Lines Matching refs:joydev
39 struct joydev {
68 struct joydev *joydev;
72 static struct joydev *joydev_table[JOYDEV_MINORS];
98 struct joydev *joydev = client->joydev;
107 if (client->startup == joydev->nabs + joydev->nkey) {
122 struct joydev *joydev = handle->private;
132 event.number = joydev->keymap[code - BTN_MISC];
138 event.number = joydev->absmap[code];
140 &joydev->corr[event.number]);
141 if (event.value == joydev->abs[event.number])
143 joydev->abs[event.number] = event.value;
153 list_for_each_entry_rcu(client, &joydev->client_list, node)
157 wake_up_interruptible(&joydev->wait);
169 struct joydev *joydev = container_of(dev, struct joydev, dev);
171 input_put_device(joydev->handle.dev);
172 kfree(joydev);
175 static void joydev_attach_client(struct joydev *joydev,
178 spin_lock(&joydev->client_lock);
179 list_add_tail_rcu(&client->node, &joydev->client_list);
180 spin_unlock(&joydev->client_lock);
184 static void joydev_detach_client(struct joydev *joydev,
187 spin_lock(&joydev->client_lock);
189 spin_unlock(&joydev->client_lock);
193 static int joydev_open_device(struct joydev *joydev)
197 retval = mutex_lock_interruptible(&joydev->mutex);
201 if (!joydev->exist)
203 else if (!joydev->open++) {
204 retval = input_open_device(&joydev->handle);
206 joydev->open--;
209 mutex_unlock(&joydev->mutex);
213 static void joydev_close_device(struct joydev *joydev)
215 mutex_lock(&joydev->mutex);
217 if (joydev->exist && !--joydev->open)
218 input_close_device(&joydev->handle);
220 mutex_unlock(&joydev->mutex);
227 static void joydev_hangup(struct joydev *joydev)
231 spin_lock(&joydev->client_lock);
232 list_for_each_entry(client, &joydev->client_list, node)
234 spin_unlock(&joydev->client_lock);
236 wake_up_interruptible(&joydev->wait);
242 struct joydev *joydev = client->joydev;
244 joydev_detach_client(joydev, client);
247 joydev_close_device(joydev);
248 put_device(&joydev->dev);
256 struct joydev *joydev;
266 joydev = joydev_table[i];
267 if (joydev)
268 get_device(&joydev->dev);
271 if (!joydev)
281 client->joydev = joydev;
282 joydev_attach_client(joydev, client);
284 error = joydev_open_device(joydev);
294 joydev_detach_client(joydev, client);
297 put_device(&joydev->dev);
305 struct joydev *joydev = client->joydev;
310 have_event = client->startup < joydev->nabs + joydev->nkey;
315 if (client->startup < joydev->nkey) {
318 event->value = !!test_bit(joydev->keypam[event->number],
322 event->number = client->startup - joydev->nkey;
323 event->value = joydev->abs[event->number];
358 struct joydev *joydev = client->joydev;
367 for (data.buttons = i = 0; i < 32 && i < joydev->nkey; i++)
369 test_bit(joydev->keypam[i], input->key) ? (1 << i) : 0;
370 data.x = (joydev->abs[0] / 256 + 128) >> joydev->glue.JS_CORR.x;
371 data.y = (joydev->abs[1] / 256 + 128) >> joydev->glue.JS_CORR.y;
391 struct joydev *joydev = client->joydev;
393 return client->startup < joydev->nabs + joydev->nkey ||
401 struct joydev *joydev = client->joydev;
402 struct input_dev *input = joydev->handle.dev;
406 if (!joydev->exist)
