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_cmd_ch_attach(device_t dev);
55 static int ata_cmd_status(device_t dev);
56 static int ata_cmd_setmode(device_t dev, int target, int mode);
57 static int ata_sii_ch_attach(device_t dev);
58 static int ata_sii_ch_detach(device_t dev);
59 static int ata_sii_status(device_t dev);
60 static void ata_sii_reset(device_t dev);
61 static int ata_sii_setmode(device_t dev, int target, int mode);
62 static int ata_siiprb_ch_attach(device_t dev);
63 static int ata_siiprb_ch_detach(device_t dev);
64 static int ata_siiprb_status(device_t dev);
65 static int ata_siiprb_begin_transaction(struct ata_request *request);
66 static int ata_siiprb_end_transaction(struct ata_request *request);
67 static int ata_siiprb_pm_read(device_t dev, int port, int reg, u_int32_t *result);
68 static int ata_siiprb_pm_write(device_t dev, int port, int reg, u_int32_t result);
69 static u_int32_t ata_siiprb_softreset(device_t dev, int port);
70 static void ata_siiprb_reset(device_t dev);
71 static void ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
72 static void ata_siiprb_dmainit(device_t dev);
73 
74 /* misc defines */
75 #define SII_MEMIO	1
76 #define SII_PRBIO	2
77 #define SII_INTR	0x01
78 #define SII_SETCLK	0x02
79 #define SII_BUG		0x04
80 #define SII_4CH		0x08
81 
82 /*
83  * Silicon Image Inc. (SiI) (former CMD) chipset support functions
84  */
85 static int
86 ata_sii_probe(device_t dev)
87 {
88     struct ata_pci_controller *ctlr = device_get_softc(dev);
89     static const struct ata_chip_id ids[] =
90     {{ ATA_SII3114,   0x00, SII_MEMIO, SII_4CH,    ATA_SA150, "3114" },
91      { ATA_SII3512,   0x02, SII_MEMIO, 0,          ATA_SA150, "3512" },
92      { ATA_SII3112,   0x02, SII_MEMIO, 0,          ATA_SA150, "3112" },
93      { ATA_SII3112_1, 0x02, SII_MEMIO, 0,          ATA_SA150, "3112" },
94      { ATA_SII3512,   0x00, SII_MEMIO, SII_BUG,    ATA_SA150, "3512" },
95      { ATA_SII3112,   0x00, SII_MEMIO, SII_BUG,    ATA_SA150, "3112" },
96      { ATA_SII3112_1, 0x00, SII_MEMIO, SII_BUG,    ATA_SA150, "3112" },
97      { ATA_SII3124,   0x00, SII_PRBIO, SII_4CH,    ATA_SA300, "3124" },
98      { ATA_SII3132,   0x00, SII_PRBIO, 0,          ATA_SA300, "3132" },
99      { ATA_SII3132_1, 0x00, SII_PRBIO, 0,          ATA_SA300, "3132" },
100      { ATA_SII3132_2, 0x00, SII_PRBIO, 0,          ATA_SA300, "3132" },
101      { ATA_SII0680,   0x00, SII_MEMIO, SII_SETCLK, ATA_UDMA6, "680" },
102      { ATA_CMD649,    0x00, 0,         SII_INTR,   ATA_UDMA5, "(CMD) 649" },
103      { ATA_CMD648,    0x00, 0,         SII_INTR,   ATA_UDMA4, "(CMD) 648" },
104      { ATA_CMD646,    0x07, 0,         0,          ATA_UDMA2, "(CMD) 646U2" },
105      { ATA_CMD646,    0x00, 0,         0,          ATA_WDMA2, "(CMD) 646" },
106      { 0, 0, 0, 0, 0, 0}};
107 
108     if (pci_get_vendor(dev) != ATA_SILICON_IMAGE_ID)
109 	return ENXIO;
110 
111     if (!(ctlr->chip = ata_match_chip(dev, ids)))
112 	return ENXIO;
113 
114     ata_set_desc(dev);
115     ctlr->chipinit = ata_sii_chipinit;
116     return (BUS_PROBE_DEFAULT);
117 }
118 
119 int
120 ata_sii_chipinit(device_t dev)
121 {
122     struct ata_pci_controller *ctlr = device_get_softc(dev);
123 
124     if (ata_setup_interrupt(dev, ata_generic_intr))
125 	return ENXIO;
126 
127     switch (ctlr->chip->cfg1) {
128     case SII_PRBIO:
129 	ctlr->r_type1 = SYS_RES_MEMORY;
130 	ctlr->r_rid1 = PCIR_BAR(0);
131 	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
132 						    &ctlr->r_rid1, RF_ACTIVE)))
133 	    return ENXIO;
134 
135 	ctlr->r_rid2 = PCIR_BAR(2);
136 	ctlr->r_type2 = SYS_RES_MEMORY;
137 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
138 						    &ctlr->r_rid2, RF_ACTIVE))){
139 	    bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1,ctlr->r_res1);
140 	    return ENXIO;
141 	}
142 #ifdef __sparc64__
143 	if (!bus_space_map(rman_get_bustag(ctlr->r_res2),
144 	    rman_get_bushandle(ctlr->r_res2), rman_get_size(ctlr->r_res2),
145 	    BUS_SPACE_MAP_LINEAR, NULL)) {
146 	    	bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1,
147 		    ctlr->r_res1);
148 		bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2,
149 		    ctlr->r_res2);
150 		return (ENXIO);
151 	}
152 #endif
153 	ctlr->ch_attach = ata_siiprb_ch_attach;
154 	ctlr->ch_detach = ata_siiprb_ch_detach;
155 	ctlr->reset = ata_siiprb_reset;
156 	ctlr->setmode = ata_sata_setmode;
157 	ctlr->getrev = ata_sata_getrev;
158 	ctlr->channels = (ctlr->chip->cfg2 == SII_4CH) ? 4 : 2;
159 
160 	/* reset controller */
161 	ATA_OUTL(ctlr->r_res1, 0x0040, 0x80000000);
162 	DELAY(10000);
163 	ATA_OUTL(ctlr->r_res1, 0x0040, 0x0000000f);
164 	break;
165 
166     case SII_MEMIO:
167 	ctlr->r_type2 = SYS_RES_MEMORY;
168 	ctlr->r_rid2 = PCIR_BAR(5);
169 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
170 						    &ctlr->r_rid2, RF_ACTIVE))){
171 	    if (ctlr->chip->chipid != ATA_SII0680 ||
172 			    (pci_read_config(dev, 0x8a, 1) & 1))
173 		return ENXIO;
174 	}
175 
176 	if (ctlr->chip->cfg2 & SII_SETCLK) {
177 	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
178 		pci_write_config(dev, 0x8a,
179 				 (pci_read_config(dev, 0x8a, 1) & 0xcf)|0x10,1);
180 	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
181 		device_printf(dev, "%s could not set ATA133 clock\n",
182 			      ctlr->chip->text);
183 	}
184 
185 	/* if we have 4 channels enable the second set */
186 	if (ctlr->chip->cfg2 & SII_4CH) {
187 	    ATA_OUTL(ctlr->r_res2, 0x0200, 0x00000002);
188 	    ctlr->channels = 4;
189 	}
190 
191 	/* dont block interrupts from any channel */
192 	pci_write_config(dev, 0x48,
193 			 (pci_read_config(dev, 0x48, 4) & ~0x03c00000), 4);
194 
195 	/* enable PCI interrupt as BIOS might not */
196 	pci_write_config(dev, 0x8a, (pci_read_config(dev, 0x8a, 1) & 0x3f), 1);
197 
198 	if (ctlr->r_res2) {
199 	    ctlr->ch_attach = ata_sii_ch_attach;
200 	    ctlr->ch_detach = ata_sii_ch_detach;
201 	}
202 
203 	if (ctlr->chip->max_dma >= ATA_SA150) {
204 	    ctlr->reset = ata_sii_reset;
205 	    ctlr->setmode = ata_sata_setmode;
206 	    ctlr->getrev = ata_sata_getrev;
207 	}
208 	else
209 	    ctlr->setmode = ata_sii_setmode;
210 	break;
211 
212     default:
213 	if ((pci_read_config(dev, 0x51, 1) & 0x08) != 0x08) {
214 	    device_printf(dev, "HW has secondary channel disabled\n");
215 	    ctlr->channels = 1;
216 	}
217 
218 	/* enable interrupt as BIOS might not */
219 	pci_write_config(dev, 0x71, 0x01, 1);
220 
221 	ctlr->ch_attach = ata_cmd_ch_attach;
222 	ctlr->ch_detach = ata_pci_ch_detach;
223 	ctlr->setmode = ata_cmd_setmode;
224 	break;
225     }
226     return 0;
227 }
228 
229 static int
230 ata_cmd_ch_attach(device_t dev)
231 {
232     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
233     struct ata_channel *ch = device_get_softc(dev);
234 
235     /* setup the usual register normal pci style */
236     if (ata_pci_ch_attach(dev))
237 	return ENXIO;
238 
239     if (ctlr->chip->cfg2 & SII_INTR)
240 	ch->hw.status = ata_cmd_status;
241 
242 	ch->flags |= ATA_NO_ATAPI_DMA;
243 
244     return 0;
245 }
246 
247 static int
248 ata_cmd_status(device_t dev)
249 {
250     struct ata_channel *ch = device_get_softc(dev);
251     u_int8_t reg71;
252 
253     if (((reg71 = pci_read_config(device_get_parent(dev), 0x71, 1)) &
254 	 (ch->unit ? 0x08 : 0x04))) {
255 	pci_write_config(device_get_parent(dev), 0x71,
256 			 reg71 & ~(ch->unit ? 0x04 : 0x08), 1);
257 	return ata_pci_status(dev);
258     }
259     return 0;
260 }
261 
262 static int
263 ata_cmd_setmode(device_t dev, int target, int mode)
264 {
265 	device_t parent = device_get_parent(dev);
266 	struct ata_pci_controller *ctlr = device_get_softc(parent);
