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/stdarg.h>
40 #include <sys/taskqueue.h>
41
42 #include <vm/uma.h>
43
44 #include <machine/resource.h>
45 #include <machine/bus.h>
46 #include <sys/rman.h>
47
48 #include <dev/pci/pcivar.h>
49 #include <dev/pci/pcireg.h>
50 #include <dev/ata/ata-all.h>
51 #include <dev/ata/ata-pci.h>
52 #include <ata_if.h>
53
54 MALLOC_DEFINE(M_ATAPCI, "ata_pci", "ATA driver PCI");
55
56 /* misc defines */
57 #define IOMASK 0xfffffffc
58
59 /*
60 * generic PCI ATA device probe
61 */
62 int
ata_pci_probe(device_t dev)63 ata_pci_probe(device_t dev)
64 {
65 struct ata_pci_controller *ctlr = device_get_softc(dev);
66
67 /* is this a storage class device ? */
68 if (pci_get_class(dev) != PCIC_STORAGE)
69 return (ENXIO);
70
71 /* is this an IDE/ATA type device ? */
72 if (pci_get_subclass(dev) != PCIS_STORAGE_IDE)
73 return (ENXIO);
74
75 device_set_descf(dev, "%s ATA controller", ata_pcivendor2str(dev));
76 ctlr->chipinit = ata_generic_chipinit;
77
78 /* we are a low priority handler */
79 return (BUS_PROBE_GENERIC);
80 }
81
82 int
ata_pci_attach(device_t dev)83 ata_pci_attach(device_t dev)
84 {
85 struct ata_pci_controller *ctlr = device_get_softc(dev);
86 device_t child;
87 u_int32_t cmd;
88 int unit;
89
90 /* do chipset specific setups only needed once */
91 ctlr->legacy = ata_legacy(dev);
92 if (ctlr->legacy || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK)
93 ctlr->channels = 2;
94 else
95 ctlr->channels = 1;
96 ctlr->ichannels = -1;
97 ctlr->ch_attach = ata_pci_ch_attach;
98 ctlr->ch_detach = ata_pci_ch_detach;
99 ctlr->dev = dev;
100
101 /* if needed try to enable busmastering */
102 pci_enable_busmaster(dev);
103 cmd = pci_read_config(dev, PCIR_COMMAND, 2);
104
105 /* if busmastering mode "stuck" use it */
106 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) {
107 ctlr->r_type1 = SYS_RES_IOPORT;
108 ctlr->r_rid1 = ATA_BMADDR_RID;
109 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1,
110 RF_ACTIVE);
111 }
112
113 if (ctlr->chipinit(dev)) {
114 if (ctlr->r_res1)
115 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1,
116 ctlr->r_res1);
117 return ENXIO;
118 }
119
120 /* attach all channels on this controller */
121 for (unit = 0; unit < ctlr->channels; unit++) {
122 if ((ctlr->ichannels & (1 << unit)) == 0)
123 continue;
124 child = device_add_child(dev, "ata",
125 ((unit == 0 || unit == 1) && ctlr->legacy) ?
