com.h File Reference

#include <stdint.h>

Include dependency graph for com.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Enumerations
enum	com_port_t {   COM1 = 0x3F8 , COM2 = 0x2F8 , COM3 = 0x3E8 , COM4 = 0x2E8 ,   COM5 = 0x5F8 , COM6 = 0x4F8 , COM7 = 0x5E8 , COM8 = 0x48E }
enum	com_reg_t {   COM_REG_RECEIVE = 0 , COM_REG_TRANSMIT = 0 , COM_REG_INTERRUPT_ENABLE = 1 , COM_REG_BAUD_LOW = 0 ,   COM_REG_BAUD_HIGH = 1 , COM_REG_INTERRUPT_ID = 2 , COM_REG_FIFO_CONTROL = 2 , COM_REG_LINE_CONTROL = 3 ,   COM_REG_MODEM_CONTROL = 4 , COM_REG_LINE_STATUS = 5 , COM_REG_MODEM_STATUS = 6 , COM_REG_SCRATCH = 7 }
enum	com_line_control_t {   COM_LINE_SIZE_5 = 0 , COM_LINE_SIZE_6 = 1 , COM_LINE_SIZE_7 = 2 , COM_LINE_SIZE_8 = 3 ,   COM_LINE_DLAB = 1 << 7 }
enum	com_modem_control_t {   COM_MODEM_DTR = 1 << 0 , COM_MODEM_RTS = 1 << 1 , COM_MODEM_OUT1 = 1 << 2 , COM_MODEM_OUT2 = 1 << 3 ,   COM_MODEM_LOOP = 1 << 4 }
enum	com_line_status_t { COM_LINE_READ_READY = 1 << 0 , COM_LINE_WRITE_READY = 1 << 5 }

Functions
void	com_init (com_port_t port)
uint8_t	com_read (com_port_t port)
void	com_write (com_port_t port, uint8_t value)
uint8_t	com_reg_read (com_port_t port, com_reg_t reg)
void	com_reg_write (com_port_t port, com_reg_t reg, uint8_t value)

Enumeration Type Documentation

com_port_t

enum com_port_t

Enumerator
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8

Definition at line 5 of file com.h.

com_reg_t

enum com_reg_t

Enumerator
COM_REG_RECEIVE
COM_REG_TRANSMIT
COM_REG_INTERRUPT_ENABLE
COM_REG_BAUD_LOW
COM_REG_BAUD_HIGH
COM_REG_INTERRUPT_ID
COM_REG_FIFO_CONTROL
COM_REG_LINE_CONTROL
COM_REG_MODEM_CONTROL
COM_REG_LINE_STATUS
COM_REG_MODEM_STATUS
COM_REG_SCRATCH

Definition at line 17 of file com.h.

com_line_control_t

enum com_line_control_t

Enumerator
COM_LINE_SIZE_5
COM_LINE_SIZE_6
COM_LINE_SIZE_7
COM_LINE_SIZE_8
COM_LINE_DLAB

Definition at line 33 of file com.h.

com_modem_control_t

enum com_modem_control_t

Enumerator
COM_MODEM_DTR
COM_MODEM_RTS
COM_MODEM_OUT1
COM_MODEM_OUT2
COM_MODEM_LOOP

Definition at line 42 of file com.h.

com_line_status_t

enum com_line_status_t

Enumerator
COM_LINE_READ_READY
COM_LINE_WRITE_READY

Definition at line 51 of file com.h.

Function Documentation

com_init()

void com_init

(

com_port_t

port

)

Definition at line 4 of file com.c.

Here is the call graph for this function:

Here is the caller graph for this function:

com_read()

uint8_t com_read

(

com_port_t

port

)

Definition at line 14 of file com.c.

Here is the call graph for this function:

com_write()

void com_write	(	com_port_t	port,
		uint8_t	value
	)

Definition at line 23 of file com.c.

Here is the call graph for this function:

Here is the caller graph for this function:

com_reg_read()

uint8_t com_reg_read	(	com_port_t	port,
		com_reg_t	reg
	)

Definition at line 32 of file com.c.

Here is the call graph for this function:

Here is the caller graph for this function:

com_reg_write()

void com_reg_write	(	com_port_t	port,
		com_reg_t	reg,
		uint8_t	value
	)

Definition at line 37 of file com.c.

Here is the call graph for this function:

Here is the caller graph for this function: