1237 lines
29 KiB
C
1237 lines
29 KiB
C
/* $NetBSD: umodem.c,v 1.5 1999/01/08 11:58:25 augustss Exp $ */
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/* $FreeBSD$ */
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/*
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (lennart@augustsson.net) at
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* Carlstedt Research & Technology.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Comm Class spec: http://www.usb.org/developers/data/usbcdc11.pdf
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*/
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/*
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* TODO:
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* - Add error recovery in various places; the big problem is what
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* to do in a callback if there is an error.
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* - Implement a Call Device for modems without multiplexed commands.
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*
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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#include <sys/device.h>
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#include <sys/ioctl.h>
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#elif defined(__FreeBSD__)
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#include <sys/bus.h>
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#include <sys/ioccom.h>
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#include <sys/fcntl.h>
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#endif
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#include <sys/conf.h>
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#include <sys/tty.h>
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#include <sys/clist.h>
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#include <sys/file.h>
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#if __FreeBSD_version >= 500014
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#include <sys/selinfo.h>
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#else
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#include <sys/select.h>
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#endif
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#include <sys/proc.h>
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#include <sys/vnode.h>
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#include <sys/poll.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbcdc.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdi_util.h>
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#include <dev/usb/usbdevs.h>
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#include <dev/usb/usb_quirks.h>
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#include <dev/usb/usbdevs.h>
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#ifdef UMODEM_DEBUG
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#define DPRINTF(x) if(umodemdebug) logprintf x
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#define DPRINTFN(n, x) if(umodemdebug > (n)) logprintf x
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int umodemdebug = 1;
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n, x)
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#endif
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/* Macros to clear/set/test flags. */
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#define SET(t, f) (t) |= (f)
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#define CLR(t, f) (t) &= ~((unsigned)(f))
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#define ISSET(t, f) ((t) & (f))
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#define UMODEMUNIT_MASK 0x3ffff
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#define UMODEMDIALOUT_MASK 0x80000
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#define UMODEMCALLUNIT_MASK 0x40000
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#define UMODEMUNIT(x) (minor(x) & UMODEMUNIT_MASK)
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#define UMODEMDIALOUT(x) (minor(x) & UMODEMDIALOUT_MASK)
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#define UMODEMCALLUNIT(x) (minor(x) & UMODEMCALLUNIT_MASK)
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#define UMODEMIBUFSIZE 64
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struct umodem_softc {
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USBBASEDEVICE sc_dev; /* base device */
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usbd_device_handle sc_udev; /* USB device */
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int sc_ctl_iface_no;
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usbd_interface_handle sc_ctl_iface; /* control interface */
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int sc_data_iface_no;
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usbd_interface_handle sc_data_iface; /* data interface */
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int sc_bulkin_no; /* bulk in endpoint address */
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usbd_pipe_handle sc_bulkin_pipe; /* bulk in pipe */
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usbd_xfer_handle sc_ixfer; /* read request */
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u_char *sc_ibuf; /* read buffer */
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int sc_bulkout_no; /* bulk out endpoint address */
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usbd_pipe_handle sc_bulkout_pipe;/* bulk out pipe */
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usbd_xfer_handle sc_oxfer; /* read request */
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int sc_cm_cap; /* CM capabilities */
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int sc_acm_cap; /* ACM capabilities */
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int sc_cm_over_data;
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struct tty *sc_tty; /* our tty */
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usb_cdc_line_state_t sc_line_state; /* current line state */
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u_char sc_dtr; /* current DTR state */
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u_char sc_opening; /* lock during open */
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u_char sc_dying; /* disconnecting */
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#if defined(__FreeBSD__)
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dev_t dev; /* special device node */
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#endif
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};
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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cdev_decl(umodem);
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#elif defined(__FreeBSD__)
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d_open_t umodemopen;
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d_close_t umodemclose;
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d_read_t umodemread;
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d_write_t umodemwrite;
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d_ioctl_t umodemioctl;
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#define UMODEM_CDEV_MAJOR 124
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static struct cdevsw umodem_cdevsw = {
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/* open */ umodemopen,
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/* close */ umodemclose,
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/* read */ umodemread,
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/* write */ umodemwrite,
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/* ioctl */ umodemioctl,
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/* poll */ ttypoll,
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/* mmap */ nommap,
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/* strategy */ nostrategy,
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/* name */ "umodem",
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/* maj */ UMODEM_CDEV_MAJOR,
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/* dump */ nodump,
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/* psize */ nopsize,
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/* flags */ D_TTY | D_KQFILTER,
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/* kqfilter */ ttykqfilter,
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};
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#endif
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void *umodem_get_desc
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(usbd_device_handle dev, int type, int subtype);
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usbd_status umodem_set_comm_feature
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(struct umodem_softc *sc, int feature, int state);
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usbd_status umodem_set_line_coding
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(struct umodem_softc *sc, usb_cdc_line_state_t *state);
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void umodem_get_caps (usbd_device_handle, int *, int *);
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void umodem_cleanup (struct umodem_softc *);
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int umodemparam (struct tty *, struct termios *);
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void umodemstart (struct tty *);
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void umodemstop (struct tty *, int);
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struct tty * umodemtty (dev_t dev);
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void umodem_shutdown (struct umodem_softc *);
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void umodem_modem (struct umodem_softc *, int);
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void umodem_break (struct umodem_softc *, int);
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usbd_status umodemstartread (struct umodem_softc *);
