1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1998 - 2008 S��ren Schmidt <sos@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer,
12 *    without modification, immediately at the beginning of the file.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD$");
31
32#include <sys/param.h>
33#include <sys/module.h>
34#include <sys/systm.h>
35#include <sys/kernel.h>
36#include <sys/ata.h>
37#include <sys/bus.h>
38#include <sys/endian.h>
39#include <sys/malloc.h>
40#include <sys/lock.h>
41#include <sys/mutex.h>
42#include <sys/sema.h>
43#include <sys/taskqueue.h>
44#include <vm/uma.h>
45#include <machine/stdarg.h>
46#include <machine/resource.h>
47#include <machine/bus.h>
48#include <sys/rman.h>
49#include <dev/pci/pcivar.h>
50#include <dev/pci/pcireg.h>
51#include <dev/ata/ata-all.h>
52#include <dev/ata/ata-pci.h>
53#include <ata_if.h>
54
55/* local prototypes */
56static int ata_promise_chipinit(device_t dev);
57static int ata_promise_ch_attach(device_t dev);
58static int ata_promise_status(device_t dev);
59static int ata_promise_dmastart(struct ata_request *request);
60static int ata_promise_dmastop(struct ata_request *request);
61static void ata_promise_dmareset(device_t dev);
62static int ata_promise_setmode(device_t dev, int target, int mode);
63static int ata_promise_tx2_ch_attach(device_t dev);
64static int ata_promise_tx2_status(device_t dev);
65static int ata_promise_mio_ch_attach(device_t dev);
66static int ata_promise_mio_ch_detach(device_t dev);
67static void ata_promise_mio_intr(void *data);
68static int ata_promise_mio_status(device_t dev);
69static int ata_promise_mio_command(struct ata_request *request);
70static void ata_promise_mio_reset(device_t dev);
71static int ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result);
72static int ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t result);
73static u_int32_t ata_promise_mio_softreset(device_t dev, int port);
74static void ata_promise_mio_dmainit(device_t dev);
75static void ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
76static int ata_promise_mio_setmode(device_t dev, int target, int mode);
77static int ata_promise_mio_getrev(device_t dev, int target);
78static void ata_promise_sx4_intr(void *data);
79static int ata_promise_sx4_command(struct ata_request *request);
80static int ata_promise_apkt(u_int8_t *bytep, struct ata_request *request);
81static void ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt);
82static void ata_promise_next_hpkt(struct ata_pci_controller *ctlr);
83
84/* misc defines */
85#define PR_OLD		0
86#define PR_NEW		1
87#define PR_TX		2
88#define PR_MIO		3
89#define PR_TX4		0x01
90#define PR_SX4X		0x02
91#define PR_SX6K		0x04
92#define PR_PATA		0x08
93#define PR_CMBO		0x10
94#define PR_CMBO2	0x20
95#define PR_SATA		0x40
96#define PR_SATA2	0x80
97
98/*
99 * Promise chipset support functions
100 */
101#define ATA_PDC_APKT_OFFSET     0x00000010
102#define ATA_PDC_HPKT_OFFSET     0x00000040
103#define ATA_PDC_ASG_OFFSET      0x00000080
104#define ATA_PDC_LSG_OFFSET      0x000000c0
105#define ATA_PDC_HSG_OFFSET      0x00000100
106#define ATA_PDC_CHN_OFFSET      0x00000400
107#define ATA_PDC_BUF_BASE        0x00400000
108#define ATA_PDC_BUF_OFFSET      0x00100000
109#define ATA_PDC_MAX_HPKT        8
110#define ATA_PDC_WRITE_REG       0x00
111#define ATA_PDC_WRITE_CTL       0x0e
112#define ATA_PDC_WRITE_END       0x08
113#define ATA_PDC_WAIT_NBUSY      0x10
114#define ATA_PDC_WAIT_READY      0x18
115#define ATA_PDC_1B              0x20
116#define ATA_PDC_2B              0x40
117
118struct host_packet {
119    u_int32_t                   addr;
120    TAILQ_ENTRY(host_packet)    chain;
121};
122
123struct ata_promise_sx4 {
124    struct mtx                  mtx;
125    TAILQ_HEAD(, host_packet)   queue;
126    int                         busy;
127};
128
129static int
130ata_promise_probe(device_t dev)
131{
132    struct ata_pci_controller *ctlr = device_get_softc(dev);
133    const struct ata_chip_id *idx;
134    static const struct ata_chip_id ids[] =
135    {{ ATA_PDC20246,  0, PR_OLD, 0x00,     ATA_UDMA2, "PDC20246" },
136     { ATA_PDC20262,  0, PR_NEW, 0x00,     ATA_UDMA4, "PDC20262" },
137     { ATA_PDC20263,  0, PR_NEW, 0x00,     ATA_UDMA4, "PDC20263" },
138     { ATA_PDC20265,  0, PR_NEW, 0x00,     ATA_UDMA5, "PDC20265" },
139     { ATA_PDC20267,  0, PR_NEW, 0x00,     ATA_UDMA5, "PDC20267" },
140     { ATA_PDC20268,  0, PR_TX,  PR_TX4,   ATA_UDMA5, "PDC20268" },
141     { ATA_PDC20269,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20269" },
142     { ATA_PDC20270,  0, PR_TX,  PR_TX4,   ATA_UDMA5, "PDC20270" },
143     { ATA_PDC20271,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20271" },
144     { ATA_PDC20275,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20275" },
145     { ATA_PDC20276,  0, PR_TX,  PR_SX6K,  ATA_UDMA6, "PDC20276" },
146     { ATA_PDC20277,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20277" },
147     { ATA_PDC20318,  0, PR_MIO, PR_SATA,  ATA_SA150, "PDC20318" },
148     { ATA_PDC20319,  0, PR_MIO, PR_SATA,  ATA_SA150, "PDC20319" },
149     { ATA_PDC20371,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20371" },
150     { ATA_PDC20375,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20375" },
151     { ATA_PDC20376,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20376" },
152     { ATA_PDC20377,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20377" },
153     { ATA_PDC20378,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20378" },
154     { ATA_PDC20379,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20379" },
155     { ATA_PDC20571,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20571" },
156     { ATA_PDC20575,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20575" },
157     { ATA_PDC20579,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20579" },
158     { ATA_PDC20771,  0, PR_MIO, PR_CMBO2, ATA_SA300, "PDC20771" },
159     { ATA_PDC40775,  0, PR_MIO, PR_CMBO2, ATA_SA300, "PDC40775" },
160     { ATA_PDC20617,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20617" },
161     { ATA_PDC20618,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20618" },
162     { ATA_PDC20619,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20619" },
163     { ATA_PDC20620,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20620" },
164     { ATA_PDC20621,  0, PR_MIO, PR_SX4X,  ATA_UDMA5, "PDC20621" },
165     { ATA_PDC20622,  0, PR_MIO, PR_SX4X,  ATA_SA150, "PDC20622" },
166     { ATA_PDC40518,  0, PR_MIO, PR_SATA2, ATA_SA150, "PDC40518" },
167     { ATA_PDC40519,  0, PR_MIO, PR_SATA2, ATA_SA150, "PDC40519" },
168     { ATA_PDC40718,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40718" },
169     { ATA_PDC40719,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40719" },
170     { ATA_PDC40779,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40779" },
171     { 0, 0, 0, 0, 0, 0}};
172    char buffer[64];
173    uintptr_t devid = 0;
174
175    if (pci_get_vendor(dev) != ATA_PROMISE_ID)
176	return ENXIO;
177
178    if (!(idx = ata_match_chip(dev, ids)))
179	return ENXIO;
180
181    /* if we are on a SuperTrak SX6000 dont attach */
182    if ((idx->cfg2 & PR_SX6K) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
183	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
184		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
185	devid == ATA_I960RM)
186	return ENXIO;
187
188    strcpy(buffer, "Promise ");
189    strcat(buffer, idx->text);
190
191    /* if we are on a FastTrak TX4, adjust the interrupt resource */
192    if ((idx->cfg2 & PR_TX4) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
193	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
194		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
195	((devid == ATA_DEC_21150) || (devid == ATA_DEC_21150_1))) {
196	static rman_res_t start = 0, end = 0;
197
198	if (pci_get_slot(dev) == 1) {
199	    bus_get_resource(dev, SYS_RES_IRQ, 0, &start, &end);
200	    strcat(buffer, " (channel 0+1)");
201	}
202	else if (pci_get_slot(dev) == 2 && start && end) {
203	    bus_set_resource(dev, SYS_RES_IRQ, 0, start, end);
204	    strcat(buffer, " (channel 2+3)");
205	}
206	else {
207	    start = end = 0;
208	}
209    }
210    sprintf(buffer, "%s %s controller", buffer, ata_mode2str(idx->max_dma));
211    device_set_desc_copy(dev, buffer);
212    ctlr->chip = idx;
213    ctlr->chipinit = ata_promise_chipinit;
214    return (BUS_PROBE_LOW_PRIORITY);
215}
216
217static int
218ata_promise_chipinit(device_t dev)
219{
220    struct ata_pci_controller *ctlr = device_get_softc(dev);
221    int stat_reg;
222
223    if (ata_setup_interrupt(dev, ata_generic_intr))
224	return ENXIO;
225
226    switch  (ctlr->chip->cfg1) {
227    case PR_NEW:
228	/* setup clocks */
229	ATA_OUTB(ctlr->r_res1, 0x11, ATA_INB(ctlr->r_res1, 0x11) | 0x0a);
230	/* FALLTHROUGH */
231
232    case PR_OLD:
233	/* enable burst mode */
234	ATA_OUTB(ctlr->r_res1, 0x1f, ATA_INB(ctlr->r_res1, 0x1f) | 0x01);
235	ctlr->ch_attach = ata_promise_ch_attach;
236	ctlr->ch_detach = ata_pci_ch_detach;
237	ctlr->setmode = ata_promise_setmode;
238	return 0;
239
240    case PR_TX:
241	ctlr->ch_attach = ata_promise_tx2_ch_attach;
242	ctlr->ch_detach = ata_pci_ch_detach;
243	ctlr->setmode = ata_promise_setmode;
244	return 0;
245
246    case PR_MIO:
247	ctlr->r_type1 = SYS_RES_MEMORY;
248	ctlr->r_rid1 = PCIR_BAR(4);
249	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
250						    &ctlr->r_rid1, RF_ACTIVE)))
251	    goto failnfree;
252
253#ifdef __sparc64__
254	if (ctlr->chip->cfg2 == PR_SX4X &&
255	    !bus_space_map(rman_get_bustag(ctlr->r_res1),
256	    rman_get_bushandle(ctlr->r_res1), rman_get_size(ctlr->r_res1),
257	    BUS_SPACE_MAP_LINEAR, NULL))
258		goto failnfree;
259#endif
260
261	ctlr->r_type2 = SYS_RES_MEMORY;
262	ctlr->r_rid2 = PCIR_BAR(3);
263	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
264						    &ctlr->r_rid2, RF_ACTIVE)))
265	    goto failnfree;
266
267	if (ctlr->chip->cfg2 == PR_SX4X) {
268	    struct ata_promise_sx4 *hpkt;
269	    u_int32_t dimm = ATA_INL(ctlr->r_res2, 0x000c0080);
270
271	    if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
272		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
273			       ata_promise_sx4_intr, ctlr, &ctlr->handle)) {
274		device_printf(dev, "unable to setup interrupt\n");
275		goto failnfree;
