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1.1 root 1: #ifndef _AHA1740_H
2:
3: /* $Id: aha1740.h,v 1.1 1999/04/26 05:54:13 tb Exp $
4: *
5: * Header file for the adaptec 1740 driver for Linux
6: *
7: * With minor revisions 3/31/93
8: * Written and (C) 1992,1993 Brad McLean. See aha1740.c
9: * for more info
10: *
11: */
12:
13: #include <linux/types.h>
14: #include <linux/kdev_t.h>
15:
16: /* Eisa Enhanced mode operation - slot locating and addressing */
17: #define MINEISA 1 /* I don't have an EISA Spec to know these ranges, so I */
18: #define MAXEISA 8 /* Just took my machine's specifications. Adjust to fit.*/
19: /* I just saw an ad, and bumped this from 6 to 8 */
20: #define SLOTBASE(x) ((x << 12) + 0xc80)
21: #define SLOTSIZE 0x5c
22:
23: /* EISA configuration registers & values */
24: #define HID0(base) (base + 0x0)
25: #define HID1(base) (base + 0x1)
26: #define HID2(base) (base + 0x2)
27: #define HID3(base) (base + 0x3)
28: #define EBCNTRL(base) (base + 0x4)
29: #define PORTADR(base) (base + 0x40)
30: #define BIOSADR(base) (base + 0x41)
31: #define INTDEF(base) (base + 0x42)
32: #define SCSIDEF(base) (base + 0x43)
33: #define BUSDEF(base) (base + 0x44)
34: #define RESV0(base) (base + 0x45)
35: #define RESV1(base) (base + 0x46)
36: #define RESV2(base) (base + 0x47)
37:
38: #define HID_MFG "ADP"
39: #define HID_PRD 0
40: #define HID_REV 2
41: #define EBCNTRL_VALUE 1
42: #define PORTADDR_ENH 0x80
43: /* READ */
44: #define G2INTST(base) (base + 0x56)
45: #define G2STAT(base) (base + 0x57)
46: #define MBOXIN0(base) (base + 0x58)
47: #define MBOXIN1(base) (base + 0x59)
48: #define MBOXIN2(base) (base + 0x5a)
49: #define MBOXIN3(base) (base + 0x5b)
50: #define G2STAT2(base) (base + 0x5c)
51:
52: #define G2INTST_MASK 0xf0 /* isolate the status */
53: #define G2INTST_CCBGOOD 0x10 /* CCB Completed */
54: #define G2INTST_CCBRETRY 0x50 /* CCB Completed with a retry */
55: #define G2INTST_HARDFAIL 0x70 /* Adapter Hardware Failure */
56: #define G2INTST_CMDGOOD 0xa0 /* Immediate command success */
57: #define G2INTST_CCBERROR 0xc0 /* CCB Completed with error */
58: #define G2INTST_ASNEVENT 0xd0 /* Asynchronous Event Notification */
59: #define G2INTST_CMDERROR 0xe0 /* Immediate command error */
60:
61: #define G2STAT_MBXOUT 4 /* Mailbox Out Empty Bit */
62: #define G2STAT_INTPEND 2 /* Interrupt Pending Bit */
63: #define G2STAT_BUSY 1 /* Busy Bit (attention pending) */
64:
65: #define G2STAT2_READY 0 /* Host Ready Bit */
66:
67: /* WRITE (and ReadBack) */
68: #define MBOXOUT0(base) (base + 0x50)
69: #define MBOXOUT1(base) (base + 0x51)
70: #define MBOXOUT2(base) (base + 0x52)
71: #define MBOXOUT3(base) (base + 0x53)
72: #define ATTN(base) (base + 0x54)
73: #define G2CNTRL(base) (base + 0x55)
74:
75: #define ATTN_IMMED 0x10 /* Immediate Command */
76: #define ATTN_START 0x40 /* Start CCB */
77: #define ATTN_ABORT 0x50 /* Abort CCB */
78:
79: #define G2CNTRL_HRST 0x80 /* Hard Reset */
80: #define G2CNTRL_IRST 0x40 /* Clear EISA Interrupt */
81: #define G2CNTRL_HRDY 0x20 /* Sets HOST ready */
82:
83: /* This is used with scatter-gather */
84: struct aha1740_chain {
85: u32 dataptr; /* Location of data */
86: u32 datalen; /* Size of this part of chain */
87: };
88:
89: /* These belong in scsi.h */
90: #define any2scsi(up, p) \
91: (up)[0] = (((unsigned long)(p)) >> 16) ; \
92: (up)[1] = (((unsigned long)(p)) >> 8); \
93: (up)[2] = ((unsigned long)(p));
94:
95: #define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) )
