1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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/cdefs.h>
30 __FBSDID("$FreeBSD: stable/12/sys/dev/ata/ata-pci.c 372200 2022-07-29 17:05:23Z git2svn $");
31
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/module.h>
36 #include <sys/ata.h>
37 #include <sys/bus.h>
38 #include <sys/conf.h>
39 #include <sys/malloc.h>
40 #include <sys/sema.h>
41 #include <sys/taskqueue.h>
42 #include <vm/uma.h>
43 #include <machine/stdarg.h>
44 #include <machine/resource.h>
45 #include <machine/bus.h>
46 #include <sys/rman.h>
47 #include <dev/pci/pcivar.h>
48 #include <dev/pci/pcireg.h>
49 #include <dev/ata/ata-all.h>
50 #include <dev/ata/ata-pci.h>
51 #include <ata_if.h>
52
53 MALLOC_DEFINE(M_ATAPCI, "ata_pci", "ATA driver PCI");
54
55 /* misc defines */
56 #define IOMASK 0xfffffffc
57
58 /*
59 * generic PCI ATA device probe
60 */
61 int
ata_pci_probe(device_t dev)62 ata_pci_probe(device_t dev)
63 {
64 struct ata_pci_controller *ctlr = device_get_softc(dev);
65 char buffer[64];
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 sprintf(buffer, "%s ATA controller", ata_pcivendor2str(dev));
76 device_set_desc_copy(dev, buffer);
77 ctlr->chipinit = ata_generic_chipinit;
78
79 /* we are a low priority handler */
80 return (BUS_PROBE_GENERIC);
81 }
82
83 int
ata_pci_attach(device_t dev)84 ata_pci_attach(device_t dev)
85 {
86 struct ata_pci_controller *ctlr = device_get_softc(dev);
87 device_t child;
88 u_int32_t cmd;
89 int unit;
90
91 /* do chipset specific setups only needed once */
92 ctlr->legacy = ata_legacy(dev);
93 if (ctlr->legacy || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK)
94 ctlr->channels = 2;
95 else
96 ctlr->channels = 1;
97 ctlr->ichannels = -1;
98 ctlr->ch_attach = ata_pci_ch_attach;
99 ctlr->ch_detach = ata_pci_ch_detach;
100 ctlr->dev = dev;
101
102 /* if needed try to enable busmastering */
103 pci_enable_busmaster(dev);
104 cmd = pci_read_config(dev, PCIR_COMMAND, 2);
105
106 /* if busmastering mode "stuck" use it */
107 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) {
108 ctlr->r_type1 = SYS_RES_IOPORT;
109 ctlr->r_rid1 = ATA_BMADDR_RID;
110 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1,
111 RF_ACTIVE);
112 }
113
114 if (ctlr->chipinit(dev)) {
115 if (ctlr->r_res1)
116 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1,
117 ctlr->r_res1);
118 return ENXIO;
119 }
120
121 /* attach all channels on this controller */
122 for (unit = 0; unit < ctlr->channels; unit++) {
123 if ((ctlr->ichannels & (1 << unit)) == 0)
124 continue;
125 child = device_add_child(dev, "ata",
126 ((unit == 0 || unit == 1) && ctlr->legacy) ?
