xref: /freebsd/sys/dev/ata/chipsets/ata-promise.c (revision b3aaa0cc21c63d388230c7ef2a80abd631ff20d5)
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 void ata_promise_setmode(device_t dev, 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 void ata_promise_mio_setmode(device_t dev, int mode);
76 static void ata_promise_sx4_intr(void *data);
77 static int ata_promise_sx4_command(struct ata_request *request);
78 static int ata_promise_apkt(u_int8_t *bytep, struct ata_request *request);
79 static void ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt);
80 static void ata_promise_next_hpkt(struct ata_pci_controller *ctlr);
81 
82 /* misc defines */
83 #define PR_OLD		0
84 #define PR_NEW		1
85 #define PR_TX		2
86 #define PR_MIO		3
87 #define PR_TX4		0x01
88 #define PR_SX4X		0x02
89 #define PR_SX6K		0x04
90 #define PR_PATA		0x08
91 #define PR_CMBO		0x10
92 #define PR_CMBO2	0x20
93 #define PR_SATA		0x40
94 #define PR_SATA2	0x80
95 
96 
97 /*
98  * Promise chipset support functions
99  */
100 #define ATA_PDC_APKT_OFFSET     0x00000010
101 #define ATA_PDC_HPKT_OFFSET     0x00000040
102 #define ATA_PDC_ASG_OFFSET      0x00000080
103 #define ATA_PDC_LSG_OFFSET      0x000000c0
104 #define ATA_PDC_HSG_OFFSET      0x00000100
105 #define ATA_PDC_CHN_OFFSET      0x00000400
106 #define ATA_PDC_BUF_BASE        0x00400000
107 #define ATA_PDC_BUF_OFFSET      0x00100000
108 #define ATA_PDC_MAX_HPKT        8
109 #define ATA_PDC_WRITE_REG       0x00
110 #define ATA_PDC_WRITE_CTL       0x0e
111 #define ATA_PDC_WRITE_END       0x08
112 #define ATA_PDC_WAIT_NBUSY      0x10
113 #define ATA_PDC_WAIT_READY      0x18
114 #define ATA_PDC_1B              0x20
115 #define ATA_PDC_2B              0x40
116 
117 struct host_packet {
118     u_int32_t                   addr;
119     TAILQ_ENTRY(host_packet)    chain;
120 };
121 
122 struct ata_promise_sx4 {
123     struct mtx                  mtx;
124     TAILQ_HEAD(, host_packet)   queue;
125     int                         busy;
126 };
127 
128 static int
129 ata_promise_probe(device_t dev)
130 {
131     struct ata_pci_controller *ctlr = device_get_softc(dev);
132     struct ata_chip_id *idx;
133     static struct ata_chip_id ids[] =
134     {{ ATA_PDC20246,  0, PR_OLD, 0x00,     ATA_UDMA2, "PDC20246" },
135      { ATA_PDC20262,  0, PR_NEW, 0x00,     ATA_UDMA4, "PDC20262" },
136      { ATA_PDC20263,  0, PR_NEW, 0x00,     ATA_UDMA4, "PDC20263" },
137      { ATA_PDC20265,  0, PR_NEW, 0x00,     ATA_UDMA5, "PDC20265" },
138      { ATA_PDC20267,  0, PR_NEW, 0x00,     ATA_UDMA5, "PDC20267" },
139      { ATA_PDC20268,  0, PR_TX,  PR_TX4,   ATA_UDMA5, "PDC20268" },
140      { ATA_PDC20269,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20269" },
141      { ATA_PDC20270,  0, PR_TX,  PR_TX4,   ATA_UDMA5, "PDC20270" },
142      { ATA_PDC20271,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20271" },
143      { ATA_PDC20275,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20275" },
144      { ATA_PDC20276,  0, PR_TX,  PR_SX6K,  ATA_UDMA6, "PDC20276" },
145      { ATA_PDC20277,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20277" },
146      { ATA_PDC20318,  0, PR_MIO, PR_SATA,  ATA_SA150, "PDC20318" },
147      { ATA_PDC20319,  0, PR_MIO, PR_SATA,  ATA_SA150, "PDC20319" },
148      { ATA_PDC20371,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20371" },
149      { ATA_PDC20375,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20375" },
150      { ATA_PDC20376,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20376" },
151      { ATA_PDC20377,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20377" },
152      { ATA_PDC20378,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20378" },
153      { ATA_PDC20379,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20379" },
154      { ATA_PDC20571,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20571" },
155      { ATA_PDC20575,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20575" },
156      { ATA_PDC20579,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20579" },
157      { ATA_PDC20771,  0, PR_MIO, PR_CMBO2, ATA_SA300, "PDC20771" },
158      { ATA_PDC40775,  0, PR_MIO, PR_CMBO2, ATA_SA300, "PDC40775" },
159      { ATA_PDC20617,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20617" },
160      { ATA_PDC20618,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20618" },
161      { ATA_PDC20619,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20619" },
162      { ATA_PDC20620,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20620" },
163      { ATA_PDC20621,  0, PR_MIO, PR_SX4X,  ATA_UDMA5, "PDC20621" },
164      { ATA_PDC20622,  0, PR_MIO, PR_SX4X,  ATA_SA150, "PDC20622" },
165      { ATA_PDC40518,  0, PR_MIO, PR_SATA2, ATA_SA150, "PDC40518" },
166      { ATA_PDC40519,  0, PR_MIO, PR_SATA2, ATA_SA150, "PDC40519" },
167      { ATA_PDC40718,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40718" },
168      { ATA_PDC40719,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40719" },
169      { ATA_PDC40779,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40779" },
170      { 0, 0, 0, 0, 0, 0}};
171     char buffer[64];
172     uintptr_t devid = 0;
173 
174     if (pci_get_vendor(dev) != ATA_PROMISE_ID)
175 	return ENXIO;
176 
177     if (!(idx = ata_match_chip(dev, ids)))
178 	return ENXIO;
179 
180     /* if we are on a SuperTrak SX6000 dont attach */
181     if ((idx->cfg2 & PR_SX6K) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
182 	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
183 		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
184 	devid == ATA_I960RM)
185 	return ENXIO;
186 
187     strcpy(buffer, "Promise ");
188     strcat(buffer, idx->text);
189 
190     /* if we are on a FastTrak TX4, adjust the interrupt resource */
191     if ((idx->cfg2 & PR_TX4) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
192 	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
193 		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
194 	((devid == ATA_DEC_21150) || (devid == ATA_DEC_21150_1))) {
195 	static long start = 0, end = 0;
196 
197 	if (pci_get_slot(dev) == 1) {
198 	    bus_get_resource(dev, SYS_RES_IRQ, 0, &start, &end);
199 	    strcat(buffer, " (channel 0+1)");
200 	}
201 	else if (pci_get_slot(dev) == 2 && start && end) {
202 	    bus_set_resource(dev, SYS_RES_IRQ, 0, start, end);
203 	    strcat(buffer, " (channel 2+3)");
204 	}
205 	else {
206 	    start = end = 0;
207 	}
208     }
209     sprintf(buffer, "%s %s controller", buffer, ata_mode2str(idx->max_dma));
210     device_set_desc_copy(dev, buffer);
211     ctlr->chip = idx;
212     ctlr->chipinit = ata_promise_chipinit;
213     return 0;
214 }
215 
216 static int
217 ata_promise_chipinit(device_t dev)
218 {
219     struct ata_pci_controller *ctlr = device_get_softc(dev);
220     int fake_reg, stat_reg;
221 
222     if (ata_setup_interrupt(dev, ata_generic_intr))
223 	return ENXIO;
224 
225     switch  (ctlr->chip->cfg1) {
226     case PR_NEW:
227 	/* setup clocks */
228 	ATA_OUTB(ctlr->r_res1, 0x11, ATA_INB(ctlr->r_res1, 0x11) | 0x0a);
229 	/* FALLTHROUGH */
230 
231     case PR_OLD:
232 	/* enable burst mode */
233 	ATA_OUTB(ctlr->r_res1, 0x1f, ATA_INB(ctlr->r_res1, 0x1f) | 0x01);
234 	ctlr->ch_attach = ata_promise_ch_attach;
235 	ctlr->ch_detach = ata_pci_ch_detach;
236 	ctlr->setmode = ata_promise_setmode;
237 	return 0;
238 
239     case PR_TX:
240 	ctlr->ch_attach = ata_promise_tx2_ch_attach;
241 	ctlr->ch_detach = ata_pci_ch_detach;
242 	ctlr->setmode = ata_promise_setmode;
243 	return 0;
244 
245     case PR_MIO:
246 	ctlr->r_type1 = SYS_RES_MEMORY;
247 	ctlr->r_rid1 = PCIR_BAR(4);
248 	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
249 						    &ctlr->r_rid1, RF_ACTIVE)))
250 	    goto failnfree;
251 
252 	ctlr->r_type2 = SYS_RES_MEMORY;
253 	ctlr->r_rid2 = PCIR_BAR(3);
254 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
255 						    &ctlr->r_rid2, RF_ACTIVE)))
256 	    goto failnfree;
257 
258 	if (ctlr->chip->cfg2 == PR_SX4X) {
259 	    struct ata_promise_sx4 *hpkt;
260 	    u_int32_t dimm = ATA_INL(ctlr->r_res2, 0x000c0080);
261 
262 	    if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
263 		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
264 			       ata_promise_sx4_intr, ctlr, &ctlr->handle)) {
265 		device_printf(dev, "unable to setup interrupt\n");
266 		goto failnfree;
