ata-siliconimage.c revision 209884
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: head/sys/dev/ata/chipsets/ata-siliconimage.c 209884 2010-07-10 15:36:27Z mav $");
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 */
55static int ata_cmd_ch_attach(device_t dev);
56static int ata_cmd_status(device_t dev);
57static int ata_cmd_setmode(device_t dev, int target, int mode);
58static int ata_sii_ch_attach(device_t dev);
59static int ata_sii_ch_detach(device_t dev);
60static int ata_sii_status(device_t dev);
61static void ata_sii_reset(device_t dev);
62static int ata_sii_setmode(device_t dev, int target, int mode);
63static int ata_siiprb_ch_attach(device_t dev);
64static int ata_siiprb_ch_detach(device_t dev);
65static int ata_siiprb_status(device_t dev);
66static int ata_siiprb_begin_transaction(struct ata_request *request);
67static int ata_siiprb_end_transaction(struct ata_request *request);
68static int ata_siiprb_pm_read(device_t dev, int port, int reg, u_int32_t *result);
69static int ata_siiprb_pm_write(device_t dev, int port, int reg, u_int32_t result);
70static u_int32_t ata_siiprb_softreset(device_t dev, int port);
71static void ata_siiprb_reset(device_t dev);
72static void ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
73static void ata_siiprb_dmainit(device_t dev);
74
75/* misc defines */
76#define SII_MEMIO	1
77#define SII_PRBIO	2
78#define SII_INTR	0x01
79#define SII_SETCLK	0x02
80#define SII_BUG		0x04
81#define SII_4CH		0x08
82
83
84/*
85 * Silicon Image Inc. (SiI) (former CMD) chipset support functions
86 */
87static int
88ata_sii_probe(device_t dev)
89{
90    struct ata_pci_controller *ctlr = device_get_softc(dev);
91    static struct ata_chip_id ids[] =
92    {{ ATA_SII3114,   0x00, SII_MEMIO, SII_4CH,    ATA_SA150, "3114" },
93     { ATA_SII3512,   0x02, SII_MEMIO, 0,          ATA_SA150, "3512" },
94     { ATA_SII3112,   0x02, SII_MEMIO, 0,          ATA_SA150, "3112" },
95     { ATA_SII3112_1, 0x02, SII_MEMIO, 0,          ATA_SA150, "3112" },
96     { ATA_SII3512,   0x00, SII_MEMIO, SII_BUG,    ATA_SA150, "3512" },
97     { ATA_SII3112,   0x00, SII_MEMIO, SII_BUG,    ATA_SA150, "3112" },
98     { ATA_SII3112_1, 0x00, SII_MEMIO, SII_BUG,    ATA_SA150, "3112" },
99     { ATA_SII3124,   0x00, SII_PRBIO, SII_4CH,    ATA_SA300, "3124" },
100     { ATA_SII3132,   0x00, SII_PRBIO, 0,          ATA_SA300, "3132" },
101     { ATA_SII3132_1, 0x00, SII_PRBIO, 0,          ATA_SA300, "3132" },
102     { ATA_SII3132_2, 0x00, SII_PRBIO, 0,          ATA_SA300, "3132" },
103     { ATA_SII0680,   0x00, SII_MEMIO, SII_SETCLK, ATA_UDMA6, "680" },
104     { ATA_CMD649,    0x00, 0,         SII_INTR,   ATA_UDMA5, "(CMD) 649" },
105     { ATA_CMD648,    0x00, 0,         SII_INTR,   ATA_UDMA4, "(CMD) 648" },
106     { ATA_CMD646,    0x07, 0,         0,          ATA_UDMA2, "(CMD) 646U2" },
107     { ATA_CMD646,    0x00, 0,         0,          ATA_WDMA2, "(CMD) 646" },
108     { 0, 0, 0, 0, 0, 0}};
109
110    if (pci_get_vendor(dev) != ATA_SILICON_IMAGE_ID)
111	return ENXIO;
112
113    if (!(ctlr->chip = ata_match_chip(dev, ids)))
114	return ENXIO;
115
116    ata_set_desc(dev);
117    ctlr->chipinit = ata_sii_chipinit;
118    return (BUS_PROBE_DEFAULT);
119}
120
121int
122ata_sii_chipinit(device_t dev)
123{
124    struct ata_pci_controller *ctlr = device_get_softc(dev);
125
126    if (ata_setup_interrupt(dev, ata_generic_intr))
127	return ENXIO;
128
129    switch (ctlr->chip->cfg1) {
130    case SII_PRBIO:
131	ctlr->r_type1 = SYS_RES_MEMORY;
132	ctlr->r_rid1 = PCIR_BAR(0);
133	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
134						    &ctlr->r_rid1, RF_ACTIVE)))
135	    return ENXIO;
136
137	ctlr->r_rid2 = PCIR_BAR(2);
138	ctlr->r_type2 = SYS_RES_MEMORY;
139	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
140						    &ctlr->r_rid2, RF_ACTIVE))){
141	    bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1,ctlr->r_res1);
142	    return ENXIO;
143	}
144	ctlr->ch_attach = ata_siiprb_ch_attach;
145	ctlr->ch_detach = ata_siiprb_ch_detach;
146	ctlr->reset = ata_siiprb_reset;
147	ctlr->setmode = ata_sata_setmode;
148	ctlr->getrev = ata_sata_getrev;
149	ctlr->channels = (ctlr->chip->cfg2 == SII_4CH) ? 4 : 2;
150
151	/* reset controller */
152	ATA_OUTL(ctlr->r_res1, 0x0040, 0x80000000);
153	DELAY(10000);
154	ATA_OUTL(ctlr->r_res1, 0x0040, 0x0000000f);
155	break;
156
157    case SII_MEMIO:
158	ctlr->r_type2 = SYS_RES_MEMORY;
159	ctlr->r_rid2 = PCIR_BAR(5);
160	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
161						    &ctlr->r_rid2, RF_ACTIVE))){
162	    if (ctlr->chip->chipid != ATA_SII0680 ||
163			    (pci_read_config(dev, 0x8a, 1) & 1))
164		return ENXIO;
165	}
166
167	if (ctlr->chip->cfg2 & SII_SETCLK) {
168	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
169		pci_write_config(dev, 0x8a,
170				 (pci_read_config(dev, 0x8a, 1) & 0xcf)|0x10,1);
171	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
172		device_printf(dev, "%s could not set ATA133 clock\n",
173			      ctlr->chip->text);
174	}
175
176	/* if we have 4 channels enable the second set */
177	if (ctlr->chip->cfg2 & SII_4CH) {
178	    ATA_OUTL(ctlr->r_res2, 0x0200, 0x00000002);
179	    ctlr->channels = 4;
180	}
181
182	/* dont block interrupts from any channel */
183	pci_write_config(dev, 0x48,
184			 (pci_read_config(dev, 0x48, 4) & ~0x03c00000), 4);
185
186	/* enable PCI interrupt as BIOS might not */
187	pci_write_config(dev, 0x8a, (pci_read_config(dev, 0x8a, 1) & 0x3f), 1);
188
189	if (ctlr->r_res2) {
190	    ctlr->ch_attach = ata_sii_ch_attach;
191	    ctlr->ch_detach = ata_sii_ch_detach;
192	}
193
194	if (ctlr->chip->max_dma >= ATA_SA150) {
195	    ctlr->reset = ata_sii_reset;
196	    ctlr->setmode = ata_sata_setmode;
197	    ctlr->getrev = ata_sata_getrev;
198	}
199	else
200	    ctlr->setmode = ata_sii_setmode;
201	break;
202
203    default:
204	if ((pci_read_config(dev, 0x51, 1) & 0x08) != 0x08) {
205	    device_printf(dev, "HW has secondary channel disabled\n");
206	    ctlr->channels = 1;
207	}
208
209	/* enable interrupt as BIOS might not */
210	pci_write_config(dev, 0x71, 0x01, 1);
211
212	ctlr->ch_attach = ata_cmd_ch_attach;
213	ctlr->ch_detach = ata_pci_ch_detach;
214	ctlr->setmode = ata_cmd_setmode;
215	break;
216    }
217    return 0;
218}
219
220static int
221ata_cmd_ch_attach(device_t dev)
222{
223    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
224    struct ata_channel *ch = device_get_softc(dev);
225
226    /* setup the usual register normal pci style */
227    if (ata_pci_ch_attach(dev))
228	return ENXIO;
229
230    if (ctlr->chip->cfg2 & SII_INTR)
231	ch->hw.status = ata_cmd_status;
232
233    return 0;
234}
235
236static int
237ata_cmd_status(device_t dev)
238{
239    struct ata_channel *ch = device_get_softc(dev);
240    u_int8_t reg71;
241
242    if (((reg71 = pci_read_config(device_get_parent(dev), 0x71, 1)) &
243	 (ch->unit ? 0x08 : 0x04))) {
244	pci_write_config(device_get_parent(dev), 0x71,
