35 	struct uart_port port;  member
59 static void nwpserial_console_putchar(struct uart_port *port, int c)  in nwpserial_console_putchar()  argument
62 	up = container_of(port, struct nwpserial_port, port);  in nwpserial_console_putchar()
66 	up->port.icount.tx++;  in nwpserial_console_putchar()
77 		locked = spin_trylock_irqsave(&up->port.lock, flags);  in nwpserial_console_write()
79 		spin_lock_irqsave(&up->port.lock, flags);  in nwpserial_console_write()
85 	uart_console_write(&up->port, s, count, nwpserial_console_putchar);  in nwpserial_console_write()
95 		spin_unlock_irqrestore(&up->port.lock, flags);  in nwpserial_console_write()
114 static int nwpserial_request_port(struct uart_port *port)  in nwpserial_request_port()  argument
119 static void nwpserial_release_port(struct uart_port *port)  in nwpserial_release_port()  argument
124 static void nwpserial_config_port(struct uart_port *port, int flags)  in nwpserial_config_port()  argument
126 	port->type = PORT_NWPSERIAL;  in nwpserial_config_port()
132 	struct tty_port *port = &up->port.state->port;  in nwpserial_interrupt()  local
137 	spin_lock(&up->port.lock);  in nwpserial_interrupt()
147 		up->port.icount.rx++;  in nwpserial_interrupt()
149 		if (up->port.ignore_status_mask != NWPSERIAL_STATUS_RXVALID)  in nwpserial_interrupt()
150 			tty_insert_flip_char(port, ch, TTY_NORMAL);  in nwpserial_interrupt()
153 	spin_unlock(&up->port.lock);  in nwpserial_interrupt()
154 	tty_flip_buffer_push(port);  in nwpserial_interrupt()
155 	spin_lock(&up->port.lock);  in nwpserial_interrupt()
162 	spin_unlock(&up->port.lock);  in nwpserial_interrupt()
166 static int nwpserial_startup(struct uart_port *port)  in nwpserial_startup()  argument
171 	up = container_of(port, struct nwpserial_port, port);  in nwpserial_startup()
178 	err = request_irq(up->port.irq, nwpserial_interrupt,  in nwpserial_startup()
188 	up->port.ignore_status_mask &= ~NWPSERIAL_STATUS_RXVALID;  in nwpserial_startup()
193 static void nwpserial_shutdown(struct uart_port *port)  in nwpserial_shutdown()  argument
196 	up = container_of(port, struct nwpserial_port, port);  in nwpserial_shutdown()
199 	up->port.ignore_status_mask |= NWPSERIAL_STATUS_RXVALID;  in nwpserial_shutdown()
206 	free_irq(up->port.irq, up);  in nwpserial_shutdown()
209 static int nwpserial_verify_port(struct uart_port *port,  in nwpserial_verify_port()  argument
215 static const char *nwpserial_type(struct uart_port *port)  in nwpserial_type()  argument
217 	return port->type == PORT_NWPSERIAL ? "nwpserial" : NULL;  in nwpserial_type()
220 static void nwpserial_set_termios(struct uart_port *port,  in nwpserial_set_termios()  argument
224 	up = container_of(port, struct nwpserial_port, port);  in nwpserial_set_termios()
226 	up->port.read_status_mask = NWPSERIAL_STATUS_RXVALID  in nwpserial_set_termios()
229 	up->port.ignore_status_mask = 0;  in nwpserial_set_termios()
232 		up->port.ignore_status_mask |= NWPSERIAL_STATUS_RXVALID;  in nwpserial_set_termios()
239 static void nwpserial_break_ctl(struct uart_port *port, int ctl)  in nwpserial_break_ctl()  argument
244 static void nwpserial_stop_rx(struct uart_port *port)  in nwpserial_stop_rx()  argument
247 	up = container_of(port, struct nwpserial_port, port);  in nwpserial_stop_rx()
249 	up->port.ignore_status_mask = NWPSERIAL_STATUS_RXVALID;  in nwpserial_stop_rx()
257 	up->port.icount.tx++;  in nwpserial_putchar()
