ata-siliconimage.c revision 188765
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 188765 2009-02-18 22:17:48Z 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 void ata_cmd_setmode(device_t dev, int mode);
58static int ata_sii_ch_attach(device_t dev);
59static int ata_sii_status(device_t dev);
60static void ata_sii_reset(device_t dev);
61static void ata_sii_setmode(device_t dev, int mode);
62static int ata_siiprb_ch_attach(device_t dev);
63static int ata_siiprb_status(device_t dev);
64static int ata_siiprb_begin_transaction(struct ata_request *request);
65static int ata_siiprb_end_transaction(struct ata_request *request);
66static int ata_siiprb_pm_read(device_t dev, int port, int reg, u_int32_t *result);
67static int ata_siiprb_pm_write(device_t dev, int port, int reg, u_int32_t result);
68static u_int32_t ata_siiprb_softreset(device_t dev, int port);
69static void ata_siiprb_reset(device_t dev);
70static void ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
71static void ata_siiprb_dmainit(device_t dev);
72
73/* misc defines */
74#define SII_MEMIO	1
75#define SII_PRBIO	2
76#define SII_INTR	0x01
77#define SII_SETCLK	0x02
78#define SII_BUG		0x04
79#define SII_4CH		0x08
80
81
82/*
83 * Silicon Image Inc. (SiI) (former CMD) chipset support functions
84 */
85static int
86ata_sii_probe(device_t dev)
87{
88    struct ata_pci_controller *ctlr = device_get_softc(dev);
89    static 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_SII0680,   0x00, SII_MEMIO, SII_SETCLK, ATA_UDMA6, "680" },
101     { ATA_CMD649,    0x00, 0,         SII_INTR,   ATA_UDMA5, "(CMD) 649" },
102     { ATA_CMD648,    0x00, 0,         SII_INTR,   ATA_UDMA4, "(CMD) 648" },
103     { ATA_CMD646,    0x07, 0,         0,          ATA_UDMA2, "(CMD) 646U2" },
104     { ATA_CMD646,    0x00, 0,         0,          ATA_WDMA2, "(CMD) 646" },
105     { 0, 0, 0, 0, 0, 0}};
106
107    if (pci_get_vendor(dev) != ATA_SILICON_IMAGE_ID)
108	return ENXIO;
109
110    if (!(ctlr->chip = ata_match_chip(dev, ids)))
111	return ENXIO;
112
113    ata_set_desc(dev);
114    ctlr->chipinit = ata_sii_chipinit;
115    return 0;
116}
117
118int
119ata_sii_chipinit(device_t dev)
120{
121    struct ata_pci_controller *ctlr = device_get_softc(dev);
122
123    if (ata_setup_interrupt(dev, ata_generic_intr))
124	return ENXIO;
125
126    switch (ctlr->chip->cfg1) {
127    case SII_PRBIO:
128	ctlr->r_type1 = SYS_RES_MEMORY;
129	ctlr->r_rid1 = PCIR_BAR(0);
130	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
131						    &ctlr->r_rid1, RF_ACTIVE)))
132	    return ENXIO;
133
134	ctlr->r_rid2 = PCIR_BAR(2);
135	ctlr->r_type2 = SYS_RES_MEMORY;
136	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
137						    &ctlr->r_rid2, RF_ACTIVE))){
138	    bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1,ctlr->r_res1);
139	    return ENXIO;
140	}
141	ctlr->ch_attach = ata_siiprb_ch_attach;
142	ctlr->reset = ata_siiprb_reset;
143	ctlr->setmode = ata_sata_setmode;
144	ctlr->channels = (ctlr->chip->cfg2 == SII_4CH) ? 4 : 2;
145
146	/* reset controller */
147	ATA_OUTL(ctlr->r_res1, 0x0040, 0x80000000);
148	DELAY(10000);
149	ATA_OUTL(ctlr->r_res1, 0x0040, 0x0000000f);
150
151	/* enable PCI interrupt */
152	pci_write_config(dev, PCIR_COMMAND,
153			 pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
154	break;
155
156    case SII_MEMIO:
157	ctlr->r_type2 = SYS_RES_MEMORY;
158	ctlr->r_rid2 = PCIR_BAR(5);
159	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
160						    &ctlr->r_rid2, RF_ACTIVE))){
161	    if (ctlr->chip->chipid != ATA_SII0680 ||
162			    (pci_read_config(dev, 0x8a, 1) & 1))
163		return ENXIO;
164	}
165
166	if (ctlr->chip->cfg2 & SII_SETCLK) {
167	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
168		pci_write_config(dev, 0x8a,
169				 (pci_read_config(dev, 0x8a, 1) & 0xcf)|0x10,1);
170	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
171		device_printf(dev, "%s could not set ATA133 clock\n",
172			      ctlr->chip->text);
173	}
174
175	/* if we have 4 channels enable the second set */
176	if (ctlr->chip->cfg2 & SII_4CH) {
177	    ATA_OUTL(ctlr->r_res2, 0x0200, 0x00000002);
178	    ctlr->channels = 4;
179	}
180
181	/* dont block interrupts from any channel */
182	pci_write_config(dev, 0x48,
183			 (pci_read_config(dev, 0x48, 4) & ~0x03c00000), 4);
184
185	/* enable PCI interrupt as BIOS might not */
186	pci_write_config(dev, 0x8a, (pci_read_config(dev, 0x8a, 1) & 0x3f), 1);
187
188	if (ctlr->r_res2)
189	    ctlr->ch_attach = ata_sii_ch_attach;
190
191	if (ctlr->chip->max_dma >= ATA_SA150) {
192	    ctlr->reset = ata_sii_reset;
193	    ctlr->setmode = ata_sata_setmode;
194	}
195	else
196	    ctlr->setmode = ata_sii_setmode;
197	break;
198
199    default:
200	if ((pci_read_config(dev, 0x51, 1) & 0x08) != 0x08) {
201	    device_printf(dev, "HW has secondary channel disabled\n");
202	    ctlr->channels = 1;
203	}
204
205	/* enable interrupt as BIOS might not */
206	pci_write_config(dev, 0x71, 0x01, 1);
207
208	ctlr->ch_attach = ata_cmd_ch_attach;
209	ctlr->setmode = ata_cmd_setmode;
210	break;
211    }
212    return 0;
213}
214
215static int
216ata_cmd_ch_attach(device_t dev)
217{
218    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
219    struct ata_channel *ch = device_get_softc(dev);
220
221    /* setup the usual register normal pci style */
222    if (ata_pci_ch_attach(dev))
223	return ENXIO;
224
225    if (ctlr->chip->cfg2 & SII_INTR)
226	ch->hw.status = ata_cmd_status;
227
228    return 0;
229}
230
231static int
232ata_cmd_status(device_t dev)
233{
234    struct ata_channel *ch = device_get_softc(dev);
235    u_int8_t reg71;
236
237    if (((reg71 = pci_read_config(device_get_parent(dev), 0x71, 1)) &
238	 (ch->unit ? 0x08 : 0x04))) {
239	pci_write_config(device_get_parent(dev), 0x71,
240			 reg71 & ~(ch->unit ? 0x04 : 0x08), 1);
241	return ata_pci_status(dev);
242    }
243    return 0;
244}
245
246static void
247ata_cmd_setmode(device_t dev, int mode)
248{
249    device_t gparent = GRANDPARENT(dev);
250    struct ata_pci_controller *ctlr = device_get_softc(gparent);
251    struct ata_channel *ch = device_get_softc(device_get_parent(dev));
252    struct ata_device *atadev = device_get_softc(dev);
253    int devno = (ch->unit << 1) + atadev->unit;
254    int error;
255
256    mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
257
258    mode = ata_check_80pin(dev, mode);
259
260    error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
261
262    if (bootverbose)
263	device_printf(dev, "%ssetting %s on %s chip\n",
264		      (error) ? "FAILURE " : "",
265		      ata_mode2str(mode), ctlr->chip->text);
266    if (!error) {
267	int treg = 0x54 + ((devno < 3) ? (devno << 1) : 7);
268	int ureg = ch->unit ? 0x7b : 0x73;
269
270	if (mode >= ATA_UDMA0) {
271	    int udmatimings[][2] = { { 0x31,  0xc2 }, { 0x21,  0x82 },
272				     { 0x11,  0x42 }, { 0x25,  0x8a },
273				     { 0x15,  0x4a }, { 0x05,  0x0a } };
274
275	    u_int8_t umode = pci_read_config(gparent, ureg, 1);
276
277	    umode &= ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca);
278	    umode |= udmatimings[mode & ATA_MODE_MASK][atadev->unit];
279	    pci_write_config(gparent, ureg, umode, 1);
280	}
281	else if (mode >= ATA_WDMA0) {
282	    int dmatimings[] = { 0x87, 0x32, 0x3f };
283
284	    pci_write_config(gparent, treg, dmatimings[mode & ATA_MODE_MASK],1);
285	    pci_write_config(gparent, ureg,
286			     pci_read_config(gparent, ureg, 1) &
287			     ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca), 1);
288	}
289	else {
290	   int piotimings[] = { 0xa9, 0x57, 0x44, 0x32, 0x3f };
291	    pci_write_config(gparent, treg,
292			     piotimings[(mode & ATA_MODE_MASK) - ATA_PIO0], 1);
293	    pci_write_config(gparent, ureg,
294			     pci_read_config(gparent, ureg, 1) &
295			     ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca), 1);
296	}
297	atadev->mode = mode;
298    }
299}
300
301static int
302ata_sii_ch_attach(device_t dev)
303{
304    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
305    struct ata_channel *ch = device_get_softc(dev);
306    int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2);
307    int i;
308
309    for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
310	ch->r_io[i].res = ctlr->r_res2;
311	ch->r_io[i].offset = 0x80 + i + (unit01 << 6) + (unit10 << 8);
312    }
313    ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
314    ch->r_io[ATA_CONTROL].offset = 0x8a + (unit01 << 6) + (unit10 << 8);
315    ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
316    ata_default_registers(dev);
317
318    ch->r_io[ATA_BMCMD_PORT].res = ctlr->r_res2;
319    ch->r_io[ATA_BMCMD_PORT].offset = 0x00 + (unit01 << 3) + (unit10 << 8);
320    ch->r_io[ATA_BMSTAT_PORT].res = ctlr->r_res2;
321    ch->r_io[ATA_BMSTAT_PORT].offset = 0x02 + (unit01 << 3) + (unit10 << 8);
322    ch->r_io[ATA_BMDTP_PORT].res = ctlr->r_res2;
323    ch->r_io[ATA_BMDTP_PORT].offset = 0x04 + (unit01 << 3) + (unit10 << 8);
324
325    if (ctlr->chip->max_dma >= ATA_SA150) {
326	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
327	ch->r_io[ATA_SSTATUS].offset = 0x104 + (unit01 << 7) + (unit10 << 8);
328	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
329	ch->r_io[ATA_SERROR].offset = 0x108 + (unit01 << 7) + (unit10 << 8);
330	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
331	ch->r_io[ATA_SCONTROL].offset = 0x100 + (unit01 << 7) + (unit10 << 8);
332	ch->flags |= ATA_NO_SLAVE;
333
334	/* enable PHY state change interrupt */
335	ATA_OUTL(ctlr->r_res2, 0x148 + (unit01 << 7) + (unit10 << 8),(1 << 16));
336    }
337
338    if (ctlr->chip->cfg2 & SII_BUG) {
339	/* work around errata in early chips */
340	ch->dma.boundary = 8192;
341	ch->dma.segsize = 15 * DEV_BSIZE;
342    }
343
344    ata_pci_hw(dev);
345    ch->hw.status = ata_sii_status;
346    return 0;
347}
348
349static int
350ata_sii_status(device_t dev)
351{
352    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
353    struct ata_channel *ch = device_get_softc(dev);
354    int offset0 = ((ch->unit & 1) << 3) + ((ch->unit & 2) << 8);
355    int offset1 = ((ch->unit & 1) << 6) + ((ch->unit & 2) << 8);
356
357    /* do we have any PHY events ? */
358    if (ctlr->chip->max_dma >= ATA_SA150 &&
359	(ATA_INL(ctlr->r_res2, 0x10 + offset0) & 0x00000010))
360	ata_sata_phy_check_events(dev);
361
362    if (ATA_INL(ctlr->r_res2, 0xa0 + offset1) & 0x00000800)
363	return ata_pci_status(dev);
364    else
365	return 0;
366}
367
368static void
369ata_sii_reset(device_t dev)
370{
371    if (ata_sata_phy_reset(dev))
372	ata_generic_reset(dev);
373}
374
375static void
376ata_sii_setmode(device_t dev, int mode)
377{
378    device_t gparent = GRANDPARENT(dev);
379    struct ata_pci_controller *ctlr = device_get_softc(gparent);
380    struct ata_channel *ch = device_get_softc(device_get_parent(dev));
381    struct ata_device *atadev = device_get_softc(dev);
382    int rego = (ch->unit << 4) + (atadev->unit << 1);
383    int mreg = ch->unit ? 0x84 : 0x80;
384    int mask = 0x03 << (atadev->unit << 2);
385    int mval = pci_read_config(gparent, mreg, 1) & ~mask;
386    int error;
387
388    mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
389
390    if (ctlr->chip->cfg2 & SII_SETCLK) {
391	if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x79, 1) &
392				 (ch->unit ? 0x02 : 0x01))) {
393	    ata_print_cable(dev, "controller");
394	    mode = ATA_UDMA2;
395	}
396    }
397    else
398	mode = ata_check_80pin(dev, mode);
399
400    error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
401
402    if (bootverbose)
403	device_printf(dev, "%ssetting %s on %s chip\n",
404		      (error) ? "FAILURE " : "",
405		      ata_mode2str(mode), ctlr->chip->text);
406    if (error)
407	return;
408
409    if (mode >= ATA_UDMA0) {
410	u_int8_t udmatimings[] = { 0xf, 0xb, 0x7, 0x5, 0x3, 0x2, 0x1 };
411	u_int8_t ureg = 0xac + rego;
412
413	pci_write_config(gparent, mreg,
414			 mval | (0x03 << (atadev->unit << 2)), 1);
415	pci_write_config(gparent, ureg,
416			 (pci_read_config(gparent, ureg, 1) & ~0x3f) |
417			 udmatimings[mode & ATA_MODE_MASK], 1);
418
419    }
420    else if (mode >= ATA_WDMA0) {
421	u_int8_t dreg = 0xa8 + rego;
422	u_int16_t dmatimings[] = { 0x2208, 0x10c2, 0x10c1 };
423
424	pci_write_config(gparent, mreg,
425			 mval | (0x02 << (atadev->unit << 2)), 1);
426	pci_write_config(gparent, dreg, dmatimings[mode & ATA_MODE_MASK], 2);
427
428    }
429    else {
430	u_int8_t preg = 0xa4 + rego;
431	u_int16_t piotimings[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
432
433	pci_write_config(gparent, mreg,
434			 mval | (0x01 << (atadev->unit << 2)), 1);
435	pci_write_config(gparent, preg, piotimings[mode & ATA_MODE_MASK], 2);
436    }
437    atadev->mode = mode;
438}
439
440
441struct ata_siiprb_dma_prdentry {
442    u_int64_t addr;
443    u_int32_t count;
444    u_int32_t control;
445} __packed;
446
447#define ATA_SIIPRB_DMA_ENTRIES		125
448struct ata_siiprb_ata_command {
449    struct ata_siiprb_dma_prdentry prd[ATA_SIIPRB_DMA_ENTRIES];
450} __packed;
451
452struct ata_siiprb_atapi_command {
453    u_int8_t ccb[16];
454    struct ata_siiprb_dma_prdentry prd[ATA_SIIPRB_DMA_ENTRIES];
455} __packed;
456
457struct ata_siiprb_command {
458    u_int16_t control;
459    u_int16_t protocol_override;
460    u_int32_t transfer_count;
461    u_int8_t fis[24];
462    union {
463	struct ata_siiprb_ata_command ata;
464	struct ata_siiprb_atapi_command atapi;
465    } u;
466} __packed;
467
468static int
469ata_siiprb_ch_attach(device_t dev)
470{
471    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
472    struct ata_channel *ch = device_get_softc(dev);
473    int offset = ch->unit * 0x2000;
474
475    ata_siiprb_dmainit(dev);
476
477    /* set the SATA resources */
478    ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
479    ch->r_io[ATA_SSTATUS].offset = 0x1f04 + offset;
480    ch->r_io[ATA_SERROR].res = ctlr->r_res2;
481    ch->r_io[ATA_SERROR].offset = 0x1f08 + offset;
482    ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
483    ch->r_io[ATA_SCONTROL].offset = 0x1f00 + offset;
484    ch->r_io[ATA_SACTIVE].res = ctlr->r_res2;
485    ch->r_io[ATA_SACTIVE].offset = 0x1f0c + offset;
486
487    ch->hw.status = ata_siiprb_status;
488    ch->hw.begin_transaction = ata_siiprb_begin_transaction;
489    ch->hw.end_transaction = ata_siiprb_end_transaction;
490    ch->hw.command = NULL;	/* not used here */
491    ch->hw.softreset = ata_siiprb_softreset;
492    ch->hw.pm_read = ata_siiprb_pm_read;
493    ch->hw.pm_write = ata_siiprb_pm_write;
494
495    return 0;
496}
497
498static int
499ata_siiprb_status(device_t dev)
500{
501    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
502    struct ata_channel *ch = device_get_softc(dev);
503    u_int32_t action = ATA_INL(ctlr->r_res1, 0x0044);
504    int offset = ch->unit * 0x2000;
505
506    if (action & (1 << ch->unit)) {
507	u_int32_t istatus = ATA_INL(ctlr->r_res2, 0x1008 + offset);
508
509	/* do we have any PHY events ? */
510	ata_sata_phy_check_events(dev);
511
512	/* clear interrupt(s) */
513	ATA_OUTL(ctlr->r_res2, 0x1008 + offset, istatus);
514
515	/* do we have any device action ? */
516	return (istatus & 0x00000003);
517    }
518    return 0;
519}
520
521static int
522ata_siiprb_begin_transaction(struct ata_request *request)
523{
524    struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
525    struct ata_channel *ch = device_get_softc(request->parent);
526    struct ata_siiprb_command *prb;
527    struct ata_siiprb_dma_prdentry *prd;
528    int offset = ch->unit * 0x2000;
529    u_int64_t prb_bus;
530
531    /* SOS XXX */
532    if (request->u.ata.command == ATA_DEVICE_RESET) {
533        request->result = 0;
534        return ATA_OP_FINISHED;
535    }
536
537    /* get a piece of the workspace for this request */
538    prb = (struct ata_siiprb_command *)
539	(ch->dma.work + (sizeof(struct ata_siiprb_command) * request->tag));
540
541    /* clear the prb structure */
542    bzero(prb, sizeof(struct ata_siiprb_command));
543
544    /* setup the FIS for this request */
545    if (!ata_request2fis_h2d(request, &prb->fis[0])) {
546        device_printf(request->dev, "setting up SATA FIS failed\n");
547        request->result = EIO;
548        return ATA_OP_FINISHED;
549    }
550
551    /* setup transfer type */
552    if (request->flags & ATA_R_ATAPI) {
553        struct ata_device *atadev = device_get_softc(request->dev);
554
555	bcopy(request->u.atapi.ccb, prb->u.atapi.ccb, 16);
556	if ((atadev->param.config & ATA_PROTO_MASK) == ATA_PROTO_ATAPI_12)
557	    ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000020);
558	else
559	    ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000020);
560	if (request->flags & ATA_R_READ)
561	    prb->control = htole16(0x0010);
562	if (request->flags & ATA_R_WRITE)
563	    prb->control = htole16(0x0020);
564	prd = &prb->u.atapi.prd[0];
565    }
566    else
567	prd = &prb->u.ata.prd[0];
568
569    /* if request moves data setup and load SG list */
570    if (request->flags & (ATA_R_READ | ATA_R_WRITE)) {
571	if (ch->dma.load(request, prd, NULL)) {
572	    device_printf(request->dev, "setting up DMA failed\n");
573	    request->result = EIO;
574	    return ATA_OP_FINISHED;
575	}
576    }
577
578    /* activate the prb */
579    prb_bus = ch->dma.work_bus +
580	      (sizeof(struct ata_siiprb_command) * request->tag);
581    ATA_OUTL(ctlr->r_res2,
582	     0x1c00 + offset + (request->tag * sizeof(u_int64_t)), prb_bus);
583    ATA_OUTL(ctlr->r_res2,
584	     0x1c04 + offset + (request->tag * sizeof(u_int64_t)), prb_bus>>32);
585
586    /* start the timeout */
587    callout_reset(&request->callout, request->timeout * hz,
588                  (timeout_t*)ata_timeout, request);
589    return ATA_OP_CONTINUES;
590}
591
592static int
593ata_siiprb_end_transaction(struct ata_request *request)
594{
595    struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
596    struct ata_channel *ch = device_get_softc(request->parent);
597    struct ata_siiprb_command *prb;
598    int offset = ch->unit * 0x2000;
599    int error, timeout;
600
601    /* kill the timeout */
602    callout_stop(&request->callout);
603
604    prb = (struct ata_siiprb_command *)
605	((u_int8_t *)rman_get_virtual(ctlr->r_res2)+(request->tag << 7)+offset);
606
607    /* any controller errors flagged ? */
608    if ((error = ATA_INL(ctlr->r_res2, 0x1024 + offset))) {
609	if (bootverbose)
610	    printf("ata_siiprb_end_transaction %s error=%08x\n",
611		   ata_cmd2str(request), error);
612
613	/* if device error status get details */
614	if (error == 1 || error == 2) {
615	    request->status = prb->fis[2];
616	    if (request->status & ATA_S_ERROR)
617		request->error = prb->fis[3];
618	}
619
620 	/* SOS XXX handle other controller errors here */
621
622	/* initialize port */
623	ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000004);
624
625	/* poll for port ready */
626	for (timeout = 0; timeout < 1000; timeout++) {
627	    DELAY(1000);
628            if (ATA_INL(ctlr->r_res2, 0x1008 + offset) & 0x00040000)
629        	break;
630	}
631	if (bootverbose) {
632	    if (timeout >= 1000)
633		device_printf(ch->dev, "port initialize timeout\n");
634	    else
635		device_printf(ch->dev, "port initialize time=%dms\n", timeout);
636	}
637    }
638
639    /* on control commands read back registers to the request struct */
640    if (request->flags & ATA_R_CONTROL) {
641        struct ata_device *atadev = device_get_softc(request->dev);
642
643	request->u.ata.count = prb->fis[12] | ((u_int16_t)prb->fis[13] << 8);
644	request->u.ata.lba = prb->fis[4] | ((u_int64_t)prb->fis[5] << 8) |
645			     ((u_int64_t)prb->fis[6] << 16);
646	if (atadev->flags & ATA_D_48BIT_ACTIVE)
647	    request->u.ata.lba |= ((u_int64_t)prb->fis[8] << 24) |
648				  ((u_int64_t)prb->fis[9] << 32) |
649				  ((u_int64_t)prb->fis[10] << 40);
650	else
651	    request->u.ata.lba |= ((u_int64_t)(prb->fis[7] & 0x0f) << 24);
652    }
653
654    /* update progress */
655    if (!(request->status & ATA_S_ERROR) && !(request->flags & ATA_R_TIMEOUT)) {
656	if (request->flags & ATA_R_READ)
657	    request->donecount = prb->transfer_count;
658	else
659	    request->donecount = request->bytecount;
660    }
661
662    /* release SG list etc */
663    ch->dma.unload(request);
664
665    return ATA_OP_FINISHED;
666}
667
668static int
669ata_siiprb_issue_cmd(device_t dev)
670{
671    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
672    struct ata_channel *ch = device_get_softc(dev);
673    u_int64_t prb_bus = ch->dma.work_bus;
674    u_int32_t status;
675    int offset = ch->unit * 0x2000;
676    int timeout;
677
678    /* issue command to chip */
679    ATA_OUTL(ctlr->r_res2, 0x1c00 + offset, prb_bus);
680    ATA_OUTL(ctlr->r_res2, 0x1c04 + offset, prb_bus >> 32);
681
682    /* poll for command finished */
683    for (timeout = 0; timeout < 10000; timeout++) {
684        DELAY(1000);
685        if ((status = ATA_INL(ctlr->r_res2, 0x1008 + offset)) & 0x00010000)
686            break;
687    }
688    // SOS XXX ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x00010000);
689    ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x08ff08ff);
690
691    if (timeout >= 1000)
692	return EIO;
693
694    if (bootverbose)
695	device_printf(dev, "siiprb_issue_cmd time=%dms status=%08x\n",
696		      timeout, status);
697    return 0;
698}
699
700static int
701ata_siiprb_pm_read(device_t dev, int port, int reg, u_int32_t *result)
702{
703    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
704    struct ata_channel *ch = device_get_softc(dev);
705    struct ata_siiprb_command *prb = (struct ata_siiprb_command *)ch->dma.work;
706    int offset = ch->unit * 0x2000;
707
708    bzero(prb, sizeof(struct ata_siiprb_command));
709    prb->fis[0] = 0x27;	/* host to device */
710    prb->fis[1] = 0x8f;	/* command FIS to PM port */
711    prb->fis[2] = ATA_READ_PM;
712    prb->fis[3] = reg;
713    prb->fis[7] = port;
714    if (ata_siiprb_issue_cmd(dev)) {
715	device_printf(dev, "error reading PM port\n");
716	return EIO;
717    }
718    prb = (struct ata_siiprb_command *)
719	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
720    *result = prb->fis[12]|(prb->fis[4]<<8)|(prb->fis[5]<<16)|(prb->fis[6]<<24);
721    return 0;
722}
723
724static int
725ata_siiprb_pm_write(device_t dev, int port, int reg, u_int32_t value)
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    bzero(prb, sizeof(struct ata_siiprb_command));
733    prb->fis[0] = 0x27;	/* host to device */
734    prb->fis[1] = 0x8f;	/* command FIS to PM port */
735    prb->fis[2] = ATA_WRITE_PM;
736    prb->fis[3] = reg;
737    prb->fis[7] = port;
738    prb->fis[12] = value & 0xff;
739    prb->fis[4] = (value >> 8) & 0xff;;
740    prb->fis[5] = (value >> 16) & 0xff;;
741    prb->fis[6] = (value >> 24) & 0xff;;
742    if (ata_siiprb_issue_cmd(dev)) {
743	device_printf(dev, "error writing PM port\n");
744	return ATA_E_ABORT;
745    }
746    prb = (struct ata_siiprb_command *)
747	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
748    return prb->fis[3];
749}
750
751static u_int32_t
752ata_siiprb_softreset(device_t dev, int port)
753{
754    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
755    struct ata_channel *ch = device_get_softc(dev);
756    struct ata_siiprb_command *prb = (struct ata_siiprb_command *)ch->dma.work;
757    u_int32_t signature;
758    int offset = ch->unit * 0x2000;
759
760    /* setup the workspace for a soft reset command */
761    bzero(prb, sizeof(struct ata_siiprb_command));
762    prb->control = htole16(0x0080);
763    prb->fis[1] = port & 0x0f;
764
765    /* issue soft reset */
766    if (ata_siiprb_issue_cmd(dev))
767	return -1;
768
769    ata_udelay(150000);
770
771    /* get possible signature */
772    prb = (struct ata_siiprb_command *)
773	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
774    signature=prb->fis[12]|(prb->fis[4]<<8)|(prb->fis[5]<<16)|(prb->fis[6]<<24);
