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NetBSD/sys/dev/usb/uhso.c

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/* $NetBSD: uhso.c,v 1.11 2013/01/05 01:30:17 christos Exp $ */
/*-
* Copyright (c) 2009 Iain Hibbert
* Copyright (c) 2008 Fredrik Lindberg
* 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.
*/
/*
* This driver originated as the hso module for FreeBSD written by
* Fredrik Lindberg[1]. It has been rewritten almost completely for
* NetBSD, and to support more devices with information extracted from
* the Linux hso driver provided by Option N.V.[2]
*
* [1] http://www.shapeshifter.se/code/hso
* [2] http://www.pharscape.org/hso.htm
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: uhso.c,v 1.11 2013/01/05 01:30:17 christos Exp $");
#ifdef _KERNEL_OPT
#include "opt_inet.h"
#endif
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/fcntl.h>
#include <sys/kauth.h>
#include <sys/kernel.h>
#include <sys/kmem.h>
#include <sys/mbuf.h>
#include <sys/poll.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/systm.h>
#include <sys/tty.h>
#include <sys/vnode.h>
#include <sys/lwp.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/netisr.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.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/umassvar.h>
#include <dev/scsipi/scsi_disk.h>
#include "usbdevs.h"
#undef DPRINTF
#ifdef UHSO_DEBUG
/*
* defined levels
* 0 warnings only
* 1 informational
* 5 really chatty
*/
int uhso_debug = 0;
#define DPRINTF(n, ...) do { \
if (uhso_debug >= (n)) { \
printf("%s: ", __func__); \
printf(__VA_ARGS__); \
} \
} while (/* CONSTCOND */0)
#else
#define DPRINTF(...) ((void)0)
#endif
/*
* When first attached, the device class will be 0 and the modem
* will attach as UMASS until a SCSI REZERO_UNIT command is sent,
* in which case it will detach and reattach with device class set
* to UDCLASS_VENDOR (0xff) and provide the serial interfaces.
*
* If autoswitch is set (the default) this will happen automatically.
*/
Static int uhso_autoswitch = 1;
SYSCTL_SETUP(sysctl_hw_uhso_setup, "uhso sysctl setup")
{
const struct sysctlnode *node = NULL;
sysctl_createv(clog, 0, NULL, NULL,
CTLFLAG_PERMANENT,
CTLTYPE_NODE, "hw",
NULL,
NULL, 0,
NULL, 0,
CTL_HW, CTL_EOL);
sysctl_createv(clog, 0, NULL, &node,
CTLFLAG_PERMANENT,
CTLTYPE_NODE, "uhso",
NULL,
NULL, 0,
NULL, 0,
CTL_HW, CTL_CREATE, CTL_EOL);
if (node == NULL)
return;
#ifdef UHSO_DEBUG
sysctl_createv(clog, 0, &node, NULL,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE,
CTLTYPE_INT, "debug",
SYSCTL_DESCR("uhso debug level (0, 1, 5)"),
NULL, 0,
&uhso_debug, sizeof(uhso_debug),
CTL_CREATE, CTL_EOL);
#endif
sysctl_createv(clog, 0, &node, NULL,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE,
CTLTYPE_INT, "autoswitch",
SYSCTL_DESCR("automatically switch device into modem mode"),
NULL, 0,
&uhso_autoswitch, sizeof(uhso_autoswitch),
CTL_CREATE, CTL_EOL);
}
/*
* The uhso modems have a number of interfaces providing a variety of
* IO ports using the bulk endpoints, or multiplexed on the control
* endpoints. We separate the ports by function and provide each with
* a predictable index number used to construct the device minor number.
*
* The Network port is configured as a network interface rather than
* a tty as it provides raw IPv4 packets.
*/
Static const char *uhso_port_name[] = {
"Control",
"Diagnostic",
"Diagnostic2",
"Application",
"Application2",
"GPS",
"GPS Control",
"PC Smartcard",
"Modem",
"MSD", /* "Modem Sharing Device" ? */
"Voice",
"Network",
};
#define UHSO_PORT_CONTROL 0x00
#define UHSO_PORT_DIAG 0x01
#define UHSO_PORT_DIAG2 0x02
#define UHSO_PORT_APP 0x03
#define UHSO_PORT_APP2 0x04
#define UHSO_PORT_GPS 0x05
#define UHSO_PORT_GPS_CONTROL 0x06
#define UHSO_PORT_PCSC 0x07
#define UHSO_PORT_MODEM 0x08
#define UHSO_PORT_MSD 0x09
#define UHSO_PORT_VOICE 0x0a
#define UHSO_PORT_NETWORK 0x0b
#define UHSO_PORT_MAX __arraycount(uhso_port_name)
#define UHSO_IFACE_MUX 0x20
#define UHSO_IFACE_BULK 0x40
#define UHSO_IFACE_IFNET 0x80
/*
* The interface specification can sometimes be deduced from the device
* type and interface number, or some modems support a vendor specific
* way to read config info which we can translate to the port index.
*/
Static const uint8_t uhso_spec_default[] = {
UHSO_IFACE_IFNET | UHSO_PORT_NETWORK | UHSO_IFACE_MUX,
UHSO_IFACE_BULK | UHSO_PORT_DIAG,
UHSO_IFACE_BULK | UHSO_PORT_MODEM,
};
Static const uint8_t uhso_spec_icon321[] = {
UHSO_IFACE_IFNET | UHSO_PORT_NETWORK | UHSO_IFACE_MUX,
UHSO_IFACE_BULK | UHSO_PORT_DIAG2,
UHSO_IFACE_BULK | UHSO_PORT_MODEM,
UHSO_IFACE_BULK | UHSO_PORT_DIAG,
};
Static const uint8_t uhso_spec_config[] = {
0,
UHSO_IFACE_BULK | UHSO_PORT_DIAG,
UHSO_IFACE_BULK | UHSO_PORT_GPS,
UHSO_IFACE_BULK | UHSO_PORT_GPS_CONTROL,
UHSO_IFACE_BULK | UHSO_PORT_APP,
UHSO_IFACE_BULK | UHSO_PORT_APP2,
UHSO_IFACE_BULK | UHSO_PORT_CONTROL,
UHSO_IFACE_IFNET | UHSO_PORT_NETWORK,
UHSO_IFACE_BULK | UHSO_PORT_MODEM,
UHSO_IFACE_BULK | UHSO_PORT_MSD,
UHSO_IFACE_BULK | UHSO_PORT_PCSC,
UHSO_IFACE_BULK | UHSO_PORT_VOICE,
};
struct uhso_dev {
uint16_t vendor;
uint16_t product;
uint16_t type;
};
#define UHSOTYPE_DEFAULT 1
#define UHSOTYPE_ICON321 2
#define UHSOTYPE_CONFIG 3
Static const struct uhso_dev uhso_devs[] = {
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_MAXHSDPA, UHSOTYPE_DEFAULT },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GSICON72, UHSOTYPE_DEFAULT },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_ICON225, UHSOTYPE_DEFAULT },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GEHSUPA, UHSOTYPE_DEFAULT },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GTHSUPA, UHSOTYPE_DEFAULT },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GSHSUPA, UHSOTYPE_DEFAULT },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GE40X1, UHSOTYPE_CONFIG },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GE40X2, UHSOTYPE_CONFIG },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GE40X3, UHSOTYPE_CONFIG },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_ICON401, UHSOTYPE_CONFIG },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GTM382, UHSOTYPE_CONFIG },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GE40X4, UHSOTYPE_CONFIG },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_ICONEDGE, UHSOTYPE_DEFAULT },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_MODHSXPA, UHSOTYPE_ICON321 },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_ICON321, UHSOTYPE_ICON321 },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_ICON322, UHSOTYPE_ICON321 },
{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_ICON505, UHSOTYPE_CONFIG },
};
#define uhso_lookup(p, v) ((const struct uhso_dev *)usb_lookup(uhso_devs, (p), (v)))
/* IO buffer sizes */
#define UHSO_MUX_WSIZE 64
#define UHSO_MUX_RSIZE 1024
#define UHSO_BULK_WSIZE 8192
#define UHSO_BULK_RSIZE 4096
#define UHSO_IFNET_MTU 1500
/*
* Each IO port provided by the modem can be mapped to a network
* interface (when hp_ifp != NULL) or a tty (when hp_tp != NULL)
* which may be multiplexed and sharing interrupt and control endpoints
* from an interface, or using the dedicated bulk endpoints.
