xref: /freebsd/sys/dev/ata/chipsets/ata-promise.c (revision 4ed925457ab06e83238a5db33e89ccc94b99a713)
1 /*-
2  * Copyright (c) 1998 - 2008 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 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include "opt_ata.h"
31 #include <sys/param.h>
32 #include <sys/module.h>
33 #include <sys/systm.h>
34 #include <sys/kernel.h>
35 #include <sys/ata.h>
36 #include <sys/bus.h>
37 #include <sys/endian.h>
38 #include <sys/malloc.h>
39 #include <sys/lock.h>
40 #include <sys/mutex.h>
41 #include <sys/sema.h>
42 #include <sys/taskqueue.h>
43 #include <vm/uma.h>
44 #include <machine/stdarg.h>
45 #include <machine/resource.h>
46 #include <machine/bus.h>
47 #include <sys/rman.h>
48 #include <dev/pci/pcivar.h>
49 #include <dev/pci/pcireg.h>
50 #include <dev/ata/ata-all.h>
51 #include <dev/ata/ata-pci.h>
52 #include <ata_if.h>
53 
54 /* local prototypes */
55 static int ata_promise_chipinit(device_t dev);
56 static int ata_promise_ch_attach(device_t dev);
57 static int ata_promise_status(device_t dev);
58 static int ata_promise_dmastart(struct ata_request *request);
59 static int ata_promise_dmastop(struct ata_request *request);
60 static void ata_promise_dmareset(device_t dev);
61 static int ata_promise_setmode(device_t dev, int target, int mode);
62 static int ata_promise_tx2_ch_attach(device_t dev);
63 static int ata_promise_tx2_status(device_t dev);
64 static int ata_promise_mio_ch_attach(device_t dev);
65 static int ata_promise_mio_ch_detach(device_t dev);
66 static void ata_promise_mio_intr(void *data);
67 static int ata_promise_mio_status(device_t dev);
68 static int ata_promise_mio_command(struct ata_request *request);
69 static void ata_promise_mio_reset(device_t dev);
70 static int ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result);
71 static int ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t result);
72 static u_int32_t ata_promise_mio_softreset(device_t dev, int port);
73 static void ata_promise_mio_dmainit(device_t dev);
74 static void ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
75 static int ata_promise_mio_setmode(device_t dev, int target, int mode);
76 static int ata_promise_mio_getrev(device_t dev, int target);
77 static void ata_promise_sx4_intr(void *data);
78 static int ata_promise_sx4_command(struct ata_request *request);
79 static int ata_promise_apkt(u_int8_t *bytep, struct ata_request *request);
80 static void ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt);
81 static void ata_promise_next_hpkt(struct ata_pci_controller *ctlr);
82 
83 /* misc defines */
84 #define PR_OLD		0
85 #define PR_NEW		1
86 #define PR_TX		2
87 #define PR_MIO		3
88 #define PR_TX4		0x01
89 #define PR_SX4X		0x02
90 #define PR_SX6K		0x04
91 #define PR_PATA		0x08
92 #define PR_CMBO		0x10
93 #define PR_CMBO2	0x20
94 #define PR_SATA		0x40
95 #define PR_SATA2	0x80
96 
97 
98 /*
99  * Promise chipset support functions
100  */
101 #define ATA_PDC_APKT_OFFSET     0x00000010
102 #define ATA_PDC_HPKT_OFFSET     0x00000040
103 #define ATA_PDC_ASG_OFFSET      0x00000080
104 #define ATA_PDC_LSG_OFFSET      0x000000c0
105 #define ATA_PDC_HSG_OFFSET      0x00000100
106 #define ATA_PDC_CHN_OFFSET      0x00000400
107 #define ATA_PDC_BUF_BASE        0x00400000
108 #define ATA_PDC_BUF_OFFSET      0x00100000
109 #define ATA_PDC_MAX_HPKT        8
110 #define ATA_PDC_WRITE_REG       0x00
111 #define ATA_PDC_WRITE_CTL       0x0e
112 #define ATA_PDC_WRITE_END       0x08
113 #define ATA_PDC_WAIT_NBUSY      0x10
114 #define ATA_PDC_WAIT_READY      0x18
115 #define ATA_PDC_1B              0x20
116 #define ATA_PDC_2B              0x40
117 
118 struct host_packet {
119     u_int32_t                   addr;
120     TAILQ_ENTRY(host_packet)    chain;
121 };
122 
123 struct ata_promise_sx4 {
124     struct mtx                  mtx;
125     TAILQ_HEAD(, host_packet)   queue;
126     int                         busy;
127 };
128 
129 static int
130 ata_promise_probe(device_t dev)
131 {
132     struct ata_pci_controller *ctlr = device_get_softc(dev);
133     struct ata_chip_id *idx;
134     static struct ata_chip_id ids[] =
135     {{ ATA_PDC20246,  0, PR_OLD, 0x00,     ATA_UDMA2, "PDC20246" },
136      { ATA_PDC20262,  0, PR_NEW, 0x00,     ATA_UDMA4, "PDC20262" },
137      { ATA_PDC20263,  0, PR_NEW, 0x00,     ATA_UDMA4, "PDC20263" },
138      { ATA_PDC20265,  0, PR_NEW, 0x00,     ATA_UDMA5, "PDC20265" },
139      { ATA_PDC20267,  0, PR_NEW, 0x00,     ATA_UDMA5, "PDC20267" },
140      { ATA_PDC20268,  0, PR_TX,  PR_TX4,   ATA_UDMA5, "PDC20268" },
141      { ATA_PDC20269,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20269" },
142      { ATA_PDC20270,  0, PR_TX,  PR_TX4,   ATA_UDMA5, "PDC20270" },
143      { ATA_PDC20271,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20271" },
144      { ATA_PDC20275,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20275" },
145      { ATA_PDC20276,  0, PR_TX,  PR_SX6K,  ATA_UDMA6, "PDC20276" },
146      { ATA_PDC20277,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20277" },
147      { ATA_PDC20318,  0, PR_MIO, PR_SATA,  ATA_SA150, "PDC20318" },
148      { ATA_PDC20319,  0, PR_MIO, PR_SATA,  ATA_SA150, "PDC20319" },
149      { ATA_PDC20371,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20371" },
150      { ATA_PDC20375,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20375" },
151      { ATA_PDC20376,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20376" },
152      { ATA_PDC20377,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20377" },
153      { ATA_PDC20378,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20378" },
154      { ATA_PDC20379,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20379" },
155      { ATA_PDC20571,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20571" },
156      { ATA_PDC20575,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20575" },
157      { ATA_PDC20579,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20579" },
158      { ATA_PDC20771,  0, PR_MIO, PR_CMBO2, ATA_SA300, "PDC20771" },
159      { ATA_PDC40775,  0, PR_MIO, PR_CMBO2, ATA_SA300, "PDC40775" },
160      { ATA_PDC20617,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20617" },
161      { ATA_PDC20618,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20618" },
162      { ATA_PDC20619,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20619" },
163      { ATA_PDC20620,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20620" },
164      { ATA_PDC20621,  0, PR_MIO, PR_SX4X,  ATA_UDMA5, "PDC20621" },
165      { ATA_PDC20622,  0, PR_MIO, PR_SX4X,  ATA_SA150, "PDC20622" },
166      { ATA_PDC40518,  0, PR_MIO, PR_SATA2, ATA_SA150, "PDC40518" },
167      { ATA_PDC40519,  0, PR_MIO, PR_SATA2, ATA_SA150, "PDC40519" },
168      { ATA_PDC40718,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40718" },
169      { ATA_PDC40719,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40719" },
170      { ATA_PDC40779,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40779" },
171      { 0, 0, 0, 0, 0, 0}};
172     char buffer[64];
173     uintptr_t devid = 0;
174 
175     if (pci_get_vendor(dev) != ATA_PROMISE_ID)
176 	return ENXIO;
177 
178     if (!(idx = ata_match_chip(dev, ids)))
179 	return ENXIO;
180 
181     /* if we are on a SuperTrak SX6000 dont attach */
182     if ((idx->cfg2 & PR_SX6K) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
183 	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
184 		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
185 	devid == ATA_I960RM)
186 	return ENXIO;
187 
188     strcpy(buffer, "Promise ");
189     strcat(buffer, idx->text);
190 
191     /* if we are on a FastTrak TX4, adjust the interrupt resource */
192     if ((idx->cfg2 & PR_TX4) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
193 	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
194 		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
195 	((devid == ATA_DEC_21150) || (devid == ATA_DEC_21150_1))) {
196 	static long start = 0, end = 0;
197 
198 	if (pci_get_slot(dev) == 1) {
199 	    bus_get_resource(dev, SYS_RES_IRQ, 0, &start, &end);
200 	    strcat(buffer, " (channel 0+1)");
201 	}
202 	else if (pci_get_slot(dev) == 2 && start && end) {
203 	    bus_set_resource(dev, SYS_RES_IRQ, 0, start, end);
204 	    strcat(buffer, " (channel 2+3)");
205 	}
206 	else {
207 	    start = end = 0;
208 	}
209     }
210     sprintf(buffer, "%s %s controller", buffer, ata_mode2str(idx->max_dma));
211     device_set_desc_copy(dev, buffer);
212     ctlr->chip = idx;
213     ctlr->chipinit = ata_promise_chipinit;
214     return (BUS_PROBE_DEFAULT);
215 }
216 
217 static int
218 ata_promise_chipinit(device_t dev)
219 {
220     struct ata_pci_controller *ctlr = device_get_softc(dev);
221     int stat_reg;
222 
223     if (ata_setup_interrupt(dev, ata_generic_intr))
224 	return ENXIO;
225 
226     switch  (ctlr->chip->cfg1) {
227     case PR_NEW:
228 	/* setup clocks */
229 	ATA_OUTB(ctlr->r_res1, 0x11, ATA_INB(ctlr->r_res1, 0x11) | 0x0a);
230 	/* FALLTHROUGH */
231 
232     case PR_OLD:
233 	/* enable burst mode */
234 	ATA_OUTB(ctlr->r_res1, 0x1f, ATA_INB(ctlr->r_res1, 0x1f) | 0x01);
235 	ctlr->ch_attach = ata_promise_ch_attach;
236 	ctlr->ch_detach = ata_pci_ch_detach;
237 	ctlr->setmode = ata_promise_setmode;
238 	return 0;
239 
240     case PR_TX:
241 	ctlr->ch_attach = ata_promise_tx2_ch_attach;
242 	ctlr->ch_detach = ata_pci_ch_detach;
243 	ctlr->setmode = ata_promise_setmode;
244 	return 0;
245 
246     case PR_MIO:
247 	ctlr->r_type1 = SYS_RES_MEMORY;
248 	ctlr->r_rid1 = PCIR_BAR(4);
249 	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
250 						    &ctlr->r_rid1, RF_ACTIVE)))
251 	    goto failnfree;
252 
253 	ctlr->r_type2 = SYS_RES_MEMORY;
254 	ctlr->r_rid2 = PCIR_BAR(3);
255 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
256 						    &ctlr->r_rid2, RF_ACTIVE)))
257 	    goto failnfree;
258 
259 	if (ctlr->chip->cfg2 == PR_SX4X) {
260 	    struct ata_promise_sx4 *hpkt;
261 	    u_int32_t dimm = ATA_INL(ctlr->r_res2, 0x000c0080);
262 
263 	    if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
264 		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
265 			       ata_promise_sx4_intr, ctlr, &ctlr->handle)) {
266 		device_printf(dev, "unable to setup interrupt\n");
267 		goto failnfree;
268 	    }
269 
270 	    /* print info about cache memory */
271 	    device_printf(dev, "DIMM size %dMB @ 0x%08x%s\n",
272 			  (((dimm >> 16) & 0xff)-((dimm >> 24) & 0xff)+1) << 4,
273 			  ((dimm >> 24) & 0xff),
274 			  ATA_INL(ctlr->r_res2, 0x000c0088) & (1<<16) ?
275 			  " ECC enabled" : "" );
276 
277 	    /* adjust cache memory parameters */
278 	    ATA_OUTL(ctlr->r_res2, 0x000c000c,
279 		     (ATA_INL(ctlr->r_res2, 0x000c000c) & 0xffff0000));
280 
281 	    /* setup host packet controls */
282 	    hpkt = malloc(sizeof(struct ata_promise_sx4),
283 			  M_TEMP, M_NOWAIT | M_ZERO);
284 	    mtx_init(&hpkt->mtx, "ATA promise HPKT lock", NULL, MTX_DEF);
285 	    TAILQ_INIT(&hpkt->queue);
286 	    hpkt->busy = 0;
287 	    ctlr->chipset_data = hpkt;
288 	    ctlr->ch_attach = ata_promise_mio_ch_attach;
289 	    ctlr->ch_detach = ata_promise_mio_ch_detach;
290 	    ctlr->reset = ata_promise_mio_reset;
291 	    ctlr->setmode = ata_promise_setmode;
292 	    ctlr->channels = 4;
293 	    return 0;
294 	}
295 
296 	/* mio type controllers need an interrupt intercept */
297 	if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
298 	    bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
299 			       ata_promise_mio_intr, ctlr, &ctlr->handle)) {
300 		device_printf(dev, "unable to setup interrupt\n");
301 		goto failnfree;
302 	}
303 
304 	switch (ctlr->chip->cfg2) {
305 	case PR_PATA:
306 	    ctlr->channels = ((ATA_INL(ctlr->r_res2, 0x48) & 0x01) > 0) +
307 			     ((ATA_INL(ctlr->r_res2, 0x48) & 0x02) > 0) + 2;
308 	    goto sata150;
309 	case PR_CMBO:
310 	    ctlr->channels = 3;
311 	    goto sata150;
312 	case PR_SATA:
313 	    ctlr->channels = 4;
314 sata150:
315 	    stat_reg = 0x6c;
316 	    break;
317 
318 	case PR_CMBO2:
319 	    ctlr->channels = 3;
320 	    goto sataii;
321 	case PR_SATA2:
322 	default:
323 	    ctlr->channels = 4;
324 sataii:
325 	    stat_reg = 0x60;
326 	    break;
327 	}
328 
329 	/* prime fake interrupt register */
330 	ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
331 
332 	/* clear SATA status and unmask interrupts */
333 	ATA_OUTL(ctlr->r_res2, stat_reg, 0x000000ff);
334 
335 	/* enable "long burst length" on gen2 chips */
336 	if ((ctlr->chip->cfg2 == PR_SATA2) || (ctlr->chip->cfg2 == PR_CMBO2))
337 	    ATA_OUTL(ctlr->r_res2, 0x44, ATA_INL(ctlr->r_res2, 0x44) | 0x2000);
338 
339 	ctlr->ch_attach = ata_promise_mio_ch_attach;
340 	ctlr->ch_detach = ata_promise_mio_ch_detach;
341 	ctlr->reset = ata_promise_mio_reset;
342 	ctlr->setmode = ata_promise_mio_setmode;
343 	ctlr->getrev = ata_promise_mio_getrev;
344 
345 	return 0;
346     }
347 
348 failnfree:
349     if (ctlr->r_res2)
350 	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
351     if (ctlr->r_res1)
352 	bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
353     return ENXIO;
354 }
355 
356 static int
357 ata_promise_ch_attach(device_t dev)
358 {
359     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
360     struct ata_channel *ch = device_get_softc(dev);
361 
362     if (ata_pci_ch_attach(dev))
363 	return ENXIO;
364 
365     if (ctlr->chip->cfg1 == PR_NEW) {
366         ch->dma.start = ata_promise_dmastart;
367         ch->dma.stop = ata_promise_dmastop;
368         ch->dma.reset = ata_promise_dmareset;
369     }
370 
371     ch->hw.status = ata_promise_status;
372     ch->flags |= ATA_NO_ATAPI_DMA;
373     ch->flags |= ATA_CHECKS_CABLE;
374     return 0;
375 }
376 
377 static int
378 ata_promise_status(device_t dev)
379 {
380     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
381     struct ata_channel *ch = device_get_softc(dev);
382 
383     if (ATA_INL(ctlr->r_res1, 0x1c) & (ch->unit ? 0x00004000 : 0x00000400)) {
384 	return ata_pci_status(dev);
385     }
386     return 0;
387 }
388 
389 static int
390 ata_promise_dmastart(struct ata_request *request)
391 {
392     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
393     struct ata_channel *ch = device_get_softc(request->parent);
394 
395     if (request->flags & ATA_R_48BIT) {
396 	ATA_OUTB(ctlr->r_res1, 0x11,
397 		 ATA_INB(ctlr->r_res1, 0x11) | (ch->unit ? 0x08 : 0x02));
398 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20,
399 		 ((request->flags & ATA_R_READ) ? 0x05000000 : 0x06000000) |
400 		 (request->bytecount >> 1));
401     }
402     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
403 		 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
404     ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
405     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
406 		 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0) |
407 		 ATA_BMCMD_START_STOP);
408     ch->dma.flags |= ATA_DMA_ACTIVE;
409     return 0;
410 }
411 
412 static int
413 ata_promise_dmastop(struct ata_request *request)
414 {
415     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
416     struct ata_channel *ch = device_get_softc(request->parent);
417     int error;
418 
419     if (request->flags & ATA_R_48BIT) {
420 	ATA_OUTB(ctlr->r_res1, 0x11,
421 		 ATA_INB(ctlr->r_res1, 0x11) & ~(ch->unit ? 0x08 : 0x02));
422 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20, 0);
423     }
424     error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT);
425     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
426 		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
