| 1 | /* $NetBSD: if_upl.c,v 1.56 2016/07/07 06:55:42 msaitoh Exp $ */ |
| 2 | /* |
| 3 | * Copyright (c) 2000 The NetBSD Foundation, Inc. |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * This code is derived from software contributed to The NetBSD Foundation |
| 7 | * by Lennart Augustsson (lennart@augustsson.net) at |
| 8 | * Carlstedt Research & Technology. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | /* |
| 33 | * Prolific PL2301/PL2302 driver |
| 34 | */ |
| 35 | |
| 36 | #include <sys/cdefs.h> |
| 37 | __KERNEL_RCSID(0, "$NetBSD: if_upl.c,v 1.56 2016/07/07 06:55:42 msaitoh Exp $" ); |
| 38 | |
| 39 | #ifdef _KERNEL_OPT |
| 40 | #include "opt_inet.h" |
| 41 | #endif |
| 42 | |
| 43 | #include <sys/param.h> |
| 44 | #include <sys/systm.h> |
| 45 | #include <sys/callout.h> |
| 46 | #include <sys/sockio.h> |
| 47 | #include <sys/mbuf.h> |
| 48 | #include <sys/kernel.h> |
| 49 | #include <sys/socket.h> |
| 50 | |
| 51 | #include <sys/device.h> |
| 52 | #include <sys/rndsource.h> |
| 53 | |
| 54 | #include <net/if.h> |
| 55 | #include <net/if_types.h> |
| 56 | #include <net/if_dl.h> |
| 57 | #include <net/netisr.h> |
| 58 | |
| 59 | #include <net/bpf.h> |
| 60 | |
| 61 | #ifdef INET |
| 62 | #include <netinet/in.h> |
| 63 | #include <netinet/in_var.h> |
| 64 | #include <netinet/if_inarp.h> |
| 65 | #endif |
| 66 | |
| 67 | |
| 68 | #include <dev/usb/usb.h> |
| 69 | #include <dev/usb/usbdi.h> |
| 70 | #include <dev/usb/usbdi_util.h> |
| 71 | #include <dev/usb/usbdevs.h> |
| 72 | |
| 73 | /* |
| 74 | * 7 6 5 4 3 2 1 0 |
| 75 | * tx rx 1 0 |
| 76 | * 1110 0000 rxdata |
| 77 | * 1010 0000 idle |
| 78 | * 0010 0000 tx over |
| 79 | * 0110 tx over + rxd |
| 80 | */ |
| 81 | |
| 82 | #define UPL_RXDATA 0x40 |
| 83 | #define UPL_TXOK 0x80 |
| 84 | |
| 85 | #define UPL_INTR_PKTLEN 1 |
| 86 | |
| 87 | #define UPL_CONFIG_NO 1 |
| 88 | #define UPL_IFACE_IDX 0 |
| 89 | |
| 90 | /***/ |
| 91 | |
| 92 | #define UPL_INTR_INTERVAL 20 |
| 93 | |
| 94 | #define UPL_BUFSZ 1024 |
| 95 | |
| 96 | #define UPL_RX_FRAMES 1 |
| 97 | #define UPL_TX_FRAMES 1 |
| 98 | |
| 99 | #define UPL_RX_LIST_CNT 1 |
| 100 | #define UPL_TX_LIST_CNT 1 |
| 101 | |
| 102 | #define UPL_ENDPT_RX 0x0 |
| 103 | #define UPL_ENDPT_TX 0x1 |
| 104 | #define UPL_ENDPT_INTR 0x2 |
| 105 | #define UPL_ENDPT_MAX 0x3 |
| 106 | |
| 107 | struct upl_type { |
| 108 | uint16_t upl_vid; |
| 109 | uint16_t upl_did; |
| 110 | }; |
| 111 | |
| 112 | struct upl_softc; |
| 113 | |
| 114 | struct upl_chain { |
| 115 | struct upl_softc *upl_sc; |
| 116 | struct usbd_xfer *upl_xfer; |
| 117 | char *upl_buf; |
| 118 | struct mbuf *upl_mbuf; |
| 119 | int upl_idx; |
| 120 | }; |
| 121 | |
| 122 | struct upl_cdata { |
| 123 | struct upl_chain upl_tx_chain[UPL_TX_LIST_CNT]; |
| 124 | struct upl_chain upl_rx_chain[UPL_RX_LIST_CNT]; |
| 125 | int upl_tx_prod; |
| 126 | int upl_tx_cons; |
| 127 | int upl_tx_cnt; |
| 128 | int upl_rx_prod; |
| 129 | }; |
| 130 | |
| 131 | struct upl_softc { |
| 132 | device_t sc_dev; |
| 133 | |
| 134 | struct ifnet sc_if; |
| 135 | krndsource_t sc_rnd_source; |
| 136 | |
| 137 | struct callout sc_stat_ch; |
| 138 | |
| 139 | struct usbd_device * sc_udev; |
| 140 | struct usbd_interface * sc_iface; |
| 141 | uint16_t sc_vendor; |
| 142 | uint16_t sc_product; |
| 143 | int sc_ed[UPL_ENDPT_MAX]; |
| 144 | struct usbd_pipe * sc_ep[UPL_ENDPT_MAX]; |
| 145 | struct upl_cdata sc_cdata; |
| 146 | |
| 147 | uByte sc_ibuf; |
| 148 | |
| 149 | char sc_dying; |
| 150 | char sc_attached; |
| 151 | u_int sc_rx_errs; |
| 152 | struct timeval sc_rx_notice; |
| 153 | u_int sc_intr_errs; |
| 154 | }; |
| 155 | |
| 156 | #ifdef UPL_DEBUG |
| 157 | #define DPRINTF(x) if (upldebug) printf x |
| 158 | #define DPRINTFN(n,x) if (upldebug >= (n)) printf x |
| 159 | int upldebug = 0; |
| 160 | #else |
| 161 | #define DPRINTF(x) |
| 162 | #define DPRINTFN(n,x) |
| 163 | #endif |
| 164 | |
| 165 | /* |
| 166 | * Various supported device vendors/products. |
| 167 | */ |
| 168 | Static struct upl_type sc_devs[] = { |
| 169 | { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2301 }, |
| 170 | { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2302 }, |
| 171 | { 0, 0 } |
| 172 | }; |
| 173 | |
| 174 | int upl_match(device_t, cfdata_t, void *); |
| 175 | void upl_attach(device_t, device_t, void *); |
| 176 | int upl_detach(device_t, int); |
| 177 | int upl_activate(device_t, enum devact); |
| 178 | extern struct cfdriver upl_cd; |
| 179 | CFATTACH_DECL_NEW(upl, sizeof(struct upl_softc), upl_match, upl_attach, |
| 180 | upl_detach, upl_activate); |
| 181 | |
| 182 | Static int upl_openpipes(struct upl_softc *); |
| 183 | Static int upl_tx_list_init(struct upl_softc *); |
| 184 | Static int upl_rx_list_init(struct upl_softc *); |
| 185 | Static int upl_newbuf(struct upl_softc *, struct upl_chain *, struct mbuf *); |
| 186 | Static int upl_send(struct upl_softc *, struct mbuf *, int); |
| 187 | Static void upl_intr(struct usbd_xfer *, void *, usbd_status); |
| 188 | Static void upl_rxeof(struct usbd_xfer *, void *, usbd_status); |
| 189 | Static void upl_txeof(struct usbd_xfer *, void *, usbd_status); |
| 190 | Static void upl_start(struct ifnet *); |
| 191 | Static int upl_ioctl(struct ifnet *, u_long, void *); |
| 192 | Static void upl_init(void *); |
| 193 | Static void upl_stop(struct upl_softc *); |
| 194 | Static void upl_watchdog(struct ifnet *); |
| 195 | |
| 196 | Static int upl_output(struct ifnet *, struct mbuf *, const struct sockaddr *, |
| 197 | const struct rtentry *); |
| 198 | Static void upl_input(struct ifnet *, struct mbuf *); |
| 199 | |
| 200 | /* |
| 201 | * Probe for a Prolific chip. |
| 202 | */ |
| 203 | int |
| 204 | upl_match(device_t parent, cfdata_t match, void *aux) |
| 205 | { |
| 206 | struct usb_attach_arg *uaa = aux; |
| 207 | struct upl_type *t; |
| 208 | |
| 209 | for (t = sc_devs; t->upl_vid != 0; t++) |
| 210 | if (uaa->uaa_vendor == t->upl_vid && uaa->uaa_product == t->upl_did) |
| 211 | return UMATCH_VENDOR_PRODUCT; |
| 212 | |
| 213 | return UMATCH_NONE; |
| 214 | } |
| 215 | |
| 216 | void |
| 217 | upl_attach(device_t parent, device_t self, void *aux) |
| 218 | { |
| 219 | struct upl_softc *sc = device_private(self); |
| 220 | struct usb_attach_arg *uaa = aux; |
| 221 | char *devinfop; |
| 222 | int s; |
| 223 | struct usbd_device * dev = uaa->uaa_device; |
| 224 | struct usbd_interface * iface; |
| 225 | usbd_status err; |
| 226 | struct ifnet *ifp; |
| 227 | usb_interface_descriptor_t *id; |
| 228 | usb_endpoint_descriptor_t *ed; |
| 229 | int i; |
| 230 | |
| 231 | DPRINTFN(5,(" : upl_attach: sc=%p, dev=%p" , sc, dev)); |
| 232 | |
| 233 | sc->sc_dev = self; |
| 234 | |
| 235 | aprint_naive("\n" ); |
| 236 | aprint_normal("\n" ); |
| 237 | |
| 238 | devinfop = usbd_devinfo_alloc(dev, 0); |
| 239 | aprint_normal_dev(self, "%s\n" , devinfop); |
| 240 | usbd_devinfo_free(devinfop); |
| 241 | |
| 242 | err = usbd_set_config_no(dev, UPL_CONFIG_NO, 1); |
| 243 | if (err) { |
| 244 | aprint_error_dev(self, "failed to set configuration" |
| 245 | ", err=%s\n" , usbd_errstr(err)); |
| 246 | return; |
| 247 | } |
| 248 | |
| 249 | sc->sc_udev = dev; |
| 250 | sc->sc_product = uaa->uaa_product; |
| 251 | sc->sc_vendor = uaa->uaa_vendor; |
| 252 | |
| 253 | err = usbd_device2interface_handle(dev, UPL_IFACE_IDX, &iface); |
| 254 | if (err) { |
| 255 | aprint_error_dev(self, "getting interface handle failed\n" ); |
| 256 | return; |
| 257 | } |
| 258 | |
| 259 | sc->sc_iface = iface; |
| 260 | id = usbd_get_interface_descriptor(iface); |
| 261 | |
| 262 | /* Find endpoints. */ |
| 263 | for (i = 0; i < id->bNumEndpoints; i++) { |
| 264 | ed = usbd_interface2endpoint_descriptor(iface, i); |
| 265 | if (ed == NULL) { |
| 266 | aprint_error_dev(self, "couldn't get ep %d\n" , i); |
