diff options
Diffstat (limited to 'drivers/staging/wlags49_h2/wl_netdev.c')
| -rw-r--r-- | drivers/staging/wlags49_h2/wl_netdev.c | 2070 |
1 files changed, 2070 insertions, 0 deletions
diff --git a/drivers/staging/wlags49_h2/wl_netdev.c b/drivers/staging/wlags49_h2/wl_netdev.c new file mode 100644 index 000000000000..ac3890247965 --- /dev/null +++ b/drivers/staging/wlags49_h2/wl_netdev.c @@ -0,0 +1,2070 @@ +/******************************************************************************* + * Agere Systems Inc. + * Wireless device driver for Linux (wlags49). + * + * Copyright (c) 1998-2003 Agere Systems Inc. + * All rights reserved. + * http://www.agere.com + * + * Initially developed by TriplePoint, Inc. + * http://www.triplepoint.com + * + *------------------------------------------------------------------------------ + * + * This file contains handler functions registered with the net_device + * structure. + * + *------------------------------------------------------------------------------ + * + * SOFTWARE LICENSE + * + * This software is provided subject to the following terms and conditions, + * which you should read carefully before using the software. Using this + * software indicates your acceptance of these terms and conditions. If you do + * not agree with these terms and conditions, do not use the software. + * + * Copyright © 2003 Agere Systems Inc. + * All rights reserved. + * + * Redistribution and use in source or binary forms, with or without + * modifications, are permitted provided that the following conditions are met: + * + * . Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following Disclaimer as comments in the code as + * well as in the documentation and/or other materials provided with the + * distribution. + * + * . Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following Disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * . Neither the name of Agere Systems Inc. nor the names of the contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * Disclaimer + * + * THIS SOFTWARE IS PROVIDED “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ANY + * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN + * RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * + ******************************************************************************/ + +/******************************************************************************* + * include files + ******************************************************************************/ +#include <wl_version.h> + +#include <linux/module.h> +#include <linux/types.h> +#include <linux/kernel.h> +// #include <linux/sched.h> +// #include <linux/ptrace.h> +// #include <linux/slab.h> +// #include <linux/ctype.h> +// #include <linux/string.h> +//#include <linux/timer.h> +// #include <linux/interrupt.h> +// #include <linux/in.h> +// #include <linux/delay.h> +// #include <linux/skbuff.h> +// #include <asm/io.h> +// #include <asm/system.h> +// #include <asm/bitops.h> + +#include <linux/netdevice.h> +#include <linux/ethtool.h> +#include <linux/etherdevice.h> +// #include <linux/skbuff.h> +// #include <linux/if_arp.h> +// #include <linux/ioport.h> + +#include <debug.h> + +#include <hcf.h> +#include <dhf.h> +// #include <hcfdef.h> + +#include <wl_if.h> +#include <wl_internal.h> +#include <wl_util.h> +#include <wl_priv.h> +#include <wl_main.h> +#include <wl_netdev.h> +#include <wl_wext.h> + +#ifdef USE_PROFILE +#include <wl_profile.h> +#endif /* USE_PROFILE */ + +#ifdef BUS_PCMCIA +#include <wl_cs.h> +#endif /* BUS_PCMCIA */ + +#ifdef BUS_PCI +#include <wl_pci.h> +#endif /* BUS_PCI */ + + +/******************************************************************************* + * global variables + ******************************************************************************/ +#if DBG +extern dbg_info_t *DbgInfo; +#endif /* DBG */ + + +#if HCF_ENCAP +#define MTU_MAX (HCF_MAX_MSG - ETH_HLEN - 8) +#else +#define MTU_MAX (HCF_MAX_MSG - ETH_HLEN) +#endif + +//static int mtu = MTU_MAX; +//MODULE_PARM(mtu, "i"); +//MODULE_PARM_DESC(mtu, "MTU"); + +/******************************************************************************* + * macros + ******************************************************************************/ +#define BLOCK_INPUT(buf, len) \ + desc->buf_addr = buf; \ + desc->BUF_SIZE = len; \ + status = hcf_rcv_msg(&(lp->hcfCtx), desc, 0) + +#define BLOCK_INPUT_DMA(buf, len) memcpy( buf, desc_next->buf_addr, pktlen ) + +/******************************************************************************* + * function prototypes + ******************************************************************************/ + +/******************************************************************************* + * wl_init() + ******************************************************************************* + * + * DESCRIPTION: + * + * We never need to do anything when a "Wireless" device is "initialized" + * by the net software, because we only register already-found cards. + * + * PARAMETERS: + * + * dev - a pointer to the device's net_device structure + * + * RETURNS: + * + * 0 on success + * errno value otherwise + * + ******************************************************************************/ +int wl_init( struct net_device *dev ) +{ +// unsigned long flags; +// struct wl_private *lp = wl_priv(dev); + /*------------------------------------------------------------------------*/ + + DBG_FUNC( "wl_init" ); + DBG_ENTER( DbgInfo ); + + DBG_PARAM( DbgInfo, "dev", "%s (0x%p)", dev->name, dev ); + + /* Nothing to do, but grab the spinlock anyway just in case we ever need + this routine */ +// wl_lock( lp, &flags ); +// wl_unlock( lp, &flags ); + + DBG_LEAVE( DbgInfo ); + return 0; +} // wl_init +/*============================================================================*/ + +/******************************************************************************* + * wl_config() + ******************************************************************************* + * + * DESCRIPTION: + * + * Implement the SIOCSIFMAP interface. + * + * PARAMETERS: + * + * dev - a pointer to the device's net_device structure + * map - a pointer to the device's ifmap structure + * + * RETURNS: + * + * 0 on success + * errno otherwise + * + ******************************************************************************/ +int wl_config( struct net_device *dev, struct ifmap *map ) +{ + DBG_FUNC( "wl_config" ); + DBG_ENTER( DbgInfo ); + + DBG_PARAM( DbgInfo, "dev", "%s (0x%p)", dev->name, dev ); + DBG_PARAM( DbgInfo, "map", "0x%p", map ); + + /* The only thing we care about here is a port change. Since this not needed, + ignore the request. */ + DBG_TRACE( DbgInfo, "%s: %s called.\n", dev->name, __FUNC__ ); + + DBG_LEAVE( DbgInfo ); + return 0; +} // wl_config +/*============================================================================*/ + +/******************************************************************************* + * wl_stats() + ******************************************************************************* + * + * DESCRIPTION: + * + * Return the current device statistics. + * + * PARAMETERS: + * + * dev - a pointer to the device's net_device structure + * + * RETURNS: + * + * a pointer to a net_device_stats structure containing the network + * statistics. + * + ******************************************************************************/ +struct net_device_stats *wl_stats( struct net_device *dev ) +{ +#ifdef USE_WDS + int count; +#endif /* USE_WDS */ + unsigned long flags; + struct net_device_stats *pStats; + struct wl_private *lp = wl_priv(dev); + /*------------------------------------------------------------------------*/ + + //DBG_FUNC( "wl_stats" ); + //DBG_ENTER( DbgInfo ); + //DBG_PARAM( DbgInfo, "dev", "%s (0x%p)", dev->name, dev ); + + pStats = NULL; + + wl_lock( lp, &flags ); + +#ifdef USE_RTS + if( lp->useRTS == 1 ) { + wl_unlock( lp, &flags ); + + //DBG_LEAVE( DbgInfo ); + return NULL; + } +#endif /* USE_RTS */ + + /* Return the statistics for the appropriate device */ +#ifdef USE_WDS + + for( count = 0; count < NUM_WDS_PORTS; count++ ) { + if( dev == lp->wds_port[count].dev ) { + pStats = &( lp->wds_port[count].stats ); + } + } + +#endif /* USE_WDS */ + + /* If pStats is still NULL, then the device is not a WDS port */ + if( pStats == NULL ) { + pStats = &( lp->stats ); + } + + wl_unlock( lp, &flags ); + + //DBG_LEAVE( DbgInfo ); + + return pStats; +} // wl_stats +/*============================================================================*/ + +/******************************************************************************* + * wl_open() + ******************************************************************************* + * + * DESCRIPTION: + * + * Open the device. + * + * PARAMETERS: + * + * dev - a pointer to the device's net_device structure + * + * RETURNS: + * + * 0 on success + * errno otherwise + * + ******************************************************************************/ +int wl_open(struct net_device *dev) +{ + int status = HCF_SUCCESS; + struct wl_private *lp = wl_priv(dev); + unsigned long flags; + /*------------------------------------------------------------------------*/ + + DBG_FUNC( "wl_open" ); + DBG_ENTER( DbgInfo ); + + wl_lock( lp, &flags ); + +#ifdef USE_RTS + if( lp->useRTS == 1 ) { + DBG_TRACE( DbgInfo, "Skipping device open, in RTS mode\n" ); + wl_unlock( lp, &flags ); + DBG_LEAVE( DbgInfo ); + return -EIO; + } +#endif /* USE_RTS */ + +#ifdef USE_PROFILE + parse_config( dev ); +#endif + + if( lp->portState == WVLAN_PORT_STATE_DISABLED ) { + DBG_TRACE( DbgInfo, "Enabling Port 0\n" ); + status = wl_enable( lp ); + + if( status != HCF_SUCCESS ) { + DBG_TRACE( DbgInfo, "Enable port 0 failed: 0x%x\n", status ); + } + } + + // Holding the lock too long, make a gap to allow other processes + wl_unlock(lp, &flags); + wl_lock( lp, &flags ); + + if ( strlen( lp->fw_image_filename ) ) { + DBG_TRACE( DbgInfo, ";???? Kludgy way to force a download\n" ); + status = wl_go( lp ); + } else { + status = wl_apply( lp ); + } + + // Holding the lock too long, make a gap to allow other processes + wl_unlock(lp, &flags); + wl_lock( lp, &flags ); + + if( status != HCF_SUCCESS ) { + // Unsuccesfull, try reset of the card to recover + status = wl_reset( dev ); + } + + // Holding the lock too long, make a gap to allow other processes + wl_unlock(lp, &flags); + wl_lock( lp, &flags ); + + if( status == HCF_SUCCESS ) { + netif_carrier_on( dev ); + WL_WDS_NETIF_CARRIER_ON( lp ); + + lp->is_handling_int = WL_HANDLING_INT; // Start handling interrupts + wl_act_int_on( lp ); + + netif_start_queue( dev ); + WL_WDS_NETIF_START_QUEUE( lp ); + } else { + wl_hcf_error( dev, status ); /* Report the error */ + netif_device_detach( dev ); /* Stop the device and queue */ + } + + wl_unlock( lp, &flags ); + + DBG_LEAVE( DbgInfo ); + return status; +} // wl_open +/*============================================================================*/ + +/******************************************************************************* + * wl_close() + ******************************************************************************* + * + * DESCRIPTION: + * + * Close the device. + * + * PARAMETERS: + * + * dev - a pointer to the device's net_device structure + * + * RETURNS: + * + * 0 on success + * errno otherwise + * + ******************************************************************************/ +int wl_close( struct net_device *dev ) +{ + struct wl_private *lp = wl_priv(dev); + unsigned long flags; + /*------------------------------------------------------------------------*/ + + DBG_FUNC("wl_close"); + DBG_ENTER(DbgInfo); + DBG_PARAM(DbgInfo, "dev", "%s (0x%p)", dev->name, dev); + + /* Mark the adapter as busy */ + netif_stop_queue( dev ); + WL_WDS_NETIF_STOP_QUEUE( lp ); + + netif_carrier_off( dev ); + WL_WDS_NETIF_CARRIER_OFF( lp ); + + /* Shutdown the adapter: + Disable adapter interrupts + Stop Tx/Rx + Update statistics + Set low power mode + */ + + wl_lock( lp, &flags ); + + wl_act_int_off( lp ); + lp->is_handling_int = WL_NOT_HANDLING_INT; // Stop handling interrupts + +#ifdef USE_RTS + if( lp->useRTS == 1 ) { + DBG_TRACE( DbgInfo, "Skipping device close, in RTS mode\n" ); + wl_unlock( lp, &flags ); + DBG_LEAVE( DbgInfo ); + return -EIO; + } +#endif /* USE_RTS */ + + /* Disable the ports */ + wl_disable( lp ); + + wl_unlock( lp, &flags ); + + DBG_LEAVE( DbgInfo ); + return 0; +} // wl_close +/*============================================================================*/ + +static void wl_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) +{ + strncpy(info->driver, DRIVER_NAME, sizeof(info->driver) - 1); + strncpy(info->version, DRV_VERSION_STR, sizeof(info->version) - 1); +// strncpy(info.fw_version, priv->fw_name, +// sizeof(info.fw_version) - 1); + +#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,20)) + if (dev->dev.parent) { + dev_set_name(dev->dev.parent, "%s", info->bus_info); + //strncpy(info->bus_info, dev->dev.parent->bus_id, + // sizeof(info->bus_info) - 1); +#else + if (dev->class_dev.parent) { + sizeof(info->bus_info) - 1); +#endif + } else { + snprintf(info->bus_info, sizeof(info->bus_info) - 1, + "PCMCIA FIXME"); +// "PCMCIA 0x%lx", priv->hw.iobase); + } +} // wl_get_drvinfo + +static struct ethtool_ops wl_ethtool_ops = { + .get_drvinfo = wl_get_drvinfo, + .get_link = ethtool_op_get_link, +}; + + +/******************************************************************************* + * wl_ioctl() + ******************************************************************************* + * + * DESCRIPTION: + * + * The IOCTL handler for the device. + * + * PARAMETERS: + * + * dev - a pointer to the device's net_device struct. + * rq - a pointer to the IOCTL request buffer. + * cmd - the IOCTL command code. + * + * RETURNS: + * + * 0 on success + * errno value otherwise + * + ******************************************************************************/ +int wl_ioctl( struct net_device *dev, struct ifreq *rq, int cmd ) +{ + struct wl_private *lp = wl_priv(dev); + unsigned long flags; + int ret = 0; + /*------------------------------------------------------------------------*/ + + DBG_FUNC( "wl_ioctl" ); + DBG_ENTER(DbgInfo); + DBG_PARAM(DbgInfo, "dev", "%s (0x%p)", dev->name, dev); + DBG_PARAM(DbgInfo, "rq", "0x%p", rq); + DBG_PARAM(DbgInfo, "cmd", "0x%04x", cmd); + + wl_lock( lp, &flags ); + + wl_act_int_off( lp ); + +#ifdef USE_RTS + if( lp->useRTS == 1 ) { + /* Handle any RTS IOCTL here */ + if( cmd == WL_IOCTL_RTS ) { + DBG_TRACE( DbgInfo, "IOCTL: WL_IOCTL_RTS\n" ); + ret = wvlan_rts( (struct rtsreq *)rq, dev->base_addr ); + } else { + DBG_TRACE( DbgInfo, "IOCTL not supported in RTS mode: 0x%X\n", cmd ); + ret = -EOPNOTSUPP; + } + + goto out_act_int_on_unlock; + } +#endif /* USE_RTS */ + + /* Only handle UIL IOCTL requests when the UIL has the system blocked. */ + if( !(( lp->flags & WVLAN2_UIL_BUSY ) && ( cmd != WVLAN2_IOCTL_UIL ))) { +#ifdef USE_UIL + struct uilreq *urq = (struct uilreq *)rq; +#endif /* USE_UIL */ + + switch( cmd ) { + // ================== Private IOCTLs (up to 16) ================== +#ifdef USE_UIL + case WVLAN2_IOCTL_UIL: + DBG_TRACE( DbgInfo, "IOCTL: WVLAN2_IOCTL_UIL\n" ); + ret = wvlan_uil( urq, lp ); + break; +#endif /* USE_UIL */ + + default: + DBG_TRACE(DbgInfo, "IOCTL CODE NOT SUPPORTED: 0x%X\n", cmd ); + ret = -EOPNOTSUPP; + break; + } + } else { + DBG_WARNING( DbgInfo, "DEVICE IS BUSY, CANNOT PROCESS REQUEST\n" ); + ret = -EBUSY; + } + +#ifdef USE_RTS +out_act_int_on_unlock: +#endif /* USE_RTS */ + wl_act_int_on( lp ); + + wl_unlock( lp, &flags ); + + DBG_LEAVE( DbgInfo ); + return ret; +} // wl_ioctl +/*============================================================================*/ + +#ifdef CONFIG_NET_POLL_CONTROLLER +void wl_poll(struct net_device *dev) +{ + struct wl_private *lp = wl_priv(dev); + unsigned long flags; + struct pt_regs regs; + + wl_lock( lp, &flags ); + wl_isr(dev->irq, dev, ®s); + wl_unlock( lp, &flags ); +} +#endif + +/******************************************************************************* + * wl_tx_timeout() + ******************************************************************************* + * + * DESCRIPTION: + * + * The handler called when, for some reason, a Tx request is not completed. + * + * PARAMETERS: + * + * dev - a pointer to the device's net_device struct. + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +void wl_tx_timeout( struct net_device *dev ) +{ +#ifdef USE_WDS + int count; +#endif /* USE_WDS */ + unsigned long flags; + struct wl_private *lp = wl_priv(dev); + struct net_device_stats *pStats = NULL; + /*------------------------------------------------------------------------*/ + + DBG_FUNC( "wl_tx_timeout" ); + DBG_ENTER( DbgInfo ); + + DBG_WARNING( DbgInfo, "%s: Transmit timeout.\n", dev->name ); + + wl_lock( lp, &flags ); + +#ifdef USE_RTS + if( lp->useRTS == 1 ) { + DBG_TRACE( DbgInfo, "Skipping tx_timeout handler, in RTS mode\n" ); + wl_unlock( lp, &flags ); + + DBG_LEAVE( DbgInfo ); + return; + } +#endif /* USE_RTS */ + + /* Figure out which device (the "root" device or WDS port) this timeout + is for */ +#ifdef USE_WDS + + for( count = 0; count < NUM_WDS_PORTS; count++ ) { + if( dev == lp->wds_port[count].dev ) { + pStats = &( lp->wds_port[count].stats ); + + /* Break the loop so that we can use the counter to access WDS + information in the private structure */ + break; + } + } + +#endif /* USE_WDS */ + + /* If pStats is still NULL, then the device is not a WDS port */ + if( pStats == NULL ) { + pStats = &( lp->stats ); + } + + /* Accumulate the timeout error */ + pStats->tx_errors++; + + wl_unlock( lp, &flags ); + + DBG_LEAVE( DbgInfo ); + return; +} // wl_tx_timeout +/*============================================================================*/ + +/******************************************************************************* + * wl_send() + ******************************************************************************* + * + * DESCRIPTION: + * + * The routine which performs data transmits. + * + * PARAMETERS: + * + * lp - a pointer to the device's wl_private struct. + * + * RETURNS: + * + * 0 on success + * 1 on error + * + ******************************************************************************/ +int wl_send( struct wl_private *lp ) +{ + + int status; + DESC_STRCT *desc; + WVLAN_LFRAME *txF = NULL; + struct list_head *element; + int len; + /*------------------------------------------------------------------------*/ + + DBG_FUNC( "wl_send" ); + + if( lp == NULL ) { + DBG_ERROR( DbgInfo, "Private adapter struct is NULL\n" ); + return FALSE; + } + if( lp->dev == NULL ) { + DBG_ERROR( DbgInfo, "net_device struct in wl_private is NULL\n" ); + return FALSE; + } + + /* Check for the availability of FIDs; if none are available, don't take any + frames off the txQ */ + if( lp->hcfCtx.IFB_RscInd == 0 ) { + return FALSE; + } + + /* Reclaim the TxQ Elements and place them back on the free queue */ + if( !list_empty( &( lp->txQ[0] ))) { + element = lp->txQ[0].next; + + txF = (WVLAN_LFRAME * )list_entry( element, WVLAN_LFRAME, node ); + if( txF != NULL ) { + lp->txF.skb = txF->frame.skb; + lp->txF.port = txF->frame.port; + + txF->frame.skb = NULL; + txF->frame.port = 0; + + list_del( &( txF->node )); + list_add( element, &( lp->txFree )); + + lp->txQ_count--; + + if( lp->txQ_count < TX_Q_LOW_WATER_MARK ) { + if( lp->netif_queue_on == FALSE ) { + DBG_TX( DbgInfo, "Kickstarting Q: %d\n", lp->txQ_count ); + netif_wake_queue( lp->dev ); + WL_WDS_NETIF_WAKE_QUEUE( lp ); + lp->netif_queue_on = TRUE; + } + } + } + } + + if( lp->txF.skb == NULL ) { + return FALSE; + } + + /* If the device has resources (FIDs) available, then Tx the packet */ + /* Format the TxRequest and send it to the adapter */ + len = lp->txF.skb->len < ETH_ZLEN ? ETH_ZLEN : lp->txF.skb->len; + + desc = &( lp->desc_tx ); + desc->buf_addr = lp->txF.skb->data; + desc->BUF_CNT = len; + desc->next_desc_addr = NULL; + + status = hcf_send_msg( &( lp->hcfCtx ), desc, lp->txF.port ); + + if( status == HCF_SUCCESS ) { + lp->dev->trans_start = jiffies; + + DBG_TX( DbgInfo, "Transmit...