1 /*********************************************************************
3 * Filename: netwave_cs.c
5 * Description: Netwave AirSurfer Wireless LAN PC Card driver
6 * Status: Experimental.
7 * Authors: John Markus Bjørndalen <johnm@cs.uit.no>
8 * Dag Brattli <dagb@cs.uit.no>
9 * David Hinds <dahinds@users.sourceforge.net>
10 * Created at: A long time ago!
11 * Modified at: Mon Nov 10 11:54:37 1997
12 * Modified by: Dag Brattli <dagb@cs.uit.no>
14 * Copyright (c) 1997 University of Tromsø, Norway
18 * 08-Nov-97 15:14:47 John Markus Bjørndalen <johnm@cs.uit.no>
19 * - Fixed some bugs in netwave_rx and cleaned it up a bit.
20 * (One of the bugs would have destroyed packets when receiving
21 * multiple packets per interrupt).
22 * - Cleaned up parts of newave_hw_xmit.
23 * - A few general cleanups.
24 * 24-Oct-97 13:17:36 Dag Brattli <dagb@cs.uit.no>
25 * - Fixed netwave_rx receive function (got updated docs)
27 * - Changed name from xircnw to netwave, take a look at
28 * http://www.netwave-wireless.com
29 * - Some reorganizing of the code
30 * - Removed possible race condition between interrupt handler and transmit
32 * - Started to add wireless extensions, but still needs some coding
33 * - Added watchdog for better handling of transmission timeouts
34 * (hopefully this works better)
35 ********************************************************************/
37 /* To have statistics (just packets sent) define this */
40 #include <linux/config.h>
41 #include <linux/module.h>
42 #include <linux/kernel.h>
43 #include <linux/init.h>
44 #include <linux/types.h>
45 #include <linux/fcntl.h>
46 #include <linux/interrupt.h>
47 #include <linux/ptrace.h>
48 #include <linux/ioport.h>
50 #include <linux/slab.h>
51 #include <linux/string.h>
52 #include <linux/timer.h>
53 #include <linux/errno.h>
54 #include <linux/netdevice.h>
55 #include <linux/etherdevice.h>
56 #include <linux/skbuff.h>
57 #include <linux/bitops.h>
58 #include <linux/wireless.h>
59 #include <net/iw_handler.h>
61 #include <pcmcia/cs_types.h>
62 #include <pcmcia/cs.h>
63 #include <pcmcia/cistpl.h>
64 #include <pcmcia/cisreg.h>
65 #include <pcmcia/ds.h>
66 #include <pcmcia/mem_op.h>
68 #include <asm/system.h>
72 #define NETWAVE_REGOFF 0x8000
73 /* The Netwave IO registers, offsets to iobase */
74 #define NETWAVE_REG_COR 0x0
75 #define NETWAVE_REG_CCSR 0x2
76 #define NETWAVE_REG_ASR 0x4
77 #define NETWAVE_REG_IMR 0xa
78 #define NETWAVE_REG_PMR 0xc
79 #define NETWAVE_REG_IOLOW 0x6
80 #define NETWAVE_REG_IOHI 0x7
81 #define NETWAVE_REG_IOCONTROL 0x8
82 #define NETWAVE_REG_DATA 0xf
83 /* The Netwave Extended IO registers, offsets to RamBase */
84 #define NETWAVE_EREG_ASCC 0x114
85 #define NETWAVE_EREG_RSER 0x120
86 #define NETWAVE_EREG_RSERW 0x124
87 #define NETWAVE_EREG_TSER 0x130
88 #define NETWAVE_EREG_TSERW 0x134
89 #define NETWAVE_EREG_CB 0x100
90 #define NETWAVE_EREG_SPCQ 0x154
91 #define NETWAVE_EREG_SPU 0x155
92 #define NETWAVE_EREG_LIF 0x14e
93 #define NETWAVE_EREG_ISPLQ 0x156
94 #define NETWAVE_EREG_HHC 0x158
95 #define NETWAVE_EREG_NI 0x16e
96 #define NETWAVE_EREG_MHS 0x16b
97 #define NETWAVE_EREG_TDP 0x140
98 #define NETWAVE_EREG_RDP 0x150
99 #define NETWAVE_EREG_PA 0x160
100 #define NETWAVE_EREG_EC 0x180
101 #define NETWAVE_EREG_CRBP 0x17a
102 #define NETWAVE_EREG_ARW 0x166
105 * Commands used in the extended command buffer
106 * NETWAVE_EREG_CB (0x100-0x10F)
108 #define NETWAVE_CMD_NOP 0x00
109 #define NETWAVE_CMD_SRC 0x01
110 #define NETWAVE_CMD_STC 0x02
111 #define NETWAVE_CMD_AMA 0x03
112 #define NETWAVE_CMD_DMA 0x04
113 #define NETWAVE_CMD_SAMA 0x05
114 #define NETWAVE_CMD_ER 0x06
115 #define NETWAVE_CMD_DR 0x07
116 #define NETWAVE_CMD_TL 0x08
117 #define NETWAVE_CMD_SRP 0x09
118 #define NETWAVE_CMD_SSK 0x0a
119 #define NETWAVE_CMD_SMD 0x0b
120 #define NETWAVE_CMD_SAPD 0x0c
121 #define NETWAVE_CMD_SSS 0x11
122 /* End of Command marker */
123 #define NETWAVE_CMD_EOC 0x00
125 /* ASR register bits */
126 #define NETWAVE_ASR_RXRDY 0x80
127 #define NETWAVE_ASR_TXBA 0x01
129 #define TX_TIMEOUT ((32*HZ)/100)
131 static const unsigned int imrConfRFU1 = 0x10; /* RFU interrupt mask, keep high */
132 static const unsigned int imrConfIENA = 0x02; /* Interrupt enable */
134 static const unsigned int corConfIENA = 0x01; /* Interrupt enable */
135 static const unsigned int corConfLVLREQ = 0x40; /* Keep high */
137 static const unsigned int rxConfRxEna = 0x80; /* Receive Enable */
138 static const unsigned int rxConfMAC = 0x20; /* MAC host receive mode*/
139 static const unsigned int rxConfPro = 0x10; /* Promiscuous */
140 static const unsigned int rxConfAMP = 0x08; /* Accept Multicast Packets */
141 static const unsigned int rxConfBcast = 0x04; /* Accept Broadcast Packets */
143 static const unsigned int txConfTxEna = 0x80; /* Transmit Enable */
144 static const unsigned int txConfMAC = 0x20; /* Host sends MAC mode */
145 static const unsigned int txConfEUD = 0x10; /* Enable Uni-Data packets */
146 static const unsigned int txConfKey = 0x02; /* Scramble data packets */
147 static const unsigned int txConfLoop = 0x01; /* Loopback mode */
150 All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
151 you do not define PCMCIA_DEBUG at all, all the debug code will be
152 left out. If you compile with PCMCIA_DEBUG=0, the debug code will
153 be present but disabled -- but it can then be enabled for specific
154 modules at load time with a 'pc_debug=#' option to insmod.
158 static int pc_debug = PCMCIA_DEBUG;
159 module_param(pc_debug, int, 0);
160 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
161 static char *version =
162 "netwave_cs.c 0.3.0 Thu Jul 17 14:36:02 1997 (John Markus Bjørndalen)\n";
164 #define DEBUG(n, args...)
167 /*====================================================================*/
169 /* Parameters that can be set with 'insmod' */
171 /* Choose the domain, default is 0x100 */
172 static u_int domain = 0x100;
174 /* Scramble key, range from 0x0 to 0xffff.
175 * 0x0 is no scrambling.
177 static u_int scramble_key = 0x0;
179 /* Shared memory speed, in ns. The documentation states that
180 * the card should not be read faster than every 400ns.
181 * This timing should be provided by the HBA. If it becomes a
182 * problem, try setting mem_speed to 400.
184 static int mem_speed;
186 module_param(domain, int, 0);
187 module_param(scramble_key, int, 0);
188 module_param(mem_speed, int, 0);
190 /*====================================================================*/
192 /* PCMCIA (Card Services) related functions */
193 static void netwave_release(dev_link_t *link); /* Card removal */
194 static void netwave_pcmcia_config(dev_link_t *arg); /* Runs after card
196 static void netwave_detach(struct pcmcia_device *p_dev); /* Destroy instance */
198 /* Hardware configuration */
199 static void netwave_doreset(kio_addr_t iobase, u_char __iomem *ramBase);
200 static void netwave_reset(struct net_device *dev);
202 /* Misc device stuff */
203 static int netwave_open(struct net_device *dev); /* Open the device */
204 static int netwave_close(struct net_device *dev); /* Close the device */
206 /* Packet transmission and Packet reception */
207 static int netwave_start_xmit( struct sk_buff *skb, struct net_device *dev);
208 static int netwave_rx( struct net_device *dev);
210 /* Interrupt routines */
211 static irqreturn_t netwave_interrupt(int irq, void *dev_id, struct pt_regs *regs);
212 static void netwave_watchdog(struct net_device *);
215 static void update_stats(struct net_device *dev);
216 static struct net_device_stats *netwave_get_stats(struct net_device *dev);
218 /* Wireless extensions */
219 static struct iw_statistics* netwave_get_wireless_stats(struct net_device *dev);
221 static void set_multicast_list(struct net_device *dev);
224 A dev_link_t structure has fields for most things that are needed
225 to keep track of a socket, but there will usually be some device
226 specific information that also needs to be kept track of. The
227 'priv' pointer in a dev_link_t structure can be used to point to
228 a device-specific private data structure, like this.
230 A driver needs to provide a dev_node_t structure for each device
231 on a card. In some cases, there is only one device per card (for
232 example, ethernet cards, modems). In other cases, there may be
233 many actual or logical devices (SCSI adapters, memory cards with
234 multiple partitions). The dev_node_t structures need to be kept
235 in a linked list starting at the 'dev' field of a dev_link_t
236 structure. We allocate them in the card's private data structure,
237 because they generally can't be allocated dynamically.
240 static const struct iw_handler_def netwave_handler_def;
242 #define SIOCGIPSNAP SIOCIWFIRSTPRIV + 1 /* Site Survey Snapshot */
246 typedef struct net_addr {
252 u_char struct_revision;
253 u_char roaming_state;
255 u_char sp_existsFlag;
256 u_char sp_link_quality;
257 u_char sp_max_link_quality;
258 u_char linkQualityGoodFairBoundary;
259 u_char linkQualityFairPoorBoundary;
260 u_char sp_utilization;
262 u_char sp_hotheadcount;
263 u_char roaming_condition;
267 net_addr nearByAccessPoints[MAX_ESA];
270 typedef struct netwave_private {
271 struct pcmcia_device *p_dev;
272 spinlock_t spinlock; /* Serialize access to the hardware (SMP) */
274 u_char __iomem *ramBase;
277 struct timer_list watchdog; /* To avoid blocking state */
278 struct site_survey nss;
279 struct net_device_stats stats;
280 struct iw_statistics iw_stats; /* Wireless stats */
284 static struct net_device_stats *netwave_get_stats(struct net_device *dev);
288 * The Netwave card is little-endian, so won't work for big endian
291 static inline unsigned short get_uint16(u_char __iomem *staddr)
293 return readw(staddr); /* Return only 16 bits */
296 static inline short get_int16(u_char __iomem * staddr)
298 return readw(staddr);
302 * Wait until the WOC (Write Operation Complete) bit in the
303 * ASR (Adapter Status Register) is asserted.
304 * This should have aborted if it takes too long time.
306 static inline void wait_WOC(unsigned int iobase)
309 while ((inb(iobase + NETWAVE_REG_ASR) & 0x8) != 0x8) ;
312 static void netwave_snapshot(netwave_private *priv, u_char __iomem *ramBase,
314 u_short resultBuffer;
316 /* if time since last snapshot is > 1 sec. (100 jiffies?) then take
317 * new snapshot, else return cached data. This is the recommended rate.
