ata-siliconimage.c revision 188769
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 188769 2009-02-19 00:32:55Z 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_ch_detach(device_t dev);
60static int ata_sii_status(device_t dev);
61static void ata_sii_reset(device_t dev);
62static void ata_sii_setmode(device_t dev, int mode);
63static int ata_siiprb_ch_attach(device_t dev);
64static int ata_siiprb_ch_detach(device_t dev);
65static int ata_siiprb_status(device_t dev);
66static int ata_siiprb_begin_transaction(struct ata_request *request);
67static int ata_siiprb_end_transaction(struct ata_request *request);
68static int ata_siiprb_pm_read(device_t dev, int port, int reg, u_int32_t *result);
69static int ata_siiprb_pm_write(device_t dev, int port, int reg, u_int32_t result);
70static u_int32_t ata_siiprb_softreset(device_t dev, int port);
71static void ata_siiprb_reset(device_t dev);
72static void ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
73static void ata_siiprb_dmainit(device_t dev);
74
75/* misc defines */
76#define SII_MEMIO	1
77#define SII_PRBIO	2
78#define SII_INTR	0x01
79#define SII_SETCLK	0x02
80#define SII_BUG		0x04
81#define SII_4CH		0x08
82
83
84/*
85 * Silicon Image Inc. (SiI) (former CMD) chipset support functions
86 */
87static int
88ata_sii_probe(device_t dev)
89{
90    struct ata_pci_controller *ctlr = device_get_softc(dev);
91    static struct ata_chip_id ids[] =
92    {{ ATA_SII3114,   0x00, SII_MEMIO, SII_4CH,    ATA_SA150, "3114" },
93     { ATA_SII3512,   0x02, SII_MEMIO, 0,          ATA_SA150, "3512" },
94     { ATA_SII3112,   0x02, SII_MEMIO, 0,          ATA_SA150, "3112" },
95     { ATA_SII3112_1, 0x02, SII_MEMIO, 0,          ATA_SA150, "3112" },
96     { ATA_SII3512,   0x00, SII_MEMIO, SII_BUG,    ATA_SA150, "3512" },
97     { ATA_SII3112,   0x00, SII_MEMIO, SII_BUG,    ATA_SA150, "3112" },
98     { ATA_SII3112_1, 0x00, SII_MEMIO, SII_BUG,    ATA_SA150, "3112" },
99     { ATA_SII3124,   0x00, SII_PRBIO, SII_4CH,    ATA_SA300, "3124" },
100     { ATA_SII3132,   0x00, SII_PRBIO, 0,          ATA_SA300, "3132" },
101     { ATA_SII3132_1, 0x00, SII_PRBIO, 0,          ATA_SA300, "3132" },
102     { ATA_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 0;
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	ctlr->ch_attach = ata_siiprb_ch_attach;
144	ctlr->ch_detach = ata_siiprb_ch_detach;
145	ctlr->reset = ata_siiprb_reset;
146	ctlr->setmode = ata_sata_setmode;
147	ctlr->channels = (ctlr->chip->cfg2 == SII_4CH) ? 4 : 2;
148
149	/* reset controller */
150	ATA_OUTL(ctlr->r_res1, 0x0040, 0x80000000);
151	DELAY(10000);
152	ATA_OUTL(ctlr->r_res1, 0x0040, 0x0000000f);
153
154	/* enable PCI interrupt */
155	pci_write_config(dev, PCIR_COMMAND,
156			 pci_read_config(dev, PCIR_COMMAND, 2) & ~0x0400, 2);
157	break;
158
159    case SII_MEMIO:
160	ctlr->r_type2 = SYS_RES_MEMORY;
161	ctlr->r_rid2 = PCIR_BAR(5);
162	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
163						    &ctlr->r_rid2, RF_ACTIVE))){
164	    if (ctlr->chip->chipid != ATA_SII0680 ||
165			    (pci_read_config(dev, 0x8a, 1) & 1))
166		return ENXIO;
167	}
168
169	if (ctlr->chip->cfg2 & SII_SETCLK) {
170	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
171		pci_write_config(dev, 0x8a,
172				 (pci_read_config(dev, 0x8a, 1) & 0xcf)|0x10,1);
173	    if ((pci_read_config(dev, 0x8a, 1) & 0x30) != 0x10)
174		device_printf(dev, "%s could not set ATA133 clock\n",
175			      ctlr->chip->text);
176	}
177
178	/* if we have 4 channels enable the second set */
179	if (ctlr->chip->cfg2 & SII_4CH) {
180	    ATA_OUTL(ctlr->r_res2, 0x0200, 0x00000002);
