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_attach_children(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 int error;
138
139 /* detach & delete all children */
140 error = bus_generic_detach(dev);
141 if (error != 0)
142 return (error);
143
144 if (ctlr->r_irq) {
145 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle);
146 bus_release_resource(dev, SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq);
147 if (ctlr->r_irq_rid != ATA_IRQ_RID)
148 pci_release_msi(dev);
149 }
150 if (ctlr->chipdeinit != NULL)
151 ctlr->chipdeinit(dev);
152 if (ctlr->r_res2) {
153 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
154 }
155 if (ctlr->r_res1) {
156 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
157 }
158
159 return 0;
160 }
161
162 int
ata_pci_suspend(device_t dev)163 ata_pci_suspend(device_t dev)
164 {
165 struct ata_pci_controller *ctlr = device_get_softc(dev);
166 int error = 0;
167
168 bus_generic_suspend(dev);
169 if (ctlr->suspend)
170 error = ctlr->suspend(dev);
171 return error;
172 }
173
174 int
ata_pci_resume(device_t dev)175 ata_pci_resume(device_t dev)
176 {
177 struct ata_pci_controller *ctlr = device_get_softc(dev);
178 int error = 0;
179
180 if (ctlr->resume)
181 error = ctlr->resume(dev);
182 bus_generic_resume(dev);
183 return error;
184 }
185
186 int
ata_pci_read_ivar(device_t dev,device_t child,int which,uintptr_t * result)187 ata_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
188 {
189
190 return (BUS_READ_IVAR(device_get_parent(dev), dev, which, result));
191 }
192
193 int
ata_pci_write_ivar(device_t dev,device_t child,int which,uintptr_t value)194 ata_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
195 {
196
197 return (BUS_WRITE_IVAR(device_get_parent(dev), dev, which, value));
198 }
199
200 uint32_t
ata_pci_read_config(device_t dev,device_t child,int reg,int width)201 ata_pci_read_config(device_t dev, device_t child, int reg, int width)
202 {
203
204 return (pci_read_config(dev, reg, width));
205 }
206
207 void
ata_pci_write_config(device_t dev,device_t child,int reg,uint32_t val,int width)208 ata_pci_write_config(device_t dev, device_t child, int reg,
209 uint32_t val, int width)
210 {
211
212 pci_write_config(dev, reg, val, width);
213 }
214
215 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)216 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid,
217 rman_res_t start, rman_res_t end, rman_res_t count,
218 u_int flags)
219 {
220 struct ata_pci_controller *controller = device_get_softc(dev);
221 struct resource *res = NULL;
222
223 if (device_get_devclass(child) == ata_devclass) {
224 int unit = ((struct ata_channel *)device_get_softc(child))->unit;
225 int myrid;
226
227 if (type == SYS_RES_IOPORT) {
228 switch (*rid) {
229 case ATA_IOADDR_RID:
230 if (controller->legacy) {
231 start = (unit ? ATA_SECONDARY : ATA_PRIMARY);
232 count = ATA_IOSIZE;
233 end = start + count - 1;
234 }
235 myrid = PCIR_BAR(0) + (unit << 3);
236 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
237 SYS_RES_IOPORT, &myrid,
238 start, end, count, flags);
239 break;
240 case ATA_CTLADDR_RID:
241 if (controller->legacy) {
242 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) +
243 ATA_CTLOFFSET;
244 count = ATA_CTLIOSIZE;
245 end = start + count - 1;
246 }
247 myrid = PCIR_BAR(1) + (unit << 3);
248 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
249 SYS_RES_IOPORT, &myrid,
250 start, end, count, flags);
251 break;
252 }
253 }
254 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) {
255 if (controller->legacy) {
256 int irq = (unit == 0 ? 14 : 15);
257
258 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
259 SYS_RES_IRQ, rid, irq, irq, 1, flags);
260 } else
261 res = controller->r_irq;
262 }
263 } else {
264 if (type == SYS_RES_IRQ) {
265 if (*rid != ATA_IRQ_RID)