260 static void nwpserial_start_tx(struct uart_port *port)  in nwpserial_start_tx()  argument
264 	up = container_of(port, struct nwpserial_port, port);  in nwpserial_start_tx()
265 	xmit  = &up->port.state->xmit;  in nwpserial_start_tx()
267 	if (port->x_char) {  in nwpserial_start_tx()
268 		nwpserial_putchar(up, up->port.x_char);  in nwpserial_start_tx()
269 		port->x_char = 0;  in nwpserial_start_tx()
272 	while (!(uart_circ_empty(xmit) || uart_tx_stopped(&up->port))) {  in nwpserial_start_tx()
278 static unsigned int nwpserial_get_mctrl(struct uart_port *port)  in nwpserial_get_mctrl()  argument
283 static void nwpserial_set_mctrl(struct uart_port *port, unsigned int mctrl)  in nwpserial_set_mctrl()  argument
288 static void nwpserial_stop_tx(struct uart_port *port)  in nwpserial_stop_tx()  argument
293 static unsigned int nwpserial_tx_empty(struct uart_port *port)  in nwpserial_tx_empty()  argument
298 	up = container_of(port, struct nwpserial_port, port);  in nwpserial_tx_empty()
300 	spin_lock_irqsave(&up->port.lock, flags);  in nwpserial_tx_empty()
302 	spin_unlock_irqrestore(&up->port.lock, flags);  in nwpserial_tx_empty()
335 int nwpserial_register_port(struct uart_port *port)  in nwpserial_register_port()  argument
347 	dn = port->dev->of_node;  in nwpserial_register_port()
356 		if (nwpserial_ports[i].port.iobase == dcr_base) {  in nwpserial_register_port()
364 			if (nwpserial_ports[i].port.type == PORT_UNKNOWN &&  in nwpserial_register_port()
365 				nwpserial_ports[i].port.iobase == 0) {  in nwpserial_register_port()
379 	up->port.membase      = port->membase;  in nwpserial_register_port()
380 	up->port.irq          = port->irq;  in nwpserial_register_port()
381 	up->port.uartclk      = port->uartclk;  in nwpserial_register_port()
382 	up->port.fifosize     = port->fifosize;  in nwpserial_register_port()
383 	up->port.regshift     = port->regshift;  in nwpserial_register_port()
384 	up->port.iotype       = port->iotype;  in nwpserial_register_port()
385 	up->port.flags        = port->flags;  in nwpserial_register_port()
386 	up->port.mapbase      = port->mapbase;  in nwpserial_register_port()
387 	up->port.private_data = port->private_data;  in nwpserial_register_port()
389 	if (port->dev)  in nwpserial_register_port()
390 		up->port.dev = port->dev;  in nwpserial_register_port()
392 	if (up->port.iobase != dcr_base) {  in nwpserial_register_port()
393 		up->port.ops          = &nwpserial_pops;  in nwpserial_register_port()
394 		up->port.fifosize     = 16;  in nwpserial_register_port()
396 		spin_lock_init(&up->port.lock);  in nwpserial_register_port()
398 		up->port.iobase = dcr_base;  in nwpserial_register_port()
408 	ret = uart_add_one_port(&nwpserial_reg, &up->port);  in nwpserial_register_port()
410 		ret = up->port.line;  in nwpserial_register_port()
423 	uart_remove_one_port(&nwpserial_reg, &up->port);  in nwpserial_unregister_port()
425 	up->port.type = PORT_UNKNOWN;  in nwpserial_unregister_port()
443 		if (nwpserial_ports[i].port.type == PORT_UNKNOWN) {  in nwpserial_console_init()
459 	spin_lock_init(&up->port.lock);  in nwpserial_console_init()
460 	up->port.ops = &nwpserial_pops;  in nwpserial_console_init()
461 	up->port.type = PORT_NWPSERIAL;  in nwpserial_console_init()
462 	up->port.fifosize = 16;  in nwpserial_console_init()
466 	up->port.iobase = dcr_base;  in nwpserial_console_init()