a73b93157f
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
124 lines
2.6 KiB
C
124 lines
2.6 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2008-2009 coresystems GmbH
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2 of
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* the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <console/console.h>
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#include <arch/io.h>
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#include <delay.h>
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#include <ec/acpi/ec.h>
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#include "ec_oem.h"
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int send_ec_oem_command(u8 command)
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{
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int timeout;
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timeout = 0x7ff;
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while ((inb(EC_OEM_SC) & EC_IBF) && --timeout) {
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udelay(10);
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if ((timeout & 0xff) == 0)
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printk(BIOS_SPEW, ".");
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}
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if (!timeout) {
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printk(BIOS_DEBUG, "Timeout while sending OEM command 0x%02x to EC!\n",
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command);
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// return -1;
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}
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outb(command, EC_OEM_SC);
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return 0;
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}
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int send_ec_oem_data(u8 data)
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{
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int timeout;
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timeout = 0x7ff;
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while ((inb(EC_OEM_SC) & EC_IBF) && --timeout) { // wait for IBF = 0
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udelay(10);
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if ((timeout & 0xff) == 0)
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printk(BIOS_SPEW, ".");
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}
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if (!timeout) {
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printk(BIOS_DEBUG, "Timeout while sending OEM data 0x%02x to EC!\n",
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data);
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// return -1;
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}
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outb(data, EC_OEM_DATA);
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return 0;
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}
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int send_ec_oem_data_nowait(u8 data)
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{
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outb(data, EC_OEM_DATA);
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return 0;
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}
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u8 recv_ec_oem_data(void)
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{
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int timeout;
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u8 data;
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timeout = 0x7fff;
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while (--timeout) { // Wait for OBF = 1
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if (inb(EC_OEM_SC) & EC_OBF) {
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break;
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}
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udelay(10);
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if ((timeout & 0xff) == 0)
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printk(BIOS_SPEW, ".");
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}
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if (!timeout) {
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printk(BIOS_DEBUG, "\nTimeout while receiving OEM data from EC!\n");
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// return -1;
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}
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data = inb(EC_OEM_DATA);
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// printk(BIOS_SPEW, "recv_ec_oem_data: 0x%02x\n", data);
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return data;
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}
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u8 ec_oem_read(u8 addr)
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{
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send_ec_oem_command(0x80);
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send_ec_oem_data(addr);
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return recv_ec_oem_data();
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}
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int ec_oem_write(u8 addr, u8 data)
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{
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send_ec_oem_command(0x81);
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send_ec_oem_data(addr);
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return send_ec_oem_data(data);
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}
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int ec_oem_dump_status(void)
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{
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u8 ec_sc = inb(EC_OEM_SC);
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printk(BIOS_DEBUG, "Embedded Controller Status: ");
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if (ec_sc & (1 << 6)) printk(BIOS_DEBUG, "SMI_EVT ");
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if (ec_sc & (1 << 5)) printk(BIOS_DEBUG, "SCI_EVT ");
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if (ec_sc & (1 << 4)) printk(BIOS_DEBUG, "BURST ");
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if (ec_sc & (1 << 3)) printk(BIOS_DEBUG, "CMD ");
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if (ec_sc & (1 << 1)) printk(BIOS_DEBUG, "IBF ");
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if (ec_sc & (1 << 0)) printk(BIOS_DEBUG, "OBF ");
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printk(BIOS_DEBUG, "\n");
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return ec_sc;
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}
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