Split disk.h into block.h and std/disk.h.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 161 insertions, 0 deletions

diff --git a/src/std/disk.h b/src/std/disk.h
new file mode 100644
index 00000000..c111e073
--- /dev/null
+++ b/src/std/disk.h
@@ -0,0 +1,161 @@
+// Standard disk BIOS definitions.
+#ifndef __DISK_H
+#define __DISK_H
+
+#include "types.h" // u8
+
+#define DISK_RET_SUCCESS       0x00
+#define DISK_RET_EPARAM        0x01
+#define DISK_RET_EADDRNOTFOUND 0x02
+#define DISK_RET_EWRITEPROTECT 0x03
+#define DISK_RET_ECHANGED      0x06
+#define DISK_RET_EBOUNDARY     0x09
+#define DISK_RET_EBADTRACK     0x0c
+#define DISK_RET_ECONTROLLER   0x20
+#define DISK_RET_ETIMEOUT      0x80
+#define DISK_RET_ENOTLOCKED    0xb0
+#define DISK_RET_ELOCKED       0xb1
+#define DISK_RET_ENOTREMOVABLE 0xb2
+#define DISK_RET_ETOOMANYLOCKS 0xb4
+#define DISK_RET_EMEDIA        0xC0
+#define DISK_RET_ENOTREADY     0xAA
+
+
+/****************************************************************
+ * Interface structs
+ ****************************************************************/
+
+// Bios disk structures.
+struct int13ext_s {
+    u8  size;
+    u8  reserved;
+    u16 count;
+    struct segoff_s data;
+    u64 lba;
+} PACKED;
+
+// DPTE definition
+struct dpte_s {
+    u16 iobase1;
+    u16 iobase2;
+    u8  prefix;
+    u8  unused;
+    u8  irq;
+    u8  blkcount;
+    u8  dma;
+    u8  pio;
+    u16 options;
+    u16 reserved;
+    u8  revision;
+    u8  checksum;
+};
+
+// Disk Physical Table definition
+struct int13dpt_s {
+    u16 size;
+    u16 infos;
+    u32 cylinders;
+    u32 heads;
+    u32 spt;
+    u64 sector_count;
+    u16 blksize;
+    struct segoff_s dpte;
+    u16 key;
+    u8  dpi_length;
+    u8  reserved1;
+    u16 reserved2;
+    u8  host_bus[4];
+    u8  iface_type[8];
+    u64 iface_path;
+    union {
+        struct {
+            u64 device_path;
+            u8  reserved3;
+            u8  checksum;
+        } phoenix;
+        struct {
+            u64 device_path[2];
+            u8  reserved3;
+            u8  checksum;
+        } t13;
+    };
+} PACKED;
+
+// Floppy "Disk Base Table"
+struct floppy_dbt_s {
+    u8 specify1;
+    u8 specify2;
+    u8 shutoff_ticks;
+    u8 bps_code;
+    u8 sectors;
+    u8 interblock_len;
+    u8 data_len;
+    u8 gap_len;
+    u8 fill_byte;
+    u8 settle_time;
+    u8 startup_time;
+} PACKED;
+
+struct floppy_ext_dbt_s {
+    struct floppy_dbt_s dbt;
+    // Extra fields
+    u8 max_track;
+    u8 data_rate;
+    u8 drive_type;
+} PACKED;
+
+
+/****************************************************************
+ * Master boot record
+ ****************************************************************/
+
+struct packed_chs_s {
+    u8 heads;
+    u8 sptcyl;
+    u8 cyllow;
+};
+
+struct partition_s {
+    u8 status;
+    struct packed_chs_s first;
+    u8 type;
+    struct packed_chs_s last;
+    u32 lba;
+    u32 count;
+} PACKED;
+
+struct mbr_s {
+    u8 code[440];
+    // 0x01b8
+    u32 diskseg;
+    // 0x01bc
+    u16 null;
+    // 0x01be
+    struct partition_s partitions[4];
+    // 0x01fe
+    u16 signature;
+} PACKED;
+
+#define MBR_SIGNATURE 0xaa55
+
+
+/****************************************************************
+ * ElTorito CDROM interface
+ ****************************************************************/
+
+struct eltorito_s {
+    u8 size;
+    u8 media;
+    u8 emulated_drive;
+    u8 controller_index;
+    u32 ilba;
+    u16 device_spec;
+    u16 buffer_segment;
+    u16 load_segment;
+    u16 sector_count;
+    u8 cylinders;
+    u8 sectors;
+    u8 heads;
+};
+
+#endif // disk.h