sys/dev/usbmisc/uplcom/uplcom.c

   1 /*
   2  * $NetBSD: uplcom.c,v 1.21 2001/11/13 06:24:56 lukem Exp $
   3  * $FreeBSD: src/sys/dev/usb/uplcom.c,v 1.39 2006/09/07 00:06:42 imp Exp $
   4  * $DragonFly: src/sys/dev/usbmisc/uplcom/uplcom.c,v 1.26 2008/01/13 16:04:02 hasso Exp $
   5  */
   6
   7 /*-
   8  * Copyright (c) 2001-2003, 2005 Shunsuke Akiyama <akiyama@jp.FreeBSD.org>.
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 /*
  34  * Copyright (c) 2001 The NetBSD Foundation, Inc.
  35  * All rights reserved.
  36  *
  37  * This code is derived from software contributed to The NetBSD Foundation
  38  * by Ichiro FUKUHARA (ichiro@ichiro.org).
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  * 1. Redistributions of source code must retain the above copyright
  44  *    notice, this list of conditions and the following disclaimer.
  45  * 2. Redistributions in binary form must reproduce the above copyright
  46  *    notice, this list of conditions and the following disclaimer in the
  47  *    documentation and/or other materials provided with the distribution.
  48  * 3. All advertising materials mentioning features or use of this software
  49  *    must display the following acknowledgement:
  50  *        This product includes software developed by the NetBSD
  51  *        Foundation, Inc. and its contributors.
  52  * 4. Neither the name of The NetBSD Foundation nor the names of its
  53  *    contributors may be used to endorse or promote products derived
  54  *    from this software without specific prior written permission.
  55  *
  56  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  57  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  58  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  59  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  60  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  61  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  62  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  63  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  64  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  65  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  66  * POSSIBILITY OF SUCH DAMAGE.
  67  */
  68
  69 /*
  70  * This driver supports several devices devices driven by Prolific PL-2303
  71  * (known also as PL-2303H), PL-2303X and PL-2303HX USB-to-RS232 bridge chip.
  72  * The devices are sold under many different brand names.
  73  *
  74  * Datasheets are available at Prolific www site at http://www.prolific.com.tw
  75  * The datasheets don't contain full programming information for the chip.
  76  *
  77  * PL-2303HX has the same features as PL-2303X (at least from the point of
  78  * view of device driver) but is pin-to-pin compatible with PL-2303.
  79  *
  80  * There are several differences between PL-2303 and PL-2303(H)X.
  81  * PL-2303(H)X can do higher bitrate in bulk mode, has _probably_
  82  * different command for controlling CRTSCTS and needs special
  83  * sequence of commands for initialization which aren't also
  84  * documented in the datasheet.
  85  */
  86
  87 #include <sys/param.h>
  88 #include <sys/systm.h>
  89 #include <sys/kernel.h>
  90 #include <sys/malloc.h>
  91 #include <sys/bus.h>
  92 #include <sys/ioccom.h>
  93 #include <sys/fcntl.h>
  94 #include <sys/conf.h>
  95 #include <sys/tty.h>
  96 #include <sys/file.h>
  97 #include <sys/select.h>
  98 #include <sys/proc.h>
  99 #include <sys/poll.h>
 100 #include <sys/sysctl.h>
 101 #include <sys/taskqueue.h>
 102
 103 #include <bus/usb/usb.h>
 104 #include <bus/usb/usbcdc.h>
 105
 106 #include <bus/usb/usbdi.h>
 107 #include <bus/usb/usbdi_util.h>
 108 #include <bus/usb/usb_quirks.h>
 109
 110 #include "../ucom/ucomvar.h"
 111
 112 SYSCTL_NODE(_hw_usb, OID_AUTO, uplcom, CTLFLAG_RW, 0, "USB uplcom");
 113 #ifdef USB_DEBUG
 114 static int      uplcomdebug = 0;
 115 SYSCTL_INT(_hw_usb_uplcom, OID_AUTO, debug, CTLFLAG_RW,
 116            &uplcomdebug, 0, "uplcom debug level");
 117
 118 #define DPRINTFN(n, x)  do { \
 119                                 if (uplcomdebug > (n)) \
 120                                         kprintf x; \
 121                         } while (0)
 122 #else
 123 #define DPRINTFN(n, x)
 124 #endif
 125 #define DPRINTF(x) DPRINTFN(0, x)
 126
 127 #define UPLCOM_MODVER                   1       /* module version */
 128
 129 #define UPLCOM_CONFIG_INDEX             0
 130 #define UPLCOM_IFACE_INDEX              0
 131 #define UPLCOM_SECOND_IFACE_INDEX       1
 132
 133 #ifndef UPLCOM_INTR_INTERVAL
 134 #define UPLCOM_INTR_INTERVAL            100     /* ms */
 135 #endif
 136
 137 #define UPLCOM_SET_REQUEST              0x01
 138 #define UPLCOM_SET_CRTSCTS              0x41
 139 #define UPLCOM_SET_CRTSCTS_PL2303X      0x61
 140 #define RSAQ_STATUS_CTS                 0x80
 141 #define RSAQ_STATUS_DSR                 0x02
 142 #define RSAQ_STATUS_DCD                 0x01
 143
 144 #define TYPE_PL2303                     0
 145 #define TYPE_PL2303X                    1
 146
 147 struct  uplcom_softc {
 148         struct ucom_softc       sc_ucom;
 149
 150         int                     sc_iface_number;        /* interface number */
 151
 152         usbd_interface_handle   sc_intr_iface;  /* interrupt interface */
 153         int                     sc_intr_number; /* interrupt number */
 154         usbd_pipe_handle        sc_intr_pipe;   /* interrupt pipe */
 155         u_char                  *sc_intr_buf;   /* interrupt buffer */
 156         int                     sc_isize;
 157
 158         usb_cdc_line_state_t    sc_line_state;  /* current line state */
 159         u_char                  sc_dtr;         /* current DTR state */
 160         u_char                  sc_rts;         /* current RTS state */
 161         u_char                  sc_status;
 162
 163         u_char                  sc_lsr;         /* Local status register */
 164         u_char                  sc_msr;         /* uplcom status register */
 165
 166         int                     sc_chiptype;    /* Type of chip */
 167
 168         struct task             sc_task;
 169 };
 170
 171 /*
 172  * These are the maximum number of bytes transferred per frame.