*/
struct uhso_port;
struct uhso_softc;
/* uhso callback functions return errno on failure */
typedef int (*uhso_callback)(struct uhso_port *);
struct uhso_port {
struct uhso_softc *hp_sc; /* master softc */
struct tty *hp_tp; /* tty pointer */
struct ifnet *hp_ifp; /* ifnet pointer */
unsigned int hp_flags; /* see below */
int hp_swflags; /* persistent tty flags */
int hp_status; /* modem status */
/* port type specific handlers */
uhso_callback hp_abort; /* abort any transfers */
uhso_callback hp_detach; /* detach port completely */
uhso_callback hp_init; /* init port (first open) */
uhso_callback hp_clean; /* clean port (last close) */
uhso_callback hp_write; /* write data */
usbd_callback hp_write_cb; /* write callback */
uhso_callback hp_read; /* read data */
usbd_callback hp_read_cb; /* read callback */
uhso_callback hp_control; /* set control lines */
usbd_interface_handle hp_ifh; /* interface handle */
unsigned int hp_index; /* usb request index */
int hp_iaddr; /* interrupt endpoint */
usbd_pipe_handle hp_ipipe; /* interrupt pipe */
void *hp_ibuf; /* interrupt buffer */
size_t hp_isize; /* allocated size */
int hp_raddr; /* bulk in endpoint */
usbd_pipe_handle hp_rpipe; /* bulk in pipe */
usbd_xfer_handle hp_rxfer; /* input xfer */
void *hp_rbuf; /* input buffer */
size_t hp_rlen; /* fill length */
size_t hp_rsize; /* allocated size */
int hp_waddr; /* bulk out endpoint */
usbd_pipe_handle hp_wpipe; /* bulk out pipe */
usbd_xfer_handle hp_wxfer; /* output xfer */
void *hp_wbuf; /* output buffer */
size_t hp_wlen; /* fill length */
size_t hp_wsize; /* allocated size */
struct mbuf *hp_mbuf; /* partial packet */
};
/* hp_flags */
#define UHSO_PORT_MUXPIPE __BIT(0) /* duplicate ipipe/ibuf references */
#define UHSO_PORT_MUXREADY __BIT(1) /* input is ready */
#define UHSO_PORT_MUXBUSY __BIT(2) /* read in progress */
struct uhso_softc {
device_t sc_dev; /* self */
usbd_device_handle sc_udev;
int sc_refcnt;
struct uhso_port *sc_port[UHSO_PORT_MAX];
};
#define UHSO_CONFIG_NO 1
int uhso_match(device_t, cfdata_t, void *);
void uhso_attach(device_t, device_t, void *);
int uhso_detach(device_t, int);
extern struct cfdriver uhso_cd;
CFATTACH_DECL_NEW(uhso, sizeof(struct uhso_softc), uhso_match, uhso_attach,
uhso_detach, NULL);
Static int uhso_switch_mode(usbd_device_handle);
Static int uhso_get_iface_spec(struct usb_attach_arg *, uint8_t, uint8_t *);
Static usb_endpoint_descriptor_t *uhso_get_endpoint(usbd_interface_handle, int, int);
Static void uhso_mux_attach(struct uhso_softc *, usbd_interface_handle, int);
Static int uhso_mux_abort(struct uhso_port *);
Static int uhso_mux_detach(struct uhso_port *);
Static int uhso_mux_init(struct uhso_port *);
Static int uhso_mux_clean(struct uhso_port *);
Static int uhso_mux_write(struct uhso_port *);
Static int uhso_mux_read(struct uhso_port *);
Static int uhso_mux_control(struct uhso_port *);
Static void uhso_mux_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void uhso_bulk_attach(struct uhso_softc *, usbd_interface_handle, int);
Static int uhso_bulk_abort(struct uhso_port *);
Static int uhso_bulk_detach(struct uhso_port *);
Static int uhso_bulk_init(struct uhso_port *);
Static int uhso_bulk_clean(struct uhso_port *);
Static int uhso_bulk_write(struct uhso_port *);
Static int uhso_bulk_read(struct uhso_port *);
Static int uhso_bulk_control(struct uhso_port *);
Static void uhso_bulk_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void uhso_tty_attach(struct uhso_port *);
Static void uhso_tty_detach(struct uhso_port *);
Static void uhso_tty_read_cb(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void uhso_tty_write_cb(usbd_xfer_handle, usbd_private_handle, usbd_status);
dev_type_open(uhso_tty_open);
dev_type_close(uhso_tty_close);
dev_type_read(uhso_tty_read);
dev_type_write(uhso_tty_write);
dev_type_ioctl(uhso_tty_ioctl);
dev_type_stop(uhso_tty_stop);
dev_type_tty(uhso_tty_tty);
dev_type_poll(uhso_tty_poll);
const struct cdevsw uhso_cdevsw = {
.d_open = uhso_tty_open,
.d_close = uhso_tty_close,
.d_read = uhso_tty_read,
.d_write = uhso_tty_write,
.d_ioctl = uhso_tty_ioctl,
.d_stop = uhso_tty_stop,
.d_tty = uhso_tty_tty,
.d_poll = uhso_tty_poll,
.d_mmap = nommap,
.d_kqfilter = ttykqfilter,
.d_flag = D_TTY,
};
Static int uhso_tty_init(struct uhso_port *);
Static void uhso_tty_clean(struct uhso_port *);
Static int uhso_tty_do_ioctl(struct uhso_port *, u_long, void *, int, struct lwp *);
Static void uhso_tty_start(struct tty *);
Static int uhso_tty_param(struct tty *, struct termios *);
Static int uhso_tty_control(struct uhso_port *, u_long, int);
#define UHSO_UNIT_MASK 0x0fff0
#define UHSO_PORT_MASK 0x0000f
#define UHSO_DIALOUT_MASK 0x80000
#define UHSO_CALLUNIT_MASK 0x40000
#define UHSOUNIT(x) ((minor(x) & UHSO_UNIT_MASK) >> 4)
#define UHSOPORT(x) (minor(x) & UHSO_PORT_MASK)
#define UHSODIALOUT(x) (minor(x) & UHSO_DIALOUT_MASK)
#define UHSOMINOR(u, p) ((((u) << 4) & UHSO_UNIT_MASK) | ((p) & UHSO_UNIT_MASK))
Static void uhso_ifnet_attach(struct uhso_softc *, usbd_interface_handle, int);
Static int uhso_ifnet_abort(struct uhso_port *);
Static int uhso_ifnet_detach(struct uhso_port *);
Static void uhso_ifnet_read_cb(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void uhso_ifnet_input(struct ifnet *, struct mbuf **, uint8_t *, size_t);
Static void uhso_ifnet_write_cb(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static int uhso_ifnet_ioctl(struct ifnet *, u_long, void *);
Static int uhso_ifnet_init(struct uhso_port *);
Static void uhso_ifnet_clean(struct uhso_port *);
Static void uhso_ifnet_start(struct ifnet *);
Static int uhso_ifnet_output(struct ifnet *, struct mbuf *, const struct sockaddr *, struct rtentry *);
/*******************************************************************************
*
* USB autoconfig
*
*/
int
uhso_match(device_t parent, cfdata_t match, void *aux)
{
struct usb_attach_arg *uaa = aux;
/*
* don't claim this device if autoswitch is disabled
* and it is not in modem mode already
*/
if (!uhso_autoswitch && uaa->class != UDCLASS_VENDOR)
return UMATCH_NONE;
if (uhso_lookup(uaa->vendor, uaa->product))
return UMATCH_VENDOR_PRODUCT;
return UMATCH_NONE;
}
void
uhso_attach(device_t parent, device_t self, void *aux)
{
struct uhso_softc *sc = device_private(self);
struct usb_attach_arg *uaa = aux;
usbd_interface_handle ifh;
char *devinfop;
uint8_t count, i, spec;
usbd_status status;
DPRINTF(1, ": sc = %p, self=%p", sc, self);
sc->sc_dev = self;
sc->sc_udev = uaa->device;
aprint_naive("\n");
aprint_normal("\n");
devinfop = usbd_devinfo_alloc(uaa->device, 0);
aprint_normal_dev(self, "%s\n", devinfop);
usbd_devinfo_free(devinfop);
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev);
status = usbd_set_config_no(sc->sc_udev, UHSO_CONFIG_NO, 1);
if (status != USBD_NORMAL_COMPLETION) {
aprint_error_dev(self, "failed to set configuration"
", err=%s\n", usbd_errstr(status));
return;
}
if (uaa->class != UDCLASS_VENDOR) {
aprint_verbose_dev(self, "Switching device into modem mode..\n");
if (uhso_switch_mode(uaa->device) != 0)
aprint_error_dev(self, "modem switch failed\n");
return;
}
count = 0;
(void)usbd_interface_count(sc->sc_udev, &count);
DPRINTF(1, "interface count %d\n", count);
for (i = 0; i < count; i++) {
status = usbd_device2interface_handle(sc->sc_udev, i, &ifh);
if (status != USBD_NORMAL_COMPLETION) {
aprint_error_dev(self,
"could not get interface %d: %s\n",
i, usbd_errstr(status));
return;
}
if (!uhso_get_iface_spec(uaa, i, &spec)) {
aprint_error_dev(self,
"could not get interface %d specification\n", i);
return;
}
if (ISSET(spec, UHSO_IFACE_MUX))
uhso_mux_attach(sc, ifh, UHSOPORT(spec));
if (ISSET(spec, UHSO_IFACE_BULK))
uhso_bulk_attach(sc, ifh, UHSOPORT(spec));
if (ISSET(spec, UHSO_IFACE_IFNET))
uhso_ifnet_attach(sc, ifh, UHSOPORT(spec));
}
if (!pmf_device_register(self, NULL, NULL))
aprint_error_dev(self, "couldn't establish power handler\n");
}
int
uhso_detach(device_t self, int flags)
{
struct uhso_softc *sc = device_private(self);
struct uhso_port *hp;
devmajor_t major;
devminor_t minor;
unsigned int i;
int s;
pmf_device_deregister(self);
for (i = 0; i < UHSO_PORT_MAX; i++) {
hp = sc->sc_port[i];
if (hp != NULL)
(*hp->hp_abort)(hp);
}
s = splusb();
if (sc->sc_refcnt-- > 0) {
DPRINTF(1, "waiting for refcnt (%d)..\n", sc->sc_refcnt);
usb_detach_waitold(sc->sc_dev);
}
splx(s);
/*
* XXX the tty close routine increases/decreases refcnt causing
* XXX another usb_detach_wakeupold() does it matter, should these
* XXX be before the detach_wait? or before the abort?
*/
/* Nuke the vnodes for any open instances (calls close). */
major = cdevsw_lookup_major(&uhso_cdevsw);
minor = UHSOMINOR(device_unit(sc->sc_dev), 0);
vdevgone(major, minor, minor + UHSO_PORT_MAX, VCHR);
minor = UHSOMINOR(device_unit(sc->sc_dev), 0) | UHSO_DIALOUT_MASK;
vdevgone(major, minor, minor + UHSO_PORT_MAX, VCHR);
minor = UHSOMINOR(device_unit(sc->sc_dev), 0) | UHSO_CALLUNIT_MASK;
vdevgone(major, minor, minor + UHSO_PORT_MAX, VCHR);
for (i = 0; i < UHSO_PORT_MAX; i++) {
hp = sc->sc_port[i];
if (hp != NULL)
(*hp->hp_detach)(hp);
}
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
return 0;
}
/*
* Send SCSI REZERO_UNIT command to switch device into modem mode
*/
Static int
uhso_switch_mode(usbd_device_handle udev)
{
umass_bbb_cbw_t cmd;
usb_endpoint_descriptor_t *ed;
usbd_interface_handle ifh;
usbd_pipe_handle pipe;
usbd_xfer_handle xfer;
usbd_status status;
status = usbd_device2interface_handle(udev, 0, &ifh);
if (status != USBD_NORMAL_COMPLETION)
return EIO;
ed = uhso_get_endpoint(ifh, UE_BULK, UE_DIR_OUT);
if (ed == NULL)
return ENODEV;
status = usbd_open_pipe(ifh, ed->bEndpointAddress, 0, &pipe);
if (status != USBD_NORMAL_COMPLETION)
return EIO;
xfer = usbd_alloc_xfer(udev);
if (xfer == NULL)
return ENOMEM;
USETDW(cmd.dCBWSignature, CBWSIGNATURE);
USETDW(cmd.dCBWTag, 1);
USETDW(cmd.dCBWDataTransferLength, 0);
cmd.bCBWFlags = CBWFLAGS_OUT;
cmd.bCBWLUN = 0;
cmd.bCDBLength = 6;
memset(&cmd.CBWCDB, 0, CBWCDBLENGTH);
cmd.CBWCDB[0] = SCSI_REZERO_UNIT;
usbd_setup_xfer(xfer, pipe, NULL, &cmd, sizeof(cmd),
USBD_SYNCHRONOUS, USBD_DEFAULT_TIMEOUT, NULL);
status = usbd_transfer(xfer);
usbd_abort_pipe(pipe);
usbd_close_pipe(pipe);
usbd_free_xfer(xfer);
return (status == USBD_NORMAL_COMPLETION ? 0 : EIO);
}
Static int
uhso_get_iface_spec(struct usb_attach_arg *uaa, uint8_t ifnum, uint8_t *spec)
{
const struct uhso_dev *hd;
uint8_t config[17];
usb_device_request_t req;
usbd_status status;
hd = uhso_lookup(uaa->vendor, uaa->product);
KASSERT(hd != NULL);
switch (hd->type) {
case UHSOTYPE_DEFAULT:
if (ifnum > __arraycount(uhso_spec_default))
break;
*spec = uhso_spec_default[ifnum];
return 1;
case UHSOTYPE_ICON321:
if (ifnum > __arraycount(uhso_spec_icon321))
break;
*spec = uhso_spec_icon321[ifnum];
return 1;
case UHSOTYPE_CONFIG:
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = 0x86; /* "Config Info" */
USETW(req.wValue, 0);
USETW(req.wIndex, 0);
USETW(req.wLength, sizeof(config));
status = usbd_do_request(uaa->device, &req, config);
if (status != USBD_NORMAL_COMPLETION)
break;
if (ifnum > __arraycount(config)
|| config[ifnum] > __arraycount(uhso_spec_config))
break;
*spec = uhso_spec_config[config[ifnum]];
/*
* Apparently some modems also have a CRC bug that is
* indicated by ISSET(config[16], __BIT(0)) but we dont
* handle it at this time.
*/
return 1;
default:
DPRINTF(0, "unknown interface type\n");
break;
}
return 0;
}
Static usb_endpoint_descriptor_t *
uhso_get_endpoint(usbd_interface_handle ifh, int type, int dir)
{
usb_endpoint_descriptor_t *ed;
uint8_t count, i;
count = 0;
(void)usbd_endpoint_count(ifh, &count);
for (i = 0; i < count; i++) {
ed = usbd_interface2endpoint_descriptor(ifh, i);
if (ed != NULL
&& UE_GET_XFERTYPE(ed->bmAttributes) == type
&& UE_GET_DIR(ed->bEndpointAddress) == dir)
return ed;
}
return NULL;
}
/******************************************************************************
*
* Multiplexed ports signal with the interrupt endpoint to indicate
* when data is available for reading, and a separate request is made on
* the control endpoint to read or write on each port. The offsets in the
* table below relate to bit numbers in the mux mask, identifying each port.
*/
Static const int uhso_mux_port[] = {
UHSO_PORT_CONTROL,
UHSO_PORT_APP,
UHSO_PORT_PCSC,
UHSO_PORT_GPS,
UHSO_PORT_APP2,
};
Static void
uhso_mux_attach(struct uhso_softc *sc, usbd_interface_handle ifh, int index)
{
usbd_desc_iter_t iter;
const usb_descriptor_t *desc;
usb_endpoint_descriptor_t *ed;
usbd_pipe_handle pipe;
struct uhso_port *hp;
uint8_t *buf;
size_t size;
unsigned int i, mux, flags;
int addr;
usbd_status status;
ed = uhso_get_endpoint(ifh, UE_INTERRUPT, UE_DIR_IN);
if (ed == NULL) {
aprint_error_dev(sc->sc_dev, "no interrupt endpoint\n");
return;
}
addr = ed->bEndpointAddress;
size = UGETW(ed->wMaxPacketSize);
/*
* There should be an additional "Class Specific" descriptor on
* the mux interface containing a single byte with a bitmask of
* enabled ports. We need to look through the device descriptor
* to find it and the port index is found from the uhso_mux_port
* array, above.
