#include <linux/init.h>
#include <linux/smp_lock.h>
#include <linux/device.h>
-#include <linux/devfs_fs_kernel.h>
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION("Joystick device interfaces");
return 0;
}
- if (value < -32767) return -32767;
- if (value > 32767) return 32767;
-
- return value;
+ return value < -32767 ? -32767 : (value > 32767 ? 32767 : value);
}
static void joydev_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
switch (type) {
case EV_KEY:
- if (code < BTN_MISC || value == 2) return;
+ if (code < BTN_MISC || value == 2)
+ return;
event.type = JS_EVENT_BUTTON;
event.number = joydev->keymap[code - BTN_MISC];
event.value = value;
event.type = JS_EVENT_AXIS;
event.number = joydev->absmap[code];
event.value = joydev_correct(value, joydev->corr + event.number);
- if (event.value == joydev->abs[event.number]) return;
+ if (event.value == joydev->abs[event.number])
+ return;
joydev->abs[event.number] = event.value;
break;
{
int retval;
struct joydev_list *list = file->private_data;
+
retval = fasync_helper(fd, file, on, &list->fasync);
+
return retval < 0 ? retval : 0;
}
if (i >= JOYDEV_MINORS || !joydev_table[i])
return -ENODEV;
- if (!(list = kmalloc(sizeof(struct joydev_list), GFP_KERNEL)))
+ if (!(list = kzalloc(sizeof(struct joydev_list), GFP_KERNEL)))
return -ENOMEM;
- memset(list, 0, sizeof(struct joydev_list));
list->joydev = joydev_table[i];
list_add_tail(&list->node, &joydev_table[i]->list);
return sizeof(struct JS_DATA_TYPE);
}
- if (list->startup == joydev->nabs + joydev->nkey
- && list->head == list->tail && (file->f_flags & O_NONBLOCK))
- return -EAGAIN;
+ if (list->startup == joydev->nabs + joydev->nkey &&
+ list->head == list->tail && (file->f_flags & O_NONBLOCK))
+ return -EAGAIN;
retval = wait_event_interruptible(list->joydev->wait,
- !list->joydev->exist ||
+ !list->joydev->exist ||
list->startup < joydev->nabs + joydev->nkey ||
list->head != list->tail);
static unsigned int joydev_poll(struct file *file, poll_table *wait)
{
struct joydev_list *list = file->private_data;
+
poll_wait(file, &list->joydev->wait, wait);
- return ((list->head != list->tail || list->startup < list->joydev->nabs + list->joydev->nkey) ?
+ return ((list->head != list->tail || list->startup < list->joydev->nabs + list->joydev->nkey) ?
(POLLIN | POLLRDNORM) : 0) | (list->joydev->exist ? 0 : (POLLHUP | POLLERR));
}
case JS_SET_CAL:
return copy_from_user(&joydev->glue.JS_CORR, argp,
sizeof(joydev->glue.JS_CORR)) ? -EFAULT : 0;
+
case JS_GET_CAL:
return copy_to_user(argp, &joydev->glue.JS_CORR,
sizeof(joydev->glue.JS_CORR)) ? -EFAULT : 0;
+
case JS_SET_TIMEOUT:
return get_user(joydev->glue.JS_TIMEOUT, (s32 __user *) argp);
+
case JS_GET_TIMEOUT:
return put_user(joydev->glue.JS_TIMEOUT, (s32 __user *) argp);
case JSIOCGVERSION:
return put_user(JS_VERSION, (__u32 __user *) argp);
+
case JSIOCGAXES:
return put_user(joydev->nabs, (__u8 __user *) argp);
+
case JSIOCGBUTTONS:
return put_user(joydev->nkey, (__u8 __user *) argp);
+
case JSIOCSCORR:
if (copy_from_user(joydev->corr, argp,
sizeof(joydev->corr[0]) * joydev->nabs))
joydev->abs[i] = joydev_correct(dev->abs[j], joydev->corr + i);
}
return 0;
+
case JSIOCGCORR:
return copy_to_user(argp, joydev->corr,
sizeof(joydev->corr[0]) * joydev->nabs) ? -EFAULT : 0;
+
case JSIOCSAXMAP:
if (copy_from_user(joydev->abspam, argp, sizeof(__u8) * (ABS_MAX + 1)))
return -EFAULT;
for (i = 0; i < joydev->nabs; i++) {
- if (joydev->abspam[i] > ABS_MAX) return -EINVAL;
+ if (joydev->abspam[i] > ABS_MAX)
+ return -EINVAL;
joydev->absmap[joydev->abspam[i]] = i;
}
return 0;
+
case JSIOCGAXMAP:
return copy_to_user(argp, joydev->abspam,
sizeof(__u8) * (ABS_MAX + 1)) ? -EFAULT : 0;
+
case JSIOCSBTNMAP:
if (copy_from_user(joydev->keypam, argp, sizeof(__u16) * (KEY_MAX - BTN_MISC + 1)))
return -EFAULT;
for (i = 0; i < joydev->nkey; i++) {
- if (joydev->keypam[i] > KEY_MAX || joydev->keypam[i] < BTN_MISC) return -EINVAL;
+ if (joydev->keypam[i] > KEY_MAX || joydev->keypam[i] < BTN_MISC)
+ return -EINVAL;
joydev->keymap[joydev->keypam[i] - BTN_MISC] = i;
}
return 0;
+
case JSIOCGBTNMAP:
return copy_to_user(argp, joydev->keypam,
sizeof(__u16) * (KEY_MAX - BTN_MISC + 1)) ? -EFAULT : 0;
+
default:
if ((cmd & ~(_IOC_SIZEMASK << _IOC_SIZESHIFT)) == JSIOCGNAME(0)) {
int len;
- if (!dev->name) return 0;
+ if (!dev->name)
+ return 0;
len = strlen(dev->name) + 1;
- if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
- if (copy_to_user(argp, dev->name, len)) return -EFAULT;
+ if (len > _IOC_SIZE(cmd))
+ len = _IOC_SIZE(cmd);
+ if (copy_to_user(argp, dev->name, len))
+ return -EFAULT;
return len;
}
}
struct JS_DATA_SAVE_TYPE_32 ds32;
int err;
- if (!joydev->exist) return -ENODEV;
+ if (!joydev->exist)
+ return -ENODEV;
+
switch(cmd) {
case JS_SET_TIMELIMIT:
err = get_user(tmp32, (s32 __user *) arg);
ds32.JS_SAVE = joydev->glue.JS_SAVE;
ds32.JS_CORR = joydev->glue.JS_CORR;
- err = copy_to_user(argp, &ds32,
- sizeof(ds32)) ? -EFAULT : 0;
+ err = copy_to_user(argp, &ds32, sizeof(ds32)) ? -EFAULT : 0;
break;
default:
struct joydev *joydev = list->joydev;
void __user *argp = (void __user *)arg;
- if (!joydev->exist) return -ENODEV;
+ if (!joydev->exist)
+ return -ENODEV;
switch(cmd) {
case JS_SET_TIMELIMIT:
}
}
-static struct file_operations joydev_fops = {
+static const struct file_operations joydev_fops = {
.owner = THIS_MODULE,
.read = joydev_read,
.write = joydev_write,
.fasync = joydev_fasync,
};
-static struct input_handle *joydev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
+static struct input_handle *joydev_connect(struct input_handler *handler, struct input_dev *dev,
+ const struct input_device_id *id)
{
struct joydev *joydev;
+ struct class_device *cdev;
int i, j, t, minor;
for (minor = 0; minor < JOYDEV_MINORS && joydev_table[minor]; minor++);
return NULL;
}
- if (!(joydev = kmalloc(sizeof(struct joydev), GFP_KERNEL)))
+ if (!(joydev = kzalloc(sizeof(struct joydev), GFP_KERNEL)))
return NULL;
- memset(joydev, 0, sizeof(struct joydev));
INIT_LIST_HEAD(&joydev->list);
init_waitqueue_head(&joydev->wait);
joydev_table[minor] = joydev;
- devfs_mk_cdev(MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + minor),
- S_IFCHR|S_IRUGO|S_IWUSR, "input/js%d", minor);
- class_device_create(input_class,
+ cdev = class_device_create(&input_class, &dev->cdev,
MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + minor),
- dev->dev, "js%d", minor);
+ dev->cdev.dev, joydev->name);
+
+ /* temporary symlink to keep userspace happy */
+ sysfs_create_link(&input_class.subsys.kset.kobj, &cdev->kobj,
+ joydev->name);
return &joydev->handle;
}
struct joydev *joydev = handle->private;
struct joydev_list *list;
- class_device_destroy(input_class, MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + joydev->minor));
- devfs_remove("input/js%d", joydev->minor);
+ sysfs_remove_link(&input_class.subsys.kset.kobj, joydev->name);
+ class_device_destroy(&input_class, MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + joydev->minor));
joydev->exist = 0;
if (joydev->open) {
joydev_free(joydev);
}
-static struct input_device_id joydev_blacklist[] = {
+static const struct input_device_id joydev_blacklist[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
.evbit = { BIT(EV_KEY) },
.keybit = { [LONG(BTN_TOUCH)] = BIT(BTN_TOUCH) },
- }, /* Avoid itouchpads, touchscreens and tablets */
- { }, /* Terminating entry */
+ }, /* Avoid itouchpads, touchscreens and tablets */
+ { } /* Terminating entry */
};
-static struct input_device_id joydev_ids[] = {
+static const struct input_device_id joydev_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_ABSBIT,
.evbit = { BIT(EV_ABS) },
.evbit = { BIT(EV_ABS) },
.absbit = { BIT(ABS_THROTTLE) },
},
- { }, /* Terminating entry */
+ { } /* Terminating entry */
};
MODULE_DEVICE_TABLE(input, joydev_ids);
.minor = JOYDEV_MINOR_BASE,
.name = "joydev",
.id_table = joydev_ids,
- .blacklist = joydev_blacklist,
+ .blacklist = joydev_blacklist,
};
static int __init joydev_init(void)
{
- input_register_handler(&joydev_handler);
- return 0;
+ return input_register_handler(&joydev_handler);
}
static void __exit joydev_exit(void)
git.openpandora.org / pandora-kernel.git / blobdiff