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.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
31 #include <sys/param.h>
32 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/module.h>
36 #include <sys/endian.h>
37 #include <sys/ctype.h>
41 #include <sys/malloc.h>
42 #include <sys/sysctl.h>
44 #include <sys/taskqueue.h>
46 #include <machine/stdarg.h>
47 #include <machine/resource.h>
48 #include <machine/bus.h>
50 #include <dev/ata/ata-all.h>
53 /* device structure */
54 static d_ioctl_t ata_ioctl;
55 static struct cdevsw ata_cdevsw = {
56 .d_version = D_VERSION,
57 .d_flags = D_NEEDGIANT, /* we need this as newbus isn't mpsafe */
63 static void ata_boot_attach(void);
64 static device_t ata_add_child(device_t, struct ata_device *, int);
65 static int ata_getparam(struct ata_device *, int);
66 static void bswap(int8_t *, int);
67 static void btrim(int8_t *, int);
68 static void bpack(int8_t *, int8_t *, int);
71 MALLOC_DEFINE(M_ATA, "ata_generic", "ATA driver generic layer");
72 int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL;
73 struct intr_config_hook *ata_delayed_attach = NULL;
74 devclass_t ata_devclass;
75 uma_zone_t ata_request_zone;
76 uma_zone_t ata_composite_zone;
80 static int ata_dma = 1;
81 static int atapi_dma = 1;
84 SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
85 TUNABLE_INT("hw.ata.ata_dma", &ata_dma);
86 SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0,
87 "ATA disk DMA mode control");
88 TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma);
89 SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0,
90 "ATAPI device DMA mode control");
91 TUNABLE_INT("hw.ata.wc", &ata_wc);
92 SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0,
93 "ATA disk write caching");
96 * newbus device interface related functions
99 ata_probe(device_t dev)
105 ata_attach(device_t dev)
107 struct ata_channel *ch = device_get_softc(dev);
110 /* check that we have a virgin channel to attach */
114 /* initialize the softc basics */
116 ch->state = ATA_IDLE;
117 bzero(&ch->state_mtx, sizeof(struct mtx));
118 mtx_init(&ch->state_mtx, "ATA state lock", NULL, MTX_DEF);
119 bzero(&ch->queue_mtx, sizeof(struct mtx));
120 mtx_init(&ch->queue_mtx, "ATA queue lock", NULL, MTX_DEF);
121 TAILQ_INIT(&ch->ata_queue);
123 /* reset the controller HW, the channel and device(s) */
124 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
125 tsleep(&error, PRIBIO, "ataatch", 1);
127 ATA_LOCKING(dev, ATA_LF_UNLOCK);
129 /* setup interrupt delivery */
131 ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
132 RF_SHAREABLE | RF_ACTIVE);
134 device_printf(dev, "unable to allocate interrupt\n");
137 if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS,
138 (driver_intr_t *)ata_interrupt, ch, &ch->ih))) {
139 device_printf(dev, "unable to setup interrupt\n");
143 /* probe and attach devices on this channel unless we are in early boot */
144 if (!ata_delayed_attach)
150 ata_detach(device_t dev)
152 struct ata_channel *ch = device_get_softc(dev);
156 /* check that we have a valid channel to detach */
160 /* grap the channel lock so no new requests gets launched */
161 mtx_lock(&ch->state_mtx);
162 ch->state |= ATA_STALL_QUEUE;
163 mtx_unlock(&ch->state_mtx);
165 /* detach & delete all children */
166 if (!device_get_children(dev, &children, &nchildren)) {
167 for (i = 0; i < nchildren; i++)
169 device_delete_child(dev, children[i]);
170 free(children, M_TEMP);
173 /* release resources */
174 bus_teardown_intr(dev, ch->r_irq, ch->ih);
175 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
177 mtx_destroy(&ch->state_mtx);
178 mtx_destroy(&ch->queue_mtx);
183 ata_reinit(device_t dev)
185 struct ata_channel *ch = device_get_softc(dev);
186 struct ata_request *request;
190 /* check that we have a valid channel to reinit */
