---
freebsd/sys/dev/usb/controller/dwc_otg_fdt.c | 4 +
freebsd/sys/dev/usb/net/if_cdce.c | 1583 ++++++++++++++++
freebsd/sys/dev/usb/net/if_cdcereg.h | 105 ++
freebsd/sys/dev/usb/net/if_smsc.c | 1886 ++++++++++++++++++++
freebsd/sys/dev/usb/net/if_smscreg.h | 278 +++
freebsd/sys/dev/usb/net/usb_ethernet.c | 659 +++++++
freebsd/sys/dev/usb/net/usb_ethernet.h | 127 ++
freebsd/sys/dev/usb/usb_busdma.c | 4 +-
freebsd/sys/sys/sysctl.h | 1 +
libbsd.py | 8 +-
libbsd_waf.py | 2 +
rtemsbsd/include/bsp/nexus-devices.h | 17 +-
.../include/rtems/bsd/test/network-config.h.in | 2 +
13 files changed, 4669 insertions(+), 7 deletions(-)
create mode 100644 freebsd/sys/dev/usb/net/if_cdce.c
create mode 100644 freebsd/sys/dev/usb/net/if_cdcereg.h
create mode 100644 freebsd/sys/dev/usb/net/if_smsc.c
create mode 100644 freebsd/sys/dev/usb/net/if_smscreg.h
create mode 100644 freebsd/sys/dev/usb/net/usb_ethernet.c
create mode 100644 freebsd/sys/dev/usb/net/usb_ethernet.h
diff --git a/freebsd/sys/dev/usb/controller/dwc_otg_fdt.c
b/freebsd/sys/dev/usb/controller/dwc_otg_fdt.c
index b06fa0a..598187b 100644
--- a/freebsd/sys/dev/usb/controller/dwc_otg_fdt.c
+++ b/freebsd/sys/dev/usb/controller/dwc_otg_fdt.c
@@ -224,5 +224,9 @@ driver_t dwc_otg_driver = {
static devclass_t dwc_otg_devclass;
+#ifndef __rtems__
DRIVER_MODULE(dwcotg, simplebus, dwc_otg_driver, dwc_otg_devclass, 0, 0);
+#else /* __rtems__ */
+DRIVER_MODULE(dwcotg, nexus, dwc_otg_driver, dwc_otg_devclass, 0, 0);
+#endif /* __rtems__ */
MODULE_DEPEND(dwcotg, usb, 1, 1, 1);
diff --git a/freebsd/sys/dev/usb/net/if_cdce.c
b/freebsd/sys/dev/usb/net/if_cdce.c
new file mode 100644
index 0000000..ecab60e
--- /dev/null
+++ b/freebsd/sys/dev/usb/net/if_cdce.c
@@ -0,0 +1,1583 @@
+#include <machine/rtems-bsd-kernel-space.h>
+
+/* $NetBSD: if_cdce.c,v 1.4 2004/10/24 12:50:54 augustss Exp $ */
+
+/*-
+ * Copyright (c) 1997, 1998, 1999, 2000-2003 Bill Paul <wp...@windriver.com>
+ * Copyright (c) 2003-2005 Craig Boston
+ * Copyright (c) 2004 Daniel Hartmeier
+ * Copyright (c) 2009 Hans Petter Selasky
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Bill Paul.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul, THE VOICES IN HIS HEAD OR
+ * THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * USB Communication Device Class (Ethernet Networking Control Model)
+ * http://www.usb.org/developers/devclass_docs/usbcdc11.pdf
+ */
+
+/*
+ * USB Network Control Model (NCM)
+ * http://www.usb.org/developers/devclass_docs/NCM10.zip
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/stdint.h>
+#include <sys/stddef.h>
+#include <rtems/bsd/sys/param.h>
+#include <sys/queue.h>
+#include <sys/types.h>
+#include <sys/systm.h>
+#include <sys/socket.h>
+#include <sys/kernel.h>
+#include <sys/bus.h>
+#include <sys/module.h>
+#include <rtems/bsd/sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/condvar.h>
+#include <sys/sysctl.h>
+#include <sys/sx.h>
+#include <rtems/bsd/sys/unistd.h>
+#include <sys/callout.h>
+#include <sys/malloc.h>
+#include <sys/priv.h>
+
+#include <net/if.h>
+#include <net/if_var.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdi_util.h>
+#include <dev/usb/usb_cdc.h>
+#include <rtems/bsd/local/usbdevs.h>
+
+#define USB_DEBUG_VAR cdce_debug
+#include <dev/usb/usb_debug.h>
+#include <dev/usb/usb_process.h>
+#include <dev/usb/usb_msctest.h>
+#include <rtems/bsd/local/usb_if.h>
+
+#include <dev/usb/net/usb_ethernet.h>
+#include <dev/usb/net/if_cdcereg.h>
+
+static device_probe_t cdce_probe;
+static device_attach_t cdce_attach;
+static device_detach_t cdce_detach;
+static device_suspend_t cdce_suspend;
+static device_resume_t cdce_resume;
+static usb_handle_request_t cdce_handle_request;
+
+static usb_callback_t cdce_bulk_write_callback;
+static usb_callback_t cdce_bulk_read_callback;
+static usb_callback_t cdce_intr_read_callback;
+static usb_callback_t cdce_intr_write_callback;
+
+#if CDCE_HAVE_NCM
+static usb_callback_t cdce_ncm_bulk_write_callback;
+static usb_callback_t cdce_ncm_bulk_read_callback;
+#endif
+
+static uether_fn_t cdce_attach_post;
+static uether_fn_t cdce_init;
+static uether_fn_t cdce_stop;
+static uether_fn_t cdce_start;
+static uether_fn_t cdce_setmulti;
+static uether_fn_t cdce_setpromisc;
+
+static uint32_t cdce_m_crc32(struct mbuf *, uint32_t, uint32_t);
+
+#ifdef USB_DEBUG
+static int cdce_debug = 0;
+static int cdce_tx_interval = 0;
+
+static SYSCTL_NODE(_hw_usb, OID_AUTO, cdce, CTLFLAG_RW, 0, "USB CDC-Ethernet");
+SYSCTL_INT(_hw_usb_cdce, OID_AUTO, debug, CTLFLAG_RWTUN, &cdce_debug, 0,
+ "Debug level");
+SYSCTL_INT(_hw_usb_cdce, OID_AUTO, interval, CTLFLAG_RWTUN, &cdce_tx_interval,
0,
+ "NCM transmit interval in ms");
+#endif
+
+static const struct usb_config cdce_config[CDCE_N_TRANSFER] = {
+
+ [CDCE_BULK_RX] = {
+ .type = UE_BULK,
+ .endpoint = UE_ADDR_ANY,
+ .direction = UE_DIR_RX,
+ .if_index = 0,
+ .frames = CDCE_FRAMES_MAX,
+ .bufsize = (CDCE_FRAMES_MAX * MCLBYTES),
+ .flags = {.pipe_bof = 1,.short_frames_ok = 1,.short_xfer_ok =
1,.ext_buffer = 1,},
+ .callback = cdce_bulk_read_callback,
+ .timeout = 0, /* no timeout */
+ .usb_mode = USB_MODE_DUAL, /* both modes */
+ },
+
+ [CDCE_BULK_TX] = {
+ .type = UE_BULK,
+ .endpoint = UE_ADDR_ANY,
+ .direction = UE_DIR_TX,
+ .if_index = 0,
+ .frames = CDCE_FRAMES_MAX,
+ .bufsize = (CDCE_FRAMES_MAX * MCLBYTES),
+ .flags = {.pipe_bof = 1,.force_short_xfer = 1,.ext_buffer = 1,},
+ .callback = cdce_bulk_write_callback,
+ .timeout = 10000, /* 10 seconds */
+ .usb_mode = USB_MODE_DUAL, /* both modes */
+ },
+
+ [CDCE_INTR_RX] = {
+ .type = UE_INTERRUPT,
+ .endpoint = UE_ADDR_ANY,
+ .direction = UE_DIR_RX,
+ .if_index = 1,
+ .bufsize = CDCE_IND_SIZE_MAX,
+ .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.no_pipe_ok = 1,},
+ .callback = cdce_intr_read_callback,
+ .timeout = 0,
+ .usb_mode = USB_MODE_HOST,
+ },
+
+ [CDCE_INTR_TX] = {
+ .type = UE_INTERRUPT,
+ .endpoint = UE_ADDR_ANY,
+ .direction = UE_DIR_TX,
+ .if_index = 1,
+ .bufsize = CDCE_IND_SIZE_MAX,
+ .flags = {.pipe_bof = 1,.force_short_xfer = 1,.no_pipe_ok = 1,},
+ .callback = cdce_intr_write_callback,
+ .timeout = 10000, /* 10 seconds */
+ .usb_mode = USB_MODE_DEVICE,
+ },
+};
+
+#if CDCE_HAVE_NCM
+static const struct usb_config cdce_ncm_config[CDCE_N_TRANSFER] = {
+
+ [CDCE_BULK_RX] = {
+ .type = UE_BULK,
+ .endpoint = UE_ADDR_ANY,
+ .direction = UE_DIR_RX,
+ .if_index = 0,
+ .frames = CDCE_NCM_RX_FRAMES_MAX,
+ .bufsize = (CDCE_NCM_RX_FRAMES_MAX * CDCE_NCM_RX_MAXLEN),
+ .flags = {.pipe_bof = 1,.short_frames_ok = 1,.short_xfer_ok =
1,},
+ .callback = cdce_ncm_bulk_read_callback,
+ .timeout = 0, /* no timeout */
+ .usb_mode = USB_MODE_DUAL, /* both modes */
+ },
+
+ [CDCE_BULK_TX] = {
+ .type = UE_BULK,
+ .endpoint = UE_ADDR_ANY,
+ .direction = UE_DIR_TX,
+ .if_index = 0,
+ .frames = CDCE_NCM_TX_FRAMES_MAX,
+ .bufsize = (CDCE_NCM_TX_FRAMES_MAX * CDCE_NCM_TX_MAXLEN),
+ .flags = {.pipe_bof = 1,},
+ .callback = cdce_ncm_bulk_write_callback,
+ .timeout = 10000, /* 10 seconds */
+ .usb_mode = USB_MODE_DUAL, /* both modes */
+ },
+
+ [CDCE_INTR_RX] = {
+ .type = UE_INTERRUPT,
+ .endpoint = UE_ADDR_ANY,
+ .direction = UE_DIR_RX,
+ .if_index = 1,
+ .bufsize = CDCE_IND_SIZE_MAX,
+ .flags = {.pipe_bof = 1,.short_xfer_ok = 1,.no_pipe_ok = 1,},
+ .callback = cdce_intr_read_callback,
+ .timeout = 0,
+ .usb_mode = USB_MODE_HOST,
+ },
+
+ [CDCE_INTR_TX] = {
+ .type = UE_INTERRUPT,
+ .endpoint = UE_ADDR_ANY,
+ .direction = UE_DIR_TX,
+ .if_index = 1,
+ .bufsize = CDCE_IND_SIZE_MAX,
+ .flags = {.pipe_bof = 1,.force_short_xfer = 1,.no_pipe_ok = 1,},
+ .callback = cdce_intr_write_callback,
+ .timeout = 10000, /* 10 seconds */
+ .usb_mode = USB_MODE_DEVICE,
+ },
+};
+#endif
+
+static device_method_t cdce_methods[] = {
+ /* USB interface */
+ DEVMETHOD(usb_handle_request, cdce_handle_request),
+
+ /* Device interface */
+ DEVMETHOD(device_probe, cdce_probe),
+ DEVMETHOD(device_attach, cdce_attach),
+ DEVMETHOD(device_detach, cdce_detach),
+ DEVMETHOD(device_suspend, cdce_suspend),
+ DEVMETHOD(device_resume, cdce_resume),
+
+ DEVMETHOD_END
+};
+
+static driver_t cdce_driver = {
+ .name = "cdce",
+ .methods = cdce_methods,
+ .size = sizeof(struct cdce_softc),
+};
+
+static devclass_t cdce_devclass;
+static eventhandler_tag cdce_etag;
+
+static int cdce_driver_loaded(struct module *, int, void *);
+
+static const STRUCT_USB_HOST_ID cdce_switch_devs[] = {
+ {USB_VPI(USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E3272_INIT,
MSC_EJECT_HUAWEI2)},
+};
+
+static const STRUCT_USB_HOST_ID cdce_host_devs[] = {
+ {USB_VPI(USB_VENDOR_ACERLABS, USB_PRODUCT_ACERLABS_M5632,
CDCE_FLAG_NO_UNION)},
+ {USB_VPI(USB_VENDOR_AMBIT, USB_PRODUCT_AMBIT_NTL_250,
CDCE_FLAG_NO_UNION)},
+ {USB_VPI(USB_VENDOR_COMPAQ, USB_PRODUCT_COMPAQ_IPAQLINUX,
CDCE_FLAG_NO_UNION)},
+ {USB_VPI(USB_VENDOR_GMATE, USB_PRODUCT_GMATE_YP3X00,
CDCE_FLAG_NO_UNION)},
+ {USB_VPI(USB_VENDOR_MOTOROLA2, USB_PRODUCT_MOTOROLA2_USBLAN,
CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)},
+ {USB_VPI(USB_VENDOR_MOTOROLA2, USB_PRODUCT_MOTOROLA2_USBLAN2,
CDCE_FLAG_ZAURUS | CDCE_FLAG_NO_UNION)},
+ {USB_VPI(USB_VENDOR_NETCHIP, USB_PRODUCT_NETCHIP_ETHERNETGADGET,
CDCE_FLAG_NO_UNION)},
+ {USB_VPI(USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2501,
CDCE_FLAG_NO_UNION)},
+ {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SL5500, CDCE_FLAG_ZAURUS)},
+ {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SL5600, CDCE_FLAG_ZAURUS |
CDCE_FLAG_NO_UNION)},
+ {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLA300, CDCE_FLAG_ZAURUS |
CDCE_FLAG_NO_UNION)},
+ {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLC700, CDCE_FLAG_ZAURUS |
CDCE_FLAG_NO_UNION)},
+ {USB_VPI(USB_VENDOR_SHARP, USB_PRODUCT_SHARP_SLC750, CDCE_FLAG_ZAURUS |
CDCE_FLAG_NO_UNION)},
+
+ {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR),
+ USB_IFACE_SUBCLASS(0x02), USB_IFACE_PROTOCOL(0x16),
+ USB_DRIVER_INFO(0)},
+ {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR),
+ USB_IFACE_SUBCLASS(0x02), USB_IFACE_PROTOCOL(0x46),
+ USB_DRIVER_INFO(0)},
+ {USB_VENDOR(USB_VENDOR_HUAWEI), USB_IFACE_CLASS(UICLASS_VENDOR),
+ USB_IFACE_SUBCLASS(0x02), USB_IFACE_PROTOCOL(0x76),
+ USB_DRIVER_INFO(0)},
+};
+
+static const STRUCT_USB_DUAL_ID cdce_dual_devs[] = {
+ {USB_IF_CSI(UICLASS_CDC, UISUBCLASS_ETHERNET_NETWORKING_CONTROL_MODEL,
0)},
+ {USB_IF_CSI(UICLASS_CDC, UISUBCLASS_MOBILE_DIRECT_LINE_MODEL, 0)},
+ {USB_IF_CSI(UICLASS_CDC, UISUBCLASS_NETWORK_CONTROL_MODEL, 0)},
+};
+
+DRIVER_MODULE(cdce, uhub, cdce_driver, cdce_devclass, cdce_driver_loaded, 0);
+MODULE_VERSION(cdce, 1);
+MODULE_DEPEND(cdce, uether, 1, 1, 1);
+MODULE_DEPEND(cdce, usb, 1, 1, 1);
+MODULE_DEPEND(cdce, ether, 1, 1, 1);
+USB_PNP_DEVICE_INFO(cdce_switch_devs);
+USB_PNP_HOST_INFO(cdce_host_devs);
+USB_PNP_DUAL_INFO(cdce_dual_devs);
+
+static const struct usb_ether_methods cdce_ue_methods = {
+ .ue_attach_post = cdce_attach_post,
+ .ue_start = cdce_start,
+ .ue_init = cdce_init,
+ .ue_stop = cdce_stop,
+ .ue_setmulti = cdce_setmulti,
+ .ue_setpromisc = cdce_setpromisc,
+};
+
+#if CDCE_HAVE_NCM
+/*------------------------------------------------------------------------*
+ * cdce_ncm_init
+ *
+ * Return values:
+ * 0: Success
+ * Else: Failure
+ *------------------------------------------------------------------------*/
+static uint8_t
+cdce_ncm_init(struct cdce_softc *sc)
+{
+ struct usb_ncm_parameters temp;
+ struct usb_device_request req;
+ struct usb_ncm_func_descriptor *ufd;
+ uint8_t value[8];
+ int err;
+
+ ufd = usbd_find_descriptor(sc->sc_ue.ue_udev, NULL,
+ sc->sc_ifaces_index[1], UDESC_CS_INTERFACE, 0xFF,
+ UCDC_NCM_FUNC_DESC_SUBTYPE, 0xFF);
+
+ /* verify length of NCM functional descriptor */
+ if (ufd != NULL) {
+ if (ufd->bLength < sizeof(*ufd))
+ ufd = NULL;
+ else
+ DPRINTFN(1, "Found NCM functional descriptor.\n");
+ }
+
+ req.bmRequestType = UT_READ_CLASS_INTERFACE;
+ req.bRequest = UCDC_NCM_GET_NTB_PARAMETERS;
+ USETW(req.wValue, 0);
+ req.wIndex[0] = sc->sc_ifaces_index[1];
+ req.wIndex[1] = 0;
+ USETW(req.wLength, sizeof(temp));
+
+ err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req,
+ &temp, 0, NULL, 1000 /* ms */);
+ if (err)
+ return (1);
+
+ /* Read correct set of parameters according to device mode */
+
+ if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) {
+ sc->sc_ncm.rx_max = UGETDW(temp.dwNtbInMaxSize);
+ sc->sc_ncm.tx_max = UGETDW(temp.dwNtbOutMaxSize);
+ sc->sc_ncm.tx_remainder = UGETW(temp.wNdpOutPayloadRemainder);
+ sc->sc_ncm.tx_modulus = UGETW(temp.wNdpOutDivisor);
+ sc->sc_ncm.tx_struct_align = UGETW(temp.wNdpOutAlignment);
+ sc->sc_ncm.tx_nframe = UGETW(temp.wNtbOutMaxDatagrams);
+ } else {
+ sc->sc_ncm.rx_max = UGETDW(temp.dwNtbOutMaxSize);
+ sc->sc_ncm.tx_max = UGETDW(temp.dwNtbInMaxSize);
+ sc->sc_ncm.tx_remainder = UGETW(temp.wNdpInPayloadRemainder);
+ sc->sc_ncm.tx_modulus = UGETW(temp.wNdpInDivisor);
+ sc->sc_ncm.tx_struct_align = UGETW(temp.wNdpInAlignment);
+ sc->sc_ncm.tx_nframe = UGETW(temp.wNtbOutMaxDatagrams);
+ }
+
+ /* Verify maximum receive length */
+
+ if ((sc->sc_ncm.rx_max < 32) ||
+ (sc->sc_ncm.rx_max > CDCE_NCM_RX_MAXLEN)) {
+ DPRINTFN(1, "Using default maximum receive length\n");
+ sc->sc_ncm.rx_max = CDCE_NCM_RX_MAXLEN;
+ }
+
+ /* Verify maximum transmit length */
+
+ if ((sc->sc_ncm.tx_max < 32) ||
+ (sc->sc_ncm.tx_max > CDCE_NCM_TX_MAXLEN)) {
+ DPRINTFN(1, "Using default maximum transmit length\n");
+ sc->sc_ncm.tx_max = CDCE_NCM_TX_MAXLEN;
+ }
+
+ /*
+ * Verify that the structure alignment is:
+ * - power of two
+ * - not greater than the maximum transmit length
+ * - not less than four bytes
+ */
+ if ((sc->sc_ncm.tx_struct_align < 4) ||
+ (sc->sc_ncm.tx_struct_align !=
+ ((-sc->sc_ncm.tx_struct_align) & sc->sc_ncm.tx_struct_align)) ||
+ (sc->sc_ncm.tx_struct_align >= sc->sc_ncm.tx_max)) {
+ DPRINTFN(1, "Using default other alignment: 4 bytes\n");
+ sc->sc_ncm.tx_struct_align = 4;
+ }
+
+ /*
+ * Verify that the payload alignment is:
+ * - power of two
+ * - not greater than the maximum transmit length
+ * - not less than four bytes
+ */
+ if ((sc->sc_ncm.tx_modulus < 4) ||
+ (sc->sc_ncm.tx_modulus !=
+ ((-sc->sc_ncm.tx_modulus) & sc->sc_ncm.tx_modulus)) ||
+ (sc->sc_ncm.tx_modulus >= sc->sc_ncm.tx_max)) {
+ DPRINTFN(1, "Using default transmit modulus: 4 bytes\n");
+ sc->sc_ncm.tx_modulus = 4;
+ }
+
+ /* Verify that the payload remainder */
+
+ if ((sc->sc_ncm.tx_remainder >= sc->sc_ncm.tx_modulus)) {
+ DPRINTFN(1, "Using default transmit remainder: 0 bytes\n");
+ sc->sc_ncm.tx_remainder = 0;
+ }
+
+ /*
+ * Offset the TX remainder so that IP packet payload starts at
+ * the tx_modulus. This is not too clear in the specification.
