5 * Header file for the adaptec 1740 driver for Linux
7 * With minor revisions 3/31/93
8 * Written and (C) 1992,1993 Brad McLean. See aha1740.c
13 #include <linux/types.h>
14 #include <linux/kdev_t.h>
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)
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)
41 #define EBCNTRL_VALUE 1
42 #define PORTADDR_ENH 0x80
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)
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 */
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) */
65 #define G2STAT2_READY 0 /* Host Ready Bit */
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)
75 #define ATTN_IMMED 0x10 /* Immediate Command */
76 #define ATTN_START 0x40 /* Start CCB */
77 #define ATTN_ABORT 0x50 /* Abort CCB */
79 #define G2CNTRL_HRST 0x80 /* Hard Reset */
80 #define G2CNTRL_IRST 0x40 /* Clear EISA Interrupt */
81 #define G2CNTRL_HRDY 0x20 /* Sets HOST ready */
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 */
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));
95 #define scsi2int(up) ( (((long)*(up)) << 16) + (((long)(up)[1]) << 8) + ((long)(up)[2]) )
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));
103 #define xscsi2int(up) ( (((long)(up)[0]) << 24) + (((long)(up)[1]) << 16) \
104 + (((long)(up)[2]) << 8) + ((long)(up)[3]) )
108 #define MAX_STATUS 32
110 struct ecb { /* Enhanced Control Block 6.1 */
111 u16 cmdw; /* Command Word */
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 */
120 u16 lun:3, /* Logical Unit */
121 tag:1, /* Tagged Queuing */
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 */
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 */
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);
165 #define AHA1740_ECBS 32
166 #define AHA1740_SCATTER 16
167 #define AHA1740_CMDLUN 1
173 #define AHA1740 { proc_name: "aha1740", \
174 proc_info: aha1740_proc_info, \
175 name: "Adaptec 174x (EISA)", \
176 detect: aha1740_detect, \
177 command: aha1740_command, \
178 queuecommand: aha1740_queuecommand, \
179 abort: aha1740_abort, \
180 reset: aha1740_reset, \
181 bios_param: aha1740_biosparam, \
182 can_queue: AHA1740_ECBS, \
184 sg_tablesize: AHA1740_SCATTER, \
185 cmd_per_lun: AHA1740_CMDLUN, \
186 use_clustering: ENABLE_CLUSTERING}