1521 lines
38 KiB
C
1521 lines
38 KiB
C
/*
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* Copyright (c) 1999-2005 Petko Manolov (petkan@users.sourceforge.net)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* ChangeLog:
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* .... Most of the time spent on reading sources & docs.
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* v0.2.x First official release for the Linux kernel.
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* v0.3.0 Beutified and structured, some bugs fixed.
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* v0.3.x URBifying bulk requests and bugfixing. First relatively
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* stable release. Still can touch device's registers only
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* from top-halves.
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* v0.4.0 Control messages remained unurbified are now URBs.
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* Now we can touch the HW at any time.
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* v0.4.9 Control urbs again use process context to wait. Argh...
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* Some long standing bugs (enable_net_traffic) fixed.
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* Also nasty trick about resubmiting control urb from
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* interrupt context used. Please let me know how it
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* behaves. Pegasus II support added since this version.
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* TODO: suppressing HCD warnings spewage on disconnect.
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* v0.4.13 Ethernet address is now set at probe(), not at open()
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* time as this seems to break dhcpd.
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* v0.5.0 branch to 2.5.x kernels
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* v0.5.1 ethtool support added
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* v0.5.5 rx socket buffers are in a pool and the their allocation
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* is out of the interrupt routine.
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*/
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/ethtool.h>
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#include <linux/mii.h>
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#include <linux/usb.h>
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#include <linux/module.h>
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#include <asm/byteorder.h>
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#include <asm/uaccess.h>
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#include "pegasus.h"
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/*
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* Version Information
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*/
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#define DRIVER_VERSION "v0.6.14 (2006/09/27)"
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#define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>"
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#define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver"
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static const char driver_name[] = "pegasus";
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#undef PEGASUS_WRITE_EEPROM
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#define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \
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BMSR_100FULL | BMSR_ANEGCAPABLE)
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static int loopback = 0;
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static int mii_mode = 0;
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static char *devid=NULL;
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static struct usb_eth_dev usb_dev_id[] = {
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#define PEGASUS_DEV(pn, vid, pid, flags) \
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{.name = pn, .vendor = vid, .device = pid, .private = flags},
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#include "pegasus.h"
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#undef PEGASUS_DEV
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{NULL, 0, 0, 0},
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{NULL, 0, 0, 0}
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};
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static struct usb_device_id pegasus_ids[] = {
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#define PEGASUS_DEV(pn, vid, pid, flags) \
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{.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid},
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#include "pegasus.h"
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#undef PEGASUS_DEV
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{},
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{}
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};
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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module_param(loopback, bool, 0);
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module_param(mii_mode, bool, 0);
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module_param(devid, charp, 0);
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MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)");
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MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0");
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MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'");
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/* use ethtool to change the level for any given device */
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static int msg_level = -1;
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module_param (msg_level, int, 0);
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MODULE_PARM_DESC (msg_level, "Override default message level");
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MODULE_DEVICE_TABLE(usb, pegasus_ids);
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static int update_eth_regs_async(pegasus_t *);
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/* Aargh!!! I _really_ hate such tweaks */
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static void ctrl_callback(struct urb *urb)
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{
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pegasus_t *pegasus = urb->context;
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if (!pegasus)
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return;
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switch (urb->status) {
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case 0:
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if (pegasus->flags & ETH_REGS_CHANGE) {
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pegasus->flags &= ~ETH_REGS_CHANGE;
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pegasus->flags |= ETH_REGS_CHANGED;
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update_eth_regs_async(pegasus);
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return;
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}
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break;
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case -EINPROGRESS:
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return;
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case -ENOENT:
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break;
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default:
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if (netif_msg_drv(pegasus) && printk_ratelimit())
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dev_dbg(&pegasus->intf->dev, "%s, status %d\n",
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__func__, urb->status);
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}
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pegasus->flags &= ~ETH_REGS_CHANGED;
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wake_up(&pegasus->ctrl_wait);
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}
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static int get_registers(pegasus_t * pegasus, __u16 indx, __u16 size,
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void *data)
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{
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int ret;
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char *buffer;
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DECLARE_WAITQUEUE(wait, current);
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buffer = kmalloc(size, GFP_KERNEL);
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if (!buffer) {
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if (netif_msg_drv(pegasus))
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dev_warn(&pegasus->intf->dev, "out of memory in %s\n",
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__func__);
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return -ENOMEM;
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}
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add_wait_queue(&pegasus->ctrl_wait, &wait);
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set_current_state(TASK_UNINTERRUPTIBLE);
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while (pegasus->flags & ETH_REGS_CHANGED)
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schedule();
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remove_wait_queue(&pegasus->ctrl_wait, &wait);
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set_current_state(TASK_RUNNING);
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pegasus->dr.bRequestType = PEGASUS_REQT_READ;
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pegasus->dr.bRequest = PEGASUS_REQ_GET_REGS;
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pegasus->dr.wValue = cpu_to_le16(0);
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pegasus->dr.wIndex = cpu_to_le16p(&indx);
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pegasus->dr.wLength = cpu_to_le16p(&size);
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pegasus->ctrl_urb->transfer_buffer_length = size;
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usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
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usb_rcvctrlpipe(pegasus->usb, 0),
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(char *) &pegasus->dr,
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buffer, size, ctrl_callback, pegasus);
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add_wait_queue(&pegasus->ctrl_wait, &wait);
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set_current_state(TASK_UNINTERRUPTIBLE);
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/* using ATOMIC, we'd never wake up if we slept */
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if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) {
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set_current_state(TASK_RUNNING);
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if (ret == -ENODEV)
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netif_device_detach(pegasus->net);
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if (netif_msg_drv(pegasus) && printk_ratelimit())
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dev_err(&pegasus->intf->dev, "%s, status %d\n",
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__func__, ret);
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goto out;
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}
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schedule();
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out:
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remove_wait_queue(&pegasus->ctrl_wait, &wait);
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memcpy(data, buffer, size);
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kfree(buffer);
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return ret;
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}
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static int set_registers(pegasus_t * pegasus, __u16 indx, __u16 size,
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void *data)
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{
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int ret;
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char *buffer;
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DECLARE_WAITQUEUE(wait, current);
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buffer = kmalloc(size, GFP_KERNEL);
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if (!buffer) {
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if (netif_msg_drv(pegasus))
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dev_warn(&pegasus->intf->dev, "out of memory in %s\n",
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__func__);
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return -ENOMEM;
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}
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memcpy(buffer, data, size);
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add_wait_queue(&pegasus->ctrl_wait, &wait);
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set_current_state(TASK_UNINTERRUPTIBLE);
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while (pegasus->flags & ETH_REGS_CHANGED)
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schedule();
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remove_wait_queue(&pegasus->ctrl_wait, &wait);
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set_current_state(TASK_RUNNING);
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pegasus->dr.bRequestType = PEGASUS_REQT_WRITE;
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pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS;
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pegasus->dr.wValue = cpu_to_le16(0);
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pegasus->dr.wIndex = cpu_to_le16p(&indx);
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pegasus->dr.wLength = cpu_to_le16p(&size);
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pegasus->ctrl_urb->transfer_buffer_length = size;
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usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
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usb_sndctrlpipe(pegasus->usb, 0),
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(char *) &pegasus->dr,
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buffer, size, ctrl_callback, pegasus);
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add_wait_queue(&pegasus->ctrl_wait, &wait);
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set_current_state(TASK_UNINTERRUPTIBLE);
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if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) {
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if (ret == -ENODEV)
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netif_device_detach(pegasus->net);
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if (netif_msg_drv(pegasus))
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dev_err(&pegasus->intf->dev, "%s, status %d\n",
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__func__, ret);
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goto out;
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}
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schedule();
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out:
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remove_wait_queue(&pegasus->ctrl_wait, &wait);
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kfree(buffer);
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return ret;
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}
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static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data)
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{
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int ret;
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char *tmp;
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DECLARE_WAITQUEUE(wait, current);
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tmp = kmalloc(1, GFP_KERNEL);
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if (!tmp) {
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if (netif_msg_drv(pegasus))
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dev_warn(&pegasus->intf->dev, "out of memory in %s\n",
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__func__);
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return -ENOMEM;
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}
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memcpy(tmp, &data, 1);
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add_wait_queue(&pegasus->ctrl_wait, &wait);
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set_current_state(TASK_UNINTERRUPTIBLE);
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while (pegasus->flags & ETH_REGS_CHANGED)
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schedule();
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remove_wait_queue(&pegasus->ctrl_wait, &wait);
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set_current_state(TASK_RUNNING);
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pegasus->dr.bRequestType = PEGASUS_REQT_WRITE;
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pegasus->dr.bRequest = PEGASUS_REQ_SET_REG;
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pegasus->dr.wValue = cpu_to_le16(data);
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pegasus->dr.wIndex = cpu_to_le16p(&indx);
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pegasus->dr.wLength = cpu_to_le16(1);
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pegasus->ctrl_urb->transfer_buffer_length = 1;
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usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
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usb_sndctrlpipe(pegasus->usb, 0),
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(char *) &pegasus->dr,
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tmp, 1, ctrl_callback, pegasus);
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add_wait_queue(&pegasus->ctrl_wait, &wait);
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set_current_state(TASK_UNINTERRUPTIBLE);
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if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) {
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if (ret == -ENODEV)
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netif_device_detach(pegasus->net);
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if (netif_msg_drv(pegasus) && printk_ratelimit())
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dev_err(&pegasus->intf->dev, "%s, status %d\n",
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__func__, ret);
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goto out;
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}
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schedule();
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out:
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remove_wait_queue(&pegasus->ctrl_wait, &wait);
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kfree(tmp);
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return ret;
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}
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static int update_eth_regs_async(pegasus_t * pegasus)
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{
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int ret;
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pegasus->dr.bRequestType = PEGASUS_REQT_WRITE;
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pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS;
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pegasus->dr.wValue = 0;
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pegasus->dr.wIndex = cpu_to_le16(EthCtrl0);
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pegasus->dr.wLength = cpu_to_le16(3);
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pegasus->ctrl_urb->transfer_buffer_length = 3;
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usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
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usb_sndctrlpipe(pegasus->usb, 0),
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(char *) &pegasus->dr,
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pegasus->eth_regs, 3, ctrl_callback, pegasus);
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if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) {
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if (ret == -ENODEV)
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netif_device_detach(pegasus->net);
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if (netif_msg_drv(pegasus))
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dev_err(&pegasus->intf->dev, "%s, status %d\n",
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__func__, ret);
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}
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return ret;
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}
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/* Returns 0 on success, error on failure */
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static int read_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 * regd)
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{
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int i;
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__u8 data[4] = { phy, 0, 0, indx };
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__le16 regdi;
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int ret;
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set_register(pegasus, PhyCtrl, 0);
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set_registers(pegasus, PhyAddr, sizeof (data), data);
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set_register(pegasus, PhyCtrl, (indx | PHY_READ));
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for (i = 0; i < REG_TIMEOUT; i++) {
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ret = get_registers(pegasus, PhyCtrl, 1, data);
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if (ret == -ESHUTDOWN)
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goto fail;
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if (data[0] & PHY_DONE)
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break;
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}
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if (i < REG_TIMEOUT) {
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ret = get_registers(pegasus, PhyData, 2, ®di);
