1 /*******************************************************************************
3 * Wireless device driver for Linux (wlags49).
5 * Copyright (c) 1998-2003 Agere Systems Inc.
9 * Initially developed by TriplePoint, Inc.
10 * http://www.triplepoint.com
12 *------------------------------------------------------------------------------
14 * This file contains handler functions registered with the net_device
17 *------------------------------------------------------------------------------
21 * This software is provided subject to the following terms and conditions,
22 * which you should read carefully before using the software. Using this
23 * software indicates your acceptance of these terms and conditions. If you do
24 * not agree with these terms and conditions, do not use the software.
26 * Copyright © 2003 Agere Systems Inc.
27 * All rights reserved.
29 * Redistribution and use in source or binary forms, with or without
30 * modifications, are permitted provided that the following conditions are met:
32 * . Redistributions of source code must retain the above copyright notice, this
33 * list of conditions and the following Disclaimer as comments in the code as
34 * well as in the documentation and/or other materials provided with the
37 * . Redistributions in binary form must reproduce the above copyright notice,
38 * this list of conditions and the following Disclaimer in the documentation
39 * and/or other materials provided with the distribution.
41 * . Neither the name of Agere Systems Inc. nor the names of the contributors
42 * may be used to endorse or promote products derived from this software
43 * without specific prior written permission.
47 * THIS SOFTWARE IS PROVIDED \93AS IS\94 AND ANY EXPRESS OR IMPLIED WARRANTIES,
48 * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF
49 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ANY
50 * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN
51 * RISK. IN NO EVENT SHALL AGERE SYSTEMS INC. OR CONTRIBUTORS BE LIABLE FOR ANY
52 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
53 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
54 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
55 * ON ANY THEORY OF LIABILITY, INCLUDING, BUT NOT LIMITED TO, CONTRACT, STRICT
56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
57 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
60 ******************************************************************************/
62 /*******************************************************************************
64 ******************************************************************************/
65 #include <wl_version.h>
67 #include <linux/module.h>
68 #include <linux/slab.h>
69 #include <linux/types.h>
70 #include <linux/kernel.h>
71 // #include <linux/sched.h>
72 // #include <linux/ptrace.h>
73 // #include <linux/slab.h>
74 // #include <linux/ctype.h>
75 // #include <linux/string.h>
76 //#include <linux/timer.h>
77 // #include <linux/interrupt.h>
78 // #include <linux/in.h>
79 // #include <linux/delay.h>
80 // #include <linux/skbuff.h>
81 // #include <asm/io.h>
82 // // #include <asm/bitops.h>
84 #include <linux/netdevice.h>
85 #include <linux/ethtool.h>
86 #include <linux/etherdevice.h>
87 // #include <linux/skbuff.h>
88 // #include <linux/if_arp.h>
89 // #include <linux/ioport.h>
95 // #include <hcfdef.h>
98 #include <wl_internal.h>
102 #include <wl_netdev.h>
106 #include <wl_profile.h>
107 #endif /* USE_PROFILE */
111 #endif /* BUS_PCMCIA */
118 /*******************************************************************************
120 ******************************************************************************/
122 extern dbg_info_t
*DbgInfo
;
127 #define MTU_MAX (HCF_MAX_MSG - ETH_HLEN - 8)
129 #define MTU_MAX (HCF_MAX_MSG - ETH_HLEN)
132 //static int mtu = MTU_MAX;
133 //MODULE_PARM(mtu, "i");
134 //MODULE_PARM_DESC(mtu, "MTU");
136 /*******************************************************************************
138 ******************************************************************************/
139 #define BLOCK_INPUT(buf, len) \
140 desc->buf_addr = buf; \
141 desc->BUF_SIZE = len; \
142 status = hcf_rcv_msg(&(lp->hcfCtx), desc, 0)
144 #define BLOCK_INPUT_DMA(buf, len) memcpy( buf, desc_next->buf_addr, pktlen )
146 /*******************************************************************************
147 * function prototypes
148 ******************************************************************************/
150 /*******************************************************************************
152 *******************************************************************************
156 * We never need to do anything when a "Wireless" device is "initialized"
157 * by the net software, because we only register already-found cards.
161 * dev - a pointer to the device's net_device structure
166 * errno value otherwise
168 ******************************************************************************/
169 int wl_init( struct net_device
*dev
)
171 // unsigned long flags;
172 // struct wl_private *lp = wl_priv(dev);
173 /*------------------------------------------------------------------------*/
175 DBG_FUNC( "wl_init" );
176 DBG_ENTER( DbgInfo
);
178 DBG_PARAM( DbgInfo
, "dev", "%s (0x%p)", dev
->name
, dev
);
180 /* Nothing to do, but grab the spinlock anyway just in case we ever need
182 // wl_lock( lp, &flags );
183 // wl_unlock( lp, &flags );
185 DBG_LEAVE( DbgInfo
);
188 /*============================================================================*/
190 /*******************************************************************************
192 *******************************************************************************
196 * Implement the SIOCSIFMAP interface.
200 * dev - a pointer to the device's net_device structure
201 * map - a pointer to the device's ifmap structure
208 ******************************************************************************/
209 int wl_config( struct net_device
*dev
, struct ifmap
*map
)
211 DBG_FUNC( "wl_config" );
212 DBG_ENTER( DbgInfo
);
214 DBG_PARAM( DbgInfo
, "dev", "%s (0x%p)", dev
->name
, dev
);
215 DBG_PARAM( DbgInfo
, "map", "0x%p", map
);
217 /* The only thing we care about here is a port change. Since this not needed,
218 ignore the request. */
219 DBG_TRACE(DbgInfo
, "%s: %s called.\n", dev
->name
, __func__
);
221 DBG_LEAVE( DbgInfo
);
224 /*============================================================================*/
226 /*******************************************************************************
228 *******************************************************************************
232 * Return the current device statistics.
