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-rw-r--r--sys/dev/usb/umodem.c1199
1 files changed, 1199 insertions, 0 deletions
diff --git a/sys/dev/usb/umodem.c b/sys/dev/usb/umodem.c
new file mode 100644
index 0000000..d0775f0
--- /dev/null
+++ b/sys/dev/usb/umodem.c
@@ -0,0 +1,1199 @@
+/* $NetBSD: umodem.c,v 1.5 1999/01/08 11:58:25 augustss Exp $ */
+/* $FreeBSD$ */
+
+/*
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Lennart Augustsson (lennart@augustsson.net) at
+ * Carlstedt Research & Technology.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the NetBSD
+ * Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Comm Class spec: http://www.usb.org/developers/data/devclass/usbcdc10.pdf
+ * http://www.usb.org/developers/data/devclass/usbcdc11.pdf
+ */
+
+/*
+ * TODO:
+ * - Add error recovery in various places; the big problem is what
+ * to do in a callback if there is an error.
+ * - Implement a Call Device for modems without multiplexed commands.
+ *
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+#include <sys/device.h>
+#include <sys/ioctl.h>
+#elif defined(__FreeBSD__)
+#include <sys/bus.h>
+#include <sys/ioccom.h>
+#include <sys/fcntl.h>
+#endif
+#include <sys/conf.h>
+#include <sys/tty.h>
+#include <sys/clist.h>
+#include <sys/file.h>
+#if __FreeBSD_version >= 500014
+#include <sys/selinfo.h>
+#else
+#include <sys/select.h>
+#endif
+#include <sys/proc.h>
+#include <sys/vnode.h>
+#include <sys/poll.h>
+#include <sys/sysctl.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbcdc.h>
+
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdi_util.h>
+#include <dev/usb/usbdevs.h>
+#include <dev/usb/usb_quirks.h>
+
+#include <dev/usb/usbdevs.h>
+
+#ifdef USB_DEBUG
+#define DPRINTF(x) if(umodemdebug) logprintf x
+#define DPRINTFN(n, x) if(umodemdebug > (n)) logprintf x
+int umodemdebug = 0;
+SYSCTL_NODE(_hw_usb, OID_AUTO, umodem, CTLFLAG_RW, 0, "USB umodem");
+SYSCTL_INT(_hw_usb_umodem, OID_AUTO, debug, CTLFLAG_RW,
+ &umodemdebug, 0, "umodem debug level");
+#else
+#define DPRINTF(x)
+#define DPRINTFN(n, x)
+#endif
+
+/* Macros to clear/set/test flags. */
+#define SET(t, f) (t) |= (f)
+#define CLR(t, f) (t) &= ~((unsigned)(f))
+#define ISSET(t, f) ((t) & (f))
+
+#define UMODEMUNIT_MASK 0x3ffff
+#define UMODEMDIALOUT_MASK 0x80000
+#define UMODEMCALLUNIT_MASK 0x40000
+
+#define UMODEMUNIT(x) (minor(x) & UMODEMUNIT_MASK)
+#define UMODEMDIALOUT(x) (minor(x) & UMODEMDIALOUT_MASK)
+#define UMODEMCALLUNIT(x) (minor(x) & UMODEMCALLUNIT_MASK)
+
+#define UMODEMIBUFSIZE 64
+
+struct umodem_softc {
+ USBBASEDEVICE sc_dev; /* base device */
+
+ usbd_device_handle sc_udev; /* USB device */
+
+ int sc_ctl_iface_no;
+ usbd_interface_handle sc_ctl_iface; /* control interface */
+ int sc_data_iface_no;
+ usbd_interface_handle sc_data_iface; /* data interface */
+
+ int sc_bulkin_no; /* bulk in endpoint address */
+ usbd_pipe_handle sc_bulkin_pipe; /* bulk in pipe */
+ usbd_xfer_handle sc_ixfer; /* read request */
+ u_char *sc_ibuf; /* read buffer */
+
+ int sc_bulkout_no; /* bulk out endpoint address */
+ usbd_pipe_handle sc_bulkout_pipe;/* bulk out pipe */
+ usbd_xfer_handle sc_oxfer; /* read request */
+
+ int sc_cm_cap; /* CM capabilities */
+ int sc_acm_cap; /* ACM capabilities */
+
+ int sc_cm_over_data;
+
+ struct tty *sc_tty; /* our tty */
+
+ usb_cdc_line_state_t sc_line_state; /* current line state */
