ata-promise.c revision 209872
1/*-
2 * Copyright (c) 1998 - 2008 S�ren Schmidt <sos@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer,
10 *    without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/dev/ata/chipsets/ata-promise.c 209872 2010-07-10 13:46:14Z mav $");
29
30#include "opt_ata.h"
31#include <sys/param.h>
32#include <sys/module.h>
33#include <sys/systm.h>
34#include <sys/kernel.h>
35#include <sys/ata.h>
36#include <sys/bus.h>
37#include <sys/endian.h>
38#include <sys/malloc.h>
39#include <sys/lock.h>
40#include <sys/mutex.h>
41#include <sys/sema.h>
42#include <sys/taskqueue.h>
43#include <vm/uma.h>
44#include <machine/stdarg.h>
45#include <machine/resource.h>
46#include <machine/bus.h>
47#include <sys/rman.h>
48#include <dev/pci/pcivar.h>
49#include <dev/pci/pcireg.h>
50#include <dev/ata/ata-all.h>
51#include <dev/ata/ata-pci.h>
52#include <ata_if.h>
53
54/* local prototypes */
55static int ata_promise_chipinit(device_t dev);
56static int ata_promise_ch_attach(device_t dev);
57static int ata_promise_status(device_t dev);
58static int ata_promise_dmastart(struct ata_request *request);
59static int ata_promise_dmastop(struct ata_request *request);
60static void ata_promise_dmareset(device_t dev);
61static int ata_promise_setmode(device_t dev, int target, int mode);
62static int ata_promise_tx2_ch_attach(device_t dev);
63static int ata_promise_tx2_status(device_t dev);
64static int ata_promise_mio_ch_attach(device_t dev);
65static int ata_promise_mio_ch_detach(device_t dev);
66static void ata_promise_mio_intr(void *data);
67static int ata_promise_mio_status(device_t dev);
68static int ata_promise_mio_command(struct ata_request *request);
69static void ata_promise_mio_reset(device_t dev);
70static int ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result);
71static int ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t result);
72static u_int32_t ata_promise_mio_softreset(device_t dev, int port);
73static void ata_promise_mio_dmainit(device_t dev);
74static void ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error);
75static int ata_promise_mio_setmode(device_t dev, int target, int mode);
76static int ata_promise_mio_getrev(device_t dev, int target);
77static void ata_promise_sx4_intr(void *data);
78static int ata_promise_sx4_command(struct ata_request *request);
79static int ata_promise_apkt(u_int8_t *bytep, struct ata_request *request);
80static void ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt);
81static void ata_promise_next_hpkt(struct ata_pci_controller *ctlr);
82
83/* misc defines */
84#define PR_OLD		0
85#define PR_NEW		1
86#define PR_TX		2
87#define PR_MIO		3
88#define PR_TX4		0x01
89#define PR_SX4X		0x02
90#define PR_SX6K		0x04
91#define PR_PATA		0x08
92#define PR_CMBO		0x10
93#define PR_CMBO2	0x20
94#define PR_SATA		0x40
95#define PR_SATA2	0x80
96
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    struct ata_chip_id *idx;
134    static 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 long 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_DEFAULT);
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	ctlr->r_type2 = SYS_RES_MEMORY;
254	ctlr->r_rid2 = PCIR_BAR(3);
255	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
256						    &ctlr->r_rid2, RF_ACTIVE)))
257	    goto failnfree;
258
259	if (ctlr->chip->cfg2 == PR_SX4X) {
260	    struct ata_promise_sx4 *hpkt;
261	    u_int32_t dimm = ATA_INL(ctlr->r_res2, 0x000c0080);
262
263	    if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
264		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
265			       ata_promise_sx4_intr, ctlr, &ctlr->handle)) {
266		device_printf(dev, "unable to setup interrupt\n");
267		goto failnfree;
