT && param[1] != PSMOUSE_RET_ID) | |
393 | return -1; | |
394 | ||
395 | return 0; | |
396 | } | |
397 | ||
398 | ||
399 | /* | |
400 | * Genius NetMouse magic init. | |
401 | */ | |
402 | static int genius_detect(struct psmouse *psmouse, int set_properties) | |
403 | { | |
404 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
405 | unsigned char param[4]; | |
406 | ||
407 | param[0] = 3; | |
408 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
409 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
410 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
411 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
412 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); | |
413 | ||
414 | if (param[0] != 0x00 || param[1] != 0x33 || param[2] != 0x55) | |
415 | return -1; | |
416 | ||
417 | if (set_properties) { | |
2e5b636b DT |
418 | set_bit(BTN_EXTRA, psmouse->dev->keybit); |
419 | set_bit(BTN_SIDE, psmouse->dev->keybit); | |
420 | set_bit(REL_WHEEL, psmouse->dev->relbit); | |
1da177e4 LT |
421 | |
422 | psmouse->vendor = "Genius"; | |
a3f3f317 | 423 | psmouse->name = "Mouse"; |
1da177e4 LT |
424 | psmouse->pktsize = 4; |
425 | } | |
426 | ||
427 | return 0; | |
428 | } | |
429 | ||
430 | /* | |
431 | * IntelliMouse magic init. | |
432 | */ | |
433 | static int intellimouse_detect(struct psmouse *psmouse, int set_properties) | |
434 | { | |
435 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
436 | unsigned char param[2]; | |
437 | ||
438 | param[0] = 200; | |
439 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
440 | param[0] = 100; | |
441 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
442 | param[0] = 80; | |
443 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
444 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); | |
445 | ||
446 | if (param[0] != 3) | |
447 | return -1; | |
448 | ||
449 | if (set_properties) { | |
2e5b636b DT |
450 | set_bit(BTN_MIDDLE, psmouse->dev->keybit); |
451 | set_bit(REL_WHEEL, psmouse->dev->relbit); | |
1da177e4 LT |
452 | |
453 | if (!psmouse->vendor) psmouse->vendor = "Generic"; | |
454 | if (!psmouse->name) psmouse->name = "Wheel Mouse"; | |
455 | psmouse->pktsize = 4; | |
456 | } | |
457 | ||
458 | return 0; | |
459 | } | |
460 | ||
461 | /* | |
462 | * Try IntelliMouse/Explorer magic init. | |
463 | */ | |
464 | static int im_explorer_detect(struct psmouse *psmouse, int set_properties) | |
465 | { | |
466 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
467 | unsigned char param[2]; | |
468 | ||
469 | intellimouse_detect(psmouse, 0); | |
470 | ||
471 | param[0] = 200; | |
472 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
473 | param[0] = 200; | |
474 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
475 | param[0] = 80; | |
476 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
477 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); | |
478 | ||
479 | if (param[0] != 4) | |
480 | return -1; | |
481 | ||
b0c9ad8e PB |
482 | /* Magic to enable horizontal scrolling on IntelliMouse 4.0 */ |
483 | param[0] = 200; | |
484 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
485 | param[0] = 80; | |
486 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
487 | param[0] = 40; | |
488 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
489 | ||
1da177e4 | 490 | if (set_properties) { |
2e5b636b DT |
491 | set_bit(BTN_MIDDLE, psmouse->dev->keybit); |
492 | set_bit(REL_WHEEL, psmouse->dev->relbit); | |
b0c9ad8e | 493 | set_bit(REL_HWHEEL, psmouse->dev->relbit); |
2e5b636b DT |
494 | set_bit(BTN_SIDE, psmouse->dev->keybit); |
495 | set_bit(BTN_EXTRA, psmouse->dev->keybit); | |
1da177e4 LT |
496 | |
497 | if (!psmouse->vendor) psmouse->vendor = "Generic"; | |
498 | if (!psmouse->name) psmouse->name = "Explorer Mouse"; | |
499 | psmouse->pktsize = 4; | |
500 | } | |
501 | ||
502 | return 0; | |
503 | } | |
504 | ||
505 | /* | |
506 | * Kensington ThinkingMouse / ExpertMouse magic init. | |
507 | */ | |
508 | static int thinking_detect(struct psmouse *psmouse, int set_properties) | |
509 | { | |
510 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
511 | unsigned char param[2]; | |
e38de678 | 512 | static const unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20 }; |
1da177e4 LT |
513 | int i; |
514 | ||
515 | param[0] = 10; | |
516 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
517 | param[0] = 0; | |
518 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
e38de678 HD |
519 | for (i = 0; i < ARRAY_SIZE(seq); i++) { |
520 | param[0] = seq[i]; | |
521 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
522 | } | |
1da177e4 LT |
523 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); |
524 | ||
525 | if (param[0] != 2) | |
526 | return -1; | |
527 | ||
528 | if (set_properties) { | |
2e5b636b | 529 | set_bit(BTN_EXTRA, psmouse->dev->keybit); |
1da177e4 LT |
530 | |
531 | psmouse->vendor = "Kensington"; | |
532 | psmouse->name = "ThinkingMouse"; | |
533 | } | |
534 | ||
535 | return 0; | |
536 | } | |
537 | ||
538 | /* | |
539 | * Bare PS/2 protocol "detection". Always succeeds. | |
540 | */ | |
541 | static int ps2bare_detect(struct psmouse *psmouse, int set_properties) | |
542 | { | |
dbf4ccd6 DT |
543 | if (set_properties) { |
544 | if (!psmouse->vendor) psmouse->vendor = "Generic"; | |
545 | if (!psmouse->name) psmouse->name = "Mouse"; | |
546 | } | |
1da177e4 LT |
547 | |
548 | return 0; | |
549 | } | |
550 | ||
aea6a461 AR |
551 | /* |
