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("$FreeBSD$");
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 * 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    const struct ata_chip_id *idx;
133    static const 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 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#ifdef __sparc64__
253	if (ctlr->chip->cfg2 == PR_SX4X &&
254	    !bus_space_map(rman_get_bustag(ctlr->r_res1),
255	    rman_get_bushandle(ctlr->r_res1), rman_get_size(ctlr->r_res1),
256	    BUS_SPACE_MAP_LINEAR, NULL))
257		goto failnfree;
258#endif
259
260	ctlr->r_type2 = SYS_RES_MEMORY;
261	ctlr->r_rid2 = PCIR_BAR(3);
262	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
263						    &ctlr->r_rid2, RF_ACTIVE)))
264	    goto failnfree;
265
266	if (ctlr->chip->cfg2 == PR_SX4X) {
267	    struct ata_promise_sx4 *hpkt;
268	    u_int32_t dimm = ATA_INL(ctlr->r_res2, 0x000c0080);
269
270	    if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
271		bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
272			       ata_promise_sx4_intr, ctlr, &ctlr->handle)) {
273		device_printf(dev, "unable to setup interrupt\n");
274		goto failnfree;
275	    }
276
277	    /* print info about cache memory */
278	    device_printf(dev, "DIMM size %dMB @ 0x%08x%s\n",
279			  (((dimm >> 16) & 0xff)-((dimm >> 24) & 0xff)+1) << 4,
280			  ((dimm >> 24) & 0xff),
281			  ATA_INL(ctlr->r_res2, 0x000c0088) & (1<<16) ?
282			  " ECC enabled" : "" );
283
284	    /* adjust cache memory parameters */
285	    ATA_OUTL(ctlr->r_res2, 0x000c000c,
286		     (ATA_INL(ctlr->r_res2, 0x000c000c) & 0xffff0000));
287
288	    /* setup host packet controls */
289	    hpkt = malloc(sizeof(struct ata_promise_sx4),
290			  M_ATAPCI, M_NOWAIT | M_ZERO);
291	    if (hpkt == NULL) {
292		device_printf(dev, "Cannot allocate HPKT\n");
293		goto failnfree;
294	    }
295	    mtx_init(&hpkt->mtx, "ATA promise HPKT lock", NULL, MTX_DEF);
296	    TAILQ_INIT(&hpkt->queue);
297	    hpkt->busy = 0;
298	    ctlr->chipset_data = hpkt;
299	    ctlr->ch_attach = ata_promise_mio_ch_attach;
300	    ctlr->ch_detach = ata_promise_mio_ch_detach;
301	    ctlr->reset = ata_promise_mio_reset;
302	    ctlr->setmode = ata_promise_setmode;
303	    ctlr->channels = 4;
304	    return 0;
305	}
306
307	/* mio type controllers need an interrupt intercept */
308	if (bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle) ||
309	    bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL,
310			       ata_promise_mio_intr, ctlr, &ctlr->handle)) {
311		device_printf(dev, "unable to setup interrupt\n");
312		goto failnfree;
313	}
314
315	switch (ctlr->chip->cfg2) {
316	case PR_PATA:
317	    ctlr->channels = ((ATA_INL(ctlr->r_res2, 0x48) & 0x01) > 0) +
318			     ((ATA_INL(ctlr->r_res2, 0x48) & 0x02) > 0) + 2;
319	    goto sata150;
320	case PR_CMBO:
321	    ctlr->channels = 3;
322	    goto sata150;
323	case PR_SATA:
324	    ctlr->channels = 4;
325sata150:
326	    stat_reg = 0x6c;
327	    break;
328
329	case PR_CMBO2:
330	    ctlr->channels = 3;
331	    goto sataii;
332	case PR_SATA2:
333	default:
334	    ctlr->channels = 4;
335sataii:
336	    stat_reg = 0x60;
337	    break;
338	}
339
340	/* prime fake interrupt register */
341	ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
342
343	/* clear SATA status and unmask interrupts */
344	ATA_OUTL(ctlr->r_res2, stat_reg, 0x000000ff);
345
346	/* enable "long burst length" on gen2 chips */
347	if ((ctlr->chip->cfg2 == PR_SATA2) || (ctlr->chip->cfg2 == PR_CMBO2))
348	    ATA_OUTL(ctlr->r_res2, 0x44, ATA_INL(ctlr->r_res2, 0x44) | 0x2000);
349
350	ctlr->ch_attach = ata_promise_mio_ch_attach;
351	ctlr->ch_detach = ata_promise_mio_ch_detach;
352	ctlr->reset = ata_promise_mio_reset;
353	ctlr->setmode = ata_promise_mio_setmode;
354	ctlr->getrev = ata_promise_mio_getrev;
355
356	return 0;
357    }
358
359failnfree:
360    if (ctlr->r_res2)
361	bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2);
362    if (ctlr->r_res1)
363	bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1);
364    return ENXIO;
365}
366
367static int
368ata_promise_ch_attach(device_t dev)
369{
370    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
371    struct ata_channel *ch = device_get_softc(dev);
372
373    if (ata_pci_ch_attach(dev))
374	return ENXIO;
375
376    if (ctlr->chip->cfg1 == PR_NEW) {
377        ch->dma.start = ata_promise_dmastart;
378        ch->dma.stop = ata_promise_dmastop;
379        ch->dma.reset = ata_promise_dmareset;
380    }
381
382    ch->hw.status = ata_promise_status;
383    ch->flags |= ATA_NO_ATAPI_DMA;
384    ch->flags |= ATA_CHECKS_CABLE;
385    return 0;
386}
387
388static int
389ata_promise_status(device_t dev)
390{
391    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
392    struct ata_channel *ch = device_get_softc(dev);
393
394    if (ATA_INL(ctlr->r_res1, 0x1c) & (ch->unit ? 0x00004000 : 0x00000400)) {
395	return ata_pci_status(dev);
396    }
397    return 0;
398}
399
400static int
401ata_promise_dmastart(struct ata_request *request)
402{
403    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
404    struct ata_channel *ch = device_get_softc(request->parent);
405
406    if (request->flags & ATA_R_48BIT) {
407	ATA_OUTB(ctlr->r_res1, 0x11,
408		 ATA_INB(ctlr->r_res1, 0x11) | (ch->unit ? 0x08 : 0x02));
409	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20,
410		 ((request->flags & ATA_R_READ) ? 0x05000000 : 0x06000000) |
411		 (request->bytecount >> 1));
412    }
413    ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) |
414		 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR)));
415    ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus);
416    ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
417		 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0) |
418		 ATA_BMCMD_START_STOP);
419    ch->dma.flags |= ATA_DMA_ACTIVE;
420    return 0;
421}
422
423static int
424ata_promise_dmastop(struct ata_request *request)
425{
426    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
427    struct ata_channel *ch = device_get_softc(request->parent);
428    int error;
429
430    if (request->flags & ATA_R_48BIT) {
431	ATA_OUTB(ctlr->r_res1, 0x11,
432		 ATA_INB(ctlr->r_res1, 0x11) & ~(ch->unit ? 0x08 : 0x02));
433	ATA_OUTL(ctlr->r_res1, ch->unit ? 0x24 : 0x20, 0);
434    }
435    error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT);
436    ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
437		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
438    ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
439    ch->dma.flags &= ~ATA_DMA_ACTIVE;
440    return error;
441}
442
443static void
444ata_promise_dmareset(device_t dev)
445{
446    struct ata_channel *ch = device_get_softc(dev);
447
448    ATA_IDX_OUTB(ch, ATA_BMCMD_PORT,
449		 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP);
450    ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR);
451    ch->flags &= ~ATA_DMA_ACTIVE;
452}
453
454static int
455ata_promise_setmode(device_t dev, int target, int mode)
456{
457    device_t parent = device_get_parent(dev);
458    struct ata_pci_controller *ctlr = device_get_softc(parent);
459    struct ata_channel *ch = device_get_softc(dev);
460    int devno = (ch->unit << 1) + target;
461    static const uint32_t timings[][2] = {
462    /*    PR_OLD      PR_NEW               mode */
463	{ 0x004ff329, 0x004fff2f },     /* PIO 0 */
464	{ 0x004fec25, 0x004ff82a },     /* PIO 1 */
465	{ 0x004fe823, 0x004ff026 },     /* PIO 2 */
466	{ 0x004fe622, 0x004fec24 },     /* PIO 3 */
467	{ 0x004fe421, 0x004fe822 },     /* PIO 4 */
468	{ 0x004567f3, 0x004acef6 },     /* MWDMA 0 */
469	{ 0x004467f3, 0x0048cef6 },     /* MWDMA 1 */
470	{ 0x004367f3, 0x0046cef6 },     /* MWDMA 2 */
471	{ 0x004367f3, 0x0046cef6 },     /* UDMA 0 */
472	{ 0x004247f3, 0x00448ef6 },     /* UDMA 1 */
473	{ 0x004127f3, 0x00436ef6 },     /* UDMA 2 */
474	{ 0,          0x00424ef6 },     /* UDMA 3 */
475	{ 0,          0x004127f3 },     /* UDMA 4 */
476	{ 0,          0x004127f3 }      /* UDMA 5 */
477    };
478
479    mode = min(mode, ctlr->chip->max_dma);
480
481    switch (ctlr->chip->cfg1) {
482    case PR_OLD:
483    case PR_NEW:
484	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
485	    (pci_read_config(parent, 0x50, 2) &
486				 (ch->unit ? 1 << 11 : 1 << 10))) {
487	    ata_print_cable(dev, "controller");
488	    mode = ATA_UDMA2;
489	}
490	break;
491
492    case PR_TX:
493	ATA_IDX_OUTB(ch, ATA_BMDEVSPEC_0, 0x0b);
494	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
495	    ATA_IDX_INB(ch, ATA_BMDEVSPEC_1) & 0x04) {
496	    ata_print_cable(dev, "controller");
497	    mode = ATA_UDMA2;
498	}
499	break;
500
501    case PR_MIO:
502	if (ata_dma_check_80pin && mode > ATA_UDMA2 &&
503	    (ATA_INL(ctlr->r_res2,
504		     (ctlr->chip->cfg2 & PR_SX4X ? 0x000c0260 : 0x0260) +
505		     (ch->unit << 7)) & 0x01000000)) {
506	    ata_print_cable(dev, "controller");
507	    mode = ATA_UDMA2;
508	}
509	break;
510    }
511
512	if (ctlr->chip->cfg1 < PR_TX)
513	    pci_write_config(parent, 0x60 + (devno << 2),
514			     timings[ata_mode2idx(mode)][ctlr->chip->cfg1], 4);
515	return (mode);
516}
517
518static int
519ata_promise_tx2_ch_attach(device_t dev)
520{
521    struct ata_channel *ch = device_get_softc(dev);
522
523    if (ata_pci_ch_attach(dev))
524	return ENXIO;
525
526    ch->hw.status = ata_promise_tx2_status;
527    ch->flags |= ATA_CHECKS_CABLE;
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	ch->flags |= ATA_SATA;
571    }
572    ch->flags |= ATA_USE_16BIT;
573    ch->flags |= ATA_CHECKS_CABLE;
574
575    ata_generic_hw(dev);
576    if (ctlr->chip->cfg2 & PR_SX4X) {
577	ch->hw.command = ata_promise_sx4_command;
578    }
579    else {
580	ch->hw.command = ata_promise_mio_command;
581	ch->hw.status = ata_promise_mio_status;
582	ch->hw.softreset = ata_promise_mio_softreset;
583	ch->hw.pm_read = ata_promise_mio_pm_read;
584	ch->hw.pm_write = ata_promise_mio_pm_write;
585     }
586    return 0;
587}
588
589static int
590ata_promise_mio_ch_detach(device_t dev)
591{
592
593    ata_dmafini(dev);
594    return (0);
595}
596
597static void
598ata_promise_mio_intr(void *data)
599{
600    struct ata_pci_controller *ctlr = data;
601    struct ata_channel *ch;
602    u_int32_t vector;
603    int unit;
604
605    /*
606     * since reading interrupt status register on early "mio" chips
607     * clears the status bits we cannot read it for each channel later on
608     * in the generic interrupt routine.
609     */
610    vector = ATA_INL(ctlr->r_res2, 0x040);
611    ATA_OUTL(ctlr->r_res2, 0x040, vector);
612    ctlr->chipset_data = (void *)(uintptr_t)vector;
613
614    for (unit = 0; unit < ctlr->channels; unit++) {
615	if ((ch = ctlr->interrupt[unit].argument))
616	    ctlr->interrupt[unit].function(ch);
617    }
618
619    ctlr->chipset_data = (void *)(uintptr_t)0xffffffff;
620}
621
622static int
623ata_promise_mio_status(device_t dev)
624{
625    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
626    struct ata_channel *ch = device_get_softc(dev);
627    u_int32_t stat_reg, vector, status;
628
629    switch (ctlr->chip->cfg2) {
630    case PR_PATA:
631    case PR_CMBO:
632    case PR_SATA:
633	stat_reg = 0x6c;
634	break;
635    case PR_CMBO2:
636    case PR_SATA2:
637    default:
638	stat_reg = 0x60;
639	break;
640    }
641
642    /* read and acknowledge interrupt */
643    vector = (uint32_t)(uintptr_t)ctlr->chipset_data;
644
645    /* read and clear interface status */
646    status = ATA_INL(ctlr->r_res2, stat_reg);
647    ATA_OUTL(ctlr->r_res2, stat_reg, status & (0x00000011 << ch->unit));
648
649    /* check for and handle disconnect events */
650    if (status & (0x00000001 << ch->unit)) {
651	if (bootverbose)
652	    device_printf(dev, "DISCONNECT requested\n");
653	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
654    }
655
656    /* check for and handle connect events */
657    if (status & (0x00000010 << ch->unit)) {
658	if (bootverbose)
659	    device_printf(dev, "CONNECT requested\n");
660	taskqueue_enqueue(taskqueue_thread, &ch->conntask);
661    }
662
663    /* do we have any device action ? */
664    return (vector & (1 << (ch->unit + 1)));
665}
666
667static int