 173  * The output buffer size cannot be increased due to the size encoding.
 174  */
 175 #define UPLCOMIBUFSIZE 256
 176 #define UPLCOMOBUFSIZE 256
 177
 178 static  usbd_status uplcom_reset(struct uplcom_softc *);
 179 static  usbd_status uplcom_set_line_coding(struct uplcom_softc *,
 180                                            usb_cdc_line_state_t *);
 181 static  usbd_status uplcom_set_crtscts(struct uplcom_softc *);
 182 static  void uplcom_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
 183
 184 static  void uplcom_set(void *, int, int, int);
 185 static  void uplcom_dtr(struct uplcom_softc *, int);
 186 static  void uplcom_rts(struct uplcom_softc *, int);
 187 static  void uplcom_break(struct uplcom_softc *, int);
 188 static  void uplcom_set_line_state(struct uplcom_softc *);
 189 static  void uplcom_get_status(void *, int, u_char *, u_char *);
 190 #if 0 /* TODO */
 191 static  int  uplcom_ioctl(void *, int, u_long, caddr_t, int, struct thread *);
 192 #endif
 193 static  int  uplcom_param(void *, int, struct termios *);
 194 static  int  uplcom_open(void *, int);
 195 static  void uplcom_close(void *, int);
 196 static  void uplcom_notify(void *, int);
 197
 198 struct ucom_callback uplcom_callback = {
 199         uplcom_get_status,
 200         uplcom_set,
 201         uplcom_param,
 202         NULL, /* uplcom_ioctl, TODO */
 203         uplcom_open,
 204         uplcom_close,
 205         NULL,
 206         NULL
 207 };
 208
 209 static const struct usb_devno uplcom_devs[] = {
 210         { USB_DEVICE(0x0413, 0x2101) }, /* Leadtek 9531 GPS */
 211         { USB_DEVICE(0x0421, 0x1234) }, /* Nokia CA-42 USB data cable clones*/
 212         { USB_DEVICE(0x04bb, 0x0a03) }, /* I/O DATA USB-RSAQ USB to serial */
 213         { USB_DEVICE(0x04bb, 0x0a0e) }, /* I/O DATA USB-RSAQ5 USB to serial */
 214         { USB_DEVICE(0x04bf, 0x0115) }, /* TDK USB-PDC adapter UPA9664 */
 215         { USB_DEVICE(0x04bf, 0x0117) }, /* TDK USB-PHS adapter UHA6400 */
 216         { USB_DEVICE(0x04da, 0x3900) }, /* Panasonic 50" touch panel */
 217         { USB_DEVICE(0x04e8, 0x8001) }, /* Samsung I330 smartphone cradle */
 218         { USB_DEVICE(0x050d, 0x0257) }, /* Belkin F5U257 USB to serial */
 219         { USB_DEVICE(0x0547, 0x2008) }, /* Anchor serial */
 220         { USB_DEVICE(0x0557, 0x2008) }, /* Aten UC232A USB to serial */
 221         { USB_DEVICE(0x056e, 0x5003) }, /* ELECOM UC-SGT USB to serial */
 222         { USB_DEVICE(0x056e, 0x5004) }, /* ELECOM UC-SGT USB to serial */
 223         { USB_DEVICE(0x0584, 0xb000) }, /* RATOC REX-USB60 USB to serial */
 224         { USB_DEVICE(0x058f, 0x9720) }, /* Alcor AU9720 USB to serial */
 225         { USB_DEVICE(0x067b, 0x04bb) }, /* I/O DATA USB-RSAQ2 USB to serial */
 226         { USB_DEVICE(0x067b, 0x1234) }, /* Unbranded DCU-11 clone */
 227         { USB_DEVICE(0x067b, 0x2303) }, /* IOGEAR/ATEN UC-232A, ST Lab
 228                                            USB-SERIAL-X etc */
 229         { USB_DEVICE(0x067b, 0xaaa0) }, /* Microsoft OEM Pharos 360 GPS */
 230         { USB_DEVICE(0x067b, 0xaaa2) }, /* I/O DATA USB-RSAQ3 USB to serial */
 231         { USB_DEVICE(0x0731, 0x0528) }, /* Sony-Ericsson DCU-10/DCU-11 */
 232         { USB_DEVICE(0x0731, 0x2003) }, /* Susteen Datapilot Universal-2 Phone
 233                                            Cable */