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*regd = le16_to_cpu(regdi);
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return ret;
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}
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fail:
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if (netif_msg_drv(pegasus))
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dev_warn(&pegasus->intf->dev, "%s failed\n", __func__);
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return ret;
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}
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static int mdio_read(struct net_device *dev, int phy_id, int loc)
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{
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pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev);
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u16 res;
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read_mii_word(pegasus, phy_id, loc, &res);
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return (int)res;
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}
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static int write_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 regd)
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{
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int i;
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__u8 data[4] = { phy, 0, 0, indx };
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int ret;
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data[1] = (u8) regd;
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data[2] = (u8) (regd >> 8);
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set_register(pegasus, PhyCtrl, 0);
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set_registers(pegasus, PhyAddr, sizeof(data), data);
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set_register(pegasus, PhyCtrl, (indx | PHY_WRITE));
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for (i = 0; i < REG_TIMEOUT; i++) {
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ret = get_registers(pegasus, PhyCtrl, 1, data);
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if (ret == -ESHUTDOWN)
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goto fail;
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if (data[0] & PHY_DONE)
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break;
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}
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if (i < REG_TIMEOUT)
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return ret;
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fail:
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if (netif_msg_drv(pegasus))
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dev_warn(&pegasus->intf->dev, "%s failed\n", __func__);
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return -ETIMEDOUT;
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}
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static void mdio_write(struct net_device *dev, int phy_id, int loc, int val)
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{
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pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev);
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write_mii_word(pegasus, phy_id, loc, val);
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}
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static int read_eprom_word(pegasus_t * pegasus, __u8 index, __u16 * retdata)
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{
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int i;
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__u8 tmp;
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__le16 retdatai;
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int ret;
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set_register(pegasus, EpromCtrl, 0);
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set_register(pegasus, EpromOffset, index);
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set_register(pegasus, EpromCtrl, EPROM_READ);
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for (i = 0; i < REG_TIMEOUT; i++) {
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ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
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if (tmp & EPROM_DONE)
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break;
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if (ret == -ESHUTDOWN)
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goto fail;
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}
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if (i < REG_TIMEOUT) {
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ret = get_registers(pegasus, EpromData, 2, &retdatai);
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*retdata = le16_to_cpu(retdatai);
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return ret;
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}
|
|
|
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fail:
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if (netif_msg_drv(pegasus))
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dev_warn(&pegasus->intf->dev, "%s failed\n", __func__);
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return -ETIMEDOUT;
|
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}
|
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|
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#ifdef PEGASUS_WRITE_EEPROM
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static inline void enable_eprom_write(pegasus_t * pegasus)
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{
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__u8 tmp;
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int ret;
|
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|
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get_registers(pegasus, EthCtrl2, 1, &tmp);
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set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE);
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}
|
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|
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static inline void disable_eprom_write(pegasus_t * pegasus)
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{
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__u8 tmp;
|
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int ret;
|
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|
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get_registers(pegasus, EthCtrl2, 1, &tmp);
|
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set_register(pegasus, EpromCtrl, 0);
|
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set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE);
|
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}
|
|
|
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static int write_eprom_word(pegasus_t * pegasus, __u8 index, __u16 data)
|
|
{
|
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int i;
|
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__u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE };
|
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int ret;
|
|
|
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set_registers(pegasus, EpromOffset, 4, d);
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enable_eprom_write(pegasus);
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set_register(pegasus, EpromOffset, index);
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set_registers(pegasus, EpromData, 2, &data);
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set_register(pegasus, EpromCtrl, EPROM_WRITE);
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|
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for (i = 0; i < REG_TIMEOUT; i++) {
|
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ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
|
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if (ret == -ESHUTDOWN)
|
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goto fail;
|
|
if (tmp & EPROM_DONE)
|
|
break;
|
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}
|
|
disable_eprom_write(pegasus);
|
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if (i < REG_TIMEOUT)
|
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return ret;
|
|
fail:
|
|
if (netif_msg_drv(pegasus))
|
|
dev_warn(&pegasus->intf->dev, "%s failed\n", __func__);
|
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return -ETIMEDOUT;
|
|
}
|
|
#endif /* PEGASUS_WRITE_EEPROM */
|
|
|
|
static inline void get_node_id(pegasus_t * pegasus, __u8 * id)
|
|
{
|
|
int i;
|
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__u16 w16;
|
|
|
|
for (i = 0; i < 3; i++) {
|
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read_eprom_word(pegasus, i, &w16);
|
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((__le16 *) id)[i] = cpu_to_le16p(&w16);
|
|
}
|
|
}
|
|
|
|
static void set_ethernet_addr(pegasus_t * pegasus)
|
|
{
|
|
__u8 node_id[6];
|
|
|
|
if (pegasus->features & PEGASUS_II) {
|
|
get_registers(pegasus, 0x10, sizeof(node_id), node_id);
|
|
} else {
|
|
get_node_id(pegasus, node_id);
|
|
set_registers(pegasus, EthID, sizeof (node_id), node_id);
|
|
}
|
|
memcpy(pegasus->net->dev_addr, node_id, sizeof (node_id));
|
|
}
|
|
|
|
static inline int reset_mac(pegasus_t * pegasus)
|
|
{
|
|
__u8 data = 0x8;
|
|
int i;
|
|
|
|
set_register(pegasus, EthCtrl1, data);
|
|
for (i = 0; i < REG_TIMEOUT; i++) {
|
|
get_registers(pegasus, EthCtrl1, 1, &data);
|
|
if (~data & 0x08) {
|
|
if (loopback & 1)
|
|
break;
|
|
if (mii_mode && (pegasus->features & HAS_HOME_PNA))
|
|
set_register(pegasus, Gpio1, 0x34);
|
|
else
|
|
set_register(pegasus, Gpio1, 0x26);
|
|
set_register(pegasus, Gpio0, pegasus->features);
|
|
set_register(pegasus, Gpio0, DEFAULT_GPIO_SET);
|
|
break;
|
|
}
|
|
}
|
|
if (i == REG_TIMEOUT)
|
|
return -ETIMEDOUT;
|
|
|
|
if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
|
|
usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
|
|
set_register(pegasus, Gpio0, 0x24);
|
|
set_register(pegasus, Gpio0, 0x26);
|
|
}
|
|
if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) {
|
|
__u16 auxmode;
|
|
read_mii_word(pegasus, 3, 0x1b, &auxmode);
|
|
write_mii_word(pegasus, 3, 0x1b, auxmode | 4);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
|
|
{
|
|
__u16 linkpart;
|
|
__u8 data[4];
|
|
pegasus_t *pegasus = netdev_priv(dev);
|
|
int ret;
|
|
|
|
read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart);
|
|
data[0] = 0xc9;
|
|
data[1] = 0;
|
|
if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL))
|
|
data[1] |= 0x20; /* set full duplex */
|
|
if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF))
|
|
data[1] |= 0x10; /* set 100 Mbps */
|
|
if (mii_mode)
|
|
data[1] = 0;
|
|
data[2] = (loopback & 1) ? 0x09 : 0x01;
|
|
|
|
memcpy(pegasus->eth_regs, data, sizeof (data));
|
|
ret = set_registers(pegasus, EthCtrl0, 3, data);
|
|
|
|
if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
|
|
usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 ||
|
|
usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
|
|
u16 auxmode;
|
|
read_mii_word(pegasus, 0, 0x1b, &auxmode);
|
|
write_mii_word(pegasus, 0, 0x1b, auxmode | 4);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void fill_skb_pool(pegasus_t * pegasus)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < RX_SKBS; i++) {
|
|
if (pegasus->rx_pool[i])
|
|
continue;
|
|
pegasus->rx_pool[i] = dev_alloc_skb(PEGASUS_MTU + 2);
