xref: /freebsd/sys/dev/ata/chipsets/ata-intel.c (revision 1f4bcc459a76b7aa664f3fd557684cd0ba6da352)
1 /*-
2  * Copyright (c) 1998 - 2008 Søren 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 <sys/param.h>
31 #include <sys/module.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
34 #include <sys/ata.h>
35 #include <sys/bus.h>
36 #include <sys/endian.h>
37 #include <sys/malloc.h>
38 #include <sys/lock.h>
39 #include <sys/mutex.h>
40 #include <sys/sema.h>
41 #include <sys/taskqueue.h>
42 #include <vm/uma.h>
43 #include <machine/stdarg.h>
44 #include <machine/resource.h>
45 #include <machine/bus.h>
46 #include <sys/rman.h>
47 #include <dev/pci/pcivar.h>
48 #include <dev/pci/pcireg.h>
49 #include <dev/ata/ata-all.h>
50 #include <dev/ata/ata-pci.h>
51 #include <ata_if.h>
52 
53 /* local prototypes */
54 static int ata_intel_chipinit(device_t dev);
55 static int ata_intel_chipdeinit(device_t dev);
56 static int ata_intel_ch_attach(device_t dev);
57 static void ata_intel_reset(device_t dev);
58 static int ata_intel_old_setmode(device_t dev, int target, int mode);
59 static int ata_intel_new_setmode(device_t dev, int target, int mode);
60 static int ata_intel_sch_setmode(device_t dev, int target, int mode);
61 static int ata_intel_sata_getrev(device_t dev, int target);
62 static int ata_intel_sata_status(device_t dev);
63 static int ata_intel_sata_ahci_read(device_t dev, int port,
64     int reg, u_int32_t *result);
65 static int ata_intel_sata_cscr_read(device_t dev, int port,
66     int reg, u_int32_t *result);
67 static int ata_intel_sata_sidpr_read(device_t dev, int port,
68     int reg, u_int32_t *result);
69 static int ata_intel_sata_ahci_write(device_t dev, int port,
70     int reg, u_int32_t result);
71 static int ata_intel_sata_cscr_write(device_t dev, int port,
72     int reg, u_int32_t result);
73 static int ata_intel_sata_sidpr_write(device_t dev, int port,
74     int reg, u_int32_t result);
75 static int ata_intel_sata_sidpr_test(device_t dev);
76 static int ata_intel_31244_ch_attach(device_t dev);
77 static int ata_intel_31244_ch_detach(device_t dev);
78 static int ata_intel_31244_status(device_t dev);
79 static void ata_intel_31244_tf_write(struct ata_request *request);
80 static void ata_intel_31244_reset(device_t dev);
81 
82 /* misc defines */
83 #define INTEL_ICH5	2
84 #define INTEL_6CH	4
85 #define INTEL_6CH2	8
86 #define INTEL_ICH7	16
87 
88 struct ata_intel_data {
89 	struct mtx	lock;
90 	u_char		smap[4];
91 };
92 
93 #define ATA_INTEL_SMAP(ctlr, ch) \
94     &((struct ata_intel_data *)((ctlr)->chipset_data))->smap[(ch)->unit * 2]
95 #define ATA_INTEL_LOCK(ctlr) \
96     mtx_lock(&((struct ata_intel_data *)((ctlr)->chipset_data))->lock)
97 #define ATA_INTEL_UNLOCK(ctlr) \
98     mtx_unlock(&((struct ata_intel_data *)((ctlr)->chipset_data))->lock)
99 
100 /*
101  * Intel chipset support functions
102  */
103 static int
104 ata_intel_probe(device_t dev)
105 {
106     struct ata_pci_controller *ctlr = device_get_softc(dev);
107     static const struct ata_chip_id ids[] =
108     {{ ATA_I82371FB,     0,          0, 2, ATA_WDMA2, "PIIX" },
109      { ATA_I82371SB,     0,          0, 2, ATA_WDMA2, "PIIX3" },
110      { ATA_I82371AB,     0,          0, 2, ATA_UDMA2, "PIIX4" },
111      { ATA_I82443MX,     0,          0, 2, ATA_UDMA2, "PIIX4" },
112      { ATA_I82451NX,     0,          0, 2, ATA_UDMA2, "PIIX4" },
113      { ATA_I82801AB,     0,          0, 2, ATA_UDMA2, "ICH0" },
114      { ATA_I82801AA,     0,          0, 2, ATA_UDMA4, "ICH" },
115      { ATA_I82372FB,     0,          0, 2, ATA_UDMA4, "ICH" },
116      { ATA_I82801BA,     0,          0, 2, ATA_UDMA5, "ICH2" },
117      { ATA_I82801BA_1,   0,          0, 2, ATA_UDMA5, "ICH2" },
118      { ATA_I82801CA,     0,          0, 2, ATA_UDMA5, "ICH3" },
119      { ATA_I82801CA_1,   0,          0, 2, ATA_UDMA5, "ICH3" },
120      { ATA_I82801DB,     0,          0, 2, ATA_UDMA5, "ICH4" },
121      { ATA_I82801DB_1,   0,          0, 2, ATA_UDMA5, "ICH4" },
122      { ATA_I82801EB,     0,          0, 2, ATA_UDMA5, "ICH5" },
123      { ATA_I82801EB_S1,  0, INTEL_ICH5, 2, ATA_SA150, "ICH5" },
124      { ATA_I82801EB_R1,  0, INTEL_ICH5, 2, ATA_SA150, "ICH5" },
125      { ATA_I6300ESB,     0,          0, 2, ATA_UDMA5, "6300ESB" },
126      { ATA_I6300ESB_S1,  0, INTEL_ICH5, 2, ATA_SA150, "6300ESB" },
127      { ATA_I6300ESB_R1,  0, INTEL_ICH5, 2, ATA_SA150, "6300ESB" },
128      { ATA_I82801FB,     0,          0, 2, ATA_UDMA5, "ICH6" },
129      { ATA_I82801FB_S1,  0,          0, 0, ATA_SA150, "ICH6" },
130      { ATA_I82801FB_R1,  0,          0, 0, ATA_SA150, "ICH6" },
131      { ATA_I82801FBM,    0,          0, 0, ATA_SA150, "ICH6M" },
132      { ATA_I82801GB,     0,          0, 1, ATA_UDMA5, "ICH7" },
133      { ATA_I82801GB_S1,  0, INTEL_ICH7, 0, ATA_SA300, "ICH7" },
134      { ATA_I82801GBM_S1, 0, INTEL_ICH7, 0, ATA_SA150, "ICH7M" },
135      { ATA_I63XXESB2,    0,          0, 1, ATA_UDMA5, "63XXESB2" },
136      { ATA_I63XXESB2_S1, 0,          0, 0, ATA_SA300, "63XXESB2" },
137      { ATA_I82801HB_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH8" },
138      { ATA_I82801HB_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH8" },
139      { ATA_I82801HBM,    0,          0, 1, ATA_UDMA5, "ICH8M" },
140      { ATA_I82801HBM_S1, 0, INTEL_6CH,  0, ATA_SA300, "ICH8M" },
141      { ATA_I82801IB_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH9" },
142      { ATA_I82801IB_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH9" },
143      { ATA_I82801IB_S3,  0, INTEL_6CH2, 0, ATA_SA300, "ICH9" },
144      { ATA_I82801IBM_S1, 0, INTEL_6CH2, 0, ATA_SA300, "ICH9M" },
145      { ATA_I82801IBM_S2, 0, INTEL_6CH2, 0, ATA_SA300, "ICH9M" },
146      { ATA_I82801JIB_S1, 0, INTEL_6CH,  0, ATA_SA300, "ICH10" },
147      { ATA_I82801JIB_S2, 0, INTEL_6CH2, 0, ATA_SA300, "ICH10" },
148      { ATA_I82801JD_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH10" },
149      { ATA_I82801JD_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH10" },
150      { ATA_I82801JI_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH10" },
151      { ATA_I82801JI_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH10" },
152      { ATA_5Series_S1,   0, INTEL_6CH,  0, ATA_SA300, "5 Series/3400 Series PCH" },
153      { ATA_5Series_S2,   0, INTEL_6CH2, 0, ATA_SA300, "5 Series/3400 Series PCH" },
154      { ATA_5Series_S3,   0, INTEL_6CH2, 0, ATA_SA300, "5 Series/3400 Series PCH" },
155      { ATA_5Series_S4,   0, INTEL_6CH,  0, ATA_SA300, "5 Series/3400 Series PCH" },
156      { ATA_5Series_S5,   0, INTEL_6CH2, 0, ATA_SA300, "5 Series/3400 Series PCH" },
157      { ATA_5Series_S6,   0, INTEL_6CH,  0, ATA_SA300, "5 Series/3400 Series PCH" },
158      { ATA_CPT_S1,       0, INTEL_6CH,  0, ATA_SA600, "Cougar Point" },
159      { ATA_CPT_S2,       0, INTEL_6CH,  0, ATA_SA600, "Cougar Point" },
160      { ATA_CPT_S3,       0, INTEL_6CH2, 0, ATA_SA300, "Cougar Point" },
161      { ATA_CPT_S4,       0, INTEL_6CH2, 0, ATA_SA300, "Cougar Point" },
162      { ATA_PBG_S1,       0, INTEL_6CH,  0, ATA_SA600, "Patsburg" },
163      { ATA_PBG_S2,       0, INTEL_6CH2, 0, ATA_SA300, "Patsburg" },
164      { ATA_PPT_S1,       0, INTEL_6CH,  0, ATA_SA600, "Panther Point" },
165      { ATA_PPT_S2,       0, INTEL_6CH,  0, ATA_SA600, "Panther Point" },
166      { ATA_PPT_S3,       0, INTEL_6CH2, 0, ATA_SA300, "Panther Point" },
167      { ATA_PPT_S4,       0, INTEL_6CH2, 0, ATA_SA300, "Panther Point" },
168      { ATA_AVOTON_S1,    0, INTEL_6CH,  0, ATA_SA600, "Avoton" },
169      { ATA_AVOTON_S2,    0, INTEL_6CH,  0, ATA_SA600, "Avoton" },
170      { ATA_AVOTON_S3,    0, INTEL_6CH2, 0, ATA_SA300, "Avoton" },
171      { ATA_AVOTON_S4,    0, INTEL_6CH2, 0, ATA_SA300, "Avoton" },
172      { ATA_LPT_S1,       0, INTEL_6CH,  0, ATA_SA600, "Lynx Point" },
173      { ATA_LPT_S2,       0, INTEL_6CH,  0, ATA_SA600, "Lynx Point" },
174      { ATA_LPT_S3,       0, INTEL_6CH2, 0, ATA_SA600, "Lynx Point" },
175      { ATA_LPT_S4,       0, INTEL_6CH2, 0, ATA_SA600, "Lynx Point" },
176      { ATA_WCPT_S1,      0, INTEL_6CH,  0, ATA_SA600, "Wildcat Point" },
