1/*
2 * Copyright (c) 2002-2003
3 * Hidetoshi Shimokawa. 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 * 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:
15 *
16 * This product includes software developed by Hidetoshi Shimokawa.
17 *
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.
21 *
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
32 * SUCH DAMAGE.
33 *
34 */
35
|
| 36#ifdef __FreeBSD__ |
37#include <sys/cdefs.h>
|
37__FBSDID("$FreeBSD: head/sys/dev/firewire/fwmem.c 124145 2004-01-05 14:21:18Z simokawa $");
|
38__FBSDID("$FreeBSD: head/sys/dev/firewire/fwmem.c 127468 2004-03-26 23:17:10Z simokawa $");
39#endif |
40
41#include <sys/param.h>
42#include <sys/systm.h>
43#include <sys/types.h>
44
45#include <sys/kernel.h>
46#include <sys/malloc.h>
47#include <sys/conf.h>
48#include <sys/sysctl.h>
|
47#if __FreeBSD_version < 500000
|
| 49#if defined(__DragonFly__) || __FreeBSD_version < 500000 |
50#include <sys/buf.h>
51#else
52#include <sys/bio.h>
53#endif
54
55#include <sys/bus.h>
56#include <machine/bus.h>
57
58#include <sys/signal.h>
59#include <sys/mman.h>
60#include <sys/ioccom.h>
61#include <sys/fcntl.h>
62
|
63#ifdef __DragonFly__
64#include "firewire.h"
65#include "firewirereg.h"
66#include "fwmem.h"
67#else |
68#include <dev/firewire/firewire.h>
69#include <dev/firewire/firewirereg.h>
70#include <dev/firewire/fwmem.h>
|
| 71#endif |
72
73static int fwmem_speed=2, fwmem_debug=0;
74static struct fw_eui64 fwmem_eui64;
75SYSCTL_DECL(_hw_firewire);
76SYSCTL_NODE(_hw_firewire, OID_AUTO, fwmem, CTLFLAG_RD, 0,
77 "FireWire Memory Access");
78SYSCTL_UINT(_hw_firewire_fwmem, OID_AUTO, eui64_hi, CTLFLAG_RW,
79 &fwmem_eui64.hi, 0, "Fwmem target EUI64 high");
80SYSCTL_UINT(_hw_firewire_fwmem, OID_AUTO, eui64_lo, CTLFLAG_RW,
81 &fwmem_eui64.lo, 0, "Fwmem target EUI64 low");
82SYSCTL_INT(_hw_firewire_fwmem, OID_AUTO, speed, CTLFLAG_RW, &fwmem_speed, 0,
83 "Fwmem link speed");
84SYSCTL_INT(_debug, OID_AUTO, fwmem_debug, CTLFLAG_RW, &fwmem_debug, 0,
85 "Fwmem driver debug flag");
86
87MALLOC_DEFINE(M_FWMEM, "fwmem", "fwmem/FireWire");
88
89#define MAXLEN (512 << fwmem_speed)
90
91struct fwmem_softc {
92 struct fw_eui64 eui;
93 int refcount;
94};
95
96static struct fw_xfer *
97fwmem_xfer_req(
98 struct fw_device *fwdev,
99 caddr_t sc,
100 int spd,
101 int slen,
102 int rlen,
103 void *hand)
104{
105 struct fw_xfer *xfer;
106
107 xfer = fw_xfer_alloc(M_FWMEM);
108 if (xfer == NULL)
109 return NULL;
110
111 xfer->fc = fwdev->fc;
112 xfer->send.hdr.mode.hdr.dst = FWLOCALBUS | fwdev->dst;
113 if (spd < 0)
114 xfer->send.spd = fwdev->speed;
115 else
116 xfer->send.spd = min(spd, fwdev->speed);
117 xfer->act.hand = hand;
118 xfer->retry_req = fw_asybusy;
119 xfer->sc = sc;
120 xfer->send.pay_len = slen;
121 xfer->recv.pay_len = rlen;
122
123 return xfer;
124}
125
126struct fw_xfer *
127fwmem_read_quad(
128 struct fw_device *fwdev,
129 caddr_t sc,
130 u_int8_t spd,
131 u_int16_t dst_hi,
132 u_int32_t dst_lo,
133 void *data,
134 void (*hand)(struct fw_xfer *))
135{
136 struct fw_xfer *xfer;
137 struct fw_pkt *fp;
138
139 xfer = fwmem_xfer_req(fwdev, (void *)sc, spd, 0, 4, hand);
140 if (xfer == NULL) {
141 return NULL;
142 }
143
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;
148
149 xfer->send.payload = NULL;
150 xfer->recv.payload = (u_int32_t *)data;
151
152 if (fwmem_debug)
153 printf("fwmem_read_quad: %d %04x:%08x\n", fwdev->dst,
154 dst_hi, dst_lo);
155
156 if (fw_asyreq(xfer->fc, -1, xfer) == 0)
157 return xfer;
158
159 fw_xfer_free(xfer);
160 return NULL;
161}
162
163struct fw_xfer *
164fwmem_write_quad(
165 struct fw_device *fwdev,
166 caddr_t sc,
167 u_int8_t spd,
168 u_int16_t dst_hi,
169 u_int32_t dst_lo,
170 void *data,
171 void (*hand)(struct fw_xfer *))
172{
173 struct fw_xfer *xfer;
174 struct fw_pkt *fp;
175
176 xfer = fwmem_xfer_req(fwdev, sc, spd, 0, 0, hand);
177 if (xfer == NULL)
178 return NULL;
179
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 = *(u_int32_t *)data;
185
186 xfer->send.payload = xfer->recv.payload = NULL;
187
188 if (fwmem_debug)
189 printf("fwmem_write_quad: %d %04x:%08x %08x\n", fwdev->dst,
190 dst_hi, dst_lo, *(u_int32_t *)data);
191
192 if (fw_asyreq(xfer->fc, -1, xfer) == 0)
193 return xfer;
194
195 fw_xfer_free(xfer);
196 return NULL;
197}
198
199struct fw_xfer *
200fwmem_read_block(
201 struct fw_device *fwdev,
202 caddr_t sc,
203 u_int8_t spd,
204 u_int16_t dst_hi,
205 u_int32_t dst_lo,
206 int len,
207 void *data,
208 void (*hand)(struct fw_xfer *))
209{
210 struct fw_xfer *xfer;
211 struct fw_pkt *fp;
212
213 xfer = fwmem_xfer_req(fwdev, sc, spd, 0, roundup2(len, 4), hand);
214 if (xfer == NULL)
215 return NULL;
216
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;
223
224 xfer->send.payload = NULL;
225 xfer->recv.payload = data;
226
227 if (fwmem_debug)
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)
231 return xfer;
232
233 fw_xfer_free(xfer);
234 return NULL;
235}
236
237struct fw_xfer *
238fwmem_write_block(
239 struct fw_device *fwdev,
240 caddr_t sc,
241 u_int8_t spd,
242 u_int16_t dst_hi,
243 u_int32_t dst_lo,
244 int len,
245 void *data,
246 void (*hand)(struct fw_xfer *))
247{
248 struct fw_xfer *xfer;
249 struct fw_pkt *fp;
250
251 xfer = fwmem_xfer_req(fwdev, sc, spd, len, 0, hand);
252 if (xfer == NULL)
253 return NULL;
254
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;
261
262 xfer->send.payload = data;
263 xfer->recv.payload = NULL;
264
265 if (fwmem_debug)
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)
269 return xfer;
270
271 fw_xfer_free(xfer);
272 return NULL;
273}
274
275
276int
277fwmem_open (dev_t dev, int flags, int fmt, fw_proc *td)
278{
279 struct fwmem_softc *fms;
280
281 if (dev->si_drv1 != NULL) {
282 if ((flags & FWRITE) != 0)
283 return (EBUSY);
284 fms = (struct fwmem_softc *)dev->si_drv1;
285 fms->refcount ++;
286 } else {
287 fms = (struct fwmem_softc *)malloc(sizeof(struct fwmem_softc),
288 M_FWMEM, M_WAITOK);
289 if (fms == NULL)
290 return ENOMEM;
291 bcopy(&fwmem_eui64, &fms->eui, sizeof(struct fw_eui64));
292 dev->si_drv1 = (void *)fms;
293 dev->si_iosize_max = DFLTPHYS;
294 fms->refcount = 1;
295 }
296 if (fwmem_debug)
|
289 printf("%s: refcount=%d\n", __FUNCTION__, fms->refcount);
|
| 297 printf("%s: refcount=%d\n", __func__, fms->refcount); |
298
299 return (0);
300}
301
302int
303fwmem_close (dev_t dev, int flags, int fmt, fw_proc *td)
304{
305 struct fwmem_softc *fms;
306
307 fms = (struct fwmem_softc *)dev->si_drv1;
308 fms->refcount --;
309 if (fwmem_debug)
|
302 printf("%s: refcount=%d\n", __FUNCTION__, fms->refcount);
|
| 310 printf("%s: refcount=%d\n", __func__, fms->refcount); |
