3 /* $Id: aha1542.h,v 1.1 1992/07/24 06:27:38 root Exp root $
5 * Header file for the adaptec 1542 driver for Linux
8 * Revision 1.1 1992/07/24 06:27:38 root
11 * Revision 1.2 1992/07/04 18:41:49 root
12 * Replaced distribution with current drivers
14 * Revision 1.3 1992/06/23 23:58:20 root
17 * Revision 1.2 1992/05/26 22:13:23 root
18 * Changed bug that prevented DMA above first 2 mbytes.
20 * Revision 1.1 1992/05/22 21:00:29 root
23 * Revision 1.1 1992/04/24 18:01:50 root
26 * Revision 1.1 1992/04/02 03:23:13 drew
29 * Revision 1.3 1992/01/27 14:46:29 tthorn
30 * *** empty log message ***
34 #include <linux/types.h>
36 /* I/O Port interface 4.2 */
38 #define STATUS(base) base
39 #define STST BIT(7) /* Self Test in Progress */
40 #define DIAGF BIT(6) /* Internal Diagnostic Failure */
41 #define INIT BIT(5) /* Mailbox Initialization Required */
42 #define IDLE BIT(4) /* SCSI Host Adapter Idle */
43 #define CDF BIT(3) /* Command/Data Out Port Full */
44 #define DF BIT(2) /* Data In Port Full */
45 /* BIT(1) is reserved */
46 #define INVDCMD BIT(0) /* Invalid H A Command */
47 #define STATMASK (STST | DIAGF | INIT | IDLE | CDF | DF | INVDCMD)
49 #define INTRFLAGS(base) (STATUS(base)+2)
50 #define ANYINTR BIT(7) /* Any Interrupt */
51 #define SCRD BIT(3) /* SCSI Reset Detected */
52 #define HACC BIT(2) /* HA Command Complete */
53 #define MBOA BIT(1) /* MBO Empty */
54 #define MBIF BIT(0) /* MBI Full */
55 #define INTRMASK (ANYINTR | SCRD | HACC | MBOA | MBIF)
58 #define CONTROL(base) STATUS(base)
59 #define HRST BIT(7) /* Hard Reset */
60 #define SRST BIT(6) /* Soft Reset */
61 #define IRST BIT(5) /* Interrupt Reset */
62 #define SCRST BIT(4) /* SCSI Bus Reset */
65 #define DATA(base) (STATUS(base)+1)
66 #define CMD_NOP 0x00 /* No Operation */
67 #define CMD_MBINIT 0x01 /* Mailbox Initialization */
68 #define CMD_START_SCSI 0x02 /* Start SCSI Command */
69 #define CMD_INQUIRY 0x04 /* Adapter Inquiry */
70 #define CMD_EMBOI 0x05 /* Enable MailBox Out Interrupt */
71 #define CMD_BUSON_TIME 0x07 /* Set Bus-On Time */
72 #define CMD_BUSOFF_TIME 0x08 /* Set Bus-Off Time */
73 #define CMD_DMASPEED 0x09 /* Set AT Bus Transfer Speed */
74 #define CMD_RETDEVS 0x0a /* Return Installed Devices */
75 #define CMD_RETCONF 0x0b /* Return Configuration Data */
76 #define CMD_RETSETUP 0x0d /* Return Setup Data */
77 #define CMD_ECHO 0x1f /* ECHO Command Data */
79 #define CMD_EXTBIOS 0x28 /* Return extend bios information only 1542C */
80 #define CMD_MBENABLE 0x29 /* Set Mailbox Interface enable only 1542C */
82 /* Mailbox Definition 5.2.1 and 5.2.2 */
84 u8 status; /* Command/Status */
85 u8 ccbptr[3]; /* msb, .., lsb */
88 /* This is used with scatter-gather */
90 u8 datalen[3]; /* Size of this part of chain */
91 u8 dataptr[3]; /* Location of data */
94 /* These belong in scsi.h also */
95 static inline void any2scsi(u8 *p, u32 v)
102 #define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) )
104 #define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \
105 + (((long)(up)[2]) << 8) + ((long)(up)[3]) )
110 struct ccb { /* Command Control Block 5.3 */
111 u8 op; /* Command Control Block Operation Code */
112 u8 idlun; /* op=0,2:Target Id, op=1:Initiator Id */
113 /* Outbound data transfer, length is checked*/
114 /* Inbound data transfer, length is checked */
115 /* Logical Unit Number */
116 u8 cdblen; /* SCSI Command Length */
117 u8 rsalen; /* Request Sense Allocation Length/Disable */
118 u8 datalen[3]; /* Data Length (msb, .., lsb) */
119 u8 dataptr[3]; /* Data Pointer */
120 u8 linkptr[3]; /* Link Pointer */
121 u8 commlinkid; /* Command Linking Identifier */
122 u8 hastat; /* Host Adapter Status (HASTAT) */
123 u8 tarstat; /* Target Device Status */
125 u8 cdb[MAX_CDB+MAX_SENSE]; /* SCSI Command Descriptor Block */
129 #define AHA1542_MAILBOXES 8