| 1 | /* |
| 2 | * $NetBSD: ugen.c,v 1.27 1999/10/28 12:08:38 augustss Exp $ |
| 3 | * $NetBSD: ugen.c,v 1.59 2002/07/11 21:14:28 augustss Exp $ |
| 4 | * $FreeBSD: src/sys/dev/usb/ugen.c,v 1.81 2003/11/09 09:17:22 tanimura Exp $ |
| 5 | * $DragonFly: src/sys/dev/usbmisc/ugen/ugen.c,v 1.25 2007/06/27 12:28:00 hasso Exp $ |
| 6 | */ |
| 7 | |
| 8 | /* |
| 9 | * Also already merged from NetBSD: |
| 10 | * $NetBSD: ugen.c,v 1.61 2002/09/23 05:51:20 simonb Exp $ |
| 11 | * $NetBSD: ugen.c,v 1.64 2003/06/28 14:21:46 darrenr Exp $ |
| 12 | * $NetBSD: ugen.c,v 1.65 2003/06/29 22:30:56 fvdl Exp $ |
| 13 | */ |
| 14 | |
| 15 | /* |
| 16 | * Copyright (c) 1998 The NetBSD Foundation, Inc. |
| 17 | * All rights reserved. |
| 18 | * |
| 19 | * This code is derived from software contributed to The NetBSD Foundation |
| 20 | * by Lennart Augustsson (lennart@augustsson.net) at |
| 21 | * Carlstedt Research & Technology. |
| 22 | * |
| 23 | * Redistribution and use in source and binary forms, with or without |
| 24 | * modification, are permitted provided that the following conditions |
| 25 | * are met: |
| 26 | * 1. Redistributions of source code must retain the above copyright |
| 27 | * notice, this list of conditions and the following disclaimer. |
| 28 | * 2. Redistributions in binary form must reproduce the above copyright |
| 29 | * notice, this list of conditions and the following disclaimer in the |
| 30 | * documentation and/or other materials provided with the distribution. |
| 31 | * 3. All advertising materials mentioning features or use of this software |
| 32 | * must display the following acknowledgement: |
| 33 | * This product includes software developed by the NetBSD |
| 34 | * Foundation, Inc. and its contributors. |
| 35 | * 4. Neither the name of The NetBSD Foundation nor the names of its |
| 36 | * contributors may be used to endorse or promote products derived |
| 37 | * from this software without specific prior written permission. |
| 38 | * |
| 39 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 40 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 41 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 43 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 44 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 45 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 46 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 47 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 48 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 49 | * POSSIBILITY OF SUCH DAMAGE. |
| 50 | */ |
| 51 | |
| 52 | |
| 53 | #include <sys/param.h> |
| 54 | #include <sys/systm.h> |
| 55 | #include <sys/kernel.h> |
| 56 | #include <sys/malloc.h> |
| 57 | #include <sys/module.h> |
| 58 | #include <sys/bus.h> |
| 59 | #include <sys/ioccom.h> |
| 60 | #include <sys/conf.h> |
| 61 | #include <sys/fcntl.h> |
| 62 | #include <sys/filio.h> |
| 63 | #include <sys/tty.h> |
| 64 | #include <sys/file.h> |
| 65 | #include <sys/select.h> |
| 66 | #include <sys/vnode.h> |
| 67 | #include <sys/poll.h> |
| 68 | #include <sys/sysctl.h> |
| 69 | #include <sys/thread2.h> |
| 70 | |
| 71 | #include <bus/usb/usb.h> |
| 72 | #include <bus/usb/usbdi.h> |
| 73 | #include <bus/usb/usbdi_util.h> |
| 74 | |
| 75 | #include "ugenbuf.h" |
| 76 | |
| 77 | SYSCTL_NODE(_hw_usb, OID_AUTO, ugen, CTLFLAG_RW, 0, "USB ugen"); |
| 78 | |
| 79 | #ifdef USB_DEBUG |
| 80 | #define DPRINTF(x) if (ugendebug) logprintf x |
| 81 | #define DPRINTFN(n,x) if (ugendebug>(n)) logprintf x |
| 82 | int ugendebug = 0; |
| 83 | SYSCTL_INT(_hw_usb_ugen, OID_AUTO, debug, CTLFLAG_RW, |
| 84 | &ugendebug, 0, "ugen debug level"); |
| 85 | #else |
| 86 | #define DPRINTF(x) |
| 87 | #define DPRINTFN(n,x) |
| 88 | #endif |
| 89 | |
| 90 | static int ugen_bufsize = 16384; |
| 91 | SYSCTL_INT(_hw_usb_ugen, OID_AUTO, bufsize, CTLFLAG_RW, |
| 92 | &ugen_bufsize, 0, "ugen temporary buffer size"); |
| 93 | |
| 94 | #define UGEN_CHUNK 128 /* chunk size for read */ |
| 95 | #define UGEN_IBSIZE 1020 /* buffer size */ |
| 96 | |
| 97 | #define UGEN_NISOFRAMES 500 /* 0.5 seconds worth */ |
| 98 | #define UGEN_NISOREQS 6 /* number of outstanding xfer requests */ |
| 99 | #define UGEN_NISORFRMS 4 /* number of frames (miliseconds) per req */ |
| 100 | |
| 101 | struct ugen_endpoint { |
| 102 | struct ugen_softc *sc; |
| 103 | cdev_t dev; |
| 104 | usb_endpoint_descriptor_t *edesc; |
| 105 | usbd_interface_handle iface; |
| 106 | int state; |
| 107 | #define UGEN_ASLP 0x02 /* waiting for data */ |
| 108 | #define UGEN_SHORT_OK 0x04 /* short xfers are OK */ |
| 109 | usbd_pipe_handle pipeh; |
| 110 | struct clist q; |
| 111 | struct selinfo rsel; |
| 112 | u_char *ibuf; /* start of buffer (circular for isoc) */ |
| 113 | u_char *fill; /* location for input (isoc) */ |
| 114 | u_char *limit; /* end of circular buffer (isoc) */ |
| 115 | u_char *cur; /* current read location (isoc) */ |
| 116 | u_int32_t timeout; |
| 117 | struct isoreq { |
| 118 | struct ugen_endpoint *sce; |
| 119 | usbd_xfer_handle xfer; |
| 120 | void *dmabuf; |
| 121 | u_int16_t sizes[UGEN_NISORFRMS]; |
| 122 | } isoreqs[UGEN_NISOREQS]; |
| 123 | }; |
| 124 | |
| 125 | struct ugen_softc { |
| 126 | USBBASEDEVICE sc_dev; /* base device */ |
| 127 | usbd_device_handle sc_udev; |
| 128 | |
| 129 | char sc_is_open[USB_MAX_ENDPOINTS]; |
| 130 | struct ugen_endpoint sc_endpoints[USB_MAX_ENDPOINTS][2]; |
| 131 | #define OUT 0 |
| 132 | #define IN 1 |
| 133 | |
| 134 | int sc_refcnt; |
| 135 | u_char sc_dying; |
| 136 | }; |
| 137 | |
| 138 | d_open_t ugenopen; |
| 139 | d_close_t ugenclose; |
| 140 | d_read_t ugenread; |
| 141 | d_write_t ugenwrite; |
| 142 | d_ioctl_t ugenioctl; |
| 143 | d_poll_t ugenpoll; |
| 144 | |
| 145 | #define UGEN_CDEV_MAJOR 114 |
| 146 | |
| 147 | Static struct dev_ops ugen_ops = { |
| 148 | { "ugen", UGEN_CDEV_MAJOR, 0 }, |
| 149 | .d_open = ugenopen, |
| 150 | .d_close = ugenclose, |
| 151 | .d_read = ugenread, |
| 152 | .d_write = ugenwrite, |
| 153 | .d_ioctl = ugenioctl, |
| 154 | .d_poll = ugenpoll, |
| 155 | }; |
| 156 | |
| 157 | Static void ugenintr(usbd_xfer_handle xfer, usbd_private_handle addr, |
