xref: /dragonfly/sys/dev/disk/nata/ata-chipset.c (revision 6b5c5d0d)
1 /*-
2  * Copyright (c) 1998 - 2006 S�ren Schmidt <sos@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer,
10  *    without modification, immediately at the beginning of the file.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD: src/sys/dev/ata/ata-chipset.c,v 1.196 2007/04/08 19:18:51 sos Exp $
27  * $DragonFly: src/sys/dev/disk/nata/ata-chipset.c,v 1.12 2008/01/01 12:16:40 swildner Exp $
28  */
29 
30 #include "opt_ata.h"
31 
32 #include <sys/param.h>
33 #include <sys/bus.h>
34 #include <sys/bus_dma.h>
35 #include <sys/bus_resource.h>
36 #include <sys/callout.h>
37 #include <sys/endian.h>
38 #include <sys/libkern.h>
39 #include <sys/lock.h>		/* for {get,rel}_mplock() */
40 #include <sys/malloc.h>
41 #include <sys/nata.h>
42 #include <sys/queue.h>
43 #include <sys/rman.h>
44 #include <sys/spinlock.h>
45 #include <sys/spinlock2.h>
46 #include <sys/systm.h>
47 #include <sys/taskqueue.h>
48 
49 #include <machine/bus_dma.h>
50 
51 #include <bus/pci/pcireg.h>
52 #include <bus/pci/pcivar.h>
53 
54 #include "ata-all.h"
55 #include "ata-pci.h"
56 #include "ata_if.h"
57 
58 /* local prototypes */
59 /* ata-chipset.c */
60 static int ata_generic_chipinit(device_t dev);
61 static void ata_generic_intr(void *data);
62 static void ata_generic_setmode(device_t dev, int mode);
63 static void ata_sata_phy_check_events(device_t dev);
64 static void ata_sata_phy_event(void *context, int dummy);
65 static int ata_sata_phy_reset(device_t dev);
66 static int ata_sata_connect(struct ata_channel *ch);
67 static void ata_sata_setmode(device_t dev, int mode);
68 static int ata_request2fis_h2d(struct ata_request *request, u_int8_t *fis);
69 static int ata_ahci_chipinit(device_t dev);
70 static int ata_ahci_allocate(device_t dev);
71 static int ata_ahci_status(device_t dev);
72 static int ata_ahci_begin_transaction(struct ata_request *request);
73 static int ata_ahci_end_transaction(struct ata_request *request);
74 static void ata_ahci_reset(device_t dev);
75 static void ata_ahci_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
76 static void ata_ahci_dmainit(device_t dev);
77 static int ata_ahci_setup_fis(struct ata_ahci_cmd_tab *ctp, struct ata_request *request);
78 static int ata_genahci_chipinit(device_t dev);
79 static int ata_acard_chipinit(device_t dev);
80 static int ata_acard_allocate(device_t dev);
81 static int ata_acard_status(device_t dev);
82 static void ata_acard_850_setmode(device_t dev, int mode);
83 static void ata_acard_86X_setmode(device_t dev, int mode);
84 static int ata_ali_chipinit(device_t dev);
85 static int ata_ali_allocate(device_t dev);
86 static int ata_ali_sata_allocate(device_t dev);
87 static void ata_ali_reset(device_t dev);
88 static void ata_ali_setmode(device_t dev, int mode);
89 static int ata_amd_chipinit(device_t dev);
90 static int ata_ati_chipinit(device_t dev);
91 static void ata_ati_setmode(device_t dev, int mode);
92 static int ata_cyrix_chipinit(device_t dev);
93 static void ata_cyrix_setmode(device_t dev, int mode);
94 static int ata_cypress_chipinit(device_t dev);
95 static void ata_cypress_setmode(device_t dev, int mode);
96 static int ata_highpoint_chipinit(device_t dev);
97 static int ata_highpoint_allocate(device_t dev);
98 static void ata_highpoint_setmode(device_t dev, int mode);
99 static int ata_highpoint_check_80pin(device_t dev, int mode);
100 static int ata_intel_chipinit(device_t dev);
101 static int ata_intel_allocate(device_t dev);
102 static void ata_intel_reset(device_t dev);
103 static void ata_intel_old_setmode(device_t dev, int mode);
104 static void ata_intel_new_setmode(device_t dev, int mode);
105 static int ata_intel_31244_allocate(device_t dev);
106 static int ata_intel_31244_status(device_t dev);
107 static int ata_intel_31244_command(struct ata_request *request);
108 static void ata_intel_31244_reset(device_t dev);
109 static int ata_ite_chipinit(device_t dev);
110 static void ata_ite_setmode(device_t dev, int mode);
111 static int ata_jmicron_chipinit(device_t dev);
112 static int ata_jmicron_allocate(device_t dev);
113 static void ata_jmicron_reset(device_t dev);
114 static void ata_jmicron_dmainit(device_t dev);
115 static void ata_jmicron_setmode(device_t dev, int mode);
116 static int ata_marvell_pata_chipinit(device_t dev);
117 static int ata_marvell_pata_allocate(device_t dev);
118 static void ata_marvell_pata_setmode(device_t dev, int mode);
119 static int ata_marvell_edma_chipinit(device_t dev);
120 static int ata_marvell_edma_allocate(device_t dev);
121 static int ata_marvell_edma_status(device_t dev);
122 static int ata_marvell_edma_begin_transaction(struct ata_request *request);
123 static int ata_marvell_edma_end_transaction(struct ata_request *request);
124 static void ata_marvell_edma_reset(device_t dev);
125 static void ata_marvell_edma_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
126 static void ata_marvell_edma_dmainit(device_t dev);
127 static int ata_national_chipinit(device_t dev);
128 static void ata_national_setmode(device_t dev, int mode);
129 static int ata_netcell_chipinit(device_t dev);
130 static int ata_netcell_allocate(device_t dev);
131 static int ata_nvidia_chipinit(device_t dev);
132 static int ata_nvidia_allocate(device_t dev);
133 static int ata_nvidia_status(device_t dev);
134 static void ata_nvidia_reset(device_t dev);
135 static int ata_promise_chipinit(device_t dev);
136 static int ata_promise_allocate(device_t dev);
137 static int ata_promise_status(device_t dev);
138 static int ata_promise_dmastart(device_t dev);
139 static int ata_promise_dmastop(device_t dev);
140 static void ata_promise_dmareset(device_t dev);
141 static void ata_promise_dmainit(device_t dev);
142 static void ata_promise_setmode(device_t dev, int mode);
143 static int ata_promise_tx2_allocate(device_t dev);
144 static int ata_promise_tx2_status(device_t dev);
145 static int ata_promise_mio_allocate(device_t dev);
146 static void ata_promise_mio_intr(void *data);
147 static int ata_promise_mio_status(device_t dev);
148 static int ata_promise_mio_command(struct ata_request *request);
149 static void ata_promise_mio_reset(device_t dev);
150 static void ata_promise_mio_dmainit(device_t dev);
151 static void ata_promise_mio_setmode(device_t dev, int mode);
152 static void ata_promise_sx4_intr(void *data);
153 static int ata_promise_sx4_command(struct ata_request *request);
154 static int ata_promise_apkt(u_int8_t *bytep, struct ata_request *request);
155 static void ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt);
156 static void ata_promise_next_hpkt(struct ata_pci_controller *ctlr);
157 static int ata_serverworks_chipinit(device_t dev);
158 static int ata_serverworks_allocate(device_t dev);
159 static void ata_serverworks_setmode(device_t dev, int mode);
160 static int ata_sii_chipinit(device_t dev);
161 static int ata_cmd_allocate(device_t dev);
162 static int ata_cmd_status(device_t dev);
163 static void ata_cmd_setmode(device_t dev, int mode);
164 static int ata_sii_allocate(device_t dev);
165 static int ata_sii_status(device_t dev);
166 static void ata_sii_reset(device_t dev);
167 static void ata_sii_setmode(device_t dev, int mode);
168 static int ata_siiprb_allocate(device_t dev);
169 static int ata_siiprb_status(device_t dev);
170 static int ata_siiprb_begin_transaction(struct ata_request *request);
171 static int ata_siiprb_end_transaction(struct ata_request *request);
172 static void ata_siiprb_reset(device_t dev);
173 static void ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
174 static void ata_siiprb_dmainit(device_t dev);
175 static int ata_sis_chipinit(device_t dev);
176 static int ata_sis_allocate(device_t dev);
177 static void ata_sis_reset(device_t dev);
178 static void ata_sis_setmode(device_t dev, int mode);
179 static int ata_via_chipinit(device_t dev);
180 static int ata_via_allocate(device_t dev);
181 static void ata_via_reset(device_t dev);
182 static void ata_via_setmode(device_t dev, int mode);
183 static void ata_via_southbridge_fixup(device_t dev);
184 static void ata_via_family_setmode(device_t dev, int mode);
185 static struct ata_chip_id *ata_match_chip(device_t dev, struct ata_chip_id *index);
186 static struct ata_chip_id *ata_find_chip(device_t dev, struct ata_chip_id *index, int slot);
187 static int ata_setup_interrupt(device_t dev);
188 static int ata_serialize(device_t dev, int flags);
189 static void ata_print_cable(device_t dev, u_int8_t *who);
190 static int ata_atapi(device_t dev);
191 static int ata_check_80pin(device_t dev, int mode);
192 static int ata_mode2idx(int mode);
193 
194 
195 /*
196  * generic ATA support functions
197  */
198 int
199 ata_generic_ident(device_t dev)
200 {
201     struct ata_pci_controller *ctlr = device_get_softc(dev);
202 
203     device_set_desc(dev, "GENERIC ATA controller");
204     ctlr->chipinit = ata_generic_chipinit;
205     return 0;
206 }
207 
208 static int
209 ata_generic_chipinit(device_t dev)
210 {
211     struct ata_pci_controller *ctlr = device_get_softc(dev);
212 
213     if (ata_setup_interrupt(dev))
214 	return ENXIO;
215     ctlr->setmode = ata_generic_setmode;
216     return 0;
217 }
218 
219 static void
220 ata_generic_intr(void *data)
221 {
222     struct ata_pci_controller *ctlr = data;
223     struct ata_channel *ch;
224     int unit;
225 
226     for (unit = 0; unit < ctlr->channels; unit++) {
227 	if ((ch = ctlr->interrupt[unit].argument))
228 	    ctlr->interrupt[unit].function(ch);
229     }
230 }
231 
232 static void
233 ata_generic_setmode(device_t dev, int mode)
234 {
235     struct ata_device *atadev = device_get_softc(dev);
236 
237     mode = ata_limit_mode(dev, mode, ATA_UDMA2);
238     mode = ata_check_80pin(dev, mode);
239     if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
240 	atadev->mode = mode;
241 }
242 
243 
244 /*
245  * SATA support functions
246  */
247 static void
248 ata_sata_phy_check_events(device_t dev)
249 {
250     struct ata_channel *ch = device_get_softc(dev);
251     u_int32_t error = ATA_IDX_INL(ch, ATA_SERROR);
252 
253     /* clear error bits/interrupt */
254     ATA_IDX_OUTL(ch, ATA_SERROR, error);
255 
256     /* do we have any events flagged ? */
257     if (error) {
258 	struct ata_connect_task *tp;
259 	u_int32_t status = ATA_IDX_INL(ch, ATA_SSTATUS);
260 
261 	/* if we have a connection event deal with it */
262 	if ((error & ATA_SE_PHY_CHANGED) &&
263 	    (tp = (struct ata_connect_task *)
264 		  kmalloc(sizeof(struct ata_connect_task),
265 			 M_ATA, M_INTWAIT | M_ZERO))) {
266 
267 	    if (((status & ATA_SS_CONWELL_MASK) == ATA_SS_CONWELL_GEN1) ||
268 		((status & ATA_SS_CONWELL_MASK) == ATA_SS_CONWELL_GEN2)) {
269 		if (bootverbose)
270 		    device_printf(ch->dev, "CONNECT requested\n");
271 		tp->action = ATA_C_ATTACH;
272 	    }
273 	    else {
274 		if (bootverbose)
275 		    device_printf(ch->dev, "DISCONNECT requested\n");
276 		tp->action = ATA_C_DETACH;
277 	    }
278 	    tp->dev = ch->dev;
279 	    TASK_INIT(&tp->task, 0, ata_sata_phy_event, tp);
280 	    taskqueue_enqueue(taskqueue_thread[mycpuid], &tp->task);
281 	}
282     }
283 }
284 
285 static void
286 ata_sata_phy_event(void *context, int dummy)
287 {
288     struct ata_connect_task *tp = (struct ata_connect_task *)context;
289     struct ata_channel *ch = device_get_softc(tp->dev);
290     device_t *children;
291     int nchildren, i;
292 
293     get_mplock();
294     if (tp->action == ATA_C_ATTACH) {
295 	if (bootverbose)
296 	    device_printf(tp->dev, "CONNECTED\n");
297 	ATA_RESET(tp->dev);
298 	ata_identify(tp->dev);
299     }
300     if (tp->action == ATA_C_DETACH) {
301 	if (!device_get_children(tp->dev, &children, &nchildren)) {
302 	    for (i = 0; i < nchildren; i++)
303 		if (children[i])
304 		    device_delete_child(tp->dev, children[i]);
305 	    kfree(children, M_TEMP);
306 	}
307 	spin_lock_wr(&ch->state_mtx);
308 	ch->state = ATA_IDLE;
309 	spin_unlock_wr(&ch->state_mtx);
310 	if (bootverbose)
311 	    device_printf(tp->dev, "DISCONNECTED\n");
312     }
313     rel_mplock();
314     kfree(tp, M_ATA);
315 }
316 
317 static int
318 ata_sata_phy_reset(device_t dev)
319 {
320     struct ata_channel *ch = device_get_softc(dev);
321     int loop, retry;
322 
323     if ((ATA_IDX_INL(ch, ATA_SCONTROL) & ATA_SC_DET_MASK) == ATA_SC_DET_IDLE)
324 	return ata_sata_connect(ch);
325 
326     for (retry = 0; retry < 10; retry++) {
327 	for (loop = 0; loop < 10; loop++) {
328 	    ATA_IDX_OUTL(ch, ATA_SCONTROL, ATA_SC_DET_RESET);
329 	    ata_udelay(100);
330 	    if ((ATA_IDX_INL(ch, ATA_SCONTROL) &
331 		ATA_SC_DET_MASK) == ATA_SC_DET_RESET)
332 		break;
333 	}
334 	ata_udelay(5000);
335 	for (loop = 0; loop < 10; loop++) {
336 	    ATA_IDX_OUTL(ch, ATA_SCONTROL, ATA_SC_DET_IDLE |
337 					   ATA_SC_IPM_DIS_PARTIAL |
338 					   ATA_SC_IPM_DIS_SLUMBER);
339 	    ata_udelay(100);
340 	    if ((ATA_IDX_INL(ch, ATA_SCONTROL) & ATA_SC_DET_MASK) == 0)
341 		return ata_sata_connect(ch);
342 	}
343     }
344     return 0;
345 }
346 
347 static int
348 ata_sata_connect(struct ata_channel *ch)
349 {
350     u_int32_t status;
351     int timeout;
352 
353     /* wait up to 1 second for "connect well" */
354     for (timeout = 0; timeout < 100 ; timeout++) {
355 	status = ATA_IDX_INL(ch, ATA_SSTATUS);
356 	if ((status & ATA_SS_CONWELL_MASK) == ATA_SS_CONWELL_GEN1 ||
357 	    (status & ATA_SS_CONWELL_MASK) == ATA_SS_CONWELL_GEN2)
358 	    break;
359 	ata_udelay(10000);
360     }
361     if (timeout >= 100) {
362 	if (bootverbose)
363 	    device_printf(ch->dev, "SATA connect status=%08x\n", status);
364 	return 0;
365     }
366 
367     if (bootverbose)
368 	device_printf(ch->dev, "SATA connect time=%dms\n", timeout * 10);
369 
370     /* clear SATA error register */
371     ATA_IDX_OUTL(ch, ATA_SERROR, ATA_IDX_INL(ch, ATA_SERROR));
372 
373     return 1;
374 }
375 
376 static void
377 ata_sata_setmode(device_t dev, int mode)
378 {
379     struct ata_device *atadev = device_get_softc(dev);
380 
381     /*
382      * if we detect that the device isn't a real SATA device we limit
383      * the transfer mode to UDMA5/ATA100.
384      * this works around the problems some devices has with the
385      * Marvell 88SX8030 SATA->PATA converters and UDMA6/ATA133.
386      */
387     if (atadev->param.satacapabilities != 0x0000 &&
388 	atadev->param.satacapabilities != 0xffff) {
389 	struct ata_channel *ch = device_get_softc(device_get_parent(dev));
390 
391 	/* on some drives we need to set the transfer mode */
392 	ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0,
393 		       ata_limit_mode(dev, mode, ATA_UDMA6));
394 
395 	/* query SATA STATUS for the speed */
396         if (ch->r_io[ATA_SSTATUS].res &&
397 	   ((ATA_IDX_INL(ch, ATA_SSTATUS) & ATA_SS_CONWELL_MASK) ==
398 	    ATA_SS_CONWELL_GEN2))
399 	    atadev->mode = ATA_SA300;
400 	else
401 	    atadev->mode = ATA_SA150;
402     }
403     else {
404 	mode = ata_limit_mode(dev, mode, ATA_UDMA5);
405 	if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
406 	    atadev->mode = mode;
407     }
408 }
409 
410 static int
411 ata_request2fis_h2d(struct ata_request *request, u_int8_t *fis)
412 {
413     struct ata_device *atadev = device_get_softc(request->dev);
414 
415     if (request->flags & ATA_R_ATAPI) {
416 	fis[0] = 0x27;  /* host to device */
417 	fis[1] = 0x80;  /* command FIS (note PM goes here) */
418 	fis[2] = ATA_PACKET_CMD;
419 	if (request->flags & (ATA_R_READ | ATA_R_WRITE))
420 	    fis[3] = ATA_F_DMA;
421 	else {
422 	    fis[5] = request->transfersize;
423 	    fis[6] = request->transfersize >> 8;
424 	}
425 	fis[7] = ATA_D_LBA | atadev->unit;
426 	fis[15] = ATA_A_4BIT;
427 	return 20;
428     }
429     else {
430 	ata_modify_if_48bit(request);
431 	fis[0] = 0x27;  /* host to device */
432 	fis[1] = 0x80;  /* command FIS (note PM goes here) */
433 	fis[2] = request->u.ata.command;
434 	fis[3] = request->u.ata.feature;
435 	fis[4] = request->u.ata.lba;
436 	fis[5] = request->u.ata.lba >> 8;
437 	fis[6] = request->u.ata.lba >> 16;
438 	fis[7] = ATA_D_LBA | atadev->unit;
439 	if (!(atadev->flags & ATA_D_48BIT_ACTIVE))
440 	    fis[7] |= (request->u.ata.lba >> 24 & 0x0f);
441 	fis[8] = request->u.ata.lba >> 24;
442 	fis[9] = request->u.ata.lba >> 32;
443 	fis[10] = request->u.ata.lba >> 40;
444 	fis[11] = request->u.ata.feature >> 8;
445 	fis[12] = request->u.ata.count;
446 	fis[13] = request->u.ata.count >> 8;
447 	fis[15] = ATA_A_4BIT;
448 	return 20;
449     }
450     return 0;
451 }
452 
453 /*
454  * AHCI v1.x compliant SATA chipset support functions
455  */
456 static int
457 ata_ahci_chipinit(device_t dev)
458 {
459     struct ata_pci_controller *ctlr = device_get_softc(dev);
460     u_int32_t version;
461     int unit;
462 
463     /* reset AHCI controller */
464     ATA_OUTL(ctlr->r_res2, ATA_AHCI_GHC,
465 	     ATA_INL(ctlr->r_res2, ATA_AHCI_GHC) | ATA_AHCI_GHC_HR);
466     DELAY(1000000);
467     if (ATA_INL(ctlr->r_res2, ATA_AHCI_GHC) & ATA_AHCI_GHC_HR) {
468 	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
469 	device_printf(dev, "AHCI controller reset failure\n");
470 	return ENXIO;
471     }
472 
473     /* enable AHCI mode */
474     ATA_OUTL(ctlr->r_res2, ATA_AHCI_GHC,
475 	     ATA_INL(ctlr->r_res2, ATA_AHCI_GHC) | ATA_AHCI_GHC_AE);
476 
477     /* get the number of HW channels */
478     ctlr->channels =
479 	MAX(flsl(ATA_INL(ctlr->r_res2, ATA_AHCI_PI)),
480 	    (ATA_INL(ctlr->r_res2, ATA_AHCI_CAP) & ATA_AHCI_NPMASK) + 1);
481 
482     /* disable interrupt sources and clear interrupts */
483     for (unit = 0; unit < ctlr->channels; unit++) {
484 	int offset = unit << 7;
485 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IE + offset, 0);
486 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IS + offset, -1);
487     }
488     ATA_OUTL(ctlr->r_res2, ATA_AHCI_IS, ATA_INL(ctlr->r_res2, ATA_AHCI_IS));
489 
490     /* enable AHCI interrupts */
491     ATA_OUTL(ctlr->r_res2, ATA_AHCI_GHC,
492 	     ATA_INL(ctlr->r_res2, ATA_AHCI_GHC) | ATA_AHCI_GHC_IE);
493 
494     ctlr->reset = ata_ahci_reset;
495     ctlr->dmainit = ata_ahci_dmainit;
496     ctlr->allocate = ata_ahci_allocate;
497     ctlr->setmode = ata_sata_setmode;
498 
499     /* enable PCI interrupt */
500     pci_write_config(dev, PCIR_COMMAND,
501 		     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
502 
503     /* announce we support the HW */
504     version = ATA_INL(ctlr->r_res2, ATA_AHCI_VS);
505     device_printf(dev,
506 		  "AHCI Version %x%x.%x%x controller with %d ports detected\n",
507 		  (version >> 24) & 0xff, (version >> 16) & 0xff,
508 		  (version >> 8) & 0xff, version & 0xff,
509 		  (ATA_INL(ctlr->r_res2, ATA_AHCI_CAP) & ATA_AHCI_NPMASK) + 1);
510     return 0;
511 }
512 
513 static int
514 ata_ahci_allocate(device_t dev)
515 {
516     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
517     struct ata_channel *ch = device_get_softc(dev);
518     u_int64_t work;
519     int offset = ch->unit << 7;
520 
521     /* set the SATA resources */
522     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
523     ch->r_io[ATA_SSTATUS].offset = ATA_AHCI_P_SSTS + offset;
524     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
525     ch->r_io[ATA_SERROR].offset = ATA_AHCI_P_SERR + offset;
526     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
527     ch->r_io[ATA_SCONTROL].offset = ATA_AHCI_P_SCTL + offset;
528     ch->r_io[ATA_SACTIVE].res = ctlr->r_res2;
529     ch->r_io[ATA_SACTIVE].offset = ATA_AHCI_P_SACT + offset;
530 
531     ch->hw.status = ata_ahci_status;
532     ch->hw.begin_transaction = ata_ahci_begin_transaction;
533     ch->hw.end_transaction = ata_ahci_end_transaction;
534     ch->hw.command = NULL;      /* not used here */
535 
536     /* setup work areas */
537     work = ch->dma->work_bus + ATA_AHCI_CL_OFFSET;
538     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CLB + offset, work & 0xffffffff);
539     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CLBU + offset, work >> 32);
540 
541     work = ch->dma->work_bus + ATA_AHCI_FB_OFFSET;
542     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_FB + offset, work & 0xffffffff);
543     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_FBU + offset, work >> 32);
544 
545     /* enable wanted port interrupts */
546     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IE + offset,
547 	     (ATA_AHCI_P_IX_CPD | ATA_AHCI_P_IX_TFE | ATA_AHCI_P_IX_HBF |
548 	      ATA_AHCI_P_IX_HBD | ATA_AHCI_P_IX_IF | ATA_AHCI_P_IX_OF |
549 	      ATA_AHCI_P_IX_PRC | ATA_AHCI_P_IX_PC | ATA_AHCI_P_IX_DP |
550 	      ATA_AHCI_P_IX_UF | ATA_AHCI_P_IX_SDB | ATA_AHCI_P_IX_DS |
551 	      ATA_AHCI_P_IX_PS | ATA_AHCI_P_IX_DHR));
552 
553     /* start operations on this channel */
554     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
555 	     (ATA_AHCI_P_CMD_ACTIVE | ATA_AHCI_P_CMD_FRE |
556 	      ATA_AHCI_P_CMD_POD | ATA_AHCI_P_CMD_SUD | ATA_AHCI_P_CMD_ST));
557     return 0;
558 }
559 
560 static int
561 ata_ahci_status(device_t dev)
562 {
563     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
564     struct ata_channel *ch = device_get_softc(dev);
565     u_int32_t action = ATA_INL(ctlr->r_res2, ATA_AHCI_IS);
566     int offset = ch->unit << 7;
567     int tag = 0;
568 
569     if (action & (1 << ch->unit)) {
570 	u_int32_t istatus = ATA_INL(ctlr->r_res2, ATA_AHCI_P_IS + offset);
571 	u_int32_t cstatus = ATA_INL(ctlr->r_res2, ATA_AHCI_P_CI + offset);
572 
573 	/* clear interrupt(s) */
574 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_IS, action & (1 << ch->unit));
575 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IS + offset, istatus);
576 
577 	/* do we have any PHY events ? */
578 	/* XXX SOS check istatus phy bits */
579 	ata_sata_phy_check_events(dev);
580 
581 	/* do we have a potentially hanging engine to take care of? */
582 	if ((istatus & 0x78400050) && (cstatus & (1 << tag))) {
583 
584 	    u_int32_t cmd = ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset);
585 	    int timeout = 0;
586 
587 	    /* kill off all activity on this channel */
588 	    ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
589 		     cmd & ~(ATA_AHCI_P_CMD_FRE | ATA_AHCI_P_CMD_ST));
590 
591 	    /* XXX SOS this is not entirely wrong */
592 	    do {
593 		DELAY(1000);
594 		if (timeout++ > 500) {
595 		    device_printf(dev, "stopping AHCI engine failed\n");
596 		    break;
597 	        }
598 	    } while (ATA_INL(ctlr->r_res2,
599 			     ATA_AHCI_P_CMD + offset) & ATA_AHCI_P_CMD_CR);
600 
601 	    /* start operations on this channel */
602 	    ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
603 		     cmd | (ATA_AHCI_P_CMD_FRE | ATA_AHCI_P_CMD_ST));
604 
605 	    return 1;
606 	}
607 	else
608 	    return (!(cstatus & (1 << tag)));
609     }
610     return 0;
611 }
612 
613 /* must be called with ATA channel locked and state_mtx held */
614 static int
615 ata_ahci_begin_transaction(struct ata_request *request)
616 {
617     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
618     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
619     struct ata_ahci_cmd_tab *ctp;
620     struct ata_ahci_cmd_list *clp;
621     int offset = ch->unit << 7;
622     int tag = 0, entries = 0;
623     int fis_size;
624 
625     /* get a piece of the workspace for this request */
626     ctp = (struct ata_ahci_cmd_tab *)
627 	  (ch->dma->work + ATA_AHCI_CT_OFFSET + (ATA_AHCI_CT_SIZE * tag));
628 
629     /* setup the FIS for this request */
630     if (!(fis_size = ata_ahci_setup_fis(ctp, request))) {
631 	device_printf(request->dev, "setting up SATA FIS failed\n");
632 	request->result = EIO;
633 	return ATA_OP_FINISHED;
634     }
635 
636     /* if request moves data setup and load SG list */
637     if (request->flags & (ATA_R_READ | ATA_R_WRITE)) {
638 	if (ch->dma->load(ch->dev, request->data, request->bytecount,
639 			  request->flags & ATA_R_READ,
640 			  ctp->prd_tab, &entries)) {
641 	    device_printf(request->dev, "setting up DMA failed\n");
642 	    request->result = EIO;
643 	    return ATA_OP_FINISHED;
644 	}
645     }
646 
647     /* setup the command list entry */
648     clp = (struct ata_ahci_cmd_list *)
649 	  (ch->dma->work + ATA_AHCI_CL_OFFSET + (ATA_AHCI_CL_SIZE * tag));
650 
651     clp->prd_length = entries;
652     clp->cmd_flags = (request->flags & ATA_R_WRITE ? (1<<6) : 0) |
653 		     (request->flags & ATA_R_ATAPI ? ((1<<5) | (1<<7)) : 0) |
654 		     (fis_size / sizeof(u_int32_t));
655     clp->bytecount = 0;
656     clp->cmd_table_phys = htole64(ch->dma->work_bus + ATA_AHCI_CT_OFFSET +
657 				  (ATA_AHCI_CT_SIZE * tag));
658 
659     /* clear eventual ACTIVE bit */
660     ATA_IDX_OUTL(ch, ATA_SACTIVE, ATA_IDX_INL(ch, ATA_SACTIVE) & (1 << tag));
661 
662     /* set command type bit */
663     if (request->flags & ATA_R_ATAPI)
664 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
665 		 ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset) |
666 		 ATA_AHCI_P_CMD_ATAPI);
667     else
668 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
669 		 ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset) &
670 		 ~ATA_AHCI_P_CMD_ATAPI);
671 
672     /* issue command to controller */
673     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CI + offset, (1 << tag));
674 
675     if (!(request->flags & ATA_R_ATAPI)) {
676 	/* device reset doesn't interrupt */
677 	if (request->u.ata.command == ATA_DEVICE_RESET) {
678 	    u_int32_t tf_data;
679 	    int timeout = 1000000;
680 
681 	    do {
682 		DELAY(10);
683 		tf_data = ATA_INL(ctlr->r_res2, ATA_AHCI_P_TFD + (ch->unit<<7));
684 	    } while ((tf_data & ATA_S_BUSY) && timeout--);
685 	    if (bootverbose)
686 		device_printf(ch->dev, "device_reset timeout=%dus\n",
687 			      (1000000-timeout)*10);
688 	    request->status = tf_data;
689 	    if (request->status & ATA_S_ERROR)
690 		request->error = tf_data >> 8;
691 	    return ATA_OP_FINISHED;
692 	}
693     }
694 
695     /* start the timeout */
696     callout_reset(&request->callout, request->timeout * hz,
697 		  (timeout_t*)ata_timeout, request);
698     return ATA_OP_CONTINUES;
699 }
700 
701 /* must be called with ATA channel locked and state_mtx held */
702 static int
703 ata_ahci_end_transaction(struct ata_request *request)
704 {
705     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
706     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
707     struct ata_ahci_cmd_list *clp;
708     u_int32_t tf_data;
709     int offset = ch->unit << 7;
710     int tag = 0;
711 
712     /* kill the timeout */
713     callout_stop(&request->callout);
714 
715     /* get status */
716     tf_data = ATA_INL(ctlr->r_res2, ATA_AHCI_P_TFD + offset);
717     request->status = tf_data;
718 
719     /* if error status get details */
720     if (request->status & ATA_S_ERROR)
721 	request->error = tf_data >> 8;
722 
723     /* record how much data we actually moved */
724     clp = (struct ata_ahci_cmd_list *)
725 	  (ch->dma->work + ATA_AHCI_CL_OFFSET + (ATA_AHCI_CL_SIZE * tag));
726     request->donecount = clp->bytecount;
727 
728     /* release SG list etc */
729     ch->dma->unload(ch->dev);
730 
731     return ATA_OP_FINISHED;
732 }
733 
734 static void
735 ata_ahci_reset(device_t dev)
736 {
737     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
738     struct ata_channel *ch = device_get_softc(dev);
739     u_int32_t cmd, signature;
740     int offset = ch->unit << 7;
741     int timeout;
742 
743     if (!(ATA_INL(ctlr->r_res2, ATA_AHCI_PI) & (1 << ch->unit))) {
744 	device_printf(dev, "port not implemented\n");
745 	return;
746     }
747     ch->devices = 0;
748 
749     /* kill off all activity on this channel */
750     cmd = ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset);
751     ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
752 	     cmd & ~(ATA_AHCI_P_CMD_FRE | ATA_AHCI_P_CMD_ST));
753 
754     /* XXX SOS this is not entirely wrong */
755     timeout = 0;
756     do {
757 	DELAY(1000);
758 	if (timeout++ > 500) {
759 	    device_printf(dev, "stopping AHCI engine failed\n");
760 	    break;
761 	}
762     }
763     while (ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset) & ATA_AHCI_P_CMD_CR);
764 
765     /* issue Command List Override if supported */
766     if (ATA_INL(ctlr->r_res2, ATA_AHCI_CAP) & ATA_AHCI_CAP_CLO) {
767 	cmd = ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD + offset);
768 	cmd |= ATA_AHCI_P_CMD_CLO;
769 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset, cmd);
770 	timeout = 0;
771 	do {
772 	    DELAY(1000);
773 	    if (timeout++ > 500) {
774 		device_printf(dev, "executing CLO failed\n");
775 		break;
776 	    }
777 	}
778 	while (ATA_INL(ctlr->r_res2, ATA_AHCI_P_CMD+offset)&ATA_AHCI_P_CMD_CLO);
779     }
780 
781     /* reset PHY and decide what is present */
782     if (ata_sata_phy_reset(dev)) {
783 
784 	/* clear any interrupts pending on this channel */
785 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_IS + offset,
786 		 ATA_INL(ctlr->r_res2, ATA_AHCI_P_IS + offset));
787 
788 	/* clear SATA error register */
789 	ATA_IDX_OUTL(ch, ATA_SERROR, ATA_IDX_INL(ch, ATA_SERROR));
790 
791 	/* start operations on this channel */
792 	ATA_OUTL(ctlr->r_res2, ATA_AHCI_P_CMD + offset,
793 		 (ATA_AHCI_P_CMD_ACTIVE | ATA_AHCI_P_CMD_FRE |
794 		  ATA_AHCI_P_CMD_POD | ATA_AHCI_P_CMD_SUD | ATA_AHCI_P_CMD_ST));
795 
796 	signature = ATA_INL(ctlr->r_res2, ATA_AHCI_P_SIG + offset);
797 	switch (signature) {
798 	case 0x00000101:
799 	    ch->devices = ATA_ATA_MASTER;
800 	    break;
801 	case 0x96690101:
802 	    ch->devices = ATA_PORTMULTIPLIER;
803 	    device_printf(ch->dev, "Portmultipliers not supported yet\n");
804 	    ch->devices = 0;
805 	    break;
806 	case 0xeb140101:
807 	    ch->devices = ATA_ATAPI_MASTER;
808 	    break;
809 	default: /* SOS XXX */
810 	    if (bootverbose)
811 		device_printf(ch->dev, "No signature, assuming disk device\n");
812 	    ch->devices = ATA_ATA_MASTER;
813 	}
814     }
815     if (bootverbose)
816 	device_printf(dev, "ahci_reset devices=0x%b\n", ch->devices,
817 		      "\20\4ATAPI_SLAVE\3ATAPI_MASTER\2ATA_SLAVE\1ATA_MASTER");
818 }
819 
820 static void
821 ata_ahci_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
822 {
823     struct ata_dmasetprd_args *args = xsc;
824     struct ata_ahci_dma_prd *prd = args->dmatab;
825     int i;
826 
827     if (!(args->error = error)) {
828 	for (i = 0; i < nsegs; i++) {
829 	    prd[i].dba = htole64(segs[i].ds_addr);
830 	    prd[i].dbc = htole32((segs[i].ds_len - 1) & ATA_AHCI_PRD_MASK);
831 	}
832     }
833     args->nsegs = nsegs;
834 }
835 
836 static void
837 ata_ahci_dmainit(device_t dev)
838 {
839     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
840     struct ata_channel *ch = device_get_softc(dev);
841 
842     ata_dmainit(dev);
843     if (ch->dma) {
844 	/* note start and stop are not used here */
845 	ch->dma->setprd = ata_ahci_dmasetprd;
846 	ch->dma->max_iosize = 8192 * DEV_BSIZE;
847 	if (ATA_INL(ctlr->r_res2, ATA_AHCI_CAP) & ATA_AHCI_CAP_64BIT)
848 	    ch->dma->max_address = BUS_SPACE_MAXADDR;
849     }
850 }
851 
852 static int
853 ata_ahci_setup_fis(struct ata_ahci_cmd_tab *ctp, struct ata_request *request)
854 {
855     bzero(ctp->cfis, 64);
856     if (request->flags & ATA_R_ATAPI) {
857 	bzero(ctp->acmd, 32);
858 	bcopy(request->u.atapi.ccb, ctp->acmd, 16);
859     }
860     return ata_request2fis_h2d(request, &ctp->cfis[0]);
861 }
862 
863 /*
864  * Generic AHCI part support functions.
865  */
866 int
867 ata_genahci_ident(device_t dev)
868 {
869     struct ata_pci_controller *ctlr = device_get_softc(dev);
870     static struct ata_chip_id id = {0, 0, 0, 0x00, ATA_SA300, "AHCI"};
871     char buffer[64];
872 
873     if(!(pci_read_config(dev, PCIR_PROGIF, 1) == PCIP_STORAGE_SATA_AHCI)) {
874 	return ENXIO;
875     }
876 
877     ksprintf(buffer, "GENERIC %s %s controller", id.text, ata_mode2str(id.max_dma));
878     device_set_desc_copy(dev, buffer);
879     ctlr->chip = &id;
880     ctlr->chipinit = ata_genahci_chipinit;
881     return 0;
882 }
883 
884 static int
885 ata_genahci_chipinit(device_t dev)
886 {
887     struct ata_pci_controller *ctlr = device_get_softc(dev);
888 
889     if (ata_setup_interrupt(dev))
890 	return ENXIO;
891 
892     /* Check if the chip has PCI BAR 5 as memory resource. */
893     ctlr->r_type2 = SYS_RES_MEMORY;
894     ctlr->r_rid2 = PCIR_BAR(5);	/* 0x24 */
895     if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
896 					       &ctlr->r_rid2, RF_ACTIVE))) {
897 	return ata_ahci_chipinit(dev);
898     } else
899 	return ENXIO;
900 }
901 
902 /*
903  * Acard chipset support functions
904  */
905 int
906 ata_acard_ident(device_t dev)
907 {
908     struct ata_pci_controller *ctlr = device_get_softc(dev);
909     struct ata_chip_id *idx;
910     static struct ata_chip_id ids[] =
911     {{ ATA_ATP850R, 0, ATPOLD, 0x00, ATA_UDMA2, "ATP850" },
912      { ATA_ATP860A, 0, 0,      0x00, ATA_UDMA4, "ATP860A" },
913      { ATA_ATP860R, 0, 0,      0x00, ATA_UDMA4, "ATP860R" },
914      { ATA_ATP865A, 0, 0,      0x00, ATA_UDMA6, "ATP865A" },
915      { ATA_ATP865R, 0, 0,      0x00, ATA_UDMA6, "ATP865R" },
916      { 0, 0, 0, 0, 0, 0}};
917     char buffer[64];
918 
919     if (!(idx = ata_match_chip(dev, ids)))
920 	return ENXIO;
921 
922     ksprintf(buffer, "Acard %s %s controller",
923 	    idx->text, ata_mode2str(idx->max_dma));
924     device_set_desc_copy(dev, buffer);
925     ctlr->chip = idx;
926     ctlr->chipinit = ata_acard_chipinit;
927     return 0;
928 }
929 
930 static int
931 ata_acard_chipinit(device_t dev)
932 {
933     struct ata_pci_controller *ctlr = device_get_softc(dev);
934 
935     if (ata_setup_interrupt(dev))
936 	return ENXIO;
937 
938     ctlr->allocate = ata_acard_allocate;
939     if (ctlr->chip->cfg1 == ATPOLD) {
940 	ctlr->setmode = ata_acard_850_setmode;
941 	ctlr->locking = ata_serialize;
942     }
943     else
944 	ctlr->setmode = ata_acard_86X_setmode;
945     return 0;
946 }
947 
948 static int
949 ata_acard_allocate(device_t dev)
950 {
951     struct ata_channel *ch = device_get_softc(dev);
952 
953     /* setup the usual register normal pci style */
954     if (ata_pci_allocate(dev))
955 	return ENXIO;
956 
957     ch->hw.status = ata_acard_status;
958     return 0;
959 }
960 
961 static int
962 ata_acard_status(device_t dev)
963 {
964     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
965     struct ata_channel *ch = device_get_softc(dev);
966 
967     if (ctlr->chip->cfg1 == ATPOLD &&
968 	ATA_LOCKING(ch->dev, ATA_LF_WHICH) != ch->unit)
969 	    return 0;
970     if (ch->dma && (ch->dma->flags & ATA_DMA_ACTIVE)) {
971 	int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK;
972 
973 	if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) !=
974 	    ATA_BMSTAT_INTERRUPT)
975 	    return 0;
976 	ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR);
977 	DELAY(1);
978 	ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
979 		     ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
980 	DELAY(1);
981     }
982     if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) {
983 	DELAY(100);
984 	if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY)
985 	    return 0;
986     }
987     return 1;
988 }
989 
990 static void
991 ata_acard_850_setmode(device_t dev, int mode)
992 {
993     device_t gparent = GRANDPARENT(dev);
994     struct ata_pci_controller *ctlr = device_get_softc(gparent);
995     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
996     struct ata_device *atadev = device_get_softc(dev);
997     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
998     int error;
999 
1000     mode = ata_limit_mode(dev, mode,
1001 			  ata_atapi(dev) ? ATA_PIO_MAX : ctlr->chip->max_dma);
1002 
1003     /* XXX SOS missing WDMA0+1 + PIO modes */
1004     if (mode >= ATA_WDMA2) {
1005 	error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1006 	if (bootverbose)
1007 	    device_printf(dev, "%ssetting %s on %s chip\n",
1008 			  (error) ? "FAILURE " : "",
1009 			  ata_mode2str(mode), ctlr->chip->text);
1010 	if (!error) {
1011 	    u_int8_t reg54 = pci_read_config(gparent, 0x54, 1);
1012 
1013 	    reg54 &= ~(0x03 << (devno << 1));
1014 	    if (mode >= ATA_UDMA0)
1015 		reg54 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 1));
1016 	    pci_write_config(gparent, 0x54, reg54, 1);
1017 	    pci_write_config(gparent, 0x4a, 0xa6, 1);
1018 	    pci_write_config(gparent, 0x40 + (devno << 1), 0x0301, 2);
1019 	    atadev->mode = mode;
1020 	    return;
1021 	}
1022     }
1023     /* we could set PIO mode timings, but we assume the BIOS did that */
1024 }
1025 
1026 static void
1027 ata_acard_86X_setmode(device_t dev, int mode)
1028 {
1029     device_t gparent = GRANDPARENT(dev);
1030     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1031     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1032     struct ata_device *atadev = device_get_softc(dev);
1033     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1034     int error;
1035 
1036 
1037     mode = ata_limit_mode(dev, mode,
1038 			  ata_atapi(dev) ? ATA_PIO_MAX : ctlr->chip->max_dma);
1039 
1040     mode = ata_check_80pin(dev, mode);
1041 
1042     /* XXX SOS missing WDMA0+1 + PIO modes */
1043     if (mode >= ATA_WDMA2) {
1044 	error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1045 	if (bootverbose)
1046 	    device_printf(dev, "%ssetting %s on %s chip\n",
1047 			  (error) ? "FAILURE " : "",
1048 			  ata_mode2str(mode), ctlr->chip->text);
1049 	if (!error) {
1050 	    u_int16_t reg44 = pci_read_config(gparent, 0x44, 2);
1051 
1052 	    reg44 &= ~(0x000f << (devno << 2));
1053 	    if (mode >= ATA_UDMA0)
1054 		reg44 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 2));
1055 	    pci_write_config(gparent, 0x44, reg44, 2);
1056 	    pci_write_config(gparent, 0x4a, 0xa6, 1);
1057 	    pci_write_config(gparent, 0x40 + devno, 0x31, 1);
1058 	    atadev->mode = mode;
1059 	    return;
1060 	}
1061     }
1062     /* we could set PIO mode timings, but we assume the BIOS did that */
1063 }
1064 
1065 
1066 /*
1067  * Acer Labs Inc (ALI) chipset support functions
1068  */
1069 int
1070 ata_ali_ident(device_t dev)
1071 {
1072     struct ata_pci_controller *ctlr = device_get_softc(dev);
1073     struct ata_chip_id *idx;
1074     static struct ata_chip_id ids[] =
1075     {{ ATA_ALI_5289, 0x00, 2, ALISATA, ATA_SA150, "M5289" },
1076      { ATA_ALI_5288, 0x00, 4, ALISATA, ATA_SA300, "M5288" },
1077      { ATA_ALI_5287, 0x00, 4, ALISATA, ATA_SA150, "M5287" },
1078      { ATA_ALI_5281, 0x00, 2, ALISATA, ATA_SA150, "M5281" },
1079      { ATA_ALI_5229, 0xc5, 0, ALINEW,  ATA_UDMA6, "M5229" },
1080      { ATA_ALI_5229, 0xc4, 0, ALINEW,  ATA_UDMA5, "M5229" },
1081      { ATA_ALI_5229, 0xc2, 0, ALINEW,  ATA_UDMA4, "M5229" },
1082      { ATA_ALI_5229, 0x20, 0, ALIOLD,  ATA_UDMA2, "M5229" },
1083      { ATA_ALI_5229, 0x00, 0, ALIOLD,  ATA_WDMA2, "M5229" },
1084      { 0, 0, 0, 0, 0, 0}};
1085     char buffer[64];
1086 
1087     if (!(idx = ata_match_chip(dev, ids)))
1088 	return ENXIO;
1089 
1090     ksprintf(buffer, "AcerLabs %s %s controller",
1091 	    idx->text, ata_mode2str(idx->max_dma));
1092     device_set_desc_copy(dev, buffer);
1093     ctlr->chip = idx;
1094     ctlr->chipinit = ata_ali_chipinit;
1095     return 0;
1096 }
1097 
1098 static int
1099 ata_ali_chipinit(device_t dev)
1100 {
1101     struct ata_pci_controller *ctlr = device_get_softc(dev);
1102 
1103     if (ata_setup_interrupt(dev))
1104 	return ENXIO;
1105 
1106     switch (ctlr->chip->cfg2) {
1107     case ALISATA:
1108 	ctlr->channels = ctlr->chip->cfg1;
1109 	ctlr->allocate = ata_ali_sata_allocate;
1110 	ctlr->setmode = ata_sata_setmode;
1111 
1112 	/* if we have a memory resource we can likely do AHCI */
1113 	ctlr->r_type2 = SYS_RES_MEMORY;
1114 	ctlr->r_rid2 = PCIR_BAR(5);
1115 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
1116 						   &ctlr->r_rid2, RF_ACTIVE)))
1117 	    return ata_ahci_chipinit(dev);
1118 
1119 	/* enable PCI interrupt */
1120 	pci_write_config(dev, PCIR_COMMAND,
1121 			 pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
1122 	break;
1123 
1124     case ALINEW:
1125 	/* use device interrupt as byte count end */
1126 	pci_write_config(dev, 0x4a, pci_read_config(dev, 0x4a, 1) | 0x20, 1);
1127 
1128 	/* enable cable detection and UDMA support on newer chips */
1129 	pci_write_config(dev, 0x4b, pci_read_config(dev, 0x4b, 1) | 0x09, 1);
1130 
1131 	/* enable ATAPI UDMA mode */
1132 	pci_write_config(dev, 0x53, pci_read_config(dev, 0x53, 1) | 0x01, 1);
1133 
1134 	/* only chips with revision > 0xc4 can do 48bit DMA */
1135 	if (ctlr->chip->chiprev <= 0xc4)
1136 	    device_printf(dev,
1137 			  "using PIO transfers above 137GB as workaround for "
1138 			  "48bit DMA access bug, expect reduced performance\n");
1139 	ctlr->allocate = ata_ali_allocate;
1140 	ctlr->reset = ata_ali_reset;
1141 	ctlr->setmode = ata_ali_setmode;
1142 	break;
1143 
1144     case ALIOLD:
1145 	/* deactivate the ATAPI FIFO and enable ATAPI UDMA */
1146 	pci_write_config(dev, 0x53, pci_read_config(dev, 0x53, 1) | 0x03, 1);
1147 	ctlr->setmode = ata_ali_setmode;
1148 	break;
1149     }
1150     return 0;
1151 }
1152 
1153 static int
1154 ata_ali_allocate(device_t dev)
1155 {
1156     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1157     struct ata_channel *ch = device_get_softc(dev);
1158 
1159     /* setup the usual register normal pci style */
1160     if (ata_pci_allocate(dev))
1161 	return ENXIO;
1162 
1163     /* older chips can't do 48bit DMA transfers */
1164     if (ctlr->chip->chiprev <= 0xc4)
1165 	ch->flags |= ATA_NO_48BIT_DMA;
1166 
1167     return 0;
1168 }
1169 
1170 static int
1171 ata_ali_sata_allocate(device_t dev)
1172 {
1173     device_t parent = device_get_parent(dev);
1174     struct ata_pci_controller *ctlr = device_get_softc(parent);
1175     struct ata_channel *ch = device_get_softc(dev);
1176     struct resource *io = NULL, *ctlio = NULL;
1177     int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2);
1178     int i, rid;
1179 
1180     rid = PCIR_BAR(0) + (unit01 ? 8 : 0);
1181     io = bus_alloc_resource_any(parent, SYS_RES_IOPORT, &rid, RF_ACTIVE);
1182     if (!io)
1183 	return ENXIO;
1184 
1185     rid = PCIR_BAR(1) + (unit01 ? 8 : 0);
1186     ctlio = bus_alloc_resource_any(parent, SYS_RES_IOPORT, &rid, RF_ACTIVE);
1187     if (!ctlio) {
1188 	bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
1189 	return ENXIO;
1190     }
1191 
1192     for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
1193 	ch->r_io[i].res = io;
1194 	ch->r_io[i].offset = i + (unit10 ? 8 : 0);
1195     }
1196     ch->r_io[ATA_CONTROL].res = ctlio;
1197     ch->r_io[ATA_CONTROL].offset = 2 + (unit10 ? 4 : 0);
1198     ch->r_io[ATA_IDX_ADDR].res = io;
1199     ata_default_registers(dev);
1200     if (ctlr->r_res1) {
1201 	for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
1202 	    ch->r_io[i].res = ctlr->r_res1;
1203 	    ch->r_io[i].offset = (i - ATA_BMCMD_PORT)+(ch->unit * ATA_BMIOSIZE);
1204 	}
1205     }
1206     ch->flags |= ATA_NO_SLAVE;
1207 
1208     /* XXX SOS PHY handling awkward in ALI chip not supported yet */
1209     ata_pci_hw(dev);
1210     return 0;
1211 }
1212 
1213 static void
1214 ata_ali_reset(device_t dev)
1215 {
1216     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1217     struct ata_channel *ch = device_get_softc(dev);
1218     device_t *children;
1219     int nchildren, i;
1220 
1221     ata_generic_reset(dev);
1222 
1223     /*
1224      * workaround for datacorruption bug found on at least SUN Blade-100
1225      * find the ISA function on the southbridge and disable then enable
1226      * the ATA channel tristate buffer
1227      */
1228     if (ctlr->chip->chiprev == 0xc3 || ctlr->chip->chiprev == 0xc2) {
1229 	if (!device_get_children(GRANDPARENT(dev), &children, &nchildren)) {
1230 	    for (i = 0; i < nchildren; i++) {
1231 		if (pci_get_devid(children[i]) == ATA_ALI_1533) {
1232 		    pci_write_config(children[i], 0x58,
1233 				     pci_read_config(children[i], 0x58, 1) &
1234 				     ~(0x04 << ch->unit), 1);
1235 		    pci_write_config(children[i], 0x58,
1236 				     pci_read_config(children[i], 0x58, 1) |
1237 				     (0x04 << ch->unit), 1);
1238 		    break;
1239 		}
1240 	    }
1241 	    kfree(children, M_TEMP);
1242 	}
1243     }
1244 }
1245 
1246 static void
1247 ata_ali_setmode(device_t dev, int mode)
1248 {
1249     device_t gparent = GRANDPARENT(dev);
1250     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1251     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1252     struct ata_device *atadev = device_get_softc(dev);
1253     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1254     int error;
1255 
1256     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
1257 
1258     if (ctlr->chip->cfg2 & ALINEW) {
1259 	if (mode > ATA_UDMA2 &&
1260 	    pci_read_config(gparent, 0x4a, 1) & (1 << ch->unit)) {
1261 	    ata_print_cable(dev, "controller");
1262 	    mode = ATA_UDMA2;
1263 	}
1264     }
1265     else
1266 	mode = ata_check_80pin(dev, mode);
1267 
1268     if (ctlr->chip->cfg2 & ALIOLD) {
1269 	/* doesn't support ATAPI DMA on write */
1270 	ch->flags |= ATA_ATAPI_DMA_RO;
1271 	if (ch->devices & ATA_ATAPI_MASTER && ch->devices & ATA_ATAPI_SLAVE) {
1272 	    /* doesn't support ATAPI DMA on two ATAPI devices */
1273 	    device_printf(dev, "two atapi devices on this channel, no DMA\n");
1274 	    mode = ata_limit_mode(dev, mode, ATA_PIO_MAX);
1275 	}
1276     }
1277 
1278     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1279 
1280     if (bootverbose)
1281 	device_printf(dev, "%ssetting %s on %s chip\n",
1282 		   (error) ? "FAILURE " : "",
1283 		   ata_mode2str(mode), ctlr->chip->text);
1284     if (!error) {
1285 	if (mode >= ATA_UDMA0) {
1286 	    u_int8_t udma[] = {0x0c, 0x0b, 0x0a, 0x09, 0x08, 0x0f, 0x0d};
1287 	    u_int32_t word54 = pci_read_config(gparent, 0x54, 4);
1288 
1289 	    word54 &= ~(0x000f000f << (devno << 2));
1290 	    word54 |= (((udma[mode&ATA_MODE_MASK]<<16)|0x05)<<(devno<<2));
1291 	    pci_write_config(gparent, 0x54, word54, 4);
1292 	    pci_write_config(gparent, 0x58 + (ch->unit << 2),
1293 			     0x00310001, 4);
1294 	}
1295 	else {
1296 	    u_int32_t piotimings[] =
1297 		{ 0x006d0003, 0x00580002, 0x00440001, 0x00330001,
1298 		  0x00310001, 0x00440001, 0x00330001, 0x00310001};
1299 
1300 	    pci_write_config(gparent, 0x54, pci_read_config(gparent, 0x54, 4) &
1301 					    ~(0x0008000f << (devno << 2)), 4);
1302 	    pci_write_config(gparent, 0x58 + (ch->unit << 2),
1303 			     piotimings[ata_mode2idx(mode)], 4);
1304 	}
1305 	atadev->mode = mode;
1306     }
1307 }
1308 
1309 
1310 /*
1311  * American Micro Devices (AMD) chipset support functions
1312  */
1313 int
1314 ata_amd_ident(device_t dev)
1315 {
1316     struct ata_pci_controller *ctlr = device_get_softc(dev);
1317     struct ata_chip_id *idx;
1318     static struct ata_chip_id ids[] =
1319     {{ ATA_AMD756,  0x00, AMDNVIDIA, 0x00,            ATA_UDMA4, "756" },
1320      { ATA_AMD766,  0x00, AMDNVIDIA, AMDCABLE|AMDBUG, ATA_UDMA5, "766" },
1321      { ATA_AMD768,  0x00, AMDNVIDIA, AMDCABLE,        ATA_UDMA5, "768" },
1322      { ATA_AMD8111, 0x00, AMDNVIDIA, AMDCABLE,        ATA_UDMA6, "8111" },
1323      { 0, 0, 0, 0, 0, 0}};
1324     char buffer[64];
1325 
1326     if (!(idx = ata_match_chip(dev, ids)))
1327 	return ENXIO;
1328 
1329     ksprintf(buffer, "AMD %s %s controller",
1330 	    idx->text, ata_mode2str(idx->max_dma));
1331     device_set_desc_copy(dev, buffer);
1332     ctlr->chip = idx;
1333     ctlr->chipinit = ata_amd_chipinit;
1334     return 0;
1335 }
1336 
1337 static int
1338 ata_amd_chipinit(device_t dev)
1339 {
1340     struct ata_pci_controller *ctlr = device_get_softc(dev);
1341 
1342     if (ata_setup_interrupt(dev))
1343 	return ENXIO;
1344 
1345     /* disable/set prefetch, postwrite */
1346     if (ctlr->chip->cfg2 & AMDBUG)
1347 	pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) & 0x0f, 1);
1348     else
1349 	pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) | 0xf0, 1);
1350 
1351     ctlr->setmode = ata_via_family_setmode;
1352     return 0;
1353 }
1354 
1355 
1356 /*
1357  * ATI chipset support functions
1358  */
1359 int
1360 ata_ati_ident(device_t dev)
1361 {
1362     struct ata_pci_controller *ctlr = device_get_softc(dev);
1363     struct ata_chip_id *idx;
1364     static struct ata_chip_id ids[] =
1365     {{ ATA_ATI_IXP200,    0x00, 0,        0, ATA_UDMA5, "IXP200" },
1366      { ATA_ATI_IXP300,    0x00, 0,        0, ATA_UDMA6, "IXP300" },
1367      { ATA_ATI_IXP400,    0x00, 0,        0, ATA_UDMA6, "IXP400" },
1368      { ATA_ATI_SB600,     0x00, 0,        0, ATA_UDMA6, "SB600"  },
1369      { ATA_ATI_IXP300_S1, 0x00, SIIMEMIO, 0, ATA_SA150, "IXP300" },
1370      { ATA_ATI_IXP400_S1, 0x00, SIIMEMIO, 0, ATA_SA150, "IXP400" },
1371      { ATA_ATI_IXP400_S2, 0x00, SIIMEMIO, 0, ATA_SA150, "IXP400" },
1372      { ATA_ATI_SB600_S1,  0x00, ATIAHCI,     0, ATA_SA300, "SB600"  },
1373      { ATA_ATI_SB600_S2,  0x00, ATIAHCI,     0, ATA_SA300, "SB600"  },
1374      { 0, 0, 0, 0, 0, 0}};
1375     char buffer[64];
1376 
1377     if (!(idx = ata_match_chip(dev, ids)))
1378 	return ENXIO;
1379 
1380     ksprintf(buffer, "ATI %s %s controller",
1381 	    idx->text, ata_mode2str(idx->max_dma));
1382     device_set_desc_copy(dev, buffer);
1383     ctlr->chip = idx;
1384 
1385     /*
1386      * The ATI SATA controllers are actually a SiI 3112 controller, except
1387      * for the SB600.
1388      */
1389     if (ctlr->chip->cfg1 & SIIMEMIO)
1390 	ctlr->chipinit = ata_sii_chipinit;
1391     else
1392 	ctlr->chipinit = ata_ati_chipinit;
1393     return 0;
1394 }
1395 
1396 static int
1397 ata_ati_chipinit(device_t dev)
1398 {
1399     struct ata_pci_controller *ctlr = device_get_softc(dev);
1400 
1401     if (ata_setup_interrupt(dev))
1402 	return ENXIO;
1403 
1404     /* The SB600 needs special treatment. */
1405     if (ctlr->chip->cfg1 & ATIAHCI) {
1406 	/* Check if the chip is configured as an AHCI part. */
1407 	if ((pci_get_subclass(dev) == PCIS_STORAGE_SATA) &&
1408 	    (pci_read_config(dev, PCIR_PROGIF, 1) == PCIP_STORAGE_SATA_AHCI)) {
1409 	    /* Check if the chip has PCI BAR 5 as memory resource. */
1410 	    ctlr->r_type2 = SYS_RES_MEMORY;
1411 	    ctlr->r_rid2 = PCIR_BAR(5);	/* 0x24 */
1412 	    if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
1413 						       &ctlr->r_rid2,
1414 						       RF_ACTIVE))) {
1415 		return ata_ahci_chipinit(dev);
1416 	    }
1417 	}
1418     }
1419 
1420     ctlr->setmode = ata_ati_setmode;
1421     return 0;
1422 }
1423 
1424 static void
1425 ata_ati_setmode(device_t dev, int mode)
1426 {
1427     device_t gparent = GRANDPARENT(dev);
1428     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1429     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1430     struct ata_device *atadev = device_get_softc(dev);
1431     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1432     int offset = (devno ^ 0x01) << 3;
1433     int error;
1434     u_int8_t piotimings[] = { 0x5d, 0x47, 0x34, 0x22, 0x20, 0x34, 0x22, 0x20,
1435 			      0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
1436     u_int8_t dmatimings[] = { 0x77, 0x21, 0x20 };
1437 
1438     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
1439 
1440     mode = ata_check_80pin(dev, mode);
1441 
1442     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1443 
1444     if (bootverbose)
1445 	device_printf(dev, "%ssetting %s on %s chip\n",
1446 		      (error) ? "FAILURE " : "",
1447 		      ata_mode2str(mode), ctlr->chip->text);
1448     if (!error) {
1449 	if (mode >= ATA_UDMA0) {
1450 	    pci_write_config(gparent, 0x56,
1451 			     (pci_read_config(gparent, 0x56, 2) &
1452 			      ~(0xf << (devno << 2))) |
1453 			     ((mode & ATA_MODE_MASK) << (devno << 2)), 2);
1454 	    pci_write_config(gparent, 0x54,
1455 			     pci_read_config(gparent, 0x54, 1) |
1456 			     (0x01 << devno), 1);
1457 	    pci_write_config(gparent, 0x44,
1458 			     (pci_read_config(gparent, 0x44, 4) &
1459 			      ~(0xff << offset)) |
1460 			     (dmatimings[2] << offset), 4);
1461 	}
1462 	else if (mode >= ATA_WDMA0) {
1463 	    pci_write_config(gparent, 0x54,
1464 			     pci_read_config(gparent, 0x54, 1) &
1465 			      ~(0x01 << devno), 1);
1466 	    pci_write_config(gparent, 0x44,
1467 			     (pci_read_config(gparent, 0x44, 4) &
1468 			      ~(0xff << offset)) |
1469 			     (dmatimings[mode & ATA_MODE_MASK] << offset), 4);
1470 	}
1471 	else
1472 	    pci_write_config(gparent, 0x54,
1473 			     pci_read_config(gparent, 0x54, 1) &
1474 			     ~(0x01 << devno), 1);
1475 
1476 	pci_write_config(gparent, 0x4a,
1477 			 (pci_read_config(gparent, 0x4a, 2) &
1478 			  ~(0xf << (devno << 2))) |
1479 			 (((mode - ATA_PIO0) & ATA_MODE_MASK) << (devno<<2)),2);
1480 	pci_write_config(gparent, 0x40,
1481 			 (pci_read_config(gparent, 0x40, 4) &
1482 			  ~(0xff << offset)) |
1483 			 (piotimings[ata_mode2idx(mode)] << offset), 4);
1484 	atadev->mode = mode;
1485     }
1486 }
1487 
1488 /*
1489  * Cyrix chipset support functions
1490  */
1491 int
1492 ata_cyrix_ident(device_t dev)
1493 {
1494     struct ata_pci_controller *ctlr = device_get_softc(dev);
1495 
1496     if (pci_get_devid(dev) == ATA_CYRIX_5530) {
1497 	device_set_desc(dev, "Cyrix 5530 ATA33 controller");
1498 	ctlr->chipinit = ata_cyrix_chipinit;
1499 	return 0;
1500     }
1501     return ENXIO;
1502 }
1503 
1504 static int
1505 ata_cyrix_chipinit(device_t dev)
1506 {
1507     struct ata_pci_controller *ctlr = device_get_softc(dev);
1508 
1509     if (ata_setup_interrupt(dev))
1510 	return ENXIO;
1511 
1512     if (ctlr->r_res1)
1513 	ctlr->setmode = ata_cyrix_setmode;
1514     else
1515 	ctlr->setmode = ata_generic_setmode;
1516     return 0;
1517 }
1518 
1519 static void
1520 ata_cyrix_setmode(device_t dev, int mode)
1521 {
1522     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1523     struct ata_device *atadev = device_get_softc(dev);
1524     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1525     u_int32_t piotiming[] =
1526 	{ 0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010 };
1527     u_int32_t dmatiming[] = { 0x00077771, 0x00012121, 0x00002020 };
1528     u_int32_t udmatiming[] = { 0x00921250, 0x00911140, 0x00911030 };
1529     int error;
1530 
1531     ch->dma->alignment = 16;
1532     ch->dma->max_iosize = 126 * DEV_BSIZE;
1533 
1534     mode = ata_limit_mode(dev, mode, ATA_UDMA2);
1535 
1536     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1537 
1538     if (bootverbose)
1539 	device_printf(dev, "%ssetting %s on Cyrix chip\n",
1540 		      (error) ? "FAILURE " : "", ata_mode2str(mode));
1541     if (!error) {
1542 	if (mode >= ATA_UDMA0) {
1543 	    ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
1544 		     0x24 + (devno << 3), udmatiming[mode & ATA_MODE_MASK]);
1545 	}
1546 	else if (mode >= ATA_WDMA0) {
1547 	    ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
1548 		     0x24 + (devno << 3), dmatiming[mode & ATA_MODE_MASK]);
1549 	}
1550 	else {
1551 	    ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
1552 		     0x20 + (devno << 3), piotiming[mode & ATA_MODE_MASK]);
1553 	}
1554 	atadev->mode = mode;
1555     }
1556 }
1557 
1558 
1559 /*
1560  * Cypress chipset support functions
1561  */
1562 int
1563 ata_cypress_ident(device_t dev)
1564 {
1565     struct ata_pci_controller *ctlr = device_get_softc(dev);
1566 
1567     /*
1568      * the Cypress chip is a mess, it contains two ATA functions, but
1569      * both channels are visible on the first one.
1570      * simply ignore the second function for now, as the right
1571      * solution (ignoring the second channel on the first function)
1572      * doesn't work with the crappy ATA interrupt setup on the alpha.
1573      */
1574     if (pci_get_devid(dev) == ATA_CYPRESS_82C693 &&
1575 	pci_get_function(dev) == 1 &&
1576 	pci_get_subclass(dev) == PCIS_STORAGE_IDE) {
1577 	device_set_desc(dev, "Cypress 82C693 ATA controller");
1578 	ctlr->chipinit = ata_cypress_chipinit;
1579 	return 0;
1580     }
1581     return ENXIO;
1582 }
1583 
1584 static int
1585 ata_cypress_chipinit(device_t dev)
1586 {
1587     struct ata_pci_controller *ctlr = device_get_softc(dev);
1588 
1589     if (ata_setup_interrupt(dev))
1590 	return ENXIO;
1591 
1592     ctlr->setmode = ata_cypress_setmode;
1593     return 0;
1594 }
1595 
1596 static void
1597 ata_cypress_setmode(device_t dev, int mode)
1598 {
1599     device_t gparent = GRANDPARENT(dev);
1600     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1601     struct ata_device *atadev = device_get_softc(dev);
1602     int error;
1603 
1604     mode = ata_limit_mode(dev, mode, ATA_WDMA2);
1605 
1606     /* XXX SOS missing WDMA0+1 + PIO modes */
1607     if (mode == ATA_WDMA2) {
1608 	error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
1609 	if (bootverbose)
1610 	    device_printf(dev, "%ssetting WDMA2 on Cypress chip\n",
1611 			  error ? "FAILURE " : "");
1612 	if (!error) {
1613 	    pci_write_config(gparent, ch->unit ? 0x4e : 0x4c, 0x2020, 2);
1614 	    atadev->mode = mode;
1615 	    return;
1616 	}
1617     }
1618     /* we could set PIO mode timings, but we assume the BIOS did that */
1619 }
1620 
1621 
1622 /*
1623  * HighPoint chipset support functions
1624  */
1625 int
1626 ata_highpoint_ident(device_t dev)
1627 {
1628     struct ata_pci_controller *ctlr = device_get_softc(dev);
1629     struct ata_chip_id *idx;
1630     static struct ata_chip_id ids[] =
1631     {{ ATA_HPT374, 0x07, HPT374, 0x00,   ATA_UDMA6, "HPT374" },
1632      { ATA_HPT372, 0x02, HPT372, 0x00,   ATA_UDMA6, "HPT372N" },
1633      { ATA_HPT372, 0x01, HPT372, 0x00,   ATA_UDMA6, "HPT372" },
1634      { ATA_HPT371, 0x01, HPT372, 0x00,   ATA_UDMA6, "HPT371" },
1635      { ATA_HPT366, 0x05, HPT372, 0x00,   ATA_UDMA6, "HPT372" },
1636      { ATA_HPT366, 0x03, HPT370, 0x00,   ATA_UDMA5, "HPT370" },
1637      { ATA_HPT366, 0x02, HPT366, 0x00,   ATA_UDMA4, "HPT368" },
1638      { ATA_HPT366, 0x00, HPT366, HPTOLD, ATA_UDMA4, "HPT366" },
1639      { ATA_HPT302, 0x01, HPT372, 0x00,   ATA_UDMA6, "HPT302" },
1640      { 0, 0, 0, 0, 0, 0}};
1641     char buffer[64];
1642 
1643     if (!(idx = ata_match_chip(dev, ids)))
1644 	return ENXIO;
1645 
1646     strcpy(buffer, "HighPoint ");
1647     strcat(buffer, idx->text);
1648     if (idx->cfg1 == HPT374) {
1649 	if (pci_get_function(dev) == 0)
1650 	    strcat(buffer, " (channel 0+1)");
1651 	if (pci_get_function(dev) == 1)
1652 	    strcat(buffer, " (channel 2+3)");
1653     }
1654     ksprintf(buffer, "%s %s controller", buffer, ata_mode2str(idx->max_dma));
1655     device_set_desc_copy(dev, buffer);
1656     ctlr->chip = idx;
1657     ctlr->chipinit = ata_highpoint_chipinit;
1658     return 0;
1659 }
1660 
1661 static int
1662 ata_highpoint_chipinit(device_t dev)
1663 {
1664     struct ata_pci_controller *ctlr = device_get_softc(dev);
1665 
1666     if (ata_setup_interrupt(dev))
1667 	return ENXIO;
1668 
1669     if (ctlr->chip->cfg2 == HPTOLD) {
1670 	/* disable interrupt prediction */
1671 	pci_write_config(dev, 0x51, (pci_read_config(dev, 0x51, 1) & ~0x80), 1);
1672     }
1673     else {
1674 	/* disable interrupt prediction */
1675 	pci_write_config(dev, 0x51, (pci_read_config(dev, 0x51, 1) & ~0x03), 1);
1676 	pci_write_config(dev, 0x55, (pci_read_config(dev, 0x55, 1) & ~0x03), 1);
1677 
1678 	/* enable interrupts */
1679 	pci_write_config(dev, 0x5a, (pci_read_config(dev, 0x5a, 1) & ~0x10), 1);
1680 
1681 	/* set clocks etc */
1682 	if (ctlr->chip->cfg1 < HPT372)
1683 	    pci_write_config(dev, 0x5b, 0x22, 1);
1684 	else
1685 	    pci_write_config(dev, 0x5b,
1686 			     (pci_read_config(dev, 0x5b, 1) & 0x01) | 0x20, 1);
1687     }
1688     ctlr->allocate = ata_highpoint_allocate;
1689     ctlr->setmode = ata_highpoint_setmode;
1690     return 0;
1691 }
1692 
1693 static int
1694 ata_highpoint_allocate(device_t dev)
1695 {
1696     struct ata_channel *ch = device_get_softc(dev);
1697 
1698     /* setup the usual register normal pci style */
1699     if (ata_pci_allocate(dev))
1700 	return ENXIO;
1701 
1702     ch->flags |= ATA_ALWAYS_DMASTAT;
1703     return 0;
1704 }
1705 
1706 static void
1707 ata_highpoint_setmode(device_t dev, int mode)
1708 {
1709     device_t gparent = GRANDPARENT(dev);
1710     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1711     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1712     struct ata_device *atadev = device_get_softc(dev);
1713     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1714     int error;
1715     u_int32_t timings33[][4] = {
1716     /*    HPT366      HPT370      HPT372      HPT374               mode */
1717 	{ 0x40d0a7aa, 0x06914e57, 0x0d029d5e, 0x0ac1f48a },     /* PIO 0 */
1718 	{ 0x40d0a7a3, 0x06914e43, 0x0d029d26, 0x0ac1f465 },     /* PIO 1 */
1719 	{ 0x40d0a753, 0x06514e33, 0x0c829ca6, 0x0a81f454 },     /* PIO 2 */
1720 	{ 0x40c8a742, 0x06514e22, 0x0c829c84, 0x0a81f443 },     /* PIO 3 */
1721 	{ 0x40c8a731, 0x06514e21, 0x0c829c62, 0x0a81f442 },     /* PIO 4 */
1722 	{ 0x20c8a797, 0x26514e97, 0x2c82922e, 0x228082ea },     /* MWDMA 0 */
1723 	{ 0x20c8a732, 0x26514e33, 0x2c829266, 0x22808254 },     /* MWDMA 1 */
1724 	{ 0x20c8a731, 0x26514e21, 0x2c829262, 0x22808242 },     /* MWDMA 2 */
1725 	{ 0x10c8a731, 0x16514e31, 0x1c829c62, 0x121882ea },     /* UDMA 0 */
1726 	{ 0x10cba731, 0x164d4e31, 0x1c9a9c62, 0x12148254 },     /* UDMA 1 */
1727 	{ 0x10caa731, 0x16494e31, 0x1c929c62, 0x120c8242 },     /* UDMA 2 */
1728 	{ 0x10cfa731, 0x166d4e31, 0x1c8e9c62, 0x128c8242 },     /* UDMA 3 */
1729 	{ 0x10c9a731, 0x16454e31, 0x1c8a9c62, 0x12ac8242 },     /* UDMA 4 */
1730 	{ 0,          0x16454e31, 0x1c8a9c62, 0x12848242 },     /* UDMA 5 */
1731 	{ 0,          0,          0x1c869c62, 0x12808242 }      /* UDMA 6 */
1732     };
1733 
1734     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
1735 
1736     if (ctlr->chip->cfg1 == HPT366 && ata_atapi(dev))
1737 	mode = ata_limit_mode(dev, mode, ATA_PIO_MAX);
1738 
1739     mode = ata_highpoint_check_80pin(dev, mode);
1740 
1741     /*
1742      * most if not all HPT chips cant really handle that the device is
1743      * running at ATA_UDMA6/ATA133 speed, so we cheat at set the device to
1744      * a max of ATA_UDMA5/ATA100 to guard against suboptimal performance
1745      */
1746     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0,
1747 			   ata_limit_mode(dev, mode, ATA_UDMA5));
1748     if (bootverbose)
1749 	device_printf(dev, "%ssetting %s on HighPoint chip\n",
1750 		      (error) ? "FAILURE " : "", ata_mode2str(mode));
1751     if (!error)
1752 	pci_write_config(gparent, 0x40 + (devno << 2),
1753 			 timings33[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
1754     atadev->mode = mode;
1755 }
1756 
1757 static int
1758 ata_highpoint_check_80pin(device_t dev, int mode)
1759 {
1760     device_t gparent = GRANDPARENT(dev);
1761     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1762     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1763     u_int8_t reg, val, res;
1764 
1765     if (ctlr->chip->cfg1 == HPT374 && pci_get_function(gparent) == 1) {
1766 	reg = ch->unit ? 0x57 : 0x53;
1767 	val = pci_read_config(gparent, reg, 1);
1768 	pci_write_config(gparent, reg, val | 0x80, 1);
1769     }
1770     else {
1771 	reg = 0x5b;
1772 	val = pci_read_config(gparent, reg, 1);
1773 	pci_write_config(gparent, reg, val & 0xfe, 1);
1774     }
1775     res = pci_read_config(gparent, 0x5a, 1) & (ch->unit ? 0x1:0x2);
1776     pci_write_config(gparent, reg, val, 1);
1777 
1778     if (mode > ATA_UDMA2 && res) {
1779 	ata_print_cable(dev, "controller");
1780 	mode = ATA_UDMA2;
1781     }
1782     return mode;
1783 }
1784 
1785 
1786 /*
1787  * Intel chipset support functions
1788  */
1789 int
1790 ata_intel_ident(device_t dev)
1791 {
1792     struct ata_pci_controller *ctlr = device_get_softc(dev);
1793     struct ata_chip_id *idx;
1794     static struct ata_chip_id ids[] =
1795     {{ ATA_I82371FB,    0,    0, 0x00, ATA_WDMA2, "PIIX" },
1796      { ATA_I82371SB,    0,    0, 0x00, ATA_WDMA2, "PIIX3" },
1797      { ATA_I82371AB,    0,    0, 0x00, ATA_UDMA2, "PIIX4" },
1798      { ATA_I82443MX,    0,    0, 0x00, ATA_UDMA2, "PIIX4" },
1799      { ATA_I82451NX,    0,    0, 0x00, ATA_UDMA2, "PIIX4" },
1800      { ATA_I82801AB,    0,    0, 0x00, ATA_UDMA2, "ICH0" },
1801      { ATA_I82801AA,    0,    0, 0x00, ATA_UDMA4, "ICH" },
1802      { ATA_I82372FB,    0,    0, 0x00, ATA_UDMA4, "ICH" },
1803      { ATA_I82801BA,    0,    0, 0x00, ATA_UDMA5, "ICH2" },
1804      { ATA_I82801BA_1,  0,    0, 0x00, ATA_UDMA5, "ICH2" },
1805      { ATA_I82801CA,    0,    0, 0x00, ATA_UDMA5, "ICH3" },
1806      { ATA_I82801CA_1,  0,    0, 0x00, ATA_UDMA5, "ICH3" },
1807      { ATA_I82801DB,    0,    0, 0x00, ATA_UDMA5, "ICH4" },
1808      { ATA_I82801DB_1,  0,    0, 0x00, ATA_UDMA5, "ICH4" },
1809      { ATA_I82801EB,    0,    0, 0x00, ATA_UDMA5, "ICH5" },
1810      { ATA_I82801EB_S1, 0,    0, 0x00, ATA_SA150, "ICH5" },
1811      { ATA_I82801EB_R1, 0,    0, 0x00, ATA_SA150, "ICH5" },
1812      { ATA_I6300ESB,    0,    0, 0x00, ATA_UDMA5, "6300ESB" },
1813      { ATA_I6300ESB_S1, 0,    0, 0x00, ATA_SA150, "6300ESB" },
1814      { ATA_I6300ESB_R1, 0,    0, 0x00, ATA_SA150, "6300ESB" },
1815      { ATA_I82801FB,    0,    0, 0x00, ATA_UDMA5, "ICH6" },
1816      { ATA_I82801FB_S1, 0, AHCI, 0x00, ATA_SA150, "ICH6" },
1817      { ATA_I82801FB_R1, 0, AHCI, 0x00, ATA_SA150, "ICH6" },
1818      { ATA_I82801FBM,   0, AHCI, 0x00, ATA_SA150, "ICH6M" },
1819      { ATA_I82801GB,    0,    0, 0x00, ATA_UDMA5, "ICH7" },
1820      { ATA_I82801GB_S1, 0, AHCI, 0x00, ATA_SA300, "ICH7" },
1821      { ATA_I82801GB_R1, 0, AHCI, 0x00, ATA_SA300, "ICH7" },
1822      { ATA_I82801GB_AH, 0, AHCI, 0x00, ATA_SA300, "ICH7" },
1823      { ATA_I82801GBM_S1, 0, AHCI, 0x00, ATA_SA300, "ICH7M" },
1824      { ATA_I82801GBM_R1, 0, AHCI, 0x00, ATA_SA300, "ICH7M" },
1825      { ATA_I82801GBM_AH, 0, AHCI, 0x00, ATA_SA300, "ICH7M" },
1826      { ATA_I63XXESB2,    0,    0, 0x00, ATA_UDMA5, "63XXESB2" },
1827      { ATA_I63XXESB2_S1, 0, AHCI, 0x00, ATA_SA300, "63XXESB2" },
1828      { ATA_I63XXESB2_S2, 0, AHCI, 0x00, ATA_SA300, "63XXESB2" },
1829      { ATA_I63XXESB2_R1, 0, AHCI, 0x00, ATA_SA300, "63XXESB2" },
1830      { ATA_I63XXESB2_R2, 0, AHCI, 0x00, ATA_SA300, "63XXESB2" },
1831      { ATA_I82801HB_S1,  0, AHCI, 0x00, ATA_SA300, "ICH8" },
1832      { ATA_I82801HB_S2,  0, AHCI, 0x00, ATA_SA300, "ICH8" },
1833      { ATA_I82801HB_R1,  0, AHCI, 0x00, ATA_SA300, "ICH8" },
1834      { ATA_I82801HB_AH4, 0, AHCI, 0x00, ATA_SA300, "ICH8" },
1835      { ATA_I82801HB_AH6, 0, AHCI, 0x00, ATA_SA300, "ICH8" },
1836      { ATA_I82801HBM_S1, 0,    0, 0x00, ATA_SA300, "ICH8M" },
1837      { ATA_I82801HBM_S2, 0, AHCI, 0x00, ATA_SA300, "ICH8M" },
1838      { ATA_I82801HBM_S3, 0, AHCI, 0x00, ATA_SA300, "ICH8M" },
1839      { ATA_I82801IB_S1,  0, AHCI, 0x00, ATA_SA300, "ICH9" },
1840      { ATA_I82801IB_S2,  0, AHCI, 0x00, ATA_SA300, "ICH9" },
1841      { ATA_I82801IB_AH2, 0, AHCI, 0x00, ATA_SA300, "ICH9" },
1842      { ATA_I82801IB_AH4, 0, AHCI, 0x00, ATA_SA300, "ICH9" },
1843      { ATA_I82801IB_AH6, 0, AHCI, 0x00, ATA_SA300, "ICH9" },
1844      { ATA_I31244,      0,    0, 0x00, ATA_SA150, "31244" },
1845      { 0, 0, 0, 0, 0, 0}};
1846     char buffer[64];
1847 
1848     if (!(idx = ata_match_chip(dev, ids)))
1849 	return ENXIO;
1850 
1851     ksprintf(buffer, "Intel %s %s controller",
1852 	    idx->text, ata_mode2str(idx->max_dma));
1853     device_set_desc_copy(dev, buffer);
1854     ctlr->chip = idx;
1855     ctlr->chipinit = ata_intel_chipinit;
1856     return 0;
1857 }
1858 
1859 static int
1860 ata_intel_chipinit(device_t dev)
1861 {
1862     struct ata_pci_controller *ctlr = device_get_softc(dev);
1863 
1864     if (ata_setup_interrupt(dev))
1865 	return ENXIO;
1866 
1867     /* good old PIIX needs special treatment (not implemented) */
1868     if (ctlr->chip->chipid == ATA_I82371FB) {
1869 	ctlr->setmode = ata_intel_old_setmode;
1870     }
1871 
1872     /* the intel 31244 needs special care if in DPA mode */
1873     else if (ctlr->chip->chipid == ATA_I31244) {
1874 	if (pci_get_subclass(dev) != PCIS_STORAGE_IDE) {
1875 	    ctlr->r_type2 = SYS_RES_MEMORY;
1876 	    ctlr->r_rid2 = PCIR_BAR(0);
1877 	    if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
1878 							&ctlr->r_rid2,
1879 							RF_ACTIVE)))
1880 		return ENXIO;
1881 	    ctlr->channels = 4;
1882 	    ctlr->allocate = ata_intel_31244_allocate;
1883 	    ctlr->reset = ata_intel_31244_reset;
1884 	}
1885 	ctlr->setmode = ata_sata_setmode;
1886     }
1887 
1888     /* non SATA intel chips goes here */
1889     else if (ctlr->chip->max_dma < ATA_SA150) {
1890 	ctlr->allocate = ata_intel_allocate;
1891 	ctlr->setmode = ata_intel_new_setmode;
1892     }
1893 
1894     /* SATA parts can be either compat or AHCI */
1895     else {
1896 	/* force all ports active "the legacy way" */
1897 	pci_write_config(dev, 0x92, pci_read_config(dev, 0x92, 2) | 0x0f,2);
1898 
1899 	ctlr->allocate = ata_intel_allocate;
1900 	ctlr->reset = ata_intel_reset;
1901 
1902 	/*
1903 	 * if we have AHCI capability and BAR(5) as a memory resource
1904 	 * and AHCI or RAID mode enabled in BIOS we go for AHCI mode
1905 	 */
1906 	if ((ctlr->chip->cfg1 == AHCI) &&
1907 	    (pci_read_config(dev, 0x90, 1) & 0xc0)) {
1908 	    ctlr->r_type2 = SYS_RES_MEMORY;
1909 	    ctlr->r_rid2 = PCIR_BAR(5);
1910 	    if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
1911 						       &ctlr->r_rid2,
1912 						       RF_ACTIVE)))
1913 		return ata_ahci_chipinit(dev);
1914 	}
1915 	ctlr->setmode = ata_sata_setmode;
1916 
1917 	/* enable PCI interrupt */
1918 	pci_write_config(dev, PCIR_COMMAND,
1919 			 pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
1920     }
1921     return 0;
1922 }
1923 
1924 static int
1925 ata_intel_allocate(device_t dev)
1926 {
1927     struct ata_channel *ch = device_get_softc(dev);
1928 
1929     /* setup the usual register normal pci style */
1930     if (ata_pci_allocate(dev))
1931 	return ENXIO;
1932 
1933     ch->flags |= ATA_ALWAYS_DMASTAT;
1934     return 0;
1935 }
1936 
1937 static void
1938 ata_intel_reset(device_t dev)
1939 {
1940     device_t parent = device_get_parent(dev);
1941     struct ata_pci_controller *ctlr = device_get_softc(parent);
1942     struct ata_channel *ch = device_get_softc(dev);
1943     int mask, timeout;
1944 
1945     /* ICH6 & ICH7 in compat mode has 4 SATA ports as master/slave on 2 ch's */
1946     if (ctlr->chip->cfg1) {
1947 	mask = (0x0005 << ch->unit);
1948     }
1949     else {
1950 	/* ICH5 in compat mode has SATA ports as master/slave on 1 channel */
1951 	if (pci_read_config(parent, 0x90, 1) & 0x04)
1952 	    mask = 0x0003;
1953 	else {
1954 	    mask = (0x0001 << ch->unit);
1955 	    /* XXX SOS should be in intel_allocate if we grow it */
1956 	    ch->flags |= ATA_NO_SLAVE;
1957 	}
1958     }
1959     pci_write_config(parent, 0x92, pci_read_config(parent, 0x92, 2) & ~mask, 2);
1960     DELAY(10);
1961     pci_write_config(parent, 0x92, pci_read_config(parent, 0x92, 2) | mask, 2);
1962 
1963     /* wait up to 1 sec for "connect well" */
1964     for (timeout = 0; timeout < 100 ; timeout++) {
1965 	if (((pci_read_config(parent, 0x92, 2) & (mask << 4)) == (mask << 4)) &&
1966 	    (ATA_IDX_INB(ch, ATA_STATUS) != 0xff))
1967 	    break;
1968 	ata_udelay(10000);
1969     }
1970     ata_generic_reset(dev);
1971 }
1972 
1973 static void
1974 ata_intel_old_setmode(device_t dev, int mode)
1975 {
1976     /* NOT YET */
1977 }
1978 
1979 static void
1980 ata_intel_new_setmode(device_t dev, int mode)
1981 {
1982     device_t gparent = GRANDPARENT(dev);
1983     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1984     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1985     struct ata_device *atadev = device_get_softc(dev);
1986     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
1987     u_int32_t reg40 = pci_read_config(gparent, 0x40, 4);
1988     u_int8_t reg44 = pci_read_config(gparent, 0x44, 1);
1989     u_int8_t reg48 = pci_read_config(gparent, 0x48, 1);
1990     u_int16_t reg4a = pci_read_config(gparent, 0x4a, 2);
1991     u_int16_t reg54 = pci_read_config(gparent, 0x54, 2);
1992     u_int32_t mask40 = 0, new40 = 0;
1993     u_int8_t mask44 = 0, new44 = 0;
1994     int error;
1995     u_int8_t timings[] = { 0x00, 0x00, 0x10, 0x21, 0x23, 0x10, 0x21, 0x23,
1996 			   0x23, 0x23, 0x23, 0x23, 0x23, 0x23, 0x23 };
1997 			/* PIO0  PIO1  PIO2  PIO3  PIO4  WDMA0 WDMA1 WDMA2 */
1998 			/* UDMA0 UDMA1 UDMA2 UDMA3 UDMA4 UDMA5 UDMA6 */
1999 
2000     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
2001 
2002     if ( mode > ATA_UDMA2 && !(reg54 & (0x10 << devno))) {
2003 	ata_print_cable(dev, "controller");
2004 	mode = ATA_UDMA2;
2005     }
2006 
2007     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
2008 
2009     if (bootverbose)
2010 	device_printf(dev, "%ssetting %s on %s chip\n",
2011 		      (error) ? "FAILURE " : "",
2012 		      ata_mode2str(mode), ctlr->chip->text);
2013     if (error)
2014 	return;
2015 
2016     /*
2017      * reg48: 1 bit per (primary drive 0, primary drive 1, secondary
2018      *			 drive 0, secondary drive 1)
2019      *
2020      *		0 Disable Ultra DMA mode
2021      *		1 Enable Ultra DMA mode
2022      *
2023      * reg4a: 4 bits per (primary drive 0, primary drive 1, secondary
2024      *			  drive 0, secondary drive 1).
2025      * 		0000 UDMA mode 0
2026      *		0001 UDMA mode 1, 3, 5
2027      *		0010 UDMA mode 2, 4, reserved
2028      *		0011 reserved
2029      *		(top two bits for each drive reserved)
2030      */
2031 #if 0
2032     device_printf(dev,
2033 		  "regs before 40=%08x 44=%02x 48=%02x 4a=%04x 54=%04x\n",
2034 		  reg40, reg44, reg48 ,reg4a, reg54);
2035 #endif
2036     reg48 &= ~(0x0001 << devno);
2037     reg4a &= ~(0x3 << (devno << 2));
2038     if (mode >= ATA_UDMA0) {
2039 	reg48 |= 0x0001 << devno;
2040 	if (mode > ATA_UDMA0)
2041 	    reg4a |= (1 + !(mode & 0x01)) << (devno << 2);
2042     }
2043     pci_write_config(gparent, 0x48, reg48, 2);
2044     pci_write_config(gparent, 0x4a, reg4a, 2);
2045 
2046     /*
2047      * reg54:
2048      *
2049      *	32:20	reserved
2050      *	19:18	Secondary ATA signal mode
2051      *  17:16	Primary ATA signal mode
2052      *		00 = Normal (enabled)
2053      *		01 = Tri-state (disabled)
2054      *		10 = Drive Low (disabled)
2055      *		11 = Reserved
2056      *
2057      *  15	Secondary drive 1	- Base Clock
2058      *  14	Secondary drive 0	- Base Clock
2059      *  13	Primary drive 1		- Base Clock
2060      *	12	Primary drive 0		- Base Clock
2061      *		0 = Select 33 MHz clock
2062      *		1 = Select 100 Mhz clock
2063      *
2064      *	11	Reserved
2065      *	10	Vendor specific (set by BIOS?)
2066      *  09:08	Reserved
2067      *
2068      *  07	Secondary drive 1 	- Cable Type
2069      *  06	Secondary drive 0	- Cable Type
2070      *  05	Primary drive 1		- Cable Type
2071      *	04	Primary drive 0		- Cable Type
2072      *		0 = 40 Conductor
2073      *		1 = 80 Conductor (or high speed cable)
2074      *
2075      *  03	Secondary drive 1 	- Select 33/66 clock
2076      *  02	Secondary drive 0	- Select 33/66 clock
2077      *  01	Primary drive 1		- Select 33/66 clock
2078      *	00	Primary drive 0		- Select 33/66 clock
2079      *		0 = Select 33 MHz
2080      *		1 = Select 66 MHz
2081      *
2082      *		It is unclear what this should be set to when operating
2083      *		in 100MHz mode.
2084      *
2085      * NOTE: UDMA2 = 33 MHz
2086      *	     UDMA3 = 40 MHz (?) - unsupported
2087      *	     UDMA4 = 66 MHz
2088      *	     UDMA5 = 100 MHz
2089      *	     UDMA6 = 133 Mhz
2090      */
2091     reg54 |= 0x0400;	/* set vendor specific bit */
2092     reg54 &= ~((0x1 << devno) | (0x1000 << devno));
2093 
2094     if (mode >= ATA_UDMA5)
2095 	reg54 |= (0x1000 << devno);
2096     else if (mode >= ATA_UDMA3)	/* XXX should this be ATA_UDMA3 or 4? */
2097 	reg54 |= (0x1 << devno);
2098 
2099     pci_write_config(gparent, 0x54, reg54, 2);
2100 
2101     /*
2102      * Reg40 (32 bits... well, actually two 16 bit registers)
2103      *
2104      * Primary channel bits 15:00, Secondary channel bits 31:00.  Note
2105      * that slave timings are handled in register 44.
2106      *
2107      * 15	ATA Decode Enable (R/W) 1 = enable decoding of I/O ranges
2108      *
2109      * 14	Slave ATA Timing Register Enable (R/W)
2110      *
2111      * 13:12	IORDY Sample Mode
2112      *		00	PIO-0
2113      *		01	PIO-2, SW-2
2114      *		10	PIO-3, PIO-4, MW-1, MW-2
2115      *		11	Reserved
2116      *
2117      * 11:10	Reserved
2118      *
2119      * 09:08	Recovery Mode
2120      *		00	PIO-0, PIO-2, SW-2
2121      *		01	PIO-3, MW-1
2122      *		10	Reserved
2123      *		11	PIO-4, MW-2
2124      *
2125      * 07:04	Secondary Device Control Bits
2126      * 03:00	Primary Device Control Bits
2127      *
2128      *		bit 3	DMA Timing Enable
2129      *
2130      *		bit 2	Indicate Presence of ATA(1) or ATAPI(0) device
2131      *
2132      *		bit 1	Enable IORDY sample point capability for PIO
2133      *			xfers.  Always enabled for PIO4 and PIO3, enabled
2134      *			for PIO2 if indicated by the device, and otherwise
2135      *			probably should be 0.
