xref: /freebsd/sys/dev/ata/ata-all.c (revision 23541160bb3e58f5deb04a299eda60fc80b731bc)
1 /*-
2  * Copyright (c) 1998 - 2008 Søren Schmidt <sos@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 #include <sys/systm.h>
32 #include <sys/ata.h>
33 #include <sys/kernel.h>
34 #include <sys/module.h>
35 #include <sys/endian.h>
36 #include <sys/ctype.h>
37 #include <sys/conf.h>
38 #include <sys/bus.h>
39 #include <sys/bio.h>
40 #include <sys/malloc.h>
41 #include <sys/sysctl.h>
42 #include <sys/sema.h>
43 #include <sys/taskqueue.h>
44 #include <vm/uma.h>
45 #include <machine/stdarg.h>
46 #include <machine/resource.h>
47 #include <machine/bus.h>
48 #include <sys/rman.h>
49 #include <dev/ata/ata-all.h>
50 #include <dev/pci/pcivar.h>
51 #include <ata_if.h>
52 
53 #include <cam/cam.h>
54 #include <cam/cam_ccb.h>
55 #include <cam/cam_sim.h>
56 #include <cam/cam_xpt_sim.h>
57 #include <cam/cam_debug.h>
58 
59 /* prototypes */
60 static void ataaction(struct cam_sim *sim, union ccb *ccb);
61 static void atapoll(struct cam_sim *sim);
62 static void ata_cam_begin_transaction(device_t dev, union ccb *ccb);
63 static void ata_cam_end_transaction(device_t dev, struct ata_request *request);
64 static void ata_cam_request_sense(device_t dev, struct ata_request *request);
65 static int ata_check_ids(device_t dev, union ccb *ccb);
66 static void ata_conn_event(void *context, int dummy);
67 static void ata_interrupt_locked(void *data);
68 static int ata_module_event_handler(module_t mod, int what, void *arg);
69 static void ata_periodic_poll(void *data);
70 static int ata_str2mode(const char *str);
71 
72 /* global vars */
73 MALLOC_DEFINE(M_ATA, "ata_generic", "ATA driver generic layer");
74 int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL;
75 devclass_t ata_devclass;
76 int ata_dma_check_80pin = 1;
77 
78 /* sysctl vars */
79 static SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
80 SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma_check_80pin,
81 	   CTLFLAG_RWTUN, &ata_dma_check_80pin, 0,
82 	   "Check for 80pin cable before setting ATA DMA mode");
83 FEATURE(ata_cam, "ATA devices are accessed through the cam(4) driver");
84 
85 /*
86  * newbus device interface related functions
87  */
88 int
89 ata_probe(device_t dev)
90 {
91     return (BUS_PROBE_LOW_PRIORITY);
92 }
93 
94 int
95 ata_attach(device_t dev)
96 {
97     struct ata_channel *ch = device_get_softc(dev);
98     int error, rid;
99     struct cam_devq *devq;
100     const char *res;
101     char buf[64];
102     int i, mode;
103 
104     /* check that we have a virgin channel to attach */
105     if (ch->r_irq)
106 	return EEXIST;
107 
108     /* initialize the softc basics */
109     ch->dev = dev;
110     ch->state = ATA_IDLE;
111     bzero(&ch->state_mtx, sizeof(struct mtx));
112     mtx_init(&ch->state_mtx, "ATA state lock", NULL, MTX_DEF);
113     TASK_INIT(&ch->conntask, 0, ata_conn_event, dev);
114 	for (i = 0; i < 16; i++) {
115 		ch->user[i].revision = 0;
116 		snprintf(buf, sizeof(buf), "dev%d.sata_rev", i);
117 		if (resource_int_value(device_get_name(dev),
118 		    device_get_unit(dev), buf, &mode) != 0 &&
119 		    resource_int_value(device_get_name(dev),
120 		    device_get_unit(dev), "sata_rev", &mode) != 0)
121 			mode = -1;
122 		if (mode >= 0)
123 			ch->user[i].revision = mode;
124 		ch->user[i].mode = 0;
125 		snprintf(buf, sizeof(buf), "dev%d.mode", i);
126 		if (resource_string_value(device_get_name(dev),
127 		    device_get_unit(dev), buf, &res) == 0)
128 			mode = ata_str2mode(res);
129 		else if (resource_string_value(device_get_name(dev),
130 		    device_get_unit(dev), "mode", &res) == 0)
131 			mode = ata_str2mode(res);
132 		else
133 			mode = -1;
134 		if (mode >= 0)
135 			ch->user[i].mode = mode;
136 		if (ch->flags & ATA_SATA)
137 			ch->user[i].bytecount = 8192;
138 		else
139 			ch->user[i].bytecount = MAXPHYS;
140 		ch->user[i].caps = 0;
141 		ch->curr[i] = ch->user[i];
142 		if (ch->flags & ATA_SATA) {
143 			if (ch->pm_level > 0)
144 				ch->user[i].caps |= CTS_SATA_CAPS_H_PMREQ;
145 			if (ch->pm_level > 1)
146 				ch->user[i].caps |= CTS_SATA_CAPS_D_PMREQ;
147 		} else {
148 			if (!(ch->flags & ATA_NO_48BIT_DMA))
149 				ch->user[i].caps |= CTS_ATA_CAPS_H_DMA48;
150 		}
151 	}
152 	callout_init(&ch->poll_callout, 1);
153 
154     /* allocate DMA resources if DMA HW present*/
155     if (ch->dma.alloc)
156 	ch->dma.alloc(dev);
157 
158     /* setup interrupt delivery */
159     rid = ATA_IRQ_RID;
160     ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
161 				       RF_SHAREABLE | RF_ACTIVE);
162     if (!ch->r_irq) {
163 	device_printf(dev, "unable to allocate interrupt\n");
164 	return ENXIO;
165     }
166     if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL,
167 				ata_interrupt, ch, &ch->ih))) {
168 	bus_release_resource(dev, SYS_RES_IRQ, rid, ch->r_irq);
169 	device_printf(dev, "unable to setup interrupt\n");
170 	return error;
171     }
172 
173 	if (ch->flags & ATA_PERIODIC_POLL)
174 		callout_reset(&ch->poll_callout, hz, ata_periodic_poll, ch);
175 	mtx_lock(&ch->state_mtx);
176 	/* Create the device queue for our SIM. */
177 	devq = cam_simq_alloc(1);
178 	if (devq == NULL) {
179 		device_printf(dev, "Unable to allocate simq\n");
180 		error = ENOMEM;
181 		goto err1;
182 	}
183 	/* Construct SIM entry */
184 	ch->sim = cam_sim_alloc(ataaction, atapoll, "ata", ch,
185 	    device_get_unit(dev), &ch->state_mtx, 1, 0, devq);
186 	if (ch->sim == NULL) {
187 		device_printf(dev, "unable to allocate sim\n");
188 		cam_simq_free(devq);
189 		error = ENOMEM;
190 		goto err1;
191 	}
192 	if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) {
193 		device_printf(dev, "unable to register xpt bus\n");
194 		error = ENXIO;
195 		goto err2;
196 	}
197 	if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim),
198 	    CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
199 		device_printf(dev, "unable to create path\n");
200 		error = ENXIO;
201 		goto err3;
202 	}
203 	mtx_unlock(&ch->state_mtx);
204 	return (0);
205 
206 err3:
207 	xpt_bus_deregister(cam_sim_path(ch->sim));
208 err2:
209 	cam_sim_free(ch->sim, /*free_devq*/TRUE);
210 	ch->sim = NULL;
211 err1:
212 	bus_release_resource(dev, SYS_RES_IRQ, rid, ch->r_irq);
213 	mtx_unlock(&ch->state_mtx);
214 	if (ch->flags & ATA_PERIODIC_POLL)