181	    ctlr->channels = 4;
182	}
183
184	/* dont block interrupts from any channel */
185	pci_write_config(dev, 0x48,
186			 (pci_read_config(dev, 0x48, 4) & ~0x03c00000), 4);
187
188	/* enable PCI interrupt as BIOS might not */
189	pci_write_config(dev, 0x8a, (pci_read_config(dev, 0x8a, 1) & 0x3f), 1);
190
191	if (ctlr->r_res2) {
192	    ctlr->ch_attach = ata_sii_ch_attach;
193	    ctlr->ch_detach = ata_sii_ch_detach;
194	}
195
196	if (ctlr->chip->max_dma >= ATA_SA150) {
197	    ctlr->reset = ata_sii_reset;
198	    ctlr->setmode = ata_sata_setmode;
199	}
200	else
201	    ctlr->setmode = ata_sii_setmode;
202	break;
203
204    default:
205	if ((pci_read_config(dev, 0x51, 1) & 0x08) != 0x08) {
206	    device_printf(dev, "HW has secondary channel disabled\n");
207	    ctlr->channels = 1;
208	}
209
210	/* enable interrupt as BIOS might not */
211	pci_write_config(dev, 0x71, 0x01, 1);
212
213	ctlr->ch_attach = ata_cmd_ch_attach;
214	ctlr->ch_detach = ata_pci_ch_detach;
215	ctlr->setmode = ata_cmd_setmode;
216	break;
217    }
218    return 0;
219}
220
221static int
222ata_cmd_ch_attach(device_t dev)
223{
224    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
225    struct ata_channel *ch = device_get_softc(dev);
226
227    /* setup the usual register normal pci style */
228    if (ata_pci_ch_attach(dev))
229	return ENXIO;
230
231    if (ctlr->chip->cfg2 & SII_INTR)
232	ch->hw.status = ata_cmd_status;
233
234    return 0;
235}
236
237static int
238ata_cmd_status(device_t dev)
239{
240    struct ata_channel *ch = device_get_softc(dev);
241    u_int8_t reg71;
242
243    if (((reg71 = pci_read_config(device_get_parent(dev), 0x71, 1)) &
244	 (ch->unit ? 0x08 : 0x04))) {
245	pci_write_config(device_get_parent(dev), 0x71,
246			 reg71 & ~(ch->unit ? 0x04 : 0x08), 1);
247	return ata_pci_status(dev);
248    }
249    return 0;
250}
251
252static void
253ata_cmd_setmode(device_t dev, int mode)
254{
255    device_t gparent = GRANDPARENT(dev);
256    struct ata_pci_controller *ctlr = device_get_softc(gparent);
257    struct ata_channel *ch = device_get_softc(device_get_parent(dev));
258    struct ata_device *atadev = device_get_softc(dev);
259    int devno = (ch->unit << 1) + atadev->unit;
260    int error;
261
262    mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
263
264    mode = ata_check_80pin(dev, mode);
265
266    error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
267
268    if (bootverbose)
269	device_printf(dev, "%ssetting %s on %s chip\n",
270		      (error) ? "FAILURE " : "",
271		      ata_mode2str(mode), ctlr->chip->text);
272    if (!error) {
273	int treg = 0x54 + ((devno < 3) ? (devno << 1) : 7);
274	int ureg = ch->unit ? 0x7b : 0x73;
275
276	if (mode >= ATA_UDMA0) {
277	    int udmatimings[][2] = { { 0x31,  0xc2 }, { 0x21,  0x82 },
278				     { 0x11,  0x42 }, { 0x25,  0x8a },
279				     { 0x15,  0x4a }, { 0x05,  0x0a } };
280
281	    u_int8_t umode = pci_read_config(gparent, ureg, 1);
282
283	    umode &= ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca);
284	    umode |= udmatimings[mode & ATA_MODE_MASK][atadev->unit];
285	    pci_write_config(gparent, ureg, umode, 1);
286	}
287	else if (mode >= ATA_WDMA0) {
288	    int dmatimings[] = { 0x87, 0x32, 0x3f };
289
290	    pci_write_config(gparent, treg, dmatimings[mode & ATA_MODE_MASK],1);
291	    pci_write_config(gparent, ureg,
292			     pci_read_config(gparent, ureg, 1) &
293			     ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca), 1);
294	}
295	else {
296	   int piotimings[] = { 0xa9, 0x57, 0x44, 0x32, 0x3f };
297	    pci_write_config(gparent, treg,
298			     piotimings[(mode & ATA_MODE_MASK) - ATA_PIO0], 1);
299	    pci_write_config(gparent, ureg,
300			     pci_read_config(gparent, ureg, 1) &
301			     ~(atadev->unit == ATA_MASTER ? 0x35 : 0xca), 1);
302	}
303	atadev->mode = mode;
304    }
305}
306
307static int
308ata_sii_ch_attach(device_t dev)
309{
310    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
311    struct ata_channel *ch = device_get_softc(dev);
312    int unit01 = (ch->unit & 1), unit10 = (ch->unit & 2);
313    int i;
314
315    ata_pci_dmainit(dev);
316
317    for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
318	ch->r_io[i].res = ctlr->r_res2;
319	ch->r_io[i].offset = 0x80 + i + (unit01 << 6) + (unit10 << 8);
320    }
321    ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
322    ch->r_io[ATA_CONTROL].offset = 0x8a + (unit01 << 6) + (unit10 << 8);
323    ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
324    ata_default_registers(dev);
325
326    ch->r_io[ATA_BMCMD_PORT].res = ctlr->r_res2;
327    ch->r_io[ATA_BMCMD_PORT].offset = 0x00 + (unit01 << 3) + (unit10 << 8);
328    ch->r_io[ATA_BMSTAT_PORT].res = ctlr->r_res2;
329    ch->r_io[ATA_BMSTAT_PORT].offset = 0x02 + (unit01 << 3) + (unit10 << 8);
330    ch->r_io[ATA_BMDTP_PORT].res = ctlr->r_res2;
331    ch->r_io[ATA_BMDTP_PORT].offset = 0x04 + (unit01 << 3) + (unit10 << 8);
332
333    if (ctlr->chip->max_dma >= ATA_SA150) {
334	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
335	ch->r_io[ATA_SSTATUS].offset = 0x104 + (unit01 << 7) + (unit10 << 8);
336	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
337	ch->r_io[ATA_SERROR].offset = 0x108 + (unit01 << 7) + (unit10 << 8);
338	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
339	ch->r_io[ATA_SCONTROL].offset = 0x100 + (unit01 << 7) + (unit10 << 8);
340	ch->flags |= ATA_NO_SLAVE;
341
342	/* enable PHY state change interrupt */
343	ATA_OUTL(ctlr->r_res2, 0x148 + (unit01 << 7) + (unit10 << 8),(1 << 16));
344    }
345
346    if (ctlr->chip->cfg2 & SII_BUG) {
347	/* work around errata in early chips */
348	ch->dma.boundary = 8192;
349	ch->dma.segsize = 15 * DEV_BSIZE;
350    }
351
352    ata_pci_hw(dev);
353    ch->hw.status = ata_sii_status;
354    return 0;
355}
356
357static int
358ata_sii_ch_detach(device_t dev)
359{
360
361    ata_pci_dmafini(dev);
362    return (0);
363}
364
365static int
366ata_sii_status(device_t dev)
367{
368    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
369    struct ata_channel *ch = device_get_softc(dev);
370    int offset0 = ((ch->unit & 1) << 3) + ((ch->unit & 2) << 8);
371    int offset1 = ((ch->unit & 1) << 6) + ((ch->unit & 2) << 8);
372
373    /* do we have any PHY events ? */
374    if (ctlr->chip->max_dma >= ATA_SA150 &&
375	(ATA_INL(ctlr->r_res2, 0x10 + offset0) & 0x00000010))
376	ata_sata_phy_check_events(dev);
377
378    if (ATA_INL(ctlr->r_res2, 0xa0 + offset1) & 0x00000800)
379	return ata_pci_status(dev);
380    else
381	return 0;
382}
383
384static void
385ata_sii_reset(device_t dev)
386{
387    if (ata_sata_phy_reset(dev))
388	ata_generic_reset(dev);
389}
390
391static void
392ata_sii_setmode(device_t dev, int mode)
393{
394    device_t gparent = GRANDPARENT(dev);
395    struct ata_pci_controller *ctlr = device_get_softc(gparent);
396    struct ata_channel *ch = device_get_softc(device_get_parent(dev));
397    struct ata_device *atadev = device_get_softc(dev);
398    int rego = (ch->unit << 4) + (atadev->unit << 1);
399    int mreg = ch->unit ? 0x84 : 0x80;
400    int mask = 0x03 << (atadev->unit << 2);
401    int mval = pci_read_config(gparent, mreg, 1) & ~mask;
