mirror of https://github.com/ipxe/ipxe.git
[dm96xx] Add driver for Davicom DM96xx USB Ethernet NICs
Signed-off-by: Michael Brown <mcb30@ipxe.org>pull/34/head
Michael Brown
parent
02bf4f16f3
commit
1ae94c903d
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@ -0,0 +1,667 @@
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/*
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* Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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FILE_LICENCE ( GPL2_OR_LATER );
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include <ipxe/ethernet.h>
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#include <ipxe/usb.h>
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#include <ipxe/usbnet.h>
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#include "dm96xx.h"
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/** @file
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*
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* Davicom DM96xx USB Ethernet driver
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*
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*/
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/******************************************************************************
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*
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* Register operations
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*
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******************************************************************************
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*/
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/**
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* Reset device
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*
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* @v dm96xx DM96xx device
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* @ret rc Return status code
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*/
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static int dm96xx_reset ( struct dm96xx_device *dm96xx ) {
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int ncr;
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int rc;
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/* Reset device */
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if ( ( rc = dm96xx_write_register ( dm96xx, DM96XX_NCR,
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DM96XX_NCR_RST ) ) != 0 ) {
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DBGC ( dm96xx, "DM96XX %p could not reset: %s\n",
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dm96xx, strerror ( rc ) );
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return rc;
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}
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/* Wait for reset to complete */
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udelay ( DM96XX_RESET_DELAY_US );
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/* Check that reset has completed */
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ncr = dm96xx_read_register ( dm96xx, DM96XX_NCR );
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if ( ncr < 0 ) {
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rc = ncr;
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DBGC ( dm96xx, "DM96XX %p failed to reset: %s\n",
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dm96xx, strerror ( rc ) );
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return rc;
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}
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if ( ncr & DM96XX_NCR_RST ) {
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DBGC ( dm96xx, "DM96XX %p failed to reset (NCR=%#02x)\n",
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dm96xx, ncr );
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return -EIO;
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}
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return 0;
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}
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/**
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* Read MAC address
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*
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* @v dm96xx DM96xx device
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* @v mac MAC address to fill in
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* @ret rc Return status code
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*/
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static int dm96xx_read_mac ( struct dm96xx_device *dm96xx, uint8_t *mac ) {
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int rc;
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/* Read MAC address */
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if ( ( rc = dm96xx_read_registers ( dm96xx, DM96XX_PAR, mac,
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ETH_ALEN ) ) != 0 ) {
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DBGC ( dm96xx, "DM96XX %p could not read MAC address: %s\n",
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dm96xx, strerror ( rc ) );
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return rc;
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}
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return 0;
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}