| 158 | usbd_status status); |
| 159 | Static void ugen_isoc_rintr(usbd_xfer_handle xfer, usbd_private_handle addr, |
| 160 | usbd_status status); |
| 161 | Static int ugen_do_read(struct ugen_softc *, int, struct uio *, int); |
| 162 | Static int ugen_do_write(struct ugen_softc *, int, struct uio *, int); |
| 163 | Static int ugen_do_ioctl(struct ugen_softc *, int, u_long, |
| 164 | caddr_t, int); |
| 165 | Static void ugen_make_devnodes(struct ugen_softc *sc); |
| 166 | Static void ugen_destroy_devnodes(struct ugen_softc *sc); |
| 167 | Static int ugen_set_config(struct ugen_softc *sc, int configno); |
| 168 | Static usb_config_descriptor_t *ugen_get_cdesc(struct ugen_softc *sc, |
| 169 | int index, int *lenp); |
| 170 | Static usbd_status ugen_set_interface(struct ugen_softc *, int, int); |
| 171 | Static int ugen_get_alt_index(struct ugen_softc *sc, int ifaceidx); |
| 172 | |
| 173 | #define UGENUNIT(n) ((lminor(n) >> 4) & 0xff) |
| 174 | #define UGENENDPOINT(n) (minor(n) & 0xf) |
| 175 | #define UGENMINOR(u, e) (((u & 0xf) << 4) | ((u & 0xf0) << 12) | (e)) |
| 176 | #define UGENUNITMASK 0xffff00f0 |
| 177 | |
| 178 | USB_DECLARE_DRIVER(ugen); |
| 179 | |
| 180 | USB_MATCH(ugen) |
| 181 | { |
| 182 | USB_MATCH_START(ugen, uaa); |
| 183 | |
| 184 | #if 0 |
| 185 | if (uaa->matchlvl) |
| 186 | return (uaa->matchlvl); |
| 187 | #endif |
| 188 | if (uaa->usegeneric) |
| 189 | return (UMATCH_GENERIC); |
| 190 | else |
| 191 | return (UMATCH_NONE); |
| 192 | } |
| 193 | |
| 194 | USB_ATTACH(ugen) |
| 195 | { |
| 196 | USB_ATTACH_START(ugen, sc, uaa); |
| 197 | usbd_device_handle udev; |
| 198 | char devinfo[1024]; |
| 199 | usbd_status err; |
| 200 | int conf; |
| 201 | |
| 202 | usbd_devinfo(uaa->device, 0, devinfo); |
| 203 | USB_ATTACH_SETUP; |
| 204 | kprintf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); |
| 205 | |
| 206 | sc->sc_udev = udev = uaa->device; |
| 207 | |
| 208 | memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); |
| 209 | |
| 210 | /* First set configuration index 0, the default one for ugen. */ |
| 211 | err = usbd_set_config_index(udev, 0, 0); |
| 212 | if (err) { |
| 213 | kprintf("%s: setting configuration index 0 failed\n", |
| 214 | USBDEVNAME(sc->sc_dev)); |
| 215 | sc->sc_dying = 1; |
| 216 | USB_ATTACH_ERROR_RETURN; |
| 217 | } |
| 218 | conf = usbd_get_config_descriptor(udev)->bConfigurationValue; |
| 219 | |
| 220 | /* Set up all the local state for this configuration. */ |
| 221 | err = ugen_set_config(sc, conf); |
| 222 | if (err) { |
| 223 | kprintf("%s: setting configuration %d failed\n", |
| 224 | USBDEVNAME(sc->sc_dev), conf); |
| 225 | sc->sc_dying = 1; |
| 226 | USB_ATTACH_ERROR_RETURN; |
| 227 | } |
| 228 | |
| 229 | /* the main device, ctrl endpoint */ |
| 230 | dev_ops_add(&ugen_ops, |
| 231 | UGENUNITMASK, UGENMINOR(USBDEVUNIT(sc->sc_dev), 0)); |
| 232 | make_dev(&ugen_ops, UGENMINOR(USBDEVUNIT(sc->sc_dev), 0), |
| 233 | UID_ROOT, GID_OPERATOR, 0644, "%s", USBDEVNAME(sc->sc_dev)); |
| 234 | |
| 235 | USB_ATTACH_SUCCESS_RETURN; |
| 236 | } |
| 237 | |
| 238 | Static void |
| 239 | ugen_make_devnodes(struct ugen_softc *sc) |
| 240 | { |
| 241 | int endptno; |
| 242 | cdev_t dev; |
| 243 | |
| 244 | for (endptno = 1; endptno < USB_MAX_ENDPOINTS; endptno++) { |
| 245 | if (sc->sc_endpoints[endptno][IN].sc != NULL || |
| 246 | sc->sc_endpoints[endptno][OUT].sc != NULL ) { |
| 247 | /* endpt can be 0x81 and 0x01, representing |
| 248 | * endpoint address 0x01 and IN/OUT directions. |
| 249 | * We map both endpts to the same device, |
| 250 | * IN is reading from it, OUT is writing to it. |
| 251 | * |
| 252 | * In the if clause above we check whether one |
| 253 | * of the structs is populated. |
| 254 | */ |
| 255 | dev = make_dev(&ugen_ops, |
| 256 | UGENMINOR(USBDEVUNIT(sc->sc_dev), endptno), |
| 257 | UID_ROOT, GID_OPERATOR, 0644, |
| 258 | "%s.%d", |
| 259 | USBDEVNAME(sc->sc_dev), endptno); |
| 260 | if (sc->sc_endpoints[endptno][IN].sc != NULL) { |
| 261 | reference_dev(dev); |
| 262 | if (sc->sc_endpoints[endptno][IN].dev) |
| 263 | release_dev(sc->sc_endpoints[endptno][IN].dev); |
| 264 | sc->sc_endpoints[endptno][IN].dev = dev; |
| 265 | } |
| 266 | if (sc->sc_endpoints[endptno][OUT].sc != NULL) { |
| 267 | reference_dev(dev); |
| 268 | if (sc->sc_endpoints[endptno][OUT].dev) |
| 269 | release_dev(sc->sc_endpoints[endptno][OUT].dev); |
| 270 | sc->sc_endpoints[endptno][OUT].dev = dev; |
| 271 | } |
| 272 | } |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | Static void |
| 277 | ugen_destroy_devnodes(struct ugen_softc *sc) |
| 278 | { |
| 279 | int endptno; |
| 280 | cdev_t dev; |
| 281 | |
| 282 | /* destroy all devices for the other (existing) endpoints as well */ |
| 283 | for (endptno = 1; endptno < USB_MAX_ENDPOINTS; endptno++) { |
| 284 | if (sc->sc_endpoints[endptno][IN].sc != NULL || |
| 285 | sc->sc_endpoints[endptno][OUT].sc != NULL ) { |
| 286 | /* endpt can be 0x81 and 0x01, representing |
| 287 | * endpoint address 0x01 and IN/OUT directions. |
| 288 | * We map both endpoint addresses to the same device, |
| 289 | * IN is reading from it, OUT is writing to it. |
| 290 | * |
| 291 | * In the if clause above we check whether one |
| 292 | * of the structs is populated. |
| 293 | */ |
| 294 | dev = sc->sc_endpoints[endptno][IN].dev; |
| 295 | if (dev != NULL) { |
| 296 | destroy_dev(dev); |
| 297 | sc->sc_endpoints[endptno][IN].dev = NULL; |
| 298 | } |
| 299 | dev = sc->sc_endpoints[endptno][OUT].dev; |
| 300 | if (dev != NULL) { |
| 301 | destroy_dev(dev); |
| 302 | sc->sc_endpoints[endptno][OUT].dev = NULL; |
| 303 | } |
| 304 | } |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | Static int |
| 309 | ugen_set_config(struct ugen_softc *sc, int configno) |
| 310 | { |
| 311 | usbd_device_handle dev = sc->sc_udev; |
| 312 | usbd_interface_handle iface; |
| 313 | usb_endpoint_descriptor_t *ed; |
| 314 | struct ugen_endpoint *sce; |
| 315 | u_int8_t niface, nendpt; |
| 316 | int ifaceno, endptno, endpt; |
| 317 | usbd_status err; |
| 318 | int dir; |
| 319 | |
| 320 | DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n", |
| 321 | USBDEVNAME(sc->sc_dev), configno, sc)); |
| 322 | |
| 323 | ugen_destroy_devnodes(sc); |
| 324 | |
| 325 | /* We start at 1, not 0, because we don't care whether the |
| 326 | * control endpoint is open or not. It is always present. |
| 327 | */ |
| 328 | for (endptno = 1; endptno < USB_MAX_ENDPOINTS; endptno++) { |
| 329 | if (sc->sc_is_open[endptno]) { |
| 330 | DPRINTFN(1, |
| 331 | ("ugen_set_config: %s - endpoint %d is open\n", |
| 332 | USBDEVNAME(sc->sc_dev), endptno)); |
| 333 | return (USBD_IN_USE); |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | /* Avoid setting the current value. */ |
| 338 | if (usbd_get_config_descriptor(dev)->bConfigurationValue != configno) { |
| 339 | err = usbd_set_config_no(dev, configno, 1); |
| 340 | if (err) |
| 341 | return (err); |
| 342 | } |
| 343 | |
| 344 | err = usbd_interface_count(dev, &niface); |
| 345 | if (err) |
| 346 | return (err); |
| 347 | memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); |
| 348 | for (ifaceno = 0; ifaceno < niface; ifaceno++) { |
| 349 | DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno)); |
| 350 | err = usbd_device2interface_handle(dev, ifaceno, &iface); |
| 351 | if (err) |
| 352 | return (err); |
| 353 | err = usbd_endpoint_count(iface, &nendpt); |
| 354 | if (err) |
| 355 | return (err); |
| 356 | for (endptno = 0; endptno < nendpt; endptno++) { |
| 357 | ed = usbd_interface2endpoint_descriptor(iface,endptno); |
| 358 | endpt = ed->bEndpointAddress; |
| 359 | dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; |
| 360 | sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; |
| 361 | DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x" |
| 362 | "(%d,%d), sce=%p\n", |
| 363 | endptno, endpt, UE_GET_ADDR(endpt), |
| 364 | UE_GET_DIR(endpt), sce)); |
| 365 | sce->sc = sc; |
| 366 | sce->edesc = ed; |
| 367 | sce->iface = iface; |
| 368 | } |
| 369 | } |
| 370 | |
| 371 | ugen_make_devnodes(sc); |
| 372 | |
| 373 | return (USBD_NORMAL_COMPLETION); |
| 374 | } |
| 375 | |
| 376 | int |
| 377 | ugenopen(struct dev_open_args *ap) |
| 378 | { |
| 379 | cdev_t dev = ap->a_head.a_dev; |
| 380 | struct ugen_softc *sc; |
| 381 | int unit = UGENUNIT(dev); |
| 382 | int endpt = UGENENDPOINT(dev); |
| 383 | usb_endpoint_descriptor_t *edesc; |
| 384 | struct ugen_endpoint *sce; |
| 385 | int dir, isize; |
| 386 | usbd_status err; |
| 387 | usbd_xfer_handle xfer; |
| 388 | void *buf; |
| 389 | int i, j; |
| 390 | |
| 391 | USB_GET_SC_OPEN(ugen, unit, sc); |
| 392 | |
| 393 | DPRINTFN(5, ("ugenopen: flag=%d, mode=%d, unit=%d endpt=%d\n", |
| 394 | ap->a_oflags, ap->a_devtype, unit, endpt)); |
| 395 | |
| 396 | if (sc == NULL || sc->sc_dying) |
| 397 | return (ENXIO); |
| 398 | |
| 399 | if (sc->sc_is_open[endpt]) |
| 400 | return (EBUSY); |
| 401 | |
| 402 | if (endpt == USB_CONTROL_ENDPOINT) { |
| 403 | sc->sc_is_open[USB_CONTROL_ENDPOINT] = 1; |
| 404 | return (0); |
| 405 | } |
| 406 | |
| 407 | /* Make sure there are pipes for all directions. */ |
| 408 | for (dir = OUT; dir <= IN; dir++) { |
| 409 | if (ap->a_oflags & (dir == OUT ? FWRITE : FREAD)) { |
| 410 | sce = &sc->sc_endpoints[endpt][dir]; |
| 411 | if (sce == 0 || sce->edesc == 0) |
| 412 | return (ENXIO); |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | /* Actually open the pipes. */ |
| 417 | /* XXX Should back out properly if it fails. */ |
| 418 | for (dir = OUT; dir <= IN; dir++) { |
| 419 | if (!(ap->a_oflags & (dir == OUT ? FWRITE : FREAD))) |
| 420 | continue; |
| 421 | sce = &sc->sc_endpoints[endpt][dir]; |
| 422 | sce->state = 0; |
| 423 | sce->timeout = USBD_NO_TIMEOUT; |
| 424 | DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n", |
| 425 | sc, endpt, dir, sce)); |
| 426 | edesc = sce->edesc; |
| 427 | switch (edesc->bmAttributes & UE_XFERTYPE) { |
| 428 | case UE_INTERRUPT: |
| 429 | if (dir == OUT) { |
| 430 | err = usbd_open_pipe(sce->iface, |
| 431 | edesc->bEndpointAddress, 0, &sce->pipeh); |
| 432 | if (err) |
| 433 | return (EIO); |
| 434 | break; |
| 435 | } |
| 436 | isize = UGETW(edesc->wMaxPacketSize); |
| 437 | if (isize == 0) /* shouldn't happen */ |
| 438 | return (EINVAL); |
| 439 | sce->ibuf = kmalloc(isize, M_USBDEV, M_WAITOK); |
| 440 | DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n", |
| 441 | endpt, isize)); |
| 442 | if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1) |
| 443 | return (ENOMEM); |
| 444 | err = usbd_open_pipe_intr(sce->iface, |
| 445 | edesc->bEndpointAddress, |
| 446 | USBD_SHORT_XFER_OK, &sce->pipeh, sce, |
| 447 | sce->ibuf, isize, ugenintr, |
| 448 | USBD_DEFAULT_INTERVAL); |
| 449 | if (err) { |
| 450 | kfree(sce->ibuf, M_USBDEV); |
| 451 | clfree(&sce->q); |
| 452 | return (EIO); |
| 453 | } |
| 454 | DPRINTFN(5, ("ugenopen: interrupt open done\n")); |
| 455 | break; |
| 456 | case UE_BULK: |
| 457 | err = usbd_open_pipe(sce->iface, |
| 458 | edesc->bEndpointAddress, 0, &sce->pipeh); |
| 459 | if (err) |
| 460 | return (EIO); |
| 461 | break; |
| 462 | case UE_ISOCHRONOUS: |
| 463 | if (dir == OUT) |
| 464 | return (EINVAL); |
| 465 | isize = UGETW(edesc->wMaxPacketSize); |
| 466 | if (isize == 0) /* shouldn't happen */ |
| 467 | return (EINVAL); |
| 468 | sce->ibuf = kmalloc(isize * UGEN_NISOFRAMES, |
| 469 | M_USBDEV, M_WAITOK); |
| 470 | sce->cur = sce->fill = sce->ibuf; |
| 471 | sce->limit = sce->ibuf + isize * UGEN_NISOFRAMES; |
| 472 | DPRINTFN(5, ("ugenopen: isoc endpt=%d, isize=%d\n", |
| 473 | endpt, isize)); |
| 474 | err = usbd_open_pipe(sce->iface, |
| 475 | edesc->bEndpointAddress, 0, &sce->pipeh); |
| 476 | if (err) { |
| 477 | kfree(sce->ibuf, M_USBDEV); |
| 478 | return (EIO); |
| 479 | } |
| 480 | for(i = 0; i < UGEN_NISOREQS; ++i) { |
| 481 | sce->isoreqs[i].sce = sce; |
| 482 | xfer = usbd_alloc_xfer(sc->sc_udev); |
| 483 | if (xfer == 0) |
| 484 | goto bad; |
| 485 | sce->isoreqs[i].xfer = xfer; |
| 486 | buf = usbd_alloc_buffer |
| 487 | (xfer, isize * UGEN_NISORFRMS); |
| 488 | if (buf == 0) { |
| 489 | i++; |
| 490 | goto bad; |
| 491 | } |
| 492 | sce->isoreqs[i].dmabuf = buf; |
| 493 | for(j = 0; j < UGEN_NISORFRMS; ++j) |
| 494 | sce->isoreqs[i].sizes[j] = isize; |
