2 * Copyright (c) 2002-2003
3 * Hidetoshi Shimokawa. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
16 * This product includes software developed by Hidetoshi Shimokawa.
18 * 4. Neither the name of the author nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/types.h>
45 #include <sys/kernel.h>
46 #include <sys/malloc.h>
48 #include <sys/sysctl.h>
49 #if defined(__DragonFly__) || __FreeBSD_version < 500000
56 #include <machine/bus.h>
58 #include <sys/signal.h>
60 #include <sys/ioccom.h>
61 #include <sys/fcntl.h>
65 #include "firewirereg.h"
68 #include <dev/firewire/firewire.h>
69 #include <dev/firewire/firewirereg.h>
70 #include <dev/firewire/fwmem.h>
73 static int fwmem_speed=2, fwmem_debug=0;
74 static struct fw_eui64 fwmem_eui64;
75 SYSCTL_DECL(_hw_firewire);
76 SYSCTL_NODE(_hw_firewire, OID_AUTO, fwmem, CTLFLAG_RD, 0,
77 "FireWire Memory Access");
78 SYSCTL_UINT(_hw_firewire_fwmem, OID_AUTO, eui64_hi, CTLFLAG_RW,
79 &fwmem_eui64.hi, 0, "Fwmem target EUI64 high");
80 SYSCTL_UINT(_hw_firewire_fwmem, OID_AUTO, eui64_lo, CTLFLAG_RW,
81 &fwmem_eui64.lo, 0, "Fwmem target EUI64 low");
82 SYSCTL_INT(_hw_firewire_fwmem, OID_AUTO, speed, CTLFLAG_RW, &fwmem_speed, 0,
84 SYSCTL_INT(_debug, OID_AUTO, fwmem_debug, CTLFLAG_RW, &fwmem_debug, 0,
85 "Fwmem driver debug flag");
87 MALLOC_DEFINE(M_FWMEM, "fwmem", "fwmem/FireWire");
89 #define MAXLEN (512 << fwmem_speed)
93 struct firewire_softc *sc;
97 static struct fw_xfer *
99 struct fw_device *fwdev,
106 struct fw_xfer *xfer;
108 xfer = fw_xfer_alloc(M_FWMEM);
112 xfer->fc = fwdev->fc;
113 xfer->send.hdr.mode.hdr.dst = FWLOCALBUS | fwdev->dst;
115 xfer->send.spd = fwdev->speed;
117 xfer->send.spd = min(spd, fwdev->speed);
120 xfer->send.pay_len = slen;
121 xfer->recv.pay_len = rlen;
128 struct fw_device *fwdev,
134 void (*hand)(struct fw_xfer *))
136 struct fw_xfer *xfer;
139 xfer = fwmem_xfer_req(fwdev, (void *)sc, spd, 0, 4, hand);
144 fp = &xfer->send.hdr;
145 fp->mode.rreqq.tcode = FWTCODE_RREQQ;
146 fp->mode.rreqq.dest_hi = dst_hi;
147 fp->mode.rreqq.dest_lo = dst_lo;
149 xfer->send.payload = NULL;
150 xfer->recv.payload = (uint32_t *)data;
153 printf("fwmem_read_quad: %d %04x:%08x\n", fwdev->dst,
156 if (fw_asyreq(xfer->fc, -1, xfer) == 0)
165 struct fw_device *fwdev,
171 void (*hand)(struct fw_xfer *))
173 struct fw_xfer *xfer;
176 xfer = fwmem_xfer_req(fwdev, sc, spd, 0, 0, hand);
180 fp = &xfer->send.hdr;
181 fp->mode.wreqq.tcode = FWTCODE_WREQQ;
182 fp->mode.wreqq.dest_hi = dst_hi;
183 fp->mode.wreqq.dest_lo = dst_lo;
184 fp->mode.wreqq.data = *(uint32_t *)data;
186 xfer->send.payload = xfer->recv.payload = NULL;
189 printf("fwmem_write_quad: %d %04x:%08x %08x\n", fwdev->dst,
190 dst_hi, dst_lo, *(uint32_t *)data);
192 if (fw_asyreq(xfer->fc, -1, xfer) == 0)
201 struct fw_device *fwdev,
208 void (*hand)(struct fw_xfer *))
210 struct fw_xfer *xfer;
213 xfer = fwmem_xfer_req(fwdev, sc, spd, 0, roundup2(len, 4), hand);
217 fp = &xfer->send.hdr;
218 fp->mode.rreqb.tcode = FWTCODE_RREQB;
219 fp->mode.rreqb.dest_hi = dst_hi;
220 fp->mode.rreqb.dest_lo = dst_lo;
221 fp->mode.rreqb.len = len;
222 fp->mode.rreqb.extcode = 0;
224 xfer->send.payload = NULL;
225 xfer->recv.payload = data;
228 printf("fwmem_read_block: %d %04x:%08x %d\n", fwdev->dst,
229 dst_hi, dst_lo, len);
230 if (fw_asyreq(xfer->fc, -1, xfer) == 0)
239 struct fw_device *fwdev,
246 void (*hand)(struct fw_xfer *))
248 struct fw_xfer *xfer;
251 xfer = fwmem_xfer_req(fwdev, sc, spd, len, 0, hand);
