xref: /freebsd/sys/dev/ata/chipsets/ata-promise.c (revision f6a3b357e9be4c6423c85eff9a847163a0d307c8)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 
32 #include <sys/param.h>
33 #include <sys/module.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/ata.h>
37 #include <sys/bus.h>
38 #include <sys/endian.h>
39 #include <sys/malloc.h>
40 #include <sys/lock.h>
41 #include <sys/mutex.h>
42 #include <sys/sema.h>
43 #include <sys/taskqueue.h>
44 #include <vm/uma.h>
45 #include <machine/stdarg.h>
46 #include <machine/resource.h>
47 #include <machine/bus.h>
48 #include <sys/rman.h>
49 #include <dev/pci/pcivar.h>
50 #include <dev/pci/pcireg.h>
51 #include <dev/ata/ata-all.h>
52 #include <dev/ata/ata-pci.h>
53 #include <ata_if.h>
54 
55 /* local prototypes */
56 static int ata_promise_chipinit(device_t dev);
57 static int ata_promise_ch_attach(device_t dev);
58 static int ata_promise_status(device_t dev);
59 static int ata_promise_dmastart(struct ata_request *request);
60 static int ata_promise_dmastop(struct ata_request *request);
61 static void ata_promise_dmareset(device_t dev);
62 static int ata_promise_setmode(device_t dev, int target, int mode);
63 static int ata_promise_tx2_ch_attach(device_t dev);
64 static int ata_promise_tx2_status(device_t dev);
65 static int ata_promise_mio_ch_attach(device_t dev);
66 static int ata_promise_mio_ch_detach(device_t dev);
67 static void ata_promise_mio_intr(void *data);
68 static int ata_promise_mio_status(device_t dev);
69 static int ata_promise_mio_command(struct ata_request *request);
70 static void ata_promise_mio_reset(device_t dev);
71 static int ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result);
72 static int ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t result);
73 static u_int32_t ata_promise_mio_softreset(device_t dev, int port);
74 static void ata_promise_mio_dmainit(device_t dev);
75 static void ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
76 static int ata_promise_mio_setmode(device_t dev, int target, int mode);
77 static int ata_promise_mio_getrev(device_t dev, int target);
78 static void ata_promise_sx4_intr(void *data);
79 static int ata_promise_sx4_command(struct ata_request *request);
80 static int ata_promise_apkt(u_int8_t *bytep, struct ata_request *request);
81 static void ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt);
82 static void ata_promise_next_hpkt(struct ata_pci_controller *ctlr);
83 
84 /* misc defines */
85 #define PR_OLD		0
86 #define PR_NEW		1
87 #define PR_TX		2
88 #define PR_MIO		3
89 #define PR_TX4		0x01
90 #define PR_SX4X		0x02
91 #define PR_SX6K		0x04
92 #define PR_PATA		0x08
93 #define PR_CMBO		0x10
94 #define PR_CMBO2	0x20
95 #define PR_SATA		0x40
96 #define PR_SATA2	0x80
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     const struct ata_chip_id *idx;
134     static const 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 rman_res_t 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_LOW_PRIORITY);
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 #ifdef __sparc64__
254 	if (ctlr->chip->cfg2 == PR_SX4X &&
255 	    !bus_space_map(rman_get_bustag(ctlr->r_res1),
256 	    rman_get_bushandle(ctlr->r_res1), rman_get_size(ctlr->r_res1),
257 	    BUS_SPACE_MAP_LINEAR, NULL))
258 		goto failnfree;
259 #endif
260 
261 	ctlr->r_type2 = SYS_RES_MEMORY;
262 	ctlr->r_rid2 = PCIR_BAR(3);
263 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
264 						    &ctlr->r_rid2, RF_ACTIVE)))
265 	    goto failnfree;
266 
267 	if (ctlr->chip->cfg2 == PR_SX4X) {
268 	    struct ata_promise_sx4 *hpkt;
269 	    u_int32_t dimm = ATA_INL(ctlr->r_res2, 0x000c0080);
270 
271 	    if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
272 		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
273 			       ata_promise_sx4_intr, ctlr, &ctlr->handle)) {
274 		device_printf(dev, "unable to setup interrupt\n");
275 		goto failnfree;
276 	    }
277 
278 	    /* print info about cache memory */
279 	    device_printf(dev, "DIMM size %dMB @ 0x%08x%s\n",
280 			  (((dimm >> 16) & 0xff)-((dimm >> 24) & 0xff)+1) << 4,
281 			  ((dimm >> 24) & 0xff),
282 			  ATA_INL(ctlr->r_res2, 0x000c0088) & (1<<16) ?
283 			  " ECC enabled" : "" );
284 
285 	    /* adjust cache memory parameters */
286 	    ATA_OUTL(ctlr->r_res2, 0x000c000c,
287 		     (ATA_INL(ctlr->r_res2, 0x000c000c) & 0xffff0000));
288 
289 	    /* setup host packet controls */
290 	    hpkt = malloc(sizeof(struct ata_promise_sx4),
291 			  M_ATAPCI, M_NOWAIT | M_ZERO);
292 	    if (hpkt == NULL) {
293 		device_printf(dev, "Cannot allocate HPKT\n");
294 		goto failnfree;
295 	    }
296 	    mtx_init(&hpkt->mtx, "ATA promise HPKT lock", NULL, MTX_DEF);
297 	    TAILQ_INIT(&hpkt->queue);
298 	    hpkt->busy = 0;
299 	    ctlr->chipset_data = hpkt;
300 	    ctlr->ch_attach = ata_promise_mio_ch_attach;
301 	    ctlr->ch_detach = ata_promise_mio_ch_detach;
302 	    ctlr->reset = ata_promise_mio_reset;
303 	    ctlr->setmode = ata_promise_setmode;
304 	    ctlr->channels = 4;
305 	    return 0;
306 	}
307 
308 	/* mio type controllers need an interrupt intercept */
309 	if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
310 	    bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
311 			       ata_promise_mio_intr, ctlr, &ctlr->handle)) {
312 		device_printf(dev, "unable to setup interrupt\n");
313 		goto failnfree;
314 	}
315 
316 	switch (ctlr->chip->cfg2) {
317 	case PR_PATA:
318 	    ctlr->channels = ((ATA_INL(ctlr->r_res2, 0x48) & 0x01) > 0) +
319 			     ((ATA_INL(ctlr->r_res2, 0x48) & 0x02) > 0) + 2;
320 	    goto sata150;
321 	case PR_CMBO:
322 	    ctlr->channels = 3;
323 	    goto sata150;
324 	case PR_SATA:
325 	    ctlr->channels = 4;
326 sata150:
327 	    stat_reg = 0x6c;
328 	    break;
329 
330 	case PR_CMBO2:
331 	    ctlr->channels = 3;
332 	    goto sataii;
333 	case PR_SATA2:
334 	default:
335 	    ctlr->channels = 4;
336 sataii:
337 	    stat_reg = 0x60;
338 	    break;
339 	}
340 
341 	/* prime fake interrupt register */
342 	ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
343 
344 	/* clear SATA status and unmask interrupts */
345 	ATA_OUTL(ctlr->r_res2, stat_reg, 0x000000ff);
346 
347 	/* enable "long burst length" on gen2 chips */
348 	if ((ctlr->chip->cfg2 == PR_SATA2) || (ctlr->chip->cfg2 == PR_CMBO2))
349 	    ATA_OUTL(ctlr->r_res2, 0x44, ATA_INL(ctlr->r_res2, 0x44) | 0x2000);
350 
351 	ctlr->ch_attach = ata_promise_mio_ch_attach;
352 	ctlr->ch_detach = ata_promise_mio_ch_detach;
353 	ctlr->reset = ata_promise_mio_reset;
354 	ctlr->setmode = ata_promise_mio_setmode;
355 	ctlr->getrev = ata_promise_mio_getrev;
356 
357 	return 0;
358     }
359 
360 failnfree:
361     if (ctlr->r_res2)
362 	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
363     if (ctlr->r_res1)
364 	bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
365     return ENXIO;
366 }
367 
368 static int
369 ata_promise_ch_attach(device_t dev)
370 {
371     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
372     struct ata_channel *ch = device_get_softc(dev);
373 
374     if (ata_pci_ch_attach(dev))
375 	return ENXIO;
376 
377     if (ctlr->chip->cfg1 == PR_NEW) {
378         ch->dma.start = ata_promise_dmastart;
379         ch->dma.stop = ata_promise_dmastop;
380         ch->dma.reset = ata_promise_dmareset;
381     }
382 
383     ch->hw.status = ata_promise_status;
384     ch->flags |= ATA_NO_ATAPI_DMA;
385     ch->flags |= ATA_CHECKS_CABLE;
386     return 0;
387 }
388 
389 static int
390 ata_promise_status(device_t dev)
391 {
392     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
393     struct ata_channel *ch = device_get_softc(dev);
394 
395     if (ATA_INL(ctlr->r_res1, 0x1c) & (ch->unit ? 0x00004000 : 0x00000400)) {
396 	return ata_pci_status(dev);
397     }
398     return 0;
399 }
400 
401 static int
402 ata_promise_dmastart(struct ata_request *request)
403 {
404     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
405     struct ata_channel *ch = device_get_softc(request->parent);
406 
407     if (request->flags & ATA_R_48BIT) {
408 	ATA_OUTB(ctlr->r_res1, 0x11,
409 		 ATA_INB(ctlr->r_res1, 0x11) | (ch->unit ? 0x08 : 0x02));
410 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20,
411 		 ((request->flags & ATA_R_READ) ? 0x05000000 : 0x06000000) |
412 		 (request->bytecount >> 1));
413     }
414     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
415 		 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
416     ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
417     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
418 		 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0) |
419 		 ATA_BMCMD_START_STOP);