\n" ); + + if( lp->txF.port == HCF_PORT_0 ) { + lp->stats.tx_packets++; + lp->stats.tx_bytes += lp->txF.skb->len; + } + +#ifdef USE_WDS + else + { + lp->wds_port[(( lp->txF.port >> 8 ) - 1)].stats.tx_packets++; + lp->wds_port[(( lp->txF.port >> 8 ) - 1)].stats.tx_bytes += lp->txF.skb->len; + } + +#endif /* USE_WDS */ + + /* Free the skb and perform queue cleanup, as the buffer was + transmitted successfully */ + dev_kfree_skb( lp->txF.skb ); + + lp->txF.skb = NULL; + lp->txF.port = 0; + } + + return TRUE; +} // wl_send +/*============================================================================*/ + +/******************************************************************************* + * wl_tx() + ******************************************************************************* + * + * DESCRIPTION: + * + * The Tx handler function for the network layer. + * + * PARAMETERS: + * + * skb - a pointer to the sk_buff structure containing the data to transfer. + * dev - a pointer to the device's net_device structure. + * + * RETURNS: + * + * 0 on success + * 1 on error + * + ******************************************************************************/ +int wl_tx( struct sk_buff *skb, struct net_device *dev, int port ) +{ + unsigned long flags; + struct wl_private *lp = wl_priv(dev); + WVLAN_LFRAME *txF = NULL; + struct list_head *element; + /*------------------------------------------------------------------------*/ + + DBG_FUNC( "wl_tx" ); + + /* Grab the spinlock */ + wl_lock( lp, &flags ); + + if( lp->flags & WVLAN2_UIL_BUSY ) { + DBG_WARNING( DbgInfo, "UIL has device blocked\n" ); + /* Start dropping packets here??? */ + wl_unlock( lp, &flags ); + return 1; + } + +#ifdef USE_RTS + if( lp->useRTS == 1 ) { + DBG_PRINT( "RTS: we're getting a Tx...\n" ); + wl_unlock( lp, &flags ); + return 1; + } +#endif /* USE_RTS */ + + if( !lp->use_dma ) { + /* Get an element from the queue */ + element = lp->txFree.next; + txF = (WVLAN_LFRAME *)list_entry( element, WVLAN_LFRAME, node ); + if( txF == NULL ) { + DBG_ERROR( DbgInfo, "Problem with list_entry\n" ); + wl_unlock( lp, &flags ); + return 1; + } + /* Fill out the frame */ + txF->frame.skb = skb; + txF->frame.port = port; + /* Move the frame to the txQ */ + /* NOTE: Here's where we would do priority queueing */ + list_del( &( txF->node )); + list_add( &( txF->node ), &( lp->txQ[0] )); + + lp->txQ_count++; + if( lp->txQ_count >= DEFAULT_NUM_TX_FRAMES ) { + DBG_TX( DbgInfo, "Q Full: %d\n", lp->txQ_count ); + if( lp->netif_queue_on == TRUE ) { + netif_stop_queue( lp->dev ); + WL_WDS_NETIF_STOP_QUEUE( lp ); + lp->netif_queue_on = FALSE; + } + } + } + wl_act_int_off( lp ); /* Disable Interrupts */ + + /* Send the data to the hardware using the appropriate method */ +#ifdef ENABLE_DMA + if( lp->use_dma ) { + wl_send_dma( lp, skb, port ); + } + else +#endif + { + wl_send( lp ); + } + /* Re-enable Interrupts, release the spinlock and return */ + wl_act_int_on( lp ); + wl_unlock( lp, &flags ); + return 0; +} // wl_tx +/*============================================================================*/ + +/******************************************************************************* + * wl_rx() + ******************************************************************************* + * + * DESCRIPTION: + * + * The routine which performs data reception. + * + * PARAMETERS: + * + * dev - a pointer to the device's net_device structure. + * + * RETURNS: + * + * 0 on success + * 1 on error + * + ******************************************************************************/ +int wl_rx(struct net_device *dev) +{ + int port; + struct sk_buff *skb; + struct wl_private *lp = wl_priv(dev); + int status; + hcf_16 pktlen; + hcf_16 hfs_stat; + DESC_STRCT *desc; + /*------------------------------------------------------------------------*/ + + DBG_FUNC("wl_rx") + DBG_PARAM(DbgInfo, "dev", "%s (0x%p)", dev->name, dev); + + if(!( lp->flags & WVLAN2_UIL_BUSY )) { + +#ifdef USE_RTS + if( lp->useRTS == 1 ) { + DBG_PRINT( "RTS: We're getting an Rx...\n" ); + return -EIO; + } +#endif /* USE_RTS */ + + /* Read the HFS_STAT register from the lookahead buffer */ + hfs_stat = (hcf_16)(( lp->lookAheadBuf[HFS_STAT] ) | + ( lp->lookAheadBuf[HFS_STAT + 1] << 8 )); + + /* Make sure the frame isn't bad */ + if(( hfs_stat & HFS_STAT_ERR ) != HCF_SUCCESS ) { + DBG_WARNING( DbgInfo, "HFS_STAT_ERROR (0x%x) in Rx Packet\n", + lp->lookAheadBuf[HFS_STAT] ); + return -EIO; + } + + /* Determine what port this packet is for */ + port = ( hfs_stat >> 8 ) & 0x0007; + DBG_RX( DbgInfo, "Rx frame for port %d\n", port ); + + if(( pktlen = lp->hcfCtx.IFB_RxLen ) != 0 ) { + if(( skb = ALLOC_SKB( pktlen )) != NULL ) { + /* Set the netdev based on the port */ + switch( port ) { +#ifdef USE_WDS + case 1: + case 2: + case 3: + case 4: + case 5: + case 6: + skb->dev = lp->wds_port[port-1].dev; + break; +#endif /* USE_WDS */ + + case 0: + default: + skb->dev = dev; + break; + } + + desc = &( lp->desc_rx ); + + desc->next_desc_addr = NULL; + +/* +#define BLOCK_INPUT(buf, len) \ + desc->buf_addr = buf; \ + desc->BUF_SIZE = len; \ + status = hcf_rcv_msg(&(lp->hcfCtx), desc, 0) +*/ + + GET_PACKET( skb->dev, skb, pktlen ); + + if( status == HCF_SUCCESS ) { + netif_rx( skb ); + + if( port == 0 ) { + lp->stats.rx_packets++; + lp->stats.rx_bytes += pktlen; + } +#ifdef USE_WDS + else + { + lp->wds_port[port-1].stats.rx_packets++; + lp->wds_port[port-1].stats.rx_bytes += pktlen; + } +#endif /* USE_WDS */ + + dev->last_rx = jiffies; + +#ifdef WIRELESS_EXT +#ifdef WIRELESS_SPY + if( lp->spydata.spy_number > 0 ) { + char *srcaddr = skb->mac.raw + MAC_ADDR_SIZE; + + wl_spy_gather( dev, srcaddr ); + } +#endif /* WIRELESS_SPY */ +#endif /* WIRELESS_EXT */ + } else { + DBG_ERROR( DbgInfo, "Rx request to card FAILED\n" ); + + if( port == 0 ) { + lp->stats.rx_dropped++; + } +#ifdef USE_WDS + else + { + lp->wds_port[port-1].stats.rx_dropped++; + } +#endif /* USE_WDS */ + + dev_kfree_skb( skb ); + } + } else { + DBG_ERROR( DbgInfo, "Could not alloc skb\n" ); + + if( port == 0 ) { + lp->stats.rx_dropped++; + } +#ifdef USE_WDS + else + { + lp->wds_port[port-1].stats.rx_dropped++; + } +#endif /* USE_WDS */ + } + } + } + + return 0; +} // wl_rx +/*============================================================================*/ + +/******************************************************************************* + * wl_multicast() + ******************************************************************************* + * + * DESCRIPTION: + * + * Function to handle multicast packets + * + * PARAMETERS: + * + * dev - a pointer to the device's net_device structure. + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +#ifdef NEW_MULTICAST + +void wl_multicast( struct net_device *dev ) +{ +#if 1 //;? (HCF_TYPE) & HCF_TYPE_STA //;?should we return an error status in AP mode +//;?seems reasonable that even an AP-only driver could afford this small additional footprint + + int x; + struct dev_mc_list *mclist; + struct wl_private *lp = wl_priv(dev); + unsigned long flags; + /*------------------------------------------------------------------------*/ + + DBG_FUNC( "wl_multicast" ); + DBG_ENTER( DbgInfo ); + DBG_PARAM( DbgInfo, "dev", "%s (0x%p)", dev->name, dev ); + + if( !wl_adapter_is_open( dev )) { + DBG_LEAVE( DbgInfo ); + return; + } + +#if DBG + if( DBG_FLAGS( DbgInfo ) & DBG_PARAM_ON ) { + DBG_PRINT(" flags: %s%s%s\n", + ( dev->flags & IFF_PROMISC ) ? "Promiscous " : "", + ( dev->flags & IFF_MULTICAST ) ? "Multicast " : "", + ( dev->flags & IFF_ALLMULTI ) ? "All-Multicast" : "" ); + + DBG_PRINT( " mc_count: %d\n", dev->mc_count ); + + for( x = 0, mclist = dev->mc_list; mclist && x < dev->mc_count; + x++, mclist = mclist->next ) { + DBG_PRINT( " %s (%d)\n", DbgHwAddr(mclist->dmi_addr), + mclist->dmi_addrlen ); + } + } +#endif /* DBG */ + + if(!