+ */
+
+ sc->sc_ncm.tx_remainder =
+ (sc->sc_ncm.tx_remainder - ETHER_HDR_LEN) &
+ (sc->sc_ncm.tx_modulus - 1);
+
+ /* Verify max datagrams */
+
+ if (sc->sc_ncm.tx_nframe == 0 ||
+ sc->sc_ncm.tx_nframe > (CDCE_NCM_SUBFRAMES_MAX - 1)) {
+ DPRINTFN(1, "Using default max "
+ "subframes: %u units\n", CDCE_NCM_SUBFRAMES_MAX - 1);
+ /* need to reserve one entry for zero padding */
+ sc->sc_ncm.tx_nframe = (CDCE_NCM_SUBFRAMES_MAX - 1);
+ }
+
+ /* Additional configuration, will fail in device side mode, which is
OK. */
+
+ req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
+ req.bRequest = UCDC_NCM_SET_NTB_INPUT_SIZE;
+ USETW(req.wValue, 0);
+ req.wIndex[0] = sc->sc_ifaces_index[1];
+ req.wIndex[1] = 0;
+
+ if (ufd != NULL &&
+ (ufd->bmNetworkCapabilities & UCDC_NCM_CAP_MAX_DGRAM)) {
+ USETW(req.wLength, 8);
+ USETDW(value, sc->sc_ncm.rx_max);
+ USETW(value + 4, (CDCE_NCM_SUBFRAMES_MAX - 1));
+ USETW(value + 6, 0);
+ } else {
+ USETW(req.wLength, 4);
+ USETDW(value, sc->sc_ncm.rx_max);
+ }
+
+ err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req,
+ &value, 0, NULL, 1000 /* ms */);
+ if (err) {
+ DPRINTFN(1, "Setting input size "
+ "to %u failed.\n", sc->sc_ncm.rx_max);
+ }
+
+ req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
+ req.bRequest = UCDC_NCM_SET_CRC_MODE;
+ USETW(req.wValue, 0); /* no CRC */
+ req.wIndex[0] = sc->sc_ifaces_index[1];
+ req.wIndex[1] = 0;
+ USETW(req.wLength, 0);
+
+ err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req,
+ NULL, 0, NULL, 1000 /* ms */);
+ if (err) {
+ DPRINTFN(1, "Setting CRC mode to off failed.\n");
+ }
+
+ req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
+ req.bRequest = UCDC_NCM_SET_NTB_FORMAT;
+ USETW(req.wValue, 0); /* NTB-16 */
+ req.wIndex[0] = sc->sc_ifaces_index[1];
+ req.wIndex[1] = 0;
+ USETW(req.wLength, 0);
+
+ err = usbd_do_request_flags(sc->sc_ue.ue_udev, NULL, &req,
+ NULL, 0, NULL, 1000 /* ms */);
+ if (err) {
+ DPRINTFN(1, "Setting NTB format to 16-bit failed.\n");
+ }
+
+ return (0); /* success */
+}
+#endif
+
+static void
+cdce_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)
+ 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(cdce_switch_devs, sizeof(cdce_switch_devs),
uaa))
+ return; /* no device match */
+
+ if (usb_msc_eject(udev, 0, USB_GET_DRIVER_INFO(uaa)) == 0) {
+ /* success, mark the udev as disappearing */
+ uaa->dev_state = UAA_DEV_EJECTING;
+ }
+}
+
+static int
+cdce_driver_loaded(struct module *mod, int what, void *arg)
+{
+ switch (what) {
+ case MOD_LOAD:
+ /* register our autoinstall handler */
+ cdce_etag = EVENTHANDLER_REGISTER(usb_dev_configured,
+ cdce_test_autoinst, NULL, EVENTHANDLER_PRI_ANY);
+ return (0);
+ case MOD_UNLOAD:
+ EVENTHANDLER_DEREGISTER(usb_dev_configured, cdce_etag);
+ return (0);
+ default:
+ return (EOPNOTSUPP);
+ }
+}
+
+static int
+cdce_probe(device_t dev)
+{
+ struct usb_attach_arg *uaa = device_get_ivars(dev);
+ int error;
+
+ error = usbd_lookup_id_by_uaa(cdce_host_devs, sizeof(cdce_host_devs),
uaa);
+ if (error)
+ error = usbd_lookup_id_by_uaa(cdce_dual_devs,
sizeof(cdce_dual_devs), uaa);
+ return (error);
+}
+
+static void
+cdce_attach_post(struct usb_ether *ue)
+{
+ /* no-op */
+ return;
+}
+
+static int
+cdce_attach(device_t dev)
+{
+ struct cdce_softc *sc = device_get_softc(dev);
+ struct usb_ether *ue = &sc->sc_ue;
+ struct usb_attach_arg *uaa = device_get_ivars(dev);
+ struct usb_interface *iface;
+ const struct usb_cdc_union_descriptor *ud;
+ const struct usb_interface_descriptor *id;
+ const struct usb_cdc_ethernet_descriptor *ued;
+ const struct usb_config *pcfg;
+ uint32_t seed;
+ int error;
+ uint8_t i;
+ uint8_t data_iface_no;
+ char eaddr_str[5 * ETHER_ADDR_LEN]; /* approx */
+
+ sc->sc_flags = USB_GET_DRIVER_INFO(uaa);
+ sc->sc_ue.ue_udev = uaa->device;
+
+ device_set_usb_desc(dev);
+
+ mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
+
+ ud = usbd_find_descriptor
+ (uaa->device, NULL, uaa->info.bIfaceIndex,
+ UDESC_CS_INTERFACE, 0xFF, UDESCSUB_CDC_UNION, 0xFF);
+
+ if ((ud == NULL) || (ud->bLength < sizeof(*ud)) ||
+ (sc->sc_flags & CDCE_FLAG_NO_UNION)) {
+ DPRINTFN(1, "No union descriptor!\n");
+ sc->sc_ifaces_index[0] = uaa->info.bIfaceIndex;
+ sc->sc_ifaces_index[1] = uaa->info.bIfaceIndex;
+ goto alloc_transfers;
+ }
+ data_iface_no = ud->bSlaveInterface[0];
+
+ for (i = 0;; i++) {
+
+ iface = usbd_get_iface(uaa->device, i);
+
+ if (iface) {
+
+ id = usbd_get_interface_descriptor(iface);
+
+ if (id && (id->bInterfaceNumber == data_iface_no)) {
+ sc->sc_ifaces_index[0] = i;
+ sc->sc_ifaces_index[1] = uaa->info.bIfaceIndex;
+ usbd_set_parent_iface(uaa->device, i,
uaa->info.bIfaceIndex);
+ break;
+ }
+ } else {
+ device_printf(dev, "no data interface found\n");
+ goto detach;
+ }
+ }
+
+ /*
+ * <quote>
+ *
+ * The Data Class interface of a networking device shall have
+ * a minimum of two interface settings. The first setting
+ * (the default interface setting) includes no endpoints and
+ * therefore no networking traffic is exchanged whenever the
+ * default interface setting is selected. One or more
+ * additional interface settings are used for normal
+ * operation, and therefore each includes a pair of endpoints
+ * (one IN, and one OUT) to exchange network traffic. Select
+ * an alternate interface setting to initialize the network
+ * aspects of the device and to enable the exchange of
+ * network traffic.
+ *
+ * </quote>
+ *
+ * Some devices, most notably cable modems, include interface
+ * settings that have no IN or OUT endpoint, therefore loop
+ * through the list of all available interface settings
+ * looking for one with both IN and OUT endpoints.
+ */
+
+alloc_transfers:
+
+ pcfg = cdce_config; /* Default Configuration */
+
+ for (i = 0; i != 32; i++) {
+
+ error = usbd_set_alt_interface_index(uaa->device,
+ sc->sc_ifaces_index[0], i);
+ if (error)
+ break;
+#if CDCE_HAVE_NCM
+ if ((i == 0) && (cdce_ncm_init(sc) == 0))
+ pcfg = cdce_ncm_config;
+#endif
+ error = usbd_transfer_setup(uaa->device,
+ sc->sc_ifaces_index, sc->sc_xfer,
+ pcfg, CDCE_N_TRANSFER, sc, &sc->sc_mtx);
+
+ if (error == 0)
+ break;
+ }
+
+ if (error || (i == 32)) {
+ device_printf(dev, "No valid alternate "
+ "setting found\n");
+ goto detach;
+ }
+
+ ued = usbd_find_descriptor
+ (uaa->device, NULL, uaa->info.bIfaceIndex,
+ UDESC_CS_INTERFACE, 0xFF, UDESCSUB_CDC_ENF, 0xFF);
+
+ if ((ued == NULL) || (ued->bLength < sizeof(*ued))) {
+ error = USB_ERR_INVAL;
+ } else {
+ error = usbd_req_get_string_any(uaa->device, NULL,
+ eaddr_str, sizeof(eaddr_str), ued->iMacAddress);
+ }
+
+ if (error) {
+
+ /* fake MAC address */
+
+ device_printf(dev, "faking MAC address\n");
+ seed = ticks;
+ sc->sc_ue.ue_eaddr[0] = 0x2a;
+ memcpy(&sc->sc_ue.ue_eaddr[1], &seed, sizeof(uint32_t));
+ sc->sc_ue.ue_eaddr[5] = device_get_unit(dev);
+
+ } else {
+
+ memset(sc->sc_ue.ue_eaddr, 0, sizeof(sc->sc_ue.ue_eaddr));
+
+ for (i = 0; i != (ETHER_ADDR_LEN * 2); i++) {
+
+ char c = eaddr_str[i];
+
+ if ('0' <= c && c <= '9')
+ c -= '0';
+ else if (c != 0)
+ c -= 'A' - 10;
+ else
+ break;
+
+ c &= 0xf;
+
+ if ((i & 1) == 0)
+ c <<= 4;
+ sc->sc_ue.ue_eaddr[i / 2] |= c;
+ }
+
+ if (uaa->usb_mode == USB_MODE_DEVICE) {
+ /*
+ * Do not use the same MAC address like the peer !
+ */
+ sc->sc_ue.ue_eaddr[5] ^= 0xFF;
+ }
+ }
+
+ ue->ue_sc = sc;
+ ue->ue_dev = dev;
+ ue->ue_udev = uaa->device;
+ ue->ue_mtx = &sc->sc_mtx;
+ ue->ue_methods = &cdce_ue_methods;
+
+ error = uether_ifattach(ue);
+ if (error) {
+ device_printf(dev, "could not attach interface\n");
+ goto detach;
+ }
+ return (0); /* success */
+
+detach:
+ cdce_detach(dev);
+ return (ENXIO); /* failure */
+}
+
+static int
+cdce_detach(device_t dev)
+{
+ struct cdce_softc *sc = device_get_softc(dev);
+ struct usb_ether *ue = &sc->sc_ue;
+
+ /* stop all USB transfers first */
+ usbd_transfer_unsetup(sc->sc_xfer, CDCE_N_TRANSFER);
+ uether_ifdetach(ue);
+ mtx_destroy(&sc->sc_mtx);
+
+ return (0);
+}
+
+static void
+cdce_start(struct usb_ether *ue)
+{
+ struct cdce_softc *sc = uether_getsc(ue);
+
+ /*
+ * Start the USB transfers, if not already started:
+ */
+ usbd_transfer_start(sc->sc_xfer[CDCE_BULK_TX]);
+ usbd_transfer_start(sc->sc_xfer[CDCE_BULK_RX]);
+}
+
+static void
+cdce_free_queue(struct mbuf **ppm, uint8_t n)
+{
+ uint8_t x;
+ for (x = 0; x != n; x++) {
+ if (ppm[x] != NULL) {
+ m_freem(ppm[x]);
+ ppm[x] = NULL;
+ }
+ }
+}
+
+static void
+cdce_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
+{
+ struct cdce_softc *sc = usbd_xfer_softc(xfer);
+ struct ifnet *ifp = uether_getifp(&sc->sc_ue);
+ struct mbuf *m;
+ struct mbuf *mt;
+ uint32_t crc;
+ uint8_t x;
+ int actlen, aframes;
+
+ usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL);
+
+ DPRINTFN(1, "\n");
+
+ switch (USB_GET_STATE(xfer)) {
+ case USB_ST_TRANSFERRED:
+ DPRINTFN(11, "transfer complete: %u bytes in %u frames\n",
+ actlen, aframes);
+
+ if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
+
+ /* free all previous TX buffers */
+ cdce_free_queue(sc->sc_tx_buf, CDCE_FRAMES_MAX);
+
+ /* FALLTHROUGH */
+ case USB_ST_SETUP:
+tr_setup:
+ for (x = 0; x != CDCE_FRAMES_MAX; x++) {
+
+ IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
+
+ if (m == NULL)
+ break;
+
+ if (sc->sc_flags & CDCE_FLAG_ZAURUS) {
+ /*
+ * Zaurus wants a 32-bit CRC appended
+ * to every frame
+ */
+
+ crc = cdce_m_crc32(m, 0, m->m_pkthdr.len);
+ crc = htole32(crc);
+
+ if (!m_append(m, 4, (void *)&crc)) {
+ m_freem(m);
+ if_inc_counter(ifp, IFCOUNTER_OERRORS,
1);
+ continue;
+ }
+ }
+ if (m->m_len != m->m_pkthdr.len) {
+ mt = m_defrag(m, M_NOWAIT);
+ if (mt == NULL) {
+ m_freem(m);
+ if_inc_counter(ifp, IFCOUNTER_OERRORS,
1);
+ continue;
+ }
+ m = mt;
+ }
+ if (m->m_pkthdr.len > MCLBYTES) {
+ m->m_pkthdr.len = MCLBYTES;
+ }
+ sc->sc_tx_buf[x] = m;
+ usbd_xfer_set_frame_data(xfer, x, m->m_data, m->m_len);
+
+ /*
+ * If there's a BPF listener, bounce a copy of
+ * this frame to him:
+ */
+ BPF_MTAP(ifp, m);
+ }
+ if (x != 0) {
+ usbd_xfer_set_frames(xfer, x);
+
+ usbd_transfer_submit(xfer);
+ }
+ break;
+
+ default: /* Error */
+ DPRINTFN(11, "transfer error, %s\n",
+ usbd_errstr(error));
+
+ /* free all previous TX buffers */
+ cdce_free_queue(sc->sc_tx_buf, CDCE_FRAMES_MAX);
+
+ /* count output errors */
+ if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
+
+ if (error != USB_ERR_CANCELLED) {
+ if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) {
+ /* try to clear stall first */
+ usbd_xfer_set_stall(xfer);
+ }
+ goto tr_setup;
+ }
+ break;
+ }
+}
+
+static int32_t
+cdce_m_crc32_cb(void *arg, void *src, uint32_t count)
+{
+ uint32_t *p_crc = arg;
+
+ *p_crc = crc32_raw(src, count, *p_crc);
+ return (0);
+}
+
+static uint32_t
+cdce_m_crc32(struct mbuf *m, uint32_t src_offset, uint32_t src_len)
+{
+ uint32_t crc = 0xFFFFFFFF;
+ int error;
+
+ error = m_apply(m, src_offset, src_len, cdce_m_crc32_cb, &crc);
+ return (crc ^ 0xFFFFFFFF);
+}
+
+static void
+cdce_init(struct usb_ether *ue)
+{
+ struct cdce_softc *sc = uether_getsc(ue);
+ struct ifnet *ifp = uether_getifp(ue);
+
+ CDCE_LOCK_ASSERT(sc, MA_OWNED);
+
+ ifp->if_drv_flags |= IFF_DRV_RUNNING;
+
+ /* start interrupt transfer */
+ usbd_transfer_start(sc->sc_xfer[CDCE_INTR_RX]);
+ usbd_transfer_start(sc->sc_xfer[CDCE_INTR_TX]);
+
+ /*
+ * Stall data write direction, which depends on USB mode.
+ *
+ * Some USB host stacks (e.g. Mac OS X) don't clears stall
+ * bit as it should, so set it in our host mode only.
+ */
+ if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST)
+ usbd_xfer_set_stall(sc->sc_xfer[CDCE_BULK_TX]);
+
+ /* start data transfers */
+ cdce_start(ue);
+}
+
+static void
+cdce_stop(struct usb_ether *ue)
+{
+ struct cdce_softc *sc = uether_getsc(ue);
+ struct ifnet *ifp = uether_getifp(ue);
+
+ CDCE_LOCK_ASSERT(sc, MA_OWNED);
+
+ ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
+
+ /*
+ * stop all the transfers, if not already stopped:
+ */
+ usbd_transfer_stop(sc->sc_xfer[CDCE_BULK_RX]);
+ usbd_transfer_stop(sc->sc_xfer[CDCE_BULK_TX]);
+ usbd_transfer_stop(sc->sc_xfer[CDCE_INTR_RX]);
+ usbd_transfer_stop(sc->sc_xfer[CDCE_INTR_TX]);
+}
+
+static void
+cdce_setmulti(struct usb_ether *ue)
+{
+ /* no-op */
+ return;
+}
+
+static void
+cdce_setpromisc(struct usb_ether *ue)
+{
+ /* no-op */
+ return;
+}
+
+static int
+cdce_suspend(device_t dev)
+{
+ device_printf(dev, "Suspending\n");
+ return (0);
+}
+
+static int
+cdce_resume(device_t dev)
+{
+ device_printf(dev, "Resuming\n");
+ return (0);
+}
+
+static void
+cdce_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
+{
+ struct cdce_softc *sc = usbd_xfer_softc(xfer);
+ struct mbuf *m;
+ uint8_t x;
+ int actlen;
+ int aframes;
+ int len;
+
+ usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL);
+
+ switch (USB_GET_STATE(xfer)) {
+ case USB_ST_TRANSFERRED:
+
+ DPRINTF("received %u bytes in %u frames\n", actlen, aframes);
+
+ for (x = 0; x != aframes; x++) {
+
+ m = sc->sc_rx_buf[x];
+ sc->sc_rx_buf[x] = NULL;
+ len = usbd_xfer_frame_len(xfer, x);
+
+ /* Strip off CRC added by Zaurus, if any */
+ if ((sc->sc_flags & CDCE_FLAG_ZAURUS) && len >= 14)
+ len -= 4;
+
+ if (len < (int)sizeof(struct ether_header)) {
+ m_freem(m);
+ continue;
+ }
+ /* queue up mbuf */
+ uether_rxmbuf(&sc->sc_ue, m, len);
+ }
+
+ /* FALLTHROUGH */
+ case USB_ST_SETUP:
+ /*
+ * TODO: Implement support for multi frame transfers,
+ * when the USB hardware supports it.
+ */
+ for (x = 0; x != 1; x++) {
+ if (sc->sc_rx_buf[x] == NULL) {
+ m = uether_newbuf();
+ if (m == NULL)
+ goto tr_stall;
+ sc->sc_rx_buf[x] = m;
+ } else {
+ m = sc->sc_rx_buf[x];
+ }
+
+ usbd_xfer_set_frame_data(xfer, x, m->m_data, m->m_len);
+ }
+ /* set number of frames and start hardware */
+ usbd_xfer_set_frames(xfer, x);
+ usbd_transfer_submit(xfer);
+ /* flush any received frames */
+ uether_rxflush(&sc->sc_ue);
+ break;
+
+ default: /* Error */
+ DPRINTF("error = %s\n",
+ usbd_errstr(error));
+
+ if (error != USB_ERR_CANCELLED) {
+tr_stall:
+ if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) {
+ /* try to clear stall first */
+ usbd_xfer_set_stall(xfer);
+ usbd_xfer_set_frames(xfer, 0);
+ usbd_transfer_submit(xfer);
+ }
+ break;
+ }
+
+ /* need to free the RX-mbufs when we are cancelled */
+ cdce_free_queue(sc->sc_rx_buf, CDCE_FRAMES_MAX);
+ break;
+ }
+}
+
+static void
+cdce_intr_read_callback(struct usb_xfer *xfer, usb_error_t error)
+{
+ struct cdce_softc *sc = usbd_xfer_softc(xfer);
+ int actlen;
+
+ usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
+
+ switch (USB_GET_STATE(xfer)) {
+ case USB_ST_TRANSFERRED:
+
+ DPRINTF("Received %d bytes\n", actlen);
+
+ /* TODO: decode some indications */
+
+ /* 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: /* Error */
+ if (error != USB_ERR_CANCELLED) {
+ /* start clear stall */
+ if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST)
+ usbd_xfer_set_stall(xfer);
+ goto tr_setup;
+ }
+ break;
+ }
+}
+
+static void
+cdce_intr_write_callback(struct usb_xfer *xfer, usb_error_t error)
+{
+ struct cdce_softc *sc = usbd_xfer_softc(xfer);
+ struct usb_cdc_notification req;
+ struct usb_page_cache *pc;
+ uint32_t speed;
+ int actlen;
+
+ usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
+
+ switch (USB_GET_STATE(xfer)) {
+ case USB_ST_TRANSFERRED:
+
+ DPRINTF("Transferred %d bytes\n", actlen);
+
+ switch (sc->sc_notify_state) {
+ case CDCE_NOTIFY_NETWORK_CONNECTION:
+ sc->sc_notify_state = CDCE_NOTIFY_SPEED_CHANGE;
+ break;
+ case CDCE_NOTIFY_SPEED_CHANGE:
+ sc->sc_notify_state = CDCE_NOTIFY_DONE;
+ break;
+ default:
+ break;
+ }
+
+ /* FALLTHROUGH */
+ case USB_ST_SETUP:
+tr_setup:
+ /*
+ * Inform host about connection. Required according to USB CDC
+ * specification and communicating to Mac OS X USB host stack.
+ * Some of the values seems ignored by Mac OS X though.