126 unit : devclass_find_free_unit(ata_devclass, 2));
127 if (child == NULL)
128 device_printf(dev, "failed to add ata child device\n");
129 else
130 device_set_ivars(child, (void *)(intptr_t)unit);
131 }
132 bus_attach_children(dev);
133 return 0;
134 }
135
136 int
ata_pci_detach(device_t dev)137 ata_pci_detach(device_t dev)
138 {
139 struct ata_pci_controller *ctlr = device_get_softc(dev);
140 int error;
141
142 /* detach & delete all children */
143 error = bus_generic_detach(dev);
144 if (error != 0)
145 return (error);
146
147 if (ctlr->r_irq) {
148 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle);
149 bus_release_resource(dev, SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq);
150 if (ctlr->r_irq_rid != ATA_IRQ_RID)
151 pci_release_msi(dev);
152 }
153 if (ctlr->chipdeinit != NULL)
154 ctlr->chipdeinit(dev);
155 if (ctlr->r_res2) {
156 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
157 }
158 if (ctlr->r_res1) {
159 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
160 }
161
162 return 0;
163 }
164
165 int
ata_pci_suspend(device_t dev)166 ata_pci_suspend(device_t dev)
167 {
168 struct ata_pci_controller *ctlr = device_get_softc(dev);
169 int error = 0;
170
171 bus_generic_suspend(dev);
172 if (ctlr->suspend)
173 error = ctlr->suspend(dev);
174 return error;
175 }
176
177 int
ata_pci_resume(device_t dev)178 ata_pci_resume(device_t dev)
179 {
180 struct ata_pci_controller *ctlr = device_get_softc(dev);
181 int error = 0;
182
183 if (ctlr->resume)
184 error = ctlr->resume(dev);
185 bus_generic_resume(dev);
186 return error;
187 }
188
189 int
ata_pci_read_ivar(device_t dev,device_t child,int which,uintptr_t * result)190 ata_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
191 {
192
193 return (BUS_READ_IVAR(device_get_parent(dev), dev, which, result));
194 }
195
196 int
ata_pci_write_ivar(device_t dev,device_t child,int which,uintptr_t value)197 ata_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
198 {
199
200 return (BUS_WRITE_IVAR(device_get_parent(dev), dev, which, value));
201 }
202
203 uint32_t
ata_pci_read_config(device_t dev,device_t child,int reg,int width)204 ata_pci_read_config(device_t dev, device_t child, int reg, int width)
205 {
206
207 return (pci_read_config(dev, reg, width));
208 }
209
210 void
ata_pci_write_config(device_t dev,device_t child,int reg,uint32_t val,int width)211 ata_pci_write_config(device_t dev, device_t child, int reg,
212 uint32_t val, int width)
213 {
214
215 pci_write_config(dev, reg, val, width);
216 }
217
218 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)219 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid,
220 rman_res_t start, rman_res_t end, rman_res_t count,
221 u_int flags)
222 {
223 struct ata_pci_controller *controller = device_get_softc(dev);
224 struct resource *res = NULL;
225
226 if (device_get_devclass(child) == ata_devclass) {
227 int unit = ((struct ata_channel *)device_get_softc(child))->unit;
228 int myrid;
229
230 if (type == SYS_RES_IOPORT) {
231 switch (*rid) {
232 case ATA_IOADDR_RID:
233 if (controller->legacy) {
234 start = (unit ? ATA_SECONDARY : ATA_PRIMARY);
235 count = ATA_IOSIZE;
236 end = start + count - 1;
237 }
238 myrid = PCIR_BAR(0) + (unit << 3);
239 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
240 SYS_RES_IOPORT, &myrid,
241 start, end, count, flags);
242 break;
243 case ATA_CTLADDR_RID:
244 if (controller->legacy) {
245 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) +
246 ATA_CTLOFFSET;
247 count = ATA_CTLIOSIZE;
248 end = start + count - 1;
249 }
250 myrid = PCIR_BAR(1) + (unit << 3);
251 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
252 SYS_RES_IOPORT, &myrid,
253 start, end, count, flags);
254 break;
255 }
256 }
257 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) {
258 if (controller->legacy) {
259 int irq = (unit == 0 ? 14 : 15);