267 	    }
268 
269 	    /* print info about cache memory */
270 	    device_printf(dev, "DIMM size %dMB @ 0x%08x%s\n",
271 			  (((dimm >> 16) & 0xff)-((dimm >> 24) & 0xff)+1) << 4,
272 			  ((dimm >> 24) & 0xff),
273 			  ATA_INL(ctlr->r_res2, 0x000c0088) & (1<<16) ?
274 			  " ECC enabled" : "" );
275 
276 	    /* adjust cache memory parameters */
277 	    ATA_OUTL(ctlr->r_res2, 0x000c000c,
278 		     (ATA_INL(ctlr->r_res2, 0x000c000c) & 0xffff0000));
279 
280 	    /* setup host packet controls */
281 	    hpkt = malloc(sizeof(struct ata_promise_sx4),
282 			  M_TEMP, M_NOWAIT | M_ZERO);
283 	    mtx_init(&hpkt->mtx, "ATA promise HPKT lock", NULL, MTX_DEF);
284 	    TAILQ_INIT(&hpkt->queue);
285 	    hpkt->busy = 0;
286 	    device_set_ivars(dev, 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 	    fake_reg = 0x60;
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 	    fake_reg = 0x54;
326 	    stat_reg = 0x60;
327 	    break;
328 	}
329 
330 	/* prime fake interrupt register */
331 	ATA_OUTL(ctlr->r_res2, fake_reg, 0xffffffff);
332 
333 	/* clear SATA status and unmask interrupts */
334 	ATA_OUTL(ctlr->r_res2, stat_reg, 0x000000ff);
335 
336 	/* enable "long burst length" on gen2 chips */
337 	if ((ctlr->chip->cfg2 == PR_SATA2) || (ctlr->chip->cfg2 == PR_CMBO2))
338 	    ATA_OUTL(ctlr->r_res2, 0x44, ATA_INL(ctlr->r_res2, 0x44) | 0x2000);
339 
340 	ctlr->ch_attach = ata_promise_mio_ch_attach;
341 	ctlr->ch_detach = ata_promise_mio_ch_detach;
342 	ctlr->reset = ata_promise_mio_reset;
343 	ctlr->setmode = ata_promise_mio_setmode;
344 
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     return 0;
373 }
374 
375 static int
376 ata_promise_status(device_t dev)
377 {
378     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
379     struct ata_channel *ch = device_get_softc(dev);
380 
381     if (ATA_INL(ctlr->r_res1, 0x1c) & (ch->unit ? 0x00004000 : 0x00000400)) {
382 	return ata_pci_status(dev);
383     }
384     return 0;
385 }
386 
387 static int
388 ata_promise_dmastart(struct ata_request *request)
389 {
390     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
391     struct ata_channel *ch = device_get_softc(request->parent);
392     struct ata_device *atadev  = device_get_softc(request->dev);
393 
394     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
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(GRANDPARENT(request->dev));
415     struct ata_channel *ch = device_get_softc(request->parent);
416     struct ata_device *atadev  = device_get_softc(request->dev);
417     int error;
418 
419     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
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 void
444 ata_promise_setmode(device_t dev, int mode)
445 {
446     device_t gparent = GRANDPARENT(dev);
447     struct ata_pci_controller *ctlr = device_get_softc(gparent);
448     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
449     struct ata_device *atadev = device_get_softc(dev);
450     int devno = (ch->unit << 1) + atadev->unit;
451     int error;
452     u_int32_t timings[][2] = {
453     /*    PR_OLD      PR_NEW               mode */
454 	{ 0x004ff329, 0x004fff2f },     /* PIO 0 */
455 	{ 0x004fec25, 0x004ff82a },     /* PIO 1 */
456 	{ 0x004fe823, 0x004ff026 },     /* PIO 2 */
457 	{ 0x004fe622, 0x004fec24 },     /* PIO 3 */
458 	{ 0x004fe421, 0x004fe822 },     /* PIO 4 */
459 	{ 0x004567f3, 0x004acef6 },     /* MWDMA 0 */
460 	{ 0x004467f3, 0x0048cef6 },     /* MWDMA 1 */
461 	{ 0x004367f3, 0x0046cef6 },     /* MWDMA 2 */
462 	{ 0x004367f3, 0x0046cef6 },     /* UDMA 0 */
463 	{ 0x004247f3, 0x00448ef6 },     /* UDMA 1 */
464 	{ 0x004127f3, 0x00436ef6 },     /* UDMA 2 */
465 	{ 0,          0x00424ef6 },     /* UDMA 3 */
466 	{ 0,          0x004127f3 },     /* UDMA 4 */
467 	{ 0,          0x004127f3 }      /* UDMA 5 */
468     };
469 
470     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
471 
472     switch (ctlr->chip->cfg1) {
473     case PR_OLD:
474     case PR_NEW:
475 	if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x50, 2) &
476 				 (ch->unit ? 1 << 11 : 1 << 10))) {
477 	    ata_print_cable(dev, "controller");
478 	    mode = ATA_UDMA2;