+ */
+ if (sc->sc_notify_state == CDCE_NOTIFY_NETWORK_CONNECTION) {
+ req.bmRequestType = UCDC_NOTIFICATION;
+ req.bNotification = UCDC_N_NETWORK_CONNECTION;
+ req.wIndex[0] = sc->sc_ifaces_index[1];
+ req.wIndex[1] = 0;
+ USETW(req.wValue, 1); /* Connected */
+ USETW(req.wLength, 0);
+
+ 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_frames(xfer, 1);
+ usbd_transfer_submit(xfer);
+
+ } else if (sc->sc_notify_state == CDCE_NOTIFY_SPEED_CHANGE) {
+ req.bmRequestType = UCDC_NOTIFICATION;
+ req.bNotification = UCDC_N_CONNECTION_SPEED_CHANGE;
+ req.wIndex[0] = sc->sc_ifaces_index[1];
+ req.wIndex[1] = 0;
+ USETW(req.wValue, 0);
+ USETW(req.wLength, 8);
+
+ /* Peak theoretical bulk trasfer rate in bits/s */
+ if (usbd_get_speed(sc->sc_ue.ue_udev) != USB_SPEED_FULL)
+ speed = (13 * 512 * 8 * 1000 * 8);
+ else
+ speed = (19 * 64 * 1 * 1000 * 8);
+
+ USETDW(req.data + 0, speed); /* Upstream bit rate */
+ USETDW(req.data + 4, speed); /* Downstream bit rate */
+
+ 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_frames(xfer, 1);
+ usbd_transfer_submit(xfer);
+ }
+ break;
+
+ default: /* Error */
+ if (error != USB_ERR_CANCELLED) {
+ if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) {
+ /* start clear stall */
+ usbd_xfer_set_stall(xfer);
+ }
+ goto tr_setup;
+ }
+ break;
+ }
+}
+
+static int
+cdce_handle_request(device_t dev,
+ const void *preq, void **pptr, uint16_t *plen,
+ uint16_t offset, uint8_t *pstate)
+{
+ struct cdce_softc *sc = device_get_softc(dev);
+ const struct usb_device_request *req = preq;
+ uint8_t is_complete = *pstate;
+
+ /*
+ * When Mac OS X resumes after suspending it expects
+ * to be notified again after this request.
+ */
+ if (req->bmRequestType == UT_WRITE_CLASS_INTERFACE && \
+ req->bRequest == UCDC_NCM_SET_ETHERNET_PACKET_FILTER) {
+
+ if (is_complete == 1) {
+ mtx_lock(&sc->sc_mtx);
+ sc->sc_notify_state = CDCE_NOTIFY_SPEED_CHANGE;
+ usbd_transfer_start(sc->sc_xfer[CDCE_INTR_TX]);
+ mtx_unlock(&sc->sc_mtx);
+ }
+
+ return (0);
+ }
+
+ return (ENXIO); /* use builtin handler */
+}
+
+#if CDCE_HAVE_NCM
+static void
+cdce_ncm_tx_zero(struct usb_page_cache *pc,
+ uint32_t start, uint32_t end)
+{
+ if (start >= CDCE_NCM_TX_MAXLEN)
+ return;
+ if (end > CDCE_NCM_TX_MAXLEN)
+ end = CDCE_NCM_TX_MAXLEN;
+
+ usbd_frame_zero(pc, start, end - start);
+}
+
+static uint8_t
+cdce_ncm_fill_tx_frames(struct usb_xfer *xfer, uint8_t index)
+{
+ struct cdce_softc *sc = usbd_xfer_softc(xfer);
+ struct ifnet *ifp = uether_getifp(&sc->sc_ue);
+ struct usb_page_cache *pc = usbd_xfer_get_frame(xfer, index);
+ struct mbuf *m;
+ uint32_t rem;
+ uint32_t offset;
+ uint32_t last_offset;
+ uint16_t n;
+ uint8_t retval;
+
+ usbd_xfer_set_frame_offset(xfer, index * CDCE_NCM_TX_MAXLEN, index);
+
+ offset = sizeof(sc->sc_ncm.hdr) +
+ sizeof(sc->sc_ncm.dpt) + sizeof(sc->sc_ncm.dp);
+
+ /* Store last valid offset before alignment */
+ last_offset = offset;
+
+ /* Align offset */
+ offset = CDCE_NCM_ALIGN(sc->sc_ncm.tx_remainder,
+ offset, sc->sc_ncm.tx_modulus);
+
+ /* Zero pad */
+ cdce_ncm_tx_zero(pc, last_offset, offset);
+
+ /* buffer full */
+ retval = 2;
+
+ for (n = 0; n != sc->sc_ncm.tx_nframe; n++) {
+
+ /* check if end of transmit buffer is reached */
+
+ if (offset >= sc->sc_ncm.tx_max)
+ break;
+
+ /* compute maximum buffer size */
+
+ rem = sc->sc_ncm.tx_max - offset;
+
+ IFQ_DRV_DEQUEUE(&(ifp->if_snd), m);
+
+ if (m == NULL) {
+ /* buffer not full */
+ retval = 1;
+ break;
+ }
+
+ if (m->m_pkthdr.len > (int)rem) {
+ if (n == 0) {
+ /* The frame won't fit in our buffer */
+ DPRINTFN(1, "Frame too big to be
transmitted!\n");
+ m_freem(m);
+ if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
+ n--;
+ continue;
+ }
+ /* Wait till next buffer becomes ready */
+ IFQ_DRV_PREPEND(&(ifp->if_snd), m);
+ break;
+ }
+ usbd_m_copy_in(pc, offset, m, 0, m->m_pkthdr.len);
+
+ USETW(sc->sc_ncm.dp[n].wFrameLength, m->m_pkthdr.len);
+ USETW(sc->sc_ncm.dp[n].wFrameIndex, offset);
+
+ /* Update offset */
+ offset += m->m_pkthdr.len;
+
+ /* Store last valid offset before alignment */
+ last_offset = offset;
+
+ /* Align offset */
+ offset = CDCE_NCM_ALIGN(sc->sc_ncm.tx_remainder,
+ offset, sc->sc_ncm.tx_modulus);
+
+ /* Zero pad */
+ cdce_ncm_tx_zero(pc, last_offset, offset);
+
+ /*
+ * If there's a BPF listener, bounce a copy
+ * of this frame to him:
+ */
+ BPF_MTAP(ifp, m);
+
+ /* Free mbuf */
+
+ m_freem(m);
+
+ /* Pre-increment interface counter */
+
+ if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
+ }
+
+ if (n == 0)
+ return (0);
+
+ rem = (sizeof(sc->sc_ncm.dpt) + (4 * n) + 4);
+
+ USETW(sc->sc_ncm.dpt.wLength, rem);
+
+ /* zero the rest of the data pointer entries */
+ for (; n != CDCE_NCM_SUBFRAMES_MAX; n++) {
+ USETW(sc->sc_ncm.dp[n].wFrameLength, 0);
+ USETW(sc->sc_ncm.dp[n].wFrameIndex, 0);
+ }
+
+ offset = last_offset;
+
+ /* Align offset */
+ offset = CDCE_NCM_ALIGN(0, offset, CDCE_NCM_TX_MINLEN);
+
+ /* Optimise, save bandwidth and force short termination */
+ if (offset >= sc->sc_ncm.tx_max)
+ offset = sc->sc_ncm.tx_max;
+ else
+ offset ++;
+
+ /* Zero pad */
+ cdce_ncm_tx_zero(pc, last_offset, offset);
+
+ /* set frame length */
+ usbd_xfer_set_frame_len(xfer, index, offset);
+
+ /* Fill out 16-bit header */
+ sc->sc_ncm.hdr.dwSignature[0] = 'N';
+ sc->sc_ncm.hdr.dwSignature[1] = 'C';
+ sc->sc_ncm.hdr.dwSignature[2] = 'M';
+ sc->sc_ncm.hdr.dwSignature[3] = 'H';
+ USETW(sc->sc_ncm.hdr.wHeaderLength, sizeof(sc->sc_ncm.hdr));
+ USETW(sc->sc_ncm.hdr.wBlockLength, offset);
+ USETW(sc->sc_ncm.hdr.wSequence, sc->sc_ncm.tx_seq);
+ USETW(sc->sc_ncm.hdr.wDptIndex, sizeof(sc->sc_ncm.hdr));
+
+ sc->sc_ncm.tx_seq++;
+
+ /* Fill out 16-bit frame table header */
+ sc->sc_ncm.dpt.dwSignature[0] = 'N';
+ sc->sc_ncm.dpt.dwSignature[1] = 'C';
+ sc->sc_ncm.dpt.dwSignature[2] = 'M';
+ sc->sc_ncm.dpt.dwSignature[3] = '0';
+ USETW(sc->sc_ncm.dpt.wNextNdpIndex, 0); /* reserved */
+
+ usbd_copy_in(pc, 0, &(sc->sc_ncm.hdr), sizeof(sc->sc_ncm.hdr));
+ usbd_copy_in(pc, sizeof(sc->sc_ncm.hdr), &(sc->sc_ncm.dpt),
+ sizeof(sc->sc_ncm.dpt));
+ usbd_copy_in(pc, sizeof(sc->sc_ncm.hdr) + sizeof(sc->sc_ncm.dpt),
+ &(sc->sc_ncm.dp), sizeof(sc->sc_ncm.dp));
+ return (retval);
+}
+
+static void
+cdce_ncm_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
+{
+ struct cdce_softc *sc = usbd_xfer_softc(xfer);
+ struct ifnet *ifp = uether_getifp(&sc->sc_ue);
+ uint16_t x;
+ uint8_t temp;
+ int actlen;
+ int aframes;
+
+ switch (USB_GET_STATE(xfer)) {
+ case USB_ST_TRANSFERRED:
+
+ usbd_xfer_status(xfer, &actlen, NULL, &aframes, NULL);
+
+ DPRINTFN(10, "transfer complete: "
+ "%u bytes in %u frames\n", actlen, aframes);
+
+ case USB_ST_SETUP:
+ for (x = 0; x != CDCE_NCM_TX_FRAMES_MAX; x++) {
+ temp = cdce_ncm_fill_tx_frames(xfer, x);
+ if (temp == 0)
+ break;
+ if (temp == 1) {
+ x++;
+ break;
+ }
+ }
+
+ if (x != 0) {
+#ifdef USB_DEBUG
+ usbd_xfer_set_interval(xfer, cdce_tx_interval);
+#endif
+ usbd_xfer_set_frames(xfer, x);
+ usbd_transfer_submit(xfer);
+ }
+ break;
+
+ default: /* Error */
+ DPRINTFN(10, "Transfer error: %s\n",
+ usbd_errstr(error));
+
+ /* update error counter */
+ if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
+
+ if (error != USB_ERR_CANCELLED) {
+ if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) {
+ /* try to clear stall first */
+ usbd_xfer_set_stall(xfer);
+ usbd_xfer_set_frames(xfer, 0);
+ usbd_transfer_submit(xfer);
+ }
+ }
+ break;
+ }
+}
+
+static void
+cdce_ncm_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
+{
+ struct cdce_softc *sc = usbd_xfer_softc(xfer);
+ struct usb_page_cache *pc = usbd_xfer_get_frame(xfer, 0);
+ struct ifnet *ifp = uether_getifp(&sc->sc_ue);
+ struct mbuf *m;
+ int sumdata;
+ int sumlen;
+ int actlen;
+ int aframes;
+ int temp;
+ int nframes;
+ int x;
+ int offset;
+
+ switch (USB_GET_STATE(xfer)) {
+ case USB_ST_TRANSFERRED:
+
+ usbd_xfer_status(xfer, &actlen, &sumlen, &aframes, NULL);
+
+ DPRINTFN(1, "received %u bytes in %u frames\n",
+ actlen, aframes);
+
+ if (actlen < (int)(sizeof(sc->sc_ncm.hdr) +
+ sizeof(sc->sc_ncm.dpt))) {
+ DPRINTFN(1, "frame too short\n");
+ goto tr_setup;
+ }
+ usbd_copy_out(pc, 0, &(sc->sc_ncm.hdr),
+ sizeof(sc->sc_ncm.hdr));
+
+ if ((sc->sc_ncm.hdr.dwSignature[0] != 'N') ||
+ (sc->sc_ncm.hdr.dwSignature[1] != 'C') ||
+ (sc->sc_ncm.hdr.dwSignature[2] != 'M') ||
+ (sc->sc_ncm.hdr.dwSignature[3] != 'H')) {
+ DPRINTFN(1, "invalid HDR signature: "
+ "0x%02x:0x%02x:0x%02x:0x%02x\n",
+ sc->sc_ncm.hdr.dwSignature[0],
+ sc->sc_ncm.hdr.dwSignature[1],
+ sc->sc_ncm.hdr.dwSignature[2],
+ sc->sc_ncm.hdr.dwSignature[3]);
+ goto tr_stall;
+ }
+ temp = UGETW(sc->sc_ncm.hdr.wBlockLength);
+ if (temp > sumlen) {
+ DPRINTFN(1, "unsupported block length %u/%u\n",
+ temp, sumlen);
+ goto tr_stall;
+ }
+ temp = UGETW(sc->sc_ncm.hdr.wDptIndex);
+ if ((int)(temp + sizeof(sc->sc_ncm.dpt)) > actlen) {
+ DPRINTFN(1, "invalid DPT index: 0x%04x\n", temp);
+ goto tr_stall;
+ }
+ usbd_copy_out(pc, temp, &(sc->sc_ncm.dpt),
+ sizeof(sc->sc_ncm.dpt));
+
+ if ((sc->sc_ncm.dpt.dwSignature[0] != 'N') ||
+ (sc->sc_ncm.dpt.dwSignature[1] != 'C') ||
+ (sc->sc_ncm.dpt.dwSignature[2] != 'M') ||
+ (sc->sc_ncm.dpt.dwSignature[3] != '0')) {
+ DPRINTFN(1, "invalid DPT signature"
+ "0x%02x:0x%02x:0x%02x:0x%02x\n",
+ sc->sc_ncm.dpt.dwSignature[0],
+ sc->sc_ncm.dpt.dwSignature[1],
+ sc->sc_ncm.dpt.dwSignature[2],
+ sc->sc_ncm.dpt.dwSignature[3]);
+ goto tr_stall;
+ }
+ nframes = UGETW(sc->sc_ncm.dpt.wLength) / 4;
+
+ /* Subtract size of header and last zero padded entry */
+ if (nframes >= (2 + 1))
+ nframes -= (2 + 1);
+ else
+ nframes = 0;
+
+ DPRINTFN(1, "nframes = %u\n", nframes);
+
+ temp += sizeof(sc->sc_ncm.dpt);
+
+ if ((temp + (4 * nframes)) > actlen)
+ goto tr_stall;
+
+ if (nframes > CDCE_NCM_SUBFRAMES_MAX) {
+ DPRINTFN(1, "Truncating number of frames from %u to
%u\n",
+ nframes, CDCE_NCM_SUBFRAMES_MAX);
+ nframes = CDCE_NCM_SUBFRAMES_MAX;
+ }
+ usbd_copy_out(pc, temp, &(sc->sc_ncm.dp), (4 * nframes));
+
+ sumdata = 0;
+
+ for (x = 0; x != nframes; x++) {
+
+ offset = UGETW(sc->sc_ncm.dp[x].wFrameIndex);
+ temp = UGETW(sc->sc_ncm.dp[x].wFrameLength);
+
+ if ((offset == 0) ||
+ (temp < (int)sizeof(struct ether_header)) ||
+ (temp > (MCLBYTES - ETHER_ALIGN))) {
+ DPRINTFN(1, "NULL frame detected at %d\n", x);
+ m = NULL;
+ /* silently ignore this frame */
+ continue;
+ } else if ((offset + temp) > actlen) {
+ DPRINTFN(1, "invalid frame "
+ "detected at %d\n", x);
+ m = NULL;
+ /* silently ignore this frame */
+ continue;
+ } else if (temp > (int)(MHLEN - ETHER_ALIGN)) {
+ m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
+ } else {
+ m = m_gethdr(M_NOWAIT, MT_DATA);
+ }
+
+ DPRINTFN(16, "frame %u, offset = %u, length = %u \n",
+ x, offset, temp);
+
+ /* check if we have a buffer */
+ if (m) {
+ m->m_len = m->m_pkthdr.len = temp + ETHER_ALIGN;
+ m_adj(m, ETHER_ALIGN);
+
+ usbd_copy_out(pc, offset, m->m_data, temp);
+
+ /* enqueue */
+ uether_rxmbuf(&sc->sc_ue, m, temp);
+
+ sumdata += temp;
+ } else {
+ if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
+ }
+ }
+
+ DPRINTFN(1, "Efficiency: %u/%u bytes\n", sumdata, actlen);
+
+ case USB_ST_SETUP:
+tr_setup:
+ usbd_xfer_set_frame_len(xfer, 0, sc->sc_ncm.rx_max);
+ usbd_xfer_set_frames(xfer, 1);
+ usbd_transfer_submit(xfer);
+ uether_rxflush(&sc->sc_ue); /* must be last */
+ break;
+
+ default: /* Error */
+ DPRINTFN(1, "error = %s\n",
+ usbd_errstr(error));
+
+ if (error != USB_ERR_CANCELLED) {
+tr_stall:
+ if (usbd_get_mode(sc->sc_ue.ue_udev) == USB_MODE_HOST) {
+ /* try to clear stall first */
+ usbd_xfer_set_stall(xfer);
+ usbd_xfer_set_frames(xfer, 0);
+ usbd_transfer_submit(xfer);
+ }
+ }
+ break;
+ }
+}
+#endif
diff --git a/freebsd/sys/dev/usb/net/if_cdcereg.h
b/freebsd/sys/dev/usb/net/if_cdcereg.h
new file mode 100644
index 0000000..1bc2d60
--- /dev/null
+++ b/freebsd/sys/dev/usb/net/if_cdcereg.h
@@ -0,0 +1,105 @@
+/*-
+ * Copyright (c) 2003-2005 Craig Boston
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Bill Paul.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul, THE VOICES IN HIS HEAD OR
+ * THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _USB_IF_CDCEREG_H_
+#define _USB_IF_CDCEREG_H_
+
+#define CDCE_FRAMES_MAX 8 /* units */
+#define CDCE_IND_SIZE_MAX 32 /* bytes */
+
+#define CDCE_NCM_TX_MINLEN 512 /* bytes, must be power of two
*/
+#define CDCE_NCM_TX_MAXLEN (16384 + 4) /* bytes, must be short
terminated */
+#define CDCE_NCM_TX_FRAMES_MAX 8 /* units */
+
+#define CDCE_NCM_RX_MAXLEN (1UL << 14) /* bytes */
+#define CDCE_NCM_RX_FRAMES_MAX 1 /* units */
+
+#define CDCE_NCM_SUBFRAMES_MAX 32 /* units */
+
+#define CDCE_NCM_ALIGN(rem,off,mod) \
+ ((uint32_t)(((uint32_t)(rem)) - \
+ ((uint32_t)((-(uint32_t)(off)) & (-(uint32_t)(mod))))))
+
+#ifndef CDCE_HAVE_NCM
+#define CDCE_HAVE_NCM 1
+#endif
+
+enum {
+ CDCE_BULK_RX,
+ CDCE_BULK_TX,
+ CDCE_INTR_RX,
+ CDCE_INTR_TX,
+ CDCE_N_TRANSFER,
+};
+
+struct cdce_ncm {
+ struct usb_ncm16_hdr hdr;
+ struct usb_ncm16_dpt dpt;
+ struct usb_ncm16_dp dp[CDCE_NCM_SUBFRAMES_MAX];
+ uint32_t rx_max;
+ uint32_t tx_max;
+ uint16_t tx_remainder;
+ uint16_t tx_modulus;
+ uint16_t tx_struct_align;
+ uint16_t tx_seq;
+ uint16_t tx_nframe;
+};
+
+struct cdce_softc {
+ struct usb_ether sc_ue;
+ struct mtx sc_mtx;
+#if CDCE_HAVE_NCM
+ struct cdce_ncm sc_ncm;
+#endif
+ struct usb_xfer *sc_xfer[CDCE_N_TRANSFER];
+ struct mbuf *sc_rx_buf[CDCE_FRAMES_MAX];
+ struct mbuf *sc_tx_buf[CDCE_FRAMES_MAX];
+
+ int sc_flags;
+#define CDCE_FLAG_ZAURUS 0x0001
+#define CDCE_FLAG_NO_UNION 0x0002
+#define CDCE_FLAG_RX_DATA 0x0010
+
+ uint8_t sc_eaddr_str_index;
+ uint8_t sc_ifaces_index[2];
+ uint8_t sc_notify_state;
+#define CDCE_NOTIFY_NETWORK_CONNECTION 0
+#define CDCE_NOTIFY_SPEED_CHANGE 1
+#define CDCE_NOTIFY_DONE 2
+};
+
+#define CDCE_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
+#define CDCE_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
+#define CDCE_LOCK_ASSERT(_sc, t) mtx_assert(&(_sc)->sc_mtx, t)
+#endif /* _USB_IF_CDCEREG_H_ */
diff --git a/freebsd/sys/dev/usb/net/if_smsc.c
b/freebsd/sys/dev/usb/net/if_smsc.c
new file mode 100644
index 0000000..2784787
--- /dev/null
+++ b/freebsd/sys/dev/usb/net/if_smsc.c
@@ -0,0 +1,1886 @@
+#include <machine/rtems-bsd-kernel-space.h>
+
+/*-
+ * Copyright (c) 2012
+ * Ben Gray <bg...@freebsd.org>.
+ * 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("$FreeBSD$");
+
+/*
+ * SMSC LAN9xxx devices (http://www.smsc.com/)
+ *
+ * The LAN9500 & LAN9500A devices are stand-alone USB to Ethernet chips that
+ * support USB 2.0 and 10/100 Mbps Ethernet.
+ *
+ * The LAN951x devices are an integrated USB hub and USB to Ethernet adapter.
+ * The driver only covers the Ethernet part, the standard USB hub driver
+ * supports the hub part.
