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*
* kawasaki.c - driver for KL5KUSB101 based USB->Ethernet
*
* (c) 2000 Interlan Communications
*
* Original author: The Zapman <zapman@interlan.net>
* Inspired by, and much credit goes to Michael Rothwell <rothwell@interlan.net>
* for the test equipment, help, and patience
* Based off of (and with thanks to) Petko Manolov's pegaus.c driver.
* Also many thanks to Joel Silverman at Kawasaki for providing the firmware
* and driver resources.
*
* 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, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
****************************************************************/
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/malloc.h>
#include <linux/string.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/usb.h>
#include <linux/types.h>
#include <asm/semaphore.h>
#include "kawethfw.h"
#define KAWETH_MTU 1514
#define KAWETH_BUF_SIZE 1664
#define KAWETH_TX_TIMEOUT (1 * HZ)
#define KAWETH_FIRMWARE_BUF_SIZE 4096
#define KAWETH_CONTROL_TIMEOUT (1 * HZ)
#define KAWETH_STATUS_BROKEN 0x0000001
#define KAWETH_STATUS_CLOSING 0x0000002
#define KAWETH_PACKET_FILTER_PROMISCUOUS 0x01
#define KAWETH_PACKET_FILTER_ALL_MULTICAST 0x02
#define KAWETH_PACKET_FILTER_DIRECTED 0x04
#define KAWETH_PACKET_FILTER_BROADCAST 0x08
#define KAWETH_PACKET_FILTER_MULTICAST 0x10
#define KAWETH_COMMAND_GET_ETHERNET_DESC 0x00
#define KAWETH_COMMAND_SET_PACKET_FILTER 0x02
#define KAWETH_COMMAND_GET_MAC 0x06
#define KAWETH_COMMAND_SET_URB_SIZE 0x08
#define KAWETH_COMMAND_SET_SOFS_WAIT 0x09
#define KAWETH_COMMAND_SCAN 0xFF
#define KAWETH_SOFS_TO_WAIT 0x05
MODULE_AUTHOR("Michael Zappe <zapman@interlan.net>");
MODULE_DESCRIPTION("KL5USB101 USB Ethernet driver");
static void *kaweth_probe(struct usb_device *dev, unsigned int ifnum);
static void kaweth_disconnect(struct usb_device *dev, void *ptr);
/****************************************************************
* kaweth_driver
****************************************************************/
static struct usb_driver kaweth_driver = {
name: "kaweth",
probe: kaweth_probe,
disconnect: kaweth_disconnect,
};
// __attribute__ ((packed))
typedef __u8 eth_addr_t[6];
/****************************************************************
* usb_eth_dev
****************************************************************/
struct usb_eth_dev {
char *name;
__u16 vendor;
__u16 device;
void *pdata;
};
/****************************************************************
* kaweth_ethernet_configuration
****************************************************************/
struct kaweth_ethernet_configuration
{
__u8 size;
__u8 reserved1;
__u8 reserved2;
eth_addr_t hw_addr;
__u32 statistics_mask;
__u16 segment_size;
__u16 max_multicast_filters;
__u8 reserved3;
} __attribute__ ((packed));
/****************************************************************
* kaweth_device
****************************************************************/
struct kaweth_device
{
spinlock_t device_lock;
__u32 status;
struct usb_device *dev;
struct net_device *net;
wait_queue_head_t control_wait;
struct urb *rx_urb;
struct urb *tx_urb;
__u8 firmware_buf[KAWETH_FIRMWARE_BUF_SIZE];
__u8 tx_buf[KAWETH_BUF_SIZE];
__u8 rx_buf[KAWETH_BUF_SIZE];
struct kaweth_ethernet_configuration configuration;
struct net_device_stats stats;
} __attribute__ ((packed));
/****************************************************************
* usb_dev_id
****************************************************************/
static struct usb_eth_dev usb_dev_id[] = {
{ "KLSI KL5KUSB101B", 0x05e9, 0x0008, NULL },
{ "NetGear EA-101", 0x0846, 0x1001, NULL },
{ "Peracom Enet", 0x0565, 0x0002, NULL },
{ "Peracom Enet2", 0x0565, 0x0005, NULL },
{ "3Com 3C19250", 0x0506, 0x03e8, NULL },
{ "Linksys USB10T", 0x066b, 0x2202, NULL },
{ "D-Link DSB-650C", 0x2001, 0x4000, NULL },
{ "D-Link DSB-650", 0x0557, 0x2002, NULL },
{ "AOX USB Ethernet", 0x03e8, 0x0008, NULL },
{ "ADS USB-10BT", 0x06e1, 0x0008, NULL },
{ "Entrega E45", 0x1645, 0x0005, NULL},
{ "SMC 2202USB", 0x0707, 0x0100, NULL},
{ "Correga K.K.", 0x07aa, 0x0001, NULL},
{ NULL, 0, 0, NULL },
};
/****************************************************************
* kaweth_check_device_ids
****************************************************************/
static int kaweth_check_device_ids(__u16 vendor, __u16 product)
{
int i=0;
while (usb_dev_id[i].name)
{
if((usb_dev_id[i].vendor == vendor) &&
(usb_dev_id[i].device == product))
{
printk("%s connected...\n", usb_dev_id[i].name);
return 0;
}
i++;
}
return 1;
}
/****************************************************************
* kaweth_control_complete
****************************************************************/
static void kaweth_control_complete(struct urb *urb)
{
struct kaweth_device *kaweth = (struct kaweth_device *)urb->context;
if(waitqueue_active(&kaweth->control_wait))
{
wake_up(&kaweth->control_wait);
}
}
/****************************************************************
* kaweth_control
****************************************************************/
static int kaweth_control(struct kaweth_device *kaweth,
unsigned int pipe,
__u8 request,
__u8 requesttype,
__u16 value,
__u16 index,
void *data,
__u16 size,
int timeout)
{
DECLARE_WAITQUEUE(wait, current);
purb_t urb;
devrequest *dr;
int status;
if(in_interrupt())
{
return -EBUSY;
}
urb = usb_alloc_urb(0);
dr = kmalloc(sizeof(devrequest), in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
if(!urb || !dr)
{
if(urb) kfree(urb);
return -ENOMEM;
}
spin_lock(&kaweth->device_lock);
urb->dev = kaweth->dev;
urb->pipe = pipe;
urb->setup_packet = (void *)dr;
urb->transfer_flags = USB_DISABLE_SPD;
urb->transfer_buffer = (void *)data;
urb->transfer_buffer_length = size;
urb->actual_length = size;
urb->complete = kaweth_control_complete;
urb->context = kaweth;
dr->requesttype = requesttype;
dr->request = request;
dr->value = value;
dr->index = index;
dr->length = size;
printk("Request type: %x Request: %x Value: %x Index: %x Length: %x\n",
(int)dr->requesttype,
(int)dr->request,
(int)dr->value,
(int)dr->index,
(int)dr->length);
init_waitqueue_head(&kaweth->control_wait);
current->state = TASK_INTERRUPTIBLE;
add_wait_queue(&kaweth->control_wait, &wait);
status = usb_submit_urb(urb);
// printk("pipe: %x\n", pipe);
// printk("maxpacket: %x\n", usb_maxpacket(kaweth->dev, pipe, usb_pipeout(pipe)));
if(status)
{
usb_free_urb(urb);
remove_wait_queue(&kaweth->control_wait, &wait);
spin_unlock(&kaweth->device_lock);
return status;
}
if(urb->status == -EINPROGRESS)
{
while(timeout && urb->status == -EINPROGRESS)
{
status = timeout = schedule_timeout(timeout);
}
}
else
{
status = 1;
}
remove_wait_queue(&kaweth->control_wait, &wait);
if(!status)
{
usb_unlink_urb(urb);
printk("kaweth timeout\n");
status = -ETIMEDOUT;
}
else
{
status = urb->status;
if(urb->status)
{