| 495 | usbd_setup_isoc_xfer |
| 496 | (xfer, sce->pipeh, &sce->isoreqs[i], |
| 497 | sce->isoreqs[i].sizes, |
| 498 | UGEN_NISORFRMS, USBD_NO_COPY, |
| 499 | ugen_isoc_rintr); |
| 500 | (void)usbd_transfer(xfer); |
| 501 | } |
| 502 | DPRINTFN(5, ("ugenopen: isoc open done\n")); |
| 503 | break; |
| 504 | bad: |
| 505 | while (--i >= 0) /* implicit buffer free */ |
| 506 | usbd_free_xfer(sce->isoreqs[i].xfer); |
| 507 | return (ENOMEM); |
| 508 | case UE_CONTROL: |
| 509 | sce->timeout = USBD_DEFAULT_TIMEOUT; |
| 510 | return (EINVAL); |
| 511 | } |
| 512 | } |
| 513 | sc->sc_is_open[endpt] = 1; |
| 514 | return (0); |
| 515 | } |
| 516 | |
| 517 | int |
| 518 | ugenclose(struct dev_close_args *ap) |
| 519 | { |
| 520 | cdev_t dev = ap->a_head.a_dev; |
| 521 | int endpt = UGENENDPOINT(dev); |
| 522 | struct ugen_softc *sc; |
| 523 | struct ugen_endpoint *sce; |
| 524 | int dir; |
| 525 | int i; |
| 526 | |
| 527 | USB_GET_SC(ugen, UGENUNIT(dev), sc); |
| 528 | |
| 529 | DPRINTFN(5, ("ugenclose: flag=%d, mode=%d, unit=%d, endpt=%d\n", |
| 530 | ap->a_fflag, ap->a_devtype, UGENUNIT(dev), endpt)); |
| 531 | |
| 532 | #ifdef DIAGNOSTIC |
| 533 | if (!sc->sc_is_open[endpt]) { |
| 534 | kprintf("ugenclose: not open\n"); |
| 535 | return (EINVAL); |
| 536 | } |
| 537 | #endif |
| 538 | |
| 539 | if (endpt == USB_CONTROL_ENDPOINT) { |
| 540 | DPRINTFN(5, ("ugenclose: close control\n")); |
| 541 | sc->sc_is_open[endpt] = 0; |
| 542 | return (0); |
| 543 | } |
| 544 | |
| 545 | for (dir = OUT; dir <= IN; dir++) { |
| 546 | if (!(ap->a_fflag & (dir == OUT ? FWRITE : FREAD))) |
| 547 | continue; |
| 548 | sce = &sc->sc_endpoints[endpt][dir]; |
| 549 | if (sce == NULL || sce->pipeh == NULL) |
| 550 | continue; |
| 551 | DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n", |
| 552 | endpt, dir, sce)); |
| 553 | |
| 554 | usbd_abort_pipe(sce->pipeh); |
| 555 | usbd_close_pipe(sce->pipeh); |
| 556 | sce->pipeh = NULL; |
| 557 | |
| 558 | switch (sce->edesc->bmAttributes & UE_XFERTYPE) { |
| 559 | case UE_INTERRUPT: |
| 560 | ndflush(&sce->q, sce->q.c_cc); |
| 561 | clfree(&sce->q); |
| 562 | break; |
| 563 | case UE_ISOCHRONOUS: |
| 564 | for (i = 0; i < UGEN_NISOREQS; ++i) |
| 565 | usbd_free_xfer(sce->isoreqs[i].xfer); |
| 566 | default: |
| 567 | break; |
| 568 | } |
| 569 | |
| 570 | if (sce->ibuf != NULL) { |
| 571 | kfree(sce->ibuf, M_USBDEV); |
| 572 | sce->ibuf = NULL; |
| 573 | clfree(&sce->q); |
| 574 | } |
| 575 | } |
| 576 | sc->sc_is_open[endpt] = 0; |
| 577 | |
| 578 | return (0); |
| 579 | } |
| 580 | |
| 581 | Static int |
| 582 | ugen_do_read(struct ugen_softc *sc, int endpt, struct uio *uio, int flag) |
| 583 | { |
| 584 | struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; |
| 585 | u_int32_t n, tn; |
| 586 | char *buf; |
| 587 | usbd_xfer_handle xfer; |
| 588 | usbd_status err; |
| 589 | int error = 0; |
| 590 | int ugen_bbsize; |
| 591 | u_char buffer[UGEN_CHUNK]; |
| 592 | |
| 593 | DPRINTFN(5, ("%s: ugenread: %d\n", USBDEVNAME(sc->sc_dev), endpt)); |
| 594 | |
| 595 | if (sc->sc_dying) |
| 596 | return (EIO); |
| 597 | |
| 598 | if (endpt == USB_CONTROL_ENDPOINT) |
| 599 | return (ENODEV); |
| 600 | |
| 601 | if (sce == NULL) |
| 602 | return (EINVAL); |
| 603 | |
| 604 | if (sce->edesc == NULL) { |
| 605 | kprintf("ugenread: no edesc\n"); |
| 606 | return (EIO); |
| 607 | } |
| 608 | if (sce->pipeh == NULL) { |
| 609 | kprintf("ugenread: no pipe\n"); |
| 610 | return (EIO); |
| 611 | } |
| 612 | |
| 613 | buf = getugenbuf(ugen_bufsize, &ugen_bbsize); |
| 614 | |
| 615 | switch (sce->edesc->bmAttributes & UE_XFERTYPE) { |
| 616 | case UE_INTERRUPT: |
| 617 | /* Block until activity occurred. */ |
| 618 | crit_enter(); |
| 619 | while (sce->q.c_cc == 0) { |
| 620 | if (flag & IO_NDELAY) { |
| 621 | crit_exit(); |
| 622 | error = EWOULDBLOCK; |
| 623 | goto done; |
| 624 | } |
| 625 | sce->state |= UGEN_ASLP; |
| 626 | DPRINTFN(5, ("ugenread: sleep on %p\n", sce)); |
| 627 | error = tsleep(sce, PCATCH, "ugenri", 0); |
| 628 | DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); |
| 629 | if (sc->sc_dying) |
| 630 | error = EIO; |
| 631 | if (error) { |
| 632 | sce->state &= ~UGEN_ASLP; |
| 633 | break; |
| 634 | } |
| 635 | } |
| 636 | crit_exit(); |
| 637 | |
| 638 | /* Transfer as many chunks as possible. */ |
| 639 | while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) { |
| 640 | n = min(sce->q.c_cc, uio->uio_resid); |
| 641 | if (n > sizeof(buffer)) |
| 642 | n = sizeof(buffer); |
| 643 | |
| 644 | /* Remove a small chunk from the input queue. */ |
| 645 | q_to_b(&sce->q, buffer, n); |
| 646 | DPRINTFN(5, ("ugenread: got %d chars\n", n)); |
| 647 | |
| 648 | /* Copy the data to the user process. */ |
| 649 | error = uiomove(buffer, n, uio); |
| 650 | if (error) |
| 651 | break; |
| 652 | } |
| 653 | break; |
| 654 | case UE_BULK: |
| 655 | xfer = usbd_alloc_xfer(sc->sc_udev); |
| 656 | if (xfer == 0) { |
| 657 | error = ENOMEM; |
| 658 | goto done; |
| 659 | } |
| 660 | while ((n = min(ugen_bbsize, uio->uio_resid)) != 0) { |
| 661 | DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n)); |
| 662 | tn = n; |
| 663 | err = usbd_bulk_transfer( |
| 664 | xfer, sce->pipeh, |
| 665 | sce->state & UGEN_SHORT_OK ? |
| 666 | USBD_SHORT_XFER_OK : 0, |
| 667 | sce->timeout, buf, &tn, "ugenrb"); |
| 668 | if (err) { |
| 669 | if (err == USBD_INTERRUPTED) |
| 670 | error = EINTR; |
| 671 | else if (err == USBD_TIMEOUT) |
| 672 | error = ETIMEDOUT; |
| 673 | else |
| 674 | error = EIO; |
| 675 | break; |
| 676 | } |
| 677 | DPRINTFN(1, ("ugenread: got %d bytes\n", tn)); |
| 678 | error = uiomove(buf, tn, uio); |
| 679 | if (error || tn < n) |
| 680 | break; |
| 681 | } |
| 682 | usbd_free_xfer(xfer); |
| 683 | break; |
| 684 | case UE_ISOCHRONOUS: |
| 685 | crit_enter(); |
| 686 | while (sce->cur == sce->fill) { |
| 687 | if (flag & IO_NDELAY) { |
| 688 | crit_exit(); |
| 689 | error = EWOULDBLOCK; |
| 690 | goto done; |
| 691 | } |
| 692 | sce->state |= UGEN_ASLP; |
| 693 | DPRINTFN(5, ("ugenread: sleep on %p\n", sce)); |
| 694 | error = tsleep(sce, PCATCH, "ugenri", 0); |