266 return (NULL);
267 res = controller->r_irq;
268 } else {
269 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
270 type, rid, start, end, count, flags);
271 }
272 }
273 return (res);
274 }
275
276 int
ata_pci_release_resource(device_t dev,device_t child,struct resource * r)277 ata_pci_release_resource(device_t dev, device_t child, struct resource *r)
278 {
279 int rid = rman_get_rid(r);
280 int type = rman_get_type(r);
281
282 if (device_get_devclass(child) == ata_devclass) {
283 struct ata_pci_controller *controller = device_get_softc(dev);
284
285 if (type == SYS_RES_IOPORT) {
286 switch (rid) {
287 case ATA_IOADDR_RID:
288 case ATA_CTLADDR_RID:
289 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev,
290 r);
291 default:
292 return ENOENT;
293 }
294 }
295 if (type == SYS_RES_IRQ) {
296 if (rid != ATA_IRQ_RID)
297 return ENOENT;
298 if (controller->legacy) {
299 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
300 r);
301 } else
302 return 0;
303 }
304 } else {
305 if (type == SYS_RES_IRQ) {
306 if (rid != ATA_IRQ_RID)
307 return (ENOENT);
308 return (0);
309 } else {
310 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
311 r));
312 }
313 }
314 return (EINVAL);
315 }
316
317 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)318 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq,
319 int flags, driver_filter_t *filter, driver_intr_t *function,
320 void *argument, void **cookiep)
321 {
322 struct ata_pci_controller *controller = device_get_softc(dev);
323
324 if (controller->legacy) {
325 return BUS_SETUP_INTR(device_get_parent(dev), child, irq,
326 flags, filter, function, argument, cookiep);
327 } else {
328 struct ata_pci_controller *controller = device_get_softc(dev);
329 int unit;
330
331 if (filter != NULL) {
332 printf("ata-pci.c: we cannot use a filter here\n");
333 return (EINVAL);
334 }
335 if (device_get_devclass(child) == ata_devclass)
336 unit = ((struct ata_channel *)device_get_softc(child))->unit;
337 else
338 unit = ATA_PCI_MAX_CH - 1;
339 controller->interrupt[unit].function = function;
340 controller->interrupt[unit].argument = argument;
341 *cookiep = controller;
342 return 0;
343 }
344 }
345
346 int
ata_pci_teardown_intr(device_t dev,device_t child,struct resource * irq,void * cookie)347 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq,
348 void *cookie)
349 {
350 struct ata_pci_controller *controller = device_get_softc(dev);
351
352 if (controller->legacy) {
353 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie);
354 } else {
355 struct ata_pci_controller *controller = device_get_softc(dev);
356 int unit;
357
358 if (device_get_devclass(child) == ata_devclass)
359 unit = ((struct ata_channel *)device_get_softc(child))->unit;
360 else
361 unit = ATA_PCI_MAX_CH - 1;
362 controller->interrupt[unit].function = NULL;
363 controller->interrupt[unit].argument = NULL;
364 return 0;
365 }
366 }
367
368 int
ata_generic_setmode(device_t dev,int target,int mode)369 ata_generic_setmode(device_t dev, int target, int mode)
370 {
371
372 return (min(mode, ATA_UDMA2));
373 }
374
375 int
ata_generic_chipinit(device_t dev)376 ata_generic_chipinit(device_t dev)
377 {
378 struct ata_pci_controller *ctlr = device_get_softc(dev);
379
380 if (ata_setup_interrupt(dev, ata_generic_intr))
381 return ENXIO;
382 ctlr->setmode = ata_generic_setmode;
383 return 0;
384 }
385
386 int
ata_pci_ch_attach(device_t dev)387 ata_pci_ch_attach(device_t dev)
388 {
389 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
390 struct ata_channel *ch = device_get_softc(dev);
391 struct resource *io = NULL, *ctlio = NULL;
392 int i, rid;
393
394 rid = ATA_IOADDR_RID;
395 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE)))
396 return ENXIO;
397
398 rid = ATA_CTLADDR_RID;
399 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){
