mtk-lk/app/mt_boot/aee/mrdump_sddev.c

/* 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,
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*/
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*
* BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
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*/

#include <malloc.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <block_generic_interface.h>
#include <part_interface.h>
#include <part_status.h>

#include "aee.h"
#include "mrdump_private.h"

static uint64_t part_device_get_size(struct mrdump_dev *dev)
{
	if (dev == NULL) {
		voprintf_error("%s dev is NULL!\n", __func__);
		return 0;
	} else {
		return partition_get_size_by_name(dev->handle);
	}
}

static bool part_device_read(struct mrdump_dev *dev, uint64_t offset, uint8_t *buf, int32_t len)
{
	if (dev == NULL) {
		voprintf_error("%s dev is NULL!\n", __func__);
		return false;
	} else {
		return partition_read(dev->handle, offset, buf, len) == len;
	}
}

static bool part_device_write(struct mrdump_dev *dev, uint64_t offset, uint8_t *buf, int32_t len)
{
	if (dev == NULL) {
		voprintf_error("%s dev is NULL!\n", __func__);
		return false;
	} else {
		return partition_write(dev->handle, offset, buf, len) == len;
	}
}

struct mrdump_dev *mrdump_dev_blkpart(const char *partname)
{
	if (partition_exists(partname) != PART_OK) {
		voprintf_error("Can't find partition %s\n", partname);
		return NULL;
	}
        struct mrdump_dev *dev = malloc(sizeof(struct mrdump_dev));
        if (!dev) {
                voprintf_error("%s: malloc() failed!\n", __func__);
                return NULL;
        }

        dev->name = "blkpart";
        dev->handle = (void *)strdup(partname);
        dev->read = part_device_read;
        dev->write = part_device_write;
	dev->get_size = part_device_get_size;
        return dev;
}