input/serio/serport.c

31 struct serport {
46 	struct serport *serport = serio->port_data;
47 	return -(serport->tty->ops->write(serport->tty, &data, 1) != 1);
52 	struct serport *serport = serio->port_data;
55 	spin_lock_irqsave(&serport->lock, flags);
56 	set_bit(SERPORT_ACTIVE, &serport->flags);
57 	spin_unlock_irqrestore(&serport->lock, flags);
65 	struct serport *serport = serio->port_data;
68 	spin_lock_irqsave(&serport->lock, flags);
69 	clear_bit(SERPORT_ACTIVE, &serport->flags);
70 	spin_unlock_irqrestore(&serport->lock, flags);
80 	struct serport *serport;
85 	serport = kzalloc(sizeof(struct serport), GFP_KERNEL);
86 	if (!serport)
89 	serport->tty = tty;
90 	spin_lock_init(&serport->lock);
91 	init_waitqueue_head(&serport->wait);
93 	tty->disc_data = serport;
106 	struct serport *serport = tty->disc_data;
108 	kfree(serport);
120 	struct serport *serport = tty->disc_data;
125 	spin_lock_irqsave(&serport->lock, flags);
127 	if (!test_bit(SERPORT_ACTIVE, &serport->flags))
147 		serio_interrupt(serport->serio, cp[i], ch_flags);
151 	spin_unlock_irqrestore(&serport->lock, flags);
164 	struct serport *serport = tty->disc_data;
167 	if (test_and_set_bit(SERPORT_BUSY, &serport->flags))
170 	serport->serio = serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
176 	serio->id = serport->id;
181 	serio->port_data = serport;
184 	serio_register_port(serport->serio);
187 	wait_event_interruptible(serport->wait, test_bit(SERPORT_DEAD, &serport->flags));
188 	serio_unregister_port(serport->serio);
189 	serport->serio = NULL;
191 	clear_bit(SERPORT_DEAD, &serport->flags);
192 	clear_bit(SERPORT_BUSY, &serport->flags);
199 	struct serport *serport = tty->disc_data;
201 	serport->id.proto = type & 0x000000ff;
202 	serport->id.id    = (type & 0x0000ff00) >> 8;
203 	serport->id.extra = (type & 0x00ff0000) >> 16;
248 	struct serport *serport = tty->disc_data;
251 	spin_lock_irqsave(&serport->lock, flags);
252 	set_bit(SERPORT_DEAD, &serport->flags);
253 	spin_unlock_irqrestore(&serport->lock, flags);
255 	wake_up_interruptible(&serport->wait);
260 	struct serport *serport = tty->disc_data;
263 	spin_lock_irqsave(&serport->lock, flags);
264 	if (test_bit(SERPORT_ACTIVE, &serport->flags))
265 		serio_drv_write_wakeup(serport->serio);
266 	spin_unlock_irqrestore(&serport->lock, flags);
298 		printk(KERN_ERR "serport.c: Error registering line discipline.\n");