patch-2.2.18 linux/drivers/usb/kaweth.c
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- Lines: 1031
- Date:
Sat Nov 18 18:01:24 2000
- Orig file:
v2.2.17/drivers/usb/kaweth.c
- Orig date:
Thu Jan 1 01:00:00 1970
diff -u --new-file --recursive --exclude-from /usr/src/exclude v2.2.17/drivers/usb/kaweth.c linux/drivers/usb/kaweth.c
@@ -0,0 +1,1030 @@
+/****************************************************************
+ *
+ * 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);
+
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)