ata-promise.c revision 198717
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 198717 2009-10-31 13:24:14Z 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 void ata_promise_setmode(device_t dev, 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 void ata_promise_mio_setmode(device_t dev, int mode);
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/*
98 * Promise chipset support functions
99 */
100#define ATA_PDC_APKT_OFFSET     0x00000010
101#define ATA_PDC_HPKT_OFFSET     0x00000040
102#define ATA_PDC_ASG_OFFSET      0x00000080
103#define ATA_PDC_LSG_OFFSET      0x000000c0
104#define ATA_PDC_HSG_OFFSET      0x00000100
105#define ATA_PDC_CHN_OFFSET      0x00000400
106#define ATA_PDC_BUF_BASE        0x00400000
107#define ATA_PDC_BUF_OFFSET      0x00100000
108#define ATA_PDC_MAX_HPKT        8
109#define ATA_PDC_WRITE_REG       0x00
110#define ATA_PDC_WRITE_CTL       0x0e
111#define ATA_PDC_WRITE_END       0x08
112#define ATA_PDC_WAIT_NBUSY      0x10
113#define ATA_PDC_WAIT_READY      0x18
114#define ATA_PDC_1B              0x20
115#define ATA_PDC_2B              0x40
116
117struct host_packet {
118    u_int32_t                   addr;
119    TAILQ_ENTRY(host_packet)    chain;
120};
121
122struct ata_promise_sx4 {
123    struct mtx                  mtx;
124    TAILQ_HEAD(, host_packet)   queue;
125    int                         busy;
126};
127
128static int
129ata_promise_probe(device_t dev)
130{
131    struct ata_pci_controller *ctlr = device_get_softc(dev);
132    struct ata_chip_id *idx;
133    static struct ata_chip_id ids[] =
134    {{ ATA_PDC20246,  0, PR_OLD, 0x00,     ATA_UDMA2, "PDC20246" },
135     { ATA_PDC20262,  0, PR_NEW, 0x00,     ATA_UDMA4, "PDC20262" },
136     { ATA_PDC20263,  0, PR_NEW, 0x00,     ATA_UDMA4, "PDC20263" },
137     { ATA_PDC20265,  0, PR_NEW, 0x00,     ATA_UDMA5, "PDC20265" },
138     { ATA_PDC20267,  0, PR_NEW, 0x00,     ATA_UDMA5, "PDC20267" },
139     { ATA_PDC20268,  0, PR_TX,  PR_TX4,   ATA_UDMA5, "PDC20268" },
140     { ATA_PDC20269,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20269" },
141     { ATA_PDC20270,  0, PR_TX,  PR_TX4,   ATA_UDMA5, "PDC20270" },
142     { ATA_PDC20271,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20271" },
143     { ATA_PDC20275,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20275" },
144     { ATA_PDC20276,  0, PR_TX,  PR_SX6K,  ATA_UDMA6, "PDC20276" },
145     { ATA_PDC20277,  0, PR_TX,  0x00,     ATA_UDMA6, "PDC20277" },
146     { ATA_PDC20318,  0, PR_MIO, PR_SATA,  ATA_SA150, "PDC20318" },
147     { ATA_PDC20319,  0, PR_MIO, PR_SATA,  ATA_SA150, "PDC20319" },
148     { ATA_PDC20371,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20371" },
149     { ATA_PDC20375,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20375" },
150     { ATA_PDC20376,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20376" },
151     { ATA_PDC20377,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20377" },
152     { ATA_PDC20378,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20378" },
153     { ATA_PDC20379,  0, PR_MIO, PR_CMBO,  ATA_SA150, "PDC20379" },
154     { ATA_PDC20571,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20571" },
155     { ATA_PDC20575,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20575" },
156     { ATA_PDC20579,  0, PR_MIO, PR_CMBO2, ATA_SA150, "PDC20579" },
157     { ATA_PDC20771,  0, PR_MIO, PR_CMBO2, ATA_SA300, "PDC20771" },
158     { ATA_PDC40775,  0, PR_MIO, PR_CMBO2, ATA_SA300, "PDC40775" },
159     { ATA_PDC20617,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20617" },
160     { ATA_PDC20618,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20618" },
161     { ATA_PDC20619,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20619" },
162     { ATA_PDC20620,  0, PR_MIO, PR_PATA,  ATA_UDMA6, "PDC20620" },
163     { ATA_PDC20621,  0, PR_MIO, PR_SX4X,  ATA_UDMA5, "PDC20621" },
164     { ATA_PDC20622,  0, PR_MIO, PR_SX4X,  ATA_SA150, "PDC20622" },
165     { ATA_PDC40518,  0, PR_MIO, PR_SATA2, ATA_SA150, "PDC40518" },
166     { ATA_PDC40519,  0, PR_MIO, PR_SATA2, ATA_SA150, "PDC40519" },
167     { ATA_PDC40718,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40718" },
168     { ATA_PDC40719,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40719" },
169     { ATA_PDC40779,  0, PR_MIO, PR_SATA2, ATA_SA300, "PDC40779" },
170     { 0, 0, 0, 0, 0, 0}};
171    char buffer[64];
172    uintptr_t devid = 0;
173
174    if (pci_get_vendor(dev) != ATA_PROMISE_ID)
175	return ENXIO;
176
177    if (!(idx = ata_match_chip(dev, ids)))
178	return ENXIO;
179
180    /* if we are on a SuperTrak SX6000 dont attach */
181    if ((idx->cfg2 & PR_SX6K) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
182	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
183		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
184	devid == ATA_I960RM)
185	return ENXIO;
186
187    strcpy(buffer, "Promise ");
188    strcat(buffer, idx->text);
189
190    /* if we are on a FastTrak TX4, adjust the interrupt resource */
191    if ((idx->cfg2 & PR_TX4) && pci_get_class(GRANDPARENT(dev))==PCIC_BRIDGE &&
192	!BUS_READ_IVAR(device_get_parent(GRANDPARENT(dev)),
193		       GRANDPARENT(dev), PCI_IVAR_DEVID, &devid) &&
194	((devid == ATA_DEC_21150) || (devid == ATA_DEC_21150_1))) {
195	static long start = 0, end = 0;
196
197	if (pci_get_slot(dev) == 1) {
198	    bus_get_resource(dev, SYS_RES_IRQ, 0, &start, &end);
199	    strcat(buffer, " (channel 0+1)");
200	}
201	else if (pci_get_slot(dev) == 2 && start && end) {
202	    bus_set_resource(dev, SYS_RES_IRQ, 0, start, end);
203	    strcat(buffer, " (channel 2+3)");
204	}
205	else {
206	    start = end = 0;
207	}
208    }
209    sprintf(buffer, "%s %s controller", buffer, ata_mode2str(idx->max_dma));
210    device_set_desc_copy(dev, buffer);
211    ctlr->chip = idx;
212    ctlr->chipinit = ata_promise_chipinit;
213    return (BUS_PROBE_DEFAULT);
214}
215
216static int
217ata_promise_chipinit(device_t dev)
218{
219    struct ata_pci_controller *ctlr = device_get_softc(dev);
220    int fake_reg, stat_reg;
221
222    if (ata_setup_interrupt(dev, ata_generic_intr))
223	return ENXIO;
224
225    switch  (ctlr->chip->cfg1) {
226    case PR_NEW:
227	/* setup clocks */
228	ATA_OUTB(ctlr->r_res1, 0x11, ATA_INB(ctlr->r_res1, 0x11) | 0x0a);
229	/* FALLTHROUGH */
230
231    case PR_OLD:
232	/* enable burst mode */
233	ATA_OUTB(ctlr->r_res1, 0x1f, ATA_INB(ctlr->r_res1, 0x1f) | 0x01);
234	ctlr->ch_attach = ata_promise_ch_attach;
235	ctlr->ch_detach = ata_pci_ch_detach;
236	ctlr->setmode = ata_promise_setmode;
237	return 0;
238
239    case PR_TX:
240	ctlr->ch_attach = ata_promise_tx2_ch_attach;
241	ctlr->ch_detach = ata_pci_ch_detach;
242	ctlr->setmode = ata_promise_setmode;
243	return 0;
244
245    case PR_MIO:
246	ctlr->r_type1 = SYS_RES_MEMORY;
247	ctlr->r_rid1 = PCIR_BAR(4);
248	if (!(ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1,
249						    &ctlr->r_rid1, RF_ACTIVE)))
250	    goto failnfree;
251
252	ctlr->r_type2 = SYS_RES_MEMORY;
253	ctlr->r_rid2 = PCIR_BAR(3);
254	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
255						    &ctlr->r_rid2, RF_ACTIVE)))
256	    goto failnfree;
257
258	if (ctlr->chip->cfg2 == PR_SX4X) {
259	    struct ata_promise_sx4 *hpkt;
260	    u_int32_t dimm = ATA_INL(ctlr->r_res2, 0x000c0080);
261
262	    if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
263		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
264			       ata_promise_sx4_intr, ctlr, &ctlr->handle)) {
265		device_printf(dev, "unable to setup interrupt\n");
266		goto failnfree;