215 		callout_drain(&ch->poll_callout);
216 	return (error);
217 }
218 
219 int
220 ata_detach(device_t dev)
221 {
222     struct ata_channel *ch = device_get_softc(dev);
223 
224     /* check that we have a valid channel to detach */
225     if (!ch->r_irq)
226 	return ENXIO;
227 
228     /* grap the channel lock so no new requests gets launched */
229     mtx_lock(&ch->state_mtx);
230     ch->state |= ATA_STALL_QUEUE;
231     mtx_unlock(&ch->state_mtx);
232     if (ch->flags & ATA_PERIODIC_POLL)
233 	callout_drain(&ch->poll_callout);
234 
235     taskqueue_drain(taskqueue_thread, &ch->conntask);
236 
237 	mtx_lock(&ch->state_mtx);
238 	xpt_async(AC_LOST_DEVICE, ch->path, NULL);
239 	xpt_free_path(ch->path);
240 	xpt_bus_deregister(cam_sim_path(ch->sim));
241 	cam_sim_free(ch->sim, /*free_devq*/TRUE);
242 	ch->sim = NULL;
243 	mtx_unlock(&ch->state_mtx);
244 
245     /* release resources */
246     bus_teardown_intr(dev, ch->r_irq, ch->ih);
247     bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
248     ch->r_irq = NULL;
249 
250     /* free DMA resources if DMA HW present*/
251     if (ch->dma.free)
252 	ch->dma.free(dev);
253 
254     mtx_destroy(&ch->state_mtx);
255     return 0;
256 }
257 
258 static void
259 ata_conn_event(void *context, int dummy)
260 {
261 	device_t dev = (device_t)context;
262 	struct ata_channel *ch = device_get_softc(dev);
263 	union ccb *ccb;
264 
265 	mtx_lock(&ch->state_mtx);
266 	if (ch->sim == NULL) {
267 		mtx_unlock(&ch->state_mtx);
268 		return;
269 	}
270 	ata_reinit(dev);
271 	if ((ccb = xpt_alloc_ccb_nowait()) == NULL)
272 		return;
273 	if (xpt_create_path(&ccb->ccb_h.path, NULL,
274 	    cam_sim_path(ch->sim),
275 	    CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
276 		xpt_free_ccb(ccb);
277 		return;
278 	}
279 	xpt_rescan(ccb);
280 	mtx_unlock(&ch->state_mtx);
281 }
282 
283 int
284 ata_reinit(device_t dev)
285 {
286     struct ata_channel *ch = device_get_softc(dev);
287     struct ata_request *request;
288 
289 	xpt_freeze_simq(ch->sim, 1);
290 	if ((request = ch->running)) {
291 		ch->running = NULL;
292 		if (ch->state == ATA_ACTIVE)
293 		    ch->state = ATA_IDLE;
294 		callout_stop(&request->callout);
295 		if (ch->dma.unload)
296 		    ch->dma.unload(request);
297 		request->result = ERESTART;
298 		ata_cam_end_transaction(dev, request);
299 	}
300 	/* reset the controller HW, the channel and device(s) */
301 	ATA_RESET(dev);
302 	/* Tell the XPT about the event */
303 	xpt_async(AC_BUS_RESET, ch->path, NULL);
304 	xpt_release_simq(ch->sim, TRUE);
305 	return(0);
306 }
307 
308 int
309 ata_suspend(device_t dev)
310 {
311     struct ata_channel *ch;
312 
313     /* check for valid device */
314     if (!dev || !(ch = device_get_softc(dev)))
315 	return ENXIO;
316 
317 	if (ch->flags & ATA_PERIODIC_POLL)
318 		callout_drain(&ch->poll_callout);
319 	mtx_lock(&ch->state_mtx);
320 	xpt_freeze_simq(ch->sim, 1);
321 	while (ch->state != ATA_IDLE)
322 		msleep(ch, &ch->state_mtx, PRIBIO, "atasusp", hz/100);
323 	mtx_unlock(&ch->state_mtx);
324     return(0);
325 }
326 
327 int
328 ata_resume(device_t dev)
329 {
330     struct ata_channel *ch;
331     int error;
332 
333     /* check for valid device */
334     if (!dev || !(ch = device_get_softc(dev)))
335 	return ENXIO;
336 
337 	mtx_lock(&ch->state_mtx);
338 	error = ata_reinit(dev);
339 	xpt_release_simq(ch->sim, TRUE);
340 	mtx_unlock(&ch->state_mtx);
341 	if (ch->flags & ATA_PERIODIC_POLL)
342 		callout_reset(&ch->poll_callout, hz, ata_periodic_poll, ch);
343     return error;
344 }
345 
346 void
347 ata_interrupt(void *data)
348 {
349     struct ata_channel *ch = (struct ata_channel *)data;
350 
351     mtx_lock(&ch->state_mtx);
352     ata_interrupt_locked(data);
353     mtx_unlock(&ch->state_mtx);
354 }
355 
356 static void
357 ata_interrupt_locked(void *data)
358 {
359 	struct ata_channel *ch = (struct ata_channel *)data;
360 	struct ata_request *request;
361 
362 	/* ignore interrupt if its not for us */
363 	if (ch->hw.status && !ch->hw.status(ch->dev))
364 		return;
365 
366 	/* do we have a running request */
367 	if (!(request = ch->running))
368 		return;
369 
370 	ATA_DEBUG_RQ(request, "interrupt");
371 
372 	/* safetycheck for the right state */
373 	if (ch->state == ATA_IDLE) {
374 		device_printf(request->dev, "interrupt on idle channel ignored\n");
375 		return;
376 	}
377 
378 	/*
379 	 * we have the HW locks, so end the transaction for this request
380 	 * if it finishes immediately otherwise wait for next interrupt
381 	 */
382 	if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
383 		ch->running = NULL;
384 		if (ch->state == ATA_ACTIVE)
385 			ch->state = ATA_IDLE;
386 		ata_cam_end_transaction(ch->dev, request);
387 		return;
388 	}
389 }
390 
391 static void
392 ata_periodic_poll(void *data)
393 {
394     struct ata_channel *ch = (struct ata_channel *)data;
395 
396     callout_reset(&ch->poll_callout, hz, ata_periodic_poll, ch);
397     ata_interrupt(ch);
398 }
399 
400 void
401 ata_print_cable(device_t dev, u_int8_t *who)
402 {
403     device_printf(dev,
404                   "DMA limited to UDMA33, %s found non-ATA66 cable\n", who);
405 }
406 
407 /*
408  * misc support functions
409  */
410 void
411 ata_default_registers(device_t dev)
412 {
413     struct ata_channel *ch = device_get_softc(dev);
414 
415     /* fill in the defaults from whats setup already */
416     ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
417     ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
418     ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
419     ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
420     ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
421     ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
422     ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
423     ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
424 }
425 
426 void
427 ata_udelay(int interval)
428 {
429     /* for now just use DELAY, the timer/sleep subsytems are not there yet */
430     if (1 || interval < (1000000/hz) || ata_delayed_attach)
431 	DELAY(interval);
432     else
433 	pause("ataslp", interval/(1000000/hz));
434 }
435 
436 const char *
437 ata_cmd2str(struct ata_request *request)
438 {
439 	static char buffer[20];
440 
441 	if (request->flags & ATA_R_ATAPI) {
442 		switch (request->u.atapi.sense.key ?