319 if ( jiffies - priv->lastExec > 100) {
320 /* Take site survey snapshot */
321 /*printk( KERN_DEBUG "Taking new snapshot. %ld\n", jiffies -
324 writeb(NETWAVE_CMD_SSS, ramBase + NETWAVE_EREG_CB + 0);
325 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
328 /* Get result and copy to cach */
329 resultBuffer = readw(ramBase + NETWAVE_EREG_CRBP);
330 copy_from_pc( &priv->nss, ramBase+resultBuffer,
331 sizeof(struct site_survey));
336 * Function netwave_get_wireless_stats (dev)
338 * Wireless extensions statistics
341 static struct iw_statistics *netwave_get_wireless_stats(struct net_device *dev)
344 kio_addr_t iobase = dev->base_addr;
345 netwave_private *priv = netdev_priv(dev);
346 u_char __iomem *ramBase = priv->ramBase;
347 struct iw_statistics* wstats;
349 wstats = &priv->iw_stats;
351 spin_lock_irqsave(&priv->spinlock, flags);
353 netwave_snapshot( priv, ramBase, iobase);
355 wstats->status = priv->nss.roaming_state;
356 wstats->qual.qual = readb( ramBase + NETWAVE_EREG_SPCQ);
357 wstats->qual.level = readb( ramBase + NETWAVE_EREG_ISPLQ);
358 wstats->qual.noise = readb( ramBase + NETWAVE_EREG_SPU) & 0x3f;
359 wstats->discard.nwid = 0L;
360 wstats->discard.code = 0L;
361 wstats->discard.misc = 0L;
363 spin_unlock_irqrestore(&priv->spinlock, flags);
365 return &priv->iw_stats;
369 * Function netwave_attach (void)
371 * Creates an "instance" of the driver, allocating local data
372 * structures for one device. The device is registered with Card
375 * The dev_link structure is initialized, but we don't actually
376 * configure the card at this point -- we wait until we receive a
377 * card insertion event.
379 static int netwave_attach(struct pcmcia_device *p_dev)
381 struct net_device *dev;
382 netwave_private *priv;
383 dev_link_t *link = dev_to_instance(p_dev);
385 DEBUG(0, "netwave_attach()\n");
387 /* Initialize the dev_link_t structure */
388 dev = alloc_etherdev(sizeof(netwave_private));
391 priv = netdev_priv(dev);
395 /* The io structure describes IO port mapping */
396 link->io.NumPorts1 = 16;
397 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
398 /* link->io.NumPorts2 = 16;
399 link->io.Attributes2 = IO_DATA_PATH_WIDTH_16; */
400 link->io.IOAddrLines = 5;
402 /* Interrupt setup */
403 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
404 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
405 link->irq.Handler = &netwave_interrupt;
407 /* General socket configuration */
408 link->conf.Attributes = CONF_ENABLE_IRQ;
409 link->conf.IntType = INT_MEMORY_AND_IO;
410 link->conf.ConfigIndex = 1;
411 link->conf.Present = PRESENT_OPTION;
413 /* Netwave private struct init. link/dev/node already taken care of,
414 * other stuff zero'd - Jean II */
415 spin_lock_init(&priv->spinlock);
417 /* Netwave specific entries in the device structure */
418 SET_MODULE_OWNER(dev);
419 dev->hard_start_xmit = &netwave_start_xmit;
420 dev->get_stats = &netwave_get_stats;
421 dev->set_multicast_list = &set_multicast_list;
422 /* wireless extensions */
423 dev->wireless_handlers = (struct iw_handler_def *)&netwave_handler_def;
425 dev->tx_timeout = &netwave_watchdog;
426 dev->watchdog_timeo = TX_TIMEOUT;
428 dev->open = &netwave_open;
429 dev->stop = &netwave_close;
430 link->irq.Instance = dev;
432 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
433 netwave_pcmcia_config( link);
436 } /* netwave_attach */
439 * Function netwave_detach (link)
441 * This deletes a driver "instance". The device is de-registered
442 * with Card Services. If it has been released, all local data
443 * structures are freed. Otherwise, the structures will be freed
444 * when the device is released.
446 static void netwave_detach(struct pcmcia_device *p_dev)
448 dev_link_t *link = dev_to_instance(p_dev);
449 struct net_device *dev = link->priv;
451 DEBUG(0, "netwave_detach(0x%p)\n", link);
453 if (link->state & DEV_CONFIG)
454 netwave_release(link);
457 unregister_netdev(dev);
460 } /* netwave_detach */
463 * Wireless Handler : get protocol name
465 static int netwave_get_name(struct net_device *dev,
466 struct iw_request_info *info,
467 union iwreq_data *wrqu,
470 strcpy(wrqu->name, "Netwave");
475 * Wireless Handler : set Network ID
477 static int netwave_set_nwid(struct net_device *dev,
478 struct iw_request_info *info,
479 union iwreq_data *wrqu,
483 kio_addr_t iobase = dev->base_addr;
484 netwave_private *priv = netdev_priv(dev);
485 u_char __iomem *ramBase = priv->ramBase;
487 /* Disable interrupts & save flags */
488 spin_lock_irqsave(&priv->spinlock, flags);
490 if(!wrqu->nwid.disabled) {
491 domain = wrqu->nwid.value;
492 printk( KERN_DEBUG "Setting domain to 0x%x%02x\n",
493 (domain >> 8) & 0x01, domain & 0xff);
495 writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0);
496 writeb( domain & 0xff, ramBase + NETWAVE_EREG_CB + 1);
497 writeb((domain >>8 ) & 0x01,ramBase + NETWAVE_EREG_CB+2);
498 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
501 /* ReEnable interrupts & restore flags */
502 spin_unlock_irqrestore(&priv->spinlock, flags);
508 * Wireless Handler : get Network ID
510 static int netwave_get_nwid(struct net_device *dev,
511 struct iw_request_info *info,
512 union iwreq_data *wrqu,
515 wrqu->nwid.value = domain;
516 wrqu->nwid.disabled = 0;
517 wrqu->nwid.fixed = 1;
522 * Wireless Handler : set scramble key
524 static int netwave_set_scramble(struct net_device *dev,
525 struct iw_request_info *info,
526 union iwreq_data *wrqu,
530 kio_addr_t iobase = dev->base_addr;
531 netwave_private *priv = netdev_priv(dev);