191 if (!ch || !ch->r_irq)
195 device_printf(dev, "reiniting channel ..\n");
197 /* poll for locking the channel */
198 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
199 tsleep(&dev, PRIBIO, "atarini", 1);
201 /* catch eventual request in ch->running */
202 mtx_lock(&ch->state_mtx);
203 if ((request = ch->running))
204 callout_stop(&request->callout);
207 /* unconditionally grap the channel lock */
208 ch->state |= ATA_STALL_QUEUE;
209 mtx_unlock(&ch->state_mtx);
211 /* reset the controller HW, the channel and device(s) */
214 /* reinit the children and delete any that fails */
215 if (!device_get_children(dev, &children, &nchildren)) {
216 mtx_lock(&Giant); /* newbus suckage it needs Giant */
217 for (i = 0; i < nchildren; i++) {
218 /* did any children go missing ? */
219 if (children[i] && device_is_attached(children[i]) &&
220 ATA_REINIT(children[i])) {
222 * if we had a running request and its device matches
223 * this child we need to inform the request that the
226 if (request && request->dev == children[i]) {
227 request->result = ENXIO;
228 device_printf(request->dev, "FAILURE - device detached\n");
230 /* if not timeout finish request here */
231 if (!(request->flags & ATA_R_TIMEOUT))
235 device_delete_child(dev, children[i]);
238 free(children, M_TEMP);
239 mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
242 /* if we still have a good request put it on the queue again */
243 if (request && !(request->flags & ATA_R_TIMEOUT)) {
244 device_printf(request->dev,
245 "WARNING - %s requeued due to channel reset",
246 ata_cmd2str(request));
247 if (!(request->flags & (ATA_R_ATAPI | ATA_R_CONTROL)))
248 printf(" LBA=%ju", request->u.ata.lba);
250 request->flags |= ATA_R_REQUEUE;
251 ata_queue_request(request);
254 /* we're done release the channel for new work */
255 mtx_lock(&ch->state_mtx);
256 ch->state = ATA_IDLE;
257 mtx_unlock(&ch->state_mtx);
258 ATA_LOCKING(dev, ATA_LF_UNLOCK);
261 device_printf(dev, "reinit done ..\n");
263 /* kick off requests on the queue */
269 ata_suspend(device_t dev)
271 struct ata_channel *ch;
273 /* check for valid device */
274 if (!dev || !(ch = device_get_softc(dev)))
277 /* wait for the channel to be IDLE or detached before suspending */
279 mtx_lock(&ch->state_mtx);
280 if (ch->state == ATA_IDLE) {
281 ch->state = ATA_ACTIVE;
282 mtx_unlock(&ch->state_mtx);
285 mtx_unlock(&ch->state_mtx);
286 tsleep(ch, PRIBIO, "atasusp", hz/10);
288 ATA_LOCKING(dev, ATA_LF_UNLOCK);
293 ata_resume(device_t dev)
295 struct ata_channel *ch;
298 /* check for valid device */
299 if (!dev || !(ch = device_get_softc(dev)))
302 /* reinit the devices, we dont know what mode/state they are in */
303 error = ata_reinit(dev);
305 /* kick off requests on the queue */
311 ata_interrupt(void *data)
313 struct ata_channel *ch = (struct ata_channel *)data;
314 struct ata_request *request;
316 mtx_lock(&ch->state_mtx);
318 /* ignore interrupt if its not for us */
319 if (ch->hw.status && !ch->hw.status(ch->dev))
322 /* do we have a running request */
323 if (!(request = ch->running))
326 ATA_DEBUG_RQ(request, "interrupt");
328 /* safetycheck for the right state */
329 if (ch->state == ATA_IDLE) {
330 device_printf(request->dev, "interrupt on idle channel ignored\n");
335 * we have the HW locks, so end the transaction for this request
336 * if it finishes immediately otherwise wait for next interrupt
338 if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
340 if (ch->state == ATA_ACTIVE)
341 ch->state = ATA_IDLE;
342 mtx_unlock(&ch->state_mtx);
343 ATA_LOCKING(ch->dev, ATA_LF_UNLOCK);
348 mtx_unlock(&ch->state_mtx);
353 * device related interfaces
356 ata_ioctl(struct cdev *dev, u_long cmd, caddr_t data,
357 int32_t flag, struct thread *td)
359 device_t device, *children;