255 fp = &xfer->send.hdr;
256 fp->mode.wreqb.tcode = FWTCODE_WREQB;
257 fp->mode.wreqb.dest_hi = dst_hi;
258 fp->mode.wreqb.dest_lo = dst_lo;
259 fp->mode.wreqb.len = len;
260 fp->mode.wreqb.extcode = 0;
262 xfer->send.payload = data;
263 xfer->recv.payload = NULL;
266 printf("fwmem_write_block: %d %04x:%08x %d\n", fwdev->dst,
267 dst_hi, dst_lo, len);
268 if (fw_asyreq(xfer->fc, -1, xfer) == 0)
277 fwmem_open (struct cdev *dev, int flags, int fmt, fw_proc *td)
279 struct fwmem_softc *fms;
280 struct firewire_softc *sc;
281 int unit = DEV2UNIT(dev);
283 sc = devclass_get_softc(firewire_devclass, unit);
288 if (dev->si_drv1 != NULL) {
289 if ((flags & FWRITE) != 0) {
294 fms = (struct fwmem_softc *)dev->si_drv1;
297 dev->si_drv1 = (void *)-1;
299 dev->si_drv1 = malloc(sizeof(struct fwmem_softc),
301 if (dev->si_drv1 == NULL)
303 dev->si_iosize_max = DFLTPHYS;
304 fms = (struct fwmem_softc *)dev->si_drv1;
305 bcopy(&fwmem_eui64, &fms->eui, sizeof(struct fw_eui64));
310 printf("%s: refcount=%d\n", __func__, fms->refcount);
316 fwmem_close (struct cdev *dev, int flags, int fmt, fw_proc *td)
318 struct fwmem_softc *fms;
320 fms = (struct fwmem_softc *)dev->si_drv1;
322 FW_GLOCK(fms->sc->fc);
324 FW_GUNLOCK(fms->sc->fc);
326 printf("%s: refcount=%d\n", __func__, fms->refcount);
327 if (fms->refcount < 1) {
328 free(dev->si_drv1, M_FWMEM);
337 fwmem_biodone(struct fw_xfer *xfer)
341 bp = (struct bio *)xfer->sc;
342 bp->bio_error = xfer->resp;
344 if (bp->bio_error != 0) {
346 printf("%s: err=%d\n", __func__, bp->bio_error);
347 bp->bio_flags |= BIO_ERROR;
348 bp->bio_resid = bp->bio_bcount;
356 fwmem_strategy(struct bio *bp)
358 struct fwmem_softc *fms;
359 struct fw_device *fwdev;
360 struct fw_xfer *xfer;
365 /* XXX check request length */
368 fms = (struct fwmem_softc *)dev->si_drv1;
369 fwdev = fw_noderesolve_eui64(fms->sc->fc, &fms->eui);
372 printf("fwmem: no such device ID:%08x%08x\n",
373 fms->eui.hi, fms->eui.lo);
378 iolen = MIN(bp->bio_bcount, MAXLEN);
379 if ((bp->bio_cmd & BIO_READ) == BIO_READ) {
380 if (iolen == 4 && (bp->bio_offset & 3) == 0)
381 xfer = fwmem_read_quad(fwdev,
382 (void *) bp, fwmem_speed,
383 bp->bio_offset >> 32, bp->bio_offset & 0xffffffff,
384 bp->bio_data, fwmem_biodone);
386 xfer = fwmem_read_block(fwdev,
387 (void *) bp, fwmem_speed,
388 bp->bio_offset >> 32, bp->bio_offset & 0xffffffff,
389 iolen, bp->bio_data, fwmem_biodone);
391 if (iolen == 4 && (bp->bio_offset & 3) == 0)
392 xfer = fwmem_write_quad(fwdev,
393 (void *)bp, fwmem_speed,
394 bp->bio_offset >> 32, bp->bio_offset & 0xffffffff,
395 bp->bio_data, fwmem_biodone);
397 xfer = fwmem_write_block(fwdev,
398 (void *)bp, fwmem_speed,
399 bp->bio_offset >> 32, bp->bio_offset & 0xffffffff,
400 iolen, bp->bio_data, fwmem_biodone);
407 bp->bio_resid = bp->bio_bcount - iolen;
412 printf("%s: err=%d\n", __func__, err);
414 bp->bio_flags |= BIO_ERROR;
415 bp->bio_resid = bp->bio_bcount;
421 fwmem_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, fw_proc *td)
423 struct fwmem_softc *fms;
426 fms = (struct fwmem_softc *)dev->si_drv1;
429 bcopy(data, &fms->eui, sizeof(struct fw_eui64));
432 bcopy(&fms->eui, data, sizeof(struct fw_eui64));
440 fwmem_poll (struct cdev *dev, int events, fw_proc *td)
445 #if defined(__DragonFly__) || __FreeBSD_version < 500102
446 fwmem_mmap (struct cdev *dev, vm_offset_t offset, int nproto)
448 fwmem_mmap (struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int nproto)