2 * Copyright (c) 1998 - 2006 Søren Schmidt <sos@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 * $FreeBSD: src/sys/dev/ata/ata-all.c,v 1.273 2006/05/12 05:04:40 jhb Exp $
27 * $DragonFly: src/sys/dev/disk/nata/ata-all.c,v 1.7 2007/01/09 21:17:00 tgen Exp $
32 #include <sys/param.h>
34 #include <sys/callout.h>
36 #include <sys/ctype.h>
37 #include <sys/device.h>
38 #include <sys/endian.h>
39 #include <sys/kernel.h>
40 #include <sys/libkern.h>
41 #include <sys/lock.h> /* for {get,rel}_mplock() */
42 #include <sys/malloc.h>
43 #include <sys/module.h>
45 #include <sys/objcache.h>
46 #include <sys/queue.h>
47 #include <sys/spinlock2.h>
48 #include <sys/sysctl.h>
49 #include <sys/systm.h>
54 /* device structure */
55 static d_ioctl_t ata_ioctl;
56 static struct dev_ops ata_ops = {
64 static void ata_boot_attach(void);
65 static device_t ata_add_child(device_t, struct ata_device *, int);
66 static int ata_getparam(struct ata_device *, int);
67 static void bswap(int8_t *, int);
68 static void btrim(int8_t *, int);
69 static void bpack(int8_t *, int8_t *, int);
72 MALLOC_DEFINE(M_ATA, "ata_generic", "ATA driver generic layer");
73 int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL;
74 struct intr_config_hook *ata_delayed_attach = NULL;
75 devclass_t ata_devclass;
76 struct objcache *ata_request_cache;
77 struct objcache *ata_composite_cache;
78 struct objcache_malloc_args ata_request_malloc_args = {
79 sizeof(struct ata_request), M_ATA };
80 struct objcache_malloc_args ata_composite_malloc_args = {
81 sizeof(struct ata_composite), M_ATA };
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_RW, &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_RW, &atapi_dma, 0,
95 "ATAPI device DMA mode control");
96 TUNABLE_INT("hw.ata.wc", &ata_wc);
97 SYSCTL_INT(_hw_ata, OID_AUTO, ata_wc, CTLFLAG_RW, &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 spin_init(&ch->state_mtx);
123 spin_init(&ch->queue_mtx);
124 TAILQ_INIT(&ch->ata_queue);
126 /* reset the controller HW, the channel and device(s) */
127 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
128 tsleep(&error, 0, "ataatch", 1);
130 ATA_LOCKING(dev, ATA_LF_UNLOCK);
132 /* setup interrupt delivery */
134 ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
135 RF_SHAREABLE | RF_ACTIVE);
137 device_printf(dev, "unable to allocate interrupt\n");
140 if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS,
141 (driver_intr_t *)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 /* grap the channel lock so no new requests gets launched */
165 spin_lock_wr(&ch->state_mtx);
166 ch->state |= ATA_STALL_QUEUE;
167 spin_unlock_wr(&ch->state_mtx);
169 /* detach & delete all children */
170 if (!device_get_children(dev, &children, &nchildren)) {
171 for (i = 0; i < nchildren; i++)
173 device_delete_child(dev, children[i]);
174 kfree(children, M_TEMP);
177 /* release resources */
178 bus_teardown_intr(dev, ch->r_irq, ch->ih);
179 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
181 spin_uninit(&ch->state_mtx);
182 spin_uninit(&ch->queue_mtx);
187 ata_reinit(device_t dev)
189 struct ata_channel *ch = device_get_softc(dev);
190 struct ata_request *request;
194 /* check that we have a valid channel to reinit */
195 if (!ch || !ch->r_irq)
199 device_printf(dev, "reiniting channel ..\n");
201 /* poll for locking the channel */
202 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
203 tsleep(&dev, 0, "atarini", 1);
205 /* catch eventual request in ch->running */
206 spin_lock_wr(&ch->state_mtx);
207 if ((request = ch->running))
208 callout_stop(&request->callout);
211 /* unconditionally grap the channel lock */
212 ch->state |= ATA_STALL_QUEUE;
213 spin_unlock_wr(&ch->state_mtx);
215 /* reset the controller HW, the channel and device(s) */
218 /* reinit the children and delete any that fails */
219 if (!device_get_children(dev, &children, &nchildren)) {
221 for (i = 0; i < nchildren; i++) {
222 /* did any children go missing ? */
223 if (children[i] && device_is_attached(children[i]) &&
224 ATA_REINIT(children[i])) {
226 * if we had a running request and its device matches
227 * this child we need to inform the request that the
230 if (request && request->dev == children[i]) {
231 request->result = ENXIO;
232 device_printf(request->dev, "FAILURE - device detached\n");
234 /* if not timeout finish request here */
235 if (!(request->flags & ATA_R_TIMEOUT))
239 device_delete_child(dev, children[i]);
242 kfree(children, M_TEMP);
246 /* if we still have a good request put it on the queue again */
247 if (request && !(request->flags & ATA_R_TIMEOUT)) {
248 device_printf(request->dev,
249 "WARNING - %s requeued due to channel reset",
250 ata_cmd2str(request));
251 if (!(request->flags & (ATA_R_ATAPI | ATA_R_CONTROL)))
252 kprintf(" LBA=%ju", request->u.ata.lba);
254 request->flags |= ATA_R_REQUEUE;
255 ata_queue_request(request);
258 /* we're done release the channel for new work */
259 spin_lock_wr(&ch->state_mtx);
260 ch->state = ATA_IDLE;
261 spin_unlock_wr(&ch->state_mtx);
262 ATA_LOCKING(dev, ATA_LF_UNLOCK);
265 device_printf(dev, "reinit done ..\n");
267 /* kick off requests on the queue */
273 ata_suspend(device_t dev)
275 struct ata_channel *ch;
277 /* check for valid device */
278 if (!dev || !(ch = device_get_softc(dev)))
281 /* wait for the channel to be IDLE or detached before suspending */
283 spin_lock_wr(&ch->state_mtx);
284 if (ch->state == ATA_IDLE) {
285 ch->state = ATA_ACTIVE;
286 spin_unlock_wr(&ch->state_mtx);
289 spin_unlock_wr(&ch->state_mtx);
290 tsleep(ch, 0, "atasusp", hz/10);
292 ATA_LOCKING(dev, ATA_LF_UNLOCK);
297 ata_resume(device_t dev)
299 struct ata_channel *ch;
302 /* check for valid device */
303 if (!dev || !(ch = device_get_softc(dev)))
306 /* reinit the devices, we dont know what mode/state they are in */
307 error = ata_reinit(dev);
309 /* kick off requests on the queue */
315 ata_interrupt(void *data)
317 struct ata_channel *ch = (struct ata_channel *)data;
318 struct ata_request *request;
320 spin_lock_wr(&ch->state_mtx);
322 /* ignore interrupt if its not for us */
323 if (ch->hw.status && !ch->hw.status(ch->dev))
326 /* do we have a running request */
327 if (!(request = ch->running))
330 /* XXX TGEN Ignore weird ATAPI+DMA interrupts on SMP */
331 if (ch->dma && (request->flags & ATA_R_ATAPI)) {
332 int status = ATA_IDX_INB(ch, ATA_STATUS);
333 int error = ATA_IDX_INB(ch, ATA_ERROR);
334 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
335 if (((status & (ATA_S_DWF|ATA_S_DRQ)) == (ATA_S_DWF|ATA_S_DRQ)) &&
336 ((error & ATA_E_ILI) == ATA_E_ILI) &&
337 !(bmstat & ATA_BMSTAT_ERROR)) {
339 device_printf(request->dev, "ignoring weird interrupt\n");
344 ATA_DEBUG_RQ(request, "interrupt");
346 /* safetycheck for the right state */
347 if (ch->state == ATA_IDLE) {
348 device_printf(request->dev, "interrupt on idle channel ignored\n");
353 * we have the HW locks, so end the transaction for this request
354 * if it finishes immediately otherwise wait for next interrupt
356 if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
358 if (ch->state == ATA_ACTIVE)
359 ch->state = ATA_IDLE;
360 spin_unlock_wr(&ch->state_mtx);
361 ATA_LOCKING(ch->dev, ATA_LF_UNLOCK);
366 spin_unlock_wr(&ch->state_mtx);
371 * device related interfaces
374 ata_ioctl(struct dev_ioctl_args *ap)
376 device_t device, *children;
377 struct ata_ioc_devices *devices = (struct ata_ioc_devices *)ap->a_data;
378 int *value = (int *)ap->a_data;
379 int i, nchildren, error = ENOTTY;
382 case IOCATAGMAXCHANNEL:
383 *value = devclass_get_maxunit(ata_devclass);
388 if (*value > devclass_get_maxunit(ata_devclass) ||
389 !(device = devclass_get_device(ata_devclass, *value)))
391 error = ata_reinit(device);
396 if (*value > devclass_get_maxunit(ata_devclass) ||
397 !(device = devclass_get_device(ata_devclass, *value)))
399 /* XXX SOS should enable channel HW on controller */
400 error = ata_attach(device);
404 if (*value > devclass_get_maxunit(ata_devclass) ||
405 !(device = devclass_get_device(ata_devclass, *value)))
407 error = ata_detach(device);
408 /* XXX SOS should disable channel HW on controller */
412 if (devices->channel > devclass_get_maxunit(ata_devclass) ||
413 !(device = devclass_get_device(ata_devclass, devices->channel)))
415 bzero(devices->name[0], 32);
416 bzero(&devices->params[0], sizeof(struct ata_params));
417 bzero(devices->name[1], 32);
418 bzero(&devices->params[1], sizeof(struct ata_params));
419 if (!device_get_children(device, &children, &nchildren)) {
420 for (i = 0; i < nchildren; i++) {
421 if (children[i] && device_is_attached(children[i])) {
422 struct ata_device *atadev = device_get_softc(children[i]);
424 if (atadev->unit == ATA_MASTER) {
425 strncpy(devices->name[0],
426 device_get_nameunit(children[i]), 32);
427 bcopy(&atadev->param, &devices->params[0],
428 sizeof(struct ata_params));
430 if (atadev->unit == ATA_SLAVE) {
431 strncpy(devices->name[1],
432 device_get_nameunit(children[i]), 32);
433 bcopy(&atadev->param, &devices->params[1],
434 sizeof(struct ata_params));
438 kfree(children, M_TEMP);
446 if (ata_raid_ioctl_func)
447 error = ata_raid_ioctl_func(ap->a_cmd, ap->a_data);
453 ata_device_ioctl(device_t dev, u_long cmd, caddr_t data)
455 struct ata_device *atadev = device_get_softc(dev);
456 struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data;
457 struct ata_params *params = (struct ata_params *)data;
458 int *mode = (int *)data;
459 struct ata_request *request;
465 if (!(buf = kmalloc(ioc_request->count, M_ATA, M_NOWAIT))) {
468 if (!(request = ata_alloc_request())) {
472 if (ioc_request->flags & ATA_CMD_WRITE) {
473 error = copyin(ioc_request->data, buf, ioc_request->count);
476 ata_free_request(request);
481 if (ioc_request->flags & ATA_CMD_ATAPI) {
482 request->flags = ATA_R_ATAPI;
483 bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16);
486 request->u.ata.command = ioc_request->u.ata.command;
487 request->u.ata.feature = ioc_request->u.ata.feature;
488 request->u.ata.lba = ioc_request->u.ata.lba;
489 request->u.ata.count = ioc_request->u.ata.count;
491 request->timeout = ioc_request->timeout;
493 request->bytecount = ioc_request->count;
494 request->transfersize = request->bytecount;
495 if (ioc_request->flags & ATA_CMD_CONTROL)
496 request->flags |= ATA_R_CONTROL;
497 if (ioc_request->flags & ATA_CMD_READ)
498 request->flags |= ATA_R_READ;
499 if (ioc_request->flags & ATA_CMD_WRITE)
500 request->flags |= ATA_R_WRITE;
501 ata_queue_request(request);
502 if (request->flags & ATA_R_ATAPI) {
503 bcopy(&request->u.atapi.sense, &ioc_request->u.atapi.sense,
504 sizeof(struct atapi_sense));
507 ioc_request->u.ata.command = request->u.ata.command;
508 ioc_request->u.ata.feature = request->u.ata.feature;
509 ioc_request->u.ata.lba = request->u.ata.lba;
510 ioc_request->u.ata.count = request->u.ata.count;
512 ioc_request->error = request->result;
513 if (ioc_request->flags & ATA_CMD_READ)
514 error = copyout(buf, ioc_request->data, ioc_request->count);
518 ata_free_request(request);
522 ata_getparam(atadev, 0);
523 bcopy(&atadev->param, params, sizeof(struct ata_params));
527 atadev->mode = *mode;
528 ATA_SETMODE(device_get_parent(dev), dev);
532 *mode = atadev->mode;
540 ata_boot_attach(void)
542 struct ata_channel *ch;
547 /* kick of probe and attach on all channels */
548 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
549 if ((ch = devclass_get_softc(ata_devclass, ctlr))) {
550 ata_identify(ch->dev);
554 /* release the hook that got us here, we are only needed once during boot */
555 if (ata_delayed_attach) {
556 config_intrhook_disestablish(ata_delayed_attach);
557 kfree(ata_delayed_attach, M_TEMP);
558 ata_delayed_attach = NULL;
566 * misc support functions
569 ata_add_child(device_t parent, struct ata_device *atadev, int unit)
573 if ((child = device_add_child(parent, NULL, unit))) {
574 device_set_softc(child, atadev);
577 atadev->max_iosize = DEV_BSIZE;
578 atadev->mode = ATA_PIO_MAX;
584 ata_getparam(struct ata_device *atadev, int init)
586 struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev));
587 struct ata_request *request;
588 u_int8_t command = 0;
589 int error = ENOMEM, retries = 2;
592 (atadev->unit == ATA_MASTER ? ATA_ATA_MASTER : ATA_ATA_SLAVE))
593 command = ATA_ATA_IDENTIFY;
595 (atadev->unit == ATA_MASTER ? ATA_ATAPI_MASTER : ATA_ATAPI_SLAVE))
596 command = ATA_ATAPI_IDENTIFY;
600 while (retries-- > 0 && error) {
601 if (!(request = ata_alloc_request()))
603 request->dev = atadev->dev;
604 request->timeout = 1;
605 request->retries = 0;
606 request->u.ata.command = command;
607 request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT|ATA_R_QUIET);
608 request->data = (void *)&atadev->param;
609 request->bytecount = sizeof(struct ata_params);
610 request->donecount = 0;
611 request->transfersize = DEV_BSIZE;
612 ata_queue_request(request);
613 error = request->result;
614 ata_free_request(request);
617 if (!error && (isprint(atadev->param.model[0]) ||
618 isprint(atadev->param.model[1]))) {
619 struct ata_params *atacap = &atadev->param;
621 #if BYTE_ORDER == BIG_ENDIAN
624 for (ptr = (int16_t *)atacap;
625 ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) {
626 *ptr = bswap16(*ptr);
629 if (!(!strncmp(atacap->model, "FX", 2) ||
630 !strncmp(atacap->model, "NEC", 3) ||
631 !strncmp(atacap->model, "Pioneer", 7) ||
632 !strncmp(atacap->model, "SHARP", 5))) {
633 bswap(atacap->model, sizeof(atacap->model));
634 bswap(atacap->revision, sizeof(atacap->revision));
635 bswap(atacap->serial, sizeof(atacap->serial));
637 btrim(atacap->model, sizeof(atacap->model));
638 bpack(atacap->model, atacap->model, sizeof(atacap->model));
639 btrim(atacap->revision, sizeof(atacap->revision));
640 bpack(atacap->revision, atacap->revision, sizeof(atacap->revision));
641 btrim(atacap->serial, sizeof(atacap->serial));
642 bpack(atacap->serial, atacap->serial, sizeof(atacap->serial));
645 kprintf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n",
646 device_get_unit(ch->dev),
647 atadev->unit == ATA_MASTER ? "master" : "slave",
648 ata_mode2str(ata_pmode(atacap)),
649 ata_mode2str(ata_wmode(atacap)),
650 ata_mode2str(ata_umode(atacap)),
651 (atacap->hwres & ATA_CABLE_ID) ? "80":"40");
654 ksprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision);
655 device_set_desc_copy(atadev->dev, buffer);
656 if (atadev->param.config & ATA_PROTO_ATAPI) {
657 if (atapi_dma && ch->dma &&
658 (atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR &&
659 ata_umode(&atadev->param) >= ATA_UDMA2)
660 atadev->mode = ATA_DMA_MAX;
663 if (ata_dma && ch->dma &&
664 (ata_umode(&atadev->param) > 0 ||
665 ata_wmode(&atadev->param) > 0))
666 atadev->mode = ATA_DMA_MAX;
678 ata_identify(device_t dev)
680 struct ata_channel *ch = device_get_softc(dev);
681 struct ata_device *master = NULL, *slave = NULL;
682 device_t master_child = NULL, slave_child = NULL;
683 int master_unit = -1, slave_unit = -1;
685 if (ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) {
686 if (!(master = kmalloc(sizeof(struct ata_device),
687 M_ATA, M_NOWAIT | M_ZERO))) {
688 device_printf(dev, "out of memory\n");
691 master->unit = ATA_MASTER;
693 if (ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) {
694 if (!(slave = kmalloc(sizeof(struct ata_device),
695 M_ATA, M_NOWAIT | M_ZERO))) {
696 kfree(master, M_ATA);
697 device_printf(dev, "out of memory\n");
700 slave->unit = ATA_SLAVE;
704 if (ch->devices & ATA_ATA_MASTER)
705 master_unit = (device_get_unit(dev) << 1);
707 if (master && !(master_child = ata_add_child(dev, master, master_unit))) {
708 kfree(master, M_ATA);
712 if (ch->devices & ATA_ATA_SLAVE)
713 slave_unit = (device_get_unit(dev) << 1) + 1;
715 if (slave && !(slave_child = ata_add_child(dev, slave, slave_unit))) {
720 if (slave && ata_getparam(slave, 1)) {
721 device_delete_child(dev, slave_child);
724 if (master && ata_getparam(master, 1)) {
725 device_delete_child(dev, master_child);
726 kfree(master, M_ATA);
729 bus_generic_probe(dev);
730 bus_generic_attach(dev);
735 ata_default_registers(device_t dev)
737 struct ata_channel *ch = device_get_softc(dev);
739 /* fill in the defaults from whats setup already */
740 ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
741 ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
742 ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
743 ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
744 ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
745 ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
746 ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
747 ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
751 ata_modify_if_48bit(struct ata_request *request)
753 struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
754 struct ata_device *atadev = device_get_softc(request->dev);
756 atadev->flags &= ~ATA_D_48BIT_ACTIVE;
758 if ((request->u.ata.lba >= ATA_MAX_28BIT_LBA ||
759 request->u.ata.count > 256) &&
760 atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
762 /* translate command into 48bit version */
763 switch (request->u.ata.command) {
765 request->u.ata.command = ATA_READ48;
768 request->u.ata.command = ATA_READ_MUL48;
771 if (ch->flags & ATA_NO_48BIT_DMA) {
772 if (request->transfersize > DEV_BSIZE)
773 request->u.ata.command = ATA_READ_MUL48;
775 request->u.ata.command = ATA_READ48;
776 request->flags &= ~ATA_R_DMA;
779 request->u.ata.command = ATA_READ_DMA48;
781 case ATA_READ_DMA_QUEUED:
782 if (ch->flags & ATA_NO_48BIT_DMA) {
783 if (request->transfersize > DEV_BSIZE)
784 request->u.ata.command = ATA_READ_MUL48;
786 request->u.ata.command = ATA_READ48;
787 request->flags &= ~ATA_R_DMA;
790 request->u.ata.command = ATA_READ_DMA_QUEUED48;
793 request->u.ata.command = ATA_WRITE48;
796 request->u.ata.command = ATA_WRITE_MUL48;
799 if (ch->flags & ATA_NO_48BIT_DMA) {
800 if (request->transfersize > DEV_BSIZE)
801 request->u.ata.command = ATA_WRITE_MUL48;
803 request->u.ata.command = ATA_WRITE48;
804 request->flags &= ~ATA_R_DMA;
807 request->u.ata.command = ATA_WRITE_DMA48;
809 case ATA_WRITE_DMA_QUEUED:
810 if (ch->flags & ATA_NO_48BIT_DMA) {
811 if (request->transfersize > DEV_BSIZE)
812 request->u.ata.command = ATA_WRITE_MUL48;
814 request->u.ata.command = ATA_WRITE48;
815 request->u.ata.command = ATA_WRITE48;
816 request->flags &= ~ATA_R_DMA;
819 request->u.ata.command = ATA_WRITE_DMA_QUEUED48;
822 request->u.ata.command = ATA_FLUSHCACHE48;
824 case ATA_READ_NATIVE_MAX_ADDDRESS:
825 request->u.ata.command = ATA_READ_NATIVE_MAX_ADDDRESS48;
827 case ATA_SET_MAX_ADDRESS:
828 request->u.ata.command = ATA_SET_MAX_ADDRESS48;
833 atadev->flags |= ATA_D_48BIT_ACTIVE;
838 ata_udelay(int interval)
840 /* for now just use DELAY, the timer/sleep subsytems are not there yet */
841 if (1 || interval < (1000000/hz) || ata_delayed_attach)
844 tsleep(&interval, 0, "ataslp", interval/(1000000/hz));
848 ata_mode2str(int mode)
851 case -1: return "UNSUPPORTED";
852 case ATA_PIO0: return "PIO0";
853 case ATA_PIO1: return "PIO1";
854 case ATA_PIO2: return "PIO2";
855 case ATA_PIO3: return "PIO3";
856 case ATA_PIO4: return "PIO4";
857 case ATA_WDMA0: return "WDMA0";
858 case ATA_WDMA1: return "WDMA1";
859 case ATA_WDMA2: return "WDMA2";
860 case ATA_UDMA0: return "UDMA16";
861 case ATA_UDMA1: return "UDMA25";
862 case ATA_UDMA2: return "UDMA33";
863 case ATA_UDMA3: return "UDMA40";
864 case ATA_UDMA4: return "UDMA66";
865 case ATA_UDMA5: return "UDMA100";
866 case ATA_UDMA6: return "UDMA133";
867 case ATA_SA150: return "SATA150";
868 case ATA_SA300: return "SATA300";
869 case ATA_USB: return "USB";
870 case ATA_USB1: return "USB1";
871 case ATA_USB2: return "USB2";
873 if (mode & ATA_DMA_MASK)
881 ata_pmode(struct ata_params *ap)
883 if (ap->atavalid & ATA_FLAG_64_70) {
884 if (ap->apiomodes & 0x02)
886 if (ap->apiomodes & 0x01)
889 if (ap->mwdmamodes & 0x04)
891 if (ap->mwdmamodes & 0x02)
893 if (ap->mwdmamodes & 0x01)
895 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
897 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
899 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
905 ata_wmode(struct ata_params *ap)
907 if (ap->mwdmamodes & 0x04)
909 if (ap->mwdmamodes & 0x02)
911 if (ap->mwdmamodes & 0x01)
917 ata_umode(struct ata_params *ap)
919 if (ap->atavalid & ATA_FLAG_88) {
920 if (ap->udmamodes & 0x40)
922 if (ap->udmamodes & 0x20)
924 if (ap->udmamodes & 0x10)
926 if (ap->udmamodes & 0x08)
928 if (ap->udmamodes & 0x04)