236 * dev - a pointer to the device's net_device structure
240 * a pointer to a net_device_stats structure containing the network
243 ******************************************************************************/
244 struct net_device_stats
*wl_stats( struct net_device
*dev
)
250 struct net_device_stats
*pStats
;
251 struct wl_private
*lp
= wl_priv(dev
);
252 /*------------------------------------------------------------------------*/
254 //DBG_FUNC( "wl_stats" );
255 //DBG_ENTER( DbgInfo );
256 //DBG_PARAM( DbgInfo, "dev", "%s (0x%p)", dev->name, dev );
260 wl_lock( lp
, &flags
);
263 if( lp
->useRTS
== 1 ) {
264 wl_unlock( lp
, &flags
);
266 //DBG_LEAVE( DbgInfo );
271 /* Return the statistics for the appropriate device */
274 for( count
= 0; count
< NUM_WDS_PORTS
; count
++ ) {
275 if( dev
== lp
->wds_port
[count
].dev
) {
276 pStats
= &( lp
->wds_port
[count
].stats
);
282 /* If pStats is still NULL, then the device is not a WDS port */
283 if( pStats
== NULL
) {
284 pStats
= &( lp
->stats
);
287 wl_unlock( lp
, &flags
);
289 //DBG_LEAVE( DbgInfo );
293 /*============================================================================*/
295 /*******************************************************************************
297 *******************************************************************************
305 * dev - a pointer to the device's net_device structure
312 ******************************************************************************/
313 int wl_open(struct net_device
*dev
)
315 int status
= HCF_SUCCESS
;
316 struct wl_private
*lp
= wl_priv(dev
);
318 /*------------------------------------------------------------------------*/
320 DBG_FUNC( "wl_open" );
321 DBG_ENTER( DbgInfo
);
323 wl_lock( lp
, &flags
);
326 if( lp
->useRTS
== 1 ) {
327 DBG_TRACE( DbgInfo
, "Skipping device open, in RTS mode\n" );
328 wl_unlock( lp
, &flags
);
329 DBG_LEAVE( DbgInfo
);
338 if( lp
->portState
== WVLAN_PORT_STATE_DISABLED
) {
339 DBG_TRACE( DbgInfo
, "Enabling Port 0\n" );
340 status
= wl_enable( lp
);
342 if( status
!= HCF_SUCCESS
) {
343 DBG_TRACE( DbgInfo
, "Enable port 0 failed: 0x%x\n", status
);
347 // Holding the lock too long, make a gap to allow other processes
348 wl_unlock(lp
, &flags
);
349 wl_lock( lp
, &flags
);
351 if ( strlen( lp
->fw_image_filename
) ) {
352 DBG_TRACE( DbgInfo
, ";???? Kludgy way to force a download\n" );
353 status
= wl_go( lp
);
355 status
= wl_apply( lp
);
358 // Holding the lock too long, make a gap to allow other processes
359 wl_unlock(lp
, &flags
);
360 wl_lock( lp
, &flags
);
362 if( status
!= HCF_SUCCESS
) {
363 // Unsuccessful, try reset of the card to recover
364 status
= wl_reset( dev
);
367 // Holding the lock too long, make a gap to allow other processes
368 wl_unlock(lp
, &flags
);
369 wl_lock( lp
, &flags
);
371 if( status
== HCF_SUCCESS
) {
372 netif_carrier_on( dev
);
373 WL_WDS_NETIF_CARRIER_ON( lp
);
375 lp
->is_handling_int
= WL_HANDLING_INT
; // Start handling interrupts
378 netif_start_queue( dev
);
379 WL_WDS_NETIF_START_QUEUE( lp
);
381 wl_hcf_error( dev
, status
); /* Report the error */
382 netif_device_detach( dev
); /* Stop the device and queue */
385 wl_unlock( lp
, &flags
);
387 DBG_LEAVE( DbgInfo
);
390 /*============================================================================*/
392 /*******************************************************************************
394 *******************************************************************************
402 * dev - a pointer to the device's net_device structure
409 ******************************************************************************/
410 int wl_close( struct net_device
*dev
)
412 struct wl_private
*lp
= wl_priv(dev
);
414 /*------------------------------------------------------------------------*/
416 DBG_FUNC("wl_close");
418 DBG_PARAM(DbgInfo
, "dev", "%s (0x%p)", dev
->name
, dev
);
420 /* Mark the adapter as busy */
421 netif_stop_queue( dev
);
422 WL_WDS_NETIF_STOP_QUEUE( lp
);
424 netif_carrier_off( dev
);
425 WL_WDS_NETIF_CARRIER_OFF( lp
);
427 /* Shutdown the adapter:
428 Disable adapter interrupts
434 wl_lock( lp
, &flags
);
436 wl_act_int_off( lp
);
437 lp
->is_handling_int
= WL_NOT_HANDLING_INT
; // Stop handling interrupts
440 if( lp
->useRTS
== 1 ) {
441 DBG_TRACE( DbgInfo
, "Skipping device close, in RTS mode\n" );
442 wl_unlock( lp
, &flags
);
443 DBG_LEAVE( DbgInfo
);
448 /* Disable the ports */
451 wl_unlock( lp
, &flags
);
453 DBG_LEAVE( DbgInfo
);
456 /*============================================================================*/
458 static void wl_get_drvinfo(struct net_device
*dev
, struct ethtool_drvinfo
*info
)
460 strncpy(info
->driver
, DRIVER_NAME
, sizeof(info
->driver
) - 1);
461 strncpy(info
->version
, DRV_VERSION_STR
, sizeof(info
->version
) - 1);
462 // strncpy(info.fw_version, priv->fw_name,
463 // sizeof(info.fw_version) - 1);
465 if (dev
->dev
.parent
) {
466 dev_set_name(dev
->dev
.parent
, "%s", info
->bus_info
);
467 //strncpy(info->bus_info, dev->dev.parent->bus_id,
468 // sizeof(info->bus_info) - 1);
470 snprintf(info
->bus_info
, sizeof(info
->bus_info
) - 1,
472 // "PCMCIA 0x%lx", priv->hw.iobase);
476 static struct ethtool_ops wl_ethtool_ops
= {
477 .get_drvinfo
= wl_get_drvinfo
,
478 .get_link
= ethtool_op_get_link
,
482 /*******************************************************************************
484 *******************************************************************************
488 * The IOCTL handler for the device.
492 * dev - a pointer to the device's net_device struct.
493 * rq - a pointer to the IOCTL request buffer.
494 * cmd - the IOCTL command code.
499 * errno value otherwise
501 ******************************************************************************/
502 int wl_ioctl( struct net_device
*dev
, struct ifreq
*rq
, int cmd
)
504 struct wl_private
*lp
= wl_priv(dev
);
507 /*------------------------------------------------------------------------*/
509 DBG_FUNC( "wl_ioctl" );
511 DBG_PARAM(DbgInfo
, "dev", "%s (0x%p)", dev
->name
, dev
);
512 DBG_PARAM(DbgInfo
, "rq", "0x%p", rq
);
513 DBG_PARAM(DbgInfo
, "cmd", "0x%04x", cmd
);
515 wl_lock( lp
, &flags
);
517 wl_act_int_off( lp
);
520 if( lp
->useRTS
== 1 ) {
521 /* Handle any RTS IOCTL here */
522 if( cmd
== WL_IOCTL_RTS
) {
523 DBG_TRACE( DbgInfo
, "IOCTL: WL_IOCTL_RTS\n" );
524 ret
= wvlan_rts( (struct rtsreq
*)rq
, dev
->base_addr
);
526 DBG_TRACE( DbgInfo
, "IOCTL not supported in RTS mode: 0x%X\n", cmd
);
530 goto out_act_int_on_unlock
;
534 /* Only handle UIL IOCTL requests when the UIL has the system blocked. */
535 if( !(( lp
->flags
& WVLAN2_UIL_BUSY
) && ( cmd
!= WVLAN2_IOCTL_UIL
))) {
537 struct uilreq
*urq
= (struct uilreq
*)rq
;
541 // ================== Private IOCTLs (up to 16) ==================
543 case WVLAN2_IOCTL_UIL
:
544 DBG_TRACE( DbgInfo
, "IOCTL: WVLAN2_IOCTL_UIL\n" );
545 ret
= wvlan_uil( urq
, lp
);
550 DBG_TRACE(DbgInfo
, "IOCTL CODE NOT SUPPORTED: 0x%X\n", cmd
);
555 DBG_WARNING( DbgInfo
, "DEVICE IS BUSY, CANNOT PROCESS REQUEST\n" );
560 out_act_int_on_unlock
:
564 wl_unlock( lp
, &flags
);
566 DBG_LEAVE( DbgInfo
);
569 /*============================================================================*/
571 #ifdef CONFIG_NET_POLL_CONTROLLER
572 void wl_poll(struct net_device
*dev
)
574 struct wl_private
*lp
= wl_priv(dev
);
578 wl_lock( lp
, &flags
);
579 wl_isr(dev
->irq
, dev
, ®s
);
580 wl_unlock( lp
, &flags
);
584 /*******************************************************************************
586 *******************************************************************************
590 * The handler called when, for some reason, a Tx request is not completed.