268	    }
269
270	    /* print info about cache memory */
271	    device_printf(dev, "DIMM size %dMB @ 0x%08x%s\n",
272			  (((dimm >> 16) & 0xff)-((dimm >> 24) & 0xff)+1) << 4,
273			  ((dimm >> 24) & 0xff),
274			  ATA_INL(ctlr->r_res2, 0x000c0088) & (1<<16) ?
275			  " ECC enabled" : "" );
276
277	    /* adjust cache memory parameters */
278	    ATA_OUTL(ctlr->r_res2, 0x000c000c,
279		     (ATA_INL(ctlr->r_res2, 0x000c000c) & 0xffff0000));
280
281	    /* setup host packet controls */
282	    hpkt = malloc(sizeof(struct ata_promise_sx4),
283			  M_TEMP, M_NOWAIT | M_ZERO);
284	    mtx_init(&hpkt->mtx, "ATA promise HPKT lock", NULL, MTX_DEF);
285	    TAILQ_INIT(&hpkt->queue);
286	    hpkt->busy = 0;
287	    ctlr->chipset_data = hpkt;
288	    ctlr->ch_attach = ata_promise_mio_ch_attach;
289	    ctlr->ch_detach = ata_promise_mio_ch_detach;
290	    ctlr->reset = ata_promise_mio_reset;
291	    ctlr->setmode = ata_promise_setmode;
292	    ctlr->channels = 4;
293	    return 0;
294	}
295
296	/* mio type controllers need an interrupt intercept */
297	if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
298	    bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
299			       ata_promise_mio_intr, ctlr, &ctlr->handle)) {
300		device_printf(dev, "unable to setup interrupt\n");
301		goto failnfree;
302	}
303
304	switch (ctlr->chip->cfg2) {
305	case PR_PATA:
306	    ctlr->channels = ((ATA_INL(ctlr->r_res2, 0x48) & 0x01) > 0) +
307			     ((ATA_INL(ctlr->r_res2, 0x48) & 0x02) > 0) + 2;
308	    goto sata150;
309	case PR_CMBO:
310	    ctlr->channels = 3;
311	    goto sata150;
312	case PR_SATA:
313	    ctlr->channels = 4;
314sata150:
315	    stat_reg = 0x6c;
316	    break;
317
318	case PR_CMBO2:
319	    ctlr->channels = 3;
320	    goto sataii;
321	case PR_SATA2:
322	default:
323	    ctlr->channels = 4;
324sataii:
325	    stat_reg = 0x60;
326	    break;
327	}
328
329	/* prime fake interrupt register */
330	ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
331
332	/* clear SATA status and unmask interrupts */
333	ATA_OUTL(ctlr->r_res2, stat_reg, 0x000000ff);
334
335	/* enable "long burst length" on gen2 chips */
336	if ((ctlr->chip->cfg2 == PR_SATA2) || (ctlr->chip->cfg2 == PR_CMBO2))
337	    ATA_OUTL(ctlr->r_res2, 0x44, ATA_INL(ctlr->r_res2, 0x44) | 0x2000);
338
339	ctlr->ch_attach = ata_promise_mio_ch_attach;
340	ctlr->ch_detach = ata_promise_mio_ch_detach;
341	ctlr->reset = ata_promise_mio_reset;
342	ctlr->setmode = ata_promise_mio_setmode;
343	ctlr->getrev = ata_promise_mio_getrev;
344
345	return 0;
346    }
347
348failnfree:
349    if (ctlr->r_res2)
350	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
351    if (ctlr->r_res1)
352	bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
353    return ENXIO;
354}
355
356static int
357ata_promise_ch_attach(device_t dev)
358{
359    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
360    struct ata_channel *ch = device_get_softc(dev);
361
362    if (ata_pci_ch_attach(dev))
363	return ENXIO;
364
365    if (ctlr->chip->cfg1 == PR_NEW) {
366        ch->dma.start = ata_promise_dmastart;
367        ch->dma.stop = ata_promise_dmastop;
368        ch->dma.reset = ata_promise_dmareset;
369    }
370
371    ch->hw.status = ata_promise_status;
372    ch->flags |= ATA_NO_ATAPI_DMA;
373    ch->flags |= ATA_CHECKS_CABLE;
374    return 0;
375}
376
377static int
378ata_promise_status(device_t dev)
379{
380    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
381    struct ata_channel *ch = device_get_softc(dev);
382
383    if (ATA_INL(ctlr->r_res1, 0x1c) & (ch->unit ? 0x00004000 : 0x00000400)) {
384	return ata_pci_status(dev);
385    }
386    return 0;
387}
388
389static int
390ata_promise_dmastart(struct ata_request *request)
391{
392    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
393    struct ata_channel *ch = device_get_softc(request->parent);
394
395    if (request->flags & ATA_R_48BIT) {
396	ATA_OUTB(ctlr->r_res1, 0x11,
397		 ATA_INB(ctlr->r_res1, 0x11) | (ch->unit ? 0x08 : 0x02));
398	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20,
399		 ((request->flags & ATA_R_READ) ? 0x05000000 : 0x06000000) |
400		 (request->bytecount >> 1));
401    }
402    ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
403		 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
404    ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
405    ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
406		 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0) |
407		 ATA_BMCMD_START_STOP);
408    ch->dma.flags |= ATA_DMA_ACTIVE;
409    return 0;
410}
411
412static int
413ata_promise_dmastop(struct ata_request *request)
414{
415    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
416    struct ata_channel *ch = device_get_softc(request->parent);
417    int error;
418
419    if (request->flags & ATA_R_48BIT) {
420	ATA_OUTB(ctlr->r_res1, 0x11,
421		 ATA_INB(ctlr->r_res1, 0x11) & ~(ch->unit ? 0x08 : 0x02));
422	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20, 0);
423    }
424    error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT);
425    ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
426		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
427    ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
428    ch->dma.flags &= ~ATA_DMA_ACTIVE;
429    return error;
430}
431
432static void
433ata_promise_dmareset(device_t dev)
434{
435    struct ata_channel *ch = device_get_softc(dev);
436
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->flags &= ~ATA_DMA_ACTIVE;
441}
442
443static int
444ata_promise_setmode(device_t dev, int target, int mode)
445{
446    device_t parent = device_get_parent(dev);
447    struct ata_pci_controller *ctlr = device_get_softc(parent);
448    struct ata_channel *ch = device_get_softc(dev);
449    int devno = (ch->unit << 1) + target;
450    u_int32_t timings[][2] = {
451    /*    PR_OLD      PR_NEW               mode */
452	{ 0x004ff329, 0x004fff2f },     /* PIO 0 */
453	{ 0x004fec25, 0x004ff82a },     /* PIO 1 */
454	{ 0x004fe823, 0x004ff026 },     /* PIO 2 */
455	{ 0x004fe622, 0x004fec24 },     /* PIO 3 */
456	{ 0x004fe421, 0x004fe822 },     /* PIO 4 */
457	{ 0x004567f3, 0x004acef6 },     /* MWDMA 0 */
458	{ 0x004467f3, 0x0048cef6 },     /* MWDMA 1 */
459	{ 0x004367f3, 0x0046cef6 },     /* MWDMA 2 */
460	{ 0x004367f3, 0x0046cef6 },     /* UDMA 0 */
461	{ 0x004247f3, 0x00448ef6 },     /* UDMA 1 */
462	{ 0x004127f3, 0x00436ef6 },     /* UDMA 2 */
463	{ 0,          0x00424ef6 },     /* UDMA 3 */
464	{ 0,          0x004127f3 },     /* UDMA 4 */
465	{ 0,          0x004127f3 }      /* UDMA 5 */
466    };
467
468    mode = min(mode, ctlr->chip->max_dma);
469
470    switch (ctlr->chip->cfg1) {
471    case PR_OLD:
472    case PR_NEW:
473	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
474	    (pci_read_config(parent, 0x50, 2) &
475				 (ch->unit ? 1 << 11 : 1 << 10))) {
476	    ata_print_cable(dev, "controller");
477	    mode = ATA_UDMA2;
478	}
479	break;
480
481    case PR_TX:
482	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
483	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
484	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
485	    ata_print_cable(dev, "controller");
486	    mode = ATA_UDMA2;
487	}
488	break;
489
490    case PR_MIO:
491	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
492	    (ATA_INL(ctlr->r_res2,
493		     (ctlr->chip->cfg2 & PR_SX4X ? 0x000c0260 : 0x0260) +
494		     (ch->unit << 7)) & 0x01000000)) {
495	    ata_print_cable(dev, "controller");
496	    mode = ATA_UDMA2;
497	}
498	break;
499    }
500
501	if (ctlr->chip->cfg1 < PR_TX)
502	    pci_write_config(parent, 0x60 + (devno << 2),
503			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
504	return (mode);
505}
506
507static int
508ata_promise_tx2_ch_attach(device_t dev)
509{
510    struct ata_channel *ch = device_get_softc(dev);
511
512    if (ata_pci_ch_attach(dev))
513	return ENXIO;
514
515    ch->hw.status = ata_promise_tx2_status;
516    ch->flags |= ATA_CHECKS_CABLE;
517    return 0;
518}
519
520static int
521ata_promise_tx2_status(device_t dev)
522{
523    struct ata_channel *ch = device_get_softc(dev);
524
525    ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
526    if (ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x20) {
527	return ata_pci_status(dev);
528    }
529    return 0;
530}
531
532static int
533ata_promise_mio_ch_attach(device_t dev)
534{
535    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
536    struct ata_channel *ch = device_get_softc(dev);
537    int offset = (ctlr->chip->cfg2 & PR_SX4X) ? 0x000c0000 : 0;
538    int i;
539
540    ata_promise_mio_dmainit(dev);
541
542    for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
543	ch->r_io[i].res = ctlr->r_res2;
544	ch->r_io[i].offset = offset + 0x0200 + (i << 2) + (ch->unit << 7);
545    }
546    ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
547    ch->r_io[ATA_CONTROL].offset = offset + 0x0238 + (ch->unit << 7);
548    ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
549    ata_default_registers(dev);
550    if ((ctlr->chip->cfg2 & (PR_SATA | PR_SATA2)) ||
551	((ctlr->chip->cfg2 & (PR_CMBO | PR_CMBO2)) && ch->unit < 2)) {
552	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
553	ch->r_io[ATA_SSTATUS].offset = 0x400 + (ch->unit << 8);
554	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
555	ch->r_io[ATA_SERROR].offset = 0x404 + (ch->unit << 8);
556	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
557	ch->r_io[ATA_SCONTROL].offset = 0x408 + (ch->unit << 8);
558	ch->flags |= ATA_NO_SLAVE;
559	ch->flags |= ATA_SATA;
560    }
561    ch->flags |= ATA_USE_16BIT;
562    ch->flags |= ATA_CHECKS_CABLE;
563
564    ata_generic_hw(dev);
565    if (ctlr->chip->cfg2 & PR_SX4X) {
566	ch->hw.command = ata_promise_sx4_command;
567    }
568    else {
569	ch->hw.command = ata_promise_mio_command;
570	ch->hw.status = ata_promise_mio_status;
571	ch->hw.softreset = ata_promise_mio_softreset;
572	ch->hw.pm_read = ata_promise_mio_pm_read;
573	ch->hw.pm_write = ata_promise_mio_pm_write;
574     }
575    return 0;
576}
577
578static int
579ata_promise_mio_ch_detach(device_t dev)
580{
581
582    ata_dmafini(dev);
583    return (0);
584}
585
586static void
587ata_promise_mio_intr(void *data)
588{
589    struct ata_pci_controller *ctlr = data;
590    struct ata_channel *ch;
591    u_int32_t vector;
592    int unit;
593
594    /*
595     * since reading interrupt status register on early "mio" chips
596     * clears the status bits we cannot read it for each channel later on
597     * in the generic interrupt routine.
598     */
599    vector = ATA_INL(ctlr->r_res2, 0x040);
600    ATA_OUTL(ctlr->r_res2, 0x040, vector);
601    ctlr->chipset_data = (void *)(uintptr_t)vector;
602
603    for (unit = 0; unit < ctlr->channels; unit++) {
604	if ((ch = ctlr->interrupt[unit].argument))
605	    ctlr->interrupt[unit].function(ch);
606    }
607
608    ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
609}
610
611static int
612ata_promise_mio_status(device_t dev)
613{
614    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
615    struct ata_channel *ch = device_get_softc(dev);
616    u_int32_t stat_reg, vector, status;
617
618    switch (ctlr->chip->cfg2) {
619    case PR_PATA:
620    case PR_CMBO:
621    case PR_SATA:
622	stat_reg = 0x6c;
623	break;
624    case PR_CMBO2:
625    case PR_SATA2:
626    default:
627	stat_reg = 0x60;
628	break;
629    }
630
631    /* read and acknowledge interrupt */
632    vector = (uint32_t)(uintptr_t)ctlr->chipset_data;
633
634    /* read and clear interface status */
635    status = ATA_INL(ctlr->r_res2, stat_reg);
636    ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
637
638    /* check for and handle disconnect events */
639    if (status & (0x00000001 << ch->unit)) {
640	if (bootverbose)
641	    device_printf(dev, "DISCONNECT requested\n");
642	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
643    }
644
645    /* check for and handle connect events */
646    if (status & (0x00000010 << ch->unit)) {
647	if (bootverbose)
648	    device_printf(dev, "CONNECT requested\n");
649	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
650    }
651
652    /* do we have any device action ? */
653    return (vector & (1 << (ch->unit + 1)));
654}
655
656static int
657ata_promise_mio_command(struct ata_request *request)
658{
659    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
660    struct ata_channel *ch = device_get_softc(request->parent);
661
662    u_int32_t *wordp = (u_int32_t *)ch->dma.work;
663
664    ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
665
666    if ((ctlr->chip->cfg2 == PR_SATA2) ||
667        ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
668	/* set portmultiplier port */
669	ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), request->unit & 0x0f);
670    }
671
672    /* XXX SOS add ATAPI commands support later */
673    switch (request->u.ata.command) {
674    default:
675	return ata_generic_command(request);
676
677    case ATA_READ_DMA:
678    case ATA_READ_DMA48:
679	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
680	break;
681
682    case ATA_WRITE_DMA:
683    case ATA_WRITE_DMA48:
684	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
685	break;
686    }
687    wordp[1] = htole32(request->dma->sg_bus);
688    wordp[2] = 0;
689    ata_promise_apkt((u_int8_t*)wordp, request);
690
691    ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma.work_bus);
692    return 0;
693}
694
695static void
696ata_promise_mio_reset(device_t dev)
697{
698    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
699    struct ata_channel *ch = device_get_softc(dev);
700    struct ata_promise_sx4 *hpktp;
701
702    switch (ctlr->chip->cfg2) {
703    case PR_SX4X:
704
705	/* softreset channel ATA module */
706	hpktp = ctlr->chipset_data;
707	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
708	ata_udelay(1000);
709	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
710		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
711		  ~0x00003f9f) | (ch->unit + 1));
712
713	/* softreset HOST module */ /* XXX SOS what about other outstandings */
714	mtx_lock(&hpktp->mtx);
715	ATA_OUTL(ctlr->r_res2, 0xc012c,
716		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
717	DELAY(10);
718	ATA_OUTL(ctlr->r_res2, 0xc012c,
719		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
720	hpktp->busy = 0;
721	mtx_unlock(&hpktp->mtx);
722	ata_generic_reset(dev);
723	break;
724
725    case PR_PATA:
726    case PR_CMBO:
727    case PR_SATA:
728	if ((ctlr->chip->cfg2 == PR_SATA) ||
729	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
730
731	    /* mask plug/unplug intr */
732	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
733	}
734
735	/* softreset channels ATA module */
736	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
737	ata_udelay(10000);
738	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
739		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
740		  ~0x00003f9f) | (ch->unit + 1));
741
742	if ((ctlr->chip->cfg2 == PR_SATA) ||
743	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
744
745	    if (ata_sata_phy_reset(dev, -1, 1))
746		ata_generic_reset(dev);
747
748	    /* reset and enable plug/unplug intr */
749	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
750	}
751	else
752	    ata_generic_reset(dev);
753	break;
754
755    case PR_CMBO2:
756    case PR_SATA2:
757	if ((ctlr->chip->cfg2 == PR_SATA2) ||
758	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
759	    /* set portmultiplier port */
760	    //ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
761
762	    /* mask plug/unplug intr */
763	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
764	}
765
766	/* softreset channels ATA module */
767	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
768	ata_udelay(10000);
769	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
770		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
771		  ~0x00003f9f) | (ch->unit + 1));
772
773	if ((ctlr->chip->cfg2 == PR_SATA2) ||
774	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
775
776	    /* set PHY mode to "improved" */
777	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
778		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
779		     ~0x00000003) | 0x00000001);
780
781	    if (ata_sata_phy_reset(dev, -1, 1)) {
782		u_int32_t signature = ch->hw.softreset(dev, ATA_PM);
783
784		if (1 | bootverbose)
785        	    device_printf(dev, "SIGNATURE: %08x\n", signature);
786
787		switch (signature >> 16) {
788		case 0x0000:
789		    ch->devices = ATA_ATA_MASTER;
790		    break;
791		case 0x9669:
792		    ch->devices = ATA_PORTMULTIPLIER;
793		    ata_pm_identify(dev);
794		    break;
795		case 0xeb14:
796		    ch->devices = ATA_ATAPI_MASTER;
797		    break;
798		default: /* SOS XXX */
799		    if (bootverbose)
800			device_printf(dev,
801				      "No signature, assuming disk device\n");
802		    ch->devices = ATA_ATA_MASTER;
803		}
804		if (bootverbose)
805		    device_printf(dev, "promise_mio_reset devices=%08x\n",
806		    		  ch->devices);
807
808	    } else
809		ch->devices = 0;
810
811	    /* reset and enable plug/unplug intr */
812	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
813
814	    ///* set portmultiplier port */
815	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
816	}
817	else
818	    ata_generic_reset(dev);
819	break;
820
821    }
822}
823
824static int
825ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result)
826{
827    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
828    struct ata_channel *ch = device_get_softc(dev);
829    int timeout = 0;
830
831    /* set portmultiplier port */
832    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
833
834    ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
835    ATA_IDX_OUTB(ch, ATA_DRIVE, port);
836
837    ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_READ_PM);
838
839    while (timeout < 1000000) {
840	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
841	if (!(status & ATA_S_BUSY))
842	    break;
843	timeout += 1000;
844	DELAY(1000);
845    }
846    if (timeout >= 1000000)
847	return ATA_E_ABORT;
848
849    *result = ATA_IDX_INB(ch, ATA_COUNT) |
850	      (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
851	      (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
852	      (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
853    return 0;
854}
855
856static int
857ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t value)
858{
859    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
860    struct ata_channel *ch = device_get_softc(dev);
861    int timeout = 0;
862
863    /* set portmultiplier port */
864    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
865
866    ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
867    ATA_IDX_OUTB(ch, ATA_DRIVE, port);
868    ATA_IDX_OUTB(ch, ATA_COUNT, value & 0xff);
869    ATA_IDX_OUTB(ch, ATA_SECTOR, (value >> 8) & 0xff);
870    ATA_IDX_OUTB(ch, ATA_CYL_LSB, (value >> 16) & 0xff);
871    ATA_IDX_OUTB(ch, ATA_CYL_MSB, (value >> 24) & 0xff);
872
873    ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_WRITE_PM);
874
875    while (timeout < 1000000) {
876	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
877	if (!(status & ATA_S_BUSY))
878	    break;
879	timeout += 1000;
880	DELAY(1000);
881    }
882    if (timeout >= 1000000)
883	return ATA_E_ABORT;
884
885    return ATA_IDX_INB(ch, ATA_ERROR);
886}
887
888/* must be called with ATA channel locked and state_mtx held */
889static u_int32_t
890ata_promise_mio_softreset(device_t dev, int port)
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;
895
896    /* set portmultiplier port */
897    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), port & 0x0f);
898
899    /* softreset device on this channel */
900    ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | ATA_DEV(ATA_MASTER));
901    DELAY(10);
902    ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS | ATA_A_RESET);
903    ata_udelay(10000);
904    ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS);
905    ata_udelay(150000);
906    ATA_IDX_INB(ch, ATA_ERROR);
907
908    /* wait for BUSY to go inactive */
909    for (timeout = 0; timeout < 100; timeout++) {
910	u_int8_t err, stat;
911
912	err = ATA_IDX_INB(ch, ATA_ERROR);
913	stat = ATA_IDX_INB(ch, ATA_STATUS);
914
915	//if (stat == err && timeout > (stat & ATA_S_BUSY ? 100 : 10))
916	    //break;
917
918	if (!(stat & ATA_S_BUSY)) {
919	    //if ((err & 0x7f) == ATA_E_ILI) {
920		return ATA_IDX_INB(ch, ATA_COUNT) |
921		       (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
922		       (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
923		       (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
924	    //}
925	    //else if (stat & 0x0f) {
926		//stat |= ATA_S_BUSY;
927	    //}
928	}
929
930	if (!(stat & ATA_S_BUSY) || (stat == 0xff && timeout > 10))
931	    break;
932	ata_udelay(100000);
933    }
934    return -1;
935}
936
937static void
938ata_promise_mio_dmainit(device_t dev)
939{
940    struct ata_channel *ch = device_get_softc(dev);
941
942    ata_dmainit(dev);
943    /* note start and stop are not used here */
944    ch->dma.setprd = ata_promise_mio_setprd;
945    ch->dma.max_iosize = 65536;
946}
947
948
949#define MAXLASTSGSIZE (32 * sizeof(u_int32_t))
950static void
951ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
952{
953    struct ata_dmasetprd_args *args = xsc;
954    struct ata_dma_prdentry *prd = args->dmatab;
955    int i;
956
957    if ((args->error = error))
958	return;
959
960    for (i = 0; i < nsegs; i++) {
961	prd[i].addr = htole32(segs[i].ds_addr);
962	prd[i].count = htole32(segs[i].ds_len);
963    }
964    if (segs[i - 1].ds_len > MAXLASTSGSIZE) {
965	//printf("split last SG element of %u\n", segs[i - 1].ds_len);
966	prd[i - 1].count = htole32(segs[i - 1].ds_len - MAXLASTSGSIZE);
967	prd[i].count = htole32(MAXLASTSGSIZE);
968	prd[i].addr = htole32(segs[i - 1].ds_addr +
969			      (segs[i - 1].ds_len - MAXLASTSGSIZE));
970	nsegs++;
971	i++;
972    }
973    prd[i - 1].count |= htole32(ATA_DMA_EOT);
974    KASSERT(nsegs <= ATA_DMA_ENTRIES, ("too many DMA segment entries\n"));
975    args->nsegs = nsegs;
976}
977
978static int
979ata_promise_mio_setmode(device_t dev, int target, int mode)
980{
981        struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
982        struct ata_channel *ch = device_get_softc(dev);