127 unit : devclass_find_free_unit(ata_devclass, 2));
128 if (child == NULL)
129 device_printf(dev, "failed to add ata child device\n");
130 else
131 device_set_ivars(child, (void *)(intptr_t)unit);
132 }
133 bus_generic_attach(dev);
134 return 0;
135 }
136
137 int
ata_pci_detach(device_t dev)138 ata_pci_detach(device_t dev)
139 {
140 struct ata_pci_controller *ctlr = device_get_softc(dev);
141
142 /* detach & delete all children */
143 device_delete_children(dev);
144
145 if (ctlr->r_irq) {
146 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle);
147 bus_release_resource(dev, SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq);
148 if (ctlr->r_irq_rid != ATA_IRQ_RID)
149 pci_release_msi(dev);
150 }
151 if (ctlr->chipdeinit != NULL)
152 ctlr->chipdeinit(dev);
153 if (ctlr->r_res2) {
154 #ifdef __sparc64__
155 bus_space_unmap(rman_get_bustag(ctlr->r_res2),
156 rman_get_bushandle(ctlr->r_res2), rman_get_size(ctlr->r_res2));
157 #endif
158 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
159 }
160 if (ctlr->r_res1) {
161 #ifdef __sparc64__
162 bus_space_unmap(rman_get_bustag(ctlr->r_res1),
163 rman_get_bushandle(ctlr->r_res1), rman_get_size(ctlr->r_res1));
164 #endif
165 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
166 }
167
168 return 0;
169 }
170
171 int
ata_pci_suspend(device_t dev)172 ata_pci_suspend(device_t dev)
173 {
174 struct ata_pci_controller *ctlr = device_get_softc(dev);
175 int error = 0;
176
177 bus_generic_suspend(dev);
178 if (ctlr->suspend)
179 error = ctlr->suspend(dev);
180 return error;
181 }
182
183 int
ata_pci_resume(device_t dev)184 ata_pci_resume(device_t dev)
185 {
186 struct ata_pci_controller *ctlr = device_get_softc(dev);
187 int error = 0;
188
189 if (ctlr->resume)
190 error = ctlr->resume(dev);
191 bus_generic_resume(dev);
192 return error;
193 }
194
195 int
ata_pci_read_ivar(device_t dev,device_t child,int which,uintptr_t * result)196 ata_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
197 {
198
199 return (BUS_READ_IVAR(device_get_parent(dev), dev, which, result));
200 }
201
202 int
ata_pci_write_ivar(device_t dev,device_t child,int which,uintptr_t value)203 ata_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
204 {
205
206 return (BUS_WRITE_IVAR(device_get_parent(dev), dev, which, value));
207 }
208
209 uint32_t
ata_pci_read_config(device_t dev,device_t child,int reg,int width)210 ata_pci_read_config(device_t dev, device_t child, int reg, int width)
211 {
212
213 return (pci_read_config(dev, reg, width));
214 }
215
216 void
ata_pci_write_config(device_t dev,device_t child,int reg,uint32_t val,int width)217 ata_pci_write_config(device_t dev, device_t child, int reg,
218 uint32_t val, int width)
219 {
220
221 pci_write_config(dev, reg, val, width);
222 }
223
224 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)225 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid,
226 rman_res_t start, rman_res_t end, rman_res_t count,
227 u_int flags)
228 {
229 struct ata_pci_controller *controller = device_get_softc(dev);
230 struct resource *res = NULL;
231
232 if (device_get_devclass(child) == ata_devclass) {
233 int unit = ((struct ata_channel *)device_get_softc(child))->unit;
234 int myrid;
235
236 if (type == SYS_RES_IOPORT) {
237 switch (*rid) {
238 case ATA_IOADDR_RID:
239 if (controller->legacy) {
240 start = (unit ? ATA_SECONDARY : ATA_PRIMARY);
241 count = ATA_IOSIZE;
242 end = start + count - 1;
243 }
244 myrid = PCIR_BAR(0) + (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 case ATA_CTLADDR_RID:
250 if (controller->legacy) {
251 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) +
252 ATA_CTLOFFSET;
253 count = ATA_CTLIOSIZE;
254 end = start + count - 1;
255 }
256 myrid = PCIR_BAR(1) + (unit << 3);
257 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
258 SYS_RES_IOPORT, &myrid,
259 start, end, count, flags);
260 break;
261 }
262 }
