1 /*-
2 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/module.h>
34 #include <sys/ata.h>
35 #include <sys/bus.h>
36 #include <sys/conf.h>
37 #include <sys/malloc.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 return ENXIO;
114
115 /* attach all channels on this controller */
116 for (unit = 0; unit < ctlr->channels; unit++) {
117 if ((ctlr->ichannels & (1 << unit)) == 0)
118 continue;
119 child = device_add_child(dev, "ata",
120 ((unit == 0 || unit == 1) && ctlr->legacy) ?
121 unit : devclass_find_free_unit(ata_devclass, 2));
122 if (child == NULL)
123 device_printf(dev, "failed to add ata child device\n");
124 else
125 device_set_ivars(child, (void *)(intptr_t)unit);
126 }
127 bus_generic_attach(dev);
128 return 0;
129 }
130
131 int
ata_pci_detach(device_t dev)132 ata_pci_detach(device_t dev)
133 {
134 struct ata_pci_controller *ctlr = device_get_softc(dev);
135
136 /* detach & delete all children */
137 device_delete_children(dev);
138
139 if (ctlr->r_irq) {
140 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle);
141 bus_release_resource(dev, SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq);
142 if (ctlr->r_irq_rid != ATA_IRQ_RID)
143 pci_release_msi(dev);
144 }
145 if (ctlr->chipdeinit != NULL)
146 ctlr->chipdeinit(dev);
147 if (ctlr->r_res2) {
148 #ifdef __sparc64__
149 bus_space_unmap(rman_get_bustag(ctlr->r_res2),
150 rman_get_bushandle(ctlr->r_res2), rman_get_size(ctlr->r_res2));
151 #endif
152 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
153 }
154 if (ctlr->r_res1) {
155 #ifdef __sparc64__
156 bus_space_unmap(rman_get_bustag(ctlr->r_res1),
157 rman_get_bushandle(ctlr->r_res1), rman_get_size(ctlr->r_res1));
158 #endif
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,int type,int rid,struct resource * r)280 ata_pci_release_resource(device_t dev, device_t child, int type, int rid,
281 struct resource *r)
282 {
283
284 if (device_get_devclass(child) == ata_devclass) {
285 struct ata_pci_controller *controller = device_get_softc(dev);
286 int unit = ((struct ata_channel *)device_get_softc(child))->unit;
287
288 if (type == SYS_RES_IOPORT) {
289 switch (rid) {
290 case ATA_IOADDR_RID:
291 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev,
292 SYS_RES_IOPORT,
293 PCIR_BAR(0) + (unit << 3), r);
294 case ATA_CTLADDR_RID:
295 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev,
296 SYS_RES_IOPORT,
297 PCIR_BAR(1) + (unit << 3), r);
298 default:
299 return ENOENT;
300 }
301 }
302 if (type == SYS_RES_IRQ) {
303 if (rid != ATA_IRQ_RID)
304 return ENOENT;
305 if (controller->legacy) {
306 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
307 SYS_RES_IRQ, rid, r);
308 } else
309 return 0;
310 }
311 } else {
312 if (type == SYS_RES_IRQ) {
313 if (rid != ATA_IRQ_RID)
314 return (ENOENT);
315 return (0);
316 } else {
317 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
318 type, rid, r));
319 }
320 }
321 return (EINVAL);
322 }
323
324 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)325 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq,
326 int flags, driver_filter_t *filter, driver_intr_t *function,
327 void *argument, void **cookiep)
328 {
329 struct ata_pci_controller *controller = device_get_softc(dev);
330
331 if (controller->legacy) {
332 return BUS_SETUP_INTR(device_get_parent(dev), child, irq,
333 flags, filter, function, argument, cookiep);
334 } else {
335 struct ata_pci_controller *controller = device_get_softc(dev);
336 int unit;
337
338 if (filter != NULL) {
339 printf("ata-pci.c: we cannot use a filter here\n");
340 return (EINVAL);
341 }
342 if (device_get_devclass(child) == ata_devclass)
343 unit = ((struct ata_channel *)device_get_softc(child))->unit;
344 else
345 unit = ATA_PCI_MAX_CH - 1;
346 controller->interrupt[unit].function = function;
347 controller->interrupt[unit].argument = argument;
348 *cookiep = controller;
349 return 0;
350 }
351 }
352
353 int
ata_pci_teardown_intr(device_t dev,device_t child,struct resource * irq,void * cookie)354 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq,
355 void *cookie)
356 {
357 struct ata_pci_controller *controller = device_get_softc(dev);
358
359 if (controller->legacy) {
360 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie);
361 } else {
362 struct ata_pci_controller *controller = device_get_softc(dev);
363 int unit;
364
365 if (device_get_devclass(child) == ata_devclass)
366 unit = ((struct ata_channel *)device_get_softc(child))->unit;
367 else
368 unit = ATA_PCI_MAX_CH - 1;
369 controller->interrupt[unit].function = NULL;
370 controller->interrupt[unit].argument = NULL;
371 return 0;
372 }
373 }
374
375 int
ata_generic_setmode(device_t dev,int target,int mode)376 ata_generic_setmode(device_t dev, int target, int mode)
377 {
378
379 return (min(mode, ATA_UDMA2));
380 }
381
382 int
ata_generic_chipinit(device_t dev)383 ata_generic_chipinit(device_t dev)
384 {
385 struct ata_pci_controller *ctlr = device_get_softc(dev);
386
387 if (ata_setup_interrupt(dev, ata_generic_intr))
388 return ENXIO;
389 ctlr->setmode = ata_generic_setmode;
390 return 0;
391 }
392
393 int
ata_pci_ch_attach(device_t dev)394 ata_pci_ch_attach(device_t dev)
395 {
396 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
397 struct ata_channel *ch = device_get_softc(dev);
398 struct resource *io = NULL, *ctlio = NULL;
399 int i, rid;
400
401 rid = ATA_IOADDR_RID;
402 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE)))
403 return ENXIO;
404
405 rid = ATA_CTLADDR_RID;
406 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){
407 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
408 return ENXIO;
409 }
410
411 ata_pci_dmainit(dev);
412
413 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
414 ch->r_io[i].res = io;
415 ch->r_io[i].offset = i;
416 }
417 ch->r_io[ATA_CONTROL].res = ctlio;
418 ch->r_io[ATA_CONTROL].offset = ctlr->legacy ? 0 : 2;
419 ch->r_io[ATA_IDX_ADDR].res = io;
420 ata_default_registers(dev);
421 if (ctlr->r_res1) {
422 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
423 ch->r_io[i].res = ctlr->r_res1;
424 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE);
425 }
426 }
427
428 ata_pci_hw(dev);
429 return 0;
430 }
431
432 int
ata_pci_ch_detach(device_t dev)433 ata_pci_ch_detach(device_t dev)
434 {
435 struct ata_channel *ch = device_get_softc(dev);
436
437 ata_pci_dmafini(dev);
438
439 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID,
440 ch->r_io[ATA_CONTROL].res);
441 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID,
442 ch->r_io[ATA_IDX_ADDR].res);
443
444 return (0);
445 }
446
447 int
ata_pci_status(device_t dev)448 ata_pci_status(device_t dev)
449 {
450 struct ata_pci_controller *controller =
451 device_get_softc(device_get_parent(dev));
452 struct ata_channel *ch = device_get_softc(dev);
453
454 if ((dumping || !controller->legacy) &&
455 ((ch->flags & ATA_ALWAYS_DMASTAT) ||
456 (ch->dma.flags & ATA_DMA_ACTIVE))) {
457 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
458
459 if ((bmstat & ATA_BMSTAT_INTERRUPT) == 0)
460 return 0;
461 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR);
462 DELAY(1);
463 }
464 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) {
465 DELAY(100);
466 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY)
467 return 0;
468 }
469 return 1;
470 }
471
472 void
ata_pci_hw(device_t dev)473 ata_pci_hw(device_t dev)
474 {
475 struct ata_channel *ch = device_get_softc(dev);
476
477 ata_generic_hw(dev);
478 ch->hw.status = ata_pci_status;
479 }
480
481 static int
ata_pci_dmastart(struct ata_request * request)482 ata_pci_dmastart(struct ata_request *request)
483 {
484 struct ata_channel *ch = device_get_softc(request->parent);
485
486 ATA_DEBUG_RQ(request, "dmastart");
487
488 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
489 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
490 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
491 ch->dma.flags |= ATA_DMA_ACTIVE;
492 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
493 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) |
494 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)|
495 ATA_BMCMD_START_STOP);
496 return 0;
497 }
498
499 static int
ata_pci_dmastop(struct ata_request * request)500 ata_pci_dmastop(struct ata_request *request)
501 {
502 struct ata_channel *ch = device_get_softc(request->parent);
503 int error;
504
505 ATA_DEBUG_RQ(request, "dmastop");
506
507 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
508 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
509 ch->dma.flags &= ~ATA_DMA_ACTIVE;
510 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
511 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
512 return error;
513 }
514
515 static void
ata_pci_dmareset(device_t dev)516 ata_pci_dmareset(device_t dev)
517 {
518 struct ata_channel *ch = device_get_softc(dev);
519 struct ata_request *request;
520
521 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
522 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
523 ch->dma.flags &= ~ATA_DMA_ACTIVE;
524 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
525 if ((request = ch->running)) {
526 device_printf(dev, "DMA reset calling unload\n");
527 ch->dma.unload(request);
528 }
529 }
530
531 void
ata_pci_dmainit(device_t dev)532 ata_pci_dmainit(device_t dev)
533 {
534 struct ata_channel *ch = device_get_softc(dev);
535
536 ata_dmainit(dev);
537 ch->dma.start = ata_pci_dmastart;
538 ch->dma.stop = ata_pci_dmastop;
539 ch->dma.reset = ata_pci_dmareset;
540 }
541
542 void
ata_pci_dmafini(device_t dev)543 ata_pci_dmafini(device_t dev)
544 {
545
546 ata_dmafini(dev);
547 }
548
549 int
ata_pci_print_child(device_t dev,device_t child)550 ata_pci_print_child(device_t dev, device_t child)
551 {
552 int retval;
553
554 retval = bus_print_child_header(dev, child);
555 retval += printf(" at channel %d",
556 (int)(intptr_t)device_get_ivars(child));
557 retval += bus_print_child_footer(dev, child);
558
559 return (retval);
560 }
561
562 int
ata_pci_child_location_str(device_t dev,device_t child,char * buf,size_t buflen)563 ata_pci_child_location_str(device_t dev, device_t child, char *buf,
564 size_t buflen)
565 {
566
567 snprintf(buf, buflen, "channel=%d",
568 (int)(intptr_t)device_get_ivars(child));
569 return (0);
570 }
571
572 static bus_dma_tag_t
ata_pci_get_dma_tag(device_t bus,device_t child)573 ata_pci_get_dma_tag(device_t bus, device_t child)
574 {
575
576 return (bus_get_dma_tag(bus));
577 }
578
579 static device_method_t ata_pci_methods[] = {
