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>
51 #include <machine/md_var.h>
53 #include <dev/ata/ata-all.h>
56 /* device structure */
57 static d_ioctl_t ata_ioctl;
58 static struct cdevsw ata_cdevsw = {
59 .d_version = D_VERSION,
60 .d_flags = D_NEEDGIANT, /* we need this as newbus isn't mpsafe */
66 static void ata_interrupt(void *);
67 static void ata_boot_attach(void);
68 static device_t ata_add_child(device_t, struct ata_device *, int);
69 static int ata_getparam(struct ata_device *, int);
70 static void bswap(int8_t *, int);
71 static void btrim(int8_t *, int);
72 static void bpack(int8_t *, int8_t *, int);
75 MALLOC_DEFINE(M_ATA, "ata_generic", "ATA driver generic layer");
76 int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL;
77 devclass_t ata_devclass;
78 uma_zone_t ata_request_zone;
79 uma_zone_t ata_composite_zone;
83 static struct intr_config_hook *ata_delayed_attach = NULL;
84 static int ata_dma = 1;
85 static int atapi_dma = 1;
88 SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
89 TUNABLE_INT("hw.ata.ata_dma", &ata_dma);
90 SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0,
91 "ATA disk DMA mode control");
92 TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma);
93 SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0,
94 "ATAPI device DMA mode control");
95 TUNABLE_INT("hw.ata.wc", &ata_wc);
96 SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0,
97 "ATA disk write caching");
100 * newbus device interface related functions
103 ata_probe(device_t dev)
109 ata_attach(device_t dev)
111 struct ata_channel *ch = device_get_softc(dev);
114 /* check that we have a virgin channel to attach */
118 /* initialize the softc basics */
120 ch->state = ATA_IDLE;
121 bzero(&ch->state_mtx, sizeof(struct mtx));
122 mtx_init(&ch->state_mtx, "ATA state lock", NULL, MTX_DEF);
123 bzero(&ch->queue_mtx, sizeof(struct mtx));
124 mtx_init(&ch->queue_mtx, "ATA queue lock", NULL, MTX_DEF);
125 TAILQ_INIT(&ch->ata_queue);
127 /* reset the controller HW, the channel and device(s) */
128 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
129 tsleep(&error, PRIBIO, "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 ata_interrupt, ch, &ch->ih))) {
143 device_printf(dev, "unable to setup interrupt\n");
147 /* probe and attach devices on this channel unless we are in early boot */
148 if (!ata_delayed_attach)
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 /* detach & delete all children */
165 if (!device_get_children(dev, &children, &nchildren)) {
166 for (i = 0; i < nchildren; i++)
168 device_delete_child(dev, children[i]);
169 free(children, M_TEMP);
172 /* release resources */
173 bus_teardown_intr(dev, ch->r_irq, ch->ih);
174 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
176 mtx_destroy(&ch->state_mtx);
177 mtx_destroy(&ch->queue_mtx);
182 ata_reinit(device_t dev)
184 struct ata_channel *ch = device_get_softc(dev);
185 struct ata_request *request;
189 /* check that we have a valid channel to reinit */
190 if (!ch || !ch->r_irq)
194 device_printf(dev, "reiniting channel ..\n");
196 /* poll for locking the channel */
197 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
198 tsleep(&dev, PRIBIO, "atarini", 1);
200 /* unconditionally grap the channel lock */
201 mtx_lock(&ch->state_mtx);
202 ch->state = ATA_STALL_QUEUE;
203 mtx_unlock(&ch->state_mtx);
205 /* reset the controller HW, the channel and device(s) */
208 /* reinit the children and delete any that fails */
209 if (!device_get_children(dev, &children, &nchildren)) {
210 mtx_lock(&Giant); /* newbus suckage it needs Giant */
211 for (i = 0; i < nchildren; i++) {
212 if (children[i] && device_is_attached(children[i]))
