2 * ALPS touchpad PS/2 mouse driver
4 * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au>
5 * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com>
6 * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru>
7 * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
8 * Copyright (c) 2009 Sebastian Kapfer <sebastian_kapfer@gmx.net>
10 * ALPS detection, tap switching and status querying info is taken from
11 * tpconfig utility (by C. Scott Ananian and Bruce Kall).
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License version 2 as published by
15 * the Free Software Foundation.
18 #include <linux/input.h>
19 #include <linux/serio.h>
20 #include <linux/libps2.h>
27 #define dbg(format, arg...) printk(KERN_INFO "alps.c: " format "\n", ## arg)
29 #define dbg(format, arg...) do {} while (0)
32 #define ALPS_OLDPROTO 0x01 /* old style input */
33 #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */
34 #define ALPS_PASS 0x04 /* device has a pass-through port */
36 #define ALPS_WHEEL 0x08 /* hardware wheel present */
37 #define ALPS_FW_BK_1 0x10 /* front & back buttons present */
38 #define ALPS_FW_BK_2 0x20 /* front & back buttons present */
39 #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */
40 #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with
43 static const struct alps_model_info alps_model_data
[] = {
44 { { 0x32, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
}, /* Toshiba Salellite Pro M10 */
45 { { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO
}, /* UMAX-530T */
46 { { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
47 { { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
48 { { 0x60, 0x03, 0xc8 }, 0xf8, 0xf8, 0 }, /* HP ze1115 */
49 { { 0x63, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
50 { { 0x63, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
51 { { 0x63, 0x02, 0x28 }, 0xf8, 0xf8, ALPS_FW_BK_2
}, /* Fujitsu Siemens S6010 */
52 { { 0x63, 0x02, 0x3c }, 0x8f, 0x8f, ALPS_WHEEL
}, /* Toshiba Satellite S2400-103 */
53 { { 0x63, 0x02, 0x50 }, 0xef, 0xef, ALPS_FW_BK_1
}, /* NEC Versa L320 */
54 { { 0x63, 0x02, 0x64 }, 0xf8, 0xf8, 0 },
55 { { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
}, /* Dell Latitude D800 */
56 { { 0x73, 0x00, 0x0a }, 0xf8, 0xf8, ALPS_DUALPOINT
}, /* ThinkPad R61 8918-5QG */
57 { { 0x73, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
58 { { 0x73, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_FW_BK_2
}, /* Ahtec Laptop */
59 { { 0x20, 0x02, 0x0e }, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
}, /* XXX */
60 { { 0x22, 0x02, 0x0a }, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
},
61 { { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS
| ALPS_DUALPOINT
}, /* Dell Latitude D600 */
62 /* Dell Latitude E5500, E6400, E6500, Precision M4400 */
63 { { 0x62, 0x02, 0x14 }, 0xcf, 0xcf,
64 ALPS_PASS
| ALPS_DUALPOINT
| ALPS_PS2_INTERLEAVED
},
65 { { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FOUR_BUTTONS
}, /* Dell Vostro 1400 */
66 { { 0x52, 0x01, 0x14 }, 0xff, 0xff,
67 ALPS_PASS
| ALPS_DUALPOINT
| ALPS_PS2_INTERLEAVED
}, /* Toshiba Tecra A11-11L */
71 * XXX - this entry is suspicious. First byte has zero lower nibble,
72 * which is what a normal mouse would report. Also, the value 0x0e
73 * isn't valid per PS/2 spec.
79 * byte 0: 0 0 YSGN XSGN 1 M R L
80 * byte 1: X7 X6 X5 X4 X3 X2 X1 X0
81 * byte 2: Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
83 * Note that the device never signals overflow condition.
85 * ALPS absolute Mode - new format
87 * byte 0: 1 ? ? ? 1 ? ? ?