311 if (fms->refcount < 1) {
312 free(dev->si_drv1, M_FW);
313 dev->si_drv1 = NULL;
314 }
315
316 return (0);
317}
318
319
320static void
321fwmem_biodone(struct fw_xfer *xfer)
322{
323 struct bio *bp;
324
325 bp = (struct bio *)xfer->sc;
326 bp->bio_error = xfer->resp;
327
328 if (bp->bio_error != 0) {
329 if (fwmem_debug)
|
322 printf("%s: err=%d\n", __FUNCTION__, bp->bio_error);
|
| 330 printf("%s: err=%d\n", __func__, bp->bio_error); |
331 bp->bio_flags |= BIO_ERROR;
332 bp->bio_resid = bp->bio_bcount;
333 }
334
335 fw_xfer_free(xfer);
336 biodone(bp);
337}
338
339void
340fwmem_strategy(struct bio *bp)
341{
342 struct firewire_softc *sc;
343 struct fwmem_softc *fms;
344 struct fw_device *fwdev;
345 struct fw_xfer *xfer;
346 dev_t dev;
347 int unit, err=0, s, iolen;
348
349 dev = bp->bio_dev;
350 /* XXX check request length */
351
352 unit = DEV2UNIT(dev);
353 sc = devclass_get_softc(firewire_devclass, unit);
354
355 s = splfw();
356 fms = (struct fwmem_softc *)dev->si_drv1;
357 fwdev = fw_noderesolve_eui64(sc->fc, &fms->eui);
358 if (fwdev == NULL) {
359 if (fwmem_debug)
360 printf("fwmem: no such device ID:%08x%08x\n",
361 fms->eui.hi, fms->eui.lo);
362 err = EINVAL;
363 goto error;
364 }
365
366 iolen = MIN(bp->bio_bcount, MAXLEN);
367 if ((bp->bio_cmd & BIO_READ) == BIO_READ) {
368 if (iolen == 4 && (bp->bio_offset & 3) == 0)
369 xfer = fwmem_read_quad(fwdev,
370 (void *) bp, fwmem_speed,
371 bp->bio_offset >> 32, bp->bio_offset & 0xffffffff,
372 bp->bio_data, fwmem_biodone);
373 else
374 xfer = fwmem_read_block(fwdev,
375 (void *) bp, fwmem_speed,
376 bp->bio_offset >> 32, bp->bio_offset & 0xffffffff,
377 iolen, bp->bio_data, fwmem_biodone);
378 } else {
379 if (iolen == 4 && (bp->bio_offset & 3) == 0)
380 xfer = fwmem_write_quad(fwdev,
381 (void *)bp, fwmem_speed,
382 bp->bio_offset >> 32, bp->bio_offset & 0xffffffff,
383 bp->bio_data, fwmem_biodone);
384 else
385 xfer = fwmem_write_block(fwdev,
386 (void *)bp, fwmem_speed,
387 bp->bio_offset >> 32, bp->bio_offset & 0xffffffff,
388 iolen, bp->bio_data, fwmem_biodone);
389 }
390 if (xfer == NULL) {
391 err = EIO;
392 goto error;
393 }
394 /* XXX */
395 bp->bio_resid = bp->bio_bcount - iolen;
396error:
397 splx(s);
398 if (err != 0) {
399 if (fwmem_debug)
|
392 printf("%s: err=%d\n", __FUNCTION__, err);
|
| 400 printf("%s: err=%d\n", __func__, err); |
401 bp->bio_error = err;
402 bp->bio_flags |= BIO_ERROR;
403 bp->bio_resid = bp->bio_bcount;
404 biodone(bp);
405 }
406}
407
408int
409fwmem_ioctl (dev_t dev, u_long cmd, caddr_t data, int flag, fw_proc *td)
410{
411 struct fwmem_softc *fms;
412 int err = 0;
413
414 fms = (struct fwmem_softc *)dev->si_drv1;
415 switch (cmd) {
416 case FW_SDEUI64:
417 bcopy(data, &fms->eui, sizeof(struct fw_eui64));
418 break;
419 case FW_GDEUI64:
420 bcopy(&fms->eui, data, sizeof(struct fw_eui64));
421 break;
422 default:
423 err = EINVAL;
424 }
425 return(err);
426}
427int
428fwmem_poll (dev_t dev, int events, fw_proc *td)
429{
430 return EINVAL;
431}
432int
|
425#if __FreeBSD_version < 500102
|
| 433#if defined(__DragonFly__) || __FreeBSD_version < 500102 |
434fwmem_mmap (dev_t dev, vm_offset_t offset, int nproto)
435#else
436fwmem_mmap (dev_t dev, vm_offset_t offset, vm_paddr_t *paddr, int nproto)
437#endif
438{
439 return EINVAL;
440}
|