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void umodemreadcb (usbd_xfer_handle, usbd_private_handle,
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usbd_status status);
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void umodemwritecb (usbd_xfer_handle, usbd_private_handle,
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usbd_status status);
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USB_DECLARE_DRIVER(umodem);
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USB_MATCH(umodem)
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{
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USB_MATCH_START(umodem, uaa);
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usb_interface_descriptor_t *id;
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int cm, acm;
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if (!uaa->iface)
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return (UMATCH_NONE);
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id = usbd_get_interface_descriptor(uaa->iface);
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if (id == 0 ||
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id->bInterfaceClass != UCLASS_CDC ||
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id->bInterfaceSubClass != USUBCLASS_ABSTRACT_CONTROL_MODEL ||
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id->bInterfaceProtocol != UPROTO_CDC_AT)
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return (UMATCH_NONE);
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umodem_get_caps(uaa->device, &cm, &acm);
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if (!(cm & USB_CDC_CM_DOES_CM) ||
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!(cm & USB_CDC_CM_OVER_DATA) ||
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!(acm & USB_CDC_ACM_HAS_LINE))
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return (UMATCH_NONE);
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return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
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}
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USB_ATTACH(umodem)
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{
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USB_ATTACH_START(umodem, sc, uaa);
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usbd_device_handle dev = uaa->device;
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usb_interface_descriptor_t *id;
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usb_endpoint_descriptor_t *ed;
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usb_cdc_cm_descriptor_t *cmd;
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char devinfo[1024];
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usbd_status err;
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int data_ifaceno;
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int i;
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struct tty *tp;
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usbd_devinfo(uaa->device, 0, devinfo);
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USB_ATTACH_SETUP;
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sc->sc_udev = dev;
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sc->sc_ctl_iface = uaa->iface;
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id = usbd_get_interface_descriptor(sc->sc_ctl_iface);
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printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev),
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devinfo, id->bInterfaceClass, id->bInterfaceSubClass);
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sc->sc_ctl_iface_no = id->bInterfaceNumber;
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umodem_get_caps(dev, &sc->sc_cm_cap, &sc->sc_acm_cap);
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/* Get the data interface no. */
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cmd = umodem_get_desc(dev, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM);
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if (!cmd) {
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DPRINTF(("%s: no CM desc\n", USBDEVNAME(sc->sc_dev)));
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goto bad;
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}
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sc->sc_data_iface_no = data_ifaceno = cmd->bDataInterface;
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printf("%s: data interface %d, has %sCM over data, has %sbreak\n",
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USBDEVNAME(sc->sc_dev), data_ifaceno,
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sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ",
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sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no ");
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/* Get the data interface too. */
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for (i = 0; i < uaa->nifaces; i++) {
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if (uaa->ifaces[i]) {
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id = usbd_get_interface_descriptor(uaa->ifaces[i]);
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if (id->bInterfaceNumber == data_ifaceno) {
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sc->sc_data_iface = uaa->ifaces[i];
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uaa->ifaces[i] = 0;
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}
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}
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}
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if (!sc->sc_data_iface) {
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printf("%s: no data interface\n", USBDEVNAME(sc->sc_dev));
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goto bad;
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}
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/*
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* Find the bulk endpoints.
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* Iterate over all endpoints in the data interface and take note.
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*/
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sc->sc_bulkin_no = sc->sc_bulkout_no = -1;
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id = usbd_get_interface_descriptor(sc->sc_data_iface);
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for (i = 0; i < id->bNumEndpoints; i++) {
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ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i);
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if (!ed) {
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printf("%s: no endpoint descriptor for %d\n",
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USBDEVNAME(sc->sc_dev), i);
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goto bad;
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}
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if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
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(ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
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sc->sc_bulkin_no = ed->bEndpointAddress;
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} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
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(ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
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sc->sc_bulkout_no = ed->bEndpointAddress;
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}
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}
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if (sc->sc_bulkin_no == -1) {
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DPRINTF(("%s: Could not find data bulk in\n",
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USBDEVNAME(sc->sc_dev)));
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goto bad;
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}
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if (sc->sc_bulkout_no == -1) {
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DPRINTF(("%s: Could not find data bulk out\n",
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USBDEVNAME(sc->sc_dev)));
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goto bad;
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}
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if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) {
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sc->sc_cm_over_data = 1;
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} else {
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if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) {
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err = umodem_set_comm_feature(sc, UCDC_ABSTRACT_STATE,
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UCDC_DATA_MULTIPLEXED);
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if (err)
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goto bad;
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sc->sc_cm_over_data = 1;
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}
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}
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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sc->sc_tty = tp = ttymalloc();
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#elif defined(__FreeBSD__)
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sc->sc_tty = tp = ttymalloc(sc->sc_tty);
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#endif
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tp->t_oproc = umodemstart;
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tp->t_param = umodemparam;
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tp->t_stop = umodemstop;
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DPRINTF(("umodem_attach: tty_attach %p\n", tp));
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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tty_attach(tp);
