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1 | #ifndef _AHA1542_H |
2 | |
3 | /* $Id: aha1542.h,v 1.1 1992/07/24 06:27:38 root Exp root $ |
4 | * |
5 | * Header file for the adaptec 1542 driver for Linux |
6 | * |
7 | * $Log: aha1542.h,v $ |
8 | * Revision 1.1 1992/07/24 06:27:38 root |
9 | * Initial revision |
10 | * |
11 | * Revision 1.2 1992/07/04 18:41:49 root |
12 | * Replaced distribution with current drivers |
13 | * |
14 | * Revision 1.3 1992/06/23 23:58:20 root |
15 | * Fixes. |
16 | * |
17 | * Revision 1.2 1992/05/26 22:13:23 root |
18 | * Changed bug that prevented DMA above first 2 mbytes. |
19 | * |
20 | * Revision 1.1 1992/05/22 21:00:29 root |
21 | * Initial revision |
22 | * |
23 | * Revision 1.1 1992/04/24 18:01:50 root |
24 | * Initial revision |
25 | * |
26 | * Revision 1.1 1992/04/02 03:23:13 drew |
27 | * Initial revision |
28 | * |
29 | * Revision 1.3 1992/01/27 14:46:29 tthorn |
30 | * *** empty log message *** |
31 | * |
32 | */ |
33 | |
34 | #include <linux/types.h> |
35 | |
36 | /* I/O Port interface 4.2 */ |
37 | /* READ */ |
38 | #define STATUS(base) base |
39 | #define STST 0x80 /* Self Test in Progress */ |
40 | #define DIAGF 0x40 /* Internal Diagnostic Failure */ |
41 | #define INIT 0x20 /* Mailbox Initialization Required */ |
42 | #define IDLE 0x10 /* SCSI Host Adapter Idle */ |
43 | #define CDF 0x08 /* Command/Data Out Port Full */ |
44 | #define DF 0x04 /* Data In Port Full */ |
45 | #define INVDCMD 0x01 /* Invalid H A Command */ |
46 | #define STATMASK 0xfd /* 0x02 is reserved */ |
47 | |
48 | #define INTRFLAGS(base) (STATUS(base)+2) |
49 | #define ANYINTR 0x80 /* Any Interrupt */ |
50 | #define SCRD 0x08 /* SCSI Reset Detected */ |
51 | #define HACC 0x04 /* HA Command Complete */ |
52 | #define MBOA 0x02 /* MBO Empty */ |
53 | #define MBIF 0x01 /* MBI Full */ |
54 | #define INTRMASK 0x8f |
55 | |
56 | /* WRITE */ |
57 | #define CONTROL(base) STATUS(base) |
58 | #define HRST 0x80 /* Hard Reset */ |
59 | #define SRST 0x40 /* Soft Reset */ |
60 | #define IRST 0x20 /* Interrupt Reset */ |
61 | #define SCRST 0x10 /* SCSI Bus Reset */ |
62 | |
63 | /* READ/WRITE */ |
64 | #define DATA(base) (STATUS(base)+1) |
65 | #define CMD_NOP 0x00 /* No Operation */ |
66 | #define CMD_MBINIT 0x01 /* Mailbox Initialization */ |
67 | #define CMD_START_SCSI 0x02 /* Start SCSI Command */ |
68 | #define CMD_INQUIRY 0x04 /* Adapter Inquiry */ |
69 | #define CMD_EMBOI 0x05 /* Enable MailBox Out Interrupt */ |
70 | #define CMD_BUSON_TIME 0x07 /* Set Bus-On Time */ |
71 | #define CMD_BUSOFF_TIME 0x08 /* Set Bus-Off Time */ |
72 | #define CMD_DMASPEED 0x09 /* Set AT Bus Transfer Speed */ |
73 | #define CMD_RETDEVS 0x0a /* Return Installed Devices */ |
74 | #define CMD_RETCONF 0x0b /* Return Configuration Data */ |
75 | #define CMD_RETSETUP 0x0d /* Return Setup Data */ |
76 | #define CMD_ECHO 0x1f /* ECHO Command Data */ |
