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Subject[GIT PATCH 3/6] trackpoint: enable devices connected to external port
Input: trackpoint - enable devices connected to external port

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
drivers/input/mouse/trackpoint.c | 20 ++++++++++++++------
drivers/input/mouse/trackpoint.h | 4 ++--
2 files changed, 16 insertions(+), 8 deletions(-)
Index: work/drivers/input/mouse/trackpoint.c
===================================================================
--- work.orig/drivers/input/mouse/trackpoint.c
+++ work/drivers/input/mouse/trackpoint.c
@@ -68,15 +68,19 @@ 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 *field = (unsigned char *)((char *)tp + attr->field_offset);
+ unsigned char value = *(unsigned char *)((char *)tp + attr->field_offset);
+
+ if (attr->inverted)
+ value = !value;

- return sprintf(buf, "%u\n", *field);
+ return sprintf(buf, "%u\n", value);
}

static ssize_t trackpoint_set_int_attr(struct psmouse *psmouse, void *data,
@@ -120,6 +124,9 @@ static ssize_t trackpoint_set_bit_attr(s
if (*rest || value > 1)
return -EINVAL;

+ if (attr->inverted)
+ value = !value;
+
if (*field != value) {
*field = value;
trackpoint_toggle_bit(&psmouse->ps2dev, attr->command, attr->mask);
@@ -129,11 +136,12 @@ static ssize_t trackpoint_set_bit_attr(s
}


-#define TRACKPOINT_BIT_ATTR(_name, _command, _mask) \
+#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, \
@@ -150,9 +158,9 @@ TRACKPOINT_INT_ATTR(upthresh, TP_UP_THRE
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);
-TRACKPOINT_BIT_ATTR(skipback, TP_TOGGLE_SKIPBACK, TP_MASK_SKIPBACK);
-TRACKPOINT_BIT_ATTR(ext_dev, TP_TOGGLE_EXT_DEV, TP_MASK_EXT_DEV);
+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,
Index: work/drivers/input/mouse/trackpoint.h
===================================================================
--- work.orig/drivers/input/mouse/trackpoint.h
+++ work/drivers/input/mouse/trackpoint.h
@@ -78,7 +78,7 @@

#define TP_TOGGLE_MB 0x23 /* Disable/Enable Middle Button */
#define TP_MASK_MB 0x01
-#define TP_TOGGLE_EXT_DEV 0x23 /* Toggle external device */
+#define TP_TOGGLE_EXT_DEV 0x23 /* Disable external device */
#define TP_MASK_EXT_DEV 0x02
#define TP_TOGGLE_DRIFT 0x23 /* Drift Correction */
#define TP_MASK_DRIFT 0x80
@@ -125,7 +125,7 @@
#define TP_DEF_MB 0x00
#define TP_DEF_PTSON 0x00
#define TP_DEF_SKIPBACK 0x00
-#define TP_DEF_EXT_DEV 0x01
+#define TP_DEF_EXT_DEV 0x00 /* 0 means enabled */

#define MAKE_PS2_CMD(params, results, cmd) ((params<<12) | (results<<8) | (cmd))

-
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