fwupd/plugins/superio/fu-plugin-superio.c
2021-08-24 11:18:40 -05:00

124 lines
3.2 KiB
C

/*
* Copyright (C) 2018 Richard Hughes <richard@hughsie.com>
* Copyright (C) 2021, TUXEDO Computers GmbH
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#include "config.h"
#include <fwupdplugin.h>
#include "fu-superio-it55-device.h"
#include "fu-superio-it85-device.h"
#include "fu-superio-it89-device.h"
#define FU_QUIRKS_SUPERIO_CHIPSETS "SuperioChipsets"
static gboolean
fu_plugin_superio_coldplug_chipset(FuPlugin *plugin, const gchar *chipset, GError **error)
{
FuContext *ctx = fu_plugin_get_context(plugin);
const gchar *dmi_vendor;
g_autoptr(FuSuperioDevice) dev = NULL;
g_autoptr(FuDeviceLocker) locker = NULL;
/* create IT89xx, IT89xx or IT5570 */
if (g_strcmp0(chipset, "IT8587") == 0) {
dev = g_object_new(FU_TYPE_SUPERIO_IT85_DEVICE,
"device-file",
"/dev/port",
"chipset",
chipset,
"context",
ctx,
NULL);
} else if (g_strcmp0(chipset, "IT8987") == 0) {
dev = g_object_new(FU_TYPE_SUPERIO_IT89_DEVICE,
"device-file",
"/dev/port",
"chipset",
chipset,
"context",
ctx,
NULL);
} else if (g_strcmp0(chipset, "IT5570") == 0) {
dev = g_object_new(FU_TYPE_EC_IT55_DEVICE,
"device-file",
"/dev/port",
"chipset",
chipset,
"context",
ctx,
NULL);
} else {
g_set_error(error,
G_IO_ERROR,
G_IO_ERROR_NOT_SUPPORTED,
"SuperIO chip %s has unsupported SuperioId",
chipset);
return FALSE;
}
/* set ID and ports via quirks */
if (!fu_device_probe(FU_DEVICE(dev), error))
return FALSE;
/* set vendor ID as the motherboard vendor */
dmi_vendor = fu_context_get_hwid_value(ctx, FU_HWIDS_KEY_BASEBOARD_MANUFACTURER);
if (dmi_vendor != NULL) {
g_autofree gchar *vendor_id = g_strdup_printf("DMI:%s", dmi_vendor);
fu_device_add_vendor_id(FU_DEVICE(dev), vendor_id);
}
/* unlock */
locker = fu_device_locker_new(dev, error);
if (locker == NULL)
return FALSE;
fu_plugin_device_add(plugin, FU_DEVICE(dev));
return TRUE;
}
void
fu_plugin_init(FuPlugin *plugin)
{
FuContext *ctx = fu_plugin_get_context(plugin);
fu_plugin_set_build_hash(plugin, FU_BUILD_HASH);
fu_plugin_add_rule(plugin, FU_PLUGIN_RULE_METADATA_SOURCE, "linux_lockdown");
fu_context_add_quirk_key(ctx, "SuperioChipsets");
fu_context_add_quirk_key(ctx, "SuperioId");
fu_context_add_quirk_key(ctx, "SuperioPort");
fu_context_add_quirk_key(ctx, "SuperioControlPort");
fu_context_add_quirk_key(ctx, "SuperioDataPort");
fu_context_add_quirk_key(ctx, "SuperioTimeout");
fu_context_add_quirk_key(ctx, "SuperioAutoloadAction");
}
gboolean
fu_plugin_coldplug(FuPlugin *plugin, GError **error)
{
FuContext *ctx = fu_plugin_get_context(plugin);
GPtrArray *hwids;
if (fu_common_kernel_locked_down()) {
g_set_error_literal(error,
FWUPD_ERROR,
FWUPD_ERROR_NOT_SUPPORTED,
"not supported when kernel locked down");
return FALSE;
}
hwids = fu_context_get_hwid_guids(ctx);
for (guint i = 0; i < hwids->len; i++) {
const gchar *tmp;
const gchar *guid = g_ptr_array_index(hwids, i);
tmp = fu_context_lookup_quirk_by_id(ctx, guid, FU_QUIRKS_SUPERIO_CHIPSETS);
if (tmp == NULL)
continue;
if (!fu_plugin_superio_coldplug_chipset(plugin, tmp, error))
return FALSE;
}
return TRUE;
}