| 695 | DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); |
| 696 | if (sc->sc_dying) |
| 697 | error = EIO; |
| 698 | if (error) { |
| 699 | sce->state &= ~UGEN_ASLP; |
| 700 | break; |
| 701 | } |
| 702 | } |
| 703 | |
| 704 | while (sce->cur != sce->fill && uio->uio_resid > 0 && !error) { |
| 705 | if(sce->fill > sce->cur) |
| 706 | n = min(sce->fill - sce->cur, uio->uio_resid); |
| 707 | else |
| 708 | n = min(sce->limit - sce->cur, uio->uio_resid); |
| 709 | |
| 710 | DPRINTFN(5, ("ugenread: isoc got %d chars\n", n)); |
| 711 | |
| 712 | /* Copy the data to the user process. */ |
| 713 | error = uiomove(sce->cur, n, uio); |
| 714 | if (error) |
| 715 | break; |
| 716 | sce->cur += n; |
| 717 | if(sce->cur >= sce->limit) |
| 718 | sce->cur = sce->ibuf; |
| 719 | } |
| 720 | crit_exit(); |
| 721 | break; |
| 722 | |
| 723 | |
| 724 | default: |
| 725 | error = ENXIO; |
| 726 | break; |
| 727 | } |
| 728 | done: |
| 729 | relugenbuf(buf, ugen_bbsize); |
| 730 | return (error); |
| 731 | } |
| 732 | |
| 733 | int |
| 734 | ugenread(struct dev_read_args *ap) |
| 735 | { |
| 736 | cdev_t dev = ap->a_head.a_dev; |
| 737 | int endpt = UGENENDPOINT(dev); |
| 738 | struct ugen_softc *sc; |
| 739 | int error; |
| 740 | |
| 741 | USB_GET_SC(ugen, UGENUNIT(dev), sc); |
| 742 | |
| 743 | sc->sc_refcnt++; |
| 744 | error = ugen_do_read(sc, endpt, ap->a_uio, ap->a_ioflag); |
| 745 | if (--sc->sc_refcnt < 0) |
| 746 | usb_detach_wakeup(sc->sc_dev); |
| 747 | return (error); |
| 748 | } |
| 749 | |
| 750 | Static int |
| 751 | ugen_do_write(struct ugen_softc *sc, int endpt, struct uio *uio, int flag) |
| 752 | { |
| 753 | struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT]; |
| 754 | u_int32_t n; |
| 755 | int error = 0; |
| 756 | int ugen_bbsize; |
| 757 | char *buf; |
| 758 | usbd_xfer_handle xfer; |
| 759 | usbd_status err; |
| 760 | |
| 761 | DPRINTFN(5, ("%s: ugenwrite: %d\n", USBDEVNAME(sc->sc_dev), endpt)); |
| 762 | |
| 763 | if (sc->sc_dying) |
| 764 | return (EIO); |
| 765 | |
| 766 | if (endpt == USB_CONTROL_ENDPOINT) |
| 767 | return (ENODEV); |
| 768 | |
| 769 | if (sce == NULL) |
| 770 | return (EINVAL); |
| 771 | |
| 772 | if (sce->edesc == NULL) { |
| 773 | kprintf("ugenwrite: no edesc\n"); |
| 774 | return (EIO); |
| 775 | } |
| 776 | if (sce->pipeh == NULL) { |
| 777 | kprintf("ugenwrite: no pipe\n"); |
| 778 | return (EIO); |
| 779 | } |
| 780 | |
| 781 | buf = getugenbuf(ugen_bufsize, &ugen_bbsize); |
| 782 | |
| 783 | switch (sce->edesc->bmAttributes & UE_XFERTYPE) { |
| 784 | case UE_BULK: |
| 785 | xfer = usbd_alloc_xfer(sc->sc_udev); |
| 786 | if (xfer == 0) { |
| 787 | error = EIO; |
| 788 | goto done; |
| 789 | } |
| 790 | while ((n = min(ugen_bbsize, uio->uio_resid)) != 0) { |
| 791 | error = uiomove(buf, n, uio); |
| 792 | if (error) |
| 793 | break; |
| 794 | DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); |
| 795 | err = usbd_bulk_transfer(xfer, sce->pipeh, 0, |
| 796 | sce->timeout, buf, &n,"ugenwb"); |
| 797 | if (err) { |
| 798 | if (err == USBD_INTERRUPTED) |
| 799 | error = EINTR; |
| 800 | else if (err == USBD_TIMEOUT) |
| 801 | error = ETIMEDOUT; |
| 802 | else |
| 803 | error = EIO; |
| 804 | break; |
| 805 | } |
| 806 | } |
| 807 | usbd_free_xfer(xfer); |
| 808 | break; |
| 809 | case UE_INTERRUPT: |
| 810 | xfer = usbd_alloc_xfer(sc->sc_udev); |
| 811 | if (xfer == 0) { |
| 812 | error = EIO; |
| 813 | goto done; |
| 814 | } |
| 815 | while ((n = min(UGETW(sce->edesc->wMaxPacketSize), |
| 816 | uio->uio_resid)) != 0) { |
| 817 | error = uiomove(buf, n, uio); |
| 818 | if (error) |
| 819 | break; |
| 820 | DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); |
| 821 | err = usbd_intr_transfer(xfer, sce->pipeh, 0, |
| 822 | sce->timeout, buf, &n,"ugenwi"); |
| 823 | if (err) { |
| 824 | if (err == USBD_INTERRUPTED) |
| 825 | error = EINTR; |
| 826 | else if (err == USBD_TIMEOUT) |
| 827 | error = ETIMEDOUT; |
| 828 | else |
| 829 | error = EIO; |
| 830 | break; |
| 831 | } |
| 832 | } |
| 833 | usbd_free_xfer(xfer); |
| 834 | break; |
| 835 | default: |
| 836 | error = ENXIO; |
| 837 | break; |
| 838 | } |
| 839 | done: |
| 840 | relugenbuf(buf, ugen_bbsize); |
| 841 | return (error); |
| 842 | } |
| 843 | |
| 844 | int |
| 845 | ugenwrite(struct dev_write_args *ap) |
| 846 | { |
| 847 | cdev_t dev = ap->a_head.a_dev; |
| 848 | int endpt = UGENENDPOINT(dev); |
| 849 | struct ugen_softc *sc; |
| 850 | int error; |
| 851 | |
| 852 | USB_GET_SC(ugen, UGENUNIT(dev), sc); |
| 853 | |
| 854 | sc->sc_refcnt++; |
| 855 | error = ugen_do_write(sc, endpt, ap->a_uio, ap->a_ioflag); |
| 856 | if (--sc->sc_refcnt < 0) |
| 857 | usb_detach_wakeup(sc->sc_dev); |
| 858 | return (error); |
| 859 | } |
| 860 | |
| 861 | USB_DETACH(ugen) |
| 862 | { |
| 863 | USB_DETACH_START(ugen, sc); |
| 864 | struct ugen_endpoint *sce; |
| 865 | int i, dir; |
| 866 | |
| 867 | DPRINTF(("ugen_detach: sc=%p\n", sc)); |
| 868 | |
| 869 | sc->sc_dying = 1; |
| 870 | /* Abort all pipes. Causes processes waiting for transfer to wake. */ |
| 871 | for (i = 0; i < USB_MAX_ENDPOINTS; i++) { |
| 872 | for (dir = OUT; dir <= IN; dir++) { |
| 873 | sce = &sc->sc_endpoints[i][dir]; |
| 874 | if (sce && sce->pipeh) |
| 875 | usbd_abort_pipe(sce->pipeh); |
| 876 | } |
| 877 | } |
| 878 | crit_enter(); |
| 879 | if (--sc->sc_refcnt >= 0) { |
| 880 | /* Wake everyone */ |
| 881 | for (i = 0; i < USB_MAX_ENDPOINTS; i++) |
| 882 | wakeup(&sc->sc_endpoints[i][IN]); |
| 883 | /* Wait for processes to go away. */ |
| 884 | usb_detach_wait(sc->sc_dev); |
| 885 | } |
| 886 | crit_exit(); |
| 887 | |
| 888 | /* destroy the device for the control endpoint */ |
| 889 | ugen_destroy_devnodes(sc); |
| 890 | dev_ops_remove(&ugen_ops, |
| 891 | UGENUNITMASK, UGENMINOR(USBDEVUNIT(sc->sc_dev), 0)); |
| 892 | return (0); |
| 893 | } |
| 894 | |
| 895 | Static void |
| 896 | ugenintr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status) |
| 897 | { |
| 898 | struct ugen_endpoint *sce = addr; |
| 899 | /*struct ugen_softc *sc = sce->sc;*/ |
| 900 | u_int32_t count; |
| 901 | u_char *ibuf; |
| 902 | |
| 903 | if (status == USBD_CANCELLED) |