420     ch->dma.flags |= ATA_DMA_ACTIVE;
421     return 0;
422 }
423 
424 static int
425 ata_promise_dmastop(struct ata_request *request)
426 {
427     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
428     struct ata_channel *ch = device_get_softc(request->parent);
429     int error;
430 
431     if (request->flags & ATA_R_48BIT) {
432 	ATA_OUTB(ctlr->r_res1, 0x11,
433 		 ATA_INB(ctlr->r_res1, 0x11) & ~(ch->unit ? 0x08 : 0x02));
434 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20, 0);
435     }
436     error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT);
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->dma.flags &= ~ATA_DMA_ACTIVE;
441     return error;
442 }
443 
444 static void
445 ata_promise_dmareset(device_t dev)
446 {
447     struct ata_channel *ch = device_get_softc(dev);
448 
449     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
450 		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
451     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
452     ch->flags &= ~ATA_DMA_ACTIVE;
453 }
454 
455 static int
456 ata_promise_setmode(device_t dev, int target, int mode)
457 {
458     device_t parent = device_get_parent(dev);
459     struct ata_pci_controller *ctlr = device_get_softc(parent);
460     struct ata_channel *ch = device_get_softc(dev);
461     int devno = (ch->unit << 1) + target;
462     static const uint32_t timings[][2] = {
463     /*    PR_OLD      PR_NEW               mode */
464 	{ 0x004ff329, 0x004fff2f },     /* PIO 0 */
465 	{ 0x004fec25, 0x004ff82a },     /* PIO 1 */
466 	{ 0x004fe823, 0x004ff026 },     /* PIO 2 */
467 	{ 0x004fe622, 0x004fec24 },     /* PIO 3 */
468 	{ 0x004fe421, 0x004fe822 },     /* PIO 4 */
469 	{ 0x004567f3, 0x004acef6 },     /* MWDMA 0 */
470 	{ 0x004467f3, 0x0048cef6 },     /* MWDMA 1 */
471 	{ 0x004367f3, 0x0046cef6 },     /* MWDMA 2 */
472 	{ 0x004367f3, 0x0046cef6 },     /* UDMA 0 */
473 	{ 0x004247f3, 0x00448ef6 },     /* UDMA 1 */
474 	{ 0x004127f3, 0x00436ef6 },     /* UDMA 2 */
475 	{ 0,          0x00424ef6 },     /* UDMA 3 */
476 	{ 0,          0x004127f3 },     /* UDMA 4 */
477 	{ 0,          0x004127f3 }      /* UDMA 5 */
478     };
479 
480     mode = min(mode, ctlr->chip->max_dma);
481 
482     switch (ctlr->chip->cfg1) {
483     case PR_OLD:
484     case PR_NEW:
485 	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
486 	    (pci_read_config(parent, 0x50, 2) &
487 				 (ch->unit ? 1 << 11 : 1 << 10))) {
488 	    ata_print_cable(dev, "controller");
489 	    mode = ATA_UDMA2;
490 	}
491 	break;
492 
493     case PR_TX:
494 	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
495 	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
496 	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
497 	    ata_print_cable(dev, "controller");
498 	    mode = ATA_UDMA2;
499 	}
500 	break;
501 
502     case PR_MIO:
503 	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
504 	    (ATA_INL(ctlr->r_res2,
505 		     (ctlr->chip->cfg2 & PR_SX4X ? 0x000c0260 : 0x0260) +
506 		     (ch->unit << 7)) & 0x01000000)) {
507 	    ata_print_cable(dev, "controller");
508 	    mode = ATA_UDMA2;
509 	}
510 	break;
511     }
512 
513 	if (ctlr->chip->cfg1 < PR_TX)
514 	    pci_write_config(parent, 0x60 + (devno << 2),
515 			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
516 	return (mode);
517 }
518 
519 static int
520 ata_promise_tx2_ch_attach(device_t dev)
521 {
522     struct ata_channel *ch = device_get_softc(dev);
523 
524     if (ata_pci_ch_attach(dev))
525 	return ENXIO;
526 
527     ch->hw.status = ata_promise_tx2_status;
528     ch->flags |= ATA_CHECKS_CABLE;
529     return 0;
530 }
531 
532 static int
533 ata_promise_tx2_status(device_t dev)
534 {
535     struct ata_channel *ch = device_get_softc(dev);
536 
537     ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
538     if (ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x20) {
539 	return ata_pci_status(dev);
540     }
541     return 0;
542 }
543 
544 static int
545 ata_promise_mio_ch_attach(device_t dev)
546 {
547     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
548     struct ata_channel *ch = device_get_softc(dev);
549     int offset = (ctlr->chip->cfg2 & PR_SX4X) ? 0x000c0000 : 0;
550     int i;
551 
552     ata_promise_mio_dmainit(dev);
553 
554     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
555 	ch->r_io[i].res = ctlr->r_res2;
556 	ch->r_io[i].offset = offset + 0x0200 + (i << 2) + (ch->unit << 7);
557     }
558     ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
559     ch->r_io[ATA_CONTROL].offset = offset + 0x0238 + (ch->unit << 7);
560     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
561     ata_default_registers(dev);
562     if ((ctlr->chip->cfg2 & (PR_SATA | PR_SATA2)) ||
563 	((ctlr->chip->cfg2 & (PR_CMBO | PR_CMBO2)) && ch->unit < 2)) {
564 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
565 	ch->r_io[ATA_SSTATUS].offset = 0x400 + (ch->unit << 8);
566 	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
567 	ch->r_io[ATA_SERROR].offset = 0x404 + (ch->unit << 8);
568 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
569 	ch->r_io[ATA_SCONTROL].offset = 0x408 + (ch->unit << 8);
570 	ch->flags |= ATA_NO_SLAVE;
571 	ch->flags |= ATA_SATA;
572     }
573     ch->flags |= ATA_USE_16BIT;
574     ch->flags |= ATA_CHECKS_CABLE;
575 
576     ata_generic_hw(dev);
577     if (ctlr->chip->cfg2 & PR_SX4X) {
578 	ch->hw.command = ata_promise_sx4_command;
579     }
580     else {
581 	ch->hw.command = ata_promise_mio_command;
582 	ch->hw.status = ata_promise_mio_status;
583 	ch->hw.softreset = ata_promise_mio_softreset;
584 	ch->hw.pm_read = ata_promise_mio_pm_read;
585 	ch->hw.pm_write = ata_promise_mio_pm_write;
586      }
587     return 0;
588 }
589 
590 static int
591 ata_promise_mio_ch_detach(device_t dev)
592 {
593 
594     ata_dmafini(dev);
595     return (0);
596 }
597 
598 static void
599 ata_promise_mio_intr(void *data)
600 {
601     struct ata_pci_controller *ctlr = data;
602     struct ata_channel *ch;
603     u_int32_t vector;
604     int unit;
605 
606     /*
607      * since reading interrupt status register on early "mio" chips
608      * clears the status bits we cannot read it for each channel later on
609      * in the generic interrupt routine.
610      */
611     vector = ATA_INL(ctlr->r_res2, 0x040);
612     ATA_OUTL(ctlr->r_res2, 0x040, vector);
613     ctlr->chipset_data = (void *)(uintptr_t)vector;
614 
615     for (unit = 0; unit < ctlr->channels; unit++) {
616 	if ((ch = ctlr->interrupt[unit].argument))
617 	    ctlr->interrupt[unit].function(ch);
618     }
619 
620     ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
621 }
622 
623 static int
624 ata_promise_mio_status(device_t dev)
625 {
626     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
627     struct ata_channel *ch = device_get_softc(dev);
628     u_int32_t stat_reg, vector, status;
629 
630     switch (ctlr->chip->cfg2) {
631     case PR_PATA:
632     case PR_CMBO:
633     case PR_SATA:
634 	stat_reg = 0x6c;
635 	break;
636     case PR_CMBO2:
637     case PR_SATA2:
638     default:
639 	stat_reg = 0x60;
640 	break;
641     }
642 
643     /* read and acknowledge interrupt */
644     vector = (uint32_t)(uintptr_t)ctlr->chipset_data;
645 
646     /* read and clear interface status */
647     status = ATA_INL(ctlr->r_res2, stat_reg);
648     ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
649 
650     /* check for and handle disconnect events */
651     if (status & (0x00000001 << ch->unit)) {
652 	if (bootverbose)
653 	    device_printf(dev, "DISCONNECT requested\n");
654 	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
655     }
656 
657     /* check for and handle connect events */
658     if (status & (0x00000010 << ch->unit)) {
659 	if (bootverbose)
660 	    device_printf(dev, "CONNECT requested\n");
661 	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
662     }
663 
664     /* do we have any device action ? */
665     return (vector & (1 << (ch->unit + 1)));
666 }
667 
668 static int
669 ata_promise_mio_command(struct ata_request *request)
670 {
671     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
672     struct ata_channel *ch = device_get_softc(request->parent);
673 
674     u_int32_t *wordp = (u_int32_t *)ch->dma.work;
675 
676     ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
677 
678     if ((ctlr->chip->cfg2 == PR_SATA2) ||
679         ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
680 	/* set portmultiplier port */
681 	ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), request->unit & 0x0f);
682     }
683 
684     /* XXX SOS add ATAPI commands support later */
685     switch (request->u.ata.command) {
686     default:
687 	return ata_generic_command(request);
688 
689     case ATA_READ_DMA:
690     case ATA_READ_DMA48:
691 	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
692 	break;
693 
694     case ATA_WRITE_DMA:
695     case ATA_WRITE_DMA48:
696 	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
697 	break;
698     }
699     wordp[1] = htole32(request->dma->sg_bus);
700     wordp[2] = 0;
701     ata_promise_apkt((u_int8_t*)wordp, request);
702 
703     ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma.work_bus);
704     return 0;
705 }
706 
707 static void
708 ata_promise_mio_reset(device_t dev)
709 {
710     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
711     struct ata_channel *ch = device_get_softc(dev);
712     struct ata_promise_sx4 *hpktp;
713 