245			 reg71 & ~(ch->unit ? 0x04 : 0x08), 1);
246	return ata_pci_status(dev);
247    }
248    return 0;
249}
250
251static int
252ata_cmd_setmode(device_t dev, int target, int mode)
253{
254	device_t parent = device_get_parent(dev);
255	struct ata_pci_controller *ctlr = device_get_softc(parent);
256	struct ata_channel *ch = device_get_softc(dev);
257	int devno = (ch->unit << 1) + target;
258	int treg = 0x54 + ((devno < 3) ? (devno << 1) : 7);
259	int ureg = ch->unit ? 0x7b : 0x73;
260	int piomode;
261	uint8_t piotimings[] = { 0xa9, 0x57, 0x44, 0x32, 0x3f, 0x87, 0x32, 0x3f };
262	uint8_t udmatimings[][2] = { { 0x31,  0xc2 }, { 0x21,  0x82 },
263				     { 0x11,  0x42 }, { 0x25,  0x8a },
264				     { 0x15,  0x4a }, { 0x05,  0x0a } };
265
266	mode = min(mode, ctlr->chip->max_dma);
267	if (mode >= ATA_UDMA0) {
268		u_int8_t umode = pci_read_config(parent, ureg, 1);
269
270	        umode &= ~(target == 0 ? 0x35 : 0xca);
271		umode |= udmatimings[mode & ATA_MODE_MASK][target];
272		pci_write_config(parent, ureg, umode, 1);
273		piomode = ATA_PIO4;
274	} else {
275		pci_write_config(parent, ureg,
276			     pci_read_config(parent, ureg, 1) &
277			     ~(target == 0 ? 0x35 : 0xca), 1);
278		piomode = mode;
279	}
280	pci_write_config(parent, treg, piotimings[ata_mode2idx(piomode)], 1);
281	return (mode);
282}
283
284static int
285ata_sii_ch_attach(device_t dev)
286{
287    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
288    struct ata_channel *ch = device_get_softc(dev);
289    int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2);
290    int i;
291
292    ata_pci_dmainit(dev);
293
294    for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
295	ch->r_io[i].res = ctlr->r_res2;
296	ch->r_io[i].offset = 0x80 + i + (unit01 << 6) + (unit10 << 8);
297    }
298    ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
299    ch->r_io[ATA_CONTROL].offset = 0x8a + (unit01 << 6) + (unit10 << 8);
300    ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
301    ata_default_registers(dev);
302
303    ch->r_io[ATA_BMCMD_PORT].res = ctlr->r_res2;
304    ch->r_io[ATA_BMCMD_PORT].offset = 0x00 + (unit01 << 3) + (unit10 << 8);
305    ch->r_io[ATA_BMSTAT_PORT].res = ctlr->r_res2;
306    ch->r_io[ATA_BMSTAT_PORT].offset = 0x02 + (unit01 << 3) + (unit10 << 8);
307    ch->r_io[ATA_BMDTP_PORT].res = ctlr->r_res2;
308    ch->r_io[ATA_BMDTP_PORT].offset = 0x04 + (unit01 << 3) + (unit10 << 8);
309
310    if (ctlr->chip->max_dma >= ATA_SA150) {
311	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
312	ch->r_io[ATA_SSTATUS].offset = 0x104 + (unit01 << 7) + (unit10 << 8);
313	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
314	ch->r_io[ATA_SERROR].offset = 0x108 + (unit01 << 7) + (unit10 << 8);
315	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
316	ch->r_io[ATA_SCONTROL].offset = 0x100 + (unit01 << 7) + (unit10 << 8);
317	ch->flags |= ATA_NO_SLAVE;
318	ch->flags |= ATA_SATA;
319
320	/* enable PHY state change interrupt */
321	ATA_OUTL(ctlr->r_res2, 0x148 + (unit01 << 7) + (unit10 << 8),(1 << 16));
322    }
323
324    if (ctlr->chip->cfg2 & SII_BUG) {
325	/* work around errata in early chips */
326	ch->dma.boundary = 8192;
327	ch->dma.segsize = 15 * DEV_BSIZE;
328    }
329
330    ata_pci_hw(dev);
331    ch->hw.status = ata_sii_status;
332    if (ctlr->chip->cfg2 & SII_SETCLK)
333	ch->flags |= ATA_CHECKS_CABLE;
334    return 0;
335}
336
337static int
338ata_sii_ch_detach(device_t dev)
339{
340
341    ata_pci_dmafini(dev);
