pegasus.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:23k
- /*
- ** Pegasus: USB 10/100Mbps/HomePNA (1Mbps) Controller
- **
- ** Copyright (c) 1999-2001 Petko Manolov (pmanolov@lnxw.com)
- **
- **
- ** ChangeLog:
- ** .... Most of the time spend reading sources & docs.
- ** v0.2.x First official release for the Linux kernel.
- ** v0.3.0 Beutified and structured, some bugs fixed.
- ** v0.3.x URBifying bulk requests and bugfixing. First relatively
- ** stable release. Still can touch device's registers only
- ** from top-halves.
- ** v0.4.0 Control messages remained unurbified are now URBs.
- ** Now we can touch the HW at any time.
- ** v0.4.9 Control urbs again use process context to wait. Argh...
- ** Some long standing bugs (enable_net_traffic) fixed.
- ** Also nasty trick about resubmiting control urb from
- ** interrupt context used. Please let me know how it
- ** behaves. Pegasus II support added since this version.
- ** TODO: suppressing HCD warnings spewage on disconnect.
- ** v0.4.13 Ethernet address is now set at probe(), not at open()
- ** time as this seems to break dhcpd.
- */
- /*
- * 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 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #include <linux/sched.h>
- #include <linux/slab.h>
- #include <linux/init.h>
- #include <linux/delay.h>
- #include <linux/netdevice.h>
- #include <linux/etherdevice.h>
- #include <linux/usb.h>
- #include <linux/module.h>
- #include "pegasus.h"
- /*
- * Version Information
- */
- #define DRIVER_VERSION "v0.4.22 (2001/12/07)"
- #define DRIVER_AUTHOR "Petko Manolov <pmanolov@lnxw.com>"
- #define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver"
- #define PEGASUS_USE_INTR
- #define PEGASUS_WRITE_EEPROM
- static int loopback = 0;
- static int mii_mode = 0;
- static int multicast_filter_limit = 32;
- static struct usb_eth_dev usb_dev_id[] = {
- #define PEGASUS_DEV(pn, vid, pid, flags)
- {name:pn, vendor:vid, device:pid, private:flags},
- #include "pegasus.h"
- #undef PEGASUS_DEV
- {NULL, 0, 0, 0}
- };
- static struct usb_device_id pegasus_ids[] = {
- #define PEGASUS_DEV(pn, vid, pid, flags)
- {match_flags: USB_DEVICE_ID_MATCH_DEVICE, idVendor:vid, idProduct:pid},
- #include "pegasus.h"
- #undef PEGASUS_DEV
- { }
- };
- MODULE_AUTHOR( DRIVER_AUTHOR );
- MODULE_DESCRIPTION( DRIVER_DESC );
- MODULE_LICENSE("GPL");
- MODULE_PARM(loopback, "i");
- MODULE_PARM(mii_mode, "i");
- MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)");
- MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0");
- MODULE_DEVICE_TABLE (usb, pegasus_ids);
- static int update_eth_regs_async( pegasus_t * );
- /* Aargh!!! I _really_ hate such tweaks */
- static void ctrl_callback( urb_t *urb )
- {
- pegasus_t *pegasus = urb->context;
- if ( !pegasus )
- return;
- switch ( urb->status ) {
- case USB_ST_NOERROR:
- if ( pegasus->flags & ETH_REGS_CHANGE ) {
- pegasus->flags &= ~ETH_REGS_CHANGE;
- pegasus->flags |= ETH_REGS_CHANGED;
- update_eth_regs_async( pegasus );
- return;
- }
- break;
- case USB_ST_URB_PENDING:
- return;
- case USB_ST_URB_KILLED:
- break;
- default:
- warn( __FUNCTION__ " status %d", urb->status);
- }
- pegasus->flags &= ~ETH_REGS_CHANGED;
- wake_up(&pegasus->ctrl_wait );
- }
- static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
- {
- int ret;
- unsigned char *buffer;
- DECLARE_WAITQUEUE(wait, current);
- buffer = kmalloc(size,GFP_KERNEL);
- if (!buffer) {
- err("unable to allocate memory for configuration descriptors");
- return 0;
- }
- memcpy(buffer,data,size);
- add_wait_queue(&pegasus->ctrl_wait, &wait);
- set_current_state(TASK_UNINTERRUPTIBLE);
- while ( pegasus->flags & ETH_REGS_CHANGED )
- schedule();
- remove_wait_queue(&pegasus->ctrl_wait, &wait);
- set_current_state(TASK_RUNNING);
- pegasus->dr.requesttype = PEGASUS_REQT_READ;
- pegasus->dr.request = PEGASUS_REQ_GET_REGS;
- pegasus->dr.value = cpu_to_le16 (0);
- pegasus->dr.index = cpu_to_le16p(&indx);
- pegasus->dr.length = cpu_to_le16p(&size);
- pegasus->ctrl_urb.transfer_buffer_length = size;
- FILL_CONTROL_URB( &pegasus->ctrl_urb, pegasus->usb,
- usb_rcvctrlpipe(pegasus->usb,0),
- (char *)&pegasus->dr,
- buffer, size, ctrl_callback, pegasus );
- add_wait_queue( &pegasus->ctrl_wait, &wait );
- set_current_state( TASK_UNINTERRUPTIBLE );
- if ( (ret = usb_submit_urb( &pegasus->ctrl_urb )) ) {
- err( __FUNCTION__ " BAD CTRLs %d", ret);
- goto out;
- }
- schedule();
- out:
- remove_wait_queue( &pegasus->ctrl_wait, &wait );
- memcpy(data,buffer,size);
- kfree(buffer);
- return ret;
- }
- static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
- {
- int ret;
- unsigned char *buffer;
- DECLARE_WAITQUEUE(wait, current);
- buffer = kmalloc(size, GFP_KERNEL);
- if (!buffer) {
- err("unable to allocate memory for configuration descriptors");
- return 0;
- }
- memcpy(buffer, data, size);
- add_wait_queue(&pegasus->ctrl_wait, &wait);
- set_current_state(TASK_UNINTERRUPTIBLE);
- while ( pegasus->flags & ETH_REGS_CHANGED )
- schedule();
- remove_wait_queue(&pegasus->ctrl_wait, &wait);
- set_current_state(TASK_RUNNING);
- pegasus->dr.requesttype = PEGASUS_REQT_WRITE;
- pegasus->dr.request = PEGASUS_REQ_SET_REGS;
- pegasus->dr.value = cpu_to_le16 (0);
- pegasus->dr.index = cpu_to_le16p( &indx );
- pegasus->dr.length = cpu_to_le16p( &size );
- pegasus->ctrl_urb.transfer_buffer_length = size;
- FILL_CONTROL_URB( &pegasus->ctrl_urb, pegasus->usb,
- usb_sndctrlpipe(pegasus->usb,0),
- (char *)&pegasus->dr,
- buffer, size, ctrl_callback, pegasus );
-
- add_wait_queue( &pegasus->ctrl_wait, &wait );
- set_current_state( TASK_UNINTERRUPTIBLE );
- if ( (ret = usb_submit_urb( &pegasus->ctrl_urb )) ) {
- err( __FUNCTION__ " BAD CTRL %d", ret);
- goto out;
- }
-
- schedule();
- out:
- remove_wait_queue( &pegasus->ctrl_wait, &wait );
- kfree(buffer);
-
- return ret;
- }
- static int set_register( pegasus_t *pegasus, __u16 indx, __u8 data )
- {
- int ret;
- unsigned char *buffer;
- __u16 dat = data;
