xref: /freebsd/sys/dev/ata/chipsets/ata-intel.c (revision 39beb93c)
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_intel_chipinit(device_t dev);
56 static int ata_intel_ch_attach(device_t dev);
57 static void ata_intel_reset(device_t dev);
58 static void ata_intel_old_setmode(device_t dev, int mode);
59 static void ata_intel_new_setmode(device_t dev, int mode);
60 static void ata_intel_sata_setmode(device_t dev, int mode);
61 static int ata_intel_31244_ch_attach(device_t dev);
62 static int ata_intel_31244_ch_detach(device_t dev);
63 static int ata_intel_31244_status(device_t dev);
64 static void ata_intel_31244_tf_write(struct ata_request *request);
65 static void ata_intel_31244_reset(device_t dev);
66 
67 /* misc defines */
68 #define INTEL_AHCI	1
69 
70 
71 /*
72  * Intel chipset support functions
73  */
74 static int
75 ata_intel_probe(device_t dev)
76 {
77     struct ata_pci_controller *ctlr = device_get_softc(dev);
78     static struct ata_chip_id ids[] =
79     {{ ATA_I82371FB,     0,          0, 2, ATA_WDMA2, "PIIX" },
80      { ATA_I82371SB,     0,          0, 2, ATA_WDMA2, "PIIX3" },
81      { ATA_I82371AB,     0,          0, 2, ATA_UDMA2, "PIIX4" },
82      { ATA_I82443MX,     0,          0, 2, ATA_UDMA2, "PIIX4" },
83      { ATA_I82451NX,     0,          0, 2, ATA_UDMA2, "PIIX4" },
84      { ATA_I82801AB,     0,          0, 2, ATA_UDMA2, "ICH0" },
85      { ATA_I82801AA,     0,          0, 2, ATA_UDMA4, "ICH" },
86      { ATA_I82372FB,     0,          0, 2, ATA_UDMA4, "ICH" },
87      { ATA_I82801BA,     0,          0, 2, ATA_UDMA5, "ICH2" },
88      { ATA_I82801BA_1,   0,          0, 2, ATA_UDMA5, "ICH2" },
89      { ATA_I82801CA,     0,          0, 2, ATA_UDMA5, "ICH3" },
90      { ATA_I82801CA_1,   0,          0, 2, ATA_UDMA5, "ICH3" },
91      { ATA_I82801DB,     0,          0, 2, ATA_UDMA5, "ICH4" },
92      { ATA_I82801DB_1,   0,          0, 2, ATA_UDMA5, "ICH4" },
93      { ATA_I82801EB,     0,          0, 2, ATA_UDMA5, "ICH5" },
94      { ATA_I82801EB_S1,  0,          0, 2, ATA_SA150, "ICH5" },
95      { ATA_I82801EB_R1,  0,          0, 2, ATA_SA150, "ICH5" },
96      { ATA_I6300ESB,     0,          0, 2, ATA_UDMA5, "6300ESB" },
97      { ATA_I6300ESB_S1,  0,          0, 2, ATA_SA150, "6300ESB" },
98      { ATA_I6300ESB_R1,  0,          0, 2, ATA_SA150, "6300ESB" },
99      { ATA_I82801FB,     0,          0, 2, ATA_UDMA5, "ICH6" },
100      { ATA_I82801FB_S1,  0, INTEL_AHCI, 0, ATA_SA150, "ICH6" },
101      { ATA_I82801FB_R1,  0, INTEL_AHCI, 0, ATA_SA150, "ICH6" },
102      { ATA_I82801FBM,    0, INTEL_AHCI, 0, ATA_SA150, "ICH6M" },
103      { ATA_I82801GB,     0,          0, 1, ATA_UDMA5, "ICH7" },
104      { ATA_I82801GB_S1,  0, INTEL_AHCI, 0, ATA_SA300, "ICH7" },
105      { ATA_I82801GB_R1,  0, INTEL_AHCI, 0, ATA_SA300, "ICH7" },
106      { ATA_I82801GB_AH,  0, INTEL_AHCI, 0, ATA_SA300, "ICH7" },
107      { ATA_I82801GBM_S1, 0, INTEL_AHCI, 0, ATA_SA300, "ICH7M" },
108      { ATA_I82801GBM_R1, 0, INTEL_AHCI, 0, ATA_SA300, "ICH7M" },
109      { ATA_I82801GBM_AH, 0, INTEL_AHCI, 0, ATA_SA300, "ICH7M" },
