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1.1 root 1: #ifndef _AHA1542_H
2:
3: /* $Id: aha1542.h,v 1.1 1999/04/26 05:54:12 tb Exp $
4: *
5: * Header file for the adaptec 1542 driver for Linux
6: *
7: * $Log: aha1542.h,v $
8: * Revision 1.1 1999/04/26 05:54:12 tb
9: * 1998-11-30 OKUJI Yoshinori <[email protected]>
10: *
11: * Clean up linux emulation code to make it architecture-independent
12: * as much as possible.
13: *
14: * * linux: Renamed from linuxdev.
15: * * Makefile.in (objfiles): Add linux.o instead of linuxdev.o.
16: * (MAKE): New variable. Used for the linux.o target.
17: * * configure.in: Add AC_CHECK_TOOL(MAKE, make).
18: * * i386/i386/spl.h: Include <i386/ipl.h>, for compatibility with
19: * OSF Mach 3.0. Suggested by Elgin Lee <[email protected]>.
20: * * linux/src: Renamed from linux/linux.
21: * * linux/dev: Renamed from linux/mach.
22: * * linux/Drivers.in (AC_INIT): Use dev/include/linux/autoconf.h,
23: * instead of mach/include/linux/autoconf.h.
24: * * Makefile.in (all): Target ../linux.o instead of ../linuxdev.o.
25: * * linux/dev/drivers/block/genhd.c: Include <machine/spl.h> instead
26: * of <i386/ipl.h>.
27: * * linux/dev/drivers/net/auto_irq.c: Remove unneeded header files,
28: * <i386/ipl.h> and <i386/pic.h>.
29: * * linux/dev/init/main.c: Many i386-dependent codes moved to ...
30: * * linux/dev/arch/i386/irq.c: ... here.
31: * * linux/dev/arch/i386/setup.c: New file.
32: * * linux/dev/arch/i386/linux_emul.h: Likewise.
33: * * linux/dev/arch/i386/glue/timer.c: Merged into sched.c.
34: * * linux/dev/arch/i386/glue/sched.c: Include <machine/spl.h> instead
35: * of <i386/ipl.h>, and moved to ...
36: * * linux/dev/kernel/sched.c: ... here.
37: * * linux/dev/arch/i386/glue/block.c: Include <machine/spl.h> and
38: * <linux_emul.h>, instead of i386-dependent header files, and
39: * moved to ...
40: * * linux/dev/glue/blocl.c: ... here.
41: * * linux/dev/arch/i386/glue/net.c: Include <machine/spl.h> and
42: * <linux_emul.h>, instead of i386-dependent header files, and
43: * moved to ...
44: * * linux/dev/glue/net.c: ... here.
45: * * linux/dev/arch/i386/glue/misc.c: Remove `x86' and moved to ...
46: * * linux/dev/glue/misc.c: ... here.
47: * * linux/dev/arch/i386/glue/kmem.c: Moved to ...
48: * * linux/dev/glue/kmem.c: ... here.
49: *
50: * Revision 1.1 1992/07/24 06:27:38 root
51: * Initial revision
52: *
53: * Revision 1.2 1992/07/04 18:41:49 root
54: * Replaced distribution with current drivers
55: *
56: * Revision 1.3 1992/06/23 23:58:20 root
57: * Fixes.
58: *
59: * Revision 1.2 1992/05/26 22:13:23 root
60: * Changed bug that prevented DMA above first 2 mbytes.
61: *
62: * Revision 1.1 1992/05/22 21:00:29 root
63: * Initial revision
64: *
65: * Revision 1.1 1992/04/24 18:01:50 root
66: * Initial revision
67: *
68: * Revision 1.1 1992/04/02 03:23:13 drew
69: * Initial revision
70: *
71: * Revision 1.3 1992/01/27 14:46:29 tthorn
72: * *** empty log message ***
73: *
74: */
75:
76: #include <linux/types.h>
77: #include <linux/kdev_t.h>
78:
79: /* I/O Port interface 4.2 */
80: /* READ */
81: #define STATUS(base) base
82: #define STST 0x80 /* Self Test in Progress */
83: #define DIAGF 0x40 /* Internal Diagnostic Failure */
84: #define INIT 0x20 /* Mailbox Initialization Required */
85: #define IDLE 0x10 /* SCSI Host Adapter Idle */
86: #define CDF 0x08 /* Command/Data Out Port Full */
87: #define DF 0x04 /* Data In Port Full */
88: #define INVDCMD 0x01 /* Invalid H A Command */
89: #define STATMASK 0xfd /* 0x02 is reserved */
90:
91: #define INTRFLAGS(base) (STATUS(base)+2)
92: #define ANYINTR 0x80 /* Any Interrupt */
93: #define SCRD 0x08 /* SCSI Reset Detected */
94: #define HACC 0x04 /* HA Command Complete */
95: #define MBOA 0x02 /* MBO Empty */
96: #define MBIF 0x01 /* MBI Full */
97: #define INTRMASK 0x8f
98:
99: /* WRITE */
100: #define CONTROL(base) STATUS(base)
101: #define HRST 0x80 /* Hard Reset */