552 | * Cortron PS/2 protocol detection. There's no special way to detect it, so it | |
553 | * must be forced by sysfs protocol writing. | |
554 | */ | |
555 | static int cortron_detect(struct psmouse *psmouse, int set_properties) | |
556 | { | |
557 | if (set_properties) { | |
558 | psmouse->vendor = "Cortron"; | |
559 | psmouse->name = "PS/2 Trackball"; | |
560 | set_bit(BTN_SIDE, psmouse->dev->keybit); | |
561 | } | |
562 | ||
563 | return 0; | |
564 | } | |
dbf4ccd6 | 565 | |
1da177e4 LT |
566 | /* |
567 | * psmouse_extensions() probes for any extensions to the basic PS/2 protocol | |
568 | * the mouse may have. | |
569 | */ | |
570 | ||
571 | static int psmouse_extensions(struct psmouse *psmouse, | |
572 | unsigned int max_proto, int set_properties) | |
573 | { | |
574 | int synaptics_hardware = 0; | |
575 | ||
a15d60f8 DT |
576 | /* |
577 | * We always check for lifebook because it does not disturb mouse | |
578 | * (it only checks DMI information). | |
579 | */ | |
dbf4ccd6 | 580 | if (lifebook_detect(psmouse, set_properties) == 0) { |
a15d60f8 DT |
581 | if (max_proto > PSMOUSE_IMEX) { |
582 | if (!set_properties || lifebook_init(psmouse) == 0) | |
583 | return PSMOUSE_LIFEBOOK; | |
584 | } | |
585 | } | |
02d7f589 | 586 | |
1da177e4 LT |
587 | /* |
588 | * Try Kensington ThinkingMouse (we try first, because synaptics probe | |
589 | * upsets the thinkingmouse). | |
590 | */ | |
591 | ||
592 | if (max_proto > PSMOUSE_IMEX && thinking_detect(psmouse, set_properties) == 0) | |
593 | return PSMOUSE_THINKPS; | |
594 | ||
595 | /* | |
55e3d922 AS |
596 | * Try Synaptics TouchPad. Note that probing is done even if Synaptics protocol |
597 | * support is disabled in config - we need to know if it is synaptics so we | |
598 | * can reset it properly after probing for intellimouse. | |
1da177e4 LT |
599 | */ |
600 | if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse, set_properties) == 0) { | |
601 | synaptics_hardware = 1; | |
602 | ||
603 | if (max_proto > PSMOUSE_IMEX) { | |
604 | if (!set_properties || synaptics_init(psmouse) == 0) | |
605 | return PSMOUSE_SYNAPTICS; | |
606 | /* | |
607 | * Some Synaptics touchpads can emulate extended protocols (like IMPS/2). | |
608 | * Unfortunately Logitech/Genius probes confuse some firmware versions so | |
609 | * we'll have to skip them. | |
610 | */ | |
611 | max_proto = PSMOUSE_IMEX; | |
612 | } | |
613 | /* | |
614 | * Make sure that touchpad is in relative mode, gestures (taps) are enabled | |
615 | */ | |
616 | synaptics_reset(psmouse); | |
617 | } | |
618 | ||
619 | /* | |
620 | * Try ALPS TouchPad | |
621 | */ | |
622 | if (max_proto > PSMOUSE_IMEX) { | |
623 | ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS); | |
624 | if (alps_detect(psmouse, set_properties) == 0) { | |
625 | if (!set_properties || alps_init(psmouse) == 0) | |
626 | return PSMOUSE_ALPS; | |
627 | /* | |
628 | * Init failed, try basic relative protocols | |
629 | */ | |
630 | max_proto = PSMOUSE_IMEX; | |
631 | } | |
632 | } | |
633 | ||
24bf10ab SL |
634 | if (max_proto > PSMOUSE_IMEX) { |
635 | ||
636 | if (genius_detect(psmouse, set_properties) == 0) | |
637 | return PSMOUSE_GENPS; | |
638 | ||
639 | if (ps2pp_init(psmouse, set_properties) == 0) | |
640 | return PSMOUSE_PS2PP; | |
1da177e4 | 641 | |
24bf10ab SL |
642 | if (trackpoint_detect(psmouse, set_properties) == 0) |
643 | return PSMOUSE_TRACKPOINT; | |
1da177e4 | 644 | |
24bf10ab SL |
645 | if (touchkit_ps2_detect(psmouse, set_properties) == 0) |
646 | return PSMOUSE_TOUCHKIT_PS2; | |
647 | } | |
ba44995a | 648 | |
1da177e4 LT |
649 | /* |
650 | * Reset to defaults in case the device got confused by extended | |
554fc193 AZ |
651 | * protocol probes. Note that we follow up with full reset because |
652 | * some mice put themselves to sleep when they see PSMOUSE_RESET_DIS. | |
1da177e4 | 653 | */ |
554fc193 | 654 | ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS); |
ba44995a | 655 | psmouse_reset(psmouse); |
1da177e4 LT |
656 | |
657 | if (max_proto >= PSMOUSE_IMEX && im_explorer_detect(psmouse, set_properties) == 0) | |
658 | return PSMOUSE_IMEX; | |
659 | ||
660 | if (max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse, set_properties) == 0) | |
661 | return PSMOUSE_IMPS; | |
662 | ||
663 | /* | |
664 | * Okay, all failed, we have a standard mouse here. The number of the buttons | |
665 | * is still a question, though. We assume 3. | |
666 | */ | |
667 | ps2bare_detect(psmouse, set_properties); | |
668 | ||
669 | if (synaptics_hardware) { | |
670 | /* | |
671 | * We detected Synaptics hardware but it did not respond to IMPS/2 probes. | |
672 | * We need to reset the touchpad because if there is a track point on the | |
673 | * pass through port it could get disabled while probing for protocol | |
674 | * extensions. | |
675 | */ | |
676 | psmouse_reset(psmouse); | |
1da177e4 LT |
677 | } |
678 | ||
679 | return PSMOUSE_PS2; | |
680 | } | |
681 | ||
e38de678 | 682 | static const struct psmouse_protocol psmouse_protocols[] = { |
dbf4ccd6 DT |
683 | { |
684 | .type = PSMOUSE_PS2, | |
685 | .name = "PS/2", | |
686 | .alias = "bare", | |
687 | .maxproto = 1, | |
688 | .detect = ps2bare_detect, | |
689 | }, | |
55e3d922 | 690 | #ifdef CONFIG_MOUSE_PS2_LOGIPS2PP |
dbf4ccd6 DT |
691 | { |
692 | .type = PSMOUSE_PS2PP, | |
693 | .name = "PS2++", | |
694 | .alias = "logitech", | |
695 | .detect = ps2pp_init, | |
696 | }, | |
55e3d922 | 697 | #endif |
dbf4ccd6 DT |
698 | { |
699 | .type = PSMOUSE_THINKPS, | |
