Input: This patch implements compat_ioctl for joydev.
I've tested it with a Logitech WingMan Rumblepad on an x86-64
machine, and on an ia32 machine to make sure I didn't break
anything.
Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index 627d343..816a585 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -285,48 +285,33 @@
(POLLIN | POLLRDNORM) : 0) | (list->joydev->exist ? 0 : (POLLHUP | POLLERR));
}
-static int joydev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static int joydev_ioctl_common(struct joydev *joydev, unsigned int cmd, void __user *argp)
{
- struct joydev_list *list = file->private_data;
- struct joydev *joydev = list->joydev;
struct input_dev *dev = joydev->handle.dev;
- void __user *argp = (void __user *)arg;
int i, j;
- if (!joydev->exist) return -ENODEV;
-
switch (cmd) {
case JS_SET_CAL:
return copy_from_user(&joydev->glue.JS_CORR, argp,
- sizeof(struct JS_DATA_TYPE)) ? -EFAULT : 0;
+ sizeof(joydev->glue.JS_CORR)) ? -EFAULT : 0;
case JS_GET_CAL:
return copy_to_user(argp, &joydev->glue.JS_CORR,
- sizeof(struct JS_DATA_TYPE)) ? -EFAULT : 0;
+ sizeof(joydev->glue.JS_CORR)) ? -EFAULT : 0;
case JS_SET_TIMEOUT:
- return get_user(joydev->glue.JS_TIMEOUT, (int __user *) arg);
+ return get_user(joydev->glue.JS_TIMEOUT, (s32 __user *) argp);
case JS_GET_TIMEOUT:
- return put_user(joydev->glue.JS_TIMEOUT, (int __user *) arg);
- case JS_SET_TIMELIMIT:
- return get_user(joydev->glue.JS_TIMELIMIT, (long __user *) arg);
- case JS_GET_TIMELIMIT:
- return put_user(joydev->glue.JS_TIMELIMIT, (long __user *) arg);
- case JS_SET_ALL:
- return copy_from_user(&joydev->glue, argp,
- sizeof(struct JS_DATA_SAVE_TYPE)) ? -EFAULT : 0;
- case JS_GET_ALL:
- return copy_to_user(argp, &joydev->glue,
- sizeof(struct JS_DATA_SAVE_TYPE)) ? -EFAULT : 0;
+ return put_user(joydev->glue.JS_TIMEOUT, (s32 __user *) argp);
case JSIOCGVERSION:
- return put_user(JS_VERSION, (__u32 __user *) arg);
+ return put_user(JS_VERSION, (__u32 __user *) argp);
case JSIOCGAXES:
- return put_user(joydev->nabs, (__u8 __user *) arg);
+ return put_user(joydev->nabs, (__u8 __user *) argp);
case JSIOCGBUTTONS:
- return put_user(joydev->nkey, (__u8 __user *) arg);
+ return put_user(joydev->nkey, (__u8 __user *) argp);
case JSIOCSCORR:
if (copy_from_user(joydev->corr, argp,
- sizeof(struct js_corr) * joydev->nabs))
+ sizeof(joydev->corr[0]) * joydev->nabs))
return -EFAULT;
for (i = 0; i < joydev->nabs; i++) {
j = joydev->abspam[i];
@@ -335,7 +320,7 @@
return 0;
case JSIOCGCORR:
return copy_to_user(argp, joydev->corr,
- sizeof(struct js_corr) * joydev->nabs) ? -EFAULT : 0;
+ sizeof(joydev->corr[0]) * joydev->nabs) ? -EFAULT : 0;
case JSIOCSAXMAP:
if (copy_from_user(joydev->abspam, argp, sizeof(__u8) * (ABS_MAX + 1)))
return -EFAULT;
@@ -371,6 +356,84 @@
return -EINVAL;
}
+#ifdef CONFIG_COMPAT
+static long joydev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ struct joydev_list *list = file->private_data;
+ struct joydev *joydev = list->joydev;
+ void __user *argp = (void __user *)arg;
+ s32 tmp32;
+ struct JS_DATA_SAVE_TYPE_32 ds32;
+ int err;
+
+ if (!joydev->exist) return -ENODEV;
+ switch(cmd) {
+ case JS_SET_TIMELIMIT:
+ err = get_user(tmp32, (s32 __user *) arg);
+ if (err == 0)
+ joydev->glue.JS_TIMELIMIT = tmp32;
+ break;
+ case JS_GET_TIMELIMIT:
+ tmp32 = joydev->glue.JS_TIMELIMIT;
+ err = put_user(tmp32, (s32 __user *) arg);
+ break;
+
+ case JS_SET_ALL:
+ err = copy_from_user(&ds32, argp,
+ sizeof(ds32)) ? -EFAULT : 0;
+ if (err == 0) {
+ joydev->glue.JS_TIMEOUT = ds32.JS_TIMEOUT;
+ joydev->glue.BUSY = ds32.BUSY;
+ joydev->glue.JS_EXPIRETIME = ds32.JS_EXPIRETIME;
+ joydev->glue.JS_TIMELIMIT = ds32.JS_TIMELIMIT;
+ joydev->glue.JS_SAVE = ds32.JS_SAVE;
+ joydev->glue.JS_CORR = ds32.JS_CORR;
+ }
+ break;
+
+ case JS_GET_ALL:
+ ds32.JS_TIMEOUT = joydev->glue.JS_TIMEOUT;
+ ds32.BUSY = joydev->glue.BUSY;
+ ds32.JS_EXPIRETIME = joydev->glue.JS_EXPIRETIME;
+ ds32.JS_TIMELIMIT = joydev->glue.JS_TIMELIMIT;
+ ds32.JS_SAVE = joydev->glue.JS_SAVE;
+ ds32.JS_CORR = joydev->glue.JS_CORR;
+
+ err = copy_to_user(argp, &ds32,
+ sizeof(ds32)) ? -EFAULT : 0;
+ break;
+
+ default:
+ err = joydev_ioctl_common(joydev, cmd, argp);
+ }
+ return err;
+}
+#endif /* CONFIG_COMPAT */
+
+static int joydev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+ struct joydev_list *list = file->private_data;
+ struct joydev *joydev = list->joydev;
+ void __user *argp = (void __user *)arg;
+
+ if (!joydev->exist) return -ENODEV;
+
+ switch(cmd) {
+ case JS_SET_TIMELIMIT:
+ return get_user(joydev->glue.JS_TIMELIMIT, (long __user *) arg);
+ case JS_GET_TIMELIMIT:
+ return put_user(joydev->glue.JS_TIMELIMIT, (long __user *) arg);
+ case JS_SET_ALL:
+ return copy_from_user(&joydev->glue, argp,
+ sizeof(joydev->glue)) ? -EFAULT : 0;
+ case JS_GET_ALL:
+ return copy_to_user(argp, &joydev->glue,
+ sizeof(joydev->glue)) ? -EFAULT : 0;
+ default:
+ return joydev_ioctl_common(joydev, cmd, argp);
+ }
+}
+
static struct file_operations joydev_fops = {
.owner = THIS_MODULE,
.read = joydev_read,
@@ -379,6 +442,9 @@
.open = joydev_open,
.release = joydev_release,
.ioctl = joydev_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = joydev_compat_ioctl,
+#endif
.fasync = joydev_fasync,
};