402    int error;
403
404    mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
405
406    if (ctlr->chip->cfg2 & SII_SETCLK) {
407	if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x79, 1) &
408				 (ch->unit ? 0x02 : 0x01))) {
409	    ata_print_cable(dev, "controller");
410	    mode = ATA_UDMA2;
411	}
412    }
413    else
414	mode = ata_check_80pin(dev, mode);
415
416    error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
417
418    if (bootverbose)
419	device_printf(dev, "%ssetting %s on %s chip\n",
420		      (error) ? "FAILURE " : "",
421		      ata_mode2str(mode), ctlr->chip->text);
422    if (error)
423	return;
424
425    if (mode >= ATA_UDMA0) {
426	u_int8_t udmatimings[] = { 0xf, 0xb, 0x7, 0x5, 0x3, 0x2, 0x1 };
427	u_int8_t ureg = 0xac + rego;
428
429	pci_write_config(gparent, mreg,
430			 mval | (0x03 << (atadev->unit << 2)), 1);
431	pci_write_config(gparent, ureg,
432			 (pci_read_config(gparent, ureg, 1) & ~0x3f) |
433			 udmatimings[mode & ATA_MODE_MASK], 1);
434
435    }
436    else if (mode >= ATA_WDMA0) {
437	u_int8_t dreg = 0xa8 + rego;
438	u_int16_t dmatimings[] = { 0x2208, 0x10c2, 0x10c1 };
439
440	pci_write_config(gparent, mreg,
441			 mval | (0x02 << (atadev->unit << 2)), 1);
442	pci_write_config(gparent, dreg, dmatimings[mode & ATA_MODE_MASK], 2);
443
444    }
445    else {
446	u_int8_t preg = 0xa4 + rego;
447	u_int16_t piotimings[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
448
449	pci_write_config(gparent, mreg,
450			 mval | (0x01 << (atadev->unit << 2)), 1);
451	pci_write_config(gparent, preg, piotimings[mode & ATA_MODE_MASK], 2);
452    }
453    atadev->mode = mode;
454}
455
456
457struct ata_siiprb_dma_prdentry {
458    u_int64_t addr;
459    u_int32_t count;
460    u_int32_t control;
461} __packed;
462
463#define ATA_SIIPRB_DMA_ENTRIES		125
464struct ata_siiprb_ata_command {
465    struct ata_siiprb_dma_prdentry prd[ATA_SIIPRB_DMA_ENTRIES];
466} __packed;
467
468struct ata_siiprb_atapi_command {
469    u_int8_t ccb[16];
470    struct ata_siiprb_dma_prdentry prd[ATA_SIIPRB_DMA_ENTRIES];
471} __packed;
472
473struct ata_siiprb_command {
474    u_int16_t control;
475    u_int16_t protocol_override;
476    u_int32_t transfer_count;
477    u_int8_t fis[24];
478    union {
479	struct ata_siiprb_ata_command ata;
480	struct ata_siiprb_atapi_command atapi;
481    } u;
482} __packed;
483
484static int
485ata_siiprb_ch_attach(device_t dev)
486{
487    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
488    struct ata_channel *ch = device_get_softc(dev);
489    int offset = ch->unit * 0x2000;
490
491    ata_siiprb_dmainit(dev);
492
493    /* set the SATA resources */
494    ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
495    ch->r_io[ATA_SSTATUS].offset = 0x1f04 + offset;
496    ch->r_io[ATA_SERROR].res = ctlr->r_res2;
497    ch->r_io[ATA_SERROR].offset = 0x1f08 + offset;
498    ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
499    ch->r_io[ATA_SCONTROL].offset = 0x1f00 + offset;
500    ch->r_io[ATA_SACTIVE].res = ctlr->r_res2;
501    ch->r_io[ATA_SACTIVE].offset = 0x1f0c + offset;
502
503    ch->hw.status = ata_siiprb_status;
504    ch->hw.begin_transaction = ata_siiprb_begin_transaction;
505    ch->hw.end_transaction = ata_siiprb_end_transaction;
506    ch->hw.command = NULL;	/* not used here */
507    ch->hw.softreset = ata_siiprb_softreset;
508    ch->hw.pm_read = ata_siiprb_pm_read;
509    ch->hw.pm_write = ata_siiprb_pm_write;
510
511    return 0;
512}
513
514static int
515ata_siiprb_ch_detach(device_t dev)
516{
517
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);