342    return (0);
343}
344
345static int
346ata_sii_status(device_t dev)
347{
348    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
349    struct ata_channel *ch = device_get_softc(dev);
350    int offset0 = ((ch->unit & 1) << 3) + ((ch->unit & 2) << 8);
351    int offset1 = ((ch->unit & 1) << 6) + ((ch->unit & 2) << 8);
352
353    /* do we have any PHY events ? */
354    if (ctlr->chip->max_dma >= ATA_SA150 &&
355	(ATA_INL(ctlr->r_res2, 0x10 + offset0) & 0x00000010))
356	ata_sata_phy_check_events(dev);
357
358    if (ATA_INL(ctlr->r_res2, 0xa0 + offset1) & 0x00000800)
359	return ata_pci_status(dev);
360    else
361	return 0;
362}
363
364static void
365ata_sii_reset(device_t dev)
366{
367    struct ata_channel *ch = device_get_softc(dev);
368
369    if (ata_sata_phy_reset(dev, -1, 1))
370	ata_generic_reset(dev);
371    else
372	ch->devices = 0;
373}
374
375static int
376ata_sii_setmode(device_t dev, int target, int mode)
377{
378	device_t parent = device_get_parent(dev);
379	struct ata_pci_controller *ctlr = device_get_softc(parent);
380	struct ata_channel *ch = device_get_softc(dev);
381	int rego = (ch->unit << 4) + (target << 1);
382	int mreg = ch->unit ? 0x84 : 0x80;
383	int mask = 0x03 << (target << 2);
384	int mval = pci_read_config(parent, mreg, 1) & ~mask;
385	int piomode;
386	u_int8_t preg = 0xa4 + rego;
387	u_int8_t dreg = 0xa8 + rego;
388	u_int8_t ureg = 0xac + rego;
389	u_int16_t piotimings[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
390	u_int16_t dmatimings[] = { 0x2208, 0x10c2, 0x10c1 };
391	u_int8_t udmatimings[] = { 0xf, 0xb, 0x7, 0x5, 0x3, 0x2, 0x1 };
392
393	mode = min(mode, ctlr->chip->max_dma);
394
395	if (ctlr->chip->cfg2 & SII_SETCLK) {
396	    if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
397		(pci_read_config(parent, 0x79, 1) &
398				 (ch->unit ? 0x02 : 0x01))) {
399		ata_print_cable(dev, "controller");
400		mode = ATA_UDMA2;
401	    }
402	}
403	if (mode >= ATA_UDMA0) {
404		pci_write_config(parent, mreg,
405			 mval | (0x03 << (target << 2)), 1);
406		pci_write_config(parent, ureg,
407			 (pci_read_config(parent, ureg, 1) & ~0x3f) |
408			 udmatimings[mode & ATA_MODE_MASK], 1);
409		piomode = ATA_PIO4;
410	} else if (mode >= ATA_WDMA0) {
411		pci_write_config(parent, mreg,
412			 mval | (0x02 << (target << 2)), 1);
413		pci_write_config(parent, dreg, dmatimings[mode & ATA_MODE_MASK], 2);
414		piomode = (mode == ATA_WDMA0) ? ATA_PIO0 :
415		    (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4;
416	} else {
417		pci_write_config(parent, mreg,
418			 mval | (0x01 << (target << 2)), 1);
419		piomode = mode;
420	}
421	pci_write_config(parent, preg, piotimings[ata_mode2idx(piomode)], 2);
422	return (mode);
423}
424
425
426struct ata_siiprb_dma_prdentry {
427    u_int64_t addr;
428    u_int32_t count;
429    u_int32_t control;
430} __packed;
431
432#define ATA_SIIPRB_DMA_ENTRIES		129
433struct ata_siiprb_ata_command {
434    struct ata_siiprb_dma_prdentry prd[ATA_SIIPRB_DMA_ENTRIES];
435} __packed;
436
437struct ata_siiprb_atapi_command {
438    u_int8_t ccb[16];
439    struct ata_siiprb_dma_prdentry prd[ATA_SIIPRB_DMA_ENTRIES];
440} __packed;
441
442struct ata_siiprb_command {
443    u_int16_t control;
444    u_int16_t protocol_override;
445    u_int32_t transfer_count;
446    u_int8_t fis[24];
447    union {
448	struct ata_siiprb_ata_command ata;
449	struct ata_siiprb_atapi_command atapi;
450    } u;
451} __packed;
452
453static int
454ata_siiprb_ch_attach(device_t dev)