594 * dev - a pointer to the device's net_device struct.
600 ******************************************************************************/
601 void wl_tx_timeout( struct net_device
*dev
)
607 struct wl_private
*lp
= wl_priv(dev
);
608 struct net_device_stats
*pStats
= NULL
;
609 /*------------------------------------------------------------------------*/
611 DBG_FUNC( "wl_tx_timeout" );
612 DBG_ENTER( DbgInfo
);
614 DBG_WARNING( DbgInfo
, "%s: Transmit timeout.\n", dev
->name
);
616 wl_lock( lp
, &flags
);
619 if( lp
->useRTS
== 1 ) {
620 DBG_TRACE( DbgInfo
, "Skipping tx_timeout handler, in RTS mode\n" );
621 wl_unlock( lp
, &flags
);
623 DBG_LEAVE( DbgInfo
);
628 /* Figure out which device (the "root" device or WDS port) this timeout
632 for( count
= 0; count
< NUM_WDS_PORTS
; count
++ ) {
633 if( dev
== lp
->wds_port
[count
].dev
) {
634 pStats
= &( lp
->wds_port
[count
].stats
);
636 /* Break the loop so that we can use the counter to access WDS
637 information in the private structure */
644 /* If pStats is still NULL, then the device is not a WDS port */
645 if( pStats
== NULL
) {
646 pStats
= &( lp
->stats
);
649 /* Accumulate the timeout error */
652 wl_unlock( lp
, &flags
);
654 DBG_LEAVE( DbgInfo
);
657 /*============================================================================*/
659 /*******************************************************************************
661 *******************************************************************************
665 * The routine which performs data transmits.
669 * lp - a pointer to the device's wl_private struct.
676 ******************************************************************************/
677 int wl_send( struct wl_private
*lp
)
682 WVLAN_LFRAME
*txF
= NULL
;
683 struct list_head
*element
;
685 /*------------------------------------------------------------------------*/
687 DBG_FUNC( "wl_send" );
690 DBG_ERROR( DbgInfo
, "Private adapter struct is NULL\n" );
693 if( lp
->dev
== NULL
) {
694 DBG_ERROR( DbgInfo
, "net_device struct in wl_private is NULL\n" );
698 /* Check for the availability of FIDs; if none are available, don't take any
699 frames off the txQ */
700 if( lp
->hcfCtx
.IFB_RscInd
== 0 ) {
704 /* Reclaim the TxQ Elements and place them back on the free queue */
705 if( !list_empty( &( lp
->txQ
[0] ))) {
706 element
= lp
->txQ
[0].next
;
708 txF
= (WVLAN_LFRAME
* )list_entry( element
, WVLAN_LFRAME
, node
);
710 lp
->txF
.skb
= txF
->frame
.skb
;
711 lp
->txF
.port
= txF
->frame
.port
;
713 txF
->frame
.skb
= NULL
;
716 list_del( &( txF
->node
));
717 list_add( element
, &( lp
->txFree
));
721 if( lp
->txQ_count
< TX_Q_LOW_WATER_MARK
) {
722 if( lp
->netif_queue_on
== FALSE
) {
723 DBG_TX( DbgInfo
, "Kickstarting Q: %d\n", lp
->txQ_count
);
724 netif_wake_queue( lp
->dev
);
725 WL_WDS_NETIF_WAKE_QUEUE( lp
);
726 lp
->netif_queue_on
= TRUE
;
732 if( lp
->txF
.skb
== NULL
) {
736 /* If the device has resources (FIDs) available, then Tx the packet */
737 /* Format the TxRequest and send it to the adapter */
738 len
= lp
->txF
.skb
->len
< ETH_ZLEN
? ETH_ZLEN
: lp
->txF
.skb
->len
;
740 desc
= &( lp
->desc_tx
);
741 desc
->buf_addr
= lp
->txF
.skb
->data
;
743 desc
->next_desc_addr
= NULL
;
745 status
= hcf_send_msg( &( lp
->hcfCtx
), desc
, lp
->txF
.port
);
747 if( status
== HCF_SUCCESS
) {
748 lp
->dev
->trans_start
= jiffies
;
750 DBG_TX( DbgInfo
, "Transmit...\n" );
752 if( lp
->txF
.port
== HCF_PORT_0
) {
753 lp
->stats
.tx_packets
++;
754 lp
->stats
.tx_bytes
+= lp
->txF
.skb
->len
;
760 lp
->wds_port
[(( lp
->txF
.port
>> 8 ) - 1)].stats
.tx_packets
++;
761 lp
->wds_port
[(( lp
->txF
.port
>> 8 ) - 1)].stats
.tx_bytes
+= lp
->txF
.skb
->len
;
766 /* Free the skb and perform queue cleanup, as the buffer was
767 transmitted successfully */
768 dev_kfree_skb( lp
->txF
.skb
);
776 /*============================================================================*/
778 /*******************************************************************************
780 *******************************************************************************
784 * The Tx handler function for the network layer.
788 * skb - a pointer to the sk_buff structure containing the data to transfer.
789 * dev - a pointer to the device's net_device structure.