- DECLARE_WAITQUEUE(wait, current);
-
- buffer = kmalloc(1, GFP_KERNEL);
- if (!buffer) {
- err("unable to allocate memory for configuration descriptors");
- return 0;
- }
- memcpy(buffer, &data, 1);
- add_wait_queue(&pegasus->ctrl_wait, &wait);
- set_current_state(TASK_UNINTERRUPTIBLE);
- while ( pegasus->flags & ETH_REGS_CHANGED )
- schedule();
- remove_wait_queue(&pegasus->ctrl_wait, &wait);
- set_current_state(TASK_RUNNING);
- pegasus->dr.requesttype = PEGASUS_REQT_WRITE;
- pegasus->dr.request = PEGASUS_REQ_SET_REG;
- pegasus->dr.value = cpu_to_le16p( &dat);
- pegasus->dr.index = cpu_to_le16p( &indx );
- pegasus->dr.length = cpu_to_le16( 1 );
- pegasus->ctrl_urb.transfer_buffer_length = 1;
- FILL_CONTROL_URB( &pegasus->ctrl_urb, pegasus->usb,
- usb_sndctrlpipe(pegasus->usb,0),
- (char *)&pegasus->dr,
- buffer, 1, ctrl_callback, pegasus );
- add_wait_queue( &pegasus->ctrl_wait, &wait );
- set_current_state( TASK_UNINTERRUPTIBLE );
- if ( (ret = usb_submit_urb( &pegasus->ctrl_urb )) ) {
- err( __FUNCTION__ " BAD CTRL %d", ret);
- goto out;
- }
- schedule();
- out:
- remove_wait_queue( &pegasus->ctrl_wait, &wait );
- kfree(buffer);
- return ret;
- }
- static int update_eth_regs_async( pegasus_t *pegasus )
- {
- int ret;
- pegasus->dr.requesttype = PEGASUS_REQT_WRITE;
- pegasus->dr.request = PEGASUS_REQ_SET_REGS;
- pegasus->dr.value = 0;
- pegasus->dr.index = cpu_to_le16(EthCtrl0);
- pegasus->dr.length = cpu_to_le16(3);
- pegasus->ctrl_urb.transfer_buffer_length = 3;
- FILL_CONTROL_URB( &pegasus->ctrl_urb, pegasus->usb,
- usb_sndctrlpipe(pegasus->usb,0),
- (char *)&pegasus->dr,
- pegasus->eth_regs, 3, ctrl_callback, pegasus );
- if ( (ret = usb_submit_urb( &pegasus->ctrl_urb )) )
- err( __FUNCTION__ " BAD CTRL %d, flags %x",ret,pegasus->flags );
- return ret;
- }
- static int read_mii_word( pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd )
- {
- int i;
- __u8 data[4] = { phy, 0, 0, indx };
- __u16 regdi;
-
- set_register( pegasus, PhyCtrl, 0 );
- set_registers( pegasus, PhyAddr, sizeof(data), data );
- set_register( pegasus, PhyCtrl, (indx | PHY_READ) );
- for (i = 0; i < REG_TIMEOUT; i++) {
- get_registers(pegasus, PhyCtrl, 1, data);
- if ( data[0] & PHY_DONE )
- break;
- }
- if ( i < REG_TIMEOUT ) {
- get_registers( pegasus, PhyData, 2, ®di );
- *regd = le16_to_cpu(regdi);
- return 0;
- }
- warn( __FUNCTION__ " failed" );
-
- return 1;
- }
- static int write_mii_word( pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 regd )
- {
- int i;
- __u8 data[4] = { phy, 0, 0, indx };
-
- *(data + 1) = cpu_to_le16p( ®d );
- set_register( pegasus, PhyCtrl, 0 );
- set_registers( pegasus, PhyAddr, 4, data );
- set_register( pegasus, PhyCtrl, (indx | PHY_WRITE) );
- for (i = 0; i < REG_TIMEOUT; i++) {
- get_registers(pegasus, PhyCtrl, 1, data);
- if ( data[0] & PHY_DONE )
- break;
- }
- if ( i < REG_TIMEOUT )
- return 0;
- warn( __FUNCTION__ " failed" );
- return 1;
- }
- static int read_eprom_word( pegasus_t *pegasus, __u8 index, __u16 *retdata )
- {
- int i;
- __u8 tmp;
- __u16 retdatai;
-
- set_register( pegasus, EpromCtrl, 0 );
- set_register( pegasus, EpromOffset, index );
- set_register( pegasus, EpromCtrl, EPROM_READ);
- for ( i=0; i < REG_TIMEOUT; i++ ) {
- get_registers( pegasus, EpromCtrl, 1, &tmp );
- if ( tmp & EPROM_DONE )
- break;
- }
- if ( i < REG_TIMEOUT ) {
- get_registers( pegasus, EpromData, 2, &retdatai );
- *retdata = le16_to_cpu (retdatai);
- return 0;
- }
- warn( __FUNCTION__ " failed" );
- return -1;
- }
- #ifdef PEGASUS_WRITE_EEPROM
- static inline void enable_eprom_write( pegasus_t *pegasus )
- {
- __u8 tmp;
- get_registers( pegasus, EthCtrl2, 1, &tmp );
- set_register( pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE );
- }
- static inline void disable_eprom_write( pegasus_t *pegasus )
- {
- __u8 tmp;
- get_registers( pegasus, EthCtrl2, 1, &tmp );
- set_register( pegasus, EpromCtrl, 0 );
- set_register( pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE );
- }
- static int write_eprom_word( pegasus_t *pegasus, __u8 index, __u16 data )
- {
- int i, tmp;
- __u8 d[4] = {0x3f, 0, 0, EPROM_WRITE};
- set_registers( pegasus, EpromOffset, 4, d );
- enable_eprom_write( pegasus );
- set_register( pegasus, EpromOffset, index );
- set_registers( pegasus, EpromData, 2, &data );
- set_register( pegasus, EpromCtrl, EPROM_WRITE );
- for ( i=0; i < REG_TIMEOUT; i++ ) {
- get_registers( pegasus, EpromCtrl, 1, &tmp );
- if ( tmp & EPROM_DONE )
- break;
- }
- disable_eprom_write( pegasus );
- if ( i < REG_TIMEOUT )
- return 0;
- warn( __FUNCTION__ " failed" );
- return -1;
- }
- #endif /* PEGASUS_WRITE_EEPROM */
- static inline void get_node_id( pegasus_t *pegasus, __u8 *id )
- {
- int i;
- __u16 w16;
-
- for (i = 0; i < 3; i++) {
- read_eprom_word( pegasus, i, &w16);
- ((__u16 *) id)[i] = cpu_to_le16p (&w16);
- }
- }
- static void set_ethernet_addr( pegasus_t *pegasus )
- {
- __u8 node_id[6];
- 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 1;
- if ( usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
- 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 0;
- }
- static int enable_net_traffic( struct net_device *dev, struct usb_device *usb )
- {
- __u16 linkpart, bmsr;
- __u8 data[4];
- pegasus_t *pegasus = dev->priv;
- if ( read_mii_word(pegasus, pegasus->phy, MII_BMSR, &bmsr) )
- return 1;
- if ( !(bmsr & 0x20) && !loopback )
- warn( "%s: link NOT established (0x%x) - check the cable.",
- dev->name, bmsr );
- if ( read_mii_word(pegasus, pegasus->phy, MII_ANLPA, &linkpart) )
- return 2;
- if ( !(linkpart & 1) )
- warn( "link partner stat %x", linkpart );
- data[0] = 0xc9;
- data[1] = 0;
- if ( linkpart & (ANLPA_100TX_FD | ANLPA_10T_FD) )
- data[1] |= 0x20; /* set full duplex */
- if ( linkpart & (ANLPA_100TX_FD | ANLPA_100TX_HD) )
- 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) );
- set_registers( pegasus, EthCtrl0, 3, data );
- return 0;
- }
- static void read_bulk_callback( struct urb *urb )
- {
