ata-promise.c revision 190581
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 190581 2009-03-30 22:18:38Z 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 0;
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	    device_set_ivars(dev, 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(GRANDPARENT(request->dev));
391    struct ata_channel *ch = device_get_softc(request->parent);
392    struct ata_device *atadev  = device_get_softc(request->dev);
393
394    if (atadev->flags & ATA_D_48BIT_ACTIVE) {
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(GRANDPARENT(request->dev));
415    struct ata_channel *ch = device_get_softc(request->parent);
416    struct ata_device *atadev  = device_get_softc(request->dev);
417    int error;
418
419    if (atadev->flags & ATA_D_48BIT_ACTIVE) {
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 void
444ata_promise_setmode(device_t dev, int mode)
445{
446    device_t gparent = GRANDPARENT(dev);
447    struct ata_pci_controller *ctlr = device_get_softc(gparent);
448    struct ata_channel *ch = device_get_softc(device_get_parent(dev));
449    struct ata_device *atadev = device_get_softc(dev);
450    int devno = (ch->unit << 1) + atadev->unit;
451    int error;
452    u_int32_t timings[][2] = {
453    /*    PR_OLD      PR_NEW               mode */
454	{ 0x004ff329, 0x004fff2f },     /* PIO 0 */
455	{ 0x004fec25, 0x004ff82a },     /* PIO 1 */
456	{ 0x004fe823, 0x004ff026 },     /* PIO 2 */
457	{ 0x004fe622, 0x004fec24 },     /* PIO 3 */
458	{ 0x004fe421, 0x004fe822 },     /* PIO 4 */
459	{ 0x004567f3, 0x004acef6 },     /* MWDMA 0 */
460	{ 0x004467f3, 0x0048cef6 },     /* MWDMA 1 */
461	{ 0x004367f3, 0x0046cef6 },     /* MWDMA 2 */
462	{ 0x004367f3, 0x0046cef6 },     /* UDMA 0 */
463	{ 0x004247f3, 0x00448ef6 },     /* UDMA 1 */
464	{ 0x004127f3, 0x00436ef6 },     /* UDMA 2 */
465	{ 0,          0x00424ef6 },     /* UDMA 3 */
466	{ 0,          0x004127f3 },     /* UDMA 4 */
467	{ 0,          0x004127f3 }      /* UDMA 5 */
468    };
469
470    mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
471
472    switch (ctlr->chip->cfg1) {
473    case PR_OLD:
474    case PR_NEW:
475	if (mode > ATA_UDMA2 && (pci_read_config(gparent, 0x50, 2) &
476				 (ch->unit ? 1 << 11 : 1 << 10))) {
477	    ata_print_cable(dev, "controller");
478	    mode = ATA_UDMA2;
479	}
480	if (ata_atapi(dev) && mode > ATA_PIO_MAX)
481	    mode = ata_limit_mode(dev, mode, ATA_PIO_MAX);
482	break;
483
484    case PR_TX:
485	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
486	if (mode > ATA_UDMA2 &&
487	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
488	    ata_print_cable(dev, "controller");
489	    mode = ATA_UDMA2;
490	}
491	break;
492
493    case PR_MIO:
494	if (mode > ATA_UDMA2 &&
495	    (ATA_INL(ctlr->r_res2,
496		     (ctlr->chip->cfg2 & PR_SX4X ? 0x000c0260 : 0x0260) +
497		     (ch->unit << 7)) & 0x01000000)) {
498	    ata_print_cable(dev, "controller");
499	    mode = ATA_UDMA2;
500	}
501	break;
502    }
503
504    error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
505
506    if (bootverbose)
507	device_printf(dev, "%ssetting %s on %s chip\n",
508		     (error) ? "FAILURE " : "",
509		     ata_mode2str(mode), ctlr->chip->text);
510    if (!error) {