580 /* device interface */
581 DEVMETHOD(device_probe, ata_pci_probe),
582 DEVMETHOD(device_attach, ata_pci_attach),
583 DEVMETHOD(device_detach, ata_pci_detach),
584 DEVMETHOD(device_suspend, ata_pci_suspend),
585 DEVMETHOD(device_resume, ata_pci_resume),
586 DEVMETHOD(device_shutdown, bus_generic_shutdown),
587
588 /* bus methods */
589 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar),
590 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar),
591 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource),
592 DEVMETHOD(bus_release_resource, ata_pci_release_resource),
593 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
594 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
595 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr),
596 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr),
597 DEVMETHOD(pci_read_config, ata_pci_read_config),
598 DEVMETHOD(pci_write_config, ata_pci_write_config),
599 DEVMETHOD(bus_print_child, ata_pci_print_child),
600 DEVMETHOD(bus_child_location_str, ata_pci_child_location_str),
601 DEVMETHOD(bus_get_dma_tag, ata_pci_get_dma_tag),
602
603 DEVMETHOD_END
604 };
605
606 devclass_t ata_pci_devclass;
607
608 static driver_t ata_pci_driver = {
609 "atapci",
610 ata_pci_methods,
611 sizeof(struct ata_pci_controller),
612 };
613
614 DRIVER_MODULE(atapci, pci, ata_pci_driver, ata_pci_devclass, NULL, NULL);
615 MODULE_VERSION(atapci, 1);
616 MODULE_DEPEND(atapci, ata, 1, 1, 1);
617
618 static int
ata_pcichannel_probe(device_t dev)619 ata_pcichannel_probe(device_t dev)
620 {
621
622 if ((intptr_t)device_get_ivars(dev) < 0)
623 return (ENXIO);
624 device_set_desc(dev, "ATA channel");
625
626 return ata_probe(dev);
627 }
628
629 static int
ata_pcichannel_attach(device_t dev)630 ata_pcichannel_attach(device_t dev)
631 {
632 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
633 struct ata_channel *ch = device_get_softc(dev);
634 int error;
635
636 if (ch->attached)
637 return (0);
638 ch->attached = 1;
639
640 ch->dev = dev;
641 ch->unit = (intptr_t)device_get_ivars(dev);
642
643 resource_int_value(device_get_name(dev),
644 device_get_unit(dev), "pm_level", &ch->pm_level);
645
646 if ((error = ctlr->ch_attach(dev)))
647 return error;
648
649 return ata_attach(dev);
650 }
651
652 static int
ata_pcichannel_detach(device_t dev)653 ata_pcichannel_detach(device_t dev)
654 {
655 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
656 struct ata_channel *ch = device_get_softc(dev);
657 int error;
658
659 if (!ch->attached)
660 return (0);
661 ch->attached = 0;
662
663 if ((error = ata_detach(dev)))
664 return error;
665
666 if (ctlr->ch_detach)
667 return (ctlr->ch_detach(dev));
668
669 return (0);
670 }
671 static int
ata_pcichannel_suspend(device_t dev)672 ata_pcichannel_suspend(device_t dev)
673 {
674 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
675 struct ata_channel *ch = device_get_softc(dev);
676 int error;
677
678 if (!ch->attached)
679 return (0);
680
681 if ((error = ata_suspend(dev)))
682 return (error);
683
684 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev)))
685 return (error);
686
687 return (0);
688 }
689
690 static int
ata_pcichannel_resume(device_t dev)691 ata_pcichannel_resume(device_t dev)
692 {
693 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
694 struct ata_channel *ch = device_get_softc(dev);
695 int error;
696
697 if (!ch->attached)
698 return (0);
699
700 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev)))
