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 #ifdef CONFIG_NET_RADIO
59 #include <linux/wireless.h>
61 #include <net/iw_handler.h>
62 #endif /* WIRELESS_EXT > 12 */
65 #include <pcmcia/version.h>
66 #include <pcmcia/cs_types.h>
67 #include <pcmcia/cs.h>
68 #include <pcmcia/cistpl.h>
69 #include <pcmcia/cisreg.h>
70 #include <pcmcia/ds.h>
71 #include <pcmcia/mem_op.h>
73 #include <asm/system.h>
77 #define NETWAVE_REGOFF 0x8000
78 /* The Netwave IO registers, offsets to iobase */
79 #define NETWAVE_REG_COR 0x0
80 #define NETWAVE_REG_CCSR 0x2
81 #define NETWAVE_REG_ASR 0x4
82 #define NETWAVE_REG_IMR 0xa
83 #define NETWAVE_REG_PMR 0xc
84 #define NETWAVE_REG_IOLOW 0x6
85 #define NETWAVE_REG_IOHI 0x7
86 #define NETWAVE_REG_IOCONTROL 0x8
87 #define NETWAVE_REG_DATA 0xf
88 /* The Netwave Extended IO registers, offsets to RamBase */
89 #define NETWAVE_EREG_ASCC 0x114
90 #define NETWAVE_EREG_RSER 0x120
91 #define NETWAVE_EREG_RSERW 0x124
92 #define NETWAVE_EREG_TSER 0x130
93 #define NETWAVE_EREG_TSERW 0x134
94 #define NETWAVE_EREG_CB 0x100
95 #define NETWAVE_EREG_SPCQ 0x154
96 #define NETWAVE_EREG_SPU 0x155
97 #define NETWAVE_EREG_LIF 0x14e
98 #define NETWAVE_EREG_ISPLQ 0x156
99 #define NETWAVE_EREG_HHC 0x158
100 #define NETWAVE_EREG_NI 0x16e
101 #define NETWAVE_EREG_MHS 0x16b
102 #define NETWAVE_EREG_TDP 0x140
103 #define NETWAVE_EREG_RDP 0x150
104 #define NETWAVE_EREG_PA 0x160
105 #define NETWAVE_EREG_EC 0x180
106 #define NETWAVE_EREG_CRBP 0x17a
107 #define NETWAVE_EREG_ARW 0x166
110 * Commands used in the extended command buffer
111 * NETWAVE_EREG_CB (0x100-0x10F)
113 #define NETWAVE_CMD_NOP 0x00
114 #define NETWAVE_CMD_SRC 0x01
115 #define NETWAVE_CMD_STC 0x02
116 #define NETWAVE_CMD_AMA 0x03
117 #define NETWAVE_CMD_DMA 0x04
118 #define NETWAVE_CMD_SAMA 0x05
119 #define NETWAVE_CMD_ER 0x06
120 #define NETWAVE_CMD_DR 0x07
121 #define NETWAVE_CMD_TL 0x08
122 #define NETWAVE_CMD_SRP 0x09
123 #define NETWAVE_CMD_SSK 0x0a
124 #define NETWAVE_CMD_SMD 0x0b
125 #define NETWAVE_CMD_SAPD 0x0c
126 #define NETWAVE_CMD_SSS 0x11
127 /* End of Command marker */
128 #define NETWAVE_CMD_EOC 0x00
130 /* ASR register bits */
131 #define NETWAVE_ASR_RXRDY 0x80
132 #define NETWAVE_ASR_TXBA 0x01
134 #define TX_TIMEOUT ((32*HZ)/100)
136 static const unsigned int imrConfRFU1 = 0x10; /* RFU interrupt mask, keep high */
137 static const unsigned int imrConfIENA = 0x02; /* Interrupt enable */
139 static const unsigned int corConfIENA = 0x01; /* Interrupt enable */
140 static const unsigned int corConfLVLREQ = 0x40; /* Keep high */
142 static const unsigned int rxConfRxEna = 0x80; /* Receive Enable */
143 static const unsigned int rxConfMAC = 0x20; /* MAC host receive mode*/
144 static const unsigned int rxConfPro = 0x10; /* Promiscuous */
145 static const unsigned int rxConfAMP = 0x08; /* Accept Multicast Packets */
146 static const unsigned int rxConfBcast = 0x04; /* Accept Broadcast Packets */
148 static const unsigned int txConfTxEna = 0x80; /* Transmit Enable */
149 static const unsigned int txConfMAC = 0x20; /* Host sends MAC mode */
150 static const unsigned int txConfEUD = 0x10; /* Enable Uni-Data packets */
151 static const unsigned int txConfKey = 0x02; /* Scramble data packets */
152 static const unsigned int txConfLoop = 0x01; /* Loopback mode */
155 All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
156 you do not define PCMCIA_DEBUG at all, all the debug code will be
157 left out. If you compile with PCMCIA_DEBUG=0, the debug code will
158 be present but disabled -- but it can then be enabled for specific
159 modules at load time with a 'pc_debug=#' option to insmod.
163 static int pc_debug = PCMCIA_DEBUG;
164 module_param(pc_debug, int, 0);
165 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
166 static char *version =
167 "netwave_cs.c 0.3.0 Thu Jul 17 14:36:02 1997 (John Markus Bjørndalen)\n";
169 #define DEBUG(n, args...)
172 static dev_info_t dev_info = "netwave_cs";
174 /*====================================================================*/
176 /* Parameters that can be set with 'insmod' */
178 /* Choose the domain, default is 0x100 */
179 static u_int domain = 0x100;
181 /* Scramble key, range from 0x0 to 0xffff.