| 267 | return; |
| 268 | } |
| 269 | if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && |
| 270 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { |
| 271 | sc->sc_ed[UPL_ENDPT_RX] = ed->bEndpointAddress; |
| 272 | } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && |
| 273 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { |
| 274 | sc->sc_ed[UPL_ENDPT_TX] = ed->bEndpointAddress; |
| 275 | } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && |
| 276 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { |
| 277 | sc->sc_ed[UPL_ENDPT_INTR] = ed->bEndpointAddress; |
| 278 | } |
| 279 | } |
| 280 | |
| 281 | if (sc->sc_ed[UPL_ENDPT_RX] == 0 || sc->sc_ed[UPL_ENDPT_TX] == 0 || |
| 282 | sc->sc_ed[UPL_ENDPT_INTR] == 0) { |
| 283 | aprint_error_dev(self, "missing endpoint\n" ); |
| 284 | return; |
| 285 | } |
| 286 | |
| 287 | s = splnet(); |
| 288 | |
| 289 | /* Initialize interface info.*/ |
| 290 | ifp = &sc->sc_if; |
| 291 | ifp->if_softc = sc; |
| 292 | ifp->if_mtu = UPL_BUFSZ; |
| 293 | ifp->if_flags = IFF_POINTOPOINT | IFF_NOARP | IFF_SIMPLEX; |
| 294 | ifp->if_ioctl = upl_ioctl; |
| 295 | ifp->if_start = upl_start; |
| 296 | ifp->if_watchdog = upl_watchdog; |
| 297 | strncpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); |
| 298 | |
| 299 | ifp->if_type = IFT_OTHER; |
| 300 | ifp->if_addrlen = 0; |
| 301 | ifp->if_hdrlen = 0; |
| 302 | ifp->if_output = upl_output; |
| 303 | ifp->_if_input = upl_input; |
| 304 | ifp->if_baudrate = 12000000; |
| 305 | ifp->if_dlt = DLT_RAW; |
| 306 | IFQ_SET_READY(&ifp->if_snd); |
| 307 | |
| 308 | /* Attach the interface. */ |
| 309 | if_initialize(ifp); |
| 310 | if_register(ifp); |
| 311 | if_alloc_sadl(ifp); |
| 312 | |
| 313 | bpf_attach(ifp, DLT_RAW, 0); |
| 314 | rnd_attach_source(&sc->sc_rnd_source, device_xname(sc->sc_dev), |
| 315 | RND_TYPE_NET, RND_FLAG_DEFAULT); |
| 316 | |
| 317 | sc->sc_attached = 1; |
| 318 | splx(s); |
| 319 | |
| 320 | usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); |
| 321 | |
| 322 | return; |
| 323 | } |
| 324 | |
| 325 | int |
| 326 | upl_detach(device_t self, int flags) |
| 327 | { |
| 328 | struct upl_softc *sc = device_private(self); |
| 329 | struct ifnet *ifp = &sc->sc_if; |
| 330 | int s; |
| 331 | |
| 332 | DPRINTFN(2,("%s: %s: enter\n" , device_xname(sc->sc_dev), __func__)); |
| 333 | |
| 334 | s = splusb(); |
| 335 | |
| 336 | if (!sc->sc_attached) { |
| 337 | /* Detached before attached finished, so just bail out. */ |
| 338 | splx(s); |
| 339 | return 0; |
| 340 | } |
| 341 | |
| 342 | if (ifp->if_flags & IFF_RUNNING) |
| 343 | upl_stop(sc); |
| 344 | |
| 345 | rnd_detach_source(&sc->sc_rnd_source); |
| 346 | bpf_detach(ifp); |
| 347 | |
| 348 | if_detach(ifp); |
| 349 | |
| 350 | #ifdef DIAGNOSTIC |
| 351 | if (sc->sc_ep[UPL_ENDPT_TX] != NULL || |
| 352 | sc->sc_ep[UPL_ENDPT_RX] != NULL || |
| 353 | sc->sc_ep[UPL_ENDPT_INTR] != NULL) |
| 354 | aprint_debug_dev(self, "detach has active endpoints\n" ); |
| 355 | #endif |
| 356 | |
| 357 | sc->sc_attached = 0; |
| 358 | splx(s); |
| 359 | |
| 360 | usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); |
| 361 | |
| 362 | return 0; |
| 363 | } |
| 364 | |
| 365 | int |
| 366 | upl_activate(device_t self, enum devact act) |
| 367 | { |
| 368 | struct upl_softc *sc = device_private(self); |
| 369 | |
| 370 | DPRINTFN(2,("%s: %s: enter\n" , device_xname(sc->sc_dev), __func__)); |
| 371 | |
| 372 | switch (act) { |
| 373 | case DVACT_DEACTIVATE: |
| 374 | /* Deactivate the interface. */ |
| 375 | if_deactivate(&sc->sc_if); |
| 376 | sc->sc_dying = 1; |
| 377 | return 0; |
| 378 | default: |
| 379 | return EOPNOTSUPP; |
| 380 | } |
| 381 | } |
| 382 | |
| 383 | /* |
| 384 | * Initialize an RX descriptor and attach an MBUF cluster. |
| 385 | */ |
| 386 | Static int |
| 387 | upl_newbuf(struct upl_softc *sc, struct upl_chain *c, struct mbuf *m) |