*/
usb_desc_iter_init(sc->sc_udev, &iter);
/* skip past the current interface descriptor */
iter.cur = (const uByte *)usbd_get_interface_descriptor(ifh);
desc = usb_desc_iter_next(&iter);
for (;;) {
desc = usb_desc_iter_next(&iter);
if (desc == NULL
|| desc->bDescriptorType == UDESC_INTERFACE) {
mux = 0;
break; /* not found */
}
if (desc->bDescriptorType == UDESC_CS_INTERFACE
&& desc->bLength == 3) {
mux = ((const uint8_t *)desc)[2];
break;
}
}
DPRINTF(1, "addr=%d, size=%zd, mux=0x%02x\n", addr, size, mux);
buf = kmem_alloc(size, KM_SLEEP);
status = usbd_open_pipe_intr(ifh, addr, USBD_SHORT_XFER_OK, &pipe,
sc, buf, size, uhso_mux_intr, USBD_DEFAULT_INTERVAL);
if (status != USBD_NORMAL_COMPLETION) {
aprint_error_dev(sc->sc_dev, "failed to open interrupt pipe: %s",
usbd_errstr(status));
kmem_free(buf, size);
return;
}
flags = 0;
for (i = 0; i < __arraycount(uhso_mux_port); i++) {
if (ISSET(mux, __BIT(i))) {
if (sc->sc_port[uhso_mux_port[i]] != NULL) {
aprint_error_dev(sc->sc_dev,
"mux port %d is duplicate!\n", i);
continue;
}
hp = kmem_zalloc(sizeof(struct uhso_port), KM_SLEEP);
sc->sc_port[uhso_mux_port[i]] = hp;
hp->hp_sc = sc;
hp->hp_index = i;
hp->hp_ipipe = pipe;
hp->hp_ibuf = buf;
hp->hp_isize = size;
hp->hp_flags = flags;
hp->hp_abort = uhso_mux_abort;
hp->hp_detach = uhso_mux_detach;
hp->hp_init = uhso_mux_init;
hp->hp_clean = uhso_mux_clean;
hp->hp_write = uhso_mux_write;
hp->hp_write_cb = uhso_tty_write_cb;
hp->hp_read = uhso_mux_read;
hp->hp_read_cb = uhso_tty_read_cb;
hp->hp_control = uhso_mux_control;
hp->hp_wsize = UHSO_MUX_WSIZE;
hp->hp_rsize = UHSO_MUX_RSIZE;
uhso_tty_attach(hp);
aprint_normal_dev(sc->sc_dev,
"%s (port %d) attached as mux tty\n",
uhso_port_name[uhso_mux_port[i]], uhso_mux_port[i]);
/*
* As the pipe handle is stored in each mux, mark
* secondary references so they don't get released
*/
flags = UHSO_PORT_MUXPIPE;
}
}
if (flags == 0) {
/* for whatever reasons, nothing was attached */
usbd_abort_pipe(pipe);
usbd_close_pipe(pipe);
kmem_free(buf, size);
}
}
Static int
uhso_mux_abort(struct uhso_port *hp)
{
struct uhso_softc *sc = hp->hp_sc;
DPRINTF(1, "hp=%p\n", hp);
if (!ISSET(hp->hp_flags, UHSO_PORT_MUXPIPE))
usbd_abort_pipe(hp->hp_ipipe);
usbd_abort_default_pipe(sc->sc_udev);
return (*hp->hp_clean)(hp);
}
Static int
uhso_mux_detach(struct uhso_port *hp)
{
DPRINTF(1, "hp=%p\n", hp);
if (!ISSET(hp->hp_flags, UHSO_PORT_MUXPIPE)) {
DPRINTF(1, "interrupt pipe closed\n");
usbd_abort_pipe(hp->hp_ipipe);
usbd_close_pipe(hp->hp_ipipe);
kmem_free(hp->hp_ibuf, hp->hp_isize);
}
uhso_tty_detach(hp);
kmem_free(hp, sizeof(struct uhso_port));
return 0;
}
Static int
uhso_mux_init(struct uhso_port *hp)
{
DPRINTF(1, "hp=%p\n", hp);
CLR(hp->hp_flags, UHSO_PORT_MUXBUSY | UHSO_PORT_MUXREADY);
SET(hp->hp_status, TIOCM_DSR | TIOCM_CAR);
return 0;
}
Static int
uhso_mux_clean(struct uhso_port *hp)
{
DPRINTF(1, "hp=%p\n", hp);
CLR(hp->hp_flags, UHSO_PORT_MUXREADY);
CLR(hp->hp_status, TIOCM_DTR | TIOCM_DSR | TIOCM_CAR);
return 0;
}
Static int
uhso_mux_write(struct uhso_port *hp)
{
struct uhso_softc *sc = hp->hp_sc;
usb_device_request_t req;
usbd_status status;
DPRINTF(5, "hp=%p, index=%d, wlen=%zd\n", hp, hp->hp_index, hp->hp_wlen);
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SEND_ENCAPSULATED_COMMAND;
USETW(req.wValue, 0);
USETW(req.wIndex, hp->hp_index);
USETW(req.wLength, hp->hp_wlen);
usbd_setup_default_xfer(hp->hp_wxfer, sc->sc_udev, hp, USBD_NO_TIMEOUT,
&req, hp->hp_wbuf, hp->hp_wlen, USBD_NO_COPY, hp->hp_write_cb);
status = usbd_transfer(hp->hp_wxfer);
if (status != USBD_IN_PROGRESS) {
DPRINTF(0, "non-normal status %s\n", usbd_errstr(status));
return EIO;
}
sc->sc_refcnt++;
return 0;
}
Static int
uhso_mux_read(struct uhso_port *hp)
{
struct uhso_softc *sc = hp->hp_sc;
usb_device_request_t req;
usbd_status status;
CLR(hp->hp_flags, UHSO_PORT_MUXBUSY);
if (hp->hp_rlen == 0 && !ISSET(hp->hp_flags, UHSO_PORT_MUXREADY))
return 0;
SET(hp->hp_flags, UHSO_PORT_MUXBUSY);
CLR(hp->hp_flags, UHSO_PORT_MUXREADY);
DPRINTF(5, "hp=%p, index=%d\n", hp, hp->hp_index);
req.bmRequestType = UT_READ_CLASS_INTERFACE;
req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE;
USETW(req.wValue, 0);
USETW(req.wIndex, hp->hp_index);
USETW(req.wLength, hp->hp_rsize);
usbd_setup_default_xfer(hp->hp_rxfer, sc->sc_udev, hp, USBD_NO_TIMEOUT,
&req, hp->hp_rbuf, hp->hp_rsize, USBD_NO_COPY | USBD_SHORT_XFER_OK,
hp->hp_read_cb);
status = usbd_transfer(hp->hp_rxfer);
if (status != USBD_IN_PROGRESS) {
DPRINTF(0, "non-normal status %s\n", usbd_errstr(status));
CLR(hp->hp_flags, UHSO_PORT_MUXBUSY);
return EIO;
}
sc->sc_refcnt++;
return 0;
}
Static int
uhso_mux_control(struct uhso_port *hp)
{
DPRINTF(1, "hp=%p\n", hp);
return 0;
}
Static void
uhso_mux_intr(usbd_xfer_handle xfer, usbd_private_handle p, usbd_status status)
{
struct uhso_softc *sc = p;
struct uhso_port *hp;
uint32_t cc;
uint8_t *buf;
unsigned int i;
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(0, "non-normal status %s\n", usbd_errstr(status));
return;
}
usbd_get_xfer_status(xfer, NULL, (void **)&buf, &cc, NULL);
if (cc == 0)
return;
DPRINTF(5, "mux mask 0x%02x, cc=%u\n", buf[0], cc);
for (i = 0; i < __arraycount(uhso_mux_port); i++) {
if (!ISSET(buf[0], __BIT(i)))
continue;
DPRINTF(5, "mux %d port %d\n", i, uhso_mux_port[i]);
hp = sc->sc_port[uhso_mux_port[i]];
if (hp == NULL
|| hp->hp_tp == NULL
|| !ISSET(hp->hp_status, TIOCM_DTR))
continue;
SET(hp->hp_flags, UHSO_PORT_MUXREADY);
if (ISSET(hp->hp_flags, UHSO_PORT_MUXBUSY))
continue;
uhso_mux_read(hp);
}
}
/******************************************************************************
*
* Bulk ports operate using the bulk endpoints on an interface, though
* the Modem port (at least) may have an interrupt endpoint that will pass
* CDC Notification messages with the modem status.
*/
Static void
uhso_bulk_attach(struct uhso_softc *sc, usbd_interface_handle ifh, int index)
{
usb_endpoint_descriptor_t *ed;
usb_interface_descriptor_t *id;
struct uhso_port *hp;
int in, out;
ed = uhso_get_endpoint(ifh, UE_BULK, UE_DIR_IN);
if (ed == NULL) {
aprint_error_dev(sc->sc_dev, "bulk-in endpoint not found\n");
return;
}
in = ed->bEndpointAddress;
ed = uhso_get_endpoint(ifh, UE_BULK, UE_DIR_OUT);
if (ed == NULL) {
aprint_error_dev(sc->sc_dev, "bulk-out endpoint not found\n");
return;
}
out = ed->bEndpointAddress;
id = usbd_get_interface_descriptor(ifh);
if (id == NULL) {
aprint_error_dev(sc->sc_dev, "interface descriptor not found\n");
return;
}
DPRINTF(1, "bulk endpoints in=%x, out=%x\n", in, out);
if (sc->sc_port[index] != NULL) {
aprint_error_dev(sc->sc_dev, "bulk port %d is duplicate!\n",
index);
return;
}
hp = kmem_zalloc(sizeof(struct uhso_port), KM_SLEEP);
sc->sc_port[index] = hp;
hp->hp_sc = sc;
hp->hp_ifh = ifh;
hp->hp_index = id->bInterfaceNumber;
hp->hp_raddr = in;
hp->hp_waddr = out;
hp->hp_abort = uhso_bulk_abort;
hp->hp_detach = uhso_bulk_detach;
hp->hp_init = uhso_bulk_init;
hp->hp_clean = uhso_bulk_clean;
hp->hp_write = uhso_bulk_write;
hp->hp_write_cb = uhso_tty_write_cb;
hp->hp_read = uhso_bulk_read;
hp->hp_read_cb = uhso_tty_read_cb;
hp->hp_control = uhso_bulk_control;
hp->hp_wsize = UHSO_BULK_WSIZE;
hp->hp_rsize = UHSO_BULK_RSIZE;
if (index == UHSO_PORT_MODEM) {
ed = uhso_get_endpoint(ifh, UE_INTERRUPT, UE_DIR_IN);
if (ed != NULL) {
hp->hp_iaddr = ed->bEndpointAddress;
hp->hp_isize = UGETW(ed->wMaxPacketSize);
}
}
uhso_tty_attach(hp);
aprint_normal_dev(sc->sc_dev,
"%s (port %d) attached as bulk tty\n",
uhso_port_name[index], index);
}
Static int
uhso_bulk_abort(struct uhso_port *hp)
{
DPRINTF(1, "hp=%p\n", hp);
return (*hp->hp_clean)(hp);
}
Static int
uhso_bulk_detach(struct uhso_port *hp)
{
DPRINTF(1, "hp=%p\n", hp);
uhso_tty_detach(hp);
kmem_free(hp, sizeof(struct uhso_port));
return 0;
}
Static int
uhso_bulk_init(struct uhso_port *hp)
{
usbd_status status;
DPRINTF(1, "hp=%p\n", hp);
if (hp->hp_isize > 0) {
hp->hp_ibuf = kmem_alloc(hp->hp_isize, KM_SLEEP);
status = usbd_open_pipe_intr(hp->hp_ifh, hp->hp_iaddr,
USBD_SHORT_XFER_OK, &hp->hp_ipipe, hp, hp->hp_ibuf,
hp->hp_isize, uhso_bulk_intr, USBD_DEFAULT_INTERVAL);
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(0, "interrupt pipe open failed: %s\n",
usbd_errstr(status));
return EIO;
}
}
status = usbd_open_pipe(hp->hp_ifh, hp->hp_raddr, 0, &hp->hp_rpipe);
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(0, "read pipe open failed: %s\n", usbd_errstr(status));
return EIO;
}
status = usbd_open_pipe(hp->hp_ifh, hp->hp_waddr, 0, &hp->hp_wpipe);
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(0, "write pipe open failed: %s\n", usbd_errstr(status));
return EIO;
}
return 0;
}
Static int
uhso_bulk_clean(struct uhso_port *hp)
{
DPRINTF(1, "hp=%p\n", hp);
if (hp->hp_ipipe != NULL) {
usbd_abort_pipe(hp->hp_ipipe);
usbd_close_pipe(hp->hp_ipipe);
hp->hp_ipipe = NULL;
}
if (hp->hp_ibuf != NULL) {
kmem_free(hp->hp_ibuf, hp->hp_isize);
hp->hp_ibuf = NULL;
}
if (hp->hp_rpipe != NULL) {
usbd_abort_pipe(hp->hp_rpipe);
usbd_close_pipe(hp->hp_rpipe);
hp->hp_rpipe = NULL;
}
if (hp->hp_wpipe != NULL) {
usbd_abort_pipe(hp->hp_wpipe);
usbd_close_pipe(hp->hp_wpipe);
hp->hp_wpipe = NULL;
}
return 0;
}
Static int
uhso_bulk_write(struct uhso_port *hp)
{
struct uhso_softc *sc = hp->hp_sc;
usbd_status status;
DPRINTF(5, "hp=%p, wlen=%zd\n", hp, hp->hp_wlen);
usbd_setup_xfer(hp->hp_wxfer, hp->hp_wpipe, hp, hp->hp_wbuf,
hp->hp_wlen, USBD_NO_COPY, USBD_NO_TIMEOUT, hp->hp_write_cb);
status = usbd_transfer(hp->hp_wxfer);
if (status != USBD_IN_PROGRESS) {
DPRINTF(0, "non-normal status %s\n", usbd_errstr(status));
return EIO;
}
sc->sc_refcnt++;
return 0;
}
Static int
uhso_bulk_read(struct uhso_port *hp)
{
struct uhso_softc *sc = hp->hp_sc;
usbd_status status;
DPRINTF(5, "hp=%p\n", hp);
usbd_setup_xfer(hp->hp_rxfer, hp->hp_rpipe, hp, hp->hp_rbuf,
hp->hp_rsize, USBD_NO_COPY | USBD_SHORT_XFER_OK,
USBD_NO_TIMEOUT, hp->hp_read_cb);
status = usbd_transfer(hp->hp_rxfer);
if (status != USBD_IN_PROGRESS) {
DPRINTF(0, "non-normal status %s\n", usbd_errstr(status));
return EIO;
}
sc->sc_refcnt++;
return 0;
}
Static int
uhso_bulk_control(struct uhso_port *hp)
{
struct uhso_softc *sc = hp->hp_sc;
usb_device_request_t req;
usbd_status status;
int val;
DPRINTF(1, "hp=%p\n", hp);
if (hp->hp_isize == 0)
return 0;
val = 0;
if (ISSET(hp->hp_status, TIOCM_DTR))
SET(val, UCDC_LINE_DTR);
if (ISSET(hp->hp_status, TIOCM_RTS))
SET(val, UCDC_LINE_RTS);
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
USETW(req.wValue, val);
USETW(req.wIndex, hp->hp_index);
USETW(req.wLength, 0);
sc->sc_refcnt++;
status = usbd_do_request(sc->sc_udev, &req, NULL);
if (--sc->sc_refcnt < 0)
usb_detach_wakeupold(sc->sc_dev);
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(0, "non-normal status %s\n", usbd_errstr(status));
return EIO;
}
return 0;
}
Static void
uhso_bulk_intr(usbd_xfer_handle xfer, usbd_private_handle p, usbd_status status)
{
struct uhso_port *hp = p;
struct tty *tp = hp->hp_tp;
usb_cdc_notification_t *msg;
uint32_t cc;
int s, old;
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(0, "non-normal status %s\n", usbd_errstr(status));
return;
}
usbd_get_xfer_status(xfer, NULL, (void **)&msg, &cc, NULL);
if (cc < UCDC_NOTIFICATION_LENGTH
|| msg->bmRequestType != UCDC_NOTIFICATION
|| msg->bNotification != UCDC_N_SERIAL_STATE
|| UGETW(msg->wValue) != 0
|| UGETW(msg->wIndex) != hp->hp_index
|| UGETW(msg->wLength) < 1)
return;
DPRINTF(5, "state=%02x\n", msg->data[0]);
old = hp->hp_status;
CLR(hp->hp_status, TIOCM_RNG | TIOCM_DSR | TIOCM_CAR);
if (ISSET(msg->data[0], UCDC_N_SERIAL_RI))
SET(hp->hp_status, TIOCM_RNG);
if (ISSET(msg->data[0], UCDC_N_SERIAL_DSR))
SET(hp->hp_status, TIOCM_DSR);
if (ISSET(msg->data[0], UCDC_N_SERIAL_DCD))
SET(hp->hp_status, TIOCM_CAR);
if (ISSET(hp->hp_status ^ old, TIOCM_CAR)) {
s = spltty();
tp->t_linesw->l_modem(tp, ISSET(hp->hp_status, TIOCM_CAR));
splx(s);
}
if (ISSET((hp->hp_status ^ old), TIOCM_RNG | TIOCM_DSR | TIOCM_CAR))
DPRINTF(1, "RNG %s, DSR %s, DCD %s\n",
(ISSET(hp->hp_status, TIOCM_RNG) ? "on" : "off"),
(ISSET(hp->hp_status, TIOCM_DSR) ? "on" : "off"),
(ISSET(hp->hp_status, TIOCM_CAR) ? "on" : "off"));
}
/******************************************************************************
*
* TTY management
*
*/
Static void
uhso_tty_attach(struct uhso_port *hp)
{
struct tty *tp;
tp = tty_alloc();
tp->t_oproc = uhso_tty_start;
tp->t_param = uhso_tty_param;
hp->hp_tp = tp;
tty_attach(tp);
DPRINTF(1, "hp=%p, tp=%p\n", hp, tp);
}
Static void
uhso_tty_detach(struct uhso_port *hp)
{
DPRINTF(1, "hp=%p\n", hp);
uhso_tty_clean(hp);
tty_detach(hp->hp_tp);
tty_free(hp->hp_tp);
hp->hp_tp = NULL;
}
Static void
uhso_tty_write_cb(usbd_xfer_handle xfer, usbd_private_handle p, usbd_status status)
{
struct uhso_port *hp = p;
struct uhso_softc *sc = hp->hp_sc;
