2 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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.
26 * $FreeBSD: src/sys/dev/ata/ata-all.c,v 1.279 2007/02/23 16:25:08 jhb Exp $
31 #include <sys/param.h>
33 #include <sys/callout.h>
35 #include <sys/ctype.h>
36 #include <sys/device.h>
37 #include <sys/endian.h>
38 #include <sys/kernel.h>
39 #include <sys/libkern.h>
40 #include <sys/lock.h> /* for {get,rel}_mplock() */
41 #include <sys/malloc.h>
42 #include <sys/module.h>
44 #include <sys/objcache.h>
45 #include <sys/queue.h>
46 #include <sys/sysctl.h>
47 #include <sys/systm.h>
49 #include <sys/mplock2.h>
54 /* device structure */
55 static d_ioctl_t ata_ioctl;
56 static struct dev_ops ata_ops = {
65 static void ata_boot_attach(void);
67 static device_t ata_add_child(device_t, struct ata_device *, int);
68 static int ata_getparam(struct ata_device *, int);
69 static void bswap(int8_t *, int);
70 static void btrim(int8_t *, int);
71 static void bpack(int8_t *, int8_t *, int);
74 MALLOC_DEFINE(M_ATA, "ata_generic", "ATA driver generic layer");
75 int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL;
76 devclass_t ata_devclass;
77 struct objcache *ata_request_cache;
78 struct objcache *ata_composite_cache;
79 struct objcache_malloc_args ata_request_malloc_args = {
80 sizeof(struct ata_request), M_ATA };
81 struct objcache_malloc_args ata_composite_malloc_args = {
82 sizeof(struct ata_composite), M_ATA };
86 static int ata_dma = 1;
87 static int atapi_dma = 1;
90 SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
91 TUNABLE_INT("hw.ata.ata_dma", &ata_dma);
92 SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RW, &ata_dma, 0,
93 "ATA disk DMA mode control");
94 TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma);
95 SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RW, &atapi_dma, 0,
96 "ATAPI device DMA mode control");
97 TUNABLE_INT("hw.ata.wc", &ata_wc);
98 SYSCTL_INT(_hw_ata, OID_AUTO, ata_wc, CTLFLAG_RW, &ata_wc, 0,
99 "ATA disk write caching");
102 * newbus device interface related functions
105 ata_probe(device_t dev)
111 ata_attach(device_t dev)
113 struct ata_channel *ch = device_get_softc(dev);
116 /* check that we have a virgin channel to attach */
120 /* initialize the softc basics */
122 ch->state = ATA_IDLE;
123 lockinit(&ch->state_mtx, "ataattach_state", 0, 0);
124 lockinit(&ch->queue_mtx, "ataattach_queue", 0, 0);
127 /* reset the controller HW, the channel and device(s) */
128 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
129 tsleep(&error, 0, "ataatch", 1);
131 ATA_LOCKING(dev, ATA_LF_UNLOCK);
133 /* setup interrupt delivery */
135 ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
136 RF_SHAREABLE | RF_ACTIVE);
138 device_printf(dev, "unable to allocate interrupt\n");
141 if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS,
142 (driver_intr_t *)ata_interrupt, ch, &ch->ih,
144 device_printf(dev, "unable to setup interrupt\n");
148 /* probe and attach devices on this channel unless we are in early boot */
154 ata_detach(device_t dev)
156 struct ata_channel *ch = device_get_softc(dev);
160 /* check that we have a valid channel to detach */
164 /* grap the channel lock so no new requests gets launched */
165 lockmgr(&ch->state_mtx, LK_EXCLUSIVE);
166 ch->state |= ATA_STALL_QUEUE;
167 lockmgr(&ch->state_mtx, LK_RELEASE);
169 /* detach & delete all children */
170 if (!device_get_children(dev, &children, &nchildren)) {
171 for (i = 0; i < nchildren; i++)
173 device_delete_child(dev, children[i]);
174 kfree(children, M_TEMP);
177 /* release resources */