400 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
401 return ENXIO;
402 }
403
404 ata_pci_dmainit(dev);
405
406 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
407 ch->r_io[i].res = io;
408 ch->r_io[i].offset = i;
409 }
410 ch->r_io[ATA_CONTROL].res = ctlio;
411 ch->r_io[ATA_CONTROL].offset = ctlr->legacy ? 0 : 2;
412 ch->r_io[ATA_IDX_ADDR].res = io;
413 ata_default_registers(dev);
414 if (ctlr->r_res1) {
415 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
416 ch->r_io[i].res = ctlr->r_res1;
417 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE);
418 }
419 }
420
421 ata_pci_hw(dev);
422 return 0;
423 }
424
425 int
ata_pci_ch_detach(device_t dev)426 ata_pci_ch_detach(device_t dev)
427 {
428 struct ata_channel *ch = device_get_softc(dev);
429
430 ata_pci_dmafini(dev);
431
432 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID,
433 ch->r_io[ATA_CONTROL].res);
434 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID,
435 ch->r_io[ATA_IDX_ADDR].res);
436
437 return (0);
438 }
439
440 int
ata_pci_status(device_t dev)441 ata_pci_status(device_t dev)
442 {
443 struct ata_pci_controller *controller =
444 device_get_softc(device_get_parent(dev));
445 struct ata_channel *ch = device_get_softc(dev);
446
447 if ((dumping || !controller->legacy) &&
448 ((ch->flags & ATA_ALWAYS_DMASTAT) ||
449 (ch->dma.flags & ATA_DMA_ACTIVE))) {
450 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
451
452 if ((bmstat & ATA_BMSTAT_INTERRUPT) == 0)
453 return 0;
454 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR);
455 DELAY(1);
456 }
457 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) {
458 DELAY(100);
459 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY)
460 return 0;
461 }
462 return 1;
463 }
464
465 void
ata_pci_hw(device_t dev)466 ata_pci_hw(device_t dev)
467 {
468 struct ata_channel *ch = device_get_softc(dev);
469
470 ata_generic_hw(dev);
471 ch->hw.status = ata_pci_status;
472 }
473
474 static int
ata_pci_dmastart(struct ata_request * request)475 ata_pci_dmastart(struct ata_request *request)
476 {
477 struct ata_channel *ch = device_get_softc(request->parent);
478
479 ATA_DEBUG_RQ(request, "dmastart");
480
481 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
482 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
483 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
484 ch->dma.flags |= ATA_DMA_ACTIVE;
485 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
486 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) |
487 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)|
488 ATA_BMCMD_START_STOP);
489 return 0;
490 }
491
492 static int
ata_pci_dmastop(struct ata_request * request)493 ata_pci_dmastop(struct ata_request *request)
494 {
495 struct ata_channel *ch = device_get_softc(request->parent);
496 int error;
497
498 ATA_DEBUG_RQ(request, "dmastop");
499
500 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
501 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
502 ch->dma.flags &= ~ATA_DMA_ACTIVE;
503 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
504 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
505 return error;
506 }
507
508 static void
ata_pci_dmareset(device_t dev)509 ata_pci_dmareset(device_t dev)
510 {
511 struct ata_channel *ch = device_get_softc(dev);
512 struct ata_request *request;
513
514 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
515 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
516 ch->dma.flags &= ~ATA_DMA_ACTIVE;
517 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
518 if ((request = ch->running)) {
519 device_printf(dev, "DMA reset calling unload\n");
520 ch->dma.unload(request);
521 }
522 }
523
524 void
ata_pci_dmainit(device_t dev)525 ata_pci_dmainit(device_t dev)
526 {
527 struct ata_channel *ch = device_get_softc(dev);
528
