1/*-
2 * Copyright (c) 1998 - 2008 S�ren Schmidt <sos@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer,
10 *    without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#include "opt_ata.h"
31#include <sys/param.h>
32#include <sys/module.h>
33#include <sys/systm.h>
34#include <sys/kernel.h>
35#include <sys/ata.h>
36#include <sys/bus.h>
37#include <sys/endian.h>
38#include <sys/malloc.h>
39#include <sys/lock.h>
40#include <sys/mutex.h>
41#include <sys/sema.h>
42#include <sys/taskqueue.h>
43#include <vm/uma.h>
44#include <machine/stdarg.h>
45#include <machine/resource.h>
46#include <machine/bus.h>
47#include <sys/rman.h>
48#include <dev/pci/pcivar.h>
49#include <dev/pci/pcireg.h>
50#include <dev/ata/ata-all.h>
51#include <dev/ata/ata-pci.h>
52#include <ata_if.h>
53
54/* local prototypes */
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 * Silicon Image Inc. (SiI) (former CMD) chipset support functions
85 */
86static int
87ata_sii_probe(device_t dev)
88{
89    struct ata_pci_controller *ctlr = device_get_softc(dev);
90    static const struct ata_chip_id ids[] =
91    {{ ATA_SII3114,   0x00, SII_MEMIO, SII_4CH,    ATA_SA150, "3114" },
92     { ATA_SII3512,   0x02, SII_MEMIO, 0,          ATA_SA150, "3512" },
93     { ATA_SII3112,   0x02, SII_MEMIO, 0,          ATA_SA150, "3112" },
94     { ATA_SII3112_1, 0x02, SII_MEMIO, 0,          ATA_SA150, "3112" },
95     { ATA_SII3512,   0x00, SII_MEMIO, SII_BUG,    ATA_SA150, "3512" },
96     { ATA_SII3112,   0x00, SII_MEMIO, SII_BUG,    ATA_SA150, "3112" },
97     { ATA_SII3112_1, 0x00, SII_MEMIO, SII_BUG,    ATA_SA150, "3112" },
98     { ATA_SII3124,   0x00, SII_PRBIO, SII_4CH,    ATA_SA300, "3124" },
99     { ATA_SII3132,   0x00, SII_PRBIO, 0,          ATA_SA300, "3132" },
100     { ATA_SII3132_1, 0x00, SII_PRBIO, 0,          ATA_SA300, "3132" },
101     { ATA_SII3132_2, 0x00, SII_PRBIO, 0,          ATA_SA300, "3132" },
102     { ATA_SII0680,   0x00, SII_MEMIO, SII_SETCLK, ATA_UDMA6, "680" },
103     { ATA_CMD649,    0x00, 0,         SII_INTR,   ATA_UDMA5, "(CMD) 649" },
104     { ATA_CMD648,    0x00, 0,         SII_INTR,   ATA_UDMA4, "(CMD) 648" },
105     { ATA_CMD646,    0x07, 0,         0,          ATA_UDMA2, "(CMD) 646U2" },
106     { ATA_CMD646,    0x00, 0,         0,          ATA_WDMA2, "(CMD) 646" },
107     { 0, 0, 0, 0, 0, 0}};
108
109    if (pci_get_vendor(dev) != ATA_SILICON_IMAGE_ID)
110	return ENXIO;
111
112    if (!(ctlr->chip = ata_match_chip(dev, ids)))
113	return ENXIO;
114
115    ata_set_desc(dev);
116    ctlr->chipinit = ata_sii_chipinit;
117    return (BUS_PROBE_DEFAULT);
118}
119
120int
121ata_sii_chipinit(device_t dev)
122{
123    struct ata_pci_controller *ctlr = device_get_softc(dev);
124
125    if (ata_setup_interrupt(dev, ata_generic_intr))
126	return ENXIO;
127
128    switch (ctlr->chip->cfg1) {
129    case SII_PRBIO:
130	ctlr->r_type1 = SYS_RES_MEMORY;
131	ctlr->r_rid1 = PCIR_BAR(0);
132	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
133						    &ctlr->r_rid1, RF_ACTIVE)))
134	    return ENXIO;
135
136	ctlr->r_rid2 = PCIR_BAR(2);
137	ctlr->r_type2 = SYS_RES_MEMORY;
138	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
139						    &ctlr->r_rid2, RF_ACTIVE))){
140	    bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1,ctlr->r_res1);
141	    return ENXIO;
142	}
143#ifdef __sparc64__
144	if (!bus_space_map(rman_get_bustag(ctlr->r_res2),
145	    rman_get_bushandle(ctlr->r_res2), rman_get_size(ctlr->r_res2),
146	    BUS_SPACE_MAP_LINEAR, NULL)) {
147	    	bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1,
148		    ctlr->r_res1);
149		bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2,
150		    ctlr->r_res2);
151		return (ENXIO);
152	}
153#endif
154	ctlr->ch_attach = ata_siiprb_ch_attach;
155	ctlr->ch_detach = ata_siiprb_ch_detach;
156	ctlr->reset = ata_siiprb_reset;
157	ctlr->setmode = ata_sata_setmode;
158	ctlr->getrev = ata_sata_getrev;
159	ctlr->channels = (ctlr->chip->cfg2 == SII_4CH) ? 4 : 2;
160
161	/* reset controller */
162	ATA_OUTL(ctlr->r_res1, 0x0040, 0x80000000);
163	DELAY(10000);
164	ATA_OUTL(ctlr->r_res1, 0x0040, 0x0000000f);
165	break;
166
167    case SII_MEMIO:
168	ctlr->r_type2 = SYS_RES_MEMORY;
169	ctlr->r_rid2 = PCIR_BAR(5);
170	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
171						    &ctlr->r_rid2, RF_ACTIVE))){
172	    if (ctlr->chip->chipid != ATA_SII0680 ||
173			    (pci_read_config(dev, 0x8a, 1) & 1))
174		return ENXIO;
175	}
176
177	if (ctlr->chip->cfg2 & SII_SETCLK) {
178	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
179		pci_write_config(dev, 0x8a,
180				 (pci_read_config(dev, 0x8a, 1) & 0xcf)|0x10,1);
181	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
182		device_printf(dev, "%s could not set ATA133 clock\n",
183			      ctlr->chip->text);
184	}
185
186	/* if we have 4 channels enable the second set */
187	if (ctlr->chip->cfg2 & SII_4CH) {
188	    ATA_OUTL(ctlr->r_res2, 0x0200, 0x00000002);
189	    ctlr->channels = 4;
190	}
191
192	/* dont block interrupts from any channel */
193	pci_write_config(dev, 0x48,
194			 (pci_read_config(dev, 0x48, 4) & ~0x03c00000), 4);
195
196	/* enable PCI interrupt as BIOS might not */
197	pci_write_config(dev, 0x8a, (pci_read_config(dev, 0x8a, 1) & 0x3f), 1);
198
199	if (ctlr->r_res2) {
200	    ctlr->ch_attach = ata_sii_ch_attach;
201	    ctlr->ch_detach = ata_sii_ch_detach;
202	}
203
204	if (ctlr->chip->max_dma >= ATA_SA150) {
205	    ctlr->reset = ata_sii_reset;
206	    ctlr->setmode = ata_sata_setmode;
207	    ctlr->getrev = ata_sata_getrev;
208	}
209	else
210	    ctlr->setmode = ata_sii_setmode;
211	break;
212
213    default:
214	if ((pci_read_config(dev, 0x51, 1) & 0x08) != 0x08) {
215	    device_printf(dev, "HW has secondary channel disabled\n");
216	    ctlr->channels = 1;
217	}
218
219	/* enable interrupt as BIOS might not */
220	pci_write_config(dev, 0x71, 0x01, 1);
221
222	ctlr->ch_attach = ata_cmd_ch_attach;
223	ctlr->ch_detach = ata_pci_ch_detach;
224	ctlr->setmode = ata_cmd_setmode;
225	break;
226    }
227    return 0;
228}
229
230static int
231ata_cmd_ch_attach(device_t dev)
232{
233    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
234    struct ata_channel *ch = device_get_softc(dev);
235
236    /* setup the usual register normal pci style */
237    if (ata_pci_ch_attach(dev))
238	return ENXIO;
239
240    if (ctlr->chip->cfg2 & SII_INTR)
241	ch->hw.status = ata_cmd_status;
242
243#ifdef ATA_CAM
244	ch->flags |= ATA_NO_ATAPI_DMA;
245#endif
246
247    return 0;
248}
249
250static int
251ata_cmd_status(device_t dev)
252{
253    struct ata_channel *ch = device_get_softc(dev);
254    u_int8_t reg71;
255
256    if (((reg71 = pci_read_config(device_get_parent(dev), 0x71, 1)) &
257	 (ch->unit ? 0x08 : 0x04))) {
258	pci_write_config(device_get_parent(dev), 0x71,
259			 reg71 & ~(ch->unit ? 0x04 : 0x08), 1);
260	return ata_pci_status(dev);
261    }
262    return 0;
263}
264
265static int
266ata_cmd_setmode(device_t dev, int target, int mode)
267{
268	device_t parent = device_get_parent(dev);
269	struct ata_pci_controller *ctlr = device_get_softc(parent);
270	struct ata_channel *ch = device_get_softc(dev);
271	int devno = (ch->unit << 1) + target;
272	int treg = 0x54 + ((devno < 3) ? (devno << 1) : 7);
273	int ureg = ch->unit ? 0x7b : 0x73;
274	int piomode;
275	static const uint8_t piotimings[] =
276	    { 0xa9, 0x57, 0x44, 0x32, 0x3f, 0x87, 0x32, 0x3f };
277	static const uint8_t udmatimings[][2] =
278	    { { 0x31,  0xc2 }, { 0x21,  0x82 }, { 0x11,  0x42 },
279	      { 0x25,  0x8a }, { 0x15,  0x4a }, { 0x05,  0x0a } };
280
281	mode = min(mode, ctlr->chip->max_dma);
282	if (mode >= ATA_UDMA0) {
283		u_int8_t umode = pci_read_config(parent, ureg, 1);
284
285	        umode &= ~(target == 0 ? 0x35 : 0xca);
286		umode |= udmatimings[mode & ATA_MODE_MASK][target];
287		pci_write_config(parent, ureg, umode, 1);
288		piomode = ATA_PIO4;
289	} else {
290		pci_write_config(parent, ureg,
291			     pci_read_config(parent, ureg, 1) &
292			     ~(target == 0 ? 0x35 : 0xca), 1);
293		piomode = mode;
294	}
295	pci_write_config(parent, treg, piotimings[ata_mode2idx(piomode)], 1);
296	return (mode);
297}
298
299static int
300ata_sii_ch_attach(device_t dev)
301{
302    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
303    struct ata_channel *ch = device_get_softc(dev);
304    int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2);
305    int i;
306
307    for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
308	ch->r_io[i].res = ctlr->r_res2;
309	ch->r_io[i].offset = 0x80 + i + (unit01 << 6) + (unit10 << 8);
310    }
311    ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
312    ch->r_io[ATA_CONTROL].offset = 0x8a + (unit01 << 6) + (unit10 << 8);
313    ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
314    ata_default_registers(dev);
315
316    ch->r_io[ATA_BMCMD_PORT].res = ctlr->r_res2;
317    ch->r_io[ATA_BMCMD_PORT].offset = 0x00 + (unit01 << 3) + (unit10 << 8);
318    ch->r_io[ATA_BMSTAT_PORT].res = ctlr->r_res2;
319    ch->r_io[ATA_BMSTAT_PORT].offset = 0x02 + (unit01 << 3) + (unit10 << 8);
320    ch->r_io[ATA_BMDTP_PORT].res = ctlr->r_res2;
321    ch->r_io[ATA_BMDTP_PORT].offset = 0x04 + (unit01 << 3) + (unit10 << 8);
322
323    if (ctlr->chip->max_dma >= ATA_SA150) {
324	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
325	ch->r_io[ATA_SSTATUS].offset = 0x104 + (unit01 << 7) + (unit10 << 8);
326	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
327	ch->r_io[ATA_SERROR].offset = 0x108 + (unit01 << 7) + (unit10 << 8);
328	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
329	ch->r_io[ATA_SCONTROL].offset = 0x100 + (unit01 << 7) + (unit10 << 8);
330	ch->flags |= ATA_NO_SLAVE;
331	ch->flags |= ATA_SATA;
332	ch->flags |= ATA_KNOWN_PRESENCE;
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    if (ctlr->chip->cfg2 & SII_SETCLK)
347	ch->flags |= ATA_CHECKS_CABLE;
348
349    ata_pci_dmainit(dev);
350
351    return 0;
352}
353
354static int
355ata_sii_ch_detach(device_t dev)
356{
357
358    ata_pci_dmafini(dev);
359    return (0);
360}
361
362static int
363ata_sii_status(device_t dev)
364{
365    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
366    struct ata_channel *ch = device_get_softc(dev);
367    int offset0 = ((ch->unit & 1) << 3) + ((ch->unit & 2) << 8);
368    int offset1 = ((ch->unit & 1) << 6) + ((ch->unit & 2) << 8);
369
370    /* do we have any PHY events ? */
371    if (ctlr->chip->max_dma >= ATA_SA150 &&
372	(ATA_INL(ctlr->r_res2, 0x10 + offset0) & 0x00000010))
373	ata_sata_phy_check_events(dev, -1);
374
375    if (ATA_INL(ctlr->r_res2, 0xa0 + offset1) & 0x00000800)
376	return ata_pci_status(dev);
377    else
378	return 0;
379}
380
381static void
382ata_sii_reset(device_t dev)
383{
384    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
385    struct ata_channel *ch = device_get_softc(dev);
386    int offset = ((ch->unit & 1) << 7) + ((ch->unit & 2) << 8);
387    uint32_t val;
388
389    /* Apply R_ERR on DMA activate FIS errata workaround. */
390    val = ATA_INL(ctlr->r_res2, 0x14c + offset);
391    if ((val & 0x3) == 0x1)
392	ATA_OUTL(ctlr->r_res2, 0x14c + offset, val & ~0x3);
393
394    if (ata_sata_phy_reset(dev, -1, 1))
395	ata_generic_reset(dev);
396    else
397	ch->devices = 0;
398}
399
400static int
401ata_sii_setmode(device_t dev, int target, int mode)
402{
403	device_t parent = device_get_parent(dev);
404	struct ata_pci_controller *ctlr = device_get_softc(parent);
405	struct ata_channel *ch = device_get_softc(dev);
406	int rego = (ch->unit << 4) + (target << 1);
407	int mreg = ch->unit ? 0x84 : 0x80;
408	int mask = 0x03 << (target << 2);
409	int mval = pci_read_config(parent, mreg, 1) & ~mask;
410	int piomode;
411	u_int8_t preg = 0xa4 + rego;
412	u_int8_t dreg = 0xa8 + rego;
413	u_int8_t ureg = 0xac + rego;
414	static const uint16_t piotimings[] =
415	    { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
416	static const uint16_t dmatimings[] = { 0x2208, 0x10c2, 0x10c1 };
417	static const uint8_t udmatimings[] =
418	    { 0xf, 0xb, 0x7, 0x5, 0x3, 0x2, 0x1 };
419
420	mode = min(mode, ctlr->chip->max_dma);
421
422	if (ctlr->chip->cfg2 & SII_SETCLK) {
423	    if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
424		(pci_read_config(parent, 0x79, 1) &
425				 (ch->unit ? 0x02 : 0x01))) {
426		ata_print_cable(dev, "controller");
427		mode = ATA_UDMA2;
428	    }
429	}
430	if (mode >= ATA_UDMA0) {
431		pci_write_config(parent, mreg,
432			 mval | (0x03 << (target << 2)), 1);
433		pci_write_config(parent, ureg,
434			 (pci_read_config(parent, ureg, 1) & ~0x3f) |
435			 udmatimings[mode & ATA_MODE_MASK], 1);
436		piomode = ATA_PIO4;
437	} else if (mode >= ATA_WDMA0) {
438		pci_write_config(parent, mreg,
439			 mval | (0x02 << (target << 2)), 1);
440		pci_write_config(parent, dreg, dmatimings[mode & ATA_MODE_MASK], 2);
441		piomode = (mode == ATA_WDMA0) ? ATA_PIO0 :
442		    (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4;
443	} else {
444		pci_write_config(parent, mreg,
445			 mval | (0x01 << (target << 2)), 1);
446		piomode = mode;
447	}
448	pci_write_config(parent, preg, piotimings[ata_mode2idx(piomode)], 2);
449	return (mode);
450}
451
452struct ata_siiprb_dma_prdentry {
453    u_int64_t addr;
454    u_int32_t count;
455    u_int32_t control;
456} __packed;
457
458#define ATA_SIIPRB_DMA_ENTRIES		129
459struct ata_siiprb_ata_command {
460    struct ata_siiprb_dma_prdentry prd[ATA_SIIPRB_DMA_ENTRIES];
461} __packed;
462
463struct ata_siiprb_atapi_command {
464    u_int8_t ccb[16];
465    struct ata_siiprb_dma_prdentry prd[ATA_SIIPRB_DMA_ENTRIES];
466} __packed;
467
468struct ata_siiprb_command {
469    u_int16_t control;
470    u_int16_t protocol_override;
471    u_int32_t transfer_count;
472    u_int8_t fis[24];
473    union {
474	struct ata_siiprb_ata_command ata;
475	struct ata_siiprb_atapi_command atapi;
476    } u;
477} __packed;
478
479static int
480ata_siiprb_ch_attach(device_t dev)
481{
482    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
483    struct ata_channel *ch = device_get_softc(dev);
484    int offset = ch->unit * 0x2000;
485
486    ata_siiprb_dmainit(dev);
487
488    /* set the SATA resources */
489    ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
490    ch->r_io[ATA_SSTATUS].offset = 0x1f04 + offset;
491    ch->r_io[ATA_SERROR].res = ctlr->r_res2;
492    ch->r_io[ATA_SERROR].offset = 0x1f08 + offset;
493    ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
494    ch->r_io[ATA_SCONTROL].offset = 0x1f00 + offset;
495    ch->r_io[ATA_SACTIVE].res = ctlr->r_res2;
496    ch->r_io[ATA_SACTIVE].offset = 0x1f0c + offset;
497
498    ch->hw.status = ata_siiprb_status;
499    ch->hw.begin_transaction = ata_siiprb_begin_transaction;
500    ch->hw.end_transaction = ata_siiprb_end_transaction;
501    ch->hw.command = NULL;	/* not used here */
502    ch->hw.softreset = ata_siiprb_softreset;
503    ch->hw.pm_read = ata_siiprb_pm_read;
504    ch->hw.pm_write = ata_siiprb_pm_write;
505    ch->flags |= ATA_NO_SLAVE;
506    ch->flags |= ATA_SATA;
507    return 0;
508}
509
510static int
511ata_siiprb_ch_detach(device_t dev)
512{
513    struct ata_channel *ch = device_get_softc(dev);
514
515    if (ch->dma.work_tag && ch->dma.work_map)
516	bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map,
517	    BUS_DMASYNC_POSTWRITE);
518    ata_dmafini(dev);
519    return 0;
520}
521
522static int
523ata_siiprb_status(device_t dev)
524{
525    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
526    struct ata_channel *ch = device_get_softc(dev);
527    u_int32_t action = ATA_INL(ctlr->r_res1, 0x0044);
528    int offset = ch->unit * 0x2000;
529
530    if (action & (1 << ch->unit)) {
531	u_int32_t istatus = ATA_INL(ctlr->r_res2, 0x1008 + offset);
532
533	/* do we have any PHY events ? */
534	ata_sata_phy_check_events(dev, -1);
535
536	/* clear interrupt(s) */
537	ATA_OUTL(ctlr->r_res2, 0x1008 + offset, istatus);
538
539	/* do we have any device action ? */
540	return (istatus & 0x00000003);
541    }
542    return 0;
543}
544
545static int
546ata_siiprb_begin_transaction(struct ata_request *request)
547{
548    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
549    struct ata_channel *ch = device_get_softc(request->parent);
550    struct ata_siiprb_command *prb;
551    struct ata_siiprb_dma_prdentry *prd;
552    int offset = ch->unit * 0x2000;
553    u_int64_t prb_bus;
554
555    /* SOS XXX */
556    if (request->u.ata.command == ATA_DEVICE_RESET) {
557        request->result = 0;
558        return ATA_OP_FINISHED;
559    }
560
561    /* get a piece of the workspace for this request */
562    prb = (struct ata_siiprb_command *)ch->dma.work;
563
564    /* clear the prb structure */
565    bzero(prb, sizeof(struct ata_siiprb_command));
566
567    /* setup the FIS for this request */
568    if (!ata_request2fis_h2d(request, &prb->fis[0])) {
569        device_printf(request->parent, "setting up SATA FIS failed\n");
570        request->result = EIO;
571        return ATA_OP_FINISHED;
572    }
573
574    /* setup transfer type */
575    if (request->flags & ATA_R_ATAPI) {
576	bcopy(request->u.atapi.ccb, prb->u.atapi.ccb, 16);
577	if (request->flags & ATA_R_ATAPI16)
578	    ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000020);
579	else
580	    ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000020);
581	if (request->flags & ATA_R_READ)
582	    prb->control = htole16(0x0010);
583	if (request->flags & ATA_R_WRITE)
584	    prb->control = htole16(0x0020);
585	prd = &prb->u.atapi.prd[0];
586    }
587    else
588	prd = &prb->u.ata.prd[0];
589
590    /* if request moves data setup and load SG list */
591    if (request->flags & (ATA_R_READ | ATA_R_WRITE)) {
592	if (ch->dma.load(request, prd, NULL)) {
593	    device_printf(request->parent, "setting up DMA failed\n");
594	    request->result = EIO;
595	    return ATA_OP_FINISHED;
596	}
597    }
598
599    bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, BUS_DMASYNC_PREWRITE);
600
601    /* activate the prb */
602    prb_bus = ch->dma.work_bus;
603    ATA_OUTL(ctlr->r_res2, 0x1c00 + offset, prb_bus);
604    ATA_OUTL(ctlr->r_res2, 0x1c04 + offset, prb_bus>>32);
605
606    /* start the timeout */
607    callout_reset(&request->callout, request->timeout * hz,
608                  (timeout_t*)ata_timeout, request);
609    return ATA_OP_CONTINUES;
610}
611
612static int
613ata_siiprb_end_transaction(struct ata_request *request)
614{
615    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
616    struct ata_channel *ch = device_get_softc(request->parent);
617    struct ata_siiprb_command *prb;
618    int offset = ch->unit * 0x2000;
619    int error, timeout;
620
621    /* kill the timeout */
622    callout_stop(&request->callout);
623
624    bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, BUS_DMASYNC_POSTWRITE);
625
626    prb = (struct ata_siiprb_command *)
627	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
628
629    /* any controller errors flagged ? */
630    if ((error = ATA_INL(ctlr->r_res2, 0x1024 + offset))) {
631	if (bootverbose)
632	    printf("ata_siiprb_end_transaction %s error=%08x\n",
633		   ata_cmd2str(request), error);
634
635	/* if device error status get details */
636	if (error == 1 || error == 2) {
637	    request->status = prb->fis[2];
638	    if (request->status & ATA_S_ERROR)
639		request->error = prb->fis[3];
640	}
641
642 	/* SOS XXX handle other controller errors here */
643
644	/* initialize port */
645	ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000004);
646
647	/* poll for port ready */
648	for (timeout = 0; timeout < 1000; timeout++) {
649	    DELAY(1000);
650            if (ATA_INL(ctlr->r_res2, 0x1008 + offset) & 0x00040000)
651        	break;
652	}
653	if (bootverbose) {
654	    if (timeout >= 1000)
655		device_printf(ch->dev, "port initialize timeout\n");
656	    else
657		device_printf(ch->dev, "port initialize time=%dms\n", timeout);
658	}
659    }
660
661    /* Read back registers to the request struct. */
662    if ((request->flags & ATA_R_ATAPI) == 0 &&
663	((request->status & ATA_S_ERROR) ||
664	 (request->flags & (ATA_R_CONTROL | ATA_R_NEEDRESULT)))) {
665	request->u.ata.count = prb->fis[12] | ((u_int16_t)prb->fis[13] << 8);
666	request->u.ata.lba = prb->fis[4] | ((u_int64_t)prb->fis[5] << 8) |
667			     ((u_int64_t)prb->fis[6] << 16);
668	if (request->flags & ATA_R_48BIT)
669	    request->u.ata.lba |= ((u_int64_t)prb->fis[8] << 24) |
670				  ((u_int64_t)prb->fis[9] << 32) |
671				  ((u_int64_t)prb->fis[10] << 40);
672	else
673	    request->u.ata.lba |= ((u_int64_t)(prb->fis[7] & 0x0f) << 24);
674    }
675
676    /* update progress */
677    if (!(request->status & ATA_S_ERROR) && !(request->flags & ATA_R_TIMEOUT)) {
678	if (request->flags & ATA_R_READ)
679	    request->donecount = le32toh(prb->transfer_count);
680	else
681	    request->donecount = request->bytecount;
682    }
683
684    /* release SG list etc */
685    ch->dma.unload(request);
686
687    return ATA_OP_FINISHED;
688}
689
690static int
691ata_siiprb_issue_cmd(device_t dev)
692{
693    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
694    struct ata_channel *ch = device_get_softc(dev);
695    u_int64_t prb_bus = ch->dma.work_bus;
696    u_int32_t status;
697    int offset = ch->unit * 0x2000;
698    int timeout;
699
700    bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, BUS_DMASYNC_PREWRITE);
701
702    /* issue command to chip */
703    ATA_OUTL(ctlr->r_res2, 0x1c00 + offset, prb_bus);
704    ATA_OUTL(ctlr->r_res2, 0x1c04 + offset, prb_bus >> 32);
705
706    /* poll for command finished */
707    for (timeout = 0; timeout < 10000; timeout++) {
708        DELAY(1000);
709        if ((status = ATA_INL(ctlr->r_res2, 0x1008 + offset)) & 0x00010000)
710            break;
711    }
712
713    bus_dmamap_sync(ch->dma.work_tag, ch->dma.work_map, BUS_DMASYNC_POSTWRITE);
714
