xref: /freebsd/sys/dev/ata/chipsets/ata-promise.c (revision 7aa383846770374466b1dcb2cefd71bde9acf463)
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 (ata_dma_check_80pin && mode > ATA_UDMA2 &&
474 	    (pci_read_config(parent, 0x50, 2) &
475 				 (ch->unit ? 1 << 11 : 1 << 10))) {
476 	    ata_print_cable(dev, "controller");
477 	    mode = ATA_UDMA2;
478 	}
479 	break;
480 
481     case PR_TX:
482 	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
483 	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
484 	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
485 	    ata_print_cable(dev, "controller");
486 	    mode = ATA_UDMA2;
487 	}
488 	break;
489 
490     case PR_MIO:
491 	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
492 	    (ATA_INL(ctlr->r_res2,
493 		     (ctlr->chip->cfg2 & PR_SX4X ? 0x000c0260 : 0x0260) +
494 		     (ch->unit << 7)) & 0x01000000)) {
495 	    ata_print_cable(dev, "controller");
496 	    mode = ATA_UDMA2;
497 	}
498 	break;
499     }
500 
501 	if (ctlr->chip->cfg1 < PR_TX)
502 	    pci_write_config(parent, 0x60 + (devno << 2),
503 			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
504 	return (mode);
505 }
506 
507 static int
508 ata_promise_tx2_ch_attach(device_t dev)
509 {
510     struct ata_channel *ch = device_get_softc(dev);
511 
512     if (ata_pci_ch_attach(dev))
513 	return ENXIO;
514 
515     ch->hw.status = ata_promise_tx2_status;
516     ch->flags |= ATA_CHECKS_CABLE;
517     return 0;
518 }
519 
520 static int
521 ata_promise_tx2_status(device_t dev)
522 {
523     struct ata_channel *ch = device_get_softc(dev);
524 
525     ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
526     if (ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x20) {
527 	return ata_pci_status(dev);
528     }
529     return 0;
530 }
531 
532 static int
533 ata_promise_mio_ch_attach(device_t dev)
534 {
535     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
536     struct ata_channel *ch = device_get_softc(dev);
537     int offset = (ctlr->chip->cfg2 & PR_SX4X) ? 0x000c0000 : 0;
538     int i;
539 
540     ata_promise_mio_dmainit(dev);
541 
542     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
543 	ch->r_io[i].res = ctlr->r_res2;
544 	ch->r_io[i].offset = offset + 0x0200 + (i << 2) + (ch->unit << 7);
545     }
546     ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
547     ch->r_io[ATA_CONTROL].offset = offset + 0x0238 + (ch->unit << 7);
548     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
549     ata_default_registers(dev);
550     if ((ctlr->chip->cfg2 & (PR_SATA | PR_SATA2)) ||
551 	((ctlr->chip->cfg2 & (PR_CMBO | PR_CMBO2)) && ch->unit < 2)) {
552 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
553 	ch->r_io[ATA_SSTATUS].offset = 0x400 + (ch->unit << 8);
554 	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
555 	ch->r_io[ATA_SERROR].offset = 0x404 + (ch->unit << 8);
556 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
557 	ch->r_io[ATA_SCONTROL].offset = 0x408 + (ch->unit << 8);
558 	ch->flags |= ATA_NO_SLAVE;
559 	ch->flags |= ATA_SATA;
560     }
561     ch->flags |= ATA_USE_16BIT;
562     ch->flags |= ATA_CHECKS_CABLE;
563 
564     ata_generic_hw(dev);
565     if (ctlr->chip->cfg2 & PR_SX4X) {
566 	ch->hw.command = ata_promise_sx4_command;
567     }
568     else {
569 	ch->hw.command = ata_promise_mio_command;
570 	ch->hw.status = ata_promise_mio_status;
571 	ch->hw.softreset = ata_promise_mio_softreset;
572 	ch->hw.pm_read = ata_promise_mio_pm_read;
573 	ch->hw.pm_write = ata_promise_mio_pm_write;
574      }
575     return 0;
576 }
577 
578 static int
579 ata_promise_mio_ch_detach(device_t dev)
580 {
581 
582     ata_dmafini(dev);
583     return (0);
584 }
585 
586 static void
587 ata_promise_mio_intr(void *data)
588 {
589     struct ata_pci_controller *ctlr = data;
590     struct ata_channel *ch;
591     u_int32_t vector;
592     int unit;
593 
594     /*
595      * since reading interrupt status register on early "mio" chips
596      * clears the status bits we cannot read it for each channel later on
597      * in the generic interrupt routine.