267 	struct ata_channel *ch = device_get_softc(dev);
268 	int devno = (ch->unit << 1) + target;
269 	int treg = 0x54 + ((devno < 3) ? (devno << 1) : 7);
270 	int ureg = ch->unit ? 0x7b : 0x73;
271 	int piomode;
272 	static const uint8_t piotimings[] =
273 	    { 0xa9, 0x57, 0x44, 0x32, 0x3f, 0x87, 0x32, 0x3f };
274 	static const uint8_t udmatimings[][2] =
275 	    { { 0x31,  0xc2 }, { 0x21,  0x82 }, { 0x11,  0x42 },
276 	      { 0x25,  0x8a }, { 0x15,  0x4a }, { 0x05,  0x0a } };
277 
278 	mode = min(mode, ctlr->chip->max_dma);
279 	if (mode >= ATA_UDMA0) {
280 		u_int8_t umode = pci_read_config(parent, ureg, 1);
281 
282 	        umode &= ~(target == 0 ? 0x35 : 0xca);
283 		umode |= udmatimings[mode & ATA_MODE_MASK][target];
284 		pci_write_config(parent, ureg, umode, 1);
285 		piomode = ATA_PIO4;
286 	} else {
287 		pci_write_config(parent, ureg,
288 			     pci_read_config(parent, ureg, 1) &
289 			     ~(target == 0 ? 0x35 : 0xca), 1);
290 		piomode = mode;
291 	}
292 	pci_write_config(parent, treg, piotimings[ata_mode2idx(piomode)], 1);
293 	return (mode);
294 }
295 
296 static int
297 ata_sii_ch_attach(device_t dev)
298 {
299     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
300     struct ata_channel *ch = device_get_softc(dev);
301     int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2);
302     int i;
303 
304     for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
305 	ch->r_io[i].res = ctlr->r_res2;
306 	ch->r_io[i].offset = 0x80 + i + (unit01 << 6) + (unit10 << 8);
307     }
308     ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
309     ch->r_io[ATA_CONTROL].offset = 0x8a + (unit01 << 6) + (unit10 << 8);
310     ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
311     ata_default_registers(dev);
312 
313     ch->r_io[ATA_BMCMD_PORT].res = ctlr->r_res2;
314     ch->r_io[ATA_BMCMD_PORT].offset = 0x00 + (unit01 << 3) + (unit10 << 8);
315     ch->r_io[ATA_BMSTAT_PORT].res = ctlr->r_res2;
316     ch->r_io[ATA_BMSTAT_PORT].offset = 0x02 + (unit01 << 3) + (unit10 << 8);
317     ch->r_io[ATA_BMDTP_PORT].res = ctlr->r_res2;
318     ch->r_io[ATA_BMDTP_PORT].offset = 0x04 + (unit01 << 3) + (unit10 << 8);
319 
320     if (ctlr->chip->max_dma >= ATA_SA150) {
321 	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
322 	ch->r_io[ATA_SSTATUS].offset = 0x104 + (unit01 << 7) + (unit10 << 8);
323 	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
324 	ch->r_io[ATA_SERROR].offset = 0x108 + (unit01 << 7) + (unit10 << 8);
325 	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
326 	ch->r_io[ATA_SCONTROL].offset = 0x100 + (unit01 << 7) + (unit10 << 8);
327 	ch->flags |= ATA_NO_SLAVE;
328 	ch->flags |= ATA_SATA;
329 	ch->flags |= ATA_KNOWN_PRESENCE;
330 
331 	/* enable PHY state change interrupt */
332 	ATA_OUTL(ctlr->r_res2, 0x148 + (unit01 << 7) + (unit10 << 8),(1 << 16));
333     }
334 
335     if (ctlr->chip->cfg2 & SII_BUG) {
336 	/* work around errata in early chips */
337 	ch->dma.boundary = 8192;
338 	ch->dma.segsize = 15 * DEV_BSIZE;
339     }
340 
341     ata_pci_hw(dev);
342     ch->hw.status = ata_sii_status;
343     if (ctlr->chip->cfg2 & SII_SETCLK)
344 	ch->flags |= ATA_CHECKS_CABLE;
345 
346     ata_pci_dmainit(dev);
347 
348     return 0;
349 }
350 
351 static int
352 ata_sii_ch_detach(device_t dev)
353 {
354 
355     ata_pci_dmafini(dev);
356     return (0);
357 }
358 
359 static int
360 ata_sii_status(device_t dev)
361 {
362     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
363     struct ata_channel *ch = device_get_softc(dev);
364     int offset0 = ((ch->unit & 1) << 3) + ((ch->unit & 2) << 8);
365     int offset1 = ((ch->unit & 1) << 6) + ((ch->unit & 2) << 8);
366 
367     /* do we have any PHY events ? */
368     if (ctlr->chip->max_dma >= ATA_SA150 &&
369 	(ATA_INL(ctlr->r_res2, 0x10 + offset0) & 0x00000010))
370 	ata_sata_phy_check_events(dev, -1);
371 
372     if (ATA_INL(ctlr->r_res2, 0xa0 + offset1) & 0x00000800)
373 	return ata_pci_status(dev);
374     else
375 	return 0;
376 }
377 
378 static void
379 ata_sii_reset(device_t dev)
380 {
381     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
382     struct ata_channel *ch = device_get_softc(dev);
383     int offset = ((ch->unit & 1) << 7) + ((ch->unit & 2) << 8);
384     uint32_t val;
385 
386     /* Apply R_ERR on DMA activate FIS errata workaround. */
387     val = ATA_INL(ctlr->r_res2, 0x14c + offset);
388     if ((val & 0x3) == 0x1)
389 	ATA_OUTL(ctlr->r_res2, 0x14c + offset, val & ~0x3);
390 
391     if (ata_sata_phy_reset(dev, -1, 1))
392 	ata_generic_reset(dev);
393     else
394 	ch->devices = 0;
395 }
396 
397 static int
398 ata_sii_setmode(device_t dev, int target, int mode)
399 {
400 	device_t parent = device_get_parent(dev);
401 	struct ata_pci_controller *ctlr = device_get_softc(parent);
402 	struct ata_channel *ch = device_get_softc(dev);
403 	int rego = (ch->unit << 4) + (target << 1);
404 	int mreg = ch->unit ? 0x84 : 0x80;
405 	int mask = 0x03 << (target << 2);
406 	int mval = pci_read_config(parent, mreg, 1) & ~mask;
407 	int piomode;
408 	u_int8_t preg = 0xa4 + rego;
409 	u_int8_t dreg = 0xa8 + rego;
410 	u_int8_t ureg = 0xac + rego;
411 	static const uint16_t piotimings[] =
412 	    { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
413 	static const uint16_t dmatimings[] = { 0x2208, 0x10c2, 0x10c1 };
414 	static const uint8_t udmatimings[] =
415 	    { 0xf, 0xb, 0x7, 0x5, 0x3, 0x2, 0x1 };
416 
417 	mode = min(mode, ctlr->chip->max_dma);
418 
419 	if (ctlr->chip->cfg2 & SII_SETCLK) {
420 	    if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
421 		(pci_read_config(parent, 0x79, 1) &
422 				 (ch->unit ? 0x02 : 0x01))) {
423 		ata_print_cable(dev, "controller");
424 		mode = ATA_UDMA2;
425 	    }
426 	}
427 	if (mode >= ATA_UDMA0) {
428 		pci_write_config(parent, mreg,
429 			 mval | (0x03 << (target << 2)), 1);
430 		pci_write_config(parent, ureg,
431 			 (pci_read_config(parent, ureg, 1) & ~0x3f) |
432 			 udmatimings[mode & ATA_MODE_MASK], 1);
433 		piomode = ATA_PIO4;
434 	} else if (mode >= ATA_WDMA0) {
435 		pci_write_config(parent, mreg,
436 			 mval | (0x02 << (target << 2)), 1);
437 		pci_write_config(parent, dreg, dmatimings[mode & ATA_MODE_MASK], 2);
438 		piomode = (mode == ATA_WDMA0) ? ATA_PIO0 :
439 		    (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4;
440 	} else {
441 		pci_write_config(parent, mreg,
442 			 mval | (0x01 << (target << 2)), 1);
443 		piomode = mode;
444 	}
445 	pci_write_config(parent, preg, piotimings[ata_mode2idx(piomode)], 2);
446 	return (mode);
447 }
448 
449 struct ata_siiprb_dma_prdentry {
450     u_int64_t addr;
451     u_int32_t count;
452     u_int32_t control;
453 } __packed;
454 
455 #define ATA_SIIPRB_DMA_ENTRIES		129
456 struct ata_siiprb_ata_command {
457     struct ata_siiprb_dma_prdentry prd[ATA_SIIPRB_DMA_ENTRIES];
458 } __packed;
459 
460 struct ata_siiprb_atapi_command {
461     u_int8_t ccb[16];
462     struct ata_siiprb_dma_prdentry prd[ATA_SIIPRB_DMA_ENTRIES];
463 } __packed;
464 
465 struct ata_siiprb_command {
466     u_int16_t control;
467     u_int16_t protocol_override;
468     u_int32_t transfer_count;
469     u_int8_t fis[24];
470     union {
471 	struct ata_siiprb_ata_command ata;
472 	struct ata_siiprb_atapi_command atapi;
473     } u;
474 } __packed;
475 
476 static int
477 ata_siiprb_ch_attach(device_t dev)
478 {
479     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
480     struct ata_channel *ch = device_get_softc(dev);
481     int offset = ch->unit * 0x2000;
482 
483     ata_siiprb_dmainit(dev);
484 
485     /* set the SATA resources */
486     ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
487     ch->r_io[ATA_SSTATUS].offset = 0x1f04 + offset;