443 		    request->u.atapi.saved_cmd : request->u.atapi.ccb[0]) {
444 		case 0x00: return ("TEST_UNIT_READY");
445 		case 0x01: return ("REZERO");
446 		case 0x03: return ("REQUEST_SENSE");
447 		case 0x04: return ("FORMAT");
448 		case 0x08: return ("READ");
449 		case 0x0a: return ("WRITE");
450 		case 0x10: return ("WEOF");
451 		case 0x11: return ("SPACE");
452 		case 0x12: return ("INQUIRY");
453 		case 0x15: return ("MODE_SELECT");
454 		case 0x19: return ("ERASE");
455 		case 0x1a: return ("MODE_SENSE");
456 		case 0x1b: return ("START_STOP");
457 		case 0x1e: return ("PREVENT_ALLOW");
458 		case 0x23: return ("ATAPI_READ_FORMAT_CAPACITIES");
459 		case 0x25: return ("READ_CAPACITY");
460 		case 0x28: return ("READ_BIG");
461 		case 0x2a: return ("WRITE_BIG");
462 		case 0x2b: return ("LOCATE");
463 		case 0x34: return ("READ_POSITION");
464 		case 0x35: return ("SYNCHRONIZE_CACHE");
465 		case 0x3b: return ("WRITE_BUFFER");
466 		case 0x3c: return ("READ_BUFFER");
467 		case 0x42: return ("READ_SUBCHANNEL");
468 		case 0x43: return ("READ_TOC");
469 		case 0x45: return ("PLAY_10");
470 		case 0x47: return ("PLAY_MSF");
471 		case 0x48: return ("PLAY_TRACK");
472 		case 0x4b: return ("PAUSE");
473 		case 0x51: return ("READ_DISK_INFO");
474 		case 0x52: return ("READ_TRACK_INFO");
475 		case 0x53: return ("RESERVE_TRACK");
476 		case 0x54: return ("SEND_OPC_INFO");
477 		case 0x55: return ("MODE_SELECT_BIG");
478 		case 0x58: return ("REPAIR_TRACK");
479 		case 0x59: return ("READ_MASTER_CUE");
480 		case 0x5a: return ("MODE_SENSE_BIG");
481 		case 0x5b: return ("CLOSE_TRACK/SESSION");
482 		case 0x5c: return ("READ_BUFFER_CAPACITY");
483 		case 0x5d: return ("SEND_CUE_SHEET");
484 		case 0x96: return ("SERVICE_ACTION_IN");
485 		case 0xa1: return ("BLANK_CMD");
486 		case 0xa3: return ("SEND_KEY");
487 		case 0xa4: return ("REPORT_KEY");
488 		case 0xa5: return ("PLAY_12");
489 		case 0xa6: return ("LOAD_UNLOAD");
490 		case 0xad: return ("READ_DVD_STRUCTURE");
491 		case 0xb4: return ("PLAY_CD");
492 		case 0xbb: return ("SET_SPEED");
493 		case 0xbd: return ("MECH_STATUS");
494 		case 0xbe: return ("READ_CD");
495 		case 0xff: return ("POLL_DSC");
496 		}
497 	} else {
498 		switch (request->u.ata.command) {
499 		case 0x00:
500 			switch (request->u.ata.feature) {
501 			case 0x00: return ("NOP FLUSHQUEUE");
502 			case 0x01: return ("NOP AUTOPOLL");
503 			}
504 			return ("NOP");
505 		case 0x03: return ("CFA_REQUEST_EXTENDED_ERROR");
506 		case 0x06:
507 			switch (request->u.ata.feature) {
508 			case 0x01: return ("DSM TRIM");
509 			}
510 			return "DSM";
511 		case 0x08: return ("DEVICE_RESET");
512 		case 0x20: return ("READ");
513 		case 0x24: return ("READ48");
514 		case 0x25: return ("READ_DMA48");
515 		case 0x26: return ("READ_DMA_QUEUED48");
516 		case 0x27: return ("READ_NATIVE_MAX_ADDRESS48");
517 		case 0x29: return ("READ_MUL48");
518 		case 0x2a: return ("READ_STREAM_DMA48");
519 		case 0x2b: return ("READ_STREAM48");
520 		case 0x2f: return ("READ_LOG_EXT");
521 		case 0x30: return ("WRITE");
522 		case 0x34: return ("WRITE48");
523 		case 0x35: return ("WRITE_DMA48");
524 		case 0x36: return ("WRITE_DMA_QUEUED48");
525 		case 0x37: return ("SET_MAX_ADDRESS48");
526 		case 0x39: return ("WRITE_MUL48");
527 		case 0x3a: return ("WRITE_STREAM_DMA48");
528 		case 0x3b: return ("WRITE_STREAM48");
529 		case 0x3d: return ("WRITE_DMA_FUA48");
530 		case 0x3e: return ("WRITE_DMA_QUEUED_FUA48");
531 		case 0x3f: return ("WRITE_LOG_EXT");
532 		case 0x40: return ("READ_VERIFY");
533 		case 0x42: return ("READ_VERIFY48");
534 		case 0x45:
535 			switch (request->u.ata.feature) {
536 			case 0x55: return ("WRITE_UNCORRECTABLE48 PSEUDO");
537 			case 0xaa: return ("WRITE_UNCORRECTABLE48 FLAGGED");
538 			}
539 			return "WRITE_UNCORRECTABLE48";
540 		case 0x51: return ("CONFIGURE_STREAM");
541 		case 0x60: return ("READ_FPDMA_QUEUED");
542 		case 0x61: return ("WRITE_FPDMA_QUEUED");
543 		case 0x63: return ("NCQ_NON_DATA");
544 		case 0x64: return ("SEND_FPDMA_QUEUED");
545 		case 0x65: return ("RECEIVE_FPDMA_QUEUED");
546 		case 0x67:
547 			if (request->u.ata.feature == 0xec)
548 				return ("SEP_ATTN IDENTIFY");
549 			switch (request->u.ata.lba) {
550 			case 0x00: return ("SEP_ATTN READ BUFFER");
551 			case 0x02: return ("SEP_ATTN RECEIVE DIAGNOSTIC RESULTS");
552 			case 0x80: return ("SEP_ATTN WRITE BUFFER");
553 			case 0x82: return ("SEP_ATTN SEND DIAGNOSTIC");
554 			}
555 			return ("SEP_ATTN");
556 		case 0x70: return ("SEEK");
557 		case 0x87: return ("CFA_TRANSLATE_SECTOR");
558 		case 0x90: return ("EXECUTE_DEVICE_DIAGNOSTIC");
559 		case 0x92: return ("DOWNLOAD_MICROCODE");
560 		case 0xa0: return ("PACKET");
561 		case 0xa1: return ("ATAPI_IDENTIFY");
562 		case 0xa2: return ("SERVICE");
563 		case 0xb0:
564 			switch(request->u.ata.feature) {
565 			case 0xd0: return ("SMART READ ATTR VALUES");