427     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
428     ch->dma.flags &= ~ATA_DMA_ACTIVE;
429     return error;
430 }
431 
432 static void
433 ata_promise_dmareset(device_t dev)
434 {
435     struct ata_channel *ch = device_get_softc(dev);
436 
437     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
438 		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
439     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
440     ch->flags &= ~ATA_DMA_ACTIVE;
441 }
442 
443 static int
444 ata_promise_setmode(device_t dev, int target, int mode)
445 {
446     device_t parent = device_get_parent(dev);
447     struct ata_pci_controller *ctlr = device_get_softc(parent);
448     struct ata_channel *ch = device_get_softc(dev);
449     int devno = (ch->unit << 1) + target;
450     u_int32_t timings[][2] = {
451     /*    PR_OLD      PR_NEW               mode */
452 	{ 0x004ff329, 0x004fff2f },     /* PIO 0 */
453 	{ 0x004fec25, 0x004ff82a },     /* PIO 1 */
454 	{ 0x004fe823, 0x004ff026 },     /* PIO 2 */
455 	{ 0x004fe622, 0x004fec24 },     /* PIO 3 */
456 	{ 0x004fe421, 0x004fe822 },     /* PIO 4 */
457 	{ 0x004567f3, 0x004acef6 },     /* MWDMA 0 */
458 	{ 0x004467f3, 0x0048cef6 },     /* MWDMA 1 */
459 	{ 0x004367f3, 0x0046cef6 },     /* MWDMA 2 */
460 	{ 0x004367f3, 0x0046cef6 },     /* UDMA 0 */
461 	{ 0x004247f3, 0x00448ef6 },     /* UDMA 1 */
462 	{ 0x004127f3, 0x00436ef6 },     /* UDMA 2 */
463 	{ 0,          0x00424ef6 },     /* UDMA 3 */
464 	{ 0,          0x004127f3 },     /* UDMA 4 */
465 	{ 0,          0x004127f3 }      /* UDMA 5 */
466     };
467 
468     mode = min(mode, ctlr->chip->max_dma);
469 
470     switch (ctlr->chip->cfg1) {
471     case PR_OLD:
472     case PR_NEW:
473 	if (mode > ATA_UDMA2 && (pci_read_config(parent, 0x50, 2) &
474 				 (ch->unit ? 1 << 11 : 1 << 10))) {
475 	    ata_print_cable(dev, "controller");
476 	    mode = ATA_UDMA2;
477 	}
478 	break;
479 
480     case PR_TX:
481 	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
482 	if (mode > ATA_UDMA2 &&
483 	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
484 	    ata_print_cable(dev, "controller");
485 	    mode = ATA_UDMA2;
486 	}
487 	break;
488 
489     case PR_MIO:
490 	if (mode > ATA_UDMA2 &&
491 	    (ATA_INL(ctlr->r_res2,
492 		     (ctlr->chip->cfg2 & PR_SX4X ? 0x000c0260 : 0x0260) +
493 		     (ch->unit << 7)) & 0x01000000)) {
494 	    ata_print_cable(dev, "controller");
495 	    mode = ATA_UDMA2;
496 	}
497 	break;
498     }
499 
500 	if (ctlr->chip->cfg1 < PR_TX)
501 	    pci_write_config(parent, 0x60 + (devno << 2),
502 			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
503 	return (mode);
504 }
505 
506 static int
507 ata_promise_tx2_ch_attach(device_t dev)
508 {
509     struct ata_channel *ch = device_get_softc(dev);
510 
511     if (ata_pci_ch_attach(dev))
512 	return ENXIO;
513 
514     ch->hw.status = ata_promise_tx2_status;
515     ch->flags |= ATA_CHECKS_CABLE;
516     return 0;
517 }
518 
519 static int
520 ata_promise_tx2_status(device_t dev)
521 {
522     struct ata_channel *ch = device_get_softc(dev);
523 
524     ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
525     if (ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x20) {
526 	return ata_pci_status(dev);
527     }
528     return 0;
529 }
530 
531 static int
532 ata_promise_mio_ch_attach(device_t dev)
533 {
534     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
535     struct ata_channel *ch = device_get_softc(dev);
536     int offset = (ctlr->chip->cfg2 & PR_SX4X) ? 0x000c0000 : 0;
537     int i;
538 
539     ata_promise_mio_dmainit(dev);
540 
541     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
542 	ch->r_io[i].res = ctlr->r_res2;
543 	ch->r_io[i].offset = offset + 0x0200 + (i << 2) + (ch->unit << 7);
544     }
545     ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
546     ch->r_io[ATA_CONTROL].offset = offset + 0x0238 + (ch->unit << 7);
547     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
548     ata_default_registers(dev);
549     if ((ctlr->chip->cfg2 & (PR_SATA | PR_SATA2)) ||
550 	((ctlr->chip->cfg2 & (PR_CMBO | PR_CMBO2)) && ch->unit < 2)) {
551 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
552 	ch->r_io[ATA_SSTATUS].offset = 0x400 + (ch->unit << 8);
553 	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
554 	ch->r_io[ATA_SERROR].offset = 0x404 + (ch->unit << 8);
555 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
556 	ch->r_io[ATA_SCONTROL].offset = 0x408 + (ch->unit << 8);
557 	ch->flags |= ATA_NO_SLAVE;
558 	ch->flags |= ATA_SATA;
559     }
560     ch->flags |= ATA_USE_16BIT;
561     ch->flags |= ATA_CHECKS_CABLE;
562 
563     ata_generic_hw(dev);
564     if (ctlr->chip->cfg2 & PR_SX4X) {
565 	ch->hw.command = ata_promise_sx4_command;
566     }
567     else {
568 	ch->hw.command = ata_promise_mio_command;
569 	ch->hw.status = ata_promise_mio_status;
570 	ch->hw.softreset = ata_promise_mio_softreset;
571 	ch->hw.pm_read = ata_promise_mio_pm_read;
572 	ch->hw.pm_write = ata_promise_mio_pm_write;
573      }
574     return 0;
575 }
576 
577 static int
578 ata_promise_mio_ch_detach(device_t dev)
579 {
580 
581     ata_dmafini(dev);
582     return (0);
583 }
584 
585 static void
586 ata_promise_mio_intr(void *data)
587 {
588     struct ata_pci_controller *ctlr = data;
589     struct ata_channel *ch;
590     u_int32_t vector;
591     int unit;
592 
593     /*