511	if (ctlr->chip->cfg1 < PR_TX)
512	    pci_write_config(gparent, 0x60 + (devno << 2),
513			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
514	atadev->mode = mode;
515    }
516    return;
517}
518
519static int
520ata_promise_tx2_ch_attach(device_t dev)
521{
522    struct ata_channel *ch = device_get_softc(dev);
523
524    if (ata_pci_ch_attach(dev))
525	return ENXIO;
526
527    ch->hw.status = ata_promise_tx2_status;
528    return 0;
529}
530
531static int
532ata_promise_tx2_status(device_t dev)
533{
534    struct ata_channel *ch = device_get_softc(dev);
535
536    ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
537    if (ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x20) {
538	return ata_pci_status(dev);
539    }
540    return 0;
541}
542
543static int
544ata_promise_mio_ch_attach(device_t dev)
545{
546    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
547    struct ata_channel *ch = device_get_softc(dev);
548    int offset = (ctlr->chip->cfg2 & PR_SX4X) ? 0x000c0000 : 0;
549    int i;
550
551    ata_promise_mio_dmainit(dev);
552
553    for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
554	ch->r_io[i].res = ctlr->r_res2;
555	ch->r_io[i].offset = offset + 0x0200 + (i << 2) + (ch->unit << 7);
556    }
557    ch->r_io[ATA_CONTROL].res = ctlr->r_res2;
558    ch->r_io[ATA_CONTROL].offset = offset + 0x0238 + (ch->unit << 7);
559    ch->r_io[ATA_IDX_ADDR].res = ctlr->r_res2;
560    ata_default_registers(dev);
561    if ((ctlr->chip->cfg2 & (PR_SATA | PR_SATA2)) ||
562	((ctlr->chip->cfg2 & (PR_CMBO | PR_CMBO2)) && ch->unit < 2)) {
563	ch->r_io[ATA_SSTATUS].res = ctlr->r_res2;
564	ch->r_io[ATA_SSTATUS].offset = 0x400 + (ch->unit << 8);
565	ch->r_io[ATA_SERROR].res = ctlr->r_res2;
566	ch->r_io[ATA_SERROR].offset = 0x404 + (ch->unit << 8);
567	ch->r_io[ATA_SCONTROL].res = ctlr->r_res2;
568	ch->r_io[ATA_SCONTROL].offset = 0x408 + (ch->unit << 8);
569	ch->flags |= ATA_NO_SLAVE;
570    }
571    ch->flags |= ATA_USE_16BIT;
572
573    ata_generic_hw(dev);
574    if (ctlr->chip->cfg2 & PR_SX4X) {
575	ch->hw.command = ata_promise_sx4_command;
576    }
577    else {
578	ch->hw.command = ata_promise_mio_command;
579	ch->hw.status = ata_promise_mio_status;
580	ch->hw.softreset = ata_promise_mio_softreset;
581	ch->hw.pm_read = ata_promise_mio_pm_read;
582	ch->hw.pm_write = ata_promise_mio_pm_write;
583     }
584    return 0;
585}
586
587static int
588ata_promise_mio_ch_detach(device_t dev)
589{
590
591    ata_dmafini(dev);
592    return (0);
593}
594
595static void
596ata_promise_mio_intr(void *data)
597{
598    struct ata_pci_controller *ctlr = data;
599    struct ata_channel *ch;
600    u_int32_t vector;
601    int unit, fake_reg;
602
603    switch (ctlr->chip->cfg2) {
604    case PR_PATA:
605    case PR_CMBO:
606    case PR_SATA:
607	fake_reg = 0x60;
608	break;
609    case PR_CMBO2:
610    case PR_SATA2:
611    default:
612	fake_reg = 0x54;
613	break;
614    }
615
616    /*
617     * since reading interrupt status register on early "mio" chips
618     * clears the status bits we cannot read it for each channel later on
619     * in the generic interrupt routine.
620     * store the bits in an unused register in the chip so we can read
621     * it from there safely to get around this "feature".
622     */
623    vector = ATA_INL(ctlr->r_res2, 0x040);
624    ATA_OUTL(ctlr->r_res2, 0x040, vector);
625    ATA_OUTL(ctlr->r_res2, fake_reg, vector);
626
627    for (unit = 0; unit < ctlr->channels; unit++) {
628	if ((ch = ctlr->interrupt[unit].argument))
629	    ctlr->interrupt[unit].function(ch);
630    }
631
632    ATA_OUTL(ctlr->r_res2, fake_reg, 0xffffffff);
633}
634
635static int
636ata_promise_mio_status(device_t dev)
637{
638    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
639    struct ata_channel *ch = device_get_softc(dev);
640    u_int32_t fake_reg, stat_reg, vector, status;
641
642    switch (ctlr->chip->cfg2) {
643    case PR_PATA:
644    case PR_CMBO:
645    case PR_SATA:
646	fake_reg = 0x60;
647	stat_reg = 0x6c;
648	break;
649    case PR_CMBO2:
650    case PR_SATA2:
651    default:
652	fake_reg = 0x54;
653	stat_reg = 0x60;
654	break;
655    }
656
657    /* read and acknowledge interrupt */
658    vector = ATA_INL(ctlr->r_res2, fake_reg);
659
660    /* read and clear interface status */
661    status = ATA_INL(ctlr->r_res2, stat_reg);
662    ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
663
664    /* check for and handle disconnect events */
665    if (status & (0x00000001 << ch->unit)) {
666	if (bootverbose)
667	    device_printf(dev, "DISCONNECT requested\n");
668	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
669    }
670
671    /* check for and handle connect events */
672    if (status & (0x00000010 << ch->unit)) {
673	if (bootverbose)
674	    device_printf(dev, "CONNECT requested\n");
675	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
676    }
677
678    /* do we have any device action ? */
679    return (vector & (1 << (ch->unit + 1)));
680}
681
682static int
683ata_promise_mio_command(struct ata_request *request)
684{
685    struct ata_pci_controller *ctlr=device_get_softc(GRANDPARENT(request->dev));
686    struct ata_channel *ch = device_get_softc(request->parent);
687    struct ata_device *atadev = device_get_softc(request->dev);
688
689    u_int32_t *wordp = (u_int32_t *)ch->dma.work;
690
691    ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
692
693    if ((ctlr->chip->cfg2 == PR_SATA2) ||
694        ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
695	/* set portmultiplier port */
696	ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), atadev->unit & 0x0f);
697    }
698
699    /* XXX SOS add ATAPI commands support later */
700    switch (request->u.ata.command) {
701    default:
702	return ata_generic_command(request);
703
704    case ATA_READ_DMA:
705    case ATA_READ_DMA48:
706	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
707	break;
708
709    case ATA_WRITE_DMA:
710    case ATA_WRITE_DMA48:
711	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
712	break;
713    }
714    wordp[1] = htole32(request->dma->sg_bus);
715    wordp[2] = 0;
716    ata_promise_apkt((u_int8_t*)wordp, request);
717
718    ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma.work_bus);
719    return 0;
720}
721
722static void
723ata_promise_mio_reset(device_t dev)
724{
725    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
726    struct ata_channel *ch = device_get_softc(dev);
727    struct ata_promise_sx4 *hpktp;
728
729    switch (ctlr->chip->cfg2) {
730    case PR_SX4X:
731
732	/* softreset channel ATA module */
733	hpktp = device_get_ivars(ctlr->dev);
734	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
735	ata_udelay(1000);
736	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
737		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
738		  ~0x00003f9f) | (ch->unit + 1));
739
740	/* softreset HOST module */ /* XXX SOS what about other outstandings */
741	mtx_lock(&hpktp->mtx);
742	ATA_OUTL(ctlr->r_res2, 0xc012c,
743		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
744	DELAY(10);
745	ATA_OUTL(ctlr->r_res2, 0xc012c,
746		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
747	hpktp->busy = 0;
748	mtx_unlock(&hpktp->mtx);
749	ata_generic_reset(dev);
750	break;
751
752    case PR_PATA:
753    case PR_CMBO:
754    case PR_SATA:
755	if ((ctlr->chip->cfg2 == PR_SATA) ||
