| 1 | /* $NetBSD: uhso.c,v 1.23 2016/10/31 12:18:10 christos Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2009 Iain Hibbert |
| 5 | * Copyright (c) 2008 Fredrik Lindberg |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | /* |
| 30 | * This driver originated as the hso module for FreeBSD written by |
| 31 | * Fredrik Lindberg[1]. It has been rewritten almost completely for |
| 32 | * NetBSD, and to support more devices with information extracted from |
| 33 | * the Linux hso driver provided by Option N.V.[2] |
| 34 | * |
| 35 | * [1] http://www.shapeshifter.se/code/hso |
| 36 | * [2] http://www.pharscape.org/hso.htm |
| 37 | */ |
| 38 | |
| 39 | #include <sys/cdefs.h> |
| 40 | __KERNEL_RCSID(0, "$NetBSD: uhso.c,v 1.23 2016/10/31 12:18:10 christos Exp $" ); |
| 41 | |
| 42 | #ifdef _KERNEL_OPT |
| 43 | #include "opt_inet.h" |
| 44 | #endif |
| 45 | |
| 46 | #include <sys/param.h> |
| 47 | #include <sys/conf.h> |
| 48 | #include <sys/fcntl.h> |
| 49 | #include <sys/kauth.h> |
| 50 | #include <sys/kernel.h> |
| 51 | #include <sys/kmem.h> |
| 52 | #include <sys/mbuf.h> |
| 53 | #include <sys/poll.h> |
| 54 | #include <sys/queue.h> |
| 55 | #include <sys/socket.h> |
| 56 | #include <sys/sysctl.h> |
| 57 | #include <sys/systm.h> |
| 58 | #include <sys/tty.h> |
| 59 | #include <sys/vnode.h> |
| 60 | #include <sys/lwp.h> |
| 61 | |
| 62 | #include <net/bpf.h> |
| 63 | #include <net/if.h> |
| 64 | #include <net/if_dl.h> |
| 65 | #include <net/if_types.h> |
| 66 | #include <net/netisr.h> |
| 67 | |
| 68 | #include <netinet/in_systm.h> |
| 69 | #include <netinet/in_var.h> |
| 70 | #include <netinet/ip.h> |
| 71 | |
| 72 | #include <dev/usb/usb.h> |
| 73 | #include <dev/usb/usbcdc.h> |
| 74 | #include <dev/usb/usbdi.h> |
| 75 | #include <dev/usb/usbdi_util.h> |
| 76 | #include <dev/usb/umassvar.h> |
| 77 | |
| 78 | #include <dev/scsipi/scsi_disk.h> |
| 79 | |
| 80 | #include "usbdevs.h" |
| 81 | |
| 82 | #undef DPRINTF |
| 83 | #ifdef UHSO_DEBUG |
| 84 | /* |
| 85 | * defined levels |
| 86 | * 0 warnings only |
| 87 | * 1 informational |
| 88 | * 5 really chatty |
| 89 | */ |
| 90 | int uhso_debug = 0; |
| 91 | |
| 92 | #define DPRINTF(n, ...) do { \ |
| 93 | if (uhso_debug >= (n)) { \ |
| 94 | printf("%s: ", __func__); \ |
| 95 | printf(__VA_ARGS__); \ |
| 96 | } \ |
| 97 | } while (/* CONSTCOND */0) |
| 98 | #else |
| 99 | #define DPRINTF(...) ((void)0) |
| 100 | #endif |
| 101 | |
| 102 | /* |
| 103 | * When first attached, the device class will be 0 and the modem |
| 104 | * will attach as UMASS until a SCSI REZERO_UNIT command is sent, |
| 105 | * in which case it will detach and reattach with device class set |
| 106 | * to UDCLASS_VENDOR (0xff) and provide the serial interfaces. |
| 107 | * |
| 108 | * If autoswitch is set (the default) this will happen automatically. |
| 109 | */ |
| 110 | Static int uhso_autoswitch = 1; |
| 111 | |
| 112 | SYSCTL_SETUP(sysctl_hw_uhso_setup, "uhso sysctl setup" ) |
| 113 | { |
| 114 | const struct sysctlnode *node = NULL; |
| 115 | |
| 116 | sysctl_createv(clog, 0, NULL, &node, |
| 117 | CTLFLAG_PERMANENT, |
| 118 | CTLTYPE_NODE, "uhso" , |
| 119 | NULL, |
| 120 | NULL, 0, |
| 121 | NULL, 0, |
| 122 | CTL_HW, CTL_CREATE, CTL_EOL); |
| 123 | |
| 124 | if (node == NULL) |
| 125 | return; |
| 126 | |
| 127 | #ifdef UHSO_DEBUG |
| 128 | sysctl_createv(clog, 0, &node, NULL, |
| 129 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 130 | CTLTYPE_INT, "debug" , |
| 131 | SYSCTL_DESCR("uhso debug level (0, 1, 5)" ), |
| 132 | NULL, 0, |
| 133 | &uhso_debug, sizeof(uhso_debug), |
| 134 | CTL_CREATE, CTL_EOL); |
| 135 | #endif |
| 136 | |
| 137 | sysctl_createv(clog, 0, &node, NULL, |
| 138 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 139 | CTLTYPE_INT, "autoswitch" , |
| 140 | SYSCTL_DESCR("automatically switch device into modem mode" ), |
| 141 | NULL, 0, |
| 142 | &uhso_autoswitch, sizeof(uhso_autoswitch), |
| 143 | CTL_CREATE, CTL_EOL); |
| 144 | } |
| 145 | |
| 146 | /* |
| 147 | * The uhso modems have a number of interfaces providing a variety of |
| 148 | * IO ports using the bulk endpoints, or multiplexed on the control |
| 149 | * endpoints. We separate the ports by function and provide each with |
| 150 | * a predictable index number used to construct the device minor number. |
| 151 | * |
| 152 | * The Network port is configured as a network interface rather than |
| 153 | * a tty as it provides raw IPv4 packets. |
| 154 | */ |
| 155 | |
| 156 | Static const char *uhso_port_name[] = { |
| 157 | "Control" , |
| 158 | "Diagnostic" , |
| 159 | "Diagnostic2" , |
| 160 | "Application" , |
| 161 | "Application2" , |
| 162 | "GPS" , |
| 163 | "GPS Control" , |
| 164 | "PC Smartcard" , |
| 165 | "Modem" , |
| 166 | "MSD" , /* "Modem Sharing Device" ? */ |
| 167 | "Voice" , |
| 168 | "Network" , |
| 169 | }; |
| 170 | |
| 171 | #define UHSO_PORT_CONTROL 0x00 |
| 172 | #define UHSO_PORT_DIAG 0x01 |
| 173 | #define UHSO_PORT_DIAG2 0x02 |
| 174 | #define UHSO_PORT_APP 0x03 |
| 175 | #define UHSO_PORT_APP2 0x04 |
| 176 | #define UHSO_PORT_GPS 0x05 |
| 177 | #define UHSO_PORT_GPS_CONTROL 0x06 |
| 178 | #define UHSO_PORT_PCSC 0x07 |
| 179 | #define UHSO_PORT_MODEM 0x08 |
| 180 | #define UHSO_PORT_MSD 0x09 |
| 181 | #define UHSO_PORT_VOICE 0x0a |
| 182 | #define UHSO_PORT_NETWORK 0x0b |
| 183 | |
| 184 | #define UHSO_PORT_MAX __arraycount(uhso_port_name) |
| 185 | |
| 186 | #define UHSO_IFACE_MUX 0x20 |
| 187 | #define UHSO_IFACE_BULK 0x40 |
| 188 | #define UHSO_IFACE_IFNET 0x80 |
| 189 | |
| 190 | /* |
| 191 | * The interface specification can sometimes be deduced from the device |
| 192 | * type and interface number, or some modems support a vendor specific |
| 193 | * way to read config info which we can translate to the port index. |
| 194 | */ |
| 195 | Static const uint8_t uhso_spec_default[] = { |
| 196 | UHSO_IFACE_IFNET | UHSO_PORT_NETWORK | UHSO_IFACE_MUX, |
| 197 | UHSO_IFACE_BULK | UHSO_PORT_DIAG, |
| 198 | UHSO_IFACE_BULK | UHSO_PORT_MODEM, |
| 199 | }; |
| 200 | |
| 201 | Static const uint8_t uhso_spec_icon321[] = { |
| 202 | UHSO_IFACE_IFNET | UHSO_PORT_NETWORK | UHSO_IFACE_MUX, |
| 203 | UHSO_IFACE_BULK | UHSO_PORT_DIAG2, |
| 204 | UHSO_IFACE_BULK | UHSO_PORT_MODEM, |
| 205 | UHSO_IFACE_BULK | UHSO_PORT_DIAG, |
| 206 | }; |
| 207 | |
| 208 | Static const uint8_t uhso_spec_config[] = { |
| 209 | 0, |
| 210 | UHSO_IFACE_BULK | UHSO_PORT_DIAG, |
| 211 | UHSO_IFACE_BULK | UHSO_PORT_GPS, |
| 212 | UHSO_IFACE_BULK | UHSO_PORT_GPS_CONTROL, |
| 213 | UHSO_IFACE_BULK | UHSO_PORT_APP, |
| 214 | UHSO_IFACE_BULK | UHSO_PORT_APP2, |
| 215 | UHSO_IFACE_BULK | UHSO_PORT_CONTROL, |
| 216 | UHSO_IFACE_IFNET | UHSO_PORT_NETWORK, |
| 217 | UHSO_IFACE_BULK | UHSO_PORT_MODEM, |
| 218 | UHSO_IFACE_BULK | UHSO_PORT_MSD, |
| 219 | UHSO_IFACE_BULK | UHSO_PORT_PCSC, |
| 220 | UHSO_IFACE_BULK | UHSO_PORT_VOICE, |
| 221 | }; |
| 222 | |
| 223 | struct uhso_dev { |
| 224 | uint16_t vendor; |
| 225 | uint16_t product; |
| 226 | uint16_t type; |
| 227 | }; |
| 228 | |
| 229 | #define UHSOTYPE_DEFAULT 1 |
| 230 | #define UHSOTYPE_ICON321 2 |
| 231 | #define UHSOTYPE_CONFIG 3 |
| 232 | |
| 233 | Static const struct uhso_dev uhso_devs[] = { |
| 234 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_MAXHSDPA, UHSOTYPE_DEFAULT }, |
| 235 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GSICON72, UHSOTYPE_DEFAULT }, |
| 236 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_ICON225, UHSOTYPE_DEFAULT }, |
| 237 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GEHSUPA, UHSOTYPE_DEFAULT }, |
| 238 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GTHSUPA, UHSOTYPE_DEFAULT }, |
| 239 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GSHSUPA, UHSOTYPE_DEFAULT }, |
| 240 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GE40X1, UHSOTYPE_CONFIG }, |
| 241 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GE40X2, UHSOTYPE_CONFIG }, |
| 242 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GE40X3, UHSOTYPE_CONFIG }, |
| 243 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_ICON401, UHSOTYPE_CONFIG }, |
| 244 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GTM382, UHSOTYPE_CONFIG }, |
| 245 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GE40X4, UHSOTYPE_CONFIG }, |
| 246 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GTHSUPAM, UHSOTYPE_CONFIG }, |
| 247 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_ICONEDGE, UHSOTYPE_DEFAULT }, |
| 248 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_MODHSXPA, UHSOTYPE_ICON321 }, |
| 249 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_ICON321, UHSOTYPE_ICON321 }, |
| 250 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_ICON322, UHSOTYPE_ICON321 }, |
| 251 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_ICON505, UHSOTYPE_CONFIG }, |
| 252 | }; |
| 253 | |
| 254 | #define uhso_lookup(p, v) ((const struct uhso_dev *)usb_lookup(uhso_devs, (p), (v))) |
| 255 | |
| 256 | /* IO buffer sizes */ |
| 257 | #define UHSO_MUX_WSIZE 64 |
| 258 | #define UHSO_MUX_RSIZE 1024 |
| 259 | #define UHSO_BULK_WSIZE 8192 |
| 260 | #define UHSO_BULK_RSIZE 4096 |
| 261 | #define UHSO_IFNET_MTU 1500 |
| 262 | |
| 263 | /* |
| 264 | * Each IO port provided by the modem can be mapped to a network |
| 265 | * interface (when hp_ifp != NULL) or a tty (when hp_tp != NULL) |
| 266 | * which may be multiplexed and sharing interrupt and control endpoints |
| 267 | * from an interface, or using the dedicated bulk endpoints. |
| 268 | */ |
| 269 | |
| 270 | struct uhso_port; |
| 271 | struct uhso_softc; |
| 272 | |
| 273 | /* uhso callback functions return errno on failure */ |
| 274 | typedef int (*uhso_callback)(struct uhso_port *); |
| 275 | |
| 276 | struct uhso_port { |
| 277 | struct uhso_softc *hp_sc; /* master softc */ |
| 278 | struct tty *hp_tp; /* tty pointer */ |
| 279 | struct ifnet *hp_ifp; /* ifnet pointer */ |
| 280 | unsigned int hp_flags; /* see below */ |
| 281 | int hp_swflags; /* persistent tty flags */ |
| 282 | int hp_status; /* modem status */ |
| 283 | |
| 284 | /* port type specific handlers */ |
| 285 | uhso_callback hp_abort; /* abort any transfers */ |
| 286 | uhso_callback hp_detach; /* detach port completely */ |
| 287 | uhso_callback hp_init; /* init port (first open) */ |
| 288 | uhso_callback hp_clean; /* clean port (last close) */ |
| 289 | uhso_callback hp_write; /* write data */ |
| 290 | usbd_callback hp_write_cb; /* write callback */ |
| 291 | uhso_callback hp_read; /* read data */ |
| 292 | usbd_callback hp_read_cb; /* read callback */ |
| 293 | uhso_callback hp_control; /* set control lines */ |
| 294 | |
| 295 | struct usbd_interface *hp_ifh; /* interface handle */ |
| 296 | unsigned int hp_index; /* usb request index */ |
| 297 | |
| 298 | int hp_iaddr; /* interrupt endpoint */ |
| 299 | struct usbd_pipe *hp_ipipe; /* interrupt pipe */ |
| 300 | void *hp_ibuf; /* interrupt buffer */ |
| 301 | size_t hp_isize; /* allocated size */ |
| 302 | |
| 303 | int hp_raddr; /* bulk in endpoint */ |
| 304 | struct usbd_pipe *hp_rpipe; /* bulk in pipe */ |
| 305 | struct usbd_xfer *hp_rxfer; /* input xfer */ |
| 306 | void *hp_rbuf; /* input buffer */ |
| 307 | size_t hp_rlen; /* fill length */ |
| 308 | size_t hp_rsize; /* allocated size */ |
| 309 | |
| 310 | int hp_waddr; /* bulk out endpoint */ |
| 311 | struct usbd_pipe *hp_wpipe; /* bulk out pipe */ |
| 312 | struct usbd_xfer *hp_wxfer; /* output xfer */ |
| 313 | void *hp_wbuf; /* output buffer */ |
| 314 | size_t hp_wlen; /* fill length */ |
| 315 | size_t hp_wsize; /* allocated size */ |
| 316 | |
| 317 | struct mbuf *hp_mbuf; /* partial packet */ |
| 318 | }; |
| 319 | |
| 320 | /* hp_flags */ |
| 321 | #define UHSO_PORT_MUXPIPE __BIT(0) /* duplicate ipipe/ibuf references */ |
| 322 | #define UHSO_PORT_MUXREADY __BIT(1) /* input is ready */ |
| 323 | #define UHSO_PORT_MUXBUSY __BIT(2) /* read in progress */ |
| 324 | |
| 325 | struct uhso_softc { |
| 326 | device_t sc_dev; /* self */ |
| 327 | struct usbd_device *sc_udev; |
| 328 | int sc_refcnt; |
| 329 | struct uhso_port *sc_port[UHSO_PORT_MAX]; |
| 330 | }; |
| 331 | |
| 332 | #define UHSO_CONFIG_NO 1 |
| 333 | |
| 334 | int uhso_match(device_t, cfdata_t, void *); |
| 335 | void uhso_attach(device_t, device_t, void *); |
| 336 | int uhso_detach(device_t, int); |
| 337 | |
| 338 | extern struct cfdriver uhso_cd; |
| 339 | |
| 340 | CFATTACH_DECL_NEW(uhso, sizeof(struct uhso_softc), uhso_match, uhso_attach, |
| 341 | uhso_detach, NULL); |
| 342 | |
| 343 | Static int uhso_switch_mode(struct usbd_device *); |
| 344 | Static int uhso_get_iface_spec(struct usb_attach_arg *, uint8_t, uint8_t *); |
| 345 | Static usb_endpoint_descriptor_t *uhso_get_endpoint(struct usbd_interface *, |
| 346 | int, int); |
| 347 | |
| 348 | Static void uhso_mux_attach(struct uhso_softc *, struct usbd_interface *, int); |
| 349 | Static int uhso_mux_abort(struct uhso_port *); |
| 350 | Static int uhso_mux_detach(struct uhso_port *); |
| 351 | Static int uhso_mux_init(struct uhso_port *); |
| 352 | Static int uhso_mux_clean(struct uhso_port *); |
| 353 | Static int uhso_mux_write(struct uhso_port *); |
| 354 | Static int uhso_mux_read(struct uhso_port *); |
| 355 | Static int uhso_mux_control(struct uhso_port *); |
| 356 | Static void uhso_mux_intr(struct usbd_xfer *, void *, usbd_status); |
| 357 | |
| 358 | Static void uhso_bulk_attach(struct uhso_softc *, struct usbd_interface *, int); |
| 359 | Static int uhso_bulk_abort(struct uhso_port *); |
| 360 | Static int uhso_bulk_detach(struct uhso_port *); |
| 361 | Static int uhso_bulk_init(struct uhso_port *); |
| 362 | Static int uhso_bulk_clean(struct uhso_port *); |
| 363 | Static int uhso_bulk_write(struct uhso_port *); |
| 364 | Static int uhso_bulk_read(struct uhso_port *); |
| 365 | Static int uhso_bulk_control(struct uhso_port *); |
| 366 | Static void uhso_bulk_intr(struct usbd_xfer *, void *, usbd_status); |
| 367 | |
| 368 | Static void uhso_tty_attach(struct uhso_port *); |
| 369 | Static void uhso_tty_detach(struct uhso_port *); |
| 370 | Static void uhso_tty_read_cb(struct usbd_xfer *, void *, usbd_status); |
| 371 | Static void uhso_tty_write_cb(struct usbd_xfer *, void *, usbd_status); |
| 372 | |
| 373 | dev_type_open(uhso_tty_open); |
| 374 | dev_type_close(uhso_tty_close); |
| 375 | dev_type_read(uhso_tty_read); |
| 376 | dev_type_write(uhso_tty_write); |
| 377 | dev_type_ioctl(uhso_tty_ioctl); |
| 378 | dev_type_stop(uhso_tty_stop); |
| 379 | dev_type_tty(uhso_tty_tty); |
| 380 | dev_type_poll(uhso_tty_poll); |
| 381 | |
| 382 | const struct cdevsw uhso_cdevsw = { |
| 383 | .d_open = uhso_tty_open, |
| 384 | .d_close = uhso_tty_close, |
| 385 | .d_read = uhso_tty_read, |
| 386 | .d_write = uhso_tty_write, |
| 387 | .d_ioctl = uhso_tty_ioctl, |
| 388 | .d_stop = uhso_tty_stop, |
| 389 | .d_tty = uhso_tty_tty, |
| 390 | .d_poll = uhso_tty_poll, |
| 391 | .d_mmap = nommap, |
| 392 | .d_kqfilter = ttykqfilter, |
| 393 | .d_discard = nodiscard, |
| 394 | .d_flag = D_TTY |
| 395 | }; |
| 396 | |
| 397 | Static int uhso_tty_init(struct uhso_port *); |
| 398 | Static void uhso_tty_clean(struct uhso_port *); |
| 399 | Static int uhso_tty_do_ioctl(struct uhso_port *, u_long, void *, int, struct lwp *); |
| 400 | Static void uhso_tty_start(struct tty *); |
| 401 | Static int uhso_tty_param(struct tty *, struct termios *); |
| 402 | Static int uhso_tty_control(struct uhso_port *, u_long, int); |
| 403 | |
| 404 | #define UHSO_UNIT_MASK TTUNIT_MASK |
| 405 | #define UHSO_PORT_MASK 0x0000f |
| 406 | #define UHSO_DIALOUT_MASK TTDIALOUT_MASK |
| 407 | #define UHSO_CALLUNIT_MASK TTCALLUNIT_MASK |
| 408 | |
| 409 | #define UHSOUNIT(x) (TTUNIT(x) >> 4) |
| 410 | #define UHSOPORT(x) (TTUNIT(x) & UHSO_PORT_MASK) |
| 411 | #define UHSODIALOUT(x) TTDIALOUT(x) |
| 412 | #define UHSOMINOR(u, p) ((((u) << 4) & UHSO_UNIT_MASK) | ((p) & UHSO_UNIT_MASK)) |
| 413 | |
| 414 | Static void uhso_ifnet_attach(struct uhso_softc *, struct usbd_interface *, |
| 415 | int); |
| 416 | Static int uhso_ifnet_abort(struct uhso_port *); |
| 417 | Static int uhso_ifnet_detach(struct uhso_port *); |
| 418 | Static void uhso_ifnet_read_cb(struct usbd_xfer *, void *, usbd_status); |
| 419 | Static void uhso_ifnet_input(struct ifnet *, struct mbuf **, uint8_t *, size_t); |
| 420 | Static void uhso_ifnet_write_cb(struct usbd_xfer *, void *, usbd_status); |
| 421 | |
| 422 | Static int uhso_ifnet_ioctl(struct ifnet *, u_long, void *); |
| 423 | Static int uhso_ifnet_init(struct uhso_port *); |
| 424 | Static void uhso_ifnet_clean(struct uhso_port *); |
| 425 | Static void uhso_ifnet_start(struct ifnet *); |
| 426 | Static int uhso_ifnet_output(struct ifnet *, struct mbuf *, |
| 427 | const struct sockaddr *, const struct rtentry *); |
| 428 | |
| 429 | |
| 430 | /******************************************************************************* |
| 431 | * |
| 432 | * USB autoconfig |
| 433 | * |
| 434 | */ |
| 435 | |
| 436 | int |
| 437 | uhso_match(device_t parent, cfdata_t match, void *aux) |
| 438 | { |
| 439 | struct usb_attach_arg *uaa = aux; |
| 440 | |
| 441 | /* |
| 442 | * don't claim this device if autoswitch is disabled |
| 443 | * and it is not in modem mode already |
| 444 | */ |
| 445 | if (!uhso_autoswitch && uaa->uaa_class != UDCLASS_VENDOR) |
| 446 | return UMATCH_NONE; |
| 447 | |
| 448 | if (uhso_lookup(uaa->uaa_vendor, uaa->uaa_product)) |
| 449 | return UMATCH_VENDOR_PRODUCT; |
| 450 | |
| 451 | return UMATCH_NONE; |
| 452 | } |
| 453 | |
| 454 | void |
| 455 | uhso_attach(device_t parent, device_t self, void *aux) |
| 456 | { |
| 457 | struct uhso_softc *sc = device_private(self); |
| 458 | struct usb_attach_arg *uaa = aux; |
| 459 | struct usbd_interface *ifh; |
| 460 | char *devinfop; |
| 461 | uint8_t count, i, spec; |
| 462 | usbd_status status; |
| 463 | |
| 464 | DPRINTF(1, ": sc = %p, self=%p" , sc, self); |
| 465 | |
| 466 | sc->sc_dev = self; |
| 467 | sc->sc_udev = uaa->uaa_device; |
| 468 | |
| 469 | aprint_naive("\n" ); |
| 470 | aprint_normal("\n" ); |
| 471 | |
| 472 | devinfop = usbd_devinfo_alloc(uaa->uaa_device, 0); |
| 473 | aprint_normal_dev(self, "%s\n" , devinfop); |
| 474 | usbd_devinfo_free(devinfop); |
| 475 | |
| 476 | usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); |
| 477 | |
| 478 | status = usbd_set_config_no(sc->sc_udev, UHSO_CONFIG_NO, 1); |
| 479 | if (status != USBD_NORMAL_COMPLETION) { |
| 480 | aprint_error_dev(self, "failed to set configuration" |
| 481 | ", err=%s\n" , usbd_errstr(status)); |
| 482 | return; |
| 483 | } |
| 484 | |
| 485 | if (uaa->uaa_class != UDCLASS_VENDOR) { |
| 486 | aprint_verbose_dev(self, |
| 487 | "Switching device into modem mode..\n" ); |
| 488 | if (uhso_switch_mode(uaa->uaa_device) != 0) |
| 489 | aprint_error_dev(self, "modem switch failed\n" ); |
| 490 | |
| 491 | return; |
| 492 | } |
| 493 | |
| 494 | count = 0; |
| 495 | (void)usbd_interface_count(sc->sc_udev, &count); |
| 496 | DPRINTF(1, "interface count %d\n" , count); |
| 497 | |
| 498 | for (i = 0; i < count; i++) { |
| 499 | status = usbd_device2interface_handle(sc->sc_udev, i, &ifh); |
| 500 | if (status != USBD_NORMAL_COMPLETION) { |
| 501 | aprint_error_dev(self, |
| 502 | "could not get interface %d: %s\n" , |
