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1.1 nbrk 1: /* $OpenBSD: urio.c,v 1.32 2007/06/14 10:11:16 mbalmer Exp $ */
2: /* $NetBSD: urio.c,v 1.15 2002/10/23 09:14:02 jdolecek Exp $ */
3:
4: /*
5: * Copyright (c) 2000 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Lennart Augustsson (lennart@augustsson.net) at
10: * Carlstedt Research & Technology.
11: *
12: * Redistribution and use in source and binary forms, with or without
13: * modification, are permitted provided that the following conditions
14: * are met:
15: * 1. Redistributions of source code must retain the above copyright
16: * notice, this list of conditions and the following disclaimer.
17: * 2. Redistributions in binary form must reproduce the above copyright
18: * notice, this list of conditions and the following disclaimer in the
19: * documentation and/or other materials provided with the distribution.
20: * 3. All advertising materials mentioning features or use of this software
21: * must display the following acknowledgement:
22: * This product includes software developed by the NetBSD
23: * Foundation, Inc. and its contributors.
24: * 4. Neither the name of The NetBSD Foundation nor the names of its
25: * contributors may be used to endorse or promote products derived
26: * from this software without specific prior written permission.
27: *
28: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
29: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
30: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
31: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
32: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38: * POSSIBILITY OF SUCH DAMAGE.
39: */
40:
41: /*
42: * The inspiration and information for this driver comes from the
43: * FreeBSD driver written by Iwasa Kazmi.
44: */
45:
46: #include <sys/param.h>
47: #include <sys/systm.h>
48: #include <sys/kernel.h>
49: #include <sys/malloc.h>
50: #include <sys/device.h>
51: #include <sys/ioctl.h>
52: #include <sys/conf.h>
53: #include <sys/file.h>
54: #include <sys/selinfo.h>
55: #include <sys/proc.h>
56: #include <sys/vnode.h>
57: #include <sys/poll.h>
58:
59: #include <dev/usb/usb.h>
60: #include <dev/usb/usbdi.h>
61: #include <dev/usb/usbdi_util.h>
62:
63: #include <dev/usb/usbdevs.h>
64: #include <dev/usb/urio.h>
65:
66: #ifdef URIO_DEBUG
67: #define DPRINTF(x) do { if (uriodebug) printf x; } while (0)
68: #define DPRINTFN(n,x) do { if (uriodebug>(n)) printf x; } while (0)
69: int uriodebug = 0;
70: #else
71: #define DPRINTF(x)
72: #define DPRINTFN(n,x)
73: #endif
74:
75: #define URIO_CONFIG_NO 1
76: #define URIO_IFACE_IDX 0
77:
78: #define URIO_BSIZE 4096
79:
80: struct urio_softc {
81: struct device sc_dev;
82: usbd_device_handle sc_udev;
83: usbd_interface_handle sc_iface;
84:
85: int sc_in_addr;
86: usbd_pipe_handle sc_in_pipe;
87: int sc_out_addr;
88: usbd_pipe_handle sc_out_pipe;
89:
90: int sc_refcnt;
91: char sc_dying;
92: };
93:
94: #define URIOUNIT(n) (minor(n))
95:
96: #define URIO_RW_TIMEOUT 4000 /* ms */
97:
98: static const struct usb_devno urio_devs[] = {
99: { USB_VENDOR_DIAMOND, USB_PRODUCT_DIAMOND_RIO500USB},
100: { USB_VENDOR_DIAMOND2, USB_PRODUCT_DIAMOND2_RIO600USB},
101: { USB_VENDOR_DIAMOND2, USB_PRODUCT_DIAMOND2_RIO800USB},
102: { USB_VENDOR_DIAMOND2, USB_PRODUCT_DIAMOND2_PSAPLAY120},
103: };
104: #define urio_lookup(v, p) usb_lookup(urio_devs, v, p)
105:
106: int urio_match(struct device *, void *, void *);
107: void urio_attach(struct device *, struct device *, void *);
108: int urio_detach(struct device *, int);
109: int urio_activate(struct device *, enum devact);
110:
111: struct cfdriver urio_cd = {
112: NULL, "urio", DV_DULL
113: };
114:
115: const struct cfattach urio_ca = {
116: sizeof(struct urio_softc),
117: urio_match,
118: urio_attach,
119: urio_detach,
120: urio_activate,
121: };
122:
123: int
124: urio_match(struct device *parent, void *match, void *aux)
125: {
126: struct usb_attach_arg *uaa = aux;
127:
128: DPRINTFN(50,("urio_match\n"));
129:
130: if (uaa->iface != NULL)
131: return (UMATCH_NONE);
132:
133: return (urio_lookup(uaa->vendor, uaa->product) != NULL ?
134: UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
135: }
136:
137: void
138: urio_attach(struct device *parent, struct device *self, void *aux)
139: {
140: struct urio_softc *sc = (struct urio_softc *)self;
141: struct usb_attach_arg *uaa = aux;
142: usbd_device_handle dev = uaa->device;
143: usbd_interface_handle iface;
144: char *devinfop;
145: usbd_status err;
146: usb_endpoint_descriptor_t *ed;
147: u_int8_t epcount;
148: int i;
149:
150: DPRINTFN(10,("urio_attach: sc=%p\n", sc));
151:
152: devinfop = usbd_devinfo_alloc(dev, 0);
153: printf("\n%s: %s\n", sc->sc_dev.dv_xname, devinfop);
154: usbd_devinfo_free(devinfop);
155:
156: err = usbd_set_config_no(dev, URIO_CONFIG_NO, 1);
157: if (err) {
158: printf("%s: setting config no failed\n",
159: sc->sc_dev.dv_xname);
160: return;
161: }
162:
163: err = usbd_device2interface_handle(dev, URIO_IFACE_IDX, &iface);
164: if (err) {
165: printf("%s: getting interface handle failed\n",
166: sc->sc_dev.dv_xname);
167: return;
168: }
169:
170: sc->sc_udev = dev;
171: sc->sc_iface = iface;
172:
173: epcount = 0;
174: (void)usbd_endpoint_count(iface, &epcount);
175:
176: sc->sc_in_addr = -1;
177: sc->sc_out_addr = -1;
178: for (i = 0; i < epcount; i++) {
179: ed = usbd_interface2endpoint_descriptor(iface, i);
180: if (ed == NULL) {
181: printf("%s: couldn't get ep %d\n",
182: sc->sc_dev.dv_xname, i);
183: return;
184: }
185: if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
186: UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
187: sc->sc_in_addr = ed->bEndpointAddress;
188: } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
189: UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
190: sc->sc_out_addr = ed->bEndpointAddress;
191: }
192: }
193: if (sc->sc_in_addr == -1 || sc->sc_out_addr == -1) {
194: printf("%s: missing endpoint\n", sc->sc_dev.dv_xname);
195: return;
196: }
197:
198: DPRINTFN(10, ("urio_attach: %p\n", sc->sc_udev));
199:
200: usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
201: &sc->sc_dev);
202: }
203:
204: int
205: urio_detach(struct device *self, int flags)
206: {
207: struct urio_softc *sc = (struct urio_softc *)self;
208: int s;
209: int maj, mn;
210:
211: DPRINTF(("urio_detach: sc=%p flags=%d\n", sc, flags));
212:
213: sc->sc_dying = 1;
214: /* Abort all pipes. Causes processes waiting for transfer to wake. */
215: if (sc->sc_in_pipe != NULL) {
216: usbd_abort_pipe(sc->sc_in_pipe);
217: usbd_close_pipe(sc->sc_in_pipe);
218: sc->sc_in_pipe = NULL;
219: }
220: if (sc->sc_out_pipe != NULL) {
221: usbd_abort_pipe(sc->sc_out_pipe);
222: usbd_close_pipe(sc->sc_out_pipe);
223: sc->sc_out_pipe = NULL;
224: }
225:
226: s = splusb();
227: if (--sc->sc_refcnt >= 0) {
228: /* Wait for processes to go away. */
229: usb_detach_wait(&sc->sc_dev);
230: }
231: splx(s);
232:
233: /* locate the major number */
234: for (maj = 0; maj < nchrdev; maj++)
235: if (cdevsw[maj].d_open == urioopen)
236: break;
237:
238: /* Nuke the vnodes for any open instances (calls close). */
239: mn = self->dv_unit;
240: vdevgone(maj, mn, mn, VCHR);
241:
242: usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
243: &sc->sc_dev);
244:
245: return (0);
246: }
247:
248: int
249: urio_activate(struct device *self, enum devact act)
250: {
251: struct urio_softc *sc = (struct urio_softc *)self;
252:
253: switch (act) {
254: case DVACT_ACTIVATE:
255: break;
256:
257: case DVACT_DEACTIVATE:
258: sc->sc_dying = 1;
259: break;
260: }
261: return (0);
262: }
263:
264: int
265: urioopen(dev_t dev, int flag, int mode, struct proc *p)
266: {
267: struct urio_softc *sc;
268: usbd_status err;
269:
270: if (URIOUNIT(dev) >= urio_cd.cd_ndevs)
271: return (ENXIO);
272: sc = urio_cd.cd_devs[URIOUNIT(dev)];
273: if (sc == NULL)
274: return (ENXIO);
275:
276: DPRINTFN(5, ("urioopen: flag=%d, mode=%d, unit=%d\n",
277: flag, mode, URIOUNIT(dev)));
278:
279: if (sc->sc_dying)
280: return (EIO);
281:
282: if (sc->sc_in_pipe != NULL)
283: return (EBUSY);
284:
285: if ((flag & (FWRITE|FREAD)) != (FWRITE|FREAD))
286: return (EACCES);
287:
288: err = usbd_open_pipe(sc->sc_iface, sc->sc_in_addr, 0, &sc->sc_in_pipe);
289: if (err)
290: return (EIO);
291: err = usbd_open_pipe(sc->sc_iface, sc->sc_out_addr,0,&sc->sc_out_pipe);
292: if (err) {
293: usbd_close_pipe(sc->sc_in_pipe);
294: sc->sc_in_pipe = NULL;
295: return (EIO);
296: }
297:
298: return (0);
299: }
300:
301: int
302: urioclose(dev_t dev, int flag, int mode, struct proc *p)
303: {
304: struct urio_softc *sc;
305: sc = urio_cd.cd_devs[URIOUNIT(dev)];
306:
307: DPRINTFN(5, ("urioclose: flag=%d, mode=%d, unit=%d\n",
308: flag, mode, URIOUNIT(dev)));
309:
310: if (sc->sc_in_pipe != NULL) {
311: usbd_abort_pipe(sc->sc_in_pipe);
312: usbd_close_pipe(sc->sc_in_pipe);
313: sc->sc_in_pipe = NULL;
314: }
315: if (sc->sc_out_pipe != NULL) {
316: usbd_abort_pipe(sc->sc_out_pipe);
317: usbd_close_pipe(sc->sc_out_pipe);
318: sc->sc_out_pipe = NULL;
319: }
320:
321: return (0);
322: }
323:
324: int
325: urioread(dev_t dev, struct uio *uio, int flag)
326: {
327: struct urio_softc *sc;
328: usbd_xfer_handle xfer;
329: usbd_status err;
330: void *bufp;
331: u_int32_t n, tn;
332: int error = 0;
333:
334: sc = urio_cd.cd_devs[URIOUNIT(dev)];
335:
336: DPRINTFN(5, ("urioread: %d\n", URIOUNIT(dev)));
337:
338: if (sc->sc_dying)
339: return (EIO);
340:
341: xfer = usbd_alloc_xfer(sc->sc_udev);
342: if (xfer == NULL)
343: return (ENOMEM);
344: bufp = usbd_alloc_buffer(xfer, URIO_BSIZE);
345: if (bufp == NULL) {
346: usbd_free_xfer(xfer);
347: return (ENOMEM);
348: }
349:
350: sc->sc_refcnt++;
351:
352: while ((n = min(URIO_BSIZE, uio->uio_resid)) != 0) {
353: DPRINTFN(1, ("urioread: start transfer %d bytes\n", n));
354: tn = n;
355: err = usbd_bulk_transfer(xfer, sc->sc_in_pipe, USBD_NO_COPY,
356: URIO_RW_TIMEOUT, bufp, &tn, "uriors");
357: if (err) {
358: if (err == USBD_INTERRUPTED)
359: error = EINTR;
360: else if (err == USBD_TIMEOUT)
361: error = ETIMEDOUT;
362: else
363: error = EIO;
364: break;
365: }
366:
367: DPRINTFN(1, ("urioread: got %d bytes\n", tn));
368:
369: error = uiomove(bufp, tn, uio);
370: if (error || tn < n)
371: break;
372: }
373: usbd_free_xfer(xfer);
374:
375: if (--sc->sc_refcnt < 0)
376: usb_detach_wakeup(&sc->sc_dev);
377:
378: return (error);
379: }
380:
381: int
382: uriowrite(dev_t dev, struct uio *uio, int flag)
383: {
384: struct urio_softc *sc;
385: usbd_xfer_handle xfer;
386: usbd_status err;
387: void *bufp;
388: u_int32_t n;
389: int error = 0;
390:
391: sc = urio_cd.cd_devs[URIOUNIT(dev)];
392:
393: DPRINTFN(5, ("uriowrite: unit=%d, len=%ld\n", URIOUNIT(dev),
394: (long)uio->uio_resid));
395:
396: if (sc->sc_dying)
397: return (EIO);
398:
399: xfer = usbd_alloc_xfer(sc->sc_udev);
400: if (xfer == NULL)
401: return (ENOMEM);
402: bufp = usbd_alloc_buffer(xfer, URIO_BSIZE);
403: if (bufp == NULL) {
404: usbd_free_xfer(xfer);
405: return (ENOMEM);
406: }
407:
408: sc->sc_refcnt++;
409:
410: while ((n = min(URIO_BSIZE, uio->uio_resid)) != 0) {
411: error = uiomove(bufp, n, uio);
412: if (error)
413: break;
414:
415: DPRINTFN(1, ("uriowrite: transfer %d bytes\n", n));
416:
417: err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY,
418: URIO_RW_TIMEOUT, bufp, &n, "uriowr");
419: DPRINTFN(2, ("uriowrite: err=%d\n", err));
420: if (err) {
421: if (err == USBD_INTERRUPTED)
422: error = EINTR;
423: else if (err == USBD_TIMEOUT)
424: error = ETIMEDOUT;
425: else
426: error = EIO;
427: break;
428: }
429: }
430:
431: usbd_free_xfer(xfer);
432:
433: if (--sc->sc_refcnt < 0)
434: usb_detach_wakeup(&sc->sc_dev);
435:
436: DPRINTFN(5, ("uriowrite: done unit=%d, error=%d\n", URIOUNIT(dev),
437: error));
438:
439: return (error);
440: }
441:
442:
443: int
444: urioioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
445: {
446: struct urio_softc * sc;
447: int unit = URIOUNIT(dev);
448: struct urio_command *rcmd;
449: int requesttype, len;
450: struct iovec iov;
451: struct uio uio;
452: usb_device_request_t req;
453: usbd_status err;
454: int req_flags = 0;
455: u_int32_t req_actlen = 0;
456: void *ptr = NULL;
457: int error = 0;
458:
459: sc = urio_cd.cd_devs[unit];
460:
461: if (sc->sc_dying)
462: return (EIO);
463:
464: rcmd = (struct urio_command *)addr;
465:
466: switch (cmd) {
467: case URIO_RECV_COMMAND:
468: requesttype = rcmd->requesttype | UT_READ_VENDOR_DEVICE;
469: break;
470:
471: case URIO_SEND_COMMAND:
472: requesttype = rcmd->requesttype | UT_WRITE_VENDOR_DEVICE;
473: break;
474:
475: default:
476: return (EINVAL);
477: break;
478: }
479:
480: if (!(flag & FWRITE))
481: return (EPERM);
482: len = rcmd->length;
483:
484: DPRINTFN(1,("urio_ioctl: cmd=0x%08lx reqtype=0x%0x req=0x%0x "
485: "value=0x%0x index=0x%0x len=0x%0x\n",
486: cmd, requesttype, rcmd->request, rcmd->value,
487: rcmd->index, len));
488:
489: /* Send rio control message */
490: req.bmRequestType = requesttype;
491: req.bRequest = rcmd->request;
492: USETW(req.wValue, rcmd->value);
493: USETW(req.wIndex, rcmd->index);
494: USETW(req.wLength, len);
495:
496: if (len < 0 || len > 32767)
497: return (EINVAL);
498: if (len != 0) {
499: iov.iov_base = (caddr_t)rcmd->buffer;
500: iov.iov_len = len;
501: uio.uio_iov = &iov;
502: uio.uio_iovcnt = 1;
503: uio.uio_resid = len;
504: uio.uio_offset = 0;
505: uio.uio_segflg = UIO_USERSPACE;
506: uio.uio_rw = req.bmRequestType & UT_READ ?
507: UIO_READ : UIO_WRITE;
508: uio.uio_procp = p;
509: ptr = malloc(len, M_TEMP, M_WAITOK);
510: if (uio.uio_rw == UIO_WRITE) {
511: error = uiomove(ptr, len, &uio);
512: if (error)
513: goto ret;
514: }
515: }
516:
517: sc->sc_refcnt++;
518:
519: err = usbd_do_request_flags(sc->sc_udev, &req, ptr, req_flags,
520: &req_actlen, USBD_DEFAULT_TIMEOUT);
521:
522: if (--sc->sc_refcnt < 0)
523: usb_detach_wakeup(&sc->sc_dev);
524:
525: if (err) {
526: error = EIO;
527: } else {
528: if (len != 0 && uio.uio_rw == UIO_READ)
529: error = uiomove(ptr, len, &uio);
530: }
531:
532: ret:
533: if (ptr != NULL)
534: free(ptr, M_TEMP);
535: return (error);
536: }
537:
538: int
539: uriopoll(dev_t dev, int events, struct proc *p)
540: {
541: return (0);
542: }