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 {
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)
382 struct net_device *dev;
383 netwave_private *priv;
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->handle = p_dev;
433 p_dev->instance = link;
435 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
436 netwave_pcmcia_config( link);
439 } /* netwave_attach */
442 * Function netwave_detach (link)
444 * This deletes a driver "instance". The device is de-registered
445 * with Card Services. If it has been released, all local data
446 * structures are freed. Otherwise, the structures will be freed
447 * when the device is released.
449 static void netwave_detach(struct pcmcia_device *p_dev)
451 dev_link_t *link = dev_to_instance(p_dev);
452 struct net_device *dev = link->priv;
454 DEBUG(0, "netwave_detach(0x%p)\n", link);
456 if (link->state & DEV_CONFIG)
457 netwave_release(link);
460 unregister_netdev(dev);
463 } /* netwave_detach */
466 * Wireless Handler : get protocol name
468 static int netwave_get_name(struct net_device *dev,
469 struct iw_request_info *info,
470 union iwreq_data *wrqu,
473 strcpy(wrqu->name, "Netwave");
478 * Wireless Handler : set Network ID
480 static int netwave_set_nwid(struct net_device *dev,
481 struct iw_request_info *info,
482 union iwreq_data *wrqu,
486 kio_addr_t iobase = dev->base_addr;
487 netwave_private *priv = netdev_priv(dev);
488 u_char __iomem *ramBase = priv->ramBase;
490 /* Disable interrupts & save flags */
491 spin_lock_irqsave(&priv->spinlock, flags);
493 if(!wrqu->nwid.disabled) {
494 domain = wrqu->nwid.value;
495 printk( KERN_DEBUG "Setting domain to 0x%x%02x\n",
496 (domain >> 8) & 0x01, domain & 0xff);
498 writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0);
499 writeb( domain & 0xff, ramBase + NETWAVE_EREG_CB + 1);
500 writeb((domain >>8 ) & 0x01,ramBase + NETWAVE_EREG_CB+2);
501 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
504 /* ReEnable interrupts & restore flags */
505 spin_unlock_irqrestore(&priv->spinlock, flags);
511 * Wireless Handler : get Network ID
513 static int netwave_get_nwid(struct net_device *dev,
514 struct iw_request_info *info,
515 union iwreq_data *wrqu,
518 wrqu->nwid.value = domain;
519 wrqu->nwid.disabled = 0;
520 wrqu->nwid.fixed = 1;
525 * Wireless Handler : set scramble key
527 static int netwave_set_scramble(struct net_device *dev,
528 struct iw_request_info *info,
529 union iwreq_data *wrqu,
533 kio_addr_t iobase = dev->base_addr;
534 netwave_private *priv = netdev_priv(dev);
535 u_char __iomem *ramBase = priv->ramBase;
537 /* Disable interrupts & save flags */
538 spin_lock_irqsave(&priv->spinlock, flags);
540 scramble_key = (key[0] << 8) | key[1];
542 writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0);
543 writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1);
544 writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
545 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
547 /* ReEnable interrupts & restore flags */
548 spin_unlock_irqrestore(&priv->spinlock, flags);
554 * Wireless Handler : get scramble key
556 static int netwave_get_scramble(struct net_device *dev,
557 struct iw_request_info *info,
558 union iwreq_data *wrqu,
561 key[1] = scramble_key & 0xff;
562 key[0] = (scramble_key>>8) & 0xff;
563 wrqu->encoding.flags = IW_ENCODE_ENABLED;