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#endif
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#if defined(__FreeBSD__)
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DPRINTF(("umodem_attach: make_dev: umodem%d\n", device_get_unit(self)));
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sc->dev = make_dev(&umodem_cdevsw, device_get_unit(self),
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UID_UUCP, GID_DIALER, 0660,
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"umodem%d", device_get_unit(self));
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sc->dev->si_tty = tp;
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#endif
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sc->sc_dtr = -1;
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USB_ATTACH_SUCCESS_RETURN;
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bad:
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DPRINTF(("umodem_attach: BAD -> DYING\n"));
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sc->sc_dying = 1;
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USB_ATTACH_ERROR_RETURN;
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}
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void
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umodem_get_caps(dev, cm, acm)
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usbd_device_handle dev;
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int *cm, *acm;
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{
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usb_cdc_cm_descriptor_t *cmd;
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usb_cdc_acm_descriptor_t *cad;
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*cm = *acm = 0;
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cmd = umodem_get_desc(dev, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM);
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if (!cmd) {
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DPRINTF(("umodem_get_desc: no CM desc\n"));
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return;
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}
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*cm = cmd->bmCapabilities;
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cad = umodem_get_desc(dev, UDESC_CS_INTERFACE, UDESCSUB_CDC_ACM);
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if (!cad) {
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DPRINTF(("umodem_get_desc: no ACM desc\n"));
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return;
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}
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*acm = cad->bmCapabilities;
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}
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void
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umodemstart(tp)
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struct tty *tp;
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{
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struct umodem_softc *sc;
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struct cblock *cbp;
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int s;
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u_char *data;
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int cnt;
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USB_GET_SC(umodem, UMODEMUNIT(tp->t_dev), sc);
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if (sc->sc_dying)
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return;
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s = spltty();
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if (ISSET(tp->t_state, TS_BUSY | TS_TIMEOUT | TS_TTSTOP)) {
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ttwwakeup(tp);
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DPRINTFN(4,("umodemstart: stopped\n"));
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goto out;
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}
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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if (tp->t_outq.c_cc <= tp->t_lowat) {
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if (ISSET(tp->t_state, TS_ASLEEP)) {
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CLR(tp->t_state, TS_ASLEEP);
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wakeup(&tp->t_outq);
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}
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selwakeup(&tp->t_wsel);
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if (tp->t_outq.c_cc == 0)
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goto out;
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}
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#elif defined(__FreeBSD__)
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if (tp->t_outq.c_cc <= tp->t_olowat) {
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if (ISSET(tp->t_state, TS_SO_OLOWAT)) {
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CLR(tp->t_state, TS_SO_OLOWAT);
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wakeup(TSA_OLOWAT(tp));
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}
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selwakeup(&tp->t_wsel);
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if (tp->t_outq.c_cc == 0) {
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if (ISSET(tp->t_state, TS_BUSY | TS_SO_OCOMPLETE) ==
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TS_SO_OCOMPLETE && tp->t_outq.c_cc == 0) {
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CLR(tp->t_state, TS_SO_OCOMPLETE);
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wakeup(TSA_OCOMPLETE(tp));
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}
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goto out;
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}
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}
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#endif
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/* Grab the first contiguous region of buffer space. */
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data = tp->t_outq.c_cf;
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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cnt = ndqb(&tp->t_outq, 0);
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#elif defined(__FreeBSD__)
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cbp = (struct cblock *) ((intptr_t) tp->t_outq.c_cf & ~CROUND);
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cnt = min((char *) (cbp+1) - tp->t_outq.c_cf, tp->t_outq.c_cc);
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#endif
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if (cnt == 0) {
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DPRINTF(("umodemstart: cnt==0\n"));
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splx(s);
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return;
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}
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SET(tp->t_state, TS_BUSY);
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DPRINTFN(4,("umodemstart: %d chars\n", cnt));
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/* XXX what can we do on error? */
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usbd_setup_xfer(sc->sc_oxfer, sc->sc_bulkout_pipe,
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(usbd_private_handle)sc, data, cnt,
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0, USBD_NO_TIMEOUT, umodemwritecb);
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(void)usbd_transfer(sc->sc_oxfer);
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ttwwakeup(tp);
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out:
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splx(s);
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}
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|
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void
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umodemwritecb(xfer, priv, status)
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usbd_xfer_handle xfer;
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usbd_private_handle priv;
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usbd_status status;
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{
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struct umodem_softc *sc = (struct umodem_softc *)priv;
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struct tty *tp = sc->sc_tty;
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u_int32_t cc;
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int s;
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DPRINTFN(5,("umodemwritecb: status=%d\n", status));
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if (status == USBD_CANCELLED)
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return;
|
|
|
|
if (status != USBD_NORMAL_COMPLETION) {
|
|
DPRINTF(("umodemwritecb: status=%d\n", status));
|
|
usbd_clear_endpoint_stall_async(sc->sc_bulkin_pipe);
|
|
/* XXX we should restart after some delay. */
|
|
return;
|
|
}
|
|
|
|
usbd_get_xfer_status(xfer, 0, 0, &cc, 0);
|
|
DPRINTFN(5,("umodemwritecb: cc=%d\n", cc));
|
|
|
|
s = spltty();
|
|
CLR(tp->t_state, TS_BUSY);
|
|
if (ISSET(tp->t_state, TS_FLUSH))
|
|
CLR(tp->t_state, TS_FLUSH);
|
|
else
|
|
ndflush(&tp->t_outq, cc);
|
|
(*linesw[tp->t_line].l_start)(tp);
|
|
splx(s);
|
|
}
|
|
|
|
int
|
|
umodemparam(tp, t)
|
|
struct tty *tp;
|
|
struct termios *t;
|
|
{
|
|
struct umodem_softc *sc;
|
|
usb_cdc_line_state_t ls;
|
|
|
|
USB_GET_SC(umodem, UMODEMUNIT(tp->t_dev), sc);
|
|
|
|
if (sc->sc_dying)
|
|
return (EIO);
|
|
|
|
/* Check requested parameters. */
|
|
if (t->c_ospeed < 0)
|
|
return (EINVAL);
|
|
if (t->c_ispeed && t->c_ispeed != t->c_ospeed)
|
|
return (EINVAL);
|
|
|
|
/*
|
|
* If there were no changes, don't do anything. This avoids dropping
|
|
* input and improves performance when all we did was frob things like
|
|
* VMIN and VTIME.
