-static int remote_event_file_open(struct inode *inode, struct file *file)
-{
- struct service_processor *sp;
- unsigned long flags;
- struct remote_queue *q;
-
- file->private_data = inode->u.generic_ip;
- sp = file->private_data;
- q = &sp->remote_queue;
-
- /* allow only one event reader */
- spin_lock_irqsave(&sp->lock, flags);
- if (q->open) {
- spin_unlock_irqrestore(&sp->lock, flags);
- return -EBUSY;
- }
- q->open = 1;
- spin_unlock_irqrestore(&sp->lock, flags);
-
- enable_mouse_interrupts(sp);
-
- return 0;
-}
-
-static int remote_event_file_close(struct inode *inode, struct file *file)
-{
- struct service_processor *sp = file->private_data;
-
- disable_mouse_interrupts(sp);
- wake_up_interruptible(&sp->remote_queue.wait);
- sp->remote_queue.open = 0;
-
- return 0;
-}
-
-static ssize_t remote_event_file_read(struct file *file, char __user *buf, size_t count, loff_t *offset)
-{
- struct service_processor *sp = file->private_data;
- struct remote_queue *q = &sp->remote_queue;
- size_t data_size;
- struct remote_event *reader = q->reader;
- size_t num_events;
-
- if (*offset < 0)
- return -EINVAL;
- if (count == 0 || count > 1024)
- return 0;
- if (*offset != 0)
- return 0;
-
- if (wait_event_interruptible(q->wait, q->reader != q->writer))
- return -ERESTARTSYS;
-
- /* only get multiples of struct remote_event */
- num_events = min((count/sizeof(struct remote_event)), ibmasm_events_available(q));
- if (!num_events)
- return 0;
-
- data_size = num_events * sizeof(struct remote_event);
-
- if (copy_to_user(buf, reader, data_size))
- return -EFAULT;
-
- ibmasm_advance_reader(q, num_events);
-
- return data_size;
-}
-
-