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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Implements utilities for firmware management of mobile chipsets.
*
* Copyright (C) 2021 Google, Inc.
*/
#ifndef __MOBILE_FIRMWARE_H__
#define __MOBILE_FIRMWARE_H__
#include <linux/sizes.h>
#include "edgetpu-internal.h"
#include "edgetpu.h"
/* mobile FW header size */
#define MOBILE_FW_HEADER_SIZE SZ_4K
/* The offset to the signed firmware header. */
#define MOBILE_HEADER_OFFSET 0x400
/* The offset to image configuration. */
#define MOBILE_IMAGE_CONFIG_OFFSET (MOBILE_HEADER_OFFSET + 0x160)
/*
* The image configuration attached to the signed firmware.
*/
struct mobile_image_config {
__u32 carveout_base;
__u32 firmware_base;
__u32 firmware_size;
struct edgetpu_fw_version firmware_versions;
} __packed;
/*
* Mobile firmware header.
*/
struct mobile_image_header {
char sig[512];
char pub[512];
int Magic;
int Generation;
int RollbackInfo;
int Length;
char Flags[16];
char BodyHash[32];
char ChipId[32];
char AuthConfig[256];
struct mobile_image_config ImageConfig;
};
int mobile_edgetpu_firmware_create(struct edgetpu_dev *etdev);
void mobile_edgetpu_firmware_destroy(struct edgetpu_dev *etdev);
int mobile_edgetpu_firmware_run_default(struct edgetpu_dev *etdev);
#endif /* __MOBILE_FIRMWARE_H__ */
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