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freebsd-dev/sys/dev/usb/net/uhso.c
Pawel Biernacki f8d2b1f3f7 Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (2 of many) 
r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked). Use it in
preparation for a general review of all nodes.
This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.

Reviewed by:	hselasky, kib
Approved by:	kib (mentor)
Differential Revision:	https://reviews.freebsd.org/D23632
2020-02-15 18:52:12 +00:00

1940 lines
49 KiB
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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2010 Fredrik Lindberg <fli@shapeshifter.se>
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/eventhandler.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/socket.h>
#include <sys/tty.h>
#include <sys/sysctl.h>
#include <sys/condvar.h>
#include <sys/sx.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <sys/bus.h>
#include <sys/systm.h>
#include <sys/limits.h>
#include <machine/bus.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_types.h>
#include <net/netisr.h>
#include <net/bpf.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip6.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usb_cdc.h>
#include "usbdevs.h"
#define USB_DEBUG_VAR uhso_debug
#include <dev/usb/usb_debug.h>
#include <dev/usb/usb_process.h>
#include <dev/usb/usb_busdma.h>
#include <dev/usb/usb_msctest.h>
#include <dev/usb/serial/usb_serial.h>
struct uhso_tty {
struct uhso_softc *ht_sc;
struct usb_xfer *ht_xfer[3];
int ht_muxport; /* Mux. port no */
int ht_open;
char ht_name[32];
};
struct uhso_softc {
device_t sc_dev;
struct usb_device *sc_udev;
struct mtx sc_mtx;
uint32_t sc_type; /* Interface definition */
int sc_radio;
struct usb_xfer *sc_xfer[3];
uint8_t sc_iface_no;
uint8_t sc_iface_index;
/* Control pipe */
struct usb_xfer * sc_ctrl_xfer[2];
uint8_t sc_ctrl_iface_no;
/* Network */
struct usb_xfer *sc_if_xfer[2];
struct ifnet *sc_ifp;
struct mbuf *sc_mwait; /* Partial packet */
size_t sc_waitlen; /* No. of outstanding bytes */
struct mbufq sc_rxq;
struct callout sc_c;
/* TTY related structures */
struct ucom_super_softc sc_super_ucom;
int sc_ttys;
struct uhso_tty *sc_tty;
struct ucom_softc *sc_ucom;
int sc_msr;
int sc_lsr;
int sc_line;
};
#define UHSO_MAX_MTU 2048
/*
* There are mainly two type of cards floating around.
* The first one has 2,3 or 4 interfaces with a multiplexed serial port
* and packet interface on the first interface and bulk serial ports
* on the others.
* The second type of card has several other interfaces, their purpose
* can be detected during run-time.
*/
#define UHSO_IFACE_SPEC(usb_type, port, port_type) \
(((usb_type) << 24) | ((port) << 16) | (port_type))
#define UHSO_IFACE_USB_TYPE(x) ((x >> 24) & 0xff)
#define UHSO_IFACE_PORT(x) ((x >> 16) & 0xff)
#define UHSO_IFACE_PORT_TYPE(x) (x & 0xff)
/*
* USB interface types
*/
#define UHSO_IF_NET 0x01 /* Network packet interface */
#define UHSO_IF_MUX 0x02 /* Multiplexed serial port */
#define UHSO_IF_BULK 0x04 /* Bulk interface */
/*
* Port types
*/
#define UHSO_PORT_UNKNOWN 0x00
#define UHSO_PORT_SERIAL 0x01 /* Serial port */
#define UHSO_PORT_NETWORK 0x02 /* Network packet interface */
/*
* Multiplexed serial port destination sub-port names
*/
#define UHSO_MPORT_TYPE_CTL 0x00 /* Control port */
#define UHSO_MPORT_TYPE_APP 0x01 /* Application */
#define UHSO_MPORT_TYPE_PCSC 0x02
#define UHSO_MPORT_TYPE_GPS 0x03
#define UHSO_MPORT_TYPE_APP2 0x04 /* Secondary application */
#define UHSO_MPORT_TYPE_MAX UHSO_MPORT_TYPE_APP2
#define UHSO_MPORT_TYPE_NOMAX 8 /* Max number of mux ports */
/*
* Port definitions
* Note that these definitions are arbitrary and do not match the values
* returned by the auto config descriptor.
*/
#define UHSO_PORT_TYPE_UNKNOWN 0x00
#define UHSO_PORT_TYPE_CTL 0x01
#define UHSO_PORT_TYPE_APP 0x02
#define UHSO_PORT_TYPE_APP2 0x03
#define UHSO_PORT_TYPE_MODEM 0x04
#define UHSO_PORT_TYPE_NETWORK 0x05
#define UHSO_PORT_TYPE_DIAG 0x06
#define UHSO_PORT_TYPE_DIAG2 0x07
#define UHSO_PORT_TYPE_GPS 0x08
#define UHSO_PORT_TYPE_GPSCTL 0x09
#define UHSO_PORT_TYPE_PCSC 0x0a
#define UHSO_PORT_TYPE_MSD 0x0b
#define UHSO_PORT_TYPE_VOICE 0x0c
#define UHSO_PORT_TYPE_MAX 0x0c
static eventhandler_tag uhso_etag;
/* Overall port type */
static char *uhso_port[] = {
"Unknown",
"Serial",
"Network",
"Network/Serial"
};
/*
* Map between interface port type read from device and description type.
* The position in this array is a direct map to the auto config
* descriptor values.