+ *
+ * This driver is closely modelled on the Linux driver written and copyrighted
+ * by SMSC.
+ *
+ *
+ *
+ *
+ * H/W TCP & UDP Checksum Offloading
+ * ---------------------------------
+ * The chip supports both tx and rx offloading of UDP & TCP checksums, this
+ * feature can be dynamically enabled/disabled.
+ *
+ * RX checksuming is performed across bytes after the IPv4 header to the end of
+ * the Ethernet frame, this means if the frame is padded with non-zero values
+ * the H/W checksum will be incorrect, however the rx code compensates for
this.
+ *
+ * TX checksuming is more complicated, the device requires a special header to
+ * be prefixed onto the start of the frame which indicates the start and end
+ * positions of the UDP or TCP frame. This requires the driver to manually
+ * go through the packet data and decode the headers prior to sending.
+ * On Linux they generally provide cues to the location of the csum and the
+ * area to calculate it over, on FreeBSD we seem to have to do it all
ourselves,
+ * hence this is not as optimal and therefore h/w tX checksum is currently not
+ * implemented.
+ *
+ */
+#include <sys/stdint.h>
+#include <sys/stddef.h>
+#include <rtems/bsd/sys/param.h>
+#include <sys/queue.h>
+#include <sys/types.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/bus.h>
+#include <sys/module.h>
+#include <rtems/bsd/sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/condvar.h>
+#include <sys/socket.h>
+#include <sys/sysctl.h>
+#include <sys/sx.h>
+#include <rtems/bsd/sys/unistd.h>
+#include <sys/callout.h>
+#include <sys/malloc.h>
+#include <sys/priv.h>
+#include <sys/random.h>
+
+#include <net/if.h>
+#include <net/if_var.h>
+
+#include <netinet/in.h>
+#include <netinet/ip.h>
+
+// #include <rtems/bsd/local/opt_platform.h>
+
+#ifdef FDT
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+#endif
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdi_util.h>
+#include <rtems/bsd/local/usbdevs.h>
+
+#define USB_DEBUG_VAR smsc_debug
+#include <dev/usb/usb_debug.h>
+#include <dev/usb/usb_process.h>
+
+#include <dev/usb/net/usb_ethernet.h>
+
+#include <dev/usb/net/if_smscreg.h>
+
+#ifdef USB_DEBUG
+static int smsc_debug = 0;
+
+SYSCTL_NODE(_hw_usb, OID_AUTO, smsc, CTLFLAG_RW, 0, "USB smsc");
+SYSCTL_INT(_hw_usb_smsc, OID_AUTO, debug, CTLFLAG_RWTUN, &smsc_debug, 0,
+ "Debug level");
+#endif
+
+/*
+ * Various supported device vendors/products.
+ */
+static const struct usb_device_id smsc_devs[] = {
+#define SMSC_DEV(p,i) { USB_VPI(USB_VENDOR_SMC2, USB_PRODUCT_SMC2_##p,
i) }
+ SMSC_DEV(LAN89530_ETH, 0),
+ SMSC_DEV(LAN9500_ETH, 0),
+ SMSC_DEV(LAN9500_ETH_2, 0),
+ SMSC_DEV(LAN9500A_ETH, 0),
+ SMSC_DEV(LAN9500A_ETH_2, 0),
+ SMSC_DEV(LAN9505_ETH, 0),
+ SMSC_DEV(LAN9505A_ETH, 0),
+ SMSC_DEV(LAN9514_ETH, 0),
+ SMSC_DEV(LAN9514_ETH_2, 0),
+ SMSC_DEV(LAN9530_ETH, 0),
+ SMSC_DEV(LAN9730_ETH, 0),
+ SMSC_DEV(LAN9500_SAL10, 0),
+ SMSC_DEV(LAN9505_SAL10, 0),
+ SMSC_DEV(LAN9500A_SAL10, 0),
+ SMSC_DEV(LAN9505A_SAL10, 0),
+ SMSC_DEV(LAN9514_SAL10, 0),
+ SMSC_DEV(LAN9500A_HAL, 0),
+ SMSC_DEV(LAN9505A_HAL, 0),
+#undef SMSC_DEV
+};
+
+
+#ifdef USB_DEBUG
+#define smsc_dbg_printf(sc, fmt, args...) \
+ do { \
+ if (smsc_debug > 0) \
+ device_printf((sc)->sc_ue.ue_dev, "debug: " fmt,
##args); \
+ } while(0)
+#else
+#define smsc_dbg_printf(sc, fmt, args...)
+#endif
+
+#define smsc_warn_printf(sc, fmt, args...) \
+ device_printf((sc)->sc_ue.ue_dev, "warning: " fmt, ##args)
+
+#define smsc_err_printf(sc, fmt, args...) \
+ device_printf((sc)->sc_ue.ue_dev, "error: " fmt, ##args)
+
+
+#define ETHER_IS_ZERO(addr) \
+ (!(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]))
+
+#define ETHER_IS_VALID(addr) \
+ (!ETHER_IS_MULTICAST(addr) && !ETHER_IS_ZERO(addr))
+
+static device_probe_t smsc_probe;
+static device_attach_t smsc_attach;
+static device_detach_t smsc_detach;
+
+static usb_callback_t smsc_bulk_read_callback;
+static usb_callback_t smsc_bulk_write_callback;
+
+static miibus_readreg_t smsc_miibus_readreg;
+static miibus_writereg_t smsc_miibus_writereg;
+static miibus_statchg_t smsc_miibus_statchg;
+
+#if __FreeBSD_version > 1000000
+static int smsc_attach_post_sub(struct usb_ether *ue);
+#endif
+static uether_fn_t smsc_attach_post;
+static uether_fn_t smsc_init;
+static uether_fn_t smsc_stop;
+static uether_fn_t smsc_start;
+static uether_fn_t smsc_tick;
+static uether_fn_t smsc_setmulti;
+static uether_fn_t smsc_setpromisc;
+
+static int smsc_ifmedia_upd(struct ifnet *);
+static void smsc_ifmedia_sts(struct ifnet *, struct ifmediareq *);
+
+static int smsc_chip_init(struct smsc_softc *sc);
+static int smsc_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
+
+static const struct usb_config smsc_config[SMSC_N_TRANSFER] = {
+
+ [SMSC_BULK_DT_WR] = {
+ .type = UE_BULK,
+ .endpoint = UE_ADDR_ANY,
+ .direction = UE_DIR_OUT,
+ .frames = 16,
+ .bufsize = 16 * (MCLBYTES + 16),
+ .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
+ .callback = smsc_bulk_write_callback,
+ .timeout = 10000, /* 10 seconds */
+ },
+
+ [SMSC_BULK_DT_RD] = {
+ .type = UE_BULK,
+ .endpoint = UE_ADDR_ANY,
+ .direction = UE_DIR_IN,
+ .bufsize = 20480, /* bytes */
+ .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
+ .callback = smsc_bulk_read_callback,
+ .timeout = 0, /* no timeout */
+ },
+
+ /* The SMSC chip supports an interrupt endpoints, however they aren't
+ * needed as we poll on the MII status.
+ */
+};
+
+static const struct usb_ether_methods smsc_ue_methods = {
+ .ue_attach_post = smsc_attach_post,
+#if __FreeBSD_version > 1000000
+ .ue_attach_post_sub = smsc_attach_post_sub,
+#endif
+ .ue_start = smsc_start,
+ .ue_ioctl = smsc_ioctl,
+ .ue_init = smsc_init,
+ .ue_stop = smsc_stop,
+ .ue_tick = smsc_tick,
+ .ue_setmulti = smsc_setmulti,
+ .ue_setpromisc = smsc_setpromisc,
+ .ue_mii_upd = smsc_ifmedia_upd,
+ .ue_mii_sts = smsc_ifmedia_sts,
+};
+
+/**
+ * smsc_read_reg - Reads a 32-bit register on the device
+ * @sc: driver soft context
+ * @off: offset of the register
+ * @data: pointer a value that will be populated with the register value
+ *
+ * LOCKING:
+ * The device lock must be held before calling this function.
+ *
+ * RETURNS:
+ * 0 on success, a USB_ERR_?? error code on failure.
+ */
+static int
+smsc_read_reg(struct smsc_softc *sc, uint32_t off, uint32_t *data)
+{
+ struct usb_device_request req;
+ uint32_t buf;
+ usb_error_t err;
+
+ SMSC_LOCK_ASSERT(sc, MA_OWNED);
+
+ req.bmRequestType = UT_READ_VENDOR_DEVICE;
+ req.bRequest = SMSC_UR_READ_REG;
+ USETW(req.wValue, 0);
+ USETW(req.wIndex, off);
+ USETW(req.wLength, 4);
+
+ err = uether_do_request(&sc->sc_ue, &req, &buf, 1000);
+ if (err != 0)
+ smsc_warn_printf(sc, "Failed to read register 0x%0x\n", off);
+
+ *data = le32toh(buf);
+
+ return (err);
+}
+
+/**
+ * smsc_write_reg - Writes a 32-bit register on the device
+ * @sc: driver soft context
+ * @off: offset of the register
+ * @data: the 32-bit value to write into the register
+ *
+ * LOCKING:
+ * The device lock must be held before calling this function.
+ *
+ * RETURNS:
+ * 0 on success, a USB_ERR_?? error code on failure.
+ */
+static int
+smsc_write_reg(struct smsc_softc *sc, uint32_t off, uint32_t data)
+{
+ struct usb_device_request req;
+ uint32_t buf;
+ usb_error_t err;
+
+ SMSC_LOCK_ASSERT(sc, MA_OWNED);
+
+ buf = htole32(data);
+
+ req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
+ req.bRequest = SMSC_UR_WRITE_REG;
+ USETW(req.wValue, 0);
+ USETW(req.wIndex, off);
+ USETW(req.wLength, 4);
+
+ err = uether_do_request(&sc->sc_ue, &req, &buf, 1000);
+ if (err != 0)
+ smsc_warn_printf(sc, "Failed to write register 0x%0x\n", off);
+
+ return (err);
+}
+
+/**
+ * smsc_wait_for_bits - Polls on a register value until bits are cleared
+ * @sc: soft context
+ * @reg: offset of the register
+ * @bits: if the bits are clear the function returns
+ *
+ * LOCKING:
+ * The device lock must be held before calling this function.
+ *
+ * RETURNS:
+ * 0 on success, or a USB_ERR_?? error code on failure.
+ */
+static int
+smsc_wait_for_bits(struct smsc_softc *sc, uint32_t reg, uint32_t bits)
+{
+ usb_ticks_t start_ticks;
+ const usb_ticks_t max_ticks = USB_MS_TO_TICKS(1000);
+ uint32_t val;
+ int err;
+
+ SMSC_LOCK_ASSERT(sc, MA_OWNED);
+
+ start_ticks = (usb_ticks_t)ticks;
+ do {
+ if ((err = smsc_read_reg(sc, reg, &val)) != 0)
+ return (err);
+ if (!(val & bits))
+ return (0);
+
+ uether_pause(&sc->sc_ue, hz / 100);
+ } while (((usb_ticks_t)(ticks - start_ticks)) < max_ticks);
+
+ return (USB_ERR_TIMEOUT);
+}
+
+/**
+ * smsc_eeprom_read - Reads the attached EEPROM
+ * @sc: soft context
+ * @off: the eeprom address offset
+ * @buf: stores the bytes
+ * @buflen: the number of bytes to read
+ *
+ * Simply reads bytes from an attached eeprom.
+ *
+ * LOCKING:
+ * The function takes and releases the device lock if it is not already
held.
+ *
+ * RETURNS:
+ * 0 on success, or a USB_ERR_?? error code on failure.
+ */
+static int
+smsc_eeprom_read(struct smsc_softc *sc, uint16_t off, uint8_t *buf, uint16_t
buflen)
+{
+ usb_ticks_t start_ticks;
+ const usb_ticks_t max_ticks = USB_MS_TO_TICKS(1000);
+ int err;
+ int locked;
+ uint32_t val;
+ uint16_t i;
+
+ locked = mtx_owned(&sc->sc_mtx);
+ if (!locked)
+ SMSC_LOCK(sc);
+
+ err = smsc_wait_for_bits(sc, SMSC_EEPROM_CMD, SMSC_EEPROM_CMD_BUSY);
+ if (err != 0) {
+ smsc_warn_printf(sc, "eeprom busy, failed to read data\n");
+ goto done;
+ }
+
+ /* start reading the bytes, one at a time */
+ for (i = 0; i < buflen; i++) {
+
+ val = SMSC_EEPROM_CMD_BUSY | (SMSC_EEPROM_CMD_ADDR_MASK & (off
+ i));
+ if ((err = smsc_write_reg(sc, SMSC_EEPROM_CMD, val)) != 0)
+ goto done;
+
+ start_ticks = (usb_ticks_t)ticks;
+ do {
+ if ((err = smsc_read_reg(sc, SMSC_EEPROM_CMD, &val)) !=
0)
+ goto done;
+ if (!(val & SMSC_EEPROM_CMD_BUSY) || (val &
SMSC_EEPROM_CMD_TIMEOUT))
+ break;
+
+ uether_pause(&sc->sc_ue, hz / 100);
+ } while (((usb_ticks_t)(ticks - start_ticks)) < max_ticks);
+
+ if (val & (SMSC_EEPROM_CMD_BUSY | SMSC_EEPROM_CMD_TIMEOUT)) {
+ smsc_warn_printf(sc, "eeprom command failed\n");
+ err = USB_ERR_IOERROR;
+ break;
+ }
+
+ if ((err = smsc_read_reg(sc, SMSC_EEPROM_DATA, &val)) != 0)
+ goto done;
+
+ buf[i] = (val & 0xff);
+ }
+
+done:
+ if (!locked)
+ SMSC_UNLOCK(sc);
+
+ return (err);
+}
+
+/**
+ * smsc_miibus_readreg - Reads a MII/MDIO register
+ * @dev: usb ether device
+ * @phy: the number of phy reading from
+ * @reg: the register address
+ *
+ * Attempts to read a phy register over the MII bus.
+ *
+ * LOCKING:
+ * Takes and releases the device mutex lock if not already held.
+ *
+ * RETURNS:
+ * Returns the 16-bits read from the MII register, if this function fails 0
+ * is returned.
+ */
+static int
+smsc_miibus_readreg(device_t dev, int phy, int reg)
+{
+ struct smsc_softc *sc = device_get_softc(dev);
+ int locked;
+ uint32_t addr;
+ uint32_t val = 0;
+
+ locked = mtx_owned(&sc->sc_mtx);
+ if (!locked)
+ SMSC_LOCK(sc);
+
+ if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) {
+ smsc_warn_printf(sc, "MII is busy\n");
+ goto done;
+ }
+
+ addr = (phy << 11) | (reg << 6) | SMSC_MII_READ;
+ smsc_write_reg(sc, SMSC_MII_ADDR, addr);
+
+ if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0)
+ smsc_warn_printf(sc, "MII read timeout\n");
+
+ smsc_read_reg(sc, SMSC_MII_DATA, &val);
+ val = le32toh(val);
+
+done:
+ if (!locked)
+ SMSC_UNLOCK(sc);
+
+ return (val & 0xFFFF);
+}
+
+/**
+ * smsc_miibus_writereg - Writes a MII/MDIO register
+ * @dev: usb ether device
+ * @phy: the number of phy writing to
+ * @reg: the register address
+ * @val: the value to write
+ *
+ * Attempts to write a phy register over the MII bus.
+ *
+ * LOCKING:
+ * Takes and releases the device mutex lock if not already held.
+ *
+ * RETURNS:
+ * Always returns 0 regardless of success or failure.
+ */
+static int
+smsc_miibus_writereg(device_t dev, int phy, int reg, int val)
+{
+ struct smsc_softc *sc = device_get_softc(dev);
+ int locked;
+ uint32_t addr;
+
+ if (sc->sc_phyno != phy)
+ return (0);
+
+ locked = mtx_owned(&sc->sc_mtx);
+ if (!locked)
+ SMSC_LOCK(sc);
+
+ if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) {
+ smsc_warn_printf(sc, "MII is busy\n");
+ goto done;
+ }
+
+ val = htole32(val);
+ smsc_write_reg(sc, SMSC_MII_DATA, val);
+
+ addr = (phy << 11) | (reg << 6) | SMSC_MII_WRITE;
+ smsc_write_reg(sc, SMSC_MII_ADDR, addr);
+
+ if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0)
+ smsc_warn_printf(sc, "MII write timeout\n");
+
+done:
+ if (!locked)
+ SMSC_UNLOCK(sc);
+ return (0);
+}
+
+
+
+/**
+ * smsc_miibus_statchg - Called to detect phy status change
+ * @dev: usb ether device
+ *
+ * This function is called periodically by the system to poll for status
+ * changes of the link.
+ *
+ * LOCKING:
+ * Takes and releases the device mutex lock if not already held.
+ */
+static void
+smsc_miibus_statchg(device_t dev)
+{
+ struct smsc_softc *sc = device_get_softc(dev);
+ struct mii_data *mii = uether_getmii(&sc->sc_ue);
+ struct ifnet *ifp;
+ int locked;
+ int err;
+ uint32_t flow;
+ uint32_t afc_cfg;
+
+ locked = mtx_owned(&sc->sc_mtx);
+ if (!locked)
+ SMSC_LOCK(sc);
+
+ ifp = uether_getifp(&sc->sc_ue);
+ if (mii == NULL || ifp == NULL ||
+ (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
+ goto done;
+
+ /* Use the MII status to determine link status */
+ sc->sc_flags &= ~SMSC_FLAG_LINK;
+ if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
+ (IFM_ACTIVE | IFM_AVALID)) {
+ switch (IFM_SUBTYPE(mii->mii_media_active)) {
+ case IFM_10_T:
+ case IFM_100_TX:
+ sc->sc_flags |= SMSC_FLAG_LINK;
+ break;
+ case IFM_1000_T:
+ /* Gigabit ethernet not supported by chipset */
+ break;
+ default:
+ break;
+ }
+ }
+
+ /* Lost link, do nothing. */
+ if ((sc->sc_flags & SMSC_FLAG_LINK) == 0) {
+ smsc_dbg_printf(sc, "link flag not set\n");
+ goto done;
+ }
+
+ err = smsc_read_reg(sc, SMSC_AFC_CFG, &afc_cfg);
+ if (err) {
+ smsc_warn_printf(sc, "failed to read initial AFC_CFG, error
%d\n", err);
+ goto done;
+ }
+
+ /* Enable/disable full duplex operation and TX/RX pause */
+ if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) {
+ smsc_dbg_printf(sc, "full duplex operation\n");
+ sc->sc_mac_csr &= ~SMSC_MAC_CSR_RCVOWN;
+ sc->sc_mac_csr |= SMSC_MAC_CSR_FDPX;
+
+ if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0)
+ flow = 0xffff0002;
+ else
+ flow = 0;
+
+ if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0)
+ afc_cfg |= 0xf;
+ else
+ afc_cfg &= ~0xf;
+
+ } else {
+ smsc_dbg_printf(sc, "half duplex operation\n");
+ sc->sc_mac_csr &= ~SMSC_MAC_CSR_FDPX;
+ sc->sc_mac_csr |= SMSC_MAC_CSR_RCVOWN;
+
+ flow = 0;
+ afc_cfg |= 0xf;
+ }
+
+ err = smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr);
+ err += smsc_write_reg(sc, SMSC_FLOW, flow);
+ err += smsc_write_reg(sc, SMSC_AFC_CFG, afc_cfg);
+ if (err)
+ smsc_warn_printf(sc, "media change failed, error %d\n", err);
+
+done:
+ if (!locked)
+ SMSC_UNLOCK(sc);
+}
+
+/**
+ * smsc_ifmedia_upd - Set media options
+ * @ifp: interface pointer
+ *
+ * Basically boilerplate code that simply calls the mii functions to set
the
+ * media options.
+ *
+ * LOCKING:
+ * The device lock must be held before this function is called.
+ *
+ * RETURNS:
+ * Returns 0 on success or a negative error code.
+ */
+static int
+smsc_ifmedia_upd(struct ifnet *ifp)
+{
+ struct smsc_softc *sc = ifp->if_softc;
+ struct mii_data *mii = uether_getmii(&sc->sc_ue);
+ struct mii_softc *miisc;
+ int err;
+
+ SMSC_LOCK_ASSERT(sc, MA_OWNED);
+
+ LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
+ PHY_RESET(miisc);
+ err = mii_mediachg(mii);
+ return (err);
+}
+
+/**
+ * smsc_ifmedia_sts - Report current media status
+ * @ifp: inet interface pointer
+ * @ifmr: interface media request
+ *
+ * Basically boilerplate code that simply calls the mii functions to get
the
+ * media status.
+ *
+ * LOCKING:
+ * Internally takes and releases the device lock.
+ */
+static void
+smsc_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
+{
+ struct smsc_softc *sc = ifp->if_softc;
+ struct mii_data *mii = uether_getmii(&sc->sc_ue);
+
+ SMSC_LOCK(sc);
+ mii_pollstat(mii);
+ ifmr->ifm_active = mii->mii_media_active;
+ ifmr->ifm_status = mii->mii_media_status;
+ SMSC_UNLOCK(sc);
+}
+
+/**
+ * smsc_hash - Calculate the hash of a mac address
+ * @addr: The mac address to calculate the hash on
+ *
+ * This function is used when configuring a range of m'cast mac addresses
to
+ * filter on. The hash of the mac address is put in the device's mac hash
+ * table.
+ *
+ * RETURNS:
+ * Returns a value from 0-63 value which is the hash of the mac address.
+ */
+static inline uint32_t
+smsc_hash(uint8_t addr[ETHER_ADDR_LEN])
+{
+ return (ether_crc32_be(addr, ETHER_ADDR_LEN) >> 26) & 0x3f;
+}
+
+/**
+ * smsc_setmulti - Setup multicast
+ * @ue: usb ethernet device context
+ *
+ * Tells the device to either accept frames with a multicast mac address, a
+ * select group of m'cast mac addresses or just the devices mac address.