( lp->flags & WVLAN2_UIL_BUSY )) { + +#ifdef USE_RTS + if( lp->useRTS == 1 ) { + DBG_TRACE( DbgInfo, "Skipping multicast, in RTS mode\n" ); + + DBG_LEAVE( DbgInfo ); + return; + } +#endif /* USE_RTS */ + + wl_lock( lp, &flags ); + wl_act_int_off( lp ); + + if ( CNV_INT_TO_LITTLE( lp->hcfCtx.IFB_FWIdentity.comp_id ) == COMP_ID_FW_STA ) { + if( dev->flags & IFF_PROMISC ) { + /* Enable promiscuous mode */ + lp->ltvRecord.len = 2; + lp->ltvRecord.typ = CFG_PROMISCUOUS_MODE; + lp->ltvRecord.u.u16[0] = CNV_INT_TO_LITTLE( 1 ); + DBG_PRINT( "Enabling Promiscuous mode (IFF_PROMISC)\n" ); + hcf_put_info( &( lp->hcfCtx ), (LTVP)&( lp->ltvRecord )); + } + else if(( dev->mc_count > HCF_MAX_MULTICAST ) || + ( dev->flags & IFF_ALLMULTI )) { + /* Shutting off this filter will enable all multicast frames to + be sent up from the device; however, this is a static RID, so + a call to wl_apply() is needed */ + lp->ltvRecord.len = 2; + lp->ltvRecord.typ = CFG_CNF_RX_ALL_GROUP_ADDR; + lp->ltvRecord.u.u16[0] = CNV_INT_TO_LITTLE( 0 ); + DBG_PRINT( "Enabling all multicast mode (IFF_ALLMULTI)\n" ); + hcf_put_info( &( lp->hcfCtx ), (LTVP)&( lp->ltvRecord )); + wl_apply( lp ); + } + else if( dev->mc_count != 0 ) { + /* Set the multicast addresses */ + lp->ltvRecord.len = ( dev->mc_count * 3 ) + 1; + lp->ltvRecord.typ = CFG_GROUP_ADDR; + + for( x = 0, mclist = dev->mc_list; + ( x < dev->mc_count ) && ( mclist != NULL ); + x++, mclist = mclist->next ) { + memcpy( &( lp->ltvRecord.u.u8[x * ETH_ALEN] ), + mclist->dmi_addr, ETH_ALEN ); + } + DBG_PRINT( "Setting multicast list\n" ); + hcf_put_info( &( lp->hcfCtx ), (LTVP)&( lp->ltvRecord )); + } else { + /* Disable promiscuous mode */ + lp->ltvRecord.len = 2; + lp->ltvRecord.typ = CFG_PROMISCUOUS_MODE; + lp->ltvRecord.u.u16[0] = CNV_INT_TO_LITTLE( 0 ); + DBG_PRINT( "Disabling Promiscuous mode\n" ); + hcf_put_info( &( lp->hcfCtx ), (LTVP)&( lp->ltvRecord )); + + /* Disable multicast mode */ + lp->ltvRecord.len = 2; + lp->ltvRecord.typ = CFG_GROUP_ADDR; + DBG_PRINT( "Disabling Multicast mode\n" ); + hcf_put_info( &( lp->hcfCtx ), (LTVP)&( lp->ltvRecord )); + + /* Turning on this filter will prevent all multicast frames from + being sent up from the device; however, this is a static RID, + so a call to wl_apply() is needed */ + lp->ltvRecord.len = 2; + lp->ltvRecord.typ = CFG_CNF_RX_ALL_GROUP_ADDR; + lp->ltvRecord.u.u16[0] = CNV_INT_TO_LITTLE( 1 ); + DBG_PRINT( "Disabling all multicast mode (IFF_ALLMULTI)\n" ); + hcf_put_info( &( lp->hcfCtx ), (LTVP)&( lp->ltvRecord )); + wl_apply( lp ); + } + } + wl_act_int_on( lp ); + wl_unlock( lp, &flags ); + } + DBG_LEAVE( DbgInfo ); +#endif /* HCF_STA */ +} // wl_multicast +/*============================================================================*/ + +#else /* NEW_MULTICAST */ + +void wl_multicast( struct net_device *dev, int num_addrs, void *addrs ) +{ + DBG_FUNC( "wl_multicast"); + DBG_ENTER(DbgInfo); + + DBG_PARAM( DbgInfo, "dev", "%s (0x%p)", dev->name, dev ); + DBG_PARAM( DbgInfo, "num_addrs", "%d", num_addrs ); + DBG_PARAM( DbgInfo, "addrs", "0x%p", addrs ); + +#error Obsolete set multicast interface! + + DBG_LEAVE( DbgInfo ); +} // wl_multicast +/*============================================================================*/ + +#endif /* NEW_MULTICAST */ + +#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,30)) +static const struct net_device_ops wl_netdev_ops = +{ + .ndo_start_xmit = &wl_tx_port0, + + .ndo_set_config = &wl_config, + .ndo_get_stats = &wl_stats, + .ndo_set_multicast_list = &wl_multicast, + + .ndo_init = &wl_insert, + .ndo_open = &wl_adapter_open, + .ndo_stop = &wl_adapter_close, + .ndo_do_ioctl = &wl_ioctl, + +#ifdef HAVE_TX_TIMEOUT + .ndo_tx_timeout = &wl_tx_timeout, +#endif + +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = wl_poll, +#endif +}; +#endif // (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,30)) + +/******************************************************************************* + * wl_device_alloc() + ******************************************************************************* + * + * DESCRIPTION: + * + * Create instances of net_device and wl_private for the new adapter + * and register the device's entry points in the net_device structure. + * + * PARAMETERS: + * + * N/A + * + * RETURNS: + * + * a pointer to an allocated and initialized net_device struct for this + * device. + * + ******************************************************************************/ +struct net_device * wl_device_alloc( void ) +{ + struct net_device *dev = NULL; + struct wl_private *lp = NULL; + /*------------------------------------------------------------------------*/ + + DBG_FUNC( "wl_device_alloc" ); + DBG_ENTER( DbgInfo ); + + /* Alloc a net_device struct */ + dev = alloc_etherdev(sizeof(struct wl_private)); + if (!dev) + return NULL; + + /* Initialize the 'next' pointer in the struct. Currently only used for PCI, + but do it here just in case it's used for other buses in the future */ + lp = wl_priv(dev); + + + /* Check MTU */ + if( dev->mtu > MTU_MAX ) + { + DBG_WARNING( DbgInfo, "%s: MTU set too high, limiting to %d.\n", + dev->name, MTU_MAX ); + dev->mtu = MTU_MAX; + } + + /* Setup the function table in the device structure. */ + + dev->wireless_handlers = (struct iw_handler_def *)&wl_iw_handler_def; + lp->wireless_data.spy_data = &lp->spy_data; + dev->wireless_data = &lp->wireless_data; + +#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,30)) + dev->netdev_ops = &wl_netdev_ops; +#else + dev->hard_start_xmit = &wl_tx_port0; + + dev->set_config = &wl_config; + dev->get_stats = &wl_stats; + dev->set_multicast_list = &wl_multicast; + + dev->init = &wl_insert; + dev->open = &wl_adapter_open; + dev->stop = &wl_adapter_close; + dev->do_ioctl = &wl_ioctl; + +#ifdef HAVE_TX_TIMEOUT + dev->tx_timeout = &wl_tx_timeout; +#endif + +#ifdef CONFIG_NET_POLL_CONTROLLER + dev->poll_controller = wl_poll; +#endif + +#endif // (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,30)) + +#ifdef HAVE_TX_TIMEOUT + dev->watchdog_timeo = TX_TIMEOUT; +#endif + + dev->ethtool_ops = &wl_ethtool_ops; + + netif_stop_queue( dev ); + + /* Allocate virutal devices for WDS support if needed */ + WL_WDS_DEVICE_ALLOC( lp ); + + DBG_LEAVE( DbgInfo ); + return dev; +} // wl_device_alloc +/*============================================================================*/ + +/******************************************************************************* + * wl_device_dealloc() + ******************************************************************************* + * + * DESCRIPTION: + * + * Free instances of net_device and wl_private strcutres for an adapter + * and perform basic cleanup. + * + * PARAMETERS: + * + * dev - a pointer to the device's net_device structure. + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +void wl_device_dealloc( struct net_device *dev ) +{ +// struct wl_private *lp = wl_priv(dev); + /*------------------------------------------------------------------------*/ + + DBG_FUNC( "wl_device_dealloc" ); + DBG_ENTER( DbgInfo ); + + /* Dealloc the WDS ports */ + WL_WDS_DEVICE_DEALLOC( lp ); + + free_netdev( dev ); + + DBG_LEAVE( DbgInfo ); + return; +} // wl_device_dealloc +/*============================================================================*/ + +/******************************************************************************* + * wl_tx_port0() + ******************************************************************************* + * + * DESCRIPTION: + * + * The handler routine for Tx over HCF_PORT_0. + * + * PARAMETERS: + * + * skb - a pointer to the sk_buff to transmit. + * dev - a pointer to a net_device structure representing HCF_PORT_0. + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +int wl_tx_port0( struct sk_buff *skb, struct net_device *dev ) +{ + DBG_TX( DbgInfo, "Tx on Port 0\n" ); + + return wl_tx( skb, dev, HCF_PORT_0 ); +#ifdef ENABLE_DMA + return wl_tx_dma( skb, dev, HCF_PORT_0 ); +#endif +} // wl_tx_port0 +/*============================================================================*/ + +#ifdef USE_WDS + +/******************************************************************************* + * wl_tx_port1() + ******************************************************************************* + * + * DESCRIPTION: + * + * The handler routine for Tx over HCF_PORT_1. + * + * PARAMETERS: + * + * skb - a pointer to the sk_buff to transmit. + * dev - a pointer to a net_device structure representing HCF_PORT_1. + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +int wl_tx_port1( struct sk_buff *skb, struct net_device *dev ) +{ + DBG_TX( DbgInfo, "Tx on Port 1\n" ); + return wl_tx( skb, dev, HCF_PORT_1 ); +} // wl_tx_port1 +/*============================================================================*/ + +/******************************************************************************* + * wl_tx_port2() + ******************************************************************************* + * + * DESCRIPTION: + * + * The handler routine for Tx over HCF_PORT_2. + * + * PARAMETERS: + * + * skb - a pointer to the sk_buff to transmit. + * dev - a pointer to a net_device structure representing HCF_PORT_2. + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +int wl_tx_port2( struct sk_buff *skb, struct net_device *dev ) +{ + DBG_TX( DbgInfo, "Tx on Port 2\n" ); + return wl_tx( skb, dev, HCF_PORT_2 ); +} // wl_tx_port2 +/*============================================================================*/ + +/******************************************************************************* + * wl_tx_port3() + ******************************************************************************* + * + * DESCRIPTION: + * + * The handler routine for Tx over HCF_PORT_3. + * + * PARAMETERS: + * + * skb - a pointer to the sk_buff to transmit. + * dev - a pointer to a net_device structure representing HCF_PORT_3. + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +int wl_tx_port3( struct sk_buff *skb, struct net_device *dev ) +{ + DBG_TX( DbgInfo, "Tx on Port 3\n" ); + return wl_tx( skb, dev, HCF_PORT_3 ); +} // wl_tx_port3 +/*============================================================================*/ + +/******************************************************************************* + * wl_tx_port4() + ******************************************************************************* + * + * DESCRIPTION: + * + * The handler routine for Tx over HCF_PORT_4. + * + * PARAMETERS: + * + * skb - a pointer to the sk_buff to transmit. + * dev - a pointer to a net_device structure representing HCF_PORT_4. + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +int wl_tx_port4( struct sk_buff *skb, struct net_device *dev ) +{ + DBG_TX( DbgInfo, "Tx on Port 4\n" ); + return wl_tx( skb, dev, HCF_PORT_4 ); +} // wl_tx_port4 +/*============================================================================*/ + +/******************************************************************************* + * wl_tx_port5() + ******************************************************************************* + * + * DESCRIPTION: + * + * The handler routine for Tx over HCF_PORT_5. + * + * PARAMETERS: + * + * skb - a pointer to the sk_buff to transmit. + * dev - a pointer to a net_device structure representing HCF_PORT_5. + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +int wl_tx_port5( struct sk_buff *skb, struct net_device *dev ) +{ + DBG_TX( DbgInfo, "Tx on Port 5\n" ); + return wl_tx( skb, dev, HCF_PORT_5 ); +} // wl_tx_port5 +/*============================================================================*/ + +/******************************************************************************* + * wl_tx_port6() + ******************************************************************************* + * + * DESCRIPTION: + * + * The handler routine for Tx over HCF_PORT_6. + * + * PARAMETERS: + * + * skb - a pointer to the sk_buff to transmit. + * dev - a pointer to a net_device structure representing HCF_PORT_6. + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +int wl_tx_port6( struct sk_buff *skb, struct net_device *dev ) +{ + DBG_TX( DbgInfo, "Tx on Port 6\n" ); + return wl_tx( skb, dev, HCF_PORT_6 ); +} // wl_tx_port6 +/*============================================================================*/ + +/******************************************************************************* + * wl_wds_device_alloc() + ******************************************************************************* + * + * DESCRIPTION: + * + * Create instances of net_device to represent the WDS ports, and register + * the device's entry points in the net_device structure. + * + * PARAMETERS: + * + * lp - a pointer to the device's private adapter structure + * + * RETURNS: + * + * N/A, but will place pointers to the allocated and initialized net_device + * structs in the private adapter structure. + * + ******************************************************************************/ +void wl_wds_device_alloc( struct wl_private *lp ) +{ + int count; + /*------------------------------------------------------------------------*/ + + DBG_FUNC( "wl_wds_device_alloc" ); + DBG_ENTER( DbgInfo ); + + /* WDS support requires additional net_device structs to be allocated, + so that user space apps can use these virtual devices to specify the + port on which to Tx/Rx */ + for( count = 0; count < NUM_WDS_PORTS; count++ ) { + struct net_device *dev_wds = NULL; + + dev_wds = kmalloc( sizeof( struct net_device ), GFP_KERNEL ); + memset( dev_wds, 0, sizeof( struct net_device )); + + ether_setup( dev_wds ); + + lp->wds_port[count].dev = dev_wds; + + /* Re-use wl_init for all the devices, as it currently does nothing, but + is required. Re-use the stats/tx_timeout handler for all as well; the + WDS port which is requesting these operations can be determined by + the net_device pointer. Set the private member of all devices to point + to the same net_device struct; that way, all information gets + funnelled through the one "real" net_device. Name the WDS ports + "wds<n>" */ + lp->wds_port[count].dev->init = &wl_init; + lp->wds_port[count].dev->get_stats = &wl_stats; + lp->wds_port[count].dev->tx_timeout = &wl_tx_timeout; + lp->wds_port[count].dev->watchdog_timeo = TX_TIMEOUT; + lp->wds_port[count].dev->priv = lp; + + sprintf( lp->wds_port[count].dev->name, "wds%d", count ); + } + + /* Register the Tx handlers */ + lp->wds_port[0].dev->hard_start_xmit = &wl_tx_port1; + lp->wds_port[1].dev->hard_start_xmit = &wl_tx_port2; + lp->wds_port[2].dev->hard_start_xmit = &wl_tx_port3; + lp->wds_port[3].dev->hard_start_xmit = &wl_tx_port4; + lp->wds_port[4].dev->hard_start_xmit = &wl_tx_port5; + lp->wds_port[5].dev->hard_start_xmit = &wl_tx_port6; + + WL_WDS_NETIF_STOP_QUEUE( lp ); + + DBG_LEAVE( DbgInfo ); + return; +} // wl_wds_device_alloc +/*============================================================================*/ + +/******************************************************************************* + * wl_wds_device_dealloc() + ******************************************************************************* + * + * DESCRIPTION: + * + * Free instances of net_device structures used to support WDS. + * + * PARAMETERS: + * + * lp - a pointer to the device's private adapter structure + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +void wl_wds_device_dealloc( struct wl_private *lp ) +{ + int count; + /*------------------------------------------------------------------------*/ + + DBG_FUNC( "wl_wds_device_dealloc" ); + DBG_ENTER( DbgInfo ); + + for( count = 0; count < NUM_WDS_PORTS; count++ ) { + struct net_device *dev_wds = NULL; + + dev_wds = lp->wds_port[count].dev; + + if( dev_wds != NULL ) { + if( dev_wds->flags & IFF_UP ) { + dev_close( dev_wds ); + dev_wds->flags &= ~( IFF_UP | IFF_RUNNING ); + } + + kfree( dev_wds ); + lp->wds_port[count].dev = NULL; + } + } + + DBG_LEAVE( DbgInfo ); + return; +} // wl_wds_device_dealloc +/*============================================================================*/ + +/******************************************************************************* + * wl_wds_netif_start_queue() + ******************************************************************************* + * + * DESCRIPTION: + * + * Used to start the netif queues of all the "virtual" network devices + * which repesent the WDS ports. + * + * PARAMETERS: + * + * lp - a pointer to the device's private adapter structure + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +void wl_wds_netif_start_queue( struct wl_private *lp ) +{ + int count; + /*------------------------------------------------------------------------*/ + + if( lp != NULL ) { + for( count = 0; count < NUM_WDS_PORTS; count++ ) { + if( lp->wds_port[count].is_registered && + lp->wds_port[count].netif_queue_on == FALSE ) { + netif_start_queue( lp->wds_port[count].dev ); + lp->wds_port[count].netif_queue_on = TRUE; + } + } + } + + return; +} // wl_wds_netif_start_queue +/*============================================================================*/ + +/******************************************************************************* + * wl_wds_netif_stop_queue() + ******************************************************************************* + * + * DESCRIPTION: + * + * Used to stop the netif queues of all the "virtual" network devices + * which repesent the WDS ports. + * + * PARAMETERS: + * + * lp - a pointer to the device's private adapter structure + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +void wl_wds_netif_stop_queue( struct wl_private *lp ) +{ + int count; + /*------------------------------------------------------------------------*/ + + if( lp != NULL ) { + for( count = 0; count < NUM_WDS_PORTS; count++ ) { + if( lp->wds_port[count].is_registered && + lp->wds_port[count].netif_queue_on == TRUE ) { + netif_stop_queue( lp->wds_port[count].dev ); + lp->wds_port[count].netif_queue_on = FALSE; + } + } + } + + return; +} // wl_wds_netif_stop_queue +/*============================================================================*/ + +/******************************************************************************* + * wl_wds_netif_wake_queue() + ******************************************************************************* + * + * DESCRIPTION: + * + * Used to wake the netif queues of all the "virtual" network devices + * which repesent the WDS ports. + * + * PARAMETERS: + * + * lp - a pointer to the device's private adapter structure + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +void wl_wds_netif_wake_queue( struct wl_private *lp ) +{ + int count; + /*------------------------------------------------------------------------*/ + + if( lp != NULL ) { + for( count = 0; count < NUM_WDS_PORTS; count++ ) { + if( lp->wds_port[count].is_registered && + lp->wds_port[count].netif_queue_on == FALSE ) { + netif_wake_queue( lp->wds_port[count].dev ); + lp->wds_port[count].netif_queue_on = TRUE; + } + } + } + + return; +} // wl_wds_netif_wake_queue +/*============================================================================*/ + +/******************************************************************************* + * wl_wds_netif_carrier_on() + ******************************************************************************* + * + * DESCRIPTION: + * + * Used to signal the network layer that carrier is present on all of the + * "virtual" network devices which repesent the WDS ports. + * + * PARAMETERS: + * + * lp - a pointer to the device's private adapter structure + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +void wl_wds_netif_carrier_on( struct wl_private *lp ) +{ + int count; + /*------------------------------------------------------------------------*/ + + if( lp != NULL ) { + for( count = 0; count < NUM_WDS_PORTS; count++ ) { + if( lp->wds_port[count].is_registered ) { + netif_carrier_on( lp->wds_port[count].dev ); + } + } + } + + return; +} // wl_wds_netif_carrier_on +/*============================================================================*/ + +/******************************************************************************* + * wl_wds_netif_carrier_off() + ******************************************************************************* + * + * DESCRIPTION: + * + * Used to signal the network layer that carrier