| 388 | { |
| 389 | struct mbuf *m_new = NULL; |
| 390 | |
| 391 | DPRINTFN(8,("%s: %s: enter\n" , device_xname(sc->sc_dev), __func__)); |
| 392 | |
| 393 | if (m == NULL) { |
| 394 | MGETHDR(m_new, M_DONTWAIT, MT_DATA); |
| 395 | if (m_new == NULL) { |
| 396 | printf("%s: no memory for rx list " |
| 397 | "-- packet dropped!\n" , device_xname(sc->sc_dev)); |
| 398 | return ENOBUFS; |
| 399 | } |
| 400 | |
| 401 | MCLGET(m_new, M_DONTWAIT); |
| 402 | if (!(m_new->m_flags & M_EXT)) { |
| 403 | printf("%s: no memory for rx list " |
| 404 | "-- packet dropped!\n" , device_xname(sc->sc_dev)); |
| 405 | m_freem(m_new); |
| 406 | return ENOBUFS; |
| 407 | } |
| 408 | m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; |
| 409 | } else { |
| 410 | m_new = m; |
| 411 | m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; |
| 412 | m_new->m_data = m_new->m_ext.ext_buf; |
| 413 | } |
| 414 | |
| 415 | c->upl_mbuf = m_new; |
| 416 | |
| 417 | return 0; |
| 418 | } |
| 419 | |
| 420 | Static int |
| 421 | upl_rx_list_init(struct upl_softc *sc) |
| 422 | { |
| 423 | struct upl_cdata *cd; |
| 424 | struct upl_chain *c; |
| 425 | int i; |
| 426 | |
| 427 | DPRINTFN(5,("%s: %s: enter\n" , device_xname(sc->sc_dev), __func__)); |
| 428 | |
| 429 | cd = &sc->sc_cdata; |
| 430 | for (i = 0; i < UPL_RX_LIST_CNT; i++) { |
| 431 | c = &cd->upl_rx_chain[i]; |
| 432 | c->upl_sc = sc; |
| 433 | c->upl_idx = i; |
| 434 | if (upl_newbuf(sc, c, NULL) == ENOBUFS) |
| 435 | return ENOBUFS; |
| 436 | if (c->upl_xfer == NULL) { |
| 437 | int error = usbd_create_xfer(sc->sc_ep[UPL_ENDPT_RX], |
| 438 | UPL_BUFSZ, USBD_SHORT_XFER_OK, 0, &c->upl_xfer); |
| 439 | if (error) |
| 440 | return error; |
| 441 | c->upl_buf = usbd_get_buffer(c->upl_xfer); |
| 442 | } |
| 443 | } |
| 444 | |
| 445 | return 0; |
| 446 | } |
| 447 | |
| 448 | Static int |
| 449 | upl_tx_list_init(struct upl_softc *sc) |
| 450 | { |
| 451 | struct upl_cdata *cd; |
| 452 | struct upl_chain *c; |
| 453 | int i; |
| 454 | |
| 455 | DPRINTFN(5,("%s: %s: enter\n" , device_xname(sc->sc_dev), __func__)); |
| 456 | |
| 457 | cd = &sc->sc_cdata; |
| 458 | for (i = 0; i < UPL_TX_LIST_CNT; i++) { |
| 459 | c = &cd->upl_tx_chain[i]; |
| 460 | c->upl_sc = sc; |
| 461 | c->upl_idx = i; |
| 462 | c->upl_mbuf = NULL; |
| 463 | if (c->upl_xfer == NULL) { |
| 464 | int error = usbd_create_xfer(sc->sc_ep[UPL_ENDPT_TX], |
| 465 | UPL_BUFSZ, 0, 0, &c->upl_xfer); |
| 466 | if (error) |
| 467 | return error; |
| 468 | c->upl_buf = usbd_get_buffer(c->upl_xfer); |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | return 0; |
| 473 | } |
| 474 | |
| 475 | /* |
| 476 | * A frame has been uploaded: pass the resulting mbuf chain up to |
| 477 | * the higher level protocols. |
| 478 | */ |
| 479 | Static void |
| 480 | upl_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) |
| 481 | { |
| 482 | struct upl_chain *c = priv; |
| 483 | struct upl_softc *sc = c->upl_sc; |
| 484 | struct ifnet *ifp = &sc->sc_if; |
| 485 | struct mbuf *m; |
| 486 | int total_len = 0; |
| 487 | int s; |
| 488 | |
| 489 | if (sc->sc_dying) |
| 490 | return; |
| 491 | |
| 492 | if (!(ifp->if_flags & IFF_RUNNING)) |
| 493 | return; |
| 494 | |
| 495 | if (status != USBD_NORMAL_COMPLETION) { |
| 496 | if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) |
| 497 | return; |
| 498 | sc->sc_rx_errs++; |
| 499 | if (usbd_ratecheck(&sc->sc_rx_notice)) { |
| 500 | printf("%s: %u usb errors on rx: %s\n" , |
| 501 | device_xname(sc->sc_dev), sc->sc_rx_errs, |
| 502 | usbd_errstr(status)); |
| 503 | sc->sc_rx_errs = 0; |
| 504 | } |
| 505 | if (status == USBD_STALLED) |
| 506 | usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_RX]); |
| 507 | goto done; |
| 508 | } |
| 509 | |
| 510 | usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); |
| 511 | |
| 512 | DPRINTFN(9,("%s: %s: enter status=%d length=%d\n" , |