532 u_char __iomem *ramBase = priv->ramBase;
534 /* Disable interrupts & save flags */
535 spin_lock_irqsave(&priv->spinlock, flags);
537 scramble_key = (key[0] << 8) | key[1];
539 writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0);
540 writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1);
541 writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
542 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
544 /* ReEnable interrupts & restore flags */
545 spin_unlock_irqrestore(&priv->spinlock, flags);
551 * Wireless Handler : get scramble key
553 static int netwave_get_scramble(struct net_device *dev,
554 struct iw_request_info *info,
555 union iwreq_data *wrqu,
558 key[1] = scramble_key & 0xff;
559 key[0] = (scramble_key>>8) & 0xff;
560 wrqu->encoding.flags = IW_ENCODE_ENABLED;
561 wrqu->encoding.length = 2;
566 * Wireless Handler : get mode
568 static int netwave_get_mode(struct net_device *dev,
569 struct iw_request_info *info,
570 union iwreq_data *wrqu,
574 wrqu->mode = IW_MODE_INFRA;
576 wrqu->mode = IW_MODE_ADHOC;
582 * Wireless Handler : get range info
584 static int netwave_get_range(struct net_device *dev,
585 struct iw_request_info *info,
586 union iwreq_data *wrqu,
589 struct iw_range *range = (struct iw_range *) extra;
592 /* Set the length (very important for backward compatibility) */
593 wrqu->data.length = sizeof(struct iw_range);
595 /* Set all the info we don't care or don't know about to zero */
596 memset(range, 0, sizeof(struct iw_range));
598 /* Set the Wireless Extension versions */
599 range->we_version_compiled = WIRELESS_EXT;
600 range->we_version_source = 9; /* Nothing for us in v10 and v11 */
602 /* Set information in the range struct */
603 range->throughput = 450 * 1000; /* don't argue on this ! */
604 range->min_nwid = 0x0000;
605 range->max_nwid = 0x01FF;
607 range->num_channels = range->num_frequency = 0;
609 range->sensitivity = 0x3F;
610 range->max_qual.qual = 255;
611 range->max_qual.level = 255;
612 range->max_qual.noise = 0;
614 range->num_bitrates = 1;
615 range->bitrate[0] = 1000000; /* 1 Mb/s */
617 range->encoding_size[0] = 2; /* 16 bits scrambling */
618 range->num_encoding_sizes = 1;
619 range->max_encoding_tokens = 1; /* Only one key possible */
625 * Wireless Private Handler : get snapshot
627 static int netwave_get_snap(struct net_device *dev,
628 struct iw_request_info *info,
629 union iwreq_data *wrqu,
633 kio_addr_t iobase = dev->base_addr;
634 netwave_private *priv = netdev_priv(dev);
635 u_char __iomem *ramBase = priv->ramBase;
637 /* Disable interrupts & save flags */
638 spin_lock_irqsave(&priv->spinlock, flags);
640 /* Take snapshot of environment */
641 netwave_snapshot( priv, ramBase, iobase);
642 wrqu->data.length = priv->nss.length;
643 memcpy(extra, (u_char *) &priv->nss, sizeof( struct site_survey));
645 priv->lastExec = jiffies;
647 /* ReEnable interrupts & restore flags */
648 spin_unlock_irqrestore(&priv->spinlock, flags);
654 * Structures to export the Wireless Handlers
655 * This is the stuff that are treated the wireless extensions (iwconfig)
658 static const struct iw_priv_args netwave_private_args[] = {
659 /*{ cmd, set_args, get_args, name } */
661 IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof(struct site_survey),
665 static const iw_handler netwave_handler[] =
667 NULL, /* SIOCSIWNAME */
668 netwave_get_name, /* SIOCGIWNAME */
669 netwave_set_nwid, /* SIOCSIWNWID */
670 netwave_get_nwid, /* SIOCGIWNWID */
671 NULL, /* SIOCSIWFREQ */
672 NULL, /* SIOCGIWFREQ */
673 NULL, /* SIOCSIWMODE */
674 netwave_get_mode, /* SIOCGIWMODE */
675 NULL, /* SIOCSIWSENS */
676 NULL, /* SIOCGIWSENS */
677 NULL, /* SIOCSIWRANGE */
678 netwave_get_range, /* SIOCGIWRANGE */
679 NULL, /* SIOCSIWPRIV */
680 NULL, /* SIOCGIWPRIV */
681 NULL, /* SIOCSIWSTATS */
682 NULL, /* SIOCGIWSTATS */
683 NULL, /* SIOCSIWSPY */
684 NULL, /* SIOCGIWSPY */
685 NULL, /* -- hole -- */
686 NULL, /* -- hole -- */
687 NULL, /* SIOCSIWAP */
688 NULL, /* SIOCGIWAP */
689 NULL, /* -- hole -- */
690 NULL, /* SIOCGIWAPLIST */
691 NULL, /* -- hole -- */
692 NULL, /* -- hole -- */
693 NULL, /* SIOCSIWESSID */
694 NULL, /* SIOCGIWESSID */
695 NULL, /* SIOCSIWNICKN */
696 NULL, /* SIOCGIWNICKN */
697 NULL, /* -- hole -- */
698 NULL, /* -- hole -- */
699 NULL, /* SIOCSIWRATE */
700 NULL, /* SIOCGIWRATE */
701 NULL, /* SIOCSIWRTS */
702 NULL, /* SIOCGIWRTS */
703 NULL, /* SIOCSIWFRAG */
704 NULL, /* SIOCGIWFRAG */
705 NULL, /* SIOCSIWTXPOW */
706 NULL, /* SIOCGIWTXPOW */
707 NULL, /* SIOCSIWRETRY */
708 NULL, /* SIOCGIWRETRY */
709 netwave_set_scramble, /* SIOCSIWENCODE */
710 netwave_get_scramble, /* SIOCGIWENCODE */
713 static const iw_handler netwave_private_handler[] =
715 NULL, /* SIOCIWFIRSTPRIV */
716 netwave_get_snap, /* SIOCIWFIRSTPRIV + 1 */
719 static const struct iw_handler_def netwave_handler_def =
721 .num_standard = sizeof(netwave_handler)/sizeof(iw_handler),
722 .num_private = sizeof(netwave_private_handler)/sizeof(iw_handler),
723 .num_private_args = sizeof(netwave_private_args)/sizeof(struct iw_priv_args),
724 .standard = (iw_handler *) netwave_handler,
725 .private = (iw_handler *) netwave_private_handler,
726 .private_args = (struct iw_priv_args *) netwave_private_args,
727 .get_wireless_stats = netwave_get_wireless_stats,
731 * Function netwave_pcmcia_config (link)
733 * netwave_pcmcia_config() is scheduled to run after a CARD_INSERTION
734 * event is received, to configure the PCMCIA socket, and to make the
735 * device available to the system.
739 #define CS_CHECK(fn, ret) \
740 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
742 static void netwave_pcmcia_config(dev_link_t *link) {
743 client_handle_t handle = link->handle;
744 struct net_device *dev = link->priv;
745 netwave_private *priv = netdev_priv(dev);
748 int i, j, last_ret, last_fn;
752 u_char __iomem *ramBase = NULL;
754 DEBUG(0, "netwave_pcmcia_config(0x%p)\n", link);
757 This reads the card's CONFIG tuple to find its configuration
760 tuple.Attributes = 0;
761 tuple.TupleData = (cisdata_t *) buf;
762 tuple.TupleDataMax = 64;
763 tuple.TupleOffset = 0;
764 tuple.DesiredTuple = CISTPL_CONFIG;
765 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
766 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
767 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
768 link->conf.ConfigBase = parse.config.base;
769 link->conf.Present = parse.config.rmask[0];
772 link->state |= DEV_CONFIG;
775 * Try allocating IO ports. This tries a few fixed addresses.
776 * If you want, you can also read the card's config table to
777 * pick addresses -- see the serial driver for an example.
779 for (i = j = 0x0; j < 0x400; j += 0x20) {
780 link->io.BasePort1 = j ^ 0x300;
781 i = pcmcia_request_io(link->handle, &link->io);
782 if (i == CS_SUCCESS) break;
784 if (i != CS_SUCCESS) {
785 cs_error(link->handle, RequestIO, i);
790 * Now allocate an interrupt line. Note that this does not
791 * actually assign a handler to the interrupt.
793 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
796 * This actually configures the PCMCIA socket -- setting up
797 * the I/O windows and the interrupt mapping.
799 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
802 * Allocate a 32K memory window. Note that the dev_link_t
803 * structure provides space for one window handle -- if your
804 * device needs several windows, you'll need to keep track of
805 * the handles in your private data structure, dev->priv.
807 DEBUG(1, "Setting mem speed of %d\n", mem_speed);
809 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
810 req.Base = 0; req.Size = 0x8000;
811 req.AccessSpeed = mem_speed;
812 CS_CHECK(RequestWindow, pcmcia_request_window(&link->handle, &req, &link->win));
813 mem.CardOffset = 0x20000; mem.Page = 0;
814 CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
816 /* Store base address of the common window frame */
817 ramBase = ioremap(req.Base, 0x8000);
818 priv->ramBase = ramBase;
820 dev->irq = link->irq.AssignedIRQ;
821 dev->base_addr = link->io.BasePort1;
822 SET_NETDEV_DEV(dev, &handle_to_dev(handle));
824 if (register_netdev(dev) != 0) {
825 printk(KERN_DEBUG "netwave_cs: register_netdev() failed\n");
829 strcpy(priv->node.dev_name, dev->name);
830 link->dev_node = &priv->node;
831 link->state &= ~DEV_CONFIG_PENDING;
833 /* Reset card before reading physical address */
834 netwave_doreset(dev->base_addr, ramBase);
836 /* Read the ethernet address and fill in the Netwave registers. */
837 for (i = 0; i < 6; i++)
838 dev->dev_addr[i] = readb(ramBase + NETWAVE_EREG_PA + i);
840 printk(KERN_INFO "%s: Netwave: port %#3lx, irq %d, mem %lx id "
841 "%c%c, hw_addr ", dev->name, dev->base_addr, dev->irq,
842 (u_long) ramBase, (int) readb(ramBase+NETWAVE_EREG_NI),
843 (int) readb(ramBase+NETWAVE_EREG_NI+1));
844 for (i = 0; i < 6; i++)
845 printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n"));
847 /* get revision words */
848 printk(KERN_DEBUG "Netwave_reset: revision %04x %04x\n",
849 get_uint16(ramBase + NETWAVE_EREG_ARW),
850 get_uint16(ramBase + NETWAVE_EREG_ARW+2));
854 cs_error(link->handle, last_fn, last_ret);
856 netwave_release(link);
857 } /* netwave_pcmcia_config */
860 * Function netwave_release (arg)
862 * After a card is removed, netwave_release() will unregister the net
863 * device, and release the PCMCIA configuration. If the device is
864 * still open, this will be postponed until it is closed.
866 static void netwave_release(dev_link_t *link)
868 struct net_device *dev = link->priv;
869 netwave_private *priv = netdev_priv(dev);
871 DEBUG(0, "netwave_release(0x%p)\n", link);
873 pcmcia_disable_device(link->handle);
875 iounmap(priv->ramBase);
878 static int netwave_suspend(struct pcmcia_device *p_dev)
880 dev_link_t *link = dev_to_instance(p_dev);
881 struct net_device *dev = link->priv;
883 if ((link->state & DEV_CONFIG) && (link->open))
884 netif_device_detach(dev);
889 static int netwave_resume(struct pcmcia_device *p_dev)
891 dev_link_t *link = dev_to_instance(p_dev);
892 struct net_device *dev = link->priv;
894 if ((link->state & DEV_CONFIG) && (link->open)) {
896 netif_device_attach(dev);
904 * Function netwave_doreset (ioBase, ramBase)
906 * Proper hardware reset of the card.
