1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer,
12 * without modification, immediately at the beginning of the file.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
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.
27 */
28
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/kernel.h>
32 #include <sys/module.h>
33 #include <sys/ata.h>
34 #include <sys/bus.h>
35 #include <sys/conf.h>
36 #include <sys/malloc.h>
37 #include <sys/sbuf.h>
38 #include <sys/sema.h>
39 #include <sys/taskqueue.h>
40 #include <vm/uma.h>
41 #include <machine/stdarg.h>
42 #include <machine/resource.h>
43 #include <machine/bus.h>
44 #include <sys/rman.h>
45 #include <dev/pci/pcivar.h>
46 #include <dev/pci/pcireg.h>
47 #include <dev/ata/ata-all.h>
48 #include <dev/ata/ata-pci.h>
49 #include <ata_if.h>
50
51 MALLOC_DEFINE(M_ATAPCI, "ata_pci", "ATA driver PCI");
52
53 /* misc defines */
54 #define IOMASK 0xfffffffc
55
56 /*
57 * generic PCI ATA device probe
58 */
59 int
ata_pci_probe(device_t dev)60 ata_pci_probe(device_t dev)
61 {
62 struct ata_pci_controller *ctlr = device_get_softc(dev);
63
64 /* is this a storage class device ? */
65 if (pci_get_class(dev) != PCIC_STORAGE)
66 return (ENXIO);
67
68 /* is this an IDE/ATA type device ? */
69 if (pci_get_subclass(dev) != PCIS_STORAGE_IDE)
70 return (ENXIO);
71
72 device_set_descf(dev, "%s ATA controller", ata_pcivendor2str(dev));
73 ctlr->chipinit = ata_generic_chipinit;
74
75 /* we are a low priority handler */
76 return (BUS_PROBE_GENERIC);
77 }
78
79 int
ata_pci_attach(device_t dev)80 ata_pci_attach(device_t dev)
81 {
82 struct ata_pci_controller *ctlr = device_get_softc(dev);
83 device_t child;
84 u_int32_t cmd;
85 int unit;
86
87 /* do chipset specific setups only needed once */
88 ctlr->legacy = ata_legacy(dev);
89 if (ctlr->legacy || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK)
90 ctlr->channels = 2;
91 else
92 ctlr->channels = 1;
93 ctlr->ichannels = -1;
94 ctlr->ch_attach = ata_pci_ch_attach;
95 ctlr->ch_detach = ata_pci_ch_detach;
96 ctlr->dev = dev;
97
98 /* if needed try to enable busmastering */
99 pci_enable_busmaster(dev);
100 cmd = pci_read_config(dev, PCIR_COMMAND, 2);
101
102 /* if busmastering mode "stuck" use it */
103 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) {
104 ctlr->r_type1 = SYS_RES_IOPORT;
105 ctlr->r_rid1 = ATA_BMADDR_RID;
106 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1,
107 RF_ACTIVE);
108 }
109
110 if (ctlr->chipinit(dev)) {
111 if (ctlr->r_res1)
112 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1,
113 ctlr->r_res1);
114 return ENXIO;
115 }
116
117 /* attach all channels on this controller */
118 for (unit = 0; unit < ctlr->channels; unit++) {
119 if ((ctlr->ichannels & (1 << unit)) == 0)
120 continue;
121 child = device_add_child(dev, "ata",
122 ((unit == 0 || unit == 1) && ctlr->legacy) ?
