Files
OmniNX-Installer-Payload/bdk/storage/ramdisk.c
T
niklascfw 1b4a81239b Update BDK to hekate v6.5.5
Replaces the old vendored BDK with the one from hekate v6.5.5 (CTCaer's
2025/2026 refactors: sdmmc, SE, minerva v1.6, display, heap, return
value homogenisation). OmniNX additions re-applied on top:
bq24193_charger_connected() and jc_clear_input(); s_vprintf now ships
with the BDK.

Ported to the new API:
- sd_mount(), sdmmc_storage_* and ini_parse() now return 0 on success.
  The installer checked ini_parse() != 1, which would have made it miss
  manifest.ini and run every install as a clean install.
- SD helpers come from bdk/storage/sd.c (source/nx_sd.* removed),
  ffsystem.c from the BDK, diskio.c/ffconf.h from hekate (ffconf keeps
  the sd:/ volume prefix).
- minerva_init() needs the minerva storage; the installer still drops
  to 800 MHz afterwards.
- Payload launch follows hekate (sd_file_read, hw_deinit); coreboot
  path removed upstream.
- Stack moved to 0x96000000: the old 0x83100000 is inside the new heap.
- GUI/USB/compression parts of the BDK are not built.
2026-11-12 23:17:18 +01:00

87 lines
2.0 KiB
C

/*
* Ramdisk driver for Tegra X1
*
* Copyright (c) 2019-2021 CTCaer
*
* 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 "ramdisk.h"
#include <libs/fatfs/diskio.h>
#include <libs/fatfs/ff.h>
#include <mem/heap.h>
#include <utils/types.h>
#include <memory_map.h>
static u32 disk_size = 0;
int ram_disk_init(void *ram_fs, u32 ramdisk_size)
{
int res = 0;
disk_size = ramdisk_size;
FATFS *ram_fatfs = (FATFS *)ram_fs;
// If ramdisk is not raw, format it.
if (ram_fs)
{
u8 *buf = malloc(0x400000);
// Set ramdisk size.
ramdisk_size >>= 9;
disk_set_info(DRIVE_RAM, SET_SECTOR_COUNT, &ramdisk_size);
// Unmount ramdisk.
f_unmount("ram:");
// Format as exFAT w/ 32KB cluster with no MBR.
res = f_mkfs("ram:", FM_EXFAT | FM_SFD, RAMDISK_CLUSTER_SZ, buf, 0x400000);
// Mount ramdisk.
if (!res)
res = f_mount(ram_fatfs, "ram:", 1);
free(buf);
}
return res;
}
int ram_disk_read(u32 sector, u32 sector_count, void *buf)
{
u32 sector_off = RAM_DISK_ADDR + (sector << 9);
u32 bytes_count = sector_count << 9;
if ((sector_off - RAM_DISK_ADDR) > disk_size)
return 1;
memcpy(buf, (void *)sector_off, bytes_count);
return 0;
}
int ram_disk_write(u32 sector, u32 sector_count, const void *buf)
{
u32 sector_off = RAM_DISK_ADDR + (sector << 9);
u32 bytes_count = sector_count << 9;
if ((sector_off - RAM_DISK_ADDR) > disk_size)
return 1;
memcpy((void *)sector_off, buf, bytes_count);
return 0;
}