908 static void netwave_doreset(kio_addr_t ioBase, u_char __iomem *ramBase)
912 outb(0x80, ioBase + NETWAVE_REG_PMR);
913 writeb(0x08, ramBase + NETWAVE_EREG_ASCC); /* Bit 3 is WOC */
914 outb(0x0, ioBase + NETWAVE_REG_PMR); /* release reset */
918 * Function netwave_reset (dev)
920 * Reset and restore all of the netwave registers
922 static void netwave_reset(struct net_device *dev) {
924 netwave_private *priv = netdev_priv(dev);
925 u_char __iomem *ramBase = priv->ramBase;
926 kio_addr_t iobase = dev->base_addr;
928 DEBUG(0, "netwave_reset: Done with hardware reset\n");
930 priv->timeoutCounter = 0;
933 netwave_doreset(iobase, ramBase);
934 printk(KERN_DEBUG "netwave_reset: Done with hardware reset\n");
936 /* Write a NOP to check the card */
938 writeb(NETWAVE_CMD_NOP, ramBase + NETWAVE_EREG_CB + 0);
939 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
941 /* Set receive conf */
943 writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0);
944 writeb(rxConfRxEna + rxConfBcast, ramBase + NETWAVE_EREG_CB + 1);
945 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
947 /* Set transmit conf */
949 writeb(NETWAVE_CMD_STC, ramBase + NETWAVE_EREG_CB + 0);
950 writeb(txConfTxEna, ramBase + NETWAVE_EREG_CB + 1);
951 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
953 /* Now set the MU Domain */
954 printk(KERN_DEBUG "Setting domain to 0x%x%02x\n", (domain >> 8) & 0x01, domain & 0xff);
956 writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0);
957 writeb(domain & 0xff, ramBase + NETWAVE_EREG_CB + 1);
958 writeb((domain>>8) & 0x01, ramBase + NETWAVE_EREG_CB + 2);
959 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
961 /* Set scramble key */
962 printk(KERN_DEBUG "Setting scramble key to 0x%x\n", scramble_key);
964 writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0);
965 writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1);
966 writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
967 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
969 /* Enable interrupts, bit 4 high to keep unused
970 * source from interrupting us, bit 2 high to
971 * set interrupt enable, 567 to enable TxDN,
975 outb(imrConfIENA+imrConfRFU1, iobase + NETWAVE_REG_IMR);
977 /* Hent 4 bytes fra 0x170. Skal vaere 0a,29,88,36
979 * skriv 80 til d000:3688
980 * sjekk om det ble 80
983 /* Enable Receiver */
985 writeb(NETWAVE_CMD_ER, ramBase + NETWAVE_EREG_CB + 0);
986 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
988 /* Set the IENA bit in COR */
990 outb(corConfIENA + corConfLVLREQ, iobase + NETWAVE_REG_COR);
994 * Function netwave_hw_xmit (data, len, dev)
996 static int netwave_hw_xmit(unsigned char* data, int len,
997 struct net_device* dev) {
999 unsigned int TxFreeList,
1005 netwave_private *priv = netdev_priv(dev);
1006 u_char __iomem * ramBase = priv->ramBase;
1007 kio_addr_t iobase = dev->base_addr;
1009 /* Disable interrupts & save flags */
1010 spin_lock_irqsave(&priv->spinlock, flags);
1012 /* Check if there are transmit buffers available */
1014 if ((inb(iobase+NETWAVE_REG_ASR) & NETWAVE_ASR_TXBA) == 0) {
1015 /* No buffers available */
1016 printk(KERN_DEBUG "netwave_hw_xmit: %s - no xmit buffers available.\n",
1018 spin_unlock_irqrestore(&priv->spinlock, flags);
1022 priv->stats.tx_bytes += len;
1024 DEBUG(3, "Transmitting with SPCQ %x SPU %x LIF %x ISPLQ %x\n",
1025 readb(ramBase + NETWAVE_EREG_SPCQ),
1026 readb(ramBase + NETWAVE_EREG_SPU),
1027 readb(ramBase + NETWAVE_EREG_LIF),
1028 readb(ramBase + NETWAVE_EREG_ISPLQ));
1030 /* Now try to insert it into the adapters free memory */
1032 TxFreeList = get_uint16(ramBase + NETWAVE_EREG_TDP);
1033 MaxData = get_uint16(ramBase + NETWAVE_EREG_TDP+2);
1034 DataOffset = get_uint16(ramBase + NETWAVE_EREG_TDP+4);
1036 DEBUG(3, "TxFreeList %x, MaxData %x, DataOffset %x\n",
1037 TxFreeList, MaxData, DataOffset);
1039 /* Copy packet to the adapter fragment buffers */
1040 curBuff = TxFreeList;
1042 while (tmpcount < len) {
1043 int tmplen = len - tmpcount;
1044 copy_to_pc(ramBase + curBuff + DataOffset, data + tmpcount,
1045 (tmplen < MaxData) ? tmplen : MaxData);
1046 tmpcount += MaxData;
1048 /* Advance to next buffer */
1049 curBuff = get_uint16(ramBase + curBuff);
1052 /* Now issue transmit list */
1054 writeb(NETWAVE_CMD_TL, ramBase + NETWAVE_EREG_CB + 0);
1055 writeb(len & 0xff, ramBase + NETWAVE_EREG_CB + 1);
1056 writeb((len>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
1057 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
1059 spin_unlock_irqrestore(&priv->spinlock, flags);
1063 static int netwave_start_xmit(struct sk_buff *skb, struct net_device *dev) {
1064 /* This flag indicate that the hardware can't perform a transmission.
1065 * Theoritically, NET3 check it before sending a packet to the driver,
1066 * but in fact it never do that and pool continuously.
1067 * As the watchdog will abort too long transmissions, we are quite safe...
