1/*
2 * Copyright 2007, Haiku Inc. All rights reserved.
3 * Distributed under the terms of the MIT License.
4 *
5 * Authors:
6 *		JiSheng Zhang
7 *		J��r��me DUVAL
8 */
9/*-
10 * Copyright (c) 2003 Hidetoshi Shimokawa
11 * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
12 * All rights reserved.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 *    notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 *    notice, this list of conditions and the following disclaimer in the
21 *    documentation and/or other materials provided with the distribution.
22 * 3. All advertising materials mentioning features or use of this software
23 *    must display the acknowledgement as bellow:
24 *
25 *    This product includes software developed by K. Kobayashi and H. Shimokawa
26 *
27 * 4. The name of the author may not be used to endorse or promote products
28 *    derived from this software without specific prior written permission.
29 *
30 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
31 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
32 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
33 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
34 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
35 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
36 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
38 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
39 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
40 * POSSIBILITY OF SUCH DAMAGE.
41 *
42 * $FreeBSD: src/sys/dev/firewire/fwdev.c,v 1.52 2007/06/06 14:31:36 simokawa Exp $
43 *
44 */
45
46#include <sys/param.h>
47#include <sys/types.h>
48
49#include <Drivers.h>
50#include <OS.h>
51#include <KernelExport.h>
52#include <malloc.h>
53#include <module.h>
54#include <stdio.h>
55#include <ByteOrder.h>
56#include <string.h>
57#include <sys/ioccom.h>
58
59#include "queue.h"
60#include "firewire.h"
61#include "iec13213.h"
62#include "firewirereg.h"
63#include "fwdma.h"
64//#include "fwmem.h"
65#include "iec68113.h"
66
67#define TRACE(x...)
68//#define TRACE(x...) dprintf(x)
69
70#include "firewire_module.h"
71
72#define	FWNODE_INVAL 0xffff
73
74int32 api_version = B_CUR_DRIVER_API_VERSION;
75struct fw_module_info *gFirewire;
76const char fwname[] = "bus/fw/%ld";
77#define FWNAMEMAX 9
78static char ** devices;
79uint32 devices_count = 0;
80
81
82struct fw_drv1 {
83	struct firewire_comm *fc;
84	struct fw_xferq *ir;
85	struct fw_xferq *it;
86	struct fw_isobufreq bufreq;
87	STAILQ_HEAD(, fw_bind) binds;
88	STAILQ_HEAD(, fw_xfer) rq;
89	sem_id rqSem;
90};
91
92static int
93fwdev_allocbuf(struct fw_xferq *q,
94	struct fw_bufspec *b)
95{
96	int i;
97
98	if (q->flag & (FWXFERQ_RUNNING | FWXFERQ_EXTBUF))
99		return(EBUSY);
100
101	q->bulkxfer = (struct fw_bulkxfer *) malloc(
102		sizeof(struct fw_bulkxfer) * b->nchunk);
103	if (q->bulkxfer == NULL)
104		return(ENOMEM);
105
106	b->psize = roundup2(b->psize, sizeof(uint32_t));
107	q->buf = gFirewire->fwdma_malloc_multiseg(sizeof(uint32_t),
108			b->psize, b->nchunk * b->npacket);
109TRACE("fwdev_allocbuf %d\n", b->psize*b->nchunk*b->npacket);
110	if (q->buf == NULL) {
111		free(q->bulkxfer);
112		q->bulkxfer = NULL;
113		return(ENOMEM);
114	}
115	q->bnchunk = b->nchunk;
116	q->bnpacket = b->npacket;
117	q->psize = (b->psize + 3) & ~3;
118	q->queued = 0;
119
120	STAILQ_INIT(&q->stvalid);
121	STAILQ_INIT(&q->stfree);
122	STAILQ_INIT(&q->stdma);
123	q->stproc = NULL;
124
125	for (i = 0 ; i < q->bnchunk; i++) {
126		q->bulkxfer[i].poffset = i * q->bnpacket;
127		//q->bulkxfer[i].mbuf = NULL; //to be completed when find mbuf's counterpart
128		STAILQ_INSERT_TAIL(&q->stfree, &q->bulkxfer[i], link);
129	}
130
131	q->flag &= ~FWXFERQ_MODEMASK;
132	q->flag |= FWXFERQ_STREAM;
133	q->flag |= FWXFERQ_EXTBUF;
134
135	return (0);
136}
137
138static int
139fwdev_freebuf(struct fw_xferq *q)
140{
141	if (q->flag & FWXFERQ_EXTBUF) {
142		if (q->buf != NULL)
143			gFirewire->fwdma_free_multiseg(q->buf);
144		q->buf = NULL;
145		free(q->bulkxfer);
146		q->bulkxfer = NULL;
147		q->flag &= ~FWXFERQ_EXTBUF;
148		q->psize = 0;
149		q->maxq = FWMAXQUEUE;
150	}
151	return (0);
152}
153
154
155static status_t
156fw_open (const char *name, uint32 flags, void **cookie)
157{
158	int32 count = -1;
159	int32 i;
160	struct fw_drv1 *d;
161	struct firewire_softc *sc = NULL;
162
163	*cookie = NULL;
164	for (i = 0; i < devices_count; i++) {
165		if (strcmp(name, devices[i]) == 0) {
166			count = i;
167			break;
168		}
169	}
170
171	if (count < 0) {
172		return B_BAD_VALUE;
173	}
174
175	if (gFirewire->get_handle(count, &sc) != B_OK) {
176		return ENODEV;
177	}
178
179	if (sc == NULL)
180		return (ENXIO);
181
182	FW_GLOCK(sc->fc);
183	if (*cookie != NULL) {
184		FW_GUNLOCK(sc->fc);
185		return (EBUSY);
186	}
187	/* set dummy value for allocation */
188	*cookie = (void *)-1;
189	FW_GUNLOCK(sc->fc);
190
191	*cookie = malloc(sizeof(struct fw_drv1));
192	if (*cookie == NULL)
193		return (ENOMEM);
194	memset(*cookie, 0, sizeof(struct fw_drv1));
195
196	d = (struct fw_drv1 *)(*cookie);
197	d->fc = sc->fc;
198	STAILQ_INIT(&d->binds);
199	STAILQ_INIT(&d->rq);
200	d->rqSem = create_sem(0, "fw_raw rq");
201	if (d->rqSem < B_OK) {
202		dprintf("fwraw: failed creating rq semaphore\n");
203		free(*cookie);
204		return B_ERROR;
205	}
206
207	return B_OK;
208}
209
210
211static status_t
212fw_close (void *cookie)
213{
214	return B_OK;
215}
216
217
218static status_t
219fw_free(void *cookie)
220{
221	struct firewire_comm *fc;
222	struct fw_drv1 *d;
223	struct fw_xfer *xfer;
224	struct fw_bind *fwb;
225
226	TRACE("fw_free\n");
227	d = (struct fw_drv1 *)cookie;
228	delete_sem(d->rqSem);
229	fc = d->fc;
230
231	/* remove binding */
232	for (fwb = STAILQ_FIRST(&d->binds); fwb != NULL;
233			fwb = STAILQ_FIRST(&d->binds)) {
234		gFirewire->fw_bindremove(fc, fwb);
235		STAILQ_REMOVE_HEAD(&d->binds, chlist);
236		gFirewire->fw_xferlist_remove(&fwb->xferlist);
237		free(fwb);
238	}
239	if (d->ir != NULL) {
240		struct fw_xferq *ir = d->ir;
241
242		if ((ir->flag & FWXFERQ_OPEN) == 0)
243			return (EINVAL);
244		if (ir->flag & FWXFERQ_RUNNING) {
245			ir->flag &= ~FWXFERQ_RUNNING;
246			fc->irx_disable(fc, ir->dmach);
247		}
248		/* free extbuf */
249		fwdev_freebuf(ir);
250		/* drain receiving buffer */
251		for (xfer = STAILQ_FIRST(&ir->q);
252			xfer != NULL; xfer = STAILQ_FIRST(&ir->q)) {
253			ir->queued --;
254			STAILQ_REMOVE_HEAD(&ir->q, link);
255
256			xfer->resp = 0;
257			gFirewire->fw_xfer_done(xfer);
258		}
259		ir->flag &= ~(FWXFERQ_OPEN |
260			FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
261		d->ir = NULL;
262
263	}
264	if (d->it != NULL) {
265		struct fw_xferq *it = d->it;
266
267		if ((it->flag & FWXFERQ_OPEN) == 0)
268			return (EINVAL);
269		if (it->flag & FWXFERQ_RUNNING) {
270			it->flag &= ~FWXFERQ_RUNNING;
271			fc->itx_disable(fc, it->dmach);
272		}
273		/* free extbuf */
274		fwdev_freebuf(it);
275		it->flag &= ~(FWXFERQ_OPEN | FWXFERQ_MODEMASK | FWXFERQ_CHTAGMASK);
276		d->it = NULL;
277	}
278	free(d);
279	d = NULL;
280
281	return B_OK;
282}
283
284
285static int
286fw_read_async(struct fw_drv1 *d, off_t position, void *buf, size_t *num_bytes)
287{
288	int err = 0;
289	struct fw_xfer *xfer;
290	struct fw_bind *fwb;
291	struct fw_pkt *fp;
292	struct tcode_info *tinfo;
293	cpu_status s;
294
295	int len, pbytes = (int)*num_bytes;//pbytes:to be processed bytes
296	*num_bytes = 0;
297
298	FW_GLOCK(d->fc);
299	while ((xfer = STAILQ_FIRST(&d->rq)) == NULL && err == B_OK) {
300		//err = msleep(&d->rq, FW_GMTX(d->fc), FWPRI, "fwra", 0);
301		FW_GUNLOCK(d->fc);
302		err = acquire_sem_etc(d->rqSem, 1, B_CAN_INTERRUPT | B_TIMEOUT,
303			B_INFINITE_TIMEOUT);//B_INFINITE_TIMEOUT means no timeout?
304		FW_GLOCK(d->fc);
305	}
306
307//	if (err != 0) {
308	if (err != B_OK) {
309
310		FW_GUNLOCK(d->fc);
311		return (err);
312	}
313
314	s = splfw();
315	STAILQ_REMOVE_HEAD(&d->rq, link);
316	FW_GUNLOCK(xfer->fc);
317	splx(s);
318	fp = &xfer->recv.hdr;
319#if 0 /* for GASP ?? */
320	if (fc->irx_post != NULL)
321		fc->irx_post(fc, fp->mode.ld);
322#endif
323	tinfo = &xfer->fc->tcode[fp->mode.hdr.tcode];
324//	err = uiomove((void *)fp, tinfo->hdr_len, uio);
325	len = tinfo->hdr_len;
326	len = MIN(len, pbytes);
327	err = user_memcpy(buf, fp, len);
328	pbytes -= len;
329	*num_bytes += len;
330	buf = (void *)((caddr_t)buf + len);
331
332//	if (err)
333	if (err < B_OK) {
334		goto out;
335	}
336
337//	err = uiomove((void *)xfer->recv.payload, xfer->recv.pay_len, uio);
338	len = xfer->recv.pay_len;
339	len = MIN(len, pbytes);
340	err = user_memcpy(buf, (void *)xfer->recv.payload, len);
341	pbytes -= len;
342	*num_bytes += len;//get have been processed bytes num
343	buf = (void *)((caddr_t)buf + len);
344
345out:
346	/* recycle this xfer */
347	fwb = (struct fw_bind *)xfer->sc;
348	gFirewire->fw_xfer_unload(xfer);
349	xfer->recv.pay_len = B_PAGE_SIZE;
350	FW_GLOCK(xfer->fc);
351	STAILQ_INSERT_TAIL(&fwb->xferlist, xfer, link);
352	FW_GUNLOCK(xfer->fc);
353	return (err);
354}
355
356
357/*
358 * read request.
359 */
360static status_t
361fw_read (void *cookie, off_t position, void *buf, size_t *num_bytes)
362{
363	struct fw_drv1 *d;
364	struct fw_xferq *ir;
365	struct firewire_comm *fc;
366	int err = 0, slept = 0;
367	struct fw_pkt *fp;
368	cpu_status s;
369
370	int len, pbytes = (int)*num_bytes;
371	*num_bytes = 0;
372
373	d = (struct fw_drv1 *)cookie;
374	fc = d->fc;
375	ir = d->ir;
376
377	if (ir == NULL)
378		return (fw_read_async(d, position, buf, num_bytes));
379
380	if (ir->buf == NULL)
381		return (EIO);
382
383	FW_GLOCK(fc);
384readloop:
385	if (ir->stproc == NULL) {
386		/* iso bulkxfer */
387		ir->stproc = STAILQ_FIRST(&ir->stvalid);
388		if (ir->stproc != NULL) {
389			s = splfw();
390			STAILQ_REMOVE_HEAD(&ir->stvalid, link);
391			splx(s);
392			ir->queued = 0;
393		}
394	}
395	if (ir->stproc == NULL) {
396		/* no data avaliable */
397		if (slept == 0) {
398			slept = 1;
399			ir->flag |= FWXFERQ_WAKEUP;
400			//err = msleep(ir, FW_GMTX(fc), FWPRI, "fw_read", hz);
401			FW_GUNLOCK(fc);
402			err = acquire_sem_etc(ir->Sem, 1, B_CAN_INTERRUPT | B_TIMEOUT, 1000000);
403			FW_GLOCK(fc);
404
405			ir->flag &= ~FWXFERQ_WAKEUP;
406			if (err == B_OK)
407				goto readloop;
408		} else if (slept == 1)
409			err = EIO;
410		FW_GUNLOCK(fc);
411		return err;
412	} else if (ir->stproc != NULL) {
413		/* iso bulkxfer */
414		FW_GUNLOCK(fc);
415		fp = (struct fw_pkt *)fwdma_v_addr(ir->buf,
416				ir->stproc->poffset + ir->queued);
417		if (fc->irx_post != NULL)
418			fc->irx_post(fc, fp->mode.ld);
419		if (fp->mode.stream.len == 0) {
420			err = EIO;
421			return err;
422		}
423	//	err = uiomove((caddr_t)fp,
424	//		fp->mode.stream.len + sizeof(uint32_t), uio);
425		len = fp->mode.stream.len + sizeof(uint32_t);
426		len = MIN(len, pbytes);
427		err = user_memcpy(buf, (void *)fp, len);
428		pbytes -= len;
429		*num_bytes += len;
430		buf = (void *)((caddr_t)buf + len);
431
432		ir->queued ++;
433		if (ir->queued >= ir->bnpacket) {
434			s = splfw();
435			STAILQ_INSERT_TAIL(&ir->stfree, ir->stproc, link);
436			splx(s);
437			fc->irx_enable(fc, ir->dmach);
438			ir->stproc = NULL;
439		}
440		if (pbytes >= ir->psize) {
441			slept = -1;
442			FW_GLOCK(fc);
443			goto readloop;
444		}
445	}
446	return err;
447}
448
449
450static int
451fw_write_async(struct fw_drv1 *d, off_t position, const void *buf,
452	size_t *num_bytes)
453{
454	struct fw_xfer *xfer;
455	struct fw_pkt pkt;
456	struct tcode_info *tinfo;
457	int err;
458
459	int len, pbytes = (int)*num_bytes;
460	*num_bytes = 0;
461
462	bzero(&pkt, sizeof(struct fw_pkt));
463//	if ((err = uiomove((caddr_t)&pkt, sizeof(uint32_t), uio)))
464	len = sizeof(uint32_t);
465	len = MIN(len, pbytes);
466	err = user_memcpy(&pkt, buf, len);
467	pbytes -= len;
468	*num_bytes += len;
469	buf = (void *)((caddr_t)buf + len);
470	if (err < B_OK)
471		return (err);
472
473	tinfo = &d->fc->tcode[pkt.mode.hdr.tcode];
474//	if ((err = uiomove((caddr_t)&pkt + sizeof(uint32_t),
475//	    tinfo->hdr_len - sizeof(uint32_t), uio)))
476	len = tinfo->hdr_len - sizeof(uint32_t);
477	len = MIN(len, pbytes);
478	err = user_memcpy((void*)((caddr_t)&pkt + sizeof(uint32_t)),
479			buf, len);
480	pbytes -= len;
481	*num_bytes += len;
482	buf = (void *)((caddr_t)buf + len);
483
484	if (err < B_OK)
485		return (err);
486
487	if ((xfer = gFirewire->fw_xfer_alloc_buf(pbytes,
488	    B_PAGE_SIZE/*XXX*/)) == NULL)
489		return (ENOMEM);
490
491	bcopy(&pkt, &xfer->send.hdr, sizeof(struct fw_pkt));
492//	xfer->send.pay_len = uio->uio_resid;
493	xfer->send.pay_len = pbytes;
494
495/*	if (uio->uio_resid > 0) {
496		if ((err = uiomove((caddr_t)&xfer->send.payload[0],
497		    uio->uio_resid, uio)));// here the FreeBSD's stack author may be careless?