+ u_char sc_dtr; /* current DTR state */
+
+ u_char sc_opening; /* lock during open */
+ u_char sc_dying; /* disconnecting */
+
+#if defined(__FreeBSD__)
+ dev_t dev; /* special device node */
+#endif
+};
+
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+cdev_decl(umodem);
+
+#elif defined(__FreeBSD__)
+d_open_t umodemopen;
+d_close_t umodemclose;
+d_read_t umodemread;
+d_write_t umodemwrite;
+d_ioctl_t umodemioctl;
+
+#define UMODEM_CDEV_MAJOR 124
+
+static struct cdevsw umodem_cdevsw = {
+ /* open */ umodemopen,
+ /* close */ umodemclose,
+ /* read */ umodemread,
+ /* write */ umodemwrite,
+ /* ioctl */ umodemioctl,
+ /* poll */ ttypoll,
+ /* mmap */ nommap,
+ /* strategy */ nostrategy,
+ /* name */ "umodem",
+ /* maj */ UMODEM_CDEV_MAJOR,
+ /* dump */ nodump,
+ /* psize */ nopsize,
+ /* flags */ D_TTY | D_KQFILTER,
+#if __FreeBSD_version < 500014
+ /* bmaj */ -1,
+#endif
+ /* kqfilter */ ttykqfilter,
+};
+#endif
+
+void *umodem_get_desc
+ (usbd_device_handle dev, int type, int subtype);
+usbd_status umodem_set_comm_feature
+ (struct umodem_softc *sc, int feature, int state);
+usbd_status umodem_set_line_coding
+ (struct umodem_softc *sc, usb_cdc_line_state_t *state);
+
+void umodem_get_caps (usbd_device_handle, int *, int *);
+void umodem_cleanup (struct umodem_softc *);
+int umodemparam (struct tty *, struct termios *);
+void umodemstart (struct tty *);
+void umodemstop (struct tty *, int);
+struct tty * umodemtty (dev_t dev);
+void umodem_shutdown (struct umodem_softc *);
+void umodem_modem (struct umodem_softc *, int);
+void umodem_break (struct umodem_softc *, int);
+usbd_status umodemstartread (struct umodem_softc *);
+void umodemreadcb (usbd_xfer_handle, usbd_private_handle,
+ usbd_status status);
+void umodemwritecb (usbd_xfer_handle, usbd_private_handle,
+ usbd_status status);
+
+USB_DECLARE_DRIVER(umodem);
+
+USB_MATCH(umodem)
+{
+ USB_MATCH_START(umodem, uaa);
+ usb_interface_descriptor_t *id;
+ int cm, acm;
+
+ if (!uaa->iface)
+ return (UMATCH_NONE);
+
+ id = usbd_get_interface_descriptor(uaa->iface);
+ if (id == 0 ||
+ id->bInterfaceClass != UICLASS_CDC ||
+ id->bInterfaceSubClass != UISUBCLASS_ABSTRACT_CONTROL_MODEL ||
+ id->bInterfaceProtocol != UIPROTO_CDC_AT)
+ return (UMATCH_NONE);
+
+ umodem_get_caps(uaa->device, &cm, &acm);
+ if (!(cm & USB_CDC_CM_DOES_CM) ||
+ !(cm & USB_CDC_CM_OVER_DATA) ||
+ !(acm & USB_CDC_ACM_HAS_LINE))
+ return (UMATCH_NONE);
+
+ return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
+}
+
+USB_ATTACH(umodem)
+{
+ USB_ATTACH_START(umodem, sc, uaa);
+ usbd_device_handle dev = uaa->device;
+ usb_interface_descriptor_t *id;
+ usb_endpoint_descriptor_t *ed;
+ usb_cdc_cm_descriptor_t *cmd;
+ char devinfo[1024];
+ usbd_status err;
+ int data_ifaceno;
+ int i;
+ struct tty *tp;
+
+ usbd_devinfo(uaa->device, 0, devinfo);
+ USB_ATTACH_SETUP;
+
+ sc->sc_udev = dev;
+
+ sc->sc_ctl_iface = uaa->iface;
+ id = usbd_get_interface_descriptor(sc->sc_ctl_iface);
+ printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev),
+ devinfo, id->bInterfaceClass, id->bInterfaceSubClass);
+ sc->sc_ctl_iface_no = id->bInterfaceNumber;
+
+ umodem_get_caps(dev, &sc->sc_cm_cap, &sc->sc_acm_cap);
+
+ /* Get the data interface no. */
+ cmd = umodem_get_desc(dev, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM);
+ if (!cmd) {
+ DPRINTF(("%s: no CM desc\n", USBDEVNAME(sc->sc_dev)));
+ goto bad;
+ }
+ sc->sc_data_iface_no = data_ifaceno = cmd->bDataInterface;
+
+ printf("%s: data interface %d, has %sCM over data, has %sbreak\n",
+ USBDEVNAME(sc->sc_dev), data_ifaceno,
+ sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no ",
+ sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no ");
+
+
+ /* Get the data interface too. */
+ for (i = 0; i < uaa->nifaces; i++) {
+ if (uaa->ifaces[i]) {
+ id = usbd_get_interface_descriptor(uaa->ifaces[i]);
+ if (id->bInterfaceNumber == data_ifaceno) {
+ sc->sc_data_iface = uaa->ifaces[i];
+ uaa->ifaces[i] = 0;
+ }
+ }
+ }
+ if (!sc->sc_data_iface) {
+ printf("%s: no data interface\n", USBDEVNAME(sc->sc_dev));
+ goto bad;
+ }
+
+ /*
+ * Find the bulk endpoints.
+ * Iterate over all endpoints in the data interface and take note.
+ */
+ sc->sc_bulkin_no = sc->sc_bulkout_no = -1;
+
+ id = usbd_get_interface_descriptor(sc->sc_data_iface);
+ for (i = 0; i < id->bNumEndpoints; i++) {
+ ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i);
+ if (!ed) {
+ printf("%s: no endpoint descriptor for %d\n",
+ USBDEVNAME(sc->sc_dev), i);
+ goto bad;
+ }
+ if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
+ (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
+ sc->sc_bulkin_no = ed->bEndpointAddress;
+ } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
+ (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
+ sc->sc_bulkout_no = ed->bEndpointAddress;
+ }
+ }
+
+ if (sc->sc_bulkin_no == -1) {
+ DPRINTF(("%s: Could not find data bulk in\n",
+ USBDEVNAME(sc->sc_dev)));
+ goto bad;
+ }
+ if (sc->sc_bulkout_no == -1) {
+ DPRINTF(("%s: Could not find data bulk out\n",
+ USBDEVNAME(sc->sc_dev)));
+ goto bad;
+ }
+
+ if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) {
+ sc->sc_cm_over_data = 1;
+ } else {
+ if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) {
+ err = umodem_set_comm_feature(sc, UCDC_ABSTRACT_STATE,
+ UCDC_DATA_MULTIPLEXED);
+ if (err)
+ goto bad;
+ sc->sc_cm_over_data = 1;
+ }
+ }
+
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+ sc->sc_tty = tp = ttymalloc();
+#elif defined(__FreeBSD__)
+ sc->sc_tty = tp = ttymalloc(sc->sc_tty);
+#endif
+ tp->t_oproc = umodemstart;
+ tp->t_param = umodemparam;
+ tp->t_stop = umodemstop;
+ DPRINTF(("umodem_attach: tty_attach %p\n", tp));
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+ tty_attach(tp);
+#endif
+
+#if defined(__FreeBSD__)
+ DPRINTF(("umodem_attach: make_dev: umodem%d\n", device_get_unit(self)));
+ sc->dev = make_dev(&umodem_cdevsw, device_get_unit(self),
+ UID_UUCP, GID_DIALER, 0660,
+ "umodem%d", device_get_unit(self));
+ sc->dev->si_tty = tp;
+#endif
+
+ sc->sc_dtr = -1;
+
+ USB_ATTACH_SUCCESS_RETURN;
+
+ bad:
+ DPRINTF(("umodem_attach: BAD -> DYING\n"));
+ sc->sc_dying = 1;
+ USB_ATTACH_ERROR_RETURN;
+}
+
+void
+umodem_get_caps(usbd_device_handle dev, int *cm, int *acm)
+{
+ usb_cdc_cm_descriptor_t *cmd;
+ usb_cdc_acm_descriptor_t *cad;
+
+ *cm = *acm = 0;
+
+ cmd = umodem_get_desc(dev, UDESC_CS_INTERFACE, UDESCSUB_CDC_CM);
+ if (!cmd) {
+ DPRINTF(("umodem_get_desc: no CM desc\n"));
+ return;
+ }
+ *cm = cmd->bmCapabilities;
+
+ cad = umodem_get_desc(dev, UDESC_CS_INTERFACE, UDESCSUB_CDC_ACM);
+ if (!cad) {
+ DPRINTF(("umodem_get_desc: no ACM desc\n"));
+ return;
+ }
+ *acm = cad->bmCapabilities;
+}
+
+void
+umodemstart(struct tty *tp)
+{
+ struct umodem_softc *sc;
+ struct cblock *cbp;
+ int s;
+ u_char *data;
+ int cnt;
+