360 struct ata_ioc_devices *devices = (struct ata_ioc_devices *)data;
361 int *value = (int *)data;
362 int i, nchildren, error = ENOTTY;
365 case IOCATAGMAXCHANNEL:
366 *value = devclass_get_maxunit(ata_devclass);
371 if (*value > devclass_get_maxunit(ata_devclass) ||
372 !(device = devclass_get_device(ata_devclass, *value)))
374 error = ata_reinit(device);
379 if (*value > devclass_get_maxunit(ata_devclass) ||
380 !(device = devclass_get_device(ata_devclass, *value)))
382 /* XXX SOS should enable channel HW on controller */
383 error = ata_attach(device);
387 if (*value > devclass_get_maxunit(ata_devclass) ||
388 !(device = devclass_get_device(ata_devclass, *value)))
390 error = ata_detach(device);
391 /* XXX SOS should disable channel HW on controller */
395 if (devices->channel > devclass_get_maxunit(ata_devclass) ||
396 !(device = devclass_get_device(ata_devclass, devices->channel)))
398 bzero(devices->name[0], 32);
399 bzero(&devices->params[0], sizeof(struct ata_params));
400 bzero(devices->name[1], 32);
401 bzero(&devices->params[1], sizeof(struct ata_params));
402 if (!device_get_children(device, &children, &nchildren)) {
403 for (i = 0; i < nchildren; i++) {
404 if (children[i] && device_is_attached(children[i])) {
405 struct ata_device *atadev = device_get_softc(children[i]);
407 if (atadev->unit == ATA_MASTER) {
408 strncpy(devices->name[0],
409 device_get_nameunit(children[i]), 32);
410 bcopy(&atadev->param, &devices->params[0],
411 sizeof(struct ata_params));
413 if (atadev->unit == ATA_SLAVE) {
414 strncpy(devices->name[1],
415 device_get_nameunit(children[i]), 32);
416 bcopy(&atadev->param, &devices->params[1],
417 sizeof(struct ata_params));
421 free(children, M_TEMP);
429 if (ata_raid_ioctl_func)
430 error = ata_raid_ioctl_func(cmd, data);
436 ata_device_ioctl(device_t dev, u_long cmd, caddr_t data)
438 struct ata_device *atadev = device_get_softc(dev);
439 struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data;
440 struct ata_params *params = (struct ata_params *)data;
441 int *mode = (int *)data;
442 struct ata_request *request;
448 if (!(buf = malloc(ioc_request->count, M_ATA, M_NOWAIT))) {
451 if (!(request = ata_alloc_request())) {
455 if (ioc_request->flags & ATA_CMD_WRITE) {
456 error = copyin(ioc_request->data, buf, ioc_request->count);
459 ata_free_request(request);
464 if (ioc_request->flags & ATA_CMD_ATAPI) {
465 request->flags = ATA_R_ATAPI;
466 bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16);
469 request->u.ata.command = ioc_request->u.ata.command;
470 request->u.ata.feature = ioc_request->u.ata.feature;
471 request->u.ata.lba = ioc_request->u.ata.lba;
472 request->u.ata.count = ioc_request->u.ata.count;
474 request->timeout = ioc_request->timeout;
476 request->bytecount = ioc_request->count;
477 request->transfersize = request->bytecount;
478 if (ioc_request->flags & ATA_CMD_CONTROL)
479 request->flags |= ATA_R_CONTROL;
480 if (ioc_request->flags & ATA_CMD_READ)
481 request->flags |= ATA_R_READ;
482 if (ioc_request->flags & ATA_CMD_WRITE)
483 request->flags |= ATA_R_WRITE;
484 ata_queue_request(request);
485 if (request->flags & ATA_R_ATAPI) {
486 bcopy(&request->u.atapi.sense, &ioc_request->u.atapi.sense,
487 sizeof(struct atapi_sense));
490 ioc_request->u.ata.command = request->u.ata.command;
491 ioc_request->u.ata.feature = request->u.ata.feature;
492 ioc_request->u.ata.lba = request->u.ata.lba;
493 ioc_request->u.ata.count = request->u.ata.count;
495 ioc_request->error = request->result;
496 if (ioc_request->flags & ATA_CMD_READ)
497 error = copyout(buf, ioc_request->data, ioc_request->count);
501 ata_free_request(request);
505 ata_getparam(atadev, 0);
506 bcopy(&atadev->param, params, sizeof(struct ata_params));
510 atadev->mode = *mode;
511 ATA_SETMODE(device_get_parent(dev), dev);