1070 netif_stop_queue(dev);
1073 short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
1074 unsigned char* buf = skb->data;
1076 if (netwave_hw_xmit( buf, length, dev) == 1) {
1077 /* Some error, let's make them call us another time? */
1078 netif_start_queue(dev);
1080 dev->trans_start = jiffies;
1085 } /* netwave_start_xmit */
1088 * Function netwave_interrupt (irq, dev_id, regs)
1090 * This function is the interrupt handler for the Netwave card. This
1091 * routine will be called whenever:
1092 * 1. A packet is received.
1093 * 2. A packet has successfully been transferred and the unit is
1094 * ready to transmit another packet.
1095 * 3. A command has completed execution.
1097 static irqreturn_t netwave_interrupt(int irq, void* dev_id, struct pt_regs *regs)
1100 u_char __iomem *ramBase;
1101 struct net_device *dev = (struct net_device *)dev_id;
1102 struct netwave_private *priv = netdev_priv(dev);
1103 dev_link_t *link = priv->p_dev;
1106 if (!netif_device_present(dev))
1109 iobase = dev->base_addr;
1110 ramBase = priv->ramBase;
1112 /* Now find what caused the interrupt, check while interrupts ready */
1113 for (i = 0; i < 10; i++) {
1117 if (!(inb(iobase+NETWAVE_REG_CCSR) & 0x02))
1118 break; /* None of the interrupt sources asserted (normal exit) */
1120 status = inb(iobase + NETWAVE_REG_ASR);
1122 if (!DEV_OK(link)) {
1123 DEBUG(1, "netwave_interrupt: Interrupt with status 0x%x "
1124 "from removed or suspended card!\n", status);
1129 if (status & 0x80) {
1131 /* wait_WOC(iobase); */
1132 /* RxRdy cannot be reset directly by the host */
1135 if (status & 0x40) {
1138 rser = readb(ramBase + NETWAVE_EREG_RSER);
1141 ++priv->stats.rx_dropped;
1142 ++priv->stats.rx_crc_errors;
1145 ++priv->stats.rx_frame_errors;
1147 /* Clear the RxErr bit in RSER. RSER+4 is the
1148 * write part. Also clear the RxCRC (0x04) and
1149 * RxBig (0x02) bits if present */
1151 writeb(0x40 | (rser & 0x06), ramBase + NETWAVE_EREG_RSER + 4);
1153 /* Write bit 6 high to ASCC to clear RxErr in ASR,
1154 * WOC must be set first!
1157 writeb(0x40, ramBase + NETWAVE_EREG_ASCC);
1159 /* Remember to count up priv->stats on error packets */
1160 ++priv->stats.rx_errors;
1163 if (status & 0x20) {
1166 txStatus = readb(ramBase + NETWAVE_EREG_TSER);
1167 DEBUG(3, "Transmit done. TSER = %x id %x\n",
1168 txStatus, readb(ramBase + NETWAVE_EREG_TSER + 1));
1170 if (txStatus & 0x20) {
1171 /* Transmitting was okay, clear bits */
1173 writeb(0x2f, ramBase + NETWAVE_EREG_TSER + 4);
1174 ++priv->stats.tx_packets;
1177 if (txStatus & 0xd0) {
1178 if (txStatus & 0x80) {
1179 ++priv->stats.collisions; /* Because of /proc/net/dev*/
1180 /* ++priv->stats.tx_aborted_errors; */
1181 /* printk("Collision. %ld\n", jiffies - dev->trans_start); */
1183 if (txStatus & 0x40)
1184 ++priv->stats.tx_carrier_errors;
1185 /* 0x80 TxGU Transmit giveup - nine times and no luck
1186 * 0x40 TxNOAP No access point. Discarded packet.
1187 * 0x10 TxErr Transmit error. Always set when
1188 * TxGU and TxNOAP is set. (Those are the only ones
1191 DEBUG(3, "netwave_interrupt: TxDN with error status %x\n",
1194 /* Clear out TxGU, TxNOAP, TxErr and TxTrys */
1196 writeb(0xdf & txStatus, ramBase+NETWAVE_EREG_TSER+4);
1197 ++priv->stats.tx_errors;
1199 DEBUG(3, "New status is TSER %x ASR %x\n",
1200 readb(ramBase + NETWAVE_EREG_TSER),
1201 inb(iobase + NETWAVE_REG_ASR));
1203 netif_wake_queue(dev);
1205 /* TxBA, this would trigger on all error packets received */
1206 /* if (status & 0x01) {
1207 DEBUG(4, "Transmit buffers available, %x\n", status);
1211 /* Handled if we looped at least one time - Jean II */
1212 return IRQ_RETVAL(i);
1213 } /* netwave_interrupt */
1216 * Function netwave_watchdog (a)
1218 * Watchdog : when we start a transmission, we set a timer in the
1219 * kernel. If the transmission complete, this timer is disabled. If
1220 * it expire, we reset the card.
