xref: /freebsd/sys/dev/ata/chipsets/ata-promise.c (revision 96190b4fef3b4a0cc3ca0606b0c4e3e69a5e6717)
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     const char *channel;
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     /* if we are on a FastTrak TX4, adjust the interrupt resource */
186     channel = NULL;
187     if ((idx->cfg2 & PR_TX4) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
188 	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
189 		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
190 	((devid == ATA_DEC_21150) || (devid == ATA_DEC_21150_1))) {
191 	static rman_res_t start = 0, end = 0;
192 
193 	if (pci_get_slot(dev) == 1) {
194 	    bus_get_resource(dev, SYS_RES_IRQ, 0, &start, &end);
195 	    channel = " (channel 0+1)";
196 	}
197 	else if (pci_get_slot(dev) == 2 && start && end) {
198 	    bus_set_resource(dev, SYS_RES_IRQ, 0, start, end);
199 	    channel = " (channel 2+3)";
200 	}
201 	else {
202 	    start = end = 0;
203 	}
204     }
205     device_set_descf(dev, "Promise %s%s %s controller", idx->text,
206 	channel == NULL ? "" : channel, ata_mode2str(idx->max_dma));
207     ctlr->chip = idx;
208     ctlr->chipinit = ata_promise_chipinit;
209     return (BUS_PROBE_LOW_PRIORITY);
210 }
211 
212 static int
213 ata_promise_chipinit(device_t dev)
214 {
215     struct ata_pci_controller *ctlr = device_get_softc(dev);
216     int stat_reg;
217 
218     if (ata_setup_interrupt(dev, ata_generic_intr))
219 	return ENXIO;
220 
221     switch  (ctlr->chip->cfg1) {
222     case PR_NEW:
223 	/* setup clocks */
224 	ATA_OUTB(ctlr->r_res1, 0x11, ATA_INB(ctlr->r_res1, 0x11) | 0x0a);
225 	/* FALLTHROUGH */
226 
227     case PR_OLD:
228 	/* enable burst mode */
229 	ATA_OUTB(ctlr->r_res1, 0x1f, ATA_INB(ctlr->r_res1, 0x1f) | 0x01);
230 	ctlr->ch_attach = ata_promise_ch_attach;
231 	ctlr->ch_detach = ata_pci_ch_detach;
232 	ctlr->setmode = ata_promise_setmode;
233 	return 0;
234 
235     case PR_TX:
236 	ctlr->ch_attach = ata_promise_tx2_ch_attach;
237 	ctlr->ch_detach = ata_pci_ch_detach;
238 	ctlr->setmode = ata_promise_setmode;
239 	return 0;
240 
241     case PR_MIO:
242 	ctlr->r_type1 = SYS_RES_MEMORY;
243 	ctlr->r_rid1 = PCIR_BAR(4);
244 	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
245 						    &ctlr->r_rid1, RF_ACTIVE)))
246 	    goto failnfree;
247 
248 	ctlr->r_type2 = SYS_RES_MEMORY;
249 	ctlr->r_rid2 = PCIR_BAR(3);
250 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
251 						    &ctlr->r_rid2, RF_ACTIVE)))
252 	    goto failnfree;
253 
254 	if (ctlr->chip->cfg2 == PR_SX4X) {
255 	    struct ata_promise_sx4 *hpkt;
256 	    u_int32_t dimm = ATA_INL(ctlr->r_res2, 0x000c0080);
257 
258 	    if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
259 		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
260 			       ata_promise_sx4_intr, ctlr, &ctlr->handle)) {
261 		device_printf(dev, "unable to setup interrupt\n");
262 		goto failnfree;