488     ch->r_io[ATA_SERROR].res = ctlr->r_res2;
489     ch->r_io[ATA_SERROR].offset = 0x1f08 + offset;
490     ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
491     ch->r_io[ATA_SCONTROL].offset = 0x1f00 + offset;
492     ch->r_io[ATA_SACTIVE].res = ctlr->r_res2;
493     ch->r_io[ATA_SACTIVE].offset = 0x1f0c + offset;
494 
495     ch->hw.status = ata_siiprb_status;
496     ch->hw.begin_transaction = ata_siiprb_begin_transaction;
497     ch->hw.end_transaction = ata_siiprb_end_transaction;
498     ch->hw.command = NULL;	/* not used here */
499     ch->hw.softreset = ata_siiprb_softreset;
500     ch->hw.pm_read = ata_siiprb_pm_read;
501     ch->hw.pm_write = ata_siiprb_pm_write;
502     ch->flags |= ATA_NO_SLAVE;
503     ch->flags |= ATA_SATA;
504     return 0;
505 }
506 
507 static int
508 ata_siiprb_ch_detach(device_t dev)
509 {
510     struct ata_channel *ch = device_get_softc(dev);
511 
512     if (ch->dma.work_tag && ch->dma.work_map)
513 	bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map,
514 	    BUS_DMASYNC_POSTWRITE);
515     ata_dmafini(dev);
516     return 0;
517 }
518 
519 static int
520 ata_siiprb_status(device_t dev)
521 {
522     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
523     struct ata_channel *ch = device_get_softc(dev);
524     u_int32_t action = ATA_INL(ctlr->r_res1, 0x0044);
525     int offset = ch->unit * 0x2000;
526 
527     if (action & (1 << ch->unit)) {
528 	u_int32_t istatus = ATA_INL(ctlr->r_res2, 0x1008 + offset);
529 
530 	/* do we have any PHY events ? */
531 	ata_sata_phy_check_events(dev, -1);
532 
533 	/* clear interrupt(s) */
534 	ATA_OUTL(ctlr->r_res2, 0x1008 + offset, istatus);
535 
536 	/* do we have any device action ? */
537 	return (istatus & 0x00000003);
538     }
539     return 0;
540 }
541 
542 static int
543 ata_siiprb_begin_transaction(struct ata_request *request)
544 {
545     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
546     struct ata_channel *ch = device_get_softc(request->parent);
547     struct ata_siiprb_command *prb;
548     struct ata_siiprb_dma_prdentry *prd;
549     int offset = ch->unit * 0x2000;
550     u_int64_t prb_bus;
551 
552     /* SOS XXX */
553     if (request->u.ata.command == ATA_DEVICE_RESET) {
554         request->result = 0;
555         return ATA_OP_FINISHED;
556     }
557 
558     /* get a piece of the workspace for this request */
559     prb = (struct ata_siiprb_command *)ch->dma.work;
560 
561     /* clear the prb structure */
562     bzero(prb, sizeof(struct ata_siiprb_command));
563 
564     /* setup the FIS for this request */
565     if (!ata_request2fis_h2d(request, &prb->fis[0])) {
566         device_printf(request->parent, "setting up SATA FIS failed\n");
567         request->result = EIO;
568         return ATA_OP_FINISHED;
569     }
570 
571     /* setup transfer type */
572     if (request->flags & ATA_R_ATAPI) {
573 	bcopy(request->u.atapi.ccb, prb->u.atapi.ccb, 16);
574 	if (request->flags & ATA_R_ATAPI16)
575 	    ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000020);
576 	else
577 	    ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000020);
578 	if (request->flags & ATA_R_READ)
579 	    prb->control = htole16(0x0010);
580 	if (request->flags & ATA_R_WRITE)
581 	    prb->control = htole16(0x0020);
582 	prd = &prb->u.atapi.prd[0];
583     }
584     else
585 	prd = &prb->u.ata.prd[0];
586 
587     /* if request moves data setup and load SG list */
588     if (request->flags & (ATA_R_READ | ATA_R_WRITE)) {
589 	if (ch->dma.load(request, prd, NULL)) {
590 	    device_printf(request->parent, "setting up DMA failed\n");
591 	    request->result = EIO;
592 	    return ATA_OP_FINISHED;
593 	}
594     }
595 
596     bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, BUS_DMASYNC_PREWRITE);
597 
598     /* activate the prb */
