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Stephen Evanchik541e3162005-08-08 01:26:18 -05001/*
2 * Stephen Evanchik <evanchsa@gmail.com>
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 as published by
6 * the Free Software Foundation.
7 *
8 * Trademarks are the property of their respective owners.
9 */
10
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090011#include <linux/slab.h>
Stephen Evanchik541e3162005-08-08 01:26:18 -050012#include <linux/delay.h>
13#include <linux/serio.h>
14#include <linux/module.h>
Stephen Evanchik541e3162005-08-08 01:26:18 -050015#include <linux/input.h>
16#include <linux/libps2.h>
17#include <linux/proc_fs.h>
18#include <asm/uaccess.h>
19#include "psmouse.h"
20#include "trackpoint.h"
21
Stephen Evanchik541e3162005-08-08 01:26:18 -050022/*
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -070023 * Power-on Reset: Resets all trackpoint parameters, including RAM values,
24 * to defaults.
25 * Returns zero on success, non-zero on failure.
26 */
27static int trackpoint_power_on_reset(struct ps2dev *ps2dev)
28{
29 unsigned char results[2];
30 int tries = 0;
31
32 /* Issue POR command, and repeat up to once if 0xFC00 received */
33 do {
34 if (ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_COMMAND)) ||
35 ps2_command(ps2dev, results, MAKE_PS2_CMD(0, 2, TP_POR)))
36 return -1;
37 } while (results[0] == 0xFC && results[1] == 0x00 && ++tries < 2);
38
39 /* Check for success response -- 0xAA00 */
40 if (results[0] != 0xAA || results[1] != 0x00)
41 return -1;
42
43 return 0;
44}
45
46/*
Stephen Evanchik541e3162005-08-08 01:26:18 -050047 * Device IO: read, write and toggle bit
48 */
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -070049static int trackpoint_read(struct ps2dev *ps2dev,
50 unsigned char loc, unsigned char *results)
Stephen Evanchik541e3162005-08-08 01:26:18 -050051{
52 if (ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_COMMAND)) ||
53 ps2_command(ps2dev, results, MAKE_PS2_CMD(0, 1, loc))) {
54 return -1;
55 }
56
57 return 0;
58}
59
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -070060static int trackpoint_write(struct ps2dev *ps2dev,
61 unsigned char loc, unsigned char val)
Stephen Evanchik541e3162005-08-08 01:26:18 -050062{
63 if (ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_COMMAND)) ||
64 ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_WRITE_MEM)) ||
65 ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, loc)) ||
66 ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, val))) {
67 return -1;
68 }
69
70 return 0;
71}
72
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -070073static int trackpoint_toggle_bit(struct ps2dev *ps2dev,
74 unsigned char loc, unsigned char mask)
Stephen Evanchik541e3162005-08-08 01:26:18 -050075{
76 /* Bad things will happen if the loc param isn't in this range */
77 if (loc < 0x20 || loc >= 0x2F)
78 return -1;
79
80 if (ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_COMMAND)) ||
81 ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_TOGGLE)) ||
82 ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, loc)) ||
83 ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, mask))) {
84 return -1;
85 }
86
87 return 0;
88}
89
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -070090static int trackpoint_update_bit(struct ps2dev *ps2dev, unsigned char loc,
91 unsigned char mask, unsigned char value)
92{
93 int retval = 0;
94 unsigned char data;
95
96 trackpoint_read(ps2dev, loc, &data);
97 if (((data & mask) == mask) != !!value)
98 retval = trackpoint_toggle_bit(ps2dev, loc, mask);
99
100 return retval;
101}
Stephen Evanchik541e3162005-08-08 01:26:18 -0500102
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500103/*
104 * Trackpoint-specific attributes
105 */
106struct trackpoint_attr_data {
107 size_t field_offset;
108 unsigned char command;
109 unsigned char mask;
Dmitry Torokhovb8044c72006-02-15 00:49:09 -0500110 unsigned char inverted;
