2 * Copyright (c) 1998 - 2006 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 $
27 * $DragonFly: src/sys/dev/disk/nata/ata-all.c,v 1.14 2008/03/24 06:41:56 dillon Exp $
32 #include <sys/param.h>
34 #include <sys/callout.h>
36 #include <sys/ctype.h>
37 #include <sys/device.h>
38 #include <sys/endian.h>
39 #include <sys/kernel.h>
40 #include <sys/libkern.h>
41 #include <sys/lock.h> /* for {get,rel}_mplock() */
42 #include <sys/malloc.h>
43 #include <sys/module.h>
45 #include <sys/objcache.h>
46 #include <sys/queue.h>
47 #include <sys/sysctl.h>
48 #include <sys/systm.h>
50 #include <sys/spinlock2.h>
51 #include <sys/mplock2.h>
56 /* device structure */
57 static d_ioctl_t ata_ioctl;
58 static struct dev_ops ata_ops = {
67 static void ata_boot_attach(void);
69 static device_t ata_add_child(device_t, struct ata_device *, int);
70 static int ata_getparam(struct ata_device *, int);
71 static void bswap(int8_t *, int);
72 static void btrim(int8_t *, int);
73 static void bpack(int8_t *, int8_t *, int);
76 MALLOC_DEFINE(M_ATA, "ata_generic", "ATA driver generic layer");
77 int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL;
78 devclass_t ata_devclass;
79 struct objcache *ata_request_cache;
80 struct objcache *ata_composite_cache;
81 struct objcache_malloc_args ata_request_malloc_args = {
82 sizeof(struct ata_request), M_ATA };
83 struct objcache_malloc_args ata_composite_malloc_args = {
84 sizeof(struct ata_composite), M_ATA };
88 static int ata_dma = 1;
89 static int atapi_dma = 1;
92 SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
93 TUNABLE_INT("hw.ata.ata_dma", &ata_dma);
94 SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RW, &ata_dma, 0,
95 "ATA disk DMA mode control");
96 TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma);
97 SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RW, &atapi_dma, 0,
98 "ATAPI device DMA mode control");
99 TUNABLE_INT("hw.ata.wc", &ata_wc);
100 SYSCTL_INT(_hw_ata, OID_AUTO, ata_wc, CTLFLAG_RW, &ata_wc, 0,
101 "ATA disk write caching");
104 * newbus device interface related functions
107 ata_probe(device_t dev)
113 ata_attach(device_t dev)
115 struct ata_channel *ch = device_get_softc(dev);
118 /* check that we have a virgin channel to attach */
122 /* initialize the softc basics */
124 ch->state = ATA_IDLE;
125 spin_init(&ch->state_mtx);
126 spin_init(&ch->queue_mtx);
129 /* reset the controller HW, the channel and device(s) */
130 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
131 tsleep(&error, 0, "ataatch", 1);
133 ATA_LOCKING(dev, ATA_LF_UNLOCK);
135 /* setup interrupt delivery */
137 ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
138 RF_SHAREABLE | RF_ACTIVE);
140 device_printf(dev, "unable to allocate interrupt\n");
143 if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS,
144 (driver_intr_t *)ata_interrupt, ch, &ch->ih,
146 device_printf(dev, "unable to setup interrupt\n");
150 /* probe and attach devices on this channel unless we are in early boot */
156 ata_detach(device_t dev)
158 struct ata_channel *ch = device_get_softc(dev);
162 /* check that we have a valid channel to detach */
166 /* grap the channel lock so no new requests gets launched */
167 spin_lock(&ch->state_mtx);
168 ch->state |= ATA_STALL_QUEUE;
169 spin_unlock(&ch->state_mtx);
171 /* detach & delete all children */
172 if (!device_get_children(dev, &children, &nchildren)) {
173 for (i = 0; i < nchildren; i++)
175 device_delete_child(dev, children[i]);
176 kfree(children, M_TEMP);
179 /* release resources */