260
261 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
262 SYS_RES_IRQ, rid, irq, irq, 1, flags);
263 } else
264 res = controller->r_irq;
265 }
266 } else {
267 if (type == SYS_RES_IRQ) {
268 if (*rid != ATA_IRQ_RID)
269 return (NULL);
270 res = controller->r_irq;
271 } else {
272 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
273 type, rid, start, end, count, flags);
274 }
275 }
276 return (res);
277 }
278
279 int
ata_pci_release_resource(device_t dev,device_t child,struct resource * r)280 ata_pci_release_resource(device_t dev, device_t child, struct resource *r)
281 {
282 int rid = rman_get_rid(r);
283 int type = rman_get_type(r);
284
285 if (device_get_devclass(child) == ata_devclass) {
286 struct ata_pci_controller *controller = device_get_softc(dev);
287
288 if (type == SYS_RES_IOPORT) {
289 switch (rid) {
290 case ATA_IOADDR_RID:
291 case ATA_CTLADDR_RID:
292 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev,
293 r);
294 default:
295 return ENOENT;
296 }
297 }
298 if (type == SYS_RES_IRQ) {
299 if (rid != ATA_IRQ_RID)
300 return ENOENT;
301 if (controller->legacy) {
302 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
303 r);
304 } else
305 return 0;
306 }
307 } else {
308 if (type == SYS_RES_IRQ) {
309 if (rid != ATA_IRQ_RID)
310 return (ENOENT);
311 return (0);
312 } else {
313 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
314 r));
315 }
316 }
317 return (EINVAL);
318 }
319
320 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)321 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq,
322 int flags, driver_filter_t *filter, driver_intr_t *function,
323 void *argument, void **cookiep)
324 {
325 struct ata_pci_controller *controller = device_get_softc(dev);
326
327 if (controller->legacy) {
328 return BUS_SETUP_INTR(device_get_parent(dev), child, irq,
329 flags, filter, function, argument, cookiep);
330 } else {
331 struct ata_pci_controller *controller = device_get_softc(dev);
332 int unit;
333
334 if (filter != NULL) {
335 printf("ata-pci.c: we cannot use a filter here\n");
336 return (EINVAL);
337 }
338 if (device_get_devclass(child) == ata_devclass)
339 unit = ((struct ata_channel *)device_get_softc(child))->unit;
340 else
341 unit = ATA_PCI_MAX_CH - 1;
342 controller->interrupt[unit].function = function;
343 controller->interrupt[unit].argument = argument;
344 *cookiep = controller;
345 return 0;
346 }
347 }
348
349 int
ata_pci_teardown_intr(device_t dev,device_t child,struct resource * irq,void * cookie)350 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq,
351 void *cookie)
352 {
353 struct ata_pci_controller *controller = device_get_softc(dev);
354
355 if (controller->legacy) {
356 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie);
357 } else {
358 struct ata_pci_controller *controller = device_get_softc(dev);
359 int unit;
360
361 if (device_get_devclass(child) == ata_devclass)
362 unit = ((struct ata_channel *)device_get_softc(child))->unit;
363 else
364 unit = ATA_PCI_MAX_CH - 1;
365 controller->interrupt[unit].function = NULL;
366 controller->interrupt[unit].argument = NULL;
367 return 0;
368 }
369 }
370
371 int
ata_generic_setmode(device_t dev,int target,int mode)372 ata_generic_setmode(device_t dev, int target, int mode)
373 {
374
375 return (min(mode, ATA_UDMA2));
376 }
377
378 int
ata_generic_chipinit(device_t dev)379 ata_generic_chipinit(device_t dev)
380 {
381 struct ata_pci_controller *ctlr = device_get_softc(dev);
382
383 if (ata_setup_interrupt(dev, ata_generic_intr))
384 return ENXIO;
385 ctlr->setmode = ata_generic_setmode;
386 return 0;
387 }
388
389 int
ata_pci_ch_attach(device_t dev)390 ata_pci_ch_attach(device_t dev)
391 {
392 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
393 struct ata_channel *ch = device_get_softc(dev);
394 struct resource *io = NULL, *ctlio = NULL;
395 int i, rid;
396
397 rid = ATA_IOADDR_RID;