700 | .name = "ThinkPS/2", | |
701 | .alias = "thinkps", | |
702 | .detect = thinking_detect, | |
703 | }, | |
704 | { | |
705 | .type = PSMOUSE_GENPS, | |
706 | .name = "GenPS/2", | |
707 | .alias = "genius", | |
708 | .detect = genius_detect, | |
709 | }, | |
710 | { | |
711 | .type = PSMOUSE_IMPS, | |
712 | .name = "ImPS/2", | |
713 | .alias = "imps", | |
714 | .maxproto = 1, | |
715 | .detect = intellimouse_detect, | |
716 | }, | |
717 | { | |
718 | .type = PSMOUSE_IMEX, | |
719 | .name = "ImExPS/2", | |
720 | .alias = "exps", | |
721 | .maxproto = 1, | |
722 | .detect = im_explorer_detect, | |
723 | }, | |
55e3d922 | 724 | #ifdef CONFIG_MOUSE_PS2_SYNAPTICS |
dbf4ccd6 DT |
725 | { |
726 | .type = PSMOUSE_SYNAPTICS, | |
727 | .name = "SynPS/2", | |
728 | .alias = "synaptics", | |
729 | .detect = synaptics_detect, | |
730 | .init = synaptics_init, | |
731 | }, | |
55e3d922 AS |
732 | #endif |
733 | #ifdef CONFIG_MOUSE_PS2_ALPS | |
dbf4ccd6 DT |
734 | { |
735 | .type = PSMOUSE_ALPS, | |
736 | .name = "AlpsPS/2", | |
737 | .alias = "alps", | |
738 | .detect = alps_detect, | |
739 | .init = alps_init, | |
740 | }, | |
55e3d922 AS |
741 | #endif |
742 | #ifdef CONFIG_MOUSE_PS2_LIFEBOOK | |
dbf4ccd6 DT |
743 | { |
744 | .type = PSMOUSE_LIFEBOOK, | |
745 | .name = "LBPS/2", | |
746 | .alias = "lifebook", | |
747 | .init = lifebook_init, | |
748 | }, | |
55e3d922 AS |
749 | #endif |
750 | #ifdef CONFIG_MOUSE_PS2_TRACKPOINT | |
541e316a SE |
751 | { |
752 | .type = PSMOUSE_TRACKPOINT, | |
753 | .name = "TPPS/2", | |
754 | .alias = "trackpoint", | |
755 | .detect = trackpoint_detect, | |
756 | }, | |
55e3d922 AS |
757 | #endif |
758 | #ifdef CONFIG_MOUSE_PS2_TOUCHKIT | |
24bf10ab SL |
759 | { |
760 | .type = PSMOUSE_TOUCHKIT_PS2, | |
761 | .name = "touchkitPS/2", | |
762 | .alias = "touchkit", | |
763 | .detect = touchkit_ps2_detect, | |
764 | }, | |
55e3d922 | 765 | #endif |
aea6a461 AR |
766 | { |
767 | .type = PSMOUSE_CORTRON, | |
768 | .name = "CortronPS/2", | |
769 | .alias = "cortps", | |
770 | .detect = cortron_detect, | |
771 | }, | |
dbf4ccd6 DT |
772 | { |
773 | .type = PSMOUSE_AUTO, | |
774 | .name = "auto", | |
775 | .alias = "any", | |
776 | .maxproto = 1, | |
777 | }, | |
778 | }; | |
779 | ||
e38de678 | 780 | static const struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type) |
dbf4ccd6 DT |
781 | { |
782 | int i; | |
783 | ||
784 | for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++) | |
785 | if (psmouse_protocols[i].type == type) | |
786 | return &psmouse_protocols[i]; | |
787 | ||
788 | WARN_ON(1); | |
789 | return &psmouse_protocols[0]; | |
790 | } | |
791 | ||
e38de678 | 792 | static const struct psmouse_protocol *psmouse_protocol_by_name(const char *name, size_t len) |
dbf4ccd6 | 793 | { |
e38de678 | 794 | const struct psmouse_protocol *p; |
dbf4ccd6 DT |
795 | int i; |
796 | ||
797 | for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++) { | |
798 | p = &psmouse_protocols[i]; | |
799 | ||
800 | if ((strlen(p->name) == len && !strncmp(p->name, name, len)) || | |
801 | (strlen(p->alias) == len && !strncmp(p->alias, name, len))) | |
802 | return &psmouse_protocols[i]; | |
803 | } | |
804 | ||
805 | return NULL; | |
806 | } | |
807 | ||
808 | ||
1da177e4 LT |
809 | /* |
810 | * psmouse_probe() probes for a PS/2 mouse. | |
811 | */ | |
812 | ||
813 | static int psmouse_probe(struct psmouse *psmouse) | |
814 | { | |
815 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
816 | unsigned char param[2]; | |
817 | ||
818 | /* | |
819 | * First, we check if it's a mouse. It should send 0x00 or 0x03 | |
820 | * in case of an IntelliMouse in 4-byte mode or 0x04 for IM Explorer. | |
7741e931 VP |
821 | * Sunrex K8561 IR Keyboard/Mouse reports 0xff on second and subsequent |
822 | * ID queries, probably due to a firmware bug. | |
1da177e4 LT |
823 | */ |
824 | ||
825 | param[0] = 0xa5; | |
826 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETID)) | |
827 | return -1; | |
828 | ||
7741e931 VP |
829 | if (param[0] != 0x00 && param[0] != 0x03 && |
830 | param[0] != 0x04 && param[0] != 0xff) | |
1da177e4 LT |
831 | return -1; |
832 | ||
833 | /* | |
834 | * Then we reset and disable the mouse so that it doesn't generate events. | |
835 | */ | |
836 | ||
837 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_DIS)) | |
838 | printk(KERN_WARNING "psmouse.c: Failed to reset mouse on %s\n", ps2dev->serio->phys); | |
839 | ||
840 | return 0; | |
841 | } | |
842 | ||
843 | /* | |
844 | * Here we set the mouse resolution. | |
845 | */ | |
846 | ||
847 | void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution) | |
848 | { | |
e38de678 HD |
849 | static const unsigned char params[] = { 0, 1, 2, 2, 3 }; |
850 | unsigned char p; | |
1da177e4 LT |
851 | |
852 | if (resolution == 0 || resolution > 200) | |
853 | resolution = 200; | |
854 | ||
e38de678 HD |
855 | p = params[resolution / 50]; |
856 | ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES); | |
857 | psmouse->resolution = 25 << p; | |
1da177e4 LT |
858 | } |
859 | ||
860 | /* | |
861 | * Here we set the mouse report rate. | |
862 | */ | |
863 | ||
864 | static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate) | |
865 | { | |
e38de678 HD |
866 | static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 }; |
867 | unsigned char r; | |
1da177e4 LT |
868 | int i = 0; |
869 | ||
870 | while (rates[i] > rate) i++; | |
e38de678 HD |
871 | r = rates[i]; |
