xref: /dragonfly/sys/dev/disk/nata/ata-chipset.c (revision ef3ac1d1)
1 /*-
2  * Copyright (c) 1998 - 2006 Søren Schmidt <sos@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer,
10  *    without modification, immediately at the beginning of the file.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD: src/sys/dev/ata/ata-chipset.c,v 1.196 2007/04/08 19:18:51 sos Exp $
27  */
28 
29 #include "opt_ata.h"
30 
31 #include <sys/param.h>
32 #include <sys/bus.h>
33 #include <sys/bus_dma.h>
34 #include <sys/bus_resource.h>
35 #include <sys/callout.h>
36 #include <sys/endian.h>
37 #include <sys/libkern.h>
38 #include <sys/lock.h>		/* for {get,rel}_mplock() */
39 #include <sys/malloc.h>
40 #include <sys/nata.h>
41 #include <sys/queue.h>
42 #include <sys/rman.h>
43 #include <sys/spinlock.h>
44 #include <sys/systm.h>
45 #include <sys/taskqueue.h>
46 #include <sys/machintr.h>
47 
48 #include <sys/spinlock2.h>
49 #include <sys/mplock2.h>
50 
51 #include <machine/bus_dma.h>
52 
53 #include <bus/pci/pcireg.h>
54 #include <bus/pci/pcivar.h>
55 
56 #include "ata-all.h"
57 #include "ata-pci.h"
58 #include "ata_if.h"
59 
60 /* local prototypes */
61 /* ata-chipset.c */
62 static int ata_generic_chipinit(device_t dev);
63 static void ata_generic_intr(void *data);
64 static void ata_generic_setmode(device_t dev, int mode);
65 static void ata_sata_phy_check_events(device_t dev);
66 static void ata_sata_phy_event(void *context, int dummy);
67 static int ata_sata_phy_reset(device_t dev);
68 static int ata_sata_connect(struct ata_channel *ch);
69 static void ata_sata_setmode(device_t dev, int mode);
70 static int ata_request2fis_h2d(struct ata_request *request, u_int8_t *fis);
71 static int ata_ahci_chipinit(device_t dev);
72 static int ata_ahci_allocate(device_t dev);
73 static int ata_ahci_status(device_t dev);
74 static int ata_ahci_begin_transaction(struct ata_request *request);
75 static int ata_ahci_end_transaction(struct ata_request *request);
76 static void ata_ahci_reset(device_t dev);
77 static void ata_ahci_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
78 static void ata_ahci_dmainit(device_t dev);
79 static int ata_ahci_setup_fis(struct ata_ahci_cmd_tab *ctp, struct ata_request *request);
80 static int ata_acard_chipinit(device_t dev);
81 static int ata_acard_allocate(device_t dev);
82 static int ata_acard_status(device_t dev);
83 static void ata_acard_850_setmode(device_t dev, int mode);
84 static void ata_acard_86X_setmode(device_t dev, int mode);
85 static int ata_ali_chipinit(device_t dev);
86 static int ata_ali_allocate(device_t dev);
87 static int ata_ali_sata_allocate(device_t dev);
88 static void ata_ali_reset(device_t dev);
89 static void ata_ali_setmode(device_t dev, int mode);
90 static int ata_amd_chipinit(device_t dev);
91 static int ata_ati_chipinit(device_t dev);
92 static void ata_ati_setmode(device_t dev, int mode);
93 static int ata_cyrix_chipinit(device_t dev);
94 static void ata_cyrix_setmode(device_t dev, int mode);
95 static int ata_cypress_chipinit(device_t dev);
96 static void ata_cypress_setmode(device_t dev, int mode);
97 static int ata_highpoint_chipinit(device_t dev);
98 static int ata_highpoint_allocate(device_t dev);
99 static void ata_highpoint_setmode(device_t dev, int mode);
100 static int ata_highpoint_check_80pin(device_t dev, int mode);
101 static int ata_intel_chipinit(device_t dev);
102 static int ata_intel_allocate(device_t dev);
103 static void ata_intel_reset(device_t dev);
104 static void ata_intel_old_setmode(device_t dev, int mode);
105 static void ata_intel_new_setmode(device_t dev, int mode);
106 static void ata_intel_sata_setmode(device_t dev, int mode);
107 static int ata_intel_31244_allocate(device_t dev);
108 static int ata_intel_31244_status(device_t dev);
109 static int ata_intel_31244_command(struct ata_request *request);
110 static void ata_intel_31244_reset(device_t dev);
111 static int ata_ite_chipinit(device_t dev);
112 static void ata_ite_setmode(device_t dev, int mode);
113 static int ata_jmicron_chipinit(device_t dev);
114 static int ata_jmicron_allocate(device_t dev);
115 static void ata_jmicron_reset(device_t dev);
116 static void ata_jmicron_dmainit(device_t dev);
117 static void ata_jmicron_setmode(device_t dev, int mode);
118 static int ata_marvell_pata_chipinit(device_t dev);
119 static int ata_marvell_pata_allocate(device_t dev);
120 static void ata_marvell_pata_setmode(device_t dev, int mode);
121 static int ata_marvell_edma_chipinit(device_t dev);
122 static int ata_marvell_edma_allocate(device_t dev);
123 static int ata_marvell_edma_status(device_t dev);
124 static int ata_marvell_edma_begin_transaction(struct ata_request *request);
125 static int ata_marvell_edma_end_transaction(struct ata_request *request);
126 static void ata_marvell_edma_reset(device_t dev);
127 static void ata_marvell_edma_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
128 static void ata_marvell_edma_dmainit(device_t dev);
129 static int ata_national_chipinit(device_t dev);
130 static void ata_national_setmode(device_t dev, int mode);
131 static int ata_netcell_chipinit(device_t dev);
132 static int ata_netcell_allocate(device_t dev);
133 static int ata_nvidia_chipinit(device_t dev);
134 static int ata_nvidia_allocate(device_t dev);
135 static int ata_nvidia_status(device_t dev);
136 static void ata_nvidia_reset(device_t dev);
137 static int ata_promise_chipinit(device_t dev);
138 static int ata_promise_allocate(device_t dev);
139 static int ata_promise_status(device_t dev);
140 static int ata_promise_dmastart(device_t dev);
141 static int ata_promise_dmastop(device_t dev);
142 static void ata_promise_dmareset(device_t dev);
143 static void ata_promise_dmainit(device_t dev);
144 static void ata_promise_setmode(device_t dev, int mode);
145 static int ata_promise_tx2_allocate(device_t dev);
146 static int ata_promise_tx2_status(device_t dev);
147 static int ata_promise_mio_allocate(device_t dev);
148 static void ata_promise_mio_intr(void *data);
149 static int ata_promise_mio_status(device_t dev);
150 static int ata_promise_mio_command(struct ata_request *request);
151 static void ata_promise_mio_reset(device_t dev);
152 static void ata_promise_mio_dmainit(device_t dev);
153 static void ata_promise_mio_setmode(device_t dev, int mode);
154 static void ata_promise_sx4_intr(void *data);
155 static int ata_promise_sx4_command(struct ata_request *request);
156 static int ata_promise_apkt(u_int8_t *bytep, struct ata_request *request);
157 static void ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt);
158 static void ata_promise_next_hpkt(struct ata_pci_controller *ctlr);
159 static int ata_serverworks_chipinit(device_t dev);
160 static int ata_serverworks_allocate(device_t dev);
161 static void ata_serverworks_setmode(device_t dev, int mode);
162 static int ata_sii_chipinit(device_t dev);
163 static int ata_cmd_allocate(device_t dev);
164 static int ata_cmd_status(device_t dev);
165 static void ata_cmd_setmode(device_t dev, int mode);
166 static int ata_sii_allocate(device_t dev);
167 static int ata_sii_status(device_t dev);
168 static void ata_sii_reset(device_t dev);
169 static void ata_sii_setmode(device_t dev, int mode);
170 static int ata_siiprb_allocate(device_t dev);
171 static int ata_siiprb_status(device_t dev);
172 static int ata_siiprb_begin_transaction(struct ata_request *request);
173 static int ata_siiprb_end_transaction(struct ata_request *request);
174 static void ata_siiprb_reset(device_t dev);
175 static void ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
176 static void ata_siiprb_dmainit(device_t dev);
177 static int ata_sis_chipinit(device_t dev);
178 static int ata_sis_allocate(device_t dev);
179 static void ata_sis_reset(device_t dev);
180 static void ata_sis_setmode(device_t dev, int mode);
181 static int ata_via_chipinit(device_t dev);
182 static int ata_via_allocate(device_t dev);
183 static void ata_via_reset(device_t dev);
184 static void ata_via_setmode(device_t dev, int mode);
185 static void ata_via_southbridge_fixup(device_t dev);
186 static void ata_via_family_setmode(device_t dev, int mode);
187 static struct ata_chip_id *ata_match_chip(device_t dev, struct ata_chip_id *index);
188 static struct ata_chip_id *ata_find_chip(device_t dev, struct ata_chip_id *index, int slot);
189 static int ata_setup_interrupt(device_t dev);
190 static void ata_teardown_interrupt(device_t dev);
191 static int ata_serialize(device_t dev, int flags);
192 static void ata_print_cable(device_t dev, u_int8_t *who);
193 static int ata_atapi(device_t dev);
194 static int ata_check_80pin(device_t dev, int mode);
195 static int ata_mode2idx(int mode);
196 
197 
198 /*
199  * generic ATA support functions
200  */
201 int
202 ata_generic_ident(device_t dev)
203 {
204     struct ata_pci_controller *ctlr = device_get_softc(dev);
205     char buffer[64];
206 
207     ksnprintf(buffer, sizeof(buffer),
208 	      "%s ATA controller", ata_pcivendor2str(dev));
209     device_set_desc_copy(dev, buffer);
210     ctlr->chipinit = ata_generic_chipinit;
211     return 0;
212 }
213 
214 static int
215 ata_generic_chipinit(device_t dev)
216 {
217     struct ata_pci_controller *ctlr = device_get_softc(dev);
218 
219     if (ata_setup_interrupt(dev))
220 	return ENXIO;
221     ctlr->setmode = ata_generic_setmode;
222     return 0;
223 }
224 
225 static void
226 ata_generic_intr(void *data)
227 {
228     struct ata_pci_controller *ctlr = data;
229     struct ata_channel *ch;
230     int unit;
231 
232     for (unit = 0; unit < ctlr->channels; unit++) {
233 	if ((ch = ctlr->interrupt[unit].argument))
234 	    ctlr->interrupt[unit].function(ch);
235     }
236 }
237 
238 static void
239 ata_generic_setmode(device_t dev, int mode)
240 {
241     struct ata_device *atadev = device_get_softc(dev);
242 
243     mode = ata_limit_mode(dev, mode, ATA_UDMA2);
244     mode = ata_check_80pin(dev, mode);
245     if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
246 	atadev->mode = mode;
247 }
248 
249 
250 /*
251  * SATA support functions
252  */
253 static void
254 ata_sata_phy_check_events(device_t dev)
255 {
256     struct ata_channel *ch = device_get_softc(dev);
257     u_int32_t error = ATA_IDX_INL(ch, ATA_SERROR);
258 
259     /* clear error bits/interrupt */
260     ATA_IDX_OUTL(ch, ATA_SERROR, error);
261 
262     /* do we have any events flagged ? */
263     if (error) {
264 	struct ata_connect_task *tp;
265 	u_int32_t status = ATA_IDX_INL(ch, ATA_SSTATUS);
266 
267 	/* if we have a connection event deal with it */
268 	if ((error & ATA_SE_PHY_CHANGED) &&
269 	    (tp = (struct ata_connect_task *)
270 		  kmalloc(sizeof(struct ata_connect_task),
271 			 M_ATA, M_INTWAIT | M_ZERO))) {
272 
273 	    if (((status & ATA_SS_CONWELL_MASK) == ATA_SS_CONWELL_GEN1) ||
274 		((status & ATA_SS_CONWELL_MASK) == ATA_SS_CONWELL_GEN2)) {
275 		if (bootverbose)
276 		    device_printf(ch->dev, "CONNECT requested\n");
277 		tp->action = ATA_C_ATTACH;
278 	    }
279 	    else {
280 		if (bootverbose)
281 		    device_printf(ch->dev, "DISCONNECT requested\n");
282 		tp->action = ATA_C_DETACH;
283 	    }
284 	    tp->dev = ch->dev;
285 	    TASK_INIT(&tp->task, 0, ata_sata_phy_event, tp);
286 	    taskqueue_enqueue(taskqueue_thread[mycpuid], &tp->task);
287 	}
288     }
289 }
290 
291 static void
292 ata_sata_phy_event(void *context, int dummy)
293 {
294     struct ata_connect_task *tp = (struct ata_connect_task *)context;
295     struct ata_channel *ch = device_get_softc(tp->dev);
296     device_t *children;
297     int nchildren, i;
298 
299     get_mplock();
300     if (tp->action == ATA_C_ATTACH) {
301 	if (bootverbose)
302 	    device_printf(tp->dev, "CONNECTED\n");
303 	ATA_RESET(tp->dev);
304 	ata_identify(tp->dev);
305     }
306     if (tp->action == ATA_C_DETACH) {
307 	if (!device_get_children(tp->dev, &children, &nchildren)) {
308 	    for (i = 0; i < nchildren; i++)
309 		if (children[i])
310 		    device_delete_child(tp->dev, children[i]);
311 	    kfree(children, M_TEMP);
312 	}
313 	spin_lock(&ch->state_mtx);
314 	ch->state = ATA_IDLE;
315 	spin_unlock(&ch->state_mtx);
316 	if (bootverbose)
317 	    device_printf(tp->dev, "DISCONNECTED\n");
318     }
319     rel_mplock();
320     kfree(tp, M_ATA);
321 }
322 
323 static int
324 ata_sata_phy_reset(device_t dev)
325 {
326     struct ata_channel *ch = device_get_softc(dev);
327     int loop, retry;
328 
329     if ((ATA_IDX_INL(ch, ATA_SCONTROL) & ATA_SC_DET_MASK) == ATA_SC_DET_IDLE)
330 	return ata_sata_connect(ch);
331 
332     for (retry = 0; retry < 10; retry++) {
333 	for (loop = 0; loop < 10; loop++) {
334 	    ATA_IDX_OUTL(ch, ATA_SCONTROL, ATA_SC_DET_RESET);
335 	    ata_udelay(100);
336 	    if ((ATA_IDX_INL(ch, ATA_SCONTROL) &
337 		ATA_SC_DET_MASK) == ATA_SC_DET_RESET)
338 		break;
339 	}
340 	ata_udelay(5000);
341 	for (loop = 0; loop < 10; loop++) {
342 	    ATA_IDX_OUTL(ch, ATA_SCONTROL, ATA_SC_DET_IDLE |
343 					   ATA_SC_IPM_DIS_PARTIAL |
344 					   ATA_SC_IPM_DIS_SLUMBER);
345 	    ata_udelay(100);
346 	    if ((ATA_IDX_INL(ch, ATA_SCONTROL) & ATA_SC_DET_MASK) == 0)
347 		return ata_sata_connect(ch);
348 	}
349     }
350     return 0;
351 }
352 
353 static int
354 ata_sata_connect(struct ata_channel *ch)
355 {
356     u_int32_t status;
357     int timeout;
358 
359     /* wait up to 1 second for "connect well" */
360     for (timeout = 0; timeout < 100 ; timeout++) {
361 	status = ATA_IDX_INL(ch, ATA_SSTATUS);
362 	if ((status & ATA_SS_CONWELL_MASK) == ATA_SS_CONWELL_GEN1 ||
363 	    (status & ATA_SS_CONWELL_MASK) == ATA_SS_CONWELL_GEN2)
364 	    break;
365 	ata_udelay(10000);
366     }
367     if (timeout >= 100) {
368 	if (bootverbose)
369 	    device_printf(ch->dev, "SATA connect status=%08x\n", status);
370 	return 0;
371     }
372 
373     if (bootverbose)
374 	device_printf(ch->dev, "SATA connect time=%dms\n", timeout * 10);
375 
376     /* clear SATA error register */
377     ATA_IDX_OUTL(ch, ATA_SERROR, ATA_IDX_INL(ch, ATA_SERROR));
378 
379     return 1;
380 }
381 
382 static void
383 ata_sata_setmode(device_t dev, int mode)
384 {
385     struct ata_device *atadev = device_get_softc(dev);
386 
387     /*
388      * if we detect that the device isn't a real SATA device we limit
389      * the transfer mode to UDMA5/ATA100.
390      * this works around the problems some devices has with the
391      * Marvell 88SX8030 SATA->PATA converters and UDMA6/ATA133.
392      */
393     if (atadev->param.satacapabilities != 0x0000 &&
394 	atadev->param.satacapabilities != 0xffff) {
395 	struct ata_channel *ch = device_get_softc(device_get_parent(dev));
396 
397 	/* on some drives we need to set the transfer mode */
398 	ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0,
399 		       ata_limit_mode(dev, mode, ATA_UDMA6));
400 
401 	/* query SATA STATUS for the speed */
402         if (ch->r_io[ATA_SSTATUS].res &&
403 	   ((ATA_IDX_INL(ch, ATA_SSTATUS) & ATA_SS_CONWELL_MASK) ==
404 	    ATA_SS_CONWELL_GEN2))
405 	    atadev->mode = ATA_SA300;
406 	else
407 	    atadev->mode = ATA_SA150;
408     }
409     else {
410 	mode = ata_limit_mode(dev, mode, ATA_UDMA5);
411 	if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
412 	    atadev->mode = mode;
413     }
414 }
415 
416 static int
417 ata_request2fis_h2d(struct ata_request *request, u_int8_t *fis)
418 {
419     struct ata_device *atadev = device_get_softc(request->dev);
420 
421     if (request->flags & ATA_R_ATAPI) {
422 	fis[0] = 0x27;  /* host to device */
423 	fis[1] = 0x80;  /* command FIS (note PM goes here) */
424 	fis[2] = ATA_PACKET_CMD;
425 	if (request->flags & (ATA_R_READ | ATA_R_WRITE))
426 	    fis[3] = ATA_F_DMA;
427 	else {
428 	    fis[5] = request->transfersize;
429 	    fis[6] = request->transfersize >> 8;
430 	}
431 	fis[7] = ATA_D_LBA | atadev->unit;
432 	fis[15] = ATA_A_4BIT;
433 	return 20;
434     }
435     else {
436 	ata_modify_if_48bit(request);
437 	fis[0] = 0x27;  /* host to device */
438 	fis[1] = 0x80;  /* command FIS (note PM goes here) */
439 	fis[2] = request->u.ata.command;
440 	fis[3] = request->u.ata.feature;
441 	fis[4] = request->u.ata.lba;
442 	fis[5] = request->u.ata.lba >> 8;
443 	fis[6] = request->u.ata.lba >> 16;
444 	fis[7] = ATA_D_LBA | atadev->unit;
445 	if (!(atadev->flags & ATA_D_48BIT_ACTIVE))
446 	    fis[7] |= (request->u.ata.lba >> 24 & 0x0f);
447 	fis[8] = request->u.ata.lba >> 24;
448 	fis[9] = request->u.ata.lba >> 32;
449 	fis[10] = request->u.ata.lba >> 40;
450 	fis[11] = request->u.ata.feature >> 8;
451 	fis[12] = request->u.ata.count;
452 	fis[13] = request->u.ata.count >> 8;
453 	fis[15] = ATA_A_4BIT;
454 	return 20;
455     }
456     return 0;
457 }
458 
459 /*
460  * AHCI v1.x compliant SATA chipset support functions
461  */
462 int
463 ata_ahci_ident(device_t dev)
464 {
465     struct ata_pci_controller *ctlr = device_get_softc(dev);
466     static struct ata_chip_id id = {0, 0, 0, 0x00, ATA_SA300, "AHCI"};
467     char buffer[64];
468 
469     if (pci_read_config(dev, PCIR_PROGIF, 1) != PCIP_STORAGE_SATA_AHCI_1_0)
470 	return ENXIO;
471 
472     if (bootverbose)
473 	ksnprintf(buffer, sizeof(buffer), "%s (ID=%08x) AHCI controller",
474 		  ata_pcivendor2str(dev), pci_get_devid(dev));
475     else
476 	ksnprintf(buffer, sizeof(buffer), "%s AHCI controller",
477 		  ata_pcivendor2str(dev));
478     device_set_desc_copy(dev, buffer);
479     ctlr->chip = &id;
480     ctlr->chipinit = ata_ahci_chipinit;
481     return 0;
482 }
483 
484 
485 /*
486  * AHCI v1.x compliant SATA chipset support functions
487  */
488 int
489 ata_ahci_chipinit(device_t dev)
490 {
491     struct ata_pci_controller *ctlr = device_get_softc(dev);
492     u_int32_t version;
493     int unit;
494 
495     /* if we have a memory BAR(5) we are likely on an AHCI part */
496     ctlr->r_type2 = SYS_RES_MEMORY;
497     ctlr->r_rid2 = PCIR_BAR(5);
498     if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
499 						&ctlr->r_rid2, RF_ACTIVE)))
500 	return ENXIO;
501 
502     /* setup interrupt delivery if not done allready by a vendor driver */
503     if (!ctlr->r_irq) {
504 	if (ata_setup_interrupt(dev))
505 	    return ENXIO;
506     }
507     else
508 	device_printf(dev, "AHCI called from vendor specific driver\n");
509 
510     /* enable AHCI mode */
511     ATA_OUTL(ctlr->r_res2, ATA_AHCI_GHC, ATA_AHCI_GHC_AE);
512 
513     /* reset AHCI controller */
514     ATA_OUTL(ctlr->r_res2, ATA_AHCI_GHC, ATA_AHCI_GHC_HR);
515     DELAY(1000000);
516     if (ATA_INL(ctlr->r_res2, ATA_AHCI_GHC) & ATA_AHCI_GHC_HR) {
517 	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
518 	device_printf(dev, "AHCI controller reset failure\n");
519 	return ENXIO;
520     }
521 
522     /* reenable AHCI mode */
523     ATA_OUTL(ctlr->r_res2, ATA_AHCI_GHC, ATA_AHCI_GHC_AE);
524 
525     /* get the number of HW channels */
526     ctlr->channels =
527 	MAX(flsl(ATA_INL(ctlr->r_res2, ATA_AHCI_PI)),
528 	    (ATA_INL(ctlr->r_res2, ATA_AHCI_CAP) & ATA_AHCI_NPMASK) + 1);
529 
530     /* disable interrupt sources and clear interrupts */
531     for (unit = 0; unit < ctlr->channels; unit++) {
532 	int offset = unit << 7;
533 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IE + offset, 0);
534 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IS + offset, -1);
535     }
536     ATA_OUTL(ctlr->r_res2, ATA_AHCI_IS, ATA_INL(ctlr->r_res2, ATA_AHCI_IS));
537 
538     /* enable AHCI interrupts */
539     ATA_OUTL(ctlr->r_res2, ATA_AHCI_GHC,
540 	     ATA_INL(ctlr->r_res2, ATA_AHCI_GHC) | ATA_AHCI_GHC_IE);
541 
542     ctlr->reset = ata_ahci_reset;
543     ctlr->dmainit = ata_ahci_dmainit;
544     ctlr->allocate = ata_ahci_allocate;
545     ctlr->setmode = ata_sata_setmode;
546 
547     /* enable PCI interrupt */
548     pci_write_config(dev, PCIR_COMMAND,
549 		     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
550 
551     /* announce we support the HW */
552     version = ATA_INL(ctlr->r_res2, ATA_AHCI_VS);
553     device_printf(dev,
554 		  "AHCI Version %x%x.%x%x controller with %d ports detected\n",
555 		  (version >> 24) & 0xff, (version >> 16) & 0xff,
556 		  (version >> 8) & 0xff, version & 0xff,
557 		  (ATA_INL(ctlr->r_res2, ATA_AHCI_CAP) & ATA_AHCI_NPMASK) + 1);
558     return 0;
559 }
560 
561 static int
562 ata_ahci_allocate(device_t dev)
563 {
564     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
565     struct ata_channel *ch = device_get_softc(dev);
566     u_int64_t work;
567     int offset = ch->unit << 7;
568 
569     /* set the SATA resources */
570     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
571     ch->r_io[ATA_SSTATUS].offset = ATA_AHCI_P_SSTS + offset;
572     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
573     ch->r_io[ATA_SERROR].offset = ATA_AHCI_P_SERR + offset;
574     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
575     ch->r_io[ATA_SCONTROL].offset = ATA_AHCI_P_SCTL + offset;
576     ch->r_io[ATA_SACTIVE].res = ctlr->r_res2;
577     ch->r_io[ATA_SACTIVE].offset = ATA_AHCI_P_SACT + offset;
578 
579     ch->hw.status = ata_ahci_status;
580     ch->hw.begin_transaction = ata_ahci_begin_transaction;
581     ch->hw.end_transaction = ata_ahci_end_transaction;
582     ch->hw.command = NULL;      /* not used here */
583 
584     /* setup work areas */
585     work = ch->dma->work_bus + ATA_AHCI_CL_OFFSET;
586     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CLB + offset, work & 0xffffffff);
587     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CLBU + offset, work >> 32);
588 
589     work = ch->dma->work_bus + ATA_AHCI_FB_OFFSET;
590     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_FB + offset, work & 0xffffffff);
591     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_FBU + offset, work >> 32);
592 
593     /* enable wanted port interrupts */
594     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IE + offset,
595 	     (ATA_AHCI_P_IX_CPD | ATA_AHCI_P_IX_TFE | ATA_AHCI_P_IX_HBF |
596 	      ATA_AHCI_P_IX_HBD | ATA_AHCI_P_IX_IF | ATA_AHCI_P_IX_OF |
597 	      ATA_AHCI_P_IX_PRC | ATA_AHCI_P_IX_PC | ATA_AHCI_P_IX_DP |
598 	      ATA_AHCI_P_IX_UF | ATA_AHCI_P_IX_SDB | ATA_AHCI_P_IX_DS |
599 	      ATA_AHCI_P_IX_PS | ATA_AHCI_P_IX_DHR));
600 
601     /* start operations on this channel */
602     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
603 	     (ATA_AHCI_P_CMD_ACTIVE | ATA_AHCI_P_CMD_FRE |
604 	      ATA_AHCI_P_CMD_POD | ATA_AHCI_P_CMD_SUD | ATA_AHCI_P_CMD_ST));
605     return 0;
606 }
607 
608 static int
609 ata_ahci_status(device_t dev)
610 {
611     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
612     struct ata_channel *ch = device_get_softc(dev);
613     u_int32_t action = ATA_INL(ctlr->r_res2, ATA_AHCI_IS);
614     int offset = ch->unit << 7;
615     int tag = 0;
616 
617     if (action & (1 << ch->unit)) {
618 	u_int32_t istatus = ATA_INL(ctlr->r_res2, ATA_AHCI_P_IS + offset);
619 	u_int32_t cstatus = ATA_INL(ctlr->r_res2, ATA_AHCI_P_CI + offset);
620 
621 	/* clear interrupt(s) */
622 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_IS, action & (1 << ch->unit));
623 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IS + offset, istatus);
624 
625 	/* do we have any PHY events ? */
626 	/* XXX SOS check istatus phy bits */
627 	ata_sata_phy_check_events(dev);
628 
629 	/* do we have a potentially hanging engine to take care of? */
630 	if ((istatus & 0x78400050) && (cstatus & (1 << tag))) {
631 
632 	    u_int32_t cmd = ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset);
633 	    int timeout = 0;
634 
635 	    /* kill off all activity on this channel */
636 	    ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
637 		     cmd & ~(ATA_AHCI_P_CMD_FRE | ATA_AHCI_P_CMD_ST));
638 
639 	    /* XXX SOS this is not entirely wrong */
640 	    do {
641 		DELAY(1000);
642 		if (timeout++ > 500) {
643 		    device_printf(dev, "stopping AHCI engine failed\n");
644 		    break;
645 	        }
646 	    } while (ATA_INL(ctlr->r_res2,
647 			     ATA_AHCI_P_CMD + offset) & ATA_AHCI_P_CMD_CR);
648 
649 	    /* start operations on this channel */
650 	    ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
651 		     cmd | (ATA_AHCI_P_CMD_FRE | ATA_AHCI_P_CMD_ST));
652 
653 	    return 1;
654 	}
655 	else
656 	    return (!(cstatus & (1 << tag)));
657     }
658     return 0;
659 }
660 
661 /* must be called with ATA channel locked and state_mtx held */
662 static int
663 ata_ahci_begin_transaction(struct ata_request *request)
664 {
665     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
666     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
667     struct ata_ahci_cmd_tab *ctp;
668     struct ata_ahci_cmd_list *clp;
669     int offset = ch->unit << 7;
670     int tag = 0, entries = 0;
671     int fis_size;
672 
673     /* get a piece of the workspace for this request */
674     ctp = (struct ata_ahci_cmd_tab *)
675 	  (ch->dma->work + ATA_AHCI_CT_OFFSET + (ATA_AHCI_CT_SIZE * tag));
676 
677     /* setup the FIS for this request */
678     if (!(fis_size = ata_ahci_setup_fis(ctp, request))) {
679 	device_printf(request->dev, "setting up SATA FIS failed\n");
680 	request->result = EIO;
681 	return ATA_OP_FINISHED;
682     }
683 
684     /* if request moves data setup and load SG list */
685     if (request->flags & (ATA_R_READ | ATA_R_WRITE)) {
686 	if (ch->dma->load(ch->dev, request->data, request->bytecount,
687 			  request->flags & ATA_R_READ,
688 			  ctp->prd_tab, &entries)) {
689 	    device_printf(request->dev, "setting up DMA failed\n");
690 	    request->result = EIO;
691 	    return ATA_OP_FINISHED;
692 	}
693     }
694 
695     /* setup the command list entry */
696     clp = (struct ata_ahci_cmd_list *)
697 	  (ch->dma->work + ATA_AHCI_CL_OFFSET + (ATA_AHCI_CL_SIZE * tag));
698 
699     clp->prd_length = entries;
700     clp->cmd_flags = (request->flags & ATA_R_WRITE ? (1<<6) : 0) |
701 		     (request->flags & ATA_R_ATAPI ? ((1<<5) | (1<<7)) : 0) |
702 		     (fis_size / sizeof(u_int32_t));
703     clp->bytecount = 0;
704     clp->cmd_table_phys = htole64(ch->dma->work_bus + ATA_AHCI_CT_OFFSET +
705 				  (ATA_AHCI_CT_SIZE * tag));
706 
707     /* clear eventual ACTIVE bit */
708     ATA_IDX_OUTL(ch, ATA_SACTIVE, ATA_IDX_INL(ch, ATA_SACTIVE) & (1 << tag));
709 
710     /* set command type bit */
711     if (request->flags & ATA_R_ATAPI)
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     else
716 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
717 		 ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset) &
718 		 ~ATA_AHCI_P_CMD_ATAPI);
719 
720     /* issue command to controller */
721     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CI + offset, (1 << tag));
722 
723     if (!(request->flags & ATA_R_ATAPI)) {
724 	/* device reset doesn't interrupt */
725 	if (request->u.ata.command == ATA_DEVICE_RESET) {
726 	    u_int32_t tf_data;
727 	    int timeout = 1000000;
728 
729 	    do {
730 		DELAY(10);
731 		tf_data = ATA_INL(ctlr->r_res2, ATA_AHCI_P_TFD + (ch->unit<<7));
732 	    } while ((tf_data & ATA_S_BUSY) && timeout--);
733 	    if (bootverbose)
734 		device_printf(ch->dev, "device_reset timeout=%dus\n",
735 			      (1000000-timeout)*10);
736 	    request->status = tf_data;
737 	    if (request->status & ATA_S_ERROR)
738 		request->error = tf_data >> 8;
739 	    return ATA_OP_FINISHED;
740 	}
741     }
742 
743     /* start the timeout */
744     callout_reset(&request->callout, request->timeout * hz,
745 		  (timeout_t*)ata_timeout, request);
746     return ATA_OP_CONTINUES;
747 }
748 
749 /* must be called with ATA channel locked and state_mtx held */
750 static int
751 ata_ahci_end_transaction(struct ata_request *request)
752 {
753     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
754     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
755     struct ata_ahci_cmd_list *clp;
756     u_int32_t tf_data;
757     int offset = ch->unit << 7;
758     int tag = 0;
759 
760     /* kill the timeout */
761     callout_stop(&request->callout);
762 
763     /* get status */
764     tf_data = ATA_INL(ctlr->r_res2, ATA_AHCI_P_TFD + offset);
765     request->status = tf_data;
766 
767     /* if error status get details */
768     if (request->status & ATA_S_ERROR)
769 	request->error = tf_data >> 8;
770 
771     /* record how much data we actually moved */
772     clp = (struct ata_ahci_cmd_list *)
773 	  (ch->dma->work + ATA_AHCI_CL_OFFSET + (ATA_AHCI_CL_SIZE * tag));
774     request->donecount = clp->bytecount;
775 
776     /* release SG list etc */
777     ch->dma->unload(ch->dev);
778 
779     return ATA_OP_FINISHED;
780 }
781 
782 static void
783 ata_ahci_reset(device_t dev)
784 {
785     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
786     struct ata_channel *ch = device_get_softc(dev);
787     u_int32_t cmd, signature;
788     int offset = ch->unit << 7;
789     int timeout;
790 
791     if (!(ATA_INL(ctlr->r_res2, ATA_AHCI_PI) & (1 << ch->unit))) {
792 	device_printf(dev, "port not implemented\n");
793 	return;
794     }
795     ch->devices = 0;
796 
797     /* kill off all activity on this channel */
798     cmd = ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset);
799     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
800 	     cmd & ~(ATA_AHCI_P_CMD_FRE | ATA_AHCI_P_CMD_ST));
801 
802     /* XXX SOS this is not entirely wrong */
803     timeout = 0;
804     do {
805 	DELAY(1000);
806 	if (timeout++ > 500) {
807 	    device_printf(dev, "stopping AHCI engine failed\n");
808 	    break;
809 	}
810     }
811     while (ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset) & ATA_AHCI_P_CMD_CR);
812 
813     /* issue Command List Override if supported */
814     if (ATA_INL(ctlr->r_res2, ATA_AHCI_CAP) & ATA_AHCI_CAP_CLO) {
815 	cmd = ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset);
816 	cmd |= ATA_AHCI_P_CMD_CLO;
817 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset, cmd);
818 	timeout = 0;
819 	do {
820 	    DELAY(1000);
821 	    if (timeout++ > 500) {
822 		device_printf(dev, "executing CLO failed\n");
823 		break;
824 	    }
825 	}
826 	while (ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD+offset)&ATA_AHCI_P_CMD_CLO);
827     }
828 
829     /* reset PHY and decide what is present */
830     if (ata_sata_phy_reset(dev)) {
831 
832 	/* clear any interrupts pending on this channel */
833 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IS + offset,
834 		 ATA_INL(ctlr->r_res2, ATA_AHCI_P_IS + offset));
835 
836 	/* clear SATA error register */
837 	ATA_IDX_OUTL(ch, ATA_SERROR, ATA_IDX_INL(ch, ATA_SERROR));
838 
839 	/* start operations on this channel */
840 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
841 		 (ATA_AHCI_P_CMD_ACTIVE | ATA_AHCI_P_CMD_FRE |
842 		  ATA_AHCI_P_CMD_POD | ATA_AHCI_P_CMD_SUD | ATA_AHCI_P_CMD_ST));
843 
844 	signature = ATA_INL(ctlr->r_res2, ATA_AHCI_P_SIG + offset);
845 	switch (signature) {
846 	case 0x00000101:
847 	    ch->devices = ATA_ATA_MASTER;
848 	    break;
849 	case 0x96690101:
850 	    ch->devices = ATA_PORTMULTIPLIER;
851 	    device_printf(ch->dev, "Portmultipliers not supported yet\n");
852 	    ch->devices = 0;
853 	    break;
854 	case 0xeb140101:
855 	    ch->devices = ATA_ATAPI_MASTER;
856 	    break;
857 	default: /* SOS XXX */
858 	    if (bootverbose)
859 		device_printf(ch->dev, "No signature, assuming disk device\n");
860 	    ch->devices = ATA_ATA_MASTER;
861 	}
862     }
863     if (bootverbose)
864 	device_printf(dev, "ahci_reset devices=0x%b\n", ch->devices,
865 		      "\20\4ATAPI_SLAVE\3ATAPI_MASTER\2ATA_SLAVE\1ATA_MASTER");
866 }
867 
868 static void
869 ata_ahci_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
870 {
871     struct ata_dmasetprd_args *args = xsc;
872     struct ata_ahci_dma_prd *prd = args->dmatab;
873     int i;
874 
875     if (!(args->error = error)) {
876 	for (i = 0; i < nsegs; i++) {
877 	    prd[i].dba = htole64(segs[i].ds_addr);
878 	    prd[i].dbc = htole32((segs[i].ds_len - 1) & ATA_AHCI_PRD_MASK);
879 	}
880     }
881     args->nsegs = nsegs;
882 }
883 
884 static void
885 ata_ahci_dmainit(device_t dev)
886 {
887     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
888     struct ata_channel *ch = device_get_softc(dev);
889 
890     ata_dmainit(dev);
891     if (ch->dma) {
892 	/* note start and stop are not used here */
893 	ch->dma->setprd = ata_ahci_dmasetprd;
894 	ch->dma->max_iosize = 8192 * DEV_BSIZE;
895 	if (ATA_INL(ctlr->r_res2, ATA_AHCI_CAP) & ATA_AHCI_CAP_64BIT)
896 	    ch->dma->max_address = BUS_SPACE_MAXADDR;
897     }
898 }
899 
900 static int
901 ata_ahci_setup_fis(struct ata_ahci_cmd_tab *ctp, struct ata_request *request)
902 {
903     bzero(ctp->cfis, 64);
904     if (request->flags & ATA_R_ATAPI) {
905 	bzero(ctp->acmd, 32);
906 	bcopy(request->u.atapi.ccb, ctp->acmd, 16);
907     }
908     return ata_request2fis_h2d(request, &ctp->cfis[0]);
909 }
910 
911 /*
912  * Acard chipset support functions
913  */
914 int
915 ata_acard_ident(device_t dev)
916 {
917     struct ata_pci_controller *ctlr = device_get_softc(dev);
918     struct ata_chip_id *idx;
919     static struct ata_chip_id ids[] =
920     {{ ATA_ATP850R, 0, ATPOLD, 0x00, ATA_UDMA2, "ATP850" },
921      { ATA_ATP860A, 0, 0,      0x00, ATA_UDMA4, "ATP860A" },
922      { ATA_ATP860R, 0, 0,      0x00, ATA_UDMA4, "ATP860R" },
923      { ATA_ATP865A, 0, 0,      0x00, ATA_UDMA6, "ATP865A" },
924      { ATA_ATP865R, 0, 0,      0x00, ATA_UDMA6, "ATP865R" },
925      { 0, 0, 0, 0, 0, 0}};
926     char buffer[64];
927 
928     if (!(idx = ata_match_chip(dev, ids)))
929 	return ENXIO;
930 
931     ksprintf(buffer, "Acard %s %s controller",
932 	    idx->text, ata_mode2str(idx->max_dma));
933     device_set_desc_copy(dev, buffer);
934     ctlr->chip = idx;
935     ctlr->chipinit = ata_acard_chipinit;
936     return 0;
937 }
938 
939 static int
940 ata_acard_chipinit(device_t dev)
941 {
942     struct ata_pci_controller *ctlr = device_get_softc(dev);
943 
944     if (ata_setup_interrupt(dev))
945 	return ENXIO;
946 
947     ctlr->allocate = ata_acard_allocate;
948     if (ctlr->chip->cfg1 == ATPOLD) {
949 	ctlr->setmode = ata_acard_850_setmode;
950 	ctlr->locking = ata_serialize;
951     }
952     else
953 	ctlr->setmode = ata_acard_86X_setmode;
954     return 0;
955 }
956 
957 static int
958 ata_acard_allocate(device_t dev)
959 {
960     struct ata_channel *ch = device_get_softc(dev);
961 
962     /* setup the usual register normal pci style */
963     if (ata_pci_allocate(dev))
964 	return ENXIO;
965 
966     ch->hw.status = ata_acard_status;
967     return 0;
968 }
969 
970 static int
971 ata_acard_status(device_t dev)
972 {
973     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
974     struct ata_channel *ch = device_get_softc(dev);
975 
976     if (ctlr->chip->cfg1 == ATPOLD &&
977 	ATA_LOCKING(ch->dev, ATA_LF_WHICH) != ch->unit)
978 	    return 0;
979     if (ch->dma && (ch->dma->flags & ATA_DMA_ACTIVE)) {
980 	int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
981 
982 	if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) !=
983 	    ATA_BMSTAT_INTERRUPT)
984 	    return 0;
985 	ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR);
986 	DELAY(1);
987 	ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
988 		     ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
989 	DELAY(1);
990     }
991     if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) {
992 	DELAY(100);
993 	if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY)
994 	    return 0;
995     }
996     return 1;
997 }
998 
999 static void
1000 ata_acard_850_setmode(device_t dev, int mode)
1001 {
1002     device_t gparent = GRANDPARENT(dev);
1003     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1004     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1005     struct ata_device *atadev = device_get_softc(dev);
1006     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1007     int error;
1008 
1009     mode = ata_limit_mode(dev, mode,
1010 			  ata_atapi(dev) ? ATA_PIO_MAX : ctlr->chip->max_dma);
1011 
1012     /* XXX SOS missing WDMA0+1 + PIO modes */
1013     if (mode >= ATA_WDMA2) {
1014 	error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1015 	if (bootverbose)
1016 	    device_printf(dev, "%ssetting %s on %s chip\n",
1017 			  (error) ? "FAILURE " : "",
1018 			  ata_mode2str(mode), ctlr->chip->text);
1019 	if (!error) {
1020 	    u_int8_t reg54 = pci_read_config(gparent, 0x54, 1);
1021 
1022 	    reg54 &= ~(0x03 << (devno << 1));
1023 	    if (mode >= ATA_UDMA0)
1024 		reg54 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 1));
1025 	    pci_write_config(gparent, 0x54, reg54, 1);
1026 	    pci_write_config(gparent, 0x4a, 0xa6, 1);
1027 	    pci_write_config(gparent, 0x40 + (devno << 1), 0x0301, 2);
1028 	    atadev->mode = mode;
1029 	    return;
1030 	}
1031     }
1032     /* we could set PIO mode timings, but we assume the BIOS did that */
1033 }
1034 
1035 static void
1036 ata_acard_86X_setmode(device_t dev, int mode)
1037 {
1038     device_t gparent = GRANDPARENT(dev);
1039     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1040     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1041     struct ata_device *atadev = device_get_softc(dev);
1042     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1043     int error;
1044 
1045 
1046     mode = ata_limit_mode(dev, mode,
1047 			  ata_atapi(dev) ? ATA_PIO_MAX : ctlr->chip->max_dma);
1048 
1049     mode = ata_check_80pin(dev, mode);
1050 
1051     /* XXX SOS missing WDMA0+1 + PIO modes */
1052     if (mode >= ATA_WDMA2) {
1053 	error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1054 	if (bootverbose)
1055 	    device_printf(dev, "%ssetting %s on %s chip\n",
1056 			  (error) ? "FAILURE " : "",
1057 			  ata_mode2str(mode), ctlr->chip->text);
1058 	if (!error) {
1059 	    u_int16_t reg44 = pci_read_config(gparent, 0x44, 2);
1060 
1061 	    reg44 &= ~(0x000f << (devno << 2));
1062 	    if (mode >= ATA_UDMA0)
1063 		reg44 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 2));
1064 	    pci_write_config(gparent, 0x44, reg44, 2);
1065 	    pci_write_config(gparent, 0x4a, 0xa6, 1);
1066 	    pci_write_config(gparent, 0x40 + devno, 0x31, 1);
1067 	    atadev->mode = mode;
1068 	    return;
1069 	}
1070     }
1071     /* we could set PIO mode timings, but we assume the BIOS did that */
1072 }
1073 
1074 
1075 /*
1076  * Acer Labs Inc (ALI) chipset support functions
1077  */
1078 int
1079 ata_ali_ident(device_t dev)
1080 {
1081     struct ata_pci_controller *ctlr = device_get_softc(dev);
1082     struct ata_chip_id *idx;
1083     static struct ata_chip_id ids[] =
1084     {{ ATA_ALI_5289, 0x00, 2, ALISATA, ATA_SA150, "M5289" },
1085      { ATA_ALI_5288, 0x00, 4, ALISATA, ATA_SA300, "M5288" },
1086      { ATA_ALI_5287, 0x00, 4, ALISATA, ATA_SA150, "M5287" },
1087      { ATA_ALI_5281, 0x00, 2, ALISATA, ATA_SA150, "M5281" },
1088      { ATA_ALI_5229, 0xc5, 0, ALINEW,  ATA_UDMA6, "M5229" },
1089      { ATA_ALI_5229, 0xc4, 0, ALINEW,  ATA_UDMA5, "M5229" },
1090      { ATA_ALI_5229, 0xc2, 0, ALINEW,  ATA_UDMA4, "M5229" },
1091      { ATA_ALI_5229, 0x20, 0, ALIOLD,  ATA_UDMA2, "M5229" },
1092      { ATA_ALI_5229, 0x00, 0, ALIOLD,  ATA_WDMA2, "M5229" },
1093      { 0, 0, 0, 0, 0, 0}};
1094     char buffer[64];
1095 
1096     if (!(idx = ata_match_chip(dev, ids)))
1097 	return ENXIO;
1098 
1099     ksprintf(buffer, "AcerLabs %s %s controller",
1100 	    idx->text, ata_mode2str(idx->max_dma));
1101     device_set_desc_copy(dev, buffer);
1102     ctlr->chip = idx;
1103     ctlr->chipinit = ata_ali_chipinit;
1104     return 0;
1105 }
1106 
1107 static int
1108 ata_ali_chipinit(device_t dev)
1109 {
1110     struct ata_pci_controller *ctlr = device_get_softc(dev);
1111 
1112     if (ata_setup_interrupt(dev))
1113 	return ENXIO;
1114 
1115     switch (ctlr->chip->cfg2) {
1116     case ALISATA:
1117 	ctlr->channels = ctlr->chip->cfg1;
1118 	ctlr->allocate = ata_ali_sata_allocate;
1119 	ctlr->setmode = ata_sata_setmode;
1120 
1121 	/* AHCI mode is correctly supported only on the ALi 5288. */
1122 	if ((ctlr->chip->chipid == ATA_ALI_5288) &&
1123 	    (ata_ahci_chipinit(dev) != ENXIO))
1124 		return 0;
1125 
1126 	/* enable PCI interrupt */
1127 	pci_write_config(dev, PCIR_COMMAND,
1128 			 pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
1129 	break;
1130 
1131     case ALINEW:
1132 	/* use device interrupt as byte count end */
1133 	pci_write_config(dev, 0x4a, pci_read_config(dev, 0x4a, 1) | 0x20, 1);
1134 
1135 	/* enable cable detection and UDMA support on newer chips */
1136 	pci_write_config(dev, 0x4b, pci_read_config(dev, 0x4b, 1) | 0x09, 1);
1137 
1138 	/* enable ATAPI UDMA mode */
1139 	pci_write_config(dev, 0x53, pci_read_config(dev, 0x53, 1) | 0x01, 1);
1140 
1141 	/* only chips with revision > 0xc4 can do 48bit DMA */
1142 	if (ctlr->chip->chiprev <= 0xc4)
1143 	    device_printf(dev,
1144 			  "using PIO transfers above 137GB as workaround for "
1145 			  "48bit DMA access bug, expect reduced performance\n");
1146 	ctlr->allocate = ata_ali_allocate;
1147 	ctlr->reset = ata_ali_reset;
1148 	ctlr->setmode = ata_ali_setmode;
1149 	break;
1150 
1151     case ALIOLD:
1152 	/* deactivate the ATAPI FIFO and enable ATAPI UDMA */
1153 	pci_write_config(dev, 0x53, pci_read_config(dev, 0x53, 1) | 0x03, 1);
1154 	ctlr->setmode = ata_ali_setmode;
1155 	break;
1156     }
1157     return 0;
1158 }
1159 
1160 static int
1161 ata_ali_allocate(device_t dev)
1162 {
1163     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1164     struct ata_channel *ch = device_get_softc(dev);
1165 
1166     /* setup the usual register normal pci style */
1167     if (ata_pci_allocate(dev))
1168 	return ENXIO;
1169 
1170     /* older chips can't do 48bit DMA transfers */
1171     if (ctlr->chip->chiprev <= 0xc4)
1172 	ch->flags |= ATA_NO_48BIT_DMA;
1173 
1174     return 0;
1175 }
1176 
1177 static int
1178 ata_ali_sata_allocate(device_t dev)
1179 {
1180     device_t parent = device_get_parent(dev);
1181     struct ata_pci_controller *ctlr = device_get_softc(parent);
1182     struct ata_channel *ch = device_get_softc(dev);
1183     struct resource *io = NULL, *ctlio = NULL;
1184     int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2);
1185     int i, rid;
1186 
1187     rid = PCIR_BAR(0) + (unit01 ? 8 : 0);
1188     io = bus_alloc_resource_any(parent, SYS_RES_IOPORT, &rid, RF_ACTIVE);
1189     if (!io)
1190 	return ENXIO;
1191 
1192     rid = PCIR_BAR(1) + (unit01 ? 8 : 0);
1193     ctlio = bus_alloc_resource_any(parent, SYS_RES_IOPORT, &rid, RF_ACTIVE);
1194     if (!ctlio) {
1195 	bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
1196 	return ENXIO;
1197     }
1198 
1199     for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
1200 	ch->r_io[i].res = io;
1201 	ch->r_io[i].offset = i + (unit10 ? 8 : 0);
1202     }
1203     ch->r_io[ATA_CONTROL].res = ctlio;
1204     ch->r_io[ATA_CONTROL].offset = 2 + (unit10 ? 4 : 0);
1205     ch->r_io[ATA_IDX_ADDR].res = io;
1206     ata_default_registers(dev);
1207     if (ctlr->r_res1) {
1208 	for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
1209 	    ch->r_io[i].res = ctlr->r_res1;
1210 	    ch->r_io[i].offset = (i - ATA_BMCMD_PORT)+(ch->unit * ATA_BMIOSIZE);
1211 	}
1212     }
1213     ch->flags |= ATA_NO_SLAVE;
1214 
1215     /* XXX SOS PHY handling awkward in ALI chip not supported yet */
1216     ata_pci_hw(dev);
1217     return 0;
1218 }
1219 
1220 static void
1221 ata_ali_reset(device_t dev)
1222 {
1223     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1224     struct ata_channel *ch = device_get_softc(dev);
1225     device_t *children;
1226     int nchildren, i;
1227 
1228     ata_generic_reset(dev);
1229 
1230     /*
1231      * workaround for datacorruption bug found on at least SUN Blade-100
1232      * find the ISA function on the southbridge and disable then enable
1233      * the ATA channel tristate buffer
1234      */
1235     if (ctlr->chip->chiprev == 0xc3 || ctlr->chip->chiprev == 0xc2) {
1236 	if (!device_get_children(GRANDPARENT(dev), &children, &nchildren)) {
1237 	    for (i = 0; i < nchildren; i++) {
1238 		if (pci_get_devid(children[i]) == ATA_ALI_1533) {
1239 		    pci_write_config(children[i], 0x58,
1240 				     pci_read_config(children[i], 0x58, 1) &
1241 				     ~(0x04 << ch->unit), 1);
1242 		    pci_write_config(children[i], 0x58,
1243 				     pci_read_config(children[i], 0x58, 1) |
1244 				     (0x04 << ch->unit), 1);
1245 		    break;
1246 		}
1247 	    }
1248 	    kfree(children, M_TEMP);
1249 	}
1250     }
1251 }
1252 
1253 static void
1254 ata_ali_setmode(device_t dev, int mode)
1255 {
1256     device_t gparent = GRANDPARENT(dev);
1257     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1258     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1259     struct ata_device *atadev = device_get_softc(dev);
1260     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1261     int error;
1262 
1263     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
1264 
1265     if (ctlr->chip->cfg2 & ALINEW) {
1266 	if (mode > ATA_UDMA2 &&
1267 	    pci_read_config(gparent, 0x4a, 1) & (1 << ch->unit)) {
1268 	    ata_print_cable(dev, "controller");
1269 	    mode = ATA_UDMA2;
1270 	}
1271     }
1272     else
1273 	mode = ata_check_80pin(dev, mode);
1274 
1275     if (ctlr->chip->cfg2 & ALIOLD) {
1276 	/* doesn't support ATAPI DMA on write */
1277 	ch->flags |= ATA_ATAPI_DMA_RO;
1278 	if (ch->devices & ATA_ATAPI_MASTER && ch->devices & ATA_ATAPI_SLAVE) {
1279 	    /* doesn't support ATAPI DMA on two ATAPI devices */
1280 	    device_printf(dev, "two atapi devices on this channel, no DMA\n");
1281 	    mode = ata_limit_mode(dev, mode, ATA_PIO_MAX);
1282 	}
1283     }
1284 
1285     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1286 
1287     if (bootverbose)
1288 	device_printf(dev, "%ssetting %s on %s chip\n",
1289 		   (error) ? "FAILURE " : "",
1290 		   ata_mode2str(mode), ctlr->chip->text);
1291     if (!error) {
1292 	if (mode >= ATA_UDMA0) {
1293 	    u_int8_t udma[] = {0x0c, 0x0b, 0x0a, 0x09, 0x08, 0x0f, 0x0d};
1294 	    u_int32_t word54 = pci_read_config(gparent, 0x54, 4);
1295 
1296 	    word54 &= ~(0x000f000f << (devno << 2));
1297 	    word54 |= (((udma[mode&ATA_MODE_MASK]<<16)|0x05)<<(devno<<2));
1298 	    pci_write_config(gparent, 0x54, word54, 4);
1299 	    pci_write_config(gparent, 0x58 + (ch->unit << 2),
1300 			     0x00310001, 4);
1301 	}
1302 	else {
1303 	    u_int32_t piotimings[] =
1304 		{ 0x006d0003, 0x00580002, 0x00440001, 0x00330001,
1305 		  0x00310001, 0x00440001, 0x00330001, 0x00310001};
1306 
1307 	    pci_write_config(gparent, 0x54, pci_read_config(gparent, 0x54, 4) &
1308 					    ~(0x0008000f << (devno << 2)), 4);
1309 	    pci_write_config(gparent, 0x58 + (ch->unit << 2),
1310 			     piotimings[ata_mode2idx(mode)], 4);
1311 	}
1312 	atadev->mode = mode;
1313     }
1314 }
1315 
1316 
1317 /*
1318  * American Micro Devices (AMD) chipset support functions
1319  */
1320 int
1321 ata_amd_ident(device_t dev)
1322 {
1323     struct ata_pci_controller *ctlr = device_get_softc(dev);
1324     struct ata_chip_id *idx;
1325     static struct ata_chip_id ids[] =
1326     {{ ATA_AMD756,  0x00, AMDNVIDIA, 0x00,            ATA_UDMA4, "756" },
1327      { ATA_AMD766,  0x00, AMDNVIDIA, AMDCABLE|AMDBUG, ATA_UDMA5, "766" },
1328      { ATA_AMD768,  0x00, AMDNVIDIA, AMDCABLE,        ATA_UDMA5, "768" },
1329      { ATA_AMD8111, 0x00, AMDNVIDIA, AMDCABLE,        ATA_UDMA6, "8111" },
1330      { 0, 0, 0, 0, 0, 0}};
1331     char buffer[64];
1332 
1333     if (!(idx = ata_match_chip(dev, ids)))
1334 	return ENXIO;
1335 
1336     ksprintf(buffer, "AMD %s %s controller",
1337 	    idx->text, ata_mode2str(idx->max_dma));
1338     device_set_desc_copy(dev, buffer);
1339     ctlr->chip = idx;
1340     ctlr->chipinit = ata_amd_chipinit;
1341     return 0;
1342 }
1343 
1344 static int
1345 ata_amd_chipinit(device_t dev)
1346 {
1347     struct ata_pci_controller *ctlr = device_get_softc(dev);
1348 
1349     if (ata_setup_interrupt(dev))
1350 	return ENXIO;
1351 
1352     /* disable/set prefetch, postwrite */
1353     if (ctlr->chip->cfg2 & AMDBUG)
1354 	pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) & 0x0f, 1);
1355     else
1356 	pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) | 0xf0, 1);
1357 
1358     ctlr->setmode = ata_via_family_setmode;
1359     return 0;
1360 }
1361 
1362 
1363 /*
1364  * ATI chipset support functions
1365  */
1366 int
1367 ata_ati_ident(device_t dev)
1368 {
1369     struct ata_pci_controller *ctlr = device_get_softc(dev);
1370     struct ata_chip_id *idx;
1371     static struct ata_chip_id ids[] =
1372     {{ ATA_ATI_IXP200,    0x00, 0,        0, ATA_UDMA5, "IXP200" },
1373      { ATA_ATI_IXP300,    0x00, 0,        0, ATA_UDMA6, "IXP300" },
1374      { ATA_ATI_IXP400,    0x00, 0,        0, ATA_UDMA6, "IXP400" },
1375      { ATA_ATI_SB600,     0x00, 0,        0, ATA_UDMA6, "SB600"  },
1376      { ATA_ATI_IXP300_S1, 0x00, SIIMEMIO, 0, ATA_SA150, "IXP300" },
1377      { ATA_ATI_IXP400_S1, 0x00, SIIMEMIO, 0, ATA_SA150, "IXP400" },
1378      { ATA_ATI_IXP400_S2, 0x00, SIIMEMIO, 0, ATA_SA150, "IXP400" },
1379      { ATA_ATI_SB600_S1,  0x00, ATIAHCI,     0, ATA_SA300, "SB600"  },
1380      { ATA_ATI_SB600_S2,  0x00, ATIAHCI,     0, ATA_SA300, "SB600"  },
1381      { 0, 0, 0, 0, 0, 0}};
1382     char buffer[64];
1383 
1384     if (!(idx = ata_match_chip(dev, ids)))
1385 	return ENXIO;
1386 
1387     ksprintf(buffer, "ATI %s %s controller",
1388 	    idx->text, ata_mode2str(idx->max_dma));
1389     device_set_desc_copy(dev, buffer);
1390     ctlr->chip = idx;
1391 
1392     /*
1393      * The ATI SATA controllers are actually a SiI 3112 controller, except
1394      * for the SB600.
1395      */
1396     if (ctlr->chip->cfg1 & SIIMEMIO)
1397 	ctlr->chipinit = ata_sii_chipinit;
1398     else
1399 	ctlr->chipinit = ata_ati_chipinit;
1400     return 0;
1401 }
1402 
1403 static int
1404 ata_ati_chipinit(device_t dev)
1405 {
1406     struct ata_pci_controller *ctlr = device_get_softc(dev);
1407 
1408     if (ata_setup_interrupt(dev))
1409 	return ENXIO;
1410 
1411     /* The SB600 needs special treatment. */
1412     if (ctlr->chip->cfg1 & ATIAHCI) {
1413 	/* Check if the chip is configured as an AHCI part. */
1414 	if ((pci_get_subclass(dev) == PCIS_STORAGE_SATA) &&
1415 	    (pci_read_config(dev, PCIR_PROGIF, 1) == PCIP_STORAGE_SATA_AHCI_1_0)) {
1416 	    if (ata_ahci_chipinit(dev) != ENXIO)
1417 		return 0;
1418 	}
1419     }
1420 
1421     ctlr->setmode = ata_ati_setmode;
1422     return 0;
1423 }
1424 
1425 static void
1426 ata_ati_setmode(device_t dev, int mode)
1427 {
1428     device_t gparent = GRANDPARENT(dev);
1429     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1430     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1431     struct ata_device *atadev = device_get_softc(dev);
1432     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1433     int offset = (devno ^ 0x01) << 3;
1434     int error;
1435     u_int8_t piotimings[] = { 0x5d, 0x47, 0x34, 0x22, 0x20, 0x34, 0x22, 0x20,
1436 			      0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
1437     u_int8_t dmatimings[] = { 0x77, 0x21, 0x20 };
1438 
1439     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
1440 
1441     mode = ata_check_80pin(dev, mode);
1442 
1443     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1444 
1445     if (bootverbose)
1446 	device_printf(dev, "%ssetting %s on %s chip\n",
1447 		      (error) ? "FAILURE " : "",
1448 		      ata_mode2str(mode), ctlr->chip->text);
1449     if (!error) {
1450 	if (mode >= ATA_UDMA0) {
1451 	    pci_write_config(gparent, 0x56,
1452 			     (pci_read_config(gparent, 0x56, 2) &
1453 			      ~(0xf << (devno << 2))) |
1454 			     ((mode & ATA_MODE_MASK) << (devno << 2)), 2);
1455 	    pci_write_config(gparent, 0x54,
1456 			     pci_read_config(gparent, 0x54, 1) |
1457 			     (0x01 << devno), 1);
1458 	    pci_write_config(gparent, 0x44,
1459 			     (pci_read_config(gparent, 0x44, 4) &
1460 			      ~(0xff << offset)) |
1461 			     (dmatimings[2] << offset), 4);
1462 	}
1463 	else if (mode >= ATA_WDMA0) {
1464 	    pci_write_config(gparent, 0x54,
1465 			     pci_read_config(gparent, 0x54, 1) &
1466 			      ~(0x01 << devno), 1);
1467 	    pci_write_config(gparent, 0x44,
1468 			     (pci_read_config(gparent, 0x44, 4) &
1469 			      ~(0xff << offset)) |
1470 			     (dmatimings[mode & ATA_MODE_MASK] << offset), 4);
1471 	}
1472 	else
1473 	    pci_write_config(gparent, 0x54,
1474 			     pci_read_config(gparent, 0x54, 1) &
1475 			     ~(0x01 << devno), 1);
1476 
1477 	pci_write_config(gparent, 0x4a,
1478 			 (pci_read_config(gparent, 0x4a, 2) &
1479 			  ~(0xf << (devno << 2))) |
1480 			 (((mode - ATA_PIO0) & ATA_MODE_MASK) << (devno<<2)),2);
1481 	pci_write_config(gparent, 0x40,
1482 			 (pci_read_config(gparent, 0x40, 4) &
1483 			  ~(0xff << offset)) |
1484 			 (piotimings[ata_mode2idx(mode)] << offset), 4);
1485 	atadev->mode = mode;
1486     }
1487 }
1488 
1489 /*
1490  * Cyrix chipset support functions
1491  */
1492 int
1493 ata_cyrix_ident(device_t dev)
1494 {
1495     struct ata_pci_controller *ctlr = device_get_softc(dev);
1496 
1497     if (pci_get_devid(dev) == ATA_CYRIX_5530) {
1498 	device_set_desc(dev, "Cyrix 5530 ATA33 controller");
1499 	ctlr->chipinit = ata_cyrix_chipinit;
1500 	return 0;
1501     }
1502     return ENXIO;
1503 }
1504 
1505 static int
1506 ata_cyrix_chipinit(device_t dev)
1507 {
1508     struct ata_pci_controller *ctlr = device_get_softc(dev);
1509 
1510     if (ata_setup_interrupt(dev))
1511 	return ENXIO;
1512 
1513     if (ctlr->r_res1)
1514 	ctlr->setmode = ata_cyrix_setmode;
1515     else
1516 	ctlr->setmode = ata_generic_setmode;
1517     return 0;
1518 }
1519 
1520 static void
1521 ata_cyrix_setmode(device_t dev, int mode)
1522 {
1523     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1524     struct ata_device *atadev = device_get_softc(dev);
1525     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1526     u_int32_t piotiming[] =
1527 	{ 0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010 };
1528     u_int32_t dmatiming[] = { 0x00077771, 0x00012121, 0x00002020 };
1529     u_int32_t udmatiming[] = { 0x00921250, 0x00911140, 0x00911030 };
1530     int error;
1531 
1532     ch->dma->alignment = 16;
1533     ch->dma->max_iosize = 126 * DEV_BSIZE;
1534 
1535     mode = ata_limit_mode(dev, mode, ATA_UDMA2);
1536 
1537     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1538 
1539     if (bootverbose)
1540 	device_printf(dev, "%ssetting %s on Cyrix chip\n",
1541 		      (error) ? "FAILURE " : "", ata_mode2str(mode));
1542     if (!error) {
1543 	if (mode >= ATA_UDMA0) {
1544 	    ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
1545 		     0x24 + (devno << 3), udmatiming[mode & ATA_MODE_MASK]);
1546 	}
1547 	else if (mode >= ATA_WDMA0) {
1548 	    ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
1549 		     0x24 + (devno << 3), dmatiming[mode & ATA_MODE_MASK]);
1550 	}
1551 	else {
1552 	    ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
1553 		     0x20 + (devno << 3), piotiming[mode & ATA_MODE_MASK]);
1554 	}
1555 	atadev->mode = mode;
1556     }
1557 }
1558 
1559 
1560 /*
1561  * Cypress chipset support functions
1562  */
1563 int
1564 ata_cypress_ident(device_t dev)
1565 {
1566     struct ata_pci_controller *ctlr = device_get_softc(dev);
1567 
1568     /*
1569      * the Cypress chip is a mess, it contains two ATA functions, but
1570      * both channels are visible on the first one.
1571      * simply ignore the second function for now, as the right
1572      * solution (ignoring the second channel on the first function)
1573      * doesn't work with the crappy ATA interrupt setup on the alpha.
1574      */
1575     if (pci_get_devid(dev) == ATA_CYPRESS_82C693 &&
1576 	pci_get_function(dev) == 1 &&
1577 	pci_get_subclass(dev) == PCIS_STORAGE_IDE) {
1578 	device_set_desc(dev, "Cypress 82C693 ATA controller");
1579 	ctlr->chipinit = ata_cypress_chipinit;
1580 	return 0;
1581     }
1582     return ENXIO;
1583 }
1584 
1585 static int
1586 ata_cypress_chipinit(device_t dev)
1587 {
1588     struct ata_pci_controller *ctlr = device_get_softc(dev);
1589 
1590     if (ata_setup_interrupt(dev))
1591 	return ENXIO;
1592 
1593     ctlr->setmode = ata_cypress_setmode;
1594     return 0;
1595 }
1596 
1597 static void
1598 ata_cypress_setmode(device_t dev, int mode)
1599 {
1600     device_t gparent = GRANDPARENT(dev);
1601     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1602     struct ata_device *atadev = device_get_softc(dev);
1603     int error;
1604 
1605     mode = ata_limit_mode(dev, mode, ATA_WDMA2);
1606 
1607     /* XXX SOS missing WDMA0+1 + PIO modes */
1608     if (mode == ATA_WDMA2) {
1609 	error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1610 	if (bootverbose)
1611 	    device_printf(dev, "%ssetting WDMA2 on Cypress chip\n",
1612 			  error ? "FAILURE " : "");
1613 	if (!error) {
1614 	    pci_write_config(gparent, ch->unit ? 0x4e : 0x4c, 0x2020, 2);
1615 	    atadev->mode = mode;
1616 	    return;
1617 	}
1618     }
1619     /* we could set PIO mode timings, but we assume the BIOS did that */
1620 }
1621 
1622 
1623 /*
1624  * HighPoint chipset support functions
1625  */
1626 int
1627 ata_highpoint_ident(device_t dev)
1628 {
1629     struct ata_pci_controller *ctlr = device_get_softc(dev);
1630     struct ata_chip_id *idx;
1631     static struct ata_chip_id ids[] =
1632     {{ ATA_HPT374, 0x07, HPT374, 0x00,   ATA_UDMA6, "HPT374" },
1633      { ATA_HPT372, 0x02, HPT372, 0x00,   ATA_UDMA6, "HPT372N" },
1634      { ATA_HPT372, 0x01, HPT372, 0x00,   ATA_UDMA6, "HPT372" },
1635      { ATA_HPT371, 0x01, HPT372, 0x00,   ATA_UDMA6, "HPT371" },
1636      { ATA_HPT366, 0x05, HPT372, 0x00,   ATA_UDMA6, "HPT372" },
1637      { ATA_HPT366, 0x03, HPT370, 0x00,   ATA_UDMA5, "HPT370" },
1638      { ATA_HPT366, 0x02, HPT366, 0x00,   ATA_UDMA4, "HPT368" },
1639      { ATA_HPT366, 0x00, HPT366, HPTOLD, ATA_UDMA4, "HPT366" },
1640      { ATA_HPT302, 0x01, HPT372, 0x00,   ATA_UDMA6, "HPT302" },
1641      { 0, 0, 0, 0, 0, 0}};
1642     char buffer[64];
1643 
1644     if (!(idx = ata_match_chip(dev, ids)))
1645 	return ENXIO;
1646 
1647     strcpy(buffer, "HighPoint ");
1648     strcat(buffer, idx->text);
1649     if (idx->cfg1 == HPT374) {
1650 	if (pci_get_function(dev) == 0)
1651 	    strcat(buffer, " (channel 0+1)");
1652 	if (pci_get_function(dev) == 1)
1653 	    strcat(buffer, " (channel 2+3)");
1654     }
1655     ksprintf(buffer, "%s %s controller", buffer, ata_mode2str(idx->max_dma));
1656     device_set_desc_copy(dev, buffer);
1657     ctlr->chip = idx;
1658     ctlr->chipinit = ata_highpoint_chipinit;
1659     return 0;
1660 }
1661 
1662 static int
1663 ata_highpoint_chipinit(device_t dev)
1664 {
1665     struct ata_pci_controller *ctlr = device_get_softc(dev);
1666 
1667     if (ata_setup_interrupt(dev))
1668 	return ENXIO;
1669 
1670     if (ctlr->chip->cfg2 == HPTOLD) {
1671 	/* disable interrupt prediction */
1672 	pci_write_config(dev, 0x51, (pci_read_config(dev, 0x51, 1) & ~0x80), 1);
1673     }
1674     else {
1675 	/* disable interrupt prediction */
1676 	pci_write_config(dev, 0x51, (pci_read_config(dev, 0x51, 1) & ~0x03), 1);
1677 	pci_write_config(dev, 0x55, (pci_read_config(dev, 0x55, 1) & ~0x03), 1);
1678 
1679 	/* enable interrupts */
1680 	pci_write_config(dev, 0x5a, (pci_read_config(dev, 0x5a, 1) & ~0x10), 1);
1681 
1682 	/* set clocks etc */
1683 	if (ctlr->chip->cfg1 < HPT372)
1684 	    pci_write_config(dev, 0x5b, 0x22, 1);
1685 	else
1686 	    pci_write_config(dev, 0x5b,
1687 			     (pci_read_config(dev, 0x5b, 1) & 0x01) | 0x20, 1);
1688     }
1689     ctlr->allocate = ata_highpoint_allocate;
1690     ctlr->setmode = ata_highpoint_setmode;
1691     return 0;
1692 }
1693 
1694 static int
1695 ata_highpoint_allocate(device_t dev)
1696 {
1697     struct ata_channel *ch = device_get_softc(dev);
1698 
1699     /* setup the usual register normal pci style */
1700     if (ata_pci_allocate(dev))
1701 	return ENXIO;
1702 
1703     ch->flags |= ATA_ALWAYS_DMASTAT;
1704     return 0;
1705 }
1706 
1707 static void
1708 ata_highpoint_setmode(device_t dev, int mode)
1709 {
1710     device_t gparent = GRANDPARENT(dev);
1711     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1712     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1713     struct ata_device *atadev = device_get_softc(dev);
1714     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1715     int error;
1716     u_int32_t timings33[][4] = {
1717     /*    HPT366      HPT370      HPT372      HPT374               mode */
1718 	{ 0x40d0a7aa, 0x06914e57, 0x0d029d5e, 0x0ac1f48a },     /* PIO 0 */
1719 	{ 0x40d0a7a3, 0x06914e43, 0x0d029d26, 0x0ac1f465 },     /* PIO 1 */
1720 	{ 0x40d0a753, 0x06514e33, 0x0c829ca6, 0x0a81f454 },     /* PIO 2 */
1721 	{ 0x40c8a742, 0x06514e22, 0x0c829c84, 0x0a81f443 },     /* PIO 3 */
1722 	{ 0x40c8a731, 0x06514e21, 0x0c829c62, 0x0a81f442 },     /* PIO 4 */
1723 	{ 0x20c8a797, 0x26514e97, 0x2c82922e, 0x228082ea },     /* MWDMA 0 */
1724 	{ 0x20c8a732, 0x26514e33, 0x2c829266, 0x22808254 },     /* MWDMA 1 */
1725 	{ 0x20c8a731, 0x26514e21, 0x2c829262, 0x22808242 },     /* MWDMA 2 */
1726 	{ 0x10c8a731, 0x16514e31, 0x1c829c62, 0x121882ea },     /* UDMA 0 */
1727 	{ 0x10cba731, 0x164d4e31, 0x1c9a9c62, 0x12148254 },     /* UDMA 1 */
1728 	{ 0x10caa731, 0x16494e31, 0x1c929c62, 0x120c8242 },     /* UDMA 2 */
1729 	{ 0x10cfa731, 0x166d4e31, 0x1c8e9c62, 0x128c8242 },     /* UDMA 3 */
1730 	{ 0x10c9a731, 0x16454e31, 0x1c8a9c62, 0x12ac8242 },     /* UDMA 4 */
1731 	{ 0,          0x16454e31, 0x1c8a9c62, 0x12848242 },     /* UDMA 5 */
1732 	{ 0,          0,          0x1c869c62, 0x12808242 }      /* UDMA 6 */
1733     };
1734 
1735     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
1736 
1737     if (ctlr->chip->cfg1 == HPT366 && ata_atapi(dev))
1738 	mode = ata_limit_mode(dev, mode, ATA_PIO_MAX);
1739 
1740     mode = ata_highpoint_check_80pin(dev, mode);
1741 
1742     /*
1743      * most if not all HPT chips cant really handle that the device is
1744      * running at ATA_UDMA6/ATA133 speed, so we cheat at set the device to
1745      * a max of ATA_UDMA5/ATA100 to guard against suboptimal performance
1746      */
1747     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0,
1748 			   ata_limit_mode(dev, mode, ATA_UDMA5));
1749     if (bootverbose)
1750 	device_printf(dev, "%ssetting %s on HighPoint chip\n",
1751 		      (error) ? "FAILURE " : "", ata_mode2str(mode));
1752     if (!error)
1753 	pci_write_config(gparent, 0x40 + (devno << 2),
1754 			 timings33[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
1755     atadev->mode = mode;
1756 }
1757 
1758 static int
1759 ata_highpoint_check_80pin(device_t dev, int mode)
1760 {
1761     device_t gparent = GRANDPARENT(dev);
1762     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1763     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1764     u_int8_t reg, val, res;
1765 
1766     if (ctlr->chip->cfg1 == HPT374 && pci_get_function(gparent) == 1) {
1767 	reg = ch->unit ? 0x57 : 0x53;
1768 	val = pci_read_config(gparent, reg, 1);
1769 	pci_write_config(gparent, reg, val | 0x80, 1);
1770     }
1771     else {
1772 	reg = 0x5b;
1773 	val = pci_read_config(gparent, reg, 1);
1774 	pci_write_config(gparent, reg, val & 0xfe, 1);
1775     }
1776     res = pci_read_config(gparent, 0x5a, 1) & (ch->unit ? 0x1:0x2);
1777     pci_write_config(gparent, reg, val, 1);
1778 
1779     if (mode > ATA_UDMA2 && res) {
1780 	ata_print_cable(dev, "controller");
1781 	mode = ATA_UDMA2;
1782     }
1783     return mode;
1784 }
1785 
1786 
1787 /*
1788  * Intel chipset support functions
1789  */
1790 int
1791 ata_intel_ident(device_t dev)
1792 {
1793     struct ata_pci_controller *ctlr = device_get_softc(dev);
1794     struct ata_chip_id *idx;
1795     static struct ata_chip_id ids[] =
1796     {{ ATA_I82371FB,    0,    0, 0x00, ATA_WDMA2, "PIIX" },
1797      { ATA_I82371SB,    0,    0, 0x00, ATA_WDMA2, "PIIX3" },
1798      { ATA_I82371AB,    0,    0, 0x00, ATA_UDMA2, "PIIX4" },
1799      { ATA_I82443MX,    0,    0, 0x00, ATA_UDMA2, "PIIX4" },
1800      { ATA_I82451NX,    0,    0, 0x00, ATA_UDMA2, "PIIX4" },
1801      { ATA_I82801AB,    0,    0, 0x00, ATA_UDMA2, "ICH0" },
1802      { ATA_I82801AA,    0,    0, 0x00, ATA_UDMA4, "ICH" },
1803      { ATA_I82372FB,    0,    0, 0x00, ATA_UDMA4, "ICH" },
1804      { ATA_I82801BA,    0,    0, 0x00, ATA_UDMA5, "ICH2" },
1805      { ATA_I82801BA_1,  0,    0, 0x00, ATA_UDMA5, "ICH2" },
1806      { ATA_I82801CA,    0,    0, 0x00, ATA_UDMA5, "ICH3" },
1807      { ATA_I82801CA_1,  0,    0, 0x00, ATA_UDMA5, "ICH3" },
1808      { ATA_I82801DB,    0,    0, 0x00, ATA_UDMA5, "ICH4" },
1809      { ATA_I82801DB_1,  0,    0, 0x00, ATA_UDMA5, "ICH4" },
1810      { ATA_I82801EB,    0,    0, 0x00, ATA_UDMA5, "ICH5" },
1811      { ATA_I82801EB_S1, 0,    0, 0x00, ATA_SA150, "ICH5" },
1812      { ATA_I82801EB_R1, 0,    0, 0x00, ATA_SA150, "ICH5" },
1813      { ATA_I6300ESB,    0,    0, 0x00, ATA_UDMA5, "6300ESB" },
1814      { ATA_I6300ESB_S1, 0,    0, 0x00, ATA_SA150, "6300ESB" },
1815      { ATA_I6300ESB_R1, 0,    0, 0x00, ATA_SA150, "6300ESB" },
1816      { ATA_I82801FB,    0,    0, 0x00, ATA_UDMA5, "ICH6" },
1817      { ATA_I82801FB_S1, 0, AHCI, 0x00, ATA_SA150, "ICH6" },
1818      { ATA_I82801FB_R1, 0, AHCI, 0x00, ATA_SA150, "ICH6" },
1819      { ATA_I82801FBM,   0, AHCI, 0x00, ATA_SA150, "ICH6M" },
1820      { ATA_I82801GB,    0,    0, 0x00, ATA_UDMA5, "ICH7" },
1821      { ATA_I82801GB_S1, 0, AHCI, 0x00, ATA_SA300, "ICH7" },
1822      { ATA_I82801GB_R1, 0, AHCI, 0x00, ATA_SA300, "ICH7" },
1823      { ATA_I82801GB_AH, 0, AHCI, 0x00, ATA_SA300, "ICH7" },
1824      { ATA_I82801GBM_S1, 0, AHCI, 0x00, ATA_SA300, "ICH7M" },
1825      { ATA_I82801GBM_R1, 0, AHCI, 0x00, ATA_SA300, "ICH7M" },
1826      { ATA_I82801GBM_AH, 0, AHCI, 0x00, ATA_SA300, "ICH7M" },
1827      { ATA_I63XXESB2,    0,    0, 0x00, ATA_UDMA5, "63XXESB2" },
1828      { ATA_I63XXESB2_S1, 0, AHCI, 0x00, ATA_SA300, "63XXESB2" },
1829      { ATA_I63XXESB2_S2, 0, AHCI, 0x00, ATA_SA300, "63XXESB2" },
1830      { ATA_I63XXESB2_R1, 0, AHCI, 0x00, ATA_SA300, "63XXESB2" },
1831      { ATA_I63XXESB2_R2, 0, AHCI, 0x00, ATA_SA300, "63XXESB2" },
1832      { ATA_I82801HB_S1,  0, AHCI, 0x00, ATA_SA300, "ICH8" },
1833      { ATA_I82801HB_S2,  0, AHCI, 0x00, ATA_SA300, "ICH8" },
1834      { ATA_I82801HB_R1,  0, AHCI, 0x00, ATA_SA300, "ICH8" },
1835      { ATA_I82801HB_AH4, 0, AHCI, 0x00, ATA_SA300, "ICH8" },
1836      { ATA_I82801HB_AH6, 0, AHCI, 0x00, ATA_SA300, "ICH8" },
1837      { ATA_I82801HBM_S1, 0,    0, 0x00, ATA_SA300, "ICH8M" },
1838      { ATA_I82801HBM_S2, 0, AHCI, 0x00, ATA_SA300, "ICH8M" },
1839      { ATA_I82801HBM_S3, 0, AHCI, 0x00, ATA_SA300, "ICH8M" },
1840      { ATA_I82801IB_S1,  0, AHCI, 0x00, ATA_SA300, "ICH9" },
1841      { ATA_I82801IB_S2,  0, AHCI, 0x00, ATA_SA300, "ICH9" },
1842      { ATA_I82801IB_AH2, 0, AHCI, 0x00, ATA_SA300, "ICH9" },
1843      { ATA_I82801IB_AH4, 0, AHCI, 0x00, ATA_SA300, "ICH9" },
1844      { ATA_I82801IB_AH6, 0, AHCI, 0x00, ATA_SA300, "ICH9" },
1845      { ATA_I31244,      0,    0, 0x00, ATA_SA150, "31244" },
1846      { 0, 0, 0, 0, 0, 0}};
1847     char buffer[64];
1848 
1849     if (!(idx = ata_match_chip(dev, ids)))
1850 	return ENXIO;
1851 
1852     ksprintf(buffer, "Intel %s %s controller",
1853 	    idx->text, ata_mode2str(idx->max_dma));
1854     device_set_desc_copy(dev, buffer);
1855     ctlr->chip = idx;
1856     ctlr->chipinit = ata_intel_chipinit;
1857     return 0;
1858 }
1859 
1860 static int
1861 ata_intel_chipinit(device_t dev)
1862 {
1863     struct ata_pci_controller *ctlr = device_get_softc(dev);
1864 
1865     if (ata_setup_interrupt(dev))
1866 	return ENXIO;
1867 
1868     /* good old PIIX needs special treatment (not implemented) */
1869     if (ctlr->chip->chipid == ATA_I82371FB) {
1870 	ctlr->setmode = ata_intel_old_setmode;
1871     }
1872 
1873     /* the intel 31244 needs special care if in DPA mode */
1874     else if (ctlr->chip->chipid == ATA_I31244) {
1875 	if (pci_get_subclass(dev) != PCIS_STORAGE_IDE) {
1876 	    ctlr->r_type2 = SYS_RES_MEMORY;
1877 	    ctlr->r_rid2 = PCIR_BAR(0);
1878 	    if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
1879 							&ctlr->r_rid2,
1880 							RF_ACTIVE))) {
1881 		ata_teardown_interrupt(dev);
1882 		return ENXIO;
1883 	    }
1884 	    ctlr->channels = 4;
1885 	    ctlr->allocate = ata_intel_31244_allocate;
1886 	    ctlr->reset = ata_intel_31244_reset;
1887 	}
1888 	ctlr->setmode = ata_sata_setmode;
1889     }
1890 
1891     /* non SATA intel chips goes here */
1892     else if (ctlr->chip->max_dma < ATA_SA150) {
1893 	ctlr->allocate = ata_intel_allocate;
1894 	ctlr->setmode = ata_intel_new_setmode;
1895     }
1896 
1897     /* SATA parts can be either compat or AHCI */
1898     else {
1899 	/* force all ports active "the legacy way" */
1900 	pci_write_config(dev, 0x92, pci_read_config(dev, 0x92, 2) | 0x0f,2);
1901 
1902 	ctlr->allocate = ata_intel_allocate;
1903 	ctlr->reset = ata_intel_reset;
1904 
1905 	/*
1906 	 * if we have AHCI capability and BAR(5) as a memory resource
1907 	 * and AHCI or RAID mode enabled in BIOS we go for AHCI mode
1908 	 */
1909 	if ((ctlr->chip->cfg1 == AHCI) &&
1910 	    (pci_read_config(dev, 0x90, 1) & 0xc0) &&
1911 	    (ata_ahci_chipinit(dev) != ENXIO))
1912 	    return 0;
1913 
1914 	/* if BAR(5) is IO it should point to SATA interface registers */
1915 	ctlr->r_type2 = SYS_RES_IOPORT;
1916 	ctlr->r_rid2 = PCIR_BAR(5);
1917 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
1918 						   &ctlr->r_rid2, RF_ACTIVE)))
1919 	    ctlr->setmode = ata_intel_sata_setmode;
1920 	else
1921 	    ctlr->setmode = ata_sata_setmode;
1922 
1923 	/* enable PCI interrupt */
1924 	pci_write_config(dev, PCIR_COMMAND,
1925 			 pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
1926     }
1927     return 0;
1928 }
1929 
1930 static int
1931 ata_intel_allocate(device_t dev)
1932 {
1933     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1934     struct ata_channel *ch = device_get_softc(dev);
1935 
1936     /* setup the usual register normal pci style */
1937     if (ata_pci_allocate(dev))
1938 	return ENXIO;
1939 
1940     /* if r_res2 is valid it points to SATA interface registers */
1941     if (ctlr->r_res2) {
1942 	ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
1943 	ch->r_io[ATA_IDX_ADDR].offset = 0x00;
1944 	ch->r_io[ATA_IDX_DATA].res = ctlr->r_res2;
1945 	ch->r_io[ATA_IDX_DATA].offset = 0x04;
1946     }
1947 
1948     ch->flags |= ATA_ALWAYS_DMASTAT;
1949     return 0;
1950 }
1951 
1952 static void
1953 ata_intel_reset(device_t dev)
1954 {
1955     device_t parent = device_get_parent(dev);
1956     struct ata_pci_controller *ctlr = device_get_softc(parent);
1957     struct ata_channel *ch = device_get_softc(dev);
1958     int mask, timeout;
1959 
1960     /* ICH6 & ICH7 in compat mode has 4 SATA ports as master/slave on 2 ch's */
1961     if (ctlr->chip->cfg1) {
1962 	mask = (0x0005 << ch->unit);
1963     }
1964     else {
1965 	/* ICH5 in compat mode has SATA ports as master/slave on 1 channel */
1966 	if (pci_read_config(parent, 0x90, 1) & 0x04)
1967 	    mask = 0x0003;
1968 	else {
1969 	    mask = (0x0001 << ch->unit);
1970 	    /* XXX SOS should be in intel_allocate if we grow it */
1971 	    ch->flags |= ATA_NO_SLAVE;
1972 	}
1973     }
1974     pci_write_config(parent, 0x92, pci_read_config(parent, 0x92, 2) & ~mask, 2);
1975     DELAY(10);
1976     pci_write_config(parent, 0x92, pci_read_config(parent, 0x92, 2) | mask, 2);
1977 
1978     /* wait up to 1 sec for "connect well" */
1979     for (timeout = 0; timeout < 100 ; timeout++) {
1980 	if (((pci_read_config(parent, 0x92, 2) & (mask << 4)) == (mask << 4)) &&
1981 	    (ATA_IDX_INB(ch, ATA_STATUS) != 0xff))
1982 	    break;
1983 	ata_udelay(10000);
1984     }
1985     ata_generic_reset(dev);
1986 }
1987 
1988 static void
1989 ata_intel_old_setmode(device_t dev, int mode)
1990 {
1991     /* NOT YET */
1992 }
1993 
1994 static void
1995 ata_intel_new_setmode(device_t dev, int mode)
1996 {
1997     device_t gparent = GRANDPARENT(dev);
1998     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1999     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
2000     struct ata_device *atadev = device_get_softc(dev);
2001     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
2002     u_int32_t reg40 = pci_read_config(gparent, 0x40, 4);
2003     u_int8_t reg44 = pci_read_config(gparent, 0x44, 1);
2004     u_int8_t reg48 = pci_read_config(gparent, 0x48, 1);
2005     u_int16_t reg4a = pci_read_config(gparent, 0x4a, 2);
2006     u_int16_t reg54 = pci_read_config(gparent, 0x54, 2);
2007     u_int32_t mask40 = 0, new40 = 0;
2008     u_int8_t mask44 = 0, new44 = 0;
2009     int error;
2010     u_int8_t timings[] = { 0x00, 0x00, 0x10, 0x21, 0x23, 0x10, 0x21, 0x23,
2011 			   0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23 };
2012 			/* PIO0  PIO1  PIO2  PIO3  PIO4  WDMA0 WDMA1 WDMA2 */
2013 			/* UDMA0 UDMA1 UDMA2 UDMA3 UDMA4 UDMA5 UDMA6 */
2014 
2015     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
2016 
2017     if ( mode > ATA_UDMA2 && !(reg54 & (0x10 << devno))) {
2018 	ata_print_cable(dev, "controller");
2019 	mode = ATA_UDMA2;
2020     }
2021 
2022     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
2023 
2024     if (bootverbose)
2025 	device_printf(dev, "%ssetting %s on %s chip\n",
2026 		      (error) ? "FAILURE " : "",
2027 		      ata_mode2str(mode), ctlr->chip->text);
2028     if (error)
2029 	return;
2030 
2031     /*
2032      * reg48: 1 bit per (primary drive 0, primary drive 1, secondary
2033      *			 drive 0, secondary drive 1)
2034      *
2035      *		0 Disable Ultra DMA mode
2036      *		1 Enable Ultra DMA mode
2037      *
2038      * reg4a: 4 bits per (primary drive 0, primary drive 1, secondary
2039      *			  drive 0, secondary drive 1).
2040      * 		0000 UDMA mode 0
2041      *		0001 UDMA mode 1, 3, 5
2042      *		0010 UDMA mode 2, 4, reserved
2043      *		0011 reserved
2044      *		(top two bits for each drive reserved)
2045      */
2046 #if 0
2047     device_printf(dev,
2048 		  "regs before 40=%08x 44=%02x 48=%02x 4a=%04x 54=%04x\n",
2049 		  reg40, reg44, reg48 ,reg4a, reg54);
2050 #endif
2051     reg48 &= ~(0x0001 << devno);
2052     reg4a &= ~(0x3 << (devno << 2));
2053     if (mode >= ATA_UDMA0) {
2054 	reg48 |= 0x0001 << devno;
2055 	if (mode > ATA_UDMA0)
2056 	    reg4a |= (1 + !(mode & 0x01)) << (devno << 2);
2057     }
2058     pci_write_config(gparent, 0x48, reg48, 2);
2059     pci_write_config(gparent, 0x4a, reg4a, 2);
2060 
2061     /*
2062      * reg54:
2063      *
2064      *	32:20	reserved
2065      *	19:18	Secondary ATA signal mode
2066      *  17:16	Primary ATA signal mode
2067      *		00 = Normal (enabled)
2068      *		01 = Tri-state (disabled)
2069      *		10 = Drive Low (disabled)
2070      *		11 = Reserved
2071      *
2072      *  15	Secondary drive 1	- Base Clock
2073      *  14	Secondary drive 0	- Base Clock
2074      *  13	Primary drive 1		- Base Clock
2075      *	12	Primary drive 0		- Base Clock
2076      *		0 = Select 33 MHz clock
2077      *		1 = Select 100 Mhz clock
2078      *
2079      *	11	Reserved
2080      *	10	Vendor specific (set by BIOS?)
2081      *  09:08	Reserved
2082      *
2083      *  07	Secondary drive 1 	- Cable Type
2084      *  06	Secondary drive 0	- Cable Type
2085      *  05	Primary drive 1		- Cable Type
2086      *	04	Primary drive 0		- Cable Type
2087      *		0 = 40 Conductor
2088      *		1 = 80 Conductor (or high speed cable)
2089      *
2090      *  03	Secondary drive 1 	- Select 33/66 clock
2091      *  02	Secondary drive 0	- Select 33/66 clock
2092      *  01	Primary drive 1		- Select 33/66 clock
2093      *	00	Primary drive 0		- Select 33/66 clock
2094      *		0 = Select 33 MHz
2095      *		1 = Select 66 MHz
2096      *
2097      *		It is unclear what this should be set to when operating
2098      *		in 100MHz mode.
2099      *
2100      * NOTE: UDMA2 = 33 MHz
2101      *	     UDMA3 = 40 MHz (?) - unsupported
2102      *	     UDMA4 = 66 MHz
2103      *	     UDMA5 = 100 MHz
2104      *	     UDMA6 = 133 Mhz
2105      */
2106     reg54 |= 0x0400;	/* set vendor specific bit */
2107     reg54 &= ~((0x1 << devno) | (0x1000 << devno));
2108 
2109     if (mode >= ATA_UDMA5)
2110 	reg54 |= (0x1000 << devno);
2111     else if (mode >= ATA_UDMA3)	/* XXX should this be ATA_UDMA3 or 4? */
2112 	reg54 |= (0x1 << devno);
2113 
2114     pci_write_config(gparent, 0x54, reg54, 2);
2115 
2116     /*
2117      * Reg40 (32 bits... well, actually two 16 bit registers)
2118      *
2119      * Primary channel bits 15:00, Secondary channel bits 31:00.  Note
2120      * that slave timings are handled in register 44.
2121      *
2122      * 15	ATA Decode Enable (R/W) 1 = enable decoding of I/O ranges
2123      *
2124      * 14	Slave ATA Timing Register Enable (R/W)
2125      *
2126      * 13:12	IORDY Sample Mode
2127      *		00	PIO-0
2128      *		01	PIO-2, SW-2
2129      *		10	PIO-3, PIO-4, MW-1, MW-2
2130      *		11	Reserved
2131      *
2132      * 11:10	Reserved
2133      *
2134      * 09:08	Recovery Mode
2135      *		00	PIO-0, PIO-2, SW-2
2136      *		01	PIO-3, MW-1
2137      *		10	Reserved
2138      *		11	PIO-4, MW-2
2139      *
2140      * 07:04	Secondary Device Control Bits
2141      * 03:00	Primary Device Control Bits
2142      *
2143      *		bit 3	DMA Timing Enable
2144      *
2145      *		bit 2	Indicate Presence of ATA(1) or ATAPI(0) device
2146      *
2147      *		bit 1	Enable IORDY sample point capability for PIO
2148      *			xfers.  Always enabled for PIO4 and PIO3, enabled
2149      *			for PIO2 if indicated by the device, and otherwise
2150      *			probably should be 0.
2151      *
2152      *		bit 0	Fast Drive Timing Enable.  Enables faster then PIO-0
2153      *			timing modes.
2154      */
2155 
2156     /*
2157      * Modify reg40 according to the table
2158      */
2159     if (atadev->unit == ATA_MASTER) {
2160 	mask40 = 0x3300;
2161 	new40 = timings[ata_mode2idx(mode)] << 8;
2162     }
2163     else {
2164 	mask44 = 0x0f;
2165 	new44 = ((timings[ata_mode2idx(mode)] & 0x30) >> 2) |
2166 		(timings[ata_mode2idx(mode)] & 0x03);
2167     }
2168 
2169     /*
2170      * Slave ATA timing register enable
2171      */
2172     mask40 |= 0x4000;
2173     new40  |= 0x4000;
2174 
2175     /*
2176      * Device control bits 3:0 for master, 7:4 for slave.
2177      *
2178      * bit3 DMA Timing enable.
2179      * bit2 Indicate presence of ATA(1) or ATAPI(0) device, set accordingly
2180      * bit1 Enable IORDY sample point capability for PIO xfers.  Always
2181      *	    enabled for PIO4 and PIO3, enabled for PIO2 if indicated by
2182      *	    the device, and otherwise should be 0.
2183      * bit0 Fast Drive Timing Enable.  Enable faster then PIO-0 timing modes.
2184      *
2185      * Set to: 0 x 1 1
2186      */
2187 
2188     if (atadev->unit == ATA_MASTER) {
2189 	mask40 |= 0x0F;
2190 	new40 |= 0x03;
2191 	if (!ata_atapi(dev))
2192 	    new40 |= 0x04;
2193     } else {
2194 	mask40 |= 0xF0;
2195 	new40 |= 0x30;
2196 	if (!ata_atapi(dev))
2197 	    new40 |= 0x40;
2198     }
2199     /*
2200     reg40 &= ~0x00ff00ff;
2201     reg40 |= 0x40774077;
2202     */
2203 
2204     /*
2205      * Primary or Secondary controller
2206      */
2207     if (ch->unit) {
2208 	mask40 <<= 16;
2209 	new40 <<= 16;
2210 	mask44 <<= 4;
2211 	new44 <<= 4;
2212     }
2213     pci_write_config(gparent, 0x40, (reg40 & ~mask40) | new40, 4);
2214     pci_write_config(gparent, 0x44, (reg44 & ~mask44) | new44, 1);
2215 
2216 #if 0
2217     reg40 = pci_read_config(gparent, 0x40, 4);
2218     reg44 = pci_read_config(gparent, 0x44, 1);
2219     reg48 = pci_read_config(gparent, 0x48, 1);
2220     reg4a = pci_read_config(gparent, 0x4a, 2);
2221     reg54 = pci_read_config(gparent, 0x54, 2);
2222     device_printf(dev,
2223 		  "regs after 40=%08x 44=%02x 48=%02x 4a=%04x 54=%04x\n",
2224 		  reg40, reg44, reg48 ,reg4a, reg54);
2225 #endif
2226 
2227     atadev->mode = mode;
2228 }
2229 
2230 static void
2231 ata_intel_sata_setmode(device_t dev, int mode)
2232 {
2233     struct ata_device *atadev = device_get_softc(dev);
2234 
2235     if (atadev->param.satacapabilities != 0x0000 &&
2236 	atadev->param.satacapabilities != 0xffff) {
2237 
2238 	struct ata_channel *ch = device_get_softc(device_get_parent(dev));
2239 	int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
2240 
2241 	/* on some drives we need to set the transfer mode */
2242 	ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0,
2243 		       ata_limit_mode(dev, mode, ATA_UDMA6));
2244 
2245 	/* set ATA_SSTATUS register offset */
2246 	ATA_IDX_OUTL(ch, ATA_IDX_ADDR, devno * 0x100);
2247 
2248 	/* query SATA STATUS for the speed */
2249 	if ((ATA_IDX_INL(ch, ATA_IDX_DATA) & ATA_SS_CONWELL_MASK) ==
2250 	    ATA_SS_CONWELL_GEN2)
2251 	    atadev->mode = ATA_SA300;
2252 	else
2253 	    atadev->mode = ATA_SA150;
2254     }
2255     else {
2256 	mode = ata_limit_mode(dev, mode, ATA_UDMA5);
2257 	if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
2258 	    atadev->mode = mode;
2259     }
2260 }
2261 
2262 static int
2263 ata_intel_31244_allocate(device_t dev)
2264 {
2265     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2266     struct ata_channel *ch = device_get_softc(dev);
2267     int i;
2268     int ch_offset;
2269 
2270     ch_offset = 0x200 + ch->unit * 0x200;
2271 
2272     for (i = ATA_DATA; i < ATA_MAX_RES; i++)
2273 	ch->r_io[i].res = ctlr->r_res2;
2274 
2275     /* setup ATA registers */
2276     ch->r_io[ATA_DATA].offset = ch_offset + 0x00;
2277     ch->r_io[ATA_FEATURE].offset = ch_offset + 0x06;
2278     ch->r_io[ATA_COUNT].offset = ch_offset + 0x08;
2279     ch->r_io[ATA_SECTOR].offset = ch_offset + 0x0c;
2280     ch->r_io[ATA_CYL_LSB].offset = ch_offset + 0x10;
2281     ch->r_io[ATA_CYL_MSB].offset = ch_offset + 0x14;
2282     ch->r_io[ATA_DRIVE].offset = ch_offset + 0x18;
2283     ch->r_io[ATA_COMMAND].offset = ch_offset + 0x1d;
2284     ch->r_io[ATA_ERROR].offset = ch_offset + 0x04;
2285     ch->r_io[ATA_STATUS].offset = ch_offset + 0x1c;
2286     ch->r_io[ATA_ALTSTAT].offset = ch_offset + 0x28;
2287     ch->r_io[ATA_CONTROL].offset = ch_offset + 0x29;
2288 
2289     /* setup DMA registers */
2290     ch->r_io[ATA_SSTATUS].offset = ch_offset + 0x100;
2291     ch->r_io[ATA_SERROR].offset = ch_offset + 0x104;
2292     ch->r_io[ATA_SCONTROL].offset = ch_offset + 0x108;
2293 
2294     /* setup SATA registers */
2295     ch->r_io[ATA_BMCMD_PORT].offset = ch_offset + 0x70;
2296     ch->r_io[ATA_BMSTAT_PORT].offset = ch_offset + 0x72;
2297     ch->r_io[ATA_BMDTP_PORT].offset = ch_offset + 0x74;
2298 
2299     ch->flags |= ATA_NO_SLAVE;
2300     ata_pci_hw(dev);
2301     ch->hw.status = ata_intel_31244_status;
2302     ch->hw.command = ata_intel_31244_command;
2303 
2304     /* enable PHY state change interrupt */
2305     ATA_OUTL(ctlr->r_res2, 0x4,
2306 	     ATA_INL(ctlr->r_res2, 0x04) | (0x01 << (ch->unit << 3)));
2307     return 0;
2308 }
2309 
2310 static int
2311 ata_intel_31244_status(device_t dev)
2312 {
2313     /* do we have any PHY events ? */
2314     ata_sata_phy_check_events(dev);
2315 
2316     /* any drive action to take care of ? */
2317     return ata_pci_status(dev);
2318 }
2319 
2320 static int
2321 ata_intel_31244_command(struct ata_request *request)
2322 {
2323     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
2324     struct ata_device *atadev = device_get_softc(request->dev);
2325     u_int64_t lba;
2326 
2327     if (!(atadev->flags & ATA_D_48BIT_ACTIVE))
2328 	    return (ata_generic_command(request));
2329 
2330     lba = request->u.ata.lba;
2331     ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | atadev->unit);
2332     /* enable interrupt */
2333     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_4BIT);
2334     ATA_IDX_OUTW(ch, ATA_FEATURE, request->u.ata.feature);
2335     ATA_IDX_OUTW(ch, ATA_COUNT, request->u.ata.count);
2336     ATA_IDX_OUTW(ch, ATA_SECTOR, ((lba >> 16) & 0xff00) | (lba & 0x00ff));
2337     ATA_IDX_OUTW(ch, ATA_CYL_LSB, ((lba >> 24) & 0xff00) |
2338 				  ((lba >> 8) & 0x00ff));
2339     ATA_IDX_OUTW(ch, ATA_CYL_MSB, ((lba >> 32) & 0xff00) |
2340 				  ((lba >> 16) & 0x00ff));
2341 
2342     /* issue command to controller */
2343     ATA_IDX_OUTB(ch, ATA_COMMAND, request->u.ata.command);
2344 
2345     return 0;
2346 }
2347 
2348 static void
2349 ata_intel_31244_reset(device_t dev)
2350 {
2351     if (ata_sata_phy_reset(dev))
2352 	ata_generic_reset(dev);
2353 }
2354 
2355 
2356 /*
2357  * Integrated Technology Express Inc. (ITE) chipset support functions
2358  */
2359 int
2360 ata_ite_ident(device_t dev)
2361 {
2362     struct ata_pci_controller *ctlr = device_get_softc(dev);
2363     struct ata_chip_id *idx;
2364     static struct ata_chip_id ids[] =
2365     {{ ATA_IT8212F, 0x00, 0x00, 0x00, ATA_UDMA6, "IT8212F" },
2366      { ATA_IT8211F, 0x00, 0x00, 0x00, ATA_UDMA6, "IT8211F" },
2367      { 0, 0, 0, 0, 0, 0}};
2368     char buffer[64];
2369 
2370     if (!(idx = ata_match_chip(dev, ids)))
2371 	return ENXIO;
2372 
2373     ksprintf(buffer, "ITE %s %s controller",
2374 	    idx->text, ata_mode2str(idx->max_dma));
2375     device_set_desc_copy(dev, buffer);
2376     ctlr->chip = idx;
2377     ctlr->chipinit = ata_ite_chipinit;
2378     return 0;
2379 }
2380 
2381 static int
2382 ata_ite_chipinit(device_t dev)
2383 {
2384     struct ata_pci_controller *ctlr = device_get_softc(dev);
2385 
2386     if (ata_setup_interrupt(dev))
2387 	return ENXIO;
2388 
2389     ctlr->setmode = ata_ite_setmode;
2390 
2391     /* set PCI mode and 66Mhz reference clock */
2392     pci_write_config(dev, 0x50, pci_read_config(dev, 0x50, 1) & ~0x83, 1);
2393 
2394     /* set default active & recover timings */
2395     pci_write_config(dev, 0x54, 0x31, 1);
2396     pci_write_config(dev, 0x56, 0x31, 1);
2397     return 0;
2398 }
2399 
2400 static void
2401 ata_ite_setmode(device_t dev, int mode)
2402 {
2403     device_t gparent = GRANDPARENT(dev);
2404     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
2405     struct ata_device *atadev = device_get_softc(dev);
2406     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
2407     int error;
2408 
2409     /* correct the mode for what the HW supports */
2410     mode = ata_limit_mode(dev, mode, ATA_UDMA6);
2411 
2412     /* check the CBLID bits for 80 conductor cable detection */
2413     if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x40, 2) &
2414 			     (ch->unit ? (1<<3) : (1<<2)))) {
2415 	ata_print_cable(dev, "controller");
2416 	mode = ATA_UDMA2;
2417     }
2418 
2419     /* set the wanted mode on the device */
2420     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
2421 
2422     if (bootverbose)
2423 	device_printf(dev, "%s setting %s on ITE8212F chip\n",
2424 		      (error) ? "failed" : "success", ata_mode2str(mode));
2425 
2426     /* if the device accepted the mode change, setup the HW accordingly */
2427     if (!error) {
2428 	if (mode >= ATA_UDMA0) {
2429 	    u_int8_t udmatiming[] =
2430 		{ 0x44, 0x42, 0x31, 0x21, 0x11, 0xa2, 0x91 };
2431 
2432 	    /* enable UDMA mode */
2433 	    pci_write_config(gparent, 0x50,
2434 			     pci_read_config(gparent, 0x50, 1) &
2435 			     ~(1 << (devno + 3)), 1);
2436 
2437 	    /* set UDMA timing */
2438 	    pci_write_config(gparent,
2439 			     0x56 + (ch->unit << 2) + ATA_DEV(atadev->unit),
2440 			     udmatiming[mode & ATA_MODE_MASK], 1);
2441 	}
2442 	else {
2443 	    u_int8_t chtiming[] =
2444 		{ 0xaa, 0xa3, 0xa1, 0x33, 0x31, 0x88, 0x32, 0x31 };
2445 
2446 	    /* disable UDMA mode */
2447 	    pci_write_config(gparent, 0x50,
2448 			     pci_read_config(gparent, 0x50, 1) |
2449 			     (1 << (devno + 3)), 1);
2450 
2451 	    /* set active and recover timing (shared between master & slave) */
2452 	    if (pci_read_config(gparent, 0x54 + (ch->unit << 2), 1) <
2453 		chtiming[ata_mode2idx(mode)])
2454 		pci_write_config(gparent, 0x54 + (ch->unit << 2),
2455 				 chtiming[ata_mode2idx(mode)], 1);
2456 	}
2457 	atadev->mode = mode;
2458     }
2459 }
2460 
2461 
2462 /*
2463  * JMicron chipset support functions
2464  */
2465 int
2466 ata_jmicron_ident(device_t dev)
2467 {
2468     struct ata_pci_controller *ctlr = device_get_softc(dev);
2469     struct ata_chip_id *idx;
2470     static struct ata_chip_id ids[] =
2471     {{ ATA_JMB360, 0, 1, 0, ATA_SA300, "JMB360" },
2472      { ATA_JMB361, 0, 1, 1, ATA_SA300, "JMB361" },
2473      { ATA_JMB363, 0, 2, 1, ATA_SA300, "JMB363" },
2474      { ATA_JMB365, 0, 1, 2, ATA_SA300, "JMB365" },
2475      { ATA_JMB366, 0, 2, 2, ATA_SA300, "JMB366" },
2476      { ATA_JMB368, 0, 0, 1, ATA_UDMA6, "JMB368" },
2477      { 0, 0, 0, 0, 0, 0}};
2478     char buffer[64];
2479 
2480     if (!(idx = ata_match_chip(dev, ids)))
2481         return ENXIO;
2482 
2483     if ((pci_read_config(dev, 0xdf, 1) & 0x40) &&
2484 	(pci_get_function(dev) == (pci_read_config(dev, 0x40, 1) & 0x02 >> 1)))
2485 	ksnprintf(buffer, sizeof(buffer), "JMicron %s %s controller",
2486 		idx->text, ata_mode2str(ATA_UDMA6));
2487     else
2488 	ksnprintf(buffer, sizeof(buffer), "JMicron %s %s controller",
2489 		idx->text, ata_mode2str(idx->max_dma));
2490     device_set_desc_copy(dev, buffer);
2491     ctlr->chip = idx;
2492     ctlr->chipinit = ata_jmicron_chipinit;
2493     return 0;
2494 }
2495 
2496 static int
2497 ata_jmicron_chipinit(device_t dev)
2498 {
2499     struct ata_pci_controller *ctlr = device_get_softc(dev);
2500     int error;
2501 
2502     if (ata_setup_interrupt(dev))
2503 	return ENXIO;
2504 
2505     /* do we have multiple PCI functions ? */
2506     if (pci_read_config(dev, 0xdf, 1) & 0x40) {
2507 	/* are we on the AHCI part ? */
2508 	if (ata_ahci_chipinit(dev) != ENXIO)
2509 	    return 0;
2510 
2511 	/* otherwise we are on the PATA part */
2512 	ctlr->allocate = ata_pci_allocate;
2513 	ctlr->reset = ata_generic_reset;
2514 	ctlr->dmainit = ata_pci_dmainit;
2515 	ctlr->setmode = ata_jmicron_setmode;
2516 	ctlr->channels = ctlr->chip->cfg2;
2517     }
2518     else {
2519 	/* set controller configuration to a combined setup we support */
2520 	pci_write_config(dev, 0x40, 0x80c0a131, 4);
2521 	pci_write_config(dev, 0x80, 0x01200000, 4);
2522 
2523 	if ((error = ata_ahci_chipinit(dev))) {
2524 	    ata_teardown_interrupt(dev);
2525 	    return error;
2526 	}
2527 
2528 	ctlr->allocate = ata_jmicron_allocate;
2529 	ctlr->reset = ata_jmicron_reset;
2530 	ctlr->dmainit = ata_jmicron_dmainit;
2531 	ctlr->setmode = ata_jmicron_setmode;
2532 
2533 	/* set the number of HW channels */
2534 	ctlr->channels = ctlr->chip->cfg1 + ctlr->chip->cfg2;
2535     }
2536     return 0;
2537 }
2538 
2539 static int
2540 ata_jmicron_allocate(device_t dev)
2541 {
2542     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2543     struct ata_channel *ch = device_get_softc(dev);
2544     int error;
2545 
2546     if (ch->unit >= ctlr->chip->cfg1) {
2547 	ch->unit -= ctlr->chip->cfg1;
2548 	error = ata_pci_allocate(dev);
2549 	ch->unit += ctlr->chip->cfg1;
2550     }
2551     else
2552 	error = ata_ahci_allocate(dev);
2553     return error;
2554 }
2555 
2556 static void
2557 ata_jmicron_reset(device_t dev)
2558 {
2559     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2560     struct ata_channel *ch = device_get_softc(dev);
2561 
2562     if (ch->unit >= ctlr->chip->cfg1)
2563 	ata_generic_reset(dev);
2564     else
2565 	ata_ahci_reset(dev);
2566 }
2567 
2568 static void
2569 ata_jmicron_dmainit(device_t dev)
2570 {
2571     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2572     struct ata_channel *ch = device_get_softc(dev);
2573 
2574     if (ch->unit >= ctlr->chip->cfg1)
2575 	ata_pci_dmainit(dev);
2576     else
2577 	ata_ahci_dmainit(dev);
2578 }
2579 
2580 static void
2581 ata_jmicron_setmode(device_t dev, int mode)
2582 {
2583     struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev));
2584     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
2585 
2586     if (pci_read_config(dev, 0xdf, 1) & 0x40 || ch->unit >= ctlr->chip->cfg1) {
2587 	struct ata_device *atadev = device_get_softc(dev);
2588 
2589 	/* check for 80pin cable present */
2590 	if (pci_read_config(dev, 0x40, 1) & 0x08)
2591 	    mode = ata_limit_mode(dev, mode, ATA_UDMA2);
2592 	else
2593 	    mode = ata_limit_mode(dev, mode, ATA_UDMA6);
2594 
2595 	if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
2596 	    atadev->mode = mode;
2597     }
2598     else
2599 	ata_sata_setmode(dev, mode);
2600 }
2601 
2602 
2603 /*
2604  * Marvell chipset support functions
2605  */
2606 #define ATA_MV_HOST_BASE(ch) \
2607 	((ch->unit & 3) * 0x0100) + (ch->unit > 3 ? 0x30000 : 0x20000)
2608 #define ATA_MV_EDMA_BASE(ch) \
2609 	((ch->unit & 3) * 0x2000) + (ch->unit > 3 ? 0x30000 : 0x20000)
2610 
2611 struct ata_marvell_response {
2612     u_int16_t   tag;
2613     u_int8_t    edma_status;
2614     u_int8_t    dev_status;
2615     u_int32_t   timestamp;
2616 };
2617 
2618 struct ata_marvell_dma_prdentry {
2619     u_int32_t addrlo;
2620     u_int32_t count;
2621     u_int32_t addrhi;
2622     u_int32_t reserved;
2623 };
2624 
2625 int
2626 ata_marvell_ident(device_t dev)
2627 {
2628     struct ata_pci_controller *ctlr = device_get_softc(dev);
2629     struct ata_chip_id *idx;
2630     static struct ata_chip_id ids[] =
2631     {{ ATA_M88SX5040, 0, 4, MV50XX, ATA_SA150, "88SX5040" },
2632      { ATA_M88SX5041, 0, 4, MV50XX, ATA_SA150, "88SX5041" },
2633      { ATA_M88SX5080, 0, 8, MV50XX, ATA_SA150, "88SX5080" },
2634      { ATA_M88SX5081, 0, 8, MV50XX, ATA_SA150, "88SX5081" },
2635      { ATA_M88SX6041, 0, 4, MV60XX, ATA_SA300, "88SX6041" },
2636      { ATA_M88SX6081, 0, 8, MV60XX, ATA_SA300, "88SX6081" },
2637      { ATA_M88SX6101, 0, 1, MV61XX, ATA_UDMA6, "88SX6101" },
2638      { ATA_M88SX6145, 0, 2, MV61XX, ATA_UDMA6, "88SX6145" },
2639      { 0, 0, 0, 0, 0, 0}};
2640     char buffer[64];
2641 
2642     if (!(idx = ata_match_chip(dev, ids)))
2643 	return ENXIO;
2644 
2645     ksprintf(buffer, "Marvell %s %s controller",
2646 	    idx->text, ata_mode2str(idx->max_dma));
2647     device_set_desc_copy(dev, buffer);
2648     ctlr->chip = idx;
2649     switch (ctlr->chip->cfg2) {
2650     case MV50XX:
2651     case MV60XX:
2652 	ctlr->chipinit = ata_marvell_edma_chipinit;
2653 	break;
2654     case MV61XX:
2655 	ctlr->chipinit = ata_marvell_pata_chipinit;
2656 	break;
2657     }
2658     return 0;
2659 }
2660 
2661 static int
2662 ata_marvell_pata_chipinit(device_t dev)
2663 {
2664     struct ata_pci_controller *ctlr = device_get_softc(dev);
2665 
2666     if (ata_setup_interrupt(dev))
2667 	return ENXIO;
2668 
2669     ctlr->allocate = ata_marvell_pata_allocate;
2670     ctlr->setmode = ata_marvell_pata_setmode;
2671     ctlr->channels = ctlr->chip->cfg1;
2672     return 0;
2673 }
2674 
2675 static int
2676 ata_marvell_pata_allocate(device_t dev)
2677 {
2678     struct ata_channel *ch = device_get_softc(dev);
2679 
2680     /* setup the usual register normal pci style */
2681     if (ata_pci_allocate(dev))
2682 	return ENXIO;
2683 
2684     /* dont use 32 bit PIO transfers */
2685     ch->flags |= ATA_USE_16BIT;
2686 
2687     return 0;
2688 }
2689 
2690 static void
2691 ata_marvell_pata_setmode(device_t dev, int mode)
2692 {
2693     device_t gparent = GRANDPARENT(dev);
2694     struct ata_pci_controller *ctlr = device_get_softc(gparent);
2695     struct ata_device *atadev = device_get_softc(dev);
2696 
2697     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
2698     mode = ata_check_80pin(dev, mode);
2699     if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
2700 	atadev->mode = mode;
2701 }
2702 
2703 static int
2704 ata_marvell_edma_chipinit(device_t dev)
2705 {
2706     struct ata_pci_controller *ctlr = device_get_softc(dev);
2707 
2708     if (ata_setup_interrupt(dev))
2709 	return ENXIO;
2710 
2711     ctlr->r_type1 = SYS_RES_MEMORY;
2712     ctlr->r_rid1 = PCIR_BAR(0);
2713     if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
2714 						&ctlr->r_rid1, RF_ACTIVE))) {
2715 	ata_teardown_interrupt(dev);
2716 	return ENXIO;
2717     }
2718 
2719     /* mask all host controller interrupts */
2720     ATA_OUTL(ctlr->r_res1, 0x01d64, 0x00000000);
2721 
2722     /* mask all PCI interrupts */
2723     ATA_OUTL(ctlr->r_res1, 0x01d5c, 0x00000000);
2724 
2725     ctlr->allocate = ata_marvell_edma_allocate;
2726     ctlr->reset = ata_marvell_edma_reset;
2727     ctlr->dmainit = ata_marvell_edma_dmainit;
2728     ctlr->setmode = ata_sata_setmode;
2729     ctlr->channels = ctlr->chip->cfg1;
2730 
2731     /* clear host controller interrupts */
2732     ATA_OUTL(ctlr->r_res1, 0x20014, 0x00000000);
2733     if (ctlr->chip->cfg1 > 4)
2734 	ATA_OUTL(ctlr->r_res1, 0x30014, 0x00000000);
2735 
2736     /* clear PCI interrupts */
2737     ATA_OUTL(ctlr->r_res1, 0x01d58, 0x00000000);
2738 
2739     /* unmask PCI interrupts we want */
2740     ATA_OUTL(ctlr->r_res1, 0x01d5c, 0x007fffff);
2741 
2742     /* unmask host controller interrupts we want */
2743     ATA_OUTL(ctlr->r_res1, 0x01d64, 0x000000ff/*HC0*/ | 0x0001fe00/*HC1*/ |
2744 	     /*(1<<19) | (1<<20) | (1<<21) |*/(1<<22) | (1<<24) | (0x7f << 25));
2745 
2746     /* enable PCI interrupt */
2747     pci_write_config(dev, PCIR_COMMAND,
2748 		     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
2749     return 0;
2750 }
2751 
2752 static int
2753 ata_marvell_edma_allocate(device_t dev)
2754 {
2755     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2756     struct ata_channel *ch = device_get_softc(dev);
2757     u_int64_t work = ch->dma->work_bus;
2758     int i;
2759 
2760     /* clear work area */
2761     bzero(ch->dma->work, 1024+256);
2762 
2763     /* set legacy ATA resources */
2764     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
2765 	ch->r_io[i].res = ctlr->r_res1;
2766 	ch->r_io[i].offset = 0x02100 + (i << 2) + ATA_MV_EDMA_BASE(ch);
2767     }
2768     ch->r_io[ATA_CONTROL].res = ctlr->r_res1;
2769     ch->r_io[ATA_CONTROL].offset = 0x02120 + ATA_MV_EDMA_BASE(ch);
2770     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res1;
2771     ata_default_registers(dev);
2772 
2773     /* set SATA resources */
2774     switch (ctlr->chip->cfg2) {
2775     case MV50XX:
2776 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res1;
2777 	ch->r_io[ATA_SSTATUS].offset =  0x00100 + ATA_MV_HOST_BASE(ch);
2778 	ch->r_io[ATA_SERROR].res = ctlr->r_res1;
2779 	ch->r_io[ATA_SERROR].offset = 0x00104 + ATA_MV_HOST_BASE(ch);
2780 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res1;
2781 	ch->r_io[ATA_SCONTROL].offset = 0x00108 + ATA_MV_HOST_BASE(ch);
2782 	break;
2783     case MV60XX:
2784 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res1;
2785 	ch->r_io[ATA_SSTATUS].offset =  0x02300 + ATA_MV_EDMA_BASE(ch);
2786 	ch->r_io[ATA_SERROR].res = ctlr->r_res1;
2787 	ch->r_io[ATA_SERROR].offset = 0x02304 + ATA_MV_EDMA_BASE(ch);
2788 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res1;
2789 	ch->r_io[ATA_SCONTROL].offset = 0x02308 + ATA_MV_EDMA_BASE(ch);
2790 	ch->r_io[ATA_SACTIVE].res = ctlr->r_res1;
2791 	ch->r_io[ATA_SACTIVE].offset = 0x02350 + ATA_MV_EDMA_BASE(ch);
2792 	break;
2793     }
2794 
2795     ch->flags |= ATA_NO_SLAVE;
2796     ch->flags |= ATA_USE_16BIT; /* XXX SOS needed ? */
2797     ata_generic_hw(dev);
2798     ch->hw.begin_transaction = ata_marvell_edma_begin_transaction;
2799     ch->hw.end_transaction = ata_marvell_edma_end_transaction;
2800     ch->hw.status = ata_marvell_edma_status;
2801 
2802     /* disable the EDMA machinery */
2803     ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000002);
2804     DELAY(100000);       /* SOS should poll for disabled */
2805 
2806     /* set configuration to non-queued 128b read transfers stop on error */
2807     ATA_OUTL(ctlr->r_res1, 0x02000 + ATA_MV_EDMA_BASE(ch), (1<<11) | (1<<13));
2808 
2809     /* request queue base high */
2810     ATA_OUTL(ctlr->r_res1, 0x02010 + ATA_MV_EDMA_BASE(ch), work >> 32);
2811 
2812     /* request queue in ptr */
2813     ATA_OUTL(ctlr->r_res1, 0x02014 + ATA_MV_EDMA_BASE(ch), work & 0xffffffff);
2814 
2815     /* request queue out ptr */
2816     ATA_OUTL(ctlr->r_res1, 0x02018 + ATA_MV_EDMA_BASE(ch), 0x0);
2817 
2818     /* response queue base high */
2819     work += 1024;
2820     ATA_OUTL(ctlr->r_res1, 0x0201c + ATA_MV_EDMA_BASE(ch), work >> 32);
2821 
2822     /* response queue in ptr */
2823     ATA_OUTL(ctlr->r_res1, 0x02020 + ATA_MV_EDMA_BASE(ch), 0x0);
2824 
2825     /* response queue out ptr */
2826     ATA_OUTL(ctlr->r_res1, 0x02024 + ATA_MV_EDMA_BASE(ch), work & 0xffffffff);
2827 
2828     /* clear SATA error register */
2829     ATA_IDX_OUTL(ch, ATA_SERROR, ATA_IDX_INL(ch, ATA_SERROR));
2830 
2831     /* clear any outstanding error interrupts */
2832     ATA_OUTL(ctlr->r_res1, 0x02008 + ATA_MV_EDMA_BASE(ch), 0x0);
2833 
2834     /* unmask all error interrupts */
2835     ATA_OUTL(ctlr->r_res1, 0x0200c + ATA_MV_EDMA_BASE(ch), ~0x0);
2836 
2837     /* enable EDMA machinery */
2838     ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000001);
2839     return 0;
2840 }
2841 
2842 static int
2843 ata_marvell_edma_status(device_t dev)
2844 {
2845     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2846     struct ata_channel *ch = device_get_softc(dev);
2847     u_int32_t cause = ATA_INL(ctlr->r_res1, 0x01d60);
2848     int shift = (ch->unit << 1) + (ch->unit > 3);
2849 
2850     if (cause & (1 << shift)) {
2851 
2852 	/* clear interrupt(s) */
2853 	ATA_OUTL(ctlr->r_res1, 0x02008 + ATA_MV_EDMA_BASE(ch), 0x0);
2854 
2855 	/* do we have any PHY events ? */
2856 	ata_sata_phy_check_events(dev);
2857     }
2858 
2859     /* do we have any device action ? */
2860     return (cause & (2 << shift));
2861 }
2862 
2863 /* must be called with ATA channel locked and state_mtx held */
2864 static int
2865 ata_marvell_edma_begin_transaction(struct ata_request *request)
2866 {
2867     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
2868     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
2869     u_int32_t req_in;
2870     u_int8_t *bytep;
2871     u_int16_t *wordp;
2872     u_int32_t *quadp;
2873     int i, tag = 0x07;
2874     int dummy, error, slot;
2875 
2876     /* only DMA R/W goes through the EMDA machine */
2877     if (request->u.ata.command != ATA_READ_DMA &&
2878 	request->u.ata.command != ATA_WRITE_DMA) {
2879 
2880 	/* disable the EDMA machinery */
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), 0x00000002);
2883 	return ata_begin_transaction(request);
2884     }
2885 
2886     /* check for 48 bit access and convert if needed */
2887     ata_modify_if_48bit(request);
2888 
2889     /* check sanity, setup SG list and DMA engine */
2890     if ((error = ch->dma->load(ch->dev, request->data, request->bytecount,
2891 			       request->flags & ATA_R_READ, ch->dma->sg,
2892 			       &dummy))) {
2893 	device_printf(request->dev, "setting up DMA failed\n");
2894 	request->result = error;
2895 	return ATA_OP_FINISHED;
2896     }
2897 
2898     /* get next free request queue slot */
2899     req_in = ATA_INL(ctlr->r_res1, 0x02014 + ATA_MV_EDMA_BASE(ch));
2900     slot = (((req_in & ~0xfffffc00) >> 5) + 0) & 0x1f;
2901     bytep = (u_int8_t *)(ch->dma->work);
2902     bytep += (slot << 5);
2903     wordp = (u_int16_t *)bytep;
2904     quadp = (u_int32_t *)bytep;
2905 
2906     /* fill in this request */
2907     quadp[0] = (long)ch->dma->sg_bus & 0xffffffff;
2908     quadp[1] = (u_int64_t)ch->dma->sg_bus >> 32;
2909     wordp[4] = (request->flags & ATA_R_READ ? 0x01 : 0x00) | (tag<<1);
2910 
2911     i = 10;
2912     bytep[i++] = (request->u.ata.count >> 8) & 0xff;
2913     bytep[i++] = 0x10 | ATA_COUNT;
2914     bytep[i++] = request->u.ata.count & 0xff;
2915     bytep[i++] = 0x10 | ATA_COUNT;
2916 
2917     bytep[i++] = (request->u.ata.lba >> 24) & 0xff;
2918     bytep[i++] = 0x10 | ATA_SECTOR;
2919     bytep[i++] = request->u.ata.lba & 0xff;
2920     bytep[i++] = 0x10 | ATA_SECTOR;
2921 
2922     bytep[i++] = (request->u.ata.lba >> 32) & 0xff;
2923     bytep[i++] = 0x10 | ATA_CYL_LSB;
2924     bytep[i++] = (request->u.ata.lba >> 8) & 0xff;
2925     bytep[i++] = 0x10 | ATA_CYL_LSB;
2926 
2927     bytep[i++] = (request->u.ata.lba >> 40) & 0xff;
2928     bytep[i++] = 0x10 | ATA_CYL_MSB;
2929     bytep[i++] = (request->u.ata.lba >> 16) & 0xff;
2930     bytep[i++] = 0x10 | ATA_CYL_MSB;
2931 
2932     bytep[i++] = ATA_D_LBA | ATA_D_IBM | ((request->u.ata.lba >> 24) & 0xf);
2933     bytep[i++] = 0x10 | ATA_DRIVE;
2934 
2935     bytep[i++] = request->u.ata.command;
2936     bytep[i++] = 0x90 | ATA_COMMAND;
2937 
2938     /* enable EDMA machinery if needed */
2939     if (!(ATA_INL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch)) & 0x00000001)) {
2940 	ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000001);
2941 	while (!(ATA_INL(ctlr->r_res1,
2942 			 0x02028 + ATA_MV_EDMA_BASE(ch)) & 0x00000001))
2943 	    DELAY(10);
2944     }
2945 
2946     /* tell EDMA it has a new request */
2947     slot = (((req_in & ~0xfffffc00) >> 5) + 1) & 0x1f;
2948     req_in &= 0xfffffc00;
2949     req_in += (slot << 5);
2950     ATA_OUTL(ctlr->r_res1, 0x02014 + ATA_MV_EDMA_BASE(ch), req_in);
2951 
2952     return ATA_OP_CONTINUES;
2953 }
2954 
2955 /* must be called with ATA channel locked and state_mtx held */
2956 static int
2957 ata_marvell_edma_end_transaction(struct ata_request *request)
2958 {
2959     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
2960     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
2961     int offset = (ch->unit > 3 ? 0x30014 : 0x20014);
2962     u_int32_t icr = ATA_INL(ctlr->r_res1, offset);
2963     int res;
2964 
2965     /* EDMA interrupt */
2966     if ((icr & (0x0001 << (ch->unit & 3)))) {
2967 	struct ata_marvell_response *response;
2968 	u_int32_t rsp_in, rsp_out;
2969 	int slot;
2970 
2971 	/* stop timeout */
2972 	callout_stop(&request->callout);
2973 
2974 	/* get response ptr's */
2975 	rsp_in = ATA_INL(ctlr->r_res1, 0x02020 + ATA_MV_EDMA_BASE(ch));
2976 	rsp_out = ATA_INL(ctlr->r_res1, 0x02024 + ATA_MV_EDMA_BASE(ch));
2977 	slot = (((rsp_in & ~0xffffff00) >> 3)) & 0x1f;
2978 	rsp_out &= 0xffffff00;
2979 	rsp_out += (slot << 3);
2980 	response = (struct ata_marvell_response *)
2981 		   (ch->dma->work + 1024 + (slot << 3));
2982 
2983 	/* record status for this request */
2984 	request->status = response->dev_status;
2985 	request->error = 0;
2986 
2987 	/* ack response */
2988 	ATA_OUTL(ctlr->r_res1, 0x02024 + ATA_MV_EDMA_BASE(ch), rsp_out);
2989 
2990 	/* update progress */
2991 	if (!(request->status & ATA_S_ERROR) &&
2992 	    !(request->flags & ATA_R_TIMEOUT))
2993 	    request->donecount = request->bytecount;
2994 
2995 	/* unload SG list */
2996 	ch->dma->unload(ch->dev);
2997 
2998 	res = ATA_OP_FINISHED;
2999     }
3000 
3001     /* legacy ATA interrupt */
3002     else {
3003 	res = ata_end_transaction(request);
3004     }
3005 
3006     /* ack interrupt */
3007     ATA_OUTL(ctlr->r_res1, offset, ~(icr & (0x0101 << (ch->unit & 3))));
3008     return res;
3009 }
3010 
3011 static void
3012 ata_marvell_edma_reset(device_t dev)
3013 {
3014     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3015     struct ata_channel *ch = device_get_softc(dev);
3016 
3017     /* disable the EDMA machinery */
3018     ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000002);
3019     while ((ATA_INL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch)) & 0x00000001))
3020 	DELAY(10);
3021 
3022     /* clear SATA error register */
3023     ATA_IDX_OUTL(ch, ATA_SERROR, ATA_IDX_INL(ch, ATA_SERROR));
3024 
3025     /* clear any outstanding error interrupts */
3026     ATA_OUTL(ctlr->r_res1, 0x02008 + ATA_MV_EDMA_BASE(ch), 0x0);
3027 
3028     /* unmask all error interrupts */
3029     ATA_OUTL(ctlr->r_res1, 0x0200c + ATA_MV_EDMA_BASE(ch), ~0x0);
3030 
3031     /* enable channel and test for devices */
3032     if (ata_sata_phy_reset(dev))
3033 	ata_generic_reset(dev);
3034 
3035     /* enable EDMA machinery */
3036     ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000001);
3037 }
3038 
3039 static void
3040 ata_marvell_edma_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs,
3041 			   int error)
3042 {
3043     struct ata_dmasetprd_args *args = xsc;
3044     struct ata_marvell_dma_prdentry *prd = args->dmatab;
3045     int i;
3046 
3047     if ((args->error = error))
3048 	return;
3049 
3050     for (i = 0; i < nsegs; i++) {
3051 	prd[i].addrlo = htole32(segs[i].ds_addr);
3052 	prd[i].count = htole32(segs[i].ds_len);
3053 	prd[i].addrhi = htole32((u_int64_t)segs[i].ds_addr >> 32);
3054     }
3055     prd[i - 1].count |= htole32(ATA_DMA_EOT);
3056 }
3057 
3058 static void
3059 ata_marvell_edma_dmainit(device_t dev)
3060 {
3061     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3062     struct ata_channel *ch = device_get_softc(dev);
3063 
3064     ata_dmainit(dev);
3065     if (ch->dma) {
3066 	/* note start and stop are not used here */
3067 	ch->dma->setprd = ata_marvell_edma_dmasetprd;
3068 
3069 	if (ATA_INL(ctlr->r_res1, 0x00d00) & 0x00000004)
3070 	    ch->dma->max_address = BUS_SPACE_MAXADDR;
3071 
3072 	/* chip does not reliably do 64K DMA transfers */
3073 	ch->dma->max_iosize = 126 * DEV_BSIZE;
3074     }
3075 }
3076 
3077 
3078 /*
3079  * National chipset support functions
3080  */
3081 int
3082 ata_national_ident(device_t dev)
3083 {
3084     struct ata_pci_controller *ctlr = device_get_softc(dev);
3085 
3086     /* this chip is a clone of the Cyrix chip, bugs and all */
3087     if (pci_get_devid(dev) == ATA_SC1100) {
3088 	device_set_desc(dev, "National Geode SC1100 ATA33 controller");
3089 	ctlr->chipinit = ata_national_chipinit;
3090 	return 0;
3091     }
3092     return ENXIO;
3093 }
3094 
3095 static int
3096 ata_national_chipinit(device_t dev)
3097 {
3098     struct ata_pci_controller *ctlr = device_get_softc(dev);
3099 
3100     if (ata_setup_interrupt(dev))
3101 	return ENXIO;
3102 
3103     ctlr->setmode = ata_national_setmode;
3104     return 0;
3105 }
3106 
3107 static void
3108 ata_national_setmode(device_t dev, int mode)
3109 {
3110     device_t gparent = GRANDPARENT(dev);
3111     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
3112     struct ata_device *atadev = device_get_softc(dev);
3113     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
3114     u_int32_t piotiming[] =
3115 	{ 0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010,
3116 	  0x00803020, 0x20102010, 0x00100010,
3117 	  0x00100010, 0x00100010, 0x00100010 };
3118     u_int32_t dmatiming[] = { 0x80077771, 0x80012121, 0x80002020 };
3119     u_int32_t udmatiming[] = { 0x80921250, 0x80911140, 0x80911030 };
3120     int error;
3121 
3122     ch->dma->alignment = 16;
3123     ch->dma->max_iosize = 126 * DEV_BSIZE;
3124 
3125     mode = ata_limit_mode(dev, mode, ATA_UDMA2);
3126 
3127     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
3128 
3129     if (bootverbose)
3130 	device_printf(dev, "%s setting %s on National chip\n",
3131 		      (error) ? "failed" : "success", ata_mode2str(mode));
3132     if (!error) {
3133 	if (mode >= ATA_UDMA0) {
3134 	    pci_write_config(gparent, 0x44 + (devno << 3),
3135 			     udmatiming[mode & ATA_MODE_MASK], 4);
3136 	}
3137 	else if (mode >= ATA_WDMA0) {
3138 	    pci_write_config(gparent, 0x44 + (devno << 3),
3139 			     dmatiming[mode & ATA_MODE_MASK], 4);
3140 	}
3141 	else {
3142 	    pci_write_config(gparent, 0x44 + (devno << 3),
3143 			     pci_read_config(gparent, 0x44 + (devno << 3), 4) |
3144 			     0x80000000, 4);
3145 	}
3146 	pci_write_config(gparent, 0x40 + (devno << 3),
3147 			 piotiming[ata_mode2idx(mode)], 4);
3148 	atadev->mode = mode;
3149     }
3150 }
3151 
3152 /*
3153  * NetCell chipset support functions
3154  */
3155 int
3156 ata_netcell_ident(device_t dev)
3157 {
3158     struct ata_pci_controller *ctlr = device_get_softc(dev);
3159 
3160     if (pci_get_devid(dev) == ATA_NETCELL_SR) {
3161 	device_set_desc(dev, "Netcell SyncRAID SR3000/5000 RAID Controller");
3162 	ctlr->chipinit = ata_netcell_chipinit;
3163 	return 0;
3164     }
3165     return ENXIO;
3166 }
3167 
3168 static int
3169 ata_netcell_chipinit(device_t dev)
3170 {
3171     struct ata_pci_controller *ctlr = device_get_softc(dev);
3172 
3173     if (ata_generic_chipinit(dev))
3174 	return ENXIO;
3175 
3176     ctlr->allocate = ata_netcell_allocate;
3177     return 0;
3178 }
3179 
3180 static int
3181 ata_netcell_allocate(device_t dev)
3182 {
3183     struct ata_channel *ch = device_get_softc(dev);
3184 
3185     /* setup the usual register normal pci style */
3186     if (ata_pci_allocate(dev))
3187 	return ENXIO;
3188 
3189     /* the NetCell only supports 16 bit PIO transfers */
3190     ch->flags |= ATA_USE_16BIT;
3191 
3192     return 0;
3193 }
3194 
3195 
3196 /*
3197  * nVidia chipset support functions
3198  */
3199 int
3200 ata_nvidia_ident(device_t dev)
3201 {
3202     struct ata_pci_controller *ctlr = device_get_softc(dev);
3203     struct ata_chip_id *idx;
3204     static struct ata_chip_id ids[] =
3205     {{ ATA_NFORCE1,         0, AMDNVIDIA, NVIDIA,  ATA_UDMA5, "nForce" },
3206      { ATA_NFORCE2,         0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce2" },
3207      { ATA_NFORCE2_PRO,     0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce2 Pro" },
3208      { ATA_NFORCE2_PRO_S1,  0, 0,         0,       ATA_SA150, "nForce2 Pro" },
3209      { ATA_NFORCE3,         0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce3" },
3210      { ATA_NFORCE3_PRO,     0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce3 Pro" },
3211      { ATA_NFORCE3_PRO_S1,  0, 0,         0,       ATA_SA150, "nForce3 Pro" },
3212      { ATA_NFORCE3_PRO_S2,  0, 0,         0,       ATA_SA150, "nForce3 Pro" },
3213      { ATA_NFORCE_MCP04,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP" },
3214      { ATA_NFORCE_MCP04_S1, 0, 0,         NV4,     ATA_SA150, "nForce MCP" },
3215      { ATA_NFORCE_MCP04_S2, 0, 0,         NV4,     ATA_SA150, "nForce MCP" },
3216      { ATA_NFORCE_CK804,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce CK804" },
3217      { ATA_NFORCE_CK804_S1, 0, 0,         NV4,     ATA_SA300, "nForce CK804" },
3218      { ATA_NFORCE_CK804_S2, 0, 0,         NV4,     ATA_SA300, "nForce CK804" },
3219      { ATA_NFORCE_MCP51,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP51" },
3220      { ATA_NFORCE_MCP51_S1, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP51" },
3221      { ATA_NFORCE_MCP51_S2, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP51" },
3222      { ATA_NFORCE_MCP55,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP55" },
3223      { ATA_NFORCE_MCP55_S1, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP55" },
3224      { ATA_NFORCE_MCP55_S2, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP55" },
3225      { ATA_NFORCE_MCP61,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP61" },
3226      { ATA_NFORCE_MCP61_S1, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP61" },
3227      { ATA_NFORCE_MCP61_S2, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP61" },
3228      { ATA_NFORCE_MCP61_S3, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP61" },
3229      { ATA_NFORCE_MCP65,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP65" },
3230      { ATA_NFORCE_MCP67,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP67" },
3231      { ATA_NFORCE_MCP67_S2, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP67" },
3232      { ATA_NFORCE_MCP73,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP73" },
3233      { ATA_NFORCE_MCP77,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP77" },
3234      { 0, 0, 0, 0, 0, 0}} ;
3235     char buffer[64] ;
3236 
3237     if (!(idx = ata_match_chip(dev, ids)))
3238 	return ENXIO;
3239 
3240     ksprintf(buffer, "nVidia %s %s controller",
3241 	    idx->text, ata_mode2str(idx->max_dma));
3242     device_set_desc_copy(dev, buffer);
3243     ctlr->chip = idx;
3244     ctlr->chipinit = ata_nvidia_chipinit;
3245     return 0;
3246 }
3247 
3248 static int
3249 ata_nvidia_chipinit(device_t dev)
3250 {
3251     struct ata_pci_controller *ctlr = device_get_softc(dev);
3252 
3253     if (ata_setup_interrupt(dev))
3254 	return ENXIO;
3255 
3256     if (ctlr->chip->max_dma >= ATA_SA150) {
3257 	if (pci_read_config(dev, PCIR_BAR(5), 1) & 1)
3258 	    ctlr->r_type2 = SYS_RES_IOPORT;
3259 	else
3260 	    ctlr->r_type2 = SYS_RES_MEMORY;
3261 	ctlr->r_rid2 = PCIR_BAR(5);
3262 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
3263 						   &ctlr->r_rid2, RF_ACTIVE))) {
3264 	    int offset = ctlr->chip->cfg2 & NV4 ? 0x0440 : 0x0010;
3265 
3266 	    ctlr->allocate = ata_nvidia_allocate;
3267 	    ctlr->reset = ata_nvidia_reset;
3268 
3269 	    /* enable control access */
3270 	    pci_write_config(dev, 0x50, pci_read_config(dev, 0x50, 1) | 0x04,1);
3271 
3272 	    if (ctlr->chip->cfg2 & NVQ) {
3273 		/* clear interrupt status */
3274 		ATA_OUTL(ctlr->r_res2, offset, 0x00ff00ff);
3275 
3276 		/* enable device and PHY state change interrupts */
3277 		ATA_OUTL(ctlr->r_res2, offset + 4, 0x000d000d);
3278 
3279 		/* disable NCQ support */
3280 		ATA_OUTL(ctlr->r_res2, 0x0400,
3281 			 ATA_INL(ctlr->r_res2, 0x0400) & 0xfffffff9);
3282 	    }
3283 	    else {
3284 		/* clear interrupt status */
3285 		ATA_OUTB(ctlr->r_res2, offset, 0xff);
3286 
3287 		/* enable device and PHY state change interrupts */
3288 		ATA_OUTB(ctlr->r_res2, offset + 1, 0xdd);
3289 	    }
3290 
3291 	    /* enable PCI interrupt */
3292 	    pci_write_config(dev, PCIR_COMMAND,
3293 			     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400,2);
3294 
3295 	}
3296 	ctlr->setmode = ata_sata_setmode;
3297     }
3298     else {
3299 	/* disable prefetch, postwrite */
3300 	pci_write_config(dev, 0x51, pci_read_config(dev, 0x51, 1) & 0x0f, 1);
3301 	ctlr->setmode = ata_via_family_setmode;
3302     }
3303     return 0;
3304 }
3305 
3306 static int
3307 ata_nvidia_allocate(device_t dev)
3308 {
3309     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3310     struct ata_channel *ch = device_get_softc(dev);
3311 
3312     /* setup the usual register normal pci style */
3313     if (ata_pci_allocate(dev))
3314 	return ENXIO;
3315 
3316     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
3317     ch->r_io[ATA_SSTATUS].offset = (ch->unit << 6);
3318     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
3319     ch->r_io[ATA_SERROR].offset = 0x04 + (ch->unit << 6);
3320     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
3321     ch->r_io[ATA_SCONTROL].offset = 0x08 + (ch->unit << 6);
3322 
3323     ch->hw.status = ata_nvidia_status;
3324     ch->flags |= ATA_NO_SLAVE;
3325 
3326     return 0;
3327 }
3328 
3329 static int
3330 ata_nvidia_status(device_t dev)
3331 {
3332     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3333     struct ata_channel *ch = device_get_softc(dev);
3334     int offset = ctlr->chip->cfg2 & NV4 ? 0x0440 : 0x0010;
3335     int shift = ch->unit << (ctlr->chip->cfg2 & NVQ ? 4 : 2);
3336     u_int32_t istatus;
3337 
3338     /* get interrupt status */
3339     if (ctlr->chip->cfg2 & NVQ)
3340       istatus = ATA_INL(ctlr->r_res2, offset);
3341     else
3342       istatus = ATA_INB(ctlr->r_res2, offset);
3343 
3344     /* do we have any PHY events ? */
3345     if (istatus & (0x0c << shift))
3346 	ata_sata_phy_check_events(dev);
3347 
3348     /* clear interrupt(s) */
3349     if (ctlr->chip->cfg2 & NVQ)
3350 	ATA_OUTL(ctlr->r_res2, offset, (0x0f << shift) | 0x00f000f0);
3351     else
3352 	ATA_OUTB(ctlr->r_res2, offset, (0x0f << shift));
3353 
3354     /* do we have any device action ? */
3355     return (istatus & (0x01 << shift));
3356 }
3357 
3358 static void
3359 ata_nvidia_reset(device_t dev)
3360 {
3361     if (ata_sata_phy_reset(dev))
3362 	ata_generic_reset(dev);
3363 }
3364 
3365 
3366 /*
3367  * Promise chipset support functions
3368  */
3369 #define ATA_PDC_APKT_OFFSET     0x00000010
3370 #define ATA_PDC_HPKT_OFFSET     0x00000040
3371 #define ATA_PDC_ASG_OFFSET      0x00000080
3372 #define ATA_PDC_LSG_OFFSET      0x000000c0
3373 #define ATA_PDC_HSG_OFFSET      0x00000100
3374 #define ATA_PDC_CHN_OFFSET      0x00000400
3375 #define ATA_PDC_BUF_BASE        0x00400000
3376 #define ATA_PDC_BUF_OFFSET      0x00100000
3377 #define ATA_PDC_MAX_HPKT        8
3378 #define ATA_PDC_WRITE_REG       0x00
3379 #define ATA_PDC_WRITE_CTL       0x0e
3380 #define ATA_PDC_WRITE_END       0x08
3381 #define ATA_PDC_WAIT_NBUSY      0x10
3382 #define ATA_PDC_WAIT_READY      0x18
3383 #define ATA_PDC_1B              0x20
3384 #define ATA_PDC_2B              0x40
3385 
3386 struct host_packet {
3387     u_int32_t                   addr;
3388     TAILQ_ENTRY(host_packet)    chain;
3389 };
3390 
3391 struct ata_promise_sx4 {
3392     struct spinlock             mtx;
3393     TAILQ_HEAD(, host_packet)   queue;
3394     int                         busy;
3395 };
3396 
3397 int
3398 ata_promise_ident(device_t dev)
3399 {
3400     struct ata_pci_controller *ctlr = device_get_softc(dev);
3401     struct ata_chip_id *idx;
3402     static struct ata_chip_id ids[] =
3403     {{ ATA_PDC20246,  0, PROLD, 0x00,    ATA_UDMA2, "PDC20246" },
3404      { ATA_PDC20262,  0, PRNEW, 0x00,    ATA_UDMA4, "PDC20262" },
3405      { ATA_PDC20263,  0, PRNEW, 0x00,    ATA_UDMA4, "PDC20263" },
3406      { ATA_PDC20265,  0, PRNEW, 0x00,    ATA_UDMA5, "PDC20265" },
3407      { ATA_PDC20267,  0, PRNEW, 0x00,    ATA_UDMA5, "PDC20267" },
3408      { ATA_PDC20268,  0, PRTX,  PRTX4,   ATA_UDMA5, "PDC20268" },
3409      { ATA_PDC20269,  0, PRTX,  0x00,    ATA_UDMA6, "PDC20269" },
3410      { ATA_PDC20270,  0, PRTX,  PRTX4,   ATA_UDMA5, "PDC20270" },
3411      { ATA_PDC20271,  0, PRTX,  0x00,    ATA_UDMA6, "PDC20271" },
3412      { ATA_PDC20275,  0, PRTX,  0x00,    ATA_UDMA6, "PDC20275" },
3413      { ATA_PDC20276,  0, PRTX,  PRSX6K,  ATA_UDMA6, "PDC20276" },
3414      { ATA_PDC20277,  0, PRTX,  0x00,    ATA_UDMA6, "PDC20277" },
3415      { ATA_PDC20318,  0, PRMIO, PRSATA,  ATA_SA150, "PDC20318" },
3416      { ATA_PDC20319,  0, PRMIO, PRSATA,  ATA_SA150, "PDC20319" },
3417      { ATA_PDC20371,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20371" },
3418      { ATA_PDC20375,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20375" },
3419      { ATA_PDC20376,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20376" },
3420      { ATA_PDC20377,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20377" },
3421      { ATA_PDC20378,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20378" },
3422      { ATA_PDC20379,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20379" },
3423      { ATA_PDC20571,  0, PRMIO, PRCMBO2, ATA_SA150, "PDC20571" },
3424      { ATA_PDC20575,  0, PRMIO, PRCMBO2, ATA_SA150, "PDC20575" },
3425      { ATA_PDC20579,  0, PRMIO, PRCMBO2, ATA_SA150, "PDC20579" },
3426      { ATA_PDC20771,  0, PRMIO, PRCMBO2, ATA_SA300, "PDC20771" },
3427      { ATA_PDC40775,  0, PRMIO, PRCMBO2, ATA_SA300, "PDC40775" },
3428      { ATA_PDC20617,  0, PRMIO, PRPATA,  ATA_UDMA6, "PDC20617" },
3429      { ATA_PDC20618,  0, PRMIO, PRPATA,  ATA_UDMA6, "PDC20618" },
3430      { ATA_PDC20619,  0, PRMIO, PRPATA,  ATA_UDMA6, "PDC20619" },
3431      { ATA_PDC20620,  0, PRMIO, PRPATA,  ATA_UDMA6, "PDC20620" },
3432      { ATA_PDC20621,  0, PRMIO, PRSX4X,  ATA_UDMA5, "PDC20621" },
3433      { ATA_PDC20622,  0, PRMIO, PRSX4X,  ATA_SA150, "PDC20622" },
3434      { ATA_PDC40518,  0, PRMIO, PRSATA2, ATA_SA150, "PDC40518" },
3435      { ATA_PDC40519,  0, PRMIO, PRSATA2, ATA_SA150, "PDC40519" },
3436      { ATA_PDC40718,  0, PRMIO, PRSATA2, ATA_SA300, "PDC40718" },
3437      { ATA_PDC40719,  0, PRMIO, PRSATA2, ATA_SA300, "PDC40719" },
3438      { ATA_PDC40779,  0, PRMIO, PRSATA2, ATA_SA300, "PDC40779" },
3439      { 0, 0, 0, 0, 0, 0}};
3440     char buffer[64];
3441     uintptr_t devid = 0;
3442 
3443     if (!(idx = ata_match_chip(dev, ids)))
3444 	return ENXIO;
3445 
3446     /* if we are on a SuperTrak SX6000 dont attach */
3447     if ((idx->cfg2 & PRSX6K) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
3448 	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
3449 		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
3450 	devid == ATA_I960RM)
3451 	return ENXIO;
3452 
3453     strcpy(buffer, "Promise ");
3454     strcat(buffer, idx->text);
3455 
3456     /* if we are on a FastTrak TX4, adjust the interrupt resource */
3457     if ((idx->cfg2 & PRTX4) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
3458 	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
3459 		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
3460 	((devid == ATA_DEC_21150) || (devid == ATA_DEC_21150_1))) {
3461 	static long start = 0, end = 0;
3462 
3463 	if (pci_get_slot(dev) == 1) {
3464 	    bus_get_resource(dev, SYS_RES_IRQ, 0, &start, &end);
3465 	    strcat(buffer, " (channel 0+1)");
3466 	}
3467 	else if (pci_get_slot(dev) == 2 && start && end) {
3468 	    bus_set_resource(dev, SYS_RES_IRQ, 0, start, end,
3469 	        machintr_legacy_intr_cpuid(start));
3470 	    strcat(buffer, " (channel 2+3)");
3471 	}
3472 	else {
3473 	    start = end = 0;
3474 	}
3475     }
3476     ksprintf(buffer, "%s %s controller", buffer, ata_mode2str(idx->max_dma));
3477     device_set_desc_copy(dev, buffer);
3478     ctlr->chip = idx;
3479     ctlr->chipinit = ata_promise_chipinit;
3480     return 0;
3481 }
3482 
3483 static int
3484 ata_promise_chipinit(device_t dev)
3485 {
3486     struct ata_pci_controller *ctlr = device_get_softc(dev);
3487     int fake_reg, stat_reg;
3488 
3489     if (ata_setup_interrupt(dev))
3490 	return ENXIO;
3491 
3492     switch  (ctlr->chip->cfg1) {
3493     case PRNEW:
3494 	/* setup clocks */
3495 	ATA_OUTB(ctlr->r_res1, 0x11, ATA_INB(ctlr->r_res1, 0x11) | 0x0a);
3496 
3497 	ctlr->dmainit = ata_promise_dmainit;
3498 	/* FALLTHROUGH */
3499 
3500     case PROLD:
3501 	/* enable burst mode */
3502 	ATA_OUTB(ctlr->r_res1, 0x1f, ATA_INB(ctlr->r_res1, 0x1f) | 0x01);
3503 	ctlr->allocate = ata_promise_allocate;
3504 	ctlr->setmode = ata_promise_setmode;
3505 	return 0;
3506 
3507     case PRTX:
3508 	ctlr->allocate = ata_promise_tx2_allocate;
3509 	ctlr->setmode = ata_promise_setmode;
3510 	return 0;
3511 
3512     case PRMIO:
3513 	ctlr->r_type1 = SYS_RES_MEMORY;
3514 	ctlr->r_rid1 = PCIR_BAR(4);
3515 	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
3516 						    &ctlr->r_rid1, RF_ACTIVE)))
3517 	    goto failnfree;
3518 
3519 	ctlr->r_type2 = SYS_RES_MEMORY;
3520 	ctlr->r_rid2 = PCIR_BAR(3);
3521 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
3522 						    &ctlr->r_rid2, RF_ACTIVE)))
3523 	    goto failnfree;
3524 
3525 	if (ctlr->chip->cfg2 == PRSX4X) {
3526 	    struct ata_promise_sx4 *hpkt;
3527 	    u_int32_t dimm = ATA_INL(ctlr->r_res2, 0x000c0080);
3528 
3529 	    if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
3530 		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS,
3531 			       ata_promise_sx4_intr, ctlr, &ctlr->handle, NULL)) {
3532 		device_printf(dev, "unable to setup interrupt\n");
3533 		goto failnfree;