 234         { USB_DEVICE(0x0745, 0x0001) }, /* Syntech CPT-8001C barcode scanner
 235                                            USB cradle */
 236         { USB_DEVICE(0x079b, 0x0027) }, /* Sagem USB data cables */
 237         { USB_DEVICE(0x0833, 0x012e) }, /* SOURCENEXT KeikaiDenwa 8 with
 238                                            charger */
 239         { USB_DEVICE(0x0833, 0x039f) }, /* SOURCENEXT KeikaiDenwa 8 */
 240         { USB_DEVICE(0x0b41, 0x0011) }, /* HAL Corporation Crossam2+USB */
 241         { USB_DEVICE(0x0b8c, 0x2303) }, /* Smart Technologies USB to serial */
 242         { USB_DEVICE(0x0df7, 0x0620) }, /* Mobile Action MA-620 IrDA */
 243         { USB_DEVICE(0x0e55, 0x110b) }, /* Speed Dragon MS3303H */
 244         { USB_DEVICE(0x0eba, 0x1080) }, /* Itegno GSM/GPRS modem */
 245         { USB_DEVICE(0x0eba, 0x2080) }, /* Itegno CDMA 1x card */
 246         { USB_DEVICE(0x10b5, 0xac70) }, /* PLX CA-42 USB data cable clone */
 247         { USB_DEVICE(0x11f5, 0x0001) }, /* Siemens SX1 cellphone */
 248         { USB_DEVICE(0x11f5, 0x0003) }, /* Siemens x65 series cellphones */
 249         { USB_DEVICE(0x11f5, 0x0004) }, /* Siemens x75 series cellphones */
 250         { USB_DEVICE(0x11f6, 0x2001) }, /* Willcom W-SIM */
 251         { USB_DEVICE(0x11f7, 0x02df) }, /* Alcatel One Touch 535/735 phones */
 252         { USB_DEVICE(0x1453, 0x4026) }, /* RADIOSHACK USB cable */
 253         { USB_DEVICE(0x2478, 0x2008) }, /* Tripp-Lite U209-000-R */
 254         { USB_DEVICE(0x6189, 0x2068) }, /* Sitecom USB to serial cable */
 255 };
 256
 257 static device_probe_t uplcom_match;
 258 static device_attach_t uplcom_attach;
 259 static device_detach_t uplcom_detach;
 260
 261 static device_method_t uplcom_methods[] = {
 262         /* Device interface */
 263         DEVMETHOD(device_probe, uplcom_match),
 264         DEVMETHOD(device_attach, uplcom_attach),
 265         DEVMETHOD(device_detach, uplcom_detach),
 266         { 0, 0 }
 267 };
 268
 269 static driver_t uplcom_driver = {
 270         "ucom",
 271         uplcom_methods,
 272         sizeof (struct uplcom_softc)
 273 };
 274
 275 DRIVER_MODULE(uplcom, uhub, uplcom_driver, ucom_devclass, usbd_driver_load, 0);
 276 MODULE_DEPEND(uplcom, usb, 1, 1, 1);
 277 MODULE_DEPEND(uplcom, ucom, UCOM_MINVER, UCOM_PREFVER, UCOM_MAXVER);
 278 MODULE_VERSION(uplcom, UPLCOM_MODVER);
 279
 280 static int      uplcominterval = UPLCOM_INTR_INTERVAL;
 281
 282 static int
 283 sysctl_hw_usb_uplcom_interval(SYSCTL_HANDLER_ARGS)
 284 {
 285         int err, val;
 286
 287         val = uplcominterval;
 288         err = sysctl_handle_int(oidp, &val, sizeof(val), req);
 289         if (err != 0 || req->newptr == NULL)
 290                 return (err);
 291         if (0 < val && val <= 1000)
 292                 uplcominterval = val;
 293         else
 294                 err = EINVAL;
 295
 296         return (err);
 297 }
 298
 299 SYSCTL_PROC(_hw_usb_uplcom, OID_AUTO, interval, CTLTYPE_INT | CTLFLAG_RW,
 300             0, sizeof(int), sysctl_hw_usb_uplcom_interval,
 301             "I", "uplcom interrupt pipe interval");
 302
 303 static int
 304 uplcom_match(device_t self)
 305 {
 306         struct usb_attach_arg *uaa = device_get_ivars(self);
 307
 308         if (uaa->iface != NULL)
 309                 return (UMATCH_NONE);
 310
 311         return (usb_lookup(uplcom_devs, uaa->vendor, uaa->product) != NULL ?
