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Input: psmouse - tweak PSMOUSE_DEFINE_ATTR to support raw set callbacks

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We want to support attr->set callbacks that may need psmouse->state to
not be updated, or may want to manually deal w/ enabling and disabling
the device.  To do that, we create __PSMOUSE_DEFINE_ATTR which enables
us to set a 'protect' argument specifying whether or not the set
callback should be protected with psmouse_disable and state setting.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Andres Salomon
2008-09-16 12:30:34 -04:00
committed by Dmitry Torokhov
parent 8bf020ee96
commit 68d482214b
2 changed files with 23 additions and 14 deletions
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30
drivers/input/mouse/psmouse-base.c
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@@ -1401,25 +1401,29 @@ ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *dev
psmouse = serio_get_drvdata(serio);
if (psmouse->state == PSMOUSE_IGNORE) {
retval = -ENODEV;
goto out_unlock;
}
if (attr->protect) {
if (psmouse->state == PSMOUSE_IGNORE) {
retval = -ENODEV;
goto out_unlock;
}
if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
parent = serio_get_drvdata(serio->parent);
psmouse_deactivate(parent);
}
if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
parent = serio_get_drvdata(serio->parent);
psmouse_deactivate(parent);
}
psmouse_deactivate(psmouse);
psmouse_deactivate(psmouse);
}
retval = attr->set(psmouse, attr->data, buf, count);
if (retval != -ENODEV)
psmouse_activate(psmouse);
if (attr->protect) {
if (retval != -ENODEV)
psmouse_activate(psmouse);
if (parent)
psmouse_activate(parent);
if (parent)
psmouse_activate(parent);
}
out_unlock:
mutex_unlock(&psmouse_mutex);