*/
static unsigned char uhso_port_map[] = {
UHSO_PORT_TYPE_UNKNOWN,
UHSO_PORT_TYPE_DIAG,
UHSO_PORT_TYPE_GPS,
UHSO_PORT_TYPE_GPSCTL,
UHSO_PORT_TYPE_APP,
UHSO_PORT_TYPE_APP2,
UHSO_PORT_TYPE_CTL,
UHSO_PORT_TYPE_NETWORK,
UHSO_PORT_TYPE_MODEM,
UHSO_PORT_TYPE_MSD,
UHSO_PORT_TYPE_PCSC,
UHSO_PORT_TYPE_VOICE
};
static char uhso_port_map_max = sizeof(uhso_port_map) / sizeof(char);
static unsigned char uhso_mux_port_map[] = {
UHSO_PORT_TYPE_CTL,
UHSO_PORT_TYPE_APP,
UHSO_PORT_TYPE_PCSC,
UHSO_PORT_TYPE_GPS,
UHSO_PORT_TYPE_APP2
};
static char *uhso_port_type[] = {
"Unknown", /* Not a valid port */
"Control",
"Application",
"Application (Secondary)",
"Modem",
"Network",
"Diagnostic",
"Diagnostic (Secondary)",
"GPS",
"GPS Control",
"PC Smartcard",
"MSD",
"Voice",
};
static char *uhso_port_type_sysctl[] = {
"unknown",
"control",
"application",
"application",
"modem",
"network",
"diagnostic",
"diagnostic",
"gps",
"gps_control",
"pcsc",
"msd",
"voice",
};
#define UHSO_STATIC_IFACE 0x01
#define UHSO_AUTO_IFACE 0x02
/* ifnet device unit allocations */
static struct unrhdr *uhso_ifnet_unit = NULL;
static const STRUCT_USB_HOST_ID uhso_devs[] = {
#define UHSO_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) }
/* Option GlobeTrotter MAX 7.2 with upgraded firmware */
UHSO_DEV(OPTION, GTMAX72, UHSO_STATIC_IFACE),
/* Option GlobeSurfer iCON 7.2 */
UHSO_DEV(OPTION, GSICON72, UHSO_STATIC_IFACE),
/* Option iCON 225 */
UHSO_DEV(OPTION, GTHSDPA, UHSO_STATIC_IFACE),
/* Option GlobeSurfer iCON HSUPA */
UHSO_DEV(OPTION, GSICONHSUPA, UHSO_STATIC_IFACE),
/* Option GlobeTrotter HSUPA */
UHSO_DEV(OPTION, GTHSUPA, UHSO_STATIC_IFACE),
/* GE40x */
UHSO_DEV(OPTION, GE40X, UHSO_AUTO_IFACE),
UHSO_DEV(OPTION, GE40X_1, UHSO_AUTO_IFACE),
UHSO_DEV(OPTION, GE40X_2, UHSO_AUTO_IFACE),
UHSO_DEV(OPTION, GE40X_3, UHSO_AUTO_IFACE),
/* Option GlobeSurfer iCON 401 */
UHSO_DEV(OPTION, ICON401, UHSO_AUTO_IFACE),
/* Option GlobeTrotter Module 382 */
UHSO_DEV(OPTION, GMT382, UHSO_AUTO_IFACE),
/* Option GTM661W */
UHSO_DEV(OPTION, GTM661W, UHSO_AUTO_IFACE),
/* Option iCON EDGE */
UHSO_DEV(OPTION, ICONEDGE, UHSO_STATIC_IFACE),
/* Option Module HSxPA */
UHSO_DEV(OPTION, MODHSXPA, UHSO_STATIC_IFACE),
/* Option iCON 321 */
UHSO_DEV(OPTION, ICON321, UHSO_STATIC_IFACE),
/* Option iCON 322 */
UHSO_DEV(OPTION, GTICON322, UHSO_STATIC_IFACE),
/* Option iCON 505 */
UHSO_DEV(OPTION, ICON505, UHSO_AUTO_IFACE),
/* Option iCON 452 */
UHSO_DEV(OPTION, ICON505, UHSO_AUTO_IFACE),
#undef UHSO_DEV
};
static SYSCTL_NODE(_hw_usb, OID_AUTO, uhso, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
"USB uhso");
static int uhso_autoswitch = 1;
SYSCTL_INT(_hw_usb_uhso, OID_AUTO, auto_switch, CTLFLAG_RWTUN,
&uhso_autoswitch, 0, "Automatically switch to modem mode");
#ifdef USB_DEBUG
#ifdef UHSO_DEBUG
static int uhso_debug = UHSO_DEBUG;
#else
static int uhso_debug = -1;
#endif
SYSCTL_INT(_hw_usb_uhso, OID_AUTO, debug, CTLFLAG_RWTUN,
&uhso_debug, 0, "Debug level");
#define UHSO_DPRINTF(n, x, ...) {\
if (uhso_debug >= n) {\
printf("%s: " x, __func__, ##__VA_ARGS__);\
}\
}
#else
#define UHSO_DPRINTF(n, x, ...)
#endif
#ifdef UHSO_DEBUG_HEXDUMP
# define UHSO_HEXDUMP(_buf, _len) do { \
{ \
size_t __tmp; \
const char *__buf = (const char *)_buf; \
for (__tmp = 0; __tmp < _len; __tmp++) \
printf("%02hhx ", *__buf++); \
printf("\n"); \
} \
} while(0)
#else
# define UHSO_HEXDUMP(_buf, _len)
#endif
enum {
UHSO_MUX_ENDPT_INTR = 0,
UHSO_MUX_ENDPT_MAX
};
enum {
UHSO_CTRL_READ = 0,
UHSO_CTRL_WRITE,
UHSO_CTRL_MAX
};
enum {
UHSO_IFNET_READ = 0,
UHSO_IFNET_WRITE,
UHSO_IFNET_MAX
};
enum {
UHSO_BULK_ENDPT_READ = 0,
UHSO_BULK_ENDPT_WRITE,
UHSO_BULK_ENDPT_INTR,
UHSO_BULK_ENDPT_MAX
};
static usb_callback_t uhso_mux_intr_callback;
static usb_callback_t uhso_mux_read_callback;
static usb_callback_t uhso_mux_write_callback;
static usb_callback_t uhso_bs_read_callback;
static usb_callback_t uhso_bs_write_callback;
static usb_callback_t uhso_bs_intr_callback;
static usb_callback_t uhso_ifnet_read_callback;
static usb_callback_t uhso_ifnet_write_callback;
/* Config used for the default control pipes */
static const struct usb_config uhso_ctrl_config[UHSO_CTRL_MAX] = {
[UHSO_CTRL_READ] = {
.type = UE_CONTROL,
.endpoint = 0x00,
.direction = UE_DIR_ANY,
.flags = { .pipe_bof = 1, .short_xfer_ok = 1 },
.bufsize = sizeof(struct usb_device_request) + 1024,
.callback = &uhso_mux_read_callback
},
[UHSO_CTRL_WRITE] = {
.type = UE_CONTROL,
.endpoint = 0x00,
.direction = UE_DIR_ANY,
.flags = { .pipe_bof = 1, .force_short_xfer = 1 },
.bufsize = sizeof(struct usb_device_request) + 1024,
.timeout = 1000,
.callback = &uhso_mux_write_callback
}
};
/* Config for the multiplexed serial ports */
static const struct usb_config uhso_mux_config[UHSO_MUX_ENDPT_MAX] = {
[UHSO_MUX_ENDPT_INTR] = {
.type = UE_INTERRUPT,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = { .short_xfer_ok = 1 },
.bufsize = 0,
.callback = &uhso_mux_intr_callback,
}
};
/* Config for the raw IP-packet interface */
static const struct usb_config uhso_ifnet_config[UHSO_IFNET_MAX] = {
[UHSO_IFNET_READ] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = { .pipe_bof = 1, .short_xfer_ok = 1 },
.bufsize = MCLBYTES,
.callback = &uhso_ifnet_read_callback
},
[UHSO_IFNET_WRITE] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.flags = { .pipe_bof = 1, .force_short_xfer = 1 },
.bufsize = MCLBYTES,
.timeout = 5 * USB_MS_HZ,
.callback = &uhso_ifnet_write_callback
}
};
/* Config for interfaces with normal bulk serial ports */
static const struct usb_config uhso_bs_config[UHSO_BULK_ENDPT_MAX] = {
[UHSO_BULK_ENDPT_READ] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = { .pipe_bof = 1, .short_xfer_ok = 1 },
.bufsize = 4096,
.callback = &uhso_bs_read_callback
},
[UHSO_BULK_ENDPT_WRITE] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.flags = { .pipe_bof = 1, .force_short_xfer = 1 },
.bufsize = 8192,
.callback = &uhso_bs_write_callback
},
[UHSO_BULK_ENDPT_INTR] = {