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700111 unsigned char power_on_default;
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500112};
Stephen Evanchik541e3162005-08-08 01:26:18 -0500113
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500114static ssize_t trackpoint_show_int_attr(struct psmouse *psmouse, void *data, char *buf)
115{
116 struct trackpoint_data *tp = psmouse->private;
117 struct trackpoint_attr_data *attr = data;
Dmitry Torokhovb8044c72006-02-15 00:49:09 -0500118 unsigned char value = *(unsigned char *)((char *)tp + attr->field_offset);
Stephen Evanchik541e3162005-08-08 01:26:18 -0500119
Dmitry Torokhovb8044c72006-02-15 00:49:09 -0500120 if (attr->inverted)
121 value = !value;
122
123 return sprintf(buf, "%u\n", value);
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500124}
Stephen Evanchik541e3162005-08-08 01:26:18 -0500125
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500126static ssize_t trackpoint_set_int_attr(struct psmouse *psmouse, void *data,
127 const char *buf, size_t count)
128{
129 struct trackpoint_data *tp = psmouse->private;
130 struct trackpoint_attr_data *attr = data;
131 unsigned char *field = (unsigned char *)((char *)tp + attr->field_offset);
JJ Ding76496e72011-11-09 10:20:14 -0800132 unsigned char value;
133 int err;
Stephen Evanchik541e3162005-08-08 01:26:18 -0500134
JJ Ding76496e72011-11-09 10:20:14 -0800135 err = kstrtou8(buf, 10, &value);
136 if (err)
137 return err;
Stephen Evanchik541e3162005-08-08 01:26:18 -0500138
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500139 *field = value;
140 trackpoint_write(&psmouse->ps2dev, attr->command, value);
Stephen Evanchik541e3162005-08-08 01:26:18 -0500141
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500142 return count;
143}
Stephen Evanchik541e3162005-08-08 01:26:18 -0500144
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700145#define TRACKPOINT_INT_ATTR(_name, _command, _default) \
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500146 static struct trackpoint_attr_data trackpoint_attr_##_name = { \
147 .field_offset = offsetof(struct trackpoint_data, _name), \
148 .command = _command, \
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700149 .power_on_default = _default, \
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500150 }; \
151 PSMOUSE_DEFINE_ATTR(_name, S_IWUSR | S_IRUGO, \
152 &trackpoint_attr_##_name, \
153 trackpoint_show_int_attr, trackpoint_set_int_attr)
Stephen Evanchik541e3162005-08-08 01:26:18 -0500154
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500155static ssize_t trackpoint_set_bit_attr(struct psmouse *psmouse, void *data,
156 const char *buf, size_t count)
157{
158 struct trackpoint_data *tp = psmouse->private;
159 struct trackpoint_attr_data *attr = data;
160 unsigned char *field = (unsigned char *)((char *)tp + attr->field_offset);
JJ Ding76496e72011-11-09 10:20:14 -0800161 unsigned int value;
162 int err;
Stephen Evanchik541e3162005-08-08 01:26:18 -0500163
JJ Ding76496e72011-11-09 10:20:14 -0800164 err = kstrtouint(buf, 10, &value);
165 if (err)
166 return err;
167
168 if (value > 1)
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500169 return -EINVAL;
Stephen Evanchik541e3162005-08-08 01:26:18 -0500170
Dmitry Torokhovb8044c72006-02-15 00:49:09 -0500171 if (attr->inverted)
172 value = !value;
173
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500174 if (*field != value) {
175 *field = value;
176 trackpoint_toggle_bit(&psmouse->ps2dev, attr->command, attr->mask);
177 }
Stephen Evanchik541e3162005-08-08 01:26:18 -0500178
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500179 return count;
180}
181
182
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700183#define TRACKPOINT_BIT_ATTR(_name, _command, _mask, _inv, _default) \
184static struct trackpoint_attr_data trackpoint_attr_##_name = { \
185 .field_offset = offsetof(struct trackpoint_data, \
