diff options
Diffstat (limited to 'drivers/usb/net/kaweth.c')
| -rw-r--r-- | drivers/usb/net/kaweth.c | 1337 |
1 files changed, 0 insertions, 1337 deletions
diff --git a/drivers/usb/net/kaweth.c b/drivers/usb/net/kaweth.c deleted file mode 100644 index 60d29440f31..00000000000 --- a/drivers/usb/net/kaweth.c +++ /dev/null @@ -1,1337 +0,0 @@ -/**************************************************************** - * - * kaweth.c - driver for KL5KUSB101 based USB->Ethernet - * - * (c) 2000 Interlan Communications - * (c) 2000 Stephane Alnet - * (C) 2001 Brad Hards - * (C) 2002 Oliver Neukum - * - * 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 and Ed Surprenant 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. - * - ****************************************************************/ - -/* TODO: - * Fix in_interrupt() problem - * Develop test procedures for USB net interfaces - * Run test procedures - * Fix bugs from previous two steps - * Snoop other OSs for any tricks we're not doing - * SMP locking - * Reduce arbitrary timeouts - * Smart multicast support - * Temporary MAC change support - * Tunable SOFs parameter - ioctl()? - * Ethernet stats collection - * Code formatting improvements - */ - -#include <linux/module.h> -#include <linux/slab.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 <linux/ethtool.h> -#include <linux/dma-mapping.h> -#include <linux/wait.h> -#include <asm/uaccess.h> -#include <asm/semaphore.h> -#include <asm/byteorder.h> - -#undef DEBUG - -#include "kawethfw.h" - -#define KAWETH_MTU 1514 -#define KAWETH_BUF_SIZE 1664 -#define KAWETH_TX_TIMEOUT (5 * HZ) -#define KAWETH_SCRATCH_SIZE 32 -#define KAWETH_FIRMWARE_BUF_SIZE 4096 -#define KAWETH_CONTROL_TIMEOUT (30 * HZ) - -#define KAWETH_STATUS_BROKEN 0x0000001 -#define KAWETH_STATUS_CLOSING 0x0000002 -#define KAWETH_STATUS_SUSPENDING 0x0000004 - -#define KAWETH_STATUS_BLOCKED (KAWETH_STATUS_CLOSING | KAWETH_STATUS_SUSPENDING) - -#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 - -/* Table 7 */ -#define KAWETH_COMMAND_GET_ETHERNET_DESC 0x00 -#define KAWETH_COMMAND_MULTICAST_FILTERS 0x01 -#define KAWETH_COMMAND_SET_PACKET_FILTER 0x02 -#define KAWETH_COMMAND_STATISTICS 0x03 -#define KAWETH_COMMAND_SET_TEMP_MAC 0x06 -#define KAWETH_COMMAND_GET_TEMP_MAC 0x07 -#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 - -#define INTBUFFERSIZE 4 - -#define STATE_OFFSET 0 -#define STATE_MASK 0x40 -#define STATE_SHIFT 5 - -#define IS_BLOCKED(s) (s & KAWETH_STATUS_BLOCKED) - - -MODULE_AUTHOR("Michael Zappe <zapman@interlan.net>, Stephane Alnet <stephane@u-picardie.fr>, Brad Hards <bhards@bigpond.net.au> and Oliver Neukum <oliver@neukum.org>"); -MODULE_DESCRIPTION("KL5USB101 USB Ethernet driver"); -MODULE_LICENSE("GPL"); - -static const char driver_name[] = "kaweth"; - -static int kaweth_probe( - struct usb_interface *intf, - const struct usb_device_id *id /* from id_table */ - ); -static void kaweth_disconnect(struct usb_interface *intf); -static int kaweth_internal_control_msg(struct usb_device *usb_dev, - unsigned int pipe, - struct usb_ctrlrequest *cmd, void *data, - int len, int timeout); -static int kaweth_suspend(struct usb_interface *intf, pm_message_t message); -static int kaweth_resume(struct usb_interface *intf); - -/**************************************************************** - * usb_device_id - ****************************************************************/ -static struct usb_device_id usb_klsi_table[] = { - { USB_DEVICE(0x03e8, 0x0008) }, /* AOX Endpoints USB Ethernet */ - { USB_DEVICE(0x04bb, 0x0901) }, /* I-O DATA USB-ET/T */ - { USB_DEVICE(0x0506, 0x03e8) }, /* 3Com 3C19250 */ - { USB_DEVICE(0x0506, 0x11f8) }, /* 3Com 3C460 */ - { USB_DEVICE(0x0557, 0x2002) }, /* ATEN USB Ethernet */ - { USB_DEVICE(0x0557, 0x4000) }, /* D-Link DSB-650C */ - { USB_DEVICE(0x0565, 0x0002) }, /* Peracom Enet */ - { USB_DEVICE(0x0565, 0x0003) }, /* Optus@Home