2136      *
2137      *		bit 0	Fast Drive Timing Enable.  Enables faster then PIO-0
2138      *			timing modes.
2139      */
2140 
2141     /*
2142      * Modify reg40 according to the table
2143      */
2144     if (atadev->unit == ATA_MASTER) {
2145 	mask40 = 0x3300;
2146 	new40 = timings[ata_mode2idx(mode)] << 8;
2147     }
2148     else {
2149 	mask44 = 0x0f;
2150 	new44 = ((timings[ata_mode2idx(mode)] & 0x30) >> 2) |
2151 		(timings[ata_mode2idx(mode)] & 0x03);
2152     }
2153 
2154     /*
2155      * Slave ATA timing register enable
2156      */
2157     mask40 |= 0x4000;
2158     new40  |= 0x4000;
2159 
2160     /*
2161      * Device control bits 3:0 for master, 7:4 for slave.
2162      *
2163      * bit3 DMA Timing enable.
2164      * bit2 Indicate presence of ATA(1) or ATAPI(0) device, set accordingly
2165      * bit1 Enable IORDY sample point capability for PIO xfers.  Always
2166      *	    enabled for PIO4 and PIO3, enabled for PIO2 if indicated by
2167      *	    the device, and otherwise should be 0.
2168      * bit0 Fast Drive Timing Enable.  Enable faster then PIO-0 timing modes.
2169      *
2170      * Set to: 0 x 1 1
2171      */
2172 
2173     if (atadev->unit == ATA_MASTER) {
2174 	mask40 |= 0x0F;
2175 	new40 |= 0x03;
2176 	if (!ata_atapi(dev))
2177 	    new40 |= 0x04;
2178     } else {
2179 	mask40 |= 0xF0;
2180 	new40 |= 0x30;
2181 	if (!ata_atapi(dev))
2182 	    new40 |= 0x40;
2183     }
2184     /*
2185     reg40 &= ~0x00ff00ff;
2186     reg40 |= 0x40774077;
2187     */
2188 
2189     /*
2190      * Primary or Secondary controller
2191      */
2192     if (ch->unit) {
2193 	mask40 <<= 16;
2194 	new40 <<= 16;
2195 	mask44 <<= 4;
2196 	new44 <<= 4;
2197     }
2198     pci_write_config(gparent, 0x40, (reg40 & ~mask40) | new40, 4);
2199     pci_write_config(gparent, 0x44, (reg44 & ~mask44) | new44, 1);
2200 
2201 #if 0
2202     reg40 = pci_read_config(gparent, 0x40, 4);
2203     reg44 = pci_read_config(gparent, 0x44, 1);
2204     reg48 = pci_read_config(gparent, 0x48, 1);
2205     reg4a = pci_read_config(gparent, 0x4a, 2);
2206     reg54 = pci_read_config(gparent, 0x54, 2);
2207     device_printf(dev,
2208 		  "regs after 40=%08x 44=%02x 48=%02x 4a=%04x 54=%04x\n",
2209 		  reg40, reg44, reg48 ,reg4a, reg54);
2210 #endif
2211 
2212     atadev->mode = mode;
2213 }
2214 
2215 static int
2216 ata_intel_31244_allocate(device_t dev)
2217 {
2218     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2219     struct ata_channel *ch = device_get_softc(dev);
2220     int i;
2221     int ch_offset;
2222 
2223     ch_offset = 0x200 + ch->unit * 0x200;
2224 
2225     for (i = ATA_DATA; i < ATA_MAX_RES; i++)
2226 	ch->r_io[i].res = ctlr->r_res2;
2227 
2228     /* setup ATA registers */
2229     ch->r_io[ATA_DATA].offset = ch_offset + 0x00;
2230     ch->r_io[ATA_FEATURE].offset = ch_offset + 0x06;
2231     ch->r_io[ATA_COUNT].offset = ch_offset + 0x08;
2232     ch->r_io[ATA_SECTOR].offset = ch_offset + 0x0c;
2233     ch->r_io[ATA_CYL_LSB].offset = ch_offset + 0x10;
2234     ch->r_io[ATA_CYL_MSB].offset = ch_offset + 0x14;
2235     ch->r_io[ATA_DRIVE].offset = ch_offset + 0x18;
2236     ch->r_io[ATA_COMMAND].offset = ch_offset + 0x1d;
2237     ch->r_io[ATA_ERROR].offset = ch_offset + 0x04;
2238     ch->r_io[ATA_STATUS].offset = ch_offset + 0x1c;
2239     ch->r_io[ATA_ALTSTAT].offset = ch_offset + 0x28;
2240     ch->r_io[ATA_CONTROL].offset = ch_offset + 0x29;
2241 
2242     /* setup DMA registers */
2243     ch->r_io[ATA_SSTATUS].offset = ch_offset + 0x100;
2244     ch->r_io[ATA_SERROR].offset = ch_offset + 0x104;
2245     ch->r_io[ATA_SCONTROL].offset = ch_offset + 0x108;
2246 
2247     /* setup SATA registers */
2248     ch->r_io[ATA_BMCMD_PORT].offset = ch_offset + 0x70;
2249     ch->r_io[ATA_BMSTAT_PORT].offset = ch_offset + 0x72;
2250     ch->r_io[ATA_BMDTP_PORT].offset = ch_offset + 0x74;
2251 
2252     ch->flags |= ATA_NO_SLAVE;
2253     ata_pci_hw(dev);
2254     ch->hw.status = ata_intel_31244_status;
2255     ch->hw.command = ata_intel_31244_command;
2256 
2257     /* enable PHY state change interrupt */
2258     ATA_OUTL(ctlr->r_res2, 0x4,
2259 	     ATA_INL(ctlr->r_res2, 0x04) | (0x01 << (ch->unit << 3)));
2260     return 0;
2261 }
2262 
2263 static int
2264 ata_intel_31244_status(device_t dev)
2265 {
2266     /* do we have any PHY events ? */
2267     ata_sata_phy_check_events(dev);
2268 
2269     /* any drive action to take care of ? */
2270     return ata_pci_status(dev);
2271 }
2272 
2273 static int
2274 ata_intel_31244_command(struct ata_request *request)
2275 {
2276     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
2277     struct ata_device *atadev = device_get_softc(request->dev);
2278     u_int64_t lba;
2279 
2280     if (!(atadev->flags & ATA_D_48BIT_ACTIVE))
2281 	    return (ata_generic_command(request));
2282 
2283     lba = request->u.ata.lba;
2284     ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | atadev->unit);
2285     /* enable interrupt */
2286     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_4BIT);
2287     ATA_IDX_OUTW(ch, ATA_FEATURE, request->u.ata.feature);
2288     ATA_IDX_OUTW(ch, ATA_COUNT, request->u.ata.count);
2289     ATA_IDX_OUTW(ch, ATA_SECTOR, ((lba >> 16) & 0xff00) | (lba & 0x00ff));
2290     ATA_IDX_OUTW(ch, ATA_CYL_LSB, ((lba >> 24) & 0xff00) |
2291 				  ((lba >> 8) & 0x00ff));
2292     ATA_IDX_OUTW(ch, ATA_CYL_MSB, ((lba >> 32) & 0xff00) |
2293 				  ((lba >> 16) & 0x00ff));
2294 
2295     /* issue command to controller */
2296     ATA_IDX_OUTB(ch, ATA_COMMAND, request->u.ata.command);
2297 
2298     return 0;
2299 }
2300 
2301 static void
2302 ata_intel_31244_reset(device_t dev)
2303 {
2304     if (ata_sata_phy_reset(dev))
2305 	ata_generic_reset(dev);
2306 }
2307 
2308 
2309 /*
2310  * Integrated Technology Express Inc. (ITE) chipset support functions
2311  */
2312 int
2313 ata_ite_ident(device_t dev)
2314 {
2315     struct ata_pci_controller *ctlr = device_get_softc(dev);
2316     struct ata_chip_id *idx;
2317     static struct ata_chip_id ids[] =
2318     {{ ATA_IT8212F, 0x00, 0x00, 0x00, ATA_UDMA6, "IT8212F" },
2319      { ATA_IT8211F, 0x00, 0x00, 0x00, ATA_UDMA6, "IT8211F" },
2320      { 0, 0, 0, 0, 0, 0}};
2321     char buffer[64];
2322 
2323     if (!(idx = ata_match_chip(dev, ids)))
2324 	return ENXIO;
2325 
2326     ksprintf(buffer, "ITE %s %s controller",
2327 	    idx->text, ata_mode2str(idx->max_dma));
2328     device_set_desc_copy(dev, buffer);
2329     ctlr->chip = idx;
2330     ctlr->chipinit = ata_ite_chipinit;
2331     return 0;
2332 }
2333 
2334 static int
2335 ata_ite_chipinit(device_t dev)
2336 {
2337     struct ata_pci_controller *ctlr = device_get_softc(dev);
2338 
2339     if (ata_setup_interrupt(dev))
2340 	return ENXIO;
2341 
2342     ctlr->setmode = ata_ite_setmode;
2343 
2344     /* set PCI mode and 66Mhz reference clock */
2345     pci_write_config(dev, 0x50, pci_read_config(dev, 0x50, 1) & ~0x83, 1);
2346 
2347     /* set default active & recover timings */
2348     pci_write_config(dev, 0x54, 0x31, 1);
2349     pci_write_config(dev, 0x56, 0x31, 1);
2350     return 0;
2351 }
2352 
2353 static void
2354 ata_ite_setmode(device_t dev, int mode)
2355 {
2356     device_t gparent = GRANDPARENT(dev);
2357     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
2358     struct ata_device *atadev = device_get_softc(dev);
2359     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
2360     int error;
2361 
2362     /* correct the mode for what the HW supports */
2363     mode = ata_limit_mode(dev, mode, ATA_UDMA6);
2364 
2365     /* check the CBLID bits for 80 conductor cable detection */
2366     if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x40, 2) &
2367 			     (ch->unit ? (1<<3) : (1<<2)))) {
2368 	ata_print_cable(dev, "controller");
2369 	mode = ATA_UDMA2;
2370     }
2371 
2372     /* set the wanted mode on the device */
2373     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
2374 
2375     if (bootverbose)
2376 	device_printf(dev, "%s setting %s on ITE8212F chip\n",
2377 		      (error) ? "failed" : "success", ata_mode2str(mode));
2378 
2379     /* if the device accepted the mode change, setup the HW accordingly */
2380     if (!error) {
2381 	if (mode >= ATA_UDMA0) {
2382 	    u_int8_t udmatiming[] =
2383 		{ 0x44, 0x42, 0x31, 0x21, 0x11, 0xa2, 0x91 };
2384 
2385 	    /* enable UDMA mode */
2386 	    pci_write_config(gparent, 0x50,
2387 			     pci_read_config(gparent, 0x50, 1) &
2388 			     ~(1 << (devno + 3)), 1);
2389 
2390 	    /* set UDMA timing */
2391 	    pci_write_config(gparent,
2392 			     0x56 + (ch->unit << 2) + ATA_DEV(atadev->unit),
2393 			     udmatiming[mode & ATA_MODE_MASK], 1);
2394 	}
2395 	else {
2396 	    u_int8_t chtiming[] =
2397 		{ 0xaa, 0xa3, 0xa1, 0x33, 0x31, 0x88, 0x32, 0x31 };
2398 
2399 	    /* disable UDMA mode */
2400 	    pci_write_config(gparent, 0x50,
2401 			     pci_read_config(gparent, 0x50, 1) |
2402 			     (1 << (devno + 3)), 1);
2403 
2404 	    /* set active and recover timing (shared between master & slave) */
2405 	    if (pci_read_config(gparent, 0x54 + (ch->unit << 2), 1) <
2406 		chtiming[ata_mode2idx(mode)])
2407 		pci_write_config(gparent, 0x54 + (ch->unit << 2),
2408 				 chtiming[ata_mode2idx(mode)], 1);
2409 	}
2410 	atadev->mode = mode;
2411     }
2412 }
2413 
2414 
2415 /*
2416  * JMicron chipset support functions
2417  */
2418 int
2419 ata_jmicron_ident(device_t dev)
2420 {
2421     struct ata_pci_controller *ctlr = device_get_softc(dev);
2422     struct ata_chip_id *idx;
2423     static struct ata_chip_id ids[] =
2424     {{ ATA_JMB360, 0, 1, 0, ATA_SA300, "JMB360" },
2425      { ATA_JMB361, 0, 1, 1, ATA_SA300, "JMB361" },
2426      { ATA_JMB363, 0, 2, 1, ATA_SA300, "JMB363" },
2427      { ATA_JMB365, 0, 1, 2, ATA_SA300, "JMB365" },
2428      { ATA_JMB366, 0, 2, 2, ATA_SA300, "JMB366" },
2429      { ATA_JMB368, 0, 0, 1, ATA_UDMA6, "JMB368" },
2430      { 0, 0, 0, 0, 0, 0}};
2431     char buffer[64];
2432 
2433     if (!(idx = ata_match_chip(dev, ids)))
2434         return ENXIO;
2435 
2436     if ((pci_read_config(dev, 0xdf, 1) & 0x40) &&
2437 	(pci_get_function(dev) == (pci_read_config(dev, 0x40, 1) & 0x02 >> 1)))
2438 	ksnprintf(buffer, sizeof(buffer), "JMicron %s %s controller",
2439 		idx->text, ata_mode2str(ATA_UDMA6));
2440     else
2441 	ksnprintf(buffer, sizeof(buffer), "JMicron %s %s controller",
2442 		idx->text, ata_mode2str(idx->max_dma));
2443     device_set_desc_copy(dev, buffer);
2444     ctlr->chip = idx;
2445     ctlr->chipinit = ata_jmicron_chipinit;
2446     return 0;
2447 }
2448 
2449 static int
2450 ata_jmicron_chipinit(device_t dev)
2451 {
2452     struct ata_pci_controller *ctlr = device_get_softc(dev);
2453     int error;
2454 
2455     if (ata_setup_interrupt(dev))
2456 	return ENXIO;
2457 
2458     /* do we have multiple PCI functions ? */
2459     if (pci_read_config(dev, 0xdf, 1) & 0x40) {
2460 	/* if we have a memory BAR(5) we are on the AHCI part */
2461 	ctlr->r_type2 = SYS_RES_MEMORY;
2462 	ctlr->r_rid2 = PCIR_BAR(5);
2463 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
2464 						   &ctlr->r_rid2, RF_ACTIVE)))
2465 	    return ata_ahci_chipinit(dev);
2466 
2467 	/* otherwise we are on the PATA part */
2468 	ctlr->allocate = ata_pci_allocate;
2469 	ctlr->reset = ata_generic_reset;
2470 	ctlr->dmainit = ata_pci_dmainit;
2471 	ctlr->setmode = ata_jmicron_setmode;
2472 	ctlr->channels = ctlr->chip->cfg2;
2473     }
2474     else {
2475 	/* set controller configuration to a combined setup we support */
2476 	pci_write_config(dev, 0x40, 0x80c0a131, 4);
2477 	pci_write_config(dev, 0x80, 0x01200000, 4);
2478 
2479 	ctlr->r_type2 = SYS_RES_MEMORY;
2480 	ctlr->r_rid2 = PCIR_BAR(5);
2481 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
2482 						   &ctlr->r_rid2, RF_ACTIVE))) {
2483 	    if ((error = ata_ahci_chipinit(dev)))
2484 		return error;
2485 	}
2486 
2487 	ctlr->allocate = ata_jmicron_allocate;
2488 	ctlr->reset = ata_jmicron_reset;
2489 	ctlr->dmainit = ata_jmicron_dmainit;
2490 	ctlr->setmode = ata_jmicron_setmode;
2491 
2492 	/* set the number of HW channels */
2493 	ctlr->channels = ctlr->chip->cfg1 + ctlr->chip->cfg2;
2494     }
2495     return 0;
2496 }
2497 
2498 static int
2499 ata_jmicron_allocate(device_t dev)
2500 {
2501     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2502     struct ata_channel *ch = device_get_softc(dev);
2503     int error;
2504 
2505     if (ch->unit >= ctlr->chip->cfg1) {
2506 	ch->unit -= ctlr->chip->cfg1;
2507 	error = ata_pci_allocate(dev);
2508 	ch->unit += ctlr->chip->cfg1;
2509     }
2510     else
2511 	error = ata_ahci_allocate(dev);
2512     return error;
2513 }
2514 
2515 static void
2516 ata_jmicron_reset(device_t dev)
2517 {
2518     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2519     struct ata_channel *ch = device_get_softc(dev);
2520 
2521     if (ch->unit >= ctlr->chip->cfg1)
2522 	ata_generic_reset(dev);
2523     else
2524 	ata_ahci_reset(dev);
2525 }
2526 
2527 static void
2528 ata_jmicron_dmainit(device_t dev)
2529 {
2530     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2531     struct ata_channel *ch = device_get_softc(dev);
2532 
2533     if (ch->unit >= ctlr->chip->cfg1)
2534 	ata_pci_dmainit(dev);
2535     else
2536 	ata_ahci_dmainit(dev);
2537 }
2538 
2539 static void
2540 ata_jmicron_setmode(device_t dev, int mode)
2541 {
2542     struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev));
2543     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
2544 
2545     if (pci_read_config(dev, 0xdf, 1) & 0x40 || ch->unit >= ctlr->chip->cfg1) {
2546 	struct ata_device *atadev = device_get_softc(dev);
2547 
2548 	/* check for 80pin cable present */
2549 	if (pci_read_config(dev, 0x40, 1) & 0x08)
2550 	    mode = ata_limit_mode(dev, mode, ATA_UDMA2);
2551 	else
2552 	    mode = ata_limit_mode(dev, mode, ATA_UDMA6);
2553 
2554 	if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
2555 	    atadev->mode = mode;
2556     }
2557     else
2558 	ata_sata_setmode(dev, mode);
2559 }
2560 
2561 
2562 /*
2563  * Marvell chipset support functions
2564  */
2565 #define ATA_MV_HOST_BASE(ch) \
2566 	((ch->unit & 3) * 0x0100) + (ch->unit > 3 ? 0x30000 : 0x20000)
2567 #define ATA_MV_EDMA_BASE(ch) \
2568 	((ch->unit & 3) * 0x2000) + (ch->unit > 3 ? 0x30000 : 0x20000)
2569 
2570 struct ata_marvell_response {
2571     u_int16_t   tag;
2572     u_int8_t    edma_status;
2573     u_int8_t    dev_status;
2574     u_int32_t   timestamp;
2575 };
2576 
2577 struct ata_marvell_dma_prdentry {
2578     u_int32_t addrlo;
2579     u_int32_t count;
2580     u_int32_t addrhi;
2581     u_int32_t reserved;
2582 };
2583 
2584 int
2585 ata_marvell_ident(device_t dev)
2586 {
2587     struct ata_pci_controller *ctlr = device_get_softc(dev);
2588     struct ata_chip_id *idx;
2589     static struct ata_chip_id ids[] =
2590     {{ ATA_M88SX5040, 0, 4, MV50XX, ATA_SA150, "88SX5040" },
2591      { ATA_M88SX5041, 0, 4, MV50XX, ATA_SA150, "88SX5041" },
2592      { ATA_M88SX5080, 0, 8, MV50XX, ATA_SA150, "88SX5080" },
2593      { ATA_M88SX5081, 0, 8, MV50XX, ATA_SA150, "88SX5081" },
2594      { ATA_M88SX6041, 0, 4, MV60XX, ATA_SA300, "88SX6041" },
2595      { ATA_M88SX6081, 0, 8, MV60XX, ATA_SA300, "88SX6081" },
2596      { ATA_M88SX6101, 0, 1, MV61XX, ATA_UDMA6, "88SX6101" },
2597      { ATA_M88SX6145, 0, 2, MV61XX, ATA_UDMA6, "88SX6145" },
2598      { 0, 0, 0, 0, 0, 0}};
2599     char buffer[64];
2600 
2601     if (!(idx = ata_match_chip(dev, ids)))
2602 	return ENXIO;
2603 
2604     ksprintf(buffer, "Marvell %s %s controller",
2605 	    idx->text, ata_mode2str(idx->max_dma));
2606     device_set_desc_copy(dev, buffer);
2607     ctlr->chip = idx;
2608     switch (ctlr->chip->cfg2) {
2609     case MV50XX:
2610     case MV60XX:
2611 	ctlr->chipinit = ata_marvell_edma_chipinit;
2612 	break;
2613     case MV61XX:
2614 	ctlr->chipinit = ata_marvell_pata_chipinit;
2615 	break;
2616     }
2617     return 0;
2618 }
2619 
2620 static int
2621 ata_marvell_pata_chipinit(device_t dev)
2622 {
2623     struct ata_pci_controller *ctlr = device_get_softc(dev);
2624 
2625     if (ata_setup_interrupt(dev))
2626 	return ENXIO;
2627 
2628     ctlr->allocate = ata_marvell_pata_allocate;
2629     ctlr->setmode = ata_marvell_pata_setmode;
2630     ctlr->channels = ctlr->chip->cfg1;
2631     return 0;
2632 }
2633 
2634 static int
2635 ata_marvell_pata_allocate(device_t dev)
2636 {
2637     struct ata_channel *ch = device_get_softc(dev);
2638 
2639     /* setup the usual register normal pci style */
2640     if (ata_pci_allocate(dev))
2641 	return ENXIO;
2642 
2643     /* dont use 32 bit PIO transfers */
2644     ch->flags |= ATA_USE_16BIT;
2645 
2646     return 0;
2647 }
2648 
2649 static void
2650 ata_marvell_pata_setmode(device_t dev, int mode)
2651 {
2652     device_t gparent = GRANDPARENT(dev);
2653     struct ata_pci_controller *ctlr = device_get_softc(gparent);
2654     struct ata_device *atadev = device_get_softc(dev);
2655 
2656     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
2657     mode = ata_check_80pin(dev, mode);
2658     if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
2659 	atadev->mode = mode;
2660 }
2661 
2662 static int
2663 ata_marvell_edma_chipinit(device_t dev)
2664 {
2665     struct ata_pci_controller *ctlr = device_get_softc(dev);
2666 
2667     if (ata_setup_interrupt(dev))
2668 	return ENXIO;
2669 
2670     ctlr->r_type1 = SYS_RES_MEMORY;
2671     ctlr->r_rid1 = PCIR_BAR(0);
2672     if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
2673 						&ctlr->r_rid1, RF_ACTIVE)))
2674 	return ENXIO;
2675 
2676     /* mask all host controller interrupts */
2677     ATA_OUTL(ctlr->r_res1, 0x01d64, 0x00000000);
2678 
2679     /* mask all PCI interrupts */
2680     ATA_OUTL(ctlr->r_res1, 0x01d5c, 0x00000000);
2681 
2682     ctlr->allocate = ata_marvell_edma_allocate;
2683     ctlr->reset = ata_marvell_edma_reset;
2684     ctlr->dmainit = ata_marvell_edma_dmainit;
2685     ctlr->setmode = ata_sata_setmode;
2686     ctlr->channels = ctlr->chip->cfg1;
2687 
2688     /* clear host controller interrupts */
2689     ATA_OUTL(ctlr->r_res1, 0x20014, 0x00000000);
2690     if (ctlr->chip->cfg1 > 4)
2691 	ATA_OUTL(ctlr->r_res1, 0x30014, 0x00000000);
2692 
2693     /* clear PCI interrupts */
2694     ATA_OUTL(ctlr->r_res1, 0x01d58, 0x00000000);
2695 
2696     /* unmask PCI interrupts we want */
2697     ATA_OUTL(ctlr->r_res1, 0x01d5c, 0x007fffff);
2698 
2699     /* unmask host controller interrupts we want */
2700     ATA_OUTL(ctlr->r_res1, 0x01d64, 0x000000ff/*HC0*/ | 0x0001fe00/*HC1*/ |
2701 	     /*(1<<19) | (1<<20) | (1<<21) |*/(1<<22) | (1<<24) | (0x7f << 25));
2702 
2703     /* enable PCI interrupt */
2704     pci_write_config(dev, PCIR_COMMAND,
2705 		     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
2706     return 0;
2707 }
2708 
2709 static int
2710 ata_marvell_edma_allocate(device_t dev)
2711 {
2712     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2713     struct ata_channel *ch = device_get_softc(dev);
2714     u_int64_t work = ch->dma->work_bus;
2715     int i;
2716 
2717     /* clear work area */
2718     bzero(ch->dma->work, 1024+256);
2719 
2720     /* set legacy ATA resources */
2721     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
2722 	ch->r_io[i].res = ctlr->r_res1;
2723 	ch->r_io[i].offset = 0x02100 + (i << 2) + ATA_MV_EDMA_BASE(ch);
2724     }
2725     ch->r_io[ATA_CONTROL].res = ctlr->r_res1;
2726     ch->r_io[ATA_CONTROL].offset = 0x02120 + ATA_MV_EDMA_BASE(ch);
2727     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res1;
2728     ata_default_registers(dev);
2729 
2730     /* set SATA resources */
2731     switch (ctlr->chip->cfg2) {
2732     case MV50XX:
2733 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res1;
2734 	ch->r_io[ATA_SSTATUS].offset =  0x00100 + ATA_MV_HOST_BASE(ch);
2735 	ch->r_io[ATA_SERROR].res = ctlr->r_res1;
2736 	ch->r_io[ATA_SERROR].offset = 0x00104 + ATA_MV_HOST_BASE(ch);
2737 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res1;
2738 	ch->r_io[ATA_SCONTROL].offset = 0x00108 + ATA_MV_HOST_BASE(ch);
2739 	break;
2740     case MV60XX:
2741 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res1;
2742 	ch->r_io[ATA_SSTATUS].offset =  0x02300 + ATA_MV_EDMA_BASE(ch);
2743 	ch->r_io[ATA_SERROR].res = ctlr->r_res1;
2744 	ch->r_io[ATA_SERROR].offset = 0x02304 + ATA_MV_EDMA_BASE(ch);
2745 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res1;
2746 	ch->r_io[ATA_SCONTROL].offset = 0x02308 + ATA_MV_EDMA_BASE(ch);
2747 	ch->r_io[ATA_SACTIVE].res = ctlr->r_res1;
2748 	ch->r_io[ATA_SACTIVE].offset = 0x02350 + ATA_MV_EDMA_BASE(ch);
2749 	break;
2750     }
2751 
2752     ch->flags |= ATA_NO_SLAVE;
2753     ch->flags |= ATA_USE_16BIT; /* XXX SOS needed ? */
2754     ata_generic_hw(dev);
2755     ch->hw.begin_transaction = ata_marvell_edma_begin_transaction;
2756     ch->hw.end_transaction = ata_marvell_edma_end_transaction;
2757     ch->hw.status = ata_marvell_edma_status;
2758 
2759     /* disable the EDMA machinery */
2760     ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000002);
2761     DELAY(100000);       /* SOS should poll for disabled */
2762 
2763     /* set configuration to non-queued 128b read transfers stop on error */
2764     ATA_OUTL(ctlr->r_res1, 0x02000 + ATA_MV_EDMA_BASE(ch), (1<<11) | (1<<13));
2765 
2766     /* request queue base high */
2767     ATA_OUTL(ctlr->r_res1, 0x02010 + ATA_MV_EDMA_BASE(ch), work >> 32);
2768 
2769     /* request queue in ptr */
2770     ATA_OUTL(ctlr->r_res1, 0x02014 + ATA_MV_EDMA_BASE(ch), work & 0xffffffff);
2771 
2772     /* request queue out ptr */
2773     ATA_OUTL(ctlr->r_res1, 0x02018 + ATA_MV_EDMA_BASE(ch), 0x0);
2774 
2775     /* response queue base high */
2776     work += 1024;
2777     ATA_OUTL(ctlr->r_res1, 0x0201c + ATA_MV_EDMA_BASE(ch), work >> 32);
2778 
2779     /* response queue in ptr */
2780     ATA_OUTL(ctlr->r_res1, 0x02020 + ATA_MV_EDMA_BASE(ch), 0x0);
2781 
2782     /* response queue out ptr */
2783     ATA_OUTL(ctlr->r_res1, 0x02024 + ATA_MV_EDMA_BASE(ch), work & 0xffffffff);
2784 
2785     /* clear SATA error register */
2786     ATA_IDX_OUTL(ch, ATA_SERROR, ATA_IDX_INL(ch, ATA_SERROR));
2787 
2788     /* clear any outstanding error interrupts */
2789     ATA_OUTL(ctlr->r_res1, 0x02008 + ATA_MV_EDMA_BASE(ch), 0x0);
2790 
2791     /* unmask all error interrupts */
2792     ATA_OUTL(ctlr->r_res1, 0x0200c + ATA_MV_EDMA_BASE(ch), ~0x0);
2793 
2794     /* enable EDMA machinery */
2795     ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000001);
2796     return 0;
2797 }
2798 
2799 static int
2800 ata_marvell_edma_status(device_t dev)
2801 {
2802     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2803     struct ata_channel *ch = device_get_softc(dev);
2804     u_int32_t cause = ATA_INL(ctlr->r_res1, 0x01d60);
2805     int shift = (ch->unit << 1) + (ch->unit > 3);
2806 
2807     if (cause & (1 << shift)) {
2808 
2809 	/* clear interrupt(s) */
2810 	ATA_OUTL(ctlr->r_res1, 0x02008 + ATA_MV_EDMA_BASE(ch), 0x0);
2811 
2812 	/* do we have any PHY events ? */
2813 	ata_sata_phy_check_events(dev);
2814     }
2815 
2816     /* do we have any device action ? */
2817     return (cause & (2 << shift));
2818 }
2819 
2820 /* must be called with ATA channel locked and state_mtx held */
2821 static int
2822 ata_marvell_edma_begin_transaction(struct ata_request *request)
2823 {
2824     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
2825     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
2826     u_int32_t req_in;
2827     u_int8_t *bytep;
2828     u_int16_t *wordp;
2829     u_int32_t *quadp;
2830     int i, tag = 0x07;
2831     int dummy, error, slot;
2832 
2833     /* only DMA R/W goes through the EMDA machine */
2834     if (request->u.ata.command != ATA_READ_DMA &&
2835 	request->u.ata.command != ATA_WRITE_DMA) {
2836 
2837 	/* disable the EDMA machinery */
2838 	if (ATA_INL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch)) & 0x00000001)
2839 	    ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000002);
2840 	return ata_begin_transaction(request);
2841     }
2842 
2843     /* check for 48 bit access and convert if needed */
2844     ata_modify_if_48bit(request);
2845 
2846     /* check sanity, setup SG list and DMA engine */
2847     if ((error = ch->dma->load(ch->dev, request->data, request->bytecount,
2848 			       request->flags & ATA_R_READ, ch->dma->sg,
2849 			       &dummy))) {
2850 	device_printf(request->dev, "setting up DMA failed\n");
2851 	request->result = error;
2852 	return ATA_OP_FINISHED;
2853     }
2854 
2855     /* get next free request queue slot */
2856     req_in = ATA_INL(ctlr->r_res1, 0x02014 + ATA_MV_EDMA_BASE(ch));
2857     slot = (((req_in & ~0xfffffc00) >> 5) + 0) & 0x1f;
2858     bytep = (u_int8_t *)(ch->dma->work);
2859     bytep += (slot << 5);
2860     wordp = (u_int16_t *)bytep;
2861     quadp = (u_int32_t *)bytep;
2862 
2863     /* fill in this request */
2864     quadp[0] = (long)ch->dma->sg_bus & 0xffffffff;
2865     quadp[1] = (u_int64_t)ch->dma->sg_bus >> 32;
2866     wordp[4] = (request->flags & ATA_R_READ ? 0x01 : 0x00) | (tag<<1);
2867 
2868     i = 10;
2869     bytep[i++] = (request->u.ata.count >> 8) & 0xff;
2870     bytep[i++] = 0x10 | ATA_COUNT;
2871     bytep[i++] = request->u.ata.count & 0xff;
2872     bytep[i++] = 0x10 | ATA_COUNT;
2873 
2874     bytep[i++] = (request->u.ata.lba >> 24) & 0xff;
2875     bytep[i++] = 0x10 | ATA_SECTOR;
2876     bytep[i++] = request->u.ata.lba & 0xff;
2877     bytep[i++] = 0x10 | ATA_SECTOR;
2878 
2879     bytep[i++] = (request->u.ata.lba >> 32) & 0xff;
2880     bytep[i++] = 0x10 | ATA_CYL_LSB;
2881     bytep[i++] = (request->u.ata.lba >> 8) & 0xff;
2882     bytep[i++] = 0x10 | ATA_CYL_LSB;
2883 
2884     bytep[i++] = (request->u.ata.lba >> 40) & 0xff;
2885     bytep[i++] = 0x10 | ATA_CYL_MSB;
2886     bytep[i++] = (request->u.ata.lba >> 16) & 0xff;
2887     bytep[i++] = 0x10 | ATA_CYL_MSB;
2888 
2889     bytep[i++] = ATA_D_LBA | ATA_D_IBM | ((request->u.ata.lba >> 24) & 0xf);
2890     bytep[i++] = 0x10 | ATA_DRIVE;
2891 
2892     bytep[i++] = request->u.ata.command;
2893     bytep[i++] = 0x90 | ATA_COMMAND;
2894 
2895     /* enable EDMA machinery if needed */
2896     if (!(ATA_INL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch)) & 0x00000001)) {
2897 	ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000001);
2898 	while (!(ATA_INL(ctlr->r_res1,
2899 			 0x02028 + ATA_MV_EDMA_BASE(ch)) & 0x00000001))
2900 	    DELAY(10);
2901     }
2902 
2903     /* tell EDMA it has a new request */
2904     slot = (((req_in & ~0xfffffc00) >> 5) + 1) & 0x1f;
2905     req_in &= 0xfffffc00;
2906     req_in += (slot << 5);
2907     ATA_OUTL(ctlr->r_res1, 0x02014 + ATA_MV_EDMA_BASE(ch), req_in);
2908 
2909     return ATA_OP_CONTINUES;
2910 }
2911 
2912 /* must be called with ATA channel locked and state_mtx held */
2913 static int
2914 ata_marvell_edma_end_transaction(struct ata_request *request)
2915 {
2916     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
2917     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
2918     int offset = (ch->unit > 3 ? 0x30014 : 0x20014);
2919     u_int32_t icr = ATA_INL(ctlr->r_res1, offset);
2920     int res;
2921 
2922     /* EDMA interrupt */
2923     if ((icr & (0x0001 << (ch->unit & 3)))) {
2924 	struct ata_marvell_response *response;
2925 	u_int32_t rsp_in, rsp_out;
2926 	int slot;
2927 
2928 	/* stop timeout */
2929 	callout_stop(&request->callout);
2930 
2931 	/* get response ptr's */
2932 	rsp_in = ATA_INL(ctlr->r_res1, 0x02020 + ATA_MV_EDMA_BASE(ch));
2933 	rsp_out = ATA_INL(ctlr->r_res1, 0x02024 + ATA_MV_EDMA_BASE(ch));
2934 	slot = (((rsp_in & ~0xffffff00) >> 3)) & 0x1f;
2935 	rsp_out &= 0xffffff00;
2936 	rsp_out += (slot << 3);
2937 	response = (struct ata_marvell_response *)
2938 		   (ch->dma->work + 1024 + (slot << 3));
2939 
2940 	/* record status for this request */
2941 	request->status = response->dev_status;
2942 	request->error = 0;
2943 
2944 	/* ack response */
2945 	ATA_OUTL(ctlr->r_res1, 0x02024 + ATA_MV_EDMA_BASE(ch), rsp_out);
2946 
2947 	/* update progress */
2948 	if (!(request->status & ATA_S_ERROR) &&
2949 	    !(request->flags & ATA_R_TIMEOUT))
2950 	    request->donecount = request->bytecount;
2951 
2952 	/* unload SG list */
2953 	ch->dma->unload(ch->dev);
2954 
2955 	res = ATA_OP_FINISHED;
2956     }
2957 
2958     /* legacy ATA interrupt */
2959     else {
2960 	res = ata_end_transaction(request);
2961     }
2962 
2963     /* ack interrupt */
2964     ATA_OUTL(ctlr->r_res1, offset, ~(icr & (0x0101 << (ch->unit & 3))));
2965     return res;
2966 }
2967 
2968 static void
2969 ata_marvell_edma_reset(device_t dev)
2970 {
2971     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
2972     struct ata_channel *ch = device_get_softc(dev);
2973 
2974     /* disable the EDMA machinery */
2975     ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000002);
2976     while ((ATA_INL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch)) & 0x00000001))
2977 	DELAY(10);
2978 
2979     /* clear SATA error register */
2980     ATA_IDX_OUTL(ch, ATA_SERROR, ATA_IDX_INL(ch, ATA_SERROR));
2981 
2982     /* clear any outstanding error interrupts */
2983     ATA_OUTL(ctlr->r_res1, 0x02008 + ATA_MV_EDMA_BASE(ch), 0x0);
2984 
2985     /* unmask all error interrupts */
2986     ATA_OUTL(ctlr->r_res1, 0x0200c + ATA_MV_EDMA_BASE(ch), ~0x0);
2987 
2988     /* enable channel and test for devices */
2989     if (ata_sata_phy_reset(dev))
2990 	ata_generic_reset(dev);
2991 
2992     /* enable EDMA machinery */
2993     ATA_OUTL(ctlr->r_res1, 0x02028 + ATA_MV_EDMA_BASE(ch), 0x00000001);
2994 }
2995 
2996 static void
2997 ata_marvell_edma_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs,
2998 			   int error)
2999 {
3000     struct ata_dmasetprd_args *args = xsc;
3001     struct ata_marvell_dma_prdentry *prd = args->dmatab;
3002     int i;
3003 
3004     if ((args->error = error))
3005 	return;
3006 
3007     for (i = 0; i < nsegs; i++) {
3008 	prd[i].addrlo = htole32(segs[i].ds_addr);
3009 	prd[i].count = htole32(segs[i].ds_len);
3010 	prd[i].addrhi = htole32((u_int64_t)segs[i].ds_addr >> 32);
3011     }
3012     prd[i - 1].count |= htole32(ATA_DMA_EOT);
3013 }
3014 
3015 static void
3016 ata_marvell_edma_dmainit(device_t dev)
3017 {
3018     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3019     struct ata_channel *ch = device_get_softc(dev);
3020 
3021     ata_dmainit(dev);
3022     if (ch->dma) {
3023 	/* note start and stop are not used here */
3024 	ch->dma->setprd = ata_marvell_edma_dmasetprd;
3025 
3026 	if (ATA_INL(ctlr->r_res1, 0x00d00) & 0x00000004)
3027 	    ch->dma->max_address = BUS_SPACE_MAXADDR;
3028     }
3029 }
3030 
3031 
3032 /*
3033  * National chipset support functions
3034  */
3035 int
3036 ata_national_ident(device_t dev)
3037 {
3038     struct ata_pci_controller *ctlr = device_get_softc(dev);
3039 
3040     /* this chip is a clone of the Cyrix chip, bugs and all */
3041     if (pci_get_devid(dev) == ATA_SC1100) {
3042 	device_set_desc(dev, "National Geode SC1100 ATA33 controller");
3043 	ctlr->chipinit = ata_national_chipinit;
3044 	return 0;
3045     }
3046     return ENXIO;
3047 }
3048 
3049 static int
3050 ata_national_chipinit(device_t dev)
3051 {
3052     struct ata_pci_controller *ctlr = device_get_softc(dev);
3053 
3054     if (ata_setup_interrupt(dev))
3055 	return ENXIO;
3056 
3057     ctlr->setmode = ata_national_setmode;
3058     return 0;
3059 }
3060 
3061 static void
3062 ata_national_setmode(device_t dev, int mode)
3063 {
3064     device_t gparent = GRANDPARENT(dev);
3065     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
3066     struct ata_device *atadev = device_get_softc(dev);
3067     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
3068     u_int32_t piotiming[] =
3069 	{ 0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010,
3070 	  0x00803020, 0x20102010, 0x00100010,
3071 	  0x00100010, 0x00100010, 0x00100010 };
3072     u_int32_t dmatiming[] = { 0x80077771, 0x80012121, 0x80002020 };
3073     u_int32_t udmatiming[] = { 0x80921250, 0x80911140, 0x80911030 };
3074     int error;
3075 
3076     ch->dma->alignment = 16;
3077     ch->dma->max_iosize = 126 * DEV_BSIZE;
3078 
3079     mode = ata_limit_mode(dev, mode, ATA_UDMA2);
3080 
3081     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
3082 
3083     if (bootverbose)
3084 	device_printf(dev, "%s setting %s on National chip\n",
3085 		      (error) ? "failed" : "success", ata_mode2str(mode));
3086     if (!error) {
3087 	if (mode >= ATA_UDMA0) {
3088 	    pci_write_config(gparent, 0x44 + (devno << 3),
3089 			     udmatiming[mode & ATA_MODE_MASK], 4);
3090 	}
3091 	else if (mode >= ATA_WDMA0) {
3092 	    pci_write_config(gparent, 0x44 + (devno << 3),
3093 			     dmatiming[mode & ATA_MODE_MASK], 4);
3094 	}
3095 	else {
3096 	    pci_write_config(gparent, 0x44 + (devno << 3),
3097 			     pci_read_config(gparent, 0x44 + (devno << 3), 4) |
3098 			     0x80000000, 4);
3099 	}
3100 	pci_write_config(gparent, 0x40 + (devno << 3),
3101 			 piotiming[ata_mode2idx(mode)], 4);
3102 	atadev->mode = mode;
3103     }
3104 }
3105 
3106 /*
3107  * NetCell chipset support functions
3108  */
3109 int
3110 ata_netcell_ident(device_t dev)
3111 {
3112     struct ata_pci_controller *ctlr = device_get_softc(dev);
3113 
3114     if (pci_get_devid(dev) == ATA_NETCELL_SR) {
3115 	device_set_desc(dev, "Netcell SyncRAID SR3000/5000 RAID Controller");
3116 	ctlr->chipinit = ata_netcell_chipinit;
3117 	return 0;
3118     }
3119     return ENXIO;
3120 }
3121 
3122 static int
3123 ata_netcell_chipinit(device_t dev)
3124 {
3125     struct ata_pci_controller *ctlr = device_get_softc(dev);
3126 
3127     if (ata_generic_chipinit(dev))
3128 	return ENXIO;
3129 
3130     ctlr->allocate = ata_netcell_allocate;
3131     return 0;
3132 }
3133 
3134 static int
3135 ata_netcell_allocate(device_t dev)
3136 {
3137     struct ata_channel *ch = device_get_softc(dev);
3138 
3139     /* setup the usual register normal pci style */
3140     if (ata_pci_allocate(dev))
3141 	return ENXIO;
3142 
3143     /* the NetCell only supports 16 bit PIO transfers */
3144     ch->flags |= ATA_USE_16BIT;
3145 
3146     return 0;
3147 }
3148 
3149 
3150 /*
3151  * nVidia chipset support functions
3152  */
3153 int
3154 ata_nvidia_ident(device_t dev)
3155 {
3156     struct ata_pci_controller *ctlr = device_get_softc(dev);
3157     struct ata_chip_id *idx;
3158     static struct ata_chip_id ids[] =
3159     {{ ATA_NFORCE1,         0, AMDNVIDIA, NVIDIA,  ATA_UDMA5, "nForce" },
3160      { ATA_NFORCE2,         0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce2" },
3161      { ATA_NFORCE2_PRO,     0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce2 Pro" },
3162      { ATA_NFORCE2_PRO_S1,  0, 0,         0,       ATA_SA150, "nForce2 Pro" },
3163      { ATA_NFORCE3,         0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce3" },
3164      { ATA_NFORCE3_PRO,     0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce3 Pro" },
3165      { ATA_NFORCE3_PRO_S1,  0, 0,         0,       ATA_SA150, "nForce3 Pro" },
3166      { ATA_NFORCE3_PRO_S2,  0, 0,         0,       ATA_SA150, "nForce3 Pro" },
3167      { ATA_NFORCE_MCP04,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP" },
3168      { ATA_NFORCE_MCP04_S1, 0, 0,         NV4,     ATA_SA150, "nForce MCP" },
3169      { ATA_NFORCE_MCP04_S2, 0, 0,         NV4,     ATA_SA150, "nForce MCP" },
3170      { ATA_NFORCE_CK804,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce CK804" },
3171      { ATA_NFORCE_CK804_S1, 0, 0,         NV4,     ATA_SA300, "nForce CK804" },
3172      { ATA_NFORCE_CK804_S2, 0, 0,         NV4,     ATA_SA300, "nForce CK804" },
3173      { ATA_NFORCE_MCP51,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP51" },
3174      { ATA_NFORCE_MCP51_S1, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP51" },
3175      { ATA_NFORCE_MCP51_S2, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP51" },
3176      { ATA_NFORCE_MCP55,    0, AMDNVIDIA, NVIDIA,  ATA_UDMA6, "nForce MCP55" },
3177      { ATA_NFORCE_MCP55_S1, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP55" },
3178      { ATA_NFORCE_MCP55_S2, 0, 0,         NV4|NVQ, ATA_SA300, "nForce MCP55" },
3179      { 0, 0, 0, 0, 0, 0}} ;
3180     char buffer[64] ;
3181 
3182     if (!(idx = ata_match_chip(dev, ids)))
3183 	return ENXIO;
3184 
3185     ksprintf(buffer, "nVidia %s %s controller",
3186 	    idx->text, ata_mode2str(idx->max_dma));
3187     device_set_desc_copy(dev, buffer);
3188     ctlr->chip = idx;
3189     ctlr->chipinit = ata_nvidia_chipinit;
3190     return 0;
3191 }
3192 
3193 static int
3194 ata_nvidia_chipinit(device_t dev)
3195 {
3196     struct ata_pci_controller *ctlr = device_get_softc(dev);
3197 
3198     if (ata_setup_interrupt(dev))
3199 	return ENXIO;
3200 
3201     if (ctlr->chip->max_dma >= ATA_SA150) {
3202 	if (pci_read_config(dev, PCIR_BAR(5), 1) & 1)
3203 	    ctlr->r_type2 = SYS_RES_IOPORT;
3204 	else
3205 	    ctlr->r_type2 = SYS_RES_MEMORY;
3206 	ctlr->r_rid2 = PCIR_BAR(5);
3207 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
3208 						   &ctlr->r_rid2, RF_ACTIVE))) {
3209 	    int offset = ctlr->chip->cfg2 & NV4 ? 0x0440 : 0x0010;
3210 
3211 	    ctlr->allocate = ata_nvidia_allocate;
3212 	    ctlr->reset = ata_nvidia_reset;
3213 
3214 	    /* enable control access */
3215 	    pci_write_config(dev, 0x50, pci_read_config(dev, 0x50, 1) | 0x04,1);
3216 
3217 	    if (ctlr->chip->cfg2 & NVQ) {
3218 		/* clear interrupt status */
3219 		ATA_OUTL(ctlr->r_res2, offset, 0x00ff00ff);
3220 
3221 		/* enable device and PHY state change interrupts */
3222 		ATA_OUTL(ctlr->r_res2, offset + 4, 0x000d000d);
3223 
3224 		/* disable NCQ support */
3225 		ATA_OUTL(ctlr->r_res2, 0x0400,
3226 			 ATA_INL(ctlr->r_res2, 0x0400) & 0xfffffff9);
3227 	    }
3228 	    else {
3229 		/* clear interrupt status */
3230 		ATA_OUTB(ctlr->r_res2, offset, 0xff);
3231 
3232 		/* enable device and PHY state change interrupts */
3233 		ATA_OUTB(ctlr->r_res2, offset + 1, 0xdd);
3234 	    }
3235 
3236 	    /* enable PCI interrupt */
3237 	    pci_write_config(dev, PCIR_COMMAND,
3238 			     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400,2);
3239 
3240 	}
3241 	ctlr->setmode = ata_sata_setmode;
3242     }
3243     else {
3244 	/* disable prefetch, postwrite */
3245 	pci_write_config(dev, 0x51, pci_read_config(dev, 0x51, 1) & 0x0f, 1);
3246 	ctlr->setmode = ata_via_family_setmode;
3247     }
3248     return 0;
3249 }
3250 
3251 static int
3252 ata_nvidia_allocate(device_t dev)
3253 {
3254     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3255     struct ata_channel *ch = device_get_softc(dev);
3256 
3257     /* setup the usual register normal pci style */
3258     if (ata_pci_allocate(dev))
3259 	return ENXIO;
3260 
3261     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
3262     ch->r_io[ATA_SSTATUS].offset = (ch->unit << 6);
3263     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
3264     ch->r_io[ATA_SERROR].offset = 0x04 + (ch->unit << 6);
3265     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
3266     ch->r_io[ATA_SCONTROL].offset = 0x08 + (ch->unit << 6);
3267 
3268     ch->hw.status = ata_nvidia_status;
3269     ch->flags |= ATA_NO_SLAVE;
3270 
3271     return 0;
3272 }
3273 
3274 static int
3275 ata_nvidia_status(device_t dev)
3276 {
3277     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3278     struct ata_channel *ch = device_get_softc(dev);
3279     int offset = ctlr->chip->cfg2 & NV4 ? 0x0440 : 0x0010;
3280     int shift = ch->unit << (ctlr->chip->cfg2 & NVQ ? 4 : 2);
3281     u_int32_t istatus = ATA_INL(ctlr->r_res2, offset);
3282 
3283     /* do we have any PHY events ? */
3284     if (istatus & (0x0c << shift))
3285 	ata_sata_phy_check_events(dev);
3286 
3287     /* clear interrupt(s) */
3288     ATA_OUTB(ctlr->r_res2, offset,
3289 	     (0x0f << shift) | (ctlr->chip->cfg2 & NVQ ? 0x00f000f0 : 0));
3290 
3291     /* do we have any device action ? */
3292     return (istatus & (0x01 << shift));
3293 }
3294 
3295 static void
3296 ata_nvidia_reset(device_t dev)
3297 {
3298     if (ata_sata_phy_reset(dev))
3299 	ata_generic_reset(dev);
3300 }
3301 
3302 
3303 /*
3304  * Promise chipset support functions
3305  */
3306 #define ATA_PDC_APKT_OFFSET     0x00000010
3307 #define ATA_PDC_HPKT_OFFSET     0x00000040
3308 #define ATA_PDC_ASG_OFFSET      0x00000080
3309 #define ATA_PDC_LSG_OFFSET      0x000000c0
3310 #define ATA_PDC_HSG_OFFSET      0x00000100
3311 #define ATA_PDC_CHN_OFFSET      0x00000400
3312 #define ATA_PDC_BUF_BASE        0x00400000
3313 #define ATA_PDC_BUF_OFFSET      0x00100000
3314 #define ATA_PDC_MAX_HPKT        8
3315 #define ATA_PDC_WRITE_REG       0x00
3316 #define ATA_PDC_WRITE_CTL       0x0e
3317 #define ATA_PDC_WRITE_END       0x08
3318 #define ATA_PDC_WAIT_NBUSY      0x10
3319 #define ATA_PDC_WAIT_READY      0x18
3320 #define ATA_PDC_1B              0x20
3321 #define ATA_PDC_2B              0x40
3322 
3323 struct host_packet {
3324     u_int32_t                   addr;
3325     TAILQ_ENTRY(host_packet)    chain;
3326 };
3327 
3328 struct ata_promise_sx4 {
3329     struct spinlock             mtx;
3330     TAILQ_HEAD(, host_packet)   queue;
3331     int                         busy;
3332 };
3333 
3334 int
3335 ata_promise_ident(device_t dev)
3336 {
3337     struct ata_pci_controller *ctlr = device_get_softc(dev);
3338     struct ata_chip_id *idx;
3339     static struct ata_chip_id ids[] =
3340     {{ ATA_PDC20246,  0, PROLD, 0x00,    ATA_UDMA2, "PDC20246" },
3341      { ATA_PDC20262,  0, PRNEW, 0x00,    ATA_UDMA4, "PDC20262" },
3342      { ATA_PDC20263,  0, PRNEW, 0x00,    ATA_UDMA4, "PDC20263" },
3343      { ATA_PDC20265,  0, PRNEW, 0x00,    ATA_UDMA5, "PDC20265" },
3344      { ATA_PDC20267,  0, PRNEW, 0x00,    ATA_UDMA5, "PDC20267" },
3345      { ATA_PDC20268,  0, PRTX,  PRTX4,   ATA_UDMA5, "PDC20268" },
3346      { ATA_PDC20269,  0, PRTX,  0x00,    ATA_UDMA6, "PDC20269" },
3347      { ATA_PDC20270,  0, PRTX,  PRTX4,   ATA_UDMA5, "PDC20270" },
3348      { ATA_PDC20271,  0, PRTX,  0x00,    ATA_UDMA6, "PDC20271" },
3349      { ATA_PDC20275,  0, PRTX,  0x00,    ATA_UDMA6, "PDC20275" },
3350      { ATA_PDC20276,  0, PRTX,  PRSX6K,  ATA_UDMA6, "PDC20276" },
3351      { ATA_PDC20277,  0, PRTX,  0x00,    ATA_UDMA6, "PDC20277" },
3352      { ATA_PDC20318,  0, PRMIO, PRSATA,  ATA_SA150, "PDC20318" },
3353      { ATA_PDC20319,  0, PRMIO, PRSATA,  ATA_SA150, "PDC20319" },
3354      { ATA_PDC20371,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20371" },
3355      { ATA_PDC20375,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20375" },
3356      { ATA_PDC20376,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20376" },
3357      { ATA_PDC20377,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20377" },
3358      { ATA_PDC20378,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20378" },
3359      { ATA_PDC20379,  0, PRMIO, PRCMBO,  ATA_SA150, "PDC20379" },
3360      { ATA_PDC20571,  0, PRMIO, PRCMBO2, ATA_SA150, "PDC20571" },
3361      { ATA_PDC20575,  0, PRMIO, PRCMBO2, ATA_SA150, "PDC20575" },
3362      { ATA_PDC20579,  0, PRMIO, PRCMBO2, ATA_SA150, "PDC20579" },
3363      { ATA_PDC20771,  0, PRMIO, PRCMBO2, ATA_SA300, "PDC20771" },
3364      { ATA_PDC40775,  0, PRMIO, PRCMBO2, ATA_SA300, "PDC40775" },
3365      { ATA_PDC20617,  0, PRMIO, PRPATA,  ATA_UDMA6, "PDC20617" },
3366      { ATA_PDC20618,  0, PRMIO, PRPATA,  ATA_UDMA6, "PDC20618" },
3367      { ATA_PDC20619,  0, PRMIO, PRPATA,  ATA_UDMA6, "PDC20619" },
3368      { ATA_PDC20620,  0, PRMIO, PRPATA,  ATA_UDMA6, "PDC20620" },
3369      { ATA_PDC20621,  0, PRMIO, PRSX4X,  ATA_UDMA5, "PDC20621" },
3370      { ATA_PDC20622,  0, PRMIO, PRSX4X,  ATA_SA150, "PDC20622" },
3371      { ATA_PDC40518,  0, PRMIO, PRSATA2, ATA_SA150, "PDC40518" },
3372      { ATA_PDC40519,  0, PRMIO, PRSATA2, ATA_SA150, "PDC40519" },
3373      { ATA_PDC40718,  0, PRMIO, PRSATA2, ATA_SA300, "PDC40718" },
3374      { ATA_PDC40719,  0, PRMIO, PRSATA2, ATA_SA300, "PDC40719" },
3375      { ATA_PDC40779,  0, PRMIO, PRSATA2, ATA_SA300, "PDC40779" },
3376      { 0, 0, 0, 0, 0, 0}};
3377     char buffer[64];
3378     uintptr_t devid = 0;
3379 
3380     if (!(idx = ata_match_chip(dev, ids)))
3381 	return ENXIO;
3382 
3383     /* if we are on a SuperTrak SX6000 dont attach */
3384     if ((idx->cfg2 & PRSX6K) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
3385 	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
3386 		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
3387 	devid == ATA_I960RM)
3388 	return ENXIO;
3389 
3390     strcpy(buffer, "Promise ");
3391     strcat(buffer, idx->text);
3392 
3393     /* if we are on a FastTrak TX4, adjust the interrupt resource */
3394     if ((idx->cfg2 & PRTX4) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
3395 	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
3396 		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
3397 	((devid == ATA_DEC_21150) || (devid == ATA_DEC_21150_1))) {
3398 	static long start = 0, end = 0;
3399 
3400 	if (pci_get_slot(dev) == 1) {
3401 	    bus_get_resource(dev, SYS_RES_IRQ, 0, &start, &end);
3402 	    strcat(buffer, " (channel 0+1)");
3403 	}
3404 	else if (pci_get_slot(dev) == 2 && start && end) {
3405 	    bus_set_resource(dev, SYS_RES_IRQ, 0, start, end);
3406 	    strcat(buffer, " (channel 2+3)");
3407 	}
3408 	else {
3409 	    start = end = 0;
3410 	}
3411     }
3412     ksprintf(buffer, "%s %s controller", buffer, ata_mode2str(idx->max_dma));
3413     device_set_desc_copy(dev, buffer);
3414     ctlr->chip = idx;
3415     ctlr->chipinit = ata_promise_chipinit;
3416     return 0;
3417 }
3418 
3419 static int
3420 ata_promise_chipinit(device_t dev)
3421 {
3422     struct ata_pci_controller *ctlr = device_get_softc(dev);
3423     int fake_reg, stat_reg;
3424 
3425     if (ata_setup_interrupt(dev))
3426 	return ENXIO;
3427 
3428     switch  (ctlr->chip->cfg1) {
3429     case PRNEW:
3430 	/* setup clocks */
3431 	ATA_OUTB(ctlr->r_res1, 0x11, ATA_INB(ctlr->r_res1, 0x11) | 0x0a);
3432 
3433 	ctlr->dmainit = ata_promise_dmainit;
3434 	/* FALLTHROUGH */
3435 
3436     case PROLD:
3437 	/* enable burst mode */
3438 	ATA_OUTB(ctlr->r_res1, 0x1f, ATA_INB(ctlr->r_res1, 0x1f) | 0x01);
3439 	ctlr->allocate = ata_promise_allocate;
3440 	ctlr->setmode = ata_promise_setmode;
3441 	return 0;
3442 
3443     case PRTX:
3444 	ctlr->allocate = ata_promise_tx2_allocate;
3445 	ctlr->setmode = ata_promise_setmode;
3446 	return 0;
3447 
3448     case PRMIO:
3449 	ctlr->r_type1 = SYS_RES_MEMORY;
3450 	ctlr->r_rid1 = PCIR_BAR(4);
3451 	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
3452 						    &ctlr->r_rid1, RF_ACTIVE)))
3453 	    goto failnfree;
3454 
3455 	ctlr->r_type2 = SYS_RES_MEMORY;
3456 	ctlr->r_rid2 = PCIR_BAR(3);
3457 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
3458 						    &ctlr->r_rid2, RF_ACTIVE)))
3459 	    goto failnfree;
3460 
3461 	if (ctlr->chip->cfg2 == PRSX4X) {
3462 	    struct ata_promise_sx4 *hpkt;
3463 	    u_int32_t dimm = ATA_INL(ctlr->r_res2, 0x000c0080);
3464 
3465 	    if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
3466 		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS,
3467 			       ata_promise_sx4_intr, ctlr, &ctlr->handle, NULL)) {
3468 		device_printf(dev, "unable to setup interrupt\n");
3469 		goto failnfree;
3470 	    }
3471 
3472 	    /* print info about cache memory */
3473 	    device_printf(dev, "DIMM size %dMB @ 0x%08x%s\n",
3474 			  (((dimm >> 16) & 0xff)-((dimm >> 24) & 0xff)+1) << 4,
3475 			  ((dimm >> 24) & 0xff),
3476 			  ATA_INL(ctlr->r_res2, 0x000c0088) & (1<<16) ?
3477 			  " ECC enabled" : "" );
3478 
3479 	    /* adjust cache memory parameters */
3480 	    ATA_OUTL(ctlr->r_res2, 0x000c000c,
3481 		     (ATA_INL(ctlr->r_res2, 0x000c000c) & 0xffff0000));
3482 
3483 	    /* setup host packet controls */
3484 	    hpkt = kmalloc(sizeof(struct ata_promise_sx4),
3485 			  M_TEMP, M_INTWAIT | M_ZERO);
3486 	    spin_init(&hpkt->mtx);
3487 	    TAILQ_INIT(&hpkt->queue);
3488 	    hpkt->busy = 0;
3489 	    device_set_ivars(dev, hpkt);
3490 	    ctlr->allocate = ata_promise_mio_allocate;
3491 	    ctlr->reset = ata_promise_mio_reset;
3492 	    ctlr->dmainit = ata_promise_mio_dmainit;
3493 	    ctlr->setmode = ata_promise_setmode;
3494 	    ctlr->channels = 4;
3495 	    return 0;
3496 	}
3497 
3498 	/* mio type controllers need an interrupt intercept */
3499 	if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
3500 		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS,
3501 			       ata_promise_mio_intr, ctlr, &ctlr->handle, NULL)) {
3502 		device_printf(dev, "unable to setup interrupt\n");
3503 		goto failnfree;
3504 	}
3505 
3506 	switch (ctlr->chip->cfg2) {
3507 	case PRPATA:
3508 	    ctlr->channels = ((ATA_INL(ctlr->r_res2, 0x48) & 0x01) > 0) +
3509 			     ((ATA_INL(ctlr->r_res2, 0x48) & 0x02) > 0) + 2;
3510 	    goto sata150;
3511 	case PRCMBO:
3512 	    ctlr->channels = 3;
3513 	    goto sata150;
3514 	case PRSATA:
3515 	    ctlr->channels = 4;
3516 sata150:
3517 	    fake_reg = 0x60;
3518 	    stat_reg = 0x6c;
3519 	    break;
3520 
3521 	case PRCMBO2:
3522 	    ctlr->channels = 3;
3523 	    goto sataii;
3524 	case PRSATA2:
3525 	default:
3526 	    ctlr->channels = 4;
3527 sataii:
3528 	    fake_reg = 0x54;
3529 	    stat_reg = 0x60;
3530 	    break;
3531 	}
3532 
3533 	/* prime fake interrupt register */
3534 	ATA_OUTL(ctlr->r_res2, fake_reg, 0xffffffff);
3535 
3536 	/* clear SATA status */
3537 	ATA_OUTL(ctlr->r_res2, stat_reg, 0x000000ff);
3538 
3539 	ctlr->allocate = ata_promise_mio_allocate;
3540 	ctlr->reset = ata_promise_mio_reset;
3541 	ctlr->dmainit = ata_promise_mio_dmainit;
3542 	ctlr->setmode = ata_promise_mio_setmode;
3543 
3544 	return 0;
3545     }
3546 
3547 failnfree:
3548     if (ctlr->r_res2)
3549 	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
3550     if (ctlr->r_res1)
3551 	bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
3552     return ENXIO;
3553 }
3554 
3555 static int
3556 ata_promise_allocate(device_t dev)
3557 {
3558     struct ata_channel *ch = device_get_softc(dev);
3559 
3560     if (ata_pci_allocate(dev))
3561 	return ENXIO;
3562 
3563     ch->hw.status = ata_promise_status;
3564     return 0;
3565 }
3566 
3567 static int
3568 ata_promise_status(device_t dev)
3569 {
3570     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3571     struct ata_channel *ch = device_get_softc(dev);
3572 
3573     if (ATA_INL(ctlr->r_res1, 0x1c) & (ch->unit ? 0x00004000 : 0x00000400)) {
3574 	return ata_pci_status(dev);
3575     }
3576     return 0;
3577 }
3578 
3579 static int
3580 ata_promise_dmastart(device_t dev)
3581 {
3582     struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev));
3583     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
3584     struct ata_device *atadev  = device_get_softc(dev);
3585 
3586     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
3587 	ATA_OUTB(ctlr->r_res1, 0x11,
3588 		 ATA_INB(ctlr->r_res1, 0x11) | (ch->unit ? 0x08 : 0x02));
3589 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20,
3590 		 ((ch->dma->flags & ATA_DMA_READ) ? 0x05000000 : 0x06000000) |
3591 		 (ch->dma->cur_iosize >> 1));
3592     }
3593     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
3594 		 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
3595     ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, ch->dma->sg_bus);
3596     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
3597 		 ((ch->dma->flags & ATA_DMA_READ) ? ATA_BMCMD_WRITE_READ : 0) |
3598 		 ATA_BMCMD_START_STOP);
3599     ch->flags |= ATA_DMA_ACTIVE;
3600     return 0;
3601 }
3602 
3603 static int
3604 ata_promise_dmastop(device_t dev)
3605 {
3606     struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev));
3607     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
3608     struct ata_device *atadev  = device_get_softc(dev);
3609     int error;
3610 
3611     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
3612 	ATA_OUTB(ctlr->r_res1, 0x11,
3613 		 ATA_INB(ctlr->r_res1, 0x11) & ~(ch->unit ? 0x08 : 0x02));
3614 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20, 0);
3615     }
3616     error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT);
3617     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
3618 		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
3619     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
3620     ch->flags &= ~ATA_DMA_ACTIVE;
3621     return error;
3622 }
3623 
3624 static void
3625 ata_promise_dmareset(device_t dev)
3626 {
3627     struct ata_channel *ch = device_get_softc(dev);
3628 
3629     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
3630 		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
3631     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
3632     ch->flags &= ~ATA_DMA_ACTIVE;
3633 }
3634 
3635 static void
3636 ata_promise_dmainit(device_t dev)
3637 {
3638     struct ata_channel *ch = device_get_softc(dev);
3639 
3640     ata_dmainit(dev);
3641     if (ch->dma) {
3642 	ch->dma->start = ata_promise_dmastart;
3643 	ch->dma->stop = ata_promise_dmastop;
3644 	ch->dma->reset = ata_promise_dmareset;
3645     }
3646 }
3647 
3648 static void
3649 ata_promise_setmode(device_t dev, int mode)
3650 {
3651     device_t gparent = GRANDPARENT(dev);
3652     struct ata_pci_controller *ctlr = device_get_softc(gparent);
3653     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
3654     struct ata_device *atadev = device_get_softc(dev);
3655     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
3656     int error;
3657     u_int32_t timings[][2] = {
3658     /*    PROLD       PRNEW                mode */
3659 	{ 0x004ff329, 0x004fff2f },     /* PIO 0 */
3660 	{ 0x004fec25, 0x004ff82a },     /* PIO 1 */
3661 	{ 0x004fe823, 0x004ff026 },     /* PIO 2 */
3662 	{ 0x004fe622, 0x004fec24 },     /* PIO 3 */
3663 	{ 0x004fe421, 0x004fe822 },     /* PIO 4 */
3664 	{ 0x004567f3, 0x004acef6 },     /* MWDMA 0 */
3665 	{ 0x004467f3, 0x0048cef6 },     /* MWDMA 1 */
3666 	{ 0x004367f3, 0x0046cef6 },     /* MWDMA 2 */
3667 	{ 0x004367f3, 0x0046cef6 },     /* UDMA 0 */
3668 	{ 0x004247f3, 0x00448ef6 },     /* UDMA 1 */
3669 	{ 0x004127f3, 0x00436ef6 },     /* UDMA 2 */
3670 	{ 0,          0x00424ef6 },     /* UDMA 3 */
3671 	{ 0,          0x004127f3 },     /* UDMA 4 */
3672 	{ 0,          0x004127f3 }      /* UDMA 5 */
3673     };
3674 
3675     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
3676 
3677     switch (ctlr->chip->cfg1) {
3678     case PROLD:
3679     case PRNEW:
3680 	if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x50, 2) &
3681 				 (ch->unit ? 1 << 11 : 1 << 10))) {
3682 	    ata_print_cable(dev, "controller");
3683 	    mode = ATA_UDMA2;
3684 	}
3685 	if (ata_atapi(dev) && mode > ATA_PIO_MAX)
3686 	    mode = ata_limit_mode(dev, mode, ATA_PIO_MAX);
3687 	break;
3688 
3689     case PRTX:
3690 	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
3691 	if (mode > ATA_UDMA2 &&
3692 	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
3693 	    ata_print_cable(dev, "controller");
3694 	    mode = ATA_UDMA2;
3695 	}
3696 	break;
3697 
3698     case PRMIO:
3699 	if (mode > ATA_UDMA2 &&
3700 	    (ATA_INL(ctlr->r_res2,
3701 		     (ctlr->chip->cfg2 & PRSX4X ? 0x000c0260 : 0x0260) +
3702 		     (ch->unit << 7)) & 0x01000000)) {
3703 	    ata_print_cable(dev, "controller");
3704 	    mode = ATA_UDMA2;
3705 	}
3706 	break;
3707     }
3708 
3709     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
3710 
3711     if (bootverbose)
3712 	device_printf(dev, "%ssetting %s on %s chip\n",
3713 		     (error) ? "FAILURE " : "",
3714 		     ata_mode2str(mode), ctlr->chip->text);
3715     if (!error) {
3716 	if (ctlr->chip->cfg1 < PRTX)
3717 	    pci_write_config(gparent, 0x60 + (devno << 2),
3718 			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
3719 	atadev->mode = mode;
3720     }
3721     return;
3722 }
3723 
3724 static int
3725 ata_promise_tx2_allocate(device_t dev)
3726 {
3727     struct ata_channel *ch = device_get_softc(dev);
3728 
3729     if (ata_pci_allocate(dev))
3730 	return ENXIO;
3731 
3732     ch->hw.status = ata_promise_tx2_status;
3733     return 0;
3734 }
3735 
3736 static int
3737 ata_promise_tx2_status(device_t dev)
3738 {
3739     struct ata_channel *ch = device_get_softc(dev);
3740 
3741     ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
3742     if (ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x20) {
3743 	return ata_pci_status(dev);
3744     }
3745     return 0;
3746 }
3747 
3748 static int
3749 ata_promise_mio_allocate(device_t dev)
3750 {
3751     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3752     struct ata_channel *ch = device_get_softc(dev);
3753     int offset = (ctlr->chip->cfg2 & PRSX4X) ? 0x000c0000 : 0;
3754     int i;
3755 
3756     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
3757 	ch->r_io[i].res = ctlr->r_res2;
3758 	ch->r_io[i].offset = offset + 0x0200 + (i << 2) + (ch->unit << 7);
3759     }
3760     ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
3761     ch->r_io[ATA_CONTROL].offset = offset + 0x0238 + (ch->unit << 7);
3762     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
3763     ata_default_registers(dev);
3764     if ((ctlr->chip->cfg2 & (PRSATA | PRSATA2)) ||
3765 	((ctlr->chip->cfg2 & (PRCMBO | PRCMBO2)) && ch->unit < 2)) {
3766 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
3767 	ch->r_io[ATA_SSTATUS].offset = 0x400 + (ch->unit << 8);
3768 	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
3769 	ch->r_io[ATA_SERROR].offset = 0x404 + (ch->unit << 8);
3770 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
3771 	ch->r_io[ATA_SCONTROL].offset = 0x408 + (ch->unit << 8);
3772 	ch->flags |= ATA_NO_SLAVE;
3773     }
3774     ch->flags |= ATA_USE_16BIT;
3775 
3776     ata_generic_hw(dev);
3777     if (ctlr->chip->cfg2 & PRSX4X) {
3778 	ch->hw.command = ata_promise_sx4_command;
3779     }
3780     else {
3781 	ch->hw.command = ata_promise_mio_command;
3782 	ch->hw.status = ata_promise_mio_status;
3783      }
3784     return 0;
3785 }
3786 
3787 static void
3788 ata_promise_mio_intr(void *data)
3789 {
3790     struct ata_pci_controller *ctlr = data;
3791     struct ata_channel *ch;
3792     u_int32_t vector;
3793     int unit, fake_reg;
3794 
3795     switch (ctlr->chip->cfg2) {
3796     case PRPATA:
3797     case PRCMBO:
3798     case PRSATA:
3799 	fake_reg = 0x60;
3800 	break;
3801     case PRCMBO2:
3802     case PRSATA2:
3803     default:
3804 	fake_reg = 0x54;
3805 	break;
3806     }
3807 
3808     /*
3809      * since reading interrupt status register on early "mio" chips
3810      * clears the status bits we cannot read it for each channel later on
3811      * in the generic interrupt routine.
3812      * store the bits in an unused register in the chip so we can read
3813      * it from there safely to get around this "feature".
3814      */
3815     vector = ATA_INL(ctlr->r_res2, 0x040);
3816     ATA_OUTL(ctlr->r_res2, 0x040, vector);
3817     ATA_OUTL(ctlr->r_res2, fake_reg, vector);
3818 
3819     for (unit = 0; unit < ctlr->channels; unit++) {
3820 	if ((ch = ctlr->interrupt[unit].argument))
3821 	    ctlr->interrupt[unit].function(ch);
3822     }
3823 
3824     ATA_OUTL(ctlr->r_res2, fake_reg, 0xffffffff);
3825 }
3826 
3827 static int
3828 ata_promise_mio_status(device_t dev)
3829 {
3830     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3831     struct ata_channel *ch = device_get_softc(dev);
3832     struct ata_connect_task *tp;
3833     u_int32_t fake_reg, stat_reg, vector, status;
3834 
3835     switch (ctlr->chip->cfg2) {
3836     case PRPATA:
3837     case PRCMBO:
3838     case PRSATA:
3839 	fake_reg = 0x60;
3840 	stat_reg = 0x6c;
3841 	break;
3842     case PRCMBO2:
3843     case PRSATA2:
3844     default:
3845 	fake_reg = 0x54;
3846 	stat_reg = 0x60;
3847 	break;
3848     }
3849 
3850     /* read and acknowledge interrupt */
3851     vector = ATA_INL(ctlr->r_res2, fake_reg);
3852 
3853     /* read and clear interface status */
3854     status = ATA_INL(ctlr->r_res2, stat_reg);
3855     ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
3856 
3857     /* check for and handle disconnect events */
3858     if ((status & (0x00000001 << ch->unit)) &&
3859 	(tp = (struct ata_connect_task *)
3860 	      kmalloc(sizeof(struct ata_connect_task),
3861 		     M_ATA, M_INTWAIT | M_ZERO))) {
3862 
3863 	if (bootverbose)
3864 	    device_printf(ch->dev, "DISCONNECT requested\n");
3865 	tp->action = ATA_C_DETACH;
3866 	tp->dev = ch->dev;
3867 	TASK_INIT(&tp->task, 0, ata_sata_phy_event, tp);
3868 	taskqueue_enqueue(taskqueue_thread[mycpuid], &tp->task);
3869     }
3870 
3871     /* check for and handle connect events */
3872     if ((status & (0x00000010 << ch->unit)) &&
3873 	(tp = (struct ata_connect_task *)
3874 	      kmalloc(sizeof(struct ata_connect_task),
3875 		     M_ATA, M_INTWAIT | M_ZERO))) {
3876 
3877 	if (bootverbose)
3878 	    device_printf(ch->dev, "CONNECT requested\n");
3879 	tp->action = ATA_C_ATTACH;
3880 	tp->dev = ch->dev;
3881 	TASK_INIT(&tp->task, 0, ata_sata_phy_event, tp);
3882 	taskqueue_enqueue(taskqueue_thread[mycpuid], &tp->task);
3883     }
3884 
3885     /* do we have any device action ? */
3886     return (vector & (1 << (ch->unit + 1)));
3887 }
3888 
3889 static int
3890 ata_promise_mio_command(struct ata_request *request)
3891 {
3892     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
3893     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
3894     u_int32_t *wordp = (u_int32_t *)ch->dma->work;
3895 
3896     ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
3897 
3898     /* XXX SOS add ATAPI commands support later */
3899     switch (request->u.ata.command) {
3900     default:
3901 	return ata_generic_command(request);
3902 
3903     case ATA_READ_DMA:
3904     case ATA_READ_DMA48:
3905 	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
3906 	break;
3907 
3908     case ATA_WRITE_DMA:
3909     case ATA_WRITE_DMA48:
3910 	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
3911 	break;
3912     }
3913     wordp[1] = htole32(ch->dma->sg_bus);
3914     wordp[2] = 0;
3915     ata_promise_apkt((u_int8_t*)wordp, request);
3916 
3917     ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma->work_bus);
3918     return 0;
3919 }
3920 
3921 static void
3922 ata_promise_mio_reset(device_t dev)
3923 {
3924     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
3925     struct ata_channel *ch = device_get_softc(dev);
3926     struct ata_promise_sx4 *hpktp;
3927 
3928     switch (ctlr->chip->cfg2) {
3929     case PRSX4X:
3930 
3931 	/* softreset channel ATA module */
3932 	hpktp = device_get_ivars(ctlr->dev);
3933 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
3934 	ata_udelay(1000);
3935 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
3936 		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
3937 		  ~0x00003f9f) | (ch->unit + 1));
3938 
3939 	/* softreset HOST module */ /* XXX SOS what about other outstandings */
3940 	spin_lock_wr(&hpktp->mtx);
3941 	ATA_OUTL(ctlr->r_res2, 0xc012c,
3942 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
3943 	DELAY(10);
3944 	ATA_OUTL(ctlr->r_res2, 0xc012c,
3945 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
3946 	hpktp->busy = 0;
3947 	spin_unlock_wr(&hpktp->mtx);
3948 	ata_generic_reset(dev);
3949 	break;
3950 
3951     case PRPATA:
3952     case PRCMBO:
3953     case PRSATA:
3954 	if ((ctlr->chip->cfg2 == PRSATA) ||
3955 	    ((ctlr->chip->cfg2 == PRCMBO) && (ch->unit < 2))) {
3956 
3957 	    /* mask plug/unplug intr */
3958 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
3959 	}
3960 
3961 	/* softreset channels ATA module */
3962 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
3963 	ata_udelay(10000);
3964 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
3965 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
3966 		  ~0x00003f9f) | (ch->unit + 1));
3967 
3968 	if ((ctlr->chip->cfg2 == PRSATA) ||
3969 	    ((ctlr->chip->cfg2 == PRCMBO) && (ch->unit < 2))) {
3970 
3971 	    if (ata_sata_phy_reset(dev))
3972 		ata_generic_reset(dev);
3973 
3974 	    /* reset and enable plug/unplug intr */
3975 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
3976 	}
3977 	else
3978 	    ata_generic_reset(dev);
3979 	break;
3980 
3981     case PRCMBO2:
3982     case PRSATA2:
3983 	if ((ctlr->chip->cfg2 == PRSATA2) ||
3984 	    ((ctlr->chip->cfg2 == PRCMBO2) && (ch->unit < 2))) {
3985 	    /* set portmultiplier port */
3986 	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
3987 
3988 	    /* mask plug/unplug intr */
3989 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
3990 	}
3991 
3992 	/* softreset channels ATA module */
3993 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
3994 	ata_udelay(10000);
3995 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
3996 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
3997 		  ~0x00003f9f) | (ch->unit + 1));
3998 
3999 	if ((ctlr->chip->cfg2 == PRSATA2) ||
4000 	    ((ctlr->chip->cfg2 == PRCMBO2) && (ch->unit < 2))) {
4001 
4002 	    /* set PHY mode to "improved" */
4003 	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
4004 		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
4005 		     ~0x00000003) | 0x00000001);
4006 
4007 	    if (ata_sata_phy_reset(dev))
4008 		ata_generic_reset(dev);
4009 
4010 	    /* reset and enable plug/unplug intr */
4011 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
4012 
4013 	    /* set portmultiplier port */
4014 	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
4015 	}
4016 	else
4017 	    ata_generic_reset(dev);
4018 	break;
4019 
4020     }
4021 }
4022 
4023 static void
4024 ata_promise_mio_dmainit(device_t dev)
4025 {
4026     /* note start and stop are not used here */
4027     ata_dmainit(dev);
4028 }
4029 
4030 static void
4031 ata_promise_mio_setmode(device_t dev, int mode)
4032 {
4033     device_t gparent = GRANDPARENT(dev);
4034     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4035     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
4036 
4037     if ( (ctlr->chip->cfg2 == PRSATA) ||
4038 	((ctlr->chip->cfg2 == PRCMBO) && (ch->unit < 2)) ||
4039 	(ctlr->chip->cfg2 == PRSATA2) ||
4040 	((ctlr->chip->cfg2 == PRCMBO2) && (ch->unit < 2)))
4041 	ata_sata_setmode(dev, mode);
4042     else
4043 	ata_promise_setmode(dev, mode);
4044 }
4045 
4046 static void
4047 ata_promise_sx4_intr(void *data)
4048 {
4049     struct ata_pci_controller *ctlr = data;
4050     struct ata_channel *ch;
4051     u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
4052     int unit;
4053 
4054     for (unit = 0; unit < ctlr->channels; unit++) {
4055 	if (vector & (1 << (unit + 1)))
4056 	    if ((ch = ctlr->interrupt[unit].argument))
4057 		ctlr->interrupt[unit].function(ch);
4058 	if (vector & (1 << (unit + 5)))
4059 	    if ((ch = ctlr->interrupt[unit].argument))
4060 		ata_promise_queue_hpkt(ctlr,
4061 				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
4062 					       ATA_PDC_HPKT_OFFSET));
4063 	if (vector & (1 << (unit + 9))) {
4064 	    ata_promise_next_hpkt(ctlr);
4065 	    if ((ch = ctlr->interrupt[unit].argument))
4066 		ctlr->interrupt[unit].function(ch);
4067 	}
4068 	if (vector & (1 << (unit + 13))) {
4069 	    ata_promise_next_hpkt(ctlr);
4070 	    if ((ch = ctlr->interrupt[unit].argument))
4071 		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
4072 			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
4073 			 ATA_PDC_APKT_OFFSET));
4074 	}
4075     }
4076 }
4077 
4078 static int
4079 ata_promise_sx4_command(struct ata_request *request)
4080 {
4081     device_t gparent = GRANDPARENT(request->dev);
4082     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4083     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
4084     struct ata_dma_prdentry *prd = ch->dma->sg;
4085     caddr_t window = rman_get_virtual(ctlr->r_res1);
4086     u_int32_t *wordp;
4087     int i, idx, length = 0;
4088 
4089     /* XXX SOS add ATAPI commands support later */
4090     switch (request->u.ata.command) {
4091 
4092     default:
4093 	return -1;
4094 
4095     case ATA_ATA_IDENTIFY:
4096     case ATA_READ:
4097     case ATA_READ48:
4098     case ATA_READ_MUL:
4099     case ATA_READ_MUL48:
4100     case ATA_WRITE:
4101     case ATA_WRITE48:
4102     case ATA_WRITE_MUL:
4103     case ATA_WRITE_MUL48:
4104 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
4105 	return ata_generic_command(request);
4106 
4107     case ATA_SETFEATURES:
4108     case ATA_FLUSHCACHE:
4109     case ATA_FLUSHCACHE48:
4110     case ATA_SLEEP:
4111     case ATA_SET_MULTI:
4112 	wordp = (u_int32_t *)
4113 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
4114 	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
4115 	wordp[1] = 0;
4116 	wordp[2] = 0;
4117 	ata_promise_apkt((u_int8_t *)wordp, request);
4118 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
4119 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
4120 	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
4121 		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
4122 	return 0;
4123 
4124     case ATA_READ_DMA:
4125     case ATA_READ_DMA48:
4126     case ATA_WRITE_DMA:
4127     case ATA_WRITE_DMA48:
4128 	wordp = (u_int32_t *)
4129 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
4130 	i = idx = 0;
4131 	do {
4132 	    wordp[idx++] = prd[i].addr;
4133 	    wordp[idx++] = prd[i].count;
4134 	    length += (prd[i].count & ~ATA_DMA_EOT);
4135 	} while (!(prd[i++].count & ATA_DMA_EOT));
4136 
4137 	wordp = (u_int32_t *)
4138 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
4139 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
4140 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
4141 
4142 	wordp = (u_int32_t *)
4143 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
4144 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
4145 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
4146 
4147 	wordp = (u_int32_t *)
4148 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
4149 	if (request->flags & ATA_R_READ)
4150 	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
4151 	if (request->flags & ATA_R_WRITE)
4152 	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
4153 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
4154 	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
4155 	wordp[3] = 0;
4156 
4157 	wordp = (u_int32_t *)
4158 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
4159 	if (request->flags & ATA_R_READ)
4160 	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
4161 	if (request->flags & ATA_R_WRITE)
4162 	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
4163 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
4164 	wordp[2] = 0;
4165 	ata_promise_apkt((u_int8_t *)wordp, request);
4166 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
4167 
4168 	if (request->flags & ATA_R_READ) {
4169 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
4170 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
4171 	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
4172 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
4173 	}
4174 	if (request->flags & ATA_R_WRITE) {
4175 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
4176 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
4177 	    ata_promise_queue_hpkt(ctlr,
4178 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
4179 	}
4180 	return 0;
4181     }
4182 }
4183 
4184 static int
4185 ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
4186 {
4187     struct ata_device *atadev = device_get_softc(request->dev);
4188     int i = 12;
4189 
4190     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
4191     bytep[i++] = ATA_D_IBM | ATA_D_LBA | atadev->unit;
4192     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
4193     bytep[i++] = ATA_A_4BIT;
4194 
4195     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
4196 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
4197 	bytep[i++] = request->u.ata.feature >> 8;
4198 	bytep[i++] = request->u.ata.feature;
4199 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
4200 	bytep[i++] = request->u.ata.count >> 8;
4201 	bytep[i++] = request->u.ata.count;
4202 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
4203 	bytep[i++] = request->u.ata.lba >> 24;
4204 	bytep[i++] = request->u.ata.lba;
4205 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
4206 	bytep[i++] = request->u.ata.lba >> 32;
4207 	bytep[i++] = request->u.ata.lba >> 8;
4208 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
4209 	bytep[i++] = request->u.ata.lba >> 40;
4210 	bytep[i++] = request->u.ata.lba >> 16;
4211 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
4212 	bytep[i++] = ATA_D_LBA | atadev->unit;
4213     }
4214     else {
4215 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
4216 	bytep[i++] = request->u.ata.feature;
4217 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
4218 	bytep[i++] = request->u.ata.count;
4219 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
4220 	bytep[i++] = request->u.ata.lba;
4221 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
4222 	bytep[i++] = request->u.ata.lba >> 8;
4223 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
4224 	bytep[i++] = request->u.ata.lba >> 16;
4225 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
4226 	bytep[i++] = (atadev->flags & ATA_D_USE_CHS ? 0 : ATA_D_LBA) |
4227 		   ATA_D_IBM | atadev->unit | ((request->u.ata.lba >> 24)&0xf);
4228     }
4229     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
4230     bytep[i++] = request->u.ata.command;
4231     return i;
4232 }
4233 
4234 static void
4235 ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
4236 {
4237     struct ata_promise_sx4 *hpktp = device_get_ivars(ctlr->dev);
4238 
4239     spin_lock_wr(&hpktp->mtx);
4240     if (hpktp->busy) {
4241 	struct host_packet *hp =
4242 	    kmalloc(sizeof(struct host_packet), M_TEMP, M_INTWAIT | M_ZERO);
4243 	hp->addr = hpkt;
4244 	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
4245     }
4246     else {
4247 	hpktp->busy = 1;
4248 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
4249     }
4250     spin_unlock_wr(&hpktp->mtx);
4251 }
4252 
4253 static void
4254 ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
4255 {
4256     struct ata_promise_sx4 *hpktp = device_get_ivars(ctlr->dev);
4257     struct host_packet *hp;
4258 
4259     spin_lock_wr(&hpktp->mtx);
4260     if ((hp = TAILQ_FIRST(&hpktp->queue))) {
4261 	TAILQ_REMOVE(&hpktp->queue, hp, chain);