930 if (ap->udmamodes & 0x02)
932 if (ap->udmamodes & 0x01)
939 ata_limit_mode(device_t dev, int mode, int maxmode)
941 struct ata_device *atadev = device_get_softc(dev);
943 if (maxmode && mode > maxmode)
946 if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0)
947 return min(mode, ata_umode(&atadev->param));
949 if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0)
950 return min(mode, ata_wmode(&atadev->param));
952 if (mode > ata_pmode(&atadev->param))
953 return min(mode, ata_pmode(&atadev->param));
959 bswap(int8_t *buf, int len)
961 u_int16_t *ptr = (u_int16_t*)(buf + len);
963 while (--ptr >= (u_int16_t*)buf)
968 btrim(int8_t *buf, int len)
972 for (ptr = buf; ptr < buf+len; ++ptr)
973 if (!*ptr || *ptr == '_')
975 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
980 bpack(int8_t *src, int8_t *dst, int len)
984 for (i = j = blank = 0 ; i < len; i++) {
985 if (blank && src[i] == ' ') continue;
986 if (blank && src[i] != ' ') {
1007 ata_module_event_handler(module_t mod, int what, void *arg)
1009 /* static because we need the reference at destruction time */
1010 static cdev_t atacdev;
1014 /* register controlling device */
1015 dev_ops_add(&ata_ops, 0, 0);
1016 atacdev = make_dev(&ata_ops, 0, UID_ROOT, GID_OPERATOR, 0600, "ata");
1017 reference_dev(atacdev);
1020 /* register boot attach to be run when interrupts are enabled */
1021 if (!(ata_delayed_attach = (struct intr_config_hook *)
1022 kmalloc(sizeof(struct intr_config_hook),
1023 M_TEMP, M_NOWAIT | M_ZERO))) {
1024 kprintf("ata: kmalloc of delayed attach hook failed\n");
1027 ata_delayed_attach->ich_func = (void*)ata_boot_attach;
1028 if (config_intrhook_establish(ata_delayed_attach) != 0) {
1029 kprintf("ata: config_intrhook_establish failed\n");
1030 kfree(ata_delayed_attach, M_TEMP);
1036 /* deregister controlling device */
1037 destroy_dev(atacdev);
1038 dev_ops_remove(&ata_ops, 0, 0);
1046 static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
1047 DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
1048 MODULE_VERSION(ata, 1);
1051 * Construct a completely zero'ed ata_request. On objcache_put(), an
1052 * ata_request object is also zero'ed, so objcache_get() is guaranteed to give
1053 * completely zero'ed objects without spending too much time.
1056 ata_request_cache_ctor(void *obj, void *private, int ocflags)
1058 struct ata_request *arp = obj;
1060 bzero(arp, sizeof(struct ata_request));
1065 * Construct a completely zero'ed ata_composite. On objcache_put(), an
1066 * ata_composite object is also zero'ed, so objcache_get() is guaranteed to give
1067 * completely zero'ed objects without spending too much time.
1070 ata_composite_cache_ctor(void *obj, void *private, int ocflags)
1072 struct ata_composite *acp = obj;
1074 bzero(acp, sizeof(struct ata_composite));
1081 ata_request_cache = objcache_create("ata_request", 0, 0,
1082 ata_request_cache_ctor, NULL, NULL,
1083 objcache_malloc_alloc,
1084 objcache_malloc_free,
1085 &ata_request_malloc_args);
1086 ata_composite_cache = objcache_create("ata_composite", 0, 0,
1087 ata_composite_cache_ctor, NULL, NULL,
1088 objcache_malloc_alloc,
1089 objcache_malloc_free,
1090 &ata_composite_malloc_args);
1092 SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
1097 objcache_destroy(ata_composite_cache);
1098 objcache_destroy(ata_request_cache);
1100 SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);