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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2019 Ahmad Fatoum
*/
#include <common.h>
#include <init.h>
#include <acpi.h>
static const char *profiles[] = {
"Unspecified",
"Desktop",
"Mobile",
"Workstation",
"Enterprise Server",
"SOHO Server",
"Applicance PC",
"Performance Server",
"Tablet",
};
static int acpi_test_probe(struct device_d *dev)
{
const char *profile = "reserved";
u8 *sdt;
u8 profileno;
dev_dbg(dev, "driver initializing...\n");
sdt = (u8 __force *)dev_request_mem_region_by_name(dev, "SDT");
if (IS_ERR(sdt)) {
dev_err(dev, "no SDT resource available: %s\n", strerrorp(sdt));
return PTR_ERR(sdt);
}
dev_dbg(dev, "SDT is at 0x%p\n", sdt);
profileno = sdt[45];
if (profileno < ARRAY_SIZE(profiles))
profile = profiles[profileno];
dev_info(dev, "PM profile is for '%s'\n", profile);
return 0;
}
static void acpi_test_remove(struct device_d *dev)
{
dev_info(dev, "FADT driver removed\n");
}
static struct acpi_driver acpi_test_driver = {
.signature = "FACP",
.driver = {
.name = "acpi-test",
.probe = acpi_test_probe,
.remove = acpi_test_remove,
}
};
device_acpi_driver(acpi_test_driver);
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