| /* Copyright Statement: |
| * |
| * This software/firmware and related documentation ("MediaTek Software") are |
| * protected under relevant copyright laws. The information contained herein is |
| * confidential and proprietary to MediaTek Inc. and/or its licensors. Without |
| * the prior written permission of MediaTek inc. and/or its licensors, any |
| * reproduction, modification, use or disclosure of MediaTek Software, and |
| * information contained herein, in whole or in part, shall be strictly |
| * prohibited. |
| * |
| * MediaTek Inc. (C) 2018. All rights reserved. |
| * |
| * BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES |
| * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE") |
| * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER |
| * ON AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL |
| * WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR |
| * NONINFRINGEMENT. NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH |
| * RESPECT TO THE SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, |
| * INCORPORATED IN, OR SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES |
| * TO LOOK ONLY TO SUCH THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. |
| * RECEIVER EXPRESSLY ACKNOWLEDGES THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO |
| * OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES CONTAINED IN MEDIATEK |
| * SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE |
| * RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR |
| * STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S |
| * ENTIRE AND CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE |
| * RELEASED HEREUNDER WILL BE, AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE |
| * MEDIATEK SOFTWARE AT ISSUE, OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE |
| * CHARGE PAID BY RECEIVER TO MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE. |
| * |
| * The following software/firmware and/or related documentation ("MediaTek |
| * Software") have been modified by MediaTek Inc. All revisions are subject to |
| * any receiver's applicable license agreements with MediaTek Inc. |
| */ |
| |
| #ifndef MIDDLEWARE_BOOTLOADER_INCLUDE_BDEV_H |
| #define MIDDLEWARE_BOOTLOADER_INCLUDE_BDEV_H |
| |
| |
| #include <mt_list.h> |
| #include <platform_config.h> |
| #include <stdint.h> |
| #include <unistd.h> |
| |
| extern uint32_t bdev_work_buf; |
| extern uint32_t bdev_work_buf_size; |
| |
| #define BDEV_FLAGS_NONE (0U << 0U) |
| #define BDEV_FLAG_CACHE_ALIGNED_READS (1U << 0U) |
| #define BDEV_FLAG_CACHE_ALIGNED_WRITES (1U << 1U) |
| #define BDEV_FLAG_ADDR_CHECK (1U << 2U) |
| #define BDEV_FLAG_BUF_ALIGNED_READS (1U << 3U) |
| |
| /* normal boot device */ |
| struct bdev { |
| struct list_node node; |
| uint8_t name[MAX_DEVICE_NAME_LEN]; |
| off_t total_size; |
| uint32_t block_size; /* which means page size */ |
| uint32_t block_shift; |
| uint32_t block_count; |
| uint8_t label[MAX_PART_NAME_LEN]; |
| uint8_t erase_byte; |
| uint32_t erase_size; /* flash erase basic unit */ |
| uint32_t flags; |
| uint32_t gpt_flag; /* this flag if for writing nand gpt */ |
| uint32_t buf_align; |
| void *private_data; |
| |
| /* function pointers */ |
| ssize_t (*read)(struct bdev *dev, uint8_t *buf, |
| off_t offset, size_t len); |
| ssize_t (*read_block)(struct bdev *dev, uint8_t *buf, |
| uint32_t blknr, uint32_t count); |
| ssize_t (*write)(struct bdev *dev, uint8_t *buf, |
| off_t offset, size_t len); |
| ssize_t (*write_block)(struct bdev *dev, uint8_t *buf, |
| uint32_t blknr, uint32_t count); |
| ssize_t (*erase)(struct bdev *dev, off_t offset, size_t len); |
| void (*close)(struct bdev *dev); |
| }; |
| |
| void bdev_init(uint32_t work_buf, uint32_t work_buf_size); |
| int32_t bdev_register_device(struct bdev *dev); |
| int32_t bdev_unregister_device(struct bdev *dev); |
| |
| /* I/O operation */ |
| struct bdev *bdev_open(const uint8_t *name); |
| struct bdev *bdev_open_by_label(const uint8_t *label); |
| ssize_t bdev_read(struct bdev *dev, uint8_t *buf, |
| off_t offset, size_t len); |
| ssize_t bdev_read_block(struct bdev *dev, uint8_t *buf, |
| uint32_t block, uint32_t count); |
| ssize_t bdev_write(struct bdev *dev, uint8_t *buf, |
| off_t offset, size_t len); |
| ssize_t bdev_write_block(struct bdev *dev, uint8_t *buf, |
| uint32_t block, uint32_t count); |
| ssize_t bdev_erase(struct bdev *dev, off_t offset, size_t len); |
| int32_t bdev_close(struct bdev *dev); |
| |
| #endif /* MIDDLEWARE_BOOTLOADER_INCLUDE_BDEV_H */ |
| |