668ata_promise_mio_command(struct ata_request *request)
669{
670    struct ata_pci_controller *ctlr=device_get_softc(device_get_parent(request->parent));
671    struct ata_channel *ch = device_get_softc(request->parent);
672
673    u_int32_t *wordp = (u_int32_t *)ch->dma.work;
674
675    ATA_OUTL(ctlr->r_res2, (ch->unit + 1) << 2, 0x00000001);
676
677    if ((ctlr->chip->cfg2 == PR_SATA2) ||
678        ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
679	/* set portmultiplier port */
680	ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), request->unit & 0x0f);
681    }
682
683    /* XXX SOS add ATAPI commands support later */
684    switch (request->u.ata.command) {
685    default:
686	return ata_generic_command(request);
687
688    case ATA_READ_DMA:
689    case ATA_READ_DMA48:
690	wordp[0] = htole32(0x04 | ((ch->unit + 1) << 16) | (0x00 << 24));
691	break;
692
693    case ATA_WRITE_DMA:
694    case ATA_WRITE_DMA48:
695	wordp[0] = htole32(0x00 | ((ch->unit + 1) << 16) | (0x00 << 24));
696	break;
697    }
698    wordp[1] = htole32(request->dma->sg_bus);
699    wordp[2] = 0;
700    ata_promise_apkt((u_int8_t*)wordp, request);
701
702    ATA_OUTL(ctlr->r_res2, 0x0240 + (ch->unit << 7), ch->dma.work_bus);
703    return 0;
704}
705
706static void
707ata_promise_mio_reset(device_t dev)
708{
709    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
710    struct ata_channel *ch = device_get_softc(dev);
711    struct ata_promise_sx4 *hpktp;
712
713    switch (ctlr->chip->cfg2) {
714    case PR_SX4X:
715
716	/* softreset channel ATA module */
717	hpktp = ctlr->chipset_data;
718	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7), ch->unit + 1);
719	ata_udelay(1000);
720	ATA_OUTL(ctlr->r_res2, 0xc0260 + (ch->unit << 7),
721		 (ATA_INL(ctlr->r_res2, 0xc0260 + (ch->unit << 7)) &
722		  ~0x00003f9f) | (ch->unit + 1));
723
724	/* softreset HOST module */ /* XXX SOS what about other outstandings */
725	mtx_lock(&hpktp->mtx);
726	ATA_OUTL(ctlr->r_res2, 0xc012c,
727		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f) | (1 << 11));
728	DELAY(10);
729	ATA_OUTL(ctlr->r_res2, 0xc012c,
730		 (ATA_INL(ctlr->r_res2, 0xc012c) & ~0x00000f9f));
731	hpktp->busy = 0;
732	mtx_unlock(&hpktp->mtx);
733	ata_generic_reset(dev);
734	break;
735
736    case PR_PATA:
737    case PR_CMBO:
738    case PR_SATA:
739	if ((ctlr->chip->cfg2 == PR_SATA) ||
740	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
741
742	    /* mask plug/unplug intr */
743	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00110000 << ch->unit));
744	}
745
746	/* softreset channels ATA module */
747	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
748	ata_udelay(10000);
749	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
750		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
751		  ~0x00003f9f) | (ch->unit + 1));
752
753	if ((ctlr->chip->cfg2 == PR_SATA) ||
754	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2))) {
755
756	    if (ata_sata_phy_reset(dev, -1, 1))
757		ata_generic_reset(dev);
758	    else
759		ch->devices = 0;
760
761	    /* reset and enable plug/unplug intr */
762	    ATA_OUTL(ctlr->r_res2, 0x06c, (0x00000011 << ch->unit));
763	}
764	else
765	    ata_generic_reset(dev);
766	break;
767
768    case PR_CMBO2:
769    case PR_SATA2:
770	if ((ctlr->chip->cfg2 == PR_SATA2) ||
771	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
772	    /* set portmultiplier port */
773	    //ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
774
775	    /* mask plug/unplug intr */
776	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00110000 << ch->unit));
777	}
778
779	/* softreset channels ATA module */
780	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7), (1 << 11));
781	ata_udelay(10000);
782	ATA_OUTL(ctlr->r_res2, 0x0260 + (ch->unit << 7),
783		 (ATA_INL(ctlr->r_res2, 0x0260 + (ch->unit << 7)) &
784		  ~0x00003f9f) | (ch->unit + 1));
785
786	if ((ctlr->chip->cfg2 == PR_SATA2) ||
787	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2))) {
788
789	    /* set PHY mode to "improved" */
790	    ATA_OUTL(ctlr->r_res2, 0x414 + (ch->unit << 8),
