ata_all.c revision 223019
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: head/sys/cam/ata/ata_all.c 223019 2011-06-12 18:52:39Z mav $");
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
58int
59ata_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
71char *
72ata_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
172char *
173ata_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
186char *
187ata_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 */
203int
204ata_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 */
218int
219ata_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 */
251int
252ata_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
262void
263ata_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
289uint32_t
290ata_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
300uint64_t
301ata_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
311uint64_t
312ata_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
321void
322ata_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
341void
342ata_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
371void
372ata_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
389void
390ata_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
397void
398ata_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
407void
408ata_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
421void
422ata_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
430void
431ata_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
442void
443ata_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
465int
466ata_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
489int
490ata_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
501int
502ata_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
523int
524ata_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
536char *
537ata_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
565int
566ata_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
594u_int
595ata_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
632u_int
633ata_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
646int
647ata_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
663int
664ata_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
681int
682ata_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