714     switch (ctlr->chip->cfg2) {
715     case PR_SX4X:
716 
717 	/* softreset channel ATA module */
718 	hpktp = ctlr->chipset_data;
719 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
720 	ata_udelay(1000);
721 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
722 		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
723 		  ~0x00003f9f) | (ch->unit + 1));
724 
725 	/* softreset HOST module */ /* XXX SOS what about other outstandings */
726 	mtx_lock(&hpktp->mtx);
727 	ATA_OUTL(ctlr->r_res2, 0xc012c,
728 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
729 	DELAY(10);
730 	ATA_OUTL(ctlr->r_res2, 0xc012c,
731 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
732 	hpktp->busy = 0;
733 	mtx_unlock(&hpktp->mtx);
734 	ata_generic_reset(dev);
735 	break;
736 
737     case PR_PATA:
738     case PR_CMBO:
739     case PR_SATA:
740 	if ((ctlr->chip->cfg2 == PR_SATA) ||
741 	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
742 
743 	    /* mask plug/unplug intr */
744 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
745 	}
746 
747 	/* softreset channels ATA module */
748 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
749 	ata_udelay(10000);
750 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
751 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
752 		  ~0x00003f9f) | (ch->unit + 1));
753 
754 	if ((ctlr->chip->cfg2 == PR_SATA) ||
755 	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
756 
757 	    if (ata_sata_phy_reset(dev, -1, 1))
758 		ata_generic_reset(dev);
759 	    else
760 		ch->devices = 0;
761 
762 	    /* reset and enable plug/unplug intr */
763 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
764 	}
765 	else
766 	    ata_generic_reset(dev);
767 	break;
768 
769     case PR_CMBO2:
770     case PR_SATA2:
771 	if ((ctlr->chip->cfg2 == PR_SATA2) ||
772 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
773 	    /* set portmultiplier port */
774 	    //ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
775 
776 	    /* mask plug/unplug intr */
777 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
778 	}
779 
780 	/* softreset channels ATA module */
781 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
782 	ata_udelay(10000);
783 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
784 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
785 		  ~0x00003f9f) | (ch->unit + 1));
786 
787 	if ((ctlr->chip->cfg2 == PR_SATA2) ||
788 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
789 
790 	    /* set PHY mode to "improved" */
791 	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
792 		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
793 		     ~0x00000003) | 0x00000001);
794 
795 	    if (ata_sata_phy_reset(dev, -1, 1)) {
796 		u_int32_t signature = ch->hw.softreset(dev, ATA_PM);
797 
798 		if (1 | bootverbose)
799         	    device_printf(dev, "SIGNATURE: %08x\n", signature);
800 
801 		switch (signature >> 16) {
802 		case 0x0000:
803 		    ch->devices = ATA_ATA_MASTER;
804 		    break;
805 		case 0x9669:
806 		    ch->devices = ATA_PORTMULTIPLIER;
807 		    ata_pm_identify(dev);
808 		    break;
809 		case 0xeb14:
810 		    ch->devices = ATA_ATAPI_MASTER;
811 		    break;
812 		default: /* SOS XXX */
813 		    if (bootverbose)
814 			device_printf(dev,
815 				      "No signature, assuming disk device\n");
816 		    ch->devices = ATA_ATA_MASTER;
817 		}
818 		if (bootverbose)
819 		    device_printf(dev, "promise_mio_reset devices=%08x\n",
820 		    		  ch->devices);
821 
822 	    } else
823 		ch->devices = 0;
824 
825 	    /* reset and enable plug/unplug intr */
826 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
827 
828 	    ///* set portmultiplier port */
829 	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
830 	}
831 	else
832 	    ata_generic_reset(dev);
833 	break;
834 
835     }
836 }
837 
838 static int
839 ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result)
840 {
841     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
842     struct ata_channel *ch = device_get_softc(dev);
843     int timeout = 0;
844 
845     if (port < 0) {
846 	*result = ATA_IDX_INL(ch, reg);
847 	return (0);
848     }
849     if (port < ATA_PM) {
850 	switch (reg) {
851 	case ATA_SSTATUS:
852 	    reg = 0;
853 	    break;
854 	case ATA_SERROR:
855 	    reg = 1;
856 	    break;
857 	case ATA_SCONTROL:
858 	    reg = 2;
859 	    break;
860 	default:
861 	    return (EINVAL);
862 	}
863     }
864     /* set portmultiplier port */
865     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
866 
867     ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
868     ATA_IDX_OUTB(ch, ATA_DRIVE, port);
869 
870     ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_READ_PM);
871 
872     while (timeout < 1000000) {
873 	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
874 	if (!(status & ATA_S_BUSY))
875 	    break;
876 	timeout += 1000;
877 	DELAY(1000);
878     }
879     if (timeout >= 1000000)
880 	return ATA_E_ABORT;
881 
882     *result = ATA_IDX_INB(ch, ATA_COUNT) |
883 	      (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
884 	      (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
885 	      (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
886     return 0;
887 }
888 
889 static int
890 ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t value)
891 {
892     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
893     struct ata_channel *ch = device_get_softc(dev);
894     int timeout = 0;
895 
896     if (port < 0) {
897 	ATA_IDX_OUTL(ch, reg, value);
898 	return (0);
899     }
900     if (port < ATA_PM) {
901 	switch (reg) {
902 	case ATA_SSTATUS:
903 	    reg = 0;
904 	    break;
905 	case ATA_SERROR:
906 	    reg = 1;
907 	    break;
908 	case ATA_SCONTROL:
909 	    reg = 2;
910 	    break;
911 	default:
912 	    return (EINVAL);
913 	}
914     }
915     /* set portmultiplier port */
916     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
917 
918     ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
919     ATA_IDX_OUTB(ch, ATA_DRIVE, port);
920     ATA_IDX_OUTB(ch, ATA_COUNT, value & 0xff);
921     ATA_IDX_OUTB(ch, ATA_SECTOR, (value >> 8) & 0xff);
922     ATA_IDX_OUTB(ch, ATA_CYL_LSB, (value >> 16) & 0xff);
923     ATA_IDX_OUTB(ch, ATA_CYL_MSB, (value >> 24) & 0xff);
924 
925     ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_WRITE_PM);
926 
927     while (timeout < 1000000) {
928 	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
929 	if (!(status & ATA_S_BUSY))
930 	    break;
931 	timeout += 1000;
932 	DELAY(1000);
933     }
934     if (timeout >= 1000000)
935 	return ATA_E_ABORT;
936 
937     return ATA_IDX_INB(ch, ATA_ERROR);
938 }
939 
940 /* must be called with ATA channel locked and state_mtx held */
941 static u_int32_t
942 ata_promise_mio_softreset(device_t dev, int port)
943 {
944     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
945     struct ata_channel *ch = device_get_softc(dev);
946     int timeout;
947 
948     /* set portmultiplier port */
949     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), port & 0x0f);
950 
951     /* softreset device on this channel */
952     ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | ATA_DEV(ATA_MASTER));
953     DELAY(10);
954     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS | ATA_A_RESET);
955     ata_udelay(10000);
956     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS);
957     ata_udelay(150000);
958     ATA_IDX_INB(ch, ATA_ERROR);
959 
960     /* wait for BUSY to go inactive */
961     for (timeout = 0; timeout < 100; timeout++) {
962 	u_int8_t /* err, */ stat;
963 
964 	/* err = */ ATA_IDX_INB(ch, ATA_ERROR);
965 	stat = ATA_IDX_INB(ch, ATA_STATUS);
966 
967 	//if (stat == err && timeout > (stat & ATA_S_BUSY ? 100 : 10))
968 	    //break;
969 
970 	if (!(stat & ATA_S_BUSY)) {
971 	    //if ((err & 0x7f) == ATA_E_ILI) {
972 		return ATA_IDX_INB(ch, ATA_COUNT) |
973 		       (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
974 		       (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
975 		       (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
976 	    //}
977 	    //else if (stat & 0x0f) {
978 		//stat |= ATA_S_BUSY;
979 	    //}
980 	}
981 
982 	if (!(stat & ATA_S_BUSY) || (stat == 0xff && timeout > 10))
983 	    break;
984 	ata_udelay(100000);
985     }
986     return -1;
987 }
988 
989 static void
990 ata_promise_mio_dmainit(device_t dev)
991 {
992     struct ata_channel *ch = device_get_softc(dev);
993 
994     /* note start and stop are not used here */
995     ch->dma.setprd = ata_promise_mio_setprd;
996     ch->dma.max_iosize = 65536;
997     ata_dmainit(dev);
998 }
999 
1000 #define MAXLASTSGSIZE (32 * sizeof(u_int32_t))
1001 static void
1002 ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
1003 {
1004     struct ata_dmasetprd_args *args = xsc;
1005     struct ata_dma_prdentry *prd = args->dmatab;
1006     int i;
1007 
1008     if ((args->error = error))
1009 	return;
1010 
1011     for (i = 0; i < nsegs; i++) {
1012 	prd[i].addr = htole32(segs[i].ds_addr);
1013 	prd[i].count = htole32(segs[i].ds_len);
1014     }
1015     if (segs[i - 1].ds_len > MAXLASTSGSIZE) {
1016 	//printf("split last SG element of %u\n", segs[i - 1].ds_len);
1017 	prd[i - 1].count = htole32(segs[i - 1].ds_len - MAXLASTSGSIZE);
1018 	prd[i].count = htole32(MAXLASTSGSIZE);
1019 	prd[i].addr = htole32(segs[i - 1].ds_addr +
1020 			      (segs[i - 1].ds_len - MAXLASTSGSIZE));
1021 	nsegs++;
1022 	i++;
1023     }
1024     prd[i - 1].count |= htole32(ATA_DMA_EOT);
1025     KASSERT(nsegs <= ATA_DMA_ENTRIES, ("too many DMA segment entries\n"));
1026     args->nsegs = nsegs;
1027 }
1028 
1029 static int
1030 ata_promise_mio_setmode(device_t dev, int target, int mode)
1031 {
1032         struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1033         struct ata_channel *ch = device_get_softc(dev);
1034 
1035         if ( (ctlr->chip->cfg2 == PR_SATA) ||
1036     	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1037 	     (ctlr->chip->cfg2 == PR_SATA2) ||
1038 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1039 		mode = ata_sata_setmode(dev, target, mode);
1040 	else
1041 		mode = ata_promise_setmode(dev, target, mode);
1042 	return (mode);
1043 }
1044 
1045 static int
1046 ata_promise_mio_getrev(device_t dev, int target)
1047 {
1048         struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1049         struct ata_channel *ch = device_get_softc(dev);
1050 
1051         if ( (ctlr->chip->cfg2 == PR_SATA) ||
1052     	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1053 	     (ctlr->chip->cfg2 == PR_SATA2) ||
1054 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1055 		return (ata_sata_getrev(dev, target));
1056 	else
1057 		return (0);
1058 }
1059 
1060 static void
1061 ata_promise_sx4_intr(void *data)
1062 {
1063     struct ata_pci_controller *ctlr = data;
1064     struct ata_channel *ch;
1065     u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
1066     int unit;
1067 
1068     for (unit = 0; unit < ctlr->channels; unit++) {
1069 	if (vector & (1 << (unit + 1)))
1070 	    if ((ch = ctlr->interrupt[unit].argument))
1071 		ctlr->interrupt[unit].function(ch);
1072 	if (vector & (1 << (unit + 5)))
1073 	    if ((ch = ctlr->interrupt[unit].argument))
1074 		ata_promise_queue_hpkt(ctlr,
1075 				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1076 					       ATA_PDC_HPKT_OFFSET));
1077 	if (vector & (1 << (unit + 9))) {
1078 	    ata_promise_next_hpkt(ctlr);
1079 	    if ((ch = ctlr->interrupt[unit].argument))
1080 		ctlr->interrupt[unit].function(ch);
1081 	}
1082 	if (vector & (1 << (unit + 13))) {
1083 	    ata_promise_next_hpkt(ctlr);
1084 	    if ((ch = ctlr->interrupt[unit].argument))
1085 		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1086 			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1087 			 ATA_PDC_APKT_OFFSET));
1088 	}
1089     }
1090 }
1091 
1092 static int
1093 ata_promise_sx4_command(struct ata_request *request)
1094 {
1095     device_t gparent = device_get_parent(request->parent);
1096     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1097     struct ata_channel *ch = device_get_softc(request->parent);
1098     struct ata_dma_prdentry *prd;
1099     caddr_t window = rman_get_virtual(ctlr->r_res1);
1100     u_int32_t *wordp;
1101     int i, idx, length = 0;
1102 
1103     /* XXX SOS add ATAPI commands support later */
1104     switch (request->u.ata.command) {
1105 
1106     default:
1107 	return -1;
1108 
1109     case ATA_ATA_IDENTIFY:
1110     case ATA_READ:
1111     case ATA_READ48:
1112     case ATA_READ_MUL:
1113     case ATA_READ_MUL48:
1114     case ATA_WRITE:
1115     case ATA_WRITE48:
1116     case ATA_WRITE_MUL:
1117     case ATA_WRITE_MUL48:
1118 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1119 	return ata_generic_command(request);
1120 
1121     case ATA_SETFEATURES:
1122     case ATA_FLUSHCACHE:
1123     case ATA_FLUSHCACHE48:
1124     case ATA_SLEEP:
1125     case ATA_SET_MULTI:
1126 	wordp = (u_int32_t *)
1127 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1128 	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
1129 	wordp[1] = 0;
1130 	wordp[2] = 0;
1131 	ata_promise_apkt((u_int8_t *)wordp, request);
1132 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1133 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 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 	return 0;
1137 
1138     case ATA_READ_DMA:
1139     case ATA_READ_DMA48:
1140     case ATA_WRITE_DMA:
1141     case ATA_WRITE_DMA48:
1142 	prd = request->dma->sg;
1143 	wordp = (u_int32_t *)
1144 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
1145 	i = idx = 0;
1146 	do {
1147 	    wordp[idx++] = prd[i].addr;
1148 	    wordp[idx++] = prd[i].count;
1149 	    length += (prd[i].count & ~ATA_DMA_EOT);
1150 	} while (!(prd[i++].count & ATA_DMA_EOT));
1151 
1152 	wordp = (u_int32_t *)
1153 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
1154 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1155 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1156 
1157 	wordp = (u_int32_t *)
1158 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
1159 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1160 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1161 