 312                 UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
 313 }
 314
 315 static int
 316 uplcom_attach(device_t self)
 317 {
 318         struct uplcom_softc *sc = device_get_softc(self);
 319         struct usb_attach_arg *uaa = device_get_ivars(self);
 320         usbd_device_handle dev = uaa->device;
 321         usb_device_descriptor_t *dd;
 322         struct ucom_softc *ucom;
 323         usb_config_descriptor_t *cdesc;
 324         usb_interface_descriptor_t *id;
 325         usb_endpoint_descriptor_t *ed;
 326         usbd_status err;
 327         int i;
 328
 329         ucom = &sc->sc_ucom;
 330         bzero(sc, sizeof (struct uplcom_softc));
 331
 332         ucom->sc_dev = self;
 333         ucom->sc_udev = dev;
 334         ucom->sc_iface = uaa->iface;
 335
 336         DPRINTF(("uplcom attach: sc = %p\n", sc));
 337
 338         dd = usbd_get_device_descriptor(uaa->device);
 339
 340         if (!dd)
 341                 goto error;
 342
 343         /*
 344          * Determine chip type with algorithm sequence taken from the
 345          * Linux driver as I'm not aware of any better method. Device
 346          * release number in chip could be (and in fact is in many cases)
 347          * replaced by the contents of external EEPROM etc.
 348          */
 349         else if (dd->bDeviceClass == 0x02)
 350                 sc->sc_chiptype = TYPE_PL2303;
 351         else if (dd->bMaxPacketSize == 0x40)
 352                 sc->sc_chiptype = TYPE_PL2303X;
 353         else
 354                 sc->sc_chiptype = TYPE_PL2303;
 355
 356 #ifdef USB_DEBUG
 357         /* print the chip type */
 358         if (sc->sc_chiptype == TYPE_PL2303X) {
 359                 DPRINTF(("uplcom_attach: chiptype 2303X\n"));
 360         } else {
 361                 DPRINTF(("uplcom_attach: chiptype 2303\n"));
 362         }
 363 #endif
 364
 365         /* initialize endpoints */
 366         ucom->sc_bulkin_no = ucom->sc_bulkout_no = -1;
 367         sc->sc_intr_number = -1;
 368         sc->sc_intr_pipe = NULL;
 369
 370         /* Move the device into the configured state. */
 371         err = usbd_set_config_index(dev, UPLCOM_CONFIG_INDEX, 1);
 372         if (err) {
 373                 device_printf(ucom->sc_dev, "failed to set configuration: %s\n",
 374                               usbd_errstr(err));
 375                 ucom->sc_dying = 1;
 376                 goto error;
 377         }
 378
 379         /* get the config descriptor */
 380         cdesc = usbd_get_config_descriptor(ucom->sc_udev);
 381
 382         if (cdesc == NULL) {
 383                 device_printf(ucom->sc_dev, "failed to get configuration "
 384                               "descriptor\n");
 385                 ucom->sc_dying = 1;
 386                 goto error;
 387         }
 388
 389         /* get the (first/common) interface */
 390         err = usbd_device2interface_handle(dev, UPLCOM_IFACE_INDEX,
 391                                            &ucom->sc_iface);
 392         if (err) {
 393                 device_printf(ucom->sc_dev, "failed to get interface: %s\n",
 394                               usbd_errstr(err));
 395                 ucom->sc_dying = 1;
 396                 goto error;
 397         }
 398
 399         /* Find the interrupt endpoints */
 400
 401         id = usbd_get_interface_descriptor(ucom->sc_iface);
 402         sc->sc_iface_number = id->bInterfaceNumber;
 403
 404         for (i = 0; i < id->bNumEndpoints; i++) {
 405                 ed = usbd_interface2endpoint_descriptor(ucom->sc_iface, i);
 406                 if (ed == NULL) {
 407                         device_printf(ucom->sc_dev, "no endpoint descriptor "
 408                                       "for %d\n", i);
 409                         ucom->sc_dying = 1;
 410                         goto error;
 411                 }
 412
 413                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
 414                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
 415                         sc->sc_intr_number = ed->bEndpointAddress;
 416                         sc->sc_isize = UGETW(ed->wMaxPacketSize);
 417                 }
 418         }
 419
 420         if (sc->sc_intr_number == -1) {
 421                 device_printf(ucom->sc_dev, "could not find interrupt in\n");
 422                 ucom->sc_dying = 1;
 423                 goto error;
 424         }
 425
 426         /* keep interface for interrupt */
 427         sc->sc_intr_iface = ucom->sc_iface;
 428
 429         /*
 430          * USB-RSAQ1 has two interface
 431          *
 432          *  USB-RSAQ1       | USB-RSAQ2
 433          * -----------------+-----------------
 434          * Interface 0      |Interface 0
 435          *  Interrupt(0x81) | Interrupt(0x81)
 436          * -----------------+ BulkIN(0x02)
 437          * Interface 1      | BulkOUT(0x83)
 438          *   BulkIN(0x02)   |
 439          *   BulkOUT(0x83)  |
 440          */
 441         if (cdesc->bNumInterface == 2) {
 442                 err = usbd_device2interface_handle(dev,
 443                                                    UPLCOM_SECOND_IFACE_INDEX,
 444                                                    &ucom->sc_iface);
 445                 if (err) {
 446                         device_printf(ucom->sc_dev, "failed to get second "
 447                                       "interface: %s\n", usbd_errstr(err));
 448                         ucom->sc_dying = 1;
 449                         goto error;
 450                 }
 451         }
 452
 453         /* Find the bulk{in,out} endpoints */
 454
 455         id = usbd_get_interface_descriptor(ucom->sc_iface);
 456         sc->sc_iface_number = id->bInterfaceNumber;
 457
 458         for (i = 0; i < id->bNumEndpoints; i++) {
 459                 ed = usbd_interface2endpoint_descriptor(ucom->sc_iface, i);
 460                 if (ed == NULL) {
 461                         device_printf(ucom->sc_dev, "no endpoint descriptor "
 462                                       "for %d\n", i);
 463                         ucom->sc_dying = 1;
 464                         goto error;
 465                 }
 466
 467                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
 468                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 469                         ucom->sc_bulkin_no = ed->bEndpointAddress;
 470                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
 471                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 472                         ucom->sc_bulkout_no = ed->bEndpointAddress;
 473                 }
 474         }
 475
 476         if (ucom->sc_bulkin_no == -1) {
 477                 device_printf(ucom->sc_dev, "could not find data bulk in\n");
 478                 ucom->sc_dying = 1;
 479                 goto error;
 480         }
 481
 482         if (ucom->sc_bulkout_no == -1) {
 483                 device_printf(ucom->sc_dev, "could not find data bulk out\n");
 484                 ucom->sc_dying = 1;
 485                 goto error;
 486         }
 487
 488         sc->sc_dtr = sc->sc_rts = -1;
 489         ucom->sc_parent = sc;
 490         ucom->sc_portno = UCOM_UNK_PORTNO;
 491         /* bulkin, bulkout set above */
 492         ucom->sc_ibufsize = UPLCOMIBUFSIZE;
 493         ucom->sc_obufsize = UPLCOMOBUFSIZE;
 494         ucom->sc_ibufsizepad = UPLCOMIBUFSIZE;
 495         ucom->sc_opkthdrlen = 0;
 496         ucom->sc_callback = &uplcom_callback;
 497
 498         err = uplcom_reset(sc);
 499
 500         if (err) {
 501                 device_printf(ucom->sc_dev, "reset failed: %s\n",
 502                               usbd_errstr(err));
 503                 ucom->sc_dying = 1;
 504                 goto error;
 505         }
 506
 507         DPRINTF(("uplcom: in = 0x%x, out = 0x%x, intr = 0x%x\n",
 508                  ucom->sc_bulkin_no, ucom->sc_bulkout_no, sc->sc_intr_number));
 509
 510         TASK_INIT(&sc->sc_task, 0, uplcom_notify, sc);
 511         ucom_attach(&sc->sc_ucom);
 512
 513         return 0;
 514
 515 error:
 516         return ENXIO;
 517 }
 518
 519 static int
 520 uplcom_detach(device_t self)
 521 {
 522         struct uplcom_softc *sc = device_get_softc(self);
 523         int rv = 0;
 524
 525         DPRINTF(("uplcom_detach: sc = %p\n", sc));
 526
 527         if (sc->sc_intr_pipe != NULL) {
 528                 usbd_abort_pipe(sc->sc_intr_pipe);
 529                 usbd_close_pipe(sc->sc_intr_pipe);
 530                 kfree(sc->sc_intr_buf, M_USBDEV);
 531                 sc->sc_intr_pipe = NULL;
 532         }
 533
 534         sc->sc_ucom.sc_dying = 1;
 535
 536         rv = ucom_detach(&sc->sc_ucom);
 537
 538         return (rv);
 539 }
 540
 541 static usbd_status
 542 uplcom_reset(struct uplcom_softc *sc)
 543 {
 544         usb_device_request_t req;
 545         usbd_status err;
 546
 547         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
 548         req.bRequest = UPLCOM_SET_REQUEST;
 549         USETW(req.wValue, 0);
 550         USETW(req.wIndex, sc->sc_iface_number);
 551         USETW(req.wLength, 0);
 552
 553         err = usbd_do_request(sc->sc_ucom.sc_udev, &req, 0);
 554         if (err) {
 555                 device_printf(sc->sc_ucom.sc_dev, "uplcom_reset: %s\n",
 556                               usbd_errstr(err));
 557                 return (EIO);
 558         }
 559
 560         return (0);
 561 }
 562
 563 struct pl2303x_init {
 564         uint8_t         req_type;
 565         uint8_t         request;
 566         uint16_t        value;
 567         uint16_t        index;
 568         uint16_t        length;
 569 };
 570
 571 static const struct pl2303x_init pl2303x[] = {
 572         { UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8484,    0, 0 },
 573         { UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x0404,    0, 0 },
 574         { UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8484,    0, 0 },
 575         { UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8383,    0, 0 },
 576         { UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8484,    0, 0 },
 577         { UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x0404,    1, 0 },
 578         { UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8484,    0, 0 },
 579         { UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8383,    0, 0 },
 580         { UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST,      0,    1, 0 },
 581         { UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST,      1,    0, 0 },
 582         { UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST,      2, 0x44, 0 }
 583 };
 584 #define N_PL2302X_INIT  (sizeof(pl2303x)/sizeof(pl2303x[0]))
 585
 586 static usbd_status
 587 uplcom_pl2303x_init(struct uplcom_softc *sc)
 588 {
 589         usb_device_request_t req;
 590         usbd_status err;
 591         int i;
 592
 593         for (i = 0; i < N_PL2302X_INIT; i++) {
 594                 req.bmRequestType = pl2303x[i].req_type;
 595                 req.bRequest = pl2303x[i].request;
 596                 USETW(req.wValue, pl2303x[i].value);
 597                 USETW(req.wIndex, pl2303x[i].index);
 598                 USETW(req.wLength, pl2303x[i].length);
 599
 600                 err = usbd_do_request(sc->sc_ucom.sc_udev, &req, 0);
 601                 if (err) {
 602                         device_printf(sc->sc_ucom.sc_dev,
 603                                       "uplcom_pl2303x_init: %d: %s\n", i,
 604                                       usbd_errstr(err));
 605                         return (EIO);
 606                 }
 607         }
 608
 609         return (0);
 610 }
 611
 612 static void
 613 uplcom_set_line_state(struct uplcom_softc *sc)
 614 {
 615         usb_device_request_t req;
 616         int ls;
 617         usbd_status err;
 618
 619         ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) |
 620                 (sc->sc_rts ? UCDC_LINE_RTS : 0);
 621         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 622         req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
 623         USETW(req.wValue, ls);
 624         USETW(req.wIndex, sc->sc_iface_number);
 625         USETW(req.wLength, 0);
 626
 627         err = usbd_do_request(sc->sc_ucom.sc_udev, &req, 0);
 628         if (err)
 629                 device_printf(sc->sc_ucom.sc_dev, "uplcom_set_line_status: "
 630                               "%s\n", usbd_errstr(err));
 631 }
 632
 633 static void
 634 uplcom_set(void *addr, int portno, int reg, int onoff)
 635 {
 636         struct uplcom_softc *sc = addr;
 637
 638         switch (reg) {
 639         case UCOM_SET_DTR:
 640                 uplcom_dtr(sc, onoff);
 641                 break;
 642         case UCOM_SET_RTS:
 643                 uplcom_rts(sc, onoff);
 644                 break;
 645         case UCOM_SET_BREAK:
 646                 uplcom_break(sc, onoff);
 647                 break;
 648         default:
 649                 break;
 650         }
 651 }
 652
 653 static void
 654 uplcom_dtr(struct uplcom_softc *sc, int onoff)
 655 {
 656         DPRINTF(("uplcom_dtr: onoff = %d\n", onoff));
 657
 658         if (sc->sc_dtr == onoff)
 659                 return;
 660         sc->sc_dtr = onoff;
 661
 662         uplcom_set_line_state(sc);
 663 }
 664
 665 static void
 666 uplcom_rts(struct uplcom_softc *sc, int onoff)
 667 {
 668         DPRINTF(("uplcom_rts: onoff = %d\n", onoff));
 669
 670         if (sc->sc_rts == onoff)
 671                 return;
 672         sc->sc_rts = onoff;
 673
 674         uplcom_set_line_state(sc);
 675 }
 676
 677 static void
 678 uplcom_break(struct uplcom_softc *sc, int onoff)
 679 {
 680         usb_device_request_t req;
 681         usbd_status err;
 682
 683         DPRINTF(("uplcom_break: onoff = %d\n", onoff));
 684
 685         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 686         req.bRequest = UCDC_SEND_BREAK;
 687         USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
 688         USETW(req.wIndex, sc->sc_iface_number);
 689         USETW(req.wLength, 0);
 690
 691         err = usbd_do_request(sc->sc_ucom.sc_udev, &req, 0);
 692         if (err)
 693                 device_printf(sc->sc_ucom.sc_dev, "uplcom_break: %s\n",
 694                               usbd_errstr(err));
 695 }
 696
 697 static usbd_status
 698 uplcom_set_crtscts(struct uplcom_softc *sc)
 699 {
 700         usb_device_request_t req;
 701         usbd_status err;
 702
 703         DPRINTF(("uplcom_set_crtscts: on\n"));
 704
 705         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
 706         req.bRequest = UPLCOM_SET_REQUEST;