180 bus_teardown_intr(dev, ch->r_irq, ch->ih);
181 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
183 spin_uninit(&ch->state_mtx);
184 spin_uninit(&ch->queue_mtx);
189 ata_reinit(device_t dev)
191 struct ata_channel *ch = device_get_softc(dev);
192 struct ata_request *request;
196 /* check that we have a valid channel to reinit */
197 if (!ch || !ch->r_irq)
201 device_printf(dev, "reiniting channel ..\n");
203 /* poll for locking the channel */
204 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
205 tsleep(&dev, 0, "atarini", 1);
207 /* catch eventual request in ch->running */
208 spin_lock(&ch->state_mtx);
209 if ((request = ch->running))
210 callout_stop(&request->callout);
213 /* unconditionally grap the channel lock */
214 ch->state |= ATA_STALL_QUEUE;
215 spin_unlock(&ch->state_mtx);
217 /* reset the controller HW, the channel and device(s) */
220 /* reinit the children and delete any that fails */
221 if (!device_get_children(dev, &children, &nchildren)) {
223 for (i = 0; i < nchildren; i++) {
224 /* did any children go missing ? */
225 if (children[i] && device_is_attached(children[i]) &&
226 ATA_REINIT(children[i])) {
228 * if we had a running request and its device matches
229 * this child we need to inform the request that the
232 if (request && request->dev == children[i]) {
233 request->result = ENXIO;
234 device_printf(request->dev, "FAILURE - device detached\n");
236 /* if not timeout finish request here */
237 if (!(request->flags & ATA_R_TIMEOUT))
241 device_delete_child(dev, children[i]);
244 kfree(children, M_TEMP);
248 /* if we still have a good request put it on the queue again */
249 if (request && !(request->flags & ATA_R_TIMEOUT)) {
250 device_printf(request->dev,
251 "WARNING - %s requeued due to channel reset",
252 ata_cmd2str(request));
253 if (!(request->flags & (ATA_R_ATAPI | ATA_R_CONTROL)))
254 kprintf(" LBA=%ju", request->u.ata.lba);
256 request->flags |= ATA_R_REQUEUE;
257 ata_queue_request(request);
260 /* we're done release the channel for new work */
261 spin_lock(&ch->state_mtx);
262 ch->state = ATA_IDLE;
263 spin_unlock(&ch->state_mtx);
264 ATA_LOCKING(dev, ATA_LF_UNLOCK);
267 device_printf(dev, "reinit done ..\n");
269 /* kick off requests on the queue */
275 ata_suspend(device_t dev)
277 struct ata_channel *ch;
279 /* check for valid device */
280 if (!dev || !(ch = device_get_softc(dev)))
283 /* wait for the channel to be IDLE or detached before suspending */
285 spin_lock(&ch->state_mtx);
286 if (ch->state == ATA_IDLE) {
287 ch->state = ATA_ACTIVE;
288 spin_unlock(&ch->state_mtx);
291 spin_unlock(&ch->state_mtx);
292 tsleep(ch, 0, "atasusp", hz/10);
294 ATA_LOCKING(dev, ATA_LF_UNLOCK);
299 ata_resume(device_t dev)
301 struct ata_channel *ch;
304 /* check for valid device */
305 if (!dev || !(ch = device_get_softc(dev)))
308 /* reinit the devices, we dont know what mode/state they are in */
309 error = ata_reinit(dev);
311 /* kick off requests on the queue */
317 ata_interrupt(void *data)
319 struct ata_channel *ch = (struct ata_channel *)data;
320 struct ata_request *request;
322 spin_lock(&ch->state_mtx);
325 * Ignore interrupt if its not for us. This may also have the
326 * side effect of processing events unrelated to I/O requests.
328 if (ch->hw.status && !ch->hw.status(ch->dev))
332 * Check if we have a running request, and make sure it has been
333 * completely queued. Otherwise the channel status may indicate
334 * not-busy when, in fact, the command had not yet been issued.