213 if (ATA_REINIT(children[i])) {
215 * if we have a running request and its device matches
216 * this child we need to inform the request that the
217 * device is gone and remove it from ch->running
219 mtx_lock(&ch->state_mtx);
220 if (ch->running && ch->running->dev == children[i]) {
221 callout_stop(&ch->running->callout);
222 request = ch->running;
227 mtx_unlock(&ch->state_mtx);
230 request->result = ENXIO;
231 device_printf(request->dev,
232 "FAILURE - device detached\n");
234 /* if not timeout finish request here */
235 if (!(request->flags & ATA_R_TIMEOUT))
238 device_delete_child(dev, children[i]);
241 free(children, M_TEMP);
242 mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
245 /* catch request in ch->running if we havn't already */
246 mtx_lock(&ch->state_mtx);
247 if ((request = ch->running))
248 callout_stop(&request->callout);
250 mtx_unlock(&ch->state_mtx);
252 /* if we got one put it on the queue again */
254 device_printf(request->dev,
255 "WARNING - %s requeued due to channel reset",
256 ata_cmd2str(request));
257 if (!(request->flags & (ATA_R_ATAPI | ATA_R_CONTROL)))
258 printf(" LBA=%llu", (unsigned long long)request->u.ata.lba);
260 request->flags |= ATA_R_REQUEUE;
261 ata_queue_request(request);
264 /* we're done release the channel for new work */
265 mtx_lock(&ch->state_mtx);
266 ch->state = ATA_IDLE;
267 mtx_unlock(&ch->state_mtx);
268 ATA_LOCKING(dev, ATA_LF_UNLOCK);
271 device_printf(dev, "reinit done ..\n");
273 /* kick off requests on the queue */
279 ata_suspend(device_t dev)
281 struct ata_channel *ch;
283 /* check for valid device */
284 if (!dev || !(ch = device_get_softc(dev)))
287 /* wait for the channel to be IDLE before entering suspend mode */
289 mtx_lock(&ch->state_mtx);
290 if (ch->state == ATA_IDLE) {
291 ch->state = ATA_ACTIVE;
292 mtx_unlock(&ch->state_mtx);
295 mtx_unlock(&ch->state_mtx);
296 tsleep(ch, PRIBIO, "atasusp", hz/10);
298 ATA_LOCKING(dev, ATA_LF_UNLOCK);
303 ata_resume(device_t dev)
305 struct ata_channel *ch;
308 /* check for valid device */
309 if (!dev || !(ch = device_get_softc(dev)))
312 /* reinit the devices, we dont know what mode/state they are in */
313 error = ata_reinit(dev);
315 /* kick off requests on the queue */
321 ata_interrupt(void *data)
323 struct ata_channel *ch = (struct ata_channel *)data;
324 struct ata_request *request;
326 mtx_lock(&ch->state_mtx);
328 /* do we have a running request */
329 if (!(request = ch->running))
332 ATA_DEBUG_RQ(request, "interrupt");
334 /* ignore interrupt if device is busy */
335 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) {
337 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY)
341 /* check for the right state */
342 if (ch->state != ATA_ACTIVE && ch->state != ATA_STALL_QUEUE) {
343 device_printf(request->dev, "interrupt on idle channel ignored\n");
348 * we have the HW locks, so end the tranaction for this request
349 * if it finishes immediately otherwise wait for next interrupt
351 if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
353 if (ch->state == ATA_ACTIVE)
354 ch->state = ATA_IDLE;
355 mtx_unlock(&ch->state_mtx);
356 ATA_LOCKING(ch->dev, ATA_LF_UNLOCK);
361 mtx_unlock(&ch->state_mtx);
365 * device related interfaces
368 ata_ioctl(struct cdev *dev, u_long cmd, caddr_t data,
369 int32_t flag, struct thread *td)
371 device_t device, *children;
372 struct ata_ioc_devices *devices = (struct ata_ioc_devices *)data;
373 int *value = (int *)data;
374 int i, nchildren, error = ENOTTY;
377 case IOCATAGMAXCHANNEL:
378 *value = devclass_get_maxunit(ata_devclass);
383 if (*value > devclass_get_maxunit(ata_devclass) ||
384 !(device = devclass_get_device(ata_devclass, *value)))
