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