566 			case 0xd1: return ("SMART READ ATTR THRESHOLDS");
567 			case 0xd3: return ("SMART SAVE ATTR VALUES");
568 			case 0xd4: return ("SMART EXECUTE OFFLINE IMMEDIATE");
569 			case 0xd5: return ("SMART READ LOG DATA");
570 			case 0xd8: return ("SMART ENABLE OPERATION");
571 			case 0xd9: return ("SMART DISABLE OPERATION");
572 			case 0xda: return ("SMART RETURN STATUS");
573 			}
574 			return ("SMART");
575 		case 0xb1: return ("DEVICE CONFIGURATION");
576 		case 0xc0: return ("CFA_ERASE");
577 		case 0xc4: return ("READ_MUL");
578 		case 0xc5: return ("WRITE_MUL");
579 		case 0xc6: return ("SET_MULTI");
580 		case 0xc7: return ("READ_DMA_QUEUED");
581 		case 0xc8: return ("READ_DMA");
582 		case 0xca: return ("WRITE_DMA");
583 		case 0xcc: return ("WRITE_DMA_QUEUED");
584 		case 0xcd: return ("CFA_WRITE_MULTIPLE_WITHOUT_ERASE");
585 		case 0xce: return ("WRITE_MUL_FUA48");
586 		case 0xd1: return ("CHECK_MEDIA_CARD_TYPE");
587 		case 0xda: return ("GET_MEDIA_STATUS");
588 		case 0xde: return ("MEDIA_LOCK");
589 		case 0xdf: return ("MEDIA_UNLOCK");
590 		case 0xe0: return ("STANDBY_IMMEDIATE");
591 		case 0xe1: return ("IDLE_IMMEDIATE");
592 		case 0xe2: return ("STANDBY");
593 		case 0xe3: return ("IDLE");
594 		case 0xe4: return ("READ_BUFFER/PM");
595 		case 0xe5: return ("CHECK_POWER_MODE");
596 		case 0xe6: return ("SLEEP");
597 		case 0xe7: return ("FLUSHCACHE");
598 		case 0xe8: return ("WRITE_PM");
599 		case 0xea: return ("FLUSHCACHE48");
600 		case 0xec: return ("ATA_IDENTIFY");
601 		case 0xed: return ("MEDIA_EJECT");
602 		case 0xef:
603 			switch (request->u.ata.feature) {
604 			case 0x03: return ("SETFEATURES SET TRANSFER MODE");
605 			case 0x02: return ("SETFEATURES ENABLE WCACHE");
606 			case 0x82: return ("SETFEATURES DISABLE WCACHE");
607 			case 0x06: return ("SETFEATURES ENABLE PUIS");
608 			case 0x86: return ("SETFEATURES DISABLE PUIS");
609 			case 0x07: return ("SETFEATURES SPIN-UP");
610 			case 0x10: return ("SETFEATURES ENABLE SATA FEATURE");
611 			case 0x90: return ("SETFEATURES DISABLE SATA FEATURE");
612 			case 0xaa: return ("SETFEATURES ENABLE RCACHE");
613 			case 0x55: return ("SETFEATURES DISABLE RCACHE");
614 			case 0x5d: return ("SETFEATURES ENABLE RELIRQ");
615 			case 0xdd: return ("SETFEATURES DISABLE RELIRQ");
616 			case 0x5e: return ("SETFEATURES ENABLE SRVIRQ");
617 			case 0xde: return ("SETFEATURES DISABLE SRVIRQ");
618 			}
619 			return "SETFEATURES";
620 		case 0xf1: return ("SECURITY_SET_PASSWORD");
621 		case 0xf2: return ("SECURITY_UNLOCK");
622 		case 0xf3: return ("SECURITY_ERASE_PREPARE");
623 		case 0xf4: return ("SECURITY_ERASE_UNIT");
624 		case 0xf5: return ("SECURITY_FREEZE_LOCK");
625 		case 0xf6: return ("SECURITY_DISABLE_PASSWORD");
626 		case 0xf8: return ("READ_NATIVE_MAX_ADDRESS");
627 		case 0xf9: return ("SET_MAX_ADDRESS");
628 		}
629 	}
630 	sprintf(buffer, "unknown CMD (0x%02x)", request->u.ata.command);
631 	return (buffer);
632 }
633 
634 const char *
635 ata_mode2str(int mode)
636 {
637     switch (mode) {
638     case -1: return "UNSUPPORTED";
639     case ATA_PIO0: return "PIO0";
640     case ATA_PIO1: return "PIO1";
641     case ATA_PIO2: return "PIO2";
642     case ATA_PIO3: return "PIO3";
643     case ATA_PIO4: return "PIO4";
644     case ATA_WDMA0: return "WDMA0";
645     case ATA_WDMA1: return "WDMA1";
646     case ATA_WDMA2: return "WDMA2";
647     case ATA_UDMA0: return "UDMA16";
648     case ATA_UDMA1: return "UDMA25";
649     case ATA_UDMA2: return "UDMA33";
650     case ATA_UDMA3: return "UDMA40";
651     case ATA_UDMA4: return "UDMA66";
652     case ATA_UDMA5: return "UDMA100";
653     case ATA_UDMA6: return "UDMA133";
654     case ATA_SA150: return "SATA150";
655     case ATA_SA300: return "SATA300";
656     case ATA_SA600: return "SATA600";
657     default:
658 	if (mode & ATA_DMA_MASK)
659 	    return "BIOSDMA";
660 	else
661 	    return "BIOSPIO";
662     }
663 }
664 
665 static int
666 ata_str2mode(const char *str)
667 {
668 
669 	if (!strcasecmp(str, "PIO0")) return (ATA_PIO0);
670 	if (!strcasecmp(str, "PIO1")) return (ATA_PIO1);
671 	if (!strcasecmp(str, "PIO2")) return (ATA_PIO2);
672 	if (!strcasecmp(str, "PIO3")) return (ATA_PIO3);
673 	if (!strcasecmp(str, "PIO4")) return (ATA_PIO4);
674 	if (!strcasecmp(str, "WDMA0")) return (ATA_WDMA0);
675 	if (!strcasecmp(str, "WDMA1")) return (ATA_WDMA1);
676 	if (!strcasecmp(str, "WDMA2")) return (ATA_WDMA2);
677 	if (!strcasecmp(str, "UDMA0")) return (ATA_UDMA0);
678 	if (!strcasecmp(str, "UDMA16")) return (ATA_UDMA0);
679 	if (!strcasecmp(str, "UDMA1")) return (ATA_UDMA1);
680 	if (!strcasecmp(str, "UDMA25")) return (ATA_UDMA1);
681 	if (!strcasecmp(str, "UDMA2")) return (ATA_UDMA2);
682 	if (!strcasecmp(str, "UDMA33")) return (ATA_UDMA2);
683 	if (!strcasecmp(str, "UDMA3")) return (ATA_UDMA3);
684 	if (!strcasecmp(str, "UDMA44")) return (ATA_UDMA3);
