feat: Massive OS expansion with IPC, Sound & TTS, Block layer, FAT32/ext2/sysfs, Signals, Syscalls, Modules, Drivers & 50+ LazyBox applets

include/fs/fat32.h

@@ -0,0 +1,60 @@
+#ifndef _FS_FAT32_H
+#define _FS_FAT32_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <fs/vfs.h>
+
+/* FAT32 Extended BIOS Parameter Block */
+typedef struct {
+    uint8_t  jmp[3];
+    char     oem[8];
+    uint16_t bytes_per_sector;
+    uint8_t  sectors_per_cluster;
+    uint16_t reserved_sectors;
+    uint8_t  fat_count;
+    uint16_t root_entries;
+    uint16_t total_sectors_short;
+    uint8_t  media_type;
+    uint16_t table_size_16;
+    uint16_t sectors_per_track;
+    uint16_t head_side_count;
+    uint32_t hidden_sectors;
+    uint32_t total_sectors_32;
+
+    // FAT32 Extended
+    uint32_t table_size_32;
+    uint16_t extended_flags;
+    uint16_t fat_version;
+    uint32_t root_cluster;
+    uint16_t fat_info;
+    uint16_t backup_boot_sector;
+    uint8_t  reserved[12];
+    uint8_t  drive_number;
+    uint8_t  reserved1;
+    uint8_t  boot_signature;
+    uint32_t volume_id;
+    char     volume_label[11];
+    char     fat_type_label[8];
+} __attribute__((packed)) fat32_bpb_t;
+
+typedef struct {
+    char     name[11];
+    uint8_t  attr;
+    uint8_t  nt_reserved;
+    uint8_t  creation_time_tenth;
+    uint16_t creation_time;
+    uint16_t creation_date;
+    uint16_t last_access_date;
+    uint16_t cluster_high;
+    uint16_t write_time;
+    uint16_t write_date;
+    uint16_t cluster_low;
+    uint32_t file_size;
+} __attribute__((packed)) fat32_dirent_t;
+
+void fat32_init(void);
+vfs_node_t* fat32_mount(const char* block_device_name);
+
+#endif // _FS_FAT32_H