186 _name), \
187 .command = _command, \
188 .mask = _mask, \
189 .inverted = _inv, \
190 .power_on_default = _default, \
191 }; \
192PSMOUSE_DEFINE_ATTR(_name, S_IWUSR | S_IRUGO, \
193 &trackpoint_attr_##_name, \
194 trackpoint_show_int_attr, trackpoint_set_bit_attr)
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500195
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700196#define TRACKPOINT_UPDATE_BIT(_psmouse, _tp, _name) \
197do { \
198 struct trackpoint_attr_data *_attr = &trackpoint_attr_##_name; \
199 \
200 trackpoint_update_bit(&_psmouse->ps2dev, \
201 _attr->command, _attr->mask, _tp->_name); \
202} while (0)
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500203
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700204#define TRACKPOINT_UPDATE(_power_on, _psmouse, _tp, _name) \
205do { \
206 if (!_power_on || \
207 _tp->_name != trackpoint_attr_##_name.power_on_default) { \
208 if (!trackpoint_attr_##_name.mask) \
209 trackpoint_write(&_psmouse->ps2dev, \
210 trackpoint_attr_##_name.command, \
211 _tp->_name); \
212 else \
213 TRACKPOINT_UPDATE_BIT(_psmouse, _tp, _name); \
214 } \
215} while (0)
216
217#define TRACKPOINT_SET_POWER_ON_DEFAULT(_tp, _name) \
218 (_tp->_name = trackpoint_attr_##_name.power_on_default)
219
220TRACKPOINT_INT_ATTR(sensitivity, TP_SENS, TP_DEF_SENS);
221TRACKPOINT_INT_ATTR(speed, TP_SPEED, TP_DEF_SPEED);
222TRACKPOINT_INT_ATTR(inertia, TP_INERTIA, TP_DEF_INERTIA);
223TRACKPOINT_INT_ATTR(reach, TP_REACH, TP_DEF_REACH);
224TRACKPOINT_INT_ATTR(draghys, TP_DRAGHYS, TP_DEF_DRAGHYS);
225TRACKPOINT_INT_ATTR(mindrag, TP_MINDRAG, TP_DEF_MINDRAG);
226TRACKPOINT_INT_ATTR(thresh, TP_THRESH, TP_DEF_THRESH);
227TRACKPOINT_INT_ATTR(upthresh, TP_UP_THRESH, TP_DEF_UP_THRESH);
228TRACKPOINT_INT_ATTR(ztime, TP_Z_TIME, TP_DEF_Z_TIME);
229TRACKPOINT_INT_ATTR(jenks, TP_JENKS_CURV, TP_DEF_JENKS_CURV);
230
231TRACKPOINT_BIT_ATTR(press_to_select, TP_TOGGLE_PTSON, TP_MASK_PTSON, 0,
232 TP_DEF_PTSON);
233TRACKPOINT_BIT_ATTR(skipback, TP_TOGGLE_SKIPBACK, TP_MASK_SKIPBACK, 0,
234 TP_DEF_SKIPBACK);
235TRACKPOINT_BIT_ATTR(ext_dev, TP_TOGGLE_EXT_DEV, TP_MASK_EXT_DEV, 1,
236 TP_DEF_EXT_DEV);
Stephen Evanchik541e3162005-08-08 01:26:18 -0500237
238static struct attribute *trackpoint_attrs[] = {
Dmitry Torokhovcfe9e882005-09-04 01:40:20 -0500239 &psmouse_attr_sensitivity.dattr.attr,
240 &psmouse_attr_speed.dattr.attr,
241 &psmouse_attr_inertia.dattr.attr,
242 &psmouse_attr_reach.dattr.attr,
243 &psmouse_attr_draghys.dattr.attr,
244 &psmouse_attr_mindrag.dattr.attr,
245 &psmouse_attr_thresh.dattr.attr,
246 &psmouse_attr_upthresh.dattr.attr,
247 &psmouse_attr_ztime.dattr.attr,
248 &psmouse_attr_jenks.dattr.attr,
249 &psmouse_attr_press_to_select.dattr.attr,
250 &psmouse_attr_skipback.dattr.attr,
251 &psmouse_attr_ext_dev.dattr.attr,
Stephen Evanchik541e3162005-08-08 01:26:18 -0500252 NULL
253};
254
255static struct attribute_group trackpoint_attr_group = {
256 .attrs = trackpoint_attrs,
257};
258
Dmitry Torokhov184dd272006-08-04 22:52:26 -0400259static int trackpoint_start_protocol(struct psmouse *psmouse, unsigned char *firmware_id)
Stephen Evanchik541e3162005-08-08 01:26:18 -0500260{
Dmitry Torokhov184dd272006-08-04 22:52:26 -0400261 unsigned char param[2] = { 0 };
Stephen Evanchik541e3162005-08-08 01:26:18 -0500262
Dmitry Torokhov184dd272006-08-04 22:52:26 -0400263 if (ps2_command(&psmouse->ps2dev, param, MAKE_PS2_CMD(0, 2, TP_READ_ID)))
264 return -1;
265
266 if (param[0] != TP_MAGIC_IDENT)
267 return -1;
268
269 if (firmware_id)
270 *firmware_id = param[1];
271
272 return 0;
Stephen Evanchik541e3162005-08-08 01:26:18 -0500273}
274
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700275/*
276 * Write parameters to trackpad.
277 * in_power_on_state: Set to true if TP is in default / power-on state (ex. if
278 * power-on reset was run). If so, values will only be
279 * written to TP if they differ from power-on default.