791		     (ATA_INL(ctlr->r_res2, 0x414 + (ch->unit << 8)) &
792		     ~0x00000003) | 0x00000001);
793
794	    if (ata_sata_phy_reset(dev, -1, 1)) {
795		u_int32_t signature = ch->hw.softreset(dev, ATA_PM);
796
797		if (1 | bootverbose)
798        	    device_printf(dev, "SIGNATURE: %08x\n", signature);
799
800		switch (signature >> 16) {
801		case 0x0000:
802		    ch->devices = ATA_ATA_MASTER;
803		    break;
804		case 0x9669:
805		    ch->devices = ATA_PORTMULTIPLIER;
806		    ata_pm_identify(dev);
807		    break;
808		case 0xeb14:
809		    ch->devices = ATA_ATAPI_MASTER;
810		    break;
811		default: /* SOS XXX */
812		    if (bootverbose)
813			device_printf(dev,
814				      "No signature, assuming disk device\n");
815		    ch->devices = ATA_ATA_MASTER;
816		}
817		if (bootverbose)
818		    device_printf(dev, "promise_mio_reset devices=%08x\n",
819		    		  ch->devices);
820
821	    } else
822		ch->devices = 0;
823
824	    /* reset and enable plug/unplug intr */
825	    ATA_OUTL(ctlr->r_res2, 0x060, (0x00000011 << ch->unit));
826
827	    ///* set portmultiplier port */
828	    ATA_OUTL(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x00);
829	}
830	else
831	    ata_generic_reset(dev);
832	break;
833
834    }
835}
836
837static int
838ata_promise_mio_pm_read(device_t dev, int port, int reg, u_int32_t *result)
839{
840    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
841    struct ata_channel *ch = device_get_softc(dev);
842    int timeout = 0;
843
844    if (port < 0) {
845	*result = ATA_IDX_INL(ch, reg);
846	return (0);
847    }
848    if (port < ATA_PM) {
849	switch (reg) {
850	case ATA_SSTATUS:
851	    reg = 0;
852	    break;
853	case ATA_SERROR:
854	    reg = 1;
855	    break;
856	case ATA_SCONTROL:
857	    reg = 2;
858	    break;
859	default:
860	    return (EINVAL);
861	}
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
869    ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_READ_PM);
870
871    while (timeout < 1000000) {
872	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
873	if (!(status & ATA_S_BUSY))
874	    break;
875	timeout += 1000;
876	DELAY(1000);
877    }
878    if (timeout >= 1000000)
879	return ATA_E_ABORT;
880
881    *result = ATA_IDX_INB(ch, ATA_COUNT) |
882	      (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
883	      (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
884	      (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
885    return 0;
886}
887
888static int
889ata_promise_mio_pm_write(device_t dev, int port, int reg, u_int32_t value)
890{
891    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
892    struct ata_channel *ch = device_get_softc(dev);
893    int timeout = 0;
894
895    if (port < 0) {
896	ATA_IDX_OUTL(ch, reg, value);
897	return (0);
898    }
899    if (port < ATA_PM) {
900	switch (reg) {
901	case ATA_SSTATUS:
902	    reg = 0;
903	    break;
904	case ATA_SERROR:
905	    reg = 1;
906	    break;
907	case ATA_SCONTROL:
908	    reg = 2;
909	    break;
910	default:
911	    return (EINVAL);
912	}
913    }
914    /* set portmultiplier port */
915    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), 0x0f);
916
917    ATA_IDX_OUTB(ch, ATA_FEATURE, reg);
918    ATA_IDX_OUTB(ch, ATA_DRIVE, port);
919    ATA_IDX_OUTB(ch, ATA_COUNT, value & 0xff);
920    ATA_IDX_OUTB(ch, ATA_SECTOR, (value >> 8) & 0xff);
921    ATA_IDX_OUTB(ch, ATA_CYL_LSB, (value >> 16) & 0xff);
922    ATA_IDX_OUTB(ch, ATA_CYL_MSB, (value >> 24) & 0xff);
923
924    ATA_IDX_OUTB(ch, ATA_COMMAND, ATA_WRITE_PM);
925
926    while (timeout < 1000000) {
927	u_int8_t status = ATA_IDX_INB(ch, ATA_STATUS);
928	if (!(status & ATA_S_BUSY))
929	    break;
930	timeout += 1000;
931	DELAY(1000);
932    }
933    if (timeout >= 1000000)
934	return ATA_E_ABORT;
935
936    return ATA_IDX_INB(ch, ATA_ERROR);
937}
938
939/* must be called with ATA channel locked and state_mtx held */
940static u_int32_t
941ata_promise_mio_softreset(device_t dev, int port)
942{
943    struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
944    struct ata_channel *ch = device_get_softc(dev);
945    int timeout;
946
947    /* set portmultiplier port */
948    ATA_OUTB(ctlr->r_res2, 0x4e8 + (ch->unit << 8), port & 0x0f);
949
950    /* softreset device on this channel */
951    ATA_IDX_OUTB(ch, ATA_DRIVE, ATA_D_IBM | ATA_D_LBA | ATA_DEV(ATA_MASTER));
952    DELAY(10);
953    ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS | ATA_A_RESET);
954    ata_udelay(10000);
955    ATA_IDX_OUTB(ch, ATA_CONTROL, ATA_A_IDS);
956    ata_udelay(150000);
957    ATA_IDX_INB(ch, ATA_ERROR);
958
959    /* wait for BUSY to go inactive */
960    for (timeout = 0; timeout < 100; timeout++) {
961	u_int8_t err, stat;
962
963	err = ATA_IDX_INB(ch, ATA_ERROR);
964	stat = ATA_IDX_INB(ch, ATA_STATUS);
965
966	//if (stat == err && timeout > (stat & ATA_S_BUSY ? 100 : 10))
967	    //break;
968
969	if (!(stat & ATA_S_BUSY)) {
970	    //if ((err & 0x7f) == ATA_E_ILI) {
971		return ATA_IDX_INB(ch, ATA_COUNT) |
972		       (ATA_IDX_INB(ch, ATA_SECTOR) << 8) |
973		       (ATA_IDX_INB(ch, ATA_CYL_LSB) << 16) |
974		       (ATA_IDX_INB(ch, ATA_CYL_MSB) << 24);
975	    //}
976	    //else if (stat & 0x0f) {
977		//stat |= ATA_S_BUSY;
978	    //}
979	}
980
981	if (!(stat & ATA_S_BUSY) || (stat == 0xff && timeout > 10))
982	    break;
983	ata_udelay(100000);
984    }
985    return -1;
986}
987
988static void
989ata_promise_mio_dmainit(device_t dev)
990{
991    struct ata_channel *ch = device_get_softc(dev);
992
993    /* note start and stop are not used here */
994    ch->dma.setprd = ata_promise_mio_setprd;
995    ch->dma.max_iosize = 65536;
996    ata_dmainit(dev);
997}
998
999#define MAXLASTSGSIZE (32 * sizeof(u_int32_t))
1000static void
1001ata_promise_mio_setprd(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
1002{
1003    struct ata_dmasetprd_args *args = xsc;
1004    struct ata_dma_prdentry *prd = args->dmatab;
1005    int i;
1006
1007    if ((args->error = error))
1008	return;
1009
1010    for (i = 0; i < nsegs; i++) {
1011	prd[i].addr = htole32(segs[i].ds_addr);
1012	prd[i].count = htole32(segs[i].ds_len);
1013    }
1014    if (segs[i - 1].ds_len > MAXLASTSGSIZE) {
1015	//printf("split last SG element of %u\n", segs[i - 1].ds_len);
1016	prd[i - 1].count = htole32(segs[i - 1].ds_len - MAXLASTSGSIZE);
1017	prd[i].count = htole32(MAXLASTSGSIZE);
1018	prd[i].addr = htole32(segs[i - 1].ds_addr +
1019			      (segs[i - 1].ds_len - MAXLASTSGSIZE));
1020	nsegs++;
1021	i++;
1022    }
1023    prd[i - 1].count |= htole32(ATA_DMA_EOT);
1024    KASSERT(nsegs <= ATA_DMA_ENTRIES, ("too many DMA segment entries\n"));
1025    args->nsegs = nsegs;
1026}
1027
1028static int
1029ata_promise_mio_setmode(device_t dev, int target, int mode)
1030{
1031        struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1032        struct ata_channel *ch = device_get_softc(dev);
1033
1034        if ( (ctlr->chip->cfg2 == PR_SATA) ||
1035    	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1036	     (ctlr->chip->cfg2 == PR_SATA2) ||
1037	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1038		mode = ata_sata_setmode(dev, target, mode);
1039	else
1040		mode = ata_promise_setmode(dev, target, mode);
1041	return (mode);
1042}
1043
1044static int
1045ata_promise_mio_getrev(device_t dev, int target)
1046{
1047        struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
1048        struct ata_channel *ch = device_get_softc(dev);
1049
1050        if ( (ctlr->chip->cfg2 == PR_SATA) ||
1051    	    ((ctlr->chip->cfg2 == PR_CMBO) && (ch->unit < 2)) ||
1052	     (ctlr->chip->cfg2 == PR_SATA2) ||
1053	    ((ctlr->chip->cfg2 == PR_CMBO2) && (ch->unit < 2)))
1054		return (ata_sata_getrev(dev, target));
1055	else
1056		return (0);
1057}
1058
1059static void
1060ata_promise_sx4_intr(void *data)
1061{
1062    struct ata_pci_controller *ctlr = data;
1063    struct ata_channel *ch;
1064    u_int32_t vector = ATA_INL(ctlr->r_res2, 0x000c0480);
1065    int unit;
1066
1067    for (unit = 0; unit < ctlr->channels; unit++) {
1068	if (vector & (1 << (unit + 1)))
1069	    if ((ch = ctlr->interrupt[unit].argument))
1070		ctlr->interrupt[unit].function(ch);
1071	if (vector & (1 << (unit + 5)))
1072	    if ((ch = ctlr->interrupt[unit].argument))
1073		ata_promise_queue_hpkt(ctlr,
1074				       htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1075					       ATA_PDC_HPKT_OFFSET));
1076	if (vector & (1 << (unit + 9))) {
1077	    ata_promise_next_hpkt(ctlr);
1078	    if ((ch = ctlr->interrupt[unit].argument))
1079		ctlr->interrupt[unit].function(ch);
1080	}
1081	if (vector & (1 << (unit + 13))) {
1082	    ata_promise_next_hpkt(ctlr);
1083	    if ((ch = ctlr->interrupt[unit].argument))
1084		ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1085			 htole32((ch->unit * ATA_PDC_CHN_OFFSET) +
1086			 ATA_PDC_APKT_OFFSET));
1087	}
1088    }
1089}
1090
1091static int
1092ata_promise_sx4_command(struct ata_request *request)
1093{
1094    device_t gparent = device_get_parent(request->parent);
1095    struct ata_pci_controller *ctlr = device_get_softc(gparent);
1096    struct ata_channel *ch = device_get_softc(request->parent);
1097    struct ata_dma_prdentry *prd;
1098    caddr_t window = rman_get_virtual(ctlr->r_res1);
1099    u_int32_t *wordp;
1100    int i, idx, length = 0;
1101
1102    /* XXX SOS add ATAPI commands support later */
1103    switch (request->u.ata.command) {
1104
1105    default:
1106	return -1;
1107
1108    case ATA_ATA_IDENTIFY:
1109    case ATA_READ:
1110    case ATA_READ48:
1111    case ATA_READ_MUL:
1112    case ATA_READ_MUL48:
1113    case ATA_WRITE:
1114    case ATA_WRITE48:
1115    case ATA_WRITE_MUL:
1116    case ATA_WRITE_MUL48:
1117	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1118	return ata_generic_command(request);
1119
1120    case ATA_SETFEATURES:
1121    case ATA_FLUSHCACHE:
1122    case ATA_FLUSHCACHE48:
1123    case ATA_SLEEP:
1124    case ATA_SET_MULTI:
1125	wordp = (u_int32_t *)
1126	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1127	wordp[0] = htole32(0x08 | ((ch->unit + 1)<<16) | (0x00 << 24));
1128	wordp[1] = 0;
1129	wordp[2] = 0;
1130	ata_promise_apkt((u_int8_t *)wordp, request);
1131	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1132	ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit + 1) << 2), 0x00000001);
1133	ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1134		 htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_APKT_OFFSET));
1135	return 0;
1136
1137    case ATA_READ_DMA:
1138    case ATA_READ_DMA48:
1139    case ATA_WRITE_DMA:
1140    case ATA_WRITE_DMA48:
1141	prd = request->dma->sg;
1142	wordp = (u_int32_t *)
1143	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HSG_OFFSET);
1144	i = idx = 0;
1145	do {
1146	    wordp[idx++] = prd[i].addr;
1147	    wordp[idx++] = prd[i].count;
1148	    length += (prd[i].count & ~ATA_DMA_EOT);
1149	} while (!(prd[i++].count & ATA_DMA_EOT));
1150
1151	wordp = (u_int32_t *)
1152	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_LSG_OFFSET);
1153	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1154	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1155
1156	wordp = (u_int32_t *)
1157	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_ASG_OFFSET);
1158	wordp[0] = htole32((ch->unit * ATA_PDC_BUF_OFFSET) + ATA_PDC_BUF_BASE);
1159	wordp[1] = htole32(request->bytecount | ATA_DMA_EOT);
1160
1161	wordp = (u_int32_t *)
1162	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET);
1163	if (request->flags & ATA_R_READ)
1164	    wordp[0] = htole32(0x14 | ((ch->unit+9)<<16) | ((ch->unit+5)<<24));
1165	if (request->flags & ATA_R_WRITE)
1166	    wordp[0] = htole32(0x00 | ((ch->unit+13)<<16) | (0x00<<24));
1167	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_HSG_OFFSET);
1168	wordp[2] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_LSG_OFFSET);
1169	wordp[3] = 0;
1170
1171	wordp = (u_int32_t *)
1172	    (window + (ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET);
1173	if (request->flags & ATA_R_READ)
1174	    wordp[0] = htole32(0x04 | ((ch->unit+5)<<16) | (0x00<<24));
1175	if (request->flags & ATA_R_WRITE)
1176	    wordp[0] = htole32(0x10 | ((ch->unit+1)<<16) | ((ch->unit+13)<<24));
1177	wordp[1] = htole32((ch->unit * ATA_PDC_CHN_OFFSET)+ATA_PDC_ASG_OFFSET);
