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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <device/device.h>
#include <console/console.h>
#include <drivers/intel/gma/int15.h>
#include <ec/acpi/ec.h>
#include <southbridge/intel/common/gpio.h>
#include <string.h>
#include <smbios.h>
#include "ec.h"
#include <arch/acpi.h>
static u8 mainboard_fill_ec_version(char *buf, u8 buf_len)
{
u8 i, c;
char str[16 + 1]; /* 16 ASCII chars + \0 */
/* Build ID */
for (i = 0; i < 8; i++) {
c = ec_mm_read(0xf0 + i);
if (c < 0x20 || c > 0x7f) {
i = snprintf(str, sizeof(str), "*INVALID");
break;
}
str[i] = c;
}
i = MIN(buf_len, i);
memcpy(buf, str, i);
return i;
}
static void mainboard_smbios_strings(
struct device *dev, struct smbios_type11 *t)
{
char tpec[] = "IBM ThinkPad Embedded Controller -[ ]-";
u16 fwvh, fwvl;
mainboard_fill_ec_version(tpec + 35, 17);
t->count = smbios_add_string(t->eos, tpec);
/* Apparently byteswapped compared to H8 */
fwvh = ec_mm_read(0xe8);
fwvl = ec_mm_read(0xe9);
printk(BIOS_INFO, "EC Firmware ID %.54s, Version %d.%d%d%c\n", tpec,
fwvh >> 4, fwvh & 0x0f, fwvl >> 4, 0x41 + (fwvl & 0xf));
}
static void mainboard_enable(struct device *dev)
{
dev->ops->get_smbios_strings = mainboard_smbios_strings,
install_intel_vga_int15_handler(
GMA_INT15_ACTIVE_LFP_INT_LVDS,
GMA_INT15_PANEL_FIT_DEFAULT,
GMA_INT15_BOOT_DISPLAY_DEFAULT,
0);
if (!acpi_is_wakeup_s3())
lenovo_s230u_ec_init();
}
struct chip_operations mainboard_ops = {
.enable_dev = mainboard_enable,
};
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