983
984        if ( (ctlr->chip->cfg2 == PR_SATA) ||
985    	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
986	     (ctlr->chip->cfg2 == PR_SATA2) ||
987	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
988		mode = ata_sata_setmode(dev, target, mode);
989	else
990		mode = ata_promise_setmode(dev, target, mode);
991	return (mode);
992}
993
994static int
995ata_promise_mio_getrev(device_t dev, int target)
996{
997        struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
998        struct ata_channel *ch = device_get_softc(dev);
999
1000        if ( (ctlr->chip->cfg2 == PR_SATA) ||
1001    	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1002	     (ctlr->chip->cfg2 == PR_SATA2) ||
1003	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1004		return (ata_sata_getrev(dev, target));
1005	else
1006		return (0);
1007}
1008
1009static void
1010ata_promise_sx4_intr(void *data)
1011{
1012    struct ata_pci_controller *ctlr = data;
1013    struct ata_channel *ch;
1014    u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
1015    int unit;
1016
1017    for (unit = 0; unit < ctlr->channels; unit++) {
1018	if (vector & (1 << (unit + 1)))
1019	    if ((ch = ctlr->interrupt[unit].argument))
1020		ctlr->interrupt[unit].function(ch);
1021	if (vector & (1 << (unit + 5)))
1022	    if ((ch = ctlr->interrupt[unit].argument))
1023		ata_promise_queue_hpkt(ctlr,
1024				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1025					       ATA_PDC_HPKT_OFFSET));
1026	if (vector & (1 << (unit + 9))) {
1027	    ata_promise_next_hpkt(ctlr);
1028	    if ((ch = ctlr->interrupt[unit].argument))
1029		ctlr->interrupt[unit].function(ch);
1030	}
1031	if (vector & (1 << (unit + 13))) {
1032	    ata_promise_next_hpkt(ctlr);
1033	    if ((ch = ctlr->interrupt[unit].argument))
1034		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1035			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1036			 ATA_PDC_APKT_OFFSET));
1037	}
1038    }
1039}
1040
1041static int
1042ata_promise_sx4_command(struct ata_request *request)
1043{
1044    device_t gparent = device_get_parent(request->parent);
1045    struct ata_pci_controller *ctlr = device_get_softc(gparent);
1046    struct ata_channel *ch = device_get_softc(request->parent);
1047    struct ata_dma_prdentry *prd;
1048    caddr_t window = rman_get_virtual(ctlr->r_res1);
1049    u_int32_t *wordp;
1050    int i, idx, length = 0;
1051
1052    /* XXX SOS add ATAPI commands support later */
1053    switch (request->u.ata.command) {
1054
1055    default:
1056	return -1;
1057
1058    case ATA_ATA_IDENTIFY:
1059    case ATA_READ:
1060    case ATA_READ48:
1061    case ATA_READ_MUL:
1062    case ATA_READ_MUL48:
1063    case ATA_WRITE:
1064    case ATA_WRITE48:
1065    case ATA_WRITE_MUL:
1066    case ATA_WRITE_MUL48:
1067	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1068	return ata_generic_command(request);
1069
1070    case ATA_SETFEATURES:
1071    case ATA_FLUSHCACHE:
1072    case ATA_FLUSHCACHE48:
1073    case ATA_SLEEP:
1074    case ATA_SET_MULTI:
1075	wordp = (u_int32_t *)
1076	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1077	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
1078	wordp[1] = 0;
1079	wordp[2] = 0;
1080	ata_promise_apkt((u_int8_t *)wordp, request);
1081	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1082	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1083	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1084		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
1085	return 0;
1086
1087    case ATA_READ_DMA:
1088    case ATA_READ_DMA48:
1089    case ATA_WRITE_DMA:
1090    case ATA_WRITE_DMA48:
1091	prd = request->dma->sg;
1092	wordp = (u_int32_t *)
1093	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
1094	i = idx = 0;
1095	do {
1096	    wordp[idx++] = prd[i].addr;
1097	    wordp[idx++] = prd[i].count;
1098	    length += (prd[i].count & ~ATA_DMA_EOT);
1099	} while (!(prd[i++].count & ATA_DMA_EOT));
1100
1101	wordp = (u_int32_t *)
1102	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
1103	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1104	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1105
1106	wordp = (u_int32_t *)
1107	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
1108	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1109	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1110
1111	wordp = (u_int32_t *)
1112	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
1113	if (request->flags & ATA_R_READ)
