mirror of
https://github.com/CTCaer/hekate
synced 2024-09-08 00:59:00 +00:00
78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
![]() |
/*
|
||
|
* Copyright (c) 2018 naehrwert
|
||
|
*
|
||
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
* under the terms and conditions of the GNU General Public License,
|
||
|
* version 2, as published by the Free Software Foundation.
|
||
|
*
|
||
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
||
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||
|
* more details.
|
||
|
*
|
||
|
* You should have received a copy of the GNU General Public License
|
||
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
*/
|
||
|
|
||
|
#include <string.h>
|
||
|
|
||
|
#include "nx_emmc.h"
|
||
|
#include "../mem/heap.h"
|
||
|
#include "../utils/list.h"
|
||
|
|
||
|
void nx_emmc_gpt_parse(link_t *gpt, sdmmc_storage_t *storage)
|
||
|
{
|
||
|
u8 *buf = (u8 *)malloc(NX_GPT_NUM_BLOCKS * NX_EMMC_BLOCKSIZE);
|
||
|
|
||
|
sdmmc_storage_read(storage, NX_GPT_FIRST_LBA, NX_GPT_NUM_BLOCKS, buf);
|
||
|
|
||
|
gpt_header_t *hdr = (gpt_header_t *)buf;
|
||
|
for (u32 i = 0; i < hdr->num_part_ents; i++)
|
||
|
{
|
||
|
gpt_entry_t *ent = (gpt_entry_t *)(buf + (hdr->part_ent_lba - 1) * NX_EMMC_BLOCKSIZE + i * sizeof(gpt_entry_t));
|
||
|
emmc_part_t *part = (emmc_part_t *)malloc(sizeof(emmc_part_t));
|
||
|
part->lba_start = ent->lba_start;
|
||
|
part->lba_end = ent->lba_end;
|
||
|
part->attrs = ent->attrs;
|
||
|
|
||
|
//HACK
|
||
|
for (u32 i = 0; i < 36; i++)
|
||
|
part->name[i] = ent->name[i];
|
||
|
part->name[36] = 0;
|
||
|
|
||
|
list_append(gpt, &part->link);
|
||
|
}
|
||
|
|
||
|
free(buf);
|
||
|
}
|
||
|
|
||
|
void nx_emmc_gpt_free(link_t *gpt)
|
||
|
{
|
||
|
LIST_FOREACH_SAFE(iter, gpt)
|
||
|
free(CONTAINER_OF(iter, emmc_part_t, link));
|
||
|
}
|
||
|
|
||
|
emmc_part_t *nx_emmc_part_find(link_t *gpt, const char *name)
|
||
|
{
|
||
|
LIST_FOREACH_ENTRY(emmc_part_t, part, gpt, link)
|
||
|
if (!strcmp(part->name, name))
|
||
|
return part;
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
int nx_emmc_part_read(sdmmc_storage_t *storage, emmc_part_t *part, u32 sector_off, u32 num_sectors, void *buf)
|
||
|
{
|
||
|
// The last LBA is inclusive.
|
||
|
if (part->lba_start + sector_off > part->lba_end)
|
||
|
return 0;
|
||
|
return sdmmc_storage_read(storage, part->lba_start + sector_off, num_sectors, buf);
|
||
|
}
|
||
|
|
||
|
int nx_emmc_part_write(sdmmc_storage_t *storage, emmc_part_t *part, u32 sector_off, u32 num_sectors, void *buf)
|
||
|
{
|
||
|
// The last LBA is inclusive.
|
||
|
if (part->lba_start + sector_off > part->lba_end)
|
||
|
return 0;
|
||
|
return sdmmc_storage_write(storage, part->lba_start + sector_off, num_sectors, buf);
|
||
|
}
|