594      * since reading interrupt status register on early "mio" chips
595      * clears the status bits we cannot read it for each channel later on
596      * in the generic interrupt routine.
597      */
598     vector = ATA_INL(ctlr->r_res2, 0x040);
599     ATA_OUTL(ctlr->r_res2, 0x040, vector);
600     ctlr->chipset_data = (void *)(uintptr_t)vector;
601 
602     for (unit = 0; unit < ctlr->channels; unit++) {
603 	if ((ch = ctlr->interrupt[unit].argument))
604 	    ctlr->interrupt[unit].function(ch);
605     }
606 
607     ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
608 }
609 
610 static int
611 ata_promise_mio_status(device_t dev)
612 {
613     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
614     struct ata_channel *ch = device_get_softc(dev);
615     u_int32_t stat_reg, vector, status;
616 
617     switch (ctlr->chip->cfg2) {
618     case PR_PATA:
619     case PR_CMBO:
620     case PR_SATA:
621 	stat_reg = 0x6c;
622 	break;
623     case PR_CMBO2:
624     case PR_SATA2:
625     default:
626 	stat_reg = 0x60;
627 	break;
628     }
629 
630     /* read and acknowledge interrupt */
631     vector = (uint32_t)(uintptr_t)ctlr->chipset_data;
632 
633     /* read and clear interface status */
634     status = ATA_INL(ctlr->r_res2, stat_reg);
635     ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
636 
637     /* check for and handle disconnect events */
638     if (status & (0x00000001 << ch->unit)) {
639 	if (bootverbose)
640 	    device_printf(dev, "DISCONNECT requested\n");
641 	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
642     }
643 
644     /* check for and handle connect events */
645     if (status & (0x00000010 << ch->unit)) {
646 	if (bootverbose)
647 	    device_printf(dev, "CONNECT requested\n");
648 	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
649     }
650 
651     /* do we have any device action ? */
652     return (vector & (1 << (ch->unit + 1)));
653 }
654 
655 static int
656 ata_promise_mio_command(struct ata_request *request)
657 {
658     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
659     struct ata_channel *ch = device_get_softc(request->parent);
660 
661     u_int32_t *wordp = (u_int32_t *)ch->dma.work;
662 
663     ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
664 
665     if ((ctlr->chip->cfg2 == PR_SATA2) ||
666         ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
667 	/* set portmultiplier port */
668 	ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), request->unit & 0x0f);
669     }
670 
671     /* XXX SOS add ATAPI commands support later */
672     switch (request->u.ata.command) {
673     default:
674 	return ata_generic_command(request);
675 
676     case ATA_READ_DMA:
677     case ATA_READ_DMA48:
678 	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
679 	break;
680 
681     case ATA_WRITE_DMA:
682     case ATA_WRITE_DMA48:
683 	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
684 	break;
685     }
686     wordp[1] = htole32(request->dma->sg_bus);
687     wordp[2] = 0;
688     ata_promise_apkt((u_int8_t*)wordp, request);
689 
690     ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma.work_bus);
691     return 0;
692 }
693 
694 static void
695 ata_promise_mio_reset(device_t dev)
696 {
697     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
698     struct ata_channel *ch = device_get_softc(dev);
699     struct ata_promise_sx4 *hpktp;
700 
701     switch (ctlr->chip->cfg2) {
702     case PR_SX4X:
703 
704 	/* softreset channel ATA module */
705 	hpktp = ctlr->chipset_data;
706 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
707 	ata_udelay(1000);
708 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
709 		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
710 		  ~0x00003f9f) | (ch->unit + 1));
711 
712 	/* softreset HOST module */ /* XXX SOS what about other outstandings */
713 	mtx_lock(&hpktp->mtx);
714 	ATA_OUTL(ctlr->r_res2, 0xc012c,
715 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
716 	DELAY(10);
717 	ATA_OUTL(ctlr->r_res2, 0xc012c,
718 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
719 	hpktp->busy = 0;
720 	mtx_unlock(&hpktp->mtx);
721 	ata_generic_reset(dev);
722 	break;
723 
724     case PR_PATA:
725     case PR_CMBO:
726     case PR_SATA:
727 	if ((ctlr->chip->cfg2 == PR_SATA) ||
728 	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
729 
730 	    /* mask plug/unplug intr */
731 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
732 	}
733 
734 	/* softreset channels ATA module */
735 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
736 	ata_udelay(10000);
737 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
738 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
739 		  ~0x00003f9f) | (ch->unit + 1));
740 
741 	if ((ctlr->chip->cfg2 == PR_SATA) ||
742 	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
743 
744 	    if (ata_sata_phy_reset(dev, -1, 1))
745 		ata_generic_reset(dev);
746 
747 	    /* reset and enable plug/unplug intr */
748 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
749 	}
750 	else
751 	    ata_generic_reset(dev);
752 	break;
753 
754     case PR_CMBO2:
755     case PR_SATA2:
756 	if ((ctlr->chip->cfg2 == PR_SATA2) ||
757 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
758 	    /* set portmultiplier port */
759 	    //ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
760 
761 	    /* mask plug/unplug intr */
762 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
763 	}
764 
765 	/* softreset channels ATA module */
766 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
767 	ata_udelay(10000);
768 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
769 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
770 		  ~0x00003f9f) | (ch->unit + 1));
771 
772 	if ((ctlr->chip->cfg2 == PR_SATA2) ||
773 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
774 
775 	    /* set PHY mode to "improved" */
776 	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
777 		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
778 		     ~0x00000003) | 0x00000001);
779 
780 	    if (ata_sata_phy_reset(dev, -1, 1)) {
781 		u_int32_t signature = ch->hw.softreset(dev, ATA_PM);
782 
783 		if (1 | bootverbose)
784         	    device_printf(dev, "SIGNATURE: %08x\n", signature);
785 
786 		switch (signature >> 16) {
787 		case 0x0000:
788 		    ch->devices = ATA_ATA_MASTER;
789 		    break;
790 		case 0x9669:
791 		    ch->devices = ATA_PORTMULTIPLIER;
792 		    ata_pm_identify(dev);
793 		    break;
794 		case 0xeb14:
795 		    ch->devices = ATA_ATAPI_MASTER;
796 		    break;
797 		default: /* SOS XXX */
798 		    if (bootverbose)
799 			device_printf(dev,
800 				      "No signature, assuming disk device\n");
801 		    ch->devices = ATA_ATA_MASTER;
802 		}
803 		if (bootverbose)
804 		    device_printf(dev, "promise_mio_reset devices=%08x\n",
805 		    		  ch->devices);
806 
807 	    } else
808 		ch->devices = 0;
809 
810 	    /* reset and enable plug/unplug intr */
811 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
812 
813 	    ///* set portmultiplier port */
814 	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
815 	}
816 	else
817 	    ata_generic_reset(dev);
818 	break;
819 
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     /* set portmultiplier port */
831     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
832 
833     ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
834     ATA_IDX_OUTB(ch, ATA_DRIVE, port);
835 
836     ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_READ_PM);
837 
838     while (timeout < 1000000) {
839 	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
840 	if (!(status & ATA_S_BUSY))
841 	    break;
842 	timeout += 1000;
843 	DELAY(1000);
844     }
845     if (timeout >= 1000000)
846 	return ATA_E_ABORT;
847 
848     *result = ATA_IDX_INB(ch, ATA_COUNT) |
849 	      (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
850 	      (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
851 	      (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
852     return 0;
853 }
854 
855 static int
856 ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t value)
857 {
858     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
859     struct ata_channel *ch = device_get_softc(dev);
860     int timeout = 0;
861 
862     /* set portmultiplier port */
863     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
864 
865     ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
866     ATA_IDX_OUTB(ch, ATA_DRIVE, port);
867     ATA_IDX_OUTB(ch, ATA_COUNT, value & 0xff);
868     ATA_IDX_OUTB(ch, ATA_SECTOR, (value >> 8) & 0xff);
869     ATA_IDX_OUTB(ch, ATA_CYL_LSB, (value >> 16) & 0xff);
870     ATA_IDX_OUTB(ch, ATA_CYL_MSB, (value >> 24) & 0xff);
871 
872     ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_WRITE_PM);
873 
874     while (timeout < 1000000) {
875 	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
876 	if (!(status & ATA_S_BUSY))
877 	    break;
878 	timeout += 1000;
879 	DELAY(1000);
880     }
881     if (timeout >= 1000000)
882 	return ATA_E_ABORT;
883 
884     return ATA_IDX_INB(ch, ATA_ERROR);
885 }
886 
887 /* must be called with ATA channel locked and state_mtx held */
888 static u_int32_t
889 ata_promise_mio_softreset(device_t dev, int port)
890 {
891     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
892     struct ata_channel *ch = device_get_softc(dev);
893     int timeout;
894 
895     /* set portmultiplier port */
896     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), port & 0x0f);
897 
898     /* softreset device on this channel */
899     ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | ATA_DEV(ATA_MASTER));
900     DELAY(10);
901     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS | ATA_A_RESET);
902     ata_udelay(10000);
903     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS);
904     ata_udelay(150000);
905     ATA_IDX_INB(ch, ATA_ERROR);
906 
907     /* wait for BUSY to go inactive */
908     for (timeout = 0; timeout < 100; timeout++) {
909 	u_int8_t err, stat;
910 
911 	err = ATA_IDX_INB(ch, ATA_ERROR);
912 	stat = ATA_IDX_INB(ch, ATA_STATUS);
913 
914 	//if (stat == err && timeout > (stat & ATA_S_BUSY ? 100 : 10))
915 	    //break;
916 
917 	if (!(stat & ATA_S_BUSY)) {
918 	    //if ((err & 0x7f) == ATA_E_ILI) {
919 		return ATA_IDX_INB(ch, ATA_COUNT) |
920 		       (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
921 		       (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
922 		       (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
923 	    //}
924 	    //else if (stat & 0x0f) {
925 		//stat |= ATA_S_BUSY;
926 	    //}
927 	}
928 
929 	if (!(stat & ATA_S_BUSY) || (stat == 0xff && timeout > 10))
