xref: /freebsd/sys/dev/ata/chipsets/ata-intel.c (revision b7c60aadbbd5c846a250c05791fe7406d6d78bf4)
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 "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_intel_chipinit(device_t dev);
56 static int ata_intel_chipdeinit(device_t dev);
57 static int ata_intel_ch_attach(device_t dev);
58 static void ata_intel_reset(device_t dev);
59 static int ata_intel_old_setmode(device_t dev, int target, int mode);
60 static int ata_intel_new_setmode(device_t dev, int target, int mode);
61 static int ata_intel_sch_setmode(device_t dev, int target, int mode);
62 static int ata_intel_sata_getrev(device_t dev, int target);
63 static int ata_intel_sata_status(device_t dev);
64 static int ata_intel_sata_ahci_read(device_t dev, int port,
65     int reg, u_int32_t *result);
66 static int ata_intel_sata_cscr_read(device_t dev, int port,
67     int reg, u_int32_t *result);
68 static int ata_intel_sata_sidpr_read(device_t dev, int port,
69     int reg, u_int32_t *result);
70 static int ata_intel_sata_ahci_write(device_t dev, int port,
71     int reg, u_int32_t result);
72 static int ata_intel_sata_cscr_write(device_t dev, int port,
73     int reg, u_int32_t result);
74 static int ata_intel_sata_sidpr_write(device_t dev, int port,
75     int reg, u_int32_t result);
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_AHCI	1
84 #define INTEL_ICH5	2
85 #define INTEL_6CH	4
86 #define INTEL_6CH2	8
87 #define INTEL_ICH7	16
88 
89 struct ata_intel_data {
90 	struct mtx	lock;
91 	u_char		smap[4];
92 };
93 
94 #define ATA_INTEL_SMAP(ctlr, ch) \
95     &((struct ata_intel_data *)((ctlr)->chipset_data))->smap[(ch)->unit * 2]
96 #define ATA_INTEL_LOCK(ctlr) \
97     mtx_lock(&((struct ata_intel_data *)((ctlr)->chipset_data))->lock)
98 #define ATA_INTEL_UNLOCK(ctlr) \
99     mtx_unlock(&((struct ata_intel_data *)((ctlr)->chipset_data))->lock)
100 
101 /*
102  * Intel chipset support functions
103  */
104 static int
105 ata_intel_probe(device_t dev)
106 {
107     struct ata_pci_controller *ctlr = device_get_softc(dev);
108     static struct ata_chip_id ids[] =
109     {{ ATA_I82371FB,     0,          0, 2, ATA_WDMA2, "PIIX" },
110      { ATA_I82371SB,     0,          0, 2, ATA_WDMA2, "PIIX3" },
111      { ATA_I82371AB,     0,          0, 2, ATA_UDMA2, "PIIX4" },
112      { ATA_I82443MX,     0,          0, 2, ATA_UDMA2, "PIIX4" },
113      { ATA_I82451NX,     0,          0, 2, ATA_UDMA2, "PIIX4" },
114      { ATA_I82801AB,     0,          0, 2, ATA_UDMA2, "ICH0" },
115      { ATA_I82801AA,     0,          0, 2, ATA_UDMA4, "ICH" },
116      { ATA_I82372FB,     0,          0, 2, ATA_UDMA4, "ICH" },
117      { ATA_I82801BA,     0,          0, 2, ATA_UDMA5, "ICH2" },
118      { ATA_I82801BA_1,   0,          0, 2, ATA_UDMA5, "ICH2" },
119      { ATA_I82801CA,     0,          0, 2, ATA_UDMA5, "ICH3" },
120      { ATA_I82801CA_1,   0,          0, 2, ATA_UDMA5, "ICH3" },
121      { ATA_I82801DB,     0,          0, 2, ATA_UDMA5, "ICH4" },
122      { ATA_I82801DB_1,   0,          0, 2, ATA_UDMA5, "ICH4" },
123      { ATA_I82801EB,     0,          0, 2, ATA_UDMA5, "ICH5" },
124      { ATA_I82801EB_S1,  0, INTEL_ICH5, 2, ATA_SA150, "ICH5" },
125      { ATA_I82801EB_R1,  0, INTEL_ICH5, 2, ATA_SA150, "ICH5" },
126      { ATA_I6300ESB,     0,          0, 2, ATA_UDMA5, "6300ESB" },
127      { ATA_I6300ESB_S1,  0, INTEL_ICH5, 2, ATA_SA150, "6300ESB" },
128      { ATA_I6300ESB_R1,  0, INTEL_ICH5, 2, ATA_SA150, "6300ESB" },
129      { ATA_I82801FB,     0,          0, 2, ATA_UDMA5, "ICH6" },
130      { ATA_I82801FB_S1,  0, INTEL_AHCI, 0, ATA_SA150, "ICH6" },
131      { ATA_I82801FB_R1,  0, INTEL_AHCI, 0, ATA_SA150, "ICH6" },
132      { ATA_I82801FBM,    0, INTEL_AHCI, 0, ATA_SA150, "ICH6M" },
133      { ATA_I82801GB,     0,          0, 1, ATA_UDMA5, "ICH7" },
134      { ATA_I82801GB_S1,  0, INTEL_ICH7, 0, ATA_SA300, "ICH7" },
135      { ATA_I82801GB_R1,  0, INTEL_AHCI, 0, ATA_SA300, "ICH7" },
136      { ATA_I82801GB_AH,  0, INTEL_AHCI, 0, ATA_SA300, "ICH7" },
137      { ATA_I82801GBM_S1, 0, INTEL_ICH7, 0, ATA_SA150, "ICH7M" },
138      { ATA_I82801GBM_R1, 0, INTEL_AHCI, 0, ATA_SA150, "ICH7M" },
139      { ATA_I82801GBM_AH, 0, INTEL_AHCI, 0, ATA_SA150, "ICH7M" },
140      { ATA_I63XXESB2,    0,          0, 1, ATA_UDMA5, "63XXESB2" },
141      { ATA_I63XXESB2_S1, 0,          0, 0, ATA_SA300, "63XXESB2" },
142      { ATA_I63XXESB2_S2, 0, INTEL_AHCI, 0, ATA_SA300, "63XXESB2" },
143      { ATA_I63XXESB2_R1, 0, INTEL_AHCI, 0, ATA_SA300, "63XXESB2" },
144      { ATA_I63XXESB2_R2, 0, INTEL_AHCI, 0, ATA_SA300, "63XXESB2" },
145      { ATA_I82801HB_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH8" },
146      { ATA_I82801HB_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH8" },
147      { ATA_I82801HB_R1,  0, INTEL_AHCI, 0, ATA_SA300, "ICH8" },
148      { ATA_I82801HB_AH4, 0, INTEL_AHCI, 0, ATA_SA300, "ICH8" },
149      { ATA_I82801HB_AH6, 0, INTEL_AHCI, 0, ATA_SA300, "ICH8" },
150      { ATA_I82801HBM,    0,          0, 1, ATA_UDMA5, "ICH8M" },
151      { ATA_I82801HBM_S1, 0, INTEL_6CH,  0, ATA_SA300, "ICH8M" },
152      { ATA_I82801HBM_S2, 0, INTEL_AHCI, 0, ATA_SA300, "ICH8M" },
153      { ATA_I82801HBM_S3, 0, INTEL_AHCI, 0, ATA_SA300, "ICH8M" },
154      { ATA_I82801IB_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH9" },
155      { ATA_I82801IB_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH9" },
156      { ATA_I82801IB_S3,  0, INTEL_6CH2, 0, ATA_SA300, "ICH9" },
157      { ATA_I82801IB_AH4, 0, INTEL_AHCI, 0, ATA_SA300, "ICH9" },
158      { ATA_I82801IB_AH6, 0, INTEL_AHCI, 0, ATA_SA300, "ICH9" },
159      { ATA_I82801IB_R1,  0, INTEL_AHCI, 0, ATA_SA300, "ICH9" },
160      { ATA_I82801IBM_S1, 0, INTEL_6CH2, 0, ATA_SA300, "ICH9M" },
161      { ATA_I82801IBM_AH, 0, INTEL_AHCI, 0, ATA_SA300, "ICH9M" },
162      { ATA_I82801IBM_R1, 0, INTEL_AHCI, 0, ATA_SA300, "ICH9M" },
163      { ATA_I82801IBM_S2, 0, INTEL_6CH2, 0, ATA_SA300, "ICH9M" },
164      { ATA_I82801JIB_S1, 0, INTEL_6CH,  0, ATA_SA300, "ICH10" },
165      { ATA_I82801JIB_AH, 0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
166      { ATA_I82801JIB_R1, 0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
167      { ATA_I82801JIB_S2, 0, INTEL_6CH2, 0, ATA_SA300, "ICH10" },
168      { ATA_I82801JD_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH10" },
169      { ATA_I82801JD_AH,  0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
170      { ATA_I82801JD_R1,  0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
171      { ATA_I82801JD_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH10" },
172      { ATA_I82801JI_S1,  0, INTEL_6CH,  0, ATA_SA300, "ICH10" },
173      { ATA_I82801JI_AH,  0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
174      { ATA_I82801JI_R1,  0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
175      { ATA_I82801JI_S2,  0, INTEL_6CH2, 0, ATA_SA300, "ICH10" },
176      { ATA_5Series_S1,   0, INTEL_6CH,  0, ATA_SA300, "5 Series/3400 Series PCH" },
177      { ATA_5Series_S2,   0, INTEL_6CH2, 0, ATA_SA300, "5 Series/3400 Series PCH" },
178      { ATA_5Series_AH1,  0, INTEL_AHCI, 0, ATA_SA300, "5 Series/3400 Series PCH" },
179      { ATA_5Series_AH2,  0, INTEL_AHCI, 0, ATA_SA300, "5 Series/3400 Series PCH" },
180      { ATA_5Series_R1,   0, INTEL_AHCI, 0, ATA_SA300, "5 Series/3400 Series PCH" },
181      { ATA_5Series_S3,   0, INTEL_6CH2, 0, ATA_SA300, "5 Series/3400 Series PCH" },
182      { ATA_5Series_S4,   0, INTEL_6CH,  0, ATA_SA300, "5 Series/3400 Series PCH" },
183      { ATA_5Series_AH3,  0, INTEL_AHCI, 0, ATA_SA300, "5 Series/3400 Series PCH" },
184      { ATA_5Series_R2,   0, INTEL_AHCI, 0, ATA_SA300, "5 Series/3400 Series PCH" },
185      { ATA_5Series_S5,   0, INTEL_6CH2, 0, ATA_SA300, "5 Series/3400 Series PCH" },
186      { ATA_5Series_S6,   0, INTEL_6CH,  0, ATA_SA300, "5 Series/3400 Series PCH" },
187      { ATA_5Series_AH4,  0, INTEL_AHCI, 0, ATA_SA300, "5 Series/3400 Series PCH" },
188      { ATA_CPT_S1,       0, INTEL_6CH,  0, ATA_SA300, "Cougar Point" },
189      { ATA_CPT_S2,       0, INTEL_6CH,  0, ATA_SA300, "Cougar Point" },
190      { ATA_CPT_AH1,      0, INTEL_AHCI, 0, ATA_SA300, "Cougar Point" },
191      { ATA_CPT_AH2,      0, INTEL_AHCI, 0, ATA_SA300, "Cougar Point" },
192      { ATA_CPT_R1,       0, INTEL_AHCI, 0, ATA_SA300, "Cougar Point" },
193      { ATA_CPT_R2,       0, INTEL_AHCI, 0, ATA_SA300, "Cougar Point" },
194      { ATA_CPT_S3,       0, INTEL_6CH2, 0, ATA_SA300, "Cougar Point" },
195      { ATA_CPT_S4,       0, INTEL_6CH2, 0, ATA_SA300, "Cougar Point" },
196      { ATA_PBG_S1,       0, INTEL_6CH,  0, ATA_SA300, "Patsburg" },
197      { ATA_PBG_AH1,      0, INTEL_AHCI, 0, ATA_SA300, "Patsburg" },
198      { ATA_PBG_R1,       0, INTEL_AHCI, 0, ATA_SA300, "Patsburg" },
199      { ATA_PBG_R2,       0, INTEL_AHCI, 0, ATA_SA300, "Patsburg" },
200      { ATA_PBG_R3,       0, INTEL_AHCI, 0, ATA_SA300, "Patsburg" },
201      { ATA_PBG_S2,       0, INTEL_6CH2, 0, ATA_SA300, "Patsburg" },
202      { ATA_PPT_S1,       0, INTEL_6CH,  0, ATA_SA300, "Panther Point" },
203      { ATA_PPT_S2,       0, INTEL_6CH,  0, ATA_SA300, "Panther Point" },
204      { ATA_PPT_AH1,      0, INTEL_AHCI, 0, ATA_SA300, "Panther Point" },
205      { ATA_PPT_AH2,      0, INTEL_AHCI, 0, ATA_SA300, "Panther Point" },
206      { ATA_PPT_R1,       0, INTEL_AHCI, 0, ATA_SA300, "Panther Point" },
207      { ATA_PPT_R2,       0, INTEL_AHCI, 0, ATA_SA300, "Panther Point" },
208      { ATA_PPT_R3,       0, INTEL_AHCI, 0, ATA_SA300, "Panther Point" },
209      { ATA_PPT_R4,       0, INTEL_AHCI, 0, ATA_SA300, "Panther Point" },
210      { ATA_PPT_S3,       0, INTEL_6CH2, 0, ATA_SA300, "Panther Point" },
211      { ATA_PPT_S4,       0, INTEL_6CH2, 0, ATA_SA300, "Panther Point" },
212      { ATA_PPT_R5,       0, INTEL_AHCI, 0, ATA_SA300, "Panther Point" },
213      { ATA_PPT_R6,       0, INTEL_AHCI, 0, ATA_SA300, "Panther Point" },
214      { ATA_I31244,       0,          0, 2, ATA_SA150, "31244" },
215      { ATA_ISCH,         0,          0, 1, ATA_UDMA5, "SCH" },
216      { ATA_DH89XXCC,     0, INTEL_AHCI, 0, ATA_SA300, "DH89xxCC" },
217      { 0, 0, 0, 0, 0, 0}};
218 
219     if (pci_get_vendor(dev) != ATA_INTEL_ID)
220 	return ENXIO;
221 
222     if (!(ctlr->chip = ata_match_chip(dev, ids)))
223 	return ENXIO;
224 
225     ata_set_desc(dev);
226     ctlr->chipinit = ata_intel_chipinit;
227     ctlr->chipdeinit = ata_intel_chipdeinit;
228     return (BUS_PROBE_DEFAULT);
229 }
230 
231 static int
232 ata_intel_chipinit(device_t dev)
233 {
234     struct ata_pci_controller *ctlr = device_get_softc(dev);
235     struct ata_intel_data *data;
236 
237     if (ata_setup_interrupt(dev, ata_generic_intr))
238 	return ENXIO;
239 
240     data = malloc(sizeof(struct ata_intel_data), M_ATAPCI, M_WAITOK | M_ZERO);
241     mtx_init(&data->lock, "Intel SATA lock", NULL, MTX_DEF);
242     ctlr->chipset_data = (void *)data;
243 
244     /* good old PIIX needs special treatment (not implemented) */
245     if (ctlr->chip->chipid == ATA_I82371FB) {
246 	ctlr->setmode = ata_intel_old_setmode;
247     }
248 
249     /* the intel 31244 needs special care if in DPA mode */
250     else if (ctlr->chip->chipid == ATA_I31244) {
251 	if (pci_get_subclass(dev) != PCIS_STORAGE_IDE) {
252 	    ctlr->r_type2 = SYS_RES_MEMORY;
253 	    ctlr->r_rid2 = PCIR_BAR(0);
254 	    if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
255 							&ctlr->r_rid2,
256 							RF_ACTIVE)))
257 		return ENXIO;
258 	    ctlr->channels = 4;
259 	    ctlr->ch_attach = ata_intel_31244_ch_attach;
260 	    ctlr->ch_detach = ata_intel_31244_ch_detach;
261 	    ctlr->reset = ata_intel_31244_reset;
262 	}
263 	ctlr->setmode = ata_sata_setmode;
264 	ctlr->getrev = ata_sata_getrev;
265     }
266     /* SCH */
267     else if (ctlr->chip->chipid == ATA_ISCH) {
268 	ctlr->channels = 1;
269 	ctlr->ch_attach = ata_intel_ch_attach;
270 	ctlr->ch_detach = ata_pci_ch_detach;
271 	ctlr->setmode = ata_intel_sch_setmode;
272     }
273     /* non SATA intel chips goes here */
274     else if (ctlr->chip->max_dma < ATA_SA150) {
275 	ctlr->channels = ctlr->chip->cfg2;
276 	ctlr->ch_attach = ata_intel_ch_attach;
277 	ctlr->ch_detach = ata_pci_ch_detach;
278 	ctlr->setmode = ata_intel_new_setmode;
279     }
280 
281     /* SATA parts can be either compat or AHCI */
282     else {
283 	/* force all ports active "the legacy way" */
284 	pci_write_config(dev, 0x92, pci_read_config(dev, 0x92, 2) | 0x0f, 2);
285 
286 	ctlr->ch_attach = ata_intel_ch_attach;
287 	ctlr->ch_detach = ata_pci_ch_detach;
288 	ctlr->reset = ata_intel_reset;
289 
290 	/*
291 	 * if we have AHCI capability and AHCI or RAID mode enabled
292 	 * in BIOS we try for AHCI mode
293 	 */
294 	if ((ctlr->chip->cfg1 & INTEL_AHCI) &&
295 	    (pci_read_config(dev, 0x90, 1) & 0xc0) &&
296 	    (ata_ahci_chipinit(dev) != ENXIO))
297 	    return 0;
298 
299 	/* BAR(5) may point to SATA interface registers */
300 	if ((ctlr->chip->cfg1 & INTEL_ICH7)) {
301 		ctlr->r_type2 = SYS_RES_MEMORY;
302 		ctlr->r_rid2 = PCIR_BAR(5);
303 		ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
304 		    &ctlr->r_rid2, RF_ACTIVE);
305 		if (ctlr->r_res2 != NULL) {
306 			/* Set SCRAE bit to enable registers access. */
307 			pci_write_config(dev, 0x94,
308 			    pci_read_config(dev, 0x94, 4) | (1 << 9), 4);
309 			/* Set Ports Implemented register bits. */
310 			ATA_OUTL(ctlr->r_res2, 0x0C,
311 			    ATA_INL(ctlr->r_res2, 0x0C) | 0xf);
312 		}
313 	/* Skip BAR(5) on ICH8M Apples, system locks up on access. */
314 	} else if (ctlr->chip->chipid != ATA_I82801HBM_S1 ||
315 	    pci_get_subvendor(dev) != 0x106b) {
316 		ctlr->r_type2 = SYS_RES_IOPORT;
317 		ctlr->r_rid2 = PCIR_BAR(5);
318 		ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
319 		    &ctlr->r_rid2, RF_ACTIVE);
320 	}
321 	if (ctlr->r_res2 != NULL ||
322 	    (ctlr->chip->cfg1 & INTEL_ICH5))
323 		ctlr->getrev = ata_intel_sata_getrev;
324 	ctlr->setmode = ata_sata_setmode;
325     }
326     return 0;
327 }
328 
329 static int
330 ata_intel_chipdeinit(device_t dev)
331 {
332 	struct ata_pci_controller *ctlr = device_get_softc(dev);
333 	struct ata_intel_data *data;
334 
335 	data = ctlr->chipset_data;
336 	mtx_destroy(&data->lock);
337 	free(data, M_ATAPCI);
338 	ctlr->chipset_data = NULL;
339 	return (0);
340 }
341 
342 static int
343 ata_intel_ch_attach(device_t dev)
344 {
345 	struct ata_pci_controller *ctlr;
346 	struct ata_channel *ch;
347 	u_char *smap;
348 	u_int map;
349 
350 	/* setup the usual register normal pci style */
351 	if (ata_pci_ch_attach(dev))
352 		return (ENXIO);
353 
354 	ctlr = device_get_softc(device_get_parent(dev));
355 	ch = device_get_softc(dev);
356 
357 	/* if r_res2 is valid it points to SATA interface registers */
358 	if (ctlr->r_res2) {
359 		ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
360 		ch->r_io[ATA_IDX_ADDR].offset = 0x00;
361 		ch->r_io[ATA_IDX_DATA].res = ctlr->r_res2;
362 		ch->r_io[ATA_IDX_DATA].offset = 0x04;
363 	}
364 
365 	ch->flags |= ATA_ALWAYS_DMASTAT;
366 	if (ctlr->chip->max_dma >= ATA_SA150) {
367 		smap = ATA_INTEL_SMAP(ctlr, ch);
368 		map = pci_read_config(device_get_parent(dev), 0x90, 1);
369 		if (ctlr->chip->cfg1 & INTEL_ICH5) {
370 			map &= 0x07;
371 			if ((map & 0x04) == 0) {
372 				ch->flags |= ATA_SATA;
373 				ch->flags |= ATA_NO_SLAVE;
374 				smap[0] = (map & 0x01) ^ ch->unit;
375 				smap[1] = 0;
376 			} else if ((map & 0x02) == 0 && ch->unit == 0) {
377 				ch->flags |= ATA_SATA;
378 				smap[0] = (map & 0x01) ? 1 : 0;
379 				smap[1] = (map & 0x01) ? 0 : 1;
380 			} else if ((map & 0x02) != 0 && ch->unit == 1) {
381 				ch->flags |= ATA_SATA;
382 				smap[0] = (map & 0x01) ? 1 : 0;
383 				smap[1] = (map & 0x01) ? 0 : 1;
384 			}
385 		} else if (ctlr->chip->cfg1 & INTEL_6CH2) {
386 			ch->flags |= ATA_SATA;
387 			ch->flags |= ATA_NO_SLAVE;
388 			smap[0] = (ch->unit == 0) ? 0 : 1;
389 			smap[1] = 0;
390 		} else {
391 			map &= 0x03;
392 			if (map == 0x00) {
393 				ch->flags |= ATA_SATA;
394 				smap[0] = (ch->unit == 0) ? 0 : 1;
395 				smap[1] = (ch->unit == 0) ? 2 : 3;
396 			} else if (map == 0x02 && ch->unit == 0) {
397 				ch->flags |= ATA_SATA;
398 				smap[0] = 0;
399 				smap[1] = 2;
400 			} else if (map == 0x01 && ch->unit == 1) {
401 				ch->flags |= ATA_SATA;
402 				smap[0] = 1;
403 				smap[1] = 3;
404 			}
405 		}
406 		if (ch->flags & ATA_SATA) {
407 			if ((ctlr->chip->cfg1 & INTEL_ICH5)) {
408 				ch->flags |= ATA_PERIODIC_POLL;
409 				ch->hw.status = ata_intel_sata_status;
410 				ch->hw.pm_read = ata_intel_sata_cscr_read;
411 				ch->hw.pm_write = ata_intel_sata_cscr_write;
412 			} else if (ctlr->r_res2) {
413 				ch->flags |= ATA_PERIODIC_POLL;
414 				ch->hw.status = ata_intel_sata_status;
415 				if ((ctlr->chip->cfg1 & INTEL_ICH7)) {
416 					ch->hw.pm_read = ata_intel_sata_ahci_read;
417 					ch->hw.pm_write = ata_intel_sata_ahci_write;
418 				} else {
419 					ch->hw.pm_read = ata_intel_sata_sidpr_read;
420 					ch->hw.pm_write = ata_intel_sata_sidpr_write;
421 				};
422 			}
423 			if (ch->hw.pm_write != NULL) {
424 				ata_sata_scr_write(ch, 0,
425 				    ATA_SERROR, 0xffffffff);
426 				if ((ch->flags & ATA_NO_SLAVE) == 0) {
427 					ata_sata_scr_write(ch, 1,
428 					    ATA_SERROR, 0xffffffff);
429 				}
430 			}
431 		} else
432 			ctlr->setmode = ata_intel_new_setmode;
433 	} else if (ctlr->chip->chipid != ATA_ISCH)
434 		ch->flags |= ATA_CHECKS_CABLE;
435 	return (0);
436 }
437 
438 static void
439 ata_intel_reset(device_t dev)
440 {
441 	device_t parent = device_get_parent(dev);
442 	struct ata_pci_controller *ctlr = device_get_softc(parent);
443 	struct ata_channel *ch = device_get_softc(dev);
444 	int mask, pshift, timeout, devs;
445 	u_char *smap;
446 	uint16_t pcs;
447 
448 	/* In combined mode, skip SATA stuff for PATA channel. */
449 	if ((ch->flags & ATA_SATA) == 0)
450 		return (ata_generic_reset(dev));
451 
452 	/* Do hard-reset on respective SATA ports. */
453 	smap = ATA_INTEL_SMAP(ctlr, ch);
454 	mask = 1 << smap[0];
455 	if ((ch->flags & ATA_NO_SLAVE) == 0)
456 		mask |= (1 << smap[1]);
457 	pci_write_config(parent, 0x92,
458 	    pci_read_config(parent, 0x92, 2) & ~mask, 2);
459 	DELAY(10);
460 	pci_write_config(parent, 0x92,
461 	    pci_read_config(parent, 0x92, 2) | mask, 2);
462 
463 	/* Wait up to 1 sec for "connect well". */
464 	if (ctlr->chip->cfg1 & (INTEL_6CH | INTEL_6CH2))
465 		pshift = 8;
466 	else
467 		pshift = 4;
468 	for (timeout = 0; timeout < 100 ; timeout++) {
469 		pcs = (pci_read_config(parent, 0x92, 2) >> pshift) & mask;
470 		if ((pcs == mask) && (ATA_IDX_INB(ch, ATA_STATUS) != 0xff))
471 			break;
472 		ata_udelay(10000);
473 	}
474 
475 	if (bootverbose)
476 		device_printf(dev, "SATA reset: ports status=0x%02x\n", pcs);
477 	/* If any device found, do soft-reset. */
478 	if (ch->hw.pm_read != NULL) {
479 		devs = ata_sata_phy_reset(dev, 0, 2) ? ATA_ATA_MASTER : 0;
480 		if ((ch->flags & ATA_NO_SLAVE) == 0)
481 			devs |= ata_sata_phy_reset(dev, 1, 2) ?
482 			    ATA_ATA_SLAVE : 0;
483 	} else {
484 		devs = (pcs & (1 << smap[0])) ? ATA_ATA_MASTER : 0;
485 		if ((ch->flags & ATA_NO_SLAVE) == 0)
486 			devs |= (pcs & (1 << smap[1])) ?
487 			    ATA_ATA_SLAVE : 0;
488 	}
489 	if (devs) {
490 		ata_generic_reset(dev);
491 		/* Reset may give fake slave when only ATAPI master present. */
492 		ch->devices &= (devs | (devs * ATA_ATAPI_MASTER));
493 	} else
494 		ch->devices = 0;
495 }
496 
497 static int
498 ata_intel_old_setmode(device_t dev, int target, int mode)
499 {
500 	device_t parent = device_get_parent(dev);
501 	struct ata_pci_controller *ctlr = device_get_softc(parent);
502 
503 	mode = min(mode, ctlr->chip->max_dma);
504 	return (mode);
505 }
506 
507 static int
508 ata_intel_new_setmode(device_t dev, int target, int mode)
509 {
510 	device_t parent = device_get_parent(dev);
511 	struct ata_pci_controller *ctlr = device_get_softc(parent);
512 	struct ata_channel *ch = device_get_softc(dev);
513 	int devno = (ch->unit << 1) + target;
514 	int piomode;
515 	u_int32_t reg40 = pci_read_config(parent, 0x40, 4);
516 	u_int8_t reg44 = pci_read_config(parent, 0x44, 1);
517 	u_int8_t reg48 = pci_read_config(parent, 0x48, 1);
518 	u_int16_t reg4a = pci_read_config(parent, 0x4a, 2);
519 	u_int16_t reg54 = pci_read_config(parent, 0x54, 2);
520 	u_int32_t mask40 = 0, new40 = 0;
521 	u_int8_t mask44 = 0, new44 = 0;
522 	u_int8_t timings[] = { 0x00, 0x00, 0x10, 0x21, 0x23, 0x00, 0x21, 0x23 };
523 	u_int8_t utimings[] = { 0x00, 0x01, 0x02, 0x01, 0x02, 0x01, 0x02 };
524 
525 	/* In combined mode, skip PATA stuff for SATA channel. */
526 	if (ch->flags & ATA_SATA)
527 		return (ata_sata_setmode(dev, target, mode));
528 
529 	mode = min(mode, ctlr->chip->max_dma);
530 	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
531 	    !(reg54 & (0x10 << devno))) {
532 		ata_print_cable(dev, "controller");
533 		mode = ATA_UDMA2;
534 	}
535 	/* Enable/disable UDMA and set timings. */
536 	if (mode >= ATA_UDMA0) {
537 	    pci_write_config(parent, 0x48, reg48 | (0x0001 << devno), 2);
538 	    pci_write_config(parent, 0x4a,
539 		(reg4a & ~(0x3 << (devno << 2))) |
540 		(utimings[mode & ATA_MODE_MASK] << (devno<<2)), 2);
541 	    piomode = ATA_PIO4;
542 	} else {
543 	    pci_write_config(parent, 0x48, reg48 & ~(0x0001 << devno), 2);
544 	    pci_write_config(parent, 0x4a, (reg4a & ~(0x3 << (devno << 2))),2);
545 	    piomode = mode;
546 	}
547 	reg54 |= 0x0400;
548 	/* Set UDMA reference clock (33/66/133MHz). */
549 	reg54 &= ~(0x1001 << devno);
550 	if (mode >= ATA_UDMA5)
551 	    reg54 |= (0x1000 << devno);
552 	else if (mode >= ATA_UDMA3)
553 	    reg54 |= (0x1 << devno);
554 	pci_write_config(parent, 0x54, reg54, 2);
555 	/* Allow PIO/WDMA timing controls. */
556 	reg40 &= ~0x00ff00ff;
557 	reg40 |= 0x40774077;
558 	/* Set PIO/WDMA timings. */
559 	if (target == 0) {
560 	    mask40 = 0x3300;
561 	    new40 = timings[ata_mode2idx(piomode)] << 8;
562 	} else {
563 	    mask44 = 0x0f;
564 	    new44 = ((timings[ata_mode2idx(piomode)] & 0x30) >> 2) |
565 		    (timings[ata_mode2idx(piomode)] & 0x03);
566 	}
567 	if (ch->unit) {
568 	    mask40 <<= 16;
569 	    new40 <<= 16;
570 	    mask44 <<= 4;
571 	    new44 <<= 4;
572 	}
573 	pci_write_config(parent, 0x40, (reg40 & ~mask40) | new40, 4);
574 	pci_write_config(parent, 0x44, (reg44 & ~mask44) | new44, 1);
575 	return (mode);
576 }
577 
578 static int
579 ata_intel_sch_setmode(device_t dev, int target, int mode)
580 {
581 	device_t parent = device_get_parent(dev);
582 	struct ata_pci_controller *ctlr = device_get_softc(parent);
583 	u_int8_t dtim = 0x80 + (target << 2);
584 	u_int32_t tim = pci_read_config(parent, dtim, 4);
585 	int piomode;
586 
587 	mode = min(mode, ctlr->chip->max_dma);
588 	if (mode >= ATA_UDMA0) {
589 		tim |= (0x1 << 31);
590 		tim &= ~(0x7 << 16);
591 		tim |= ((mode & ATA_MODE_MASK) << 16);
592 		piomode = ATA_PIO4;
593 	} else if (mode >= ATA_WDMA0) {
594 		tim &= ~(0x1 << 31);
595 		tim &= ~(0x3 << 8);
596 		tim |= ((mode & ATA_MODE_MASK) << 8);
597 		piomode = (mode == ATA_WDMA0) ? ATA_PIO0 :
598 		    (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4;
599 	} else
600 		piomode = mode;
601 	tim &= ~(0x7);
602 	tim |= (piomode & 0x7);
603 	pci_write_config(parent, dtim, tim, 4);
604 	return (mode);
605 }
606 
607 static int
608 ata_intel_sata_getrev(device_t dev, int target)
609 {
610 	struct ata_channel *ch = device_get_softc(dev);
611 	uint32_t status;
612 
613 	if (ata_sata_scr_read(ch, target, ATA_SSTATUS, &status) == 0)
614 		return ((status & 0x0f0) >> 4);
615 	return (0xff);
616 }
617 
618 static int
619 ata_intel_sata_status(device_t dev)
620 {
621 	struct ata_channel *ch = device_get_softc(dev);
622 
623 	ata_sata_phy_check_events(dev, 0);
624 	if ((ch->flags & ATA_NO_SLAVE) == 0)
625 		ata_sata_phy_check_events(dev, 1);
626 
627 	return ata_pci_status(dev);
628 }
629 
630 static int
631 ata_intel_sata_ahci_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 	int offset;
638 
639 	parent = device_get_parent(dev);
640 	ctlr = device_get_softc(parent);
641 	ch = device_get_softc(dev);
642 	port = (port == 1) ? 1 : 0;
643 	smap = ATA_INTEL_SMAP(ctlr, ch);
644 	offset = 0x100 + smap[port] * 0x80;
645 	switch (reg) {
646 	case ATA_SSTATUS:
647 	    reg = 0x28;
648 	    break;
649 	case ATA_SCONTROL:
650 	    reg = 0x2c;
651 	    break;
652 	case ATA_SERROR:
653 	    reg = 0x30;
654 	    break;
655 	default:
656 	    return (EINVAL);
657 	}
658 	*result = ATA_INL(ctlr->r_res2, offset + reg);
659 	return (0);
660 }
661 
662 static int
663 ata_intel_sata_cscr_read(device_t dev, int port, int reg, u_int32_t *result)
664 {
665 	struct ata_pci_controller *ctlr;
666 	struct ata_channel *ch;
667 	device_t parent;
668 	u_char *smap;
669 
670 	parent = device_get_parent(dev);
671 	ctlr = device_get_softc(parent);
672 	ch = device_get_softc(dev);
673 	smap = ATA_INTEL_SMAP(ctlr, ch);
674 	port = (port == 1) ? 1 : 0;
675 	switch (reg) {
