fwupd/plugins/superio/fu-plugin-superio.c
Richard Hughes d3d7cfa816 Add plugin quirk keys earlier in the startup process
This allows creating the silo when starting the engine with custom
plugin keys such as WacomI2cFlashBaseAddr.

If we move the plugin initialization earlier then we don't get the
HwID matches, so we really do have to split this into a 4-stage startup,
e.g. ->load(), ->init(), ->startup() and ->coldplug().
2022-05-09 11:13:52 +01:00

129 lines
3.4 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_GTYPE "SuperioGType"
static gboolean
fu_plugin_superio_coldplug_chipset(FuPlugin *plugin, const gchar *guid, GError **error)
{
FuContext *ctx = fu_plugin_get_context(plugin);
const gchar *dmi_vendor;
const gchar *chipset;
GType custom_gtype;
g_autoptr(FuSuperioDevice) dev = NULL;
g_autoptr(FuDeviceLocker) locker = NULL;
/* get chipset */
chipset = fu_context_lookup_quirk_by_id(ctx, guid, FU_QUIRKS_SUPERIO_GTYPE);
if (chipset == NULL)
return TRUE;
/* create IT89xx, IT89xx or IT5570 */
custom_gtype = g_type_from_name(chipset);
if (custom_gtype == G_TYPE_INVALID) {
g_set_error(error,
G_IO_ERROR,
G_IO_ERROR_NOT_SUPPORTED,
"SuperIO GType %s unsupported",
chipset);
return FALSE;
}
dev = g_object_new(custom_gtype,
"device-file",
"/dev/port",
"chipset",
chipset,
"context",
ctx,
NULL);
/* add this so we can attach all the other quirks */
fu_device_add_instance_str(FU_DEVICE(dev), "GUID", guid);
if (!fu_device_build_instance_id(FU_DEVICE(dev), error, "SUPERIO", "GUID", NULL))
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;
}
static void
fu_plugin_superio_init(FuPlugin *plugin)
{
fu_plugin_add_device_gtype(plugin, FU_TYPE_EC_IT55_DEVICE);
fu_plugin_add_device_gtype(plugin, FU_TYPE_SUPERIO_IT85_DEVICE);
fu_plugin_add_device_gtype(plugin, FU_TYPE_SUPERIO_IT89_DEVICE);
fu_plugin_add_rule(plugin, FU_PLUGIN_RULE_METADATA_SOURCE, "linux_lockdown");
}
static void
fu_plugin_superio_load(FuContext *ctx)
{
fu_context_add_quirk_key(ctx, "SuperioGType");
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");
}
static gboolean
fu_plugin_superio_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 *guid = g_ptr_array_index(hwids, i);
if (!fu_plugin_superio_coldplug_chipset(plugin, guid, error))
return FALSE;
}
return TRUE;
}
void
fu_plugin_init_vfuncs(FuPluginVfuncs *vfuncs)
{
vfuncs->build_hash = FU_BUILD_HASH;
vfuncs->load = fu_plugin_superio_load;
vfuncs->init = fu_plugin_superio_init;
vfuncs->coldplug = fu_plugin_superio_coldplug;
}