263 	    }
264 
265 	    /* print info about cache memory */
266 	    device_printf(dev, "DIMM size %dMB @ 0x%08x%s\n",
267 			  (((dimm >> 16) & 0xff)-((dimm >> 24) & 0xff)+1) << 4,
268 			  ((dimm >> 24) & 0xff),
269 			  ATA_INL(ctlr->r_res2, 0x000c0088) & (1<<16) ?
270 			  " ECC enabled" : "" );
271 
272 	    /* adjust cache memory parameters */
273 	    ATA_OUTL(ctlr->r_res2, 0x000c000c,
274 		     (ATA_INL(ctlr->r_res2, 0x000c000c) & 0xffff0000));
275 
276 	    /* setup host packet controls */
277 	    hpkt = malloc(sizeof(struct ata_promise_sx4),
278 			  M_ATAPCI, M_NOWAIT | M_ZERO);
279 	    if (hpkt == NULL) {
280 		device_printf(dev, "Cannot allocate HPKT\n");
281 		goto failnfree;
282 	    }
283 	    mtx_init(&hpkt->mtx, "ATA promise HPKT lock", NULL, MTX_DEF);
284 	    TAILQ_INIT(&hpkt->queue);
285 	    hpkt->busy = 0;
286 	    ctlr->chipset_data = hpkt;
287 	    ctlr->ch_attach = ata_promise_mio_ch_attach;
288 	    ctlr->ch_detach = ata_promise_mio_ch_detach;
289 	    ctlr->reset = ata_promise_mio_reset;
290 	    ctlr->setmode = ata_promise_setmode;
291 	    ctlr->channels = 4;
292 	    return 0;
293 	}
294 
295 	/* mio type controllers need an interrupt intercept */
296 	if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
297 	    bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
298 			       ata_promise_mio_intr, ctlr, &ctlr->handle)) {
299 		device_printf(dev, "unable to setup interrupt\n");
300 		goto failnfree;
301 	}
302 
303 	switch (ctlr->chip->cfg2) {
304 	case PR_PATA:
305 	    ctlr->channels = ((ATA_INL(ctlr->r_res2, 0x48) & 0x01) > 0) +
306 			     ((ATA_INL(ctlr->r_res2, 0x48) & 0x02) > 0) + 2;
307 	    goto sata150;
308 	case PR_CMBO:
309 	    ctlr->channels = 3;
310 	    goto sata150;
311 	case PR_SATA:
312 	    ctlr->channels = 4;
313 sata150:
314 	    stat_reg = 0x6c;
315 	    break;
316 
317 	case PR_CMBO2:
318 	    ctlr->channels = 3;
319 	    goto sataii;
320 	case PR_SATA2:
321 	default:
322 	    ctlr->channels = 4;
323 sataii:
324 	    stat_reg = 0x60;
325 	    break;
326 	}
327 
328 	/* prime fake interrupt register */
329 	ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
330 
331 	/* clear SATA status and unmask interrupts */
332 	ATA_OUTL(ctlr->r_res2, stat_reg, 0x000000ff);
333 
334 	/* enable "long burst length" on gen2 chips */
335 	if ((ctlr->chip->cfg2 == PR_SATA2) || (ctlr->chip->cfg2 == PR_CMBO2))
336 	    ATA_OUTL(ctlr->r_res2, 0x44, ATA_INL(ctlr->r_res2, 0x44) | 0x2000);
337 
338 	ctlr->ch_attach = ata_promise_mio_ch_attach;
339 	ctlr->ch_detach = ata_promise_mio_ch_detach;
340 	ctlr->reset = ata_promise_mio_reset;
341 	ctlr->setmode = ata_promise_mio_setmode;
342 	ctlr->getrev = ata_promise_mio_getrev;
343 
344 	return 0;
345     }
346 
347 failnfree:
348     if (ctlr->r_res2)
349 	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
350     if (ctlr->r_res1)
351 	bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
352     return ENXIO;
353 }
354 
355 static int
356 ata_promise_ch_attach(device_t dev)
357 {
358     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
359     struct ata_channel *ch = device_get_softc(dev);
360 
361     if (ata_pci_ch_attach(dev))
362 	return ENXIO;
363 
364     if (ctlr->chip->cfg1 == PR_NEW) {
365         ch->dma.start = ata_promise_dmastart;
366         ch->dma.stop = ata_promise_dmastop;
367         ch->dma.reset = ata_promise_dmareset;
368     }
369 
370     ch->hw.status = ata_promise_status;
371     ch->flags |= ATA_NO_ATAPI_DMA;
372     ch->flags |= ATA_CHECKS_CABLE;
373     return 0;
374 }
375 
376 static int
377 ata_promise_status(device_t dev)
378 {
379     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
380     struct ata_channel *ch = device_get_softc(dev);
381 
382     if (ATA_INL(ctlr->r_res1, 0x1c) & (ch->unit ? 0x00004000 : 0x00000400)) {
383 	return ata_pci_status(dev);
384     }
385     return 0;
386 }
387 
388 static int
389 ata_promise_dmastart(struct ata_request *request)
390 {
391     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
392     struct ata_channel *ch = device_get_softc(request->parent);
393 
394     if (request->flags & ATA_R_48BIT) {
395 	ATA_OUTB(ctlr->r_res1, 0x11,
396 		 ATA_INB(ctlr->r_res1, 0x11) | (ch->unit ? 0x08 : 0x02));
397 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20,
398 		 ((request->flags & ATA_R_READ) ? 0x05000000 : 0x06000000) |
399 		 (request->bytecount >> 1));
400     }
401     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
402 		 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
403     ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
404     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
405 		 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0) |
406 		 ATA_BMCMD_START_STOP);
407     ch->dma.flags |= ATA_DMA_ACTIVE;
408     return 0;
409 }
410 
411 static int
412 ata_promise_dmastop(struct ata_request *request)
413 {
414     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
415     struct ata_channel *ch = device_get_softc(request->parent);
416     int error;
417 
418     if (request->flags & ATA_R_48BIT) {
419 	ATA_OUTB(ctlr->r_res1, 0x11,
420 		 ATA_INB(ctlr->r_res1, 0x11) & ~(ch->unit ? 0x08 : 0x02));
421 	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20, 0);
422     }
423     error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT);
424     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
425 		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
426     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
427     ch->dma.flags &= ~ATA_DMA_ACTIVE;
428     return error;
429 }
430 
431 static void
432 ata_promise_dmareset(device_t dev)
433 {
434     struct ata_channel *ch = device_get_softc(dev);
435 
436     ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
437 		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
438     ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
439     ch->flags &= ~ATA_DMA_ACTIVE;
440 }
441 
442 static int
443 ata_promise_setmode(device_t dev, int target, int mode)
444 {
445     device_t parent = device_get_parent(dev);
446     struct ata_pci_controller *ctlr = device_get_softc(parent);
447     struct ata_channel *ch = device_get_softc(dev);
448     int devno = (ch->unit << 1) + target;
449     static const uint32_t timings[][2] = {
450     /*    PR_OLD      PR_NEW               mode */
451 	{ 0x004ff329, 0x004fff2f },     /* PIO 0 */
452 	{ 0x004fec25, 0x004ff82a },     /* PIO 1 */
453 	{ 0x004fe823, 0x004ff026 },     /* PIO 2 */
454 	{ 0x004fe622, 0x004fec24 },     /* PIO 3 */
455 	{ 0x004fe421, 0x004fe822 },     /* PIO 4 */
456 	{ 0x004567f3, 0x004acef6 },     /* MWDMA 0 */
457 	{ 0x004467f3, 0x0048cef6 },     /* MWDMA 1 */
458 	{ 0x004367f3, 0x0046cef6 },     /* MWDMA 2 */
459 	{ 0x004367f3, 0x0046cef6 },     /* UDMA 0 */
460 	{ 0x004247f3, 0x00448ef6 },     /* UDMA 1 */
461 	{ 0x004127f3, 0x00436ef6 },     /* UDMA 2 */
462 	{ 0,          0x00424ef6 },     /* UDMA 3 */
463 	{ 0,          0x004127f3 },     /* UDMA 4 */
464 	{ 0,          0x004127f3 }      /* UDMA 5 */
465     };
466 
467     mode = min(mode, ctlr->chip->max_dma);
468 
469     switch (ctlr->chip->cfg1) {
470     case PR_OLD:
471     case PR_NEW:
472 	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
473 	    (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 (ata_dma_check_80pin && 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 (ata_dma_check_80pin && 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 	    /* mask plug/unplug intr */
730 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
731 	}
732 
733 	/* softreset channels ATA module */
734 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
735 	ata_udelay(10000);
736 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
737 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
738 		  ~0x00003f9f) | (ch->unit + 1));
739 
740 	if ((ctlr->chip->cfg2 == PR_SATA) ||
741 	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
742 	    if (ata_sata_phy_reset(dev, -1, 1))
743 		ata_generic_reset(dev);
744 	    else
745 		ch->devices = 0;
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 	    /* set PHY mode to "improved" */
775 	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