455{
456    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
457    struct ata_channel *ch = device_get_softc(dev);
458    int offset = ch->unit * 0x2000;
459
460    ata_siiprb_dmainit(dev);
461
462    /* set the SATA resources */
463    ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
464    ch->r_io[ATA_SSTATUS].offset = 0x1f04 + offset;
465    ch->r_io[ATA_SERROR].res = ctlr->r_res2;
466    ch->r_io[ATA_SERROR].offset = 0x1f08 + offset;
467    ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
468    ch->r_io[ATA_SCONTROL].offset = 0x1f00 + offset;
469    ch->r_io[ATA_SACTIVE].res = ctlr->r_res2;
470    ch->r_io[ATA_SACTIVE].offset = 0x1f0c + offset;
471
472    ch->hw.status = ata_siiprb_status;
473    ch->hw.begin_transaction = ata_siiprb_begin_transaction;
474    ch->hw.end_transaction = ata_siiprb_end_transaction;
475    ch->hw.command = NULL;	/* not used here */
476    ch->hw.softreset = ata_siiprb_softreset;
477    ch->hw.pm_read = ata_siiprb_pm_read;
478    ch->hw.pm_write = ata_siiprb_pm_write;
479    ch->flags |= ATA_NO_SLAVE;
480    ch->flags |= ATA_SATA;
481    return 0;
482}
483
484static int
485ata_siiprb_ch_detach(device_t dev)
486{
487
488    ata_dmafini(dev);
489    return 0;
490}
491
492static int
493ata_siiprb_status(device_t dev)
494{
495    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
496    struct ata_channel *ch = device_get_softc(dev);
497    u_int32_t action = ATA_INL(ctlr->r_res1, 0x0044);
498    int offset = ch->unit * 0x2000;
499
500    if (action & (1 << ch->unit)) {
501	u_int32_t istatus = ATA_INL(ctlr->r_res2, 0x1008 + offset);
502
503	/* do we have any PHY events ? */
504	ata_sata_phy_check_events(dev);
505
506	/* clear interrupt(s) */
507	ATA_OUTL(ctlr->r_res2, 0x1008 + offset, istatus);
508
509	/* do we have any device action ? */
510	return (istatus & 0x00000003);
511    }
512    return 0;
513}
514
515static int
516ata_siiprb_begin_transaction(struct ata_request *request)
517{
518    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
519    struct ata_channel *ch = device_get_softc(request->parent);
520    struct ata_siiprb_command *prb;
521    struct ata_siiprb_dma_prdentry *prd;
522    int offset = ch->unit * 0x2000;
523    u_int64_t prb_bus;
524
525    /* SOS XXX */
526    if (request->u.ata.command == ATA_DEVICE_RESET) {
527        request->result = 0;
528        return ATA_OP_FINISHED;
529    }
530
531    /* get a piece of the workspace for this request */
532    prb = (struct ata_siiprb_command *)ch->dma.work;
533
534    /* clear the prb structure */
535    bzero(prb, sizeof(struct ata_siiprb_command));
536
537    /* setup the FIS for this request */
538    if (!ata_request2fis_h2d(request, &prb->fis[0])) {
539        device_printf(request->parent, "setting up SATA FIS failed\n");
540        request->result = EIO;
541        return ATA_OP_FINISHED;
542    }
543
544    /* setup transfer type */
545    if (request->flags & ATA_R_ATAPI) {
546	bcopy(request->u.atapi.ccb, prb->u.atapi.ccb, 16);
547	if (request->flags & ATA_R_ATAPI16)
548	    ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000020);
549	else
550	    ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000020);
551	if (request->flags & ATA_R_READ)
552	    prb->control = htole16(0x0010);
553	if (request->flags & ATA_R_WRITE)
554	    prb->control = htole16(0x0020);
555	prd = &prb->u.atapi.prd[0];
556    }
557    else
558	prd = &prb->u.ata.prd[0];
559
560    /* if request moves data setup and load SG list */
