recovery/updater/vboot_interface.h

/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

#ifndef _RECOVERY_VBOOT_INTERFACE_H_
#define _RECOVERY_VBOOT_INTERFACE_H_


char *fdt_read_string(const char *prop);
uint32_t fdt_read_u32(const char *prop);

char vboot_get_mainfw_act(void);

off_t fmap_scan_offset(struct flash_device *dev, off_t end);
struct fmap *fmap_load(struct flash_device *dev, off_t offset);
void *fmap_read_section(struct flash_device *dev,
			const char *name, size_t *size, off_t *offset);
int fmap_get_section_offset(struct flash_device *dev, const char *name,
			    off_t *offset);

uint8_t *gbb_get_rootkey(struct flash_device *dev, size_t *size);

/* Firmware result codes for VB2_NV_FW_RESULT and VB2_NV_FW_PREV_RESULT */
enum vb2_fw_result {
	/* Unknown */
	VB2_FW_RESULT_UNKNOWN = 0,

	/* Trying a new slot, but haven't reached success/failure */
	VB2_FW_RESULT_TRYING = 1,

	/* Successfully booted to the OS */
	VB2_FW_RESULT_SUCCESS = 2,

	/* Known failure */
	VB2_FW_RESULT_FAILURE = 3,
};

int vbnv_set_flag(struct flash_device *spi, const char *param, uint8_t value);
int vbnv_get_flag(struct flash_device *spi, const char *param, uint8_t *value);

void vbnv_usage(int write);
#endif /* _RECOVERY_VBOOT_INTERFACE_H_ */

#ifdef __cplusplus
} /* extern "C" */
#endif /* __cplusplus */