276	    }
277
278	    /* print info about cache memory */
279	    device_printf(dev, "DIMM size %dMB @ 0x%08x%s\n",
280			  (((dimm >> 16) & 0xff)-((dimm >> 24) & 0xff)+1) << 4,
281			  ((dimm >> 24) & 0xff),
282			  ATA_INL(ctlr->r_res2, 0x000c0088) & (1<<16) ?
283			  " ECC enabled" : "" );
284
285	    /* adjust cache memory parameters */
286	    ATA_OUTL(ctlr->r_res2, 0x000c000c,
287		     (ATA_INL(ctlr->r_res2, 0x000c000c) & 0xffff0000));
288
289	    /* setup host packet controls */
290	    hpkt = malloc(sizeof(struct ata_promise_sx4),
291			  M_ATAPCI, M_NOWAIT | M_ZERO);
292	    if (hpkt == NULL) {
293		device_printf(dev, "Cannot allocate HPKT\n");
294		goto failnfree;
295	    }
296	    mtx_init(&hpkt->mtx, "ATA promise HPKT lock", NULL, MTX_DEF);
297	    TAILQ_INIT(&hpkt->queue);
298	    hpkt->busy = 0;
299	    ctlr->chipset_data = hpkt;
300	    ctlr->ch_attach = ata_promise_mio_ch_attach;
301	    ctlr->ch_detach = ata_promise_mio_ch_detach;
302	    ctlr->reset = ata_promise_mio_reset;
303	    ctlr->setmode = ata_promise_setmode;
304	    ctlr->channels = 4;
305	    return 0;
306	}
307
308	/* mio type controllers need an interrupt intercept */
309	if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
310	    bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
311			       ata_promise_mio_intr, ctlr, &ctlr->handle)) {
312		device_printf(dev, "unable to setup interrupt\n");
313		goto failnfree;
314	}
315
316	switch (ctlr->chip->cfg2) {
317	case PR_PATA:
318	    ctlr->channels = ((ATA_INL(ctlr->r_res2, 0x48) & 0x01) > 0) +
319			     ((ATA_INL(ctlr->r_res2, 0x48) & 0x02) > 0) + 2;
320	    goto sata150;
321	case PR_CMBO:
322	    ctlr->channels = 3;
323	    goto sata150;
324	case PR_SATA:
325	    ctlr->channels = 4;
326sata150:
327	    stat_reg = 0x6c;
328	    break;
329
330	case PR_CMBO2:
331	    ctlr->channels = 3;
332	    goto sataii;
333	case PR_SATA2:
334	default:
335	    ctlr->channels = 4;
336sataii:
337	    stat_reg = 0x60;
338	    break;
339	}
340
341	/* prime fake interrupt register */
342	ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
343
344	/* clear SATA status and unmask interrupts */
345	ATA_OUTL(ctlr->r_res2, stat_reg, 0x000000ff);
346
347	/* enable "long burst length" on gen2 chips */
348	if ((ctlr->chip->cfg2 == PR_SATA2) || (ctlr->chip->cfg2 == PR_CMBO2))
349	    ATA_OUTL(ctlr->r_res2, 0x44, ATA_INL(ctlr->r_res2, 0x44) | 0x2000);
350
351	ctlr->ch_attach = ata_promise_mio_ch_attach;
352	ctlr->ch_detach = ata_promise_mio_ch_detach;
353	ctlr->reset = ata_promise_mio_reset;
354	ctlr->setmode = ata_promise_mio_setmode;
355	ctlr->getrev = ata_promise_mio_getrev;
356
357	return 0;
358    }
359
360failnfree:
361    if (ctlr->r_res2)
362	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
363    if (ctlr->r_res1)
364	bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
365    return ENXIO;
366}
367
368static int
369ata_promise_ch_attach(device_t dev)
370{
371    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
372    struct ata_channel *ch = device_get_softc(dev);
373
374    if (ata_pci_ch_attach(dev))
375	return ENXIO;
376
377    if (ctlr->chip->cfg1 == PR_NEW) {
378        ch->dma.start = ata_promise_dmastart;
379        ch->dma.stop = ata_promise_dmastop;
380        ch->dma.reset = ata_promise_dmareset;
381    }
382
383    ch->hw.status = ata_promise_status;
384    ch->flags |= ATA_NO_ATAPI_DMA;
385    ch->flags |= ATA_CHECKS_CABLE;
386    return 0;
387}
388
389static int
390ata_promise_status(device_t dev)
391{
392    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
393    struct ata_channel *ch = device_get_softc(dev);
394
395    if (ATA_INL(ctlr->r_res1, 0x1c) & (ch->unit ? 0x00004000 : 0x00000400)) {
396	return ata_pci_status(dev);
397    }
398    return 0;
399}
400
401static int
402ata_promise_dmastart(struct ata_request *request)
403{
404    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
405    struct ata_channel *ch = device_get_softc(request->parent);
406
407    if (request->flags & ATA_R_48BIT) {
408	ATA_OUTB(ctlr->r_res1, 0x11,
409		 ATA_INB(ctlr->r_res1, 0x11) | (ch->unit ? 0x08 : 0x02));
410	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20,
411		 ((request->flags & ATA_R_READ) ? 0x05000000 : 0x06000000) |
412		 (request->bytecount >> 1));
413    }
414    ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
415		 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
416    ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
417    ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
418		 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0) |
419		 ATA_BMCMD_START_STOP);
420    ch->dma.flags |= ATA_DMA_ACTIVE;
421    return 0;
422}
423
424static int
425ata_promise_dmastop(struct ata_request *request)
426{
427    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
428    struct ata_channel *ch = device_get_softc(request->parent);
429    int error;
430
431    if (request->flags & ATA_R_48BIT) {
432	ATA_OUTB(ctlr->r_res1, 0x11,
433		 ATA_INB(ctlr->r_res1, 0x11) & ~(ch->unit ? 0x08 : 0x02));
434	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20, 0);
435    }
436    error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT);
437    ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
438		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
439    ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
440    ch->dma.flags &= ~ATA_DMA_ACTIVE;
441    return error;
442}
443
444static void
445ata_promise_dmareset(device_t dev)
446{
447    struct ata_channel *ch = device_get_softc(dev);
448
449    ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
450		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
451    ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
452    ch->flags &= ~ATA_DMA_ACTIVE;
453}
454
455static int
456ata_promise_setmode(device_t dev, int target, int mode)
457{
458    device_t parent = device_get_parent(dev);
459    struct ata_pci_controller *ctlr = device_get_softc(parent);
460    struct ata_channel *ch = device_get_softc(dev);
461    int devno = (ch->unit << 1) + target;
462    static const uint32_t timings[][2] = {
463    /*    PR_OLD      PR_NEW               mode */
464	{ 0x004ff329, 0x004fff2f },     /* PIO 0 */
465	{ 0x004fec25, 0x004ff82a },     /* PIO 1 */
466	{ 0x004fe823, 0x004ff026 },     /* PIO 2 */
467	{ 0x004fe622, 0x004fec24 },     /* PIO 3 */
468	{ 0x004fe421, 0x004fe822 },     /* PIO 4 */
469	{ 0x004567f3, 0x004acef6 },     /* MWDMA 0 */
470	{ 0x004467f3, 0x0048cef6 },     /* MWDMA 1 */
471	{ 0x004367f3, 0x0046cef6 },     /* MWDMA 2 */
472	{ 0x004367f3, 0x0046cef6 },     /* UDMA 0 */
473	{ 0x004247f3, 0x00448ef6 },     /* UDMA 1 */
474	{ 0x004127f3, 0x00436ef6 },     /* UDMA 2 */
475	{ 0,          0x00424ef6 },     /* UDMA 3 */
476	{ 0,          0x004127f3 },     /* UDMA 4 */
477	{ 0,          0x004127f3 }      /* UDMA 5 */
478    };
479
480    mode = min(mode, ctlr->chip->max_dma);
481
482    switch (ctlr->chip->cfg1) {
483    case PR_OLD:
484    case PR_NEW:
485	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
486	    (pci_read_config(parent, 0x50, 2) &
487				 (ch->unit ? 1 << 11 : 1 << 10))) {
488	    ata_print_cable(dev, "controller");
489	    mode = ATA_UDMA2;
490	}
491	break;
492
493    case PR_TX:
494	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
495	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
496	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
497	    ata_print_cable(dev, "controller");
498	    mode = ATA_UDMA2;
499	}
500	break;
501
502    case PR_MIO:
503	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
504	    (ATA_INL(ctlr->r_res2,
505		     (ctlr->chip->cfg2 & PR_SX4X ? 0x000c0260 : 0x0260) +
506		     (ch->unit << 7)) & 0x01000000)) {
507	    ata_print_cable(dev, "controller");
508	    mode = ATA_UDMA2;
509	}
510	break;
511    }
512
513	if (ctlr->chip->cfg1 < PR_TX)
514	    pci_write_config(parent, 0x60 + (devno << 2),
515			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
516	return (mode);
517}
518
519static int
520ata_promise_tx2_ch_attach(device_t dev)
521{
522    struct ata_channel *ch = device_get_softc(dev);
523
524    if (ata_pci_ch_attach(dev))
525	return ENXIO;
526
527    ch->hw.status = ata_promise_tx2_status;
528    ch->flags |= ATA_CHECKS_CABLE;
529    return 0;
530}
531
532static int
533ata_promise_tx2_status(device_t dev)
534{
535    struct ata_channel *ch = device_get_softc(dev);
536
537    ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
538    if (ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x20) {
539	return ata_pci_status(dev);
540    }
541    return 0;
542}
543
544static int
545ata_promise_mio_ch_attach(device_t dev)
546{
547    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
548    struct ata_channel *ch = device_get_softc(dev);
549    int offset = (ctlr->chip->cfg2 & PR_SX4X) ? 0x000c0000 : 0;
550    int i;
551
552    ata_promise_mio_dmainit(dev);
553
554    for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
555	ch->r_io[i].res = ctlr->r_res2;
556	ch->r_io[i].offset = offset + 0x0200 + (i << 2) + (ch->unit << 7);
557    }
558    ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
559    ch->r_io[ATA_CONTROL].offset = offset + 0x0238 + (ch->unit << 7);
560    ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
561    ata_default_registers(dev);
562    if ((ctlr->chip->cfg2 & (PR_SATA | PR_SATA2)) ||
563	((ctlr->chip->cfg2 & (PR_CMBO | PR_CMBO2)) && ch->unit < 2)) {
564	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
565	ch->r_io[ATA_SSTATUS].offset = 0x400 + (ch->unit << 8);
566	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
567	ch->r_io[ATA_SERROR].offset = 0x404 + (ch->unit << 8);
568	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
569	ch->r_io[ATA_SCONTROL].offset = 0x408 + (ch->unit << 8);
570	ch->flags |= ATA_NO_SLAVE;
571	ch->flags |= ATA_SATA;
572    }
573    ch->flags |= ATA_USE_16BIT;
574    ch->flags |= ATA_CHECKS_CABLE;
575
576    ata_generic_hw(dev);
577    if (ctlr->chip->cfg2 & PR_SX4X) {
578	ch->hw.command = ata_promise_sx4_command;
579    }
580    else {
581	ch->hw.command = ata_promise_mio_command;
582	ch->hw.status = ata_promise_mio_status;
583	ch->hw.softreset = ata_promise_mio_softreset;
584	ch->hw.pm_read = ata_promise_mio_pm_read;
585	ch->hw.pm_write = ata_promise_mio_pm_write;
586     }
587    return 0;
588}
589
590static int
591ata_promise_mio_ch_detach(device_t dev)
592{
593
594    ata_dmafini(dev);
595    return (0);
596}
597
598static void
599ata_promise_mio_intr(void *data)
600{
601    struct ata_pci_controller *ctlr = data;
602    struct ata_channel *ch;
603    u_int32_t vector;
604    int unit;
605
606    /*
607     * since reading interrupt status register on early "mio" chips
608     * clears the status bits we cannot read it for each channel later on
609     * in the generic interrupt routine.