182 * 0x0 is no scrambling.
184 static u_int scramble_key = 0x0;
186 /* Shared memory speed, in ns. The documentation states that
187 * the card should not be read faster than every 400ns.
188 * This timing should be provided by the HBA. If it becomes a
189 * problem, try setting mem_speed to 400.
191 static int mem_speed;
193 module_param(domain, int, 0);
194 module_param(scramble_key, int, 0);
195 module_param(mem_speed, int, 0);
197 /*====================================================================*/
199 /* PCMCIA (Card Services) related functions */
200 static void netwave_release(dev_link_t *link); /* Card removal */
201 static int netwave_event(event_t event, int priority,
202 event_callback_args_t *args);
203 static void netwave_pcmcia_config(dev_link_t *arg); /* Runs after card
205 static dev_link_t *netwave_attach(void); /* Create instance */
206 static void netwave_detach(dev_link_t *); /* Destroy instance */
208 /* Hardware configuration */
209 static void netwave_doreset(kio_addr_t iobase, u_char __iomem *ramBase);
210 static void netwave_reset(struct net_device *dev);
212 /* Misc device stuff */
213 static int netwave_open(struct net_device *dev); /* Open the device */
214 static int netwave_close(struct net_device *dev); /* Close the device */
216 /* Packet transmission and Packet reception */
217 static int netwave_start_xmit( struct sk_buff *skb, struct net_device *dev);
218 static int netwave_rx( struct net_device *dev);
220 /* Interrupt routines */
221 static irqreturn_t netwave_interrupt(int irq, void *dev_id, struct pt_regs *regs);
222 static void netwave_watchdog(struct net_device *);
225 static void update_stats(struct net_device *dev);
226 static struct net_device_stats *netwave_get_stats(struct net_device *dev);
228 /* Wireless extensions */
230 static struct iw_statistics* netwave_get_wireless_stats(struct net_device *dev);
232 static int netwave_ioctl(struct net_device *, struct ifreq *, int);
234 static void set_multicast_list(struct net_device *dev);
237 A linked list of "instances" of the skeleton device. Each actual
238 PCMCIA card corresponds to one device instance, and is described
239 by one dev_link_t structure (defined in ds.h).
241 You may not want to use a linked list for this -- for example, the
242 memory card driver uses an array of dev_link_t pointers, where minor
243 device numbers are used to derive the corresponding array index.
245 static dev_link_t *dev_list;
248 A dev_link_t structure has fields for most things that are needed
249 to keep track of a socket, but there will usually be some device
250 specific information that also needs to be kept track of. The
251 'priv' pointer in a dev_link_t structure can be used to point to
252 a device-specific private data structure, like this.
254 A driver needs to provide a dev_node_t structure for each device
255 on a card. In some cases, there is only one device per card (for
256 example, ethernet cards, modems). In other cases, there may be
257 many actual or logical devices (SCSI adapters, memory cards with
258 multiple partitions). The dev_node_t structures need to be kept
259 in a linked list starting at the 'dev' field of a dev_link_t
260 structure. We allocate them in the card's private data structure,
261 because they generally can't be allocated dynamically.
264 #if WIRELESS_EXT <= 12
265 /* Wireless extensions backward compatibility */
267 /* Part of iw_handler prototype we need */
268 struct iw_request_info
270 __u16 cmd; /* Wireless Extension command */
271 __u16 flags; /* More to come ;-) */
274 /* Wireless Extension Backward compatibility - Jean II
275 * If the new wireless device private ioctl range is not defined,
276 * default to standard device private ioctl range */
277 #ifndef SIOCIWFIRSTPRIV
278 #define SIOCIWFIRSTPRIV SIOCDEVPRIVATE
279 #endif /* SIOCIWFIRSTPRIV */
281 #else /* WIRELESS_EXT <= 12 */
282 static const struct iw_handler_def netwave_handler_def;
283 #endif /* WIRELESS_EXT <= 12 */
285 #define SIOCGIPSNAP SIOCIWFIRSTPRIV + 1 /* Site Survey Snapshot */
289 typedef struct net_addr {
295 u_char struct_revision;
296 u_char roaming_state;
298 u_char sp_existsFlag;
299 u_char sp_link_quality;
300 u_char sp_max_link_quality;
301 u_char linkQualityGoodFairBoundary;
302 u_char linkQualityFairPoorBoundary;
303 u_char sp_utilization;
305 u_char sp_hotheadcount;
306 u_char roaming_condition;
310 net_addr nearByAccessPoints[MAX_ESA];
313 typedef struct netwave_private {
315 spinlock_t spinlock; /* Serialize access to the hardware (SMP) */
317 u_char __iomem *ramBase;
320 struct timer_list watchdog; /* To avoid blocking state */
321 struct site_survey nss;
322 struct net_device_stats stats;
324 struct iw_statistics iw_stats; /* Wireless stats */
329 static struct net_device_stats *netwave_get_stats(struct net_device *dev);
333 * The Netwave card is little-endian, so won't work for big endian
336 static inline unsigned short get_uint16(u_char __iomem *staddr)
338 return readw(staddr); /* Return only 16 bits */
341 static inline short get_int16(u_char __iomem * staddr)
343 return readw(staddr);
347 * Wait until the WOC (Write Operation Complete) bit in the
348 * ASR (Adapter Status Register) is asserted.
349 * This should have aborted if it takes too long time.