386 error = ata_reinit(device);
391 if (*value > devclass_get_maxunit(ata_devclass) ||
392 !(device = devclass_get_device(ata_devclass, *value)))
394 /* XXX SOS should enable channel HW on controller */
395 error = ata_attach(device);
399 if (*value > devclass_get_maxunit(ata_devclass) ||
400 !(device = devclass_get_device(ata_devclass, *value)))
402 error = ata_detach(device);
403 /* XXX SOS should disable channel HW on controller */
407 if (devices->channel > devclass_get_maxunit(ata_devclass) ||
408 !(device = devclass_get_device(ata_devclass, devices->channel)))
410 bzero(devices->name[0], 32);
411 bzero(&devices->params[0], sizeof(struct ata_params));
412 bzero(devices->name[1], 32);
413 bzero(&devices->params[1], sizeof(struct ata_params));
414 if (!device_get_children(device, &children, &nchildren)) {
415 for (i = 0; i < nchildren; i++) {
416 if (children[i] && device_is_attached(children[i])) {
417 struct ata_device *atadev = device_get_softc(children[i]);
419 if (atadev->unit == ATA_MASTER) {
420 strncpy(devices->name[0],
421 device_get_nameunit(children[i]), 32);
422 bcopy(&atadev->param, &devices->params[0],
423 sizeof(struct ata_params));
425 if (atadev->unit == ATA_SLAVE) {
426 strncpy(devices->name[1],
427 device_get_nameunit(children[i]), 32);
428 bcopy(&atadev->param, &devices->params[1],
429 sizeof(struct ata_params));
433 free(children, M_TEMP);
441 if (ata_raid_ioctl_func)
442 error = ata_raid_ioctl_func(cmd, data);
448 ata_device_ioctl(device_t dev, u_long cmd, caddr_t data)
450 struct ata_device *atadev = device_get_softc(dev);
451 struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data;
452 struct ata_params *params = (struct ata_params *)data;
453 int *mode = (int *)data;
454 struct ata_request *request;
460 if (!(buf = malloc(ioc_request->count, M_ATA, M_NOWAIT))) {
463 if (!(request = ata_alloc_request())) {
467 if (ioc_request->flags & ATA_CMD_WRITE) {
468 error = copyin(ioc_request->data, buf, ioc_request->count);
471 ata_free_request(request);
476 if (ioc_request->flags & ATA_CMD_ATAPI) {
477 request->flags = ATA_R_ATAPI;
478 bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16);
481 request->u.ata.command = ioc_request->u.ata.command;
482 request->u.ata.feature = ioc_request->u.ata.feature;
483 request->u.ata.lba = ioc_request->u.ata.lba;
484 request->u.ata.count = ioc_request->u.ata.count;
486 request->timeout = ioc_request->timeout;
488 request->bytecount = ioc_request->count;
489 request->transfersize = request->bytecount;
490 if (ioc_request->flags & ATA_CMD_CONTROL)
491 request->flags |= ATA_R_CONTROL;
492 if (ioc_request->flags & ATA_CMD_READ)
493 request->flags |= ATA_R_READ;
494 if (ioc_request->flags & ATA_CMD_WRITE)
495 request->flags |= ATA_R_WRITE;
496 ata_queue_request(request);
497 if (!(request->flags & ATA_R_ATAPI)) {
498 ioc_request->u.ata.command = request->u.ata.command;
499 ioc_request->u.ata.feature = request->u.ata.feature;
500 ioc_request->u.ata.lba = request->u.ata.lba;
501 ioc_request->u.ata.count = request->u.ata.count;
503 ioc_request->error = request->result;
504 if (ioc_request->flags & ATA_CMD_READ)
505 error = copyout(buf, ioc_request->data, ioc_request->count);
509 ata_free_request(request);
513 ata_getparam(atadev, 0);
514 bcopy(&atadev->param, params, sizeof(struct ata_params));
518 atadev->mode = *mode;
519 ATA_SETMODE(device_get_parent(dev), dev);
523 *mode = atadev->mode;
531 ata_boot_attach(void)
533 struct ata_channel *ch;
536 mtx_lock(&Giant); /* newbus suckage it needs Giant */
538 /* kick of probe and attach on all channels */
539 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
540 if ((ch = devclass_get_softc(ata_devclass, ctlr))) {