263 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) {
264 if (controller->legacy) {
265 int irq = (unit == 0 ? 14 : 15);
266
267 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
268 SYS_RES_IRQ, rid, irq, irq, 1, flags);
269 } else
270 res = controller->r_irq;
271 }
272 } else {
273 if (type == SYS_RES_IRQ) {
274 if (*rid != ATA_IRQ_RID)
275 return (NULL);
276 res = controller->r_irq;
277 } else {
278 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
279 type, rid, start, end, count, flags);
280 }
281 }
282 return (res);
283 }
284
285 int
ata_pci_release_resource(device_t dev,device_t child,int type,int rid,struct resource * r)286 ata_pci_release_resource(device_t dev, device_t child, int type, int rid,
287 struct resource *r)
288 {
289
290 if (device_get_devclass(child) == ata_devclass) {
291 struct ata_pci_controller *controller = device_get_softc(dev);
292 int unit = ((struct ata_channel *)device_get_softc(child))->unit;
293
294 if (type == SYS_RES_IOPORT) {
295 switch (rid) {
296 case ATA_IOADDR_RID:
297 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev,
298 SYS_RES_IOPORT,
299 PCIR_BAR(0) + (unit << 3), r);
300 case ATA_CTLADDR_RID:
301 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev,
302 SYS_RES_IOPORT,
303 PCIR_BAR(1) + (unit << 3), r);
304 default:
305 return ENOENT;
306 }
307 }
308 if (type == SYS_RES_IRQ) {
309 if (rid != ATA_IRQ_RID)
310 return ENOENT;
311 if (controller->legacy) {
312 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
313 SYS_RES_IRQ, rid, r);
314 } else
315 return 0;
316 }
317 } else {
318 if (type == SYS_RES_IRQ) {
319 if (rid != ATA_IRQ_RID)
320 return (ENOENT);
321 return (0);
322 } else {
323 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
324 type, rid, r));
325 }
326 }
327 return (EINVAL);
328 }
329
330 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)331 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq,
332 int flags, driver_filter_t *filter, driver_intr_t *function,
333 void *argument, void **cookiep)
334 {
335 struct ata_pci_controller *controller = device_get_softc(dev);
336
337 if (controller->legacy) {
338 return BUS_SETUP_INTR(device_get_parent(dev), child, irq,
339 flags, filter, function, argument, cookiep);
340 } else {
341 struct ata_pci_controller *controller = device_get_softc(dev);
342 int unit;
343
344 if (filter != NULL) {
345 printf("ata-pci.c: we cannot use a filter here\n");
346 return (EINVAL);
347 }
348 if (device_get_devclass(child) == ata_devclass)
349 unit = ((struct ata_channel *)device_get_softc(child))->unit;
350 else
351 unit = ATA_PCI_MAX_CH - 1;
352 controller->interrupt[unit].function = function;
353 controller->interrupt[unit].argument = argument;
354 *cookiep = controller;
355 return 0;
356 }
357 }
358
359 int
ata_pci_teardown_intr(device_t dev,device_t child,struct resource * irq,void * cookie)360 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq,
361 void *cookie)
362 {
363 struct ata_pci_controller *controller = device_get_softc(dev);
364
365 if (controller->legacy) {
366 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie);
367 } else {
368 struct ata_pci_controller *controller = device_get_softc(dev);
369 int unit;
370
371 if (device_get_devclass(child) == ata_devclass)
372 unit = ((struct ata_channel *)device_get_softc(child))->unit;
373 else
374 unit = ATA_PCI_MAX_CH - 1;
375 controller->interrupt[unit].function = NULL;
376 controller->interrupt[unit].argument = NULL;
377 return 0;
378 }
379 }
380
381 int
ata_generic_setmode(device_t dev,int target,int mode)382 ata_generic_setmode(device_t dev, int target, int mode)
383 {
384
385 return (min(mode, ATA_UDMA2));
386 }
387
388 int
ata_generic_chipinit(device_t dev)389 ata_generic_chipinit(device_t dev)
390 {
391 struct ata_pci_controller *ctlr = device_get_softc(dev);
392
393 if (ata_setup_interrupt(dev, ata_generic_intr))
394 return ENXIO;
