3 /* $Id: aha1542.h,v 1.1.1.1 2005/04/11 02:50:35 jack Exp $
5 * Header file for the adaptec 1542 driver for Linux
8 * Revision 1.1.1.1 2005/04/11 02:50:35 jack
11 * Revision 1.1.1.1 2005/01/10 13:16:34 jack
14 * Revision 1.1 1992/07/24 06:27:38 root
17 * Revision 1.2 1992/07/04 18:41:49 root
18 * Replaced distribution with current drivers
20 * Revision 1.3 1992/06/23 23:58:20 root
23 * Revision 1.2 1992/05/26 22:13:23 root
24 * Changed bug that prevented DMA above first 2 mbytes.
26 * Revision 1.1 1992/05/22 21:00:29 root
29 * Revision 1.1 1992/04/24 18:01:50 root
32 * Revision 1.1 1992/04/02 03:23:13 drew
35 * Revision 1.3 1992/01/27 14:46:29 tthorn
36 * *** empty log message ***
40 #include <linux/types.h>
41 #include <linux/kdev_t.h>
43 /* I/O Port interface 4.2 */
45 #define STATUS(base) base
46 #define STST 0x80 /* Self Test in Progress */
47 #define DIAGF 0x40 /* Internal Diagnostic Failure */
48 #define INIT 0x20 /* Mailbox Initialization Required */
49 #define IDLE 0x10 /* SCSI Host Adapter Idle */
50 #define CDF 0x08 /* Command/Data Out Port Full */
51 #define DF 0x04 /* Data In Port Full */
52 #define INVDCMD 0x01 /* Invalid H A Command */
53 #define STATMASK 0xfd /* 0x02 is reserved */
55 #define INTRFLAGS(base) (STATUS(base)+2)
56 #define ANYINTR 0x80 /* Any Interrupt */
57 #define SCRD 0x08 /* SCSI Reset Detected */
58 #define HACC 0x04 /* HA Command Complete */
59 #define MBOA 0x02 /* MBO Empty */
60 #define MBIF 0x01 /* MBI Full */
64 #define CONTROL(base) STATUS(base)
65 #define HRST 0x80 /* Hard Reset */
66 #define SRST 0x40 /* Soft Reset */
67 #define IRST 0x20 /* Interrupt Reset */
68 #define SCRST 0x10 /* SCSI Bus Reset */
71 #define DATA(base) (STATUS(base)+1)
72 #define CMD_NOP 0x00 /* No Operation */
73 #define CMD_MBINIT 0x01 /* Mailbox Initialization */
74 #define CMD_START_SCSI 0x02 /* Start SCSI Command */
75 #define CMD_INQUIRY 0x04 /* Adapter Inquiry */
76 #define CMD_EMBOI 0x05 /* Enable MailBox Out Interrupt */
77 #define CMD_BUSON_TIME 0x07 /* Set Bus-On Time */
78 #define CMD_BUSOFF_TIME 0x08 /* Set Bus-Off Time */
79 #define CMD_DMASPEED 0x09 /* Set AT Bus Transfer Speed */
80 #define CMD_RETDEVS 0x0a /* Return Installed Devices */
81 #define CMD_RETCONF 0x0b /* Return Configuration Data */
82 #define CMD_RETSETUP 0x0d /* Return Setup Data */
83 #define CMD_ECHO 0x1f /* ECHO Command Data */
85 #define CMD_EXTBIOS 0x28 /* Return extend bios information only 1542C */
86 #define CMD_MBENABLE 0x29 /* Set Mailbox Interface enable only 1542C */
88 /* Mailbox Definition 5.2.1 and 5.2.2 */
90 unchar status; /* Command/Status */
91 unchar ccbptr[3]; /* msb, .., lsb */
94 /* This is used with scatter-gather */
96 unchar datalen[3]; /* Size of this part of chain */
97 unchar dataptr[3]; /* Location of data */
100 /* These belong in scsi.h also */
101 #define any2scsi(up, p) \
102 (up)[0] = (((unsigned long)(p)) >> 16) ; \
103 (up)[1] = (((unsigned long)(p)) >> 8); \
104 (up)[2] = ((unsigned long)(p));
106 #define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) )
108 #define xany2scsi(up, p) \
109 (up)[0] = ((long)(p)) >> 24; \
110 (up)[1] = ((long)(p)) >> 16; \
111 (up)[2] = ((long)(p)) >> 8; \
112 (up)[3] = ((long)(p));
114 #define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \
115 + (((long)(up)[2]) << 8) + ((long)(up)[3]) )
120 struct ccb { /* Command Control Block 5.3 */
121 unchar op; /* Command Control Block Operation Code */
122 unchar idlun; /* op=0,2:Target Id, op=1:Initiator Id */
123 /* Outbound data transfer, length is checked*/
124 /* Inbound data transfer, length is checked */
125 /* Logical Unit Number */
126 unchar cdblen; /* SCSI Command Length */
127 unchar rsalen; /* Request Sense Allocation Length/Disable */
128 unchar datalen[3]; /* Data Length (msb, .., lsb) */
129 unchar dataptr[3]; /* Data Pointer */
130 unchar linkptr[3]; /* Link Pointer */
131 unchar commlinkid; /* Command Linking Identifier */
132 unchar hastat; /* Host Adapter Status (HASTAT) */
133 unchar tarstat; /* Target Device Status */
135 unchar cdb[MAX_CDB+MAX_SENSE];/* SCSI Command Descriptor Block */
139 static int aha1542_detect(Scsi_Host_Template *);
140 static int aha1542_command(Scsi_Cmnd *);
141 static int aha1542_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
142 static int aha1542_abort(Scsi_Cmnd * SCpnt);
143 static int aha1542_bus_reset(Scsi_Cmnd * SCpnt);
144 static int aha1542_dev_reset(Scsi_Cmnd * SCpnt);
145 static int aha1542_host_reset(Scsi_Cmnd * SCpnt);
146 static int aha1542_old_abort(Scsi_Cmnd * SCpnt);
147 static int aha1542_old_reset(Scsi_Cmnd *, unsigned int);
148 static int aha1542_biosparam(Disk *, kdev_t, int*);
150 #define AHA1542_MAILBOXES 8
151 #define AHA1542_SCATTER 16
152 #define AHA1542_CMDLUN 1
158 #define AHA1542 { proc_name: "aha1542", \
159 name: "Adaptec 1542", \
160 detect: aha1542_detect, \
161 command: aha1542_command, \
162 queuecommand: aha1542_queuecommand, \
163 abort: aha1542_old_abort, \
164 reset: aha1542_old_reset, \
165 eh_abort_handler: aha1542_abort, \
166 eh_device_reset_handler: aha1542_dev_reset, \
167 eh_bus_reset_handler: aha1542_bus_reset, \
168 eh_host_reset_handler: aha1542_host_reset, \
169 bios_param: aha1542_biosparam, \
170 can_queue: AHA1542_MAILBOXES, \
172 sg_tablesize: AHA1542_SCATTER, \
173 cmd_per_lun: AHA1542_CMDLUN, \
174 unchecked_isa_dma: 1, \
175 use_clustering: ENABLE_CLUSTERING, \