599     prb_bus = ch->dma.work_bus;
600     ATA_OUTL(ctlr->r_res2, 0x1c00 + offset, prb_bus);
601     ATA_OUTL(ctlr->r_res2, 0x1c04 + offset, prb_bus>>32);
602 
603     /* start the timeout */
604     callout_reset(&request->callout, request->timeout * hz,
605                   (timeout_t*)ata_timeout, request);
606     return ATA_OP_CONTINUES;
607 }
608 
609 static int
610 ata_siiprb_end_transaction(struct ata_request *request)
611 {
612     struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
613     struct ata_channel *ch = device_get_softc(request->parent);
614     struct ata_siiprb_command *prb;
615     int offset = ch->unit * 0x2000;
616     int error, timeout;
617 
618     /* kill the timeout */
619     callout_stop(&request->callout);
620 
621     bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, BUS_DMASYNC_POSTWRITE);
622 
623     prb = (struct ata_siiprb_command *)
624 	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
625 
626     /* any controller errors flagged ? */
627     if ((error = ATA_INL(ctlr->r_res2, 0x1024 + offset))) {
628 	if (bootverbose)
629 	    printf("ata_siiprb_end_transaction %s error=%08x\n",
630 		   ata_cmd2str(request), error);
631 
632 	/* if device error status get details */
633 	if (error == 1 || error == 2) {
634 	    request->status = prb->fis[2];
635 	    if (request->status & ATA_S_ERROR)
636 		request->error = prb->fis[3];
637 	}
638 
639  	/* SOS XXX handle other controller errors here */
640 
641 	/* initialize port */
642 	ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000004);
643 
644 	/* poll for port ready */
645 	for (timeout = 0; timeout < 1000; timeout++) {
646 	    DELAY(1000);
647             if (ATA_INL(ctlr->r_res2, 0x1008 + offset) & 0x00040000)
648         	break;
649 	}
650 	if (bootverbose) {
651 	    if (timeout >= 1000)
652 		device_printf(ch->dev, "port initialize timeout\n");
653 	    else
654 		device_printf(ch->dev, "port initialize time=%dms\n", timeout);
655 	}
656     }
657 
658     /* Read back registers to the request struct. */
659     if ((request->flags & ATA_R_ATAPI) == 0 &&
660 	((request->status & ATA_S_ERROR) ||
661 	 (request->flags & (ATA_R_CONTROL | ATA_R_NEEDRESULT)))) {
662 	request->u.ata.count = prb->fis[12] | ((u_int16_t)prb->fis[13] << 8);
663 	request->u.ata.lba = prb->fis[4] | ((u_int64_t)prb->fis[5] << 8) |
664 			     ((u_int64_t)prb->fis[6] << 16);
665 	if (request->flags & ATA_R_48BIT)
666 	    request->u.ata.lba |= ((u_int64_t)prb->fis[8] << 24) |
667 				  ((u_int64_t)prb->fis[9] << 32) |
668 				  ((u_int64_t)prb->fis[10] << 40);
669 	else
670 	    request->u.ata.lba |= ((u_int64_t)(prb->fis[7] & 0x0f) << 24);
671     }
672 
673     /* update progress */
674     if (!(request->status & ATA_S_ERROR) && !(request->flags & ATA_R_TIMEOUT)) {
675 	if (request->flags & ATA_R_READ)
676 	    request->donecount = le32toh(prb->transfer_count);
677 	else
678 	    request->donecount = request->bytecount;
679     }
680 
681     /* release SG list etc */
682     ch->dma.unload(request);
683 
684     return ATA_OP_FINISHED;
685 }
686 
687 static int
688 ata_siiprb_issue_cmd(device_t dev)
689 {
690     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
691     struct ata_channel *ch = device_get_softc(dev);
692     u_int64_t prb_bus = ch->dma.work_bus;
693     u_int32_t status;
694     int offset = ch->unit * 0x2000;
695     int timeout;
696 
697     bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, BUS_DMASYNC_PREWRITE);
698 
699     /* issue command to chip */
700     ATA_OUTL(ctlr->r_res2, 0x1c00 + offset, prb_bus);
701     ATA_OUTL(ctlr->r_res2, 0x1c04 + offset, prb_bus >> 32);
702 
703     /* poll for command finished */
704     for (timeout = 0; timeout < 10000; timeout++) {
705         DELAY(1000);
706         if ((status = ATA_INL(ctlr->r_res2, 0x1008 + offset)) & 0x00010000)