printk("kaweth control message failed (urb addr: %x)\n", (int)urb);
usb_clear_halt(kaweth->dev, usb_rcvctrlpipe(kaweth->dev, 0));
usb_clear_halt(kaweth->dev, usb_sndctrlpipe(kaweth->dev, 0));
usb_unlink_urb(urb);
}
}
spin_unlock(&kaweth->device_lock);
printk("Actual length: %d, length %d\n", urb->actual_length, urb->transfer_buffer_length);
// printk("pipe: %x\n", pipe);
// printk("maxpacket: %x\n", usb_maxpacket(kaweth->dev, pipe, usb_pipeout(pipe)));
usb_free_urb(urb);
kfree(dr);
return status;
}
/****************************************************************
* kaweth_read_configuration
****************************************************************/
static int kaweth_read_configuration(struct kaweth_device *kaweth)
{
int retval;
printk("Reading kaweth configuration\n");
retval = kaweth_control(kaweth,
usb_rcvctrlpipe(kaweth->dev, 0),
KAWETH_COMMAND_GET_ETHERNET_DESC,
USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE,
0,
0,
(void *)&kaweth->configuration,
sizeof(kaweth->configuration),
KAWETH_CONTROL_TIMEOUT);
return retval;
}
/****************************************************************
* kaweth_set_urb_size
****************************************************************/
static int kaweth_set_urb_size(struct kaweth_device *kaweth, __u16 urb_size)
{
int retval;
printk("Setting URB size to %d\n", (unsigned)urb_size);
retval = kaweth_control(kaweth,
usb_sndctrlpipe(kaweth->dev, 0),
KAWETH_COMMAND_SET_URB_SIZE,
USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
urb_size,
0,
(void *)&kaweth->firmware_buf,
0,
KAWETH_CONTROL_TIMEOUT);
return retval;
}
/****************************************************************
* kaweth_set_sofs_wait
****************************************************************/
static int kaweth_set_sofs_wait(struct kaweth_device *kaweth, __u16 sofs_wait)
{
int retval;
printk("Set SOFS wait to %d\n", (unsigned)sofs_wait);
retval = kaweth_control(kaweth,
usb_sndctrlpipe(kaweth->dev, 0),
KAWETH_COMMAND_SET_SOFS_WAIT,
USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
sofs_wait,
0,
(void *)&kaweth->firmware_buf,
0,
KAWETH_CONTROL_TIMEOUT);
return retval;
}
/****************************************************************
* kaweth_set_receive_filter
****************************************************************/
static int kaweth_set_receive_filter(struct kaweth_device *kaweth, __u16 receive_filter)
{
int retval;
printk("Set receive filter to %d\n", (unsigned)receive_filter);
retval = kaweth_control(kaweth,
usb_sndctrlpipe(kaweth->dev, 0),
KAWETH_COMMAND_SET_PACKET_FILTER,
USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
receive_filter,
0,
(void *)&kaweth->firmware_buf,
0,
KAWETH_CONTROL_TIMEOUT);
return retval;
}
/****************************************************************
* kaweth_download_firmware
****************************************************************/
static int kaweth_download_firmware(struct kaweth_device *kaweth,
__u8 *data,
__u16 data_len,
__u8 interrupt,
__u8 type)
{
if(data_len > KAWETH_FIRMWARE_BUF_SIZE)
{
printk("Firmware too big: %d\n", data_len);
return -ENOSPC;
}
memcpy(kaweth->firmware_buf, data, data_len);
kaweth->firmware_buf[2] = (data_len & 0xFF) - 7;
kaweth->firmware_buf[3] = data_len >> 8;
kaweth->firmware_buf[4] = type;
kaweth->firmware_buf[5] = interrupt;
printk("Downloading firmware at %x to kaweth device at %x...\n", (int)data, (int)kaweth);
printk("Firmware length: %d\n", data_len);
return kaweth_control(kaweth,
usb_sndctrlpipe(kaweth->dev, 0),
KAWETH_COMMAND_SCAN,
USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
0,
0,
(void *)&kaweth->firmware_buf,
data_len,
KAWETH_CONTROL_TIMEOUT);
}
/****************************************************************
* kaweth_trigger_firmware
****************************************************************/
static int kaweth_trigger_firmware(struct kaweth_device *kaweth,
__u8 interrupt)
{
kaweth->firmware_buf[0] = 0xB6;
kaweth->firmware_buf[1] = 0xC3;
kaweth->firmware_buf[2] = 1;
kaweth->firmware_buf[3] = 0;
kaweth->firmware_buf[4] = 6;
kaweth->firmware_buf[5] = 100;
kaweth->firmware_buf[6] = 0;
kaweth->firmware_buf[7] = 0;
printk("Triggering firmware\n");
return kaweth_control(kaweth,
usb_sndctrlpipe(kaweth->dev, 0),
KAWETH_COMMAND_SCAN,
USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
0,
0,
(void *)&kaweth->firmware_buf,
8,
KAWETH_CONTROL_TIMEOUT);
}
/****************************************************************
* kaweth_reset
****************************************************************/
static int kaweth_reset(struct kaweth_device *kaweth)
{
int result;
result = usb_set_configuration(kaweth->dev, 1);
udelay(10000);
return result;
}
static void kaweth_usb_receive(struct urb *);
/****************************************************************
* kaweth_resubmit_rx_urb
****************************************************************/
static inline void kaweth_resubmit_rx_urb(struct kaweth_device *kaweth)
{
int result;
memset(kaweth->rx_urb, 0, sizeof(*kaweth->rx_urb));
spin_lock_init(&kaweth->rx_urb->lock);
FILL_BULK_URB(kaweth->rx_urb,
kaweth->dev,
usb_rcvbulkpipe(kaweth->dev, 1),
kaweth->rx_buf,
KAWETH_BUF_SIZE,
kaweth_usb_receive,
kaweth);
// kaweth->rx_urb->transfer_flags = USB_DISABLE_SPD | USB_URB_EARLY_COMPLETE;
if((result = usb_submit_urb(kaweth->rx_urb)))
{
printk("kaweth: resubmitting rx_urb %d failed\n", result);
}
}
/****************************************************************
* kaweth_usb_receive
****************************************************************/
static void kaweth_usb_receive(struct urb *urb)
{
struct kaweth_device *kaweth = urb->context;
struct net_device *net = kaweth->net;
int count = urb->actual_length,
count2 = urb->transfer_buffer_length;
__u16 pkt_len = *(__u16 *)kaweth->rx_buf;
struct sk_buff *skb;
if(kaweth->status & KAWETH_STATUS_CLOSING)
{
return;
}
#define RX_FAILED kaweth_resubmit_rx_urb(kaweth); \
return
if(urb->status && urb->status != -EREMOTEIO && count != 1)
{
printk("%s: RX status: %d count: %d packet_len: %d\n",
net->name, urb->status, count, (int)pkt_len);
RX_FAILED;
}
if(kaweth->net && (count > 2))
{
if(pkt_len > (count - 2))
{
printk("kaweth error: packet length too long for USB frame (pkt_len: %x, count: %x)\n",
pkt_len, count);
printk("Packet len & 2047: %x\n", pkt_len & 2047);
printk("Count 2: %x\n", count2);
RX_FAILED;
}
if(!(skb = dev_alloc_skb(pkt_len+2)))
{
RX_FAILED;
}
skb->dev = net;
eth_copy_and_sum(skb, kaweth->rx_buf + 2, pkt_len, 0);
skb_put(skb, pkt_len);
skb->protocol = eth_type_trans(skb, net);
netif_rx(skb);
kaweth->stats.rx_packets++;
kaweth->stats.rx_bytes += pkt_len;
}
kaweth_resubmit_rx_urb(kaweth);
}
/****************************************************************
* kaweth_open
****************************************************************/
static int kaweth_open(struct net_device *net)
{
struct kaweth_device *kaweth = (struct kaweth_device *)net->priv;
printk("Dev usage: %d\n", kaweth->dev->refcnt.counter);
printk("Opening network device...\n");
kaweth_resubmit_rx_urb(kaweth);
netif_start_queue(net);
MOD_INC_USE_COUNT;
return 0;
}
/****************************************************************
* kaweth_close
****************************************************************/
static int kaweth_close(struct net_device *net)
{
struct kaweth_device *kaweth = net->priv;
netif_stop_queue(net);
kaweth->status |= KAWETH_STATUS_CLOSING;
usb_unlink_urb(kaweth->rx_urb);
kaweth->status &= ~KAWETH_STATUS_CLOSING;
MOD_DEC_USE_COUNT;
printk("Dev usage: %d\n", kaweth->dev->refcnt.counter);
return 0;
}
/****************************************************************
* kaweth_ioctl
****************************************************************/
static int kaweth_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
{
// __u16 *data = (__u16 *)&rq->ifr_data;
// struct kaweth_device *kaweth = net->priv;
/*
switch(cmd) {
default:
return -EOPNOTSUPP;
}
*/
return -EOPNOTSUPP;
}
/****************************************************************
* kaweth_usb_transmit_complete
****************************************************************/
static void kaweth_usb_transmit_complete(struct urb *urb)
{
struct kaweth_device *kaweth = urb->context;
spin_lock(&kaweth->device_lock);
if (urb->status)
printk("%s: TX status %d", kaweth->net->name, urb->status);
netif_wake_queue(kaweth->net);
spin_unlock(&kaweth->device_lock);
}
/****************************************************************
* kaweth_start_xmit
****************************************************************/
static int kaweth_start_xmit(struct sk_buff *skb, struct net_device *net)
{
struct kaweth_device *kaweth = net->priv;
// int count = ((skb->len) & 0x3f) ? skb->len+2 : skb->len+3;
int count = skb->len;
int res;
spin_lock(&kaweth->device_lock);
netif_stop_queue(net);
*((__u16 *)kaweth->tx_buf) = skb->len;
memcpy(kaweth->tx_buf + 2, skb->data, skb->len);
memset(kaweth->tx_urb, 0, sizeof(*kaweth->tx_urb));
spin_lock_init(&kaweth->tx_urb->lock);
FILL_BULK_URB(kaweth->tx_urb,
kaweth->dev,
usb_sndbulkpipe(kaweth->dev, 2),
kaweth->tx_buf,
count + 2,
kaweth_usb_transmit_complete,
kaweth);
if((res = usb_submit_urb(kaweth->tx_urb)))
{
warn("kaweth failed tx_urb %d", res);
kaweth->stats.tx_errors++;
netif_start_queue(net);
}
else
{
kaweth->stats.tx_packets++;
kaweth->stats.tx_bytes += skb->len;
net->trans_start = jiffies;
}
dev_kfree_skb(skb);
spin_unlock(&kaweth->device_lock);
return 0;
}
/****************************************************************
* kaweth_set_rx_mode
****************************************************************/
static void kaweth_set_rx_mode(struct net_device *net)
{
struct kaweth_device *kaweth = net->priv;
int result;
__u16 packet_filter_bitmap = KAWETH_PACKET_FILTER_DIRECTED |
KAWETH_PACKET_FILTER_BROADCAST |
KAWETH_PACKET_FILTER_MULTICAST;
printk("Setting Rx mode\n");
netif_stop_queue(net);
if (net->flags & IFF_PROMISC)
{
packet_filter_bitmap |= KAWETH_PACKET_FILTER_PROMISCUOUS;
}
else if ((net->mc_count) || // > multicast_filter_limit) ||
(net->flags & IFF_ALLMULTI))
{
packet_filter_bitmap |= KAWETH_PACKET_FILTER_ALL_MULTICAST;
}
result = kaweth_control(kaweth,
usb_sndctrlpipe(kaweth->dev, 0),
KAWETH_COMMAND_SET_PACKET_FILTER,
USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
packet_filter_bitmap,
0,
(void *)&kaweth->firmware_buf,
0,
KAWETH_CONTROL_TIMEOUT);
if(result < 0)
{
printk("Failed to set Rx mode: %d\n", result);
}
else
{
printk("%s: set Rx mode to %d\n", net->name, packet_filter_bitmap);
}
netif_wake_queue(net);
}
/****************************************************************
* kaweth_netdev_stats
****************************************************************/
static struct net_device_stats *kaweth_netdev_stats(struct net_device *dev)
{
return &((struct kaweth_device *)dev->priv)->stats;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 3, 0)
/****************************************************************
* kaweth_tx_timeout
****************************************************************/
static void kaweth_tx_timeout(struct net_device *net)
{
struct kaweth_device *kaweth = net->priv;
printk("%s: Tx timed out. Reseting...\n", net->name);
kaweth->stats.tx_errors++;
net->trans_start = jiffies;
usb_unlink_urb(kaweth->tx_urb);
netif_wake_queue(net);
}
#endif
/****************************************************************
* kaweth_probe
****************************************************************/
static void *kaweth_probe(struct usb_device *dev, unsigned int ifnum)
{
// struct net_device *net;
// eth_addr_t mac_addr;
struct kaweth_device *kaweth;
const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
int result = 0;
int i;
printk("Kawasaki Device Probe (Device number:%x): 0x%4.4x:0x%4.4x\n",
dev->devnum,
(int)dev->descriptor.idVendor,
(int)dev->descriptor.idProduct);
printk("Device at %p\n", dev);
printk("Descriptor length: %x type: %x\n",
(int)dev->descriptor.bLength,
(int)dev->descriptor.bDescriptorType);
if (kaweth_check_device_ids(dev->descriptor.idVendor,
dev->descriptor.idProduct))
{
return NULL;
}
if(!(kaweth = kmalloc(sizeof(struct kaweth_device), GFP_KERNEL)))
{
printk("out of memory allocating device structure\n");
return NULL;
}
memset(kaweth, 0, sizeof(*kaweth));
kaweth->dev = dev;
kaweth->status = 0;
kaweth->net = NULL;
kaweth->device_lock = SPIN_LOCK_UNLOCKED;
if((result = kaweth_read_configuration(kaweth)) < 0)
{
// printk("Resetting (jiffies: %x)...\n", jiffies);
printk("Resetting...\n");
kaweth_reset(kaweth);
// printk("Dowloading firmware (jiffies: %x)...\n", jiffies);
if((result = kaweth_download_firmware(kaweth, kaweth_new_code, len_kaweth_new_code, 100, 2)) < 0)
{
printk("Error downloading firmware (%d), no net device created\n", result);
kfree(kaweth);
return NULL;
}
// printk("Dowloading firmware fix (jiffies: %x)...\n", jiffies);
if((result = kaweth_download_firmware(kaweth, kaweth_new_code_fix, len_kaweth_new_code_fix, 100, 3)) < 0)
{
printk("Error downloading firmware fix (%d), no net device created\n", result);
kfree(kaweth);
return NULL;
}
// printk("Dowloading firmware trigger (jiffies: %x)...\n", jiffies);
if((result = kaweth_trigger_firmware(kaweth, 100)) < 0)
{
printk("Error triggering firmware (%d), no net device created\n", result);
kfree(kaweth);
return NULL;
}
udelay(1000);
printk("Resetting device (jiffies: %lx)...\n", jiffies);
if(kaweth_reset(kaweth))
{
printk("Error resetting device\n");
kfree(kaweth);
return NULL;
}
printk("Reset device (jiffies: %lx)...\n", jiffies);
}
result = kaweth_read_configuration(kaweth);
printk("Statitstics collection: %x\n", kaweth->configuration.statistics_mask);
printk("Multicast filter limit: %x\n", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1));