515 *mode = atadev->mode;
523 ata_boot_attach(void)
525 struct ata_channel *ch;
528 mtx_lock(&Giant); /* newbus suckage it needs Giant */
530 /* kick of probe and attach on all channels */
531 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
532 if ((ch = devclass_get_softc(ata_devclass, ctlr))) {
533 ata_identify(ch->dev);
537 /* release the hook that got us here, we are only needed once during boot */
538 if (ata_delayed_attach) {
539 config_intrhook_disestablish(ata_delayed_attach);
540 free(ata_delayed_attach, M_TEMP);
541 ata_delayed_attach = NULL;
544 mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
549 * misc support functions
552 ata_add_child(device_t parent, struct ata_device *atadev, int unit)
556 if ((child = device_add_child(parent, NULL, unit))) {
557 device_set_softc(child, atadev);
560 atadev->max_iosize = DEV_BSIZE;
561 atadev->mode = ATA_PIO_MAX;
567 ata_getparam(struct ata_device *atadev, int init)
569 struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev));
570 struct ata_request *request;
571 u_int8_t command = 0;
572 int error = ENOMEM, retries = 2;
575 (atadev->unit == ATA_MASTER ? ATA_ATA_MASTER : ATA_ATA_SLAVE))
576 command = ATA_ATA_IDENTIFY;
578 (atadev->unit == ATA_MASTER ? ATA_ATAPI_MASTER : ATA_ATAPI_SLAVE))
579 command = ATA_ATAPI_IDENTIFY;
583 while (retries-- > 0 && error) {
584 if (!(request = ata_alloc_request()))
586 request->dev = atadev->dev;
587 request->timeout = 1;
588 request->retries = 0;
589 request->u.ata.command = command;
590 request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT|ATA_R_QUIET);
591 request->data = (void *)&atadev->param;
592 request->bytecount = sizeof(struct ata_params);
593 request->donecount = 0;
594 request->transfersize = DEV_BSIZE;
595 ata_queue_request(request);
596 error = request->result;
597 ata_free_request(request);
600 if (!error && (isprint(atadev->param.model[0]) ||
601 isprint(atadev->param.model[1]))) {
602 struct ata_params *atacap = &atadev->param;
607 for (ptr = (int16_t *)atacap;
608 ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) {
609 *ptr = le16toh(*ptr);
612 if (!(!strncmp(atacap->model, "FX", 2) ||
613 !strncmp(atacap->model, "NEC", 3) ||
614 !strncmp(atacap->model, "Pioneer", 7) ||
615 !strncmp(atacap->model, "SHARP", 5))) {
616 bswap(atacap->model, sizeof(atacap->model));
617 bswap(atacap->revision, sizeof(atacap->revision));
618 bswap(atacap->serial, sizeof(atacap->serial));
620 btrim(atacap->model, sizeof(atacap->model));
621 bpack(atacap->model, atacap->model, sizeof(atacap->model));
622 btrim(atacap->revision, sizeof(atacap->revision));
623 bpack(atacap->revision, atacap->revision, sizeof(atacap->revision));
624 btrim(atacap->serial, sizeof(atacap->serial));
625 bpack(atacap->serial, atacap->serial, sizeof(atacap->serial));
628 printf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n",
629 device_get_unit(ch->dev),
630 atadev->unit == ATA_MASTER ? "master" : "slave",
631 ata_mode2str(ata_pmode(atacap)),
632 ata_mode2str(ata_wmode(atacap)),
633 ata_mode2str(ata_umode(atacap)),
634 (atacap->hwres & ATA_CABLE_ID) ? "80":"40");
637 sprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision);
638 device_set_desc_copy(atadev->dev, buffer);
639 if ((atadev->param.config & ATA_PROTO_ATAPI) &&
640 (atadev->param.config != ATA_CFA_MAGIC1) &&
641 (atadev->param.config != ATA_CFA_MAGIC2)) {
642 if (atapi_dma && ch->dma &&
643 (atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR &&
644 ata_umode(&atadev->param) >= ATA_UDMA2)
645 atadev->mode = ATA_DMA_MAX;
648 if (ata_dma && ch->dma &&
649 (ata_umode(&atadev->param) > 0 ||
650 ata_wmode(&atadev->param) > 0))
651 atadev->mode = ATA_DMA_MAX;
663 ata_identify(device_t dev)
665 struct ata_channel *ch = device_get_softc(dev);
