fwupd/plugins/synaptics-mst/fu-synaptics-mst-firmware.c

121 lines
2.9 KiB
C

/*
* Copyright (C) 2021 Richard Hughes <richard@hughsie.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#include "config.h"
#include <fwupdplugin.h>
#include "fu-synaptics-mst-connection.h"
#include "fu-synaptics-mst-firmware.h"
struct _FuSynapticsMstFirmware {
FuFirmwareClass parent_instance;
guint16 board_id;
};
G_DEFINE_TYPE(FuSynapticsMstFirmware, fu_synaptics_mst_firmware, FU_TYPE_FIRMWARE)
guint16
fu_synaptics_mst_firmware_get_board_id(FuSynapticsMstFirmware *self)
{
g_return_val_if_fail(FU_IS_SYNAPTICS_MST_FIRMWARE(self), 0);
return self->board_id;
}
static void
fu_synaptics_mst_firmware_export(FuFirmware *firmware,
FuFirmwareExportFlags flags,
XbBuilderNode *bn)
{
FuSynapticsMstFirmware *self = FU_SYNAPTICS_MST_FIRMWARE(firmware);
fu_xmlb_builder_insert_kx(bn, "board_id", self->board_id);
}
static gboolean
fu_synaptics_mst_firmware_parse(FuFirmware *firmware,
GBytes *fw,
gsize offset,
FwupdInstallFlags flags,
GError **error)
{
FuSynapticsMstFirmware *self = FU_SYNAPTICS_MST_FIRMWARE(firmware);
const guint8 *buf;
gsize bufsz;
buf = g_bytes_get_data(fw, &bufsz);
if (!fu_memread_uint16_safe(buf,
bufsz,
ADDR_CUSTOMER_ID,
&self->board_id,
G_BIG_ENDIAN,
error))
return FALSE;
/* success */
return TRUE;
}
static GBytes *
fu_synaptics_mst_firmware_write(FuFirmware *firmware, GError **error)
{
g_autoptr(GByteArray) buf = g_byte_array_new();
g_autoptr(GBytes) blob = NULL;
/* assumed header */
fu_byte_array_set_size(buf, ADDR_CUSTOMER_ID + sizeof(guint16), 0x00);
if (!fu_memwrite_uint16_safe(buf->data,
buf->len,
ADDR_CUSTOMER_ID,
fu_firmware_get_idx(firmware),
G_BIG_ENDIAN,
error))
return NULL;
/* payload */
blob = fu_firmware_get_bytes_with_patches(firmware, error);
if (blob == NULL)
return NULL;
fu_byte_array_append_bytes(buf, blob);
/* success */
return g_byte_array_free_to_bytes(g_steal_pointer(&buf));
}
static gboolean
fu_synaptics_rmi_firmware_build(FuFirmware *firmware, XbNode *n, GError **error)
{
FuSynapticsMstFirmware *self = FU_SYNAPTICS_MST_FIRMWARE(firmware);
guint64 tmp;
/* optional properties */
tmp = xb_node_query_text_as_uint(n, "board_id", NULL);
if (tmp != G_MAXUINT64)
self->board_id = tmp;
/* success */
return TRUE;
}
static void
fu_synaptics_mst_firmware_init(FuSynapticsMstFirmware *self)
{
}
static void
fu_synaptics_mst_firmware_class_init(FuSynapticsMstFirmwareClass *klass)
{
FuFirmwareClass *klass_firmware = FU_FIRMWARE_CLASS(klass);
klass_firmware->parse = fu_synaptics_mst_firmware_parse;
klass_firmware->export = fu_synaptics_mst_firmware_export;
klass_firmware->write = fu_synaptics_mst_firmware_write;
klass_firmware->build = fu_synaptics_rmi_firmware_build;
}
FuFirmware *
fu_synaptics_mst_firmware_new(void)
{
return FU_FIRMWARE(g_object_new(FU_TYPE_SYNAPTICS_MST_FIRMWARE, NULL));
}