701 return (error);
702
703 return ata_resume(dev);
704 }
705
706 static void
ata_pcichannel_reset(device_t dev)707 ata_pcichannel_reset(device_t dev)
708 {
709 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
710 struct ata_channel *ch = device_get_softc(dev);
711
712 /* if DMA engine present reset it */
713 if (ch->dma.reset)
714 ch->dma.reset(dev);
715
716 /* reset the controller HW */
717 if (ctlr->reset)
718 ctlr->reset(dev);
719 else
720 ata_generic_reset(dev);
721 }
722
723 static int
ata_pcichannel_setmode(device_t dev,int target,int mode)724 ata_pcichannel_setmode(device_t dev, int target, int mode)
725 {
726 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
727
728 if (ctlr->setmode)
729 return (ctlr->setmode(dev, target, mode));
730 else
731 return (ata_generic_setmode(dev, target, mode));
732 }
733
734 static int
ata_pcichannel_getrev(device_t dev,int target)735 ata_pcichannel_getrev(device_t dev, int target)
736 {
737 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
738 struct ata_channel *ch = device_get_softc(dev);
739
740 if (ch->flags & ATA_SATA) {
741 if (ctlr->getrev)
742 return (ctlr->getrev(dev, target));
743 else
744 return (0xff);
745 } else
746 return (0);
747 }
748
749 static device_method_t ata_pcichannel_methods[] = {
750 /* device interface */
751 DEVMETHOD(device_probe, ata_pcichannel_probe),
752 DEVMETHOD(device_attach, ata_pcichannel_attach),
753 DEVMETHOD(device_detach, ata_pcichannel_detach),
754 DEVMETHOD(device_shutdown, bus_generic_shutdown),
755 DEVMETHOD(device_suspend, ata_pcichannel_suspend),
756 DEVMETHOD(device_resume, ata_pcichannel_resume),
757
758 /* ATA methods */
759 DEVMETHOD(ata_setmode, ata_pcichannel_setmode),
760 DEVMETHOD(ata_getrev, ata_pcichannel_getrev),
761 DEVMETHOD(ata_reset, ata_pcichannel_reset),
762
763 DEVMETHOD_END
764 };
765
766 driver_t ata_pcichannel_driver = {
767 "ata",
768 ata_pcichannel_methods,
769 sizeof(struct ata_channel),
770 };
771
772 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, NULL, NULL);
773
774 /*
775 * misc support fucntions
776 */
777 int
ata_legacy(device_t dev)778 ata_legacy(device_t dev)
779 {
780 return (((pci_read_config(dev, PCIR_SUBCLASS, 1) == PCIS_STORAGE_IDE) &&
781 (pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&&
782 ((pci_read_config(dev, PCIR_PROGIF, 1) &
783 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) !=
784 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) ||
785 (!pci_read_config(dev, PCIR_BAR(0), 4) &&
786 !pci_read_config(dev, PCIR_BAR(1), 4) &&
787 !pci_read_config(dev, PCIR_BAR(2), 4) &&
788 !pci_read_config(dev, PCIR_BAR(3), 4) &&
789 !pci_read_config(dev, PCIR_BAR(5), 4)));
790 }
791
792 void
ata_generic_intr(void * data)793 ata_generic_intr(void *data)
794 {
795 struct ata_pci_controller *ctlr = data;
796 struct ata_channel *ch;
797 int unit;
798
799 for (unit = 0; unit < ATA_PCI_MAX_CH; unit++) {
800 if ((ch = ctlr->interrupt[unit].argument))
801 ctlr->interrupt[unit].function(ch);
802 }
803 }
804
805 int
ata_setup_interrupt(device_t dev,void * intr_func)806 ata_setup_interrupt(device_t dev, void *intr_func)
807 {
808 struct ata_pci_controller *ctlr = device_get_softc(dev);
809 int i, msi = 0;
810
811 if (!ctlr->legacy) {
812 if (resource_int_value(device_get_name(dev),
813 device_get_unit(dev), "msi", &i) == 0 && i != 0)
814 msi = 1;
815 if (msi && pci_msi_count(dev) > 0 && pci_alloc_msi(dev, &msi) == 0) {
816 ctlr->r_irq_rid = 0x1;
817 } else {
818 msi = 0;