541 ata_identify(ch->dev);
545 /* release the hook that got us here, we are only needed once during boot */
546 if (ata_delayed_attach) {
547 config_intrhook_disestablish(ata_delayed_attach);
548 ata_delayed_attach = NULL;
549 free(ata_delayed_attach, M_TEMP);
552 mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
557 * misc support functions
560 ata_add_child(device_t parent, struct ata_device *atadev, int unit)
564 if ((child = device_add_child(parent, NULL, unit))) {
565 device_set_softc(child, atadev);
568 atadev->max_iosize = DEV_BSIZE;
569 atadev->mode = ATA_PIO_MAX;
575 ata_getparam(struct ata_device *atadev, int init)
577 struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev));
578 struct ata_request *request;
579 u_int8_t command = 0;
580 int error = ENOMEM, retries = 2;
583 (atadev->unit == ATA_MASTER ? ATA_ATA_MASTER : ATA_ATA_SLAVE))
584 command = ATA_ATA_IDENTIFY;
586 (atadev->unit == ATA_MASTER ? ATA_ATAPI_MASTER : ATA_ATAPI_SLAVE))
587 command = ATA_ATAPI_IDENTIFY;
591 while (retries-- > 0 && error) {
592 if (!(request = ata_alloc_request()))
594 request->dev = atadev->dev;
595 request->timeout = 1;
596 request->retries = 0;
597 request->u.ata.command = command;
598 request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT|ATA_R_QUIET);
599 request->data = (void *)&atadev->param;
600 request->bytecount = sizeof(struct ata_params);
601 request->donecount = 0;
602 request->transfersize = DEV_BSIZE;
603 ata_queue_request(request);
604 error = request->result;
605 ata_free_request(request);
608 if (!error && (isprint(atadev->param.model[0]) ||
609 isprint(atadev->param.model[1]))) {
610 struct ata_params *atacap = &atadev->param;
612 #if BYTE_ORDER == BIG_ENDIAN
615 for (ptr = (int16_t *)atacap;
616 ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) {
617 *ptr = bswap16(*ptr);
620 if (!(!strncmp(atacap->model, "FX", 2) ||
621 !strncmp(atacap->model, "NEC", 3) ||
622 !strncmp(atacap->model, "Pioneer", 7) ||
623 !strncmp(atacap->model, "SHARP", 5))) {
624 bswap(atacap->model, sizeof(atacap->model));
625 bswap(atacap->revision, sizeof(atacap->revision));
626 bswap(atacap->serial, sizeof(atacap->serial));
628 btrim(atacap->model, sizeof(atacap->model));
629 bpack(atacap->model, atacap->model, sizeof(atacap->model));
630 btrim(atacap->revision, sizeof(atacap->revision));
631 bpack(atacap->revision, atacap->revision, sizeof(atacap->revision));
632 btrim(atacap->serial, sizeof(atacap->serial));
633 bpack(atacap->serial, atacap->serial, sizeof(atacap->serial));
636 printf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n",
637 ch->unit, atadev->unit == ATA_MASTER ? "master":"slave",
638 ata_mode2str(ata_pmode(atacap)),
639 ata_mode2str(ata_wmode(atacap)),
640 ata_mode2str(ata_umode(atacap)),
641 (atacap->hwres & ATA_CABLE_ID) ? "80":"40");
644 sprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision);
645 device_set_desc_copy(atadev->dev, buffer);
646 if (atadev->param.config & ATA_PROTO_ATAPI) {
647 if (atapi_dma && ch->dma &&
648 (atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR &&
649 ata_umode(&atadev->param) >= ATA_UDMA2)
650 atadev->mode = ATA_DMA_MAX;
653 if (ata_dma && ch->dma &&
654 (ata_umode(&atadev->param) > 0 ||
655 ata_wmode(&atadev->param) > 0))
656 atadev->mode = ATA_DMA_MAX;
668 ata_identify(device_t dev)
670 struct ata_channel *ch = device_get_softc(dev);
671 struct ata_device *master = NULL, *slave = NULL;
672 device_t master_child = NULL, slave_child = NULL;
673 int master_unit = -1, slave_unit = -1;
675 if (ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) {
676 if (!(master = malloc(sizeof(struct ata_device),
677 M_ATA, M_NOWAIT | M_ZERO))) {
