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![Krzysztof Halasa](/assets/img/avatar_default.png)
This is a driver for SBE Inc.'s dual port T3/E3 WAN cards. Based on their original GPLed driver. The original driver tarball is now accessible at http://userweb.kernel.org/~chris/SBE_2T3_Linux_2.0c.tgz It needs at least a new generic HDLC setup code (not yet written) before moving to drivers/net/wan. Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
142 lines
3.4 KiB
C
142 lines
3.4 KiB
C
/*
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* SBE 2T3E3 synchronous serial card driver for Linux
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*
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* Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License
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* as published by the Free Software Foundation.
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*
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* This code is based on a driver written by SBE Inc.
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*/
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#include <linux/capability.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/netdevice.h>
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#include <linux/pci.h>
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#include <linux/hdlc.h>
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#include <linux/if_arp.h>
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#include <linux/interrupt.h>
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#include "2t3e3.h"
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int t3e3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
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{
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struct channel *sc = dev_to_priv(dev);
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int cmd_2t3e3, len, rlen;
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t3e3_param_t param;
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t3e3_resp_t resp;
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void *data = ifr->ifr_data + sizeof(cmd_2t3e3) + sizeof(len);
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if (cmd == SIOCWANDEV)
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return hdlc_ioctl(dev, ifr, cmd);
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if (!capable(CAP_SYS_ADMIN))
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return -EPERM;
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if (cmd != SIOCDEVPRIVATE + 15)
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return -EINVAL;
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if (copy_from_user(&cmd_2t3e3, ifr->ifr_data, sizeof(cmd_2t3e3)))
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return -EFAULT;
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if (copy_from_user(&len, ifr->ifr_data + sizeof(cmd_2t3e3), sizeof(len)))
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return -EFAULT;
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if (len > sizeof(param))
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return -EFAULT;
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if (len)
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if (copy_from_user(¶m, data, len))
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return -EFAULT;
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t3e3_if_config(sc, cmd_2t3e3, (char *)¶m, &resp, &rlen);
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if (rlen)
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if (copy_to_user(data, &resp, rlen))
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return -EFAULT;
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return 0;
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}
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static struct net_device_stats* t3e3_get_stats(struct net_device *dev)
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{
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struct net_device_stats *nstats = &dev->stats;
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struct channel *sc = dev_to_priv(dev);
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t3e3_stats_t *stats = &sc->s;
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memset(nstats, 0, sizeof(struct net_device_stats));
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nstats->rx_packets = stats->in_packets;
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nstats->tx_packets = stats->out_packets;
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nstats->rx_bytes = stats->in_bytes;
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nstats->tx_bytes = stats->out_bytes;
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nstats->rx_errors = stats->in_errors;
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nstats->tx_errors = stats->out_errors;
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nstats->rx_crc_errors = stats->in_error_crc;
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nstats->rx_dropped = stats->in_dropped;
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nstats->tx_dropped = stats->out_dropped;
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nstats->tx_carrier_errors = stats->out_error_lost_carr +
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stats->out_error_no_carr;
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return nstats;
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}
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int t3e3_open(struct net_device *dev)
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{
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struct channel *sc = dev_to_priv(dev);
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int ret = hdlc_open(dev);
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if (ret)
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return ret;
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sc->r.flags |= SBE_2T3E3_FLAG_NETWORK_UP;
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dc_start(dev_to_priv(dev));
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netif_start_queue(dev);
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try_module_get(THIS_MODULE);
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return 0;
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}
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int t3e3_close(struct net_device *dev)
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{
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struct channel *sc = dev_to_priv(dev);
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hdlc_close(dev);
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netif_stop_queue(dev);
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dc_stop(sc);
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sc->r.flags &= ~SBE_2T3E3_FLAG_NETWORK_UP;
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module_put(THIS_MODULE);
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return 0;
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}
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static int t3e3_attach(struct net_device *dev, unsigned short foo1,
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unsigned short foo2)
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{
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return 0;
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}
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static const struct net_device_ops t3e3_ops = {
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.ndo_open = t3e3_open,
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.ndo_stop = t3e3_close,
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.ndo_change_mtu = hdlc_change_mtu,
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.ndo_start_xmit = hdlc_start_xmit,
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.ndo_do_ioctl = t3e3_ioctl,
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.ndo_get_stats = t3e3_get_stats,
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};
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int setup_device(struct net_device *dev, struct channel *sc)
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{
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hdlc_device *hdlc = dev_to_hdlc(dev);
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int retval;
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dev->base_addr = pci_resource_start(sc->pdev, 0);
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dev->irq = sc->pdev->irq;
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dev->netdev_ops = &t3e3_ops;
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dev->tx_queue_len = 100;
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hdlc->xmit = t3e3_if_start_xmit;
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hdlc->attach = t3e3_attach;
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if ((retval = register_hdlc_device(dev))) {
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dev_err(&sc->pdev->dev, "error registering HDLC device\n");
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return retval;
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}
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return 0;
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}
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