--- /dev/null
+/*
+ * Copyright (C) 2016 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ *
+ * You can also choose to distribute this program under the terms of
+ * the Unmodified Binary Distribution Licence (as given in the file
+ * COPYING.UBDL), provided that you have satisfied its requirements.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <ipxe/netdevice.h>
+#include <ipxe/ethernet.h>
+#include <ipxe/if_ether.h>
+#include <ipxe/profile.h>
+#include <ipxe/usb.h>
+#include "axge.h"
+
+/** @file
+ *
+ * Asix 10/100/1000 USB Ethernet driver
+ *
+ * Large chunks of functionality are undocumented in the available
+ * datasheets. The gaps are deduced from combinations of the Linux
+ * driver, the FreeBSD driver, and experimentation with the hardware.
+ */
+
+/** Interrupt completion profiler */
+static struct profiler axge_intr_profiler __profiler =
+ { .name = "axge.intr" };
+
+/** Bulk IN completion profiler */
+static struct profiler axge_in_profiler __profiler =
+ { .name = "axge.in" };
+
+/** Bulk OUT profiler */
+static struct profiler axge_out_profiler __profiler =
+ { .name = "axge.out" };
+
+/** Default bulk IN configuration
+ *
+ * The Linux and FreeBSD drivers have set of magic constants which are
+ * chosen based on both the Ethernet and USB link speeds.
+ *
+ * Experimentation shows that setting the "timer" value to zero seems
+ * to prevent the device from ever coalescing multiple packets into a
+ * single bulk IN transfer. This allows us to get away with using a
+ * 2kB receive I/O buffer and a zerocopy receive path.
+ */
+static struct axge_bulk_in_control axge_bicr = {
+ .ctrl = 7,
+ .timer = cpu_to_le16 ( 0 ),
+ .size = 0,
+ .ifg = 0,
+};
+
+/******************************************************************************
+ *
+ * Register access
+ *
+ ******************************************************************************
+ */
+
+/**
+ * Read register
+ *
+ * @v asix AXGE device
+ * @v offset Register offset
+ * @v data Data buffer
+ * @v len Length of data
+ * @ret rc Return status code
+ */
+static inline int axge_read_register ( struct axge_device *axge,
+ unsigned int offset, void *data,
+ size_t len ) {
+
+ return usb_control ( axge->usb, AXGE_READ_MAC_REGISTER,
+ offset, len, data, len );
+}
+
+/**
+ * Read one-byte register
+ *
+ * @v asix AXGE device
+ * @v offset Register offset
+ * @v value Value to fill in
+ * @ret rc Return status code
+ */
+static inline int axge_read_byte ( struct axge_device *axge,
+ unsigned int offset, uint8_t *value ) {
+
+ return axge_read_register ( axge, offset, value, sizeof ( *value ) );
+}
+
+/**
+ * Read two-byte register
+ *
+ * @v asix AXGE device
+ * @v offset Register offset
+ * @v value Value to fill in
+ * @ret rc Return status code
+ */
+static inline int axge_read_word ( struct axge_device *axge,
+ unsigned int offset, uint16_t *value ) {
+
+ return axge_read_register ( axge, offset, value, sizeof ( *value ) );
+}
+
+/**
+ * Read four-byte register
+ *
+ * @v asix AXGE device
+ * @v offset Register offset
+ * @v value Value to fill in
+ * @ret rc Return status code
+ */
+static inline int axge_read_dword ( struct axge_device *axge,
+ unsigned int offset, uint32_t *value ) {
+
+ return axge_read_register ( axge, offset, value, sizeof ( *value ) );
+}
+
+/**
+ * Write register
+ *
+ * @v asix AXGE device
+ * @v offset Register offset
+ * @v data Data buffer
+ * @v len Length of data
+ * @ret rc Return status code
+ */
+static inline int axge_write_register ( struct axge_device *axge,
+ unsigned int offset, void *data,
+ size_t len ) {
+
+ return usb_control ( axge->usb, AXGE_WRITE_MAC_REGISTER,
+ offset, len, data, len );
+}
+
+/**
+ * Write one-byte register
+ *
+ * @v asix AXGE device
+ * @v offset Register offset
+ * @v value Value
+ * @ret rc Return status code
+ */
+static inline int axge_write_byte ( struct axge_device *axge,
+ unsigned int offset, uint8_t value ) {
+
+ return axge_write_register ( axge, offset, &value, sizeof ( value ));
+}
+
+/**
+ * Write two-byte register
+ *
+ * @v asix AXGE device
+ * @v offset Register offset
+ * @v value Value
+ * @ret rc Return status code
+ */
+static inline int axge_write_word ( struct axge_device *axge,
+ unsigned int offset, uint16_t value ) {
+
+ return axge_write_register ( axge, offset, &value, sizeof ( value ));
+}
+
+/**
+ * Write one-byte register
+ *
+ * @v asix AXGE device
+ * @v offset Register offset
+ * @v value Value
+ * @ret rc Return status code
+ */
+static inline int axge_write_dword ( struct axge_device *axge,
+ unsigned int offset, uint32_t value ) {
+
+ return axge_write_register ( axge, offset, &value, sizeof ( value ));
+}
+
+/******************************************************************************
+ *
+ * Link status
+ *
+ ******************************************************************************
+ */
+
+/**
+ * Get link status
+ *
+ * @v asix AXGE device
+ * @ret rc Return status code
+ */
+static int axge_check_link ( struct axge_device *axge ) {
+ struct net_device *netdev = axge->netdev;
+ uint8_t plsr;
+ int rc;
+
+ /* Read physical link status register */
+ if ( ( rc = axge_read_byte ( axge, AXGE_PLSR, &plsr ) ) != 0 ) {
+ DBGC ( axge, "AXGE %p could not read PLSR: %s\n",
+ axge, strerror ( rc ) );
+ return rc;
+ }
+
+ /* Update link status */
+ if ( plsr & AXGE_PLSR_EPHY_ANY ) {
+ DBGC ( axge, "AXGE %p link up (PLSR %02x)\n", axge, plsr );
+ netdev_link_up ( netdev );
+ } else {
+ DBGC ( axge, "AXGE %p link down (PLSR %02x)\n", axge, plsr );
+ netdev_link_down ( netdev );
+ }
+
+ return 0;
+}
+
+/******************************************************************************
+ *
+ * AXGE communications interface
+ *
+ ******************************************************************************
+ */
+
+/**
+ * Complete interrupt transfer
+ *
+ * @v ep USB endpoint
+ * @v iobuf I/O buffer
+ * @v rc Completion status code
+ */
+static void axge_intr_complete ( struct usb_endpoint *ep,
+ struct io_buffer *iobuf, int rc ) {
+ struct axge_device *axge = container_of ( ep, struct axge_device,
+ usbnet.intr );
+ struct net_device *netdev = axge->netdev;
+ struct axge_interrupt *intr;
+ size_t len = iob_len ( iobuf );
+ unsigned int link_ok;
+
+ /* Profile completions */
+ profile_start ( &axge_intr_profiler );
+
+ /* Ignore packets cancelled when the endpoint closes */
+ if ( ! ep->open )
+ goto ignore;
+
+ /* Drop packets with errors */
+ if ( rc != 0 ) {
+ DBGC ( axge, "AXGE %p interrupt failed: %s\n",
+ axge, strerror ( rc ) );
+ DBGC_HDA ( axge, 0, iobuf->data, iob_len ( iobuf ) );
+ goto error;
+ }
+
+ /* Extract message header */
+ if ( len < sizeof ( *intr ) ) {