796 ******************************************************************************/
797 int wl_tx( struct sk_buff
*skb
, struct net_device
*dev
, int port
)
800 struct wl_private
*lp
= wl_priv(dev
);
801 WVLAN_LFRAME
*txF
= NULL
;
802 struct list_head
*element
;
803 /*------------------------------------------------------------------------*/
807 /* Grab the spinlock */
808 wl_lock( lp
, &flags
);
810 if( lp
->flags
& WVLAN2_UIL_BUSY
) {
811 DBG_WARNING( DbgInfo
, "UIL has device blocked\n" );
812 /* Start dropping packets here??? */
813 wl_unlock( lp
, &flags
);
818 if( lp
->useRTS
== 1 ) {
819 DBG_PRINT( "RTS: we're getting a Tx...\n" );
820 wl_unlock( lp
, &flags
);
826 /* Get an element from the queue */
827 element
= lp
->txFree
.next
;
828 txF
= (WVLAN_LFRAME
*)list_entry( element
, WVLAN_LFRAME
, node
);
830 DBG_ERROR( DbgInfo
, "Problem with list_entry\n" );
831 wl_unlock( lp
, &flags
);
834 /* Fill out the frame */
835 txF
->frame
.skb
= skb
;
836 txF
->frame
.port
= port
;
837 /* Move the frame to the txQ */
838 /* NOTE: Here's where we would do priority queueing */
839 list_del( &( txF
->node
));
840 list_add( &( txF
->node
), &( lp
->txQ
[0] ));
843 if( lp
->txQ_count
>= DEFAULT_NUM_TX_FRAMES
) {
844 DBG_TX( DbgInfo
, "Q Full: %d\n", lp
->txQ_count
);
845 if( lp
->netif_queue_on
== TRUE
) {
846 netif_stop_queue( lp
->dev
);
847 WL_WDS_NETIF_STOP_QUEUE( lp
);
848 lp
->netif_queue_on
= FALSE
;
852 wl_act_int_off( lp
); /* Disable Interrupts */
854 /* Send the data to the hardware using the appropriate method */
857 wl_send_dma( lp
, skb
, port
);
864 /* Re-enable Interrupts, release the spinlock and return */
866 wl_unlock( lp
, &flags
);
869 /*============================================================================*/
871 /*******************************************************************************
873 *******************************************************************************
877 * The routine which performs data reception.
881 * dev - a pointer to the device's net_device structure.
888 ******************************************************************************/
889 int wl_rx(struct net_device
*dev
)
893 struct wl_private
*lp
= wl_priv(dev
);
898 /*------------------------------------------------------------------------*/
901 DBG_PARAM(DbgInfo
, "dev", "%s (0x%p)", dev
->name
, dev
);
903 if(!( lp
->flags
& WVLAN2_UIL_BUSY
)) {
906 if( lp
->useRTS
== 1 ) {
907 DBG_PRINT( "RTS: We're getting an Rx...\n" );
912 /* Read the HFS_STAT register from the lookahead buffer */
913 hfs_stat
= (hcf_16
)(( lp
->lookAheadBuf
[HFS_STAT
] ) |
914 ( lp
->lookAheadBuf
[HFS_STAT
+ 1] << 8 ));
916 /* Make sure the frame isn't bad */
917 if(( hfs_stat
& HFS_STAT_ERR
) != HCF_SUCCESS
) {
918 DBG_WARNING( DbgInfo
, "HFS_STAT_ERROR (0x%x) in Rx Packet\n",
919 lp
->lookAheadBuf
[HFS_STAT
] );
923 /* Determine what port this packet is for */
924 port
= ( hfs_stat
>> 8 ) & 0x0007;
925 DBG_RX( DbgInfo
, "Rx frame for port %d\n", port
);
927 pktlen
= lp
->hcfCtx
.IFB_RxLen
;
929 skb
= ALLOC_SKB(pktlen
);
931 /* Set the netdev based on the port */
940 skb
->dev
= lp
->wds_port
[port
-1].dev
;
950 desc
= &( lp
->desc_rx
);
952 desc
->next_desc_addr
= NULL
;
955 #define BLOCK_INPUT(buf, len) \
956 desc->buf_addr = buf; \
957 desc->BUF_SIZE = len; \
958 status = hcf_rcv_msg(&(lp->hcfCtx), desc, 0)
961 GET_PACKET( skb
->dev
, skb
, pktlen
);
963 if( status
== HCF_SUCCESS
) {
967 lp
->stats
.rx_packets
++;
968 lp
->stats
.rx_bytes
+= pktlen
;
973 lp
->wds_port
[port
-1].stats
.rx_packets
++;
974 lp
->wds_port
[port
-1].stats
.rx_bytes
+= pktlen
;
978 dev
->last_rx
= jiffies
;
982 if( lp
->spydata
.spy_number
> 0 ) {
983 char *srcaddr
= skb
->mac
.raw
+ MAC_ADDR_SIZE
;
985 wl_spy_gather( dev
, srcaddr
);
987 #endif /* WIRELESS_SPY */
988 #endif /* WIRELESS_EXT */
990 DBG_ERROR( DbgInfo
, "Rx request to card FAILED\n" );
993 lp
->stats
.rx_dropped
++;
998 lp
->wds_port
[port
-1].stats
.rx_dropped
++;
1000 #endif /* USE_WDS */
1002 dev_kfree_skb( skb
);
1005 DBG_ERROR( DbgInfo
, "Could not alloc skb\n" );
1008 lp
->stats
.rx_dropped
++;
1013 lp
->wds_port
[port
-1].stats
.rx_dropped
++;
1015 #endif /* USE_WDS */
1022 /*============================================================================*/
1024 /*******************************************************************************
1026 *******************************************************************************
1030 * Function to handle multicast packets
1034 * dev - a pointer to the device's net_device structure.