177      { ATA_WCPT_S2,      0, INTEL_6CH,  0, ATA_SA600, "Wildcat Point" },
178      { ATA_WCPT_S3,      0, INTEL_6CH2, 0, ATA_SA600, "Wildcat Point" },
179      { ATA_WCPT_S4,      0, INTEL_6CH2, 0, ATA_SA600, "Wildcat Point" },
180      { ATA_WELLS_S1,     0, INTEL_6CH,  0, ATA_SA600, "Wellsburg" },
181      { ATA_WELLS_S2,     0, INTEL_6CH2, 0, ATA_SA600, "Wellsburg" },
182      { ATA_WELLS_S3,     0, INTEL_6CH,  0, ATA_SA600, "Wellsburg" },
183      { ATA_WELLS_S4,     0, INTEL_6CH2, 0, ATA_SA600, "Wellsburg" },
184      { ATA_LPTLP_S1,     0, INTEL_6CH,  0, ATA_SA600, "Lynx Point-LP" },
185      { ATA_LPTLP_S2,     0, INTEL_6CH,  0, ATA_SA600, "Lynx Point-LP" },
186      { ATA_LPTLP_S3,     0, INTEL_6CH2, 0, ATA_SA300, "Lynx Point-LP" },
187      { ATA_LPTLP_S4,     0, INTEL_6CH2, 0, ATA_SA300, "Lynx Point-LP" },
188      { ATA_I31244,       0,          0, 2, ATA_SA150, "31244" },
189      { ATA_ISCH,         0,          0, 1, ATA_UDMA5, "SCH" },
190      { ATA_COLETOCRK_S1, 0, INTEL_6CH2, 0, ATA_SA300, "COLETOCRK" },
191      { ATA_COLETOCRK_S2, 0, INTEL_6CH2, 0, ATA_SA300, "COLETOCRK" },
192      { 0, 0, 0, 0, 0, 0}};
193 
194     if (pci_get_vendor(dev) != ATA_INTEL_ID)
195 	return ENXIO;
196 
197     if (!(ctlr->chip = ata_match_chip(dev, ids)))
198 	return ENXIO;
199 
200     ata_set_desc(dev);
201     ctlr->chipinit = ata_intel_chipinit;
202     ctlr->chipdeinit = ata_intel_chipdeinit;
203     return (BUS_PROBE_LOW_PRIORITY);
204 }
205 
206 static int
207 ata_intel_chipinit(device_t dev)
208 {
209     struct ata_pci_controller *ctlr = device_get_softc(dev);
210     struct ata_intel_data *data;
211 
212     if (ata_setup_interrupt(dev, ata_generic_intr))
213 	return ENXIO;
214 
215     data = malloc(sizeof(struct ata_intel_data), M_ATAPCI, M_WAITOK | M_ZERO);
216     mtx_init(&data->lock, "Intel SATA lock", NULL, MTX_DEF);
217     ctlr->chipset_data = (void *)data;
218 
219     /* good old PIIX needs special treatment (not implemented) */
220     if (ctlr->chip->chipid == ATA_I82371FB) {
221 	ctlr->setmode = ata_intel_old_setmode;
222     }
223 
224     /* the intel 31244 needs special care if in DPA mode */
225     else if (ctlr->chip->chipid == ATA_I31244) {
226 	if (pci_get_subclass(dev) != PCIS_STORAGE_IDE) {
227 	    ctlr->r_type2 = SYS_RES_MEMORY;
228 	    ctlr->r_rid2 = PCIR_BAR(0);
229 	    if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
230 							&ctlr->r_rid2,
231 							RF_ACTIVE)))
232 		return ENXIO;
233 	    ctlr->channels = 4;
234 	    ctlr->ch_attach = ata_intel_31244_ch_attach;
235 	    ctlr->ch_detach = ata_intel_31244_ch_detach;
236 	    ctlr->reset = ata_intel_31244_reset;
237 	}
238 	ctlr->setmode = ata_sata_setmode;
239 	ctlr->getrev = ata_sata_getrev;
240     }
241     /* SCH */
242     else if (ctlr->chip->chipid == ATA_ISCH) {
243 	ctlr->channels = 1;
244 	ctlr->ch_attach = ata_intel_ch_attach;
245 	ctlr->ch_detach = ata_pci_ch_detach;
246 	ctlr->setmode = ata_intel_sch_setmode;
247     }
248     /* non SATA intel chips goes here */
249     else if (ctlr->chip->max_dma < ATA_SA150) {
250 	ctlr->channels = ctlr->chip->cfg2;
251 	ctlr->ch_attach = ata_intel_ch_attach;
252 	ctlr->ch_detach = ata_pci_ch_detach;
253 	ctlr->setmode = ata_intel_new_setmode;
254     }
255 
256     /* SATA parts can be either compat or AHCI */
257     else {
258 	/* force all ports active "the legacy way" */
259 	pci_write_config(dev, 0x92, pci_read_config(dev, 0x92, 2) | 0x0f, 2);
260 
261 	ctlr->ch_attach = ata_intel_ch_attach;
262 	ctlr->ch_detach = ata_pci_ch_detach;
263 	ctlr->reset = ata_intel_reset;
264 
265 	/* BAR(5) may point to SATA interface registers */
266 	if ((ctlr->chip->cfg1 & INTEL_ICH7)) {
267 		ctlr->r_type2 = SYS_RES_MEMORY;
268 		ctlr->r_rid2 = PCIR_BAR(5);
269 		ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
270 		    &ctlr->r_rid2, RF_ACTIVE);
271 		if (ctlr->r_res2 != NULL) {
272 			/* Set SCRAE bit to enable registers access. */
273 			pci_write_config(dev, 0x94,
274 			    pci_read_config(dev, 0x94, 4) | (1 << 9), 4);
275 			/* Set Ports Implemented register bits. */
276 			ATA_OUTL(ctlr->r_res2, 0x0C,
277 			    ATA_INL(ctlr->r_res2, 0x0C) | 0xf);
278 		}
279 	/* Skip BAR(5) on ICH8M Apples, system locks up on access. */
280 	} else if (ctlr->chip->chipid != ATA_I82801HBM_S1 ||
281 	    pci_get_subvendor(dev) != 0x106b) {
282 		ctlr->r_type2 = SYS_RES_IOPORT;
283 		ctlr->r_rid2 = PCIR_BAR(5);
284 		ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
285 		    &ctlr->r_rid2, RF_ACTIVE);
286 	}
287 	if (ctlr->r_res2 != NULL ||
288 	    (ctlr->chip->cfg1 & INTEL_ICH5))
289 		ctlr->getrev = ata_intel_sata_getrev;
290 	ctlr->setmode = ata_sata_setmode;
291     }
292     return 0;
293 }
294 
295 static int
296 ata_intel_chipdeinit(device_t dev)
297 {
298 	struct ata_pci_controller *ctlr = device_get_softc(dev);
299 	struct ata_intel_data *data;
300 
301 	data = ctlr->chipset_data;
302 	mtx_destroy(&data->lock);
303 	free(data, M_ATAPCI);
304 	ctlr->chipset_data = NULL;
305 	return (0);
306 }
307 
308 static int
309 ata_intel_ch_attach(device_t dev)
310 {
311 	struct ata_pci_controller *ctlr;
312 	struct ata_channel *ch;
313 	u_char *smap;
314 	u_int map;
315 
316 	/* setup the usual register normal pci style */
317 	if (ata_pci_ch_attach(dev))
318 		return (ENXIO);
319 
320 	ctlr = device_get_softc(device_get_parent(dev));
321 	ch = device_get_softc(dev);
322 
323 	/* if r_res2 is valid it points to SATA interface registers */
324 	if (ctlr->r_res2) {
325 		ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
326 		ch->r_io[ATA_IDX_ADDR].offset = 0x00;
327 		ch->r_io[ATA_IDX_DATA].res = ctlr->r_res2;
328 		ch->r_io[ATA_IDX_DATA].offset = 0x04;
329 	}
330 
331 	ch->flags |= ATA_ALWAYS_DMASTAT;
332 	if (ctlr->chip->max_dma >= ATA_SA150) {
333 		smap = ATA_INTEL_SMAP(ctlr, ch);
334 		map = pci_read_config(device_get_parent(dev), 0x90, 1);
335 		if (ctlr->chip->cfg1 & INTEL_ICH5) {
336 			map &= 0x07;
337 			if ((map & 0x04) == 0) {
338 				ch->flags |= ATA_SATA;
339 				ch->flags |= ATA_NO_SLAVE;
340 				smap[0] = (map & 0x01) ^ ch->unit;
341 				smap[1] = 0;
342 			} else if ((map & 0x02) == 0 && ch->unit == 0) {
343 				ch->flags |= ATA_SATA;
344 				smap[0] = (map & 0x01) ? 1 : 0;
345 				smap[1] = (map & 0x01) ? 0 : 1;
346 			} else if ((map & 0x02) != 0 && ch->unit == 1) {
347 				ch->flags |= ATA_SATA;
348 				smap[0] = (map & 0x01) ? 1 : 0;
349 				smap[1] = (map & 0x01) ? 0 : 1;
350 			}
351 		} else if (ctlr->chip->cfg1 & INTEL_6CH2) {
352 			ch->flags |= ATA_SATA;
353 			ch->flags |= ATA_NO_SLAVE;
354 			smap[0] = (ch->unit == 0) ? 0 : 1;
355 			smap[1] = 0;
356 		} else {
357 			map &= 0x03;
358 			if (map == 0x00) {
359 				ch->flags |= ATA_SATA;
360 				smap[0] = (ch->unit == 0) ? 0 : 1;
361 				smap[1] = (ch->unit == 0) ? 2 : 3;
362 			} else if (map == 0x02 && ch->unit == 0) {
363 				ch->flags |= ATA_SATA;
364 				smap[0] = 0;
365 				smap[1] = 2;
366 			} else if (map == 0x01 && ch->unit == 1) {
367 				ch->flags |= ATA_SATA;
368 				smap[0] = 1;
369 				smap[1] = 3;
370 			}
371 		}
372 		if (ch->flags & ATA_SATA) {
373 			if ((ctlr->chip->cfg1 & INTEL_ICH5)) {
374 				ch->hw.pm_read = ata_intel_sata_cscr_read;
375 				ch->hw.pm_write = ata_intel_sata_cscr_write;
376 			} else if (ctlr->r_res2) {
377 				if ((ctlr->chip->cfg1 & INTEL_ICH7)) {
378 					ch->hw.pm_read = ata_intel_sata_ahci_read;
379 					ch->hw.pm_write = ata_intel_sata_ahci_write;
380 				} else if (ata_intel_sata_sidpr_test(dev)) {
381 					ch->hw.pm_read = ata_intel_sata_sidpr_read;
382 					ch->hw.pm_write = ata_intel_sata_sidpr_write;
383 				};
384 			}
385 			if (ch->hw.pm_write != NULL) {
386 				ch->flags |= ATA_PERIODIC_POLL;
387 				ch->hw.status = ata_intel_sata_status;
388 				ata_sata_scr_write(ch, 0,
389 				    ATA_SERROR, 0xffffffff);
390 				if ((ch->flags & ATA_NO_SLAVE) == 0) {
391 					ata_sata_scr_write(ch, 1,
392 					    ATA_SERROR, 0xffffffff);
393 				}
394 			}
395 		} else
396 			ctlr->setmode = ata_intel_new_setmode;
397 		if (ctlr->chip->max_dma >= ATA_SA600)
398 			ch->flags |= ATA_USE_16BIT;
399 	} else if (ctlr->chip->chipid != ATA_ISCH)
400 		ch->flags |= ATA_CHECKS_CABLE;
401 	return (0);
402 }
403 
404 static void
405 ata_intel_reset(device_t dev)
406 {
407 	device_t parent = device_get_parent(dev);
408 	struct ata_pci_controller *ctlr = device_get_softc(parent);
409 	struct ata_channel *ch = device_get_softc(dev);
410 	int mask, pshift, timeout, devs;
411 	u_char *smap;
412 	uint16_t pcs;
413 
414 	/* In combined mode, skip SATA stuff for PATA channel. */
415 	if ((ch->flags & ATA_SATA) == 0)
416 		return (ata_generic_reset(dev));
417 
418 	/* Do hard-reset on respective SATA ports. */
419 	smap = ATA_INTEL_SMAP(ctlr, ch);
420 	mask = 1 << smap[0];
421 	if ((ch->flags & ATA_NO_SLAVE) == 0)
422 		mask |= (1 << smap[1]);
423 	pci_write_config(parent, 0x92,
424 	    pci_read_config(parent, 0x92, 2) & ~mask, 2);
425 	DELAY(100);
426 	pci_write_config(parent, 0x92,
427 	    pci_read_config(parent, 0x92, 2) | mask, 2);
428 
429 	/* Wait up to 1 sec for "connect well". */
430 	if (ctlr->chip->cfg1 & (INTEL_6CH | INTEL_6CH2))
431 		pshift = 8;
432 	else
433 		pshift = 4;
434 	for (timeout = 0; timeout < 100 ; timeout++) {
435 		pcs = (pci_read_config(parent, 0x92, 2) >> pshift) & mask;
436 		if ((pcs == mask) && (ATA_IDX_INB(ch, ATA_STATUS) != 0xff))
437 			break;
438 		ata_udelay(10000);
439 	}
440 
441 	if (bootverbose)
442 		device_printf(dev, "SATA reset: ports status=0x%02x\n", pcs);
443 	/* If any device found, do soft-reset. */
444 	if (ch->hw.pm_read != NULL) {
445 		devs = ata_sata_phy_reset(dev, 0, 2) ? ATA_ATA_MASTER : 0;
446 		if ((ch->flags & ATA_NO_SLAVE) == 0)
447 			devs |= ata_sata_phy_reset(dev, 1, 2) ?
448 			    ATA_ATA_SLAVE : 0;
449 	} else {
450 		devs = (pcs & (1 << smap[0])) ? ATA_ATA_MASTER : 0;
451 		if ((ch->flags & ATA_NO_SLAVE) == 0)
452 			devs |= (pcs & (1 << smap[1])) ?
453 			    ATA_ATA_SLAVE : 0;
454 	}
455 	if (devs) {
456 		ata_generic_reset(dev);
457 		/* Reset may give fake slave when only ATAPI master present. */
458 		ch->devices &= (devs | (devs * ATA_ATAPI_MASTER));
459 	} else
460 		ch->devices = 0;
461 }
462 
463 static int
464 ata_intel_old_setmode(device_t dev, int target, int mode)
465 {
466 	device_t parent = device_get_parent(dev);
467 	struct ata_pci_controller *ctlr = device_get_softc(parent);
468 
469 	mode = min(mode, ctlr->chip->max_dma);
470 	return (mode);
471 }
472 
473 static int
474 ata_intel_new_setmode(device_t dev, int target, int mode)
475 {
476 	device_t parent = device_get_parent(dev);
477 	struct ata_pci_controller *ctlr = device_get_softc(parent);
478 	struct ata_channel *ch = device_get_softc(dev);
479 	int devno = (ch->unit << 1) + target;
480 	int piomode;
481 	u_int32_t reg40 = pci_read_config(parent, 0x40, 4);
482 	u_int8_t reg44 = pci_read_config(parent, 0x44, 1);
483 	u_int8_t reg48 = pci_read_config(parent, 0x48, 1);
484 	u_int16_t reg4a = pci_read_config(parent, 0x4a, 2);
485 	u_int16_t reg54 = pci_read_config(parent, 0x54, 2);
486 	u_int32_t mask40 = 0, new40 = 0;
487 	u_int8_t mask44 = 0, new44 = 0;
488 	static const uint8_t timings[] =
489 	    { 0x00, 0x00, 0x10, 0x21, 0x23, 0x00, 0x21, 0x23 };
490 	static const uint8_t utimings[] =
491 	    { 0x00, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02 };
492 
493 	/* In combined mode, skip PATA stuff for SATA channel. */
494 	if (ch->flags & ATA_SATA)
495 		return (ata_sata_setmode(dev, target, mode));
496 
497 	mode = min(mode, ctlr->chip->max_dma);
498 	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
499 	    !(reg54 & (0x10 << devno))) {
500 		ata_print_cable(dev, "controller");
501 		mode = ATA_UDMA2;
502 	}
503 	/* Enable/disable UDMA and set timings. */
504 	if (mode >= ATA_UDMA0) {
505 	    pci_write_config(parent, 0x48, reg48 | (0x0001 << devno), 2);
506 	    pci_write_config(parent, 0x4a,
507 		(reg4a & ~(0x3 << (devno << 2))) |
508 		(utimings[mode & ATA_MODE_MASK] << (devno<<2)), 2);
509 	    piomode = ATA_PIO4;
510 	} else {
511 	    pci_write_config(parent, 0x48, reg48 & ~(0x0001 << devno), 2);
512 	    pci_write_config(parent, 0x4a, (reg4a & ~(0x3 << (devno << 2))),2);
513 	    piomode = mode;
514 	}
515 	reg54 |= 0x0400;
516 	/* Set UDMA reference clock (33/66/133MHz). */
517 	reg54 &= ~(0x1001 << devno);
518 	if (mode >= ATA_UDMA5)
519 	    reg54 |= (0x1000 << devno);
520 	else if (mode >= ATA_UDMA3)
521 	    reg54 |= (0x1 << devno);
522 	pci_write_config(parent, 0x54, reg54, 2);
523 	/* Allow PIO/WDMA timing controls. */
524 	reg40 &= ~0x00ff00ff;
525 	reg40 |= 0x40774077;
526 	/* Set PIO/WDMA timings. */
527 	if (target == 0) {
528 	    mask40 = 0x3300;
529 	    new40 = timings[ata_mode2idx(piomode)] << 8;
530 	} else {
531 	    mask44 = 0x0f;
532 	    new44 = ((timings[ata_mode2idx(piomode)] & 0x30) >> 2) |
533 		    (timings[ata_mode2idx(piomode)] & 0x03);
534 	}
535 	if (ch->unit) {
536 	    mask40 <<= 16;
537 	    new40 <<= 16;
538 	    mask44 <<= 4;
539 	    new44 <<= 4;
540 	}
541 	pci_write_config(parent, 0x40, (reg40 & ~mask40) | new40, 4);
542 	pci_write_config(parent, 0x44, (reg44 & ~mask44) | new44, 1);
543 	return (mode);
544 }
545 
546 static int
547 ata_intel_sch_setmode(device_t dev, int target, int mode)
548 {
549 	device_t parent = device_get_parent(dev);
550 	struct ata_pci_controller *ctlr = device_get_softc(parent);
551 	u_int8_t dtim = 0x80 + (target << 2);
552 	u_int32_t tim = pci_read_config(parent, dtim, 4);
553 	int piomode;
554 
555 	mode = min(mode, ctlr->chip->max_dma);
556 	if (mode >= ATA_UDMA0) {
557 		tim |= (0x1 << 31);
558 		tim &= ~(0x7 << 16);
559 		tim |= ((mode & ATA_MODE_MASK) << 16);
560 		piomode = ATA_PIO4;
561 	} else if (mode >= ATA_WDMA0) {
562 		tim &= ~(0x1 << 31);
563 		tim &= ~(0x3 << 8);
564 		tim |= ((mode & ATA_MODE_MASK) << 8);
565 		piomode = (mode == ATA_WDMA0) ? ATA_PIO0 :
566 		    (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4;
567 	} else
568 		piomode = mode;
569 	tim &= ~(0x7);
570 	tim |= (piomode & 0x7);
571 	pci_write_config(parent, dtim, tim, 4);
572 	return (mode);
573 }
574 
575 static int
576 ata_intel_sata_getrev(device_t dev, int target)
577 {
578 	struct ata_channel *ch = device_get_softc(dev);
579 	uint32_t status;
580 
581 	if (ata_sata_scr_read(ch, target, ATA_SSTATUS, &status) == 0)
582 		return ((status & 0x0f0) >> 4);
583 	return (0xff);
584 }
585 
586 static int
587 ata_intel_sata_status(device_t dev)
588 {
589 	struct ata_channel *ch = device_get_softc(dev);
590 
591 	ata_sata_phy_check_events(dev, 0);
592 	if ((ch->flags & ATA_NO_SLAVE) == 0)
593 		ata_sata_phy_check_events(dev, 1);
594 
595 	return ata_pci_status(dev);
596 }
597 
598 static int
599 ata_intel_sata_ahci_read(device_t dev, int port, int reg, u_int32_t *result)
600 {
601 	struct ata_pci_controller *ctlr;
602 	struct ata_channel *ch;
603 	device_t parent;
604 	u_char *smap;
605 	int offset;
606 
607 	parent = device_get_parent(dev);
608 	ctlr = device_get_softc(parent);
609 	ch = device_get_softc(dev);
610 	port = (port == 1) ? 1 : 0;
611 	smap = ATA_INTEL_SMAP(ctlr, ch);
612 	offset = 0x100 + smap[port] * 0x80;
613 	switch (reg) {
614 	case ATA_SSTATUS:
615 	    reg = 0x28;
616 	    break;
617 	case ATA_SCONTROL:
618 	    reg = 0x2c;
619 	    break;
620 	case ATA_SERROR:
621 	    reg = 0x30;
622 	    break;
623 	default:
624 	    return (EINVAL);
625 	}
626 	*result = ATA_INL(ctlr->r_res2, offset + reg);
627 	return (0);
628 }
629 
630 static int
631 ata_intel_sata_cscr_read(device_t dev, int port, int reg, u_int32_t *result)
632 {
633 	struct ata_pci_controller *ctlr;
634 	struct ata_channel *ch;
635 	device_t parent;
636 	u_char *smap;
637 
638 	parent = device_get_parent(dev);
639 	ctlr = device_get_softc(parent);
640 	ch = device_get_softc(dev);
641 	smap = ATA_INTEL_SMAP(ctlr, ch);
642 	port = (port == 1) ? 1 : 0;
643 	switch (reg) {
644 	case ATA_SSTATUS:
645 	    reg = 0;
646 	    break;
647 	case ATA_SERROR:
648 	    reg = 1;
649 	    break;
650 	case ATA_SCONTROL:
651 	    reg = 2;
652 	    break;
653 	default:
654 	    return (EINVAL);
655 	}
656 	ATA_INTEL_LOCK(ctlr);
657 	pci_write_config(parent, 0xa0,
658 	    0x50 + smap[port] * 0x10 + reg * 4, 4);
659 	*result = pci_read_config(parent, 0xa4, 4);
660 	ATA_INTEL_UNLOCK(ctlr);
661 	return (0);
662 }
663 
664 static int
665 ata_intel_sata_sidpr_read(device_t dev, int port, int reg, u_int32_t *result)
666 {
667 	struct ata_pci_controller *ctlr;
668 	struct ata_channel *ch;
669 	device_t parent;
670 
671 	parent = device_get_parent(dev);
672 	ctlr = device_get_softc(parent);
673 	ch = device_get_softc(dev);
674 	port = (port == 1) ? 1 : 0;
675 	switch (reg) {
676 	case ATA_SSTATUS:
677 	    reg = 0;
678 	    break;
679 	case ATA_SCONTROL:
680 	    reg = 1;
681 	    break;
682 	case ATA_SERROR:
683 	    reg = 2;
684 	    break;
685 	default:
686 	    return (EINVAL);
687 	}
688 	ATA_INTEL_LOCK(ctlr);
689 	ATA_IDX_OUTL(ch, ATA_IDX_ADDR, ((ch->unit * 2 + port) << 8) + reg);
690 	*result = ATA_IDX_INL(ch, ATA_IDX_DATA);
691 	ATA_INTEL_UNLOCK(ctlr);
692 	return (0);
693 }
694 
695 static int
696 ata_intel_sata_ahci_write(device_t dev, int port, int reg, u_int32_t value)
697 {
698 	struct ata_pci_controller *ctlr;
699 	struct ata_channel *ch;
700 	device_t parent;
701 	u_char *smap;
702 	int offset;
703 
704 	parent = device_get_parent(dev);
705 	ctlr = device_get_softc(parent);
706 	ch = device_get_softc(dev);
707 	port = (port == 1) ? 1 : 0;
708 	smap = ATA_INTEL_SMAP(ctlr, ch);
709 	offset = 0x100 + smap[port] * 0x80;
710 	switch (reg) {
711 	case ATA_SSTATUS:
712 	    reg = 0x28;
713 	    break;
714 	case ATA_SCONTROL:
715 	    reg = 0x2c;
716 	    break;
717 	case ATA_SERROR:
718 	    reg = 0x30;
719 	    break;
720 	default:
721 	    return (EINVAL);
722 	}
723 	ATA_OUTL(ctlr->r_res2, offset + reg, value);
724 	return (0);
725 }
726 
727 static int
728 ata_intel_sata_cscr_write(device_t dev, int port, int reg, u_int32_t value)
729 {
730 	struct ata_pci_controller *ctlr;
731 	struct ata_channel *ch;
732 	device_t parent;
733 	u_char *smap;
734 
735 	parent = device_get_parent(dev);
736 	ctlr = device_get_softc(parent);
737 	ch = device_get_softc(dev);
738 	smap = ATA_INTEL_SMAP(ctlr, ch);
739 	port = (port == 1) ? 1 : 0;
740 	switch (reg) {
741 	case ATA_SSTATUS:
742 	    reg = 0;
743 	    break;
744 	case ATA_SERROR:
745 	    reg = 1;
746 	    break;
747 	case ATA_SCONTROL:
748 	    reg = 2;
749 	    break;
750 	default:
751 	    return (EINVAL);
752 	}
753 	ATA_INTEL_LOCK(ctlr);
754 	pci_write_config(parent, 0xa0,
755 	    0x50 + smap[port] * 0x10 + reg * 4, 4);
756 	pci_write_config(parent, 0xa4, value, 4);
757 	ATA_INTEL_UNLOCK(ctlr);
758 	return (0);
759 }
760 
761 static int
762 ata_intel_sata_sidpr_write(device_t dev, int port, int reg, u_int32_t value)
763 {
764 	struct ata_pci_controller *ctlr;
765 	struct ata_channel *ch;
766 	device_t parent;
767 
768 	parent = device_get_parent(dev);
769 	ctlr = device_get_softc(parent);
770 	ch = device_get_softc(dev);
771 	port = (port == 1) ? 1 : 0;
772 	switch (reg) {
773 	case ATA_SSTATUS:
774 	    reg = 0;
775 	    break;
776 	case ATA_SCONTROL:
777 	    reg = 1;
778 	    break;
779 	case ATA_SERROR:
780 	    reg = 2;
781 	    break;
782 	default:
783 	    return (EINVAL);
784 	}
785 	ATA_INTEL_LOCK(ctlr);
786 	ATA_IDX_OUTL(ch, ATA_IDX_ADDR, ((ch->unit * 2 + port) << 8) + reg);
787 	ATA_IDX_OUTL(ch, ATA_IDX_DATA, value);
788 	ATA_INTEL_UNLOCK(ctlr);
789 	return (0);
790 }
791 
792 static int
793 ata_intel_sata_sidpr_test(device_t dev)
794 {
795 	struct ata_channel *ch = device_get_softc(dev);
796 	int port;
797 	uint32_t val;
798 
799 	port = (ch->flags & ATA_NO_SLAVE) ? 0 : 1;
800 	for (; port >= 0; port--) {
801 		ata_intel_sata_sidpr_read(dev, port, ATA_SCONTROL, &val);
802 		if ((val & ATA_SC_IPM_MASK) ==
803 		    (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))
804 			return (1);
805 		val |= ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER;
806 		ata_intel_sata_sidpr_write(dev, port, ATA_SCONTROL, val);
807 		ata_intel_sata_sidpr_read(dev, port, ATA_SCONTROL, &val);
808 		if ((val & ATA_SC_IPM_MASK) ==
809 		    (ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))
810 			return (1);
811 	}
812 	if (bootverbose)
813 		device_printf(dev,
814 		    "SControl registers are not functional: %08x\n", val);
815 	return (0);
816 }
817 
818 static int
819 ata_intel_31244_ch_attach(device_t dev)
820 {
821     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
822     struct ata_channel *ch = device_get_softc(dev);
823     int i;
824     int ch_offset;
825 
826     ata_pci_dmainit(dev);
827 
828     ch_offset = 0x200 + ch->unit * 0x200;
829 
830     for (i = ATA_DATA; i < ATA_MAX_RES; i++)
831 	ch->r_io[i].res = ctlr->r_res2;
832 
833     /* setup ATA registers */
834     ch->r_io[ATA_DATA].offset = ch_offset + 0x00;
835     ch->r_io[ATA_FEATURE].offset = ch_offset + 0x06;
836     ch->r_io[ATA_COUNT].offset = ch_offset + 0x08;
837     ch->r_io[ATA_SECTOR].offset = ch_offset + 0x0c;
838     ch->r_io[ATA_CYL_LSB].offset = ch_offset + 0x10;
839     ch->r_io[ATA_CYL_MSB].offset = ch_offset + 0x14;
840     ch->r_io[ATA_DRIVE].offset = ch_offset + 0x18;
841     ch->r_io[ATA_COMMAND].offset = ch_offset + 0x1d;
842     ch->r_io[ATA_ERROR].offset = ch_offset + 0x04;
843     ch->r_io[ATA_STATUS].offset = ch_offset + 0x1c;
844     ch->r_io[ATA_ALTSTAT].offset = ch_offset + 0x28;
845     ch->r_io[ATA_CONTROL].offset = ch_offset + 0x29;
846 
847     /* setup DMA registers */
848     ch->r_io[ATA_SSTATUS].offset = ch_offset + 0x100;
849     ch->r_io[ATA_SERROR].offset = ch_offset + 0x104;
850     ch->r_io[ATA_SCONTROL].offset = ch_offset + 0x108;
851 
852     /* setup SATA registers */
853     ch->r_io[ATA_BMCMD_PORT].offset = ch_offset + 0x70;
854     ch->r_io[ATA_BMSTAT_PORT].offset = ch_offset + 0x72;
855     ch->r_io[ATA_BMDTP_PORT].offset = ch_offset + 0x74;
856 
857     ch->flags |= ATA_NO_SLAVE;
858     ch->flags |= ATA_SATA;
859     ata_pci_hw(dev);
860     ch->hw.status = ata_intel_31244_status;
861     ch->hw.tf_write = ata_intel_31244_tf_write;
862 
863     /* enable PHY state change interrupt */
864     ATA_OUTL(ctlr->r_res2, 0x4,
865 	     ATA_INL(ctlr->r_res2, 0x04) | (0x01 << (ch->unit << 3)));
866     return 0;
867 }
868 
869 static int
870 ata_intel_31244_ch_detach(device_t dev)
871 {
872 
873     ata_pci_dmafini(dev);
874     return (0);
875 }
876 
877 static int
878 ata_intel_31244_status(device_t dev)
879 {
880     /* do we have any PHY events ? */
881     ata_sata_phy_check_events(dev, -1);
882 
883     /* any drive action to take care of ? */
884     return ata_pci_status(dev);
885 }
886 
887 static void
888 ata_intel_31244_tf_write(struct ata_request *request)
889 {
890     struct ata_channel *ch = device_get_softc(request->parent);
891 
892     if (request->flags & ATA_R_48BIT) {
893 	ATA_IDX_OUTW(ch, ATA_FEATURE, request->u.ata.feature);
894 	ATA_IDX_OUTW(ch, ATA_COUNT, request->u.ata.count);
895 	ATA_IDX_OUTW(ch, ATA_SECTOR, ((request->u.ata.lba >> 16) & 0xff00) |
896 				      (request->u.ata.lba & 0x00ff));
897 	ATA_IDX_OUTW(ch, ATA_CYL_LSB, ((request->u.ata.lba >> 24) & 0xff00) |
898 				       ((request->u.ata.lba >> 8) & 0x00ff));
899 	ATA_IDX_OUTW(ch, ATA_CYL_MSB, ((request->u.ata.lba >> 32) & 0xff00) |
900 				       ((request->u.ata.lba >> 16) & 0x00ff));
901 	ATA_IDX_OUTW(ch, ATA_DRIVE, ATA_D_LBA | ATA_DEV(request->unit));
902     }
903     else {
904 	ATA_IDX_OUTB(ch, ATA_FEATURE, request->u.ata.feature);
905 	ATA_IDX_OUTB(ch, ATA_COUNT, request->u.ata.count);
906 	    ATA_IDX_OUTB(ch, ATA_SECTOR, request->u.ata.lba);
907 	    ATA_IDX_OUTB(ch, ATA_CYL_LSB, request->u.ata.lba >> 8);
908 	    ATA_IDX_OUTB(ch, ATA_CYL_MSB, request->u.ata.lba >> 16);
909 	    ATA_IDX_OUTB(ch, ATA_DRIVE,
910 			 ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit) |
911 			 ((request->u.ata.lba >> 24) & 0x0f));
912     }
913 }
914 
915 static void
916 ata_intel_31244_reset(device_t dev)
917 {
918     struct ata_channel *ch = device_get_softc(dev);
919 
920     if (ata_sata_phy_reset(dev, -1, 1))
921 	ata_generic_reset(dev);
922     else
923 	ch->devices = 0;
924 }
925 
926 ATA_DECLARE_DRIVER(ata_intel);
927