930 	    break;
931 	ata_udelay(100000);
932     }
933     return -1;
934 }
935 
936 static void
937 ata_promise_mio_dmainit(device_t dev)
938 {
939     struct ata_channel *ch = device_get_softc(dev);
940 
941     ata_dmainit(dev);
942     /* note start and stop are not used here */
943     ch->dma.setprd = ata_promise_mio_setprd;
944     ch->dma.max_iosize = 65536;
945 }
946 
947 
948 #define MAXLASTSGSIZE (32 * sizeof(u_int32_t))
949 static void
950 ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
951 {
952     struct ata_dmasetprd_args *args = xsc;
953     struct ata_dma_prdentry *prd = args->dmatab;
954     int i;
955 
956     if ((args->error = error))
957 	return;
958 
959     for (i = 0; i < nsegs; i++) {
960 	prd[i].addr = htole32(segs[i].ds_addr);
961 	prd[i].count = htole32(segs[i].ds_len);
962     }
963     if (segs[i - 1].ds_len > MAXLASTSGSIZE) {
964 	//printf("split last SG element of %u\n", segs[i - 1].ds_len);
965 	prd[i - 1].count = htole32(segs[i - 1].ds_len - MAXLASTSGSIZE);
966 	prd[i].count = htole32(MAXLASTSGSIZE);
967 	prd[i].addr = htole32(segs[i - 1].ds_addr +
968 			      (segs[i - 1].ds_len - MAXLASTSGSIZE));
969 	nsegs++;
970 	i++;
971     }
972     prd[i - 1].count |= htole32(ATA_DMA_EOT);
973     KASSERT(nsegs <= ATA_DMA_ENTRIES, ("too many DMA segment entries\n"));
974     args->nsegs = nsegs;
975 }
976 
977 static int
978 ata_promise_mio_setmode(device_t dev, int target, int mode)
979 {
980         struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
981         struct ata_channel *ch = device_get_softc(dev);
982 
983         if ( (ctlr->chip->cfg2 == PR_SATA) ||
984     	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
985 	     (ctlr->chip->cfg2 == PR_SATA2) ||
986 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
987 		mode = ata_sata_setmode(dev, target, mode);
988 	else
989 		mode = ata_promise_setmode(dev, target, mode);
990 	return (mode);
991 }
992 
993 static int
994 ata_promise_mio_getrev(device_t dev, int target)
995 {
996         struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
997         struct ata_channel *ch = device_get_softc(dev);
998 
999         if ( (ctlr->chip->cfg2 == PR_SATA) ||
1000     	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1001 	     (ctlr->chip->cfg2 == PR_SATA2) ||
1002 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1003 		return (ata_sata_getrev(dev, target));
1004 	else
1005 		return (0);
1006 }
1007 
1008 static void
1009 ata_promise_sx4_intr(void *data)
1010 {
1011     struct ata_pci_controller *ctlr = data;
1012     struct ata_channel *ch;
1013     u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
1014     int unit;
1015 
1016     for (unit = 0; unit < ctlr->channels; unit++) {
1017 	if (vector & (1 << (unit + 1)))
1018 	    if ((ch = ctlr->interrupt[unit].argument))
1019 		ctlr->interrupt[unit].function(ch);
1020 	if (vector & (1 << (unit + 5)))
1021 	    if ((ch = ctlr->interrupt[unit].argument))
1022 		ata_promise_queue_hpkt(ctlr,
1023 				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1024 					       ATA_PDC_HPKT_OFFSET));
1025 	if (vector & (1 << (unit + 9))) {
1026 	    ata_promise_next_hpkt(ctlr);
1027 	    if ((ch = ctlr->interrupt[unit].argument))
1028 		ctlr->interrupt[unit].function(ch);
1029 	}
1030 	if (vector & (1 << (unit + 13))) {
1031 	    ata_promise_next_hpkt(ctlr);
1032 	    if ((ch = ctlr->interrupt[unit].argument))
1033 		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1034 			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1035 			 ATA_PDC_APKT_OFFSET));
1036 	}
1037     }
1038 }
1039 
1040 static int
1041 ata_promise_sx4_command(struct ata_request *request)
1042 {
1043     device_t gparent = device_get_parent(request->parent);
1044     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1045     struct ata_channel *ch = device_get_softc(request->parent);
1046     struct ata_dma_prdentry *prd;
1047     caddr_t window = rman_get_virtual(ctlr->r_res1);
1048     u_int32_t *wordp;
1049     int i, idx, length = 0;
1050 
1051     /* XXX SOS add ATAPI commands support later */
1052     switch (request->u.ata.command) {
1053 
1054     default:
1055 	return -1;
1056 
1057     case ATA_ATA_IDENTIFY:
1058     case ATA_READ:
1059     case ATA_READ48:
1060     case ATA_READ_MUL:
1061     case ATA_READ_MUL48:
1062     case ATA_WRITE:
1063     case ATA_WRITE48:
1064     case ATA_WRITE_MUL:
1065     case ATA_WRITE_MUL48:
1066 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1067 	return ata_generic_command(request);
1068 
1069     case ATA_SETFEATURES:
1070     case ATA_FLUSHCACHE:
1071     case ATA_FLUSHCACHE48:
1072     case ATA_SLEEP:
1073     case ATA_SET_MULTI:
1074 	wordp = (u_int32_t *)
1075 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1076 	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
1077 	wordp[1] = 0;
1078 	wordp[2] = 0;
1079 	ata_promise_apkt((u_int8_t *)wordp, request);
1080 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1081 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1082 	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1083 		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
1084 	return 0;
1085 
1086     case ATA_READ_DMA:
1087     case ATA_READ_DMA48:
1088     case ATA_WRITE_DMA:
1089     case ATA_WRITE_DMA48:
1090 	prd = request->dma->sg;
1091 	wordp = (u_int32_t *)