280 */
281static int trackpoint_sync(struct psmouse *psmouse, bool in_power_on_state)
Stephen Evanchik541e3162005-08-08 01:26:18 -0500282{
Stephen Evanchik541e3162005-08-08 01:26:18 -0500283 struct trackpoint_data *tp = psmouse->private;
Stephen Evanchik541e3162005-08-08 01:26:18 -0500284
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700285 if (!in_power_on_state) {
286 /*
287 * Disable features that may make device unusable
288 * with this driver.
289 */
290 trackpoint_update_bit(&psmouse->ps2dev, TP_TOGGLE_TWOHAND,
291 TP_MASK_TWOHAND, TP_DEF_TWOHAND);
Stephen Evanchik541e3162005-08-08 01:26:18 -0500292
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700293 trackpoint_update_bit(&psmouse->ps2dev, TP_TOGGLE_SOURCE_TAG,
294 TP_MASK_SOURCE_TAG, TP_DEF_SOURCE_TAG);
Stephen Evanchik541e3162005-08-08 01:26:18 -0500295
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700296 trackpoint_update_bit(&psmouse->ps2dev, TP_TOGGLE_MB,
297 TP_MASK_MB, TP_DEF_MB);
298 }
Stephen Evanchik541e3162005-08-08 01:26:18 -0500299
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700300 /*
301 * These properties can be changed in this driver. Only
302 * configure them if the values are non-default or if the TP is in
303 * an unknown state.
304 */
305 TRACKPOINT_UPDATE(in_power_on_state, psmouse, tp, sensitivity);
306 TRACKPOINT_UPDATE(in_power_on_state, psmouse, tp, inertia);
307 TRACKPOINT_UPDATE(in_power_on_state, psmouse, tp, speed);
308 TRACKPOINT_UPDATE(in_power_on_state, psmouse, tp, reach);
309 TRACKPOINT_UPDATE(in_power_on_state, psmouse, tp, draghys);
310 TRACKPOINT_UPDATE(in_power_on_state, psmouse, tp, mindrag);
311 TRACKPOINT_UPDATE(in_power_on_state, psmouse, tp, thresh);
312 TRACKPOINT_UPDATE(in_power_on_state, psmouse, tp, upthresh);
313 TRACKPOINT_UPDATE(in_power_on_state, psmouse, tp, ztime);
314 TRACKPOINT_UPDATE(in_power_on_state, psmouse, tp, jenks);
Stephen Evanchik541e3162005-08-08 01:26:18 -0500315
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700316 /* toggles */
317 TRACKPOINT_UPDATE(in_power_on_state, psmouse, tp, press_to_select);
318 TRACKPOINT_UPDATE(in_power_on_state, psmouse, tp, skipback);
319 TRACKPOINT_UPDATE(in_power_on_state, psmouse, tp, ext_dev);
Stephen Evanchik541e3162005-08-08 01:26:18 -0500320
321 return 0;
322}
323
324static void trackpoint_defaults(struct trackpoint_data *tp)
325{
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700326 TRACKPOINT_SET_POWER_ON_DEFAULT(tp, sensitivity);
327 TRACKPOINT_SET_POWER_ON_DEFAULT(tp, speed);
328 TRACKPOINT_SET_POWER_ON_DEFAULT(tp, reach);
329 TRACKPOINT_SET_POWER_ON_DEFAULT(tp, draghys);
330 TRACKPOINT_SET_POWER_ON_DEFAULT(tp, mindrag);
331 TRACKPOINT_SET_POWER_ON_DEFAULT(tp, thresh);
332 TRACKPOINT_SET_POWER_ON_DEFAULT(tp, upthresh);
333 TRACKPOINT_SET_POWER_ON_DEFAULT(tp, ztime);
334 TRACKPOINT_SET_POWER_ON_DEFAULT(tp, jenks);
335 TRACKPOINT_SET_POWER_ON_DEFAULT(tp, inertia);
Stephen Evanchik541e3162005-08-08 01:26:18 -0500336
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700337 /* toggles */
338 TRACKPOINT_SET_POWER_ON_DEFAULT(tp, press_to_select);
339 TRACKPOINT_SET_POWER_ON_DEFAULT(tp, skipback);
340 TRACKPOINT_SET_POWER_ON_DEFAULT(tp, ext_dev);
Stephen Evanchik541e3162005-08-08 01:26:18 -0500341}
342
Dmitry Torokhov184dd272006-08-04 22:52:26 -0400343static void trackpoint_disconnect(struct psmouse *psmouse)
344{
345 sysfs_remove_group(&psmouse->ps2dev.serio->dev.kobj, &trackpoint_attr_group);
346
347 kfree(psmouse->private);
348 psmouse->private = NULL;
349}
350
351static int trackpoint_reconnect(struct psmouse *psmouse)
352{
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700353 int reset_fail;
354
Dmitry Torokhov184dd272006-08-04 22:52:26 -0400355 if (trackpoint_start_protocol(psmouse, NULL))
356 return -1;
357
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700358 reset_fail = trackpoint_power_on_reset(&psmouse->ps2dev);
359 if (trackpoint_sync(psmouse, !reset_fail))
Dmitry Torokhov184dd272006-08-04 22:52:26 -0400360 return -1;
361
362 return 0;
363}
364
Dmitry Torokhovb7802c52009-09-09 19:13:20 -0700365int trackpoint_detect(struct psmouse *psmouse, bool set_properties)
Stephen Evanchik541e3162005-08-08 01:26:18 -0500366{
Stephen Evanchik541e3162005-08-08 01:26:18 -0500367 struct ps2dev *ps2dev = &psmouse->ps2dev;
368 unsigned char firmware_id;
369 unsigned char button_info;
Jeff Garzik8ff22ea2006-11-02 23:59:30 -0500370 int error;
Stephen Evanchik541e3162005-08-08 01:26:18 -0500371
Dmitry Torokhov184dd272006-08-04 22:52:26 -0400372 if (trackpoint_start_protocol(psmouse, &firmware_id))
Stephen Evanchik541e3162005-08-08 01:26:18 -0500373 return -1;
374
375 if (!set_properties)
376 return 0;
377
Stephen Evanchik541e3162005-08-08 01:26:18 -0500378 if (trackpoint_read(&psmouse->ps2dev, TP_EXT_BTN, &button_info)) {
JJ Dingfb163952012-04-10 00:25:01 -0700379 psmouse_warn(psmouse, "failed to get extended button data\n");
Stephen Evanchik541e3162005-08-08 01:26:18 -0500380 button_info = 0;
381 }
382
Dmitry Torokhov315eb992009-11-16 22:12:21 -0800383 psmouse->private = kzalloc(sizeof(struct trackpoint_data), GFP_KERNEL);
384 if (!psmouse->private)
Davidlohr Bueso6792cbb2010-09-29 18:53:35 -0700385 return -ENOMEM;
Stephen Evanchik541e3162005-08-08 01:26:18 -0500386
387 psmouse->vendor = "IBM";
388 psmouse->name = "TrackPoint";
389
Dmitry Torokhov184dd272006-08-04 22:52:26 -0400390 psmouse->reconnect = trackpoint_reconnect;
Stephen Evanchik541e3162005-08-08 01:26:18 -0500391 psmouse->disconnect = trackpoint_disconnect;
392
Dmitry Torokhov315eb992009-11-16 22:12:21 -0800393 if ((button_info & 0x0f) >= 3)
394 __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
395
396 trackpoint_defaults(psmouse->private);
Shawn Nematbakhsh0c6a6162013-04-15 13:49:34 -0700397
398 error = trackpoint_power_on_reset(&psmouse->ps2dev);
399
400 /* Write defaults to TP only if reset fails. */
401 if (error)
402 trackpoint_sync(psmouse, false);
Stephen Evanchik541e3162005-08-08 01:26:18 -0500403
Jeff Garzik8ff22ea2006-11-02 23:59:30 -0500404 error = sysfs_create_group(&ps2dev->serio->dev.kobj, &trackpoint_attr_group);
405 if (error) {
JJ Dingfb163952012-04-10 00:25:01 -0700406 psmouse_err(psmouse,
407 "failed to create sysfs attributes, error: %d\n",
408 error);
Dmitry Torokhov315eb992009-11-16 22:12:21 -0800409 kfree(psmouse->private);
410 psmouse->private = NULL;
Jeff Garzik8ff22ea2006-11-02 23:59:30 -0500411 return -1;
412 }
Stephen Evanchik541e3162005-08-08 01:26:18 -0500413
JJ Dingfb163952012-04-10 00:25:01 -0700414 psmouse_info(psmouse,
415 "IBM TrackPoint firmware: 0x%02x, buttons: %d/%d\n",
416 firmware_id,
417 (button_info & 0xf0) >> 4, button_info & 0x0f);
Stephen Evanchik541e3162005-08-08 01:26:18 -0500418
419 return 0;
420}
421