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Merge branch 'for-5.12/intel-ish' into for-linus
[linux.git] / drivers / scsi / atp870u.c
CommitLineData
09c434b8 1// SPDX-License-Identifier: GPL-2.0-only
1da177e4
LT		 2/*
3 * Copyright (C) 1997 Wu Ching Chen
4 * 2.1.x update (C) 1998 Krzysztof G. Baranowski
fa195afe
AC		 5 * 2.5.x update (C) 2002 Red Hat
6 * 2.6.x update (C) 2004 Red Hat
1da177e4
LT		 7 *
8 * Marcelo Tosatti <[email protected]> : SMP fixes
9 *
10 * Wu Ching Chen : NULL pointer fixes 2000/06/02
11 * support atp876 chip
12 * enable 32 bit fifo transfer
13 * support cdrom & remove device run ultra speed
14 * fix disconnect bug 2000/12/21
15 * support atp880 chip lvd u160 2001/05/15
16 * fix prd table bug 2001/09/12 (7.1)
17 *
18 * atp885 support add by ACARD Hao Ping Lian 2005/01/05
19 */
20#include <linux/module.h>
21#include <linux/init.h>
22#include <linux/interrupt.h>
23#include <linux/kernel.h>
24#include <linux/types.h>
25#include <linux/string.h>
26#include <linux/ioport.h>
27#include <linux/delay.h>
28#include <linux/proc_fs.h>
29#include <linux/spinlock.h>
30#include <linux/pci.h>
31#include <linux/blkdev.h>
910638ae 32#include <linux/dma-mapping.h>
5a0e3ad6 33#include <linux/slab.h>
1da177e4
LT		 34#include <asm/io.h>
35
36#include <scsi/scsi.h>
37#include <scsi/scsi_cmnd.h>
38#include <scsi/scsi_device.h>
39#include <scsi/scsi_host.h>
40
41#include "atp870u.h"
42
43static struct scsi_host_template atp870u_template;
44static void send_s870(struct atp_unit *dev,unsigned char c);
4192a40f 45static void atp_is(struct atp_unit *dev, unsigned char c, bool wide_chip, unsigned char lvdmode);
1da177e4 46
6a3cebb6
OZ		 47static inline void atp_writeb_base(struct atp_unit *atp, u8 reg, u8 val)
48{
49 outb(val, atp->baseport + reg);
50}
51
d804bb25
OZ		 52static inline void atp_writew_base(struct atp_unit *atp, u8 reg, u16 val)
53{
54 outw(val, atp->baseport + reg);
55}
56
6a3cebb6
OZ		 57static inline void atp_writeb_io(struct atp_unit *atp, u8 channel, u8 reg, u8 val)
58{
59 outb(val, atp->ioport[channel] + reg);
60}
61
62static inline void atp_writew_io(struct atp_unit *atp, u8 channel, u8 reg, u16 val)
63{
64 outw(val, atp->ioport[channel] + reg);
65}
66
67static inline void atp_writeb_pci(struct atp_unit *atp, u8 channel, u8 reg, u8 val)
68{
69 outb(val, atp->pciport[channel] + reg);
70}
71
72static inline void atp_writel_pci(struct atp_unit *atp, u8 channel, u8 reg, u32 val)
73{
74 outl(val, atp->pciport[channel] + reg);
75}
76
77static inline u8 atp_readb_base(struct atp_unit *atp, u8 reg)
78{
79 return inb(atp->baseport + reg);
80}
81
d804bb25
OZ		 82static inline u16 atp_readw_base(struct atp_unit *atp, u8 reg)
83{
84 return inw(atp->baseport + reg);
85}
86
87static inline u32 atp_readl_base(struct atp_unit *atp, u8 reg)
88{
89 return inl(atp->baseport + reg);
90}
91
6a3cebb6
OZ		 92static inline u8 atp_readb_io(struct atp_unit *atp, u8 channel, u8 reg)
93{
94 return inb(atp->ioport[channel] + reg);
95}
96
97static inline u16 atp_readw_io(struct atp_unit *atp, u8 channel, u8 reg)
98{
99 return inw(atp->ioport[channel] + reg);
100}
101
102static inline u8 atp_readb_pci(struct atp_unit *atp, u8 channel, u8 reg)
103{
104 return inb(atp->pciport[channel] + reg);
105}
106
b922a449
OZ		 107static inline bool is880(struct atp_unit *atp)
108{
109 return atp->pdev->device == ATP880_DEVID1 ||
110 atp->pdev->device == ATP880_DEVID2;
111}
112
113static inline bool is885(struct atp_unit *atp)
114{
115 return atp->pdev->device == ATP885_DEVID;
116}
117
7d12e780 118static irqreturn_t atp870u_intr_handle(int irq, void *dev_id)
1da177e4
LT		 119{
120 unsigned long flags;
bc0fe4c9 121 unsigned short int id;
1da177e4
LT		 122 unsigned char i, j, c, target_id, lun,cmdp;
123 unsigned char *prd;
124 struct scsi_cmnd *workreq;
1da177e4
LT		 125 unsigned long adrcnt, k;
126#ifdef ED_DBGP
127 unsigned long l;
128#endif
1da177e4
LT		 129 struct Scsi_Host *host = dev_id;
130 struct atp_unit *dev = (struct atp_unit *)&host->hostdata;
131
132 for (c = 0; c < 2; c++) {
6a3cebb6 133 j = atp_readb_io(dev, c, 0x1f);
1da177e4 134 if ((j & 0x80) != 0)
78614ecd 135 break;
1da177e4
LT		 136 dev->in_int[c] = 0;
137 }
78614ecd
OZ		 138 if ((j & 0x80) == 0)
139 return IRQ_NONE;
1da177e4
LT		 140#ifdef ED_DBGP
141 printk("atp870u_intr_handle enter\n");
142#endif
143 dev->in_int[c] = 1;
6a3cebb6 144 cmdp = atp_readb_io(dev, c, 0x10);
1da177e4 145 if (dev->working[c] != 0) {
b922a449 146 if (is885(dev)) {
6a3cebb6
OZ		 147 if ((atp_readb_io(dev, c, 0x16) & 0x80) == 0)
148 atp_writeb_io(dev, c, 0x16, (atp_readb_io(dev, c, 0x16) | 0x80));
1da177e4 149 }
6a3cebb6 150 if ((atp_readb_pci(dev, c, 0x00) & 0x08) != 0)
1da177e4 151 {
1da177e4 152 for (k=0; k < 1000; k++) {
6a3cebb6 153 if ((atp_readb_pci(dev, c, 2) & 0x08) == 0)
78614ecd 154 break;
6a3cebb6 155 if ((atp_readb_pci(dev, c, 2) & 0x01) == 0)
78614ecd 156 break;
1da177e4
LT		 157 }
158 }
6a3cebb6 159 atp_writeb_pci(dev, c, 0, 0x00);
1da177e4 160
6a3cebb6 161 i = atp_readb_io(dev, c, 0x17);
1da177e4 162
b922a449 163 if (is885(dev))
6a3cebb6 164 atp_writeb_pci(dev, c, 2, 0x06);
1da177e4 165
6a3cebb6 166 target_id = atp_readb_io(dev, c, 0x15);
1da177e4
LT		 167
168 /*
169 * Remap wide devices onto id numbers
170 */
171
172 if ((target_id & 0x40) != 0) {
173 target_id = (target_id & 0x07) | 0x08;
174 } else {
175 target_id &= 0x07;
176 }
177
178 if ((j & 0x40) != 0) {
179 if (dev->last_cmd[c] == 0xff) {
180 dev->last_cmd[c] = target_id;
181 }
182 dev->last_cmd[c] |= 0x40;
183 }
b922a449 184 if (is885(dev))
1da177e4
LT		 185 dev->r1f[c][target_id] |= j;
186#ifdef ED_DBGP
187 printk("atp870u_intr_handle status = %x\n",i);
188#endif
189 if (i == 0x85) {
190 if ((dev->last_cmd[c] & 0xf0) != 0x40) {
191 dev->last_cmd[c] = 0xff;
192 }
b922a449 193 if (is885(dev)) {
1da177e4 194 adrcnt = 0;
6a3cebb6
OZ		 195 ((unsigned char *) &adrcnt)[2] = atp_readb_io(dev, c, 0x12);
196 ((unsigned char *) &adrcnt)[1] = atp_readb_io(dev, c, 0x13);
197 ((unsigned char *) &adrcnt)[0] = atp_readb_io(dev, c, 0x14);
22c0738b
CIK		 198 if (dev->id[c][target_id].last_len != adrcnt) {
199 k = dev->id[c][target_id].last_len;
1da177e4
LT		 200 k -= adrcnt;
201 dev->id[c][target_id].tran_len = k;
22c0738b 202 dev->id[c][target_id].last_len = adrcnt;
1da177e4
LT		 203 }
204#ifdef ED_DBGP
3a38e53e 205 printk("dev->id[c][target_id].last_len = %d dev->id[c][target_id].tran_len = %d\n",dev->id[c][target_id].last_len,dev->id[c][target_id].tran_len);
1da177e4
LT		 206#endif
207 }
208
209 /*
210 * Flip wide
211 */
212 if (dev->wide_id[c] != 0) {
6a3cebb6
OZ		 213 atp_writeb_io(dev, c, 0x1b, 0x01);
214 while ((atp_readb_io(dev, c, 0x1b) & 0x01) != 0x01)
215 atp_writeb_io(dev, c, 0x1b, 0x01);
1da177e4
LT		 216 }
217 /*
218 * Issue more commands
219 */
220 spin_lock_irqsave(dev->host->host_lock, flags);
221 if (((dev->quhd[c] != dev->quend[c]) || (dev->last_cmd[c] != 0xff)) &&
222 (dev->in_snd[c] == 0)) {
223#ifdef ED_DBGP
224 printk("Call sent_s870\n");
225#endif
226 send_s870(dev,c);
227 }
228 spin_unlock_irqrestore(dev->host->host_lock, flags);
229 /*
230 * Done
231 */
232 dev->in_int[c] = 0;
233#ifdef ED_DBGP
234 printk("Status 0x85 return\n");
235#endif
78614ecd 236 return IRQ_HANDLED;
1da177e4
LT		 237 }
238
239 if (i == 0x40) {
240 dev->last_cmd[c] |= 0x40;
241 dev->in_int[c] = 0;
78614ecd 242 return IRQ_HANDLED;
1da177e4
LT		 243 }
244
245 if (i == 0x21) {
246 if ((dev->last_cmd[c] & 0xf0) != 0x40) {
247 dev->last_cmd[c] = 0xff;
248 }
1da177e4 249 adrcnt = 0;
6a3cebb6
OZ		 250 ((unsigned char *) &adrcnt)[2] = atp_readb_io(dev, c, 0x12);
251 ((unsigned char *) &adrcnt)[1] = atp_readb_io(dev, c, 0x13);
252 ((unsigned char *) &adrcnt)[0] = atp_readb_io(dev, c, 0x14);
1da177e4
LT		 253 k = dev->id[c][target_id].last_len;
254 k -= adrcnt;
255 dev->id[c][target_id].tran_len = k;
256 dev->id[c][target_id].last_len = adrcnt;
6a3cebb6
OZ		 257 atp_writeb_io(dev, c, 0x10, 0x41);
258 atp_writeb_io(dev, c, 0x18, 0x08);
1da177e4 259 dev->in_int[c] = 0;
78614ecd 260 return IRQ_HANDLED;
1da177e4
LT		 261 }
262
b922a449 263 if (is885(dev)) {
1da177e4
LT		 264 if ((i == 0x4c) || (i == 0x4d) || (i == 0x8c) || (i == 0x8d)) {
265 if ((i == 0x4c) || (i == 0x8c))
266 i=0x48;
267 else
268 i=0x49;
269 }
270
271 }
272 if ((i == 0x80) || (i == 0x8f)) {
273#ifdef ED_DBGP
274 printk(KERN_DEBUG "Device reselect\n");
275#endif
276 lun = 0;
6a3cebb6
OZ		 277 if (cmdp == 0x44 || i == 0x80)
278 lun = atp_readb_io(dev, c, 0x1d) & 0x07;
279 else {
1da177e4
LT		 280 if ((dev->last_cmd[c] & 0xf0) != 0x40) {
281 dev->last_cmd[c] = 0xff;
282 }
283 if (cmdp == 0x41) {
284#ifdef ED_DBGP
285 printk("cmdp = 0x41\n");
286#endif
1da177e4 287 adrcnt = 0;
6a3cebb6
OZ		 288 ((unsigned char *) &adrcnt)[2] = atp_readb_io(dev, c, 0x12);
289 ((unsigned char *) &adrcnt)[1] = atp_readb_io(dev, c, 0x13);
290 ((unsigned char *) &adrcnt)[0] = atp_readb_io(dev, c, 0x14);
1da177e4
LT		 291 k = dev->id[c][target_id].last_len;
292 k -= adrcnt;
293 dev->id[c][target_id].tran_len = k;
294 dev->id[c][target_id].last_len = adrcnt;
6a3cebb6 295 atp_writeb_io(dev, c, 0x18, 0x08);
1da177e4 296 dev->in_int[c] = 0;
78614ecd 297 return IRQ_HANDLED;
1da177e4
LT		 298 } else {
299#ifdef ED_DBGP
300 printk("cmdp != 0x41\n");
301#endif
6a3cebb6 302 atp_writeb_io(dev, c, 0x10, 0x46);
1da177e4 303 dev->id[c][target_id].dirct = 0x00;
6a3cebb6
OZ		 304 atp_writeb_io(dev, c, 0x12, 0x00);
305 atp_writeb_io(dev, c, 0x13, 0x00);
306 atp_writeb_io(dev, c, 0x14, 0x00);
307 atp_writeb_io(dev, c, 0x18, 0x08);
1da177e4 308 dev->in_int[c] = 0;
78614ecd 309 return IRQ_HANDLED;
1da177e4
LT		 310 }
311 }
312 if (dev->last_cmd[c] != 0xff) {
313 dev->last_cmd[c] |= 0x40;
314 }
b922a449 315 if (is885(dev)) {
6a3cebb6
OZ		 316 j = atp_readb_base(dev, 0x29) & 0xfe;
317 atp_writeb_base(dev, 0x29, j);
3a38e53e 318 } else
6a3cebb6 319 atp_writeb_io(dev, c, 0x10, 0x45);
3a38e53e 320
6a3cebb6 321 target_id = atp_readb_io(dev, c, 0x16);
1da177e4
LT		 322 /*
323 * Remap wide identifiers
324 */
325 if ((target_id & 0x10) != 0) {
326 target_id = (target_id & 0x07) | 0x08;
327 } else {
328 target_id &= 0x07;
329 }
b922a449 330 if (is885(dev))
6a3cebb6 331 atp_writeb_io(dev, c, 0x10, 0x45);
1da177e4
LT		 332 workreq = dev->id[c][target_id].curr_req;
333#ifdef ED_DBGP
017560fc
JG		 334 scmd_printk(KERN_DEBUG, workreq, "CDB");
335 for (l = 0; l < workreq->cmd_len; l++)
1da177e4 336 printk(KERN_DEBUG " %x",workreq->cmnd[l]);
017560fc 337 printk("\n");
1da177e4
LT		 338#endif
339
6a3cebb6
OZ		 340 atp_writeb_io(dev, c, 0x0f, lun);
341 atp_writeb_io(dev, c, 0x11, dev->id[c][target_id].devsp);
1da177e4
LT		 342 adrcnt = dev->id[c][target_id].tran_len;
343 k = dev->id[c][target_id].last_len;
344
6a3cebb6
OZ		 345 atp_writeb_io(dev, c, 0x12, ((unsigned char *) &k)[2]);
346 atp_writeb_io(dev, c, 0x13, ((unsigned char *) &k)[1]);
347 atp_writeb_io(dev, c, 0x14, ((unsigned char *) &k)[0]);
1da177e4 348#ifdef ED_DBGP
6a3cebb6 349 printk("k %x, k[0] 0x%x k[1] 0x%x k[2] 0x%x\n", k, atp_readb_io(dev, c, 0x14), atp_readb_io(dev, c, 0x13), atp_readb_io(dev, c, 0x12));
1da177e4
LT		 350#endif
351 /* Remap wide */
352 j = target_id;
353 if (target_id > 7) {
354 j = (j & 0x07) | 0x40;
355 }
356 /* Add direction */
357 j |= dev->id[c][target_id].dirct;
6a3cebb6
OZ		 358 atp_writeb_io(dev, c, 0x15, j);
359 atp_writeb_io(dev, c, 0x16, 0x80);
1da177e4
LT		 360
361 /* enable 32 bit fifo transfer */
b922a449 362 if (is885(dev)) {
6a3cebb6 363 i = atp_readb_pci(dev, c, 1) & 0xf3;
1da177e4
LT		 364 //j=workreq->cmnd[0];
365 if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a)) {
366 i |= 0x0c;
367 }
6a3cebb6 368 atp_writeb_pci(dev, c, 1, i);
b922a449 369 } else if (is880(dev)) {
6a3cebb6
OZ		 370 if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a))
371 atp_writeb_base(dev, 0x3b, (atp_readb_base(dev, 0x3b) & 0x3f) | 0xc0);
372 else
373 atp_writeb_base(dev, 0x3b, atp_readb_base(dev, 0x3b) & 0x3f);
1da177e4 374 } else {
6a3cebb6 375 if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a))
c751d9f1 376 atp_writeb_base(dev, 0x3a, (atp_readb_base(dev, 0x3a) & 0xf3) | 0x08);
6a3cebb6 377 else
c751d9f1 378 atp_writeb_base(dev, 0x3a, atp_readb_base(dev, 0x3a) & 0xf3);
1da177e4 379 }
1da177e4
LT		 380 j = 0;
381 id = 1;
382 id = id << target_id;
383 /*
384 * Is this a wide device
385 */
386 if ((id & dev->wide_id[c]) != 0) {
387 j |= 0x01;
388 }
6a3cebb6
OZ		 389 atp_writeb_io(dev, c, 0x1b, j);
390 while ((atp_readb_io(dev, c, 0x1b) & 0x01) != j)
391 atp_writeb_io(dev, c, 0x1b, j);
1da177e4 392 if (dev->id[c][target_id].last_len == 0) {
6a3cebb6 393 atp_writeb_io(dev, c, 0x18, 0x08);
1da177e4
LT		 394 dev->in_int[c] = 0;
395#ifdef ED_DBGP
396 printk("dev->id[c][target_id].last_len = 0\n");
397#endif
78614ecd 398 return IRQ_HANDLED;
1da177e4
LT		 399 }
400#ifdef ED_DBGP
401 printk("target_id = %d adrcnt = %d\n",target_id,adrcnt);
402#endif
403 prd = dev->id[c][target_id].prd_pos;
404 while (adrcnt != 0) {
405 id = ((unsigned short int *)prd)[2];
406 if (id == 0) {
407 k = 0x10000;
408 } else {
409 k = id;
410 }
411 if (k > adrcnt) {
412 ((unsigned short int *)prd)[2] = (unsigned short int)
413 (k - adrcnt);
414 ((unsigned long *)prd)[0] += adrcnt;
415 adrcnt = 0;
416 dev->id[c][target_id].prd_pos = prd;
417 } else {
418 adrcnt -= k;
419 dev->id[c][target_id].prdaddr += 0x08;
420 prd += 0x08;
421 if (adrcnt == 0) {
422 dev->id[c][target_id].prd_pos = prd;
423 }
424 }
425 }
6a3cebb6 426 atp_writel_pci(dev, c, 0x04, dev->id[c][target_id].prdaddr);
1da177e4
LT		 427#ifdef ED_DBGP
428 printk("dev->id[%d][%d].prdaddr 0x%8x\n", c, target_id, dev->id[c][target_id].prdaddr);
429#endif
b922a449 430 if (!is885(dev)) {
6a3cebb6
OZ		 431 atp_writeb_pci(dev, c, 2, 0x06);
432 atp_writeb_pci(dev, c, 2, 0x00);
1da177e4 433 }
1da177e4
LT		 434 /*
435 * Check transfer direction
436 */
437 if (dev->id[c][target_id].dirct != 0) {
6a3cebb6
OZ		 438 atp_writeb_io(dev, c, 0x18, 0x08);
439 atp_writeb_pci(dev, c, 0, 0x01);
1da177e4
LT		 440 dev->in_int[c] = 0;
441#ifdef ED_DBGP
442 printk("status 0x80 return dirct != 0\n");
443#endif
78614ecd 444 return IRQ_HANDLED;
1da177e4 445 }
6a3cebb6
OZ		 446 atp_writeb_io(dev, c, 0x18, 0x08);
447 atp_writeb_pci(dev, c, 0, 0x09);
1da177e4
LT		 448 dev->in_int[c] = 0;
449#ifdef ED_DBGP
450 printk("status 0x80 return dirct = 0\n");
451#endif
78614ecd 452 return IRQ_HANDLED;
1da177e4
LT		 453 }
454
455 /*
456 * Current scsi request on this target
457 */
458
459 workreq = dev->id[c][target_id].curr_req;
460
78614ecd 461 if (i == 0x42 || i == 0x16) {
1da177e4
LT		 462 if ((dev->last_cmd[c] & 0xf0) != 0x40) {
463 dev->last_cmd[c] = 0xff;
464 }
78614ecd 465 if (i == 0x16) {
6a3cebb6 466 workreq->result = atp_readb_io(dev, c, 0x0f);
b922a449 467 if (((dev->r1f[c][target_id] & 0x10) != 0) && is885(dev)) {
78614ecd
OZ		 468 printk(KERN_WARNING "AEC67162 CRC ERROR !\n");
469 workreq->result = 0x02;
470 }
471 } else
472 workreq->result = 0x02;
473
b922a449 474 if (is885(dev)) {
6a3cebb6
OZ		 475 j = atp_readb_base(dev, 0x29) | 0x01;
476 atp_writeb_base(dev, 0x29, j);
1da177e4
LT		 477 }
478 /*
479 * Complete the command
480 */
fe7ed98f
BH		 481 scsi_dma_unmap(workreq);
482
1da177e4
LT		 483 spin_lock_irqsave(dev->host->host_lock, flags);
484 (*workreq->scsi_done) (workreq);
485#ifdef ED_DBGP
486 printk("workreq->scsi_done\n");
487#endif
488 /*
489 * Clear it off the queue
490 */
491 dev->id[c][target_id].curr_req = NULL;
492 dev->working[c]--;
493 spin_unlock_irqrestore(dev->host->host_lock, flags);
494 /*
495 * Take it back wide
496 */
497 if (dev->wide_id[c] != 0) {
6a3cebb6
OZ		 498 atp_writeb_io(dev, c, 0x1b, 0x01);
499 while ((atp_readb_io(dev, c, 0x1b) & 0x01) != 0x01)
500 atp_writeb_io(dev, c, 0x1b, 0x01);
1da177e4
LT		 501 }
502 /*
503 * If there is stuff to send and nothing going then send it
504 */
505 spin_lock_irqsave(dev->host->host_lock, flags);
506 if (((dev->last_cmd[c] != 0xff) || (dev->quhd[c] != dev->quend[c])) &&
507 (dev->in_snd[c] == 0)) {
508#ifdef ED_DBGP
509 printk("Call sent_s870(scsi_done)\n");
510#endif
511 send_s870(dev,c);
512 }
513 spin_unlock_irqrestore(dev->host->host_lock, flags);
514 dev->in_int[c] = 0;
78614ecd 515 return IRQ_HANDLED;
1da177e4
LT		 516 }
517 if ((dev->last_cmd[c] & 0xf0) != 0x40) {
518 dev->last_cmd[c] = 0xff;
519 }
520 if (i == 0x4f) {
521 i = 0x89;
522 }
523 i &= 0x0f;
524 if (i == 0x09) {
6a3cebb6
OZ		 525 atp_writel_pci(dev, c, 4, dev->id[c][target_id].prdaddr);
526 atp_writeb_pci(dev, c, 2, 0x06);
527 atp_writeb_pci(dev, c, 2, 0x00);
528 atp_writeb_io(dev, c, 0x10, 0x41);
b922a449 529 if (is885(dev)) {
1da177e4 530 k = dev->id[c][target_id].last_len;
6a3cebb6
OZ		 531 atp_writeb_io(dev, c, 0x12, ((unsigned char *) (&k))[2]);
532 atp_writeb_io(dev, c, 0x13, ((unsigned char *) (&k))[1]);
533 atp_writeb_io(dev, c, 0x14, ((unsigned char *) (&k))[0]);
1da177e4 534 dev->id[c][target_id].dirct = 0x00;
1da177e4
LT		 535 } else {
536 dev->id[c][target_id].dirct = 0x00;
1da177e4 537 }
6a3cebb6
OZ		 538 atp_writeb_io(dev, c, 0x18, 0x08);
539 atp_writeb_pci(dev, c, 0, 0x09);
1da177e4 540 dev->in_int[c] = 0;
78614ecd 541 return IRQ_HANDLED;
1da177e4
LT		 542 }
543 if (i == 0x08) {
6a3cebb6
OZ		 544 atp_writel_pci(dev, c, 4, dev->id[c][target_id].prdaddr);
545 atp_writeb_pci(dev, c, 2, 0x06);
546 atp_writeb_pci(dev, c, 2, 0x00);
547 atp_writeb_io(dev, c, 0x10, 0x41);
b922a449 548 if (is885(dev)) {
1da177e4 549 k = dev->id[c][target_id].last_len;
6a3cebb6
OZ		 550 atp_writeb_io(dev, c, 0x12, ((unsigned char *) (&k))[2]);
551 atp_writeb_io(dev, c, 0x13, ((unsigned char *) (&k))[1]);
552 atp_writeb_io(dev, c, 0x14, ((unsigned char *) (&k))[0]);
1da177e4 553 }
6a3cebb6 554 atp_writeb_io(dev, c, 0x15, atp_readb_io(dev, c, 0x15) | 0x20);
1da177e4 555 dev->id[c][target_id].dirct = 0x20;
6a3cebb6
OZ		 556 atp_writeb_io(dev, c, 0x18, 0x08);
557 atp_writeb_pci(dev, c, 0, 0x01);
1da177e4 558 dev->in_int[c] = 0;
78614ecd 559 return IRQ_HANDLED;
1da177e4 560 }
6a3cebb6
OZ		 561 if (i == 0x0a)
562 atp_writeb_io(dev, c, 0x10, 0x30);
563 else
564 atp_writeb_io(dev, c, 0x10, 0x46);
1da177e4 565 dev->id[c][target_id].dirct = 0x00;
6a3cebb6
OZ		 566 atp_writeb_io(dev, c, 0x12, 0x00);
567 atp_writeb_io(dev, c, 0x13, 0x00);
568 atp_writeb_io(dev, c, 0x14, 0x00);
569 atp_writeb_io(dev, c, 0x18, 0x08);
1da177e4 570 }
78614ecd
OZ		 571 dev->in_int[c] = 0;
572
1da177e4
LT		 573 return IRQ_HANDLED;
574}
575/**
576 * atp870u_queuecommand - Queue SCSI command
577 * @req_p: request block
578 * @done: completion function
579 *
580 * Queue a command to the ATP queue. Called with the host lock held.
581 */
f281233d 582static int atp870u_queuecommand_lck(struct scsi_cmnd *req_p,
1da177e4
LT		 583 void (*done) (struct scsi_cmnd *))
584{
585 unsigned char c;
3b836464 586 unsigned int m;
1da177e4
LT		 587 struct atp_unit *dev;
588 struct Scsi_Host *host;
589
422c0d61 590 c = scmd_channel(req_p);
1da177e4 591 req_p->sense_buffer[0]=0;
fe7ed98f 592 scsi_set_resid(req_p, 0);
422c0d61 593 if (scmd_channel(req_p) > 1) {
1da177e4
LT		 594 req_p->result = 0x00040000;
595 done(req_p);
596#ifdef ED_DBGP
597 printk("atp870u_queuecommand : req_p->device->channel > 1\n");
598#endif
599 return 0;
600 }
601
602 host = req_p->device->host;
603 dev = (struct atp_unit *)&host->hostdata;
604
605
606
607 m = 1;
422c0d61 608 m = m << scmd_id(req_p);
1da177e4
LT		 609
610 /*
611 * Fake a timeout for missing targets
612 */
613
614 if ((m & dev->active_id[c]) == 0) {
615 req_p->result = 0x00040000;
616 done(req_p);
617 return 0;
618 }
619
620 if (done) {
621 req_p->scsi_done = done;
622 } else {
623#ifdef ED_DBGP
624 printk( "atp870u_queuecommand: done can't be NULL\n");
625#endif
626 req_p->result = 0;
627 done(req_p);
628 return 0;
629 }
630
631 /*
632 * Count new command
633 */
634 dev->quend[c]++;
635 if (dev->quend[c] >= qcnt) {
636 dev->quend[c] = 0;
637 }
638
639 /*
640 * Check queue state
641 */
642 if (dev->quhd[c] == dev->quend[c]) {
643 if (dev->quend[c] == 0) {
644 dev->quend[c] = qcnt;
645 }
646#ifdef ED_DBGP
647 printk("atp870u_queuecommand : dev->quhd[c] == dev->quend[c]\n");
648#endif
649 dev->quend[c]--;
650 req_p->result = 0x00020000;
651 done(req_p);
652 return 0;
653 }
654 dev->quereq[c][dev->quend[c]] = req_p;
1da177e4 655#ifdef ED_DBGP
6a3cebb6 656 printk("dev->ioport[c] = %x atp_readb_io(dev, c, 0x1c) = %x dev->in_int[%d] = %d dev->in_snd[%d] = %d\n",dev->ioport[c],atp_readb_io(dev, c, 0x1c),c,dev->in_int[c],c,dev->in_snd[c]);
1da177e4 657#endif
6a3cebb6 658 if ((atp_readb_io(dev, c, 0x1c) == 0) && (dev->in_int[c] == 0) && (dev->in_snd[c] == 0)) {
1da177e4
LT		 659#ifdef ED_DBGP
660 printk("Call sent_s870(atp870u_queuecommand)\n");
661#endif
662 send_s870(dev,c);
663 }
664#ifdef ED_DBGP
665 printk("atp870u_queuecommand : exit\n");
666#endif
667 return 0;
668}
669
f281233d
JG		 670static DEF_SCSI_QCMD(atp870u_queuecommand)
671
1da177e4
LT		 672/**
673 * send_s870 - send a command to the controller
674 * @host: host
675 *
676 * On entry there is work queued to be done. We move some of that work to the
677 * controller itself.
678 *
679 * Caller holds the host lock.
680 */
681static void send_s870(struct atp_unit *dev,unsigned char c)
682{
468b8968 683 struct scsi_cmnd *workreq = NULL;
1da177e4
LT		 684 unsigned int i;//,k;
685 unsigned char j, target_id;
686 unsigned char *prd;
c2bab403 687 unsigned short int w;
1da177e4 688 unsigned long l, bttl = 0;
1da177e4
LT		 689 unsigned long sg_count;
690
691 if (dev->in_snd[c] != 0) {
692#ifdef ED_DBGP
693 printk("cmnd in_snd\n");
694#endif
695 return;
696 }
697#ifdef ED_DBGP
698 printk("Sent_s870 enter\n");
699#endif
700 dev->in_snd[c] = 1;
701 if ((dev->last_cmd[c] != 0xff) && ((dev->last_cmd[c] & 0x40) != 0)) {
702 dev->last_cmd[c] &= 0x0f;
703 workreq = dev->id[c][dev->last_cmd[c]].curr_req;
468b8968
OZ		 704 if (!workreq) {
705 dev->last_cmd[c] = 0xff;
706 if (dev->quhd[c] == dev->quend[c]) {
707 dev->in_snd[c] = 0;
708 return;
709 }
1da177e4
LT		 710 }
711 }
468b8968
OZ		 712 if (!workreq) {
713 if ((dev->last_cmd[c] != 0xff) && (dev->working[c] != 0)) {
714 dev->in_snd[c] = 0;
715 return;
716 }
717 dev->working[c]++;
718 j = dev->quhd[c];
719 dev->quhd[c]++;
720 if (dev->quhd[c] >= qcnt)
721 dev->quhd[c] = 0;
722 workreq = dev->quereq[c][dev->quhd[c]];
723 if (dev->id[c][scmd_id(workreq)].curr_req != NULL) {
724 dev->quhd[c] = j;
725 dev->working[c]--;
726 dev->in_snd[c] = 0;
727 return;
728 }
422c0d61
JG		 729 dev->id[c][scmd_id(workreq)].curr_req = workreq;
730 dev->last_cmd[c] = scmd_id(workreq);
1da177e4 731 }
6a3cebb6 732 if ((atp_readb_io(dev, c, 0x1f) & 0xb0) != 0 || atp_readb_io(dev, c, 0x1c) != 0) {
1da177e4 733#ifdef ED_DBGP
468b8968 734 printk("Abort to Send\n");
1da177e4 735#endif
468b8968
OZ		 736 dev->last_cmd[c] |= 0x40;
737 dev->in_snd[c] = 0;
738 return;
739 }
1da177e4
LT		 740#ifdef ED_DBGP
741 printk("OK to Send\n");
422c0d61 742 scmd_printk(KERN_DEBUG, workreq, "CDB");
1da177e4
LT		 743 for(i=0;i<workreq->cmd_len;i++) {
744 printk(" %x",workreq->cmnd[i]);
745 }
422c0d61 746 printk("\n");
1da177e4 747#endif
fe7ed98f
BH		 748 l = scsi_bufflen(workreq);
749
b922a449 750 if (is885(dev)) {
6a3cebb6
OZ		 751 j = atp_readb_base(dev, 0x29) & 0xfe;
752 atp_writeb_base(dev, 0x29, j);
422c0d61 753 dev->r1f[c][scmd_id(workreq)] = 0;
1da177e4
LT		 754 }
755
756 if (workreq->cmnd[0] == READ_CAPACITY) {
fe7ed98f
BH		 757 if (l > 8)
758 l = 8;
1da177e4
LT		 759 }
760 if (workreq->cmnd[0] == 0x00) {
fe7ed98f 761 l = 0;
1da177e4
LT		 762 }
763
1da177e4 764 j = 0;
422c0d61 765 target_id = scmd_id(workreq);
1da177e4
LT		 766
767 /*
768 * Wide ?
769 */
770 w = 1;
771 w = w << target_id;
772 if ((w & dev->wide_id[c]) != 0) {
773 j |= 0x01;
774 }
6a3cebb6
OZ		 775 atp_writeb_io(dev, c, 0x1b, j);
776 while ((atp_readb_io(dev, c, 0x1b) & 0x01) != j) {
777 atp_writeb_pci(dev, c, 0x1b, j);
1da177e4
LT		 778#ifdef ED_DBGP
779 printk("send_s870 while loop 1\n");
780#endif
781 }
782 /*
783 * Write the command
784 */
785
6a3cebb6
OZ		 786 atp_writeb_io(dev, c, 0x00, workreq->cmd_len);
787 atp_writeb_io(dev, c, 0x01, 0x2c);
b922a449 788 if (is885(dev))
6a3cebb6
OZ		 789 atp_writeb_io(dev, c, 0x02, 0x7f);
790 else
791 atp_writeb_io(dev, c, 0x02, 0xcf);
792 for (i = 0; i < workreq->cmd_len; i++)
793 atp_writeb_io(dev, c, 0x03 + i, workreq->cmnd[i]);
794 atp_writeb_io(dev, c, 0x0f, workreq->device->lun);
1da177e4
LT		 795 /*
796 * Write the target
797 */
6a3cebb6 798 atp_writeb_io(dev, c, 0x11, dev->id[c][target_id].devsp);
1da177e4
LT		 799#ifdef ED_DBGP
800 printk("dev->id[%d][%d].devsp = %2x\n",c,target_id,dev->id[c][target_id].devsp);
801#endif
fe7ed98f
BH		 802
803 sg_count = scsi_dma_map(workreq);
1da177e4
LT		 804 /*
805 * Write transfer size
806 */
6a3cebb6
OZ		 807 atp_writeb_io(dev, c, 0x12, ((unsigned char *) (&l))[2]);
808 atp_writeb_io(dev, c, 0x13, ((unsigned char *) (&l))[1]);
809 atp_writeb_io(dev, c, 0x14, ((unsigned char *) (&l))[0]);
1da177e4
LT		 810 j = target_id;
811 dev->id[c][j].last_len = l;
812 dev->id[c][j].tran_len = 0;
813#ifdef ED_DBGP
814 printk("dev->id[%2d][%2d].last_len = %d\n",c,j,dev->id[c][j].last_len);
815#endif
816 /*
817 * Flip the wide bits
818 */
819 if ((j & 0x08) != 0) {
820 j = (j & 0x07) | 0x40;
821 }
822 /*
823 * Check transfer direction
824 */
6a3cebb6
OZ		 825 if (workreq->sc_data_direction == DMA_TO_DEVICE)
826 atp_writeb_io(dev, c, 0x15, j | 0x20);
827 else
828 atp_writeb_io(dev, c, 0x15, j);
829 atp_writeb_io(dev, c, 0x16, atp_readb_io(dev, c, 0x16) | 0x80);
830 atp_writeb_io(dev, c, 0x16, 0x80);
1da177e4
LT		 831 dev->id[c][target_id].dirct = 0;
832 if (l == 0) {
6a3cebb6 833 if (atp_readb_io(dev, c, 0x1c) == 0) {
1da177e4
LT		 834#ifdef ED_DBGP
835 printk("change SCSI_CMD_REG 0x08\n");
836#endif
6a3cebb6
OZ		 837 atp_writeb_io(dev, c, 0x18, 0x08);
838 } else
1da177e4 839 dev->last_cmd[c] |= 0x40;
1da177e4
LT		 840 dev->in_snd[c] = 0;
841 return;
842 }
1da177e4
LT		 843 prd = dev->id[c][target_id].prd_table;
844 dev->id[c][target_id].prd_pos = prd;
845
846 /*
847 * Now write the request list. Either as scatter/gather or as
848 * a linear chain.
849 */
850
fe7ed98f
BH		 851 if (l) {
852 struct scatterlist *sgpnt;
1da177e4 853 i = 0;
fe7ed98f
BH		 854 scsi_for_each_sg(workreq, sgpnt, sg_count, j) {
855 bttl = sg_dma_address(sgpnt);
856 l=sg_dma_len(sgpnt);
1da177e4 857#ifdef ED_DBGP
fe7ed98f 858 printk("1. bttl %x, l %x\n",bttl, l);
1da177e4 859#endif
fe7ed98f 860 while (l > 0x10000) {
1da177e4
LT		 861 (((u16 *) (prd))[i + 3]) = 0x0000;
862 (((u16 *) (prd))[i + 2]) = 0x0000;
863 (((u32 *) (prd))[i >> 1]) = cpu_to_le32(bttl);
864 l -= 0x10000;
865 bttl += 0x10000;
866 i += 0x04;
867 }
868 (((u32 *) (prd))[i >> 1]) = cpu_to_le32(bttl);
869 (((u16 *) (prd))[i + 2]) = cpu_to_le16(l);
870 (((u16 *) (prd))[i + 3]) = 0;
871 i += 0x04;
872 }
873 (((u16 *) (prd))[i - 1]) = cpu_to_le16(0x8000);
874#ifdef ED_DBGP
875 printk("prd %4x %4x %4x %4x\n",(((unsigned short int *)prd)[0]),(((unsigned short int *)prd)[1]),(((unsigned short int *)prd)[2]),(((unsigned short int *)prd)[3]));
876 printk("2. bttl %x, l %x\n",bttl, l);
877#endif
1da177e4 878 }
1da177e4 879#ifdef ED_DBGP
c2bab403 880 printk("send_s870: prdaddr_2 0x%8x target_id %d\n", dev->id[c][target_id].prdaddr,target_id);
1da177e4 881#endif
b5683557 882 dev->id[c][target_id].prdaddr = dev->id[c][target_id].prd_bus;
6a3cebb6
OZ		 883 atp_writel_pci(dev, c, 4, dev->id[c][target_id].prdaddr);
884 atp_writeb_pci(dev, c, 2, 0x06);
885 atp_writeb_pci(dev, c, 2, 0x00);
b922a449 886 if (is885(dev)) {
6a3cebb6 887 j = atp_readb_pci(dev, c, 1) & 0xf3;
1da177e4
LT		 888 if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) ||
889 (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a)) {
890 j |= 0x0c;
891 }
6a3cebb6 892 atp_writeb_pci(dev, c, 1, j);
b922a449 893 } else if (is880(dev)) {
6a3cebb6
OZ		 894 if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a))
895 atp_writeb_base(dev, 0x3b, (atp_readb_base(dev, 0x3b) & 0x3f) | 0xc0);
896 else
897 atp_writeb_base(dev, 0x3b, atp_readb_base(dev, 0x3b) & 0x3f);
1da177e4 898 } else {
6a3cebb6 899 if ((workreq->cmnd[0] == 0x08) || (workreq->cmnd[0] == 0x28) || (workreq->cmnd[0] == 0x0a) || (workreq->cmnd[0] == 0x2a))
c751d9f1 900 atp_writeb_base(dev, 0x3a, (atp_readb_base(dev, 0x3a) & 0xf3) | 0x08);
6a3cebb6 901 else
c751d9f1 902 atp_writeb_base(dev, 0x3a, atp_readb_base(dev, 0x3a) & 0xf3);
1da177e4 903 }
1da177e4
LT		 904
905 if(workreq->sc_data_direction == DMA_TO_DEVICE) {
906 dev->id[c][target_id].dirct = 0x20;
6a3cebb6
OZ		 907 if (atp_readb_io(dev, c, 0x1c) == 0) {
908 atp_writeb_io(dev, c, 0x18, 0x08);
909 atp_writeb_pci(dev, c, 0, 0x01);
1da177e4
LT		 910#ifdef ED_DBGP
911 printk( "start DMA(to target)\n");
912#endif
913 } else {
914 dev->last_cmd[c] |= 0x40;
915 }
916 dev->in_snd[c] = 0;
917 return;
918 }
6a3cebb6
OZ		 919 if (atp_readb_io(dev, c, 0x1c) == 0) {
920 atp_writeb_io(dev, c, 0x18, 0x08);
921 atp_writeb_pci(dev, c, 0, 0x09);
1da177e4
LT		 922#ifdef ED_DBGP
923 printk( "start DMA(to host)\n");
924#endif
925 } else {
926 dev->last_cmd[c] |= 0x40;
927 }
928 dev->in_snd[c] = 0;
929 return;
930
931}
932
933static unsigned char fun_scam(struct atp_unit *dev, unsigned short int *val)
934{
1da177e4
LT		 935 unsigned short int i, k;
936 unsigned char j;
937
6a3cebb6 938 atp_writew_io(dev, 0, 0x1c, *val);
1da177e4 939 for (i = 0; i < 10; i++) { /* stable >= bus settle delay(400 ns) */
6a3cebb6 940 k = atp_readw_io(dev, 0, 0x1c);
1da177e4 941 j = (unsigned char) (k >> 8);
832e9ac6
OZ		 942 if ((k & 0x8000) != 0) /* DB7 all release? */
943 i = 0;
1da177e4
LT		 944 }
945 *val |= 0x4000; /* assert DB6 */
6a3cebb6 946 atp_writew_io(dev, 0, 0x1c, *val);
1da177e4 947 *val &= 0xdfff; /* assert DB5 */
6a3cebb6 948 atp_writew_io(dev, 0, 0x1c, *val);
1da177e4 949 for (i = 0; i < 10; i++) { /* stable >= bus settle delay(400 ns) */
6a3cebb6 950 if ((atp_readw_io(dev, 0, 0x1c) & 0x2000) != 0) /* DB5 all release? */
832e9ac6 951 i = 0;
1da177e4
LT		 952 }
953 *val |= 0x8000; /* no DB4-0, assert DB7 */
954 *val &= 0xe0ff;
6a3cebb6 955 atp_writew_io(dev, 0, 0x1c, *val);
1da177e4 956 *val &= 0xbfff; /* release DB6 */
6a3cebb6 957 atp_writew_io(dev, 0, 0x1c, *val);
1da177e4 958 for (i = 0; i < 10; i++) { /* stable >= bus settle delay(400 ns) */
6a3cebb6 959 if ((atp_readw_io(dev, 0, 0x1c) & 0x4000) != 0) /* DB6 all release? */
832e9ac6 960 i = 0;
1da177e4
LT		 961 }
962
963 return j;
964}
965
8177c507 966static void tscam(struct Scsi_Host *host, bool wide_chip, u8 scam_on)
1da177e4
LT		 967{
968
1da177e4
LT		 969 unsigned char i, j, k;
970 unsigned long n;
971 unsigned short int m, assignid_map, val;
972 unsigned char mbuf[33], quintet[2];
973 struct atp_unit *dev = (struct atp_unit *)&host->hostdata;
974 static unsigned char g2q_tab[8] = {
975 0x38, 0x31, 0x32, 0x2b, 0x34, 0x2d, 0x2e, 0x27
976 };
977
978/* I can't believe we need this before we've even done anything. Remove it
979 * and see if anyone bitches.
980 for (i = 0; i < 0x10; i++) {
981 udelay(0xffff);
982 }
983 */
984
6a3cebb6
OZ		 985 atp_writeb_io(dev, 0, 1, 0x08);
986 atp_writeb_io(dev, 0, 2, 0x7f);
987 atp_writeb_io(dev, 0, 0x11, 0x20);
1da177e4 988
8177c507 989 if ((scam_on & 0x40) == 0) {
1da177e4
LT		 990 return;
991 }
992 m = 1;
993 m <<= dev->host_id[0];
994 j = 16;
dd5a5f79 995 if (!wide_chip) {
1da177e4
LT		 996 m |= 0xff00;
997 j = 8;
998 }
999 assignid_map = m;
6a3cebb6
OZ		 1000 atp_writeb_io(dev, 0, 0x02, 0x02); /* 2*2=4ms,3EH 2/32*3E=3.9ms */
1001 atp_writeb_io(dev, 0, 0x03, 0);
1002 atp_writeb_io(dev, 0, 0x04, 0);
1003 atp_writeb_io(dev, 0, 0x05, 0);
1004 atp_writeb_io(dev, 0, 0x06, 0);
1005 atp_writeb_io(dev, 0, 0x07, 0);
1006 atp_writeb_io(dev, 0, 0x08, 0);
1da177e4
LT		 1007
1008 for (i = 0; i < j; i++) {
1009 m = 1;
1010 m = m << i;
1011 if ((m & assignid_map) != 0) {
1012 continue;
1013 }
6a3cebb6
OZ		 1014 atp_writeb_io(dev, 0, 0x0f, 0);
1015 atp_writeb_io(dev, 0, 0x12, 0);
1016 atp_writeb_io(dev, 0, 0x13, 0);
1017 atp_writeb_io(dev, 0, 0x14, 0);
1da177e4
LT		 1018 if (i > 7) {
1019 k = (i & 0x07) | 0x40;
1020 } else {
1021 k = i;
1022 }
6a3cebb6 1023 atp_writeb_io(dev, 0, 0x15, k);
dd5a5f79 1024 if (wide_chip)
6a3cebb6
OZ		 1025 atp_writeb_io(dev, 0, 0x1b, 0x01);
1026 else
1027 atp_writeb_io(dev, 0, 0x1b, 0x00);
58c4d046 1028 do {
6a3cebb6 1029 atp_writeb_io(dev, 0, 0x18, 0x09);
1da177e4 1030
6a3cebb6 1031 while ((atp_readb_io(dev, 0, 0x1f) & 0x80) == 0x00)
58c4d046 1032 cpu_relax();
6a3cebb6 1033 k = atp_readb_io(dev, 0, 0x17);
58c4d046
OZ		 1034 if ((k == 0x85) || (k == 0x42))
1035 break;
1036 if (k != 0x16)
6a3cebb6 1037 atp_writeb_io(dev, 0, 0x10, 0x41);
58c4d046
OZ		 1038 } while (k != 0x16);
1039 if ((k == 0x85) || (k == 0x42))
1040 continue;
1da177e4
LT		 1041 assignid_map |= m;
1042
1043 }
6a3cebb6
OZ		 1044 atp_writeb_io(dev, 0, 0x02, 0x7f);
1045 atp_writeb_io(dev, 0, 0x1b, 0x02);
1da177e4 1046
2bbbac45 1047 udelay(2);
1da177e4
LT		 1048
1049 val = 0x0080; /* bsy */
6a3cebb6 1050 atp_writew_io(dev, 0, 0x1c, val);
1da177e4 1051 val |= 0x0040; /* sel */
6a3cebb6 1052 atp_writew_io(dev, 0, 0x1c, val);
1da177e4 1053 val |= 0x0004; /* msg */
6a3cebb6 1054 atp_writew_io(dev, 0, 0x1c, val);
2bbbac45 1055 udelay(2); /* 2 deskew delay(45ns*2=90ns) */
1da177e4 1056 val &= 0x007f; /* no bsy */
6a3cebb6 1057 atp_writew_io(dev, 0, 0x1c, val);
dcaa0c12 1058 msleep(128);
1da177e4 1059 val &= 0x00fb; /* after 1ms no msg */
6a3cebb6
OZ		 1060 atp_writew_io(dev, 0, 0x1c, val);
1061 while ((atp_readb_io(dev, 0, 0x1c) & 0x04) != 0)
58c4d046 1062 ;
2bbbac45 1063 udelay(2);
1da177e4 1064 udelay(100);
c7fcc089 1065 for (n = 0; n < 0x30000; n++)
6a3cebb6 1066 if ((atp_readb_io(dev, 0, 0x1c) & 0x80) != 0) /* bsy ? */
c7fcc089
OZ		 1067 break;
1068 if (n < 0x30000)
1069 for (n = 0; n < 0x30000; n++)
6a3cebb6 1070 if ((atp_readb_io(dev, 0, 0x1c) & 0x81) == 0x0081) {
2bbbac45 1071 udelay(2);
c7fcc089 1072 val |= 0x8003; /* io,cd,db7 */
6a3cebb6 1073 atp_writew_io(dev, 0, 0x1c, val);
2bbbac45 1074 udelay(2);
c7fcc089 1075 val &= 0x00bf; /* no sel */
6a3cebb6 1076 atp_writew_io(dev, 0, 0x1c, val);
2bbbac45 1077 udelay(2);
c7fcc089
OZ		 1078 break;
1079 }
1080 while (1) {
0f6d93aa
MM		 1081 /*
1082 * The funny division into multiple delays is to accomodate
1083 * arches like ARM where udelay() multiplies its argument by
1084 * a large number to initialize a loop counter. To avoid
1085 * overflow, the maximum supported udelay is 2000 microseconds.
1086 *
1087 * XXX it would be more polite to find a way to use msleep()
1088 */
1089 mdelay(2);
1090 udelay(48);
6a3cebb6
OZ		 1091 if ((atp_readb_io(dev, 0, 0x1c) & 0x80) == 0x00) { /* bsy ? */
1092 atp_writew_io(dev, 0, 0x1c, 0);
1093 atp_writeb_io(dev, 0, 0x1b, 0);
1094 atp_writeb_io(dev, 0, 0x15, 0);
1095 atp_writeb_io(dev, 0, 0x18, 0x09);
1096 while ((atp_readb_io(dev, 0, 0x1f) & 0x80) == 0)
1da177e4 1097 cpu_relax();
6a3cebb6 1098 atp_readb_io(dev, 0, 0x17);
1da177e4
LT		 1099 return;
1100 }
1101 val &= 0x00ff; /* synchronization */
1102 val |= 0x3f00;
1103 fun_scam(dev, &val);
2bbbac45 1104 udelay(2);
1da177e4
LT		 1105 val &= 0x00ff; /* isolation */
1106 val |= 0x2000;
1107 fun_scam(dev, &val);
2bbbac45 1108 udelay(2);
1da177e4
LT		 1109 i = 8;
1110 j = 0;
c7fcc089
OZ		 1111
1112 while (1) {
6a3cebb6 1113 if ((atp_readw_io(dev, 0, 0x1c) & 0x2000) == 0)
c7fcc089 1114 continue;
2bbbac45 1115 udelay(2);
c7fcc089
OZ		 1116 val &= 0x00ff; /* get ID_STRING */
1117 val |= 0x2000;
1118 k = fun_scam(dev, &val);
1119 if ((k & 0x03) == 0)
1120 break;
1121 mbuf[j] <<= 0x01;
1122 mbuf[j] &= 0xfe;
1123 if ((k & 0x02) != 0)
1124 mbuf[j] |= 0x01;
1125 i--;
1126 if (i > 0)
1127 continue;
1128 j++;
1129 i = 8;
1da177e4 1130 }
1da177e4 1131
c7fcc089 1132 /* isolation complete.. */
1da177e4
LT		 1133/* mbuf[32]=0;
1134 printk(" \n%x %x %x %s\n ",assignid_map,mbuf[0],mbuf[1],&mbuf[2]); */
1135 i = 15;
1136 j = mbuf[0];
25985edc 1137 if ((j & 0x20) != 0) { /* bit5=1:ID up to 7 */
1da177e4
LT		 1138 i = 7;
1139 }
c7fcc089
OZ		 1140 if ((j & 0x06) != 0) { /* IDvalid? */
1141 k = mbuf[1];
1142 while (1) {
1143 m = 1;
1144 m <<= k;
1145 if ((m & assignid_map) == 0)
1146 break;
1147 if (k > 0)
1148 k--;
1149 else
1150 break;
1151 }
1da177e4 1152 }
c7fcc089
OZ		 1153 if ((m & assignid_map) != 0) { /* srch from max acceptable ID# */
1154 k = i; /* max acceptable ID# */
1155 while (1) {
1156 m = 1;
1157 m <<= k;
1158 if ((m & assignid_map) == 0)
1159 break;
1160 if (k > 0)
1161 k--;
1162 else
1163 break;
1164 }
1da177e4 1165 }
c7fcc089 1166 /* k=binID#, */
1da177e4
LT		 1167 assignid_map |= m;
1168 if (k < 8) {
1169 quintet[0] = 0x38; /* 1st dft ID<8 */
1170 } else {
1171 quintet[0] = 0x31; /* 1st ID>=8 */
1172 }
1173 k &= 0x07;
1174 quintet[1] = g2q_tab[k];
1175
1176 val &= 0x00ff; /* AssignID 1stQuintet,AH=001xxxxx */
1177 m = quintet[0] << 8;
1178 val |= m;
1179 fun_scam(dev, &val);
1180 val &= 0x00ff; /* AssignID 2ndQuintet,AH=001xxxxx */
1181 m = quintet[1] << 8;
1182 val |= m;
1183 fun_scam(dev, &val);
1184
c7fcc089 1185 }
1da177e4
LT		 1186}
1187
1da177e4
LT		 1188static void atp870u_free_tables(struct Scsi_Host *host)
1189{
1190 struct atp_unit *atp_dev = (struct atp_unit *)&host->hostdata;
1191 int j, k;
1192 for (j=0; j < 2; j++) {
1193 for (k = 0; k < 16; k++) {
1194 if (!atp_dev->id[j][k].prd_table)
1195 continue;
48ecddb4 1196 dma_free_coherent(&atp_dev->pdev->dev, 1024, atp_dev->id[j][k].prd_table, atp_dev->id[j][k].prd_bus);
1da177e4
LT		 1197 atp_dev->id[j][k].prd_table = NULL;
1198 }
1199 }
1200}
1201
1202static int atp870u_init_tables(struct Scsi_Host *host)
1203{
1204 struct atp_unit *atp_dev = (struct atp_unit *)&host->hostdata;
1205 int c,k;
1206 for(c=0;c < 2;c++) {
1207 for(k=0;k<16;k++) {
48ecddb4 1208 atp_dev->id[c][k].prd_table = dma_alloc_coherent(&atp_dev->pdev->dev, 1024, &(atp_dev->id[c][k].prd_bus), GFP_KERNEL);
1da177e4
LT		 1209 if (!atp_dev->id[c][k].prd_table) {
1210 printk("atp870u_init_tables fail\n");
1211 atp870u_free_tables(host);
1212 return -ENOMEM;
1213 }
b5683557 1214 atp_dev->id[c][k].prdaddr = atp_dev->id[c][k].prd_bus;
1da177e4
LT		 1215 atp_dev->id[c][k].devsp=0x20;
1216 atp_dev->id[c][k].devtype = 0x7f;
1217 atp_dev->id[c][k].curr_req = NULL;
1218 }
1219
1220 atp_dev->active_id[c] = 0;
1221 atp_dev->wide_id[c] = 0;
1222 atp_dev->host_id[c] = 0x07;
1223 atp_dev->quhd[c] = 0;
1224 atp_dev->quend[c] = 0;
1225 atp_dev->last_cmd[c] = 0xff;
1226 atp_dev->in_snd[c] = 0;
1227 atp_dev->in_int[c] = 0;
1228
1229 for (k = 0; k < qcnt; k++) {
1230 atp_dev->quereq[c][k] = NULL;
1231 }
1232 for (k = 0; k < 16; k++) {
1233 atp_dev->id[c][k].curr_req = NULL;
1234 atp_dev->sp[c][k] = 0x04;
1235 }
1236 }
1237 return 0;
1238}
1239
6a1961bc
OZ		 1240static void atp_set_host_id(struct atp_unit *atp, u8 c, u8 host_id)
1241{
1242 atp_writeb_io(atp, c, 0, host_id | 0x08);
1243 atp_writeb_io(atp, c, 0x18, 0);
1244 while ((atp_readb_io(atp, c, 0x1f) & 0x80) == 0)
1245 mdelay(1);
1246 atp_readb_io(atp, c, 0x17);
1247 atp_writeb_io(atp, c, 1, 8);
1248 atp_writeb_io(atp, c, 2, 0x7f);
1249 atp_writeb_io(atp, c, 0x11, 0x20);
1250}
1251
4190230e
OZ		 1252static void atp870_init(struct Scsi_Host *shpnt)
1253{
1254 struct atp_unit *atpdev = shost_priv(shpnt);
1255 struct pci_dev *pdev = atpdev->pdev;
1256 unsigned char k, host_id;
1257 u8 scam_on;
1258 bool wide_chip =
1259 (pdev->device == PCI_DEVICE_ID_ARTOP_AEC7610 &&
1260 pdev->revision == 4) ||
1261 (pdev->device == PCI_DEVICE_ID_ARTOP_AEC7612UW) ||
1262 (pdev->device == PCI_DEVICE_ID_ARTOP_AEC7612SUW);
1263
1264 pci_read_config_byte(pdev, 0x49, &host_id);
1265
1266 dev_info(&pdev->dev, "ACARD AEC-671X PCI Ultra/W SCSI-2/3 Host Adapter: IO:%lx, IRQ:%d.\n",
1267 shpnt->io_port, shpnt->irq);
1268
1269 atpdev->ioport[0] = shpnt->io_port;
1270 atpdev->pciport[0] = shpnt->io_port + 0x20;
1271 host_id &= 0x07;
1272 atpdev->host_id[0] = host_id;
1273 scam_on = atp_readb_pci(atpdev, 0, 2);
1274 atpdev->global_map[0] = atp_readb_base(atpdev, 0x2d);
1275 atpdev->ultra_map[0] = atp_readw_base(atpdev, 0x2e);
1276
1277 if (atpdev->ultra_map[0] == 0) {
1278 scam_on = 0x00;
1279 atpdev->global_map[0] = 0x20;
1280 atpdev->ultra_map[0] = 0xffff;
1281 }
1282
1283 if (pdev->revision > 0x07) /* check if atp876 chip */
1284 atp_writeb_base(atpdev, 0x3e, 0x00); /* enable terminator */
1285
1286 k = (atp_readb_base(atpdev, 0x3a) & 0xf3) | 0x10;
1287 atp_writeb_base(atpdev, 0x3a, k);
1288 atp_writeb_base(atpdev, 0x3a, k & 0xdf);
dcaa0c12 1289 msleep(32);
4190230e 1290 atp_writeb_base(atpdev, 0x3a, k);
dcaa0c12 1291 msleep(32);
4190230e
OZ		 1292 atp_set_host_id(atpdev, 0, host_id);
1293
1294 tscam(shpnt, wide_chip, scam_on);
1295 atp_writeb_base(atpdev, 0x3a, atp_readb_base(atpdev, 0x3a) | 0x10);
1296 atp_is(atpdev, 0, wide_chip, 0);
1297 atp_writeb_base(atpdev, 0x3a, atp_readb_base(atpdev, 0x3a) & 0xef);
1298 atp_writeb_base(atpdev, 0x3b, atp_readb_base(atpdev, 0x3b) | 0x20);
1299 shpnt->max_id = wide_chip ? 16 : 8;
1300 shpnt->this_id = host_id;
1301}
1302
c7e6a029
OZ		 1303static void atp880_init(struct Scsi_Host *shpnt)
1304{
1305 struct atp_unit *atpdev = shost_priv(shpnt);
1306 struct pci_dev *pdev = atpdev->pdev;
1307 unsigned char k, m, host_id;
1308 unsigned int n;
1309
1310 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);
1311
1312 atpdev->ioport[0] = shpnt->io_port + 0x40;
1313 atpdev->pciport[0] = shpnt->io_port + 0x28;
1314
1315 host_id = atp_readb_base(atpdev, 0x39) >> 4;
1316
1317 dev_info(&pdev->dev, "ACARD AEC-67160 PCI Ultra3 LVD Host Adapter: IO:%lx, IRQ:%d.\n",
1318 shpnt->io_port, shpnt->irq);
1319 atpdev->host_id[0] = host_id;
1320
1321 atpdev->global_map[0] = atp_readb_base(atpdev, 0x35);
1322 atpdev->ultra_map[0] = atp_readw_base(atpdev, 0x3c);
1323
1324 n = 0x3f09;
1325 while (n < 0x4000) {
1326 m = 0;
1327 atp_writew_base(atpdev, 0x34, n);
1328 n += 0x0002;
1329 if (atp_readb_base(atpdev, 0x30) == 0xff)
1330 break;
1331
1332 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x30);
1333 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x31);
1334 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x32);
1335 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x33);
1336 atp_writew_base(atpdev, 0x34, n);
1337 n += 0x0002;
1338 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x30);
1339 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x31);
1340 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x32);
1341 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x33);
1342 atp_writew_base(atpdev, 0x34, n);
1343 n += 0x0002;
1344 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x30);
1345 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x31);
1346 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x32);
1347 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x33);
1348 atp_writew_base(atpdev, 0x34, n);
1349 n += 0x0002;
1350 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x30);
1351 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x31);
1352 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x32);
1353 atpdev->sp[0][m++] = atp_readb_base(atpdev, 0x33);
1354 n += 0x0018;
1355 }
1356 atp_writew_base(atpdev, 0x34, 0);
1357 atpdev->ultra_map[0] = 0;
1358 atpdev->async[0] = 0;
1359 for (k = 0; k < 16; k++) {
1360 n = 1 << k;
1361 if (atpdev->sp[0][k] > 1)
1362 atpdev->ultra_map[0] |= n;
1363 else
1364 if (atpdev->sp[0][k] == 0)
1365 atpdev->async[0] |= n;
1366 }
1367 atpdev->async[0] = ~(atpdev->async[0]);
1368 atp_writeb_base(atpdev, 0x35, atpdev->global_map[0]);
1369
1370 k = atp_readb_base(atpdev, 0x38) & 0x80;
1371 atp_writeb_base(atpdev, 0x38, k);
1372 atp_writeb_base(atpdev, 0x3b, 0x20);
dcaa0c12 1373 msleep(32);
c7e6a029 1374 atp_writeb_base(atpdev, 0x3b, 0);
dcaa0c12 1375 msleep(32);
c7e6a029
OZ		 1376 atp_readb_io(atpdev, 0, 0x1b);
1377 atp_readb_io(atpdev, 0, 0x17);
1378
1379 atp_set_host_id(atpdev, 0, host_id);
1380
1381 tscam(shpnt, true, atp_readb_base(atpdev, 0x22));
1382 atp_is(atpdev, 0, true, atp_readb_base(atpdev, 0x3f) & 0x40);
1383 atp_writeb_base(atpdev, 0x38, 0xb0);
1384 shpnt->max_id = 16;
1385 shpnt->this_id = host_id;
1386}
1387
ecc6ff95
OZ		 1388static void atp885_init(struct Scsi_Host *shpnt)
1389{
1390 struct atp_unit *atpdev = shost_priv(shpnt);
1391 struct pci_dev *pdev = atpdev->pdev;
1392 unsigned char k, m, c;
1393 unsigned int n;
1394 unsigned char setupdata[2][16];
1395
1396 dev_info(&pdev->dev, "ACARD AEC-67162 PCI Ultra3 LVD Host Adapter: IO:%lx, IRQ:%d.\n",
1397 shpnt->io_port, shpnt->irq);
1398
1399 atpdev->ioport[0] = shpnt->io_port + 0x80;
1400 atpdev->ioport[1] = shpnt->io_port + 0xc0;
1401 atpdev->pciport[0] = shpnt->io_port + 0x40;
1402 atpdev->pciport[1] = shpnt->io_port + 0x50;
1403
1404 c = atp_readb_base(atpdev, 0x29);
1405 atp_writeb_base(atpdev, 0x29, c | 0x04);
1406
1407 n = 0x1f80;
1408 while (n < 0x2000) {
1409 atp_writew_base(atpdev, 0x3c, n);
1410 if (atp_readl_base(atpdev, 0x38) == 0xffffffff)
1411 break;
1412 for (m = 0; m < 2; m++) {
1413 atpdev->global_map[m] = 0;
1414 for (k = 0; k < 4; k++) {
1415 atp_writew_base(atpdev, 0x3c, n++);
29e79e0f 1416 ((u32 *)&setupdata[m][0])[k] = atp_readl_base(atpdev, 0x38);
ecc6ff95
OZ		 1417 }
1418 for (k = 0; k < 4; k++) {
1419 atp_writew_base(atpdev, 0x3c, n++);
29e79e0f 1420 ((u32 *)&atpdev->sp[m][0])[k] = atp_readl_base(atpdev, 0x38);
ecc6ff95
OZ		 1421 }
1422 n += 8;
1423 }
1424 }
1425 c = atp_readb_base(atpdev, 0x29);
1426 atp_writeb_base(atpdev, 0x29, c & 0xfb);
1427 for (c = 0; c < 2; c++) {
1428 atpdev->ultra_map[c] = 0;
1429 atpdev->async[c] = 0;
1430 for (k = 0; k < 16; k++) {
1431 n = 1 << k;
1432 if (atpdev->sp[c][k] > 1)
1433 atpdev->ultra_map[c] |= n;
1434 else
1435 if (atpdev->sp[c][k] == 0)
1436 atpdev->async[c] |= n;
1437 }
1438 atpdev->async[c] = ~(atpdev->async[c]);
1439
1440 if (atpdev->global_map[c] == 0) {
1441 k = setupdata[c][1];
1442 if ((k & 0x40) != 0)
1443 atpdev->global_map[c] |= 0x20;
1444 k &= 0x07;
1445 atpdev->global_map[c] |= k;
1446 if ((setupdata[c][2] & 0x04) != 0)
1447 atpdev->global_map[c] |= 0x08;
1448 atpdev->host_id[c] = setupdata[c][0] & 0x07;
1449 }
1450 }
1451
1452 k = atp_readb_base(atpdev, 0x28) & 0x8f;
1453 k |= 0x10;
1454 atp_writeb_base(atpdev, 0x28, k);
1455 atp_writeb_pci(atpdev, 0, 1, 0x80);
1456 atp_writeb_pci(atpdev, 1, 1, 0x80);
dcaa0c12 1457 msleep(100);
ecc6ff95
OZ		 1458 atp_writeb_pci(atpdev, 0, 1, 0);
1459 atp_writeb_pci(atpdev, 1, 1, 0);
dcaa0c12 1460 msleep(1000);
ecc6ff95
OZ		 1461 atp_readb_io(atpdev, 0, 0x1b);
1462 atp_readb_io(atpdev, 0, 0x17);
1463 atp_readb_io(atpdev, 1, 0x1b);
1464 atp_readb_io(atpdev, 1, 0x17);
1465
1466 k = atpdev->host_id[0];
1467 if (k > 7)
1468 k = (k & 0x07) | 0x40;
1469 atp_set_host_id(atpdev, 0, k);
1470
1471 k = atpdev->host_id[1];
1472 if (k > 7)
1473 k = (k & 0x07) | 0x40;
1474 atp_set_host_id(atpdev, 1, k);
1475
dcaa0c12 1476 msleep(600); /* this delay used to be called tscam_885() */
ecc6ff95
OZ		 1477 dev_info(&pdev->dev, "Scanning Channel A SCSI Device ...\n");
1478 atp_is(atpdev, 0, true, atp_readb_io(atpdev, 0, 0x1b) >> 7);
1479 atp_writeb_io(atpdev, 0, 0x16, 0x80);
1480 dev_info(&pdev->dev, "Scanning Channel B SCSI Device ...\n");
1481 atp_is(atpdev, 1, true, atp_readb_io(atpdev, 1, 0x1b) >> 7);
1482 atp_writeb_io(atpdev, 1, 0x16, 0x80);
1483 k = atp_readb_base(atpdev, 0x28) & 0xcf;
1484 k |= 0xc0;
1485 atp_writeb_base(atpdev, 0x28, k);
1486 k = atp_readb_base(atpdev, 0x1f) | 0x80;
1487 atp_writeb_base(atpdev, 0x1f, k);
1488 k = atp_readb_base(atpdev, 0x29) | 0x01;
1489 atp_writeb_base(atpdev, 0x29, k);
1490 shpnt->max_id = 16;
1491 shpnt->max_lun = (atpdev->global_map[0] & 0x07) + 1;
1492 shpnt->max_channel = 1;
1493 shpnt->this_id = atpdev->host_id[0];
1494}
1495
1da177e4
LT		 1496/* return non-zero on detection */
1497static int atp870u_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1498{
1da177e4 1499 struct Scsi_Host *shpnt = NULL;
bdd5ac40 1500 struct atp_unit *atpdev;
bdd5ac40 1501 int err;
dc6a78f1 1502
b1e85063
OZ		 1503 if (ent->device == PCI_DEVICE_ID_ARTOP_AEC7610 && pdev->revision < 2) {
1504 dev_err(&pdev->dev, "ATP850S chips (AEC6710L/F cards) are not supported.\n");
1505 return -ENODEV;
1506 }
1507
bdd5ac40
OZ		 1508 err = pci_enable_device(pdev);
1509 if (err)
1510 goto fail;
1da177e4 1511
48ecddb4 1512 if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
1da177e4 1513 printk(KERN_ERR "atp870u: DMA mask required but not available.\n");
bdd5ac40
OZ		 1514 err = -EIO;
1515 goto disable_device;
1da177e4
LT		 1516 }
1517
11ec1318
OZ		 1518 err = pci_request_regions(pdev, "atp870u");
1519 if (err)
1520 goto disable_device;
1521 pci_set_master(pdev);
1522
bdd5ac40
OZ		 1523 err = -ENOMEM;
1524 shpnt = scsi_host_alloc(&atp870u_template, sizeof(struct atp_unit));
1525 if (!shpnt)
11ec1318 1526 goto release_region;
bdd5ac40
OZ		 1527
1528 atpdev = shost_priv(shpnt);
1529
1530 atpdev->host = shpnt;
1531 atpdev->pdev = pdev;
1532 pci_set_drvdata(pdev, atpdev);
1533
6c9b9c55
OZ		 1534 shpnt->io_port = pci_resource_start(pdev, 0);
1535 shpnt->io_port &= 0xfffffff8;
1536 shpnt->n_io_port = pci_resource_len(pdev, 0);
1537 atpdev->baseport = shpnt->io_port;
1538 shpnt->unique_id = shpnt->io_port;
1539 shpnt->irq = pdev->irq;
dc6a78f1 1540
f5f53a38
OZ		 1541 err = atp870u_init_tables(shpnt);
1542 if (err) {
1543 dev_err(&pdev->dev, "Unable to allocate tables for Acard controller\n");
1544 goto unregister;
1545 }
1546
c7e6a029
OZ		 1547 if (is880(atpdev))
1548 atp880_init(shpnt);
ecc6ff95
OZ		 1549 else if (is885(atpdev))
1550 atp885_init(shpnt);
4190230e
OZ		 1551 else
1552 atp870_init(shpnt);
1da177e4 1553
1729c0d2
OZ		 1554 err = request_irq(shpnt->irq, atp870u_intr_handle, IRQF_SHARED, "atp870u", shpnt);
1555 if (err) {
1556 dev_err(&pdev->dev, "Unable to allocate IRQ %d.\n", shpnt->irq);
1557 goto free_tables;
1558 }
1559
1560 err = scsi_add_host(shpnt, &pdev->dev);
1561 if (err)
1562 goto scsi_add_fail;
1563 scsi_scan_host(shpnt);
1564
1565 return 0;
1da177e4
LT		 1566
1567scsi_add_fail:
6c9b9c55 1568 free_irq(shpnt->irq, shpnt);
1da177e4 1569free_tables:
1da177e4
LT		 1570 atp870u_free_tables(shpnt);
1571unregister:
1da177e4 1572 scsi_host_put(shpnt);
11ec1318
OZ		 1573release_region:
1574 pci_release_regions(pdev);
bdd5ac40
OZ		 1575disable_device:
1576 pci_disable_device(pdev);
1577fail:
1578 return err;
1da177e4
LT		 1579}
1580
1581/* The abort command does not leave the device in a clean state where
1582 it is available to be used again. Until this gets worked out, we will
1583 leave it commented out. */
1584
1585static int atp870u_abort(struct scsi_cmnd * SCpnt)
1586{
1587 unsigned char j, k, c;
1588 struct scsi_cmnd *workrequ;
1da177e4
LT		 1589 struct atp_unit *dev;
1590 struct Scsi_Host *host;
1591 host = SCpnt->device->host;
1592
1593 dev = (struct atp_unit *)&host->hostdata;
422c0d61 1594 c = scmd_channel(SCpnt);
1da177e4
LT		 1595 printk(" atp870u: abort Channel = %x \n", c);
1596 printk("working=%x last_cmd=%x ", dev->working[c], dev->last_cmd[c]);
1597 printk(" quhdu=%x quendu=%x ", dev->quhd[c], dev->quend[c]);
1da177e4 1598 for (j = 0; j < 0x18; j++) {
6a3cebb6 1599 printk(" r%2x=%2x", j, atp_readb_io(dev, c, j));
1da177e4 1600 }
6a3cebb6
OZ		 1601 printk(" r1c=%2x", atp_readb_io(dev, c, 0x1c));
1602 printk(" r1f=%2x in_snd=%2x ", atp_readb_io(dev, c, 0x1f), dev->in_snd[c]);
1603 printk(" d00=%2x", atp_readb_pci(dev, c, 0x00));
1604 printk(" d02=%2x", atp_readb_pci(dev, c, 0x02));
1da177e4
LT		 1605 for(j=0;j<16;j++) {
1606 if (dev->id[c][j].curr_req != NULL) {
1607 workrequ = dev->id[c][j].curr_req;
1608 printk("\n que cdb= ");
1609 for (k=0; k < workrequ->cmd_len; k++) {
1610 printk(" %2x ",workrequ->cmnd[k]);
1611 }
1612 printk(" last_lenu= %x ",(unsigned int)dev->id[c][j].last_len);
1613 }
1614 }
1615 return SUCCESS;
1616}
1617
1618static const char *atp870u_info(struct Scsi_Host *notused)
1619{
1620 static char buffer[128];
1621
1622 strcpy(buffer, "ACARD AEC-6710/6712/67160 PCI Ultra/W/LVD SCSI-3 Adapter Driver V2.6+ac ");
1623
1624 return buffer;
1625}
1626
d773e422 1627static int atp870u_show_info(struct seq_file *m, struct Scsi_Host *HBAptr)
1da177e4 1628{
3d30079c
RV		 1629 seq_puts(m, "ACARD AEC-671X Driver Version: 2.6+ac\n\n"
1630 "Adapter Configuration:\n");
d773e422
AV		 1631 seq_printf(m, " Base IO: %#.4lx\n", HBAptr->io_port);
1632 seq_printf(m, " IRQ: %d\n", HBAptr->irq);
1633 return 0;
1da177e4
LT		 1634}
1635
1636
1637static int atp870u_biosparam(struct scsi_device *disk, struct block_device *dev,
1638 sector_t capacity, int *ip)
1639{
1640 int heads, sectors, cylinders;
1641
1642 heads = 64;
1643 sectors = 32;
1644 cylinders = (unsigned long)capacity / (heads * sectors);
1645 if (cylinders > 1024) {
1646 heads = 255;
1647 sectors = 63;
1648 cylinders = (unsigned long)capacity / (heads * sectors);
1649 }
1650 ip[0] = heads;
1651 ip[1] = sectors;
1652 ip[2] = cylinders;
1653
1654 return 0;
1655}
1656
1657static void atp870u_remove (struct pci_dev *pdev)
1658{
1659 struct atp_unit *devext = pci_get_drvdata(pdev);
1660 struct Scsi_Host *pshost = devext->host;
1661
1662
1663 scsi_remove_host(pshost);
1da177e4 1664 free_irq(pshost->irq, pshost);
11ec1318
OZ		 1665 pci_release_regions(pdev);
1666 pci_disable_device(pdev);
1da177e4 1667 atp870u_free_tables(pshost);
1da177e4 1668 scsi_host_put(pshost);
1da177e4
LT		 1669}
1670MODULE_LICENSE("GPL");
1671
1672static struct scsi_host_template atp870u_template = {
1673 .module = THIS_MODULE,
1674 .name = "atp870u" /* name */,
1675 .proc_name = "atp870u",
d773e422 1676 .show_info = atp870u_show_info,
1da177e4
LT		 1677 .info = atp870u_info /* info */,
1678 .queuecommand = atp870u_queuecommand /* queuecommand */,
1679 .eh_abort_handler = atp870u_abort /* abort */,
1680 .bios_param = atp870u_biosparam /* biosparm */,
1681 .can_queue = qcnt /* can_queue */,
1682 .this_id = 7 /* SCSI ID */,
35c33633 1683 .sg_tablesize = ATP870U_SCATTER /*SG_ALL*/,
1da177e4
LT		 1684 .max_sectors = ATP870U_MAX_SECTORS,
1685};
1686
1687static struct pci_device_id atp870u_id_table[] = {
1688 { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, ATP885_DEVID) },
1689 { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, ATP880_DEVID1) },
1690 { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, ATP880_DEVID2) },
1691 { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_AEC7610) },
1692 { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_AEC7612UW) },
1693 { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_AEC7612U) },
1694 { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_AEC7612S) },
1695 { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_AEC7612D) },
1696 { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_AEC7612SUW) },
1697 { PCI_DEVICE(PCI_VENDOR_ID_ARTOP, PCI_DEVICE_ID_ARTOP_8060) },
1698 { 0, },
1699};
1700
1701MODULE_DEVICE_TABLE(pci, atp870u_id_table);
1702
1703static struct pci_driver atp870u_driver = {
1704 .id_table = atp870u_id_table,
1705 .name = "atp870u",
1706 .probe = atp870u_probe,
6f039790 1707 .remove = atp870u_remove,
1da177e4
LT		 1708};
1709
1ccd7d68 1710module_pci_driver(atp870u_driver);
1da177e4 1711
4192a40f 1712static void atp_is(struct atp_unit *dev, unsigned char c, bool wide_chip, unsigned char lvdmode)
1da177e4 1713{
fa50b308 1714 unsigned char i, j, k, rmb, n;
1da177e4
LT		 1715 unsigned short int m;
1716 static unsigned char mbuf[512];
80b52a7f
OZ		 1717 static unsigned char satn[9] = { 0, 0, 0, 0, 0, 0, 0, 6, 6 };
1718 static unsigned char inqd[9] = { 0x12, 0, 0, 0, 0x24, 0, 0, 0x24, 6 };
1719 static unsigned char synn[6] = { 0x80, 1, 3, 1, 0x19, 0x0e };
1720 unsigned char synu[6] = { 0x80, 1, 3, 1, 0x0a, 0x0e };
1721 static unsigned char synw[6] = { 0x80, 1, 3, 1, 0x19, 0x0e };
460da918 1722 static unsigned char synw_870[6] = { 0x80, 1, 3, 1, 0x0c, 0x07 };
80b52a7f
OZ		 1723 unsigned char synuw[6] = { 0x80, 1, 3, 1, 0x0a, 0x0e };
1724 static unsigned char wide[6] = { 0x80, 1, 2, 3, 1, 0 };
1725 static unsigned char u3[9] = { 0x80, 1, 6, 4, 0x09, 00, 0x0e, 0x01, 0x02 };
1da177e4 1726
1da177e4 1727 for (i = 0; i < 16; i++) {
197fb8d8
OZ		 1728 if (!wide_chip && (i > 7))
1729 break;
1da177e4
LT		 1730 m = 1;
1731 m = m << i;
1732 if ((m & dev->active_id[c]) != 0) {
1733 continue;
1734 }
1735 if (i == dev->host_id[c]) {
1736 printk(KERN_INFO " ID: %2d Host Adapter\n", dev->host_id[c]);
1737 continue;
1738 }
197fb8d8 1739 atp_writeb_io(dev, c, 0x1b, wide_chip ? 0x01 : 0x00);
5d2a5a4f
OZ		 1740 atp_writeb_io(dev, c, 1, 0x08);
1741 atp_writeb_io(dev, c, 2, 0x7f);
1742 atp_writeb_io(dev, c, 3, satn[0]);
1743 atp_writeb_io(dev, c, 4, satn[1]);
1744 atp_writeb_io(dev, c, 5, satn[2]);
1745 atp_writeb_io(dev, c, 6, satn[3]);
1746 atp_writeb_io(dev, c, 7, satn[4]);
1747 atp_writeb_io(dev, c, 8, satn[5]);
1748 atp_writeb_io(dev, c, 0x0f, 0);
1749 atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
5d2a5a4f
OZ		 1750 atp_writeb_io(dev, c, 0x12, 0);
1751 atp_writeb_io(dev, c, 0x13, satn[6]);
1752 atp_writeb_io(dev, c, 0x14, satn[7]);
1da177e4
LT		 1753 j = i;
1754 if ((j & 0x08) != 0) {
1755 j = (j & 0x07) | 0x40;
1756 }
5d2a5a4f
OZ		 1757 atp_writeb_io(dev, c, 0x15, j);
1758 atp_writeb_io(dev, c, 0x18, satn[8]);
1da177e4 1759
5d2a5a4f 1760 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1da177e4 1761 cpu_relax();
80b52a7f
OZ		 1762
1763 if (atp_readb_io(dev, c, 0x17) != 0x11 && atp_readb_io(dev, c, 0x17) != 0x8e)
1da177e4 1764 continue;
80b52a7f 1765
5d2a5a4f 1766 while (atp_readb_io(dev, c, 0x17) != 0x8e)
1da177e4 1767 cpu_relax();
80b52a7f 1768
1da177e4
LT		 1769 dev->active_id[c] |= m;
1770
5d2a5a4f 1771 atp_writeb_io(dev, c, 0x10, 0x30);
b922a449 1772 if (is885(dev) || is880(dev))
460da918
OZ		 1773 atp_writeb_io(dev, c, 0x14, 0x00);
1774 else /* result of is870() merge - is this a bug? */
1775 atp_writeb_io(dev, c, 0x04, 0x00);
1da177e4
LT		 1776
1777phase_cmd:
5d2a5a4f 1778 atp_writeb_io(dev, c, 0x18, 0x08);
80b52a7f 1779
5d2a5a4f 1780 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1da177e4 1781 cpu_relax();
80b52a7f 1782
5d2a5a4f 1783 j = atp_readb_io(dev, c, 0x17);
1da177e4 1784 if (j != 0x16) {
5d2a5a4f 1785 atp_writeb_io(dev, c, 0x10, 0x41);
1da177e4
LT		 1786 goto phase_cmd;
1787 }
1788sel_ok:
5d2a5a4f
OZ		 1789 atp_writeb_io(dev, c, 3, inqd[0]);
1790 atp_writeb_io(dev, c, 4, inqd[1]);
1791 atp_writeb_io(dev, c, 5, inqd[2]);
1792 atp_writeb_io(dev, c, 6, inqd[3]);
1793 atp_writeb_io(dev, c, 7, inqd[4]);
1794 atp_writeb_io(dev, c, 8, inqd[5]);
1795 atp_writeb_io(dev, c, 0x0f, 0);
1796 atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
1797 atp_writeb_io(dev, c, 0x12, 0);
1798 atp_writeb_io(dev, c, 0x13, inqd[6]);
1799 atp_writeb_io(dev, c, 0x14, inqd[7]);
1800 atp_writeb_io(dev, c, 0x18, inqd[8]);
80b52a7f 1801
5d2a5a4f 1802 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1da177e4 1803 cpu_relax();
80b52a7f
OZ		 1804
1805 if (atp_readb_io(dev, c, 0x17) != 0x11 && atp_readb_io(dev, c, 0x17) != 0x8e)
1da177e4 1806 continue;
80b52a7f 1807
5d2a5a4f 1808 while (atp_readb_io(dev, c, 0x17) != 0x8e)
1da177e4 1809 cpu_relax();
80b52a7f 1810
197fb8d8
OZ		 1811 if (wide_chip)
1812 atp_writeb_io(dev, c, 0x1b, 0x00);
1813
5d2a5a4f 1814 atp_writeb_io(dev, c, 0x18, 0x08);
1da177e4
LT		 1815 j = 0;
1816rd_inq_data:
5d2a5a4f 1817 k = atp_readb_io(dev, c, 0x1f);
1da177e4 1818 if ((k & 0x01) != 0) {
5d2a5a4f 1819 mbuf[j++] = atp_readb_io(dev, c, 0x19);
1da177e4
LT		 1820 goto rd_inq_data;
1821 }
1822 if ((k & 0x80) == 0) {
1823 goto rd_inq_data;
1824 }
5d2a5a4f 1825 j = atp_readb_io(dev, c, 0x17);
1da177e4
LT		 1826 if (j == 0x16) {
1827 goto inq_ok;
1828 }
5d2a5a4f
OZ		 1829 atp_writeb_io(dev, c, 0x10, 0x46);
1830 atp_writeb_io(dev, c, 0x12, 0);
1831 atp_writeb_io(dev, c, 0x13, 0);
1832 atp_writeb_io(dev, c, 0x14, 0);
1833 atp_writeb_io(dev, c, 0x18, 0x08);
80b52a7f 1834
5d2a5a4f 1835 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1da177e4 1836 cpu_relax();
80b52a7f
OZ		 1837
1838 if (atp_readb_io(dev, c, 0x17) != 0x16)
1da177e4 1839 goto sel_ok;
80b52a7f 1840
1da177e4
LT		 1841inq_ok:
1842 mbuf[36] = 0;
80b52a7f 1843 printk(KERN_INFO " ID: %2d %s\n", i, &mbuf[8]);
1da177e4
LT		 1844 dev->id[c][i].devtype = mbuf[0];
1845 rmb = mbuf[1];
1846 n = mbuf[7];
197fb8d8
OZ		 1847 if (!wide_chip)
1848 goto not_wide;
1da177e4
LT		 1849 if ((mbuf[7] & 0x60) == 0) {
1850 goto not_wide;
1851 }
b922a449 1852 if (is885(dev) || is880(dev)) {
197fb8d8
OZ		 1853 if ((i < 8) && ((dev->global_map[c] & 0x20) == 0))
1854 goto not_wide;
1855 } else { /* result of is870() merge - is this a bug? */
1856 if ((dev->global_map[c] & 0x20) == 0)
1857 goto not_wide;
1da177e4
LT		 1858 }
1859 if (lvdmode == 0) {
80b52a7f 1860 goto chg_wide;
1da177e4 1861 }
80b52a7f
OZ		 1862 if (dev->sp[c][i] != 0x04) // force u2
1863 {
1864 goto chg_wide;
1da177e4
LT		 1865 }
1866
5d2a5a4f
OZ		 1867 atp_writeb_io(dev, c, 0x1b, 0x01);
1868 atp_writeb_io(dev, c, 3, satn[0]);
1869 atp_writeb_io(dev, c, 4, satn[1]);
1870 atp_writeb_io(dev, c, 5, satn[2]);
1871 atp_writeb_io(dev, c, 6, satn[3]);
1872 atp_writeb_io(dev, c, 7, satn[4]);
1873 atp_writeb_io(dev, c, 8, satn[5]);
1874 atp_writeb_io(dev, c, 0x0f, 0);
1875 atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
1876 atp_writeb_io(dev, c, 0x12, 0);
1877 atp_writeb_io(dev, c, 0x13, satn[6]);
1878 atp_writeb_io(dev, c, 0x14, satn[7]);
1879 atp_writeb_io(dev, c, 0x18, satn[8]);
1880
1881 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1da177e4 1882 cpu_relax();
80b52a7f
OZ		 1883
1884 if (atp_readb_io(dev, c, 0x17) != 0x11 && atp_readb_io(dev, c, 0x17) != 0x8e)
1da177e4 1885 continue;
80b52a7f 1886
5d2a5a4f 1887 while (atp_readb_io(dev, c, 0x17) != 0x8e)
1da177e4 1888 cpu_relax();
80b52a7f 1889
1da177e4
LT		 1890try_u3:
1891 j = 0;
5d2a5a4f
OZ		 1892 atp_writeb_io(dev, c, 0x14, 0x09);
1893 atp_writeb_io(dev, c, 0x18, 0x20);
e2c22b45 1894
5d2a5a4f
OZ		 1895 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
1896 if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0)
1897 atp_writeb_io(dev, c, 0x19, u3[j++]);
1da177e4
LT		 1898 cpu_relax();
1899 }
80b52a7f 1900
5d2a5a4f 1901 while ((atp_readb_io(dev, c, 0x17) & 0x80) == 0x00)
1da177e4 1902 cpu_relax();
80b52a7f 1903
5d2a5a4f 1904 j = atp_readb_io(dev, c, 0x17) & 0x0f;
1da177e4
LT		 1905 if (j == 0x0f) {
1906 goto u3p_in;
1907 }
1908 if (j == 0x0a) {
1909 goto u3p_cmd;
1910 }
1911 if (j == 0x0e) {
1912 goto try_u3;
1913 }
1914 continue;
1915u3p_out:
5d2a5a4f
OZ		 1916 atp_writeb_io(dev, c, 0x18, 0x20);
1917 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
1918 if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0)
1919 atp_writeb_io(dev, c, 0x19, 0);
1da177e4
LT		 1920 cpu_relax();
1921 }
5d2a5a4f 1922 j = atp_readb_io(dev, c, 0x17) & 0x0f;
1da177e4
LT		 1923 if (j == 0x0f) {
1924 goto u3p_in;
1925 }
1926 if (j == 0x0a) {
1927 goto u3p_cmd;
1928 }
1929 if (j == 0x0e) {
1930 goto u3p_out;
1931 }
1932 continue;
1933u3p_in:
5d2a5a4f
OZ		 1934 atp_writeb_io(dev, c, 0x14, 0x09);
1935 atp_writeb_io(dev, c, 0x18, 0x20);
1da177e4
LT		 1936 k = 0;
1937u3p_in1:
5d2a5a4f 1938 j = atp_readb_io(dev, c, 0x1f);
1da177e4 1939 if ((j & 0x01) != 0) {
5d2a5a4f 1940 mbuf[k++] = atp_readb_io(dev, c, 0x19);
1da177e4
LT		 1941 goto u3p_in1;
1942 }
1943 if ((j & 0x80) == 0x00) {
1944 goto u3p_in1;
1945 }
5d2a5a4f 1946 j = atp_readb_io(dev, c, 0x17) & 0x0f;
1da177e4
LT		 1947 if (j == 0x0f) {
1948 goto u3p_in;
1949 }
1950 if (j == 0x0a) {
1951 goto u3p_cmd;
1952 }
1953 if (j == 0x0e) {
1954 goto u3p_out;
1955 }
1956 continue;
1957u3p_cmd:
5d2a5a4f
OZ		 1958 atp_writeb_io(dev, c, 0x10, 0x30);
1959 atp_writeb_io(dev, c, 0x14, 0x00);
1960 atp_writeb_io(dev, c, 0x18, 0x08);
80b52a7f 1961
5d2a5a4f 1962 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00);
80b52a7f 1963
5d2a5a4f 1964 j = atp_readb_io(dev, c, 0x17);
1da177e4
LT		 1965 if (j != 0x16) {
1966 if (j == 0x4e) {
1967 goto u3p_out;
1968 }
1969 continue;
1970 }
1971 if (mbuf[0] != 0x01) {
1972 goto chg_wide;
1973 }
1974 if (mbuf[1] != 0x06) {
1975 goto chg_wide;
1976 }
1977 if (mbuf[2] != 0x04) {
1978 goto chg_wide;
1979 }
1980 if (mbuf[3] == 0x09) {
1981 m = 1;
1982 m = m << i;
1983 dev->wide_id[c] |= m;
1984 dev->id[c][i].devsp = 0xce;
1985#ifdef ED_DBGP
1986 printk("dev->id[%2d][%2d].devsp = %2x\n",c,i,dev->id[c][i].devsp);
1987#endif
1988 continue;
1989 }
1990chg_wide:
5d2a5a4f
OZ		 1991 atp_writeb_io(dev, c, 0x1b, 0x01);
1992 atp_writeb_io(dev, c, 3, satn[0]);
1993 atp_writeb_io(dev, c, 4, satn[1]);
1994 atp_writeb_io(dev, c, 5, satn[2]);
1995 atp_writeb_io(dev, c, 6, satn[3]);
1996 atp_writeb_io(dev, c, 7, satn[4]);
1997 atp_writeb_io(dev, c, 8, satn[5]);
1998 atp_writeb_io(dev, c, 0x0f, 0);
1999 atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
2000 atp_writeb_io(dev, c, 0x12, 0);
2001 atp_writeb_io(dev, c, 0x13, satn[6]);
2002 atp_writeb_io(dev, c, 0x14, satn[7]);
2003 atp_writeb_io(dev, c, 0x18, satn[8]);
2004
2005 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1da177e4 2006 cpu_relax();
80b52a7f
OZ		 2007
2008 if (atp_readb_io(dev, c, 0x17) != 0x11 && atp_readb_io(dev, c, 0x17) != 0x8e)
1da177e4 2009 continue;
80b52a7f 2010
5d2a5a4f 2011 while (atp_readb_io(dev, c, 0x17) != 0x8e)
1da177e4 2012 cpu_relax();
80b52a7f 2013
1da177e4
LT		 2014try_wide:
2015 j = 0;
5d2a5a4f
OZ		 2016 atp_writeb_io(dev, c, 0x14, 0x05);
2017 atp_writeb_io(dev, c, 0x18, 0x20);
e2c22b45 2018
5d2a5a4f
OZ		 2019 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
2020 if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0)
2021 atp_writeb_io(dev, c, 0x19, wide[j++]);
1da177e4
LT		 2022 cpu_relax();
2023 }
80b52a7f 2024
5d2a5a4f 2025 while ((atp_readb_io(dev, c, 0x17) & 0x80) == 0x00)
1da177e4 2026 cpu_relax();
80b52a7f 2027
5d2a5a4f 2028 j = atp_readb_io(dev, c, 0x17) & 0x0f;
1da177e4
LT		 2029 if (j == 0x0f) {
2030 goto widep_in;
2031 }
2032 if (j == 0x0a) {
2033 goto widep_cmd;
2034 }
2035 if (j == 0x0e) {
2036 goto try_wide;
2037 }
2038 continue;
2039widep_out:
5d2a5a4f
OZ		 2040 atp_writeb_io(dev, c, 0x18, 0x20);
2041 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
2042 if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0)
2043 atp_writeb_io(dev, c, 0x19, 0);
1da177e4
LT		 2044 cpu_relax();
2045 }
5d2a5a4f 2046 j = atp_readb_io(dev, c, 0x17) & 0x0f;
1da177e4
LT		 2047 if (j == 0x0f) {
2048 goto widep_in;
2049 }
2050 if (j == 0x0a) {
2051 goto widep_cmd;
2052 }
2053 if (j == 0x0e) {
2054 goto widep_out;
2055 }
2056 continue;
2057widep_in:
5d2a5a4f
OZ		 2058 atp_writeb_io(dev, c, 0x14, 0xff);
2059 atp_writeb_io(dev, c, 0x18, 0x20);
1da177e4
LT		 2060 k = 0;
2061widep_in1:
5d2a5a4f 2062 j = atp_readb_io(dev, c, 0x1f);
1da177e4 2063 if ((j & 0x01) != 0) {
5d2a5a4f 2064 mbuf[k++] = atp_readb_io(dev, c, 0x19);
1da177e4
LT		 2065 goto widep_in1;
2066 }
2067 if ((j & 0x80) == 0x00) {
2068 goto widep_in1;
2069 }
5d2a5a4f 2070 j = atp_readb_io(dev, c, 0x17) & 0x0f;
1da177e4
LT		 2071 if (j == 0x0f) {
2072 goto widep_in;
2073 }
2074 if (j == 0x0a) {
2075 goto widep_cmd;
2076 }
2077 if (j == 0x0e) {
2078 goto widep_out;
2079 }
2080 continue;
2081widep_cmd:
5d2a5a4f
OZ		 2082 atp_writeb_io(dev, c, 0x10, 0x30);
2083 atp_writeb_io(dev, c, 0x14, 0x00);
2084 atp_writeb_io(dev, c, 0x18, 0x08);
80b52a7f 2085
5d2a5a4f 2086 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1da177e4 2087 cpu_relax();
80b52a7f 2088
5d2a5a4f 2089 j = atp_readb_io(dev, c, 0x17);
1da177e4
LT		 2090 if (j != 0x16) {
2091 if (j == 0x4e) {
2092 goto widep_out;
2093 }
2094 continue;
2095 }
2096 if (mbuf[0] != 0x01) {
2097 goto not_wide;
2098 }
2099 if (mbuf[1] != 0x02) {
2100 goto not_wide;
2101 }
2102 if (mbuf[2] != 0x03) {
2103 goto not_wide;
2104 }
2105 if (mbuf[3] != 0x01) {
2106 goto not_wide;
2107 }
2108 m = 1;
2109 m = m << i;
2110 dev->wide_id[c] |= m;
2111not_wide:
80b52a7f 2112 if ((dev->id[c][i].devtype == 0x00) || (dev->id[c][i].devtype == 0x07) || ((dev->id[c][i].devtype == 0x05) && ((n & 0x10) != 0))) {
1da177e4
LT		 2113 m = 1;
2114 m = m << i;
2115 if ((dev->async[c] & m) != 0) {
80b52a7f 2116 goto set_sync;
1da177e4
LT		 2117 }
2118 }
2119 continue;
2120set_sync:
b922a449 2121 if ((!is885(dev) && !is880(dev)) || (dev->sp[c][i] == 0x02)) {
80b52a7f
OZ		 2122 synu[4] = 0x0c;
2123 synuw[4] = 0x0c;
1da177e4 2124 } else {
80b52a7f
OZ		 2125 if (dev->sp[c][i] >= 0x03) {
2126 synu[4] = 0x0a;
2127 synuw[4] = 0x0a;
2128 }
1da177e4 2129 }
1da177e4
LT		 2130 j = 0;
2131 if ((m & dev->wide_id[c]) != 0) {
2132 j |= 0x01;
2133 }
5d2a5a4f
OZ		 2134 atp_writeb_io(dev, c, 0x1b, j);
2135 atp_writeb_io(dev, c, 3, satn[0]);
2136 atp_writeb_io(dev, c, 4, satn[1]);
2137 atp_writeb_io(dev, c, 5, satn[2]);
2138 atp_writeb_io(dev, c, 6, satn[3]);
2139 atp_writeb_io(dev, c, 7, satn[4]);
2140 atp_writeb_io(dev, c, 8, satn[5]);
2141 atp_writeb_io(dev, c, 0x0f, 0);
2142 atp_writeb_io(dev, c, 0x11, dev->id[c][i].devsp);
2143 atp_writeb_io(dev, c, 0x12, 0);
2144 atp_writeb_io(dev, c, 0x13, satn[6]);
2145 atp_writeb_io(dev, c, 0x14, satn[7]);
2146 atp_writeb_io(dev, c, 0x18, satn[8]);
2147
2148 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1da177e4 2149 cpu_relax();
80b52a7f
OZ		 2150
2151 if (atp_readb_io(dev, c, 0x17) != 0x11 && atp_readb_io(dev, c, 0x17) != 0x8e)
1da177e4 2152 continue;
80b52a7f 2153
5d2a5a4f 2154 while (atp_readb_io(dev, c, 0x17) != 0x8e)
1da177e4 2155 cpu_relax();
80b52a7f 2156
1da177e4
LT		 2157try_sync:
2158 j = 0;
5d2a5a4f
OZ		 2159 atp_writeb_io(dev, c, 0x14, 0x06);
2160 atp_writeb_io(dev, c, 0x18, 0x20);
e2c22b45 2161
5d2a5a4f
OZ		 2162 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0) {
2163 if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0) {
1da177e4 2164 if ((m & dev->wide_id[c]) != 0) {
b922a449 2165 if (is885(dev) || is880(dev)) {
460da918
OZ		 2166 if ((m & dev->ultra_map[c]) != 0) {
2167 atp_writeb_io(dev, c, 0x19, synuw[j++]);
2168 } else {
2169 atp_writeb_io(dev, c, 0x19, synw[j++]);
2170 }
2171 } else
2172 atp_writeb_io(dev, c, 0x19, synw_870[j++]);
1da177e4
LT		 2173 } else {
2174 if ((m & dev->ultra_map[c]) != 0) {
5d2a5a4f 2175 atp_writeb_io(dev, c, 0x19, synu[j++]);
1da177e4 2176 } else {
5d2a5a4f 2177 atp_writeb_io(dev, c, 0x19, synn[j++]);
1da177e4
LT		 2178 }
2179 }
1da177e4
LT		 2180 }
2181 }
80b52a7f 2182
5d2a5a4f 2183 while ((atp_readb_io(dev, c, 0x17) & 0x80) == 0x00)
1da177e4 2184 cpu_relax();
80b52a7f 2185
5d2a5a4f 2186 j = atp_readb_io(dev, c, 0x17) & 0x0f;
1da177e4
LT		 2187 if (j == 0x0f) {
2188 goto phase_ins;
2189 }
2190 if (j == 0x0a) {
2191 goto phase_cmds;
2192 }
2193 if (j == 0x0e) {
2194 goto try_sync;
2195 }
2196 continue;
2197phase_outs:
5d2a5a4f
OZ		 2198 atp_writeb_io(dev, c, 0x18, 0x20);
2199 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00) {
2200 if ((atp_readb_io(dev, c, 0x1f) & 0x01) != 0x00)
2201 atp_writeb_io(dev, c, 0x19, 0x00);
1da177e4
LT		 2202 cpu_relax();
2203 }
5d2a5a4f 2204 j = atp_readb_io(dev, c, 0x17);
1da177e4
LT		 2205 if (j == 0x85) {
2206 goto tar_dcons;
2207 }
2208 j &= 0x0f;
2209 if (j == 0x0f) {
2210 goto phase_ins;
2211 }
2212 if (j == 0x0a) {
2213 goto phase_cmds;
2214 }
2215 if (j == 0x0e) {
2216 goto phase_outs;
2217 }
2218 continue;
2219phase_ins:
b922a449 2220 if (is885(dev) || is880(dev))
460da918
OZ		 2221 atp_writeb_io(dev, c, 0x14, 0x06);
2222 else
2223 atp_writeb_io(dev, c, 0x14, 0xff);
5d2a5a4f 2224 atp_writeb_io(dev, c, 0x18, 0x20);
1da177e4
LT		 2225 k = 0;
2226phase_ins1:
5d2a5a4f 2227 j = atp_readb_io(dev, c, 0x1f);
1da177e4 2228 if ((j & 0x01) != 0x00) {
5d2a5a4f 2229 mbuf[k++] = atp_readb_io(dev, c, 0x19);
1da177e4
LT		 2230 goto phase_ins1;
2231 }
2232 if ((j & 0x80) == 0x00) {
2233 goto phase_ins1;
2234 }
80b52a7f 2235
5d2a5a4f 2236 while ((atp_readb_io(dev, c, 0x17) & 0x80) == 0x00);
80b52a7f 2237
5d2a5a4f 2238 j = atp_readb_io(dev, c, 0x17);
1da177e4
LT		 2239 if (j == 0x85) {
2240 goto tar_dcons;
2241 }
2242 j &= 0x0f;
2243 if (j == 0x0f) {
2244 goto phase_ins;
2245 }
2246 if (j == 0x0a) {
2247 goto phase_cmds;
2248 }
2249 if (j == 0x0e) {
2250 goto phase_outs;
2251 }
2252 continue;
2253phase_cmds:
5d2a5a4f 2254 atp_writeb_io(dev, c, 0x10, 0x30);
1da177e4 2255tar_dcons:
5d2a5a4f
OZ		 2256 atp_writeb_io(dev, c, 0x14, 0x00);
2257 atp_writeb_io(dev, c, 0x18, 0x08);
80b52a7f 2258
5d2a5a4f 2259 while ((atp_readb_io(dev, c, 0x1f) & 0x80) == 0x00)
1da177e4 2260 cpu_relax();
80b52a7f 2261
5d2a5a4f 2262 j = atp_readb_io(dev, c, 0x17);
1da177e4
LT		 2263 if (j != 0x16) {
2264 continue;
2265 }
2266 if (mbuf[0] != 0x01) {
2267 continue;
2268 }
2269 if (mbuf[1] != 0x03) {
2270 continue;
2271 }
2272 if (mbuf[4] == 0x00) {
2273 continue;
2274 }
2275 if (mbuf[3] > 0x64) {
2276 continue;
2277 }
b922a449 2278 if (is885(dev) || is880(dev)) {
460da918
OZ		 2279 if (mbuf[4] > 0x0e) {
2280 mbuf[4] = 0x0e;
2281 }
2282 } else {
2283 if (mbuf[4] > 0x0c) {
2284 mbuf[4] = 0x0c;
2285 }
1da177e4
LT		 2286 }
2287 dev->id[c][i].devsp = mbuf[4];
b922a449 2288 if (is885(dev) || is880(dev))
460da918
OZ		 2289 if (mbuf[3] < 0x0c) {
2290 j = 0xb0;
2291 goto set_syn_ok;
2292 }
1da177e4
LT		 2293 if ((mbuf[3] < 0x0d) && (rmb == 0)) {
2294 j = 0xa0;
2295 goto set_syn_ok;
2296 }
2297 if (mbuf[3] < 0x1a) {
2298 j = 0x20;
2299 goto set_syn_ok;
2300 }
2301 if (mbuf[3] < 0x33) {
2302 j = 0x40;
2303 goto set_syn_ok;
2304 }
2305 if (mbuf[3] < 0x4c) {
2306 j = 0x50;
2307 goto set_syn_ok;
2308 }
2309 j = 0x60;
80b52a7f 2310set_syn_ok:
1da177e4 2311 dev->id[c][i].devsp = (dev->id[c][i].devsp & 0x0f) | j;
80b52a7f 2312#ifdef ED_DBGP
1da177e4
LT		 2313 printk("dev->id[%2d][%2d].devsp = %2x\n",c,i,dev->id[c][i].devsp);
2314#endif
2315 }
1da177e4 2316}
Empty description
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