351 static inline void wait_WOC(unsigned int iobase)
354 while ((inb(iobase + NETWAVE_REG_ASR) & 0x8) != 0x8) ;
358 static void netwave_snapshot(netwave_private *priv, u_char __iomem *ramBase,
360 u_short resultBuffer;
362 /* if time since last snapshot is > 1 sec. (100 jiffies?) then take
363 * new snapshot, else return cached data. This is the recommended rate.
365 if ( jiffies - priv->lastExec > 100) {
366 /* Take site survey snapshot */
367 /*printk( KERN_DEBUG "Taking new snapshot. %ld\n", jiffies -
370 writeb(NETWAVE_CMD_SSS, ramBase + NETWAVE_EREG_CB + 0);
371 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
374 /* Get result and copy to cach */
375 resultBuffer = readw(ramBase + NETWAVE_EREG_CRBP);
376 copy_from_pc( &priv->nss, ramBase+resultBuffer,
377 sizeof(struct site_survey));
384 * Function netwave_get_wireless_stats (dev)
386 * Wireless extensions statistics
389 static struct iw_statistics *netwave_get_wireless_stats(struct net_device *dev)
392 kio_addr_t iobase = dev->base_addr;
393 netwave_private *priv = netdev_priv(dev);
394 u_char __iomem *ramBase = priv->ramBase;
395 struct iw_statistics* wstats;
397 wstats = &priv->iw_stats;
399 spin_lock_irqsave(&priv->spinlock, flags);
401 netwave_snapshot( priv, ramBase, iobase);
403 wstats->status = priv->nss.roaming_state;
404 wstats->qual.qual = readb( ramBase + NETWAVE_EREG_SPCQ);
405 wstats->qual.level = readb( ramBase + NETWAVE_EREG_ISPLQ);
406 wstats->qual.noise = readb( ramBase + NETWAVE_EREG_SPU) & 0x3f;
407 wstats->discard.nwid = 0L;
408 wstats->discard.code = 0L;
409 wstats->discard.misc = 0L;
411 spin_unlock_irqrestore(&priv->spinlock, flags);
413 return &priv->iw_stats;
418 * Function netwave_attach (void)
420 * Creates an "instance" of the driver, allocating local data
421 * structures for one device. The device is registered with Card
424 * The dev_link structure is initialized, but we don't actually
425 * configure the card at this point -- we wait until we receive a
426 * card insertion event.
428 static dev_link_t *netwave_attach(void)
430 client_reg_t client_reg;
432 struct net_device *dev;
433 netwave_private *priv;
436 DEBUG(0, "netwave_attach()\n");
438 /* Initialize the dev_link_t structure */
439 dev = alloc_etherdev(sizeof(netwave_private));
442 priv = netdev_priv(dev);
446 /* The io structure describes IO port mapping */
447 link->io.NumPorts1 = 16;
448 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
449 /* link->io.NumPorts2 = 16;
450 link->io.Attributes2 = IO_DATA_PATH_WIDTH_16; */
451 link->io.IOAddrLines = 5;
453 /* Interrupt setup */
454 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
455 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
456 link->irq.Handler = &netwave_interrupt;
458 /* General socket configuration */
459 link->conf.Attributes = CONF_ENABLE_IRQ;
461 link->conf.IntType = INT_MEMORY_AND_IO;
462 link->conf.ConfigIndex = 1;
463 link->conf.Present = PRESENT_OPTION;
465 /* Netwave private struct init. link/dev/node already taken care of,
466 * other stuff zero'd - Jean II */
467 spin_lock_init(&priv->spinlock);
469 /* Netwave specific entries in the device structure */
470 SET_MODULE_OWNER(dev);
471 dev->hard_start_xmit = &netwave_start_xmit;
472 dev->get_stats = &netwave_get_stats;
473 dev->set_multicast_list = &set_multicast_list;
474 /* wireless extensions */
476 dev->get_wireless_stats = &netwave_get_wireless_stats;
477 #if WIRELESS_EXT > 12
478 dev->wireless_handlers = (struct iw_handler_def *)&netwave_handler_def;
479 #endif /* WIRELESS_EXT > 12 */
480 #endif /* WIRELESS_EXT */
481 dev->do_ioctl = &netwave_ioctl;
483 dev->tx_timeout = &netwave_watchdog;
484 dev->watchdog_timeo = TX_TIMEOUT;
486 dev->open = &netwave_open;
487 dev->stop = &netwave_close;
488 link->irq.Instance = dev;
490 /* Register with Card Services */
491 link->next = dev_list;
493 client_reg.dev_info = &dev_info;
494 client_reg.EventMask =
495 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
496 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
497 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
498 client_reg.event_handler = &netwave_event;
499 client_reg.Version = 0x0210;
500 client_reg.event_callback_args.client_data = link;
501 ret = pcmcia_register_client(&link->handle, &client_reg);
503 cs_error(link->handle, RegisterClient, ret);
504 netwave_detach(link);
509 } /* netwave_attach */
512 * Function netwave_detach (link)
514 * This deletes a driver "instance". The device is de-registered
515 * with Card Services. If it has been released, all local data
516 * structures are freed. Otherwise, the structures will be freed
517 * when the device is released.
519 static void netwave_detach(dev_link_t *link)
521 struct net_device *dev = link->priv;
524 DEBUG(0, "netwave_detach(0x%p)\n", link);
527 If the device is currently configured and active, we won't
528 actually delete it yet. Instead, it is marked so that when
529 the release() function is called, that will trigger a proper
532 if (link->state & DEV_CONFIG)
533 netwave_release(link);
535 /* Break the link with Card Services */
537 pcmcia_deregister_client(link->handle);
539 /* Locate device structure */
540 for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
541 if (*linkp == link) break;
544 DEBUG(1, "netwave_cs: detach fail, '%s' not in list\n",
545 link->dev->dev_name);
549 /* Unlink device structure, free pieces */
552 unregister_netdev(dev);
555 } /* netwave_detach */
558 * Wireless Handler : get protocol name
560 static int netwave_get_name(struct net_device *dev,
561 struct iw_request_info *info,
562 union iwreq_data *wrqu,
565 strcpy(wrqu->name, "Netwave");
570 * Wireless Handler : set Network ID
572 static int netwave_set_nwid(struct net_device *dev,
573 struct iw_request_info *info,
574 union iwreq_data *wrqu,
578 kio_addr_t iobase = dev->base_addr;
579 netwave_private *priv = netdev_priv(dev);
580 u_char __iomem *ramBase = priv->ramBase;
582 /* Disable interrupts & save flags */
583 spin_lock_irqsave(&priv->spinlock, flags);
586 if(!wrqu->nwid.disabled) {
587 domain = wrqu->nwid.value;
588 #else /* WIRELESS_EXT > 8 */
590 domain = wrqu->nwid.nwid;
591 #endif /* WIRELESS_EXT > 8 */
592 printk( KERN_DEBUG "Setting domain to 0x%x%02x\n",
593 (domain >> 8) & 0x01, domain & 0xff);
595 writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0);
596 writeb( domain & 0xff, ramBase + NETWAVE_EREG_CB + 1);
597 writeb((domain >>8 ) & 0x01,ramBase + NETWAVE_EREG_CB+2);
598 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
601 /* ReEnable interrupts & restore flags */
602 spin_unlock_irqrestore(&priv->spinlock, flags);
608 * Wireless Handler : get Network ID
610 static int netwave_get_nwid(struct net_device *dev,
611 struct iw_request_info *info,
612 union iwreq_data *wrqu,
616 wrqu->nwid.value = domain;
617 wrqu->nwid.disabled = 0;
618 wrqu->nwid.fixed = 1;
619 #else /* WIRELESS_EXT > 8 */
620 wrqu->nwid.nwid = domain;
622 #endif /* WIRELESS_EXT > 8 */
628 * Wireless Handler : set scramble key
630 static int netwave_set_scramble(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 scramble_key = (key[0] << 8) | key[1];
645 writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0);
646 writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1);
647 writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
648 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
650 /* ReEnable interrupts & restore flags */
651 spin_unlock_irqrestore(&priv->spinlock, flags);
657 * Wireless Handler : get scramble key
659 static int netwave_get_scramble(struct net_device *dev,
660 struct iw_request_info *info,
661 union iwreq_data *wrqu,
664 key[1] = scramble_key & 0xff;
665 key[0] = (scramble_key>>8) & 0xff;
667 wrqu->encoding.flags = IW_ENCODE_ENABLED;
668 wrqu->encoding.length = 2;
669 #else /* WIRELESS_EXT > 8 */
670 wrqu->encoding.method = 1;
671 #endif /* WIRELESS_EXT > 8 */
678 * Wireless Handler : get mode
680 static int netwave_get_mode(struct net_device *dev,
681 struct iw_request_info *info,
682 union iwreq_data *wrqu,
686 wrqu->mode = IW_MODE_INFRA;
688 wrqu->mode = IW_MODE_ADHOC;
692 #endif /* WIRELESS_EXT > 8 */
695 * Wireless Handler : get range info
697 static int netwave_get_range(struct net_device *dev,
698 struct iw_request_info *info,
699 union iwreq_data *wrqu,
702 struct iw_range *range = (struct iw_range *) extra;
705 /* Set the length (very important for backward compatibility) */
706 wrqu->data.length = sizeof(struct iw_range);
708 /* Set all the info we don't care or don't know about to zero */
709 memset(range, 0, sizeof(struct iw_range));
711 #if WIRELESS_EXT > 10
712 /* Set the Wireless Extension versions */
713 range->we_version_compiled = WIRELESS_EXT;
714 range->we_version_source = 9; /* Nothing for us in v10 and v11 */
715 #endif /* WIRELESS_EXT > 10 */
717 /* Set information in the range struct */
718 range->throughput = 450 * 1000; /* don't argue on this ! */
719 range->min_nwid = 0x0000;
720 range->max_nwid = 0x01FF;
722 range->num_channels = range->num_frequency = 0;
724 range->sensitivity = 0x3F;
725 range->max_qual.qual = 255;
726 range->max_qual.level = 255;
727 range->max_qual.noise = 0;
730 range->num_bitrates = 1;
731 range->bitrate[0] = 1000000; /* 1 Mb/s */
732 #endif /* WIRELESS_EXT > 7 */
735 range->encoding_size[0] = 2; /* 16 bits scrambling */
736 range->num_encoding_sizes = 1;
737 range->max_encoding_tokens = 1; /* Only one key possible */
738 #endif /* WIRELESS_EXT > 8 */
744 * Wireless Private Handler : get snapshot