561    if (request->flags & (ATA_R_READ | ATA_R_WRITE)) {
562	if (ch->dma.load(request, prd, NULL)) {
563	    device_printf(request->parent, "setting up DMA failed\n");
564	    request->result = EIO;
565	    return ATA_OP_FINISHED;
566	}
567    }
568
569    /* activate the prb */
570    prb_bus = ch->dma.work_bus;
571    ATA_OUTL(ctlr->r_res2, 0x1c00 + offset, prb_bus);
572    ATA_OUTL(ctlr->r_res2, 0x1c04 + offset, prb_bus>>32);
573
574    /* start the timeout */
575    callout_reset(&request->callout, request->timeout * hz,
576                  (timeout_t*)ata_timeout, request);
577    return ATA_OP_CONTINUES;
578}
579
580static int
581ata_siiprb_end_transaction(struct ata_request *request)
582{
583    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
584    struct ata_channel *ch = device_get_softc(request->parent);
585    struct ata_siiprb_command *prb;
586    int offset = ch->unit * 0x2000;
587    int error, timeout;
588
589    /* kill the timeout */
590    callout_stop(&request->callout);
591
592    prb = (struct ata_siiprb_command *)
593	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
594
595    /* any controller errors flagged ? */
596    if ((error = ATA_INL(ctlr->r_res2, 0x1024 + offset))) {
597	if (bootverbose)
598	    printf("ata_siiprb_end_transaction %s error=%08x\n",
599		   ata_cmd2str(request), error);
600
601	/* if device error status get details */
602	if (error == 1 || error == 2) {
603	    request->status = prb->fis[2];
604	    if (request->status & ATA_S_ERROR)
605		request->error = prb->fis[3];
606	}
607
608 	/* SOS XXX handle other controller errors here */
609
610	/* initialize port */
611	ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000004);
612
613	/* poll for port ready */
614	for (timeout = 0; timeout < 1000; timeout++) {
615	    DELAY(1000);
616            if (ATA_INL(ctlr->r_res2, 0x1008 + offset) & 0x00040000)
617        	break;
618	}
619	if (bootverbose) {
620	    if (timeout >= 1000)
621		device_printf(ch->dev, "port initialize timeout\n");
622	    else
623		device_printf(ch->dev, "port initialize time=%dms\n", timeout);
624	}
625    }
626
627    /* on control commands read back registers to the request struct */
628    if (request->flags & ATA_R_CONTROL) {
629	request->u.ata.count = prb->fis[12] | ((u_int16_t)prb->fis[13] << 8);
630	request->u.ata.lba = prb->fis[4] | ((u_int64_t)prb->fis[5] << 8) |
631			     ((u_int64_t)prb->fis[6] << 16);
632	if (request->flags & ATA_R_48BIT)
633	    request->u.ata.lba |= ((u_int64_t)prb->fis[8] << 24) |
634				  ((u_int64_t)prb->fis[9] << 32) |
635				  ((u_int64_t)prb->fis[10] << 40);
636	else
637	    request->u.ata.lba |= ((u_int64_t)(prb->fis[7] & 0x0f) << 24);
638    }
639
640    /* update progress */
641    if (!(request->status & ATA_S_ERROR) && !(request->flags & ATA_R_TIMEOUT)) {
642	if (request->flags & ATA_R_READ)
643	    request->donecount = prb->transfer_count;
644	else
645	    request->donecount = request->bytecount;
646    }
647
648    /* release SG list etc */
649    ch->dma.unload(request);
650
651    return ATA_OP_FINISHED;
652}
653
654static int
655ata_siiprb_issue_cmd(device_t dev)
656{
657    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
658    struct ata_channel *ch = device_get_softc(dev);
659    u_int64_t prb_bus = ch->dma.work_bus;
660    u_int32_t status;
661    int offset = ch->unit * 0x2000;
662    int timeout;
663
664    /* issue command to chip */