336 if ((request = ch->running) == NULL)
338 if ((request->flags & ATA_R_HWCMDQUEUED) == 0) {
339 kprintf("ata_interrupt: early interrupt\n");
343 ATA_DEBUG_RQ(request, "interrupt");
345 /* safetycheck for the right state */
346 if (ch->state == ATA_IDLE) {
347 device_printf(request->dev, "interrupt on idle channel ignored\n");
352 * we have the HW locks, so end the transaction for this request
353 * if it finishes immediately otherwise wait for next interrupt
355 if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
357 if (ch->state == ATA_ACTIVE)
358 ch->state = ATA_IDLE;
359 spin_unlock(&ch->state_mtx);
360 ATA_LOCKING(ch->dev, ATA_LF_UNLOCK);
365 spin_unlock(&ch->state_mtx);
370 * device related interfaces
373 ata_ioctl(struct dev_ioctl_args *ap)
375 device_t device, *children;
376 struct ata_ioc_devices *devices = (struct ata_ioc_devices *)ap->a_data;
377 int *value = (int *)ap->a_data;
378 int i, nchildren, error = ENOTTY;
381 case IOCATAGMAXCHANNEL:
382 *value = devclass_get_maxunit(ata_devclass);
387 if (*value > devclass_get_maxunit(ata_devclass) ||
388 !(device = devclass_get_device(ata_devclass, *value)))
390 error = ata_reinit(device);
395 if (*value > devclass_get_maxunit(ata_devclass) ||
396 !(device = devclass_get_device(ata_devclass, *value)))
398 /* XXX SOS should enable channel HW on controller */
399 error = ata_attach(device);
403 if (*value > devclass_get_maxunit(ata_devclass) ||
404 !(device = devclass_get_device(ata_devclass, *value)))
406 error = ata_detach(device);
407 /* XXX SOS should disable channel HW on controller */
411 if (devices->channel > devclass_get_maxunit(ata_devclass) ||
412 !(device = devclass_get_device(ata_devclass, devices->channel)))
414 bzero(devices->name[0], 32);
415 bzero(&devices->params[0], sizeof(struct ata_params));
416 bzero(devices->name[1], 32);
417 bzero(&devices->params[1], sizeof(struct ata_params));
418 if (!device_get_children(device, &children, &nchildren)) {
419 for (i = 0; i < nchildren; i++) {
420 if (children[i] && device_is_attached(children[i])) {
421 struct ata_device *atadev = device_get_softc(children[i]);
423 if (atadev->unit == ATA_MASTER) {
424 strncpy(devices->name[0],
425 device_get_nameunit(children[i]), 32);
426 bcopy(&atadev->param, &devices->params[0],
427 sizeof(struct ata_params));
429 if (atadev->unit == ATA_SLAVE) {
430 strncpy(devices->name[1],
431 device_get_nameunit(children[i]), 32);
432 bcopy(&atadev->param, &devices->params[1],
433 sizeof(struct ata_params));
437 kfree(children, M_TEMP);
445 if (ata_raid_ioctl_func)
446 error = ata_raid_ioctl_func(ap->a_cmd, ap->a_data);
452 ata_device_ioctl(device_t dev, u_long cmd, caddr_t data)
454 struct ata_device *atadev = device_get_softc(dev);
455 struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data;
456 struct ata_params *params = (struct ata_params *)data;
457 int *mode = (int *)data;
458 struct ata_request *request;
464 if (!(buf = kmalloc(ioc_request->count, M_ATA, M_WAITOK | M_NULLOK))) {
467 if (!(request = ata_alloc_request())) {
471 if (ioc_request->flags & ATA_CMD_WRITE) {
472 error = copyin(ioc_request->data, buf, ioc_request->count);
475 ata_free_request(request);
480 if (ioc_request->flags & ATA_CMD_ATAPI) {
481 request->flags = ATA_R_ATAPI;
482 bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16);