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(GRANDPARENT(request->dev));
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 *)
563	(ch->dma.work + (sizeof(struct ata_siiprb_command) * request->tag));
564
565    /* clear the prb structure */
566    bzero(prb, sizeof(struct ata_siiprb_command));
567
568    /* setup the FIS for this request */
569    if (!ata_request2fis_h2d(request, &prb->fis[0])) {
570        device_printf(request->dev, "setting up SATA FIS failed\n");
571        request->result = EIO;
572        return ATA_OP_FINISHED;
573    }
574
575    /* setup transfer type */
576    if (request->flags & ATA_R_ATAPI) {
577        struct ata_device *atadev = device_get_softc(request->dev);
578
579	bcopy(request->u.atapi.ccb, prb->u.atapi.ccb, 16);
580	if ((atadev->param.config & ATA_PROTO_MASK) == ATA_PROTO_ATAPI_12)
581	    ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000020);
582	else
583	    ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000020);
584	if (request->flags & ATA_R_READ)
585	    prb->control = htole16(0x0010);
586	if (request->flags & ATA_R_WRITE)
587	    prb->control = htole16(0x0020);
588	prd = &prb->u.atapi.prd[0];
589    }
590    else
591	prd = &prb->u.ata.prd[0];
592
593    /* if request moves data setup and load SG list */
594    if (request->flags & (ATA_R_READ | ATA_R_WRITE)) {
595	if (ch->dma.load(request, prd, NULL)) {
596	    device_printf(request->dev, "setting up DMA failed\n");
597	    request->result = EIO;
598	    return ATA_OP_FINISHED;
599	}
600    }
601
602    /* activate the prb */
603    prb_bus = ch->dma.work_bus +
604	      (sizeof(struct ata_siiprb_command) * request->tag);
605    ATA_OUTL(ctlr->r_res2,
606	     0x1c00 + offset + (request->tag * sizeof(u_int64_t)), prb_bus);
607    ATA_OUTL(ctlr->r_res2,
608	     0x1c04 + offset + (request->tag * sizeof(u_int64_t)), prb_bus>>32);
609
610    /* start the timeout */
611    callout_reset(&request->callout, request->timeout * hz,
612                  (timeout_t*)ata_timeout, request);
613    return ATA_OP_CONTINUES;
614}
615
616static int
617ata_siiprb_end_transaction(struct ata_request *request)
618{
619    struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
620    struct ata_channel *ch = device_get_softc(request->parent);
621    struct ata_siiprb_command *prb;
622    int offset = ch->unit * 0x2000;
623    int error, timeout;
624
625    /* kill the timeout */
626    callout_stop(&request->callout);
627
628    prb = (struct ata_siiprb_command *)
629	((u_int8_t *)rman_get_virtual(ctlr->r_res2)+(request->tag << 7)+offset);
630
631    /* any controller errors flagged ? */
632    if ((error = ATA_INL(ctlr->r_res2, 0x1024 + offset))) {
633	if (bootverbose)
634	    printf("ata_siiprb_end_transaction %s error=%08x\n",
635		   ata_cmd2str(request), error);
636
637	/* if device error status get details */
638	if (error == 1 || error == 2) {
639	    request->status = prb->fis[2];
640	    if (request->status & ATA_S_ERROR)
641		request->error = prb->fis[3];
642	}
643
644 	/* SOS XXX handle other controller errors here */
645
646	/* initialize port */
647	ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000004);
648
649	/* poll for port ready */
650	for (timeout = 0; timeout < 1000; timeout++) {
651	    DELAY(1000);
652            if (ATA_INL(ctlr->r_res2, 0x1008 + offset) & 0x00040000)
653        	break;
654	}
655	if (bootverbose) {
656	    if (timeout >= 1000)
657		device_printf(ch->dev, "port initialize timeout\n");
658	    else
659		device_printf(ch->dev, "port initialize time=%dms\n", timeout);
660	}
661    }
662