498			goto out;
499	}*/
500	if (pbytes > 0) {
501		len = pbytes;
502		err = user_memcpy((void*)&xfer->send.payload[0],
503				buf, len);
504		pbytes -= len;
505		*num_bytes += len;
506		buf = (void *)((caddr_t)buf + len);
507		if (err < B_OK)
508			goto out;
509	}
510
511	xfer->fc = d->fc;
512	xfer->sc = NULL;
513	xfer->hand = gFirewire->fw_xferwake;
514	xfer->send.spd = 2 /* XXX */;
515
516	if ((err = gFirewire->fw_asyreq(xfer->fc, -1, xfer)))
517		goto out;
518
519	if ((err = gFirewire->fw_xferwait(xfer)))
520		goto out;
521
522	if (xfer->resp != 0) {
523		err = xfer->resp;
524		goto out;
525	}
526
527	if (xfer->flag & FWXF_RCVD) {
528		FW_GLOCK(xfer->fc);
529		STAILQ_INSERT_TAIL(&d->rq, xfer, link);
530		FW_GUNLOCK(xfer->fc);
531		return B_OK;
532	}
533
534out:
535	gFirewire->fw_xfer_free(xfer);
536	return (err);
537}
538
539
540static status_t
541fw_write (void *cookie, off_t position, const void *buf, size_t *num_bytes)
542{
543	int err = 0;
544	int slept = 0;
545	struct fw_drv1 *d;
546	struct fw_pkt *fp;
547	struct firewire_comm *fc;
548	struct fw_xferq *it;
549	cpu_status s;
550
551	int len, pbytes = (int)*num_bytes;
552	*num_bytes = 0;
553
554	d = (struct fw_drv1 *)cookie;
555	fc = d->fc;
556	it = d->it;
557
558	if (it == NULL)
559		return (fw_write_async(d, position, buf, num_bytes));
560
561	if (it->buf == NULL)
562		return (EIO);
563
564	FW_GLOCK(fc);
565isoloop:
566	if (it->stproc == NULL) {
567		it->stproc = STAILQ_FIRST(&it->stfree);
568		if (it->stproc != NULL) {
569			s = splfw();
570			STAILQ_REMOVE_HEAD(&it->stfree, link);
571			splx(s);
572			it->queued = 0;
573		} else if (slept == 0) {
574			slept = 1;
575#if 0	/* XXX to avoid lock recursion */
576			err = fc->itx_enable(fc, it->dmach);
577			if (err)
578				goto out;
579#endif
580//			err = msleep(it, FW_GMTX(fc), FWPRI, "fw_write", hz);
581			FW_GUNLOCK(fc);
582			err = acquire_sem_etc(it->Sem, 1, B_CAN_INTERRUPT | B_TIMEOUT, 1000000);
583			FW_GLOCK(fc);
584
585//			if (err)
586			if (err < B_OK)
587				goto out;
588			goto isoloop;
589		} else {
590			err = EIO;
591			goto out;
592		}
593	}
594	FW_GUNLOCK(fc);
595	fp = (struct fw_pkt *)fwdma_v_addr(it->buf,
596			it->stproc->poffset + it->queued);
597//	err = uiomove((caddr_t)fp, sizeof(struct fw_isohdr), uio);
598	len = sizeof(struct fw_isohdr);
599	len = MIN(len, pbytes);
600	err = user_memcpy(fp, buf, len);
601	pbytes -= len;
602	*num_bytes += len;
603	buf = (void *)((caddr_t)buf + len);
604
605//	err = uiomove((caddr_t)fp->mode.stream.payload,
606//				fp->mode.stream.len, uio);
607	len = fp->mode.stream.len;
608	len = MIN(len, pbytes);
609	err = user_memcpy(fp->mode.stream.payload, buf, len);
610	pbytes -= len;
611	*num_bytes += len;
612	buf = (void *)((caddr_t)buf + len);
613
614	it->queued ++;
615	if (it->queued >= it->bnpacket) {
616		s = splfw();
617		STAILQ_INSERT_TAIL(&it->stvalid, it->stproc, link);
618		splx(s);
619		it->stproc = NULL;
620		err = fc->itx_enable(fc, it->dmach);
621	}
622//	if (uio->uio_resid >= sizeof(struct fw_isohdr)) {
623	if (pbytes >= sizeof(struct fw_isohdr)) {
624		slept = 0;
625		FW_GLOCK(fc);
626		goto isoloop;
627	}
628	return err;
629
630out:
631	FW_GUNLOCK(fc);
632	return err;
633}
634
635
636static void
637fw_hand(struct fw_xfer *xfer)
638{
639	struct fw_bind *fwb;
640	struct fw_drv1 *d;
641
642	fwb = (struct fw_bind *)xfer->sc;
643	d = (struct fw_drv1 *)fwb->sc;
644	FW_GLOCK(xfer->fc);
645	STAILQ_INSERT_TAIL(&d->rq, xfer, link);
646	FW_GUNLOCK(xfer->fc);
647//	wakeup(&d->rq);
648	release_sem_etc(d->rqSem, 1, B_DO_NOT_RESCHEDULE);
649}
650
651
652/*
653 * ioctl support.