1114	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
1115	if (request->flags & ATA_R_WRITE)
1116	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
1117	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
1118	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
1119	wordp[3] = 0;
1120
1121	wordp = (u_int32_t *)
1122	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1123	if (request->flags & ATA_R_READ)
1124	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
1125	if (request->flags & ATA_R_WRITE)
1126	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
1127	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
1128	wordp[2] = 0;
1129	ata_promise_apkt((u_int8_t *)wordp, request);
1130	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1131
1132	if (request->flags & ATA_R_READ) {
1133	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
1134	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
1135	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1136		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
1137	}
1138	if (request->flags & ATA_R_WRITE) {
1139	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
1140	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
1141	    ata_promise_queue_hpkt(ctlr,
1142		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
1143	}
1144	return 0;
1145    }
1146}
1147
1148static int
1149ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
1150{
1151    int i = 12;
1152
1153    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
1154    bytep[i++] = ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit);
1155    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
1156    bytep[i++] = ATA_A_4BIT;
1157
1158    if (request->flags & ATA_R_48BIT) {
1159	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1160	bytep[i++] = request->u.ata.feature >> 8;
1161	bytep[i++] = request->u.ata.feature;
1162	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
1163	bytep[i++] = request->u.ata.count >> 8;
1164	bytep[i++] = request->u.ata.count;
1165	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1166	bytep[i++] = request->u.ata.lba >> 24;
1167	bytep[i++] = request->u.ata.lba;
1168	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1169	bytep[i++] = request->u.ata.lba >> 32;
1170	bytep[i++] = request->u.ata.lba >> 8;
1171	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1172	bytep[i++] = request->u.ata.lba >> 40;
1173	bytep[i++] = request->u.ata.lba >> 16;
1174	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1175	bytep[i++] = ATA_D_LBA | ATA_DEV(request->unit);
1176    }
1177    else {
1178	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1179	bytep[i++] = request->u.ata.feature;
1180	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
1181	bytep[i++] = request->u.ata.count;
1182	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1183	bytep[i++] = request->u.ata.lba;
1184	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1185	bytep[i++] = request->u.ata.lba >> 8;
1186	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1187	bytep[i++] = request->u.ata.lba >> 16;
1188	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1189	bytep[i++] = ATA_D_LBA | ATA_D_IBM | ATA_DEV(request->unit) |
1190		     ((request->u.ata.lba >> 24)&0xf);
1191    }
1192    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
1193    bytep[i++] = request->u.ata.command;
1194    return i;
1195}
1196
1197static void
1198ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
1199{
1200    struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1201
1202    mtx_lock(&hpktp->mtx);
1203    if (hpktp->busy) {
1204	struct host_packet *hp =
1205	    malloc(sizeof(struct host_packet), M_TEMP, M_NOWAIT | M_ZERO);
1206	hp->addr = hpkt;
1207	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
1208    }
1209    else {
1210	hpktp->busy = 1;
1211	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
1212    }
1213    mtx_unlock(&hpktp->mtx);
1214}
1215
1216static void
1217ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
1218{
1219    struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1220    struct host_packet *hp;
1221
1222    mtx_lock(&hpktp->mtx);
1223    if ((hp = TAILQ_FIRST(&hpktp->queue))) {
1224	TAILQ_REMOVE(&hpktp->queue, hp, chain);
1225	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
1226	free(hp, M_TEMP);
1227    }
1228    else
1229	hpktp->busy = 0;
1230    mtx_unlock(&hpktp->mtx);
1231}
1232
1233ATA_DECLARE_DRIVER(ata_promise);
1234