|
|
/*
|
|
** we give up if the allocation fail. the tasklet will be
|
|
** rescheduled again anyway...
|
|
*/
|
|
if (pegasus->rx_pool[i] == NULL)
|
|
return;
|
|
skb_reserve(pegasus->rx_pool[i], 2);
|
|
}
|
|
}
|
|
|
|
static void free_skb_pool(pegasus_t * pegasus)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < RX_SKBS; i++) {
|
|
if (pegasus->rx_pool[i]) {
|
|
dev_kfree_skb(pegasus->rx_pool[i]);
|
|
pegasus->rx_pool[i] = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
static inline struct sk_buff *pull_skb(pegasus_t * pegasus)
|
|
{
|
|
int i;
|
|
struct sk_buff *skb;
|
|
|
|
for (i = 0; i < RX_SKBS; i++) {
|
|
if (likely(pegasus->rx_pool[i] != NULL)) {
|
|
skb = pegasus->rx_pool[i];
|
|
pegasus->rx_pool[i] = NULL;
|
|
return skb;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void read_bulk_callback(struct urb *urb)
|
|
{
|
|
pegasus_t *pegasus = urb->context;
|
|
struct net_device *net;
|
|
int rx_status, count = urb->actual_length;
|
|
u8 *buf = urb->transfer_buffer;
|
|
__u16 pkt_len;
|
|
|
|
if (!pegasus)
|
|
return;
|
|
|
|
net = pegasus->net;
|
|
if (!netif_device_present(net) || !netif_running(net))
|
|
return;
|
|
|
|
switch (urb->status) {
|
|
case 0:
|
|
break;
|
|
case -ETIME:
|
|
if (netif_msg_rx_err(pegasus))
|
|
pr_debug("%s: reset MAC\n", net->name);
|
|
pegasus->flags &= ~PEGASUS_RX_BUSY;
|
|
break;
|
|
case -EPIPE: /* stall, or disconnect from TT */
|
|
/* FIXME schedule work to clear the halt */
|
|
if (netif_msg_rx_err(pegasus))
|
|
printk(KERN_WARNING "%s: no rx stall recovery\n",
|
|
net->name);
|
|
return;
|
|
case -ENOENT:
|
|
case -ECONNRESET:
|
|
case -ESHUTDOWN:
|
|
if (netif_msg_ifdown(pegasus))
|
|
pr_debug("%s: rx unlink, %d\n", net->name, urb->status);
|
|
return;
|
|
default:
|
|
if (netif_msg_rx_err(pegasus))
|
|
pr_debug("%s: RX status %d\n", net->name, urb->status);
|
|
goto goon;
|
|
}
|
|
|
|
if (!count || count < 4)
|
|
goto goon;
|
|
|
|
rx_status = buf[count - 2];
|
|
if (rx_status & 0x1e) {
|
|
if (netif_msg_rx_err(pegasus))
|
|
pr_debug("%s: RX packet error %x\n",
|
|
net->name, rx_status);
|
|
pegasus->stats.rx_errors++;
|
|
if (rx_status & 0x06) // long or runt
|
|
pegasus->stats.rx_length_errors++;
|
|
if (rx_status & 0x08)
|
|
pegasus->stats.rx_crc_errors++;
|
|
if (rx_status & 0x10) // extra bits
|
|
pegasus->stats.rx_frame_errors++;
|
|
goto goon;
|
|
}
|
|
if (pegasus->chip == 0x8513) {
|
|
pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer);
|
|
pkt_len &= 0x0fff;
|
|
pegasus->rx_skb->data += 2;
|
|
} else {
|
|
pkt_len = buf[count - 3] << 8;
|
|
pkt_len += buf[count - 4];
|
|
pkt_len &= 0xfff;
|
|
pkt_len -= 8;
|
|
}
|
|
|
|
/*
|
|
* If the packet is unreasonably long, quietly drop it rather than
|
|
* kernel panicing by calling skb_put.
|
|
*/
|
|
if (pkt_len > PEGASUS_MTU)
|
|
goto goon;
|
|
|
|
/*
|
|
* at this point we are sure pegasus->rx_skb != NULL
|
|
* so we go ahead and pass up the packet.
|
|
*/
|
|
skb_put(pegasus->rx_skb, pkt_len);
|
|
pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net);
|
|
netif_rx(pegasus->rx_skb);
|
|
pegasus->stats.rx_packets++;
|
|
pegasus->stats.rx_bytes += pkt_len;
|
|
|
|
if (pegasus->flags & PEGASUS_UNPLUG)
|
|
return;
|
|
|
|
spin_lock(&pegasus->rx_pool_lock);
|
|
pegasus->rx_skb = pull_skb(pegasus);
|
|
spin_unlock(&pegasus->rx_pool_lock);
|
|
|
|
if (pegasus->rx_skb == NULL)
|
|
goto tl_sched;
|
|
goon:
|
|
usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
|
|
usb_rcvbulkpipe(pegasus->usb, 1),
|
|
pegasus->rx_skb->data, PEGASUS_MTU + 8,
|
|
read_bulk_callback, pegasus);
|
|
rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
|
|
if (rx_status == -ENODEV)
|
|
netif_device_detach(pegasus->net);
|
|
else if (rx_status) {
|
|
pegasus->flags |= PEGASUS_RX_URB_FAIL;
|
|
goto tl_sched;
|
|
} else {
|
|
pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
|
|
}
|
|
|
|
return;
|
|
|
|
tl_sched:
|
|
tasklet_schedule(&pegasus->rx_tl);
|
|
}
|
|
|
|
static void rx_fixup(unsigned long data)
|
|
{
|
|
pegasus_t *pegasus;
|
|
unsigned long flags;
|
|
int status;
|
|
|
|
pegasus = (pegasus_t *) data;
|
|
if (pegasus->flags & PEGASUS_UNPLUG)
|
|
return;
|
|
|
|
spin_lock_irqsave(&pegasus->rx_pool_lock, flags);
|
|
fill_skb_pool(pegasus);
|
|
if (pegasus->flags & PEGASUS_RX_URB_FAIL)
|
|
if (pegasus->rx_skb)
|
|
goto try_again;
|
|
if (pegasus->rx_skb == NULL) {
|
|
pegasus->rx_skb = pull_skb(pegasus);
|
|
}
|
|
if (pegasus->rx_skb == NULL) {
|
|
if (netif_msg_rx_err(pegasus))
|
|
printk(KERN_WARNING "%s: low on memory\n",
|
|
pegasus->net->name);
|
|
tasklet_schedule(&pegasus->rx_tl);
|
|
goto done;
|
|
}
|
|
usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
|
|
usb_rcvbulkpipe(pegasus->usb, 1),
|
|
pegasus->rx_skb->data, PEGASUS_MTU + 8,
|
|
read_bulk_callback, pegasus);
|
|
try_again:
|
|
status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
|
|
if (status == -ENODEV)
|
|
netif_device_detach(pegasus->net);
|
|
else if (status) {
|
|
pegasus->flags |= PEGASUS_RX_URB_FAIL;
|
|
tasklet_schedule(&pegasus->rx_tl);
|
|
} else {
|
|
pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
|
|
}
|
|
done:
|
|
spin_unlock_irqrestore(&pegasus->rx_pool_lock, flags);
|
|
}
|
|
|
|
static void write_bulk_callback(struct urb *urb)
|
|
{
|
|
pegasus_t *pegasus = urb->context;
|
|
struct net_device *net;
|
|
|
|
if (!pegasus)
|
|
return;
|
|
|
|
net = pegasus->net;
|
|
|
|
if (!netif_device_present(net) || !netif_running(net))
|
|
return;
|
|
|
|
switch (urb->status) {
|
|
case -EPIPE:
|
|
/* FIXME schedule_work() to clear the tx halt */
|
|
netif_stop_queue(net);
|
|
if (netif_msg_tx_err(pegasus))
|
|
printk(KERN_WARNING "%s: no tx stall recovery\n",
|
|
net->name);
|
|
return;
|
|
case -ENOENT:
|
|
case -ECONNRESET:
|
|
case -ESHUTDOWN:
|
|
if (netif_msg_ifdown(pegasus))
|
|
pr_debug("%s: tx unlink, %d\n", net->name, urb->status);
|
|
return;
|
|
default:
|
|
if (netif_msg_tx_err(pegasus))
|
|
pr_info("%s: TX status %d\n", net->name, urb->status);
|
|
/* FALL THROUGH */
|
|
case 0:
|
|
break;
|
|
}
|
|
|
|
net->trans_start = jiffies;
|
|
netif_wake_queue(net);
|
|
}
|
|
|
|
static void intr_callback(struct urb *urb)
|
|
{
|
|
pegasus_t *pegasus = urb->context;
|
|
struct net_device *net;
|
|
int status;
|
|
|
|
if (!pegasus)
|
|
return;
|
|
net = pegasus->net;
|
|
|
|
switch (urb->status) {
|
|
case 0:
|
|
break;
|
|
case -ECONNRESET: /* unlink */
|
|
case -ENOENT:
|
|
case -ESHUTDOWN:
|
|
return;
|
|
default:
|
|
/* some Pegasus-I products report LOTS of data
|
|
* toggle errors... avoid log spamming
|
|
*/
|
|
if (netif_msg_timer(pegasus))
|
|
pr_debug("%s: intr status %d\n", net->name,
|
|
urb->status);
|
|
}
|
|
|
|
if (urb->actual_length >= 6) {
|
|
u8 * d = urb->transfer_buffer;
|
|
|
|
/* byte 0 == tx_status1, reg 2B */
|
|
if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL
|
|
|LATE_COL|JABBER_TIMEOUT)) {
|
|
pegasus->stats.tx_errors++;
|
|
if (d[0] & TX_UNDERRUN)
|
|
pegasus->stats.tx_fifo_errors++;
|
|
if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT))
|
|
pegasus->stats.tx_aborted_errors++;
|
|
if (d[0] & LATE_COL)
|
|
pegasus->stats.tx_window_errors++;
|
|
}
|
|
|
|
/* d[5].LINK_STATUS lies on some adapters.
|
|
* d[0].NO_CARRIER kicks in only with failed TX.
|
|
* ... so monitoring with MII may be safest.
|
|
*/
|
|
|
|
/* bytes 3-4 == rx_lostpkt, reg 2E/2F */
|
|
pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4];
|
|
}
|
|
|
|
status = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (status == -ENODEV)
|
|
netif_device_detach(pegasus->net);
|
|
if (status && netif_msg_timer(pegasus))
|
|
printk(KERN_ERR "%s: can't resubmit interrupt urb, %d\n",
|
|
net->name, status);
|
|
}
|
|
|
|
static void pegasus_tx_timeout(struct net_device *net)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(net);
|
|
if (netif_msg_timer(pegasus))
|
|
printk(KERN_WARNING "%s: tx timeout\n", net->name);
|
|
usb_unlink_urb(pegasus->tx_urb);
|
|
pegasus->stats.tx_errors++;
|
|
}
|
|
|
|
static int pegasus_start_xmit(struct sk_buff *skb, struct net_device *net)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(net);
|
|
int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3;
|
|
int res;
|
|
__u16 l16 = skb->len;
|
|
|
|
netif_stop_queue(net);
|
|
|
|
((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16);
|
|
skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len);
|
|
usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb,
|
|
usb_sndbulkpipe(pegasus->usb, 2),
|
|
pegasus->tx_buff, count,
|
|
write_bulk_callback, pegasus);
|
|
if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) {
|
|
if (netif_msg_tx_err(pegasus))
|
|
printk(KERN_WARNING "%s: fail tx, %d\n",
|
|
net->name, res);
|
|
switch (res) {
|
|
case -EPIPE: /* stall, or disconnect from TT */
|
|
/* cleanup should already have been scheduled */
|
|
break;
|
|
case -ENODEV: /* disconnect() upcoming */
|
|
netif_device_detach(pegasus->net);
|
|
break;
|
|
default:
|
|
pegasus->stats.tx_errors++;
|
|
netif_start_queue(net);
|
|
}
|
|
} else {
|
|
pegasus->stats.tx_packets++;
|
|
pegasus->stats.tx_bytes += skb->len;
|
|
net->trans_start = jiffies;
|
|
}
|
|
dev_kfree_skb(skb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev)
|
|
{
|
|
return &((pegasus_t *) netdev_priv(dev))->stats;
|
|
}
|
|
|
|
static inline void disable_net_traffic(pegasus_t * pegasus)
|
|
{
|
|
int tmp = 0;
|
|
|
|
set_registers(pegasus, EthCtrl0, 2, &tmp);
|
|
}
|
|
|
|
static inline void get_interrupt_interval(pegasus_t * pegasus)
|
|
{
|
|
__u8 data[2];
|
|
|
|
read_eprom_word(pegasus, 4, (__u16 *) data);
|
|
if (pegasus->usb->speed != USB_SPEED_HIGH) {
|
|
if (data[1] < 0x80) {
|
|
if (netif_msg_timer(pegasus))
|
|
dev_info(&pegasus->intf->dev, "intr interval "
|
|
"changed from %ums to %ums\n",
|
|
data[1], 0x80);
|
|
data[1] = 0x80;
|
|
#ifdef PEGASUS_WRITE_EEPROM
|
|
write_eprom_word(pegasus, 4, *(__u16 *) data);
|
|
#endif
|
|
}
|
|
}
|
|
pegasus->intr_interval = data[1];
|
|
}
|
|
|
|
static void set_carrier(struct net_device *net)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(net);
|
|
u16 tmp;
|
|
|
|
if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp))
|
|
return;
|
|
|
|
if (tmp & BMSR_LSTATUS)
|
|
netif_carrier_on(net);
|
|
else
|
|
netif_carrier_off(net);
|
|
}
|
|
|
|
static void free_all_urbs(pegasus_t * pegasus)
|
|
{
|
|
usb_free_urb(pegasus->intr_urb);
|
|
usb_free_urb(pegasus->tx_urb);
|