.type = UE_INTERRUPT,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = { .short_xfer_ok = 1 },
.bufsize = 0,
.callback = &uhso_bs_intr_callback,
}
};
static int uhso_probe_iface(struct uhso_softc *, int,
int (*probe)(struct usb_device *, int));
static int uhso_probe_iface_auto(struct usb_device *, int);
static int uhso_probe_iface_static(struct usb_device *, int);
static int uhso_attach_muxserial(struct uhso_softc *, struct usb_interface *,
int type);
static int uhso_attach_bulkserial(struct uhso_softc *, struct usb_interface *,
int type);
static int uhso_attach_ifnet(struct uhso_softc *, struct usb_interface *,
int type);
static void uhso_test_autoinst(void *, struct usb_device *,
struct usb_attach_arg *);
static int uhso_driver_loaded(struct module *, int, void *);
static int uhso_radio_sysctl(SYSCTL_HANDLER_ARGS);
static int uhso_radio_ctrl(struct uhso_softc *, int);
static void uhso_free(struct ucom_softc *);
static void uhso_ucom_start_read(struct ucom_softc *);
static void uhso_ucom_stop_read(struct ucom_softc *);
static void uhso_ucom_start_write(struct ucom_softc *);
static void uhso_ucom_stop_write(struct ucom_softc *);
static void uhso_ucom_cfg_get_status(struct ucom_softc *, uint8_t *, uint8_t *);
static void uhso_ucom_cfg_set_dtr(struct ucom_softc *, uint8_t);
static void uhso_ucom_cfg_set_rts(struct ucom_softc *, uint8_t);
static void uhso_if_init(void *);
static void uhso_if_start(struct ifnet *);
static void uhso_if_stop(struct uhso_softc *);
static int uhso_if_ioctl(struct ifnet *, u_long, caddr_t);
static int uhso_if_output(struct ifnet *, struct mbuf *,
const struct sockaddr *, struct route *);
static void uhso_if_rxflush(void *);
static device_probe_t uhso_probe;
static device_attach_t uhso_attach;
static device_detach_t uhso_detach;
static void uhso_free_softc(struct uhso_softc *);
static device_method_t uhso_methods[] = {
DEVMETHOD(device_probe, uhso_probe),
DEVMETHOD(device_attach, uhso_attach),
DEVMETHOD(device_detach, uhso_detach),
{ 0, 0 }
};
static driver_t uhso_driver = {
.name = "uhso",
.methods = uhso_methods,
.size = sizeof(struct uhso_softc)
};
static devclass_t uhso_devclass;
DRIVER_MODULE(uhso, uhub, uhso_driver, uhso_devclass, uhso_driver_loaded, 0);
MODULE_DEPEND(uhso, ucom, 1, 1, 1);
MODULE_DEPEND(uhso, usb, 1, 1, 1);
MODULE_VERSION(uhso, 1);
USB_PNP_HOST_INFO(uhso_devs);
static struct ucom_callback uhso_ucom_callback = {
.ucom_cfg_get_status = &uhso_ucom_cfg_get_status,
.ucom_cfg_set_dtr = &uhso_ucom_cfg_set_dtr,
.ucom_cfg_set_rts = &uhso_ucom_cfg_set_rts,
.ucom_start_read = uhso_ucom_start_read,
.ucom_stop_read = uhso_ucom_stop_read,
.ucom_start_write = uhso_ucom_start_write,
.ucom_stop_write = uhso_ucom_stop_write,
.ucom_free = &uhso_free,
};
static int
uhso_probe(device_t self)
{
struct usb_attach_arg *uaa = device_get_ivars(self);
int error;
if (uaa->usb_mode != USB_MODE_HOST)
return (ENXIO);
if (uaa->info.bConfigIndex != 0)
return (ENXIO);
if (uaa->info.bDeviceClass != 0xff)
return (ENXIO);
error = usbd_lookup_id_by_uaa(uhso_devs, sizeof(uhso_devs), uaa);
if (error != 0)
return (error);
/*
* Probe device to see if we are able to attach
* to this interface or not.
*/
if (USB_GET_DRIVER_INFO(uaa) == UHSO_AUTO_IFACE) {
if (uhso_probe_iface_auto(uaa->device,
uaa->info.bIfaceNum) == 0)
return (ENXIO);
}
return (error);
}
static int
uhso_attach(device_t self)
{
struct uhso_softc *sc = device_get_softc(self);
struct usb_attach_arg *uaa = device_get_ivars(self);
struct usb_interface_descriptor *id;
struct sysctl_ctx_list *sctx;
struct sysctl_oid *soid;
struct sysctl_oid *tree = NULL, *tty_node;
struct ucom_softc *ucom;
struct uhso_tty *ht;
int i, error, port;
void *probe_f;
usb_error_t uerr;
char *desc;
sc->sc_dev = self;
sc->sc_udev = uaa->device;
mtx_init(&sc->sc_mtx, "uhso", NULL, MTX_DEF);
mbufq_init(&sc->sc_rxq, INT_MAX); /* XXXGL: sane maximum */
ucom_ref(&sc->sc_super_ucom);
sc->sc_radio = 1;
id = usbd_get_interface_descriptor(uaa->iface);
sc->sc_ctrl_iface_no = id->bInterfaceNumber;
sc->sc_iface_no = uaa->info.bIfaceNum;
sc->sc_iface_index = uaa->info.bIfaceIndex;
/* Setup control pipe */
uerr = usbd_transfer_setup(uaa->device,
&sc->sc_iface_index, sc->sc_ctrl_xfer,
uhso_ctrl_config, UHSO_CTRL_MAX, sc, &sc->sc_mtx);
if (uerr) {
device_printf(self, "Failed to setup control pipe: %s\n",
usbd_errstr(uerr));
goto out;
}
if (USB_GET_DRIVER_INFO(uaa) == UHSO_STATIC_IFACE)
probe_f = uhso_probe_iface_static;
else if (USB_GET_DRIVER_INFO(uaa) == UHSO_AUTO_IFACE)
probe_f = uhso_probe_iface_auto;
else
goto out;
error = uhso_probe_iface(sc, uaa->info.bIfaceNum, probe_f);
if (error != 0)
goto out;
sctx = device_get_sysctl_ctx(sc->sc_dev);
soid = device_get_sysctl_tree(sc->sc_dev);
SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "type",
CTLFLAG_RD, uhso_port[UHSO_IFACE_PORT(sc->sc_type)], 0,
"Port available at this interface");
SYSCTL_ADD_PROC(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "radio",
CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, sc, 0,
uhso_radio_sysctl, "I", "Enable radio");
/*
* The default interface description on most Option devices isn't
* very helpful. So we skip device_set_usb_desc and set the
* device description manually.
*/
device_set_desc_copy(self, uhso_port_type[UHSO_IFACE_PORT_TYPE(sc->sc_type)]);
/* Announce device */
device_printf(self, "<%s port> at <%s %s> on %s\n",
uhso_port_type[UHSO_IFACE_PORT_TYPE(sc->sc_type)],
usb_get_manufacturer(uaa->device),
usb_get_product(uaa->device),
device_get_nameunit(device_get_parent(self)));
if (sc->sc_ttys > 0) {
SYSCTL_ADD_INT(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "ports",
CTLFLAG_RD, &sc->sc_ttys, 0, "Number of attached serial ports");
tree = SYSCTL_ADD_NODE(sctx, SYSCTL_CHILDREN(soid), OID_AUTO,
"port", CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "Serial ports");
}
/*
* Loop through the number of found TTYs and create sysctl
* nodes for them.
*/
for (i = 0; i < sc->sc_ttys; i++) {
ht = &sc->sc_tty[i];
ucom = &sc->sc_ucom[i];
if (UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_MUX)
port = uhso_mux_port_map[ht->ht_muxport];
else
port = UHSO_IFACE_PORT_TYPE(sc->sc_type);
desc = uhso_port_type_sysctl[port];
tty_node = SYSCTL_ADD_NODE(sctx, SYSCTL_CHILDREN(tree), OID_AUTO,
desc, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "");
ht->ht_name[0] = 0;
if (sc->sc_ttys == 1)
snprintf(ht->ht_name, 32, "cuaU%d", ucom->sc_super->sc_unit);
else {
snprintf(ht->ht_name, 32, "cuaU%d.%d",
ucom->sc_super->sc_unit, ucom->sc_subunit);
}
desc = uhso_port_type[port];
SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(tty_node), OID_AUTO,
"tty", CTLFLAG_RD, ht->ht_name, 0, "");
SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(tty_node), OID_AUTO,
"desc", CTLFLAG_RD, desc, 0, "");
if (bootverbose)
device_printf(sc->sc_dev,
"\"%s\" port at %s\n", desc, ht->ht_name);
}
return (0);
out:
uhso_detach(sc->sc_dev);
return (ENXIO);
}
static int
uhso_detach(device_t self)
{
struct uhso_softc *sc = device_get_softc(self);
int i;
usbd_transfer_unsetup(sc->sc_xfer, 3);
usbd_transfer_unsetup(sc->sc_ctrl_xfer, UHSO_CTRL_MAX);
if (sc->sc_ttys > 0) {
ucom_detach(&sc->sc_super_ucom, sc->sc_ucom);
for (i = 0; i < sc->sc_ttys; i++) {
if (sc->sc_tty[i].ht_muxport != -1) {
usbd_transfer_unsetup(sc->sc_tty[i].ht_xfer,
UHSO_CTRL_MAX);
}
}
}
if (sc->sc_ifp != NULL) {
callout_drain(&sc->sc_c);
free_unr(uhso_ifnet_unit, sc->sc_ifp->if_dunit);
mtx_lock(&sc->sc_mtx);
uhso_if_stop(sc);
bpfdetach(sc->sc_ifp);
if_detach(sc->sc_ifp);
if_free(sc->sc_ifp);
mtx_unlock(&sc->sc_mtx);
usbd_transfer_unsetup(sc->sc_if_xfer, UHSO_IFNET_MAX);
}
device_claim_softc(self);
uhso_free_softc(sc);
return (0);
}
UCOM_UNLOAD_DRAIN(uhso);
static void
uhso_free_softc(struct uhso_softc *sc)
{
if (ucom_unref(&sc->sc_super_ucom)) {
free(sc->sc_tty, M_USBDEV);
free(sc->sc_ucom, M_USBDEV);
mtx_destroy(&sc->sc_mtx);
device_free_softc(sc);
}
}
static void
uhso_free(struct ucom_softc *ucom)
{
uhso_free_softc(ucom->sc_parent);
}
static void
uhso_test_autoinst(void *arg, struct usb_device *udev,
struct usb_attach_arg *uaa)
{
struct usb_interface *iface;
struct usb_interface_descriptor *id;
if (uaa->dev_state != UAA_DEV_READY || !uhso_autoswitch)
return;
iface = usbd_get_iface(udev, 0);
if (iface == NULL)
return;
id = iface->idesc;
if (id == NULL || id->bInterfaceClass != UICLASS_MASS)
return;
if (usbd_lookup_id_by_uaa(uhso_devs, sizeof(uhso_devs), uaa))
return; /* no device match */
if (usb_msc_eject(udev, 0, MSC_EJECT_REZERO) == 0) {
/* success, mark the udev as disappearing */
uaa->dev_state = UAA_DEV_EJECTING;
}
}
static int
uhso_driver_loaded(struct module *mod, int what, void *arg)
{
switch (what) {
case MOD_LOAD:
/* register our autoinstall handler */
uhso_etag = EVENTHANDLER_REGISTER(usb_dev_configured,
uhso_test_autoinst, NULL, EVENTHANDLER_PRI_ANY);
/* create our unit allocator for inet devs */
uhso_ifnet_unit = new_unrhdr(0, INT_MAX, NULL);
break;
case MOD_UNLOAD:
EVENTHANDLER_DEREGISTER(usb_dev_configured, uhso_etag);
delete_unrhdr(uhso_ifnet_unit);
break;
default:
return (EOPNOTSUPP);
}
return (0);
}
/*
* Probe the interface type by querying the device. The elements
* of an array indicates the capabilities of a particular interface.
* Returns a bit mask with the interface capabilities.
*/
static int
uhso_probe_iface_auto(struct usb_device *udev, int index)
{
struct usb_device_request req;
usb_error_t uerr;
uint16_t actlen = 0;
char port;
char buf[17] = {0};
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = 0x86;
USETW(req.wValue, 0);
USETW(req.wIndex, 0);
USETW(req.wLength, 17);
uerr = usbd_do_request_flags(udev, NULL, &req, buf,
0, &actlen, USB_MS_HZ);
if (uerr != 0) {
printf("%s: usbd_do_request_flags failed, %s\n",
__func__, usbd_errstr(uerr));
return (0);
}
UHSO_DPRINTF(1, "actlen=%d\n", actlen);
UHSO_HEXDUMP(buf, 17);
if (index < 0 || index > 16) {
UHSO_DPRINTF(0, "Index %d out of range\n", index);
return (0);
}
UHSO_DPRINTF(1, "index=%d, type=%x[%s]\n", index, buf[index],
uhso_port_type[(int)uhso_port_map[(int)buf[index]]]);
if (buf[index] >= uhso_port_map_max)
port = 0;
else
port = uhso_port_map[(int)buf[index]];
switch (port) {
case UHSO_PORT_TYPE_NETWORK:
return (UHSO_IFACE_SPEC(UHSO_IF_NET | UHSO_IF_MUX,
UHSO_PORT_SERIAL | UHSO_PORT_NETWORK, port));
case UHSO_PORT_TYPE_DIAG:
case UHSO_PORT_TYPE_DIAG2:
case UHSO_PORT_TYPE_GPS:
case UHSO_PORT_TYPE_GPSCTL:
case UHSO_PORT_TYPE_CTL:
case UHSO_PORT_TYPE_APP:
case UHSO_PORT_TYPE_APP2:
case UHSO_PORT_TYPE_MODEM:
return (UHSO_IFACE_SPEC(UHSO_IF_BULK,
UHSO_PORT_SERIAL, port));
case UHSO_PORT_TYPE_MSD:
return (0);
case UHSO_PORT_TYPE_UNKNOWN:
default:
return (0);
}
return (0);
}
/*
* Returns the capabilities of interfaces for devices that don't
* support the automatic query.
* Returns a bit mask with the interface capabilities.
*/
static int
uhso_probe_iface_static(struct usb_device *udev, int index)
{
struct usb_config_descriptor *cd;
cd = usbd_get_config_descriptor(udev);
if (cd->bNumInterface <= 3) {
/* Cards with 3 or less interfaces */
switch (index) {
case 0:
return UHSO_IFACE_SPEC(UHSO_IF_NET | UHSO_IF_MUX,
UHSO_PORT_SERIAL | UHSO_PORT_NETWORK,
UHSO_PORT_TYPE_NETWORK);
case 1:
return UHSO_IFACE_SPEC(UHSO_IF_BULK,
UHSO_PORT_SERIAL, UHSO_PORT_TYPE_DIAG);
case 2:
return UHSO_IFACE_SPEC(UHSO_IF_BULK,
UHSO_PORT_SERIAL, UHSO_PORT_TYPE_MODEM);
}
} else {
/* Cards with 4 interfaces */
switch (index) {
case 0:
return UHSO_IFACE_SPEC(UHSO_IF_NET | UHSO_IF_MUX,
UHSO_PORT_SERIAL | UHSO_PORT_NETWORK,
UHSO_PORT_TYPE_NETWORK);
case 1:
return UHSO_IFACE_SPEC(UHSO_IF_BULK,
UHSO_PORT_SERIAL, UHSO_PORT_TYPE_DIAG2);
case 2:
return UHSO_IFACE_SPEC(UHSO_IF_BULK,
UHSO_PORT_SERIAL, UHSO_PORT_TYPE_MODEM);
case 3:
return UHSO_IFACE_SPEC(UHSO_IF_BULK,
UHSO_PORT_SERIAL, UHSO_PORT_TYPE_DIAG);
}
}
return (0);
}
/*
* Probes an interface for its particular capabilities and attaches if
* it's a supported interface.
*/
static int
uhso_probe_iface(struct uhso_softc *sc, int index,
int (*probe)(struct usb_device *, int))
{
struct usb_interface *iface;
int type, error;
UHSO_DPRINTF(1, "Probing for interface %d, probe_func=%p\n", index, probe);
type = probe(sc->sc_udev, index);
UHSO_DPRINTF(1, "Probe result %x\n", type);
if (type <= 0)
return (ENXIO);
sc->sc_type = type;
iface = usbd_get_iface(sc->sc_udev, index);
if (UHSO_IFACE_PORT_TYPE(type) == UHSO_PORT_TYPE_NETWORK) {
error = uhso_attach_ifnet(sc, iface, type);
if (error) {
UHSO_DPRINTF(1, "uhso_attach_ifnet failed");
return (ENXIO);
}
/*
* If there is an additional interrupt endpoint on this
* interface then we most likely have a multiplexed serial port
* available.
*/
if (iface->idesc->bNumEndpoints < 3) {
sc->sc_type = UHSO_IFACE_SPEC(
UHSO_IFACE_USB_TYPE(type) & ~UHSO_IF_MUX,
UHSO_IFACE_PORT(type) & ~UHSO_PORT_SERIAL,
UHSO_IFACE_PORT_TYPE(type));
return (0);
}
UHSO_DPRINTF(1, "Trying to attach mux. serial\n");
error = uhso_attach_muxserial(sc, iface, type);
if (error == 0 && sc->sc_ttys > 0) {
error = ucom_attach(&sc->sc_super_ucom, sc->sc_ucom,
sc->sc_ttys, sc, &uhso_ucom_callback, &sc->sc_mtx);
if (error) {
device_printf(sc->sc_dev, "ucom_attach failed\n");
return (ENXIO);
}
ucom_set_pnpinfo_usb(&sc->sc_super_ucom, sc->sc_dev);
mtx_lock(&sc->sc_mtx);
usbd_transfer_start(sc->sc_xfer[UHSO_MUX_ENDPT_INTR]);
mtx_unlock(&sc->sc_mtx);
}
} else if ((UHSO_IFACE_USB_TYPE(type) & UHSO_IF_BULK) &&
UHSO_IFACE_PORT(type) & UHSO_PORT_SERIAL) {
error = uhso_attach_bulkserial(sc, iface, type);
if (error)
return (ENXIO);
error = ucom_attach(&sc->sc_super_ucom, sc->sc_ucom,
sc->sc_ttys, sc, &uhso_ucom_callback, &sc->sc_mtx);
if (error) {
device_printf(sc->sc_dev, "ucom_attach failed\n");
return (ENXIO);
}
ucom_set_pnpinfo_usb(&sc->sc_super_ucom, sc->sc_dev);
}
else {
UHSO_DPRINTF(0, "Unknown type %x\n", type);
return (ENXIO);
}
return (0);
}
static int
uhso_radio_ctrl(struct uhso_softc *sc, int onoff)
{
struct usb_device_request req;
usb_error_t uerr;
req.bmRequestType = UT_VENDOR;
req.bRequest = onoff ? 0x82 : 0x81;
USETW(req.wValue, 0);
USETW(req.wIndex, 0);
USETW(req.wLength, 0);
uerr = usbd_do_request(sc->sc_udev, NULL, &req, NULL);
if (uerr != 0) {
device_printf(sc->sc_dev, "usbd_do_request_flags failed: %s\n",
usbd_errstr(uerr));
return (-1);
}
return (onoff);
}
static int
uhso_radio_sysctl(SYSCTL_HANDLER_ARGS)
{
struct uhso_softc *sc = arg1;
int error, radio;
radio = sc->sc_radio;
error = sysctl_handle_int(oidp, &radio, 0, req);
if (error)
return (error);
if (radio != sc->sc_radio) {
radio = radio != 0 ? 1 : 0;
error = uhso_radio_ctrl(sc, radio);
if (error != -1)
sc->sc_radio = radio;
}
return (0);
}
/*
* Expands allocated memory to fit an additional TTY.
* Two arrays are kept with matching indexes, one for ucom and one
* for our private data.
*/
static int
uhso_alloc_tty(struct uhso_softc *sc)
{
sc->sc_ttys++;
sc->sc_tty = reallocf(sc->sc_tty, sizeof(struct uhso_tty) * sc->sc_ttys,
M_USBDEV, M_WAITOK | M_ZERO);
if (sc->sc_tty == NULL)
return (-1);
sc->sc_ucom = reallocf(sc->sc_ucom,
sizeof(struct ucom_softc) * sc->sc_ttys, M_USBDEV, M_WAITOK | M_ZERO);
if (sc->sc_ucom == NULL)
return (-1);
sc->sc_tty[sc->sc_ttys - 1].ht_sc = sc;
UHSO_DPRINTF(1, "Allocated TTY %d\n", sc->sc_ttys - 1);
return (sc->sc_ttys - 1);
}
/*
* Attach a multiplexed serial port
* Data is read/written with requests on the default control pipe. An interrupt
* endpoint returns when there is new data to be read.
*/
static int
uhso_attach_muxserial(struct uhso_softc *sc, struct usb_interface *iface,
int type)
{
struct usb_descriptor *desc;
int i, port, tty;
usb_error_t uerr;
/*
* The class specific interface (type 0x24) descriptor subtype field
* contains a bitmask that specifies which (and how many) ports that
* are available through this multiplexed serial port.
*/
desc = usbd_find_descriptor(sc->sc_udev, NULL,
iface->idesc->bInterfaceNumber, UDESC_CS_INTERFACE, 0xff, 0, 0);
if (desc == NULL) {
UHSO_DPRINTF(0, "Failed to find UDESC_CS_INTERFACE\n");
return (ENXIO);
}
UHSO_DPRINTF(1, "Mux port mask %x\n", desc->bDescriptorSubtype);
if (desc->bDescriptorSubtype == 0)
return (ENXIO);
/*
* The bitmask is one octet, loop through the number of
* bits that are set and create a TTY for each.
*/
for (i = 0; i < 8; i++) {
port = (1 << i);
if ((port & desc->bDescriptorSubtype) == port) {
UHSO_DPRINTF(2, "Found mux port %x (%d)\n", port, i);
tty = uhso_alloc_tty(sc);
if (tty < 0)
return (ENOMEM);
sc->sc_tty[tty].ht_muxport = i;
uerr = usbd_transfer_setup(sc->sc_udev,
&sc->sc_iface_index, sc->sc_tty[tty].ht_xfer,
uhso_ctrl_config, UHSO_CTRL_MAX, sc, &sc->sc_mtx);
if (uerr) {
device_printf(sc->sc_dev,
"Failed to setup control pipe: %s\n",
usbd_errstr(uerr));
return (ENXIO);
}
}
}
/* Setup the intr. endpoint */
uerr = usbd_transfer_setup(sc->sc_udev,
&iface->idesc->bInterfaceNumber, sc->sc_xfer,
uhso_mux_config, 1, sc, &sc->sc_mtx);
if (uerr)
return (ENXIO);
return (0);
}
/*
* Interrupt callback for the multiplexed serial port. Indicates
* which serial port has data waiting.
*/
static void
uhso_mux_intr_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct usb_page_cache *pc;
struct usb_page_search res;
struct uhso_softc *sc = usbd_xfer_softc(xfer);
unsigned int i, mux;
UHSO_DPRINTF(3, "status %d\n", USB_GET_STATE(xfer));
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
/*
* The multiplexed port number can be found at the first byte.
* It contains a bit mask, we transform this in to an integer.
*/
pc = usbd_xfer_get_frame(xfer, 0);
usbd_get_page(pc, 0, &res);
i = *((unsigned char *)res.buffer);
mux = 0;
while (i >>= 1) {
mux++;
}
UHSO_DPRINTF(3, "mux port %d (%d)\n", mux, i);
if (mux > UHSO_MPORT_TYPE_NOMAX)
break;
/* Issue a read for this serial port */
usbd_xfer_set_priv(
sc->sc_tty[mux].ht_xfer[UHSO_CTRL_READ],
&sc->sc_tty[mux]);
usbd_transfer_start(sc->sc_tty[mux].ht_xfer[UHSO_CTRL_READ]);
break;
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
break;
default:
UHSO_DPRINTF(0, "error: %s\n", usbd_errstr(error));
if (error == USB_ERR_CANCELLED)
break;
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
}
static void
uhso_mux_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uhso_softc *sc = usbd_xfer_softc(xfer);
struct usb_page_cache *pc;
struct usb_device_request req;
struct uhso_tty *ht;
int actlen, len;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
UHSO_DPRINTF(3, "status %d\n", USB_GET_STATE(xfer));
ht = usbd_xfer_get_priv(xfer);
UHSO_DPRINTF(3, "ht=%p open=%d\n", ht, ht->ht_open);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
/* Got data, send to ucom */
pc = usbd_xfer_get_frame(xfer, 1);
len = usbd_xfer_frame_len(xfer, 1);
UHSO_DPRINTF(3, "got %d bytes on mux port %d\n", len,
ht->ht_muxport);
if (len <= 0) {
usbd_transfer_start(sc->sc_xfer[UHSO_MUX_ENDPT_INTR]);
break;
}
/* Deliver data if the TTY is open, discard otherwise */
if (ht->ht_open)
ucom_put_data(&sc->sc_ucom[ht->ht_muxport], pc, 0, len);
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
memset(&req, 0, sizeof(struct usb_device_request));
req.bmRequestType = UT_READ_CLASS_INTERFACE;
req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE;
USETW(req.wValue, 0);
USETW(req.wIndex, ht->ht_muxport);
USETW(req.wLength, 1024);
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, &req, sizeof(req));
usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
usbd_xfer_set_frame_len(xfer, 1, 1024);
usbd_xfer_set_frames(xfer, 2);
usbd_transfer_submit(xfer);
break;
default:
UHSO_DPRINTF(0, "error: %s\n", usbd_errstr(error));
if (error == USB_ERR_CANCELLED)
break;
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
}
static void
uhso_mux_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uhso_softc *sc = usbd_xfer_softc(xfer);
struct uhso_tty *ht;
struct usb_page_cache *pc;
struct usb_device_request req;
int actlen;
struct usb_page_search res;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
ht = usbd_xfer_get_priv(xfer);
UHSO_DPRINTF(3, "status=%d, using mux port %d\n",
USB_GET_STATE(xfer), ht->ht_muxport);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
UHSO_DPRINTF(3, "wrote %zd data bytes to muxport %d\n",
actlen - sizeof(struct usb_device_request) ,
ht->ht_muxport);
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
pc = usbd_xfer_get_frame(xfer, 1);
if (ucom_get_data(&sc->sc_ucom[ht->ht_muxport], pc,
0, 32, &actlen)) {
usbd_get_page(pc, 0, &res);
memset(&req, 0, sizeof(struct usb_device_request));
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND;
USETW(req.wValue, 0);
USETW(req.wIndex, ht->ht_muxport);
USETW(req.wLength, actlen);
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, &req, sizeof(req));
usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
usbd_xfer_set_frame_len(xfer, 1, actlen);
usbd_xfer_set_frames(xfer, 2);
UHSO_DPRINTF(3, "Prepared %d bytes for transmit "
"on muxport %d\n", actlen, ht->ht_muxport);
usbd_transfer_submit(xfer);
}
break;
default:
UHSO_DPRINTF(0, "error: %s\n", usbd_errstr(error));
if (error == USB_ERR_CANCELLED)
break;
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
}
static int
uhso_attach_bulkserial(struct uhso_softc *sc, struct usb_interface *iface,
int type)
{
usb_error_t uerr;
int tty;
/* Try attaching RD/WR/INTR first */
uerr = usbd_transfer_setup(sc->sc_udev,
&iface->idesc->bInterfaceNumber, sc->sc_xfer,
uhso_bs_config, UHSO_BULK_ENDPT_MAX, sc, &sc->sc_mtx);
if (uerr) {
/* Try only RD/WR */
uerr = usbd_transfer_setup(sc->sc_udev,
&iface->idesc->bInterfaceNumber, sc->sc_xfer,
uhso_bs_config, UHSO_BULK_ENDPT_MAX - 1, sc, &sc->sc_mtx);
}
if (uerr) {
UHSO_DPRINTF(0, "usbd_transfer_setup failed");
return (-1);
}
tty = uhso_alloc_tty(sc);
if (tty < 0) {
usbd_transfer_unsetup(sc->sc_xfer, UHSO_BULK_ENDPT_MAX);
return (ENOMEM);
}
sc->sc_tty[tty].ht_muxport = -1;
return (0);
}
static void
uhso_bs_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uhso_softc *sc = usbd_xfer_softc(xfer);
struct usb_page_cache *pc;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
UHSO_DPRINTF(3, "status %d, actlen=%d\n", USB_GET_STATE(xfer), actlen);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
pc = usbd_xfer_get_frame(xfer, 0);
ucom_put_data(&sc->sc_ucom[0], pc, 0, actlen);
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
break;
default:
UHSO_DPRINTF(0, "error: %s\n", usbd_errstr(error));
if (error == USB_ERR_CANCELLED)
break;
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
}
static void
uhso_bs_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uhso_softc *sc = usbd_xfer_softc(xfer);
struct usb_page_cache *pc;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
UHSO_DPRINTF(3, "status %d, actlen=%d\n", USB_GET_STATE(xfer), actlen);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
case USB_ST_SETUP:
tr_setup:
pc = usbd_xfer_get_frame(xfer, 0);
if (ucom_get_data(&sc->sc_ucom[0], pc, 0, 8192, &actlen)) {
usbd_xfer_set_frame_len(xfer, 0, actlen);
usbd_transfer_submit(xfer);
}
break;
break;
default:
UHSO_DPRINTF(0, "error: %s\n", usbd_errstr(error));
if (error == USB_ERR_CANCELLED)
break;
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
}
static void
uhso_bs_cfg(struct uhso_softc *sc)
{
struct usb_device_request req;
usb_error_t uerr;
if (!(UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_BULK))
return;
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
USETW(req.wValue, sc->sc_line);
USETW(req.wIndex, sc->sc_iface_no);
USETW(req.wLength, 0);
uerr = ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom[0], &req, NULL, 0, 1000);
if (uerr != 0) {
device_printf(sc->sc_dev, "failed to set ctrl line state to "
"0x%02x: %s\n", sc->sc_line, usbd_errstr(uerr));
}
}
static void
uhso_bs_intr_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uhso_softc *sc = usbd_xfer_softc(xfer);
struct usb_page_cache *pc;
int actlen;
struct usb_cdc_notification cdc;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
UHSO_DPRINTF(3, "status %d, actlen=%d\n", USB_GET_STATE(xfer), actlen);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
if (actlen < UCDC_NOTIFICATION_LENGTH) {
UHSO_DPRINTF(0, "UCDC notification too short: %d\n", actlen);
goto tr_setup;
}
else if (actlen > (int)sizeof(struct usb_cdc_notification)) {
UHSO_DPRINTF(0, "UCDC notification too large: %d\n", actlen);
actlen = sizeof(struct usb_cdc_notification);
}
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, 0, &cdc, actlen);
if (UGETW(cdc.wIndex) != sc->sc_iface_no) {
UHSO_DPRINTF(0, "Interface mismatch, got %d expected %d\n",
UGETW(cdc.wIndex), sc->sc_iface_no);
goto tr_setup;
}
if (cdc.bmRequestType == UCDC_NOTIFICATION &&
cdc.bNotification == UCDC_N_SERIAL_STATE) {
UHSO_DPRINTF(2, "notify = 0x%02x\n", cdc.data[0]);
sc->sc_msr = 0;
sc->sc_lsr = 0;
if (cdc.data[0] & UCDC_N_SERIAL_RI)
sc->sc_msr |= SER_RI;
if (cdc.data[0] & UCDC_N_SERIAL_DSR)
sc->sc_msr |= SER_DSR;
if (cdc.data[0] & UCDC_N_SERIAL_DCD)
sc->sc_msr |= SER_DCD;
ucom_status_change(&sc->sc_ucom[0]);
}
case USB_ST_SETUP:
tr_setup:
default:
if (error == USB_ERR_CANCELLED)
break;
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
}
static void
uhso_ucom_cfg_get_status(struct ucom_softc *ucom, uint8_t *lsr, uint8_t *msr)
{
struct uhso_softc *sc = ucom->sc_parent;
*lsr = sc->sc_lsr;
*msr = sc->sc_msr;
}
static void
uhso_ucom_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff)
{
struct uhso_softc *sc = ucom->sc_parent;
if (!(UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_BULK))
return;
if (onoff)
sc->sc_line |= UCDC_LINE_DTR;
else
sc->sc_line &= ~UCDC_LINE_DTR;
uhso_bs_cfg(sc);
}
static void
uhso_ucom_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
{
struct uhso_softc *sc = ucom->sc_parent;
if (!(UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_BULK))
return;
if (onoff)
sc->sc_line |= UCDC_LINE_RTS;
else
sc->sc_line &= ~UCDC_LINE_RTS;
uhso_bs_cfg(sc);
}
static void
uhso_ucom_start_read(struct ucom_softc *ucom)
{
struct uhso_softc *sc = ucom->sc_parent;
UHSO_DPRINTF(3, "unit=%d, subunit=%d\n",
ucom->sc_super->sc_unit, ucom->sc_subunit);
if (UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_MUX) {
sc->sc_tty[ucom->sc_subunit].ht_open = 1;
usbd_transfer_start(sc->sc_xfer[UHSO_MUX_ENDPT_INTR]);
}
else if (UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_BULK) {
sc->sc_tty[0].ht_open = 1;
usbd_transfer_start(sc->sc_xfer[UHSO_BULK_ENDPT_READ]);
if (sc->sc_xfer[UHSO_BULK_ENDPT_INTR] != NULL)
usbd_transfer_start(sc->sc_xfer[UHSO_BULK_ENDPT_INTR]);
}
}
static void
uhso_ucom_stop_read(struct ucom_softc *ucom)
{
struct uhso_softc *sc = ucom->sc_parent;
if (UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_MUX) {
sc->sc_tty[ucom->sc_subunit].ht_open = 0;
usbd_transfer_stop(
sc->sc_tty[ucom->sc_subunit].ht_xfer[UHSO_CTRL_READ]);
}
else if (UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_BULK) {
sc->sc_tty[0].ht_open = 0;
usbd_transfer_start(sc->sc_xfer[UHSO_BULK_ENDPT_READ]);
if (sc->sc_xfer[UHSO_BULK_ENDPT_INTR] != NULL)
usbd_transfer_stop(sc->sc_xfer[UHSO_BULK_ENDPT_INTR]);
}
}
static void
uhso_ucom_start_write(struct ucom_softc *ucom)
{
struct uhso_softc *sc = ucom->sc_parent;
if (UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_MUX) {
UHSO_DPRINTF(3, "local unit %d\n", ucom->sc_subunit);
usbd_transfer_start(sc->sc_xfer[UHSO_MUX_ENDPT_INTR]);
usbd_xfer_set_priv(
sc->sc_tty[ucom->sc_subunit].ht_xfer[UHSO_CTRL_WRITE],
&sc->sc_tty[ucom->sc_subunit]);
usbd_transfer_start(
sc->sc_tty[ucom->sc_subunit].ht_xfer[UHSO_CTRL_WRITE]);
}
else if (UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_BULK) {
usbd_transfer_start(sc->sc_xfer[UHSO_BULK_ENDPT_WRITE]);
}
}
static void
uhso_ucom_stop_write(struct ucom_softc *ucom)
{
struct uhso_softc *sc = ucom->sc_parent;
if (UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_MUX) {
usbd_transfer_stop(
sc->sc_tty[ucom->sc_subunit].ht_xfer[UHSO_CTRL_WRITE]);
}
else if (UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_BULK) {
usbd_transfer_stop(sc->sc_xfer[UHSO_BULK_ENDPT_WRITE]);
}
}
static int
uhso_attach_ifnet(struct uhso_softc *sc, struct usb_interface *iface, int type)
{
struct ifnet *ifp;
usb_error_t uerr;
struct sysctl_ctx_list *sctx;
struct sysctl_oid *soid;
unsigned int devunit;
uerr = usbd_transfer_setup(sc->sc_udev,
&iface->idesc->bInterfaceNumber, sc->sc_if_xfer,
uhso_ifnet_config, UHSO_IFNET_MAX, sc, &sc->sc_mtx);
if (uerr) {
UHSO_DPRINTF(0, "usbd_transfer_setup failed: %s\n",
usbd_errstr(uerr));
return (-1);
}
sc->sc_ifp = ifp = if_alloc(IFT_OTHER);
if (sc->sc_ifp == NULL) {
device_printf(sc->sc_dev, "if_alloc() failed\n");
return (-1);
}
callout_init_mtx(&sc->sc_c, &sc->sc_mtx, 0);
mtx_lock(&sc->sc_mtx);
callout_reset(&sc->sc_c, 1, uhso_if_rxflush, sc);
mtx_unlock(&sc->sc_mtx);
/*
* We create our own unit numbers for ifnet devices because the
* USB interface unit numbers can be at arbitrary positions yielding
* odd looking device names.
*/
devunit = alloc_unr(uhso_ifnet_unit);
if_initname(ifp, device_get_name(sc->sc_dev), devunit);
ifp->if_mtu = UHSO_MAX_MTU;
ifp->if_ioctl = uhso_if_ioctl;
ifp->if_init = uhso_if_init;
ifp->if_start = uhso_if_start;
ifp->if_output = uhso_if_output;
ifp->if_flags = IFF_BROADCAST | IFF_MULTICAST | IFF_NOARP;
ifp->if_softc = sc;
IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
IFQ_SET_READY(&ifp->if_snd);
if_attach(ifp);
bpfattach(ifp, DLT_RAW, 0);
sctx = device_get_sysctl_ctx(sc->sc_dev);
soid = device_get_sysctl_tree(sc->sc_dev);
/* Unlocked read... */
SYSCTL_ADD_STRING(sctx, SYSCTL_CHILDREN(soid), OID_AUTO, "netif",
CTLFLAG_RD, ifp->if_xname, 0, "Attached network interface");
return (0);
}
static void
uhso_ifnet_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uhso_softc *sc = usbd_xfer_softc(xfer);
struct mbuf *m;
struct usb_page_cache *pc;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
UHSO_DPRINTF(3, "status=%d, actlen=%d\n", USB_GET_STATE(xfer), actlen);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
if (actlen > 0 && (sc->sc_ifp->if_drv_flags & IFF_DRV_RUNNING)) {
pc = usbd_xfer_get_frame(xfer, 0);
if (mbufq_full(&sc->sc_rxq))
break;
m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
usbd_copy_out(pc, 0, mtod(m, uint8_t *), actlen);
m->m_pkthdr.len = m->m_len = actlen;
/* Enqueue frame for further processing */
mbufq_enqueue(&sc->sc_rxq, m);
if (!callout_pending(&sc->sc_c) ||
!callout_active(&sc->sc_c)) {
callout_schedule(&sc->sc_c, 1);
}
}
/* FALLTHROUGH */
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
break;
default:
UHSO_DPRINTF(0, "error: %s\n", usbd_errstr(error));
if (error == USB_ERR_CANCELLED)
break;
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
}
/*
* Deferred RX processing, called with mutex locked.
*
* Each frame we receive might contain several small ip-packets as well
* as partial ip-packets. We need to separate/assemble them into individual
* packets before sending them to the ip-layer.
*/
static void
uhso_if_rxflush(void *arg)
{
struct epoch_tracker et;
struct uhso_softc *sc = arg;
struct ifnet *ifp = sc->sc_ifp;
uint8_t *cp;
struct mbuf *m, *m0, *mwait;
struct ip *ip;
#ifdef INET6
struct ip6_hdr *ip6;
#endif
uint16_t iplen;
int isr;
m = NULL;
mwait = sc->sc_mwait;
NET_EPOCH_ENTER(et);
for (;;) {
if (m == NULL) {
if ((m = mbufq_dequeue(&sc->sc_rxq)) == NULL)
break;
UHSO_DPRINTF(3, "dequeue m=%p, len=%d\n", m, m->m_len);
}
mtx_unlock(&sc->sc_mtx);
/* Do we have a partial packet waiting? */
if (mwait != NULL) {
m0 = mwait;
mwait = NULL;
UHSO_DPRINTF(3, "partial m0=%p(%d), concat w/ m=%p(%d)\n",
m0, m0->m_len, m, m->m_len);
m_catpkt(m0, m);
m = m_pullup(m0, sizeof(struct ip));
if (m == NULL) {
if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
UHSO_DPRINTF(0, "m_pullup failed\n");
mtx_lock(&sc->sc_mtx);
continue;
}
UHSO_DPRINTF(3, "Constructed mbuf=%p, len=%d\n",
m, m->m_pkthdr.len);
}
cp = mtod(m, uint8_t *);
ip = (struct ip *)cp;
#ifdef INET6
ip6 = (struct ip6_hdr *)cp;
#endif
/* Check for IPv4 */
if (ip->ip_v == IPVERSION) {
iplen = htons(ip->ip_len);
isr = NETISR_IP;
}
#ifdef INET6
/* Check for IPv6 */
else if ((ip6->ip6_vfc & IPV6_VERSION_MASK) == IPV6_VERSION) {
iplen = htons(ip6->ip6_plen);
isr = NETISR_IPV6;
}
#endif
else {
UHSO_DPRINTF(0, "got unexpected ip version %d, "
"m=%p, len=%d\n", (*cp & 0xf0) >> 4, m, m->m_len);
if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
UHSO_HEXDUMP(cp, 4);
m_freem(m);
m = NULL;
mtx_lock(&sc->sc_mtx);
continue;
}
if (iplen == 0) {
UHSO_DPRINTF(0, "Zero IP length\n");
if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
m_freem(m);
m = NULL;
mtx_lock(&sc->sc_mtx);
continue;
}
UHSO_DPRINTF(3, "m=%p, len=%d, cp=%p, iplen=%d\n",
m, m->m_pkthdr.len, cp, iplen);
m0 = NULL;
/* More IP packets in this mbuf */
if (iplen < m->m_pkthdr.len) {
m0 = m;
/*
* Allocate a new mbuf for this IP packet and
* copy the IP-packet into it.
*/
m = m_getcl(M_WAITOK, MT_DATA, M_PKTHDR);
memcpy(mtod(m, uint8_t *), mtod(m0, uint8_t *), iplen);
m->m_pkthdr.len = m->m_len = iplen;
/* Adjust the size of the original mbuf */
m_adj(m0, iplen);
m0 = m_defrag(m0, M_WAITOK);
UHSO_DPRINTF(3, "New mbuf=%p, len=%d/%d, m0=%p, "
"m0_len=%d/%d\n", m, m->m_pkthdr.len, m->m_len,
m0, m0->m_pkthdr.len, m0->m_len);
}
else if (iplen > m->m_pkthdr.len) {
UHSO_DPRINTF(3, "Deferred mbuf=%p, len=%d\n",
m, m->m_pkthdr.len);
mwait = m;
m = NULL;
mtx_lock(&sc->sc_mtx);
continue;
}
if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
m->m_pkthdr.rcvif = ifp;
/* Dispatch to IP layer */
BPF_MTAP(sc->sc_ifp, m);
M_SETFIB(m, ifp->if_fib);
netisr_dispatch(isr, m);
m = m0 != NULL ? m0 : NULL;
mtx_lock(&sc->sc_mtx);
}
NET_EPOCH_EXIT(et);
sc->sc_mwait = mwait;
}
static void
uhso_ifnet_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct uhso_softc *sc = usbd_xfer_softc(xfer);
struct ifnet *ifp = sc->sc_ifp;
struct usb_page_cache *pc;
struct mbuf *m;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
UHSO_DPRINTF(3, "status %d, actlen=%d\n", USB_GET_STATE(xfer), actlen);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
case USB_ST_SETUP:
tr_setup:
IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
if (m == NULL)
break;
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
if (m->m_pkthdr.len > MCLBYTES)
m->m_pkthdr.len = MCLBYTES;
usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len);
pc = usbd_xfer_get_frame(xfer, 0);
usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len);
usbd_transfer_submit(xfer);
BPF_MTAP(ifp, m);
m_freem(m);
break;
default:
UHSO_DPRINTF(0, "error: %s\n", usbd_errstr(error));
if (error == USB_ERR_CANCELLED)
break;
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
}
static int
uhso_if_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct uhso_softc *sc;
sc = ifp->if_softc;
switch (cmd) {
case SIOCSIFFLAGS:
if (ifp->if_flags & IFF_UP) {
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
uhso_if_init(sc);
}
}
else {
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
mtx_lock(&sc->sc_mtx);
uhso_if_stop(sc);
mtx_unlock(&sc->sc_mtx);
}
}
break;
case SIOCSIFADDR:
case SIOCADDMULTI:
case SIOCDELMULTI:
break;
default:
return (EINVAL);
}
return (0);
}
static void
uhso_if_init(void *priv)
{
struct uhso_softc *sc = priv;
struct ifnet *ifp = sc->sc_ifp;
mtx_lock(&sc->sc_mtx);
uhso_if_stop(sc);
ifp = sc->sc_ifp;
ifp->if_flags |= IFF_UP;
ifp->if_drv_flags |= IFF_DRV_RUNNING;
mtx_unlock(&sc->sc_mtx);
UHSO_DPRINTF(2, "ifnet initialized\n");
}
static int
uhso_if_output(struct ifnet *ifp, struct mbuf *m0, const struct sockaddr *dst,
struct route *ro)
{
int error;
/* Only IPv4/6 support */
if (dst->sa_family != AF_INET
#ifdef INET6
&& dst->sa_family != AF_INET6
#endif
) {
return (EAFNOSUPPORT);
}
error = (ifp->if_transmit)(ifp, m0);
if (error) {
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
return (ENOBUFS);
}
if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
return (0);
}
static void
uhso_if_start(struct ifnet *ifp)
{
struct uhso_softc *sc = ifp->if_softc;
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
UHSO_DPRINTF(1, "Not running\n");
return;
}
mtx_lock(&sc->sc_mtx);
usbd_transfer_start(sc->sc_if_xfer[UHSO_IFNET_READ]);
usbd_transfer_start(sc->sc_if_xfer[UHSO_IFNET_WRITE]);
mtx_unlock(&sc->sc_mtx);
UHSO_DPRINTF(3, "interface started\n");
}
static void
uhso_if_stop(struct uhso_softc *sc)
{
usbd_transfer_stop(sc->sc_if_xfer[UHSO_IFNET_READ]);
usbd_transfer_stop(sc->sc_if_xfer[UHSO_IFNET_WRITE]);
sc->sc_ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
}
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