485 request->u.ata.command = ioc_request->u.ata.command;
486 request->u.ata.feature = ioc_request->u.ata.feature;
487 request->u.ata.lba = ioc_request->u.ata.lba;
488 request->u.ata.count = ioc_request->u.ata.count;
490 request->timeout = ioc_request->timeout;
492 request->bytecount = ioc_request->count;
493 request->transfersize = request->bytecount;
494 if (ioc_request->flags & ATA_CMD_CONTROL)
495 request->flags |= ATA_R_CONTROL;
496 if (ioc_request->flags & ATA_CMD_READ)
497 request->flags |= ATA_R_READ;
498 if (ioc_request->flags & ATA_CMD_WRITE)
499 request->flags |= ATA_R_WRITE;
500 ata_queue_request(request);
501 if (request->flags & ATA_R_ATAPI) {
502 bcopy(&request->u.atapi.sense, &ioc_request->u.atapi.sense,
503 sizeof(struct atapi_sense));
506 ioc_request->u.ata.command = request->u.ata.command;
507 ioc_request->u.ata.feature = request->u.ata.feature;
508 ioc_request->u.ata.lba = request->u.ata.lba;
509 ioc_request->u.ata.count = request->u.ata.count;
511 ioc_request->error = request->result;
512 if (ioc_request->flags & ATA_CMD_READ)
513 error = copyout(buf, ioc_request->data, ioc_request->count);
517 ata_free_request(request);
521 ata_getparam(atadev, 0);
522 bcopy(&atadev->param, params, sizeof(struct ata_params));
526 atadev->mode = *mode;
527 ATA_SETMODE(device_get_parent(dev), dev);
531 *mode = atadev->mode;
541 ata_boot_attach(void)
543 struct ata_channel *ch;
548 /* kick of probe and attach on all channels */
549 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
550 if ((ch = devclass_get_softc(ata_devclass, ctlr))) {
551 ata_identify(ch->dev);
562 * misc support functions
565 ata_add_child(device_t parent, struct ata_device *atadev, int unit)
569 if ((child = device_add_child(parent, NULL, unit))) {
570 device_set_softc(child, atadev);
573 atadev->max_iosize = DEV_BSIZE;
574 atadev->mode = ATA_PIO_MAX;
580 ata_getparam(struct ata_device *atadev, int init)
582 struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev));
583 struct ata_request *request;
584 u_int8_t command = 0;
585 int error = ENOMEM, retries = 2;
588 (atadev->unit == ATA_MASTER ? ATA_ATA_MASTER : ATA_ATA_SLAVE))
589 command = ATA_ATA_IDENTIFY;
591 (atadev->unit == ATA_MASTER ? ATA_ATAPI_MASTER : ATA_ATAPI_SLAVE))
592 command = ATA_ATAPI_IDENTIFY;
596 while (retries-- > 0 && error) {
597 if (!(request = ata_alloc_request()))
599 request->dev = atadev->dev;
600 request->timeout = 1;
601 request->retries = 0;
602 request->u.ata.command = command;
603 request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT|ATA_R_QUIET);
604 request->data = (void *)&atadev->param;
605 request->bytecount = sizeof(struct ata_params);
606 request->donecount = 0;
607 request->transfersize = DEV_BSIZE;
608 ata_queue_request(request);
609 error = request->result;
610 ata_free_request(request);
613 if (!error && (isprint(atadev->param.model[0]) ||
614 isprint(atadev->param.model[1]))) {
615 struct ata_params *atacap = &atadev->param;
619 for (ptr = (int16_t *)atacap;
620 ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) {
621 *ptr = le16toh(*ptr);
623 if (!(!strncmp(atacap->model, "FX", 2) ||
624 !strncmp(atacap->model, "NEC", 3) ||
625 !strncmp(atacap->model, "Pioneer", 7) ||
626 !strncmp(atacap->model, "SHARP", 5))) {
627 bswap(atacap->model, sizeof(atacap->model));