|
|
*/
|
|
if (tp->t_ospeed == t->c_ospeed &&
|
|
tp->t_cflag == t->c_cflag)
|
|
return (0);
|
|
|
|
/* And copy to tty. */
|
|
tp->t_ispeed = 0;
|
|
tp->t_ospeed = t->c_ospeed;
|
|
tp->t_cflag = t->c_cflag;
|
|
|
|
USETDW(ls.dwDTERate, t->c_ospeed);
|
|
if (ISSET(t->c_cflag, CSTOPB))
|
|
ls.bCharFormat = UCDC_STOP_BIT_2;
|
|
else
|
|
ls.bCharFormat = UCDC_STOP_BIT_1;
|
|
if (ISSET(t->c_cflag, PARENB)) {
|
|
if (ISSET(t->c_cflag, PARODD))
|
|
ls.bParityType = UCDC_PARITY_ODD;
|
|
else
|
|
ls.bParityType = UCDC_PARITY_EVEN;
|
|
} else
|
|
ls.bParityType = UCDC_PARITY_NONE;
|
|
switch (ISSET(t->c_cflag, CSIZE)) {
|
|
case CS5:
|
|
ls.bDataBits = 5;
|
|
break;
|
|
case CS6:
|
|
ls.bDataBits = 6;
|
|
break;
|
|
case CS7:
|
|
ls.bDataBits = 7;
|
|
break;
|
|
case CS8:
|
|
ls.bDataBits = 8;
|
|
break;
|
|
}
|
|
/* XXX what can we if it fails? */
|
|
(void)umodem_set_line_coding(sc, &ls);
|
|
|
|
/*
|
|
* Update the tty layer's idea of the carrier bit, in case we changed
|
|
* CLOCAL or MDMBUF. We don't hang up here; we only do that by
|
|
* explicit request.
|
|
*/
|
|
(void) (*linesw[tp->t_line].l_modem)(tp, 1 /* XXX carrier */ );
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
umodemopen(dev, flag, mode, p)
|
|
dev_t dev;
|
|
int flag, mode;
|
|
struct proc *p;
|
|
{
|
|
int unit = UMODEMUNIT(dev);
|
|
struct umodem_softc *sc;
|
|
usbd_status err;
|
|
struct tty *tp;
|
|
int s;
|
|
int error;
|
|
|
|
USB_GET_SC_OPEN(umodem, unit, sc);
|
|
|
|
if (sc->sc_dying)
|
|
return (EIO);
|
|
|
|
#if defined(__NetBSD__) || defined(__OpenBBSD__)
|
|
if (ISSET(sc->sc_dev.dv_flags, DVF_ACTIVE) == 0)
|
|
return (ENXIO);
|
|
#endif
|
|
|
|
tp = sc->sc_tty;
|
|
|
|
DPRINTF(("%s: umodemopen: tp=%p\n", USBDEVNAME(sc->sc_dev), tp));
|
|
|
|
if (ISSET(tp->t_state, TS_ISOPEN) &&
|
|
ISSET(tp->t_state, TS_XCLUDE) &&
|
|
suser(p))
|
|
return (EBUSY);
|
|
|
|
/*
|
|
* Do the following iff this is a first open.
|
|
*/
|
|
s = spltty();
|
|
while (sc->sc_opening)
|
|
tsleep(&sc->sc_opening, PRIBIO, "umdmop", 0);
|
|
sc->sc_opening = 1;
|
|
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
|
|
#elif defined(__FreeBSD__)
|
|
if (!ISSET(tp->t_state, TS_ISOPEN)) {
|
|
#endif
|
|
struct termios t;
|
|
|
|
tp->t_dev = dev;
|
|
|
|
/*
|
|
* Initialize the termios status to the defaults. Add in the
|
|
* sticky bits from TIOCSFLAGS.
|
|
*/
|
|
t.c_ispeed = 0;
|
|
t.c_ospeed = TTYDEF_SPEED;
|
|
t.c_cflag = TTYDEF_CFLAG;
|
|
/* Make sure umodemparam() will do something. */
|
|
tp->t_ospeed = 0;
|
|
(void) umodemparam(tp, &t);
|
|
tp->t_iflag = TTYDEF_IFLAG;
|
|
tp->t_oflag = TTYDEF_OFLAG;
|
|
tp->t_lflag = TTYDEF_LFLAG;
|
|
ttychars(tp);
|
|
ttsetwater(tp);
|
|
|
|
/*
|
|
* Turn on DTR. We must always do this, even if carrier is not
|
|
* present, because otherwise we'd have to use TIOCSDTR
|
|
* immediately after setting CLOCAL, which applications do not
|
|
* expect. We always assert DTR while the device is open
|
|
* unless explicitly requested to deassert it.