267	    }
268
269	    /* print info about cache memory */
270	    device_printf(dev, "DIMM size %dMB @ 0x%08x%s\n",
271			  (((dimm >> 16) & 0xff)-((dimm >> 24) & 0xff)+1) << 4,
272			  ((dimm >> 24) & 0xff),
273			  ATA_INL(ctlr->r_res2, 0x000c0088) & (1<<16) ?
274			  " ECC enabled" : "" );
275
276	    /* adjust cache memory parameters */
277	    ATA_OUTL(ctlr->r_res2, 0x000c000c,
278		     (ATA_INL(ctlr->r_res2, 0x000c000c) & 0xffff0000));
279
280	    /* setup host packet controls */
281	    hpkt = malloc(sizeof(struct ata_promise_sx4),
282			  M_TEMP, M_NOWAIT | M_ZERO);
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	    fake_reg = 0x60;
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	    fake_reg = 0x54;
326	    stat_reg = 0x60;
327	    break;
328	}
329
330	/* prime fake interrupt register */
331	ATA_OUTL(ctlr->r_res2, fake_reg, 0xffffffff);
332
333	/* clear SATA status and unmask interrupts */
334	ATA_OUTL(ctlr->r_res2, stat_reg, 0x000000ff);
335
336	/* enable "long burst length" on gen2 chips */
337	if ((ctlr->chip->cfg2 == PR_SATA2) || (ctlr->chip->cfg2 == PR_CMBO2))
338	    ATA_OUTL(ctlr->r_res2, 0x44, ATA_INL(ctlr->r_res2, 0x44) | 0x2000);
339
340	ctlr->ch_attach = ata_promise_mio_ch_attach;
341	ctlr->ch_detach = ata_promise_mio_ch_detach;
342	ctlr->reset = ata_promise_mio_reset;
343	ctlr->setmode = ata_promise_mio_setmode;
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    return 0;
373}
374
375static int
376ata_promise_status(device_t dev)
377{
378    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
379    struct ata_channel *ch = device_get_softc(dev);
380
381    if (ATA_INL(ctlr->r_res1, 0x1c) & (ch->unit ? 0x00004000 : 0x00000400)) {
382	return ata_pci_status(dev);
383    }
384    return 0;
385}
386
387static int
388ata_promise_dmastart(struct ata_request *request)
389{
390    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
391    struct ata_channel *ch = device_get_softc(request->parent);
392
393    if (request->flags & ATA_R_48BIT) {
394	ATA_OUTB(ctlr->r_res1, 0x11,
395		 ATA_INB(ctlr->r_res1, 0x11) | (ch->unit ? 0x08 : 0x02));
396	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20,
397		 ((request->flags & ATA_R_READ) ? 0x05000000 : 0x06000000) |
398		 (request->bytecount >> 1));
399    }
400    ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
401		 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
402    ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
403    ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
404		 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0) |
405		 ATA_BMCMD_START_STOP);
406    ch->dma.flags |= ATA_DMA_ACTIVE;
407    return 0;
408}
409
410static int
411ata_promise_dmastop(struct ata_request *request)
412{
413    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
414    struct ata_channel *ch = device_get_softc(request->parent);
415    int error;
416
417    if (request->flags & ATA_R_48BIT) {
418	ATA_OUTB(ctlr->r_res1, 0x11,
419		 ATA_INB(ctlr->r_res1, 0x11) & ~(ch->unit ? 0x08 : 0x02));
420	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20, 0);
421    }
422    error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT);
423    ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
424		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
425    ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
426    ch->dma.flags &= ~ATA_DMA_ACTIVE;
427    return error;
428}
429
430static void
431ata_promise_dmareset(device_t dev)
432{
433    struct ata_channel *ch = device_get_softc(dev);
434
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->flags &= ~ATA_DMA_ACTIVE;
439}
440
441static void
442ata_promise_setmode(device_t dev, int mode)
443{
444    device_t gparent = GRANDPARENT(dev);
445    struct ata_pci_controller *ctlr = device_get_softc(gparent);
446    struct ata_channel *ch = device_get_softc(device_get_parent(dev));
447    struct ata_device *atadev = device_get_softc(dev);
448    int devno = (ch->unit << 1) + atadev->unit;
449    int error;
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 = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
469
470    switch (ctlr->chip->cfg1) {
471    case PR_OLD:
472    case PR_NEW:
473	if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x50, 2) &
474				 (ch->unit ? 1 << 11 : 1 << 10))) {
475	    ata_print_cable(dev, "controller");
476	    mode = ATA_UDMA2;
477	}
478	if (ata_atapi(dev) && mode > ATA_PIO_MAX)
479	    mode = ata_limit_mode(dev, mode, ATA_PIO_MAX);
480	break;
481
482    case PR_TX:
483	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
484	if (mode > ATA_UDMA2 &&
485	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
486	    ata_print_cable(dev, "controller");
487	    mode = ATA_UDMA2;
488	}
489	break;
490
491    case PR_MIO:
492	if (mode > ATA_UDMA2 &&
493	    (ATA_INL(ctlr->r_res2,
494		     (ctlr->chip->cfg2 & PR_SX4X ? 0x000c0260 : 0x0260) +
495		     (ch->unit << 7)) & 0x01000000)) {
496	    ata_print_cable(dev, "controller");
497	    mode = ATA_UDMA2;
498	}
499	break;
500    }
501
502    error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
503
504    if (bootverbose)
505	device_printf(dev, "%ssetting %s on %s chip\n",
506		     (error) ? "FAILURE " : "",
507		     ata_mode2str(mode), ctlr->chip->text);
508    if (!error) {
509	if (ctlr->chip->cfg1 < PR_TX)
510	    pci_write_config(gparent, 0x60 + (devno << 2),
511			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
512	atadev->mode = mode;
513    }
514    return;
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    return 0;
527}
528
529static int
530ata_promise_tx2_status(device_t dev)
531{
532    struct ata_channel *ch = device_get_softc(dev);
533
534    ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
535    if (ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x20) {
536	return ata_pci_status(dev);
537    }
538    return 0;
539}
540
541static int
542ata_promise_mio_ch_attach(device_t dev)
543{
544    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
545    struct ata_channel *ch = device_get_softc(dev);
546    int offset = (ctlr->chip->cfg2 & PR_SX4X) ? 0x000c0000 : 0;
547    int i;
548
549    ata_promise_mio_dmainit(dev);
550
551    for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
552	ch->r_io[i].res = ctlr->r_res2;
553	ch->r_io[i].offset = offset + 0x0200 + (i << 2) + (ch->unit << 7);
554    }
555    ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
556    ch->r_io[ATA_CONTROL].offset = offset + 0x0238 + (ch->unit << 7);
557    ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
558    ata_default_registers(dev);
559    if ((ctlr->chip->cfg2 & (PR_SATA | PR_SATA2)) ||
560	((ctlr->chip->cfg2 & (PR_CMBO | PR_CMBO2)) && ch->unit < 2)) {
561	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
562	ch->r_io[ATA_SSTATUS].offset = 0x400 + (ch->unit << 8);
563	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
564	ch->r_io[ATA_SERROR].offset = 0x404 + (ch->unit << 8);
565	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
566	ch->r_io[ATA_SCONTROL].offset = 0x408 + (ch->unit << 8);
567	ch->flags |= ATA_NO_SLAVE;
568    }
569    ch->flags |= ATA_USE_16BIT;
570
571    ata_generic_hw(dev);
572    if (ctlr->chip->cfg2 & PR_SX4X) {
573	ch->hw.command = ata_promise_sx4_command;
574    }
575    else {
576	ch->hw.command = ata_promise_mio_command;
577	ch->hw.status = ata_promise_mio_status;
578	ch->hw.softreset = ata_promise_mio_softreset;
579	ch->hw.pm_read = ata_promise_mio_pm_read;
580	ch->hw.pm_write = ata_promise_mio_pm_write;
581     }
582    return 0;
583}
584
585static int
586ata_promise_mio_ch_detach(device_t dev)
587{
588
589    ata_dmafini(dev);
590    return (0);
591}
592
593static void
594ata_promise_mio_intr(void *data)
595{
596    struct ata_pci_controller *ctlr = data;
597    struct ata_channel *ch;
598    u_int32_t vector;
599    int unit, fake_reg;
600
601    switch (ctlr->chip->cfg2) {
602    case PR_PATA:
603    case PR_CMBO:
604    case PR_SATA:
605	fake_reg = 0x60;
606	break;
607    case PR_CMBO2:
608    case PR_SATA2:
609    default:
610	fake_reg = 0x54;
611	break;
612    }
613
614    /*
615     * since reading interrupt status register on early "mio" chips
616     * clears the status bits we cannot read it for each channel later on
617     * in the generic interrupt routine.
618     * store the bits in an unused register in the chip so we can read
619     * it from there safely to get around this "feature".