110      { ATA_I63XXESB2,    0,          0, 1, ATA_UDMA5, "63XXESB2" },
111      { ATA_I63XXESB2_S1, 0, INTEL_AHCI, 0, ATA_SA300, "63XXESB2" },
112      { ATA_I63XXESB2_S2, 0, INTEL_AHCI, 0, ATA_SA300, "63XXESB2" },
113      { ATA_I63XXESB2_R1, 0, INTEL_AHCI, 0, ATA_SA300, "63XXESB2" },
114      { ATA_I63XXESB2_R2, 0, INTEL_AHCI, 0, ATA_SA300, "63XXESB2" },
115      { ATA_I82801HB_S1,  0, INTEL_AHCI, 0, ATA_SA300, "ICH8" },
116      { ATA_I82801HB_S2,  0, INTEL_AHCI, 0, ATA_SA300, "ICH8" },
117      { ATA_I82801HB_R1,  0, INTEL_AHCI, 0, ATA_SA300, "ICH8" },
118      { ATA_I82801HB_AH4, 0, INTEL_AHCI, 0, ATA_SA300, "ICH8" },
119      { ATA_I82801HB_AH6, 0, INTEL_AHCI, 0, ATA_SA300, "ICH8" },
120      { ATA_I82801HBM,    0,          0, 1, ATA_UDMA5, "ICH8M" },
121      { ATA_I82801HBM_S1, 0, INTEL_AHCI, 0, ATA_SA300, "ICH8M" },
122      { ATA_I82801HBM_S2, 0, INTEL_AHCI, 0, ATA_SA300, "ICH8M" },
123      { ATA_I82801HBM_S3, 0, INTEL_AHCI, 0, ATA_SA300, "ICH8M" },
124      { ATA_I82801IB_S1,  0, INTEL_AHCI, 0, ATA_SA300, "ICH9" },
125      { ATA_I82801IB_S2,  0, INTEL_AHCI, 0, ATA_SA300, "ICH9" },
126      { ATA_I82801IB_AH2, 0, INTEL_AHCI, 0, ATA_SA300, "ICH9" },
127      { ATA_I82801IB_AH4, 0, INTEL_AHCI, 0, ATA_SA300, "ICH9" },
128      { ATA_I82801IB_AH6, 0, INTEL_AHCI, 0, ATA_SA300, "ICH9" },
129      { ATA_I82801IB_R1,  0, INTEL_AHCI, 0, ATA_SA300, "ICH9" },
130      { ATA_I82801JIB_S1, 0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
131      { ATA_I82801JIB_AH, 0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
132      { ATA_I82801JIB_R1, 0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
133      { ATA_I82801JIB_S2, 0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
134      { ATA_I82801JD_S1,  0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
135      { ATA_I82801JD_AH,  0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
136      { ATA_I82801JD_R1,  0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
137      { ATA_I82801JD_S2,  0, INTEL_AHCI, 0, ATA_SA300, "ICH10" },
138      { ATA_I31244,       0,          0, 2, ATA_SA150, "31244" },
139      { 0, 0, 0, 0, 0, 0}};
140 
141     if (pci_get_vendor(dev) != ATA_INTEL_ID)
142 	return ENXIO;
143 
144     if (!(ctlr->chip = ata_match_chip(dev, ids)))
145 	return ENXIO;
146 
147     ata_set_desc(dev);
148     ctlr->chipinit = ata_intel_chipinit;
149     return 0;
150 }
151 
152 static int
153 ata_intel_chipinit(device_t dev)
154 {
155     struct ata_pci_controller *ctlr = device_get_softc(dev);
156 
157     if (ata_setup_interrupt(dev, ata_generic_intr))
158 	return ENXIO;
159 
160     /* good old PIIX needs special treatment (not implemented) */
161     if (ctlr->chip->chipid == ATA_I82371FB) {
162 	ctlr->setmode = ata_intel_old_setmode;
163     }
164 
165     /* the intel 31244 needs special care if in DPA mode */
166     else if (ctlr->chip->chipid == ATA_I31244) {
167 	if (pci_get_subclass(dev) != PCIS_STORAGE_IDE) {
168 	    ctlr->r_type2 = SYS_RES_MEMORY;
169 	    ctlr->r_rid2 = PCIR_BAR(0);
170 	    if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
171 							&ctlr->r_rid2,
172 							RF_ACTIVE)))
173 		return ENXIO;
174 	    ctlr->channels = 4;
175 	    ctlr->ch_attach = ata_intel_31244_ch_attach;
176 	    ctlr->ch_detach = ata_intel_31244_ch_detach;
177 	    ctlr->reset = ata_intel_31244_reset;
178 	}
179 	ctlr->setmode = ata_sata_setmode;
180     }
181 
182     /* non SATA intel chips goes here */
183     else if (ctlr->chip->max_dma < ATA_SA150) {
184 	ctlr->channels = ctlr->chip->cfg2;
185 	ctlr->ch_attach = ata_intel_ch_attach;
186 	ctlr->ch_detach = ata_pci_ch_detach;
187 	ctlr->setmode = ata_intel_new_setmode;
188     }
189 
190     /* SATA parts can be either compat or AHCI */
191     else {
192 	/* force all ports active "the legacy way" */
193 	pci_write_config(dev, 0x92, pci_read_config(dev, 0x92, 2) | 0x0f, 2);
194 
195 	ctlr->ch_attach = ata_intel_ch_attach;
196 	ctlr->ch_detach = ata_pci_ch_detach;
197 	ctlr->reset = ata_intel_reset;
198 
199 	/*
200 	 * if we have AHCI capability and AHCI or RAID mode enabled
201 	 * in BIOS we try for AHCI mode
202 	 */
203 	if ((ctlr->chip->cfg1 == INTEL_AHCI) &&
204 	    (pci_read_config(dev, 0x90, 1) & 0xc0) &&
205 	    (ata_ahci_chipinit(dev) != ENXIO))
206 	    return 0;
207 
208 	/* if BAR(5) is IO it should point to SATA interface registers */
209 	ctlr->r_type2 = SYS_RES_IOPORT;
210 	ctlr->r_rid2 = PCIR_BAR(5);
211 	if ((ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
212 						   &ctlr->r_rid2, RF_ACTIVE)))
213 	    ctlr->setmode = ata_intel_sata_setmode;
214 	else
215 	    ctlr->setmode = ata_sata_setmode;
216 
217 	/* enable PCI interrupt */
218 	pci_write_config(dev, PCIR_COMMAND,
219 			 pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
220     }
221     return 0;
222 }
223 
224 static int
225 ata_intel_ch_attach(device_t dev)
226 {
227     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
228     struct ata_channel *ch = device_get_softc(dev);
229 
230     /* setup the usual register normal pci style */
231     if (ata_pci_ch_attach(dev))
232 	return ENXIO;
233 
234     /* if r_res2 is valid it points to SATA interface registers */
235     if (ctlr->r_res2) {
236 	ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
237 	ch->r_io[ATA_IDX_ADDR].offset = 0x00;
238 	ch->r_io[ATA_IDX_DATA].res = ctlr->r_res2;
239 	ch->r_io[ATA_IDX_DATA].offset = 0x04;
240     }
241 
242     ch->flags |= ATA_ALWAYS_DMASTAT;
243     return 0;
244 }
245 
246 static void
247 ata_intel_reset(device_t dev)
248 {
249     device_t parent = device_get_parent(dev);
250     struct ata_pci_controller *ctlr = device_get_softc(parent);
251     struct ata_channel *ch = device_get_softc(dev);
252     int mask, timeout;
253 
254     /* ICH6 & ICH7 in compat mode has 4 SATA ports as master/slave on 2 ch's */
255     if (ctlr->chip->cfg1) {
256 	mask = (0x0005 << ch->unit);
257     }
258     else {
259 	/* ICH5 in compat mode has SATA ports as master/slave on 1 channel */
260 	if (pci_read_config(parent, 0x90, 1) & 0x04)
261 	    mask = 0x0003;
262 	else {
263 	    mask = (0x0001 << ch->unit);
