xref: /freebsd/sys/cam/ata/ata_all.c (revision 70e0bbedef95258a4dadc996d641a9bebd3f107d)
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 0x70: return ("SEEK");
112 	case 0x87: return ("CFA_TRANSLATE_SECTOR");
113 	case 0x90: return ("EXECUTE_DEVICE_DIAGNOSTIC");
114 	case 0x92: return ("DOWNLOAD_MICROCODE");
115 	case 0xa0: return ("PACKET");
116 	case 0xa1: return ("ATAPI_IDENTIFY");
117 	case 0xa2: return ("SERVICE");
118 	case 0xb0: return ("SMART");
119 	case 0xb1: return ("DEVICE CONFIGURATION");
120 	case 0xc0: return ("CFA_ERASE");
121 	case 0xc4: return ("READ_MUL");
122 	case 0xc5: return ("WRITE_MUL");
123 	case 0xc6: return ("SET_MULTI");
124 	case 0xc7: return ("READ_DMA_QUEUED");
125 	case 0xc8: return ("READ_DMA");
126 	case 0xca: return ("WRITE_DMA");
127 	case 0xcc: return ("WRITE_DMA_QUEUED");
128 	case 0xcd: return ("CFA_WRITE_MULTIPLE_WITHOUT_ERASE");
129 	case 0xce: return ("WRITE_MUL_FUA48");
130 	case 0xd1: return ("CHECK_MEDIA_CARD_TYPE");
131 	case 0xda: return ("GET_MEDIA_STATUS");
132 	case 0xde: return ("MEDIA_LOCK");
133 	case 0xdf: return ("MEDIA_UNLOCK");
134 	case 0xe0: return ("STANDBY_IMMEDIATE");
135 	case 0xe1: return ("IDLE_IMMEDIATE");
136 	case 0xe2: return ("STANDBY");
137 	case 0xe3: return ("IDLE");
138 	case 0xe4: return ("READ_BUFFER/PM");
139 	case 0xe5: return ("CHECK_POWER_MODE");
140 	case 0xe6: return ("SLEEP");
141 	case 0xe7: return ("FLUSHCACHE");
142 	case 0xe8: return ("WRITE_PM");
143 	case 0xea: return ("FLUSHCACHE48");
144 	case 0xec: return ("ATA_IDENTIFY");
145 	case 0xed: return ("MEDIA_EJECT");
146 	case 0xef:
147 		switch (cmd->features) {
148 	        case 0x03: return ("SETFEATURES SET TRANSFER MODE");
149 	        case 0x02: return ("SETFEATURES ENABLE WCACHE");
150 	        case 0x82: return ("SETFEATURES DISABLE WCACHE");
151 	        case 0x06: return ("SETFEATURES ENABLE PUIS");
152 	        case 0x86: return ("SETFEATURES DISABLE PUIS");
153 	        case 0x07: return ("SETFEATURES SPIN-UP");
154 	        case 0x10: return ("SETFEATURES ENABLE SATA FEATURE");
155 	        case 0x90: return ("SETFEATURES DISABLE SATA FEATURE");
156 	        case 0xaa: return ("SETFEATURES ENABLE RCACHE");
157 	        case 0x55: return ("SETFEATURES DISABLE RCACHE");
158 	        }
159 	        return "SETFEATURES";
160 	case 0xf1: return ("SECURITY_SET_PASSWORD");
161 	case 0xf2: return ("SECURITY_UNLOCK");
162 	case 0xf3: return ("SECURITY_ERASE_PREPARE");
163 	case 0xf4: return ("SECURITY_ERASE_UNIT");
164 	case 0xf5: return ("SECURITY_FREE_LOCK");
165 	case 0xf6: return ("SECURITY DISABLE PASSWORD");
166 	case 0xf8: return ("READ_NATIVE_MAX_ADDRESS");
167 	case 0xf9: return ("SET_MAX_ADDRESS");
168 	}
169 	return "UNKNOWN";
170 }
171 
172 char *
173 ata_cmd_string(struct ata_cmd *cmd, char *cmd_string, size_t len)
174 {
175 
176 	snprintf(cmd_string, len, "%02x %02x %02x %02x "
177 	    "%02x %02x %02x %02x %02x %02x %02x %02x",
178 	    cmd->command, cmd->features,
179 	    cmd->lba_low, cmd->lba_mid, cmd->lba_high, cmd->device,
180 	    cmd->lba_low_exp, cmd->lba_mid_exp, cmd->lba_high_exp,
181 	    cmd->features_exp, cmd->sector_count, cmd->sector_count_exp);
182 
183 	return(cmd_string);
184 }
185 
186 char *
187 ata_res_string(struct ata_res *res, char *res_string, size_t len)
188 {
189 
190 	snprintf(res_string, len, "%02x %02x %02x %02x "
191 	    "%02x %02x %02x %02x %02x %02x %02x",
192 	    res->status, res->error,
193 	    res->lba_low, res->lba_mid, res->lba_high, res->device,
194 	    res->lba_low_exp, res->lba_mid_exp, res->lba_high_exp,
195 	    res->sector_count, res->sector_count_exp);
196 
197 	return(res_string);
198 }
199 
200 /*
201  * ata_command_sbuf() returns 0 for success and -1 for failure.
