Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 108 insertions, 0 deletions

diff --git a/drivers/scsi/aha1542.h b/drivers/scsi/aha1542.h
new file mode 100644
index 000000000..92a5f9896
--- /dev/null
+++ b/drivers/scsi/aha1542.h
@@ -0,0 +1,108 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _AHA1542_H_
+#define _AHA1542_H_
+
+#include <linux/types.h>
+
+/* I/O Port interface 4.2 */
+/* READ */
+#define STATUS(base) base
+#define STST	BIT(7)		/* Self Test in Progress */
+#define DIAGF	BIT(6)		/* Internal Diagnostic Failure */
+#define INIT	BIT(5)		/* Mailbox Initialization Required */
+#define IDLE	BIT(4)		/* SCSI Host Adapter Idle */
+#define CDF	BIT(3)		/* Command/Data Out Port Full */
+#define DF	BIT(2)		/* Data In Port Full */
+/* BIT(1) is reserved */
+#define INVDCMD	BIT(0)		/* Invalid H A Command */
+#define STATMASK (STST | DIAGF | INIT | IDLE | CDF | DF | INVDCMD)
+
+#define INTRFLAGS(base) (STATUS(base)+2)
+#define ANYINTR	BIT(7)		/* Any Interrupt */
+#define SCRD	BIT(3)		/* SCSI Reset Detected */
+#define HACC	BIT(2)		/* HA Command Complete */
+#define MBOA	BIT(1)		/* MBO Empty */
+#define MBIF	BIT(0)		/* MBI Full */
+#define INTRMASK (ANYINTR | SCRD | HACC | MBOA | MBIF)
+
+/* WRITE */
+#define CONTROL(base) STATUS(base)
+#define HRST	BIT(7)		/* Hard Reset */
+#define SRST	BIT(6)		/* Soft Reset */
+#define IRST	BIT(5)		/* Interrupt Reset */
+#define SCRST	BIT(4)		/* SCSI Bus Reset */
+
+/* READ/WRITE */
+#define DATA(base) (STATUS(base)+1)
+#define CMD_NOP		0x00	/* No Operation */
+#define CMD_MBINIT	0x01	/* Mailbox Initialization */
+#define CMD_START_SCSI	0x02	/* Start SCSI Command */
+#define CMD_INQUIRY	0x04	/* Adapter Inquiry */
+#define CMD_EMBOI	0x05	/* Enable MailBox Out Interrupt */
+#define CMD_BUSON_TIME	0x07	/* Set Bus-On Time */
+#define CMD_BUSOFF_TIME	0x08	/* Set Bus-Off Time */
+#define CMD_DMASPEED	0x09	/* Set AT Bus Transfer Speed */
+#define CMD_RETDEVS	0x0a	/* Return Installed Devices */
+#define CMD_RETCONF	0x0b	/* Return Configuration Data */
+#define CMD_RETSETUP	0x0d	/* Return Setup Data */
+#define CMD_ECHO	0x1f	/* ECHO Command Data */
+
+#define CMD_EXTBIOS     0x28    /* Return extend bios information only 1542C */
+#define CMD_MBENABLE    0x29    /* Set Mailbox Interface enable only 1542C */
+
+/* Mailbox Definition 5.2.1 and 5.2.2 */
+struct mailbox {
+	u8 status;	/* Command/Status */
+	u8 ccbptr[3];	/* msb, .., lsb */
+};
+
+/* This is used with scatter-gather */
+struct chain {
+	u8 datalen[3];	/* Size of this part of chain */
+	u8 dataptr[3];	/* Location of data */
+};
+
+/* These belong in scsi.h also */
+static inline void any2scsi(u8 *p, u32 v)
+{
+	p[0] = v >> 16;
+	p[1] = v >> 8;
+	p[2] = v;
+}
+
+#define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) )
+
+#define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \
+		      + (((long)(up)[2]) <<  8) +  ((long)(up)[3]) )
+
+#define MAX_CDB 12
+#define MAX_SENSE 14
+
+/* Command Control Block (CCB), 5.3 */
+struct ccb {
+	u8 op;		/* Command Control Block Operation Code: */
+			/* 0x00: SCSI Initiator CCB, 0x01: SCSI Target CCB, */
+			/* 0x02: SCSI Initiator CCB with Scatter/Gather, */
+			/* 0x81: SCSI Bus Device Reset CCB */
+	u8 idlun;	/* Address and Direction Control: */
+			/* Bits 7-5: op=0, 2: Target ID, op=1: Initiator ID */
+			/* Bit	4: Outbound data transfer, length is checked */
+			/* Bit	3:  Inbound data transfer, length is checked */
+			/* Bits 2-0: Logical Unit Number */
+	u8 cdblen;	/* SCSI Command Length */
+	u8 rsalen;	/* Request Sense Allocation Length/Disable Auto Sense */
+	u8 datalen[3];	/* Data Length  (MSB, ..., LSB) */
+	u8 dataptr[3];	/* Data Pointer (MSB, ..., LSB) */
+	u8 linkptr[3];	/* Link Pointer (MSB, ..., LSB) */
+	u8 commlinkid;	/* Command Linking Identifier */
+	u8 hastat;	/* Host  Adapter Status (HASTAT) */
+	u8 tarstat;	/* Target Device Status (TARSTAT) */
+	u8 reserved[2];
+	u8 cdb[MAX_CDB + MAX_SENSE];	/* SCSI Command Descriptor Block */
+					/* followed by the Auto Sense data */
+};
+
+#define AHA1542_REGION_SIZE 4
+#define AHA1542_MAILBOXES 8
+
+#endif /* _AHA1542_H_ */