| 503 | i, usbd_errstr(status)); |
| 504 | |
| 505 | return; |
| 506 | } |
| 507 | |
| 508 | if (!uhso_get_iface_spec(uaa, i, &spec)) { |
| 509 | aprint_error_dev(self, |
| 510 | "could not get interface %d specification\n" , i); |
| 511 | |
| 512 | return; |
| 513 | } |
| 514 | |
| 515 | if (ISSET(spec, UHSO_IFACE_MUX)) |
| 516 | uhso_mux_attach(sc, ifh, UHSOPORT(spec)); |
| 517 | |
| 518 | if (ISSET(spec, UHSO_IFACE_BULK)) |
| 519 | uhso_bulk_attach(sc, ifh, UHSOPORT(spec)); |
| 520 | |
| 521 | if (ISSET(spec, UHSO_IFACE_IFNET)) |
| 522 | uhso_ifnet_attach(sc, ifh, UHSOPORT(spec)); |
| 523 | } |
| 524 | |
| 525 | if (!pmf_device_register(self, NULL, NULL)) |
| 526 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
| 527 | } |
| 528 | |
| 529 | int |
| 530 | uhso_detach(device_t self, int flags) |
| 531 | { |
| 532 | struct uhso_softc *sc = device_private(self); |
| 533 | struct uhso_port *hp; |
| 534 | devmajor_t major; |
| 535 | devminor_t minor; |
| 536 | unsigned int i; |
| 537 | int s; |
| 538 | |
| 539 | pmf_device_deregister(self); |
| 540 | |
| 541 | for (i = 0; i < UHSO_PORT_MAX; i++) { |
| 542 | hp = sc->sc_port[i]; |
| 543 | if (hp != NULL) |
| 544 | (*hp->hp_abort)(hp); |
| 545 | } |
| 546 | |
| 547 | s = splusb(); |
| 548 | if (sc->sc_refcnt-- > 0) { |
| 549 | DPRINTF(1, "waiting for refcnt (%d)..\n" , sc->sc_refcnt); |
| 550 | usb_detach_waitold(sc->sc_dev); |
| 551 | } |
| 552 | splx(s); |
| 553 | |
| 554 | /* |
| 555 | * XXX the tty close routine increases/decreases refcnt causing |
| 556 | * XXX another usb_detach_wakeupold() does it matter, should these |
| 557 | * XXX be before the detach_wait? or before the abort? |
| 558 | */ |
| 559 | |
| 560 | /* Nuke the vnodes for any open instances (calls close). */ |
| 561 | major = cdevsw_lookup_major(&uhso_cdevsw); |
| 562 | minor = UHSOMINOR(device_unit(sc->sc_dev), 0); |
| 563 | vdevgone(major, minor, minor + UHSO_PORT_MAX, VCHR); |
| 564 | minor = UHSOMINOR(device_unit(sc->sc_dev), 0) | UHSO_DIALOUT_MASK; |
| 565 | vdevgone(major, minor, minor + UHSO_PORT_MAX, VCHR); |
| 566 | minor = UHSOMINOR(device_unit(sc->sc_dev), 0) | UHSO_CALLUNIT_MASK; |
| 567 | vdevgone(major, minor, minor + UHSO_PORT_MAX, VCHR); |
| 568 | |
| 569 | for (i = 0; i < UHSO_PORT_MAX; i++) { |
| 570 | hp = sc->sc_port[i]; |
| 571 | if (hp != NULL) |
| 572 | (*hp->hp_detach)(hp); |
| 573 | } |
| 574 | |
| 575 | usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); |
| 576 | |
| 577 | return 0; |
| 578 | } |
| 579 | |
| 580 | /* |
| 581 | * Send SCSI REZERO_UNIT command to switch device into modem mode |
| 582 | */ |
| 583 | Static int |
| 584 | uhso_switch_mode(struct usbd_device *udev) |
| 585 | { |
| 586 | umass_bbb_cbw_t cmd; |
| 587 | usb_endpoint_descriptor_t *ed; |
| 588 | struct usbd_interface *ifh; |
| 589 | struct usbd_pipe *pipe; |
| 590 | struct usbd_xfer *xfer; |
| 591 | usbd_status status; |
| 592 | |
| 593 | status = usbd_device2interface_handle(udev, 0, &ifh); |
| 594 | if (status != USBD_NORMAL_COMPLETION) |
| 595 | return EIO; |
| 596 | |
| 597 | ed = uhso_get_endpoint(ifh, UE_BULK, UE_DIR_OUT); |
| 598 | if (ed == NULL) |
| 599 | return ENODEV; |
| 600 | |
| 601 | status = usbd_open_pipe(ifh, ed->bEndpointAddress, 0, &pipe); |
| 602 | if (status != USBD_NORMAL_COMPLETION) |
| 603 | return EIO; |
| 604 | |
| 605 | int error = usbd_create_xfer(pipe, sizeof(cmd), 0, 0, &xfer); |
| 606 | if (error) |
| 607 | return error; |
| 608 | |
| 609 | USETDW(cmd.dCBWSignature, CBWSIGNATURE); |
| 610 | USETDW(cmd.dCBWTag, 1); |
| 611 | USETDW(cmd.dCBWDataTransferLength, 0); |
| 612 | cmd.bCBWFlags = CBWFLAGS_OUT; |
| 613 | cmd.bCBWLUN = 0; |
| 614 | cmd.bCDBLength = 6; |
| 615 | |
| 616 | memset(&cmd.CBWCDB, 0, CBWCDBLENGTH); |
| 617 | cmd.CBWCDB[0] = SCSI_REZERO_UNIT; |
| 618 | |
| 619 | usbd_setup_xfer(xfer, NULL, &cmd, sizeof(cmd), |
| 620 | USBD_SYNCHRONOUS, USBD_DEFAULT_TIMEOUT, NULL); |
| 621 | |
| 622 | status = usbd_transfer(xfer); |
| 623 | |
| 624 | usbd_destroy_xfer(xfer); |
| 625 | usbd_close_pipe(pipe); |
| 626 | |
| 627 | return (status == USBD_NORMAL_COMPLETION ? 0 : EIO); |
| 628 | } |
| 629 | |
| 630 | Static int |
| 631 | uhso_get_iface_spec(struct usb_attach_arg *uaa, uint8_t ifnum, uint8_t *spec) |
| 632 | { |
| 633 | const struct uhso_dev *hd; |
| 634 | uint8_t config[17]; |
| 635 | usb_device_request_t req; |
| 636 | usbd_status status; |
| 637 | |
| 638 | hd = uhso_lookup(uaa->uaa_vendor, uaa->uaa_product); |
| 639 | KASSERT(hd != NULL); |
| 640 | |
| 641 | switch (hd->type) { |
| 642 | case UHSOTYPE_DEFAULT: |
| 643 | if (ifnum > __arraycount(uhso_spec_default)) |
| 644 | break; |
| 645 | |
| 646 | *spec = uhso_spec_default[ifnum]; |
| 647 | return 1; |
| 648 | |
| 649 | case UHSOTYPE_ICON321: |
| 650 | if (ifnum > __arraycount(uhso_spec_icon321)) |
| 651 | break; |
| 652 | |
| 653 | *spec = uhso_spec_icon321[ifnum]; |
| 654 | return 1; |
| 655 | |
| 656 | case UHSOTYPE_CONFIG: |
| 657 | req.bmRequestType = UT_READ_VENDOR_DEVICE; |
| 658 | req.bRequest = 0x86; /* "Config Info" */ |
| 659 | USETW(req.wValue, 0); |
| 660 | USETW(req.wIndex, 0); |
| 661 | USETW(req.wLength, sizeof(config)); |
| 662 | |
| 663 | status = usbd_do_request(uaa->uaa_device, &req, config); |
| 664 | if (status != USBD_NORMAL_COMPLETION) |
| 665 | break; |
| 666 | |
| 667 | if (ifnum > __arraycount(config) |
| 668 | || config[ifnum] > __arraycount(uhso_spec_config)) |
| 669 | break; |
| 670 | |
| 671 | *spec = uhso_spec_config[config[ifnum]]; |
| 672 | |
| 673 | /* |
| 674 | * Apparently some modems also have a CRC bug that is |
| 675 | * indicated by ISSET(config[16], __BIT(0)) but we dont |
| 676 | * handle it at this time. |
| 677 | */ |
| 678 | return 1; |
| 679 | |
| 680 | default: |
| 681 | DPRINTF(0, "unknown interface type\n" ); |
| 682 | break; |
| 683 | } |
| 684 | |
| 685 | return 0; |
| 686 | } |
| 687 | |
| 688 | Static usb_endpoint_descriptor_t * |
| 689 | uhso_get_endpoint(struct usbd_interface *ifh, int type, int dir) |
| 690 | { |
| 691 | usb_endpoint_descriptor_t *ed; |
| 692 | uint8_t count, i; |
| 693 | |
| 694 | count = 0; |
| 695 | (void)usbd_endpoint_count(ifh, &count); |
| 696 | |
| 697 | for (i = 0; i < count; i++) { |
| 698 | ed = usbd_interface2endpoint_descriptor(ifh, i); |
| 699 | if (ed != NULL |
| 700 | && UE_GET_XFERTYPE(ed->bmAttributes) == type |
| 701 | && UE_GET_DIR(ed->bEndpointAddress) == dir) |
| 702 | return ed; |
| 703 | } |
| 704 | |
| 705 | return NULL; |
| 706 | } |
| 707 | |
| 708 | |
| 709 | /****************************************************************************** |
| 710 | * |
| 711 | * Multiplexed ports signal with the interrupt endpoint to indicate |
| 712 | * when data is available for reading, and a separate request is made on |
| 713 | * the control endpoint to read or write on each port. The offsets in the |
| 714 | * table below relate to bit numbers in the mux mask, identifying each port. |
| 715 | */ |
| 716 | |
| 717 | Static const int uhso_mux_port[] = { |
| 718 | UHSO_PORT_CONTROL, |
| 719 | UHSO_PORT_APP, |
| 720 | UHSO_PORT_PCSC, |
| 721 | UHSO_PORT_GPS, |
| 722 | UHSO_PORT_APP2, |
| 723 | }; |
| 724 | |
| 725 | Static void |
| 726 | uhso_mux_attach(struct uhso_softc *sc, struct usbd_interface *ifh, int index) |
| 727 | { |
| 728 | usbd_desc_iter_t iter; |
| 729 | const usb_descriptor_t *desc; |
| 730 | usb_endpoint_descriptor_t *ed; |
| 731 | struct usbd_pipe *pipe; |
| 732 | struct uhso_port *hp; |
| 733 | uint8_t *buf; |
| 734 | size_t size; |
| 735 | unsigned int i, mux, flags; |
| 736 | int addr; |
| 737 | usbd_status status; |
| 738 | |
| 739 | ed = uhso_get_endpoint(ifh, UE_INTERRUPT, UE_DIR_IN); |
| 740 | if (ed == NULL) { |
| 741 | aprint_error_dev(sc->sc_dev, "no interrupt endpoint\n" ); |
| 742 | return; |
| 743 | } |
| 744 | addr = ed->bEndpointAddress; |
| 745 | size = UGETW(ed->wMaxPacketSize); |
| 746 | |
| 747 | /* |
| 748 | * There should be an additional "Class Specific" descriptor on |
| 749 | * the mux interface containing a single byte with a bitmask of |
| 750 | * enabled ports. We need to look through the device descriptor |
| 751 | * to find it and the port index is found from the uhso_mux_port |
| 752 | * array, above. |
| 753 | */ |
| 754 | usb_desc_iter_init(sc->sc_udev, &iter); |
| 755 | |
| 756 | /* skip past the current interface descriptor */ |
| 757 | iter.cur = (const uByte *)usbd_get_interface_descriptor(ifh); |
| 758 | desc = usb_desc_iter_next(&iter); |
| 759 | |
| 760 | for (;;) { |
| 761 | desc = usb_desc_iter_next(&iter); |
| 762 | if (desc == NULL |
| 763 | || desc->bDescriptorType == UDESC_INTERFACE) { |
| 764 | mux = 0; |
| 765 | break; /* not found */ |
| 766 | } |
| 767 | |
| 768 | if (desc->bDescriptorType == UDESC_CS_INTERFACE |
| 769 | && desc->bLength == 3) { |
| 770 | mux = ((const uint8_t *)desc)[2]; |
| 771 | break; |
| 772 | } |
| 773 | } |
| 774 | |
| 775 | DPRINTF(1, "addr=%d, size=%zd, mux=0x%02x\n" , addr, size, mux); |
| 776 | |
| 777 | buf = kmem_alloc(size, KM_SLEEP); |
| 778 | status = usbd_open_pipe_intr(ifh, addr, USBD_SHORT_XFER_OK, &pipe, |
| 779 | sc, buf, size, uhso_mux_intr, USBD_DEFAULT_INTERVAL); |
| 780 | |
| 781 | if (status != USBD_NORMAL_COMPLETION) { |
| 782 | aprint_error_dev(sc->sc_dev, |
| 783 | "failed to open interrupt pipe: %s" , usbd_errstr(status)); |
| 784 | |
| 785 | kmem_free(buf, size); |
| 786 | return; |
| 787 | } |
| 788 | |
| 789 | flags = 0; |
| 790 | for (i = 0; i < __arraycount(uhso_mux_port); i++) { |
| 791 | if (ISSET(mux, __BIT(i))) { |
| 792 | if (sc->sc_port[uhso_mux_port[i]] != NULL) { |
| 793 | aprint_error_dev(sc->sc_dev, |
| 794 | "mux port %d is duplicate!\n" , i); |
| 795 | |
| 796 | continue; |
| 797 | } |
| 798 | |
| 799 | hp = kmem_zalloc(sizeof(struct uhso_port), KM_SLEEP); |
| 800 | sc->sc_port[uhso_mux_port[i]] = hp; |
| 801 | |
| 802 | hp->hp_sc = sc; |
| 803 | hp->hp_index = i; |
| 804 | hp->hp_ipipe = pipe; |
| 805 | hp->hp_ibuf = buf; |
| 806 | hp->hp_isize = size; |
| 807 | hp->hp_flags = flags; |
| 808 | hp->hp_abort = uhso_mux_abort; |
| 809 | hp->hp_detach = uhso_mux_detach; |
| 810 | hp->hp_init = uhso_mux_init; |
| 811 | hp->hp_clean = uhso_mux_clean; |
| 812 | hp->hp_write = uhso_mux_write; |
| 813 | hp->hp_write_cb = uhso_tty_write_cb; |
| 814 | hp->hp_read = uhso_mux_read; |
| 815 | hp->hp_read_cb = uhso_tty_read_cb; |
| 816 | hp->hp_control = uhso_mux_control; |
| 817 | hp->hp_wsize = UHSO_MUX_WSIZE; |
| 818 | hp->hp_rsize = UHSO_MUX_RSIZE; |
| 819 | |
| 820 | uhso_tty_attach(hp); |
| 821 | |
| 822 | aprint_normal_dev(sc->sc_dev, |
| 823 | "%s (port %d) attached as mux tty\n" , |
| 824 | uhso_port_name[uhso_mux_port[i]], uhso_mux_port[i]); |
| 825 | |
| 826 | /* |
| 827 | * As the pipe handle is stored in each mux, mark |
| 828 | * secondary references so they don't get released |
| 829 | */ |
| 830 | flags = UHSO_PORT_MUXPIPE; |
| 831 | } |
| 832 | } |
| 833 | |
| 834 | if (flags == 0) { |
| 835 | /* for whatever reasons, nothing was attached */ |
| 836 | usbd_abort_pipe(pipe); |
| 837 | usbd_close_pipe(pipe); |
| 838 | kmem_free(buf, size); |
| 839 | } |
| 840 | } |
| 841 | |
| 842 | Static int |
| 843 | uhso_mux_abort(struct uhso_port *hp) |
| 844 | { |
| 845 | struct uhso_softc *sc = hp->hp_sc; |
| 846 | |
| 847 | DPRINTF(1, "hp=%p\n" , hp); |
| 848 | |
| 849 | if (!ISSET(hp->hp_flags, UHSO_PORT_MUXPIPE)) |
| 850 | usbd_abort_pipe(hp->hp_ipipe); |
| 851 | |
| 852 | usbd_abort_default_pipe(sc->sc_udev); |
| 853 | |
| 854 | return (*hp->hp_clean)(hp); |
| 855 | } |
| 856 | |
| 857 | Static int |
| 858 | uhso_mux_detach(struct uhso_port *hp) |
| 859 | { |
| 860 | |
| 861 | DPRINTF(1, "hp=%p\n" , hp); |
| 862 | |
| 863 | if (!ISSET(hp->hp_flags, UHSO_PORT_MUXPIPE)) { |
| 864 | DPRINTF(1, "interrupt pipe closed\n" ); |
| 865 | usbd_abort_pipe(hp->hp_ipipe); |
| 866 | usbd_close_pipe(hp->hp_ipipe); |
| 867 | kmem_free(hp->hp_ibuf, hp->hp_isize); |
| 868 | } |
| 869 | |
| 870 | uhso_tty_detach(hp); |
| 871 | kmem_free(hp, sizeof(struct uhso_port)); |
| 872 | return 0; |
| 873 | } |
| 874 | |
| 875 | Static int |
| 876 | uhso_mux_init(struct uhso_port *hp) |
| 877 | { |
| 878 | |
| 879 | DPRINTF(1, "hp=%p\n" , hp); |
| 880 | |
| 881 | CLR(hp->hp_flags, UHSO_PORT_MUXBUSY | UHSO_PORT_MUXREADY); |
| 882 | SET(hp->hp_status, TIOCM_DSR | TIOCM_CAR); |
| 883 | |
| 884 | struct uhso_softc *sc = hp->hp_sc; |
| 885 | struct usbd_pipe *pipe0 = usbd_get_pipe0(sc->sc_udev); |
| 886 | int error; |
| 887 | |
| 888 | error = usbd_create_xfer(pipe0, hp->hp_rsize, 0, 0, &hp->hp_rxfer); |
| 889 | if (error) |
| 890 | return error; |
| 891 | |
| 892 | hp->hp_rbuf = usbd_get_buffer(hp->hp_rxfer); |
| 893 | |
| 894 | error = usbd_create_xfer(pipe0, hp->hp_wsize, 0, 0, &hp->hp_wxfer); |
| 895 | if (error) |
| 896 | return error; |
| 897 | |
| 898 | hp->hp_wbuf = usbd_get_buffer(hp->hp_wxfer); |
| 899 | |
| 900 | return 0; |
| 901 | } |
| 902 | |
| 903 | Static int |
| 904 | uhso_mux_clean(struct uhso_port *hp) |
| 905 | { |
| 906 | |
| 907 | DPRINTF(1, "hp=%p\n" , hp); |
| 908 | |
| 909 | CLR(hp->hp_flags, UHSO_PORT_MUXREADY); |
| 910 | CLR(hp->hp_status, TIOCM_DTR | TIOCM_DSR | TIOCM_CAR); |
| 911 | return 0; |
| 912 | } |
| 913 | |
| 914 | Static int |
| 915 | uhso_mux_write(struct uhso_port *hp) |
| 916 | { |
| 917 | struct uhso_softc *sc = hp->hp_sc; |
| 918 | usb_device_request_t req; |
| 919 | usbd_status status; |
| 920 | |
| 921 | DPRINTF(5, "hp=%p, index=%d, wlen=%zd\n" , hp, hp->hp_index, |
| 922 | hp->hp_wlen); |
| 923 | |
| 924 | req.bmRequestType = UT_WRITE_CLASS_INTERFACE; |
| 925 | req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND; |
| 926 | USETW(req.wValue, 0); |
| 927 | USETW(req.wIndex, hp->hp_index); |
| 928 | USETW(req.wLength, hp->hp_wlen); |
| 929 | |
| 930 | usbd_setup_default_xfer(hp->hp_wxfer, sc->sc_udev, hp, USBD_NO_TIMEOUT, |
| 931 | &req, hp->hp_wbuf, hp->hp_wlen, 0, hp->hp_write_cb); |
| 932 | |
| 933 | status = usbd_transfer(hp->hp_wxfer); |
| 934 | if (status != USBD_IN_PROGRESS) { |
| 935 | DPRINTF(0, "non-normal status %s\n" , usbd_errstr(status)); |
| 936 | return EIO; |
| 937 | } |
| 938 | |
| 939 | sc->sc_refcnt++; |
| 940 | return 0; |
| 941 | } |
| 942 | |
| 943 | Static int |
| 944 | uhso_mux_read(struct uhso_port *hp) |
| 945 | { |
| 946 | struct uhso_softc *sc = hp->hp_sc; |
| 947 | usb_device_request_t req; |
| 948 | usbd_status status; |
| 949 | |
| 950 | CLR(hp->hp_flags, UHSO_PORT_MUXBUSY); |
| 951 | |
| 952 | if (hp->hp_rlen == 0 && !ISSET(hp->hp_flags, UHSO_PORT_MUXREADY)) |
| 953 | return 0; |
| 954 | |
| 955 | SET(hp->hp_flags, UHSO_PORT_MUXBUSY); |
| 956 | CLR(hp->hp_flags, UHSO_PORT_MUXREADY); |
| 957 | |
| 958 | DPRINTF(5, "hp=%p, index=%d\n" , hp, hp->hp_index); |
| 959 | |
| 960 | req.bmRequestType = UT_READ_CLASS_INTERFACE; |
| 961 | req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE; |
| 962 | USETW(req.wValue, 0); |
| 963 | USETW(req.wIndex, hp->hp_index); |
| 964 | USETW(req.wLength, hp->hp_rsize); |
| 965 | |
| 966 | usbd_setup_default_xfer(hp->hp_rxfer, sc->sc_udev, hp, USBD_NO_TIMEOUT, |
| 967 | &req, hp->hp_rbuf, hp->hp_rsize, USBD_SHORT_XFER_OK, |
| 968 | hp->hp_read_cb); |
| 969 | |
| 970 | status = usbd_transfer(hp->hp_rxfer); |
| 971 | if (status != USBD_IN_PROGRESS) { |
| 972 | DPRINTF(0, "non-normal status %s\n" , usbd_errstr(status)); |
| 973 | CLR(hp->hp_flags, UHSO_PORT_MUXBUSY); |
| 974 | return EIO; |
| 975 | } |
| 976 | |
| 977 | sc->sc_refcnt++; |
| 978 | return 0; |
| 979 | } |
| 980 | |
| 981 | Static int |
| 982 | uhso_mux_control(struct uhso_port *hp) |
| 983 | { |
| 984 | |
| 985 | DPRINTF(1, "hp=%p\n" , hp); |
| 986 | |
| 987 | return 0; |
| 988 | } |
| 989 | |
| 990 | Static void |
| 991 | uhso_mux_intr(struct usbd_xfer *xfer, void * p, usbd_status status) |
| 992 | { |
| 993 | struct uhso_softc *sc = p; |
| 994 | struct uhso_port *hp; |
| 995 | uint32_t cc; |
| 996 | uint8_t *buf; |
| 997 | unsigned int i; |
| 998 | |
| 999 | if (status != USBD_NORMAL_COMPLETION) { |
| 1000 | DPRINTF(0, "non-normal status %s\n" , usbd_errstr(status)); |
| 1001 | return; |
| 1002 | } |
| 1003 | |
| 1004 | usbd_get_xfer_status(xfer, NULL, (void **)&buf, &cc, NULL); |
| 1005 | if (cc == 0) |
| 1006 | return; |
| 1007 | |
| 1008 | DPRINTF(5, "mux mask 0x%02x, cc=%u\n" , buf[0], cc); |
| 1009 | |
| 1010 | for (i = 0; i < __arraycount(uhso_mux_port); i++) { |
| 1011 | if (!ISSET(buf[0], __BIT(i))) |
| 1012 | continue; |
| 1013 | |
| 1014 | DPRINTF(5, "mux %d port %d\n" , i, uhso_mux_port[i]); |
| 1015 | hp = sc->sc_port[uhso_mux_port[i]]; |
| 1016 | if (hp == NULL |
| 1017 | || hp->hp_tp == NULL |
| 1018 | || !ISSET(hp->hp_status, TIOCM_DTR)) |
| 1019 | continue; |
| 1020 | |
| 1021 | SET(hp->hp_flags, UHSO_PORT_MUXREADY); |
| 1022 | if (ISSET(hp->hp_flags, UHSO_PORT_MUXBUSY)) |
| 1023 | continue; |
| 1024 | |
| 1025 | uhso_mux_read(hp); |
| 1026 | } |
| 1027 | } |
| 1028 | |
| 1029 | |
| 1030 | /****************************************************************************** |
| 1031 | * |
| 1032 | * Bulk ports operate using the bulk endpoints on an interface, though |
| 1033 | * the Modem port (at least) may have an interrupt endpoint that will pass |
| 1034 | * CDC Notification messages with the modem status. |
| 1035 | */ |
| 1036 | |
| 1037 | Static void |
| 1038 | uhso_bulk_attach(struct uhso_softc *sc, struct usbd_interface *ifh, int index) |
| 1039 | { |
| 1040 | usb_endpoint_descriptor_t *ed; |
| 1041 | usb_interface_descriptor_t *id; |
| 1042 | struct uhso_port *hp; |
| 1043 | int in, out; |
| 1044 | |
| 1045 | ed = uhso_get_endpoint(ifh, UE_BULK, UE_DIR_IN); |
| 1046 | if (ed == NULL) { |
| 1047 | aprint_error_dev(sc->sc_dev, "bulk-in endpoint not found\n" ); |
| 1048 | return; |
| 1049 | } |
| 1050 | in = ed->bEndpointAddress; |
| 1051 | |
| 1052 | ed = uhso_get_endpoint(ifh, UE_BULK, UE_DIR_OUT); |
| 1053 | if (ed == NULL) { |
| 1054 | aprint_error_dev(sc->sc_dev, "bulk-out endpoint not found\n" ); |
| 1055 | return; |
| 1056 | } |
| 1057 | out = ed->bEndpointAddress; |
| 1058 | |
| 1059 | id = usbd_get_interface_descriptor(ifh); |
| 1060 | if (id == NULL) { |
| 1061 | aprint_error_dev(sc->sc_dev, |
| 1062 | "interface descriptor not found\n" ); |
| 1063 | return; |
| 1064 | } |
| 1065 | |
| 1066 | DPRINTF(1, "bulk endpoints in=%x, out=%x\n" , in, out); |
| 1067 | |
| 1068 | if (sc->sc_port[index] != NULL) { |
| 1069 | aprint_error_dev(sc->sc_dev, "bulk port %d is duplicate!\n" , |
| 1070 | index); |
| 1071 | |
| 1072 | return; |
| 1073 | } |
| 1074 | |
| 1075 | hp = kmem_zalloc(sizeof(struct uhso_port), KM_SLEEP); |
| 1076 | sc->sc_port[index] = hp; |
| 1077 | |
| 1078 | hp->hp_sc = sc; |
| 1079 | hp->hp_ifh = ifh; |
| 1080 | hp->hp_index = id->bInterfaceNumber; |
| 1081 | hp->hp_raddr = in; |
| 1082 | hp->hp_waddr = out; |
| 1083 | hp->hp_abort = uhso_bulk_abort; |
| 1084 | hp->hp_detach = uhso_bulk_detach; |
| 1085 | hp->hp_init = uhso_bulk_init; |
| 1086 | hp->hp_clean = uhso_bulk_clean; |
| 1087 | hp->hp_write = uhso_bulk_write; |
| 1088 | hp->hp_write_cb = uhso_tty_write_cb; |
| 1089 | hp->hp_read = uhso_bulk_read; |
| 1090 | hp->hp_read_cb = uhso_tty_read_cb; |
| 1091 | hp->hp_control = uhso_bulk_control; |
| 1092 | hp->hp_wsize = UHSO_BULK_WSIZE; |
| 1093 | hp->hp_rsize = UHSO_BULK_RSIZE; |
| 1094 | |
| 1095 | if (index == UHSO_PORT_MODEM) { |
| 1096 | ed = uhso_get_endpoint(ifh, UE_INTERRUPT, UE_DIR_IN); |
| 1097 | if (ed != NULL) { |
| 1098 | hp->hp_iaddr = ed->bEndpointAddress; |
| 1099 | hp->hp_isize = UGETW(ed->wMaxPacketSize); |
| 1100 | } |
| 1101 | } |
| 1102 | |
| 1103 | uhso_tty_attach(hp); |
| 1104 | |
| 1105 | aprint_normal_dev(sc->sc_dev, |
| 1106 | "%s (port %d) attached as bulk tty\n" , |
| 1107 | uhso_port_name[index], index); |
| 1108 | } |
| 1109 | |
| 1110 | Static int |
| 1111 | uhso_bulk_abort(struct uhso_port *hp) |
| 1112 | { |
| 1113 | |
| 1114 | DPRINTF(1, "hp=%p\n" , hp); |
| 1115 | |
| 1116 | return (*hp->hp_clean)(hp); |
| 1117 | } |
| 1118 | |
| 1119 | Static int |
| 1120 | uhso_bulk_detach(struct uhso_port *hp) |
| 1121 | { |
| 1122 | |
| 1123 | DPRINTF(1, "hp=%p\n" , hp); |
| 1124 | |
| 1125 | uhso_tty_detach(hp); |
| 1126 | kmem_free(hp, sizeof(struct uhso_port)); |
| 1127 | return 0; |
| 1128 | } |
| 1129 | |
| 1130 | Static int |
| 1131 | uhso_bulk_init(struct uhso_port *hp) |
| 1132 | { |
| 1133 | usbd_status status; |
| 1134 | |
| 1135 | DPRINTF(1, "hp=%p\n" , hp); |
| 1136 | |
| 1137 | if (hp->hp_isize > 0) { |
| 1138 | hp->hp_ibuf = kmem_alloc(hp->hp_isize, KM_SLEEP); |
| 1139 | |
| 1140 | status = usbd_open_pipe_intr(hp->hp_ifh, hp->hp_iaddr, |
| 1141 | USBD_SHORT_XFER_OK, &hp->hp_ipipe, hp, hp->hp_ibuf, |
| 1142 | hp->hp_isize, uhso_bulk_intr, USBD_DEFAULT_INTERVAL); |
| 1143 | |
| 1144 | if (status != USBD_NORMAL_COMPLETION) { |
| 1145 | DPRINTF(0, "interrupt pipe open failed: %s\n" , |
| 1146 | usbd_errstr(status)); |
| 1147 | |
| 1148 | return EIO; |
| 1149 | } |
| 1150 | } |
| 1151 | |
| 1152 | status = usbd_open_pipe(hp->hp_ifh, hp->hp_raddr, 0, &hp->hp_rpipe); |
| 1153 | if (status != USBD_NORMAL_COMPLETION) { |
| 1154 | DPRINTF(0, "read pipe open failed: %s\n" , usbd_errstr(status)); |
| 1155 | return EIO; |
| 1156 | } |
| 1157 | |
| 1158 | status = usbd_open_pipe(hp->hp_ifh, hp->hp_waddr, 0, &hp->hp_wpipe); |
| 1159 | if (status != USBD_NORMAL_COMPLETION) { |
| 1160 | DPRINTF(0, "write pipe open failed: %s\n" , usbd_errstr(status)); |
| 1161 | return EIO; |
| 1162 | } |
| 1163 | |
| 1164 | int error = usbd_create_xfer(hp->hp_rpipe, hp->hp_rsize, |
| 1165 | USBD_SHORT_XFER_OK, 0, &hp->hp_rxfer); |
| 1166 | if (error) |
| 1167 | return error; |
| 1168 | |
| 1169 | hp->hp_rbuf = usbd_get_buffer(hp->hp_rxfer); |
| 1170 | |
| 1171 | error = usbd_create_xfer(hp->hp_wpipe, hp->hp_wsize, 0, 0, |
| 1172 | &hp->hp_wxfer); |
| 1173 | if (error) |
| 1174 | return error; |
| 1175 | hp->hp_wbuf = usbd_get_buffer(hp->hp_wxfer); |
| 1176 | |
| 1177 | return 0; |
| 1178 | } |
| 1179 | |
| 1180 | Static int |
| 1181 | uhso_bulk_clean(struct uhso_port *hp) |
| 1182 | { |
| 1183 | |
| 1184 | DPRINTF(1, "hp=%p\n" , hp); |
| 1185 | |
| 1186 | if (hp->hp_ipipe != NULL) { |
| 1187 | usbd_abort_pipe(hp->hp_ipipe); |
| 1188 | usbd_close_pipe(hp->hp_ipipe); |
| 1189 | hp->hp_ipipe = NULL; |
| 1190 | } |
| 1191 | |
| 1192 | if (hp->hp_ibuf != NULL) { |
| 1193 | kmem_free(hp->hp_ibuf, hp->hp_isize); |
| 1194 | hp->hp_ibuf = NULL; |
| 1195 | } |
| 1196 | |
| 1197 | if (hp->hp_rpipe != NULL) { |
| 1198 | usbd_abort_pipe(hp->hp_rpipe); |
| 1199 | } |
| 1200 | |
| 1201 | if (hp->hp_wpipe != NULL) { |
| 1202 | usbd_abort_pipe(hp->hp_wpipe); |
| 1203 | } |
| 1204 | |
| 1205 | if (hp->hp_rxfer != NULL) { |
| 1206 | usbd_destroy_xfer(hp->hp_rxfer); |
| 1207 | hp->hp_rxfer = NULL; |
| 1208 | hp->hp_rbuf = NULL; |
| 1209 | } |
| 1210 | |
| 1211 | if (hp->hp_wxfer != NULL) { |
| 1212 | usbd_destroy_xfer(hp->hp_wxfer); |
| 1213 | hp->hp_wxfer = NULL; |
| 1214 | hp->hp_wbuf = NULL; |
| 1215 | } |
| 1216 | |
| 1217 | if (hp->hp_rpipe != NULL) { |
| 1218 | usbd_close_pipe(hp->hp_rpipe); |
| 1219 | hp->hp_rpipe = NULL; |
| 1220 | } |
| 1221 | |
| 1222 | if (hp->hp_wpipe != NULL) { |
| 1223 | usbd_close_pipe(hp->hp_wpipe); |
| 1224 | hp->hp_wpipe = NULL; |
| 1225 | } |
| 1226 | |
| 1227 | return 0; |
| 1228 | } |
| 1229 | |
| 1230 | Static int |
| 1231 | uhso_bulk_write(struct uhso_port *hp) |
| 1232 | { |
| 1233 | struct uhso_softc *sc = hp->hp_sc; |
| 1234 | usbd_status status; |
| 1235 | |
| 1236 | DPRINTF(5, "hp=%p, wlen=%zd\n" , hp, hp->hp_wlen); |
| 1237 | |
| 1238 | usbd_setup_xfer(hp->hp_wxfer, hp, hp->hp_wbuf, hp->hp_wlen, 0, |
| 1239 | USBD_NO_TIMEOUT, hp->hp_write_cb); |
| 1240 | |
| 1241 | status = usbd_transfer(hp->hp_wxfer); |
| 1242 | if (status != USBD_IN_PROGRESS) { |
| 1243 | DPRINTF(0, "non-normal status %s\n" , usbd_errstr(status)); |
| 1244 | return EIO; |
| 1245 | } |
| 1246 | |
| 1247 | sc->sc_refcnt++; |
| 1248 | return 0; |
| 1249 | } |
| 1250 | |
| 1251 | Static int |
| 1252 | uhso_bulk_read(struct uhso_port *hp) |
| 1253 | { |
| 1254 | struct uhso_softc *sc = hp->hp_sc; |
| 1255 | usbd_status status; |
| 1256 | |
| 1257 | DPRINTF(5, "hp=%p\n" , hp); |
| 1258 | |
| 1259 | usbd_setup_xfer(hp->hp_rxfer, hp, hp->hp_rbuf, hp->hp_rsize, |
| 1260 | USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, hp->hp_read_cb); |
| 1261 | |
| 1262 | status = usbd_transfer(hp->hp_rxfer); |
| 1263 | if (status != USBD_IN_PROGRESS) { |
| 1264 | DPRINTF(0, "non-normal status %s\n" , usbd_errstr(status)); |
| 1265 | return EIO; |
| 1266 | } |
| 1267 | |
| 1268 | sc->sc_refcnt++; |
| 1269 | return 0; |
| 1270 | } |
| 1271 | |
| 1272 | Static int |
| 1273 | uhso_bulk_control(struct uhso_port *hp) |
| 1274 | { |
| 1275 | struct uhso_softc *sc = hp->hp_sc; |
| 1276 | usb_device_request_t req; |
| 1277 | usbd_status status; |
| 1278 | int val; |
| 1279 | |
| 1280 | DPRINTF(1, "hp=%p\n" , hp); |
| 1281 | |
| 1282 | if (hp->hp_isize == 0) |
| 1283 | return 0; |
| 1284 | |
| 1285 | val = 0; |
| 1286 | if (ISSET(hp->hp_status, TIOCM_DTR)) |
| 1287 | SET(val, UCDC_LINE_DTR); |
| 1288 | if (ISSET(hp->hp_status, TIOCM_RTS)) |
| 1289 | SET(val, UCDC_LINE_RTS); |
| 1290 | |
| 1291 | req.bmRequestType = UT_WRITE_CLASS_INTERFACE; |
| 1292 | req.bRequest = UCDC_SET_CONTROL_LINE_STATE; |
| 1293 | USETW(req.wValue, val); |
| 1294 | USETW(req.wIndex, hp->hp_index); |
| 1295 | USETW(req.wLength, 0); |
| 1296 | |
| 1297 | sc->sc_refcnt++; |
| 1298 | |
| 1299 | status = usbd_do_request(sc->sc_udev, &req, NULL); |
| 1300 | |
| 1301 | if (--sc->sc_refcnt < 0) |
| 1302 | usb_detach_wakeupold(sc->sc_dev); |
| 1303 | |
| 1304 | if (status != USBD_NORMAL_COMPLETION) { |
| 1305 | DPRINTF(0, "non-normal status %s\n" , usbd_errstr(status)); |
| 1306 | return EIO; |
| 1307 | } |
| 1308 | |
| 1309 | return 0; |
| 1310 | } |
| 1311 | |
| 1312 | Static void |
| 1313 | uhso_bulk_intr(struct usbd_xfer *xfer, void * p, usbd_status status) |
| 1314 | { |
| 1315 | struct uhso_port *hp = p; |
| 1316 | struct tty *tp = hp->hp_tp; |
| 1317 | usb_cdc_notification_t *msg; |
| 1318 | uint32_t cc; |
| 1319 | int s, old; |
| 1320 | |
| 1321 | if (status != USBD_NORMAL_COMPLETION) { |
| 1322 | DPRINTF(0, "non-normal status %s\n" , usbd_errstr(status)); |
| 1323 | return; |
| 1324 | } |
| 1325 | |
| 1326 | usbd_get_xfer_status(xfer, NULL, (void **)&msg, &cc, NULL); |
| 1327 | |
| 1328 | if (cc < UCDC_NOTIFICATION_LENGTH |
| 1329 | || msg->bmRequestType != UCDC_NOTIFICATION |
| 1330 | || msg->bNotification != UCDC_N_SERIAL_STATE |
| 1331 | || UGETW(msg->wValue) != 0 |
| 1332 | || UGETW(msg->wIndex) != hp->hp_index |
| 1333 | || UGETW(msg->wLength) < 1) |
| 1334 | return; |
| 1335 | |
| 1336 | DPRINTF(5, "state=%02x\n" , msg->data[0]); |
| 1337 | |
| 1338 | old = hp->hp_status; |
| 1339 | CLR(hp->hp_status, TIOCM_RNG | TIOCM_DSR | TIOCM_CAR); |
| 1340 | if (ISSET(msg->data[0], UCDC_N_SERIAL_RI)) |
| 1341 | SET(hp->hp_status, TIOCM_RNG); |
| 1342 | if (ISSET(msg->data[0], UCDC_N_SERIAL_DSR)) |
| 1343 | SET(hp->hp_status, TIOCM_DSR); |
| 1344 | if (ISSET(msg->data[0], UCDC_N_SERIAL_DCD)) |
| 1345 | SET(hp->hp_status, TIOCM_CAR); |
| 1346 | |
| 1347 | if (ISSET(hp->hp_status ^ old, TIOCM_CAR)) { |
| 1348 | s = spltty(); |
| 1349 | tp->t_linesw->l_modem(tp, ISSET(hp->hp_status, TIOCM_CAR)); |
| 1350 | splx(s); |
| 1351 | } |
| 1352 | |
| 1353 | if (ISSET((hp->hp_status ^ old), TIOCM_RNG | TIOCM_DSR | TIOCM_CAR)) |
| 1354 | DPRINTF(1, "RNG %s, DSR %s, DCD %s\n" , |
| 1355 | (ISSET(hp->hp_status, TIOCM_RNG) ? "on" : "off" ), |
| 1356 | (ISSET(hp->hp_status, TIOCM_DSR) ? "on" : "off" ), |
| 1357 | (ISSET(hp->hp_status, TIOCM_CAR) ? "on" : "off" )); |
| 1358 | } |
| 1359 | |
| 1360 | |
| 1361 | /****************************************************************************** |
| 1362 | * |
| 1363 | * TTY management |
| 1364 | * |
| 1365 | */ |
| 1366 | |
| 1367 | Static void |
| 1368 | uhso_tty_attach(struct uhso_port *hp) |
| 1369 | { |
| 1370 | struct tty *tp; |
| 1371 | |
| 1372 | tp = tty_alloc(); |
| 1373 | tp->t_oproc = uhso_tty_start; |
| 1374 | tp->t_param = uhso_tty_param; |
| 1375 | |
| 1376 | hp->hp_tp = tp; |
| 1377 | tty_attach(tp); |
| 1378 | |
| 1379 | DPRINTF(1, "hp=%p, tp=%p\n" , hp, tp); |
| 1380 | } |
| 1381 | |
| 1382 | Static void |
| 1383 | uhso_tty_detach(struct uhso_port *hp) |
| 1384 | { |
| 1385 | |
| 1386 | DPRINTF(1, "hp=%p\n" , hp); |
| 1387 | |
| 1388 | uhso_tty_clean(hp); |
| 1389 | |
| 1390 | tty_detach(hp->hp_tp); |
| 1391 | tty_free(hp->hp_tp); |
| 1392 | hp->hp_tp = NULL; |
| 1393 | } |
| 1394 | |
| 1395 | Static void |
| 1396 | uhso_tty_write_cb(struct usbd_xfer *xfer, void * p, usbd_status status) |
| 1397 | { |
| 1398 | struct uhso_port *hp = p; |
| 1399 | struct uhso_softc *sc = hp->hp_sc; |
| 1400 | struct tty *tp = hp->hp_tp; |
| 1401 | uint32_t cc; |
| 1402 | int s; |
| 1403 | |
| 1404 | if (--sc->sc_refcnt < 0) |
