uvscom.c

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    1 /*      $NetBSD: usb/uvscom.c,v 1.1 2002/03/19 15:08:42 augustss Exp $  */
    2 
    3 #include <sys/cdefs.h>
    4 __FBSDID("$FreeBSD$");
    5 
    6 /*-
    7  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    8  *
    9  * Copyright (c) 2001-2003, 2005 Shunsuke Akiyama <akiyama@jp.FreeBSD.org>.
   10  * All rights reserved.
   11  *
   12  * Redistribution and use in source and binary forms, with or without
   13  * modification, are permitted provided that the following conditions
   14  * are met:
   15  * 1. Redistributions of source code must retain the above copyright
   16  *    notice, this list of conditions and the following disclaimer.
   17  * 2. Redistributions in binary form must reproduce the above copyright
   18  *    notice, this list of conditions and the following disclaimer in the
   19  *    documentation and/or other materials provided with the distribution.
   20  *
   21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   31  * SUCH DAMAGE.
   32  *
   33  */
   34 
   35 /*
   36  * uvscom: SUNTAC Slipper U VS-10U driver.
   37  * Slipper U is a PC Card to USB converter for data communication card
   38  * adapter.  It supports DDI Pocket's Air H" C@rd, C@rd H" 64, NTT's P-in,
   39  * P-in m@ater and various data communication card adapters.
   40  */
   41 
   42 #include <sys/stdint.h>
   43 #include <sys/stddef.h>
   44 #include <sys/param.h>
   45 #include <sys/queue.h>
   46 #include <sys/types.h>
   47 #include <sys/systm.h>
   48 #include <sys/kernel.h>
   49 #include <sys/bus.h>
   50 #include <sys/module.h>
   51 #include <sys/lock.h>
   52 #include <sys/mutex.h>
   53 #include <sys/condvar.h>
   54 #include <sys/sysctl.h>
   55 #include <sys/sx.h>
   56 #include <sys/unistd.h>
   57 #include <sys/callout.h>
   58 #include <sys/malloc.h>
   59 #include <sys/priv.h>
   60 
   61 #include <dev/usb/usb.h>
   62 #include <dev/usb/usbdi.h>
   63 #include <dev/usb/usbdi_util.h>
   64 #include "usbdevs.h"
   65 
   66 #define USB_DEBUG_VAR uvscom_debug
   67 #include <dev/usb/usb_debug.h>
   68 #include <dev/usb/usb_process.h>
   69 
   70 #include <dev/usb/serial/usb_serial.h>
   71 
   72 #ifdef USB_DEBUG
   73 static int uvscom_debug = 0;
   74 
   75 static SYSCTL_NODE(_hw_usb, OID_AUTO, uvscom, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
   76     "USB uvscom");
   77 SYSCTL_INT(_hw_usb_uvscom, OID_AUTO, debug, CTLFLAG_RWTUN,
   78     &uvscom_debug, 0, "Debug level");
   79 #endif
   80 
   81 #define UVSCOM_MODVER           1       /* module version */
   82 
   83 #define UVSCOM_CONFIG_INDEX     0
   84 #define UVSCOM_IFACE_INDEX      0
   85 
   86 /* Request */
   87 #define UVSCOM_SET_SPEED        0x10
   88 #define UVSCOM_LINE_CTL         0x11
   89 #define UVSCOM_SET_PARAM        0x12
   90 #define UVSCOM_READ_STATUS      0xd0
   91 #define UVSCOM_SHUTDOWN         0xe0
   92 
   93 /* UVSCOM_SET_SPEED parameters */
   94 #define UVSCOM_SPEED_150BPS     0x00
   95 #define UVSCOM_SPEED_300BPS     0x01
   96 #define UVSCOM_SPEED_600BPS     0x02
   97 #define UVSCOM_SPEED_1200BPS    0x03
   98 #define UVSCOM_SPEED_2400BPS    0x04
   99 #define UVSCOM_SPEED_4800BPS    0x05
  100 #define UVSCOM_SPEED_9600BPS    0x06
  101 #define UVSCOM_SPEED_19200BPS   0x07
  102 #define UVSCOM_SPEED_38400BPS   0x08
  103 #define UVSCOM_SPEED_57600BPS   0x09
  104 #define UVSCOM_SPEED_115200BPS  0x0a
  105 
  106 /* UVSCOM_LINE_CTL parameters */
  107 #define UVSCOM_BREAK            0x40
  108 #define UVSCOM_RTS              0x02
  109 #define UVSCOM_DTR              0x01
  110 #define UVSCOM_LINE_INIT        0x08
  111 
  112 /* UVSCOM_SET_PARAM parameters */
  113 #define UVSCOM_DATA_MASK        0x03
  114 #define UVSCOM_DATA_BIT_8       0x03
  115 #define UVSCOM_DATA_BIT_7       0x02
  116 #define UVSCOM_DATA_BIT_6       0x01
  117 #define UVSCOM_DATA_BIT_5       0x00
  118 
  119 #define UVSCOM_STOP_MASK        0x04
  120 #define UVSCOM_STOP_BIT_2       0x04
  121 #define UVSCOM_STOP_BIT_1       0x00
  122 
  123 #define UVSCOM_PARITY_MASK      0x18
  124 #define UVSCOM_PARITY_EVEN      0x18
  125 #define UVSCOM_PARITY_ODD       0x08
  126 #define UVSCOM_PARITY_NONE      0x00
  127 
  128 /* Status bits */
  129 #define UVSCOM_TXRDY            0x04
  130 #define UVSCOM_RXRDY            0x01
  131 
  132 #define UVSCOM_DCD              0x08
  133 #define UVSCOM_NOCARD           0x04
  134 #define UVSCOM_DSR              0x02
  135 #define UVSCOM_CTS              0x01
  136 #define UVSCOM_USTAT_MASK       (UVSCOM_NOCARD | UVSCOM_DSR | UVSCOM_CTS)
  137 
  138 #define UVSCOM_BULK_BUF_SIZE    1024    /* bytes */
  139 
  140 enum {
  141         UVSCOM_BULK_DT_WR,
  142         UVSCOM_BULK_DT_RD,
  143         UVSCOM_INTR_DT_RD,
  144         UVSCOM_N_TRANSFER,
  145 };
  146 
  147 struct uvscom_softc {
  148         struct ucom_super_softc sc_super_ucom;
  149         struct ucom_softc sc_ucom;
  150 
  151         struct usb_xfer *sc_xfer[UVSCOM_N_TRANSFER];
  152         struct usb_device *sc_udev;
  153         struct mtx sc_mtx;
  154 
  155         uint16_t sc_line;               /* line control register */
  156 
  157         uint8_t sc_iface_no;            /* interface number */
  158         uint8_t sc_iface_index;         /* interface index */
  159         uint8_t sc_lsr;                 /* local status register */
  160         uint8_t sc_msr;                 /* uvscom status register */
  161         uint8_t sc_unit_status;         /* unit status */
  162 };
  163 
  164 /* prototypes */
  165 
  166 static device_probe_t uvscom_probe;
  167 static device_attach_t uvscom_attach;
  168 static device_detach_t uvscom_detach;
  169 static void uvscom_free_softc(struct uvscom_softc *);
  170 
  171 static usb_callback_t uvscom_write_callback;
  172 static usb_callback_t uvscom_read_callback;
  173 static usb_callback_t uvscom_intr_callback;
  174 
  175 static void     uvscom_free(struct ucom_softc *);
  176 static void     uvscom_cfg_set_dtr(struct ucom_softc *, uint8_t);
  177 static void     uvscom_cfg_set_rts(struct ucom_softc *, uint8_t);
  178 static void     uvscom_cfg_set_break(struct ucom_softc *, uint8_t);
  179 static int      uvscom_pre_param(struct ucom_softc *, struct termios *);
  180 static void     uvscom_cfg_param(struct ucom_softc *, struct termios *);
  181 static int      uvscom_pre_open(struct ucom_softc *);
  182 static void     uvscom_cfg_open(struct ucom_softc *);
  183 static void     uvscom_cfg_close(struct ucom_softc *);
  184 static void     uvscom_start_read(struct ucom_softc *);
  185 static void     uvscom_stop_read(struct ucom_softc *);
  186 static void     uvscom_start_write(struct ucom_softc *);
  187 static void     uvscom_stop_write(struct ucom_softc *);
  188 static void     uvscom_cfg_get_status(struct ucom_softc *, uint8_t *,
  189                     uint8_t *);
  190 static void     uvscom_cfg_write(struct uvscom_softc *, uint8_t, uint16_t);
  191 static uint16_t uvscom_cfg_read_status(struct uvscom_softc *);
  192 static void     uvscom_poll(struct ucom_softc *ucom);
  193 