178 bus_teardown_intr(dev, ch->r_irq, ch->ih);
179 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
181 lockuninit(&ch->state_mtx);
182 lockuninit(&ch->queue_mtx);
187 ata_reinit(device_t dev)
189 struct ata_channel *ch = device_get_softc(dev);
190 struct ata_request *request;
194 /* check that we have a valid channel to reinit */
195 if (!ch || !ch->r_irq)
199 device_printf(dev, "reiniting channel ..\n");
201 /* poll for locking the channel */
202 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
203 tsleep(&dev, 0, "atarini", 1);
205 /* catch eventual request in ch->running */
206 lockmgr(&ch->state_mtx, LK_EXCLUSIVE);
207 if ((request = ch->running))
208 callout_stop_sync(&request->callout);
211 /* unconditionally grap the channel lock */
212 ch->state |= ATA_STALL_QUEUE;
213 lockmgr(&ch->state_mtx, LK_RELEASE);
215 /* reset the controller HW, the channel and device(s) */
218 /* reinit the children and delete any that fails */
219 if (!device_get_children(dev, &children, &nchildren)) {
221 for (i = 0; i < nchildren; i++) {
222 /* did any children go missing ? */
223 if (children[i] && device_is_attached(children[i]) &&
224 ATA_REINIT(children[i])) {
226 * if we had a running request and its device matches
227 * this child we need to inform the request that the
230 if (request && request->dev == children[i]) {
231 request->result = ENXIO;
232 device_printf(request->dev, "FAILURE - device detached\n");
234 /* if not timeout finish request here */
235 if (!(request->flags & ATA_R_TIMEOUT))
239 device_delete_child(dev, children[i]);
242 kfree(children, M_TEMP);
246 /* if we still have a good request put it on the queue again */
247 if (request && !(request->flags & ATA_R_TIMEOUT)) {
248 device_printf(request->dev,
249 "WARNING - %s requeued due to channel reset",
250 ata_cmd2str(request));
251 if (!(request->flags & (ATA_R_ATAPI | ATA_R_CONTROL)))
252 kprintf(" LBA=%ju", request->u.ata.lba);
254 request->flags |= ATA_R_REQUEUE;
255 ata_queue_request(request);
258 /* we're done release the channel for new work */
259 lockmgr(&ch->state_mtx, LK_EXCLUSIVE);
260 ch->state = ATA_IDLE;
261 lockmgr(&ch->state_mtx, LK_RELEASE);
262 ATA_LOCKING(dev, ATA_LF_UNLOCK);
265 device_printf(dev, "reinit done ..\n");
267 /* kick off requests on the queue */
273 ata_suspend(device_t dev)
275 struct ata_channel *ch;
277 /* check for valid device */
278 if (!dev || !(ch = device_get_softc(dev)))
281 /* wait for the channel to be IDLE or detached before suspending */
283 lockmgr(&ch->state_mtx, LK_EXCLUSIVE);
284 if (ch->state == ATA_IDLE) {
285 ch->state = ATA_ACTIVE;
286 lockmgr(&ch->state_mtx, LK_RELEASE);
289 lockmgr(&ch->state_mtx, LK_RELEASE);
290 tsleep(ch, 0, "atasusp", hz/10);
292 ATA_LOCKING(dev, ATA_LF_UNLOCK);
297 ata_resume(device_t dev)
301 /* check for valid device */
302 if (!dev || !device_get_softc(dev))
305 /* reinit the devices, we dont know what mode/state they are in */
306 error = ata_reinit(dev);
308 /* kick off requests on the queue */
314 ata_interrupt(void *data)
316 struct ata_channel *ch = (struct ata_channel *)data;
317 struct ata_request *request;
319 lockmgr(&ch->state_mtx, LK_EXCLUSIVE);
322 * Ignore interrupt if its not for us. This may also have the
323 * side effect of processing events unrelated to I/O requests.
325 if (ch->hw.status && !ch->hw.status(ch->dev))
329 * Check if we have a running request, and make sure it has been
330 * completely queued. Otherwise the channel status may indicate
331 * not-busy when, in fact, the command had not yet been issued.
