2 * Copyright (c) 1998 - 2007 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;
78 int ata_dma_check_80pin = 1;
81 static int ata_dma = 1;
82 static int atapi_dma = 1;
85 SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
86 TUNABLE_INT("hw.ata.ata_dma", &ata_dma);
87 SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0,
88 "ATA disk DMA mode control");
89 TUNABLE_INT("hw.ata.ata_dma_check_80pin", &ata_dma_check_80pin);
90 SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma_check_80pin,
91 CTLFLAG_RDTUN, &ata_dma_check_80pin, 1,
92 "Check for 80pin cable before setting ATA DMA mode");
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)
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, NULL,
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 valid channel to detach */
165 /* grap the channel lock so no new requests gets launched */
166 mtx_lock(&ch->state_mtx);
167 ch->state |= ATA_STALL_QUEUE;
168 mtx_unlock(&ch->state_mtx);
170 /* detach & delete all children */
171 if (!device_get_children(dev, &children, &nchildren)) {
172 for (i = 0; i < nchildren; i++)
174 device_delete_child(dev, children[i]);
175 free(children, M_TEMP);
178 /* release resources */
179 bus_teardown_intr(dev, ch->r_irq, ch->ih);
180 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
182 mtx_destroy(&ch->state_mtx);
183 mtx_destroy(&ch->queue_mtx);
188 ata_reinit(device_t dev)
190 struct ata_channel *ch = device_get_softc(dev);
191 struct ata_request *request;
195 /* check that we have a valid channel to reinit */
196 if (!ch || !ch->r_irq)
200 device_printf(dev, "reiniting channel ..\n");
202 /* poll for locking the channel */
203 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
206 /* catch eventual request in ch->running */
207 mtx_lock(&ch->state_mtx);
208 if ((request = ch->running))
209 callout_stop(&request->callout);
212 /* unconditionally grap the channel lock */
213 ch->state |= ATA_STALL_QUEUE;
214 mtx_unlock(&ch->state_mtx);
216 /* reset the controller HW, the channel and device(s) */
219 /* reinit the children and delete any that fails */
220 if (!device_get_children(dev, &children, &nchildren)) {
221 mtx_lock(&Giant); /* newbus suckage it needs Giant */
222 for (i = 0; i < nchildren; i++) {
223 /* did any children go missing ? */
224 if (children[i] && device_is_attached(children[i]) &&
225 ATA_REINIT(children[i])) {
227 * if we had a running request and its device matches
228 * this child we need to inform the request that the
231 if (request && request->dev == children[i]) {
232 request->result = ENXIO;
233 device_printf(request->dev, "FAILURE - device detached\n");
235 /* if not timeout finish request here */
236 if (!(request->flags & ATA_R_TIMEOUT))
240 device_delete_child(dev, children[i]);
243 free(children, M_TEMP);
244 mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
247 /* if we still have a good request put it on the queue again */
248 if (request && !(request->flags & ATA_R_TIMEOUT)) {
249 device_printf(request->dev,
250 "WARNING - %s requeued due to channel reset",
251 ata_cmd2str(request));
252 if (!(request->flags & (ATA_R_ATAPI | ATA_R_CONTROL)))
253 printf(" LBA=%ju", request->u.ata.lba);
255 request->flags |= ATA_R_REQUEUE;
256 ata_queue_request(request);
259 /* we're done release the channel for new work */
260 mtx_lock(&ch->state_mtx);
261 ch->state = ATA_IDLE;
262 mtx_unlock(&ch->state_mtx);
263 ATA_LOCKING(dev, ATA_LF_UNLOCK);
266 device_printf(dev, "reinit done ..\n");
268 /* kick off requests on the queue */
274 ata_suspend(device_t dev)
276 struct ata_channel *ch;
278 /* check for valid device */
279 if (!dev || !(ch = device_get_softc(dev)))
282 /* wait for the channel to be IDLE or detached before suspending */
284 mtx_lock(&ch->state_mtx);
285 if (ch->state == ATA_IDLE) {
286 ch->state = ATA_ACTIVE;
287 mtx_unlock(&ch->state_mtx);
290 mtx_unlock(&ch->state_mtx);
291 tsleep(ch, PRIBIO, "atasusp", hz/10);
293 ATA_LOCKING(dev, ATA_LF_UNLOCK);
298 ata_resume(device_t dev)
300 struct ata_channel *ch;
303 /* check for valid device */
304 if (!dev || !(ch = device_get_softc(dev)))
307 /* reinit the devices, we dont know what mode/state they are in */
308 error = ata_reinit(dev);
310 /* kick off requests on the queue */
316 ata_interrupt(void *data)
318 struct ata_channel *ch = (struct ata_channel *)data;
319 struct ata_request *request;
321 mtx_lock(&ch->state_mtx);
323 /* ignore interrupt if its not for us */
324 if (ch->hw.status && !ch->hw.status(ch->dev))
327 /* do we have a running request */
328 if (!(request = ch->running))
331 ATA_DEBUG_RQ(request, "interrupt");
333 /* safetycheck for the right state */
334 if (ch->state == ATA_IDLE) {
335 device_printf(request->dev, "interrupt on idle channel ignored\n");
340 * we have the HW locks, so end the transaction for this request
341 * if it finishes immediately otherwise wait for next interrupt
343 if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
345 if (ch->state == ATA_ACTIVE)
346 ch->state = ATA_IDLE;
347 mtx_unlock(&ch->state_mtx);
348 ATA_LOCKING(ch->dev, ATA_LF_UNLOCK);
353 mtx_unlock(&ch->state_mtx);
357 * device related interfaces
360 ata_ioctl(struct cdev *dev, u_long cmd, caddr_t data,
361 int32_t flag, struct thread *td)
363 device_t device, *children;
364 struct ata_ioc_devices *devices = (struct ata_ioc_devices *)data;
365 int *value = (int *)data;
366 int i, nchildren, error = ENOTTY;
369 case IOCATAGMAXCHANNEL:
370 /* In case we have channel 0..n this will return n+1. */
371 *value = devclass_get_maxunit(ata_devclass);
376 if (*value >= devclass_get_maxunit(ata_devclass) ||
377 !(device = devclass_get_device(ata_devclass, *value)))
379 error = ata_reinit(device);
383 if (*value >= devclass_get_maxunit(ata_devclass) ||
384 !(device = devclass_get_device(ata_devclass, *value)))
386 /* XXX SOS should enable channel HW on controller */
387 error = ata_attach(device);
391 if (*value >= devclass_get_maxunit(ata_devclass) ||
392 !(device = devclass_get_device(ata_devclass, *value)))
394 error = ata_detach(device);
395 /* XXX SOS should disable channel HW on controller */
399 if (devices->channel >= devclass_get_maxunit(ata_devclass) ||
400 !(device = devclass_get_device(ata_devclass, devices->channel)))
402 bzero(devices->name[0], 32);
403 bzero(&devices->params[0], sizeof(struct ata_params));
404 bzero(devices->name[1], 32);
405 bzero(&devices->params[1], sizeof(struct ata_params));
406 if (!device_get_children(device, &children, &nchildren)) {
407 for (i = 0; i < nchildren; i++) {
408 if (children[i] && device_is_attached(children[i])) {
409 struct ata_device *atadev = device_get_softc(children[i]);
411 if (atadev->unit == ATA_MASTER) {
412 strncpy(devices->name[0],
413 device_get_nameunit(children[i]), 32);
414 bcopy(&atadev->param, &devices->params[0],
415 sizeof(struct ata_params));
417 if (atadev->unit == ATA_SLAVE) {
418 strncpy(devices->name[1],
419 device_get_nameunit(children[i]), 32);
420 bcopy(&atadev->param, &devices->params[1],
421 sizeof(struct ata_params));
425 free(children, M_TEMP);
433 if (ata_raid_ioctl_func)
434 error = ata_raid_ioctl_func(cmd, data);
440 ata_device_ioctl(device_t dev, u_long cmd, caddr_t data)
442 struct ata_device *atadev = device_get_softc(dev);
443 struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data;
444 struct ata_params *params = (struct ata_params *)data;
445 int *mode = (int *)data;
446 struct ata_request *request;
452 if (!(buf = malloc(ioc_request->count, M_ATA, M_NOWAIT))) {
455 if (!(request = ata_alloc_request())) {
459 if (ioc_request->flags & ATA_CMD_WRITE) {
460 error = copyin(ioc_request->data, buf, ioc_request->count);
463 ata_free_request(request);
468 if (ioc_request->flags & ATA_CMD_ATAPI) {
469 request->flags = ATA_R_ATAPI;
470 bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16);
473 request->u.ata.command = ioc_request->u.ata.command;
474 request->u.ata.feature = ioc_request->u.ata.feature;
475 request->u.ata.lba = ioc_request->u.ata.lba;
476 request->u.ata.count = ioc_request->u.ata.count;
478 request->timeout = ioc_request->timeout;
480 request->bytecount = ioc_request->count;
481 request->transfersize = request->bytecount;
482 if (ioc_request->flags & ATA_CMD_CONTROL)
483 request->flags |= ATA_R_CONTROL;
484 if (ioc_request->flags & ATA_CMD_READ)
485 request->flags |= ATA_R_READ;
486 if (ioc_request->flags & ATA_CMD_WRITE)
487 request->flags |= ATA_R_WRITE;
488 ata_queue_request(request);
489 if (request->flags & ATA_R_ATAPI) {
490 bcopy(&request->u.atapi.sense, &ioc_request->u.atapi.sense,
491 sizeof(struct atapi_sense));
494 ioc_request->u.ata.command = request->u.ata.command;
495 ioc_request->u.ata.feature = request->u.ata.feature;
496 ioc_request->u.ata.lba = request->u.ata.lba;
497 ioc_request->u.ata.count = request->u.ata.count;
499 ioc_request->error = request->result;
500 if (ioc_request->flags & ATA_CMD_READ)
501 error = copyout(buf, ioc_request->data, ioc_request->count);
505 ata_free_request(request);
509 ata_getparam(atadev, 0);
510 bcopy(&atadev->param, params, sizeof(struct ata_params));
514 atadev->mode = *mode;
515 ATA_SETMODE(device_get_parent(dev), dev);
519 *mode = atadev->mode;
521 case IOCATASSPINDOWN:
522 atadev->spindown = *mode;
524 case IOCATAGSPINDOWN:
525 *mode = atadev->spindown;
533 ata_boot_attach(void)
535 struct ata_channel *ch;
538 mtx_lock(&Giant); /* newbus suckage it needs Giant */
540 /* kick of probe and attach on all channels */
541 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
542 if ((ch = devclass_get_softc(ata_devclass, ctlr))) {
543 ata_identify(ch->dev);
547 /* release the hook that got us here, we are only needed once during boot */
548 if (ata_delayed_attach) {
549 config_intrhook_disestablish(ata_delayed_attach);
550 free(ata_delayed_attach, M_TEMP);
551 ata_delayed_attach = NULL;
554 mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
559 * misc support functions
562 ata_add_child(device_t parent, struct ata_device *atadev, int unit)
566 if ((child = device_add_child(parent, NULL, unit))) {
567 device_set_softc(child, atadev);
570 atadev->max_iosize = DEV_BSIZE;
571 atadev->mode = ATA_PIO_MAX;
577 ata_getparam(struct ata_device *atadev, int init)
579 struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev));
580 struct ata_request *request;
581 u_int8_t command = 0;
582 int error = ENOMEM, retries = 2;
585 (atadev->unit == ATA_MASTER ? ATA_ATA_MASTER : ATA_ATA_SLAVE))
586 command = ATA_ATA_IDENTIFY;
588 (atadev->unit == ATA_MASTER ? ATA_ATAPI_MASTER : ATA_ATAPI_SLAVE))
589 command = ATA_ATAPI_IDENTIFY;
593 while (retries-- > 0 && error) {
594 if (!(request = ata_alloc_request()))
596 request->dev = atadev->dev;
597 request->timeout = 1;
598 request->retries = 0;
599 request->u.ata.command = command;
600 request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT|ATA_R_QUIET);
601 request->data = (void *)&atadev->param;
602 request->bytecount = sizeof(struct ata_params);
603 request->donecount = 0;
604 request->transfersize = DEV_BSIZE;
605 ata_queue_request(request);
606 error = request->result;
607 ata_free_request(request);
610 if (!error && (isprint(atadev->param.model[0]) ||
611 isprint(atadev->param.model[1]))) {
612 struct ata_params *atacap = &atadev->param;
616 for (ptr = (int16_t *)atacap;
617 ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) {
618 *ptr = le16toh(*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 device_get_unit(ch->dev),
638 atadev->unit == ATA_MASTER ? "master" : "slave",
639 ata_mode2str(ata_pmode(atacap)),
640 ata_mode2str(ata_wmode(atacap)),
641 ata_mode2str(ata_umode(atacap)),
642 (atacap->hwres & ATA_CABLE_ID) ? "80":"40");
645 sprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision);
646 device_set_desc_copy(atadev->dev, buffer);
647 if ((atadev->param.config & ATA_PROTO_ATAPI) &&
648 (atadev->param.config != ATA_CFA_MAGIC1) &&
649 (atadev->param.config != ATA_CFA_MAGIC2)) {
650 if (atapi_dma && ch->dma &&
651 (atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR &&
652 ata_umode(&atadev->param) >= ATA_UDMA2)
653 atadev->mode = ATA_DMA_MAX;
656 if (ata_dma && ch->dma &&
657 (ata_umode(&atadev->param) > 0 ||
658 ata_wmode(&atadev->param) > 0))
659 atadev->mode = ATA_DMA_MAX;
671 ata_identify(device_t dev)
673 struct ata_channel *ch = device_get_softc(dev);
674 struct ata_device *master = NULL, *slave = NULL;
675 device_t master_child = NULL, slave_child = NULL;
676 int master_unit = -1, slave_unit = -1;
678 if (ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) {
679 if (!(master = malloc(sizeof(struct ata_device),
680 M_ATA, M_NOWAIT | M_ZERO))) {
681 device_printf(dev, "out of memory\n");
684 master->unit = ATA_MASTER;
686 if (ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) {
687 if (!(slave = malloc(sizeof(struct ata_device),
688 M_ATA, M_NOWAIT | M_ZERO))) {
690 device_printf(dev, "out of memory\n");
693 slave->unit = ATA_SLAVE;
697 if (ch->devices & ATA_ATA_MASTER)
698 master_unit = (device_get_unit(dev) << 1);
700 if (master && !(master_child = ata_add_child(dev, master, master_unit))) {
705 if (ch->devices & ATA_ATA_SLAVE)
706 slave_unit = (device_get_unit(dev) << 1) + 1;
708 if (slave && !(slave_child = ata_add_child(dev, slave, slave_unit))) {
713 if (slave && ata_getparam(slave, 1)) {
714 device_delete_child(dev, slave_child);
717 if (master && ata_getparam(master, 1)) {
718 device_delete_child(dev, master_child);
722 bus_generic_probe(dev);
723 bus_generic_attach(dev);
728 ata_default_registers(device_t dev)
730 struct ata_channel *ch = device_get_softc(dev);
732 /* fill in the defaults from whats setup already */
733 ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
734 ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
735 ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
736 ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
737 ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
738 ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
739 ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
740 ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
744 ata_modify_if_48bit(struct ata_request *request)
746 struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
747 struct ata_device *atadev = device_get_softc(request->dev);
749 atadev->flags &= ~ATA_D_48BIT_ACTIVE;
751 if (((request->u.ata.lba + request->u.ata.count) >= ATA_MAX_28BIT_LBA ||
752 request->u.ata.count > 256) &&
753 atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
755 /* translate command into 48bit version */
756 switch (request->u.ata.command) {
758 request->u.ata.command = ATA_READ48;
761 request->u.ata.command = ATA_READ_MUL48;
764 if (ch->flags & ATA_NO_48BIT_DMA) {
765 if (request->transfersize > DEV_BSIZE)
766 request->u.ata.command = ATA_READ_MUL48;
768 request->u.ata.command = ATA_READ48;
769 request->flags &= ~ATA_R_DMA;
772 request->u.ata.command = ATA_READ_DMA48;
774 case ATA_READ_DMA_QUEUED:
775 if (ch->flags & ATA_NO_48BIT_DMA) {
776 if (request->transfersize > DEV_BSIZE)
777 request->u.ata.command = ATA_READ_MUL48;
779 request->u.ata.command = ATA_READ48;
780 request->flags &= ~ATA_R_DMA;
783 request->u.ata.command = ATA_READ_DMA_QUEUED48;
786 request->u.ata.command = ATA_WRITE48;
789 request->u.ata.command = ATA_WRITE_MUL48;
792 if (ch->flags & ATA_NO_48BIT_DMA) {
793 if (request->transfersize > DEV_BSIZE)
794 request->u.ata.command = ATA_WRITE_MUL48;
796 request->u.ata.command = ATA_WRITE48;
797 request->flags &= ~ATA_R_DMA;
800 request->u.ata.command = ATA_WRITE_DMA48;
802 case ATA_WRITE_DMA_QUEUED:
803 if (ch->flags & ATA_NO_48BIT_DMA) {
804 if (request->transfersize > DEV_BSIZE)
805 request->u.ata.command = ATA_WRITE_MUL48;
807 request->u.ata.command = ATA_WRITE48;
808 request->u.ata.command = ATA_WRITE48;
809 request->flags &= ~ATA_R_DMA;
812 request->u.ata.command = ATA_WRITE_DMA_QUEUED48;
815 request->u.ata.command = ATA_FLUSHCACHE48;
817 case ATA_READ_NATIVE_MAX_ADDDRESS:
818 request->u.ata.command = ATA_READ_NATIVE_MAX_ADDDRESS48;
820 case ATA_SET_MAX_ADDRESS:
821 request->u.ata.command = ATA_SET_MAX_ADDRESS48;
826 atadev->flags |= ATA_D_48BIT_ACTIVE;
831 ata_udelay(int interval)
833 /* for now just use DELAY, the timer/sleep subsytems are not there yet */
834 if (1 || interval < (1000000/hz) || ata_delayed_attach)
837 pause("ataslp", interval/(1000000/hz));
841 ata_mode2str(int mode)
844 case -1: return "UNSUPPORTED";
845 case ATA_PIO0: return "PIO0";
846 case ATA_PIO1: return "PIO1";
847 case ATA_PIO2: return "PIO2";
848 case ATA_PIO3: return "PIO3";
849 case ATA_PIO4: return "PIO4";
850 case ATA_WDMA0: return "WDMA0";
851 case ATA_WDMA1: return "WDMA1";
852 case ATA_WDMA2: return "WDMA2";
853 case ATA_UDMA0: return "UDMA16";
854 case ATA_UDMA1: return "UDMA25";
855 case ATA_UDMA2: return "UDMA33";
856 case ATA_UDMA3: return "UDMA40";
857 case ATA_UDMA4: return "UDMA66";
858 case ATA_UDMA5: return "UDMA100";
859 case ATA_UDMA6: return "UDMA133";
860 case ATA_SA150: return "SATA150";
861 case ATA_SA300: return "SATA300";
862 case ATA_USB: return "USB";
863 case ATA_USB1: return "USB1";
864 case ATA_USB2: return "USB2";
866 if (mode & ATA_DMA_MASK)
874 ata_pmode(struct ata_params *ap)
876 if (ap->atavalid & ATA_FLAG_64_70) {
877 if (ap->apiomodes & 0x02)
879 if (ap->apiomodes & 0x01)
882 if (ap->mwdmamodes & 0x04)
884 if (ap->mwdmamodes & 0x02)
886 if (ap->mwdmamodes & 0x01)
888 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
890 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
892 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
898 ata_wmode(struct ata_params *ap)
900 if (ap->mwdmamodes & 0x04)
902 if (ap->mwdmamodes & 0x02)
904 if (ap->mwdmamodes & 0x01)
910 ata_umode(struct ata_params *ap)
912 if (ap->atavalid & ATA_FLAG_88) {
913 if (ap->udmamodes & 0x40)
915 if (ap->udmamodes & 0x20)
917 if (ap->udmamodes & 0x10)
919 if (ap->udmamodes & 0x08)
921 if (ap->udmamodes & 0x04)
923 if (ap->udmamodes & 0x02)
925 if (ap->udmamodes & 0x01)
932 ata_limit_mode(device_t dev, int mode, int maxmode)
934 struct ata_device *atadev = device_get_softc(dev);
936 if (maxmode && mode > maxmode)
939 if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0)
940 return min(mode, ata_umode(&atadev->param));
942 if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0)
943 return min(mode, ata_wmode(&atadev->param));
945 if (mode > ata_pmode(&atadev->param))
946 return min(mode, ata_pmode(&atadev->param));
952 bswap(int8_t *buf, int len)
954 u_int16_t *ptr = (u_int16_t*)(buf + len);
956 while (--ptr >= (u_int16_t*)buf)
961 btrim(int8_t *buf, int len)
965 for (ptr = buf; ptr < buf+len; ++ptr)
966 if (!*ptr || *ptr == '_')
968 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
973 bpack(int8_t *src, int8_t *dst, int len)
977 for (i = j = blank = 0 ; i < len; i++) {
978 if (blank && src[i] == ' ') continue;
979 if (blank && src[i] != ' ') {
1000 ata_module_event_handler(module_t mod, int what, void *arg)
1002 static struct cdev *atacdev;
1006 /* register controlling device */
1007 atacdev = make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata");
1010 /* register boot attach to be run when interrupts are enabled */
1011 if (!(ata_delayed_attach = (struct intr_config_hook *)
1012 malloc(sizeof(struct intr_config_hook),
1013 M_TEMP, M_NOWAIT | M_ZERO))) {
1014 printf("ata: malloc of delayed attach hook failed\n");
1017 ata_delayed_attach->ich_func = (void*)ata_boot_attach;
1018 if (config_intrhook_establish(ata_delayed_attach) != 0) {
1019 printf("ata: config_intrhook_establish failed\n");
1020 free(ata_delayed_attach, M_TEMP);
1026 /* deregister controlling device */
1027 destroy_dev(atacdev);
1035 static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
1036 DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
1037 MODULE_VERSION(ata, 1);
1042 ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request),
1043 NULL, NULL, NULL, NULL, 0, 0);
1044 ata_composite_zone = uma_zcreate("ata_composite",
1045 sizeof(struct ata_composite),
1046 NULL, NULL, NULL, NULL, 0, 0);
1048 SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
1053 uma_zdestroy(ata_composite_zone);
1054 uma_zdestroy(ata_request_zone);
1056 SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);