746 static int netwave_get_snap(struct net_device *dev,
747 struct iw_request_info *info,
748 union iwreq_data *wrqu,
752 kio_addr_t iobase = dev->base_addr;
753 netwave_private *priv = netdev_priv(dev);
754 u_char __iomem *ramBase = priv->ramBase;
756 /* Disable interrupts & save flags */
757 spin_lock_irqsave(&priv->spinlock, flags);
759 /* Take snapshot of environment */
760 netwave_snapshot( priv, ramBase, iobase);
761 wrqu->data.length = priv->nss.length;
762 memcpy(extra, (u_char *) &priv->nss, sizeof( struct site_survey));
764 priv->lastExec = jiffies;
766 /* ReEnable interrupts & restore flags */
767 spin_unlock_irqrestore(&priv->spinlock, flags);
773 * Structures to export the Wireless Handlers
774 * This is the stuff that are treated the wireless extensions (iwconfig)
777 static const struct iw_priv_args netwave_private_args[] = {
778 /*{ cmd, set_args, get_args, name } */
780 IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof(struct site_survey),
784 #if WIRELESS_EXT > 12
786 static const iw_handler netwave_handler[] =
788 NULL, /* SIOCSIWNAME */
789 netwave_get_name, /* SIOCGIWNAME */
790 netwave_set_nwid, /* SIOCSIWNWID */
791 netwave_get_nwid, /* SIOCGIWNWID */
792 NULL, /* SIOCSIWFREQ */
793 NULL, /* SIOCGIWFREQ */
794 NULL, /* SIOCSIWMODE */
795 netwave_get_mode, /* SIOCGIWMODE */
796 NULL, /* SIOCSIWSENS */
797 NULL, /* SIOCGIWSENS */
798 NULL, /* SIOCSIWRANGE */
799 netwave_get_range, /* SIOCGIWRANGE */
800 NULL, /* SIOCSIWPRIV */
801 NULL, /* SIOCGIWPRIV */
802 NULL, /* SIOCSIWSTATS */
803 NULL, /* SIOCGIWSTATS */
804 NULL, /* SIOCSIWSPY */
805 NULL, /* SIOCGIWSPY */
806 NULL, /* -- hole -- */
807 NULL, /* -- hole -- */
808 NULL, /* SIOCSIWAP */
809 NULL, /* SIOCGIWAP */
810 NULL, /* -- hole -- */
811 NULL, /* SIOCGIWAPLIST */
812 NULL, /* -- hole -- */
813 NULL, /* -- hole -- */
814 NULL, /* SIOCSIWESSID */
815 NULL, /* SIOCGIWESSID */
816 NULL, /* SIOCSIWNICKN */
817 NULL, /* SIOCGIWNICKN */
818 NULL, /* -- hole -- */
819 NULL, /* -- hole -- */
820 NULL, /* SIOCSIWRATE */
821 NULL, /* SIOCGIWRATE */
822 NULL, /* SIOCSIWRTS */
823 NULL, /* SIOCGIWRTS */
824 NULL, /* SIOCSIWFRAG */
825 NULL, /* SIOCGIWFRAG */
826 NULL, /* SIOCSIWTXPOW */
827 NULL, /* SIOCGIWTXPOW */
828 NULL, /* SIOCSIWRETRY */
829 NULL, /* SIOCGIWRETRY */
830 netwave_set_scramble, /* SIOCSIWENCODE */
831 netwave_get_scramble, /* SIOCGIWENCODE */
834 static const iw_handler netwave_private_handler[] =
836 NULL, /* SIOCIWFIRSTPRIV */
837 netwave_get_snap, /* SIOCIWFIRSTPRIV + 1 */
840 static const struct iw_handler_def netwave_handler_def =
842 .num_standard = sizeof(netwave_handler)/sizeof(iw_handler),
843 .num_private = sizeof(netwave_private_handler)/sizeof(iw_handler),
844 .num_private_args = sizeof(netwave_private_args)/sizeof(struct iw_priv_args),
845 .standard = (iw_handler *) netwave_handler,
846 .private = (iw_handler *) netwave_private_handler,
847 .private_args = (struct iw_priv_args *) netwave_private_args,
849 #endif /* WIRELESS_EXT > 12 */
852 * Function netwave_ioctl (dev, rq, cmd)
854 * Perform ioctl : config & info stuff
855 * This is the stuff that are treated the wireless extensions (iwconfig)
858 static int netwave_ioctl(struct net_device *dev, /* ioctl device */
859 struct ifreq *rq, /* Data passed */
860 int cmd) /* Ioctl number */
864 #if WIRELESS_EXT <= 12
865 struct iwreq *wrq = (struct iwreq *) rq;
869 DEBUG(0, "%s: ->netwave_ioctl(cmd=0x%X)\n", dev->name, cmd);
871 /* Look what is the request */
873 /* --------------- WIRELESS EXTENSIONS --------------- */
875 #if WIRELESS_EXT <= 12
877 netwave_get_name(dev, NULL, &(wrq->u), NULL);
880 ret = netwave_set_nwid(dev, NULL, &(wrq->u), NULL);
883 ret = netwave_get_nwid(dev, NULL, &(wrq->u), NULL);
885 #if WIRELESS_EXT > 8 /* Note : The API did change... */
887 /* Get scramble key */
888 if(wrq->u.encoding.pointer != (caddr_t) 0)
891 ret = netwave_get_scramble(dev, NULL, &(wrq->u), key);
892 if(copy_to_user(wrq->u.encoding.pointer, key, 2))
897 /* Set scramble key */
898 if(wrq->u.encoding.pointer != (caddr_t) 0)
901 if(copy_from_user(key, wrq->u.encoding.pointer, 2))
906 ret = netwave_set_scramble(dev, NULL, &(wrq->u), key);
910 /* Mode of operation */
911 ret = netwave_get_mode(dev, NULL, &(wrq->u), NULL);
913 #else /* WIRELESS_EXT > 8 */
915 /* Get scramble key */
916 ret = netwave_get_scramble(dev, NULL, &(wrq->u),
917 (char *) &wrq->u.encoding.code);
920 /* Set scramble key */
921 ret = netwave_set_scramble(dev, NULL, &(wrq->u),
922 (char *) &wrq->u.encoding.code);
924 #endif /* WIRELESS_EXT > 8 */
926 /* Basic checking... */
927 if(wrq->u.data.pointer != (caddr_t) 0) {
928 struct iw_range range;
929 ret = netwave_get_range(dev, NULL, &(wrq->u), (char *) &range);
930 if (copy_to_user(wrq->u.data.pointer, &range,
931 sizeof(struct iw_range)))
936 /* Basic checking... */
937 if(wrq->u.data.pointer != (caddr_t) 0) {
938 /* Set the number of ioctl available */