395 ctlr->setmode = ata_generic_setmode;
396 return 0;
397 }
398
399 int
ata_pci_ch_attach(device_t dev)400 ata_pci_ch_attach(device_t dev)
401 {
402 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
403 struct ata_channel *ch = device_get_softc(dev);
404 struct resource *io = NULL, *ctlio = NULL;
405 int i, rid;
406
407 rid = ATA_IOADDR_RID;
408 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE)))
409 return ENXIO;
410
411 rid = ATA_CTLADDR_RID;
412 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){
413 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
414 return ENXIO;
415 }
416
417 ata_pci_dmainit(dev);
418
419 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
420 ch->r_io[i].res = io;
421 ch->r_io[i].offset = i;
422 }
423 ch->r_io[ATA_CONTROL].res = ctlio;
424 ch->r_io[ATA_CONTROL].offset = ctlr->legacy ? 0 : 2;
425 ch->r_io[ATA_IDX_ADDR].res = io;
426 ata_default_registers(dev);
427 if (ctlr->r_res1) {
428 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
429 ch->r_io[i].res = ctlr->r_res1;
430 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE);
431 }
432 }
433
434 ata_pci_hw(dev);
435 return 0;
436 }
437
438 int
ata_pci_ch_detach(device_t dev)439 ata_pci_ch_detach(device_t dev)
440 {
441 struct ata_channel *ch = device_get_softc(dev);
442
443 ata_pci_dmafini(dev);
444
445 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID,
446 ch->r_io[ATA_CONTROL].res);
447 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID,
448 ch->r_io[ATA_IDX_ADDR].res);
449
450 return (0);
451 }
452
453 int
ata_pci_status(device_t dev)454 ata_pci_status(device_t dev)
455 {
456 struct ata_pci_controller *controller =
457 device_get_softc(device_get_parent(dev));
458 struct ata_channel *ch = device_get_softc(dev);
459
460 if ((dumping || !controller->legacy) &&
461 ((ch->flags & ATA_ALWAYS_DMASTAT) ||
462 (ch->dma.flags & ATA_DMA_ACTIVE))) {
463 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
464
465 if ((bmstat & ATA_BMSTAT_INTERRUPT) == 0)
466 return 0;
467 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR);
468 DELAY(1);
469 }
470 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) {
471 DELAY(100);
472 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY)
473 return 0;
474 }
475 return 1;
476 }
477
478 void
ata_pci_hw(device_t dev)479 ata_pci_hw(device_t dev)
480 {
481 struct ata_channel *ch = device_get_softc(dev);
482
483 ata_generic_hw(dev);
484 ch->hw.status = ata_pci_status;
485 }
486
487 static int
ata_pci_dmastart(struct ata_request * request)488 ata_pci_dmastart(struct ata_request *request)
489 {
490 struct ata_channel *ch = device_get_softc(request->parent);
491
492 ATA_DEBUG_RQ(request, "dmastart");
493
494 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
495 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
496 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
497 ch->dma.flags |= ATA_DMA_ACTIVE;
498 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
499 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) |
500 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)|
501 ATA_BMCMD_START_STOP);
502 return 0;
503 }
504
505 static int
ata_pci_dmastop(struct ata_request * request)506 ata_pci_dmastop(struct ata_request *request)
507 {
508 struct ata_channel *ch = device_get_softc(request->parent);
509 int error;
510
511 ATA_DEBUG_RQ(request, "dmastop");
512
513 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
514 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
515 ch->dma.flags &= ~ATA_DMA_ACTIVE;
516 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
517 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
518 return error;
519 }
520
521 static void
ata_pci_dmareset(device_t dev)522 ata_pci_dmareset(device_t dev)
523 {
524 struct ata_channel *ch = device_get_softc(dev);
525 struct ata_request *request;
526
527 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