88 * byte 1: 0 x6 x5 x4 x3 x2 x1 x0
89 * byte 2: 0 x10 x9 x8 x7 ? fin ges
90 * byte 3: 0 y9 y8 y7 1 M R L
91 * byte 4: 0 y6 y5 y4 y3 y2 y1 y0
92 * byte 5: 0 z6 z5 z4 z3 z2 z1 z0
94 * Dualpoint device -- interleaved packet format
96 * byte 0: 1 1 0 0 1 1 1 1
97 * byte 1: 0 x6 x5 x4 x3 x2 x1 x0
98 * byte 2: 0 x10 x9 x8 x7 0 fin ges
99 * byte 3: 0 0 YSGN XSGN 1 1 1 1
100 * byte 4: X7 X6 X5 X4 X3 X2 X1 X0
101 * byte 5: Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
102 * byte 6: 0 y9 y8 y7 1 m r l
103 * byte 7: 0 y6 y5 y4 y3 y2 y1 y0
104 * byte 8: 0 z6 z5 z4 z3 z2 z1 z0
106 * CAPITALS = stick, miniscules = touchpad
108 * ?'s can have different meanings on different models,
109 * such as wheel rotation, extra buttons, stick buttons
110 * on a dualpoint, etc.
113 static bool alps_is_valid_first_byte(const struct alps_model_info
*model
,
116 return (data
& model
->mask0
) == model
->byte0
;
119 static void alps_report_buttons(struct psmouse
*psmouse
,
120 struct input_dev
*dev1
, struct input_dev
*dev2
,
121 int left
, int right
, int middle
)
123 struct alps_data
*priv
= psmouse
->private;
124 const struct alps_model_info
*model
= priv
->i
;
126 if (model
->flags
& ALPS_PS2_INTERLEAVED
) {
127 struct input_dev
*dev
;
130 * If shared button has already been reported on the
131 * other device (dev2) then this event should be also
132 * sent through that device.
134 dev
= test_bit(BTN_LEFT
, dev2
->key
) ? dev2
: dev1
;
135 input_report_key(dev
, BTN_LEFT
, left
);
137 dev
= test_bit(BTN_RIGHT
, dev2
->key
) ? dev2
: dev1
;
138 input_report_key(dev
, BTN_RIGHT
, right
);
140 dev
= test_bit(BTN_MIDDLE
, dev2
->key
) ? dev2
: dev1
;
141 input_report_key(dev
, BTN_MIDDLE
, middle
);
144 * Sync the _other_ device now, we'll do the first
145 * device later once we report the rest of the events.
150 * For devices with non-interleaved packets we know what
151 * device buttons belong to so we can simply report them.
153 input_report_key(dev1
, BTN_LEFT
, left
);
154 input_report_key(dev1
, BTN_RIGHT
, right
);
155 input_report_key(dev1
, BTN_MIDDLE
, middle
);
159 static void alps_process_packet(struct psmouse
*psmouse
)
161 struct alps_data
*priv
= psmouse
->private;
162 const struct alps_model_info
*model
= priv
->i
;
163 unsigned char *packet
= psmouse
->packet
;
164 struct input_dev
*dev
= psmouse
->dev
;
165 struct input_dev
*dev2
= priv
->dev2
;
166 int x
, y
, z
, ges
, fin
, left
, right
, middle
;
167 int back
= 0, forward
= 0;
169 if (model
->flags
& ALPS_OLDPROTO
) {
170 left
= packet
[2] & 0x10;
171 right
= packet
[2] & 0x08;
173 x
= packet
[1] | ((packet
[0] & 0x07) << 7);
174 y
= packet
[4] | ((packet
[3] & 0x07) << 7);
177 left
= packet
[3] & 1;
178 right
= packet
[3] & 2;
179 middle
= packet
[3] & 4;
180 x
= packet
[1] | ((packet
[2] & 0x78) << (7 - 3));
181 y
= packet
[4] | ((packet
[3] & 0x70) << (7 - 4));
185 if (model
->flags
& ALPS_FW_BK_1
) {
186 back
= packet
[0] & 0x10;
187 forward
= packet
[2] & 4;
190 if (model
->flags
& ALPS_FW_BK_2
) {
191 back
= packet
[3] & 4;
192 forward
= packet
[2] & 4;
193 if ((middle
= forward
&& back
))
200 if ((model
->flags
& ALPS_DUALPOINT
) && z
== 127) {
201 input_report_rel(dev2
, REL_X
, (x
> 383 ? (x
- 768) : x
));
202 input_report_rel(dev2
, REL_Y
, -(y
> 255 ? (y
- 512) : y
));
204 alps_report_buttons(psmouse
, dev2
, dev
, left
, right
, middle
);
210 alps_report_buttons(psmouse
, dev
, dev2
, left
, right
, middle
);
212 /* Convert hardware tap to a reasonable Z value */
217 * A "tap and drag" operation is reported by the hardware as a transition
218 * from (!fin && ges) to (fin && ges). This should be translated to the
219 * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually.