1162 	wordp = (u_int32_t *)
1163 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
1164 	if (request->flags & ATA_R_READ)
1165 	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
1166 	if (request->flags & ATA_R_WRITE)
1167 	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
1168 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
1169 	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
1170 	wordp[3] = 0;
1171 
1172 	wordp = (u_int32_t *)
1173 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1174 	if (request->flags & ATA_R_READ)
1175 	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
1176 	if (request->flags & ATA_R_WRITE)
1177 	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
1178 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
1179 	wordp[2] = 0;
1180 	ata_promise_apkt((u_int8_t *)wordp, request);
1181 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1182 
1183 	if (request->flags & ATA_R_READ) {
1184 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
1185 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
1186 	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1187 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
1188 	}
1189 	if (request->flags & ATA_R_WRITE) {
1190 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
1191 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
1192 	    ata_promise_queue_hpkt(ctlr,
1193 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
1194 	}
1195 	return 0;
1196     }
1197 }
1198 
1199 static int
1200 ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
1201 {
1202     int i = 12;
1203 
1204     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
1205     bytep[i++] = ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit);
1206     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
1207     bytep[i++] = ATA_A_4BIT;
1208 
1209     if (request->flags & ATA_R_48BIT) {
1210 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1211 	bytep[i++] = request->u.ata.feature >> 8;
1212 	bytep[i++] = request->u.ata.feature;
1213 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
1214 	bytep[i++] = request->u.ata.count >> 8;
1215 	bytep[i++] = request->u.ata.count;
1216 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1217 	bytep[i++] = request->u.ata.lba >> 24;
1218 	bytep[i++] = request->u.ata.lba;
1219 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1220 	bytep[i++] = request->u.ata.lba >> 32;
1221 	bytep[i++] = request->u.ata.lba >> 8;
1222 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1223 	bytep[i++] = request->u.ata.lba >> 40;
1224 	bytep[i++] = request->u.ata.lba >> 16;
1225 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1226 	bytep[i++] = ATA_D_LBA | ATA_DEV(request->unit);
1227     }
1228     else {
1229 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1230 	bytep[i++] = request->u.ata.feature;
1231 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
1232 	bytep[i++] = request->u.ata.count;
1233 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1234 	bytep[i++] = request->u.ata.lba;
1235 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1236 	bytep[i++] = request->u.ata.lba >> 8;
1237 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1238 	bytep[i++] = request->u.ata.lba >> 16;
1239 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1240 	bytep[i++] = ATA_D_LBA | ATA_D_IBM | ATA_DEV(request->unit) |
1241 		     ((request->u.ata.lba >> 24)&0xf);
1242     }
1243     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
1244     bytep[i++] = request->u.ata.command;
1245     return i;
1246 }
1247 
1248 static void
1249 ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
1250 {
1251     struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1252 
1253     mtx_lock(&hpktp->mtx);
1254     if (hpktp->busy) {
1255 	struct host_packet *hp =
1256 	    malloc(sizeof(struct host_packet), M_TEMP, M_NOWAIT | M_ZERO);
1257 	hp->addr = hpkt;
1258 	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
1259     }
1260     else {
1261 	hpktp->busy = 1;
1262 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
1263     }
1264     mtx_unlock(&hpktp->mtx);
1265 }
1266 
1267 static void
1268 ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
1269 {
1270     struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1271     struct host_packet *hp;
1272 
1273     mtx_lock(&hpktp->mtx);
1274     if ((hp = TAILQ_FIRST(&hpktp->queue))) {
1275 	TAILQ_REMOVE(&hpktp->queue, hp, chain);
1276 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
1277 	free(hp, M_TEMP);
1278     }
1279     else
1280 	hpktp->busy = 0;
1281     mtx_unlock(&hpktp->mtx);
1282 }
1283 
1284 ATA_DECLARE_DRIVER(ata_promise);
1285