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/**
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* Write MAC address
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*
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* @v dm96xx DM96xx device
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* @v mac MAC address
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* @ret rc Return status code
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*/
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static int dm96xx_write_mac ( struct dm96xx_device *dm96xx, uint8_t *mac ) {
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int rc;
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/* Write MAC address */
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if ( ( rc = dm96xx_write_registers ( dm96xx, DM96XX_PAR, mac,
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ETH_ALEN ) ) != 0 ) {
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DBGC ( dm96xx, "DM96XX %p could not write MAC address: %s\n",
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dm96xx, strerror ( rc ) );
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return rc;
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}
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return 0;
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}
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/**
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* Update link status based on network status register
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*
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* @v dm96xx DM96xx device
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* @v nsr Network status register
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*/
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static void dm96xx_link_nsr ( struct dm96xx_device *dm96xx, unsigned int nsr ) {
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struct net_device *netdev = dm96xx->netdev;
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if ( nsr & DM96XX_NSR_LINKST ) {
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if ( ! netdev_link_ok ( netdev ) )
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netdev_link_up ( netdev );
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} else {
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if ( netdev_link_ok ( netdev ) )
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netdev_link_down ( netdev );
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}
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}
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/**
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* Get link status
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*
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* @v dm96xx DM96xx device
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* @ret rc Return status code
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*/
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static int dm96xx_check_link ( struct dm96xx_device *dm96xx ) {
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int nsr;
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int rc;
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/* Read network status register */
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nsr = dm96xx_read_register ( dm96xx, DM96XX_NSR );
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if ( nsr < 0 ) {
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rc = nsr;
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DBGC ( dm96xx, "DM96XX %p could not read network status: %s\n",
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dm96xx, strerror ( rc ) );
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return rc;
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}
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/* Update link status */
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dm96xx_link_nsr ( dm96xx, nsr );
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return 0;
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}
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/**
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* Set DM9601-compatible RX header mode
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*
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* @v dm96xx DM96xx device
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* @ret rc Return status code
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*/
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static int dm96xx_rx_mode ( struct dm96xx_device *dm96xx ) {
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int chipr;
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int mode_ctl;
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int rc;
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/* Get chip revision */
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chipr = dm96xx_read_register ( dm96xx, DM96XX_CHIPR );
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if ( chipr < 0 ) {
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rc = chipr;
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DBGC ( dm96xx, "DM96XX %p could not read chip revision: %s\n",
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dm96xx, strerror ( rc ) );
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return rc;
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}
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/* Do nothing if device is a DM9601 anyway */
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if ( chipr == DM96XX_CHIPR_9601 )
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return 0;
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/* Read current mode control */
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mode_ctl = dm96xx_read_register ( dm96xx, DM96XX_MODE_CTL );
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if ( mode_ctl < 0 ) {
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rc = mode_ctl;
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DBGC ( dm96xx, "DM96XX %p could not read mode control: %s\n",
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dm96xx, strerror ( rc ) );
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return rc;
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}
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/* Write mode control */
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mode_ctl &= ~DM96XX_MODE_CTL_MODE;
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if ( ( rc = dm96xx_write_register ( dm96xx, DM96XX_MODE_CTL,
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mode_ctl ) ) != 0 ) {
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DBGC ( dm96xx, "DM96XX %p could not write mode control: %s\n",
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dm96xx, strerror ( rc ) );
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return rc;
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}
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return 0;
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}
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/******************************************************************************
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*
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* Endpoint operations
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*
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******************************************************************************
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*/
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/**
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* Complete interrupt transfer
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*
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* @v ep USB endpoint
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* @v iobuf I/O buffer
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* @v rc Completion status code
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*/
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static void dm96xx_intr_complete ( struct usb_endpoint *ep,
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struct io_buffer *iobuf, int rc ) {
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struct dm96xx_device *dm96xx = container_of ( ep, struct dm96xx_device,
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usbnet.intr );
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struct net_device *netdev = dm96xx->netdev;
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struct dm96xx_interrupt *intr;
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size_t len = iob_len ( iobuf );
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/* Ignore packets cancelled when the endpoint closes */
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if ( ! ep->open )
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goto done;
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/* Record USB errors against the network device */
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if ( rc != 0 ) {
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DBGC ( dm96xx, "DM96XX %p interrupt failed: %s\n",
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dm96xx, strerror ( rc ) );
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DBGC_HDA ( dm96xx, 0, iobuf->data, iob_len ( iobuf ) );
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netdev_rx_err ( netdev, NULL, rc );
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goto done;
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}
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/* Extract message header */
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if ( len < sizeof ( *intr ) ) {
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DBGC ( dm96xx, "DM96XX %p underlength interrupt:\n", dm96xx );
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DBGC_HDA ( dm96xx, 0, iobuf->data, iob_len ( iobuf ) );
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netdev_rx_err ( netdev, NULL, -EINVAL );
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goto done;
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}
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intr = iobuf->data;
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/* Update link status */
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dm96xx_link_nsr ( dm96xx, intr->nsr );
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done:
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/* Free I/O buffer */
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free_iob ( iobuf );
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}
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/** Interrupt endpoint operations */
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static struct usb_endpoint_driver_operations dm96xx_intr_operations = {
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.complete = dm96xx_intr_complete,
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};
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/**
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* Complete bulk IN transfer
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*
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* @v ep USB endpoint
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* @v iobuf I/O buffer
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* @v rc Completion status code
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*/
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static void dm96xx_in_complete ( struct usb_endpoint *ep,
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struct io_buffer *iobuf, int rc ) {
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struct dm96xx_device *dm96xx = container_of ( ep, struct dm96xx_device,
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usbnet.in );
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struct net_device *netdev = dm96xx->netdev;
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struct dm96xx_rx_header *header;
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/* Ignore packets cancelled when the endpoint closes */
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if ( ! ep->open ) {
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free_iob ( iobuf );
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return;
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}
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/* Record USB errors against the network device */
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if ( rc != 0 ) {
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DBGC ( dm96xx, "DM96XX %p bulk IN failed: %s\n",
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dm96xx, strerror ( rc ) );
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goto err;
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}
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/* Sanity check */
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if ( iob_len ( iobuf ) < ( sizeof ( *header ) + 4 /* CRC */ ) ) {
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DBGC ( dm96xx, "DM96XX %p underlength bulk IN\n", dm96xx );
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DBGC_HDA ( dm96xx, 0, iobuf->data, iob_len ( iobuf ) );
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rc = -EINVAL;
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goto err;
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}
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/* Strip header and CRC */
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header = iobuf->data;
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iob_pull ( iobuf, sizeof ( *header ) );
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iob_unput ( iobuf, 4 /* CRC */ );
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/* Check status */
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if ( header->rsr & ~DM96XX_RSR_MF ) {
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DBGC ( dm96xx, "DM96XX %p receive error %02x:\n",
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dm96xx, header->rsr );
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DBGC_HDA ( dm96xx, 0, iobuf->data, iob_len ( iobuf ) );
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rc = -EIO;
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goto err;
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}
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/* Hand off to network stack */
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netdev_rx ( netdev, iob_disown ( iobuf ) );
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return;
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err:
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/* Hand off to network stack */
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netdev_rx_err ( netdev, iob_disown ( iobuf ), rc );
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}
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/** Bulk IN endpoint operations */
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static struct usb_endpoint_driver_operations dm96xx_in_operations = {
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.complete = dm96xx_in_complete,
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};
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/**
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* Transmit packet
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*
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* @v dm96xx DM96xx device
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* @v iobuf I/O buffer
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* @ret rc Return status code
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*/
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static int dm96xx_out_transmit ( struct dm96xx_device *dm96xx,
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struct io_buffer *iobuf ) {
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struct dm96xx_tx_header *header;
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size_t len = iob_len ( iobuf );
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int rc;
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/* Prepend header */
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if ( ( rc = iob_ensure_headroom ( iobuf, sizeof ( *header ) ) ) != 0 )
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return rc;
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header = iob_push ( iobuf, sizeof ( *header ) );
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header->len = cpu_to_le16 ( len );
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/* Enqueue I/O buffer */
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if ( ( rc = usb_stream ( &dm96xx->usbnet.out, iobuf, 0 ) ) != 0 )
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return rc;
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return 0;
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}
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/**
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* Complete bulk OUT transfer
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*
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* @v ep USB endpoint
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* @v iobuf I/O buffer
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* @v rc Completion status code
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*/
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static void dm96xx_out_complete ( struct usb_endpoint *ep,
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struct io_buffer *iobuf, int rc ) {
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struct dm96xx_device *dm96xx = container_of ( ep, struct dm96xx_device,
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usbnet.out );
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struct net_device *netdev = dm96xx->netdev;
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/* Report TX completion */
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netdev_tx_complete_err ( netdev, iobuf, rc );
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}
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/** Bulk OUT endpoint operations */
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static struct usb_endpoint_driver_operations dm96xx_out_operations = {
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.complete = dm96xx_out_complete,
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};
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/******************************************************************************
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*
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* Network device interface
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*
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******************************************************************************
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*/
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/**
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* Open network device
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*
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* @v netdev Network device
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* @ret rc Return status code
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*/
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static int dm96xx_open ( struct net_device *netdev ) {
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struct dm96xx_device *dm96xx = netdev->priv;
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unsigned int rcr;
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int rc;
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/* Set DM9601-compatible RX header mode */
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if ( ( rc = dm96xx_rx_mode ( dm96xx ) ) != 0 )
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goto err_rx_mode;
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/* Write MAC address */
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if ( ( rc = dm96xx_write_mac ( dm96xx, netdev->ll_addr ) ) != 0 )
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goto err_write_mac;
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/* Open USB network device */
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if ( ( rc = usbnet_open ( &dm96xx->usbnet ) ) != 0 ) {
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DBGC ( dm96xx, "DM96XX %p could not open: %s\n",
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dm96xx, strerror ( rc ) );
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goto err_open;
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}
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/* Set receive filters */
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rcr = ( DM96XX_RCR_ALL | DM96XX_RCR_RUNT | DM96XX_RCR_PRMSC |
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DM96XX_RCR_RXEN );
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if ( ( rc = dm96xx_write_register ( dm96xx, DM96XX_RCR, rcr ) ) != 0 ) {
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DBGC ( dm96xx, "DM96XX %p could not write receive filters: "
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"%s\n", dm96xx, strerror ( rc ) );
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goto err_write_rcr;
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}
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/* Update link status */
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if ( ( rc = dm96xx_check_link ( dm96xx ) ) != 0 )