775
776    /* clear error bits/interrupt */
777    ATA_IDX_OUTL(ch, ATA_SERROR, 0xffffffff);
778
779    return signature;
780}
781
782static void
783ata_siiprb_reset(device_t dev)
784{
785    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
786    struct ata_channel *ch = device_get_softc(dev);
787    int offset = ch->unit * 0x2000;
788    u_int32_t status, signature;
789    int timeout;
790
791    /* disable interrupts */
792    ATA_OUTL(ctlr->r_res2, 0x1014 + offset, 0x000000ff);
793
794    /* reset channel HW */
795    ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000001);
796    DELAY(1000);
797    ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000001);
798    DELAY(10000);
799
800    /* poll for channel ready */
801    for (timeout = 0; timeout < 1000; timeout++) {
802        if ((status = ATA_INL(ctlr->r_res2, 0x1008 + offset)) & 0x00040000)
803            break;
804        DELAY(1000);
805    }
806
807    if (bootverbose) {
808	if (timeout >= 1000)
809	    device_printf(dev, "channel HW reset timeout\n");
810	else
811	    device_printf(dev, "channel HW reset time=%dms\n", timeout);
812    }
813
814    /* reset phy */
815    if (!ata_sata_phy_reset(dev)) {
816	if (bootverbose)
817	    device_printf(dev, "phy reset found no device\n");
818	ch->devices = 0;
819	goto finish;
820    }
821
822    /* issue soft reset */
823    signature = ata_siiprb_softreset(dev, ATA_PM);
824    if (bootverbose)
825	device_printf(dev, "SIGNATURE=%08x\n", signature);
826
827    /* figure out whats there */
828    switch (signature) {
829    case 0x00000101:
830	ch->devices = ATA_ATA_MASTER;
831	break;
832    case 0x96690101:
833	ch->devices = ATA_PORTMULTIPLIER;
834	ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x2000); /* enable PM support */
835	//SOS XXX need to clear all PM status and interrupts!!!!
836	ata_pm_identify(dev);
837	break;
838    case 0xeb140101:
839	ch->devices = ATA_ATAPI_MASTER;
840	break;
841    default:
842	ch->devices = 0;
843    }
844    if (bootverbose)
845        device_printf(dev, "siiprb_reset devices=%08x\n", ch->devices);
846
847finish:
848    /* clear interrupt(s) */
849    ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x000008ff);
850
851    /* require explicit interrupt ack */
852    ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000008);
853
854    /* 64bit mode */
855    ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000400);
856
857    /* enable interrupts wanted */
858    ATA_OUTL(ctlr->r_res2, 0x1010 + offset, 0x000000ff);
859}
860
861static void
862ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
863{
864    struct ata_dmasetprd_args *args = xsc;
865    struct ata_siiprb_dma_prdentry *prd = args->dmatab;
866    int i;
867
868    if ((args->error = error))
869	return;
870
871    for (i = 0; i < nsegs; i++) {
872	prd[i].addr = htole64(segs[i].ds_addr);
873	prd[i].count = htole32(segs[i].ds_len);
874    }
875    prd[i - 1].control = htole32(ATA_DMA_EOT);
876    KASSERT(nsegs <= ATA_SIIPRB_DMA_ENTRIES,("too many DMA segment entries\n"));
877    args->nsegs = nsegs;
878}
879
880static void
881ata_siiprb_dmainit(device_t dev)
882{
883    struct ata_channel *ch = device_get_softc(dev);
884
885    ata_dmainit(dev);
886    /* note start and stop are not used here */
887    ch->dma.setprd = ata_siiprb_dmasetprd;
888    ch->dma.max_address = BUS_SPACE_MAXADDR;
889}
890
891ATA_DECLARE_DRIVER(ata_sii);
892