|
|
*/
|
|
umodem_modem(sc, 1);
|
|
|
|
DPRINTF(("umodemopen: open pipes\n"));
|
|
|
|
/* Open the bulk pipes */
|
|
err = usbd_open_pipe(sc->sc_data_iface, sc->sc_bulkin_no, 0,
|
|
&sc->sc_bulkin_pipe);
|
|
if (err) {
|
|
DPRINTF(("%s: cannot open bulk out pipe (addr %d)\n",
|
|
USBDEVNAME(sc->sc_dev), sc->sc_bulkin_no));
|
|
return (EIO);
|
|
}
|
|
err = usbd_open_pipe(sc->sc_data_iface, sc->sc_bulkout_no,
|
|
USBD_EXCLUSIVE_USE, &sc->sc_bulkout_pipe);
|
|
if (err) {
|
|
DPRINTF(("%s: cannot open bulk in pipe (addr %d)\n",
|
|
USBDEVNAME(sc->sc_dev), sc->sc_bulkout_no));
|
|
usbd_close_pipe(sc->sc_bulkin_pipe);
|
|
return (EIO);
|
|
}
|
|
|
|
/* Allocate a request and an input buffer and start reading. */
|
|
sc->sc_ixfer = usbd_alloc_xfer(sc->sc_udev);
|
|
if (sc->sc_ixfer == 0) {
|
|
usbd_close_pipe(sc->sc_bulkin_pipe);
|
|
usbd_close_pipe(sc->sc_bulkout_pipe);
|
|
return (ENOMEM);
|
|
}
|
|
sc->sc_oxfer = usbd_alloc_xfer(sc->sc_udev);
|
|
if (sc->sc_oxfer == 0) {
|
|
usbd_close_pipe(sc->sc_bulkin_pipe);
|
|
usbd_close_pipe(sc->sc_bulkout_pipe);
|
|
usbd_free_xfer(sc->sc_ixfer);
|
|
return (ENOMEM);
|
|
}
|
|
sc->sc_ibuf = malloc(UMODEMIBUFSIZE, M_USBDEV, M_WAITOK);
|
|
umodemstartread(sc);
|
|
}
|
|
sc->sc_opening = 0;
|
|
wakeup(&sc->sc_opening);
|
|
splx(s);
|
|
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
error = ttyopen(tp, UMODEMDIALOUT(dev), ISSET(flag, O_NONBLOCK));
|
|
if (error)
|
|
goto bad;
|
|
#elif defined(__FreeBSD__)
|
|
error = ttyopen(dev, tp);
|
|
if (error)
|
|
goto bad;
|
|
#endif
|
|
|
|
error = (*linesw[tp->t_line].l_open)(dev, tp);
|
|
if (error)
|
|
goto bad;
|
|
|
|
return (0);
|
|
|
|
bad:
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
|
|
#elif defined(__FreeBSD__)
|
|
if (!ISSET(tp->t_state, TS_ISOPEN)) {
|
|
#endif
|
|
/*
|
|
* We failed to open the device, and nobody else had it opened.
|
|
* Clean up the state as appropriate.
|
|
*/
|
|
umodem_cleanup(sc);
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
usbd_status
|
|
umodemstartread(sc)
|
|
struct umodem_softc *sc;
|
|
{
|
|
usbd_status err;
|
|
|
|
DPRINTFN(5,("umodemstartread: start\n"));
|
|
usbd_setup_xfer(sc->sc_ixfer, sc->sc_bulkin_pipe,
|
|
(usbd_private_handle)sc,
|
|
sc->sc_ibuf, UMODEMIBUFSIZE, USBD_SHORT_XFER_OK,
|
|
USBD_NO_TIMEOUT, umodemreadcb);
|
|
|
|
err = usbd_transfer(sc->sc_ixfer);
|
|
if (err != USBD_IN_PROGRESS)
|
|
return (err);
|
|
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
void
|
|
umodemreadcb(xfer, p, status)
|
|
usbd_xfer_handle xfer;
|
|
usbd_private_handle p;
|
|
usbd_status status;
|
|
{
|
|
struct umodem_softc *sc = (struct umodem_softc *)p;
|
|
struct tty *tp = sc->sc_tty;
|
|
int (*rint) (int c, struct tty *tp) = linesw[tp->t_line].l_rint;
|
|
usbd_status err;
|
|
u_int32_t cc;
|
|
u_char *cp;
|
|
int s;
|
|
|
|
if (status == USBD_CANCELLED)
|
|
return;
|
|
|
|
if (status != USBD_NORMAL_COMPLETION) {
|
|
DPRINTF(("umodemreadcb: status=%d\n", status));
|
|
usbd_clear_endpoint_stall_async(sc->sc_bulkin_pipe);
|
|
/* XXX we should restart after some delay. */
|
|
return;
|
|
}
|
|
|
|
usbd_get_xfer_status(xfer, 0, (void **)&cp, &cc, 0);
|
|
DPRINTFN(5,("umodemreadcb: got %d chars, tp=%p\n", cc, tp));
|
|
s = spltty();
|
|
/* Give characters to tty layer. */
|
|
while (cc-- > 0) {
|
|
DPRINTFN(7,("umodemreadcb: char=0x%02x\n", *cp));
|
|
if ((*rint)(*cp++, tp) == -1) {
|
|
/* XXX what should we do? */
|
|
break;
|
|
}
|
|
}
|
|
splx(s);
|
|
|
|
err = umodemstartread(sc);
|
|
if (err) {
|
|
printf("%s: read start failed\n", USBDEVNAME(sc->sc_dev));
|
|
