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/*
* This file is part of the coreboot project.
*
* Copyright 2018 Google LLC
*
* 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.
*/
#include <arch/acpi_device.h>
#include <arch/acpigen.h>
#include <console/console.h>
#include <device/device.h>
#include <device/path.h>
#include <stdint.h>
#include <string.h>
#include "chip.h"
#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
#define ADAU7002_ACPI_NAME "ADAU"
#define ADAU7002_ACPI_HID "ADAU7002"
static void adau7002_fill_ssdt(struct device *dev)
{
struct drivers_generic_adau7002_config *config;
struct acpi_dp *dp;
if (!dev || !dev->enabled)
return;
const char *scope = acpi_device_scope(dev);
const char *name = acpi_device_name(dev);
if (!scope || !name)
return;
/* Device */
acpigen_write_scope(scope);
acpigen_write_device(name);
acpigen_write_name_string("_HID", ADAU7002_ACPI_HID);
acpigen_write_name_integer("_UID", 0);
acpigen_write_name_string("_DDN", dev->chip_ops->name);
acpigen_write_STA(acpi_device_status(dev));
/* _DSD for devicetree properties */
config = dev->chip_info;
dp = acpi_dp_new_table("_DSD");
acpi_dp_add_integer(dp, "wakeup-delay-ms", config->wakeup_delay);
acpi_dp_write(dp);
acpigen_pop_len(); /* Device */
acpigen_pop_len(); /* Scope */
printk(BIOS_INFO, "%s: %s\n", acpi_device_path(dev),
dev->chip_ops->name);
}
static const char *adau7002_acpi_name(const struct device *dev)
{
return ADAU7002_ACPI_NAME;
}
#endif
static struct device_operations adau7002_ops = {
.read_resources = DEVICE_NOOP,
.set_resources = DEVICE_NOOP,
.enable_resources = DEVICE_NOOP,
#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
.acpi_name = &adau7002_acpi_name,
.acpi_fill_ssdt_generator = &adau7002_fill_ssdt,
#endif
};
static void adau7002_enable(struct device *dev)
{
dev->ops = &adau7002_ops;
}
struct chip_operations drivers_generic_adau7002_ops = {
CHIP_NAME("Analog Digital DMIC")
.enable_dev = &adau7002_enable
};
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