666 struct ata_device *master = NULL, *slave = NULL;
667 device_t master_child = NULL, slave_child = NULL;
668 int master_unit = -1, slave_unit = -1;
670 if (ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) {
671 if (!(master = malloc(sizeof(struct ata_device),
672 M_ATA, M_NOWAIT | M_ZERO))) {
673 device_printf(dev, "out of memory\n");
676 master->unit = ATA_MASTER;
678 if (ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) {
679 if (!(slave = malloc(sizeof(struct ata_device),
680 M_ATA, M_NOWAIT | M_ZERO))) {
682 device_printf(dev, "out of memory\n");
685 slave->unit = ATA_SLAVE;
689 if (ch->devices & ATA_ATA_MASTER)
690 master_unit = (device_get_unit(dev) << 1);
692 if (master && !(master_child = ata_add_child(dev, master, master_unit))) {
697 if (ch->devices & ATA_ATA_SLAVE)
698 slave_unit = (device_get_unit(dev) << 1) + 1;
700 if (slave && !(slave_child = ata_add_child(dev, slave, slave_unit))) {
705 if (slave && ata_getparam(slave, 1)) {
706 device_delete_child(dev, slave_child);
709 if (master && ata_getparam(master, 1)) {
710 device_delete_child(dev, master_child);
714 bus_generic_probe(dev);
715 bus_generic_attach(dev);
720 ata_default_registers(device_t dev)
722 struct ata_channel *ch = device_get_softc(dev);
724 /* fill in the defaults from whats setup already */
725 ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
726 ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
727 ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
728 ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
729 ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
730 ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
731 ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
732 ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
736 ata_modify_if_48bit(struct ata_request *request)
738 struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
739 struct ata_device *atadev = device_get_softc(request->dev);
741 atadev->flags &= ~ATA_D_48BIT_ACTIVE;
743 if ((request->u.ata.lba >= ATA_MAX_28BIT_LBA ||
744 request->u.ata.count > 256) &&
745 atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
747 /* translate command into 48bit version */
748 switch (request->u.ata.command) {
750 request->u.ata.command = ATA_READ48;
753 request->u.ata.command = ATA_READ_MUL48;
756 if (ch->flags & ATA_NO_48BIT_DMA) {
757 if (request->transfersize > DEV_BSIZE)
758 request->u.ata.command = ATA_READ_MUL48;
760 request->u.ata.command = ATA_READ48;
761 request->flags &= ~ATA_R_DMA;
764 request->u.ata.command = ATA_READ_DMA48;
766 case ATA_READ_DMA_QUEUED:
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_DMA_QUEUED48;
778 request->u.ata.command = ATA_WRITE48;
781 request->u.ata.command = ATA_WRITE_MUL48;
784 if (ch->flags & ATA_NO_48BIT_DMA) {
785 if (request->transfersize > DEV_BSIZE)
786 request->u.ata.command = ATA_WRITE_MUL48;
788 request->u.ata.command = ATA_WRITE48;
789 request->flags &= ~ATA_R_DMA;
792 request->u.ata.command = ATA_WRITE_DMA48;
794 case ATA_WRITE_DMA_QUEUED:
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->u.ata.command = ATA_WRITE48;
801 request->flags &= ~ATA_R_DMA;
804 request->u.ata.command = ATA_WRITE_DMA_QUEUED48;
807 request->u.ata.command = ATA_FLUSHCACHE48;
809 case ATA_READ_NATIVE_MAX_ADDDRESS:
810 request->u.ata.command = ATA_READ_NATIVE_MAX_ADDDRESS48;
812 case ATA_SET_MAX_ADDRESS:
813 request->u.ata.command = ATA_SET_MAX_ADDRESS48;
818 atadev->flags |= ATA_D_48BIT_ACTIVE;
823 ata_udelay(int interval)
825 /* for now just use DELAY, the timer/sleep subsytems are not there yet */
826 if (1 || interval < (1000000/hz) || ata_delayed_attach)
829 tsleep(&interval, PRIBIO, "ataslp", interval/(1000000/hz));
833 ata_mode2str(int mode)
836 case -1: return "UNSUPPORTED";
837 case ATA_PIO0: return "PIO0";