struct tty *tp = hp->hp_tp;
uint32_t cc;
int s;
if (--sc->sc_refcnt < 0)
usb_detach_wakeupold(sc->sc_dev);
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(0, "non-normal status %s\n", usbd_errstr(status));
if (status == USBD_STALLED && hp->hp_wpipe != NULL)
usbd_clear_endpoint_stall_async(hp->hp_wpipe);
else
return;
} else {
usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL);
DPRINTF(5, "wrote %d bytes (of %zd)\n", cc, hp->hp_wlen);
if (cc != hp->hp_wlen)
DPRINTF(0, "cc=%u, wlen=%zd\n", cc, hp->hp_wlen);
}
s = spltty();
CLR(tp->t_state, TS_BUSY);
tp->t_linesw->l_start(tp);
splx(s);
}
Static void
uhso_tty_read_cb(usbd_xfer_handle xfer, usbd_private_handle p, usbd_status status)
{
struct uhso_port *hp = p;
struct uhso_softc *sc = hp->hp_sc;
struct tty *tp = hp->hp_tp;
uint8_t *cp;
uint32_t cc;
int s;
if (--sc->sc_refcnt < 0)
usb_detach_wakeupold(sc->sc_dev);
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(0, "non-normal status: %s\n", usbd_errstr(status));
if (status == USBD_STALLED && hp->hp_rpipe != NULL)
usbd_clear_endpoint_stall_async(hp->hp_rpipe);
else
return;
hp->hp_rlen = 0;
} else {
usbd_get_xfer_status(xfer, NULL, (void **)&cp, &cc, NULL);
hp->hp_rlen = cc;
DPRINTF(5, "read %d bytes\n", cc);
s = spltty();
while (cc > 0) {
if (tp->t_linesw->l_rint(*cp++, tp) == -1) {
DPRINTF(0, "lost %d bytes\n", cc);
break;
}
cc--;
}
splx(s);
}
(*hp->hp_read)(hp);
}
/******************************************************************************
*
* TTY subsystem
*
*/
int
uhso_tty_open(dev_t dev, int flag, int mode, struct lwp *l)
{
struct uhso_softc *sc;
struct uhso_port *hp;
struct tty *tp;
int error, s;
DPRINTF(1, "unit %d port %d\n", UHSOUNIT(dev), UHSOPORT(dev));
sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev));
if (sc == NULL
|| !device_is_active(sc->sc_dev)
|| UHSOPORT(dev) >= UHSO_PORT_MAX)
return ENXIO;
hp = sc->sc_port[UHSOPORT(dev)];
if (hp == NULL || hp->hp_tp == NULL)
return ENXIO;
tp = hp->hp_tp;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return EBUSY;
error = 0;
s = spltty();
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
tp->t_dev = dev;
error = uhso_tty_init(hp);
}
splx(s);
if (error == 0) {
error = ttyopen(tp, UHSODIALOUT(dev), ISSET(flag, O_NONBLOCK));
if (error == 0) {
error = tp->t_linesw->l_open(dev, tp);
}
}
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0)
uhso_tty_clean(hp);
DPRINTF(1, "sc=%p, hp=%p, tp=%p, error=%d\n", sc, hp, tp, error);
return error;
}
Static int
uhso_tty_init(struct uhso_port *hp)
{
struct uhso_softc *sc = hp->hp_sc;
struct tty *tp = hp->hp_tp;
struct termios t;
int error;
DPRINTF(1, "sc=%p, hp=%p, tp=%p\n", sc, hp, tp);
/*
* 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;
if (ISSET(hp->hp_swflags, TIOCFLAG_CLOCAL))
SET(t.c_cflag, CLOCAL);
if (ISSET(hp->hp_swflags, TIOCFLAG_CRTSCTS))
SET(t.c_cflag, CRTSCTS);
if (ISSET(hp->hp_swflags, TIOCFLAG_MDMBUF))
SET(t.c_cflag, MDMBUF);
/* Ensure uhso_tty_param() will do something. */
tp->t_ospeed = 0;
(void)uhso_tty_param(tp, &t);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_lflag = TTYDEF_LFLAG;
ttychars(tp);
ttsetwater(tp);
hp->hp_status = 0;
error = (*hp->hp_init)(hp);
if (error != 0)
return error;
hp->hp_rxfer = usbd_alloc_xfer(sc->sc_udev);
if (hp->hp_rxfer == NULL)
return ENOMEM;
hp->hp_rbuf = usbd_alloc_buffer(hp->hp_rxfer, hp->hp_rsize);
if (hp->hp_rbuf == NULL)
return ENOMEM;
hp->hp_wxfer = usbd_alloc_xfer(sc->sc_udev);
if (hp->hp_wxfer == NULL)
return ENOMEM;
hp->hp_wbuf = usbd_alloc_buffer(hp->hp_wxfer, hp->hp_wsize);
if (hp->hp_wbuf == NULL)
return ENOMEM;
/*
* 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 port is open
* unless explicitly requested to deassert it. Ditto RTS.
*/
uhso_tty_control(hp, TIOCMBIS, TIOCM_DTR | TIOCM_RTS);
/* and start reading */
error = (*hp->hp_read)(hp);
if (error != 0)
return error;
return 0;
}
int
uhso_tty_close(dev_t dev, int flag, int mode, struct lwp *l)
{
struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev));
struct uhso_port *hp = sc->sc_port[UHSOPORT(dev)];
struct tty *tp = hp->hp_tp;
if (!ISSET(tp->t_state, TS_ISOPEN))
return 0;
DPRINTF(1, "sc=%p, hp=%p, tp=%p\n", sc, hp, tp);
sc->sc_refcnt++;
tp->t_linesw->l_close(tp, flag);
ttyclose(tp);
if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0)
uhso_tty_clean(hp);
if (--sc->sc_refcnt < 0)
usb_detach_wakeupold(sc->sc_dev);
return 0;
}
Static void
uhso_tty_clean(struct uhso_port *hp)
{
DPRINTF(1, "hp=%p\n", hp);
if (ISSET(hp->hp_status, TIOCM_DTR)
&& ISSET(hp->hp_tp->t_cflag, HUPCL))
uhso_tty_control(hp, TIOCMBIC, TIOCM_DTR);
(*hp->hp_clean)(hp);
if (hp->hp_rxfer != NULL) {
usbd_free_xfer(hp->hp_rxfer);
hp->hp_rxfer = NULL;
hp->hp_rbuf = NULL;
}
if (hp->hp_wxfer != NULL) {
usbd_free_xfer(hp->hp_wxfer);
hp->hp_wxfer = NULL;
hp->hp_wbuf = NULL;
}
}
int
uhso_tty_read(dev_t dev, struct uio *uio, int flag)
{
struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev));
struct uhso_port *hp = sc->sc_port[UHSOPORT(dev)];
struct tty *tp = hp->hp_tp;
int error;
if (!device_is_active(sc->sc_dev))
return EIO;
DPRINTF(5, "sc=%p, hp=%p, tp=%p\n", sc, hp, tp);
sc->sc_refcnt++;
error = tp->t_linesw->l_read(tp, uio, flag);
if (--sc->sc_refcnt < 0)
usb_detach_wakeupold(sc->sc_dev);
return error;
}
int
uhso_tty_write(dev_t dev, struct uio *uio, int flag)
{
struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev));
struct uhso_port *hp = sc->sc_port[UHSOPORT(dev)];
struct tty *tp = hp->hp_tp;
int error;
if (!device_is_active(sc->sc_dev))
return EIO;
DPRINTF(5, "sc=%p, hp=%p, tp=%p\n", sc, hp, tp);
sc->sc_refcnt++;
error = tp->t_linesw->l_write(tp, uio, flag);
if (--sc->sc_refcnt < 0)
usb_detach_wakeupold(sc->sc_dev);
return error;
}
int
uhso_tty_ioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
{
struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev));
struct uhso_port *hp = sc->sc_port[UHSOPORT(dev)];
int error;
if (!device_is_active(sc->sc_dev))
return EIO;
DPRINTF(1, "sc=%p, hp=%p\n", sc, hp);
sc->sc_refcnt++;
error = uhso_tty_do_ioctl(hp, cmd, data, flag, l);
if (--sc->sc_refcnt < 0)
usb_detach_wakeupold(sc->sc_dev);
return error;
}
Static int
uhso_tty_do_ioctl(struct uhso_port *hp, u_long cmd, void *data, int flag,
struct lwp *l)
{
struct tty *tp = hp->hp_tp;
int error, s;
error = tp->t_linesw->l_ioctl(tp, cmd, data, flag, l);
if (error != EPASSTHROUGH)
return error;
error = ttioctl(tp, cmd, data, flag, l);
if (error != EPASSTHROUGH)
return error;
error = 0;
s = spltty();
switch (cmd) {
case TIOCSDTR:
error = uhso_tty_control(hp, TIOCMBIS, TIOCM_DTR);
break;
case TIOCCDTR:
error = uhso_tty_control(hp, TIOCMBIC, TIOCM_DTR);
break;
case TIOCGFLAGS:
*(int *)data = hp->hp_swflags;
break;
case TIOCSFLAGS:
error = kauth_authorize_device_tty(l->l_cred,
KAUTH_DEVICE_TTY_PRIVSET, tp);
if (error)
break;
hp->hp_swflags = *(int *)data;
break;
case TIOCMSET:
case TIOCMBIS:
case TIOCMBIC:
error = uhso_tty_control(hp, cmd, *(int *)data);
break;
case TIOCMGET:
*(int *)data = hp->hp_status;
break;