96:
97: #define xany2scsi(up, p) \
98: (up)[0] = ((long)(p)) >> 24; \
99: (up)[1] = ((long)(p)) >> 16; \
100: (up)[2] = ((long)(p)) >> 8; \
101: (up)[3] = ((long)(p));
102:
103: #define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \
104: + (((long)(up)[2]) << 8) + ((long)(up)[3]) )
105:
106: #define MAX_CDB 12
107: #define MAX_SENSE 14
108: #define MAX_STATUS 32
109:
110: struct ecb { /* Enhanced Control Block 6.1 */
111: u16 cmdw; /* Command Word */
112: /* Flag Word 1 */
113: u16 cne:1, /* Control Block Chaining */
114: :6, di:1, /* Disable Interrupt */
115: :2, ses:1, /* Suppress Underrun error */
116: :1, sg:1, /* Scatter/Gather */
117: :1, dsb:1, /* Disable Status Block */
118: ars:1; /* Automatic Request Sense */
119: /* Flag Word 2 */
120: u16 lun:3, /* Logical Unit */
121: tag:1, /* Tagged Queuing */
122: tt:2, /* Tag Type */
123: nd:1, /* No Disconnect */
124: :1, dat:1, /* Data transfer - check direction */
125: dir:1, /* Direction of transfer 1 = datain */
126: st:1, /* Suppress Transfer */
127: chk:1, /* Calculate Checksum */
128: :2, rec:1, :1; /* Error Recovery */
129: u16 nil0; /* nothing */
130: u32 dataptr; /* Data or Scatter List ptr */
131: u32 datalen; /* Data or Scatter List len */
132: u32 statusptr; /* Status Block ptr */
133: u32 linkptr; /* Chain Address */
134: u32 nil1; /* nothing */
135: u32 senseptr; /* Sense Info Pointer */
136: u8 senselen; /* Sense Length */
137: u8 cdblen; /* CDB Length */
138: u16 datacheck; /* Data checksum */
139: u8 cdb[MAX_CDB]; /* CDB area */
140: /* Hardware defined portion ends here, rest is driver defined */
141: u8 sense[MAX_SENSE]; /* Sense area */
142: u8 status[MAX_STATUS]; /* Status area */
143: Scsi_Cmnd *SCpnt; /* Link to the SCSI Command Block */
144: void (*done)(Scsi_Cmnd *); /* Completion Function */
145: };
146:
147: #define AHA1740CMD_NOP 0x00 /* No OP */
148: #define AHA1740CMD_INIT 0x01 /* Initiator SCSI Command */
149: #define AHA1740CMD_DIAG 0x05 /* Run Diagnostic Command */
150: #define AHA1740CMD_SCSI 0x06 /* Initialize SCSI */
151: #define AHA1740CMD_SENSE 0x08 /* Read Sense Information */
152: #define AHA1740CMD_DOWN 0x09 /* Download Firmware (yeah, I bet!) */
153: #define AHA1740CMD_RINQ 0x0a /* Read Host Adapter Inquiry Data */
154: #define AHA1740CMD_TARG 0x10 /* Target SCSI Command */
155:
156: int aha1740_detect(Scsi_Host_Template *);
157: int aha1740_command(Scsi_Cmnd *);
158: int aha1740_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
159: int aha1740_abort(Scsi_Cmnd *);
160: int aha1740_reset(Scsi_Cmnd *, unsigned int);
161: int aha1740_biosparam(Disk *, kdev_t, int*);
162: int aha1740_proc_info(char *buffer, char **start, off_t offset,
163: int length, int hostno, int inout);
164:
165: #define AHA1740_ECBS 32
166: #define AHA1740_SCATTER 16
167: #define AHA1740_CMDLUN 1
168:
169: #ifndef NULL
170: #define NULL 0
171: #endif
172:
173: extern struct proc_dir_entry proc_scsi_aha1740;
174:
175: #define AHA1740 {NULL, NULL, \
176: &proc_scsi_aha1740, \
177: aha1740_proc_info, \
178: "Adaptec 174x (EISA)", \
179: aha1740_detect, \
180: NULL, \
181: NULL, \
182: aha1740_command, \
183: aha1740_queuecommand, \
184: aha1740_abort, \
185: aha1740_reset, \
186: NULL, \
187: aha1740_biosparam, \
188: AHA1740_ECBS, \
189: 7, \
190: AHA1740_SCATTER, \
191: AHA1740_CMDLUN, \
192: 0, \
193: 0, \
194: ENABLE_CLUSTERING}
195:
196: #endif
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