202  */
203 int
204 ata_command_sbuf(struct ccb_ataio *ataio, struct sbuf *sb)
205 {
206 	char cmd_str[(12 * 3) + 1];
207 
208 	sbuf_printf(sb, "%s. ACB: %s",
209 	    ata_op_string(&ataio->cmd),
210 	    ata_cmd_string(&ataio->cmd, cmd_str, sizeof(cmd_str)));
211 
212 	return(0);
213 }
214 
215 /*
216  * ata_status_abuf() returns 0 for success and -1 for failure.
217  */
218 int
219 ata_status_sbuf(struct ccb_ataio *ataio, struct sbuf *sb)
220 {
221 
222 	sbuf_printf(sb, "ATA status: %02x (%s%s%s%s%s%s%s%s)",
223 	    ataio->res.status,
224 	    (ataio->res.status & 0x80) ? "BSY " : "",
225 	    (ataio->res.status & 0x40) ? "DRDY " : "",
226 	    (ataio->res.status & 0x20) ? "DF " : "",
227 	    (ataio->res.status & 0x10) ? "SERV " : "",
228 	    (ataio->res.status & 0x08) ? "DRQ " : "",
229 	    (ataio->res.status & 0x04) ? "CORR " : "",
230 	    (ataio->res.status & 0x02) ? "IDX " : "",
231 	    (ataio->res.status & 0x01) ? "ERR" : "");
232 	if (ataio->res.status & 1) {
233 	    sbuf_printf(sb, ", error: %02x (%s%s%s%s%s%s%s%s)",
234 		ataio->res.error,
235 		(ataio->res.error & 0x80) ? "ICRC " : "",
236 		(ataio->res.error & 0x40) ? "UNC " : "",
237 		(ataio->res.error & 0x20) ? "MC " : "",
238 		(ataio->res.error & 0x10) ? "IDNF " : "",
239 		(ataio->res.error & 0x08) ? "MCR " : "",
240 		(ataio->res.error & 0x04) ? "ABRT " : "",
241 		(ataio->res.error & 0x02) ? "NM " : "",
242 		(ataio->res.error & 0x01) ? "ILI" : "");
243 	}
244 
245 	return(0);
246 }
247 
248 /*
249  * ata_res_sbuf() returns 0 for success and -1 for failure.
250  */
251 int
252 ata_res_sbuf(struct ccb_ataio *ataio, struct sbuf *sb)
253 {
254 	char res_str[(11 * 3) + 1];
255 
256 	sbuf_printf(sb, "RES: %s",
257 	    ata_res_string(&ataio->res, res_str, sizeof(res_str)));
258 
259 	return(0);
260 }
261 
262 void
263 ata_print_ident(struct ata_params *ident_data)
264 {
265 	char product[48], revision[16];
266 
267 	cam_strvis(product, ident_data->model, sizeof(ident_data->model),
268 		   sizeof(product));
269 	cam_strvis(revision, ident_data->revision, sizeof(ident_data->revision),
270 		   sizeof(revision));
271 	printf("<%s %s> %s-%d",
272 	    product, revision,
273 	    (ident_data->config == ATA_PROTO_CFA) ? "CFA" :
274 	    (ident_data->config & ATA_PROTO_ATAPI) ? "ATAPI" : "ATA",
275 	    ata_version(ident_data->version_major));
276 	if (ident_data->satacapabilities && ident_data->satacapabilities != 0xffff) {
277 		if (ident_data->satacapabilities & ATA_SATA_GEN3)
278 			printf(" SATA 3.x");
279 		else if (ident_data->satacapabilities & ATA_SATA_GEN2)
280 			printf(" SATA 2.x");
281 		else if (ident_data->satacapabilities & ATA_SATA_GEN1)
282 			printf(" SATA 1.x");
283 		else
284 			printf(" SATA");
285 	}
286 	printf(" device\n");
287 }
288 
289 uint32_t
290 ata_logical_sector_size(struct ata_params *ident_data)
291 {
292 	if ((ident_data->pss & 0xc000) == 0x4000 &&
293 	    (ident_data->pss & ATA_PSS_LSSABOVE512)) {
294 		return ((u_int32_t)ident_data->lss_1 |
295 		    ((u_int32_t)ident_data->lss_2 << 16));
296 	}
297 	return (512);
298 }
299 
300 uint64_t
301 ata_physical_sector_size(struct ata_params *ident_data)
302 {
303 	if ((ident_data->pss & 0xc000) == 0x4000 &&
304 	    (ident_data->pss & ATA_PSS_MULTLS)) {
305 		return ((uint64_t)ata_logical_sector_size(ident_data) *
306 		    (1 << (ident_data->pss & ATA_PSS_LSPPS)));
307 	}
308 	return (512);
309 }
310 
311 uint64_t
312 ata_logical_sector_offset(struct ata_params *ident_data)
313 {
314 	if ((ident_data->lsalign & 0xc000) == 0x4000) {
315 		return ((uint64_t)ata_logical_sector_size(ident_data) *
316 		    (ident_data->lsalign & 0x3fff));
317 	}
318 	return (0);
319 }
320 
321 void
322 ata_28bit_cmd(struct ccb_ataio *ataio, uint8_t cmd, uint8_t features,
323     uint32_t lba, uint8_t sector_count)
324 {
325 	bzero(&ataio->cmd, sizeof(ataio->cmd));
326 	ataio->cmd.flags = 0;
327 	if (cmd == ATA_READ_DMA ||
328 	    cmd == ATA_READ_DMA_QUEUED ||
329 	    cmd == ATA_WRITE_DMA ||
330 	    cmd == ATA_WRITE_DMA_QUEUED)
331 		ataio->cmd.flags |= CAM_ATAIO_DMA;
332 	ataio->cmd.command = cmd;
333 	ataio->cmd.features = features;
334 	ataio->cmd.lba_low = lba;
335 	ataio->cmd.lba_mid = lba >> 8;
336 	ataio->cmd.lba_high = lba >> 16;
337 	ataio->cmd.device = 0x40 | ((lba >> 24) & 0x0f);
338 	ataio->cmd.sector_count = sector_count;
339 }
340 
341 void
342 ata_48bit_cmd(struct ccb_ataio *ataio, uint8_t cmd, uint16_t features,
343     uint64_t lba, uint16_t sector_count)
344 {
345 	bzero(&ataio->cmd, sizeof(ataio->cmd));
346 	ataio->cmd.flags = CAM_ATAIO_48BIT;
347 	if (cmd == ATA_READ_DMA48 ||
348 	    cmd == ATA_READ_DMA_QUEUED48 ||
349 	    cmd == ATA_READ_STREAM_DMA48 ||
350 	    cmd == ATA_WRITE_DMA48 ||
351 	    cmd == ATA_WRITE_DMA_FUA48 ||
352 	    cmd == ATA_WRITE_DMA_QUEUED48 ||
353 	    cmd == ATA_WRITE_DMA_QUEUED_FUA48 ||
354 	    cmd == ATA_WRITE_STREAM_DMA48 ||
355 	    cmd == ATA_DATA_SET_MANAGEMENT)
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 = 0x40;
363 	ataio->cmd.lba_low_exp = lba >> 24;
364 	ataio->cmd.lba_mid_exp = lba >> 32;
365 	ataio->cmd.lba_high_exp = lba >> 40;
366 	ataio->cmd.features_exp = features >> 8;
367 	ataio->cmd.sector_count = sector_count;
368 	ataio->cmd.sector_count_exp = sector_count >> 8;
369 }
370 
371 void
372 ata_ncq_cmd(struct ccb_ataio *ataio, uint8_t cmd,
373     uint64_t lba, uint16_t sector_count)
374 {
375 	bzero(&ataio->cmd, sizeof(ataio->cmd));
376 	ataio->cmd.flags = CAM_ATAIO_48BIT | CAM_ATAIO_FPDMA;
377 	ataio->cmd.command = cmd;
378 	ataio->cmd.features = sector_count;
379 	ataio->cmd.lba_low = lba;
380 	ataio->cmd.lba_mid = lba >> 8;
381 	ataio->cmd.lba_high = lba >> 16;
382 	ataio->cmd.device = 0x40;
383 	ataio->cmd.lba_low_exp = lba >> 24;
384 	ataio->cmd.lba_mid_exp = lba >> 32;
385 	ataio->cmd.lba_high_exp = lba >> 40;
386 	ataio->cmd.features_exp = sector_count >> 8;
387 }
388 
389 void
390 ata_reset_cmd(struct ccb_ataio *ataio)
391 {
392 	bzero(&ataio->cmd, sizeof(ataio->cmd));
393 	ataio->cmd.flags = CAM_ATAIO_CONTROL | CAM_ATAIO_NEEDRESULT;
394 	ataio->cmd.control = 0x04;
395 }
396 
397 void
398 ata_pm_read_cmd(struct ccb_ataio *ataio, int reg, int port)
399 {
400 	bzero(&ataio->cmd, sizeof(ataio->cmd));
401 	ataio->cmd.flags = CAM_ATAIO_NEEDRESULT;
402 	ataio->cmd.command = ATA_READ_PM;
403 	ataio->cmd.features = reg;
404 	ataio->cmd.device = port & 0x0f;
405 }
406 
407 void
408 ata_pm_write_cmd(struct ccb_ataio *ataio, int reg, int port, uint32_t val)
409 {
410 	bzero(&ataio->cmd, sizeof(ataio->cmd));
411 	ataio->cmd.flags = 0;
412 	ataio->cmd.command = ATA_WRITE_PM;
413 	ataio->cmd.features = reg;
414 	ataio->cmd.sector_count = val;
415 	ataio->cmd.lba_low = val >> 8;
416 	ataio->cmd.lba_mid = val >> 16;
417 	ataio->cmd.lba_high = val >> 24;
418 	ataio->cmd.device = port & 0x0f;
419 }
420 
421 void
422 ata_bswap(int8_t *buf, int len)
423 {
424 	u_int16_t *ptr = (u_int16_t*)(buf + len);
425 
426 	while (--ptr >= (u_int16_t*)buf)
427 		*ptr = be16toh(*ptr);
428 }
429 
430 void
431 ata_btrim(int8_t *buf, int len)
432 {
433 	int8_t *ptr;
434 
435 	for (ptr = buf; ptr < buf+len; ++ptr)
436 		if (!*ptr || *ptr == '_')
437 			*ptr = ' ';
438 	for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
439 		*ptr = 0;
440 }
441 
442 void
443 ata_bpack(int8_t *src, int8_t *dst, int len)
444 {
445 	int i, j, blank;
446 
447 	for (i = j = blank = 0 ; i < len; i++) {
448 		if (blank && src[i] == ' ') continue;
449 		if (blank && src[i] != ' ') {
450 			dst[j++] = src[i];
451 			blank = 0;
452 			continue;
453 		}
454 		if (src[i] == ' ') {
455 			blank = 1;
456 			if (i == 0)
457 			continue;
458 		}
459 		dst[j++] = src[i];
460 	}
461 	while (j < len)
462 		dst[j++] = 0x00;
463 }
464 
465 int
466 ata_max_pmode(struct ata_params *ap)
467 {
