Lines Matching full:up
121 struct uart_8250_port *up; in serial8250_interrupt() local
124 up = list_entry(l, struct uart_8250_port, list); in serial8250_interrupt()
125 port = &up->port; in serial8250_interrupt()
153 static void serial_do_unlink(struct irq_info *i, struct uart_8250_port *up) in serial_do_unlink() argument
158 if (i->head == &up->list) in serial_do_unlink()
160 list_del(&up->list); in serial_do_unlink()
162 BUG_ON(i->head != &up->list); in serial_do_unlink()
173 static int serial_link_irq_chain(struct uart_8250_port *up) in serial_link_irq_chain() argument
181 h = &irq_lists[up->port.irq % NR_IRQ_HASH]; in serial_link_irq_chain()
184 if (i->irq == up->port.irq) in serial_link_irq_chain()
194 i->irq = up->port.irq; in serial_link_irq_chain()
202 list_add(&up->list, i->head); in serial_link_irq_chain()
207 INIT_LIST_HEAD(&up->list); in serial_link_irq_chain()
208 i->head = &up->list; in serial_link_irq_chain()
210 ret = request_irq(up->port.irq, serial8250_interrupt, in serial_link_irq_chain()
211 up->port.irqflags, up->port.name, i); in serial_link_irq_chain()
213 serial_do_unlink(i, up); in serial_link_irq_chain()
219 static void serial_unlink_irq_chain(struct uart_8250_port *up) in serial_unlink_irq_chain() argument
226 h = &irq_lists[up->port.irq % NR_IRQ_HASH]; in serial_unlink_irq_chain()
229 if (i->irq == up->port.irq) in serial_unlink_irq_chain()
236 free_irq(up->port.irq, i); in serial_unlink_irq_chain()
238 serial_do_unlink(i, up); in serial_unlink_irq_chain()
250 struct uart_8250_port *up = from_timer(up, t, timer); in serial8250_timeout() local
252 up->port.handle_irq(&up->port); in serial8250_timeout()
253 mod_timer(&up->timer, jiffies + uart_poll_timeout(&up->port)); in serial8250_timeout()
258 struct uart_8250_port *up = from_timer(up, t, timer); in serial8250_backup_timeout() local
262 uart_port_lock_irqsave(&up->port, &flags); in serial8250_backup_timeout()
268 if (up->port.irq) { in serial8250_backup_timeout()
269 ier = serial_in(up, UART_IER); in serial8250_backup_timeout()
270 serial_out(up, UART_IER, 0); in serial8250_backup_timeout()
273 iir = serial_in(up, UART_IIR); in serial8250_backup_timeout()
281 lsr = serial_lsr_in(up); in serial8250_backup_timeout()
282 if ((iir & UART_IIR_NO_INT) && (up->ier & UART_IER_THRI) && in serial8250_backup_timeout()
283 (!uart_circ_empty(&up->port.state->xmit) || up->port.x_char) && in serial8250_backup_timeout()
290 serial8250_tx_chars(up); in serial8250_backup_timeout()
292 if (up->port.irq) in serial8250_backup_timeout()
293 serial_out(up, UART_IER, ier); in serial8250_backup_timeout()
295 uart_port_unlock_irqrestore(&up->port, flags); in serial8250_backup_timeout()
298 mod_timer(&up->timer, in serial8250_backup_timeout()
299 jiffies + uart_poll_timeout(&up->port) + HZ / 5); in serial8250_backup_timeout()
302 static void univ8250_setup_timer(struct uart_8250_port *up) in univ8250_setup_timer() argument
304 struct uart_port *port = &up->port; in univ8250_setup_timer()
310 if (up->bugs & UART_BUG_THRE) { in univ8250_setup_timer()
313 up->timer.function = serial8250_backup_timeout; in univ8250_setup_timer()
314 mod_timer(&up->timer, jiffies + in univ8250_setup_timer()
324 mod_timer(&up->timer, jiffies + uart_poll_timeout(port)); in univ8250_setup_timer()
327 static int univ8250_setup_irq(struct uart_8250_port *up) in univ8250_setup_irq() argument
329 struct uart_port *port = &up->port; in univ8250_setup_irq()
332 return serial_link_irq_chain(up); in univ8250_setup_irq()
337 static void univ8250_release_irq(struct uart_8250_port *up) in univ8250_release_irq() argument
339 struct uart_port *port = &up->port; in univ8250_release_irq()
341 del_timer_sync(&up->timer); in univ8250_release_irq()