715    // SOS XXX ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x00010000);
716    ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x08ff08ff);
717
718    if (timeout >= 1000)
719	return EIO;
720
721    if (bootverbose)
722	device_printf(dev, "siiprb_issue_cmd time=%dms status=%08x\n",
723		      timeout, status);
724    return 0;
725}
726
727static int
728ata_siiprb_pm_read(device_t dev, int port, int reg, u_int32_t *result)
729{
730    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
731    struct ata_channel *ch = device_get_softc(dev);
732    struct ata_siiprb_command *prb = (struct ata_siiprb_command *)ch->dma.work;
733    int offset = ch->unit * 0x2000;
734
735    if (port < 0) {
736	*result = ATA_IDX_INL(ch, reg);
737	return (0);
738    }
739    if (port < ATA_PM) {
740	switch (reg) {
741	case ATA_SSTATUS:
742	    reg = 0;
743	    break;
744	case ATA_SERROR:
745	    reg = 1;
746	    break;
747	case ATA_SCONTROL:
748	    reg = 2;
749	    break;
750	default:
751	    return (EINVAL);
752	}
753    }
754    bzero(prb, sizeof(struct ata_siiprb_command));
755    prb->fis[0] = 0x27;	/* host to device */
756    prb->fis[1] = 0x8f;	/* command FIS to PM port */
757    prb->fis[2] = ATA_READ_PM;
758    prb->fis[3] = reg;
759    prb->fis[7] = port;
760    if (ata_siiprb_issue_cmd(dev)) {
761	device_printf(dev, "error reading PM port\n");
762	return EIO;
763    }
764    prb = (struct ata_siiprb_command *)
765	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
766    *result = prb->fis[12]|(prb->fis[4]<<8)|(prb->fis[5]<<16)|(prb->fis[6]<<24);
767    return 0;
768}
769
770static int
771ata_siiprb_pm_write(device_t dev, int port, int reg, u_int32_t value)
772{
773    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
774    struct ata_channel *ch = device_get_softc(dev);
775    struct ata_siiprb_command *prb = (struct ata_siiprb_command *)ch->dma.work;
776    int offset = ch->unit * 0x2000;
777
778    if (port < 0) {
779	ATA_IDX_OUTL(ch, reg, value);
780	return (0);
781    }
782    if (port < ATA_PM) {
783	switch (reg) {
784	case ATA_SSTATUS:
785	    reg = 0;
786	    break;
787	case ATA_SERROR:
788	    reg = 1;
789	    break;
790	case ATA_SCONTROL:
791	    reg = 2;
792	    break;
793	default:
794	    return (EINVAL);
795	}
796    }
797    bzero(prb, sizeof(struct ata_siiprb_command));
798    prb->fis[0] = 0x27;	/* host to device */
799    prb->fis[1] = 0x8f;	/* command FIS to PM port */
800    prb->fis[2] = ATA_WRITE_PM;
801    prb->fis[3] = reg;
802    prb->fis[7] = port;
803    prb->fis[12] = value & 0xff;
804    prb->fis[4] = (value >> 8) & 0xff;
805    prb->fis[5] = (value >> 16) & 0xff;
806    prb->fis[6] = (value >> 24) & 0xff;
807    if (ata_siiprb_issue_cmd(dev)) {
808	device_printf(dev, "error writing PM port\n");
809	return ATA_E_ABORT;
810    }
811    prb = (struct ata_siiprb_command *)
812	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
813    return prb->fis[3];
814}
815
816static u_int32_t
817ata_siiprb_softreset(device_t dev, int port)
818{
819    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
820    struct ata_channel *ch = device_get_softc(dev);
821    struct ata_siiprb_command *prb = (struct ata_siiprb_command *)ch->dma.work;
822    u_int32_t signature;
823    int offset = ch->unit * 0x2000;
824
825    /* setup the workspace for a soft reset command */
826    bzero(prb, sizeof(struct ata_siiprb_command));
827    prb->control = htole16(0x0080);
828    prb->fis[1] = port & 0x0f;
829
830    /* issue soft reset */
831    if (ata_siiprb_issue_cmd(dev))
832	return -1;
833
834    ata_udelay(150000);
835
836    /* get possible signature */
837    prb = (struct ata_siiprb_command *)
838	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
839    signature=prb->fis[12]|(prb->fis[4]<<8)|(prb->fis[5]<<16)|(prb->fis[6]<<24);
840
841    /* clear error bits/interrupt */
842    ATA_IDX_OUTL(ch, ATA_SERROR, 0xffffffff);
843
844    return signature;
845}
846
847static void
848ata_siiprb_reset(device_t dev)
849{
850    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
851    struct ata_channel *ch = device_get_softc(dev);
852    int offset = ch->unit * 0x2000;
853    u_int32_t status, signature;
854    int timeout;
855
856    /* disable interrupts */
857    ATA_OUTL(ctlr->r_res2, 0x1014 + offset, 0x000000ff);
858
859    /* reset channel HW */
860    ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000001);
861    DELAY(1000);
862    ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000001);
863    DELAY(10000);
864
865    /* poll for channel ready */
866    for (timeout = 0; timeout < 1000; timeout++) {
867        if ((status = ATA_INL(ctlr->r_res2, 0x1008 + offset)) & 0x00040000)
868            break;
869        DELAY(1000);
870    }
871
872    if (bootverbose) {
873	if (timeout >= 1000)
874	    device_printf(dev, "channel HW reset timeout\n");
875	else
876	    device_printf(dev, "channel HW reset time=%dms\n", timeout);
877    }
878
879    /* reset phy */
880    if (!ata_sata_phy_reset(dev, -1, 1)) {
881	if (bootverbose)
882	    device_printf(dev, "phy reset found no device\n");
883	ch->devices = 0;
884	goto finish;
885    }
886
887    /* issue soft reset */
888    signature = ata_siiprb_softreset(dev, ATA_PM);
889    if (bootverbose)
890	device_printf(dev, "SIGNATURE=%08x\n", signature);
891
892    /* figure out whats there */
893    switch (signature >> 16) {
894    case 0x0000:
895	ch->devices = ATA_ATA_MASTER;
896	break;
897    case 0x9669:
898	ch->devices = ATA_PORTMULTIPLIER;
899	ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x2000); /* enable PM support */
900	//SOS XXX need to clear all PM status and interrupts!!!!
901	ata_pm_identify(dev);
902	break;
903    case 0xeb14:
904	ch->devices = ATA_ATAPI_MASTER;
905	break;
906    default:
907	ch->devices = 0;
908    }
909    if (bootverbose)
910        device_printf(dev, "siiprb_reset devices=%08x\n", ch->devices);
911
912finish:
913    /* clear interrupt(s) */
914    ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x000008ff);
915
916    /* require explicit interrupt ack */
917    ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000008);
918
919    /* 64bit mode */
920    ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000400);
921
922    /* enable interrupts wanted */
923    ATA_OUTL(ctlr->r_res2, 0x1010 + offset, 0x000000ff);
924}
925
926static void
927ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
928{
929    struct ata_dmasetprd_args *args = xsc;
930    struct ata_siiprb_dma_prdentry *prd = args->dmatab;
931    int i;
932
933    if ((args->error = error))
934	return;
935
936    for (i = 0; i < nsegs; i++) {
937	prd[i].addr = htole64(segs[i].ds_addr);
938	prd[i].count = htole32(segs[i].ds_len);
939    }
940    prd[i - 1].control = htole32(ATA_DMA_EOT);
941    KASSERT(nsegs <= ATA_SIIPRB_DMA_ENTRIES,("too many DMA segment entries\n"));
942    args->nsegs = nsegs;
943}
944
945static void
946ata_siiprb_dmainit(device_t dev)
947{
948    struct ata_channel *ch = device_get_softc(dev);
949
950    /* note start and stop are not used here */
951    ch->dma.setprd = ata_siiprb_dmasetprd;
952    ch->dma.max_address = BUS_SPACE_MAXADDR;
953    ch->dma.max_iosize = (ATA_SIIPRB_DMA_ENTRIES - 1) * PAGE_SIZE;
954    ata_dmainit(dev);
955}
956
957ATA_DECLARE_DRIVER(ata_sii);
958