|
usb_free_urb(pegasus->rx_urb);
|
|
usb_free_urb(pegasus->ctrl_urb);
|
|
}
|
|
|
|
static void unlink_all_urbs(pegasus_t * pegasus)
|
|
{
|
|
usb_kill_urb(pegasus->intr_urb);
|
|
usb_kill_urb(pegasus->tx_urb);
|
|
usb_kill_urb(pegasus->rx_urb);
|
|
usb_kill_urb(pegasus->ctrl_urb);
|
|
}
|
|
|
|
static int alloc_urbs(pegasus_t * pegasus)
|
|
{
|
|
pegasus->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!pegasus->ctrl_urb) {
|
|
return 0;
|
|
}
|
|
pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!pegasus->rx_urb) {
|
|
usb_free_urb(pegasus->ctrl_urb);
|
|
return 0;
|
|
}
|
|
pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!pegasus->tx_urb) {
|
|
usb_free_urb(pegasus->rx_urb);
|
|
usb_free_urb(pegasus->ctrl_urb);
|
|
return 0;
|
|
}
|
|
pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!pegasus->intr_urb) {
|
|
usb_free_urb(pegasus->tx_urb);
|
|
usb_free_urb(pegasus->rx_urb);
|
|
usb_free_urb(pegasus->ctrl_urb);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int pegasus_open(struct net_device *net)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(net);
|
|
int res;
|
|
|
|
if (pegasus->rx_skb == NULL)
|
|
pegasus->rx_skb = pull_skb(pegasus);
|
|
/*
|
|
** Note: no point to free the pool. it is empty :-)
|
|
*/
|
|
if (!pegasus->rx_skb)
|
|
return -ENOMEM;
|
|
|
|
res = set_registers(pegasus, EthID, 6, net->dev_addr);
|
|
|
|
usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
|
|
usb_rcvbulkpipe(pegasus->usb, 1),
|
|
pegasus->rx_skb->data, PEGASUS_MTU + 8,
|
|
read_bulk_callback, pegasus);
|
|
if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) {
|
|
if (res == -ENODEV)
|
|
netif_device_detach(pegasus->net);
|
|
if (netif_msg_ifup(pegasus))
|
|
pr_debug("%s: failed rx_urb, %d", net->name, res);
|
|
goto exit;
|
|
}
|
|
|
|
usb_fill_int_urb(pegasus->intr_urb, pegasus->usb,
|
|
usb_rcvintpipe(pegasus->usb, 3),
|
|
pegasus->intr_buff, sizeof (pegasus->intr_buff),
|
|
intr_callback, pegasus, pegasus->intr_interval);
|
|
if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) {
|
|
if (res == -ENODEV)
|
|
netif_device_detach(pegasus->net);
|
|
if (netif_msg_ifup(pegasus))
|
|
pr_debug("%s: failed intr_urb, %d\n", net->name, res);
|
|
usb_kill_urb(pegasus->rx_urb);
|
|
goto exit;
|
|
}
|
|
if ((res = enable_net_traffic(net, pegasus->usb))) {
|
|
if (netif_msg_ifup(pegasus))
|
|
pr_debug("%s: can't enable_net_traffic() - %d\n",
|
|
net->name, res);
|
|
res = -EIO;
|
|
usb_kill_urb(pegasus->rx_urb);
|
|
usb_kill_urb(pegasus->intr_urb);
|
|
free_skb_pool(pegasus);
|
|
goto exit;
|
|
}
|
|
set_carrier(net);
|
|
netif_start_queue(net);
|
|
if (netif_msg_ifup(pegasus))
|
|
pr_debug("%s: open\n", net->name);
|
|
res = 0;
|
|
exit:
|
|
return res;
|
|
}
|
|
|
|
static int pegasus_close(struct net_device *net)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(net);
|
|
|
|
netif_stop_queue(net);
|
|
if (!(pegasus->flags & PEGASUS_UNPLUG))
|
|
disable_net_traffic(pegasus);
|
|
tasklet_kill(&pegasus->rx_tl);
|
|
unlink_all_urbs(pegasus);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pegasus_get_drvinfo(struct net_device *dev,
|
|
struct ethtool_drvinfo *info)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(dev);
|
|
strncpy(info->driver, driver_name, sizeof (info->driver) - 1);
|
|
strncpy(info->version, DRIVER_VERSION, sizeof (info->version) - 1);
|
|
usb_make_path(pegasus->usb, info->bus_info, sizeof (info->bus_info));
|
|
}
|
|
|
|
/* also handles three patterns of some kind in hardware */
|
|
#define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY)
|
|
|
|
static void
|
|
pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(dev);
|
|
|
|
wol->supported = WAKE_MAGIC | WAKE_PHY;
|
|
wol->wolopts = pegasus->wolopts;
|
|
}
|
|
|
|
static int
|
|
pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(dev);
|
|
u8 reg78 = 0x04;
|
|
|
|
if (wol->wolopts & ~WOL_SUPPORTED)
|
|
return -EINVAL;
|
|
|
|
if (wol->wolopts & WAKE_MAGIC)
|
|
reg78 |= 0x80;
|
|
if (wol->wolopts & WAKE_PHY)
|
|
reg78 |= 0x40;
|
|
/* FIXME this 0x10 bit still needs to get set in the chip... */
|
|
if (wol->wolopts)
|
|
pegasus->eth_regs[0] |= 0x10;
|
|
else
|
|
pegasus->eth_regs[0] &= ~0x10;
|
|
pegasus->wolopts = wol->wolopts;
|
|
return set_register(pegasus, WakeupControl, reg78);
|
|
}
|
|
|
|
static inline void pegasus_reset_wol(struct net_device *dev)
|
|
{
|
|
struct ethtool_wolinfo wol;
|
|
|
|
memset(&wol, 0, sizeof wol);
|
|
(void) pegasus_set_wol(dev, &wol);
|
|
}
|
|
|
|
static int
|
|
pegasus_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
|
|
{
|
|
pegasus_t *pegasus;
|
|
|
|
pegasus = netdev_priv(dev);
|
|
mii_ethtool_gset(&pegasus->mii, ecmd);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
pegasus_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(dev);
|
|
return mii_ethtool_sset(&pegasus->mii, ecmd);
|
|
}
|
|
|
|
static int pegasus_nway_reset(struct net_device *dev)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(dev);
|
|
return mii_nway_restart(&pegasus->mii);
|
|
}
|
|
|
|
static u32 pegasus_get_link(struct net_device *dev)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(dev);
|
|
return mii_link_ok(&pegasus->mii);
|
|
}
|
|
|
|
