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Add pnp code and remove pnp inlines.

Browse source 
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@374 f3766cd6-281f-0410-b1cd-43a5c92072e9
This commit is contained in:
Ronald G. Minnich 2007-06-27 19:47:27 +00:00
parent 19278313f5
commit b175ce06ac
3 changed files with 108 additions and 2 deletions
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2
device/Makefile
View file

@ -25,5 +25,5 @@ $(obj)/device/%.o: $(src)/device/%.c
$(Q)$(CC) $(INITCFLAGS) -c $< -o $@
STAGE2_DEVICE_OBJ = device.o device_util.o root_device.o \
pci_device.o pci_ops.o pci_rom.o pnp_device.o
pci_device.o pci_ops.o pci_rom.o pnp_device.o rawpnp.o

98
device/pnp_raw.c Normal file
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@ -0,0 +1,98 @@
/*
* Copyright (C) 2007 Ronald G. Minnich
* Copyright (C) 2007 coresystems GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <types.h>
#include <device/pnp_def.h>
#include <io.h>
/* very low level pnp manipulation intended for stage 0 or 1 */
/**
* rawpnp_enter_ext_funct -- Enter the PNP extended functions,
* i.e. configuration mode
* @param dev The device IO port.
*/
void rawpnp_enter_ext_func_mode(u16 dev)
{
outb(0x87, dev);
outb(0x87, dev);
}
/**
* Exit the PNP extended functions, i.e. configuration mode
* @param dev The device IO port.
*/
void rawpnp_exit_ext_func_mode(u16 dev)
{
outb(0xaa, dev);
}
/**
* Write a pnp configuration register. This is done by writing
* the register number to the port, and the value to the
* port+1
* @param dev The device IO port.
* @param reg The register number
* @param value The new value.
*/
void rawpnp_write_config(u16 dev, u8 reg, u8 value)
{
outb(reg, dev);
outb(value,dev + 1);
}
/**
* Select a logical device. PNP has up to 16 logical devices.
* They are selected by writing the device # to register 7.
* @param dev The device IO port.
* @param which Which device
*/
void rawpnp_set_logical_device(u16 dev, u8 which)
{
rawpnp_write_config(dev, 0x07, which);
}
/**
* Set the enable for the device. The enable is at register 30.
* Setting the low bit enables the device.
* Code must have selected the proper device using
* rawpnp_set_logical_device. If enable is non-zero, device
* is enabled. If enable is zero, device is disabled.
* @param dev The device IO port.
* @param enable non-zero enables the device
*/
void rawpnp_set_enable(u16 dev, int enable)
{
rawpnp_write_config(dev, 0x30, enable ? 0x1 : 0x0);
}
/**
* Set the iobase for the device. The iobase is at registers 'index'
* and 'index + 1', since these are 8 bit registers and iobase is 16 bits.
* Code must have selected the proper device using
* rawpnp_set_logical_device.
* @param dev The device IO port.
* @param iobase The 16 bit iobase
*/
void rawpnp_set_iobase(u16 dev, u8 index, u16 iobase)
{
/* Index == 0x60 or 0x62 */
rawpnp_write_config(dev, index + 0, (iobase >> 8) & 0xff);
rawpnp_write_config(dev, index + 1, iobase & 0xff);
}

10
include/device/pnp.h
View file

@ -1,5 +1,5 @@
/*
* Copyright (C) FIXME
* Copyright (C) 2007 Ronald G. Minnich <rminnich@gmail.com>
* Copyright (C) 2007 coresystems GmbH
*
* This program is free software; you can redistribute it and/or modify
@ -24,6 +24,14 @@
#include <device/device.h>
#include <device/pnp_def.h>
/* very low level pnp manipulation intended for stage 0 or 1 */
void rawpnp_enter_ext_func_mode(u16 dev);
void rawpnp_exit_ext_func_mode(u16 dev);
void rawpnp_write_config(u16 dev, u8 reg, u8 value);
void rawpnp_set_logical_device(u16 dev, u8 which);
void rawpnp_set_enable(u16 dev, int enable);
void rawpnp_set_iobase(u16 dev, u8 index, u16 iobase);
/* Primitive pnp resource manipulation */
void pnp_write_config(struct device * dev, u8 reg, u8 value);
u8 pnp_read_config(struct device * dev, u8 reg);