665    ATA_OUTL(ctlr->r_res2, 0x1c00 + offset, prb_bus);
666    ATA_OUTL(ctlr->r_res2, 0x1c04 + offset, prb_bus >> 32);
667
668    /* poll for command finished */
669    for (timeout = 0; timeout < 10000; timeout++) {
670        DELAY(1000);
671        if ((status = ATA_INL(ctlr->r_res2, 0x1008 + offset)) & 0x00010000)
672            break;
673    }
674    // SOS XXX ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x00010000);
675    ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x08ff08ff);
676
677    if (timeout >= 1000)
678	return EIO;
679
680    if (bootverbose)
681	device_printf(dev, "siiprb_issue_cmd time=%dms status=%08x\n",
682		      timeout, status);
683    return 0;
684}
685
686static int
687ata_siiprb_pm_read(device_t dev, int port, int reg, u_int32_t *result)
688{
689    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
690    struct ata_channel *ch = device_get_softc(dev);
691    struct ata_siiprb_command *prb = (struct ata_siiprb_command *)ch->dma.work;
692    int offset = ch->unit * 0x2000;
693
694    bzero(prb, sizeof(struct ata_siiprb_command));
695    prb->fis[0] = 0x27;	/* host to device */
696    prb->fis[1] = 0x8f;	/* command FIS to PM port */
697    prb->fis[2] = ATA_READ_PM;
698    prb->fis[3] = reg;
699    prb->fis[7] = port;
700    if (ata_siiprb_issue_cmd(dev)) {
701	device_printf(dev, "error reading PM port\n");
702	return EIO;
703    }
704    prb = (struct ata_siiprb_command *)
705	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
706    *result = prb->fis[12]|(prb->fis[4]<<8)|(prb->fis[5]<<16)|(prb->fis[6]<<24);
707    return 0;
708}
709
710static int
711ata_siiprb_pm_write(device_t dev, int port, int reg, u_int32_t value)
712{
713    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
714    struct ata_channel *ch = device_get_softc(dev);
715    struct ata_siiprb_command *prb = (struct ata_siiprb_command *)ch->dma.work;
716    int offset = ch->unit * 0x2000;
717
718    bzero(prb, sizeof(struct ata_siiprb_command));
719    prb->fis[0] = 0x27;	/* host to device */
720    prb->fis[1] = 0x8f;	/* command FIS to PM port */
721    prb->fis[2] = ATA_WRITE_PM;
722    prb->fis[3] = reg;
723    prb->fis[7] = port;
724    prb->fis[12] = value & 0xff;
725    prb->fis[4] = (value >> 8) & 0xff;
726    prb->fis[5] = (value >> 16) & 0xff;
727    prb->fis[6] = (value >> 24) & 0xff;
728    if (ata_siiprb_issue_cmd(dev)) {
729	device_printf(dev, "error writing PM port\n");
730	return ATA_E_ABORT;
731    }
732    prb = (struct ata_siiprb_command *)
733	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
734    return prb->fis[3];
735}
736
737static u_int32_t
738ata_siiprb_softreset(device_t dev, int port)
739{
740    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
741    struct ata_channel *ch = device_get_softc(dev);
742    struct ata_siiprb_command *prb = (struct ata_siiprb_command *)ch->dma.work;
743    u_int32_t signature;
744    int offset = ch->unit * 0x2000;
745
746    /* setup the workspace for a soft reset command */
747    bzero(prb, sizeof(struct ata_siiprb_command));
748    prb->control = htole16(0x0080);
749    prb->fis[1] = port & 0x0f;
750
751    /* issue soft reset */
752    if (ata_siiprb_issue_cmd(dev))
753	return -1;
754
755    ata_udelay(150000);
756
757    /* get possible signature */
758    prb = (struct ata_siiprb_command *)
759	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
760    signature=prb->fis[12]|(prb->fis[4]<<8)|(prb->fis[5]<<16)|(prb->fis[6]<<24);
761