663    /* on control commands read back registers to the request struct */
664    if (request->flags & ATA_R_CONTROL) {
665        struct ata_device *atadev = device_get_softc(request->dev);
666
667	request->u.ata.count = prb->fis[12] | ((u_int16_t)prb->fis[13] << 8);
668	request->u.ata.lba = prb->fis[4] | ((u_int64_t)prb->fis[5] << 8) |
669			     ((u_int64_t)prb->fis[6] << 16);
670	if (atadev->flags & ATA_D_48BIT_ACTIVE)
671	    request->u.ata.lba |= ((u_int64_t)prb->fis[8] << 24) |
672				  ((u_int64_t)prb->fis[9] << 32) |
673				  ((u_int64_t)prb->fis[10] << 40);
674	else
675	    request->u.ata.lba |= ((u_int64_t)(prb->fis[7] & 0x0f) << 24);
676    }
677
678    /* update progress */
679    if (!(request->status & ATA_S_ERROR) && !(request->flags & ATA_R_TIMEOUT)) {
680	if (request->flags & ATA_R_READ)
681	    request->donecount = prb->transfer_count;
682	else
683	    request->donecount = request->bytecount;
684    }
685
686    /* release SG list etc */
687    ch->dma.unload(request);
688
689    return ATA_OP_FINISHED;
690}
691
692static int
693ata_siiprb_issue_cmd(device_t dev)
694{
695    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
696    struct ata_channel *ch = device_get_softc(dev);
697    u_int64_t prb_bus = ch->dma.work_bus;
698    u_int32_t status;
699    int offset = ch->unit * 0x2000;
700    int timeout;
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    // 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    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_READ_PM;
736    prb->fis[3] = reg;
737    prb->fis[7] = port;
738    if (ata_siiprb_issue_cmd(dev)) {
739	device_printf(dev, "error reading PM port\n");
740	return EIO;
741    }
742    prb = (struct ata_siiprb_command *)
743	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
744    *result = prb->fis[12]|(prb->fis[4]<<8)|(prb->fis[5]<<16)|(prb->fis[6]<<24);
745    return 0;
746}
747
748static int
749ata_siiprb_pm_write(device_t dev, int port, int reg, u_int32_t value)
750{
751    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
752    struct ata_channel *ch = device_get_softc(dev);
753    struct ata_siiprb_command *prb = (struct ata_siiprb_command *)ch->dma.work;
754    int offset = ch->unit * 0x2000;
755
756    bzero(prb, sizeof(struct ata_siiprb_command));
757    prb->fis[0] = 0x27;	/* host to device */
758    prb->fis[1] = 0x8f;	/* command FIS to PM port */
759    prb->fis[2] = ATA_WRITE_PM;
760    prb->fis[3] = reg;
761    prb->fis[7] = port;
762    prb->fis[12] = value & 0xff;
763    prb->fis[4] = (value >> 8) & 0xff;;
764    prb->fis[5] = (value >> 16) & 0xff;;
765    prb->fis[6] = (value >> 24) & 0xff;;
766    if (ata_siiprb_issue_cmd(dev)) {
767	device_printf(dev, "error writing PM port\n");
768	return ATA_E_ABORT;
769    }
770    prb = (struct ata_siiprb_command *)
771	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
772    return prb->fis[3];
773}
774
775static u_int32_t
776ata_siiprb_softreset(device_t dev, int port)
777{
778    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
779    struct ata_channel *ch = device_get_softc(dev);
780    struct ata_siiprb_command *prb = (struct ata_siiprb_command *)ch->dma.work;
781    u_int32_t signature;
782    int offset = ch->unit * 0x2000;
783
784    /* setup the workspace for a soft reset command */
785    bzero(prb, sizeof(struct ata_siiprb_command));
786    prb->control = htole16(0x0080);
787    prb->fis[1] = port & 0x0f;
788
789    /* issue soft reset */
790    if (ata_siiprb_issue_cmd(dev))
791	return -1;
792
793    ata_udelay(150000);
794
795    /* get possible signature */
796    prb = (struct ata_siiprb_command *)
797	((u_int8_t *)rman_get_virtual(ctlr->r_res2) + offset);
798    signature=prb->fis[12]|(prb->fis[4]<<8)|(prb->fis[5]<<16)|(prb->fis[6]<<24);
799
800    /* clear error bits/interrupt */
801    ATA_IDX_OUTL(ch, ATA_SERROR, 0xffffffff);
802
803    return signature;
804}
805
806static void
807ata_siiprb_reset(device_t dev)
808{
809    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
810    struct ata_channel *ch = device_get_softc(dev);
811    int offset = ch->unit * 0x2000;
812    u_int32_t status, signature;
813    int timeout;
814
815    /* disable interrupts */
816    ATA_OUTL(ctlr->r_res2, 0x1014 + offset, 0x000000ff);
817
818    /* reset channel HW */
819    ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000001);
820    DELAY(1000);
821    ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000001);
822    DELAY(10000);
823
824    /* poll for channel ready */
825    for (timeout = 0; timeout < 1000; timeout++) {
826        if ((status = ATA_INL(ctlr->r_res2, 0x1008 + offset)) & 0x00040000)
827            break;
828        DELAY(1000);
829    }
830
831    if (bootverbose) {
832	if (timeout >= 1000)
833	    device_printf(dev, "channel HW reset timeout\n");
834	else
835	    device_printf(dev, "channel HW reset time=%dms\n", timeout);
836    }
837
838    /* reset phy */
839    if (!ata_sata_phy_reset(dev)) {
840	if (bootverbose)
841	    device_printf(dev, "phy reset found no device\n");
842	ch->devices = 0;
843	goto finish;
844    }
845
846    /* issue soft reset */
847    signature = ata_siiprb_softreset(dev, ATA_PM);
848    if (bootverbose)
849	device_printf(dev, "SIGNATURE=%08x\n", signature);
850
851    /* figure out whats there */
852    switch (signature) {
853    case 0x00000101:
854	ch->devices = ATA_ATA_MASTER;
855	break;
856    case 0x96690101:
857	ch->devices = ATA_PORTMULTIPLIER;
858	ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x2000); /* enable PM support */
859	//SOS XXX need to clear all PM status and interrupts!!!!
860	ata_pm_identify(dev);
861	break;
862    case 0xeb140101:
863	ch->devices = ATA_ATAPI_MASTER;
864	break;
865    default:
866	ch->devices = 0;
867    }
868    if (bootverbose)
869        device_printf(dev, "siiprb_reset devices=%08x\n", ch->devices);
870
871finish:
872    /* clear interrupt(s) */
873    ATA_OUTL(ctlr->r_res2, 0x1008 + offset, 0x000008ff);
874
875    /* require explicit interrupt ack */
876    ATA_OUTL(ctlr->r_res2, 0x1000 + offset, 0x00000008);
877
878    /* 64bit mode */
879    ATA_OUTL(ctlr->r_res2, 0x1004 + offset, 0x00000400);
880
881    /* enable interrupts wanted */
882    ATA_OUTL(ctlr->r_res2, 0x1010 + offset, 0x000000ff);
883}
884
885static void
886ata_siiprb_dmasetprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
887{
888    struct ata_dmasetprd_args *args = xsc;
889    struct ata_siiprb_dma_prdentry *prd = args->dmatab;
890    int i;
891
892    if ((args->error = error))
893	return;
894
895    for (i = 0; i < nsegs; i++) {
896	prd[i].addr = htole64(segs[i].ds_addr);
897	prd[i].count = htole32(segs[i].ds_len);
898    }
899    prd[i - 1].control = htole32(ATA_DMA_EOT);
900    KASSERT(nsegs <= ATA_SIIPRB_DMA_ENTRIES,("too many DMA segment entries\n"));
901    args->nsegs = nsegs;
902}
903
904static void
905ata_siiprb_dmainit(device_t dev)
906{
907    struct ata_channel *ch = device_get_softc(dev);
908
909    ata_dmainit(dev);
910    /* note start and stop are not used here */
911    ch->dma.setprd = ata_siiprb_dmasetprd;
912    ch->dma.max_address = BUS_SPACE_MAXADDR;
913}
914
915ATA_DECLARE_DRIVER(ata_sii);
916