610     */
611    vector = ATA_INL(ctlr->r_res2, 0x040);
612    ATA_OUTL(ctlr->r_res2, 0x040, vector);
613    ctlr->chipset_data = (void *)(uintptr_t)vector;
614
615    for (unit = 0; unit < ctlr->channels; unit++) {
616	if ((ch = ctlr->interrupt[unit].argument))
617	    ctlr->interrupt[unit].function(ch);
618    }
619
620    ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
621}
622
623static int
624ata_promise_mio_status(device_t dev)
625{
626    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
627    struct ata_channel *ch = device_get_softc(dev);
628    u_int32_t stat_reg, vector, status;
629
630    switch (ctlr->chip->cfg2) {
631    case PR_PATA:
632    case PR_CMBO:
633    case PR_SATA:
634	stat_reg = 0x6c;
635	break;
636    case PR_CMBO2:
637    case PR_SATA2:
638    default:
639	stat_reg = 0x60;
640	break;
641    }
642
643    /* read and acknowledge interrupt */
644    vector = (uint32_t)(uintptr_t)ctlr->chipset_data;
645
646    /* read and clear interface status */
647    status = ATA_INL(ctlr->r_res2, stat_reg);
648    ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
649
650    /* check for and handle disconnect events */
651    if (status & (0x00000001 << ch->unit)) {
652	if (bootverbose)
653	    device_printf(dev, "DISCONNECT requested\n");
654	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
655    }
656
657    /* check for and handle connect events */
658    if (status & (0x00000010 << ch->unit)) {
659	if (bootverbose)
660	    device_printf(dev, "CONNECT requested\n");
661	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
662    }
663
664    /* do we have any device action ? */
665    return (vector & (1 << (ch->unit + 1)));
666}
667
668static int
669ata_promise_mio_command(struct ata_request *request)
670{
671    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
672    struct ata_channel *ch = device_get_softc(request->parent);
673
674    u_int32_t *wordp = (u_int32_t *)ch->dma.work;
675
676    ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
677
678    if ((ctlr->chip->cfg2 == PR_SATA2) ||
679        ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
680	/* set portmultiplier port */
681	ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), request->unit & 0x0f);
682    }
683
684    /* XXX SOS add ATAPI commands support later */
685    switch (request->u.ata.command) {
686    default:
687	return ata_generic_command(request);
688
689    case ATA_READ_DMA:
690    case ATA_READ_DMA48:
691	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
692	break;
693
694    case ATA_WRITE_DMA:
695    case ATA_WRITE_DMA48:
696	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
697	break;
698    }
699    wordp[1] = htole32(request->dma->sg_bus);
700    wordp[2] = 0;
701    ata_promise_apkt((u_int8_t*)wordp, request);
702
703    ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma.work_bus);
704    return 0;
705}
706
707static void
708ata_promise_mio_reset(device_t dev)
709{
710    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
711    struct ata_channel *ch = device_get_softc(dev);
712    struct ata_promise_sx4 *hpktp;
713
714    switch (ctlr->chip->cfg2) {
715    case PR_SX4X:
716
717	/* softreset channel ATA module */
718	hpktp = ctlr->chipset_data;
719	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
720	ata_udelay(1000);
721	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
722		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
723		  ~0x00003f9f) | (ch->unit + 1));
724
725	/* softreset HOST module */ /* XXX SOS what about other outstandings */
726	mtx_lock(&hpktp->mtx);
727	ATA_OUTL(ctlr->r_res2, 0xc012c,
728		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
729	DELAY(10);
730	ATA_OUTL(ctlr->r_res2, 0xc012c,
731		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
732	hpktp->busy = 0;
733	mtx_unlock(&hpktp->mtx);
734	ata_generic_reset(dev);
735	break;
736
737    case PR_PATA:
738    case PR_CMBO:
739    case PR_SATA:
740	if ((ctlr->chip->cfg2 == PR_SATA) ||
741	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
742
743	    /* mask plug/unplug intr */
744	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
745	}
746
747	/* softreset channels ATA module */
748	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
749	ata_udelay(10000);
750	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
751		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
752		  ~0x00003f9f) | (ch->unit + 1));
753
754	if ((ctlr->chip->cfg2 == PR_SATA) ||
755	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
756
757	    if (ata_sata_phy_reset(dev, -1, 1))
758		ata_generic_reset(dev);
759	    else
760		ch->devices = 0;
761
762	    /* reset and enable plug/unplug intr */
763	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
764	}
765	else
766	    ata_generic_reset(dev);
767	break;
768
769    case PR_CMBO2:
770    case PR_SATA2:
771	if ((ctlr->chip->cfg2 == PR_SATA2) ||
772	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
773	    /* set portmultiplier port */
774	    //ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
775
776	    /* mask plug/unplug intr */
777	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
778	}
779
780	/* softreset channels ATA module */
781	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
782	ata_udelay(10000);
783	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
784		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