+ *
+ * LOCKING:
+ * Should be called with the SMSC lock held.
+ */
+static void
+smsc_setmulti(struct usb_ether *ue)
+{
+ struct smsc_softc *sc = uether_getsc(ue);
+ struct ifnet *ifp = uether_getifp(ue);
+ struct ifmultiaddr *ifma;
+ uint32_t hashtbl[2] = { 0, 0 };
+ uint32_t hash;
+
+ SMSC_LOCK_ASSERT(sc, MA_OWNED);
+
+ if (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)) {
+ smsc_dbg_printf(sc, "receive all multicast enabled\n");
+ sc->sc_mac_csr |= SMSC_MAC_CSR_MCPAS;
+ sc->sc_mac_csr &= ~SMSC_MAC_CSR_HPFILT;
+
+ } else {
+ /* Take the lock of the mac address list before hashing each of
them */
+ if_maddr_rlock(ifp);
+
+ if (!TAILQ_EMPTY(&ifp->if_multiaddrs)) {
+ /* We are filtering on a set of address so calculate
hashes of each
+ * of the address and set the corresponding bits in the
register.
+ */
+ sc->sc_mac_csr |= SMSC_MAC_CSR_HPFILT;
+ sc->sc_mac_csr &= ~(SMSC_MAC_CSR_PRMS |
SMSC_MAC_CSR_MCPAS);
+
+ TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
+ if (ifma->ifma_addr->sa_family != AF_LINK)
+ continue;
+
+ hash = smsc_hash(LLADDR((struct sockaddr_dl
*)ifma->ifma_addr));
+ hashtbl[hash >> 5] |= 1 << (hash & 0x1F);
+ }
+ } else {
+ /* Only receive packets with destination set to our mac
address */
+ sc->sc_mac_csr &= ~(SMSC_MAC_CSR_MCPAS |
SMSC_MAC_CSR_HPFILT);
+ }
+
+ if_maddr_runlock(ifp);
+
+ /* Debug */
+ if (sc->sc_mac_csr & SMSC_MAC_CSR_HPFILT)
+ smsc_dbg_printf(sc, "receive select group of macs\n");
+ else
+ smsc_dbg_printf(sc, "receive own packets only\n");
+ }
+
+ /* Write the hash table and mac control registers */
+ smsc_write_reg(sc, SMSC_HASHH, hashtbl[1]);
+ smsc_write_reg(sc, SMSC_HASHL, hashtbl[0]);
+ smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr);
+}
+
+
+/**
+ * smsc_setpromisc - Enables/disables promiscuous mode
+ * @ue: usb ethernet device context
+ *
+ * LOCKING:
+ * Should be called with the SMSC lock held.
+ */
+static void
+smsc_setpromisc(struct usb_ether *ue)
+{
+ struct smsc_softc *sc = uether_getsc(ue);
+ struct ifnet *ifp = uether_getifp(ue);
+
+ smsc_dbg_printf(sc, "promiscuous mode %sabled\n",
+ (ifp->if_flags & IFF_PROMISC) ? "en" : "dis");
+
+ SMSC_LOCK_ASSERT(sc, MA_OWNED);
+
+ if (ifp->if_flags & IFF_PROMISC)
+ sc->sc_mac_csr |= SMSC_MAC_CSR_PRMS;
+ else
+ sc->sc_mac_csr &= ~SMSC_MAC_CSR_PRMS;
+
+ smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr);
+}
+
+
+/**
+ * smsc_sethwcsum - Enable or disable H/W UDP and TCP checksumming
+ * @sc: driver soft context
+ *
+ * LOCKING:
+ * Should be called with the SMSC lock held.
+ *
+ * RETURNS:
+ * Returns 0 on success or a negative error code.
+ */
+static int smsc_sethwcsum(struct smsc_softc *sc)
+{
+ struct ifnet *ifp = uether_getifp(&sc->sc_ue);
+ uint32_t val;
+ int err;
+
+ if (!ifp)
+ return (-EIO);
+
+ SMSC_LOCK_ASSERT(sc, MA_OWNED);
+
+ err = smsc_read_reg(sc, SMSC_COE_CTRL, &val);
+ if (err != 0) {
+ smsc_warn_printf(sc, "failed to read SMSC_COE_CTRL (err=%d)\n",
err);
+ return (err);
+ }
+
+ /* Enable/disable the Rx checksum */
+ if ((ifp->if_capabilities & ifp->if_capenable) & IFCAP_RXCSUM)
+ val |= SMSC_COE_CTRL_RX_EN;
+ else
+ val &= ~SMSC_COE_CTRL_RX_EN;
+
+ /* Enable/disable the Tx checksum (currently not supported) */
+ if ((ifp->if_capabilities & ifp->if_capenable) & IFCAP_TXCSUM)
+ val |= SMSC_COE_CTRL_TX_EN;
+ else
+ val &= ~SMSC_COE_CTRL_TX_EN;
+
+ err = smsc_write_reg(sc, SMSC_COE_CTRL, val);
+ if (err != 0) {
+ smsc_warn_printf(sc, "failed to write SMSC_COE_CTRL
(err=%d)\n", err);
+ return (err);
+ }
+
+ return (0);
+}
+
+
+/**
+ * smsc_setmacaddress - Sets the mac address in the device
+ * @sc: driver soft context
+ * @addr: pointer to array contain at least 6 bytes of the mac
+ *
+ * Writes the MAC address into the device, usually the MAC is programmed
with
+ * values from the EEPROM.
+ *
+ * LOCKING:
+ * Should be called with the SMSC lock held.
+ *
+ * RETURNS:
+ * Returns 0 on success or a negative error code.
+ */
+static int
+smsc_setmacaddress(struct smsc_softc *sc, const uint8_t *addr)
+{
+ int err;
+ uint32_t val;
+
+ smsc_dbg_printf(sc, "setting mac address to
%02x:%02x:%02x:%02x:%02x:%02x\n",
+ addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
+
+ SMSC_LOCK_ASSERT(sc, MA_OWNED);
+
+ val = (addr[3] << 24) | (addr[2] << 16) | (addr[1] << 8) | addr[0];
+ if ((err = smsc_write_reg(sc, SMSC_MAC_ADDRL, val)) != 0)
+ goto done;
+
+ val = (addr[5] << 8) | addr[4];
+ err = smsc_write_reg(sc, SMSC_MAC_ADDRH, val);
+
+done:
+ return (err);
+}
+
+/**
+ * smsc_reset - Reset the SMSC chip
+ * @sc: device soft context
+ *
+ * LOCKING:
+ * Should be called with the SMSC lock held.
+ */
+static void
+smsc_reset(struct smsc_softc *sc)
+{
+ struct usb_config_descriptor *cd;
+ usb_error_t err;
+
+ cd = usbd_get_config_descriptor(sc->sc_ue.ue_udev);
+
+ err = usbd_req_set_config(sc->sc_ue.ue_udev, &sc->sc_mtx,
+ cd->bConfigurationValue);
+ if (err)
+ smsc_warn_printf(sc, "reset failed (ignored)\n");
+
+ /* Wait a little while for the chip to get its brains in order. */
+ uether_pause(&sc->sc_ue, hz / 100);
+
+ /* Reinitialize controller to achieve full reset. */
+ smsc_chip_init(sc);
+}
+
+
+/**
+ * smsc_init - Initialises the LAN95xx chip
+ * @ue: USB ether interface
+ *
+ * Called when the interface is brought up (i.e. ifconfig ue0 up), this
+ * initialise the interface and the rx/tx pipes.
+ *
+ * LOCKING:
+ * Should be called with the SMSC lock held.
+ */
+static void
+smsc_init(struct usb_ether *ue)
+{
+ struct smsc_softc *sc = uether_getsc(ue);
+ struct ifnet *ifp = uether_getifp(ue);
+
+ SMSC_LOCK_ASSERT(sc, MA_OWNED);
+
+ if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
+ return;
+
+ /* Cancel pending I/O */
+ smsc_stop(ue);
+
+#if __FreeBSD_version <= 1000000
+ /* On earlier versions this was the first place we could tell the system
+ * that we supported h/w csuming, however this is only called after the
+ * the interface has been brought up - not ideal.
+ */
+ if (!(ifp->if_capabilities & IFCAP_RXCSUM)) {
+ ifp->if_capabilities |= IFCAP_RXCSUM;
+ ifp->if_capenable |= IFCAP_RXCSUM;
+ ifp->if_hwassist = 0;
+ }
+
+ /* TX checksuming is disabled for now
+ ifp->if_capabilities |= IFCAP_TXCSUM;
+ ifp->if_capenable |= IFCAP_TXCSUM;
+ ifp->if_hwassist = CSUM_TCP | CSUM_UDP;
+ */
+#endif
+
+ /* Reset the ethernet interface. */
+ smsc_reset(sc);
+
+ /* Load the multicast filter. */
+ smsc_setmulti(ue);
+
+ /* TCP/UDP checksum offload engines. */
+ smsc_sethwcsum(sc);
+
+ usbd_xfer_set_stall(sc->sc_xfer[SMSC_BULK_DT_WR]);
+
+ /* Indicate we are up and running. */
+ ifp->if_drv_flags |= IFF_DRV_RUNNING;
+
+ /* Switch to selected media. */
+ smsc_ifmedia_upd(ifp);
+ smsc_start(ue);
+}
+
+/**
+ * smsc_bulk_read_callback - Read callback used to process the USB URB
+ * @xfer: the USB transfer
+ * @error:
+ *
+ * Reads the URB data which can contain one or more ethernet frames, the
+ * frames are copyed into a mbuf and given to the system.
+ *
+ * LOCKING:
+ * No locking required, doesn't access internal driver settings.
+ */
+static void
+smsc_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
+{
+ struct smsc_softc *sc = usbd_xfer_softc(xfer);
+ struct usb_ether *ue = &sc->sc_ue;
+ struct ifnet *ifp = uether_getifp(ue);
+ struct mbuf *m;
+ struct usb_page_cache *pc;
+ uint32_t rxhdr;
+ uint16_t pktlen;
+ int off;
+ int actlen;
+
+ usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
+ smsc_dbg_printf(sc, "rx : actlen %d\n", actlen);
+
+ switch (USB_GET_STATE(xfer)) {
+ case USB_ST_TRANSFERRED:
+
+ /* There is always a zero length frame after bringing the IF up
*/
+ if (actlen < (sizeof(rxhdr) + ETHER_CRC_LEN))
+ goto tr_setup;
+
+ /* There maybe multiple packets in the USB frame, each will
have a
+ * header and each needs to have it's own mbuf allocated and
populated
+ * for it.
+ */
+ pc = usbd_xfer_get_frame(xfer, 0);
+ off = 0;
+
+ while (off < actlen) {
+
+ /* The frame header is always aligned on a 4 byte
boundary */
+ off = ((off + 0x3) & ~0x3);
+
+ usbd_copy_out(pc, off, &rxhdr, sizeof(rxhdr));
+ off += (sizeof(rxhdr) + ETHER_ALIGN);
+ rxhdr = le32toh(rxhdr);
+
+ pktlen = (uint16_t)SMSC_RX_STAT_FRM_LENGTH(rxhdr);
+
+ smsc_dbg_printf(sc, "rx : rxhdr 0x%08x : pktlen %d :
actlen %d : "
+ "off %d\n", rxhdr, pktlen, actlen, off);
+
+
+ if (rxhdr & SMSC_RX_STAT_ERROR) {
+ smsc_dbg_printf(sc, "rx error (hdr 0x%08x)\n",
rxhdr);
+ #ifndef __rtems__
+ if_inc_counter(ifp, IFCOUNTER_IERRORS,
1);
+ #else /* __rtems__ */
+ ifp->if_ierrors++;
+ #endif /* __rtems__ */
+
+ if (rxhdr & SMSC_RX_STAT_COLLISION)
+ #ifndef __rtems__
+ if_inc_counter(ifp,
IFCOUNTER_COLLISIONS, 1);
+ #else /* __rtems__ */
+ sc->ifp->if_collisions += 1;
+ #endif /* __rtems__ */
+ } else {
+
+ /* Check if the ethernet frame is too big or
too small */
+ if ((pktlen < ETHER_HDR_LEN) || (pktlen >
(actlen - off)))
+ goto tr_setup;
+
+ /* Create a new mbuf to store the packet in */
+ m = uether_newbuf();
+ if (m == NULL) {
+ smsc_warn_printf(sc, "failed to create
new mbuf\n");
+ #ifndef __rtems__
+ if_inc_counter(ifp,
IFCOUNTER_IQDROPS, 1);
+ #else /* __rtems__ */
+ ifp->if_iqdrops++;
+ #endif /* __rtems__ */
+
+ goto tr_setup;
+ }
+
+ usbd_copy_out(pc, off, mtod(m, uint8_t *),
pktlen);
+
+ /* Check if RX TCP/UDP checksumming is being
offloaded */
+ if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) {
+
+ struct ether_header *eh;
+
+ eh = mtod(m, struct ether_header *);
+
+ /* Remove the extra 2 bytes of the csum
*/
+ pktlen -= 2;
+
+ /* The checksum appears to be
simplistically calculated
+ * over the udp/tcp header and data up
to the end of the
+ * eth frame. Which means if the eth
frame is padded
+ * the csum calculation is incorrectly
performed over
+ * the padding bytes as well. Therefore
to be safe we
+ * ignore the H/W csum on frames less
than or equal to
+ * 64 bytes.
+ *
+ * Ignore H/W csum for non-IPv4 packets.
+ */
+ if ((be16toh(eh->ether_type) ==
ETHERTYPE_IP) &&
+ (pktlen > ETHER_MIN_LEN)) {
+ struct ip *ip;
+
+ ip = (struct ip *)(eh + 1);
+ if ((ip->ip_v == IPVERSION) &&
+ ((ip->ip_p == IPPROTO_TCP)
||
+ (ip->ip_p ==
IPPROTO_UDP))) {
+ /* Indicate the UDP/TCP
csum has been calculated */
+ m->m_pkthdr.csum_flags
|= CSUM_DATA_VALID;
+
+ /* Copy the TCP/UDP
checksum from the last 2 bytes
+ * of the transfer and
put in the csum_data field.
+ */
+ usbd_copy_out(pc, (off
+ pktlen),
+
&m->m_pkthdr.csum_data, 2);
+
+ /* The data is copied
in network order, but the
+ * csum algorithm in
the kernel expects it to be
+ * in host network
order.
+ */
+ m->m_pkthdr.csum_data =
ntohs(m->m_pkthdr.csum_data);
+
+ smsc_dbg_printf(sc, "RX
checksum offloaded (0x%04x)\n",
+
m->m_pkthdr.csum_data);
+ }
+ }
+
+ /* Need to adjust the offset as well or
we'll be off
+ * by 2 because the csum is removed
from the packet
+ * length.
+ */
+ off += 2;
+ }
+
+ /* Finally enqueue the mbuf on the receive
queue */
+ /* Remove 4 trailing bytes */
+ if (pktlen < (4 + ETHER_HDR_LEN)) {
+ m_freem(m);
+ goto tr_setup;
+ }
+ uether_rxmbuf(ue, m, pktlen - 4);
+ }
+
+ /* Update the offset to move to the next potential
packet */
+ off += pktlen;
+ }
+
+ /* FALLTHROUGH */
+
+ case USB_ST_SETUP:
+tr_setup:
+ usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
+ usbd_transfer_submit(xfer);
+ uether_rxflush(ue);
+ return;
+
+ default:
+ if (error != USB_ERR_CANCELLED) {
+ smsc_warn_printf(sc, "bulk read error, %s\n",
usbd_errstr(error));
+ usbd_xfer_set_stall(xfer);
+ goto tr_setup;
+ }
+ return;
+ }
+}
+
+/**
+ * smsc_bulk_write_callback - Write callback used to send ethernet frame(s)
+ * @xfer: the USB transfer
+ * @error: error code if the transfers is in an errored state
+ *
+ * The main write function that pulls ethernet frames off the queue and
sends
+ * them out.
+ *
+ * LOCKING:
+ *
+ */
+static void
+smsc_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
+{
+ struct smsc_softc *sc = usbd_xfer_softc(xfer);
+ struct ifnet *ifp = uether_getifp(&sc->sc_ue);
+ struct usb_page_cache *pc;
+ struct mbuf *m;
+ uint32_t txhdr;
+ uint32_t frm_len = 0;
+ int nframes;
+
+ switch (USB_GET_STATE(xfer)) {
+ case USB_ST_TRANSFERRED:
+ ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
+ /* FALLTHROUGH */
+
+ case USB_ST_SETUP:
+tr_setup:
+ if ((sc->sc_flags & SMSC_FLAG_LINK) == 0 ||
+ (ifp->if_drv_flags & IFF_DRV_OACTIVE) != 0) {
+ /* Don't send anything if there is no link or
controller is busy. */
+ return;
+ }
+
+ for (nframes = 0; nframes < 16 &&
+ !IFQ_DRV_IS_EMPTY(&ifp->if_snd); nframes++) {
+ IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
+ if (m == NULL)
+ break;
+ usbd_xfer_set_frame_offset(xfer, nframes * MCLBYTES,
+ nframes);
+ frm_len = 0;
+ pc = usbd_xfer_get_frame(xfer, nframes);
+
+ /* Each frame is prefixed with two 32-bit values
describing the
+ * length of the packet and buffer.
+ */
+ txhdr = SMSC_TX_CTRL_0_BUF_SIZE(m->m_pkthdr.len) |
+ SMSC_TX_CTRL_0_FIRST_SEG |
SMSC_TX_CTRL_0_LAST_SEG;
+ txhdr = htole32(txhdr);
+ usbd_copy_in(pc, 0, &txhdr, sizeof(txhdr));
+
+ txhdr = SMSC_TX_CTRL_1_PKT_LENGTH(m->m_pkthdr.len);
+ txhdr = htole32(txhdr);
+ usbd_copy_in(pc, 4, &txhdr, sizeof(txhdr));
+
+ frm_len += 8;
+
+ /* Next copy in the actual packet */
+ usbd_m_copy_in(pc, frm_len, m, 0, m->m_pkthdr.len);
+ frm_len += m->m_pkthdr.len;
+
+ #ifndef __rtems__
+ if_inc_counter(sc->ifp, IFCOUNTER_OPACKETS, 1);
+ #else /* __rtems__ */
+ sc->ifp->if_opackets++;
+ #endif /* __rtems__ */
+
+ /* If there's a BPF listener, bounce a copy of this
frame to him */
+ BPF_MTAP(ifp, m);
+
+ m_freem(m);
+
+ /* Set frame length. */
+ usbd_xfer_set_frame_len(xfer, nframes, frm_len);
+ }
+ if (nframes != 0) {
+ usbd_xfer_set_frames(xfer, nframes);
+ usbd_transfer_submit(xfer);
+ ifp->if_drv_flags |= IFF_DRV_OACTIVE;
+ }
+ return;
+
+ default:
+ #ifndef __rtems__
+ if_inc_counter(sc->ifp, IFCOUNTER_OERRORS, 1);
+ #else /* __rtems__ */
+ sc->ifp->if_oerrors++;
+ #endif /* __rtems__ */
+
+ ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
+
+ if (error != USB_ERR_CANCELLED) {
+ smsc_err_printf(sc, "usb error on tx: %s\n",
usbd_errstr(error));
+ usbd_xfer_set_stall(xfer);
+ goto tr_setup;
+ }
+ return;
+ }
+}
+
+/**
+ * smsc_tick - Called periodically to monitor the state of the LAN95xx chip
+ * @ue: USB ether interface
+ *
+ * Simply calls the mii status functions to check the state of the link.
+ *
+ * LOCKING:
+ * Should be called with the SMSC lock held.
+ */
+static void
+smsc_tick(struct usb_ether *ue)
+{
+ struct smsc_softc *sc = uether_getsc(ue);
+ struct mii_data *mii = uether_getmii(&sc->sc_ue);
+
+ SMSC_LOCK_ASSERT(sc, MA_OWNED);
+
+ mii_tick(mii);
+ if ((sc->sc_flags & SMSC_FLAG_LINK) == 0) {
+ smsc_miibus_statchg(ue->ue_dev);
+ if ((sc->sc_flags & SMSC_FLAG_LINK) != 0)
+ smsc_start(ue);
+ }
+}
+
+/**
+ * smsc_start - Starts communication with the LAN95xx chip
+ * @ue: USB ether interface
+ *
+ *
+ *
+ */
+static void
+smsc_start(struct usb_ether *ue)
+{
+ struct smsc_softc *sc = uether_getsc(ue);
+
+ /*
+ * start the USB transfers, if not already started:
+ */
+ usbd_transfer_start(sc->sc_xfer[SMSC_BULK_DT_RD]);
+ usbd_transfer_start(sc->sc_xfer[SMSC_BULK_DT_WR]);
+}
+
+/**
+ * smsc_stop - Stops communication with the LAN95xx chip
+ * @ue: USB ether interface
+ *
+ *
+ *
+ */
+static void
+smsc_stop(struct usb_ether *ue)
+{
+ struct smsc_softc *sc = uether_getsc(ue);
+ struct ifnet *ifp = uether_getifp(ue);
+
+ SMSC_LOCK_ASSERT(sc, MA_OWNED);
+
+ ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
+ sc->sc_flags &= ~SMSC_FLAG_LINK;
+
+ /*
+ * stop all the transfers, if not already stopped:
+ */
+ usbd_transfer_stop(sc->sc_xfer[SMSC_BULK_DT_WR]);
+ usbd_transfer_stop(sc->sc_xfer[SMSC_BULK_DT_RD]);
+}
+
+/**
+ * smsc_phy_init - Initialises the in-built SMSC phy
+ * @sc: driver soft context
+ *
+ * Resets the PHY part of the chip and then initialises it to default
+ * values. The 'link down' and 'auto-negotiation complete' interrupts
+ * from the PHY are also enabled, however we don't monitor the interrupt
+ * endpoints for the moment.