+ DBGC ( axge, "AXGE %p underlength interrupt:\n", axge );
+ DBGC_HDA ( axge, 0, iobuf->data, iob_len ( iobuf ) );
+ rc = -EINVAL;
+ goto error;
+ }
+ intr = iobuf->data;
+
+ /* Check magic signature */
+ if ( intr->magic != cpu_to_le16 ( AXGE_INTR_MAGIC ) ) {
+ DBGC ( axge, "AXGE %p malformed interrupt:\n", axge );
+ DBGC_HDA ( axge, 0, iobuf->data, iob_len ( iobuf ) );
+ rc = -EINVAL;
+ goto error;
+ }
+
+ /* Extract link status */
+ link_ok = ( intr->link & cpu_to_le16 ( AXGE_INTR_LINK_PPLS ) );
+ if ( link_ok && ! netdev_link_ok ( netdev ) ) {
+ DBGC ( axge, "AXGE %p link up\n", axge );
+ netdev_link_up ( netdev );
+ } else if ( netdev_link_ok ( netdev ) && ! link_ok ) {
+ DBGC ( axge, "AXGE %p link down\n", axge );
+ netdev_link_down ( netdev );
+ }
+
+ /* Free I/O buffer */
+ free_iob ( iobuf );
+ profile_stop ( &axge_intr_profiler );
+
+ return;
+
+ error:
+ netdev_rx_err ( netdev, iob_disown ( iobuf ), rc );
+ ignore:
+ free_iob ( iobuf );
+ return;
+}
+
+/** Interrupt endpoint operations */
+static struct usb_endpoint_driver_operations axge_intr_operations = {
+ .complete = axge_intr_complete,
+};
+
+/******************************************************************************
+ *
+ * AXGE data interface
+ *
+ ******************************************************************************
+ */
+
+/**
+ * Complete bulk IN transfer
+ *
+ * @v ep USB endpoint
+ * @v iobuf I/O buffer
+ * @v rc Completion status code
+ */
+static void axge_in_complete ( struct usb_endpoint *ep,
+ struct io_buffer *iobuf, int rc ) {
+ struct axge_device *axge = container_of ( ep, struct axge_device,
+ usbnet.in );
+ struct net_device *netdev = axge->netdev;
+ struct axge_rx_footer *ftr;
+ struct axge_rx_descriptor *desc;
+ struct io_buffer *pkt;
+ unsigned int count;
+ unsigned int offset;
+ size_t len;
+ size_t padded_len;
+
+ /* Profile receive completions */
+ profile_start ( &axge_in_profiler );
+
+ /* Ignore packets cancelled when the endpoint closes */
+ if ( ! ep->open )
+ goto ignore;
+
+ /* Record USB errors against the network device */
+ if ( rc != 0 ) {
+ DBGC ( axge, "AXGE %p bulk IN failed: %s\n",
+ axge, strerror ( rc ) );
+ goto error;
+ }
+
+ /* Sanity check */
+ if ( iob_len ( iobuf ) < sizeof ( *ftr ) ) {
+ DBGC ( axge, "AXGE %p underlength bulk IN:\n", axge );
+ DBGC_HDA ( axge, 0, iobuf->data, iob_len ( iobuf ) );
+ rc = -EINVAL;
+ goto error;
+ }
+
+ /* Parse ftr, strip ftr and descriptors */
+ iob_unput ( iobuf, sizeof ( *ftr ) );
+ ftr = ( iobuf->data + iob_len ( iobuf ) );
+ count = le16_to_cpu ( ftr->count );
+ if ( count == 0 ) {
+ DBGC ( axge, "AXGE %p zero-packet bulk IN:\n", axge );
+ DBGC_HDA ( axge, 0, iobuf->data, iob_len ( iobuf ) );
+ goto ignore;
+ }
+ offset = le16_to_cpu ( ftr->offset );
+ if ( ( iob_len ( iobuf ) < offset ) ||
+ ( ( iob_len ( iobuf ) - offset ) < ( count * sizeof ( *desc ) ) )){
+ DBGC ( axge, "AXGE %p malformed bulk IN footer:\n", axge );
+ DBGC_HDA ( axge, 0, iobuf->data, iob_len ( iobuf ) );
+ rc = -EINVAL;
+ goto error;
+ }
+ desc = ( iobuf->data + offset );
+ iob_unput ( iobuf, ( iob_len ( iobuf ) - offset ) );
+
+ /* Process packets */
+ for ( ; count-- ; desc++ ) {
+
+ /* Parse descriptor */
+ len = ( le16_to_cpu ( desc->len_flags ) & AXGE_RX_LEN_MASK );
+ padded_len = ( ( len + AXGE_RX_LEN_PAD_ALIGN - 1 ) &
+ ~( AXGE_RX_LEN_PAD_ALIGN - 1 ) );
+ if ( iob_len ( iobuf ) < padded_len ) {
+ DBGC ( axge, "AXGE %p malformed bulk IN descriptor:\n",
+ axge );
+ DBGC_HDA ( axge, 0, iobuf->data, iob_len ( iobuf ) );
+ rc = -EINVAL;
+ goto error;
+ }
+
+ /* Check for previous dropped packets */
+ if ( desc->len_flags & cpu_to_le16 ( AXGE_RX_CRC_ERROR ) )
+ netdev_rx_err ( netdev, NULL, -EIO );
+ if ( desc->len_flags & cpu_to_le16 ( AXGE_RX_DROP_ERROR ) )
+ netdev_rx_err ( netdev, NULL, -ENOBUFS );
+
+ /* Allocate new I/O buffer, if applicable */
+ if ( count ) {
+
+ /* More packets remain: allocate a new buffer */
+ pkt = alloc_iob ( AXGE_IN_RESERVE + len );
+ if ( ! pkt ) {
+ /* Record error and continue */
+ netdev_rx_err ( netdev, NULL, -ENOMEM );
+ iob_pull ( iobuf, padded_len );
+ continue;
+ }
+ iob_reserve ( pkt, AXGE_IN_RESERVE );
+ memcpy ( iob_put ( pkt, len ), iobuf->data, len );
+ iob_pull ( iobuf, padded_len );
+
+ } else {
+
+ /* This is the last (or only) packet: use this buffer */
+ iob_unput ( iobuf, ( padded_len - len ) );
+ pkt = iob_disown ( iobuf );
+ }
+
+ /* Hand off to network stack */
+ netdev_rx ( netdev, iob_disown ( pkt ) );
+ }
+
+ assert ( iobuf == NULL );
+ profile_stop ( &axge_in_profiler );
+ return;
+
+ error:
+ netdev_rx_err ( netdev, iob_disown ( iobuf ), rc );
+ ignore:
+ free_iob ( iobuf );
+}
+
+/** Bulk IN endpoint operations */
+static struct usb_endpoint_driver_operations axge_in_operations = {
+ .complete = axge_in_complete,
+};
+
+/**
+ * Transmit packet
+ *
+ * @v asix AXGE device
+ * @v iobuf I/O buffer
+ * @ret rc Return status code
+ */
+static int axge_out_transmit ( struct axge_device *axge,
+ struct io_buffer *iobuf ) {
+ struct axge_tx_header *hdr;
+ size_t len = iob_len ( iobuf );
+ int rc;
+
+ /* Profile transmissions */
+ profile_start ( &axge_out_profiler );
+
+ /* Prepend header */
+ if ( ( rc = iob_ensure_headroom ( iobuf, sizeof ( *hdr ) ) ) != 0 )
+ return rc;
+ hdr = iob_push ( iobuf, sizeof ( *hdr ) );
+ hdr->len = cpu_to_le32 ( len );
+ hdr->wtf = 0;
+
+ /* Enqueue I/O buffer */
+ if ( ( rc = usb_stream ( &axge->usbnet.out, iobuf, 0 ) ) != 0 )
+ return rc;
+
+ profile_stop ( &axge_out_profiler );
+ return 0;
+}
+
+/**
+ * Complete bulk OUT transfer
+ *
+ * @v ep USB endpoint
+ * @v iobuf I/O buffer
+ * @v rc Completion status code
+ */
+static void axge_out_complete ( struct usb_endpoint *ep,
+ struct io_buffer *iobuf, int rc ) {
+ struct axge_device *axge = container_of ( ep, struct axge_device,
+ usbnet.out );
+ struct net_device *netdev = axge->netdev;
+
+ /* Report TX completion */
+ netdev_tx_complete_err ( netdev, iobuf, rc );
+}
+
+/** Bulk OUT endpoint operations */
+static struct usb_endpoint_driver_operations axge_out_operations = {
+ .complete = axge_out_complete,
+};
+
+/******************************************************************************
+ *
+ * Network device interface
+ *
+ ******************************************************************************
+ */
+
+/**
+ * Open network device
+ *
+ * @v netdev Network device
+ * @ret rc Return status code
+ */
+static int axge_open ( struct net_device *netdev ) {
+ struct axge_device *axge = netdev->priv;
+ uint16_t rcr;
+ int rc;
+
+ /* Open USB network device */
+ if ( ( rc = usbnet_open ( &axge->usbnet ) ) != 0 ) {
+ DBGC ( axge, "AXGE %p could not open: %s\n",
