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: stable/11/sys/dev/ata/chipsets/ata-promise.c 355965 2019-12-20 22:12:21Z brooks $");
29
30#include <sys/param.h>
31#include <sys/module.h>
32#include <sys/systm.h>
33#include <sys/kernel.h>
34#include <sys/ata.h>
35#include <sys/bus.h>
36#include <sys/endian.h>
37#include <sys/malloc.h>
38#include <sys/lock.h>
39#include <sys/mutex.h>
40#include <sys/sema.h>
41#include <sys/taskqueue.h>
42#include <vm/uma.h>
43#include <machine/stdarg.h>
44#include <machine/resource.h>
45#include <machine/bus.h>
46#include <sys/rman.h>
47#include <dev/pci/pcivar.h>
48#include <dev/pci/pcireg.h>
49#include <dev/ata/ata-all.h>
50#include <dev/ata/ata-pci.h>
51#include <ata_if.h>
52
53/* local prototypes */
54static int ata_promise_chipinit(device_t dev);
55static int ata_promise_ch_attach(device_t dev);
56static int ata_promise_status(device_t dev);
57static int ata_promise_dmastart(struct ata_request *request);
58static int ata_promise_dmastop(struct ata_request *request);
59static void ata_promise_dmareset(device_t dev);
60static int ata_promise_setmode(device_t dev, int target, int mode);
61static int ata_promise_tx2_ch_attach(device_t dev);
62static int ata_promise_tx2_status(device_t dev);
63static int ata_promise_mio_ch_attach(device_t dev);
64static int ata_promise_mio_ch_detach(device_t dev);
65static void ata_promise_mio_intr(void *data);
66static int ata_promise_mio_status(device_t dev);
67static int ata_promise_mio_command(struct ata_request *request);
68static void ata_promise_mio_reset(device_t dev);
69static int ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result);
70static int ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t result);
71static u_int32_t ata_promise_mio_softreset(device_t dev, int port);
72static void ata_promise_mio_dmainit(device_t dev);
73static void ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
74static int ata_promise_mio_setmode(device_t dev, int target, int mode);
75static int ata_promise_mio_getrev(device_t dev, int target);
76static void ata_promise_sx4_intr(void *data);
77static int ata_promise_sx4_command(struct ata_request *request);
78static int ata_promise_apkt(u_int8_t *bytep, struct ata_request *request);
79static void ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt);
80static void ata_promise_next_hpkt(struct ata_pci_controller *ctlr);
81
82/* misc defines */
83#define PR_OLD		0
84#define PR_NEW		1
85#define PR_TX		2
86#define PR_MIO		3
87#define PR_TX4		0x01
88#define PR_SX4X		0x02
89#define PR_SX6K		0x04
90#define PR_PATA		0x08
91#define PR_CMBO		0x10
92#define PR_CMBO2	0x20
93#define PR_SATA		0x40
94#define PR_SATA2	0x80
95
96/*
97 * Promise chipset support functions
98 */
99#define ATA_PDC_APKT_OFFSET     0x00000010
100#define ATA_PDC_HPKT_OFFSET     0x00000040
101#define ATA_PDC_ASG_OFFSET      0x00000080
102#define ATA_PDC_LSG_OFFSET      0x000000c0
103#define ATA_PDC_HSG_OFFSET      0x00000100
104#define ATA_PDC_CHN_OFFSET      0x00000400
105#define ATA_PDC_BUF_BASE        0x00400000
106#define ATA_PDC_BUF_OFFSET      0x00100000
107#define ATA_PDC_MAX_HPKT        8
108#define ATA_PDC_WRITE_REG       0x00
109#define ATA_PDC_WRITE_CTL       0x0e
110#define ATA_PDC_WRITE_END       0x08
111#define ATA_PDC_WAIT_NBUSY      0x10
112#define ATA_PDC_WAIT_READY      0x18
113#define ATA_PDC_1B              0x20
114#define ATA_PDC_2B              0x40
115
116struct host_packet {
117    u_int32_t                   addr;
118    TAILQ_ENTRY(host_packet)    chain;
119};
120
121struct ata_promise_sx4 {
122    struct mtx                  mtx;
123    TAILQ_HEAD(, host_packet)   queue;
124    int                         busy;
125};
126
127static int
128ata_promise_probe(device_t dev)
129{
130    struct ata_pci_controller *ctlr = device_get_softc(dev);
131    const struct ata_chip_id *idx;
132    static const struct ata_chip_id ids[] =
133    {{ ATA_PDC20246,  0, PR_OLD, 0x00,     ATA_UDMA2, "PDC20246" },
134     { ATA_PDC20262,  0, PR_NEW, 0x00,     ATA_UDMA4, "PDC20262" },
135     { ATA_PDC20263,  0, PR_NEW, 0x00,     ATA_UDMA4, "PDC20263" },
136     { ATA_PDC20265,  0, PR_NEW, 0x00,     ATA_UDMA5, "PDC20265" },
137     { ATA_PDC20267,  0, PR_NEW, 0x00,     ATA_UDMA5, "PDC20267" },
138     { ATA_PDC20268,  0, PR_TX,  PR_TX4,   ATA_UDMA5, "PDC20268" },
139     { ATA_PDC20269,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20269" },
140     { ATA_PDC20270,  0, PR_TX,  PR_TX4,   ATA_UDMA5, "PDC20270" },
141     { ATA_PDC20271,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20271" },
142     { ATA_PDC20275,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20275" },
143     { ATA_PDC20276,  0, PR_TX,  PR_SX6K,  ATA_UDMA6, "PDC20276" },
144     { ATA_PDC20277,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20277" },
145     { ATA_PDC20318,  0, PR_MIO, PR_SATA,  ATA_SA150, "PDC20318" },
146     { ATA_PDC20319,  0, PR_MIO, PR_SATA,  ATA_SA150, "PDC20319" },
147     { ATA_PDC20371,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20371" },
148     { ATA_PDC20375,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20375" },
149     { ATA_PDC20376,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20376" },
150     { ATA_PDC20377,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20377" },
151     { ATA_PDC20378,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20378" },
152     { ATA_PDC20379,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20379" },
153     { ATA_PDC20571,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20571" },
154     { ATA_PDC20575,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20575" },
155     { ATA_PDC20579,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20579" },
156     { ATA_PDC20771,  0, PR_MIO, PR_CMBO2, ATA_SA300, "PDC20771" },
157     { ATA_PDC40775,  0, PR_MIO, PR_CMBO2, ATA_SA300, "PDC40775" },
158     { ATA_PDC20617,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20617" },
159     { ATA_PDC20618,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20618" },
160     { ATA_PDC20619,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20619" },
161     { ATA_PDC20620,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20620" },
162     { ATA_PDC20621,  0, PR_MIO, PR_SX4X,  ATA_UDMA5, "PDC20621" },
163     { ATA_PDC20622,  0, PR_MIO, PR_SX4X,  ATA_SA150, "PDC20622" },
164     { ATA_PDC40518,  0, PR_MIO, PR_SATA2, ATA_SA150, "PDC40518" },
165     { ATA_PDC40519,  0, PR_MIO, PR_SATA2, ATA_SA150, "PDC40519" },
166     { ATA_PDC40718,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40718" },
167     { ATA_PDC40719,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40719" },
168     { ATA_PDC40779,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40779" },
169     { 0, 0, 0, 0, 0, 0}};
170    char buffer[64];
171    uintptr_t devid = 0;
172
173    if (pci_get_vendor(dev) != ATA_PROMISE_ID)
174	return ENXIO;
175
176    if (!(idx = ata_match_chip(dev, ids)))
177	return ENXIO;
178
179    /* if we are on a SuperTrak SX6000 dont attach */
180    if ((idx->cfg2 & PR_SX6K) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
181	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
182		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
183	devid == ATA_I960RM)
184	return ENXIO;
185
186    strcpy(buffer, "Promise ");
187    strcat(buffer, idx->text);
188
189    /* if we are on a FastTrak TX4, adjust the interrupt resource */
190    if ((idx->cfg2 & PR_TX4) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
191	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
192		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
193	((devid == ATA_DEC_21150) || (devid == ATA_DEC_21150_1))) {
194	static rman_res_t start = 0, end = 0;
195
196	if (pci_get_slot(dev) == 1) {
197	    bus_get_resource(dev, SYS_RES_IRQ, 0, &start, &end);
198	    strcat(buffer, " (channel 0+1)");
199	}
200	else if (pci_get_slot(dev) == 2 && start && end) {
201	    bus_set_resource(dev, SYS_RES_IRQ, 0, start, end);
202	    strcat(buffer, " (channel 2+3)");
203	}
204	else {
205	    start = end = 0;
206	}
207    }
208    sprintf(buffer, "%s %s controller", buffer, ata_mode2str(idx->max_dma));
209    device_set_desc_copy(dev, buffer);
210    ctlr->chip = idx;
211    ctlr->chipinit = ata_promise_chipinit;
212    return (BUS_PROBE_LOW_PRIORITY);
213}
214
215static int
216ata_promise_chipinit(device_t dev)
217{
218    struct ata_pci_controller *ctlr = device_get_softc(dev);
219    int stat_reg;
220
221    if (ata_setup_interrupt(dev, ata_generic_intr))
222	return ENXIO;
223
224    switch  (ctlr->chip->cfg1) {
225    case PR_NEW:
226	/* setup clocks */
227	ATA_OUTB(ctlr->r_res1, 0x11, ATA_INB(ctlr->r_res1, 0x11) | 0x0a);
228	/* FALLTHROUGH */
229
230    case PR_OLD:
231	/* enable burst mode */
232	ATA_OUTB(ctlr->r_res1, 0x1f, ATA_INB(ctlr->r_res1, 0x1f) | 0x01);
233	ctlr->ch_attach = ata_promise_ch_attach;
234	ctlr->ch_detach = ata_pci_ch_detach;
235	ctlr->setmode = ata_promise_setmode;
236	return 0;
237
238    case PR_TX:
239	ctlr->ch_attach = ata_promise_tx2_ch_attach;
240	ctlr->ch_detach = ata_pci_ch_detach;
241	ctlr->setmode = ata_promise_setmode;
242	return 0;
243
244    case PR_MIO:
245	ctlr->r_type1 = SYS_RES_MEMORY;
246	ctlr->r_rid1 = PCIR_BAR(4);
247	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
248						    &ctlr->r_rid1, RF_ACTIVE)))
249	    goto failnfree;
250
251#ifdef __sparc64__
252	if (ctlr->chip->cfg2 == PR_SX4X &&
253	    !bus_space_map(rman_get_bustag(ctlr->r_res1),
254	    rman_get_bushandle(ctlr->r_res1), rman_get_size(ctlr->r_res1),
255	    BUS_SPACE_MAP_LINEAR, NULL))
256		goto failnfree;
257#endif
258
259	ctlr->r_type2 = SYS_RES_MEMORY;
260	ctlr->r_rid2 = PCIR_BAR(3);
261	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
262						    &ctlr->r_rid2, RF_ACTIVE)))
263	    goto failnfree;
264
265	if (ctlr->chip->cfg2 == PR_SX4X) {
266	    struct ata_promise_sx4 *hpkt;
267	    u_int32_t dimm = ATA_INL(ctlr->r_res2, 0x000c0080);
268
269	    if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
270		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
271			       ata_promise_sx4_intr, ctlr, &ctlr->handle)) {
272		device_printf(dev, "unable to setup interrupt\n");
273		goto failnfree;