776 		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
777 		     ~0x00000003) | 0x00000001);
778 
779 	    if (ata_sata_phy_reset(dev, -1, 1)) {
780 		u_int32_t signature = ch->hw.softreset(dev, ATA_PM);
781 
782 		if (bootverbose)
783         	    device_printf(dev, "SIGNATURE: %08x\n", signature);
784 
785 		switch (signature >> 16) {
786 		case 0x0000:
787 		    ch->devices = ATA_ATA_MASTER;
788 		    break;
789 		case 0x9669:
790 		    ch->devices = ATA_PORTMULTIPLIER;
791 		    ata_pm_identify(dev);
792 		    break;
793 		case 0xeb14:
794 		    ch->devices = ATA_ATAPI_MASTER;
795 		    break;
796 		default: /* SOS XXX */
797 		    if (bootverbose)
798 			device_printf(dev,
799 				      "No signature, assuming disk device\n");
800 		    ch->devices = ATA_ATA_MASTER;
801 		}
802 		if (bootverbose)
803 		    device_printf(dev, "promise_mio_reset devices=%08x\n",
804 		    		  ch->devices);
805 
806 	    } else
807 		ch->devices = 0;
808 
809 	    /* reset and enable plug/unplug intr */
810 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
811 
812 	    ///* set portmultiplier port */
813 	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
814 	}
815 	else
816 	    ata_generic_reset(dev);
817 	break;
818     }
819 }
820 
821 static int
822 ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result)
823 {
824     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
825     struct ata_channel *ch = device_get_softc(dev);
826     int timeout = 0;
827 
828     if (port < 0) {
829 	*result = ATA_IDX_INL(ch, reg);
830 	return (0);
831     }
832     if (port < ATA_PM) {
833 	switch (reg) {
834 	case ATA_SSTATUS:
835 	    reg = 0;
836 	    break;
837 	case ATA_SERROR:
838 	    reg = 1;
839 	    break;
840 	case ATA_SCONTROL:
841 	    reg = 2;
842 	    break;
843 	default:
844 	    return (EINVAL);
845 	}
846     }
847     /* set portmultiplier port */
848     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
849 
850     ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
851     ATA_IDX_OUTB(ch, ATA_DRIVE, port);
852 
853     ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_READ_PM);
854 
855     while (timeout < 1000000) {
856 	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
857 	if (!(status & ATA_S_BUSY))
858 	    break;
859 	timeout += 1000;
860 	DELAY(1000);
861     }
862     if (timeout >= 1000000)
863 	return ATA_E_ABORT;
864 
865     *result = ATA_IDX_INB(ch, ATA_COUNT) |
866 	      (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
867 	      (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
868 	      (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
869     return 0;
870 }
871 
872 static int
873 ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t value)
874 {
875     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
876     struct ata_channel *ch = device_get_softc(dev);
877     int timeout = 0;
878 
879     if (port < 0) {
880 	ATA_IDX_OUTL(ch, reg, value);
881 	return (0);
882     }
883     if (port < ATA_PM) {
884 	switch (reg) {
885 	case ATA_SSTATUS:
886 	    reg = 0;
887 	    break;
888 	case ATA_SERROR:
889 	    reg = 1;
890 	    break;
891 	case ATA_SCONTROL:
892 	    reg = 2;
893 	    break;
894 	default:
895 	    return (EINVAL);
896 	}
897     }
898     /* set portmultiplier port */
899     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
900 
901     ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
902     ATA_IDX_OUTB(ch, ATA_DRIVE, port);
903     ATA_IDX_OUTB(ch, ATA_COUNT, value & 0xff);
904     ATA_IDX_OUTB(ch, ATA_SECTOR, (value >> 8) & 0xff);
905     ATA_IDX_OUTB(ch, ATA_CYL_LSB, (value >> 16) & 0xff);
906     ATA_IDX_OUTB(ch, ATA_CYL_MSB, (value >> 24) & 0xff);
907 
908     ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_WRITE_PM);
909 
910     while (timeout < 1000000) {
911 	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
912 	if (!(status & ATA_S_BUSY))
913 	    break;
914 	timeout += 1000;
915 	DELAY(1000);
916     }
917     if (timeout >= 1000000)
918 	return ATA_E_ABORT;
919 
920     return ATA_IDX_INB(ch, ATA_ERROR);
921 }
922 
923 /* must be called with ATA channel locked and state_mtx held */
924 static u_int32_t
925 ata_promise_mio_softreset(device_t dev, int port)
926 {
927     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
928     struct ata_channel *ch = device_get_softc(dev);
929     int timeout;
930 
931     /* set portmultiplier port */
932     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), port & 0x0f);
933 
934     /* softreset device on this channel */
935     ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | ATA_DEV(ATA_MASTER));
936     DELAY(10);
937     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS | ATA_A_RESET);
938     ata_udelay(10000);
939     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS);
940     ata_udelay(150000);
941     ATA_IDX_INB(ch, ATA_ERROR);
942 
943     /* wait for BUSY to go inactive */
944     for (timeout = 0; timeout < 100; timeout++) {
945 	u_int8_t /* err, */ stat;
946 
947 	/* err = */ ATA_IDX_INB(ch, ATA_ERROR);
948 	stat = ATA_IDX_INB(ch, ATA_STATUS);
949 
950 	//if (stat == err && timeout > (stat & ATA_S_BUSY ? 100 : 10))
951 	    //break;
952 
953 	if (!(stat & ATA_S_BUSY)) {
954 	    //if ((err & 0x7f) == ATA_E_ILI) {
955 		return ATA_IDX_INB(ch, ATA_COUNT) |
956 		       (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
957 		       (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
958 		       (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
959 	    //}
960 	    //else if (stat & 0x0f) {
961 		//stat |= ATA_S_BUSY;
962 	    //}
963 	}
964 
965 	if (!(stat & ATA_S_BUSY) || (stat == 0xff && timeout > 10))
966 	    break;
967 	ata_udelay(100000);
968     }
969     return -1;
970 }
971 
972 static void
973 ata_promise_mio_dmainit(device_t dev)
974 {
975     struct ata_channel *ch = device_get_softc(dev);
976 
977     /* note start and stop are not used here */
978     ch->dma.setprd = ata_promise_mio_setprd;
979     ch->dma.max_iosize = 65536;
980     ata_dmainit(dev);
981 }
982 
983 #define MAXLASTSGSIZE (32 * sizeof(u_int32_t))
984 static void
985 ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
986 {
987     struct ata_dmasetprd_args *args = xsc;
988     struct ata_dma_prdentry *prd = args->dmatab;
989     int i;
990 
991     if ((args->error = error))
992 	return;
993 
994     for (i = 0; i < nsegs; i++) {
995 	prd[i].addr = htole32(segs[i].ds_addr);
996 	prd[i].count = htole32(segs[i].ds_len);
997     }
998     if (segs[i - 1].ds_len > MAXLASTSGSIZE) {
999 	//printf("split last SG element of %u\n", segs[i - 1].ds_len);
1000 	prd[i - 1].count = htole32(segs[i - 1].ds_len - MAXLASTSGSIZE);
1001 	prd[i].count = htole32(MAXLASTSGSIZE);
1002 	prd[i].addr = htole32(segs[i - 1].ds_addr +
1003 			      (segs[i - 1].ds_len - MAXLASTSGSIZE));
1004 	nsegs++;
1005 	i++;
1006     }
1007     prd[i - 1].count |= htole32(ATA_DMA_EOT);
1008     KASSERT(nsegs <= ATA_DMA_ENTRIES, ("too many DMA segment entries\n"));
1009     args->nsegs = nsegs;
1010 }
1011 
1012 static int
1013 ata_promise_mio_setmode(device_t dev, int target, int mode)
1014 {
1015         struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1016         struct ata_channel *ch = device_get_softc(dev);
1017 
1018         if ( (ctlr->chip->cfg2 == PR_SATA) ||
1019     	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1020 	     (ctlr->chip->cfg2 == PR_SATA2) ||
1021 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1022 		mode = ata_sata_setmode(dev, target, mode);
1023 	else
1024 		mode = ata_promise_setmode(dev, target, mode);
1025 	return (mode);
1026 }
1027 
1028 static int
1029 ata_promise_mio_getrev(device_t dev, int target)
1030 {
1031         struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1032         struct ata_channel *ch = device_get_softc(dev);
1033 
1034         if ( (ctlr->chip->cfg2 == PR_SATA) ||
1035     	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1036 	     (ctlr->chip->cfg2 == PR_SATA2) ||
1037 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1038 		return (ata_sata_getrev(dev, target));
1039 	else
1040 		return (0);
1041 }
1042 
1043 static void
1044 ata_promise_sx4_intr(void *data)
1045 {
1046     struct ata_pci_controller *ctlr = data;
1047     struct ata_channel *ch;
1048     u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
1049     int unit;
1050 
1051     for (unit = 0; unit < ctlr->channels; unit++) {
1052 	if (vector & (1 << (unit + 1)))
1053 	    if ((ch = ctlr->interrupt[unit].argument))
1054 		ctlr->interrupt[unit].function(ch);
1055 	if (vector & (1 << (unit + 5)))
1056 	    if ((ch = ctlr->interrupt[unit].argument))
1057 		ata_promise_queue_hpkt(ctlr,
1058 				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1059 					       ATA_PDC_HPKT_OFFSET));
1060 	if (vector & (1 << (unit + 9))) {
1061 	    ata_promise_next_hpkt(ctlr);
1062 	    if ((ch = ctlr->interrupt[unit].argument))
1063 		ctlr->interrupt[unit].function(ch);
1064 	}
1065 	if (vector & (1 << (unit + 13))) {
1066 	    ata_promise_next_hpkt(ctlr);
1067 	    if ((ch = ctlr->interrupt[unit].argument))
1068 		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1069 			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1070 			 ATA_PDC_APKT_OFFSET));
1071 	}
1072     }
1073 }
1074 
1075 static int
1076 ata_promise_sx4_command(struct ata_request *request)
1077 {
1078     device_t gparent = device_get_parent(request->parent);
1079     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1080     struct ata_channel *ch = device_get_softc(request->parent);
1081     struct ata_dma_prdentry *prd;
1082     caddr_t window = rman_get_virtual(ctlr->r_res1);
1083     u_int32_t *wordp;
1084     int i, idx;
1085 
1086     /* XXX SOS add ATAPI commands support later */
1087     switch (request->u.ata.command) {
1088 
1089     default:
1090 	return -1;
1091 
1092     case ATA_ATA_IDENTIFY:
1093     case ATA_READ:
1094     case ATA_READ48:
1095     case ATA_READ_MUL:
1096     case ATA_READ_MUL48:
1097     case ATA_WRITE:
1098     case ATA_WRITE48:
1099     case ATA_WRITE_MUL:
1100     case ATA_WRITE_MUL48:
1101 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1102 	return ata_generic_command(request);
1103 
1104     case ATA_SETFEATURES:
1105     case ATA_FLUSHCACHE:
1106     case ATA_FLUSHCACHE48:
1107     case ATA_SLEEP:
1108     case ATA_SET_MULTI:
1109 	wordp = (u_int32_t *)
1110 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1111 	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
1112 	wordp[1] = 0;
1113 	wordp[2] = 0;
1114 	ata_promise_apkt((u_int8_t *)wordp, request);
1115 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1116 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1117 	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1118 		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
1119 	return 0;
1120 
1121     case ATA_READ_DMA:
1122     case ATA_READ_DMA48:
1123     case ATA_WRITE_DMA:
1124     case ATA_WRITE_DMA48:
1125 	prd = request->dma->sg;
1126 	wordp = (u_int32_t *)
1127 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
1128 	i = idx = 0;
1129 	do {
1130 	    wordp[idx++] = prd[i].addr;
1131 	    wordp[idx++] = prd[i].count;
1132 	} while (!(prd[i++].count & ATA_DMA_EOT));
1133 
1134 	wordp = (u_int32_t *)
1135 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
1136 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1137 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1138 
1139 	wordp = (u_int32_t *)
1140 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
1141 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1142 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1143 
1144 	wordp = (u_int32_t *)
1145 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
1146 	if (request->flags & ATA_R_READ)
1147 	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
1148 	if (request->flags & ATA_R_WRITE)
1149 	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
1150 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
1151 	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
1152 	wordp[3] = 0;
1153 
1154 	wordp = (u_int32_t *)
1155 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1156 	if (request->flags & ATA_R_READ)
1157 	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
1158 	if (request->flags & ATA_R_WRITE)
1159 	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
1160 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
1161 	wordp[2] = 0;
1162 	ata_promise_apkt((u_int8_t *)wordp, request);
1163 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1164 
1165 	if (request->flags & ATA_R_READ) {
1166 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
1167 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
1168 	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1169 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
1170 	}
1171 	if (request->flags & ATA_R_WRITE) {
1172 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
1173 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
1174 	    ata_promise_queue_hpkt(ctlr,
1175 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
1176 	}
1177 	return 0;
1178     }
1179 }
1180 
1181 static int
1182 ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
1183 {
1184     int i = 12;
1185 
1186     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
1187     bytep[i++] = ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit);
1188     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
1189     bytep[i++] = ATA_A_4BIT;
1190 
1191     if (request->flags & ATA_R_48BIT) {
1192 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1193 	bytep[i++] = request->u.ata.feature >> 8;
1194 	bytep[i++] = request->u.ata.feature;
1195 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
1196 	bytep[i++] = request->u.ata.count >> 8;
1197 	bytep[i++] = request->u.ata.count;
1198 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1199 	bytep[i++] = request->u.ata.lba >> 24;
1200 	bytep[i++] = request->u.ata.lba;
1201 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1202 	bytep[i++] = request->u.ata.lba >> 32;
1203 	bytep[i++] = request->u.ata.lba >> 8;
1204 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1205 	bytep[i++] = request->u.ata.lba >> 40;
1206 	bytep[i++] = request->u.ata.lba >> 16;
1207 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1208 	bytep[i++] = ATA_D_LBA | ATA_DEV(request->unit);
1209     }
1210     else {
1211 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1212 	bytep[i++] = request->u.ata.feature;
1213 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
1214 	bytep[i++] = request->u.ata.count;
1215 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1216 	bytep[i++] = request->u.ata.lba;
1217 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1218 	bytep[i++] = request->u.ata.lba >> 8;
1219 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1220 	bytep[i++] = request->u.ata.lba >> 16;
1221 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1222 	bytep[i++] = ATA_D_LBA | ATA_D_IBM | ATA_DEV(request->unit) |
1223 		     ((request->u.ata.lba >> 24)&0xf);
1224     }
1225     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
1226     bytep[i++] = request->u.ata.command;
1227     return i;
1228 }
1229 
1230 static void
1231 ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
1232 {
1233     struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1234 
1235     mtx_lock(&hpktp->mtx);
1236     if (hpktp->busy) {
1237 	struct host_packet *hp =
1238 	    malloc(sizeof(struct host_packet), M_TEMP, M_NOWAIT | M_ZERO);
1239 	hp->addr = hpkt;
1240 	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
1241     }
1242     else {
1243 	hpktp->busy = 1;
1244 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
1245     }
1246     mtx_unlock(&hpktp->mtx);
1247 }
1248 
1249 static void
1250 ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
1251 {
1252     struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1253     struct host_packet *hp;
1254 
1255     mtx_lock(&hpktp->mtx);
1256     if ((hp = TAILQ_FIRST(&hpktp->queue))) {
1257 	TAILQ_REMOVE(&hpktp->queue, hp, chain);
1258 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
1259 	free(hp, M_TEMP);
1260     }
1261     else
1262 	hpktp->busy = 0;
1263     mtx_unlock(&hpktp->mtx);
1264 }
1265 
1266 ATA_DECLARE_DRIVER(ata_promise);
1267