printk("MTU: %x\n", kaweth->configuration.segment_size);
printk("Read MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n",
(int)kaweth->configuration.hw_addr[0],
(int)kaweth->configuration.hw_addr[1],
(int)kaweth->configuration.hw_addr[2],
(int)kaweth->configuration.hw_addr[3],
(int)kaweth->configuration.hw_addr[4],
(int)kaweth->configuration.hw_addr[5]);
if(!memcmp(&kaweth->configuration.hw_addr, &bcast_addr, sizeof(bcast_addr)))
{
printk("Firmware not functioning properly, no net device created\n");
kfree(kaweth);
return NULL;
}
for(i = 0; i < sizeof(kaweth->configuration); i++)
{
printk(":%2.2x:", (unsigned int)((unsigned char *)&kaweth->configuration)[i]);
}
printk("\n");
if(result < 0)
{
printk("Error reading configuration (%d), no net device created\n", result);
return kaweth;
}
result = kaweth_set_urb_size(kaweth, KAWETH_BUF_SIZE);
if(result < 0)
{
printk("Error setting URB size\n");
return kaweth;
}
result = kaweth_set_sofs_wait(kaweth, KAWETH_SOFS_TO_WAIT);
if(result < 0)
{
printk("Error setting SOFS wait\n");
return kaweth;
}
result = kaweth_set_receive_filter(kaweth, KAWETH_PACKET_FILTER_DIRECTED |
KAWETH_PACKET_FILTER_BROADCAST |
KAWETH_PACKET_FILTER_MULTICAST);
if(result < 0)
{
printk("Error setting receive filter\n");
return kaweth;
}
printk("Initializing net device...\n");
kaweth->tx_urb = usb_alloc_urb(0);
kaweth->rx_urb = usb_alloc_urb(0);
kaweth->net = init_etherdev(0, 0);
memcpy(kaweth->net->broadcast, &bcast_addr, sizeof(bcast_addr));
memcpy(kaweth->net->dev_addr, &kaweth->configuration.hw_addr, sizeof(kaweth->configuration.hw_addr));
kaweth->net->priv = kaweth;
kaweth->net->open = kaweth_open;
kaweth->net->stop = kaweth_close;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 3, 0)
kaweth->net->watchdog_timeo = KAWETH_TX_TIMEOUT;
kaweth->net->tx_timeout = kaweth_tx_timeout;
#endif
kaweth->net->do_ioctl = kaweth_ioctl;
kaweth->net->hard_start_xmit = kaweth_start_xmit;
kaweth->net->set_multicast_list = kaweth_set_rx_mode;
kaweth->net->get_stats = kaweth_netdev_stats;
kaweth->net->mtu = kaweth->configuration.segment_size;
memset(&kaweth->stats, 0, sizeof(kaweth->stats));
printk("kaweth interface created at %s\n", kaweth->net->name);
printk("Kaweth probe returning...\n");
return kaweth;
}
/****************************************************************
* kaweth_disconnect
****************************************************************/
static void kaweth_disconnect(struct usb_device *dev, void *ptr)
{
struct kaweth_device *kaweth = ptr;
printk("Unregistering kaweth\n");
if (!kaweth) {
warn("unregistering non-existant device");
return;
}
if(kaweth->net)
{
if(kaweth->net->flags & IFF_UP)
{
printk("Closing net device\n");
dev_close(kaweth->net);
}
printk("Unregistering net device\n");
unregister_netdev(kaweth->net);
}
usb_free_urb(kaweth->rx_urb);
usb_free_urb(kaweth->tx_urb);
kfree(kaweth);
}
/****************************************************************
* kaweth_init
****************************************************************/
int __init kaweth_init(void)
{
printk("Kawasaki USB->Ethernet Driver loading...\n");
return usb_register(&kaweth_driver);
}
/****************************************************************
* kaweth_exit
****************************************************************/
void __exit kaweth_exit(void)
{
usb_deregister(&kaweth_driver);
}
module_init(kaweth_init);
module_exit(kaweth_exit);
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