123 unit : devclass_find_free_unit(ata_devclass, 2));
124 if (child == NULL)
125 device_printf(dev, "failed to add ata child device\n");
126 else
127 device_set_ivars(child, (void *)(intptr_t)unit);
128 }
129 bus_generic_attach(dev);
130 return 0;
131 }
132
133 int
ata_pci_detach(device_t dev)134 ata_pci_detach(device_t dev)
135 {
136 struct ata_pci_controller *ctlr = device_get_softc(dev);
137
138 /* detach & delete all children */
139 device_delete_children(dev);
140
141 if (ctlr->r_irq) {
142 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle);
143 bus_release_resource(dev, SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq);
144 if (ctlr->r_irq_rid != ATA_IRQ_RID)
145 pci_release_msi(dev);
146 }
147 if (ctlr->chipdeinit != NULL)
148 ctlr->chipdeinit(dev);
149 if (ctlr->r_res2) {
150 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
151 }
152 if (ctlr->r_res1) {
153 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
154 }
155
156 return 0;
157 }
158
159 int
ata_pci_suspend(device_t dev)160 ata_pci_suspend(device_t dev)
161 {
162 struct ata_pci_controller *ctlr = device_get_softc(dev);
163 int error = 0;
164
165 bus_generic_suspend(dev);
166 if (ctlr->suspend)
167 error = ctlr->suspend(dev);
168 return error;
169 }
170
171 int
ata_pci_resume(device_t dev)172 ata_pci_resume(device_t dev)
173 {
174 struct ata_pci_controller *ctlr = device_get_softc(dev);
175 int error = 0;
176
177 if (ctlr->resume)
178 error = ctlr->resume(dev);
179 bus_generic_resume(dev);
180 return error;
181 }
182
183 int
ata_pci_read_ivar(device_t dev,device_t child,int which,uintptr_t * result)184 ata_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
185 {
186
187 return (BUS_READ_IVAR(device_get_parent(dev), dev, which, result));
188 }
189
190 int
ata_pci_write_ivar(device_t dev,device_t child,int which,uintptr_t value)191 ata_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
192 {
193
194 return (BUS_WRITE_IVAR(device_get_parent(dev), dev, which, value));
195 }
196
197 uint32_t
ata_pci_read_config(device_t dev,device_t child,int reg,int width)198 ata_pci_read_config(device_t dev, device_t child, int reg, int width)
199 {
200
201 return (pci_read_config(dev, reg, width));
202 }
203
204 void
ata_pci_write_config(device_t dev,device_t child,int reg,uint32_t val,int width)205 ata_pci_write_config(device_t dev, device_t child, int reg,
206 uint32_t val, int width)
207 {
208
209 pci_write_config(dev, reg, val, width);
210 }
211
212 struct resource *
ata_pci_alloc_resource(device_t dev,device_t child,int type,int * rid,rman_res_t start,rman_res_t end,rman_res_t count,u_int flags)213 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid,
214 rman_res_t start, rman_res_t end, rman_res_t count,
215 u_int flags)
216 {
217 struct ata_pci_controller *controller = device_get_softc(dev);
218 struct resource *res = NULL;
219
220 if (device_get_devclass(child) == ata_devclass) {
221 int unit = ((struct ata_channel *)device_get_softc(child))->unit;
222 int myrid;
223
224 if (type == SYS_RES_IOPORT) {
225 switch (*rid) {
226 case ATA_IOADDR_RID:
227 if (controller->legacy) {
228 start = (unit ? ATA_SECONDARY : ATA_PRIMARY);
229 count = ATA_IOSIZE;
230 end = start + count - 1;
231 }
232 myrid = PCIR_BAR(0) + (unit << 3);
233 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
234 SYS_RES_IOPORT, &myrid,
235 start, end, count, flags);
236 break;
237 case ATA_CTLADDR_RID:
238 if (controller->legacy) {
239 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) +
240 ATA_CTLOFFSET;
241 count = ATA_CTLIOSIZE;
242 end = start + count - 1;
243 }
244 myrid = PCIR_BAR(1) + (unit << 3);
245 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
246 SYS_RES_IOPORT, &myrid,
247 start, end, count, flags);
248 break;
249 }
250 }
251 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) {
252 if (controller->legacy) {
253 int irq = (unit == 0 ? 14 : 15);
254
255 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
256 SYS_RES_IRQ, rid, irq, irq, 1, flags);
257 } else
258 res = controller->r_irq;
259 }
260 } else {
261 if (type == SYS_RES_IRQ) {
262 if (*rid != ATA_IRQ_RID)
263 return (NULL);
264 res = controller->r_irq;
265 } else {
266 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
267 type, rid, start, end, count, flags);
268 }
269 }
270 return (res);
271 }
272
273 int
ata_pci_release_resource(device_t dev,device_t child,struct resource * r)274 ata_pci_release_resource(device_t dev, device_t child, struct resource *r)
275 {
276 int rid = rman_get_rid(r);
277 int type = rman_get_type(r);
278
279 if (device_get_devclass(child) == ata_devclass) {
280 struct ata_pci_controller *controller = device_get_softc(dev);
281
282 if (type == SYS_RES_IOPORT) {
283 switch (rid) {
284 case ATA_IOADDR_RID:
285 case ATA_CTLADDR_RID:
286 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev,
287 r);
288 default:
289 return ENOENT;
290 }
291 }
292 if (type == SYS_RES_IRQ) {
293 if (rid != ATA_IRQ_RID)
294 return ENOENT;
295 if (controller->legacy) {
296 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
297 r);
298 } else
299 return 0;
300 }
301 } else {
302 if (type == SYS_RES_IRQ) {
303 if (rid != ATA_IRQ_RID)
304 return (ENOENT);
305 return (0);
306 } else {
307 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
308 r));
309 }
310 }
311 return (EINVAL);
312 }
313
314 int
ata_pci_setup_intr(device_t dev,device_t child,struct resource * irq,int flags,driver_filter_t * filter,driver_intr_t * function,void * argument,void ** cookiep)315 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq,
316 int flags, driver_filter_t *filter, driver_intr_t *function,
317 void *argument, void **cookiep)
318 {
319 struct ata_pci_controller *controller = device_get_softc(dev);
320
321 if (controller->legacy) {
322 return BUS_SETUP_INTR(device_get_parent(dev), child, irq,
323 flags, filter, function, argument, cookiep);
324 } else {
325 struct ata_pci_controller *controller = device_get_softc(dev);
326 int unit;
327
328 if (filter != NULL) {
329 printf("ata-pci.c: we cannot use a filter here\n");
330 return (EINVAL);
331 }
332 if (device_get_devclass(child) == ata_devclass)
333 unit = ((struct ata_channel *)device_get_softc(child))->unit;
334 else
335 unit = ATA_PCI_MAX_CH - 1;
336 controller->interrupt[unit].function = function;
337 controller->interrupt[unit].argument = argument;
338 *cookiep = controller;
339 return 0;
340 }
341 }
342
343 int
ata_pci_teardown_intr(device_t dev,device_t child,struct resource * irq,void * cookie)344 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq,
345 void *cookie)
346 {
347 struct ata_pci_controller *controller = device_get_softc(dev);
348
349 if (controller->legacy) {
350 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie);
351 } else {
352 struct ata_pci_controller *controller = device_get_softc(dev);
353 int unit;
354
355 if (device_get_devclass(child) == ata_devclass)
356 unit = ((struct ata_channel *)device_get_softc(child))->unit;
357 else
358 unit = ATA_PCI_MAX_CH - 1;
359 controller->interrupt[unit].function = NULL;
360 controller->interrupt[unit].argument = NULL;
361 return 0;
362 }
363 }
364
365 int
ata_generic_setmode(device_t dev,int target,int mode)366 ata_generic_setmode(device_t dev, int target, int mode)
367 {
368
369 return (min(mode, ATA_UDMA2));
370 }
371
372 int
ata_generic_chipinit(device_t dev)373 ata_generic_chipinit(device_t dev)
374 {
375 struct ata_pci_controller *ctlr = device_get_softc(dev);
376
377 if (ata_setup_interrupt(dev, ata_generic_intr))
378 return ENXIO;
379 ctlr->setmode = ata_generic_setmode;
380 return 0;
381 }
382
383 int
ata_pci_ch_attach(device_t dev)384 ata_pci_ch_attach(device_t dev)
385 {
386 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
387 struct ata_channel *ch = device_get_softc(dev);
388 struct resource *io = NULL, *ctlio = NULL;
389 int i, rid;
390
391 rid = ATA_IOADDR_RID;
392 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE)))
393 return ENXIO;
394
395 rid = ATA_CTLADDR_RID;
396 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){
397 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
398 return ENXIO;
399 }
400
401 ata_pci_dmainit(dev);
402
403 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
404 ch->r_io[i].res = io;
405 ch->r_io[i].offset = i;
406 }
407 ch->r_io[ATA_CONTROL].res = ctlio;
408 ch->r_io[ATA_CONTROL].offset = ctlr->legacy ? 0 : 2;
409 ch->r_io[ATA_IDX_ADDR].res = io;
410 ata_default_registers(dev);
411 if (ctlr->r_res1) {
412 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
413 ch->r_io[i].res = ctlr->r_res1;
414 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE);
415 }
416 }
417
418 ata_pci_hw(dev);
419 return 0;
420 }
421
422 int
ata_pci_ch_detach(device_t dev)423 ata_pci_ch_detach(device_t dev)
424 {
425 struct ata_channel *ch = device_get_softc(dev);
426
427 ata_pci_dmafini(dev);
428
429 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID,
430 ch->r_io[ATA_CONTROL].res);
431 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID,
432 ch->r_io[ATA_IDX_ADDR].res);
433
434 return (0);
435 }
436
437 int
ata_pci_status(device_t dev)438 ata_pci_status(device_t dev)
439 {
440 struct ata_pci_controller *controller =
441 device_get_softc(device_get_parent(dev));
442 struct ata_channel *ch = device_get_softc(dev);
443
444 if ((dumping || !controller->legacy) &&
445 ((ch->flags & ATA_ALWAYS_DMASTAT) ||
446 (ch->dma.flags & ATA_DMA_ACTIVE))) {
447 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
448
449 if ((bmstat & ATA_BMSTAT_INTERRUPT) == 0)
450 return 0;
451 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR);
452 DELAY(1);
453 }
454 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) {
455 DELAY(100);
456 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY)
457 return 0;
458 }
459 return 1;
460 }
461
462 void
ata_pci_hw(device_t dev)463 ata_pci_hw(device_t dev)
464 {
465 struct ata_channel *ch = device_get_softc(dev);
466
467 ata_generic_hw(dev);
468 ch->hw.status = ata_pci_status;
469 }
470
471 static int
ata_pci_dmastart(struct ata_request * request)472 ata_pci_dmastart(struct ata_request *request)
473 {
474 struct ata_channel *ch = device_get_softc(request->parent);
475
476 ATA_DEBUG_RQ(request, "dmastart");
477
478 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
479 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
480 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
481 ch->dma.flags |= ATA_DMA_ACTIVE;
482 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
483 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) |
484 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)|
485 ATA_BMCMD_START_STOP);
486 return 0;
487 }
488
489 static int
ata_pci_dmastop(struct ata_request * request)490 ata_pci_dmastop(struct ata_request *request)
491 {
492 struct ata_channel *ch = device_get_softc(request->parent);
493 int error;
494
495 ATA_DEBUG_RQ(request, "dmastop");
496
497 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
498 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
499 ch->dma.flags &= ~ATA_DMA_ACTIVE;
500 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
501 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
502 return error;
503 }
504
505 static void
ata_pci_dmareset(device_t dev)506 ata_pci_dmareset(device_t dev)
507 {
508 struct ata_channel *ch = device_get_softc(dev);
509 struct ata_request *request;
510
511 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
512 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
513 ch->dma.flags &= ~ATA_DMA_ACTIVE;
514 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
515 if ((request = ch->running)) {
516 device_printf(dev, "DMA reset calling unload\n");
517 ch->dma.unload(request);
518 }
519 }
520
521 void
ata_pci_dmainit(device_t dev)522 ata_pci_dmainit(device_t dev)
523 {
524 struct ata_channel *ch = device_get_softc(dev);
525
526 ata_dmainit(dev);
527 ch->dma.start = ata_pci_dmastart;
528 ch->dma.stop = ata_pci_dmastop;
529 ch->dma.reset = ata_pci_dmareset;
530 }
531
532 void
ata_pci_dmafini(device_t dev)533 ata_pci_dmafini(device_t dev)
534 {
535
536 ata_dmafini(dev);
537 }
538
539 int
ata_pci_print_child(device_t dev,device_t child)540 ata_pci_print_child(device_t dev, device_t child)
541 {
542 int retval;
543
544 retval = bus_print_child_header(dev, child);
545 retval += printf(" at channel %d",
546 (int)(intptr_t)device_get_ivars(child));
547 retval += bus_print_child_footer(dev, child);
548
549 return (retval);
550 }
551
552 int
ata_pci_child_location(device_t dev,device_t child,struct sbuf * sb)553 ata_pci_child_location(device_t dev, device_t child, struct sbuf *sb)
554 {
555
556 sbuf_printf(sb, "channel=%d",
557 (int)(intptr_t)device_get_ivars(child));
558 return (0);
559 }
560
561 static bus_dma_tag_t
ata_pci_get_dma_tag(device_t bus,device_t child)562 ata_pci_get_dma_tag(device_t bus, device_t child)
563 {
564
565 return (bus_get_dma_tag(bus));
566 }
567
568 static device_method_t ata_pci_methods[] = {
569 /* device interface */
570 DEVMETHOD(device_probe, ata_pci_probe),
571 DEVMETHOD(device_attach, ata_pci_attach),
572 DEVMETHOD(device_detach, ata_pci_detach),
573 DEVMETHOD(device_suspend, ata_pci_suspend),
574 DEVMETHOD(device_resume, ata_pci_resume),
575 DEVMETHOD(device_shutdown, bus_generic_shutdown),
576
577 /* bus methods */
578 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar),
579 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar),
580 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource),
581 DEVMETHOD(bus_release_resource, ata_pci_release_resource),
582 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
583 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
584 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr),
585 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr),
586 DEVMETHOD(pci_read_config, ata_pci_read_config),
587 DEVMETHOD(pci_write_config, ata_pci_write_config),
588 DEVMETHOD(bus_print_child, ata_pci_print_child),
589 DEVMETHOD(bus_child_location, ata_pci_child_location),
590 DEVMETHOD(bus_get_dma_tag, ata_pci_get_dma_tag),
591
592 DEVMETHOD_END
593 };
594
595 static driver_t ata_pci_driver = {
596 "atapci",
597 ata_pci_methods,
598 sizeof(struct ata_pci_controller),
599 };
600
601 DRIVER_MODULE(atapci, pci, ata_pci_driver, NULL, NULL);
602 MODULE_VERSION(atapci, 1);
603 MODULE_DEPEND(atapci, ata, 1, 1, 1);
604
605 static int
ata_pcichannel_probe(device_t dev)606 ata_pcichannel_probe(device_t dev)
607 {
608
609 if ((intptr_t)device_get_ivars(dev) < 0)
610 return (ENXIO);
611 device_set_desc(dev, "ATA channel");
612
613 return ata_probe(dev);
614 }
615
616 static int
ata_pcichannel_attach(device_t dev)617 ata_pcichannel_attach(device_t dev)
618 {
619 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
620 struct ata_channel *ch = device_get_softc(dev);
621 int error;
622
623 if (ch->attached)
624 return (0);
625 ch->attached = 1;
626
627 ch->dev = dev;
628 ch->unit = (intptr_t)device_get_ivars(dev);
629
630 resource_int_value(device_get_name(dev),
631 device_get_unit(dev), "pm_level", &ch->pm_level);
632
633 if ((error = ctlr->ch_attach(dev)))
634 return error;
635
636 return ata_attach(dev);
637 }
638
639 static int
ata_pcichannel_detach(device_t dev)640 ata_pcichannel_detach(device_t dev)
641 {
642 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
643 struct ata_channel *ch = device_get_softc(dev);
644 int error;
645
646 if (!ch->attached)
647 return (0);
648 ch->attached = 0;
649
650 if ((error = ata_detach(dev)))
651 return error;
652
653 if (ctlr->ch_detach)
654 return (ctlr->ch_detach(dev));
655
656 return (0);
657 }
658 static int
ata_pcichannel_suspend(device_t dev)659 ata_pcichannel_suspend(device_t dev)
660 {
661 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
662 struct ata_channel *ch = device_get_softc(dev);
663 int error;
664
665 if (!ch->attached)
666 return (0);
667
668 if ((error = ata_suspend(dev)))
669 return (error);
670
671 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev)))
672 return (error);
673
674 return (0);
675 }
676
677 static int
ata_pcichannel_resume(device_t dev)678 ata_pcichannel_resume(device_t dev)
679 {
680 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
681 struct ata_channel *ch = device_get_softc(dev);
682 int error;
683
684 if (!ch->attached)
685 return (0);
686
687 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev)))
688 return (error);
689
690 return ata_resume(dev);
691 }
692
693 static void
ata_pcichannel_reset(device_t dev)694 ata_pcichannel_reset(device_t dev)
695 {
696 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
697 struct ata_channel *ch = device_get_softc(dev);
698
699 /* if DMA engine present reset it */
700 if (ch->dma.reset)
701 ch->dma.reset(dev);
702
703 /* reset the controller HW */
704 if (ctlr->reset)
705 ctlr->reset(dev);
706 else
707 ata_generic_reset(dev);
708 }
709
710 static int
ata_pcichannel_setmode(device_t dev,int target,int mode)711 ata_pcichannel_setmode(device_t dev, int target, int mode)
712 {
713 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
714
715 if (ctlr->setmode)
716 return (ctlr->setmode(dev, target, mode));
717 else
718 return (ata_generic_setmode(dev, target, mode));
719 }
720
721 static int
ata_pcichannel_getrev(device_t dev,int target)722 ata_pcichannel_getrev(device_t dev, int target)
723 {
724 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
725 struct ata_channel *ch = device_get_softc(dev);
726
727 if (ch->flags & ATA_SATA) {
728 if (ctlr->getrev)
729 return (ctlr->getrev(dev, target));
730 else
731 return (0xff);
732 } else
733 return (0);
734 }
735
736 static device_method_t ata_pcichannel_methods[] = {
737 /* device interface */
738 DEVMETHOD(device_probe, ata_pcichannel_probe),
739 DEVMETHOD(device_attach, ata_pcichannel_attach),
740 DEVMETHOD(device_detach, ata_pcichannel_detach),
741 DEVMETHOD(device_shutdown, bus_generic_shutdown),
742 DEVMETHOD(device_suspend, ata_pcichannel_suspend),
743 DEVMETHOD(device_resume, ata_pcichannel_resume),
744
745 /* ATA methods */
746 DEVMETHOD(ata_setmode, ata_pcichannel_setmode),
747 DEVMETHOD(ata_getrev, ata_pcichannel_getrev),
748 DEVMETHOD(ata_reset, ata_pcichannel_reset),
749
750 DEVMETHOD_END
751 };
752
753 driver_t ata_pcichannel_driver = {
754 "ata",
755 ata_pcichannel_methods,
756 sizeof(struct ata_channel),
757 };
758
759 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, NULL, NULL);
760
761 /*
762 * misc support functions
763 */
764 int
ata_legacy(device_t dev)765 ata_legacy(device_t dev)
766 {
767 return (((pci_read_config(dev, PCIR_SUBCLASS, 1) == PCIS_STORAGE_IDE) &&
768 (pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&&
769 ((pci_read_config(dev, PCIR_PROGIF, 1) &
770 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) !=
771 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) ||
772 (!pci_read_config(dev, PCIR_BAR(0), 4) &&
773 !pci_read_config(dev, PCIR_BAR(1), 4) &&
774 !pci_read_config(dev, PCIR_BAR(2), 4) &&
775 !pci_read_config(dev, PCIR_BAR(3), 4) &&
776 !pci_read_config(dev, PCIR_BAR(5), 4)));
777 }
778
779 void
ata_generic_intr(void * data)780 ata_generic_intr(void *data)
781 {
782 struct ata_pci_controller *ctlr = data;
783 struct ata_channel *ch;
784 int unit;
785
786 for (unit = 0; unit < ATA_PCI_MAX_CH; unit++) {
787 if ((ch = ctlr->interrupt[unit].argument))
788 ctlr->interrupt[unit].function(ch);
789 }
790 }
791
792 int