1040 ******************************************************************************/
1041 #ifdef NEW_MULTICAST
1043 void wl_multicast( struct net_device
*dev
)
1045 #if 1 //;? (HCF_TYPE) & HCF_TYPE_STA //;?should we return an error status in AP mode
1046 //;?seems reasonable that even an AP-only driver could afford this small additional footprint
1049 struct netdev_hw_addr
*ha
;
1050 struct wl_private
*lp
= wl_priv(dev
);
1051 unsigned long flags
;
1052 /*------------------------------------------------------------------------*/
1054 DBG_FUNC( "wl_multicast" );
1055 DBG_ENTER( DbgInfo
);
1056 DBG_PARAM( DbgInfo
, "dev", "%s (0x%p)", dev
->name
, dev
);
1058 if( !wl_adapter_is_open( dev
)) {
1059 DBG_LEAVE( DbgInfo
);
1064 if( DBG_FLAGS( DbgInfo
) & DBG_PARAM_ON
) {
1065 DBG_PRINT(" flags: %s%s%s\n",
1066 ( dev
->flags
& IFF_PROMISC
) ? "Promiscuous " : "",
1067 ( dev
->flags
& IFF_MULTICAST
) ? "Multicast " : "",
1068 ( dev
->flags
& IFF_ALLMULTI
) ? "All-Multicast" : "" );
1070 DBG_PRINT( " mc_count: %d\n", netdev_mc_count(dev
));
1072 netdev_for_each_mc_addr(ha
, dev
)
1073 DBG_PRINT(" %pM (%d)\n", ha
->addr
, dev
->addr_len
);
1077 if(!( lp
->flags
& WVLAN2_UIL_BUSY
)) {
1080 if( lp
->useRTS
== 1 ) {
1081 DBG_TRACE( DbgInfo
, "Skipping multicast, in RTS mode\n" );
1083 DBG_LEAVE( DbgInfo
);
1086 #endif /* USE_RTS */
1088 wl_lock( lp
, &flags
);
1089 wl_act_int_off( lp
);
1091 if ( CNV_INT_TO_LITTLE( lp
->hcfCtx
.IFB_FWIdentity
.comp_id
) == COMP_ID_FW_STA
) {
1092 if( dev
->flags
& IFF_PROMISC
) {
1093 /* Enable promiscuous mode */
1094 lp
->ltvRecord
.len
= 2;
1095 lp
->ltvRecord
.typ
= CFG_PROMISCUOUS_MODE
;
1096 lp
->ltvRecord
.u
.u16
[0] = CNV_INT_TO_LITTLE( 1 );
1097 DBG_PRINT( "Enabling Promiscuous mode (IFF_PROMISC)\n" );
1098 hcf_put_info( &( lp
->hcfCtx
), (LTVP
)&( lp
->ltvRecord
));
1100 else if ((netdev_mc_count(dev
) > HCF_MAX_MULTICAST
) ||
1101 ( dev
->flags
& IFF_ALLMULTI
)) {
1102 /* Shutting off this filter will enable all multicast frames to
1103 be sent up from the device; however, this is a static RID, so
1104 a call to wl_apply() is needed */
1105 lp
->ltvRecord
.len
= 2;
1106 lp
->ltvRecord
.typ
= CFG_CNF_RX_ALL_GROUP_ADDR
;
1107 lp
->ltvRecord
.u
.u16
[0] = CNV_INT_TO_LITTLE( 0 );
1108 DBG_PRINT( "Enabling all multicast mode (IFF_ALLMULTI)\n" );
1109 hcf_put_info( &( lp
->hcfCtx
), (LTVP
)&( lp
->ltvRecord
));
1112 else if (!netdev_mc_empty(dev
)) {
1113 /* Set the multicast addresses */
1114 lp
->ltvRecord
.len
= ( netdev_mc_count(dev
) * 3 ) + 1;
1115 lp
->ltvRecord
.typ
= CFG_GROUP_ADDR
;
1118 netdev_for_each_mc_addr(ha
, dev
)
1119 memcpy(&(lp
->ltvRecord
.u
.u8
[x
++ * ETH_ALEN
]),
1120 ha
->addr
, ETH_ALEN
);
1121 DBG_PRINT( "Setting multicast list\n" );
1122 hcf_put_info( &( lp
->hcfCtx
), (LTVP
)&( lp
->ltvRecord
));
1124 /* Disable promiscuous mode */
1125 lp
->ltvRecord
.len
= 2;
1126 lp
->ltvRecord
.typ
= CFG_PROMISCUOUS_MODE
;
1127 lp
->ltvRecord
.u
.u16
[0] = CNV_INT_TO_LITTLE( 0 );
1128 DBG_PRINT( "Disabling Promiscuous mode\n" );
1129 hcf_put_info( &( lp
->hcfCtx
), (LTVP
)&( lp
->ltvRecord
));
1131 /* Disable multicast mode */
1132 lp
->ltvRecord
.len
= 2;
1133 lp
->ltvRecord
.typ
= CFG_GROUP_ADDR
;
1134 DBG_PRINT( "Disabling Multicast mode\n" );
1135 hcf_put_info( &( lp
->hcfCtx
), (LTVP
)&( lp
->ltvRecord
));
1137 /* Turning on this filter will prevent all multicast frames from
1138 being sent up from the device; however, this is a static RID,
1139 so a call to wl_apply() is needed */
1140 lp
->ltvRecord
.len
= 2;
1141 lp
->ltvRecord
.typ
= CFG_CNF_RX_ALL_GROUP_ADDR
;
1142 lp
->ltvRecord
.u
.u16
[0] = CNV_INT_TO_LITTLE( 1 );
1143 DBG_PRINT( "Disabling all multicast mode (IFF_ALLMULTI)\n" );
1144 hcf_put_info( &( lp
->hcfCtx
), (LTVP
)&( lp
->ltvRecord
));
1148 wl_act_int_on( lp
);
1149 wl_unlock( lp
, &flags
);
1151 DBG_LEAVE( DbgInfo
);
1152 #endif /* HCF_STA */
1154 /*============================================================================*/
1156 #else /* NEW_MULTICAST */
1158 void wl_multicast( struct net_device
*dev
, int num_addrs
, void *addrs
)
1160 DBG_FUNC( "wl_multicast");
1163 DBG_PARAM( DbgInfo
, "dev", "%s (0x%p)", dev
->name
, dev
);
1164 DBG_PARAM( DbgInfo
, "num_addrs", "%d", num_addrs
);
1165 DBG_PARAM( DbgInfo
, "addrs", "0x%p", addrs
);
1167 #error Obsolete set multicast interface!
1169 DBG_LEAVE( DbgInfo
);
1171 /*============================================================================*/
1173 #endif /* NEW_MULTICAST */
1175 static const struct net_device_ops wl_netdev_ops
=
1177 .ndo_start_xmit
= &wl_tx_port0
,
1179 .ndo_set_config
= &wl_config
,
1180 .ndo_get_stats
= &wl_stats
,
1181 .ndo_set_rx_mode
= &wl_multicast
,
1183 .ndo_init
= &wl_insert
,
1184 .ndo_open
= &wl_adapter_open
,
1185 .ndo_stop
= &wl_adapter_close
,
1186 .ndo_do_ioctl
= &wl_ioctl
,
1188 .ndo_tx_timeout
= &wl_tx_timeout
,
1190 #ifdef CONFIG_NET_POLL_CONTROLLER
1191 .ndo_poll_controller
= wl_poll
,
1195 /*******************************************************************************
1197 *******************************************************************************
1201 * Create instances of net_device and wl_private for the new adapter
1202 * and register the device's entry points in the net_device structure.
1210 * a pointer to an allocated and initialized net_device struct for this
1213 ******************************************************************************/
1214 struct net_device
* wl_device_alloc( void )
1216 struct net_device
*dev
= NULL
;
1217 struct wl_private
*lp
= NULL
;
1218 /*------------------------------------------------------------------------*/
1220 DBG_FUNC( "wl_device_alloc" );
1221 DBG_ENTER( DbgInfo
);
1223 /* Alloc a net_device struct */
1224 dev
= alloc_etherdev(sizeof(struct wl_private
));
1228 /* Initialize the 'next' pointer in the struct. Currently only used for PCI,
1229 but do it here just in case it's used for other buses in the future */
1234 if( dev
->mtu
> MTU_MAX
)
1236 DBG_WARNING( DbgInfo
, "%s: MTU set too high, limiting to %d.\n",
1237 dev
->name
, MTU_MAX
);
1241 /* Setup the function table in the device structure. */
1243 dev
->wireless_handlers
= (struct iw_handler_def
*)&wl_iw_handler_def
;
1244 lp
->wireless_data
.spy_data
= &lp
->spy_data
;
1245 dev
->wireless_data
= &lp
->wireless_data
;
1247 dev
->netdev_ops
= &wl_netdev_ops
;
1249 dev
->watchdog_timeo
= TX_TIMEOUT
;
1251 dev
->ethtool_ops
= &wl_ethtool_ops
;
1253 netif_stop_queue( dev
);
1255 /* Allocate virutal devices for WDS support if needed */
1256 WL_WDS_DEVICE_ALLOC( lp
);
1258 DBG_LEAVE( DbgInfo
);
1260 } // wl_device_alloc
1261 /*============================================================================*/
1263 /*******************************************************************************
1264 * wl_device_dealloc()
1265 *******************************************************************************
1269 * Free instances of net_device and wl_private strcutres for an adapter
1270 * and perform basic cleanup.