  194 static const struct usb_config uvscom_config[UVSCOM_N_TRANSFER] = {
  195         [UVSCOM_BULK_DT_WR] = {
  196                 .type = UE_BULK,
  197                 .endpoint = UE_ADDR_ANY,
  198                 .direction = UE_DIR_OUT,
  199                 .bufsize = UVSCOM_BULK_BUF_SIZE,
  200                 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
  201                 .callback = &uvscom_write_callback,
  202         },
  203 
  204         [UVSCOM_BULK_DT_RD] = {
  205                 .type = UE_BULK,
  206                 .endpoint = UE_ADDR_ANY,
  207                 .direction = UE_DIR_IN,
  208                 .bufsize = UVSCOM_BULK_BUF_SIZE,
  209                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
  210                 .callback = &uvscom_read_callback,
  211         },
  212 
  213         [UVSCOM_INTR_DT_RD] = {
  214                 .type = UE_INTERRUPT,
  215                 .endpoint = UE_ADDR_ANY,
  216                 .direction = UE_DIR_IN,
  217                 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
  218                 .bufsize = 0,   /* use wMaxPacketSize */
  219                 .callback = &uvscom_intr_callback,
  220         },
  221 };
  222 
  223 static const struct ucom_callback uvscom_callback = {
  224         .ucom_cfg_get_status = &uvscom_cfg_get_status,
  225         .ucom_cfg_set_dtr = &uvscom_cfg_set_dtr,
  226         .ucom_cfg_set_rts = &uvscom_cfg_set_rts,
  227         .ucom_cfg_set_break = &uvscom_cfg_set_break,
  228         .ucom_cfg_param = &uvscom_cfg_param,
  229         .ucom_cfg_open = &uvscom_cfg_open,
  230         .ucom_cfg_close = &uvscom_cfg_close,
  231         .ucom_pre_open = &uvscom_pre_open,
  232         .ucom_pre_param = &uvscom_pre_param,
  233         .ucom_start_read = &uvscom_start_read,
  234         .ucom_stop_read = &uvscom_stop_read,
  235         .ucom_start_write = &uvscom_start_write,
  236         .ucom_stop_write = &uvscom_stop_write,
  237         .ucom_poll = &uvscom_poll,
  238         .ucom_free = &uvscom_free,
  239 };
  240 
  241 static const STRUCT_USB_HOST_ID uvscom_devs[] = {
  242         /* SUNTAC U-Cable type A4 */
  243         {USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_AS144L4, 0)},
  244         /* SUNTAC U-Cable type D2 */
  245         {USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_DS96L, 0)},
  246         /* SUNTAC Ir-Trinity */
  247         {USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_IS96U, 0)},
  248         /* SUNTAC U-Cable type P1 */
  249         {USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_PS64P1, 0)},
  250         /* SUNTAC Slipper U */
  251         {USB_VPI(USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_VS10U, 0)},
  252 };
  253 
  254 static device_method_t uvscom_methods[] = {
  255         DEVMETHOD(device_probe, uvscom_probe),
  256         DEVMETHOD(device_attach, uvscom_attach),
  257         DEVMETHOD(device_detach, uvscom_detach),
  258         DEVMETHOD_END
  259 };
  260 
  261 static driver_t uvscom_driver = {
  262         .name = "uvscom",
  263         .methods = uvscom_methods,
  264         .size = sizeof(struct uvscom_softc),
  265 };
  266 
  267 DRIVER_MODULE(uvscom, uhub, uvscom_driver, NULL, NULL);
  268 MODULE_DEPEND(uvscom, ucom, 1, 1, 1);
  269 MODULE_DEPEND(uvscom, usb, 1, 1, 1);
  270 MODULE_VERSION(uvscom, UVSCOM_MODVER);
  271 USB_PNP_HOST_INFO(uvscom_devs);
  272 
  273 static int
  274 uvscom_probe(device_t dev)
  275 {
  276         struct usb_attach_arg *uaa = device_get_ivars(dev);
  277 
  278         if (uaa->usb_mode != USB_MODE_HOST) {
  279                 return (ENXIO);
  280         }
  281         if (uaa->info.bConfigIndex != UVSCOM_CONFIG_INDEX) {
  282                 return (ENXIO);
  283         }
  284         if (uaa->info.bIfaceIndex != UVSCOM_IFACE_INDEX) {
  285                 return (ENXIO);
  286         }
  287         return (usbd_lookup_id_by_uaa(uvscom_devs, sizeof(uvscom_devs), uaa));
  288 }
  289 
  290 static int
  291 uvscom_attach(device_t dev)
  292 {
  293         struct usb_attach_arg *uaa = device_get_ivars(dev);
  294         struct uvscom_softc *sc = device_get_softc(dev);
  295         int error;
  296 
  297         device_set_usb_desc(dev);
  298         mtx_init(&sc->sc_mtx, "uvscom", NULL, MTX_DEF);
  299         ucom_ref(&sc->sc_super_ucom);
  300 
  301         sc->sc_udev = uaa->device;
  302 
  303         DPRINTF("sc=%p\n", sc);
  304 
  305         sc->sc_iface_no = uaa->info.bIfaceNum;
  306         sc->sc_iface_index = UVSCOM_IFACE_INDEX;
  307 
  308         error = usbd_transfer_setup(uaa->device, &sc->sc_iface_index,
  309             sc->sc_xfer, uvscom_config, UVSCOM_N_TRANSFER, sc, &sc->sc_mtx);
  310 
  311         if (error) {
  312                 DPRINTF("could not allocate all USB transfers!\n");
  313                 goto detach;
  314         }
  315         sc->sc_line = UVSCOM_LINE_INIT;
  316 
  317         /* clear stall at first run */
  318         mtx_lock(&sc->sc_mtx);
  319         usbd_xfer_set_stall(sc->sc_xfer[UVSCOM_BULK_DT_WR]);
  320         usbd_xfer_set_stall(sc->sc_xfer[UVSCOM_BULK_DT_RD]);
  321         mtx_unlock(&sc->sc_mtx);
  322 
  323         error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc,
  324             &uvscom_callback, &sc->sc_mtx);
  325         if (error) {
  326                 goto detach;
  327         }
  328         ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev);
  329 
  330         /* start interrupt pipe */
  331         mtx_lock(&sc->sc_mtx);
  332         usbd_transfer_start(sc->sc_xfer[UVSCOM_INTR_DT_RD]);
  333         mtx_unlock(&sc->sc_mtx);
  334 
  335         return (0);
  336 
  337 detach:
  338         uvscom_detach(dev);
  339         return (ENXIO);
  340 }
  341 
  342 static int
  343 uvscom_detach(device_t dev)
  344 {
  345         struct uvscom_softc *sc = device_get_softc(dev);
  346 
  347         DPRINTF("sc=%p\n", sc);
  348 
  349         /* stop interrupt pipe */
  350 
  351         if (sc->sc_xfer[UVSCOM_INTR_DT_RD])
  352                 usbd_transfer_stop(sc->sc_xfer[UVSCOM_INTR_DT_RD]);
  353 
  354         ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom);
  355         usbd_transfer_unsetup(sc->sc_xfer, UVSCOM_N_TRANSFER);
  356 
  357         device_claim_softc(dev);
  358 
  359         uvscom_free_softc(sc);
  360 
  361         return (0);
  362 }
  363 
  364 UCOM_UNLOAD_DRAIN(uvscom);
  365 
  366 static void
  367 uvscom_free_softc(struct uvscom_softc *sc)
  368 {
  369         if (ucom_unref(&sc->sc_super_ucom)) {
  370                 mtx_destroy(&sc->sc_mtx);
  371                 device_free_softc(sc);
  372         }
  373 }
  374 
  375 static void
  376 uvscom_free(struct ucom_softc *ucom)
  377 {
  378         uvscom_free_softc(ucom->sc_parent);
  379 }
  380 
  381 static void
  382 uvscom_write_callback(struct usb_xfer *xfer, usb_error_t error)
  383 {
  384         struct uvscom_softc *sc = usbd_xfer_softc(xfer);
  385         struct usb_page_cache *pc;
  386         uint32_t actlen;
  387 
  388         switch (USB_GET_STATE(xfer)) {
