early_serial.c File Reference

#include <arch/io.h>
#include <device/pnp_ops.h>
#include <device/pnp_def.h>
#include <stdint.h>
#include "smscsuperio.h"

Include dependency graph for early_serial.c:

Go to the source code of this file.

Macros
#define	SMSC_ENTRY_KEY   0x55
#define	SMSC_EXIT_KEY   0xAA

Functions
static void	pnp_enter_conf_state (pnp_devfn_t dev)
static void	pnp_exit_conf_state (pnp_devfn_t dev)
void	smscsuperio_enable_serial (pnp_devfn_t dev, u16 iobase)
	Enable the specified serial port. More...

Macro Definition Documentation

SMSC_ENTRY_KEY

#define SMSC_ENTRY_KEY   0x55

Definition at line 10 of file early_serial.c.

SMSC_EXIT_KEY

#define SMSC_EXIT_KEY   0xAA

Definition at line 11 of file early_serial.c.

Function Documentation

pnp_enter_conf_state()

static void pnp_enter_conf_state ( pnp_devfn_t  dev )

static

Definition at line 14 of file early_serial.c.

References outb(), and SMSC_ENTRY_KEY.

Here is the call graph for this function:

pnp_exit_conf_state()

static void pnp_exit_conf_state ( pnp_devfn_t  dev )

static

Definition at line 21 of file early_serial.c.

References outb(), and SMSC_EXIT_KEY.

Here is the call graph for this function:

smscsuperio_enable_serial()

void smscsuperio_enable_serial	(	pnp_devfn_t	dev,
		u16	iobase
	)

Enable the specified serial port.

Parameters

dev	The device to use.
iobase	The I/O base of the serial port (usually 0x3f8/0x2f8).

Definition at line 33 of file early_serial.c.

References pnp_enter_conf_state(), pnp_exit_conf_state(), PNP_IDX_IO0, PNP_IDX_IRQ0, pnp_set_enable(), pnp_set_iobase(), pnp_set_irq(), and pnp_set_logical_device().

Referenced by bootblock_mainboard_early_init().

Here is the call graph for this function:

Here is the caller graph for this function: