xref: /freebsd/sys/dev/ata/chipsets/ata-promise.c (revision 02e9120893770924227138ba49df1edb3896112a)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer,
12  *    without modification, immediately at the beginning of the file.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #include <sys/param.h>
30 #include <sys/module.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/ata.h>
34 #include <sys/bus.h>
35 #include <sys/endian.h>
36 #include <sys/malloc.h>
37 #include <sys/lock.h>
38 #include <sys/mutex.h>
39 #include <sys/sema.h>
40 #include <sys/taskqueue.h>
41 #include <vm/uma.h>
42 #include <machine/stdarg.h>
43 #include <machine/resource.h>
44 #include <machine/bus.h>
45 #include <sys/rman.h>
46 #include <dev/pci/pcivar.h>
47 #include <dev/pci/pcireg.h>
48 #include <dev/ata/ata-all.h>
49 #include <dev/ata/ata-pci.h>
50 #include <ata_if.h>
51 
52 /* local prototypes */
53 static int ata_promise_chipinit(device_t dev);
54 static int ata_promise_ch_attach(device_t dev);
55 static int ata_promise_status(device_t dev);
56 static int ata_promise_dmastart(struct ata_request *request);
57 static int ata_promise_dmastop(struct ata_request *request);
58 static void ata_promise_dmareset(device_t dev);
59 static int ata_promise_setmode(device_t dev, int target, int mode);
60 static int ata_promise_tx2_ch_attach(device_t dev);
61 static int ata_promise_tx2_status(device_t dev);
62 static int ata_promise_mio_ch_attach(device_t dev);
63 static int ata_promise_mio_ch_detach(device_t dev);
64 static void ata_promise_mio_intr(void *data);
65 static int ata_promise_mio_status(device_t dev);
66 static int ata_promise_mio_command(struct ata_request *request);
67 static void ata_promise_mio_reset(device_t dev);
68 static int ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result);
69 static int ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t result);
70 static u_int32_t ata_promise_mio_softreset(device_t dev, int port);
71 static void ata_promise_mio_dmainit(device_t dev);
72 static void ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
73 static int ata_promise_mio_setmode(device_t dev, int target, int mode);
74 static int ata_promise_mio_getrev(device_t dev, int target);
75 static void ata_promise_sx4_intr(void *data);
76 static int ata_promise_sx4_command(struct ata_request *request);
77 static int ata_promise_apkt(u_int8_t *bytep, struct ata_request *request);
78 static void ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt);
79 static void ata_promise_next_hpkt(struct ata_pci_controller *ctlr);
80 
81 /* misc defines */
82 #define PR_OLD		0
83 #define PR_NEW		1
84 #define PR_TX		2
85 #define PR_MIO		3
86 #define PR_TX4		0x01
87 #define PR_SX4X		0x02
88 #define PR_SX6K		0x04
89 #define PR_PATA		0x08
90 #define PR_CMBO		0x10
91 #define PR_CMBO2	0x20
92 #define PR_SATA		0x40
93 #define PR_SATA2	0x80
94 
95 /*
96  * Promise chipset support functions
97  */
98 #define ATA_PDC_APKT_OFFSET     0x00000010
99 #define ATA_PDC_HPKT_OFFSET     0x00000040
100 #define ATA_PDC_ASG_OFFSET      0x00000080
101 #define ATA_PDC_LSG_OFFSET      0x000000c0
102 #define ATA_PDC_HSG_OFFSET      0x00000100
103 #define ATA_PDC_CHN_OFFSET      0x00000400
104 #define ATA_PDC_BUF_BASE        0x00400000
105 #define ATA_PDC_BUF_OFFSET      0x00100000
106 #define ATA_PDC_MAX_HPKT        8
107 #define ATA_PDC_WRITE_REG       0x00
108 #define ATA_PDC_WRITE_CTL       0x0e
109 #define ATA_PDC_WRITE_END       0x08
110 #define ATA_PDC_WAIT_NBUSY      0x10
111 #define ATA_PDC_WAIT_READY      0x18
112 #define ATA_PDC_1B              0x20
113 #define ATA_PDC_2B              0x40
114 
115 struct host_packet {
116     u_int32_t                   addr;
117     TAILQ_ENTRY(host_packet)    chain;
118 };
119 
120 struct ata_promise_sx4 {
121     struct mtx                  mtx;
122     TAILQ_HEAD(, host_packet)   queue;
123     int                         busy;
124 };
125 
126 static int
127 ata_promise_probe(device_t dev)
128 {
129     struct ata_pci_controller *ctlr = device_get_softc(dev);
130     const struct ata_chip_id *idx;
131     static const struct ata_chip_id ids[] =
132     {{ ATA_PDC20246,  0, PR_OLD, 0x00,     ATA_UDMA2, "PDC20246" },
133      { ATA_PDC20262,  0, PR_NEW, 0x00,     ATA_UDMA4, "PDC20262" },
134      { ATA_PDC20263,  0, PR_NEW, 0x00,     ATA_UDMA4, "PDC20263" },
135      { ATA_PDC20265,  0, PR_NEW, 0x00,     ATA_UDMA5, "PDC20265" },
136      { ATA_PDC20267,  0, PR_NEW, 0x00,     ATA_UDMA5, "PDC20267" },
137      { ATA_PDC20268,  0, PR_TX,  PR_TX4,   ATA_UDMA5, "PDC20268" },
138      { ATA_PDC20269,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20269" },
139      { ATA_PDC20270,  0, PR_TX,  PR_TX4,   ATA_UDMA5, "PDC20270" },
140      { ATA_PDC20271,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20271" },
141      { ATA_PDC20275,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20275" },
142      { ATA_PDC20276,  0, PR_TX,  PR_SX6K,  ATA_UDMA6, "PDC20276" },
143      { ATA_PDC20277,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20277" },
144      { ATA_PDC20318,  0, PR_MIO, PR_SATA,  ATA_SA150, "PDC20318" },
145      { ATA_PDC20319,  0, PR_MIO, PR_SATA,  ATA_SA150, "PDC20319" },
146      { ATA_PDC20371,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20371" },
147      { ATA_PDC20375,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20375" },
148      { ATA_PDC20376,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20376" },
149      { ATA_PDC20377,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20377" },
150      { ATA_PDC20378,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20378" },
151      { ATA_PDC20379,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20379" },
152      { ATA_PDC20571,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20571" },
153      { ATA_PDC20575,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20575" },
154      { ATA_PDC20579,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20579" },
155      { ATA_PDC20771,  0, PR_MIO, PR_CMBO2, ATA_SA300, "PDC20771" },
156      { ATA_PDC40775,  0, PR_MIO, PR_CMBO2, ATA_SA300, "PDC40775" },
157      { ATA_PDC20617,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20617" },
158      { ATA_PDC20618,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20618" },
159      { ATA_PDC20619,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20619" },
160      { ATA_PDC20620,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20620" },
161      { ATA_PDC20621,  0, PR_MIO, PR_SX4X,  ATA_UDMA5, "PDC20621" },
162      { ATA_PDC20622,  0, PR_MIO, PR_SX4X,  ATA_SA150, "PDC20622" },
163      { ATA_PDC40518,  0, PR_MIO, PR_SATA2, ATA_SA150, "PDC40518" },
164      { ATA_PDC40519,  0, PR_MIO, PR_SATA2, ATA_SA150, "PDC40519" },
165      { ATA_PDC40718,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40718" },
166      { ATA_PDC40719,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40719" },
167      { ATA_PDC40779,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40779" },
168      { 0, 0, 0, 0, 0, 0}};
169     char buffer[64];
170     uintptr_t devid = 0;
171 
172     if (pci_get_vendor(dev) != ATA_PROMISE_ID)
173 	return ENXIO;
174 
175     if (!(idx = ata_match_chip(dev, ids)))
176 	return ENXIO;
177 
178     /* if we are on a SuperTrak SX6000 dont attach */
179     if ((idx->cfg2 & PR_SX6K) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
180 	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
181 		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
182 	devid == ATA_I960RM)
183 	return ENXIO;
184 
185     strcpy(buffer, "Promise ");
186     strcat(buffer, idx->text);
187 
188     /* if we are on a FastTrak TX4, adjust the interrupt resource */
189     if ((idx->cfg2 & PR_TX4) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
190 	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
191 		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
192 	((devid == ATA_DEC_21150) || (devid == ATA_DEC_21150_1))) {
193 	static rman_res_t start = 0, end = 0;
194 
195 	if (pci_get_slot(dev) == 1) {
196 	    bus_get_resource(dev, SYS_RES_IRQ, 0, &start, &end);
197 	    strcat(buffer, " (channel 0+1)");
198 	}
199 	else if (pci_get_slot(dev) == 2 && start && end) {
200 	    bus_set_resource(dev, SYS_RES_IRQ, 0, start, end);
201 	    strcat(buffer, " (channel 2+3)");
202 	}
203 	else {
204 	    start = end = 0;
205 	}
206     }
207     sprintf(buffer, "%s %s controller", buffer, ata_mode2str(idx->max_dma));
208     device_set_desc_copy(dev, buffer);
209     ctlr->chip = idx;
210     ctlr->chipinit = ata_promise_chipinit;
211     return (BUS_PROBE_LOW_PRIORITY);
212 }
213 
214 static int
215 ata_promise_chipinit(device_t dev)
216 {
217     struct ata_pci_controller *ctlr = device_get_softc(dev);
218     int stat_reg;
219 
220     if (ata_setup_interrupt(dev, ata_generic_intr))
221 	return ENXIO;
222 
223     switch  (ctlr->chip->cfg1) {
224     case PR_NEW:
225 	/* setup clocks */
226 	ATA_OUTB(ctlr->r_res1, 0x11, ATA_INB(ctlr->r_res1, 0x11) | 0x0a);
227 	/* FALLTHROUGH */
228 
229     case PR_OLD:
230 	/* enable burst mode */
231 	ATA_OUTB(ctlr->r_res1, 0x1f, ATA_INB(ctlr->r_res1, 0x1f) | 0x01);
232 	ctlr->ch_attach = ata_promise_ch_attach;
233 	ctlr->ch_detach = ata_pci_ch_detach;
234 	ctlr->setmode = ata_promise_setmode;
235 	return 0;
236 
237     case PR_TX:
238 	ctlr->ch_attach = ata_promise_tx2_ch_attach;
239 	ctlr->ch_detach = ata_pci_ch_detach;
240 	ctlr->setmode = ata_promise_setmode;
241 	return 0;
242 
243     case PR_MIO:
244 	ctlr->r_type1 = SYS_RES_MEMORY;
245 	ctlr->r_rid1 = PCIR_BAR(4);
246 	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
247 						    &ctlr->r_rid1, RF_ACTIVE)))
248 	    goto failnfree;
249 
250 	ctlr->r_type2 = SYS_RES_MEMORY;
251 	ctlr->r_rid2 = PCIR_BAR(3);
252 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
253 						    &ctlr->r_rid2, RF_ACTIVE)))
254 	    goto failnfree;
255 
256 	if (ctlr->chip->cfg2 == PR_SX4X) {
257 	    struct ata_promise_sx4 *hpkt;
258 	    u_int32_t dimm = ATA_INL(ctlr->r_res2, 0x000c0080);
259 
260 	    if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
261 		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
262 			       ata_promise_sx4_intr, ctlr, &ctlr->handle)) {
263 		device_printf(dev, "unable to setup interrupt\n");
264 		goto failnfree;
265 	    }
266 
267 	    /* print info about cache memory */
268 	    device_printf(dev, "DIMM size %dMB @ 0x%08x%s\n",
269 			  (((dimm >> 16) & 0xff)-((dimm >> 24) & 0xff)+1) << 4,
270 			  ((dimm >> 24) & 0xff),
271 			  ATA_INL(ctlr->r_res2, 0x000c0088) & (1<<16) ?
272 			  " ECC enabled" : "" );
273 
274 	    /* adjust cache memory parameters */
275 	    ATA_OUTL(ctlr->r_res2, 0x000c000c,
276 		     (ATA_INL(ctlr->r_res2, 0x000c000c) & 0xffff0000));
277 
278 	    /* setup host packet controls */
279 	    hpkt = malloc(sizeof(struct ata_promise_sx4),
280 			  M_ATAPCI, M_NOWAIT | M_ZERO);
281 	    if (hpkt == NULL) {
282 		device_printf(dev, "Cannot allocate HPKT\n");
283 		goto failnfree;
284 	    }
285 	    mtx_init(&hpkt->mtx, "ATA promise HPKT lock", NULL, MTX_DEF);
286 	    TAILQ_INIT(&hpkt->queue);
287 	    hpkt->busy = 0;
288 	    ctlr->chipset_data = hpkt;
289 	    ctlr->ch_attach = ata_promise_mio_ch_attach;
290 	    ctlr->ch_detach = ata_promise_mio_ch_detach;
291 	    ctlr->reset = ata_promise_mio_reset;
292 	    ctlr->setmode = ata_promise_setmode;
293 	    ctlr->channels = 4;
294 	    return 0;
295 	}
296 
297 	/* mio type controllers need an interrupt intercept */
298 	if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
299 	    bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
300 			       ata_promise_mio_intr, ctlr, &ctlr->handle)) {
301 		device_printf(dev, "unable to setup interrupt\n");
302 		goto failnfree;
303 	}
304 
305 	switch (ctlr->chip->cfg2) {
306 	case PR_PATA:
307 	    ctlr->channels = ((ATA_INL(ctlr->r_res2, 0x48) & 0x01) > 0) +
308 			     ((ATA_INL(ctlr->r_res2, 0x48) & 0x02) > 0) + 2;
309 	    goto sata150;
310 	case PR_CMBO:
311 	    ctlr->channels = 3;
312 	    goto sata150;
313 	case PR_SATA:
314 	    ctlr->channels = 4;
315 sata150:
316 	    stat_reg = 0x6c;
317 	    break;
318 
319 	case PR_CMBO2:
320 	    ctlr->channels = 3;
321 	    goto sataii;
322 	case PR_SATA2:
323 	default:
324 	    ctlr->channels = 4;
325 sataii:
326 	    stat_reg = 0x60;
327 	    break;
328 	}
329 
330 	/* prime fake interrupt register */
331 	ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
332 
333 	/* clear SATA status and unmask interrupts */
334 	ATA_OUTL(ctlr->r_res2, stat_reg, 0x000000ff);
335 
336 	/* enable "long burst length" on gen2 chips */
337 	if ((ctlr->chip->cfg2 == PR_SATA2) || (ctlr->chip->cfg2 == PR_CMBO2))
338 	    ATA_OUTL(ctlr->r_res2, 0x44, ATA_INL(ctlr->r_res2, 0x44) | 0x2000);
339 
340 	ctlr->ch_attach = ata_promise_mio_ch_attach;
341 	ctlr->ch_detach = ata_promise_mio_ch_detach;
342 	ctlr->reset = ata_promise_mio_reset;
343 	ctlr->setmode = ata_promise_mio_setmode;
344 	ctlr->getrev = ata_promise_mio_getrev;
345 
346 	return 0;
347     }
348 
349 failnfree:
350     if (ctlr->r_res2)
351 	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
352     if (ctlr->r_res1)
353 	bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
354     return ENXIO;
355 }
356 
357 static int
358 ata_promise_ch_attach(device_t dev)
359 {
360     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
361     struct ata_channel *ch = device_get_softc(dev);
362 
363     if (ata_pci_ch_attach(dev))
364 	return ENXIO;
365 
366     if (ctlr->chip->cfg1 == PR_NEW) {
367         ch->dma.start = ata_promise_dmastart;
368         ch->dma.stop = ata_promise_dmastop;
369         ch->dma.reset = ata_promise_dmareset;
370     }
371 
372     ch->hw.status = ata_promise_status;
373     ch->flags |= ATA_NO_ATAPI_DMA;
374     ch->flags |= ATA_CHECKS_CABLE;
375     return 0;
376 }
377 
378 static int
379 ata_promise_status(device_t dev)
380 {
381     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
382     struct ata_channel *ch = device_get_softc(dev);
383 
384     if (ATA_INL(ctlr->r_res1, 0x1c) & (ch->unit ? 0x00004000 : 0x00000400)) {
385 	return ata_pci_status(dev);
386     }
387     return 0;
388 }
389 
390 static int
391 ata_promise_dmastart(struct ata_request *request)
392 {
393     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
394     struct ata_channel *ch = device_get_softc(request->parent);
395 
396     if (request->flags & ATA_R_48BIT) {
397 	ATA_OUTB(ctlr->r_res1, 0x11,
398 		 ATA_INB(ctlr->r_res1, 0x11) | (ch->unit ? 0x08 : 0x02));
399 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20,
400 		 ((request->flags & ATA_R_READ) ? 0x05000000 : 0x06000000) |
401 		 (request->bytecount >> 1));
402     }
403     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
404 		 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
405     ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
406     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
407 		 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0) |
408 		 ATA_BMCMD_START_STOP);
409     ch->dma.flags |= ATA_DMA_ACTIVE;
410     return 0;
411 }
412 
413 static int
414 ata_promise_dmastop(struct ata_request *request)
415 {
416     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
417     struct ata_channel *ch = device_get_softc(request->parent);
418     int error;
419 
420     if (request->flags & ATA_R_48BIT) {
421 	ATA_OUTB(ctlr->r_res1, 0x11,
422 		 ATA_INB(ctlr->r_res1, 0x11) & ~(ch->unit ? 0x08 : 0x02));
423 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20, 0);
424     }
425     error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT);
426     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
427 		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
428     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
429     ch->dma.flags &= ~ATA_DMA_ACTIVE;
430     return error;
431 }
432 
433 static void
434 ata_promise_dmareset(device_t dev)
435 {
436     struct ata_channel *ch = device_get_softc(dev);
437 
438     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
439 		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
440     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
441     ch->flags &= ~ATA_DMA_ACTIVE;
442 }
443 
444 static int
445 ata_promise_setmode(device_t dev, int target, int mode)
446 {
447     device_t parent = device_get_parent(dev);
448     struct ata_pci_controller *ctlr = device_get_softc(parent);
449     struct ata_channel *ch = device_get_softc(dev);
450     int devno = (ch->unit << 1) + target;
451     static const uint32_t timings[][2] = {
452     /*    PR_OLD      PR_NEW               mode */
453 	{ 0x004ff329, 0x004fff2f },     /* PIO 0 */
454 	{ 0x004fec25, 0x004ff82a },     /* PIO 1 */
455 	{ 0x004fe823, 0x004ff026 },     /* PIO 2 */
456 	{ 0x004fe622, 0x004fec24 },     /* PIO 3 */
457 	{ 0x004fe421, 0x004fe822 },     /* PIO 4 */
458 	{ 0x004567f3, 0x004acef6 },     /* MWDMA 0 */
459 	{ 0x004467f3, 0x0048cef6 },     /* MWDMA 1 */
460 	{ 0x004367f3, 0x0046cef6 },     /* MWDMA 2 */
461 	{ 0x004367f3, 0x0046cef6 },     /* UDMA 0 */
462 	{ 0x004247f3, 0x00448ef6 },     /* UDMA 1 */
463 	{ 0x004127f3, 0x00436ef6 },     /* UDMA 2 */
464 	{ 0,          0x00424ef6 },     /* UDMA 3 */
465 	{ 0,          0x004127f3 },     /* UDMA 4 */
466 	{ 0,          0x004127f3 }      /* UDMA 5 */
467     };
468 
469     mode = min(mode, ctlr->chip->max_dma);
470 
471     switch (ctlr->chip->cfg1) {
472     case PR_OLD:
473     case PR_NEW:
474 	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
475 	    (pci_read_config(parent, 0x50, 2) &
476 				 (ch->unit ? 1 << 11 : 1 << 10))) {
477 	    ata_print_cable(dev, "controller");
478 	    mode = ATA_UDMA2;
479 	}
480 	break;
481 
482     case PR_TX:
483 	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
484 	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
485 	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
486 	    ata_print_cable(dev, "controller");
487 	    mode = ATA_UDMA2;
488 	}
489 	break;
490 
491     case PR_MIO:
492 	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
493 	    (ATA_INL(ctlr->r_res2,
494 		     (ctlr->chip->cfg2 & PR_SX4X ? 0x000c0260 : 0x0260) +
495 		     (ch->unit << 7)) & 0x01000000)) {
496 	    ata_print_cable(dev, "controller");
497 	    mode = ATA_UDMA2;
498 	}
499 	break;
500     }
501 
502 	if (ctlr->chip->cfg1 < PR_TX)
503 	    pci_write_config(parent, 0x60 + (devno << 2),
504 			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
505 	return (mode);
506 }
507 
508 static int
509 ata_promise_tx2_ch_attach(device_t dev)
510 {
511     struct ata_channel *ch = device_get_softc(dev);
512 
513     if (ata_pci_ch_attach(dev))
514 	return ENXIO;
515 
516     ch->hw.status = ata_promise_tx2_status;
517     ch->flags |= ATA_CHECKS_CABLE;
518     return 0;
519 }
520 
521 static int
522 ata_promise_tx2_status(device_t dev)
523 {
524     struct ata_channel *ch = device_get_softc(dev);
525 
526     ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
527     if (ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x20) {
528 	return ata_pci_status(dev);
529     }
530     return 0;
531 }
532 
533 static int
534 ata_promise_mio_ch_attach(device_t dev)
535 {
536     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
537     struct ata_channel *ch = device_get_softc(dev);
538     int offset = (ctlr->chip->cfg2 & PR_SX4X) ? 0x000c0000 : 0;
539     int i;
540 
541     ata_promise_mio_dmainit(dev);
542 
543     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
544 	ch->r_io[i].res = ctlr->r_res2;
545 	ch->r_io[i].offset = offset + 0x0200 + (i << 2) + (ch->unit << 7);
546     }
547     ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
548     ch->r_io[ATA_CONTROL].offset = offset + 0x0238 + (ch->unit << 7);
549     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
550     ata_default_registers(dev);
551     if ((ctlr->chip->cfg2 & (PR_SATA | PR_SATA2)) ||
552 	((ctlr->chip->cfg2 & (PR_CMBO | PR_CMBO2)) && ch->unit < 2)) {
553 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
554 	ch->r_io[ATA_SSTATUS].offset = 0x400 + (ch->unit << 8);
555 	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
556 	ch->r_io[ATA_SERROR].offset = 0x404 + (ch->unit << 8);
557 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
558 	ch->r_io[ATA_SCONTROL].offset = 0x408 + (ch->unit << 8);
559 	ch->flags |= ATA_NO_SLAVE;
560 	ch->flags |= ATA_SATA;
561     }
562     ch->flags |= ATA_USE_16BIT;
563     ch->flags |= ATA_CHECKS_CABLE;
564 
565     ata_generic_hw(dev);
566     if (ctlr->chip->cfg2 & PR_SX4X) {
567 	ch->hw.command = ata_promise_sx4_command;
568     }
569     else {
570 	ch->hw.command = ata_promise_mio_command;
571 	ch->hw.status = ata_promise_mio_status;
572 	ch->hw.softreset = ata_promise_mio_softreset;
573 	ch->hw.pm_read = ata_promise_mio_pm_read;
574 	ch->hw.pm_write = ata_promise_mio_pm_write;
575      }
576     return 0;
577 }
578 
579 static int
580 ata_promise_mio_ch_detach(device_t dev)
581 {
582 
583     ata_dmafini(dev);
584     return (0);
585 }
586 
587 static void
588 ata_promise_mio_intr(void *data)
589 {
590     struct ata_pci_controller *ctlr = data;
591     struct ata_channel *ch;
592     u_int32_t vector;
593     int unit;
594 
595     /*
596      * since reading interrupt status register on early "mio" chips
597      * clears the status bits we cannot read it for each channel later on
598      * in the generic interrupt routine.
599      */
600     vector = ATA_INL(ctlr->r_res2, 0x040);
601     ATA_OUTL(ctlr->r_res2, 0x040, vector);
602     ctlr->chipset_data = (void *)(uintptr_t)vector;
603 
604     for (unit = 0; unit < ctlr->channels; unit++) {
605 	if ((ch = ctlr->interrupt[unit].argument))
606 	    ctlr->interrupt[unit].function(ch);
607     }
608 
609     ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
610 }
611 
612 static int
613 ata_promise_mio_status(device_t dev)
614 {
615     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
616     struct ata_channel *ch = device_get_softc(dev);
617     u_int32_t stat_reg, vector, status;
618 
619     switch (ctlr->chip->cfg2) {
620     case PR_PATA:
621     case PR_CMBO:
622     case PR_SATA:
623 	stat_reg = 0x6c;
624 	break;
625     case PR_CMBO2:
626     case PR_SATA2:
627     default:
628 	stat_reg = 0x60;
629 	break;
630     }
631 
632     /* read and acknowledge interrupt */
633     vector = (uint32_t)(uintptr_t)ctlr->chipset_data;
634 
635     /* read and clear interface status */
636     status = ATA_INL(ctlr->r_res2, stat_reg);
637     ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
638 
639     /* check for and handle disconnect events */
640     if (status & (0x00000001 << ch->unit)) {
641 	if (bootverbose)
642 	    device_printf(dev, "DISCONNECT requested\n");
643 	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
644     }
645 
646     /* check for and handle connect events */
647     if (status & (0x00000010 << ch->unit)) {
648 	if (bootverbose)
649 	    device_printf(dev, "CONNECT requested\n");
650 	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
651     }
652 
653     /* do we have any device action ? */
654     return (vector & (1 << (ch->unit + 1)));
655 }
656 
657 static int
658 ata_promise_mio_command(struct ata_request *request)
659 {
660     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
661     struct ata_channel *ch = device_get_softc(request->parent);
662 
663     u_int32_t *wordp = (u_int32_t *)ch->dma.work;
664 
665     ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
666 
667     if ((ctlr->chip->cfg2 == PR_SATA2) ||
668         ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
669 	/* set portmultiplier port */
670 	ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), request->unit & 0x0f);
671     }
672 
673     /* XXX SOS add ATAPI commands support later */
674     switch (request->u.ata.command) {
675     default:
676 	return ata_generic_command(request);
677 
678     case ATA_READ_DMA:
679     case ATA_READ_DMA48:
680 	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
681 	break;
682 
683     case ATA_WRITE_DMA:
684     case ATA_WRITE_DMA48:
685 	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
686 	break;
687     }
688     wordp[1] = htole32(request->dma->sg_bus);
689     wordp[2] = 0;
690     ata_promise_apkt((u_int8_t*)wordp, request);
691 
692     ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma.work_bus);
693     return 0;
694 }
695 
696 static void
697 ata_promise_mio_reset(device_t dev)
698 {
699     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
700     struct ata_channel *ch = device_get_softc(dev);
701     struct ata_promise_sx4 *hpktp;
702 
703     switch (ctlr->chip->cfg2) {
704     case PR_SX4X:
705 
706 	/* softreset channel ATA module */
707 	hpktp = ctlr->chipset_data;
708 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
709 	ata_udelay(1000);
710 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
711 		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
712 		  ~0x00003f9f) | (ch->unit + 1));
713 
714 	/* softreset HOST module */ /* XXX SOS what about other outstandings */
715 	mtx_lock(&hpktp->mtx);
716 	ATA_OUTL(ctlr->r_res2, 0xc012c,
717 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
718 	DELAY(10);
719 	ATA_OUTL(ctlr->r_res2, 0xc012c,
720 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
721 	hpktp->busy = 0;
722 	mtx_unlock(&hpktp->mtx);
723 	ata_generic_reset(dev);
724 	break;
725 
726     case PR_PATA:
727     case PR_CMBO:
728     case PR_SATA:
729 	if ((ctlr->chip->cfg2 == PR_SATA) ||
730 	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
731 	    /* mask plug/unplug intr */
732 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
733 	}
734 
735 	/* softreset channels ATA module */
736 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
737 	ata_udelay(10000);
738 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
739 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
740 		  ~0x00003f9f) | (ch->unit + 1));
741 
742 	if ((ctlr->chip->cfg2 == PR_SATA) ||
743 	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
744 	    if (ata_sata_phy_reset(dev, -1, 1))
745 		ata_generic_reset(dev);
746 	    else
747 		ch->devices = 0;
748 
749 	    /* reset and enable plug/unplug intr */
750 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
751 	}
752 	else
753 	    ata_generic_reset(dev);
754 	break;
755 
756     case PR_CMBO2:
757     case PR_SATA2:
758 	if ((ctlr->chip->cfg2 == PR_SATA2) ||
759 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
760 	    /* set portmultiplier port */
761 	    //ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
762 
763 	    /* mask plug/unplug intr */
764 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
765 	}
766 
767 	/* softreset channels ATA module */
768 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
769 	ata_udelay(10000);
770 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
771 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