479 	}
480 	if (ata_atapi(dev) && mode > ATA_PIO_MAX)
481 	    mode = ata_limit_mode(dev, mode, ATA_PIO_MAX);
482 	break;
483 
484     case PR_TX:
485 	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
486 	if (mode > ATA_UDMA2 &&
487 	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
488 	    ata_print_cable(dev, "controller");
489 	    mode = ATA_UDMA2;
490 	}
491 	break;
492 
493     case PR_MIO:
494 	if (mode > ATA_UDMA2 &&
495 	    (ATA_INL(ctlr->r_res2,
496 		     (ctlr->chip->cfg2 & PR_SX4X ? 0x000c0260 : 0x0260) +
497 		     (ch->unit << 7)) & 0x01000000)) {
498 	    ata_print_cable(dev, "controller");
499 	    mode = ATA_UDMA2;
500 	}
501 	break;
502     }
503 
504     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
505 
506     if (bootverbose)
507 	device_printf(dev, "%ssetting %s on %s chip\n",
508 		     (error) ? "FAILURE " : "",
509 		     ata_mode2str(mode), ctlr->chip->text);
510     if (!error) {
511 	if (ctlr->chip->cfg1 < PR_TX)
512 	    pci_write_config(gparent, 0x60 + (devno << 2),
513 			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
514 	atadev->mode = mode;
515     }
516     return;
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     return 0;
529 }
530 
531 static int
532 ata_promise_tx2_status(device_t dev)
533 {
534     struct ata_channel *ch = device_get_softc(dev);
535 
536     ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
537     if (ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x20) {
538 	return ata_pci_status(dev);
539     }
540     return 0;
541 }
542 
543 static int
544 ata_promise_mio_ch_attach(device_t dev)
545 {
546     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
547     struct ata_channel *ch = device_get_softc(dev);
548     int offset = (ctlr->chip->cfg2 & PR_SX4X) ? 0x000c0000 : 0;
549     int i;
550 
551     ata_promise_mio_dmainit(dev);
552 
553     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
554 	ch->r_io[i].res = ctlr->r_res2;
555 	ch->r_io[i].offset = offset + 0x0200 + (i << 2) + (ch->unit << 7);
556     }
557     ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
558     ch->r_io[ATA_CONTROL].offset = offset + 0x0238 + (ch->unit << 7);
559     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
560     ata_default_registers(dev);
561     if ((ctlr->chip->cfg2 & (PR_SATA | PR_SATA2)) ||
562 	((ctlr->chip->cfg2 & (PR_CMBO | PR_CMBO2)) && ch->unit < 2)) {
563 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
564 	ch->r_io[ATA_SSTATUS].offset = 0x400 + (ch->unit << 8);
565 	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
566 	ch->r_io[ATA_SERROR].offset = 0x404 + (ch->unit << 8);
567 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
568 	ch->r_io[ATA_SCONTROL].offset = 0x408 + (ch->unit << 8);
569 	ch->flags |= ATA_NO_SLAVE;
570     }
571     ch->flags |= ATA_USE_16BIT;
572 
573     ata_generic_hw(dev);
574     if (ctlr->chip->cfg2 & PR_SX4X) {
575 	ch->hw.command = ata_promise_sx4_command;
576     }
577     else {
578 	ch->hw.command = ata_promise_mio_command;
579 	ch->hw.status = ata_promise_mio_status;
580 	ch->hw.softreset = ata_promise_mio_softreset;
581 	ch->hw.pm_read = ata_promise_mio_pm_read;
582 	ch->hw.pm_write = ata_promise_mio_pm_write;
583      }
584     return 0;
585 }
586 
587 static int
588 ata_promise_mio_ch_detach(device_t dev)
589 {
590 
591     ata_dmafini(dev);
592     return (0);
593 }
594 
595 static void
596 ata_promise_mio_intr(void *data)
597 {
598     struct ata_pci_controller *ctlr = data;
599     struct ata_channel *ch;
600     u_int32_t vector;
601     int unit, fake_reg;
602 
603     switch (ctlr->chip->cfg2) {
604     case PR_PATA:
605     case PR_CMBO:
606     case PR_SATA:
607 	fake_reg = 0x60;
608 	break;
609     case PR_CMBO2:
610     case PR_SATA2:
611     default:
612 	fake_reg = 0x54;
613 	break;
614     }
615 
616     /*
617      * since reading interrupt status register on early "mio" chips
618      * clears the status bits we cannot read it for each channel later on
619      * in the generic interrupt routine.
620      * store the bits in an unused register in the chip so we can read
621      * it from there safely to get around this "feature".