333 if ((request = ch->running) == NULL)
335 if ((request->flags & ATA_R_HWCMDQUEUED) == 0) {
336 kprintf("ata_interrupt: early interrupt\n");
340 ATA_DEBUG_RQ(request, "interrupt");
342 /* safetycheck for the right state */
343 if (ch->state == ATA_IDLE) {
344 device_printf(request->dev, "interrupt on idle channel ignored\n");
349 * we have the HW locks, so end the transaction for this request
350 * if it finishes immediately otherwise wait for next interrupt
352 if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
354 if (ch->state == ATA_ACTIVE)
355 ch->state = ATA_IDLE;
356 lockmgr(&ch->state_mtx, LK_RELEASE);
357 ATA_LOCKING(ch->dev, ATA_LF_UNLOCK);
362 lockmgr(&ch->state_mtx, LK_RELEASE);
367 * device related interfaces
370 ata_ioctl(struct dev_ioctl_args *ap)
372 device_t device, *children;
373 struct ata_ioc_devices *devices = (struct ata_ioc_devices *)ap->a_data;
374 int *value = (int *)ap->a_data;
375 int i, nchildren, error = ENOTTY;
378 case IOCATAGMAXCHANNEL:
379 /* In case we have channel 0..n this will return n+1. */
380 *value = devclass_get_maxunit(ata_devclass);
385 if (*value >= devclass_get_maxunit(ata_devclass) ||
386 !(device = devclass_get_device(ata_devclass, *value)))
388 error = ata_reinit(device);
393 if (*value >= devclass_get_maxunit(ata_devclass) ||
394 !(device = devclass_get_device(ata_devclass, *value)))
396 /* XXX SOS should enable channel HW on controller */
397 error = ata_attach(device);
401 if (*value >= devclass_get_maxunit(ata_devclass) ||
402 !(device = devclass_get_device(ata_devclass, *value)))
404 error = ata_detach(device);
405 /* XXX SOS should disable channel HW on controller */
409 if (devices->channel >= devclass_get_maxunit(ata_devclass) ||
410 !(device = devclass_get_device(ata_devclass, devices->channel)))
412 bzero(devices->name[0], 32);
413 bzero(&devices->params[0], sizeof(struct ata_params));
414 bzero(devices->name[1], 32);
415 bzero(&devices->params[1], sizeof(struct ata_params));
416 if (!device_get_children(device, &children, &nchildren)) {
417 for (i = 0; i < nchildren; i++) {
418 if (children[i] && device_is_attached(children[i])) {
419 struct ata_device *atadev = device_get_softc(children[i]);
421 if (atadev->unit == ATA_MASTER) {
422 strncpy(devices->name[0],
423 device_get_nameunit(children[i]), 32);
424 bcopy(&atadev->param, &devices->params[0],
425 sizeof(struct ata_params));
427 if (atadev->unit == ATA_SLAVE) {
428 strncpy(devices->name[1],
429 device_get_nameunit(children[i]), 32);
430 bcopy(&atadev->param, &devices->params[1],
431 sizeof(struct ata_params));
435 kfree(children, M_TEMP);
443 if (ata_raid_ioctl_func)
444 error = ata_raid_ioctl_func(ap->a_cmd, ap->a_data);
450 ata_device_ioctl(device_t dev, u_long cmd, caddr_t data)
452 struct ata_device *atadev = device_get_softc(dev);
453 struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data;
454 struct ata_params *params = (struct ata_params *)data;
455 int *mode = (int *)data;
456 struct ata_request *request;
462 if (!(buf = kmalloc(ioc_request->count, M_ATA, M_WAITOK | M_NULLOK))) {
465 if (!(request = ata_alloc_request())) {
469 request->dev = atadev->dev;
470 if (ioc_request->flags & ATA_CMD_WRITE) {
471 error = copyin(ioc_request->data, buf, ioc_request->count);
474 ata_free_request(request);
478 if (ioc_request->flags & ATA_CMD_ATAPI) {