872 | ps2_command(&psmouse->ps2dev, &r, PSMOUSE_CMD_SETRATE); | |
873 | psmouse->rate = r; | |
1da177e4 LT |
874 | } |
875 | ||
876 | /* | |
877 | * psmouse_initialize() initializes the mouse to a sane state. | |
878 | */ | |
879 | ||
880 | static void psmouse_initialize(struct psmouse *psmouse) | |
881 | { | |
1da177e4 LT |
882 | /* |
883 | * We set the mouse report rate, resolution and scaling. | |
884 | */ | |
885 | ||
886 | if (psmouse_max_proto != PSMOUSE_PS2) { | |
887 | psmouse->set_rate(psmouse, psmouse->rate); | |
888 | psmouse->set_resolution(psmouse, psmouse->resolution); | |
889 | ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
890 | } | |
891 | } | |
892 | ||
1da177e4 LT |
893 | /* |
894 | * psmouse_activate() enables the mouse so that we get motion reports from it. | |
895 | */ | |
896 | ||
897 | static void psmouse_activate(struct psmouse *psmouse) | |
898 | { | |
899 | if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE)) | |
900 | printk(KERN_WARNING "psmouse.c: Failed to enable mouse on %s\n", | |
901 | psmouse->ps2dev.serio->phys); | |
902 | ||
903 | psmouse_set_state(psmouse, PSMOUSE_ACTIVATED); | |
904 | } | |
905 | ||
906 | ||
907 | /* | |
908 | * psmouse_deactivate() puts the mouse into poll mode so that we don't get motion | |
c03983ac | 909 | * reports from it unless we explicitly request it. |
1da177e4 LT |
910 | */ |
911 | ||
912 | static void psmouse_deactivate(struct psmouse *psmouse) | |
913 | { | |
914 | if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE)) | |
915 | printk(KERN_WARNING "psmouse.c: Failed to deactivate mouse on %s\n", | |
916 | psmouse->ps2dev.serio->phys); | |
917 | ||
918 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); | |
919 | } | |
920 | ||
f0d5c6f4 DT |
921 | /* |
922 | * psmouse_poll() - default poll hanlder. Everyone except for ALPS uses it. | |
923 | */ | |
924 | ||
925 | static int psmouse_poll(struct psmouse *psmouse) | |
926 | { | |
927 | return ps2_command(&psmouse->ps2dev, psmouse->packet, | |
928 | PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)); | |
929 | } | |
930 | ||
931 | ||
932 | /* | |
933 | * psmouse_resync() attempts to re-validate current protocol. | |
934 | */ | |
935 | ||
c4028958 | 936 | static void psmouse_resync(struct work_struct *work) |
f0d5c6f4 | 937 | { |
c4028958 DH |
938 | struct psmouse *parent = NULL, *psmouse = |
939 | container_of(work, struct psmouse, resync_work); | |
f0d5c6f4 DT |
940 | struct serio *serio = psmouse->ps2dev.serio; |
941 | psmouse_ret_t rc = PSMOUSE_GOOD_DATA; | |
942 | int failed = 0, enabled = 0; | |
943 | int i; | |
944 | ||
c14471dc | 945 | mutex_lock(&psmouse_mutex); |
f0d5c6f4 DT |
946 | |
947 | if (psmouse->state != PSMOUSE_RESYNCING) | |
948 | goto out; | |
949 | ||
950 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { | |
951 | parent = serio_get_drvdata(serio->parent); | |
952 | psmouse_deactivate(parent); | |
953 | } | |
954 | ||
955 | /* | |
956 | * Some mice don't ACK commands sent while they are in the middle of | |
957 | * transmitting motion packet. To avoid delay we use ps2_sendbyte() | |
958 | * instead of ps2_command() which would wait for 200ms for an ACK | |
959 | * that may never come. | |
960 | * As an additional quirk ALPS touchpads may not only forget to ACK | |
961 | * disable command but will stop reporting taps, so if we see that | |
962 | * mouse at least once ACKs disable we will do full reconnect if ACK | |
963 | * is missing. | |
964 | */ | |
965 | psmouse->num_resyncs++; | |
966 | ||
967 | if (ps2_sendbyte(&psmouse->ps2dev, PSMOUSE_CMD_DISABLE, 20)) { | |
968 | if (psmouse->num_resyncs < 3 || psmouse->acks_disable_command) | |
969 | failed = 1; | |
970 | } else | |
971 | psmouse->acks_disable_command = 1; | |
972 | ||
973 | /* | |
974 | * Poll the mouse. If it was reset the packet will be shorter than | |
975 | * psmouse->pktsize and ps2_command will fail. We do not expect and | |
976 | * do not handle scenario when mouse "upgrades" its protocol while | |
977 | * disconnected since it would require additional delay. If we ever | |
978 | * see a mouse that does it we'll adjust the code. | |
979 | */ | |
980 | if (!failed) { | |
981 | if (psmouse->poll(psmouse)) | |
982 | failed = 1; | |
983 | else { | |
984 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); | |
985 | for (i = 0; i < psmouse->pktsize; i++) { | |
986 | psmouse->pktcnt++; | |
7d12e780 | 987 | rc = psmouse->protocol_handler(psmouse); |
f0d5c6f4 DT |
988 | if (rc != PSMOUSE_GOOD_DATA) |
989 | break; | |
990 | } | |
991 | if (rc != PSMOUSE_FULL_PACKET) | |
992 | failed = 1; | |
993 | psmouse_set_state(psmouse, PSMOUSE_RESYNCING); | |
994 | } | |
995 | } | |
996 | /* | |
997 | * Now try to enable mouse. We try to do that even if poll failed and also | |
998 | * repeat our attempts 5 times, otherwise we may be left out with disabled | |
999 | * mouse. | |
1000 | */ | |
1001 | for (i = 0; i < 5; i++) { | |
1002 | if (!ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { | |
1003 | enabled = 1; | |
1004 | break; | |
1005 | } | |
1006 | msleep(200); | |
1007 | } | |
1008 | ||
1009 | if (!enabled) { | |
1010 | printk(KERN_WARNING "psmouse.c: failed to re-enable mouse on %s\n", | |
1011 | psmouse->ps2dev.serio->phys); | |
1012 | failed = 1; | |
1013 | } | |
1014 | ||
1015 | if (failed) { | |
1016 | psmouse_set_state(psmouse, PSMOUSE_IGNORE); | |
1017 | printk(KERN_INFO "psmouse.c: resync failed, issuing reconnect request\n"); | |
1018 | serio_reconnect(serio); | |