1274 * dev - a pointer to the device's net_device structure.
1280 ******************************************************************************/
1281 void wl_device_dealloc( struct net_device
*dev
)
1283 // struct wl_private *lp = wl_priv(dev);
1284 /*------------------------------------------------------------------------*/
1286 DBG_FUNC( "wl_device_dealloc" );
1287 DBG_ENTER( DbgInfo
);
1289 /* Dealloc the WDS ports */
1290 WL_WDS_DEVICE_DEALLOC( lp
);
1294 DBG_LEAVE( DbgInfo
);
1296 } // wl_device_dealloc
1297 /*============================================================================*/
1299 /*******************************************************************************
1301 *******************************************************************************
1305 * The handler routine for Tx over HCF_PORT_0.
1309 * skb - a pointer to the sk_buff to transmit.
1310 * dev - a pointer to a net_device structure representing HCF_PORT_0.
1316 ******************************************************************************/
1317 int wl_tx_port0( struct sk_buff
*skb
, struct net_device
*dev
)
1319 DBG_TX( DbgInfo
, "Tx on Port 0\n" );
1321 return wl_tx( skb
, dev
, HCF_PORT_0
);
1323 return wl_tx_dma( skb
, dev
, HCF_PORT_0
);
1326 /*============================================================================*/
1330 /*******************************************************************************
1332 *******************************************************************************
1336 * The handler routine for Tx over HCF_PORT_1.
1340 * skb - a pointer to the sk_buff to transmit.
1341 * dev - a pointer to a net_device structure representing HCF_PORT_1.
1347 ******************************************************************************/
1348 int wl_tx_port1( struct sk_buff
*skb
, struct net_device
*dev
)
1350 DBG_TX( DbgInfo
, "Tx on Port 1\n" );
1351 return wl_tx( skb
, dev
, HCF_PORT_1
);
1353 /*============================================================================*/
1355 /*******************************************************************************
1357 *******************************************************************************
1361 * The handler routine for Tx over HCF_PORT_2.
1365 * skb - a pointer to the sk_buff to transmit.
1366 * dev - a pointer to a net_device structure representing HCF_PORT_2.
1372 ******************************************************************************/
1373 int wl_tx_port2( struct sk_buff
*skb
, struct net_device
*dev
)
1375 DBG_TX( DbgInfo
, "Tx on Port 2\n" );
1376 return wl_tx( skb
, dev
, HCF_PORT_2
);
1378 /*============================================================================*/
1380 /*******************************************************************************
1382 *******************************************************************************
1386 * The handler routine for Tx over HCF_PORT_3.
1390 * skb - a pointer to the sk_buff to transmit.
1391 * dev - a pointer to a net_device structure representing HCF_PORT_3.
1397 ******************************************************************************/
1398 int wl_tx_port3( struct sk_buff
*skb
, struct net_device
*dev
)
1400 DBG_TX( DbgInfo
, "Tx on Port 3\n" );
1401 return wl_tx( skb
, dev
, HCF_PORT_3
);
1403 /*============================================================================*/
1405 /*******************************************************************************
1407 *******************************************************************************
1411 * The handler routine for Tx over HCF_PORT_4.
1415 * skb - a pointer to the sk_buff to transmit.
1416 * dev - a pointer to a net_device structure representing HCF_PORT_4.
1422 ******************************************************************************/
1423 int wl_tx_port4( struct sk_buff
*skb
, struct net_device
*dev
)
1425 DBG_TX( DbgInfo
, "Tx on Port 4\n" );
1426 return wl_tx( skb
, dev
, HCF_PORT_4
);
1428 /*============================================================================*/
1430 /*******************************************************************************
1432 *******************************************************************************
1436 * The handler routine for Tx over HCF_PORT_5.
1440 * skb - a pointer to the sk_buff to transmit.
1441 * dev - a pointer to a net_device structure representing HCF_PORT_5.
1447 ******************************************************************************/
1448 int wl_tx_port5( struct sk_buff
*skb
, struct net_device
*dev
)
1450 DBG_TX( DbgInfo
, "Tx on Port 5\n" );
1451 return wl_tx( skb
, dev
, HCF_PORT_5
);
1453 /*============================================================================*/
1455 /*******************************************************************************
1457 *******************************************************************************
1461 * The handler routine for Tx over HCF_PORT_6.
1465 * skb - a pointer to the sk_buff to transmit.
1466 * dev - a pointer to a net_device structure representing HCF_PORT_6.
1472 ******************************************************************************/
1473 int wl_tx_port6( struct sk_buff
*skb
, struct net_device
*dev
)
1475 DBG_TX( DbgInfo
, "Tx on Port 6\n" );
1476 return wl_tx( skb
, dev
, HCF_PORT_6
);
1478 /*============================================================================*/
1480 /*******************************************************************************
1481 * wl_wds_device_alloc()
1482 *******************************************************************************
1486 * Create instances of net_device to represent the WDS ports, and register
1487 * the device's entry points in the net_device structure.
1491 * lp - a pointer to the device's private adapter structure
1495 * N/A, but will place pointers to the allocated and initialized net_device
1496 * structs in the private adapter structure.