221 if (ges
&& fin
&& !priv
->prev_fin
) {
222 input_report_abs(dev
, ABS_X
, x
);
223 input_report_abs(dev
, ABS_Y
, y
);
224 input_report_abs(dev
, ABS_PRESSURE
, 0);
225 input_report_key(dev
, BTN_TOOL_FINGER
, 0);
228 priv
->prev_fin
= fin
;
231 input_report_key(dev
, BTN_TOUCH
, 1);
233 input_report_key(dev
, BTN_TOUCH
, 0);
236 input_report_abs(dev
, ABS_X
, x
);
237 input_report_abs(dev
, ABS_Y
, y
);
240 input_report_abs(dev
, ABS_PRESSURE
, z
);
241 input_report_key(dev
, BTN_TOOL_FINGER
, z
> 0);
243 if (model
->flags
& ALPS_WHEEL
)
244 input_report_rel(dev
, REL_WHEEL
, ((packet
[2] << 1) & 0x08) - ((packet
[0] >> 4) & 0x07));
246 if (model
->flags
& (ALPS_FW_BK_1
| ALPS_FW_BK_2
)) {
247 input_report_key(dev
, BTN_FORWARD
, forward
);
248 input_report_key(dev
, BTN_BACK
, back
);
251 if (model
->flags
& ALPS_FOUR_BUTTONS
) {
252 input_report_key(dev
, BTN_0
, packet
[2] & 4);
253 input_report_key(dev
, BTN_1
, packet
[0] & 0x10);
254 input_report_key(dev
, BTN_2
, packet
[3] & 4);
255 input_report_key(dev
, BTN_3
, packet
[0] & 0x20);
261 static void alps_report_bare_ps2_packet(struct psmouse
*psmouse
,
262 unsigned char packet
[],
265 struct alps_data
*priv
= psmouse
->private;
266 struct input_dev
*dev2
= priv
->dev2
;
269 alps_report_buttons(psmouse
, dev2
, psmouse
->dev
,
270 packet
[0] & 1, packet
[0] & 2, packet
[0] & 4);
272 input_report_rel(dev2
, REL_X
,
273 packet
[1] ? packet
[1] - ((packet
[0] << 4) & 0x100) : 0);
274 input_report_rel(dev2
, REL_Y
,
275 packet
[2] ? ((packet
[0] << 3) & 0x100) - packet
[2] : 0);
280 static psmouse_ret_t
alps_handle_interleaved_ps2(struct psmouse
*psmouse
)
282 struct alps_data
*priv
= psmouse
->private;
284 if (psmouse
->pktcnt
< 6)
285 return PSMOUSE_GOOD_DATA
;
287 if (psmouse
->pktcnt
== 6) {
289 * Start a timer to flush the packet if it ends up last
290 * 6-byte packet in the stream. Timer needs to fire
291 * psmouse core times out itself. 20 ms should be enough
292 * to decide if we are getting more data or not.
294 mod_timer(&priv
->timer
, jiffies
+ msecs_to_jiffies(20));
295 return PSMOUSE_GOOD_DATA
;
298 del_timer(&priv
->timer
);
300 if (psmouse
->packet
[6] & 0x80) {
303 * Highest bit is set - that means we either had
304 * complete ALPS packet and this is start of the
305 * next packet or we got garbage.
