From fc00c656c96528112d05cf0edf8631bd5eaea446 Mon Sep 17 00:00:00 2001
From: Kacper <kacper@mail.openlinux.dev>
Date: Sun, 7 Dec 2025 20:10:31 +0100
Subject: Add build system scaffolding and libc headers

---
 include/arch/x86_64/linux/cciss_defs.h | 132 +++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 include/arch/x86_64/linux/cciss_defs.h

(limited to 'include/arch/x86_64/linux/cciss_defs.h')

diff --git a/include/arch/x86_64/linux/cciss_defs.h b/include/arch/x86_64/linux/cciss_defs.h
new file mode 100644
index 00000000..d5e0c5f6
--- /dev/null
+++ b/include/arch/x86_64/linux/cciss_defs.h
@@ -0,0 +1,132 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef CCISS_DEFS_H
+#define CCISS_DEFS_H
+
+#include <linux/types.h>
+
+/* general boundary definitions */
+#define SENSEINFOBYTES                      \
+	32 /* note that this value may vary \
+	      between host implementations */
+
+/* Command Status value */
+#define CMD_SUCCESS	      0x0000
+#define CMD_TARGET_STATUS     0x0001
+#define CMD_DATA_UNDERRUN     0x0002
+#define CMD_DATA_OVERRUN      0x0003
+#define CMD_INVALID	      0x0004
+#define CMD_PROTOCOL_ERR      0x0005
+#define CMD_HARDWARE_ERR      0x0006
+#define CMD_CONNECTION_LOST   0x0007
+#define CMD_ABORTED	      0x0008
+#define CMD_ABORT_FAILED      0x0009
+#define CMD_UNSOLICITED_ABORT 0x000A
+#define CMD_TIMEOUT	      0x000B
+#define CMD_UNABORTABLE	      0x000C
+
+/* transfer direction */
+#define XFER_NONE  0x00
+#define XFER_WRITE 0x01
+#define XFER_READ  0x02
+#define XFER_RSVD  0x03
+
+/* task attribute */
+#define ATTR_UNTAGGED	 0x00
+#define ATTR_SIMPLE	 0x04
+#define ATTR_HEADOFQUEUE 0x05
+#define ATTR_ORDERED	 0x06
+#define ATTR_ACA	 0x07
+
+/* cdb type */
+#define TYPE_CMD 0x00
+#define TYPE_MSG 0x01
+
+/* Type defs used in the following structs */
+#define BYTE  __u8
+#define WORD  __u16
+#define HWORD __u16
+#define DWORD __u32
+
+#define CISS_MAX_LUN 1024
+
+#define LEVEL2LUN 1 /* index into Target(x) structure, due to byte swapping */
+#define LEVEL3LUN 0
+
+#pragma pack(1)
+
+/* Command List Structure */
+typedef union _SCSI3Addr_struct {
+	struct {
+		BYTE Dev;
+		BYTE Bus : 6;
+		BYTE Mode : 2; /* b00 */
+	} PeripDev;
+	struct {
+		BYTE DevLSB;
+		BYTE DevMSB : 6;
+		BYTE Mode : 2; /* b01 */
+	} LogDev;
+	struct {
+		BYTE Dev : 5;
+		BYTE Bus : 3;
+		BYTE Targ : 6;
+		BYTE Mode : 2; /* b10 */
+	} LogUnit;
+} SCSI3Addr_struct;
+
+typedef struct _PhysDevAddr_struct {
+	DWORD TargetId : 24;
+	DWORD Bus : 6;
+	DWORD Mode : 2;
+	SCSI3Addr_struct Target[2]; /* 2 level target device addr */
+} PhysDevAddr_struct;
+
+typedef struct _LogDevAddr_struct {
+	DWORD VolId : 30;
+	DWORD Mode : 2;
+	BYTE reserved[4];
+} LogDevAddr_struct;
+
+typedef union _LUNAddr_struct {
+	BYTE LunAddrBytes[8];
+	SCSI3Addr_struct SCSI3Lun[4];
+	PhysDevAddr_struct PhysDev;
+	LogDevAddr_struct LogDev;
+} LUNAddr_struct;
+
+typedef struct _RequestBlock_struct {
+	BYTE CDBLen;
+	struct {
+		BYTE Type : 3;
+		BYTE Attribute : 3;
+		BYTE Direction : 2;
+	} Type;
+	HWORD Timeout;
+	BYTE CDB[16];
+} RequestBlock_struct;
+
+typedef union _MoreErrInfo_struct {
+	struct {
+		BYTE Reserved[3];
+		BYTE Type;
+		DWORD ErrorInfo;
+	} Common_Info;
+	struct {
+		BYTE Reserved[2];
+		BYTE offense_size; /* size of offending entry */
+		BYTE offense_num;  /* byte # of offense 0-base */
+		DWORD offense_value;
+	} Invalid_Cmd;
+} MoreErrInfo_struct;
+typedef struct _ErrorInfo_struct {
+	BYTE ScsiStatus;
+	BYTE SenseLen;
+	HWORD CommandStatus;
+	DWORD ResidualCnt;
+	MoreErrInfo_struct MoreErrInfo;
+	BYTE SenseInfo[SENSEINFOBYTES];
+} ErrorInfo_struct;
+
+#pragma pack()
+
+#endif /* CCISS_DEFS_H */
-- 
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