620     */
621    vector = ATA_INL(ctlr->r_res2, 0x040);
622    ATA_OUTL(ctlr->r_res2, 0x040, vector);
623    ATA_OUTL(ctlr->r_res2, fake_reg, vector);
624
625    for (unit = 0; unit < ctlr->channels; unit++) {
626	if ((ch = ctlr->interrupt[unit].argument))
627	    ctlr->interrupt[unit].function(ch);
628    }
629
630    ATA_OUTL(ctlr->r_res2, fake_reg, 0xffffffff);
631}
632
633static int
634ata_promise_mio_status(device_t dev)
635{
636    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
637    struct ata_channel *ch = device_get_softc(dev);
638    u_int32_t fake_reg, stat_reg, vector, status;
639
640    switch (ctlr->chip->cfg2) {
641    case PR_PATA:
642    case PR_CMBO:
643    case PR_SATA:
644	fake_reg = 0x60;
645	stat_reg = 0x6c;
646	break;
647    case PR_CMBO2:
648    case PR_SATA2:
649    default:
650	fake_reg = 0x54;
651	stat_reg = 0x60;
652	break;
653    }
654
655    /* read and acknowledge interrupt */
656    vector = ATA_INL(ctlr->r_res2, fake_reg);
657
658    /* read and clear interface status */
659    status = ATA_INL(ctlr->r_res2, stat_reg);
660    ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
661
662    /* check for and handle disconnect events */
663    if (status & (0x00000001 << ch->unit)) {
664	if (bootverbose)
665	    device_printf(dev, "DISCONNECT requested\n");
666	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
667    }
668
669    /* check for and handle connect events */
670    if (status & (0x00000010 << ch->unit)) {
671	if (bootverbose)
672	    device_printf(dev, "CONNECT requested\n");
673	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
674    }
675
676    /* do we have any device action ? */
677    return (vector & (1 << (ch->unit + 1)));
678}
679
680static int
681ata_promise_mio_command(struct ata_request *request)
682{
683    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
684    struct ata_channel *ch = device_get_softc(request->parent);
685
686    u_int32_t *wordp = (u_int32_t *)ch->dma.work;
687
688    ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
689
690    if ((ctlr->chip->cfg2 == PR_SATA2) ||
691        ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
692	/* set portmultiplier port */
693	ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), request->unit & 0x0f);
694    }
695
696    /* XXX SOS add ATAPI commands support later */
697    switch (request->u.ata.command) {
698    default:
699	return ata_generic_command(request);
700
701    case ATA_READ_DMA:
702    case ATA_READ_DMA48:
703	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
704	break;
705
706    case ATA_WRITE_DMA:
707    case ATA_WRITE_DMA48:
708	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
709	break;
710    }
711    wordp[1] = htole32(request->dma->sg_bus);
712    wordp[2] = 0;
713    ata_promise_apkt((u_int8_t*)wordp, request);
714
715    ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma.work_bus);
716    return 0;
717}
718
719static void
720ata_promise_mio_reset(device_t dev)
721{
722    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
723    struct ata_channel *ch = device_get_softc(dev);
724    struct ata_promise_sx4 *hpktp;
725
726    switch (ctlr->chip->cfg2) {
727    case PR_SX4X:
728
729	/* softreset channel ATA module */
730	hpktp = ctlr->chipset_data;
731	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
732	ata_udelay(1000);
733	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
734		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
735		  ~0x00003f9f) | (ch->unit + 1));
736
737	/* softreset HOST module */ /* XXX SOS what about other outstandings */
738	mtx_lock(&hpktp->mtx);
739	ATA_OUTL(ctlr->r_res2, 0xc012c,
740		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
741	DELAY(10);
742	ATA_OUTL(ctlr->r_res2, 0xc012c,
743		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
744	hpktp->busy = 0;
745	mtx_unlock(&hpktp->mtx);
746	ata_generic_reset(dev);
747	break;
748
749    case PR_PATA:
750    case PR_CMBO:
751    case PR_SATA:
752	if ((ctlr->chip->cfg2 == PR_SATA) ||
753	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
754
755	    /* mask plug/unplug intr */
756	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
757	}
758
759	/* softreset channels ATA module */
760	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
761	ata_udelay(10000);
762	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
763		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
764		  ~0x00003f9f) | (ch->unit + 1));
765
766	if ((ctlr->chip->cfg2 == PR_SATA) ||
767	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
768
769	    if (ata_sata_phy_reset(dev, -1, 1))
770		ata_generic_reset(dev);
771
772	    /* reset and enable plug/unplug intr */
773	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
774	}
775	else
776	    ata_generic_reset(dev);
777	break;
778
779    case PR_CMBO2:
780    case PR_SATA2:
781	if ((ctlr->chip->cfg2 == PR_SATA2) ||
782	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
783	    /* set portmultiplier port */
784	    //ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
785
786	    /* mask plug/unplug intr */
