From 10cd931d75a02942c5ad254cef2e56b515122fa3 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Wed, 15 Apr 2020 00:33:39 +0200
Subject: Removed filesystem

SOON: Correct ext2 attempt
---
 src/kernel/fs/marfs/sectorlevel.c | 121 --------------------------------------
 1 file changed, 121 deletions(-)
 delete mode 100644 src/kernel/fs/marfs/sectorlevel.c

(limited to 'src/kernel/fs/marfs/sectorlevel.c')

diff --git a/src/kernel/fs/marfs/sectorlevel.c b/src/kernel/fs/marfs/sectorlevel.c
deleted file mode 100644
index e84e1f2..0000000
--- a/src/kernel/fs/marfs/sectorlevel.c
+++ /dev/null
@@ -1,121 +0,0 @@
-#include <stdint.h>
-#include <kernel/fs/ata_pio.h>
-#include <kernel/fs/marfs/marfs.h>
-#include <kernel/memory/alloc.h>
-
-uint8_t marfs_init(struct ata_interface *_interface)
-{
-	interface = _interface;
-	uint16_t identify_data[256 * 2];
-	uint8_t ret = ata_identify(interface, identify_data);
-	max_lba = (identify_data[61] << 16) + identify_data[60];
-	return ret;
-}
-
-uint32_t marfs_get_max_lba(void)
-{
-	return max_lba;
-}
-
-uint8_t marfs_write_mbr(uint8_t *mbr)
-{
-	return ata_write28(interface, 0, mbr);
-}
-
-struct marfs_superblock *marfs_read_superblock()
-{
-	struct marfs_superblock *p = (struct marfs_superblock *)ata_read28(interface, 1);
-	sb_cache = *p;
-	return p;
-}
-
-uint8_t marfs_write_superblock(struct marfs_superblock *sb)
-{
-	sb_cache = *sb;
-	return ata_write28(interface, 1, (uint8_t *)sb);
-}
-
-uint32_t marfs_get_free_lba_block(void)
-{
-	uint32_t offset = 2 + sb_cache.s_first_chunk;
-	uint8_t *p = 0;
-	for (uint32_t i = 0; i < sb_cache.n_chunks; i++) {
-		p = ata_read28(interface, offset);
-		if (!(*p & 0x80))
-			break;
-		kfree(p);
-		offset += 512;
-	}
-
-	offset++;
-	for (uint16_t i = 1; i < 512; i++) {
-		if (!p[i])
-			break;
-		offset++;
-	}
-	kfree(p);
-
-	ata_clear28(interface, offset);
-
-	return offset;
-}
-
-static uint8_t marfs_mark_block(uint32_t lba_sector, uint8_t mode)
-{
-	lba_sector -= 2;
-	lba_sector -= sb_cache.s_first_chunk;
-	uint16_t block_in_chunk = (uint16_t)(lba_sector % 512);
-	lba_sector /= 512;
-	lba_sector = 2 + sb_cache.s_first_chunk + (512 * lba_sector);
-
-	uint8_t *p = ata_read28(interface, lba_sector);
-	p[block_in_chunk] = mode;
-
-	if (mode == 0) {
-		p[0] = 0;
-	} else {
-		uint8_t full_chunk = 1;
-		for (uint16_t i = 1; i < 512; i++) {
-			if (!p[i]) {
-				full_chunk = 0;
-				break;
-			}
-		}
-		p[0] = full_chunk;
-	}
-
-	uint8_t ret = ata_write28(interface, lba_sector, p);
-	kfree(p);
-	return ret;
-}
-
-uint8_t marfs_mark_block_as_free(uint32_t lba_sector)
-{
-	return marfs_mark_block(lba_sector, 0);
-}
-
-uint8_t marfs_mark_block_as_used(uint32_t lba_sector)
-{
-	return marfs_mark_block(lba_sector, 1);
-}
-
-uint32_t marfs_get_free_lba_inode(void)
-{
-	uint32_t offset;
-	for (offset = 2; offset < 2 + sb_cache.n_inodes; offset++) {
-		struct marfs_inode *inode = (struct marfs_inode *)ata_read28(interface, offset);
-		uint8_t used = inode->is_used;
-		kfree(inode);
-		if (!used)
-			break;
-	}
-	return offset;
-}
-
-void marfs_mark_inode_as_free(uint32_t lba_sector)
-{
-	struct marfs_inode *inode = (struct marfs_inode *)ata_read28(interface, lba_sector);
-	inode->is_used = 0;
-	ata_write28(interface, lba_sector, (uint8_t *)inode);
-	kfree(inode);
-}
\ No newline at end of file
-- 
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