685 	if (!strcasecmp(str, "UDMA4")) return (ATA_UDMA4);
686 	if (!strcasecmp(str, "UDMA66")) return (ATA_UDMA4);
687 	if (!strcasecmp(str, "UDMA5")) return (ATA_UDMA5);
688 	if (!strcasecmp(str, "UDMA100")) return (ATA_UDMA5);
689 	if (!strcasecmp(str, "UDMA6")) return (ATA_UDMA6);
690 	if (!strcasecmp(str, "UDMA133")) return (ATA_UDMA6);
691 	return (-1);
692 }
693 
694 int
695 ata_atapi(device_t dev, int target)
696 {
697     struct ata_channel *ch = device_get_softc(dev);
698 
699     return (ch->devices & (ATA_ATAPI_MASTER << target));
700 }
701 
702 void
703 ata_timeout(struct ata_request *request)
704 {
705 	struct ata_channel *ch;
706 
707 	ch = device_get_softc(request->parent);
708 	//request->flags |= ATA_R_DEBUG;
709 	ATA_DEBUG_RQ(request, "timeout");
710 
711 	/*
712 	 * If we have an ATA_ACTIVE request running, we flag the request
713 	 * ATA_R_TIMEOUT so ata_cam_end_transaction() will handle it correctly.
714 	 * Also, NULL out the running request so we wont loose the race with
715 	 * an eventual interrupt arriving late.
716 	 */
717 	if (ch->state == ATA_ACTIVE) {
718 		request->flags |= ATA_R_TIMEOUT;
719 		if (ch->dma.unload)
720 			ch->dma.unload(request);
721 		ch->running = NULL;
722 		ch->state = ATA_IDLE;
723 		ata_cam_end_transaction(ch->dev, request);
724 	}
725 	mtx_unlock(&ch->state_mtx);
726 }
727 
728 static void
729 ata_cam_begin_transaction(device_t dev, union ccb *ccb)
730 {
731 	struct ata_channel *ch = device_get_softc(dev);
732 	struct ata_request *request;
733 
734 	request = &ch->request;
735 	bzero(request, sizeof(*request));
736 
737 	/* setup request */
738 	request->dev = NULL;
739 	request->parent = dev;
740 	request->unit = ccb->ccb_h.target_id;
741 	if (ccb->ccb_h.func_code == XPT_ATA_IO) {
742 		request->data = ccb->ataio.data_ptr;
743 		request->bytecount = ccb->ataio.dxfer_len;
744 		request->u.ata.command = ccb->ataio.cmd.command;
745 		request->u.ata.feature = ((uint16_t)ccb->ataio.cmd.features_exp << 8) |
746 					  (uint16_t)ccb->ataio.cmd.features;
747 		request->u.ata.count = ((uint16_t)ccb->ataio.cmd.sector_count_exp << 8) |
748 					(uint16_t)ccb->ataio.cmd.sector_count;
749 		if (ccb->ataio.cmd.flags & CAM_ATAIO_48BIT) {
750 			request->flags |= ATA_R_48BIT;
751 			request->u.ata.lba =
752 				     ((uint64_t)ccb->ataio.cmd.lba_high_exp << 40) |
753 				     ((uint64_t)ccb->ataio.cmd.lba_mid_exp << 32) |
754 				     ((uint64_t)ccb->ataio.cmd.lba_low_exp << 24);
755 		} else {
756 			request->u.ata.lba =
757 				     ((uint64_t)(ccb->ataio.cmd.device & 0x0f) << 24);
758 		}
759 		request->u.ata.lba |= ((uint64_t)ccb->ataio.cmd.lba_high << 16) |
760 				      ((uint64_t)ccb->ataio.cmd.lba_mid << 8) |
761 				       (uint64_t)ccb->ataio.cmd.lba_low;
762 		if (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)
763 			request->flags |= ATA_R_NEEDRESULT;
764 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE &&
765 		    ccb->ataio.cmd.flags & CAM_ATAIO_DMA)
766 			request->flags |= ATA_R_DMA;
767 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
768 			request->flags |= ATA_R_READ;
769 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
770 			request->flags |= ATA_R_WRITE;
771 		if (ccb->ataio.cmd.command == ATA_READ_MUL ||
772 		    ccb->ataio.cmd.command == ATA_READ_MUL48 ||
773 		    ccb->ataio.cmd.command == ATA_WRITE_MUL ||
774 		    ccb->ataio.cmd.command == ATA_WRITE_MUL48) {
775 			request->transfersize = min(request->bytecount,
776 			    ch->curr[ccb->ccb_h.target_id].bytecount);
777 		} else
778 			request->transfersize = min(request->bytecount, 512);
779 	} else {
780 		request->data = ccb->csio.data_ptr;
781 		request->bytecount = ccb->csio.dxfer_len;
782 		bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
783 		    ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes,
784 		    request->u.atapi.ccb, ccb->csio.cdb_len);
785 		request->flags |= ATA_R_ATAPI;
786 		if (ch->curr[ccb->ccb_h.target_id].atapi == 16)
787 			request->flags |= ATA_R_ATAPI16;
788 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE &&
789 		    ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA)
790 			request->flags |= ATA_R_DMA;
791 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
792 			request->flags |= ATA_R_READ;
793 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
794 			request->flags |= ATA_R_WRITE;
795 		request->transfersize = min(request->bytecount,
796 		    ch->curr[ccb->ccb_h.target_id].bytecount);
797 	}
798 	request->retries = 0;
799 	request->timeout = (ccb->ccb_h.timeout + 999) / 1000;
800 	callout_init_mtx(&request->callout, &ch->state_mtx, CALLOUT_RETURNUNLOCKED);
801 	request->ccb = ccb;
802 	request->flags |= ATA_R_DATA_IN_CCB;
803 
804 	ch->running = request;
805 	ch->state = ATA_ACTIVE;
806 	if (ch->hw.begin_transaction(request) == ATA_OP_FINISHED) {
807 	    ch->running = NULL;