819 ctlr->r_irq_rid = ATA_IRQ_RID;
820 }
821 if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
822 &ctlr->r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) {
823 device_printf(dev, "unable to map interrupt\n");
824 if (msi)
825 pci_release_msi(dev);
826 return ENXIO;
827 }
828 if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
829 intr_func, ctlr, &ctlr->handle))) {
830 device_printf(dev, "unable to setup interrupt\n");
831 bus_release_resource(dev,
832 SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq);
833 if (msi)
834 pci_release_msi(dev);
835 return ENXIO;
836 }
837 }
838 return 0;
839 }
840
841 void
ata_set_desc(device_t dev)842 ata_set_desc(device_t dev)
843 {
844 struct ata_pci_controller *ctlr = device_get_softc(dev);
845 char buffer[128];
846
847 sprintf(buffer, "%s %s %s controller",
848 ata_pcivendor2str(dev), ctlr->chip->text,
849 ata_mode2str(ctlr->chip->max_dma));
850 device_set_desc_copy(dev, buffer);
851 }
852
853 const struct ata_chip_id *
ata_match_chip(device_t dev,const struct ata_chip_id * index)854 ata_match_chip(device_t dev, const struct ata_chip_id *index)
855 {
856 uint32_t devid;
857 uint8_t revid;
858
859 devid = pci_get_devid(dev);
860 revid = pci_get_revid(dev);
861 while (index->chipid != 0) {
862 if (devid == index->chipid && revid >= index->chiprev)
863 return (index);
864 index++;
865 }
866 return (NULL);
867 }
868
869 const struct ata_chip_id *
ata_find_chip(device_t dev,const struct ata_chip_id * index,int slot)870 ata_find_chip(device_t dev, const struct ata_chip_id *index, int slot)
871 {
872 const struct ata_chip_id *idx;
873 device_t *children;
874 int nchildren, i;
875 uint8_t s;
876
877 if (device_get_children(device_get_parent(dev), &children, &nchildren))
878 return (NULL);
879
880 for (i = 0; i < nchildren; i++) {
881 s = pci_get_slot(children[i]);
882 if ((slot >= 0 && s == slot) || (slot < 0 && s <= -slot)) {
883 idx = ata_match_chip(children[i], index);
884 if (idx != NULL) {
885 free(children, M_TEMP);
886 return (idx);
887 }
888 }
889 }
890 free(children, M_TEMP);
891 return (NULL);
892 }
893
894 const char *
ata_pcivendor2str(device_t dev)895 ata_pcivendor2str(device_t dev)
896 {
897 switch (pci_get_vendor(dev)) {
898 case ATA_ACARD_ID: return "Acard";
899 case ATA_ACER_LABS_ID: return "AcerLabs";
900 case ATA_AMD_ID: return "AMD";
901 case ATA_ADAPTEC_ID: return "Adaptec";
902 case ATA_ATI_ID: return "ATI";
903 case ATA_CYRIX_ID: return "Cyrix";
904 case ATA_CYPRESS_ID: return "Cypress";
905 case ATA_HIGHPOINT_ID: return "HighPoint";
906 case ATA_INTEL_ID: return "Intel";
907 case ATA_ITE_ID: return "ITE";
908 case ATA_JMICRON_ID: return "JMicron";
909 case ATA_MARVELL_ID: return "Marvell";
910 case ATA_MARVELL2_ID: return "Marvell";
911 case ATA_NATIONAL_ID: return "National";
912 case ATA_NETCELL_ID: return "Netcell";
913 case ATA_NVIDIA_ID: return "nVidia";
914 case ATA_PROMISE_ID: return "Promise";
915 case ATA_SERVERWORKS_ID: return "ServerWorks";
916 case ATA_SILICON_IMAGE_ID: return "SiI";
917 case ATA_SIS_ID: return "SiS";
918 case ATA_VIA_ID: return "VIA";
919 case ATA_CENATEK_ID: return "Cenatek";
920 case ATA_MICRON_ID: return "Micron";
921 default: return "Generic";
922 }
923 }
924
925 int
ata_mode2idx(int mode)926 ata_mode2idx(int mode)
927 {
928 if ((mode & ATA_DMA_MASK) == ATA_UDMA0)
929 return (mode & ATA_MODE_MASK) + 8;
930 if ((mode & ATA_DMA_MASK) == ATA_WDMA0)
931 return (mode & ATA_MODE_MASK) + 5;
932 return (mode & ATA_MODE_MASK) - ATA_PIO0;
933 }
934