+ *
+ * RETURNS:
+ * Returns 0 on success or EIO if failed to reset the PHY.
+ */
+static int
+smsc_phy_init(struct smsc_softc *sc)
+{
+ int bmcr;
+ usb_ticks_t start_ticks;
+ const usb_ticks_t max_ticks = USB_MS_TO_TICKS(1000);
+
+ SMSC_LOCK_ASSERT(sc, MA_OWNED);
+
+ /* Reset phy and wait for reset to complete */
+ smsc_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_BMCR,
BMCR_RESET);
+
+ start_ticks = ticks;
+ do {
+ uether_pause(&sc->sc_ue, hz / 100);
+ bmcr = smsc_miibus_readreg(sc->sc_ue.ue_dev, sc->sc_phyno,
MII_BMCR);
+ } while ((bmcr & MII_BMCR) && ((ticks - start_ticks) < max_ticks));
+
+ if (((usb_ticks_t)(ticks - start_ticks)) >= max_ticks) {
+ smsc_err_printf(sc, "PHY reset timed-out");
+ return (EIO);
+ }
+
+ smsc_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_ANAR,
+ ANAR_10 | ANAR_10_FD | ANAR_TX | ANAR_TX_FD | /*
all modes */
+ ANAR_CSMA |
+ ANAR_FC |
+ ANAR_PAUSE_ASYM);
+
+ /* Setup the phy to interrupt when the link goes down or autoneg
completes */
+ smsc_miibus_readreg(sc->sc_ue.ue_dev, sc->sc_phyno, SMSC_PHY_INTR_STAT);
+ smsc_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno, SMSC_PHY_INTR_MASK,
+ (SMSC_PHY_INTR_ANEG_COMP |
SMSC_PHY_INTR_LINK_DOWN));
+
+ /* Restart auto-negotation */
+ bmcr = smsc_miibus_readreg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_BMCR);
+ bmcr |= BMCR_STARTNEG;
+ smsc_miibus_writereg(sc->sc_ue.ue_dev, sc->sc_phyno, MII_BMCR, bmcr);
+
+ return (0);
+}
+
+
+/**
+ * smsc_chip_init - Initialises the chip after power on
+ * @sc: driver soft context
+ *
+ * This initialisation sequence is modelled on the procedure in the Linux
+ * driver.
+ *
+ * RETURNS:
+ * Returns 0 on success or an error code on failure.
+ */
+static int
+smsc_chip_init(struct smsc_softc *sc)
+{
+ int err;
+ int locked;
+ uint32_t reg_val;
+ int burst_cap;
+
+ locked = mtx_owned(&sc->sc_mtx);
+ if (!locked)
+ SMSC_LOCK(sc);
+
+ /* Enter H/W config mode */
+ smsc_write_reg(sc, SMSC_HW_CFG, SMSC_HW_CFG_LRST);
+
+ if ((err = smsc_wait_for_bits(sc, SMSC_HW_CFG, SMSC_HW_CFG_LRST)) != 0)
{
+ smsc_warn_printf(sc, "timed-out waiting for reset to
complete\n");
+ goto init_failed;
+ }
+
+ /* Reset the PHY */
+ smsc_write_reg(sc, SMSC_PM_CTRL, SMSC_PM_CTRL_PHY_RST);
+
+ if ((err = smsc_wait_for_bits(sc, SMSC_PM_CTRL, SMSC_PM_CTRL_PHY_RST))
!= 0) {
+ smsc_warn_printf(sc, "timed-out waiting for phy reset to
complete\n");
+ goto init_failed;
+ }
+
+ /* Set the mac address */
+ if ((err = smsc_setmacaddress(sc, sc->sc_ue.ue_eaddr)) != 0) {
+ smsc_warn_printf(sc, "failed to set the MAC address\n");
+ goto init_failed;
+ }
+
+ /* Don't know what the HW_CFG_BIR bit is, but following the reset
sequence
+ * as used in the Linux driver.
+ */
+ if ((err = smsc_read_reg(sc, SMSC_HW_CFG, ®_val)) != 0) {
+ smsc_warn_printf(sc, "failed to read HW_CFG: %d\n", err);
+ goto init_failed;
+ }
+ reg_val |= SMSC_HW_CFG_BIR;
+ smsc_write_reg(sc, SMSC_HW_CFG, reg_val);
+
+ /* There is a so called 'turbo mode' that the linux driver supports, it
+ * seems to allow you to jam multiple frames per Rx transaction. By
default
+ * this driver supports that and therefore allows multiple frames per
URB.
+ *
+ * The xfer buffer size needs to reflect this as well, therefore based
on
+ * the calculations in the Linux driver the RX bufsize is set to 18944,
+ * bufsz = (16 * 1024 + 5 * 512)
+ *
+ * Burst capability is the number of URBs that can be in a burst of
data/
+ * ethernet frames.
+ */
+ if (usbd_get_speed(sc->sc_ue.ue_udev) == USB_SPEED_HIGH)
+ burst_cap = 37;
+ else
+ burst_cap = 128;
+
+ smsc_write_reg(sc, SMSC_BURST_CAP, burst_cap);
+
+ /* Set the default bulk in delay (magic value from Linux driver) */
+ smsc_write_reg(sc, SMSC_BULK_IN_DLY, 0x00002000);
+
+
+
+ /*
+ * Initialise the RX interface
+ */
+ if ((err = smsc_read_reg(sc, SMSC_HW_CFG, ®_val)) < 0) {
+ smsc_warn_printf(sc, "failed to read HW_CFG: (err = %d)\n",
err);
+ goto init_failed;
+ }
+
+ /* Adjust the packet offset in the buffer (designed to try and align IP
+ * header on 4 byte boundary)
+ */
+ reg_val &= ~SMSC_HW_CFG_RXDOFF;
+ reg_val |= (ETHER_ALIGN << 9) & SMSC_HW_CFG_RXDOFF;
+
+ /* The following setings are used for 'turbo mode', a.k.a multiple
frames
+ * per Rx transaction (again info taken form Linux driver).
+ */
+ reg_val |= (SMSC_HW_CFG_MEF | SMSC_HW_CFG_BCE);
+
+ smsc_write_reg(sc, SMSC_HW_CFG, reg_val);
+
+ /* Clear the status register ? */
+ smsc_write_reg(sc, SMSC_INTR_STATUS, 0xffffffff);
+
+ /* Read and display the revision register */
+ if ((err = smsc_read_reg(sc, SMSC_ID_REV, &sc->sc_rev_id)) < 0) {
+ smsc_warn_printf(sc, "failed to read ID_REV (err = %d)\n", err);
+ goto init_failed;
+ }
+
+ device_printf(sc->sc_ue.ue_dev, "chip 0x%04lx, rev. %04lx\n",
+ (sc->sc_rev_id & SMSC_ID_REV_CHIP_ID_MASK) >> 16,
+ (sc->sc_rev_id & SMSC_ID_REV_CHIP_REV_MASK));
+
+ /* GPIO/LED setup */
+ reg_val = SMSC_LED_GPIO_CFG_SPD_LED | SMSC_LED_GPIO_CFG_LNK_LED |
+ SMSC_LED_GPIO_CFG_FDX_LED;
+ smsc_write_reg(sc, SMSC_LED_GPIO_CFG, reg_val);
+
+ /*
+ * Initialise the TX interface
+ */
+ smsc_write_reg(sc, SMSC_FLOW, 0);
+
+ smsc_write_reg(sc, SMSC_AFC_CFG, AFC_CFG_DEFAULT);
+
+ /* Read the current MAC configuration */
+ if ((err = smsc_read_reg(sc, SMSC_MAC_CSR, &sc->sc_mac_csr)) < 0) {
+ smsc_warn_printf(sc, "failed to read MAC_CSR (err=%d)\n", err);
+ goto init_failed;
+ }
+
+ /* Vlan */
+ smsc_write_reg(sc, SMSC_VLAN1, (uint32_t)ETHERTYPE_VLAN);
+
+ /*
+ * Initialise the PHY
+ */
+ if ((err = smsc_phy_init(sc)) != 0)
+ goto init_failed;
+
+
+ /*
+ * Start TX
+ */
+ sc->sc_mac_csr |= SMSC_MAC_CSR_TXEN;
+ smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr);
+ smsc_write_reg(sc, SMSC_TX_CFG, SMSC_TX_CFG_ON);
+
+ /*
+ * Start RX
+ */
+ sc->sc_mac_csr |= SMSC_MAC_CSR_RXEN;
+ smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr);
+
+ if (!locked)
+ SMSC_UNLOCK(sc);
+
+ return (0);
+
+init_failed:
+ if (!locked)
+ SMSC_UNLOCK(sc);
+
+ smsc_err_printf(sc, "smsc_chip_init failed (err=%d)\n", err);
+ return (err);
+}
+
+
+/**
+ * smsc_ioctl - ioctl function for the device
+ * @ifp: interface pointer
+ * @cmd: the ioctl command
+ * @data: data passed in the ioctl call, typically a pointer to struct
ifreq.
+ *
+ * The ioctl routine is overridden to detect change requests for the H/W
+ * checksum capabilities.
+ *
+ * RETURNS:
+ * 0 on success and an error code on failure.
+ */
+static int
+smsc_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
+{
+ struct usb_ether *ue = ifp->if_softc;
+ struct smsc_softc *sc;
+ struct ifreq *ifr;
+ int rc;
+ int mask;
+ int reinit;
+
+ if (cmd == SIOCSIFCAP) {
+
+ sc = uether_getsc(ue);
+ ifr = (struct ifreq *)data;
+
+ SMSC_LOCK(sc);
+
+ rc = 0;
+ reinit = 0;
+
+ mask = ifr->ifr_reqcap ^ ifp->if_capenable;
+
+ /* Modify the RX CSUM enable bits */
+ if ((mask & IFCAP_RXCSUM) != 0 &&
+ (ifp->if_capabilities & IFCAP_RXCSUM) != 0) {
+ ifp->if_capenable ^= IFCAP_RXCSUM;
+
+ if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
+ ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
+ reinit = 1;
+ }
+ }
+
+ SMSC_UNLOCK(sc);
+ if (reinit)
+#if __FreeBSD_version > 1000000
+ uether_init(ue);
+#else
+ ifp->if_init(ue);
+#endif
+
+ } else {
+ rc = uether_ioctl(ifp, cmd, data);
+ }
+
+ return (rc);
+}
+
+#ifdef FDT
+static phandle_t
+smsc_fdt_find_eth_node(phandle_t start)
+{
+ phandle_t child, node;
+
+ /* Traverse through entire tree to find usb ethernet nodes. */
+ for (node = OF_child(start); node != 0; node = OF_peer(node)) {
+ if (fdt_is_compatible(node, "net,ethernet") &&
+ fdt_is_compatible(node, "usb,device"))
+ return (node);
+ child = smsc_fdt_find_eth_node(node);
+ if (child != 0)
+ return (child);
+ }
+
+ return (0);
+}
+
+/**
+ * Get MAC address from FDT blob. Firmware or loader should fill
+ * mac-address or local-mac-address property. Returns 0 if MAC address
+ * obtained, error code otherwise.
+ */
+static int
+smsc_fdt_find_mac(unsigned char *mac)
+{
+ phandle_t node, root;
+ int len;
+
+ root = OF_finddevice("/");
+ node = smsc_fdt_find_eth_node(root);
+ if (node != 0) {
+
+ /* Check if there is property */
+ if ((len = OF_getproplen(node, "local-mac-address")) > 0) {
+ if (len != ETHER_ADDR_LEN)
+ return (EINVAL);
+
+ OF_getprop(node, "local-mac-address", mac,
+ ETHER_ADDR_LEN);
+ return (0);
+ }
+
+ if ((len = OF_getproplen(node, "mac-address")) > 0) {
+ if (len != ETHER_ADDR_LEN)
+ return (EINVAL);
+
+ OF_getprop(node, "mac-address", mac,
+ ETHER_ADDR_LEN);
+ return (0);
+ }
+ }
+
+ return (ENXIO);
+}
+#endif
+
+/**
+ * smsc_attach_post - Called after the driver attached to the USB interface
+ * @ue: the USB ethernet device
+ *
+ * This is where the chip is intialised for the first time. This is
different
+ * from the smsc_init() function in that that one is designed to setup the
+ * H/W to match the UE settings and can be called after a reset.
+ *
+ *
+ */
+static void
+smsc_attach_post(struct usb_ether *ue)
+{
+ struct smsc_softc *sc = uether_getsc(ue);
+ uint32_t mac_h, mac_l;
+ int err;
+
+ smsc_dbg_printf(sc, "smsc_attach_post\n");
+
+ /* Setup some of the basics */
+ sc->sc_phyno = 1;
+
+
+ /* Attempt to get the mac address, if an EEPROM is not attached this
+ * will just return FF:FF:FF:FF:FF:FF, so in such cases we invent a MAC
+ * address based on urandom.
+ */
+ memset(sc->sc_ue.ue_eaddr, 0xff, ETHER_ADDR_LEN);
+
+ /* Check if there is already a MAC address in the register */
+ if ((smsc_read_reg(sc, SMSC_MAC_ADDRL, &mac_l) == 0) &&
+ (smsc_read_reg(sc, SMSC_MAC_ADDRH, &mac_h) == 0)) {
+ sc->sc_ue.ue_eaddr[5] = (uint8_t)((mac_h >> 8) & 0xff);
+ sc->sc_ue.ue_eaddr[4] = (uint8_t)((mac_h) & 0xff);
+ sc->sc_ue.ue_eaddr[3] = (uint8_t)((mac_l >> 24) & 0xff);
+ sc->sc_ue.ue_eaddr[2] = (uint8_t)((mac_l >> 16) & 0xff);
+ sc->sc_ue.ue_eaddr[1] = (uint8_t)((mac_l >> 8) & 0xff);
+ sc->sc_ue.ue_eaddr[0] = (uint8_t)((mac_l) & 0xff);
+ }
+
+ /* MAC address is not set so try to read from EEPROM, if that fails
generate
+ * a random MAC address.
+ */
+ if (!ETHER_IS_VALID(sc->sc_ue.ue_eaddr)) {
+
+ err = smsc_eeprom_read(sc, 0x01, sc->sc_ue.ue_eaddr,
ETHER_ADDR_LEN);
+#ifdef FDT
+ if ((err != 0) || (!ETHER_IS_VALID(sc->sc_ue.ue_eaddr)))
+ err = smsc_fdt_find_mac(sc->sc_ue.ue_eaddr);
+#endif
+ if ((err != 0) || (!ETHER_IS_VALID(sc->sc_ue.ue_eaddr))) {
+ read_random(sc->sc_ue.ue_eaddr, ETHER_ADDR_LEN);
+ sc->sc_ue.ue_eaddr[0] &= ~0x01; /* unicast */
+ sc->sc_ue.ue_eaddr[0] |= 0x02; /* locally
administered */
+ }
+ }
+
+ /* Initialise the chip for the first time */
+ smsc_chip_init(sc);
+}
+
+
+/**
+ * smsc_attach_post_sub - Called after the driver attached to the USB
interface
+ * @ue: the USB ethernet device
+ *
+ * Most of this is boilerplate code and copied from the base USB ethernet
+ * driver. It has been overriden so that we can indicate to the system
that
+ * the chip supports H/W checksumming.
+ *
+ * RETURNS:
+ * Returns 0 on success or a negative error code.
+ */
+#if __FreeBSD_version > 1000000
+static int
+smsc_attach_post_sub(struct usb_ether *ue)
+{
+ struct smsc_softc *sc;
+ struct ifnet *ifp;
+ int error;
+
+ sc = uether_getsc(ue);
+ ifp = ue->ue_ifp;
+ ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
+ ifp->if_start = uether_start;
+ ifp->if_ioctl = smsc_ioctl;
+ ifp->if_init = uether_init;
+ IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+ ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
+ IFQ_SET_READY(&ifp->if_snd);
+
+ /* The chip supports TCP/UDP checksum offloading on TX and RX paths,
however
+ * currently only RX checksum is supported in the driver (see top of
file).
+ */
+ ifp->if_capabilities |= IFCAP_RXCSUM | IFCAP_VLAN_MTU;
+ ifp->if_hwassist = 0;
+
+ /* TX checksuming is disabled (for now?)
+ ifp->if_capabilities |= IFCAP_TXCSUM;
+ ifp->if_capenable |= IFCAP_TXCSUM;
+ ifp->if_hwassist = CSUM_TCP | CSUM_UDP;
+ */
+
+ ifp->if_capenable = ifp->if_capabilities;
+
+ mtx_lock(&Giant);
+ error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp,
+ uether_ifmedia_upd, ue->ue_methods->ue_mii_sts,
+ BMSR_DEFCAPMASK, sc->sc_phyno, MII_OFFSET_ANY, 0);
+ mtx_unlock(&Giant);
+
+ return (error);
+}
+#endif /* __FreeBSD_version > 1000000 */
+
+
+/**
+ * smsc_probe - Probe the interface.
+ * @dev: smsc device handle
+ *
+ * Checks if the device is a match for this driver.
+ *
+ * RETURNS:
+ * Returns 0 on success or an error code on failure.
+ */
+static int
+smsc_probe(device_t dev)
+{
+ struct usb_attach_arg *uaa = device_get_ivars(dev);
+
+ if (uaa->usb_mode != USB_MODE_HOST)
+ return (ENXIO);
+ if (uaa->info.bConfigIndex != SMSC_CONFIG_INDEX)
+ return (ENXIO);
+ if (uaa->info.bIfaceIndex != SMSC_IFACE_IDX)
+ return (ENXIO);
+
+ return (usbd_lookup_id_by_uaa(smsc_devs, sizeof(smsc_devs), uaa));
+}
+
+
+/**
+ * smsc_attach - Attach the interface.
+ * @dev: smsc device handle
+ *
+ * Allocate softc structures, do ifmedia setup and ethernet/BPF attach.
+ *
+ * RETURNS:
+ * Returns 0 on success or a negative error code.
+ */
+static int
+smsc_attach(device_t dev)
+{
+ struct usb_attach_arg *uaa = device_get_ivars(dev);
+ struct smsc_softc *sc = device_get_softc(dev);
+ struct usb_ether *ue = &sc->sc_ue;
+ uint8_t iface_index;
+ int err;
+
+ sc->sc_flags = USB_GET_DRIVER_INFO(uaa);
+
+ device_set_usb_desc(dev);
+
+ mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
+
+ /* Setup the endpoints for the SMSC LAN95xx device(s) */
+ iface_index = SMSC_IFACE_IDX;
+ err = usbd_transfer_setup(uaa->device, &iface_index, sc->sc_xfer,
+ smsc_config, SMSC_N_TRANSFER, sc,
&sc->sc_mtx);
+ if (err) {
+ device_printf(dev, "error: allocating USB transfers failed\n");
+ goto detach;
+ }
+
+ ue->ue_sc = sc;
+ ue->ue_dev = dev;
+ ue->ue_udev = uaa->device;
+ ue->ue_mtx = &sc->sc_mtx;
+ ue->ue_methods = &smsc_ue_methods;
+
+ err = uether_ifattach(ue);
+ if (err) {
+ device_printf(dev, "error: could not attach interface\n");
+ goto detach;
+ }
+ return (0); /* success */
+
+detach:
+ smsc_detach(dev);
+ return (ENXIO); /* failure */
+}
+
+/**
+ * smsc_detach - Detach the interface.
+ * @dev: smsc device handle
+ *
+ * RETURNS:
+ * Returns 0.
+ */
+static int
+smsc_detach(device_t dev)
+{
+ struct smsc_softc *sc = device_get_softc(dev);
+ struct usb_ether *ue = &sc->sc_ue;
+
+ usbd_transfer_unsetup(sc->sc_xfer, SMSC_N_TRANSFER);
+ uether_ifdetach(ue);
+ mtx_destroy(&sc->sc_mtx);
+
+ return (0);
+}
+
+static device_method_t smsc_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, smsc_probe),
+ DEVMETHOD(device_attach, smsc_attach),
+ DEVMETHOD(device_detach, smsc_detach),
+
+ /* bus interface */
+ DEVMETHOD(bus_print_child, bus_generic_print_child),
+ DEVMETHOD(bus_driver_added, bus_generic_driver_added),
+
+ /* MII interface */
+ DEVMETHOD(miibus_readreg, smsc_miibus_readreg),
+ DEVMETHOD(miibus_writereg, smsc_miibus_writereg),
+ DEVMETHOD(miibus_statchg, smsc_miibus_statchg),
+
+ DEVMETHOD_END
+};
+
+static driver_t smsc_driver = {
+ .name = "smsc",
+ .methods = smsc_methods,
+ .size = sizeof(struct smsc_softc),
+};
+
+static devclass_t smsc_devclass;
+
+DRIVER_MODULE(smsc, uhub, smsc_driver, smsc_devclass, NULL, 0);
+DRIVER_MODULE(miibus, smsc, miibus_driver, miibus_devclass, 0, 0);
+MODULE_DEPEND(smsc, uether, 1, 1, 1);
+MODULE_DEPEND(smsc, usb, 1, 1, 1);
+MODULE_DEPEND(smsc, ether, 1, 1, 1);
+MODULE_DEPEND(smsc, miibus, 1, 1, 1);
+MODULE_VERSION(smsc, 1);
+USB_PNP_HOST_INFO(smsc_devs);
diff --git a/freebsd/sys/dev/usb/net/if_smscreg.h
b/freebsd/sys/dev/usb/net/if_smscreg.h
new file mode 100644
index 0000000..cce37ec
--- /dev/null
+++ b/freebsd/sys/dev/usb/net/if_smscreg.h
@@ -0,0 +1,278 @@
+/*-
+ * Copyright (c) 2012
+ * Ben Gray <bg...@freebsd.org>.