102: #define SRST 0x40 /* Soft Reset */
103: #define IRST 0x20 /* Interrupt Reset */
104: #define SCRST 0x10 /* SCSI Bus Reset */
105:
106: /* READ/WRITE */
107: #define DATA(base) (STATUS(base)+1)
108: #define CMD_NOP 0x00 /* No Operation */
109: #define CMD_MBINIT 0x01 /* Mailbox Initialization */
110: #define CMD_START_SCSI 0x02 /* Start SCSI Command */
111: #define CMD_INQUIRY 0x04 /* Adapter Inquiry */
112: #define CMD_EMBOI 0x05 /* Enable MailBox Out Interrupt */
113: #define CMD_BUSON_TIME 0x07 /* Set Bus-On Time */
114: #define CMD_BUSOFF_TIME 0x08 /* Set Bus-Off Time */
115: #define CMD_DMASPEED 0x09 /* Set AT Bus Transfer Speed */
116: #define CMD_RETDEVS 0x0a /* Return Installed Devices */
117: #define CMD_RETCONF 0x0b /* Return Configuration Data */
118: #define CMD_RETSETUP 0x0d /* Return Setup Data */
119: #define CMD_ECHO 0x1f /* ECHO Command Data */
120:
121: #define CMD_EXTBIOS 0x28 /* Return extend bios information only 1542C */
122: #define CMD_MBENABLE 0x29 /* Set Mailbox Interface enable only 1542C */
123:
124: /* Mailbox Definition 5.2.1 and 5.2.2 */
125: struct mailbox {
126: unchar status; /* Command/Status */
127: unchar ccbptr[3]; /* msb, .., lsb */
128: };
129:
130: /* This is used with scatter-gather */
131: struct chain {
132: unchar datalen[3]; /* Size of this part of chain */
133: unchar dataptr[3]; /* Location of data */
134: };
135:
136: /* These belong in scsi.h also */
137: #define any2scsi(up, p) \
138: (up)[0] = (((unsigned long)(p)) >> 16) ; \
139: (up)[1] = (((unsigned long)(p)) >> 8); \
140: (up)[2] = ((unsigned long)(p));
141:
142: #define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) )
143:
144: #define xany2scsi(up, p) \
145: (up)[0] = ((long)(p)) >> 24; \
146: (up)[1] = ((long)(p)) >> 16; \
147: (up)[2] = ((long)(p)) >> 8; \
148: (up)[3] = ((long)(p));
149:
150: #define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \
151: + (((long)(up)[2]) << 8) + ((long)(up)[3]) )
152:
153: #define MAX_CDB 12
154: #define MAX_SENSE 14
155:
156: struct ccb { /* Command Control Block 5.3 */
157: unchar op; /* Command Control Block Operation Code */
158: unchar idlun; /* op=0,2:Target Id, op=1:Initiator Id */
159: /* Outbound data transfer, length is checked*/
160: /* Inbound data transfer, length is checked */
161: /* Logical Unit Number */
162: unchar cdblen; /* SCSI Command Length */
163: unchar rsalen; /* Request Sense Allocation Length/Disable */
164: unchar datalen[3]; /* Data Length (msb, .., lsb) */
165: unchar dataptr[3]; /* Data Pointer */
166: unchar linkptr[3]; /* Link Pointer */
167: unchar commlinkid; /* Command Linking Identifier */
168: unchar hastat; /* Host Adapter Status (HASTAT) */
169: unchar tarstat; /* Target Device Status */
170: unchar reserved[2];
171: unchar cdb[MAX_CDB+MAX_SENSE];/* SCSI Command Descriptor Block */
172: /* REQUEST SENSE */
173: };
174:
175: int aha1542_detect(Scsi_Host_Template *);
176: int aha1542_command(Scsi_Cmnd *);
177: int aha1542_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
178: int aha1542_abort(Scsi_Cmnd *);
179: int aha1542_reset(Scsi_Cmnd *, unsigned int);
180: int aha1542_biosparam(Disk *, kdev_t, int*);
181:
182: #define AHA1542_MAILBOXES 8
183: #define AHA1542_SCATTER 16
184: #define AHA1542_CMDLUN 1
185:
186: #ifndef NULL
187: #define NULL 0
188: #endif
189:
190: extern struct proc_dir_entry proc_scsi_aha1542;
191:
192: #define AHA1542 { NULL, NULL, \
193: &proc_scsi_aha1542,/* proc_dir_entry */ \
194: NULL, \
195: "Adaptec 1542", \
196: aha1542_detect, \
197: NULL, \
198: NULL, \
199: aha1542_command, \
200: aha1542_queuecommand, \
201: aha1542_abort, \
202: aha1542_reset, \
203: NULL, \
204: aha1542_biosparam, \
205: AHA1542_MAILBOXES, \
206: 7, \
207: AHA1542_SCATTER, \
208: AHA1542_CMDLUN, \
209: 0, \
210: 1, \
211: ENABLE_CLUSTERING}
212:
213: #endif
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