xref: /dragonfly/sys/dev/disk/nata/ata-chipset.c (revision 51f35c5c)
1 /*-
2  * Copyright (c) 1998 - 2006 S�ren 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  * $FreeBSD: src/sys/dev/ata/ata-chipset.c,v 1.196 2007/04/08 19:18:51 sos Exp $
27  * $DragonFly: src/sys/dev/disk/nata/ata-chipset.c,v 1.14 2008/04/05 20:13:04 dillon Exp $
28  */
29 
30 #include "opt_ata.h"
31 
32 #include <sys/param.h>
33 #include <sys/bus.h>
34 #include <sys/bus_dma.h>
35 #include <sys/bus_resource.h>
36 #include <sys/callout.h>
37 #include <sys/endian.h>
38 #include <sys/libkern.h>
39 #include <sys/lock.h>		/* for {get,rel}_mplock() */
40 #include <sys/malloc.h>
41 #include <sys/nata.h>
42 #include <sys/queue.h>
43 #include <sys/rman.h>
44 #include <sys/spinlock.h>
45 #include <sys/spinlock2.h>
46 #include <sys/systm.h>
47 #include <sys/taskqueue.h>
48 
49 #include <machine/bus_dma.h>
50 
51 #include <bus/pci/pcireg.h>
52 #include <bus/pci/pcivar.h>
53 
54 #include "ata-all.h"
55 #include "ata-pci.h"
56 #include "ata_if.h"
57 
58 /* local prototypes */
59 /* ata-chipset.c */
60 static int ata_generic_chipinit(device_t dev);
61 static void ata_generic_intr(void *data);
62 static void ata_generic_setmode(device_t dev, int mode);
63 static void ata_sata_phy_check_events(device_t dev);
64 static void ata_sata_phy_event(void *context, int dummy);
65 static int ata_sata_phy_reset(device_t dev);
66 static int ata_sata_connect(struct ata_channel *ch);
67 static void ata_sata_setmode(device_t dev, int mode);
68 static int ata_request2fis_h2d(struct ata_request *request, u_int8_t *fis);
69 static int ata_ahci_chipinit(device_t dev);
70 static int ata_ahci_allocate(device_t dev);
71 static int ata_ahci_status(device_t dev);
72 static int ata_ahci_begin_transaction(struct ata_request *request);
73 static int ata_ahci_end_transaction(struct ata_request *request);
74 static void ata_ahci_reset(device_t dev);
75 static void ata_ahci_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
76 static void ata_ahci_dmainit(device_t dev);
77 static int ata_ahci_setup_fis(struct ata_ahci_cmd_tab *ctp, struct ata_request *request);
78 static int ata_acard_chipinit(device_t dev);
79 static int ata_acard_allocate(device_t dev);
80 static int ata_acard_status(device_t dev);
81 static void ata_acard_850_setmode(device_t dev, int mode);
82 static void ata_acard_86X_setmode(device_t dev, int mode);
83 static int ata_ali_chipinit(device_t dev);
84 static int ata_ali_allocate(device_t dev);
85 static int ata_ali_sata_allocate(device_t dev);
86 static void ata_ali_reset(device_t dev);
87 static void ata_ali_setmode(device_t dev, int mode);
88 static int ata_amd_chipinit(device_t dev);
89 static int ata_ati_chipinit(device_t dev);
90 static void ata_ati_setmode(device_t dev, int mode);
91 static int ata_cyrix_chipinit(device_t dev);
92 static void ata_cyrix_setmode(device_t dev, int mode);
93 static int ata_cypress_chipinit(device_t dev);
94 static void ata_cypress_setmode(device_t dev, int mode);
95 static int ata_highpoint_chipinit(device_t dev);
96 static int ata_highpoint_allocate(device_t dev);
97 static void ata_highpoint_setmode(device_t dev, int mode);
98 static int ata_highpoint_check_80pin(device_t dev, int mode);
99 static int ata_intel_chipinit(device_t dev);
100 static int ata_intel_allocate(device_t dev);
101 static void ata_intel_reset(device_t dev);
102 static void ata_intel_old_setmode(device_t dev, int mode);
103 static void ata_intel_new_setmode(device_t dev, int mode);
104 static int ata_intel_31244_allocate(device_t dev);
105 static int ata_intel_31244_status(device_t dev);
106 static int ata_intel_31244_command(struct ata_request *request);
107 static void ata_intel_31244_reset(device_t dev);
108 static int ata_ite_chipinit(device_t dev);
109 static void ata_ite_setmode(device_t dev, int mode);
110 static int ata_jmicron_chipinit(device_t dev);
111 static int ata_jmicron_allocate(device_t dev);
112 static void ata_jmicron_reset(device_t dev);
113 static void ata_jmicron_dmainit(device_t dev);
114 static void ata_jmicron_setmode(device_t dev, int mode);
115 static int ata_marvell_pata_chipinit(device_t dev);
116 static int ata_marvell_pata_allocate(device_t dev);
117 static void ata_marvell_pata_setmode(device_t dev, int mode);
118 static int ata_marvell_edma_chipinit(device_t dev);
119 static int ata_marvell_edma_allocate(device_t dev);
120 static int ata_marvell_edma_status(device_t dev);
121 static int ata_marvell_edma_begin_transaction(struct ata_request *request);
122 static int ata_marvell_edma_end_transaction(struct ata_request *request);
123 static void ata_marvell_edma_reset(device_t dev);
124 static void ata_marvell_edma_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
125 static void ata_marvell_edma_dmainit(device_t dev);
126 static int ata_national_chipinit(device_t dev);
127 static void ata_national_setmode(device_t dev, int mode);
128 static int ata_netcell_chipinit(device_t dev);
129 static int ata_netcell_allocate(device_t dev);
130 static int ata_nvidia_chipinit(device_t dev);
131 static int ata_nvidia_allocate(device_t dev);
132 static int ata_nvidia_status(device_t dev);
133 static void ata_nvidia_reset(device_t dev);
134 static int ata_promise_chipinit(device_t dev);
135 static int ata_promise_allocate(device_t dev);
136 static int ata_promise_status(device_t dev);
137 static int ata_promise_dmastart(device_t dev);
138 static int ata_promise_dmastop(device_t dev);
139 static void ata_promise_dmareset(device_t dev);
140 static void ata_promise_dmainit(device_t dev);
141 static void ata_promise_setmode(device_t dev, int mode);
142 static int ata_promise_tx2_allocate(device_t dev);
143 static int ata_promise_tx2_status(device_t dev);
144 static int ata_promise_mio_allocate(device_t dev);
145 static void ata_promise_mio_intr(void *data);
146 static int ata_promise_mio_status(device_t dev);
147 static int ata_promise_mio_command(struct ata_request *request);
148 static void ata_promise_mio_reset(device_t dev);
149 static void ata_promise_mio_dmainit(device_t dev);
150 static void ata_promise_mio_setmode(device_t dev, int mode);
151 static void ata_promise_sx4_intr(void *data);
152 static int ata_promise_sx4_command(struct ata_request *request);
153 static int ata_promise_apkt(u_int8_t *bytep, struct ata_request *request);
154 static void ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt);
155 static void ata_promise_next_hpkt(struct ata_pci_controller *ctlr);
156 static int ata_serverworks_chipinit(device_t dev);
157 static int ata_serverworks_allocate(device_t dev);
158 static void ata_serverworks_setmode(device_t dev, int mode);
159 static int ata_sii_chipinit(device_t dev);
160 static int ata_cmd_allocate(device_t dev);
161 static int ata_cmd_status(device_t dev);
162 static void ata_cmd_setmode(device_t dev, int mode);
163 static int ata_sii_allocate(device_t dev);
164 static int ata_sii_status(device_t dev);
165 static void ata_sii_reset(device_t dev);
166 static void ata_sii_setmode(device_t dev, int mode);
167 static int ata_siiprb_allocate(device_t dev);
168 static int ata_siiprb_status(device_t dev);
169 static int ata_siiprb_begin_transaction(struct ata_request *request);
170 static int ata_siiprb_end_transaction(struct ata_request *request);
171 static void ata_siiprb_reset(device_t dev);
172 static void ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
173 static void ata_siiprb_dmainit(device_t dev);
174 static int ata_sis_chipinit(device_t dev);
175 static int ata_sis_allocate(device_t dev);
176 static void ata_sis_reset(device_t dev);
177 static void ata_sis_setmode(device_t dev, int mode);
178 static int ata_via_chipinit(device_t dev);
179 static int ata_via_allocate(device_t dev);
180 static void ata_via_reset(device_t dev);
181 static void ata_via_setmode(device_t dev, int mode);
182 static void ata_via_southbridge_fixup(device_t dev);
183 static void ata_via_family_setmode(device_t dev, int mode);
184 static struct ata_chip_id *ata_match_chip(device_t dev, struct ata_chip_id *index);
185 static struct ata_chip_id *ata_find_chip(device_t dev, struct ata_chip_id *index, int slot);
186 static int ata_setup_interrupt(device_t dev);
187 static int ata_serialize(device_t dev, int flags);
188 static void ata_print_cable(device_t dev, u_int8_t *who);
189 static int ata_atapi(device_t dev);
190 static int ata_check_80pin(device_t dev, int mode);
191 static int ata_mode2idx(int mode);
192 
193 
194 /*
195  * generic ATA support functions
196  */
197 int
198 ata_generic_ident(device_t dev)
199 {
200     struct ata_pci_controller *ctlr = device_get_softc(dev);
201     char buffer[64];
202 
203     ksnprintf(buffer, sizeof(buffer),
204 	      "%s ATA controller", ata_pcivendor2str(dev));
205     device_set_desc_copy(dev, buffer);
206     ctlr->chipinit = ata_generic_chipinit;
207     return 0;
208 }
209 
210 static int
211 ata_generic_chipinit(device_t dev)
212 {
213     struct ata_pci_controller *ctlr = device_get_softc(dev);
214 
215     if (ata_setup_interrupt(dev))
216 	return ENXIO;
217     ctlr->setmode = ata_generic_setmode;
218     return 0;
219 }
220 
221 static void
222 ata_generic_intr(void *data)
223 {
224     struct ata_pci_controller *ctlr = data;
225     struct ata_channel *ch;
226     int unit;
227 
228     for (unit = 0; unit < ctlr->channels; unit++) {
229 	if ((ch = ctlr->interrupt[unit].argument))
230 	    ctlr->interrupt[unit].function(ch);
231     }
232 }
233 
234 static void
235 ata_generic_setmode(device_t dev, int mode)
236 {
237     struct ata_device *atadev = device_get_softc(dev);
238 
239     mode = ata_limit_mode(dev, mode, ATA_UDMA2);
240     mode = ata_check_80pin(dev, mode);
241     if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
242 	atadev->mode = mode;
243 }
244 
245 
246 /*
247  * SATA support functions
248  */
249 static void
250 ata_sata_phy_check_events(device_t dev)
251 {
252     struct ata_channel *ch = device_get_softc(dev);
253     u_int32_t error = ATA_IDX_INL(ch, ATA_SERROR);
254 
255     /* clear error bits/interrupt */
256     ATA_IDX_OUTL(ch, ATA_SERROR, error);
257 
258     /* do we have any events flagged ? */
259     if (error) {
260 	struct ata_connect_task *tp;
261 	u_int32_t status = ATA_IDX_INL(ch, ATA_SSTATUS);
262 
263 	/* if we have a connection event deal with it */
264 	if ((error & ATA_SE_PHY_CHANGED) &&
265 	    (tp = (struct ata_connect_task *)
266 		  kmalloc(sizeof(struct ata_connect_task),
267 			 M_ATA, M_INTWAIT | M_ZERO))) {
268 
269 	    if (((status & ATA_SS_CONWELL_MASK) == ATA_SS_CONWELL_GEN1) ||
270 		((status & ATA_SS_CONWELL_MASK) == ATA_SS_CONWELL_GEN2)) {
271 		if (bootverbose)
272 		    device_printf(ch->dev, "CONNECT requested\n");
273 		tp->action = ATA_C_ATTACH;
274 	    }
275 	    else {
276 		if (bootverbose)
277 		    device_printf(ch->dev, "DISCONNECT requested\n");
278 		tp->action = ATA_C_DETACH;
279 	    }
280 	    tp->dev = ch->dev;
281 	    TASK_INIT(&tp->task, 0, ata_sata_phy_event, tp);
282 	    taskqueue_enqueue(taskqueue_thread[mycpuid], &tp->task);
283 	}
284     }
285 }
286 
287 static void
288 ata_sata_phy_event(void *context, int dummy)
289 {
290     struct ata_connect_task *tp = (struct ata_connect_task *)context;
291     struct ata_channel *ch = device_get_softc(tp->dev);
292     device_t *children;
293     int nchildren, i;
294 
295     get_mplock();
296     if (tp->action == ATA_C_ATTACH) {
297 	if (bootverbose)
298 	    device_printf(tp->dev, "CONNECTED\n");
299 	ATA_RESET(tp->dev);
300 	ata_identify(tp->dev);
301     }
302     if (tp->action == ATA_C_DETACH) {
303 	if (!device_get_children(tp->dev, &children, &nchildren)) {
304 	    for (i = 0; i < nchildren; i++)
305 		if (children[i])
306 		    device_delete_child(tp->dev, children[i]);
307 	    kfree(children, M_TEMP);
308 	}
309 	spin_lock_wr(&ch->state_mtx);
310 	ch->state = ATA_IDLE;
311 	spin_unlock_wr(&ch->state_mtx);
312 	if (bootverbose)
313 	    device_printf(tp->dev, "DISCONNECTED\n");
314     }
315     rel_mplock();
316     kfree(tp, M_ATA);
317 }
318 
319 static int
320 ata_sata_phy_reset(device_t dev)
321 {
322     struct ata_channel *ch = device_get_softc(dev);
323     int loop, retry;
324 
325     if ((ATA_IDX_INL(ch, ATA_SCONTROL) & ATA_SC_DET_MASK) == ATA_SC_DET_IDLE)
326 	return ata_sata_connect(ch);
327 
328     for (retry = 0; retry < 10; retry++) {
329 	for (loop = 0; loop < 10; loop++) {
330 	    ATA_IDX_OUTL(ch, ATA_SCONTROL, ATA_SC_DET_RESET);
331 	    ata_udelay(100);
332 	    if ((ATA_IDX_INL(ch, ATA_SCONTROL) &
333 		ATA_SC_DET_MASK) == ATA_SC_DET_RESET)
334 		break;
335 	}
336 	ata_udelay(5000);
337 	for (loop = 0; loop < 10; loop++) {
338 	    ATA_IDX_OUTL(ch, ATA_SCONTROL, ATA_SC_DET_IDLE |
339 					   ATA_SC_IPM_DIS_PARTIAL |
340 					   ATA_SC_IPM_DIS_SLUMBER);
341 	    ata_udelay(100);
342 	    if ((ATA_IDX_INL(ch, ATA_SCONTROL) & ATA_SC_DET_MASK) == 0)
343 		return ata_sata_connect(ch);
344 	}
345     }
346     return 0;
347 }
348 
349 static int
350 ata_sata_connect(struct ata_channel *ch)
351 {
352     u_int32_t status;
353     int timeout;
354 
355     /* wait up to 1 second for "connect well" */
356     for (timeout = 0; timeout < 100 ; timeout++) {
357 	status = ATA_IDX_INL(ch, ATA_SSTATUS);
358 	if ((status & ATA_SS_CONWELL_MASK) == ATA_SS_CONWELL_GEN1 ||
359 	    (status & ATA_SS_CONWELL_MASK) == ATA_SS_CONWELL_GEN2)
360 	    break;
361 	ata_udelay(10000);
362     }
363     if (timeout >= 100) {
364 	if (bootverbose)
365 	    device_printf(ch->dev, "SATA connect status=%08x\n", status);
366 	return 0;
367     }
368 
369     if (bootverbose)
370 	device_printf(ch->dev, "SATA connect time=%dms\n", timeout * 10);
371 
372     /* clear SATA error register */
373     ATA_IDX_OUTL(ch, ATA_SERROR, ATA_IDX_INL(ch, ATA_SERROR));
374 
375     return 1;
376 }
377 
378 static void
379 ata_sata_setmode(device_t dev, int mode)
380 {
381     struct ata_device *atadev = device_get_softc(dev);
382 
383     /*
384      * if we detect that the device isn't a real SATA device we limit
385      * the transfer mode to UDMA5/ATA100.
386      * this works around the problems some devices has with the
387      * Marvell 88SX8030 SATA->PATA converters and UDMA6/ATA133.
388      */
389     if (atadev->param.satacapabilities != 0x0000 &&
390 	atadev->param.satacapabilities != 0xffff) {
391 	struct ata_channel *ch = device_get_softc(device_get_parent(dev));
392 
393 	/* on some drives we need to set the transfer mode */
394 	ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0,
395 		       ata_limit_mode(dev, mode, ATA_UDMA6));
396 
397 	/* query SATA STATUS for the speed */
398         if (ch->r_io[ATA_SSTATUS].res &&
399 	   ((ATA_IDX_INL(ch, ATA_SSTATUS) & ATA_SS_CONWELL_MASK) ==
400 	    ATA_SS_CONWELL_GEN2))
401 	    atadev->mode = ATA_SA300;
402 	else
403 	    atadev->mode = ATA_SA150;
404     }
405     else {
406 	mode = ata_limit_mode(dev, mode, ATA_UDMA5);
407 	if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
408 	    atadev->mode = mode;
409     }
410 }
411 
412 static int
413 ata_request2fis_h2d(struct ata_request *request, u_int8_t *fis)
414 {
415     struct ata_device *atadev = device_get_softc(request->dev);
416 
417     if (request->flags & ATA_R_ATAPI) {
418 	fis[0] = 0x27;  /* host to device */
419 	fis[1] = 0x80;  /* command FIS (note PM goes here) */
420 	fis[2] = ATA_PACKET_CMD;
421 	if (request->flags & (ATA_R_READ | ATA_R_WRITE))
422 	    fis[3] = ATA_F_DMA;
423 	else {
424 	    fis[5] = request->transfersize;
425 	    fis[6] = request->transfersize >> 8;
426 	}
427 	fis[7] = ATA_D_LBA | atadev->unit;
428 	fis[15] = ATA_A_4BIT;
429 	return 20;
430     }
431     else {
432 	ata_modify_if_48bit(request);
433 	fis[0] = 0x27;  /* host to device */
434 	fis[1] = 0x80;  /* command FIS (note PM goes here) */
435 	fis[2] = request->u.ata.command;
436 	fis[3] = request->u.ata.feature;
437 	fis[4] = request->u.ata.lba;
438 	fis[5] = request->u.ata.lba >> 8;
439 	fis[6] = request->u.ata.lba >> 16;
440 	fis[7] = ATA_D_LBA | atadev->unit;
441 	if (!(atadev->flags & ATA_D_48BIT_ACTIVE))
442 	    fis[7] |= (request->u.ata.lba >> 24 & 0x0f);
443 	fis[8] = request->u.ata.lba >> 24;
444 	fis[9] = request->u.ata.lba >> 32;
445 	fis[10] = request->u.ata.lba >> 40;
446 	fis[11] = request->u.ata.feature >> 8;
447 	fis[12] = request->u.ata.count;
448 	fis[13] = request->u.ata.count >> 8;
449 	fis[15] = ATA_A_4BIT;
450 	return 20;
451     }
452     return 0;
453 }
454 
455 /*
456  * AHCI v1.x compliant SATA chipset support functions
457  */
458 int
459 ata_ahci_ident(device_t dev)
460 {
461     struct ata_pci_controller *ctlr = device_get_softc(dev);
462     static struct ata_chip_id id = {0, 0, 0, 0x00, ATA_SA300, "AHCI"};
463     char buffer[64];
464 
465     if (pci_read_config(dev, PCIR_PROGIF, 1) != PCIP_STORAGE_SATA_AHCI_1_0)
466 	return ENXIO;
467 
468     if (bootverbose)
469 	ksnprintf(buffer, sizeof(buffer), "%s (ID=%08x) AHCI controller",
470 		  ata_pcivendor2str(dev), pci_get_devid(dev));
471     else
472 	ksnprintf(buffer, sizeof(buffer), "%s AHCI controller",
473 		  ata_pcivendor2str(dev));
474     device_set_desc_copy(dev, buffer);
475     ctlr->chip = &id;
476     ctlr->chipinit = ata_ahci_chipinit;
477     return 0;
478 }
479 
480 
481 /*
482  * AHCI v1.x compliant SATA chipset support functions
483  */
484 int
485 ata_ahci_chipinit(device_t dev)
486 {
487     struct ata_pci_controller *ctlr = device_get_softc(dev);
488     u_int32_t version;
489     int unit;
490 
491     /* if we have a memory BAR(5) we are likely on an AHCI part */
492     ctlr->r_type2 = SYS_RES_MEMORY;
493     ctlr->r_rid2 = PCIR_BAR(5);
494     if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
495 						&ctlr->r_rid2, RF_ACTIVE)))
496 	return ENXIO;
497 
498     /* setup interrupt delivery if not done allready by a vendor driver */
499     if (!ctlr->r_irq) {
500 	if (ata_setup_interrupt(dev))
501 	    return ENXIO;
502     }
503     else
504 	device_printf(dev, "AHCI called from vendor specific driver\n");
505 
506     /* enable AHCI mode */
507     ATA_OUTL(ctlr->r_res2, ATA_AHCI_GHC, ATA_AHCI_GHC_AE);
508 
509     /* reset AHCI controller */
510     ATA_OUTL(ctlr->r_res2, ATA_AHCI_GHC, ATA_AHCI_GHC_HR);
511     DELAY(1000000);
512     if (ATA_INL(ctlr->r_res2, ATA_AHCI_GHC) & ATA_AHCI_GHC_HR) {
513 	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
514 	device_printf(dev, "AHCI controller reset failure\n");
515 	return ENXIO;
516     }
517 
518     /* reenable AHCI mode */
519     ATA_OUTL(ctlr->r_res2, ATA_AHCI_GHC, ATA_AHCI_GHC_AE);
520 
521     /* get the number of HW channels */
522     ctlr->channels =
523 	MAX(flsl(ATA_INL(ctlr->r_res2, ATA_AHCI_PI)),
524 	    (ATA_INL(ctlr->r_res2, ATA_AHCI_CAP) & ATA_AHCI_NPMASK) + 1);
525 
526     /* disable interrupt sources and clear interrupts */
527     for (unit = 0; unit < ctlr->channels; unit++) {
528 	int offset = unit << 7;
529 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IE + offset, 0);
530 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IS + offset, -1);
531     }
532     ATA_OUTL(ctlr->r_res2, ATA_AHCI_IS, ATA_INL(ctlr->r_res2, ATA_AHCI_IS));
533 
534     /* enable AHCI interrupts */
535     ATA_OUTL(ctlr->r_res2, ATA_AHCI_GHC,
536 	     ATA_INL(ctlr->r_res2, ATA_AHCI_GHC) | ATA_AHCI_GHC_IE);
537 
538     ctlr->reset = ata_ahci_reset;
539     ctlr->dmainit = ata_ahci_dmainit;
540     ctlr->allocate = ata_ahci_allocate;
541     ctlr->setmode = ata_sata_setmode;
542 
543     /* enable PCI interrupt */
544     pci_write_config(dev, PCIR_COMMAND,
545 		     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
546 
547     /* announce we support the HW */
548     version = ATA_INL(ctlr->r_res2, ATA_AHCI_VS);
549     device_printf(dev,
550 		  "AHCI Version %x%x.%x%x controller with %d ports detected\n",
551 		  (version >> 24) & 0xff, (version >> 16) & 0xff,
552 		  (version >> 8) & 0xff, version & 0xff,
553 		  (ATA_INL(ctlr->r_res2, ATA_AHCI_CAP) & ATA_AHCI_NPMASK) + 1);
554     return 0;
555 }
556 
557 static int
558 ata_ahci_allocate(device_t dev)
559 {
560     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
561     struct ata_channel *ch = device_get_softc(dev);
562     u_int64_t work;
563     int offset = ch->unit << 7;
564 
565     /* set the SATA resources */
566     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
567     ch->r_io[ATA_SSTATUS].offset = ATA_AHCI_P_SSTS + offset;
568     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
569     ch->r_io[ATA_SERROR].offset = ATA_AHCI_P_SERR + offset;
570     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
571     ch->r_io[ATA_SCONTROL].offset = ATA_AHCI_P_SCTL + offset;
572     ch->r_io[ATA_SACTIVE].res = ctlr->r_res2;
573     ch->r_io[ATA_SACTIVE].offset = ATA_AHCI_P_SACT + offset;
574 
575     ch->hw.status = ata_ahci_status;
576     ch->hw.begin_transaction = ata_ahci_begin_transaction;
577     ch->hw.end_transaction = ata_ahci_end_transaction;
578     ch->hw.command = NULL;      /* not used here */
579 
580     /* setup work areas */
581     work = ch->dma->work_bus + ATA_AHCI_CL_OFFSET;
582     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CLB + offset, work & 0xffffffff);
583     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CLBU + offset, work >> 32);
584 
585     work = ch->dma->work_bus + ATA_AHCI_FB_OFFSET;
586     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_FB + offset, work & 0xffffffff);
587     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_FBU + offset, work >> 32);
588 
589     /* enable wanted port interrupts */
590     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IE + offset,
591 	     (ATA_AHCI_P_IX_CPD | ATA_AHCI_P_IX_TFE | ATA_AHCI_P_IX_HBF |
592 	      ATA_AHCI_P_IX_HBD | ATA_AHCI_P_IX_IF | ATA_AHCI_P_IX_OF |
593 	      ATA_AHCI_P_IX_PRC | ATA_AHCI_P_IX_PC | ATA_AHCI_P_IX_DP |
594 	      ATA_AHCI_P_IX_UF | ATA_AHCI_P_IX_SDB | ATA_AHCI_P_IX_DS |
595 	      ATA_AHCI_P_IX_PS | ATA_AHCI_P_IX_DHR));
596 
597     /* start operations on this channel */
598     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
599 	     (ATA_AHCI_P_CMD_ACTIVE | ATA_AHCI_P_CMD_FRE |
600 	      ATA_AHCI_P_CMD_POD | ATA_AHCI_P_CMD_SUD | ATA_AHCI_P_CMD_ST));
601     return 0;
602 }
603 
604 static int
605 ata_ahci_status(device_t dev)
606 {
607     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
608     struct ata_channel *ch = device_get_softc(dev);
609     u_int32_t action = ATA_INL(ctlr->r_res2, ATA_AHCI_IS);
610     int offset = ch->unit << 7;
611     int tag = 0;
612 
613     if (action & (1 << ch->unit)) {
614 	u_int32_t istatus = ATA_INL(ctlr->r_res2, ATA_AHCI_P_IS + offset);
615 	u_int32_t cstatus = ATA_INL(ctlr->r_res2, ATA_AHCI_P_CI + offset);
616 
617 	/* clear interrupt(s) */
618 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_IS, action & (1 << ch->unit));
619 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IS + offset, istatus);
620 
621 	/* do we have any PHY events ? */
622 	/* XXX SOS check istatus phy bits */
623 	ata_sata_phy_check_events(dev);
624 
625 	/* do we have a potentially hanging engine to take care of? */
626 	if ((istatus & 0x78400050) && (cstatus & (1 << tag))) {
627 
628 	    u_int32_t cmd = ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset);
629 	    int timeout = 0;
630 
631 	    /* kill off all activity on this channel */
632 	    ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
633 		     cmd & ~(ATA_AHCI_P_CMD_FRE | ATA_AHCI_P_CMD_ST));
634 
635 	    /* XXX SOS this is not entirely wrong */
636 	    do {
637 		DELAY(1000);
638 		if (timeout++ > 500) {
639 		    device_printf(dev, "stopping AHCI engine failed\n");
640 		    break;
641 	        }
642 	    } while (ATA_INL(ctlr->r_res2,
643 			     ATA_AHCI_P_CMD + offset) & ATA_AHCI_P_CMD_CR);
644 
645 	    /* start operations on this channel */
646 	    ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
647 		     cmd | (ATA_AHCI_P_CMD_FRE | ATA_AHCI_P_CMD_ST));
648 
649 	    return 1;
650 	}
651 	else
652 	    return (!(cstatus & (1 << tag)));
653     }
654     return 0;
655 }
656 
657 /* must be called with ATA channel locked and state_mtx held */
658 static int
659 ata_ahci_begin_transaction(struct ata_request *request)
660 {
661     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
662     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
663     struct ata_ahci_cmd_tab *ctp;
664     struct ata_ahci_cmd_list *clp;
665     int offset = ch->unit << 7;
666     int tag = 0, entries = 0;
667     int fis_size;
668 
669     /* get a piece of the workspace for this request */
670     ctp = (struct ata_ahci_cmd_tab *)
671 	  (ch->dma->work + ATA_AHCI_CT_OFFSET + (ATA_AHCI_CT_SIZE * tag));
672 
673     /* setup the FIS for this request */
674     if (!(fis_size = ata_ahci_setup_fis(ctp, request))) {
675 	device_printf(request->dev, "setting up SATA FIS failed\n");
676 	request->result = EIO;
677 	return ATA_OP_FINISHED;
678     }
679 
680     /* if request moves data setup and load SG list */
681     if (request->flags & (ATA_R_READ | ATA_R_WRITE)) {
682 	if (ch->dma->load(ch->dev, request->data, request->bytecount,
683 			  request->flags & ATA_R_READ,
684 			  ctp->prd_tab, &entries)) {
685 	    device_printf(request->dev, "setting up DMA failed\n");
686 	    request->result = EIO;
687 	    return ATA_OP_FINISHED;
688 	}
689     }
690 
691     /* setup the command list entry */
692     clp = (struct ata_ahci_cmd_list *)
693 	  (ch->dma->work + ATA_AHCI_CL_OFFSET + (ATA_AHCI_CL_SIZE * tag));
694 
695     clp->prd_length = entries;
696     clp->cmd_flags = (request->flags & ATA_R_WRITE ? (1<<6) : 0) |
697 		     (request->flags & ATA_R_ATAPI ? ((1<<5) | (1<<7)) : 0) |
698 		     (fis_size / sizeof(u_int32_t));
699     clp->bytecount = 0;
700     clp->cmd_table_phys = htole64(ch->dma->work_bus + ATA_AHCI_CT_OFFSET +
701 				  (ATA_AHCI_CT_SIZE * tag));
702 
703     /* clear eventual ACTIVE bit */
704     ATA_IDX_OUTL(ch, ATA_SACTIVE, ATA_IDX_INL(ch, ATA_SACTIVE) & (1 << tag));
705 
706     /* set command type bit */
707     if (request->flags & ATA_R_ATAPI)
708 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
709 		 ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset) |
710 		 ATA_AHCI_P_CMD_ATAPI);
711     else
712 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
713 		 ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset) &
714 		 ~ATA_AHCI_P_CMD_ATAPI);
715 
716     /* issue command to controller */
717     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CI + offset, (1 << tag));
718 
719     if (!(request->flags & ATA_R_ATAPI)) {
720 	/* device reset doesn't interrupt */
721 	if (request->u.ata.command == ATA_DEVICE_RESET) {
722 	    u_int32_t tf_data;
723 	    int timeout = 1000000;
724 
725 	    do {
726 		DELAY(10);
727 		tf_data = ATA_INL(ctlr->r_res2, ATA_AHCI_P_TFD + (ch->unit<<7));
728 	    } while ((tf_data & ATA_S_BUSY) && timeout--);
729 	    if (bootverbose)
730 		device_printf(ch->dev, "device_reset timeout=%dus\n",
731 			      (1000000-timeout)*10);
732 	    request->status = tf_data;
733 	    if (request->status & ATA_S_ERROR)
734 		request->error = tf_data >> 8;
735 	    return ATA_OP_FINISHED;
736 	}
737     }
738 
739     /* start the timeout */
740     callout_reset(&request->callout, request->timeout * hz,
741 		  (timeout_t*)ata_timeout, request);
742     return ATA_OP_CONTINUES;
743 }
744 
745 /* must be called with ATA channel locked and state_mtx held */
746 static int
747 ata_ahci_end_transaction(struct ata_request *request)
748 {
749     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
750     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
751     struct ata_ahci_cmd_list *clp;
752     u_int32_t tf_data;
753     int offset = ch->unit << 7;
754     int tag = 0;
755 
756     /* kill the timeout */
757     callout_stop(&request->callout);
758 
759     /* get status */
760     tf_data = ATA_INL(ctlr->r_res2, ATA_AHCI_P_TFD + offset);
761     request->status = tf_data;
762 
763     /* if error status get details */
764     if (request->status & ATA_S_ERROR)
765 	request->error = tf_data >> 8;
766 
767     /* record how much data we actually moved */
768     clp = (struct ata_ahci_cmd_list *)
769 	  (ch->dma->work + ATA_AHCI_CL_OFFSET + (ATA_AHCI_CL_SIZE * tag));
770     request->donecount = clp->bytecount;
771 
772     /* release SG list etc */
773     ch->dma->unload(ch->dev);
774 
775     return ATA_OP_FINISHED;
776 }
777 
778 static void
779 ata_ahci_reset(device_t dev)
780 {
781     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
782     struct ata_channel *ch = device_get_softc(dev);
783     u_int32_t cmd, signature;
784     int offset = ch->unit << 7;
785     int timeout;
786 
787     if (!(ATA_INL(ctlr->r_res2, ATA_AHCI_PI) & (1 << ch->unit))) {
788 	device_printf(dev, "port not implemented\n");
789 	return;
790     }
791     ch->devices = 0;
792 
793     /* kill off all activity on this channel */
794     cmd = ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset);
795     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
796 	     cmd & ~(ATA_AHCI_P_CMD_FRE | ATA_AHCI_P_CMD_ST));
797 
798     /* XXX SOS this is not entirely wrong */
799     timeout = 0;
800     do {
801 	DELAY(1000);
802 	if (timeout++ > 500) {
803 	    device_printf(dev, "stopping AHCI engine failed\n");
804 	    break;
805 	}
806     }
807     while (ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset) & ATA_AHCI_P_CMD_CR);
808 
809     /* issue Command List Override if supported */
810     if (ATA_INL(ctlr->r_res2, ATA_AHCI_CAP) & ATA_AHCI_CAP_CLO) {
811 	cmd = ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset);
812 	cmd |= ATA_AHCI_P_CMD_CLO;
813 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset, cmd);
814 	timeout = 0;
815 	do {
816 	    DELAY(1000);
817 	    if (timeout++ > 500) {
818 		device_printf(dev, "executing CLO failed\n");
819 		break;
820 	    }
821 	}
822 	while (ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD+offset)&ATA_AHCI_P_CMD_CLO);
823     }
824 
825     /* reset PHY and decide what is present */
826     if (ata_sata_phy_reset(dev)) {
827 
828 	/* clear any interrupts pending on this channel */
829 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IS + offset,
830 		 ATA_INL(ctlr->r_res2, ATA_AHCI_P_IS + offset));
831 
832 	/* clear SATA error register */
833 	ATA_IDX_OUTL(ch, ATA_SERROR, ATA_IDX_INL(ch, ATA_SERROR));
834 
835 	/* start operations on this channel */
836 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
837 		 (ATA_AHCI_P_CMD_ACTIVE | ATA_AHCI_P_CMD_FRE |
838 		  ATA_AHCI_P_CMD_POD | ATA_AHCI_P_CMD_SUD | ATA_AHCI_P_CMD_ST));
839 
840 	signature = ATA_INL(ctlr->r_res2, ATA_AHCI_P_SIG + offset);
841 	switch (signature) {
842 	case 0x00000101:
843 	    ch->devices = ATA_ATA_MASTER;
844 	    break;
845 	case 0x96690101:
846 	    ch->devices = ATA_PORTMULTIPLIER;
847 	    device_printf(ch->dev, "Portmultipliers not supported yet\n");
848 	    ch->devices = 0;
849 	    break;
850 	case 0xeb140101:
851 	    ch->devices = ATA_ATAPI_MASTER;
852 	    break;
853 	default: /* SOS XXX */
854 	    if (bootverbose)
855 		device_printf(ch->dev, "No signature, assuming disk device\n");
856 	    ch->devices = ATA_ATA_MASTER;
857 	}
858     }
859     if (bootverbose)
860 	device_printf(dev, "ahci_reset devices=0x%b\n", ch->devices,
861 		      "\20\4ATAPI_SLAVE\3ATAPI_MASTER\2ATA_SLAVE\1ATA_MASTER");
862 }
863 
864 static void
865 ata_ahci_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
866 {
867     struct ata_dmasetprd_args *args = xsc;
868     struct ata_ahci_dma_prd *prd = args->dmatab;
869     int i;
870 
871     if (!(args->error = error)) {
872 	for (i = 0; i < nsegs; i++) {
873 	    prd[i].dba = htole64(segs[i].ds_addr);
874 	    prd[i].dbc = htole32((segs[i].ds_len - 1) & ATA_AHCI_PRD_MASK);
875 	}
876     }
877     args->nsegs = nsegs;
878 }
879 
880 static void
881 ata_ahci_dmainit(device_t dev)
882 {
883     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
884     struct ata_channel *ch = device_get_softc(dev);
885 
886     ata_dmainit(dev);
887     if (ch->dma) {
888 	/* note start and stop are not used here */
889 	ch->dma->setprd = ata_ahci_dmasetprd;
890 	ch->dma->max_iosize = 8192 * DEV_BSIZE;
891 	if (ATA_INL(ctlr->r_res2, ATA_AHCI_CAP) & ATA_AHCI_CAP_64BIT)
892 	    ch->dma->max_address = BUS_SPACE_MAXADDR;
893     }
894 }
895 
896 static int
897 ata_ahci_setup_fis(struct ata_ahci_cmd_tab *ctp, struct ata_request *request)
898 {
899     bzero(ctp->cfis, 64);
900     if (request->flags & ATA_R_ATAPI) {
901 	bzero(ctp->acmd, 32);
902 	bcopy(request->u.atapi.ccb, ctp->acmd, 16);
903     }
904     return ata_request2fis_h2d(request, &ctp->cfis[0]);
905 }
906 
907 /*
908  * Acard chipset support functions
909  */
910 int
911 ata_acard_ident(device_t dev)
912 {
913     struct ata_pci_controller *ctlr = device_get_softc(dev);
914     struct ata_chip_id *idx;
915     static struct ata_chip_id ids[] =
916     {{ ATA_ATP850R, 0, ATPOLD, 0x00, ATA_UDMA2, "ATP850" },
917      { ATA_ATP860A, 0, 0,      0x00, ATA_UDMA4, "ATP860A" },
918      { ATA_ATP860R, 0, 0,      0x00, ATA_UDMA4, "ATP860R" },
919      { ATA_ATP865A, 0, 0,      0x00, ATA_UDMA6, "ATP865A" },
920      { ATA_ATP865R, 0, 0,      0x00, ATA_UDMA6, "ATP865R" },
921      { 0, 0, 0, 0, 0, 0}};
922     char buffer[64];
923 
924     if (!(idx = ata_match_chip(dev, ids)))
925 	return ENXIO;
926 
927     ksprintf(buffer, "Acard %s %s controller",
928 	    idx->text, ata_mode2str(idx->max_dma));
929     device_set_desc_copy(dev, buffer);
930     ctlr->chip = idx;
931     ctlr->chipinit = ata_acard_chipinit;
932     return 0;
933 }
934 
935 static int
936 ata_acard_chipinit(device_t dev)
937 {
938     struct ata_pci_controller *ctlr = device_get_softc(dev);
939 
940     if (ata_setup_interrupt(dev))
941 	return ENXIO;
942 
943     ctlr->allocate = ata_acard_allocate;
944     if (ctlr->chip->cfg1 == ATPOLD) {
945 	ctlr->setmode = ata_acard_850_setmode;
946 	ctlr->locking = ata_serialize;
947     }
948     else
949 	ctlr->setmode = ata_acard_86X_setmode;
950     return 0;
951 }
952 
953 static int
954 ata_acard_allocate(device_t dev)
955 {
956     struct ata_channel *ch = device_get_softc(dev);
957 
958     /* setup the usual register normal pci style */
959     if (ata_pci_allocate(dev))
960 	return ENXIO;
961 
962     ch->hw.status = ata_acard_status;
963     return 0;
964 }
965 
966 static int
967 ata_acard_status(device_t dev)
968 {
969     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
970     struct ata_channel *ch = device_get_softc(dev);
971 
972     if (ctlr->chip->cfg1 == ATPOLD &&
973 	ATA_LOCKING(ch->dev, ATA_LF_WHICH) != ch->unit)
974 	    return 0;
975     if (ch->dma && (ch->dma->flags & ATA_DMA_ACTIVE)) {
976 	int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
977 
978 	if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) !=
979 	    ATA_BMSTAT_INTERRUPT)
980 	    return 0;
981 	ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR);
982 	DELAY(1);
983 	ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
984 		     ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
985 	DELAY(1);
986     }
987     if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) {
988 	DELAY(100);
989 	if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY)
990 	    return 0;
991     }
992     return 1;
993 }
994 
995 static void
996 ata_acard_850_setmode(device_t dev, int mode)
997 {
998     device_t gparent = GRANDPARENT(dev);
999     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1000     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1001     struct ata_device *atadev = device_get_softc(dev);
1002     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1003     int error;
1004 
1005     mode = ata_limit_mode(dev, mode,
1006 			  ata_atapi(dev) ? ATA_PIO_MAX : ctlr->chip->max_dma);
1007 
1008     /* XXX SOS missing WDMA0+1 + PIO modes */
1009     if (mode >= ATA_WDMA2) {
1010 	error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1011 	if (bootverbose)
1012 	    device_printf(dev, "%ssetting %s on %s chip\n",
1013 			  (error) ? "FAILURE " : "",
1014 			  ata_mode2str(mode), ctlr->chip->text);
1015 	if (!error) {
1016 	    u_int8_t reg54 = pci_read_config(gparent, 0x54, 1);
1017 
1018 	    reg54 &= ~(0x03 << (devno << 1));
1019 	    if (mode >= ATA_UDMA0)
1020 		reg54 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 1));
1021 	    pci_write_config(gparent, 0x54, reg54, 1);
1022 	    pci_write_config(gparent, 0x4a, 0xa6, 1);
1023 	    pci_write_config(gparent, 0x40 + (devno << 1), 0x0301, 2);
1024 	    atadev->mode = mode;
1025 	    return;
1026 	}
1027     }
1028     /* we could set PIO mode timings, but we assume the BIOS did that */
1029 }
1030 
1031 static void
1032 ata_acard_86X_setmode(device_t dev, int mode)
1033 {
1034     device_t gparent = GRANDPARENT(dev);
1035     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1036     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1037     struct ata_device *atadev = device_get_softc(dev);
1038     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1039     int error;
1040 
1041 
1042     mode = ata_limit_mode(dev, mode,
1043 			  ata_atapi(dev) ? ATA_PIO_MAX : ctlr->chip->max_dma);
1044 
1045     mode = ata_check_80pin(dev, mode);
1046 
1047     /* XXX SOS missing WDMA0+1 + PIO modes */
1048     if (mode >= ATA_WDMA2) {
1049 	error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1050 	if (bootverbose)
1051 	    device_printf(dev, "%ssetting %s on %s chip\n",
1052 			  (error) ? "FAILURE " : "",
1053 			  ata_mode2str(mode), ctlr->chip->text);
1054 	if (!error) {
1055 	    u_int16_t reg44 = pci_read_config(gparent, 0x44, 2);
1056 
1057 	    reg44 &= ~(0x000f << (devno << 2));
1058 	    if (mode >= ATA_UDMA0)
1059 		reg44 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 2));
1060 	    pci_write_config(gparent, 0x44, reg44, 2);
1061 	    pci_write_config(gparent, 0x4a, 0xa6, 1);
1062 	    pci_write_config(gparent, 0x40 + devno, 0x31, 1);
1063 	    atadev->mode = mode;
1064 	    return;
1065 	}
1066     }
1067     /* we could set PIO mode timings, but we assume the BIOS did that */
1068 }
1069 
1070 
1071 /*
1072  * Acer Labs Inc (ALI) chipset support functions
1073  */
1074 int
1075 ata_ali_ident(device_t dev)
1076 {
1077     struct ata_pci_controller *ctlr = device_get_softc(dev);
1078     struct ata_chip_id *idx;
1079     static struct ata_chip_id ids[] =
1080     {{ ATA_ALI_5289, 0x00, 2, ALISATA, ATA_SA150, "M5289" },
1081      { ATA_ALI_5288, 0x00, 4, ALISATA, ATA_SA300, "M5288" },
1082      { ATA_ALI_5287, 0x00, 4, ALISATA, ATA_SA150, "M5287" },
1083      { ATA_ALI_5281, 0x00, 2, ALISATA, ATA_SA150, "M5281" },
1084      { ATA_ALI_5229, 0xc5, 0, ALINEW,  ATA_UDMA6, "M5229" },
1085      { ATA_ALI_5229, 0xc4, 0, ALINEW,  ATA_UDMA5, "M5229" },
1086      { ATA_ALI_5229, 0xc2, 0, ALINEW,  ATA_UDMA4, "M5229" },
1087      { ATA_ALI_5229, 0x20, 0, ALIOLD,  ATA_UDMA2, "M5229" },
1088      { ATA_ALI_5229, 0x00, 0, ALIOLD,  ATA_WDMA2, "M5229" },
1089      { 0, 0, 0, 0, 0, 0}};
1090     char buffer[64];
1091 
1092     if (!(idx = ata_match_chip(dev, ids)))
1093 	return ENXIO;
1094 
1095     ksprintf(buffer, "AcerLabs %s %s controller",
1096 	    idx->text, ata_mode2str(idx->max_dma));
1097     device_set_desc_copy(dev, buffer);
1098     ctlr->chip = idx;
1099     ctlr->chipinit = ata_ali_chipinit;
1100     return 0;
1101 }
1102 
1103 static int
1104 ata_ali_chipinit(device_t dev)
1105 {
1106     struct ata_pci_controller *ctlr = device_get_softc(dev);
1107 
1108     if (ata_setup_interrupt(dev))
1109 	return ENXIO;
1110 
1111     switch (ctlr->chip->cfg2) {
1112     case ALISATA:
1113 	ctlr->channels = ctlr->chip->cfg1;
1114 	ctlr->allocate = ata_ali_sata_allocate;
1115 	ctlr->setmode = ata_sata_setmode;
1116 
1117 	/* AHCI mode is correctly supported only on the ALi 5288. */
1118 	if ((ctlr->chip->chipid == ATA_ALI_5288) &&
1119 	    (ata_ahci_chipinit(dev) != ENXIO))
1120 		return 0;
1121 
1122 	/* enable PCI interrupt */
1123 	pci_write_config(dev, PCIR_COMMAND,
1124 			 pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
1125 	break;
1126 
1127     case ALINEW:
1128 	/* use device interrupt as byte count end */
1129 	pci_write_config(dev, 0x4a, pci_read_config(dev, 0x4a, 1) | 0x20, 1);
1130 
1131 	/* enable cable detection and UDMA support on newer chips */
1132 	pci_write_config(dev, 0x4b, pci_read_config(dev, 0x4b, 1) | 0x09, 1);
1133 
1134 	/* enable ATAPI UDMA mode */
1135 	pci_write_config(dev, 0x53, pci_read_config(dev, 0x53, 1) | 0x01, 1);
1136 
1137 	/* only chips with revision > 0xc4 can do 48bit DMA */
1138 	if (ctlr->chip->chiprev <= 0xc4)
1139 	    device_printf(dev,
1140 			  "using PIO transfers above 137GB as workaround for "
1141 			  "48bit DMA access bug, expect reduced performance\n");
1142 	ctlr->allocate = ata_ali_allocate;
1143 	ctlr->reset = ata_ali_reset;
1144 	ctlr->setmode = ata_ali_setmode;
1145 	break;
1146 
1147     case ALIOLD:
1148 	/* deactivate the ATAPI FIFO and enable ATAPI UDMA */
1149 	pci_write_config(dev, 0x53, pci_read_config(dev, 0x53, 1) | 0x03, 1);
1150 	ctlr->setmode = ata_ali_setmode;
1151 	break;
1152     }
1153     return 0;
1154 }
1155 
1156 static int
1157 ata_ali_allocate(device_t dev)
1158 {
1159     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1160     struct ata_channel *ch = device_get_softc(dev);
1161 
1162     /* setup the usual register normal pci style */
1163     if (ata_pci_allocate(dev))
1164 	return ENXIO;
1165 
1166     /* older chips can't do 48bit DMA transfers */
1167     if (ctlr->chip->chiprev <= 0xc4)
1168 	ch->flags |= ATA_NO_48BIT_DMA;
1169 
1170     return 0;
1171 }
1172 
1173 static int
1174 ata_ali_sata_allocate(device_t dev)
1175 {
1176     device_t parent = device_get_parent(dev);
1177     struct ata_pci_controller *ctlr = device_get_softc(parent);
1178     struct ata_channel *ch = device_get_softc(dev);
1179     struct resource *io = NULL, *ctlio = NULL;
1180     int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2);
1181     int i, rid;
1182 
1183     rid = PCIR_BAR(0) + (unit01 ? 8 : 0);
1184     io = bus_alloc_resource_any(parent, SYS_RES_IOPORT, &rid, RF_ACTIVE);
1185     if (!io)
1186 	return ENXIO;
1187 
1188     rid = PCIR_BAR(1) + (unit01 ? 8 : 0);
1189     ctlio = bus_alloc_resource_any(parent, SYS_RES_IOPORT, &rid, RF_ACTIVE);
1190     if (!ctlio) {
1191 	bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
1192 	return ENXIO;
1193     }
1194 
1195     for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
1196 	ch->r_io[i].res = io;
1197 	ch->r_io[i].offset = i + (unit10 ? 8 : 0);
1198     }
1199     ch->r_io[ATA_CONTROL].res = ctlio;
1200     ch->r_io[ATA_CONTROL].offset = 2 + (unit10 ? 4 : 0);
1201     ch->r_io[ATA_IDX_ADDR].res = io;
1202     ata_default_registers(dev);
1203     if (ctlr->r_res1) {
1204 	for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
1205 	    ch->r_io[i].res = ctlr->r_res1;
1206 	    ch->r_io[i].offset = (i - ATA_BMCMD_PORT)+(ch->unit * ATA_BMIOSIZE);
1207 	}
1208     }
1209     ch->flags |= ATA_NO_SLAVE;
1210 
1211     /* XXX SOS PHY handling awkward in ALI chip not supported yet */
1212     ata_pci_hw(dev);
1213     return 0;
1214 }
1215 
1216 static void
1217 ata_ali_reset(device_t dev)
1218 {
1219     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1220     struct ata_channel *ch = device_get_softc(dev);
1221     device_t *children;
1222     int nchildren, i;
1223 
1224     ata_generic_reset(dev);
1225 
1226     /*
1227      * workaround for datacorruption bug found on at least SUN Blade-100
1228      * find the ISA function on the southbridge and disable then enable
1229      * the ATA channel tristate buffer
1230      */
1231     if (ctlr->chip->chiprev == 0xc3 || ctlr->chip->chiprev == 0xc2) {
1232 	if (!device_get_children(GRANDPARENT(dev), &children, &nchildren)) {
1233 	    for (i = 0; i < nchildren; i++) {
1234 		if (pci_get_devid(children[i]) == ATA_ALI_1533) {
1235 		    pci_write_config(children[i], 0x58,
1236 				     pci_read_config(children[i], 0x58, 1) &
1237 				     ~(0x04 << ch->unit), 1);
1238 		    pci_write_config(children[i], 0x58,
1239 				     pci_read_config(children[i], 0x58, 1) |
1240 				     (0x04 << ch->unit), 1);
1241 		    break;
1242 		}
1243 	    }
1244 	    kfree(children, M_TEMP);
1245 	}
1246     }
1247 }
1248 
1249 static void
1250 ata_ali_setmode(device_t dev, int mode)
1251 {
1252     device_t gparent = GRANDPARENT(dev);
1253     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1254     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1255     struct ata_device *atadev = device_get_softc(dev);
1256     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1257     int error;
1258 
1259     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
1260 
1261     if (ctlr->chip->cfg2 & ALINEW) {
1262 	if (mode > ATA_UDMA2 &&
1263 	    pci_read_config(gparent, 0x4a, 1) & (1 << ch->unit)) {
1264 	    ata_print_cable(dev, "controller");
1265 	    mode = ATA_UDMA2;
1266 	}
1267     }
1268     else
1269 	mode = ata_check_80pin(dev, mode);
1270 
1271     if (ctlr->chip->cfg2 & ALIOLD) {
1272 	/* doesn't support ATAPI DMA on write */
1273 	ch->flags |= ATA_ATAPI_DMA_RO;
1274 	if (ch->devices & ATA_ATAPI_MASTER && ch->devices & ATA_ATAPI_SLAVE) {
1275 	    /* doesn't support ATAPI DMA on two ATAPI devices */
1276 	    device_printf(dev, "two atapi devices on this channel, no DMA\n");
1277 	    mode = ata_limit_mode(dev, mode, ATA_PIO_MAX);
1278 	}
1279     }
1280 
1281     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1282 
1283     if (bootverbose)
1284 	device_printf(dev, "%ssetting %s on %s chip\n",
1285 		   (error) ? "FAILURE " : "",
1286 		   ata_mode2str(mode), ctlr->chip->text);
1287     if (!error) {
1288 	if (mode >= ATA_UDMA0) {
1289 	    u_int8_t udma[] = {0x0c, 0x0b, 0x0a, 0x09, 0x08, 0x0f, 0x0d};
1290 	    u_int32_t word54 = pci_read_config(gparent, 0x54, 4);
1291 
1292 	    word54 &= ~(0x000f000f << (devno << 2));
1293 	    word54 |= (((udma[mode&ATA_MODE_MASK]<<16)|0x05)<<(devno<<2));
1294 	    pci_write_config(gparent, 0x54, word54, 4);
1295 	    pci_write_config(gparent, 0x58 + (ch->unit << 2),
1296 			     0x00310001, 4);
1297 	}
1298 	else {
1299 	    u_int32_t piotimings[] =
1300 		{ 0x006d0003, 0x00580002, 0x00440001, 0x00330001,
1301 		  0x00310001, 0x00440001, 0x00330001, 0x00310001};
1302 
1303 	    pci_write_config(gparent, 0x54, pci_read_config(gparent, 0x54, 4) &
1304 					    ~(0x0008000f << (devno << 2)), 4);
1305 	    pci_write_config(gparent, 0x58 + (ch->unit << 2),
1306 			     piotimings[ata_mode2idx(mode)], 4);
1307 	}
1308 	atadev->mode = mode;
1309     }
1310 }
1311 
1312 
1313 /*
1314  * American Micro Devices (AMD) chipset support functions
1315  */
1316 int
1317 ata_amd_ident(device_t dev)
1318 {
1319     struct ata_pci_controller *ctlr = device_get_softc(dev);
1320     struct ata_chip_id *idx;
1321     static struct ata_chip_id ids[] =
1322     {{ ATA_AMD756,  0x00, AMDNVIDIA, 0x00,            ATA_UDMA4, "756" },
1323      { ATA_AMD766,  0x00, AMDNVIDIA, AMDCABLE|AMDBUG, ATA_UDMA5, "766" },
1324      { ATA_AMD768,  0x00, AMDNVIDIA, AMDCABLE,        ATA_UDMA5, "768" },
1325      { ATA_AMD8111, 0x00, AMDNVIDIA, AMDCABLE,        ATA_UDMA6, "8111" },
1326      { 0, 0, 0, 0, 0, 0}};
1327     char buffer[64];
1328 
1329     if (!(idx = ata_match_chip(dev, ids)))
1330 	return ENXIO;
1331 
1332     ksprintf(buffer, "AMD %s %s controller",
1333 	    idx->text, ata_mode2str(idx->max_dma));
1334     device_set_desc_copy(dev, buffer);
1335     ctlr->chip = idx;
1336     ctlr->chipinit = ata_amd_chipinit;
1337     return 0;
1338 }
1339 
1340 static int
1341 ata_amd_chipinit(device_t dev)
1342 {
1343     struct ata_pci_controller *ctlr = device_get_softc(dev);
1344 
1345     if (ata_setup_interrupt(dev))
1346 	return ENXIO;
1347 
1348     /* disable/set prefetch, postwrite */
1349     if (ctlr->chip->cfg2 & AMDBUG)
1350 	pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) & 0x0f, 1);
1351     else
1352 	pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) | 0xf0, 1);
1353 
1354     ctlr->setmode = ata_via_family_setmode;
1355     return 0;
1356 }
1357 
1358 
1359 /*
1360  * ATI chipset support functions
1361  */
1362 int
1363 ata_ati_ident(device_t dev)
1364 {
1365     struct ata_pci_controller *ctlr = device_get_softc(dev);
1366     struct ata_chip_id *idx;
1367     static struct ata_chip_id ids[] =
1368     {{ ATA_ATI_IXP200,    0x00, 0,        0, ATA_UDMA5, "IXP200" },
1369      { ATA_ATI_IXP300,    0x00, 0,        0, ATA_UDMA6, "IXP300" },
1370      { ATA_ATI_IXP400,    0x00, 0,        0, ATA_UDMA6, "IXP400" },
1371      { ATA_ATI_SB600,     0x00, 0,        0, ATA_UDMA6, "SB600"  },
1372      { ATA_ATI_IXP300_S1, 0x00, SIIMEMIO, 0, ATA_SA150, "IXP300" },
1373      { ATA_ATI_IXP400_S1, 0x00, SIIMEMIO, 0, ATA_SA150, "IXP400" },
1374      { ATA_ATI_IXP400_S2, 0x00, SIIMEMIO, 0, ATA_SA150, "IXP400" },
1375      { ATA_ATI_SB600_S1,  0x00, ATIAHCI,     0, ATA_SA300, "SB600"  },
1376      { ATA_ATI_SB600_S2,  0x00, ATIAHCI,     0, ATA_SA300, "SB600"  },
1377      { 0, 0, 0, 0, 0, 0}};
1378     char buffer[64];
1379 
1380     if (!(idx = ata_match_chip(dev, ids)))
1381 	return ENXIO;
1382 
1383     ksprintf(buffer, "ATI %s %s controller",
1384 	    idx->text, ata_mode2str(idx->max_dma));
1385     device_set_desc_copy(dev, buffer);
1386     ctlr->chip = idx;
1387 
1388     /*
1389      * The ATI SATA controllers are actually a SiI 3112 controller, except
1390      * for the SB600.
1391      */
1392     if (ctlr->chip->cfg1 & SIIMEMIO)
1393 	ctlr->chipinit = ata_sii_chipinit;
1394     else
1395 	ctlr->chipinit = ata_ati_chipinit;
1396     return 0;
1397 }
1398 
1399 static int
1400 ata_ati_chipinit(device_t dev)
1401 {
1402     struct ata_pci_controller *ctlr = device_get_softc(dev);
1403 
1404     if (ata_setup_interrupt(dev))
1405 	return ENXIO;
1406 
1407     /* The SB600 needs special treatment. */
1408     if (ctlr->chip->cfg1 & ATIAHCI) {
1409 	/* Check if the chip is configured as an AHCI part. */
1410 	if ((pci_get_subclass(dev) == PCIS_STORAGE_SATA) &&
1411 	    (pci_read_config(dev, PCIR_PROGIF, 1) == PCIP_STORAGE_SATA_AHCI_1_0)) {
1412 	    if (ata_ahci_chipinit(dev) != ENXIO)
1413 		return 0;
1414 	}
1415     }
1416 
1417     ctlr->setmode = ata_ati_setmode;
1418     return 0;
1419 }
1420 
1421 static void
1422 ata_ati_setmode(device_t dev, int mode)
1423 {
1424     device_t gparent = GRANDPARENT(dev);
1425     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1426     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1427     struct ata_device *atadev = device_get_softc(dev);
1428     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1429     int offset = (devno ^ 0x01) << 3;
1430     int error;
1431     u_int8_t piotimings[] = { 0x5d, 0x47, 0x34, 0x22, 0x20, 0x34, 0x22, 0x20,
1432 			      0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
1433     u_int8_t dmatimings[] = { 0x77, 0x21, 0x20 };
1434 
1435     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
1436 
1437     mode = ata_check_80pin(dev, mode);
1438 
1439     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1440 
1441     if (bootverbose)
1442 	device_printf(dev, "%ssetting %s on %s chip\n",
1443 		      (error) ? "FAILURE " : "",
1444 		      ata_mode2str(mode), ctlr->chip->text);
1445     if (!error) {
1446 	if (mode >= ATA_UDMA0) {
1447 	    pci_write_config(gparent, 0x56,
1448 			     (pci_read_config(gparent, 0x56, 2) &
1449 			      ~(0xf << (devno << 2))) |
1450 			     ((mode & ATA_MODE_MASK) << (devno << 2)), 2);
1451 	    pci_write_config(gparent, 0x54,
1452 			     pci_read_config(gparent, 0x54, 1) |
1453 			     (0x01 << devno), 1);
1454 	    pci_write_config(gparent, 0x44,
1455 			     (pci_read_config(gparent, 0x44, 4) &
1456 			      ~(0xff << offset)) |
1457 			     (dmatimings[2] << offset), 4);
1458 	}
1459 	else if (mode >= ATA_WDMA0) {
1460 	    pci_write_config(gparent, 0x54,
1461 			     pci_read_config(gparent, 0x54, 1) &
1462 			      ~(0x01 << devno), 1);
1463 	    pci_write_config(gparent, 0x44,
1464 			     (pci_read_config(gparent, 0x44, 4) &
1465 			      ~(0xff << offset)) |
1466 			     (dmatimings[mode & ATA_MODE_MASK] << offset), 4);
1467 	}
1468 	else
1469 	    pci_write_config(gparent, 0x54,
1470 			     pci_read_config(gparent, 0x54, 1) &
1471 			     ~(0x01 << devno), 1);
1472 
1473 	pci_write_config(gparent, 0x4a,
1474 			 (pci_read_config(gparent, 0x4a, 2) &
1475 			  ~(0xf << (devno << 2))) |
1476 			 (((mode - ATA_PIO0) & ATA_MODE_MASK) << (devno<<2)),2);
1477 	pci_write_config(gparent, 0x40,
1478 			 (pci_read_config(gparent, 0x40, 4) &
1479 			  ~(0xff << offset)) |
1480 			 (piotimings[ata_mode2idx(mode)] << offset), 4);
1481 	atadev->mode = mode;
1482     }
1483 }
1484 
1485 /*
1486  * Cyrix chipset support functions
1487  */
1488 int
1489 ata_cyrix_ident(device_t dev)
1490 {
1491     struct ata_pci_controller *ctlr = device_get_softc(dev);
1492 
1493     if (pci_get_devid(dev) == ATA_CYRIX_5530) {
1494 	device_set_desc(dev, "Cyrix 5530 ATA33 controller");
1495 	ctlr->chipinit = ata_cyrix_chipinit;
1496 	return 0;
1497     }
1498     return ENXIO;
1499 }
1500 
1501 static int
1502 ata_cyrix_chipinit(device_t dev)
1503 {
1504     struct ata_pci_controller *ctlr = device_get_softc(dev);
1505 
1506     if (ata_setup_interrupt(dev))
1507 	return ENXIO;
1508 
1509     if (ctlr->r_res1)
1510 	ctlr->setmode = ata_cyrix_setmode;
1511     else
1512 	ctlr->setmode = ata_generic_setmode;
1513     return 0;
1514 }
1515 
1516 static void
1517 ata_cyrix_setmode(device_t dev, int mode)
1518 {
1519     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1520     struct ata_device *atadev = device_get_softc(dev);
1521     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1522     u_int32_t piotiming[] =
1523 	{ 0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010 };
1524     u_int32_t dmatiming[] = { 0x00077771, 0x00012121, 0x00002020 };
1525     u_int32_t udmatiming[] = { 0x00921250, 0x00911140, 0x00911030 };
1526     int error;
1527 
1528     ch->dma->alignment = 16;
1529     ch->dma->max_iosize = 126 * DEV_BSIZE;
1530 
1531     mode = ata_limit_mode(dev, mode, ATA_UDMA2);
1532 
1533     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1534 
1535     if (bootverbose)
1536 	device_printf(dev, "%ssetting %s on Cyrix chip\n",
1537 		      (error) ? "FAILURE " : "", ata_mode2str(mode));
1538     if (!error) {
1539 	if (mode >= ATA_UDMA0) {
1540 	    ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
1541 		     0x24 + (devno << 3), udmatiming[mode & ATA_MODE_MASK]);
1542 	}
1543 	else if (mode >= ATA_WDMA0) {
1544 	    ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
1545 		     0x24 + (devno << 3), dmatiming[mode & ATA_MODE_MASK]);
1546 	}
1547 	else {
1548 	    ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
1549 		     0x20 + (devno << 3), piotiming[mode & ATA_MODE_MASK]);
1550 	}
1551 	atadev->mode = mode;
1552     }
1553 }
1554 
1555 
1556 /*
1557  * Cypress chipset support functions
1558  */
1559 int
1560 ata_cypress_ident(device_t dev)
1561 {
1562     struct ata_pci_controller *ctlr = device_get_softc(dev);
1563 
1564     /*
1565      * the Cypress chip is a mess, it contains two ATA functions, but
1566      * both channels are visible on the first one.
1567      * simply ignore the second function for now, as the right
1568      * solution (ignoring the second channel on the first function)
1569      * doesn't work with the crappy ATA interrupt setup on the alpha.
1570      */
1571     if (pci_get_devid(dev) == ATA_CYPRESS_82C693 &&
1572 	pci_get_function(dev) == 1 &&
1573 	pci_get_subclass(dev) == PCIS_STORAGE_IDE) {
1574 	device_set_desc(dev, "Cypress 82C693 ATA controller");
1575 	ctlr->chipinit = ata_cypress_chipinit;
1576 	return 0;
1577     }
1578     return ENXIO;
1579 }
1580 
1581 static int
1582 ata_cypress_chipinit(device_t dev)
1583 {
1584     struct ata_pci_controller *ctlr = device_get_softc(dev);
1585 
1586     if (ata_setup_interrupt(dev))
1587 	return ENXIO;
1588 
1589     ctlr->setmode = ata_cypress_setmode;
1590     return 0;
1591 }
1592 
1593 static void
1594 ata_cypress_setmode(device_t dev, int mode)
1595 {
1596     device_t gparent = GRANDPARENT(dev);
1597     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1598     struct ata_device *atadev = device_get_softc(dev);
1599     int error;
1600 
1601     mode = ata_limit_mode(dev, mode, ATA_WDMA2);
1602 
1603     /* XXX SOS missing WDMA0+1 + PIO modes */
1604     if (mode == ATA_WDMA2) {
1605 	error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1606 	if (bootverbose)
1607 	    device_printf(dev, "%ssetting WDMA2 on Cypress chip\n",
1608 			  error ? "FAILURE " : "");
1609 	if (!error) {
1610 	    pci_write_config(gparent, ch->unit ? 0x4e : 0x4c, 0x2020, 2);
1611 	    atadev->mode = mode;
1612 	    return;
1613 	}
1614     }
1615     /* we could set PIO mode timings, but we assume the BIOS did that */
1616 }
1617 
1618 
1619 /*
1620  * HighPoint chipset support functions
1621  */
1622 int
1623 ata_highpoint_ident(device_t dev)
1624 {
1625     struct ata_pci_controller *ctlr = device_get_softc(dev);
1626     struct ata_chip_id *idx;
1627     static struct ata_chip_id ids[] =
1628     {{ ATA_HPT374, 0x07, HPT374, 0x00,   ATA_UDMA6, "HPT374" },
1629      { ATA_HPT372, 0x02, HPT372, 0x00,   ATA_UDMA6, "HPT372N" },
1630      { ATA_HPT372, 0x01, HPT372, 0x00,   ATA_UDMA6, "HPT372" },
1631      { ATA_HPT371, 0x01, HPT372, 0x00,   ATA_UDMA6, "HPT371" },
1632      { ATA_HPT366, 0x05, HPT372, 0x00,   ATA_UDMA6, "HPT372" },
1633      { ATA_HPT366, 0x03, HPT370, 0x00,   ATA_UDMA5, "HPT370" },
1634      { ATA_HPT366, 0x02, HPT366, 0x00,   ATA_UDMA4, "HPT368" },
1635      { ATA_HPT366, 0x00, HPT366, HPTOLD, ATA_UDMA4, "HPT366" },
1636      { ATA_HPT302, 0x01, HPT372, 0x00,   ATA_UDMA6, "HPT302" },
1637      { 0, 0, 0, 0, 0, 0}};
1638     char buffer[64];
1639 
1640     if (!(idx = ata_match_chip(dev, ids)))
1641 	return ENXIO;
1642 
1643     strcpy(buffer, "HighPoint ");
1644     strcat(buffer, idx->text);
1645     if (idx->cfg1 == HPT374) {
1646 	if (pci_get_function(dev) == 0)
1647 	    strcat(buffer, " (channel 0+1)");
1648 	if (pci_get_function(dev) == 1)
1649 	    strcat(buffer, " (channel 2+3)");
1650     }
1651     ksprintf(buffer, "%s %s controller", buffer, ata_mode2str(idx->max_dma));
1652     device_set_desc_copy(dev, buffer);
1653     ctlr->chip = idx;
1654     ctlr->chipinit = ata_highpoint_chipinit;
1655     return 0;
1656 }
1657 
1658 static int
1659 ata_highpoint_chipinit(device_t dev)
1660 {
1661     struct ata_pci_controller *ctlr = device_get_softc(dev);
1662 
1663     if (ata_setup_interrupt(dev))
1664 	return ENXIO;
1665 
1666     if (ctlr->chip->cfg2 == HPTOLD) {
1667 	/* disable interrupt prediction */
1668 	pci_write_config(dev, 0x51, (pci_read_config(dev, 0x51, 1) & ~0x80), 1);
1669     }
1670     else {
1671 	/* disable interrupt prediction */
1672 	pci_write_config(dev, 0x51, (pci_read_config(dev, 0x51, 1) & ~0x03), 1);
1673 	pci_write_config(dev, 0x55, (pci_read_config(dev, 0x55, 1) & ~0x03), 1);
1674 
1675 	/* enable interrupts */
1676 	pci_write_config(dev, 0x5a, (pci_read_config(dev, 0x5a, 1) & ~0x10), 1);
1677 
1678 	/* set clocks etc */
1679 	if (ctlr->chip->cfg1 < HPT372)
1680 	    pci_write_config(dev, 0x5b, 0x22, 1);
1681 	else
1682 	    pci_write_config(dev, 0x5b,
1683 			     (pci_read_config(dev, 0x5b, 1) & 0x01) | 0x20, 1);
1684     }
1685     ctlr->allocate = ata_highpoint_allocate;
1686     ctlr->setmode = ata_highpoint_setmode;
1687     return 0;
1688 }
1689 
1690 static int
1691 ata_highpoint_allocate(device_t dev)
1692 {
1693     struct ata_channel *ch = device_get_softc(dev);
1694 
1695     /* setup the usual register normal pci style */
1696     if (ata_pci_allocate(dev))
1697 	return ENXIO;
1698 
1699     ch->flags |= ATA_ALWAYS_DMASTAT;
1700     return 0;
1701 }
1702 
1703 static void
1704 ata_highpoint_setmode(device_t dev, int mode)
1705 {
1706     device_t gparent = GRANDPARENT(dev);
1707     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1708     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1709     struct ata_device *atadev = device_get_softc(dev);
1710     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1711     int error;
1712     u_int32_t timings33[][4] = {
1713     /*    HPT366      HPT370      HPT372      HPT374               mode */
1714 	{ 0x40d0a7aa, 0x06914e57, 0x0d029d5e, 0x0ac1f48a },     /* PIO 0 */
1715 	{ 0x40d0a7a3, 0x06914e43, 0x0d029d26, 0x0ac1f465 },     /* PIO 1 */
1716 	{ 0x40d0a753, 0x06514e33, 0x0c829ca6, 0x0a81f454 },     /* PIO 2 */
1717 	{ 0x40c8a742, 0x06514e22, 0x0c829c84, 0x0a81f443 },     /* PIO 3 */
1718 	{ 0x40c8a731, 0x06514e21, 0x0c829c62, 0x0a81f442 },     /* PIO 4 */
1719 	{ 0x20c8a797, 0x26514e97, 0x2c82922e, 0x228082ea },     /* MWDMA 0 */
1720 	{ 0x20c8a732, 0x26514e33, 0x2c829266, 0x22808254 },     /* MWDMA 1 */
1721 	{ 0x20c8a731, 0x26514e21, 0x2c829262, 0x22808242 },     /* MWDMA 2 */
1722 	{ 0x10c8a731, 0x16514e31, 0x1c829c62, 0x121882ea },     /* UDMA 0 */
1723 	{ 0x10cba731, 0x164d4e31, 0x1c9a9c62, 0x12148254 },     /* UDMA 1 */
1724 	{ 0x10caa731, 0x16494e31, 0x1c929c62, 0x120c8242 },     /* UDMA 2 */
1725 	{ 0x10cfa731, 0x166d4e31, 0x1c8e9c62, 0x128c8242 },     /* UDMA 3 */
1726 	{ 0x10c9a731, 0x16454e31, 0x1c8a9c62, 0x12ac8242 },     /* UDMA 4 */
1727 	{ 0,          0x16454e31, 0x1c8a9c62, 0x12848242 },     /* UDMA 5 */
1728 	{ 0,          0,          0x1c869c62, 0x12808242 }      /* UDMA 6 */
1729     };
1730 
1731     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
1732 
1733     if (ctlr->chip->cfg1 == HPT366 && ata_atapi(dev))
1734 	mode = ata_limit_mode(dev, mode, ATA_PIO_MAX);
1735 
1736     mode = ata_highpoint_check_80pin(dev, mode);
1737 
1738     /*
1739      * most if not all HPT chips cant really handle that the device is
1740      * running at ATA_UDMA6/ATA133 speed, so we cheat at set the device to
1741      * a max of ATA_UDMA5/ATA100 to guard against suboptimal performance
1742      */
1743     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0,
1744 			   ata_limit_mode(dev, mode, ATA_UDMA5));
1745     if (bootverbose)
1746 	device_printf(dev, "%ssetting %s on HighPoint chip\n",
1747 		      (error) ? "FAILURE " : "", ata_mode2str(mode));
1748     if (!error)
1749 	pci_write_config(gparent, 0x40 + (devno << 2),
1750 			 timings33[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
1751     atadev->mode = mode;
1752 }
1753 
1754 static int
1755 ata_highpoint_check_80pin(device_t dev, int mode)
1756 {
1757     device_t gparent = GRANDPARENT(dev);
1758     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1759     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1760     u_int8_t reg, val, res;
1761 
1762     if (ctlr->chip->cfg1 == HPT374 && pci_get_function(gparent) == 1) {
1763 	reg = ch->unit ? 0x57 : 0x53;
1764 	val = pci_read_config(gparent, reg, 1);
1765 	pci_write_config(gparent, reg, val | 0x80, 1);
1766     }
1767     else {
1768 	reg = 0x5b;
1769 	val = pci_read_config(gparent, reg, 1);
1770 	pci_write_config(gparent, reg, val & 0xfe, 1);
1771     }
1772     res = pci_read_config(gparent, 0x5a, 1) & (ch->unit ? 0x1:0x2);
1773     pci_write_config(gparent, reg, val, 1);
1774 
1775     if (mode > ATA_UDMA2 && res) {
1776 	ata_print_cable(dev, "controller");
1777 	mode = ATA_UDMA2;
1778     }
1779     return mode;
1780 }
1781 
1782 
1783 /*
1784  * Intel chipset support functions
1785  */
1786 int
1787 ata_intel_ident(device_t dev)
1788 {
1789     struct ata_pci_controller *ctlr = device_get_softc(dev);
1790     struct ata_chip_id *idx;
1791     static struct ata_chip_id ids[] =
1792     {{ ATA_I82371FB,    0,    0, 0x00, ATA_WDMA2, "PIIX" },
1793      { ATA_I82371SB,    0,    0, 0x00, ATA_WDMA2, "PIIX3" },
1794      { ATA_I82371AB,    0,    0, 0x00, ATA_UDMA2, "PIIX4" },
1795      { ATA_I82443MX,    0,    0, 0x00, ATA_UDMA2, "PIIX4" },
1796      { ATA_I82451NX,    0,    0, 0x00, ATA_UDMA2, "PIIX4" },
1797      { ATA_I82801AB,    0,    0, 0x00, ATA_UDMA2, "ICH0" },
1798      { ATA_I82801AA,    0,    0, 0x00, ATA_UDMA4, "ICH" },
1799      { ATA_I82372FB,    0,    0, 0x00, ATA_UDMA4, "ICH" },
1800      { ATA_I82801BA,    0,    0, 0x00, ATA_UDMA5, "ICH2" },
1801      { ATA_I82801BA_1,  0,    0, 0x00, ATA_UDMA5, "ICH2" },
1802      { ATA_I82801CA,    0,    0, 0x00, ATA_UDMA5, "ICH3" },
1803      { ATA_I82801CA_1,  0,    0, 0x00, ATA_UDMA5, "ICH3" },
1804      { ATA_I82801DB,    0,    0, 0x00, ATA_UDMA5, "ICH4" },
1805      { ATA_I82801DB_1,  0,    0, 0x00, ATA_UDMA5, "ICH4" },
1806      { ATA_I82801EB,    0,    0, 0x00, ATA_UDMA5, "ICH5" },
1807      { ATA_I82801EB_S1, 0,    0, 0x00, ATA_SA150, "ICH5" },
1808      { ATA_I82801EB_R1, 0,    0, 0x00, ATA_SA150, "ICH5" },
1809      { ATA_I6300ESB,    0,    0, 0x00, ATA_UDMA5, "6300ESB" },
1810      { ATA_I6300ESB_S1, 0,    0, 0x00, ATA_SA150, "6300ESB" },
1811      { ATA_I6300ESB_R1, 0,    0, 0x00, ATA_SA150, "6300ESB" },
1812      { ATA_I82801FB,    0,    0, 0x00, ATA_UDMA5, "ICH6" },
1813      { ATA_I82801FB_S1, 0, AHCI, 0x00, ATA_SA150, "ICH6" },
1814      { ATA_I82801FB_R1, 0, AHCI, 0x00, ATA_SA150, "ICH6" },
1815      { ATA_I82801FBM,   0, AHCI, 0x00, ATA_SA150, "ICH6M" },
1816      { ATA_I82801GB,    0,    0, 0x00, ATA_UDMA5, "ICH7" },
1817      { ATA_I82801GB_S1, 0, AHCI, 0x00, ATA_SA300, "ICH7" },
1818      { ATA_I82801GB_R1, 0, AHCI, 0x00, ATA_SA300, "ICH7" },
1819      { ATA_I82801GB_AH, 0, AHCI, 0x00, ATA_SA300, "ICH7" },
1820      { ATA_I82801GBM_S1, 0, AHCI, 0x00, ATA_SA300, "ICH7M" },
1821      { ATA_I82801GBM_R1, 0, AHCI, 0x00, ATA_SA300, "ICH7M" },
1822      { ATA_I82801GBM_AH, 0, AHCI, 0x00, ATA_SA300, "ICH7M" },
1823      { ATA_I63XXESB2,    0,    0, 0x00, ATA_UDMA5, "63XXESB2" },
1824      { ATA_I63XXESB2_S1, 0, AHCI, 0x00, ATA_SA300, "63XXESB2" },
1825      { ATA_I63XXESB2_S2, 0, AHCI, 0x00, ATA_SA300, "63XXESB2" },
1826      { ATA_I63XXESB2_R1, 0, AHCI, 0x00, ATA_SA300, "63XXESB2" },
1827      { ATA_I63XXESB2_R2, 0, AHCI, 0x00, ATA_SA300, "63XXESB2" },
1828      { ATA_I82801HB_S1,  0, AHCI, 0x00, ATA_SA300, "ICH8" },
1829      { ATA_I82801HB_S2,  0, AHCI, 0x00, ATA_SA300, "ICH8" },
1830      { ATA_I82801HB_R1,  0, AHCI, 0x00, ATA_SA300, "ICH8" },
1831      { ATA_I82801HB_AH4, 0, AHCI, 0x00, ATA_SA300, "ICH8" },
1832      { ATA_I82801HB_AH6, 0, AHCI, 0x00, ATA_SA300, "ICH8" },
1833      { ATA_I82801HBM_S1, 0,    0, 0x00, ATA_SA300, "ICH8M" },
1834      { ATA_I82801HBM_S2, 0, AHCI, 0x00, ATA_SA300, "ICH8M" },
1835      { ATA_I82801HBM_S3, 0, AHCI, 0x00, ATA_SA300, "ICH8M" },
1836      { ATA_I82801IB_S1,  0, AHCI, 0x00, ATA_SA300, "ICH9" },
1837      { ATA_I82801IB_S2,  0, AHCI, 0x00, ATA_SA300, "ICH9" },
1838      { ATA_I82801IB_AH2, 0, AHCI, 0x00, ATA_SA300, "ICH9" },
1839      { ATA_I82801IB_AH4, 0, AHCI, 0x00, ATA_SA300, "ICH9" },
1840      { ATA_I82801IB_AH6, 0, AHCI, 0x00, ATA_SA300, "ICH9" },
1841      { ATA_I31244,      0,    0, 0x00, ATA_SA150, "31244" },
1842      { 0, 0, 0, 0, 0, 0}};
1843     char buffer[64];
1844 
1845     if (!(idx = ata_match_chip(dev, ids)))
1846 	return ENXIO;
1847 
1848     ksprintf(buffer, "Intel %s %s controller",
1849 	    idx->text, ata_mode2str(idx->max_dma));
1850     device_set_desc_copy(dev, buffer);
1851     ctlr->chip = idx;
1852     ctlr->chipinit = ata_intel_chipinit;
1853     return 0;
1854 }
1855 
1856 static int
1857 ata_intel_chipinit(device_t dev)
1858 {
1859     struct ata_pci_controller *ctlr = device_get_softc(dev);
1860 
1861     if (ata_setup_interrupt(dev))
1862 	return ENXIO;
1863 
1864     /* good old PIIX needs special treatment (not implemented) */
1865     if (ctlr->chip->chipid == ATA_I82371FB) {
1866 	ctlr->setmode = ata_intel_old_setmode;
1867     }
1868 
1869     /* the intel 31244 needs special care if in DPA mode */
1870     else if (ctlr->chip->chipid == ATA_I31244) {
1871 	if (pci_get_subclass(dev) != PCIS_STORAGE_IDE) {
1872 	    ctlr->r_type2 = SYS_RES_MEMORY;
1873 	    ctlr->r_rid2 = PCIR_BAR(0);
1874 	    if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
1875 							&ctlr->r_rid2,
1876 							RF_ACTIVE)))
1877 		return ENXIO;
1878 	    ctlr->channels = 4;
1879 	    ctlr->allocate = ata_intel_31244_allocate;
1880 	    ctlr->reset = ata_intel_31244_reset;
1881 	}
1882 	ctlr->setmode = ata_sata_setmode;
1883     }
1884 
1885     /* non SATA intel chips goes here */
1886     else if (ctlr->chip->max_dma < ATA_SA150) {
1887 	ctlr->allocate = ata_intel_allocate;
1888 	ctlr->setmode = ata_intel_new_setmode;
1889     }
1890 
1891     /* SATA parts can be either compat or AHCI */
1892     else {
1893 	/* force all ports active "the legacy way" */
1894 	pci_write_config(dev, 0x92, pci_read_config(dev, 0x92, 2) | 0x0f,2);
1895 
1896 	ctlr->allocate = ata_intel_allocate;
1897 	ctlr->reset = ata_intel_reset;
1898 
1899 	/*
1900 	 * if we have AHCI capability and BAR(5) as a memory resource
1901 	 * and AHCI or RAID mode enabled in BIOS we go for AHCI mode
1902 	 */
1903 	if ((ctlr->chip->cfg1 == AHCI) &&
1904 	    (pci_read_config(dev, 0x90, 1) & 0xc0) &&
1905 	    (ata_ahci_chipinit(dev) != ENXIO))
1906 	    return 0;
1907 
1908 	ctlr->setmode = ata_sata_setmode;
1909 
1910 	/* enable PCI interrupt */
1911 	pci_write_config(dev, PCIR_COMMAND,
1912 			 pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
1913     }
1914     return 0;
1915 }
1916 
1917 static int
1918 ata_intel_allocate(device_t dev)
1919 {
1920     struct ata_channel *ch = device_get_softc(dev);
1921 
1922     /* setup the usual register normal pci style */
1923     if (ata_pci_allocate(dev))
1924 	return ENXIO;
1925 
1926     ch->flags |= ATA_ALWAYS_DMASTAT;
1927     return 0;
1928 }
1929 
1930 static void
1931 ata_intel_reset(device_t dev)
1932 {
1933     device_t parent = device_get_parent(dev);
1934     struct ata_pci_controller *ctlr = device_get_softc(parent);
1935     struct ata_channel *ch = device_get_softc(dev);
1936     int mask, timeout;
1937 
1938     /* ICH6 & ICH7 in compat mode has 4 SATA ports as master/slave on 2 ch's */
1939     if (ctlr->chip->cfg1) {
1940 	mask = (0x0005 << ch->unit);
1941     }
1942     else {
1943 	/* ICH5 in compat mode has SATA ports as master/slave on 1 channel */
1944 	if (pci_read_config(parent, 0x90, 1) & 0x04)
1945 	    mask = 0x0003;
1946 	else {
1947 	    mask = (0x0001 << ch->unit);
1948 	    /* XXX SOS should be in intel_allocate if we grow it */
1949 	    ch->flags |= ATA_NO_SLAVE;
1950 	}
1951     }
1952     pci_write_config(parent, 0x92, pci_read_config(parent, 0x92, 2) & ~mask, 2);
1953     DELAY(10);
1954     pci_write_config(parent, 0x92, pci_read_config(parent, 0x92, 2) | mask, 2);
1955 
1956     /* wait up to 1 sec for "connect well" */
1957     for (timeout = 0; timeout < 100 ; timeout++) {
1958 	if (((pci_read_config(parent, 0x92, 2) & (mask << 4)) == (mask << 4)) &&
1959 	    (ATA_IDX_INB(ch, ATA_STATUS) != 0xff))
1960 	    break;
1961 	ata_udelay(10000);
1962     }
1963     ata_generic_reset(dev);
1964 }
1965 
1966 static void
1967 ata_intel_old_setmode(device_t dev, int mode)
1968 {
1969     /* NOT YET */
1970 }
1971 
1972 static void
1973 ata_intel_new_setmode(device_t dev, int mode)
1974 {
1975     device_t gparent = GRANDPARENT(dev);
1976     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1977     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1978     struct ata_device *atadev = device_get_softc(dev);
1979     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1980     u_int32_t reg40 = pci_read_config(gparent, 0x40, 4);
1981     u_int8_t reg44 = pci_read_config(gparent, 0x44, 1);
1982     u_int8_t reg48 = pci_read_config(gparent, 0x48, 1);
1983     u_int16_t reg4a = pci_read_config(gparent, 0x4a, 2);
1984     u_int16_t reg54 = pci_read_config(gparent, 0x54, 2);
1985     u_int32_t mask40 = 0, new40 = 0;
1986     u_int8_t mask44 = 0, new44 = 0;
1987     int error;
1988     u_int8_t timings[] = { 0x00, 0x00, 0x10, 0x21, 0x23, 0x10, 0x21, 0x23,
1989 			   0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23 };
1990 			/* PIO0  PIO1  PIO2  PIO3  PIO4  WDMA0 WDMA1 WDMA2 */
1991 			/* UDMA0 UDMA1 UDMA2 UDMA3 UDMA4 UDMA5 UDMA6 */
1992 
1993     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
1994 
1995     if ( mode > ATA_UDMA2 && !(reg54 & (0x10 << devno))) {
1996 	ata_print_cable(dev, "controller");
1997 	mode = ATA_UDMA2;
1998     }
1999 
2000     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
2001 
2002     if (bootverbose)
2003 	device_printf(dev, "%ssetting %s on %s chip\n",
2004 		      (error) ? "FAILURE " : "",
2005 		      ata_mode2str(mode), ctlr->chip->text);
2006     if (error)
2007 	return;
2008 
2009     /*
2010      * reg48: 1 bit per (primary drive 0, primary drive 1, secondary
2011      *			 drive 0, secondary drive 1)
2012      *
2013      *		0 Disable Ultra DMA mode
2014      *		1 Enable Ultra DMA mode
2015      *
2016      * reg4a: 4 bits per (primary drive 0, primary drive 1, secondary
2017      *			  drive 0, secondary drive 1).
2018      * 		0000 UDMA mode 0
2019      *		0001 UDMA mode 1, 3, 5
2020      *		0010 UDMA mode 2, 4, reserved
2021      *		0011 reserved
2022      *		(top two bits for each drive reserved)
2023      */
2024 #if 0
2025     device_printf(dev,
2026 		  "regs before 40=%08x 44=%02x 48=%02x 4a=%04x 54=%04x\n",
2027 		  reg40, reg44, reg48 ,reg4a, reg54);
2028 #endif
2029     reg48 &= ~(0x0001 << devno);
2030     reg4a &= ~(0x3 << (devno << 2));
2031     if (mode >= ATA_UDMA0) {
2032 	reg48 |= 0x0001 << devno;
2033 	if (mode > ATA_UDMA0)
2034 	    reg4a |= (1 + !(mode & 0x01)) << (devno << 2);
2035     }
2036     pci_write_config(gparent, 0x48, reg48, 2);
2037     pci_write_config(gparent, 0x4a, reg4a, 2);
2038 
2039     /*
2040      * reg54:
2041      *
2042      *	32:20	reserved
2043      *	19:18	Secondary ATA signal mode
2044      *  17:16	Primary ATA signal mode
2045      *		00 = Normal (enabled)
2046      *		01 = Tri-state (disabled)
2047      *		10 = Drive Low (disabled)
2048      *		11 = Reserved
2049      *
2050      *  15	Secondary drive 1	- Base Clock
2051      *  14	Secondary drive 0	- Base Clock
2052      *  13	Primary drive 1		- Base Clock
2053      *	12	Primary drive 0		- Base Clock
2054      *		0 = Select 33 MHz clock
2055      *		1 = Select 100 Mhz clock
2056      *
2057      *	11	Reserved
2058      *	10	Vendor specific (set by BIOS?)
2059      *  09:08	Reserved
2060      *
2061      *  07	Secondary drive 1 	- Cable Type
2062      *  06	Secondary drive 0	- Cable Type
2063      *  05	Primary drive 1		- Cable Type
2064      *	04	Primary drive 0		- Cable Type
2065      *		0 = 40 Conductor
2066      *		1 = 80 Conductor (or high speed cable)
2067      *
2068      *  03	Secondary drive 1 	- Select 33/66 clock
2069      *  02	Secondary drive 0	- Select 33/66 clock
2070      *  01	Primary drive 1		- Select 33/66 clock
2071      *	00	Primary drive 0		- Select 33/66 clock
2072      *		0 = Select 33 MHz
2073      *		1 = Select 66 MHz
2074      *
2075      *		It is unclear what this should be set to when operating
2076      *		in 100MHz mode.
2077      *
2078      * NOTE: UDMA2 = 33 MHz
2079      *	     UDMA3 = 40 MHz (?) - unsupported
2080      *	     UDMA4 = 66 MHz
2081      *	     UDMA5 = 100 MHz
2082      *	     UDMA6 = 133 Mhz
2083      */
2084     reg54 |= 0x0400;	/* set vendor specific bit */
2085     reg54 &= ~((0x1 << devno) | (0x1000 << devno));
2086 
2087     if (mode >= ATA_UDMA5)
2088 	reg54 |= (0x1000 << devno);
2089     else if (mode >= ATA_UDMA3)	/* XXX should this be ATA_UDMA3 or 4? */
2090 	reg54 |= (0x1 << devno);
2091 
2092     pci_write_config(gparent, 0x54, reg54, 2);
2093 
2094     /*
2095      * Reg40 (32 bits... well, actually two 16 bit registers)
2096      *
2097      * Primary channel bits 15:00, Secondary channel bits 31:00.  Note
2098      * that slave timings are handled in register 44.
2099      *
2100      * 15	ATA Decode Enable (R/W) 1 = enable decoding of I/O ranges
2101      *
2102      * 14	Slave ATA Timing Register Enable (R/W)
2103      *
2104      * 13:12	IORDY Sample Mode
2105      *		00	PIO-0
2106      *		01	PIO-2, SW-2
2107      *		10	PIO-3, PIO-4, MW-1, MW-2
2108      *		11	Reserved
2109      *
2110      * 11:10	Reserved
2111      *
2112      * 09:08	Recovery Mode
2113      *		00	PIO-0, PIO-2, SW-2
2114      *		01	PIO-3, MW-1
2115      *		10	Reserved
2116      *		11	PIO-4, MW-2
2117      *
2118      * 07:04	Secondary Device Control Bits
2119      * 03:00	Primary Device Control Bits
2120      *
2121      *		bit 3	DMA Timing Enable
2122      *
2123      *		bit 2	Indicate Presence of ATA(1) or ATAPI(0) device
2124      *
2125      *		bit 1	Enable IORDY sample point capability for PIO
2126      *			xfers.  Always enabled for PIO4 and PIO3, enabled
2127      *			for PIO2 if indicated by the device, and otherwise
2128      *			probably should be 0.