479 request->flags = ATA_R_ATAPI;
480 bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16);
483 request->u.ata.command = ioc_request->u.ata.command;
484 request->u.ata.feature = ioc_request->u.ata.feature;
485 request->u.ata.lba = ioc_request->u.ata.lba;
486 request->u.ata.count = ioc_request->u.ata.count;
488 request->timeout = ioc_request->timeout;
490 request->bytecount = ioc_request->count;
491 request->transfersize = request->bytecount;
492 if (ioc_request->flags & ATA_CMD_CONTROL)
493 request->flags |= ATA_R_CONTROL;
494 if (ioc_request->flags & ATA_CMD_READ)
495 request->flags |= ATA_R_READ;
496 if (ioc_request->flags & ATA_CMD_WRITE)
497 request->flags |= ATA_R_WRITE;
498 ata_queue_request(request);
499 if (request->flags & ATA_R_ATAPI) {
500 bcopy(&request->u.atapi.sense, &ioc_request->u.atapi.sense,
501 sizeof(struct atapi_sense));
504 ioc_request->u.ata.command = request->u.ata.command;
505 ioc_request->u.ata.feature = request->u.ata.feature;
506 ioc_request->u.ata.lba = request->u.ata.lba;
507 ioc_request->u.ata.count = request->u.ata.count;
509 ioc_request->error = request->result;
510 if (ioc_request->flags & ATA_CMD_READ)
511 error = copyout(buf, ioc_request->data, ioc_request->count);
515 ata_free_request(request);
519 ata_getparam(atadev, 0);
520 bcopy(&atadev->param, params, sizeof(struct ata_params));
524 atadev->mode = *mode;
525 ATA_SETMODE(device_get_parent(dev), dev);
529 *mode = atadev->mode;
531 case IOCATASSPINDOWN:
532 atadev->spindown = *mode;
534 case IOCATAGSPINDOWN:
535 *mode = atadev->spindown;
545 ata_boot_attach(void)
547 struct ata_channel *ch;
552 /* kick of probe and attach on all channels */
553 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
554 if ((ch = devclass_get_softc(ata_devclass, ctlr))) {
555 ata_identify(ch->dev);
565 ata_print_cable(device_t dev, u_int8_t *who)
568 "DMA limited to UDMA33, %s found non-ATA66 cable\n", who);
572 * misc support functions
575 ata_add_child(device_t parent, struct ata_device *atadev, int unit)
579 if ((child = device_add_child(parent, NULL, unit))) {
580 device_set_softc(child, atadev);
583 atadev->max_iosize = DEV_BSIZE;
584 atadev->mode = ATA_PIO_MAX;
590 ata_getparam(struct ata_device *atadev, int init)
592 struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev));
593 struct ata_request *request;
594 u_int8_t command = 0;
595 int error = ENOMEM, retries = 2;
597 if (ch->devices & (ATA_ATA_MASTER << atadev->unit))
598 command = ATA_ATA_IDENTIFY;
599 if (ch->devices & (ATA_ATAPI_MASTER << atadev->unit))
600 command = ATA_ATAPI_IDENTIFY;
604 while (retries-- > 0 && error) {
605 if (!(request = ata_alloc_request()))
607 request->dev = atadev->dev;
608 request->timeout = 1;
609 request->retries = 0;
610 request->u.ata.command = command;
611 request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT|ATA_R_QUIET);
612 request->data = (void *)&atadev->param;
613 request->bytecount = sizeof(struct ata_params);
614 request->donecount = 0;
615 request->transfersize = DEV_BSIZE;
616 ata_queue_request(request);
617 error = request->result;
618 ata_free_request(request);
621 if (!error && (isprint(atadev->param.model[0]) ||
622 isprint(atadev->param.model[1]))) {
623 struct ata_params *atacap = &atadev->param;
626 for (ptr = (int16_t *)atacap;
627 ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) {