762    /* clear error bits/interrupt */
763    ATA_IDX_OUTL(ch, ATA_SERROR, 0xffffffff);
764
765    return signature;
766}
767
768static void
769ata_siiprb_reset(device_t dev)
770{
771    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
772    struct ata_channel *ch = device_get_softc(dev);
773    int offset = ch->unit * 0x2000;
774    u_int32_t status, signature;
775    int timeout;
776
777    /* disable interrupts */
778    ATA_OUTL(ctlr->r_res2, 0x1014 + offset, 0x000000ff);
779
780    /* reset channel HW */
781    ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000001);
782    DELAY(1000);
783    ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000001);
784    DELAY(10000);
785
786    /* poll for channel ready */
787    for (timeout = 0; timeout < 1000; timeout++) {
788        if ((status = ATA_INL(ctlr->r_res2, 0x1008 + offset)) & 0x00040000)
789            break;
790        DELAY(1000);
791    }
792
793    if (bootverbose) {
794	if (timeout >= 1000)
795	    device_printf(dev, "channel HW reset timeout\n");
796	else
797	    device_printf(dev, "channel HW reset time=%dms\n", timeout);
798    }
799
800    /* reset phy */
801    if (!ata_sata_phy_reset(dev, -1, 1)) {
802	if (bootverbose)
803	    device_printf(dev, "phy reset found no device\n");
804	ch->devices = 0;
805	goto finish;
806    }
807
808    /* issue soft reset */
809    signature = ata_siiprb_softreset(dev, ATA_PM);
810    if (bootverbose)
811	device_printf(dev, "SIGNATURE=%08x\n", signature);
812
813    /* figure out whats there */
814    switch (signature >> 16) {
815    case 0x0000:
816	ch->devices = ATA_ATA_MASTER;
817	break;
818    case 0x9669:
819	ch->devices = ATA_PORTMULTIPLIER;
820	ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x2000); /* enable PM support */
821	//SOS XXX need to clear all PM status and interrupts!!!!
822	ata_pm_identify(dev);
823	break;
824    case 0xeb14:
825	ch->devices = ATA_ATAPI_MASTER;
826	break;
827    default:
828	ch->devices = 0;
829    }
830    if (bootverbose)
831        device_printf(dev, "siiprb_reset devices=%08x\n", ch->devices);
832
833finish:
834    /* clear interrupt(s) */
835    ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x000008ff);
836
837    /* require explicit interrupt ack */
838    ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000008);
839
840    /* 64bit mode */
841    ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000400);
842
843    /* enable interrupts wanted */
844    ATA_OUTL(ctlr->r_res2, 0x1010 + offset, 0x000000ff);
845}
846
847static void
848ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
849{
850    struct ata_dmasetprd_args *args = xsc;
851    struct ata_siiprb_dma_prdentry *prd = args->dmatab;
852    int i;
853
854    if ((args->error = error))
855	return;
856
857    for (i = 0; i < nsegs; i++) {
858	prd[i].addr = htole64(segs[i].ds_addr);
859	prd[i].count = htole32(segs[i].ds_len);
860    }
861    prd[i - 1].control = htole32(ATA_DMA_EOT);
862    KASSERT(nsegs <= ATA_SIIPRB_DMA_ENTRIES,("too many DMA segment entries\n"));
863    args->nsegs = nsegs;
864}
865
866static void
867ata_siiprb_dmainit(device_t dev)
868{
869    struct ata_channel *ch = device_get_softc(dev);
870
871    ata_dmainit(dev);
872    /* note start and stop are not used here */
873    ch->dma.setprd = ata_siiprb_dmasetprd;
874    ch->dma.max_address = BUS_SPACE_MAXADDR;
875    ch->dma.max_iosize = (ATA_SIIPRB_DMA_ENTRIES - 1) * PAGE_SIZE;
876}
877
878ATA_DECLARE_DRIVER(ata_sii);
879