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goto err_check_link;
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return 0;
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err_check_link:
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err_write_rcr:
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usbnet_close ( &dm96xx->usbnet );
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err_open:
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err_write_mac:
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err_rx_mode:
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return rc;
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}
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/**
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* Close network device
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*
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* @v netdev Network device
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*/
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static void dm96xx_close ( struct net_device *netdev ) {
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struct dm96xx_device *dm96xx = netdev->priv;
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/* Close USB network device */
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usbnet_close ( &dm96xx->usbnet );
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/* Reset device */
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dm96xx_reset ( dm96xx );
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}
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/**
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* Transmit packet
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*
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* @v netdev Network device
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* @v iobuf I/O buffer
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* @ret rc Return status code
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*/
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static int dm96xx_transmit ( struct net_device *netdev,
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struct io_buffer *iobuf ) {
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struct dm96xx_device *dm96xx = netdev->priv;
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int rc;
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/* Transmit packet */
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if ( ( rc = dm96xx_out_transmit ( dm96xx, iobuf ) ) != 0 )
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return rc;
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return 0;
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}
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/**
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* Poll for completed and received packets
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*
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* @v netdev Network device
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*/
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static void dm96xx_poll ( struct net_device *netdev ) {
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struct dm96xx_device *dm96xx = netdev->priv;
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int rc;
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/* Poll USB bus */
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usb_poll ( dm96xx->bus );
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/* Refill endpoints */
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if ( ( rc = usbnet_refill ( &dm96xx->usbnet ) ) != 0 )
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netdev_rx_err ( netdev, NULL, rc );
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}
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/** DM96xx network device operations */
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static struct net_device_operations dm96xx_operations = {
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.open = dm96xx_open,
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.close = dm96xx_close,
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.transmit = dm96xx_transmit,
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.poll = dm96xx_poll,
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};
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/******************************************************************************
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*
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* USB interface
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*
|
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******************************************************************************
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*/
|
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|
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/**
|
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* Probe device
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*
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* @v func USB function
|
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* @v config Configuration descriptor
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* @ret rc Return status code
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*/