+ axge, strerror ( rc ) );
+ goto err_open;
+ }
+
+ /* Set MAC address */
+ if ( ( rc = axge_write_register ( axge, AXGE_NIDR,
+ netdev->ll_addr, ETH_ALEN ) ) !=0){
+ DBGC ( axge, "AXGE %p could not set MAC address: %s\n",
+ axge, strerror ( rc ) );
+ goto err_write_mac;
+ }
+
+ /* Enable receiver */
+ rcr = cpu_to_le16 ( AXGE_RCR_PRO | AXGE_RCR_AMALL |
+ AXGE_RCR_AB | AXGE_RCR_SO );
+ if ( ( rc = axge_write_word ( axge, AXGE_RCR, rcr ) ) != 0 ) {
+ DBGC ( axge, "AXGE %p could not write RCR: %s\n",
+ axge, strerror ( rc ) );
+ goto err_write_rcr;
+ }
+
+ /* Update link status */
+ axge_check_link ( axge );
+
+ return 0;
+
+ axge_write_word ( axge, AXGE_RCR, 0 );
+ err_write_rcr:
+ err_write_mac:
+ usbnet_close ( &axge->usbnet );
+ err_open:
+ return rc;
+}
+
+/**
+ * Close network device
+ *
+ * @v netdev Network device
+ */
+static void axge_close ( struct net_device *netdev ) {
+ struct axge_device *axge = netdev->priv;
+
+ /* Disable receiver */
+ axge_write_word ( axge, AXGE_RCR, 0 );
+
+ /* Close USB network device */
+ usbnet_close ( &axge->usbnet );
+}
+
+/**
+ * Transmit packet
+ *
+ * @v netdev Network device
+ * @v iobuf I/O buffer
+ * @ret rc Return status code
+ */
+static int axge_transmit ( struct net_device *netdev,
+ struct io_buffer *iobuf ) {
+ struct axge_device *axge = netdev->priv;
+ int rc;
+
+ /* Transmit packet */
+ if ( ( rc = axge_out_transmit ( axge, iobuf ) ) != 0 )
+ return rc;
+
+ return 0;
+}
+
+/**
+ * Poll for completed and received packets
+ *
+ * @v netdev Network device
+ */
+static void axge_poll ( struct net_device *netdev ) {
+ struct axge_device *axge = netdev->priv;
+ int rc;
+
+ /* Poll USB bus */
+ usb_poll ( axge->bus );
+
+ /* Refill endpoints */
+ if ( ( rc = usbnet_refill ( &axge->usbnet ) ) != 0 )
+ netdev_rx_err ( netdev, NULL, rc );
+}
+
+/** AXGE network device operations */
+static struct net_device_operations axge_operations = {
+ .open = axge_open,
+ .close = axge_close,
+ .transmit = axge_transmit,
+ .poll = axge_poll,
+};
+
+/******************************************************************************
+ *
+ * USB interface
+ *
+ ******************************************************************************
+ */
+
+/**
+ * Probe device
+ *
+ * @v func USB function
+ * @v config Configuration descriptor
+ * @ret rc Return status code
+ */
+static int axge_probe ( struct usb_function *func,
+ struct usb_configuration_descriptor *config ) {
+ struct usb_device *usb = func->usb;
+ struct net_device *netdev;
+ struct axge_device *axge;
+ uint16_t epprcr;
+ uint16_t msr;
+ uint8_t csr;
+ int rc;
+
+ /* Allocate and initialise structure */
+ netdev = alloc_etherdev ( sizeof ( *axge ) );
+ if ( ! netdev ) {
+ rc = -ENOMEM;
+ goto err_alloc;
+ }
+ netdev_init ( netdev, &axge_operations );
+ netdev->dev = &func->dev;
+ axge = netdev->priv;
+ memset ( axge, 0, sizeof ( *axge ) );
+ axge->usb = usb;
+ axge->bus = usb->port->hub->bus;
+ axge->netdev = netdev;
+ usbnet_init ( &axge->usbnet, func, &axge_intr_operations,
+ &axge_in_operations, &axge_out_operations );
+ usb_refill_init ( &axge->usbnet.intr, 0, 0, AXGE_INTR_MAX_FILL );
+ usb_refill_init ( &axge->usbnet.in, AXGE_IN_RESERVE,
+ AXGE_IN_MTU, AXGE_IN_MAX_FILL );
+ DBGC ( axge, "AXGE %p on %s\n", axge, func->name );
+
+ /* Describe USB network device */