| 1405 | usb_detach_wakeupold(sc->sc_dev); |
| 1406 | |
| 1407 | if (status != USBD_NORMAL_COMPLETION) { |
| 1408 | DPRINTF(0, "non-normal status %s\n" , usbd_errstr(status)); |
| 1409 | |
| 1410 | if (status == USBD_STALLED && hp->hp_wpipe != NULL) |
| 1411 | usbd_clear_endpoint_stall_async(hp->hp_wpipe); |
| 1412 | else |
| 1413 | return; |
| 1414 | } else { |
| 1415 | usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL); |
| 1416 | |
| 1417 | DPRINTF(5, "wrote %d bytes (of %zd)\n" , cc, hp->hp_wlen); |
| 1418 | if (cc != hp->hp_wlen) |
| 1419 | DPRINTF(0, "cc=%u, wlen=%zd\n" , cc, hp->hp_wlen); |
| 1420 | } |
| 1421 | |
| 1422 | s = spltty(); |
| 1423 | CLR(tp->t_state, TS_BUSY); |
| 1424 | tp->t_linesw->l_start(tp); |
| 1425 | splx(s); |
| 1426 | } |
| 1427 | |
| 1428 | Static void |
| 1429 | uhso_tty_read_cb(struct usbd_xfer *xfer, void * p, usbd_status status) |
| 1430 | { |
| 1431 | struct uhso_port *hp = p; |
| 1432 | struct uhso_softc *sc = hp->hp_sc; |
| 1433 | struct tty *tp = hp->hp_tp; |
| 1434 | uint8_t *cp; |
| 1435 | uint32_t cc; |
| 1436 | int s; |
| 1437 | |
| 1438 | if (--sc->sc_refcnt < 0) |
| 1439 | usb_detach_wakeupold(sc->sc_dev); |
| 1440 | |
| 1441 | if (status != USBD_NORMAL_COMPLETION) { |
| 1442 | DPRINTF(0, "non-normal status: %s\n" , usbd_errstr(status)); |
| 1443 | |
| 1444 | if (status == USBD_STALLED && hp->hp_rpipe != NULL) |
| 1445 | usbd_clear_endpoint_stall_async(hp->hp_rpipe); |
| 1446 | else |
| 1447 | return; |
| 1448 | |
| 1449 | hp->hp_rlen = 0; |
| 1450 | } else { |
| 1451 | usbd_get_xfer_status(xfer, NULL, (void **)&cp, &cc, NULL); |
| 1452 | |
| 1453 | hp->hp_rlen = cc; |
| 1454 | DPRINTF(5, "read %d bytes\n" , cc); |
| 1455 | |
| 1456 | s = spltty(); |
| 1457 | while (cc > 0) { |
| 1458 | if (tp->t_linesw->l_rint(*cp++, tp) == -1) { |
| 1459 | DPRINTF(0, "lost %d bytes\n" , cc); |
| 1460 | break; |
| 1461 | } |
| 1462 | |
| 1463 | cc--; |
| 1464 | } |
| 1465 | splx(s); |
| 1466 | } |
| 1467 | |
| 1468 | (*hp->hp_read)(hp); |
| 1469 | } |
| 1470 | |
| 1471 | |
| 1472 | /****************************************************************************** |
| 1473 | * |
| 1474 | * TTY subsystem |
| 1475 | * |
| 1476 | */ |
| 1477 | |
| 1478 | int |
| 1479 | uhso_tty_open(dev_t dev, int flag, int mode, struct lwp *l) |
| 1480 | { |
| 1481 | struct uhso_softc *sc; |
| 1482 | struct uhso_port *hp; |
| 1483 | struct tty *tp; |
| 1484 | int error, s; |
| 1485 | |
| 1486 | DPRINTF(1, "unit %d port %d\n" , UHSOUNIT(dev), UHSOPORT(dev)); |
| 1487 | |
| 1488 | sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev)); |
| 1489 | if (sc == NULL |
| 1490 | || !device_is_active(sc->sc_dev) |
| 1491 | || UHSOPORT(dev) >= UHSO_PORT_MAX) |
| 1492 | return ENXIO; |
| 1493 | |
| 1494 | hp = sc->sc_port[UHSOPORT(dev)]; |
| 1495 | if (hp == NULL || hp->hp_tp == NULL) |
| 1496 | return ENXIO; |
| 1497 | |
| 1498 | tp = hp->hp_tp; |
| 1499 | if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp)) |
| 1500 | return EBUSY; |
| 1501 | |
| 1502 | error = 0; |
| 1503 | s = spltty(); |
| 1504 | if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) { |
| 1505 | tp->t_dev = dev; |
| 1506 | error = uhso_tty_init(hp); |
| 1507 | } |
| 1508 | splx(s); |
| 1509 | |
| 1510 | if (error == 0) { |
| 1511 | error = ttyopen(tp, UHSODIALOUT(dev), ISSET(flag, O_NONBLOCK)); |
| 1512 | if (error == 0) { |
| 1513 | error = tp->t_linesw->l_open(dev, tp); |
| 1514 | } |
| 1515 | } |
| 1516 | |
| 1517 | if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) |
| 1518 | uhso_tty_clean(hp); |
| 1519 | |
| 1520 | DPRINTF(1, "sc=%p, hp=%p, tp=%p, error=%d\n" , sc, hp, tp, error); |
| 1521 | |
| 1522 | return error; |
| 1523 | } |
| 1524 | |
| 1525 | Static int |
| 1526 | uhso_tty_init(struct uhso_port *hp) |
| 1527 | { |
| 1528 | struct tty *tp = hp->hp_tp; |
| 1529 | struct termios t; |
| 1530 | int error; |
| 1531 | |
| 1532 | DPRINTF(1, "sc=%p, hp=%p, tp=%p\n" , sc, hp, tp); |
| 1533 | |
| 1534 | /* |
| 1535 | * Initialize the termios status to the defaults. Add in the |
| 1536 | * sticky bits from TIOCSFLAGS. |
| 1537 | */ |
| 1538 | t.c_ispeed = 0; |
| 1539 | t.c_ospeed = TTYDEF_SPEED; |
| 1540 | t.c_cflag = TTYDEF_CFLAG; |
| 1541 | if (ISSET(hp->hp_swflags, TIOCFLAG_CLOCAL)) |
| 1542 | SET(t.c_cflag, CLOCAL); |
| 1543 | if (ISSET(hp->hp_swflags, TIOCFLAG_CRTSCTS)) |
| 1544 | SET(t.c_cflag, CRTSCTS); |
| 1545 | if (ISSET(hp->hp_swflags, TIOCFLAG_MDMBUF)) |
| 1546 | SET(t.c_cflag, MDMBUF); |
| 1547 | |
| 1548 | /* Ensure uhso_tty_param() will do something. */ |
| 1549 | tp->t_ospeed = 0; |
| 1550 | (void)uhso_tty_param(tp, &t); |
| 1551 | |
| 1552 | tp->t_iflag = TTYDEF_IFLAG; |
| 1553 | tp->t_oflag = TTYDEF_OFLAG; |
| 1554 | tp->t_lflag = TTYDEF_LFLAG; |
| 1555 | ttychars(tp); |
| 1556 | ttsetwater(tp); |
| 1557 | |
| 1558 | hp->hp_status = 0; |
| 1559 | error = (*hp->hp_init)(hp); |
| 1560 | if (error != 0) |
| 1561 | return error; |
| 1562 | |
| 1563 | /* |
| 1564 | * Turn on DTR. We must always do this, even if carrier is not |
| 1565 | * present, because otherwise we'd have to use TIOCSDTR |
| 1566 | * immediately after setting CLOCAL, which applications do not |
| 1567 | * expect. We always assert DTR while the port is open |
| 1568 | * unless explicitly requested to deassert it. Ditto RTS. |
| 1569 | */ |
| 1570 | uhso_tty_control(hp, TIOCMBIS, TIOCM_DTR | TIOCM_RTS); |
| 1571 | |
| 1572 | /* and start reading */ |
| 1573 | error = (*hp->hp_read)(hp); |
| 1574 | if (error != 0) |
| 1575 | return error; |
| 1576 | |
| 1577 | return 0; |
| 1578 | } |
| 1579 | |
| 1580 | int |
| 1581 | uhso_tty_close(dev_t dev, int flag, int mode, struct lwp *l) |
| 1582 | { |
| 1583 | struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev)); |
| 1584 | struct uhso_port *hp = sc->sc_port[UHSOPORT(dev)]; |
| 1585 | struct tty *tp = hp->hp_tp; |
| 1586 | |
| 1587 | if (!ISSET(tp->t_state, TS_ISOPEN)) |
| 1588 | return 0; |
| 1589 | |
| 1590 | DPRINTF(1, "sc=%p, hp=%p, tp=%p\n" , sc, hp, tp); |
| 1591 | |
| 1592 | sc->sc_refcnt++; |
| 1593 | |
| 1594 | tp->t_linesw->l_close(tp, flag); |
| 1595 | ttyclose(tp); |
| 1596 | |
| 1597 | if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) |
| 1598 | uhso_tty_clean(hp); |
| 1599 | |
| 1600 | if (--sc->sc_refcnt < 0) |
| 1601 | usb_detach_wakeupold(sc->sc_dev); |
| 1602 | |
| 1603 | return 0; |
| 1604 | } |
| 1605 | |
| 1606 | Static void |
| 1607 | uhso_tty_clean(struct uhso_port *hp) |
| 1608 | { |
| 1609 | |
| 1610 | DPRINTF(1, "hp=%p\n" , hp); |
| 1611 | |
| 1612 | if (ISSET(hp->hp_status, TIOCM_DTR) |
| 1613 | && ISSET(hp->hp_tp->t_cflag, HUPCL)) |
| 1614 | uhso_tty_control(hp, TIOCMBIC, TIOCM_DTR); |
| 1615 | |
| 1616 | (*hp->hp_clean)(hp); |
| 1617 | |
| 1618 | if (hp->hp_rxfer != NULL) { |
| 1619 | usbd_destroy_xfer(hp->hp_rxfer); |
| 1620 | hp->hp_rxfer = NULL; |
| 1621 | hp->hp_rbuf = NULL; |
| 1622 | } |
| 1623 | |
| 1624 | if (hp->hp_wxfer != NULL) { |
| 1625 | usbd_destroy_xfer(hp->hp_wxfer); |
| 1626 | hp->hp_wxfer = NULL; |
| 1627 | hp->hp_wbuf = NULL; |
| 1628 | } |
| 1629 | } |
| 1630 | |
| 1631 | int |
| 1632 | uhso_tty_read(dev_t dev, struct uio *uio, int flag) |
| 1633 | { |
| 1634 | struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev)); |
| 1635 | struct uhso_port *hp = sc->sc_port[UHSOPORT(dev)]; |
| 1636 | struct tty *tp = hp->hp_tp; |
| 1637 | int error; |
| 1638 | |
| 1639 | if (!device_is_active(sc->sc_dev)) |
| 1640 | return EIO; |
| 1641 | |
| 1642 | DPRINTF(5, "sc=%p, hp=%p, tp=%p\n" , sc, hp, tp); |
| 1643 | |
| 1644 | sc->sc_refcnt++; |
| 1645 | |
| 1646 | error = tp->t_linesw->l_read(tp, uio, flag); |
| 1647 | |
| 1648 | if (--sc->sc_refcnt < 0) |
| 1649 | usb_detach_wakeupold(sc->sc_dev); |
| 1650 | |
| 1651 | return error; |
| 1652 | } |
| 1653 | |
| 1654 | int |
| 1655 | uhso_tty_write(dev_t dev, struct uio *uio, int flag) |
| 1656 | { |
| 1657 | struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev)); |
| 1658 | struct uhso_port *hp = sc->sc_port[UHSOPORT(dev)]; |
| 1659 | struct tty *tp = hp->hp_tp; |
| 1660 | int error; |
| 1661 | |
| 1662 | if (!device_is_active(sc->sc_dev)) |
| 1663 | return EIO; |
| 1664 | |
| 1665 | DPRINTF(5, "sc=%p, hp=%p, tp=%p\n" , sc, hp, tp); |
| 1666 | |
| 1667 | sc->sc_refcnt++; |
| 1668 | |
| 1669 | error = tp->t_linesw->l_write(tp, uio, flag); |
| 1670 | |
| 1671 | if (--sc->sc_refcnt < 0) |
| 1672 | usb_detach_wakeupold(sc->sc_dev); |
| 1673 | |
| 1674 | return error; |
| 1675 | } |
| 1676 | |
| 1677 | int |
| 1678 | uhso_tty_ioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) |
| 1679 | { |
| 1680 | struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev)); |
| 1681 | struct uhso_port *hp = sc->sc_port[UHSOPORT(dev)]; |
| 1682 | int error; |
| 1683 | |
| 1684 | if (!device_is_active(sc->sc_dev)) |
| 1685 | return EIO; |
| 1686 | |
| 1687 | DPRINTF(1, "sc=%p, hp=%p\n" , sc, hp); |
| 1688 | |
| 1689 | sc->sc_refcnt++; |
| 1690 | |
| 1691 | error = uhso_tty_do_ioctl(hp, cmd, data, flag, l); |
| 1692 | |
| 1693 | if (--sc->sc_refcnt < 0) |
| 1694 | usb_detach_wakeupold(sc->sc_dev); |
| 1695 | |
| 1696 | return error; |
| 1697 | } |
| 1698 | |
| 1699 | Static int |
| 1700 | uhso_tty_do_ioctl(struct uhso_port *hp, u_long cmd, void *data, int flag, |
| 1701 | struct lwp *l) |
| 1702 | { |
| 1703 | struct tty *tp = hp->hp_tp; |
| 1704 | int error, s; |
| 1705 | |
| 1706 | error = tp->t_linesw->l_ioctl(tp, cmd, data, flag, l); |
| 1707 | if (error != EPASSTHROUGH) |
| 1708 | return error; |
| 1709 | |
| 1710 | error = ttioctl(tp, cmd, data, flag, l); |
| 1711 | if (error != EPASSTHROUGH) |
| 1712 | return error; |