77 | |
78 | #define CMD_EXTBIOS 0x28 /* Return extend bios information only 1542C */ |
79 | #define CMD_MBENABLE 0x29 /* Set Mailbox Interface enable only 1542C */ |
80 | |
81 | /* Mailbox Definition 5.2.1 and 5.2.2 */ |
82 | struct mailbox { |
83 | unchar status; /* Command/Status */ |
84 | unchar ccbptr[3]; /* msb, .., lsb */ |
85 | }; |
86 | |
87 | /* This is used with scatter-gather */ |
88 | struct chain { |
89 | unchar datalen[3]; /* Size of this part of chain */ |
90 | unchar dataptr[3]; /* Location of data */ |
91 | }; |
92 | |
93 | /* These belong in scsi.h also */ |
94 | static inline void any2scsi(u8 *p, u32 v) |
95 | { |
96 | p[0] = v >> 16; |
97 | p[1] = v >> 8; |
98 | p[2] = v; |
99 | } |
100 | |
101 | #define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) ) |
102 | |
103 | #define xany2scsi(up, p) \ |
104 | (up)[0] = ((long)(p)) >> 24; \ |
105 | (up)[1] = ((long)(p)) >> 16; \ |
106 | (up)[2] = ((long)(p)) >> 8; \ |
107 | (up)[3] = ((long)(p)); |
108 | |
109 | #define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \ |
110 | + (((long)(up)[2]) << 8) + ((long)(up)[3]) ) |
111 | |
112 | #define MAX_CDB 12 |
113 | #define MAX_SENSE 14 |
114 | |
115 | struct ccb { /* Command Control Block 5.3 */ |
116 | unchar op; /* Command Control Block Operation Code */ |
117 | unchar idlun; /* op=0,2:Target Id, op=1:Initiator Id */ |
118 | /* Outbound data transfer, length is checked*/ |
119 | /* Inbound data transfer, length is checked */ |
120 | /* Logical Unit Number */ |
121 | unchar cdblen; /* SCSI Command Length */ |
122 | unchar rsalen; /* Request Sense Allocation Length/Disable */ |
123 | unchar datalen[3]; /* Data Length (msb, .., lsb) */ |
124 | unchar dataptr[3]; /* Data Pointer */ |
125 | unchar linkptr[3]; /* Link Pointer */ |
126 | unchar commlinkid; /* Command Linking Identifier */ |
127 | unchar hastat; /* Host Adapter Status (HASTAT) */ |
128 | unchar tarstat; /* Target Device Status */ |
129 | unchar reserved[2]; |
130 | unchar cdb[MAX_CDB+MAX_SENSE];/* SCSI Command Descriptor Block */ |
131 | /* REQUEST SENSE */ |
132 | }; |
133 | |
134 | static int aha1542_detect(struct scsi_host_template *); |
135 | static int aha1542_queuecommand(struct Scsi_Host *, struct scsi_cmnd *); |
136 | static int aha1542_bus_reset(Scsi_Cmnd * SCpnt); |
137 | static int aha1542_dev_reset(Scsi_Cmnd * SCpnt); |
138 | static int aha1542_host_reset(Scsi_Cmnd * SCpnt); |
139 | #if 0 |
140 | static int aha1542_old_abort(Scsi_Cmnd * SCpnt); |
141 | static int aha1542_old_reset(Scsi_Cmnd *, unsigned int); |
142 | #endif |
143 | static int aha1542_biosparam(struct scsi_device *, struct block_device *, |
144 | sector_t, int *); |
145 | |
146 | #define AHA1542_MAILBOXES 8 |
147 | #define AHA1542_SCATTER 16 |
148 | #define AHA1542_CMDLUN 1 |
149 | |
150 | #endif |
151 |
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