787	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
788	}
789
790	/* softreset channels ATA module */
791	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
792	ata_udelay(10000);
793	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
794		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
795		  ~0x00003f9f) | (ch->unit + 1));
796
797	if ((ctlr->chip->cfg2 == PR_SATA2) ||
798	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
799
800	    /* set PHY mode to "improved" */
801	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
802		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
803		     ~0x00000003) | 0x00000001);
804
805	    if (ata_sata_phy_reset(dev, -1, 1)) {
806		u_int32_t signature = ch->hw.softreset(dev, ATA_PM);
807
808		if (1 | bootverbose)
809        	    device_printf(dev, "SIGNATURE: %08x\n", signature);
810
811		switch (signature >> 16) {
812		case 0x0000:
813		    ch->devices = ATA_ATA_MASTER;
814		    break;
815		case 0x9669:
816		    ch->devices = ATA_PORTMULTIPLIER;
817		    ata_pm_identify(dev);
818		    break;
819		case 0xeb14:
820		    ch->devices = ATA_ATAPI_MASTER;
821		    break;
822		default: /* SOS XXX */
823		    if (bootverbose)
824			device_printf(dev,
825				      "No signature, assuming disk device\n");
826		    ch->devices = ATA_ATA_MASTER;
827		}
828		if (bootverbose)
829		    device_printf(dev, "promise_mio_reset devices=%08x\n",
830		    		  ch->devices);
831
832	    }
833
834	    /* reset and enable plug/unplug intr */
835	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
836
837	    ///* set portmultiplier port */
838	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
839	}
840	else
841	    ata_generic_reset(dev);
842	break;
843
844    }
845}
846
847static int
848ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result)
849{
850    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
851    struct ata_channel *ch = device_get_softc(dev);
852    int timeout = 0;
853
854    /* set portmultiplier port */
855    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
856
857    ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
858    ATA_IDX_OUTB(ch, ATA_DRIVE, port);
859
860    ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_READ_PM);
861
862    while (timeout < 1000000) {
863	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
864	if (!(status & ATA_S_BUSY))
865	    break;
866	timeout += 1000;
867	DELAY(1000);
868    }
869    if (timeout >= 1000000)
870	return ATA_E_ABORT;
871
872    *result = ATA_IDX_INB(ch, ATA_COUNT) |
873	      (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
874	      (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
875	      (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
876    return 0;
877}
878
879static int
880ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t value)
881{
882    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
883    struct ata_channel *ch = device_get_softc(dev);
884    int timeout = 0;
885
886    /* set portmultiplier port */
887    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
888
889    ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
890    ATA_IDX_OUTB(ch, ATA_DRIVE, port);
891    ATA_IDX_OUTB(ch, ATA_COUNT, value & 0xff);
892    ATA_IDX_OUTB(ch, ATA_SECTOR, (value >> 8) & 0xff);
893    ATA_IDX_OUTB(ch, ATA_CYL_LSB, (value >> 16) & 0xff);
894    ATA_IDX_OUTB(ch, ATA_CYL_MSB, (value >> 24) & 0xff);
895
896    ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_WRITE_PM);
897
898    while (timeout < 1000000) {
899	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
900	if (!(status & ATA_S_BUSY))
901	    break;
902	timeout += 1000;
903	DELAY(1000);
904    }
905    if (timeout >= 1000000)
906	return ATA_E_ABORT;
907
908    return ATA_IDX_INB(ch, ATA_ERROR);
909}
910
911/* must be called with ATA channel locked and state_mtx held */
912static u_int32_t
913ata_promise_mio_softreset(device_t dev, int port)
914{
915    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
916    struct ata_channel *ch = device_get_softc(dev);
917    int timeout;
918
919    /* set portmultiplier port */
920    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), port & 0x0f);
921
922    /* softreset device on this channel */
923    ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | ATA_DEV(ATA_MASTER));
924    DELAY(10);
925    ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS | ATA_A_RESET);
926    ata_udelay(10000);
927    ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS);
928    ata_udelay(150000);
929    ATA_IDX_INB(ch, ATA_ERROR);
930
931    /* wait for BUSY to go inactive */
932    for (timeout = 0; timeout < 100; timeout++) {
933	u_int8_t err, stat;
934
935	err = ATA_IDX_INB(ch, ATA_ERROR);
936	stat = ATA_IDX_INB(ch, ATA_STATUS);
937
938	//if (stat == err && timeout > (stat & ATA_S_BUSY ? 100 : 10))
939	    //break;
940
941	if (!(stat & ATA_S_BUSY)) {
942	    //if ((err & 0x7f) == ATA_E_ILI) {
943		return ATA_IDX_INB(ch, ATA_COUNT) |
944		       (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
945		       (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