808 	    ch->state = ATA_IDLE;
809 	    ata_cam_end_transaction(dev, request);
810 	    return;
811 	}
812 }
813 
814 static void
815 ata_cam_request_sense(device_t dev, struct ata_request *request)
816 {
817 	struct ata_channel *ch = device_get_softc(dev);
818 	union ccb *ccb = request->ccb;
819 
820 	ch->requestsense = 1;
821 
822 	bzero(request, sizeof(*request));
823 	request->dev = NULL;
824 	request->parent = dev;
825 	request->unit = ccb->ccb_h.target_id;
826 	request->data = (void *)&ccb->csio.sense_data;
827 	request->bytecount = ccb->csio.sense_len;
828 	request->u.atapi.ccb[0] = ATAPI_REQUEST_SENSE;
829 	request->u.atapi.ccb[4] = ccb->csio.sense_len;
830 	request->flags |= ATA_R_ATAPI;
831 	if (ch->curr[ccb->ccb_h.target_id].atapi == 16)
832 		request->flags |= ATA_R_ATAPI16;
833 	if (ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA)
834 		request->flags |= ATA_R_DMA;
835 	request->flags |= ATA_R_READ;
836 	request->transfersize = min(request->bytecount,
837 	    ch->curr[ccb->ccb_h.target_id].bytecount);
838 	request->retries = 0;
839 	request->timeout = (ccb->ccb_h.timeout + 999) / 1000;
840 	callout_init_mtx(&request->callout, &ch->state_mtx, CALLOUT_RETURNUNLOCKED);
841 	request->ccb = ccb;
842 
843 	ch->running = request;
844 	ch->state = ATA_ACTIVE;
845 	if (ch->hw.begin_transaction(request) == ATA_OP_FINISHED) {
846 		ch->running = NULL;
847 		ch->state = ATA_IDLE;
848 		ata_cam_end_transaction(dev, request);
849 		return;
850 	}
851 }
852 
853 static void
854 ata_cam_process_sense(device_t dev, struct ata_request *request)
855 {
856 	struct ata_channel *ch = device_get_softc(dev);
857 	union ccb *ccb = request->ccb;
858 	int fatalerr = 0;
859 
860 	ch->requestsense = 0;
861 
862 	if (request->flags & ATA_R_TIMEOUT)
863 		fatalerr = 1;
864 	if ((request->flags & ATA_R_TIMEOUT) == 0 &&
865 	    (request->status & ATA_S_ERROR) == 0 &&
866 	    request->result == 0) {
867 		ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
868 	} else {
869 		ccb->ccb_h.status &= ~CAM_STATUS_MASK;
870 		ccb->ccb_h.status |= CAM_AUTOSENSE_FAIL;
871 	}
872 
873 	xpt_done(ccb);
874 	/* Do error recovery if needed. */
875 	if (fatalerr)
876 		ata_reinit(dev);
877 }
878 
879 static void
880 ata_cam_end_transaction(device_t dev, struct ata_request *request)
881 {
882 	struct ata_channel *ch = device_get_softc(dev);
883 	union ccb *ccb = request->ccb;
884 	int fatalerr = 0;
885 
886 	if (ch->requestsense) {
887 		ata_cam_process_sense(dev, request);
888 		return;
889 	}
890 
891 	ccb->ccb_h.status &= ~CAM_STATUS_MASK;
892 	if (request->flags & ATA_R_TIMEOUT) {
893 		xpt_freeze_simq(ch->sim, 1);
894 		ccb->ccb_h.status &= ~CAM_STATUS_MASK;
895 		ccb->ccb_h.status |= CAM_CMD_TIMEOUT | CAM_RELEASE_SIMQ;
896 		fatalerr = 1;
897 	} else if (request->status & ATA_S_ERROR) {
898 		if (ccb->ccb_h.func_code == XPT_ATA_IO) {
899 			ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR;
900 		} else {
901 			ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
902 			ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
903 		}
904 	} else if (request->result == ERESTART)
905 		ccb->ccb_h.status |= CAM_REQUEUE_REQ;
906 	else if (request->result != 0)
907 		ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
908 	else
909 		ccb->ccb_h.status |= CAM_REQ_CMP;
910 	if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP &&
911 	    !(ccb->ccb_h.status & CAM_DEV_QFRZN)) {
912 		xpt_freeze_devq(ccb->ccb_h.path, 1);
913 		ccb->ccb_h.status |= CAM_DEV_QFRZN;
914 	}
915 	if (ccb->ccb_h.func_code == XPT_ATA_IO &&
916 	    ((request->status & ATA_S_ERROR) ||
917 	    (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT))) {
918 		struct ata_res *res = &ccb->ataio.res;
919 		res->status = request->status;
920 		res->error = request->error;
921 		res->lba_low = request->u.ata.lba;
922 		res->lba_mid = request->u.ata.lba >> 8;
923 		res->lba_high = request->u.ata.lba >> 16;
924 		res->device = request->u.ata.lba >> 24;
925 		res->lba_low_exp = request->u.ata.lba >> 24;
926 		res->lba_mid_exp = request->u.ata.lba >> 32;
927 		res->lba_high_exp = request->u.ata.lba >> 40;
928 		res->sector_count = request->u.ata.count;
929 		res->sector_count_exp = request->u.ata.count >> 8;
930 	}
931 	if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
932 		if (ccb->ccb_h.func_code == XPT_ATA_IO) {
933 			ccb->ataio.resid =
934 			    ccb->ataio.dxfer_len - request->donecount;
935 		} else {
936 			ccb->csio.resid =
937 			    ccb->csio.dxfer_len - request->donecount;
938 		}
939 	}
940 	if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR &&
941 	    (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)
942 		ata_cam_request_sense(dev, request);
943 	else
944 		xpt_done(ccb);
945 	/* Do error recovery if needed. */
946 	if (fatalerr)
947 		ata_reinit(dev);
948 }
949 
950 static int
951 ata_check_ids(device_t dev, union ccb *ccb)
952 {