528 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
529 ch->dma.flags &= ~ATA_DMA_ACTIVE;
530 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
531 if ((request = ch->running)) {
532 device_printf(dev, "DMA reset calling unload\n");
533 ch->dma.unload(request);
534 }
535 }
536
537 void
ata_pci_dmainit(device_t dev)538 ata_pci_dmainit(device_t dev)
539 {
540 struct ata_channel *ch = device_get_softc(dev);
541
542 ata_dmainit(dev);
543 ch->dma.start = ata_pci_dmastart;
544 ch->dma.stop = ata_pci_dmastop;
545 ch->dma.reset = ata_pci_dmareset;
546 }
547
548 void
ata_pci_dmafini(device_t dev)549 ata_pci_dmafini(device_t dev)
550 {
551
552 ata_dmafini(dev);
553 }
554
555 int
ata_pci_print_child(device_t dev,device_t child)556 ata_pci_print_child(device_t dev, device_t child)
557 {
558 int retval;
559
560 retval = bus_print_child_header(dev, child);
561 retval += printf(" at channel %d",
562 (int)(intptr_t)device_get_ivars(child));
563 retval += bus_print_child_footer(dev, child);
564
565 return (retval);
566 }
567
568 int
ata_pci_child_location_str(device_t dev,device_t child,char * buf,size_t buflen)569 ata_pci_child_location_str(device_t dev, device_t child, char *buf,
570 size_t buflen)
571 {
572
573 snprintf(buf, buflen, "channel=%d",
574 (int)(intptr_t)device_get_ivars(child));
575 return (0);
576 }
577
578 static bus_dma_tag_t
ata_pci_get_dma_tag(device_t bus,device_t child)579 ata_pci_get_dma_tag(device_t bus, device_t child)
580 {
581
582 return (bus_get_dma_tag(bus));
583 }
584
585 static device_method_t ata_pci_methods[] = {
586 /* device interface */
587 DEVMETHOD(device_probe, ata_pci_probe),
588 DEVMETHOD(device_attach, ata_pci_attach),
589 DEVMETHOD(device_detach, ata_pci_detach),
590 DEVMETHOD(device_suspend, ata_pci_suspend),
591 DEVMETHOD(device_resume, ata_pci_resume),
592 DEVMETHOD(device_shutdown, bus_generic_shutdown),
593
594 /* bus methods */
595 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar),
596 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar),
597 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource),
598 DEVMETHOD(bus_release_resource, ata_pci_release_resource),
599 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
600 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
601 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr),
602 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr),
603 DEVMETHOD(pci_read_config, ata_pci_read_config),
604 DEVMETHOD(pci_write_config, ata_pci_write_config),
605 DEVMETHOD(bus_print_child, ata_pci_print_child),
606 DEVMETHOD(bus_child_location_str, ata_pci_child_location_str),
607 DEVMETHOD(bus_get_dma_tag, ata_pci_get_dma_tag),
608
609 DEVMETHOD_END
610 };
611
612 devclass_t ata_pci_devclass;
613
614 static driver_t ata_pci_driver = {
615 "atapci",
616 ata_pci_methods,
617 sizeof(struct ata_pci_controller),
618 };
619
620 DRIVER_MODULE(atapci, pci, ata_pci_driver, ata_pci_devclass, NULL, NULL);
621 MODULE_VERSION(atapci, 1);
622 MODULE_DEPEND(atapci, ata, 1, 1, 1);
623
624 static int
ata_pcichannel_probe(device_t dev)625 ata_pcichannel_probe(device_t dev)
626 {
627
628 if ((intptr_t)device_get_ivars(dev) < 0)
629 return (ENXIO);
630 device_set_desc(dev, "ATA channel");
631
632 return ata_probe(dev);
633 }
634
635 static int
ata_pcichannel_attach(device_t dev)636 ata_pcichannel_attach(device_t dev)
637 {
638 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
639 struct ata_channel *ch = device_get_softc(dev);
640 int error;
641
642 if (ch->attached)
643 return (0);
644 ch->attached = 1;
645
646 ch->dev = dev;
647 ch->unit = (intptr_t)device_get_ivars(dev);
648
649 resource_int_value(device_get_name(dev),
650 device_get_unit(dev), "pm_level", &ch->pm_level);
651
652 if ((error = ctlr->ch_attach(dev)))
653 return error;
654
655 return ata_attach(dev);
656 }
657
658 static int