4262 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
4263 	kfree(hp, M_TEMP);
4264     }
4265     else
4266 	hpktp->busy = 0;
4267     spin_unlock_wr(&hpktp->mtx);
4268 }
4269 
4270 
4271 /*
4272  * ServerWorks chipset support functions
4273  */
4274 int
4275 ata_serverworks_ident(device_t dev)
4276 {
4277     struct ata_pci_controller *ctlr = device_get_softc(dev);
4278     struct ata_chip_id *idx;
4279     static struct ata_chip_id ids[] =
4280     {{ ATA_ROSB4,     0x00, SWKS33,  0, ATA_UDMA2, "ROSB4" },
4281      { ATA_CSB5,      0x92, SWKS100, 0, ATA_UDMA5, "CSB5" },
4282      { ATA_CSB5,      0x00, SWKS66,  0, ATA_UDMA4, "CSB5" },
4283      { ATA_CSB6,      0x00, SWKS100, 0, ATA_UDMA5, "CSB6" },
4284      { ATA_CSB6_1,    0x00, SWKS66,  0, ATA_UDMA4, "CSB6" },
4285      { ATA_HT1000,    0x00, SWKS100, 0, ATA_UDMA5, "HT1000" },
4286      { ATA_HT1000_S1, 0x00, SWKS100, 4, ATA_SA150, "HT1000" },
4287      { ATA_HT1000_S2, 0x00, SWKSMIO, 4, ATA_SA150, "HT1000" },
4288      { ATA_K2,        0x00, SWKSMIO, 4, ATA_SA150, "K2" },
4289      { ATA_FRODO4,    0x00, SWKSMIO, 4, ATA_SA150, "Frodo4" },
4290      { ATA_FRODO8,    0x00, SWKSMIO, 8, ATA_SA150, "Frodo8" },
4291      { 0, 0, 0, 0, 0, 0}};
4292     char buffer[64];
4293 
4294     if (!(idx = ata_match_chip(dev, ids)))
4295 	return ENXIO;
4296 
4297     ksprintf(buffer, "ServerWorks %s %s controller",
4298 	    idx->text, ata_mode2str(idx->max_dma));
4299     device_set_desc_copy(dev, buffer);
4300     ctlr->chip = idx;
4301     ctlr->chipinit = ata_serverworks_chipinit;
4302     return 0;
4303 }
4304 
4305 static int
4306 ata_serverworks_chipinit(device_t dev)
4307 {
4308     struct ata_pci_controller *ctlr = device_get_softc(dev);
4309 
4310     if (ata_setup_interrupt(dev))
4311 	return ENXIO;
4312 
4313     if (ctlr->chip->cfg1 == SWKSMIO) {
4314 	ctlr->r_type2 = SYS_RES_MEMORY;
4315 	ctlr->r_rid2 = PCIR_BAR(5);
4316 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
4317 						    &ctlr->r_rid2, RF_ACTIVE)))
4318 	    return ENXIO;
4319 
4320 	ctlr->channels = ctlr->chip->cfg2;
4321 	ctlr->allocate = ata_serverworks_allocate;
4322 	ctlr->setmode = ata_sata_setmode;
4323 	return 0;
4324     }
4325     else if (ctlr->chip->cfg1 == SWKS33) {
4326 	device_t *children;
4327 	int nchildren, i;
4328 
4329 	/* locate the ISA part in the southbridge and enable UDMA33 */
4330 	if (!device_get_children(device_get_parent(dev), &children,&nchildren)){
4331 	    for (i = 0; i < nchildren; i++) {
4332 		if (pci_get_devid(children[i]) == ATA_ROSB4_ISA) {
4333 		    pci_write_config(children[i], 0x64,
4334 				     (pci_read_config(children[i], 0x64, 4) &
4335 				      ~0x00002000) | 0x00004000, 4);
4336 		    break;
4337 		}
4338 	    }
4339 	    kfree(children, M_TEMP);
4340 	}
4341     }
4342     else {
4343 	pci_write_config(dev, 0x5a,
4344 			 (pci_read_config(dev, 0x5a, 1) & ~0x40) |
4345 			 (ctlr->chip->cfg1 == SWKS100) ? 0x03 : 0x02, 1);
4346     }
4347     ctlr->setmode = ata_serverworks_setmode;
4348     return 0;
4349 }
4350 
4351 static int
4352 ata_serverworks_allocate(device_t dev)
4353 {
4354     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4355     struct ata_channel *ch = device_get_softc(dev);
4356     int ch_offset;
4357     int i;
4358 
4359     ch_offset = ch->unit * 0x100;
4360 
4361     for (i = ATA_DATA; i < ATA_MAX_RES; i++)
4362 	ch->r_io[i].res = ctlr->r_res2;
4363 
4364     /* setup ATA registers */
4365     ch->r_io[ATA_DATA].offset = ch_offset + 0x00;
4366     ch->r_io[ATA_FEATURE].offset = ch_offset + 0x04;
4367     ch->r_io[ATA_COUNT].offset = ch_offset + 0x08;
4368     ch->r_io[ATA_SECTOR].offset = ch_offset + 0x0c;
4369     ch->r_io[ATA_CYL_LSB].offset = ch_offset + 0x10;
4370     ch->r_io[ATA_CYL_MSB].offset = ch_offset + 0x14;
4371     ch->r_io[ATA_DRIVE].offset = ch_offset + 0x18;
4372     ch->r_io[ATA_COMMAND].offset = ch_offset + 0x1c;
4373     ch->r_io[ATA_CONTROL].offset = ch_offset + 0x20;
4374     ata_default_registers(dev);
4375 
4376     /* setup DMA registers */
4377     ch->r_io[ATA_BMCMD_PORT].offset = ch_offset + 0x30;
4378     ch->r_io[ATA_BMSTAT_PORT].offset = ch_offset + 0x32;
4379     ch->r_io[ATA_BMDTP_PORT].offset = ch_offset + 0x34;
4380 
4381     /* setup SATA registers */
4382     ch->r_io[ATA_SSTATUS].offset = ch_offset + 0x40;
4383     ch->r_io[ATA_SERROR].offset = ch_offset + 0x44;
4384     ch->r_io[ATA_SCONTROL].offset = ch_offset + 0x48;
4385 
4386     ch->flags |= ATA_NO_SLAVE;
4387     ata_pci_hw(dev);
4388     return 0;
4389 }
4390 
4391 static void
4392 ata_serverworks_setmode(device_t dev, int mode)
4393 {
4394     device_t gparent = GRANDPARENT(dev);
4395     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4396     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
4397     struct ata_device *atadev = device_get_softc(dev);
4398     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
4399     int offset = (devno ^ 0x01) << 3;
4400     int error;
4401     u_int8_t piotimings[] = { 0x5d, 0x47, 0x34, 0x22, 0x20, 0x34, 0x22, 0x20,
4402 			      0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
4403     u_int8_t dmatimings[] = { 0x77, 0x21, 0x20 };
4404 
4405     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
4406 
4407     mode = ata_check_80pin(dev, mode);
4408 
4409     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
4410 
4411     if (bootverbose)
4412 	device_printf(dev, "%ssetting %s on %s chip\n",
4413 		      (error) ? "FAILURE " : "",
4414 		      ata_mode2str(mode), ctlr->chip->text);
4415     if (!error) {
4416 	if (mode >= ATA_UDMA0) {
4417 	    pci_write_config(gparent, 0x56,
4418 			     (pci_read_config(gparent, 0x56, 2) &
4419 			      ~(0xf << (devno << 2))) |
4420 			     ((mode & ATA_MODE_MASK) << (devno << 2)), 2);
4421 	    pci_write_config(gparent, 0x54,
4422 			     pci_read_config(gparent, 0x54, 1) |
4423 			     (0x01 << devno), 1);
4424 	    pci_write_config(gparent, 0x44,
4425 			     (pci_read_config(gparent, 0x44, 4) &
4426 			      ~(0xff << offset)) |
4427 			     (dmatimings[2] << offset), 4);
4428 	}
4429 	else if (mode >= ATA_WDMA0) {
4430 	    pci_write_config(gparent, 0x54,
4431 			     pci_read_config(gparent, 0x54, 1) &
4432 			      ~(0x01 << devno), 1);
4433 	    pci_write_config(gparent, 0x44,
4434 			     (pci_read_config(gparent, 0x44, 4) &
4435 			      ~(0xff << offset)) |
4436 			     (dmatimings[mode & ATA_MODE_MASK] << offset), 4);
4437 	}
4438 	else
4439 	    pci_write_config(gparent, 0x54,
4440 			     pci_read_config(gparent, 0x54, 1) &
4441 			     ~(0x01 << devno), 1);
4442 
4443 	pci_write_config(gparent, 0x40,
4444 			 (pci_read_config(gparent, 0x40, 4) &
4445 			  ~(0xff << offset)) |
4446 			 (piotimings[ata_mode2idx(mode)] << offset), 4);
4447 	atadev->mode = mode;
4448     }
4449 }
4450 
4451 
4452 /*
4453  * Silicon Image Inc. (SiI) (former CMD) chipset support functions
4454  */
4455 int
4456 ata_sii_ident(device_t dev)
4457 {
4458     struct ata_pci_controller *ctlr = device_get_softc(dev);
4459     struct ata_chip_id *idx;
4460     static struct ata_chip_id ids[] =
4461     {{ ATA_SII3114,   0x00, SIIMEMIO, SII4CH,    ATA_SA150, "SiI 3114" },
4462      { ATA_SII3512,   0x02, SIIMEMIO, 0,         ATA_SA150, "SiI 3512" },
4463      { ATA_SII3112,   0x02, SIIMEMIO, 0,         ATA_SA150, "SiI 3112" },
4464      { ATA_SII3112_1, 0x02, SIIMEMIO, 0,         ATA_SA150, "SiI 3112" },
4465      { ATA_SII3512,   0x00, SIIMEMIO, SIIBUG,    ATA_SA150, "SiI 3512" },
4466      { ATA_SII3112,   0x00, SIIMEMIO, SIIBUG,    ATA_SA150, "SiI 3112" },
4467      { ATA_SII3112_1, 0x00, SIIMEMIO, SIIBUG,    ATA_SA150, "SiI 3112" },
4468      { ATA_SII3124,   0x00, SIIPRBIO, SII4CH,    ATA_SA300, "SiI 3124" },
4469      { ATA_SII3132,   0x00, SIIPRBIO, 0,         ATA_SA300, "SiI 3132" },
4470      { ATA_SII0680,   0x00, SIIMEMIO, SIISETCLK, ATA_UDMA6, "SiI 0680" },
4471      { ATA_CMD649,    0x00, 0,        SIIINTR,   ATA_UDMA5, "CMD 649" },
4472      { ATA_CMD648,    0x00, 0,        SIIINTR,   ATA_UDMA4, "CMD 648" },
4473      { ATA_CMD646,    0x07, 0,        0,         ATA_UDMA2, "CMD 646U2" },
4474      { ATA_CMD646,    0x00, 0,        0,         ATA_WDMA2, "CMD 646" },
4475      { 0, 0, 0, 0, 0, 0}};
4476     char buffer[64];
4477 
4478     if (!(idx = ata_match_chip(dev, ids)))
4479 	return ENXIO;
4480 
4481     ksprintf(buffer, "%s %s controller", idx->text, ata_mode2str(idx->max_dma));
4482     device_set_desc_copy(dev, buffer);
4483     ctlr->chip = idx;
4484     ctlr->chipinit = ata_sii_chipinit;
4485     return 0;
4486 }
4487 
4488 static int
4489 ata_sii_chipinit(device_t dev)
4490 {
4491     struct ata_pci_controller *ctlr = device_get_softc(dev);
4492 
4493     if (ata_setup_interrupt(dev))
4494 	return ENXIO;
4495 
4496     switch (ctlr->chip->cfg1) {
4497     case SIIPRBIO:
4498 	ctlr->r_type1 = SYS_RES_MEMORY;
4499 	ctlr->r_rid1 = PCIR_BAR(0);
4500 	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
4501 						    &ctlr->r_rid1, RF_ACTIVE)))
4502 	    return ENXIO;
4503 
4504 	ctlr->r_rid2 = PCIR_BAR(2);
4505 	ctlr->r_type2 = SYS_RES_MEMORY;
4506 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
4507 						    &ctlr->r_rid2, RF_ACTIVE))){
4508 	    bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1,ctlr->r_res1);
4509 	    return ENXIO;
4510 	}
4511 	ctlr->allocate = ata_siiprb_allocate;
4512 	ctlr->reset = ata_siiprb_reset;
4513 	ctlr->dmainit = ata_siiprb_dmainit;
4514 	ctlr->setmode = ata_sata_setmode;
4515 	ctlr->channels = (ctlr->chip->cfg2 == SII4CH) ? 4 : 2;
4516 
4517 	/* reset controller */
4518 	ATA_OUTL(ctlr->r_res1, 0x0040, 0x80000000);
4519 	DELAY(10000);
4520 	ATA_OUTL(ctlr->r_res1, 0x0040, 0x0000000f);
4521 
4522 	/* enable PCI interrupt */
4523 	pci_write_config(dev, PCIR_COMMAND,
4524 	pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
4525 	break;
4526 
4527     case SIIMEMIO:
4528 	ctlr->r_type2 = SYS_RES_MEMORY;
4529 	ctlr->r_rid2 = PCIR_BAR(5);
4530 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
4531 						    &ctlr->r_rid2, RF_ACTIVE)))
4532 	    return ENXIO;
4533 
4534 	if (ctlr->chip->cfg2 & SIISETCLK) {
4535 	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
4536 		pci_write_config(dev, 0x8a,
4537 				 (pci_read_config(dev, 0x8a, 1) & 0xcf)|0x10,1);
4538 	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
4539 		device_printf(dev, "%s could not set ATA133 clock\n",
4540 			      ctlr->chip->text);
4541 	}
4542 
4543 	/* if we have 4 channels enable the second set */
4544 	if (ctlr->chip->cfg2 & SII4CH) {
4545 	    ATA_OUTL(ctlr->r_res2, 0x0200, 0x00000002);
4546 	    ctlr->channels = 4;
4547 	}
4548 
4549 	/* dont block interrupts from any channel */
4550 	pci_write_config(dev, 0x48,
4551 			 (pci_read_config(dev, 0x48, 4) & ~0x03c00000), 4);
4552 
4553 	/* enable PCI interrupt as BIOS might not */
4554 	pci_write_config(dev, 0x8a, (pci_read_config(dev, 0x8a, 1) & 0x3f), 1);
4555 
4556 	ctlr->allocate = ata_sii_allocate;
4557 	if (ctlr->chip->max_dma >= ATA_SA150) {
4558 	    ctlr->reset = ata_sii_reset;
4559 	    ctlr->setmode = ata_sata_setmode;
4560 	}
4561 	else
4562 	    ctlr->setmode = ata_sii_setmode;
4563 	break;
4564 
4565     default:
4566 	if ((pci_read_config(dev, 0x51, 1) & 0x08) != 0x08) {
4567 	    device_printf(dev, "HW has secondary channel disabled\n");
4568 	    ctlr->channels = 1;
4569 	}
4570 
4571 	/* enable interrupt as BIOS might not */
4572 	pci_write_config(dev, 0x71, 0x01, 1);
4573 
4574 	ctlr->allocate = ata_cmd_allocate;
4575 	ctlr->setmode = ata_cmd_setmode;
4576 	break;
4577     }
4578     return 0;
4579 }
4580 
4581 static int
4582 ata_cmd_allocate(device_t dev)
4583 {
4584     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4585     struct ata_channel *ch = device_get_softc(dev);
4586 
4587     /* setup the usual register normal pci style */
4588     if (ata_pci_allocate(dev))
4589 	return ENXIO;
4590 
4591     if (ctlr->chip->cfg2 & SIIINTR)
4592 	ch->hw.status = ata_cmd_status;
4593 
4594     return 0;
4595 }
4596 
4597 static int
4598 ata_cmd_status(device_t dev)
4599 {
4600     struct ata_channel *ch = device_get_softc(dev);
4601     u_int8_t reg71;
4602 
4603     if (((reg71 = pci_read_config(device_get_parent(ch->dev), 0x71, 1)) &
4604 	 (ch->unit ? 0x08 : 0x04))) {
4605 	pci_write_config(device_get_parent(ch->dev), 0x71,
4606 			 reg71 & ~(ch->unit ? 0x04 : 0x08), 1);
4607 	return ata_pci_status(dev);
4608     }
4609     return 0;
4610 }
4611 
4612 static void
4613 ata_cmd_setmode(device_t dev, int mode)
4614 {
4615     device_t gparent = GRANDPARENT(dev);
4616     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4617     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
4618     struct ata_device *atadev = device_get_softc(dev);
4619     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
4620     int error;
4621 
4622     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
4623 
4624     mode = ata_check_80pin(dev, mode);
4625 
4626     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
4627 
4628     if (bootverbose)
4629 	device_printf(dev, "%ssetting %s on %s chip\n",
4630 		      (error) ? "FAILURE " : "",
4631 		      ata_mode2str(mode), ctlr->chip->text);
4632     if (!error) {
4633 	int treg = 0x54 + ((devno < 3) ? (devno << 1) : 7);
4634 	int ureg = ch->unit ? 0x7b : 0x73;
4635 
4636 	if (mode >= ATA_UDMA0) {
4637 	    int udmatimings[][2] = { { 0x31,  0xc2 }, { 0x21,  0x82 },
4638 				     { 0x11,  0x42 }, { 0x25,  0x8a },
4639 				     { 0x15,  0x4a }, { 0x05,  0x0a } };
4640 
4641 	    u_int8_t umode = pci_read_config(gparent, ureg, 1);
4642 
4643 	    umode &= ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca);
4644 	    umode |= udmatimings[mode & ATA_MODE_MASK][ATA_DEV(atadev->unit)];
4645 	    pci_write_config(gparent, ureg, umode, 1);
4646 	}
4647 	else if (mode >= ATA_WDMA0) {
4648 	    int dmatimings[] = { 0x87, 0x32, 0x3f };
4649 
4650 	    pci_write_config(gparent, treg, dmatimings[mode & ATA_MODE_MASK],1);
4651 	    pci_write_config(gparent, ureg,
4652 			     pci_read_config(gparent, ureg, 1) &
4653 			     ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca), 1);
4654 	}
4655 	else {
4656 	   int piotimings[] = { 0xa9, 0x57, 0x44, 0x32, 0x3f };
4657 	    pci_write_config(gparent, treg,
4658 			     piotimings[(mode & ATA_MODE_MASK) - ATA_PIO0], 1);
4659 	    pci_write_config(gparent, ureg,
4660 			     pci_read_config(gparent, ureg, 1) &
4661 			     ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca), 1);
4662 	}
4663 	atadev->mode = mode;
4664     }
4665 }
4666 
4667 static int
4668 ata_sii_allocate(device_t dev)
4669 {
4670     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4671     struct ata_channel *ch = device_get_softc(dev);
4672     int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2);
4673     int i;
4674 
4675     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
4676 	ch->r_io[i].res = ctlr->r_res2;
4677 	ch->r_io[i].offset = 0x80 + i + (unit01 << 6) + (unit10 << 8);
4678     }
4679     ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
4680     ch->r_io[ATA_CONTROL].offset = 0x8a + (unit01 << 6) + (unit10 << 8);
4681     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
4682     ata_default_registers(dev);
4683 
4684     ch->r_io[ATA_BMCMD_PORT].res = ctlr->r_res2;
4685     ch->r_io[ATA_BMCMD_PORT].offset = 0x00 + (unit01 << 3) + (unit10 << 8);
4686     ch->r_io[ATA_BMSTAT_PORT].res = ctlr->r_res2;
4687     ch->r_io[ATA_BMSTAT_PORT].offset = 0x02 + (unit01 << 3) + (unit10 << 8);
4688     ch->r_io[ATA_BMDTP_PORT].res = ctlr->r_res2;
4689     ch->r_io[ATA_BMDTP_PORT].offset = 0x04 + (unit01 << 3) + (unit10 << 8);
4690 
4691     if (ctlr->chip->max_dma >= ATA_SA150) {
4692 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
4693 	ch->r_io[ATA_SSTATUS].offset = 0x104 + (unit01 << 7) + (unit10 << 8);
4694 	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
4695 	ch->r_io[ATA_SERROR].offset = 0x108 + (unit01 << 7) + (unit10 << 8);
4696 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
4697 	ch->r_io[ATA_SCONTROL].offset = 0x100 + (unit01 << 7) + (unit10 << 8);
4698 	ch->flags |= ATA_NO_SLAVE;
4699 
4700 	/* enable PHY state change interrupt */
4701 	ATA_OUTL(ctlr->r_res2, 0x148 + (unit01 << 7) + (unit10 << 8),(1 << 16));
4702     }
4703 
4704     if ((ctlr->chip->cfg2 & SIIBUG) && ch->dma) {
4705 	/* work around errata in early chips */
4706 	ch->dma->boundary = 16 * DEV_BSIZE;
4707 	ch->dma->segsize = 15 * DEV_BSIZE;
4708     }
4709 
4710     ata_pci_hw(dev);
4711     ch->hw.status = ata_sii_status;
4712     return 0;
4713 }
4714 
4715 static int
4716 ata_sii_status(device_t dev)
4717 {
4718     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4719     struct ata_channel *ch = device_get_softc(dev);
4720     int offset0 = ((ch->unit & 1) << 3) + ((ch->unit & 2) << 8);
4721     int offset1 = ((ch->unit & 1) << 6) + ((ch->unit & 2) << 8);
4722 
4723     /* do we have any PHY events ? */
4724     if (ctlr->chip->max_dma >= ATA_SA150 &&
4725 	(ATA_INL(ctlr->r_res2, 0x10 + offset0) & 0x00000010))
4726 	ata_sata_phy_check_events(dev);
4727 
4728     if (ATA_INL(ctlr->r_res2, 0xa0 + offset1) & 0x00000800)
4729 	return ata_pci_status(dev);
4730     else
4731 	return 0;
4732 }
4733 
4734 static void
4735 ata_sii_reset(device_t dev)
4736 {
4737     if (ata_sata_phy_reset(dev))
4738 	ata_generic_reset(dev);
4739 }
4740 
4741 static void
4742 ata_sii_setmode(device_t dev, int mode)
4743 {
4744     device_t gparent = GRANDPARENT(dev);
4745     struct ata_pci_controller *ctlr = device_get_softc(gparent);
4746     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
4747     struct ata_device *atadev = device_get_softc(dev);
4748     int rego = (ch->unit << 4) + (ATA_DEV(atadev->unit) << 1);
4749     int mreg = ch->unit ? 0x84 : 0x80;
4750     int mask = 0x03 << (ATA_DEV(atadev->unit) << 2);
4751     int mval = pci_read_config(gparent, mreg, 1) & ~mask;
4752     int error;
4753 
4754     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
4755 
4756     if (ctlr->chip->cfg2 & SIISETCLK) {
4757 	if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x79, 1) &
4758 				 (ch->unit ? 0x02 : 0x01))) {
4759 	    ata_print_cable(dev, "controller");
4760 	    mode = ATA_UDMA2;
4761 	}
4762     }
4763     else
4764 	mode = ata_check_80pin(dev, mode);
4765 
4766     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
4767 
4768     if (bootverbose)
4769 	device_printf(dev, "%ssetting %s on %s chip\n",
4770 		      (error) ? "FAILURE " : "",
4771 		      ata_mode2str(mode), ctlr->chip->text);
4772     if (error)
4773 	return;
4774 
4775     if (mode >= ATA_UDMA0) {
4776 	u_int8_t udmatimings[] = { 0xf, 0xb, 0x7, 0x5, 0x3, 0x2, 0x1 };
4777 	u_int8_t ureg = 0xac + rego;
4778 
4779 	pci_write_config(gparent, mreg,
4780 			 mval | (0x03 << (ATA_DEV(atadev->unit) << 2)), 1);
4781 	pci_write_config(gparent, ureg,
4782 			 (pci_read_config(gparent, ureg, 1) & ~0x3f) |
4783 			 udmatimings[mode & ATA_MODE_MASK], 1);
4784 
4785     }
4786     else if (mode >= ATA_WDMA0) {
4787 	u_int8_t dreg = 0xa8 + rego;
4788 	u_int16_t dmatimings[] = { 0x2208, 0x10c2, 0x10c1 };
4789 
4790 	pci_write_config(gparent, mreg,
4791 			 mval | (0x02 << (ATA_DEV(atadev->unit) << 2)), 1);
4792 	pci_write_config(gparent, dreg, dmatimings[mode & ATA_MODE_MASK], 2);
4793 
4794     }
4795     else {
4796 	u_int8_t preg = 0xa4 + rego;
4797 	u_int16_t piotimings[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
4798 
4799 	pci_write_config(gparent, mreg,
4800 			 mval | (0x01 << (ATA_DEV(atadev->unit) << 2)), 1);
4801 	pci_write_config(gparent, preg, piotimings[mode & ATA_MODE_MASK], 2);
4802     }
4803     atadev->mode = mode;
4804 }
4805 
4806 struct ata_siiprb_dma_prdentry {
4807     u_int64_t addr;
4808     u_int32_t count;
4809     u_int32_t control;
4810 } __packed;
4811 
4812 struct ata_siiprb_ata_command {
4813     u_int32_t reserved0;
4814     struct ata_siiprb_dma_prdentry prd[126];
4815 } __packed;
4816 
4817 struct ata_siiprb_atapi_command {
4818     u_int8_t cdb[16];
4819     struct ata_siiprb_dma_prdentry prd[125];
4820 } __packed;
4821 
4822 struct ata_siiprb_command {
4823     u_int16_t control;
4824     u_int16_t protocol_override;
4825     u_int32_t transfer_count;
4826     u_int8_t fis[20];
4827     union {
4828 	struct ata_siiprb_ata_command ata;
4829 	struct ata_siiprb_atapi_command atapi;
4830     } u;
4831 } __packed;
4832 
4833 static int
4834 ata_siiprb_allocate(device_t dev)
4835 {
4836     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4837     struct ata_channel *ch = device_get_softc(dev);
4838     int offset = ch->unit * 0x2000;
4839 
4840     /* set the SATA resources */
4841     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
4842     ch->r_io[ATA_SSTATUS].offset = 0x1f04 + offset;
4843     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
4844     ch->r_io[ATA_SERROR].offset = 0x1f08 + offset;
4845     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
4846     ch->r_io[ATA_SCONTROL].offset = 0x1f00 + offset;
4847     ch->r_io[ATA_SACTIVE].res = ctlr->r_res2;
4848     ch->r_io[ATA_SACTIVE].offset = 0x1f0c + offset;
4849 
4850     ch->hw.begin_transaction = ata_siiprb_begin_transaction;
4851     ch->hw.end_transaction = ata_siiprb_end_transaction;
4852     ch->hw.status = ata_siiprb_status;
4853     ch->hw.command = NULL;	/* not used here */
4854     return 0;
4855 }
4856 
4857 static int
4858 ata_siiprb_status(device_t dev)
4859 {
4860     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4861     struct ata_channel *ch = device_get_softc(dev);
4862     int offset = ch->unit * 0x2000;
4863 
4864     if ((ATA_INL(ctlr->r_res1, 0x0044) & (1 << ch->unit))) {
4865 	u_int32_t istatus = ATA_INL(ctlr->r_res2, 0x1008 + offset);
4866 
4867 	/* do we have any PHY events ? */
4868 	ata_sata_phy_check_events(dev);
4869 
4870 	/* clear interrupt(s) */
4871 	ATA_OUTL(ctlr->r_res2, 0x1008 + offset, istatus);
4872 
4873 	/* do we have any device action ? */
4874 	return (istatus & 0x00000001);
4875     }
4876     return 0;
4877 }
4878 
4879 static int
4880 ata_siiprb_begin_transaction(struct ata_request *request)
4881 {
4882     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
4883     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
4884     struct ata_siiprb_command *prb;
4885     int offset = ch->unit * 0x2000;
4886     u_int64_t prb_bus;
4887     int tag = 0, dummy;
4888 
4889     /* check for 48 bit access and convert if needed */
4890     ata_modify_if_48bit(request);
4891 
4892     /* get a piece of the workspace for this request */
4893     prb = (struct ata_siiprb_command *)
4894 	(ch->dma->work + (sizeof(struct ata_siiprb_command) * tag));
4895 
4896     /* set basic prd options ata/atapi etc etc */
4897     bzero(prb, sizeof(struct ata_siiprb_command));
4898 
4899     /* setup the FIS for this request */
4900     if (!ata_request2fis_h2d(request, &prb->fis[0])) {
4901         device_printf(request->dev, "setting up SATA FIS failed\n");
4902         request->result = EIO;
4903         return ATA_OP_FINISHED;
4904     }
4905 
4906     /* if request moves data setup and load SG list */
4907     if (request->flags & (ATA_R_READ | ATA_R_WRITE)) {
4908 	struct ata_siiprb_dma_prdentry *prd;
4909 
4910 	if (request->flags & ATA_R_ATAPI)
4911 	    prd = &prb->u.atapi.prd[0];
4912 	else
4913 	    prd = &prb->u.ata.prd[0];
4914 	if (ch->dma->load(ch->dev, request->data, request->bytecount,
4915 			  request->flags & ATA_R_READ, prd, &dummy)) {
4916 	    device_printf(request->dev, "setting up DMA failed\n");
4917 	    request->result = EIO;
4918 	    return ATA_OP_FINISHED;
4919 	}
4920     }
4921 
4922     /* activate the prb */
4923     prb_bus = ch->dma->work_bus + (sizeof(struct ata_siiprb_command) * tag);
4924     ATA_OUTL(ctlr->r_res2,
4925 	     0x1c00 + offset + (tag * sizeof(u_int64_t)), prb_bus);
4926     ATA_OUTL(ctlr->r_res2,
4927 	     0x1c04 + offset + (tag * sizeof(u_int64_t)), prb_bus>>32);
4928 
4929     /* start the timeout */
4930     callout_reset(&request->callout, request->timeout * hz,
4931                   (timeout_t*)ata_timeout, request);
4932     return ATA_OP_CONTINUES;
4933 }
4934 
4935 static int
4936 ata_siiprb_end_transaction(struct ata_request *request)
4937 {
4938     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
4939     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
4940     struct ata_siiprb_command *prb;
4941     int offset = ch->unit * 0x2000;
4942     int error, tag = 0;
4943 
4944     /* kill the timeout */
4945     callout_stop(&request->callout);
4946 
4947     prb = (struct ata_siiprb_command *)
4948 	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + (tag << 7) + offset);
4949 
4950     /* if error status get details */
4951     request->status = prb->fis[2];
4952     if (request->status & ATA_S_ERROR)
4953 	request->error = prb->fis[3];
4954 
4955     /* update progress */
4956     if (!(request->status & ATA_S_ERROR) && !(request->flags & ATA_R_TIMEOUT)) {
4957 	if (request->flags & ATA_R_READ)
4958 	    request->donecount = prb->transfer_count;
4959 	else
4960 	    request->donecount = request->bytecount;
4961     }
4962 
4963     /* any controller errors flagged ? */
4964     if ((error = ATA_INL(ctlr->r_res2, 0x1024 + offset))) {
4965 	kprintf("ata_siiprb_end_transaction %s error=%08x\n",
4966 		ata_cmd2str(request), error);
4967     }
4968 
4969     /* release SG list etc */
4970     ch->dma->unload(ch->dev);
4971 
4972     return ATA_OP_FINISHED;
4973 }
4974 
4975 static void
4976 ata_siiprb_reset(device_t dev)
4977 {
4978     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
4979     struct ata_channel *ch = device_get_softc(dev);
4980     int offset = ch->unit * 0x2000;
4981     struct ata_siiprb_command *prb;
4982     u_int64_t prb_bus;
4983     u_int32_t status, signature;
4984     int timeout, tag = 0;
4985 
4986     /* reset channel HW */
4987     ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000001);
4988     DELAY(1000);
4989     ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000001);
4990     DELAY(10000);
4991 
4992     /* poll for channel ready */
4993     for (timeout = 0; timeout < 1000; timeout++) {
4994         if ((status = ATA_INL(ctlr->r_res2, 0x1000 + offset)) & 0x00040000)
4995             break;
4996         DELAY(1000);
4997     }
4998     if (timeout >= 1000) {
4999 	device_printf(ch->dev, "channel HW reset timeout reset failure\n");
5000 	ch->devices = 0;
5001 	goto finish;
5002     }
5003     if (bootverbose)
5004 	device_printf(ch->dev, "channel HW reset time=%dms\n", timeout * 1);
5005 
5006     /* reset phy */
5007     if (!ata_sata_phy_reset(dev)) {
5008 	if (bootverbose)
5009 	    device_printf(ch->dev, "phy reset found no device\n");
5010 	ch->devices = 0;
5011 	goto finish;
5012     }
5013 
5014     /* get a piece of the workspace for a soft reset request */
5015     prb = (struct ata_siiprb_command *)
5016 	(ch->dma->work + (sizeof(struct ata_siiprb_command) * tag));
5017     bzero(prb, sizeof(struct ata_siiprb_command));
5018     prb->control = htole16(0x0080);
5019 
5020     /* activate the soft reset prb */
5021     prb_bus = ch->dma->work_bus + (sizeof(struct ata_siiprb_command) * tag);
5022     ATA_OUTL(ctlr->r_res2,
5023 	     0x1c00 + offset + (tag * sizeof(u_int64_t)), prb_bus);
5024     ATA_OUTL(ctlr->r_res2,
5025 	     0x1c04 + offset + (tag * sizeof(u_int64_t)), prb_bus>>32);
5026 
5027     /* poll for channel ready */
5028     for (timeout = 0; timeout < 1000; timeout++) {
5029         DELAY(1000);
5030         if ((status = ATA_INL(ctlr->r_res2, 0x1008 + offset)) & 0x00010000)
5031             break;
5032     }
5033     if (timeout >= 1000) {
5034 	device_printf(ch->dev, "reset timeout - no device found\n");
5035 	ch->devices = 0;
5036 	goto finish;
5037     }
5038     if (bootverbose)
5039 	device_printf(ch->dev, "soft reset exec time=%dms status=%08x\n",
5040 			timeout, status);
5041 
5042     /* find out whats there */
5043     prb = (struct ata_siiprb_command *)
5044 	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + (tag << 7) + offset);
5045     signature =
5046 	prb->fis[12]|(prb->fis[4]<<8)|(prb->fis[5]<<16)|(prb->fis[6]<<24);
5047     if (bootverbose)
5048 	device_printf(ch->dev, "signature=%08x\n", signature);
5049     switch (signature) {
5050     case 0xeb140101:
5051 	ch->devices = ATA_ATAPI_MASTER;
5052 	device_printf(ch->dev, "SATA ATAPI devices not supported yet\n");
5053 	ch->devices = 0;
5054 	break;
5055     case 0x96690101:
5056 	ch->devices = ATA_PORTMULTIPLIER;
5057 	device_printf(ch->dev, "Portmultipliers not supported yet\n");
5058 	ch->devices = 0;
5059 	break;
5060     case 0x00000101:
5061 	ch->devices = ATA_ATA_MASTER;
5062 	break;
5063     default:
5064 	ch->devices = 0;
5065     }
5066 
5067 finish:
5068     /* clear interrupt(s) */
5069     ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x000008ff);
5070 
5071     /* require explicit interrupt ack */
5072     ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000008);
5073 
5074     /* 64bit mode */
5075     ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000400);
5076 
5077     /* enable interrupts wanted */
5078     ATA_OUTL(ctlr->r_res2, 0x1010 + offset, 0x000000ff);
5079 }
5080 
5081 static void
5082 ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
5083 {
5084     struct ata_dmasetprd_args *args = xsc;
5085     struct ata_siiprb_dma_prdentry *prd = args->dmatab;
5086     int i;
5087 
5088     if ((args->error = error))
5089 	return;
5090 
5091     for (i = 0; i < nsegs; i++) {
5092 	prd[i].addr = htole64(segs[i].ds_addr);
5093 	prd[i].count = htole32(segs[i].ds_len);
5094     }
5095     prd[i - 1].control = htole32(ATA_DMA_EOT);
5096 }
5097 
5098 static void
5099 ata_siiprb_dmainit(device_t dev)
5100 {
5101     struct ata_channel *ch = device_get_softc(dev);
5102 
5103     ata_dmainit(dev);
5104     if (ch->dma) {
5105 	/* note start and stop are not used here */
5106 	ch->dma->setprd = ata_siiprb_dmasetprd;
5107 	ch->dma->max_address = BUS_SPACE_MAXADDR;
5108     }
5109 }
5110 
5111 
5112 /*
5113  * Silicon Integrated Systems Corp. (SiS) chipset support functions
5114  */
5115 int
5116 ata_sis_ident(device_t dev)
5117 {
5118     struct ata_pci_controller *ctlr = device_get_softc(dev);
5119     struct ata_chip_id *idx;
5120     static struct ata_chip_id ids[] =
5121     {{ ATA_SIS182,  0x00, SISSATA,   0, ATA_SA150, "182" }, /* south */
5122      { ATA_SIS181,  0x00, SISSATA,   0, ATA_SA150, "181" }, /* south */
5123      { ATA_SIS180,  0x00, SISSATA,   0, ATA_SA150, "180" }, /* south */
5124      { ATA_SIS965,  0x00, SIS133NEW, 0, ATA_UDMA6, "965" }, /* south */
5125      { ATA_SIS964,  0x00, SIS133NEW, 0, ATA_UDMA6, "964" }, /* south */
5126      { ATA_SIS963,  0x00, SIS133NEW, 0, ATA_UDMA6, "963" }, /* south */
5127      { ATA_SIS962,  0x00, SIS133NEW, 0, ATA_UDMA6, "962" }, /* south */
5128 
5129      { ATA_SIS745,  0x00, SIS100NEW, 0, ATA_UDMA5, "745" }, /* 1chip */
5130      { ATA_SIS735,  0x00, SIS100NEW, 0, ATA_UDMA5, "735" }, /* 1chip */
5131      { ATA_SIS733,  0x00, SIS100NEW, 0, ATA_UDMA5, "733" }, /* 1chip */
5132      { ATA_SIS730,  0x00, SIS100OLD, 0, ATA_UDMA5, "730" }, /* 1chip */
5133 
5134      { ATA_SIS635,  0x00, SIS100NEW, 0, ATA_UDMA5, "635" }, /* 1chip */
5135      { ATA_SIS633,  0x00, SIS100NEW, 0, ATA_UDMA5, "633" }, /* unknown */
5136      { ATA_SIS630,  0x30, SIS100OLD, 0, ATA_UDMA5, "630S"}, /* 1chip */
5137      { ATA_SIS630,  0x00, SIS66,     0, ATA_UDMA4, "630" }, /* 1chip */
5138      { ATA_SIS620,  0x00, SIS66,     0, ATA_UDMA4, "620" }, /* 1chip */
5139 
5140      { ATA_SIS550,  0x00, SIS66,     0, ATA_UDMA5, "550" },
5141      { ATA_SIS540,  0x00, SIS66,     0, ATA_UDMA4, "540" },
5142      { ATA_SIS530,  0x00, SIS66,     0, ATA_UDMA4, "530" },
5143 
5144      { ATA_SIS5513, 0xc2, SIS33,     1, ATA_UDMA2, "5513" },
5145      { ATA_SIS5513, 0x00, SIS33,     1, ATA_WDMA2, "5513" },
5146      { 0, 0, 0, 0, 0, 0 }};
5147     char buffer[64];
5148     int found = 0;
5149 
5150     if (!(idx = ata_find_chip(dev, ids, -pci_get_slot(dev))))
5151 	return ENXIO;
5152 
5153     if (idx->cfg2 && !found) {
5154 	u_int8_t reg57 = pci_read_config(dev, 0x57, 1);
5155 
5156 	pci_write_config(dev, 0x57, (reg57 & 0x7f), 1);
5157 	if (pci_read_config(dev, PCIR_DEVVENDOR, 4) == ATA_SIS5518) {
5158 	    found = 1;
5159 	    idx->cfg1 = SIS133NEW;
5160 	    idx->max_dma = ATA_UDMA6;
5161 	    ksprintf(buffer, "SiS 962/963 %s controller",
5162 		    ata_mode2str(idx->max_dma));
5163 	}
5164 	pci_write_config(dev, 0x57, reg57, 1);
5165     }
5166     if (idx->cfg2 && !found) {
5167 	u_int8_t reg4a = pci_read_config(dev, 0x4a, 1);
5168 
5169 	pci_write_config(dev, 0x4a, (reg4a | 0x10), 1);
5170 	if (pci_read_config(dev, PCIR_DEVVENDOR, 4) == ATA_SIS5517) {
5171 	    struct ata_chip_id id[] =
5172 		{{ ATA_SISSOUTH, 0x10, 0, 0, 0, "" }, { 0, 0, 0, 0, 0, 0 }};
5173 
5174 	    found = 1;
5175 	    if (ata_find_chip(dev, id, pci_get_slot(dev))) {
5176 		idx->cfg1 = SIS133OLD;
5177 		idx->max_dma = ATA_UDMA6;
5178 	    }
5179 	    else {
5180 		idx->cfg1 = SIS100NEW;
5181 		idx->max_dma = ATA_UDMA5;
5182 	    }
5183 	    ksprintf(buffer, "SiS 961 %s controller",ata_mode2str(idx->max_dma));
5184 	}
5185 	pci_write_config(dev, 0x4a, reg4a, 1);
5186     }
5187     if (!found)
5188 	ksprintf(buffer,"SiS %s %s controller",
5189 		idx->text, ata_mode2str(idx->max_dma));
5190 
5191     device_set_desc_copy(dev, buffer);
5192     ctlr->chip = idx;
5193     ctlr->chipinit = ata_sis_chipinit;
5194     return 0;
5195 }
5196 
5197 static int
5198 ata_sis_chipinit(device_t dev)
5199 {
5200     struct ata_pci_controller *ctlr = device_get_softc(dev);
5201 
5202     if (ata_setup_interrupt(dev))
5203 	return ENXIO;
5204 
5205     switch (ctlr->chip->cfg1) {
5206     case SIS33:
5207 	break;
5208     case SIS66:
5209     case SIS100OLD:
5210 	pci_write_config(dev, 0x52, pci_read_config(dev, 0x52, 1) & ~0x04, 1);
5211 	break;
5212     case SIS100NEW:
5213     case SIS133OLD:
5214 	pci_write_config(dev, 0x49, pci_read_config(dev, 0x49, 1) & ~0x01, 1);
5215 	break;
5216     case SIS133NEW:
5217 	pci_write_config(dev, 0x50, pci_read_config(dev, 0x50, 2) | 0x0008, 2);
5218 	pci_write_config(dev, 0x52, pci_read_config(dev, 0x52, 2) | 0x0008, 2);
5219 	break;
5220     case SISSATA:
5221 	ctlr->r_type2 = SYS_RES_IOPORT;
5222 	ctlr->r_rid2 = PCIR_BAR(5);
5223 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
5224 						   &ctlr->r_rid2, RF_ACTIVE))) {
5225 	    ctlr->allocate = ata_sis_allocate;
5226 	    ctlr->reset = ata_sis_reset;
5227 
5228 	    /* enable PCI interrupt */
5229 	    pci_write_config(dev, PCIR_COMMAND,
5230 			     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400,2);
5231 	}
5232 	ctlr->setmode = ata_sata_setmode;
5233 	return 0;
5234     default:
5235 	return ENXIO;
5236     }
5237     ctlr->setmode = ata_sis_setmode;
5238     return 0;
5239 }
5240 
5241 static int
5242 ata_sis_allocate(device_t dev)
5243 {
5244     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
5245     struct ata_channel *ch = device_get_softc(dev);
5246     int offset = ch->unit << ((ctlr->chip->chipid == ATA_SIS182) ? 5 : 6);
5247 
5248     /* setup the usual register normal pci style */
5249     if (ata_pci_allocate(dev))
5250 	return ENXIO;
5251 
5252     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
5253     ch->r_io[ATA_SSTATUS].offset = 0x00 + offset;
5254     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
5255     ch->r_io[ATA_SERROR].offset = 0x04 + offset;
5256     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
5257     ch->r_io[ATA_SCONTROL].offset = 0x08 + offset;
5258     ch->flags |= ATA_NO_SLAVE;
5259 
5260     /* XXX SOS PHY hotplug handling missing in SiS chip ?? */
5261     /* XXX SOS unknown how to enable PHY state change interrupt */
5262     return 0;
5263 }
5264 
5265 static void
5266 ata_sis_reset(device_t dev)
5267 {
5268     if (ata_sata_phy_reset(dev))
5269 	ata_generic_reset(dev);
5270 }
5271 
5272 static void
5273 ata_sis_setmode(device_t dev, int mode)
5274 {
5275     device_t gparent = GRANDPARENT(dev);
5276     struct ata_pci_controller *ctlr = device_get_softc(gparent);
5277     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
5278     struct ata_device *atadev = device_get_softc(dev);
5279     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
5280     int error;
5281 
5282     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
5283 
5284     if (ctlr->chip->cfg1 == SIS133NEW) {
5285 	if (mode > ATA_UDMA2 &&
5286 	    pci_read_config(gparent, ch->unit ? 0x52 : 0x50,2) & 0x8000) {
5287 	    ata_print_cable(dev, "controller");
5288 	    mode = ATA_UDMA2;
5289 	}
5290     }
5291     else {
5292 	if (mode > ATA_UDMA2 &&
5293 	    pci_read_config(gparent, 0x48, 1)&(ch->unit ? 0x20 : 0x10)) {
5294 	    ata_print_cable(dev, "controller");
5295 	    mode = ATA_UDMA2;
5296 	}
5297     }
5298 
5299     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
5300 
5301     if (bootverbose)
5302 	device_printf(dev, "%ssetting %s on %s chip\n",
5303 		      (error) ? "FAILURE " : "",
5304 		      ata_mode2str(mode), ctlr->chip->text);
5305     if (!error) {
5306 	switch (ctlr->chip->cfg1) {
5307 	case SIS133NEW: {
5308 	    u_int32_t timings[] =
5309 		{ 0x28269008, 0x0c266008, 0x04263008, 0x0c0a3008, 0x05093008,
5310 		  0x22196008, 0x0c0a3008, 0x05093008, 0x050939fc, 0x050936ac,
5311 		  0x0509347c, 0x0509325c, 0x0509323c, 0x0509322c, 0x0509321c};
5312 	    u_int32_t reg;
5313 
5314 	    reg = (pci_read_config(gparent, 0x57, 1)&0x40?0x70:0x40)+(devno<<2);
5315 	    pci_write_config(gparent, reg, timings[ata_mode2idx(mode)], 4);
5316 	    break;
5317 	    }
5318 	case SIS133OLD: {
5319 	    u_int16_t timings[] =
5320 	     { 0x00cb, 0x0067, 0x0044, 0x0033, 0x0031, 0x0044, 0x0033, 0x0031,
5321 	       0x8f31, 0x8a31, 0x8731, 0x8531, 0x8331, 0x8231, 0x8131 };
5322 
5323 	    u_int16_t reg = 0x40 + (devno << 1);
5324 
5325 	    pci_write_config(gparent, reg, timings[ata_mode2idx(mode)], 2);
5326 	    break;
5327 	    }
5328 	case SIS100NEW: {
5329 	    u_int16_t timings[] =
5330 		{ 0x00cb, 0x0067, 0x0044, 0x0033, 0x0031, 0x0044, 0x0033,
5331 		  0x0031, 0x8b31, 0x8731, 0x8531, 0x8431, 0x8231, 0x8131 };
5332 	    u_int16_t reg = 0x40 + (devno << 1);
5333 
5334 	    pci_write_config(gparent, reg, timings[ata_mode2idx(mode)], 2);
5335 	    break;
5336 	    }
5337 	case SIS100OLD:
5338 	case SIS66:
5339 	case SIS33: {
5340 	    u_int16_t timings[] =
5341 		{ 0x0c0b, 0x0607, 0x0404, 0x0303, 0x0301, 0x0404, 0x0303,
5342 		  0x0301, 0xf301, 0xd301, 0xb301, 0xa301, 0x9301, 0x8301 };
5343 	    u_int16_t reg = 0x40 + (devno << 1);
5344 
5345 	    pci_write_config(gparent, reg, timings[ata_mode2idx(mode)], 2);
5346 	    break;
5347 	    }
5348 	}
5349 	atadev->mode = mode;
5350     }
5351 }
5352 
5353 
5354 /* VIA Technologies Inc. chipset support functions */
5355 int
5356 ata_via_ident(device_t dev)
5357 {
5358     struct ata_pci_controller *ctlr = device_get_softc(dev);
5359     struct ata_chip_id *idx;
5360     static struct ata_chip_id ids[] =
5361     {{ ATA_VIA82C586, 0x02, VIA33,  0x00,    ATA_UDMA2, "82C586B" },
5362      { ATA_VIA82C586, 0x00, VIA33,  0x00,    ATA_WDMA2, "82C586" },
5363      { ATA_VIA82C596, 0x12, VIA66,  VIACLK,  ATA_UDMA4, "82C596B" },
5364      { ATA_VIA82C596, 0x00, VIA33,  0x00,    ATA_UDMA2, "82C596" },
5365      { ATA_VIA82C686, 0x40, VIA100, VIABUG,  ATA_UDMA5, "82C686B"},
5366      { ATA_VIA82C686, 0x10, VIA66,  VIACLK,  ATA_UDMA4, "82C686A" },
5367      { ATA_VIA82C686, 0x00, VIA33,  0x00,    ATA_UDMA2, "82C686" },
5368      { ATA_VIA8231,   0x00, VIA100, VIABUG,  ATA_UDMA5, "8231" },
5369      { ATA_VIA8233,   0x00, VIA100, 0x00,    ATA_UDMA5, "8233" },
5370      { ATA_VIA8233C,  0x00, VIA100, 0x00,    ATA_UDMA5, "8233C" },
5371      { ATA_VIA8233A,  0x00, VIA133, 0x00,    ATA_UDMA6, "8233A" },
5372      { ATA_VIA8235,   0x00, VIA133, 0x00,    ATA_UDMA6, "8235" },
5373      { ATA_VIA8237,   0x00, VIA133, 0x00,    ATA_UDMA6, "8237" },
5374      { ATA_VIA8237A,  0x00, VIA133, 0x00,    ATA_UDMA6, "8237A" },
5375      { ATA_VIA8251,   0x00, VIA133, 0x00,    ATA_UDMA6, "8251" },
5376      { 0, 0, 0, 0, 0, 0 }};
5377     static struct ata_chip_id new_ids[] =
5378     {{ ATA_VIA6410,   0x00, 0,      0x00,    ATA_UDMA6, "6410" },
5379      { ATA_VIA6420,   0x00, 7,      0x00,    ATA_SA150, "6420" },
5380      { ATA_VIA6421,   0x00, 6,      VIABAR,  ATA_SA150, "6421" },
5381      { ATA_VIA8237A,  0x00, 7,      0x00,    ATA_SA150, "8237A" },
5382      { ATA_VIA8251,   0x00, 0,      VIAAHCI, ATA_SA300, "8251" },
5383      { 0, 0, 0, 0, 0, 0 }};
5384     char buffer[64];
5385 
5386     if (pci_get_devid(dev) == ATA_VIA82C571) {
5387 	if (!(idx = ata_find_chip(dev, ids, -99)))
5388 	    return ENXIO;
5389     }
5390     else {
5391 	if (!(idx = ata_match_chip(dev, new_ids)))
5392 	    return ENXIO;
5393     }
5394 
5395     ksprintf(buffer, "VIA %s %s controller",
5396 	    idx->text, ata_mode2str(idx->max_dma));
5397     device_set_desc_copy(dev, buffer);
5398     ctlr->chip = idx;
5399     ctlr->chipinit = ata_via_chipinit;
5400     return 0;
5401 }
5402 
5403 static int
5404 ata_via_chipinit(device_t dev)
5405 {
5406     struct ata_pci_controller *ctlr = device_get_softc(dev);
5407 
5408     if (ata_setup_interrupt(dev))
5409 	return ENXIO;
5410 
5411     if (ctlr->chip->max_dma >= ATA_SA150) {
5412 	if (ctlr->chip->cfg2 == VIAAHCI) {
5413 	    ctlr->r_type2 = SYS_RES_MEMORY;
5414 	    ctlr->r_rid2 = PCIR_BAR(5);
5415 	    if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
5416 						       &ctlr->r_rid2,
5417 						       RF_ACTIVE))) {
5418 		 return ata_ahci_chipinit(dev);
5419 	    }
5420 	}
5421 	ctlr->r_type2 = SYS_RES_IOPORT;
5422 	ctlr->r_rid2 = PCIR_BAR(5);
5423 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
5424 						   &ctlr->r_rid2, RF_ACTIVE))) {
5425 	    ctlr->allocate = ata_via_allocate;
5426 	    ctlr->reset = ata_via_reset;
5427 
5428 	    /* enable PCI interrupt */
5429 	    pci_write_config(dev, PCIR_COMMAND,
5430 			     pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400,2);
5431 	}
5432 
5433 	if (ctlr->chip->cfg2 & VIABAR) {
5434 	    ctlr->channels = 3;
5435 	    ctlr->setmode = ata_via_setmode;
5436 	}
5437 	else
5438 	    ctlr->setmode = ata_sata_setmode;
5439 	return 0;
5440     }
5441 
5442     /* prepare for ATA-66 on the 82C686a and 82C596b */
5443     if (ctlr->chip->cfg2 & VIACLK)
5444 	pci_write_config(dev, 0x50, 0x030b030b, 4);
5445 
5446     /* the southbridge might need the data corruption fix */
5447     if (ctlr->chip->cfg2 & VIABUG)
5448 	ata_via_southbridge_fixup(dev);
5449 
5450     /* set fifo configuration half'n'half */
5451     pci_write_config(dev, 0x43,
5452 		     (pci_read_config(dev, 0x43, 1) & 0x90) | 0x2a, 1);
5453 
5454     /* set status register read retry */
5455     pci_write_config(dev, 0x44, pci_read_config(dev, 0x44, 1) | 0x08, 1);
5456 
5457     /* set DMA read & end-of-sector fifo flush */
5458     pci_write_config(dev, 0x46,
5459 		     (pci_read_config(dev, 0x46, 1) & 0x0c) | 0xf0, 1);
5460 
5461     /* set sector size */
5462     pci_write_config(dev, 0x60, DEV_BSIZE, 2);
5463     pci_write_config(dev, 0x68, DEV_BSIZE, 2);
5464 
5465     ctlr->setmode = ata_via_family_setmode;
5466     return 0;
5467 }
5468 
5469 static int
5470 ata_via_allocate(device_t dev)
5471 {
5472     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
5473     struct ata_channel *ch = device_get_softc(dev);
5474 
5475     /* newer SATA chips has resources in one BAR for each channel */
5476     if (ctlr->chip->cfg2 & VIABAR) {
5477 	struct resource *r_io;
5478 	int i, rid;
5479 
5480 	rid = PCIR_BAR(ch->unit);
5481 	if (!(r_io = bus_alloc_resource_any(device_get_parent(dev),
5482 					    SYS_RES_IOPORT,
5483 					    &rid, RF_ACTIVE)))
5484 	    return ENXIO;
5485 
5486 	for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
5487 	    ch->r_io[i].res = r_io;
5488 	    ch->r_io[i].offset = i;
5489 	}
5490 	ch->r_io[ATA_CONTROL].res = r_io;
5491 	ch->r_io[ATA_CONTROL].offset = 2 + ATA_IOSIZE;
5492 	ch->r_io[ATA_IDX_ADDR].res = r_io;
5493 	ata_default_registers(dev);
5494 	for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
5495 	    ch->r_io[i].res = ctlr->r_res1;
5496 	    ch->r_io[i].offset = (i - ATA_BMCMD_PORT)+(ch->unit * ATA_BMIOSIZE);
5497 	}
5498 	ata_pci_hw(dev);
5499 	if (ch->unit > 1)
5500 	    return 0;
5501     }
5502     else {
5503 	/* setup the usual register normal pci style */
5504 	if (ata_pci_allocate(dev))
5505 	    return ENXIO;
5506     }
5507 
5508     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
5509     ch->r_io[ATA_SSTATUS].offset = (ch->unit << ctlr->chip->cfg1);
5510     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
5511     ch->r_io[ATA_SERROR].offset = 0x04 + (ch->unit << ctlr->chip->cfg1);
5512     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
5513     ch->r_io[ATA_SCONTROL].offset = 0x08 + (ch->unit << ctlr->chip->cfg1);
5514     ch->flags |= ATA_NO_SLAVE;
5515 
5516     /* XXX SOS PHY hotplug handling missing in VIA chip ?? */
5517     /* XXX SOS unknown how to enable PHY state change interrupt */
5518     return 0;
5519 }
5520 
5521 static void
5522 ata_via_reset(device_t dev)
5523 {
5524     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
5525     struct ata_channel *ch = device_get_softc(dev);
5526 
5527     if ((ctlr->chip->cfg2 & VIABAR) && (ch->unit > 1))
5528 	ata_generic_reset(dev);
5529     else
5530 	if (ata_sata_phy_reset(dev))
5531 	    ata_generic_reset(dev);
5532 }
5533 
5534 static void
5535 ata_via_setmode(device_t dev, int mode)
5536 {
5537     device_t gparent = GRANDPARENT(dev);
5538     struct ata_pci_controller *ctlr = device_get_softc(gparent);
5539     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
5540     struct ata_device *atadev = device_get_softc(dev);
5541     int error;
5542 
5543     if ((ctlr->chip->cfg2 & VIABAR) && (ch->unit > 1)) {
5544 	u_int8_t pio_timings[] = { 0xa8, 0x65, 0x65, 0x32, 0x20,
5545 				   0x65, 0x32, 0x20,
5546 				   0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
5547 	u_int8_t dma_timings[] = { 0xee, 0xe8, 0xe6, 0xe4, 0xe2, 0xe1, 0xe0 };
5548 
5549 	mode = ata_check_80pin(dev, ata_limit_mode(dev, mode, ATA_UDMA6));
5550 	error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
5551 	if (bootverbose)
5552 	    device_printf(dev, "%ssetting %s on %s chip\n",
5553 			  (error) ? "FAILURE " : "", ata_mode2str(mode),
5554 			  ctlr->chip->text);
5555 	if (!error) {
5556 	    pci_write_config(gparent, 0xab, pio_timings[ata_mode2idx(mode)], 1);
5557 	    if (mode >= ATA_UDMA0)
5558 		pci_write_config(gparent, 0xb3,
5559 	    dma_timings[mode & ATA_MODE_MASK], 1);
5560 	    atadev->mode = mode;
5561 	}
5562     }
5563     else
5564 	ata_sata_setmode(dev, mode);
5565 }
5566 
5567 static void
5568 ata_via_southbridge_fixup(device_t dev)
5569 {
5570     device_t *children;
5571     int nchildren, i;
5572 
5573     if (device_get_children(device_get_parent(dev), &children, &nchildren))
5574 	return;
5575 
5576     for (i = 0; i < nchildren; i++) {
5577 	if (pci_get_devid(children[i]) == ATA_VIA8363 ||
5578 	    pci_get_devid(children[i]) == ATA_VIA8371 ||
5579 	    pci_get_devid(children[i]) == ATA_VIA8662 ||
5580 	    pci_get_devid(children[i]) == ATA_VIA8361) {
5581 	    u_int8_t reg76 = pci_read_config(children[i], 0x76, 1);
5582 
5583 	    if ((reg76 & 0xf0) != 0xd0) {
5584 		device_printf(dev,
5585 		"Correcting VIA config for southbridge data corruption bug\n");
5586 		pci_write_config(children[i], 0x75, 0x80, 1);
5587 		pci_write_config(children[i], 0x76, (reg76 & 0x0f) | 0xd0, 1);
5588 	    }
5589 	    break;
5590 	}
5591     }
5592     kfree(children, M_TEMP);
5593 }
5594 
5595 
5596 /* common code for VIA, AMD & nVidia */
5597 static void
5598 ata_via_family_setmode(device_t dev, int mode)
5599 {
5600     device_t gparent = GRANDPARENT(dev);
5601     struct ata_pci_controller *ctlr = device_get_softc(gparent);
5602     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
5603     struct ata_device *atadev = device_get_softc(dev);
5604     u_int8_t timings[] = { 0xa8, 0x65, 0x42, 0x22, 0x20, 0x42, 0x22, 0x20,
5605 			   0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
5606     int modes[][7] = {
5607 	{ 0xc2, 0xc1, 0xc0, 0x00, 0x00, 0x00, 0x00 },   /* VIA ATA33 */
5608 	{ 0xee, 0xec, 0xea, 0xe9, 0xe8, 0x00, 0x00 },   /* VIA ATA66 */
5609 	{ 0xf7, 0xf6, 0xf4, 0xf2, 0xf1, 0xf0, 0x00 },   /* VIA ATA100 */
5610 	{ 0xf7, 0xf7, 0xf6, 0xf4, 0xf2, 0xf1, 0xf0 },   /* VIA ATA133 */
5611 	{ 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, 0xc7 }};  /* AMD/nVIDIA */
5612     int devno = (ch->unit << 1) + ATA_DEV(atadev->unit);
5613     int reg = 0x53 - devno;
5614     int error;
5615 
5616     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
5617 
5618     if (ctlr->chip->cfg2 & AMDCABLE) {
5619 	if (mode > ATA_UDMA2 &&
5620 	    !(pci_read_config(gparent, 0x42, 1) & (1 << devno))) {
5621 	    ata_print_cable(dev, "controller");
5622 	    mode = ATA_UDMA2;
5623 	}
5624     }
5625     else
5626 	mode = ata_check_80pin(dev, mode);
5627 
5628     if (ctlr->chip->cfg2 & NVIDIA)
5629 	reg += 0x10;
5630 
5631     if (ctlr->chip->cfg1 != VIA133)
5632 	pci_write_config(gparent, reg - 0x08, timings[ata_mode2idx(mode)], 1);
5633 
5634     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
5635 
5636     if (bootverbose)
5637 	device_printf(dev, "%ssetting %s on %s chip\n",
5638 		      (error) ? "FAILURE " : "", ata_mode2str(mode),
5639 		      ctlr->chip->text);
5640     if (!error) {
5641 	if (mode >= ATA_UDMA0)
5642 	    pci_write_config(gparent, reg,
5643 			     modes[ctlr->chip->cfg1][mode & ATA_MODE_MASK], 1);
5644 	else
5645 	    pci_write_config(gparent, reg, 0x8b, 1);
5646 	atadev->mode = mode;
5647     }
5648 }
5649 
5650 
5651 /* misc functions */
5652 static struct ata_chip_id *
5653 ata_match_chip(device_t dev, struct ata_chip_id *index)
5654 {
5655     while (index->chipid != 0) {
5656 	if (pci_get_devid(dev) == index->chipid &&
5657 	    pci_get_revid(dev) >= index->chiprev)
5658 	    return index;
5659 	index++;
5660     }
5661     return NULL;
5662 }
5663 
5664 static struct ata_chip_id *
5665 ata_find_chip(device_t dev, struct ata_chip_id *index, int slot)
5666 {
5667     device_t *children;
5668     int nchildren, i;
5669 
5670     if (device_get_children(device_get_parent(dev), &children, &nchildren))
5671 	return 0;
5672 
5673     while (index->chipid != 0) {
5674 	for (i = 0; i < nchildren; i++) {
5675 	    if (((slot >= 0 && pci_get_slot(children[i]) == slot) ||
5676 		 (slot < 0 && pci_get_slot(children[i]) <= -slot)) &&
5677 		pci_get_devid(children[i]) == index->chipid &&
5678 		pci_get_revid(children[i]) >= index->chiprev) {
5679 		kfree(children, M_TEMP);
5680 		return index;
5681 	    }
5682 	}
5683 	index++;
5684     }
5685     kfree(children, M_TEMP);
5686     return NULL;
5687 }
5688 
5689 static int
5690 ata_setup_interrupt(device_t dev)
5691 {
5692     struct ata_pci_controller *ctlr = device_get_softc(dev);
5693     int rid = ATA_IRQ_RID;
5694 
5695     if (!ata_legacy(dev)) {
5696 	if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
5697 						   RF_SHAREABLE | RF_ACTIVE))) {
5698 	    device_printf(dev, "unable to map interrupt\n");
5699 	    return ENXIO;
5700 	}
5701 	if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS,
5702 			    ata_generic_intr, ctlr, &ctlr->handle, NULL))) {
5703 	    device_printf(dev, "unable to setup interrupt\n");
5704 	    return ENXIO;
5705 	}
5706     }
5707     return 0;
5708 }
5709 
5710 struct ata_serialize {
5711     struct spinlock     locked_mtx;
5712     int                 locked_ch;
5713     int                 restart_ch;
5714 };
5715 
5716 static int
5717 ata_serialize(device_t dev, int flags)
5718 {
5719     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
5720     struct ata_channel *ch = device_get_softc(dev);
5721     struct ata_serialize *serial;
5722     static int inited = 0;
5723     int res;
5724 
5725     if (!inited) {
5726 	serial = kmalloc(sizeof(struct ata_serialize),
5727 			      M_TEMP, M_INTWAIT | M_ZERO);
5728 	spin_init(&serial->locked_mtx);
5729 	serial->locked_ch = -1;
5730 	serial->restart_ch = -1;
5731 	device_set_ivars(ctlr->dev, serial);
5732 	inited = 1;
5733     }
5734     else
5735 	serial = device_get_ivars(ctlr->dev);
5736 
5737     spin_lock_wr(&serial->locked_mtx);
5738     switch (flags) {
5739     case ATA_LF_LOCK:
5740 	if (serial->locked_ch == -1)
5741 	    serial->locked_ch = ch->unit;
5742 	if (serial->locked_ch != ch->unit)
5743 	    serial->restart_ch = ch->unit;
5744 	break;
5745 
5746     case ATA_LF_UNLOCK:
5747 	if (serial->locked_ch == ch->unit) {
5748 	    serial->locked_ch = -1;
5749 	    if (serial->restart_ch != -1) {
5750 		if ((ch = ctlr->interrupt[serial->restart_ch].argument)) {
5751 		    serial->restart_ch = -1;
5752 		    spin_unlock_wr(&serial->locked_mtx);
5753 		    ata_start(ch->dev);
5754 		    return -1;
5755 		}
5756 	    }
5757 	}
5758 	break;
5759 
5760     case ATA_LF_WHICH:
5761 	break;
5762     }
5763     res = serial->locked_ch;
5764     spin_unlock_wr(&serial->locked_mtx);
5765     return res;
5766 }
5767 
5768 static void
5769 ata_print_cable(device_t dev, u_int8_t *who)
5770 {
5771     device_printf(dev,
5772 		  "DMA limited to UDMA33, %s found non-ATA66 cable\n", who);
5773 }
5774 
5775 static int
5776 ata_atapi(device_t dev)
5777 {
5778     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
5779     struct ata_device *atadev = device_get_softc(dev);
5780 
5781     return ((atadev->unit == ATA_MASTER && ch->devices & ATA_ATAPI_MASTER) ||
5782 	    (atadev->unit == ATA_SLAVE && ch->devices & ATA_ATAPI_SLAVE));
5783 }
5784 
5785 static int
5786 ata_check_80pin(device_t dev, int mode)
5787 {
5788     struct ata_device *atadev = device_get_softc(dev);
5789 
5790     if (mode > ATA_UDMA2 && !(atadev->param.hwres & ATA_CABLE_ID)) {
5791 	ata_print_cable(dev, "device");
5792 	mode = ATA_UDMA2;
5793     }
5794     return mode;
5795 }
5796 
5797 static int
5798 ata_mode2idx(int mode)
5799 {
5800     if ((mode & ATA_DMA_MASK) == ATA_UDMA0)
5801 	 return (mode & ATA_MODE_MASK) + 8;
5802     if ((mode & ATA_DMA_MASK) == ATA_WDMA0)
5803 	 return (mode & ATA_MODE_MASK) + 5;
5804     return (mode & ATA_MODE_MASK) - ATA_PIO0;
5805 }
5806