398 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE)))
399 return ENXIO;
400
401 rid = ATA_CTLADDR_RID;
402 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){
403 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
404 return ENXIO;
405 }
406
407 ata_pci_dmainit(dev);
408
409 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
410 ch->r_io[i].res = io;
411 ch->r_io[i].offset = i;
412 }
413 ch->r_io[ATA_CONTROL].res = ctlio;
414 ch->r_io[ATA_CONTROL].offset = ctlr->legacy ? 0 : 2;
415 ch->r_io[ATA_IDX_ADDR].res = io;
416 ata_default_registers(dev);
417 if (ctlr->r_res1) {
418 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
419 ch->r_io[i].res = ctlr->r_res1;
420 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE);
421 }
422 }
423
424 ata_pci_hw(dev);
425 return 0;
426 }
427
428 int
ata_pci_ch_detach(device_t dev)429 ata_pci_ch_detach(device_t dev)
430 {
431 struct ata_channel *ch = device_get_softc(dev);
432
433 ata_pci_dmafini(dev);
434
435 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID,
436 ch->r_io[ATA_CONTROL].res);
437 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID,
438 ch->r_io[ATA_IDX_ADDR].res);
439
440 return (0);
441 }
442
443 int
ata_pci_status(device_t dev)444 ata_pci_status(device_t dev)
445 {
446 struct ata_pci_controller *controller =
447 device_get_softc(device_get_parent(dev));
448 struct ata_channel *ch = device_get_softc(dev);
449
450 if ((dumping || !controller->legacy) &&
451 ((ch->flags & ATA_ALWAYS_DMASTAT) ||
452 (ch->dma.flags & ATA_DMA_ACTIVE))) {
453 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
454
455 if ((bmstat & ATA_BMSTAT_INTERRUPT) == 0)
456 return 0;
457 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR);
458 DELAY(1);
459 }
460 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) {
461 DELAY(100);
462 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY)
463 return 0;
464 }
465 return 1;
466 }
467
468 void
ata_pci_hw(device_t dev)469 ata_pci_hw(device_t dev)
470 {
471 struct ata_channel *ch = device_get_softc(dev);
472
473 ata_generic_hw(dev);
474 ch->hw.status = ata_pci_status;
475 }
476
477 static int
ata_pci_dmastart(struct ata_request * request)478 ata_pci_dmastart(struct ata_request *request)
479 {
480 struct ata_channel *ch = device_get_softc(request->parent);
481
482 ATA_DEBUG_RQ(request, "dmastart");
483
484 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
485 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
486 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
487 ch->dma.flags |= ATA_DMA_ACTIVE;
488 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
489 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) |
490 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)|
491 ATA_BMCMD_START_STOP);
492 return 0;
493 }
494
495 static int
ata_pci_dmastop(struct ata_request * request)496 ata_pci_dmastop(struct ata_request *request)
497 {
498 struct ata_channel *ch = device_get_softc(request->parent);
499 int error;
500
501 ATA_DEBUG_RQ(request, "dmastop");
502
503 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
504 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
505 ch->dma.flags &= ~ATA_DMA_ACTIVE;
506 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
507 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
508 return error;
509 }
510
511 static void
ata_pci_dmareset(device_t dev)512 ata_pci_dmareset(device_t dev)
513 {
514 struct ata_channel *ch = device_get_softc(dev);
515 struct ata_request *request;
516
517 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
518 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
519 ch->dma.flags &= ~ATA_DMA_ACTIVE;
520 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
521 if ((request = ch->running)) {
522 device_printf(dev, "DMA reset calling unload\n");
523 ch->dma.unload(request);
524 }
525 }
526