756	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
757
758	    /* mask plug/unplug intr */
759	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
760	}
761
762	/* softreset channels ATA module */
763	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
764	ata_udelay(10000);
765	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
766		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
767		  ~0x00003f9f) | (ch->unit + 1));
768
769	if ((ctlr->chip->cfg2 == PR_SATA) ||
770	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
771
772	    if (ata_sata_phy_reset(dev, -1, 1))
773		ata_generic_reset(dev);
774
775	    /* reset and enable plug/unplug intr */
776	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
777	}
778	else
779	    ata_generic_reset(dev);
780	break;
781
782    case PR_CMBO2:
783    case PR_SATA2:
784	if ((ctlr->chip->cfg2 == PR_SATA2) ||
785	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
786	    /* set portmultiplier port */
787	    //ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
788
789	    /* mask plug/unplug intr */
790	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
791	}
792
793	/* softreset channels ATA module */
794	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
795	ata_udelay(10000);
796	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
797		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
798		  ~0x00003f9f) | (ch->unit + 1));
799
800	if ((ctlr->chip->cfg2 == PR_SATA2) ||
801	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
802
803	    /* set PHY mode to "improved" */
804	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
805		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
806		     ~0x00000003) | 0x00000001);
807
808	    if (ata_sata_phy_reset(dev, -1, 1)) {
809		u_int32_t signature = ch->hw.softreset(dev, ATA_PM);
810
811		if (1 | bootverbose)
812        	    device_printf(dev, "SIGNATURE: %08x\n", signature);
813
814		switch (signature >> 16) {
815		case 0x0000:
816		    ch->devices = ATA_ATA_MASTER;
817		    break;
818		case 0x9669:
819		    ch->devices = ATA_PORTMULTIPLIER;
820		    ata_pm_identify(dev);
821		    break;
822		case 0xeb14:
823		    ch->devices = ATA_ATAPI_MASTER;
824		    break;
825		default: /* SOS XXX */
826		    if (bootverbose)
827			device_printf(dev,
828				      "No signature, assuming disk device\n");
829		    ch->devices = ATA_ATA_MASTER;
830		}
831		if (bootverbose)
832		    device_printf(dev, "promise_mio_reset devices=%08x\n",
833		    		  ch->devices);
834
835	    }
836
837	    /* reset and enable plug/unplug intr */
838	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
839
840	    ///* set portmultiplier port */
841	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
842	}
843	else
844	    ata_generic_reset(dev);
845	break;
846
847    }
848}
849
850static int
851ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result)
852{
853    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
854    struct ata_channel *ch = device_get_softc(dev);
855    int timeout = 0;
856
857    /* set portmultiplier port */
858    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
859
860    ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
861    ATA_IDX_OUTB(ch, ATA_DRIVE, port);
862
863    ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_READ_PM);
864
865    while (timeout < 1000000) {
866	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
867	if (!(status & ATA_S_BUSY))
868	    break;
869	timeout += 1000;
870	DELAY(1000);
871    }
872    if (timeout >= 1000000)
873	return ATA_E_ABORT;
874
875    *result = ATA_IDX_INB(ch, ATA_COUNT) |
876	      (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
877	      (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
878	      (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
879    return 0;
880}
881
882static int
883ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t value)
884{
885    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
886    struct ata_channel *ch = device_get_softc(dev);
887    int timeout = 0;
888
889    /* set portmultiplier port */