1092 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
1093 	i = idx = 0;
1094 	do {
1095 	    wordp[idx++] = prd[i].addr;
1096 	    wordp[idx++] = prd[i].count;
1097 	    length += (prd[i].count & ~ATA_DMA_EOT);
1098 	} while (!(prd[i++].count & ATA_DMA_EOT));
1099 
1100 	wordp = (u_int32_t *)
1101 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
1102 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1103 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1104 
1105 	wordp = (u_int32_t *)
1106 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
1107 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1108 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1109 
1110 	wordp = (u_int32_t *)
1111 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
1112 	if (request->flags & ATA_R_READ)
1113 	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
1114 	if (request->flags & ATA_R_WRITE)
1115 	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
1116 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
1117 	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
1118 	wordp[3] = 0;
1119 
1120 	wordp = (u_int32_t *)
1121 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1122 	if (request->flags & ATA_R_READ)
1123 	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
1124 	if (request->flags & ATA_R_WRITE)
1125 	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
1126 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
1127 	wordp[2] = 0;
1128 	ata_promise_apkt((u_int8_t *)wordp, request);
1129 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1130 
1131 	if (request->flags & ATA_R_READ) {
1132 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
1133 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
1134 	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1135 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
1136 	}
1137 	if (request->flags & ATA_R_WRITE) {
1138 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
1139 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
1140 	    ata_promise_queue_hpkt(ctlr,
1141 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
1142 	}
1143 	return 0;
1144     }
1145 }
1146 
1147 static int
1148 ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
1149 {
1150     int i = 12;
1151 
1152     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
1153     bytep[i++] = ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit);
1154     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
1155     bytep[i++] = ATA_A_4BIT;
1156 
1157     if (request->flags & ATA_R_48BIT) {
1158 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1159 	bytep[i++] = request->u.ata.feature >> 8;
1160 	bytep[i++] = request->u.ata.feature;
1161 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
1162 	bytep[i++] = request->u.ata.count >> 8;
1163 	bytep[i++] = request->u.ata.count;
1164 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1165 	bytep[i++] = request->u.ata.lba >> 24;
1166 	bytep[i++] = request->u.ata.lba;
1167 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1168 	bytep[i++] = request->u.ata.lba >> 32;
1169 	bytep[i++] = request->u.ata.lba >> 8;
1170 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1171 	bytep[i++] = request->u.ata.lba >> 40;
1172 	bytep[i++] = request->u.ata.lba >> 16;
1173 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1174 	bytep[i++] = ATA_D_LBA | ATA_DEV(request->unit);
1175     }
1176     else {
1177 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1178 	bytep[i++] = request->u.ata.feature;
1179 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
1180 	bytep[i++] = request->u.ata.count;
1181 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1182 	bytep[i++] = request->u.ata.lba;
1183 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1184 	bytep[i++] = request->u.ata.lba >> 8;
1185 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1186 	bytep[i++] = request->u.ata.lba >> 16;
1187 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1188 	bytep[i++] = ATA_D_LBA | ATA_D_IBM | ATA_DEV(request->unit) |
1189 		     ((request->u.ata.lba >> 24)&0xf);
1190     }
1191     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
1192     bytep[i++] = request->u.ata.command;
1193     return i;
1194 }
1195 
1196 static void
1197 ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
1198 {
1199     struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1200 
1201     mtx_lock(&hpktp->mtx);
1202     if (hpktp->busy) {
1203 	struct host_packet *hp =
1204 	    malloc(sizeof(struct host_packet), M_TEMP, M_NOWAIT | M_ZERO);
1205 	hp->addr = hpkt;
1206 	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
1207     }
1208     else {
1209 	hpktp->busy = 1;
1210 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
1211     }
1212     mtx_unlock(&hpktp->mtx);
1213 }
1214 
1215 static void
1216 ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
1217 {
1218     struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1219     struct host_packet *hp;
1220 
1221     mtx_lock(&hpktp->mtx);
1222     if ((hp = TAILQ_FIRST(&hpktp->queue))) {
1223 	TAILQ_REMOVE(&hpktp->queue, hp, chain);
1224 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
1225 	free(hp, M_TEMP);
1226     }
1227     else
1228 	hpktp->busy = 0;
1229     mtx_unlock(&hpktp->mtx);
1230 }
1231 
1232 ATA_DECLARE_DRIVER(ata_promise);
1233