628 bswap(atacap->revision, sizeof(atacap->revision));
629 bswap(atacap->serial, sizeof(atacap->serial));
631 btrim(atacap->model, sizeof(atacap->model));
632 bpack(atacap->model, atacap->model, sizeof(atacap->model));
633 btrim(atacap->revision, sizeof(atacap->revision));
634 bpack(atacap->revision, atacap->revision, sizeof(atacap->revision));
635 btrim(atacap->serial, sizeof(atacap->serial));
636 bpack(atacap->serial, atacap->serial, sizeof(atacap->serial));
639 kprintf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n",
640 device_get_unit(ch->dev),
641 atadev->unit == ATA_MASTER ? "master" : "slave",
642 ata_mode2str(ata_pmode(atacap)),
643 ata_mode2str(ata_wmode(atacap)),
644 ata_mode2str(ata_umode(atacap)),
645 (atacap->hwres & ATA_CABLE_ID) ? "80":"40");
648 ksprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision);
649 device_set_desc_copy(atadev->dev, buffer);
650 if ((atadev->param.config & ATA_PROTO_ATAPI) &&
651 (atadev->param.config != ATA_CFA_MAGIC1) &&
652 (atadev->param.config != ATA_CFA_MAGIC2)) {
653 if (atapi_dma && ch->dma &&
654 (atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR &&
655 ata_umode(&atadev->param) >= ATA_UDMA2)
656 atadev->mode = ATA_DMA_MAX;
659 if (ata_dma && ch->dma &&
660 (ata_umode(&atadev->param) > 0 ||
661 ata_wmode(&atadev->param) > 0))
662 atadev->mode = ATA_DMA_MAX;
674 ata_identify(device_t dev)
676 struct ata_channel *ch = device_get_softc(dev);
677 struct ata_device *master = NULL, *slave = NULL;
678 device_t master_child = NULL, slave_child = NULL;
679 int master_unit = -1, slave_unit = -1;
681 if (ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) {
682 if (!(master = kmalloc(sizeof(struct ata_device),
683 M_ATA, M_INTWAIT | M_ZERO))) {
684 device_printf(dev, "out of memory\n");
687 master->unit = ATA_MASTER;
689 if (ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) {
690 if (!(slave = kmalloc(sizeof(struct ata_device),
691 M_ATA, M_INTWAIT | M_ZERO))) {
692 kfree(master, M_ATA);
693 device_printf(dev, "out of memory\n");
696 slave->unit = ATA_SLAVE;
700 if (ch->devices & ATA_ATA_MASTER)
701 master_unit = (device_get_unit(dev) << 1);
703 if (master && !(master_child = ata_add_child(dev, master, master_unit))) {
704 kfree(master, M_ATA);
708 if (ch->devices & ATA_ATA_SLAVE)
709 slave_unit = (device_get_unit(dev) << 1) + 1;
711 if (slave && !(slave_child = ata_add_child(dev, slave, slave_unit))) {
716 if (slave && ata_getparam(slave, 1)) {
717 device_delete_child(dev, slave_child);
720 if (master && ata_getparam(master, 1)) {
721 device_delete_child(dev, master_child);
722 kfree(master, M_ATA);
725 bus_generic_probe(dev);
726 bus_generic_attach(dev);
731 ata_default_registers(device_t dev)
733 struct ata_channel *ch = device_get_softc(dev);
735 /* fill in the defaults from whats setup already */
736 ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
737 ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
738 ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
739 ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
740 ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
741 ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
742 ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
743 ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
747 ata_modify_if_48bit(struct ata_request *request)