ata_pcichannel_detach(device_t dev)659 ata_pcichannel_detach(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 ch->attached = 0;
668
669 if ((error = ata_detach(dev)))
670 return error;
671
672 if (ctlr->ch_detach)
673 return (ctlr->ch_detach(dev));
674
675 return (0);
676 }
677 static int
ata_pcichannel_suspend(device_t dev)678 ata_pcichannel_suspend(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 ((error = ata_suspend(dev)))
688 return (error);
689
690 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev)))
691 return (error);
692
693 return (0);
694 }
695
696 static int
ata_pcichannel_resume(device_t dev)697 ata_pcichannel_resume(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 int error;
702
703 if (!ch->attached)
704 return (0);
705
706 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev)))
707 return (error);
708
709 return ata_resume(dev);
710 }
711
712 static void
ata_pcichannel_reset(device_t dev)713 ata_pcichannel_reset(device_t dev)
714 {
715 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
716 struct ata_channel *ch = device_get_softc(dev);
717
718 /* if DMA engine present reset it */
719 if (ch->dma.reset)
720 ch->dma.reset(dev);
721
722 /* reset the controller HW */
723 if (ctlr->reset)
724 ctlr->reset(dev);
725 else
726 ata_generic_reset(dev);
727 }
728
729 static int
ata_pcichannel_setmode(device_t dev,int target,int mode)730 ata_pcichannel_setmode(device_t dev, int target, int mode)
731 {
732 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
733
734 if (ctlr->setmode)
735 return (ctlr->setmode(dev, target, mode));
736 else
737 return (ata_generic_setmode(dev, target, mode));
738 }
739
740 static int
ata_pcichannel_getrev(device_t dev,int target)741 ata_pcichannel_getrev(device_t dev, int target)
742 {
743 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
744 struct ata_channel *ch = device_get_softc(dev);
745
746 if (ch->flags & ATA_SATA) {
747 if (ctlr->getrev)
748 return (ctlr->getrev(dev, target));
749 else
750 return (0xff);
751 } else
752 return (0);
753 }
754
755 static device_method_t ata_pcichannel_methods[] = {
756 /* device interface */
757 DEVMETHOD(device_probe, ata_pcichannel_probe),
758 DEVMETHOD(device_attach, ata_pcichannel_attach),
759 DEVMETHOD(device_detach, ata_pcichannel_detach),
760 DEVMETHOD(device_shutdown, bus_generic_shutdown),
761 DEVMETHOD(device_suspend, ata_pcichannel_suspend),
762 DEVMETHOD(device_resume, ata_pcichannel_resume),
763
764 /* ATA methods */
765 DEVMETHOD(ata_setmode, ata_pcichannel_setmode),
766 DEVMETHOD(ata_getrev, ata_pcichannel_getrev),
767 DEVMETHOD(ata_reset, ata_pcichannel_reset),
768
769 DEVMETHOD_END
770 };
771
772 driver_t ata_pcichannel_driver = {
773 "ata",
774 ata_pcichannel_methods,
775 sizeof(struct ata_channel),
776 };
777
778 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, NULL, NULL);
779
780 /*
781 * misc support functions
782 */
783 int
ata_legacy(device_t dev)784 ata_legacy(device_t dev)
785 {
786 return (((pci_read_config(dev, PCIR_SUBCLASS, 1) == PCIS_STORAGE_IDE) &&
787 (pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&&
788 ((pci_read_config(dev, PCIR_PROGIF, 1) &
789 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) !=
790 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) ||
791 (!pci_read_config(dev, PCIR_BAR(0), 4) &&
792 !pci_read_config(dev, PCIR_BAR(1), 4) &&
793 !pci_read_config(dev, PCIR_BAR(2), 4) &&
794 !pci_read_config(dev, PCIR_BAR(3), 4) &&
795 !pci_read_config(dev, PCIR_BAR(5), 4)));
796 }
797
798 void
ata_generic_intr(void * data)799 ata_generic_intr(void *data)
800 {
801 struct ata_pci_controller *ctlr = data;
802 struct ata_channel *ch;
803 int unit;
804
805 for (unit = 0; unit < ATA_PCI_MAX_CH; unit++) {
806 if ((ch = ctlr->interrupt[unit].argument))
807 ctlr->interrupt[unit].function(ch);
808 }
809 }
810
811 int
ata_setup_interrupt(device_t dev,void * intr_func)812 ata_setup_interrupt(device_t dev, void *intr_func)