| 513 | device_xname(sc->sc_dev), __func__, status, total_len)); |
| 514 | |
| 515 | m = c->upl_mbuf; |
| 516 | memcpy(mtod(c->upl_mbuf, char *), c->upl_buf, total_len); |
| 517 | |
| 518 | ifp->if_ipackets++; |
| 519 | m->m_pkthdr.len = m->m_len = total_len; |
| 520 | |
| 521 | m_set_rcvif(m, ifp); |
| 522 | |
| 523 | s = splnet(); |
| 524 | |
| 525 | /* XXX ugly */ |
| 526 | if (upl_newbuf(sc, c, NULL) == ENOBUFS) { |
| 527 | ifp->if_ierrors++; |
| 528 | goto done1; |
| 529 | } |
| 530 | |
| 531 | /* |
| 532 | * Handle BPF listeners. Let the BPF user see the packet, but |
| 533 | * don't pass it up to the ether_input() layer unless it's |
| 534 | * a broadcast packet, multicast packet, matches our ethernet |
| 535 | * address or the interface is in promiscuous mode. |
| 536 | */ |
| 537 | bpf_mtap(ifp, m); |
| 538 | |
| 539 | DPRINTFN(10,("%s: %s: deliver %d\n" , device_xname(sc->sc_dev), |
| 540 | __func__, m->m_len)); |
| 541 | |
| 542 | if_input((ifp), (m)); |
| 543 | |
| 544 | done1: |
| 545 | splx(s); |
| 546 | |
| 547 | done: |
| 548 | #if 1 |
| 549 | /* Setup new transfer. */ |
| 550 | usbd_setup_xfer(c->upl_xfer, c, c->upl_buf, UPL_BUFSZ, |
| 551 | USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, upl_rxeof); |
| 552 | usbd_transfer(c->upl_xfer); |
| 553 | |
| 554 | DPRINTFN(10,("%s: %s: start rx\n" , device_xname(sc->sc_dev), |
| 555 | __func__)); |
| 556 | #endif |
| 557 | } |
| 558 | |
| 559 | /* |
| 560 | * A frame was downloaded to the chip. It's safe for us to clean up |
| 561 | * the list buffers. |
| 562 | */ |
| 563 | Static void |
| 564 | upl_txeof(struct usbd_xfer *xfer, void *priv, |
| 565 | usbd_status status) |
| 566 | { |
| 567 | struct upl_chain *c = priv; |
| 568 | struct upl_softc *sc = c->upl_sc; |
| 569 | struct ifnet *ifp = &sc->sc_if; |
| 570 | int s; |
| 571 | |
| 572 | if (sc->sc_dying) |
| 573 | return; |
| 574 | |
| 575 | s = splnet(); |
| 576 | |
| 577 | DPRINTFN(10,("%s: %s: enter status=%d\n" , device_xname(sc->sc_dev), |
| 578 | __func__, status)); |
| 579 | |
| 580 | ifp->if_timer = 0; |
| 581 | ifp->if_flags &= ~IFF_OACTIVE; |
| 582 | |
| 583 | if (status != USBD_NORMAL_COMPLETION) { |
| 584 | if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { |
| 585 | splx(s); |
| 586 | return; |
| 587 | } |
| 588 | ifp->if_oerrors++; |
| 589 | printf("%s: usb error on tx: %s\n" , device_xname(sc->sc_dev), |
| 590 | usbd_errstr(status)); |
| 591 | if (status == USBD_STALLED) |
| 592 | usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_TX]); |
| 593 | splx(s); |
| 594 | return; |
| 595 | } |
| 596 | |
| 597 | ifp->if_opackets++; |
| 598 | |
| 599 | m_freem(c->upl_mbuf); |
| 600 | c->upl_mbuf = NULL; |
| 601 | |
| 602 | if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) |
| 603 | upl_start(ifp); |
| 604 | |
| 605 | splx(s); |
| 606 | } |
| 607 | |
| 608 | Static int |
| 609 | upl_send(struct upl_softc *sc, struct mbuf *m, int idx) |
| 610 | { |
| 611 | int total_len; |
| 612 | struct upl_chain *c; |
| 613 | usbd_status err; |
| 614 | |
| 615 | c = &sc->sc_cdata.upl_tx_chain[idx]; |
| 616 | |
| 617 | /* |
| 618 | * Copy the mbuf data into a contiguous buffer, leaving two |
| 619 | * bytes at the beginning to hold the frame length. |
| 620 | */ |
| 621 | m_copydata(m, 0, m->m_pkthdr.len, c->upl_buf); |
| 622 | c->upl_mbuf = m; |
| 623 | |
| 624 | total_len = m->m_pkthdr.len; |
| 625 | |
| 626 | DPRINTFN(10,("%s: %s: total_len=%d\n" , |
| 627 | device_xname(sc->sc_dev), __func__, total_len)); |
| 628 | |
| 629 | usbd_setup_xfer(c->upl_xfer, c, c->upl_buf, total_len, 0, |
| 630 | USBD_DEFAULT_TIMEOUT, upl_txeof); |
| 631 | |
| 632 | /* Transmit */ |
| 633 | err = usbd_transfer(c->upl_xfer); |
| 634 | if (err != USBD_IN_PROGRESS) { |
| 635 | printf("%s: upl_send error=%s\n" , device_xname(sc->sc_dev), |
| 636 | usbd_errstr(err)); |
| 637 | upl_stop(sc); |
| 638 | return EIO; |
| 639 | } |
| 640 | |
| 641 | sc->sc_cdata.upl_tx_cnt++; |
| 642 | |
| 643 | return 0; |
| 644 | } |
| 645 | |
| 646 | Static void |
| 647 | upl_start(struct ifnet *ifp) |
| 648 | { |
| 649 | struct upl_softc *sc = ifp->if_softc; |
| 650 | struct mbuf *m_head = NULL; |
| 651 | |
| 652 | if (sc->sc_dying) |
| 653 | return; |
| 654 | |
| 655 | DPRINTFN(10,("%s: %s: enter\n" , device_xname(sc->sc_dev),__func__)); |
| 656 | |
| 657 | if (ifp->if_flags & IFF_OACTIVE) |
| 658 | return; |
| 659 | |
| 660 | IFQ_POLL(&ifp->if_snd, m_head); |
| 661 | if (m_head == NULL) |
| 662 | return; |
| 663 | |
| 664 | if (upl_send(sc, m_head, 0)) { |
| 665 | ifp->if_flags |= IFF_OACTIVE; |
| 666 | return; |
| 667 | } |
| 668 | |
| 669 | IFQ_DEQUEUE(&ifp->if_snd, m_head); |
| 670 | |
| 671 | /* |
| 672 | * If there's a BPF listener, bounce a copy of this frame |
| 673 | * to him. |
| 674 | */ |
| 675 | bpf_mtap(ifp, m_head); |
| 676 | |
| 677 | ifp->if_flags |= IFF_OACTIVE; |
| 678 | |
| 679 | /* |
| 680 | * Set a timeout in case the chip goes out to lunch. |
| 681 | */ |
| 682 | ifp->if_timer = 5; |
| 683 | } |
| 684 | |
| 685 | Static void |
| 686 | upl_init(void *xsc) |
| 687 | { |
| 688 | struct upl_softc *sc = xsc; |
| 689 | struct ifnet *ifp = &sc->sc_if; |
| 690 | int s; |
| 691 | |
| 692 | if (sc->sc_dying) |
| 693 | return; |
| 694 | |
| 695 | DPRINTFN(10,("%s: %s: enter\n" , device_xname(sc->sc_dev),__func__)); |
| 696 | |
| 697 | if (ifp->if_flags & IFF_RUNNING) |
| 698 | return; |
| 699 | |
| 700 | s = splnet(); |
| 701 | |
| 702 | if (sc->sc_ep[UPL_ENDPT_RX] == NULL) { |
| 703 | if (upl_openpipes(sc)) { |
| 704 | splx(s); |
| 705 | return; |
| 706 | } |
| 707 | } |
| 708 | /* Init TX ring. */ |
| 709 | if (upl_tx_list_init(sc)) { |
| 710 | printf("%s: tx list init failed\n" , device_xname(sc->sc_dev)); |
| 711 | splx(s); |
| 712 | return; |
| 713 | } |
| 714 | |
| 715 | /* Init RX ring. */ |
| 716 | if (upl_rx_list_init(sc)) { |
| 717 | printf("%s: rx list init failed\n" , device_xname(sc->sc_dev)); |
| 718 | splx(s); |
| 719 | return; |
| 720 | } |
| 721 | |
| 722 | /* Start up the receive pipe. */ |
| 723 | for (int i = 0; i < UPL_RX_LIST_CNT; i++) { |
| 724 | struct upl_chain *c = &sc->sc_cdata.upl_rx_chain[i]; |
| 725 | usbd_setup_xfer(c->upl_xfer, c, c->upl_buf, UPL_BUFSZ, |
| 726 | USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, |
| 727 | upl_rxeof); |
| 728 | usbd_transfer(c->upl_xfer); |
| 729 | } |
| 730 | |
| 731 | ifp->if_flags |= IFF_RUNNING; |
| 732 | ifp->if_flags &= ~IFF_OACTIVE; |
| 733 | |
| 734 | splx(s); |
| 735 | } |
| 736 | |
| 737 | Static int |
| 738 | upl_openpipes(struct upl_softc *sc) |
| 739 | { |
| 740 | usbd_status err; |
| 741 | |
| 742 | /* Open RX and TX pipes. */ |
| 743 | err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_RX], |
| 744 | USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_RX]); |
| 745 | if (err) { |
| 746 | printf("%s: open rx pipe failed: %s\n" , |
| 747 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 748 | return EIO; |
| 749 | } |
| 750 | err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[UPL_ENDPT_TX], |
| 751 | USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_TX]); |
| 752 | if (err) { |
| 753 | printf("%s: open tx pipe failed: %s\n" , |
| 754 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 755 | return EIO; |
| 756 | } |
| 757 | err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ed[UPL_ENDPT_INTR], |
| 758 | USBD_EXCLUSIVE_USE, &sc->sc_ep[UPL_ENDPT_INTR], sc, |
| 759 | &sc->sc_ibuf, UPL_INTR_PKTLEN, upl_intr, |
| 760 | UPL_INTR_INTERVAL); |
| 761 | if (err) { |
| 762 | printf("%s: open intr pipe failed: %s\n" , |
| 763 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 764 | return EIO; |
| 765 | } |
| 766 | |
| 767 | return 0; |
| 768 | } |
| 769 | |
| 770 | Static void |
| 771 | upl_intr(struct usbd_xfer *xfer, void *priv, |
| 772 | usbd_status status) |
| 773 | { |
| 774 | struct upl_softc *sc = priv; |
| 775 | struct ifnet *ifp = &sc->sc_if; |
| 776 | uByte stat; |
| 777 | |
| 778 | DPRINTFN(15,("%s: %s: enter\n" , device_xname(sc->sc_dev),__func__)); |
| 779 | |
| 780 | if (sc->sc_dying) |
| 781 | return; |
| 782 | |
| 783 | if (!(ifp->if_flags & IFF_RUNNING)) |
| 784 | return; |
| 785 | |
| 786 | if (status != USBD_NORMAL_COMPLETION) { |
| 787 | if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { |
| 788 | return; |
| 789 | } |
| 790 | sc->sc_intr_errs++; |
| 791 | if (usbd_ratecheck(&sc->sc_rx_notice)) { |
| 792 | printf("%s: %u usb errors on intr: %s\n" , |
| 793 | device_xname(sc->sc_dev), sc->sc_rx_errs, |
| 794 | usbd_errstr(status)); |
| 795 | sc->sc_intr_errs = 0; |
| 796 | } |
| 797 | if (status == USBD_STALLED) |
| 798 | usbd_clear_endpoint_stall_async(sc->sc_ep[UPL_ENDPT_RX]); |
| 799 | return; |
| 800 | } |
| 801 | |
| 802 | stat = sc->sc_ibuf; |
| 803 | |
| 804 | if (stat == 0) |
| 805 | return; |
| 806 | |
| 807 | DPRINTFN(10,("%s: %s: stat=0x%02x\n" , device_xname(sc->sc_dev), |
| 808 | __func__, stat)); |
| 809 | |
| 810 | } |
| 811 | |
| 812 | Static int |
| 813 | upl_ioctl(struct ifnet *ifp, u_long command, void *data) |
| 814 | { |
| 815 | struct upl_softc *sc = ifp->if_softc; |
| 816 | struct ifaddr *ifa = (struct ifaddr *)data; |
| 817 | struct ifreq *ifr = (struct ifreq *)data; |
| 818 | int s, error = 0; |
| 819 | |
| 820 | if (sc->sc_dying) |
| 821 | return EIO; |
| 822 | |
| 823 | DPRINTFN(5,("%s: %s: cmd=0x%08lx\n" , |
| 824 | device_xname(sc->sc_dev), __func__, command)); |
| 825 | |
| 826 | s = splnet(); |
| 827 | |
| 828 | switch(command) { |
| 829 | case SIOCINITIFADDR: |
| 830 | ifp->if_flags |= IFF_UP; |
| 831 | upl_init(sc); |
| 832 | |
| 833 | switch (ifa->ifa_addr->sa_family) { |
| 834 | #ifdef INET |
| 835 | case AF_INET: |
| 836 | break; |
| 837 | #endif /* INET */ |
| 838 | } |
| 839 | break; |
| 840 | |
| 841 | case SIOCSIFMTU: |
| 842 | if (ifr->ifr_mtu > UPL_BUFSZ) |
| 843 | error = EINVAL; |
| 844 | else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) |
| 845 | error = 0; |
| 846 | break; |
| 847 | |
| 848 | case SIOCSIFFLAGS: |
| 849 | if ((error = ifioctl_common(ifp, command, data)) != 0) |
| 850 | break; |
| 851 | /* XXX re-use ether_ioctl() */ |
| 852 | switch (ifp->if_flags & (IFF_UP|IFF_RUNNING)) { |
| 853 | case IFF_UP: |
| 854 | upl_init(sc); |
| 855 | break; |
| 856 | case IFF_RUNNING: |
| 857 | upl_stop(sc); |
| 858 | break; |
| 859 | default: |
| 860 | break; |
| 861 | } |
| 862 | break; |
| 863 | default: |
| 864 | error = ifioctl_common(ifp, command, data); |
| 865 | break; |
| 866 | } |
| 867 | |
| 868 | splx(s); |
| 869 | |
| 870 | return error; |
| 871 | } |
| 872 | |
| 873 | Static void |
| 874 | upl_watchdog(struct ifnet *ifp) |
| 875 | { |
| 876 | struct upl_softc *sc = ifp->if_softc; |
| 877 | |
| 878 | DPRINTFN(5,("%s: %s: enter\n" , device_xname(sc->sc_dev),__func__)); |
| 879 | |
| 880 | if (sc->sc_dying) |
| 881 | return; |
| 882 | |
| 883 | ifp->if_oerrors++; |
| 884 | printf("%s: watchdog timeout\n" , device_xname(sc->sc_dev)); |
| 885 | |
| 886 | upl_stop(sc); |
| 887 | upl_init(sc); |
| 888 | |
| 889 | if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) |
| 890 | upl_start(ifp); |
| 891 | } |
| 892 | |
| 893 | /* |
| 894 | * Stop the adapter and free any mbufs allocated to the |
| 895 | * RX and TX lists. |
| 896 | */ |
| 897 | Static void |
| 898 | upl_stop(struct upl_softc *sc) |
| 899 | { |
| 900 | usbd_status err; |
| 901 | struct ifnet *ifp; |
| 902 | int i; |
| 903 | |
| 904 | DPRINTFN(10,("%s: %s: enter\n" , device_xname(sc->sc_dev),__func__)); |
| 905 | |
| 906 | ifp = &sc->sc_if; |
| 907 | ifp->if_timer = 0; |
| 908 | |
| 909 | /* Stop transfers. */ |
| 910 | if (sc->sc_ep[UPL_ENDPT_RX] != NULL) { |
| 911 | err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_RX]); |
| 912 | if (err) { |
| 913 | printf("%s: abort rx pipe failed: %s\n" , |
| 914 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 915 | } |
| 916 | } |
| 917 | |
| 918 | if (sc->sc_ep[UPL_ENDPT_TX] != NULL) { |
| 919 | err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_TX]); |
| 920 | if (err) { |
| 921 | printf("%s: abort tx pipe failed: %s\n" , |
| 922 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 923 | } |
| 924 | } |
| 925 | |
| 926 | if (sc->sc_ep[UPL_ENDPT_INTR] != NULL) { |
| 927 | err = usbd_abort_pipe(sc->sc_ep[UPL_ENDPT_INTR]); |
| 928 | if (err) { |
| 929 | printf("%s: abort intr pipe failed: %s\n" , |
| 930 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 931 | } |
| 932 | } |
| 933 | |
| 934 | /* Free RX resources. */ |
| 935 | for (i = 0; i < UPL_RX_LIST_CNT; i++) { |
| 936 | if (sc->sc_cdata.upl_rx_chain[i].upl_mbuf != NULL) { |
| 937 | m_freem(sc->sc_cdata.upl_rx_chain[i].upl_mbuf); |
| 938 | sc->sc_cdata.upl_rx_chain[i].upl_mbuf = NULL; |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | /* Free TX resources. */ |
| 943 | for (i = 0; i < UPL_TX_LIST_CNT; i++) { |
| 944 | if (sc->sc_cdata.upl_tx_chain[i].upl_mbuf != NULL) { |
| 945 | m_freem(sc->sc_cdata.upl_tx_chain[i].upl_mbuf); |
| 946 | sc->sc_cdata.upl_tx_chain[i].upl_mbuf = NULL; |
| 947 | } |
| 948 | if (sc->sc_cdata.upl_tx_chain[i].upl_xfer != NULL) { |
| 949 | usbd_destroy_xfer(sc->sc_cdata.upl_tx_chain[i].upl_xfer); |
| 950 | sc->sc_cdata.upl_tx_chain[i].upl_xfer = NULL; |
| 951 | } |
| 952 | } |
| 953 | |
| 954 | /* Close pipes */ |
| 955 | if (sc->sc_ep[UPL_ENDPT_RX] != NULL) { |
| 956 | err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_RX]); |
| 957 | if (err) { |
| 958 | printf("%s: close rx pipe failed: %s\n" , |
| 959 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 960 | } |
| 961 | sc->sc_ep[UPL_ENDPT_RX] = NULL; |
| 962 | } |
| 963 | |
| 964 | if (sc->sc_ep[UPL_ENDPT_TX] != NULL) { |
| 965 | err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_TX]); |
| 966 | if (err) { |
| 967 | printf("%s: close tx pipe failed: %s\n" , |
| 968 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 969 | } |
| 970 | sc->sc_ep[UPL_ENDPT_TX] = NULL; |
| 971 | } |
| 972 | |
| 973 | if (sc->sc_ep[UPL_ENDPT_INTR] != NULL) { |
| 974 | err = usbd_close_pipe(sc->sc_ep[UPL_ENDPT_INTR]); |
| 975 | if (err) { |
| 976 | printf("%s: close intr pipe failed: %s\n" , |
| 977 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 978 | } |
| 979 | sc->sc_ep[UPL_ENDPT_INTR] = NULL; |
| 980 | } |
| 981 | |
| 982 | ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); |
| 983 | } |
| 984 | |
| 985 | Static int |
| 986 | upl_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst, |
| 987 | const struct rtentry *rt0) |
| 988 | { |
| 989 | int error; |
| 990 | |
| 991 | DPRINTFN(10,("%s: %s: enter\n" , |
| 992 | device_xname(((struct upl_softc *)ifp->if_softc)->sc_dev), |
| 993 | __func__)); |
| 994 | |
| 995 | /* |
| 996 | * if the queueing discipline needs packet classification, |
| 997 | * do it now. |
| 998 | */ |
| 999 | IFQ_CLASSIFY(&ifp->if_snd, m, dst->sa_family); |
| 1000 | |
| 1001 | /* |
| 1002 | * Queue message on interface, and start output if interface |
| 1003 | * not yet active. |
| 1004 | */ |
| 1005 | error = if_transmit_lock(ifp, m); |
| 1006 | |
| 1007 | return error; |
| 1008 | } |
| 1009 | |
| 1010 | Static void |
| 1011 | upl_input(struct ifnet *ifp, struct mbuf *m) |
| 1012 | { |
| 1013 | #ifdef INET |
| 1014 | size_t pktlen = m->m_len; |
| 1015 | int s; |
| 1016 | |
| 1017 | s = splnet(); |
| 1018 | if (__predict_false(!pktq_enqueue(ip_pktq, m, 0))) { |
| 1019 | ifp->if_iqdrops++; |
| 1020 | m_freem(m); |
| 1021 | } else { |
| 1022 | ifp->if_ipackets++; |
| 1023 | ifp->if_ibytes += pktlen; |
| 1024 | } |
| 1025 | splx(s); |
| 1026 | #endif |
| 1027 | } |
| 1028 | |