fwupd/plugins/superio/fu-superio-it85-device.c
2021-08-24 11:18:40 -05:00

83 lines
2.1 KiB
C

/*
* Copyright (C) 2018 Richard Hughes <richard@hughsie.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#include "config.h"
#include <fwupdplugin.h>
#include "fu-superio-common.h"
#include "fu-superio-it85-device.h"
struct _FuSuperioIt85Device {
FuSuperioDevice parent_instance;
};
G_DEFINE_TYPE(FuSuperioIt85Device, fu_superio_it85_device, FU_TYPE_SUPERIO_DEVICE)
static gchar *
fu_superio_it85_device_get_str(FuSuperioDevice *self, guint8 idx, GError **error)
{
GString *str = g_string_new(NULL);
if (!fu_superio_device_ec_write_cmd(self, idx, error))
return NULL;
for (guint i = 0; i < 0xff; i++) {
guint8 c = 0;
if (!fu_superio_device_ec_read_data(self, &c, error))
return NULL;
if (c == '$')
break;
g_string_append_c(str, c);
}
return g_string_free(str, FALSE);
}
static gboolean
fu_superio_it85_device_setup(FuDevice *device, GError **error)
{
FuSuperioDevice *self = FU_SUPERIO_DEVICE(device);
guint8 size_tmp = 0;
g_autofree gchar *name = NULL;
g_autofree gchar *version = NULL;
/* FuSuperioDevice->setup */
if (!FU_DEVICE_CLASS(fu_superio_it85_device_parent_class)->setup(device, error))
return FALSE;
/* get EC size */
if (!fu_superio_device_reg_read(self, 0xe5, &size_tmp, error)) {
g_prefix_error(error, "failed to get EC size: ");
return FALSE;
}
fu_device_set_firmware_size(FU_DEVICE(self), ((guint32)size_tmp) << 10);
/* get EC strings */
name = fu_superio_it85_device_get_str(self, SIO_CMD_EC_GET_NAME_STR, error);
if (name == NULL) {
g_prefix_error(error, "failed to get EC name: ");
return FALSE;
}
fu_device_set_name(FU_DEVICE(self), name);
version = fu_superio_it85_device_get_str(self, SIO_CMD_EC_GET_VERSION_STR, error);
if (version == NULL) {
g_prefix_error(error, "failed to get EC version: ");
return FALSE;
}
fu_device_set_version(FU_DEVICE(self), version);
return TRUE;
}
static void
fu_superio_it85_device_init(FuSuperioIt85Device *self)
{
}
static void
fu_superio_it85_device_class_init(FuSuperioIt85DeviceClass *klass)
{
FuDeviceClass *klass_device = FU_DEVICE_CLASS(klass);
klass_device->setup = fu_superio_it85_device_setup;
}