418 retval = wait_event_interruptible(joydev->wait,
419 !joydev->exist || joydev_data_pending(client));
423 if (!joydev->exist)
451 struct joydev *joydev = client->joydev;
453 poll_wait(file, &joydev->wait, wait);
455 (joydev->exist ? 0 : (POLLHUP | POLLERR));
458 static int joydev_handle_JSIOCSAXMAP(struct joydev *joydev,
465 len = min(len, sizeof(joydev->abspam));
477 for (i = 0; i < joydev->nabs; i++) {
484 memcpy(joydev->abspam, abspam, len);
486 for (i = 0; i < joydev->nabs; i++)
487 joydev->absmap[joydev->abspam[i]] = i;
494 static int joydev_handle_JSIOCSBTNMAP(struct joydev *joydev,
501 len = min(len, sizeof(joydev->keypam));
513 for (i = 0; i < joydev->nkey; i++) {
520 memcpy(joydev->keypam, keypam, len);
522 for (i = 0; i < joydev->nkey; i++)
523 joydev->keymap[keypam[i] - BTN_MISC] = i;
531 static int joydev_ioctl_common(struct joydev *joydev,
534 struct input_dev *dev = joydev->handle.dev;
543 return copy_from_user(&joydev->glue.JS_CORR, argp,
544 sizeof(joydev->glue.JS_CORR)) ? -EFAULT : 0;
547 return copy_to_user(argp, &joydev->glue.JS_CORR,
548 sizeof(joydev->glue.JS_CORR)) ? -EFAULT : 0;
551 return get_user(joydev->glue.JS_TIMEOUT, (s32 __user *) argp);
554 return put_user(joydev->glue.JS_TIMEOUT, (s32 __user *) argp);
560 return put_user(joydev->nabs, (__u8 __user *) argp);
563 return put_user(joydev->nkey, (__u8 __user *) argp);
566 if (copy_from_user(joydev->corr, argp,
567 sizeof(joydev->corr[0]) * joydev->nabs))
570 for (i = 0; i < joydev->nabs; i++) {
571 int val = input_abs_get_val(dev, joydev->abspam[i]);
572 joydev->abs[i] = joydev_correct(val, &joydev->corr[i]);
577 return copy_to_user(argp, joydev->corr,
578 sizeof(joydev->corr[0]) * joydev->nabs) ? -EFAULT : 0;
590 return joydev_handle_JSIOCSAXMAP(joydev, argp, _IOC_SIZE(cmd));
593 len = min_t(size_t, _IOC_SIZE(cmd), sizeof(joydev->abspam));
594 return copy_to_user(argp, joydev->abspam, len) ? -EFAULT : len;
597 return joydev_handle_JSIOCSBTNMAP(joydev, argp, _IOC_SIZE(cmd));
600 len = min_t(size_t, _IOC_SIZE(cmd), sizeof(joydev->keypam));
601 return copy_to_user(argp, joydev->keypam, len) ? -EFAULT : len;
620 struct joydev *joydev = client->joydev;
626 retval = mutex_lock_interruptible(&joydev->mutex);
630 if (!joydev->exist) {
640 joydev->glue.JS_TIMELIMIT = tmp32;
644 tmp32 = joydev->glue.JS_TIMELIMIT;
652 joydev->glue.JS_TIMEOUT = ds32.JS_TIMEOUT;
653 joydev->glue.BUSY = ds32.BUSY;
654 joydev->glue.JS_EXPIRETIME = ds32.JS_EXPIRETIME;
655 joydev->glue.JS_TIMELIMIT = ds32.JS_TIMELIMIT;
656 joydev->glue.JS_SAVE = ds32.JS_SAVE;
657 joydev->glue.JS_CORR = ds32.JS_CORR;
662 ds32.JS_TIMEOUT = joydev->glue.JS_TIMEOUT;
663 ds32.BUSY = joydev->glue.BUSY;
664 ds32.JS_EXPIRETIME = joydev->glue.JS_EXPIRETIME;
665 ds32.JS_TIMELIMIT = joydev->glue.JS_TIMELIMIT;
666 ds32.JS_SAVE = joydev->glue.JS_SAVE;
667 ds32.JS_CORR = joydev->glue.JS_CORR;
673 retval = joydev_ioctl_common(joydev, cmd, argp);
678 mutex_unlock(&joydev->mutex);
687 struct joydev *joydev = client->joydev;
691 retval = mutex_lock_interruptible(&joydev->mutex);