2129      *
2130      *		bit 0	Fast Drive Timing Enable.  Enables faster then PIO-0
2131      *			timing modes.
2132      */
2133 
2134     /*
2135      * Modify reg40 according to the table
2136      */
2137     if (atadev->unit == ATA_MASTER) {
2138 	mask40 = 0x3300;
2139 	new40 = timings[ata_mode2idx(mode)] << 8;
2140     }
2141     else {
2142 	mask44 = 0x0f;
2143 	new44 = ((timings[ata_mode2idx(mode)] & 0x30) >> 2) |
2144 		(timings[ata_mode2idx(mode)] & 0x03);
2145     }
2146 
2147     /*
2148      * Slave ATA timing register enable
2149      */
2150     mask40 |= 0x4000;
2151     new40  |= 0x4000;
2152 
2153     /*
2154      * Device control bits 3:0 for master, 7:4 for slave.
2155      *
2156      * bit3 DMA Timing enable.
2157      * bit2 Indicate presence of ATA(1) or ATAPI(0) device, set accordingly
2158      * bit1 Enable IORDY sample point capability for PIO xfers.  Always
2159      *	    enabled for PIO4 and PIO3, enabled for PIO2 if indicated by
2160      *	    the device, and otherwise should be 0.
2161      * bit0 Fast Drive Timing Enable.  Enable faster then PIO-0 timing modes.
2162      *
2163      * Set to: 0 x 1 1
2164      */
2165 
2166     if (atadev->unit == ATA_MASTER) {
2167 	mask40 |= 0x0F;
2168 	new40 |= 0x03;
2169 	if (!ata_atapi(dev))
2170 	    new40 |= 0x04;
2171     } else {
2172 	mask40 |= 0xF0;
2173 	new40 |= 0x30;
2174 	if (!ata_atapi(dev))
2175 	    new40 |= 0x40;
2176     }
2177     /*
2178     reg40 &= ~0x00ff00ff;
2179     reg40 |= 0x40774077;
2180     */
2181 
2182     /*
2183      * Primary or Secondary controller
2184      */
2185     if (ch->unit) {
2186 	mask40 <<= 16;
2187 	new40 <<= 16;
2188 	mask44 <<= 4;
2189 	new44 <<= 4;
2190     }
2191     pci_write_config(gparent, 0x40, (reg40 & ~mask40) | new40, 4);
2192     pci_write_config(gparent, 0x44, (reg44 & ~mask44) | new44, 1);
2193 
2194 #if 0
2195     reg40 = pci_read_config(gparent, 0x40, 4);
2196     reg44 = pci_read_config(gparent, 0x44, 1);
2197     reg48 = pci_read_config(gparent, 0x48, 1);
2198     reg4a = pci_read_config(gparent, 0x4a, 2);
2199     reg54 = pci_read_config(gparent, 0x54, 2);
2200     device_printf(dev,
2201 		  "regs after 40=%08x 44=%02x 48=%02x 4a=%04x 54=%04x\n",
2202 		  reg40, reg44, reg48 ,reg4a, reg54);
2203 #endif
2204 
2205     atadev->mode = mode;
2206 }
2207 
2208 static int
2209 ata_intel_31244_allocate(device_t dev)
2210 {
2211     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2212     struct ata_channel *ch = device_get_softc(dev);
2213     int i;
2214     int ch_offset;
2215 
2216     ch_offset = 0x200 + ch->unit * 0x200;
2217 
2218     for (i = ATA_DATA; i < ATA_MAX_RES; i++)
2219 	ch->r_io[i].res = ctlr->r_res2;
2220 
2221     /* setup ATA registers */
2222     ch->r_io[ATA_DATA].offset = ch_offset + 0x00;
2223     ch->r_io[ATA_FEATURE].offset = ch_offset + 0x06;
2224     ch->r_io[ATA_COUNT].offset = ch_offset + 0x08;
2225     ch->r_io[ATA_SECTOR].offset = ch_offset + 0x0c;
2226     ch->r_io[ATA_CYL_LSB].offset = ch_offset + 0x10;
2227     ch->r_io[ATA_CYL_MSB].offset = ch_offset + 0x14;
2228     ch->r_io[ATA_DRIVE].offset = ch_offset + 0x18;
2229     ch->r_io[ATA_COMMAND].offset = ch_offset + 0x1d;
2230     ch->r_io[ATA_ERROR].offset = ch_offset + 0x04;
2231     ch->r_io[ATA_STATUS].offset = ch_offset + 0x1c;
2232     ch->r_io[ATA_ALTSTAT].offset = ch_offset + 0x28;
2233     ch->r_io[ATA_CONTROL].offset = ch_offset + 0x29;
2234 
2235     /* setup DMA registers */
2236     ch->r_io[ATA_SSTATUS].offset = ch_offset + 0x100;
2237     ch->r_io[ATA_SERROR].offset = ch_offset + 0x104;
2238     ch->r_io[ATA_SCONTROL].offset = ch_offset + 0x108;
2239 
2240     /* setup SATA registers */
2241     ch->r_io[ATA_BMCMD_PORT].offset = ch_offset + 0x70;
2242     ch->r_io[ATA_BMSTAT_PORT].offset = ch_offset + 0x72;
2243     ch->r_io[ATA_BMDTP_PORT].offset = ch_offset + 0x74;
2244 
2245     ch->flags |= ATA_NO_SLAVE;
2246     ata_pci_hw(dev);
2247     ch->hw.status = ata_intel_31244_status;
2248     ch->hw.command = ata_intel_31244_command;
2249 
2250     /* enable PHY state change interrupt */
2251     ATA_OUTL(ctlr->r_res2, 0x4,
2252 	     ATA_INL(ctlr->r_res2, 0x04) | (0x01 << (ch->unit << 3)));
2253     return 0;
2254 }
2255 
2256 static int
2257 ata_intel_31244_status(device_t dev)
2258 {
2259     /* do we have any PHY events ? */
2260     ata_sata_phy_check_events(dev);
2261 
2262     /* any drive action to take care of ? */
2263     return ata_pci_status(dev);
2264 }
2265 
2266 static int
2267 ata_intel_31244_command(struct ata_request *request)
2268 {
2269     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
2270     struct ata_device *atadev = device_get_softc(request->dev);
2271     u_int64_t lba;
2272 
2273     if (!(atadev->flags & ATA_D_48BIT_ACTIVE))
2274 	    return (ata_generic_command(request));
2275 
2276     lba = request->u.ata.lba;
2277     ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | atadev->unit);
2278     /* enable interrupt */
2279     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_4BIT);
2280     ATA_IDX_OUTW(ch, ATA_FEATURE, request->u.ata.feature);
2281     ATA_IDX_OUTW(ch, ATA_COUNT, request->u.ata.count);
2282     ATA_IDX_OUTW(ch, ATA_SECTOR, ((lba >> 16) & 0xff00) | (lba & 0x00ff));
2283     ATA_IDX_OUTW(ch, ATA_CYL_LSB, ((lba >> 24) & 0xff00) |
2284 				  ((lba >> 8) & 0x00ff));
2285     ATA_IDX_OUTW(ch, ATA_CYL_MSB, ((lba >> 32) & 0xff00) |
2286 				  ((lba >> 16) & 0x00ff));
2287 
2288     /* issue command to controller */
2289     ATA_IDX_OUTB(ch, ATA_COMMAND, request->u.ata.command);
2290 
2291     return 0;
2292 }
2293 
2294 static void
2295 ata_intel_31244_reset(device_t dev)
2296 {
2297     if (ata_sata_phy_reset(dev))
2298 	ata_generic_reset(dev);
2299 }
2300 
2301 
2302 /*
2303  * Integrated Technology Express Inc. (ITE) chipset support functions
2304  */
2305 int
2306 ata_ite_ident(device_t dev)
2307 {
2308     struct ata_pci_controller *ctlr = device_get_softc(dev);
2309     struct ata_chip_id *idx;
2310     static struct ata_chip_id ids[] =
2311     {{ ATA_IT8212F, 0x00, 0x00, 0x00, ATA_UDMA6, "IT8212F" },
2312      { ATA_IT8211F, 0x00, 0x00, 0x00, ATA_UDMA6, "IT8211F" },
2313      { 0, 0, 0, 0, 0, 0}};
2314     char buffer[64];
2315 
2316     if (!(idx = ata_match_chip(dev, ids)))
2317 	return ENXIO;
2318 
2319     ksprintf(buffer, "ITE %s %s controller",
2320 	    idx->text, ata_mode2str(idx->max_dma));
2321     device_set_desc_copy(dev, buffer);
2322     ctlr->chip = idx;
2323     ctlr->chipinit = ata_ite_chipinit;
2324     return 0;
2325 }
2326 
2327 static int
2328 ata_ite_chipinit(device_t dev)
2329 {
2330     struct ata_pci_controller *ctlr = device_get_softc(dev);
2331 
2332     if (ata_setup_interrupt(dev))
2333 	return ENXIO;
2334 
2335     ctlr->setmode = ata_ite_setmode;
2336 
2337     /* set PCI mode and 66Mhz reference clock */
2338     pci_write_config(dev, 0x50, pci_read_config(dev, 0x50, 1) & ~0x83, 1);
2339 
2340     /* set default active & recover timings */
2341     pci_write_config(dev, 0x54, 0x31, 1);
2342     pci_write_config(dev, 0x56, 0x31, 1);
2343     return 0;
2344 }
2345 
2346 static void
2347 ata_ite_setmode(device_t dev, int mode)
2348 {
2349     device_t gparent = GRANDPARENT(dev);
2350     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
2351     struct ata_device *atadev = device_get_softc(dev);
2352     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
2353     int error;
2354 
2355     /* correct the mode for what the HW supports */
2356     mode = ata_limit_mode(dev, mode, ATA_UDMA6);
2357 
2358     /* check the CBLID bits for 80 conductor cable detection */
2359     if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x40, 2) &
2360 			     (ch->unit ? (1<<3) : (1<<2)))) {
2361 	ata_print_cable(dev, "controller");
2362 	mode = ATA_UDMA2;
2363     }
2364 
2365     /* set the wanted mode on the device */
2366     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
2367 
2368     if (bootverbose)
2369 	device_printf(dev, "%s setting %s on ITE8212F chip\n",
2370 		      (error) ? "failed" : "success", ata_mode2str(mode));
2371 
2372     /* if the device accepted the mode change, setup the HW accordingly */
2373     if (!error) {
2374 	if (mode >= ATA_UDMA0) {
2375 	    u_int8_t udmatiming[] =
2376 		{ 0x44, 0x42, 0x31, 0x21, 0x11, 0xa2, 0x91 };
2377 
2378 	    /* enable UDMA mode */
2379 	    pci_write_config(gparent, 0x50,
2380 			     pci_read_config(gparent, 0x50, 1) &
2381 			     ~(1 << (devno + 3)), 1);
2382 
2383 	    /* set UDMA timing */
2384 	    pci_write_config(gparent,
2385 			     0x56 + (ch->unit << 2) + ATA_DEV(atadev->unit),
2386 			     udmatiming[mode & ATA_MODE_MASK], 1);
2387 	}
2388 	else {
2389 	    u_int8_t chtiming[] =
2390 		{ 0xaa, 0xa3, 0xa1, 0x33, 0x31, 0x88, 0x32, 0x31 };
2391 
2392 	    /* disable UDMA mode */
2393 	    pci_write_config(gparent, 0x50,
2394 			     pci_read_config(gparent, 0x50, 1) |
2395 			     (1 << (devno + 3)), 1);
2396 
2397 	    /* set active and recover timing (shared between master & slave) */
2398 	    if (pci_read_config(gparent, 0x54 + (ch->unit << 2), 1) <
2399 		chtiming[ata_mode2idx(mode)])
2400 		pci_write_config(gparent, 0x54 + (ch->unit << 2),
2401 				 chtiming[ata_mode2idx(mode)], 1);
2402 	}
2403 	atadev->mode = mode;
2404     }
2405 }
2406 
2407 
2408 /*
2409  * JMicron chipset support functions
2410  */
2411 int
2412 ata_jmicron_ident(device_t dev)
2413 {
2414     struct ata_pci_controller *ctlr = device_get_softc(dev);
2415     struct ata_chip_id *idx;
2416     static struct ata_chip_id ids[] =
2417     {{ ATA_JMB360, 0, 1, 0, ATA_SA300, "JMB360" },
2418      { ATA_JMB361, 0, 1, 1, ATA_SA300, "JMB361" },
2419      { ATA_JMB363, 0, 2, 1, ATA_SA300, "JMB363" },
2420      { ATA_JMB365, 0, 1, 2, ATA_SA300, "JMB365" },
2421      { ATA_JMB366, 0, 2, 2, ATA_SA300, "JMB366" },
2422      { ATA_JMB368, 0, 0, 1, ATA_UDMA6, "JMB368" },
2423      { 0, 0, 0, 0, 0, 0}};
2424     char buffer[64];
2425 
2426     if (!(idx = ata_match_chip(dev, ids)))
2427         return ENXIO;
2428 
2429     if ((pci_read_config(dev, 0xdf, 1) & 0x40) &&
2430 	(pci_get_function(dev) == (pci_read_config(dev, 0x40, 1) & 0x02 >> 1)))
2431 	ksnprintf(buffer, sizeof(buffer), "JMicron %s %s controller",
2432 		idx->text, ata_mode2str(ATA_UDMA6));
2433     else
2434 	ksnprintf(buffer, sizeof(buffer), "JMicron %s %s controller",
2435 		idx->text, ata_mode2str(idx->max_dma));
2436     device_set_desc_copy(dev, buffer);
2437     ctlr->chip = idx;
2438     ctlr->chipinit = ata_jmicron_chipinit;
2439     return 0;
2440 }
2441 
2442 static int
2443 ata_jmicron_chipinit(device_t dev)
2444 {
2445     struct ata_pci_controller *ctlr = device_get_softc(dev);
2446     int error;
2447 
2448     if (ata_setup_interrupt(dev))
2449 	return ENXIO;
2450 
2451     /* do we have multiple PCI functions ? */
2452     if (pci_read_config(dev, 0xdf, 1) & 0x40) {
2453 	/* are we on the AHCI part ? */
2454 	if (ata_ahci_chipinit(dev) != ENXIO)
2455 	    return 0;
2456 
2457 	/* otherwise we are on the PATA part */
2458 	ctlr->allocate = ata_pci_allocate;
2459 	ctlr->reset = ata_generic_reset;
2460 	ctlr->dmainit = ata_pci_dmainit;
2461 	ctlr->setmode = ata_jmicron_setmode;
2462 	ctlr->channels = ctlr->chip->cfg2;
2463     }
2464     else {
2465 	/* set controller configuration to a combined setup we support */
2466 	pci_write_config(dev, 0x40, 0x80c0a131, 4);
2467 	pci_write_config(dev, 0x80, 0x01200000, 4);
2468 
2469 	if ((error = ata_ahci_chipinit(dev)))
2470 	    return error;
2471 
2472 	ctlr->allocate = ata_jmicron_allocate;
2473 	ctlr->reset = ata_jmicron_reset;
2474 	ctlr->dmainit = ata_jmicron_dmainit;
2475 	ctlr->setmode = ata_jmicron_setmode;
2476 
2477 	/* set the number of HW channels */
2478 	ctlr->channels = ctlr->chip->cfg1 + ctlr->chip->cfg2;
2479     }
2480     return 0;
2481 }
2482 
2483 static int
2484 ata_jmicron_allocate(device_t dev)
2485 {
2486     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2487     struct ata_channel *ch = device_get_softc(dev);
2488     int error;
2489 
2490     if (ch->unit >= ctlr->chip->cfg1) {
2491 	ch->unit -= ctlr->chip->cfg1;
2492 	error = ata_pci_allocate(dev);
2493 	ch->unit += ctlr->chip->cfg1;
2494     }
2495     else
2496 	error = ata_ahci_allocate(dev);
2497     return error;
2498 }
2499 
2500 static void
2501 ata_jmicron_reset(device_t dev)
2502 {
2503     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2504     struct ata_channel *ch = device_get_softc(dev);
2505 
2506     if (ch->unit >= ctlr->chip->cfg1)
2507 	ata_generic_reset(dev);
2508     else
2509 	ata_ahci_reset(dev);
2510 }
2511 
2512 static void
2513 ata_jmicron_dmainit(device_t dev)
2514 {
2515     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2516     struct ata_channel *ch = device_get_softc(dev);
2517 
2518     if (ch->unit >= ctlr->chip->cfg1)
2519 	ata_pci_dmainit(dev);
2520     else
2521 	ata_ahci_dmainit(dev);
2522 }
2523 
2524 static void
2525 ata_jmicron_setmode(device_t dev, int mode)
2526 {
2527     struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev));
2528     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
2529 
2530     if (pci_read_config(dev, 0xdf, 1) & 0x40 || ch->unit >= ctlr->chip->cfg1) {
2531 	struct ata_device *atadev = device_get_softc(dev);
2532 
2533 	/* check for 80pin cable present */
2534 	if (pci_read_config(dev, 0x40, 1) & 0x08)
2535 	    mode = ata_limit_mode(dev, mode, ATA_UDMA2);
2536 	else
2537 	    mode = ata_limit_mode(dev, mode, ATA_UDMA6);
2538 
2539 	if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
2540 	    atadev->mode = mode;
2541     }
2542     else
2543 	ata_sata_setmode(dev, mode);
2544 }
2545 
2546 
2547 /*
2548  * Marvell chipset support functions
2549  */
2550 #define ATA_MV_HOST_BASE(ch) \
2551 	((ch->unit & 3) * 0x0100) + (ch->unit > 3 ? 0x30000 : 0x20000)
2552 #define ATA_MV_EDMA_BASE(ch) \
2553 	((ch->unit & 3) * 0x2000) + (ch->unit > 3 ? 0x30000 : 0x20000)
2554 
2555 struct ata_marvell_response {
2556     u_int16_t   tag;
2557     u_int8_t    edma_status;
2558     u_int8_t    dev_status;
2559     u_int32_t   timestamp;
2560 };
2561 
2562 struct ata_marvell_dma_prdentry {
2563     u_int32_t addrlo;
2564     u_int32_t count;
2565     u_int32_t addrhi;
2566     u_int32_t reserved;
2567 };
2568 
2569 int
2570 ata_marvell_ident(device_t dev)
2571 {
2572     struct ata_pci_controller *ctlr = device_get_softc(dev);
2573     struct ata_chip_id *idx;
2574     static struct ata_chip_id ids[] =
2575     {{ ATA_M88SX5040, 0, 4, MV50XX, ATA_SA150, "88SX5040" },
2576      { ATA_M88SX5041, 0, 4, MV50XX, ATA_SA150, "88SX5041" },
2577      { ATA_M88SX5080, 0, 8, MV50XX, ATA_SA150, "88SX5080" },
2578      { ATA_M88SX5081, 0, 8, MV50XX, ATA_SA150, "88SX5081" },
2579      { ATA_M88SX6041, 0, 4, MV60XX, ATA_SA300, "88SX6041" },
2580      { ATA_M88SX6081, 0, 8, MV60XX, ATA_SA300, "88SX6081" },
2581      { ATA_M88SX6101, 0, 1, MV61XX, ATA_UDMA6, "88SX6101" },
2582      { ATA_M88SX6145, 0, 2, MV61XX, ATA_UDMA6, "88SX6145" },
2583      { 0, 0, 0, 0, 0, 0}};
2584     char buffer[64];
2585 
2586     if (!(idx = ata_match_chip(dev, ids)))
2587 	return ENXIO;
2588 
2589     ksprintf(buffer, "Marvell %s %s controller",
2590 	    idx->text, ata_mode2str(idx->max_dma));
2591     device_set_desc_copy(dev, buffer);
2592     ctlr->chip = idx;
2593     switch (ctlr->chip->cfg2) {
2594     case MV50XX:
2595     case MV60XX:
2596 	ctlr->chipinit = ata_marvell_edma_chipinit;
2597 	break;
2598     case MV61XX:
2599 	ctlr->chipinit = ata_marvell_pata_chipinit;
2600 	break;
2601     }
2602     return 0;
2603 }
2604 
2605 static int
2606 ata_marvell_pata_chipinit(device_t dev)
2607 {
2608     struct ata_pci_controller *ctlr = device_get_softc(dev);
2609 
2610     if (ata_setup_interrupt(dev))
2611 	return ENXIO;
2612 
2613     ctlr->allocate = ata_marvell_pata_allocate;
2614     ctlr->setmode = ata_marvell_pata_setmode;
2615     ctlr->channels = ctlr->chip->cfg1;
2616     return 0;
2617 }
2618 
2619 static int
2620 ata_marvell_pata_allocate(device_t dev)
2621 {
2622     struct ata_channel *ch = device_get_softc(dev);
2623 
2624     /* setup the usual register normal pci style */
2625     if (ata_pci_allocate(dev))
2626 	return ENXIO;
2627 
2628     /* dont use 32 bit PIO transfers */
2629     ch->flags |= ATA_USE_16BIT;
2630 
2631     return 0;
2632 }
2633 
2634 static void
2635 ata_marvell_pata_setmode(device_t dev, int mode)
2636 {
2637     device_t gparent = GRANDPARENT(dev);
2638     struct ata_pci_controller *ctlr = device_get_softc(gparent);
2639     struct ata_device *atadev = device_get_softc(dev);
2640 
2641     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
2642     mode = ata_check_80pin(dev, mode);
2643     if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
2644 	atadev->mode = mode;
2645 }
2646 
2647 static int
2648 ata_marvell_edma_chipinit(device_t dev)
2649 {
2650     struct ata_pci_controller *ctlr = device_get_softc(dev);
2651 
2652     if (ata_setup_interrupt(dev))
2653 	return ENXIO;
2654 
2655     ctlr->r_type1 = SYS_RES_MEMORY;
2656     ctlr->r_rid1 = PCIR_BAR(0);
2657     if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
2658 						&ctlr->r_rid1, RF_ACTIVE)))
2659 	return ENXIO;
2660 
2661     /* mask all host controller interrupts */
2662     ATA_OUTL(ctlr->r_res1, 0x01d64, 0x00000000);
2663 
2664     /* mask all PCI interrupts */
2665     ATA_OUTL(ctlr->r_res1, 0x01d5c, 0x00000000);
2666 
2667     ctlr->allocate = ata_marvell_edma_allocate;
2668     ctlr->reset = ata_marvell_edma_reset;
2669     ctlr->dmainit = ata_marvell_edma_dmainit;
2670     ctlr->setmode = ata_sata_setmode;
2671     ctlr->channels = ctlr->chip->cfg1;
2672 
2673     /* clear host controller interrupts */
2674     ATA_OUTL(ctlr->r_res1, 0x20014, 0x00000000);
2675     if (ctlr->chip->cfg1 > 4)
2676 	ATA_OUTL(ctlr->r_res1, 0x30014, 0x00000000);
2677 
2678     /* clear PCI interrupts */
2679     ATA_OUTL(ctlr->r_res1, 0x01d58, 0x00000000);
2680 
2681     /* unmask PCI interrupts we want */
2682     ATA_OUTL(ctlr->r_res1, 0x01d5c, 0x007fffff);
2683 
2684     /* unmask host controller interrupts we want */
2685     ATA_OUTL(ctlr->r_res1, 0x01d64, 0x000000ff/*HC0*/ | 0x0001fe00/*HC1*/ |
2686 	     /*(1<<19) | (1<<20) | (1<<21) |*/(1<<22) | (1<<24) | (0x7f << 25));
2687 
2688     /* enable PCI interrupt */
2689     pci_write_config(dev, PCIR_COMMAND,
2690 		     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
2691     return 0;
2692 }
2693 
2694 static int
2695 ata_marvell_edma_allocate(device_t dev)
2696 {
2697     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2698     struct ata_channel *ch = device_get_softc(dev);
2699     u_int64_t work = ch->dma->work_bus;
2700     int i;
2701 
2702     /* clear work area */
2703     bzero(ch->dma->work, 1024+256);
2704 
2705     /* set legacy ATA resources */
2706     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
2707 	ch->r_io[i].res = ctlr->r_res1;
2708 	ch->r_io[i].offset = 0x02100 + (i << 2) + ATA_MV_EDMA_BASE(ch);
2709     }
2710     ch->r_io[ATA_CONTROL].res = ctlr->r_res1;
2711     ch->r_io[ATA_CONTROL].offset = 0x02120 + ATA_MV_EDMA_BASE(ch);
2712     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res1;
2713     ata_default_registers(dev);
2714 
2715     /* set SATA resources */
2716     switch (ctlr->chip->cfg2) {
2717     case MV50XX:
2718 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res1;
2719 	ch->r_io[ATA_SSTATUS].offset =  0x00100 + ATA_MV_HOST_BASE(ch);
2720 	ch->r_io[ATA_SERROR].res = ctlr->r_res1;
2721 	ch->r_io[ATA_SERROR].offset = 0x00104 + ATA_MV_HOST_BASE(ch);
2722 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res1;
2723 	ch->r_io[ATA_SCONTROL].offset = 0x00108 + ATA_MV_HOST_BASE(ch);
2724 	break;
2725     case MV60XX:
2726 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res1;
2727 	ch->r_io[ATA_SSTATUS].offset =  0x02300 + ATA_MV_EDMA_BASE(ch);
2728 	ch->r_io[ATA_SERROR].res = ctlr->r_res1;
2729 	ch->r_io[ATA_SERROR].offset = 0x02304 + ATA_MV_EDMA_BASE(ch);
2730 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res1;
2731 	ch->r_io[ATA_SCONTROL].offset = 0x02308 + ATA_MV_EDMA_BASE(ch);
2732 	ch->r_io[ATA_SACTIVE].res = ctlr->r_res1;
2733 	ch->r_io[ATA_SACTIVE].offset = 0x02350 + ATA_MV_EDMA_BASE(ch);
2734 	break;
2735     }
2736 
2737     ch->flags |= ATA_NO_SLAVE;
2738     ch->flags |= ATA_USE_16BIT; /* XXX SOS needed ? */
2739     ata_generic_hw(dev);
2740     ch->hw.begin_transaction = ata_marvell_edma_begin_transaction;
2741     ch->hw.end_transaction = ata_marvell_edma_end_transaction;
2742     ch->hw.status = ata_marvell_edma_status;
2743 
2744     /* disable the EDMA machinery */
2745     ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000002);
2746     DELAY(100000);       /* SOS should poll for disabled */
2747 
2748     /* set configuration to non-queued 128b read transfers stop on error */
2749     ATA_OUTL(ctlr->r_res1, 0x02000 + ATA_MV_EDMA_BASE(ch), (1<<11) | (1<<13));
2750 
2751     /* request queue base high */
2752     ATA_OUTL(ctlr->r_res1, 0x02010 + ATA_MV_EDMA_BASE(ch), work >> 32);
2753 
2754     /* request queue in ptr */
2755     ATA_OUTL(ctlr->r_res1, 0x02014 + ATA_MV_EDMA_BASE(ch), work & 0xffffffff);
2756 
2757     /* request queue out ptr */
2758     ATA_OUTL(ctlr->r_res1, 0x02018 + ATA_MV_EDMA_BASE(ch), 0x0);
2759 
2760     /* response queue base high */
2761     work += 1024;
2762     ATA_OUTL(ctlr->r_res1, 0x0201c + ATA_MV_EDMA_BASE(ch), work >> 32);
2763 
2764     /* response queue in ptr */
2765     ATA_OUTL(ctlr->r_res1, 0x02020 + ATA_MV_EDMA_BASE(ch), 0x0);
2766 
2767     /* response queue out ptr */
2768     ATA_OUTL(ctlr->r_res1, 0x02024 + ATA_MV_EDMA_BASE(ch), work & 0xffffffff);
2769 
2770     /* clear SATA error register */
2771     ATA_IDX_OUTL(ch, ATA_SERROR, ATA_IDX_INL(ch, ATA_SERROR));
2772 
2773     /* clear any outstanding error interrupts */
2774     ATA_OUTL(ctlr->r_res1, 0x02008 + ATA_MV_EDMA_BASE(ch), 0x0);
2775 
2776     /* unmask all error interrupts */
2777     ATA_OUTL(ctlr->r_res1, 0x0200c + ATA_MV_EDMA_BASE(ch), ~0x0);
2778 
2779     /* enable EDMA machinery */
2780     ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000001);
2781     return 0;
2782 }
2783 
2784 static int
2785 ata_marvell_edma_status(device_t dev)
2786 {
2787     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2788     struct ata_channel *ch = device_get_softc(dev);
2789     u_int32_t cause = ATA_INL(ctlr->r_res1, 0x01d60);
2790     int shift = (ch->unit << 1) + (ch->unit > 3);
2791 
2792     if (cause & (1 << shift)) {
2793 
2794 	/* clear interrupt(s) */
2795 	ATA_OUTL(ctlr->r_res1, 0x02008 + ATA_MV_EDMA_BASE(ch), 0x0);
2796 
2797 	/* do we have any PHY events ? */
2798 	ata_sata_phy_check_events(dev);
2799     }
2800 
2801     /* do we have any device action ? */
2802     return (cause & (2 << shift));
2803 }
2804 
2805 /* must be called with ATA channel locked and state_mtx held */
2806 static int
2807 ata_marvell_edma_begin_transaction(struct ata_request *request)
2808 {
2809     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
2810     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
2811     u_int32_t req_in;
2812     u_int8_t *bytep;
2813     u_int16_t *wordp;
2814     u_int32_t *quadp;
2815     int i, tag = 0x07;
2816     int dummy, error, slot;
2817 
2818     /* only DMA R/W goes through the EMDA machine */
2819     if (request->u.ata.command != ATA_READ_DMA &&
2820 	request->u.ata.command != ATA_WRITE_DMA) {
2821 
2822 	/* disable the EDMA machinery */
2823 	if (ATA_INL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch)) & 0x00000001)
2824 	    ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000002);
2825 	return ata_begin_transaction(request);
2826     }
2827 
2828     /* check for 48 bit access and convert if needed */
2829     ata_modify_if_48bit(request);
2830 
2831     /* check sanity, setup SG list and DMA engine */
2832     if ((error = ch->dma->load(ch->dev, request->data, request->bytecount,
2833 			       request->flags & ATA_R_READ, ch->dma->sg,
2834 			       &dummy))) {
2835 	device_printf(request->dev, "setting up DMA failed\n");
2836 	request->result = error;
2837 	return ATA_OP_FINISHED;
2838     }
2839 
2840     /* get next free request queue slot */
2841     req_in = ATA_INL(ctlr->r_res1, 0x02014 + ATA_MV_EDMA_BASE(ch));
2842     slot = (((req_in & ~0xfffffc00) >> 5) + 0) & 0x1f;
2843     bytep = (u_int8_t *)(ch->dma->work);
2844     bytep += (slot << 5);
2845     wordp = (u_int16_t *)bytep;
2846     quadp = (u_int32_t *)bytep;
2847 
2848     /* fill in this request */
2849     quadp[0] = (long)ch->dma->sg_bus & 0xffffffff;
2850     quadp[1] = (u_int64_t)ch->dma->sg_bus >> 32;
2851     wordp[4] = (request->flags & ATA_R_READ ? 0x01 : 0x00) | (tag<<1);
2852 
2853     i = 10;
2854     bytep[i++] = (request->u.ata.count >> 8) & 0xff;
2855     bytep[i++] = 0x10 | ATA_COUNT;
2856     bytep[i++] = request->u.ata.count & 0xff;
2857     bytep[i++] = 0x10 | ATA_COUNT;
2858 
2859     bytep[i++] = (request->u.ata.lba >> 24) & 0xff;
2860     bytep[i++] = 0x10 | ATA_SECTOR;
2861     bytep[i++] = request->u.ata.lba & 0xff;
2862     bytep[i++] = 0x10 | ATA_SECTOR;
2863 
2864     bytep[i++] = (request->u.ata.lba >> 32) & 0xff;
2865     bytep[i++] = 0x10 | ATA_CYL_LSB;
2866     bytep[i++] = (request->u.ata.lba >> 8) & 0xff;
2867     bytep[i++] = 0x10 | ATA_CYL_LSB;
2868 
2869     bytep[i++] = (request->u.ata.lba >> 40) & 0xff;
2870     bytep[i++] = 0x10 | ATA_CYL_MSB;
2871     bytep[i++] = (request->u.ata.lba >> 16) & 0xff;
2872     bytep[i++] = 0x10 | ATA_CYL_MSB;
2873 
2874     bytep[i++] = ATA_D_LBA | ATA_D_IBM | ((request->u.ata.lba >> 24) & 0xf);
2875     bytep[i++] = 0x10 | ATA_DRIVE;
2876 
2877     bytep[i++] = request->u.ata.command;
2878     bytep[i++] = 0x90 | ATA_COMMAND;
2879 
2880     /* enable EDMA machinery if needed */
2881     if (!(ATA_INL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch)) & 0x00000001)) {
2882 	ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000001);
2883 	while (!(ATA_INL(ctlr->r_res1,
2884 			 0x02028 + ATA_MV_EDMA_BASE(ch)) & 0x00000001))
2885 	    DELAY(10);
2886     }
2887 
2888     /* tell EDMA it has a new request */
2889     slot = (((req_in & ~0xfffffc00) >> 5) + 1) & 0x1f;
2890     req_in &= 0xfffffc00;
2891     req_in += (slot << 5);
2892     ATA_OUTL(ctlr->r_res1, 0x02014 + ATA_MV_EDMA_BASE(ch), req_in);
2893 
2894     return ATA_OP_CONTINUES;
2895 }
2896 
2897 /* must be called with ATA channel locked and state_mtx held */
2898 static int
2899 ata_marvell_edma_end_transaction(struct ata_request *request)
2900 {
2901     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
2902     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
2903     int offset = (ch->unit > 3 ? 0x30014 : 0x20014);
2904     u_int32_t icr = ATA_INL(ctlr->r_res1, offset);
2905     int res;
2906 
2907     /* EDMA interrupt */
2908     if ((icr & (0x0001 << (ch->unit & 3)))) {
2909 	struct ata_marvell_response *response;
2910 	u_int32_t rsp_in, rsp_out;
2911 	int slot;
2912 
2913 	/* stop timeout */
2914 	callout_stop(&request->callout);
2915 
2916 	/* get response ptr's */
2917 	rsp_in = ATA_INL(ctlr->r_res1, 0x02020 + ATA_MV_EDMA_BASE(ch));
2918 	rsp_out = ATA_INL(ctlr->r_res1, 0x02024 + ATA_MV_EDMA_BASE(ch));
2919 	slot = (((rsp_in & ~0xffffff00) >> 3)) & 0x1f;
2920 	rsp_out &= 0xffffff00;
2921 	rsp_out += (slot << 3);
2922 	response = (struct ata_marvell_response *)
2923 		   (ch->dma->work + 1024 + (slot << 3));
2924 
2925 	/* record status for this request */
2926 	request->status = response->dev_status;
2927 	request->error = 0;
2928 
2929 	/* ack response */
2930 	ATA_OUTL(ctlr->r_res1, 0x02024 + ATA_MV_EDMA_BASE(ch), rsp_out);
2931 
2932 	/* update progress */
2933 	if (!(request->status & ATA_S_ERROR) &&
2934 	    !(request->flags & ATA_R_TIMEOUT))
2935 	    request->donecount = request->bytecount;
2936 
2937 	/* unload SG list */
2938 	ch->dma->unload(ch->dev);
2939 
2940 	res = ATA_OP_FINISHED;
2941     }
2942 
2943     /* legacy ATA interrupt */
2944     else {
2945 	res = ata_end_transaction(request);
2946     }
2947 
2948     /* ack interrupt */
2949     ATA_OUTL(ctlr->r_res1, offset, ~(icr & (0x0101 << (ch->unit & 3))));
2950     return res;
2951 }
2952 
2953 static void
2954 ata_marvell_edma_reset(device_t dev)
2955 {
2956     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2957     struct ata_channel *ch = device_get_softc(dev);
2958 
2959     /* disable the EDMA machinery */
2960     ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000002);
2961     while ((ATA_INL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch)) & 0x00000001))
2962 	DELAY(10);
2963 
2964     /* clear SATA error register */
2965     ATA_IDX_OUTL(ch, ATA_SERROR, ATA_IDX_INL(ch, ATA_SERROR));
2966 
2967     /* clear any outstanding error interrupts */
2968     ATA_OUTL(ctlr->r_res1, 0x02008 + ATA_MV_EDMA_BASE(ch), 0x0);
2969 
2970     /* unmask all error interrupts */
2971     ATA_OUTL(ctlr->r_res1, 0x0200c + ATA_MV_EDMA_BASE(ch), ~0x0);
2972 
2973     /* enable channel and test for devices */
2974     if (ata_sata_phy_reset(dev))
2975 	ata_generic_reset(dev);
2976 
2977     /* enable EDMA machinery */
2978     ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000001);
2979 }
2980 
2981 static void
2982 ata_marvell_edma_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs,
2983 			   int error)
2984 {
2985     struct ata_dmasetprd_args *args = xsc;
2986     struct ata_marvell_dma_prdentry *prd = args->dmatab;
2987     int i;
2988 
2989     if ((args->error = error))
2990 	return;
2991 
2992     for (i = 0; i < nsegs; i++) {
2993 	prd[i].addrlo = htole32(segs[i].ds_addr);
2994 	prd[i].count = htole32(segs[i].ds_len);
2995 	prd[i].addrhi = htole32((u_int64_t)segs[i].ds_addr >> 32);
2996     }
2997     prd[i - 1].count |= htole32(ATA_DMA_EOT);
2998 }
2999 
3000 static void
3001 ata_marvell_edma_dmainit(device_t dev)
3002 {
3003     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3004     struct ata_channel *ch = device_get_softc(dev);
3005 
3006     ata_dmainit(dev);
3007     if (ch->dma) {
3008 	/* note start and stop are not used here */
3009 	ch->dma->setprd = ata_marvell_edma_dmasetprd;
3010 
3011 	if (ATA_INL(ctlr->r_res1, 0x00d00) & 0x00000004)
3012 	    ch->dma->max_address = BUS_SPACE_MAXADDR;
3013 
3014 	/* chip does not reliably do 64K DMA transfers */
3015 	ch->dma->max_iosize = 126 * DEV_BSIZE;
3016     }
3017 }
3018 
3019 
3020 /*
3021  * National chipset support functions
3022  */
3023 int
3024 ata_national_ident(device_t dev)
3025 {
3026     struct ata_pci_controller *ctlr = device_get_softc(dev);
3027 
3028     /* this chip is a clone of the Cyrix chip, bugs and all */
3029     if (pci_get_devid(dev) == ATA_SC1100) {
3030 	device_set_desc(dev, "National Geode SC1100 ATA33 controller");
3031 	ctlr->chipinit = ata_national_chipinit;
3032 	return 0;
3033     }
3034     return ENXIO;
3035 }
3036 
3037 static int
3038 ata_national_chipinit(device_t dev)
3039 {
3040     struct ata_pci_controller *ctlr = device_get_softc(dev);
3041 
3042     if (ata_setup_interrupt(dev))
3043 	return ENXIO;
3044 
3045     ctlr->setmode = ata_national_setmode;
3046     return 0;
3047 }
3048 
3049 static void
3050 ata_national_setmode(device_t dev, int mode)
3051 {
3052     device_t gparent = GRANDPARENT(dev);
3053     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
3054     struct ata_device *atadev = device_get_softc(dev);
3055     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
3056     u_int32_t piotiming[] =
3057 	{ 0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010,
3058 	  0x00803020, 0x20102010, 0x00100010,
3059 	  0x00100010, 0x00100010, 0x00100010 };
3060     u_int32_t dmatiming[] = { 0x80077771, 0x80012121, 0x80002020 };
3061     u_int32_t udmatiming[] = { 0x80921250, 0x80911140, 0x80911030 };
3062     int error;
3063 
3064     ch->dma->alignment = 16;
3065     ch->dma->max_iosize = 126 * DEV_BSIZE;
3066 
3067     mode = ata_limit_mode(dev, mode, ATA_UDMA2);
3068 
3069     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
3070 
3071     if (bootverbose)
3072 	device_printf(dev, "%s setting %s on National chip\n",
3073 		      (error) ? "failed" : "success", ata_mode2str(mode));
3074     if (!error) {
3075 	if (mode >= ATA_UDMA0) {
3076 	    pci_write_config(gparent, 0x44 + (devno << 3),
3077 			     udmatiming[mode & ATA_MODE_MASK], 4);
3078 	}
3079 	else if (mode >= ATA_WDMA0) {
3080 	    pci_write_config(gparent, 0x44 + (devno << 3),
3081 			     dmatiming[mode & ATA_MODE_MASK], 4);
3082 	}
3083 	else {
3084 	    pci_write_config(gparent, 0x44 + (devno << 3),
3085 			     pci_read_config(gparent, 0x44 + (devno << 3), 4) |
3086 			     0x80000000, 4);
3087 	}
3088 	pci_write_config(gparent, 0x40 + (devno << 3),
3089 			 piotiming[ata_mode2idx(mode)], 4);
3090 	atadev->mode = mode;
3091     }
3092 }
3093 
3094 /*
3095  * NetCell chipset support functions
3096  */
3097 int
3098 ata_netcell_ident(device_t dev)
3099 {
3100     struct ata_pci_controller *ctlr = device_get_softc(dev);
3101 
3102     if (pci_get_devid(dev) == ATA_NETCELL_SR) {
3103 	device_set_desc(dev, "Netcell SyncRAID SR3000/5000 RAID Controller");
3104 	ctlr->chipinit = ata_netcell_chipinit;
3105 	return 0;
3106     }
3107     return ENXIO;
3108 }
3109 
3110 static int
3111 ata_netcell_chipinit(device_t dev)
3112 {
3113     struct ata_pci_controller *ctlr = device_get_softc(dev);
3114 
3115     if (ata_generic_chipinit(dev))
3116 	return ENXIO;
3117 
3118     ctlr->allocate = ata_netcell_allocate;
3119     return 0;
3120 }
3121 
3122 static int
3123 ata_netcell_allocate(device_t dev)
3124 {
3125     struct ata_channel *ch = device_get_softc(dev);
3126 
3127     /* setup the usual register normal pci style */
3128     if (ata_pci_allocate(dev))
3129 	return ENXIO;
3130 
3131     /* the NetCell only supports 16 bit PIO transfers */
3132     ch->flags |= ATA_USE_16BIT;
3133 
3134     return 0;
3135 }
3136 
3137 
3138 /*
3139  * nVidia chipset support functions
3140  */
3141 int
3142 ata_nvidia_ident(device_t dev)
3143 {
3144     struct ata_pci_controller *ctlr = device_get_softc(dev);
3145     struct ata_chip_id *idx;
3146     static struct ata_chip_id ids[] =
3147     {{ ATA_NFORCE1,         0, AMDNVIDIA, NVIDIA,  ATA_UDMA5, "nForce" },
3148      { ATA_NFORCE2,         0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce2" },
3149      { ATA_NFORCE2_PRO,     0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce2 Pro" },
3150      { ATA_NFORCE2_PRO_S1,  0, 0,         0,       ATA_SA150, "nForce2 Pro" },
3151      { ATA_NFORCE3,         0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce3" },
3152      { ATA_NFORCE3_PRO,     0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce3 Pro" },
3153      { ATA_NFORCE3_PRO_S1,  0, 0,         0,       ATA_SA150, "nForce3 Pro" },
3154      { ATA_NFORCE3_PRO_S2,  0, 0,         0,       ATA_SA150, "nForce3 Pro" },
3155      { ATA_NFORCE_MCP04,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP" },
3156      { ATA_NFORCE_MCP04_S1, 0, 0,         NV4,     ATA_SA150, "nForce MCP" },
3157      { ATA_NFORCE_MCP04_S2, 0, 0,         NV4,     ATA_SA150, "nForce MCP" },
3158      { ATA_NFORCE_CK804,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce CK804" },
3159      { ATA_NFORCE_CK804_S1, 0, 0,         NV4,     ATA_SA300, "nForce CK804" },
3160      { ATA_NFORCE_CK804_S2, 0, 0,         NV4,     ATA_SA300, "nForce CK804" },
3161      { ATA_NFORCE_MCP51,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP51" },
3162      { ATA_NFORCE_MCP51_S1, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP51" },
3163      { ATA_NFORCE_MCP51_S2, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP51" },
3164      { ATA_NFORCE_MCP55,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP55" },
3165      { ATA_NFORCE_MCP55_S1, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP55" },
3166      { ATA_NFORCE_MCP55_S2, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP55" },
3167      { 0, 0, 0, 0, 0, 0}} ;
3168     char buffer[64] ;
3169 
3170     if (!(idx = ata_match_chip(dev, ids)))
3171 	return ENXIO;
3172 
3173     ksprintf(buffer, "nVidia %s %s controller",
3174 	    idx->text, ata_mode2str(idx->max_dma));
3175     device_set_desc_copy(dev, buffer);
3176     ctlr->chip = idx;
3177     ctlr->chipinit = ata_nvidia_chipinit;
3178     return 0;
3179 }
3180 
3181 static int
3182 ata_nvidia_chipinit(device_t dev)
3183 {
3184     struct ata_pci_controller *ctlr = device_get_softc(dev);
3185 
3186     if (ata_setup_interrupt(dev))
3187 	return ENXIO;
3188 
3189     if (ctlr->chip->max_dma >= ATA_SA150) {
3190 	if (pci_read_config(dev, PCIR_BAR(5), 1) & 1)
3191 	    ctlr->r_type2 = SYS_RES_IOPORT;
3192 	else
3193 	    ctlr->r_type2 = SYS_RES_MEMORY;
3194 	ctlr->r_rid2 = PCIR_BAR(5);
3195 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
3196 						   &ctlr->r_rid2, RF_ACTIVE))) {
3197 	    int offset = ctlr->chip->cfg2 & NV4 ? 0x0440 : 0x0010;
3198 
3199 	    ctlr->allocate = ata_nvidia_allocate;
3200 	    ctlr->reset = ata_nvidia_reset;
3201 
3202 	    /* enable control access */
3203 	    pci_write_config(dev, 0x50, pci_read_config(dev, 0x50, 1) | 0x04,1);
3204 
3205 	    if (ctlr->chip->cfg2 & NVQ) {
3206 		/* clear interrupt status */
3207 		ATA_OUTL(ctlr->r_res2, offset, 0x00ff00ff);
3208 
3209 		/* enable device and PHY state change interrupts */
3210 		ATA_OUTL(ctlr->r_res2, offset + 4, 0x000d000d);
3211 
3212 		/* disable NCQ support */
3213 		ATA_OUTL(ctlr->r_res2, 0x0400,
3214 			 ATA_INL(ctlr->r_res2, 0x0400) & 0xfffffff9);
3215 	    }
3216 	    else {
3217 		/* clear interrupt status */
3218 		ATA_OUTB(ctlr->r_res2, offset, 0xff);
3219 
3220 		/* enable device and PHY state change interrupts */
3221 		ATA_OUTB(ctlr->r_res2, offset + 1, 0xdd);
3222 	    }
3223 
3224 	    /* enable PCI interrupt */
3225 	    pci_write_config(dev, PCIR_COMMAND,
3226 			     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400,2);
3227 
3228 	}
3229 	ctlr->setmode = ata_sata_setmode;
3230     }
3231     else {
3232 	/* disable prefetch, postwrite */
3233 	pci_write_config(dev, 0x51, pci_read_config(dev, 0x51, 1) & 0x0f, 1);
3234 	ctlr->setmode = ata_via_family_setmode;
3235     }
3236     return 0;
3237 }
3238 
3239 static int
3240 ata_nvidia_allocate(device_t dev)
3241 {
3242     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3243     struct ata_channel *ch = device_get_softc(dev);
3244 
3245     /* setup the usual register normal pci style */
3246     if (ata_pci_allocate(dev))
3247 	return ENXIO;
3248 
3249     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
3250     ch->r_io[ATA_SSTATUS].offset = (ch->unit << 6);
3251     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
3252     ch->r_io[ATA_SERROR].offset = 0x04 + (ch->unit << 6);
3253     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
3254     ch->r_io[ATA_SCONTROL].offset = 0x08 + (ch->unit << 6);
3255 
3256     ch->hw.status = ata_nvidia_status;
3257     ch->flags |= ATA_NO_SLAVE;
3258 
3259     return 0;
3260 }
3261 
3262 static int
3263 ata_nvidia_status(device_t dev)
3264 {
3265     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3266     struct ata_channel *ch = device_get_softc(dev);
3267     int offset = ctlr->chip->cfg2 & NV4 ? 0x0440 : 0x0010;
3268     int shift = ch->unit << (ctlr->chip->cfg2 & NVQ ? 4 : 2);
3269     u_int32_t istatus = ATA_INL(ctlr->r_res2, offset);
3270 
3271     /* do we have any PHY events ? */
3272     if (istatus & (0x0c << shift))
3273 	ata_sata_phy_check_events(dev);
3274 
3275     /* clear interrupt(s) */
3276     ATA_OUTB(ctlr->r_res2, offset,
3277 	     (0x0f << shift) | (ctlr->chip->cfg2 & NVQ ? 0x00f000f0 : 0));
3278 
3279     /* do we have any device action ? */
3280     return (istatus & (0x01 << shift));
3281 }
3282 
3283 static void
3284 ata_nvidia_reset(device_t dev)
3285 {
3286     if (ata_sata_phy_reset(dev))
3287 	ata_generic_reset(dev);
3288 }
3289 
3290 
3291 /*
3292  * Promise chipset support functions
3293  */
3294 #define ATA_PDC_APKT_OFFSET     0x00000010
3295 #define ATA_PDC_HPKT_OFFSET     0x00000040
3296 #define ATA_PDC_ASG_OFFSET      0x00000080
3297 #define ATA_PDC_LSG_OFFSET      0x000000c0
3298 #define ATA_PDC_HSG_OFFSET      0x00000100
3299 #define ATA_PDC_CHN_OFFSET      0x00000400
3300 #define ATA_PDC_BUF_BASE        0x00400000
3301 #define ATA_PDC_BUF_OFFSET      0x00100000
3302 #define ATA_PDC_MAX_HPKT        8
3303 #define ATA_PDC_WRITE_REG       0x00
3304 #define ATA_PDC_WRITE_CTL       0x0e
3305 #define ATA_PDC_WRITE_END       0x08
3306 #define ATA_PDC_WAIT_NBUSY      0x10
3307 #define ATA_PDC_WAIT_READY      0x18
3308 #define ATA_PDC_1B              0x20
3309 #define ATA_PDC_2B              0x40
3310 
3311 struct host_packet {
3312     u_int32_t                   addr;
3313     TAILQ_ENTRY(host_packet)    chain;
3314 };
3315 
3316 struct ata_promise_sx4 {
3317     struct spinlock             mtx;
3318     TAILQ_HEAD(, host_packet)   queue;
3319     int                         busy;
3320 };
3321 
3322 int
3323 ata_promise_ident(device_t dev)
3324 {
3325     struct ata_pci_controller *ctlr = device_get_softc(dev);
3326     struct ata_chip_id *idx;
3327     static struct ata_chip_id ids[] =
3328     {{ ATA_PDC20246,  0, PROLD, 0x00,    ATA_UDMA2, "PDC20246" },
3329      { ATA_PDC20262,  0, PRNEW, 0x00,    ATA_UDMA4, "PDC20262" },
3330      { ATA_PDC20263,  0, PRNEW, 0x00,    ATA_UDMA4, "PDC20263" },
3331      { ATA_PDC20265,  0, PRNEW, 0x00,    ATA_UDMA5, "PDC20265" },
3332      { ATA_PDC20267,  0, PRNEW, 0x00,    ATA_UDMA5, "PDC20267" },
3333      { ATA_PDC20268,  0, PRTX,  PRTX4,   ATA_UDMA5, "PDC20268" },
3334      { ATA_PDC20269,  0, PRTX,  0x00,    ATA_UDMA6, "PDC20269" },
3335      { ATA_PDC20270,  0, PRTX,  PRTX4,   ATA_UDMA5, "PDC20270" },
3336      { ATA_PDC20271,  0, PRTX,  0x00,    ATA_UDMA6, "PDC20271" },
3337      { ATA_PDC20275,  0, PRTX,  0x00,    ATA_UDMA6, "PDC20275" },
3338      { ATA_PDC20276,  0, PRTX,  PRSX6K,  ATA_UDMA6, "PDC20276" },
3339      { ATA_PDC20277,  0, PRTX,  0x00,    ATA_UDMA6, "PDC20277" },
3340      { ATA_PDC20318,  0, PRMIO, PRSATA,  ATA_SA150, "PDC20318" },
3341      { ATA_PDC20319,  0, PRMIO, PRSATA,  ATA_SA150, "PDC20319" },
3342      { ATA_PDC20371,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20371" },
3343      { ATA_PDC20375,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20375" },
3344      { ATA_PDC20376,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20376" },
3345      { ATA_PDC20377,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20377" },
3346      { ATA_PDC20378,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20378" },
3347      { ATA_PDC20379,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20379" },
3348      { ATA_PDC20571,  0, PRMIO, PRCMBO2, ATA_SA150, "PDC20571" },
3349      { ATA_PDC20575,  0, PRMIO, PRCMBO2, ATA_SA150, "PDC20575" },
3350      { ATA_PDC20579,  0, PRMIO, PRCMBO2, ATA_SA150, "PDC20579" },
3351      { ATA_PDC20771,  0, PRMIO, PRCMBO2, ATA_SA300, "PDC20771" },
3352      { ATA_PDC40775,  0, PRMIO, PRCMBO2, ATA_SA300, "PDC40775" },
3353      { ATA_PDC20617,  0, PRMIO, PRPATA,  ATA_UDMA6, "PDC20617" },
3354      { ATA_PDC20618,  0, PRMIO, PRPATA,  ATA_UDMA6, "PDC20618" },
3355      { ATA_PDC20619,  0, PRMIO, PRPATA,  ATA_UDMA6, "PDC20619" },
3356      { ATA_PDC20620,  0, PRMIO, PRPATA,  ATA_UDMA6, "PDC20620" },
3357      { ATA_PDC20621,  0, PRMIO, PRSX4X,  ATA_UDMA5, "PDC20621" },
3358      { ATA_PDC20622,  0, PRMIO, PRSX4X,  ATA_SA150, "PDC20622" },
3359      { ATA_PDC40518,  0, PRMIO, PRSATA2, ATA_SA150, "PDC40518" },
3360      { ATA_PDC40519,  0, PRMIO, PRSATA2, ATA_SA150, "PDC40519" },
3361      { ATA_PDC40718,  0, PRMIO, PRSATA2, ATA_SA300, "PDC40718" },
3362      { ATA_PDC40719,  0, PRMIO, PRSATA2, ATA_SA300, "PDC40719" },
3363      { ATA_PDC40779,  0, PRMIO, PRSATA2, ATA_SA300, "PDC40779" },
3364      { 0, 0, 0, 0, 0, 0}};
3365     char buffer[64];
3366     uintptr_t devid = 0;
3367 
3368     if (!(idx = ata_match_chip(dev, ids)))
3369 	return ENXIO;
3370 
3371     /* if we are on a SuperTrak SX6000 dont attach */
3372     if ((idx->cfg2 & PRSX6K) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
3373 	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
3374 		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
3375 	devid == ATA_I960RM)
3376 	return ENXIO;
3377 
3378     strcpy(buffer, "Promise ");
3379     strcat(buffer, idx->text);
3380 
3381     /* if we are on a FastTrak TX4, adjust the interrupt resource */
3382     if ((idx->cfg2 & PRTX4) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
3383 	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
3384 		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
3385 	((devid == ATA_DEC_21150) || (devid == ATA_DEC_21150_1))) {
3386 	static long start = 0, end = 0;
3387 
3388 	if (pci_get_slot(dev) == 1) {
3389 	    bus_get_resource(dev, SYS_RES_IRQ, 0, &start, &end);
3390 	    strcat(buffer, " (channel 0+1)");
3391 	}
3392 	else if (pci_get_slot(dev) == 2 && start && end) {
3393 	    bus_set_resource(dev, SYS_RES_IRQ, 0, start, end);
3394 	    strcat(buffer, " (channel 2+3)");
3395 	}
3396 	else {
3397 	    start = end = 0;
3398 	}
3399     }
3400     ksprintf(buffer, "%s %s controller", buffer, ata_mode2str(idx->max_dma));
3401     device_set_desc_copy(dev, buffer);
3402     ctlr->chip = idx;
3403     ctlr->chipinit = ata_promise_chipinit;
3404     return 0;
3405 }
3406 
3407 static int
3408 ata_promise_chipinit(device_t dev)
3409 {
3410     struct ata_pci_controller *ctlr = device_get_softc(dev);
3411     int fake_reg, stat_reg;
3412 
3413     if (ata_setup_interrupt(dev))
3414 	return ENXIO;
3415 
3416     switch  (ctlr->chip->cfg1) {
3417     case PRNEW:
3418 	/* setup clocks */
3419 	ATA_OUTB(ctlr->r_res1, 0x11, ATA_INB(ctlr->r_res1, 0x11) | 0x0a);
3420 
3421 	ctlr->dmainit = ata_promise_dmainit;
3422 	/* FALLTHROUGH */
3423 
3424     case PROLD:
3425 	/* enable burst mode */
3426 	ATA_OUTB(ctlr->r_res1, 0x1f, ATA_INB(ctlr->r_res1, 0x1f) | 0x01);
3427 	ctlr->allocate = ata_promise_allocate;
3428 	ctlr->setmode = ata_promise_setmode;
3429 	return 0;
3430 
3431     case PRTX:
3432 	ctlr->allocate = ata_promise_tx2_allocate;
3433 	ctlr->setmode = ata_promise_setmode;
3434 	return 0;
3435 
3436     case PRMIO:
3437 	ctlr->r_type1 = SYS_RES_MEMORY;
3438 	ctlr->r_rid1 = PCIR_BAR(4);
3439 	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
3440 						    &ctlr->r_rid1, RF_ACTIVE)))
3441 	    goto failnfree;
3442 
3443 	ctlr->r_type2 = SYS_RES_MEMORY;
3444 	ctlr->r_rid2 = PCIR_BAR(3);
3445 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
3446 						    &ctlr->r_rid2, RF_ACTIVE)))
3447 	    goto failnfree;
3448 
3449 	if (ctlr->chip->cfg2 == PRSX4X) {
3450 	    struct ata_promise_sx4 *hpkt;
3451 	    u_int32_t dimm = ATA_INL(ctlr->r_res2, 0x000c0080);
3452 
3453 	    if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
3454 		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS,
3455 			       ata_promise_sx4_intr, ctlr, &ctlr->handle, NULL)) {
3456 		device_printf(dev, "unable to setup interrupt\n");
3457 		goto failnfree;
3458 	    }
3459 
3460 	    /* print info about cache memory */
3461 	    device_printf(dev, "DIMM size %dMB @ 0x%08x%s\n",
3462 			  (((dimm >> 16) & 0xff)-((dimm >> 24) & 0xff)+1) << 4,
3463 			  ((dimm >> 24) & 0xff),
3464 			  ATA_INL(ctlr->r_res2, 0x000c0088) & (1<<16) ?
3465 			  " ECC enabled" : "" );
3466 
3467 	    /* adjust cache memory parameters */
3468 	    ATA_OUTL(ctlr->r_res2, 0x000c000c,
3469 		     (ATA_INL(ctlr->r_res2, 0x000c000c) & 0xffff0000));
3470 
3471 	    /* setup host packet controls */
3472 	    hpkt = kmalloc(sizeof(struct ata_promise_sx4),
3473 			  M_TEMP, M_INTWAIT | M_ZERO);
3474 	    spin_init(&hpkt->mtx);
3475 	    TAILQ_INIT(&hpkt->queue);
3476 	    hpkt->busy = 0;
3477 	    device_set_ivars(dev, hpkt);
3478 	    ctlr->allocate = ata_promise_mio_allocate;
3479 	    ctlr->reset = ata_promise_mio_reset;
3480 	    ctlr->dmainit = ata_promise_mio_dmainit;
3481 	    ctlr->setmode = ata_promise_setmode;
3482 	    ctlr->channels = 4;
3483 	    return 0;
3484 	}
3485 
3486 	/* mio type controllers need an interrupt intercept */
3487 	if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
3488 		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS,
3489 			       ata_promise_mio_intr, ctlr, &ctlr->handle, NULL)) {
3490 		device_printf(dev, "unable to setup interrupt\n");
3491 		goto failnfree;
3492 	}
3493 
3494 	switch (ctlr->chip->cfg2) {
3495 	case PRPATA:
3496 	    ctlr->channels = ((ATA_INL(ctlr->r_res2, 0x48) & 0x01) > 0) +
3497 			     ((ATA_INL(ctlr->r_res2, 0x48) & 0x02) > 0) + 2;
3498 	    goto sata150;
3499 	case PRCMBO:
3500 	    ctlr->channels = 3;
3501 	    goto sata150;
3502 	case PRSATA:
3503 	    ctlr->channels = 4;
3504 sata150:
3505 	    fake_reg = 0x60;
3506 	    stat_reg = 0x6c;
3507 	    break;
3508 
3509 	case PRCMBO2:
3510 	    ctlr->channels = 3;
3511 	    goto sataii;
3512 	case PRSATA2:
3513 	default:
3514 	    ctlr->channels = 4;
3515 sataii:
3516 	    fake_reg = 0x54;
3517 	    stat_reg = 0x60;
3518 	    break;
3519 	}
3520 
3521 	/* prime fake interrupt register */
3522 	ATA_OUTL(ctlr->r_res2, fake_reg, 0xffffffff);
3523 
3524 	/* clear SATA status */
3525 	ATA_OUTL(ctlr->r_res2, stat_reg, 0x000000ff);
3526 
3527 	ctlr->allocate = ata_promise_mio_allocate;
3528 	ctlr->reset = ata_promise_mio_reset;
3529 	ctlr->dmainit = ata_promise_mio_dmainit;
3530 	ctlr->setmode = ata_promise_mio_setmode;
3531 
3532 	return 0;
3533     }
3534 
3535 failnfree:
3536     if (ctlr->r_res2)
3537 	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
3538     if (ctlr->r_res1)
3539 	bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
3540     return ENXIO;
3541 }
3542 
3543 static int
3544 ata_promise_allocate(device_t dev)
3545 {
3546     struct ata_channel *ch = device_get_softc(dev);
3547 
3548     if (ata_pci_allocate(dev))
3549 	return ENXIO;
3550 
3551     ch->hw.status = ata_promise_status;
3552     return 0;
3553 }
3554 
3555 static int
3556 ata_promise_status(device_t dev)
3557 {
3558     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3559     struct ata_channel *ch = device_get_softc(dev);
3560 
3561     if (ATA_INL(ctlr->r_res1, 0x1c) & (ch->unit ? 0x00004000 : 0x00000400)) {
3562 	return ata_pci_status(dev);
3563     }
3564     return 0;
3565 }
3566 
3567 static int
3568 ata_promise_dmastart(device_t dev)
3569 {
3570     struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev));
3571     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
3572     struct ata_device *atadev  = device_get_softc(dev);
3573 
3574     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
3575 	ATA_OUTB(ctlr->r_res1, 0x11,
3576 		 ATA_INB(ctlr->r_res1, 0x11) | (ch->unit ? 0x08 : 0x02));
3577 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20,
3578 		 ((ch->dma->flags & ATA_DMA_READ) ? 0x05000000 : 0x06000000) |
3579 		 (ch->dma->cur_iosize >> 1));
3580     }
3581     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
3582 		 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
3583     ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, ch->dma->sg_bus);
3584     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
3585 		 ((ch->dma->flags & ATA_DMA_READ) ? ATA_BMCMD_WRITE_READ : 0) |
3586 		 ATA_BMCMD_START_STOP);
3587     ch->flags |= ATA_DMA_ACTIVE;
3588     return 0;
3589 }
3590 
3591 static int
3592 ata_promise_dmastop(device_t dev)
3593 {
3594     struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev));
3595     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
3596     struct ata_device *atadev  = device_get_softc(dev);
3597     int error;
3598 
3599     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
3600 	ATA_OUTB(ctlr->r_res1, 0x11,
3601 		 ATA_INB(ctlr->r_res1, 0x11) & ~(ch->unit ? 0x08 : 0x02));
3602 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20, 0);
3603     }
3604     error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT);
3605     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
3606 		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
3607     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
3608     ch->flags &= ~ATA_DMA_ACTIVE;
3609     return error;
3610 }
3611 
3612 static void
3613 ata_promise_dmareset(device_t dev)
3614 {
3615     struct ata_channel *ch = device_get_softc(dev);
3616 
3617     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
3618 		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
3619     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
3620     ch->flags &= ~ATA_DMA_ACTIVE;
3621 }
3622 
3623 static void
3624 ata_promise_dmainit(device_t dev)
3625 {
3626     struct ata_channel *ch = device_get_softc(dev);
3627 
3628     ata_dmainit(dev);
3629     if (ch->dma) {
3630 	ch->dma->start = ata_promise_dmastart;
3631 	ch->dma->stop = ata_promise_dmastop;
3632 	ch->dma->reset = ata_promise_dmareset;
3633     }
3634 }
3635 
3636 static void
3637 ata_promise_setmode(device_t dev, int mode)
3638 {
3639     device_t gparent = GRANDPARENT(dev);
3640     struct ata_pci_controller *ctlr = device_get_softc(gparent);
3641     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
3642     struct ata_device *atadev = device_get_softc(dev);
3643     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
3644     int error;
3645     u_int32_t timings[][2] = {
3646     /*    PROLD       PRNEW                mode */
3647 	{ 0x004ff329, 0x004fff2f },     /* PIO 0 */
3648 	{ 0x004fec25, 0x004ff82a },     /* PIO 1 */
3649 	{ 0x004fe823, 0x004ff026 },     /* PIO 2 */
3650 	{ 0x004fe622, 0x004fec24 },     /* PIO 3 */
3651 	{ 0x004fe421, 0x004fe822 },     /* PIO 4 */
3652 	{ 0x004567f3, 0x004acef6 },     /* MWDMA 0 */
3653 	{ 0x004467f3, 0x0048cef6 },     /* MWDMA 1 */
3654 	{ 0x004367f3, 0x0046cef6 },     /* MWDMA 2 */
3655 	{ 0x004367f3, 0x0046cef6 },     /* UDMA 0 */
3656 	{ 0x004247f3, 0x00448ef6 },     /* UDMA 1 */
3657 	{ 0x004127f3, 0x00436ef6 },     /* UDMA 2 */
3658 	{ 0,          0x00424ef6 },     /* UDMA 3 */
3659 	{ 0,          0x004127f3 },     /* UDMA 4 */
3660 	{ 0,          0x004127f3 }      /* UDMA 5 */
3661     };
3662 
3663     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
3664 
3665     switch (ctlr->chip->cfg1) {
3666     case PROLD:
3667     case PRNEW:
3668 	if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x50, 2) &
3669 				 (ch->unit ? 1 << 11 : 1 << 10))) {
3670 	    ata_print_cable(dev, "controller");
3671 	    mode = ATA_UDMA2;
3672 	}
3673 	if (ata_atapi(dev) && mode > ATA_PIO_MAX)
3674 	    mode = ata_limit_mode(dev, mode, ATA_PIO_MAX);
3675 	break;
3676 
3677     case PRTX:
3678 	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
3679 	if (mode > ATA_UDMA2 &&
3680 	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
3681 	    ata_print_cable(dev, "controller");
3682 	    mode = ATA_UDMA2;
3683 	}
3684 	break;
3685 
3686     case PRMIO:
3687 	if (mode > ATA_UDMA2 &&
3688 	    (ATA_INL(ctlr->r_res2,
3689 		     (ctlr->chip->cfg2 & PRSX4X ? 0x000c0260 : 0x0260) +
3690 		     (ch->unit << 7)) & 0x01000000)) {
3691 	    ata_print_cable(dev, "controller");
3692 	    mode = ATA_UDMA2;
3693 	}
3694 	break;
3695     }
3696 
3697     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
3698 
3699     if (bootverbose)
3700 	device_printf(dev, "%ssetting %s on %s chip\n",
3701 		     (error) ? "FAILURE " : "",
3702 		     ata_mode2str(mode), ctlr->chip->text);
3703     if (!error) {
3704 	if (ctlr->chip->cfg1 < PRTX)
3705 	    pci_write_config(gparent, 0x60 + (devno << 2),
3706 			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
3707 	atadev->mode = mode;
3708     }
3709     return;
3710 }
3711 
3712 static int
3713 ata_promise_tx2_allocate(device_t dev)
3714 {
3715     struct ata_channel *ch = device_get_softc(dev);
3716 
3717     if (ata_pci_allocate(dev))
3718 	return ENXIO;
3719 
3720     ch->hw.status = ata_promise_tx2_status;
3721     return 0;
3722 }
3723 
3724 static int
3725 ata_promise_tx2_status(device_t dev)
3726 {
3727     struct ata_channel *ch = device_get_softc(dev);
3728 
3729     ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
3730     if (ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x20) {
3731 	return ata_pci_status(dev);
3732     }
3733     return 0;
3734 }
3735 
3736 static int
3737 ata_promise_mio_allocate(device_t dev)
3738 {
3739     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3740     struct ata_channel *ch = device_get_softc(dev);
3741     int offset = (ctlr->chip->cfg2 & PRSX4X) ? 0x000c0000 : 0;
3742     int i;
3743 
3744     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
3745 	ch->r_io[i].res = ctlr->r_res2;
3746 	ch->r_io[i].offset = offset + 0x0200 + (i << 2) + (ch->unit << 7);
3747     }
3748     ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
3749     ch->r_io[ATA_CONTROL].offset = offset + 0x0238 + (ch->unit << 7);
3750     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
3751     ata_default_registers(dev);
3752     if ((ctlr->chip->cfg2 & (PRSATA | PRSATA2)) ||
3753 	((ctlr->chip->cfg2 & (PRCMBO | PRCMBO2)) && ch->unit < 2)) {
3754 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
3755 	ch->r_io[ATA_SSTATUS].offset = 0x400 + (ch->unit << 8);
3756 	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
3757 	ch->r_io[ATA_SERROR].offset = 0x404 + (ch->unit << 8);
3758 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
3759 	ch->r_io[ATA_SCONTROL].offset = 0x408 + (ch->unit << 8);
3760 	ch->flags |= ATA_NO_SLAVE;
3761     }
3762     ch->flags |= ATA_USE_16BIT;
3763 
3764     ata_generic_hw(dev);
3765     if (ctlr->chip->cfg2 & PRSX4X) {
3766 	ch->hw.command = ata_promise_sx4_command;
3767     }
3768     else {
3769 	ch->hw.command = ata_promise_mio_command;
3770 	ch->hw.status = ata_promise_mio_status;
3771      }
3772     return 0;
3773 }
3774 
3775 static void
3776 ata_promise_mio_intr(void *data)
3777 {
3778     struct ata_pci_controller *ctlr = data;
3779     struct ata_channel *ch;
3780     u_int32_t vector;
3781     int unit, fake_reg;
3782 
3783     switch (ctlr->chip->cfg2) {
3784     case PRPATA:
3785     case PRCMBO:
3786     case PRSATA:
3787 	fake_reg = 0x60;
3788 	break;
3789     case PRCMBO2:
3790     case PRSATA2:
3791     default:
3792 	fake_reg = 0x54;
3793 	break;
3794     }
3795 
3796     /*
3797      * since reading interrupt status register on early "mio" chips
3798      * clears the status bits we cannot read it for each channel later on
3799      * in the generic interrupt routine.
3800      * store the bits in an unused register in the chip so we can read
3801      * it from there safely to get around this "feature".
3802      */
3803     vector = ATA_INL(ctlr->r_res2, 0x040);
3804     ATA_OUTL(ctlr->r_res2, 0x040, vector);
3805     ATA_OUTL(ctlr->r_res2, fake_reg, vector);
3806 
3807     for (unit = 0; unit < ctlr->channels; unit++) {
3808 	if ((ch = ctlr->interrupt[unit].argument))
3809 	    ctlr->interrupt[unit].function(ch);
3810     }
3811 
3812     ATA_OUTL(ctlr->r_res2, fake_reg, 0xffffffff);
3813 }
3814 
3815 static int
3816 ata_promise_mio_status(device_t dev)
3817 {
3818     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3819     struct ata_channel *ch = device_get_softc(dev);
3820     struct ata_connect_task *tp;
3821     u_int32_t fake_reg, stat_reg, vector, status;
3822 
3823     switch (ctlr->chip->cfg2) {
3824     case PRPATA:
3825     case PRCMBO:
3826     case PRSATA:
3827 	fake_reg = 0x60;
3828 	stat_reg = 0x6c;
3829 	break;
3830     case PRCMBO2:
3831     case PRSATA2:
3832     default:
3833 	fake_reg = 0x54;
3834 	stat_reg = 0x60;
3835 	break;
3836     }
3837 
3838     /* read and acknowledge interrupt */
3839     vector = ATA_INL(ctlr->r_res2, fake_reg);
3840 
3841     /* read and clear interface status */
3842     status = ATA_INL(ctlr->r_res2, stat_reg);
3843     ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
3844 
3845     /* check for and handle disconnect events */
3846     if ((status & (0x00000001 << ch->unit)) &&
3847 	(tp = (struct ata_connect_task *)
3848 	      kmalloc(sizeof(struct ata_connect_task),
3849 		     M_ATA, M_INTWAIT | M_ZERO))) {
3850 
3851 	if (bootverbose)
3852 	    device_printf(ch->dev, "DISCONNECT requested\n");
3853 	tp->action = ATA_C_DETACH;
3854 	tp->dev = ch->dev;
3855 	TASK_INIT(&tp->task, 0, ata_sata_phy_event, tp);
3856 	taskqueue_enqueue(taskqueue_thread[mycpuid], &tp->task);
3857     }
3858 
3859     /* check for and handle connect events */
3860     if ((status & (0x00000010 << ch->unit)) &&
3861 	(tp = (struct ata_connect_task *)
3862 	      kmalloc(sizeof(struct ata_connect_task),
3863 		     M_ATA, M_INTWAIT | M_ZERO))) {
3864 
3865 	if (bootverbose)
3866 	    device_printf(ch->dev, "CONNECT requested\n");
3867 	tp->action = ATA_C_ATTACH;
3868 	tp->dev = ch->dev;
3869 	TASK_INIT(&tp->task, 0, ata_sata_phy_event, tp);
3870 	taskqueue_enqueue(taskqueue_thread[mycpuid], &tp->task);
3871     }
3872 
3873     /* do we have any device action ? */
3874     return (vector & (1 << (ch->unit + 1)));
3875 }
3876 
3877 static int
3878 ata_promise_mio_command(struct ata_request *request)
3879 {
3880     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
3881     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
3882     u_int32_t *wordp = (u_int32_t *)ch->dma->work;
3883 
3884     ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
3885 
3886     /* XXX SOS add ATAPI commands support later */
3887     switch (request->u.ata.command) {
3888     default:
3889 	return ata_generic_command(request);
3890 
3891     case ATA_READ_DMA:
3892     case ATA_READ_DMA48:
3893 	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
3894 	break;
3895 
3896     case ATA_WRITE_DMA:
3897     case ATA_WRITE_DMA48:
3898 	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
3899 	break;
3900     }
3901     wordp[1] = htole32(ch->dma->sg_bus);
3902     wordp[2] = 0;
3903     ata_promise_apkt((u_int8_t*)wordp, request);
3904 
3905     ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma->work_bus);
3906     return 0;
3907 }
3908 
3909 static void
3910 ata_promise_mio_reset(device_t dev)
3911 {
3912     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3913     struct ata_channel *ch = device_get_softc(dev);
3914     struct ata_promise_sx4 *hpktp;
3915 
3916     switch (ctlr->chip->cfg2) {
3917     case PRSX4X:
3918 
3919 	/* softreset channel ATA module */
3920 	hpktp = device_get_ivars(ctlr->dev);
3921 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
3922 	ata_udelay(1000);
3923 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
3924 		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
3925 		  ~0x00003f9f) | (ch->unit + 1));
3926 
3927 	/* softreset HOST module */ /* XXX SOS what about other outstandings */
3928 	spin_lock_wr(&hpktp->mtx);
3929 	ATA_OUTL(ctlr->r_res2, 0xc012c,
3930 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
3931 	DELAY(10);
3932 	ATA_OUTL(ctlr->r_res2, 0xc012c,
3933 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
3934 	hpktp->busy = 0;
3935 	spin_unlock_wr(&hpktp->mtx);
3936 	ata_generic_reset(dev);
3937 	break;
3938 
3939     case PRPATA:
3940     case PRCMBO:
3941     case PRSATA:
3942 	if ((ctlr->chip->cfg2 == PRSATA) ||
3943 	    ((ctlr->chip->cfg2 == PRCMBO) && (ch->unit < 2))) {
3944 
3945 	    /* mask plug/unplug intr */
3946 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
3947 	}
3948 
3949 	/* softreset channels ATA module */
3950 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
3951 	ata_udelay(10000);
3952 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
3953 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
3954 		  ~0x00003f9f) | (ch->unit + 1));
3955 
3956 	if ((ctlr->chip->cfg2 == PRSATA) ||
3957 	    ((ctlr->chip->cfg2 == PRCMBO) && (ch->unit < 2))) {
3958 
3959 	    if (ata_sata_phy_reset(dev))
3960 		ata_generic_reset(dev);
3961 
3962 	    /* reset and enable plug/unplug intr */
3963 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
3964 	}
3965 	else
3966 	    ata_generic_reset(dev);
3967 	break;
3968 
3969     case PRCMBO2:
3970     case PRSATA2:
3971 	if ((ctlr->chip->cfg2 == PRSATA2) ||
3972 	    ((ctlr->chip->cfg2 == PRCMBO2) && (ch->unit < 2))) {
3973 	    /* set portmultiplier port */
3974 	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
3975 
3976 	    /* mask plug/unplug intr */
3977 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
3978 	}
3979 
3980 	/* softreset channels ATA module */
3981 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
3982 	ata_udelay(10000);
3983 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
3984 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
3985 		  ~0x00003f9f) | (ch->unit + 1));
3986 
3987 	if ((ctlr->chip->cfg2 == PRSATA2) ||
3988 	    ((ctlr->chip->cfg2 == PRCMBO2) && (ch->unit < 2))) {
3989 
3990 	    /* set PHY mode to "improved" */
3991 	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
3992 		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
3993 		     ~0x00000003) | 0x00000001);
3994 
3995 	    if (ata_sata_phy_reset(dev))
3996 		ata_generic_reset(dev);
3997 
3998 	    /* reset and enable plug/unplug intr */
3999 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
4000 
4001 	    /* set portmultiplier port */
4002 	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
4003 	}
4004 	else
4005 	    ata_generic_reset(dev);
4006 	break;
4007 
4008     }
4009 }
4010 
4011 static void
4012 ata_promise_mio_dmainit(device_t dev)
4013 {
4014     /* note start and stop are not used here */
4015     ata_dmainit(dev);
4016 }
4017 
4018 static void
4019 ata_promise_mio_setmode(device_t dev, int mode)
4020 {
4021     device_t gparent = GRANDPARENT(dev);
4022     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4023     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
4024 
4025     if ( (ctlr->chip->cfg2 == PRSATA) ||
4026 	((ctlr->chip->cfg2 == PRCMBO) && (ch->unit < 2)) ||
4027 	(ctlr->chip->cfg2 == PRSATA2) ||
4028 	((ctlr->chip->cfg2 == PRCMBO2) && (ch->unit < 2)))
4029 	ata_sata_setmode(dev, mode);
4030     else
4031 	ata_promise_setmode(dev, mode);
4032 }
4033 
4034 static void
4035 ata_promise_sx4_intr(void *data)
4036 {
4037     struct ata_pci_controller *ctlr = data;
4038     struct ata_channel *ch;
4039     u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
4040     int unit;
4041 
4042     for (unit = 0; unit < ctlr->channels; unit++) {
4043 	if (vector & (1 << (unit + 1)))
4044 	    if ((ch = ctlr->interrupt[unit].argument))
4045 		ctlr->interrupt[unit].function(ch);
4046 	if (vector & (1 << (unit + 5)))
4047 	    if ((ch = ctlr->interrupt[unit].argument))
4048 		ata_promise_queue_hpkt(ctlr,
4049 				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
4050 					       ATA_PDC_HPKT_OFFSET));
4051 	if (vector & (1 << (unit + 9))) {
4052 	    ata_promise_next_hpkt(ctlr);
4053 	    if ((ch = ctlr->interrupt[unit].argument))
4054 		ctlr->interrupt[unit].function(ch);
4055 	}
4056 	if (vector & (1 << (unit + 13))) {
4057 	    ata_promise_next_hpkt(ctlr);
4058 	    if ((ch = ctlr->interrupt[unit].argument))
4059 		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
4060 			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
4061 			 ATA_PDC_APKT_OFFSET));
4062 	}
4063     }
4064 }
4065 
4066 static int
4067 ata_promise_sx4_command(struct ata_request *request)
4068 {
4069     device_t gparent = GRANDPARENT(request->dev);
4070     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4071     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
4072     struct ata_dma_prdentry *prd = ch->dma->sg;
4073     caddr_t window = rman_get_virtual(ctlr->r_res1);
4074     u_int32_t *wordp;
4075     int i, idx, length = 0;
4076 
4077     /* XXX SOS add ATAPI commands support later */
4078     switch (request->u.ata.command) {
4079 
4080     default:
4081 	return -1;
4082 
4083     case ATA_ATA_IDENTIFY:
4084     case ATA_READ:
4085     case ATA_READ48:
4086     case ATA_READ_MUL:
4087     case ATA_READ_MUL48:
4088     case ATA_WRITE:
4089     case ATA_WRITE48:
4090     case ATA_WRITE_MUL:
4091     case ATA_WRITE_MUL48:
4092 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
4093 	return ata_generic_command(request);
4094 
4095     case ATA_SETFEATURES:
4096     case ATA_FLUSHCACHE:
4097     case ATA_FLUSHCACHE48:
4098     case ATA_SLEEP:
4099     case ATA_SET_MULTI:
4100 	wordp = (u_int32_t *)
4101 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
4102 	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
4103 	wordp[1] = 0;
4104 	wordp[2] = 0;
4105 	ata_promise_apkt((u_int8_t *)wordp, request);
4106 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
4107 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
4108 	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
4109 		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
4110 	return 0;
4111 
4112     case ATA_READ_DMA:
4113     case ATA_READ_DMA48:
4114     case ATA_WRITE_DMA:
4115     case ATA_WRITE_DMA48:
4116 	wordp = (u_int32_t *)
4117 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
4118 	i = idx = 0;
4119 	do {
4120 	    wordp[idx++] = prd[i].addr;
4121 	    wordp[idx++] = prd[i].count;
4122 	    length += (prd[i].count & ~ATA_DMA_EOT);
4123 	} while (!(prd[i++].count & ATA_DMA_EOT));
4124 
4125 	wordp = (u_int32_t *)
4126 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
4127 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
4128 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
4129 
4130 	wordp = (u_int32_t *)
4131 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
4132 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
4133 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
4134 
4135 	wordp = (u_int32_t *)
4136 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
4137 	if (request->flags & ATA_R_READ)
4138 	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
4139 	if (request->flags & ATA_R_WRITE)
4140 	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
4141 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
4142 	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
4143 	wordp[3] = 0;
4144 
4145 	wordp = (u_int32_t *)
4146 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
4147 	if (request->flags & ATA_R_READ)
4148 	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
4149 	if (request->flags & ATA_R_WRITE)
4150 	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
4151 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
4152 	wordp[2] = 0;
4153 	ata_promise_apkt((u_int8_t *)wordp, request);
4154 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
4155 
4156 	if (request->flags & ATA_R_READ) {
4157 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
4158 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
4159 	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
4160 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
4161 	}
4162 	if (request->flags & ATA_R_WRITE) {
4163 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
4164 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
4165 	    ata_promise_queue_hpkt(ctlr,
4166 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
4167 	}
4168 	return 0;
4169     }
4170 }
4171 
4172 static int
4173 ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
4174 {
4175     struct ata_device *atadev = device_get_softc(request->dev);
4176     int i = 12;
4177 
4178     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
4179     bytep[i++] = ATA_D_IBM | ATA_D_LBA | atadev->unit;
4180     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
4181     bytep[i++] = ATA_A_4BIT;
4182 
4183     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
4184 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
4185 	bytep[i++] = request->u.ata.feature >> 8;
4186 	bytep[i++] = request->u.ata.feature;
4187 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
4188 	bytep[i++] = request->u.ata.count >> 8;
4189 	bytep[i++] = request->u.ata.count;
4190 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
4191 	bytep[i++] = request->u.ata.lba >> 24;
4192 	bytep[i++] = request->u.ata.lba;
4193 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
4194 	bytep[i++] = request->u.ata.lba >> 32;
4195 	bytep[i++] = request->u.ata.lba >> 8;
4196 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
4197 	bytep[i++] = request->u.ata.lba >> 40;
4198 	bytep[i++] = request->u.ata.lba >> 16;
4199 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
4200 	bytep[i++] = ATA_D_LBA | atadev->unit;
4201     }
4202     else {
4203 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
4204 	bytep[i++] = request->u.ata.feature;
4205 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
4206 	bytep[i++] = request->u.ata.count;
4207 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
4208 	bytep[i++] = request->u.ata.lba;
4209 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
4210 	bytep[i++] = request->u.ata.lba >> 8;
4211 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
4212 	bytep[i++] = request->u.ata.lba >> 16;
4213 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
4214 	bytep[i++] = (atadev->flags & ATA_D_USE_CHS ? 0 : ATA_D_LBA) |
4215 		   ATA_D_IBM | atadev->unit | ((request->u.ata.lba >> 24)&0xf);
4216     }
4217     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
4218     bytep[i++] = request->u.ata.command;
4219     return i;
4220 }
4221 
4222 static void
4223 ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
4224 {
4225     struct ata_promise_sx4 *hpktp = device_get_ivars(ctlr->dev);
4226 
4227     spin_lock_wr(&hpktp->mtx);
4228     if (hpktp->busy) {
4229 	struct host_packet *hp =
4230 	    kmalloc(sizeof(struct host_packet), M_TEMP, M_INTWAIT | M_ZERO);
4231 	hp->addr = hpkt;
4232 	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
4233     }
4234     else {
4235 	hpktp->busy = 1;
4236 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
4237     }
4238     spin_unlock_wr(&hpktp->mtx);
4239 }
4240 
4241 static void
4242 ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
4243 {
4244     struct ata_promise_sx4 *hpktp = device_get_ivars(ctlr->dev);
4245     struct host_packet *hp;
4246 
4247     spin_lock_wr(&hpktp->mtx);
4248     if ((hp = TAILQ_FIRST(&hpktp->queue))) {
4249 	TAILQ_REMOVE(&hpktp->queue, hp, chain);
4250 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
4251 	kfree(hp, M_TEMP);
4252     }
4253     else
4254 	hpktp->busy = 0;
4255     spin_unlock_wr(&hpktp->mtx);
4256 }
4257 
4258 
4259 /*
4260  * ServerWorks chipset support functions
4261  */
4262 int
4263 ata_serverworks_ident(device_t dev)
4264 {
4265     struct ata_pci_controller *ctlr = device_get_softc(dev);
4266     struct ata_chip_id *idx;
4267     static struct ata_chip_id ids[] =
4268     {{ ATA_ROSB4,     0x00, SWKS33,  0, ATA_UDMA2, "ROSB4" },
4269      { ATA_CSB5,      0x92, SWKS100, 0, ATA_UDMA5, "CSB5" },
4270      { ATA_CSB5,      0x00, SWKS66,  0, ATA_UDMA4, "CSB5" },
4271      { ATA_CSB6,      0x00, SWKS100, 0, ATA_UDMA5, "CSB6" },
4272      { ATA_CSB6_1,    0x00, SWKS66,  0, ATA_UDMA4, "CSB6" },
4273      { ATA_HT1000,    0x00, SWKS100, 0, ATA_UDMA5, "HT1000" },
4274      { ATA_HT1000_S1, 0x00, SWKS100, 4, ATA_SA150, "HT1000" },
4275      { ATA_HT1000_S2, 0x00, SWKSMIO, 4, ATA_SA150, "HT1000" },
4276      { ATA_K2,        0x00, SWKSMIO, 4, ATA_SA150, "K2" },
4277      { ATA_FRODO4,    0x00, SWKSMIO, 4, ATA_SA150, "Frodo4" },
4278      { ATA_FRODO8,    0x00, SWKSMIO, 8, ATA_SA150, "Frodo8" },
4279      { 0, 0, 0, 0, 0, 0}};
4280     char buffer[64];
4281 
4282     if (!(idx = ata_match_chip(dev, ids)))
4283 	return ENXIO;
4284 
4285     ksprintf(buffer, "ServerWorks %s %s controller",
4286 	    idx->text, ata_mode2str(idx->max_dma));
4287     device_set_desc_copy(dev, buffer);
4288     ctlr->chip = idx;
4289     ctlr->chipinit = ata_serverworks_chipinit;
4290     return 0;
4291 }
4292 
4293 static int
4294 ata_serverworks_chipinit(device_t dev)
4295 {
4296     struct ata_pci_controller *ctlr = device_get_softc(dev);
4297 
4298     if (ata_setup_interrupt(dev))
4299 	return ENXIO;
4300 
4301     if (ctlr->chip->cfg1 == SWKSMIO) {
4302 	ctlr->r_type2 = SYS_RES_MEMORY;
4303 	ctlr->r_rid2 = PCIR_BAR(5);
4304 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
4305 						    &ctlr->r_rid2, RF_ACTIVE)))
4306 	    return ENXIO;
4307 
4308 	ctlr->channels = ctlr->chip->cfg2;
4309 	ctlr->allocate = ata_serverworks_allocate;
4310 	ctlr->setmode = ata_sata_setmode;
4311 	return 0;
4312     }
4313     else if (ctlr->chip->cfg1 == SWKS33) {
4314 	device_t *children;
4315 	int nchildren, i;
4316 
4317 	/* locate the ISA part in the southbridge and enable UDMA33 */
4318 	if (!device_get_children(device_get_parent(dev), &children,&nchildren)){
4319 	    for (i = 0; i < nchildren; i++) {
4320 		if (pci_get_devid(children[i]) == ATA_ROSB4_ISA) {
4321 		    pci_write_config(children[i], 0x64,
4322 				     (pci_read_config(children[i], 0x64, 4) &
4323 				      ~0x00002000) | 0x00004000, 4);
4324 		    break;
4325 		}
4326 	    }
4327 	    kfree(children, M_TEMP);
4328 	}
4329     }
4330     else {
4331 	pci_write_config(dev, 0x5a,
4332 			 (pci_read_config(dev, 0x5a, 1) & ~0x40) |
4333 			 (ctlr->chip->cfg1 == SWKS100) ? 0x03 : 0x02, 1);
4334     }
4335     ctlr->setmode = ata_serverworks_setmode;
4336     return 0;
4337 }
4338 
4339 static int
4340 ata_serverworks_allocate(device_t dev)
4341 {
4342     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4343     struct ata_channel *ch = device_get_softc(dev);
4344     int ch_offset;
4345     int i;
4346 
4347     ch_offset = ch->unit * 0x100;
4348 
4349     for (i = ATA_DATA; i < ATA_MAX_RES; i++)
4350 	ch->r_io[i].res = ctlr->r_res2;
4351 
4352     /* setup ATA registers */
4353     ch->r_io[ATA_DATA].offset = ch_offset + 0x00;
4354     ch->r_io[ATA_FEATURE].offset = ch_offset + 0x04;
4355     ch->r_io[ATA_COUNT].offset = ch_offset + 0x08;
4356     ch->r_io[ATA_SECTOR].offset = ch_offset + 0x0c;
4357     ch->r_io[ATA_CYL_LSB].offset = ch_offset + 0x10;
4358     ch->r_io[ATA_CYL_MSB].offset = ch_offset + 0x14;
4359     ch->r_io[ATA_DRIVE].offset = ch_offset + 0x18;
4360     ch->r_io[ATA_COMMAND].offset = ch_offset + 0x1c;
4361     ch->r_io[ATA_CONTROL].offset = ch_offset + 0x20;
4362     ata_default_registers(dev);
4363 
4364     /* setup DMA registers */
4365     ch->r_io[ATA_BMCMD_PORT].offset = ch_offset + 0x30;
4366     ch->r_io[ATA_BMSTAT_PORT].offset = ch_offset + 0x32;
4367     ch->r_io[ATA_BMDTP_PORT].offset = ch_offset + 0x34;
4368 
4369     /* setup SATA registers */
4370     ch->r_io[ATA_SSTATUS].offset = ch_offset + 0x40;
4371     ch->r_io[ATA_SERROR].offset = ch_offset + 0x44;
4372     ch->r_io[ATA_SCONTROL].offset = ch_offset + 0x48;
4373 
4374     ch->flags |= ATA_NO_SLAVE;
4375     ata_pci_hw(dev);
4376 
4377     /* chip does not reliably do 64K DMA transfers */
4378     if (ch->dma)
4379 	ch->dma->max_iosize = 126 * DEV_BSIZE;
4380 
4381     return 0;
4382 }
4383 
4384 static void
4385 ata_serverworks_setmode(device_t dev, int mode)
4386 {
4387     device_t gparent = GRANDPARENT(dev);
4388     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4389     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
4390     struct ata_device *atadev = device_get_softc(dev);
4391     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
4392     int offset = (devno ^ 0x01) << 3;
4393     int error;
4394     u_int8_t piotimings[] = { 0x5d, 0x47, 0x34, 0x22, 0x20, 0x34, 0x22, 0x20,
4395 			      0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
4396     u_int8_t dmatimings[] = { 0x77, 0x21, 0x20 };
4397 
4398     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
4399 
4400     mode = ata_check_80pin(dev, mode);
4401 
4402     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
4403 
4404     if (bootverbose)
4405 	device_printf(dev, "%ssetting %s on %s chip\n",
4406 		      (error) ? "FAILURE " : "",
4407 		      ata_mode2str(mode), ctlr->chip->text);
4408     if (!error) {
4409 	if (mode >= ATA_UDMA0) {
4410 	    pci_write_config(gparent, 0x56,
4411 			     (pci_read_config(gparent, 0x56, 2) &
4412 			      ~(0xf << (devno << 2))) |
4413 			     ((mode & ATA_MODE_MASK) << (devno << 2)), 2);
4414 	    pci_write_config(gparent, 0x54,
4415 			     pci_read_config(gparent, 0x54, 1) |
4416 			     (0x01 << devno), 1);
4417 	    pci_write_config(gparent, 0x44,
4418 			     (pci_read_config(gparent, 0x44, 4) &
4419 			      ~(0xff << offset)) |
4420 			     (dmatimings[2] << offset), 4);
4421 	}
4422 	else if (mode >= ATA_WDMA0) {
4423 	    pci_write_config(gparent, 0x54,
4424 			     pci_read_config(gparent, 0x54, 1) &
4425 			      ~(0x01 << devno), 1);
4426 	    pci_write_config(gparent, 0x44,
4427 			     (pci_read_config(gparent, 0x44, 4) &
4428 			      ~(0xff << offset)) |
4429 			     (dmatimings[mode & ATA_MODE_MASK] << offset), 4);
4430 	}
4431 	else
4432 	    pci_write_config(gparent, 0x54,
4433 			     pci_read_config(gparent, 0x54, 1) &
4434 			     ~(0x01 << devno), 1);
4435 
4436 	pci_write_config(gparent, 0x40,
4437 			 (pci_read_config(gparent, 0x40, 4) &
4438 			  ~(0xff << offset)) |
4439 			 (piotimings[ata_mode2idx(mode)] << offset), 4);
4440 	atadev->mode = mode;
4441     }
4442 }
4443 
4444 
4445 /*
4446  * Silicon Image Inc. (SiI) (former CMD) chipset support functions
4447  */
4448 int
4449 ata_sii_ident(device_t dev)
4450 {
4451     struct ata_pci_controller *ctlr = device_get_softc(dev);
4452     struct ata_chip_id *idx;
4453     static struct ata_chip_id ids[] =
4454     {{ ATA_SII3114,   0x00, SIIMEMIO, SII4CH,    ATA_SA150, "SiI 3114" },
4455      { ATA_SII3512,   0x02, SIIMEMIO, 0,         ATA_SA150, "SiI 3512" },
4456      { ATA_SII3112,   0x02, SIIMEMIO, 0,         ATA_SA150, "SiI 3112" },
4457      { ATA_SII3112_1, 0x02, SIIMEMIO, 0,         ATA_SA150, "SiI 3112" },
4458      { ATA_SII3512,   0x00, SIIMEMIO, SIIBUG,    ATA_SA150, "SiI 3512" },
4459      { ATA_SII3112,   0x00, SIIMEMIO, SIIBUG,    ATA_SA150, "SiI 3112" },
4460      { ATA_SII3112_1, 0x00, SIIMEMIO, SIIBUG,    ATA_SA150, "SiI 3112" },
4461      { ATA_SII3124,   0x00, SIIPRBIO, SII4CH,    ATA_SA300, "SiI 3124" },
4462      { ATA_SII3132,   0x00, SIIPRBIO, 0,         ATA_SA300, "SiI 3132" },
4463      { ATA_SII0680,   0x00, SIIMEMIO, SIISETCLK, ATA_UDMA6, "SiI 0680" },
4464      { ATA_CMD649,    0x00, 0,        SIIINTR,   ATA_UDMA5, "CMD 649" },
4465      { ATA_CMD648,    0x00, 0,        SIIINTR,   ATA_UDMA4, "CMD 648" },
4466      { ATA_CMD646,    0x07, 0,        0,         ATA_UDMA2, "CMD 646U2" },
4467      { ATA_CMD646,    0x00, 0,        0,         ATA_WDMA2, "CMD 646" },
4468      { 0, 0, 0, 0, 0, 0}};
4469     char buffer[64];
4470 
4471     if (!(idx = ata_match_chip(dev, ids)))
4472 	return ENXIO;
4473 
4474     ksprintf(buffer, "%s %s controller", idx->text, ata_mode2str(idx->max_dma));
4475     device_set_desc_copy(dev, buffer);
4476     ctlr->chip = idx;
4477     ctlr->chipinit = ata_sii_chipinit;
4478     return 0;
4479 }
4480 
4481 static int
4482 ata_sii_chipinit(device_t dev)
4483 {
4484     struct ata_pci_controller *ctlr = device_get_softc(dev);
4485 
4486     if (ata_setup_interrupt(dev))
4487 	return ENXIO;
4488 
4489     switch (ctlr->chip->cfg1) {
4490     case SIIPRBIO:
4491 	ctlr->r_type1 = SYS_RES_MEMORY;
4492 	ctlr->r_rid1 = PCIR_BAR(0);
4493 	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
4494 						    &ctlr->r_rid1, RF_ACTIVE)))
4495 	    return ENXIO;
4496 
4497 	ctlr->r_rid2 = PCIR_BAR(2);
4498 	ctlr->r_type2 = SYS_RES_MEMORY;
4499 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
4500 						    &ctlr->r_rid2, RF_ACTIVE))){
4501 	    bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1,ctlr->r_res1);
4502 	    return ENXIO;
4503 	}
4504 	ctlr->allocate = ata_siiprb_allocate;
4505 	ctlr->reset = ata_siiprb_reset;
4506 	ctlr->dmainit = ata_siiprb_dmainit;
4507 	ctlr->setmode = ata_sata_setmode;
4508 	ctlr->channels = (ctlr->chip->cfg2 == SII4CH) ? 4 : 2;
4509 
4510 	/* reset controller */
4511 	ATA_OUTL(ctlr->r_res1, 0x0040, 0x80000000);
4512 	DELAY(10000);
4513 	ATA_OUTL(ctlr->r_res1, 0x0040, 0x0000000f);
4514 
4515 	/* enable PCI interrupt */
4516 	pci_write_config(dev, PCIR_COMMAND,
4517 	pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
4518 	break;
4519 
4520     case SIIMEMIO:
4521 	ctlr->r_type2 = SYS_RES_MEMORY;
4522 	ctlr->r_rid2 = PCIR_BAR(5);
4523 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
4524 						    &ctlr->r_rid2, RF_ACTIVE)))
4525 	    return ENXIO;
4526 
4527 	if (ctlr->chip->cfg2 & SIISETCLK) {
4528 	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
4529 		pci_write_config(dev, 0x8a,
4530 				 (pci_read_config(dev, 0x8a, 1) & 0xcf)|0x10,1);
4531 	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
4532 		device_printf(dev, "%s could not set ATA133 clock\n",
4533 			      ctlr->chip->text);
4534 	}
4535 
4536 	/* if we have 4 channels enable the second set */
4537 	if (ctlr->chip->cfg2 & SII4CH) {
4538 	    ATA_OUTL(ctlr->r_res2, 0x0200, 0x00000002);
4539 	    ctlr->channels = 4;
4540 	}
4541 
4542 	/* dont block interrupts from any channel */
4543 	pci_write_config(dev, 0x48,
4544 			 (pci_read_config(dev, 0x48, 4) & ~0x03c00000), 4);
4545 
4546 	/* enable PCI interrupt as BIOS might not */
4547 	pci_write_config(dev, 0x8a, (pci_read_config(dev, 0x8a, 1) & 0x3f), 1);
4548 
4549 	ctlr->allocate = ata_sii_allocate;
4550 	if (ctlr->chip->max_dma >= ATA_SA150) {
4551 	    ctlr->reset = ata_sii_reset;
4552 	    ctlr->setmode = ata_sata_setmode;
4553 	}
4554 	else
4555 	    ctlr->setmode = ata_sii_setmode;
4556 	break;
4557 
4558     default:
4559 	if ((pci_read_config(dev, 0x51, 1) & 0x08) != 0x08) {
4560 	    device_printf(dev, "HW has secondary channel disabled\n");
4561 	    ctlr->channels = 1;
4562 	}
4563 
4564 	/* enable interrupt as BIOS might not */
4565 	pci_write_config(dev, 0x71, 0x01, 1);
4566 
4567 	ctlr->allocate = ata_cmd_allocate;
4568 	ctlr->setmode = ata_cmd_setmode;
4569 	break;
4570     }
4571     return 0;
4572 }
4573 
4574 static int
4575 ata_cmd_allocate(device_t dev)
4576 {
4577     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4578     struct ata_channel *ch = device_get_softc(dev);
4579 
4580     /* setup the usual register normal pci style */
4581     if (ata_pci_allocate(dev))
4582 	return ENXIO;
4583 
4584     if (ctlr->chip->cfg2 & SIIINTR)
4585 	ch->hw.status = ata_cmd_status;
4586 
4587     return 0;
4588 }
4589 
4590 static int
4591 ata_cmd_status(device_t dev)
4592 {
4593     struct ata_channel *ch = device_get_softc(dev);
4594     u_int8_t reg71;
4595 
4596     if (((reg71 = pci_read_config(device_get_parent(ch->dev), 0x71, 1)) &
4597 	 (ch->unit ? 0x08 : 0x04))) {
4598 	pci_write_config(device_get_parent(ch->dev), 0x71,
4599 			 reg71 & ~(ch->unit ? 0x04 : 0x08), 1);
4600 	return ata_pci_status(dev);
4601     }
4602     return 0;
4603 }
4604 
4605 static void
4606 ata_cmd_setmode(device_t dev, int mode)
4607 {
4608     device_t gparent = GRANDPARENT(dev);
4609     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4610     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
4611     struct ata_device *atadev = device_get_softc(dev);
4612     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
4613     int error;
4614 
4615     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
4616 
4617     mode = ata_check_80pin(dev, mode);
4618 
4619     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
4620 
4621     if (bootverbose)
4622 	device_printf(dev, "%ssetting %s on %s chip\n",
4623 		      (error) ? "FAILURE " : "",
4624 		      ata_mode2str(mode), ctlr->chip->text);
4625     if (!error) {
4626 	int treg = 0x54 + ((devno < 3) ? (devno << 1) : 7);
4627 	int ureg = ch->unit ? 0x7b : 0x73;
4628 
4629 	if (mode >= ATA_UDMA0) {
4630 	    int udmatimings[][2] = { { 0x31,  0xc2 }, { 0x21,  0x82 },
4631 				     { 0x11,  0x42 }, { 0x25,  0x8a },
4632 				     { 0x15,  0x4a }, { 0x05,  0x0a } };
4633 
4634 	    u_int8_t umode = pci_read_config(gparent, ureg, 1);
4635 
4636 	    umode &= ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca);
4637 	    umode |= udmatimings[mode & ATA_MODE_MASK][ATA_DEV(atadev->unit)];
4638 	    pci_write_config(gparent, ureg, umode, 1);
4639 	}
4640 	else if (mode >= ATA_WDMA0) {
4641 	    int dmatimings[] = { 0x87, 0x32, 0x3f };
4642 
4643 	    pci_write_config(gparent, treg, dmatimings[mode & ATA_MODE_MASK],1);
4644 	    pci_write_config(gparent, ureg,
4645 			     pci_read_config(gparent, ureg, 1) &
4646 			     ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca), 1);
4647 	}
4648 	else {
4649 	   int piotimings[] = { 0xa9, 0x57, 0x44, 0x32, 0x3f };
4650 	    pci_write_config(gparent, treg,
4651 			     piotimings[(mode & ATA_MODE_MASK) - ATA_PIO0], 1);
4652 	    pci_write_config(gparent, ureg,
4653 			     pci_read_config(gparent, ureg, 1) &
4654 			     ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca), 1);
4655 	}
4656 	atadev->mode = mode;
4657     }
4658 }
4659 
4660 static int
4661 ata_sii_allocate(device_t dev)
4662 {
4663     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4664     struct ata_channel *ch = device_get_softc(dev);
4665     int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2);
4666     int i;
4667 
4668     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
4669 	ch->r_io[i].res = ctlr->r_res2;
4670 	ch->r_io[i].offset = 0x80 + i + (unit01 << 6) + (unit10 << 8);
4671     }
4672     ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
4673     ch->r_io[ATA_CONTROL].offset = 0x8a + (unit01 << 6) + (unit10 << 8);
4674     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
4675     ata_default_registers(dev);
4676 
4677     ch->r_io[ATA_BMCMD_PORT].res = ctlr->r_res2;
4678     ch->r_io[ATA_BMCMD_PORT].offset = 0x00 + (unit01 << 3) + (unit10 << 8);
4679     ch->r_io[ATA_BMSTAT_PORT].res = ctlr->r_res2;
4680     ch->r_io[ATA_BMSTAT_PORT].offset = 0x02 + (unit01 << 3) + (unit10 << 8);
4681     ch->r_io[ATA_BMDTP_PORT].res = ctlr->r_res2;
4682     ch->r_io[ATA_BMDTP_PORT].offset = 0x04 + (unit01 << 3) + (unit10 << 8);
4683 
4684     if (ctlr->chip->max_dma >= ATA_SA150) {
4685 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
4686 	ch->r_io[ATA_SSTATUS].offset = 0x104 + (unit01 << 7) + (unit10 << 8);
4687 	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
4688 	ch->r_io[ATA_SERROR].offset = 0x108 + (unit01 << 7) + (unit10 << 8);
4689 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
4690 	ch->r_io[ATA_SCONTROL].offset = 0x100 + (unit01 << 7) + (unit10 << 8);
4691 	ch->flags |= ATA_NO_SLAVE;
4692 
4693 	/* enable PHY state change interrupt */
4694 	ATA_OUTL(ctlr->r_res2, 0x148 + (unit01 << 7) + (unit10 << 8),(1 << 16));
4695     }
4696 
4697     if ((ctlr->chip->cfg2 & SIIBUG) && ch->dma) {
4698 	/* work around errata in early chips */
4699 	ch->dma->boundary = 16 * DEV_BSIZE;
4700 	ch->dma->segsize = 15 * DEV_BSIZE;
4701     }
4702 
4703     ata_pci_hw(dev);
4704     ch->hw.status = ata_sii_status;
4705     return 0;
4706 }
4707 
4708 static int
4709 ata_sii_status(device_t dev)
4710 {
4711     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4712     struct ata_channel *ch = device_get_softc(dev);
4713     int offset0 = ((ch->unit & 1) << 3) + ((ch->unit & 2) << 8);
4714     int offset1 = ((ch->unit & 1) << 6) + ((ch->unit & 2) << 8);
4715 
4716     /* do we have any PHY events ? */
4717     if (ctlr->chip->max_dma >= ATA_SA150 &&
4718 	(ATA_INL(ctlr->r_res2, 0x10 + offset0) & 0x00000010))
4719 	ata_sata_phy_check_events(dev);
4720 
4721     if (ATA_INL(ctlr->r_res2, 0xa0 + offset1) & 0x00000800)
4722 	return ata_pci_status(dev);
4723     else
4724 	return 0;
4725 }
4726 
4727 static void
4728 ata_sii_reset(device_t dev)
4729 {
4730     if (ata_sata_phy_reset(dev))
4731 	ata_generic_reset(dev);
4732 }
4733 
4734 static void
4735 ata_sii_setmode(device_t dev, int mode)
4736 {
4737     device_t gparent = GRANDPARENT(dev);
4738     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4739     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
4740     struct ata_device *atadev = device_get_softc(dev);
4741     int rego = (ch->unit << 4) + (ATA_DEV(atadev->unit) << 1);
4742     int mreg = ch->unit ? 0x84 : 0x80;
4743     int mask = 0x03 << (ATA_DEV(atadev->unit) << 2);
4744     int mval = pci_read_config(gparent, mreg, 1) & ~mask;
4745     int error;
4746 
4747     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
4748 
4749     if (ctlr->chip->cfg2 & SIISETCLK) {
4750 	if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x79, 1) &
4751 				 (ch->unit ? 0x02 : 0x01))) {
4752 	    ata_print_cable(dev, "controller");
4753 	    mode = ATA_UDMA2;
4754 	}
4755     }
4756     else
4757 	mode = ata_check_80pin(dev, mode);
4758 
4759     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
4760 
4761     if (bootverbose)
4762 	device_printf(dev, "%ssetting %s on %s chip\n",
4763 		      (error) ? "FAILURE " : "",
4764 		      ata_mode2str(mode), ctlr->chip->text);
4765     if (error)
4766 	return;
4767 
4768     if (mode >= ATA_UDMA0) {
4769 	u_int8_t udmatimings[] = { 0xf, 0xb, 0x7, 0x5, 0x3, 0x2, 0x1 };
4770 	u_int8_t ureg = 0xac + rego;
4771 
4772 	pci_write_config(gparent, mreg,
4773 			 mval | (0x03 << (ATA_DEV(atadev->unit) << 2)), 1);
4774 	pci_write_config(gparent, ureg,
4775 			 (pci_read_config(gparent, ureg, 1) & ~0x3f) |
4776 			 udmatimings[mode & ATA_MODE_MASK], 1);
4777 
4778     }
4779     else if (mode >= ATA_WDMA0) {
4780 	u_int8_t dreg = 0xa8 + rego;
4781 	u_int16_t dmatimings[] = { 0x2208, 0x10c2, 0x10c1 };
4782 
4783 	pci_write_config(gparent, mreg,
4784 			 mval | (0x02 << (ATA_DEV(atadev->unit) << 2)), 1);
4785 	pci_write_config(gparent, dreg, dmatimings[mode & ATA_MODE_MASK], 2);
4786 
4787     }
4788     else {
4789 	u_int8_t preg = 0xa4 + rego;
4790 	u_int16_t piotimings[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
4791 
4792 	pci_write_config(gparent, mreg,
4793 			 mval | (0x01 << (ATA_DEV(atadev->unit) << 2)), 1);
4794 	pci_write_config(gparent, preg, piotimings[mode & ATA_MODE_MASK], 2);
4795     }
4796     atadev->mode = mode;
4797 }
4798 
4799 struct ata_siiprb_dma_prdentry {
4800     u_int64_t addr;
4801     u_int32_t count;
4802     u_int32_t control;
4803 } __packed;
4804 
4805 struct ata_siiprb_ata_command {
4806     u_int32_t reserved0;
4807     struct ata_siiprb_dma_prdentry prd[126];
4808 } __packed;
4809 
4810 struct ata_siiprb_atapi_command {
4811     u_int8_t cdb[16];
4812     struct ata_siiprb_dma_prdentry prd[125];
4813 } __packed;
4814 
4815 struct ata_siiprb_command {
4816     u_int16_t control;
4817     u_int16_t protocol_override;
4818     u_int32_t transfer_count;
4819     u_int8_t fis[20];
4820     union {
4821 	struct ata_siiprb_ata_command ata;
4822 	struct ata_siiprb_atapi_command atapi;
4823     } u;
4824 } __packed;
4825 
4826 static int
4827 ata_siiprb_allocate(device_t dev)
4828 {
4829     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4830     struct ata_channel *ch = device_get_softc(dev);
4831     int offset = ch->unit * 0x2000;
4832 
4833     /* set the SATA resources */
4834     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
4835     ch->r_io[ATA_SSTATUS].offset = 0x1f04 + offset;
4836     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
4837     ch->r_io[ATA_SERROR].offset = 0x1f08 + offset;
4838     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
4839     ch->r_io[ATA_SCONTROL].offset = 0x1f00 + offset;
4840     ch->r_io[ATA_SACTIVE].res = ctlr->r_res2;
4841     ch->r_io[ATA_SACTIVE].offset = 0x1f0c + offset;
4842 
4843     ch->hw.begin_transaction = ata_siiprb_begin_transaction;
4844     ch->hw.end_transaction = ata_siiprb_end_transaction;
4845     ch->hw.status = ata_siiprb_status;
4846     ch->hw.command = NULL;	/* not used here */
4847     return 0;
4848 }
4849 
4850 static int
4851 ata_siiprb_status(device_t dev)
4852 {
4853     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4854     struct ata_channel *ch = device_get_softc(dev);
4855     int offset = ch->unit * 0x2000;
4856 
4857     if ((ATA_INL(ctlr->r_res1, 0x0044) & (1 << ch->unit))) {
4858 	u_int32_t istatus = ATA_INL(ctlr->r_res2, 0x1008 + offset);
4859 
4860 	/* do we have any PHY events ? */
4861 	ata_sata_phy_check_events(dev);
4862 
4863 	/* clear interrupt(s) */
4864 	ATA_OUTL(ctlr->r_res2, 0x1008 + offset, istatus);
4865 
4866 	/* do we have any device action ? */
4867 	return (istatus & 0x00000001);
4868     }
4869     return 0;
4870 }
4871 
4872 static int
4873 ata_siiprb_begin_transaction(struct ata_request *request)
4874 {
4875     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
4876     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
4877     struct ata_siiprb_command *prb;
4878     int offset = ch->unit * 0x2000;
4879     u_int64_t prb_bus;
4880     int tag = 0, dummy;
4881 
4882     /* check for 48 bit access and convert if needed */
4883     ata_modify_if_48bit(request);
4884 
4885     /* get a piece of the workspace for this request */
4886     prb = (struct ata_siiprb_command *)
4887 	(ch->dma->work + (sizeof(struct ata_siiprb_command) * tag));
4888 
4889     /* set basic prd options ata/atapi etc etc */
4890     bzero(prb, sizeof(struct ata_siiprb_command));
4891 
4892     /* setup the FIS for this request */
4893     if (!ata_request2fis_h2d(request, &prb->fis[0])) {
4894         device_printf(request->dev, "setting up SATA FIS failed\n");
4895         request->result = EIO;
4896         return ATA_OP_FINISHED;
4897     }
4898 
4899     /* if request moves data setup and load SG list */
4900     if (request->flags & (ATA_R_READ | ATA_R_WRITE)) {
4901 	struct ata_siiprb_dma_prdentry *prd;
4902 
4903 	if (request->flags & ATA_R_ATAPI)
4904 	    prd = &prb->u.atapi.prd[0];
4905 	else
4906 	    prd = &prb->u.ata.prd[0];
4907 	if (ch->dma->load(ch->dev, request->data, request->bytecount,
4908 			  request->flags & ATA_R_READ, prd, &dummy)) {
4909 	    device_printf(request->dev, "setting up DMA failed\n");
4910 	    request->result = EIO;
4911 	    return ATA_OP_FINISHED;
4912 	}
4913     }
4914 
4915     /* activate the prb */
4916     prb_bus = ch->dma->work_bus + (sizeof(struct ata_siiprb_command) * tag);
4917     ATA_OUTL(ctlr->r_res2,
4918 	     0x1c00 + offset + (tag * sizeof(u_int64_t)), prb_bus);
4919     ATA_OUTL(ctlr->r_res2,
4920 	     0x1c04 + offset + (tag * sizeof(u_int64_t)), prb_bus>>32);
4921 
4922     /* start the timeout */
4923     callout_reset(&request->callout, request->timeout * hz,
4924                   (timeout_t*)ata_timeout, request);
4925     return ATA_OP_CONTINUES;
4926 }
4927 
4928 static int
4929 ata_siiprb_end_transaction(struct ata_request *request)
4930 {
4931     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
4932     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
4933     struct ata_siiprb_command *prb;
4934     int offset = ch->unit * 0x2000;
4935     int error, tag = 0;
4936 
4937     /* kill the timeout */
4938     callout_stop(&request->callout);
4939 
4940     prb = (struct ata_siiprb_command *)
4941 	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + (tag << 7) + offset);
4942 
4943     /* if error status get details */
4944     request->status = prb->fis[2];
4945     if (request->status & ATA_S_ERROR)
4946 	request->error = prb->fis[3];
4947 
4948     /* update progress */
4949     if (!(request->status & ATA_S_ERROR) && !(request->flags & ATA_R_TIMEOUT)) {
4950 	if (request->flags & ATA_R_READ)
4951 	    request->donecount = prb->transfer_count;
4952 	else
4953 	    request->donecount = request->bytecount;
4954     }
4955 
4956     /* any controller errors flagged ? */
4957     if ((error = ATA_INL(ctlr->r_res2, 0x1024 + offset))) {
4958 	kprintf("ata_siiprb_end_transaction %s error=%08x\n",
4959 		ata_cmd2str(request), error);
4960     }
4961 
4962     /* release SG list etc */
4963     ch->dma->unload(ch->dev);
4964 
4965     return ATA_OP_FINISHED;
4966 }
4967 
4968 static void
4969 ata_siiprb_reset(device_t dev)
4970 {
4971     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4972     struct ata_channel *ch = device_get_softc(dev);
4973     int offset = ch->unit * 0x2000;
4974     struct ata_siiprb_command *prb;
4975     u_int64_t prb_bus;
4976     u_int32_t status, signature;
4977     int timeout, tag = 0;
4978 
4979     /* reset channel HW */
4980     ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000001);
4981     DELAY(1000);
4982     ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000001);
4983     DELAY(10000);
4984 
4985     /* poll for channel ready */
4986     for (timeout = 0; timeout < 1000; timeout++) {
4987         if ((status = ATA_INL(ctlr->r_res2, 0x1000 + offset)) & 0x00040000)
4988             break;
4989         DELAY(1000);
4990     }
4991     if (timeout >= 1000) {
4992 	device_printf(ch->dev, "channel HW reset timeout reset failure\n");
4993 	ch->devices = 0;
4994 	goto finish;
4995     }
4996     if (bootverbose)
4997 	device_printf(ch->dev, "channel HW reset time=%dms\n", timeout * 1);
4998 
4999     /* reset phy */
5000     if (!ata_sata_phy_reset(dev)) {
5001 	if (bootverbose)
5002 	    device_printf(ch->dev, "phy reset found no device\n");
5003 	ch->devices = 0;
5004 	goto finish;
5005     }
5006 
5007     /* get a piece of the workspace for a soft reset request */
5008     prb = (struct ata_siiprb_command *)
5009 	(ch->dma->work + (sizeof(struct ata_siiprb_command) * tag));
5010     bzero(prb, sizeof(struct ata_siiprb_command));
5011     prb->control = htole16(0x0080);
5012 
