File: /usr/src/linux/drivers/scsi/aha152x.h
1 #ifndef _AHA152X_H
2 #define _AHA152X_H
3
4 /*
5 * $Id: aha152x.h,v 2.4 2000/12/16 12:48:48 fischer Exp $
6 */
7
8 #if defined(__KERNEL__)
9
10 #include <linux/blk.h>
11 #include "scsi.h"
12 #include <asm/io.h>
13 #include <linux/version.h>
14
15 int aha152x_detect(Scsi_Host_Template *);
16 int aha152x_command(Scsi_Cmnd *);
17 int aha152x_queue(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
18 int aha152x_abort(Scsi_Cmnd *);
19 int aha152x_release(struct Scsi_Host *shpnt);
20 int aha152x_device_reset(Scsi_Cmnd *);
21 int aha152x_bus_reset(Scsi_Cmnd *);
22 int aha152x_host_reset(Scsi_Cmnd *);
23 int aha152x_biosparam(Disk *, kdev_t, int*);
24 int aha152x_proc_info(char *buffer, char **start, off_t offset, int length, int hostno, int inout);
25
26 /* number of queueable commands
27 (unless we support more than 1 cmd_per_lun this should do) */
28 #define AHA152X_MAXQUEUE 7
29
30 #define AHA152X_REVID "Adaptec 152x SCSI driver; $Revision: 2.4 $"
31
32 /* Initial value of Scsi_Host entry */
33 #define AHA152X { proc_name: "aha152x", \
34 proc_info: aha152x_proc_info, \
35 name: AHA152X_REVID, \
36 detect: aha152x_detect, \
37 command: aha152x_command, \
38 queuecommand: aha152x_queue, \
39 eh_abort_handler: aha152x_abort, \
40 eh_device_reset_handler: aha152x_device_reset, \
41 eh_bus_reset_handler: aha152x_bus_reset, \
42 eh_host_reset_handler: aha152x_host_reset, \
43 release: aha152x_release, \
44 slave_attach: 0, \
45 bios_param: aha152x_biosparam, \
46 can_queue: 1, \
47 this_id: 7, \
48 sg_tablesize: SG_ALL, \
49 cmd_per_lun: 1, \
50 present: 0, \
51 unchecked_isa_dma: 0, \
52 use_clustering: DISABLE_CLUSTERING, \
53 use_new_eh_code: 1 }
54 #endif
55
56
57 /* port addresses */
58 #define SCSISEQ (HOSTIOPORT0+0x00) /* SCSI sequence control */
59 #define SXFRCTL0 (HOSTIOPORT0+0x01) /* SCSI transfer control 0 */
60 #define SXFRCTL1 (HOSTIOPORT0+0x02) /* SCSI transfer control 1 */
61 #define SCSISIG (HOSTIOPORT0+0x03) /* SCSI signal in/out */
62 #define SCSIRATE (HOSTIOPORT0+0x04) /* SCSI rate control */
63 #define SELID (HOSTIOPORT0+0x05) /* selection/reselection ID */
64 #define SCSIID SELID /* SCSI ID */
65 #define SCSIDAT (HOSTIOPORT0+0x06) /* SCSI latched data */
66 #define SCSIBUS (HOSTIOPORT0+0x07) /* SCSI data bus */
67 #define STCNT0 (HOSTIOPORT0+0x08) /* SCSI transfer count 0 */
68 #define STCNT1 (HOSTIOPORT0+0x09) /* SCSI transfer count 1 */
69 #define STCNT2 (HOSTIOPORT0+0x0a) /* SCSI transfer count 2 */
70 #define SSTAT0 (HOSTIOPORT0+0x0b) /* SCSI interrupt status 0 */
71 #define SSTAT1 (HOSTIOPORT0+0x0c) /* SCSI interrupt status 1 */
72 #define SSTAT2 (HOSTIOPORT0+0x0d) /* SCSI interrupt status 2 */
73 #define SCSITEST (HOSTIOPORT0+0x0e) /* SCSI test control */
74 #define SSTAT3 SCSITEST /* SCSI interrupt status 3 */
75 #define SSTAT4 (HOSTIOPORT0+0x0f) /* SCSI status 4 */
76 #define SIMODE0 (HOSTIOPORT1+0x10) /* SCSI interrupt mode 0 */
77 #define SIMODE1 (HOSTIOPORT1+0x11) /* SCSI interrupt mode 1 */
78 #define DMACNTRL0 (HOSTIOPORT1+0x12) /* DMA control 0 */
79 #define DMACNTRL1 (HOSTIOPORT1+0x13) /* DMA control 1 */
80 #define DMASTAT (HOSTIOPORT1+0x14) /* DMA status */
81 #define FIFOSTAT (HOSTIOPORT1+0x15) /* FIFO status */
82 #define DATAPORT (HOSTIOPORT1+0x16) /* DATA port */
83 #define BRSTCNTRL (HOSTIOPORT1+0x18) /* burst control */
84 #define PORTA (HOSTIOPORT1+0x1a) /* PORT A */
85 #define PORTB (HOSTIOPORT1+0x1b) /* PORT B */
86 #define REV (HOSTIOPORT1+0x1c) /* revision */
87 #define STACK (HOSTIOPORT1+0x1d) /* stack */
88 #define TEST (HOSTIOPORT1+0x1e) /* test register */
89
90 #define IO_RANGE 0x20
91
92 /* used in aha152x_porttest */
93 #define O_PORTA 0x1a /* PORT A */
94 #define O_PORTB 0x1b /* PORT B */
95 #define O_DMACNTRL1 0x13 /* DMA control 1 */
96 #define O_STACK 0x1d /* stack */
97
98 /* used in tc1550_porttest */
99 #define O_TC_PORTA 0x0a /* PORT A */
100 #define O_TC_PORTB 0x0b /* PORT B */
101 #define O_TC_DMACNTRL1 0x03 /* DMA control 1 */
102 #define O_TC_STACK 0x0d /* stack */
103
104 /* bits and bitmasks to ports */
105
106 /* SCSI sequence control */
107 #define TEMODEO 0x80
108 #define ENSELO 0x40
109 #define ENSELI 0x20
110 #define ENRESELI 0x10
111 #define ENAUTOATNO 0x08
112 #define ENAUTOATNI 0x04
113 #define ENAUTOATNP 0x02
114 #define SCSIRSTO 0x01
115
116 /* SCSI transfer control 0 */
117 #define SCSIEN 0x80
118 #define DMAEN 0x40
119 #define CH1 0x20
120 #define CLRSTCNT 0x10
121 #define SPIOEN 0x08
122 #define CLRCH1 0x02
123
124 /* SCSI transfer control 1 */
125 #define BITBUCKET 0x80
126 #define SWRAPEN 0x40
127 #define ENSPCHK 0x20
128 #define STIMESEL 0x18 /* mask */
129 #define STIMESEL_ 3
130 #define ENSTIMER 0x04
131 #define BYTEALIGN 0x02
132
133 /* SCSI signal IN */
134 #define SIG_CDI 0x80
135 #define SIG_IOI 0x40
136 #define SIG_MSGI 0x20
137 #define SIG_ATNI 0x10
138 #define SIG_SELI 0x08
139 #define SIG_BSYI 0x04
140 #define SIG_REQI 0x02
141 #define SIG_ACKI 0x01
142
143 /* SCSI Phases */
144 #define P_MASK (SIG_MSGI|SIG_CDI|SIG_IOI)
145 #define P_DATAO (0)
146 #define P_DATAI (SIG_IOI)
147 #define P_CMD (SIG_CDI)
148 #define P_STATUS (SIG_CDI|SIG_IOI)
149 #define P_MSGO (SIG_MSGI|SIG_CDI)
150 #define P_MSGI (SIG_MSGI|SIG_CDI|SIG_IOI)
151
152 /* SCSI signal OUT */
153 #define SIG_CDO 0x80
154 #define SIG_IOO 0x40
155 #define SIG_MSGO 0x20
156 #define SIG_ATNO 0x10
157 #define SIG_SELO 0x08
158 #define SIG_BSYO 0x04
159 #define SIG_REQO 0x02
160 #define SIG_ACKO 0x01
161
162 /* SCSI rate control */
163 #define SXFR 0x70 /* mask */
164 #define SXFR_ 4
165 #define SOFS 0x0f /* mask */
166
167 /* SCSI ID */
168 #define OID 0x70
169 #define OID_ 4
170 #define TID 0x07
171
172 /* SCSI transfer count */
173 #define GETSTCNT() ( (GETPORT(STCNT2)<<16) \
174 + (GETPORT(STCNT1)<< 8) \
175 + GETPORT(STCNT0) )
176
177 #define SETSTCNT(X) { SETPORT(STCNT2, ((X) & 0xFF0000) >> 16); \
178 SETPORT(STCNT1, ((X) & 0x00FF00) >> 8); \
179 SETPORT(STCNT0, ((X) & 0x0000FF) ); }
180
181 /* SCSI interrupt status */
182 #define TARGET 0x80
183 #define SELDO 0x40
184 #define SELDI 0x20
185 #define SELINGO 0x10
186 #define SWRAP 0x08
187 #define SDONE 0x04
188 #define SPIORDY 0x02
189 #define DMADONE 0x01
190
191 #define SETSDONE 0x80
192 #define CLRSELDO 0x40
193 #define CLRSELDI 0x20
194 #define CLRSELINGO 0x10
195 #define CLRSWRAP 0x08
196 #define CLRSDONE 0x04
197 #define CLRSPIORDY 0x02
198 #define CLRDMADONE 0x01
199
200 /* SCSI status 1 */
201 #define SELTO 0x80
202 #define ATNTARG 0x40
203 #define SCSIRSTI 0x20
204 #define PHASEMIS 0x10
205 #define BUSFREE 0x08
206 #define SCSIPERR 0x04
207 #define PHASECHG 0x02
208 #define REQINIT 0x01
209
210 #define CLRSELTIMO 0x80
211 #define CLRATNO 0x40
212 #define CLRSCSIRSTI 0x20
213 #define CLRBUSFREE 0x08
214 #define CLRSCSIPERR 0x04
215 #define CLRPHASECHG 0x02
216 #define CLRREQINIT 0x01
217
218 /* SCSI status 2 */
219 #define SOFFSET 0x20
220 #define SEMPTY 0x10
221 #define SFULL 0x08
222 #define SFCNT 0x07 /* mask */
223
224 /* SCSI status 3 */
225 #define SCSICNT 0xf0 /* mask */
226 #define SCSICNT_ 4
227 #define OFFCNT 0x0f /* mask */
228
229 /* SCSI TEST control */
230 #define SCTESTU 0x08
231 #define SCTESTD 0x04
232 #define STCTEST 0x01
233
234 /* SCSI status 4 */
235 #define SYNCERR 0x04
236 #define FWERR 0x02
237 #define FRERR 0x01
238
239 #define CLRSYNCERR 0x04
240 #define CLRFWERR 0x02
241 #define CLRFRERR 0x01
242
243 /* SCSI interrupt mode 0 */
244 #define ENSELDO 0x40
245 #define ENSELDI 0x20
246 #define ENSELINGO 0x10
247 #define ENSWRAP 0x08
248 #define ENSDONE 0x04
249 #define ENSPIORDY 0x02
250 #define ENDMADONE 0x01
251
252 /* SCSI interrupt mode 1 */
253 #define ENSELTIMO 0x80
254 #define ENATNTARG 0x40
255 #define ENSCSIRST 0x20
256 #define ENPHASEMIS 0x10
257 #define ENBUSFREE 0x08
258 #define ENSCSIPERR 0x04
259 #define ENPHASECHG 0x02
260 #define ENREQINIT 0x01
261
262 /* DMA control 0 */
263 #define ENDMA 0x80
264 #define _8BIT 0x40
265 #define DMA 0x20
266 #define WRITE_READ 0x08
267 #define INTEN 0x04
268 #define RSTFIFO 0x02
269 #define SWINT 0x01
270
271 /* DMA control 1 */
272 #define PWRDWN 0x80
273 #define STK 0x07 /* mask */
274
275 /* DMA status */
276 #define ATDONE 0x80
277 #define WORDRDY 0x40
278 #define INTSTAT 0x20
279 #define DFIFOFULL 0x10
280 #define DFIFOEMP 0x08
281
282 /* BURST control */
283 #define BON 0xf0
284 #define BOFF 0x0f
285
286 /* TEST REGISTER */
287 #define BOFFTMR 0x40
288 #define BONTMR 0x20
289 #define STCNTH 0x10
290 #define STCNTM 0x08
291 #define STCNTL 0x04
292 #define SCSIBLK 0x02
293 #define DMABLK 0x01
294
295 /* On the AHA-152x board PORTA and PORTB contain
296 some information about the board's configuration. */
297 typedef union {
298 struct {
299 unsigned reserved:2; /* reserved */
300 unsigned tardisc:1; /* Target disconnect: 0=disabled, 1=enabled */
301 unsigned syncneg:1; /* Initial sync neg: 0=disabled, 1=enabled */
302 unsigned msgclasses:2; /* Message classes
303 0=#4
304 1=#0, #1, #2, #3, #4
305 2=#0, #3, #4
306 3=#0, #4
307 */
308 unsigned boot:1; /* boot: 0=disabled, 1=enabled */
309 unsigned dma:1; /* Transfer mode: 0=PIO; 1=DMA */
310 unsigned id:3; /* SCSI-id */
311 unsigned irq:2; /* IRQ-Channel: 0,3=12, 1=10, 2=11 */
312 unsigned dmachan:2; /* DMA-Channel: 0=0, 1=5, 2=6, 3=7 */
313 unsigned parity:1; /* SCSI-parity: 1=enabled 0=disabled */
314 } fields;
315 unsigned short port;
316 } aha152x_config ;
317
318 #define cf_parity fields.parity
319 #define cf_dmachan fields.dmachan
320 #define cf_irq fields.irq
321 #define cf_id fields.id
322 #define cf_dma fields.dma
323 #define cf_boot fields.boot
324 #define cf_msgclasses fields.msgclasses
325 #define cf_syncneg fields.syncneg
326 #define cf_tardisc fields.tardisc
327 #define cf_port port
328
329 /* Some macros to manipulate ports and their bits */
330
331 #define SETPORT(PORT, VAL) outb( (VAL), (PORT) )
332 #define GETPORT(PORT) inb( PORT )
333 #define SETBITS(PORT, BITS) outb( (inb(PORT) | (BITS)), (PORT) )
334 #define CLRBITS(PORT, BITS) outb( (inb(PORT) & ~(BITS)), (PORT) )
335 #define TESTHI(PORT, BITS) ((inb(PORT) & (BITS)) == (BITS))
336 #define TESTLO(PORT, BITS) ((inb(PORT) & (BITS)) == 0)
337
338 #define SETRATE(RATE) SETPORT(SCSIRATE,(RATE) & 0x7f)
339
340 #if defined(AHA152X_DEBUG)
341 enum {
342 debug_procinfo = 0x0001,
343 debug_queue = 0x0002,
344 debug_locks = 0x0004,
345 debug_intr = 0x0008,
346 debug_selection = 0x0010,
347 debug_msgo = 0x0020,
348 debug_msgi = 0x0040,
349 debug_status = 0x0080,
350 debug_cmd = 0x0100,
351 debug_datai = 0x0200,
352 debug_datao = 0x0400,
353 debug_eh = 0x0800,
354 debug_done = 0x1000,
355 debug_phases = 0x2000,
356 };
357 #endif
358
359 #endif /* _AHA152X_H */
360