+ if ( ( rc = usbnet_describe ( &axge->usbnet, config ) ) != 0 ) {
+ DBGC ( axge, "AXGE %p could not describe: %s\n",
+ axge, strerror ( rc ) );
+ goto err_describe;
+ }
+
+ /* Fetch MAC address */
+ if ( ( rc = axge_read_register ( axge, AXGE_NIDR, netdev->hw_addr,
+ ETH_ALEN ) ) != 0 ) {
+ DBGC ( axge, "AXGE %p could not fetch MAC address: %s\n",
+ axge, strerror ( rc ) );
+ goto err_read_mac;
+ }
+
+ /* Power up PHY */
+ if ( ( rc = axge_write_word ( axge, AXGE_EPPRCR, 0 ) ) != 0 ) {
+ DBGC ( axge, "AXGE %p could not write EPPRCR: %s\n",
+ axge, strerror ( rc ) );
+ goto err_write_epprcr_off;
+ }
+ epprcr = cpu_to_le16 ( AXGE_EPPRCR_IPRL );
+ if ( ( rc = axge_write_word ( axge, AXGE_EPPRCR, epprcr ) ) != 0){
+ DBGC ( axge, "AXGE %p could not write EPPRCR: %s\n",
+ axge, strerror ( rc ) );
+ goto err_write_epprcr_on;
+ }
+ mdelay ( AXGE_EPPRCR_DELAY_MS );
+
+ /* Select clocks */
+ csr = ( AXGE_CSR_BCS | AXGE_CSR_ACS );
+ if ( ( rc = axge_write_byte ( axge, AXGE_CSR, csr ) ) != 0){
+ DBGC ( axge, "AXGE %p could not write CSR: %s\n",
+ axge, strerror ( rc ) );
+ goto err_write_csr;
+ }
+ mdelay ( AXGE_CSR_DELAY_MS );
+
+ /* Configure bulk IN pipeline */
+ if ( ( rc = axge_write_register ( axge, AXGE_BICR, &axge_bicr,
+ sizeof ( axge_bicr ) ) ) != 0 ){
+ DBGC ( axge, "AXGE %p could not write BICR: %s\n",
+ axge, strerror ( rc ) );
+ goto err_write_bicr;
+ }
+
+ /* Set medium status */
+ msr = cpu_to_le16 ( AXGE_MSR_GM | AXGE_MSR_FD | AXGE_MSR_RFC |
+ AXGE_MSR_TFC | AXGE_MSR_RE );
+ if ( ( rc = axge_write_word ( axge, AXGE_MSR, msr ) ) != 0 ) {
+ DBGC ( axge, "AXGE %p could not write MSR: %s\n",
+ axge, strerror ( rc ) );
+ goto err_write_msr;
+ }
+
+ /* Register network device */
+ if ( ( rc = register_netdev ( netdev ) ) != 0 )
+ goto err_register;
+
+ /* Update link status */
+ axge_check_link ( axge );
+
+ usb_func_set_drvdata ( func, axge );
+ return 0;
+
+ unregister_netdev ( netdev );
+ err_register:
+ err_write_msr:
+ err_write_bicr:
+ err_write_csr:
+ err_write_epprcr_on:
+ err_write_epprcr_off:
+ err_read_mac:
+ err_describe:
+ netdev_nullify ( netdev );
+ netdev_put ( netdev );
+ err_alloc:
+ return rc;
+}
+
+/**
+ * Remove device
+ *
+ * @v func USB function
+ */
+static void axge_remove ( struct usb_function *func ) {
+ struct axge_device *axge = usb_func_get_drvdata ( func );
+ struct net_device *netdev = axge->netdev;
+
+ unregister_netdev ( netdev );
+ netdev_nullify ( netdev );
+ netdev_put ( netdev );
+}
+
+/** AXGE device IDs */
+static struct usb_device_id axge_ids[] = {
+ {
+ .name = "ax88179",
+ .vendor = 0x0b95,
+ .product = 0x1790,
+ },
+ {
+ .name = "ax88178a",
+ .vendor = 0x0b95,
+ .product = 0x178a,
+ },
+ {
+ .name = "dub1312",
+ .vendor = 0x2001,
+ .product = 0x4a00,
+ },
+ {
+ .name = "axge-sitecom",
+ .vendor = 0x0df6,
+ .product = 0x0072,
+ },
+ {
+ .name = "axge-samsung",
+ .vendor = 0x04e8,
+ .product = 0xa100,
+ },
+ {
+ .name = "onelinkdock",
+ .vendor = 0x17ef,
+ .product = 0x304b,
+ },
+};
+
+/** AXGE driver */
+struct usb_driver axge_driver __usb_driver = {
+ .ids = axge_ids,
+ .id_count = ( sizeof ( axge_ids ) / sizeof ( axge_ids[0] ) ),
+ .class = USB_CLASS_ID ( USB_ANY_ID, USB_ANY_ID, USB_ANY_ID ),
+ .score = USB_SCORE_NORMAL,
+ .probe = axge_probe,
+ .remove = axge_remove,
+};
projects / thirdparty / ipxe.git / commitdiff