264 	    /* XXX SOS should be in intel_ch_attach if we grow it */
265 	    ch->flags |= ATA_NO_SLAVE;
266 	}
267     }
268     pci_write_config(parent, 0x92, pci_read_config(parent, 0x92, 2) & ~mask, 2);
269     DELAY(10);
270     pci_write_config(parent, 0x92, pci_read_config(parent, 0x92, 2) | mask, 2);
271 
272     /* wait up to 1 sec for "connect well" */
273     for (timeout = 0; timeout < 100 ; timeout++) {
274 	if (((pci_read_config(parent, 0x92, 2) & (mask << 4)) == (mask << 4)) &&
275 	    (ATA_IDX_INB(ch, ATA_STATUS) != 0xff))
276 	    break;
277 	ata_udelay(10000);
278     }
279     ata_generic_reset(dev);
280 }
281 
282 static void
283 ata_intel_old_setmode(device_t dev, int mode)
284 {
285     /* NOT YET */
286 }
287 
288 static void
289 ata_intel_new_setmode(device_t dev, int mode)
290 {
291     device_t gparent = GRANDPARENT(dev);
292     struct ata_pci_controller *ctlr = device_get_softc(gparent);
293     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
294     struct ata_device *atadev = device_get_softc(dev);
295     int devno = (ch->unit << 1) + atadev->unit;
296     u_int32_t reg40 = pci_read_config(gparent, 0x40, 4);
297     u_int8_t reg44 = pci_read_config(gparent, 0x44, 1);
298     u_int8_t reg48 = pci_read_config(gparent, 0x48, 1);
299     u_int16_t reg4a = pci_read_config(gparent, 0x4a, 2);
300     u_int16_t reg54 = pci_read_config(gparent, 0x54, 2);
301     u_int32_t mask40 = 0, new40 = 0;
302     u_int8_t mask44 = 0, new44 = 0;
303     int error;
304     u_int8_t timings[] = { 0x00, 0x00, 0x10, 0x21, 0x23, 0x10, 0x21, 0x23,
305 			   0x23, 0x23, 0x23, 0x23, 0x23, 0x23 };
306 
307     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
308 
309     if ( mode > ATA_UDMA2 && !(reg54 & (0x10 << devno))) {
310 	ata_print_cable(dev, "controller");
311 	mode = ATA_UDMA2;
312     }
313 
314     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
315 
316     if (bootverbose)
317 	device_printf(dev, "%ssetting %s on %s chip\n",
318 		      (error) ? "FAILURE " : "",
319 		      ata_mode2str(mode), ctlr->chip->text);
320     if (!error) {
321 	if (mode >= ATA_UDMA0) {
322 	    u_int8_t utimings[] = { 0x00, 0x01, 0x10, 0x01, 0x10, 0x01, 0x10 };
323 
324 	    pci_write_config(gparent, 0x48, reg48 | (0x0001 << devno), 2);
325 	    pci_write_config(gparent, 0x4a,
326 			     (reg4a & ~(0x3 << (devno << 2))) |
327 			     (utimings[mode & ATA_MODE_MASK] << (devno<<2)), 2);
328 	}
329 	else {
330 	    pci_write_config(gparent, 0x48, reg48 & ~(0x0001 << devno), 2);
331 	    pci_write_config(gparent, 0x4a, (reg4a & ~(0x3 << (devno << 2))),2);
332 	}
333 	reg54 |= 0x0400;
334 	if (mode >= ATA_UDMA2)
335 	    reg54 |= (0x1 << devno);
336 	else
337 	    reg54 &= ~(0x1 << devno);
338 	if (mode >= ATA_UDMA5)
339 	    reg54 |= (0x1000 << devno);
340 	else
341 	    reg54 &= ~(0x1000 << devno);
342 
343 	pci_write_config(gparent, 0x54, reg54, 2);
344 
345 	reg40 &= ~0x00ff00ff;
346 	reg40 |= 0x40774077;
347 
348 	if (atadev->unit == ATA_MASTER) {
349 	    mask40 = 0x3300;
350 	    new40 = timings[ata_mode2idx(mode)] << 8;
351 	}
352 	else {
353 	    mask44 = 0x0f;
354 	    new44 = ((timings[ata_mode2idx(mode)] & 0x30) >> 2) |
355 		    (timings[ata_mode2idx(mode)] & 0x03);
356 	}
357 	if (ch->unit) {
358 	    mask40 <<= 16;
359 	    new40 <<= 16;
360 	    mask44 <<= 4;
361 	    new44 <<= 4;
362 	}
363 	pci_write_config(gparent, 0x40, (reg40 & ~mask40) | new40, 4);
364 	pci_write_config(gparent, 0x44, (reg44 & ~mask44) | new44, 1);
365 
366 	atadev->mode = mode;
367     }
368 }
369 
370 static void
371 ata_intel_sata_setmode(device_t dev, int mode)
372 {
373     struct ata_device *atadev = device_get_softc(dev);
374 
375     if (atadev->param.satacapabilities != 0x0000 &&
376 	atadev->param.satacapabilities != 0xffff) {
377 
378 	struct ata_channel *ch = device_get_softc(device_get_parent(dev));
379 	int devno = (ch->unit << 1) + atadev->unit;
380 
381 	/* on some drives we need to set the transfer mode */
382 	ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0,
383 		       ata_limit_mode(dev, mode, ATA_UDMA6));
384 
385 	/* set ATA_SSTATUS register offset */
386 	ATA_IDX_OUTL(ch, ATA_IDX_ADDR, devno * 0x100);
387 
388 	/* query SATA STATUS for the speed */
389 	if ((ATA_IDX_INL(ch, ATA_IDX_DATA) & ATA_SS_CONWELL_MASK) ==
390 	    ATA_SS_CONWELL_GEN2)
391 	    atadev->mode = ATA_SA300;
392 	else
393 	    atadev->mode = ATA_SA150;
394     }
395     else {
396 	mode = ata_limit_mode(dev, mode, ATA_UDMA5);
397 	if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
398 	    atadev->mode = mode;
399     }
400 }
401 
402 static int
403 ata_intel_31244_ch_attach(device_t dev)
404 {
405     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
406     struct ata_channel *ch = device_get_softc(dev);
407     int i;
408     int ch_offset;
409 
410     ata_pci_dmainit(dev);
411 
412     ch_offset = 0x200 + ch->unit * 0x200;
413 
414     for (i = ATA_DATA; i < ATA_MAX_RES; i++)
415 	ch->r_io[i].res = ctlr->r_res2;
416 
417     /* setup ATA registers */
418     ch->r_io[ATA_DATA].offset = ch_offset + 0x00;
419     ch->r_io[ATA_FEATURE].offset = ch_offset + 0x06;
420     ch->r_io[ATA_COUNT].offset = ch_offset + 0x08;
421     ch->r_io[ATA_SECTOR].offset = ch_offset + 0x0c;
422     ch->r_io[ATA_CYL_LSB].offset = ch_offset + 0x10;
423     ch->r_io[ATA_CYL_MSB].offset = ch_offset + 0x14;
424     ch->r_io[ATA_DRIVE].offset = ch_offset + 0x18;
425     ch->r_io[ATA_COMMAND].offset = ch_offset + 0x1d;
426     ch->r_io[ATA_ERROR].offset = ch_offset + 0x04;
427     ch->r_io[ATA_STATUS].offset = ch_offset + 0x1c;
428     ch->r_io[ATA_ALTSTAT].offset = ch_offset + 0x28;
429     ch->r_io[ATA_CONTROL].offset = ch_offset + 0x29;
430 
431     /* setup DMA registers */
432     ch->r_io[ATA_SSTATUS].offset = ch_offset + 0x100;
433     ch->r_io[ATA_SERROR].offset = ch_offset + 0x104;
434     ch->r_io[ATA_SCONTROL].offset = ch_offset + 0x108;
435 
436     /* setup SATA registers */
437     ch->r_io[ATA_BMCMD_PORT].offset = ch_offset + 0x70;
438     ch->r_io[ATA_BMSTAT_PORT].offset = ch_offset + 0x72;
439     ch->r_io[ATA_BMDTP_PORT].offset = ch_offset + 0x74;
440 