5013     /* activate the soft reset prb */
5014     prb_bus = ch->dma->work_bus + (sizeof(struct ata_siiprb_command) * tag);
5015     ATA_OUTL(ctlr->r_res2,
5016 	     0x1c00 + offset + (tag * sizeof(u_int64_t)), prb_bus);
5017     ATA_OUTL(ctlr->r_res2,
5018 	     0x1c04 + offset + (tag * sizeof(u_int64_t)), prb_bus>>32);
5019 
5020     /* poll for channel ready */
5021     for (timeout = 0; timeout < 1000; timeout++) {
5022         DELAY(1000);
5023         if ((status = ATA_INL(ctlr->r_res2, 0x1008 + offset)) & 0x00010000)
5024             break;
5025     }
5026     if (timeout >= 1000) {
5027 	device_printf(ch->dev, "reset timeout - no device found\n");
5028 	ch->devices = 0;
5029 	goto finish;
5030     }
5031     if (bootverbose)
5032 	device_printf(ch->dev, "soft reset exec time=%dms status=%08x\n",
5033 			timeout, status);
5034 
5035     /* find out whats there */
5036     prb = (struct ata_siiprb_command *)
5037 	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + (tag << 7) + offset);
5038     signature =
5039 	prb->fis[12]|(prb->fis[4]<<8)|(prb->fis[5]<<16)|(prb->fis[6]<<24);
5040     if (bootverbose)
5041 	device_printf(ch->dev, "signature=%08x\n", signature);
5042     switch (signature) {
5043     case 0xeb140101:
5044 	ch->devices = ATA_ATAPI_MASTER;
5045 	device_printf(ch->dev, "SATA ATAPI devices not supported yet\n");
5046 	ch->devices = 0;
5047 	break;
5048     case 0x96690101:
5049 	ch->devices = ATA_PORTMULTIPLIER;
5050 	device_printf(ch->dev, "Portmultipliers not supported yet\n");
5051 	ch->devices = 0;
5052 	break;
5053     case 0x00000101:
5054 	ch->devices = ATA_ATA_MASTER;
5055 	break;
5056     default:
5057 	ch->devices = 0;
5058     }
5059 
5060 finish:
5061     /* clear interrupt(s) */
5062     ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x000008ff);
5063 
5064     /* require explicit interrupt ack */
5065     ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000008);
5066 
5067     /* 64bit mode */
5068     ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000400);
5069 
5070     /* enable interrupts wanted */
5071     ATA_OUTL(ctlr->r_res2, 0x1010 + offset, 0x000000ff);
5072 }
5073 
5074 static void
5075 ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
5076 {
5077     struct ata_dmasetprd_args *args = xsc;
5078     struct ata_siiprb_dma_prdentry *prd = args->dmatab;
5079     int i;
5080 
5081     if ((args->error = error))
5082 	return;
5083 
5084     for (i = 0; i < nsegs; i++) {
5085 	prd[i].addr = htole64(segs[i].ds_addr);
5086 	prd[i].count = htole32(segs[i].ds_len);
5087     }
5088     prd[i - 1].control = htole32(ATA_DMA_EOT);
5089 }
5090 
5091 static void
5092 ata_siiprb_dmainit(device_t dev)
5093 {
5094     struct ata_channel *ch = device_get_softc(dev);
5095 
5096     ata_dmainit(dev);
5097     if (ch->dma) {
5098 	/* note start and stop are not used here */
5099 	ch->dma->setprd = ata_siiprb_dmasetprd;
5100 	ch->dma->max_address = BUS_SPACE_MAXADDR;
5101     }
5102 }
5103 
5104 
5105 /*
5106  * Silicon Integrated Systems Corp. (SiS) chipset support functions
5107  */
5108 int
5109 ata_sis_ident(device_t dev)
5110 {
5111     struct ata_pci_controller *ctlr = device_get_softc(dev);
5112     struct ata_chip_id *idx;
5113     static struct ata_chip_id ids[] =
5114     {{ ATA_SIS182,  0x00, SISSATA,   0, ATA_SA150, "182" }, /* south */
5115      { ATA_SIS181,  0x00, SISSATA,   0, ATA_SA150, "181" }, /* south */
5116      { ATA_SIS180,  0x00, SISSATA,   0, ATA_SA150, "180" }, /* south */
5117      { ATA_SIS965,  0x00, SIS133NEW, 0, ATA_UDMA6, "965" }, /* south */
5118      { ATA_SIS964,  0x00, SIS133NEW, 0, ATA_UDMA6, "964" }, /* south */
5119      { ATA_SIS963,  0x00, SIS133NEW, 0, ATA_UDMA6, "963" }, /* south */
5120      { ATA_SIS962,  0x00, SIS133NEW, 0, ATA_UDMA6, "962" }, /* south */
5121 
5122      { ATA_SIS745,  0x00, SIS100NEW, 0, ATA_UDMA5, "745" }, /* 1chip */
5123      { ATA_SIS735,  0x00, SIS100NEW, 0, ATA_UDMA5, "735" }, /* 1chip */
5124      { ATA_SIS733,  0x00, SIS100NEW, 0, ATA_UDMA5, "733" }, /* 1chip */
5125      { ATA_SIS730,  0x00, SIS100OLD, 0, ATA_UDMA5, "730" }, /* 1chip */
5126 
5127      { ATA_SIS635,  0x00, SIS100NEW, 0, ATA_UDMA5, "635" }, /* 1chip */
5128      { ATA_SIS633,  0x00, SIS100NEW, 0, ATA_UDMA5, "633" }, /* unknown */
5129      { ATA_SIS630,  0x30, SIS100OLD, 0, ATA_UDMA5, "630S"}, /* 1chip */
5130      { ATA_SIS630,  0x00, SIS66,     0, ATA_UDMA4, "630" }, /* 1chip */
5131      { ATA_SIS620,  0x00, SIS66,     0, ATA_UDMA4, "620" }, /* 1chip */
5132 
5133      { ATA_SIS550,  0x00, SIS66,     0, ATA_UDMA5, "550" },
5134      { ATA_SIS540,  0x00, SIS66,     0, ATA_UDMA4, "540" },
5135      { ATA_SIS530,  0x00, SIS66,     0, ATA_UDMA4, "530" },
5136 
5137      { ATA_SIS5513, 0xc2, SIS33,     1, ATA_UDMA2, "5513" },
5138      { ATA_SIS5513, 0x00, SIS33,     1, ATA_WDMA2, "5513" },
5139      { 0, 0, 0, 0, 0, 0 }};
5140     char buffer[64];
5141     int found = 0;
5142 
5143     if (!(idx = ata_find_chip(dev, ids, -pci_get_slot(dev))))
5144 	return ENXIO;
5145 
5146     if (idx->cfg2 && !found) {
5147 	u_int8_t reg57 = pci_read_config(dev, 0x57, 1);
5148 
5149 	pci_write_config(dev, 0x57, (reg57 & 0x7f), 1);
5150 	if (pci_read_config(dev, PCIR_DEVVENDOR, 4) == ATA_SIS5518) {
5151 	    found = 1;
5152 	    idx->cfg1 = SIS133NEW;
5153 	    idx->max_dma = ATA_UDMA6;
5154 	    ksprintf(buffer, "SiS 962/963 %s controller",
5155 		    ata_mode2str(idx->max_dma));
5156 	}
5157 	pci_write_config(dev, 0x57, reg57, 1);
5158     }
5159     if (idx->cfg2 && !found) {
5160 	u_int8_t reg4a = pci_read_config(dev, 0x4a, 1);
5161 
5162 	pci_write_config(dev, 0x4a, (reg4a | 0x10), 1);
5163 	if (pci_read_config(dev, PCIR_DEVVENDOR, 4) == ATA_SIS5517) {
5164 	    struct ata_chip_id id[] =
5165 		{{ ATA_SISSOUTH, 0x10, 0, 0, 0, "" }, { 0, 0, 0, 0, 0, 0 }};
5166 
5167 	    found = 1;
5168 	    if (ata_find_chip(dev, id, pci_get_slot(dev))) {
5169 		idx->cfg1 = SIS133OLD;
5170 		idx->max_dma = ATA_UDMA6;
5171 	    }
5172 	    else {
5173 		idx->cfg1 = SIS100NEW;
5174 		idx->max_dma = ATA_UDMA5;
5175 	    }
5176 	    ksprintf(buffer, "SiS 961 %s controller",ata_mode2str(idx->max_dma));
5177 	}
5178 	pci_write_config(dev, 0x4a, reg4a, 1);
5179     }
5180     if (!found)
5181 	ksprintf(buffer,"SiS %s %s controller",
5182 		idx->text, ata_mode2str(idx->max_dma));
5183 
5184     device_set_desc_copy(dev, buffer);
5185     ctlr->chip = idx;
5186     ctlr->chipinit = ata_sis_chipinit;
5187     return 0;
5188 }
5189 
5190 static int
5191 ata_sis_chipinit(device_t dev)
5192 {
5193     struct ata_pci_controller *ctlr = device_get_softc(dev);
5194 
5195     if (ata_setup_interrupt(dev))
5196 	return ENXIO;
5197 
5198     switch (ctlr->chip->cfg1) {
5199     case SIS33:
5200 	break;
5201     case SIS66:
5202     case SIS100OLD:
5203 	pci_write_config(dev, 0x52, pci_read_config(dev, 0x52, 1) & ~0x04, 1);
5204 	break;
5205     case SIS100NEW:
5206     case SIS133OLD:
5207 	pci_write_config(dev, 0x49, pci_read_config(dev, 0x49, 1) & ~0x01, 1);
5208 	break;
5209     case SIS133NEW:
5210 	pci_write_config(dev, 0x50, pci_read_config(dev, 0x50, 2) | 0x0008, 2);
5211 	pci_write_config(dev, 0x52, pci_read_config(dev, 0x52, 2) | 0x0008, 2);
5212 	break;
5213     case SISSATA:
5214 	ctlr->r_type2 = SYS_RES_IOPORT;
5215 	ctlr->r_rid2 = PCIR_BAR(5);
5216 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
5217 						   &ctlr->r_rid2, RF_ACTIVE))) {
5218 	    ctlr->allocate = ata_sis_allocate;
5219 	    ctlr->reset = ata_sis_reset;
5220 
5221 	    /* enable PCI interrupt */
5222 	    pci_write_config(dev, PCIR_COMMAND,
5223 			     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400,2);
5224 	}
5225 	ctlr->setmode = ata_sata_setmode;
5226 	return 0;
5227     default:
5228 	return ENXIO;
5229     }
5230     ctlr->setmode = ata_sis_setmode;
5231     return 0;
5232 }
5233 
5234 static int
5235 ata_sis_allocate(device_t dev)
5236 {
5237     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
5238     struct ata_channel *ch = device_get_softc(dev);
5239     int offset = ch->unit << ((ctlr->chip->chipid == ATA_SIS182) ? 5 : 6);
5240 
5241     /* setup the usual register normal pci style */
5242     if (ata_pci_allocate(dev))
5243 	return ENXIO;
5244 
5245     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
5246     ch->r_io[ATA_SSTATUS].offset = 0x00 + offset;
5247     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
5248     ch->r_io[ATA_SERROR].offset = 0x04 + offset;
5249     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
5250     ch->r_io[ATA_SCONTROL].offset = 0x08 + offset;
5251     ch->flags |= ATA_NO_SLAVE;
5252 
5253     /* XXX SOS PHY hotplug handling missing in SiS chip ?? */
5254     /* XXX SOS unknown how to enable PHY state change interrupt */
5255     return 0;
5256 }
5257 
5258 static void
5259 ata_sis_reset(device_t dev)
5260 {
5261     if (ata_sata_phy_reset(dev))
5262 	ata_generic_reset(dev);
5263 }
5264 
5265 static void
5266 ata_sis_setmode(device_t dev, int mode)
5267 {
5268     device_t gparent = GRANDPARENT(dev);
5269     struct ata_pci_controller *ctlr = device_get_softc(gparent);
5270     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
5271     struct ata_device *atadev = device_get_softc(dev);
5272     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
5273     int error;
5274 
5275     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
5276 
5277     if (ctlr->chip->cfg1 == SIS133NEW) {
5278 	if (mode > ATA_UDMA2 &&
5279 	    pci_read_config(gparent, ch->unit ? 0x52 : 0x50,2) & 0x8000) {
5280 	    ata_print_cable(dev, "controller");
5281 	    mode = ATA_UDMA2;
5282 	}
5283     }
5284     else {
5285 	if (mode > ATA_UDMA2 &&
5286 	    pci_read_config(gparent, 0x48, 1)&(ch->unit ? 0x20 : 0x10)) {
5287 	    ata_print_cable(dev, "controller");
5288 	    mode = ATA_UDMA2;
5289 	}
5290     }
5291 
5292     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
5293 
5294     if (bootverbose)
5295 	device_printf(dev, "%ssetting %s on %s chip\n",
5296 		      (error) ? "FAILURE " : "",
5297 		      ata_mode2str(mode), ctlr->chip->text);
5298     if (!error) {
5299 	switch (ctlr->chip->cfg1) {
5300 	case SIS133NEW: {
5301 	    u_int32_t timings[] =
5302 		{ 0x28269008, 0x0c266008, 0x04263008, 0x0c0a3008, 0x05093008,
5303 		  0x22196008, 0x0c0a3008, 0x05093008, 0x050939fc, 0x050936ac,
5304 		  0x0509347c, 0x0509325c, 0x0509323c, 0x0509322c, 0x0509321c};
5305 	    u_int32_t reg;
5306 
5307 	    reg = (pci_read_config(gparent, 0x57, 1)&0x40?0x70:0x40)+(devno<<2);
5308 	    pci_write_config(gparent, reg, timings[ata_mode2idx(mode)], 4);
5309 	    break;
5310 	    }
5311 	case SIS133OLD: {
5312 	    u_int16_t timings[] =
5313 	     { 0x00cb, 0x0067, 0x0044, 0x0033, 0x0031, 0x0044, 0x0033, 0x0031,
5314 	       0x8f31, 0x8a31, 0x8731, 0x8531, 0x8331, 0x8231, 0x8131 };
5315 
5316 	    u_int16_t reg = 0x40 + (devno << 1);
5317 
5318 	    pci_write_config(gparent, reg, timings[ata_mode2idx(mode)], 2);
5319 	    break;
5320 	    }
5321 	case SIS100NEW: {
5322 	    u_int16_t timings[] =
5323 		{ 0x00cb, 0x0067, 0x0044, 0x0033, 0x0031, 0x0044, 0x0033,
5324 		  0x0031, 0x8b31, 0x8731, 0x8531, 0x8431, 0x8231, 0x8131 };
5325 	    u_int16_t reg = 0x40 + (devno << 1);
5326 
5327 	    pci_write_config(gparent, reg, timings[ata_mode2idx(mode)], 2);
5328 	    break;
5329 	    }
5330 	case SIS100OLD:
5331 	case SIS66:
5332 	case SIS33: {
5333 	    u_int16_t timings[] =
5334 		{ 0x0c0b, 0x0607, 0x0404, 0x0303, 0x0301, 0x0404, 0x0303,
5335 		  0x0301, 0xf301, 0xd301, 0xb301, 0xa301, 0x9301, 0x8301 };
5336 	    u_int16_t reg = 0x40 + (devno << 1);
5337 
5338 	    pci_write_config(gparent, reg, timings[ata_mode2idx(mode)], 2);
5339 	    break;
5340 	    }
5341 	}
5342 	atadev->mode = mode;
5343     }
5344 }
5345 
5346 
5347 /* VIA Technologies Inc. chipset support functions */
5348 int
5349 ata_via_ident(device_t dev)
5350 {
5351     struct ata_pci_controller *ctlr = device_get_softc(dev);
5352     struct ata_chip_id *idx;
5353     static struct ata_chip_id ids[] =
5354     {{ ATA_VIA82C586, 0x02, VIA33,  0x00,    ATA_UDMA2, "82C586B" },
5355      { ATA_VIA82C586, 0x00, VIA33,  0x00,    ATA_WDMA2, "82C586" },
5356      { ATA_VIA82C596, 0x12, VIA66,  VIACLK,  ATA_UDMA4, "82C596B" },
5357      { ATA_VIA82C596, 0x00, VIA33,  0x00,    ATA_UDMA2, "82C596" },
5358      { ATA_VIA82C686, 0x40, VIA100, VIABUG,  ATA_UDMA5, "82C686B"},
5359      { ATA_VIA82C686, 0x10, VIA66,  VIACLK,  ATA_UDMA4, "82C686A" },
5360      { ATA_VIA82C686, 0x00, VIA33,  0x00,    ATA_UDMA2, "82C686" },
5361      { ATA_VIA8231,   0x00, VIA100, VIABUG,  ATA_UDMA5, "8231" },
5362      { ATA_VIA8233,   0x00, VIA100, 0x00,    ATA_UDMA5, "8233" },
5363      { ATA_VIA8233C,  0x00, VIA100, 0x00,    ATA_UDMA5, "8233C" },
5364      { ATA_VIA8233A,  0x00, VIA133, 0x00,    ATA_UDMA6, "8233A" },
5365      { ATA_VIA8235,   0x00, VIA133, 0x00,    ATA_UDMA6, "8235" },
5366      { ATA_VIA8237,   0x00, VIA133, 0x00,    ATA_UDMA6, "8237" },
5367      { ATA_VIA8237A,  0x00, VIA133, 0x00,    ATA_UDMA6, "8237A" },
5368      { ATA_VIA8251,   0x00, VIA133, 0x00,    ATA_UDMA6, "8251" },
5369      { 0, 0, 0, 0, 0, 0 }};
5370     static struct ata_chip_id new_ids[] =
5371     {{ ATA_VIA6410,   0x00, 0,      0x00,    ATA_UDMA6, "6410" },
5372      { ATA_VIA6420,   0x00, 7,      0x00,    ATA_SA150, "6420" },
5373      { ATA_VIA6421,   0x00, 6,      VIABAR,  ATA_SA150, "6421" },
5374      { ATA_VIA8237A,  0x00, 7,      0x00,    ATA_SA150, "8237A" },
5375      { ATA_VIA8237S,  0x00, 7,      0x00,    ATA_SA150, "8237S" },
5376      { ATA_VIA8251,   0x00, 0,      VIAAHCI, ATA_SA300, "8251" },
5377      { 0, 0, 0, 0, 0, 0 }};
5378     char buffer[64];
5379 
5380     if (pci_get_devid(dev) == ATA_VIA82C571) {
5381 	if (!(idx = ata_find_chip(dev, ids, -99)))
5382 	    return ENXIO;
5383     }
5384     else {
5385 	if (!(idx = ata_match_chip(dev, new_ids)))
5386 	    return ENXIO;
5387     }
5388 
5389     ksprintf(buffer, "VIA %s %s controller",
5390 	    idx->text, ata_mode2str(idx->max_dma));
5391     device_set_desc_copy(dev, buffer);
5392     ctlr->chip = idx;
5393     ctlr->chipinit = ata_via_chipinit;
5394     return 0;
5395 }
5396 
5397 static int
5398 ata_via_chipinit(device_t dev)
5399 {
5400     struct ata_pci_controller *ctlr = device_get_softc(dev);
5401 
5402     if (ata_setup_interrupt(dev))
5403 	return ENXIO;
5404 
5405     if (ctlr->chip->max_dma >= ATA_SA150) {
5406 	/* do we have AHCI capability ? */
5407 	if ((ctlr->chip->cfg2 == VIAAHCI) && ata_ahci_chipinit(dev) != ENXIO)
5408 	    return 0;
5409 
5410 	ctlr->r_type2 = SYS_RES_IOPORT;
5411 	ctlr->r_rid2 = PCIR_BAR(5);
5412 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
5413 						   &ctlr->r_rid2, RF_ACTIVE))) {
5414 	    ctlr->allocate = ata_via_allocate;
5415 	    ctlr->reset = ata_via_reset;
5416 
5417 	    /* enable PCI interrupt */
5418 	    pci_write_config(dev, PCIR_COMMAND,
5419 			     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400,2);
5420 	}
5421 
5422 	if (ctlr->chip->cfg2 & VIABAR) {
5423 	    ctlr->channels = 3;
5424 	    ctlr->setmode = ata_via_setmode;
5425 	}
5426 	else
5427 	    ctlr->setmode = ata_sata_setmode;
5428 	return 0;
5429     }
5430 
5431     /* prepare for ATA-66 on the 82C686a and 82C596b */
5432     if (ctlr->chip->cfg2 & VIACLK)
5433 	pci_write_config(dev, 0x50, 0x030b030b, 4);
5434 
5435     /* the southbridge might need the data corruption fix */
5436     if (ctlr->chip->cfg2 & VIABUG)
5437 	ata_via_southbridge_fixup(dev);
5438 
5439     /* set fifo configuration half'n'half */
5440     pci_write_config(dev, 0x43,
5441 		     (pci_read_config(dev, 0x43, 1) & 0x90) | 0x2a, 1);
5442 
5443     /* set status register read retry */
5444     pci_write_config(dev, 0x44, pci_read_config(dev, 0x44, 1) | 0x08, 1);
5445 
5446     /* set DMA read & end-of-sector fifo flush */
5447     pci_write_config(dev, 0x46,
5448 		     (pci_read_config(dev, 0x46, 1) & 0x0c) | 0xf0, 1);
5449 
5450     /* set sector size */
5451     pci_write_config(dev, 0x60, DEV_BSIZE, 2);
5452     pci_write_config(dev, 0x68, DEV_BSIZE, 2);
5453 
5454     ctlr->setmode = ata_via_family_setmode;
5455     return 0;
5456 }
5457 
5458 static int
5459 ata_via_allocate(device_t dev)
5460 {
5461     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
5462     struct ata_channel *ch = device_get_softc(dev);
5463 
5464     /* newer SATA chips has resources in one BAR for each channel */
5465     if (ctlr->chip->cfg2 & VIABAR) {
5466 	struct resource *r_io;
5467 	int i, rid;
5468 
5469 	rid = PCIR_BAR(ch->unit);
5470 	if (!(r_io = bus_alloc_resource_any(device_get_parent(dev),
5471 					    SYS_RES_IOPORT,
5472 					    &rid, RF_ACTIVE)))
5473 	    return ENXIO;
5474 
5475 	for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
5476 	    ch->r_io[i].res = r_io;
5477 	    ch->r_io[i].offset = i;
5478 	}
5479 	ch->r_io[ATA_CONTROL].res = r_io;
5480 	ch->r_io[ATA_CONTROL].offset = 2 + ATA_IOSIZE;
5481 	ch->r_io[ATA_IDX_ADDR].res = r_io;
5482 	ata_default_registers(dev);
5483 	for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
5484 	    ch->r_io[i].res = ctlr->r_res1;
5485 	    ch->r_io[i].offset = (i - ATA_BMCMD_PORT)+(ch->unit * ATA_BMIOSIZE);
5486 	}
5487 	ata_pci_hw(dev);
5488 	if (ch->unit >= 2)
5489 	    return 0;
5490     }
5491     else {
5492 	/* setup the usual register normal pci style */
5493 	if (ata_pci_allocate(dev))
5494 	    return ENXIO;
5495     }
5496 
5497     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
5498     ch->r_io[ATA_SSTATUS].offset = (ch->unit << ctlr->chip->cfg1);
5499     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
5500     ch->r_io[ATA_SERROR].offset = 0x04 + (ch->unit << ctlr->chip->cfg1);
5501     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
5502     ch->r_io[ATA_SCONTROL].offset = 0x08 + (ch->unit << ctlr->chip->cfg1);
5503     ch->flags |= ATA_NO_SLAVE;
5504 
5505     /* XXX SOS PHY hotplug handling missing in VIA chip ?? */
5506     /* XXX SOS unknown how to enable PHY state change interrupt */
5507     return 0;
5508 }
5509 
5510 static void
5511 ata_via_reset(device_t dev)
5512 {
5513     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
5514     struct ata_channel *ch = device_get_softc(dev);
5515 
5516     if ((ctlr->chip->cfg2 & VIABAR) && (ch->unit > 1))
5517 	ata_generic_reset(dev);
5518     else
5519 	if (ata_sata_phy_reset(dev))
5520 	    ata_generic_reset(dev);
5521 }
5522 
5523 static void
5524 ata_via_setmode(device_t dev, int mode)
5525 {
5526     device_t gparent = GRANDPARENT(dev);
5527     struct ata_pci_controller *ctlr = device_get_softc(gparent);
5528     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
5529     struct ata_device *atadev = device_get_softc(dev);
5530     int error;
5531 
5532     if ((ctlr->chip->cfg2 & VIABAR) && (ch->unit > 1)) {
5533 	u_int8_t pio_timings[] = { 0xa8, 0x65, 0x65, 0x32, 0x20,
5534 				   0x65, 0x32, 0x20,
5535 				   0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
5536 	u_int8_t dma_timings[] = { 0xee, 0xe8, 0xe6, 0xe4, 0xe2, 0xe1, 0xe0 };
5537 
5538 	mode = ata_check_80pin(dev, ata_limit_mode(dev, mode, ATA_UDMA6));
5539 	error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
5540 	if (bootverbose)
5541 	    device_printf(dev, "%ssetting %s on %s chip\n",
5542 			  (error) ? "FAILURE " : "", ata_mode2str(mode),
5543 			  ctlr->chip->text);
5544 	if (!error) {
5545 	    pci_write_config(gparent, 0xab, pio_timings[ata_mode2idx(mode)], 1);
5546 	    if (mode >= ATA_UDMA0)
5547 		pci_write_config(gparent, 0xb3,
5548 				 dma_timings[mode & ATA_MODE_MASK], 1);
5549 	    atadev->mode = mode;
5550 	}
5551     }
5552     else
5553 	ata_sata_setmode(dev, mode);
5554 }
5555 
5556 static void
5557 ata_via_southbridge_fixup(device_t dev)
5558 {
5559     device_t *children;
5560     int nchildren, i;
5561 
5562     if (device_get_children(device_get_parent(dev), &children, &nchildren))
5563 	return;
5564 
5565     for (i = 0; i < nchildren; i++) {
5566 	if (pci_get_devid(children[i]) == ATA_VIA8363 ||
5567 	    pci_get_devid(children[i]) == ATA_VIA8371 ||
5568 	    pci_get_devid(children[i]) == ATA_VIA8662 ||
5569 	    pci_get_devid(children[i]) == ATA_VIA8361) {
5570 	    u_int8_t reg76 = pci_read_config(children[i], 0x76, 1);
5571 
5572 	    if ((reg76 & 0xf0) != 0xd0) {
5573 		device_printf(dev,
5574 		"Correcting VIA config for southbridge data corruption bug\n");
5575 		pci_write_config(children[i], 0x75, 0x80, 1);
5576 		pci_write_config(children[i], 0x76, (reg76 & 0x0f) | 0xd0, 1);
5577 	    }
5578 	    break;
5579 	}
5580     }
5581     kfree(children, M_TEMP);
5582 }
5583 
5584 
5585 /* common code for VIA, AMD & nVidia */
5586 static void
5587 ata_via_family_setmode(device_t dev, int mode)
5588 {
5589     device_t gparent = GRANDPARENT(dev);
5590     struct ata_pci_controller *ctlr = device_get_softc(gparent);
5591     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
5592     struct ata_device *atadev = device_get_softc(dev);
5593     u_int8_t timings[] = { 0xa8, 0x65, 0x42, 0x22, 0x20, 0x42, 0x22, 0x20,
5594 			   0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
5595     int modes[][7] = {
5596 	{ 0xc2, 0xc1, 0xc0, 0x00, 0x00, 0x00, 0x00 },   /* VIA ATA33 */
5597 	{ 0xee, 0xec, 0xea, 0xe9, 0xe8, 0x00, 0x00 },   /* VIA ATA66 */
5598 	{ 0xf7, 0xf6, 0xf4, 0xf2, 0xf1, 0xf0, 0x00 },   /* VIA ATA100 */
5599 	{ 0xf7, 0xf7, 0xf6, 0xf4, 0xf2, 0xf1, 0xf0 },   /* VIA ATA133 */
5600 	{ 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, 0xc7 }};  /* AMD/nVIDIA */
5601     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
5602     int reg = 0x53 - devno;
5603     int error;
5604 
5605     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
5606 
5607     if (ctlr->chip->cfg2 & AMDCABLE) {
5608 	if (mode > ATA_UDMA2 &&
5609 	    !(pci_read_config(gparent, 0x42, 1) & (1 << devno))) {
5610 	    ata_print_cable(dev, "controller");
5611 	    mode = ATA_UDMA2;
5612 	}
5613     }
5614     else
5615 	mode = ata_check_80pin(dev, mode);
5616 
5617     if (ctlr->chip->cfg2 & NVIDIA)
5618 	reg += 0x10;
5619 
5620     if (ctlr->chip->cfg1 != VIA133)
5621 	pci_write_config(gparent, reg - 0x08, timings[ata_mode2idx(mode)], 1);
5622 
5623     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
5624 
5625     if (bootverbose)
5626 	device_printf(dev, "%ssetting %s on %s chip\n",
5627 		      (error) ? "FAILURE " : "", ata_mode2str(mode),
5628 		      ctlr->chip->text);
5629     if (!error) {
5630 	if (mode >= ATA_UDMA0)
5631 	    pci_write_config(gparent, reg,
5632 			     modes[ctlr->chip->cfg1][mode & ATA_MODE_MASK], 1);
5633 	else
5634 	    pci_write_config(gparent, reg, 0x8b, 1);
5635 	atadev->mode = mode;
5636     }
5637 }
5638 
5639 
5640 /* misc functions */
5641 static struct ata_chip_id *
5642 ata_match_chip(device_t dev, struct ata_chip_id *index)
5643 {
5644     while (index->chipid != 0) {
5645 	if (pci_get_devid(dev) == index->chipid &&
5646 	    pci_get_revid(dev) >= index->chiprev)
5647 	    return index;
5648 	index++;
5649     }
5650     return NULL;
5651 }
5652 
5653 static struct ata_chip_id *
5654 ata_find_chip(device_t dev, struct ata_chip_id *index, int slot)
5655 {
5656     device_t *children;
5657     int nchildren, i;
5658 
5659     if (device_get_children(device_get_parent(dev), &children, &nchildren))
5660 	return 0;
5661 
5662     while (index->chipid != 0) {
5663 	for (i = 0; i < nchildren; i++) {
5664 	    if (((slot >= 0 && pci_get_slot(children[i]) == slot) ||
5665 		 (slot < 0 && pci_get_slot(children[i]) <= -slot)) &&
5666 		pci_get_devid(children[i]) == index->chipid &&
5667 		pci_get_revid(children[i]) >= index->chiprev) {
5668 		kfree(children, M_TEMP);
5669 		return index;
5670 	    }
5671 	}
5672 	index++;
5673     }
5674     kfree(children, M_TEMP);
5675     return NULL;
5676 }
5677 
5678 static int
5679 ata_setup_interrupt(device_t dev)
5680 {
5681     struct ata_pci_controller *ctlr = device_get_softc(dev);
5682     int rid = ATA_IRQ_RID;
5683 
5684     if (!ata_legacy(dev)) {
5685 	if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
5686 						   RF_SHAREABLE | RF_ACTIVE))) {
5687 	    device_printf(dev, "unable to map interrupt\n");
5688 	    return ENXIO;
5689 	}
5690 	if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS,
5691 			    ata_generic_intr, ctlr, &ctlr->handle, NULL))) {
5692 	    device_printf(dev, "unable to setup interrupt\n");
5693 	    return ENXIO;
5694 	}
5695     }
5696     return 0;
5697 }
5698 
5699 struct ata_serialize {
5700     struct spinlock     locked_mtx;
5701     int                 locked_ch;
5702     int                 restart_ch;
5703 };
5704 
5705 static int
5706 ata_serialize(device_t dev, int flags)
5707 {
5708     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
5709     struct ata_channel *ch = device_get_softc(dev);
5710     struct ata_serialize *serial;
5711     static int inited = 0;
5712     int res;
5713 
5714     if (!inited) {
5715 	serial = kmalloc(sizeof(struct ata_serialize),
5716 			      M_TEMP, M_INTWAIT | M_ZERO);
5717 	spin_init(&serial->locked_mtx);
5718 	serial->locked_ch = -1;
5719 	serial->restart_ch = -1;
5720 	device_set_ivars(ctlr->dev, serial);
5721 	inited = 1;
5722     }
5723     else
5724 	serial = device_get_ivars(ctlr->dev);
5725 
5726     spin_lock_wr(&serial->locked_mtx);
5727     switch (flags) {
5728     case ATA_LF_LOCK:
5729 	if (serial->locked_ch == -1)
5730 	    serial->locked_ch = ch->unit;
5731 	if (serial->locked_ch != ch->unit)
5732 	    serial->restart_ch = ch->unit;
5733 	break;
5734 
5735     case ATA_LF_UNLOCK:
5736 	if (serial->locked_ch == ch->unit) {
5737 	    serial->locked_ch = -1;
5738 	    if (serial->restart_ch != -1) {
5739 		if ((ch = ctlr->interrupt[serial->restart_ch].argument)) {
5740 		    serial->restart_ch = -1;
5741 		    spin_unlock_wr(&serial->locked_mtx);
5742 		    ata_start(ch->dev);
5743 		    return -1;
5744 		}
5745 	    }
5746 	}
5747 	break;
5748 
5749     case ATA_LF_WHICH:
5750 	break;
5751     }
5752     res = serial->locked_ch;
5753     spin_unlock_wr(&serial->locked_mtx);
5754     return res;
5755 }
5756 
5757 static void
5758 ata_print_cable(device_t dev, u_int8_t *who)
5759 {
5760     device_printf(dev,
5761 		  "DMA limited to UDMA33, %s found non-ATA66 cable\n", who);
5762 }
5763 
5764 static int
5765 ata_atapi(device_t dev)
5766 {
5767     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
5768     struct ata_device *atadev = device_get_softc(dev);
5769 
5770     return ((atadev->unit == ATA_MASTER && ch->devices & ATA_ATAPI_MASTER) ||
5771 	    (atadev->unit == ATA_SLAVE && ch->devices & ATA_ATAPI_SLAVE));
5772 }
5773 
5774 static int
5775 ata_check_80pin(device_t dev, int mode)
5776 {
5777     struct ata_device *atadev = device_get_softc(dev);
5778 
5779     if (mode > ATA_UDMA2 && !(atadev->param.hwres & ATA_CABLE_ID)) {
5780 	ata_print_cable(dev, "device");
5781 	mode = ATA_UDMA2;
5782     }
5783     return mode;
5784 }
5785 
5786 static int
5787 ata_mode2idx(int mode)
5788 {
5789     if ((mode & ATA_DMA_MASK) == ATA_UDMA0)
5790 	 return (mode & ATA_MODE_MASK) + 8;
5791     if ((mode & ATA_DMA_MASK) == ATA_WDMA0)
5792 	 return (mode & ATA_MODE_MASK) + 5;
5793     return (mode & ATA_MODE_MASK) - ATA_PIO0;
5794 }
5795