| 1713 | |
| 1714 | error = 0; |
| 1715 | |
| 1716 | s = spltty(); |
| 1717 | |
| 1718 | switch (cmd) { |
| 1719 | case TIOCSDTR: |
| 1720 | error = uhso_tty_control(hp, TIOCMBIS, TIOCM_DTR); |
| 1721 | break; |
| 1722 | |
| 1723 | case TIOCCDTR: |
| 1724 | error = uhso_tty_control(hp, TIOCMBIC, TIOCM_DTR); |
| 1725 | break; |
| 1726 | |
| 1727 | case TIOCGFLAGS: |
| 1728 | *(int *)data = hp->hp_swflags; |
| 1729 | break; |
| 1730 | |
| 1731 | case TIOCSFLAGS: |
| 1732 | error = kauth_authorize_device_tty(l->l_cred, |
| 1733 | KAUTH_DEVICE_TTY_PRIVSET, tp); |
| 1734 | |
| 1735 | if (error) |
| 1736 | break; |
| 1737 | |
| 1738 | hp->hp_swflags = *(int *)data; |
| 1739 | break; |
| 1740 | |
| 1741 | case TIOCMSET: |
| 1742 | case TIOCMBIS: |
| 1743 | case TIOCMBIC: |
| 1744 | error = uhso_tty_control(hp, cmd, *(int *)data); |
| 1745 | break; |
| 1746 | |
| 1747 | case TIOCMGET: |
| 1748 | *(int *)data = hp->hp_status; |
| 1749 | break; |
| 1750 | |
| 1751 | default: |
| 1752 | error = EPASSTHROUGH; |
| 1753 | break; |
| 1754 | } |
| 1755 | |
| 1756 | splx(s); |
| 1757 | |
| 1758 | return error; |
| 1759 | } |
| 1760 | |
| 1761 | /* this is called with tty_lock held */ |
| 1762 | void |
| 1763 | uhso_tty_stop(struct tty *tp, int flag) |
| 1764 | { |
| 1765 | #if 0 |
| 1766 | struct uhso_softc *sc = device_lookup_private(&uhso_cd, |
| 1767 | UHSOUNIT(tp->t_dev)); |
| 1768 | struct uhso_port *hp = sc->sc_port[UHSOPORT(tp->t_dev)]; |
| 1769 | #endif |
| 1770 | } |
| 1771 | |
| 1772 | struct tty * |
| 1773 | uhso_tty_tty(dev_t dev) |
| 1774 | { |
| 1775 | struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev)); |
| 1776 | struct uhso_port *hp = sc->sc_port[UHSOPORT(dev)]; |
| 1777 | |
| 1778 | return hp->hp_tp; |
| 1779 | } |
| 1780 | |
| 1781 | int |
| 1782 | uhso_tty_poll(dev_t dev, int events, struct lwp *l) |
| 1783 | { |
| 1784 | struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev)); |
| 1785 | struct uhso_port *hp = sc->sc_port[UHSOPORT(dev)]; |
| 1786 | struct tty *tp = hp->hp_tp; |
| 1787 | int revents; |
| 1788 | |
| 1789 | if (!device_is_active(sc->sc_dev)) |
| 1790 | return POLLHUP; |
| 1791 | |
| 1792 | sc->sc_refcnt++; |
| 1793 | |
| 1794 | revents = tp->t_linesw->l_poll(tp, events, l); |
| 1795 | |
| 1796 | if (--sc->sc_refcnt < 0) |
| 1797 | usb_detach_wakeupold(sc->sc_dev); |
| 1798 | |
| 1799 | return revents; |
| 1800 | } |
| 1801 | |
| 1802 | Static int |
| 1803 | uhso_tty_param(struct tty *tp, struct termios *t) |
| 1804 | { |
| 1805 | struct uhso_softc *sc = device_lookup_private(&uhso_cd, |
| 1806 | UHSOUNIT(tp->t_dev)); |
| 1807 | struct uhso_port *hp = sc->sc_port[UHSOPORT(tp->t_dev)]; |
| 1808 | |
| 1809 | if (!device_is_active(sc->sc_dev)) |
| 1810 | return EIO; |
| 1811 | |
| 1812 | DPRINTF(1, "hp=%p, tp=%p, termios iflag=%x, oflag=%x, cflag=%x\n" , |
| 1813 | hp, tp, t->c_iflag, t->c_oflag, t->c_cflag); |
| 1814 | |
| 1815 | /* Check requested parameters. */ |
| 1816 | if (t->c_ispeed != 0 |
| 1817 | && t->c_ispeed != t->c_ospeed) |
| 1818 | return EINVAL; |
| 1819 | |
| 1820 | /* force CLOCAL and !HUPCL for console */ |
| 1821 | if (ISSET(hp->hp_swflags, TIOCFLAG_SOFTCAR)) { |
| 1822 | SET(t->c_cflag, CLOCAL); |
| 1823 | CLR(t->c_cflag, HUPCL); |
| 1824 | } |
| 1825 | |
| 1826 | /* If there were no changes, don't do anything. */ |
| 1827 | if (tp->t_ospeed == t->c_ospeed |
| 1828 | && tp->t_cflag == t->c_cflag) |
| 1829 | return 0; |
| 1830 | |
| 1831 | tp->t_ispeed = 0; |
| 1832 | tp->t_ospeed = t->c_ospeed; |
| 1833 | tp->t_cflag = t->c_cflag; |
| 1834 | |
| 1835 | /* update tty layers idea of carrier bit */ |
| 1836 | tp->t_linesw->l_modem(tp, ISSET(hp->hp_status, TIOCM_CAR)); |
| 1837 | return 0; |
| 1838 | } |
| 1839 | |
| 1840 | /* this is called with tty_lock held */ |
| 1841 | Static void |
| 1842 | uhso_tty_start(struct tty *tp) |
| 1843 | { |
| 1844 | struct uhso_softc *sc = device_lookup_private(&uhso_cd, |
| 1845 | UHSOUNIT(tp->t_dev)); |
| 1846 | struct uhso_port *hp = sc->sc_port[UHSOPORT(tp->t_dev)]; |
| 1847 | int s; |
| 1848 | |
| 1849 | if (!device_is_active(sc->sc_dev)) |
| 1850 | return; |
| 1851 | |
| 1852 | s = spltty(); |
| 1853 | |
| 1854 | if (!ISSET(tp->t_state, TS_BUSY | TS_TIMEOUT | TS_TTSTOP) |
| 1855 | && ttypull(tp) != 0) { |
| 1856 | hp->hp_wlen = q_to_b(&tp->t_outq, hp->hp_wbuf, hp->hp_wsize); |
| 1857 | if (hp->hp_wlen > 0) { |
| 1858 | SET(tp->t_state, TS_BUSY); |
| 1859 | (*hp->hp_write)(hp); |
| 1860 | } |
| 1861 | } |
| 1862 | |
| 1863 | splx(s); |
| 1864 | } |
| 1865 | |
| 1866 | Static int |
| 1867 | uhso_tty_control(struct uhso_port *hp, u_long cmd, int bits) |
| 1868 | { |
| 1869 | |
| 1870 | bits &= (TIOCM_DTR | TIOCM_RTS); |
| 1871 | DPRINTF(1, "cmd %s, DTR=%d, RTS=%d\n" , |
| 1872 | (cmd == TIOCMBIC ? "BIC" : (cmd == TIOCMBIS ? "BIS" : "SET" )), |
| 1873 | (bits & TIOCM_DTR) ? 1 : 0, |
| 1874 | (bits & TIOCM_RTS) ? 1 : 0); |
| 1875 | |
| 1876 | switch (cmd) { |
| 1877 | case TIOCMBIC: |
| 1878 | CLR(hp->hp_status, bits); |
| 1879 | break; |
| 1880 | |
| 1881 | case TIOCMBIS: |
| 1882 | SET(hp->hp_status, bits); |
| 1883 | break; |
| 1884 | |
| 1885 | case TIOCMSET: |
| 1886 | CLR(hp->hp_status, TIOCM_DTR | TIOCM_RTS); |
| 1887 | SET(hp->hp_status, bits); |
| 1888 | break; |
| 1889 | } |
| 1890 | |
| 1891 | return (*hp->hp_control)(hp); |
| 1892 | } |
| 1893 | |
| 1894 | |
| 1895 | /****************************************************************************** |
| 1896 | * |
| 1897 | * Network Interface |
| 1898 | * |
| 1899 | */ |
| 1900 | |
| 1901 | Static void |
| 1902 | uhso_ifnet_attach(struct uhso_softc *sc, struct usbd_interface *ifh, int index) |
| 1903 | { |
| 1904 | usb_endpoint_descriptor_t *ed; |
| 1905 | struct uhso_port *hp; |
| 1906 | struct ifnet *ifp; |
| 1907 | int in, out; |
| 1908 | |
| 1909 | ed = uhso_get_endpoint(ifh, UE_BULK, UE_DIR_IN); |
| 1910 | if (ed == NULL) { |
| 1911 | aprint_error_dev(sc->sc_dev, |
| 1912 | "could not find bulk-in endpoint\n" ); |
| 1913 | |
| 1914 | return; |
| 1915 | } |
| 1916 | in = ed->bEndpointAddress; |
| 1917 | |
| 1918 | ed = uhso_get_endpoint(ifh, UE_BULK, UE_DIR_OUT); |
| 1919 | if (ed == NULL) { |
| 1920 | aprint_error_dev(sc->sc_dev, |
| 1921 | "could not find bulk-out endpoint\n" ); |
| 1922 | |
| 1923 | return; |
| 1924 | } |
| 1925 | out = ed->bEndpointAddress; |
| 1926 | |
| 1927 | DPRINTF(1, "in=%d, out=%d\n" , in, out); |
| 1928 | |
| 1929 | if (sc->sc_port[index] != NULL) { |
| 1930 | aprint_error_dev(sc->sc_dev, |
| 1931 | "ifnet port %d is duplicate!\n" , index); |
| 1932 | |
| 1933 | return; |
| 1934 | } |
| 1935 | |
| 1936 | hp = kmem_zalloc(sizeof(struct uhso_port), KM_SLEEP); |
| 1937 | sc->sc_port[index] = hp; |
| 1938 | |
| 1939 | ifp = if_alloc(IFT_IP); |
| 1940 | strlcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); |
| 1941 | ifp->if_softc = hp; |
| 1942 | ifp->if_mtu = UHSO_IFNET_MTU; |
| 1943 | ifp->if_dlt = DLT_RAW; |
| 1944 | ifp->if_type = IFT_IP; |
| 1945 | ifp->if_flags = IFF_NOARP | IFF_SIMPLEX; |
| 1946 | ifp->if_ioctl = uhso_ifnet_ioctl; |
| 1947 | ifp->if_start = uhso_ifnet_start; |
| 1948 | ifp->if_output = uhso_ifnet_output; |
| 1949 | IFQ_SET_READY(&ifp->if_snd); |
| 1950 | |
| 1951 | hp->hp_sc = sc; |
| 1952 | hp->hp_ifp = ifp; |
| 1953 | hp->hp_ifh = ifh; |
| 1954 | hp->hp_raddr = in; |
| 1955 | hp->hp_waddr = out; |
| 1956 | hp->hp_abort = uhso_ifnet_abort; |
| 1957 | hp->hp_detach = uhso_ifnet_detach; |
| 1958 | hp->hp_init = uhso_bulk_init; |
| 1959 | hp->hp_clean = uhso_bulk_clean; |
| 1960 | hp->hp_write = uhso_bulk_write; |
| 1961 | hp->hp_write_cb = uhso_ifnet_write_cb; |
| 1962 | hp->hp_read = uhso_bulk_read; |
| 1963 | hp->hp_read_cb = uhso_ifnet_read_cb; |
| 1964 | hp->hp_wsize = MCLBYTES; |
| 1965 | hp->hp_rsize = MCLBYTES; |
| 1966 | |
| 1967 | if_attach(ifp); |
| 1968 | if_alloc_sadl(ifp); |
| 1969 | bpf_attach(ifp, DLT_RAW, 0); |
| 1970 | |
| 1971 | aprint_normal_dev(sc->sc_dev, "%s (port %d) attached as ifnet\n" , |
| 1972 | uhso_port_name[index], index); |
| 1973 | } |
| 1974 | |
| 1975 | Static int |
| 1976 | uhso_ifnet_abort(struct uhso_port *hp) |
| 1977 | { |
| 1978 | struct ifnet *ifp = hp->hp_ifp; |
| 1979 | |
| 1980 | /* All ifnet IO will abort when IFF_RUNNING is not set */ |
| 1981 | CLR(ifp->if_flags, IFF_RUNNING); |
| 1982 | |
| 1983 | return (*hp->hp_clean)(hp); |
| 1984 | } |
| 1985 | |
| 1986 | Static int |
| 1987 | uhso_ifnet_detach(struct uhso_port *hp) |
| 1988 | { |
| 1989 | struct ifnet *ifp = hp->hp_ifp; |
| 1990 | int s; |
| 1991 | |
| 1992 | s = splnet(); |
| 1993 | bpf_detach(ifp); |
| 1994 | if_detach(ifp); |
| 1995 | splx(s); |
| 1996 | |
| 1997 | kmem_free(hp, sizeof(struct uhso_port)); |
| 1998 | return 0; |
| 1999 | } |
| 2000 | |
| 2001 | Static void |
| 2002 | uhso_ifnet_write_cb(struct usbd_xfer *xfer, void * p, usbd_status status) |
| 2003 | { |
| 2004 | struct uhso_port *hp = p; |
| 2005 | struct uhso_softc *sc= hp->hp_sc; |
| 2006 | struct ifnet *ifp = hp->hp_ifp; |
| 2007 | uint32_t cc; |
| 2008 | int s; |
| 2009 | |
| 2010 | if (--sc->sc_refcnt < 0) |
| 2011 | usb_detach_wakeupold(sc->sc_dev); |
| 2012 | |
| 2013 | if (!ISSET(ifp->if_flags, IFF_RUNNING)) |
| 2014 | return; |
| 2015 | |
| 2016 | if (status != USBD_NORMAL_COMPLETION) { |
| 2017 | DPRINTF(0, "non-normal status %s\n" , usbd_errstr(status)); |
| 2018 | |
| 2019 | if (status == USBD_STALLED && hp->hp_wpipe != NULL) |
| 2020 | usbd_clear_endpoint_stall_async(hp->hp_wpipe); |
| 2021 | else |
| 2022 | return; |
| 2023 | |
| 2024 | ifp->if_oerrors++; |
| 2025 | } else { |
| 2026 | usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL); |
| 2027 | DPRINTF(5, "wrote %d bytes (of %zd)\n" , cc, hp->hp_wlen); |
| 2028 | |
| 2029 | if (cc != hp->hp_wlen) |
| 2030 | DPRINTF(0, "cc=%u, wlen=%zd\n" , cc, hp->hp_wlen); |
| 2031 | |
| 2032 | ifp->if_opackets++; |
| 2033 | } |
| 2034 | |
| 2035 | s = splnet(); |
| 2036 | CLR(ifp->if_flags, IFF_OACTIVE); |
| 2037 | ifp->if_start(ifp); |
| 2038 | splx(s); |
| 2039 | } |
| 2040 | |
| 2041 | Static void |
| 2042 | uhso_ifnet_read_cb(struct usbd_xfer *xfer, void * p, |
| 2043 | usbd_status status) |
| 2044 | { |
| 2045 | struct uhso_port *hp = p; |
| 2046 | struct uhso_softc *sc= hp->hp_sc; |
| 2047 | struct ifnet *ifp = hp->hp_ifp; |
| 2048 | void *cp; |
| 2049 | uint32_t cc; |
| 2050 | |
| 2051 | if (--sc->sc_refcnt < 0) |
| 2052 | usb_detach_wakeupold(sc->sc_dev); |
| 2053 | |
| 2054 | if (!ISSET(ifp->if_flags, IFF_RUNNING)) |
| 2055 | return; |
| 2056 | |
| 2057 | if (status != USBD_NORMAL_COMPLETION) { |
| 2058 | DPRINTF(0, "non-normal status: %s\n" , usbd_errstr(status)); |
| 2059 | |
| 2060 | if (status == USBD_STALLED && hp->hp_rpipe != NULL) |
| 2061 | usbd_clear_endpoint_stall_async(hp->hp_rpipe); |
| 2062 | else |
| 2063 | return; |
| 2064 | |
| 2065 | ifp->if_ierrors++; |
| 2066 | hp->hp_rlen = 0; |
| 2067 | } else { |
| 2068 | usbd_get_xfer_status(xfer, NULL, (void **)&cp, &cc, NULL); |
| 2069 | |
| 2070 | hp->hp_rlen = cc; |
| 2071 | DPRINTF(5, "read %d bytes\n" , cc); |
| 2072 | |
| 2073 | uhso_ifnet_input(ifp, &hp->hp_mbuf, cp, cc); |
| 2074 | } |
| 2075 | |
| 2076 | (*hp->hp_read)(hp); |
| 2077 | } |
| 2078 | |
| 2079 | Static void |
| 2080 | uhso_ifnet_input(struct ifnet *ifp, struct mbuf **mb, uint8_t *cp, size_t cc) |
| 2081 | { |
| 2082 | struct mbuf *m; |
| 2083 | size_t got, len, want; |
| 2084 | int s; |
| 2085 | |
| 2086 | /* |
| 2087 | * Several IP packets might be in the same buffer, we need to |
| 2088 | * separate them before handing it to the ip-stack. We might |
| 2089 | * also receive partial packets which we need to defer until |
| 2090 | * we get more data. |
| 2091 | */ |
| 2092 | while (cc > 0) { |
| 2093 | if (*mb == NULL) { |
| 2094 | MGETHDR(m, M_DONTWAIT, MT_DATA); |
| 2095 | if (m == NULL) { |
| 2096 | aprint_error_ifnet(ifp, "no mbufs\n" ); |
| 2097 | ifp->if_ierrors++; |
| 2098 | break; |
| 2099 | } |
| 2100 | |
| 2101 | MCLGET(m, M_DONTWAIT); |
| 2102 | if (!ISSET(m->m_flags, M_EXT)) { |
| 2103 | aprint_error_ifnet(ifp, "no mbuf clusters\n" ); |
| 2104 | ifp->if_ierrors++; |
| 2105 | m_freem(m); |
| 2106 | break; |
| 2107 | } |
| 2108 | |
| 2109 | got = 0; |
| 2110 | } else { |
| 2111 | m = *mb; |
| 2112 | *mb = NULL; |
| 2113 | got = m->m_pkthdr.len; |
| 2114 | } |
| 2115 | |
| 2116 | /* make sure that the incoming packet is ok */ |
| 2117 | if (got == 0) |
| 2118 | mtod(m, uint8_t *)[0] = cp[0]; |
| 2119 | |
| 2120 | want = mtod(m, struct ip *)->ip_hl << 2; |
| 2121 | if (mtod(m, struct ip *)->ip_v != 4 |
| 2122 | || want != sizeof(struct ip)) { |
| 2123 | aprint_error_ifnet(ifp, |
| 2124 | "bad IP header (v=%d, hl=%zd)\n" , |
| 2125 | mtod(m, struct ip *)->ip_v, want); |
| 2126 | |
| 2127 | ifp->if_ierrors++; |
| 2128 | m_freem(m); |
| 2129 | break; |
| 2130 | } |
| 2131 | |
| 2132 | /* ensure we have the IP header.. */ |
| 2133 | if (got < want) { |
| 2134 | len = MIN(want - got, cc); |
| 2135 | memcpy(mtod(m, uint8_t *) + got, cp, len); |
| 2136 | got += len; |
| 2137 | cc -= len; |
| 2138 | cp += len; |
| 2139 | |
| 2140 | if (got < want) { |
| 2141 | DPRINTF(5, "waiting for IP header " |
| 2142 | "(got %zd want %zd)\n" , got, want); |
| 2143 | |
| 2144 | m->m_pkthdr.len = got; |
| 2145 | *mb = m; |
| 2146 | break; |
| 2147 | } |
| 2148 | } |
| 2149 | |
| 2150 | /* ..and the packet body */ |
| 2151 | want = ntohs(mtod(m, struct ip *)->ip_len); |
| 2152 | if (got < want) { |
| 2153 | len = MIN(want - got, cc); |
| 2154 | memcpy(mtod(m, uint8_t *) + got, cp, len); |
| 2155 | got += len; |
| 2156 | cc -= len; |
| 2157 | cp += len; |
| 2158 | |
| 2159 | if (got < want) { |
| 2160 | DPRINTF(5, "waiting for IP packet " |
| 2161 | "(got %zd want %zd)\n" , got, want); |
| 2162 | |
| 2163 | m->m_pkthdr.len = got; |
| 2164 | *mb = m; |
| 2165 | break; |
| 2166 | } |
| 2167 | } |
| 2168 | |
| 2169 | m_set_rcvif(m, ifp); |
| 2170 | m->m_pkthdr.len = m->m_len = got; |
| 2171 | |
| 2172 | s = splnet(); |
| 2173 | |
| 2174 | bpf_mtap(ifp, m); |
| 2175 | |
| 2176 | if (__predict_false(!pktq_enqueue(ip_pktq, m, 0))) { |
| 2177 | m_freem(m); |
| 2178 | } else { |
| 2179 | ifp->if_ipackets++; |
| 2180 | ifp->if_ibytes += got; |
| 2181 | } |
| 2182 | splx(s); |
| 2183 | } |
| 2184 | } |
| 2185 | |
| 2186 | Static int |
| 2187 | uhso_ifnet_ioctl(struct ifnet *ifp, u_long cmd, void *data) |
| 2188 | { |
| 2189 | struct uhso_port *hp = ifp->if_softc; |
| 2190 | int error, s; |
| 2191 | |
| 2192 | s = splnet(); |
| 2193 | |
| 2194 | switch (cmd) { |
| 2195 | case SIOCINITIFADDR: |
| 2196 | switch (((struct ifaddr *)data)->ifa_addr->sa_family) { |
| 2197 | #ifdef INET |
| 2198 | case AF_INET: |
| 2199 | if (!ISSET(ifp->if_flags, IFF_RUNNING)) { |
| 2200 | SET(ifp->if_flags, IFF_UP); |
| 2201 | error = uhso_ifnet_init(hp); |
| 2202 | if (error != 0) { |
| 2203 | uhso_ifnet_clean(hp); |
| 2204 | break; |
| 2205 | } |
| 2206 | |
| 2207 | SET(ifp->if_flags, IFF_RUNNING); |
| 2208 | DPRINTF(1, "hp=%p, ifp=%p INITIFADDR\n" , hp, |
| 2209 | ifp); |
| 2210 | break; |
| 2211 | } |
| 2212 | |
| 2213 | error = 0; |
| 2214 | break; |
| 2215 | #endif |
| 2216 | |
| 2217 | default: |
| 2218 | error = EAFNOSUPPORT; |
| 2219 | break; |
| 2220 | } |
| 2221 | break; |
| 2222 | |
| 2223 | case SIOCSIFMTU: |
| 2224 | if (((struct ifreq *)data)->ifr_mtu > hp->hp_wsize) { |
| 2225 | error = EINVAL; |
| 2226 | break; |
| 2227 | } |
| 2228 | |
| 2229 | error = ifioctl_common(ifp, cmd, data); |
| 2230 | if (error == ENETRESET) |
| 2231 | error = 0; |
| 2232 | |
| 2233 | break; |
| 2234 | |
| 2235 | case SIOCSIFFLAGS: |
| 2236 | error = ifioctl_common(ifp, cmd, data); |
| 2237 | if (error != 0) |
| 2238 | break; |
| 2239 | |
| 2240 | switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { |
| 2241 | case IFF_UP: |
| 2242 | error = uhso_ifnet_init(hp); |
| 2243 | if (error != 0) { |
| 2244 | uhso_ifnet_clean(hp); |
| 2245 | break; |
| 2246 | } |
| 2247 | |
| 2248 | SET(ifp->if_flags, IFF_RUNNING); |
| 2249 | DPRINTF(1, "hp=%p, ifp=%p RUNNING\n" , hp, ifp); |
| 2250 | break; |
| 2251 | |
| 2252 | case IFF_RUNNING: |
| 2253 | uhso_ifnet_clean(hp); |
| 2254 | CLR(ifp->if_flags, IFF_RUNNING); |
| 2255 | DPRINTF(1, "hp=%p, ifp=%p STOPPED\n" , hp, ifp); |
| 2256 | break; |
| 2257 | |
| 2258 | default: |
| 2259 | break; |
| 2260 | } |
| 2261 | break; |
| 2262 | |
| 2263 | default: |
| 2264 | error = ifioctl_common(ifp, cmd, data); |
| 2265 | break; |
| 2266 | } |
| 2267 | |
| 2268 | splx(s); |
| 2269 | |
| 2270 | return error; |
| 2271 | } |
| 2272 | |
| 2273 | /* is only called if IFF_RUNNING not set */ |
| 2274 | Static int |
| 2275 | uhso_ifnet_init(struct uhso_port *hp) |
| 2276 | { |
| 2277 | struct uhso_softc *sc = hp->hp_sc; |
| 2278 | int error; |
| 2279 | |
| 2280 | DPRINTF(1, "sc=%p, hp=%p\n" , sc, hp); |
| 2281 | |
| 2282 | if (!device_is_active(sc->sc_dev)) |
| 2283 | return EIO; |
| 2284 | |
| 2285 | error = (*hp->hp_init)(hp); |
| 2286 | if (error != 0) |
| 2287 | return error; |
| 2288 | |
| 2289 | error = (*hp->hp_read)(hp); |
| 2290 | if (error != 0) |
| 2291 | return error; |
| 2292 | |
| 2293 | return 0; |
| 2294 | } |
| 2295 | |
| 2296 | Static void |
| 2297 | uhso_ifnet_clean(struct uhso_port *hp) |
| 2298 | { |
| 2299 | |
| 2300 | DPRINTF(1, "hp=%p\n" , hp); |
| 2301 | |
| 2302 | (*hp->hp_clean)(hp); |
| 2303 | } |
| 2304 | |
| 2305 | /* called at splnet() with IFF_OACTIVE not set */ |
| 2306 | Static void |
| 2307 | uhso_ifnet_start(struct ifnet *ifp) |
| 2308 | { |
| 2309 | struct uhso_port *hp = ifp->if_softc; |
| 2310 | struct mbuf *m; |
| 2311 | |
| 2312 | KASSERT(!ISSET(ifp->if_flags, IFF_OACTIVE)); |
| 2313 | |
| 2314 | if (!ISSET(ifp->if_flags, IFF_RUNNING)) |
| 2315 | return; |
| 2316 | |
| 2317 | if (IFQ_IS_EMPTY(&ifp->if_snd)) { |
| 2318 | DPRINTF(5, "finished sending\n" ); |
| 2319 | return; |
| 2320 | } |
| 2321 | |
| 2322 | SET(ifp->if_flags, IFF_OACTIVE); |
| 2323 | IFQ_DEQUEUE(&ifp->if_snd, m); |
| 2324 | hp->hp_wlen = m->m_pkthdr.len; |
| 2325 | if (hp->hp_wlen > hp->hp_wsize) { |
| 2326 | aprint_error_ifnet(ifp, |
| 2327 | "packet too long (%zd > %zd), truncating\n" , |
| 2328 | hp->hp_wlen, hp->hp_wsize); |
| 2329 | |
| 2330 | hp->hp_wlen = hp->hp_wsize; |
| 2331 | } |
| 2332 | |
| 2333 | bpf_mtap(ifp, m); |
| 2334 | |
| 2335 | m_copydata(m, 0, hp->hp_wlen, hp->hp_wbuf); |
| 2336 | m_freem(m); |
| 2337 | |
| 2338 | if ((*hp->hp_write)(hp) != 0) { |
| 2339 | ifp->if_oerrors++; |
| 2340 | CLR(ifp->if_flags, IFF_OACTIVE); |
| 2341 | } |
| 2342 | } |
| 2343 | |
| 2344 | Static int |
| 2345 | uhso_ifnet_output(struct ifnet *ifp, struct mbuf *m, |
| 2346 | const struct sockaddr *dst, const struct rtentry *rt0) |
| 2347 | { |
| 2348 | int error; |
| 2349 | |
| 2350 | if (!ISSET(ifp->if_flags, IFF_RUNNING)) |
| 2351 | return EIO; |
| 2352 | |
| 2353 | IFQ_CLASSIFY(&ifp->if_snd, m, dst->sa_family); |
| 2354 | |
| 2355 | switch (dst->sa_family) { |
| 2356 | #ifdef INET |
| 2357 | case AF_INET: |
| 2358 | error = ifq_enqueue(ifp, m); |
| 2359 | break; |
| 2360 | #endif |
| 2361 | |
| 2362 | default: |
| 2363 | DPRINTF(0, "unsupported address family %d\n" , dst->sa_family); |
| 2364 | error = EAFNOSUPPORT; |
| 2365 | m_freem(m); |
| 2366 | break; |
| 2367 | } |
| 2368 | |
| 2369 | return error; |
| 2370 | } |
| 2371 | |