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static int dm96xx_probe ( struct usb_function *func,
|
||||
struct usb_configuration_descriptor *config ) {
|
||||
struct usb_device *usb = func->usb;
|
||||
struct net_device *netdev;
|
||||
struct dm96xx_device *dm96xx;
|
||||
int rc;
|
||||
|
||||
/* Allocate and initialise structure */
|
||||
netdev = alloc_etherdev ( sizeof ( *dm96xx ) );
|
||||
if ( ! netdev ) {
|
||||
rc = -ENOMEM;
|
||||
goto err_alloc;
|
||||
}
|
||||
netdev_init ( netdev, &dm96xx_operations );
|
||||
netdev->dev = &func->dev;
|
||||
dm96xx = netdev->priv;
|
||||
memset ( dm96xx, 0, sizeof ( *dm96xx ) );
|
||||
dm96xx->usb = usb;
|
||||
dm96xx->bus = usb->port->hub->bus;
|
||||
dm96xx->netdev = netdev;
|
||||
usbnet_init ( &dm96xx->usbnet, func, &dm96xx_intr_operations,
|
||||
&dm96xx_in_operations, &dm96xx_out_operations );
|
||||
usb_refill_init ( &dm96xx->usbnet.intr, 0, DM96XX_INTR_MAX_FILL );
|
||||
usb_refill_init ( &dm96xx->usbnet.in, DM96XX_IN_MTU,
|
||||
DM96XX_IN_MAX_FILL );
|
||||
DBGC ( dm96xx, "DM96XX %p on %s\n", dm96xx, func->name );
|
||||
|
||||
/* Describe USB network device */
|
||||
if ( ( rc = usbnet_describe ( &dm96xx->usbnet, config ) ) != 0 ) {
|
||||
DBGC ( dm96xx, "DM96XX %p could not describe: %s\n",
|
||||
dm96xx, strerror ( rc ) );
|
||||
goto err_describe;
|
||||
}
|
||||
|
||||
/* Reset device */
|
||||
if ( ( rc = dm96xx_reset ( dm96xx ) ) != 0 )
|
||||
goto err_reset;
|
||||
|
||||
/* Read MAC address */
|
||||
if ( ( rc = dm96xx_read_mac ( dm96xx, netdev->hw_addr ) ) != 0 )
|
||||
goto err_read_mac;
|
||||
|
||||
/* Get initial link status */
|
||||
if ( ( rc = dm96xx_check_link ( dm96xx ) ) != 0 )
|
||||
goto err_check_link;
|
||||
|
||||
/* Register network device */
|
||||
if ( ( rc = register_netdev ( netdev ) ) != 0 )
|
||||
goto err_register;
|
||||
|
||||
usb_func_set_drvdata ( func, netdev );
|
||||
return 0;
|
||||
|
||||
unregister_netdev ( netdev );
|
||||
err_register:
|
||||
err_check_link:
|
||||
err_read_mac:
|
||||
err_reset:
|
||||
err_describe:
|
||||
netdev_nullify ( netdev );
|
||||
netdev_put ( netdev );
|
||||
err_alloc:
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**
|
||||
* Remove device
|
||||
*
|
||||
* @v func USB function
|
||||
*/
|
||||
static void dm96xx_remove ( struct usb_function *func ) {
|
||||
struct net_device *netdev = usb_func_get_drvdata ( func );
|
||||
|
||||
unregister_netdev ( netdev );
|
||||
netdev_nullify ( netdev );
|
||||
netdev_put ( netdev );
|
||||
}
|
||||
|
||||
/** DM96xx device IDs */
|
||||
static struct usb_device_id dm96xx_ids[] = {
|
||||
{
|
||||
.name = "dm9601-corega",
|
||||
.vendor = 0x07aa,
|
||||
.product = 0x9601,
|
||||
},
|
||||
{
|
||||
.name = "dm9601",
|
||||
.vendor = 0x0a46,
|
||||
.product = 0x9601,
|
||||
},
|
||||
{
|
||||
.name = "zt6688",
|
||||
.vendor = 0x0a46,
|
||||
.product = 0x6688,
|
||||
},
|
||||
{
|
||||
.name = "st268",
|
||||
.vendor = 0x0a46,
|
||||
.product = 0x0268,
|
||||
},
|
||||
{
|
||||
.name = "adm8515",
|
||||
.vendor = 0x0a46,
|
||||
.product = 0x8515,
|
||||
},
|
||||
{
|
||||
.name = "dm9601-hirose",
|
||||
.vendor = 0x0a47,
|
||||
.product = 0x9601,
|
||||
},
|
||||
{
|
||||
.name = "dm9601-8101",
|
||||
.vendor = 0x0fe6,
|
||||
.product = 0x8101,
|
||||
},
|
||||
{
|
||||
.name = "dm9601-9700",
|
||||
.vendor = 0x0fe6,
|
||||
.product = 0x9700,
|
||||
},
|
||||
{
|
||||
.name = "dm9000e",
|
||||
.vendor = 0x0a46,
|
||||
.product = 0x9000,
|
||||
},
|
||||
{
|
||||
.name = "dm9620",
|
||||
.vendor = 0x0a46,
|
||||
.product = 0x9620,
|
||||
},
|
||||
{
|
||||
.name = "dm9621A",
|
||||
.vendor = 0x0a46,
|
||||
.product = 0x9621,
|
||||
},
|
||||
{
|
||||
.name = "dm9622",
|
||||
.vendor = 0x0a46,
|
||||
.product = 0x9622,
|
||||
},
|
||||
{
|
||||
.name = "dm962Oa",
|
||||
.vendor = 0x0a46,
|
||||
.product = 0x0269,
|
||||
},
|
||||
{
|
||||
.name = "dm9621a",
|
||||
.vendor = 0x0a46,
|
||||
.product = 0x1269,
|
||||
},
|
||||
};
|
||||
|
||||
/** Davicom DM96xx driver */
|
||||
struct usb_driver dm96xx_driver __usb_driver = {
|
||||
.ids = dm96xx_ids,
|
||||
.id_count = ( sizeof ( dm96xx_ids ) / sizeof ( dm96xx_ids[0] ) ),
|
||||
.probe = dm96xx_probe,
|
||||
.remove = dm96xx_remove,
|
||||
};
|
||||
|
|
@ -0,0 +1,194 @@
|
|||
#ifndef _DM96XX_H
|
||||
#define _DM96XX_H
|
||||
|
||||
/** @file
|
||||
*
|
||||
* Davicom DM96xx USB Ethernet driver
|
||||
*
|
||||
*/
|
||||
|
||||
FILE_LICENCE ( GPL2_OR_LATER );
|
||||
|
||||
#include <ipxe/usb.h>
|
||||
#include <ipxe/usbnet.h>
|
||||
#include <ipxe/if_ether.h>
|
||||
|
||||
/** Read register(s) */
|
||||
#define DM96XX_READ_REGISTER \
|
||||
( USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE | \
|
||||
USB_REQUEST_TYPE ( 0x00 ) )
|
||||
|
||||
/** Write register(s) */
|
||||
#define DM96XX_WRITE_REGISTER \
|
||||
( USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE | \
|
||||
USB_REQUEST_TYPE ( 0x01 ) )
|
||||
|
||||
/** Write single register */
|
||||
#define DM96XX_WRITE1_REGISTER \
|
||||
( USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE | \
|
||||
USB_REQUEST_TYPE ( 0x03 ) )
|
||||
|
||||
/** Network control register */
|
||||
#define DM96XX_NCR 0x00
|
||||
#define DM96XX_NCR_RST 0x01 /**< Software reset */
|
||||
|
||||
/** Network status register */
|
||||
#define DM96XX_NSR 0x01
|
||||
#define DM96XX_NSR_LINKST 0x40 /**< Link status */
|
||||
|
||||
/** Receive control register */
|
||||
#define DM96XX_RCR 0x05
|
||||
#define DM96XX_RCR_ALL 0x08 /**< Pass all multicast */
|
||||