/* XXX what should we dow now? */
|
|
}
|
|
}
|
|
|
|
int
|
|
umodemclose(dev, flag, mode, p)
|
|
dev_t dev;
|
|
int flag, mode;
|
|
struct proc *p;
|
|
{
|
|
struct umodem_softc *sc;
|
|
struct tty *tp;
|
|
int s;
|
|
|
|
USB_GET_SC(umodem, UMODEMUNIT(dev), sc);
|
|
|
|
tp = sc->sc_tty;
|
|
|
|
DPRINTF(("%s: umodemclose sc_tty=%p\n", USBDEVNAME(sc->sc_dev), tp));
|
|
|
|
if (!ISSET(tp->t_state, TS_ISOPEN))
|
|
return (0);
|
|
|
|
DPRINTF(("%s: umodemclose lclose(%p,%d)\n", USBDEVNAME(sc->sc_dev), tp,flag));
|
|
|
|
s=spltty();
|
|
DPRINTF(("%s: umodemclose lclose=%p\n", USBDEVNAME(sc->sc_dev), linesw[tp->t_line].l_close));
|
|
(*linesw[tp->t_line].l_close)(tp, flag);
|
|
|
|
DPRINTF(("%s: umodemclose ttyclose(%p)\n", USBDEVNAME(sc->sc_dev), tp));
|
|
ttyclose(tp);
|
|
splx(s);
|
|
|
|
DPRINTF(("%s: umodemclose sc->sc_dying=%d\n", USBDEVNAME(sc->sc_dev), sc->sc_dying));
|
|
if (sc->sc_dying)
|
|
return (0);
|
|
|
|
DPRINTF(("%s: umodemclose tp->t_state=%d\n", USBDEVNAME(sc->sc_dev), tp->t_state));
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
|
|
#elif defined(__FreeBSD__)
|
|
if (!ISSET(tp->t_state, TS_ISOPEN)) {
|
|
#endif
|
|
/*
|
|
* Although we got a last close, the device may still be in
|
|
* use; e.g. if this was the dialout node, and there are still
|
|
* processes waiting for carrier on the non-dialout node.
|
|
*/
|
|
DPRINTF(("%s: umodemclose umodem_cleanup(%p)\n", USBDEVNAME(sc->sc_dev), sc));
|
|
umodem_cleanup(sc);
|
|
}
|
|
DPRINTF(("%s: umodemclose return\n", USBDEVNAME(sc->sc_dev)));
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
umodem_cleanup(sc)
|
|
struct umodem_softc *sc;
|
|
{
|
|
umodem_shutdown(sc);
|
|
|
|
DPRINTFN(5, ("%s: umodem_cleanup: closing pipes\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
|
|
usbd_abort_pipe(sc->sc_bulkin_pipe);
|
|
usbd_close_pipe(sc->sc_bulkin_pipe);
|
|
usbd_abort_pipe(sc->sc_bulkout_pipe);
|
|
usbd_close_pipe(sc->sc_bulkout_pipe);
|
|
usbd_free_xfer(sc->sc_ixfer);
|
|
usbd_free_xfer(sc->sc_oxfer);
|
|
free(sc->sc_ibuf, M_USBDEV);
|
|
}
|
|
|
|
int
|
|
umodemread(dev, uio, flag)
|
|
dev_t dev;
|
|
struct uio *uio;
|
|
int flag;
|
|
{
|
|
struct umodem_softc *sc;
|
|
struct tty *tp;
|
|
|
|
USB_GET_SC(umodem, UMODEMUNIT(dev), sc);
|
|
|
|
tp = sc->sc_tty;
|
|
|
|
if (sc->sc_dying)
|
|
return (EIO);
|
|
|
|
return ((*linesw[tp->t_line].l_read)(tp, uio, flag));
|
|
}
|
|
|
|
int
|
|
umodemwrite(dev, uio, flag)
|
|
dev_t dev;
|
|
struct uio *uio;
|
|
int flag;
|
|
{
|
|
struct umodem_softc *sc;
|
|
struct tty *tp;
|
|
|
|
USB_GET_SC(umodem, UMODEMUNIT(dev), sc);
|
|
|
|
tp = sc->sc_tty;
|
|
|
|
if (sc->sc_dying)
|
|
return (EIO);
|
|
|
|
return ((*linesw[tp->t_line].l_write)(tp, uio, flag));
|
|
}
|
|
|
|
void
|
|
umodemstop(tp, flag)
|
|
struct tty *tp;
|
|
int flag;
|
|
{
|
|
struct umodem_softc *sc;
|
|
int s;
|
|
|
|
USB_GET_SC(umodem, UMODEMUNIT(tp->t_dev), sc);
|
|
|
|
DPRINTF(("umodemstop: %d\n", flag));
|
|
s = spltty();
|
|
if (ISSET(tp->t_state, TS_BUSY)) {
|
|
DPRINTF(("umodemstop: XXX\n"));
|
|
/* XXX do what? */
|
|
if (!ISSET(tp->t_state, TS_TTSTOP))
|
|
SET(tp->t_state, TS_FLUSH);
|
|
}
|
|
splx(s);
|
|
}
|
|
|
|
struct tty *
|
|
umodemtty(dev)
|
|
dev_t dev;
|
|
{
|
|
struct umodem_softc *sc;
|
|
struct tty *tp;
|
|
|
|
USB_GET_SC(umodem, UMODEMUNIT(dev), sc);
|
|
|
|
tp = sc->sc_tty;
|
|
|
|
return (tp);
|
|
}
|
|
|
|
int
|
|
umodemioctl(dev, cmd, data, flag, p)
|
|
dev_t dev;
|
|
u_long cmd;
|
|
caddr_t data;
|
|
int flag;
|
|
struct proc *p;
|
|
{
|
|
struct umodem_softc *sc;
|
|
struct tty *tp;
|
|
int error;
|
|
int s;
|
|