890    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
891
892    ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
893    ATA_IDX_OUTB(ch, ATA_DRIVE, port);
894    ATA_IDX_OUTB(ch, ATA_COUNT, value & 0xff);
895    ATA_IDX_OUTB(ch, ATA_SECTOR, (value >> 8) & 0xff);
896    ATA_IDX_OUTB(ch, ATA_CYL_LSB, (value >> 16) & 0xff);
897    ATA_IDX_OUTB(ch, ATA_CYL_MSB, (value >> 24) & 0xff);
898
899    ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_WRITE_PM);
900
901    while (timeout < 1000000) {
902	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
903	if (!(status & ATA_S_BUSY))
904	    break;
905	timeout += 1000;
906	DELAY(1000);
907    }
908    if (timeout >= 1000000)
909	return ATA_E_ABORT;
910
911    return ATA_IDX_INB(ch, ATA_ERROR);
912}
913
914/* must be called with ATA channel locked and state_mtx held */
915static u_int32_t
916ata_promise_mio_softreset(device_t dev, int port)
917{
918    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
919    struct ata_channel *ch = device_get_softc(dev);
920    int timeout;
921
922    /* set portmultiplier port */
923    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), port & 0x0f);
924
925    /* softreset device on this channel */
926    ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | ATA_DEV(ATA_MASTER));
927    DELAY(10);
928    ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS | ATA_A_RESET);
929    ata_udelay(10000);
930    ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS);
931    ata_udelay(150000);
932    ATA_IDX_INB(ch, ATA_ERROR);
933
934    /* wait for BUSY to go inactive */
935    for (timeout = 0; timeout < 100; timeout++) {
936	u_int8_t err, stat;
937
938	err = ATA_IDX_INB(ch, ATA_ERROR);
939	stat = ATA_IDX_INB(ch, ATA_STATUS);
940
941	//if (stat == err && timeout > (stat & ATA_S_BUSY ? 100 : 10))
942	    //break;
943
944	if (!(stat & ATA_S_BUSY)) {
945	    //if ((err & 0x7f) == ATA_E_ILI) {
946		return ATA_IDX_INB(ch, ATA_COUNT) |
947		       (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
948		       (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
949		       (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
950	    //}
951	    //else if (stat & 0x0f) {
952		//stat |= ATA_S_BUSY;
953	    //}
954	}
955
956	if (!(stat & ATA_S_BUSY) || (stat == 0xff && timeout > 10))
957	    break;
958	ata_udelay(100000);
959    }
960    return -1;
961}
962
963static void
964ata_promise_mio_dmainit(device_t dev)
965{
966    struct ata_channel *ch = device_get_softc(dev);
967
968    ata_dmainit(dev);
969    /* note start and stop are not used here */
970    ch->dma.setprd = ata_promise_mio_setprd;
971}
972
973
974#define MAXLASTSGSIZE (32 * sizeof(u_int32_t))
975static void
976ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
977{
978    struct ata_dmasetprd_args *args = xsc;
979    struct ata_dma_prdentry *prd = args->dmatab;
980    int i;
981
982    if ((args->error = error))
983	return;
984
985    for (i = 0; i < nsegs; i++) {
986	prd[i].addr = htole32(segs[i].ds_addr);
987	prd[i].count = htole32(segs[i].ds_len);
988    }
989    if (segs[i - 1].ds_len > MAXLASTSGSIZE) {
990	//printf("split last SG element of %u\n", segs[i - 1].ds_len);
991	prd[i - 1].count = htole32(segs[i - 1].ds_len - MAXLASTSGSIZE);
992	prd[i].count = htole32(MAXLASTSGSIZE);
993	prd[i].addr = htole32(segs[i - 1].ds_addr +
994			      (segs[i - 1].ds_len - MAXLASTSGSIZE));
995	nsegs++;
996	i++;
997    }
998    prd[i - 1].count |= htole32(ATA_DMA_EOT);
999    KASSERT(nsegs <= ATA_DMA_ENTRIES, ("too many DMA segment entries\n"));
1000    args->nsegs = nsegs;
1001}
1002
1003static void
1004ata_promise_mio_setmode(device_t dev, int mode)
1005{
1006    device_t gparent = GRANDPARENT(dev);
1007    struct ata_pci_controller *ctlr = device_get_softc(gparent);
1008    struct ata_channel *ch = device_get_softc(device_get_parent(dev));
1009
1010    if ( (ctlr->chip->cfg2 == PR_SATA) ||
1011	((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1012	(ctlr->chip->cfg2 == PR_SATA2) ||
1013	((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1014	ata_sata_setmode(dev, mode);
1015    else