1178	wordp[2] = 0;
1179	ata_promise_apkt((u_int8_t *)wordp, request);
1180	ATA_OUTL(ctlr->r_res2, 0x000c0484, 0x00000001);
1181
1182	if (request->flags & ATA_R_READ) {
1183	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+5)<<2), 0x00000001);
1184	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+9)<<2), 0x00000001);
1185	    ATA_OUTL(ctlr->r_res2, 0x000c0240 + (ch->unit << 7),
1186		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_APKT_OFFSET));
1187	}
1188	if (request->flags & ATA_R_WRITE) {
1189	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+1)<<2), 0x00000001);
1190	    ATA_OUTL(ctlr->r_res2, 0x000c0400 + ((ch->unit+13)<<2), 0x00000001);
1191	    ata_promise_queue_hpkt(ctlr,
1192		htole32((ch->unit * ATA_PDC_CHN_OFFSET) + ATA_PDC_HPKT_OFFSET));
1193	}
1194	return 0;
1195    }
1196}
1197
1198static int
1199ata_promise_apkt(u_int8_t *bytep, struct ata_request *request)
1200{
1201    int i = 12;
1202
1203    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_PDC_WAIT_NBUSY|ATA_DRIVE;
1204    bytep[i++] = ATA_D_IBM | ATA_D_LBA | ATA_DEV(request->unit);
1205    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_CTL;
1206    bytep[i++] = ATA_A_4BIT;
1207
1208    if (request->flags & ATA_R_48BIT) {
1209	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1210	bytep[i++] = request->u.ata.feature >> 8;
1211	bytep[i++] = request->u.ata.feature;
1212	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_COUNT;
1213	bytep[i++] = request->u.ata.count >> 8;
1214	bytep[i++] = request->u.ata.count;
1215	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1216	bytep[i++] = request->u.ata.lba >> 24;
1217	bytep[i++] = request->u.ata.lba;
1218	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1219	bytep[i++] = request->u.ata.lba >> 32;
1220	bytep[i++] = request->u.ata.lba >> 8;
1221	bytep[i++] = ATA_PDC_2B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1222	bytep[i++] = request->u.ata.lba >> 40;
1223	bytep[i++] = request->u.ata.lba >> 16;
1224	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1225	bytep[i++] = ATA_D_LBA | ATA_DEV(request->unit);
1226    }
1227    else {
1228	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_FEATURE;
1229	bytep[i++] = request->u.ata.feature;
1230	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_COUNT;
1231	bytep[i++] = request->u.ata.count;
1232	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_SECTOR;
1233	bytep[i++] = request->u.ata.lba;
1234	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_LSB;
1235	bytep[i++] = request->u.ata.lba >> 8;
1236	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_CYL_MSB;
1237	bytep[i++] = request->u.ata.lba >> 16;
1238	bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_REG | ATA_DRIVE;
1239	bytep[i++] = ATA_D_LBA | ATA_D_IBM | ATA_DEV(request->unit) |
1240		     ((request->u.ata.lba >> 24)&0xf);
1241    }
1242    bytep[i++] = ATA_PDC_1B | ATA_PDC_WRITE_END | ATA_COMMAND;
1243    bytep[i++] = request->u.ata.command;
1244    return i;
1245}
1246
1247static void
1248ata_promise_queue_hpkt(struct ata_pci_controller *ctlr, u_int32_t hpkt)
1249{
1250    struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1251
1252    mtx_lock(&hpktp->mtx);
1253    if (hpktp->busy) {
1254	struct host_packet *hp =
1255	    malloc(sizeof(struct host_packet), M_TEMP, M_NOWAIT | M_ZERO);
1256	hp->addr = hpkt;
1257	TAILQ_INSERT_TAIL(&hpktp->queue, hp, chain);
1258    }
1259    else {
1260	hpktp->busy = 1;
1261	ATA_OUTL(ctlr->r_res2, 0x000c0100, hpkt);
1262    }
1263    mtx_unlock(&hpktp->mtx);
1264}
1265
1266static void
1267ata_promise_next_hpkt(struct ata_pci_controller *ctlr)
1268{
1269    struct ata_promise_sx4 *hpktp = ctlr->chipset_data;
1270    struct host_packet *hp;
1271
1272    mtx_lock(&hpktp->mtx);
1273    if ((hp = TAILQ_FIRST(&hpktp->queue))) {
1274	TAILQ_REMOVE(&hpktp->queue, hp, chain);
1275	ATA_OUTL(ctlr->r_res2, 0x000c0100, hp->addr);
1276	free(hp, M_TEMP);
1277    }
1278    else
1279	hpktp->busy = 0;
1280    mtx_unlock(&hpktp->mtx);
1281}
1282
1283ATA_DECLARE_DRIVER(ata_promise);
1284