308 if (((psmouse
->packet
[3] |
310 psmouse
->packet
[5]) & 0x80) ||
311 (!alps_is_valid_first_byte(priv
->i
, psmouse
->packet
[6]))) {
312 dbg("refusing packet %x %x %x %x "
313 "(suspected interleaved ps/2)\n",
314 psmouse
->packet
[3], psmouse
->packet
[4],
315 psmouse
->packet
[5], psmouse
->packet
[6]);
316 return PSMOUSE_BAD_DATA
;
319 alps_process_packet(psmouse
);
321 /* Continue with the next packet */
322 psmouse
->packet
[0] = psmouse
->packet
[6];
328 * High bit is 0 - that means that we indeed got a PS/2
329 * packet in the middle of ALPS packet.
331 * There is also possibility that we got 6-byte ALPS
332 * packet followed by 3-byte packet from trackpoint. We
333 * can not distinguish between these 2 scenarios but
334 * becase the latter is unlikely to happen in course of
335 * normal operation (user would need to press all
336 * buttons on the pad and start moving trackpoint
337 * without touching the pad surface) we assume former.
338 * Even if we are wrong the wost thing that would happen
339 * the cursor would jump but we should not get protocol
343 alps_report_bare_ps2_packet(psmouse
, &psmouse
->packet
[3],
347 * Continue with the standard ALPS protocol handling,
348 * but make sure we won't process it as an interleaved
349 * packet again, which may happen if all buttons are
350 * pressed. To avoid this let's reset the 4th bit which
353 psmouse
->packet
[3] = psmouse
->packet
[6] & 0xf7;
357 return PSMOUSE_GOOD_DATA
;
360 static void alps_flush_packet(unsigned long data
)
362 struct psmouse
*psmouse
= (struct psmouse
*)data
;
364 serio_pause_rx(psmouse
->ps2dev
.serio
);
366 if (psmouse
->pktcnt
== 6) {
369 * We did not any more data in reasonable amount of time.
370 * Validate the last 3 bytes and process as a standard
373 if ((psmouse
->packet
[3] |
375 psmouse
->packet
[5]) & 0x80) {
376 dbg("refusing packet %x %x %x "
377 "(suspected interleaved ps/2)\n",
378 psmouse
->packet
[3], psmouse
->packet
[4],
381 alps_process_packet(psmouse
);
386 serio_continue_rx(psmouse
->ps2dev
.serio
);
389 static psmouse_ret_t
alps_process_byte(struct psmouse
*psmouse
)
391 struct alps_data
*priv
= psmouse
->private;
392 const struct alps_model_info
*model
= priv
->i
;
394 if ((psmouse
->packet
[0] & 0xc8) == 0x08) { /* PS/2 packet */
395 if (psmouse
->pktcnt
== 3) {
396 alps_report_bare_ps2_packet(psmouse
, psmouse
->packet
,
398 return PSMOUSE_FULL_PACKET
;
400 return PSMOUSE_GOOD_DATA
;
403 /* Check for PS/2 packet stuffed in the middle of ALPS packet. */
405 if ((model
->flags
& ALPS_PS2_INTERLEAVED
) &&
406 psmouse
->pktcnt
>= 4 && (psmouse
->packet
[3] & 0x0f) == 0x0f) {
407 return alps_handle_interleaved_ps2(psmouse
);
410 if (!alps_is_valid_first_byte(model
, psmouse
->packet
[0])) {
411 dbg("refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n",
412 psmouse
->packet
[0], model
->mask0
, model
->byte0
);
413 return PSMOUSE_BAD_DATA
;
416 /* Bytes 2 - 6 should have 0 in the highest bit */
417 if (psmouse
->pktcnt
>= 2 && psmouse
->pktcnt
<= 6 &&
418 (psmouse
->packet
[psmouse
->pktcnt
- 1] & 0x80)) {
419 dbg("refusing packet[%i] = %x\n",
420 psmouse
->pktcnt
- 1, psmouse
->packet
[psmouse
->pktcnt
- 1]);
421 return PSMOUSE_BAD_DATA
;
424 if (psmouse
->pktcnt
== 6) {
425 alps_process_packet(psmouse
);
426 return PSMOUSE_FULL_PACKET
;
429 return PSMOUSE_GOOD_DATA
;
432 static const struct alps_model_info
*alps_get_model(struct psmouse
*psmouse
, int *version
)
434 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
435 static const unsigned char rates
[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
436 unsigned char param
[4];
440 * First try "E6 report".