785		  ~0x00003f9f) | (ch->unit + 1));
786
787	if ((ctlr->chip->cfg2 == PR_SATA2) ||
788	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
789
790	    /* set PHY mode to "improved" */
791	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
792		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
793		     ~0x00000003) | 0x00000001);
794
795	    if (ata_sata_phy_reset(dev, -1, 1)) {
796		u_int32_t signature = ch->hw.softreset(dev, ATA_PM);
797
798		if (bootverbose)
799        	    device_printf(dev, "SIGNATURE: %08x\n", signature);
800
801		switch (signature >> 16) {
802		case 0x0000:
803		    ch->devices = ATA_ATA_MASTER;
804		    break;
805		case 0x9669:
806		    ch->devices = ATA_PORTMULTIPLIER;
807		    ata_pm_identify(dev);
808		    break;
809		case 0xeb14:
810		    ch->devices = ATA_ATAPI_MASTER;
811		    break;
812		default: /* SOS XXX */
813		    if (bootverbose)
814			device_printf(dev,
815				      "No signature, assuming disk device\n");
816		    ch->devices = ATA_ATA_MASTER;
817		}
818		if (bootverbose)
819		    device_printf(dev, "promise_mio_reset devices=%08x\n",
820		    		  ch->devices);
821
822	    } else
823		ch->devices = 0;
824
825	    /* reset and enable plug/unplug intr */
826	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
827
828	    ///* set portmultiplier port */
829	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
830	}
831	else
832	    ata_generic_reset(dev);
833	break;
834
835    }
836}
837
838static int
839ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result)
840{
841    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
842    struct ata_channel *ch = device_get_softc(dev);
843    int timeout = 0;
844
845    if (port < 0) {
846	*result = ATA_IDX_INL(ch, reg);
847	return (0);
848    }
849    if (port < ATA_PM) {
850	switch (reg) {
851	case ATA_SSTATUS:
852	    reg = 0;
853	    break;
854	case ATA_SERROR:
855	    reg = 1;
856	    break;
857	case ATA_SCONTROL:
858	    reg = 2;
859	    break;
860	default:
861	    return (EINVAL);
862	}
863    }
864    /* set portmultiplier port */
865    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
866
867    ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
868    ATA_IDX_OUTB(ch, ATA_DRIVE, port);
869
870    ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_READ_PM);
871
872    while (timeout < 1000000) {
873	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
874	if (!(status & ATA_S_BUSY))
875	    break;
876	timeout += 1000;
877	DELAY(1000);
878    }
879    if (timeout >= 1000000)
880	return ATA_E_ABORT;
881
882    *result = ATA_IDX_INB(ch, ATA_COUNT) |
883	      (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
884	      (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
885	      (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
886    return 0;
887}
888
889static int
890ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t value)
891{
892    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
893    struct ata_channel *ch = device_get_softc(dev);
894    int timeout = 0;
895
896    if (port < 0) {
897	ATA_IDX_OUTL(ch, reg, value);
898	return (0);
899    }
900    if (port < ATA_PM) {
901	switch (reg) {
902	case ATA_SSTATUS:
903	    reg = 0;
904	    break;
905	case ATA_SERROR:
906	    reg = 1;
907	    break;
908	case ATA_SCONTROL:
909	    reg = 2;
910	    break;
911	default:
912	    return (EINVAL);
913	}
914    }
915    /* set portmultiplier port */
916    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
917
918    ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
919    ATA_IDX_OUTB(ch, ATA_DRIVE, port);
920    ATA_IDX_OUTB(ch, ATA_COUNT, value & 0xff);
921    ATA_IDX_OUTB(ch, ATA_SECTOR, (value >> 8) & 0xff);
922    ATA_IDX_OUTB(ch, ATA_CYL_LSB, (value >> 16) & 0xff);
923    ATA_IDX_OUTB(ch, ATA_CYL_MSB, (value >> 24) & 0xff);
924
925    ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_WRITE_PM);
926
927    while (timeout < 1000000) {
928	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
929	if (!(status & ATA_S_BUSY))
930	    break;
931	timeout += 1000;
932	DELAY(1000);
933    }
934    if (timeout >= 1000000)
935	return ATA_E_ABORT;
936
937    return ATA_IDX_INB(ch, ATA_ERROR);
938}
939
940/* must be called with ATA channel locked and state_mtx held */
941static u_int32_t
942ata_promise_mio_softreset(device_t dev, int port)
943{
944    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
945    struct ata_channel *ch = device_get_softc(dev);
946    int timeout;
947
948    /* set portmultiplier port */
949    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), port & 0x0f);
950
951    /* softreset device on this channel */
952    ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | ATA_DEV(ATA_MASTER));
953    DELAY(10);
954    ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS | ATA_A_RESET);
955    ata_udelay(10000);
956    ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS);
957    ata_udelay(150000);
958    ATA_IDX_INB(ch, ATA_ERROR);
959
960    /* wait for BUSY to go inactive */
961    for (timeout = 0; timeout < 100; timeout++) {
962	u_int8_t /* err, */ stat;
963
964	/* err = */ ATA_IDX_INB(ch, ATA_ERROR);
965	stat = ATA_IDX_INB(ch, ATA_STATUS);
966
967	//if (stat == err && timeout > (stat & ATA_S_BUSY ? 100 : 10))
968	    //break;
969
970	if (!(stat & ATA_S_BUSY)) {
971	    //if ((err & 0x7f) == ATA_E_ILI) {
972		return ATA_IDX_INB(ch, ATA_COUNT) |
973		       (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