static u32 pegasus_get_msglevel(struct net_device *dev)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(dev);
|
|
return pegasus->msg_enable;
|
|
}
|
|
|
|
static void pegasus_set_msglevel(struct net_device *dev, u32 v)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(dev);
|
|
pegasus->msg_enable = v;
|
|
}
|
|
|
|
static struct ethtool_ops ops = {
|
|
.get_drvinfo = pegasus_get_drvinfo,
|
|
.get_settings = pegasus_get_settings,
|
|
.set_settings = pegasus_set_settings,
|
|
.nway_reset = pegasus_nway_reset,
|
|
.get_link = pegasus_get_link,
|
|
.get_msglevel = pegasus_get_msglevel,
|
|
.set_msglevel = pegasus_set_msglevel,
|
|
.get_wol = pegasus_get_wol,
|
|
.set_wol = pegasus_set_wol,
|
|
};
|
|
|
|
static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
|
|
{
|
|
__u16 *data = (__u16 *) & rq->ifr_ifru;
|
|
pegasus_t *pegasus = netdev_priv(net);
|
|
int res;
|
|
|
|
switch (cmd) {
|
|
case SIOCDEVPRIVATE:
|
|
data[0] = pegasus->phy;
|
|
case SIOCDEVPRIVATE + 1:
|
|
read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]);
|
|
res = 0;
|
|
break;
|
|
case SIOCDEVPRIVATE + 2:
|
|
if (!capable(CAP_NET_ADMIN))
|
|
return -EPERM;
|
|
write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, data[2]);
|
|
res = 0;
|
|
break;
|
|
default:
|
|
res = -EOPNOTSUPP;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static void pegasus_set_multicast(struct net_device *net)
|
|
{
|
|
pegasus_t *pegasus = netdev_priv(net);
|
|
|
|
if (net->flags & IFF_PROMISC) {
|
|
pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS;
|
|
if (netif_msg_link(pegasus))
|
|
pr_info("%s: Promiscuous mode enabled.\n", net->name);
|
|
} else if (net->mc_count || (net->flags & IFF_ALLMULTI)) {
|
|
pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST;
|
|
pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
|
|
if (netif_msg_link(pegasus))
|
|
pr_info("%s: set allmulti\n", net->name);
|
|
} else {
|
|
pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST;
|
|
pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
|
|
}
|
|
|
|
pegasus->ctrl_urb->status = 0;
|
|
|
|
pegasus->flags |= ETH_REGS_CHANGE;
|
|
ctrl_callback(pegasus->ctrl_urb);
|
|
}
|
|
|
|
static __u8 mii_phy_probe(pegasus_t * pegasus)
|
|
{
|
|
int i;
|
|
__u16 tmp;
|
|
|
|
for (i = 0; i < 32; i++) {
|
|
read_mii_word(pegasus, i, MII_BMSR, &tmp);
|
|
if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0)
|
|
continue;
|
|
else
|
|
return i;
|
|
}
|
|
|
|
return 0xff;
|
|
}
|
|
|
|
static inline void setup_pegasus_II(pegasus_t * pegasus)
|
|
{
|
|
__u8 data = 0xa5;
|
|
|
|
set_register(pegasus, Reg1d, 0);
|
|
set_register(pegasus, Reg7b, 1);
|
|
mdelay(100);
|
|
if ((pegasus->features & HAS_HOME_PNA) && mii_mode)
|
|
set_register(pegasus, Reg7b, 0);
|
|
else
|
|
set_register(pegasus, Reg7b, 2);
|
|
|
|
set_register(pegasus, 0x83, data);
|
|
get_registers(pegasus, 0x83, 1, &data);
|
|
|
|
if (data == 0xa5) {
|
|
pegasus->chip = 0x8513;
|
|
} else {
|
|
pegasus->chip = 0;
|
|
}
|
|
|
|
set_register(pegasus, 0x80, 0xc0);
|
|
set_register(pegasus, 0x83, 0xff);
|
|
set_register(pegasus, 0x84, 0x01);
|
|
|
|
if (pegasus->features & HAS_HOME_PNA && mii_mode)
|
|
set_register(pegasus, Reg81, 6);
|
|
else
|
|
set_register(pegasus, Reg81, 2);
|
|
}
|
|
|
|
|
|
static struct workqueue_struct *pegasus_workqueue = NULL;
|
|
#define CARRIER_CHECK_DELAY (2 * HZ)
|
|
|
|
static void check_carrier(struct work_struct *work)
|
|
{
|
|
pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work);
|
|
set_carrier(pegasus->net);
|
|
if (!(pegasus->flags & PEGASUS_UNPLUG)) {
|
|
queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
|
|
CARRIER_CHECK_DELAY);
|
|
}
|
|
}
|
|
|
|
static int pegasus_blacklisted(struct usb_device *udev)
|
|
{
|
|
struct usb_device_descriptor *udd = &udev->descriptor;
|
|
|
|
/* Special quirk to keep the driver from handling the Belkin Bluetooth
|
|
* dongle which happens to have the same ID.
|
|
*/
|
|
if ((udd->idVendor == VENDOR_BELKIN && udd->idProduct == 0x0121) &&
|
|
(udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) &&
|
|
(udd->bDeviceProtocol == 1))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pegasus_probe(struct usb_interface *intf,
|
|
const struct usb_device_id *id)
|
|
{
|
|
struct usb_device *dev = interface_to_usbdev(intf);
|
|
struct net_device *net;
|
|
pegasus_t *pegasus;
|
|
int dev_index = id - pegasus_ids;
|
|
int res = -ENOMEM;
|
|
|
|
usb_get_dev(dev);
|
|
|
|
if (pegasus_blacklisted(dev)) {
|
|
res = -ENODEV;
|
|
goto out;
|
|
}
|
|
|
|
net = alloc_etherdev(sizeof(struct pegasus));
|
|
if (!net) {
|
|
dev_err(&intf->dev, "can't allocate %s\n", "device");
|
|
goto out;
|
|
}
|
|
|
|
pegasus = netdev_priv(net);
|
|
pegasus->dev_index = dev_index;
|
|
init_waitqueue_head(&pegasus->ctrl_wait);
|
|
|
|
if (!alloc_urbs(pegasus)) {
|
|
dev_err(&intf->dev, "can't allocate %s\n", "urbs");
|
|
goto out1;
|
|
}
|
|
|
|
tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus);
|
|
|
|
INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier);
|
|
|
|
pegasus->intf = intf;
|
|
pegasus->usb = dev;
|
|
pegasus->net = net;
|
|
net->open = pegasus_open;
|
|
net->stop = pegasus_close;
|
|
net->watchdog_timeo = PEGASUS_TX_TIMEOUT;
|