| 904 | return; |
| 905 | |
| 906 | if (status != USBD_NORMAL_COMPLETION) { |
| 907 | DPRINTF(("ugenintr: status=%d\n", status)); |
| 908 | if (status == USBD_STALLED) |
| 909 | usbd_clear_endpoint_stall_async(sce->pipeh); |
| 910 | return; |
| 911 | } |
| 912 | |
| 913 | usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); |
| 914 | ibuf = sce->ibuf; |
| 915 | |
| 916 | DPRINTFN(5, ("ugenintr: xfer=%p status=%d count=%d\n", |
| 917 | xfer, status, count)); |
| 918 | DPRINTFN(5, (" data = %02x %02x %02x\n", |
| 919 | ibuf[0], ibuf[1], ibuf[2])); |
| 920 | |
| 921 | (void)b_to_q(ibuf, count, &sce->q); |
| 922 | |
| 923 | if (sce->state & UGEN_ASLP) { |
| 924 | sce->state &= ~UGEN_ASLP; |
| 925 | DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); |
| 926 | wakeup(sce); |
| 927 | } |
| 928 | selwakeuppri(&sce->rsel, 0); |
| 929 | } |
| 930 | |
| 931 | Static void |
| 932 | ugen_isoc_rintr(usbd_xfer_handle xfer, usbd_private_handle addr, |
| 933 | usbd_status status) |
| 934 | { |
| 935 | struct isoreq *req = addr; |
| 936 | struct ugen_endpoint *sce = req->sce; |
| 937 | u_int32_t count, n; |
| 938 | int i, isize; |
| 939 | |
| 940 | /* Return if we are aborting. */ |
| 941 | if (status == USBD_CANCELLED) |
| 942 | return; |
| 943 | |
| 944 | usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); |
| 945 | DPRINTFN(5,("ugen_isoc_rintr: xfer %d, count=%d\n", |
| 946 | (int)(req - sce->isoreqs), |
| 947 | count)); |
| 948 | |
| 949 | /* throw away oldest input if the buffer is full */ |
| 950 | if(sce->fill < sce->cur && sce->cur <= sce->fill + count) { |
| 951 | sce->cur += count; |
| 952 | if(sce->cur >= sce->limit) |
| 953 | sce->cur = sce->ibuf + (sce->limit - sce->cur); |
| 954 | DPRINTFN(5, ("ugen_isoc_rintr: throwing away %d bytes\n", |
| 955 | count)); |
| 956 | } |
| 957 | |
| 958 | isize = UGETW(sce->edesc->wMaxPacketSize); |
| 959 | for (i = 0; i < UGEN_NISORFRMS; i++) { |
| 960 | u_int32_t actlen = req->sizes[i]; |
| 961 | char const *buf = (char const *)req->dmabuf + isize * i; |
| 962 | |
| 963 | /* copy data to buffer */ |
| 964 | while (actlen > 0) { |
| 965 | n = min(actlen, sce->limit - sce->fill); |
| 966 | memcpy(sce->fill, buf, n); |
| 967 | |
| 968 | buf += n; |
| 969 | actlen -= n; |
| 970 | sce->fill += n; |
| 971 | if(sce->fill == sce->limit) |
| 972 | sce->fill = sce->ibuf; |
| 973 | } |
| 974 | |
| 975 | /* setup size for next transfer */ |
| 976 | req->sizes[i] = isize; |
| 977 | } |
| 978 | |
| 979 | usbd_setup_isoc_xfer(xfer, sce->pipeh, req, req->sizes, UGEN_NISORFRMS, |
| 980 | USBD_NO_COPY, ugen_isoc_rintr); |
| 981 | (void)usbd_transfer(xfer); |
| 982 | |
| 983 | if (sce->state & UGEN_ASLP) { |
| 984 | sce->state &= ~UGEN_ASLP; |
| 985 | DPRINTFN(5, ("ugen_isoc_rintr: waking %p\n", sce)); |
| 986 | wakeup(sce); |
| 987 | } |
| 988 | selwakeuppri(&sce->rsel, 0); |
| 989 | } |
| 990 | |
| 991 | Static usbd_status |
| 992 | ugen_set_interface(struct ugen_softc *sc, int ifaceidx, int altno) |
| 993 | { |
| 994 | usbd_interface_handle iface; |
| 995 | usb_endpoint_descriptor_t *ed; |
| 996 | usbd_status err; |
| 997 | struct ugen_endpoint *sce; |
| 998 | u_int8_t niface, nendpt, endptno, endpt; |
| 999 | int dir; |
| 1000 | |
| 1001 | DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); |
| 1002 | |
| 1003 | err = usbd_interface_count(sc->sc_udev, &niface); |
| 1004 | if (err) |
| 1005 | return (err); |
| 1006 | if (ifaceidx < 0 || ifaceidx >= niface) |
| 1007 | return (USBD_INVAL); |
| 1008 | |
| 1009 | err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); |
| 1010 | if (err) |
| 1011 | return (err); |
| 1012 | err = usbd_endpoint_count(iface, &nendpt); |
| 1013 | if (err) |
| 1014 | return (err); |
| 1015 | |
| 1016 | /* destroy the existing devices, we remake the new ones in a moment */ |
| 1017 | ugen_destroy_devnodes(sc); |
| 1018 | |
| 1019 | /* XXX should only do this after setting new altno has succeeded */ |
| 1020 | for (endptno = 0; endptno < nendpt; endptno++) { |
| 1021 | ed = usbd_interface2endpoint_descriptor(iface,endptno); |
| 1022 | endpt = ed->bEndpointAddress; |
| 1023 | dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; |
| 1024 | sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; |
| 1025 | sce->sc = 0; |
| 1026 | sce->edesc = 0; |
| 1027 | sce->iface = 0; |
| 1028 | } |
| 1029 | |
| 1030 | /* change setting */ |
| 1031 | err = usbd_set_interface(iface, altno); |
| 1032 | if (err) |
| 1033 | return (err); |
| 1034 | |
| 1035 | err = usbd_endpoint_count(iface, &nendpt); |
| 1036 | if (err) |
| 1037 | return (err); |
| 1038 | for (endptno = 0; endptno < nendpt; endptno++) { |
| 1039 | ed = usbd_interface2endpoint_descriptor(iface,endptno); |
| 1040 | endpt = ed->bEndpointAddress; |
| 1041 | dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; |
| 1042 | sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; |
| 1043 | sce->sc = sc; |
| 1044 | sce->edesc = ed; |
| 1045 | sce->iface = iface; |
| 1046 | } |
| 1047 | |
| 1048 | /* make the new devices */ |
| 1049 | ugen_make_devnodes(sc); |
| 1050 | |
| 1051 | return (0); |
| 1052 | } |
| 1053 | |
| 1054 | /* Retrieve a complete descriptor for a certain device and index. */ |
| 1055 | Static usb_config_descriptor_t * |
| 1056 | ugen_get_cdesc(struct ugen_softc *sc, int index, int *lenp) |
| 1057 | { |
| 1058 | usb_config_descriptor_t *cdesc, *tdesc, cdescr; |
| 1059 | int len; |
| 1060 | usbd_status err; |
| 1061 | |
| 1062 | if (index == USB_CURRENT_CONFIG_INDEX) { |
| 1063 | tdesc = usbd_get_config_descriptor(sc->sc_udev); |
| 1064 | len = UGETW(tdesc->wTotalLength); |
| 1065 | if (lenp) |
| 1066 | *lenp = len; |
| 1067 | cdesc = kmalloc(len, M_TEMP, M_INTWAIT); |
| 1068 | memcpy(cdesc, tdesc, len); |
| 1069 | DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); |
| 1070 | } else { |
| 1071 | err = usbd_get_config_desc(sc->sc_udev, index, &cdescr); |
| 1072 | if (err) |
| 1073 | return (0); |
| 1074 | len = UGETW(cdescr.wTotalLength); |
| 1075 | DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); |
| 1076 | if (lenp) |
| 1077 | *lenp = len; |
| 1078 | cdesc = kmalloc(len, M_TEMP, M_INTWAIT); |
| 1079 | err = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len); |
| 1080 | if (err) { |
| 1081 | kfree(cdesc, M_TEMP); |
| 1082 | return (0); |
| 1083 | } |
| 1084 | } |
| 1085 | return (cdesc); |
| 1086 | } |
| 1087 | |
| 1088 | Static int |
| 1089 | ugen_get_alt_index(struct ugen_softc *sc, int ifaceidx) |
| 1090 | { |
| 1091 | usbd_interface_handle iface; |
| 1092 | usbd_status err; |
| 1093 | |
| 1094 | err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); |
| 1095 | if (err) |
| 1096 | return (-1); |
| 1097 | return (usbd_get_interface_altindex(iface)); |
| 1098 | } |
| 1099 | |
| 1100 | Static int |
| 1101 | ugen_do_ioctl(struct ugen_softc *sc, int endpt, u_long cmd, |
| 1102 | caddr_t addr, int flag) |
| 1103 | { |
| 1104 | struct ugen_endpoint *sce; |
| 1105 | usbd_status err; |
| 1106 | usbd_interface_handle iface; |
| 1107 | struct usb_config_desc *cd; |
| 1108 | usb_config_descriptor_t *cdesc; |
| 1109 | struct usb_interface_desc *id; |
| 1110 | usb_interface_descriptor_t *idesc; |
| 1111 | struct usb_endpoint_desc *ed; |
| 1112 | usb_endpoint_descriptor_t *edesc; |
| 1113 | struct usb_alt_interface *ai; |
| 1114 | struct usb_string_desc *si; |
| 1115 | u_int8_t conf, alt; |
| 1116 | |
| 1117 | DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); |
| 1118 | if (sc->sc_dying) |
| 1119 | return (EIO); |
| 1120 | |
| 1121 | switch (cmd) { |
| 1122 | case USB_SET_SHORT_XFER: |
| 1123 | /* This flag only affects read */ |
| 1124 | if (endpt == USB_CONTROL_ENDPOINT) |
| 1125 | return (EINVAL); |
| 1126 | sce = &sc->sc_endpoints[endpt][IN]; |
| 1127 | if (sce == NULL) |
| 1128 | return (EINVAL); |
| 1129 | |
| 1130 | if (sce->pipeh == NULL) { |
| 1131 | kprintf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n"); |
| 1132 | return (EIO); |
| 1133 | } |
| 1134 | |
| 1135 | if (*(int *)addr) |
| 1136 | sce->state |= UGEN_SHORT_OK; |
| 1137 | else |
| 1138 | sce->state &= ~UGEN_SHORT_OK; |
| 1139 | return (0); |
| 1140 | case USB_SET_TIMEOUT: |
| 1141 | sce = &sc->sc_endpoints[endpt][IN]; |
| 1142 | if (sce == NULL) |
| 1143 | return (EINVAL); |
| 1144 | sce->timeout = *(int *)addr; |
| 1145 | return (0); |
| 1146 | default: |
| 1147 | break; |
| 1148 | } |
| 1149 | |
| 1150 | if (endpt != USB_CONTROL_ENDPOINT) |
| 1151 | return (EINVAL); |
| 1152 | |
| 1153 | switch (cmd) { |
| 1154 | #ifdef USB_DEBUG |
| 1155 | case USB_SETDEBUG: |
| 1156 | ugendebug = *(int *)addr; |
| 1157 | break; |
| 1158 | #endif |
| 1159 | case USB_GET_CONFIG: |
| 1160 | err = usbd_get_config(sc->sc_udev, &conf); |
| 1161 | if (err) |
| 1162 | return (EIO); |
| 1163 | *(int *)addr = conf; |
| 1164 | break; |
| 1165 | case USB_SET_CONFIG: |
| 1166 | if (!(flag & FWRITE)) |
| 1167 | return (EPERM); |
| 1168 | err = ugen_set_config(sc, *(int *)addr); |
| 1169 | switch (err) { |
| 1170 | case USBD_NORMAL_COMPLETION: |
| 1171 | break; |
| 1172 | case USBD_IN_USE: |
| 1173 | return (EBUSY); |
| 1174 | default: |
| 1175 | return (EIO); |
| 1176 | } |
| 1177 | break; |
| 1178 | case USB_GET_ALTINTERFACE: |
| 1179 | ai = (struct usb_alt_interface *)addr; |
| 1180 | err = usbd_device2interface_handle(sc->sc_udev, |
| 1181 | ai->uai_interface_index, &iface); |
| 1182 | if (err) |
| 1183 | return (EINVAL); |
| 1184 | idesc = usbd_get_interface_descriptor(iface); |
| 1185 | if (idesc == NULL) |
| 1186 | return (EIO); |
| 1187 | ai->uai_alt_no = idesc->bAlternateSetting; |
| 1188 | break; |
| 1189 | case USB_SET_ALTINTERFACE: |
| 1190 | if (!(flag & FWRITE)) |
| 1191 | return (EPERM); |
| 1192 | ai = (struct usb_alt_interface *)addr; |
| 1193 | err = usbd_device2interface_handle(sc->sc_udev, |
| 1194 | ai->uai_interface_index, &iface); |
| 1195 | if (err) |
| 1196 | return (EINVAL); |
| 1197 | err = ugen_set_interface(sc, ai->uai_interface_index, ai->uai_alt_no); |
| 1198 | if (err) |
| 1199 | return (EINVAL); |
| 1200 | break; |
| 1201 | case USB_GET_NO_ALT: |
| 1202 | ai = (struct usb_alt_interface *)addr; |
| 1203 | cdesc = ugen_get_cdesc(sc, ai->uai_config_index, 0); |
| 1204 | if (cdesc == NULL) |
| 1205 | return (EINVAL); |
| 1206 | idesc = usbd_find_idesc(cdesc, ai->uai_interface_index, 0); |
| 1207 | if (idesc == NULL) { |
| 1208 | kfree(cdesc, M_TEMP); |
| 1209 | return (EINVAL); |
| 1210 | } |
| 1211 | ai->uai_alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); |
| 1212 | kfree(cdesc, M_TEMP); |
| 1213 | break; |
| 1214 | case USB_GET_DEVICE_DESC: |
| 1215 | *(usb_device_descriptor_t *)addr = |
| 1216 | *usbd_get_device_descriptor(sc->sc_udev); |
| 1217 | break; |
| 1218 | case USB_GET_CONFIG_DESC: |
| 1219 | cd = (struct usb_config_desc *)addr; |
| 1220 | cdesc = ugen_get_cdesc(sc, cd->ucd_config_index, 0); |
| 1221 | if (cdesc == NULL) |
| 1222 | return (EINVAL); |
| 1223 | cd->ucd_desc = *cdesc; |
| 1224 | kfree(cdesc, M_TEMP); |
| 1225 | break; |
| 1226 | case USB_GET_INTERFACE_DESC: |
| 1227 | id = (struct usb_interface_desc *)addr; |
| 1228 | cdesc = ugen_get_cdesc(sc, id->uid_config_index, 0); |
| 1229 | if (cdesc == NULL) |
| 1230 | return (EINVAL); |
| 1231 | if (id->uid_config_index == USB_CURRENT_CONFIG_INDEX && |
| 1232 | id->uid_alt_index == USB_CURRENT_ALT_INDEX) |
| 1233 | alt = ugen_get_alt_index(sc, id->uid_interface_index); |
| 1234 | else |
| 1235 | alt = id->uid_alt_index; |
| 1236 | idesc = usbd_find_idesc(cdesc, id->uid_interface_index, alt); |
| 1237 | if (idesc == NULL) { |
| 1238 | kfree(cdesc, M_TEMP); |
| 1239 | return (EINVAL); |
| 1240 | } |
| 1241 | id->uid_desc = *idesc; |
| 1242 | kfree(cdesc, M_TEMP); |
| 1243 | break; |
| 1244 | case USB_GET_ENDPOINT_DESC: |
| 1245 | ed = (struct usb_endpoint_desc *)addr; |
| 1246 | cdesc = ugen_get_cdesc(sc, ed->ued_config_index, 0); |
| 1247 | if (cdesc == NULL) |
| 1248 | return (EINVAL); |
| 1249 | if (ed->ued_config_index == USB_CURRENT_CONFIG_INDEX && |
| 1250 | ed->ued_alt_index == USB_CURRENT_ALT_INDEX) |
| 1251 | alt = ugen_get_alt_index(sc, ed->ued_interface_index); |
| 1252 | else |
| 1253 | alt = ed->ued_alt_index; |
| 1254 | edesc = usbd_find_edesc(cdesc, ed->ued_interface_index, |
| 1255 | alt, ed->ued_endpoint_index); |
| 1256 | if (edesc == NULL) { |
| 1257 | kfree(cdesc, M_TEMP); |
| 1258 | return (EINVAL); |
| 1259 | } |
| 1260 | ed->ued_desc = *edesc; |
| 1261 | kfree(cdesc, M_TEMP); |
| 1262 | break; |
| 1263 | case USB_GET_FULL_DESC: |
| 1264 | { |
| 1265 | int len; |
| 1266 | struct iovec iov; |
| 1267 | struct uio uio; |
| 1268 | struct usb_full_desc *fd = (struct usb_full_desc *)addr; |
| 1269 | int error; |
| 1270 | |
| 1271 | cdesc = ugen_get_cdesc(sc, fd->ufd_config_index, &len); |
| 1272 | if (len > fd->ufd_size) |
| 1273 | len = fd->ufd_size; |
| 1274 | iov.iov_base = (caddr_t)fd->ufd_data; |
| 1275 | iov.iov_len = len; |
| 1276 | uio.uio_iov = &iov; |
| 1277 | uio.uio_iovcnt = 1; |
| 1278 | uio.uio_resid = len; |
| 1279 | uio.uio_offset = 0; |
| 1280 | uio.uio_segflg = UIO_USERSPACE; |
| 1281 | uio.uio_rw = UIO_READ; |
| 1282 | uio.uio_procp = curthread; |
| 1283 | error = uiomove((void *)cdesc, len, &uio); |
| 1284 | kfree(cdesc, M_TEMP); |
| 1285 | return (error); |
| 1286 | } |
| 1287 | case USB_GET_STRING_DESC: |
| 1288 | { |
| 1289 | int size; |
| 1290 | |
| 1291 | si = (struct usb_string_desc *)addr; |
| 1292 | err = usbd_get_string_desc(sc->sc_udev, si->usd_string_index, |
| 1293 | si->usd_language_id, &si->usd_desc, &size); |
| 1294 | if (err) |
| 1295 | return (EINVAL); |
| 1296 | break; |
| 1297 | } |
| 1298 | case USB_DO_REQUEST: |
| 1299 | { |
| 1300 | struct usb_ctl_request *ur = (void *)addr; |
| 1301 | int len = UGETW(ur->ucr_request.wLength); |
| 1302 | struct iovec iov; |
| 1303 | struct uio uio; |
| 1304 | void *ptr = 0; |
| 1305 | usbd_status err; |
| 1306 | int error = 0; |
| 1307 | |
| 1308 | if (!(flag & FWRITE)) |
| 1309 | return (EPERM); |
| 1310 | /* Avoid requests that would damage the bus integrity. */ |
| 1311 | if ((ur->ucr_request.bmRequestType == UT_WRITE_DEVICE && |
| 1312 | ur->ucr_request.bRequest == UR_SET_ADDRESS) || |
| 1313 | (ur->ucr_request.bmRequestType == UT_WRITE_DEVICE && |
| 1314 | ur->ucr_request.bRequest == UR_SET_CONFIG) || |
| 1315 | (ur->ucr_request.bmRequestType == UT_WRITE_INTERFACE && |
| 1316 | ur->ucr_request.bRequest == UR_SET_INTERFACE)) |
| 1317 | return (EINVAL); |
| 1318 | |
| 1319 | if (len < 0 || len > 32767) |
| 1320 | return (EINVAL); |
| 1321 | if (len != 0) { |
| 1322 | iov.iov_base = (caddr_t)ur->ucr_data; |
| 1323 | iov.iov_len = len; |
| 1324 | uio.uio_iov = &iov; |
| 1325 | uio.uio_iovcnt = 1; |
| 1326 | uio.uio_resid = len; |
| 1327 | uio.uio_offset = 0; |
| 1328 | uio.uio_segflg = UIO_USERSPACE; |
| 1329 | uio.uio_rw = |
| 1330 | ur->ucr_request.bmRequestType & UT_READ ? |
| 1331 | UIO_READ : UIO_WRITE; |
| 1332 | uio.uio_td = curthread; |
| 1333 | ptr = kmalloc(len, M_TEMP, M_WAITOK); |
| 1334 | if (uio.uio_rw == UIO_WRITE) { |
| 1335 | error = uiomove(ptr, len, &uio); |
| 1336 | if (error) |
| 1337 | goto ret; |
| 1338 | } |
| 1339 | } |
| 1340 | sce = &sc->sc_endpoints[endpt][IN]; |
| 1341 | err = usbd_do_request_flags(sc->sc_udev, &ur->ucr_request, |
| 1342 | ptr, ur->ucr_flags, &ur->ucr_actlen, sce->timeout); |
| 1343 | if (err) { |
| 1344 | error = EIO; |
| 1345 | goto ret; |
| 1346 | } |
| 1347 | if (len != 0) { |
| 1348 | if (uio.uio_rw == UIO_READ) { |
| 1349 | error = uiomove(ptr, len, &uio); |
| 1350 | if (error) |
| 1351 | goto ret; |
| 1352 | } |
| 1353 | } |
| 1354 | ret: |
| 1355 | if (ptr) |
| 1356 | kfree(ptr, M_TEMP); |
| 1357 | return (error); |
| 1358 | } |
| 1359 | case USB_GET_DEVICEINFO: |
| 1360 | usbd_fill_deviceinfo(sc->sc_udev, |
| 1361 | (struct usb_device_info *)addr, 1); |
| 1362 | break; |
| 1363 | default: |
| 1364 | return (EINVAL); |
| 1365 | } |
| 1366 | return (0); |
| 1367 | } |
| 1368 | |
| 1369 | int |
| 1370 | ugenioctl(struct dev_ioctl_args *ap) |
| 1371 | { |
| 1372 | cdev_t dev = ap->a_head.a_dev; |
| 1373 | int endpt = UGENENDPOINT(dev); |
| 1374 | struct ugen_softc *sc; |
| 1375 | int error; |
| 1376 | |
| 1377 | USB_GET_SC(ugen, UGENUNIT(dev), sc); |
| 1378 | |
| 1379 | sc->sc_refcnt++; |
| 1380 | error = ugen_do_ioctl(sc, endpt, ap->a_cmd, ap->a_data, ap->a_fflag); |
| 1381 | if (--sc->sc_refcnt < 0) |
| 1382 | usb_detach_wakeup(sc->sc_dev); |
| 1383 | return (error); |
| 1384 | } |
| 1385 | |
| 1386 | int |
| 1387 | ugenpoll(struct dev_poll_args *ap) |
| 1388 | { |
| 1389 | cdev_t dev = ap->a_head.a_dev; |
| 1390 | struct ugen_softc *sc; |
| 1391 | struct ugen_endpoint *sce; |
| 1392 | int revents = 0; |
| 1393 | |
| 1394 | USB_GET_SC(ugen, UGENUNIT(dev), sc); |
| 1395 | |
| 1396 | if (sc->sc_dying) |
| 1397 | return (EIO); |
| 1398 | |
| 1399 | /* XXX always IN */ |
| 1400 | sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; |
| 1401 | if (sce == NULL) |
| 1402 | return (EINVAL); |
| 1403 | |
| 1404 | if (!sce->edesc) { |
| 1405 | kprintf("ugenpoll: no edesc\n"); |
| 1406 | return (EIO); |
| 1407 | } |
| 1408 | if (!sce->pipeh) { |
| 1409 | kprintf("ugenpoll: no pipe\n"); |
| 1410 | return (EIO); |
| 1411 | } |
| 1412 | |
| 1413 | crit_enter(); |
| 1414 | switch (sce->edesc->bmAttributes & UE_XFERTYPE) { |
| 1415 | case UE_INTERRUPT: |
| 1416 | if (ap->a_events & (POLLIN | POLLRDNORM)) { |
| 1417 | if (sce->q.c_cc > 0) |
| 1418 | revents |= ap->a_events & (POLLIN | POLLRDNORM); |
| 1419 | else |
| 1420 | selrecord(curthread, &sce->rsel); |
| 1421 | } |
| 1422 | break; |
| 1423 | case UE_ISOCHRONOUS: |
| 1424 | if (ap->a_events & (POLLIN | POLLRDNORM)) { |
| 1425 | if (sce->cur != sce->fill) |
| 1426 | revents |= ap->a_events & (POLLIN | POLLRDNORM); |
| 1427 | else |
| 1428 | selrecord(curthread, &sce->rsel); |
| 1429 | } |
| 1430 | break; |
| 1431 | case UE_BULK: |
| 1432 | /* |
| 1433 | * We have no easy way of determining if a read will |
| 1434 | * yield any data or a write will happen. |
| 1435 | * Pretend they will. |
| 1436 | */ |
| 1437 | revents |= ap->a_events & |
| 1438 | (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); |
| 1439 | break; |
| 1440 | default: |
| 1441 | break; |
| 1442 | } |
| 1443 | crit_exit(); |
| 1444 | ap->a_events = revents; |
| 1445 | return (0); |
| 1446 | } |
| 1447 | |
| 1448 | DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, usbd_driver_load, 0); |
| 1449 | |