coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
early_serial.c File Reference
#include <arch/io.h>
#include <device/pnp_ops.h>
#include <device/pnp.h>
#include <stdint.h>
#include "fintek.h"
Include dependency graph for early_serial.c:

Go to the source code of this file.

Macros

#define FINTEK_ENTRY_KEY   0x87
 
#define FINTEK_EXIT_KEY   0xAA
 

Functions

void pnp_enter_conf_state (pnp_devfn_t dev)
 
void pnp_exit_conf_state (pnp_devfn_t dev)
 
void fintek_enable_serial (pnp_devfn_t dev, u16 iobase)
 

Macro Definition Documentation

◆ FINTEK_ENTRY_KEY

#define FINTEK_ENTRY_KEY   0x87

Definition at line 28 of file early_serial.c.

◆ FINTEK_EXIT_KEY

#define FINTEK_EXIT_KEY   0xAA

Definition at line 29 of file early_serial.c.

Function Documentation

◆ fintek_enable_serial()

void fintek_enable_serial ( pnp_devfn_t  dev,
u16  iobase 
)

Definition at line 47 of file early_serial.c.

References pnp_enter_conf_state(), pnp_exit_conf_state(), PNP_IDX_IO0, pnp_set_enable(), pnp_set_iobase(), 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:

◆ pnp_enter_conf_state()

void pnp_enter_conf_state ( pnp_devfn_t  dev)

Definition at line 32 of file early_serial.c.

References FINTEK_ENTRY_KEY, and outb().

Here is the call graph for this function:

◆ pnp_exit_conf_state()

void pnp_exit_conf_state ( pnp_devfn_t  dev)

Definition at line 40 of file early_serial.c.

References FINTEK_EXIT_KEY, and outb().

Here is the call graph for this function: