xref: /freebsd/sys/cam/ata/ata_all.c (revision 595e514d0df2bac5b813d35f83e32875dbf16a83)
1 /*-
2  * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer,
10  *    without modification, immediately at the beginning of the file.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include <sys/param.h>
31 
32 #ifdef _KERNEL
33 #include <opt_scsi.h>
34 
35 #include <sys/systm.h>
36 #include <sys/libkern.h>
37 #include <sys/kernel.h>
38 #include <sys/sysctl.h>
39 #else
40 #include <errno.h>
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <string.h>
44 #ifndef min
45 #define min(a,b) (((a)<(b))?(a):(b))
46 #endif
47 #endif
48 
49 #include <cam/cam.h>
50 #include <cam/cam_ccb.h>
51 #include <cam/cam_queue.h>
52 #include <cam/cam_xpt.h>
53 #include <sys/ata.h>
54 #include <cam/ata/ata_all.h>
55 #include <sys/sbuf.h>
56 #include <sys/endian.h>
57 
58 int
59 ata_version(int ver)
60 {
61 	int bit;
62 
63 	if (ver == 0xffff)
64 		return 0;
65 	for (bit = 15; bit >= 0; bit--)
66 		if (ver & (1<<bit))
67 			return bit;
68 	return 0;
69 }
70 
71 char *
72 ata_op_string(struct ata_cmd *cmd)
73 {
74 
75 	if (cmd->control & 0x04)
76 		return ("SOFT_RESET");
77 	switch (cmd->command) {
78 	case 0x00: return ("NOP");
79 	case 0x03: return ("CFA_REQUEST_EXTENDED_ERROR");
80 	case 0x06:
81 		switch (cmd->features) {
82 	        case 0x01: return ("DSM TRIM");
83 	        }
84 	        return "DSM";
85 	case 0x08: return ("DEVICE_RESET");
86 	case 0x20: return ("READ");
87 	case 0x24: return ("READ48");
88 	case 0x25: return ("READ_DMA48");
89 	case 0x26: return ("READ_DMA_QUEUED48");
90 	case 0x27: return ("READ_NATIVE_MAX_ADDRESS48");
91 	case 0x29: return ("READ_MUL48");
92 	case 0x2a: return ("READ_STREAM_DMA48");
93 	case 0x2b: return ("READ_STREAM48");
94 	case 0x2f: return ("READ_LOG_EXT");
95 	case 0x30: return ("WRITE");
96 	case 0x34: return ("WRITE48");
97 	case 0x35: return ("WRITE_DMA48");
98 	case 0x36: return ("WRITE_DMA_QUEUED48");
99 	case 0x37: return ("SET_MAX_ADDRESS48");
100 	case 0x39: return ("WRITE_MUL48");
101 	case 0x3a: return ("WRITE_STREAM_DMA48");
102 	case 0x3b: return ("WRITE_STREAM48");
103 	case 0x3d: return ("WRITE_DMA_FUA48");
104 	case 0x3e: return ("WRITE_DMA_QUEUED_FUA48");
105 	case 0x3f: return ("WRITE_LOG_EXT");
106 	case 0x40: return ("READ_VERIFY");
107 	case 0x42: return ("READ_VERIFY48");
108 	case 0x51: return ("CONFIGURE_STREAM");
109 	case 0x60: return ("READ_FPDMA_QUEUED");
110 	case 0x61: return ("WRITE_FPDMA_QUEUED");
111 	case 0x67:
112 		if (cmd->features == 0xec)
113 			return ("SEP_ATTN IDENTIFY");
114 		switch (cmd->lba_low) {
115 		case 0x00: return ("SEP_ATTN READ BUFFER");
116 		case 0x02: return ("SEP_ATTN RECEIVE DIAGNOSTIC RESULTS");
117 		case 0x80: return ("SEP_ATTN WRITE BUFFER");
118 		case 0x82: return ("SEP_ATTN SEND DIAGNOSTIC");
119 		}
120 		return ("SEP_ATTN");
121 	case 0x70: return ("SEEK");
122 	case 0x87: return ("CFA_TRANSLATE_SECTOR");
123 	case 0x90: return ("EXECUTE_DEVICE_DIAGNOSTIC");
124 	case 0x92: return ("DOWNLOAD_MICROCODE");
125 	case 0xa0: return ("PACKET");
126 	case 0xa1: return ("ATAPI_IDENTIFY");
127 	case 0xa2: return ("SERVICE");
128 	case 0xb0: return ("SMART");
129 	case 0xb1: return ("DEVICE CONFIGURATION");
130 	case 0xc0: return ("CFA_ERASE");
131 	case 0xc4: return ("READ_MUL");
132 	case 0xc5: return ("WRITE_MUL");
133 	case 0xc6: return ("SET_MULTI");
134 	case 0xc7: return ("READ_DMA_QUEUED");
135 	case 0xc8: return ("READ_DMA");
136 	case 0xca: return ("WRITE_DMA");
137 	case 0xcc: return ("WRITE_DMA_QUEUED");
138 	case 0xcd: return ("CFA_WRITE_MULTIPLE_WITHOUT_ERASE");
139 	case 0xce: return ("WRITE_MUL_FUA48");
140 	case 0xd1: return ("CHECK_MEDIA_CARD_TYPE");
141 	case 0xda: return ("GET_MEDIA_STATUS");
142 	case 0xde: return ("MEDIA_LOCK");
143 	case 0xdf: return ("MEDIA_UNLOCK");
144 	case 0xe0: return ("STANDBY_IMMEDIATE");
145 	case 0xe1: return ("IDLE_IMMEDIATE");
146 	case 0xe2: return ("STANDBY");
147 	case 0xe3: return ("IDLE");
148 	case 0xe4: return ("READ_BUFFER/PM");
149 	case 0xe5: return ("CHECK_POWER_MODE");
150 	case 0xe6: return ("SLEEP");
151 	case 0xe7: return ("FLUSHCACHE");
152 	case 0xe8: return ("WRITE_PM");
153 	case 0xea: return ("FLUSHCACHE48");
154 	case 0xec: return ("ATA_IDENTIFY");
155 	case 0xed: return ("MEDIA_EJECT");
156 	case 0xef:
157 		switch (cmd->features) {
158 	        case 0x03: return ("SETFEATURES SET TRANSFER MODE");
159 	        case 0x02: return ("SETFEATURES ENABLE WCACHE");
160 	        case 0x82: return ("SETFEATURES DISABLE WCACHE");
161 	        case 0x06: return ("SETFEATURES ENABLE PUIS");
162 	        case 0x86: return ("SETFEATURES DISABLE PUIS");
163 	        case 0x07: return ("SETFEATURES SPIN-UP");
164 	        case 0x10: return ("SETFEATURES ENABLE SATA FEATURE");
165 	        case 0x90: return ("SETFEATURES DISABLE SATA FEATURE");
166 	        case 0xaa: return ("SETFEATURES ENABLE RCACHE");
167 	        case 0x55: return ("SETFEATURES DISABLE RCACHE");
168 	        }
169 	        return "SETFEATURES";
170 	case 0xf1: return ("SECURITY_SET_PASSWORD");
171 	case 0xf2: return ("SECURITY_UNLOCK");
172 	case 0xf3: return ("SECURITY_ERASE_PREPARE");
173 	case 0xf4: return ("SECURITY_ERASE_UNIT");
174 	case 0xf5: return ("SECURITY_FREEZE_LOCK");
175 	case 0xf6: return ("SECURITY_DISABLE_PASSWORD");
176 	case 0xf8: return ("READ_NATIVE_MAX_ADDRESS");
177 	case 0xf9: return ("SET_MAX_ADDRESS");
178 	}
179 	return "UNKNOWN";
180 }
181 
182 char *
183 ata_cmd_string(struct ata_cmd *cmd, char *cmd_string, size_t len)
184 {
185 
186 	snprintf(cmd_string, len, "%02x %02x %02x %02x "
187 	    "%02x %02x %02x %02x %02x %02x %02x %02x",
188 	    cmd->command, cmd->features,
189 	    cmd->lba_low, cmd->lba_mid, cmd->lba_high, cmd->device,
190 	    cmd->lba_low_exp, cmd->lba_mid_exp, cmd->lba_high_exp,
191 	    cmd->features_exp, cmd->sector_count, cmd->sector_count_exp);
192 
193 	return(cmd_string);
194 }
195 
196 char *
197 ata_res_string(struct ata_res *res, char *res_string, size_t len)
198 {
199 
200 	snprintf(res_string, len, "%02x %02x %02x %02x "
201 	    "%02x %02x %02x %02x %02x %02x %02x",
202 	    res->status, res->error,
203 	    res->lba_low, res->lba_mid, res->lba_high, res->device,
204 	    res->lba_low_exp, res->lba_mid_exp, res->lba_high_exp,
205 	    res->sector_count, res->sector_count_exp);
206 
207 	return(res_string);
208 }
209 
210 /*
211  * ata_command_sbuf() returns 0 for success and -1 for failure.
212  */
213 int
214 ata_command_sbuf(struct ccb_ataio *ataio, struct sbuf *sb)
215 {
216 	char cmd_str[(12 * 3) + 1];
217 
218 	sbuf_printf(sb, "%s. ACB: %s",
219 	    ata_op_string(&ataio->cmd),
220 	    ata_cmd_string(&ataio->cmd, cmd_str, sizeof(cmd_str)));
221 
222 	return(0);
223 }
224 
225 /*
226  * ata_status_abuf() returns 0 for success and -1 for failure.
227  */
228 int
229 ata_status_sbuf(struct ccb_ataio *ataio, struct sbuf *sb)
230 {
231 
232 	sbuf_printf(sb, "ATA status: %02x (%s%s%s%s%s%s%s%s)",
233 	    ataio->res.status,
234 	    (ataio->res.status & 0x80) ? "BSY " : "",
235 	    (ataio->res.status & 0x40) ? "DRDY " : "",
236 	    (ataio->res.status & 0x20) ? "DF " : "",
237 	    (ataio->res.status & 0x10) ? "SERV " : "",
238 	    (ataio->res.status & 0x08) ? "DRQ " : "",
239 	    (ataio->res.status & 0x04) ? "CORR " : "",
240 	    (ataio->res.status & 0x02) ? "IDX " : "",
241 	    (ataio->res.status & 0x01) ? "ERR" : "");
242 	if (ataio->res.status & 1) {
243 	    sbuf_printf(sb, ", error: %02x (%s%s%s%s%s%s%s%s)",
244 		ataio->res.error,
245 		(ataio->res.error & 0x80) ? "ICRC " : "",
246 		(ataio->res.error & 0x40) ? "UNC " : "",
247 		(ataio->res.error & 0x20) ? "MC " : "",
248 		(ataio->res.error & 0x10) ? "IDNF " : "",
249 		(ataio->res.error & 0x08) ? "MCR " : "",
250 		(ataio->res.error & 0x04) ? "ABRT " : "",
251 		(ataio->res.error & 0x02) ? "NM " : "",
252 		(ataio->res.error & 0x01) ? "ILI" : "");
253 	}
254 
255 	return(0);
256 }
257 
258 /*
259  * ata_res_sbuf() returns 0 for success and -1 for failure.
260  */
261 int
262 ata_res_sbuf(struct ccb_ataio *ataio, struct sbuf *sb)
263 {
264 	char res_str[(11 * 3) + 1];
265 
266 	sbuf_printf(sb, "RES: %s",
267 	    ata_res_string(&ataio->res, res_str, sizeof(res_str)));
268 
269 	return(0);
270 }
271 
272 void
273 ata_print_ident(struct ata_params *ident_data)
274 {
275 	char product[48], revision[16];
276 
277 	cam_strvis(product, ident_data->model, sizeof(ident_data->model),
278 		   sizeof(product));
279 	cam_strvis(revision, ident_data->revision, sizeof(ident_data->revision),
280 		   sizeof(revision));
281 	printf("<%s %s> %s-%d",
282 	    product, revision,
283 	    (ident_data->config == ATA_PROTO_CFA) ? "CFA" :
284 	    (ident_data->config & ATA_PROTO_ATAPI) ? "ATAPI" : "ATA",
285 	    ata_version(ident_data->version_major));
286 	if (ident_data->satacapabilities && ident_data->satacapabilities != 0xffff) {
287 		if (ident_data->satacapabilities & ATA_SATA_GEN3)
288 			printf(" SATA 3.x");
289 		else if (ident_data->satacapabilities & ATA_SATA_GEN2)
290 			printf(" SATA 2.x");
291 		else if (ident_data->satacapabilities & ATA_SATA_GEN1)
292 			printf(" SATA 1.x");
293 		else
294 			printf(" SATA");
295 	}
296 	printf(" device\n");
297 }
298 
299 void
300 semb_print_ident(struct sep_identify_data *ident_data)
301 {
302 	char vendor[9], product[17], revision[5], fw[5], in[7], ins[5];
303 
304 	cam_strvis(vendor, ident_data->vendor_id, 8, sizeof(vendor));
305 	cam_strvis(product, ident_data->product_id, 16, sizeof(product));
306 	cam_strvis(revision, ident_data->product_rev, 4, sizeof(revision));
307 	cam_strvis(fw, ident_data->firmware_rev, 4, sizeof(fw));
308 	cam_strvis(in, ident_data->interface_id, 6, sizeof(in));
309 	cam_strvis(ins, ident_data->interface_rev, 4, sizeof(ins));
310 	printf("<%s %s %s %s> SEMB %s %s device\n",
311 	    vendor, product, revision, fw, in, ins);
312 }
313 
314 uint32_t
315 ata_logical_sector_size(struct ata_params *ident_data)
316 {
317 	if ((ident_data->pss & 0xc000) == 0x4000 &&
318 	    (ident_data->pss & ATA_PSS_LSSABOVE512)) {
319 		return ((u_int32_t)ident_data->lss_1 |
320 		    ((u_int32_t)ident_data->lss_2 << 16));
321 	}
322 	return (512);
323 }
324 
325 uint64_t
326 ata_physical_sector_size(struct ata_params *ident_data)
327 {
328 	if ((ident_data->pss & 0xc000) == 0x4000 &&
329 	    (ident_data->pss & ATA_PSS_MULTLS)) {
330 		return ((uint64_t)ata_logical_sector_size(ident_data) *
331 		    (1 << (ident_data->pss & ATA_PSS_LSPPS)));
332 	}
333 	return (512);
334 }
335 
336 uint64_t
337 ata_logical_sector_offset(struct ata_params *ident_data)
338 {
339 	if ((ident_data->lsalign & 0xc000) == 0x4000) {
340 		return ((uint64_t)ata_logical_sector_size(ident_data) *
341 		    (ident_data->lsalign & 0x3fff));
342 	}
343 	return (0);
344 }
345 
346 void
347 ata_28bit_cmd(struct ccb_ataio *ataio, uint8_t cmd, uint8_t features,
348     uint32_t lba, uint8_t sector_count)
349 {
350 	bzero(&ataio->cmd, sizeof(ataio->cmd));
351 	ataio->cmd.flags = 0;
352 	if (cmd == ATA_READ_DMA ||
353 	    cmd == ATA_READ_DMA_QUEUED ||
354 	    cmd == ATA_WRITE_DMA ||
355 	    cmd == ATA_WRITE_DMA_QUEUED)
356 		ataio->cmd.flags |= CAM_ATAIO_DMA;
357 	ataio->cmd.command = cmd;
358 	ataio->cmd.features = features;
359 	ataio->cmd.lba_low = lba;
360 	ataio->cmd.lba_mid = lba >> 8;
361 	ataio->cmd.lba_high = lba >> 16;
362 	ataio->cmd.device = ATA_DEV_LBA | ((lba >> 24) & 0x0f);
363 	ataio->cmd.sector_count = sector_count;
364 }
365 
366 void
367 ata_48bit_cmd(struct ccb_ataio *ataio, uint8_t cmd, uint16_t features,
368     uint64_t lba, uint16_t sector_count)
369 {
370 
371 	ataio->cmd.flags = CAM_ATAIO_48BIT;
372 	if (cmd == ATA_READ_DMA48 ||
373 	    cmd == ATA_READ_DMA_QUEUED48 ||
374 	    cmd == ATA_READ_STREAM_DMA48 ||
375 	    cmd == ATA_WRITE_DMA48 ||
376 	    cmd == ATA_WRITE_DMA_FUA48 ||
377 	    cmd == ATA_WRITE_DMA_QUEUED48 ||
378 	    cmd == ATA_WRITE_DMA_QUEUED_FUA48 ||
379 	    cmd == ATA_WRITE_STREAM_DMA48 ||
380 	    cmd == ATA_DATA_SET_MANAGEMENT)
381 		ataio->cmd.flags |= CAM_ATAIO_DMA;
382 	ataio->cmd.command = cmd;
383 	ataio->cmd.features = features;
384 	ataio->cmd.lba_low = lba;
385 	ataio->cmd.lba_mid = lba >> 8;
386 	ataio->cmd.lba_high = lba >> 16;
387 	ataio->cmd.device = ATA_DEV_LBA;
388 	ataio->cmd.lba_low_exp = lba >> 24;
389 	ataio->cmd.lba_mid_exp = lba >> 32;
390 	ataio->cmd.lba_high_exp = lba >> 40;
391 	ataio->cmd.features_exp = features >> 8;
392 	ataio->cmd.sector_count = sector_count;
393 	ataio->cmd.sector_count_exp = sector_count >> 8;
394 	ataio->cmd.control = 0;
395 }
396 
397 void
398 ata_ncq_cmd(struct ccb_ataio *ataio, uint8_t cmd,
399     uint64_t lba, uint16_t sector_count)
400 {
401 
402 	ataio->cmd.flags = CAM_ATAIO_48BIT | CAM_ATAIO_FPDMA;
403 	ataio->cmd.command = cmd;
404 	ataio->cmd.features = sector_count;
405 	ataio->cmd.lba_low = lba;
406 	ataio->cmd.lba_mid = lba >> 8;
407 	ataio->cmd.lba_high = lba >> 16;
408 	ataio->cmd.device = ATA_DEV_LBA;
409 	ataio->cmd.lba_low_exp = lba >> 24;
410 	ataio->cmd.lba_mid_exp = lba >> 32;
411 	ataio->cmd.lba_high_exp = lba >> 40;
412 	ataio->cmd.features_exp = sector_count >> 8;
413 	ataio->cmd.sector_count = 0;
414 	ataio->cmd.sector_count_exp = 0;
415 	ataio->cmd.control = 0;
416 }
417 
418 void
419 ata_reset_cmd(struct ccb_ataio *ataio)
420 {
421 	bzero(&ataio->cmd, sizeof(ataio->cmd));
422 	ataio->cmd.flags = CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT;
423 	ataio->cmd.control = 0x04;
424 }
425 
426 void
427 ata_pm_read_cmd(struct ccb_ataio *ataio, int reg, int port)
428 {
429 	bzero(&ataio->cmd, sizeof(ataio->cmd));
430 	ataio->cmd.flags = CAM_ATAIO_NEEDRESULT;
431 	ataio->cmd.command = ATA_READ_PM;
432 	ataio->cmd.features = reg;
433 	ataio->cmd.device = port & 0x0f;
434 }
435 
436 void
437 ata_pm_write_cmd(struct ccb_ataio *ataio, int reg, int port, uint32_t val)
438 {
439 	bzero(&ataio->cmd, sizeof(ataio->cmd));
440 	ataio->cmd.flags = 0;
441 	ataio->cmd.command = ATA_WRITE_PM;
442 	ataio->cmd.features = reg;
443 	ataio->cmd.sector_count = val;
444 	ataio->cmd.lba_low = val >> 8;
445 	ataio->cmd.lba_mid = val >> 16;
446 	ataio->cmd.lba_high = val >> 24;
447 	ataio->cmd.device = port & 0x0f;
448 }
449 
450 void
451 ata_bswap(int8_t *buf, int len)
452 {
453 	u_int16_t *ptr = (u_int16_t*)(buf + len);
454 
455 	while (--ptr >= (u_int16_t*)buf)
456 		*ptr = be16toh(*ptr);
457 }
458 
459 void
460 ata_btrim(int8_t *buf, int len)
461 {
462 	int8_t *ptr;
463 
464 	for (ptr = buf; ptr < buf+len; ++ptr)
465 		if (!*ptr || *ptr == '_')
466 			*ptr = ' ';
467 	for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
468 		*ptr = 0;
469 }
470 
471 void
472 ata_bpack(int8_t *src, int8_t *dst, int len)
473 {
474 	int i, j, blank;
475 
476 	for (i = j = blank = 0 ; i < len; i++) {
477 		if (blank && src[i] == ' ') continue;
478 		if (blank && src[i] != ' ') {
479 			dst[j++] = src[i];
480 			blank = 0;
481 			continue;
482 		}
483 		if (src[i] == ' ') {
484 			blank = 1;
485 			if (i == 0)
486 			continue;
487 		}
488 		dst[j++] = src[i];
489 	}
490 	while (j < len)
491 		dst[j++] = 0x00;
492 }
493 
494 int
495 ata_max_pmode(struct ata_params *ap)
496 {
497     if (ap->atavalid & ATA_FLAG_64_70) {
498 	if (ap->apiomodes & 0x02)
499 	    return ATA_PIO4;
500 	if (ap->apiomodes & 0x01)
501 	    return ATA_PIO3;
502     }
503     if (ap->mwdmamodes & 0x04)
504 	return ATA_PIO4;
505     if (ap->mwdmamodes & 0x02)
506 	return ATA_PIO3;
507     if (ap->mwdmamodes & 0x01)
508 	return ATA_PIO2;
509     if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
510 	return ATA_PIO2;
511     if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
512 	return ATA_PIO1;
513     if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
514 	return ATA_PIO0;
515     return ATA_PIO0;
516 }
517 
518 int
519 ata_max_wmode(struct ata_params *ap)
520 {
521     if (ap->mwdmamodes & 0x04)
522 	return ATA_WDMA2;
523     if (ap->mwdmamodes & 0x02)
524 	return ATA_WDMA1;
525     if (ap->mwdmamodes & 0x01)
526 	return ATA_WDMA0;
527     return -1;
528 }
529 
530 int
531 ata_max_umode(struct ata_params *ap)
532 {
533     if (ap->atavalid & ATA_FLAG_88) {
534 	if (ap->udmamodes & 0x40)
535 	    return ATA_UDMA6;
536 	if (ap->udmamodes & 0x20)
537 	    return ATA_UDMA5;
538 	if (ap->udmamodes & 0x10)
539 	    return ATA_UDMA4;
540 	if (ap->udmamodes & 0x08)
541 	    return ATA_UDMA3;
542 	if (ap->udmamodes & 0x04)
543 	    return ATA_UDMA2;
544 	if (ap->udmamodes & 0x02)
545 	    return ATA_UDMA1;
546 	if (ap->udmamodes & 0x01)
547 	    return ATA_UDMA0;
548     }
549     return -1;
550 }
551 
552 int
553 ata_max_mode(struct ata_params *ap, int maxmode)
554 {
555 
556 	if (maxmode == 0)
557 		maxmode = ATA_DMA_MAX;
558 	if (maxmode >= ATA_UDMA0 && ata_max_umode(ap) > 0)
559 		return (min(maxmode, ata_max_umode(ap)));
560 	if (maxmode >= ATA_WDMA0 && ata_max_wmode(ap) > 0)
561 		return (min(maxmode, ata_max_wmode(ap)));
562 	return (min(maxmode, ata_max_pmode(ap)));
563 }
564 
565 char *
566 ata_mode2string(int mode)
567 {
568     switch (mode) {
569     case -1: return "UNSUPPORTED";
570     case 0: return "NONE";
571     case ATA_PIO0: return "PIO0";
572     case ATA_PIO1: return "PIO1";
573     case ATA_PIO2: return "PIO2";
574     case ATA_PIO3: return "PIO3";
575     case ATA_PIO4: return "PIO4";
576     case ATA_WDMA0: return "WDMA0";
577     case ATA_WDMA1: return "WDMA1";
578     case ATA_WDMA2: return "WDMA2";
579     case ATA_UDMA0: return "UDMA0";
580     case ATA_UDMA1: return "UDMA1";
581     case ATA_UDMA2: return "UDMA2";
582     case ATA_UDMA3: return "UDMA3";
583     case ATA_UDMA4: return "UDMA4";
584     case ATA_UDMA5: return "UDMA5";
585     case ATA_UDMA6: return "UDMA6";
586     default:
587 	if (mode & ATA_DMA_MASK)
588 	    return "BIOSDMA";
589 	else
590 	    return "BIOSPIO";
591     }
592 }
593 
594 int
595 ata_string2mode(char *str)
596 {
597 	if (!strcasecmp(str, "PIO0")) return (ATA_PIO0);
598 	if (!strcasecmp(str, "PIO1")) return (ATA_PIO1);
599 	if (!strcasecmp(str, "PIO2")) return (ATA_PIO2);
600 	if (!strcasecmp(str, "PIO3")) return (ATA_PIO3);
601 	if (!strcasecmp(str, "PIO4")) return (ATA_PIO4);
602 	if (!strcasecmp(str, "WDMA0")) return (ATA_WDMA0);
603 	if (!strcasecmp(str, "WDMA1")) return (ATA_WDMA1);
604 	if (!strcasecmp(str, "WDMA2")) return (ATA_WDMA2);
605 	if (!strcasecmp(str, "UDMA0")) return (ATA_UDMA0);
606 	if (!strcasecmp(str, "UDMA16")) return (ATA_UDMA0);
607 	if (!strcasecmp(str, "UDMA1")) return (ATA_UDMA1);
608 	if (!strcasecmp(str, "UDMA25")) return (ATA_UDMA1);
609 	if (!strcasecmp(str, "UDMA2")) return (ATA_UDMA2);
610 	if (!strcasecmp(str, "UDMA33")) return (ATA_UDMA2);
611 	if (!strcasecmp(str, "UDMA3")) return (ATA_UDMA3);
612 	if (!strcasecmp(str, "UDMA44")) return (ATA_UDMA3);
613 	if (!strcasecmp(str, "UDMA4")) return (ATA_UDMA4);
614 	if (!strcasecmp(str, "UDMA66")) return (ATA_UDMA4);
615 	if (!strcasecmp(str, "UDMA5")) return (ATA_UDMA5);
616 	if (!strcasecmp(str, "UDMA100")) return (ATA_UDMA5);
617 	if (!strcasecmp(str, "UDMA6")) return (ATA_UDMA6);
618 	if (!strcasecmp(str, "UDMA133")) return (ATA_UDMA6);
619 	return (-1);
620 }
621 
622 
623 u_int
624 ata_mode2speed(int mode)
625 {
626 	switch (mode) {
627 	case ATA_PIO0:
628 	default:
629 		return (3300);
630 	case ATA_PIO1:
631 		return (5200);
632 	case ATA_PIO2:
633 		return (8300);
634 	case ATA_PIO3:
635 		return (11100);
636 	case ATA_PIO4:
637 		return (16700);
638 	case ATA_WDMA0:
639 		return (4200);
640 	case ATA_WDMA1:
641 		return (13300);
642 	case ATA_WDMA2:
643 		return (16700);
644 	case ATA_UDMA0:
645 		return (16700);
646 	case ATA_UDMA1:
647 		return (25000);
648 	case ATA_UDMA2:
649 		return (33300);
650 	case ATA_UDMA3:
651 		return (44400);
652 	case ATA_UDMA4:
653 		return (66700);
654 	case ATA_UDMA5:
655 		return (100000);
656 	case ATA_UDMA6:
657 		return (133000);
658 	}
659 }
660 
661 u_int
662 ata_revision2speed(int revision)
663 {
664 	switch (revision) {
665 	case 1:
666 	default:
667 		return (150000);
668 	case 2:
669 		return (300000);
670 	case 3:
671 		return (600000);
672 	}
673 }
674 
675 int
676 ata_speed2revision(u_int speed)
677 {
678 	switch (speed) {
679 	case 0:
680 		return (0);
681 	case 150000:
682 		return (1);
683 	case 300000:
684 		return (2);
685 	case 600000:
686 		return (3);
687 	default:
688 		return (-1);
689 	}
690 }
691 
692 int
693 ata_identify_match(caddr_t identbuffer, caddr_t table_entry)
694 {
695 	struct scsi_inquiry_pattern *entry;
696 	struct ata_params *ident;
697 
698 	entry = (struct scsi_inquiry_pattern *)table_entry;
699 	ident = (struct ata_params *)identbuffer;
700 
701 	if ((cam_strmatch(ident->model, entry->product,
702 			  sizeof(ident->model)) == 0)
703 	 && (cam_strmatch(ident->revision, entry->revision,
704 			  sizeof(ident->revision)) == 0)) {
705 		return (0);
706 	}
707         return (-1);
708 }
709 
710 int
711 ata_static_identify_match(caddr_t identbuffer, caddr_t table_entry)
712 {
713 	struct scsi_static_inquiry_pattern *entry;
714 	struct ata_params *ident;
715 
716 	entry = (struct scsi_static_inquiry_pattern *)table_entry;
717 	ident = (struct ata_params *)identbuffer;
718 
719 	if ((cam_strmatch(ident->model, entry->product,
720 			  sizeof(ident->model)) == 0)
721 	 && (cam_strmatch(ident->revision, entry->revision,
722 			  sizeof(ident->revision)) == 0)) {
723 		return (0);
724 	}
725         return (-1);
726 }
727 
728 void
729 semb_receive_diagnostic_results(struct ccb_ataio *ataio,
730     u_int32_t retries, void (*cbfcnp)(struct cam_periph *, union ccb*),
731     uint8_t tag_action, int pcv, uint8_t page_code,
732     uint8_t *data_ptr, uint16_t length, uint32_t timeout)
733 {
734 
735 	length = min(length, 1020);
736 	length = (length + 3) & ~3;
737 	cam_fill_ataio(ataio,
738 		      retries,
739 		      cbfcnp,
740 		      /*flags*/CAM_DIR_IN,
741 		      tag_action,
742 		      data_ptr,
743 		      length,
744 		      timeout);
745 	ata_28bit_cmd(ataio, ATA_SEP_ATTN,
746 	    pcv ? page_code : 0, 0x02, length / 4);
747 }
748 
749 void
750 semb_send_diagnostic(struct ccb_ataio *ataio,
751     u_int32_t retries, void (*cbfcnp)(struct cam_periph *, union ccb *),
752     uint8_t tag_action, uint8_t *data_ptr, uint16_t length, uint32_t timeout)
753 {
754 
755 	length = min(length, 1020);
756 	length = (length + 3) & ~3;
757 	cam_fill_ataio(ataio,
758 		      retries,
759 		      cbfcnp,
760 		      /*flags*/length ? CAM_DIR_OUT : CAM_DIR_NONE,
761 		      tag_action,
762 		      data_ptr,
763 		      length,
764 		      timeout);
765 	ata_28bit_cmd(ataio, ATA_SEP_ATTN,
766 	    length > 0 ? data_ptr[0] : 0, 0x82, length / 4);
767 }
768 
769 void
770 semb_read_buffer(struct ccb_ataio *ataio,
771     u_int32_t retries, void (*cbfcnp)(struct cam_periph *, union ccb*),
772     uint8_t tag_action, uint8_t page_code,
773     uint8_t *data_ptr, uint16_t length, uint32_t timeout)
774 {
775 
776 	length = min(length, 1020);
777 	length = (length + 3) & ~3;
778 	cam_fill_ataio(ataio,
779 		      retries,
780 		      cbfcnp,
781 		      /*flags*/CAM_DIR_IN,
782 		      tag_action,
783 		      data_ptr,
784 		      length,
785 		      timeout);
786 	ata_28bit_cmd(ataio, ATA_SEP_ATTN,
787 	    page_code, 0x00, length / 4);
788 }
789 
790 void
791 semb_write_buffer(struct ccb_ataio *ataio,
792     u_int32_t retries, void (*cbfcnp)(struct cam_periph *, union ccb *),
793     uint8_t tag_action, uint8_t *data_ptr, uint16_t length, uint32_t timeout)
794 {
795 
796 	length = min(length, 1020);
797 	length = (length + 3) & ~3;
798 	cam_fill_ataio(ataio,
799 		      retries,
800 		      cbfcnp,
801 		      /*flags*/length ? CAM_DIR_OUT : CAM_DIR_NONE,
802 		      tag_action,
803 		      data_ptr,
804 		      length,
805 		      timeout);
806 	ata_28bit_cmd(ataio, ATA_SEP_ATTN,
807 	    length > 0 ? data_ptr[0] : 0, 0x80, length / 4);
808 }
809 
810