676 	case ATA_SSTATUS:
677 	    reg = 0;
678 	    break;
679 	case ATA_SERROR:
680 	    reg = 1;
681 	    break;
682 	case ATA_SCONTROL:
683 	    reg = 2;
684 	    break;
685 	default:
686 	    return (EINVAL);
687 	}
688 	ATA_INTEL_LOCK(ctlr);
689 	pci_write_config(parent, 0xa0,
690 	    0x50 + smap[port] * 0x10 + reg * 4, 4);
691 	*result = pci_read_config(parent, 0xa4, 4);
692 	ATA_INTEL_UNLOCK(ctlr);
693 	return (0);
694 }
695 
696 static int
697 ata_intel_sata_sidpr_read(device_t dev, int port, int reg, u_int32_t *result)
698 {
699 	struct ata_pci_controller *ctlr;
700 	struct ata_channel *ch;
701 	device_t parent;
702 
703 	parent = device_get_parent(dev);
704 	ctlr = device_get_softc(parent);
705 	ch = device_get_softc(dev);
706 	port = (port == 1) ? 1 : 0;
707 	switch (reg) {
708 	case ATA_SSTATUS:
709 	    reg = 0;
710 	    break;
711 	case ATA_SCONTROL:
712 	    reg = 1;
713 	    break;
714 	case ATA_SERROR:
715 	    reg = 2;
716 	    break;
717 	default:
718 	    return (EINVAL);
719 	}
720 	ATA_INTEL_LOCK(ctlr);
721 	ATA_IDX_OUTL(ch, ATA_IDX_ADDR, ((ch->unit * 2 + port) << 8) + reg);
722 	*result = ATA_IDX_INL(ch, ATA_IDX_DATA);
723 	ATA_INTEL_UNLOCK(ctlr);
724 	return (0);
725 }
726 
727 static int
728 ata_intel_sata_ahci_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 	int offset;
735 
736 	parent = device_get_parent(dev);
737 	ctlr = device_get_softc(parent);
738 	ch = device_get_softc(dev);
739 	port = (port == 1) ? 1 : 0;
740 	smap = ATA_INTEL_SMAP(ctlr, ch);
741 	offset = 0x100 + smap[port] * 0x80;
742 	switch (reg) {
743 	case ATA_SSTATUS:
744 	    reg = 0x28;
745 	    break;
746 	case ATA_SCONTROL:
747 	    reg = 0x2c;
748 	    break;
749 	case ATA_SERROR:
750 	    reg = 0x30;
751 	    break;
752 	default:
753 	    return (EINVAL);
754 	}
755 	ATA_OUTL(ctlr->r_res2, offset + reg, value);
756 	return (0);
757 }
758 
759 static int
760 ata_intel_sata_cscr_write(device_t dev, int port, int reg, u_int32_t value)
761 {
762 	struct ata_pci_controller *ctlr;
763 	struct ata_channel *ch;
764 	device_t parent;
765 	u_char *smap;
766 
767 	parent = device_get_parent(dev);
768 	ctlr = device_get_softc(parent);
769 	ch = device_get_softc(dev);
770 	smap = ATA_INTEL_SMAP(ctlr, ch);
771 	port = (port == 1) ? 1 : 0;
772 	switch (reg) {
773 	case ATA_SSTATUS:
774 	    reg = 0;
775 	    break;
776 	case ATA_SERROR:
777 	    reg = 1;
778 	    break;
779 	case ATA_SCONTROL:
780 	    reg = 2;
781 	    break;
782 	default:
783 	    return (EINVAL);
784 	}
785 	ATA_INTEL_LOCK(ctlr);
786 	pci_write_config(parent, 0xa0,
787 	    0x50 + smap[port] * 0x10 + reg * 4, 4);
788 	pci_write_config(parent, 0xa4, value, 4);
789 	ATA_INTEL_UNLOCK(ctlr);
790 	return (0);
791 }
792 
793 static int
794 ata_intel_sata_sidpr_write(device_t dev, int port, int reg, u_int32_t value)
795 {
796 	struct ata_pci_controller *ctlr;
797 	struct ata_channel *ch;
798 	device_t parent;
799 
800 	parent = device_get_parent(dev);
801 	ctlr = device_get_softc(parent);
802 	ch = device_get_softc(dev);
803 	port = (port == 1) ? 1 : 0;
804 	switch (reg) {
805 	case ATA_SSTATUS:
806 	    reg = 0;
807 	    break;
808 	case ATA_SCONTROL:
809 	    reg = 1;
810 	    break;
811 	case ATA_SERROR:
812 	    reg = 2;
813 	    break;
814 	default:
815 	    return (EINVAL);
816 	}
817 	ATA_INTEL_LOCK(ctlr);
818 	ATA_IDX_OUTL(ch, ATA_IDX_ADDR, ((ch->unit * 2 + port) << 8) + reg);
819 	ATA_IDX_OUTL(ch, ATA_IDX_DATA, value);
820 	ATA_INTEL_UNLOCK(ctlr);
821 	return (0);
822 }
823 
824 static int
825 ata_intel_31244_ch_attach(device_t dev)
826 {
827     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
828     struct ata_channel *ch = device_get_softc(dev);
829     int i;
830     int ch_offset;
831 
832     ata_pci_dmainit(dev);
833 
834     ch_offset = 0x200 + ch->unit * 0x200;
835 
836     for (i = ATA_DATA; i < ATA_MAX_RES; i++)
837 	ch->r_io[i].res = ctlr->r_res2;
838 
839     /* setup ATA registers */
840     ch->r_io[ATA_DATA].offset = ch_offset + 0x00;
841     ch->r_io[ATA_FEATURE].offset = ch_offset + 0x06;
842     ch->r_io[ATA_COUNT].offset = ch_offset + 0x08;
843     ch->r_io[ATA_SECTOR].offset = ch_offset + 0x0c;
844     ch->r_io[ATA_CYL_LSB].offset = ch_offset + 0x10;
845     ch->r_io[ATA_CYL_MSB].offset = ch_offset + 0x14;
846     ch->r_io[ATA_DRIVE].offset = ch_offset + 0x18;
847     ch->r_io[ATA_COMMAND].offset = ch_offset + 0x1d;
848     ch->r_io[ATA_ERROR].offset = ch_offset + 0x04;
849     ch->r_io[ATA_STATUS].offset = ch_offset + 0x1c;
850     ch->r_io[ATA_ALTSTAT].offset = ch_offset + 0x28;
851     ch->r_io[ATA_CONTROL].offset = ch_offset + 0x29;
852 
853     /* setup DMA registers */
854     ch->r_io[ATA_SSTATUS].offset = ch_offset + 0x100;
855     ch->r_io[ATA_SERROR].offset = ch_offset + 0x104;
856     ch->r_io[ATA_SCONTROL].offset = ch_offset + 0x108;
857 
858     /* setup SATA registers */
859     ch->r_io[ATA_BMCMD_PORT].offset = ch_offset + 0x70;
860     ch->r_io[ATA_BMSTAT_PORT].offset = ch_offset + 0x72;
861     ch->r_io[ATA_BMDTP_PORT].offset = ch_offset + 0x74;
862 
863     ch->flags |= ATA_NO_SLAVE;
864     ch->flags |= ATA_SATA;
865     ata_pci_hw(dev);
866     ch->hw.status = ata_intel_31244_status;
867     ch->hw.tf_write = ata_intel_31244_tf_write;
868 
869     /* enable PHY state change interrupt */
870     ATA_OUTL(ctlr->r_res2, 0x4,
871 	     ATA_INL(ctlr->r_res2, 0x04) | (0x01 << (ch->unit << 3)));
872     return 0;
873 }
874 
875 static int
876 ata_intel_31244_ch_detach(device_t dev)
877 {
878 
879     ata_pci_dmafini(dev);
880     return (0);
881 }
882 
883 static int
884 ata_intel_31244_status(device_t dev)
885 {
886     /* do we have any PHY events ? */
887     ata_sata_phy_check_events(dev, -1);
888 
889     /* any drive action to take care of ? */
890     return ata_pci_status(dev);
891 }
892 
893 static void
894 ata_intel_31244_tf_write(struct ata_request *request)
895 {
896     struct ata_channel *ch = device_get_softc(request->parent);
897 #ifndef ATA_CAM
898     struct ata_device *atadev = device_get_softc(request->dev);
899 #endif
900 
901     if (request->flags & ATA_R_48BIT) {
902 	ATA_IDX_OUTW(ch, ATA_FEATURE, request->u.ata.feature);
903 	ATA_IDX_OUTW(ch, ATA_COUNT, request->u.ata.count);
904 	ATA_IDX_OUTW(ch, ATA_SECTOR, ((request->u.ata.lba >> 16) & 0xff00) |
905 				      (request->u.ata.lba & 0x00ff));
906 	ATA_IDX_OUTW(ch, ATA_CYL_LSB, ((request->u.ata.lba >> 24) & 0xff00) |
907 				       ((request->u.ata.lba >> 8) & 0x00ff));
908 	ATA_IDX_OUTW(ch, ATA_CYL_MSB, ((request->u.ata.lba >> 32) & 0xff00) |
909 				       ((request->u.ata.lba >> 16) & 0x00ff));
910 	ATA_IDX_OUTW(ch, ATA_DRIVE, ATA_D_LBA | ATA_DEV(request->unit));
911     }
912     else {
913 	ATA_IDX_OUTB(ch, ATA_FEATURE, request->u.ata.feature);
914 	ATA_IDX_OUTB(ch, ATA_COUNT, request->u.ata.count);
915 #ifndef ATA_CAM
916 	if (atadev->flags & ATA_D_USE_CHS) {
917 	    int heads, sectors;
918 
919 	    if (atadev->param.atavalid & ATA_FLAG_54_58) {
920 		heads = atadev->param.current_heads;
921 		sectors = atadev->param.current_sectors;
922 	    }
923 	    else {
924 		heads = atadev->param.heads;
925 		sectors = atadev->param.sectors;
926 	    }
927 	    ATA_IDX_OUTB(ch, ATA_SECTOR, (request->u.ata.lba % sectors)+1);
928 	    ATA_IDX_OUTB(ch, ATA_CYL_LSB,
929 			 (request->u.ata.lba / (sectors * heads)));
930 	    ATA_IDX_OUTB(ch, ATA_CYL_MSB,
931 			 (request->u.ata.lba / (sectors * heads)) >> 8);
932 	    ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_DEV(request->unit) |
933 			 (((request->u.ata.lba% (sectors * heads)) /
934 			   sectors) & 0xf));
935 	}
936 	else {
937 #endif
938 	    ATA_IDX_OUTB(ch, ATA_SECTOR, request->u.ata.lba);
939 	    ATA_IDX_OUTB(ch, ATA_CYL_LSB, request->u.ata.lba >> 8);
940 	    ATA_IDX_OUTB(ch, ATA_CYL_MSB, request->u.ata.lba >> 16);
941 	    ATA_IDX_OUTB(ch, ATA_DRIVE,
942 			 ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit) |
943 			 ((request->u.ata.lba >> 24) & 0x0f));
944 #ifndef ATA_CAM
945 	}
946 #endif
947     }
948 }
949 
950 static void
951 ata_intel_31244_reset(device_t dev)
952 {
953     struct ata_channel *ch = device_get_softc(dev);
954 
955     if (ata_sata_phy_reset(dev, -1, 1))
956 	ata_generic_reset(dev);
957     else
958 	ch->devices = 0;
959 }
960 
961 ATA_DECLARE_DRIVER(ata_intel);
962 MODULE_DEPEND(ata_intel, ata_ahci, 1, 1, 1);
963