3534 	    }
3535 
3536 	    /* print info about cache memory */
3537 	    device_printf(dev, "DIMM size %dMB @ 0x%08x%s\n",
3538 			  (((dimm >> 16) & 0xff)-((dimm >> 24) & 0xff)+1) << 4,
3539 			  ((dimm >> 24) & 0xff),
3540 			  ATA_INL(ctlr->r_res2, 0x000c0088) & (1<<16) ?
3541 			  " ECC enabled" : "" );
3542 
3543 	    /* adjust cache memory parameters */
3544 	    ATA_OUTL(ctlr->r_res2, 0x000c000c,
3545 		     (ATA_INL(ctlr->r_res2, 0x000c000c) & 0xffff0000));
3546 
3547 	    /* setup host packet controls */
3548 	    hpkt = kmalloc(sizeof(struct ata_promise_sx4),
3549 			  M_TEMP, M_INTWAIT | M_ZERO);
3550 	    spin_init(&hpkt->mtx, "chipinit");
3551 	    TAILQ_INIT(&hpkt->queue);
3552 	    hpkt->busy = 0;
3553 	    device_set_ivars(dev, hpkt);
3554 	    ctlr->allocate = ata_promise_mio_allocate;
3555 	    ctlr->reset = ata_promise_mio_reset;
3556 	    ctlr->dmainit = ata_promise_mio_dmainit;
3557 	    ctlr->setmode = ata_promise_setmode;
3558 	    ctlr->channels = 4;
3559 	    return 0;
3560 	}
3561 
3562 	/* mio type controllers need an interrupt intercept */
3563 	if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
3564 		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS,
3565 			       ata_promise_mio_intr, ctlr, &ctlr->handle, NULL)) {
3566 		device_printf(dev, "unable to setup interrupt\n");
3567 		goto failnfree;
3568 	}
3569 
3570 	switch (ctlr->chip->cfg2) {
3571 	case PRPATA:
3572 	    ctlr->channels = ((ATA_INL(ctlr->r_res2, 0x48) & 0x01) > 0) +
3573 			     ((ATA_INL(ctlr->r_res2, 0x48) & 0x02) > 0) + 2;
3574 	    goto sata150;
3575 	case PRCMBO:
3576 	    ctlr->channels = 3;
3577 	    goto sata150;
3578 	case PRSATA:
3579 	    ctlr->channels = 4;
3580 sata150:
3581 	    fake_reg = 0x60;
3582 	    stat_reg = 0x6c;
3583 	    break;
3584 
3585 	case PRCMBO2:
3586 	    ctlr->channels = 3;
3587 	    goto sataii;
3588 	case PRSATA2:
3589 	default:
3590 	    ctlr->channels = 4;
3591 sataii:
3592 	    fake_reg = 0x54;
3593 	    stat_reg = 0x60;
3594 	    break;
3595 	}
3596 
3597 	/* prime fake interrupt register */
3598 	ATA_OUTL(ctlr->r_res2, fake_reg, 0xffffffff);
3599 
3600 	/* clear SATA status */
3601 	ATA_OUTL(ctlr->r_res2, stat_reg, 0x000000ff);
3602 
3603 	ctlr->allocate = ata_promise_mio_allocate;
3604 	ctlr->reset = ata_promise_mio_reset;
3605 	ctlr->dmainit = ata_promise_mio_dmainit;
3606 	ctlr->setmode = ata_promise_mio_setmode;
3607 
3608 	return 0;
3609     }
3610 
3611 failnfree:
3612     if (ctlr->r_res2)
3613 	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
3614     if (ctlr->r_res1)
3615 	bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
3616     return ENXIO;
3617 }
3618 
3619 static int
3620 ata_promise_allocate(device_t dev)
3621 {
3622     struct ata_channel *ch = device_get_softc(dev);
3623 
3624     if (ata_pci_allocate(dev))
3625 	return ENXIO;
3626 
3627     ch->hw.status = ata_promise_status;
3628     return 0;
3629 }
3630 
3631 static int
3632 ata_promise_status(device_t dev)
3633 {
3634     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3635     struct ata_channel *ch = device_get_softc(dev);
3636 
3637     if (ATA_INL(ctlr->r_res1, 0x1c) & (ch->unit ? 0x00004000 : 0x00000400)) {
3638 	return ata_pci_status(dev);
3639     }
3640     return 0;
3641 }
3642 
3643 static int
3644 ata_promise_dmastart(device_t dev)
3645 {
3646     struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev));
3647     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
3648     struct ata_device *atadev  = device_get_softc(dev);
3649 
3650     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
3651 	ATA_OUTB(ctlr->r_res1, 0x11,
3652 		 ATA_INB(ctlr->r_res1, 0x11) | (ch->unit ? 0x08 : 0x02));
3653 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20,
3654 		 ((ch->dma->flags & ATA_DMA_READ) ? 0x05000000 : 0x06000000) |
3655 		 (ch->dma->cur_iosize >> 1));
3656     }
3657     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
3658 		 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
3659     ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, ch->dma->sg_bus);
3660     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
3661 		 ((ch->dma->flags & ATA_DMA_READ) ? ATA_BMCMD_WRITE_READ : 0) |
3662 		 ATA_BMCMD_START_STOP);
3663     ch->flags |= ATA_DMA_ACTIVE;
3664     return 0;
3665 }
3666 
3667 static int
3668 ata_promise_dmastop(device_t dev)
3669 {
3670     struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev));
3671     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
3672     struct ata_device *atadev  = device_get_softc(dev);
3673     int error;
3674 
3675     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
3676 	ATA_OUTB(ctlr->r_res1, 0x11,
3677 		 ATA_INB(ctlr->r_res1, 0x11) & ~(ch->unit ? 0x08 : 0x02));
3678 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20, 0);
3679     }
3680     error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT);
3681     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
3682 		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
3683     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
3684     ch->flags &= ~ATA_DMA_ACTIVE;
3685     return error;
3686 }
3687 
3688 static void
3689 ata_promise_dmareset(device_t dev)
3690 {
3691     struct ata_channel *ch = device_get_softc(dev);
3692 
3693     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
3694 		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
3695     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
3696     ch->flags &= ~ATA_DMA_ACTIVE;
3697 }
3698 
3699 static void
3700 ata_promise_dmainit(device_t dev)
3701 {
3702     struct ata_channel *ch = device_get_softc(dev);
3703 
3704     ata_dmainit(dev);
3705     if (ch->dma) {
3706 	ch->dma->start = ata_promise_dmastart;
3707 	ch->dma->stop = ata_promise_dmastop;
3708 	ch->dma->reset = ata_promise_dmareset;
3709     }
3710 }
3711 
3712 static void
3713 ata_promise_setmode(device_t dev, int mode)
3714 {
3715     device_t gparent = GRANDPARENT(dev);
3716     struct ata_pci_controller *ctlr = device_get_softc(gparent);
3717     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
3718     struct ata_device *atadev = device_get_softc(dev);
3719     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
3720     int error;
3721     u_int32_t timings[][2] = {
3722     /*    PROLD       PRNEW                mode */
3723 	{ 0x004ff329, 0x004fff2f },     /* PIO 0 */
3724 	{ 0x004fec25, 0x004ff82a },     /* PIO 1 */
3725 	{ 0x004fe823, 0x004ff026 },     /* PIO 2 */
3726 	{ 0x004fe622, 0x004fec24 },     /* PIO 3 */
3727 	{ 0x004fe421, 0x004fe822 },     /* PIO 4 */
3728 	{ 0x004567f3, 0x004acef6 },     /* MWDMA 0 */
3729 	{ 0x004467f3, 0x0048cef6 },     /* MWDMA 1 */
3730 	{ 0x004367f3, 0x0046cef6 },     /* MWDMA 2 */
3731 	{ 0x004367f3, 0x0046cef6 },     /* UDMA 0 */
3732 	{ 0x004247f3, 0x00448ef6 },     /* UDMA 1 */
3733 	{ 0x004127f3, 0x00436ef6 },     /* UDMA 2 */
3734 	{ 0,          0x00424ef6 },     /* UDMA 3 */
3735 	{ 0,          0x004127f3 },     /* UDMA 4 */
3736 	{ 0,          0x004127f3 }      /* UDMA 5 */
3737     };
3738 
3739     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
3740 
3741     switch (ctlr->chip->cfg1) {
3742     case PROLD:
3743     case PRNEW:
3744 	if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x50, 2) &
3745 				 (ch->unit ? 1 << 11 : 1 << 10))) {
3746 	    ata_print_cable(dev, "controller");
3747 	    mode = ATA_UDMA2;
3748 	}
3749 	if (ata_atapi(dev) && mode > ATA_PIO_MAX)
3750 	    mode = ata_limit_mode(dev, mode, ATA_PIO_MAX);
3751 	break;
3752 
3753     case PRTX:
3754 	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
3755 	if (mode > ATA_UDMA2 &&
3756 	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
3757 	    ata_print_cable(dev, "controller");
3758 	    mode = ATA_UDMA2;
3759 	}
3760 	break;
3761 
3762     case PRMIO:
3763 	if (mode > ATA_UDMA2 &&
3764 	    (ATA_INL(ctlr->r_res2,
3765 		     (ctlr->chip->cfg2 & PRSX4X ? 0x000c0260 : 0x0260) +
3766 		     (ch->unit << 7)) & 0x01000000)) {
3767 	    ata_print_cable(dev, "controller");
3768 	    mode = ATA_UDMA2;
3769 	}
3770 	break;
3771     }
3772 
3773     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
3774 
3775     if (bootverbose)
3776 	device_printf(dev, "%ssetting %s on %s chip\n",
3777 		     (error) ? "FAILURE " : "",
3778 		     ata_mode2str(mode), ctlr->chip->text);
3779     if (!error) {
3780 	if (ctlr->chip->cfg1 < PRTX)
3781 	    pci_write_config(gparent, 0x60 + (devno << 2),
3782 			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
3783 	atadev->mode = mode;
3784     }
3785     return;
3786 }
3787 
3788 static int
3789 ata_promise_tx2_allocate(device_t dev)
3790 {
3791     struct ata_channel *ch = device_get_softc(dev);
3792 
3793     if (ata_pci_allocate(dev))
3794 	return ENXIO;
3795 
3796     ch->hw.status = ata_promise_tx2_status;
3797     return 0;
3798 }
3799 
3800 static int
3801 ata_promise_tx2_status(device_t dev)
3802 {
3803     struct ata_channel *ch = device_get_softc(dev);
3804 
3805     ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
3806     if (ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x20) {
3807 	return ata_pci_status(dev);
3808     }
3809     return 0;
3810 }
3811 
3812 static int
3813 ata_promise_mio_allocate(device_t dev)
3814 {
3815     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3816     struct ata_channel *ch = device_get_softc(dev);
3817     int offset = (ctlr->chip->cfg2 & PRSX4X) ? 0x000c0000 : 0;
3818     int i;
3819 
3820     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
3821 	ch->r_io[i].res = ctlr->r_res2;
3822 	ch->r_io[i].offset = offset + 0x0200 + (i << 2) + (ch->unit << 7);
3823     }
3824     ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
3825     ch->r_io[ATA_CONTROL].offset = offset + 0x0238 + (ch->unit << 7);
3826     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
3827     ata_default_registers(dev);
3828     if ((ctlr->chip->cfg2 & (PRSATA | PRSATA2)) ||
3829 	((ctlr->chip->cfg2 & (PRCMBO | PRCMBO2)) && ch->unit < 2)) {
3830 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
3831 	ch->r_io[ATA_SSTATUS].offset = 0x400 + (ch->unit << 8);
3832 	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
3833 	ch->r_io[ATA_SERROR].offset = 0x404 + (ch->unit << 8);
3834 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
3835 	ch->r_io[ATA_SCONTROL].offset = 0x408 + (ch->unit << 8);
3836 	ch->flags |= ATA_NO_SLAVE;
3837     }
3838     ch->flags |= ATA_USE_16BIT;
3839 
3840     ata_generic_hw(dev);
3841     if (ctlr->chip->cfg2 & PRSX4X) {
3842 	ch->hw.command = ata_promise_sx4_command;
3843     }
3844     else {
3845 	ch->hw.command = ata_promise_mio_command;
3846 	ch->hw.status = ata_promise_mio_status;
3847      }
3848     return 0;
3849 }
3850 
3851 static void
3852 ata_promise_mio_intr(void *data)
3853 {
3854     struct ata_pci_controller *ctlr = data;
3855     struct ata_channel *ch;
3856     u_int32_t vector;
3857     int unit, fake_reg;
3858 
3859     switch (ctlr->chip->cfg2) {
3860     case PRPATA:
3861     case PRCMBO:
3862     case PRSATA:
3863 	fake_reg = 0x60;
3864 	break;
3865     case PRCMBO2:
3866     case PRSATA2:
3867     default:
3868 	fake_reg = 0x54;
3869 	break;
3870     }
3871 
3872     /*
3873      * since reading interrupt status register on early "mio" chips
3874      * clears the status bits we cannot read it for each channel later on
3875      * in the generic interrupt routine.
3876      * store the bits in an unused register in the chip so we can read
3877      * it from there safely to get around this "feature".
3878      */
3879     vector = ATA_INL(ctlr->r_res2, 0x040);
3880     ATA_OUTL(ctlr->r_res2, 0x040, vector);
3881     ATA_OUTL(ctlr->r_res2, fake_reg, vector);
3882 
3883     for (unit = 0; unit < ctlr->channels; unit++) {
3884 	if ((ch = ctlr->interrupt[unit].argument))
3885 	    ctlr->interrupt[unit].function(ch);
3886     }
3887 
3888     ATA_OUTL(ctlr->r_res2, fake_reg, 0xffffffff);
3889 }
3890 
3891 static int
3892 ata_promise_mio_status(device_t dev)
3893 {
3894     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3895     struct ata_channel *ch = device_get_softc(dev);
3896     struct ata_connect_task *tp;
3897     u_int32_t fake_reg, stat_reg, vector, status;
3898 
3899     switch (ctlr->chip->cfg2) {
3900     case PRPATA:
3901     case PRCMBO:
3902     case PRSATA:
3903 	fake_reg = 0x60;
3904 	stat_reg = 0x6c;
3905 	break;
3906     case PRCMBO2:
3907     case PRSATA2:
3908     default:
3909 	fake_reg = 0x54;
3910 	stat_reg = 0x60;
3911 	break;
3912     }
3913 
3914     /* read and acknowledge interrupt */
3915     vector = ATA_INL(ctlr->r_res2, fake_reg);
3916 
3917     /* read and clear interface status */
3918     status = ATA_INL(ctlr->r_res2, stat_reg);
3919     ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
3920 
3921     /* check for and handle disconnect events */
3922     if ((status & (0x00000001 << ch->unit)) &&
3923 	(tp = (struct ata_connect_task *)
3924 	      kmalloc(sizeof(struct ata_connect_task),
3925 		     M_ATA, M_INTWAIT | M_ZERO))) {
3926 
3927 	if (bootverbose)
3928 	    device_printf(ch->dev, "DISCONNECT requested\n");
3929 	tp->action = ATA_C_DETACH;
3930 	tp->dev = ch->dev;
3931 	TASK_INIT(&tp->task, 0, ata_sata_phy_event, tp);
3932 	taskqueue_enqueue(taskqueue_thread[mycpuid], &tp->task);
3933     }
3934 
3935     /* check for and handle connect events */
3936     if ((status & (0x00000010 << ch->unit)) &&
3937 	(tp = (struct ata_connect_task *)
3938 	      kmalloc(sizeof(struct ata_connect_task),
3939 		     M_ATA, M_INTWAIT | M_ZERO))) {
3940 
3941 	if (bootverbose)
3942 	    device_printf(ch->dev, "CONNECT requested\n");
3943 	tp->action = ATA_C_ATTACH;
3944 	tp->dev = ch->dev;
3945 	TASK_INIT(&tp->task, 0, ata_sata_phy_event, tp);
3946 	taskqueue_enqueue(taskqueue_thread[mycpuid], &tp->task);
3947     }
3948 
3949     /* do we have any device action ? */
3950     return (vector & (1 << (ch->unit + 1)));
3951 }
3952 
3953 static int
3954 ata_promise_mio_command(struct ata_request *request)
3955 {
3956     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
3957     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
3958     u_int32_t *wordp = (u_int32_t *)ch->dma->work;
3959 
3960     ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
3961 
3962     /* XXX SOS add ATAPI commands support later */
3963     switch (request->u.ata.command) {
3964     default:
3965 	return ata_generic_command(request);
3966 
3967     case ATA_READ_DMA:
3968     case ATA_READ_DMA48:
3969 	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
3970 	break;
3971 
3972     case ATA_WRITE_DMA:
3973     case ATA_WRITE_DMA48:
3974 	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
3975 	break;
3976     }
3977     wordp[1] = htole32(ch->dma->sg_bus);
3978     wordp[2] = 0;
3979     ata_promise_apkt((u_int8_t*)wordp, request);
3980 
3981     ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma->work_bus);
3982     return 0;
3983 }
3984 
3985 static void
3986 ata_promise_mio_reset(device_t dev)
3987 {
3988     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3989     struct ata_channel *ch = device_get_softc(dev);
3990     struct ata_promise_sx4 *hpktp;
3991 
3992     switch (ctlr->chip->cfg2) {
3993     case PRSX4X:
3994 
3995 	/* softreset channel ATA module */
3996 	hpktp = device_get_ivars(ctlr->dev);
3997 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
3998 	ata_udelay(1000);
3999 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
4000 		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
4001 		  ~0x00003f9f) | (ch->unit + 1));
4002 
4003 	/* softreset HOST module */ /* XXX SOS what about other outstandings */
4004 	spin_lock(&hpktp->mtx);
4005 	ATA_OUTL(ctlr->r_res2, 0xc012c,
4006 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
4007 	DELAY(10);
4008 	ATA_OUTL(ctlr->r_res2, 0xc012c,
4009 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
4010 	hpktp->busy = 0;
4011 	spin_unlock(&hpktp->mtx);
4012 	ata_generic_reset(dev);
4013 	break;
4014 
4015     case PRPATA:
4016     case PRCMBO:
4017     case PRSATA:
4018 	if ((ctlr->chip->cfg2 == PRSATA) ||
4019 	    ((ctlr->chip->cfg2 == PRCMBO) && (ch->unit < 2))) {
4020 
4021 	    /* mask plug/unplug intr */
4022 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
4023 	}
4024 
4025 	/* softreset channels ATA module */
4026 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
4027 	ata_udelay(10000);
4028 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
4029 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
4030 		  ~0x00003f9f) | (ch->unit + 1));
4031 
4032 	if ((ctlr->chip->cfg2 == PRSATA) ||
4033 	    ((ctlr->chip->cfg2 == PRCMBO) && (ch->unit < 2))) {
4034 
4035 	    if (ata_sata_phy_reset(dev))
4036 		ata_generic_reset(dev);
4037 
4038 	    /* reset and enable plug/unplug intr */
4039 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
4040 	}
4041 	else
4042 	    ata_generic_reset(dev);
4043 	break;
4044 
4045     case PRCMBO2:
4046     case PRSATA2:
4047 	if ((ctlr->chip->cfg2 == PRSATA2) ||
4048 	    ((ctlr->chip->cfg2 == PRCMBO2) && (ch->unit < 2))) {
4049 	    /* set portmultiplier port */
4050 	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
4051 
4052 	    /* mask plug/unplug intr */
4053 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
4054 	}
4055 
4056 	/* softreset channels ATA module */
4057 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
4058 	ata_udelay(10000);
4059 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
4060 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
4061 		  ~0x00003f9f) | (ch->unit + 1));
4062 
4063 	if ((ctlr->chip->cfg2 == PRSATA2) ||
4064 	    ((ctlr->chip->cfg2 == PRCMBO2) && (ch->unit < 2))) {
4065 
4066 	    /* set PHY mode to "improved" */
4067 	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
4068 		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
4069 		     ~0x00000003) | 0x00000001);
4070 
4071 	    if (ata_sata_phy_reset(dev))
4072 		ata_generic_reset(dev);
4073 
4074 	    /* reset and enable plug/unplug intr */
4075 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
4076 
4077 	    /* set portmultiplier port */
4078 	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
4079 	}
4080 	else
4081 	    ata_generic_reset(dev);
4082 	break;
4083 
4084     }
4085 }
4086 
4087 static void
4088 ata_promise_mio_dmainit(device_t dev)
4089 {
4090     /* note start and stop are not used here */
4091     ata_dmainit(dev);
4092 }
4093 
4094 static void
4095 ata_promise_mio_setmode(device_t dev, int mode)
4096 {
4097     device_t gparent = GRANDPARENT(dev);
4098     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4099     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
4100 
4101     if ( (ctlr->chip->cfg2 == PRSATA) ||
4102 	((ctlr->chip->cfg2 == PRCMBO) && (ch->unit < 2)) ||
4103 	(ctlr->chip->cfg2 == PRSATA2) ||
4104 	((ctlr->chip->cfg2 == PRCMBO2) && (ch->unit < 2)))
4105 	ata_sata_setmode(dev, mode);
4106     else
4107 	ata_promise_setmode(dev, mode);
4108 }
4109 
4110 static void
4111 ata_promise_sx4_intr(void *data)
4112 {
4113     struct ata_pci_controller *ctlr = data;
4114     struct ata_channel *ch;
4115     u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
4116     int unit;
4117 
4118     for (unit = 0; unit < ctlr->channels; unit++) {
4119 	if (vector & (1 << (unit + 1)))
4120 	    if ((ch = ctlr->interrupt[unit].argument))
4121 		ctlr->interrupt[unit].function(ch);
4122 	if (vector & (1 << (unit + 5)))
4123 	    if ((ch = ctlr->interrupt[unit].argument))
4124 		ata_promise_queue_hpkt(ctlr,
4125 				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
4126 					       ATA_PDC_HPKT_OFFSET));
4127 	if (vector & (1 << (unit + 9))) {
4128 	    ata_promise_next_hpkt(ctlr);
4129 	    if ((ch = ctlr->interrupt[unit].argument))
4130 		ctlr->interrupt[unit].function(ch);
4131 	}
4132 	if (vector & (1 << (unit + 13))) {
4133 	    ata_promise_next_hpkt(ctlr);
4134 	    if ((ch = ctlr->interrupt[unit].argument))
4135 		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
4136 			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
4137 			 ATA_PDC_APKT_OFFSET));
4138 	}
4139     }
4140 }
4141 
4142 static int
4143 ata_promise_sx4_command(struct ata_request *request)
4144 {
4145     device_t gparent = GRANDPARENT(request->dev);
4146     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4147     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
4148     struct ata_dma_prdentry *prd = ch->dma->sg;
4149     caddr_t window = rman_get_virtual(ctlr->r_res1);
4150     u_int32_t *wordp;
4151     int i, idx, length = 0;
4152 
4153     /* XXX SOS add ATAPI commands support later */
4154     switch (request->u.ata.command) {
4155 
4156     default:
4157 	return -1;
4158 
4159     case ATA_ATA_IDENTIFY:
4160     case ATA_READ:
4161     case ATA_READ48:
4162     case ATA_READ_MUL:
4163     case ATA_READ_MUL48:
4164     case ATA_WRITE:
4165     case ATA_WRITE48:
4166     case ATA_WRITE_MUL:
4167     case ATA_WRITE_MUL48:
4168 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
4169 	return ata_generic_command(request);
4170 
4171     case ATA_SETFEATURES:
4172     case ATA_FLUSHCACHE:
4173     case ATA_FLUSHCACHE48:
4174     case ATA_SLEEP:
4175     case ATA_SET_MULTI:
4176 	wordp = (u_int32_t *)
4177 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
4178 	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
4179 	wordp[1] = 0;
4180 	wordp[2] = 0;
4181 	ata_promise_apkt((u_int8_t *)wordp, request);
4182 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
4183 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
4184 	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
4185 		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
4186 	return 0;
4187 
4188     case ATA_READ_DMA:
4189     case ATA_READ_DMA48:
4190     case ATA_WRITE_DMA:
4191     case ATA_WRITE_DMA48:
4192 	wordp = (u_int32_t *)
4193 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
4194 	i = idx = 0;
4195 	do {
4196 	    wordp[idx++] = prd[i].addr;
4197 	    wordp[idx++] = prd[i].count;
4198 	    length += (prd[i].count & ~ATA_DMA_EOT);
4199 	} while (!(prd[i++].count & ATA_DMA_EOT));
4200 
4201 	wordp = (u_int32_t *)
4202 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
4203 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
4204 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
4205 
4206 	wordp = (u_int32_t *)
4207 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
4208 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
4209 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
4210 
4211 	wordp = (u_int32_t *)
4212 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
4213 	if (request->flags & ATA_R_READ)
4214 	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
4215 	if (request->flags & ATA_R_WRITE)
4216 	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
4217 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
4218 	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
4219 	wordp[3] = 0;
4220 
4221 	wordp = (u_int32_t *)
4222 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
4223 	if (request->flags & ATA_R_READ)
4224 	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
4225 	if (request->flags & ATA_R_WRITE)
4226 	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
4227 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
4228 	wordp[2] = 0;
4229 	ata_promise_apkt((u_int8_t *)wordp, request);
4230 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
4231 
4232 	if (request->flags & ATA_R_READ) {
4233 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
4234 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
4235 	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
4236 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
4237 	}
4238 	if (request->flags & ATA_R_WRITE) {
4239 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
4240 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
4241 	    ata_promise_queue_hpkt(ctlr,
4242 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
4243 	}
4244 	return 0;
4245     }
4246 }
4247 
4248 static int
4249 ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
4250 {
4251     struct ata_device *atadev = device_get_softc(request->dev);
4252     int i = 12;
4253 
4254     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
4255     bytep[i++] = ATA_D_IBM | ATA_D_LBA | atadev->unit;
4256     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
4257     bytep[i++] = ATA_A_4BIT;
4258 
4259     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
4260 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
4261 	bytep[i++] = request->u.ata.feature >> 8;
4262 	bytep[i++] = request->u.ata.feature;
4263 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
4264 	bytep[i++] = request->u.ata.count >> 8;
4265 	bytep[i++] = request->u.ata.count;
4266 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
4267 	bytep[i++] = request->u.ata.lba >> 24;
4268 	bytep[i++] = request->u.ata.lba;
4269 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
4270 	bytep[i++] = request->u.ata.lba >> 32;
4271 	bytep[i++] = request->u.ata.lba >> 8;
4272 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
4273 	bytep[i++] = request->u.ata.lba >> 40;
4274 	bytep[i++] = request->u.ata.lba >> 16;
4275 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
4276 	bytep[i++] = ATA_D_LBA | atadev->unit;
4277     }
4278     else {
4279 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
4280 	bytep[i++] = request->u.ata.feature;
4281 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
4282 	bytep[i++] = request->u.ata.count;
4283 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
4284 	bytep[i++] = request->u.ata.lba;
4285 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
4286 	bytep[i++] = request->u.ata.lba >> 8;
4287 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
4288 	bytep[i++] = request->u.ata.lba >> 16;
4289 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
4290 	bytep[i++] = (atadev->flags & ATA_D_USE_CHS ? 0 : ATA_D_LBA) |
4291 		   ATA_D_IBM | atadev->unit | ((request->u.ata.lba >> 24)&0xf);
4292     }
4293     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
4294     bytep[i++] = request->u.ata.command;
4295     return i;
4296 }
4297 
4298 static void
4299 ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
4300 {
4301     struct ata_promise_sx4 *hpktp = device_get_ivars(ctlr->dev);
4302 
4303     spin_lock(&hpktp->mtx);
4304     if (hpktp->busy) {
4305 	struct host_packet *hp =
4306 	    kmalloc(sizeof(struct host_packet), M_TEMP, M_INTWAIT | M_ZERO);
4307 	hp->addr = hpkt;
4308 	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
4309     }
4310     else {
4311 	hpktp->busy = 1;
4312 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
4313     }
4314     spin_unlock(&hpktp->mtx);
4315 }
4316 
4317 static void
4318 ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
4319 {
4320     struct ata_promise_sx4 *hpktp = device_get_ivars(ctlr->dev);
4321     struct host_packet *hp;
4322 
4323     spin_lock(&hpktp->mtx);
4324     if ((hp = TAILQ_FIRST(&hpktp->queue))) {
4325 	TAILQ_REMOVE(&hpktp->queue, hp, chain);
4326 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
4327 	kfree(hp, M_TEMP);
4328     }
4329     else
4330 	hpktp->busy = 0;
4331     spin_unlock(&hpktp->mtx);
4332 }
4333 
4334 
4335 /*
4336  * ServerWorks chipset support functions
4337  */
4338 int
4339 ata_serverworks_ident(device_t dev)
4340 {
4341     struct ata_pci_controller *ctlr = device_get_softc(dev);
4342     struct ata_chip_id *idx;
4343     static struct ata_chip_id ids[] =
4344     {{ ATA_ROSB4,     0x00, SWKS33,  0, ATA_UDMA2, "ROSB4" },
4345      { ATA_CSB5,      0x92, SWKS100, 0, ATA_UDMA5, "CSB5" },
4346      { ATA_CSB5,      0x00, SWKS66,  0, ATA_UDMA4, "CSB5" },
4347      { ATA_CSB6,      0x00, SWKS100, 0, ATA_UDMA5, "CSB6" },
4348      { ATA_CSB6_1,    0x00, SWKS66,  0, ATA_UDMA4, "CSB6" },
4349      { ATA_HT1000,    0x00, SWKS100, 0, ATA_UDMA5, "HT1000" },
4350      { ATA_HT1000_S1, 0x00, SWKS100, 4, ATA_SA150, "HT1000" },
4351      { ATA_HT1000_S2, 0x00, SWKSMIO, 4, ATA_SA150, "HT1000" },
4352      { ATA_K2,        0x00, SWKSMIO, 4, ATA_SA150, "K2" },
4353      { ATA_FRODO4,    0x00, SWKSMIO, 4, ATA_SA150, "Frodo4" },
4354      { ATA_FRODO8,    0x00, SWKSMIO, 8, ATA_SA150, "Frodo8" },
4355      { 0, 0, 0, 0, 0, 0}};
4356     char buffer[64];
4357 
4358     if (!(idx = ata_match_chip(dev, ids)))
4359 	return ENXIO;
4360 
4361     ksprintf(buffer, "ServerWorks %s %s controller",
4362 	    idx->text, ata_mode2str(idx->max_dma));
4363     device_set_desc_copy(dev, buffer);
4364     ctlr->chip = idx;
4365     ctlr->chipinit = ata_serverworks_chipinit;
4366     return 0;
4367 }
4368 
4369 static int
4370 ata_serverworks_chipinit(device_t dev)
4371 {
4372     struct ata_pci_controller *ctlr = device_get_softc(dev);
4373 
4374     if (ata_setup_interrupt(dev))
4375 	return ENXIO;
4376 
4377     if (ctlr->chip->cfg1 == SWKSMIO) {
4378 	ctlr->r_type2 = SYS_RES_MEMORY;
4379 	ctlr->r_rid2 = PCIR_BAR(5);
4380 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
4381 						    &ctlr->r_rid2, RF_ACTIVE))){
4382 	    ata_teardown_interrupt(dev);
4383 	    return ENXIO;
4384 	}
4385 
4386 	ctlr->channels = ctlr->chip->cfg2;
4387 	ctlr->allocate = ata_serverworks_allocate;
4388 	ctlr->setmode = ata_sata_setmode;
4389 	return 0;
4390     }
4391     else if (ctlr->chip->cfg1 == SWKS33) {
4392 	device_t *children;
4393 	int nchildren, i;
4394 
4395 	/* locate the ISA part in the southbridge and enable UDMA33 */
4396 	if (!device_get_children(device_get_parent(dev), &children,&nchildren)){
4397 	    for (i = 0; i < nchildren; i++) {
4398 		if (pci_get_devid(children[i]) == ATA_ROSB4_ISA) {
4399 		    pci_write_config(children[i], 0x64,
4400 				     (pci_read_config(children[i], 0x64, 4) &
4401 				      ~0x00002000) | 0x00004000, 4);
4402 		    break;
4403 		}
4404 	    }
4405 	    kfree(children, M_TEMP);
4406 	}
4407     }
4408     else {
4409 	pci_write_config(dev, 0x5a,
4410 			 (pci_read_config(dev, 0x5a, 1) & ~0x40) |
4411 			 (ctlr->chip->cfg1 == SWKS100) ? 0x03 : 0x02, 1);
4412     }
4413     ctlr->setmode = ata_serverworks_setmode;
4414     return 0;
4415 }
4416 
4417 static int
4418 ata_serverworks_allocate(device_t dev)
4419 {
4420     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4421     struct ata_channel *ch = device_get_softc(dev);
4422     int ch_offset;
4423     int i;
4424 
4425     ch_offset = ch->unit * 0x100;
4426 
4427     for (i = ATA_DATA; i < ATA_MAX_RES; i++)
4428 	ch->r_io[i].res = ctlr->r_res2;
4429 
4430     /* setup ATA registers */
4431     ch->r_io[ATA_DATA].offset = ch_offset + 0x00;
4432     ch->r_io[ATA_FEATURE].offset = ch_offset + 0x04;
4433     ch->r_io[ATA_COUNT].offset = ch_offset + 0x08;
4434     ch->r_io[ATA_SECTOR].offset = ch_offset + 0x0c;
4435     ch->r_io[ATA_CYL_LSB].offset = ch_offset + 0x10;
4436     ch->r_io[ATA_CYL_MSB].offset = ch_offset + 0x14;
4437     ch->r_io[ATA_DRIVE].offset = ch_offset + 0x18;
4438     ch->r_io[ATA_COMMAND].offset = ch_offset + 0x1c;
4439     ch->r_io[ATA_CONTROL].offset = ch_offset + 0x20;
4440     ata_default_registers(dev);
4441 
4442     /* setup DMA registers */
4443     ch->r_io[ATA_BMCMD_PORT].offset = ch_offset + 0x30;
4444     ch->r_io[ATA_BMSTAT_PORT].offset = ch_offset + 0x32;
4445     ch->r_io[ATA_BMDTP_PORT].offset = ch_offset + 0x34;
4446 
4447     /* setup SATA registers */
4448     ch->r_io[ATA_SSTATUS].offset = ch_offset + 0x40;
4449     ch->r_io[ATA_SERROR].offset = ch_offset + 0x44;
4450     ch->r_io[ATA_SCONTROL].offset = ch_offset + 0x48;
4451 
4452     ch->flags |= ATA_NO_SLAVE;
4453     ata_pci_hw(dev);
4454 
4455     /* chip does not reliably do 64K DMA transfers */
4456     if (ch->dma)
4457 	ch->dma->max_iosize = 126 * DEV_BSIZE;
4458 
4459     return 0;
4460 }
4461 
4462 static void
4463 ata_serverworks_setmode(device_t dev, int mode)
4464 {
4465     device_t gparent = GRANDPARENT(dev);
4466     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4467     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
4468     struct ata_device *atadev = device_get_softc(dev);
4469     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
4470     int offset = (devno ^ 0x01) << 3;
4471     int error;
4472     u_int8_t piotimings[] = { 0x5d, 0x47, 0x34, 0x22, 0x20, 0x34, 0x22, 0x20,
4473 			      0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
4474     u_int8_t dmatimings[] = { 0x77, 0x21, 0x20 };
4475 
4476     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
4477 
4478     mode = ata_check_80pin(dev, mode);
4479 
4480     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
4481 
4482     if (bootverbose)
4483 	device_printf(dev, "%ssetting %s on %s chip\n",
4484 		      (error) ? "FAILURE " : "",
4485 		      ata_mode2str(mode), ctlr->chip->text);
4486     if (!error) {
4487 	if (mode >= ATA_UDMA0) {
4488 	    pci_write_config(gparent, 0x56,
4489 			     (pci_read_config(gparent, 0x56, 2) &
4490 			      ~(0xf << (devno << 2))) |
4491 			     ((mode & ATA_MODE_MASK) << (devno << 2)), 2);
4492 	    pci_write_config(gparent, 0x54,
4493 			     pci_read_config(gparent, 0x54, 1) |
4494 			     (0x01 << devno), 1);
4495 	    pci_write_config(gparent, 0x44,
4496 			     (pci_read_config(gparent, 0x44, 4) &
4497 			      ~(0xff << offset)) |
4498 			     (dmatimings[2] << offset), 4);
4499 	}
4500 	else if (mode >= ATA_WDMA0) {
4501 	    pci_write_config(gparent, 0x54,
4502 			     pci_read_config(gparent, 0x54, 1) &
4503 			      ~(0x01 << devno), 1);
4504 	    pci_write_config(gparent, 0x44,
4505 			     (pci_read_config(gparent, 0x44, 4) &
4506 			      ~(0xff << offset)) |
4507 			     (dmatimings[mode & ATA_MODE_MASK] << offset), 4);
4508 	}
4509 	else
4510 	    pci_write_config(gparent, 0x54,
4511 			     pci_read_config(gparent, 0x54, 1) &
4512 			     ~(0x01 << devno), 1);
4513 
4514 	pci_write_config(gparent, 0x40,
4515 			 (pci_read_config(gparent, 0x40, 4) &
4516 			  ~(0xff << offset)) |
4517 			 (piotimings[ata_mode2idx(mode)] << offset), 4);
4518 	atadev->mode = mode;
4519     }
4520 }
4521 
4522 
4523 /*
4524  * Silicon Image Inc. (SiI) (former CMD) chipset support functions
4525  */
4526 int
4527 ata_sii_ident(device_t dev)
4528 {
4529     struct ata_pci_controller *ctlr = device_get_softc(dev);
4530     struct ata_chip_id *idx;
4531     static struct ata_chip_id ids[] =
4532     {{ ATA_SII3114,   0x00, SIIMEMIO, SII4CH,    ATA_SA150, "SiI 3114" },
4533      { ATA_SII3512,   0x02, SIIMEMIO, 0,         ATA_SA150, "SiI 3512" },
4534      { ATA_SII3112,   0x02, SIIMEMIO, 0,         ATA_SA150, "SiI 3112" },
4535      { ATA_SII3112_1, 0x02, SIIMEMIO, 0,         ATA_SA150, "SiI 3112" },
4536      { ATA_SII3512,   0x00, SIIMEMIO, SIIBUG,    ATA_SA150, "SiI 3512" },
4537      { ATA_SII3112,   0x00, SIIMEMIO, SIIBUG,    ATA_SA150, "SiI 3112" },
4538      { ATA_SII3112_1, 0x00, SIIMEMIO, SIIBUG,    ATA_SA150, "SiI 3112" },
4539      { ATA_SII3124,   0x00, SIIPRBIO, SII4CH,    ATA_SA300, "SiI 3124" },
4540      { ATA_SII3132,   0x00, SIIPRBIO, 0,         ATA_SA300, "SiI 3132" },
4541      { ATA_SII0680,   0x00, SIIMEMIO, SIISETCLK, ATA_UDMA6, "SiI 0680" },
4542      { ATA_CMD649,    0x00, 0,        SIIINTR,   ATA_UDMA5, "CMD 649" },
4543      { ATA_CMD648,    0x00, 0,        SIIINTR,   ATA_UDMA4, "CMD 648" },
4544      { ATA_CMD646,    0x07, 0,        0,         ATA_UDMA2, "CMD 646U2" },
4545      { ATA_CMD646,    0x00, 0,        0,         ATA_WDMA2, "CMD 646" },
4546      { 0, 0, 0, 0, 0, 0}};
4547     char buffer[64];
4548 
4549     if (!(idx = ata_match_chip(dev, ids)))
4550 	return ENXIO;
4551 
4552     ksprintf(buffer, "%s %s controller", idx->text, ata_mode2str(idx->max_dma));
4553     device_set_desc_copy(dev, buffer);
4554     ctlr->chip = idx;
4555     ctlr->chipinit = ata_sii_chipinit;
4556     return 0;
4557 }
4558 
4559 static int
4560 ata_sii_chipinit(device_t dev)
4561 {
4562     struct ata_pci_controller *ctlr = device_get_softc(dev);
4563 
4564     if (ata_setup_interrupt(dev))
4565 	return ENXIO;
4566 
4567     switch (ctlr->chip->cfg1) {
4568     case SIIPRBIO:
4569 	ctlr->r_type1 = SYS_RES_MEMORY;
4570 	ctlr->r_rid1 = PCIR_BAR(0);
4571 	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
4572 						    &ctlr->r_rid1, RF_ACTIVE))){
4573 	    ata_teardown_interrupt(dev);
4574 	    return ENXIO;
4575 	}
4576 
4577 	ctlr->r_rid2 = PCIR_BAR(2);
4578 	ctlr->r_type2 = SYS_RES_MEMORY;
4579 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
4580 						    &ctlr->r_rid2, RF_ACTIVE))){
4581 	    bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1,ctlr->r_res1);
4582 	    ata_teardown_interrupt(dev);
4583 	    return ENXIO;
4584 	}
4585 	ctlr->allocate = ata_siiprb_allocate;
4586 	ctlr->reset = ata_siiprb_reset;
4587 	ctlr->dmainit = ata_siiprb_dmainit;
4588 	ctlr->setmode = ata_sata_setmode;
4589 	ctlr->channels = (ctlr->chip->cfg2 == SII4CH) ? 4 : 2;
4590 
4591 	/* reset controller */
4592 	ATA_OUTL(ctlr->r_res1, 0x0040, 0x80000000);
4593 	DELAY(10000);
4594 	ATA_OUTL(ctlr->r_res1, 0x0040, 0x0000000f);
4595 
4596 	/* enable PCI interrupt */
4597 	pci_write_config(dev, PCIR_COMMAND,
4598 	pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
4599 	break;
4600 
4601     case SIIMEMIO:
4602 	ctlr->r_type2 = SYS_RES_MEMORY;
4603 	ctlr->r_rid2 = PCIR_BAR(5);
4604 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
4605 						    &ctlr->r_rid2, RF_ACTIVE))){
4606 	    ata_teardown_interrupt(dev);
4607 	    return ENXIO;
4608 	}
4609 
4610 	if (ctlr->chip->cfg2 & SIISETCLK) {
4611 	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
4612 		pci_write_config(dev, 0x8a,
4613 				 (pci_read_config(dev, 0x8a, 1) & 0xcf)|0x10,1);
4614 	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
4615 		device_printf(dev, "%s could not set ATA133 clock\n",
4616 			      ctlr->chip->text);
4617 	}
4618 
4619 	/* if we have 4 channels enable the second set */
4620 	if (ctlr->chip->cfg2 & SII4CH) {
4621 	    ATA_OUTL(ctlr->r_res2, 0x0200, 0x00000002);
4622 	    ctlr->channels = 4;
4623 	}
4624 
4625 	/* dont block interrupts from any channel */
4626 	pci_write_config(dev, 0x48,
4627 			 (pci_read_config(dev, 0x48, 4) & ~0x03c00000), 4);
4628 
4629 	/* enable PCI interrupt as BIOS might not */
4630 	pci_write_config(dev, 0x8a, (pci_read_config(dev, 0x8a, 1) & 0x3f), 1);
4631 
4632 	ctlr->allocate = ata_sii_allocate;
4633 	if (ctlr->chip->max_dma >= ATA_SA150) {
4634 	    ctlr->reset = ata_sii_reset;
4635 	    ctlr->setmode = ata_sata_setmode;
4636 	}
4637 	else
4638 	    ctlr->setmode = ata_sii_setmode;
4639 	break;
4640 
4641     default:
4642 	if ((pci_read_config(dev, 0x51, 1) & 0x08) != 0x08) {
4643 	    device_printf(dev, "HW has secondary channel disabled\n");
4644 	    ctlr->channels = 1;
4645 	}
4646 
4647 	/* enable interrupt as BIOS might not */
4648 	pci_write_config(dev, 0x71, 0x01, 1);
4649 
4650 	ctlr->allocate = ata_cmd_allocate;
4651 	ctlr->setmode = ata_cmd_setmode;
4652 	break;
4653     }
4654     return 0;
4655 }
4656 
4657 static int
4658 ata_cmd_allocate(device_t dev)
4659 {
4660     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4661     struct ata_channel *ch = device_get_softc(dev);
4662 
4663     /* setup the usual register normal pci style */
4664     if (ata_pci_allocate(dev))
4665 	return ENXIO;
4666 
4667     if (ctlr->chip->cfg2 & SIIINTR)
4668 	ch->hw.status = ata_cmd_status;
4669 
4670     return 0;
4671 }
4672 
4673 static int
4674 ata_cmd_status(device_t dev)
4675 {
4676     struct ata_channel *ch = device_get_softc(dev);
4677     u_int8_t reg71;
4678 
4679     if (((reg71 = pci_read_config(device_get_parent(ch->dev), 0x71, 1)) &
4680 	 (ch->unit ? 0x08 : 0x04))) {
4681 	pci_write_config(device_get_parent(ch->dev), 0x71,
4682 			 reg71 & ~(ch->unit ? 0x04 : 0x08), 1);
4683 	return ata_pci_status(dev);
4684     }
4685     return 0;
4686 }
4687 
4688 static void
4689 ata_cmd_setmode(device_t dev, int mode)
4690 {
4691     device_t gparent = GRANDPARENT(dev);
4692     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4693     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
4694     struct ata_device *atadev = device_get_softc(dev);
4695     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
4696     int error;
4697 
4698     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
4699 
4700     mode = ata_check_80pin(dev, mode);
4701 
4702     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
4703 
4704     if (bootverbose)
4705 	device_printf(dev, "%ssetting %s on %s chip\n",
4706 		      (error) ? "FAILURE " : "",
4707 		      ata_mode2str(mode), ctlr->chip->text);
4708     if (!error) {
4709 	int treg = 0x54 + ((devno < 3) ? (devno << 1) : 7);
4710 	int ureg = ch->unit ? 0x7b : 0x73;
4711 
4712 	if (mode >= ATA_UDMA0) {
4713 	    int udmatimings[][2] = { { 0x31,  0xc2 }, { 0x21,  0x82 },
4714 				     { 0x11,  0x42 }, { 0x25,  0x8a },
4715 				     { 0x15,  0x4a }, { 0x05,  0x0a } };
4716 
4717 	    u_int8_t umode = pci_read_config(gparent, ureg, 1);
4718 
4719 	    umode &= ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca);
4720 	    umode |= udmatimings[mode & ATA_MODE_MASK][ATA_DEV(atadev->unit)];
4721 	    pci_write_config(gparent, ureg, umode, 1);
4722 	}
4723 	else if (mode >= ATA_WDMA0) {
4724 	    int dmatimings[] = { 0x87, 0x32, 0x3f };
4725 
4726 	    pci_write_config(gparent, treg, dmatimings[mode & ATA_MODE_MASK],1);
4727 	    pci_write_config(gparent, ureg,
4728 			     pci_read_config(gparent, ureg, 1) &
4729 			     ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca), 1);
4730 	}
4731 	else {
4732 	   int piotimings[] = { 0xa9, 0x57, 0x44, 0x32, 0x3f };
4733 	    pci_write_config(gparent, treg,
4734 			     piotimings[(mode & ATA_MODE_MASK) - ATA_PIO0], 1);
4735 	    pci_write_config(gparent, ureg,
4736 			     pci_read_config(gparent, ureg, 1) &
4737 			     ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca), 1);
4738 	}
4739 	atadev->mode = mode;
4740     }
4741 }
4742 
4743 static int
4744 ata_sii_allocate(device_t dev)
4745 {
4746     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4747     struct ata_channel *ch = device_get_softc(dev);
4748     int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2);
4749     int i;
4750 
4751     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
4752 	ch->r_io[i].res = ctlr->r_res2;
4753 	ch->r_io[i].offset = 0x80 + i + (unit01 << 6) + (unit10 << 8);
4754     }
4755     ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
4756     ch->r_io[ATA_CONTROL].offset = 0x8a + (unit01 << 6) + (unit10 << 8);
4757     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
4758     ata_default_registers(dev);
4759 
4760     ch->r_io[ATA_BMCMD_PORT].res = ctlr->r_res2;
4761     ch->r_io[ATA_BMCMD_PORT].offset = 0x00 + (unit01 << 3) + (unit10 << 8);
4762     ch->r_io[ATA_BMSTAT_PORT].res = ctlr->r_res2;
4763     ch->r_io[ATA_BMSTAT_PORT].offset = 0x02 + (unit01 << 3) + (unit10 << 8);
4764     ch->r_io[ATA_BMDTP_PORT].res = ctlr->r_res2;
4765     ch->r_io[ATA_BMDTP_PORT].offset = 0x04 + (unit01 << 3) + (unit10 << 8);
4766 
4767     if (ctlr->chip->max_dma >= ATA_SA150) {
4768 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
4769 	ch->r_io[ATA_SSTATUS].offset = 0x104 + (unit01 << 7) + (unit10 << 8);
4770 	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
4771 	ch->r_io[ATA_SERROR].offset = 0x108 + (unit01 << 7) + (unit10 << 8);
4772 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
4773 	ch->r_io[ATA_SCONTROL].offset = 0x100 + (unit01 << 7) + (unit10 << 8);
4774 	ch->flags |= ATA_NO_SLAVE;
4775 
4776 	/* enable PHY state change interrupt */
4777 	ATA_OUTL(ctlr->r_res2, 0x148 + (unit01 << 7) + (unit10 << 8),(1 << 16));
4778     }
4779 
4780     if ((ctlr->chip->cfg2 & SIIBUG) && ch->dma) {
4781 	/* work around errata in early chips */
4782 	ch->dma->boundary = 16 * DEV_BSIZE;
4783 	ch->dma->segsize = 15 * DEV_BSIZE;
4784     }
4785 
4786     ata_pci_hw(dev);
4787     ch->hw.status = ata_sii_status;
4788     return 0;
4789 }
4790 
4791 static int
4792 ata_sii_status(device_t dev)
4793 {
4794     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4795     struct ata_channel *ch = device_get_softc(dev);
4796     int offset0 = ((ch->unit & 1) << 3) + ((ch->unit & 2) << 8);
4797     int offset1 = ((ch->unit & 1) << 6) + ((ch->unit & 2) << 8);
4798 
4799     /* do we have any PHY events ? */
4800     if (ctlr->chip->max_dma >= ATA_SA150 &&
4801 	(ATA_INL(ctlr->r_res2, 0x10 + offset0) & 0x00000010))
4802 	ata_sata_phy_check_events(dev);
4803 
4804     if (ATA_INL(ctlr->r_res2, 0xa0 + offset1) & 0x00000800)
4805 	return ata_pci_status(dev);
4806     else
4807 	return 0;
4808 }
4809 
4810 static void
4811 ata_sii_reset(device_t dev)
4812 {
4813     if (ata_sata_phy_reset(dev))
4814 	ata_generic_reset(dev);
4815 }
4816 
4817 static void
4818 ata_sii_setmode(device_t dev, int mode)
4819 {
4820     device_t gparent = GRANDPARENT(dev);
4821     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4822     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
4823     struct ata_device *atadev = device_get_softc(dev);
4824     int rego = (ch->unit << 4) + (ATA_DEV(atadev->unit) << 1);
4825     int mreg = ch->unit ? 0x84 : 0x80;
4826     int mask = 0x03 << (ATA_DEV(atadev->unit) << 2);
4827     int mval = pci_read_config(gparent, mreg, 1) & ~mask;
4828     int error;
4829 
4830     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
4831 
4832     if (ctlr->chip->cfg2 & SIISETCLK) {
4833 	if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x79, 1) &
4834 				 (ch->unit ? 0x02 : 0x01))) {
4835 	    ata_print_cable(dev, "controller");
4836 	    mode = ATA_UDMA2;
4837 	}
4838     }
4839     else
4840 	mode = ata_check_80pin(dev, mode);
4841 
4842     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
4843 
4844     if (bootverbose)
4845 	device_printf(dev, "%ssetting %s on %s chip\n",
4846 		      (error) ? "FAILURE " : "",
4847 		      ata_mode2str(mode), ctlr->chip->text);
4848     if (error)
4849 	return;
4850 
4851     if (mode >= ATA_UDMA0) {
4852 	u_int8_t udmatimings[] = { 0xf, 0xb, 0x7, 0x5, 0x3, 0x2, 0x1 };
4853 	u_int8_t ureg = 0xac + rego;
4854 
4855 	pci_write_config(gparent, mreg,
4856 			 mval | (0x03 << (ATA_DEV(atadev->unit) << 2)), 1);
4857 	pci_write_config(gparent, ureg,
4858 			 (pci_read_config(gparent, ureg, 1) & ~0x3f) |
4859 			 udmatimings[mode & ATA_MODE_MASK], 1);
4860 
4861     }
4862     else if (mode >= ATA_WDMA0) {
4863 	u_int8_t dreg = 0xa8 + rego;
4864 	u_int16_t dmatimings[] = { 0x2208, 0x10c2, 0x10c1 };
4865 
4866 	pci_write_config(gparent, mreg,
4867 			 mval | (0x02 << (ATA_DEV(atadev->unit) << 2)), 1);
4868 	pci_write_config(gparent, dreg, dmatimings[mode & ATA_MODE_MASK], 2);
4869 
4870     }
4871     else {
4872 	u_int8_t preg = 0xa4 + rego;
4873 	u_int16_t piotimings[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
4874 
4875 	pci_write_config(gparent, mreg,
4876 			 mval | (0x01 << (ATA_DEV(atadev->unit) << 2)), 1);
4877 	pci_write_config(gparent, preg, piotimings[mode & ATA_MODE_MASK], 2);
4878     }
4879     atadev->mode = mode;
4880 }
4881 
4882 struct ata_siiprb_dma_prdentry {
4883     u_int64_t addr;
4884     u_int32_t count;
4885     u_int32_t control;
4886 } __packed;
4887 
4888 struct ata_siiprb_ata_command {
4889     u_int32_t reserved0;
4890     struct ata_siiprb_dma_prdentry prd[126];
4891 } __packed;
4892 
4893 struct ata_siiprb_atapi_command {
4894     u_int8_t cdb[16];
4895     struct ata_siiprb_dma_prdentry prd[125];
4896 } __packed;
4897 
4898 struct ata_siiprb_command {
4899     u_int16_t control;
4900     u_int16_t protocol_override;
4901     u_int32_t transfer_count;
4902     u_int8_t fis[20];
4903     union {
4904 	struct ata_siiprb_ata_command ata;
4905 	struct ata_siiprb_atapi_command atapi;
4906     } u;
4907 } __packed;
4908 
4909 static int
4910 ata_siiprb_allocate(device_t dev)
4911 {
4912     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4913     struct ata_channel *ch = device_get_softc(dev);
4914     int offset = ch->unit * 0x2000;
4915 
4916     /* set the SATA resources */
4917     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
4918     ch->r_io[ATA_SSTATUS].offset = 0x1f04 + offset;
4919     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
4920     ch->r_io[ATA_SERROR].offset = 0x1f08 + offset;
4921     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
4922     ch->r_io[ATA_SCONTROL].offset = 0x1f00 + offset;
4923     ch->r_io[ATA_SACTIVE].res = ctlr->r_res2;
4924     ch->r_io[ATA_SACTIVE].offset = 0x1f0c + offset;
4925 
4926     ch->hw.begin_transaction = ata_siiprb_begin_transaction;
4927     ch->hw.end_transaction = ata_siiprb_end_transaction;
4928     ch->hw.status = ata_siiprb_status;
4929     ch->hw.command = NULL;	/* not used here */
4930     return 0;
4931 }
4932 
4933 static int
4934 ata_siiprb_status(device_t dev)
4935 {
4936     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4937     struct ata_channel *ch = device_get_softc(dev);
4938     int offset = ch->unit * 0x2000;
4939 
4940     if ((ATA_INL(ctlr->r_res1, 0x0044) & (1 << ch->unit))) {
4941 	u_int32_t istatus = ATA_INL(ctlr->r_res2, 0x1008 + offset);
4942 
4943 	/* do we have any PHY events ? */
4944 	ata_sata_phy_check_events(dev);
4945 
4946 	/* clear interrupt(s) */
4947 	ATA_OUTL(ctlr->r_res2, 0x1008 + offset, istatus);
4948 
4949 	/* do we have any device action ? */
4950 	return (istatus & 0x00000001);
4951     }
4952     return 0;
4953 }
4954 
4955 static int
4956 ata_siiprb_begin_transaction(struct ata_request *request)
4957 {
4958     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
4959     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
4960     struct ata_siiprb_command *prb;
4961     int offset = ch->unit * 0x2000;
4962     u_int64_t prb_bus;
4963     int tag = 0, dummy;
4964 
4965     /* check for 48 bit access and convert if needed */
4966     ata_modify_if_48bit(request);
4967 
4968     /* get a piece of the workspace for this request */
4969     prb = (struct ata_siiprb_command *)
4970 	(ch->dma->work + (sizeof(struct ata_siiprb_command) * tag));
4971 
4972     /* set basic prd options ata/atapi etc etc */
4973     bzero(prb, sizeof(struct ata_siiprb_command));
4974 
4975     /* setup the FIS for this request */
4976     if (!ata_request2fis_h2d(request, &prb->fis[0])) {
4977         device_printf(request->dev, "setting up SATA FIS failed\n");
4978         request->result = EIO;
4979         return ATA_OP_FINISHED;
4980     }
4981 
4982     /* if request moves data setup and load SG list */
4983     if (request->flags & (ATA_R_READ | ATA_R_WRITE)) {
4984 	struct ata_siiprb_dma_prdentry *prd;
4985 
4986 	if (request->flags & ATA_R_ATAPI)
4987 	    prd = &prb->u.atapi.prd[0];
4988 	else
4989 	    prd = &prb->u.ata.prd[0];
4990 	if (ch->dma->load(ch->dev, request->data, request->bytecount,
4991 			  request->flags & ATA_R_READ, prd, &dummy)) {
4992 	    device_printf(request->dev, "setting up DMA failed\n");
4993 	    request->result = EIO;
4994 	    return ATA_OP_FINISHED;
4995 	}
4996     }
4997 
4998     /* activate the prb */
4999     prb_bus = ch->dma->work_bus + (sizeof(struct ata_siiprb_command) * tag);
5000     ATA_OUTL(ctlr->r_res2,
5001 	     0x1c00 + offset + (tag * sizeof(u_int64_t)), prb_bus);
5002     ATA_OUTL(ctlr->r_res2,
5003 	     0x1c04 + offset + (tag * sizeof(u_int64_t)), prb_bus>>32);
5004 
5005     /* start the timeout */
5006     callout_reset(&request->callout, request->timeout * hz,
5007                   (timeout_t*)ata_timeout, request);
5008     return ATA_OP_CONTINUES;
5009 }
5010 
5011 static int
5012 ata_siiprb_end_transaction(struct ata_request *request)
5013 {
5014     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
5015     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
5016     struct ata_siiprb_command *prb;
5017     int offset = ch->unit * 0x2000;
5018     int error, tag = 0;
5019 
5020     /* kill the timeout */
5021     callout_stop(&request->callout);
5022 
5023     prb = (struct ata_siiprb_command *)
5024 	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + (tag << 7) + offset);
5025 
5026     /* if error status get details */
5027     request->status = prb->fis[2];
5028     if (request->status & ATA_S_ERROR)
5029 	request->error = prb->fis[3];
5030 
5031     /* update progress */
5032     if (!(request->status & ATA_S_ERROR) && !(request->flags & ATA_R_TIMEOUT)) {
5033 	if (request->flags & ATA_R_READ)
5034 	    request->donecount = prb->transfer_count;
5035 	else
5036 	    request->donecount = request->bytecount;
5037     }
5038 
5039     /* any controller errors flagged ? */
5040     if ((error = ATA_INL(ctlr->r_res2, 0x1024 + offset))) {
5041 	kprintf("ata_siiprb_end_transaction %s error=%08x\n",
5042 		ata_cmd2str(request), error);
5043     }
5044 
5045     /* release SG list etc */
5046     ch->dma->unload(ch->dev);
5047 
5048     return ATA_OP_FINISHED;
5049 }
5050 
5051 static void
5052 ata_siiprb_reset(device_t dev)
5053 {
5054     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
5055     struct ata_channel *ch = device_get_softc(dev);
5056     int offset = ch->unit * 0x2000;
5057     struct ata_siiprb_command *prb;
5058     u_int64_t prb_bus;
5059     u_int32_t status, signature;
5060     int timeout, tag = 0;
5061 
5062     /* reset channel HW */
5063     ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000001);
5064     DELAY(1000);
5065     ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000001);
5066     DELAY(10000);
5067 
5068     /* poll for channel ready */
5069     for (timeout = 0; timeout < 1000; timeout++) {
5070         if ((status = ATA_INL(ctlr->r_res2, 0x1000 + offset)) & 0x00040000)
5071             break;
5072         DELAY(1000);
5073     }
5074     if (timeout >= 1000) {
5075 	device_printf(ch->dev, "channel HW reset timeout reset failure\n");
5076 	ch->devices = 0;
5077 	goto finish;
5078     }
5079     if (bootverbose)
5080 	device_printf(ch->dev, "channel HW reset time=%dms\n", timeout * 1);
5081 
5082     /* reset phy */
5083     if (!ata_sata_phy_reset(dev)) {
5084 	if (bootverbose)
5085 	    device_printf(ch->dev, "phy reset found no device\n");
5086 	ch->devices = 0;
5087 	goto finish;
5088     }
5089 
5090     /* get a piece of the workspace for a soft reset request */
5091     prb = (struct ata_siiprb_command *)
5092 	(ch->dma->work + (sizeof(struct ata_siiprb_command) * tag));
5093     bzero(prb, sizeof(struct ata_siiprb_command));
5094     prb->control = htole16(0x0080);
5095 
5096     /* activate the soft reset prb */
5097     prb_bus = ch->dma->work_bus + (sizeof(struct ata_siiprb_command) * tag);
5098     ATA_OUTL(ctlr->r_res2,
5099 	     0x1c00 + offset + (tag * sizeof(u_int64_t)), prb_bus);
5100     ATA_OUTL(ctlr->r_res2,
5101 	     0x1c04 + offset + (tag * sizeof(u_int64_t)), prb_bus>>32);
5102 
5103     /* poll for channel ready */
5104     for (timeout = 0; timeout < 1000; timeout++) {
5105         DELAY(1000);
5106         if ((status = ATA_INL(ctlr->r_res2, 0x1008 + offset)) & 0x00010000)
5107             break;
5108     }
5109     if (timeout >= 1000) {
5110 	device_printf(ch->dev, "reset timeout - no device found\n");
5111 	ch->devices = 0;
5112 	goto finish;
5113     }
5114     if (bootverbose)
5115 	device_printf(ch->dev, "soft reset exec time=%dms status=%08x\n",
5116 			timeout, status);
5117 
5118     /* find out whats there */
5119     prb = (struct ata_siiprb_command *)
5120 	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + (tag << 7) + offset);
5121     signature =
5122 	prb->fis[12]|(prb->fis[4]<<8)|(prb->fis[5]<<16)|(prb->fis[6]<<24);
5123     if (bootverbose)
5124 	device_printf(ch->dev, "signature=%08x\n", signature);
5125     switch (signature) {
5126     case 0xeb140101:
5127 	ch->devices = ATA_ATAPI_MASTER;
5128 	device_printf(ch->dev, "SATA ATAPI devices not supported yet\n");
5129 	ch->devices = 0;
5130 	break;
5131     case 0x96690101:
5132 	ch->devices = ATA_PORTMULTIPLIER;
5133 	device_printf(ch->dev, "Portmultipliers not supported yet\n");
5134 	ch->devices = 0;
5135 	break;
5136     case 0x00000101:
5137 	ch->devices = ATA_ATA_MASTER;
5138 	break;
5139     default:
5140 	ch->devices = 0;
5141     }
5142 
5143 finish:
5144     /* clear interrupt(s) */
5145     ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x000008ff);
5146 
5147     /* require explicit interrupt ack */
5148     ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000008);
5149 
5150     /* 64bit mode */
5151     ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000400);
5152 
5153     /* enable interrupts wanted */
5154     ATA_OUTL(ctlr->r_res2, 0x1010 + offset, 0x000000ff);
5155 }
5156 
5157 static void
5158 ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
5159 {
5160     struct ata_dmasetprd_args *args = xsc;
5161     struct ata_siiprb_dma_prdentry *prd = args->dmatab;
5162     int i;
5163 
5164     if ((args->error = error))
5165 	return;
5166 
5167     for (i = 0; i < nsegs; i++) {
5168 	prd[i].addr = htole64(segs[i].ds_addr);
5169 	prd[i].count = htole32(segs[i].ds_len);
5170     }
5171     prd[i - 1].control = htole32(ATA_DMA_EOT);
5172 }
5173 
5174 static void
5175 ata_siiprb_dmainit(device_t dev)
5176 {
5177     struct ata_channel *ch = device_get_softc(dev);
5178 
5179     ata_dmainit(dev);
5180     if (ch->dma) {
5181 	/* note start and stop are not used here */
5182 	ch->dma->setprd = ata_siiprb_dmasetprd;
5183 	ch->dma->max_address = BUS_SPACE_MAXADDR;
5184     }
5185 }
5186 
5187 
5188 /*
5189  * Silicon Integrated Systems Corp. (SiS) chipset support functions
5190  */
5191 int
5192 ata_sis_ident(device_t dev)
5193 {
5194     struct ata_pci_controller *ctlr = device_get_softc(dev);
5195     struct ata_chip_id *idx;
5196     static struct ata_chip_id ids[] =
5197     {{ ATA_SIS182,  0x00, SISSATA,   0, ATA_SA150, "182" }, /* south */
5198      { ATA_SIS181,  0x00, SISSATA,   0, ATA_SA150, "181" }, /* south */
5199      { ATA_SIS180,  0x00, SISSATA,   0, ATA_SA150, "180" }, /* south */
5200      { ATA_SIS965,  0x00, SIS133NEW, 0, ATA_UDMA6, "965" }, /* south */
5201      { ATA_SIS964,  0x00, SIS133NEW, 0, ATA_UDMA6, "964" }, /* south */
5202      { ATA_SIS963,  0x00, SIS133NEW, 0, ATA_UDMA6, "963" }, /* south */
5203      { ATA_SIS962,  0x00, SIS133NEW, 0, ATA_UDMA6, "962" }, /* south */
5204 
5205      { ATA_SIS745,  0x00, SIS100NEW, 0, ATA_UDMA5, "745" }, /* 1chip */
5206      { ATA_SIS735,  0x00, SIS100NEW, 0, ATA_UDMA5, "735" }, /* 1chip */
5207      { ATA_SIS733,  0x00, SIS100NEW, 0, ATA_UDMA5, "733" }, /* 1chip */
5208      { ATA_SIS730,  0x00, SIS100OLD, 0, ATA_UDMA5, "730" }, /* 1chip */
5209 
5210      { ATA_SIS635,  0x00, SIS100NEW, 0, ATA_UDMA5, "635" }, /* 1chip */
5211      { ATA_SIS633,  0x00, SIS100NEW, 0, ATA_UDMA5, "633" }, /* unknown */
5212      { ATA_SIS630,  0x30, SIS100OLD, 0, ATA_UDMA5, "630S"}, /* 1chip */
5213      { ATA_SIS630,  0x00, SIS66,     0, ATA_UDMA4, "630" }, /* 1chip */
5214      { ATA_SIS620,  0x00, SIS66,     0, ATA_UDMA4, "620" }, /* 1chip */
5215 
5216      { ATA_SIS550,  0x00, SIS66,     0, ATA_UDMA5, "550" },
5217      { ATA_SIS540,  0x00, SIS66,     0, ATA_UDMA4, "540" },
5218      { ATA_SIS530,  0x00, SIS66,     0, ATA_UDMA4, "530" },
5219 
5220      { ATA_SIS5513, 0xc2, SIS33,     1, ATA_UDMA2, "5513" },
5221      { ATA_SIS5513, 0x00, SIS33,     1, ATA_WDMA2, "5513" },
5222      { 0, 0, 0, 0, 0, 0 }};
5223     char buffer[64];
5224     int found = 0;
5225 
5226     if (!(idx = ata_find_chip(dev, ids, -pci_get_slot(dev))))
5227 	return ENXIO;
5228 
5229     if (idx->cfg2 && !found) {
5230 	u_int8_t reg57 = pci_read_config(dev, 0x57, 1);
5231 
5232 	pci_write_config(dev, 0x57, (reg57 & 0x7f), 1);
5233 	if (pci_read_config(dev, PCIR_DEVVENDOR, 4) == ATA_SIS5518) {
5234 	    found = 1;
5235 	    idx->cfg1 = SIS133NEW;
5236 	    idx->max_dma = ATA_UDMA6;
5237 	    ksprintf(buffer, "SiS 962/963 %s controller",
5238 		    ata_mode2str(idx->max_dma));
5239 	}
5240 	pci_write_config(dev, 0x57, reg57, 1);
5241     }
5242     if (idx->cfg2 && !found) {
5243 	u_int8_t reg4a = pci_read_config(dev, 0x4a, 1);
5244 
5245 	pci_write_config(dev, 0x4a, (reg4a | 0x10), 1);
5246 	if (pci_read_config(dev, PCIR_DEVVENDOR, 4) == ATA_SIS5517) {
5247 	    struct ata_chip_id id[] =
5248 		{{ ATA_SISSOUTH, 0x10, 0, 0, 0, "" }, { 0, 0, 0, 0, 0, 0 }};
5249 
5250 	    found = 1;
5251 	    if (ata_find_chip(dev, id, pci_get_slot(dev))) {
5252 		idx->cfg1 = SIS133OLD;
5253 		idx->max_dma = ATA_UDMA6;
5254 	    }
5255 	    else {
5256 		idx->cfg1 = SIS100NEW;
5257 		idx->max_dma = ATA_UDMA5;
5258 	    }
5259 	    ksprintf(buffer, "SiS 961 %s controller",ata_mode2str(idx->max_dma));
5260 	}
5261 	pci_write_config(dev, 0x4a, reg4a, 1);
5262     }
5263     if (!found)
5264 	ksprintf(buffer,"SiS %s %s controller",
5265 		idx->text, ata_mode2str(idx->max_dma));
5266 
5267     device_set_desc_copy(dev, buffer);
5268     ctlr->chip = idx;
5269     ctlr->chipinit = ata_sis_chipinit;
5270     return 0;
5271 }
5272 
5273 static int
5274 ata_sis_chipinit(device_t dev)
5275 {
5276     struct ata_pci_controller *ctlr = device_get_softc(dev);
5277 
5278     if (ata_setup_interrupt(dev))
5279 	return ENXIO;
5280 
5281     switch (ctlr->chip->cfg1) {
5282     case SIS33:
5283 	break;
5284     case SIS66:
5285     case SIS100OLD:
5286 	pci_write_config(dev, 0x52, pci_read_config(dev, 0x52, 1) & ~0x04, 1);
5287 	break;
5288     case SIS100NEW:
5289     case SIS133OLD:
5290 	pci_write_config(dev, 0x49, pci_read_config(dev, 0x49, 1) & ~0x01, 1);
5291 	break;
5292     case SIS133NEW:
5293 	pci_write_config(dev, 0x50, pci_read_config(dev, 0x50, 2) | 0x0008, 2);
5294 	pci_write_config(dev, 0x52, pci_read_config(dev, 0x52, 2) | 0x0008, 2);
5295 	break;
5296     case SISSATA:
5297 	ctlr->r_type2 = SYS_RES_IOPORT;
5298 	ctlr->r_rid2 = PCIR_BAR(5);
5299 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
5300 						   &ctlr->r_rid2, RF_ACTIVE))) {
5301 	    ctlr->allocate = ata_sis_allocate;
5302 	    ctlr->reset = ata_sis_reset;
5303 
5304 	    /* enable PCI interrupt */
5305 	    pci_write_config(dev, PCIR_COMMAND,
5306 			     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400,2);
5307 	}
5308 	ctlr->setmode = ata_sata_setmode;
5309 	return 0;
5310     default:
5311 	ata_teardown_interrupt(dev);
5312 	return ENXIO;
5313     }
5314     ctlr->setmode = ata_sis_setmode;
5315     return 0;
5316 }
5317 
5318 static int
5319 ata_sis_allocate(device_t dev)
5320 {
5321     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
5322     struct ata_channel *ch = device_get_softc(dev);
5323     int offset = ch->unit << ((ctlr->chip->chipid == ATA_SIS182) ? 5 : 6);
5324 
5325     /* setup the usual register normal pci style */
5326     if (ata_pci_allocate(dev))
5327 	return ENXIO;
5328 
5329     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
5330     ch->r_io[ATA_SSTATUS].offset = 0x00 + offset;
5331     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
5332     ch->r_io[ATA_SERROR].offset = 0x04 + offset;
5333     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
5334     ch->r_io[ATA_SCONTROL].offset = 0x08 + offset;
5335     ch->flags |= ATA_NO_SLAVE;
5336 
5337     /* XXX SOS PHY hotplug handling missing in SiS chip ?? */
5338     /* XXX SOS unknown how to enable PHY state change interrupt */
5339     return 0;
5340 }
5341 
5342 static void
5343 ata_sis_reset(device_t dev)
5344 {
5345     if (ata_sata_phy_reset(dev))
5346 	ata_generic_reset(dev);
5347 }
5348 
5349 static void
5350 ata_sis_setmode(device_t dev, int mode)
5351 {
5352     device_t gparent = GRANDPARENT(dev);
5353     struct ata_pci_controller *ctlr = device_get_softc(gparent);
5354     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
5355     struct ata_device *atadev = device_get_softc(dev);
5356     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
5357     int error;
5358 
5359     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
5360 
5361     if (ctlr->chip->cfg1 == SIS133NEW) {
5362 	if (mode > ATA_UDMA2 &&
5363 	    pci_read_config(gparent, ch->unit ? 0x52 : 0x50,2) & 0x8000) {
5364 	    ata_print_cable(dev, "controller");
5365 	    mode = ATA_UDMA2;
5366 	}
5367     }
5368     else {
5369 	if (mode > ATA_UDMA2 &&
5370 	    pci_read_config(gparent, 0x48, 1)&(ch->unit ? 0x20 : 0x10)) {
5371 	    ata_print_cable(dev, "controller");
5372 	    mode = ATA_UDMA2;
5373 	}
5374     }
5375 
5376     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
5377 
5378     if (bootverbose)
5379 	device_printf(dev, "%ssetting %s on %s chip\n",
5380 		      (error) ? "FAILURE " : "",
5381 		      ata_mode2str(mode), ctlr->chip->text);
5382     if (!error) {
5383 	switch (ctlr->chip->cfg1) {
5384 	case SIS133NEW: {
5385 	    u_int32_t timings[] =
5386 		{ 0x28269008, 0x0c266008, 0x04263008, 0x0c0a3008, 0x05093008,
5387 		  0x22196008, 0x0c0a3008, 0x05093008, 0x050939fc, 0x050936ac,
5388 		  0x0509347c, 0x0509325c, 0x0509323c, 0x0509322c, 0x0509321c};
5389 	    u_int32_t reg;
5390 
5391 	    reg = (pci_read_config(gparent, 0x57, 1)&0x40?0x70:0x40)+(devno<<2);
5392 	    pci_write_config(gparent, reg, timings[ata_mode2idx(mode)], 4);
5393 	    break;
5394 	    }
5395 	case SIS133OLD: {
5396 	    u_int16_t timings[] =
5397 	     { 0x00cb, 0x0067, 0x0044, 0x0033, 0x0031, 0x0044, 0x0033, 0x0031,
5398 	       0x8f31, 0x8a31, 0x8731, 0x8531, 0x8331, 0x8231, 0x8131 };
5399 
5400 	    u_int16_t reg = 0x40 + (devno << 1);
5401 
5402 	    pci_write_config(gparent, reg, timings[ata_mode2idx(mode)], 2);
5403 	    break;
5404 	    }
5405 	case SIS100NEW: {
5406 	    u_int16_t timings[] =
5407 		{ 0x00cb, 0x0067, 0x0044, 0x0033, 0x0031, 0x0044, 0x0033,
5408 		  0x0031, 0x8b31, 0x8731, 0x8531, 0x8431, 0x8231, 0x8131 };
5409 	    u_int16_t reg = 0x40 + (devno << 1);
5410 
5411 	    pci_write_config(gparent, reg, timings[ata_mode2idx(mode)], 2);
5412 	    break;
5413 	    }
5414 	case SIS100OLD:
5415 	case SIS66:
5416 	case SIS33: {
5417 	    u_int16_t timings[] =
5418 		{ 0x0c0b, 0x0607, 0x0404, 0x0303, 0x0301, 0x0404, 0x0303,
5419 		  0x0301, 0xf301, 0xd301, 0xb301, 0xa301, 0x9301, 0x8301 };
5420 	    u_int16_t reg = 0x40 + (devno << 1);
5421 
5422 	    pci_write_config(gparent, reg, timings[ata_mode2idx(mode)], 2);
5423 	    break;
5424 	    }
5425 	}
5426 	atadev->mode = mode;
5427     }
5428 }
5429 
5430 
5431 /* VIA Technologies Inc. chipset support functions */
5432 int
5433 ata_via_ident(device_t dev)
5434 {
5435     struct ata_pci_controller *ctlr = device_get_softc(dev);
5436     struct ata_chip_id *idx;
5437     static struct ata_chip_id ids[] =
5438     {{ ATA_VIA82C586, 0x02, VIA33,  0x00,    ATA_UDMA2, "82C586B" },
5439      { ATA_VIA82C586, 0x00, VIA33,  0x00,    ATA_WDMA2, "82C586" },
5440      { ATA_VIA82C596, 0x12, VIA66,  VIACLK,  ATA_UDMA4, "82C596B" },
5441      { ATA_VIA82C596, 0x00, VIA33,  0x00,    ATA_UDMA2, "82C596" },
5442      { ATA_VIA82C686, 0x40, VIA100, VIABUG,  ATA_UDMA5, "82C686B"},
5443      { ATA_VIA82C686, 0x10, VIA66,  VIACLK,  ATA_UDMA4, "82C686A" },
5444      { ATA_VIA82C686, 0x00, VIA33,  0x00,    ATA_UDMA2, "82C686" },
5445      { ATA_VIA8231,   0x00, VIA100, VIABUG,  ATA_UDMA5, "8231" },
5446      { ATA_VIA8233,   0x00, VIA100, 0x00,    ATA_UDMA5, "8233" },
5447      { ATA_VIA8233C,  0x00, VIA100, 0x00,    ATA_UDMA5, "8233C" },
5448      { ATA_VIA8233A,  0x00, VIA133, 0x00,    ATA_UDMA6, "8233A" },
5449      { ATA_VIA8235,   0x00, VIA133, 0x00,    ATA_UDMA6, "8235" },
5450      { ATA_VIA8237,   0x00, VIA133, 0x00,    ATA_UDMA6, "8237" },
5451      { ATA_VIA8237A,  0x00, VIA133, 0x00,    ATA_UDMA6, "8237A" },
5452      { ATA_VIA8251,   0x00, VIA133, 0x00,    ATA_UDMA6, "8251" },
5453      { 0, 0, 0, 0, 0, 0 }};
5454     static struct ata_chip_id new_ids[] =
5455     {{ ATA_VIA6410,   0x00, 0,      0x00,    ATA_UDMA6, "6410" },
5456      { ATA_VIA6420,   0x00, 7,      0x00,    ATA_SA150, "6420" },
5457      { ATA_VIA6421,   0x00, 6,      VIABAR,  ATA_SA150, "6421" },
5458      { ATA_VIA8237A,  0x00, 7,      0x00,    ATA_SA150, "8237A" },
5459      { ATA_VIA8237S,  0x00, 7,      0x00,    ATA_SA150, "8237S" },
5460      { ATA_VIA8251,   0x00, 0,      VIAAHCI, ATA_SA300, "8251" },
5461      { 0, 0, 0, 0, 0, 0 }};
5462     char buffer[64];
5463 
5464     if (pci_get_devid(dev) == ATA_VIA82C571) {
5465 	if (!(idx = ata_find_chip(dev, ids, -99)))
5466 	    return ENXIO;
5467     }
5468     else {
5469 	if (!(idx = ata_match_chip(dev, new_ids)))
5470 	    return ENXIO;
5471     }
5472 
5473     ksprintf(buffer, "VIA %s %s controller",
5474 	    idx->text, ata_mode2str(idx->max_dma));
5475     device_set_desc_copy(dev, buffer);
5476     ctlr->chip = idx;
5477     ctlr->chipinit = ata_via_chipinit;
5478     return 0;
5479 }
5480 
5481 static int
5482 ata_via_chipinit(device_t dev)
5483 {
5484     struct ata_pci_controller *ctlr = device_get_softc(dev);
5485 
5486     if (ata_setup_interrupt(dev))
5487 	return ENXIO;
5488 
5489     if (ctlr->chip->max_dma >= ATA_SA150) {
5490 	/* do we have AHCI capability ? */
5491 	if ((ctlr->chip->cfg2 == VIAAHCI) && ata_ahci_chipinit(dev) != ENXIO)
5492 	    return 0;
5493 
5494 	ctlr->r_type2 = SYS_RES_IOPORT;
5495 	ctlr->r_rid2 = PCIR_BAR(5);
5496 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
5497 						   &ctlr->r_rid2, RF_ACTIVE))) {
5498 	    ctlr->allocate = ata_via_allocate;
5499 	    ctlr->reset = ata_via_reset;
5500 
5501 	    /* enable PCI interrupt */
5502 	    pci_write_config(dev, PCIR_COMMAND,
5503 			     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400,2);
5504 	}
5505 
5506 	if (ctlr->chip->cfg2 & VIABAR) {
5507 	    ctlr->channels = 3;
5508 	    ctlr->setmode = ata_via_setmode;
5509 	}
5510 	else
5511 	    ctlr->setmode = ata_sata_setmode;
5512 	return 0;
5513     }
5514 
5515     /* prepare for ATA-66 on the 82C686a and 82C596b */
5516     if (ctlr->chip->cfg2 & VIACLK)
5517 	pci_write_config(dev, 0x50, 0x030b030b, 4);
5518 
5519     /* the southbridge might need the data corruption fix */
5520     if (ctlr->chip->cfg2 & VIABUG)
5521 	ata_via_southbridge_fixup(dev);
5522 
5523     /* set fifo configuration half'n'half */
5524     pci_write_config(dev, 0x43,
5525 		     (pci_read_config(dev, 0x43, 1) & 0x90) | 0x2a, 1);
5526 
5527     /* set status register read retry */
5528     pci_write_config(dev, 0x44, pci_read_config(dev, 0x44, 1) | 0x08, 1);
5529 
5530     /* set DMA read & end-of-sector fifo flush */
5531     pci_write_config(dev, 0x46,
5532 		     (pci_read_config(dev, 0x46, 1) & 0x0c) | 0xf0, 1);
5533 
5534     /* set sector size */
5535     pci_write_config(dev, 0x60, DEV_BSIZE, 2);
5536     pci_write_config(dev, 0x68, DEV_BSIZE, 2);
5537 
5538     ctlr->setmode = ata_via_family_setmode;
5539     return 0;
5540 }
5541 
5542 static int
5543 ata_via_allocate(device_t dev)
5544 {
5545     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
5546     struct ata_channel *ch = device_get_softc(dev);
5547 
5548     /* newer SATA chips has resources in one BAR for each channel */
5549     if (ctlr->chip->cfg2 & VIABAR) {
5550 	struct resource *r_io;
5551 	int i, rid;
5552 
5553 	rid = PCIR_BAR(ch->unit);
5554 	if (!(r_io = bus_alloc_resource_any(device_get_parent(dev),
5555 					    SYS_RES_IOPORT,
5556 					    &rid, RF_ACTIVE)))
5557 	    return ENXIO;
5558 
5559 	for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
5560 	    ch->r_io[i].res = r_io;
5561 	    ch->r_io[i].offset = i;
5562 	}
5563 	ch->r_io[ATA_CONTROL].res = r_io;
5564 	ch->r_io[ATA_CONTROL].offset = 2 + ATA_IOSIZE;
5565 	ch->r_io[ATA_IDX_ADDR].res = r_io;
5566 	ata_default_registers(dev);
5567 	for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
5568 	    ch->r_io[i].res = ctlr->r_res1;
5569 	    ch->r_io[i].offset = (i - ATA_BMCMD_PORT)+(ch->unit * ATA_BMIOSIZE);
5570 	}
5571 	ata_pci_hw(dev);
5572 	if (ch->unit >= 2)
5573 	    return 0;
5574     }
5575     else {
5576 	/* setup the usual register normal pci style */
5577 	if (ata_pci_allocate(dev))
5578 	    return ENXIO;
5579     }
5580 
5581     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
5582     ch->r_io[ATA_SSTATUS].offset = (ch->unit << ctlr->chip->cfg1);
5583     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
5584     ch->r_io[ATA_SERROR].offset = 0x04 + (ch->unit << ctlr->chip->cfg1);
5585     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
5586     ch->r_io[ATA_SCONTROL].offset = 0x08 + (ch->unit << ctlr->chip->cfg1);
5587     ch->flags |= ATA_NO_SLAVE;
5588 
5589     /* XXX SOS PHY hotplug handling missing in VIA chip ?? */
5590     /* XXX SOS unknown how to enable PHY state change interrupt */
5591     return 0;
5592 }
5593 
5594 static void
5595 ata_via_reset(device_t dev)
5596 {
5597     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
5598     struct ata_channel *ch = device_get_softc(dev);
5599 
5600     if ((ctlr->chip->cfg2 & VIABAR) && (ch->unit > 1))
5601 	ata_generic_reset(dev);
5602     else
5603 	if (ata_sata_phy_reset(dev))
5604 	    ata_generic_reset(dev);
5605 }
5606 
5607 static void
5608 ata_via_setmode(device_t dev, int mode)
5609 {
5610     device_t gparent = GRANDPARENT(dev);
5611     struct ata_pci_controller *ctlr = device_get_softc(gparent);
5612     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
5613     struct ata_device *atadev = device_get_softc(dev);
5614     int error;
5615 
5616     if ((ctlr->chip->cfg2 & VIABAR) && (ch->unit > 1)) {
5617 	u_int8_t pio_timings[] = { 0xa8, 0x65, 0x65, 0x32, 0x20,
5618 				   0x65, 0x32, 0x20,
5619 				   0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
5620 	u_int8_t dma_timings[] = { 0xee, 0xe8, 0xe6, 0xe4, 0xe2, 0xe1, 0xe0 };
5621 
5622 	mode = ata_check_80pin(dev, ata_limit_mode(dev, mode, ATA_UDMA6));
5623 	error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
5624 	if (bootverbose)
5625 	    device_printf(dev, "%ssetting %s on %s chip\n",
5626 			  (error) ? "FAILURE " : "", ata_mode2str(mode),
5627 			  ctlr->chip->text);
5628 	if (!error) {
5629 	    pci_write_config(gparent, 0xab, pio_timings[ata_mode2idx(mode)], 1);
5630 	    if (mode >= ATA_UDMA0)
5631 		pci_write_config(gparent, 0xb3,
5632 				 dma_timings[mode & ATA_MODE_MASK], 1);
5633 	    atadev->mode = mode;
5634 	}
5635     }
5636     else
5637 	ata_sata_setmode(dev, mode);
5638 }
5639 
5640 static void
5641 ata_via_southbridge_fixup(device_t dev)
5642 {
5643     device_t *children;
5644     int nchildren, i;
5645 
5646     if (device_get_children(device_get_parent(dev), &children, &nchildren))
5647 	return;
5648 
5649     for (i = 0; i < nchildren; i++) {
5650 	if (pci_get_devid(children[i]) == ATA_VIA8363 ||
5651 	    pci_get_devid(children[i]) == ATA_VIA8371 ||
5652 	    pci_get_devid(children[i]) == ATA_VIA8662 ||
5653 	    pci_get_devid(children[i]) == ATA_VIA8361) {
5654 	    u_int8_t reg76 = pci_read_config(children[i], 0x76, 1);
5655 
5656 	    if ((reg76 & 0xf0) != 0xd0) {
5657 		device_printf(dev,
5658 		"Correcting VIA config for southbridge data corruption bug\n");
5659 		pci_write_config(children[i], 0x75, 0x80, 1);
5660 		pci_write_config(children[i], 0x76, (reg76 & 0x0f) | 0xd0, 1);
5661 	    }
5662 	    break;
5663 	}
5664     }
5665     kfree(children, M_TEMP);
5666 }
5667 
5668 
5669 /* common code for VIA, AMD & nVidia */
5670 static void
5671 ata_via_family_setmode(device_t dev, int mode)
5672 {
5673     device_t gparent = GRANDPARENT(dev);
5674     struct ata_pci_controller *ctlr = device_get_softc(gparent);
5675     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
5676     struct ata_device *atadev = device_get_softc(dev);
5677     u_int8_t timings[] = { 0xa8, 0x65, 0x42, 0x22, 0x20, 0x42, 0x22, 0x20,
5678 			   0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
5679     int modes[][7] = {
5680 	{ 0xc2, 0xc1, 0xc0, 0x00, 0x00, 0x00, 0x00 },   /* VIA ATA33 */
5681 	{ 0xee, 0xec, 0xea, 0xe9, 0xe8, 0x00, 0x00 },   /* VIA ATA66 */
5682 	{ 0xf7, 0xf6, 0xf4, 0xf2, 0xf1, 0xf0, 0x00 },   /* VIA ATA100 */
5683 	{ 0xf7, 0xf7, 0xf6, 0xf4, 0xf2, 0xf1, 0xf0 },   /* VIA ATA133 */
5684 	{ 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, 0xc7 }};  /* AMD/nVIDIA */
5685     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
5686     int reg = 0x53 - devno;
5687     int error;
5688 
5689     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
5690 
5691     if (ctlr->chip->cfg2 & AMDCABLE) {
5692 	if (mode > ATA_UDMA2 &&
5693 	    !(pci_read_config(gparent, 0x42, 1) & (1 << devno))) {
5694 	    ata_print_cable(dev, "controller");
5695 	    mode = ATA_UDMA2;
5696 	}
5697     }
5698     else
5699 	mode = ata_check_80pin(dev, mode);
5700 
5701     if (ctlr->chip->cfg2 & NVIDIA)
5702 	reg += 0x10;
5703 
5704     if (ctlr->chip->cfg1 != VIA133)
5705 	pci_write_config(gparent, reg - 0x08, timings[ata_mode2idx(mode)], 1);
5706 
5707     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
5708 
5709     if (bootverbose)
5710 	device_printf(dev, "%ssetting %s on %s chip\n",
5711 		      (error) ? "FAILURE " : "", ata_mode2str(mode),
5712 		      ctlr->chip->text);
5713     if (!error) {
5714 	if (mode >= ATA_UDMA0)
5715 	    pci_write_config(gparent, reg,
5716 			     modes[ctlr->chip->cfg1][mode & ATA_MODE_MASK], 1);
5717 	else
5718 	    pci_write_config(gparent, reg, 0x8b, 1);
5719 	atadev->mode = mode;
5720     }
5721 }
5722 
5723 
5724 /* misc functions */
5725 static struct ata_chip_id *
5726 ata_match_chip(device_t dev, struct ata_chip_id *index)
5727 {
5728     while (index->chipid != 0) {
5729 	if (pci_get_devid(dev) == index->chipid &&
5730 	    pci_get_revid(dev) >= index->chiprev)
5731 	    return index;
5732 	index++;
5733     }
5734     return NULL;
5735 }
5736 
5737 static struct ata_chip_id *
5738 ata_find_chip(device_t dev, struct ata_chip_id *index, int slot)
5739 {
5740     device_t *children;
5741     int nchildren, i;
5742 
5743     if (device_get_children(device_get_parent(dev), &children, &nchildren))
5744 	return 0;
5745 
5746     while (index->chipid != 0) {
5747 	for (i = 0; i < nchildren; i++) {
5748 	    if (((slot >= 0 && pci_get_slot(children[i]) == slot) ||
5749 		 (slot < 0 && pci_get_slot(children[i]) <= -slot)) &&
5750 		pci_get_devid(children[i]) == index->chipid &&
5751 		pci_get_revid(children[i]) >= index->chiprev) {
5752 		kfree(children, M_TEMP);
5753 		return index;
5754 	    }
5755 	}
5756 	index++;
5757     }
5758     kfree(children, M_TEMP);
5759     return NULL;
5760 }
5761 
5762 static int
5763 ata_setup_interrupt(device_t dev)
5764 {
5765     struct ata_pci_controller *ctlr = device_get_softc(dev);
5766     int rid = ATA_IRQ_RID;
5767 
5768     if (!ctlr->legacy) {
5769 	if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
5770 						   RF_SHAREABLE | RF_ACTIVE))) {
5771 	    device_printf(dev, "unable to map interrupt\n");
5772 	    return ENXIO;
5773 	}
5774 	if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS,
5775 			    ata_generic_intr, ctlr, &ctlr->handle, NULL))) {
5776 	    device_printf(dev, "unable to setup interrupt\n");
5777 	    bus_release_resource(dev, SYS_RES_IRQ, rid, ctlr->r_irq);
5778 	    ctlr->r_irq = 0;
5779 	    return ENXIO;
5780 	}
5781     }
5782     return 0;
5783 }
5784 
5785 static void
5786 ata_teardown_interrupt(device_t dev)
5787 {
5788     struct ata_pci_controller *ctlr = device_get_softc(dev);
5789 
5790     if (!ctlr->legacy) {
5791 	if (ctlr->r_irq) {
5792 	    bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle);
5793 	    bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ctlr->r_irq);
5794 	    ctlr->r_irq = 0;
5795 	}
5796     }
5797 }
5798 
5799 struct ata_serialize {
5800     struct spinlock     locked_mtx;
5801     int                 locked_ch;
5802     int                 restart_ch;
5803 };
5804 
5805 static int
5806 ata_serialize(device_t dev, int flags)
5807 {
5808     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
5809     struct ata_channel *ch = device_get_softc(dev);
5810     struct ata_serialize *serial;
5811     static int inited = 0;
5812     int res;
5813 
5814     if (!inited) {
5815 	serial = kmalloc(sizeof(struct ata_serialize),
5816 			      M_TEMP, M_INTWAIT | M_ZERO);
5817 	spin_init(&serial->locked_mtx, "ataserialize");
5818 	serial->locked_ch = -1;
5819 	serial->restart_ch = -1;
5820 	device_set_ivars(ctlr->dev, serial);
5821 	inited = 1;
5822     }
5823     else
5824 	serial = device_get_ivars(ctlr->dev);
5825 
5826     spin_lock(&serial->locked_mtx);
5827     switch (flags) {
5828     case ATA_LF_LOCK:
5829 	if (serial->locked_ch == -1)
5830 	    serial->locked_ch = ch->unit;
5831 	if (serial->locked_ch != ch->unit)
5832 	    serial->restart_ch = ch->unit;
5833 	break;
5834 
5835     case ATA_LF_UNLOCK:
5836 	if (serial->locked_ch == ch->unit) {
5837 	    serial->locked_ch = -1;
5838 	    if (serial->restart_ch != -1) {
5839 		if ((ch = ctlr->interrupt[serial->restart_ch].argument)) {
5840 		    serial->restart_ch = -1;
5841 		    spin_unlock(&serial->locked_mtx);
5842 		    ata_start(ch->dev);
5843 		    return -1;
5844 		}
5845 	    }
5846 	}
5847 	break;
5848 
5849     case ATA_LF_WHICH:
5850 	break;
5851     }
5852     res = serial->locked_ch;
5853     spin_unlock(&serial->locked_mtx);
5854     return res;
5855 }
5856 
5857 static void
5858 ata_print_cable(device_t dev, u_int8_t *who)
5859 {
5860     device_printf(dev,
5861 		  "DMA limited to UDMA33, %s found non-ATA66 cable\n", who);
5862 }
5863 
5864 static int
5865 ata_atapi(device_t dev)
5866 {
5867     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
5868     struct ata_device *atadev = device_get_softc(dev);
5869 
5870     return ((atadev->unit == ATA_MASTER && ch->devices & ATA_ATAPI_MASTER) ||
5871 	    (atadev->unit == ATA_SLAVE && ch->devices & ATA_ATAPI_SLAVE));
5872 }
5873 
5874 static int
5875 ata_check_80pin(device_t dev, int mode)
5876 {
5877     struct ata_device *atadev = device_get_softc(dev);
5878 
5879     if (mode > ATA_UDMA2 && !(atadev->param.hwres & ATA_CABLE_ID)) {
5880 	ata_print_cable(dev, "device");
5881 	mode = ATA_UDMA2;
5882     }
5883     return mode;
5884 }
5885 
5886 static int
5887 ata_mode2idx(int mode)
5888 {
5889     if ((mode & ATA_DMA_MASK) == ATA_UDMA0)
5890 	 return (mode & ATA_MODE_MASK) + 8;
5891     if ((mode & ATA_DMA_MASK) == ATA_WDMA0)
5892 	 return (mode & ATA_MODE_MASK) + 5;
5893     return (mode & ATA_MODE_MASK) - ATA_PIO0;
5894 }
5895