default:
error = EPASSTHROUGH;
break;
}
splx(s);
return error;
}
/* this is called with tty_lock held */
void
uhso_tty_stop(struct tty *tp, int flag)
{
#if 0
struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(tp->t_dev));
struct uhso_port *hp = sc->sc_port[UHSOPORT(tp->t_dev)];
#endif
}
struct tty *
uhso_tty_tty(dev_t dev)
{
struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev));
struct uhso_port *hp = sc->sc_port[UHSOPORT(dev)];
return hp->hp_tp;
}
int
uhso_tty_poll(dev_t dev, int events, struct lwp *l)
{
struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(dev));
struct uhso_port *hp = sc->sc_port[UHSOPORT(dev)];
struct tty *tp = hp->hp_tp;
int revents;
if (!device_is_active(sc->sc_dev))
return POLLHUP;
sc->sc_refcnt++;
revents = tp->t_linesw->l_poll(tp, events, l);
if (--sc->sc_refcnt < 0)
usb_detach_wakeupold(sc->sc_dev);
return revents;
}
Static int
uhso_tty_param(struct tty *tp, struct termios *t)
{
struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(tp->t_dev));
struct uhso_port *hp = sc->sc_port[UHSOPORT(tp->t_dev)];
if (!device_is_active(sc->sc_dev))
return EIO;
DPRINTF(1, "hp=%p, tp=%p, termios iflag=%x, oflag=%x, cflag=%x\n",
hp, tp, t->c_iflag, t->c_oflag, t->c_cflag);
/* Check requested parameters. */
if (t->c_ispeed != 0
&& t->c_ispeed != t->c_ospeed)
return EINVAL;
/* force CLOCAL and !HUPCL for console */
if (ISSET(hp->hp_swflags, TIOCFLAG_SOFTCAR)) {
SET(t->c_cflag, CLOCAL);
CLR(t->c_cflag, HUPCL);
}
/* If there were no changes, don't do anything. */
if (tp->t_ospeed == t->c_ospeed
&& tp->t_cflag == t->c_cflag)
return 0;
tp->t_ispeed = 0;
tp->t_ospeed = t->c_ospeed;
tp->t_cflag = t->c_cflag;
/* update tty layers idea of carrier bit */
tp->t_linesw->l_modem(tp, ISSET(hp->hp_status, TIOCM_CAR));
return 0;
}
/* this is called with tty_lock held */
Static void
uhso_tty_start(struct tty *tp)
{
struct uhso_softc *sc = device_lookup_private(&uhso_cd, UHSOUNIT(tp->t_dev));
struct uhso_port *hp = sc->sc_port[UHSOPORT(tp->t_dev)];
int s;
if (!device_is_active(sc->sc_dev))
return;
s = spltty();
if (!ISSET(tp->t_state, TS_BUSY | TS_TIMEOUT | TS_TTSTOP)
&& ttypull(tp) != 0) {
hp->hp_wlen = q_to_b(&tp->t_outq, hp->hp_wbuf, hp->hp_wsize);
if (hp->hp_wlen > 0) {
SET(tp->t_state, TS_BUSY);
(*hp->hp_write)(hp);
}
}
splx(s);
}
Static int
uhso_tty_control(struct uhso_port *hp, u_long cmd, int bits)
{
bits &= (TIOCM_DTR | TIOCM_RTS);
DPRINTF(1, "cmd %s, DTR=%d, RTS=%d\n",
(cmd == TIOCMBIC ? "BIC" : (cmd == TIOCMBIS ? "BIS" : "SET")),
(bits & TIOCM_DTR) ? 1 : 0,
(bits & TIOCM_RTS) ? 1 : 0);
switch (cmd) {
case TIOCMBIC:
CLR(hp->hp_status, bits);
break;
case TIOCMBIS:
SET(hp->hp_status, bits);
break;
case TIOCMSET:
CLR(hp->hp_status, TIOCM_DTR | TIOCM_RTS);
SET(hp->hp_status, bits);
break;
}
return (*hp->hp_control)(hp);
}
/******************************************************************************
*
* Network Interface
*
*/
Static void
uhso_ifnet_attach(struct uhso_softc *sc, usbd_interface_handle ifh, int index)
{
usb_endpoint_descriptor_t *ed;
struct uhso_port *hp;
struct ifnet *ifp;
int in, out;
ed = uhso_get_endpoint(ifh, UE_BULK, UE_DIR_IN);
if (ed == NULL) {
aprint_error_dev(sc->sc_dev,
"could not find bulk-in endpoint\n");
return;
}
in = ed->bEndpointAddress;
ed = uhso_get_endpoint(ifh, UE_BULK, UE_DIR_OUT);
if (ed == NULL) {
aprint_error_dev(sc->sc_dev,
"could not find bulk-out endpoint\n");
return;
}
out = ed->bEndpointAddress;
DPRINTF(1, "in=%d, out=%d\n", in, out);
if (sc->sc_port[index] != NULL) {
aprint_error_dev(sc->sc_dev,
"ifnet port %d is duplicate!\n", index);
return;
}
hp = kmem_zalloc(sizeof(struct uhso_port), KM_SLEEP);
sc->sc_port[index] = hp;
ifp = if_alloc(IFT_IP);
strlcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ);
ifp->if_softc = hp;
ifp->if_mtu = UHSO_IFNET_MTU;
ifp->if_dlt = DLT_RAW;
ifp->if_type = IFT_IP;
ifp->if_flags = IFF_NOARP | IFF_SIMPLEX;
ifp->if_ioctl = uhso_ifnet_ioctl;
ifp->if_start = uhso_ifnet_start;
ifp->if_output = uhso_ifnet_output;
IFQ_SET_READY(&ifp->if_snd);
hp->hp_sc = sc;
hp->hp_ifp = ifp;
hp->hp_ifh = ifh;
hp->hp_raddr = in;
hp->hp_waddr = out;
hp->hp_abort = uhso_ifnet_abort;
hp->hp_detach = uhso_ifnet_detach;
hp->hp_init = uhso_bulk_init;
hp->hp_clean = uhso_bulk_clean;
hp->hp_write = uhso_bulk_write;
hp->hp_write_cb = uhso_ifnet_write_cb;
hp->hp_read = uhso_bulk_read;
hp->hp_read_cb = uhso_ifnet_read_cb;
hp->hp_wsize = MCLBYTES;
hp->hp_rsize = MCLBYTES;
if_attach(ifp);
if_alloc_sadl(ifp);
bpf_attach(ifp, DLT_RAW, 0);
aprint_normal_dev(sc->sc_dev, "%s (port %d) attached as ifnet\n",
uhso_port_name[index], index);
}
Static int
uhso_ifnet_abort(struct uhso_port *hp)
{
struct ifnet *ifp = hp->hp_ifp;
/* All ifnet IO will abort when IFF_RUNNING is not set */
CLR(ifp->if_flags, IFF_RUNNING);
return (*hp->hp_clean)(hp);
}
Static int
uhso_ifnet_detach(struct uhso_port *hp)
{
struct ifnet *ifp = hp->hp_ifp;
int s;
s = splnet();
bpf_detach(ifp);
if_detach(ifp);
splx(s);
kmem_free(hp, sizeof(struct uhso_port));
return 0;
}
Static void
uhso_ifnet_write_cb(usbd_xfer_handle xfer, usbd_private_handle p, usbd_status status)
{
struct uhso_port *hp = p;
struct uhso_softc *sc= hp->hp_sc;
struct ifnet *ifp = hp->hp_ifp;
uint32_t cc;
int s;
if (--sc->sc_refcnt < 0)
usb_detach_wakeupold(sc->sc_dev);
if (!ISSET(ifp->if_flags, IFF_RUNNING))
return;
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(0, "non-normal status %s\n", usbd_errstr(status));
if (status == USBD_STALLED && hp->hp_wpipe != NULL)
usbd_clear_endpoint_stall_async(hp->hp_wpipe);
else
return;
ifp->if_oerrors++;
} else {
usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL);
DPRINTF(5, "wrote %d bytes (of %zd)\n", cc, hp->hp_wlen);
if (cc != hp->hp_wlen)
DPRINTF(0, "cc=%u, wlen=%zd\n", cc, hp->hp_wlen);
ifp->if_opackets++;
}
s = splnet();
CLR(ifp->if_flags, IFF_OACTIVE);
ifp->if_start(ifp);
splx(s);
}
Static void
uhso_ifnet_read_cb(usbd_xfer_handle xfer, usbd_private_handle p,
usbd_status status)
{
struct uhso_port *hp = p;
struct uhso_softc *sc= hp->hp_sc;
struct ifnet *ifp = hp->hp_ifp;
void *cp;
uint32_t cc;
if (--sc->sc_refcnt < 0)
usb_detach_wakeupold(sc->sc_dev);
if (!ISSET(ifp->if_flags, IFF_RUNNING))
return;
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(0, "non-normal status: %s\n", usbd_errstr(status));
if (status == USBD_STALLED && hp->hp_rpipe != NULL)
usbd_clear_endpoint_stall_async(hp->hp_rpipe);
else
return;
ifp->if_ierrors++;
hp->hp_rlen = 0;
} else {
usbd_get_xfer_status(xfer, NULL, (void **)&cp, &cc, NULL);
hp->hp_rlen = cc;
DPRINTF(5, "read %d bytes\n", cc);
uhso_ifnet_input(ifp, &hp->hp_mbuf, cp, cc);
}
(*hp->hp_read)(hp);
}
Static void
uhso_ifnet_input(struct ifnet *ifp, struct mbuf **mb, uint8_t *cp, size_t cc)
{
struct mbuf *m;
size_t got, len, want;
int s;
/*
* Several IP packets might be in the same buffer, we need to
* separate them before handing it to the ip-stack. We might
* also receive partial packets which we need to defer until
* we get more data.