678 device_printf(dev, "out of memory\n");
681 master->unit = ATA_MASTER;
683 if (ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) {
684 if (!(slave = malloc(sizeof(struct ata_device),
685 M_ATA, M_NOWAIT | M_ZERO))) {
687 device_printf(dev, "out of memory\n");
690 slave->unit = ATA_SLAVE;
694 if (ch->devices & ATA_ATA_MASTER)
695 master_unit = (device_get_unit(dev) << 1);
697 if (master && !(master_child = ata_add_child(dev, master, master_unit))) {
702 if (ch->devices & ATA_ATA_SLAVE)
703 slave_unit = (device_get_unit(dev) << 1) + 1;
705 if (slave && !(slave_child = ata_add_child(dev, slave, slave_unit))) {
710 if (slave && ata_getparam(slave, 1)) {
711 device_delete_child(dev, slave_child);
714 if (master && ata_getparam(master, 1)) {
715 device_delete_child(dev, master_child);
719 bus_generic_probe(dev);
720 bus_generic_attach(dev);
725 ata_default_registers(device_t dev)
727 struct ata_channel *ch = device_get_softc(dev);
729 /* fill in the defaults from whats setup already */
730 ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
731 ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
732 ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
733 ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
734 ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
735 ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
736 ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
737 ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
741 ata_modify_if_48bit(struct ata_request *request)
743 struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
744 struct ata_device *atadev = device_get_softc(request->dev);
746 atadev->flags &= ~ATA_D_48BIT_ACTIVE;
748 if ((request->u.ata.lba >= ATA_MAX_28BIT_LBA ||
749 request->u.ata.count > 256) &&
750 atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
752 /* translate command into 48bit version */
753 switch (request->u.ata.command) {
755 request->u.ata.command = ATA_READ48;
758 request->u.ata.command = ATA_READ_MUL48;
761 if (ch->flags & ATA_NO_48BIT_DMA) {
762 if (request->transfersize > DEV_BSIZE)
763 request->u.ata.command = ATA_READ_MUL48;
765 request->u.ata.command = ATA_READ48;
766 request->flags &= ~ATA_R_DMA;
769 request->u.ata.command = ATA_READ_DMA48;
771 case ATA_READ_DMA_QUEUED:
772 if (ch->flags & ATA_NO_48BIT_DMA) {
773 if (request->transfersize > DEV_BSIZE)
774 request->u.ata.command = ATA_READ_MUL48;
776 request->u.ata.command = ATA_READ48;
777 request->flags &= ~ATA_R_DMA;
780 request->u.ata.command = ATA_READ_DMA_QUEUED48;
783 request->u.ata.command = ATA_WRITE48;
786 request->u.ata.command = ATA_WRITE_MUL48;
789 if (ch->flags & ATA_NO_48BIT_DMA) {
790 if (request->transfersize > DEV_BSIZE)
791 request->u.ata.command = ATA_WRITE_MUL48;
793 request->u.ata.command = ATA_WRITE48;
794 request->flags &= ~ATA_R_DMA;
797 request->u.ata.command = ATA_WRITE_DMA48;
799 case ATA_WRITE_DMA_QUEUED:
800 if (ch->flags & ATA_NO_48BIT_DMA) {
801 if (request->transfersize > DEV_BSIZE)
802 request->u.ata.command = ATA_WRITE_MUL48;
804 request->u.ata.command = ATA_WRITE48;
805 request->u.ata.command = ATA_WRITE48;
806 request->flags &= ~ATA_R_DMA;
809 request->u.ata.command = ATA_WRITE_DMA_QUEUED48;
812 request->u.ata.command = ATA_FLUSHCACHE48;
814 case ATA_READ_NATIVE_MAX_ADDDRESS:
815 request->u.ata.command = ATA_READ_NATIVE_MAX_ADDDRESS48;
817 case ATA_SET_MAX_ADDRESS:
818 request->u.ata.command = ATA_SET_MAX_ADDRESS48;
823 atadev->flags |= ATA_D_48BIT_ACTIVE;
828 ata_udelay(int interval)
830 /* for now just use DELAY, the timer/sleep subsytems are not there yet */
831 if (1 || interval < (1000000/hz) || ata_delayed_attach)
834 tsleep(&interval, PRIBIO, "ataslp", interval/(1000000/hz));