342 up->timer.function = serial8250_timeout; in univ8250_release_irq()
344 serial_unlink_irq_chain(up); in univ8250_release_irq()
348 static int serial8250_request_rsa_resource(struct uart_8250_port *up) in serial8250_request_rsa_resource() argument
350 unsigned long start = UART_RSA_BASE << up->port.regshift; in serial8250_request_rsa_resource()
351 unsigned int size = 8 << up->port.regshift; in serial8250_request_rsa_resource()
352 struct uart_port *port = &up->port; in serial8250_request_rsa_resource()
369 static void serial8250_release_rsa_resource(struct uart_8250_port *up) in serial8250_release_rsa_resource() argument
371 unsigned long offset = UART_RSA_BASE << up->port.regshift; in serial8250_release_rsa_resource()
372 unsigned int size = 8 << up->port.regshift; in serial8250_release_rsa_resource()
373 struct uart_port *port = &up->port; in serial8250_release_rsa_resource()
413 static void (*serial8250_isa_config)(int port, struct uart_port *up,
417 void (*v)(int port, struct uart_port *up, u32 *capabilities)) in serial8250_set_isa_configurator() argument
427 struct uart_8250_port *up = up_to_u8250p(port); in univ8250_config_port() local
429 up->probe &= ~UART_PROBE_RSA; in univ8250_config_port()
431 if (serial8250_request_rsa_resource(up) == 0) in univ8250_config_port()
432 up->probe |= UART_PROBE_RSA; in univ8250_config_port()
437 if (probe_rsa[i] == up->port.iobase) { in univ8250_config_port()
438 if (serial8250_request_rsa_resource(up) == 0) in univ8250_config_port()
439 up->probe |= UART_PROBE_RSA; in univ8250_config_port()
447 if (port->type != PORT_RSA && up->probe & UART_PROBE_RSA) in univ8250_config_port()
448 serial8250_release_rsa_resource(up); in univ8250_config_port()
453 struct uart_8250_port *up = up_to_u8250p(port); in univ8250_request_port() local
458 ret = serial8250_request_rsa_resource(up); in univ8250_request_port()
468 struct uart_8250_port *up = up_to_u8250p(port); in univ8250_release_port() local
471 serial8250_release_rsa_resource(up); in univ8250_release_port()
486 static inline void serial8250_apply_quirks(struct uart_8250_port *up) in serial8250_apply_quirks() argument
488 up->port.quirks |= skip_txen_test ? UPQ_NO_TXEN_TEST : 0; in serial8250_apply_quirks()
493 struct uart_8250_port *up; in serial8250_setup_port() local
498 up = &serial8250_ports[index]; in serial8250_setup_port()
499 up->port.line = index; in serial8250_setup_port()
500 up->port.port_id = index; in serial8250_setup_port()
502 serial8250_init_port(up); in serial8250_setup_port()
504 base_ops = up->port.ops; in serial8250_setup_port()
505 up->port.ops = &univ8250_port_ops; in serial8250_setup_port()
507 timer_setup(&up->timer, serial8250_timeout, 0); in serial8250_setup_port()
509 up->ops = &univ8250_driver_ops; in serial8250_setup_port()
513 up->port.set_mctrl = alpha_jensen_set_mctrl; in serial8250_setup_port()
515 serial8250_set_defaults(up); in serial8250_setup_port()
517 return up; in serial8250_setup_port()
522 struct uart_8250_port *up; in serial8250_isa_init_ports() local
534 * Set up initial isa ports based on nr_uart module param, or else in serial8250_isa_init_ports()
536 * need to increase nr_uarts when setting up the initial isa ports. in serial8250_isa_init_ports()
548 for (i = 0, up = serial8250_ports; in serial8250_isa_init_ports()
550 i++, up++) { in serial8250_isa_init_ports()
551 struct uart_port *port = &up->port; in serial8250_isa_init_ports()
565 serial8250_isa_config(i, &up->port, &up->capabilities); in serial8250_isa_init_ports()
575 struct uart_8250_port *up = &serial8250_ports[i]; in serial8250_register_ports() local
577 if (up->port.type == PORT_8250_CIR) in serial8250_register_ports()
580 if (up->port.dev) in serial8250_register_ports()