int bits;
|
|
|
|
USB_GET_SC(umodem, UMODEMUNIT(dev), sc);
|
|
|
|
tp = sc->sc_tty;
|
|
|
|
if (sc->sc_dying)
|
|
return (EIO);
|
|
|
|
DPRINTF(("umodemioctl: cmd=0x%08lx\n", cmd));
|
|
|
|
error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p);
|
|
if (error >= 0)
|
|
return (error);
|
|
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
error = ttioctl(tp, cmd, data, flag, p);
|
|
#elif defined(__FreeBSD__)
|
|
error = ttioctl(tp, cmd, data, flag);
|
|
#endif
|
|
if (error >= 0)
|
|
return (error);
|
|
|
|
DPRINTF(("umodemioctl: our cmd=0x%08lx\n", cmd));
|
|
s = spltty();
|
|
|
|
switch (cmd) {
|
|
case TIOCSBRK:
|
|
umodem_break(sc, 1);
|
|
break;
|
|
|
|
case TIOCCBRK:
|
|
umodem_break(sc, 0);
|
|
break;
|
|
|
|
case TIOCSDTR:
|
|
umodem_modem(sc, 1);
|
|
break;
|
|
|
|
case TIOCCDTR:
|
|
umodem_modem(sc, 0);
|
|
break;
|
|
|
|
case TIOCMGET:
|
|
bits = TIOCM_LE;
|
|
if(sc->sc_dtr)
|
|
bits |= TIOCM_DTR;
|
|
*(int *)data = bits;
|
|
break;
|
|
|
|
case TIOCMSET:
|
|
break;
|
|
|
|
case USB_GET_CM_OVER_DATA:
|
|
*(int *)data = sc->sc_cm_over_data;
|
|
break;
|
|
|
|
case USB_SET_CM_OVER_DATA:
|
|
if (*(int *)data != sc->sc_cm_over_data) {
|
|
/* XXX change it */
|
|
}
|
|
break;
|
|
|
|
default:
|
|
DPRINTF(("umodemioctl: unknown\n"));
|
|
error = ENOTTY;
|
|
splx(s);
|
|
return (error);
|
|
}
|
|
|
|
splx(s);
|
|
return(0);
|
|
}
|
|
|
|
void
|
|
umodem_shutdown(sc)
|
|
struct umodem_softc *sc;
|
|
{
|
|
struct tty *tp = sc->sc_tty;
|
|
|
|
DPRINTF(("%s: umodem_shutdown\n", USBDEVNAME(sc->sc_dev)));
|
|
/*
|
|
* Hang up if necessary. Wait a bit, so the other side has time to
|
|
* notice even if we immediately open the port again.
|
|
*/
|
|
if (ISSET(tp->t_cflag, HUPCL)) {
|
|
umodem_modem(sc, 0);
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
(void) tsleep(sc, TTIPRI, ttclos, hz);
|
|
#elif defined(__FreeBSD__)
|
|
(void) tsleep(sc, TTIPRI, "umdmsd", hz);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void
|
|
umodem_modem(sc, onoff)
|
|
struct umodem_softc *sc;
|
|
int onoff;
|
|
{
|
|
usb_device_request_t req;
|
|
|
|
DPRINTF(("%s: umodem_modem: onoff=%d\n", USBDEVNAME(sc->sc_dev),onoff));
|
|
|
|
if (sc->sc_dtr == onoff)
|
|
return;
|
|
|
|
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
|
|
req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
|
|
USETW(req.wValue, onoff ? UCDC_LINE_DTR : 0);
|
|
USETW(req.wIndex, sc->sc_ctl_iface_no);
|
|
USETW(req.wLength, 0);
|
|
|
|
(void)usbd_do_request(sc->sc_udev, &req, 0);
|
|
|
|
sc->sc_dtr = onoff;
|
|
}
|
|
|
|
void
|
|
umodem_break(sc, onoff)
|
|
struct umodem_softc *sc;
|
|
int onoff;
|
|
{
|
|
usb_device_request_t req;
|
|
|
|
DPRINTF(("%s: umodem_break: onoff=%d\n", USBDEVNAME(sc->sc_dev),onoff));
|
|
|
|
if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK))
|
|
return;
|
|
|
|
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
|
|
req.bRequest = UCDC_SEND_BREAK;
|
|
USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
|
|
USETW(req.wIndex, sc->sc_ctl_iface_no);
|
|
USETW(req.wLength, 0);
|
|
|
|
(void)usbd_do_request(sc->sc_udev, &req, 0);
|
|
}
|
|
|
|
void *
|
|
umodem_get_desc(dev, type, subtype)
|
|
usbd_device_handle dev;
|
|
int type;
|
|
int subtype;
|
|
{
|
|
usb_descriptor_t *desc;
|
|
usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev);
|
|
uByte *p = (uByte *)cd;
|
|
uByte *end = p + UGETW(cd->wTotalLength);
|
|
|
|
while (p < end) {
|
|
desc = (usb_descriptor_t *)p;
|
|
if (desc->bDescriptorType == type &&
|
|
desc->bDescriptorSubtype == subtype)
|
|
return (desc);
|
|