1019 | } else | |
1020 | psmouse_set_state(psmouse, PSMOUSE_ACTIVATED); | |
1021 | ||
1022 | if (parent) | |
1023 | psmouse_activate(parent); | |
1024 | out: | |
c14471dc | 1025 | mutex_unlock(&psmouse_mutex); |
f0d5c6f4 | 1026 | } |
1da177e4 LT |
1027 | |
1028 | /* | |
1029 | * psmouse_cleanup() resets the mouse into power-on state. | |
1030 | */ | |
1031 | ||
1032 | static void psmouse_cleanup(struct serio *serio) | |
1033 | { | |
1034 | struct psmouse *psmouse = serio_get_drvdata(serio); | |
a1cec061 DT |
1035 | struct psmouse *parent = NULL; |
1036 | ||
1037 | mutex_lock(&psmouse_mutex); | |
1038 | ||
1039 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { | |
1040 | parent = serio_get_drvdata(serio->parent); | |
1041 | psmouse_deactivate(parent); | |
1042 | } | |
1043 | ||
1044 | psmouse_deactivate(psmouse); | |
1045 | ||
1046 | if (psmouse->cleanup) | |
1047 | psmouse->cleanup(psmouse); | |
1da177e4 LT |
1048 | |
1049 | psmouse_reset(psmouse); | |
a1cec061 DT |
1050 | |
1051 | /* | |
1052 | * Some boxes, such as HP nx7400, get terribly confused if mouse | |
1053 | * is not fully enabled before suspending/shutting down. | |
1054 | */ | |
1055 | ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE); | |
1056 | ||
1057 | if (parent) { | |
1058 | if (parent->pt_deactivate) | |
1059 | parent->pt_deactivate(parent); | |
1060 | ||
1061 | psmouse_activate(parent); | |
1062 | } | |
1063 | ||
1064 | mutex_unlock(&psmouse_mutex); | |
1da177e4 LT |
1065 | } |
1066 | ||
1067 | /* | |
1068 | * psmouse_disconnect() closes and frees. | |
1069 | */ | |
1070 | ||
1071 | static void psmouse_disconnect(struct serio *serio) | |
1072 | { | |
04df1925 DT |
1073 | struct psmouse *psmouse, *parent = NULL; |
1074 | ||
1075 | psmouse = serio_get_drvdata(serio); | |
1da177e4 | 1076 | |
cfe9e888 | 1077 | sysfs_remove_group(&serio->dev.kobj, &psmouse_attribute_group); |
1da177e4 | 1078 | |
c14471dc | 1079 | mutex_lock(&psmouse_mutex); |
04df1925 | 1080 | |
1da177e4 LT |
1081 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); |
1082 | ||
f0d5c6f4 | 1083 | /* make sure we don't have a resync in progress */ |
c14471dc | 1084 | mutex_unlock(&psmouse_mutex); |
f0d5c6f4 | 1085 | flush_workqueue(kpsmoused_wq); |
c14471dc | 1086 | mutex_lock(&psmouse_mutex); |
f0d5c6f4 | 1087 | |
1da177e4 LT |
1088 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { |
1089 | parent = serio_get_drvdata(serio->parent); | |
04df1925 | 1090 | psmouse_deactivate(parent); |
1da177e4 LT |
1091 | } |
1092 | ||
1093 | if (psmouse->disconnect) | |
1094 | psmouse->disconnect(psmouse); | |
1095 | ||
04df1925 DT |
1096 | if (parent && parent->pt_deactivate) |
1097 | parent->pt_deactivate(parent); | |
1098 | ||
1da177e4 LT |
1099 | psmouse_set_state(psmouse, PSMOUSE_IGNORE); |
1100 | ||
1da177e4 LT |
1101 | serio_close(serio); |
1102 | serio_set_drvdata(serio, NULL); | |
2e5b636b | 1103 | input_unregister_device(psmouse->dev); |
1da177e4 | 1104 | kfree(psmouse); |
04df1925 DT |
1105 | |
1106 | if (parent) | |
1107 | psmouse_activate(parent); | |
1108 | ||
c14471dc | 1109 | mutex_unlock(&psmouse_mutex); |
1da177e4 LT |
1110 | } |
1111 | ||
e38de678 | 1112 | static int psmouse_switch_protocol(struct psmouse *psmouse, const struct psmouse_protocol *proto) |
dbf4ccd6 | 1113 | { |
2e5b636b | 1114 | struct input_dev *input_dev = psmouse->dev; |
dbf4ccd6 | 1115 | |
28aa7f1c | 1116 | input_dev->dev.parent = &psmouse->ps2dev.serio->dev; |
dbf4ccd6 | 1117 | |
7b19ada2 JS |
1118 | input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); |
1119 | input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) | | |
1120 | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); | |
1121 | input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); | |
dbf4ccd6 DT |
1122 | |
1123 | psmouse->set_rate = psmouse_set_rate; | |
1124 | psmouse->set_resolution = psmouse_set_resolution; | |
f0d5c6f4 | 1125 | psmouse->poll = psmouse_poll; |
dbf4ccd6 DT |
1126 | psmouse->protocol_handler = psmouse_process_byte; |
1127 | psmouse->pktsize = 3; | |
1128 | ||
1129 | if (proto && (proto->detect || proto->init)) { | |
1130 | if (proto->detect && proto->detect(psmouse, 1) < 0) | |
1131 | return -1; | |
1132 | ||
1133 | if (proto->init && proto->init(psmouse) < 0) | |
1134 | return -1; | |
1135 | ||
1136 | psmouse->type = proto->type; | |
1137 | } | |
1138 | else | |
1139 | psmouse->type = psmouse_extensions(psmouse, psmouse_max_proto, 1); | |
1140 | ||
f0d5c6f4 DT |
1141 | /* |
1142 | * If mouse's packet size is 3 there is no point in polling the | |
1143 | * device in hopes to detect protocol reset - we won't get less | |
1144 | * than 3 bytes response anyhow. | |
1145 | */ | |
1146 | if (psmouse->pktsize == 3) | |
1147 | psmouse->resync_time = 0; | |
1148 | ||
1149 | /* | |
1150 | * Some smart KVMs fake response to POLL command returning just | |
1151 | * 3 bytes and messing up our resync logic, so if initial poll | |
1152 | * fails we won't try polling the device anymore. Hopefully | |
1153 | * such KVM will maintain initially selected protocol. | |
1154 | */ | |
1155 | if (psmouse->resync_time && psmouse->poll(psmouse)) | |
1156 | psmouse->resync_time = 0; | |
1157 | ||
08ffce45 DT |
1158 | snprintf(psmouse->devname, sizeof(psmouse->devname), "%s %s %s", |
1159 | psmouse_protocol_by_type(psmouse->type)->name, psmouse->vendor, psmouse->name); | |
dbf4ccd6 | 1160 | |
2e5b636b DT |
1161 | input_dev->name = psmouse->devname; |
1162 | input_dev->phys = psmouse->phys; | |
1163 | input_dev->id.bustype = BUS_I8042; | |
1164 | input_dev->id.vendor = 0x0002; | |
1165 | input_dev->id.product = psmouse->type; | |
1166 | input_dev->id.version = psmouse->model; | |
dbf4ccd6 DT |
1167 | |
1168 | return 0; | |
1169 | } | |
1170 | ||
1da177e4 LT |
1171 | /* |
1172 | * psmouse_connect() is a callback from the serio module when | |
1173 | * an unhandled serio port is found. | |
1174 | */ | |
1175 | static int psmouse_connect(struct serio *serio, struct serio_driver *drv) | |
1176 | { | |
1177 | struct psmouse *psmouse, *parent = NULL; | |
2e5b636b | 1178 | struct input_dev *input_dev; |
72155615 | 1179 | int retval = 0, error = -ENOMEM; |
1da177e4 | 1180 | |
c14471dc | 1181 | mutex_lock(&psmouse_mutex); |
04df1925 | 1182 | |
1da177e4 LT |
1183 | /* |
1184 | * If this is a pass-through port deactivate parent so the device | |
1185 | * connected to this port can be successfully identified | |
1186 | */ | |
1187 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { | |
1188 | parent = serio_get_drvdata(serio->parent); | |
1189 | psmouse_deactivate(parent); | |
1190 | } | |
1191 | ||
2e5b636b DT |
1192 | psmouse = kzalloc(sizeof(struct psmouse), GFP_KERNEL); |
1193 | input_dev = input_allocate_device(); | |
1194 | if (!psmouse || !input_dev) | |
72155615 | 1195 | goto err_free; |
1da177e4 | 1196 | |
1da177e4 | 1197 | ps2_init(&psmouse->ps2dev, serio); |
c4028958 | 1198 | INIT_WORK(&psmouse->resync_work, psmouse_resync); |
2e5b636b | 1199 | psmouse->dev = input_dev; |
08ffce45 | 1200 | snprintf(psmouse->phys, sizeof(psmouse->phys), "%s/input0", serio->phys); |
dbf4ccd6 | 1201 | |
1da177e4 LT |
1202 | psmouse_set_state(psmouse, PSMOUSE_INITIALIZING); |
1203 | ||
1204 | serio_set_drvdata(serio, psmouse); | |
1205 | ||
72155615 DT |
1206 | error = serio_open(serio, drv); |
1207 | if (error) | |
1208 | goto err_clear_drvdata; | |
1da177e4 LT |
1209 | |
1210 | if (psmouse_probe(psmouse) < 0) { | |
72155615 DT |
1211 | error = -ENODEV; |
1212 | goto err_close_serio; | |
1da177e4 LT |
1213 | } |
1214 | ||
1215 | psmouse->rate = psmouse_rate; | |
1216 | psmouse->resolution = psmouse_resolution; | |
1217 | psmouse->resetafter = psmouse_resetafter; | |
f0d5c6f4 | 1218 | psmouse->resync_time = parent ? 0 : psmouse_resync_time; |
1da177e4 | 1219 | psmouse->smartscroll = psmouse_smartscroll; |
1da177e4 | 1220 | |
dbf4ccd6 | 1221 | psmouse_switch_protocol(psmouse, NULL); |
1da177e4 | 1222 | |
1da177e4 | 1223 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); |
1da177e4 LT |
1224 | psmouse_initialize(psmouse); |
1225 | ||
72155615 DT |
1226 | error = input_register_device(psmouse->dev); |
1227 | if (error) | |
1228 | goto err_protocol_disconnect; | |
2e5b636b | 1229 | |
1da177e4 LT |
1230 | if (parent && parent->pt_activate) |
1231 | parent->pt_activate(parent); | |
1232 | ||
72155615 DT |
1233 | error = sysfs_create_group(&serio->dev.kobj, &psmouse_attribute_group); |
1234 | if (error) | |
1235 | goto err_pt_deactivate; | |
1da177e4 LT |
1236 | |
1237 | psmouse_activate(psmouse); | |
1238 | ||
72155615 | 1239 | out: |
04df1925 | 1240 | /* If this is a pass-through port the parent needs to be re-activated */ |
1da177e4 LT |
1241 | if (parent) |
1242 | psmouse_activate(parent); | |
1243 | ||
c14471dc | 1244 | mutex_unlock(&psmouse_mutex); |
1da177e4 | 1245 | return retval; |
72155615 DT |
1246 | |
1247 | err_pt_deactivate: | |
1248 | if (parent && parent->pt_deactivate) | |
1249 | parent->pt_deactivate(parent); | |
1250 | err_protocol_disconnect: | |
1251 | if (psmouse->disconnect) | |
1252 | psmouse->disconnect(psmouse); | |
1253 | psmouse_set_state(psmouse, PSMOUSE_IGNORE); | |
1254 | err_close_serio: | |
1255 | serio_close(serio); | |
1256 | err_clear_drvdata: | |
1257 | serio_set_drvdata(serio, NULL); | |
1258 | err_free: | |
1259 | input_free_device(input_dev); | |
1260 | kfree(psmouse); | |
1261 | ||
1262 | retval = error; | |
1263 | goto out; | |
1da177e4 LT |
1264 | } |
1265 | ||
1266 | ||
1267 | static int psmouse_reconnect(struct serio *serio) | |
1268 | { | |
1269 | struct psmouse *psmouse = serio_get_drvdata(serio); | |
1270 | struct psmouse *parent = NULL; | |
1271 | struct serio_driver *drv = serio->drv; | |
1272 | int rc = -1; | |
1273 | ||
1274 | if (!drv || !psmouse) { | |
1275 | printk(KERN_DEBUG "psmouse: reconnect request, but serio is disconnected, ignoring...\n"); | |
1276 | return -1; | |
1277 | } | |
1278 | ||
c14471dc | 1279 | mutex_lock(&psmouse_mutex); |
04df1925 | 1280 | |
1da177e4 LT |
1281 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { |
1282 | parent = serio_get_drvdata(serio->parent); | |
1283 | psmouse_deactivate(parent); | |
1284 | } | |
1285 | ||
1286 | psmouse_set_state(psmouse, PSMOUSE_INITIALIZING); | |
1287 | ||
1288 | if (psmouse->reconnect) { | |
1289 | if (psmouse->reconnect(psmouse)) | |
1290 | goto out; | |
1291 | } else if (psmouse_probe(psmouse) < 0 || | |
1292 | psmouse->type != psmouse_extensions(psmouse, psmouse_max_proto, 0)) | |
1293 | goto out; | |
1294 | ||
1295 | /* ok, the device type (and capabilities) match the old one, | |
1296 | * we can continue using it, complete intialization | |
1297 | */ | |
1298 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); | |
1299 | ||
1300 | psmouse_initialize(psmouse); | |
1301 | ||
1302 | if (parent && parent->pt_activate) | |
1303 | parent->pt_activate(parent); | |
1304 | ||
1305 | psmouse_activate(psmouse); | |
1306 | rc = 0; | |
1307 | ||
1308 | out: | |
1309 | /* If this is a pass-through port the parent waits to be activated */ | |
1310 | if (parent) | |
1311 | psmouse_activate(parent); | |
1312 | ||
c14471dc | 1313 | mutex_unlock(&psmouse_mutex); |
1da177e4 LT |
1314 | return rc; |
1315 | } | |
1316 | ||
1317 | static struct serio_device_id psmouse_serio_ids[] = { | |
1318 | { | |
1319 | .type = SERIO_8042, | |
1320 | .proto = SERIO_ANY, | |
1321 | .id = SERIO_ANY, | |
1322 | .extra = SERIO_ANY, | |
1323 | }, | |
1324 | { | |
1325 | .type = SERIO_PS_PSTHRU, | |
1326 | .proto = SERIO_ANY, | |
1327 | .id = SERIO_ANY, | |
1328 | .extra = SERIO_ANY, | |
1329 | }, | |
1330 | { 0 } | |
1331 | }; | |
1332 | ||
1333 | MODULE_DEVICE_TABLE(serio, psmouse_serio_ids); | |
1334 | ||
1335 | static struct serio_driver psmouse_drv = { | |
1336 | .driver = { | |
1337 | .name = "psmouse", | |
1338 | }, | |
1339 | .description = DRIVER_DESC, | |
1340 | .id_table = psmouse_serio_ids, | |
1341 | .interrupt = psmouse_interrupt, | |
1342 | .connect = psmouse_connect, | |
1343 | .reconnect = psmouse_reconnect, | |
1344 | .disconnect = psmouse_disconnect, | |
1345 | .cleanup = psmouse_cleanup, | |
1346 | }; | |
1347 | ||
cfe9e888 DT |
1348 | ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *devattr, |
1349 | char *buf) | |
1da177e4 LT |
1350 | { |
1351 | struct serio *serio = to_serio_port(dev); | |
cfe9e888 DT |
1352 | struct psmouse_attribute *attr = to_psmouse_attr(devattr); |
1353 | struct psmouse *psmouse; | |
1da177e4 LT |
1354 | int retval; |
1355 | ||
1356 | retval = serio_pin_driver(serio); | |
1357 | if (retval) | |
1358 | return retval; | |
1359 | ||
1360 | if (serio->drv != &psmouse_drv) { | |
1361 | retval = -ENODEV; | |
1362 | goto out; | |
1363 | } | |
1364 | ||
cfe9e888 DT |
1365 | psmouse = serio_get_drvdata(serio); |
1366 | ||
1367 | retval = attr->show(psmouse, attr->data, buf); | |
1da177e4 LT |
1368 | |
1369 | out: | |
1370 | serio_unpin_driver(serio); | |
1371 | return retval; | |
1372 | } | |
1373 | ||
cfe9e888 DT |
1374 | ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *devattr, |
1375 | const char *buf, size_t count) | |
1da177e4 LT |
1376 | { |
1377 | struct serio *serio = to_serio_port(dev); | |
cfe9e888 DT |
1378 | struct psmouse_attribute *attr = to_psmouse_attr(devattr); |
1379 | struct psmouse *psmouse, *parent = NULL; | |
1da177e4 LT |
1380 | int retval; |
1381 | ||
1382 | retval = serio_pin_driver(serio); | |
1383 | if (retval) | |
1384 | return retval; | |
1385 | ||
1386 | if (serio->drv != &psmouse_drv) { | |
1387 | retval = -ENODEV; | |
04df1925 DT |
1388 | goto out_unpin; |
1389 | } | |
1390 | ||
c14471dc | 1391 | retval = mutex_lock_interruptible(&psmouse_mutex); |
04df1925 DT |
1392 | if (retval) |
1393 | goto out_unpin; | |
1394 | ||
cfe9e888 DT |
1395 | psmouse = serio_get_drvdata(serio); |
1396 | ||
04df1925 DT |
1397 | if (psmouse->state == PSMOUSE_IGNORE) { |
1398 | retval = -ENODEV; | |
c14471dc | 1399 | goto out_unlock; |
1da177e4 LT |
1400 | } |
1401 | ||
1402 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { | |
1403 | parent = serio_get_drvdata(serio->parent); | |
1404 | psmouse_deactivate(parent); | |
1405 | } | |
dbf4ccd6 | 1406 | |
1da177e4 LT |
1407 | psmouse_deactivate(psmouse); |
1408 | ||
cfe9e888 | 1409 | retval = attr->set(psmouse, attr->data, buf, count); |
1da177e4 | 1410 | |
dbf4ccd6 DT |
1411 | if (retval != -ENODEV) |
1412 | psmouse_activate(psmouse); | |
1413 | ||
1da177e4 LT |
1414 | if (parent) |
1415 | psmouse_activate(parent); | |
1416 | ||
c14471dc IM |
1417 | out_unlock: |
1418 | mutex_unlock(&psmouse_mutex); | |
04df1925 | 1419 | out_unpin: |
1da177e4 LT |
1420 | serio_unpin_driver(serio); |
1421 | return retval; | |
1422 | } | |
1423 | ||
cfe9e888 DT |
1424 | static ssize_t psmouse_show_int_attr(struct psmouse *psmouse, void *offset, char *buf) |
1425 | { | |
eb5d5829 | 1426 | unsigned int *field = (unsigned int *)((char *)psmouse + (size_t)offset); |
cfe9e888 | 1427 | |
eb5d5829 | 1428 | return sprintf(buf, "%u\n", *field); |
cfe9e888 DT |
1429 | } |
1430 | ||
1431 | static ssize_t psmouse_set_int_attr(struct psmouse *psmouse, void *offset, const char *buf, size_t count) | |
1432 | { | |
eb5d5829 | 1433 | unsigned int *field = (unsigned int *)((char *)psmouse + (size_t)offset); |
cfe9e888 DT |
1434 | unsigned long value; |
1435 | char *rest; | |
1436 | ||
1437 | value = simple_strtoul(buf, &rest, 10); | |
1438 | if (*rest) | |
1439 | return -EINVAL; | |
1440 | ||
eb5d5829 SV |
1441 | if ((unsigned int)value != value) |
1442 | return -EINVAL; | |
1443 | ||
cfe9e888 DT |
1444 | *field = value; |
1445 | ||
1446 | return count; | |
1447 | } | |
1448 | ||
1449 | static ssize_t psmouse_attr_show_protocol(struct psmouse *psmouse, void *data, char *buf) | |
dbf4ccd6 DT |
1450 | { |
1451 | return sprintf(buf, "%s\n", psmouse_protocol_by_type(psmouse->type)->name); | |
1452 | } | |
1453 | ||
cfe9e888 | 1454 | static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, const char *buf, size_t count) |
dbf4ccd6 DT |
1455 | { |
1456 | struct serio *serio = psmouse->ps2dev.serio; | |
1457 | struct psmouse *parent = NULL; | |
72155615 DT |
1458 | struct input_dev *old_dev, *new_dev; |
1459 | const struct psmouse_protocol *proto, *old_proto; | |
1460 | int error; | |
dbf4ccd6 DT |
1461 | int retry = 0; |
1462 | ||
72155615 DT |
1463 | proto = psmouse_protocol_by_name(buf, count); |
1464 | if (!proto) | |
dbf4ccd6 DT |
1465 | return -EINVAL; |
1466 | ||
1467 | if (psmouse->type == proto->type) | |
1468 | return count; | |
1469 | ||
72155615 DT |
1470 | new_dev = input_allocate_device(); |
1471 | if (!new_dev) | |
2e5b636b DT |
1472 | return -ENOMEM; |
1473 | ||
dbf4ccd6 DT |
1474 | while (serio->child) { |
1475 | if (++retry > 3) { | |
1476 | printk(KERN_WARNING "psmouse: failed to destroy child port, protocol change aborted.\n"); | |
2e5b636b | 1477 | input_free_device(new_dev); |
dbf4ccd6 DT |
1478 | return -EIO; |
1479 | } | |
1480 | ||
c14471dc | 1481 | mutex_unlock(&psmouse_mutex); |
dbf4ccd6 DT |
1482 | serio_unpin_driver(serio); |
1483 | serio_unregister_child_port(serio); | |
1484 | serio_pin_driver_uninterruptible(serio); | |
c14471dc | 1485 | mutex_lock(&psmouse_mutex); |
dbf4ccd6 | 1486 | |
2e5b636b DT |
1487 | if (serio->drv != &psmouse_drv) { |
1488 | input_free_device(new_dev); | |
dbf4ccd6 | 1489 | return -ENODEV; |
2e5b636b | 1490 | } |
dbf4ccd6 | 1491 | |
2e5b636b DT |
1492 | if (psmouse->type == proto->type) { |
1493 | input_free_device(new_dev); | |
dbf4ccd6 | 1494 | return count; /* switched by other thread */ |
2e5b636b | 1495 | } |
dbf4ccd6 DT |
1496 | } |
1497 | ||
1498 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { | |
1499 | parent = serio_get_drvdata(serio->parent); | |
1500 | if (parent->pt_deactivate) | |
1501 | parent->pt_deactivate(parent); | |
1502 | } | |
1503 | ||
72155615 DT |
1504 | old_dev = psmouse->dev; |
1505 | old_proto = psmouse_protocol_by_type(psmouse->type); | |
1506 | ||
dbf4ccd6 DT |
1507 | if (psmouse->disconnect) |
1508 | psmouse->disconnect(psmouse); | |
1509 | ||
1510 | psmouse_set_state(psmouse, PSMOUSE_IGNORE); | |
dbf4ccd6 | 1511 | |
2e5b636b | 1512 | psmouse->dev = new_dev; |
dbf4ccd6 DT |
1513 | psmouse_set_state(psmouse, PSMOUSE_INITIALIZING); |
1514 | ||
1515 | if (psmouse_switch_protocol(psmouse, proto) < 0) { | |
1516 | psmouse_reset(psmouse); | |
1517 | /* default to PSMOUSE_PS2 */ | |
1518 | psmouse_switch_protocol(psmouse, &psmouse_protocols[0]); | |
1519 | } | |
1520 | ||
1521 | psmouse_initialize(psmouse); | |
1522 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); | |
1523 | ||
72155615 DT |
1524 | error = input_register_device(psmouse->dev); |
1525 | if (error) { | |
1526 | if (psmouse->disconnect) | |
1527 | psmouse->disconnect(psmouse); | |
1528 | ||
1529 | psmouse_set_state(psmouse, PSMOUSE_IGNORE); | |
1530 | input_free_device(new_dev); | |
1531 | psmouse->dev = old_dev; | |
1532 | psmouse_set_state(psmouse, PSMOUSE_INITIALIZING); | |
1533 | psmouse_switch_protocol(psmouse, old_proto); | |
1534 | psmouse_initialize(psmouse); | |
1535 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); | |
1536 | ||
1537 | return error; | |
1538 | } | |
1539 | ||
1540 | input_unregister_device(old_dev); | |
dbf4ccd6 DT |
1541 | |
1542 | if (parent && parent->pt_activate) | |
1543 | parent->pt_activate(parent); | |
1544 | ||
1545 | return count; | |
1546 | } | |
1547 | ||
cfe9e888 | 1548 | static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, void *data, const char *buf, size_t count) |
1da177e4 LT |
1549 | { |
1550 | unsigned long value; | |
1551 | char *rest; | |
1552 | ||
1553 | value = simple_strtoul(buf, &rest, 10); | |
1554 | if (*rest) | |
1555 | return -EINVAL; | |
1556 | ||
1557 | psmouse->set_rate(psmouse, value); | |
1558 | return count; | |
1559 | } | |
1560 | ||
cfe9e888 | 1561 | static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, void *data, const char *buf, size_t count) |
1da177e4 LT |
1562 | { |
1563 | unsigned long value; | |
1564 | char *rest; | |
1565 | ||
1566 | value = simple_strtoul(buf, &rest, 10); | |
1567 | if (*rest) | |
1568 | return -EINVAL; | |
1569 | ||
1570 | psmouse->set_resolution(psmouse, value); | |
1571 | return count; | |
1572 | } | |
1573 | ||
1da177e4 LT |
1574 | |
1575 | static int psmouse_set_maxproto(const char *val, struct kernel_param *kp) | |
1576 | { | |
e38de678 | 1577 | const struct psmouse_protocol *proto; |
1da177e4 LT |
1578 | |
1579 | if (!val) | |
1580 | return -EINVAL; | |
1581 | ||
dbf4ccd6 | 1582 | proto = psmouse_protocol_by_name(val, strlen(val)); |
1da177e4 | 1583 | |
dbf4ccd6 DT |
1584 | if (!proto || !proto->maxproto) |
1585 | return -EINVAL; | |
1da177e4 | 1586 | |
dbf4ccd6 | 1587 | *((unsigned int *)kp->arg) = proto->type; |
1da177e4 | 1588 | |
541e316a | 1589 | return 0; |
1da177e4 LT |
1590 | } |
1591 | ||
1592 | static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp) | |
1593 | { | |
dbf4ccd6 DT |
1594 | int type = *((unsigned int *)kp->arg); |
1595 | ||
1596 | return sprintf(buffer, "%s\n", psmouse_protocol_by_type(type)->name); | |
1da177e4 LT |
1597 | } |
1598 | ||
1599 | static int __init psmouse_init(void) | |
1600 | { | |
153a9df0 AM |
1601 | int err; |
1602 | ||
f0d5c6f4 DT |
1603 | kpsmoused_wq = create_singlethread_workqueue("kpsmoused"); |
1604 | if (!kpsmoused_wq) { | |
1605 | printk(KERN_ERR "psmouse: failed to create kpsmoused workqueue\n"); | |
1606 | return -ENOMEM; | |
1607 | } | |
1608 | ||
153a9df0 AM |
1609 | err = serio_register_driver(&psmouse_drv); |
1610 | if (err) | |
1611 | destroy_workqueue(kpsmoused_wq); | |
f0d5c6f4 | 1612 | |
153a9df0 | 1613 | return err; |
1da177e4 LT |
1614 | } |
1615 | ||
1616 | static void __exit psmouse_exit(void) | |
1617 | { | |
1618 | serio_unregister_driver(&psmouse_drv); | |
f0d5c6f4 | 1619 | destroy_workqueue(kpsmoused_wq); |
1da177e4 LT |
1620 | } |
1621 | ||
1622 | module_init(psmouse_init); | |
1623 | module_exit(psmouse_exit); |