838 ata_mode2str(int mode)
841 case -1: return "UNSUPPORTED";
842 case ATA_PIO0: return "PIO0";
843 case ATA_PIO1: return "PIO1";
844 case ATA_PIO2: return "PIO2";
845 case ATA_PIO3: return "PIO3";
846 case ATA_PIO4: return "PIO4";
847 case ATA_WDMA0: return "WDMA0";
848 case ATA_WDMA1: return "WDMA1";
849 case ATA_WDMA2: return "WDMA2";
850 case ATA_UDMA0: return "UDMA16";
851 case ATA_UDMA1: return "UDMA25";
852 case ATA_UDMA2: return "UDMA33";
853 case ATA_UDMA3: return "UDMA40";
854 case ATA_UDMA4: return "UDMA66";
855 case ATA_UDMA5: return "UDMA100";
856 case ATA_UDMA6: return "UDMA133";
857 case ATA_SA150: return "SATA150";
858 case ATA_SA300: return "SATA300";
860 if (mode & ATA_DMA_MASK)
868 ata_pmode(struct ata_params *ap)
870 if (ap->atavalid & ATA_FLAG_64_70) {
871 if (ap->apiomodes & 0x02)
873 if (ap->apiomodes & 0x01)
876 if (ap->mwdmamodes & 0x04)
878 if (ap->mwdmamodes & 0x02)
880 if (ap->mwdmamodes & 0x01)
882 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
884 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
886 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
892 ata_wmode(struct ata_params *ap)
894 if (ap->mwdmamodes & 0x04)
896 if (ap->mwdmamodes & 0x02)
898 if (ap->mwdmamodes & 0x01)
904 ata_umode(struct ata_params *ap)
906 if (ap->atavalid & ATA_FLAG_88) {
907 if (ap->udmamodes & 0x40)
909 if (ap->udmamodes & 0x20)
911 if (ap->udmamodes & 0x10)
913 if (ap->udmamodes & 0x08)
915 if (ap->udmamodes & 0x04)
917 if (ap->udmamodes & 0x02)
919 if (ap->udmamodes & 0x01)
926 ata_limit_mode(device_t dev, int mode, int maxmode)
928 struct ata_device *atadev = device_get_softc(dev);
930 if (maxmode && mode > maxmode)
933 if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0)
934 return min(mode, ata_umode(&atadev->param));
936 if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0)
937 return min(mode, ata_wmode(&atadev->param));
939 if (mode > ata_pmode(&atadev->param))
940 return min(mode, ata_pmode(&atadev->param));
946 bswap(int8_t *buf, int len)
948 u_int16_t *ptr = (u_int16_t*)(buf + len);
950 while (--ptr >= (u_int16_t*)buf)
955 btrim(int8_t *buf, int len)
959 for (ptr = buf; ptr < buf+len; ++ptr)
960 if (!*ptr || *ptr == '_')
962 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
967 bpack(int8_t *src, int8_t *dst, int len)
971 for (i = j = blank = 0 ; i < len; i++) {
972 if (blank && src[i] == ' ') continue;
973 if (blank && src[i] != ' ') {
994 ata_module_event_handler(module_t mod, int what, void *arg)
996 static struct cdev *atacdev;
1000 /* register controlling device */
1001 atacdev = make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata");
1004 /* register boot attach to be run when interrupts are enabled */
1005 if (!(ata_delayed_attach = (struct intr_config_hook *)
1006 malloc(sizeof(struct intr_config_hook),
1007 M_TEMP, M_NOWAIT | M_ZERO))) {
1008 printf("ata: malloc of delayed attach hook failed\n");
1011 ata_delayed_attach->ich_func = (void*)ata_boot_attach;
1012 if (config_intrhook_establish(ata_delayed_attach) != 0) {
1013 printf("ata: config_intrhook_establish failed\n");
1014 free(ata_delayed_attach, M_TEMP);
1020 /* deregister controlling device */
1021 destroy_dev(atacdev);
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);
1036 ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request),
1037 NULL, NULL, NULL, NULL, 0, 0);
1038 ata_composite_zone = uma_zcreate("ata_composite",
1039 sizeof(struct ata_composite),
1040 NULL, NULL, NULL, NULL, 0, 0);
1042 SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
1047 uma_zdestroy(ata_composite_zone);
1048 uma_zdestroy(ata_request_zone);
1050 SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);