coreboot-kgpe-d16/src/ec/acpi/ec.c
Patrick Georgi b890a1228d Remove address from GPLv2 headers
As per discussion with lawyers[tm], it's not a good idea to
shorten the license header too much - not for legal reasons
but because there are tools that look for them, and giving
them a standard pattern simplifies things.

However, we got confirmation that we don't have to update
every file ever added to coreboot whenever the FSF gets a
new lease, but can drop the address instead.

util/kconfig is excluded because that's imported code that
we may want to synchronize every now and then.

$ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *MA[, ]*02110-1301[, ]*USA:Foundation, Inc.:" {} +
$ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA:Foundation, Inc.:" {} +
$ find * -type f -exec sed -i "s:Foundation, Inc., 59 Temple Place[-, ]*Suite 330, Boston, MA *02111-1307[, ]*USA:Foundation, Inc.:" {} +
$ find * -type f -exec sed -i "s:Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.:Foundation, Inc.:" {} +
$ find * -type f
	-a \! -name \*.patch \
	-a \! -name \*_shipped \
	-a \! -name LICENSE_GPL \
	-a \! -name LGPL.txt \
	-a \! -name COPYING \
	-a \! -name DISCLAIMER \
	-exec sed -i "/Foundation, Inc./ N;s:Foundation, Inc.* USA\.* *:Foundation, Inc. :;s:Foundation, Inc. $:Foundation, Inc.:" {} +

Change-Id: Icc968a5a5f3a5df8d32b940f9cdb35350654bef9
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/9233
Tested-by: build bot (Jenkins)
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
2015-05-21 20:50:25 +02:00

163 lines
2.9 KiB
C

/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008-2009 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; version 2 of
* the License.
*
* 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.
*/
#include <console/console.h>
#include <device/device.h>
#include <arch/io.h>
#include <delay.h>
#include "ec.h"
#ifdef __PRE_RAM__
static const int ec_cmd_reg = EC_SC;
static const int ec_data_reg = EC_DATA;
#else
static int ec_cmd_reg = EC_SC;
static int ec_data_reg = EC_DATA;
#endif
int send_ec_command(u8 command)
{
int timeout;
timeout = 0x7ff;
while ((inb(ec_cmd_reg) & EC_IBF) && --timeout) {
udelay(10);
if ((timeout & 0xff) == 0)
printk(BIOS_SPEW, ".");
}
if (!timeout) {
printk(BIOS_DEBUG, "Timeout while sending command 0x%02x to EC!\n",
command);
// return -1;
}
udelay(10);
outb(command, ec_cmd_reg);
return 0;
}
int send_ec_data(u8 data)
{
int timeout;
timeout = 0x7ff;
while ((inb(ec_cmd_reg) & EC_IBF) && --timeout) { // wait for IBF = 0
udelay(10);
if ((timeout & 0xff) == 0)
printk(BIOS_SPEW, ".");
}
if (!timeout) {
printk(BIOS_DEBUG, "Timeout while sending data 0x%02x to EC!\n",
data);
// return -1;
}
udelay(10);
outb(data, ec_data_reg);
return 0;
}
int send_ec_data_nowait(u8 data)
{
outb(data, ec_data_reg);
return 0;
}
u8 recv_ec_data(void)
{
int timeout;
u8 data;
timeout = 0x7fff;
while (--timeout) { // Wait for OBF = 1
if (inb(ec_cmd_reg) & EC_OBF) {
break;
}
udelay(10);
if ((timeout & 0xff) == 0)
printk(BIOS_SPEW, ".");
}
if (!timeout) {
printk(BIOS_DEBUG, "\nTimeout while receiving data from EC!\n");
// return -1;
}
udelay(10);
data = inb(ec_data_reg);
printk(BIOS_SPEW, "recv_ec_data: 0x%02x\n", data);
return data;
}
u8 ec_read(u8 addr)
{
send_ec_command(0x80);
send_ec_data(addr);
return recv_ec_data();
}
int ec_write(u8 addr, u8 data)
{
send_ec_command(0x81);
send_ec_data(addr);
return send_ec_data(data);
}
u8 ec_query(void)
{
send_ec_command(0x84);
return recv_ec_data();
}
void ec_set_bit(u8 addr, u8 bit)
{
ec_write(addr, ec_read(addr) | (1 << bit));
}
void ec_clr_bit(u8 addr, u8 bit)
{
ec_write(addr, ec_read(addr) & ~(1 << bit));
}
#ifndef __PRE_RAM__
void ec_set_ports(u16 cmd_reg, u16 data_reg)
{
ec_cmd_reg = cmd_reg;
ec_data_reg = data_reg;
}
#endif
#if !defined(__SMM__) && !defined(__PRE_RAM__)
struct chip_operations ec_acpi_ops = {
CHIP_NAME("ACPI Embedded Controller")
};
#endif