527 void
ata_pci_dmainit(device_t dev)528 ata_pci_dmainit(device_t dev)
529 {
530 struct ata_channel *ch = device_get_softc(dev);
531
532 ata_dmainit(dev);
533 ch->dma.start = ata_pci_dmastart;
534 ch->dma.stop = ata_pci_dmastop;
535 ch->dma.reset = ata_pci_dmareset;
536 }
537
538 void
ata_pci_dmafini(device_t dev)539 ata_pci_dmafini(device_t dev)
540 {
541
542 ata_dmafini(dev);
543 }
544
545 int
ata_pci_print_child(device_t dev,device_t child)546 ata_pci_print_child(device_t dev, device_t child)
547 {
548 int retval;
549
550 retval = bus_print_child_header(dev, child);
551 retval += printf(" at channel %d",
552 (int)(intptr_t)device_get_ivars(child));
553 retval += bus_print_child_footer(dev, child);
554
555 return (retval);
556 }
557
558 int
ata_pci_child_location(device_t dev,device_t child,struct sbuf * sb)559 ata_pci_child_location(device_t dev, device_t child, struct sbuf *sb)
560 {
561
562 sbuf_printf(sb, "channel=%d",
563 (int)(intptr_t)device_get_ivars(child));
564 return (0);
565 }
566
567 static bus_dma_tag_t
ata_pci_get_dma_tag(device_t bus,device_t child)568 ata_pci_get_dma_tag(device_t bus, device_t child)
569 {
570
571 return (bus_get_dma_tag(bus));
572 }
573
574 static device_method_t ata_pci_methods[] = {
575 /* device interface */
576 DEVMETHOD(device_probe, ata_pci_probe),
577 DEVMETHOD(device_attach, ata_pci_attach),
578 DEVMETHOD(device_detach, ata_pci_detach),
579 DEVMETHOD(device_suspend, ata_pci_suspend),
580 DEVMETHOD(device_resume, ata_pci_resume),
581 DEVMETHOD(device_shutdown, bus_generic_shutdown),
582
583 /* bus methods */
584 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar),
585 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar),
586 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource),
587 DEVMETHOD(bus_release_resource, ata_pci_release_resource),
588 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
589 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
590 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr),
591 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr),
592 DEVMETHOD(pci_read_config, ata_pci_read_config),
593 DEVMETHOD(pci_write_config, ata_pci_write_config),
594 DEVMETHOD(bus_print_child, ata_pci_print_child),
595 DEVMETHOD(bus_child_location, ata_pci_child_location),
596 DEVMETHOD(bus_get_dma_tag, ata_pci_get_dma_tag),
597
598 DEVMETHOD_END
599 };
600
601 static driver_t ata_pci_driver = {
602 "atapci",
603 ata_pci_methods,
604 sizeof(struct ata_pci_controller),
605 };
606
607 DRIVER_MODULE(atapci, pci, ata_pci_driver, NULL, NULL);
608 MODULE_VERSION(atapci, 1);
609 MODULE_DEPEND(atapci, ata, 1, 1, 1);
610
611 static int
ata_pcichannel_probe(device_t dev)612 ata_pcichannel_probe(device_t dev)
613 {
614
615 if ((intptr_t)device_get_ivars(dev) < 0)
616 return (ENXIO);
617 device_set_desc(dev, "ATA channel");
618
619 return ata_probe(dev);
620 }
621
622 static int
ata_pcichannel_attach(device_t dev)623 ata_pcichannel_attach(device_t dev)
624 {
625 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
626 struct ata_channel *ch = device_get_softc(dev);
627 int error;
628
629 if (ch->attached)
630 return (0);
631 ch->attached = 1;
632
633 ch->dev = dev;
634 ch->unit = (intptr_t)device_get_ivars(dev);
635
636 resource_int_value(device_get_name(dev),
637 device_get_unit(dev), "pm_level", &ch->pm_level);
638
639 if ((error = ctlr->ch_attach(dev)))
640 return error;
641
642 return ata_attach(dev);
643 }
644
645 static int
ata_pcichannel_detach(device_t dev)646 ata_pcichannel_detach(device_t dev)
647 {
648 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
649 struct ata_channel *ch = device_get_softc(dev);
650 int error;
651
652 if (!ch->attached)
653 return (0);
654 ch->attached = 0;
655
656 if ((error = ata_detach(dev)))
657 return error;
658
659 if (ctlr->ch_detach)
660 return (ctlr->ch_detach(dev));
661