|
net->tx_timeout = pegasus_tx_timeout;
|
|
net->do_ioctl = pegasus_ioctl;
|
|
net->hard_start_xmit = pegasus_start_xmit;
|
|
net->set_multicast_list = pegasus_set_multicast;
|
|
net->get_stats = pegasus_netdev_stats;
|
|
SET_ETHTOOL_OPS(net, &ops);
|
|
pegasus->mii.dev = net;
|
|
pegasus->mii.mdio_read = mdio_read;
|
|
pegasus->mii.mdio_write = mdio_write;
|
|
pegasus->mii.phy_id_mask = 0x1f;
|
|
pegasus->mii.reg_num_mask = 0x1f;
|
|
spin_lock_init(&pegasus->rx_pool_lock);
|
|
pegasus->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV
|
|
| NETIF_MSG_PROBE | NETIF_MSG_LINK);
|
|
|
|
pegasus->features = usb_dev_id[dev_index].private;
|
|
get_interrupt_interval(pegasus);
|
|
if (reset_mac(pegasus)) {
|
|
dev_err(&intf->dev, "can't reset MAC\n");
|
|
res = -EIO;
|
|
goto out2;
|
|
}
|
|
set_ethernet_addr(pegasus);
|
|
fill_skb_pool(pegasus);
|
|
if (pegasus->features & PEGASUS_II) {
|
|
dev_info(&intf->dev, "setup Pegasus II specific registers\n");
|
|
setup_pegasus_II(pegasus);
|
|
}
|
|
pegasus->phy = mii_phy_probe(pegasus);
|
|
if (pegasus->phy == 0xff) {
|
|
dev_warn(&intf->dev, "can't locate MII phy, using default\n");
|
|
pegasus->phy = 1;
|
|
}
|
|
pegasus->mii.phy_id = pegasus->phy;
|
|
usb_set_intfdata(intf, pegasus);
|
|
SET_NETDEV_DEV(net, &intf->dev);
|
|
pegasus_reset_wol(net);
|
|
res = register_netdev(net);
|
|
if (res)
|
|
goto out3;
|
|
queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
|
|
CARRIER_CHECK_DELAY);
|
|
|
|
dev_info(&intf->dev, "%s, %s, %pM\n",
|
|
net->name,
|
|
usb_dev_id[dev_index].name,
|
|
net->dev_addr);
|
|
return 0;
|
|
|
|
out3:
|
|
usb_set_intfdata(intf, NULL);
|
|
free_skb_pool(pegasus);
|
|
out2:
|
|
free_all_urbs(pegasus);
|
|
out1:
|
|
free_netdev(net);
|
|
out:
|
|
usb_put_dev(dev);
|
|
return res;
|
|
}
|
|
|
|
static void pegasus_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct pegasus *pegasus = usb_get_intfdata(intf);
|
|
|
|
usb_set_intfdata(intf, NULL);
|
|
if (!pegasus) {
|
|
dev_dbg(&intf->dev, "unregistering non-bound device?\n");
|
|
return;
|
|
}
|
|
|
|
pegasus->flags |= PEGASUS_UNPLUG;
|
|
cancel_delayed_work(&pegasus->carrier_check);
|
|
unregister_netdev(pegasus->net);
|
|
usb_put_dev(interface_to_usbdev(intf));
|
|
unlink_all_urbs(pegasus);
|
|
free_all_urbs(pegasus);
|
|
free_skb_pool(pegasus);
|
|
if (pegasus->rx_skb != NULL) {
|
|
dev_kfree_skb(pegasus->rx_skb);
|
|
pegasus->rx_skb = NULL;
|
|
}
|
|
free_netdev(pegasus->net);
|
|
}
|
|
|
|
static int pegasus_suspend (struct usb_interface *intf, pm_message_t message)
|
|
{
|
|
struct pegasus *pegasus = usb_get_intfdata(intf);
|
|
|
|
netif_device_detach (pegasus->net);
|
|
cancel_delayed_work(&pegasus->carrier_check);
|
|
if (netif_running(pegasus->net)) {
|
|
usb_kill_urb(pegasus->rx_urb);
|
|
usb_kill_urb(pegasus->intr_urb);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int pegasus_resume (struct usb_interface *intf)
|
|
{
|
|
struct pegasus *pegasus = usb_get_intfdata(intf);
|
|
|
|
netif_device_attach (pegasus->net);
|
|
if (netif_running(pegasus->net)) {
|
|
pegasus->rx_urb->status = 0;
|
|
pegasus->rx_urb->actual_length = 0;
|
|
read_bulk_callback(pegasus->rx_urb);
|
|
|
|
pegasus->intr_urb->status = 0;
|
|
pegasus->intr_urb->actual_length = 0;
|
|
intr_callback(pegasus->intr_urb);
|
|
}
|
|
queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
|
|
CARRIER_CHECK_DELAY);
|
|
return 0;
|
|
}
|
|
|
|
static struct usb_driver pegasus_driver = {
|
|
.name = driver_name,
|
|
.probe = pegasus_probe,
|
|
.disconnect = pegasus_disconnect,
|
|
.id_table = pegasus_ids,
|
|
.suspend = pegasus_suspend,
|
|
.resume = pegasus_resume,
|
|
};
|
|
|
|
static void parse_id(char *id)
|
|
{
|
|
unsigned int vendor_id=0, device_id=0, flags=0, i=0;
|
|
char *token, *name=NULL;
|
|
|
|
if ((token = strsep(&id, ":")) != NULL)
|
|
name = token;
|
|
/* name now points to a null terminated string*/
|
|
if ((token = strsep(&id, ":")) != NULL)
|
|
vendor_id = simple_strtoul(token, NULL, 16);
|
|
if ((token = strsep(&id, ":")) != NULL)
|
|
device_id = simple_strtoul(token, NULL, 16);
|
|
flags = simple_strtoul(id, NULL, 16);
|
|
pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n",
|
|
driver_name, name, vendor_id, device_id, flags);
|
|
|
|
if (vendor_id > 0x10000 || vendor_id == 0)
|
|
return;
|
|
if (device_id > 0x10000 || device_id == 0)
|
|
return;
|
|
|
|
for (i=0; usb_dev_id[i].name; i++);
|
|
usb_dev_id[i].name = name;
|
|
usb_dev_id[i].vendor = vendor_id;
|
|
usb_dev_id[i].device = device_id;
|
|
usb_dev_id[i].private = flags;
|
|
pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
|
|
pegasus_ids[i].idVendor = vendor_id;
|
|
pegasus_ids[i].idProduct = device_id;
|
|
}
|
|
|
|
static int __init pegasus_init(void)
|
|
{
|
|
pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION);
|
|
if (devid)
|
|
parse_id(devid);
|
|
pegasus_workqueue = create_singlethread_workqueue("pegasus");
|
|
if (!pegasus_workqueue)
|
|
return -ENOMEM;
|
|
return usb_register(&pegasus_driver);
|
|
}
|
|
|
|
static void __exit pegasus_exit(void)
|
|
{
|
|
destroy_workqueue(pegasus_workqueue);
|
|
usb_deregister(&pegasus_driver);
|
|
}
|
|
|
|
module_init(pegasus_init);
|
|
module_exit(pegasus_exit);
|