749 struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
750 struct ata_device *atadev = device_get_softc(request->dev);
752 atadev->flags &= ~ATA_D_48BIT_ACTIVE;
754 if ((request->u.ata.lba + request->u.ata.count >= ATA_MAX_28BIT_LBA ||
755 request->u.ata.count > 256) &&
756 atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
758 /* translate command into 48bit version */
759 switch (request->u.ata.command) {
761 request->u.ata.command = ATA_READ48;
764 request->u.ata.command = ATA_READ_MUL48;
767 if (ch->flags & ATA_NO_48BIT_DMA) {
768 if (request->transfersize > DEV_BSIZE)
769 request->u.ata.command = ATA_READ_MUL48;
771 request->u.ata.command = ATA_READ48;
772 request->flags &= ~ATA_R_DMA;
775 request->u.ata.command = ATA_READ_DMA48;
777 case ATA_READ_DMA_QUEUED:
778 if (ch->flags & ATA_NO_48BIT_DMA) {
779 if (request->transfersize > DEV_BSIZE)
780 request->u.ata.command = ATA_READ_MUL48;
782 request->u.ata.command = ATA_READ48;
783 request->flags &= ~ATA_R_DMA;
786 request->u.ata.command = ATA_READ_DMA_QUEUED48;
789 request->u.ata.command = ATA_WRITE48;
792 request->u.ata.command = ATA_WRITE_MUL48;
795 if (ch->flags & ATA_NO_48BIT_DMA) {
796 if (request->transfersize > DEV_BSIZE)
797 request->u.ata.command = ATA_WRITE_MUL48;
799 request->u.ata.command = ATA_WRITE48;
800 request->flags &= ~ATA_R_DMA;
803 request->u.ata.command = ATA_WRITE_DMA48;
805 case ATA_WRITE_DMA_QUEUED:
806 if (ch->flags & ATA_NO_48BIT_DMA) {
807 if (request->transfersize > DEV_BSIZE)
808 request->u.ata.command = ATA_WRITE_MUL48;
810 request->u.ata.command = ATA_WRITE48;
811 request->u.ata.command = ATA_WRITE48;
812 request->flags &= ~ATA_R_DMA;
815 request->u.ata.command = ATA_WRITE_DMA_QUEUED48;
818 request->u.ata.command = ATA_FLUSHCACHE48;
820 case ATA_READ_NATIVE_MAX_ADDDRESS:
821 request->u.ata.command = ATA_READ_NATIVE_MAX_ADDDRESS48;
823 case ATA_SET_MAX_ADDRESS:
824 request->u.ata.command = ATA_SET_MAX_ADDRESS48;
829 atadev->flags |= ATA_D_48BIT_ACTIVE;
834 ata_udelay(int interval)
837 * We can't use tsleep here, because we might be called from callout
840 if (1 || interval < (1000000/hz))
843 tsleep(&interval, 0, "ataslp", 1 + interval / (1000000 / hz));
847 ata_mode2str(int mode)
850 case -1: return "UNSUPPORTED";
851 case ATA_PIO0: return "PIO0";
852 case ATA_PIO1: return "PIO1";
853 case ATA_PIO2: return "PIO2";
854 case ATA_PIO3: return "PIO3";
855 case ATA_PIO4: return "PIO4";
856 case ATA_WDMA0: return "WDMA0";
857 case ATA_WDMA1: return "WDMA1";
858 case ATA_WDMA2: return "WDMA2";
859 case ATA_UDMA0: return "UDMA16";
860 case ATA_UDMA1: return "UDMA25";
861 case ATA_UDMA2: return "UDMA33";
862 case ATA_UDMA3: return "UDMA40";
863 case ATA_UDMA4: return "UDMA66";
864 case ATA_UDMA5: return "UDMA100";
865 case ATA_UDMA6: return "UDMA133";
866 case ATA_SA150: return "SATA150";
867 case ATA_SA300: return "SATA300";
868 case ATA_USB: return "USB";
869 case ATA_USB1: return "USB1";
870 case ATA_USB2: return "USB2";
872 if (mode & ATA_DMA_MASK)
880 ata_pmode(struct ata_params *ap)
882 if (ap->atavalid & ATA_FLAG_64_70) {
883 if (ap->apiomodes & 0x02)
885 if (ap->apiomodes & 0x01)
888 if (ap->mwdmamodes & 0x04)
890 if (ap->mwdmamodes & 0x02)
892 if (ap->mwdmamodes & 0x01)
894 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