813 {
814 struct ata_pci_controller *ctlr = device_get_softc(dev);
815 int i, msi = 0;
816
817 if (!ctlr->legacy) {
818 if (resource_int_value(device_get_name(dev),
819 device_get_unit(dev), "msi", &i) == 0 && i != 0)
820 msi = 1;
821 if (msi && pci_msi_count(dev) > 0 && pci_alloc_msi(dev, &msi) == 0) {
822 ctlr->r_irq_rid = 0x1;
823 } else {
824 msi = 0;
825 ctlr->r_irq_rid = ATA_IRQ_RID;
826 }
827 if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
828 &ctlr->r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) {
829 device_printf(dev, "unable to map interrupt\n");
830 if (msi)
831 pci_release_msi(dev);
832 return ENXIO;
833 }
834 if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
835 intr_func, ctlr, &ctlr->handle))) {
836 device_printf(dev, "unable to setup interrupt\n");
837 bus_release_resource(dev,
838 SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq);
839 if (msi)
840 pci_release_msi(dev);
841 return ENXIO;
842 }
843 }
844 return 0;
845 }
846
847 void
ata_set_desc(device_t dev)848 ata_set_desc(device_t dev)
849 {
850 struct ata_pci_controller *ctlr = device_get_softc(dev);
851 char buffer[128];
852
853 sprintf(buffer, "%s %s %s controller",
854 ata_pcivendor2str(dev), ctlr->chip->text,
855 ata_mode2str(ctlr->chip->max_dma));
856 device_set_desc_copy(dev, buffer);
857 }
858
859 const struct ata_chip_id *
ata_match_chip(device_t dev,const struct ata_chip_id * index)860 ata_match_chip(device_t dev, const struct ata_chip_id *index)
861 {
862 uint32_t devid;
863 uint8_t revid;
864
865 devid = pci_get_devid(dev);
866 revid = pci_get_revid(dev);
867 while (index->chipid != 0) {
868 if (devid == index->chipid && revid >= index->chiprev)
869 return (index);
870 index++;
871 }
872 return (NULL);
873 }
874
875 const struct ata_chip_id *
ata_find_chip(device_t dev,const struct ata_chip_id * index,int slot)876 ata_find_chip(device_t dev, const struct ata_chip_id *index, int slot)
877 {
878 const struct ata_chip_id *idx;
879 device_t *children;
880 int nchildren, i;
881 uint8_t s;
882
883 if (device_get_children(device_get_parent(dev), &children, &nchildren))
884 return (NULL);
885
886 for (i = 0; i < nchildren; i++) {
887 s = pci_get_slot(children[i]);
888 if ((slot >= 0 && s == slot) || (slot < 0 && s <= -slot)) {
889 idx = ata_match_chip(children[i], index);
890 if (idx != NULL) {
891 free(children, M_TEMP);
892 return (idx);
893 }
894 }
895 }
896 free(children, M_TEMP);
897 return (NULL);
898 }
899
900 const char *
ata_pcivendor2str(device_t dev)901 ata_pcivendor2str(device_t dev)
902 {
903 switch (pci_get_vendor(dev)) {
904 case ATA_ACARD_ID: return "Acard";
905 case ATA_ACER_LABS_ID: return "AcerLabs";
906 case ATA_AMD_ID: return "AMD";
907 case ATA_ADAPTEC_ID: return "Adaptec";
908 case ATA_ATI_ID: return "ATI";
909 case ATA_CYRIX_ID: return "Cyrix";
910 case ATA_CYPRESS_ID: return "Cypress";
911 case ATA_HIGHPOINT_ID: return "HighPoint";
912 case ATA_INTEL_ID: return "Intel";
913 case ATA_ITE_ID: return "ITE";
914 case ATA_JMICRON_ID: return "JMicron";
915 case ATA_MARVELL_ID: return "Marvell";
916 case ATA_MARVELL2_ID: return "Marvell";
917 case ATA_NATIONAL_ID: return "National";
918 case ATA_NETCELL_ID: return "Netcell";
919 case ATA_NVIDIA_ID: return "nVidia";
920 case ATA_PROMISE_ID: return "Promise";
921 case ATA_SERVERWORKS_ID: return "ServerWorks";
922 case ATA_SILICON_IMAGE_ID: return "SiI";
923 case ATA_SIS_ID: return "SiS";
924 case ATA_VIA_ID: return "VIA";
925 case ATA_CENATEK_ID: return "Cenatek";
926 case ATA_MICRON_ID: return "Micron";
927 default: return "Generic";
928 }
929 }
930
931 int
ata_mode2idx(int mode)932 ata_mode2idx(int mode)
933 {
934 if ((mode & ATA_DMA_MASK) == ATA_UDMA0)
935 return (mode & ATA_MODE_MASK) + 8;
936 if ((mode & ATA_DMA_MASK) == ATA_WDMA0)
937 return (mode & ATA_MODE_MASK) + 5;
938 return (mode & ATA_MODE_MASK) - ATA_PIO0;
939 }
940