274	    }
275
276	    /* print info about cache memory */
277	    device_printf(dev, "DIMM size %dMB @ 0x%08x%s\n",
278			  (((dimm >> 16) & 0xff)-((dimm >> 24) & 0xff)+1) << 4,
279			  ((dimm >> 24) & 0xff),
280			  ATA_INL(ctlr->r_res2, 0x000c0088) & (1<<16) ?
281			  " ECC enabled" : "" );
282
283	    /* adjust cache memory parameters */
284	    ATA_OUTL(ctlr->r_res2, 0x000c000c,
285		     (ATA_INL(ctlr->r_res2, 0x000c000c) & 0xffff0000));
286
287	    /* setup host packet controls */
288	    hpkt = malloc(sizeof(struct ata_promise_sx4),
289			  M_ATAPCI, M_NOWAIT | M_ZERO);
290	    if (hpkt == NULL) {
291		device_printf(dev, "Cannot allocate HPKT\n");
292		goto failnfree;
293	    }
294	    mtx_init(&hpkt->mtx, "ATA promise HPKT lock", NULL, MTX_DEF);
295	    TAILQ_INIT(&hpkt->queue);
296	    hpkt->busy = 0;
297	    ctlr->chipset_data = hpkt;
298	    ctlr->ch_attach = ata_promise_mio_ch_attach;
299	    ctlr->ch_detach = ata_promise_mio_ch_detach;
300	    ctlr->reset = ata_promise_mio_reset;
301	    ctlr->setmode = ata_promise_setmode;
302	    ctlr->channels = 4;
303	    return 0;
304	}
305
306	/* mio type controllers need an interrupt intercept */
307	if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
308	    bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
309			       ata_promise_mio_intr, ctlr, &ctlr->handle)) {
310		device_printf(dev, "unable to setup interrupt\n");
311		goto failnfree;
312	}
313
314	switch (ctlr->chip->cfg2) {
315	case PR_PATA:
316	    ctlr->channels = ((ATA_INL(ctlr->r_res2, 0x48) & 0x01) > 0) +
317			     ((ATA_INL(ctlr->r_res2, 0x48) & 0x02) > 0) + 2;
318	    goto sata150;
319	case PR_CMBO:
320	    ctlr->channels = 3;
321	    goto sata150;
322	case PR_SATA:
323	    ctlr->channels = 4;
324sata150:
325	    stat_reg = 0x6c;
326	    break;
327
328	case PR_CMBO2:
329	    ctlr->channels = 3;
330	    goto sataii;
331	case PR_SATA2:
332	default:
333	    ctlr->channels = 4;
334sataii:
335	    stat_reg = 0x60;
336	    break;
337	}
338
339	/* prime fake interrupt register */
340	ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
341
342	/* clear SATA status and unmask interrupts */
343	ATA_OUTL(ctlr->r_res2, stat_reg, 0x000000ff);
344
345	/* enable "long burst length" on gen2 chips */
346	if ((ctlr->chip->cfg2 == PR_SATA2) || (ctlr->chip->cfg2 == PR_CMBO2))
347	    ATA_OUTL(ctlr->r_res2, 0x44, ATA_INL(ctlr->r_res2, 0x44) | 0x2000);
348
349	ctlr->ch_attach = ata_promise_mio_ch_attach;
350	ctlr->ch_detach = ata_promise_mio_ch_detach;
351	ctlr->reset = ata_promise_mio_reset;
352	ctlr->setmode = ata_promise_mio_setmode;
353	ctlr->getrev = ata_promise_mio_getrev;
354
355	return 0;
356    }
357
358failnfree:
359    if (ctlr->r_res2)
360	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
361    if (ctlr->r_res1)
362	bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
363    return ENXIO;
364}
365
366static int
367ata_promise_ch_attach(device_t dev)
368{
369    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
370    struct ata_channel *ch = device_get_softc(dev);
371
372    if (ata_pci_ch_attach(dev))
373	return ENXIO;
374
375    if (ctlr->chip->cfg1 == PR_NEW) {
376        ch->dma.start = ata_promise_dmastart;
377        ch->dma.stop = ata_promise_dmastop;
378        ch->dma.reset = ata_promise_dmareset;
379    }
380
381    ch->hw.status = ata_promise_status;
382    ch->flags |= ATA_NO_ATAPI_DMA;
383    ch->flags |= ATA_CHECKS_CABLE;
384    return 0;
385}
386
387static int
388ata_promise_status(device_t dev)
389{
390    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
391    struct ata_channel *ch = device_get_softc(dev);
392
393    if (ATA_INL(ctlr->r_res1, 0x1c) & (ch->unit ? 0x00004000 : 0x00000400)) {
394	return ata_pci_status(dev);
395    }
396    return 0;
397}
398
399static int
400ata_promise_dmastart(struct ata_request *request)
401{
402    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
403    struct ata_channel *ch = device_get_softc(request->parent);
404
405    if (request->flags & ATA_R_48BIT) {
406	ATA_OUTB(ctlr->r_res1, 0x11,
407		 ATA_INB(ctlr->r_res1, 0x11) | (ch->unit ? 0x08 : 0x02));
408	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20,
409		 ((request->flags & ATA_R_READ) ? 0x05000000 : 0x06000000) |
410		 (request->bytecount >> 1));
411    }
412    ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
413		 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
414    ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
415    ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
416		 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0) |
417		 ATA_BMCMD_START_STOP);
418    ch->dma.flags |= ATA_DMA_ACTIVE;
419    return 0;
420}
421
422static int
423ata_promise_dmastop(struct ata_request *request)
424{
425    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
426    struct ata_channel *ch = device_get_softc(request->parent);
427    int error;
428
429    if (request->flags & ATA_R_48BIT) {
430	ATA_OUTB(ctlr->r_res1, 0x11,
431		 ATA_INB(ctlr->r_res1, 0x11) & ~(ch->unit ? 0x08 : 0x02));
432	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20, 0);
433    }
434    error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT);
435    ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
436		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
437    ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
438    ch->dma.flags &= ~ATA_DMA_ACTIVE;
439    return error;
440}
441
442static void
443ata_promise_dmareset(device_t dev)
444{
445    struct ata_channel *ch = device_get_softc(dev);
446
447    ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
448		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
449    ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
450    ch->flags &= ~ATA_DMA_ACTIVE;
451}
452
453static int
454ata_promise_setmode(device_t dev, int target, int mode)
455{
456    device_t parent = device_get_parent(dev);
457    struct ata_pci_controller *ctlr = device_get_softc(parent);
458    struct ata_channel *ch = device_get_softc(dev);
459    int devno = (ch->unit << 1) + target;
460    static const uint32_t timings[][2] = {
461    /*    PR_OLD      PR_NEW               mode */
462	{ 0x004ff329, 0x004fff2f },     /* PIO 0 */
463	{ 0x004fec25, 0x004ff82a },     /* PIO 1 */
464	{ 0x004fe823, 0x004ff026 },     /* PIO 2 */
465	{ 0x004fe622, 0x004fec24 },     /* PIO 3 */
466	{ 0x004fe421, 0x004fe822 },     /* PIO 4 */
467	{ 0x004567f3, 0x004acef6 },     /* MWDMA 0 */
468	{ 0x004467f3, 0x0048cef6 },     /* MWDMA 1 */
469	{ 0x004367f3, 0x0046cef6 },     /* MWDMA 2 */
470	{ 0x004367f3, 0x0046cef6 },     /* UDMA 0 */
471	{ 0x004247f3, 0x00448ef6 },     /* UDMA 1 */
472	{ 0x004127f3, 0x00436ef6 },     /* UDMA 2 */
473	{ 0,          0x00424ef6 },     /* UDMA 3 */
474	{ 0,          0x004127f3 },     /* UDMA 4 */
475	{ 0,          0x004127f3 }      /* UDMA 5 */
476    };
477
478    mode = min(mode, ctlr->chip->max_dma);
479
480    switch (ctlr->chip->cfg1) {
481    case PR_OLD:
482    case PR_NEW:
483	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
484	    (pci_read_config(parent, 0x50, 2) &
485				 (ch->unit ? 1 << 11 : 1 << 10))) {
486	    ata_print_cable(dev, "controller");
487	    mode = ATA_UDMA2;
488	}
489	break;
490
491    case PR_TX:
492	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
493	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
494	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
495	    ata_print_cable(dev, "controller");
496	    mode = ATA_UDMA2;
497	}
498	break;
499
500    case PR_MIO:
501	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
502	    (ATA_INL(ctlr->r_res2,
503		     (ctlr->chip->cfg2 & PR_SX4X ? 0x000c0260 : 0x0260) +
504		     (ch->unit << 7)) & 0x01000000)) {
505	    ata_print_cable(dev, "controller");
506	    mode = ATA_UDMA2;
507	}
508	break;
509    }
510
511	if (ctlr->chip->cfg1 < PR_TX)
512	    pci_write_config(parent, 0x60 + (devno << 2),
513			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
514	return (mode);
515}
516
517static int
518ata_promise_tx2_ch_attach(device_t dev)
519{
520    struct ata_channel *ch = device_get_softc(dev);
521
522    if (ata_pci_ch_attach(dev))
523	return ENXIO;
524
525    ch->hw.status = ata_promise_tx2_status;
526    ch->flags |= ATA_CHECKS_CABLE;
527    return 0;
528}
529
530static int
531ata_promise_tx2_status(device_t dev)
532{
533    struct ata_channel *ch = device_get_softc(dev);
534
535    ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
536    if (ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x20) {
537	return ata_pci_status(dev);
538    }
539    return 0;
540}
541
542static int
543ata_promise_mio_ch_attach(device_t dev)
544{
545    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
546    struct ata_channel *ch = device_get_softc(dev);
547    int offset = (ctlr->chip->cfg2 & PR_SX4X) ? 0x000c0000 : 0;
548    int i;
549
550    ata_promise_mio_dmainit(dev);
551
552    for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
553	ch->r_io[i].res = ctlr->r_res2;
554	ch->r_io[i].offset = offset + 0x0200 + (i << 2) + (ch->unit << 7);
555    }
556    ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
557    ch->r_io[ATA_CONTROL].offset = offset + 0x0238 + (ch->unit << 7);
558    ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
559    ata_default_registers(dev);
560    if ((ctlr->chip->cfg2 & (PR_SATA | PR_SATA2)) ||
561	((ctlr->chip->cfg2 & (PR_CMBO | PR_CMBO2)) && ch->unit < 2)) {
562	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
563	ch->r_io[ATA_SSTATUS].offset = 0x400 + (ch->unit << 8);
564	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
565	ch->r_io[ATA_SERROR].offset = 0x404 + (ch->unit << 8);
566	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
567	ch->r_io[ATA_SCONTROL].offset = 0x408 + (ch->unit << 8);
568	ch->flags |= ATA_NO_SLAVE;
569	ch->flags |= ATA_SATA;
570    }
571    ch->flags |= ATA_USE_16BIT;
572    ch->flags |= ATA_CHECKS_CABLE;
573
574    ata_generic_hw(dev);
575    if (ctlr->chip->cfg2 & PR_SX4X) {
576	ch->hw.command = ata_promise_sx4_command;
577    }
578    else {
579	ch->hw.command = ata_promise_mio_command;
580	ch->hw.status = ata_promise_mio_status;
581	ch->hw.softreset = ata_promise_mio_softreset;
582	ch->hw.pm_read = ata_promise_mio_pm_read;
583	ch->hw.pm_write = ata_promise_mio_pm_write;
584     }
585    return 0;
586}
587
588static int
589ata_promise_mio_ch_detach(device_t dev)
590{
591
592    ata_dmafini(dev);
593    return (0);
594}
595
596static void
597ata_promise_mio_intr(void *data)
598{
599    struct ata_pci_controller *ctlr = data;
600    struct ata_channel *ch;
601    u_int32_t vector;
602    int unit;
603
604    /*
605     * since reading interrupt status register on early "mio" chips
606     * clears the status bits we cannot read it for each channel later on
607     * in the generic interrupt routine.
608     */
609    vector = ATA_INL(ctlr->r_res2, 0x040);
610    ATA_OUTL(ctlr->r_res2, 0x040, vector);
611    ctlr->chipset_data = (void *)(uintptr_t)vector;
612
613    for (unit = 0; unit < ctlr->channels; unit++) {
614	if ((ch = ctlr->interrupt[unit].argument))
615	    ctlr->interrupt[unit].function(ch);
616    }
617
618    ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
619}
620
621static int
622ata_promise_mio_status(device_t dev)
623{
624    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
625    struct ata_channel *ch = device_get_softc(dev);
626    u_int32_t stat_reg, vector, status;
627
628    switch (ctlr->chip->cfg2) {
629    case PR_PATA:
630    case PR_CMBO:
631    case PR_SATA:
632	stat_reg = 0x6c;
633	break;
634    case PR_CMBO2:
635    case PR_SATA2:
636    default:
637	stat_reg = 0x60;
638	break;
639    }
640
641    /* read and acknowledge interrupt */
642    vector = (uint32_t)(uintptr_t)ctlr->chipset_data;
643
644    /* read and clear interface status */
645    status = ATA_INL(ctlr->r_res2, stat_reg);
646    ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
647
648    /* check for and handle disconnect events */
649    if (status & (0x00000001 << ch->unit)) {
650	if (bootverbose)
651	    device_printf(dev, "DISCONNECT requested\n");
652	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
653    }
654
655    /* check for and handle connect events */
656    if (status & (0x00000010 << ch->unit)) {
657	if (bootverbose)
658	    device_printf(dev, "CONNECT requested\n");
659	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
660    }
661
662    /* do we have any device action ? */
663    return (vector & (1 << (ch->unit + 1)));
664}
665
666static int
667ata_promise_mio_command(struct ata_request *request)
668{
669    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
670    struct ata_channel *ch = device_get_softc(request->parent);
671
672    u_int32_t *wordp = (u_int32_t *)ch->dma.work;
673
674    ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
675
676    if ((ctlr->chip->cfg2 == PR_SATA2) ||
677        ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
678	/* set portmultiplier port */
679	ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), request->unit & 0x0f);
680    }
681
682    /* XXX SOS add ATAPI commands support later */
683    switch (request->u.ata.command) {
684    default:
685	return ata_generic_command(request);
686
687    case ATA_READ_DMA:
688    case ATA_READ_DMA48:
689	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
690	break;
691
692    case ATA_WRITE_DMA:
693    case ATA_WRITE_DMA48:
694	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
695	break;
696    }
697    wordp[1] = htole32(request->dma->sg_bus);
698    wordp[2] = 0;
699    ata_promise_apkt((u_int8_t*)wordp, request);
700
701    ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma.work_bus);
702    return 0;
703}
704
705static void
706ata_promise_mio_reset(device_t dev)
707{
708    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
709    struct ata_channel *ch = device_get_softc(dev);
710    struct ata_promise_sx4 *hpktp;
711
712    switch (ctlr->chip->cfg2) {
713    case PR_SX4X:
714
715	/* softreset channel ATA module */
716	hpktp = ctlr->chipset_data;
717	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
718	ata_udelay(1000);
719	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
720		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
721		  ~0x00003f9f) | (ch->unit + 1));
722
723	/* softreset HOST module */ /* XXX SOS what about other outstandings */
724	mtx_lock(&hpktp->mtx);
725	ATA_OUTL(ctlr->r_res2, 0xc012c,
726		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
727	DELAY(10);
728	ATA_OUTL(ctlr->r_res2, 0xc012c,
729		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
730	hpktp->busy = 0;
731	mtx_unlock(&hpktp->mtx);
732	ata_generic_reset(dev);
733	break;
734
735    case PR_PATA:
736    case PR_CMBO:
737    case PR_SATA:
738	if ((ctlr->chip->cfg2 == PR_SATA) ||
739	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
740
741	    /* mask plug/unplug intr */
742	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
743	}
744
745	/* softreset channels ATA module */
746	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
747	ata_udelay(10000);
748	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
749		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
750		  ~0x00003f9f) | (ch->unit + 1));
751
752	if ((ctlr->chip->cfg2 == PR_SATA) ||
753	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
754
755	    if (ata_sata_phy_reset(dev, -1, 1))
756		ata_generic_reset(dev);
757	    else
758		ch->devices = 0;
759
760	    /* reset and enable plug/unplug intr */
761	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
762	}
763	else
764	    ata_generic_reset(dev);
765	break;
766
767    case PR_CMBO2:
768    case PR_SATA2:
769	if ((ctlr->chip->cfg2 == PR_SATA2) ||
770	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
771	    /* set portmultiplier port */
772	    //ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
773
774	    /* mask plug/unplug intr */
775	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
776	}
777
778	/* softreset channels ATA module */
779	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
780	ata_udelay(10000);
781	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
782		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
783		  ~0x00003f9f) | (ch->unit + 1));
784
785	if ((ctlr->chip->cfg2 == PR_SATA2) ||
786	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
787
788	    /* set PHY mode to "improved" */
789	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
790		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
791		     ~0x00000003) | 0x00000001);
792
793	    if (ata_sata_phy_reset(dev, -1, 1)) {
794		u_int32_t signature = ch->hw.softreset(dev, ATA_PM);
795
796		if (bootverbose)
797        	    device_printf(dev, "SIGNATURE: %08x\n", signature);
798
799		switch (signature >> 16) {
800		case 0x0000:
801		    ch->devices = ATA_ATA_MASTER;
802		    break;
803		case 0x9669:
804		    ch->devices = ATA_PORTMULTIPLIER;
805		    ata_pm_identify(dev);
806		    break;
807		case 0xeb14:
808		    ch->devices = ATA_ATAPI_MASTER;
809		    break;
810		default: /* SOS XXX */
811		    if (bootverbose)
812			device_printf(dev,
813				      "No signature, assuming disk device\n");
814		    ch->devices = ATA_ATA_MASTER;
815		}
816		if (bootverbose)
817		    device_printf(dev, "promise_mio_reset devices=%08x\n",
818		    		  ch->devices);
819
820	    } else
821		ch->devices = 0;
822
823	    /* reset and enable plug/unplug intr */
824	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
825
826	    ///* set portmultiplier port */
827	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
828	}
829	else
830	    ata_generic_reset(dev);
831	break;
832
833    }
834}
835
836static int
837ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result)
838{
839    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
840    struct ata_channel *ch = device_get_softc(dev);
841    int timeout = 0;
842
843    if (port < 0) {
844	*result = ATA_IDX_INL(ch, reg);
845	return (0);
846    }
847    if (port < ATA_PM) {
848	switch (reg) {
849	case ATA_SSTATUS:
850	    reg = 0;
851	    break;
852	case ATA_SERROR:
853	    reg = 1;
854	    break;
855	case ATA_SCONTROL:
856	    reg = 2;
857	    break;
858	default:
859	    return (EINVAL);
860	}
861    }
862    /* set portmultiplier port */
863    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
864
865    ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
866    ATA_IDX_OUTB(ch, ATA_DRIVE, port);
867
868    ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_READ_PM);
869
870    while (timeout < 1000000) {
871	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
872	if (!(status & ATA_S_BUSY))
873	    break;
874	timeout += 1000;
875	DELAY(1000);
876    }
877    if (timeout >= 1000000)
878	return ATA_E_ABORT;
879
880    *result = ATA_IDX_INB(ch, ATA_COUNT) |
881	      (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
882	      (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
883	      (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
884    return 0;
885}
886
887static int
888ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t value)
889{
890    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
891    struct ata_channel *ch = device_get_softc(dev);
892    int timeout = 0;
893
894    if (port < 0) {
895	ATA_IDX_OUTL(ch, reg, value);
896	return (0);
897    }
898    if (port < ATA_PM) {
899	switch (reg) {
900	case ATA_SSTATUS:
901	    reg = 0;
902	    break;
903	case ATA_SERROR:
904	    reg = 1;
905	    break;
906	case ATA_SCONTROL:
907	    reg = 2;
908	    break;
909	default:
910	    return (EINVAL);
911	}
912    }
913    /* set portmultiplier port */
914    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
915
916    ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
917    ATA_IDX_OUTB(ch, ATA_DRIVE, port);
918    ATA_IDX_OUTB(ch, ATA_COUNT, value & 0xff);
919    ATA_IDX_OUTB(ch, ATA_SECTOR, (value >> 8) & 0xff);
920    ATA_IDX_OUTB(ch, ATA_CYL_LSB, (value >> 16) & 0xff);
921    ATA_IDX_OUTB(ch, ATA_CYL_MSB, (value >> 24) & 0xff);
922
923    ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_WRITE_PM);
924
925    while (timeout < 1000000) {
926	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
927	if (!(status & ATA_S_BUSY))
928	    break;
929	timeout += 1000;
930	DELAY(1000);
931    }
932    if (timeout >= 1000000)
933	return ATA_E_ABORT;
934
935    return ATA_IDX_INB(ch, ATA_ERROR);
936}
937
938/* must be called with ATA channel locked and state_mtx held */
939static u_int32_t
940ata_promise_mio_softreset(device_t dev, int port)
941{
942    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
943    struct ata_channel *ch = device_get_softc(dev);
944    int timeout;
945
946    /* set portmultiplier port */
947    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), port & 0x0f);
948
949    /* softreset device on this channel */
950    ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | ATA_DEV(ATA_MASTER));
951    DELAY(10);
952    ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS | ATA_A_RESET);
953    ata_udelay(10000);
954    ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS);
955    ata_udelay(150000);
956    ATA_IDX_INB(ch, ATA_ERROR);
957
958    /* wait for BUSY to go inactive */
959    for (timeout = 0; timeout < 100; timeout++) {
960	u_int8_t /* err, */ stat;
961
962	/* err = */ ATA_IDX_INB(ch, ATA_ERROR);
963	stat = ATA_IDX_INB(ch, ATA_STATUS);
964
965	//if (stat == err && timeout > (stat & ATA_S_BUSY ? 100 : 10))
966	    //break;
967
968	if (!(stat & ATA_S_BUSY)) {
969	    //if ((err & 0x7f) == ATA_E_ILI) {
970		return ATA_IDX_INB(ch, ATA_COUNT) |
971		       (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
972		       (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
973		       (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
974	    //}
975	    //else if (stat & 0x0f) {
976		//stat |= ATA_S_BUSY;
977	    //}
978	}
979
980	if (!(stat & ATA_S_BUSY) || (stat == 0xff && timeout > 10))
981	    break;
982	ata_udelay(100000);
983    }
984    return -1;
985}
986
987static void
988ata_promise_mio_dmainit(device_t dev)
989{
990    struct ata_channel *ch = device_get_softc(dev);
991
992    /* note start and stop are not used here */
993    ch->dma.setprd = ata_promise_mio_setprd;
994    ch->dma.max_iosize = 65536;
995    ata_dmainit(dev);
996}
997
998#define MAXLASTSGSIZE (32 * sizeof(u_int32_t))
999static void
1000ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
1001{
1002    struct ata_dmasetprd_args *args = xsc;
1003    struct ata_dma_prdentry *prd = args->dmatab;
1004    int i;
1005
1006    if ((args->error = error))
1007	return;
1008
1009    for (i = 0; i < nsegs; i++) {
1010	prd[i].addr = htole32(segs[i].ds_addr);
1011	prd[i].count = htole32(segs[i].ds_len);
1012    }
1013    if (segs[i - 1].ds_len > MAXLASTSGSIZE) {
1014	//printf("split last SG element of %u\n", segs[i - 1].ds_len);
1015	prd[i - 1].count = htole32(segs[i - 1].ds_len - MAXLASTSGSIZE);
1016	prd[i].count = htole32(MAXLASTSGSIZE);
1017	prd[i].addr = htole32(segs[i - 1].ds_addr +
1018			      (segs[i - 1].ds_len - MAXLASTSGSIZE));
1019	nsegs++;
1020	i++;
1021    }
1022    prd[i - 1].count |= htole32(ATA_DMA_EOT);
1023    KASSERT(nsegs <= ATA_DMA_ENTRIES, ("too many DMA segment entries\n"));
1024    args->nsegs = nsegs;
1025}
1026
1027static int
1028ata_promise_mio_setmode(device_t dev, int target, int mode)
1029{
1030        struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1031        struct ata_channel *ch = device_get_softc(dev);
1032
1033        if ( (ctlr->chip->cfg2 == PR_SATA) ||
1034    	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1035	     (ctlr->chip->cfg2 == PR_SATA2) ||
1036	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1037		mode = ata_sata_setmode(dev, target, mode);
1038	else
1039		mode = ata_promise_setmode(dev, target, mode);
1040	return (mode);
1041}
1042
1043static int
1044ata_promise_mio_getrev(device_t dev, int target)
1045{
1046        struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1047        struct ata_channel *ch = device_get_softc(dev);
1048
1049        if ( (ctlr->chip->cfg2 == PR_SATA) ||
1050    	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1051	     (ctlr->chip->cfg2 == PR_SATA2) ||
1052	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1053		return (ata_sata_getrev(dev, target));
1054	else
1055		return (0);
1056}
1057
1058static void
1059ata_promise_sx4_intr(void *data)
1060{
1061    struct ata_pci_controller *ctlr = data;
1062    struct ata_channel *ch;
1063    u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
1064    int unit;
1065
1066    for (unit = 0; unit < ctlr->channels; unit++) {
1067	if (vector & (1 << (unit + 1)))
1068	    if ((ch = ctlr->interrupt[unit].argument))
1069		ctlr->interrupt[unit].function(ch);
1070	if (vector & (1 << (unit + 5)))
1071	    if ((ch = ctlr->interrupt[unit].argument))
1072		ata_promise_queue_hpkt(ctlr,
1073				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1074					       ATA_PDC_HPKT_OFFSET));
1075	if (vector & (1 << (unit + 9))) {
1076	    ata_promise_next_hpkt(ctlr);
1077	    if ((ch = ctlr->interrupt[unit].argument))
1078		ctlr->interrupt[unit].function(ch);
1079	}
1080	if (vector & (1 << (unit + 13))) {
1081	    ata_promise_next_hpkt(ctlr);
1082	    if ((ch = ctlr->interrupt[unit].argument))
1083		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1084			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1085			 ATA_PDC_APKT_OFFSET));
1086	}
1087    }
1088}
1089
1090static int
1091ata_promise_sx4_command(struct ata_request *request)
1092{
1093    device_t gparent = device_get_parent(request->parent);
1094    struct ata_pci_controller *ctlr = device_get_softc(gparent);
1095    struct ata_channel *ch = device_get_softc(request->parent);
1096    struct ata_dma_prdentry *prd;
1097    caddr_t window = rman_get_virtual(ctlr->r_res1);
1098    u_int32_t *wordp;
1099    int i, idx, length = 0;
1100
1101    /* XXX SOS add ATAPI commands support later */
1102    switch (request->u.ata.command) {
1103
1104    default:
1105	return -1;
1106
1107    case ATA_ATA_IDENTIFY:
1108    case ATA_READ:
1109    case ATA_READ48:
1110    case ATA_READ_MUL:
1111    case ATA_READ_MUL48:
1112    case ATA_WRITE:
1113    case ATA_WRITE48:
1114    case ATA_WRITE_MUL:
1115    case ATA_WRITE_MUL48:
1116	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1117	return ata_generic_command(request);
1118
1119    case ATA_SETFEATURES:
1120    case ATA_FLUSHCACHE:
1121    case ATA_FLUSHCACHE48:
1122    case ATA_SLEEP:
1123    case ATA_SET_MULTI:
1124	wordp = (u_int32_t *)
1125	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1126	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
1127	wordp[1] = 0;
1128	wordp[2] = 0;
1129	ata_promise_apkt((u_int8_t *)wordp, request);
1130	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1131	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1132	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1133		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
1134	return 0;
1135
1136    case ATA_READ_DMA:
1137    case ATA_READ_DMA48:
1138    case ATA_WRITE_DMA:
1139    case ATA_WRITE_DMA48:
1140	prd = request->dma->sg;
1141	wordp = (u_int32_t *)
1142	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
1143	i = idx = 0;
1144	do {
1145	    wordp[idx++] = prd[i].addr;
1146	    wordp[idx++] = prd[i].count;
1147	    length += (prd[i].count & ~ATA_DMA_EOT);
1148	} while (!(prd[i++].count & ATA_DMA_EOT));
1149
1150	wordp = (u_int32_t *)
1151	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
1152	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1153	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1154
1155	wordp = (u_int32_t *)
1156	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
1157	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1158	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1159
1160	wordp = (u_int32_t *)
1161	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
1162	if (request->flags & ATA_R_READ)
1163	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
1164	if (request->flags & ATA_R_WRITE)
1165	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
1166	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
1167	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
1168	wordp[3] = 0;
1169
1170	wordp = (u_int32_t *)
1171	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1172	if (request->flags & ATA_R_READ)
1173	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
1174	if (request->flags & ATA_R_WRITE)
1175	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
1176	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
1177	wordp[2] = 0;
1178	ata_promise_apkt((u_int8_t *)wordp, request);
1179	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1180
1181	if (request->flags & ATA_R_READ) {
1182	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
1183	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
1184	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1185		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
1186	}
1187	if (request->flags & ATA_R_WRITE) {
1188	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
1189	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
1190	    ata_promise_queue_hpkt(ctlr,
1191		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
1192	}
1193	return 0;
1194    }
1195}
1196
1197static int
1198ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
1199{
1200    int i = 12;
1201
1202    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
1203    bytep[i++] = ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit);
1204    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
1205    bytep[i++] = ATA_A_4BIT;
1206
1207    if (request->flags & ATA_R_48BIT) {
1208	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1209	bytep[i++] = request->u.ata.feature >> 8;
1210	bytep[i++] = request->u.ata.feature;
1211	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
1212	bytep[i++] = request->u.ata.count >> 8;
1213	bytep[i++] = request->u.ata.count;
1214	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1215	bytep[i++] = request->u.ata.lba >> 24;
1216	bytep[i++] = request->u.ata.lba;
1217	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1218	bytep[i++] = request->u.ata.lba >> 32;
1219	bytep[i++] = request->u.ata.lba >> 8;
1220	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1221	bytep[i++] = request->u.ata.lba >> 40;
1222	bytep[i++] = request->u.ata.lba >> 16;
1223	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1224	bytep[i++] = ATA_D_LBA | ATA_DEV(request->unit);
1225    }
1226    else {
1227	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1228	bytep[i++] = request->u.ata.feature;
1229	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
1230	bytep[i++] = request->u.ata.count;
1231	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1232	bytep[i++] = request->u.ata.lba;
1233	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1234	bytep[i++] = request->u.ata.lba >> 8;
1235	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1236	bytep[i++] = request->u.ata.lba >> 16;
1237	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1238	bytep[i++] = ATA_D_LBA | ATA_D_IBM | ATA_DEV(request->unit) |
1239		     ((request->u.ata.lba >> 24)&0xf);
1240    }
1241    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
1242    bytep[i++] = request->u.ata.command;
1243    return i;
1244}
1245
1246static void
1247ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
1248{
1249    struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1250
1251    mtx_lock(&hpktp->mtx);
1252    if (hpktp->busy) {
1253	struct host_packet *hp =
1254	    malloc(sizeof(struct host_packet), M_TEMP, M_NOWAIT | M_ZERO);
1255	hp->addr = hpkt;
1256	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
1257    }
1258    else {
1259	hpktp->busy = 1;
1260	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
1261    }
1262    mtx_unlock(&hpktp->mtx);
1263}
1264
1265static void
1266ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
1267{
1268    struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1269    struct host_packet *hp;
1270
1271    mtx_lock(&hpktp->mtx);
1272    if ((hp = TAILQ_FIRST(&hpktp->queue))) {
1273	TAILQ_REMOVE(&hpktp->queue, hp, chain);
1274	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
1275	free(hp, M_TEMP);
1276    }
1277    else
1278	hpktp->busy = 0;
1279    mtx_unlock(&hpktp->mtx);
1280}
1281
1282ATA_DECLARE_DRIVER(ata_promise);
1283