953 	struct ata_channel *ch = device_get_softc(dev);
954 
955 	if (ccb->ccb_h.target_id > ((ch->flags & ATA_NO_SLAVE) ? 0 : 1)) {
956 		ccb->ccb_h.status = CAM_TID_INVALID;
957 		xpt_done(ccb);
958 		return (-1);
959 	}
960 	if (ccb->ccb_h.target_lun != 0) {
961 		ccb->ccb_h.status = CAM_LUN_INVALID;
962 		xpt_done(ccb);
963 		return (-1);
964 	}
965 	return (0);
966 }
967 
968 static void
969 ataaction(struct cam_sim *sim, union ccb *ccb)
970 {
971 	device_t dev, parent;
972 	struct ata_channel *ch;
973 
974 	CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ataaction func_code=%x\n",
975 	    ccb->ccb_h.func_code));
976 
977 	ch = (struct ata_channel *)cam_sim_softc(sim);
978 	dev = ch->dev;
979 	switch (ccb->ccb_h.func_code) {
980 	/* Common cases first */
981 	case XPT_ATA_IO:	/* Execute the requested I/O operation */
982 	case XPT_SCSI_IO:
983 		if (ata_check_ids(dev, ccb))
984 			return;
985 		if ((ch->devices & ((ATA_ATA_MASTER | ATA_ATAPI_MASTER)
986 		    << ccb->ccb_h.target_id)) == 0) {
987 			ccb->ccb_h.status = CAM_SEL_TIMEOUT;
988 			break;
989 		}
990 		if (ch->running)
991 			device_printf(dev, "already running!\n");
992 		if (ccb->ccb_h.func_code == XPT_ATA_IO &&
993 		    (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
994 		    (ccb->ataio.cmd.control & ATA_A_RESET)) {
995 			struct ata_res *res = &ccb->ataio.res;
996 
997 			bzero(res, sizeof(*res));
998 			if (ch->devices & (ATA_ATA_MASTER << ccb->ccb_h.target_id)) {
999 				res->lba_high = 0;
1000 				res->lba_mid = 0;
1001 			} else {
1002 				res->lba_high = 0xeb;
1003 				res->lba_mid = 0x14;
1004 			}
1005 			ccb->ccb_h.status = CAM_REQ_CMP;
1006 			break;
1007 		}
1008 		ata_cam_begin_transaction(dev, ccb);
1009 		return;
1010 	case XPT_EN_LUN:		/* Enable LUN as a target */
1011 	case XPT_TARGET_IO:		/* Execute target I/O request */
1012 	case XPT_ACCEPT_TARGET_IO:	/* Accept Host Target Mode CDB */
1013 	case XPT_CONT_TARGET_IO:	/* Continue Host Target I/O Connection*/
1014 	case XPT_ABORT:			/* Abort the specified CCB */
1015 		/* XXX Implement */
1016 		ccb->ccb_h.status = CAM_REQ_INVALID;
1017 		break;
1018 	case XPT_SET_TRAN_SETTINGS:
1019 	{
1020 		struct	ccb_trans_settings *cts = &ccb->cts;
1021 		struct	ata_cam_device *d;
1022 
1023 		if (ata_check_ids(dev, ccb))
1024 			return;
1025 		if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
1026 			d = &ch->curr[ccb->ccb_h.target_id];
1027 		else
1028 			d = &ch->user[ccb->ccb_h.target_id];
1029 		if (ch->flags & ATA_SATA) {
1030 			if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION)
1031 				d->revision = cts->xport_specific.sata.revision;
1032 			if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) {
1033 				if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
1034 					d->mode = ATA_SETMODE(ch->dev,
1035 					    ccb->ccb_h.target_id,
1036 					    cts->xport_specific.sata.mode);
1037 				} else
1038 					d->mode = cts->xport_specific.sata.mode;
1039 			}
1040 			if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT)
1041 				d->bytecount = min(8192, cts->xport_specific.sata.bytecount);
1042 			if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI)
1043 				d->atapi = cts->xport_specific.sata.atapi;
1044 			if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS)
1045 				d->caps = cts->xport_specific.sata.caps;
1046 		} else {
1047 			if (cts->xport_specific.ata.valid & CTS_ATA_VALID_MODE) {
1048 				if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
1049 					d->mode = ATA_SETMODE(ch->dev,
1050 					    ccb->ccb_h.target_id,
1051 					    cts->xport_specific.ata.mode);
1052 				} else
1053 					d->mode = cts->xport_specific.ata.mode;
1054 			}
1055 			if (cts->xport_specific.ata.valid & CTS_ATA_VALID_BYTECOUNT)
1056 				d->bytecount = cts->xport_specific.ata.bytecount;
1057 			if (cts->xport_specific.ata.valid & CTS_ATA_VALID_ATAPI)
1058 				d->atapi = cts->xport_specific.ata.atapi;
1059 			if (cts->xport_specific.ata.valid & CTS_ATA_VALID_CAPS)
1060 				d->caps = cts->xport_specific.ata.caps;
1061 		}
1062 		ccb->ccb_h.status = CAM_REQ_CMP;
1063 		break;
1064 	}
1065 	case XPT_GET_TRAN_SETTINGS:
1066 	{
1067 		struct	ccb_trans_settings *cts = &ccb->cts;
1068 		struct  ata_cam_device *d;
1069 
1070 		if (ata_check_ids(dev, ccb))
1071 			return;
1072 		if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
1073 			d = &ch->curr[ccb->ccb_h.target_id];
1074 		else
1075 			d = &ch->user[ccb->ccb_h.target_id];
1076 		cts->protocol = PROTO_UNSPECIFIED;
1077 		cts->protocol_version = PROTO_VERSION_UNSPECIFIED;
1078 		if (ch->flags & ATA_SATA) {
1079 			cts->transport = XPORT_SATA;
1080 			cts->transport_version = XPORT_VERSION_UNSPECIFIED;
1081 			cts->xport_specific.sata.valid = 0;
1082 			cts->xport_specific.sata.mode = d->mode;
1083 			cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE;
1084 			cts->xport_specific.sata.bytecount = d->bytecount;
