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authorAndres Salomon <dilinger@debian.org>2008-09-16 12:30:34 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2008-09-21 18:28:47 -0400
commit68d482214bb0eaac138ace329e72390d6c8d44ff (patch)
tree905c8b976b8b0829b8b49072af04c0025f2627a3 /drivers/input
parent8bf020ee9650899a45295d0c3a0744d4d1bf2801 (diff)
downloadlinux-68d482214bb0eaac138ace329e72390d6c8d44ff.tar.bz2
Input: psmouse - tweak PSMOUSE_DEFINE_ATTR to support raw set callbacks
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>
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/mouse/psmouse-base.c30
-rw-r--r--drivers/input/mouse/psmouse.h7
2 files changed, 23 insertions, 14 deletions
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 3c76f6f9c835..a0671e57dd8b 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -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);
diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
index 48e0112fb264..0f13c1b499ab 100644
--- a/drivers/input/mouse/psmouse.h
+++ b/drivers/input/mouse/psmouse.h
@@ -106,6 +106,7 @@ struct psmouse_attribute {
ssize_t (*show)(struct psmouse *psmouse, void *data, char *buf);
ssize_t (*set)(struct psmouse *psmouse, void *data,
const char *buf, size_t count);
+ int protect;
};
#define to_psmouse_attr(a) container_of((a), struct psmouse_attribute, dattr)
@@ -114,7 +115,7 @@ ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *at
ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count);
-#define PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set) \
+#define __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, _protect) \
static ssize_t _show(struct psmouse *, void *data, char *); \
static ssize_t _set(struct psmouse *, void *data, const char *, size_t); \
static struct psmouse_attribute psmouse_attr_##_name = { \
@@ -129,6 +130,10 @@ static struct psmouse_attribute psmouse_attr_##_name = { \
.data = _data, \
.show = _show, \
.set = _set, \
+ .protect = _protect, \
}
+#define PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set) \
+ __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, 1)
+
#endif /* _PSMOUSE_H */