468     if (ap->atavalid & ATA_FLAG_64_70) {
469 	if (ap->apiomodes & 0x02)
470 	    return ATA_PIO4;
471 	if (ap->apiomodes & 0x01)
472 	    return ATA_PIO3;
473     }
474     if (ap->mwdmamodes & 0x04)
475 	return ATA_PIO4;
476     if (ap->mwdmamodes & 0x02)
477 	return ATA_PIO3;
478     if (ap->mwdmamodes & 0x01)
479 	return ATA_PIO2;
480     if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
481 	return ATA_PIO2;
482     if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
483 	return ATA_PIO1;
484     if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
485 	return ATA_PIO0;
486     return ATA_PIO0;
487 }
488 
489 int
490 ata_max_wmode(struct ata_params *ap)
491 {
492     if (ap->mwdmamodes & 0x04)
493 	return ATA_WDMA2;
494     if (ap->mwdmamodes & 0x02)
495 	return ATA_WDMA1;
496     if (ap->mwdmamodes & 0x01)
497 	return ATA_WDMA0;
498     return -1;
499 }
500 
501 int
502 ata_max_umode(struct ata_params *ap)
503 {
504     if (ap->atavalid & ATA_FLAG_88) {
505 	if (ap->udmamodes & 0x40)
506 	    return ATA_UDMA6;
507 	if (ap->udmamodes & 0x20)
508 	    return ATA_UDMA5;
509 	if (ap->udmamodes & 0x10)
510 	    return ATA_UDMA4;
511 	if (ap->udmamodes & 0x08)
512 	    return ATA_UDMA3;
513 	if (ap->udmamodes & 0x04)
514 	    return ATA_UDMA2;
515 	if (ap->udmamodes & 0x02)
516 	    return ATA_UDMA1;
517 	if (ap->udmamodes & 0x01)
518 	    return ATA_UDMA0;
519     }
520     return -1;
521 }
522 
523 int
524 ata_max_mode(struct ata_params *ap, int maxmode)
525 {
526 
527 	if (maxmode == 0)
528 		maxmode = ATA_DMA_MAX;
529 	if (maxmode >= ATA_UDMA0 && ata_max_umode(ap) > 0)
530 		return (min(maxmode, ata_max_umode(ap)));
531 	if (maxmode >= ATA_WDMA0 && ata_max_wmode(ap) > 0)
532 		return (min(maxmode, ata_max_wmode(ap)));
533 	return (min(maxmode, ata_max_pmode(ap)));
534 }
535 
536 char *
537 ata_mode2string(int mode)
538 {
539     switch (mode) {
540     case -1: return "UNSUPPORTED";
541     case 0: return "NONE";
542     case ATA_PIO0: return "PIO0";
543     case ATA_PIO1: return "PIO1";
544     case ATA_PIO2: return "PIO2";
545     case ATA_PIO3: return "PIO3";
546     case ATA_PIO4: return "PIO4";
547     case ATA_WDMA0: return "WDMA0";
548     case ATA_WDMA1: return "WDMA1";
549     case ATA_WDMA2: return "WDMA2";
550     case ATA_UDMA0: return "UDMA0";
551     case ATA_UDMA1: return "UDMA1";
552     case ATA_UDMA2: return "UDMA2";
553     case ATA_UDMA3: return "UDMA3";
554     case ATA_UDMA4: return "UDMA4";
555     case ATA_UDMA5: return "UDMA5";
556     case ATA_UDMA6: return "UDMA6";
557     default:
558 	if (mode & ATA_DMA_MASK)
559 	    return "BIOSDMA";
560 	else
561 	    return "BIOSPIO";
562     }
563 }
564 
565 int
566 ata_string2mode(char *str)
567 {
568 	if (!strcasecmp(str, "PIO0")) return (ATA_PIO0);
569 	if (!strcasecmp(str, "PIO1")) return (ATA_PIO1);
570 	if (!strcasecmp(str, "PIO2")) return (ATA_PIO2);
571 	if (!strcasecmp(str, "PIO3")) return (ATA_PIO3);
572 	if (!strcasecmp(str, "PIO4")) return (ATA_PIO4);
573 	if (!strcasecmp(str, "WDMA0")) return (ATA_WDMA0);
574 	if (!strcasecmp(str, "WDMA1")) return (ATA_WDMA1);
575 	if (!strcasecmp(str, "WDMA2")) return (ATA_WDMA2);