ata_setup_interrupt(device_t dev,void * intr_func)793 ata_setup_interrupt(device_t dev, void *intr_func)
794 {
795 struct ata_pci_controller *ctlr = device_get_softc(dev);
796 int i, msi = 0;
797
798 if (!ctlr->legacy) {
799 if (resource_int_value(device_get_name(dev),
800 device_get_unit(dev), "msi", &i) == 0 && i != 0)
801 msi = 1;
802 if (msi && pci_msi_count(dev) > 0 && pci_alloc_msi(dev, &msi) == 0) {
803 ctlr->r_irq_rid = 0x1;
804 } else {
805 msi = 0;
806 ctlr->r_irq_rid = ATA_IRQ_RID;
807 }
808 if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
809 &ctlr->r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) {
810 device_printf(dev, "unable to map interrupt\n");
811 if (msi)
812 pci_release_msi(dev);
813 return ENXIO;
814 }
815 if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
816 intr_func, ctlr, &ctlr->handle))) {
817 device_printf(dev, "unable to setup interrupt\n");
818 bus_release_resource(dev,
819 SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq);
820 if (msi)
821 pci_release_msi(dev);
822 return ENXIO;
823 }
824 }
825 return 0;
826 }
827
828 void
ata_set_desc(device_t dev)829 ata_set_desc(device_t dev)
830 {
831 struct ata_pci_controller *ctlr = device_get_softc(dev);
832
833 device_set_descf(dev, "%s %s %s controller",
834 ata_pcivendor2str(dev), ctlr->chip->text,
835 ata_mode2str(ctlr->chip->max_dma));
836 }
837
838 const struct ata_chip_id *
ata_match_chip(device_t dev,const struct ata_chip_id * index)839 ata_match_chip(device_t dev, const struct ata_chip_id *index)
840 {
841 uint32_t devid;
842 uint8_t revid;
843
844 devid = pci_get_devid(dev);
845 revid = pci_get_revid(dev);
846 while (index->chipid != 0) {
847 if (devid == index->chipid && revid >= index->chiprev)
848 return (index);
849 index++;
850 }
851 return (NULL);
852 }
853
854 const struct ata_chip_id *
ata_find_chip(device_t dev,const struct ata_chip_id * index,int slot)855 ata_find_chip(device_t dev, const struct ata_chip_id *index, int slot)
856 {
857 const struct ata_chip_id *idx;
858 device_t *children;
859 int nchildren, i;
860 uint8_t s;
861
862 if (device_get_children(device_get_parent(dev), &children, &nchildren))
863 return (NULL);
864
865 for (i = 0; i < nchildren; i++) {
866 s = pci_get_slot(children[i]);
867 if ((slot >= 0 && s == slot) || (slot < 0 && s <= -slot)) {
868 idx = ata_match_chip(children[i], index);
869 if (idx != NULL) {
870 free(children, M_TEMP);
871 return (idx);
872 }
873 }
874 }
875 free(children, M_TEMP);
876 return (NULL);
877 }
878
879 const char *
ata_pcivendor2str(device_t dev)880 ata_pcivendor2str(device_t dev)
881 {
882 switch (pci_get_vendor(dev)) {
883 case ATA_ACARD_ID: return "Acard";
884 case ATA_ACER_LABS_ID: return "AcerLabs";
885 case ATA_AMD_ID: return "AMD";
886 case ATA_ADAPTEC_ID: return "Adaptec";
887 case ATA_ATI_ID: return "ATI";
888 case ATA_CYRIX_ID: return "Cyrix";
889 case ATA_CYPRESS_ID: return "Cypress";
890 case ATA_HIGHPOINT_ID: return "HighPoint";
891 case ATA_INTEL_ID: return "Intel";
892 case ATA_ITE_ID: return "ITE";
893 case ATA_JMICRON_ID: return "JMicron";
894 case ATA_MARVELL_ID: return "Marvell";
895 case ATA_MARVELL2_ID: return "Marvell";
896 case ATA_NATIONAL_ID: return "National";
897 case ATA_NETCELL_ID: return "Netcell";
898 case ATA_NVIDIA_ID: return "nVidia";
899 case ATA_PROMISE_ID: return "Promise";
900 case ATA_SERVERWORKS_ID: return "ServerWorks";
901 case ATA_SILICON_IMAGE_ID: return "SiI";
902 case ATA_SIS_ID: return "SiS";
903 case ATA_VIA_ID: return "VIA";
904 case ATA_CENATEK_ID: return "Cenatek";
905 case ATA_MICRON_ID: return "Micron";
906 default: return "Generic";
907 }
908 }
909
910 int
ata_mode2idx(int mode)911 ata_mode2idx(int mode)
912 {
913 if ((mode & ATA_DMA_MASK) == ATA_UDMA0)
914 return (mode & ATA_MODE_MASK) + 8;
915 if ((mode & ATA_DMA_MASK) == ATA_WDMA0)
916 return (mode & ATA_MODE_MASK) + 5;
917 return (mode & ATA_MODE_MASK) - ATA_PIO0;
918 }
919