RTEMS 6.1-rc5
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Functions | Variables
ns16550-context.c File Reference
#include <stdlib.h>
#include <rtems/bspIo.h>
#include <bsp.h>
#include <libchip/ns16550.h>
#include <libchip/ns16550_p.h>

Functions

bool ns16550_probe (rtems_termios_device_context *base)
 
void ns16550_polled_putchar (rtems_termios_device_context *base, char out)
 Polled write for NS16550.
 
int ns16550_polled_getchar (rtems_termios_device_context *base)
 

Variables

const rtems_termios_device_flow ns16550_flow_rtscts
 
const rtems_termios_device_flow ns16550_flow_dtrcts
 
const rtems_termios_device_handler ns16550_handler_interrupt
 
const rtems_termios_device_handler ns16550_handler_polled
 
const rtems_termios_device_handler ns16550_handler_task
 

Detailed Description

This file contains the TTY driver for the National Semiconductor NS16550.

This part is widely cloned and second sourced. It is found in a number of "Super IO" controllers.

This driver uses the termios pseudo driver.

Variable Documentation

◆ ns16550_flow_dtrcts

const rtems_termios_device_flow ns16550_flow_dtrcts
Initial value:
= {
.stop_remote_tx = ns16550_negate_DTR,
.start_remote_tx = ns16550_assert_DTR
}

◆ ns16550_flow_rtscts

const rtems_termios_device_flow ns16550_flow_rtscts
Initial value:
= {
.stop_remote_tx = ns16550_negate_RTS,
.start_remote_tx = ns16550_assert_RTS
}

◆ ns16550_handler_interrupt

const rtems_termios_device_handler ns16550_handler_interrupt
Initial value:
= {
.first_open = ns16550_open,
.last_close = ns16550_close,
.poll_read = NULL,
.write = ns16550_write_support_int,
.set_attributes = ns16550_set_attributes,
.mode = TERMIOS_IRQ_DRIVEN
}

◆ ns16550_handler_polled

const rtems_termios_device_handler ns16550_handler_polled
Initial value:
= {
.first_open = ns16550_open,
.last_close = ns16550_close,
.poll_read = ns16550_polled_getchar,
.write = ns16550_write_support_polled,
.set_attributes = ns16550_set_attributes,
.mode = TERMIOS_POLLED
}

◆ ns16550_handler_task

const rtems_termios_device_handler ns16550_handler_task
Initial value:
= {
.first_open = ns16550_open,
.last_close = ns16550_close,
.poll_read = ns16550_read_task,
.write = ns16550_write_support_task,
.set_attributes = ns16550_set_attributes,
.mode = TERMIOS_TASK_DRIVEN
}