628 *ptr = le16toh(*ptr);
630 if (!(!strncmp(atacap->model, "FX", 2) ||
631 !strncmp(atacap->model, "NEC", 3) ||
632 !strncmp(atacap->model, "Pioneer", 7) ||
633 !strncmp(atacap->model, "SHARP", 5))) {
634 bswap(atacap->model, sizeof(atacap->model));
635 bswap(atacap->revision, sizeof(atacap->revision));
636 bswap(atacap->serial, sizeof(atacap->serial));
638 btrim(atacap->model, sizeof(atacap->model));
639 bpack(atacap->model, atacap->model, sizeof(atacap->model));
640 btrim(atacap->revision, sizeof(atacap->revision));
641 bpack(atacap->revision, atacap->revision, sizeof(atacap->revision));
642 btrim(atacap->serial, sizeof(atacap->serial));
643 bpack(atacap->serial, atacap->serial, sizeof(atacap->serial));
646 kprintf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n",
647 device_get_unit(ch->dev),
648 ata_unit2str(atadev),
649 ata_mode2str(ata_pmode(atacap)),
650 ata_mode2str(ata_wmode(atacap)),
651 ata_mode2str(ata_umode(atacap)),
652 (atacap->hwres & ATA_CABLE_ID) ? "80":"40");
657 ksprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision);
658 device_set_desc_copy(atadev->dev, buffer);
659 if ((atadev->param.config & ATA_PROTO_ATAPI) &&
660 (atadev->param.config != ATA_CFA_MAGIC1) &&
661 (atadev->param.config != ATA_CFA_MAGIC2)) {
662 if (atapi_dma && ch->dma &&
663 (atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR &&
664 ata_umode(&atadev->param) >= ATA_UDMA2)
665 atadev->mode = ATA_DMA_MAX;
668 if (ata_dma && ch->dma &&
669 (ata_umode(&atadev->param) > 0 ||
670 ata_wmode(&atadev->param) > 0))
671 atadev->mode = ATA_DMA_MAX;
683 ata_identify(device_t dev)
685 struct ata_channel *ch = device_get_softc(dev);
686 struct ata_device *atadev;
691 device_printf(dev, "identify ch->devices=%08x\n", ch->devices);
693 for (i = 0; i < ATA_PM; ++i) {
694 if (ch->devices & (((ATA_ATA_MASTER | ATA_ATAPI_MASTER) << i))) {
697 if (!(atadev = kmalloc(sizeof(struct ata_device),
698 M_ATA, M_INTWAIT | M_ZERO))) {
699 device_printf(dev, "out of memory\n");
704 if (ch->devices & ((ATA_ATA_MASTER << i)))
705 unit = (device_get_unit(dev) << 1) + i;
707 if ((child = ata_add_child(dev, atadev, unit))) {
708 if (ata_getparam(atadev, 1)) {
709 device_delete_child(dev, child);
710 kfree(atadev, M_ATA);
714 kfree(atadev, M_ATA);
717 bus_generic_probe(dev);
718 bus_generic_attach(dev);
723 ata_default_registers(device_t dev)
725 struct ata_channel *ch = device_get_softc(dev);
727 /* fill in the defaults from whats setup already */
728 ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
729 ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
730 ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
731 ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
732 ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
733 ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
734 ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
735 ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
739 ata_modify_if_48bit(struct ata_request *request)
741 struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
742 struct ata_device *atadev = device_get_softc(request->dev);
744 atadev->flags &= ~ATA_D_48BIT_ACTIVE;
746 if (((request->u.ata.lba + request->u.ata.count) >= ATA_MAX_28BIT_LBA ||
747 request->u.ata.count > 256) &&
748 atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
750 /* translate command into 48bit version */
