]> CyberLeo.Net >> Repos - FreeBSD/releng/8.2.git/blob - sys/dev/usb/storage/urio.c
Copy stable/8 to releng/8.2 in preparation for FreeBSD-8.2 release.
[FreeBSD/releng/8.2.git] / sys / dev / usb / storage / urio.c
1 /*-
2  * Copyright (c) 2000 Iwasa Kazmi
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  * 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  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
18  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * This code is based on ugen.c and ulpt.c developed by Lennart Augustsson.
27  * This code includes software developed by the NetBSD Foundation, Inc. and
28  * its contributors.
29  */
30
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33
34
35 /*
36  * 2000/3/24  added NetBSD/OpenBSD support (from Alex Nemirovsky)
37  * 2000/3/07  use two bulk-pipe handles for read and write (Dirk)
38  * 2000/3/06  change major number(143), and copyright header
39  *            some fix for 4.0 (Dirk)
40  * 2000/3/05  codes for FreeBSD 4.x - CURRENT (Thanks to Dirk-Willem van Gulik)
41  * 2000/3/01  remove retry code from urioioctl()
42  *            change method of bulk transfer (no interrupt)
43  * 2000/2/28  small fixes for new rio_usb.h
44  * 2000/2/24  first version.
45  */
46
47 #include <sys/stdint.h>
48 #include <sys/stddef.h>
49 #include <sys/param.h>
50 #include <sys/queue.h>
51 #include <sys/types.h>
52 #include <sys/systm.h>
53 #include <sys/kernel.h>
54 #include <sys/bus.h>
55 #include <sys/linker_set.h>
56 #include <sys/module.h>
57 #include <sys/lock.h>
58 #include <sys/mutex.h>
59 #include <sys/condvar.h>
60 #include <sys/sysctl.h>
61 #include <sys/sx.h>
62 #include <sys/unistd.h>
63 #include <sys/callout.h>
64 #include <sys/malloc.h>
65 #include <sys/priv.h>
66 #include <sys/conf.h>
67 #include <sys/fcntl.h>
68
69 #include <dev/usb/usb.h>
70 #include <dev/usb/usbdi.h>
71 #include "usbdevs.h"
72
73 #include <dev/usb/usb_ioctl.h>
74 #include <dev/usb/usb_generic.h>
75
76 #define USB_DEBUG_VAR urio_debug
77 #include <dev/usb/usb_debug.h>
78
79 #include <dev/usb/storage/rio500_usb.h>
80
81 #ifdef USB_DEBUG
82 static int urio_debug = 0;
83
84 SYSCTL_NODE(_hw_usb, OID_AUTO, urio, CTLFLAG_RW, 0, "USB urio");
85 SYSCTL_INT(_hw_usb_urio, OID_AUTO, debug, CTLFLAG_RW,
86     &urio_debug, 0, "urio debug level");
87 #endif
88
89 #define URIO_T_WR     0
90 #define URIO_T_RD     1
91 #define URIO_T_WR_CS  2
92 #define URIO_T_RD_CS  3
93 #define URIO_T_MAX    4
94
95 #define URIO_BSIZE      (1<<12)         /* bytes */
96 #define URIO_IFQ_MAXLEN      2          /* units */
97
98 struct urio_softc {
99         struct usb_fifo_sc sc_fifo;
100         struct mtx sc_mtx;
101
102         struct usb_device *sc_udev;
103         struct usb_xfer *sc_xfer[URIO_T_MAX];
104
105         uint8_t sc_flags;
106 #define URIO_FLAG_READ_STALL    0x01    /* read transfer stalled */
107 #define URIO_FLAG_WRITE_STALL   0x02    /* write transfer stalled */
108
109         uint8_t sc_name[16];
110 };
111
112 /* prototypes */
113
114 static device_probe_t urio_probe;
115 static device_attach_t urio_attach;
116 static device_detach_t urio_detach;
117
118 static usb_callback_t urio_write_callback;
119 static usb_callback_t urio_write_clear_stall_callback;
120 static usb_callback_t urio_read_callback;
121 static usb_callback_t urio_read_clear_stall_callback;
122
123 static usb_fifo_close_t urio_close;
124 static usb_fifo_cmd_t urio_start_read;
125 static usb_fifo_cmd_t urio_start_write;
126 static usb_fifo_cmd_t urio_stop_read;
127 static usb_fifo_cmd_t urio_stop_write;
128 static usb_fifo_ioctl_t urio_ioctl;
129 static usb_fifo_open_t urio_open;
130
131 static struct usb_fifo_methods urio_fifo_methods = {
132         .f_close = &urio_close,
133         .f_ioctl = &urio_ioctl,
134         .f_open = &urio_open,
135         .f_start_read = &urio_start_read,
136         .f_start_write = &urio_start_write,
137         .f_stop_read = &urio_stop_read,
138         .f_stop_write = &urio_stop_write,
139         .basename[0] = "urio",