662 return (0);
663 }
664 static int
ata_pcichannel_suspend(device_t dev)665 ata_pcichannel_suspend(device_t dev)
666 {
667 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
668 struct ata_channel *ch = device_get_softc(dev);
669 int error;
670
671 if (!ch->attached)
672 return (0);
673
674 if ((error = ata_suspend(dev)))
675 return (error);
676
677 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev)))
678 return (error);
679
680 return (0);
681 }
682
683 static int
ata_pcichannel_resume(device_t dev)684 ata_pcichannel_resume(device_t dev)
685 {
686 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
687 struct ata_channel *ch = device_get_softc(dev);
688 int error;
689
690 if (!ch->attached)
691 return (0);
692
693 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev)))
694 return (error);
695
696 return ata_resume(dev);
697 }
698
699 static void
ata_pcichannel_reset(device_t dev)700 ata_pcichannel_reset(device_t dev)
701 {
702 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
703 struct ata_channel *ch = device_get_softc(dev);
704
705 /* if DMA engine present reset it */
706 if (ch->dma.reset)
707 ch->dma.reset(dev);
708
709 /* reset the controller HW */
710 if (ctlr->reset)
711 ctlr->reset(dev);
712 else
713 ata_generic_reset(dev);
714 }
715
716 static int
ata_pcichannel_setmode(device_t dev,int target,int mode)717 ata_pcichannel_setmode(device_t dev, int target, int mode)
718 {
719 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
720
721 if (ctlr->setmode)
722 return (ctlr->setmode(dev, target, mode));
723 else
724 return (ata_generic_setmode(dev, target, mode));
725 }
726
727 static int
ata_pcichannel_getrev(device_t dev,int target)728 ata_pcichannel_getrev(device_t dev, int target)
729 {
730 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
731 struct ata_channel *ch = device_get_softc(dev);
732
733 if (ch->flags & ATA_SATA) {
734 if (ctlr->getrev)
735 return (ctlr->getrev(dev, target));
736 else
737 return (0xff);
738 } else
739 return (0);
740 }
741
742 static device_method_t ata_pcichannel_methods[] = {
743 /* device interface */
744 DEVMETHOD(device_probe, ata_pcichannel_probe),
745 DEVMETHOD(device_attach, ata_pcichannel_attach),
746 DEVMETHOD(device_detach, ata_pcichannel_detach),
747 DEVMETHOD(device_shutdown, bus_generic_shutdown),
748 DEVMETHOD(device_suspend, ata_pcichannel_suspend),
749 DEVMETHOD(device_resume, ata_pcichannel_resume),
750
751 /* ATA methods */
752 DEVMETHOD(ata_setmode, ata_pcichannel_setmode),
753 DEVMETHOD(ata_getrev, ata_pcichannel_getrev),
754 DEVMETHOD(ata_reset, ata_pcichannel_reset),
755
756 DEVMETHOD_END
757 };
758
759 driver_t ata_pcichannel_driver = {
760 "ata",
761 ata_pcichannel_methods,
762 sizeof(struct ata_channel),
763 };
764
765 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, NULL, NULL);
766
767 /*
768 * misc support functions
769 */
770 int
ata_legacy(device_t dev)771 ata_legacy(device_t dev)
772 {
773 return (((pci_read_config(dev, PCIR_SUBCLASS, 1) == PCIS_STORAGE_IDE) &&
774 (pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&&
775 ((pci_read_config(dev, PCIR_PROGIF, 1) &
776 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) !=
777 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) ||
778 (!pci_read_config(dev, PCIR_BAR(0), 4) &&
779 !pci_read_config(dev, PCIR_BAR(1), 4) &&
780 !pci_read_config(dev, PCIR_BAR(2), 4) &&
781 !pci_read_config(dev, PCIR_BAR(3), 4) &&
782 !pci_read_config(dev, PCIR_BAR(5), 4)));
783 }
784
785 void
ata_generic_intr(void * data)786 ata_generic_intr(void *data)
787 {
788 struct ata_pci_controller *ctlr = data;
789 struct ata_channel *ch;
790 int unit;
791
792 for (unit = 0; unit < ATA_PCI_MAX_CH; unit++) {
793 if ((ch = ctlr->interrupt[unit].argument))
794 ctlr->interrupt[unit].function(ch);
795 }
796 }
797
798 int
ata_setup_interrupt(device_t dev,void * intr_func)799 ata_setup_interrupt(device_t dev, void *intr_func)