1498 ******************************************************************************/
1499 void wl_wds_device_alloc( struct wl_private
*lp
)
1502 /*------------------------------------------------------------------------*/
1504 DBG_FUNC( "wl_wds_device_alloc" );
1505 DBG_ENTER( DbgInfo
);
1507 /* WDS support requires additional net_device structs to be allocated,
1508 so that user space apps can use these virtual devices to specify the
1509 port on which to Tx/Rx */
1510 for( count
= 0; count
< NUM_WDS_PORTS
; count
++ ) {
1511 struct net_device
*dev_wds
= NULL
;
1513 dev_wds
= kzalloc(sizeof(struct net_device
), GFP_KERNEL
);
1519 ether_setup( dev_wds
);
1521 lp
->wds_port
[count
].dev
= dev_wds
;
1523 /* Re-use wl_init for all the devices, as it currently does nothing, but
1524 is required. Re-use the stats/tx_timeout handler for all as well; the
1525 WDS port which is requesting these operations can be determined by
1526 the net_device pointer. Set the private member of all devices to point
1527 to the same net_device struct; that way, all information gets
1528 funnelled through the one "real" net_device. Name the WDS ports
1530 lp
->wds_port
[count
].dev
->init
= &wl_init
;
1531 lp
->wds_port
[count
].dev
->get_stats
= &wl_stats
;
1532 lp
->wds_port
[count
].dev
->tx_timeout
= &wl_tx_timeout
;
1533 lp
->wds_port
[count
].dev
->watchdog_timeo
= TX_TIMEOUT
;
1534 lp
->wds_port
[count
].dev
->priv
= lp
;
1536 sprintf( lp
->wds_port
[count
].dev
->name
, "wds%d", count
);
1539 /* Register the Tx handlers */
1540 lp
->wds_port
[0].dev
->hard_start_xmit
= &wl_tx_port1
;
1541 lp
->wds_port
[1].dev
->hard_start_xmit
= &wl_tx_port2
;
1542 lp
->wds_port
[2].dev
->hard_start_xmit
= &wl_tx_port3
;
1543 lp
->wds_port
[3].dev
->hard_start_xmit
= &wl_tx_port4
;
1544 lp
->wds_port
[4].dev
->hard_start_xmit
= &wl_tx_port5
;
1545 lp
->wds_port
[5].dev
->hard_start_xmit
= &wl_tx_port6
;
1547 WL_WDS_NETIF_STOP_QUEUE( lp
);
1549 DBG_LEAVE( DbgInfo
);
1551 } // wl_wds_device_alloc
1552 /*============================================================================*/
1554 /*******************************************************************************
1555 * wl_wds_device_dealloc()
1556 *******************************************************************************
1560 * Free instances of net_device structures used to support WDS.
1564 * lp - a pointer to the device's private adapter structure
1570 ******************************************************************************/
1571 void wl_wds_device_dealloc( struct wl_private
*lp
)
1574 /*------------------------------------------------------------------------*/
1576 DBG_FUNC( "wl_wds_device_dealloc" );
1577 DBG_ENTER( DbgInfo
);
1579 for( count
= 0; count
< NUM_WDS_PORTS
; count
++ ) {
1580 struct net_device
*dev_wds
= NULL
;
1582 dev_wds
= lp
->wds_port
[count
].dev
;
1584 if( dev_wds
!= NULL
) {
1585 if( dev_wds
->flags
& IFF_UP
) {
1586 dev_close( dev_wds
);
1587 dev_wds
->flags
&= ~( IFF_UP
| IFF_RUNNING
);
1590 free_netdev(dev_wds
);
1591 lp
->wds_port
[count
].dev
= NULL
;
1595 DBG_LEAVE( DbgInfo
);
1597 } // wl_wds_device_dealloc
1598 /*============================================================================*/
1600 /*******************************************************************************
1601 * wl_wds_netif_start_queue()
1602 *******************************************************************************
1606 * Used to start the netif queues of all the "virtual" network devices
1607 * which repesent the WDS ports.
1611 * lp - a pointer to the device's private adapter structure
1617 ******************************************************************************/
1618 void wl_wds_netif_start_queue( struct wl_private
*lp
)
1621 /*------------------------------------------------------------------------*/
1624 for( count
= 0; count
< NUM_WDS_PORTS
; count
++ ) {
1625 if( lp
->wds_port
[count
].is_registered
&&
1626 lp
->wds_port
[count
].netif_queue_on
== FALSE
) {
1627 netif_start_queue( lp
->wds_port
[count
].dev
);
1628 lp
->wds_port
[count
].netif_queue_on
= TRUE
;
1634 } // wl_wds_netif_start_queue
1635 /*============================================================================*/
1637 /*******************************************************************************
1638 * wl_wds_netif_stop_queue()
1639 *******************************************************************************
1643 * Used to stop the netif queues of all the "virtual" network devices
1644 * which repesent the WDS ports.
1648 * lp - a pointer to the device's private adapter structure
1654 ******************************************************************************/
1655 void wl_wds_netif_stop_queue( struct wl_private
*lp
)
1658 /*------------------------------------------------------------------------*/
1661 for( count
= 0; count
< NUM_WDS_PORTS
; count
++ ) {
1662 if( lp
->wds_port
[count
].is_registered
&&
1663 lp
->wds_port
[count
].netif_queue_on
== TRUE
) {
1664 netif_stop_queue( lp
->wds_port
[count
].dev
);
1665 lp
->wds_port
[count
].netif_queue_on
= FALSE
;
1671 } // wl_wds_netif_stop_queue
1672 /*============================================================================*/
1674 /*******************************************************************************
1675 * wl_wds_netif_wake_queue()
1676 *******************************************************************************
1680 * Used to wake the netif queues of all the "virtual" network devices
1681 * which repesent the WDS ports.
1685 * lp - a pointer to the device's private adapter structure
1691 ******************************************************************************/
1692 void wl_wds_netif_wake_queue( struct wl_private
*lp
)
1695 /*------------------------------------------------------------------------*/
1698 for( count
= 0; count
< NUM_WDS_PORTS
; count
++ ) {
1699 if( lp
->wds_port
[count
].is_registered
&&
1700 lp
->wds_port
[count
].netif_queue_on
== FALSE
) {
1701 netif_wake_queue( lp
->wds_port
[count
].dev
);
1702 lp
->wds_port
[count
].netif_queue_on
= TRUE
;
1708 } // wl_wds_netif_wake_queue
1709 /*============================================================================*/
1711 /*******************************************************************************
1712 * wl_wds_netif_carrier_on()
1713 *******************************************************************************
1717 * Used to signal the network layer that carrier is present on all of the
1718 * "virtual" network devices which repesent the WDS ports.
1722 * lp - a pointer to the device's private adapter structure
1728 ******************************************************************************/
1729 void wl_wds_netif_carrier_on( struct wl_private
*lp
)
1732 /*------------------------------------------------------------------------*/
1735 for( count
= 0; count
< NUM_WDS_PORTS
; count
++ ) {
1736 if( lp
->wds_port
[count
].is_registered
) {
1737 netif_carrier_on( lp
->wds_port
[count
].dev
);
1743 } // wl_wds_netif_carrier_on
1744 /*============================================================================*/
1746 /*******************************************************************************
1747 * wl_wds_netif_carrier_off()
1748 *******************************************************************************
1752 * Used to signal the network layer that carrier is NOT present on all of
1753 * the "virtual" network devices which repesent the WDS ports.
1757 * lp - a pointer to the device's private adapter structure
1763 ******************************************************************************/
1764 void wl_wds_netif_carrier_off( struct wl_private
*lp
)
1767 /*------------------------------------------------------------------------*/
1770 for( count
= 0; count
< NUM_WDS_PORTS
; count
++ ) {
1771 if( lp
->wds_port
[count
].is_registered
) {
1772 netif_carrier_off( lp
->wds_port
[count
].dev
);
1778 } // wl_wds_netif_carrier_off
1779 /*============================================================================*/
1781 #endif /* USE_WDS */
1784 /*******************************************************************************
1786 *******************************************************************************
1790 * The routine which performs data transmits when using busmaster DMA.
1794 * lp - a pointer to the device's wl_private struct.
1795 * skb - a pointer to the network layer's data buffer.
