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Input: rework psmouse attributes to reduce module size

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Rearrange attribute code to use generic show and set handlers
instead of replicating them for every attribute; switch to
using attribute_group instead of creating all attributes
manually. All this saves about 4K.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov
2005-09-04 01:40:20 -05:00
parent 15c42e5a1f
commit cfe9e88866
4 changed files with 198 additions and 161 deletions
Download Patch File Download Diff File Expand all files Collapse all files

117
drivers/input/mouse/psmouse-base.c
View File

@@ -58,10 +58,30 @@ static unsigned int psmouse_resetafter;
module_param_named(resetafter, psmouse_resetafter, uint, 0644);
MODULE_PARM_DESC(resetafter, "Reset device after so many bad packets (0 = never).");
PSMOUSE_DEFINE_ATTR(protocol);
PSMOUSE_DEFINE_ATTR(rate);
PSMOUSE_DEFINE_ATTR(resolution);
PSMOUSE_DEFINE_ATTR(resetafter);
PSMOUSE_DEFINE_ATTR(protocol, S_IWUSR | S_IRUGO,
NULL,
psmouse_attr_show_protocol, psmouse_attr_set_protocol);
PSMOUSE_DEFINE_ATTR(rate, S_IWUSR | S_IRUGO,
(void *) offsetof(struct psmouse, rate),
psmouse_show_int_attr, psmouse_attr_set_rate);
PSMOUSE_DEFINE_ATTR(resolution, S_IWUSR | S_IRUGO,
(void *) offsetof(struct psmouse, resolution),
psmouse_show_int_attr, psmouse_attr_set_resolution);
PSMOUSE_DEFINE_ATTR(resetafter, S_IWUSR | S_IRUGO,
(void *) offsetof(struct psmouse, resetafter),
psmouse_show_int_attr, psmouse_set_int_attr);
static struct attribute *psmouse_attributes[] = {
&psmouse_attr_protocol.dattr.attr,
&psmouse_attr_rate.dattr.attr,
&psmouse_attr_resolution.dattr.attr,
&psmouse_attr_resetafter.dattr.attr,
NULL
};
static struct attribute_group psmouse_attribute_group = {
.attrs = psmouse_attributes,
};
__obsolete_setup("psmouse_noext");
__obsolete_setup("psmouse_resolution=");
@@ -800,10 +820,7 @@ static void psmouse_disconnect(struct serio *serio)
psmouse = serio_get_drvdata(serio);
device_remove_file(&serio->dev, &psmouse_attr_protocol);
device_remove_file(&serio->dev, &psmouse_attr_rate);
device_remove_file(&serio->dev, &psmouse_attr_resolution);
device_remove_file(&serio->dev, &psmouse_attr_resetafter);
sysfs_remove_group(&serio->dev.kobj, &psmouse_attribute_group);
down(&psmouse_sem);
@@ -940,10 +957,7 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
if (parent && parent->pt_activate)
parent->pt_activate(parent);
device_create_file(&serio->dev, &psmouse_attr_protocol);
device_create_file(&serio->dev, &psmouse_attr_rate);
device_create_file(&serio->dev, &psmouse_attr_resolution);
device_create_file(&serio->dev, &psmouse_attr_resetafter);
sysfs_create_group(&serio->dev.kobj, &psmouse_attribute_group);
psmouse_activate(psmouse);
@@ -1040,10 +1054,12 @@ static struct serio_driver psmouse_drv = {
.cleanup = psmouse_cleanup,
};
ssize_t psmouse_attr_show_helper(struct device *dev, char *buf,
ssize_t (*handler)(struct psmouse *, char *))
ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct serio *serio = to_serio_port(dev);
struct psmouse_attribute *attr = to_psmouse_attr(devattr);
struct psmouse *psmouse;
int retval;
retval = serio_pin_driver(serio);
@@ -1055,19 +1071,21 @@ ssize_t psmouse_attr_show_helper(struct device *dev, char *buf,
goto out;
}
retval = handler(serio_get_drvdata(serio), buf);
psmouse = serio_get_drvdata(serio);
retval = attr->show(psmouse, attr->data, buf);
out:
serio_unpin_driver(serio);
return retval;
}
ssize_t psmouse_attr_set_helper(struct device *dev, const char *buf, size_t count,