772 		  ~0x00003f9f) | (ch->unit + 1));
773 
774 	if ((ctlr->chip->cfg2 == PR_SATA2) ||
775 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
776 	    /* set PHY mode to "improved" */
777 	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
778 		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
779 		     ~0x00000003) | 0x00000001);
780 
781 	    if (ata_sata_phy_reset(dev, -1, 1)) {
782 		u_int32_t signature = ch->hw.softreset(dev, ATA_PM);
783 
784 		if (bootverbose)
785         	    device_printf(dev, "SIGNATURE: %08x\n", signature);
786 
787 		switch (signature >> 16) {
788 		case 0x0000:
789 		    ch->devices = ATA_ATA_MASTER;
790 		    break;
791 		case 0x9669:
792 		    ch->devices = ATA_PORTMULTIPLIER;
793 		    ata_pm_identify(dev);
794 		    break;
795 		case 0xeb14:
796 		    ch->devices = ATA_ATAPI_MASTER;
797 		    break;
798 		default: /* SOS XXX */
799 		    if (bootverbose)
800 			device_printf(dev,
801 				      "No signature, assuming disk device\n");
802 		    ch->devices = ATA_ATA_MASTER;
803 		}
804 		if (bootverbose)
805 		    device_printf(dev, "promise_mio_reset devices=%08x\n",
806 		    		  ch->devices);
807 
808 	    } else
809 		ch->devices = 0;
810 
811 	    /* reset and enable plug/unplug intr */
812 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
813 
814 	    ///* set portmultiplier port */
815 	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
816 	}
817 	else
818 	    ata_generic_reset(dev);
819 	break;
820     }
821 }
822 
823 static int
824 ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result)
825 {
826     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
827     struct ata_channel *ch = device_get_softc(dev);
828     int timeout = 0;
829 
830     if (port < 0) {
831 	*result = ATA_IDX_INL(ch, reg);
832 	return (0);
833     }
834     if (port < ATA_PM) {
835 	switch (reg) {
836 	case ATA_SSTATUS:
837 	    reg = 0;
838 	    break;
839 	case ATA_SERROR:
840 	    reg = 1;
841 	    break;
842 	case ATA_SCONTROL:
843 	    reg = 2;
844 	    break;
845 	default:
846 	    return (EINVAL);
847 	}
848     }
849     /* set portmultiplier port */
850     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
851 
852     ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
853     ATA_IDX_OUTB(ch, ATA_DRIVE, port);
854 
855     ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_READ_PM);
856 
857     while (timeout < 1000000) {
858 	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
859 	if (!(status & ATA_S_BUSY))
860 	    break;
861 	timeout += 1000;
862 	DELAY(1000);
863     }
864     if (timeout >= 1000000)
865 	return ATA_E_ABORT;
866 
867     *result = ATA_IDX_INB(ch, ATA_COUNT) |
868 	      (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
869 	      (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
870 	      (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
871     return 0;
872 }
873 
874 static int
875 ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t value)
876 {
877     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
878     struct ata_channel *ch = device_get_softc(dev);
879     int timeout = 0;
880 
881     if (port < 0) {
882 	ATA_IDX_OUTL(ch, reg, value);
883 	return (0);
884     }
885     if (port < ATA_PM) {
886 	switch (reg) {
887 	case ATA_SSTATUS:
888 	    reg = 0;
889 	    break;
890 	case ATA_SERROR:
891 	    reg = 1;
892 	    break;
893 	case ATA_SCONTROL:
894 	    reg = 2;
895 	    break;
896 	default:
897 	    return (EINVAL);
898 	}
899     }
900     /* set portmultiplier port */
901     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
902 
903     ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
904     ATA_IDX_OUTB(ch, ATA_DRIVE, port);
905     ATA_IDX_OUTB(ch, ATA_COUNT, value & 0xff);
906     ATA_IDX_OUTB(ch, ATA_SECTOR, (value >> 8) & 0xff);
907     ATA_IDX_OUTB(ch, ATA_CYL_LSB, (value >> 16) & 0xff);
908     ATA_IDX_OUTB(ch, ATA_CYL_MSB, (value >> 24) & 0xff);
909 
910     ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_WRITE_PM);
911 
912     while (timeout < 1000000) {
913 	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
914 	if (!(status & ATA_S_BUSY))
915 	    break;
916 	timeout += 1000;
917 	DELAY(1000);
918     }
919     if (timeout >= 1000000)
920 	return ATA_E_ABORT;
921 
922     return ATA_IDX_INB(ch, ATA_ERROR);
923 }
924 
925 /* must be called with ATA channel locked and state_mtx held */
926 static u_int32_t
927 ata_promise_mio_softreset(device_t dev, int port)
928 {
929     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
930     struct ata_channel *ch = device_get_softc(dev);
931     int timeout;
932 
933     /* set portmultiplier port */
934     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), port & 0x0f);
935 
936     /* softreset device on this channel */
937     ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | ATA_DEV(ATA_MASTER));
938     DELAY(10);
939     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS | ATA_A_RESET);
940     ata_udelay(10000);
941     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS);
942     ata_udelay(150000);
943     ATA_IDX_INB(ch, ATA_ERROR);
944 
945     /* wait for BUSY to go inactive */
946     for (timeout = 0; timeout < 100; timeout++) {
947 	u_int8_t /* err, */ stat;
948 
949 	/* err = */ ATA_IDX_INB(ch, ATA_ERROR);
950 	stat = ATA_IDX_INB(ch, ATA_STATUS);
951 
952 	//if (stat == err && timeout > (stat & ATA_S_BUSY ? 100 : 10))
953 	    //break;
954 
955 	if (!(stat & ATA_S_BUSY)) {
956 	    //if ((err & 0x7f) == ATA_E_ILI) {
957 		return ATA_IDX_INB(ch, ATA_COUNT) |
958 		       (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
959 		       (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
960 		       (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
961 	    //}
962 	    //else if (stat & 0x0f) {
963 		//stat |= ATA_S_BUSY;
964 	    //}
965 	}
966 
967 	if (!(stat & ATA_S_BUSY) || (stat == 0xff && timeout > 10))
968 	    break;
969 	ata_udelay(100000);
970     }
971     return -1;
972 }
973 
974 static void
975 ata_promise_mio_dmainit(device_t dev)
976 {
977     struct ata_channel *ch = device_get_softc(dev);
978 
979     /* note start and stop are not used here */
980     ch->dma.setprd = ata_promise_mio_setprd;
981     ch->dma.max_iosize = 65536;
982     ata_dmainit(dev);
983 }
984 
985 #define MAXLASTSGSIZE (32 * sizeof(u_int32_t))
986 static void
987 ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
988 {
989     struct ata_dmasetprd_args *args = xsc;
990     struct ata_dma_prdentry *prd = args->dmatab;
991     int i;
992 
993     if ((args->error = error))
994 	return;
995 
996     for (i = 0; i < nsegs; i++) {
997 	prd[i].addr = htole32(segs[i].ds_addr);
998 	prd[i].count = htole32(segs[i].ds_len);
999     }
1000     if (segs[i - 1].ds_len > MAXLASTSGSIZE) {
1001 	//printf("split last SG element of %u\n", segs[i - 1].ds_len);
1002 	prd[i - 1].count = htole32(segs[i - 1].ds_len - MAXLASTSGSIZE);
1003 	prd[i].count = htole32(MAXLASTSGSIZE);
1004 	prd[i].addr = htole32(segs[i - 1].ds_addr +
1005 			      (segs[i - 1].ds_len - MAXLASTSGSIZE));
1006 	nsegs++;
1007 	i++;
1008     }
1009     prd[i - 1].count |= htole32(ATA_DMA_EOT);
1010     KASSERT(nsegs <= ATA_DMA_ENTRIES, ("too many DMA segment entries\n"));
1011     args->nsegs = nsegs;
1012 }
1013 
1014 static int
1015 ata_promise_mio_setmode(device_t dev, int target, int mode)
1016 {
1017         struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1018         struct ata_channel *ch = device_get_softc(dev);
1019 
1020         if ( (ctlr->chip->cfg2 == PR_SATA) ||
1021     	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1022 	     (ctlr->chip->cfg2 == PR_SATA2) ||
1023 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1024 		mode = ata_sata_setmode(dev, target, mode);
1025 	else
1026 		mode = ata_promise_setmode(dev, target, mode);
1027 	return (mode);
1028 }
1029 
1030 static int
1031 ata_promise_mio_getrev(device_t dev, int target)
1032 {
1033         struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1034         struct ata_channel *ch = device_get_softc(dev);
1035 
1036         if ( (ctlr->chip->cfg2 == PR_SATA) ||
1037     	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1038 	     (ctlr->chip->cfg2 == PR_SATA2) ||
1039 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1040 		return (ata_sata_getrev(dev, target));
1041 	else
1042 		return (0);
1043 }
1044 
1045 static void
1046 ata_promise_sx4_intr(void *data)
1047 {
1048     struct ata_pci_controller *ctlr = data;
1049     struct ata_channel *ch;
1050     u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
1051     int unit;
1052 
1053     for (unit = 0; unit < ctlr->channels; unit++) {
1054 	if (vector & (1 << (unit + 1)))
1055 	    if ((ch = ctlr->interrupt[unit].argument))
1056 		ctlr->interrupt[unit].function(ch);
1057 	if (vector & (1 << (unit + 5)))
1058 	    if ((ch = ctlr->interrupt[unit].argument))
1059 		ata_promise_queue_hpkt(ctlr,
1060 				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1061 					       ATA_PDC_HPKT_OFFSET));
1062 	if (vector & (1 << (unit + 9))) {
1063 	    ata_promise_next_hpkt(ctlr);
1064 	    if ((ch = ctlr->interrupt[unit].argument))
1065 		ctlr->interrupt[unit].function(ch);
1066 	}
1067 	if (vector & (1 << (unit + 13))) {
1068 	    ata_promise_next_hpkt(ctlr);
1069 	    if ((ch = ctlr->interrupt[unit].argument))
1070 		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1071 			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1072 			 ATA_PDC_APKT_OFFSET));
1073 	}
1074     }
1075 }
1076 
1077 static int
1078 ata_promise_sx4_command(struct ata_request *request)
1079 {
1080     device_t gparent = device_get_parent(request->parent);
1081     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1082     struct ata_channel *ch = device_get_softc(request->parent);
1083     struct ata_dma_prdentry *prd;
1084     caddr_t window = rman_get_virtual(ctlr->r_res1);
1085     u_int32_t *wordp;
1086     int i, idx;
1087 
1088     /* XXX SOS add ATAPI commands support later */
1089     switch (request->u.ata.command) {
1090 
1091     default:
1092 	return -1;
1093 
1094     case ATA_ATA_IDENTIFY:
1095     case ATA_READ:
1096     case ATA_READ48:
1097     case ATA_READ_MUL:
1098     case ATA_READ_MUL48:
1099     case ATA_WRITE:
1100     case ATA_WRITE48:
1101     case ATA_WRITE_MUL:
1102     case ATA_WRITE_MUL48:
1103 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1104 	return ata_generic_command(request);
1105 
1106     case ATA_SETFEATURES:
1107     case ATA_FLUSHCACHE:
1108     case ATA_FLUSHCACHE48:
1109     case ATA_SLEEP:
1110     case ATA_SET_MULTI:
1111 	wordp = (u_int32_t *)
1112 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1113 	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
1114 	wordp[1] = 0;
1115 	wordp[2] = 0;
1116 	ata_promise_apkt((u_int8_t *)wordp, request);
1117 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1118 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1119 	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1120 		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
1121 	return 0;
1122 
1123     case ATA_READ_DMA:
1124     case ATA_READ_DMA48:
1125     case ATA_WRITE_DMA:
1126     case ATA_WRITE_DMA48:
1127 	prd = request->dma->sg;
1128 	wordp = (u_int32_t *)
1129 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
1130 	i = idx = 0;
1131 	do {
1132 	    wordp[idx++] = prd[i].addr;
1133 	    wordp[idx++] = prd[i].count;
1134 	} while (!(prd[i++].count & ATA_DMA_EOT));
1135 
1136 	wordp = (u_int32_t *)
1137 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
1138 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1139 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1140 
1141 	wordp = (u_int32_t *)
1142 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
1143 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1144 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1145 
1146 	wordp = (u_int32_t *)
1147 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
1148 	if (request->flags & ATA_R_READ)
1149 	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
1150 	if (request->flags & ATA_R_WRITE)
1151 	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
1152 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
1153 	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
1154 	wordp[3] = 0;
1155 
1156 	wordp = (u_int32_t *)
1157 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1158 	if (request->flags & ATA_R_READ)
1159 	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
1160 	if (request->flags & ATA_R_WRITE)
1161 	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
1162 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
1163 	wordp[2] = 0;
1164 	ata_promise_apkt((u_int8_t *)wordp, request);
1165 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1166 
1167 	if (request->flags & ATA_R_READ) {
1168 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
1169 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
1170 	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1171 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
1172 	}
1173 	if (request->flags & ATA_R_WRITE) {
1174 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
1175 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
1176 	    ata_promise_queue_hpkt(ctlr,
1177 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
1178 	}
1179 	return 0;
1180     }
1181 }
1182 
1183 static int
1184 ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
1185 {
1186     int i = 12;
1187 
1188     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
1189     bytep[i++] = ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit);
1190     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
1191     bytep[i++] = ATA_A_4BIT;
1192 
1193     if (request->flags & ATA_R_48BIT) {
1194 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1195 	bytep[i++] = request->u.ata.feature >> 8;
1196 	bytep[i++] = request->u.ata.feature;
1197 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
1198 	bytep[i++] = request->u.ata.count >> 8;
1199 	bytep[i++] = request->u.ata.count;
1200 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1201 	bytep[i++] = request->u.ata.lba >> 24;
1202 	bytep[i++] = request->u.ata.lba;
1203 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1204 	bytep[i++] = request->u.ata.lba >> 32;
1205 	bytep[i++] = request->u.ata.lba >> 8;
1206 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1207 	bytep[i++] = request->u.ata.lba >> 40;
1208 	bytep[i++] = request->u.ata.lba >> 16;
1209 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1210 	bytep[i++] = ATA_D_LBA | ATA_DEV(request->unit);
1211     }
1212     else {
1213 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1214 	bytep[i++] = request->u.ata.feature;
1215 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
1216 	bytep[i++] = request->u.ata.count;
1217 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1218 	bytep[i++] = request->u.ata.lba;
1219 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1220 	bytep[i++] = request->u.ata.lba >> 8;
1221 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1222 	bytep[i++] = request->u.ata.lba >> 16;
1223 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1224 	bytep[i++] = ATA_D_LBA | ATA_D_IBM | ATA_DEV(request->unit) |
1225 		     ((request->u.ata.lba >> 24)&0xf);
1226     }
1227     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
1228     bytep[i++] = request->u.ata.command;
1229     return i;
1230 }
1231 
1232 static void
1233 ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
1234 {
1235     struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1236 
1237     mtx_lock(&hpktp->mtx);
1238     if (hpktp->busy) {
1239 	struct host_packet *hp =
1240 	    malloc(sizeof(struct host_packet), M_TEMP, M_NOWAIT | M_ZERO);
1241 	hp->addr = hpkt;
1242 	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
1243     }
1244     else {
1245 	hpktp->busy = 1;
1246 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
1247     }
1248     mtx_unlock(&hpktp->mtx);
1249 }
1250 
1251 static void
1252 ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
1253 {
1254     struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1255     struct host_packet *hp;
1256 
1257     mtx_lock(&hpktp->mtx);
1258     if ((hp = TAILQ_FIRST(&hpktp->queue))) {
1259 	TAILQ_REMOVE(&hpktp->queue, hp, chain);
1260 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
1261 	free(hp, M_TEMP);
1262     }
1263     else
1264 	hpktp->busy = 0;
1265     mtx_unlock(&hpktp->mtx);
1266 }
1267 
1268 ATA_DECLARE_DRIVER(ata_promise);
1269