1016	ata_promise_setmode(dev, mode);
1017}
1018
1019static void
1020ata_promise_sx4_intr(void *data)
1021{
1022    struct ata_pci_controller *ctlr = data;
1023    struct ata_channel *ch;
1024    u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
1025    int unit;
1026
1027    for (unit = 0; unit < ctlr->channels; unit++) {
1028	if (vector & (1 << (unit + 1)))
1029	    if ((ch = ctlr->interrupt[unit].argument))
1030		ctlr->interrupt[unit].function(ch);
1031	if (vector & (1 << (unit + 5)))
1032	    if ((ch = ctlr->interrupt[unit].argument))
1033		ata_promise_queue_hpkt(ctlr,
1034				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1035					       ATA_PDC_HPKT_OFFSET));
1036	if (vector & (1 << (unit + 9))) {
1037	    ata_promise_next_hpkt(ctlr);
1038	    if ((ch = ctlr->interrupt[unit].argument))
1039		ctlr->interrupt[unit].function(ch);
1040	}
1041	if (vector & (1 << (unit + 13))) {
1042	    ata_promise_next_hpkt(ctlr);
1043	    if ((ch = ctlr->interrupt[unit].argument))
1044		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1045			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1046			 ATA_PDC_APKT_OFFSET));
1047	}
1048    }
1049}
1050
1051static int
1052ata_promise_sx4_command(struct ata_request *request)
1053{
1054    device_t gparent = GRANDPARENT(request->dev);
1055    struct ata_pci_controller *ctlr = device_get_softc(gparent);
1056    struct ata_channel *ch = device_get_softc(request->parent);
1057    struct ata_dma_prdentry *prd = request->dma->sg;
1058    caddr_t window = rman_get_virtual(ctlr->r_res1);
1059    u_int32_t *wordp;
1060    int i, idx, length = 0;
1061
1062    /* XXX SOS add ATAPI commands support later */
1063    switch (request->u.ata.command) {
1064
1065    default:
1066	return -1;
1067
1068    case ATA_ATA_IDENTIFY:
1069    case ATA_READ:
1070    case ATA_READ48:
1071    case ATA_READ_MUL:
1072    case ATA_READ_MUL48:
1073    case ATA_WRITE:
1074    case ATA_WRITE48:
1075    case ATA_WRITE_MUL:
1076    case ATA_WRITE_MUL48:
1077	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1078	return ata_generic_command(request);
1079
1080    case ATA_SETFEATURES:
1081    case ATA_FLUSHCACHE:
1082    case ATA_FLUSHCACHE48:
1083    case ATA_SLEEP:
1084    case ATA_SET_MULTI:
1085	wordp = (u_int32_t *)
1086	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1087	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
1088	wordp[1] = 0;
1089	wordp[2] = 0;
1090	ata_promise_apkt((u_int8_t *)wordp, request);
1091	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1092	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1093	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1094		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
1095	return 0;
1096
1097    case ATA_READ_DMA:
1098    case ATA_READ_DMA48:
1099    case ATA_WRITE_DMA:
1100    case ATA_WRITE_DMA48:
1101	wordp = (u_int32_t *)
1102	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
1103	i = idx = 0;
1104	do {
1105	    wordp[idx++] = prd[i].addr;
1106	    wordp[idx++] = prd[i].count;
1107	    length += (prd[i].count & ~ATA_DMA_EOT);
1108	} while (!(prd[i++].count & ATA_DMA_EOT));
1109
1110	wordp = (u_int32_t *)
1111	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
1112	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1113	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1114
1115	wordp = (u_int32_t *)
1116	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
1117	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1118	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1119
1120	wordp = (u_int32_t *)
1121	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
1122	if (request->flags & ATA_R_READ)
1123	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
1124	if (request->flags & ATA_R_WRITE)
1125	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
1126	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
1127	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
1128	wordp[3] = 0;
1129
1130	wordp = (u_int32_t *)
1131	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1132	if (request->flags & ATA_R_READ)
1133	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