598      */
599     vector = ATA_INL(ctlr->r_res2, 0x040);
600     ATA_OUTL(ctlr->r_res2, 0x040, vector);
601     ctlr->chipset_data = (void *)(uintptr_t)vector;
602 
603     for (unit = 0; unit < ctlr->channels; unit++) {
604 	if ((ch = ctlr->interrupt[unit].argument))
605 	    ctlr->interrupt[unit].function(ch);
606     }
607 
608     ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
609 }
610 
611 static int
612 ata_promise_mio_status(device_t dev)
613 {
614     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
615     struct ata_channel *ch = device_get_softc(dev);
616     u_int32_t stat_reg, vector, status;
617 
618     switch (ctlr->chip->cfg2) {
619     case PR_PATA:
620     case PR_CMBO:
621     case PR_SATA:
622 	stat_reg = 0x6c;
623 	break;
624     case PR_CMBO2:
625     case PR_SATA2:
626     default:
627 	stat_reg = 0x60;
628 	break;
629     }
630 
631     /* read and acknowledge interrupt */
632     vector = (uint32_t)(uintptr_t)ctlr->chipset_data;
633 
634     /* read and clear interface status */
635     status = ATA_INL(ctlr->r_res2, stat_reg);
636     ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
637 
638     /* check for and handle disconnect events */
639     if (status & (0x00000001 << ch->unit)) {
640 	if (bootverbose)
641 	    device_printf(dev, "DISCONNECT requested\n");
642 	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
643     }
644 
645     /* check for and handle connect events */
646     if (status & (0x00000010 << ch->unit)) {
647 	if (bootverbose)
648 	    device_printf(dev, "CONNECT requested\n");
649 	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
650     }
651 
652     /* do we have any device action ? */
653     return (vector & (1 << (ch->unit + 1)));
654 }
655 
656 static int
657 ata_promise_mio_command(struct ata_request *request)
658 {
659     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
660     struct ata_channel *ch = device_get_softc(request->parent);
661 
662     u_int32_t *wordp = (u_int32_t *)ch->dma.work;
663 
664     ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
665 
666     if ((ctlr->chip->cfg2 == PR_SATA2) ||
667         ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
668 	/* set portmultiplier port */
669 	ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), request->unit & 0x0f);
670     }
671 
672     /* XXX SOS add ATAPI commands support later */
673     switch (request->u.ata.command) {
674     default:
675 	return ata_generic_command(request);
676 
677     case ATA_READ_DMA:
678     case ATA_READ_DMA48:
679 	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
680 	break;
681 
682     case ATA_WRITE_DMA:
683     case ATA_WRITE_DMA48:
684 	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
685 	break;
686     }
687     wordp[1] = htole32(request->dma->sg_bus);
688     wordp[2] = 0;
689     ata_promise_apkt((u_int8_t*)wordp, request);
690 
691     ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma.work_bus);
692     return 0;
693 }
694 
695 static void
696 ata_promise_mio_reset(device_t dev)
697 {
698     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
699     struct ata_channel *ch = device_get_softc(dev);
700     struct ata_promise_sx4 *hpktp;
701 
702     switch (ctlr->chip->cfg2) {
703     case PR_SX4X:
704 
705 	/* softreset channel ATA module */
706 	hpktp = ctlr->chipset_data;
707 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
708 	ata_udelay(1000);
709 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
710 		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
711 		  ~0x00003f9f) | (ch->unit + 1));
712 
713 	/* softreset HOST module */ /* XXX SOS what about other outstandings */
714 	mtx_lock(&hpktp->mtx);
715 	ATA_OUTL(ctlr->r_res2, 0xc012c,
716 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
717 	DELAY(10);
718 	ATA_OUTL(ctlr->r_res2, 0xc012c,
719 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
720 	hpktp->busy = 0;
721 	mtx_unlock(&hpktp->mtx);
722 	ata_generic_reset(dev);
723 	break;
724 
725     case PR_PATA:
726     case PR_CMBO:
727     case PR_SATA:
728 	if ((ctlr->chip->cfg2 == PR_SATA) ||
729 	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
730 
731 	    /* mask plug/unplug intr */
732 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
733 	}
734 
735 	/* softreset channels ATA module */
736 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
737 	ata_udelay(10000);
738 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
739 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
740 		  ~0x00003f9f) | (ch->unit + 1));
741 
742 	if ((ctlr->chip->cfg2 == PR_SATA) ||
743 	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
744 
745 	    if (ata_sata_phy_reset(dev, -1, 1))
746 		ata_generic_reset(dev);
747 	    else
748 		ch->devices = 0;
749 
750 	    /* reset and enable plug/unplug intr */
751 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
752 	}
753 	else
754 	    ata_generic_reset(dev);
755 	break;
756 
757     case PR_CMBO2:
758     case PR_SATA2:
759 	if ((ctlr->chip->cfg2 == PR_SATA2) ||
760 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
761 	    /* set portmultiplier port */
762 	    //ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
763 
764 	    /* mask plug/unplug intr */
765 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
766 	}
767 
768 	/* softreset channels ATA module */
769 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
770 	ata_udelay(10000);
771 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
772 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
773 		  ~0x00003f9f) | (ch->unit + 1));
774 
775 	if ((ctlr->chip->cfg2 == PR_SATA2) ||
776 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
777 
778 	    /* set PHY mode to "improved" */
779 	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
780 		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
781 		     ~0x00000003) | 0x00000001);
782 
783 	    if (ata_sata_phy_reset(dev, -1, 1)) {
784 		u_int32_t signature = ch->hw.softreset(dev, ATA_PM);
785 
786 		if (1 | bootverbose)
787         	    device_printf(dev, "SIGNATURE: %08x\n", signature);
788 
789 		switch (signature >> 16) {
790 		case 0x0000:
791 		    ch->devices = ATA_ATA_MASTER;
792 		    break;
793 		case 0x9669:
794 		    ch->devices = ATA_PORTMULTIPLIER;
795 		    ata_pm_identify(dev);
796 		    break;
797 		case 0xeb14:
798 		    ch->devices = ATA_ATAPI_MASTER;
799 		    break;
800 		default: /* SOS XXX */
801 		    if (bootverbose)
802 			device_printf(dev,
803 				      "No signature, assuming disk device\n");
804 		    ch->devices = ATA_ATA_MASTER;
805 		}
806 		if (bootverbose)
807 		    device_printf(dev, "promise_mio_reset devices=%08x\n",
808 		    		  ch->devices);
809 
810 	    } else
811 		ch->devices = 0;
812 
813 	    /* reset and enable plug/unplug intr */
814 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
815 
816 	    ///* set portmultiplier port */
817 	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
818 	}
819 	else
820 	    ata_generic_reset(dev);
821 	break;
822 
823     }
824 }
825 
826 static int
827 ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result)
828 {
829     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
830     struct ata_channel *ch = device_get_softc(dev);
831     int timeout = 0;
832 
833     /* set portmultiplier port */
834     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
835 
836     ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
837     ATA_IDX_OUTB(ch, ATA_DRIVE, port);
838 
839     ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_READ_PM);
840 
841     while (timeout < 1000000) {
842 	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
843 	if (!(status & ATA_S_BUSY))
844 	    break;
845 	timeout += 1000;
846 	DELAY(1000);
847     }
848     if (timeout >= 1000000)
849 	return ATA_E_ABORT;
850 
851     *result = ATA_IDX_INB(ch, ATA_COUNT) |
852 	      (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
853 	      (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
854 	      (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
855     return 0;
856 }
857 
858 static int
859 ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t value)
860 {
861     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
862     struct ata_channel *ch = device_get_softc(dev);
863     int timeout = 0;
864 
865     /* set portmultiplier port */
866     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
867 
868     ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
869     ATA_IDX_OUTB(ch, ATA_DRIVE, port);
870     ATA_IDX_OUTB(ch, ATA_COUNT, value & 0xff);
871     ATA_IDX_OUTB(ch, ATA_SECTOR, (value >> 8) & 0xff);
872     ATA_IDX_OUTB(ch, ATA_CYL_LSB, (value >> 16) & 0xff);
873     ATA_IDX_OUTB(ch, ATA_CYL_MSB, (value >> 24) & 0xff);
874 
875     ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_WRITE_PM);
876 
877     while (timeout < 1000000) {
878 	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
879 	if (!(status & ATA_S_BUSY))
880 	    break;
881 	timeout += 1000;
882 	DELAY(1000);
883     }
884     if (timeout >= 1000000)
885 	return ATA_E_ABORT;
886 
887     return ATA_IDX_INB(ch, ATA_ERROR);
888 }
889 
890 /* must be called with ATA channel locked and state_mtx held */
891 static u_int32_t
892 ata_promise_mio_softreset(device_t dev, int port)
893 {
894     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
895     struct ata_channel *ch = device_get_softc(dev);
896     int timeout;
897 
898     /* set portmultiplier port */
899     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), port & 0x0f);
900 
901     /* softreset device on this channel */
902     ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | ATA_DEV(ATA_MASTER));
903     DELAY(10);
904     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS | ATA_A_RESET);
905     ata_udelay(10000);
906     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS);
907     ata_udelay(150000);
908     ATA_IDX_INB(ch, ATA_ERROR);
909 
910     /* wait for BUSY to go inactive */
911     for (timeout = 0; timeout < 100; timeout++) {
912 	u_int8_t err, stat;
913 
914 	err = ATA_IDX_INB(ch, ATA_ERROR);
915 	stat = ATA_IDX_INB(ch, ATA_STATUS);
916 
917 	//if (stat == err && timeout > (stat & ATA_S_BUSY ? 100 : 10))
918 	    //break;
919 
920 	if (!(stat & ATA_S_BUSY)) {
921 	    //if ((err & 0x7f) == ATA_E_ILI) {
922 		return ATA_IDX_INB(ch, ATA_COUNT) |
923 		       (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
924 		       (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
925 		       (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
926 	    //}
927 	    //else if (stat & 0x0f) {
928 		//stat |= ATA_S_BUSY;
929 	    //}
930 	}
931 
932 	if (!(stat & ATA_S_BUSY) || (stat == 0xff && timeout > 10))
933 	    break;
934 	ata_udelay(100000);
935     }
936     return -1;
937 }
938 
939 static void
940 ata_promise_mio_dmainit(device_t dev)
941 {
942     struct ata_channel *ch = device_get_softc(dev);
943 
944     ata_dmainit(dev);
945     /* note start and stop are not used here */
946     ch->dma.setprd = ata_promise_mio_setprd;
947     ch->dma.max_iosize = 65536;
948 }
949 
950 
951 #define MAXLASTSGSIZE (32 * sizeof(u_int32_t))
952 static void
953 ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
954 {
955     struct ata_dmasetprd_args *args = xsc;
956     struct ata_dma_prdentry *prd = args->dmatab;
957     int i;
958 
959     if ((args->error = error))
960 	return;
961 
962     for (i = 0; i < nsegs; i++) {
963 	prd[i].addr = htole32(segs[i].ds_addr);
964 	prd[i].count = htole32(segs[i].ds_len);
965     }
966     if (segs[i - 1].ds_len > MAXLASTSGSIZE) {
967 	//printf("split last SG element of %u\n", segs[i - 1].ds_len);
968 	prd[i - 1].count = htole32(segs[i - 1].ds_len - MAXLASTSGSIZE);
969 	prd[i].count = htole32(MAXLASTSGSIZE);
970 	prd[i].addr = htole32(segs[i - 1].ds_addr +
971 			      (segs[i - 1].ds_len - MAXLASTSGSIZE));
972 	nsegs++;
973 	i++;
974     }
975     prd[i - 1].count |= htole32(ATA_DMA_EOT);
976     KASSERT(nsegs <= ATA_DMA_ENTRIES, ("too many DMA segment entries\n"));
977     args->nsegs = nsegs;
978 }
979 
980 static int
981 ata_promise_mio_setmode(device_t dev, int target, int mode)
982 {
983         struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
984         struct ata_channel *ch = device_get_softc(dev);
985 
986         if ( (ctlr->chip->cfg2 == PR_SATA) ||
987     	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
988 	     (ctlr->chip->cfg2 == PR_SATA2) ||
989 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
990 		mode = ata_sata_setmode(dev, target, mode);
991 	else
992 		mode = ata_promise_setmode(dev, target, mode);
993 	return (mode);
994 }
995 
996 static int
997 ata_promise_mio_getrev(device_t dev, int target)
998 {
999         struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1000         struct ata_channel *ch = device_get_softc(dev);
1001 
1002         if ( (ctlr->chip->cfg2 == PR_SATA) ||
1003     	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1004 	     (ctlr->chip->cfg2 == PR_SATA2) ||
1005 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1006 		return (ata_sata_getrev(dev, target));
1007 	else
1008 		return (0);
1009 }
1010 
1011 static void
1012 ata_promise_sx4_intr(void *data)
1013 {
1014     struct ata_pci_controller *ctlr = data;
1015     struct ata_channel *ch;
1016     u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
1017     int unit;
1018 
1019     for (unit = 0; unit < ctlr->channels; unit++) {
1020 	if (vector & (1 << (unit + 1)))
1021 	    if ((ch = ctlr->interrupt[unit].argument))
1022 		ctlr->interrupt[unit].function(ch);
1023 	if (vector & (1 << (unit + 5)))
1024 	    if ((ch = ctlr->interrupt[unit].argument))
1025 		ata_promise_queue_hpkt(ctlr,
1026 				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1027 					       ATA_PDC_HPKT_OFFSET));
1028 	if (vector & (1 << (unit + 9))) {
1029 	    ata_promise_next_hpkt(ctlr);
1030 	    if ((ch = ctlr->interrupt[unit].argument))
1031 		ctlr->interrupt[unit].function(ch);
1032 	}
1033 	if (vector & (1 << (unit + 13))) {
1034 	    ata_promise_next_hpkt(ctlr);
1035 	    if ((ch = ctlr->interrupt[unit].argument))
1036 		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1037 			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1038 			 ATA_PDC_APKT_OFFSET));
1039 	}
1040     }
1041 }
1042 
1043 static int
1044 ata_promise_sx4_command(struct ata_request *request)
1045 {
1046     device_t gparent = device_get_parent(request->parent);
1047     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1048     struct ata_channel *ch = device_get_softc(request->parent);
1049     struct ata_dma_prdentry *prd;
1050     caddr_t window = rman_get_virtual(ctlr->r_res1);
1051     u_int32_t *wordp;
1052     int i, idx, length = 0;
1053 
1054     /* XXX SOS add ATAPI commands support later */
1055     switch (request->u.ata.command) {
1056 
1057     default:
1058 	return -1;
1059 
1060     case ATA_ATA_IDENTIFY:
1061     case ATA_READ:
1062     case ATA_READ48:
1063     case ATA_READ_MUL:
1064     case ATA_READ_MUL48:
1065     case ATA_WRITE:
1066     case ATA_WRITE48:
1067     case ATA_WRITE_MUL:
1068     case ATA_WRITE_MUL48:
1069 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1070 	return ata_generic_command(request);
1071 
1072     case ATA_SETFEATURES:
1073     case ATA_FLUSHCACHE:
1074     case ATA_FLUSHCACHE48:
1075     case ATA_SLEEP:
1076     case ATA_SET_MULTI:
1077 	wordp = (u_int32_t *)
1078 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1079 	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
1080 	wordp[1] = 0;
1081 	wordp[2] = 0;
1082 	ata_promise_apkt((u_int8_t *)wordp, request);
1083 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1084 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1085 	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1086 		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
1087 	return 0;
1088 
1089     case ATA_READ_DMA:
1090     case ATA_READ_DMA48:
1091     case ATA_WRITE_DMA:
1092     case ATA_WRITE_DMA48:
1093 	prd = request->dma->sg;
1094 	wordp = (u_int32_t *)
1095 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
1096 	i = idx = 0;
1097 	do {
1098 	    wordp[idx++] = prd[i].addr;
1099 	    wordp[idx++] = prd[i].count;
1100 	    length += (prd[i].count & ~ATA_DMA_EOT);
1101 	} while (!(prd[i++].count & ATA_DMA_EOT));
1102 
1103 	wordp = (u_int32_t *)
1104 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
1105 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1106 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1107 
1108 	wordp = (u_int32_t *)
1109 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
1110 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1111 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1112 
1113 	wordp = (u_int32_t *)
1114 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
1115 	if (request->flags & ATA_R_READ)
1116 	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
1117 	if (request->flags & ATA_R_WRITE)
1118 	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
1119 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
1120 	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
1121 	wordp[3] = 0;
1122 
1123 	wordp = (u_int32_t *)
1124 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1125 	if (request->flags & ATA_R_READ)
1126 	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
1127 	if (request->flags & ATA_R_WRITE)
1128 	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
1129 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
1130 	wordp[2] = 0;
1131 	ata_promise_apkt((u_int8_t *)wordp, request);
1132 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1133 
1134 	if (request->flags & ATA_R_READ) {
1135 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
1136 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
1137 	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1138 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
1139 	}
1140 	if (request->flags & ATA_R_WRITE) {
1141 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
1142 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
1143 	    ata_promise_queue_hpkt(ctlr,
1144 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
1145 	}
1146 	return 0;
1147     }
1148 }
1149 
1150 static int
1151 ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
1152 {
1153     int i = 12;
1154 
1155     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
1156     bytep[i++] = ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit);
1157     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
1158     bytep[i++] = ATA_A_4BIT;
1159 
1160     if (request->flags & ATA_R_48BIT) {
1161 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1162 	bytep[i++] = request->u.ata.feature >> 8;
1163 	bytep[i++] = request->u.ata.feature;
1164 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
1165 	bytep[i++] = request->u.ata.count >> 8;
1166 	bytep[i++] = request->u.ata.count;
1167 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1168 	bytep[i++] = request->u.ata.lba >> 24;
1169 	bytep[i++] = request->u.ata.lba;
1170 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1171 	bytep[i++] = request->u.ata.lba >> 32;
1172 	bytep[i++] = request->u.ata.lba >> 8;
1173 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1174 	bytep[i++] = request->u.ata.lba >> 40;
1175 	bytep[i++] = request->u.ata.lba >> 16;
1176 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1177 	bytep[i++] = ATA_D_LBA | ATA_DEV(request->unit);
1178     }
1179     else {
1180 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1181 	bytep[i++] = request->u.ata.feature;
1182 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
1183 	bytep[i++] = request->u.ata.count;
1184 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1185 	bytep[i++] = request->u.ata.lba;
1186 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1187 	bytep[i++] = request->u.ata.lba >> 8;
1188 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1189 	bytep[i++] = request->u.ata.lba >> 16;
1190 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1191 	bytep[i++] = ATA_D_LBA | ATA_D_IBM | ATA_DEV(request->unit) |
1192 		     ((request->u.ata.lba >> 24)&0xf);
1193     }
1194     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
1195     bytep[i++] = request->u.ata.command;
1196     return i;
1197 }
1198 
1199 static void
1200 ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
1201 {
1202     struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1203 
1204     mtx_lock(&hpktp->mtx);
1205     if (hpktp->busy) {
1206 	struct host_packet *hp =
1207 	    malloc(sizeof(struct host_packet), M_TEMP, M_NOWAIT | M_ZERO);
1208 	hp->addr = hpkt;
1209 	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
1210     }
1211     else {
1212 	hpktp->busy = 1;
1213 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
1214     }
1215     mtx_unlock(&hpktp->mtx);
1216 }
1217 
1218 static void
1219 ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
1220 {
1221     struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1222     struct host_packet *hp;
1223 
1224     mtx_lock(&hpktp->mtx);
1225     if ((hp = TAILQ_FIRST(&hpktp->queue))) {
1226 	TAILQ_REMOVE(&hpktp->queue, hp, chain);
1227 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
1228 	free(hp, M_TEMP);
1229     }
1230     else
1231 	hpktp->busy = 0;
1232     mtx_unlock(&hpktp->mtx);
1233 }
1234 
1235 ATA_DECLARE_DRIVER(ata_promise);
1236