fwupd/plugins/wacom-usb/fu-wac-common.c
2019-02-12 10:16:42 -06:00

87 lines
2.5 KiB
C

/*
* Copyright (C) 2018 Richard Hughes <richard@hughsie.com>
*
* SPDX-License-Identifier: LGPL-2.1+
*/
#include "config.h"
#include <string.h>
#include "fu-common.h"
#include "fu-wac-common.h"
guint32
fu_wac_calculate_checksum32le (const guint8 *data, gsize len)
{
guint32 csum = 0x0;
g_return_val_if_fail (len % 4 == 0, 0xff);
for (guint i = 0; i < len; i += 4) {
guint32 tmp;
memcpy (&tmp, &data[i], sizeof(guint32));
csum += GUINT32_FROM_LE (tmp);
}
return GUINT32_TO_LE (csum);
}
guint32
fu_wac_calculate_checksum32le_bytes (GBytes *blob)
{
gsize len = 0;
const guint8 *data = g_bytes_get_data (blob, &len);
return fu_wac_calculate_checksum32le (data, len);
}
const gchar *
fu_wac_report_id_to_string (guint8 report_id)
{
if (report_id == FU_WAC_REPORT_ID_FW_DESCRIPTOR)
return "FwDescriptor";
if (report_id == FU_WAC_REPORT_ID_SWITCH_TO_FLASH_LOADER)
return "SwitchToFlashLoader";
if (report_id == FU_WAC_REPORT_ID_QUIT_AND_RESET)
return "QuitAndReset";
if (report_id == FU_WAC_REPORT_ID_READ_BLOCK_DATA)
return "ReadBlockData";
if (report_id == FU_WAC_REPORT_ID_WRITE_BLOCK)
return "WriteBlock";
if (report_id == FU_WAC_REPORT_ID_ERASE_BLOCK)
return "EraseBlock";
if (report_id == FU_WAC_REPORT_ID_SET_READ_ADDRESS)
return "SetReadAddress";
if (report_id == FU_WAC_REPORT_ID_GET_STATUS)
return "GetStatus";
if (report_id == FU_WAC_REPORT_ID_UPDATE_RESET)
return "UpdateReset";
if (report_id == FU_WAC_REPORT_ID_WRITE_WORD)
return "WriteWord";
if (report_id == FU_WAC_REPORT_ID_GET_PARAMETERS)
return "GetParameters";
if (report_id == FU_WAC_REPORT_ID_GET_FLASH_DESCRIPTOR)
return "GetFlashDescriptor";
if (report_id == FU_WAC_REPORT_ID_GET_CHECKSUMS)
return "GetChecksums";
if (report_id == FU_WAC_REPORT_ID_SET_CHECKSUM_FOR_BLOCK)
return "SetChecksumForBlock";
if (report_id == FU_WAC_REPORT_ID_CALCULATE_CHECKSUM_FOR_BLOCK)
return "CalculateChecksumForBlock";
if (report_id == FU_WAC_REPORT_ID_WRITE_CHECKSUM_TABLE)
return "WriteChecksumTable";
if (report_id == FU_WAC_REPORT_ID_GET_CURRENT_FIRMWARE_IDX)
return "GetCurrentFirmwareIdx";
if (report_id == FU_WAC_REPORT_ID_MODULE)
return "Module";
return NULL;
}
void
fu_wac_buffer_dump (const gchar *title, guint8 cmd, const guint8 *buf, gsize sz)
{
g_autofree gchar *tmp = NULL;
if (g_getenv ("FWUPD_WACOM_USB_VERBOSE") == NULL)
return;
tmp = g_strdup_printf ("%s %s (%" G_GSIZE_FORMAT ")",
title, fu_wac_report_id_to_string (cmd), sz);
fu_common_dump_raw (G_LOG_DOMAIN, tmp, buf, sz);
}