/*
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* (C) Copyright 2017 Rockchip Electronics Co., Ltd
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __RESC_IMG_H_
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#define __RESC_IMG_H_
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#include <linux/list.h>
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#define MAX_FILE_NAME_LEN 220
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#define MAX_HASH_LEN 32
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#define ROOT_COMPAT_PROP_OFFSET 0x4c /* Property: "/compatible" */
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#define DTB_SUFFIX ".dtb"
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struct resource_file {
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char name[MAX_FILE_NAME_LEN];
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char hash[MAX_HASH_LEN];
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uint32_t hash_size;
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uint32_t f_offset; /* Sector offset */
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uint32_t f_size; /* Bytes */
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struct list_head link;
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struct list_head dtbs;
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/* Sector base of resource when ram=false, byte base when ram=true */
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uint32_t rsce_base;
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bool ram;
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};
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extern struct list_head entrys_head;
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extern struct list_head entrys_dtbs_head;
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/*
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* resource_image_check_header - check resource image header
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*
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* @rsce_hdr: resource file hdr
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*
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* return 0 on header okay, otherwise failed
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*/
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int resource_image_check_header(void *rsce_hdr);
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/*
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* resource_create_ram_list - create resource file list by data from memory
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*
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* @dev_desc: blk dev descritpion
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* @rsce_hdr: resource file hdr
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*
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* return 0 on header okay, otherwise failed
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*/
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int resource_create_ram_list(struct blk_desc *dev_desc, void *rsce_hdr);
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/*
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* rockchip_read_resource_file - read file from resource partition
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*
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* @buf: destination buf to store file data
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* @name: file name
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* @offset: blocks offset in the file, 1 block = 512 bytes
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* @len: the size(by bytes) of file to read.
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*
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* return negative num on failed, otherwise the file size
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*/
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int rockchip_read_resource_file(void *buf, const char *name, int offset, int len);
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/*
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* rockchip_read_resource_dtb() - read dtb file
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*
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* @fdt_addr: destination buf to store dtb file
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* @hash: hash value buffer
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* @hash_size: hash value length
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*/
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int rockchip_read_resource_dtb(void *fdt_addr, char **hash, int *hash_size);
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/*
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* resource_init_list - init resource list of android image from storage
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*/
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int resource_init_list(void);
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/*
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* resource_replace_entry - replace resource entry, override if find exist one
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*/
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int resource_replace_entry(const char *f_name, uint32_t base,
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uint32_t f_offset, uint32_t f_size);
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/*
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* resource_read_logo_bmps() - read logo bmp from "logo" partition
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*/
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int resource_read_logo_bmps(void);
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/*
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* resource_read_hwid_dtb() - read hwid dtb
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*/
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struct resource_file *resource_read_hwid_dtb(void);
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/*
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* resource_is_empty() - return if resource is empty
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*/
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int resource_is_empty(void);
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/*
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* resource_traverse_init_list() - traverse all image(android/fit/uimage)
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*/
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int resource_traverse_init_list(void);
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/*
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* board_resource_dtb_accepted() - check if this dtb is accepted
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*
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* return 0 if not accepted, otherwise accepted.
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*/
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int board_resource_dtb_accepted(char *dtb_name);
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#endif
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