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[src/trunk]: src/sys/dev/usb Add uxrcom driver for Exar XR21V141x USB serial ...



details:   https://anonhg.NetBSD.org/src/rev/4fbcd10a6325
branches:  trunk
changeset: 971038:4fbcd10a6325
user:      simonb <simonb%NetBSD.org@localhost>
date:      Sun Apr 12 01:10:53 2020 +0000

description:
Add uxrcom driver for Exar XR21V141x USB serial adapters.  Based in part
on the OpenBSD single-port XR21V1410 uxrcom driver, but adds support
for multi-port chipsets and uses the common umodem framework instead of
being a standalone driver.

Thanks to skrll@ for much USB clue and mrg@ for financing the
development of this driver.

diffstat:

 distrib/sets/lists/man/mi     |    5 +-
 share/man/man4/Makefile       |    6 +-
 share/man/man4/ucom.4         |    6 +-
 share/man/man4/uxrcom.4       |   79 ++++++++++
 sys/dev/usb/files.usb         |    7 +-
 sys/dev/usb/ukyopon.c         |    6 +-
 sys/dev/usb/umodem.c          |    6 +-
 sys/dev/usb/umodem_common.c   |   26 ++-
 sys/dev/usb/usbdevices.config |    5 +-
 sys/dev/usb/usbdevs           |    8 +-
 sys/dev/usb/uxrcom.c          |  323 ++++++++++++++++++++++++++++++++++++++++++
 11 files changed, 457 insertions(+), 20 deletions(-)

diffs (truncated from 674 to 300 lines):

diff -r 14294a6404db -r 4fbcd10a6325 distrib/sets/lists/man/mi
--- a/distrib/sets/lists/man/mi Sun Apr 12 00:04:45 2020 +0000
+++ b/distrib/sets/lists/man/mi Sun Apr 12 01:10:53 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.1686 2020/04/04 15:39:16 jdolecek Exp $
+# $NetBSD: mi,v 1.1687 2020/04/12 01:10:53 simonb Exp $
 #
 # Note: don't delete entries from here - mark them as "obsolete" instead.
 #
@@ -1957,6 +1957,7 @@
 ./usr/share/man/cat4/uvideo.0                  man-sys-catman          .cat
 ./usr/share/man/cat4/uvisor.0                  man-sys-catman          .cat
 ./usr/share/man/cat4/uvscom.0                  man-sys-catman          .cat
+./usr/share/man/cat4/uxrcom.0                  man-sys-catman          .cat
 ./usr/share/man/cat4/uyap.0                    man-sys-catman          .cat
 ./usr/share/man/cat4/uyurex.0                  man-obsolete            obsolete
 ./usr/share/man/cat4/vald.0                    man-sys-catman          .cat
@@ -5101,6 +5102,7 @@
 ./usr/share/man/html4/uvideo.html              man-sys-htmlman         html
 ./usr/share/man/html4/uvisor.html              man-sys-htmlman         html
 ./usr/share/man/html4/uvscom.html              man-sys-htmlman         html
+./usr/share/man/html4/uxrcom.html              man-sys-htmlman         html
 ./usr/share/man/html4/uyap.html                        man-sys-htmlman         html
 ./usr/share/man/html4/uyurex.html              man-obsolete            obsolete
 ./usr/share/man/html4/vald.html                        man-sys-htmlman         html
@@ -8169,6 +8171,7 @@
 ./usr/share/man/man4/uvideo.4                  man-sys-man             .man
 ./usr/share/man/man4/uvisor.4                  man-sys-man             .man
 ./usr/share/man/man4/uvscom.4                  man-sys-man             .man
+./usr/share/man/man4/uxrcom.4                  man-sys-man             .man
 ./usr/share/man/man4/uyap.4                    man-sys-man             .man
 ./usr/share/man/man4/uyurex.4                  man-obsolete            obsolete
 ./usr/share/man/man4/vald.4                    man-sys-man             .man
diff -r 14294a6404db -r 4fbcd10a6325 share/man/man4/Makefile
--- a/share/man/man4/Makefile   Sun Apr 12 00:04:45 2020 +0000
+++ b/share/man/man4/Makefile   Sun Apr 12 01:10:53 2020 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.703 2020/04/04 15:39:13 jdolecek Exp $
+#      $NetBSD: Makefile,v 1.704 2020/04/12 01:10:54 simonb Exp $
 #      @(#)Makefile    8.1 (Berkeley) 6/18/93
 
 MAN=   aac.4 ac97.4 acardide.4 aceride.4 acphy.4 \
@@ -87,8 +87,8 @@
        ulpt.4 umass.4 umcs.4 umct.4 umidi.4 umodem.4 ums.4 upgt.4 upl.4 \
        uplcom.4 ure.4 url.4 urndis.4 urtw.4 urtwn.4 \
        usb.4 usbnet.4 uscanner.4 uslsa.4 usmsc.4 usscanner.4 \
-       ustir.4 uthum.4 utoppy.4 uts.4 uvideo.4 uvisor.4 uvscom.4 uyap.4 \
-       xhci.4 \
+       ustir.4 uthum.4 utoppy.4 uts.4 uvideo.4 uvisor.4 uvscom.4 uxrcom.4 \
+       uyap.4 xhci.4 \
 