+ USB_GET_SC(umodem, UMODEMUNIT(tp->t_dev), sc);
+
+ if (sc->sc_dying)
+ return;
+
+ s = spltty();
+ if (ISSET(tp->t_state, TS_BUSY | TS_TIMEOUT | TS_TTSTOP)) {
+ ttwwakeup(tp);
+ DPRINTFN(4,("umodemstart: stopped\n"));
+ goto out;
+ }
+
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+ if (tp->t_outq.c_cc <= tp->t_lowat) {
+ if (ISSET(tp->t_state, TS_ASLEEP)) {
+ CLR(tp->t_state, TS_ASLEEP);
+ wakeup(&tp->t_outq);
+ }
+ selwakeup(&tp->t_wsel);
+ if (tp->t_outq.c_cc == 0)
+ goto out;
+ }
+#elif defined(__FreeBSD__)
+ if (tp->t_outq.c_cc <= tp->t_olowat) {
+ if (ISSET(tp->t_state, TS_SO_OLOWAT)) {
+ CLR(tp->t_state, TS_SO_OLOWAT);
+ wakeup(TSA_OLOWAT(tp));
+ }
+ selwakeup(&tp->t_wsel);
+ if (tp->t_outq.c_cc == 0) {
+ if (ISSET(tp->t_state, TS_BUSY | TS_SO_OCOMPLETE) ==
+ TS_SO_OCOMPLETE && tp->t_outq.c_cc == 0) {
+ CLR(tp->t_state, TS_SO_OCOMPLETE);
+ wakeup(TSA_OCOMPLETE(tp));
+ }
+ goto out;
+ }
+ }
+#endif
+
+ /* Grab the first contiguous region of buffer space. */
+ data = tp->t_outq.c_cf;
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+ cnt = ndqb(&tp->t_outq, 0);
+#elif defined(__FreeBSD__)
+ cbp = (struct cblock *) ((intptr_t) tp->t_outq.c_cf & ~CROUND);
+ cnt = min((char *) (cbp+1) - tp->t_outq.c_cf, tp->t_outq.c_cc);
+#endif
+
+ if (cnt == 0) {
+ DPRINTF(("umodemstart: cnt==0\n"));
+ splx(s);
+ return;
+ }
+
+ SET(tp->t_state, TS_BUSY);
+
+ DPRINTFN(4,("umodemstart: %d chars\n", cnt));
+ /* XXX what can we do on error? */
+ usbd_setup_xfer(sc->sc_oxfer, sc->sc_bulkout_pipe,
+ (usbd_private_handle)sc, data, cnt,
+ 0, USBD_NO_TIMEOUT, umodemwritecb);
+ (void)usbd_transfer(sc->sc_oxfer);
+
+ ttwwakeup(tp);
+out:
+ splx(s);
+}
+
+void
+umodemwritecb(usbd_xfer_handle xfer, usbd_private_handle priv,
+ usbd_status status)
+{
+ struct umodem_softc *sc = (struct umodem_softc *)priv;
+ struct tty *tp = sc->sc_tty;
+ u_int32_t cc;
+ int s;
+
+ DPRINTFN(5,("umodemwritecb: status=%d\n", status));
+
+ if (status == USBD_CANCELLED)
+ return;
+
+ if (status != USBD_NORMAL_COMPLETION) {
+ DPRINTF(("umodemwritecb: status=%d\n", status));
+ if (status == USBD_STALLED)
+ 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(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_t dev, int flag, int mode, usb_proc_ptr 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(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(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));
+ if (status == USBD_STALLED)
+ 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_t dev, int flag, int mode, usb_proc_ptr 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(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_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_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(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_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_t dev, u_long cmd, caddr_t data, int flag, usb_proc_ptr 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(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(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(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(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(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(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(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
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