![JJ Ding](/assets/img/avatar_default.png)
Use psmouse_*() macros introduced in commit b5d2170436
.
Signed-off-by: JJ Ding <dgdunix@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
345 lines
9.6 KiB
C
345 lines
9.6 KiB
C
/*
|
|
* Stephen Evanchik <evanchsa@gmail.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 as published by
|
|
* the Free Software Foundation.
|
|
*
|
|
* Trademarks are the property of their respective owners.
|
|
*/
|
|
|
|
#include <linux/slab.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/serio.h>
|
|
#include <linux/module.h>
|
|
#include <linux/input.h>
|
|
#include <linux/libps2.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <asm/uaccess.h>
|
|
#include "psmouse.h"
|
|
#include "trackpoint.h"
|
|
|
|
/*
|
|
* Device IO: read, write and toggle bit
|
|
*/
|
|
static int trackpoint_read(struct ps2dev *ps2dev, unsigned char loc, unsigned char *results)
|
|
{
|
|
if (ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_COMMAND)) ||
|
|
ps2_command(ps2dev, results, MAKE_PS2_CMD(0, 1, loc))) {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int trackpoint_write(struct ps2dev *ps2dev, unsigned char loc, unsigned char val)
|
|
{
|
|
if (ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_COMMAND)) ||
|
|
ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_WRITE_MEM)) ||
|
|
ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, loc)) ||
|
|
ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, val))) {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int trackpoint_toggle_bit(struct ps2dev *ps2dev, unsigned char loc, unsigned char mask)
|
|
{
|
|
/* Bad things will happen if the loc param isn't in this range */
|
|
if (loc < 0x20 || loc >= 0x2F)
|
|
return -1;
|
|
|
|
if (ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_COMMAND)) ||
|
|
ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_TOGGLE)) ||
|
|
ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, loc)) ||
|
|
ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, mask))) {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* Trackpoint-specific attributes
|
|
*/
|
|
struct trackpoint_attr_data {
|
|
size_t field_offset;
|
|
unsigned char command;
|
|
unsigned char mask;
|
|
unsigned char inverted;
|
|
};
|
|
|
|
static ssize_t trackpoint_show_int_attr(struct psmouse *psmouse, void *data, char *buf)
|
|
{
|
|
struct trackpoint_data *tp = psmouse->private;
|
|
struct trackpoint_attr_data *attr = data;
|
|
unsigned char value = *(unsigned char *)((char *)tp + attr->field_offset);
|
|
|
|
if (attr->inverted)
|
|
value = !value;
|
|
|
|
return sprintf(buf, "%u\n", value);
|
|
}
|
|
|
|
static ssize_t trackpoint_set_int_attr(struct psmouse *psmouse, void *data,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct trackpoint_data *tp = psmouse->private;
|
|
struct trackpoint_attr_data *attr = data;
|
|
unsigned char *field = (unsigned char *)((char *)tp + attr->field_offset);
|
|
unsigned char value;
|
|
int err;
|
|
|
|
err = kstrtou8(buf, 10, &value);
|
|
if (err)
|
|
return err;
|
|
|
|
*field = value;
|
|
trackpoint_write(&psmouse->ps2dev, attr->command, value);
|
|
|
|
return count;
|
|
}
|
|
|
|
#define TRACKPOINT_INT_ATTR(_name, _command) \
|
|
static struct trackpoint_attr_data trackpoint_attr_##_name = { \
|
|
.field_offset = offsetof(struct trackpoint_data, _name), \
|
|
.command = _command, \
|
|
}; \
|
|
PSMOUSE_DEFINE_ATTR(_name, S_IWUSR | S_IRUGO, \
|
|
&trackpoint_attr_##_name, \
|
|
trackpoint_show_int_attr, trackpoint_set_int_attr)
|
|
|
|
static ssize_t trackpoint_set_bit_attr(struct psmouse *psmouse, void *data,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct trackpoint_data *tp = psmouse->private;