583 up->port.dev = dev; in serial8250_register_ports()
585 if (uart_console_registered(&up->port)) in serial8250_register_ports()
586 pm_runtime_get_sync(up->port.dev); in serial8250_register_ports()
588 serial8250_apply_quirks(up); in serial8250_register_ports()
589 uart_add_one_port(drv, &up->port); in serial8250_register_ports()
598 struct uart_8250_port *up = &serial8250_ports[co->index]; in univ8250_console_write() local
600 serial8250_console_write(up, s, count); in univ8250_console_write()
605 struct uart_8250_port *up; in univ8250_console_setup() local
618 * If the console is past the initial isa ports, init more ports up to in univ8250_console_setup()
622 up = serial8250_setup_port(i); in univ8250_console_setup()
623 if (!up) in univ8250_console_setup()
786 struct uart_8250_port *up = &serial8250_ports[line]; in serial8250_suspend_port() local
787 struct uart_port *port = &up->port; in serial8250_suspend_port()
793 serial_out(up, UART_SCR, canary); in serial8250_suspend_port()
794 if (serial_in(up, UART_SCR) == canary) in serial8250_suspend_port()
795 up->canary = canary; in serial8250_suspend_port()
810 struct uart_8250_port *up = &serial8250_ports[line]; in serial8250_resume_port() local
811 struct uart_port *port = &up->port; in serial8250_resume_port()
813 up->canary = 0; in serial8250_resume_port()
815 if (up->capabilities & UART_NATSEMI) { in serial8250_resume_port()
819 ns16550a_goto_highspeed(up); in serial8250_resume_port()
891 struct uart_8250_port *up = &serial8250_ports[i]; in serial8250_remove() local
893 if (up->port.dev == &dev->dev) in serial8250_remove()
903 struct uart_8250_port *up = &serial8250_ports[i]; in serial8250_suspend() local
905 if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev) in serial8250_suspend()
906 uart_suspend_port(&serial8250_reg, &up->port); in serial8250_suspend()
917 struct uart_8250_port *up = &serial8250_ports[i]; in serial8250_resume() local
919 if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev) in serial8250_resume()
988 struct uart_8250_port *up = in serial_8250_overrun_backoff_work() local
991 struct uart_port *port = &up->port; in serial_8250_overrun_backoff_work()
995 up->ier |= UART_IER_RLSI | UART_IER_RDI; in serial_8250_overrun_backoff_work()
996 up->port.read_status_mask |= UART_LSR_DR; in serial_8250_overrun_backoff_work()
997 serial_out(up, UART_IER, up->ier); in serial_8250_overrun_backoff_work()
1003 * @up: serial port template
1006 * port exists and is in use, it is hung up and unregistered
1014 int serial8250_register_8250_port(const struct uart_8250_port *up) in serial8250_register_8250_port() argument
1019 if (up->port.uartclk == 0) in serial8250_register_8250_port()
1024 uart = serial8250_find_match_or_unused(&up->port); in serial8250_register_8250_port()
1042 uart->port.ctrl_id = up->port.ctrl_id; in serial8250_register_8250_port()
1043 uart->port.port_id = up->port.port_id; in serial8250_register_8250_port()
1044 uart->port.iobase = up->port.iobase; in serial8250_register_8250_port()
1045 uart->port.membase = up->port.membase; in serial8250_register_8250_port()
1046 uart->port.irq = up->port.irq; in serial8250_register_8250_port()
1047 uart->port.irqflags = up->port.irqflags; in serial8250_register_8250_port()
1048 uart->port.uartclk = up->port.uartclk; in serial8250_register_8250_port()
1049 uart->port.fifosize = up->port.fifosize; in serial8250_register_8250_port()
1050 uart->port.regshift = up->port.regshift; in serial8250_register_8250_port()
1051 uart->port.iotype = up->port.iotype; in serial8250_register_8250_port()
1052 uart->port.flags = up->port.flags | UPF_BOOT_AUTOCONF; in serial8250_register_8250_port()
1053 uart->bugs = up->bugs; in serial8250_register_8250_port()
