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