654 */
655static status_t
656fw_ioctl (void *cookie, uint32 cmd, void *data, size_t length)
657{
658	struct firewire_comm *fc;
659	struct fw_drv1 *d;
660	int i, len, err = 0;
661	struct fw_device *fwdev;
662	struct fw_bind *fwb;
663	struct fw_xferq *ir, *it;
664	struct fw_xfer *xfer;
665	struct fw_pkt *fp;
666	struct fw_devinfo *devinfo;
667	void *ptr;
668
669	struct fw_devlstreq *fwdevlst = (struct fw_devlstreq *)data;
670	struct fw_asyreq *asyreq = (struct fw_asyreq *)data;
671	struct fw_isochreq *ichreq = (struct fw_isochreq *)data;
672	struct fw_isobufreq *ibufreq = (struct fw_isobufreq *)data;
673	struct fw_asybindreq *bindreq = (struct fw_asybindreq *)data;
674	struct fw_crom_buf *crom_buf = (struct fw_crom_buf *)data;
675
676	if (!data)
677		return(EINVAL);
678
679	d = (struct fw_drv1 *)cookie;
680	fc = d->fc;
681	ir = d->ir;
682	it = d->it;
683
684	switch (cmd) {
685	case FW_STSTREAM:
686		if (it == NULL) {
687			i = gFirewire->fw_open_isodma(fc, /* tx */1);
688			if (i < 0) {
689				err = EBUSY;
690				break;
691			}
692			it = fc->it[i];
693			err = fwdev_allocbuf(it, &d->bufreq.tx);
694			if (err) {
695				it->flag &= ~FWXFERQ_OPEN;
696				break;
697			}
698		}
699		it->flag &= ~0xff;
700		it->flag |= (0x3f & ichreq->ch);
701		it->flag |= ((0x3 & ichreq->tag) << 6);
702		d->it = it;
703		break;
704	case FW_GTSTREAM:
705		if (it != NULL) {
706			ichreq->ch = it->flag & 0x3f;
707			ichreq->tag = it->flag >> 2 & 0x3;
708		} else
709			err = EINVAL;
710		break;
711	case FW_SRSTREAM:
712		if (ir == NULL) {
713			i = gFirewire->fw_open_isodma(fc, /* tx */0);
714			if (i < 0) {
715				err = EBUSY;
716				break;
717			}
718			ir = fc->ir[i];
719			err = fwdev_allocbuf(ir, &d->bufreq.rx);
720			if (err) {
721				ir->flag &= ~FWXFERQ_OPEN;
722				break;
723			}
724		}
725		ir->flag &= ~0xff;
726		ir->flag |= (0x3f & ichreq->ch);
727		ir->flag |= ((0x3 & ichreq->tag) << 6);
728		d->ir = ir;
729		err = fc->irx_enable(fc, ir->dmach);
730		break;
731	case FW_GRSTREAM:
732		if (d->ir != NULL) {
733			ichreq->ch = ir->flag & 0x3f;
734			ichreq->tag = ir->flag >> 2 & 0x3;
735		} else
736			err = EINVAL;
737		break;
738	case FW_SSTBUF:
739		bcopy(ibufreq, &d->bufreq, sizeof(d->bufreq));
740		break;
741	case FW_GSTBUF:
742		bzero(&ibufreq->rx, sizeof(ibufreq->rx));
743		if (ir != NULL) {
744			ibufreq->rx.nchunk = ir->bnchunk;
745			ibufreq->rx.npacket = ir->bnpacket;
746			ibufreq->rx.psize = ir->psize;
747		}
748		bzero(&ibufreq->tx, sizeof(ibufreq->tx));
749		if (it != NULL) {
750			ibufreq->tx.nchunk = it->bnchunk;
751			ibufreq->tx.npacket = it->bnpacket;
752			ibufreq->tx.psize = it->psize;
753		}
754		break;
755	case FW_ASYREQ:
756	{
757		struct tcode_info *tinfo;
758		int pay_len = 0;
759
760		fp = &asyreq->pkt;
761		tinfo = &fc->tcode[fp->mode.hdr.tcode];
762
763		if ((tinfo->flag & FWTI_BLOCK_ASY) != 0)
764			pay_len = MAX(0, asyreq->req.len - tinfo->hdr_len);
765
766		xfer = gFirewire->fw_xfer_alloc_buf(pay_len, B_PAGE_SIZE/*XXX*/);
767		if (xfer == NULL)
768			return (ENOMEM);
769
770		switch (asyreq->req.type) {
771		case FWASREQNODE:
772			break;
773		case FWASREQEUI:
774			fwdev = gFirewire->fw_noderesolve_eui64(fc,
775						&asyreq->req.dst.eui);
776			if (fwdev == NULL) {
777				dprintf("FWASREQEUI cannot find node\n");
778				err = EINVAL;
779				goto out;
780			}
781			fp->mode.hdr.dst = FWLOCALBUS | fwdev->dst;
782			break;
783		case FWASRESTL:
784			/* XXX what's this? */
785			break;
786		case FWASREQSTREAM:
787			/* nothing to do */
788			break;
789		}
790
791		bcopy(fp, (void *)&xfer->send.hdr, tinfo->hdr_len);
792		if (pay_len > 0)
793			bcopy((char *)fp + tinfo->hdr_len,
794			    (void *)xfer->send.payload, pay_len);
795		xfer->send.spd = asyreq->req.sped;
796		xfer->hand = gFirewire->fw_xferwake;
797
798		if ((err = gFirewire->fw_asyreq(fc, -1, xfer)) != 0)
799			goto out;
800		if ((err = gFirewire->fw_xferwait(xfer)) != 0)
801			goto out;
802		if (xfer->resp != 0) {
803			err = EIO;
804			goto out;
805		}
806		if ((tinfo->flag & FWTI_TLABEL) == 0)
807			goto out;
808
809		/* copy response */
810		tinfo = &fc->tcode[xfer->recv.hdr.mode.hdr.tcode];
811		if (xfer->recv.hdr.mode.hdr.tcode == FWTCODE_RRESB ||
812		    xfer->recv.hdr.mode.hdr.tcode == FWTCODE_LRES) {
813			pay_len = xfer->recv.pay_len;
814			if (asyreq->req.len >= xfer->recv.pay_len + tinfo->hdr_len) {
815				asyreq->req.len = xfer->recv.pay_len +
816					tinfo->hdr_len;
817			} else {
818				err = EINVAL;
819				pay_len = 0;
820			}
821		} else {
822			pay_len = 0;
823		}
824		bcopy(&xfer->recv.hdr, fp, tinfo->hdr_len);
825		bcopy(xfer->recv.payload, (char *)fp + tinfo->hdr_len, pay_len);
826out:
827		gFirewire->fw_xfer_free_buf(xfer);
828		break;
829	}
830	case FW_IBUSRST:
831		fc->ibr(fc);
832		break;
833	case FW_CBINDADDR:
834		fwb = gFirewire->fw_bindlookup(fc,
835				bindreq->start.hi, bindreq->start.lo);
836		if (fwb == NULL) {
837			err = EINVAL;
838			break;
839		}
840		gFirewire->fw_bindremove(fc, fwb);
841		STAILQ_REMOVE(&d->binds, fwb, fw_bind, chlist);
842		gFirewire->fw_xferlist_remove(&fwb->xferlist);
843		free(fwb);
844		break;
845	case FW_SBINDADDR:
846		if (bindreq->len <= 0) {
847			err = EINVAL;
848			break;
849		}
850		if (bindreq->start.hi > 0xffff) {
851			err = EINVAL;
852			break;
853		}
854		fwb = (struct fw_bind *)malloc(sizeof (struct fw_bind));
855		if (fwb == NULL) {
856			err = ENOMEM;
857			break;
858		}
859		fwb->start = ((u_int64_t)bindreq->start.hi << 32) |
860		    bindreq->start.lo;
861		fwb->end = fwb->start + bindreq->len;
862		fwb->sc = (void *)d;
863		STAILQ_INIT(&fwb->xferlist);
864		err = gFirewire->fw_bindadd(fc, fwb);
865		if (err == 0) {
866			gFirewire->fw_xferlist_add(&fwb->xferlist,
867			    /* XXX */
868			    B_PAGE_SIZE, B_PAGE_SIZE, 5,
869			    fc, (void *)fwb, fw_hand);
870			STAILQ_INSERT_TAIL(&d->binds, fwb, chlist);
871		}
872		break;
873	case FW_GDEVLST:
874		i = len = 1;
875		/* myself */
876		devinfo = &fwdevlst->dev[0];
877		devinfo->dst = fc->nodeid;
878		devinfo->status = 0;	/* XXX */
879		devinfo->eui.hi = fc->eui.hi;
880		devinfo->eui.lo = fc->eui.lo;
881		STAILQ_FOREACH(fwdev, &fc->devices, link) {
882			if (len < FW_MAX_DEVLST) {
883				devinfo = &fwdevlst->dev[len++];
884				devinfo->dst = fwdev->dst;
885				devinfo->status =
886					(fwdev->status == FWDEVINVAL) ? 0 : 1;
887				devinfo->eui.hi = fwdev->eui.hi;
888				devinfo->eui.lo = fwdev->eui.lo;
889			}
890			i++;
891		}
892		fwdevlst->n = i;
893		fwdevlst->info_len = len;
894		break;
895	case FW_GTPMAP:
896		bcopy(fc->topology_map, data,
897				(fc->topology_map->crc_len + 1) * 4);
898		break;
899	case FW_GCROM:
900		STAILQ_FOREACH(fwdev, &fc->devices, link)
901			if (FW_EUI64_EQUAL(fwdev->eui, crom_buf->eui))
902				break;
903		if (fwdev == NULL) {
904			if (!FW_EUI64_EQUAL(fc->eui, crom_buf->eui)) {
905				err = FWNODE_INVAL;
906				break;
907			}
908			/* myself */
909			ptr = malloc(CROMSIZE);
910			len = CROMSIZE;
911			for (i = 0; i < CROMSIZE / 4; i++)
912				((uint32_t *)ptr)[i]
913					= B_BENDIAN_TO_HOST_INT32(fc->config_rom[i]);
914		} else {
915			/* found */
916			ptr = (void *)&fwdev->csrrom[0];
917			if (fwdev->rommax < CSRROMOFF)
918				len = 0;
919			else
920				len = fwdev->rommax - CSRROMOFF + 4;
921		}
922		if (crom_buf->len < len)
923			len = crom_buf->len;
924		else
925			crom_buf->len = len;
926//		err = copyout(ptr, crom_buf->ptr, len);//to be completed
927		err = user_memcpy(crom_buf->ptr, ptr, len);
928		if (fwdev == NULL)
929			/* myself */
930			free(ptr);
931		break;
932	default:
933		fc->ioctl (fc, cmd, data, length);
934		break;
935	}
936	return err;
937}
938
939
940status_t
941init_hardware()
942{
943	return B_OK;
944}
945
946
947const char **
948publish_devices(void)
949{
950	return (const char **)devices;
951}
952
953
954static device_hooks hooks = {
955	&fw_open,
956	&fw_close,
957	&fw_free,
958	&fw_ioctl,
959	&fw_read,
960	&fw_write,
961	NULL,
962	NULL,
963	NULL,
964	NULL
965};
966
967device_hooks *
968find_device(const char *name)
969{
970	return &hooks;
971}
972
973
974status_t
975init_driver()
976{
977	status_t err;
978	struct firewire_softc *sc = NULL;
979	uint32 i;
980
981#if DEBUG && !defined(__HAIKU__)
982	load_driver_symbols("fw_raw");
983#endif
984
985	if ((err = get_module(FIREWIRE_MODULE_NAME, (module_info **)&gFirewire)) != B_OK) {
986		dprintf("fw_raw: couldn't load "FIREWIRE_MODULE_NAME"\n");
987		return err;
988	}
989
990	devices_count = 0;
991	while (gFirewire->get_handle(devices_count, &sc) == B_OK) {
992		devices_count++;
993	}
994
995	if (devices_count <= 0) {
996		put_module(FIREWIRE_MODULE_NAME);
997		return ENODEV;
998	}
999
1000	devices = malloc(sizeof(char *) * (devices_count + 1));
1001	if (!devices) {
1002		put_module(FIREWIRE_MODULE_NAME);
1003		return ENOMEM;
1004	}
1005	for (i = 0; i < devices_count; i++) {
1006		devices[i] = strdup(fwname);
1007		snprintf(devices[i], FWNAMEMAX, fwname, i);
1008	}
1009	devices[devices_count] = NULL;
1010
1011	TRACE("fw_raw init_driver returns OK\n");
1012	return B_OK;
1013}
1014
1015
1016void
1017uninit_driver()
1018{
1019	int32 i = 0;
1020	for (i = 0; i < devices_count; i++) {
1021		free(devices[i]);
1022	}
1023	free(devices);
1024	devices = NULL;
1025
1026	put_module(FIREWIRE_MODULE_NAME);
1027}
1028