#define DM96XX_RCR_RUNT 0x04 /**< Pass runt packet */
|
||||
#define DM96XX_RCR_PRMSC 0x02 /**< Promiscuous mode */
|
||||
#define DM96XX_RCR_RXEN 0x01 /**< RX enable */
|
||||
|
||||
/** Receive status register */
|
||||
#define DM96XX_RSR 0x06
|
||||
#define DM96XX_RSR_MF 0x40 /**< Multicast frame */
|
||||
|
||||
/** PHY address registers */
|
||||
#define DM96XX_PAR 0x10
|
||||
|
||||
/** Chip revision register */
|
||||
#define DM96XX_CHIPR 0x2c
|
||||
#define DM96XX_CHIPR_9601 0x00 /**< DM9601 */
|
||||
#define DM96XX_CHIPR_9620 0x01 /**< DM9620 */
|
||||
|
||||
/** RX header control/status register (DM9620+ only) */
|
||||
#define DM96XX_MODE_CTL 0x91
|
||||
#define DM96XX_MODE_CTL_MODE 0x80 /**< 4-byte header mode */
|
||||
|
||||
/** DM96xx interrupt data */
|
||||
struct dm96xx_interrupt {
|
||||
/** Network status register */
|
||||
uint8_t nsr;
|
||||
/** Transmit status registers */
|
||||
uint8_t tsr[2];
|
||||
/** Receive status register */
|
||||
uint8_t rsr;
|
||||
/** Receive overflow counter register */
|
||||
uint8_t rocr;
|
||||
/** Receive packet counter */
|
||||
uint8_t rxc;
|
||||
/** Transmit packet counter */
|
||||
uint8_t txc;
|
||||
/** General purpose register */
|
||||
uint8_t gpr;
|
||||
} __attribute__ (( packed ));
|
||||
|
||||
/** DM96xx receive header */
|
||||
struct dm96xx_rx_header {
|
||||
/** Packet status */
|
||||
uint8_t rsr;
|
||||
/** Packet length (excluding this header, including CRC) */
|
||||
uint16_t len;
|
||||
} __attribute__ (( packed ));
|
||||
|
||||
/** DM96xx transmit header */
|
||||
struct dm96xx_tx_header {
|
||||
/** Packet length (excluding this header) */
|
||||
uint16_t len;
|
||||
} __attribute__ (( packed ));
|
||||
|
||||
/** A DM96xx network device */
|
||||
struct dm96xx_device {
|
||||
/** USB device */
|
||||
struct usb_device *usb;
|
||||
/** USB bus */
|
||||
struct usb_bus *bus;
|
||||
/** Network device */
|
||||
struct net_device *netdev;
|
||||
/** USB network device */
|
||||
struct usbnet_device usbnet;
|
||||
};
|
||||
|
||||
/**
|
||||
* Read registers
|
||||
*
|
||||
* @v dm96xx DM96xx device
|
||||
* @v offset Register offset
|
||||
* @v data Data buffer
|
||||
* @v len Length of data
|
||||
* @ret rc Return status code
|
||||
*/
|
||||
static inline __attribute__ (( always_inline )) int
|
||||
dm96xx_read_registers ( struct dm96xx_device *dm96xx, unsigned int offset,
|
||||
void *data, size_t len ) {
|
||||
|
||||
return usb_control ( dm96xx->usb, DM96XX_READ_REGISTER, 0, offset,
|
||||
data, len );
|
||||
}
|
||||
|
||||
/**
|
||||
* Read register
|
||||
*
|
||||
* @v dm96xx DM96xx device
|
||||
* @v offset Register offset
|
||||
* @ret value Register value, or negative error
|
||||
*/
|
||||
static inline __attribute__ (( always_inline )) int
|
||||
dm96xx_read_register ( struct dm96xx_device *dm96xx, unsigned int offset ) {
|
||||
uint8_t value;
|
||||
int rc;
|
||||
|
||||
if ( ( rc = dm96xx_read_registers ( dm96xx, offset, &value,
|
||||
sizeof ( value ) ) ) != 0 )
|
||||
return rc;
|
||||
return value;
|
||||
}
|
||||
|
||||
/**
|
||||
* Write registers
|
||||
*
|
||||
* @v dm96xx DM96xx device
|
||||
* @v offset Register offset
|
||||
* @v data Data buffer
|
||||
* @v len Length of data
|
||||
* @ret rc Return status code
|
||||
*/
|
||||
static inline __attribute__ (( always_inline )) int
|
||||
dm96xx_write_registers ( struct dm96xx_device *dm96xx, unsigned int offset,
|
||||
void *data, size_t len ) {
|
||||
|
||||
return usb_control ( dm96xx->usb, DM96XX_WRITE_REGISTER, 0, offset,
|
||||
data, len );
|
||||
}
|
||||
|
||||
/**
|
||||
* Write register
|
||||
*
|
||||
* @v dm96xx DM96xx device
|
||||
* @v offset Register offset
|
||||
* @v value Register value
|
||||
* @ret rc Return status code
|
||||
*/
|
||||
static inline __attribute__ (( always_inline )) int
|
||||
dm96xx_write_register ( struct dm96xx_device *dm96xx, unsigned int offset,
|
||||
uint8_t value ) {
|
||||
|
||||
return usb_control ( dm96xx->usb, DM96XX_WRITE1_REGISTER, value,
|
||||
offset, NULL, 0 );
|
||||
}
|
||||
|
||||
/** Reset delay (in microseconds) */
|
||||
#define DM96XX_RESET_DELAY_US 10
|
||||
|
||||
/** Interrupt maximum fill level
|
||||
*
|
||||
* This is a policy decision.
|
||||
*/
|
||||
#define DM96XX_INTR_MAX_FILL 2
|
||||
|
||||
/** Bulk IN maximum fill level
|
||||
*
|
||||
* This is a policy decision.
|
||||
*/
|
||||
#define DM96XX_IN_MAX_FILL 8
|
||||
|
||||
/** Bulk IN buffer size */
|
||||
#define DM96XX_IN_MTU \
|
||||
( 4 /* DM96xx header */ + ETH_FRAME_LEN + \
|
||||
4 /* possible VLAN header */ + 4 /* CRC */ )
|
||||
|
||||
#endif /* _DM96XX_H */
|
||||
|
|
@ -164,7 +164,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
|
|||
#define ERRFILE_ecm ( ERRFILE_DRIVER | 0x006c0000 )
|
||||
#define ERRFILE_ncm ( ERRFILE_DRIVER | 0x006d0000 )
|
||||
#define ERRFILE_usbnet ( ERRFILE_DRIVER | 0x006e0000 )
|
||||
|
||||
#define ERRFILE_dm96xx ( ERRFILE_DRIVER | 0x006f0000 )
|
||||
#define ERRFILE_scsi ( ERRFILE_DRIVER | 0x00700000 )
|
||||
#define ERRFILE_arbel ( ERRFILE_DRIVER | 0x00710000 )
|
||||
#define ERRFILE_hermon ( ERRFILE_DRIVER | 0x00720000 )
|
||||
|
|
|
|||
|
|
@ -78,6 +78,9 @@ struct usb_setup_packet {
|
|||
/** Class-specific request type */
|
||||
#define USB_TYPE_CLASS ( 1 << 5 )
|
||||
|
||||
/** Vendor-specific request type */
|
||||
#define USB_TYPE_VENDOR ( 2 << 5 )
|
||||
|
||||
/** Request recipient is the device */
|
||||
#define USB_RECIP_DEVICE ( 0 << 0 )
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue