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Commit | Line | Data |
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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> | |
1da177e4 LT |
16 | #include <linux/slab.h> |
17 | #include <linux/interrupt.h> | |
18 | #include <linux/input.h> | |
19 | #include <linux/serio.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/libps2.h> | |
c14471dc IM |
22 | #include <linux/mutex.h> |
23 | ||
1da177e4 LT |
24 | #include "psmouse.h" |
25 | #include "synaptics.h" | |
26 | #include "logips2pp.h" | |
27 | #include "alps.h" | |
02d7f589 | 28 | #include "lifebook.h" |
541e316a | 29 | #include "trackpoint.h" |
24bf10ab | 30 | #include "touchkit_ps2.h" |
1da177e4 LT |
31 | |
32 | #define DRIVER_DESC "PS/2 mouse driver" | |
33 | ||
34 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>"); | |
35 | MODULE_DESCRIPTION(DRIVER_DESC); | |
36 | MODULE_LICENSE("GPL"); | |
37 | ||
dbf4ccd6 | 38 | static unsigned int psmouse_max_proto = PSMOUSE_AUTO; |
1da177e4 LT |
39 | static int psmouse_set_maxproto(const char *val, struct kernel_param *kp); |
40 | static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp); | |
1da177e4 LT |
41 | #define param_check_proto_abbrev(name, p) __param_check(name, p, unsigned int) |
42 | #define param_set_proto_abbrev psmouse_set_maxproto | |
43 | #define param_get_proto_abbrev psmouse_get_maxproto | |
44 | module_param_named(proto, psmouse_max_proto, proto_abbrev, 0644); | |
dbf4ccd6 | 45 | MODULE_PARM_DESC(proto, "Highest protocol extension to probe (bare, imps, exps, any). Useful for KVM switches."); |
1da177e4 LT |
46 | |
47 | static unsigned int psmouse_resolution = 200; | |
48 | module_param_named(resolution, psmouse_resolution, uint, 0644); | |
49 | MODULE_PARM_DESC(resolution, "Resolution, in dpi."); | |
50 | ||
51 | static unsigned int psmouse_rate = 100; | |
52 | module_param_named(rate, psmouse_rate, uint, 0644); | |
53 | MODULE_PARM_DESC(rate, "Report rate, in reports per second."); | |
54 | ||
55 | static unsigned int psmouse_smartscroll = 1; | |
56 | module_param_named(smartscroll, psmouse_smartscroll, bool, 0644); | |
57 | MODULE_PARM_DESC(smartscroll, "Logitech Smartscroll autorepeat, 1 = enabled (default), 0 = disabled."); | |
58 | ||
f0d5c6f4 | 59 | static unsigned int psmouse_resetafter = 5; |
1da177e4 LT |
60 | module_param_named(resetafter, psmouse_resetafter, uint, 0644); |
61 | MODULE_PARM_DESC(resetafter, "Reset device after so many bad packets (0 = never)."); | |
62 | ||
8bd0ee93 | 63 | static unsigned int psmouse_resync_time; |
f0d5c6f4 DT |
64 | module_param_named(resync_time, psmouse_resync_time, uint, 0644); |
65 | MODULE_PARM_DESC(resync_time, "How long can mouse stay idle before forcing resync (in seconds, 0 = never)."); | |
66 | ||
cfe9e888 DT |
67 | PSMOUSE_DEFINE_ATTR(protocol, S_IWUSR | S_IRUGO, |
68 | NULL, | |
69 | psmouse_attr_show_protocol, psmouse_attr_set_protocol); | |
70 | PSMOUSE_DEFINE_ATTR(rate, S_IWUSR | S_IRUGO, | |
71 | (void *) offsetof(struct psmouse, rate), | |
72 | psmouse_show_int_attr, psmouse_attr_set_rate); | |
73 | PSMOUSE_DEFINE_ATTR(resolution, S_IWUSR | S_IRUGO, | |
74 | (void *) offsetof(struct psmouse, resolution), | |
75 | psmouse_show_int_attr, psmouse_attr_set_resolution); | |
76 | PSMOUSE_DEFINE_ATTR(resetafter, S_IWUSR | S_IRUGO, | |
77 | (void *) offsetof(struct psmouse, resetafter), | |
78 | psmouse_show_int_attr, psmouse_set_int_attr); | |
f0d5c6f4 DT |
79 | PSMOUSE_DEFINE_ATTR(resync_time, S_IWUSR | S_IRUGO, |
80 | (void *) offsetof(struct psmouse, resync_time), | |
81 | psmouse_show_int_attr, psmouse_set_int_attr); | |
cfe9e888 DT |
82 | |
83 | static struct attribute *psmouse_attributes[] = { | |
84 | &psmouse_attr_protocol.dattr.attr, | |
85 | &psmouse_attr_rate.dattr.attr, | |
86 | &psmouse_attr_resolution.dattr.attr, | |
87 | &psmouse_attr_resetafter.dattr.attr, | |
f0d5c6f4 | 88 | &psmouse_attr_resync_time.dattr.attr, |
cfe9e888 DT |
89 | NULL |
90 | }; | |
91 | ||
92 | static struct attribute_group psmouse_attribute_group = { | |
93 | .attrs = psmouse_attributes, | |
94 | }; | |
1da177e4 | 95 | |
04df1925 | 96 | /* |
c14471dc | 97 | * psmouse_mutex protects all operations changing state of mouse |
04df1925 DT |
98 | * (connecting, disconnecting, changing rate or resolution via |
99 | * sysfs). We could use a per-device semaphore but since there | |
100 | * rarely more than one PS/2 mouse connected and since semaphore | |
101 | * is taken in "slow" paths it is not worth it. | |
102 | */ | |
c14471dc | 103 | static DEFINE_MUTEX(psmouse_mutex); |
04df1925 | 104 | |
f0d5c6f4 DT |
105 | static struct workqueue_struct *kpsmoused_wq; |
106 | ||
dbf4ccd6 DT |
107 | struct psmouse_protocol { |
108 | enum psmouse_type type; | |
e38de678 HD |
109 | const char *name; |
110 | const char *alias; | |
dbf4ccd6 DT |
111 | int maxproto; |
112 | int (*detect)(struct psmouse *, int); | |
113 | int (*init)(struct psmouse *); | |
114 | }; | |
1da177e4 LT |
115 | |
116 | /* | |
117 | * psmouse_process_byte() analyzes the PS/2 data stream and reports | |
118 | * relevant events to the input module once full packet has arrived. | |
119 | */ | |
120 | ||
7d12e780 | 121 | static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse) |
1da177e4 | 122 | { |
2e5b636b | 123 | struct input_dev *dev = psmouse->dev; |
1da177e4 LT |
124 | unsigned char *packet = psmouse->packet; |
125 | ||
126 | if (psmouse->pktcnt < psmouse->pktsize) | |
127 | return PSMOUSE_GOOD_DATA; | |
128 | ||
129 | /* | |
130 | * Full packet accumulated, process it | |
131 | */ | |
132 | ||
1da177e4 LT |
133 | /* |
134 | * Scroll wheel on IntelliMice, scroll buttons on NetMice | |
135 | */ | |
136 | ||
137 | if (psmouse->type == PSMOUSE_IMPS || psmouse->type == PSMOUSE_GENPS) | |
138 | input_report_rel(dev, REL_WHEEL, -(signed char) packet[3]); | |
139 | ||
140 | /* | |
141 | * Scroll wheel and buttons on IntelliMouse Explorer | |
142 | */ | |
143 | ||
144 | if (psmouse->type == PSMOUSE_IMEX) { | |
b0c9ad8e PB |
145 | switch (packet[3] & 0xC0) { |
146 | case 0x80: /* vertical scroll on IntelliMouse Explorer 4.0 */ | |
147 | input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 32) - (int) (packet[3] & 31)); | |
148 | break; | |
149 | case 0x40: /* horizontal scroll on IntelliMouse Explorer 4.0 */ | |
150 | input_report_rel(dev, REL_HWHEEL, (int) (packet[3] & 32) - (int) (packet[3] & 31)); | |
151 | break; | |
152 | case 0x00: | |
153 | case 0xC0: | |
154 | input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 8) - (int) (packet[3] & 7)); | |
155 | input_report_key(dev, BTN_SIDE, (packet[3] >> 4) & 1); | |
156 | input_report_key(dev, BTN_EXTRA, (packet[3] >> 5) & 1); | |
157 | break; | |
158 | } | |
1da177e4 LT |
159 | } |
160 | ||
161 | /* | |
162 | * Extra buttons on Genius NewNet 3D | |
163 | */ | |
164 | ||
165 | if (psmouse->type == PSMOUSE_GENPS) { | |
166 | input_report_key(dev, BTN_SIDE, (packet[0] >> 6) & 1); | |
167 | input_report_key(dev, BTN_EXTRA, (packet[0] >> 7) & 1); | |
168 | } | |
169 | ||
170 | /* | |
171 | * Extra button on ThinkingMouse | |
172 | */ | |
173 | if (psmouse->type == PSMOUSE_THINKPS) { | |
174 | input_report_key(dev, BTN_EXTRA, (packet[0] >> 3) & 1); | |
175 | /* Without this bit of weirdness moving up gives wildly high Y changes. */ | |
176 | packet[1] |= (packet[0] & 0x40) << 1; | |
177 | } | |
178 | ||
aea6a461 AR |
179 | /* |
180 | * Cortron PS2 Trackball reports SIDE button on the 4th bit of the first | |
181 | * byte. | |
182 | */ | |
183 | if (psmouse->type == PSMOUSE_CORTRON) { | |
184 | input_report_key(dev, BTN_SIDE, (packet[0] >> 3) & 1); | |
185 | packet[0] |= 0x08; | |
186 | } | |
187 | ||
1da177e4 LT |
188 | /* |
189 | * Generic PS/2 Mouse | |
190 | */ | |
191 | ||
192 | input_report_key(dev, BTN_LEFT, packet[0] & 1); | |
193 | input_report_key(dev, BTN_MIDDLE, (packet[0] >> 2) & 1); | |
194 | input_report_key(dev, BTN_RIGHT, (packet[0] >> 1) & 1); | |
195 | ||
196 | input_report_rel(dev, REL_X, packet[1] ? (int) packet[1] - (int) ((packet[0] << 4) & 0x100) : 0); | |
197 | input_report_rel(dev, REL_Y, packet[2] ? (int) ((packet[0] << 3) & 0x100) - (int) packet[2] : 0); | |
198 | ||
199 | input_sync(dev); | |
200 | ||
201 | return PSMOUSE_FULL_PACKET; | |
202 | } | |
203 | ||
8bf020ee AS |
204 | void psmouse_queue_work(struct psmouse *psmouse, struct delayed_work *work, |
205 | unsigned long delay) | |
206 | { | |
207 | queue_delayed_work(kpsmoused_wq, work, delay); | |
208 | } | |
209 | ||
1da177e4 | 210 | /* |
f0d5c6f4 DT |
211 | * __psmouse_set_state() sets new psmouse state and resets all flags. |
212 | */ | |
213 | ||
214 | static inline void __psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state) | |
215 | { | |
216 | psmouse->state = new_state; | |
217 | psmouse->pktcnt = psmouse->out_of_sync = 0; | |
218 | psmouse->ps2dev.flags = 0; | |
219 | psmouse->last = jiffies; | |
220 | } | |
221 | ||
222 | ||
223 | /* | |
224 | * psmouse_set_state() sets new psmouse state and resets all flags and | |
225 | * counters while holding serio lock so fighting with interrupt handler | |
226 | * is not a concern. | |
227 | */ | |
228 | ||
a48cf5f3 | 229 | void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state) |
f0d5c6f4 DT |
230 | { |
231 | serio_pause_rx(psmouse->ps2dev.serio); | |
232 | __psmouse_set_state(psmouse, new_state); | |
233 | serio_continue_rx(psmouse->ps2dev.serio); | |
234 | } | |
235 | ||
236 | /* | |
237 | * psmouse_handle_byte() processes one byte of the input data stream | |
238 | * by calling corresponding protocol handler. | |
239 | */ | |
240 | ||
7d12e780 | 241 | static int psmouse_handle_byte(struct psmouse *psmouse) |
f0d5c6f4 | 242 | { |
7d12e780 | 243 | psmouse_ret_t rc = psmouse->protocol_handler(psmouse); |
f0d5c6f4 DT |
244 | |
245 | switch (rc) { | |
246 | case PSMOUSE_BAD_DATA: | |
247 | if (psmouse->state == PSMOUSE_ACTIVATED) { | |
248 | printk(KERN_WARNING "psmouse.c: %s at %s lost sync at byte %d\n", | |
249 | psmouse->name, psmouse->phys, psmouse->pktcnt); | |
250 | if (++psmouse->out_of_sync == psmouse->resetafter) { | |
251 | __psmouse_set_state(psmouse, PSMOUSE_IGNORE); | |
252 | printk(KERN_NOTICE "psmouse.c: issuing reconnect request\n"); | |
253 | serio_reconnect(psmouse->ps2dev.serio); | |
254 | return -1; | |
255 | } | |
256 | } | |
257 | psmouse->pktcnt = 0; | |
258 | break; | |
259 | ||
260 | case PSMOUSE_FULL_PACKET: | |
261 | psmouse->pktcnt = 0; | |
262 | if (psmouse->out_of_sync) { | |
263 | psmouse->out_of_sync = 0; | |
264 | printk(KERN_NOTICE "psmouse.c: %s at %s - driver resynched.\n", | |
265 | psmouse->name, psmouse->phys); | |
266 | } | |
267 | break; | |
268 | ||
269 | case PSMOUSE_GOOD_DATA: | |
270 | break; | |
271 | } | |
272 | return 0; | |
273 | } | |
274 | ||
275 | /* | |
276 | * psmouse_interrupt() handles incoming characters, either passing them | |
277 | * for normal processing or gathering them as command response. | |
1da177e4 LT |
278 | */ |
279 | ||
280 | static irqreturn_t psmouse_interrupt(struct serio *serio, | |
7d12e780 | 281 | unsigned char data, unsigned int flags) |
1da177e4 LT |
282 | { |
283 | struct psmouse *psmouse = serio_get_drvdata(serio); | |
1da177e4 LT |
284 | |
285 | if (psmouse->state == PSMOUSE_IGNORE) | |
286 | goto out; | |
287 | ||
288 | if (flags & (SERIO_PARITY|SERIO_TIMEOUT)) { | |
289 | if (psmouse->state == PSMOUSE_ACTIVATED) | |
290 | printk(KERN_WARNING "psmouse.c: bad data from KBC -%s%s\n", | |
291 | flags & SERIO_TIMEOUT ? " timeout" : "", | |
292 | flags & SERIO_PARITY ? " bad parity" : ""); | |
293 | ps2_cmd_aborted(&psmouse->ps2dev); | |
294 | goto out; | |
295 | } | |
296 | ||
297 | if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_ACK)) | |
298 | if (ps2_handle_ack(&psmouse->ps2dev, data)) | |
299 | goto out; | |
300 | ||
301 | if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_CMD)) | |
302 | if (ps2_handle_response(&psmouse->ps2dev, data)) | |
303 | goto out; | |
304 | ||
f0d5c6f4 | 305 | if (psmouse->state <= PSMOUSE_RESYNCING) |
1da177e4 LT |
306 | goto out; |
307 | ||
308 | if (psmouse->state == PSMOUSE_ACTIVATED && | |
309 | psmouse->pktcnt && time_after(jiffies, psmouse->last + HZ/2)) { | |
f0d5c6f4 | 310 | printk(KERN_INFO "psmouse.c: %s at %s lost synchronization, throwing %d bytes away.\n", |
1da177e4 | 311 | psmouse->name, psmouse->phys, psmouse->pktcnt); |
f0d5c6f4 DT |
312 | psmouse->badbyte = psmouse->packet[0]; |
313 | __psmouse_set_state(psmouse, PSMOUSE_RESYNCING); | |
8bf020ee | 314 | psmouse_queue_work(psmouse, &psmouse->resync_work, 0); |
f0d5c6f4 | 315 | goto out; |
1da177e4 LT |
316 | } |
317 | ||
1da177e4 | 318 | psmouse->packet[psmouse->pktcnt++] = data; |
f0d5c6f4 DT |
319 | /* |
320 | * Check if this is a new device announcement (0xAA 0x00) | |
321 | */ | |
322 | if (unlikely(psmouse->packet[0] == PSMOUSE_RET_BAT && psmouse->pktcnt <= 2)) { | |
89c9b480 DT |
323 | if (psmouse->pktcnt == 1) { |
324 | psmouse->last = jiffies; | |
1da177e4 | 325 | goto out; |
89c9b480 | 326 | } |
1da177e4 | 327 | |
f0d5c6f4 DT |
328 | if (psmouse->packet[1] == PSMOUSE_RET_ID) { |
329 | __psmouse_set_state(psmouse, PSMOUSE_IGNORE); | |
330 | serio_reconnect(serio); | |
331 | goto out; | |
1da177e4 | 332 | } |
f0d5c6f4 DT |
333 | /* |
334 | * Not a new device, try processing first byte normally | |
335 | */ | |
336 | psmouse->pktcnt = 1; | |
7d12e780 | 337 | if (psmouse_handle_byte(psmouse)) |
f0d5c6f4 | 338 | goto out; |
1da177e4 | 339 | |
f0d5c6f4 DT |
340 | psmouse->packet[psmouse->pktcnt++] = data; |
341 | } | |
1da177e4 | 342 | |
f0d5c6f4 DT |
343 | /* |
344 | * See if we need to force resync because mouse was idle for too long | |
345 | */ | |
346 | if (psmouse->state == PSMOUSE_ACTIVATED && | |
347 | psmouse->pktcnt == 1 && psmouse->resync_time && | |
348 | time_after(jiffies, psmouse->last + psmouse->resync_time * HZ)) { | |
349 | psmouse->badbyte = psmouse->packet[0]; | |
350 | __psmouse_set_state(psmouse, PSMOUSE_RESYNCING); | |
8bf020ee | 351 | psmouse_queue_work(psmouse, &psmouse->resync_work, 0); |
f0d5c6f4 DT |
352 | goto out; |
353 | } | |
1da177e4 | 354 | |
f0d5c6f4 | 355 | psmouse->last = jiffies; |
7d12e780 | 356 | psmouse_handle_byte(psmouse); |
1da177e4 | 357 | |
f0d5c6f4 | 358 | out: |
1da177e4 LT |
359 | return IRQ_HANDLED; |
360 | } | |
361 | ||
362 | ||
363 | /* | |
364 | * psmouse_sliced_command() sends an extended PS/2 command to the mouse | |
365 | * using sliced syntax, understood by advanced devices, such as Logitech | |
366 | * or Synaptics touchpads. The command is encoded as: | |
367 | * 0xE6 0xE8 rr 0xE8 ss 0xE8 tt 0xE8 uu where (rr*64)+(ss*16)+(tt*4)+uu | |
368 | * is the command. | |
369 | */ | |
370 | int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command) | |
371 | { | |
372 | int i; | |
373 | ||
374 | if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11)) | |
375 | return -1; | |
376 | ||
377 | for (i = 6; i >= 0; i -= 2) { | |
378 | unsigned char d = (command >> i) & 3; | |
379 | if (ps2_command(&psmouse->ps2dev, &d, PSMOUSE_CMD_SETRES)) | |
380 | return -1; | |
381 | } | |
382 | ||
383 | return 0; | |
384 | } | |
385 | ||
386 | ||
387 | /* | |
388 | * psmouse_reset() resets the mouse into power-on state. | |
389 | */ | |
390 | int psmouse_reset(struct psmouse *psmouse) | |
391 | { | |
392 | unsigned char param[2]; | |
393 | ||
394 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_RESET_BAT)) | |
395 | return -1; | |
396 | ||
397 | if (param[0] != PSMOUSE_RET_BAT && param[1] != PSMOUSE_RET_ID) | |
398 | return -1; | |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
403 | ||
404 | /* | |
405 | * Genius NetMouse magic init. | |
406 | */ | |
407 | static int genius_detect(struct psmouse *psmouse, int set_properties) | |
408 | { | |
409 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
410 | unsigned char param[4]; | |
411 | ||
412 | param[0] = 3; | |
413 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
414 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
415 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
416 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
417 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); | |
418 | ||
419 | if (param[0] != 0x00 || param[1] != 0x33 || param[2] != 0x55) | |
420 | return -1; | |
421 | ||
422 | if (set_properties) { | |
2e5b636b DT |
423 | set_bit(BTN_EXTRA, psmouse->dev->keybit); |
424 | set_bit(BTN_SIDE, psmouse->dev->keybit); | |
425 | set_bit(REL_WHEEL, psmouse->dev->relbit); | |
1da177e4 LT |
426 | |
427 | psmouse->vendor = "Genius"; | |
a3f3f317 | 428 | psmouse->name = "Mouse"; |
1da177e4 LT |
429 | psmouse->pktsize = 4; |
430 | } | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
435 | /* | |
436 | * IntelliMouse magic init. | |
437 | */ | |
438 | static int intellimouse_detect(struct psmouse *psmouse, int set_properties) | |
439 | { | |
440 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
441 | unsigned char param[2]; | |
442 | ||
443 | param[0] = 200; | |
444 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
445 | param[0] = 100; | |
446 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
447 | param[0] = 80; | |
448 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
449 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); | |
450 | ||
451 | if (param[0] != 3) | |
452 | return -1; | |
453 | ||
454 | if (set_properties) { | |
2e5b636b DT |
455 | set_bit(BTN_MIDDLE, psmouse->dev->keybit); |
456 | set_bit(REL_WHEEL, psmouse->dev->relbit); | |
1da177e4 LT |
457 | |
458 | if (!psmouse->vendor) psmouse->vendor = "Generic"; | |
459 | if (!psmouse->name) psmouse->name = "Wheel Mouse"; | |
460 | psmouse->pktsize = 4; | |
461 | } | |
462 | ||
463 | return 0; | |
464 | } | |
465 | ||
466 | /* | |
467 | * Try IntelliMouse/Explorer magic init. | |
468 | */ | |
469 | static int im_explorer_detect(struct psmouse *psmouse, int set_properties) | |
470 | { | |
471 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
472 | unsigned char param[2]; | |
473 | ||
474 | intellimouse_detect(psmouse, 0); | |
475 | ||
476 | param[0] = 200; | |
477 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
478 | param[0] = 200; | |
479 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
480 | param[0] = 80; | |
481 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
482 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); | |
483 | ||
484 | if (param[0] != 4) | |
485 | return -1; | |
486 | ||
b0c9ad8e PB |
487 | /* Magic to enable horizontal scrolling on IntelliMouse 4.0 */ |
488 | param[0] = 200; | |
489 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
490 | param[0] = 80; | |
491 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
492 | param[0] = 40; | |
493 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
494 | ||
1da177e4 | 495 | if (set_properties) { |
2e5b636b DT |
496 | set_bit(BTN_MIDDLE, psmouse->dev->keybit); |
497 | set_bit(REL_WHEEL, psmouse->dev->relbit); | |
b0c9ad8e | 498 | set_bit(REL_HWHEEL, psmouse->dev->relbit); |
2e5b636b DT |
499 | set_bit(BTN_SIDE, psmouse->dev->keybit); |
500 | set_bit(BTN_EXTRA, psmouse->dev->keybit); | |
1da177e4 LT |
501 | |
502 | if (!psmouse->vendor) psmouse->vendor = "Generic"; | |
503 | if (!psmouse->name) psmouse->name = "Explorer Mouse"; | |
504 | psmouse->pktsize = 4; | |
505 | } | |
506 | ||
507 | return 0; | |
508 | } | |
509 | ||
510 | /* | |
511 | * Kensington ThinkingMouse / ExpertMouse magic init. | |
512 | */ | |
513 | static int thinking_detect(struct psmouse *psmouse, int set_properties) | |
514 | { | |
515 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
516 | unsigned char param[2]; | |
e38de678 | 517 | static const unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20 }; |
1da177e4 LT |
518 | int i; |
519 | ||
520 | param[0] = 10; | |
521 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
522 | param[0] = 0; | |
523 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
e38de678 HD |
524 | for (i = 0; i < ARRAY_SIZE(seq); i++) { |
525 | param[0] = seq[i]; | |
526 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); | |
527 | } | |
1da177e4 LT |
528 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); |
529 | ||
530 | if (param[0] != 2) | |
531 | return -1; | |
532 | ||
533 | if (set_properties) { | |
2e5b636b | 534 | set_bit(BTN_EXTRA, psmouse->dev->keybit); |
1da177e4 LT |
535 | |
536 | psmouse->vendor = "Kensington"; | |
537 | psmouse->name = "ThinkingMouse"; | |
538 | } | |
539 | ||
540 | return 0; | |
541 | } | |
542 | ||
543 | /* | |
544 | * Bare PS/2 protocol "detection". Always succeeds. | |
545 | */ | |
546 | static int ps2bare_detect(struct psmouse *psmouse, int set_properties) | |
547 | { | |
dbf4ccd6 DT |
548 | if (set_properties) { |
549 | if (!psmouse->vendor) psmouse->vendor = "Generic"; | |
550 | if (!psmouse->name) psmouse->name = "Mouse"; | |
551 | } | |
1da177e4 LT |
552 | |
553 | return 0; | |
554 | } | |
555 | ||
aea6a461 AR |
556 | /* |
557 | * Cortron PS/2 protocol detection. There's no special way to detect it, so it | |
558 | * must be forced by sysfs protocol writing. | |
559 | */ | |
560 | static int cortron_detect(struct psmouse *psmouse, int set_properties) | |
561 | { | |
562 | if (set_properties) { | |
563 | psmouse->vendor = "Cortron"; | |
564 | psmouse->name = "PS/2 Trackball"; | |
565 | set_bit(BTN_SIDE, psmouse->dev->keybit); | |
566 | } | |
567 | ||
568 | return 0; | |
569 | } | |
dbf4ccd6 | 570 | |
1da177e4 LT |
571 | /* |
572 | * psmouse_extensions() probes for any extensions to the basic PS/2 protocol | |
573 | * the mouse may have. | |
574 | */ | |
575 | ||
576 | static int psmouse_extensions(struct psmouse *psmouse, | |
577 | unsigned int max_proto, int set_properties) | |
578 | { | |
579 | int synaptics_hardware = 0; | |
580 | ||
a15d60f8 DT |
581 | /* |
582 | * We always check for lifebook because it does not disturb mouse | |
583 | * (it only checks DMI information). | |
584 | */ | |
dbf4ccd6 | 585 | if (lifebook_detect(psmouse, set_properties) == 0) { |
a15d60f8 DT |
586 | if (max_proto > PSMOUSE_IMEX) { |
587 | if (!set_properties || lifebook_init(psmouse) == 0) | |
588 | return PSMOUSE_LIFEBOOK; | |
589 | } | |
590 | } | |
02d7f589 | 591 | |
1da177e4 LT |
592 | /* |
593 | * Try Kensington ThinkingMouse (we try first, because synaptics probe | |
594 | * upsets the thinkingmouse). | |
595 | */ | |
596 | ||
597 | if (max_proto > PSMOUSE_IMEX && thinking_detect(psmouse, set_properties) == 0) | |
598 | return PSMOUSE_THINKPS; | |
599 | ||
600 | /* | |
55e3d922 AS |
601 | * Try Synaptics TouchPad. Note that probing is done even if Synaptics protocol |
602 | * support is disabled in config - we need to know if it is synaptics so we | |
603 | * can reset it properly after probing for intellimouse. | |
1da177e4 LT |
604 | */ |
605 | if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse, set_properties) == 0) { | |
606 | synaptics_hardware = 1; | |
607 | ||
608 | if (max_proto > PSMOUSE_IMEX) { | |
609 | if (!set_properties || synaptics_init(psmouse) == 0) | |
610 | return PSMOUSE_SYNAPTICS; | |
611 | /* | |
612 | * Some Synaptics touchpads can emulate extended protocols (like IMPS/2). | |
613 | * Unfortunately Logitech/Genius probes confuse some firmware versions so | |
614 | * we'll have to skip them. | |
615 | */ | |
616 | max_proto = PSMOUSE_IMEX; | |
617 | } | |
618 | /* | |
619 | * Make sure that touchpad is in relative mode, gestures (taps) are enabled | |
620 | */ | |
621 | synaptics_reset(psmouse); | |
622 | } | |
623 | ||
624 | /* | |
625 | * Try ALPS TouchPad | |
626 | */ | |
627 | if (max_proto > PSMOUSE_IMEX) { | |
628 | ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS); | |
629 | if (alps_detect(psmouse, set_properties) == 0) { | |
630 | if (!set_properties || alps_init(psmouse) == 0) | |
631 | return PSMOUSE_ALPS; | |
632 | /* | |
633 | * Init failed, try basic relative protocols | |
634 | */ | |
635 | max_proto = PSMOUSE_IMEX; | |
636 | } | |
637 | } | |
638 | ||
24bf10ab SL |
639 | if (max_proto > PSMOUSE_IMEX) { |
640 | ||
641 | if (genius_detect(psmouse, set_properties) == 0) | |
642 | return PSMOUSE_GENPS; | |
643 | ||
644 | if (ps2pp_init(psmouse, set_properties) == 0) | |
645 | return PSMOUSE_PS2PP; | |
1da177e4 | 646 | |
24bf10ab SL |
647 | if (trackpoint_detect(psmouse, set_properties) == 0) |
648 | return PSMOUSE_TRACKPOINT; | |
1da177e4 | 649 | |
24bf10ab SL |
650 | if (touchkit_ps2_detect(psmouse, set_properties) == 0) |
651 | return PSMOUSE_TOUCHKIT_PS2; | |
652 | } | |
ba44995a | 653 | |
1da177e4 LT |
654 | /* |
655 | * Reset to defaults in case the device got confused by extended | |
554fc193 AZ |
656 | * protocol probes. Note that we follow up with full reset because |
657 | * some mice put themselves to sleep when they see PSMOUSE_RESET_DIS. | |
1da177e4 | 658 | */ |
554fc193 | 659 | ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS); |
ba44995a | 660 | psmouse_reset(psmouse); |
1da177e4 LT |
661 | |
662 | if (max_proto >= PSMOUSE_IMEX && im_explorer_detect(psmouse, set_properties) == 0) | |
663 | return PSMOUSE_IMEX; | |
664 | ||
665 | if (max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse, set_properties) == 0) | |
666 | return PSMOUSE_IMPS; | |
667 | ||
668 | /* | |
669 | * Okay, all failed, we have a standard mouse here. The number of the buttons | |
670 | * is still a question, though. We assume 3. | |
671 | */ | |
672 | ps2bare_detect(psmouse, set_properties); | |
673 | ||
674 | if (synaptics_hardware) { | |
675 | /* | |
676 | * We detected Synaptics hardware but it did not respond to IMPS/2 probes. | |
677 | * We need to reset the touchpad because if there is a track point on the | |
678 | * pass through port it could get disabled while probing for protocol | |
679 | * extensions. | |
680 | */ | |
681 | psmouse_reset(psmouse); | |
1da177e4 LT |
682 | } |
683 | ||
684 | return PSMOUSE_PS2; | |
685 | } | |
686 | ||
e38de678 | 687 | static const struct psmouse_protocol psmouse_protocols[] = { |
dbf4ccd6 DT |
688 | { |
689 | .type = PSMOUSE_PS2, | |
690 | .name = "PS/2", | |
691 | .alias = "bare", | |
692 | .maxproto = 1, | |
693 | .detect = ps2bare_detect, | |
694 | }, | |
55e3d922 | 695 | #ifdef CONFIG_MOUSE_PS2_LOGIPS2PP |
dbf4ccd6 DT |
696 | { |
697 | .type = PSMOUSE_PS2PP, | |
698 | .name = "PS2++", | |
699 | .alias = "logitech", | |
700 | .detect = ps2pp_init, | |
701 | }, | |
55e3d922 | 702 | #endif |
dbf4ccd6 DT |
703 | { |
704 | .type = PSMOUSE_THINKPS, | |
705 | .name = "ThinkPS/2", | |
706 | .alias = "thinkps", | |
707 | .detect = thinking_detect, | |
708 | }, | |
709 | { | |
710 | .type = PSMOUSE_GENPS, | |
711 | .name = "GenPS/2", | |
712 | .alias = "genius", | |
713 | .detect = genius_detect, | |
714 | }, | |
715 | { | |
716 | .type = PSMOUSE_IMPS, | |
717 | .name = "ImPS/2", | |
718 | .alias = "imps", | |
719 | .maxproto = 1, | |
720 | .detect = intellimouse_detect, | |
721 | }, | |
722 | { | |
723 | .type = PSMOUSE_IMEX, | |
724 | .name = "ImExPS/2", | |
725 | .alias = "exps", | |
726 | .maxproto = 1, | |
727 | .detect = im_explorer_detect, | |
728 | }, | |
55e3d922 | 729 | #ifdef CONFIG_MOUSE_PS2_SYNAPTICS |
dbf4ccd6 DT |
730 | { |
731 | .type = PSMOUSE_SYNAPTICS, | |
732 | .name = "SynPS/2", | |
733 | .alias = "synaptics", | |
734 | .detect = synaptics_detect, | |
735 | .init = synaptics_init, | |
736 | }, | |
55e3d922 AS |
737 | #endif |
738 | #ifdef CONFIG_MOUSE_PS2_ALPS | |
dbf4ccd6 DT |
739 | { |
740 | .type = PSMOUSE_ALPS, | |
741 | .name = "AlpsPS/2", | |
742 | .alias = "alps", | |
743 | .detect = alps_detect, | |
744 | .init = alps_init, | |
745 | }, | |
55e3d922 AS |
746 | #endif |
747 | #ifdef CONFIG_MOUSE_PS2_LIFEBOOK | |
dbf4ccd6 DT |
748 | { |
749 | .type = PSMOUSE_LIFEBOOK, | |
750 | .name = "LBPS/2", | |
751 | .alias = "lifebook", | |
752 | .init = lifebook_init, | |
753 | }, | |
55e3d922 AS |
754 | #endif |
755 | #ifdef CONFIG_MOUSE_PS2_TRACKPOINT | |
541e316a SE |
756 | { |
757 | .type = PSMOUSE_TRACKPOINT, | |
758 | .name = "TPPS/2", | |
759 | .alias = "trackpoint", | |
760 | .detect = trackpoint_detect, | |
761 | }, | |
55e3d922 AS |
762 | #endif |
763 | #ifdef CONFIG_MOUSE_PS2_TOUCHKIT | |
24bf10ab SL |
764 | { |
765 | .type = PSMOUSE_TOUCHKIT_PS2, | |
766 | .name = "touchkitPS/2", | |
767 | .alias = "touchkit", | |
768 | .detect = touchkit_ps2_detect, | |
769 | }, | |
55e3d922 | 770 | #endif |
aea6a461 AR |
771 | { |
772 | .type = PSMOUSE_CORTRON, | |
773 | .name = "CortronPS/2", | |
774 | .alias = "cortps", | |
775 | .detect = cortron_detect, | |
776 | }, | |
dbf4ccd6 DT |
777 | { |
778 | .type = PSMOUSE_AUTO, | |
779 | .name = "auto", | |
780 | .alias = "any", | |
781 | .maxproto = 1, | |
782 | }, | |
783 | }; | |
784 | ||
e38de678 | 785 | static const struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type) |
dbf4ccd6 DT |
786 | { |
787 | int i; | |
788 | ||
789 | for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++) | |
790 | if (psmouse_protocols[i].type == type) | |
791 | return &psmouse_protocols[i]; | |
792 | ||
793 | WARN_ON(1); | |
794 | return &psmouse_protocols[0]; | |
795 | } | |
796 | ||
e38de678 | 797 | static const struct psmouse_protocol *psmouse_protocol_by_name(const char *name, size_t len) |
dbf4ccd6 | 798 | { |
e38de678 | 799 | const struct psmouse_protocol *p; |
dbf4ccd6 DT |
800 | int i; |
801 | ||
802 | for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++) { | |
803 | p = &psmouse_protocols[i]; | |
804 | ||
805 | if ((strlen(p->name) == len && !strncmp(p->name, name, len)) || | |
806 | (strlen(p->alias) == len && !strncmp(p->alias, name, len))) | |
807 | return &psmouse_protocols[i]; | |
808 | } | |
809 | ||
810 | return NULL; | |
811 | } | |
812 | ||
813 | ||
1da177e4 LT |
814 | /* |
815 | * psmouse_probe() probes for a PS/2 mouse. | |
816 | */ | |
817 | ||
818 | static int psmouse_probe(struct psmouse *psmouse) | |
819 | { | |
820 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
821 | unsigned char param[2]; | |
822 | ||
823 | /* | |
824 | * First, we check if it's a mouse. It should send 0x00 or 0x03 | |
825 | * in case of an IntelliMouse in 4-byte mode or 0x04 for IM Explorer. | |
7741e931 VP |
826 | * Sunrex K8561 IR Keyboard/Mouse reports 0xff on second and subsequent |
827 | * ID queries, probably due to a firmware bug. | |
1da177e4 LT |
828 | */ |
829 | ||
830 | param[0] = 0xa5; | |
831 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETID)) | |
832 | return -1; | |
833 | ||
7741e931 VP |
834 | if (param[0] != 0x00 && param[0] != 0x03 && |
835 | param[0] != 0x04 && param[0] != 0xff) | |
1da177e4 LT |
836 | return -1; |
837 | ||
838 | /* | |
839 | * Then we reset and disable the mouse so that it doesn't generate events. | |
840 | */ | |
841 | ||
842 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_DIS)) | |
843 | printk(KERN_WARNING "psmouse.c: Failed to reset mouse on %s\n", ps2dev->serio->phys); | |
844 | ||
845 | return 0; | |
846 | } | |
847 | ||
848 | /* | |
849 | * Here we set the mouse resolution. | |
850 | */ | |
851 | ||
852 | void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution) | |
853 | { | |
e38de678 HD |
854 | static const unsigned char params[] = { 0, 1, 2, 2, 3 }; |
855 | unsigned char p; | |
1da177e4 LT |
856 | |
857 | if (resolution == 0 || resolution > 200) | |
858 | resolution = 200; | |
859 | ||
e38de678 HD |
860 | p = params[resolution / 50]; |
861 | ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES); | |
862 | psmouse->resolution = 25 << p; | |
1da177e4 LT |
863 | } |
864 | ||
865 | /* | |
866 | * Here we set the mouse report rate. | |
867 | */ | |
868 | ||
869 | static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate) | |
870 | { | |
e38de678 HD |
871 | static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 }; |
872 | unsigned char r; | |
1da177e4 LT |
873 | int i = 0; |
874 | ||
875 | while (rates[i] > rate) i++; | |
e38de678 HD |
876 | r = rates[i]; |
877 | ps2_command(&psmouse->ps2dev, &r, PSMOUSE_CMD_SETRATE); | |
878 | psmouse->rate = r; | |
1da177e4 LT |
879 | } |
880 | ||
881 | /* | |
882 | * psmouse_initialize() initializes the mouse to a sane state. | |
883 | */ | |
884 | ||
885 | static void psmouse_initialize(struct psmouse *psmouse) | |
886 | { | |
1da177e4 LT |
887 | /* |
888 | * We set the mouse report rate, resolution and scaling. | |
889 | */ | |
890 | ||
891 | if (psmouse_max_proto != PSMOUSE_PS2) { | |
892 | psmouse->set_rate(psmouse, psmouse->rate); | |
893 | psmouse->set_resolution(psmouse, psmouse->resolution); | |
894 | ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
895 | } | |
896 | } | |
897 | ||
1da177e4 LT |
898 | /* |
899 | * psmouse_activate() enables the mouse so that we get motion reports from it. | |
900 | */ | |
901 | ||
902 | static void psmouse_activate(struct psmouse *psmouse) | |
903 | { | |
904 | if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE)) | |
905 | printk(KERN_WARNING "psmouse.c: Failed to enable mouse on %s\n", | |
906 | psmouse->ps2dev.serio->phys); | |
907 | ||
908 | psmouse_set_state(psmouse, PSMOUSE_ACTIVATED); | |
909 | } | |
910 | ||
911 | ||
912 | /* | |
913 | * psmouse_deactivate() puts the mouse into poll mode so that we don't get motion | |
c03983ac | 914 | * reports from it unless we explicitly request it. |
1da177e4 LT |
915 | */ |
916 | ||
917 | static void psmouse_deactivate(struct psmouse *psmouse) | |
918 | { | |
919 | if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE)) | |
920 | printk(KERN_WARNING "psmouse.c: Failed to deactivate mouse on %s\n", | |
921 | psmouse->ps2dev.serio->phys); | |
922 | ||
923 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); | |
924 | } | |
925 | ||
f0d5c6f4 DT |
926 | /* |
927 | * psmouse_poll() - default poll hanlder. Everyone except for ALPS uses it. | |
928 | */ | |
929 | ||
930 | static int psmouse_poll(struct psmouse *psmouse) | |
931 | { | |
932 | return ps2_command(&psmouse->ps2dev, psmouse->packet, | |
933 | PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)); | |
934 | } | |
935 | ||
936 | ||
937 | /* | |
938 | * psmouse_resync() attempts to re-validate current protocol. | |
939 | */ | |
940 | ||
c4028958 | 941 | static void psmouse_resync(struct work_struct *work) |
f0d5c6f4 | 942 | { |
c4028958 | 943 | struct psmouse *parent = NULL, *psmouse = |
8bf020ee | 944 | container_of(work, struct psmouse, resync_work.work); |
f0d5c6f4 DT |
945 | struct serio *serio = psmouse->ps2dev.serio; |
946 | psmouse_ret_t rc = PSMOUSE_GOOD_DATA; | |
947 | int failed = 0, enabled = 0; | |
948 | int i; | |
949 | ||
c14471dc | 950 | mutex_lock(&psmouse_mutex); |
f0d5c6f4 DT |
951 | |
952 | if (psmouse->state != PSMOUSE_RESYNCING) | |
953 | goto out; | |
954 | ||
955 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { | |
956 | parent = serio_get_drvdata(serio->parent); | |
957 | psmouse_deactivate(parent); | |
958 | } | |
959 | ||
960 | /* | |
961 | * Some mice don't ACK commands sent while they are in the middle of | |
962 | * transmitting motion packet. To avoid delay we use ps2_sendbyte() | |
963 | * instead of ps2_command() which would wait for 200ms for an ACK | |
964 | * that may never come. | |
965 | * As an additional quirk ALPS touchpads may not only forget to ACK | |
966 | * disable command but will stop reporting taps, so if we see that | |
967 | * mouse at least once ACKs disable we will do full reconnect if ACK | |
968 | * is missing. | |
969 | */ | |
970 | psmouse->num_resyncs++; | |
971 | ||
972 | if (ps2_sendbyte(&psmouse->ps2dev, PSMOUSE_CMD_DISABLE, 20)) { | |
973 | if (psmouse->num_resyncs < 3 || psmouse->acks_disable_command) | |
974 | failed = 1; | |
975 | } else | |
976 | psmouse->acks_disable_command = 1; | |
977 | ||
978 | /* | |
979 | * Poll the mouse. If it was reset the packet will be shorter than | |
980 | * psmouse->pktsize and ps2_command will fail. We do not expect and | |
981 | * do not handle scenario when mouse "upgrades" its protocol while | |
982 | * disconnected since it would require additional delay. If we ever | |
983 | * see a mouse that does it we'll adjust the code. | |
984 | */ | |
985 | if (!failed) { | |
986 | if (psmouse->poll(psmouse)) | |
987 | failed = 1; | |
988 | else { | |
989 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); | |
990 | for (i = 0; i < psmouse->pktsize; i++) { | |
991 | psmouse->pktcnt++; | |
7d12e780 | 992 | rc = psmouse->protocol_handler(psmouse); |
f0d5c6f4 DT |
993 | if (rc != PSMOUSE_GOOD_DATA) |
994 | break; | |
995 | } | |
996 | if (rc != PSMOUSE_FULL_PACKET) | |
997 | failed = 1; | |
998 | psmouse_set_state(psmouse, PSMOUSE_RESYNCING); | |
999 | } | |
1000 | } | |
1001 | /* | |
1002 | * Now try to enable mouse. We try to do that even if poll failed and also | |
1003 | * repeat our attempts 5 times, otherwise we may be left out with disabled | |
1004 | * mouse. | |
1005 | */ | |
1006 | for (i = 0; i < 5; i++) { | |
1007 | if (!ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE)) { | |
1008 | enabled = 1; | |
1009 | break; | |
1010 | } | |
1011 | msleep(200); | |
1012 | } | |
1013 | ||
1014 | if (!enabled) { | |
1015 | printk(KERN_WARNING "psmouse.c: failed to re-enable mouse on %s\n", | |
1016 | psmouse->ps2dev.serio->phys); | |
1017 | failed = 1; | |
1018 | } | |
1019 | ||
1020 | if (failed) { | |
1021 | psmouse_set_state(psmouse, PSMOUSE_IGNORE); | |
1022 | printk(KERN_INFO "psmouse.c: resync failed, issuing reconnect request\n"); | |
1023 | serio_reconnect(serio); | |
1024 | } else | |
1025 | psmouse_set_state(psmouse, PSMOUSE_ACTIVATED); | |
1026 | ||
1027 | if (parent) | |
1028 | psmouse_activate(parent); | |
1029 | out: | |
c14471dc | 1030 | mutex_unlock(&psmouse_mutex); |
f0d5c6f4 | 1031 | } |
1da177e4 LT |
1032 | |
1033 | /* | |
1034 | * psmouse_cleanup() resets the mouse into power-on state. | |
1035 | */ | |
1036 | ||
1037 | static void psmouse_cleanup(struct serio *serio) | |
1038 | { | |
1039 | struct psmouse *psmouse = serio_get_drvdata(serio); | |
a1cec061 DT |
1040 | struct psmouse *parent = NULL; |
1041 | ||
1042 | mutex_lock(&psmouse_mutex); | |
1043 | ||
1044 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { | |
1045 | parent = serio_get_drvdata(serio->parent); | |
1046 | psmouse_deactivate(parent); | |
1047 | } | |
1048 | ||
1049 | psmouse_deactivate(psmouse); | |
1050 | ||
1051 | if (psmouse->cleanup) | |
1052 | psmouse->cleanup(psmouse); | |
1da177e4 LT |
1053 | |
1054 | psmouse_reset(psmouse); | |
a1cec061 DT |
1055 | |
1056 | /* | |
1057 | * Some boxes, such as HP nx7400, get terribly confused if mouse | |
1058 | * is not fully enabled before suspending/shutting down. | |
1059 | */ | |
1060 | ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE); | |
1061 | ||
1062 | if (parent) { | |
1063 | if (parent->pt_deactivate) | |
1064 | parent->pt_deactivate(parent); | |
1065 | ||
1066 | psmouse_activate(parent); | |
1067 | } | |
1068 | ||
1069 | mutex_unlock(&psmouse_mutex); | |
1da177e4 LT |
1070 | } |
1071 | ||
1072 | /* | |
1073 | * psmouse_disconnect() closes and frees. | |
1074 | */ | |
1075 | ||
1076 | static void psmouse_disconnect(struct serio *serio) | |
1077 | { | |
04df1925 DT |
1078 | struct psmouse *psmouse, *parent = NULL; |
1079 | ||
1080 | psmouse = serio_get_drvdata(serio); | |
1da177e4 | 1081 | |
cfe9e888 | 1082 | sysfs_remove_group(&serio->dev.kobj, &psmouse_attribute_group); |
1da177e4 | 1083 | |
c14471dc | 1084 | mutex_lock(&psmouse_mutex); |
04df1925 | 1085 | |
1da177e4 LT |
1086 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); |
1087 | ||
f0d5c6f4 | 1088 | /* make sure we don't have a resync in progress */ |
c14471dc | 1089 | mutex_unlock(&psmouse_mutex); |
f0d5c6f4 | 1090 | flush_workqueue(kpsmoused_wq); |
c14471dc | 1091 | mutex_lock(&psmouse_mutex); |
f0d5c6f4 | 1092 | |
1da177e4 LT |
1093 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { |
1094 | parent = serio_get_drvdata(serio->parent); | |
04df1925 | 1095 | psmouse_deactivate(parent); |
1da177e4 LT |
1096 | } |
1097 | ||
1098 | if (psmouse->disconnect) | |
1099 | psmouse->disconnect(psmouse); | |
1100 | ||
04df1925 DT |
1101 | if (parent && parent->pt_deactivate) |
1102 | parent->pt_deactivate(parent); | |
1103 | ||
1da177e4 LT |
1104 | psmouse_set_state(psmouse, PSMOUSE_IGNORE); |
1105 | ||
1da177e4 LT |
1106 | serio_close(serio); |
1107 | serio_set_drvdata(serio, NULL); | |
2e5b636b | 1108 | input_unregister_device(psmouse->dev); |
1da177e4 | 1109 | kfree(psmouse); |
04df1925 DT |
1110 | |
1111 | if (parent) | |
1112 | psmouse_activate(parent); | |
1113 | ||
c14471dc | 1114 | mutex_unlock(&psmouse_mutex); |
1da177e4 LT |
1115 | } |
1116 | ||
e38de678 | 1117 | static int psmouse_switch_protocol(struct psmouse *psmouse, const struct psmouse_protocol *proto) |
dbf4ccd6 | 1118 | { |
2e5b636b | 1119 | struct input_dev *input_dev = psmouse->dev; |
dbf4ccd6 | 1120 | |
28aa7f1c | 1121 | input_dev->dev.parent = &psmouse->ps2dev.serio->dev; |
dbf4ccd6 | 1122 | |
7b19ada2 JS |
1123 | input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); |
1124 | input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) | | |
1125 | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT); | |
1126 | input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); | |
dbf4ccd6 DT |
1127 | |
1128 | psmouse->set_rate = psmouse_set_rate; | |
1129 | psmouse->set_resolution = psmouse_set_resolution; | |
f0d5c6f4 | 1130 | psmouse->poll = psmouse_poll; |
dbf4ccd6 DT |
1131 | psmouse->protocol_handler = psmouse_process_byte; |
1132 | psmouse->pktsize = 3; | |
1133 | ||
1134 | if (proto && (proto->detect || proto->init)) { | |
1135 | if (proto->detect && proto->detect(psmouse, 1) < 0) | |
1136 | return -1; | |
1137 | ||
1138 | if (proto->init && proto->init(psmouse) < 0) | |
1139 | return -1; | |
1140 | ||
1141 | psmouse->type = proto->type; | |
1142 | } | |
1143 | else | |
1144 | psmouse->type = psmouse_extensions(psmouse, psmouse_max_proto, 1); | |
1145 | ||
f0d5c6f4 DT |
1146 | /* |
1147 | * If mouse's packet size is 3 there is no point in polling the | |
1148 | * device in hopes to detect protocol reset - we won't get less | |
1149 | * than 3 bytes response anyhow. | |
1150 | */ | |
1151 | if (psmouse->pktsize == 3) | |
1152 | psmouse->resync_time = 0; | |
1153 | ||
1154 | /* | |
1155 | * Some smart KVMs fake response to POLL command returning just | |
1156 | * 3 bytes and messing up our resync logic, so if initial poll | |
1157 | * fails we won't try polling the device anymore. Hopefully | |
1158 | * such KVM will maintain initially selected protocol. | |
1159 | */ | |
1160 | if (psmouse->resync_time && psmouse->poll(psmouse)) | |
1161 | psmouse->resync_time = 0; | |
1162 | ||
08ffce45 DT |
1163 | snprintf(psmouse->devname, sizeof(psmouse->devname), "%s %s %s", |
1164 | psmouse_protocol_by_type(psmouse->type)->name, psmouse->vendor, psmouse->name); | |
dbf4ccd6 | 1165 | |
2e5b636b DT |
1166 | input_dev->name = psmouse->devname; |
1167 | input_dev->phys = psmouse->phys; | |
1168 | input_dev->id.bustype = BUS_I8042; | |
1169 | input_dev->id.vendor = 0x0002; | |
1170 | input_dev->id.product = psmouse->type; | |
1171 | input_dev->id.version = psmouse->model; | |
dbf4ccd6 DT |
1172 | |
1173 | return 0; | |
1174 | } | |
1175 | ||
1da177e4 LT |
1176 | /* |
1177 | * psmouse_connect() is a callback from the serio module when | |
1178 | * an unhandled serio port is found. | |
1179 | */ | |
1180 | static int psmouse_connect(struct serio *serio, struct serio_driver *drv) | |
1181 | { | |
1182 | struct psmouse *psmouse, *parent = NULL; | |
2e5b636b | 1183 | struct input_dev *input_dev; |
72155615 | 1184 | int retval = 0, error = -ENOMEM; |
1da177e4 | 1185 | |
c14471dc | 1186 | mutex_lock(&psmouse_mutex); |
04df1925 | 1187 | |
1da177e4 LT |
1188 | /* |
1189 | * If this is a pass-through port deactivate parent so the device | |
1190 | * connected to this port can be successfully identified | |
1191 | */ | |
1192 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { | |
1193 | parent = serio_get_drvdata(serio->parent); | |
1194 | psmouse_deactivate(parent); | |
1195 | } | |
1196 | ||
2e5b636b DT |
1197 | psmouse = kzalloc(sizeof(struct psmouse), GFP_KERNEL); |
1198 | input_dev = input_allocate_device(); | |
1199 | if (!psmouse || !input_dev) | |
72155615 | 1200 | goto err_free; |
1da177e4 | 1201 | |
1da177e4 | 1202 | ps2_init(&psmouse->ps2dev, serio); |
8bf020ee | 1203 | INIT_DELAYED_WORK(&psmouse->resync_work, psmouse_resync); |
2e5b636b | 1204 | psmouse->dev = input_dev; |
08ffce45 | 1205 | snprintf(psmouse->phys, sizeof(psmouse->phys), "%s/input0", serio->phys); |
dbf4ccd6 | 1206 | |
1da177e4 LT |
1207 | psmouse_set_state(psmouse, PSMOUSE_INITIALIZING); |
1208 | ||
1209 | serio_set_drvdata(serio, psmouse); | |
1210 | ||
72155615 DT |
1211 | error = serio_open(serio, drv); |
1212 | if (error) | |
1213 | goto err_clear_drvdata; | |
1da177e4 LT |
1214 | |
1215 | if (psmouse_probe(psmouse) < 0) { | |
72155615 DT |
1216 | error = -ENODEV; |
1217 | goto err_close_serio; | |
1da177e4 LT |
1218 | } |
1219 | ||
1220 | psmouse->rate = psmouse_rate; | |
1221 | psmouse->resolution = psmouse_resolution; | |
1222 | psmouse->resetafter = psmouse_resetafter; | |
f0d5c6f4 | 1223 | psmouse->resync_time = parent ? 0 : psmouse_resync_time; |
1da177e4 | 1224 | psmouse->smartscroll = psmouse_smartscroll; |
1da177e4 | 1225 | |
dbf4ccd6 | 1226 | psmouse_switch_protocol(psmouse, NULL); |
1da177e4 | 1227 | |
1da177e4 | 1228 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); |
1da177e4 LT |
1229 | psmouse_initialize(psmouse); |
1230 | ||
72155615 DT |
1231 | error = input_register_device(psmouse->dev); |
1232 | if (error) | |
1233 | goto err_protocol_disconnect; | |
2e5b636b | 1234 | |
1da177e4 LT |
1235 | if (parent && parent->pt_activate) |
1236 | parent->pt_activate(parent); | |
1237 | ||
72155615 DT |
1238 | error = sysfs_create_group(&serio->dev.kobj, &psmouse_attribute_group); |
1239 | if (error) | |
1240 | goto err_pt_deactivate; | |
1da177e4 LT |
1241 | |
1242 | psmouse_activate(psmouse); | |
1243 | ||
72155615 | 1244 | out: |
04df1925 | 1245 | /* If this is a pass-through port the parent needs to be re-activated */ |
1da177e4 LT |
1246 | if (parent) |
1247 | psmouse_activate(parent); | |
1248 | ||
c14471dc | 1249 | mutex_unlock(&psmouse_mutex); |
1da177e4 | 1250 | return retval; |
72155615 DT |
1251 | |
1252 | err_pt_deactivate: | |
1253 | if (parent && parent->pt_deactivate) | |
1254 | parent->pt_deactivate(parent); | |
746b31a9 AS |
1255 | input_unregister_device(psmouse->dev); |
1256 | input_dev = NULL; /* so we don't try to free it below */ | |
72155615 DT |
1257 | err_protocol_disconnect: |
1258 | if (psmouse->disconnect) | |
1259 | psmouse->disconnect(psmouse); | |
1260 | psmouse_set_state(psmouse, PSMOUSE_IGNORE); | |
1261 | err_close_serio: | |
1262 | serio_close(serio); | |
1263 | err_clear_drvdata: | |
1264 | serio_set_drvdata(serio, NULL); | |
1265 | err_free: | |
1266 | input_free_device(input_dev); | |
1267 | kfree(psmouse); | |
1268 | ||
1269 | retval = error; | |
1270 | goto out; | |
1da177e4 LT |
1271 | } |
1272 | ||
1273 | ||
1274 | static int psmouse_reconnect(struct serio *serio) | |
1275 | { | |
1276 | struct psmouse *psmouse = serio_get_drvdata(serio); | |
1277 | struct psmouse *parent = NULL; | |
1278 | struct serio_driver *drv = serio->drv; | |
1279 | int rc = -1; | |
1280 | ||
1281 | if (!drv || !psmouse) { | |
1282 | printk(KERN_DEBUG "psmouse: reconnect request, but serio is disconnected, ignoring...\n"); | |
1283 | return -1; | |
1284 | } | |
1285 | ||
c14471dc | 1286 | mutex_lock(&psmouse_mutex); |
04df1925 | 1287 | |
1da177e4 LT |
1288 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { |
1289 | parent = serio_get_drvdata(serio->parent); | |
1290 | psmouse_deactivate(parent); | |
1291 | } | |
1292 | ||
1293 | psmouse_set_state(psmouse, PSMOUSE_INITIALIZING); | |
1294 | ||
1295 | if (psmouse->reconnect) { | |
1296 | if (psmouse->reconnect(psmouse)) | |
1297 | goto out; | |
1298 | } else if (psmouse_probe(psmouse) < 0 || | |
1299 | psmouse->type != psmouse_extensions(psmouse, psmouse_max_proto, 0)) | |
1300 | goto out; | |
1301 | ||
1302 | /* ok, the device type (and capabilities) match the old one, | |
1303 | * we can continue using it, complete intialization | |
1304 | */ | |
1305 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); | |
1306 | ||
1307 | psmouse_initialize(psmouse); | |
1308 | ||
1309 | if (parent && parent->pt_activate) | |
1310 | parent->pt_activate(parent); | |
1311 | ||
1312 | psmouse_activate(psmouse); | |
1313 | rc = 0; | |
1314 | ||
1315 | out: | |
1316 | /* If this is a pass-through port the parent waits to be activated */ | |
1317 | if (parent) | |
1318 | psmouse_activate(parent); | |
1319 | ||
c14471dc | 1320 | mutex_unlock(&psmouse_mutex); |
1da177e4 LT |
1321 | return rc; |
1322 | } | |
1323 | ||
1324 | static struct serio_device_id psmouse_serio_ids[] = { | |
1325 | { | |
1326 | .type = SERIO_8042, | |
1327 | .proto = SERIO_ANY, | |
1328 | .id = SERIO_ANY, | |
1329 | .extra = SERIO_ANY, | |
1330 | }, | |
1331 | { | |
1332 | .type = SERIO_PS_PSTHRU, | |
1333 | .proto = SERIO_ANY, | |
1334 | .id = SERIO_ANY, | |
1335 | .extra = SERIO_ANY, | |
1336 | }, | |
1337 | { 0 } | |
1338 | }; | |
1339 | ||
1340 | MODULE_DEVICE_TABLE(serio, psmouse_serio_ids); | |
1341 | ||
1342 | static struct serio_driver psmouse_drv = { | |
1343 | .driver = { | |
1344 | .name = "psmouse", | |
1345 | }, | |
1346 | .description = DRIVER_DESC, | |
1347 | .id_table = psmouse_serio_ids, | |
1348 | .interrupt = psmouse_interrupt, | |
1349 | .connect = psmouse_connect, | |
1350 | .reconnect = psmouse_reconnect, | |
1351 | .disconnect = psmouse_disconnect, | |
1352 | .cleanup = psmouse_cleanup, | |
1353 | }; | |
1354 | ||
cfe9e888 DT |
1355 | ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *devattr, |
1356 | char *buf) | |
1da177e4 LT |
1357 | { |
1358 | struct serio *serio = to_serio_port(dev); | |
cfe9e888 DT |
1359 | struct psmouse_attribute *attr = to_psmouse_attr(devattr); |
1360 | struct psmouse *psmouse; | |
1da177e4 LT |
1361 | int retval; |
1362 | ||
1363 | retval = serio_pin_driver(serio); | |
1364 | if (retval) | |
1365 | return retval; | |
1366 | ||
1367 | if (serio->drv != &psmouse_drv) { | |
1368 | retval = -ENODEV; | |
1369 | goto out; | |
1370 | } | |
1371 | ||
cfe9e888 DT |
1372 | psmouse = serio_get_drvdata(serio); |
1373 | ||
1374 | retval = attr->show(psmouse, attr->data, buf); | |
1da177e4 LT |
1375 | |
1376 | out: | |
1377 | serio_unpin_driver(serio); | |
1378 | return retval; | |
1379 | } | |
1380 | ||
cfe9e888 DT |
1381 | ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *devattr, |
1382 | const char *buf, size_t count) | |
1da177e4 LT |
1383 | { |
1384 | struct serio *serio = to_serio_port(dev); | |
cfe9e888 DT |
1385 | struct psmouse_attribute *attr = to_psmouse_attr(devattr); |
1386 | struct psmouse *psmouse, *parent = NULL; | |
1da177e4 LT |
1387 | int retval; |
1388 | ||
1389 | retval = serio_pin_driver(serio); | |
1390 | if (retval) | |
1391 | return retval; | |
1392 | ||
1393 | if (serio->drv != &psmouse_drv) { | |
1394 | retval = -ENODEV; | |
04df1925 DT |
1395 | goto out_unpin; |
1396 | } | |
1397 | ||
c14471dc | 1398 | retval = mutex_lock_interruptible(&psmouse_mutex); |
04df1925 DT |
1399 | if (retval) |
1400 | goto out_unpin; | |
1401 | ||
cfe9e888 DT |
1402 | psmouse = serio_get_drvdata(serio); |
1403 | ||
68d48221 AS |
1404 | if (attr->protect) { |
1405 | if (psmouse->state == PSMOUSE_IGNORE) { | |
1406 | retval = -ENODEV; | |
1407 | goto out_unlock; | |
1408 | } | |
1da177e4 | 1409 | |
68d48221 AS |
1410 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { |
1411 | parent = serio_get_drvdata(serio->parent); | |
1412 | psmouse_deactivate(parent); | |
1413 | } | |
dbf4ccd6 | 1414 | |
68d48221 AS |
1415 | psmouse_deactivate(psmouse); |
1416 | } | |
1da177e4 | 1417 | |
cfe9e888 | 1418 | retval = attr->set(psmouse, attr->data, buf, count); |
1da177e4 | 1419 | |
68d48221 AS |
1420 | if (attr->protect) { |
1421 | if (retval != -ENODEV) | |
1422 | psmouse_activate(psmouse); | |
dbf4ccd6 | 1423 | |
68d48221 AS |
1424 | if (parent) |
1425 | psmouse_activate(parent); | |
1426 | } | |
1da177e4 | 1427 | |
c14471dc IM |
1428 | out_unlock: |
1429 | mutex_unlock(&psmouse_mutex); | |
04df1925 | 1430 | out_unpin: |
1da177e4 LT |
1431 | serio_unpin_driver(serio); |
1432 | return retval; | |
1433 | } | |
1434 | ||
cfe9e888 DT |
1435 | static ssize_t psmouse_show_int_attr(struct psmouse *psmouse, void *offset, char *buf) |
1436 | { | |
eb5d5829 | 1437 | unsigned int *field = (unsigned int *)((char *)psmouse + (size_t)offset); |
cfe9e888 | 1438 | |
eb5d5829 | 1439 | return sprintf(buf, "%u\n", *field); |
cfe9e888 DT |
1440 | } |
1441 | ||
1442 | static ssize_t psmouse_set_int_attr(struct psmouse *psmouse, void *offset, const char *buf, size_t count) | |
1443 | { | |
eb5d5829 | 1444 | unsigned int *field = (unsigned int *)((char *)psmouse + (size_t)offset); |
cfe9e888 | 1445 | unsigned long value; |
cfe9e888 | 1446 | |
160f1fef | 1447 | if (strict_strtoul(buf, 10, &value)) |
cfe9e888 DT |
1448 | return -EINVAL; |
1449 | ||
eb5d5829 SV |
1450 | if ((unsigned int)value != value) |
1451 | return -EINVAL; | |
1452 | ||
cfe9e888 DT |
1453 | *field = value; |
1454 | ||
1455 | return count; | |
1456 | } | |
1457 | ||
1458 | static ssize_t psmouse_attr_show_protocol(struct psmouse *psmouse, void *data, char *buf) | |
dbf4ccd6 DT |
1459 | { |
1460 | return sprintf(buf, "%s\n", psmouse_protocol_by_type(psmouse->type)->name); | |
1461 | } | |
1462 | ||
cfe9e888 | 1463 | static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, const char *buf, size_t count) |
dbf4ccd6 DT |
1464 | { |
1465 | struct serio *serio = psmouse->ps2dev.serio; | |
1466 | struct psmouse *parent = NULL; | |
72155615 DT |
1467 | struct input_dev *old_dev, *new_dev; |
1468 | const struct psmouse_protocol *proto, *old_proto; | |
1469 | int error; | |
dbf4ccd6 DT |
1470 | int retry = 0; |
1471 | ||
72155615 DT |
1472 | proto = psmouse_protocol_by_name(buf, count); |
1473 | if (!proto) | |
dbf4ccd6 DT |
1474 | return -EINVAL; |
1475 | ||
1476 | if (psmouse->type == proto->type) | |
1477 | return count; | |
1478 | ||
72155615 DT |
1479 | new_dev = input_allocate_device(); |
1480 | if (!new_dev) | |
2e5b636b DT |
1481 | return -ENOMEM; |
1482 | ||
dbf4ccd6 DT |
1483 | while (serio->child) { |
1484 | if (++retry > 3) { | |
1485 | printk(KERN_WARNING "psmouse: failed to destroy child port, protocol change aborted.\n"); | |
2e5b636b | 1486 | input_free_device(new_dev); |
dbf4ccd6 DT |
1487 | return -EIO; |
1488 | } | |
1489 | ||
c14471dc | 1490 | mutex_unlock(&psmouse_mutex); |
dbf4ccd6 DT |
1491 | serio_unpin_driver(serio); |
1492 | serio_unregister_child_port(serio); | |
1493 | serio_pin_driver_uninterruptible(serio); | |
c14471dc | 1494 | mutex_lock(&psmouse_mutex); |
dbf4ccd6 | 1495 | |
2e5b636b DT |
1496 | if (serio->drv != &psmouse_drv) { |
1497 | input_free_device(new_dev); | |
dbf4ccd6 | 1498 | return -ENODEV; |
2e5b636b | 1499 | } |
dbf4ccd6 | 1500 | |
2e5b636b DT |
1501 | if (psmouse->type == proto->type) { |
1502 | input_free_device(new_dev); | |
dbf4ccd6 | 1503 | return count; /* switched by other thread */ |
2e5b636b | 1504 | } |
dbf4ccd6 DT |
1505 | } |
1506 | ||
1507 | if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) { | |
1508 | parent = serio_get_drvdata(serio->parent); | |
1509 | if (parent->pt_deactivate) | |
1510 | parent->pt_deactivate(parent); | |
1511 | } | |
1512 | ||
72155615 DT |
1513 | old_dev = psmouse->dev; |
1514 | old_proto = psmouse_protocol_by_type(psmouse->type); | |
1515 | ||
dbf4ccd6 DT |
1516 | if (psmouse->disconnect) |
1517 | psmouse->disconnect(psmouse); | |
1518 | ||
1519 | psmouse_set_state(psmouse, PSMOUSE_IGNORE); | |
dbf4ccd6 | 1520 | |
2e5b636b | 1521 | psmouse->dev = new_dev; |
dbf4ccd6 DT |
1522 | psmouse_set_state(psmouse, PSMOUSE_INITIALIZING); |
1523 | ||
1524 | if (psmouse_switch_protocol(psmouse, proto) < 0) { | |
1525 | psmouse_reset(psmouse); | |
1526 | /* default to PSMOUSE_PS2 */ | |
1527 | psmouse_switch_protocol(psmouse, &psmouse_protocols[0]); | |
1528 | } | |
1529 | ||
1530 | psmouse_initialize(psmouse); | |
1531 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); | |
1532 | ||
72155615 DT |
1533 | error = input_register_device(psmouse->dev); |
1534 | if (error) { | |
1535 | if (psmouse->disconnect) | |
1536 | psmouse->disconnect(psmouse); | |
1537 | ||
1538 | psmouse_set_state(psmouse, PSMOUSE_IGNORE); | |
1539 | input_free_device(new_dev); | |
1540 | psmouse->dev = old_dev; | |
1541 | psmouse_set_state(psmouse, PSMOUSE_INITIALIZING); | |
1542 | psmouse_switch_protocol(psmouse, old_proto); | |
1543 | psmouse_initialize(psmouse); | |
1544 | psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); | |
1545 | ||
1546 | return error; | |
1547 | } | |
1548 | ||
1549 | input_unregister_device(old_dev); | |
dbf4ccd6 DT |
1550 | |
1551 | if (parent && parent->pt_activate) | |
1552 | parent->pt_activate(parent); | |
1553 | ||
1554 | return count; | |
1555 | } | |
1556 | ||
cfe9e888 | 1557 | static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, void *data, const char *buf, size_t count) |
1da177e4 LT |
1558 | { |
1559 | unsigned long value; | |
1da177e4 | 1560 | |
160f1fef | 1561 | if (strict_strtoul(buf, 10, &value)) |
1da177e4 LT |
1562 | return -EINVAL; |
1563 | ||
1564 | psmouse->set_rate(psmouse, value); | |
1565 | return count; | |
1566 | } | |
1567 | ||
cfe9e888 | 1568 | static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, void *data, const char *buf, size_t count) |
1da177e4 LT |
1569 | { |
1570 | unsigned long value; | |
1da177e4 | 1571 | |
160f1fef | 1572 | if (strict_strtoul(buf, 10, &value)) |
1da177e4 LT |
1573 | return -EINVAL; |
1574 | ||
1575 | psmouse->set_resolution(psmouse, value); | |
1576 | return count; | |
1577 | } | |
1578 | ||
1da177e4 LT |
1579 | |
1580 | static int psmouse_set_maxproto(const char *val, struct kernel_param *kp) | |
1581 | { | |
e38de678 | 1582 | const struct psmouse_protocol *proto; |
1da177e4 LT |
1583 | |
1584 | if (!val) | |
1585 | return -EINVAL; | |
1586 | ||
dbf4ccd6 | 1587 | proto = psmouse_protocol_by_name(val, strlen(val)); |
1da177e4 | 1588 | |
dbf4ccd6 DT |
1589 | if (!proto || !proto->maxproto) |
1590 | return -EINVAL; | |
1da177e4 | 1591 | |
dbf4ccd6 | 1592 | *((unsigned int *)kp->arg) = proto->type; |
1da177e4 | 1593 | |
541e316a | 1594 | return 0; |
1da177e4 LT |
1595 | } |
1596 | ||
1597 | static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp) | |
1598 | { | |
dbf4ccd6 DT |
1599 | int type = *((unsigned int *)kp->arg); |
1600 | ||
1601 | return sprintf(buffer, "%s\n", psmouse_protocol_by_type(type)->name); | |
1da177e4 LT |
1602 | } |
1603 | ||
1604 | static int __init psmouse_init(void) | |
1605 | { | |
153a9df0 AM |
1606 | int err; |
1607 | ||
f0d5c6f4 DT |
1608 | kpsmoused_wq = create_singlethread_workqueue("kpsmoused"); |
1609 | if (!kpsmoused_wq) { | |
1610 | printk(KERN_ERR "psmouse: failed to create kpsmoused workqueue\n"); | |
1611 | return -ENOMEM; | |
1612 | } | |
1613 | ||
153a9df0 AM |
1614 | err = serio_register_driver(&psmouse_drv); |
1615 | if (err) | |
1616 | destroy_workqueue(kpsmoused_wq); | |
f0d5c6f4 | 1617 | |
153a9df0 | 1618 | return err; |
1da177e4 LT |
1619 | } |
1620 | ||
1621 | static void __exit psmouse_exit(void) | |
1622 | { | |
1623 | serio_unregister_driver(&psmouse_drv); | |
f0d5c6f4 | 1624 | destroy_workqueue(kpsmoused_wq); |
1da177e4 LT |
1625 | } |
1626 | ||
1627 | module_init(psmouse_init); | |
1628 | module_exit(psmouse_exit); |