+ * 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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+#ifndef _IF_SMSCREG_H_
+#define _IF_SMSCREG_H_
+
+/*
+ * Definitions for the SMSC LAN9514 and LAN9514 USB to ethernet controllers.
+ *
+ * This information was gleaned from the SMSC driver in the linux kernel, where
+ * it is Copyrighted (C) 2007-2008 SMSC.
+ *
+ */
+
+/**
+ * TRANSMIT FRAMES
+ * ---------------
+ * Tx frames are prefixed with an 8-byte header which describes the frame
+ *
+ * 4 bytes 4 bytes variable
+ * +------------+------------+--- . . . . . . . . . . . . ---+
+ * | TX_CTRL_0 | TX_CTRL_1 | Ethernet frame data |
+ * +------------+------------+--- . . . . . . . . . . . . ---+
+ *
+ * Where the headers have the following fields:
+ *
+ * TX_CTRL_0 <20:16> Data offset
+ * TX_CTRL_0 <13> First segment of frame indicator
+ * TX_CTRL_0 <12> Last segment of frame indicator
+ * TX_CTRL_0 <10:0> Buffer size (?)
+ *
+ * TX_CTRL_1 <14> Perform H/W checksuming on IP packets
+ * TX_CTRL_1 <13> Disable automatic ethernet CRC generation
+ * TX_CTRL_1 <12> Disable padding (?)
+ * TX_CTRL_1 <10:0> Packet byte length
+ *
+ */
+#define SMSC_TX_CTRL_0_OFFSET(x) (((x) & 0x1FUL) << 16)
+#define SMSC_TX_CTRL_0_FIRST_SEG (0x1UL << 13)
+#define SMSC_TX_CTRL_0_LAST_SEG (0x1UL << 12)
+#define SMSC_TX_CTRL_0_BUF_SIZE(x) ((x) & 0x000007FFUL)
+
+#define SMSC_TX_CTRL_1_CSUM_ENABLE (0x1UL << 14)
+#define SMSC_TX_CTRL_1_CRC_DISABLE (0x1UL << 13)
+#define SMSC_TX_CTRL_1_PADDING_DISABLE (0x1UL << 12)
+#define SMSC_TX_CTRL_1_PKT_LENGTH(x) ((x) & 0x000007FFUL)
+
+/**
+ * RECEIVE FRAMES
+ * --------------
+ * Rx frames are prefixed with an 4-byte status header which describes any
+ * errors with the frame as well as things like the length
+ *
+ * 4 bytes variable
+ * +------------+--- . . . . . . . . . . . . ---+
+ * | RX_STAT | Ethernet frame data |
+ * +------------+--- . . . . . . . . . . . . ---+
+ *
+ * Where the status header has the following fields:
+ *
+ * RX_STAT <30> Filter Fail
+ * RX_STAT <29:16> Frame Length
+ * RX_STAT <15> Error Summary
+ * RX_STAT <13> Broadcast Frame
+ * RX_STAT <12> Length Error
+ * RX_STAT <11> Runt Frame
+ * RX_STAT <10> Multicast Frame
+ * RX_STAT <7> Frame too long
+ * RX_STAT <6> Collision Seen
+ * RX_STAT <5> Frame Type
+ * RX_STAT <4> Receive Watchdog
+ * RX_STAT <3> Mii Error
+ * RX_STAT <2> Dribbling
+ * RX_STAT <1> CRC Error
+ *
+ */
+#define SMSC_RX_STAT_FILTER_FAIL (0x1UL << 30)
+#define SMSC_RX_STAT_FRM_LENGTH(x) (((x) >> 16) & 0x3FFFUL)
+#define SMSC_RX_STAT_ERROR (0x1UL << 15)
+#define SMSC_RX_STAT_BROADCAST (0x1UL << 13)
+#define SMSC_RX_STAT_LENGTH_ERROR (0x1UL << 12)
+#define SMSC_RX_STAT_RUNT (0x1UL << 11)
+#define SMSC_RX_STAT_MULTICAST (0x1UL << 10)
+#define SMSC_RX_STAT_FRM_TO_LONG (0x1UL << 7)
+#define SMSC_RX_STAT_COLLISION (0x1UL << 6)
+#define SMSC_RX_STAT_FRM_TYPE (0x1UL << 5)
+#define SMSC_RX_STAT_WATCHDOG (0x1UL << 4)
+#define SMSC_RX_STAT_MII_ERROR (0x1UL << 3)
+#define SMSC_RX_STAT_DRIBBLING (0x1UL << 2)
+#define SMSC_RX_STAT_CRC_ERROR (0x1UL << 1)
+
+/**
+ * REGISTERS
+ *
+ */
+#define SMSC_ID_REV 0x000
+#define SMSC_INTR_STATUS 0x008
+#define SMSC_RX_CFG 0x00C
+#define SMSC_TX_CFG 0x010
+#define SMSC_HW_CFG 0x014
+#define SMSC_PM_CTRL 0x020
+#define SMSC_LED_GPIO_CFG 0x024
+#define SMSC_GPIO_CFG 0x028
+#define SMSC_AFC_CFG 0x02C
+#define SMSC_EEPROM_CMD 0x030
+#define SMSC_EEPROM_DATA 0x034
+#define SMSC_BURST_CAP 0x038
+#define SMSC_GPIO_WAKE 0x064
+#define SMSC_INTR_CFG 0x068
+#define SMSC_BULK_IN_DLY 0x06C
+#define SMSC_MAC_CSR 0x100
+#define SMSC_MAC_ADDRH 0x104
+#define SMSC_MAC_ADDRL 0x108
+#define SMSC_HASHH 0x10C
+#define SMSC_HASHL 0x110
+#define SMSC_MII_ADDR 0x114
+#define SMSC_MII_DATA 0x118
+#define SMSC_FLOW 0x11C
+#define SMSC_VLAN1 0x120
+#define SMSC_VLAN2 0x124
+#define SMSC_WUFF 0x128
+#define SMSC_WUCSR 0x12C
+#define SMSC_COE_CTRL 0x130
+
+/* ID / Revision register */
+#define SMSC_ID_REV_CHIP_ID_MASK 0xFFFF0000UL
+#define SMSC_ID_REV_CHIP_REV_MASK 0x0000FFFFUL
+
+#define SMSC_RX_FIFO_FLUSH (0x1UL << 0)
+
+#define SMSC_TX_CFG_ON (0x1UL << 2)
+#define SMSC_TX_CFG_STOP (0x1UL << 1)
+#define SMSC_TX_CFG_FIFO_FLUSH (0x1UL << 0)
+
+#define SMSC_HW_CFG_BIR (0x1UL << 12)
+#define SMSC_HW_CFG_LEDB (0x1UL << 11)
+#define SMSC_HW_CFG_RXDOFF (0x3UL << 9) /* RX pkt alignment */
+#define SMSC_HW_CFG_DRP (0x1UL << 6)
+#define SMSC_HW_CFG_MEF (0x1UL << 5)
+#define SMSC_HW_CFG_LRST (0x1UL << 3) /* Lite reset */
+#define SMSC_HW_CFG_PSEL (0x1UL << 2)
+#define SMSC_HW_CFG_BCE (0x1UL << 1)
+#define SMSC_HW_CFG_SRST (0x1UL << 0)
+
+#define SMSC_PM_CTRL_PHY_RST (0x1UL << 4) /* PHY reset */
+
+#define SMSC_LED_GPIO_CFG_SPD_LED (0x1UL << 24)
+#define SMSC_LED_GPIO_CFG_LNK_LED (0x1UL << 20)
+#define SMSC_LED_GPIO_CFG_FDX_LED (0x1UL << 16)
+
+/* Hi watermark = 15.5Kb (~10 mtu pkts) */
+/* low watermark = 3k (~2 mtu pkts) */
+/* backpressure duration = ~ 350us */
+/* Apply FC on any frame. */
+#define AFC_CFG_DEFAULT (0x00F830A1)
+
+#define SMSC_EEPROM_CMD_BUSY (0x1UL << 31)
+#define SMSC_EEPROM_CMD_MASK (0x7UL << 28)
+#define SMSC_EEPROM_CMD_READ (0x0UL << 28)
+#define SMSC_EEPROM_CMD_WRITE (0x3UL << 28)
+#define SMSC_EEPROM_CMD_ERASE (0x5UL << 28)
+#define SMSC_EEPROM_CMD_RELOAD (0x7UL << 28)
+#define SMSC_EEPROM_CMD_TIMEOUT (0x1UL << 10)
+#define SMSC_EEPROM_CMD_ADDR_MASK 0x000001FFUL
+
+/* MAC Control and Status Register */
+#define SMSC_MAC_CSR_RCVOWN (0x1UL << 23) /* Half duplex */
+#define SMSC_MAC_CSR_LOOPBK (0x1UL << 21) /* Loopback */
+#define SMSC_MAC_CSR_FDPX (0x1UL << 20) /* Full duplex */
+#define SMSC_MAC_CSR_MCPAS (0x1UL << 19) /* Multicast mode */
+#define SMSC_MAC_CSR_PRMS (0x1UL << 18) /* Promiscuous mode */
+#define SMSC_MAC_CSR_INVFILT (0x1UL << 17) /* Inverse filtering */
+#define SMSC_MAC_CSR_PASSBAD (0x1UL << 16) /* Pass on bad frames */
+#define SMSC_MAC_CSR_HPFILT (0x1UL << 13) /* Hash filtering */
+#define SMSC_MAC_CSR_BCAST (0x1UL << 11) /* Broadcast */
+#define SMSC_MAC_CSR_TXEN (0x1UL << 3) /* TX enable */
+#define SMSC_MAC_CSR_RXEN (0x1UL << 2) /* RX enable */
+
+/* Interrupt control register */
+#define SMSC_INTR_NTEP (0x1UL << 31)
+#define SMSC_INTR_MACRTO (0x1UL << 19)
+#define SMSC_INTR_TX_STOP (0x1UL << 17)
+#define SMSC_INTR_RX_STOP (0x1UL << 16)
+#define SMSC_INTR_PHY_INT (0x1UL << 15)
+#define SMSC_INTR_TXE (0x1UL << 14)
+#define SMSC_INTR_TDFU (0x1UL << 13)
+#define SMSC_INTR_TDFO (0x1UL << 12)
+#define SMSC_INTR_RXDF (0x1UL << 11)
+#define SMSC_INTR_GPIOS 0x000007FFUL
+
+/* Phy MII interface register */
+#define SMSC_MII_WRITE (0x1UL << 1)
+#define SMSC_MII_READ (0x0UL << 1)
+#define SMSC_MII_BUSY (0x1UL << 0)
+
+/* H/W checksum register */
+#define SMSC_COE_CTRL_TX_EN (0x1UL << 16) /* Tx H/W csum enable */
+#define SMSC_COE_CTRL_RX_MODE (0x1UL << 1)
+#define SMSC_COE_CTRL_RX_EN (0x1UL << 0) /* Rx H/W csum enable */
+
+/* Registers on the phy, accessed via MII/MDIO */
+#define SMSC_PHY_INTR_STAT (29)
+#define SMSC_PHY_INTR_MASK (30)
+
+#define SMSC_PHY_INTR_ENERGY_ON (0x1U << 7)
+#define SMSC_PHY_INTR_ANEG_COMP (0x1U << 6)
+#define SMSC_PHY_INTR_REMOTE_FAULT (0x1U << 5)
+#define SMSC_PHY_INTR_LINK_DOWN (0x1U << 4)
+
+/* USB Vendor Requests */
+#define SMSC_UR_WRITE_REG 0xA0
+#define SMSC_UR_READ_REG 0xA1
+#define SMSC_UR_GET_STATS 0xA2
+
+#define SMSC_CONFIG_INDEX 0 /* config number 1 */
+#define SMSC_IFACE_IDX 0
+
+/*
+ * USB endpoints.
+ */
+enum {
+ SMSC_BULK_DT_RD,
+ SMSC_BULK_DT_WR,
+ /* the LAN9514 device does support interrupt endpoints, however I
couldn't
+ * get then to work reliably and since they are unneeded (poll the mii
+ * status) they are unused.
+ * SMSC_INTR_DT_WR,
+ * SMSC_INTR_DT_RD,
+ */
+ SMSC_N_TRANSFER,
+};
+
+struct smsc_softc {
+ struct ifnet *ifp;
+ struct usb_ether sc_ue;
+ struct mtx sc_mtx;
+ struct usb_xfer *sc_xfer[SMSC_N_TRANSFER];
+ int sc_phyno;
+
+ /* The following stores the settings in the mac control (MAC_CSR)
register */
+ uint32_t sc_mac_csr;
+ uint32_t sc_rev_id;
+
+ uint32_t sc_flags;
+#define SMSC_FLAG_LINK 0x0001
+#define SMSC_FLAG_LAN9514 0x1000 /* LAN9514 */
+};
+
+#define SMSC_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
+#define SMSC_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
+#define SMSC_LOCK_ASSERT(_sc, t) mtx_assert(&(_sc)->sc_mtx, t)
+
+#endif /* _IF_SMSCREG_H_ */
diff --git a/freebsd/sys/dev/usb/net/usb_ethernet.c
b/freebsd/sys/dev/usb/net/usb_ethernet.c
new file mode 100644
index 0000000..972ddb7
--- /dev/null
+++ b/freebsd/sys/dev/usb/net/usb_ethernet.c
@@ -0,0 +1,659 @@
+#include <machine/rtems-bsd-kernel-space.h>
+
+/* $FreeBSD$ */
+/*-
+ * Copyright (c) 2009 Andrew Thompson (thom...@freebsd.org)
+ *
+ * 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 AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <rtems/bsd/sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/condvar.h>
+#include <sys/kernel.h>
+#include <rtems/bsd/sys/lock.h>
+#include <sys/malloc.h>
+#include <sys/mbuf.h>
+#include <sys/module.h>
+#include <sys/mutex.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/sysctl.h>
+#include <sys/sx.h>
+
+#include <net/if.h>
+#include <net/if_var.h>
+#include <net/ethernet.h>
+#include <net/if_types.h>
+#include <net/if_media.h>
+#include <net/if_vlan_var.h>
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+
+#include <dev/usb/usb_process.h>
+#include <dev/usb/net/usb_ethernet.h>
+
+static SYSCTL_NODE(_net, OID_AUTO, ue, CTLFLAG_RD, 0,
+ "USB Ethernet parameters");
+
+#define UE_LOCK(_ue) mtx_lock((_ue)->ue_mtx)
+#define UE_UNLOCK(_ue) mtx_unlock((_ue)->ue_mtx)
+#define UE_LOCK_ASSERT(_ue, t) mtx_assert((_ue)->ue_mtx, t)
+
+MODULE_DEPEND(uether, usb, 1, 1, 1);
+MODULE_DEPEND(uether, miibus, 1, 1, 1);
+
+static struct unrhdr *ueunit;
+
+static usb_proc_callback_t ue_attach_post_task;
+static usb_proc_callback_t ue_promisc_task;
+static usb_proc_callback_t ue_setmulti_task;
+static usb_proc_callback_t ue_ifmedia_task;
+static usb_proc_callback_t ue_tick_task;
+static usb_proc_callback_t ue_start_task;
+static usb_proc_callback_t ue_stop_task;
+
+static void ue_init(void *);
+static void ue_start(struct ifnet *);
+static int ue_ifmedia_upd(struct ifnet *);
+static void ue_watchdog(void *);
+
+/*
+ * Return values:
+ * 0: success
+ * Else: device has been detached
+ */
+uint8_t
+uether_pause(struct usb_ether *ue, unsigned int _ticks)
+{
+ if (usb_proc_is_gone(&ue->ue_tq)) {
+ /* nothing to do */
+ return (1);
+ }
+ usb_pause_mtx(ue->ue_mtx, _ticks);
+ return (0);
+}
+
+static void
+ue_queue_command(struct usb_ether *ue,
+ usb_proc_callback_t *fn,
+ struct usb_proc_msg *t0, struct usb_proc_msg *t1)
+{
+ struct usb_ether_cfg_task *task;
+
+ UE_LOCK_ASSERT(ue, MA_OWNED);
+
+ if (usb_proc_is_gone(&ue->ue_tq)) {
+ return; /* nothing to do */
+ }
+ /*
+ * NOTE: The task cannot get executed before we drop the
+ * "sc_mtx" mutex. It is safe to update fields in the message
+ * structure after that the message got queued.
+ */
+ task = (struct usb_ether_cfg_task *)
+ usb_proc_msignal(&ue->ue_tq, t0, t1);
+
+ /* Setup callback and self pointers */
+ task->hdr.pm_callback = fn;
+ task->ue = ue;
+
+ /*
+ * Start and stop must be synchronous!