441     ch->flags |= ATA_NO_SLAVE;
442     ata_pci_hw(dev);
443     ch->hw.status = ata_intel_31244_status;
444     ch->hw.tf_write = ata_intel_31244_tf_write;
445 
446     /* enable PHY state change interrupt */
447     ATA_OUTL(ctlr->r_res2, 0x4,
448 	     ATA_INL(ctlr->r_res2, 0x04) | (0x01 << (ch->unit << 3)));
449     return 0;
450 }
451 
452 static int
453 ata_intel_31244_ch_detach(device_t dev)
454 {
455 
456     ata_pci_dmafini(dev);
457     return (0);
458 }
459 
460 static int
461 ata_intel_31244_status(device_t dev)
462 {
463     /* do we have any PHY events ? */
464     ata_sata_phy_check_events(dev);
465 
466     /* any drive action to take care of ? */
467     return ata_pci_status(dev);
468 }
469 
470 static void
471 ata_intel_31244_tf_write(struct ata_request *request)
472 {
473     struct ata_channel *ch = device_get_softc(device_get_parent(request->dev));
474     struct ata_device *atadev = device_get_softc(request->dev);
475 
476     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
477 	ATA_IDX_OUTW(ch, ATA_FEATURE, request->u.ata.feature);
478 	ATA_IDX_OUTW(ch, ATA_COUNT, request->u.ata.count);
479 	ATA_IDX_OUTW(ch, ATA_SECTOR, ((request->u.ata.lba >> 16) & 0xff00) |
480 				      (request->u.ata.lba & 0x00ff));
481 	ATA_IDX_OUTW(ch, ATA_CYL_LSB, ((request->u.ata.lba >> 24) & 0xff00) |
482 				       ((request->u.ata.lba >> 8) & 0x00ff));
483 	ATA_IDX_OUTW(ch, ATA_CYL_MSB, ((request->u.ata.lba >> 32) & 0xff00) |
484 				       ((request->u.ata.lba >> 16) & 0x00ff));
485 	ATA_IDX_OUTW(ch, ATA_DRIVE, ATA_D_LBA | ATA_DEV(atadev->unit));
486     }
487     else {
488 	ATA_IDX_OUTB(ch, ATA_FEATURE, request->u.ata.feature);
489 	ATA_IDX_OUTB(ch, ATA_COUNT, request->u.ata.count);
490 	if (atadev->flags & ATA_D_USE_CHS) {
491 	    int heads, sectors;
492 
493 	    if (atadev->param.atavalid & ATA_FLAG_54_58) {
494 		heads = atadev->param.current_heads;
495 		sectors = atadev->param.current_sectors;
496 	    }
497 	    else {
498 		heads = atadev->param.heads;
499 		sectors = atadev->param.sectors;
500 	    }
501 	    ATA_IDX_OUTB(ch, ATA_SECTOR, (request->u.ata.lba % sectors)+1);
502 	    ATA_IDX_OUTB(ch, ATA_CYL_LSB,
503 			 (request->u.ata.lba / (sectors * heads)));
504 	    ATA_IDX_OUTB(ch, ATA_CYL_MSB,
505 			 (request->u.ata.lba / (sectors * heads)) >> 8);
506 	    ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_DEV(atadev->unit) |
507 			 (((request->u.ata.lba% (sectors * heads)) /
508 			   sectors) & 0xf));
509 	}
510 	else {
511 	    ATA_IDX_OUTB(ch, ATA_SECTOR, request->u.ata.lba);
512 	    ATA_IDX_OUTB(ch, ATA_CYL_LSB, request->u.ata.lba >> 8);
513 	    ATA_IDX_OUTB(ch, ATA_CYL_MSB, request->u.ata.lba >> 16);
514 	    ATA_IDX_OUTB(ch, ATA_DRIVE,
515 			 ATA_D_IBM | ATA_D_LBA | ATA_DEV(atadev->unit) |
516 			 ((request->u.ata.lba >> 24) & 0x0f));
517 	}
518     }
519 }
520 
521 static void
522 ata_intel_31244_reset(device_t dev)
523 {
524     if (ata_sata_phy_reset(dev))
525 	ata_generic_reset(dev);
526 }
527 
528 ATA_DECLARE_DRIVER(ata_intel);
529 MODULE_DEPEND(ata_intel, ata_ahci, 1, 1, 1);
530