2 * Copyright (c) 1998 - 2005 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.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
33 #include <sys/param.h>
34 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/module.h>
38 #include <sys/endian.h>
39 #include <sys/ctype.h>
43 #include <sys/malloc.h>
44 #include <sys/sysctl.h>
46 #include <sys/taskqueue.h>
48 #include <machine/stdarg.h>
49 #include <machine/resource.h>
50 #include <machine/bus.h>
53 #include <machine/md_var.h>
55 #include <dev/ata/ata-all.h>
58 /* device structure */
59 static d_ioctl_t ata_ioctl;
60 static struct cdevsw ata_cdevsw = {
61 .d_version = D_VERSION,
62 .d_flags = D_NEEDGIANT, /* we need this as newbus isn't mpsafe */
68 static void ata_interrupt(void *);
69 static void ata_boot_attach(void);
70 static device_t ata_add_child(device_t, 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 uma_zone_t ata_request_zone;
80 uma_zone_t ata_composite_zone;
84 static struct intr_config_hook *ata_delayed_attach = NULL;
85 static int ata_dma = 1;
86 static int atapi_dma = 1;
89 SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
90 TUNABLE_INT("hw.ata.ata_dma", &ata_dma);
91 SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0,
92 "ATA disk DMA mode control");
93 TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma);
94 SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0,
95 "ATAPI device DMA mode control");
96 TUNABLE_INT("hw.ata.wc", &ata_wc);
97 SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0,
98 "ATA disk write caching");
101 * newbus device interface related functions
104 ata_probe(device_t dev)
110 ata_attach(device_t dev)
112 struct ata_channel *ch = device_get_softc(dev);
115 /* check that we have a virgin channel to attach */
119 /* initialize the softc basics */
121 ch->state = ATA_IDLE;
122 bzero(&ch->state_mtx, sizeof(struct mtx));
123 mtx_init(&ch->state_mtx, "ATA state lock", NULL, MTX_DEF);
124 bzero(&ch->queue_mtx, sizeof(struct mtx));
125 mtx_init(&ch->queue_mtx, "ATA queue lock", NULL, MTX_DEF);
126 TAILQ_INIT(&ch->ata_queue);
128 /* reset the controller HW, the channel and device(s) */
129 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
130 tsleep(&error, PRIBIO, "ataatch", 1);
132 ATA_LOCKING(dev, ATA_LF_UNLOCK);
134 /* setup interrupt delivery */
136 ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
137 RF_SHAREABLE | RF_ACTIVE);
139 device_printf(dev, "unable to allocate interrupt\n");
142 if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS,
143 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 */
149 if (!ata_delayed_attach)
155 ata_detach(device_t dev)
157 struct ata_channel *ch = device_get_softc(dev);
161 /* check that we have a vaild channel to detach */
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);
189 /* check that we have a vaild 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 if (ch->running && ch->running->dev == children[i]) {
220 device_printf(ch->running->dev,
221 "FAILURE - device detached\n");
222 ch->running->dev = NULL;
225 device_delete_child(dev, children[i]);
228 free(children, M_TEMP);
229 mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
232 /* catch request in ch->running if we havn't already */
233 ata_catch_inflight(dev);
235 /* we're done release the channel for new work */
236 mtx_lock(&ch->state_mtx);
237 ch->state = ATA_IDLE;
238 mtx_unlock(&ch->state_mtx);
239 ATA_LOCKING(dev, ATA_LF_UNLOCK);
242 device_printf(dev, "reinit done ..\n");
244 /* kick off requests on the queue */
250 ata_suspend(device_t dev)
252 struct ata_channel *ch;
254 /* check for valid device */
255 if (!dev || !(ch = device_get_softc(dev)))
258 /* wait for the channel to be IDLE before entering suspend mode */
260 mtx_lock(&ch->state_mtx);
261 if (ch->state == ATA_IDLE) {
262 ch->state = ATA_ACTIVE;
263 mtx_unlock(&ch->state_mtx);
266 mtx_unlock(&ch->state_mtx);
267 tsleep(ch, PRIBIO, "atasusp", hz/10);
269 ATA_LOCKING(dev, ATA_LF_UNLOCK);
274 ata_resume(device_t dev)
276 struct ata_channel *ch;
279 /* check for valid device */
280 if (!dev || !(ch = device_get_softc(dev)))
283 /* reinit the devices, we dont know what mode/state they are in */
284 error = ata_reinit(dev);
286 /* kick off requests on the queue */
292 ata_interrupt(void *data)
294 struct ata_channel *ch = (struct ata_channel *)data;
295 struct ata_request *request;
297 mtx_lock(&ch->state_mtx);
299 /* do we have a running request */
300 if (!(request = ch->running) || (request->flags & ATA_R_TIMEOUT))
303 ATA_DEBUG_RQ(request, "interrupt");
305 /* ignore interrupt if device is busy */
306 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) {
308 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY)
312 /* check for the right state */
313 if (ch->state != ATA_ACTIVE && ch->state != ATA_STALL_QUEUE) {
314 device_printf(request->dev,
315 "interrupt state=%d unexpected\n", ch->state);
320 * we have the HW locks, so end the tranaction for this request
321 * if it finishes immediately otherwise wait for next interrupt
323 if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
325 if (ch->state == ATA_ACTIVE)
326 ch->state = ATA_IDLE;
327 mtx_unlock(&ch->state_mtx);
328 ATA_LOCKING(ch->dev, ATA_LF_UNLOCK);
333 mtx_unlock(&ch->state_mtx);
337 * device related interfaces
340 ata_ioctl(struct cdev *dev, u_long cmd, caddr_t data,
341 int32_t flag, struct thread *td)
343 device_t device, *children;
344 struct ata_ioc_devices *devices = (struct ata_ioc_devices *)data;
345 int *value = (int *)data;
346 int i, nchildren, error = ENOTTY;
349 case IOCATAGMAXCHANNEL:
350 *value = devclass_get_maxunit(ata_devclass);
355 if (*value > devclass_get_maxunit(ata_devclass) ||
356 !(device = devclass_get_device(ata_devclass, *value)))
358 error = ata_reinit(device);
363 if (*value > devclass_get_maxunit(ata_devclass) ||
364 !(device = devclass_get_device(ata_devclass, *value)))
366 /* XXX SOS should enable channel HW on controller */
367 error = ata_attach(device);
371 if (*value > devclass_get_maxunit(ata_devclass) ||
372 !(device = devclass_get_device(ata_devclass, *value)))
374 error = ata_detach(device);
375 /* XXX SOS should disable channel HW on controller */
379 if (devices->channel > devclass_get_maxunit(ata_devclass) ||
380 !(device = devclass_get_device(ata_devclass, devices->channel)))
382 bzero(devices->name[0], 32);
383 bzero(&devices->params[0], sizeof(struct ata_params));
384 bzero(devices->name[1], 32);
385 bzero(&devices->params[1], sizeof(struct ata_params));
386 if (!device_get_children(device, &children, &nchildren)) {
387 for (i = 0; i < nchildren; i++) {
388 if (children[i] && device_is_attached(children[i])) {
389 struct ata_device *atadev = device_get_softc(children[i]);
391 if (atadev->unit == ATA_MASTER) {
392 strncpy(devices->name[0],
393 device_get_nameunit(children[i]), 32);
394 bcopy(&atadev->param, &devices->params[0],
395 sizeof(struct ata_params));
397 if (atadev->unit == ATA_SLAVE) {
398 strncpy(devices->name[1],
399 device_get_nameunit(children[i]), 32);
400 bcopy(&atadev->param, &devices->params[1],
401 sizeof(struct ata_params));
405 free(children, M_TEMP);
413 if (ata_raid_ioctl_func)
414 error = ata_raid_ioctl_func(cmd, data);
420 ata_device_ioctl(device_t dev, u_long cmd, caddr_t data)
422 struct ata_device *atadev = device_get_softc(dev);
423 struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data;
424 struct ata_params *params = (struct ata_params *)data;
425 int *mode = (int *)data;
426 struct ata_request *request;
432 if (!(buf = malloc(ioc_request->count, M_ATA, M_NOWAIT))) {
435 if (!(request = ata_alloc_request())) {
439 if (ioc_request->flags & ATA_CMD_WRITE) {
440 error = copyin(ioc_request->data, buf, ioc_request->count);
443 ata_free_request(request);
448 if (ioc_request->flags & ATA_CMD_ATAPI) {
449 request->flags = ATA_R_ATAPI;
450 bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16);
453 request->u.ata.command = ioc_request->u.ata.command;
454 request->u.ata.feature = ioc_request->u.ata.feature;
455 request->u.ata.lba = ioc_request->u.ata.lba;
456 request->u.ata.count = ioc_request->u.ata.count;
458 request->timeout = ioc_request->timeout;
460 request->bytecount = ioc_request->count;
461 request->transfersize = request->bytecount;
462 if (ioc_request->flags & ATA_CMD_CONTROL)
463 request->flags |= ATA_R_CONTROL;
464 if (ioc_request->flags & ATA_CMD_READ)
465 request->flags |= ATA_R_READ;
466 if (ioc_request->flags & ATA_CMD_WRITE)
467 request->flags |= ATA_R_WRITE;
468 ata_queue_request(request);
469 if (!(request->flags & ATA_R_ATAPI)) {
470 ioc_request->u.ata.command = request->u.ata.command;
471 ioc_request->u.ata.feature = request->u.ata.feature;
472 ioc_request->u.ata.lba = request->u.ata.lba;
473 ioc_request->u.ata.count = request->u.ata.count;
475 ioc_request->error = request->result;
476 if (ioc_request->flags & ATA_CMD_READ)
477 error = copyout(buf, ioc_request->data, ioc_request->count);
481 ata_free_request(request);
485 bcopy(&atadev->param, params, sizeof(struct ata_params));
489 atadev->mode = *mode;
490 ATA_SETMODE(device_get_parent(dev), dev);
494 *mode = atadev->mode;
502 ata_boot_attach(void)
504 struct ata_channel *ch;
507 /* release the hook that got us here, only needed during boot */
508 if (ata_delayed_attach) {
509 config_intrhook_disestablish(ata_delayed_attach);
510 free(ata_delayed_attach, M_TEMP);
511 ata_delayed_attach = NULL;
514 /* kick of probe and attach on all channels */
515 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
516 if ((ch = devclass_get_softc(ata_devclass, ctlr))) {
517 ata_identify(ch->dev);
524 * misc support functions
527 ata_add_child(device_t parent, struct ata_device *atadev, int unit)
531 if ((child = device_add_child(parent, NULL, unit))) {
532 device_set_softc(child, atadev);
535 atadev->max_iosize = DEV_BSIZE;
536 atadev->mode = ATA_PIO_MAX;
542 ata_getparam(device_t parent, struct ata_device *atadev)
544 struct ata_channel *ch = device_get_softc(parent);
545 struct ata_request *request;
546 u_int8_t command = 0;
547 int error = ENOMEM, retries = 2;
550 (atadev->unit == ATA_MASTER ? ATA_ATA_MASTER : ATA_ATA_SLAVE))
551 command = ATA_ATA_IDENTIFY;
553 (atadev->unit == ATA_MASTER ? ATA_ATAPI_MASTER : ATA_ATAPI_SLAVE))
554 command = ATA_ATAPI_IDENTIFY;
558 while (retries-- > 0 && error) {
559 if (!(request = ata_alloc_request()))
561 request->dev = atadev->dev;
562 request->timeout = 1;
563 request->retries = 0;
564 request->u.ata.command = command;
565 request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT|ATA_R_QUIET);
566 request->data = (void *)&atadev->param;
567 request->bytecount = sizeof(struct ata_params);
568 request->donecount = 0;
569 request->transfersize = DEV_BSIZE;
570 ata_queue_request(request);
571 error = request->result;
572 ata_free_request(request);
575 if (!error && (isprint(atadev->param.model[0]) ||
576 isprint(atadev->param.model[1]))) {
577 struct ata_params *atacap = &atadev->param;
579 #if BYTE_ORDER == BIG_ENDIAN
582 for (ptr = (int16_t *)atacap;
583 ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) {
584 *ptr = bswap16(*ptr);
587 if (!(!strncmp(atacap->model, "FX", 2) ||
588 !strncmp(atacap->model, "NEC", 3) ||
589 !strncmp(atacap->model, "Pioneer", 7) ||
590 !strncmp(atacap->model, "SHARP", 5))) {
591 bswap(atacap->model, sizeof(atacap->model));
592 bswap(atacap->revision, sizeof(atacap->revision));
593 bswap(atacap->serial, sizeof(atacap->serial));
595 btrim(atacap->model, sizeof(atacap->model));
596 bpack(atacap->model, atacap->model, sizeof(atacap->model));
597 btrim(atacap->revision, sizeof(atacap->revision));
598 bpack(atacap->revision, atacap->revision, sizeof(atacap->revision));
599 btrim(atacap->serial, sizeof(atacap->serial));
600 bpack(atacap->serial, atacap->serial, sizeof(atacap->serial));
601 sprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision);
602 device_set_desc_copy(atadev->dev, buffer);
604 printf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n",
605 ch->unit, atadev->unit == ATA_MASTER ? "master":"slave",
606 ata_mode2str(ata_pmode(atacap)),
607 ata_mode2str(ata_wmode(atacap)),
608 ata_mode2str(ata_umode(atacap)),
609 (atacap->hwres & ATA_CABLE_ID) ? "80":"40");
611 if (atadev->param.config & ATA_PROTO_ATAPI) {
612 if (atapi_dma && ch->dma &&
613 (atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR &&
614 ata_umode(&atadev->param) >= ATA_UDMA2)
615 atadev->mode = ATA_DMA_MAX;
618 if (ata_dma && ch->dma)
619 atadev->mode = ATA_DMA_MAX;
630 ata_identify(device_t dev)
632 struct ata_channel *ch = device_get_softc(dev);
633 struct ata_device *master = NULL, *slave = NULL;
634 device_t master_child = NULL, slave_child = NULL;
635 int master_unit = -1, slave_unit = -1;
637 if (ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) {
638 if (!(master = malloc(sizeof(struct ata_device),
639 M_ATA, M_NOWAIT | M_ZERO))) {
640 device_printf(dev, "out of memory\n");
643 master->unit = ATA_MASTER;
645 if (ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) {
646 if (!(slave = malloc(sizeof(struct ata_device),
647 M_ATA, M_NOWAIT | M_ZERO))) {
649 device_printf(dev, "out of memory\n");
652 slave->unit = ATA_SLAVE;
656 if (ch->devices & ATA_ATA_MASTER)
657 master_unit = (device_get_unit(dev) << 1);
659 if (master && !(master_child = ata_add_child(dev, master, master_unit))) {
664 if (ch->devices & ATA_ATA_SLAVE)
665 slave_unit = (device_get_unit(dev) << 1) + 1;
667 if (slave && !(slave_child = ata_add_child(dev, slave, slave_unit))) {
672 if (slave && ata_getparam(dev, slave)) {
673 device_delete_child(dev, slave_child);
676 if (master && ata_getparam(dev, master)) {
677 device_delete_child(dev, master_child);
681 bus_generic_probe(dev);
682 bus_generic_attach(dev);
687 ata_default_registers(device_t dev)
689 struct ata_channel *ch = device_get_softc(dev);
691 /* fill in the defaults from whats setup already */
692 ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
693 ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
694 ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
695 ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
696 ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
697 ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
698 ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
699 ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
703 ata_modify_if_48bit(struct ata_request *request)
705 struct ata_device *atadev = device_get_softc(request->dev);
706 u_int8_t command = request->u.ata.command;
708 atadev->flags &= ~ATA_D_48BIT_ACTIVE;
710 if ((request->u.ata.lba >= ATA_MAX_28BIT_LBA ||
711 request->u.ata.count > 256) &&
712 atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
714 /* translate command into 48bit version */
717 command = ATA_READ48; break;
719 command = ATA_READ_MUL48; break;
721 command = ATA_READ_DMA48; break;
722 case ATA_READ_DMA_QUEUED:
723 command = ATA_READ_DMA_QUEUED48; break;
725 command = ATA_WRITE48; break;
727 command = ATA_WRITE_MUL48; break;
729 command = ATA_WRITE_DMA48; break;
730 case ATA_WRITE_DMA_QUEUED:
731 command = ATA_WRITE_DMA_QUEUED48; break;
733 command = ATA_FLUSHCACHE48; break;
737 atadev->flags |= ATA_D_48BIT_ACTIVE;
743 ata_udelay(int interval)
745 /* for now just use DELAY, the timer/sleep subsytems are not there yet */
746 if (1 || interval < (1000000/hz) || ata_delayed_attach)
749 tsleep(&interval, PRIBIO, "ataslp", interval/(1000000/hz));
753 ata_mode2str(int mode)
756 case ATA_PIO0: return "PIO0";
757 case ATA_PIO1: return "PIO1";
758 case ATA_PIO2: return "PIO2";
759 case ATA_PIO3: return "PIO3";
760 case ATA_PIO4: return "PIO4";
761 case ATA_WDMA0: return "WDMA0";
762 case ATA_WDMA1: return "WDMA1";
763 case ATA_WDMA2: return "WDMA2";
764 case ATA_UDMA0: return "UDMA16";
765 case ATA_UDMA1: return "UDMA25";
766 case ATA_UDMA2: return "UDMA33";
767 case ATA_UDMA3: return "UDMA40";
768 case ATA_UDMA4: return "UDMA66";
769 case ATA_UDMA5: return "UDMA100";
770 case ATA_UDMA6: return "UDMA133";
771 case ATA_SA150: return "SATA150";
773 if (mode & ATA_DMA_MASK)
781 ata_pmode(struct ata_params *ap)
783 if (ap->atavalid & ATA_FLAG_64_70) {
784 if (ap->apiomodes & 0x02)
786 if (ap->apiomodes & 0x01)
789 if (ap->mwdmamodes & 0x04)
791 if (ap->mwdmamodes & 0x02)
793 if (ap->mwdmamodes & 0x01)
795 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
797 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
799 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
805 ata_wmode(struct ata_params *ap)
807 if (ap->mwdmamodes & 0x04)
809 if (ap->mwdmamodes & 0x02)
811 if (ap->mwdmamodes & 0x01)
817 ata_umode(struct ata_params *ap)
819 if (ap->atavalid & ATA_FLAG_88) {
820 if (ap->udmamodes & 0x40)
822 if (ap->udmamodes & 0x20)
824 if (ap->udmamodes & 0x10)
826 if (ap->udmamodes & 0x08)
828 if (ap->udmamodes & 0x04)
830 if (ap->udmamodes & 0x02)
832 if (ap->udmamodes & 0x01)
839 ata_limit_mode(device_t dev, int mode, int maxmode)
841 struct ata_device *atadev = device_get_softc(dev);
843 if (maxmode && mode > maxmode)
846 if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0)
847 return min(mode, ata_umode(&atadev->param));
849 if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0)
850 return min(mode, ata_wmode(&atadev->param));
852 if (mode > ata_pmode(&atadev->param))
853 return min(mode, ata_pmode(&atadev->param));
859 bswap(int8_t *buf, int len)
861 u_int16_t *ptr = (u_int16_t*)(buf + len);
863 while (--ptr >= (u_int16_t*)buf)
868 btrim(int8_t *buf, int len)
872 for (ptr = buf; ptr < buf+len; ++ptr)
873 if (!*ptr || *ptr == '_')
875 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
880 bpack(int8_t *src, int8_t *dst, int len)
884 for (i = j = blank = 0 ; i < len; i++) {
885 if (blank && src[i] == ' ') continue;
886 if (blank && src[i] != ' ') {
907 ata_module_event_handler(module_t mod, int what, void *arg)
909 static struct cdev *atacdev;
913 /* register controlling device */
914 atacdev = make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata");
917 /* register boot attach to be run when interrupts are enabled */
918 if (!(ata_delayed_attach = (struct intr_config_hook *)
919 malloc(sizeof(struct intr_config_hook),
920 M_TEMP, M_NOWAIT | M_ZERO))) {
921 printf("ata: malloc of delayed attach hook failed\n");
924 ata_delayed_attach->ich_func = (void*)ata_boot_attach;
925 if (config_intrhook_establish(ata_delayed_attach) != 0) {
926 printf("ata: config_intrhook_establish failed\n");
927 free(ata_delayed_attach, M_TEMP);
933 /* deregister controlling device */
934 destroy_dev(atacdev);
942 static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
943 DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
944 MODULE_VERSION(ata, 1);
949 ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request),
950 NULL, NULL, NULL, NULL, 0, 0);
951 ata_composite_zone = uma_zcreate("ata_composite",
952 sizeof(struct ata_composite),
953 NULL, NULL, NULL, NULL, 0, 0);
955 SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
960 uma_zdestroy(ata_composite_zone);
961 uma_zdestroy(ata_request_zone);
963 SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);