1054 uart->port.mapbase = up->port.mapbase; in serial8250_register_8250_port()
1055 uart->port.mapsize = up->port.mapsize; in serial8250_register_8250_port()
1056 uart->port.private_data = up->port.private_data; in serial8250_register_8250_port()
1057 uart->tx_loadsz = up->tx_loadsz; in serial8250_register_8250_port()
1058 uart->capabilities = up->capabilities; in serial8250_register_8250_port()
1059 uart->port.throttle = up->port.throttle; in serial8250_register_8250_port()
1060 uart->port.unthrottle = up->port.unthrottle; in serial8250_register_8250_port()
1061 uart->port.rs485_config = up->port.rs485_config; in serial8250_register_8250_port()
1062 uart->port.rs485_supported = up->port.rs485_supported; in serial8250_register_8250_port()
1063 uart->port.rs485 = up->port.rs485; in serial8250_register_8250_port()
1064 uart->rs485_start_tx = up->rs485_start_tx; in serial8250_register_8250_port()
1065 uart->rs485_stop_tx = up->rs485_stop_tx; in serial8250_register_8250_port()
1066 uart->lsr_save_mask = up->lsr_save_mask; in serial8250_register_8250_port()
1067 uart->dma = up->dma; in serial8250_register_8250_port()
1073 if (up->port.dev) { in serial8250_register_8250_port()
1074 uart->port.dev = up->port.dev; in serial8250_register_8250_port()
1080 if (up->port.flags & UPF_FIXED_TYPE) in serial8250_register_8250_port()
1081 uart->port.type = up->port.type; in serial8250_register_8250_port()
1100 if (up->port.serial_in) in serial8250_register_8250_port()
1101 uart->port.serial_in = up->port.serial_in; in serial8250_register_8250_port()
1102 if (up->port.serial_out) in serial8250_register_8250_port()
1103 uart->port.serial_out = up->port.serial_out; in serial8250_register_8250_port()
1104 if (up->port.handle_irq) in serial8250_register_8250_port()
1105 uart->port.handle_irq = up->port.handle_irq; in serial8250_register_8250_port()
1107 if (up->port.set_termios) in serial8250_register_8250_port()
1108 uart->port.set_termios = up->port.set_termios; in serial8250_register_8250_port()
1109 if (up->port.set_ldisc) in serial8250_register_8250_port()
1110 uart->port.set_ldisc = up->port.set_ldisc; in serial8250_register_8250_port()
1111 if (up->port.get_mctrl) in serial8250_register_8250_port()
1112 uart->port.get_mctrl = up->port.get_mctrl; in serial8250_register_8250_port()
1113 if (up->port.set_mctrl) in serial8250_register_8250_port()
1114 uart->port.set_mctrl = up->port.set_mctrl; in serial8250_register_8250_port()
1115 if (up->port.get_divisor) in serial8250_register_8250_port()
1116 uart->port.get_divisor = up->port.get_divisor; in serial8250_register_8250_port()
1117 if (up->port.set_divisor) in serial8250_register_8250_port()
1118 uart->port.set_divisor = up->port.set_divisor; in serial8250_register_8250_port()
1119 if (up->port.startup) in serial8250_register_8250_port()
1120 uart->port.startup = up->port.startup; in serial8250_register_8250_port()
1121 if (up->port.shutdown) in serial8250_register_8250_port()
1122 uart->port.shutdown = up->port.shutdown; in serial8250_register_8250_port()
1123 if (up->port.pm) in serial8250_register_8250_port()
1124 uart->port.pm = up->port.pm; in serial8250_register_8250_port()
1125 if (up->port.handle_break) in serial8250_register_8250_port()
1126 uart->port.handle_break = up->port.handle_break; in serial8250_register_8250_port()
1127 if (up->dl_read) in serial8250_register_8250_port()
1128 uart->dl_read = up->dl_read; in serial8250_register_8250_port()
1129 if (up->dl_write) in serial8250_register_8250_port()
1130 uart->dl_write = up->dl_write; in serial8250_register_8250_port()
1158 if (up->overrun_backoff_time_ms > 0) { in serial8250_register_8250_port()
1160 up->overrun_backoff_time_ms; in serial8250_register_8250_port()