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/* SPDX-License-Identifier: GPL-2.0 */
/*
* GCIP firmware interface.
*
* Copyright (C) 2022 Google LLC
*/
#ifndef __GCIP_FIRMWARE_H__
#define __GCIP_FIRMWARE_H__
#include <linux/types.h>
enum gcip_fw_status {
/* No firmware loaded yet, or last firmware failed to run. */
GCIP_FW_INVALID = 0,
/* Load in progress. */
GCIP_FW_LOADING = 1,
/* Current firmware is valid and can be restarted. */
GCIP_FW_VALID = 2,
};
/* Firmware flavors returned via KCI FIRMWARE_INFO command. */
enum gcip_fw_flavor {
/* Unused value for extending enum storage type. */
GCIP_FW_FLAVOR_ERROR = -1,
/* Used by host when cannot determine the flavor. */
GCIP_FW_FLAVOR_UNKNOWN = 0,
/* Second-stage bootloader (no longer used). */
GCIP_FW_FLAVOR_BL1 = 1,
/* Systest app image. */
GCIP_FW_FLAVOR_SYSTEST = 2,
/* Default production app image. */
GCIP_FW_FLAVOR_PROD_DEFAULT = 3,
/* Custom image produced by other teams. */
GCIP_FW_FLAVOR_CUSTOM = 4,
};
/* Firmware info filled out via KCI FIRMWARE_INFO command. */
struct gcip_fw_info {
uint64_t fw_build_time; /* BuildData::Timestamp() */
uint32_t fw_flavor; /* enum gcip_fw_flavor */
uint32_t fw_changelist; /* BuildData::Changelist() */
uint32_t spare[10];
};
/* Returns the name of @fw_flavor in string. */
char *gcip_fw_flavor_str(enum gcip_fw_flavor fw_flavor);
#endif /* __GCIP_FIRMWARE_H__ */
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