 707         USETW(req.wValue, 0);
 708         if (sc->sc_chiptype == TYPE_PL2303X)
 709                 USETW(req.wIndex, UPLCOM_SET_CRTSCTS_PL2303X);
 710         else
 711                 USETW(req.wIndex, UPLCOM_SET_CRTSCTS);
 712         USETW(req.wLength, 0);
 713
 714         err = usbd_do_request(sc->sc_ucom.sc_udev, &req, 0);
 715         if (err) {
 716                 device_printf(sc->sc_ucom.sc_dev, "uplcom_set_crtscts: %s\n",
 717                               usbd_errstr(err));
 718                 return (err);
 719         }
 720
 721         return (USBD_NORMAL_COMPLETION);
 722 }
 723
 724 static usbd_status
 725 uplcom_set_line_coding(struct uplcom_softc *sc, usb_cdc_line_state_t *state)
 726 {
 727         usb_device_request_t req;
 728         usbd_status err;
 729
 730         DPRINTF((
 731 "uplcom_set_line_coding: rate = %d, fmt = %d, parity = %d bits = %d\n",
 732                  UGETDW(state->dwDTERate), state->bCharFormat,
 733                  state->bParityType, state->bDataBits));
 734
 735         if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) {
 736                 DPRINTF(("uplcom_set_line_coding: already set\n"));
 737                 return (USBD_NORMAL_COMPLETION);
 738         }
 739
 740         req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 741         req.bRequest = UCDC_SET_LINE_CODING;
 742         USETW(req.wValue, 0);
 743         USETW(req.wIndex, sc->sc_iface_number);
 744         USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
 745
 746         err = usbd_do_request(sc->sc_ucom.sc_udev, &req, state);
 747         if (err) {
 748                 device_printf(sc->sc_ucom.sc_dev, "uplcom_set_line_coding: "
 749                               "%s\n", usbd_errstr(err));
 750                 return (err);
 751         }
 752
 753         sc->sc_line_state = *state;
 754
 755         return (USBD_NORMAL_COMPLETION);
 756 }
 757
 758 static const int uplcom_rates[] = {
 759         75, 150, 300, 600, 1200, 1800, 2400, 3600, 4800, 7200, 9600, 14400,
 760         19200, 28800, 38400, 57600, 115200,
 761         /*
 762          * Higher speeds are probably possible. PL2303X supports up to
 763          * 6Mb and can set any rate
 764          */
 765         230400, 460800, 614400, 921600, 1228800
 766 };
 767 #define N_UPLCOM_RATES  (sizeof(uplcom_rates)/sizeof(uplcom_rates[0]))
 768
 769 static int
 770 uplcom_param(void *addr, int portno, struct termios *t)
 771 {
 772         struct uplcom_softc *sc = addr;
 773         usbd_status err;
 774         usb_cdc_line_state_t ls;
 775         int i;
 776
 777         DPRINTF(("uplcom_param: sc = %p\n", sc));
 778
 779         /* Check requested baud rate */
 780         for (i = 0; i < N_UPLCOM_RATES; i++)
 781                 if (uplcom_rates[i] == t->c_ospeed)
 782                         break;
 783         if (i == N_UPLCOM_RATES) {
 784                 DPRINTF(("uplcom_param: bad baud rate (%d)\n", t->c_ospeed));
 785                 return (EIO);
 786         }
 787
 788         USETDW(ls.dwDTERate, t->c_ospeed);
 789         if (ISSET(t->c_cflag, CSTOPB))
 790                 ls.bCharFormat = UCDC_STOP_BIT_2;
 791         else
 792                 ls.bCharFormat = UCDC_STOP_BIT_1;
 793         if (ISSET(t->c_cflag, PARENB)) {
 794                 if (ISSET(t->c_cflag, PARODD))
 795                         ls.bParityType = UCDC_PARITY_ODD;
 796                 else
 797                         ls.bParityType = UCDC_PARITY_EVEN;
 798         } else
 799                 ls.bParityType = UCDC_PARITY_NONE;
 800         switch (ISSET(t->c_cflag, CSIZE)) {
 801         case CS5:
 802                 ls.bDataBits = 5;
 803                 break;
 804         case CS6:
 805                 ls.bDataBits = 6;
 806                 break;
 807         case CS7:
 808                 ls.bDataBits = 7;
 809                 break;
 810         case CS8:
 811                 ls.bDataBits = 8;
 812                 break;
 813         }
 814
 815         err = uplcom_set_line_coding(sc, &ls);
 816         if (err)
 817                 return (EIO);
 818
 819         if (ISSET(t->c_cflag, CRTSCTS)) {
 820                 err = uplcom_set_crtscts(sc);
 821                 if (err)
 822                         return (EIO);
 823         }
 824
 825         return (0);
 826 }
 827
 828 static int
 829 uplcom_open(void *addr, int portno)
 830 {
 831         struct uplcom_softc *sc = addr;
 832         int err;
 833
 834         if (sc->sc_ucom.sc_dying)
 835                 return (ENXIO);
 836
 837         DPRINTF(("uplcom_open: sc = %p\n", sc));
 838
 839         if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) {
 840                 sc->sc_status = 0; /* clear status bit */
 841                 sc->sc_intr_buf = kmalloc(sc->sc_isize, M_USBDEV, M_WAITOK);
 842                 err = usbd_open_pipe_intr(sc->sc_intr_iface,
 843                                           sc->sc_intr_number,
 844                                           USBD_SHORT_XFER_OK,
 845                                           &sc->sc_intr_pipe,
 846                                           sc,
 847                                           sc->sc_intr_buf,
 848                                           sc->sc_isize,
 849                                           uplcom_intr,
 850                                           uplcominterval);
 851                 if (err) {
 852                         device_printf(sc->sc_ucom.sc_dev, "cannot open "
 853                                       "interrupt pipe (addr %d)\n",
 854                                       sc->sc_intr_number);
 855                         return (EIO);
 856                 }
 857         }
 858
 859         if (sc->sc_chiptype == TYPE_PL2303X)
 860                 return (uplcom_pl2303x_init(sc));
 861
 862         return (0);
 863 }
 864
 865 static void
 866 uplcom_close(void *addr, int portno)
 867 {
 868         struct uplcom_softc *sc = addr;
 869         int err;
 870
 871         if (sc->sc_ucom.sc_dying)
 872                 return;
 873
 874         DPRINTF(("uplcom_close: close\n"));
 875
 876         if (sc->sc_intr_pipe != NULL) {
 877                 err = usbd_abort_pipe(sc->sc_intr_pipe);
 878                 if (err)
 879                         device_printf(sc->sc_ucom.sc_dev, "abort interrupt "
 880                                       "pipe failed: %s\n", usbd_errstr(err));
 881                 err = usbd_close_pipe(sc->sc_intr_pipe);
 882                 if (err)
 883                         device_printf(sc->sc_ucom.sc_dev, "close interrupt "
 884                                       "pipe failed: %s\n", usbd_errstr(err));
 885                 kfree(sc->sc_intr_buf, M_USBDEV);
 886                 sc->sc_intr_pipe = NULL;
 887         }
 888 }
 889
 890 static void
 891 uplcom_intr(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 892 {
 893         struct uplcom_softc *sc = priv;
 894         u_char *buf = sc->sc_intr_buf;
 895         u_char pstatus;
 896
 897         if (sc->sc_ucom.sc_dying)
 898                 return;
 899
 900         if (status != USBD_NORMAL_COMPLETION) {
 901                 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
 902                         return;
 903
 904                 DPRINTF(("%s: uplcom_intr: abnormal status: %s\n",
 905                         device_get_nameunit(sc->sc_ucom.sc_dev),
 906                         usbd_errstr(status)));
 907                 usbd_clear_endpoint_stall_async(sc->sc_intr_pipe);
 908                 return;
 909         }
 910
 911         DPRINTF(("%s: uplcom status = %02x\n",
 912                  device_get_nameunit(sc->sc_ucom.sc_dev), buf[8]));
 913
 914         sc->sc_lsr = sc->sc_msr = 0;
 915         pstatus = buf[8];
 916         if (ISSET(pstatus, RSAQ_STATUS_CTS))
 917                 sc->sc_msr |= UMSR_CTS;
 918         else
 919                 sc->sc_msr &= ~UMSR_CTS;
 920         if (ISSET(pstatus, RSAQ_STATUS_DSR))
 921                 sc->sc_msr |= UMSR_DSR;
 922         else
 923                 sc->sc_msr &= ~UMSR_DSR;
 924         if (ISSET(pstatus, RSAQ_STATUS_DCD))
 925                 sc->sc_msr |= UMSR_DCD;
 926         else
 927                 sc->sc_msr &= ~UMSR_DCD;
 928
 929         /* Deferred notifying to the ucom layer */
 930         taskqueue_enqueue(taskqueue_swi, &sc->sc_task);
 931 }
 932
 933 static void
 934 uplcom_notify(void *arg, int count)
 935 {
 936         struct uplcom_softc *sc;
 937
 938         sc = (struct uplcom_softc *)arg;
 939         if (sc->sc_ucom.sc_dying)
 940                 return;
 941         ucom_status_change(&sc->sc_ucom);
 942 }
 943
 944 static void
 945 uplcom_get_status(void *addr, int portno, u_char *lsr, u_char *msr)
 946 {
 947         struct uplcom_softc *sc = addr;
 948
 949         DPRINTF(("uplcom_get_status:\n"));
 950
 951         if (lsr != NULL)
 952                 *lsr = sc->sc_lsr;
 953         if (msr != NULL)
 954                 *msr = sc->sc_msr;
 955 }
 956
 957 #if 0 /* TODO */
 958 static int
 959 uplcom_ioctl(void *addr, int portno, u_long cmd, caddr_t data, int flag,
 960              struct thread *p)
 961 {
 962         struct uplcom_softc *sc = addr;
 963         int error = 0;
 964
 965         if (sc->sc_ucom.sc_dying)
 966                 return (EIO);
 967
 968         DPRINTF(("uplcom_ioctl: cmd = 0x%08lx\n", cmd));
 969
 970         switch (cmd) {
 971         case TIOCNOTTY:
 972         case TIOCMGET:
 973         case TIOCMSET:
 974         case USB_GET_CM_OVER_DATA:
 975         case USB_SET_CM_OVER_DATA:
 976                 break;
 977
 978         default:
 979                 DPRINTF(("uplcom_ioctl: unknown\n"));
 980                 error = ENOTTY;
 981                 break;
 982         }
 983
 984         return (error);
 985 }
 986 #endif