1223 static void netwave_watchdog(struct net_device *dev) {
1225 DEBUG(1, "%s: netwave_watchdog: watchdog timer expired\n", dev->name);
1227 dev->trans_start = jiffies;
1228 netif_wake_queue(dev);
1229 } /* netwave_watchdog */
1231 static struct net_device_stats *netwave_get_stats(struct net_device *dev) {
1232 netwave_private *priv = netdev_priv(dev);
1236 DEBUG(2, "netwave: SPCQ %x SPU %x LIF %x ISPLQ %x MHS %x rxtx %x"
1237 " %x tx %x %x %x %x\n",
1238 readb(priv->ramBase + NETWAVE_EREG_SPCQ),
1239 readb(priv->ramBase + NETWAVE_EREG_SPU),
1240 readb(priv->ramBase + NETWAVE_EREG_LIF),
1241 readb(priv->ramBase + NETWAVE_EREG_ISPLQ),
1242 readb(priv->ramBase + NETWAVE_EREG_MHS),
1243 readb(priv->ramBase + NETWAVE_EREG_EC + 0xe),
1244 readb(priv->ramBase + NETWAVE_EREG_EC + 0xf),
1245 readb(priv->ramBase + NETWAVE_EREG_EC + 0x18),
1246 readb(priv->ramBase + NETWAVE_EREG_EC + 0x19),
1247 readb(priv->ramBase + NETWAVE_EREG_EC + 0x1a),
1248 readb(priv->ramBase + NETWAVE_EREG_EC + 0x1b));
1250 return &priv->stats;
1253 static void update_stats(struct net_device *dev) {
1254 //unsigned long flags;
1255 /* netwave_private *priv = netdev_priv(dev); */
1257 //spin_lock_irqsave(&priv->spinlock, flags);
1259 /* priv->stats.rx_packets = readb(priv->ramBase + 0x18e);
1260 priv->stats.tx_packets = readb(priv->ramBase + 0x18f); */
1262 //spin_unlock_irqrestore(&priv->spinlock, flags);
1265 static int netwave_rx(struct net_device *dev)
1267 netwave_private *priv = netdev_priv(dev);
1268 u_char __iomem *ramBase = priv->ramBase;
1269 kio_addr_t iobase = dev->base_addr;
1271 struct sk_buff *skb = NULL;
1272 unsigned int curBuffer,
1276 int dataCount, dataOffset;
1280 DEBUG(3, "xinw_rx: Receiving ... \n");
1282 /* Receive max 10 packets for now. */
1283 for (i = 0; i < 10; i++) {
1286 rxStatus = readb(ramBase + NETWAVE_EREG_RSER);
1287 if ( !( rxStatus & 0x80)) /* No more packets */
1290 /* Check if multicast/broadcast or other */
1291 /* multicast = (rxStatus & 0x20); */
1293 /* The receive list pointer and length of the packet */
1295 rcvLen = get_int16( ramBase + NETWAVE_EREG_RDP);
1296 rcvList = get_uint16( ramBase + NETWAVE_EREG_RDP + 2);
1299 printk(KERN_DEBUG "netwave_rx: Receive packet with len %d\n",
1304 skb = dev_alloc_skb(rcvLen+5);
1306 DEBUG(1, "netwave_rx: Could not allocate an sk_buff of "
1307 "length %d\n", rcvLen);
1308 ++priv->stats.rx_dropped;
1309 /* Tell the adapter to skip the packet */
1311 writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0);
1312 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
1316 skb_reserve( skb, 2); /* Align IP on 16 byte */
1317 skb_put( skb, rcvLen);
1320 /* Copy packet fragments to the skb data area */
1321 ptr = (u_char*) skb->data;
1322 curBuffer = rcvList;
1324 while ( tmpcount < rcvLen) {
1325 /* Get length and offset of current buffer */
1326 dataCount = get_uint16( ramBase+curBuffer+2);
1327 dataOffset = get_uint16( ramBase+curBuffer+4);
1329 copy_from_pc( ptr + tmpcount,
1330 ramBase+curBuffer+dataOffset, dataCount);
1332 tmpcount += dataCount;
1334 /* Point to next buffer */
1335 curBuffer = get_uint16(ramBase + curBuffer);
1338 skb->protocol = eth_type_trans(skb,dev);
1339 /* Queue packet for network layer */
1342 dev->last_rx = jiffies;
1343 priv->stats.rx_packets++;
1344 priv->stats.rx_bytes += rcvLen;
1346 /* Got the packet, tell the adapter to skip it */
1348 writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0);
1349 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
1350 DEBUG(3, "Packet reception ok\n");
1355 static int netwave_open(struct net_device *dev) {
1356 netwave_private *priv = netdev_priv(dev);
1357 dev_link_t *link = priv->p_dev;
1359 DEBUG(1, "netwave_open: starting.\n");
1366 netif_start_queue(dev);
1372 static int netwave_close(struct net_device *dev) {
1373 netwave_private *priv = netdev_priv(dev);
1374 dev_link_t *link = priv->p_dev;
1376 DEBUG(1, "netwave_close: finishing.\n");
1379 netif_stop_queue(dev);
1384 static struct pcmcia_device_id netwave_ids[] = {
1385 PCMCIA_DEVICE_PROD_ID12("Xircom", "CreditCard Netwave", 0x2e3ee845, 0x54e28a28),
1388 MODULE_DEVICE_TABLE(pcmcia, netwave_ids);
1390 static struct pcmcia_driver netwave_driver = {
1391 .owner = THIS_MODULE,
1393 .name = "netwave_cs",
1395 .probe = netwave_attach,
1396 .remove = netwave_detach,
1397 .id_table = netwave_ids,
1398 .suspend = netwave_suspend,
1399 .resume = netwave_resume,
1402 static int __init init_netwave_cs(void)
1404 return pcmcia_register_driver(&netwave_driver);
1407 static void __exit exit_netwave_cs(void)
1409 pcmcia_unregister_driver(&netwave_driver);
1412 module_init(init_netwave_cs);
1413 module_exit(exit_netwave_cs);
1415 /* Set or clear the multicast filter for this adaptor.
1416 num_addrs == -1 Promiscuous mode, receive all packets
1417 num_addrs == 0 Normal mode, clear multicast list
1418 num_addrs > 0 Multicast mode, receive normal and MC packets, and do
1419 best-effort filtering.
1421 static void set_multicast_list(struct net_device *dev)
1423 kio_addr_t iobase = dev->base_addr;
1424 netwave_private *priv = netdev_priv(dev);
1425 u_char __iomem * ramBase = priv->ramBase;
1431 if (old != dev->mc_count) {
1432 old = dev->mc_count;
1433 DEBUG(0, "%s: setting Rx mode to %d addresses.\n",
1434 dev->name, dev->mc_count);
1439 if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) {
1440 /* Multicast Mode */
1441 rcvMode = rxConfRxEna + rxConfAMP + rxConfBcast;
1442 } else if (dev->flags & IFF_PROMISC) {
1443 /* Promiscous mode */
1444 rcvMode = rxConfRxEna + rxConfPro + rxConfAMP + rxConfBcast;
1447 rcvMode = rxConfRxEna + rxConfBcast;
1450 /* printk("netwave set_multicast_list: rcvMode to %x\n", rcvMode);*/
1451 /* Now set receive mode */
1453 writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0);
1454 writeb(rcvMode, ramBase + NETWAVE_EREG_CB + 1);
1455 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
1457 MODULE_LICENSE("GPL");