800 {
801 struct ata_pci_controller *ctlr = device_get_softc(dev);
802 int i, msi = 0;
803
804 if (!ctlr->legacy) {
805 if (resource_int_value(device_get_name(dev),
806 device_get_unit(dev), "msi", &i) == 0 && i != 0)
807 msi = 1;
808 if (msi && pci_msi_count(dev) > 0 && pci_alloc_msi(dev, &msi) == 0) {
809 ctlr->r_irq_rid = 0x1;
810 } else {
811 msi = 0;
812 ctlr->r_irq_rid = ATA_IRQ_RID;
813 }
814 if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
815 &ctlr->r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) {
816 device_printf(dev, "unable to map interrupt\n");
817 if (msi)
818 pci_release_msi(dev);
819 return ENXIO;
820 }
821 if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
822 intr_func, ctlr, &ctlr->handle))) {
823 device_printf(dev, "unable to setup interrupt\n");
824 bus_release_resource(dev,
825 SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq);
826 if (msi)
827 pci_release_msi(dev);
828 return ENXIO;
829 }
830 }
831 return 0;
832 }
833
834 void
ata_set_desc(device_t dev)835 ata_set_desc(device_t dev)
836 {
837 struct ata_pci_controller *ctlr = device_get_softc(dev);
838
839 device_set_descf(dev, "%s %s %s controller",
840 ata_pcivendor2str(dev), ctlr->chip->text,
841 ata_mode2str(ctlr->chip->max_dma));
842 }
843
844 const struct ata_chip_id *
ata_match_chip(device_t dev,const struct ata_chip_id * index)845 ata_match_chip(device_t dev, const struct ata_chip_id *index)
846 {
847 uint32_t devid;
848 uint8_t revid;
849
850 devid = pci_get_devid(dev);
851 revid = pci_get_revid(dev);
852 while (index->chipid != 0) {
853 if (devid == index->chipid && revid >= index->chiprev)
854 return (index);
855 index++;
856 }
857 return (NULL);
858 }
859
860 const struct ata_chip_id *
ata_find_chip(device_t dev,const struct ata_chip_id * index,int slot)861 ata_find_chip(device_t dev, const struct ata_chip_id *index, int slot)
862 {
863 const struct ata_chip_id *idx;
864 device_t *children;
865 int nchildren, i;
866 uint8_t s;
867
868 if (device_get_children(device_get_parent(dev), &children, &nchildren))
869 return (NULL);
870
871 for (i = 0; i < nchildren; i++) {
872 s = pci_get_slot(children[i]);
873 if ((slot >= 0 && s == slot) || (slot < 0 && s <= -slot)) {
874 idx = ata_match_chip(children[i], index);
875 if (idx != NULL) {
876 free(children, M_TEMP);
877 return (idx);
878 }
879 }
880 }
881 free(children, M_TEMP);
882 return (NULL);
883 }
884
885 const char *
ata_pcivendor2str(device_t dev)886 ata_pcivendor2str(device_t dev)
887 {
888 switch (pci_get_vendor(dev)) {
889 case ATA_ACARD_ID: return "Acard";
890 case ATA_ACER_LABS_ID: return "AcerLabs";
891 case ATA_AMD_ID: return "AMD";
892 case ATA_ADAPTEC_ID: return "Adaptec";
893 case ATA_ATI_ID: return "ATI";
894 case ATA_CYRIX_ID: return "Cyrix";
895 case ATA_CYPRESS_ID: return "Cypress";
896 case ATA_HIGHPOINT_ID: return "HighPoint";
897 case ATA_INTEL_ID: return "Intel";
898 case ATA_ITE_ID: return "ITE";
899 case ATA_JMICRON_ID: return "JMicron";
900 case ATA_MARVELL_ID: return "Marvell";
901 case ATA_MARVELL2_ID: return "Marvell";
902 case ATA_NATIONAL_ID: return "National";
903 case ATA_NETCELL_ID: return "Netcell";
904 case ATA_NVIDIA_ID: return "nVidia";
905 case ATA_PROMISE_ID: return "Promise";
906 case ATA_SERVERWORKS_ID: return "ServerWorks";
907 case ATA_SILICON_IMAGE_ID: return "SiI";
908 case ATA_SIS_ID: return "SiS";
909 case ATA_VIA_ID: return "VIA";
910 case ATA_CENATEK_ID: return "Cenatek";
911 case ATA_MICRON_ID: return "Micron";
912 default: return "Generic";
913 }
914 }
915
916 int
ata_mode2idx(int mode)917 ata_mode2idx(int mode)
918 {
919 if ((mode & ATA_DMA_MASK) == ATA_UDMA0)
920 return (mode & ATA_MODE_MASK) + 8;
921 if ((mode & ATA_DMA_MASK) == ATA_WDMA0)
922 return (mode & ATA_MODE_MASK) + 5;
923 return (mode & ATA_MODE_MASK) - ATA_PIO0;
924 }
925