  389         case USB_ST_SETUP:
  390         case USB_ST_TRANSFERRED:
  391 tr_setup:
  392                 pc = usbd_xfer_get_frame(xfer, 0);
  393                 if (ucom_get_data(&sc->sc_ucom, pc, 0,
  394                     UVSCOM_BULK_BUF_SIZE, &actlen)) {
  395                         usbd_xfer_set_frame_len(xfer, 0, actlen);
  396                         usbd_transfer_submit(xfer);
  397                 }
  398                 return;
  399 
  400         default:                        /* Error */
  401                 if (error != USB_ERR_CANCELLED) {
  402                         /* try to clear stall first */
  403                         usbd_xfer_set_stall(xfer);
  404                         goto tr_setup;
  405                 }
  406                 return;
  407         }
  408 }
  409 
  410 static void
  411 uvscom_read_callback(struct usb_xfer *xfer, usb_error_t error)
  412 {
  413         struct uvscom_softc *sc = usbd_xfer_softc(xfer);
  414         struct usb_page_cache *pc;
  415         int actlen;
  416 
  417         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
  418 
  419         switch (USB_GET_STATE(xfer)) {
  420         case USB_ST_TRANSFERRED:
  421                 pc = usbd_xfer_get_frame(xfer, 0);
  422                 ucom_put_data(&sc->sc_ucom, pc, 0, actlen);
  423 
  424         case USB_ST_SETUP:
  425 tr_setup:
  426                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
  427                 usbd_transfer_submit(xfer);
  428                 return;
  429 
  430         default:                        /* Error */
  431                 if (error != USB_ERR_CANCELLED) {
  432                         /* try to clear stall first */
  433                         usbd_xfer_set_stall(xfer);
  434                         goto tr_setup;
  435                 }
  436                 return;
  437         }
  438 }
  439 
  440 static void
  441 uvscom_intr_callback(struct usb_xfer *xfer, usb_error_t error)
  442 {
  443         struct uvscom_softc *sc = usbd_xfer_softc(xfer);
  444         struct usb_page_cache *pc;
  445         uint8_t buf[2];
  446         int actlen;
  447 
  448         usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
  449 
  450         switch (USB_GET_STATE(xfer)) {
  451         case USB_ST_TRANSFERRED:
  452                 if (actlen >= 2) {
  453                         pc = usbd_xfer_get_frame(xfer, 0);
  454                         usbd_copy_out(pc, 0, buf, sizeof(buf));
  455 
  456                         sc->sc_lsr = 0;
  457                         sc->sc_msr = 0;
  458                         sc->sc_unit_status = buf[1];
  459 
  460                         if (buf[0] & UVSCOM_TXRDY) {
  461                                 sc->sc_lsr |= ULSR_TXRDY;
  462                         }
  463                         if (buf[0] & UVSCOM_RXRDY) {
  464                                 sc->sc_lsr |= ULSR_RXRDY;
  465                         }
  466                         if (buf[1] & UVSCOM_CTS) {
  467                                 sc->sc_msr |= SER_CTS;
  468                         }
  469                         if (buf[1] & UVSCOM_DSR) {
  470                                 sc->sc_msr |= SER_DSR;
  471                         }
  472                         if (buf[1] & UVSCOM_DCD) {
  473                                 sc->sc_msr |= SER_DCD;
  474                         }
  475                         /*
  476                          * the UCOM layer will ignore this call if the TTY
  477                          * device is closed!
  478                          */
  479                         ucom_status_change(&sc->sc_ucom);
  480                 }
  481         case USB_ST_SETUP:
  482 tr_setup:
  483                 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
  484                 usbd_transfer_submit(xfer);
  485                 return;
  486 
  487         default:                        /* Error */
  488                 if (error != USB_ERR_CANCELLED) {
  489                         /* try to clear stall first */
  490                         usbd_xfer_set_stall(xfer);
  491                         goto tr_setup;
  492                 }
  493                 return;
  494         }
  495 }
  496 
  497 static void
  498 uvscom_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
  499 {
  500         struct uvscom_softc *sc = ucom->sc_parent;
  501 
  502         DPRINTF("onoff = %d\n", onoff);
  503 
  504         if (onoff)
  505                 sc->sc_line |= UVSCOM_DTR;
  506         else
  507                 sc->sc_line &= ~UVSCOM_DTR;
  508 
  509         uvscom_cfg_write(sc, UVSCOM_LINE_CTL, sc->sc_line);
  510 }
  511 
  512 static void
  513 uvscom_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
  514 {
  515         struct uvscom_softc *sc = ucom->sc_parent;
  516 
  517         DPRINTF("onoff = %d\n", onoff);
  518 
  519         if (onoff)
  520                 sc->sc_line |= UVSCOM_RTS;
  521         else
  522                 sc->sc_line &= ~UVSCOM_RTS;
  523 
  524         uvscom_cfg_write(sc, UVSCOM_LINE_CTL, sc->sc_line);
  525 }
  526 
  527 static void
  528 uvscom_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff)
  529 {
  530         struct uvscom_softc *sc = ucom->sc_parent;
  531 
  532         DPRINTF("onoff = %d\n", onoff);
  533 
  534         if (onoff)
  535                 sc->sc_line |= UVSCOM_BREAK;
  536         else
  537                 sc->sc_line &= ~UVSCOM_BREAK;
  538 
  539         uvscom_cfg_write(sc, UVSCOM_LINE_CTL, sc->sc_line);
  540 }
  541 
  542 static int
  543 uvscom_pre_param(struct ucom_softc *ucom, struct termios *t)
  544 {
  545         switch (t->c_ospeed) {
  546                 case B150:
  547                 case B300:
  548                 case B600:
  549                 case B1200:
  550                 case B2400:
  551                 case B4800:
  552                 case B9600:
  553                 case B19200:
  554                 case B38400:
  555                 case B57600:
  556                 case B115200:
  557                 default:
  558                 return (EINVAL);
  559         }
  560         return (0);
  561 }
  562 
  563 static void
  564 uvscom_cfg_param(struct ucom_softc *ucom, struct termios *t)
  565 {
  566         struct uvscom_softc *sc = ucom->sc_parent;
  567         uint16_t value;
  568 
  569         DPRINTF("\n");
  570 
  571         switch (t->c_ospeed) {
  572         case B150:
  573                 value = UVSCOM_SPEED_150BPS;
  574                 break;
  575         case B300:
  576                 value = UVSCOM_SPEED_300BPS;
  577                 break;
  578         case B600:
  579                 value = UVSCOM_SPEED_600BPS;
  580                 break;
  581         case B1200:
  582                 value = UVSCOM_SPEED_1200BPS;
  583                 break;
  584         case B2400:
  585                 value = UVSCOM_SPEED_2400BPS;
  586                 break;
  587         case B4800:
  588                 value = UVSCOM_SPEED_4800BPS;
  589                 break;
  590         case B9600:
  591                 value = UVSCOM_SPEED_9600BPS;
  592                 break;
  593         case B19200:
  594                 value = UVSCOM_SPEED_19200BPS;
  595                 break;
  596         case B38400:
  597                 value = UVSCOM_SPEED_38400BPS;
  598                 break;
  599         case B57600:
  600                 value = UVSCOM_SPEED_57600BPS;
  601                 break;
  602         case B115200:
  603                 value = UVSCOM_SPEED_115200BPS;
  604                 break;
  605         default:
  606                 return;
  607         }
  608 
  609         uvscom_cfg_write(sc, UVSCOM_SET_SPEED, value);
  610 
  611         value = 0;
  612 
  613         if (t->c_cflag & CSTOPB) {
  614                 value |= UVSCOM_STOP_BIT_2;
  615         }
  616         if (t->c_cflag & PARENB) {
  617                 if (t->c_cflag & PARODD) {
  618                         value |= UVSCOM_PARITY_ODD;
  619                 } else {
  620                         value |= UVSCOM_PARITY_EVEN;
  621                 }
  622         } else {
  623                 value |= UVSCOM_PARITY_NONE;
  624         }
  625 
  626         switch (t->c_cflag & CSIZE) {
  627         case CS5:
  628                 value |= UVSCOM_DATA_BIT_5;
  629                 break;
  630         case CS6:
  631                 value |= UVSCOM_DATA_BIT_6;
  632                 break;
  633         case CS7:
  634                 value |= UVSCOM_DATA_BIT_7;
  635                 break;
  636         default:
  637         case CS8:
  638                 value |= UVSCOM_DATA_BIT_8;
  639                 break;
  640         }
  641 
  642         uvscom_cfg_write(sc, UVSCOM_SET_PARAM, value);
  643 }
  644 
  645 static int
  646 uvscom_pre_open(struct ucom_softc *ucom)
  647 {
  648         struct uvscom_softc *sc = ucom->sc_parent;
  649 
  650         DPRINTF("sc = %p\n", sc);
  651 
  652         /* check if PC card was inserted */
  653 
  654         if (sc->sc_unit_status & UVSCOM_NOCARD) {
  655                 DPRINTF("no PC card!\n");
  656                 return (ENXIO);
  657         }
  658         return (0);
  659 }
  660 
  661 static void
  662 uvscom_cfg_open(struct ucom_softc *ucom)
  663 {
  664         struct uvscom_softc *sc = ucom->sc_parent;
  665 
  666         DPRINTF("sc = %p\n", sc);
  667 
  668         uvscom_cfg_read_status(sc);
  669 }
  670 
  671 static void
  672 uvscom_cfg_close(struct ucom_softc *ucom)
  673 {
  674         struct uvscom_softc *sc = ucom->sc_parent;
  675 
  676         DPRINTF("sc=%p\n", sc);
  677 
  678         uvscom_cfg_write(sc, UVSCOM_SHUTDOWN, 0);
  679 }
  680 
  681 static void
  682 uvscom_start_read(struct ucom_softc *ucom)
  683 {
  684         struct uvscom_softc *sc = ucom->sc_parent;
  685 
  686         usbd_transfer_start(sc->sc_xfer[UVSCOM_BULK_DT_RD]);
  687 }
  688 
  689 static void
  690 uvscom_stop_read(struct ucom_softc *ucom)
  691 {
  692         struct uvscom_softc *sc = ucom->sc_parent;
  693 
  694         usbd_transfer_stop(sc->sc_xfer[UVSCOM_BULK_DT_RD]);
  695 }
  696 
  697 static void
  698 uvscom_start_write(struct ucom_softc *ucom)
  699 {
  700         struct uvscom_softc *sc = ucom->sc_parent;
  701 
  702         usbd_transfer_start(sc->sc_xfer[UVSCOM_BULK_DT_WR]);
  703 }
  704 
  705 static void
  706 uvscom_stop_write(struct ucom_softc *ucom)
  707 {
  708         struct uvscom_softc *sc = ucom->sc_parent;
  709 
  710         usbd_transfer_stop(sc->sc_xfer[UVSCOM_BULK_DT_WR]);
  711 }
  712 
  713 static void
  714 uvscom_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
  715 {
  716         struct uvscom_softc *sc = ucom->sc_parent;
  717 
  718         *lsr = sc->sc_lsr;
  719         *msr = sc->sc_msr;
  720 }
  721 
  722 static void
  723 uvscom_cfg_write(struct uvscom_softc *sc, uint8_t index, uint16_t value)
  724 {
  725         struct usb_device_request req;
  726         usb_error_t err;
  727 
  728         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
  729         req.bRequest = index;
  730         USETW(req.wValue, value);
  731         USETW(req.wIndex, 0);
  732         USETW(req.wLength, 0);
  733 
  734         err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 
  735             &req, NULL, 0, 1000);
  736         if (err) {
  737                 DPRINTFN(0, "device request failed, err=%s "
  738                     "(ignored)\n", usbd_errstr(err));
  739         }
  740 }
  741 
  742 static uint16_t
  743 uvscom_cfg_read_status(struct uvscom_softc *sc)
  744 {
  745         struct usb_device_request req;
  746         usb_error_t err;
  747         uint8_t data[2];
  748 
  749         req.bmRequestType = UT_READ_VENDOR_DEVICE;
  750         req.bRequest = UVSCOM_READ_STATUS;
  751         USETW(req.wValue, 0);
  752         USETW(req.wIndex, 0);
  753         USETW(req.wLength, 2);
  754 
  755         err = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 
  756             &req, data, 0, 1000);
  757         if (err) {
  758                 DPRINTFN(0, "device request failed, err=%s "
  759                     "(ignored)\n", usbd_errstr(err));
  760         }
  761         return (data[0] | (data[1] << 8));
  762 }
  763 
  764 static void
  765 uvscom_poll(struct ucom_softc *ucom)
  766 {
  767         struct uvscom_softc *sc = ucom->sc_parent;
  768         usbd_transfer_poll(sc->sc_xfer, UVSCOM_N_TRANSFER);
  769 }
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FreeBSD/Linux Kernel Cross Reference sys/dev/usb/serial/uvscom.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/usb/serial/uvscom.c
