+// SPDX-License-Identifier: MIT
+
+#include <stdint.h>
+
+#include "platforms/amiga/hunk-reloc.h"
+
#define TDF_EXTCOM (1<<15)
#define CMD_INVALID 0
#define NSCMD_TD_FORMAT64 0xC003
#define RDB_BLOCK_LIMIT 16
-#define RDB_IDENTIFIER 0x5244534B
-void piscsi_init();
-void piscsi_map_drive(char *filename, uint8_t index);
-
-void handle_piscsi_write(uint32_t addr, uint32_t val, uint8_t type);
-uint32_t handle_piscsi_read(uint32_t addr, uint8_t type);
+// RDSK
+#define RDB_IDENTIFIER 0x5244534B
+// PART
+#define PART_IDENTIFIER 0x50415254
+// FSHD
+#define FS_IDENTIFIER 0x46534844
-void piscsi_block_op(uint8_t type, uint8_t num, uint32_t dest, uint32_t len);
+#define PISCSI_DRIVER_OFFSET 0x1000
+#define NUM_FILESYSTEMS 32
struct piscsi_dev {
uint32_t c;
uint64_t fs;
int32_t fd;
uint32_t lba;
- // Will parse max eight partitions per disk
+ uint32_t num_partitions;
+ uint32_t fshd_offs;
+ uint32_t block_size;
struct PartitionBlock *pb[16];
struct RigidDiskBlock *rdb;
};
-/*
-dosnode: \
+struct piscsi_fs {
+ struct FileSysHeaderBlock * fhb;
+ uint32_t FS_ID;
+ uint32_t handler;
+ struct hunk_reloc relocs[4096];
+ struct hunk_info h_info;
+ uint8_t *binary_data;
+};
+
// .long 0 /* dos disk name */
// .long 0 /* device file name */
// .long 0 /* unit */
// .long 0 /* flags */
-// .long 16 /* length of node? */
-// .long 128 /* longs in a block */
-// .long 0
-// .long 4 /* surfaces */
-// .long 1 /* sectors per block */
-// .long 256 /* blocks per track */
-// .long 2 /* reserved bootblocks 256 = 128KB */
-// .long 0
-// .long 0
-// .long 2 /* lowcyl FIXME */
-// /*.long 2047*/ /* hicyl */
-// .long 10 /* buffers */
-// .long 0 /* MEMF_ANY */
-// .long 0x0001fe00 /* MAXTRANS */
-// .long 0x7ffffffe /* Mask */
-// .long -1 /* boot prio */
-// .long 0x444f5303 /* dostype: DOS3 */1
+struct DosEnvec {
+ uint32_t de_TableSize; /* Size of Environment vector */
+ uint32_t de_SizeBlock; /* in longwords: standard value is 128 */
+ uint32_t de_SecOrg; /* not used; must be 0 */
+ uint32_t de_Surfaces; /* # of heads (surfaces). drive specific */
+ uint32_t de_SectorPerBlock; /* not used; must be 1 */
+ uint32_t de_BlocksPerTrack; /* blocks per track. drive specific */
+ uint32_t de_Reserved; /* DOS reserved blocks at start of partition. */
+ uint32_t de_PreAlloc; /* DOS reserved blocks at end of partition */
+ uint32_t de_Interleave; /* usually 0 */
+ uint32_t de_LowCyl; /* starting cylinder. typically 0 */
+ uint32_t de_HighCyl; /* max cylinder. drive specific */
+ uint32_t de_NumBuffers; /* Initial # DOS of buffers. */
+ uint32_t de_BufMemType; /* type of mem to allocate for buffers */
+ uint32_t de_MaxTransfer; /* Max number of bytes to transfer at a time */
+ uint32_t de_Mask; /* Address Mask to block out certain memory */
+ int32_t de_BootPri; /* Boot priority for autoboot */
+ uint32_t de_DosType; /* ASCII (HEX) string showing filesystem type;
+ * 0X444F5300 is old filesystem,
+ * 0X444F5301 is fast file system */
+ uint32_t de_Baud; /* Baud rate for serial handler */
+ uint32_t de_Control; /* Control word for handler/filesystem */
+ uint32_t de_BootBlocks; /* Number of blocks containing boot code */
+
+};
struct pihd_dosnode_data {
uint32_t name_ptr;
uint32_t blocks_per_track;
uint32_t reserved_blocks;
uint32_t pad2;
- uint32_t pad3;
+ uint32_t interleave;
uint32_t lowcyl;
uint32_t highcyl;
uint32_t buffers;
char rdb_DriveInitName[40];
};
+struct DeviceNode {
+ uint32_t dn_Next;
+ uint32_t dn_Type;
+ uint32_t dn_Task;
+ uint32_t dn_Lock;
+ uint8_t *dn_Handler;
+ uint32_t dn_StackSize;
+ int32_t dn_Priority;
+ uint32_t dn_Startup;
+ uint32_t dn_SegList;
+ uint32_t dn_GlobalVec;
+ uint8_t *dn_Name;
+};
+
struct PartitionBlock {
uint32_t pb_ID;
uint32_t pb_SummedLongs;
uint32_t pb_Environment[20];
uint32_t pb_EReserved[12];
};
+
+struct SCSICmd_ModeSense6 {
+ uint8_t opcode;
+ uint8_t reserved_dbd;
+ uint8_t pc_pagecode;
+ uint8_t subpage_code;
+ uint8_t alloc_len;
+ uint8_t control;
+};
+
+struct SCSICmd_RW10 {
+ uint8_t opcode;
+ uint8_t rdprotect_flags;
+ uint32_t block;
+ uint8_t res_groupnum;
+ uint16_t len;
+ uint8_t control;
+};
+
+struct FileSysHeaderBlock {
+ uint32_t fhb_ID;
+ uint32_t fhb_SummedLongs;
+ int32_t fhb_ChkSum;
+ uint32_t fhb_HostID;
+ uint32_t fhb_Next;
+ uint32_t fhb_Flags;
+ uint32_t fhb_Reserved1[2];
+ uint32_t fhb_DosType;
+ uint32_t fhb_Version;
+ uint32_t fhb_PatchFlags;
+ uint32_t fhb_Type;
+ uint32_t fhb_Task;
+ uint32_t fhb_Lock;
+ uint32_t fhb_Handler;
+ uint32_t fhb_StackSize;
+ int32_t fhb_Priority;
+ int32_t fhb_Startup;
+ int32_t fhb_SegListBlocks;
+ int32_t fhb_GlobalVec;
+ uint32_t fhb_Reserved2[23];
+ uint8_t fhb_FileSysName[84];
+};
+
+void piscsi_init();
+void piscsi_shutdown();
+void piscsi_map_drive(char *filename, uint8_t index);
+void piscsi_unmap_drive(uint8_t index);
+struct piscsi_dev *piscsi_get_dev(uint8_t index);
+
+void handle_piscsi_write(uint32_t addr, uint32_t val, uint8_t type);
+uint32_t handle_piscsi_read(uint32_t addr, uint8_t type);
+
+void piscsi_find_filesystems(struct piscsi_dev *d);
+void piscsi_refresh_drives();
+
+int load_fs(struct piscsi_fs *fs, char *dosID);
projects / pistorm / blobdiff