946		       (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
947	    //}
948	    //else if (stat & 0x0f) {
949		//stat |= ATA_S_BUSY;
950	    //}
951	}
952
953	if (!(stat & ATA_S_BUSY) || (stat == 0xff && timeout > 10))
954	    break;
955	ata_udelay(100000);
956    }
957    return -1;
958}
959
960static void
961ata_promise_mio_dmainit(device_t dev)
962{
963    struct ata_channel *ch = device_get_softc(dev);
964
965    ata_dmainit(dev);
966    /* note start and stop are not used here */
967    ch->dma.setprd = ata_promise_mio_setprd;
968}
969
970
971#define MAXLASTSGSIZE (32 * sizeof(u_int32_t))
972static void
973ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
974{
975    struct ata_dmasetprd_args *args = xsc;
976    struct ata_dma_prdentry *prd = args->dmatab;
977    int i;
978
979    if ((args->error = error))
980	return;
981
982    for (i = 0; i < nsegs; i++) {
983	prd[i].addr = htole32(segs[i].ds_addr);
984	prd[i].count = htole32(segs[i].ds_len);
985    }
986    if (segs[i - 1].ds_len > MAXLASTSGSIZE) {
987	//printf("split last SG element of %u\n", segs[i - 1].ds_len);
988	prd[i - 1].count = htole32(segs[i - 1].ds_len - MAXLASTSGSIZE);
989	prd[i].count = htole32(MAXLASTSGSIZE);
990	prd[i].addr = htole32(segs[i - 1].ds_addr +
991			      (segs[i - 1].ds_len - MAXLASTSGSIZE));
992	nsegs++;
993	i++;
994    }
995    prd[i - 1].count |= htole32(ATA_DMA_EOT);
996    KASSERT(nsegs <= ATA_DMA_ENTRIES, ("too many DMA segment entries\n"));
997    args->nsegs = nsegs;
998}
999
1000static void
1001ata_promise_mio_setmode(device_t dev, int mode)
1002{
1003    device_t gparent = GRANDPARENT(dev);
1004    struct ata_pci_controller *ctlr = device_get_softc(gparent);
1005    struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1006
1007    if ( (ctlr->chip->cfg2 == PR_SATA) ||
1008	((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1009	(ctlr->chip->cfg2 == PR_SATA2) ||
1010	((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1011	ata_sata_setmode(dev, mode);
1012    else
1013	ata_promise_setmode(dev, mode);
1014}
1015
1016static void
1017ata_promise_sx4_intr(void *data)
1018{
1019    struct ata_pci_controller *ctlr = data;
1020    struct ata_channel *ch;
1021    u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
1022    int unit;
1023
1024    for (unit = 0; unit < ctlr->channels; unit++) {
1025	if (vector & (1 << (unit + 1)))
1026	    if ((ch = ctlr->interrupt[unit].argument))
1027		ctlr->interrupt[unit].function(ch);
1028	if (vector & (1 << (unit + 5)))
1029	    if ((ch = ctlr->interrupt[unit].argument))
1030		ata_promise_queue_hpkt(ctlr,
1031				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1032					       ATA_PDC_HPKT_OFFSET));
1033	if (vector & (1 << (unit + 9))) {
1034	    ata_promise_next_hpkt(ctlr);
1035	    if ((ch = ctlr->interrupt[unit].argument))
1036		ctlr->interrupt[unit].function(ch);
1037	}
1038	if (vector & (1 << (unit + 13))) {
1039	    ata_promise_next_hpkt(ctlr);
1040	    if ((ch = ctlr->interrupt[unit].argument))
1041		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1042			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1043			 ATA_PDC_APKT_OFFSET));
1044	}
1045    }
1046}
1047
1048static int
1049ata_promise_sx4_command(struct ata_request *request)
1050{
1051    device_t gparent = device_get_parent(request->parent);
1052    struct ata_pci_controller *ctlr = device_get_softc(gparent);
1053    struct ata_channel *ch = device_get_softc(request->parent);
1054    struct ata_dma_prdentry *prd;
1055    caddr_t window = rman_get_virtual(ctlr->r_res1);
1056    u_int32_t *wordp;
1057    int i, idx, length = 0;
1058
1059    /* XXX SOS add ATAPI commands support later */
1060    switch (request->u.ata.command) {
1061
1062    default:
1063	return -1;
1064
1065    case ATA_ATA_IDENTIFY:
1066    case ATA_READ:
1067    case ATA_READ48:
1068    case ATA_READ_MUL:
1069    case ATA_READ_MUL48:
1070    case ATA_WRITE:
1071    case ATA_WRITE48:
1072    case ATA_WRITE_MUL:
1073    case ATA_WRITE_MUL48:
1074	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1075	return ata_generic_command(request);
1076
1077    case ATA_SETFEATURES:
1078    case ATA_FLUSHCACHE:
1079    case ATA_FLUSHCACHE48:
1080    case ATA_SLEEP:
1081    case ATA_SET_MULTI:
1082	wordp = (u_int32_t *)
1083	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1084	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
1085	wordp[1] = 0;
1086	wordp[2] = 0;
1087	ata_promise_apkt((u_int8_t *)wordp, request);
1088	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1089	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1090	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1091		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
1092	return 0;
1093
1094    case ATA_READ_DMA:
1095    case ATA_READ_DMA48:
1096    case ATA_WRITE_DMA:
1097    case ATA_WRITE_DMA48:
1098	prd = request->dma->sg;
1099	wordp = (u_int32_t *)
1100	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
1101	i = idx = 0;
1102	do {
1103	    wordp[idx++] = prd[i].addr;
1104	    wordp[idx++] = prd[i].count;
