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 */
54static int ata_cmd_ch_attach(device_t dev);
55static int ata_cmd_status(device_t dev);
56static int ata_cmd_setmode(device_t dev, int target, int mode);
57static int ata_sii_ch_attach(device_t dev);
58static int ata_sii_ch_detach(device_t dev);
59static int ata_sii_status(device_t dev);
60static void ata_sii_reset(device_t dev);
61static int ata_sii_setmode(device_t dev, int target, int mode);
62static int ata_siiprb_ch_attach(device_t dev);
63static int ata_siiprb_ch_detach(device_t dev);
64static int ata_siiprb_status(device_t dev);
65static int ata_siiprb_begin_transaction(struct ata_request *request);
66static int ata_siiprb_end_transaction(struct ata_request *request);
67static int ata_siiprb_pm_read(device_t dev, int port, int reg, u_int32_t *result);
68static int ata_siiprb_pm_write(device_t dev, int port, int reg, u_int32_t result);
69static u_int32_t ata_siiprb_softreset(device_t dev, int port);
70static void ata_siiprb_reset(device_t dev);
71static void ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
72static 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 */
85static int
86ata_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
119int
120ata_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
229static int
230ata_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
247static int
248ata_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
262static int
263ata_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
296static int
297ata_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
351static int
352ata_sii_ch_detach(device_t dev)
353{
354
355    ata_pci_dmafini(dev);
356    return (0);
357}
358
359static int
360ata_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
378static void
379ata_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
397static int
398ata_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
449struct 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
456struct ata_siiprb_ata_command {
457    struct ata_siiprb_dma_prdentry prd[ATA_SIIPRB_DMA_ENTRIES];
458} __packed;
459
460struct ata_siiprb_atapi_command {
461    u_int8_t ccb[16];
462    struct ata_siiprb_dma_prdentry prd[ATA_SIIPRB_DMA_ENTRIES];
463} __packed;
464
465struct 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
476static int
477ata_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
507static int
508ata_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
519static int
520ata_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
542static int
543ata_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
609static int
610ata_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
687static int
688ata_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
724static int
725ata_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
767static int
768ata_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
813static u_int32_t
814ata_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
844static void
845ata_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
909finish:
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
923static void
924ata_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
942static void
943ata_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
954ATA_DECLARE_DRIVER(ata_sii);
955