*/
while (cc > 0) {
if (*mb == NULL) {
MGETHDR(m, M_DONTWAIT, MT_DATA);
if (m == NULL) {
aprint_error_ifnet(ifp, "no mbufs\n");
ifp->if_ierrors++;
break;
}
MCLGET(m, M_DONTWAIT);
if (!ISSET(m->m_flags, M_EXT)) {
aprint_error_ifnet(ifp, "no mbuf clusters\n");
ifp->if_ierrors++;
m_freem(m);
break;
}
got = 0;
} else {
m = *mb;
*mb = NULL;
got = m->m_pkthdr.len;
}
/* make sure that the incoming packet is ok */
if (got == 0)
mtod(m, uint8_t *)[0] = cp[0];
want = mtod(m, struct ip *)->ip_hl << 2;
if (mtod(m, struct ip *)->ip_v != 4
|| want != sizeof(struct ip)) {
aprint_error_ifnet(ifp, "bad IP header (v=%d, hl=%zd)\n",
mtod(m, struct ip *)->ip_v, want);
ifp->if_ierrors++;
m_freem(m);
break;
}
/* ensure we have the IP header.. */
if (got < want) {
len = MIN(want - got, cc);
memcpy(mtod(m, uint8_t *) + got, cp, len);
got += len;
cc -= len;
cp += len;
if (got < want) {
DPRINTF(5, "waiting for IP header "
"(got %zd want %zd)\n", got, want);
m->m_pkthdr.len = got;
*mb = m;
break;
}
}
/* ..and the packet body */
want = ntohs(mtod(m, struct ip *)->ip_len);
if (got < want) {
len = MIN(want - got, cc);
memcpy(mtod(m, uint8_t *) + got, cp, len);
got += len;
cc -= len;
cp += len;
if (got < want) {
DPRINTF(5, "waiting for IP packet "
"(got %zd want %zd)\n", got, want);
m->m_pkthdr.len = got;
*mb = m;
break;
}
} else if (want > got) {
aprint_error_ifnet(ifp, "bad IP packet (len=%zd)\n",
want);
ifp->if_ierrors++;
m_freem(m);
break;
}
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = m->m_len = got;
s = splnet();
bpf_mtap(ifp, m);
ifp->if_ipackets++;
ifp->if_ibytes += m->m_pkthdr.len;
if (IF_QFULL(&ipintrq)) {
IF_DROP(&ipintrq);
m_freem(m);
} else {
IF_ENQUEUE(&ipintrq, m);
schednetisr(NETISR_IP);
}
splx(s);
}
}
Static int
uhso_ifnet_ioctl(struct ifnet *ifp, u_long cmd, void *data)
{
struct uhso_port *hp = ifp->if_softc;
int error, s;
s = splnet();
switch (cmd) {
case SIOCINITIFADDR:
switch (((struct ifaddr *)data)->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
if (!ISSET(ifp->if_flags, IFF_RUNNING)) {
SET(ifp->if_flags, IFF_UP);
error = uhso_ifnet_init(hp);
if (error != 0) {
uhso_ifnet_clean(hp);
break;
}
SET(ifp->if_flags, IFF_RUNNING);
DPRINTF(1, "hp=%p, ifp=%p INITIFADDR\n", hp, ifp);
break;
}
error = 0;
break;
#endif
default:
error = EAFNOSUPPORT;
break;
}
break;
case SIOCSIFMTU:
if (((struct ifreq *)data)->ifr_mtu > hp->hp_wsize) {
error = EINVAL;
break;
}
error = ifioctl_common(ifp, cmd, data);
if (error == ENETRESET)
error = 0;
break;
case SIOCSIFFLAGS:
error = ifioctl_common(ifp, cmd, data);
if (error != 0)
break;
switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) {
case IFF_UP:
error = uhso_ifnet_init(hp);
if (error != 0) {
uhso_ifnet_clean(hp);
break;
}
SET(ifp->if_flags, IFF_RUNNING);
DPRINTF(1, "hp=%p, ifp=%p RUNNING\n", hp, ifp);
break;
case IFF_RUNNING:
uhso_ifnet_clean(hp);
CLR(ifp->if_flags, IFF_RUNNING);
DPRINTF(1, "hp=%p, ifp=%p STOPPED\n", hp, ifp);
break;
default:
break;
}
break;
default:
error = ifioctl_common(ifp, cmd, data);
break;
}
splx(s);
return error;
}
/* is only called if IFF_RUNNING not set */
Static int
uhso_ifnet_init(struct uhso_port *hp)
{
struct uhso_softc *sc = hp->hp_sc;
int error;
DPRINTF(1, "sc=%p, hp=%p\n", sc, hp);
if (!device_is_active(sc->sc_dev))
return EIO;
error = (*hp->hp_init)(hp);
if (error != 0)
return error;
hp->hp_rxfer = usbd_alloc_xfer(sc->sc_udev);
if (hp->hp_rxfer == NULL)
return ENOMEM;
hp->hp_rbuf = usbd_alloc_buffer(hp->hp_rxfer, hp->hp_rsize);
if (hp->hp_rbuf == NULL)
return ENOMEM;
hp->hp_wxfer = usbd_alloc_xfer(sc->sc_udev);
if (hp->hp_wxfer == NULL)
return ENOMEM;
hp->hp_wbuf = usbd_alloc_buffer(hp->hp_wxfer, hp->hp_wsize);
if (hp->hp_wbuf == NULL)
return ENOMEM;
error = (*hp->hp_read)(hp);
if (error != 0)
return error;
return 0;
}
Static void
uhso_ifnet_clean(struct uhso_port *hp)
{
DPRINTF(1, "hp=%p\n", hp);
(*hp->hp_clean)(hp);
if (hp->hp_rxfer != NULL) {
usbd_free_xfer(hp->hp_rxfer);
hp->hp_rxfer = NULL;
hp->hp_rbuf = NULL;
}
if (hp->hp_wxfer != NULL) {
usbd_free_xfer(hp->hp_wxfer);
hp->hp_wxfer = NULL;
hp->hp_wbuf = NULL;
}
}
/* called at splnet() with IFF_OACTIVE not set */
Static void
uhso_ifnet_start(struct ifnet *ifp)
{
struct uhso_port *hp = ifp->if_softc;
struct mbuf *m;
KASSERT(!ISSET(ifp->if_flags, IFF_OACTIVE));
if (!ISSET(ifp->if_flags, IFF_RUNNING))
return;
if (IFQ_IS_EMPTY(&ifp->if_snd)) {
DPRINTF(5, "finished sending\n");
return;
}
SET(ifp->if_flags, IFF_OACTIVE);
IFQ_DEQUEUE(&ifp->if_snd, m);
hp->hp_wlen = m->m_pkthdr.len;
if (hp->hp_wlen > hp->hp_wsize) {
aprint_error_ifnet(ifp,
"packet too long (%zd > %zd), truncating\n",
hp->hp_wlen, hp->hp_wsize);
hp->hp_wlen = hp->hp_wsize;
}
bpf_mtap(ifp, m);
m_copydata(m, 0, hp->hp_wlen, hp->hp_wbuf);
m_freem(m);
if ((*hp->hp_write)(hp) != 0) {
ifp->if_oerrors++;
CLR(ifp->if_flags, IFF_OACTIVE);
}
}
Static int
uhso_ifnet_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst,
struct rtentry *rt0)
{
ALTQ_DECL(struct altq_pktattr pktattr);
int error;
if (!ISSET(ifp->if_flags, IFF_RUNNING))
return EIO;
IFQ_CLASSIFY(&ifp->if_snd, m, dst->sa_family, &pktattr);
switch (dst->sa_family) {
#ifdef INET
case AF_INET:
error = ifq_enqueue(ifp, m ALTQ_COMMA ALTQ_DECL(&pktattr));
break;
#endif
default:
DPRINTF(0, "unsupported address family %d\n", dst->sa_family);
error = EAFNOSUPPORT;
m_freem(m);
break;
}
return error;
}
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