- pegasus_t *pegasus = urb->context;
- struct net_device *net;
- int count = urb->actual_length, res;
- int rx_status;
- struct sk_buff *skb;
- __u16 pkt_len;
- if ( !pegasus || !(pegasus->flags & PEGASUS_RUNNING) )
- return;
- net = pegasus->net;
- if ( !netif_device_present(net) )
- return;
- if ( pegasus->flags & PEGASUS_RX_BUSY ) {
- pegasus->stats.rx_errors++;
- dbg("pegasus Rx busy");
- return;
- }
- pegasus->flags |= PEGASUS_RX_BUSY;
- switch ( urb->status ) {
- case USB_ST_NOERROR:
- break;
- case USB_ST_NORESPONSE:
- dbg( "reset MAC" );
- pegasus->flags &= ~PEGASUS_RX_BUSY;
- break;
- default:
- dbg( "%s: RX status %d", net->name, urb->status );
- goto goon;
- }
- if ( !count )
- goto goon;
- rx_status = le32_to_cpu(*(int *)(pegasus->rx_buff + count - 4));
- if ( rx_status & 0x000e0000 ) {
- dbg("%s: RX packet error %x", net->name, rx_status & 0xe0000);
- pegasus->stats.rx_errors++;
- if ( rx_status & 0x060000 )
- pegasus->stats.rx_length_errors++;
- if ( rx_status & 0x080000 )
- pegasus->stats.rx_crc_errors++;
- if ( rx_status & 0x100000 )
- pegasus->stats.rx_frame_errors++;
- goto goon;
- }
- pkt_len = (rx_status & 0xfff) - 8;
- if ( !(skb = dev_alloc_skb(pkt_len+2)) )
- goto goon;
- skb->dev = net;
- skb_reserve(skb, 2);
- eth_copy_and_sum(skb, pegasus->rx_buff, pkt_len, 0);
- skb_put(skb, pkt_len);
- skb->protocol = eth_type_trans(skb, net);
- netif_rx(skb);
- pegasus->stats.rx_packets++;
- pegasus->stats.rx_bytes += pkt_len;
- goon:
- FILL_BULK_URB( &pegasus->rx_urb, pegasus->usb,
- usb_rcvbulkpipe(pegasus->usb, 1),
- pegasus->rx_buff, PEGASUS_MAX_MTU,
- read_bulk_callback, pegasus );
- if ( (res = usb_submit_urb(&pegasus->rx_urb)) )
- warn( __FUNCTION__ " failed submint rx_urb %d", res);
- pegasus->flags &= ~PEGASUS_RX_BUSY;
- }
- static void write_bulk_callback( struct urb *urb )
- {
- pegasus_t *pegasus = urb->context;
- if ( !pegasus || !(pegasus->flags & PEGASUS_RUNNING) )
- return;
- if ( !netif_device_present(pegasus->net) )
- return;
-
- if ( urb->status )
- info("%s: TX status %d", pegasus->net->name, urb->status);
- pegasus->net->trans_start = jiffies;
- netif_wake_queue( pegasus->net );
- }
- #ifdef PEGASUS_USE_INTR
- static void intr_callback( struct urb *urb )
- {
- pegasus_t *pegasus = urb->context;
- struct net_device *net;
- __u8 *d;
- if ( !pegasus )
- return;
-
- switch ( urb->status ) {
- case USB_ST_NOERROR:
- break;
- case USB_ST_URB_KILLED:
- return;
- default:
- info("intr status %d", urb->status);
- }
- d = urb->transfer_buffer;
- net = pegasus->net;
- if ( d[0] & 0xfc ) {
- 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++;
- if ( d[0] & (NO_CARRIER | LOSS_CARRIER) )
- pegasus->stats.tx_carrier_errors++;
- }
- }
- #endif
- static void pegasus_tx_timeout( struct net_device *net )
- {
- pegasus_t *pegasus = net->priv;
- if ( !pegasus )
- return;
-
- warn("%s: Tx timed out.", net->name);
- pegasus->tx_urb.transfer_flags |= USB_ASYNC_UNLINK;
- 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 = net->priv;