1134	if (request->flags & ATA_R_WRITE)
1135	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
1136	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
1137	wordp[2] = 0;
1138	ata_promise_apkt((u_int8_t *)wordp, request);
1139	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1140
1141	if (request->flags & ATA_R_READ) {
1142	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
1143	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
1144	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1145		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
1146	}
1147	if (request->flags & ATA_R_WRITE) {
1148	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
1149	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
1150	    ata_promise_queue_hpkt(ctlr,
1151		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
1152	}
1153	return 0;
1154    }
1155}
1156
1157static int
1158ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
1159{
1160    struct ata_device *atadev = device_get_softc(request->dev);
1161    int i = 12;
1162
1163    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
1164    bytep[i++] = ATA_D_IBM | ATA_D_LBA | ATA_DEV(atadev->unit);
1165    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
1166    bytep[i++] = ATA_A_4BIT;
1167
1168    if (atadev->flags & ATA_D_48BIT_ACTIVE) {
1169	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1170	bytep[i++] = request->u.ata.feature >> 8;
1171	bytep[i++] = request->u.ata.feature;
1172	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
1173	bytep[i++] = request->u.ata.count >> 8;
1174	bytep[i++] = request->u.ata.count;
1175	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1176	bytep[i++] = request->u.ata.lba >> 24;
1177	bytep[i++] = request->u.ata.lba;
1178	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1179	bytep[i++] = request->u.ata.lba >> 32;
1180	bytep[i++] = request->u.ata.lba >> 8;
1181	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1182	bytep[i++] = request->u.ata.lba >> 40;
1183	bytep[i++] = request->u.ata.lba >> 16;
1184	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1185	bytep[i++] = ATA_D_LBA | ATA_DEV(atadev->unit);
1186    }
1187    else {
1188	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1189	bytep[i++] = request->u.ata.feature;
1190	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
1191	bytep[i++] = request->u.ata.count;
1192	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1193	bytep[i++] = request->u.ata.lba;
1194	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1195	bytep[i++] = request->u.ata.lba >> 8;
1196	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1197	bytep[i++] = request->u.ata.lba >> 16;
1198	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1199	bytep[i++] = (atadev->flags & ATA_D_USE_CHS ? 0 : ATA_D_LBA) |
1200		     ATA_D_IBM | ATA_DEV(atadev->unit) |
1201		     ((request->u.ata.lba >> 24)&0xf);
1202    }
1203    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
1204    bytep[i++] = request->u.ata.command;
1205    return i;
1206}
1207
1208static void
1209ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
1210{
1211    struct ata_promise_sx4 *hpktp = device_get_ivars(ctlr->dev);
1212
1213    mtx_lock(&hpktp->mtx);
1214    if (hpktp->busy) {
1215	struct host_packet *hp =
1216	    malloc(sizeof(struct host_packet), M_TEMP, M_NOWAIT | M_ZERO);
1217	hp->addr = hpkt;
1218	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
1219    }
1220    else {
1221	hpktp->busy = 1;
1222	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
1223    }
1224    mtx_unlock(&hpktp->mtx);
1225}
1226
1227static void
1228ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
1229{
1230    struct ata_promise_sx4 *hpktp = device_get_ivars(ctlr->dev);
1231    struct host_packet *hp;
1232
1233    mtx_lock(&hpktp->mtx);
1234    if ((hp = TAILQ_FIRST(&hpktp->queue))) {
1235	TAILQ_REMOVE(&hpktp->queue, hp, chain);
1236	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
1237	free(hp, M_TEMP);
1238    }
1239    else
1240	hpktp->busy = 0;
1241    mtx_unlock(&hpktp->mtx);
1242}
1243
1244ATA_DECLARE_DRIVER(ata_promise);
1245