695 if (!joydev->exist) {
703 retval = get_user(joydev->glue.JS_TIMELIMIT,
708 retval = put_user(joydev->glue.JS_TIMELIMIT,
713 retval = copy_from_user(&joydev->glue, argp,
714 sizeof(joydev->glue)) ? -EFAULT: 0;
718 retval = copy_to_user(argp, &joydev->glue,
719 sizeof(joydev->glue)) ? -EFAULT : 0;
723 retval = joydev_ioctl_common(joydev, cmd, argp);
727 mutex_unlock(&joydev->mutex);
744 static int joydev_install_chrdev(struct joydev *joydev)
746 joydev_table[joydev->minor] = joydev;
750 static void joydev_remove_chrdev(struct joydev *joydev)
753 joydev_table[joydev->minor] = NULL;
762 static void joydev_mark_dead(struct joydev *joydev)
764 mutex_lock(&joydev->mutex);
765 joydev->exist = false;
766 mutex_unlock(&joydev->mutex);
769 static void joydev_cleanup(struct joydev *joydev)
771 struct input_handle *handle = &joydev->handle;
773 joydev_mark_dead(joydev);
774 joydev_hangup(joydev);
775 joydev_remove_chrdev(joydev);
777 /* joydev is marked dead so noone else accesses joydev->open */
778 if (joydev->open)
799 struct joydev *joydev;
808 printk(KERN_ERR "joydev: no more free joydev devices\n");
812 joydev = kzalloc(sizeof(struct joydev), GFP_KERNEL);
813 if (!joydev)
816 INIT_LIST_HEAD(&joydev->client_list);
817 spin_lock_init(&joydev->client_lock);
818 mutex_init(&joydev->mutex);
819 init_waitqueue_head(&joydev->wait);
821 dev_set_name(&joydev->dev, "js%d", minor);
822 joydev->exist = true;
823 joydev->minor = minor;
825 joydev->handle.dev = input_get_device(dev);
826 joydev->handle.name = dev_name(&joydev->dev);
827 joydev->handle.handler = handler;
828 joydev->handle.private = joydev;
832 joydev->absmap[i] = joydev->nabs;
833 joydev->abspam[joydev->nabs] = i;
834 joydev->nabs++;
839 joydev->keymap[i] = joydev->nkey;
840 joydev->keypam[joydev->nkey] = i + BTN_MISC;
841 joydev->nkey++;
846 joydev->keymap[i] = joydev->nkey;
847 joydev->keypam[joydev->nkey] = i + BTN_MISC;
848 joydev->nkey++;
851 for (i = 0; i < joydev->nabs; i++) {
852 j = joydev->abspam[i];
854 joydev->corr[i].type = JS_CORR_NONE;
855 joydev->abs[i] = input_abs_get_val(dev, j);
858 joydev->corr[i].type = JS_CORR_BROKEN;
859 joydev->corr[i].prec = input_abs_get_fuzz(dev, j);
862 joydev->corr[i].coef[0] = t - input_abs_get_flat(dev, j);
863 joydev->corr[i].coef[1] = t + input_abs_get_flat(dev, j);
868 joydev->corr[i].coef[2] = (1 << 29) / t;
869 joydev->corr[i].coef[3] = (1 << 29) / t;
871 joydev->abs[i] =
873 joydev->corr + i);
877 joydev->dev.devt = MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + minor);
878 joydev->dev.class = &input_class;
879 joydev->dev.parent = &dev->dev;
880 joydev->dev.release = joydev_free;
881 device_initialize(&joydev->dev);
883 error = input_register_handle(&joydev->handle);
887 error = joydev_install_chrdev(joydev);
891 error = device_add(&joydev->dev);
898 joydev_cleanup(joydev);
900 input_unregister_handle(&joydev->handle);
902 put_device(&joydev->dev);
908 struct joydev *joydev = handle->private;
910 device_del(&joydev->dev);
911 joydev_cleanup(joydev);
913 put_device(&joydev->dev);
965 .name = "joydev",