576 	if (!strcasecmp(str, "UDMA0")) return (ATA_UDMA0);
577 	if (!strcasecmp(str, "UDMA16")) return (ATA_UDMA0);
578 	if (!strcasecmp(str, "UDMA1")) return (ATA_UDMA1);
579 	if (!strcasecmp(str, "UDMA25")) return (ATA_UDMA1);
580 	if (!strcasecmp(str, "UDMA2")) return (ATA_UDMA2);
581 	if (!strcasecmp(str, "UDMA33")) return (ATA_UDMA2);
582 	if (!strcasecmp(str, "UDMA3")) return (ATA_UDMA3);
583 	if (!strcasecmp(str, "UDMA44")) return (ATA_UDMA3);
584 	if (!strcasecmp(str, "UDMA4")) return (ATA_UDMA4);
585 	if (!strcasecmp(str, "UDMA66")) return (ATA_UDMA4);
586 	if (!strcasecmp(str, "UDMA5")) return (ATA_UDMA5);
587 	if (!strcasecmp(str, "UDMA100")) return (ATA_UDMA5);
588 	if (!strcasecmp(str, "UDMA6")) return (ATA_UDMA6);
589 	if (!strcasecmp(str, "UDMA133")) return (ATA_UDMA6);
590 	return (-1);
591 }
592 
593 
594 u_int
595 ata_mode2speed(int mode)
596 {
597 	switch (mode) {
598 	case ATA_PIO0:
599 	default:
600 		return (3300);
601 	case ATA_PIO1:
602 		return (5200);
603 	case ATA_PIO2:
604 		return (8300);
605 	case ATA_PIO3:
606 		return (11100);
607 	case ATA_PIO4:
608 		return (16700);
609 	case ATA_WDMA0:
610 		return (4200);
611 	case ATA_WDMA1:
612 		return (13300);
613 	case ATA_WDMA2:
614 		return (16700);
615 	case ATA_UDMA0:
616 		return (16700);
617 	case ATA_UDMA1:
618 		return (25000);
619 	case ATA_UDMA2:
620 		return (33300);
621 	case ATA_UDMA3:
622 		return (44400);
623 	case ATA_UDMA4:
624 		return (66700);
625 	case ATA_UDMA5:
626 		return (100000);
627 	case ATA_UDMA6:
628 		return (133000);
629 	}
630 }
631 
632 u_int
633 ata_revision2speed(int revision)
634 {
635 	switch (revision) {
636 	case 1:
637 	default:
638 		return (150000);
639 	case 2:
640 		return (300000);
641 	case 3:
642 		return (600000);
643 	}
644 }
645 
646 int
647 ata_speed2revision(u_int speed)
648 {
649 	switch (speed) {
650 	case 0:
651 		return (0);
652 	case 150000:
653 		return (1);
654 	case 300000:
655 		return (2);
656 	case 600000:
657 		return (3);
658 	default:
659 		return (-1);
660 	}
661 }
662 
663 int
664 ata_identify_match(caddr_t identbuffer, caddr_t table_entry)
665 {
666 	struct scsi_inquiry_pattern *entry;
667 	struct ata_params *ident;
668 
669 	entry = (struct scsi_inquiry_pattern *)table_entry;
670 	ident = (struct ata_params *)identbuffer;
671 
672 	if ((cam_strmatch(ident->model, entry->product,
673 			  sizeof(ident->model)) == 0)
674 	 && (cam_strmatch(ident->revision, entry->revision,
675 			  sizeof(ident->revision)) == 0)) {
676 		return (0);
677 	}
678         return (-1);
679 }
680 
681 int
682 ata_static_identify_match(caddr_t identbuffer, caddr_t table_entry)
683 {
684 	struct scsi_static_inquiry_pattern *entry;
685 	struct ata_params *ident;
686 
687 	entry = (struct scsi_static_inquiry_pattern *)table_entry;
688 	ident = (struct ata_params *)identbuffer;
689 
690 	if ((cam_strmatch(ident->model, entry->product,
691 			  sizeof(ident->model)) == 0)
692 	 && (cam_strmatch(ident->revision, entry->revision,
693 			  sizeof(ident->revision)) == 0)) {
694 		return (0);
695 	}
696         return (-1);
697 }
698