838 case ATA_PIO1: return "PIO1";
839 case ATA_PIO2: return "PIO2";
840 case ATA_PIO3: return "PIO3";
841 case ATA_PIO4: return "PIO4";
842 case ATA_WDMA0: return "WDMA0";
843 case ATA_WDMA1: return "WDMA1";
844 case ATA_WDMA2: return "WDMA2";
845 case ATA_UDMA0: return "UDMA16";
846 case ATA_UDMA1: return "UDMA25";
847 case ATA_UDMA2: return "UDMA33";
848 case ATA_UDMA3: return "UDMA40";
849 case ATA_UDMA4: return "UDMA66";
850 case ATA_UDMA5: return "UDMA100";
851 case ATA_UDMA6: return "UDMA133";
852 case ATA_SA150: return "SATA150";
853 case ATA_SA300: return "SATA300";
854 case ATA_USB: return "USB";
855 case ATA_USB1: return "USB1";
856 case ATA_USB2: return "USB2";
858 if (mode & ATA_DMA_MASK)
866 ata_pmode(struct ata_params *ap)
868 if (ap->atavalid & ATA_FLAG_64_70) {
869 if (ap->apiomodes & 0x02)
871 if (ap->apiomodes & 0x01)
874 if (ap->mwdmamodes & 0x04)
876 if (ap->mwdmamodes & 0x02)
878 if (ap->mwdmamodes & 0x01)
880 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
882 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
884 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
890 ata_wmode(struct ata_params *ap)
892 if (ap->mwdmamodes & 0x04)
894 if (ap->mwdmamodes & 0x02)
896 if (ap->mwdmamodes & 0x01)
902 ata_umode(struct ata_params *ap)
904 if (ap->atavalid & ATA_FLAG_88) {
905 if (ap->udmamodes & 0x40)
907 if (ap->udmamodes & 0x20)
909 if (ap->udmamodes & 0x10)
911 if (ap->udmamodes & 0x08)
913 if (ap->udmamodes & 0x04)
915 if (ap->udmamodes & 0x02)
917 if (ap->udmamodes & 0x01)
924 ata_limit_mode(device_t dev, int mode, int maxmode)
926 struct ata_device *atadev = device_get_softc(dev);
928 if (maxmode && mode > maxmode)
931 if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0)
932 return min(mode, ata_umode(&atadev->param));
934 if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0)
935 return min(mode, ata_wmode(&atadev->param));
937 if (mode > ata_pmode(&atadev->param))
938 return min(mode, ata_pmode(&atadev->param));
944 bswap(int8_t *buf, int len)
946 u_int16_t *ptr = (u_int16_t*)(buf + len);
948 while (--ptr >= (u_int16_t*)buf)
953 btrim(int8_t *buf, int len)
957 for (ptr = buf; ptr < buf+len; ++ptr)
958 if (!*ptr || *ptr == '_')
960 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
965 bpack(int8_t *src, int8_t *dst, int len)
969 for (i = j = blank = 0 ; i < len; i++) {
970 if (blank && src[i] == ' ') continue;
971 if (blank && src[i] != ' ') {
992 ata_module_event_handler(module_t mod, int what, void *arg)
994 static struct cdev *atacdev;
998 /* register controlling device */
999 atacdev = make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata");
1002 /* register boot attach to be run when interrupts are enabled */
1003 if (!(ata_delayed_attach = (struct intr_config_hook *)
1004 malloc(sizeof(struct intr_config_hook),
1005 M_TEMP, M_NOWAIT | M_ZERO))) {
1006 printf("ata: malloc of delayed attach hook failed\n");
1009 ata_delayed_attach->ich_func = (void*)ata_boot_attach;
1010 if (config_intrhook_establish(ata_delayed_attach) != 0) {
1011 printf("ata: config_intrhook_establish failed\n");
1012 free(ata_delayed_attach, M_TEMP);
1018 /* deregister controlling device */
1019 destroy_dev(atacdev);
1027 static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
1028 DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
1029 MODULE_VERSION(ata, 1);
1034 ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request),
1035 NULL, NULL, NULL, NULL, 0, 0);
1036 ata_composite_zone = uma_zcreate("ata_composite",
1037 sizeof(struct ata_composite),
1038 NULL, NULL, NULL, NULL, 0, 0);
1040 SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
1045 uma_zdestroy(ata_composite_zone);
1046 uma_zdestroy(ata_request_zone);
1048 SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);