- int count = ((skb->len+2) & 0x3f) ? skb->len+2 : skb->len+3;
- int res;
- __u16 l16 = skb->len;
-
- netif_stop_queue( net );
-
- ((__u16 *)pegasus->tx_buff)[0] = cpu_to_le16( l16 );
- memcpy(pegasus->tx_buff+2, skb->data, skb->len);
- FILL_BULK_URB( &pegasus->tx_urb, pegasus->usb,
- usb_sndbulkpipe(pegasus->usb, 2),
- pegasus->tx_buff, PEGASUS_MAX_MTU,
- write_bulk_callback, pegasus );
- pegasus->tx_urb.transfer_buffer_length = count;
- if ((res = usb_submit_urb(&pegasus->tx_urb))) {
- warn("failed tx_urb %d", res);
- 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 *)dev->priv)->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 ( data[1] < 0x80 ) {
- info( "intr interval will be changed from %ums to %ums",
- data[1], 0x80 );
- data[1] = 0x80;
- #ifdef PEGASUS_WRITE_EEPROM
- write_eprom_word( pegasus, 4, *(__u16 *)data );
- #endif
- }
- pegasus->intr_interval = data[1];
- }
- static int pegasus_open(struct net_device *net)
- {
- pegasus_t *pegasus = (pegasus_t *)net->priv;
- int res;
- if ( (res = enable_net_traffic(net, pegasus->usb)) ) {
- err("can't enable_net_traffic() - %d", res);
- return -EIO;
- }
- FILL_BULK_URB( &pegasus->rx_urb, pegasus->usb,
- usb_rcvbulkpipe(pegasus->usb, 1),
- pegasus->rx_buff, PEGASUS_MAX_MTU,
- read_bulk_callback, pegasus );
- if ( (res = usb_submit_urb(&pegasus->rx_urb)) )
- warn( __FUNCTION__ " failed rx_urb %d", res );
- #ifdef PEGASUS_USE_INTR
- 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)) )
- warn( __FUNCTION__ " failed intr_urb %d", res);
- #endif
- netif_start_queue( net );
- pegasus->flags |= PEGASUS_RUNNING;
- return 0;
- }
- static int pegasus_close( struct net_device *net )
- {
- pegasus_t *pegasus = net->priv;
- pegasus->flags &= ~PEGASUS_RUNNING;
- netif_stop_queue( net );
- if ( !(pegasus->flags & PEGASUS_UNPLUG) )
- disable_net_traffic( pegasus );
- usb_unlink_urb( &pegasus->rx_urb );
- usb_unlink_urb( &pegasus->tx_urb );
- usb_unlink_urb( &pegasus->ctrl_urb );
- #ifdef PEGASUS_USE_INTR
- usb_unlink_urb( &pegasus->intr_urb );
- #endif
- return 0;
- }
- static int pegasus_ioctl( struct net_device *net, struct ifreq *rq, int cmd )
- {
- __u16 *data = (__u16 *)&rq->ifr_data;
- pegasus_t *pegasus = net->priv;
- switch(cmd) {
- case SIOCDEVPRIVATE:
- data[0] = pegasus->phy;
- case SIOCDEVPRIVATE+1:
- read_mii_word(pegasus, data[0], data[1]&0x1f, &data[3]);
- return 0;
- case SIOCDEVPRIVATE+2:
- if ( !capable(CAP_NET_ADMIN) )
- return -EPERM;
- write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, data[2]);
- return 0;
- default:
- return -EOPNOTSUPP;
- }
- }
- static void pegasus_set_multicast( struct net_device *net )
- {
- pegasus_t *pegasus = net->priv;
- netif_stop_queue(net);
- if (net->flags & IFF_PROMISC) {
- pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS;
- info("%s: Promiscuous mode enabled", net->name);
- } else if ((net->mc_count > multicast_filter_limit) ||
- (net->flags & IFF_ALLMULTI)) {
- pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST;
- pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
- info("%s set allmulti", net->name);
- } else {
- pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST;
- pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
- }
- pegasus->flags |= ETH_REGS_CHANGE;
- ctrl_callback( &pegasus->ctrl_urb );
- netif_wake_queue(net);
- }
- 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 )
- {
- set_register( pegasus, Reg1d, 0 );
- set_register( pegasus, Reg7b, 2 );
- if ( pegasus->features & HAS_HOME_PNA && mii_mode )
- set_register( pegasus, Reg81, 6 );
- else
- set_register( pegasus, Reg81, 2 );
- }
- static void * pegasus_probe( struct usb_device *dev, unsigned int ifnum,
- const struct usb_device_id *id)
- {
- struct net_device *net;
- pegasus_t *pegasus;
- int dev_index = id - pegasus_ids;
- if (usb_set_configuration(dev, dev->config[0].bConfigurationValue)) {
- err("usb_set_configuration() failed");
- return NULL;
- }
- if(!(pegasus = kmalloc(sizeof(struct pegasus), GFP_KERNEL))) {
- err("out of memory allocating device structure");
- return NULL;
- }
- usb_inc_dev_use( dev );
- memset(pegasus, 0, sizeof(struct pegasus));
- pegasus->dev_index = dev_index;
- init_waitqueue_head( &pegasus->ctrl_wait );
- net = init_etherdev( NULL, 0 );
- if ( !net ) {
- kfree( pegasus );
- return NULL;
- }
-
- pegasus->usb = dev;
- pegasus->net = net;
- SET_MODULE_OWNER(net);
- net->priv = pegasus;
- 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;
- net->mtu = PEGASUS_MTU;
- pegasus->features = usb_dev_id[dev_index].private;
- #ifdef PEGASUS_USE_INTR
- get_interrupt_interval( pegasus );
- #endif
- if ( reset_mac(pegasus) ) {
- err("can't reset MAC");
- unregister_netdev( pegasus->net );
- kfree(pegasus->net);
- kfree(pegasus);
- pegasus = NULL;
- return NULL;
- }
- info( "%s: %s", net->name, usb_dev_id[dev_index].name );
- set_ethernet_addr( pegasus );
- if ( pegasus->features & PEGASUS_II ) {
- info( "setup Pegasus II specific registers" );
- setup_pegasus_II( pegasus );
- }
-
- pegasus->phy = mii_phy_probe( pegasus );
- if ( pegasus->phy == 0xff ) {
- warn( "can't locate MII phy, using default" );
- pegasus->phy = 1;
- }
- return pegasus;
- }
- static void pegasus_disconnect( struct usb_device *dev, void *ptr )
- {
- struct pegasus *pegasus = ptr;
- if ( !pegasus ) {
- warn("unregistering non-existant device");
- return;
- }
- pegasus->flags |= PEGASUS_UNPLUG;
- unregister_netdev( pegasus->net );
- usb_dec_dev_use( dev );
- kfree( pegasus->net );
- kfree( pegasus );
- pegasus = NULL;
- }
- static struct usb_driver pegasus_driver = {
- name: "pegasus",
- probe: pegasus_probe,
- disconnect: pegasus_disconnect,
- id_table: pegasus_ids,
- };
- int __init pegasus_init(void)
- {
- info(DRIVER_VERSION ":" DRIVER_DESC);
- return usb_register( &pegasus_driver );
- }
- void __exit pegasus_exit(void)
- {
- usb_deregister( &pegasus_driver );
- }
- module_init( pegasus_init );
- module_exit( pegasus_exit );