564 wrqu->encoding.length = 2;
569 * Wireless Handler : get mode
571 static int netwave_get_mode(struct net_device *dev,
572 struct iw_request_info *info,
573 union iwreq_data *wrqu,
577 wrqu->mode = IW_MODE_INFRA;
579 wrqu->mode = IW_MODE_ADHOC;
585 * Wireless Handler : get range info
587 static int netwave_get_range(struct net_device *dev,
588 struct iw_request_info *info,
589 union iwreq_data *wrqu,
592 struct iw_range *range = (struct iw_range *) extra;
595 /* Set the length (very important for backward compatibility) */
596 wrqu->data.length = sizeof(struct iw_range);
598 /* Set all the info we don't care or don't know about to zero */
599 memset(range, 0, sizeof(struct iw_range));
601 /* Set the Wireless Extension versions */
602 range->we_version_compiled = WIRELESS_EXT;
603 range->we_version_source = 9; /* Nothing for us in v10 and v11 */
605 /* Set information in the range struct */
606 range->throughput = 450 * 1000; /* don't argue on this ! */
607 range->min_nwid = 0x0000;
608 range->max_nwid = 0x01FF;
610 range->num_channels = range->num_frequency = 0;
612 range->sensitivity = 0x3F;
613 range->max_qual.qual = 255;
614 range->max_qual.level = 255;
615 range->max_qual.noise = 0;
617 range->num_bitrates = 1;
618 range->bitrate[0] = 1000000; /* 1 Mb/s */
620 range->encoding_size[0] = 2; /* 16 bits scrambling */
621 range->num_encoding_sizes = 1;
622 range->max_encoding_tokens = 1; /* Only one key possible */
628 * Wireless Private Handler : get snapshot
630 static int netwave_get_snap(struct net_device *dev,
631 struct iw_request_info *info,
632 union iwreq_data *wrqu,
636 kio_addr_t iobase = dev->base_addr;
637 netwave_private *priv = netdev_priv(dev);
638 u_char __iomem *ramBase = priv->ramBase;
640 /* Disable interrupts & save flags */
641 spin_lock_irqsave(&priv->spinlock, flags);
643 /* Take snapshot of environment */
644 netwave_snapshot( priv, ramBase, iobase);
645 wrqu->data.length = priv->nss.length;
646 memcpy(extra, (u_char *) &priv->nss, sizeof( struct site_survey));
648 priv->lastExec = jiffies;
650 /* ReEnable interrupts & restore flags */
651 spin_unlock_irqrestore(&priv->spinlock, flags);
657 * Structures to export the Wireless Handlers
658 * This is the stuff that are treated the wireless extensions (iwconfig)
661 static const struct iw_priv_args netwave_private_args[] = {
662 /*{ cmd, set_args, get_args, name } */
664 IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof(struct site_survey),
668 static const iw_handler netwave_handler[] =
670 NULL, /* SIOCSIWNAME */
671 netwave_get_name, /* SIOCGIWNAME */
672 netwave_set_nwid, /* SIOCSIWNWID */
673 netwave_get_nwid, /* SIOCGIWNWID */
674 NULL, /* SIOCSIWFREQ */
675 NULL, /* SIOCGIWFREQ */
676 NULL, /* SIOCSIWMODE */
677 netwave_get_mode, /* SIOCGIWMODE */
678 NULL, /* SIOCSIWSENS */
679 NULL, /* SIOCGIWSENS */
680 NULL, /* SIOCSIWRANGE */
681 netwave_get_range, /* SIOCGIWRANGE */
682 NULL, /* SIOCSIWPRIV */
683 NULL, /* SIOCGIWPRIV */
684 NULL, /* SIOCSIWSTATS */
685 NULL, /* SIOCGIWSTATS */
686 NULL, /* SIOCSIWSPY */
687 NULL, /* SIOCGIWSPY */
688 NULL, /* -- hole -- */
689 NULL, /* -- hole -- */
690 NULL, /* SIOCSIWAP */
691 NULL, /* SIOCGIWAP */
692 NULL, /* -- hole -- */
693 NULL, /* SIOCGIWAPLIST */
694 NULL, /* -- hole -- */
695 NULL, /* -- hole -- */
696 NULL, /* SIOCSIWESSID */
697 NULL, /* SIOCGIWESSID */
698 NULL, /* SIOCSIWNICKN */
699 NULL, /* SIOCGIWNICKN */
700 NULL, /* -- hole -- */
701 NULL, /* -- hole -- */
702 NULL, /* SIOCSIWRATE */
703 NULL, /* SIOCGIWRATE */
704 NULL, /* SIOCSIWRTS */
705 NULL, /* SIOCGIWRTS */
706 NULL, /* SIOCSIWFRAG */
707 NULL, /* SIOCGIWFRAG */
708 NULL, /* SIOCSIWTXPOW */
709 NULL, /* SIOCGIWTXPOW */
710 NULL, /* SIOCSIWRETRY */
711 NULL, /* SIOCGIWRETRY */
712 netwave_set_scramble, /* SIOCSIWENCODE */
713 netwave_get_scramble, /* SIOCGIWENCODE */
716 static const iw_handler netwave_private_handler[] =
718 NULL, /* SIOCIWFIRSTPRIV */
719 netwave_get_snap, /* SIOCIWFIRSTPRIV + 1 */
722 static const struct iw_handler_def netwave_handler_def =
724 .num_standard = sizeof(netwave_handler)/sizeof(iw_handler),
725 .num_private = sizeof(netwave_private_handler)/sizeof(iw_handler),
726 .num_private_args = sizeof(netwave_private_args)/sizeof(struct iw_priv_args),
727 .standard = (iw_handler *) netwave_handler,
728 .private = (iw_handler *) netwave_private_handler,
729 .private_args = (struct iw_priv_args *) netwave_private_args,
730 .get_wireless_stats = netwave_get_wireless_stats,
734 * Function netwave_pcmcia_config (link)
736 * netwave_pcmcia_config() is scheduled to run after a CARD_INSERTION
737 * event is received, to configure the PCMCIA socket, and to make the
738 * device available to the system.
742 #define CS_CHECK(fn, ret) \
743 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
745 static void netwave_pcmcia_config(dev_link_t *link) {
746 client_handle_t handle = link->handle;
747 struct net_device *dev = link->priv;
748 netwave_private *priv = netdev_priv(dev);
751 int i, j, last_ret, last_fn;
755 u_char __iomem *ramBase = NULL;
757 DEBUG(0, "netwave_pcmcia_config(0x%p)\n", link);
760 This reads the card's CONFIG tuple to find its configuration
763 tuple.Attributes = 0;
764 tuple.TupleData = (cisdata_t *) buf;
765 tuple.TupleDataMax = 64;
766 tuple.TupleOffset = 0;
767 tuple.DesiredTuple = CISTPL_CONFIG;
768 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
769 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
770 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
771 link->conf.ConfigBase = parse.config.base;
772 link->conf.Present = parse.config.rmask[0];
775 link->state |= DEV_CONFIG;
778 * Try allocating IO ports. This tries a few fixed addresses.
779 * If you want, you can also read the card's config table to
780 * pick addresses -- see the serial driver for an example.
782 for (i = j = 0x0; j < 0x400; j += 0x20) {
783 link->io.BasePort1 = j ^ 0x300;
784 i = pcmcia_request_io(link->handle, &link->io);
785 if (i == CS_SUCCESS) break;
787 if (i != CS_SUCCESS) {
788 cs_error(link->handle, RequestIO, i);
793 * Now allocate an interrupt line. Note that this does not
794 * actually assign a handler to the interrupt.
796 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
799 * This actually configures the PCMCIA socket -- setting up
800 * the I/O windows and the interrupt mapping.
802 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
805 * Allocate a 32K memory window. Note that the dev_link_t
806 * structure provides space for one window handle -- if your
807 * device needs several windows, you'll need to keep track of
808 * the handles in your private data structure, dev->priv.