 # Ir devices
 MAN+=  irframe.4 cir.4 irframetty.4 oboe.4
diff -r 14294a6404db -r 4fbcd10a6325 share/man/man4/ucom.4
--- a/share/man/man4/ucom.4     Sun Apr 12 00:04:45 2020 +0000
+++ b/share/man/man4/ucom.4     Sun Apr 12 01:10:53 2020 +0000
@@ -1,4 +1,4 @@
-.\" $NetBSD: ucom.4,v 1.27 2019/05/05 00:12:34 pgoyette Exp $
+.\" $NetBSD: ucom.4,v 1.28 2020/04/12 01:10:54 simonb Exp $
 .\"
 .\" Copyright (c) 1999 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -50,6 +50,7 @@
 .Cd "ucom* at uslsa?"
 .Cd "ucom* at uvisor? portno ?"
 .Cd "ucom* at uvscom?"
+.Cd "ucom* at uxrcom?"
 .Sh DESCRIPTION
 The
 .Nm
@@ -103,7 +104,8 @@
 .Xr usb 4 ,
 .Xr uslsa 4 ,
 .Xr uvisor 4 ,
-.Xr uvscom 4
+.Xr uvscom 4 ,
+.Xr uxrcom 4
 .Sh HISTORY
 The
 .Nm
diff -r 14294a6404db -r 4fbcd10a6325 share/man/man4/uxrcom.4
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/share/man/man4/uxrcom.4   Sun Apr 12 01:10:53 2020 +0000
@@ -0,0 +1,79 @@
+.\"    $OpenBSD: uxrcom.4,v 1.1 2019/03/27 22:11:21 kettenis Exp $
+.\"
+.\" Copyright (c) 2019 Mark Kettenis <kettenis%openbsd.org@localhost>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: March 27 2019 $
+.Dt UXRCOM 4
+.Os
+.Sh NAME
+.Nm uxrcom
+.Nd Exar XR21V141x USB serial adapter
+.Sh SYNOPSIS
+.Cd "uxrcom* at uhub?"
+.Cd "ucom* at uxrcom?"
+.Sh HARDWARE
+The
+.Nm
+driver supports serial adapters based on the
+XR21V1410, XR21V1412 and XR21V1414 chipsets.
+Devices range from single port to eight port (implemented as a
+USB hub and two
+.Nm
+four port instances behind it).
+Examples of hardware known to work with this driver are:
+.Pp
+.Bl -tag -width Dv -offset indent -compact
+.It Gearmo GM-U28RS232 8 Port USB to Serial DB9 RS232 Adapter
+.El
+.Sh DESCRIPTION
+The
+.Nm
+driver attaches the Exar XR21V141x multiport chipset with individual
+port drivers via
+.Xr ucom 4 ,
+which makes it behave like a
+.Xr tty 4 .
+.Sh SEE ALSO
+.Xr tty 4 ,
+.Xr ucom 4 ,
+.Xr uhub 4 ,
+.Xr modem 4 ,
+.Xr usb 4
+.Sh HISTORY
+The
+.Nm
+device driver first appeared in
+.Ox 6.5
+and in
+.Nx 9.1 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver for the single port XR21V1410 was written by
+.An Mark Kettenis Aq Mt kettenis%openbsd.org@localhost .
+The multi-port
+.Nx
+driver is based on the
+.Ox
+driver but uses the common
+.Xr umodem 4
+framework.
+The
+.Nx
+driver was written by
+by
+.An Simon Burge
+.Aq simonb%netbsd.org@localhost .
diff -r 14294a6404db -r 4fbcd10a6325 sys/dev/usb/files.usb
--- a/sys/dev/usb/files.usb     Sun Apr 12 00:04:45 2020 +0000
+++ b/sys/dev/usb/files.usb     Sun Apr 12 01:10:53 2020 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: files.usb,v 1.172 2020/02/09 15:46:15 maya Exp $
+#      $NetBSD: files.usb,v 1.173 2020/04/12 01:10:54 simonb Exp $
 #
 # Config file and device description for machine-independent USB code.
 # Included by ports that need it.  Ports that use it must provide
@@ -429,6 +429,11 @@
 attach uvscom at usbdevif
 file   dev/usb/uvscom.c                uvscom
 
+# Exar XR21V141x serial driver (mostly CDC)
+device uxrcom: ucombus, umodem_common
+attach uxrcom at usbifif
+file   dev/usb/uxrcom.c                uxrcom
+
 # Belkin & other serial driver
 define ubsa_common
 file   dev/usb/ubsa_common.c           ubsa_common
diff -r 14294a6404db -r 4fbcd10a6325 sys/dev/usb/ukyopon.c
--- a/sys/dev/usb/ukyopon.c     Sun Apr 12 00:04:45 2020 +0000
+++ b/sys/dev/usb/ukyopon.c     Sun Apr 12 01:10:53 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ukyopon.c,v 1.25 2020/01/07 06:42:26 maxv Exp $        */
+/*     $NetBSD: ukyopon.c,v 1.26 2020/04/12 01:10:54 simonb Exp $      */
 
 /*
  * Copyright (c) 1998, 2005 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ukyopon.c,v 1.25 2020/01/07 06:42:26 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ukyopon.c,v 1.26 2020/04/12 01:10:54 simonb Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_usb.h"
@@ -130,6 +130,8 @@
        struct usbif_attach_arg *uiaa = aux;
        struct ucom_attach_args ucaa;
 
+       memset(&ucaa, 0, sizeof(ucaa));
+
        ucaa.ucaa_portno = (uiaa->uiaa_ifaceno == UKYOPON_MODEM_IFACE_INDEX) ?
                UKYOPON_PORT_MODEM : UKYOPON_PORT_DATA;
        ucaa.ucaa_methods = &ukyopon_methods;
diff -r 14294a6404db -r 4fbcd10a6325 sys/dev/usb/umodem.c
--- a/sys/dev/usb/umodem.c      Sun Apr 12 00:04:45 2020 +0000
+++ b/sys/dev/usb/umodem.c      Sun Apr 12 01:10:53 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: umodem.c,v 1.73 2020/01/07 06:42:26 maxv Exp $ */
+/*     $NetBSD: umodem.c,v 1.74 2020/04/12 01:10:54 simonb Exp $       */
 
 /*
  * Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -44,7 +44,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: umodem.c,v 1.73 2020/01/07 06:42:26 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: umodem.c,v 1.74 2020/04/12 01:10:54 simonb Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -114,6 +114,8 @@
        struct usbif_attach_arg *uiaa = aux;
        struct ucom_attach_args ucaa;
 
+       memset(&ucaa, 0, sizeof(ucaa));
+
        ucaa.ucaa_portno = UCOM_UNK_PORTNO;
        ucaa.ucaa_methods = &umodem_methods;
        ucaa.ucaa_info = NULL;
diff -r 14294a6404db -r 4fbcd10a6325 sys/dev/usb/umodem_common.c
--- a/sys/dev/usb/umodem_common.c       Sun Apr 12 00:04:45 2020 +0000
+++ b/sys/dev/usb/umodem_common.c       Sun Apr 12 01:10:53 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: umodem_common.c,v 1.32 2020/03/14 02:35:33 christos Exp $      */
+/*     $NetBSD: umodem_common.c,v 1.33 2020/04/12 01:10:54 simonb Exp $        */
 
 /*
  * Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -44,7 +44,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: umodem_common.c,v 1.32 2020/03/14 02:35:33 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: umodem_common.c,v 1.33 2020/04/12 01:10:54 simonb Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_usb.h"
@@ -105,6 +105,12 @@
 static void    umodem_set_line_state(struct umodem_softc *);
 static void    umodem_intr(struct usbd_xfer *, void *, usbd_status);
 
+/*
+ * NOTE: Callers of umodem_common_attach() should initialise their ucaa
+ * to 0 before assigning any fields.  ucaa_ibufsize, ucaa_ibufsize and
+ * ucaa_obufsize may be set by the caller, but if 0 are set to default
+ * umodem values.
+ */
 int
 umodem_common_attach(device_t self, struct umodem_softc *sc,
     struct usbif_attach_arg *uiaa, struct ucom_attach_args *ucaa)
@@ -239,10 +245,16 @@
 
        sc->sc_dtr = -1;
 
-       /* ucaa_bulkin, ucaa_bulkout set above */
-       ucaa->ucaa_ibufsize = UMODEMIBUFSIZE;
-       ucaa->ucaa_obufsize = UMODEMOBUFSIZE;
-       ucaa->ucaa_ibufsizepad = UMODEMIBUFSIZE;
+       /*
+        * ucaa_bulkin, ucaa_bulkout set above.  ucaa_ibufsize,
+        * ucaa_ibufsize, ucaa_obufsize may be initialised by caller
+        */
+       if (ucaa->ucaa_ibufsize == 0)
+               ucaa->ucaa_ibufsize = UMODEMIBUFSIZE;
+       if (ucaa->ucaa_obufsize == 0)
+               ucaa->ucaa_obufsize = UMODEMOBUFSIZE;
+       if (ucaa->ucaa_ibufsizepad == 0)
+               ucaa->ucaa_ibufsizepad = UMODEMIBUFSIZE;
        ucaa->ucaa_opkthdrlen = 0;
        ucaa->ucaa_device = sc->sc_udev;
        ucaa->ucaa_iface = sc->sc_data_iface;
@@ -356,7 +368,7 @@
                         sc->sc_notify_buf.data[0],
                         sc->sc_notify_buf.data[1]));
                /* Currently, lsr is always zero. */
-               sc->sc_lsr = sc->sc_msr = 0;
+               sc->sc_lsr = sc->sc_msr = 0;
                mstatus = sc->sc_notify_buf.data[0];
 
                if (ISSET(mstatus, UCDC_N_SERIAL_RI))
diff -r 14294a6404db -r 4fbcd10a6325 sys/dev/usb/usbdevices.config



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