UEP1045A */ - { USB_DEVICE(0x0565, 0x0005) }, /* Peracom Enet2 */ - { USB_DEVICE(0x05e9, 0x0008) }, /* KLSI KL5KUSB101B */ - { USB_DEVICE(0x05e9, 0x0009) }, /* KLSI KL5KUSB101B (Board change) */ - { USB_DEVICE(0x066b, 0x2202) }, /* Linksys USB10T */ - { USB_DEVICE(0x06e1, 0x0008) }, /* ADS USB-10BT */ - { USB_DEVICE(0x06e1, 0x0009) }, /* ADS USB-10BT */ - { USB_DEVICE(0x0707, 0x0100) }, /* SMC 2202USB */ - { USB_DEVICE(0x07aa, 0x0001) }, /* Correga K.K. */ - { USB_DEVICE(0x07b8, 0x4000) }, /* D-Link DU-E10 */ - { USB_DEVICE(0x0846, 0x1001) }, /* NetGear EA-101 */ - { USB_DEVICE(0x0846, 0x1002) }, /* NetGear EA-101 */ - { USB_DEVICE(0x085a, 0x0008) }, /* PortGear Ethernet Adapter */ - { USB_DEVICE(0x085a, 0x0009) }, /* PortGear Ethernet Adapter */ - { USB_DEVICE(0x087d, 0x5704) }, /* Jaton USB Ethernet Device Adapter */ - { USB_DEVICE(0x0951, 0x0008) }, /* Kingston Technology USB Ethernet Adapter */ - { USB_DEVICE(0x095a, 0x3003) }, /* Portsmith Express Ethernet Adapter */ - { USB_DEVICE(0x10bd, 0x1427) }, /* ASANTE USB To Ethernet Adapter */ - { USB_DEVICE(0x1342, 0x0204) }, /* Mobility USB-Ethernet Adapter */ - { USB_DEVICE(0x13d2, 0x0400) }, /* Shark Pocket Adapter */ - { USB_DEVICE(0x1485, 0x0001) }, /* Silicom U2E */ - { USB_DEVICE(0x1485, 0x0002) }, /* Psion Dacom Gold Port Ethernet */ - { USB_DEVICE(0x1645, 0x0005) }, /* Entrega E45 */ - { USB_DEVICE(0x1645, 0x0008) }, /* Entrega USB Ethernet Adapter */ - { USB_DEVICE(0x1645, 0x8005) }, /* PortGear Ethernet Adapter */ - { USB_DEVICE(0x1668, 0x0323) }, /* Actiontec USB Ethernet */ - { USB_DEVICE(0x2001, 0x4000) }, /* D-link DSB-650C */ - {} /* Null terminator */ -}; - -MODULE_DEVICE_TABLE (usb, usb_klsi_table); - -/**************************************************************** - * kaweth_driver - ****************************************************************/ -static struct usb_driver kaweth_driver = { - .name = driver_name, - .probe = kaweth_probe, - .disconnect = kaweth_disconnect, - .suspend = kaweth_suspend, - .resume = kaweth_resume, - .id_table = usb_klsi_table, - .supports_autosuspend = 1, -}; - -typedef __u8 eth_addr_t[6]; - -/**************************************************************** - * usb_eth_dev - ****************************************************************/ -struct usb_eth_dev { - char *name; - __u16 vendor; - __u16 device; - void *pdata; -}; - -/**************************************************************** - * kaweth_ethernet_configuration - * Refer Table 8 - ****************************************************************/ -struct kaweth_ethernet_configuration -{ - __u8 size; - __u8 reserved1; - __u8 reserved2; - eth_addr_t hw_addr; - __u32 statistics_mask; - __le16 segment_size; - __u16 max_multicast_filters; - __u8 reserved3; -} __attribute__ ((packed)); - -/**************************************************************** - * kaweth_device - ****************************************************************/ -struct kaweth_device -{ - spinlock_t device_lock; - - __u32 status; - int end; - int suspend_lowmem_rx; - int suspend_lowmem_ctrl; - int linkstate; - int opened; - struct delayed_work lowmem_work; - - struct usb_device *dev; - struct usb_interface *intf; - struct net_device *net; - wait_queue_head_t term_wait; - - struct urb *rx_urb; - struct urb *tx_urb; - struct urb *irq_urb; - - dma_addr_t intbufferhandle; - __u8 *intbuffer; - dma_addr_t rxbufferhandle; - __u8 *rx_buf; - - - struct sk_buff *tx_skb; - - __u8 *firmware_buf; - __u8 scratch[KAWETH_SCRATCH_SIZE]; - __u16 packet_filter_bitmap; - - struct kaweth_ethernet_configuration configuration; - - struct net_device_stats stats; -}; - - -/**************************************************************** - * 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) -{ - struct usb_ctrlrequest *dr; - - dbg("kaweth_control()"); - - if(in_interrupt()) { - dbg("in_interrupt()"); - return -EBUSY; - } - - dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); - - if (!dr) { - dbg("kmalloc() failed"); - return -ENOMEM; - } - - dr->bRequestType= requesttype; - dr->bRequest = request; - dr->wValue = cpu_to_le16p(&value); - dr->wIndex = cpu_to_le16p(&index); - dr->wLength = cpu_to_le16p(&size); - - return kaweth_internal_control_msg(kaweth->dev, - pipe, - dr, - data, - size, - timeout); -} - -/**************************************************************** - * kaweth_read_configuration - ****************************************************************/ -static int kaweth_read_configuration(struct kaweth_device *kaweth) -{ - int retval; - - dbg("Reading kaweth configuration"); - - 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; - - dbg("Setting URB size to %d", (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->scratch, - 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; - - dbg("Set SOFS wait to %d", (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->scratch, - 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; - - dbg("Set receive filter to %d", (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->scratch, - 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) { - err("Firmware too big: %d", 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; - - dbg("High: %i, Low:%i", kaweth->firmware_buf[3], - kaweth->firmware_buf[2]); - - dbg("Downloading firmware at %p to kaweth device at %p", - data, - kaweth); - dbg("Firmware length: %d", 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] = 0x01; - kaweth->firmware_buf[3] = 0x00; - kaweth->firmware_buf[4] = 0x06; - kaweth->firmware_buf[5] = interrupt; - kaweth->firmware_buf[6] = 0x00; - kaweth->firmware_buf[7] = 0x00; - - dbg("Triggering firmware"); - - 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; - - dbg("kaweth_reset(%p)", kaweth); - result = kaweth_control(kaweth, - usb_sndctrlpipe(kaweth->dev, 0), - USB_REQ_SET_CONFIGURATION, - 0, - kaweth->dev->config[0].desc.bConfigurationValue, - 0, - NULL, - 0, - KAWETH_CONTROL_TIMEOUT); - - mdelay(10); - - dbg("kaweth_reset() returns %d.",result); - - return result; -} - -static void kaweth_usb_receive(struct urb *); -static int kaweth_resubmit_rx_urb(struct kaweth_device *, gfp_t); - -/**************************************************************** - int_callback -*****************************************************************/ - -static void kaweth_resubmit_int_urb(struct kaweth_device *kaweth, gfp_t mf) -{ - int status; - - status = usb_submit_urb (kaweth->irq_urb, mf); - if (unlikely(status == -ENOMEM)) { - kaweth->suspend_lowmem_ctrl = 1; - schedule_delayed_work(&kaweth->lowmem_work, HZ/4); - } else { - kaweth->suspend_lowmem_ctrl = 0; - } - - if (status) - err ("can't resubmit intr, %s-%s, status %d", - kaweth->dev->bus->bus_name, - kaweth->dev->devpath, status); -} - -static void int_callback(struct urb *u) -{ - struct kaweth_device *kaweth = u->context; - int act_state; - - switch (u->status) { - case 0: /* success */ - break; - case -ECONNRESET: /* unlink */ - case -ENOENT: - case -ESHUTDOWN: - return; - /* -EPIPE: should clear the halt */ - default: /* error */ - goto resubmit; - } - - /* we check the link state to report changes */ - if (kaweth->linkstate != (act_state = ( kaweth->intbuffer[STATE_OFFSET] | STATE_MASK) >> STATE_SHIFT)) { - if (act_state) - netif_carrier_on(kaweth->net); - else - netif_carrier_off(kaweth->net); - - kaweth->linkstate = act_state; - } -resubmit: - kaweth_resubmit_int_urb(kaweth, GFP_ATOMIC); -} - -static void kaweth_resubmit_tl(struct work_struct *work) -{ - struct kaweth_device *kaweth = - container_of(work, struct kaweth_device, lowmem_work.work); - - if (IS_BLOCKED(kaweth->status)) - return; - - if (kaweth->suspend_lowmem_rx) - kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); - - if (kaweth->suspend_lowmem_ctrl) - kaweth_resubmit_int_urb(kaweth, GFP_NOIO); -} - - -/**************************************************************** - * kaweth_resubmit_rx_urb - ****************************************************************/ -static int kaweth_resubmit_rx_urb(struct kaweth_device *kaweth, - gfp_t mem_flags) -{ - int result; - - usb_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 |= URB_NO_TRANSFER_DMA_MAP; - kaweth->rx_urb->transfer_dma = kaweth->rxbufferhandle; - - if((result = usb_submit_urb(kaweth->rx_urb, mem_flags))) { - if (result == -ENOMEM) { - kaweth->suspend_lowmem_rx = 1; - schedule_delayed_work(&kaweth->lowmem_work, HZ/4); - } - err("resubmitting rx_urb %d failed", result); - } else { - kaweth->suspend_lowmem_rx = 0; - } - - return result; -} - -static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth); - -/**************************************************************** - * 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; - int count2 = urb->transfer_buffer_length; - - __u16 pkt_len = le16_to_cpup((__le16 *)kaweth->rx_buf); - - struct sk_buff *skb; - - if(unlikely(urb->status == -ECONNRESET || urb->status == -ESHUTDOWN)) - /* we are killed - set a flag and wake the disconnect handler */ - { - kaweth->end = 1; - wake_up(&kaweth->term_wait); - return; - } - - spin_lock(&kaweth->device_lock); - if (IS_BLOCKED(kaweth->status)) { - spin_unlock(&kaweth->device_lock); - return; - } - spin_unlock(&kaweth->device_lock); - - if(urb->status && urb->status != -EREMOTEIO && count != 1) { - err("%s RX status: %d count: %d packet_len: %d", - net->name, - urb->status, - count, - (int)pkt_len); - kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); - return; - } - - if(kaweth->net && (count > 2)) { - if(pkt_len > (count - 2)) { - err("Packet length too long for USB frame (pkt_len: %x, count: %x)",pkt_len, count); - err("Packet len & 2047: %x", pkt_len & 2047); - err("Count 2: %x", count2); - kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); - return; - } - - if(!(skb = dev_alloc_skb(pkt_len+2))) { - kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); - return; - } - - skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ - - 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, GFP_ATOMIC); -} - -/**************************************************************** - * kaweth_open - ****************************************************************/ -static int kaweth_open(struct net_device *net) -{ - struct kaweth_device *kaweth = netdev_priv(net); - int res; - - dbg("Opening network device."); - - res = usb_autopm_get_interface(kaweth->intf); - if (res) { - err("Interface cannot be resumed."); - return -EIO; - } - res = kaweth_resubmit_rx_urb(kaweth, GFP_KERNEL); - if (res) - goto err_out; - - usb_fill_int_urb( - kaweth->irq_urb, - kaweth->dev, - usb_rcvintpipe(kaweth->dev, 3), - kaweth->intbuffer, - INTBUFFERSIZE, - int_callback, - kaweth, - 250); /* overriding the descriptor */ - kaweth->irq_urb->transfer_dma = kaweth->intbufferhandle; - kaweth->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; - - res = usb_submit_urb(kaweth->irq_urb, GFP_KERNEL); - if (res) { - usb_kill_urb(kaweth->rx_urb); - goto err_out; - } - kaweth->opened = 1; - - netif_start_queue(net); - - kaweth_async_set_rx_mode(kaweth); - return 0; - -err_out: - usb_autopm_enable(kaweth->intf); - return -EIO; -} - -/**************************************************************** - * kaweth_kill_urbs - ****************************************************************/ -static void kaweth_kill_urbs(struct kaweth_device *kaweth) -{ - usb_kill_urb(kaweth->irq_urb); - usb_kill_urb(kaweth->rx_urb); - usb_kill_urb(kaweth->tx_urb); - - flush_scheduled_work(); - - /* a scheduled work may have resubmitted, - we hit them again */ - usb_kill_urb(kaweth->irq_urb); - usb_kill_urb(kaweth->rx_urb); -} - -/**************************************************************** - * kaweth_close - ****************************************************************/ -static int kaweth_close(struct net_device *net) -{ - struct kaweth_device *kaweth = netdev_priv(net); - - netif_stop_queue(net); - kaweth->opened = 0; - - kaweth->status |= KAWETH_STATUS_CLOSING; - - kaweth_kill_urbs(kaweth); - - kaweth->status &= ~KAWETH_STATUS_CLOSING; - - usb_autopm_enable(kaweth->intf); - - return 0; -} - -static void kaweth_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) -{ - struct kaweth_device *kaweth = netdev_priv(dev); - - strlcpy(info->driver, driver_name, sizeof(info->driver)); - usb_make_path(kaweth->dev, info->bus_info, sizeof (info->bus_info)); -} - -static u32 kaweth_get_link(struct net_device *dev) -{ - struct kaweth_device *kaweth = netdev_priv(dev); - - return kaweth->linkstate; -} - -static struct ethtool_ops ops = { - .get_drvinfo = kaweth_get_drvinfo, - .get_link = kaweth_get_link -}; - -/**************************************************************** - * kaweth_usb_transmit_complete - ****************************************************************/ -static void kaweth_usb_transmit_complete(struct urb *urb) -{ - struct kaweth_device *kaweth = urb->context; - struct sk_buff *skb = kaweth->tx_skb; - - if (unlikely(urb->status != 0)) - if (urb->status != -ENOENT) - dbg("%s: TX status %d.", kaweth->net->name, urb->status); - - netif_wake_queue(kaweth->net); - dev_kfree_skb_irq(skb); -} - -/**************************************************************** - * kaweth_start_xmit - ****************************************************************/ -static int kaweth_start_xmit(struct sk_buff *skb, struct net_device *net) -{ - struct kaweth_device *kaweth = netdev_priv(net); - __le16 *private_header; - - int res; - - spin_lock(&kaweth->device_lock); - - kaweth_async_set_rx_mode(kaweth); - netif_stop_queue(net); - if (IS_BLOCKED(kaweth->status)) { - goto skip; - } - - /* We now decide whether we can put our special header into the sk_buff */ - if (skb_cloned(skb) || skb_headroom(skb) < 2) { - /* no such luck - we make our own */ - struct sk_buff *copied_skb; - copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC); - dev_kfree_skb_irq(skb); - skb = copied_skb; - if (!copied_skb) { - kaweth->stats.tx_errors++; - netif_start_queue(net); - spin_unlock(&kaweth->device_lock); - return 0; - } - } - - private_header = (__le16 *)__skb_push(skb, 2); - *private_header = cpu_to_le16(skb->len-2); - kaweth->tx_skb = skb; - - usb_fill_bulk_urb(kaweth->tx_urb, - kaweth->dev, - usb_sndbulkpipe(kaweth->dev, 2), - private_header, - skb->len, - kaweth_usb_transmit_complete, - kaweth); - kaweth->end = 0; - - if((res = usb_submit_urb(kaweth->tx_urb, GFP_ATOMIC))) - { - warn("kaweth failed tx_urb %d", res); -skip: - kaweth->stats.tx_errors++; - - netif_start_queue(net); - dev_kfree_skb_irq(skb); - } - else - { - kaweth->stats.tx_packets++; - kaweth->stats.tx_bytes += skb->len; - net->trans_start = jiffies; - } - - 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 = netdev_priv(net); - - __u16 packet_filter_bitmap = KAWETH_PACKET_FILTER_DIRECTED | - KAWETH_PACKET_FILTER_BROADCAST | - KAWETH_PACKET_FILTER_MULTICAST; - - dbg("Setting Rx mode to %d", packet_filter_bitmap); - - netif_stop_queue(net); - - if (net->flags & IFF_PROMISC) { - packet_filter_bitmap |= KAWETH_PACKET_FILTER_PROMISCUOUS; - } - else if ((net->mc_count) || (net->flags & IFF_ALLMULTI)) { - packet_filter_bitmap |= KAWETH_PACKET_FILTER_ALL_MULTICAST; - } - - kaweth->packet_filter_bitmap = packet_filter_bitmap; - netif_wake_queue(net); -} - -/**************************************************************** - * kaweth_async_set_rx_mode - ****************************************************************/ -static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth) -{ - __u16 packet_filter_bitmap = kaweth->packet_filter_bitmap; - kaweth->packet_filter_bitmap = 0; - if (packet_filter_bitmap == 0) - return; - - { - int result; - 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->scratch, - 0, - KAWETH_CONTROL_TIMEOUT); - - if(result < 0) { - err("Failed to set Rx mode: %d", result); - } - else { - dbg("Set Rx mode to %d", packet_filter_bitmap); - } - } -} - -/**************************************************************** - * kaweth_netdev_stats - ****************************************************************/ -static struct net_device_stats *kaweth_netdev_stats(struct net_device *dev) -{ - struct kaweth_device *kaweth = netdev_priv(dev); - return &kaweth->stats; -} - -/**************************************************************** - * kaweth_tx_timeout - ****************************************************************/ -static void kaweth_tx_timeout(struct net_device *net) -{ - struct kaweth_device *kaweth = netdev_priv(net); - - warn("%s: Tx timed out. Resetting.", net->name); - kaweth->stats.tx_errors++; - net->trans_start = jiffies; - - usb_unlink_urb(kaweth->tx_urb); -} - -/**************************************************************** - * kaweth_suspend - ****************************************************************/ -static int kaweth_suspend(struct usb_interface *intf, pm_message_t message) -{ - struct kaweth_device *kaweth = usb_get_intfdata(intf); - unsigned long flags; - - dbg("Suspending device"); - spin_lock_irqsave(&kaweth->device_lock, flags); - kaweth->status |= KAWETH_STATUS_SUSPENDING; - spin_unlock_irqrestore(&kaweth->device_lock, flags); - - kaweth_kill_urbs(kaweth); - return 0; -} - -/**************************************************************** - * kaweth_resume - ****************************************************************/ -static int kaweth_resume(struct usb_interface *intf) -{ - struct kaweth_device *kaweth = usb_get_intfdata(intf); - unsigned long flags; - - dbg("Resuming device"); - spin_lock_irqsave(&kaweth->device_lock, flags); - kaweth->status &= ~KAWETH_STATUS_SUSPENDING; - spin_unlock_irqrestore(&kaweth->device_lock, flags); - - if (!kaweth->opened) - return 0; - kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); - kaweth_resubmit_int_urb(kaweth, GFP_NOIO); - - return 0; -} - -/**************************************************************** - * kaweth_probe - ****************************************************************/ -static int kaweth_probe( - struct usb_interface *intf, - const struct usb_device_id *id /* from id_table */ - ) -{ - struct usb_device *dev = interface_to_usbdev(intf); - struct kaweth_device *kaweth; - struct net_device *netdev; - const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; - int result = 0; - - dbg("Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x", - dev->devnum, - le16_to_cpu(dev->descriptor.idVendor), - le16_to_cpu(dev->descriptor.idProduct), - le16_to_cpu(dev->descriptor.bcdDevice)); - - dbg("Device at %p", dev); - - dbg("Descriptor length: %x type: %x", - (int)dev->descriptor.bLength, - (int)dev->descriptor.bDescriptorType); - - netdev = alloc_etherdev(sizeof(*kaweth)); - if (!netdev) - return -ENOMEM; - - kaweth = netdev_priv(netdev); - kaweth->dev = dev; - kaweth->net = netdev; - - spin_lock_init(&kaweth->device_lock); - init_waitqueue_head(&kaweth->term_wait); - - dbg("Resetting."); - - kaweth_reset(kaweth); - - /* - * If high byte of bcdDevice is nonzero, firmware is already - * downloaded. Don't try to do it again, or we'll hang the device. - */ - - if (le16_to_cpu(dev->descriptor.bcdDevice) >> 8) { - info("Firmware present in device."); - } else { - /* Download the firmware */ - info("Downloading firmware..."); - kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL); - if ((result = kaweth_download_firmware(kaweth, - kaweth_new_code, - len_kaweth_new_code, - 100, - 2)) < 0) { - err("Error downloading firmware (%d)", result); - goto