810 DEBUG(1, "Setting mem speed of %d\n", mem_speed);
812 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
813 req.Base = 0; req.Size = 0x8000;
814 req.AccessSpeed = mem_speed;
815 CS_CHECK(RequestWindow, pcmcia_request_window(&link->handle, &req, &link->win));
816 mem.CardOffset = 0x20000; mem.Page = 0;
817 CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
819 /* Store base address of the common window frame */
820 ramBase = ioremap(req.Base, 0x8000);
821 priv->ramBase = ramBase;
823 dev->irq = link->irq.AssignedIRQ;
824 dev->base_addr = link->io.BasePort1;
825 SET_NETDEV_DEV(dev, &handle_to_dev(handle));
827 if (register_netdev(dev) != 0) {
828 printk(KERN_DEBUG "netwave_cs: register_netdev() failed\n");
832 strcpy(priv->node.dev_name, dev->name);
833 link->dev = &priv->node;
834 link->state &= ~DEV_CONFIG_PENDING;
836 /* Reset card before reading physical address */
837 netwave_doreset(dev->base_addr, ramBase);
839 /* Read the ethernet address and fill in the Netwave registers. */
840 for (i = 0; i < 6; i++)
841 dev->dev_addr[i] = readb(ramBase + NETWAVE_EREG_PA + i);
843 printk(KERN_INFO "%s: Netwave: port %#3lx, irq %d, mem %lx id "
844 "%c%c, hw_addr ", dev->name, dev->base_addr, dev->irq,
845 (u_long) ramBase, (int) readb(ramBase+NETWAVE_EREG_NI),
846 (int) readb(ramBase+NETWAVE_EREG_NI+1));
847 for (i = 0; i < 6; i++)
848 printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n"));
850 /* get revision words */
851 printk(KERN_DEBUG "Netwave_reset: revision %04x %04x\n",
852 get_uint16(ramBase + NETWAVE_EREG_ARW),
853 get_uint16(ramBase + NETWAVE_EREG_ARW+2));
857 cs_error(link->handle, last_fn, last_ret);
859 netwave_release(link);
860 } /* netwave_pcmcia_config */
863 * Function netwave_release (arg)
865 * After a card is removed, netwave_release() will unregister the net
866 * device, and release the PCMCIA configuration. If the device is
867 * still open, this will be postponed until it is closed.
869 static void netwave_release(dev_link_t *link)
871 struct net_device *dev = link->priv;
872 netwave_private *priv = netdev_priv(dev);
874 DEBUG(0, "netwave_release(0x%p)\n", link);
876 pcmcia_disable_device(link->handle);
878 iounmap(priv->ramBase);
881 static int netwave_suspend(struct pcmcia_device *p_dev)
883 dev_link_t *link = dev_to_instance(p_dev);
884 struct net_device *dev = link->priv;
886 if ((link->state & DEV_CONFIG) && (link->open))
887 netif_device_detach(dev);
892 static int netwave_resume(struct pcmcia_device *p_dev)
894 dev_link_t *link = dev_to_instance(p_dev);
895 struct net_device *dev = link->priv;
897 if ((link->state & DEV_CONFIG) && (link->open)) {
899 netif_device_attach(dev);
907 * Function netwave_doreset (ioBase, ramBase)
909 * Proper hardware reset of the card.
911 static void netwave_doreset(kio_addr_t ioBase, u_char __iomem *ramBase)
915 outb(0x80, ioBase + NETWAVE_REG_PMR);
916 writeb(0x08, ramBase + NETWAVE_EREG_ASCC); /* Bit 3 is WOC */
917 outb(0x0, ioBase + NETWAVE_REG_PMR); /* release reset */
921 * Function netwave_reset (dev)
923 * Reset and restore all of the netwave registers
925 static void netwave_reset(struct net_device *dev) {
927 netwave_private *priv = netdev_priv(dev);
928 u_char __iomem *ramBase = priv->ramBase;
929 kio_addr_t iobase = dev->base_addr;
931 DEBUG(0, "netwave_reset: Done with hardware reset\n");
933 priv->timeoutCounter = 0;
936 netwave_doreset(iobase, ramBase);
937 printk(KERN_DEBUG "netwave_reset: Done with hardware reset\n");
939 /* Write a NOP to check the card */
941 writeb(NETWAVE_CMD_NOP, ramBase + NETWAVE_EREG_CB + 0);
942 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
944 /* Set receive conf */
946 writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0);
947 writeb(rxConfRxEna + rxConfBcast, ramBase + NETWAVE_EREG_CB + 1);
948 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