1796 * port - the Hermes port on which to transmit.
1803 ******************************************************************************/
1804 int wl_send_dma( struct wl_private
*lp
, struct sk_buff
*skb
, int port
)
1807 DESC_STRCT
*desc
= NULL
;
1808 DESC_STRCT
*desc_next
= NULL
;
1809 /*------------------------------------------------------------------------*/
1811 DBG_FUNC( "wl_send_dma" );
1815 DBG_ERROR( DbgInfo
, "Private adapter struct is NULL\n" );
1819 if( lp
->dev
== NULL
)
1821 DBG_ERROR( DbgInfo
, "net_device struct in wl_private is NULL\n" );
1825 /* AGAIN, ALL THE QUEUEING DONE HERE IN I/O MODE IS NOT PERFORMED */
1829 DBG_WARNING (DbgInfo
, "Nothing to send.\n");
1835 /* Get a free descriptor */
1836 desc
= wl_pci_dma_get_tx_packet( lp
);
1840 if( lp
->netif_queue_on
== TRUE
) {
1841 netif_stop_queue( lp
->dev
);
1842 WL_WDS_NETIF_STOP_QUEUE( lp
);
1843 lp
->netif_queue_on
= FALSE
;
1845 dev_kfree_skb( skb
);
1850 SET_BUF_CNT( desc
, /*HCF_DMA_FD_CNT*/HFS_ADDR_DEST
);
1851 SET_BUF_SIZE( desc
, HCF_DMA_TX_BUF1_SIZE
);
1853 desc_next
= desc
->next_desc_addr
;
1855 if( desc_next
->buf_addr
== NULL
)
1857 DBG_ERROR( DbgInfo
, "DMA descriptor buf_addr is NULL\n" );
1861 /* Copy the payload into the DMA packet */
1862 memcpy( desc_next
->buf_addr
, skb
->data
, len
);
1864 SET_BUF_CNT( desc_next
, len
);
1865 SET_BUF_SIZE( desc_next
, HCF_MAX_PACKET_SIZE
);
1867 hcf_dma_tx_put( &( lp
->hcfCtx
), desc
, 0 );
1869 /* Free the skb and perform queue cleanup, as the buffer was
1870 transmitted successfully */
1871 dev_kfree_skb( skb
);
1875 /*============================================================================*/
1877 /*******************************************************************************
1879 *******************************************************************************
1883 * The routine which performs data reception when using busmaster DMA.
1887 * dev - a pointer to the device's net_device structure.
1894 ******************************************************************************/
1895 int wl_rx_dma( struct net_device
*dev
)
1900 struct sk_buff
*skb
;
1901 struct wl_private
*lp
= NULL
;
1902 DESC_STRCT
*desc
, *desc_next
;
1903 //CFG_MB_INFO_RANGE2_STRCT x;
1904 /*------------------------------------------------------------------------*/
1907 DBG_PARAM(DbgInfo
, "dev", "%s (0x%p)", dev
->name
, dev
);
1909 if((( lp
= dev
->priv
) != NULL
) &&
1910 !( lp
->flags
& WVLAN2_UIL_BUSY
)) {
1913 if( lp
->useRTS
== 1 ) {
1914 DBG_PRINT( "RTS: We're getting an Rx...\n" );
1917 #endif /* USE_RTS */
1919 //if( lp->dma.status == 0 )
1921 desc
= hcf_dma_rx_get( &( lp
->hcfCtx
));
1925 /* Check and see if we rcvd. a WMP frame */
1927 if((( *(hcf_8 *)&desc->buf_addr[HFS_STAT] ) &
1928 ( HFS_STAT_MSG_TYPE | HFS_STAT_ERR )) == HFS_STAT_WMP_MSG )
1930 DBG_TRACE( DbgInfo, "Got a WMP frame\n" );
1932 x.len = sizeof( CFG_MB_INFO_RANGE2_STRCT ) / sizeof( hcf_16 );
1933 x.typ = CFG_MB_INFO;
1934 x.base_typ = CFG_WMP;
1936 x.frag_buf[0].frag_len = GET_BUF_CNT( descp ) / sizeof( hcf_16 );
1937 x.frag_buf[0].frag_addr = (hcf_8 *) descp->buf_addr ;
1938 x.frag_buf[1].frag_len = ( GET_BUF_CNT( descp->next_desc_addr ) + 1 ) / sizeof( hcf_16 );
1939 x.frag_buf[1].frag_addr = (hcf_8 *) descp->next_desc_addr->buf_addr ;
1941 hcf_put_info( &( lp->hcfCtx ), (LTVP)&x );
1945 desc_next
= desc
->next_desc_addr
;
1947 /* Make sure the buffer isn't empty */
1948 if( GET_BUF_CNT( desc
) == 0 ) {
1949 DBG_WARNING( DbgInfo
, "Buffer is empty!\n" );
1951 /* Give the descriptor back to the HCF */
1952 hcf_dma_rx_put( &( lp
->hcfCtx
), desc
);
1956 /* Read the HFS_STAT register from the lookahead buffer */
1957 hfs_stat
= (hcf_16
)( desc
->buf_addr
[HFS_STAT
/2] );
1959 /* Make sure the frame isn't bad */
1960 if(( hfs_stat
& HFS_STAT_ERR
) != HCF_SUCCESS
)
1962 DBG_WARNING( DbgInfo
, "HFS_STAT_ERROR (0x%x) in Rx Packet\n",
1963 desc
->buf_addr
[HFS_STAT
/2] );
1965 /* Give the descriptor back to the HCF */
1966 hcf_dma_rx_put( &( lp
->hcfCtx
), desc
);
1970 /* Determine what port this packet is for */
1971 port
= ( hfs_stat
>> 8 ) & 0x0007;
1972 DBG_RX( DbgInfo
, "Rx frame for port %d\n", port
);
1974 pktlen
= GET_BUF_CNT(desc_next
);
1976 skb
= ALLOC_SKB(pktlen
);
1986 skb
->dev
= lp
->wds_port
[port
-1].dev
;
1988 #endif /* USE_WDS */
1996 GET_PACKET_DMA( skb
->dev
, skb
, pktlen
);
1998 /* Give the descriptor back to the HCF */
1999 hcf_dma_rx_put( &( lp
->hcfCtx
), desc
);
2004 lp
->stats
.rx_packets
++;
2005 lp
->stats
.rx_bytes
+= pktlen
;
2010 lp
->wds_port
[port
-1].stats
.rx_packets
++;
2011 lp
->wds_port
[port
-1].stats
.rx_bytes
+= pktlen
;
2013 #endif /* USE_WDS */
2015 dev
->last_rx
= jiffies
;
2018 DBG_ERROR( DbgInfo
, "Could not alloc skb\n" );
2022 lp
->stats
.rx_dropped
++;
2027 lp
->wds_port
[port
-1].stats
.rx_dropped
++;
2029 #endif /* USE_WDS */
2038 /*============================================================================*/
2039 #endif // ENABLE_DMA