529 ata_dmainit(dev);
530 ch->dma.start = ata_pci_dmastart;
531 ch->dma.stop = ata_pci_dmastop;
532 ch->dma.reset = ata_pci_dmareset;
533 }
534
535 void
ata_pci_dmafini(device_t dev)536 ata_pci_dmafini(device_t dev)
537 {
538
539 ata_dmafini(dev);
540 }
541
542 int
ata_pci_print_child(device_t dev,device_t child)543 ata_pci_print_child(device_t dev, device_t child)
544 {
545 int retval;
546
547 retval = bus_print_child_header(dev, child);
548 retval += printf(" at channel %d",
549 (int)(intptr_t)device_get_ivars(child));
550 retval += bus_print_child_footer(dev, child);
551
552 return (retval);
553 }
554
555 int
ata_pci_child_location(device_t dev,device_t child,struct sbuf * sb)556 ata_pci_child_location(device_t dev, device_t child, struct sbuf *sb)
557 {
558
559 sbuf_printf(sb, "channel=%d",
560 (int)(intptr_t)device_get_ivars(child));
561 return (0);
562 }
563
564 static bus_dma_tag_t
ata_pci_get_dma_tag(device_t bus,device_t child)565 ata_pci_get_dma_tag(device_t bus, device_t child)
566 {
567
568 return (bus_get_dma_tag(bus));
569 }
570
571 static device_method_t ata_pci_methods[] = {
572 /* device interface */
573 DEVMETHOD(device_probe, ata_pci_probe),
574 DEVMETHOD(device_attach, ata_pci_attach),
575 DEVMETHOD(device_detach, ata_pci_detach),
576 DEVMETHOD(device_suspend, ata_pci_suspend),
577 DEVMETHOD(device_resume, ata_pci_resume),
578 DEVMETHOD(device_shutdown, bus_generic_shutdown),
579
580 /* bus methods */
581 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar),
582 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar),
583 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource),
584 DEVMETHOD(bus_release_resource, ata_pci_release_resource),
585 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
586 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
587 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr),
588 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr),
589 DEVMETHOD(pci_read_config, ata_pci_read_config),
590 DEVMETHOD(pci_write_config, ata_pci_write_config),
591 DEVMETHOD(bus_print_child, ata_pci_print_child),
592 DEVMETHOD(bus_child_location, ata_pci_child_location),
593 DEVMETHOD(bus_get_dma_tag, ata_pci_get_dma_tag),
594
595 DEVMETHOD_END
596 };
597
598 static driver_t ata_pci_driver = {
599 "atapci",
600 ata_pci_methods,
601 sizeof(struct ata_pci_controller),
602 };
603
604 DRIVER_MODULE(atapci, pci, ata_pci_driver, NULL, NULL);
605 MODULE_VERSION(atapci, 1);
606 MODULE_DEPEND(atapci, ata, 1, 1, 1);
607
608 static int
ata_pcichannel_probe(device_t dev)609 ata_pcichannel_probe(device_t dev)
610 {
611
612 if ((intptr_t)device_get_ivars(dev) < 0)
613 return (ENXIO);
614 device_set_desc(dev, "ATA channel");
615
616 return ata_probe(dev);
617 }
618
619 static int
ata_pcichannel_attach(device_t dev)620 ata_pcichannel_attach(device_t dev)
621 {
622 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
623 struct ata_channel *ch = device_get_softc(dev);
624 int error;
625
626 if (ch->attached)
627 return (0);
628 ch->attached = 1;
629
630 ch->dev = dev;
631 ch->unit = (intptr_t)device_get_ivars(dev);
632
633 resource_int_value(device_get_name(dev),
634 device_get_unit(dev), "pm_level", &ch->pm_level);
635
636 if ((error = ctlr->ch_attach(dev)))
637 return error;
638
639 return ata_attach(dev);
640 }
641
642 static int
ata_pcichannel_detach(device_t dev)643 ata_pcichannel_detach(device_t dev)
644 {
645 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
646 struct ata_channel *ch = device_get_softc(dev);
647 int error;
648
649 if (!ch->attached)
650 return (0);
651 ch->attached = 0;
652
653 if ((error = ata_detach(dev)))
654 return error;
655
656 if (ctlr->ch_detach)
657 return (ctlr->ch_detach(dev));
658
659 return (0);
660 }
661 static int
ata_pcichannel_suspend(device_t dev)662 ata_pcichannel_suspend(device_t dev)
663 {
664 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
665 struct ata_channel *ch = device_get_softc(dev);
666 int error;
667
668 if (!ch->attached)
669 return (0);
670
671 if ((error = ata_suspend(dev)))
672 return (error);
673
674 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev)))
675 return (error);
676
677 return (0);
678 }
679
680 static int
ata_pcichannel_resume(device_t dev)681 ata_pcichannel_resume(device_t dev)
682 {
683 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
684 struct ata_channel *ch = device_get_softc(dev);
685 int error;
686
687 if (!ch->attached)
688 return (0);
689
690 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev)))
691 return (error);
692
693 return ata_resume(dev);
694 }
695
696 static void
ata_pcichannel_reset(device_t dev)697 ata_pcichannel_reset(device_t dev)
698 {
699 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
700 struct ata_channel *ch = device_get_softc(dev);
701
702 /* if DMA engine present reset it */
703 if (ch->dma.reset)
704 ch->dma.reset(dev);
705
706 /* reset the controller HW */
707 if (ctlr->reset)
708 ctlr->reset(dev);
709 else
710 ata_generic_reset(dev);
711 }
712
713 static int
ata_pcichannel_setmode(device_t dev,int target,int mode)714 ata_pcichannel_setmode(device_t dev, int target, int mode)
715 {
716 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
717
718 if (ctlr->setmode)
719 return (ctlr->setmode(dev, target, mode));
720 else
721 return (ata_generic_setmode(dev, target, mode));
722 }
723
724 static int
ata_pcichannel_getrev(device_t dev,int target)725 ata_pcichannel_getrev(device_t dev, int target)
726 {
727 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
728 struct ata_channel *ch = device_get_softc(dev);
729
730 if (ch->flags & ATA_SATA) {
731 if (ctlr->getrev)
732 return (ctlr->getrev(dev, target));
733 else
734 return (0xff);
735 } else
736 return (0);
737 }
738
739 static device_method_t ata_pcichannel_methods[] = {
740 /* device interface */
741 DEVMETHOD(device_probe, ata_pcichannel_probe),
742 DEVMETHOD(device_attach, ata_pcichannel_attach),
743 DEVMETHOD(device_detach, ata_pcichannel_detach),
744 DEVMETHOD(device_shutdown, bus_generic_shutdown),
745 DEVMETHOD(device_suspend, ata_pcichannel_suspend),
746 DEVMETHOD(device_resume, ata_pcichannel_resume),
747
748 /* ATA methods */
749 DEVMETHOD(ata_setmode, ata_pcichannel_setmode),
750 DEVMETHOD(ata_getrev, ata_pcichannel_getrev),
751 DEVMETHOD(ata_reset, ata_pcichannel_reset),
752
753 DEVMETHOD_END
754 };
755
756 driver_t ata_pcichannel_driver = {
757 "ata",
758 ata_pcichannel_methods,
759 sizeof(struct ata_channel),
760 };
761
762 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, NULL, NULL);
763
764 /*
765 * misc support functions
766 */
767 int
ata_legacy(device_t dev)768 ata_legacy(device_t dev)
769 {
770 return (((pci_read_config(dev, PCIR_SUBCLASS, 1) == PCIS_STORAGE_IDE) &&
771 (pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&&
772 ((pci_read_config(dev, PCIR_PROGIF, 1) &
773 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) !=
774 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) ||
775 (!pci_read_config(dev, PCIR_BAR(0), 4) &&
776 !pci_read_config(dev, PCIR_BAR(1), 4) &&
777 !pci_read_config(dev, PCIR_BAR(2), 4) &&
778 !pci_read_config(dev, PCIR_BAR(3), 4) &&
779 !pci_read_config(dev, PCIR_BAR(5), 4)));
780 }
781
782 void
ata_generic_intr(void * data)783 ata_generic_intr(void *data)
784 {
785 struct ata_pci_controller *ctlr = data;
786 struct ata_channel *ch;
787 int unit;
788
789 for (unit = 0; unit < ATA_PCI_MAX_CH; unit++) {
790 if ((ch = ctlr->interrupt[unit].argument))
791 ctlr->interrupt[unit].function(ch);
792 }
793 }
794
795 int
ata_setup_interrupt(device_t dev,void * intr_func)796 ata_setup_interrupt(device_t dev, void *intr_func)
