Lines Matching full:port
121 struct uart_port *port; in serial8250_interrupt() local
124 port = &up->port; in serial8250_interrupt()
126 if (port->handle_irq(port)) { in serial8250_interrupt()
181 h = &irq_lists[up->port.irq % NR_IRQ_HASH]; in serial_link_irq_chain()
185 if (i->irq == up->port.irq) in serial_link_irq_chain()
196 i->irq = up->port.irq; in serial_link_irq_chain()
212 ret = request_irq(up->port.irq, serial8250_interrupt, in serial_link_irq_chain()
213 up->port.irqflags, up->port.name, i); in serial_link_irq_chain()
233 h = &irq_lists[up->port.irq % NR_IRQ_HASH]; in serial_unlink_irq_chain()
237 if (i->irq == up->port.irq) in serial_unlink_irq_chain()
245 free_irq(up->port.irq, i); in serial_unlink_irq_chain()
261 up->port.handle_irq(&up->port); in serial8250_timeout()
262 mod_timer(&up->timer, jiffies + uart_poll_timeout(&up->port)); in serial8250_timeout()
271 spin_lock_irqsave(&up->port.lock, flags); in serial8250_backup_timeout()
277 if (up->port.irq) { in serial8250_backup_timeout()
293 (!uart_circ_empty(&up->port.state->xmit) || up->port.x_char) && in serial8250_backup_timeout()
302 if (up->port.irq) in serial8250_backup_timeout()
305 spin_unlock_irqrestore(&up->port.lock, flags); in serial8250_backup_timeout()
307 /* Standard timer interval plus 0.2s to keep the port running */ in serial8250_backup_timeout()
309 jiffies + uart_poll_timeout(&up->port) + HZ / 5); in serial8250_backup_timeout()
314 struct uart_port *port = &up->port; in univ8250_setup_irq() local
319 * the port is opened so this value needs to be preserved. in univ8250_setup_irq()
322 pr_debug("%s - using backup timer\n", port->name); in univ8250_setup_irq()
326 uart_poll_timeout(port) + HZ / 5); in univ8250_setup_irq()
330 * If the "interrupt" for this port doesn't correspond with any in univ8250_setup_irq()
334 if (!port->irq) { in univ8250_setup_irq()
335 mod_timer(&up->timer, jiffies + uart_poll_timeout(port)); in univ8250_setup_irq()
344 struct uart_port *port = &up->port; in univ8250_release_irq() local
348 if (port->irq) in univ8250_release_irq()
355 unsigned long start = UART_RSA_BASE << up->port.regshift; in serial8250_request_rsa_resource()
356 unsigned int size = 8 << up->port.regshift; in serial8250_request_rsa_resource()
357 struct uart_port *port = &up->port; in serial8250_request_rsa_resource() local
360 switch (port->iotype) { in serial8250_request_rsa_resource()
363 start += port->iobase; in serial8250_request_rsa_resource()
376 unsigned long offset = UART_RSA_BASE << up->port.regshift; in serial8250_release_rsa_resource()
377 unsigned int size = 8 << up->port.regshift; in serial8250_release_rsa_resource()
378 struct uart_port *port = &up->port; in serial8250_release_rsa_resource() local
380 switch (port->iotype) { in serial8250_release_rsa_resource()
383 release_region(port->iobase + offset, size); in serial8250_release_rsa_resource()
409 * port.
417 static void (*serial8250_isa_config)(int port, struct uart_port *up,
421 void (*v)(int port, struct uart_port *up, u32 *capabilities)) in serial8250_set_isa_configurator() argument
429 static void univ8250_config_port(struct uart_port *port, int flags) in univ8250_config_port() argument
431 struct uart_8250_port *up = up_to_u8250p(port); in univ8250_config_port()
434 if (port->type == PORT_RSA) { in univ8250_config_port()
441 if (probe_rsa[i] == up->port.iobase) { in univ8250_config_port()
449 base_ops->config_port(port, flags); in univ8250_config_port()
451 if (port->type != PORT_RSA && up->probe & UART_PROBE_RSA) in univ8250_config_port()
455 static int univ8250_request_port(struct uart_port *port) in univ8250_request_port() argument
457 struct uart_8250_port *up = up_to_u8250p(port); in univ8250_request_port()
460 ret = base_ops->request_port(port); in univ8250_request_port()
461 if (ret == 0 && port->type == PORT_RSA) { in univ8250_request_port()
464 base_ops->release_port(port); in univ8250_request_port()
470 static void univ8250_release_port(struct uart_port *port) in univ8250_release_port() argument
472 struct uart_8250_port *up = up_to_u8250p(port); in univ8250_release_port()
474 if (port->type == PORT_RSA) in univ8250_release_port()
476 base_ops->release_port(port); in univ8250_release_port()
492 up->port.quirks |= skip_txen_test ? UPQ_NO_TXEN_TEST : 0; in serial8250_apply_quirks()
510 struct uart_port *port = &up->port; in serial8250_isa_init_ports() local
512 port->line = i; in serial8250_isa_init_ports()
515 base_ops = port->ops; in serial8250_isa_init_ports()
516 port->ops = &univ8250_port_ops; in serial8250_isa_init_ports()
530 /* chain base port ops to support Remote Supervisor Adapter */ in serial8250_isa_init_ports()
540 struct uart_port *port = &up->port; in serial8250_isa_init_ports() local
542 port->iobase = old_serial_port[i].port; in serial8250_isa_init_ports()
543 port->irq = irq_canonicalize(old_serial_port[i].irq); in serial8250_isa_init_ports()
544 port->irqflags = 0; in serial8250_isa_init_ports()
545 port->uartclk = old_serial_port[i].baud_base * 16; in serial8250_isa_init_ports()
546 port->flags = old_serial_port[i].flags; in serial8250_isa_init_ports()
547 port->hub6 = 0; in serial8250_isa_init_ports()
548 port->membase = old_serial_port[i].iomem_base; in serial8250_isa_init_ports()
549 port->iotype = old_serial_port[i].io_type; in serial8250_isa_init_ports()
550 port->regshift = old_serial_port[i].iomem_reg_shift; in serial8250_isa_init_ports()
552 port->irqflags |= irqflag; in serial8250_isa_init_ports()
554 serial8250_isa_config(i, &up->port, &up->capabilities); in serial8250_isa_init_ports()
566 if (up->port.type == PORT_8250_CIR) in serial8250_register_ports()
569 if (up->port.dev) in serial8250_register_ports()
572 up->port.dev = dev; in serial8250_register_ports()
575 uart_add_one_port(drv, &up->port); in serial8250_register_ports()
591 struct uart_port *port; in univ8250_console_setup() local
596 * if so, search for the first available port that does have in univ8250_console_setup()
601 port = &serial8250_ports[co->index].port; in univ8250_console_setup()
602 /* link port to console */ in univ8250_console_setup()
603 port->cons = co; in univ8250_console_setup()
605 retval = serial8250_console_setup(port, options, false); in univ8250_console_setup()
607 port->cons = NULL; in univ8250_console_setup()
613 struct uart_port *port; in univ8250_console_exit() local
615 port = &serial8250_ports[co->index].port; in univ8250_console_exit()
616 return serial8250_console_exit(port); in univ8250_console_exit()
651 /* try to match the port specified on the command line */ in univ8250_console_match()
653 struct uart_port *port = &serial8250_ports[i].port; in univ8250_console_match() local
655 if (port->iotype != iotype) in univ8250_console_match()
659 && (port->mapbase != addr)) in univ8250_console_match()