140 };
141
142 static const struct usb_config urio_config[URIO_T_MAX] = {
143         [URIO_T_WR] = {
144                 .type = UE_BULK,
145                 .endpoint = UE_ADDR_ANY,
146                 .direction = UE_DIR_OUT,
147                 .bufsize = URIO_BSIZE,
148                 .flags = {.pipe_bof = 1,.force_short_xfer = 1,.proxy_buffer = 1,},
149                 .callback = &urio_write_callback,
150         },
151
152         [URIO_T_RD] = {
153                 .type = UE_BULK,
154                 .endpoint = UE_ADDR_ANY,
155                 .direction = UE_DIR_IN,
156                 .bufsize = URIO_BSIZE,
157                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.proxy_buffer = 1,},
158                 .callback = &urio_read_callback,
159         },
160
161         [URIO_T_WR_CS] = {
162                 .type = UE_CONTROL,
163                 .endpoint = 0x00,       /* Control pipe */
164                 .direction = UE_DIR_ANY,
165                 .bufsize = sizeof(struct usb_device_request),
166                 .callback = &urio_write_clear_stall_callback,
167                 .timeout = 1000,        /* 1 second */
168                 .interval = 50, /* 50ms */
169         },
170
171         [URIO_T_RD_CS] = {
172                 .type = UE_CONTROL,
173                 .endpoint = 0x00,       /* Control pipe */
174                 .direction = UE_DIR_ANY,
175                 .bufsize = sizeof(struct usb_device_request),
176                 .callback = &urio_read_clear_stall_callback,
177                 .timeout = 1000,        /* 1 second */
178                 .interval = 50, /* 50ms */
179         },
180 };
181
182 static devclass_t urio_devclass;
183
184 static device_method_t urio_methods[] = {
185         /* Device interface */
186         DEVMETHOD(device_probe, urio_probe),
187         DEVMETHOD(device_attach, urio_attach),
188         DEVMETHOD(device_detach, urio_detach),
189         {0, 0}
190 };
191
192 static driver_t urio_driver = {
193         .name = "urio",
194         .methods = urio_methods,
195         .size = sizeof(struct urio_softc),
196 };
197
198 DRIVER_MODULE(urio, uhub, urio_driver, urio_devclass, NULL, 0);
199 MODULE_DEPEND(urio, usb, 1, 1, 1);
200 MODULE_VERSION(urio, 1);
201
202 static int
203 urio_probe(device_t dev)
204 {
205         struct usb_attach_arg *uaa = device_get_ivars(dev);
206
207         if (uaa->usb_mode != USB_MODE_HOST) {
208                 return (ENXIO);
209         }
210         if ((((uaa->info.idVendor == USB_VENDOR_DIAMOND) &&
211             (uaa->info.idProduct == USB_PRODUCT_DIAMOND_RIO500USB)) ||
212             ((uaa->info.idVendor == USB_VENDOR_DIAMOND2) &&
213             ((uaa->info.idProduct == USB_PRODUCT_DIAMOND2_RIO600USB) ||
214             (uaa->info.idProduct == USB_PRODUCT_DIAMOND2_RIO800USB)))))
215                 return (0);
216         else
217                 return (ENXIO);
218 }
219
220 static int
221 urio_attach(device_t dev)
222 {
223         struct usb_attach_arg *uaa = device_get_ivars(dev);
224         struct urio_softc *sc = device_get_softc(dev);
225         int error;
226
227         device_set_usb_desc(dev);
228
229         sc->sc_udev = uaa->device;
230
231         mtx_init(&sc->sc_mtx, "urio lock", NULL, MTX_DEF | MTX_RECURSE);
232
233         snprintf(sc->sc_name, sizeof(sc->sc_name),
234             "%s", device_get_nameunit(dev));
235
236         error = usbd_transfer_setup(uaa->device,
237             &uaa->info.bIfaceIndex, sc->sc_xfer,
238             urio_config, URIO_T_MAX, sc, &sc->sc_mtx);
239
240         if (error) {
241                 DPRINTF("error=%s\n", usbd_errstr(error));
242                 goto detach;
243         }
244
245         error = usb_fifo_attach(uaa->device, sc, &sc->sc_mtx,
246             &urio_fifo_methods, &sc->sc_fifo,
247             device_get_unit(dev), 0 - 1, uaa->info.bIfaceIndex,
248             UID_ROOT, GID_OPERATOR, 0644);
249         if (error) {
250                 goto detach;
251         }
252         return (0);                     /* success */
253
254 detach:
255         urio_detach(dev);
256         return (ENOMEM);                /* failure */
257 }
258
259 static void
260 urio_write_callback(struct usb_xfer *xfer, usb_error_t error)
261 {
262         struct urio_softc *sc = usbd_xfer_softc(xfer);
263         struct usb_fifo *f = sc->sc_fifo.fp[USB_FIFO_TX];
264         struct usb_page_cache *pc;
265         uint32_t actlen;
266
267         switch (USB_GET_STATE(xfer)) {
268         case USB_ST_TRANSFERRED:
269         case USB_ST_SETUP:
270                 if (sc->sc_flags & URIO_FLAG_WRITE_STALL) {
271                         usbd_transfer_start(sc->sc_xfer[URIO_T_WR_CS]);
272                         return;
273                 }
274                 pc = usbd_xfer_get_frame(xfer, 0);
275                 if (usb_fifo_get_data(f, pc, 0,
276                     usbd_xfer_max_len(xfer), &actlen, 0)) {
277
278                         usbd_xfer_set_frame_len(xfer, 0, actlen);
279                         usbd_transfer_submit(xfer);
280                 }
281                 return;
282
283         default:                        /* Error */
284                 if (error != USB_ERR_CANCELLED) {
285                         /* try to clear stall first */
286                         sc->sc_flags |= URIO_FLAG_WRITE_STALL;
287                         usbd_transfer_start(sc->sc_xfer[URIO_T_WR_CS]);
288                 }
289                 return;
290         }
291 }
292
293 static void
294 urio_write_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error)
295 {
296         struct urio_softc *sc = usbd_xfer_softc(xfer);
297         struct usb_xfer *xfer_other = sc->sc_xfer[URIO_T_WR];
298
299         if (usbd_clear_stall_callback(xfer, xfer_other)) {
300                 DPRINTF("stall cleared\n");
301                 sc->sc_flags &= ~URIO_FLAG_WRITE_STALL;
302                 usbd_transfer_start(xfer_other);
303         }
304 }
305
306 static void
307 urio_read_callback(struct usb_xfer *xfer, usb_error_t error)
308 {
309         struct urio_softc *sc = usbd_xfer_softc(xfer);
310         struct usb_fifo *f = sc->sc_fifo.fp[USB_FIFO_RX];
311         struct usb_page_cache *pc;
312         int actlen;
313
314         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
315
316         switch (USB_GET_STATE(xfer)) {
317         case USB_ST_TRANSFERRED:
318                 pc = usbd_xfer_get_frame(xfer, 0);
319                 usb_fifo_put_data(f, pc, 0, actlen, 1);
320
321         case USB_ST_SETUP:
322                 if (sc->sc_flags & URIO_FLAG_READ_STALL) {
323                         usbd_transfer_start(sc->sc_xfer[URIO_T_RD_CS]);
324                         return;
325                 }
326                 if (usb_fifo_put_bytes_max(f) != 0) {
327                         usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
328                         usbd_transfer_submit(xfer);
329                 }
330                 return;
331
332         default:                        /* Error */
333                 if (error != USB_ERR_CANCELLED) {
334                         /* try to clear stall first */
335                         sc->sc_flags |= URIO_FLAG_READ_STALL;
336                         usbd_transfer_start(sc->sc_xfer[URIO_T_RD_CS]);
337                 }
338                 return;
339         }
340 }
341
342 static void
343 urio_read_clear_stall_callback(struct usb_xfer *xfer, usb_error_t error)
344 {
345         struct urio_softc *sc = usbd_xfer_softc(xfer);
346         struct usb_xfer *xfer_other = sc->sc_xfer[URIO_T_RD];
347
348         if (usbd_clear_stall_callback(xfer, xfer_other)) {
349                 DPRINTF("stall cleared\n");
350                 sc->sc_flags &= ~URIO_FLAG_READ_STALL;
351                 usbd_transfer_start(xfer_other);
352         }
353 }
354
355 static void
356 urio_start_read(struct usb_fifo *fifo)
357 {
358         struct urio_softc *sc = usb_fifo_softc(fifo);
359
360         usbd_transfer_start(sc->sc_xfer[URIO_T_RD]);
361 }
362
363 static void
364 urio_stop_read(struct usb_fifo *fifo)
365 {
366         struct urio_softc *sc = usb_fifo_softc(fifo);
367
368         usbd_transfer_stop(sc->sc_xfer[URIO_T_RD_CS]);
369         usbd_transfer_stop(sc->sc_xfer[URIO_T_RD]);
370 }
371
372 static void
373 urio_start_write(struct usb_fifo *fifo)
374 {
375         struct urio_softc *sc = usb_fifo_softc(fifo);
376
377         usbd_transfer_start(sc->sc_xfer[URIO_T_WR]);
378 }
379
380 static void
381 urio_stop_write(struct usb_fifo *fifo)
382 {
383         struct urio_softc *sc = usb_fifo_softc(fifo);
384
385         usbd_transfer_stop(sc->sc_xfer[URIO_T_WR_CS]);
386         usbd_transfer_stop(sc->sc_xfer[URIO_T_WR]);
387 }
388
389 static int
390 urio_open(struct usb_fifo *fifo, int fflags)
391 {
392         struct urio_softc *sc = usb_fifo_softc(fifo);
393
394         if (fflags & FREAD) {
395                 /* clear stall first */
396                 mtx_lock(&sc->sc_mtx);
397                 sc->sc_flags |= URIO_FLAG_READ_STALL;
398                 mtx_unlock(&sc->sc_mtx);
399
400                 if (usb_fifo_alloc_buffer(fifo,
401                     usbd_xfer_max_len(sc->sc_xfer[URIO_T_RD]),
402                     URIO_IFQ_MAXLEN)) {
403                         return (ENOMEM);
404                 }
405         }
406         if (fflags & FWRITE) {
407                 /* clear stall first */
408                 sc->sc_flags |= URIO_FLAG_WRITE_STALL;
409
410                 if (usb_fifo_alloc_buffer(fifo,
411                     usbd_xfer_max_len(sc->sc_xfer[URIO_T_WR]),
412                     URIO_IFQ_MAXLEN)) {
413                         return (ENOMEM);
414                 }
415         }
416         return (0);                     /* success */
417 }
418
419 static void
420 urio_close(struct usb_fifo *fifo, int fflags)
421 {
422         if (fflags & (FREAD | FWRITE)) {
423                 usb_fifo_free_buffer(fifo);
424         }
425 }
426
427 static int
428 urio_ioctl(struct usb_fifo *fifo, u_long cmd, void *addr,
429     int fflags)
430 {
431         struct usb_ctl_request ur;
432         struct RioCommand *rio_cmd;
433         int error;
434
435         switch (cmd) {
436         case RIO_RECV_COMMAND:
437                 if (!(fflags & FWRITE)) {
438                         error = EPERM;
439                         goto done;
440                 }
441                 bzero(&ur, sizeof(ur));
442                 rio_cmd = addr;
443                 ur.ucr_request.bmRequestType =
444                     rio_cmd->requesttype | UT_READ_VENDOR_DEVICE;
445                 break;
446
447         case RIO_SEND_COMMAND:
448                 if (!(fflags & FWRITE)) {
449                         error = EPERM;
450                         goto done;
451                 }
452                 bzero(&ur, sizeof(ur));
453                 rio_cmd = addr;
454                 ur.ucr_request.bmRequestType =
455                     rio_cmd->requesttype | UT_WRITE_VENDOR_DEVICE;
456                 break;
457
458         default:
459                 error = EINVAL;
460                 goto done;
461         }
462
463         DPRINTFN(2, "Sending command\n");
464
465         /* Send rio control message */
466         ur.ucr_request.bRequest = rio_cmd->request;
467         USETW(ur.ucr_request.wValue, rio_cmd->value);
468         USETW(ur.ucr_request.wIndex, rio_cmd->index);
469         USETW(ur.ucr_request.wLength, rio_cmd->length);
470         ur.ucr_data = rio_cmd->buffer;
471
472         /* reuse generic USB code */
473         error = ugen_do_request(fifo, &ur);
474
475 done:
476         return (error);
477 }
478
479 static int
480 urio_detach(device_t dev)
481 {
482         struct urio_softc *sc = device_get_softc(dev);
483
484         DPRINTF("\n");
485
486         usb_fifo_detach(&sc->sc_fifo);
487
488         usbd_transfer_unsetup(sc->sc_xfer, URIO_T_MAX);
489
490         mtx_destroy(&sc->sc_mtx);
491
492         return (0);
493 }