707             break;
708     }
709 
710     bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, BUS_DMASYNC_POSTWRITE);
711 
712     // SOS XXX ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x00010000);
713     ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x08ff08ff);
714 
715     if (timeout >= 1000)
716 	return EIO;
717 
718     if (bootverbose)
719 	device_printf(dev, "siiprb_issue_cmd time=%dms status=%08x\n",
720 		      timeout, status);
721     return 0;
722 }
723 
724 static int
725 ata_siiprb_pm_read(device_t dev, int port, int reg, u_int32_t *result)
726 {
727     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
728     struct ata_channel *ch = device_get_softc(dev);
729     struct ata_siiprb_command *prb = (struct ata_siiprb_command *)ch->dma.work;
730     int offset = ch->unit * 0x2000;
731 
732     if (port < 0) {
733 	*result = ATA_IDX_INL(ch, reg);
734 	return (0);
735     }
736     if (port < ATA_PM) {
737 	switch (reg) {
738 	case ATA_SSTATUS:
739 	    reg = 0;
740 	    break;
741 	case ATA_SERROR:
742 	    reg = 1;
743 	    break;
744 	case ATA_SCONTROL:
745 	    reg = 2;
746 	    break;
747 	default:
748 	    return (EINVAL);
749 	}
750     }
751     bzero(prb, sizeof(struct ata_siiprb_command));
752     prb->fis[0] = 0x27;	/* host to device */
753     prb->fis[1] = 0x8f;	/* command FIS to PM port */
754     prb->fis[2] = ATA_READ_PM;
755     prb->fis[3] = reg;
756     prb->fis[7] = port;
757     if (ata_siiprb_issue_cmd(dev)) {
758 	device_printf(dev, "error reading PM port\n");
759 	return EIO;
760     }
761     prb = (struct ata_siiprb_command *)
762 	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
763     *result = prb->fis[12]|(prb->fis[4]<<8)|(prb->fis[5]<<16)|(prb->fis[6]<<24);
764     return 0;
765 }
766 
767 static int
768 ata_siiprb_pm_write(device_t dev, int port, int reg, u_int32_t value)
769 {
770     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
771     struct ata_channel *ch = device_get_softc(dev);
772     struct ata_siiprb_command *prb = (struct ata_siiprb_command *)ch->dma.work;
773     int offset = ch->unit * 0x2000;
774 
775     if (port < 0) {
776 	ATA_IDX_OUTL(ch, reg, value);
777 	return (0);
778     }
779     if (port < ATA_PM) {
780 	switch (reg) {
781 	case ATA_SSTATUS:
782 	    reg = 0;
783 	    break;
784 	case ATA_SERROR:
785 	    reg = 1;
786 	    break;
787 	case ATA_SCONTROL:
788 	    reg = 2;
789 	    break;
790 	default:
791 	    return (EINVAL);
792 	}
793     }
794     bzero(prb, sizeof(struct ata_siiprb_command));
795     prb->fis[0] = 0x27;	/* host to device */
796     prb->fis[1] = 0x8f;	/* command FIS to PM port */
797     prb->fis[2] = ATA_WRITE_PM;
798     prb->fis[3] = reg;
799     prb->fis[7] = port;
800     prb->fis[12] = value & 0xff;
801     prb->fis[4] = (value >> 8) & 0xff;
802     prb->fis[5] = (value >> 16) & 0xff;
803     prb->fis[6] = (value >> 24) & 0xff;
804     if (ata_siiprb_issue_cmd(dev)) {
805 	device_printf(dev, "error writing PM port\n");
806 	return ATA_E_ABORT;
807     }
808     prb = (struct ata_siiprb_command *)
809 	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
810     return prb->fis[3];
811 }
812 
813 static u_int32_t
814 ata_siiprb_softreset(device_t dev, int port)
815 {
816     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
817     struct ata_channel *ch = device_get_softc(dev);
818     struct ata_siiprb_command *prb = (struct ata_siiprb_command *)ch->dma.work;
819     u_int32_t signature;
820     int offset = ch->unit * 0x2000;
821 
822     /* setup the workspace for a soft reset command */
823     bzero(prb, sizeof(struct ata_siiprb_command));
824     prb->control = htole16(0x0080);
825     prb->fis[1] = port & 0x0f;
826 
827     /* issue soft reset */
828     if (ata_siiprb_issue_cmd(dev))
829 	return -1;
830 
831     ata_udelay(150000);