+ */
+ if ((fn == ue_start_task) || (fn == ue_stop_task))
+ usb_proc_mwait(&ue->ue_tq, t0, t1);
+}
+
+struct ifnet *
+uether_getifp(struct usb_ether *ue)
+{
+ return (ue->ue_ifp);
+}
+
+struct mii_data *
+uether_getmii(struct usb_ether *ue)
+{
+ return (device_get_softc(ue->ue_miibus));
+}
+
+void *
+uether_getsc(struct usb_ether *ue)
+{
+ return (ue->ue_sc);
+}
+
+static int
+ue_sysctl_parent(SYSCTL_HANDLER_ARGS)
+{
+ struct usb_ether *ue = arg1;
+ const char *name;
+
+ name = device_get_nameunit(ue->ue_dev);
+ return SYSCTL_OUT_STR(req, name);
+}
+
+int
+uether_ifattach(struct usb_ether *ue)
+{
+ int error;
+
+ /* check some critical parameters */
+ if ((ue->ue_dev == NULL) ||
+ (ue->ue_udev == NULL) ||
+ (ue->ue_mtx == NULL) ||
+ (ue->ue_methods == NULL))
+ return (EINVAL);
+
+ error = usb_proc_create(&ue->ue_tq, ue->ue_mtx,
+ device_get_nameunit(ue->ue_dev), USB_PRI_MED);
+ if (error) {
+ device_printf(ue->ue_dev, "could not setup taskqueue\n");
+ goto error;
+ }
+
+ /* fork rest of the attach code */
+ UE_LOCK(ue);
+ ue_queue_command(ue, ue_attach_post_task,
+ &ue->ue_sync_task[0].hdr,
+ &ue->ue_sync_task[1].hdr);
+ UE_UNLOCK(ue);
+
+error:
+ return (error);
+}
+
+static void
+ue_attach_post_task(struct usb_proc_msg *_task)
+{
+ struct usb_ether_cfg_task *task =
+ (struct usb_ether_cfg_task *)_task;
+ struct usb_ether *ue = task->ue;
+ struct ifnet *ifp;
+ int error;
+ char num[14]; /* sufficient for 32 bits */
+
+ /* first call driver's post attach routine */
+ ue->ue_methods->ue_attach_post(ue);
+
+ UE_UNLOCK(ue);
+
+ ue->ue_unit = alloc_unr(ueunit);
+ usb_callout_init_mtx(&ue->ue_watchdog, ue->ue_mtx, 0);
+ sysctl_ctx_init(&ue->ue_sysctl_ctx);
+
+ error = 0;
+ CURVNET_SET_QUIET(vnet0);
+ ifp = if_alloc(IFT_ETHER);
+ if (ifp == NULL) {
+ device_printf(ue->ue_dev, "could not allocate ifnet\n");
+ goto fail;
+ }
+
+ ifp->if_softc = ue;
+ if_initname(ifp, "ue", ue->ue_unit);
+ if (ue->ue_methods->ue_attach_post_sub != NULL) {
+ ue->ue_ifp = ifp;
+ error = ue->ue_methods->ue_attach_post_sub(ue);
+ } else {
+ ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
+ if (ue->ue_methods->ue_ioctl != NULL)
+ ifp->if_ioctl = ue->ue_methods->ue_ioctl;
+ else
+ ifp->if_ioctl = uether_ioctl;
+ ifp->if_start = ue_start;
+ ifp->if_init = ue_init;
+ IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
+ ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
+ IFQ_SET_READY(&ifp->if_snd);
+ ue->ue_ifp = ifp;
+
+ if (ue->ue_methods->ue_mii_upd != NULL &&
+ ue->ue_methods->ue_mii_sts != NULL) {
+ /* device_xxx() depends on this */
+ mtx_lock(&Giant);
+ error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp,
+ ue_ifmedia_upd, ue->ue_methods->ue_mii_sts,
+ BMSR_DEFCAPMASK, MII_PHY_ANY, MII_OFFSET_ANY, 0);
+ mtx_unlock(&Giant);
+ }
+ }
+
+ if (error) {
+ device_printf(ue->ue_dev, "attaching PHYs failed\n");
+ goto fail;
+ }
+
+ if_printf(ifp, "<USB Ethernet> on %s\n",
device_get_nameunit(ue->ue_dev));
+ ether_ifattach(ifp, ue->ue_eaddr);
+ /* Tell upper layer we support VLAN oversized frames. */
+ if (ifp->if_capabilities & IFCAP_VLAN_MTU)
+ ifp->if_hdrlen = sizeof(struct ether_vlan_header);
+
+ CURVNET_RESTORE();
+
+ snprintf(num, sizeof(num), "%u", ue->ue_unit);
+ ue->ue_sysctl_oid = SYSCTL_ADD_NODE(&ue->ue_sysctl_ctx,
+ &SYSCTL_NODE_CHILDREN(_net, ue),
+ OID_AUTO, num, CTLFLAG_RD, NULL, "");
+ SYSCTL_ADD_PROC(&ue->ue_sysctl_ctx,
+ SYSCTL_CHILDREN(ue->ue_sysctl_oid), OID_AUTO,
+ "%parent", CTLTYPE_STRING | CTLFLAG_RD, ue, 0,
+ ue_sysctl_parent, "A", "parent device");
+
+ UE_LOCK(ue);
+ return;
+
+fail:
+ CURVNET_RESTORE();
+ free_unr(ueunit, ue->ue_unit);
+ if (ue->ue_ifp != NULL) {
+ if_free(ue->ue_ifp);
+ ue->ue_ifp = NULL;
+ }
+ UE_LOCK(ue);
+ return;
+}
+
+void
+uether_ifdetach(struct usb_ether *ue)
+{
+ struct ifnet *ifp;
+
+ /* wait for any post attach or other command to complete */
+ usb_proc_drain(&ue->ue_tq);
+
+ /* read "ifnet" pointer after taskqueue drain */
+ ifp = ue->ue_ifp;
+
+ if (ifp != NULL) {
+
+ /* we are not running any more */
+ UE_LOCK(ue);
+ ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
+ UE_UNLOCK(ue);
+
+ /* drain any callouts */
+ usb_callout_drain(&ue->ue_watchdog);
+
+ /* detach miibus */
+ if (ue->ue_miibus != NULL) {
+ mtx_lock(&Giant); /* device_xxx() depends on this
*/
+ device_delete_child(ue->ue_dev, ue->ue_miibus);
+ mtx_unlock(&Giant);
+ }
+
+ /* detach ethernet */
+ ether_ifdetach(ifp);
+
+ /* free interface instance */
+ if_free(ifp);
+
+ /* free sysctl */
+ sysctl_ctx_free(&ue->ue_sysctl_ctx);
+
+ /* free unit */
+ free_unr(ueunit, ue->ue_unit);
+ }
+
+ /* free taskqueue, if any */
+ usb_proc_free(&ue->ue_tq);
+}
+
+uint8_t
+uether_is_gone(struct usb_ether *ue)
+{
+ return (usb_proc_is_gone(&ue->ue_tq));
+}
+
+void
+uether_init(void *arg)
+{
+
+ ue_init(arg);
+}
+
+static void
+ue_init(void *arg)
+{
+ struct usb_ether *ue = arg;
+
+ UE_LOCK(ue);
+ ue_queue_command(ue, ue_start_task,
+ &ue->ue_sync_task[0].hdr,
+ &ue->ue_sync_task[1].hdr);
+ UE_UNLOCK(ue);
+}
+
+static void
+ue_start_task(struct usb_proc_msg *_task)
+{
+ struct usb_ether_cfg_task *task =
+ (struct usb_ether_cfg_task *)_task;
+ struct usb_ether *ue = task->ue;
+ struct ifnet *ifp = ue->ue_ifp;
+
+ UE_LOCK_ASSERT(ue, MA_OWNED);
+
+ ue->ue_methods->ue_init(ue);
+
+ if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
+ return;
+
+ if (ue->ue_methods->ue_tick != NULL)
+ usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue);
+}
+
+static void
+ue_stop_task(struct usb_proc_msg *_task)
+{
+ struct usb_ether_cfg_task *task =
+ (struct usb_ether_cfg_task *)_task;
+ struct usb_ether *ue = task->ue;
+
+ UE_LOCK_ASSERT(ue, MA_OWNED);
+
+ usb_callout_stop(&ue->ue_watchdog);
+
+ ue->ue_methods->ue_stop(ue);
+}
+
+void
+uether_start(struct ifnet *ifp)
+{
+
+ ue_start(ifp);
+}
+
+static void
+ue_start(struct ifnet *ifp)
+{
+ struct usb_ether *ue = ifp->if_softc;
+
+ if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
+ return;
+
+ UE_LOCK(ue);
+ ue->ue_methods->ue_start(ue);
+ UE_UNLOCK(ue);
+}
+
+static void
+ue_promisc_task(struct usb_proc_msg *_task)
+{
+ struct usb_ether_cfg_task *task =
+ (struct usb_ether_cfg_task *)_task;
+ struct usb_ether *ue = task->ue;
+
+ ue->ue_methods->ue_setpromisc(ue);
+}
+
+static void
+ue_setmulti_task(struct usb_proc_msg *_task)
+{
+ struct usb_ether_cfg_task *task =
+ (struct usb_ether_cfg_task *)_task;
+ struct usb_ether *ue = task->ue;
+
+ ue->ue_methods->ue_setmulti(ue);
+}
+
+int
+uether_ifmedia_upd(struct ifnet *ifp)
+{
+
+ return (ue_ifmedia_upd(ifp));
+}
+
+static int
+ue_ifmedia_upd(struct ifnet *ifp)
+{
+ struct usb_ether *ue = ifp->if_softc;
+
+ /* Defer to process context */
+ UE_LOCK(ue);
+ ue_queue_command(ue, ue_ifmedia_task,
+ &ue->ue_media_task[0].hdr,
+ &ue->ue_media_task[1].hdr);
+ UE_UNLOCK(ue);
+
+ return (0);
+}
+
+static void
+ue_ifmedia_task(struct usb_proc_msg *_task)
+{
+ struct usb_ether_cfg_task *task =
+ (struct usb_ether_cfg_task *)_task;
+ struct usb_ether *ue = task->ue;
+ struct ifnet *ifp = ue->ue_ifp;
+
+ ue->ue_methods->ue_mii_upd(ifp);
+}
+
+static void
+ue_watchdog(void *arg)
+{
+ struct usb_ether *ue = arg;
+ struct ifnet *ifp = ue->ue_ifp;
+
+ if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
+ return;
+
+ ue_queue_command(ue, ue_tick_task,
+ &ue->ue_tick_task[0].hdr,
+ &ue->ue_tick_task[1].hdr);
+
+ usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue);
+}
+
+static void
+ue_tick_task(struct usb_proc_msg *_task)
+{
+ struct usb_ether_cfg_task *task =
+ (struct usb_ether_cfg_task *)_task;
+ struct usb_ether *ue = task->ue;
+ struct ifnet *ifp = ue->ue_ifp;
+
+ if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
+ return;
+
+ ue->ue_methods->ue_tick(ue);
+}
+
+int
+uether_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
+{
+ struct usb_ether *ue = ifp->if_softc;
+ struct ifreq *ifr = (struct ifreq *)data;
+ struct mii_data *mii;
+ int error = 0;
+
+ switch (command) {
+ case SIOCSIFFLAGS:
+ UE_LOCK(ue);
+ if (ifp->if_flags & IFF_UP) {
+ if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+ ue_queue_command(ue, ue_promisc_task,
+ &ue->ue_promisc_task[0].hdr,
+ &ue->ue_promisc_task[1].hdr);
+ else
+ ue_queue_command(ue, ue_start_task,
+ &ue->ue_sync_task[0].hdr,
+ &ue->ue_sync_task[1].hdr);
+ } else {
+ ue_queue_command(ue, ue_stop_task,
+ &ue->ue_sync_task[0].hdr,
+ &ue->ue_sync_task[1].hdr);
+ }
+ UE_UNLOCK(ue);
+ break;
+ case SIOCADDMULTI:
+ case SIOCDELMULTI:
+ UE_LOCK(ue);
+ ue_queue_command(ue, ue_setmulti_task,
+ &ue->ue_multi_task[0].hdr,
+ &ue->ue_multi_task[1].hdr);
+ UE_UNLOCK(ue);
+ break;
+ case SIOCGIFMEDIA:
+ case SIOCSIFMEDIA:
+ if (ue->ue_miibus != NULL) {
+ mii = device_get_softc(ue->ue_miibus);
+ error = ifmedia_ioctl(ifp, ifr, &mii->mii_media,
command);
+ } else
+ error = ether_ioctl(ifp, command, data);
+ break;
+ default:
+ error = ether_ioctl(ifp, command, data);
+ break;
+ }
+ return (error);
+}
+
+static int
+uether_modevent(module_t mod, int type, void *data)
+{
+
+ switch (type) {
+ case MOD_LOAD:
+ ueunit = new_unrhdr(0, INT_MAX, NULL);
+ break;
+ case MOD_UNLOAD:
+ break;
+ default:
+ return (EOPNOTSUPP);
+ }
+ return (0);
+}
+static moduledata_t uether_mod = {
+ "uether",
+ uether_modevent,
+ 0
+};
+
+struct mbuf *
+uether_newbuf(void)
+{
+ struct mbuf *m_new;
+
+ m_new = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
+ if (m_new == NULL)
+ return (NULL);
+ m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
+
+ m_adj(m_new, ETHER_ALIGN);
+ return (m_new);
+}
+
+int
+uether_rxmbuf(struct usb_ether *ue, struct mbuf *m,
+ unsigned int len)
+{
+ struct ifnet *ifp = ue->ue_ifp;
+
+ UE_LOCK_ASSERT(ue, MA_OWNED);
+
+ /* finalize mbuf */
+#ifndef __rtems__
+ if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
+#else /* __rtems__ */
+ ifp->if_ipackets++;
+#endif /* __rtems__ */
+ m->m_pkthdr.rcvif = ifp;
+ m->m_pkthdr.len = m->m_len = len;
+
+ /* enqueue for later when the lock can be released */
+ _IF_ENQUEUE(&ue->ue_rxq, m);
+ return (0);
+}
+
+int
+uether_rxbuf(struct usb_ether *ue, struct usb_page_cache *pc,
+ unsigned int offset, unsigned int len)
+{
+ struct ifnet *ifp = ue->ue_ifp;
+ struct mbuf *m;
+
+ UE_LOCK_ASSERT(ue, MA_OWNED);
+
+ if (len < ETHER_HDR_LEN || len > MCLBYTES - ETHER_ALIGN)
+ return (1);
+
+ m = uether_newbuf();
+ if (m == NULL) {
+ #ifndef __rtems__
+ if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
+ #else /* __rtems__ */
+ ifp->if_iqdrops++;
+ #endif /* __rtems__ */
+ return (ENOMEM);
+ }
+
+ usbd_copy_out(pc, offset, mtod(m, uint8_t *), len);
+
+ /* finalize mbuf */
+#ifndef __rtems__
+ if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
+#else /* __rtems__ */
+ ifp->if_ipackets++;
+#endif /* __rtems__ */
+ m->m_pkthdr.rcvif = ifp;
+ m->m_pkthdr.len = m->m_len = len;
+
+ /* enqueue for later when the lock can be released */
+ _IF_ENQUEUE(&ue->ue_rxq, m);
+ return (0);
+}
+
+void
+uether_rxflush(struct usb_ether *ue)
+{
+ struct ifnet *ifp = ue->ue_ifp;
+ struct mbuf *m;
+
+ UE_LOCK_ASSERT(ue, MA_OWNED);
+
+ for (;;) {
+ _IF_DEQUEUE(&ue->ue_rxq, m);
+ if (m == NULL)
+ break;
+
+ /*
+ * The USB xfer has been resubmitted so its safe to unlock now.
+ */
+ UE_UNLOCK(ue);
+ ifp->if_input(ifp, m);
+ UE_LOCK(ue);
+ }
+}
+
+DECLARE_MODULE(uether, uether_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
+MODULE_VERSION(uether, 1);
diff --git a/freebsd/sys/dev/usb/net/usb_ethernet.h
b/freebsd/sys/dev/usb/net/usb_ethernet.h
new file mode 100644
index 0000000..09a48e2
--- /dev/null
+++ b/freebsd/sys/dev/usb/net/usb_ethernet.h
@@ -0,0 +1,127 @@
+/* $FreeBSD$ */
+/*-
+ * Copyright (c) 2008 Hans Petter Selasky. 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 AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _USB_ETHERNET_H_
+#define _USB_ETHERNET_H_
+
+#include <rtems/bsd/local/opt_inet.h>
+
+#include <rtems/bsd/sys/param.h>
+#include <sys/systm.h>
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#include <sys/limits.h>
+
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/if_dl.h>
+#include <net/if_media.h>
+#include <net/if_types.h>
+#include <net/bpf.h>
+#include <net/ethernet.h>
+
+#include <rtems/bsd/local/miibus_if.h>
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+
+struct usb_ether;
+struct usb_device_request;
+
+typedef void (uether_fn_t)(struct usb_ether *);
+
+struct usb_ether_methods {
+ uether_fn_t *ue_attach_post;
+ uether_fn_t *ue_start;
+ uether_fn_t *ue_init;
+ uether_fn_t *ue_stop;
+ uether_fn_t *ue_setmulti;
+ uether_fn_t *ue_setpromisc;
+ uether_fn_t *ue_tick;
+ int (*ue_mii_upd)(struct ifnet *);
+ void (*ue_mii_sts)(struct ifnet *,
+ struct ifmediareq *);
+ int (*ue_ioctl)(struct ifnet *, u_long, caddr_t);
+ int (*ue_attach_post_sub)(struct usb_ether *);
+};
+
+struct usb_ether_cfg_task {
+ struct usb_proc_msg hdr;
+ struct usb_ether *ue;
+};
+
+struct usb_ether {
+ /* NOTE: the "ue_ifp" pointer must be first --hps */
+ struct ifnet *ue_ifp;
+ struct mtx *ue_mtx;
+ const struct usb_ether_methods *ue_methods;
+ struct sysctl_oid *ue_sysctl_oid;
+ void *ue_sc;
+ struct usb_device *ue_udev; /* used by uether_do_request() */
+ device_t ue_dev;
+ device_t ue_miibus;
+
+ struct usb_process ue_tq;
+ struct sysctl_ctx_list ue_sysctl_ctx;
+ struct ifqueue ue_rxq;
+ struct usb_callout ue_watchdog;
+ struct usb_ether_cfg_task ue_sync_task[2];
+ struct usb_ether_cfg_task ue_media_task[2];
+ struct usb_ether_cfg_task ue_multi_task[2];
+ struct usb_ether_cfg_task ue_promisc_task[2];
+ struct usb_ether_cfg_task ue_tick_task[2];
+
+ int ue_unit;
+
+ /* ethernet address from eeprom */
+ uint8_t ue_eaddr[ETHER_ADDR_LEN];
+};
+
+#define uether_do_request(ue,req,data,timo) \
+ usbd_do_request_proc((ue)->ue_udev,&(ue)->ue_tq,req,data,0,NULL,timo)
+
+uint8_t uether_pause(struct usb_ether *, unsigned int);
+struct ifnet *uether_getifp(struct usb_ether *);
+struct mii_data *uether_getmii(struct usb_ether *);
+void *uether_getsc(struct usb_ether *);
+int uether_ifattach(struct usb_ether *);
+void uether_ifdetach(struct usb_ether *);
+int uether_ifmedia_upd(struct ifnet *);
+void uether_init(void *);
+int uether_ioctl(struct ifnet *, u_long, caddr_t);
+struct mbuf *uether_newbuf(void);
+int uether_rxmbuf(struct usb_ether *, struct mbuf *,
+ unsigned int);
+int uether_rxbuf(struct usb_ether *,
+ struct usb_page_cache *,
+ unsigned int, unsigned int);
+void uether_rxflush(struct usb_ether *);
+uint8_t uether_is_gone(struct usb_ether *);
+void uether_start(struct ifnet *);
+#endif /* _USB_ETHERNET_H_ */
diff --git a/freebsd/sys/dev/usb/usb_busdma.c b/freebsd/sys/dev/usb/usb_busdma.c
index 52af608..69d113c 100644
--- a/freebsd/sys/dev/usb/usb_busdma.c
+++ b/freebsd/sys/dev/usb/usb_busdma.c
@@ -225,7 +225,7 @@ usbd_copy_in_user(struct usb_page_cache *cache,
usb_frlength_t offset,
/*------------------------------------------------------------------------*
* usbd_m_copy_in - copy a mbuf chain directly into DMA-able memory
*------------------------------------------------------------------------*/
-#if USB_HAVE_MBUF
+// #if USB_HAVE_MBUF
struct usb_m_copy_in_arg {
struct usb_page_cache *cache;
usb_frlength_t dst_offset;
@@ -248,7 +248,7 @@ usbd_m_copy_in(struct usb_page_cache *cache, usb_frlength_t
dst_offset,
struct usb_m_copy_in_arg arg = {cache, dst_offset};
(void) m_apply(m, src_offset, src_len, &usbd_m_copy_in_cb, &arg);
}
-#endif
+// #endif
/*------------------------------------------------------------------------*
* usb_uiomove - factored out code
diff --git a/freebsd/sys/sys/sysctl.h b/freebsd/sys/sys/sysctl.h
index cfbbc7f..c5081c5 100644
--- a/freebsd/sys/sys/sysctl.h
+++ b/freebsd/sys/sys/sysctl.h
@@ -186,6 +186,7 @@ struct sysctl_oid {
#define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
#define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
+#define SYSCTL_OUT_STR(r, p) (r->oldfunc)(r, p, strlen(p) + 1)
int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
int sysctl_msec_to_ticks(SYSCTL_HANDLER_ARGS);
diff --git a/libbsd.py b/libbsd.py
index d65213d..90f7504 100755
--- a/libbsd.py
+++ b/libbsd.py
@@ -611,13 +611,15 @@ def dev_usb_net(mm):
[
'sys/dev/mii/mii.h',
'sys/dev/mii/miivar.h',
- 'sys/dev/usb/net/if_cdcereg.h',
+ # 'sys/dev/usb/net/if_cdcereg.h',
+ 'sys/dev/usb/net/if_smscreg.h',
'sys/dev/usb/net/usb_ethernet.h',
]
)
mod.addKernelSpaceSourceFiles(
[
- 'sys/dev/usb/net/if_cdce.c',
+ # 'sys/dev/usb/net/if_cdce.c',
+ 'sys/dev/usb/net/if_smsc.c',
'sys/dev/usb/net/usb_ethernet.c',
],
mm.generator['source']()
@@ -2639,7 +2641,7 @@ def sources(mm):
#mm.addModule(dev_usb_input(mm))
#mm.addModule(dev_usb_mouse(mm))
#mm.addModule(dev_usb_serial(mm))
- #mm.addModule(dev_usb_net(mm))
+ mm.addModule(dev_usb_net(mm))
#mm.addModule(dev_usb_wlan(mm))
mm.addModule(cam(mm))
diff --git a/libbsd_waf.py b/libbsd_waf.py
index 70167d9..d5f3f14 100644
--- a/libbsd_waf.py
+++ b/libbsd_waf.py
@@ -764,6 +764,8 @@ def build(bld):
'freebsd/sys/dev/usb/controller/ehci.c',
'freebsd/sys/dev/usb/controller/ohci.c',
'freebsd/sys/dev/usb/controller/usb_controller.c',
+ 'freebsd/sys/dev/usb/net/if_smsc.c',
+ 'freebsd/sys/dev/usb/net/usb_ethernet.c',
'freebsd/sys/dev/usb/quirk/usb_quirk.c',
'freebsd/sys/dev/usb/storage/umass.c',
'freebsd/sys/dev/usb/usb_busdma.c',
diff --git a/rtemsbsd/include/bsp/nexus-devices.h
b/rtemsbsd/include/bsp/nexus-devices.h
index 67be411..e952466 100644
--- a/rtemsbsd/include/bsp/nexus-devices.h
+++ b/rtemsbsd/include/bsp/nexus-devices.h
@@ -143,11 +143,11 @@ static const rtems_bsd_device_resource
bcm283x_dwcotg_res[] = {
{
.type = RTEMS_BSD_RES_MEMORY,
.start_request = 0,
- .start_actual = 0x20980000
+ .start_actual = BCM2835_USB_BASE
}, {
.type = RTEMS_BSD_RES_IRQ,
.start_request = 0,
- .start_actual = 17
+ .start_actual = BCM2835_IRQ_ID_USB
}
};
@@ -155,6 +155,19 @@ RTEMS_BSD_DEFINE_NEXUS_DEVICE(bcm283x_dwcotg, 0,
RTEMS_ARRAY_SIZE(bcm283x_dwcotg
&bcm283x_dwcotg_res[0]);
SYSINIT_DRIVER_REFERENCE(bcm283x_dwcotg, nexus);
+SYSINIT_DRIVER_REFERENCE(dwcotg, usbus);
+SYSINIT_DRIVER_REFERENCE(uhub, usbus);
+SYSINIT_DRIVER_REFERENCE(umass, uhub);
+
+SYSINIT_DRIVER_REFERENCE(smsc, usbus);
+SYSINIT_DRIVER_REFERENCE(miibus, smsc);
+SYSINIT_DRIVER_REFERENCE(ukphy, miibus);
+SYSINIT_DRIVER_REFERENCE(uether, smsc);
+
+SYSINIT_DRIVER_REFERENCE(usb, smsc);
+SYSINIT_DRIVER_REFERENCE(ether, smsc);
+
+
#elif defined(LIBBSP_I386_PC386_BSP_H)
RTEMS_BSD_DEFINE_NEXUS_DEVICE(legacy, 0, 0, NULL);
diff --git a/testsuite/include/rtems/bsd/test/network-config.h.in
b/testsuite/include/rtems/bsd/test/network-config.h.in
index c652e74..7e74ad8 100644
--- a/testsuite/include/rtems/bsd/test/network-config.h.in
+++ b/testsuite/include/rtems/bsd/test/network-config.h.in
@@ -42,6 +42,8 @@
#define NET_CFG_INTERFACE_0 "cgem0"
#elif defined(LIBBSP_M68K_GENMCF548X_BSP_H)
#define NET_CFG_INTERFACE_0 "fec0"
+#elif defined(LIBBSP_ARM_RASPBERRYPI_BSP_H)
+ #define NET_CFG_INTERFACE_0 "ue0"
#else
#define NET_CFG_INTERFACE_0 "lo0"
#endif
--
1.9.1
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