661 if (iotype == UPIO_PORT && port->iobase != addr) in univ8250_console_match()
665 port->cons = co; in univ8250_console_match()
666 return serial8250_console_setup(port, options, true); in univ8250_console_match()
712 * Setup an 8250 port structure prior to console initialisation. Use
715 int __init early_serial_setup(struct uart_port *port) in early_serial_setup() argument
719 if (port->line >= ARRAY_SIZE(serial8250_ports) || nr_uarts == 0) in early_serial_setup()
723 p = &serial8250_ports[port->line].port; in early_serial_setup()
724 p->iobase = port->iobase; in early_serial_setup()
725 p->membase = port->membase; in early_serial_setup()
726 p->irq = port->irq; in early_serial_setup()
727 p->irqflags = port->irqflags; in early_serial_setup()
728 p->uartclk = port->uartclk; in early_serial_setup()
729 p->fifosize = port->fifosize; in early_serial_setup()
730 p->regshift = port->regshift; in early_serial_setup()
731 p->iotype = port->iotype; in early_serial_setup()
732 p->flags = port->flags; in early_serial_setup()
733 p->mapbase = port->mapbase; in early_serial_setup()
734 p->mapsize = port->mapsize; in early_serial_setup()
735 p->private_data = port->private_data; in early_serial_setup()
736 p->type = port->type; in early_serial_setup()
737 p->line = port->line; in early_serial_setup()
741 if (port->serial_in) in early_serial_setup()
742 p->serial_in = port->serial_in; in early_serial_setup()
743 if (port->serial_out) in early_serial_setup()
744 p->serial_out = port->serial_out; in early_serial_setup()
745 if (port->handle_irq) in early_serial_setup()
746 p->handle_irq = port->handle_irq; in early_serial_setup()
752 * serial8250_suspend_port - suspend one serial port
755 * Suspend one serial port.
760 struct uart_port *port = &up->port; in serial8250_suspend_port() local
762 if (!console_suspend_enabled && uart_console(port) && in serial8250_suspend_port()
763 port->type != PORT_8250) { in serial8250_suspend_port()
770 uart_suspend_port(&serial8250_reg, port); in serial8250_suspend_port()
775 * serial8250_resume_port - resume one serial port
778 * Resume one serial port.
783 struct uart_port *port = &up->port; in serial8250_resume_port() local
789 serial_port_out(port, UART_LCR, 0xE0); in serial8250_resume_port()
793 serial_port_out(port, UART_LCR, 0); in serial8250_resume_port()
794 port->uartclk = 921600*16; in serial8250_resume_port()
796 uart_resume_port(&serial8250_reg, port); in serial8250_resume_port()
817 uart.port.iobase = p->iobase; in serial8250_probe()
818 uart.port.membase = p->membase; in serial8250_probe()
819 uart.port.irq = p->irq; in serial8250_probe()
820 uart.port.irqflags = p->irqflags; in serial8250_probe()
821 uart.port.uartclk = p->uartclk; in serial8250_probe()
822 uart.port.regshift = p->regshift; in serial8250_probe()
823 uart.port.iotype = p->iotype; in serial8250_probe()
824 uart.port.flags = p->flags; in serial8250_probe()
825 uart.port.mapbase = p->mapbase; in serial8250_probe()
826 uart.port.hub6 = p->hub6; in serial8250_probe()
827 uart.port.has_sysrq = p->has_sysrq; in serial8250_probe()
828 uart.port.private_data = p->private_data; in serial8250_probe()
829 uart.port.type = p->type; in serial8250_probe()
830 uart.port.serial_in = p->serial_in; in serial8250_probe()
831 uart.port.serial_out = p->serial_out; in serial8250_probe()
832 uart.port.handle_irq = p->handle_irq; in serial8250_probe()
833 uart.port.handle_break = p->handle_break; in serial8250_probe()
834 uart.port.set_termios = p->set_termios; in serial8250_probe()
835 uart.port.set_ldisc = p->set_ldisc; in serial8250_probe()
836 uart.port.get_mctrl = p->get_mctrl; in serial8250_probe()
837 uart.port.pm = p->pm; in serial8250_probe()
838 uart.port.dev = &dev->dev; in serial8250_probe()
839 uart.port.irqflags |= irqflag; in serial8250_probe()
842 dev_err(&dev->dev, "unable to register port at index %d " in serial8250_probe()
861 if (up->port.dev == &dev->dev) in serial8250_remove()
874 if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev) in serial8250_suspend()
875 uart_suspend_port(&serial8250_reg, &up->port); in serial8250_suspend()
888 if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev) in serial8250_resume()
918 static struct uart_8250_port *serial8250_find_match_or_unused(struct uart_port *port) in serial8250_find_match_or_unused() argument
923 * First, find a port entry which matches. in serial8250_find_match_or_unused()
926 if (uart_match_port(&serial8250_ports[i].port, port)) in serial8250_find_match_or_unused()
930 i = port->line; in serial8250_find_match_or_unused()
931 if (i < nr_uarts && serial8250_ports[i].port.type == PORT_UNKNOWN && in serial8250_find_match_or_unused()
932 serial8250_ports[i].port.iobase == 0) in serial8250_find_match_or_unused()
940 if (serial8250_ports[i].port.type == PORT_UNKNOWN && in serial8250_find_match_or_unused()
941 serial8250_ports[i].port.iobase == 0) in serial8250_find_match_or_unused()
946 * doesn't have a real port associated with it. in serial8250_find_match_or_unused()
949 if (serial8250_ports[i].port.type == PORT_UNKNOWN) in serial8250_find_match_or_unused()
960 struct uart_port *port = &up->port; in serial_8250_overrun_backoff_work() local
963 spin_lock_irqsave(&port->lock, flags); in serial_8250_overrun_backoff_work()
965 up->port.read_status_mask |= UART_LSR_DR; in serial_8250_overrun_backoff_work()
967 spin_unlock_irqrestore(&port->lock, flags); in serial_8250_overrun_backoff_work()
971 * serial8250_register_8250_port - register a serial port
972 * @up: serial port template
974 * Configure the serial port specified by the request. If the
975 * port exists and is in use, it is hung up and unregistered
978 * The port is then probed and if necessary the IRQ is autodetected
981 * On success the port is ready to use and the line number is returned.
988 if (up->port.uartclk == 0) in serial8250_register_8250_port()
993 uart = serial8250_find_match_or_unused(&up->port); in serial8250_register_8250_port()
994 if (uart && uart->port.type != PORT_8250_CIR) { in serial8250_register_8250_port()
997 if (uart->port.dev) in serial8250_register_8250_port()
998 uart_remove_one_port(&serial8250_reg, &uart->port); in serial8250_register_8250_port()
1000 uart->port.iobase = up->port.iobase; in serial8250_register_8250_port()
1001 uart->port.membase = up->port.membase; in serial8250_register_8250_port()
1002 uart->port.irq = up->port.irq; in serial8250_register_8250_port()
1003 uart->port.irqflags = up->port.irqflags; in serial8250_register_8250_port()
1004 uart->port.uartclk = up->port.uartclk; in serial8250_register_8250_port()
1005 uart->port.fifosize = up->port.fifosize; in serial8250_register_8250_port()
1006 uart->port.regshift = up->port.regshift; in serial8250_register_8250_port()
1007 uart->port.iotype = up->port.iotype; in serial8250_register_8250_port()
1008 uart->port.flags = up->port.flags | UPF_BOOT_AUTOCONF; in serial8250_register_8250_port()
1010 uart->port.mapbase = up->port.mapbase; in serial8250_register_8250_port()
1011 uart->port.mapsize = up->port.mapsize; in serial8250_register_8250_port()
1012 uart->port.private_data = up->port.private_data; in serial8250_register_8250_port()
1015 uart->port.throttle = up->port.throttle; in serial8250_register_8250_port()
1016 uart->port.unthrottle = up->port.unthrottle; in serial8250_register_8250_port()
1017 uart->port.rs485_config = up->port.rs485_config; in serial8250_register_8250_port()
1018 uart->port.rs485 = up->port.rs485; in serial8250_register_8250_port()
1024 if (uart->port.fifosize && !uart->tx_loadsz) in serial8250_register_8250_port()
1025 uart->tx_loadsz = uart->port.fifosize; in serial8250_register_8250_port()
1027 if (up->port.dev) { in serial8250_register_8250_port()
1028 uart->port.dev = up->port.dev; in serial8250_register_8250_port()
1029 ret = uart_get_rs485_mode(&uart->port); in serial8250_register_8250_port()
1034 if (up->port.flags & UPF_FIXED_TYPE) in serial8250_register_8250_port()
1035 uart->port.type = up->port.type; in serial8250_register_8250_port()
1041 if (!has_acpi_companion(uart->port.dev)) { in serial8250_register_8250_port()
1042 gpios = mctrl_gpio_init(&uart->port, 0); in serial8250_register_8250_port()
1054 if (up->port.serial_in) in serial8250_register_8250_port()
1055 uart->port.serial_in = up->port.serial_in; in serial8250_register_8250_port()
1056 if (up->port.serial_out) in serial8250_register_8250_port()
1057 uart->port.serial_out = up->port.serial_out; in serial8250_register_8250_port()
1058 if (up->port.handle_irq) in serial8250_register_8250_port()
1059 uart->port.handle_irq = up->port.handle_irq; in serial8250_register_8250_port()
1061 if (up->port.set_termios) in serial8250_register_8250_port()
1062 uart->port.set_termios = up->port.set_termios; in serial8250_register_8250_port()
1063 if (up->port.set_ldisc) in serial8250_register_8250_port()
1064 uart->port.set_ldisc = up->port.set_ldisc; in serial8250_register_8250_port()
1065 if (up->port.get_mctrl) in serial8250_register_8250_port()
1066 uart->port.get_mctrl = up->port.get_mctrl; in serial8250_register_8250_port()
1067 if (up->port.set_mctrl) in serial8250_register_8250_port()
1068 uart->port.set_mctrl = up->port.set_mctrl; in serial8250_register_8250_port()
1069 if (up->port.get_divisor) in serial8250_register_8250_port()
1070 uart->port.get_divisor = up->port.get_divisor; in serial8250_register_8250_port()
1071 if (up->port.set_divisor) in serial8250_register_8250_port()
1072 uart->port.set_divisor = up->port.set_divisor; in serial8250_register_8250_port()
1073 if (up->port.startup) in serial8250_register_8250_port()
1074 uart->port.startup = up->port.startup; in serial8250_register_8250_port()
1075 if (up->port.shutdown) in serial8250_register_8250_port()
1076 uart->port.shutdown = up->port.shutdown; in serial8250_register_8250_port()
1077 if (up->port.pm) in serial8250_register_8250_port()
1078 uart->port.pm = up->port.pm; in serial8250_register_8250_port()
1079 if (up->port.handle_break) in serial8250_register_8250_port()
1080 uart->port.handle_break = up->port.handle_break; in serial8250_register_8250_port()
1086 if (uart->port.type != PORT_8250_CIR) { in serial8250_register_8250_port()
1088 serial8250_isa_config(0, &uart->port, in serial8250_register_8250_port()
1093 &uart->port); in serial8250_register_8250_port()
1097 ret = uart->port.line; in serial8250_register_8250_port()
1099 dev_info(uart->port.dev, in serial8250_register_8250_port()
1100 "skipping CIR port at 0x%lx / 0x%llx, IRQ %d\n", in serial8250_register_8250_port()
1101 uart->port.iobase, in serial8250_register_8250_port()
1102 (unsigned long long)uart->port.mapbase, in serial8250_register_8250_port()
1103 uart->port.irq); in serial8250_register_8250_port()
1124 uart->port.dev = NULL; in serial8250_register_8250_port()
1131 * serial8250_unregister_port - remove a 16x50 serial port at runtime
1134 * Remove one serial port. This may not be called from interrupt
1135 * context. We hand the port back to the our control.
1146 spin_lock_irqsave(&uart->port.lock, flags); in serial8250_unregister_port()
1148 spin_unlock_irqrestore(&uart->port.lock, flags); in serial8250_unregister_port()
1151 uart_remove_one_port(&serial8250_reg, &uart->port); in serial8250_unregister_port()
1153 uart->port.flags &= ~UPF_BOOT_AUTOCONF; in serial8250_unregister_port()
1154 uart->port.type = PORT_UNKNOWN; in serial8250_unregister_port()
1155 uart->port.dev = &serial8250_isa_devs->dev; in serial8250_unregister_port()
1158 uart_add_one_port(&serial8250_reg, &uart->port); in serial8250_unregister_port()
1160 uart->port.dev = NULL; in serial8250_unregister_port()