832 
833     /* get possible signature */
834     prb = (struct ata_siiprb_command *)
835 	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
836     signature=prb->fis[12]|(prb->fis[4]<<8)|(prb->fis[5]<<16)|(prb->fis[6]<<24);
837 
838     /* clear error bits/interrupt */
839     ATA_IDX_OUTL(ch, ATA_SERROR, 0xffffffff);
840 
841     return signature;
842 }
843 
844 static void
845 ata_siiprb_reset(device_t dev)
846 {
847     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
848     struct ata_channel *ch = device_get_softc(dev);
849     int offset = ch->unit * 0x2000;
850     u_int32_t status, signature;
851     int timeout;
852 
853     /* disable interrupts */
854     ATA_OUTL(ctlr->r_res2, 0x1014 + offset, 0x000000ff);
855 
856     /* reset channel HW */
857     ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000001);
858     DELAY(1000);
859     ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000001);
860     DELAY(10000);
861 
862     /* poll for channel ready */
863     for (timeout = 0; timeout < 1000; timeout++) {
864         if ((status = ATA_INL(ctlr->r_res2, 0x1008 + offset)) & 0x00040000)
865             break;
866         DELAY(1000);
867     }
868 
869     if (bootverbose) {
870 	if (timeout >= 1000)
871 	    device_printf(dev, "channel HW reset timeout\n");
872 	else
873 	    device_printf(dev, "channel HW reset time=%dms\n", timeout);
874     }
875 
876     /* reset phy */
877     if (!ata_sata_phy_reset(dev, -1, 1)) {
878 	if (bootverbose)
879 	    device_printf(dev, "phy reset found no device\n");
880 	ch->devices = 0;
881 	goto finish;
882     }
883 
884     /* issue soft reset */
885     signature = ata_siiprb_softreset(dev, ATA_PM);
886     if (bootverbose)
887 	device_printf(dev, "SIGNATURE=%08x\n", signature);
888 
889     /* figure out whats there */
890     switch (signature >> 16) {
891     case 0x0000:
892 	ch->devices = ATA_ATA_MASTER;
893 	break;
894     case 0x9669:
895 	ch->devices = ATA_PORTMULTIPLIER;
896 	ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x2000); /* enable PM support */
897 	//SOS XXX need to clear all PM status and interrupts!!!!
898 	ata_pm_identify(dev);
899 	break;
900     case 0xeb14:
901 	ch->devices = ATA_ATAPI_MASTER;
902 	break;
903     default:
904 	ch->devices = 0;
905     }
906     if (bootverbose)
907         device_printf(dev, "siiprb_reset devices=%08x\n", ch->devices);
908 
909 finish:
910     /* clear interrupt(s) */
911     ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x000008ff);
912 
913     /* require explicit interrupt ack */
914     ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000008);
915 
916     /* 64bit mode */
917     ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000400);
918 
919     /* enable interrupts wanted */
920     ATA_OUTL(ctlr->r_res2, 0x1010 + offset, 0x000000ff);
921 }
922 
923 static void
924 ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
925 {
926     struct ata_dmasetprd_args *args = xsc;
927     struct ata_siiprb_dma_prdentry *prd = args->dmatab;
928     int i;
929 
930     if ((args->error = error))
931 	return;
932 
933     for (i = 0; i < nsegs; i++) {
934 	prd[i].addr = htole64(segs[i].ds_addr);
935 	prd[i].count = htole32(segs[i].ds_len);
936     }
937     prd[i - 1].control = htole32(ATA_DMA_EOT);
938     KASSERT(nsegs <= ATA_SIIPRB_DMA_ENTRIES,("too many DMA segment entries\n"));
939     args->nsegs = nsegs;
940 }
941 
942 static void
943 ata_siiprb_dmainit(device_t dev)
944 {
945     struct ata_channel *ch = device_get_softc(dev);
946 
947     /* note start and stop are not used here */
948     ch->dma.setprd = ata_siiprb_dmasetprd;
949     ch->dma.max_address = BUS_SPACE_MAXADDR;
950     ch->dma.max_iosize = (ATA_SIIPRB_DMA_ENTRIES - 1) * PAGE_SIZE;
951     ata_dmainit(dev);
952 }
953 
954 ATA_DECLARE_DRIVER(ata_sii);
955