1105	    length += (prd[i].count & ~ATA_DMA_EOT);
1106	} while (!(prd[i++].count & ATA_DMA_EOT));
1107
1108	wordp = (u_int32_t *)
1109	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
1110	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1111	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1112
1113	wordp = (u_int32_t *)
1114	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
1115	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1116	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1117
1118	wordp = (u_int32_t *)
1119	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
1120	if (request->flags & ATA_R_READ)
1121	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
1122	if (request->flags & ATA_R_WRITE)
1123	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
1124	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
1125	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
1126	wordp[3] = 0;
1127
1128	wordp = (u_int32_t *)
1129	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1130	if (request->flags & ATA_R_READ)
1131	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
1132	if (request->flags & ATA_R_WRITE)
1133	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
1134	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
1135	wordp[2] = 0;
1136	ata_promise_apkt((u_int8_t *)wordp, request);
1137	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1138
1139	if (request->flags & ATA_R_READ) {
1140	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
1141	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
1142	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1143		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
1144	}
1145	if (request->flags & ATA_R_WRITE) {
1146	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
1147	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
1148	    ata_promise_queue_hpkt(ctlr,
1149		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
1150	}
1151	return 0;
1152    }
1153}
1154
1155static int
1156ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
1157{
1158    int i = 12;
1159
1160    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
1161    bytep[i++] = ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit);
1162    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
1163    bytep[i++] = ATA_A_4BIT;
1164
1165    if (request->flags & ATA_R_48BIT) {
1166	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1167	bytep[i++] = request->u.ata.feature >> 8;
1168	bytep[i++] = request->u.ata.feature;
1169	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
1170	bytep[i++] = request->u.ata.count >> 8;
1171	bytep[i++] = request->u.ata.count;
1172	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1173	bytep[i++] = request->u.ata.lba >> 24;
1174	bytep[i++] = request->u.ata.lba;
1175	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1176	bytep[i++] = request->u.ata.lba >> 32;
1177	bytep[i++] = request->u.ata.lba >> 8;
1178	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1179	bytep[i++] = request->u.ata.lba >> 40;
1180	bytep[i++] = request->u.ata.lba >> 16;
1181	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1182	bytep[i++] = ATA_D_LBA | ATA_DEV(request->unit);
1183    }
1184    else {
1185	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1186	bytep[i++] = request->u.ata.feature;
1187	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
1188	bytep[i++] = request->u.ata.count;
1189	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1190	bytep[i++] = request->u.ata.lba;
1191	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1192	bytep[i++] = request->u.ata.lba >> 8;
1193	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1194	bytep[i++] = request->u.ata.lba >> 16;
1195	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1196	bytep[i++] = ATA_D_LBA | ATA_D_IBM | ATA_DEV(request->unit) |
1197		     ((request->u.ata.lba >> 24)&0xf);
1198    }
1199    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
1200    bytep[i++] = request->u.ata.command;
1201    return i;
1202}
1203
1204static void
1205ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
1206{
1207    struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1208
1209    mtx_lock(&hpktp->mtx);
1210    if (hpktp->busy) {
1211	struct host_packet *hp =
1212	    malloc(sizeof(struct host_packet), M_TEMP, M_NOWAIT | M_ZERO);
1213	hp->addr = hpkt;
1214	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
1215    }
1216    else {
1217	hpktp->busy = 1;
1218	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
1219    }
1220    mtx_unlock(&hpktp->mtx);
1221}
1222
1223static void
1224ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
1225{
1226    struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1227    struct host_packet *hp;
1228
1229    mtx_lock(&hpktp->mtx);
1230    if ((hp = TAILQ_FIRST(&hpktp->queue))) {
1231	TAILQ_REMOVE(&hpktp->queue, hp, chain);
1232	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
1233	free(hp, M_TEMP);
1234    }
1235    else
1236	hpktp->busy = 0;
1237    mtx_unlock(&hpktp->mtx);
1238}
1239
1240ATA_DECLARE_DRIVER(ata_promise);
1241