622      */
623     vector = ATA_INL(ctlr->r_res2, 0x040);
624     ATA_OUTL(ctlr->r_res2, 0x040, vector);
625     ATA_OUTL(ctlr->r_res2, fake_reg, vector);
626 
627     for (unit = 0; unit < ctlr->channels; unit++) {
628 	if ((ch = ctlr->interrupt[unit].argument))
629 	    ctlr->interrupt[unit].function(ch);
630     }
631 
632     ATA_OUTL(ctlr->r_res2, fake_reg, 0xffffffff);
633 }
634 
635 static int
636 ata_promise_mio_status(device_t dev)
637 {
638     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
639     struct ata_channel *ch = device_get_softc(dev);
640     u_int32_t fake_reg, stat_reg, vector, status;
641 
642     switch (ctlr->chip->cfg2) {
643     case PR_PATA:
644     case PR_CMBO:
645     case PR_SATA:
646 	fake_reg = 0x60;
647 	stat_reg = 0x6c;
648 	break;
649     case PR_CMBO2:
650     case PR_SATA2:
651     default:
652 	fake_reg = 0x54;
653 	stat_reg = 0x60;
654 	break;
655     }
656 
657     /* read and acknowledge interrupt */
658     vector = ATA_INL(ctlr->r_res2, fake_reg);
659 
660     /* read and clear interface status */
661     status = ATA_INL(ctlr->r_res2, stat_reg);
662     ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
663 
664     /* check for and handle disconnect events */
665     if (status & (0x00000001 << ch->unit)) {
666 	if (bootverbose)
667 	    device_printf(dev, "DISCONNECT requested\n");
668 	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
669     }
670 
671     /* check for and handle connect events */
672     if (status & (0x00000010 << ch->unit)) {
673 	if (bootverbose)
674 	    device_printf(dev, "CONNECT requested\n");
675 	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
676     }
677 
678     /* do we have any device action ? */
679     return (vector & (1 << (ch->unit + 1)));
680 }
681 
682 static int
683 ata_promise_mio_command(struct ata_request *request)
684 {
685     struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
686     struct ata_channel *ch = device_get_softc(request->parent);
687     struct ata_device *atadev = device_get_softc(request->dev);
688 
689     u_int32_t *wordp = (u_int32_t *)ch->dma.work;
690 
691     ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
692 
693     /* set portmultiplier port */
694     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), atadev->unit & 0x0f);
695 
696     /* XXX SOS add ATAPI commands support later */
697     switch (request->u.ata.command) {
698     default:
699 	return ata_generic_command(request);
700 
701     case ATA_READ_DMA:
702     case ATA_READ_DMA48:
703 	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
704 	break;
705 
706     case ATA_WRITE_DMA:
707     case ATA_WRITE_DMA48:
708 	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
709 	break;
710     }
711     wordp[1] = htole32(request->dma->sg_bus);
712     wordp[2] = 0;
713     ata_promise_apkt((u_int8_t*)wordp, request);
714 
715     ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma.work_bus);
716     return 0;
717 }
718 
719 static void
720 ata_promise_mio_reset(device_t dev)
721 {
722     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
723     struct ata_channel *ch = device_get_softc(dev);
724     struct ata_promise_sx4 *hpktp;
725 
726     switch (ctlr->chip->cfg2) {
727     case PR_SX4X:
728 
729 	/* softreset channel ATA module */
730 	hpktp = device_get_ivars(ctlr->dev);
731 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
732 	ata_udelay(1000);
733 	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
734 		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
735 		  ~0x00003f9f) | (ch->unit + 1));
736 
737 	/* softreset HOST module */ /* XXX SOS what about other outstandings */
738 	mtx_lock(&hpktp->mtx);
739 	ATA_OUTL(ctlr->r_res2, 0xc012c,
740 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
741 	DELAY(10);
742 	ATA_OUTL(ctlr->r_res2, 0xc012c,
743 		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
744 	hpktp->busy = 0;
745 	mtx_unlock(&hpktp->mtx);
746 	ata_generic_reset(dev);
747 	break;
748 
749     case PR_PATA:
750     case PR_CMBO:
751     case PR_SATA:
752 	if ((ctlr->chip->cfg2 == PR_SATA) ||
753 	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
754 
755 	    /* mask plug/unplug intr */
756 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
757 	}
758 
759 	/* softreset channels ATA module */
760 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
761 	ata_udelay(10000);
762 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
763 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
764 		  ~0x00003f9f) | (ch->unit + 1));
765 
766 	if ((ctlr->chip->cfg2 == PR_SATA) ||
767 	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
768 
769 	    if (ata_sata_phy_reset(dev))
770 		ata_generic_reset(dev);
771 
772 	    /* reset and enable plug/unplug intr */
773 	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
774 	}
775 	else
776 	    ata_generic_reset(dev);
777 	break;
778 
779     case PR_CMBO2:
780     case PR_SATA2:
781 	if ((ctlr->chip->cfg2 == PR_SATA2) ||
782 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
783 	    /* set portmultiplier port */
784 	    //ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
785 
786 	    /* mask plug/unplug intr */
787 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
788 	}
789 
790 	/* softreset channels ATA module */
791 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
792 	ata_udelay(10000);
793 	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
794 		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
795 		  ~0x00003f9f) | (ch->unit + 1));
796 
797 	if ((ctlr->chip->cfg2 == PR_SATA2) ||
798 	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
799 
800 	    /* set PHY mode to "improved" */
801 	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
802 		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
803 		     ~0x00000003) | 0x00000001);
804 
805 	    if (ata_sata_phy_reset(dev)) {
806 		u_int32_t signature = ch->hw.softreset(dev, ATA_PM);
807 
808 		if (1 | bootverbose)
809         	    device_printf(dev, "SIGNATURE: %08x\n", signature);
810 
811 		switch (signature >> 16) {
812 		case 0x0000:
813 		    ch->devices = ATA_ATA_MASTER;
814 		    break;
815 		case 0x9669:
816 		    ch->devices = ATA_PORTMULTIPLIER;
817 		    ata_pm_identify(dev);
818 		    break;
819 		case 0xeb14:
820 		    ch->devices = ATA_ATAPI_MASTER;
821 		    break;
822 		default: /* SOS XXX */
823 		    if (bootverbose)
824 			device_printf(dev,
825 				      "No signature, assuming disk device\n");
826 		    ch->devices = ATA_ATA_MASTER;
827 		}
828 		if (bootverbose)
829 		    device_printf(dev, "promise_mio_reset devices=%08x\n",
830 		    		  ch->devices);
831 
832 	    }
833 
834 	    /* reset and enable plug/unplug intr */
835 	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
836 
837 	    ///* set portmultiplier port */
838 	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
839 	}
840 	else
841 	    ata_generic_reset(dev);
842 	break;
843 
844     }
845 }
846 
847 static int
848 ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result)
849 {
850     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
851     struct ata_channel *ch = device_get_softc(dev);
852     int timeout = 0;
853 
854     /* set portmultiplier port */
855     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
856 
857     ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
858     ATA_IDX_OUTB(ch, ATA_DRIVE, port);
859 
860     ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_READ_PM);
861 
862     while (timeout < 1000000) {
863 	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
864 	if (!(status & ATA_S_BUSY))
865 	    break;
866 	timeout += 1000;
867 	DELAY(1000);
868     }
869     if (timeout >= 1000000)
870 	return ATA_E_ABORT;
871 
872     *result = ATA_IDX_INB(ch, ATA_COUNT) |
873 	      (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
874 	      (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
875 	      (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
876     return 0;
877 }
878 
879 static int
880 ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t value)
881 {
882     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
883     struct ata_channel *ch = device_get_softc(dev);
884     int timeout = 0;
885 
886     /* set portmultiplier port */
887     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
888 
889     ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
890     ATA_IDX_OUTB(ch, ATA_DRIVE, port);
891     ATA_IDX_OUTB(ch, ATA_COUNT, value & 0xff);
892     ATA_IDX_OUTB(ch, ATA_SECTOR, (value >> 8) & 0xff);
893     ATA_IDX_OUTB(ch, ATA_CYL_LSB, (value >> 16) & 0xff);
894     ATA_IDX_OUTB(ch, ATA_CYL_MSB, (value >> 24) & 0xff);
895 
896     ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_WRITE_PM);
897 
898     while (timeout < 1000000) {
899 	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
900 	if (!(status & ATA_S_BUSY))
901 	    break;
902 	timeout += 1000;
903 	DELAY(1000);
904     }
905     if (timeout >= 1000000)
906 	return ATA_E_ABORT;
907 
908     return ATA_IDX_INB(ch, ATA_ERROR);
909 }
910 
911 /* must be called with ATA channel locked and state_mtx held */
912 static u_int32_t
913 ata_promise_mio_softreset(device_t dev, int port)
914 {
915     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
916     struct ata_channel *ch = device_get_softc(dev);
917     int timeout;
918 
919     /* set portmultiplier port */
920     ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), port & 0x0f);
921 
922     /* softreset device on this channel */
923     ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | ATA_DEV(ATA_MASTER));
924     DELAY(10);
925     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS | ATA_A_RESET);
926     ata_udelay(10000);
927     ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS);
928     ata_udelay(150000);
929     ATA_IDX_INB(ch, ATA_ERROR);
930 
931     /* wait for BUSY to go inactive */
932     for (timeout = 0; timeout < 100; timeout++) {
933 	u_int8_t err, stat;
934 
935 	err = ATA_IDX_INB(ch, ATA_ERROR);
936 	stat = ATA_IDX_INB(ch, ATA_STATUS);
937 
938 	//if (stat == err && timeout > (stat & ATA_S_BUSY ? 100 : 10))
939 	    //break;
940 
941 	if (!(stat & ATA_S_BUSY)) {
942 	    //if ((err & 0x7f) == ATA_E_ILI) {
943 		return ATA_IDX_INB(ch, ATA_COUNT) |
944 		       (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
945 		       (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
946 		       (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
947 	    //}
948 	    //else if (stat & 0x0f) {
949 		//stat |= ATA_S_BUSY;
950 	    //}
951 	}
952 
953 	if (!(stat & ATA_S_BUSY) || (stat == 0xff && timeout > 10))
954 	    break;
955 	ata_udelay(100000);
956     }
957     return -1;
958 }
959 
960 static void
961 ata_promise_mio_dmainit(device_t dev)
962 {
963     struct ata_channel *ch = device_get_softc(dev);
964 
965     ata_dmainit(dev);
966     /* note start and stop are not used here */
967     ch->dma.setprd = ata_promise_mio_setprd;
968 }
969 
970 
971 #define MAXLASTSGSIZE (32 * sizeof(u_int32_t))
972 static void
973 ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
974 {
975     struct ata_dmasetprd_args *args = xsc;
976     struct ata_dma_prdentry *prd = args->dmatab;
977     int i;
978 
979     if ((args->error = error))
980 	return;
981 
982     for (i = 0; i < nsegs; i++) {
983 	prd[i].addr = htole32(segs[i].ds_addr);
984 	prd[i].count = htole32(segs[i].ds_len);
985     }
986     if (segs[i - 1].ds_len > MAXLASTSGSIZE) {
987 	//printf("split last SG element of %u\n", segs[i - 1].ds_len);
988 	prd[i - 1].count = htole32(segs[i - 1].ds_len - MAXLASTSGSIZE);
989 	prd[i].count = htole32(MAXLASTSGSIZE);
990 	prd[i].addr = htole32(segs[i - 1].ds_addr +
991 			      (segs[i - 1].ds_len - MAXLASTSGSIZE));
992 	nsegs++;
993 	i++;
994     }
995     prd[i - 1].count |= htole32(ATA_DMA_EOT);
996     KASSERT(nsegs <= ATA_DMA_ENTRIES, ("too many DMA segment entries\n"));
997     args->nsegs = nsegs;
998 }
999 
1000 static void
1001 ata_promise_mio_setmode(device_t dev, int mode)
1002 {
1003     device_t gparent = GRANDPARENT(dev);
1004     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1005     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1006 
1007     if ( (ctlr->chip->cfg2 == PR_SATA) ||
1008 	((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1009 	(ctlr->chip->cfg2 == PR_SATA2) ||
1010 	((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1011 	ata_sata_setmode(dev, mode);
1012     else
1013 	ata_promise_setmode(dev, mode);
1014 }
1015 
1016 static void
1017 ata_promise_sx4_intr(void *data)
1018 {
1019     struct ata_pci_controller *ctlr = data;
1020     struct ata_channel *ch;
1021     u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
1022     int unit;
1023 
1024     for (unit = 0; unit < ctlr->channels; unit++) {
1025 	if (vector & (1 << (unit + 1)))
1026 	    if ((ch = ctlr->interrupt[unit].argument))
1027 		ctlr->interrupt[unit].function(ch);
1028 	if (vector & (1 << (unit + 5)))
1029 	    if ((ch = ctlr->interrupt[unit].argument))
1030 		ata_promise_queue_hpkt(ctlr,
1031 				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1032 					       ATA_PDC_HPKT_OFFSET));
1033 	if (vector & (1 << (unit + 9))) {
1034 	    ata_promise_next_hpkt(ctlr);
1035 	    if ((ch = ctlr->interrupt[unit].argument))
1036 		ctlr->interrupt[unit].function(ch);
1037 	}
1038 	if (vector & (1 << (unit + 13))) {
1039 	    ata_promise_next_hpkt(ctlr);
1040 	    if ((ch = ctlr->interrupt[unit].argument))
1041 		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1042 			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1043 			 ATA_PDC_APKT_OFFSET));
1044 	}
1045     }
1046 }
1047 
1048 static int
1049 ata_promise_sx4_command(struct ata_request *request)
1050 {
1051     device_t gparent = GRANDPARENT(request->dev);
1052     struct ata_pci_controller *ctlr = device_get_softc(gparent);
1053     struct ata_channel *ch = device_get_softc(request->parent);
1054     struct ata_dma_prdentry *prd = request->dma->sg;
1055     caddr_t window = rman_get_virtual(ctlr->r_res1);
1056     u_int32_t *wordp;
1057     int i, idx, length = 0;
1058 
1059     /* XXX SOS add ATAPI commands support later */
1060     switch (request->u.ata.command) {
1061 
1062     default:
1063 	return -1;
1064 
1065     case ATA_ATA_IDENTIFY:
1066     case ATA_READ:
1067     case ATA_READ48:
1068     case ATA_READ_MUL:
1069     case ATA_READ_MUL48:
1070     case ATA_WRITE:
1071     case ATA_WRITE48:
1072     case ATA_WRITE_MUL:
1073     case ATA_WRITE_MUL48:
1074 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1075 	return ata_generic_command(request);
1076 
1077     case ATA_SETFEATURES:
1078     case ATA_FLUSHCACHE:
1079     case ATA_FLUSHCACHE48:
1080     case ATA_SLEEP:
1081     case ATA_SET_MULTI:
1082 	wordp = (u_int32_t *)
1083 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1084 	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
1085 	wordp[1] = 0;
1086 	wordp[2] = 0;
1087 	ata_promise_apkt((u_int8_t *)wordp, request);
1088 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1089 	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1090 	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1091 		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
1092 	return 0;
1093 
1094     case ATA_READ_DMA:
1095     case ATA_READ_DMA48:
1096     case ATA_WRITE_DMA:
1097     case ATA_WRITE_DMA48:
1098 	wordp = (u_int32_t *)
1099 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
1100 	i = idx = 0;
1101 	do {
1102 	    wordp[idx++] = prd[i].addr;
1103 	    wordp[idx++] = prd[i].count;
1104 	    length += (prd[i].count & ~ATA_DMA_EOT);
1105 	} while (!(prd[i++].count & ATA_DMA_EOT));
1106 
1107 	wordp = (u_int32_t *)
1108 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
1109 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1110 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1111 
1112 	wordp = (u_int32_t *)
1113 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
1114 	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1115 	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1116 
1117 	wordp = (u_int32_t *)
1118 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
1119 	if (request->flags & ATA_R_READ)
1120 	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
1121 	if (request->flags & ATA_R_WRITE)
1122 	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
1123 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
1124 	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
1125 	wordp[3] = 0;
1126 
1127 	wordp = (u_int32_t *)
1128 	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1129 	if (request->flags & ATA_R_READ)
1130 	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
1131 	if (request->flags & ATA_R_WRITE)
1132 	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
1133 	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
1134 	wordp[2] = 0;
1135 	ata_promise_apkt((u_int8_t *)wordp, request);
1136 	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1137 
1138 	if (request->flags & ATA_R_READ) {
1139 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
1140 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
1141 	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1142 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
1143 	}
1144 	if (request->flags & ATA_R_WRITE) {
1145 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
1146 	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
1147 	    ata_promise_queue_hpkt(ctlr,
1148 		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
1149 	}
1150 	return 0;
1151     }
1152 }
1153 
1154 static int
1155 ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
1156 {
1157     struct ata_device *atadev = device_get_softc(request->dev);
1158     int i = 12;
1159 
1160     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
1161     bytep[i++] = ATA_D_IBM | ATA_D_LBA | ATA_DEV(atadev->unit);
1162     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
1163     bytep[i++] = ATA_A_4BIT;
1164 
1165     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
1166 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1167 	bytep[i++] = request->u.ata.feature >> 8;
1168 	bytep[i++] = request->u.ata.feature;
1169 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
1170 	bytep[i++] = request->u.ata.count >> 8;
1171 	bytep[i++] = request->u.ata.count;
1172 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1173 	bytep[i++] = request->u.ata.lba >> 24;
1174 	bytep[i++] = request->u.ata.lba;
1175 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1176 	bytep[i++] = request->u.ata.lba >> 32;
1177 	bytep[i++] = request->u.ata.lba >> 8;
1178 	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1179 	bytep[i++] = request->u.ata.lba >> 40;
1180 	bytep[i++] = request->u.ata.lba >> 16;
1181 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1182 	bytep[i++] = ATA_D_LBA | ATA_DEV(atadev->unit);
1183     }
1184     else {
1185 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1186 	bytep[i++] = request->u.ata.feature;
1187 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
1188 	bytep[i++] = request->u.ata.count;
1189 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1190 	bytep[i++] = request->u.ata.lba;
1191 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1192 	bytep[i++] = request->u.ata.lba >> 8;
1193 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1194 	bytep[i++] = request->u.ata.lba >> 16;
1195 	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1196 	bytep[i++] = (atadev->flags & ATA_D_USE_CHS ? 0 : ATA_D_LBA) |
1197 		     ATA_D_IBM | ATA_DEV(atadev->unit) |
1198 		     ((request->u.ata.lba >> 24)&0xf);
1199     }
1200     bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
1201     bytep[i++] = request->u.ata.command;
1202     return i;
1203 }
1204 
1205 static void
1206 ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
1207 {
1208     struct ata_promise_sx4 *hpktp = device_get_ivars(ctlr->dev);
1209 
1210     mtx_lock(&hpktp->mtx);
1211     if (hpktp->busy) {
1212 	struct host_packet *hp =
1213 	    malloc(sizeof(struct host_packet), M_TEMP, M_NOWAIT | M_ZERO);
1214 	hp->addr = hpkt;
1215 	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
1216     }
1217     else {
1218 	hpktp->busy = 1;
1219 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
1220     }
1221     mtx_unlock(&hpktp->mtx);
1222 }
1223 
1224 static void
1225 ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
1226 {
1227     struct ata_promise_sx4 *hpktp = device_get_ivars(ctlr->dev);
1228     struct host_packet *hp;
1229 
1230     mtx_lock(&hpktp->mtx);
1231     if ((hp = TAILQ_FIRST(&hpktp->queue))) {
1232 	TAILQ_REMOVE(&hpktp->queue, hp, chain);
1233 	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
1234 	free(hp, M_TEMP);
1235     }
1236     else
1237 	hpktp->busy = 0;
1238     mtx_unlock(&hpktp->mtx);
1239 }
1240 
1241 ATA_DECLARE_DRIVER(ata_promise);
1242