1085 			cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT;
1086 			if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
1087 				cts->xport_specific.sata.revision =
1088 				    ATA_GETREV(dev, ccb->ccb_h.target_id);
1089 				if (cts->xport_specific.sata.revision != 0xff) {
1090 					cts->xport_specific.sata.valid |=
1091 					    CTS_SATA_VALID_REVISION;
1092 				}
1093 				cts->xport_specific.sata.caps =
1094 				    d->caps & CTS_SATA_CAPS_D;
1095 				if (ch->pm_level) {
1096 					cts->xport_specific.sata.caps |=
1097 					    CTS_SATA_CAPS_H_PMREQ;
1098 				}
1099 				cts->xport_specific.sata.caps &=
1100 				    ch->user[ccb->ccb_h.target_id].caps;
1101 			} else {
1102 				cts->xport_specific.sata.revision = d->revision;
1103 				cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION;
1104 				cts->xport_specific.sata.caps = d->caps;
1105 			}
1106 			cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS;
1107 			cts->xport_specific.sata.atapi = d->atapi;
1108 			cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI;
1109 		} else {
1110 			cts->transport = XPORT_ATA;
1111 			cts->transport_version = XPORT_VERSION_UNSPECIFIED;
1112 			cts->xport_specific.ata.valid = 0;
1113 			cts->xport_specific.ata.mode = d->mode;
1114 			cts->xport_specific.ata.valid |= CTS_ATA_VALID_MODE;
1115 			cts->xport_specific.ata.bytecount = d->bytecount;
1116 			cts->xport_specific.ata.valid |= CTS_ATA_VALID_BYTECOUNT;
1117 			if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
1118 				cts->xport_specific.ata.caps =
1119 				    d->caps & CTS_ATA_CAPS_D;
1120 				if (!(ch->flags & ATA_NO_48BIT_DMA))
1121 					cts->xport_specific.ata.caps |=
1122 					    CTS_ATA_CAPS_H_DMA48;
1123 				cts->xport_specific.ata.caps &=
1124 				    ch->user[ccb->ccb_h.target_id].caps;
1125 			} else
1126 				cts->xport_specific.ata.caps = d->caps;
1127 			cts->xport_specific.ata.valid |= CTS_ATA_VALID_CAPS;
1128 			cts->xport_specific.ata.atapi = d->atapi;
1129 			cts->xport_specific.ata.valid |= CTS_ATA_VALID_ATAPI;
1130 		}
1131 		ccb->ccb_h.status = CAM_REQ_CMP;
1132 		break;
1133 	}
1134 	case XPT_RESET_BUS:		/* Reset the specified SCSI bus */
1135 	case XPT_RESET_DEV:	/* Bus Device Reset the specified SCSI device */
1136 		ata_reinit(dev);
1137 		ccb->ccb_h.status = CAM_REQ_CMP;
1138 		break;
1139 	case XPT_TERM_IO:		/* Terminate the I/O process */
1140 		/* XXX Implement */
1141 		ccb->ccb_h.status = CAM_REQ_INVALID;
1142 		break;
1143 	case XPT_PATH_INQ:		/* Path routing inquiry */
1144 	{
1145 		struct ccb_pathinq *cpi = &ccb->cpi;
1146 
1147 		parent = device_get_parent(dev);
1148 		cpi->version_num = 1; /* XXX??? */
1149 		cpi->hba_inquiry = PI_SDTR_ABLE;
1150 		cpi->target_sprt = 0;
1151 		cpi->hba_misc = PIM_SEQSCAN | PIM_UNMAPPED;
1152 		cpi->hba_eng_cnt = 0;
1153 		if (ch->flags & ATA_NO_SLAVE)
1154 			cpi->max_target = 0;
1155 		else
1156 			cpi->max_target = 1;
1157 		cpi->max_lun = 0;
1158 		cpi->initiator_id = 0;
1159 		cpi->bus_id = cam_sim_bus(sim);
1160 		if (ch->flags & ATA_SATA)
1161 			cpi->base_transfer_speed = 150000;
1162 		else
1163 			cpi->base_transfer_speed = 3300;
1164 		strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
1165 		strncpy(cpi->hba_vid, "ATA", HBA_IDLEN);
1166 		strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
1167 		cpi->unit_number = cam_sim_unit(sim);
1168 		if (ch->flags & ATA_SATA)
1169 			cpi->transport = XPORT_SATA;
1170 		else
1171 			cpi->transport = XPORT_ATA;
1172 		cpi->transport_version = XPORT_VERSION_UNSPECIFIED;
1173 		cpi->protocol = PROTO_ATA;
1174 		cpi->protocol_version = PROTO_VERSION_UNSPECIFIED;
1175 		cpi->maxio = ch->dma.max_iosize ? ch->dma.max_iosize : DFLTPHYS;
1176 		if (device_get_devclass(device_get_parent(parent)) ==
1177 		    devclass_find("pci")) {
1178 			cpi->hba_vendor = pci_get_vendor(parent);
1179 			cpi->hba_device = pci_get_device(parent);
1180 			cpi->hba_subvendor = pci_get_subvendor(parent);
1181 			cpi->hba_subdevice = pci_get_subdevice(parent);
1182 		}
1183 		cpi->ccb_h.status = CAM_REQ_CMP;
1184 		break;
1185 	}
1186 	default:
1187 		ccb->ccb_h.status = CAM_REQ_INVALID;
1188 		break;
1189 	}
1190 	xpt_done(ccb);
1191 }
1192 
1193 static void
1194 atapoll(struct cam_sim *sim)
1195 {
1196 	struct ata_channel *ch = (struct ata_channel *)cam_sim_softc(sim);
1197 
1198 	ata_interrupt_locked(ch);
1199 }
1200 
1201 /*
1202  * module handeling
1203  */
1204 static int
1205 ata_module_event_handler(module_t mod, int what, void *arg)
1206 {
1207 
1208     switch (what) {
1209     case MOD_LOAD:
1210 	return 0;
1211 
1212     case MOD_UNLOAD:
1213 	return 0;
1214 
1215     default:
1216 	return EOPNOTSUPP;
1217     }
1218 }
1219 
1220 static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
1221 DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
1222 MODULE_VERSION(ata, 1);
1223 MODULE_DEPEND(ata, cam, 1, 1, 1);
1224