is NOT present on all of + * the "virtual" network devices which repesent the WDS ports. + * + * PARAMETERS: + * + * lp - a pointer to the device's private adapter structure + * + * RETURNS: + * + * N/A + * + ******************************************************************************/ +void wl_wds_netif_carrier_off( struct wl_private *lp ) +{ + int count; + /*------------------------------------------------------------------------*/ + + if( lp != NULL ) { + for( count = 0; count < NUM_WDS_PORTS; count++ ) { + if( lp->wds_port[count].is_registered ) { + netif_carrier_off( lp->wds_port[count].dev ); + } + } + } + + return; +} // wl_wds_netif_carrier_off +/*============================================================================*/ + +#endif /* USE_WDS */ + +#ifdef ENABLE_DMA +/******************************************************************************* + * wl_send_dma() + ******************************************************************************* + * + * DESCRIPTION: + * + * The routine which performs data transmits when using busmaster DMA. + * + * PARAMETERS: + * + * lp - a pointer to the device's wl_private struct. + * skb - a pointer to the network layer's data buffer. + * port - the Hermes port on which to transmit. + * + * RETURNS: + * + * 0 on success + * 1 on error + * + ******************************************************************************/ +int wl_send_dma( struct wl_private *lp, struct sk_buff *skb, int port ) +{ + int len; + DESC_STRCT *desc = NULL; + DESC_STRCT *desc_next = NULL; + /*------------------------------------------------------------------------*/ + + DBG_FUNC( "wl_send_dma" ); + + if( lp == NULL ) + { + DBG_ERROR( DbgInfo, "Private adapter struct is NULL\n" ); + return FALSE; + } + + if( lp->dev == NULL ) + { + DBG_ERROR( DbgInfo, "net_device struct in wl_private is NULL\n" ); + return FALSE; + } + + /* AGAIN, ALL THE QUEUEING DONE HERE IN I/O MODE IS NOT PERFORMED */ + + if( skb == NULL ) + { + DBG_WARNING (DbgInfo, "Nothing to send.\n"); + return FALSE; + } + + len = skb->len; + + /* Get a free descriptor */ + desc = wl_pci_dma_get_tx_packet( lp ); + + if( desc == NULL ) + { + if( lp->netif_queue_on == TRUE ) { + netif_stop_queue( lp->dev ); + WL_WDS_NETIF_STOP_QUEUE( lp ); + lp->netif_queue_on = FALSE; + + dev_kfree_skb( skb ); + return 0; + } + } + + SET_BUF_CNT( desc, /*HCF_DMA_FD_CNT*/HFS_ADDR_DEST ); + SET_BUF_SIZE( desc, HCF_DMA_TX_BUF1_SIZE ); + + desc_next = desc->next_desc_addr; + + if( desc_next->buf_addr == NULL ) + { + DBG_ERROR( DbgInfo, "DMA descriptor buf_addr is NULL\n" ); + return FALSE; + } + + /* Copy the payload into the DMA packet */ + memcpy( desc_next->buf_addr, skb->data, len ); + + SET_BUF_CNT( desc_next, len ); + SET_BUF_SIZE( desc_next, HCF_MAX_PACKET_SIZE ); + + hcf_dma_tx_put( &( lp->hcfCtx ), desc, 0 ); + + /* Free the skb and perform queue cleanup, as the buffer was + transmitted successfully */ + dev_kfree_skb( skb ); + + return TRUE; +} // wl_send_dma +/*============================================================================*/ + +/******************************************************************************* + * wl_rx_dma() + ******************************************************************************* + * + * DESCRIPTION: + * + * The routine which performs data reception when using busmaster DMA. + * + * PARAMETERS: + * + * dev - a pointer to the device's net_device structure. + * + * RETURNS: + * + * 0 on success + * 1 on error + * + ******************************************************************************/ +int wl_rx_dma( struct net_device *dev ) +{ + int port; + hcf_16 pktlen; + hcf_16 hfs_stat; + struct sk_buff *skb; + struct wl_private *lp = NULL; + DESC_STRCT *desc, *desc_next; + //CFG_MB_INFO_RANGE2_STRCT x; + /*------------------------------------------------------------------------*/ + + DBG_FUNC("wl_rx") + DBG_PARAM(DbgInfo, "dev", "%s (0x%p)", dev->name, dev); + + if((( lp = (struct wl_private *)dev->priv ) != NULL ) && + !( lp->flags & WVLAN2_UIL_BUSY )) { + +#ifdef USE_RTS + if( lp->useRTS == 1 ) { + DBG_PRINT( "RTS: We're getting an Rx...\n" ); + return -EIO; + } +#endif /* USE_RTS */ + + //if( lp->dma.status == 0 ) + //{ + desc = hcf_dma_rx_get( &( lp->hcfCtx )); + + if( desc != NULL ) + { + /* Check and see if we rcvd. a WMP frame */ + /* + if((( *(hcf_8 *)&desc->buf_addr[HFS_STAT] ) & + ( HFS_STAT_MSG_TYPE | HFS_STAT_ERR )) == HFS_STAT_WMP_MSG ) + { + DBG_TRACE( DbgInfo, "Got a WMP frame\n" ); + + x.len = sizeof( CFG_MB_INFO_RANGE2_STRCT ) / sizeof( hcf_16 ); + x.typ = CFG_MB_INFO; + x.base_typ = CFG_WMP; + x.frag_cnt = 2; + x.frag_buf[0].frag_len = GET_BUF_CNT( descp ) / sizeof( hcf_16 ); + x.frag_buf[0].frag_addr = (hcf_8 *) descp->buf_addr ; + x.frag_buf[1].frag_len = ( GET_BUF_CNT( descp->next_desc_addr ) + 1 ) / sizeof( hcf_16 ); + x.frag_buf[1].frag_addr = (hcf_8 *) descp->next_desc_addr->buf_addr ; + + hcf_put_info( &( lp->hcfCtx ), (LTVP)&x ); + } + */ + + desc_next = desc->next_desc_addr; + + /* Make sure the buffer isn't empty */ + if( GET_BUF_CNT( desc ) == 0 ) { + DBG_WARNING( DbgInfo, "Buffer is empty!\n" ); + + /* Give the descriptor back to the HCF */ + hcf_dma_rx_put( &( lp->hcfCtx ), desc ); + return -EIO; + } + + /* Read the HFS_STAT register from the lookahead buffer */ + hfs_stat = (hcf_16)( desc->buf_addr[HFS_STAT/2] ); + + /* Make sure the frame isn't bad */ + if(( hfs_stat & HFS_STAT_ERR ) != HCF_SUCCESS ) + { + DBG_WARNING( DbgInfo, "HFS_STAT_ERROR (0x%x) in Rx Packet\n", + desc->buf_addr[HFS_STAT/2] ); + + /* Give the descriptor back to the HCF */ + hcf_dma_rx_put( &( lp->hcfCtx ), desc ); + return -EIO; + } + + /* Determine what port this packet is for */ + port = ( hfs_stat >> 8 ) & 0x0007; + DBG_RX( DbgInfo, "Rx frame for port %d\n", port ); + + if(( pktlen = GET_BUF_CNT( desc_next )) != 0 ) { + if(( skb = ALLOC_SKB( pktlen )) != NULL ) { + switch( port ) { +#ifdef USE_WDS + case 1: + case 2: + case 3: + case 4: + case 5: + case 6: + skb->dev = lp->wds_port[port-1].dev; + break; +#endif /* USE_WDS */ + + case 0: + default: + skb->dev = dev; + break; + } + + GET_PACKET_DMA( skb->dev, skb, pktlen ); + + /* Give the descriptor back to the HCF */ + hcf_dma_rx_put( &( lp->hcfCtx ), desc ); + + netif_rx( skb ); + + if( port == 0 ) { + lp->stats.rx_packets++; + lp->stats.rx_bytes += pktlen; + } +#ifdef USE_WDS + else + { + lp->wds_port[port-1].stats.rx_packets++; + lp->wds_port[port-1].stats.rx_bytes += pktlen; + } +#endif /* USE_WDS */ + + dev->last_rx = jiffies; + + } else { + DBG_ERROR( DbgInfo, "Could not alloc skb\n" ); + + if( port == 0 ) + { + lp->stats.rx_dropped++; + } +#ifdef USE_WDS + else + { + lp->wds_port[port-1].stats.rx_dropped++; + } +#endif /* USE_WDS */ + } + } + } + //} + } + + return 0; +} // wl_rx_dma +/*============================================================================*/ +#endif // ENABLE_DMA |