|
|
struct trackpoint_attr_data *attr = data;
|
|
unsigned char *field = (unsigned char *)((char *)tp + attr->field_offset);
|
|
unsigned int value;
|
|
int err;
|
|
|
|
err = kstrtouint(buf, 10, &value);
|
|
if (err)
|
|
return err;
|
|
|
|
if (value > 1)
|
|
return -EINVAL;
|
|
|
|
if (attr->inverted)
|
|
value = !value;
|
|
|
|
if (*field != value) {
|
|
*field = value;
|
|
trackpoint_toggle_bit(&psmouse->ps2dev, attr->command, attr->mask);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
|
|
#define TRACKPOINT_BIT_ATTR(_name, _command, _mask, _inv) \
|
|
static struct trackpoint_attr_data trackpoint_attr_##_name = { \
|
|
.field_offset = offsetof(struct trackpoint_data, _name), \
|
|
.command = _command, \
|
|
.mask = _mask, \
|
|
.inverted = _inv, \
|
|
}; \
|
|
PSMOUSE_DEFINE_ATTR(_name, S_IWUSR | S_IRUGO, \
|
|
&trackpoint_attr_##_name, \
|
|
trackpoint_show_int_attr, trackpoint_set_bit_attr)
|
|
|
|
TRACKPOINT_INT_ATTR(sensitivity, TP_SENS);
|
|
TRACKPOINT_INT_ATTR(speed, TP_SPEED);
|
|
TRACKPOINT_INT_ATTR(inertia, TP_INERTIA);
|
|
TRACKPOINT_INT_ATTR(reach, TP_REACH);
|
|
TRACKPOINT_INT_ATTR(draghys, TP_DRAGHYS);
|
|
TRACKPOINT_INT_ATTR(mindrag, TP_MINDRAG);
|
|
TRACKPOINT_INT_ATTR(thresh, TP_THRESH);
|
|
TRACKPOINT_INT_ATTR(upthresh, TP_UP_THRESH);
|
|
TRACKPOINT_INT_ATTR(ztime, TP_Z_TIME);
|
|
TRACKPOINT_INT_ATTR(jenks, TP_JENKS_CURV);
|
|
|
|
TRACKPOINT_BIT_ATTR(press_to_select, TP_TOGGLE_PTSON, TP_MASK_PTSON, 0);
|
|
TRACKPOINT_BIT_ATTR(skipback, TP_TOGGLE_SKIPBACK, TP_MASK_SKIPBACK, 0);
|
|
TRACKPOINT_BIT_ATTR(ext_dev, TP_TOGGLE_EXT_DEV, TP_MASK_EXT_DEV, 1);
|
|
|
|
static struct attribute *trackpoint_attrs[] = {
|
|
&psmouse_attr_sensitivity.dattr.attr,
|
|
&psmouse_attr_speed.dattr.attr,
|
|
&psmouse_attr_inertia.dattr.attr,
|
|
&psmouse_attr_reach.dattr.attr,
|
|
&psmouse_attr_draghys.dattr.attr,
|
|
&psmouse_attr_mindrag.dattr.attr,
|
|
&psmouse_attr_thresh.dattr.attr,
|
|
&psmouse_attr_upthresh.dattr.attr,
|
|
&psmouse_attr_ztime.dattr.attr,
|
|
&psmouse_attr_jenks.dattr.attr,
|
|
&psmouse_attr_press_to_select.dattr.attr,
|
|
&psmouse_attr_skipback.dattr.attr,
|
|
&psmouse_attr_ext_dev.dattr.attr,
|
|
NULL
|
|
};
|
|
|
|
static struct attribute_group trackpoint_attr_group = {
|
|
.attrs = trackpoint_attrs,
|
|
};
|
|
|
|
static int trackpoint_start_protocol(struct psmouse *psmouse, unsigned char *firmware_id)
|
|
{
|
|
unsigned char param[2] = { 0 };
|
|
|
|
if (ps2_command(&psmouse->ps2dev, param, MAKE_PS2_CMD(0, 2, TP_READ_ID)))
|
|
return -1;
|
|
|
|
if (param[0] != TP_MAGIC_IDENT)
|
|
return -1;
|
|
|
|
if (firmware_id)
|
|
*firmware_id = param[1];
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int trackpoint_sync(struct psmouse *psmouse)
|
|
{
|
|
struct trackpoint_data *tp = psmouse->private;
|
|
unsigned char toggle;
|
|
|
|
/* Disable features that may make device unusable with this driver */
|
|
trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_TWOHAND, &toggle);
|
|
if (toggle & TP_MASK_TWOHAND)
|
|
trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_TWOHAND, TP_MASK_TWOHAND);
|
|
|
|
trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_SOURCE_TAG, &toggle);
|
|
if (toggle & TP_MASK_SOURCE_TAG)
|
|
trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_SOURCE_TAG, TP_MASK_SOURCE_TAG);
|
|
|
|
trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_MB, &toggle);
|
|
if (toggle & TP_MASK_MB)
|
|
trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_MB, TP_MASK_MB);
|
|
|
|
/* Push the config to the device */
|
|
trackpoint_write(&psmouse->ps2dev, TP_SENS, tp->sensitivity);
|
|
trackpoint_write(&psmouse->ps2dev, TP_INERTIA, tp->inertia);
|
|
trackpoint_write(&psmouse->ps2dev, TP_SPEED, tp->speed);
|
|
|
|
trackpoint_write(&psmouse->ps2dev, TP_REACH, tp->reach);
|
|
trackpoint_write(&psmouse->ps2dev, TP_DRAGHYS, tp->draghys);
|
|
trackpoint_write(&psmouse->ps2dev, TP_MINDRAG, tp->mindrag);
|
|
|
|
trackpoint_write(&psmouse->ps2dev, TP_THRESH, tp->thresh);
|
|
trackpoint_write(&psmouse->ps2dev, TP_UP_THRESH, tp->upthresh);
|
|
|
|
trackpoint_write(&psmouse->ps2dev, TP_Z_TIME, tp->ztime);
|
|
trackpoint_write(&psmouse->ps2dev, TP_JENKS_CURV, tp->jenks);
|
|
|
|
trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_PTSON, &toggle);
|
|
if (((toggle & TP_MASK_PTSON) == TP_MASK_PTSON) != tp->press_to_select)
|
|
trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_PTSON, TP_MASK_PTSON);
|
|
|
|
trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_SKIPBACK, &toggle);
|
|
if (((toggle & TP_MASK_SKIPBACK) == TP_MASK_SKIPBACK) != tp->skipback)
|
|
trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_SKIPBACK, TP_MASK_SKIPBACK);
|
|
|
|
trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_EXT_DEV, &toggle);
|
|
if (((toggle & TP_MASK_EXT_DEV) == TP_MASK_EXT_DEV) != tp->ext_dev)
|
|
trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_EXT_DEV, TP_MASK_EXT_DEV);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void trackpoint_defaults(struct trackpoint_data *tp)
|
|
{
|
|
tp->press_to_select = TP_DEF_PTSON;
|
|
tp->sensitivity = TP_DEF_SENS;
|
|
tp->speed = TP_DEF_SPEED;
|
|
tp->reach = TP_DEF_REACH;
|
|
|
|
tp->draghys = TP_DEF_DRAGHYS;
|
|
tp->mindrag = TP_DEF_MINDRAG;
|
|
|
|
tp->thresh = TP_DEF_THRESH;
|
|
tp->upthresh = TP_DEF_UP_THRESH;
|
|
|
|
tp->ztime = TP_DEF_Z_TIME;
|
|
tp->jenks = TP_DEF_JENKS_CURV;
|
|
|
|
tp->inertia = TP_DEF_INERTIA;
|
|
tp->skipback = TP_DEF_SKIPBACK;
|
|
tp->ext_dev = TP_DEF_EXT_DEV;
|
|
}
|
|
|
|
static void trackpoint_disconnect(struct psmouse *psmouse)
|
|
{
|
|
sysfs_remove_group(&psmouse->ps2dev.serio->dev.kobj, &trackpoint_attr_group);
|
|
|
|
kfree(psmouse->private);
|
|
psmouse->private = NULL;
|
|
}
|
|
|
|
static int trackpoint_reconnect(struct psmouse *psmouse)
|
|
{
|
|
if (trackpoint_start_protocol(psmouse, NULL))
|
|
return -1;
|
|
|
|
if (trackpoint_sync(psmouse))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int trackpoint_detect(struct psmouse *psmouse, bool set_properties)
|
|
{
|
|
struct ps2dev *ps2dev = &psmouse->ps2dev;
|
|
unsigned char firmware_id;
|
|
unsigned char button_info;
|
|
int error;
|
|
|
|
if (trackpoint_start_protocol(psmouse, &firmware_id))
|
|
return -1;
|
|
|
|
if (!set_properties)
|
|
return 0;
|
|
|
|
if (trackpoint_read(&psmouse->ps2dev, TP_EXT_BTN, &button_info)) {
|
|
psmouse_warn(psmouse, "failed to get extended button data\n");
|
|
button_info = 0;
|
|
}
|
|
|
|
psmouse->private = kzalloc(sizeof(struct trackpoint_data), GFP_KERNEL);
|
|
if (!psmouse->private)
|
|
return -ENOMEM;
|
|
|
|
psmouse->vendor = "IBM";
|
|
psmouse->name = "TrackPoint";
|
|
|
|
psmouse->reconnect = trackpoint_reconnect;
|
|
psmouse->disconnect = trackpoint_disconnect;
|
|
|
|
if ((button_info & 0x0f) >= 3)
|
|
__set_bit(BTN_MIDDLE, psmouse->dev->keybit);
|
|
|
|
trackpoint_defaults(psmouse->private);
|
|
trackpoint_sync(psmouse);
|
|
|
|
error = sysfs_create_group(&ps2dev->serio->dev.kobj, &trackpoint_attr_group);
|
|
if (error) {
|
|
psmouse_err(psmouse,
|
|
"failed to create sysfs attributes, error: %d\n",
|
|
error);
|
|
kfree(psmouse->private);
|
|
psmouse->private = NULL;
|
|
return -1;
|
|
}
|
|
|
|
psmouse_info(psmouse,
|
|
"IBM TrackPoint firmware: 0x%02x, buttons: %d/%d\n",
|
|
firmware_id,
|
|
(button_info & 0xf0) >> 4, button_info & 0x0f);
|
|
|
|
return 0;
|
|
}
|
|
|