ssize_t (*handler)(struct psmouse *, const char *, size_t))
ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
struct serio *serio = to_serio_port(dev);
struct psmouse *psmouse = serio_get_drvdata(serio);
struct psmouse *parent = NULL;
struct psmouse_attribute *attr = to_psmouse_attr(devattr);
struct psmouse *psmouse, *parent = NULL;
int retval;
retval = serio_pin_driver(serio);
@@ -1083,6 +1101,8 @@ ssize_t psmouse_attr_set_helper(struct device *dev, const char *buf, size_t coun
if (retval)
goto out_unpin;
psmouse = serio_get_drvdata(serio);
if (psmouse->state == PSMOUSE_IGNORE) {
retval = -ENODEV;
goto out_up;
@@ -1095,7 +1115,7 @@ ssize_t psmouse_attr_set_helper(struct device *dev, const char *buf, size_t coun
psmouse_deactivate(psmouse);
retval = handler(psmouse, buf, count);
retval = attr->set(psmouse, attr->data, buf, count);
if (retval != -ENODEV)
psmouse_activate(psmouse);
@@ -1110,12 +1130,34 @@ ssize_t psmouse_attr_set_helper(struct device *dev, const char *buf, size_t coun
return retval;
}
static ssize_t psmouse_attr_show_protocol(struct psmouse *psmouse, char *buf)
static ssize_t psmouse_show_int_attr(struct psmouse *psmouse, void *offset, char *buf)
{
unsigned long *field = (unsigned long *)((char *)psmouse + (size_t)offset);
return sprintf(buf, "%lu\n", *field);
}
static ssize_t psmouse_set_int_attr(struct psmouse *psmouse, void *offset, const char *buf, size_t count)
{
unsigned long *field = (unsigned long *)((char *)psmouse + (size_t)offset);
unsigned long value;
char *rest;
value = simple_strtoul(buf, &rest, 10);
if (*rest)
return -EINVAL;
*field = value;
return count;
}
static ssize_t psmouse_attr_show_protocol(struct psmouse *psmouse, void *data, char *buf)
{
return sprintf(buf, "%s\n", psmouse_protocol_by_type(psmouse->type)->name);
}
static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, const char *buf, size_t count)
static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, const char *buf, size_t count)
{
struct serio *serio = psmouse->ps2dev.serio;
struct psmouse *parent = NULL;
@@ -1179,12 +1221,7 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, const char *bu
return count;
}
static ssize_t psmouse_attr_show_rate(struct psmouse *psmouse, char *buf)
{
return sprintf(buf, "%d\n", psmouse->rate);
}
static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, const char *buf, size_t count)
static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, void *data, const char *buf, size_t count)
{
unsigned long value;
char *rest;
@@ -1197,12 +1234,7 @@ static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, const char *buf, s
return count;
}
static ssize_t psmouse_attr_show_resolution(struct psmouse *psmouse, char *buf)
{
return sprintf(buf, "%d\n", psmouse->resolution);
}
static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, const char *buf, size_t count)
static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, void *data, const char *buf, size_t count)
{
unsigned long value;
char *rest;
@@ -1215,23 +1247,6 @@ static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, const char *
return count;
}
static ssize_t psmouse_attr_show_resetafter(struct psmouse *psmouse, char *buf)
{
return sprintf(buf, "%d\n", psmouse->resetafter);
}
static ssize_t psmouse_attr_set_resetafter(struct psmouse *psmouse, const char *buf, size_t count)
{
unsigned long value;
char *rest;
value = simple_strtoul(buf, &rest, 10);
if (*rest)
return -EINVAL;
psmouse->resetafter = value;
return count;
}
static int psmouse_set_maxproto(const char *val, struct kernel_param *kp)
{