797 {
798 struct ata_pci_controller *ctlr = device_get_softc(dev);
799 int i, msi = 0;
800
801 if (!ctlr->legacy) {
802 if (resource_int_value(device_get_name(dev),
803 device_get_unit(dev), "msi", &i) == 0 && i != 0)
804 msi = 1;
805 if (msi && pci_msi_count(dev) > 0 && pci_alloc_msi(dev, &msi) == 0) {
806 ctlr->r_irq_rid = 0x1;
807 } else {
808 msi = 0;
809 ctlr->r_irq_rid = ATA_IRQ_RID;
810 }
811 if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
812 &ctlr->r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) {
813 device_printf(dev, "unable to map interrupt\n");
814 if (msi)
815 pci_release_msi(dev);
816 return ENXIO;
817 }
818 if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
819 intr_func, ctlr, &ctlr->handle))) {
820 device_printf(dev, "unable to setup interrupt\n");
821 bus_release_resource(dev,
822 SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq);
823 if (msi)
824 pci_release_msi(dev);
825 return ENXIO;
826 }
827 }
828 return 0;
829 }
830
831 void
ata_set_desc(device_t dev)832 ata_set_desc(device_t dev)
833 {
834 struct ata_pci_controller *ctlr = device_get_softc(dev);
835
836 device_set_descf(dev, "%s %s %s controller",
837 ata_pcivendor2str(dev), ctlr->chip->text,
838 ata_mode2str(ctlr->chip->max_dma));
839 }
840
841 const struct ata_chip_id *
ata_match_chip(device_t dev,const struct ata_chip_id * index)842 ata_match_chip(device_t dev, const struct ata_chip_id *index)
843 {
844 uint32_t devid;
845 uint8_t revid;
846
847 devid = pci_get_devid(dev);
848 revid = pci_get_revid(dev);
849 while (index->chipid != 0) {
850 if (devid == index->chipid && revid >= index->chiprev)
851 return (index);
852 index++;
853 }
854 return (NULL);
855 }
856
857 const struct ata_chip_id *
ata_find_chip(device_t dev,const struct ata_chip_id * index,int slot)858 ata_find_chip(device_t dev, const struct ata_chip_id *index, int slot)
859 {
860 const struct ata_chip_id *idx;
861 device_t *children;
862 int nchildren, i;
863 uint8_t s;
864
865 if (device_get_children(device_get_parent(dev), &children, &nchildren))
866 return (NULL);
867
868 for (i = 0; i < nchildren; i++) {
869 s = pci_get_slot(children[i]);
870 if ((slot >= 0 && s == slot) || (slot < 0 && s <= -slot)) {
871 idx = ata_match_chip(children[i], index);
872 if (idx != NULL) {
873 free(children, M_TEMP);
874 return (idx);
875 }
876 }
877 }
878 free(children, M_TEMP);
879 return (NULL);
880 }
881
882 const char *
ata_pcivendor2str(device_t dev)883 ata_pcivendor2str(device_t dev)
884 {
885 switch (pci_get_vendor(dev)) {
886 case ATA_ACARD_ID: return "Acard";
887 case ATA_ACER_LABS_ID: return "AcerLabs";
888 case ATA_AMD_ID: return "AMD";
889 case ATA_ADAPTEC_ID: return "Adaptec";
890 case ATA_ATI_ID: return "ATI";
891 case ATA_CYRIX_ID: return "Cyrix";
892 case ATA_CYPRESS_ID: return "Cypress";
893 case ATA_HIGHPOINT_ID: return "HighPoint";
894 case ATA_INTEL_ID: return "Intel";
895 case ATA_ITE_ID: return "ITE";
896 case ATA_JMICRON_ID: return "JMicron";
897 case ATA_MARVELL_ID: return "Marvell";
898 case ATA_MARVELL2_ID: return "Marvell";
899 case ATA_NATIONAL_ID: return "National";
900 case ATA_NETCELL_ID: return "Netcell";
901 case ATA_NVIDIA_ID: return "nVidia";
902 case ATA_PROMISE_ID: return "Promise";
903 case ATA_SERVERWORKS_ID: return "ServerWorks";
904 case ATA_SILICON_IMAGE_ID: return "SiI";
905 case ATA_SIS_ID: return "SiS";
906 case ATA_VIA_ID: return "VIA";
907 case ATA_CENATEK_ID: return "Cenatek";
908 case ATA_MICRON_ID: return "Micron";
909 default: return "Generic";
910 }
911 }
912
913 int
ata_mode2idx(int mode)914 ata_mode2idx(int mode)
915 {
916 if ((mode & ATA_DMA_MASK) == ATA_UDMA0)
917 return (mode & ATA_MODE_MASK) + 8;
918 if ((mode & ATA_DMA_MASK) == ATA_WDMA0)
919 return (mode & ATA_MODE_MASK) + 5;
920 return (mode & ATA_MODE_MASK) - ATA_PIO0;
921 }
922