751 switch (request->u.ata.command) {
753 request->u.ata.command = ATA_READ48;
756 request->u.ata.command = ATA_READ_MUL48;
759 if (ch->flags & ATA_NO_48BIT_DMA) {
760 if (request->transfersize > DEV_BSIZE)
761 request->u.ata.command = ATA_READ_MUL48;
763 request->u.ata.command = ATA_READ48;
764 request->flags &= ~ATA_R_DMA;
767 request->u.ata.command = ATA_READ_DMA48;
769 case ATA_READ_DMA_QUEUED:
770 if (ch->flags & ATA_NO_48BIT_DMA) {
771 if (request->transfersize > DEV_BSIZE)
772 request->u.ata.command = ATA_READ_MUL48;
774 request->u.ata.command = ATA_READ48;
775 request->flags &= ~ATA_R_DMA;
778 request->u.ata.command = ATA_READ_DMA_QUEUED48;
781 request->u.ata.command = ATA_WRITE48;
784 request->u.ata.command = ATA_WRITE_MUL48;
787 if (ch->flags & ATA_NO_48BIT_DMA) {
788 if (request->transfersize > DEV_BSIZE)
789 request->u.ata.command = ATA_WRITE_MUL48;
791 request->u.ata.command = ATA_WRITE48;
792 request->flags &= ~ATA_R_DMA;
795 request->u.ata.command = ATA_WRITE_DMA48;
797 case ATA_WRITE_DMA_QUEUED:
798 if (ch->flags & ATA_NO_48BIT_DMA) {
799 if (request->transfersize > DEV_BSIZE)
800 request->u.ata.command = ATA_WRITE_MUL48;
802 request->u.ata.command = ATA_WRITE48;
803 request->u.ata.command = ATA_WRITE48;
804 request->flags &= ~ATA_R_DMA;
807 request->u.ata.command = ATA_WRITE_DMA_QUEUED48;
810 request->u.ata.command = ATA_FLUSHCACHE48;
812 case ATA_READ_NATIVE_MAX_ADDRESS:
813 request->u.ata.command = ATA_READ_NATIVE_MAX_ADDRESS48;
815 case ATA_SET_MAX_ADDRESS:
816 request->u.ata.command = ATA_SET_MAX_ADDRESS48;
821 atadev->flags |= ATA_D_48BIT_ACTIVE;
826 ata_udelay(int interval)
829 * We can't use tsleep here, because we might be called from callout
832 if (1 || interval < (1000000/hz))
835 tsleep(&interval, 0, "ataslp", 1 + interval / (1000000 / hz));
839 ata_unit2str(struct ata_device *atadev)
843 ksprintf(str, "%s", atadev->unit == ATA_MASTER ? "master" : "slave");
848 ata_mode2str(int mode)
851 case -1: return "UNSUPPORTED";
852 case ATA_PIO0: return "PIO0";
853 case ATA_PIO1: return "PIO1";
854 case ATA_PIO2: return "PIO2";
855 case ATA_PIO3: return "PIO3";
856 case ATA_PIO4: return "PIO4";
857 case ATA_WDMA0: return "WDMA0";
858 case ATA_WDMA1: return "WDMA1";
859 case ATA_WDMA2: return "WDMA2";
860 case ATA_UDMA0: return "UDMA16";
861 case ATA_UDMA1: return "UDMA25";
862 case ATA_UDMA2: return "UDMA33";
863 case ATA_UDMA3: return "UDMA40";
864 case ATA_UDMA4: return "UDMA66";
865 case ATA_UDMA5: return "UDMA100";
866 case ATA_UDMA6: return "UDMA133";
867 case ATA_SA150: return "SATA150";
868 case ATA_SA300: return "SATA300";
869 case ATA_USB: return "USB";
870 case ATA_USB1: return "USB1";
871 case ATA_USB2: return "USB2";
873 if (mode & ATA_DMA_MASK)
881 ata_atapi(device_t dev)
883 struct ata_channel *ch = device_get_softc(device_get_parent(dev));
884 struct ata_device *atadev = device_get_softc(dev);
886 return ((atadev->unit == ATA_MASTER && ch->devices & ATA_ATAPI_MASTER) ||
887 (atadev->unit == ATA_SLAVE && ch->devices & ATA_ATAPI_SLAVE));
891 ata_pmode(struct ata_params *ap)
893 if (ap->atavalid & ATA_FLAG_64_70) {
894 if (ap->apiomodes & 0x02)
896 if (ap->apiomodes & 0x01)
899 if (ap->mwdmamodes & 0x04)
901 if (ap->mwdmamodes & 0x02)
903 if (ap->mwdmamodes & 0x01)
905 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
907 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
909 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
915 ata_wmode(struct ata_params *ap)
917 if (ap->mwdmamodes & 0x04)
919 if (ap->mwdmamodes & 0x02)
921 if (ap->mwdmamodes & 0x01)
927 ata_umode(struct ata_params *ap)
929 if (ap->atavalid & ATA_FLAG_88) {
930 if (ap->udmamodes & 0x40)
932 if (ap->udmamodes & 0x20)
934 if (ap->udmamodes & 0x10)
936 if (ap->udmamodes & 0x08)
938 if (ap->udmamodes & 0x04)
940 if (ap->udmamodes & 0x02)
942 if (ap->udmamodes & 0x01)
949 ata_limit_mode(device_t dev, int mode, int maxmode)
951 struct ata_device *atadev = device_get_softc(dev);
953 if (maxmode && mode > maxmode)
956 if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0)
957 return min(mode, ata_umode(&atadev->param));
959 if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0)
960 return min(mode, ata_wmode(&atadev->param));
962 if (mode > ata_pmode(&atadev->param))
963 return min(mode, ata_pmode(&atadev->param));
969 bswap(int8_t *buf, int len)
971 u_int16_t *ptr = (u_int16_t*)(buf + len);
973 while (--ptr >= (u_int16_t*)buf)
978 btrim(int8_t *buf, int len)
982 for (ptr = buf; ptr < buf+len; ++ptr)
983 if (!*ptr || *ptr == '_')
985 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
990 bpack(int8_t *src, int8_t *dst, int len)
994 for (i = j = blank = 0 ; i < len; i++) {
995 if (blank && src[i] == ' ') continue;
996 if (blank && src[i] != ' ') {
1001 if (src[i] == ' ') {
1017 ata_module_event_handler(module_t mod, int what, void *arg)
1019 /* static because we need the reference at destruction time */
1020 static cdev_t atacdev;
1024 /* register controlling device */
1025 atacdev = make_dev(&ata_ops, 0, UID_ROOT, GID_OPERATOR, 0600, "ata");
1026 reference_dev(atacdev);
1030 /* deregister controlling device */
1031 destroy_dev(atacdev);
1032 dev_ops_remove_all(&ata_ops);
1040 static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
1041 DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
1042 MODULE_VERSION(ata, 1);
1045 * Construct a completely zero'ed ata_request. On objcache_put(), an
1046 * ata_request object is also zero'ed, so objcache_get() is guaranteed to give
1047 * completely zero'ed objects without spending too much time.
1050 ata_request_cache_ctor(void *obj, void *private, int ocflags)
1052 struct ata_request *arp = obj;
1054 bzero(arp, sizeof(struct ata_request));
1059 * Construct a completely zero'ed ata_composite. On objcache_put(), an
1060 * ata_composite object is also zero'ed, so objcache_get() is guaranteed to give
1061 * completely zero'ed objects without spending too much time.
1064 ata_composite_cache_ctor(void *obj, void *private, int ocflags)
1066 struct ata_composite *acp = obj;
1068 bzero(acp, sizeof(struct ata_composite));
1075 ata_request_cache = objcache_create("ata_request", 0, 0,
1076 ata_request_cache_ctor, NULL, NULL,
1077 objcache_malloc_alloc,
1078 objcache_malloc_free,
1079 &ata_request_malloc_args);
1080 ata_composite_cache = objcache_create("ata_composite", 0, 0,
1081 ata_composite_cache_ctor, NULL, NULL,
1082 objcache_malloc_alloc,
1083 objcache_malloc_free,
1084 &ata_composite_malloc_args);
1086 SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
1091 objcache_destroy(ata_composite_cache);
1092 objcache_destroy(ata_request_cache);
1094 SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);