441 * ALPS should return 0,0,10 or 0,0,100
444 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_SETRES
) ||
445 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
446 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
447 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
))
450 param
[0] = param
[1] = param
[2] = 0xff;
451 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
454 dbg("E6 report: %2.2x %2.2x %2.2x", param
[0], param
[1], param
[2]);
456 if (param
[0] != 0 || param
[1] != 0 || (param
[2] != 10 && param
[2] != 100))
460 * Now try "E7 report". Allowed responses are in
461 * alps_model_data[].signature
464 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_SETRES
) ||
465 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE21
) ||
466 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE21
) ||
467 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE21
))
470 param
[0] = param
[1] = param
[2] = 0xff;
471 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
474 dbg("E7 report: %2.2x %2.2x %2.2x", param
[0], param
[1], param
[2]);
477 for (i
= 0; i
< ARRAY_SIZE(rates
) && param
[2] != rates
[i
]; i
++)
479 *version
= (param
[0] << 8) | (param
[1] << 4) | i
;
482 for (i
= 0; i
< ARRAY_SIZE(alps_model_data
); i
++)
483 if (!memcmp(param
, alps_model_data
[i
].signature
,
484 sizeof(alps_model_data
[i
].signature
)))
485 return alps_model_data
+ i
;
491 * For DualPoint devices select the device that should respond to
492 * subsequent commands. It looks like glidepad is behind stickpointer,
493 * I'd thought it would be other way around...
495 static int alps_passthrough_mode(struct psmouse
*psmouse
, bool enable
)
497 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
498 int cmd
= enable
? PSMOUSE_CMD_SETSCALE21
: PSMOUSE_CMD_SETSCALE11
;
500 if (ps2_command(ps2dev
, NULL
, cmd
) ||
501 ps2_command(ps2dev
, NULL
, cmd
) ||
502 ps2_command(ps2dev
, NULL
, cmd
) ||
503 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
))
506 /* we may get 3 more bytes, just ignore them */
507 ps2_drain(ps2dev
, 3, 100);
512 static int alps_absolute_mode(struct psmouse
*psmouse
)
514 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
516 /* Try ALPS magic knock - 4 disable before enable */
517 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
518 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
519 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
520 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
521 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
))
525 * Switch mouse to poll (remote) mode so motion data will not
528 return ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETPOLL
);
531 static int alps_get_status(struct psmouse
*psmouse
, char *param
)
533 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
535 /* Get status: 0xF5 0xF5 0xF5 0xE9 */
536 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
537 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
538 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
539 ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
542 dbg("Status: %2.2x %2.2x %2.2x", param
[0], param
[1], param
[2]);
548 * Turn touchpad tapping on or off. The sequences are:
549 * 0xE9 0xF5 0xF5 0xF3 0x0A to enable,
550 * 0xE9 0xF5 0xF5 0xE8 0x00 to disable.
551 * My guess that 0xE9 (GetInfo) is here as a sync point.
552 * For models that also have stickpointer (DualPoints) its tapping
553 * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but
554 * we don't fiddle with it.
556 static int alps_tap_mode(struct psmouse
*psmouse
, int enable
)
558 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
559 int cmd
= enable
? PSMOUSE_CMD_SETRATE
: PSMOUSE_CMD_SETRES
;
560 unsigned char tap_arg
= enable
? 0x0A : 0x00;
561 unsigned char param
[4];
563 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
) ||
564 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
565 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
566 ps2_command(ps2dev
, &tap_arg
, cmd
))
569 if (alps_get_status(psmouse
, param
))
576 * alps_poll() - poll the touchpad for current motion packet.
579 static int alps_poll(struct psmouse
*psmouse
)
581 struct alps_data
*priv
= psmouse
->private;
582 unsigned char buf
[6];
585 if (priv
->i
->flags
& ALPS_PASS
)
586 alps_passthrough_mode(psmouse
, true);
588 poll_failed
= ps2_command(&psmouse
->ps2dev
, buf
,
589 PSMOUSE_CMD_POLL
| (psmouse
->pktsize
<< 8)) < 0;
591 if (priv
->i
->flags
& ALPS_PASS
)
592 alps_passthrough_mode(psmouse
, false);
594 if (poll_failed
|| (buf
[0] & priv
->i
->mask0
) != priv
->i
->byte0
)
597 if ((psmouse
->badbyte
& 0xc8) == 0x08) {
599 * Poll the track stick ...
601 if (ps2_command(&psmouse
->ps2dev
, buf
, PSMOUSE_CMD_POLL
| (3 << 8)))
605 memcpy(psmouse
->packet
, buf
, sizeof(buf
));
609 static int alps_hw_init(struct psmouse
*psmouse
)
611 struct alps_data
*priv
= psmouse
->private;
612 const struct alps_model_info
*model
= priv
->i
;
614 if ((model
->flags
& ALPS_PASS
) &&
615 alps_passthrough_mode(psmouse
, true)) {
619 if (alps_tap_mode(psmouse
, true)) {
620 printk(KERN_WARNING
"alps.c: Failed to enable hardware tapping\n");
624 if (alps_absolute_mode(psmouse
)) {
625 printk(KERN_ERR
"alps.c: Failed to enable absolute mode\n");
629 if ((model
->flags
& ALPS_PASS
) &&
630 alps_passthrough_mode(psmouse
, false)) {
634 /* ALPS needs stream mode, otherwise it won't report any data */
635 if (ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
)) {
636 printk(KERN_ERR
"alps.c: Failed to enable stream mode\n");
643 static int alps_reconnect(struct psmouse
*psmouse
)
645 const struct alps_model_info
*model
;
647 psmouse_reset(psmouse
);
649 model
= alps_get_model(psmouse
, NULL
);
653 return alps_hw_init(psmouse
);
656 static void alps_disconnect(struct psmouse
*psmouse
)
658 struct alps_data
*priv
= psmouse
->private;
660 psmouse_reset(psmouse
);
661 del_timer_sync(&priv
->timer
);
662 input_unregister_device(priv
->dev2
);
666 int alps_init(struct psmouse
*psmouse
)
668 struct alps_data
*priv
;
669 const struct alps_model_info
*model
;
670 struct input_dev
*dev1
= psmouse
->dev
, *dev2
;
673 priv
= kzalloc(sizeof(struct alps_data
), GFP_KERNEL
);
674 dev2
= input_allocate_device();
679 setup_timer(&priv
->timer
, alps_flush_packet
, (unsigned long)psmouse
);
681 psmouse
->private = priv
;
683 model
= alps_get_model(psmouse
, &version
);
689 if (alps_hw_init(psmouse
))
693 * Undo part of setup done for us by psmouse core since touchpad
694 * is not a relative device.
696 __clear_bit(EV_REL
, dev1
->evbit
);
697 __clear_bit(REL_X
, dev1
->relbit
);
698 __clear_bit(REL_Y
, dev1
->relbit
);
701 * Now set up our capabilities.
703 dev1
->evbit
[BIT_WORD(EV_KEY
)] |= BIT_MASK(EV_KEY
);
704 dev1
->keybit
[BIT_WORD(BTN_TOUCH
)] |= BIT_MASK(BTN_TOUCH
);
705 dev1
->keybit
[BIT_WORD(BTN_TOOL_FINGER
)] |= BIT_MASK(BTN_TOOL_FINGER
);
706 dev1
->keybit
[BIT_WORD(BTN_LEFT
)] |=
707 BIT_MASK(BTN_LEFT
) | BIT_MASK(BTN_RIGHT
);
709 dev1
->evbit
[BIT_WORD(EV_ABS
)] |= BIT_MASK(EV_ABS
);
710 input_set_abs_params(dev1
, ABS_X
, 0, 1023, 0, 0);
711 input_set_abs_params(dev1
, ABS_Y
, 0, 767, 0, 0);
712 input_set_abs_params(dev1
, ABS_PRESSURE
, 0, 127, 0, 0);
714 if (model
->flags
& ALPS_WHEEL
) {
715 dev1
->evbit
[BIT_WORD(EV_REL
)] |= BIT_MASK(EV_REL
);
716 dev1
->relbit
[BIT_WORD(REL_WHEEL
)] |= BIT_MASK(REL_WHEEL
);
719 if (model
->flags
& (ALPS_FW_BK_1
| ALPS_FW_BK_2
)) {
720 dev1
->keybit
[BIT_WORD(BTN_FORWARD
)] |= BIT_MASK(BTN_FORWARD
);
721 dev1
->keybit
[BIT_WORD(BTN_BACK
)] |= BIT_MASK(BTN_BACK
);
724 if (model
->flags
& ALPS_FOUR_BUTTONS
) {
725 dev1
->keybit
[BIT_WORD(BTN_0
)] |= BIT_MASK(BTN_0
);
726 dev1
->keybit
[BIT_WORD(BTN_1
)] |= BIT_MASK(BTN_1
);
727 dev1
->keybit
[BIT_WORD(BTN_2
)] |= BIT_MASK(BTN_2
);
728 dev1
->keybit
[BIT_WORD(BTN_3
)] |= BIT_MASK(BTN_3
);
730 dev1
->keybit
[BIT_WORD(BTN_MIDDLE
)] |= BIT_MASK(BTN_MIDDLE
);
733 snprintf(priv
->phys
, sizeof(priv
->phys
), "%s/input1", psmouse
->ps2dev
.serio
->phys
);
734 dev2
->phys
= priv
->phys
;
735 dev2
->name
= (model
->flags
& ALPS_DUALPOINT
) ? "DualPoint Stick" : "PS/2 Mouse";
736 dev2
->id
.bustype
= BUS_I8042
;
737 dev2
->id
.vendor
= 0x0002;
738 dev2
->id
.product
= PSMOUSE_ALPS
;
739 dev2
->id
.version
= 0x0000;
740 dev2
->dev
.parent
= &psmouse
->ps2dev
.serio
->dev
;
742 dev2
->evbit
[0] = BIT_MASK(EV_KEY
) | BIT_MASK(EV_REL
);
743 dev2
->relbit
[BIT_WORD(REL_X
)] = BIT_MASK(REL_X
) | BIT_MASK(REL_Y
);
744 dev2
->keybit
[BIT_WORD(BTN_LEFT
)] =
745 BIT_MASK(BTN_LEFT
) | BIT_MASK(BTN_MIDDLE
) | BIT_MASK(BTN_RIGHT
);
747 if (input_register_device(priv
->dev2
))
750 psmouse
->protocol_handler
= alps_process_byte
;
751 psmouse
->poll
= alps_poll
;
752 psmouse
->disconnect
= alps_disconnect
;
753 psmouse
->reconnect
= alps_reconnect
;
754 psmouse
->pktsize
= 6;
756 /* We are having trouble resyncing ALPS touchpads so disable it for now */
757 psmouse
->resync_time
= 0;
762 psmouse_reset(psmouse
);
763 input_free_device(dev2
);
765 psmouse
->private = NULL
;
769 int alps_detect(struct psmouse
*psmouse
, bool set_properties
)
772 const struct alps_model_info
*model
;
774 model
= alps_get_model(psmouse
, &version
);
778 if (set_properties
) {
779 psmouse
->vendor
= "ALPS";
780 psmouse
->name
= model
->flags
& ALPS_DUALPOINT
?
781 "DualPoint TouchPad" : "GlidePoint";
782 psmouse
->model
= version
;