Input: trackpoint - enable devices connected to external port
Dmitry Torokhov [Wed, 15 Feb 2006 05:49:09 +0000 (00:49 -0500)]
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/mouse/trackpoint.c
drivers/input/mouse/trackpoint.h

index b4898d8..6d9ec9a 100644 (file)
@@ -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(struct psmouse *psmouse, void *data,
        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(struct psmouse *psmouse, void *data,
 }
 
 
-#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_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);
-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 9857d8b..050298b 100644 (file)
@@ -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
 #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))