1 files changed, 151 insertions, 0 deletions

diff --git a/drivers/scsi/aha1542.h b/drivers/scsi/aha1542.h
new file mode 100644
index 000000000000..c402351dc79a
--- /dev/null
+++ b/drivers/scsi/aha1542.h
@@ -0,0 +1,151 @@
+#ifndef _AHA1542_H
+
+/* $Id: aha1542.h,v 1.1 1992/07/24 06:27:38 root Exp root $
+ *
+ * Header file for the adaptec 1542 driver for Linux
+ *
+ * $Log: aha1542.h,v $
+ * Revision 1.1  1992/07/24  06:27:38  root
+ * Initial revision
+ *
+ * Revision 1.2  1992/07/04  18:41:49  root
+ * Replaced distribution with current drivers
+ *
+ * Revision 1.3  1992/06/23  23:58:20  root
+ * Fixes.
+ *
+ * Revision 1.2  1992/05/26  22:13:23  root
+ * Changed bug that prevented DMA above first 2 mbytes.
+ *
+ * Revision 1.1  1992/05/22  21:00:29  root
+ * Initial revision
+ *
+ * Revision 1.1  1992/04/24  18:01:50  root
+ * Initial revision
+ *
+ * Revision 1.1  1992/04/02  03:23:13  drew
+ * Initial revision
+ *
+ * Revision 1.3  1992/01/27  14:46:29  tthorn
+ * *** empty log message ***
+ *
+ */
+
+#include <linux/types.h>
+
+/* I/O Port interface 4.2 */
+/* READ */
+#define STATUS(base) base
+#define STST    0x80            /* Self Test in Progress */
+#define DIAGF   0x40            /* Internal Diagnostic Failure */
+#define INIT    0x20            /* Mailbox Initialization Required */
+#define IDLE    0x10            /* SCSI Host Adapter Idle */
+#define CDF     0x08            /* Command/Data Out Port Full */
+#define DF      0x04            /* Data In Port Full */
+#define INVDCMD 0x01            /* Invalid H A Command */
+#define STATMASK 0xfd           /* 0x02 is reserved */
+
+#define INTRFLAGS(base) (STATUS(base)+2)
+#define ANYINTR 0x80            /* Any Interrupt */
+#define SCRD    0x08            /* SCSI Reset Detected */
+#define HACC    0x04            /* HA Command Complete */
+#define MBOA    0x02            /* MBO Empty */
+#define MBIF    0x01            /* MBI Full */
+#define INTRMASK 0x8f
+
+/* WRITE */
+#define CONTROL(base) STATUS(base)
+#define HRST    0x80            /* Hard Reset */
+#define SRST    0x40            /* Soft Reset */
+#define IRST    0x20            /* Interrupt Reset */
+#define SCRST   0x10            /* 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 {
+  unchar status;                /* Command/Status */
+  unchar ccbptr[3];             /* msb, .., lsb */
+};
+
+/* This is used with scatter-gather */
+struct chain {
+  unchar datalen[3];            /* Size of this part of chain */
+  unchar 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 xany2scsi(up, p)        \
+(up)[0] = ((long)(p)) >> 24;    \
+(up)[1] = ((long)(p)) >> 16;    \
+(up)[2] = ((long)(p)) >> 8;     \
+(up)[3] = ((long)(p));
+
+#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
+
+struct ccb {                    /* Command Control Block 5.3 */
+  unchar op;                    /* Command Control Block Operation Code */
+  unchar idlun;                 /* op=0,2:Target Id, op=1:Initiator Id */
+                                /* Outbound data transfer, length is checked*/
+                                /* Inbound data transfer, length is checked */
+                                /* Logical Unit Number */
+  unchar cdblen;                /* SCSI Command Length */
+  unchar rsalen;                /* Request Sense Allocation Length/Disable */
+  unchar datalen[3];            /* Data Length (msb, .., lsb) */
+  unchar dataptr[3];            /* Data Pointer */
+  unchar linkptr[3];            /* Link Pointer */
+  unchar commlinkid;            /* Command Linking Identifier */
+  unchar hastat;                /* Host Adapter Status (HASTAT) */
+  unchar tarstat;               /* Target Device Status */
+  unchar reserved[2];
+  unchar cdb[MAX_CDB+MAX_SENSE];/* SCSI Command Descriptor Block */
+                                /* REQUEST SENSE */
+};
+
+static int aha1542_detect(Scsi_Host_Template *);
+static int aha1542_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
+static int aha1542_abort(Scsi_Cmnd * SCpnt);
+static int aha1542_bus_reset(Scsi_Cmnd * SCpnt);
+static int aha1542_dev_reset(Scsi_Cmnd * SCpnt);
+static int aha1542_host_reset(Scsi_Cmnd * SCpnt);
+#if 0
+static int aha1542_old_abort(Scsi_Cmnd * SCpnt);
+static int aha1542_old_reset(Scsi_Cmnd *, unsigned int);
+#endif
+static int aha1542_biosparam(struct scsi_device *, struct block_device *,
+                sector_t, int *);
+
+#define AHA1542_MAILBOXES 8
+#define AHA1542_SCATTER 16
+#define AHA1542_CMDLUN 1
+
+#endif