ns16550.h File Reference

16550-compatible UART More...

#include <stdint.h>
#include <ipxe/io.h>

Go to the source code of this file.

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
	FILE_SECBOOT (PERMITTED)
static	__attribute__ ((always_inline)) void ns16550_write(struct ns16550_uart *ns16550
	Write to UART register.

Variables
static unsigned int	address
static unsigned int uint8_t	data

Detailed Description

16550-compatible UART

Definition in file ns16550.h.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER_OR_UBDL

)

FILE_SECBOOT()

FILE_SECBOOT

(

PERMITTED

)

__attribute__()

__attribute__ ( (always_inline) )

inlinestatic

Write to UART register.

Read from UART register.

Parameters

ns16550	16550 UART
address	Register address
data	Data
ns16550	16550 UART
address	Register address

Return values

data

Data

Variable Documentation

address

unsigned int address

Initial value:

{
 
        return ioread8 ( ns16550->base + ( address << ns16550->shift ) )

Definition at line 24 of file ns16550.h.

data

unsigned int uint8_t data

Initial value:

{
 
        iowrite8 ( data, ( ns16550->base + ( address << ns16550->shift ) ) )

Definition at line 25 of file ns16550.h.