974		       (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
975		       (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
976	    //}
977	    //else if (stat & 0x0f) {
978		//stat |= ATA_S_BUSY;
979	    //}
980	}
981
982	if (!(stat & ATA_S_BUSY) || (stat == 0xff && timeout > 10))
983	    break;
984	ata_udelay(100000);
985    }
986    return -1;
987}
988
989static void
990ata_promise_mio_dmainit(device_t dev)
991{
992    struct ata_channel *ch = device_get_softc(dev);
993
994    /* note start and stop are not used here */
995    ch->dma.setprd = ata_promise_mio_setprd;
996    ch->dma.max_iosize = 65536;
997    ata_dmainit(dev);
998}
999
1000#define MAXLASTSGSIZE (32 * sizeof(u_int32_t))
1001static void
1002ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
1003{
1004    struct ata_dmasetprd_args *args = xsc;
1005    struct ata_dma_prdentry *prd = args->dmatab;
1006    int i;
1007
1008    if ((args->error = error))
1009	return;
1010
1011    for (i = 0; i < nsegs; i++) {
1012	prd[i].addr = htole32(segs[i].ds_addr);
1013	prd[i].count = htole32(segs[i].ds_len);
1014    }
1015    if (segs[i - 1].ds_len > MAXLASTSGSIZE) {
1016	//printf("split last SG element of %u\n", segs[i - 1].ds_len);
1017	prd[i - 1].count = htole32(segs[i - 1].ds_len - MAXLASTSGSIZE);
1018	prd[i].count = htole32(MAXLASTSGSIZE);
1019	prd[i].addr = htole32(segs[i - 1].ds_addr +
1020			      (segs[i - 1].ds_len - MAXLASTSGSIZE));
1021	nsegs++;
1022	i++;
1023    }
1024    prd[i - 1].count |= htole32(ATA_DMA_EOT);
1025    KASSERT(nsegs <= ATA_DMA_ENTRIES, ("too many DMA segment entries\n"));
1026    args->nsegs = nsegs;
1027}
1028
1029static int
1030ata_promise_mio_setmode(device_t dev, int target, int mode)
1031{
1032        struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1033        struct ata_channel *ch = device_get_softc(dev);
1034
1035        if ( (ctlr->chip->cfg2 == PR_SATA) ||
1036    	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1037	     (ctlr->chip->cfg2 == PR_SATA2) ||
1038	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1039		mode = ata_sata_setmode(dev, target, mode);
1040	else
1041		mode = ata_promise_setmode(dev, target, mode);
1042	return (mode);
1043}
1044
1045static int
1046ata_promise_mio_getrev(device_t dev, int target)
1047{
1048        struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1049        struct ata_channel *ch = device_get_softc(dev);
1050
1051        if ( (ctlr->chip->cfg2 == PR_SATA) ||
1052    	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1053	     (ctlr->chip->cfg2 == PR_SATA2) ||
1054	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1055		return (ata_sata_getrev(dev, target));
1056	else
1057		return (0);
1058}
1059
1060static void
1061ata_promise_sx4_intr(void *data)
1062{
1063    struct ata_pci_controller *ctlr = data;
1064    struct ata_channel *ch;
1065    u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
1066    int unit;
1067
1068    for (unit = 0; unit < ctlr->channels; unit++) {
1069	if (vector & (1 << (unit + 1)))
1070	    if ((ch = ctlr->interrupt[unit].argument))
1071		ctlr->interrupt[unit].function(ch);
1072	if (vector & (1 << (unit + 5)))
1073	    if ((ch = ctlr->interrupt[unit].argument))
1074		ata_promise_queue_hpkt(ctlr,
1075				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1076					       ATA_PDC_HPKT_OFFSET));
1077	if (vector & (1 << (unit + 9))) {
1078	    ata_promise_next_hpkt(ctlr);
1079	    if ((ch = ctlr->interrupt[unit].argument))
1080		ctlr->interrupt[unit].function(ch);
1081	}
1082	if (vector & (1 << (unit + 13))) {
1083	    ata_promise_next_hpkt(ctlr);
1084	    if ((ch = ctlr->interrupt[unit].argument))
1085		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1086			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1087			 ATA_PDC_APKT_OFFSET));
1088	}
1089    }
1090}
1091
1092static int
1093ata_promise_sx4_command(struct ata_request *request)
1094{
1095    device_t gparent = device_get_parent(request->parent);
1096    struct ata_pci_controller *ctlr = device_get_softc(gparent);
1097    struct ata_channel *ch = device_get_softc(request->parent);
1098    struct ata_dma_prdentry *prd;
1099    caddr_t window = rman_get_virtual(ctlr->r_res1);
1100    u_int32_t *wordp;
1101    int i, idx, length = 0;
1102
1103    /* XXX SOS add ATAPI commands support later */
1104    switch (request->u.ata.command) {
1105
1106    default:
1107	return -1;
1108
1109    case ATA_ATA_IDENTIFY:
1110    case ATA_READ:
1111    case ATA_READ48:
1112    case ATA_READ_MUL:
1113    case ATA_READ_MUL48:
1114    case ATA_WRITE:
1115    case ATA_WRITE48:
1116    case ATA_WRITE_MUL:
1117    case ATA_WRITE_MUL48:
1118	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1119	return ata_generic_command(request);
1120
1121    case ATA_SETFEATURES:
1122    case ATA_FLUSHCACHE:
1123    case ATA_FLUSHCACHE48:
1124    case ATA_SLEEP:
1125    case ATA_SET_MULTI:
1126	wordp = (u_int32_t *)
1127	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1128	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
1129	wordp[1] = 0;
1130	wordp[2] = 0;
1131	ata_promise_apkt((u_int8_t *)wordp, request);
1132	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1133	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1134	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1135		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
1136	return 0;
1137
1138    case ATA_READ_DMA:
1139    case ATA_READ_DMA48:
1140    case ATA_WRITE_DMA:
1141    case ATA_WRITE_DMA48:
1142	prd = request->dma->sg;
1143	wordp = (u_int32_t *)
1144	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
1145	i = idx = 0;
1146	do {
1147	    wordp[idx++] = prd[i].addr;
1148	    wordp[idx++] = prd[i].count;
1149	    length += (prd[i].count & ~ATA_DMA_EOT);
1150	} while (!(prd[i++].count & ATA_DMA_EOT));
1151
1152	wordp = (u_int32_t *)
1153	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
1154	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1155	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1156
1157	wordp = (u_int32_t *)
1158	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
1159	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1160	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1161
1162	wordp = (u_int32_t *)
1163	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
1164	if (request->flags & ATA_R_READ)
1165	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
1166	if (request->flags & ATA_R_WRITE)
1167	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
1168	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
1169	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
1170	wordp[3] = 0;
1171
1172	wordp = (u_int32_t *)
1173	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1174	if (request->flags & ATA_R_READ)
1175	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
1176	if (request->flags & ATA_R_WRITE)
1177	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
1178	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
1179	wordp[2] = 0;
1180	ata_promise_apkt((u_int8_t *)wordp, request);
1181	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1182
1183	if (request->flags & ATA_R_READ) {
1184	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
1185	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
1186	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1187		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
1188	}
1189	if (request->flags & ATA_R_WRITE) {
1190	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
1191	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
1192	    ata_promise_queue_hpkt(ctlr,
1193		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
1194	}
1195	return 0;
1196    }
1197}
1198
1199static int
1200ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
1201{
1202    int i = 12;
1203
1204    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
1205    bytep[i++] = ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit);
1206    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
1207    bytep[i++] = ATA_A_4BIT;
1208
1209    if (request->flags & ATA_R_48BIT) {
1210	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1211	bytep[i++] = request->u.ata.feature >> 8;
1212	bytep[i++] = request->u.ata.feature;
1213	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
1214	bytep[i++] = request->u.ata.count >> 8;
1215	bytep[i++] = request->u.ata.count;
1216	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1217	bytep[i++] = request->u.ata.lba >> 24;
1218	bytep[i++] = request->u.ata.lba;
1219	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1220	bytep[i++] = request->u.ata.lba >> 32;
1221	bytep[i++] = request->u.ata.lba >> 8;
1222	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1223	bytep[i++] = request->u.ata.lba >> 40;
1224	bytep[i++] = request->u.ata.lba >> 16;
1225	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1226	bytep[i++] = ATA_D_LBA | ATA_DEV(request->unit);
1227    }
1228    else {
1229	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1230	bytep[i++] = request->u.ata.feature;
1231	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
1232	bytep[i++] = request->u.ata.count;
1233	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1234	bytep[i++] = request->u.ata.lba;
1235	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1236	bytep[i++] = request->u.ata.lba >> 8;
1237	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1238	bytep[i++] = request->u.ata.lba >> 16;
1239	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1240	bytep[i++] = ATA_D_LBA | ATA_D_IBM | ATA_DEV(request->unit) |
1241		     ((request->u.ata.lba >> 24)&0xf);
1242    }
1243    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
1244    bytep[i++] = request->u.ata.command;
1245    return i;
1246}
1247
1248static void
1249ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
1250{
1251    struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1252
1253    mtx_lock(&hpktp->mtx);
1254    if (hpktp->busy) {
1255	struct host_packet *hp =
1256	    malloc(sizeof(struct host_packet), M_TEMP, M_NOWAIT | M_ZERO);
1257	hp->addr = hpkt;
1258	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
1259    }
1260    else {
1261	hpktp->busy = 1;
1262	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
1263    }
1264    mtx_unlock(&hpktp->mtx);
1265}
1266
1267static void
1268ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
1269{
1270    struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1271    struct host_packet *hp;
1272
1273    mtx_lock(&hpktp->mtx);
1274    if ((hp = TAILQ_FIRST(&hpktp->queue))) {
1275	TAILQ_REMOVE(&hpktp->queue, hp, chain);
1276	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
1277	free(hp, M_TEMP);
1278    }
1279    else
1280	hpktp->busy = 0;
1281    mtx_unlock(&hpktp->mtx);
1282}
1283
1284ATA_DECLARE_DRIVER(ata_promise);
1285