896 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
898 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
904 ata_wmode(struct ata_params *ap)
906 if (ap->mwdmamodes & 0x04)
908 if (ap->mwdmamodes & 0x02)
910 if (ap->mwdmamodes & 0x01)
916 ata_umode(struct ata_params *ap)
918 if (ap->atavalid & ATA_FLAG_88) {
919 if (ap->udmamodes & 0x40)
921 if (ap->udmamodes & 0x20)
923 if (ap->udmamodes & 0x10)
925 if (ap->udmamodes & 0x08)
927 if (ap->udmamodes & 0x04)
929 if (ap->udmamodes & 0x02)
931 if (ap->udmamodes & 0x01)
938 ata_limit_mode(device_t dev, int mode, int maxmode)
940 struct ata_device *atadev = device_get_softc(dev);
942 if (maxmode && mode > maxmode)
945 if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0)
946 return min(mode, ata_umode(&atadev->param));
948 if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0)
949 return min(mode, ata_wmode(&atadev->param));
951 if (mode > ata_pmode(&atadev->param))
952 return min(mode, ata_pmode(&atadev->param));
958 bswap(int8_t *buf, int len)
960 u_int16_t *ptr = (u_int16_t*)(buf + len);
962 while (--ptr >= (u_int16_t*)buf)
967 btrim(int8_t *buf, int len)
971 for (ptr = buf; ptr < buf+len; ++ptr)
972 if (!*ptr || *ptr == '_')
974 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
979 bpack(int8_t *src, int8_t *dst, int len)
983 for (i = j = blank = 0 ; i < len; i++) {
984 if (blank && src[i] == ' ') continue;
985 if (blank && src[i] != ' ') {
1006 ata_module_event_handler(module_t mod, int what, void *arg)
1008 /* static because we need the reference at destruction time */
1009 static cdev_t atacdev;
1013 /* register controlling device */
1014 atacdev = make_dev(&ata_ops, 0, UID_ROOT, GID_OPERATOR, 0600, "ata");
1015 reference_dev(atacdev);
1019 /* deregister controlling device */
1020 destroy_dev(atacdev);
1021 dev_ops_remove_all(&ata_ops);
1029 static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
1030 DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
1031 MODULE_VERSION(ata, 1);
1034 * Construct a completely zero'ed ata_request. On objcache_put(), an
1035 * ata_request object is also zero'ed, so objcache_get() is guaranteed to give
1036 * completely zero'ed objects without spending too much time.
1039 ata_request_cache_ctor(void *obj, void *private, int ocflags)
1041 struct ata_request *arp = obj;
1043 bzero(arp, sizeof(struct ata_request));
1048 * Construct a completely zero'ed ata_composite. On objcache_put(), an
1049 * ata_composite object is also zero'ed, so objcache_get() is guaranteed to give
1050 * completely zero'ed objects without spending too much time.
1053 ata_composite_cache_ctor(void *obj, void *private, int ocflags)
1055 struct ata_composite *acp = obj;
1057 bzero(acp, sizeof(struct ata_composite));
1064 ata_request_cache = objcache_create("ata_request", 0, 0,
1065 ata_request_cache_ctor, NULL, NULL,
1066 objcache_malloc_alloc,
1067 objcache_malloc_free,
1068 &ata_request_malloc_args);
1069 ata_composite_cache = objcache_create("ata_composite", 0, 0,
1070 ata_composite_cache_ctor, NULL, NULL,
1071 objcache_malloc_alloc,
1072 objcache_malloc_free,
1073 &ata_composite_malloc_args);
1075 SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
1080 objcache_destroy(ata_composite_cache);
1081 objcache_destroy(ata_request_cache);
1083 SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);