p += desc->bLength;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
usbd_status
|
|
umodem_set_comm_feature(sc, feature, state)
|
|
struct umodem_softc *sc;
|
|
int feature;
|
|
int state;
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status err;
|
|
usb_cdc_abstract_state_t ast;
|
|
|
|
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
|
|
req.bRequest = UCDC_SET_COMM_FEATURE;
|
|
USETW(req.wValue, feature);
|
|
USETW(req.wIndex, sc->sc_ctl_iface_no);
|
|
USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH);
|
|
USETW(ast.wState, state);
|
|
|
|
err = usbd_do_request(sc->sc_udev, &req, &ast);
|
|
if (err) {
|
|
DPRINTF(("%s: umodem_set_comm_feat: feature=%d failed, err=%d\n",
|
|
USBDEVNAME(sc->sc_dev), feature, err));
|
|
return (err);
|
|
}
|
|
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
usbd_status
|
|
umodem_set_line_coding(sc, state)
|
|
struct umodem_softc *sc;
|
|
usb_cdc_line_state_t *state;
|
|
{
|
|
usb_device_request_t req;
|
|
usbd_status err;
|
|
|
|
DPRINTF(("%s: umodem_set_line_cod: rate=%d fmt=%d parity=%d bits=%d\n",
|
|
USBDEVNAME(sc->sc_dev), UGETDW(state->dwDTERate),
|
|
state->bCharFormat, state->bParityType, state->bDataBits));
|
|
|
|
if (bcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) {
|
|
DPRINTF(("%s: umodem_set_line_coding: already set\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
|
|
req.bRequest = UCDC_SET_LINE_CODING;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, sc->sc_ctl_iface_no);
|
|
USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
|
|
|
|
err = usbd_do_request(sc->sc_udev, &req, state);
|
|
if (err) {
|
|
DPRINTF(("%s: umodem_set_line_coding: failed, err=%d\n",
|
|
USBDEVNAME(sc->sc_dev), err));
|
|
return (err);
|
|
}
|
|
|
|
sc->sc_line_state = *state;
|
|
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
int
|
|
umodem_activate(self, act)
|
|
device_ptr_t self;
|
|
enum devact act;
|
|
{
|
|
struct umodem_softc *sc = (struct umodem_softc *)self;
|
|
|
|
switch (act) {
|
|
case DVACT_ACTIVATE:
|
|
return (EOPNOTSUPP);
|
|
break;
|
|
|
|
case DVACT_DEACTIVATE:
|
|
sc->sc_dying = 1;
|
|
break;
|
|
}
|
|
return (0);
|
|
}
|
|
#endif
|
|
|
|
USB_DETACH(umodem)
|
|
{
|
|
USB_DETACH_START(umodem, sc);
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
int maj, mn;
|
|
|
|
DPRINTF(("umodem_detach: sc=%p flags=%d tp=%p\n",
|
|
sc, flags, sc->sc_tty));
|
|
#elif defined(__FreeBSD__)
|
|
DPRINTF(("umodem_detach: sc=%p flags=%d, tp=%p\n",
|
|
sc, 0, sc->sc_tty));
|
|
#endif
|
|
|
|
sc->sc_dying = 1;
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (sc->sc_tty == 0) {
|
|
DPRINTF(("umodem_detach: no tty\n"));
|
|
return (0);
|
|
}
|
|
#endif
|
|
|
|
/* use refernce count? XXX */
|
|
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
/* locate the major number */
|
|
for (maj = 0; maj < nchrdev; maj++)
|
|
if (cdevsw[maj].d_open == umodemopen)
|
|
break;
|
|
|
|
/* Nuke the vnodes for any open instances. */
|
|
mn = self->dv_unit;
|
|
vdevgone(maj, mn, mn, VCHR);
|
|
vdevgone(maj, mn, mn | UMODEMDIALOUT_MASK, VCHR);
|
|
vdevgone(maj, mn, mn | UMODEMCALLUNIT_MASK, VCHR);
|
|
#elif defined(__FreeBSD__)
|
|
/* XXX not yet implemented */
|
|
#endif
|
|
|
|
#if defined(__FreeBSD__)
|
|
destroy_dev(sc->dev);
|
|
#endif
|
|
|
|
/* Detach and free the tty. */
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
tty_detach(sc->sc_tty);
|
|
ttyfree(sc->sc_tty);
|
|
sc->sc_tty = 0;
|
|
#endif
|
|
|
|
return (0);
|
|
}
|
|
|
|
#if defined(__FreeBSD__)
|
|
DRIVER_MODULE(umodem, uhub, umodem_driver, umodem_devclass, usbd_driver_load,0);
|
|
#endif
|