err_fw; - } - - if ((result = kaweth_download_firmware(kaweth, - kaweth_new_code_fix, - len_kaweth_new_code_fix, - 100, - 3)) < 0) { - err("Error downloading firmware fix (%d)", result); - goto err_fw; - } - - if ((result = kaweth_download_firmware(kaweth, - kaweth_trigger_code, - len_kaweth_trigger_code, - 126, - 2)) < 0) { - err("Error downloading trigger code (%d)", result); - goto err_fw; - - } - - if ((result = kaweth_download_firmware(kaweth, - kaweth_trigger_code_fix, - len_kaweth_trigger_code_fix, - 126, - 3)) < 0) { - err("Error downloading trigger code fix (%d)", result); - goto err_fw; - } - - - if ((result = kaweth_trigger_firmware(kaweth, 126)) < 0) { - err("Error triggering firmware (%d)", result); - goto err_fw; - } - - /* Device will now disappear for a moment... */ - info("Firmware loaded. I'll be back..."); -err_fw: - free_page((unsigned long)kaweth->firmware_buf); - free_netdev(netdev); - return -EIO; - } - - result = kaweth_read_configuration(kaweth); - - if(result < 0) { - err("Error reading configuration (%d), no net device created", result); - goto err_free_netdev; - } - - info("Statistics collection: %x", kaweth->configuration.statistics_mask); - info("Multicast filter limit: %x", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1)); - info("MTU: %d", le16_to_cpu(kaweth->configuration.segment_size)); - info("Read MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", - (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))) { - err("Firmware not functioning properly, no net device created"); - goto err_free_netdev; - } - - if(kaweth_set_urb_size(kaweth, KAWETH_BUF_SIZE) < 0) { - dbg("Error setting URB size"); - goto err_free_netdev; - } - - if(kaweth_set_sofs_wait(kaweth, KAWETH_SOFS_TO_WAIT) < 0) { - err("Error setting SOFS wait"); - goto err_free_netdev; - } - - result = kaweth_set_receive_filter(kaweth, - KAWETH_PACKET_FILTER_DIRECTED | - KAWETH_PACKET_FILTER_BROADCAST | - KAWETH_PACKET_FILTER_MULTICAST); - - if(result < 0) { - err("Error setting receive filter"); - goto err_free_netdev; - } - - dbg("Initializing net device."); - - kaweth->intf = intf; - - kaweth->tx_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!kaweth->tx_urb) - goto err_free_netdev; - kaweth->rx_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!kaweth->rx_urb) - goto err_only_tx; - kaweth->irq_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!kaweth->irq_urb) - goto err_tx_and_rx; - - kaweth->intbuffer = usb_buffer_alloc( kaweth->dev, - INTBUFFERSIZE, - GFP_KERNEL, - &kaweth->intbufferhandle); - if (!kaweth->intbuffer) - goto err_tx_and_rx_and_irq; - kaweth->rx_buf = usb_buffer_alloc( kaweth->dev, - KAWETH_BUF_SIZE, - GFP_KERNEL, - &kaweth->rxbufferhandle); - if (!kaweth->rx_buf) - goto err_all_but_rxbuf; - - memcpy(netdev->broadcast, &bcast_addr, sizeof(bcast_addr)); - memcpy(netdev->dev_addr, &kaweth->configuration.hw_addr, - sizeof(kaweth->configuration.hw_addr)); - - netdev->open = kaweth_open; - netdev->stop = kaweth_close; - - netdev->watchdog_timeo = KAWETH_TX_TIMEOUT; - netdev->tx_timeout = kaweth_tx_timeout; - - netdev->hard_start_xmit = kaweth_start_xmit; - netdev->set_multicast_list = kaweth_set_rx_mode; - netdev->get_stats = kaweth_netdev_stats; - netdev->mtu = le16_to_cpu(kaweth->configuration.segment_size); - SET_ETHTOOL_OPS(netdev, &ops); - - /* kaweth is zeroed as part of alloc_netdev */ - - INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl); - - SET_MODULE_OWNER(netdev); - - usb_set_intfdata(intf, kaweth); - -#if 0 -// dma_supported() is deeply broken on almost all architectures - if (dma_supported (&intf->dev, 0xffffffffffffffffULL)) - kaweth->net->features |= NETIF_F_HIGHDMA; -#endif - - SET_NETDEV_DEV(netdev, &intf->dev); - if (register_netdev(netdev) != 0) { - err("Error registering netdev."); - goto err_intfdata; - } - - info("kaweth interface created at %s", kaweth->net->name); - - dbg("Kaweth probe returning."); - - return 0; - -err_intfdata: - usb_set_intfdata(intf, NULL); - usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); -err_all_but_rxbuf: - usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); -err_tx_and_rx_and_irq: - usb_free_urb(kaweth->irq_urb); -err_tx_and_rx: - usb_free_urb(kaweth->rx_urb); -err_only_tx: - usb_free_urb(kaweth->tx_urb); -err_free_netdev: - free_netdev(netdev); - - return -EIO; -} - -/**************************************************************** - * kaweth_disconnect - ****************************************************************/ -static void kaweth_disconnect(struct usb_interface *intf) -{ - struct kaweth_device *kaweth = usb_get_intfdata(intf); - struct net_device *netdev; - - info("Unregistering"); - - usb_set_intfdata(intf, NULL); - if (!kaweth) { - warn("unregistering non-existant device"); - return; - } - netdev = kaweth->net; - - dbg("Unregistering net device"); - unregister_netdev(netdev); - - usb_free_urb(kaweth->rx_urb); - usb_free_urb(kaweth->tx_urb); - usb_free_urb(kaweth->irq_urb); - - usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); - usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); - - free_netdev(netdev); -} - - -// FIXME this completion stuff is a modified clone of -// an OLD version of some stuff in usb.c ... -struct usb_api_data { - wait_queue_head_t wqh; - int done; -}; - -/*-------------------------------------------------------------------* - * completion handler for compatibility wrappers (sync control/bulk) * - *-------------------------------------------------------------------*/ -static void usb_api_blocking_completion(struct urb *urb) -{ - struct usb_api_data *awd = (struct usb_api_data *)urb->context; - - awd->done=1; - wake_up(&awd->wqh); -} - -/*-------------------------------------------------------------------* - * COMPATIBILITY STUFF * - *-------------------------------------------------------------------*/ - -// Starts urb and waits for completion or timeout -static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length) -{ - struct usb_api_data awd; - int status; - - init_waitqueue_head(&awd.wqh); - awd.done = 0; - - urb->context = &awd; - status = usb_submit_urb(urb, GFP_NOIO); - if (status) { - // something went wrong - usb_free_urb(urb); - return status; - } - - if (!wait_event_timeout(awd.wqh, awd.done, timeout)) { - // timeout - warn("usb_control/bulk_msg: timeout"); - usb_kill_urb(urb); // remove urb safely - status = -ETIMEDOUT; - } - else { - status = urb->status; - } - - if (actual_length) { - *actual_length = urb->actual_length; - } - - usb_free_urb(urb); - return status; -} - -/*-------------------------------------------------------------------*/ -// returns status (negative) or length (positive) -static int kaweth_internal_control_msg(struct usb_device *usb_dev, - unsigned int pipe, - struct usb_ctrlrequest *cmd, void *data, - int len, int timeout) -{ - struct urb *urb; - int retv; - int length = 0; /* shut up GCC */ - - urb = usb_alloc_urb(0, GFP_NOIO); - if (!urb) - return -ENOMEM; - - usb_fill_control_urb(urb, usb_dev, pipe, (unsigned char*)cmd, data, - len, usb_api_blocking_completion, NULL); - - retv = usb_start_wait_urb(urb, timeout, &length); - if (retv < 0) { - return retv; - } - else { - return length; - } -} - - -/**************************************************************** - * kaweth_init - ****************************************************************/ -static int __init kaweth_init(void) -{ - dbg("Driver loading"); - return usb_register(&kaweth_driver); -} - -/**************************************************************** - * kaweth_exit - ****************************************************************/ -static void __exit kaweth_exit(void) -{ - usb_deregister(&kaweth_driver); -} - -module_init(kaweth_init); -module_exit(kaweth_exit); - - - - - - - - - |