![[bottom]](../icons/bottom.png){kind=icon}
![[previous]](../icons/n_left.png){kind=icon}
![[next]](../icons/n_right.png){kind=icon}
![[first]](../icons/n_first.png){kind=icon}
![[last]](../icons/n_last.png){kind=icon}
![[top]](../icons/n_top.png){kind=icon}
![[index]](../icons/index.png){kind=icon}
![[help]](../icons/help.png){kind=icon}
*/
1 /*
2 * in2000.h - Linux device driver definitions for the
3 * Always IN2000 ISA SCSI card.
4 *
5 * IMPORTANT: This file is for version 1.28 - 27/Apr/1996
6 *
7 * Copyright (c) 1996 John Shifflett, GeoLog Consulting
8 * john@geolog.com
9 * jshiffle@netcom.com
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2, or (at your option)
14 * any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 */
22
23 #ifndef IN2000_H
24 #define IN2000_H
25
26 #include <asm/io.h>
27
28 /* We include version.h to get 'LINUX_VERSION_CODE' - a define used here
29 * and there in the source to get around various compatibility problems:
30 * - pre-1.3.xx kernels didn't have 'kdev_t' or proc, and their
31 * <blk.h> was in a different place.
32 * - 1.3.70 introduced an additional argument for interrupt functions
33 * - 1.3.89 added an argument to in2000_reset(), which we don't really
34 * use at the moment. But for completeness...
35 */
36 #include <linux/version.h>
37
38
39 #define uchar unsigned char
40
41
42 /* IN2000 io_port offsets */
43 #define IO_WD_ASR 0x00 /* R - 3393 auxstat reg */
44 #define ASR_INT 0x80
45 #define ASR_LCI 0x40
46 #define ASR_BSY 0x20
47 #define ASR_CIP 0x10
48 #define ASR_PE 0x02
49 #define ASR_DBR 0x01
50 #define IO_WD_ADDR 0x00 /* W - 3393 address reg */
51 #define IO_WD_DATA 0x01 /* R/W - rest of 3393 regs */
52 #define IO_FIFO 0x02 /* R/W - in2000 dual-port fifo (16 bits) */
53 #define IN2000_FIFO_SIZE 2048 /* fifo capacity in bytes */
54 #define IO_CARD_RESET 0x03 /* W - in2000 start master reset */
55 #define IO_FIFO_COUNT 0x04 /* R - in2000 fifo counter */
56 #define IO_FIFO_WRITE 0x05 /* W - clear fifo counter, start write */
57 #define IO_FIFO_READ 0x07 /* W - start fifo read */
58 #define IO_LED_OFF 0x08 /* W - turn off in2000 activity LED */
59 #define IO_SWITCHES 0x08 /* R - read in2000 dip switch */
60 #define SW_ADDR0 0x01 /* bit 0 = bit 0 of index to io addr */
61 #define SW_ADDR1 0x02 /* bit 1 = bit 1 of index io addr */
62 #define SW_DISINT 0x04 /* bit 2 true if ints disabled */
63 #define SW_INT0 0x08 /* bit 3 = bit 0 of index to interrupt */
64 #define SW_INT1 0x10 /* bit 4 = bit 1 of index to interrupt */
65 #define SW_INT_SHIFT 3 /* shift right this amount to right justify int bits */
66 #define SW_SYNC_DOS5 0x20 /* bit 5 used by Always BIOS */
67 #define SW_FLOPPY 0x40 /* bit 6 true if floppy enabled */
68 #define SW_BIT7 0x80 /* bit 7 hardwired true (ground) */
69 #define IO_LED_ON 0x09 /* W - turn on in2000 activity LED */
70 #define IO_HARDWARE 0x0a /* R - read in2000 hardware rev, stop reset */
71 #define IO_INTR_MASK 0x0c /* W - in2000 interrupt mask reg */
72 #define IMASK_WD 0x01 /* WD33c93 interrupt mask */
73 #define IMASK_FIFO 0x02 /* FIFO interrupt mask */
74
75 /* wd register names */
76 #define WD_OWN_ID 0x00
77 #define WD_CONTROL 0x01
78 #define WD_TIMEOUT_PERIOD 0x02
79 #define WD_CDB_1 0x03
80 #define WD_CDB_2 0x04
81 #define WD_CDB_3 0x05
82 #define WD_CDB_4 0x06
83 #define WD_CDB_5 0x07
84 #define WD_CDB_6 0x08
85 #define WD_CDB_7 0x09
86 #define WD_CDB_8 0x0a
87 #define WD_CDB_9 0x0b
88 #define WD_CDB_10 0x0c
89 #define WD_CDB_11 0x0d
90 #define WD_CDB_12 0x0e
91 #define WD_TARGET_LUN 0x0f
92 #define WD_COMMAND_PHASE 0x10
93 #define WD_SYNCHRONOUS_TRANSFER 0x11
94 #define WD_TRANSFER_COUNT_MSB 0x12
95 #define WD_TRANSFER_COUNT 0x13
96 #define WD_TRANSFER_COUNT_LSB 0x14
97 #define WD_DESTINATION_ID 0x15
98 #define WD_SOURCE_ID 0x16
99 #define WD_SCSI_STATUS 0x17
100 #define WD_COMMAND 0x18
101 #define WD_DATA 0x19
102 #define WD_QUEUE_TAG 0x1a
103 #define WD_AUXILIARY_STATUS 0x1f
104
105 /* WD commands */
106 #define WD_CMD_RESET 0x00
107 #define WD_CMD_ABORT 0x01
108 #define WD_CMD_ASSERT_ATN 0x02
109 #define WD_CMD_NEGATE_ACK 0x03
110 #define WD_CMD_DISCONNECT 0x04
111 #define WD_CMD_RESELECT 0x05
112 #define WD_CMD_SEL_ATN 0x06
113 #define WD_CMD_SEL 0x07
114 #define WD_CMD_SEL_ATN_XFER 0x08
115 #define WD_CMD_SEL_XFER 0x09
116 #define WD_CMD_RESEL_RECEIVE 0x0a
117 #define WD_CMD_RESEL_SEND 0x0b
118 #define WD_CMD_WAIT_SEL_RECEIVE 0x0c
119 #define WD_CMD_TRANS_ADDR 0x18
120 #define WD_CMD_TRANS_INFO 0x20
121 #define WD_CMD_TRANSFER_PAD 0x21
122 #define WD_CMD_SBT_MODE 0x80
123
124 /* SCSI Bus Phases */
125 #define PHS_DATA_OUT 0x00
126 #define PHS_DATA_IN 0x01
127 #define PHS_COMMAND 0x02
128 #define PHS_STATUS 0x03
129 #define PHS_MESS_OUT 0x06
130 #define PHS_MESS_IN 0x07
131
132 /* Command Status Register definitions */
133
134 /* reset state interrupts */
135 #define CSR_RESET 0x00
136 #define CSR_RESET_AF 0x01
137
138 /* successful completion interrupts */
139 #define CSR_RESELECT 0x10
140 #define CSR_SELECT 0x11
141 #define CSR_SEL_XFER_DONE 0x16
142 #define CSR_XFER_DONE 0x18
143
144 /* paused or aborted interrupts */
145 #define CSR_MSGIN 0x20
146 #define CSR_SDP 0x21
147 #define CSR_SEL_ABORT 0x22
148 #define CSR_RESEL_ABORT 0x25
149 #define CSR_RESEL_ABORT_AM 0x27
150 #define CSR_ABORT 0x28
151
152 /* terminated interrupts */
153 #define CSR_INVALID 0x40
154 #define CSR_UNEXP_DISC 0x41
155 #define CSR_TIMEOUT 0x42
156 #define CSR_PARITY 0x43
157 #define CSR_PARITY_ATN 0x44
158 #define CSR_BAD_STATUS 0x45
159 #define CSR_UNEXP 0x48
160
161 /* service required interrupts */
162 #define CSR_RESEL 0x80
163 #define CSR_RESEL_AM 0x81
164 #define CSR_DISC 0x85
165 #define CSR_SRV_REQ 0x88
166
167 /* Own ID/CDB Size register */
168 #define OWNID_EAF 0x08
169 #define OWNID_EHP 0x10
170 #define OWNID_RAF 0x20
171 #define OWNID_FS_8 0x00
172 #define OWNID_FS_12 0x40
173 #define OWNID_FS_16 0x80
174
175 /* Control register */
176 #define CTRL_HSP 0x01
177 #define CTRL_HA 0x02
178 #define CTRL_IDI 0x04
179 #define CTRL_EDI 0x08
180 #define CTRL_HHP 0x10
181 #define CTRL_POLLED 0x00
182 #define CTRL_BURST 0x20
183 #define CTRL_BUS 0x40
184 #define CTRL_DMA 0x80
185
186 /* Timeout Period register */
187 #define TIMEOUT_PERIOD_VALUE 20 /* results in 200 ms. */
188
189 /* Synchronous Transfer Register */
190 #define STR_FSS 0x80
191
192 /* Destination ID register */
193 #define DSTID_DPD 0x40
194 #define DATA_OUT_DIR 0
195 #define DATA_IN_DIR 1
196 #define DSTID_SCC 0x80
197
198 /* Source ID register */
199 #define SRCID_MASK 0x07
200 #define SRCID_SIV 0x08
201 #define SRCID_DSP 0x20
202 #define SRCID_ES 0x40
203 #define SRCID_ER 0x80
204
205
206
207 #define DEFAULT_SX_PER 500 /* (ns) fairly safe */
208 #define DEFAULT_SX_OFF 0 /* aka async */
209
210 #define OPTIMUM_SX_PER 252 /* (ns) best we can do (mult-of-4) */
211 #define OPTIMUM_SX_OFF 12 /* size of in2000 fifo */
212
213 struct sx_period {
214 unsigned int period_ns;
215 uchar reg_value;
216 };
217
218
219 struct IN2000_hostdata {
220 struct Scsi_Host *next;
221 uchar chip; /* what kind of wd33c93 chip? */
222 uchar microcode; /* microcode rev if 'B' */
223 unsigned short io_base; /* IO port base */
224 unsigned int dip_switch; /* dip switch settings */
225 unsigned int hrev; /* hardware revision of card */
226 volatile uchar busy[8]; /* index = target, bit = lun */
227 volatile Scsi_Cmnd *input_Q; /* commands waiting to be started */
228 volatile Scsi_Cmnd *selecting; /* trying to select this command */
229 volatile Scsi_Cmnd *connected; /* currently connected command */
230 volatile Scsi_Cmnd *disconnected_Q;/* commands waiting for reconnect */
231 uchar state; /* what we are currently doing */
232 uchar fifo; /* what the FIFO is up to */
233 uchar level2; /* extent to which Level-2 commands are used */
234 uchar disconnect; /* disconnect/reselect policy */
235 unsigned int args; /* set from command-line argument */
236 uchar incoming_msg[8]; /* filled during message_in phase */
237 int incoming_ptr; /* mainly used with EXTENDED messages */
238 uchar outgoing_msg[8]; /* send this during next message_out */
239 int outgoing_len; /* length of outgoing message */
240 unsigned int default_sx_per; /* default transfer period for SCSI bus */
241 uchar sync_xfer[8]; /* sync_xfer reg settings per target */
242 uchar sync_stat[8]; /* status of sync negotiation per target */
243 uchar sync_off; /* bit mask: don't use sync with these targets */
244 uchar proc; /* bit mask: what's in proc output */
245 };
246
247
248 /* defines for hostdata->chip */
249
250 #define C_WD33C93 0
251 #define C_WD33C93A 1
252 #define C_WD33C93B 2
253 #define C_UNKNOWN_CHIP 100
254
255 /* defines for hostdata->state */
256
257 #define S_UNCONNECTED 0
258 #define S_SELECTING 1
259 #define S_RUNNING_LEVEL2 2
260 #define S_CONNECTED 3
261 #define S_PRE_TMP_DISC 4
262 #define S_PRE_CMP_DISC 5
263
264 /* defines for hostdata->fifo */
265
266 #define FI_FIFO_UNUSED 0
267 #define FI_FIFO_READING 1
268 #define FI_FIFO_WRITING 2
269
270 /* defines for hostdata->level2 */
271 /* NOTE: only the first 3 are trustworthy at this point -
272 * having trouble when more than 1 device is reading/writing
273 * at the same time...
274 */
275
276 #define L2_NONE 0 /* no combination commands - we get lots of ints */
277 #define L2_SELECT 1 /* start with SEL_ATN_XFER, but never resume it */
278 #define L2_BASIC 2 /* resume after STATUS ints & RDP messages */
279 #define L2_DATA 3 /* resume after DATA_IN/OUT ints */
280 #define L2_MOST 4 /* resume after anything except a RESELECT int */
281 #define L2_RESELECT 5 /* resume after everything, including RESELECT ints */
282 #define L2_ALL 6 /* always resume */
283
284 /* defines for hostdata->disconnect */
285
286 #define DIS_NEVER 0
287 #define DIS_ADAPTIVE 1
288 #define DIS_ALWAYS 2
289
290 /* defines for hostdata->args */
291
292 #define DB_TEST 1<<0
293 #define DB_FIFO 1<<1
294 #define DB_QUEUE_COMMAND 1<<2
295 #define DB_EXECUTE 1<<3
296 #define DB_INTR 1<<4
297 #define DB_TRANSFER 1<<5
298 #define DB_MASK 0x3f
299
300 #define A_NO_SCSI_RESET 1<<15
301
302
303 /* defines for hostdata->sync_xfer[] */
304
305 #define SS_UNSET 0
306 #define SS_FIRST 1
307 #define SS_WAITING 2
308 #define SS_SET 3
309
310 /* defines for hostdata->proc */
311
312 #define PR_VERSION 1<<0
313 #define PR_INFO 1<<1
314 #define PR_TOTALS 1<<2
315 #define PR_CONNECTED 1<<3
316 #define PR_INPUTQ 1<<4
317 #define PR_DISCQ 1<<5
318 #define PR_TEST 1<<6
319 #define PR_STOP 1<<7
320
321
322 int in2000_detect(Scsi_Host_Template *);
323 int in2000_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
324 int in2000_abort(Scsi_Cmnd *);
325 void in2000_setup(char *, int *);
326 int in2000_proc_info(char *, char **, off_t, int, int, int);
327 struct proc_dir_entry proc_scsi_in2000;
328
329 #if LINUX_VERSION_CODE >= 0x010300
330 int in2000_biosparam(struct scsi_disk *, kdev_t, int *);
331 #else
332 int in2000_biosparam(Disk *, int, int *);
333 #endif
334 #if LINUX_VERSION_CODE >= 0x010359 /* 1.3.89 */
335 int in2000_reset(Scsi_Cmnd *, unsigned int);
336 #else
337 int in2000_reset(Scsi_Cmnd *);
338 #endif
339
340
341 #define IN2000_CAN_Q 16
342 #define IN2000_SG SG_ALL
343 #define IN2000_CPL 2
344 #define IN2000_HOST_ID 7
345
346 #if LINUX_VERSION_CODE >= 0x010300
347 #define IN2000 { NULL, /* link pointer for modules */ \
348 NULL, /* usage_count for modules */ \
349 &proc_scsi_in2000, /* pointer to /proc/scsi directory entry */ \
350 in2000_proc_info, /* pointer to proc info function */ \
351 "Always IN2000", /* device name */ \
352 in2000_detect, /* returns number of in2000's found */ \
353 NULL, /* optional unload function for modules */ \
354 NULL, /* optional misc info function */ \
355 NULL, /* send scsi command, wait for completion */ \
356 in2000_queuecommand, /* queue scsi command, don't wait */ \
357 in2000_abort, /* abort current command */ \
358 in2000_reset, /* reset scsi bus */ \
359 NULL, /* slave_attach - unused */ \
360 in2000_biosparam, /* figures out BIOS parameters for lilo, etc */ \
361 IN2000_CAN_Q, /* max commands we can queue up */ \
362 IN2000_HOST_ID, /* host-adapter scsi id */ \
363 IN2000_SG, /* scatter-gather table size */ \
364 IN2000_CPL, /* commands per lun */ \
365 0, /* board counter */ \
366 0, /* unchecked dma */ \
367 DISABLE_CLUSTERING \
368 }
369
370 #else
371 #define IN2000 { NULL, /* link pointer for modules */ \
372 NULL, /* usage_count for modules */ \
373 /* NULL,*/ /* pointer to /proc/scsi directory entry */ \
374 /* NULL,*/ /* pointer to proc info function */ \
375 "Always IN2000", /* device name */ \
376 in2000_detect, /* returns number of in2000's found */ \
377 NULL, /* optional unload function for modules */ \
378 NULL, /* optional misc info function */ \
379 NULL, /* send scsi command, wait for completion */ \
380 in2000_queuecommand, /* queue scsi command, don't wait */ \
381 in2000_abort, /* abort current command */ \
382 in2000_reset, /* reset scsi bus */ \
383 NULL, /* slave_attach - unused */ \
384 in2000_biosparam, /* figures out BIOS parameters for lilo, etc */ \
385 IN2000_CAN_Q, /* max commands we can queue up */ \
386 IN2000_HOST_ID, /* host-adapter scsi id */ \
387 IN2000_SG, /* scatter-gather table size */ \
388 IN2000_CPL, /* commands per lun */ \
389 0, /* board counter */ \
390 0, /* unchecked dma */ \
391 DISABLE_CLUSTERING \
392 }
393 #endif
394
395
396 #endif /* IN2000_H */
![[top]](../icons/top.png){kind=icon}
![[bottom]](../icons/n_bottom.png){kind=icon}
*/