950 /* Set transmit conf */
952 writeb(NETWAVE_CMD_STC, ramBase + NETWAVE_EREG_CB + 0);
953 writeb(txConfTxEna, ramBase + NETWAVE_EREG_CB + 1);
954 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
956 /* Now set the MU Domain */
957 printk(KERN_DEBUG "Setting domain to 0x%x%02x\n", (domain >> 8) & 0x01, domain & 0xff);
959 writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0);
960 writeb(domain & 0xff, ramBase + NETWAVE_EREG_CB + 1);
961 writeb((domain>>8) & 0x01, ramBase + NETWAVE_EREG_CB + 2);
962 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
964 /* Set scramble key */
965 printk(KERN_DEBUG "Setting scramble key to 0x%x\n", scramble_key);
967 writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0);
968 writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1);
969 writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
970 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
972 /* Enable interrupts, bit 4 high to keep unused
973 * source from interrupting us, bit 2 high to
974 * set interrupt enable, 567 to enable TxDN,
978 outb(imrConfIENA+imrConfRFU1, iobase + NETWAVE_REG_IMR);
980 /* Hent 4 bytes fra 0x170. Skal vaere 0a,29,88,36
982 * skriv 80 til d000:3688
983 * sjekk om det ble 80
986 /* Enable Receiver */
988 writeb(NETWAVE_CMD_ER, ramBase + NETWAVE_EREG_CB + 0);
989 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
991 /* Set the IENA bit in COR */
993 outb(corConfIENA + corConfLVLREQ, iobase + NETWAVE_REG_COR);
997 * Function netwave_hw_xmit (data, len, dev)
999 static int netwave_hw_xmit(unsigned char* data, int len,
1000 struct net_device* dev) {
1001 unsigned long flags;
1002 unsigned int TxFreeList,
1008 netwave_private *priv = netdev_priv(dev);
1009 u_char __iomem * ramBase = priv->ramBase;
1010 kio_addr_t iobase = dev->base_addr;
1012 /* Disable interrupts & save flags */
1013 spin_lock_irqsave(&priv->spinlock, flags);
1015 /* Check if there are transmit buffers available */
1017 if ((inb(iobase+NETWAVE_REG_ASR) & NETWAVE_ASR_TXBA) == 0) {
1018 /* No buffers available */
1019 printk(KERN_DEBUG "netwave_hw_xmit: %s - no xmit buffers available.\n",
1021 spin_unlock_irqrestore(&priv->spinlock, flags);
1025 priv->stats.tx_bytes += len;
1027 DEBUG(3, "Transmitting with SPCQ %x SPU %x LIF %x ISPLQ %x\n",
1028 readb(ramBase + NETWAVE_EREG_SPCQ),
1029 readb(ramBase + NETWAVE_EREG_SPU),
1030 readb(ramBase + NETWAVE_EREG_LIF),
1031 readb(ramBase + NETWAVE_EREG_ISPLQ));
1033 /* Now try to insert it into the adapters free memory */
1035 TxFreeList = get_uint16(ramBase + NETWAVE_EREG_TDP);
1036 MaxData = get_uint16(ramBase + NETWAVE_EREG_TDP+2);
1037 DataOffset = get_uint16(ramBase + NETWAVE_EREG_TDP+4);
1039 DEBUG(3, "TxFreeList %x, MaxData %x, DataOffset %x\n",
1040 TxFreeList, MaxData, DataOffset);
1042 /* Copy packet to the adapter fragment buffers */
1043 curBuff = TxFreeList;
1045 while (tmpcount < len) {
1046 int tmplen = len - tmpcount;
1047 copy_to_pc(ramBase + curBuff + DataOffset, data + tmpcount,
1048 (tmplen < MaxData) ? tmplen : MaxData);
1049 tmpcount += MaxData;
1051 /* Advance to next buffer */
1052 curBuff = get_uint16(ramBase + curBuff);
1055 /* Now issue transmit list */
1057 writeb(NETWAVE_CMD_TL, ramBase + NETWAVE_EREG_CB + 0);
1058 writeb(len & 0xff, ramBase + NETWAVE_EREG_CB + 1);
1059 writeb((len>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
1060 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
1062 spin_unlock_irqrestore(&priv->spinlock, flags);
1066 static int netwave_start_xmit(struct sk_buff *skb, struct net_device *dev) {
1067 /* This flag indicate that the hardware can't perform a transmission.
1068 * Theoritically, NET3 check it before sending a packet to the driver,
1069 * but in fact it never do that and pool continuously.
1070 * As the watchdog will abort too long transmissions, we are quite safe...
1073 netif_stop_queue(dev);
1076 short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
1077 unsigned char* buf = skb->data;
1079 if (netwave_hw_xmit( buf, length, dev) == 1) {
1080 /* Some error, let's make them call us another time? */
1081 netif_start_queue(dev);
1083 dev->trans_start = jiffies;
1088 } /* netwave_start_xmit */
1091 * Function netwave_interrupt (irq, dev_id, regs)
1093 * This function is the interrupt handler for the Netwave card. This
1094 * routine will be called whenever:
1095 * 1. A packet is received.
1096 * 2. A packet has successfully been transferred and the unit is
1097 * ready to transmit another packet.
1098 * 3. A command has completed execution.
1100 static irqreturn_t netwave_interrupt(int irq, void* dev_id, struct pt_regs *regs)
1103 u_char __iomem *ramBase;
1104 struct net_device *dev = (struct net_device *)dev_id;
1105 struct netwave_private *priv = netdev_priv(dev);
1106 dev_link_t *link = &priv->link;
1109 if (!netif_device_present(dev))
1112 iobase = dev->base_addr;
1113 ramBase = priv->ramBase;
1115 /* Now find what caused the interrupt, check while interrupts ready */
1116 for (i = 0; i < 10; i++) {
1120 if (!(inb(iobase+NETWAVE_REG_CCSR) & 0x02))
1121 break; /* None of the interrupt sources asserted (normal exit) */
1123 status = inb(iobase + NETWAVE_REG_ASR);
1125 if (!DEV_OK(link)) {
1126 DEBUG(1, "netwave_interrupt: Interrupt with status 0x%x "
1127 "from removed or suspended card!\n", status);
1132 if (status & 0x80) {
1134 /* wait_WOC(iobase); */
1135 /* RxRdy cannot be reset directly by the host */
1138 if (status & 0x40) {
1141 rser = readb(ramBase + NETWAVE_EREG_RSER);
1144 ++priv->stats.rx_dropped;
1145 ++priv->stats.rx_crc_errors;
1148 ++priv->stats.rx_frame_errors;
1150 /* Clear the RxErr bit in RSER. RSER+4 is the
1151 * write part. Also clear the RxCRC (0x04) and
1152 * RxBig (0x02) bits if present */
1154 writeb(0x40 | (rser & 0x06), ramBase + NETWAVE_EREG_RSER + 4);
1156 /* Write bit 6 high to ASCC to clear RxErr in ASR,
1157 * WOC must be set first!
1160 writeb(0x40, ramBase + NETWAVE_EREG_ASCC);
1162 /* Remember to count up priv->stats on error packets */
1163 ++priv->stats.rx_errors;
1166 if (status & 0x20) {
1169 txStatus = readb(ramBase + NETWAVE_EREG_TSER);
1170 DEBUG(3, "Transmit done. TSER = %x id %x\n",
1171 txStatus, readb(ramBase + NETWAVE_EREG_TSER + 1));
1173 if (txStatus & 0x20) {
1174 /* Transmitting was okay, clear bits */
1176 writeb(0x2f, ramBase + NETWAVE_EREG_TSER + 4);
1177 ++priv->stats.tx_packets;
1180 if (txStatus & 0xd0) {
1181 if (txStatus & 0x80) {
1182 ++priv->stats.collisions; /* Because of /proc/net/dev*/
1183 /* ++priv->stats.tx_aborted_errors; */
1184 /* printk("Collision. %ld\n", jiffies - dev->trans_start); */
1186 if (txStatus & 0x40)
1187 ++priv->stats.tx_carrier_errors;
1188 /* 0x80 TxGU Transmit giveup - nine times and no luck
1189 * 0x40 TxNOAP No access point. Discarded packet.
1190 * 0x10 TxErr Transmit error. Always set when
1191 * TxGU and TxNOAP is set. (Those are the only ones
1194 DEBUG(3, "netwave_interrupt: TxDN with error status %x\n",
1197 /* Clear out TxGU, TxNOAP, TxErr and TxTrys */
1199 writeb(0xdf & txStatus, ramBase+NETWAVE_EREG_TSER+4);
1200 ++priv->stats.tx_errors;
1202 DEBUG(3, "New status is TSER %x ASR %x\n",
1203 readb(ramBase + NETWAVE_EREG_TSER),
1204 inb(iobase + NETWAVE_REG_ASR));
1206 netif_wake_queue(dev);
1208 /* TxBA, this would trigger on all error packets received */
1209 /* if (status & 0x01) {
1210 DEBUG(4, "Transmit buffers available, %x\n", status);
1214 /* Handled if we looped at least one time - Jean II */
1215 return IRQ_RETVAL(i);
1216 } /* netwave_interrupt */
1219 * Function netwave_watchdog (a)
1221 * Watchdog : when we start a transmission, we set a timer in the
1222 * kernel. If the transmission complete, this timer is disabled. If
1223 * it expire, we reset the card.
1226 static void netwave_watchdog(struct net_device *dev) {
1228 DEBUG(1, "%s: netwave_watchdog: watchdog timer expired\n", dev->name);
1230 dev->trans_start = jiffies;
1231 netif_wake_queue(dev);
1232 } /* netwave_watchdog */
1234 static struct net_device_stats *netwave_get_stats(struct net_device *dev) {
1235 netwave_private *priv = netdev_priv(dev);
1239 DEBUG(2, "netwave: SPCQ %x SPU %x LIF %x ISPLQ %x MHS %x rxtx %x"
1240 " %x tx %x %x %x %x\n",
1241 readb(priv->ramBase + NETWAVE_EREG_SPCQ),
1242 readb(priv->ramBase + NETWAVE_EREG_SPU),
1243 readb(priv->ramBase + NETWAVE_EREG_LIF),
1244 readb(priv->ramBase + NETWAVE_EREG_ISPLQ),
1245 readb(priv->ramBase + NETWAVE_EREG_MHS),
1246 readb(priv->ramBase + NETWAVE_EREG_EC + 0xe),
1247 readb(priv->ramBase + NETWAVE_EREG_EC + 0xf),
1248 readb(priv->ramBase + NETWAVE_EREG_EC + 0x18),
1249 readb(priv->ramBase + NETWAVE_EREG_EC + 0x19),
1250 readb(priv->ramBase + NETWAVE_EREG_EC + 0x1a),
1251 readb(priv->ramBase + NETWAVE_EREG_EC + 0x1b));
1253 return &priv->stats;
1256 static void update_stats(struct net_device *dev) {
1257 //unsigned long flags;
1258 /* netwave_private *priv = netdev_priv(dev); */
1260 //spin_lock_irqsave(&priv->spinlock, flags);
1262 /* priv->stats.rx_packets = readb(priv->ramBase + 0x18e);
1263 priv->stats.tx_packets = readb(priv->ramBase + 0x18f); */
1265 //spin_unlock_irqrestore(&priv->spinlock, flags);
1268 static int netwave_rx(struct net_device *dev)
1270 netwave_private *priv = netdev_priv(dev);
1271 u_char __iomem *ramBase = priv->ramBase;
1272 kio_addr_t iobase = dev->base_addr;
1274 struct sk_buff *skb = NULL;
1275 unsigned int curBuffer,
1279 int dataCount, dataOffset;
1283 DEBUG(3, "xinw_rx: Receiving ... \n");
1285 /* Receive max 10 packets for now. */
1286 for (i = 0; i < 10; i++) {
1289 rxStatus = readb(ramBase + NETWAVE_EREG_RSER);
1290 if ( !( rxStatus & 0x80)) /* No more packets */
1293 /* Check if multicast/broadcast or other */
1294 /* multicast = (rxStatus & 0x20); */
1296 /* The receive list pointer and length of the packet */
1298 rcvLen = get_int16( ramBase + NETWAVE_EREG_RDP);
1299 rcvList = get_uint16( ramBase + NETWAVE_EREG_RDP + 2);
1302 printk(KERN_DEBUG "netwave_rx: Receive packet with len %d\n",
1307 skb = dev_alloc_skb(rcvLen+5);
1309 DEBUG(1, "netwave_rx: Could not allocate an sk_buff of "
1310 "length %d\n", rcvLen);
1311 ++priv->stats.rx_dropped;
1312 /* Tell the adapter to skip the packet */
1314 writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0);
1315 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
1319 skb_reserve( skb, 2); /* Align IP on 16 byte */
1320 skb_put( skb, rcvLen);
1323 /* Copy packet fragments to the skb data area */
1324 ptr = (u_char*) skb->data;
1325 curBuffer = rcvList;
1327 while ( tmpcount < rcvLen) {
1328 /* Get length and offset of current buffer */
1329 dataCount = get_uint16( ramBase+curBuffer+2);
1330 dataOffset = get_uint16( ramBase+curBuffer+4);
1332 copy_from_pc( ptr + tmpcount,
1333 ramBase+curBuffer+dataOffset, dataCount);
1335 tmpcount += dataCount;
1337 /* Point to next buffer */
1338 curBuffer = get_uint16(ramBase + curBuffer);
1341 skb->protocol = eth_type_trans(skb,dev);
1342 /* Queue packet for network layer */
1345 dev->last_rx = jiffies;
1346 priv->stats.rx_packets++;
1347 priv->stats.rx_bytes += rcvLen;
1349 /* Got the packet, tell the adapter to skip it */
1351 writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0);
1352 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
1353 DEBUG(3, "Packet reception ok\n");
1358 static int netwave_open(struct net_device *dev) {
1359 netwave_private *priv = netdev_priv(dev);
1360 dev_link_t *link = &priv->link;
1362 DEBUG(1, "netwave_open: starting.\n");
1369 netif_start_queue(dev);
1375 static int netwave_close(struct net_device *dev) {
1376 netwave_private *priv = netdev_priv(dev);
1377 dev_link_t *link = &priv->link;
1379 DEBUG(1, "netwave_close: finishing.\n");
1382 netif_stop_queue(dev);
1387 static struct pcmcia_device_id netwave_ids[] = {
1388 PCMCIA_DEVICE_PROD_ID12("Xircom", "CreditCard Netwave", 0x2e3ee845, 0x54e28a28),
1391 MODULE_DEVICE_TABLE(pcmcia, netwave_ids);
1393 static struct pcmcia_driver netwave_driver = {
1394 .owner = THIS_MODULE,
1396 .name = "netwave_cs",
1398 .probe = netwave_attach,
1399 .remove = netwave_detach,
1400 .id_table = netwave_ids,
1401 .suspend = netwave_suspend,
1402 .resume = netwave_resume,
1405 static int __init init_netwave_cs(void)
1407 return pcmcia_register_driver(&netwave_driver);
1410 static void __exit exit_netwave_cs(void)
1412 pcmcia_unregister_driver(&netwave_driver);
1415 module_init(init_netwave_cs);
1416 module_exit(exit_netwave_cs);
1418 /* Set or clear the multicast filter for this adaptor.
1419 num_addrs == -1 Promiscuous mode, receive all packets
1420 num_addrs == 0 Normal mode, clear multicast list
1421 num_addrs > 0 Multicast mode, receive normal and MC packets, and do
1422 best-effort filtering.
1424 static void set_multicast_list(struct net_device *dev)
1426 kio_addr_t iobase = dev->base_addr;
1427 netwave_private *priv = netdev_priv(dev);
1428 u_char __iomem * ramBase = priv->ramBase;
1434 if (old != dev->mc_count) {
1435 old = dev->mc_count;
1436 DEBUG(0, "%s: setting Rx mode to %d addresses.\n",
1437 dev->name, dev->mc_count);
1442 if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) {
1443 /* Multicast Mode */
1444 rcvMode = rxConfRxEna + rxConfAMP + rxConfBcast;
1445 } else if (dev->flags & IFF_PROMISC) {
1446 /* Promiscous mode */
1447 rcvMode = rxConfRxEna + rxConfPro + rxConfAMP + rxConfBcast;
1450 rcvMode = rxConfRxEna + rxConfBcast;
1453 /* printk("netwave set_multicast_list: rcvMode to %x\n", rcvMode);*/
1454 /* Now set receive mode */
1456 writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0);
1457 writeb(rcvMode, ramBase + NETWAVE_EREG_CB + 1);
1458 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
1460 MODULE_LICENSE("GPL");