939 wrq->u.data.length = sizeof(netwave_private_args) / sizeof(netwave_private_args[0]);
941 /* Copy structure to the user buffer */
942 if(copy_to_user(wrq->u.data.pointer,
943 (u_char *) netwave_private_args,
944 sizeof(netwave_private_args)))
949 if(wrq->u.data.pointer != (caddr_t) 0) {
950 char buffer[sizeof( struct site_survey)];
951 ret = netwave_get_snap(dev, NULL, &(wrq->u), buffer);
952 /* Copy structure to the user buffer */
953 if(copy_to_user(wrq->u.data.pointer,
955 sizeof( struct site_survey)))
957 printk(KERN_DEBUG "Bad buffer!\n");
962 #endif /* WIRELESS_EXT <= 12 */
963 #endif /* WIRELESS_EXT */
972 * Function netwave_pcmcia_config (link)
974 * netwave_pcmcia_config() is scheduled to run after a CARD_INSERTION
975 * event is received, to configure the PCMCIA socket, and to make the
976 * device available to the system.
980 #define CS_CHECK(fn, ret) \
981 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
983 static void netwave_pcmcia_config(dev_link_t *link) {
984 client_handle_t handle = link->handle;
985 struct net_device *dev = link->priv;
986 netwave_private *priv = netdev_priv(dev);
989 int i, j, last_ret, last_fn;
993 u_char __iomem *ramBase = NULL;
995 DEBUG(0, "netwave_pcmcia_config(0x%p)\n", link);
998 This reads the card's CONFIG tuple to find its configuration
1001 tuple.Attributes = 0;
1002 tuple.TupleData = (cisdata_t *) buf;
1003 tuple.TupleDataMax = 64;
1004 tuple.TupleOffset = 0;
1005 tuple.DesiredTuple = CISTPL_CONFIG;
1006 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
1007 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
1008 CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
1009 link->conf.ConfigBase = parse.config.base;
1010 link->conf.Present = parse.config.rmask[0];
1012 /* Configure card */
1013 link->state |= DEV_CONFIG;
1016 * Try allocating IO ports. This tries a few fixed addresses.
1017 * If you want, you can also read the card's config table to
1018 * pick addresses -- see the serial driver for an example.
1020 for (i = j = 0x0; j < 0x400; j += 0x20) {
1021 link->io.BasePort1 = j ^ 0x300;
1022 i = pcmcia_request_io(link->handle, &link->io);
1023 if (i == CS_SUCCESS) break;
1025 if (i != CS_SUCCESS) {
1026 cs_error(link->handle, RequestIO, i);
1031 * Now allocate an interrupt line. Note that this does not
1032 * actually assign a handler to the interrupt.
1034 CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
1037 * This actually configures the PCMCIA socket -- setting up
1038 * the I/O windows and the interrupt mapping.
1040 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
1043 * Allocate a 32K memory window. Note that the dev_link_t
1044 * structure provides space for one window handle -- if your
1045 * device needs several windows, you'll need to keep track of
1046 * the handles in your private data structure, dev->priv.
1048 DEBUG(1, "Setting mem speed of %d\n", mem_speed);
1050 req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_CM|WIN_ENABLE;
1051 req.Base = 0; req.Size = 0x8000;
1052 req.AccessSpeed = mem_speed;
1053 CS_CHECK(RequestWindow, pcmcia_request_window(&link->handle, &req, &link->win));
1054 mem.CardOffset = 0x20000; mem.Page = 0;
1055 CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem));
1057 /* Store base address of the common window frame */
1058 ramBase = ioremap(req.Base, 0x8000);
1059 priv->ramBase = ramBase;
1061 dev->irq = link->irq.AssignedIRQ;
1062 dev->base_addr = link->io.BasePort1;
1063 SET_NETDEV_DEV(dev, &handle_to_dev(handle));
1065 if (register_netdev(dev) != 0) {
1066 printk(KERN_DEBUG "netwave_cs: register_netdev() failed\n");
1070 strcpy(priv->node.dev_name, dev->name);
1071 link->dev = &priv->node;
1072 link->state &= ~DEV_CONFIG_PENDING;
1074 /* Reset card before reading physical address */
1075 netwave_doreset(dev->base_addr, ramBase);
1077 /* Read the ethernet address and fill in the Netwave registers. */
1078 for (i = 0; i < 6; i++)
1079 dev->dev_addr[i] = readb(ramBase + NETWAVE_EREG_PA + i);
1081 printk(KERN_INFO "%s: Netwave: port %#3lx, irq %d, mem %lx id "
1082 "%c%c, hw_addr ", dev->name, dev->base_addr, dev->irq,
1083 (u_long) ramBase, (int) readb(ramBase+NETWAVE_EREG_NI),
1084 (int) readb(ramBase+NETWAVE_EREG_NI+1));
1085 for (i = 0; i < 6; i++)
1086 printk("%02X%s", dev->dev_addr[i], ((i<5) ? ":" : "\n"));
1088 /* get revision words */
1089 printk(KERN_DEBUG "Netwave_reset: revision %04x %04x\n",
1090 get_uint16(ramBase + NETWAVE_EREG_ARW),
1091 get_uint16(ramBase + NETWAVE_EREG_ARW+2));
1095 cs_error(link->handle, last_fn, last_ret);
1097 netwave_release(link);
1098 } /* netwave_pcmcia_config */
1101 * Function netwave_release (arg)
1103 * After a card is removed, netwave_release() will unregister the net
1104 * device, and release the PCMCIA configuration. If the device is
1105 * still open, this will be postponed until it is closed.
1107 static void netwave_release(dev_link_t *link)
1109 struct net_device *dev = link->priv;
1110 netwave_private *priv = netdev_priv(dev);
1112 DEBUG(0, "netwave_release(0x%p)\n", link);
1114 /* Don't bother checking to see if these succeed or not */
1116 iounmap(priv->ramBase);
1117 pcmcia_release_window(link->win);
1119 pcmcia_release_configuration(link->handle);
1120 pcmcia_release_io(link->handle, &link->io);
1121 pcmcia_release_irq(link->handle, &link->irq);
1123 link->state &= ~DEV_CONFIG;
1127 * Function netwave_event (event, priority, args)
1129 * The card status event handler. Mostly, this schedules other
1130 * stuff to run after an event is received. A CARD_REMOVAL event
1131 * also sets some flags to discourage the net drivers from trying
1132 * to talk to the card any more.
1134 * When a CARD_REMOVAL event is received, we immediately set a flag
1135 * to block future accesses to this device. All the functions that
1136 * actually access the device should check this flag to make sure
1137 * the card is still present.
1140 static int netwave_event(event_t event, int priority,
1141 event_callback_args_t *args)
1143 dev_link_t *link = args->client_data;
1144 struct net_device *dev = link->priv;
1146 DEBUG(1, "netwave_event(0x%06x)\n", event);
1149 case CS_EVENT_REGISTRATION_COMPLETE:
1150 DEBUG(0, "netwave_cs: registration complete\n");
1153 case CS_EVENT_CARD_REMOVAL:
1154 link->state &= ~DEV_PRESENT;
1155 if (link->state & DEV_CONFIG) {
1156 netif_device_detach(dev);
1157 netwave_release(link);
1160 case CS_EVENT_CARD_INSERTION:
1161 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
1162 netwave_pcmcia_config( link);
1164 case CS_EVENT_PM_SUSPEND:
1165 link->state |= DEV_SUSPEND;
1166 /* Fall through... */
1167 case CS_EVENT_RESET_PHYSICAL:
1168 if (link->state & DEV_CONFIG) {
1170 netif_device_detach(dev);
1171 pcmcia_release_configuration(link->handle);
1174 case CS_EVENT_PM_RESUME:
1175 link->state &= ~DEV_SUSPEND;
1176 /* Fall through... */
1177 case CS_EVENT_CARD_RESET:
1178 if (link->state & DEV_CONFIG) {
1179 pcmcia_request_configuration(link->handle, &link->conf);
1182 netif_device_attach(dev);
1188 } /* netwave_event */
1191 * Function netwave_doreset (ioBase, ramBase)
1193 * Proper hardware reset of the card.
1195 static void netwave_doreset(kio_addr_t ioBase, u_char __iomem *ramBase)
1199 outb(0x80, ioBase + NETWAVE_REG_PMR);
1200 writeb(0x08, ramBase + NETWAVE_EREG_ASCC); /* Bit 3 is WOC */
1201 outb(0x0, ioBase + NETWAVE_REG_PMR); /* release reset */
1205 * Function netwave_reset (dev)
1207 * Reset and restore all of the netwave registers
1209 static void netwave_reset(struct net_device *dev) {
1211 netwave_private *priv = netdev_priv(dev);
1212 u_char __iomem *ramBase = priv->ramBase;
1213 kio_addr_t iobase = dev->base_addr;
1215 DEBUG(0, "netwave_reset: Done with hardware reset\n");
1217 priv->timeoutCounter = 0;
1220 netwave_doreset(iobase, ramBase);
1221 printk(KERN_DEBUG "netwave_reset: Done with hardware reset\n");
1223 /* Write a NOP to check the card */
1225 writeb(NETWAVE_CMD_NOP, ramBase + NETWAVE_EREG_CB + 0);
1226 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
1228 /* Set receive conf */
1230 writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0);
1231 writeb(rxConfRxEna + rxConfBcast, ramBase + NETWAVE_EREG_CB + 1);
1232 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
1234 /* Set transmit conf */
1236 writeb(NETWAVE_CMD_STC, ramBase + NETWAVE_EREG_CB + 0);
1237 writeb(txConfTxEna, ramBase + NETWAVE_EREG_CB + 1);
1238 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
1240 /* Now set the MU Domain */
1241 printk(KERN_DEBUG "Setting domain to 0x%x%02x\n", (domain >> 8) & 0x01, domain & 0xff);
1243 writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0);
1244 writeb(domain & 0xff, ramBase + NETWAVE_EREG_CB + 1);
1245 writeb((domain>>8) & 0x01, ramBase + NETWAVE_EREG_CB + 2);
1246 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
1248 /* Set scramble key */
1249 printk(KERN_DEBUG "Setting scramble key to 0x%x\n", scramble_key);
1251 writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0);
1252 writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1);
1253 writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
1254 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
1256 /* Enable interrupts, bit 4 high to keep unused
1257 * source from interrupting us, bit 2 high to
1258 * set interrupt enable, 567 to enable TxDN,
1262 outb(imrConfIENA+imrConfRFU1, iobase + NETWAVE_REG_IMR);
1264 /* Hent 4 bytes fra 0x170. Skal vaere 0a,29,88,36
1266 * skriv 80 til d000:3688
1267 * sjekk om det ble 80
1270 /* Enable Receiver */
1272 writeb(NETWAVE_CMD_ER, ramBase + NETWAVE_EREG_CB + 0);
1273 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
1275 /* Set the IENA bit in COR */
1277 outb(corConfIENA + corConfLVLREQ, iobase + NETWAVE_REG_COR);
1281 * Function netwave_hw_xmit (data, len, dev)
1283 static int netwave_hw_xmit(unsigned char* data, int len,
1284 struct net_device* dev) {
1285 unsigned long flags;
1286 unsigned int TxFreeList,
1292 netwave_private *priv = netdev_priv(dev);
1293 u_char __iomem * ramBase = priv->ramBase;
1294 kio_addr_t iobase = dev->base_addr;
1296 /* Disable interrupts & save flags */
1297 spin_lock_irqsave(&priv->spinlock, flags);
1299 /* Check if there are transmit buffers available */
1301 if ((inb(iobase+NETWAVE_REG_ASR) & NETWAVE_ASR_TXBA) == 0) {
1302 /* No buffers available */
1303 printk(KERN_DEBUG "netwave_hw_xmit: %s - no xmit buffers available.\n",
1305 spin_unlock_irqrestore(&priv->spinlock, flags);
1309 priv->stats.tx_bytes += len;
1311 DEBUG(3, "Transmitting with SPCQ %x SPU %x LIF %x ISPLQ %x\n",
1312 readb(ramBase + NETWAVE_EREG_SPCQ),
1313 readb(ramBase + NETWAVE_EREG_SPU),
1314 readb(ramBase + NETWAVE_EREG_LIF),
1315 readb(ramBase + NETWAVE_EREG_ISPLQ));
1317 /* Now try to insert it into the adapters free memory */
1319 TxFreeList = get_uint16(ramBase + NETWAVE_EREG_TDP);
1320 MaxData = get_uint16(ramBase + NETWAVE_EREG_TDP+2);
1321 DataOffset = get_uint16(ramBase + NETWAVE_EREG_TDP+4);
1323 DEBUG(3, "TxFreeList %x, MaxData %x, DataOffset %x\n",
1324 TxFreeList, MaxData, DataOffset);
1326 /* Copy packet to the adapter fragment buffers */
1327 curBuff = TxFreeList;
1329 while (tmpcount < len) {
1330 int tmplen = len - tmpcount;
1331 copy_to_pc(ramBase + curBuff + DataOffset, data + tmpcount,
1332 (tmplen < MaxData) ? tmplen : MaxData);
1333 tmpcount += MaxData;
1335 /* Advance to next buffer */
1336 curBuff = get_uint16(ramBase + curBuff);
1339 /* Now issue transmit list */
1341 writeb(NETWAVE_CMD_TL, ramBase + NETWAVE_EREG_CB + 0);
1342 writeb(len & 0xff, ramBase + NETWAVE_EREG_CB + 1);
1343 writeb((len>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2);
1344 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3);
1346 spin_unlock_irqrestore(&priv->spinlock, flags);
1350 static int netwave_start_xmit(struct sk_buff *skb, struct net_device *dev) {
1351 /* This flag indicate that the hardware can't perform a transmission.
1352 * Theoritically, NET3 check it before sending a packet to the driver,
1353 * but in fact it never do that and pool continuously.
1354 * As the watchdog will abort too long transmissions, we are quite safe...
1357 netif_stop_queue(dev);
1360 short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
1361 unsigned char* buf = skb->data;
1363 if (netwave_hw_xmit( buf, length, dev) == 1) {
1364 /* Some error, let's make them call us another time? */
1365 netif_start_queue(dev);
1367 dev->trans_start = jiffies;
1372 } /* netwave_start_xmit */
1375 * Function netwave_interrupt (irq, dev_id, regs)
1377 * This function is the interrupt handler for the Netwave card. This
1378 * routine will be called whenever:
1379 * 1. A packet is received.
1380 * 2. A packet has successfully been transferred and the unit is
1381 * ready to transmit another packet.
1382 * 3. A command has completed execution.
1384 static irqreturn_t netwave_interrupt(int irq, void* dev_id, struct pt_regs *regs)
1387 u_char __iomem *ramBase;
1388 struct net_device *dev = (struct net_device *)dev_id;
1389 struct netwave_private *priv = netdev_priv(dev);
1390 dev_link_t *link = &priv->link;
1393 if (!netif_device_present(dev))
1396 iobase = dev->base_addr;
1397 ramBase = priv->ramBase;
1399 /* Now find what caused the interrupt, check while interrupts ready */
1400 for (i = 0; i < 10; i++) {
1404 if (!(inb(iobase+NETWAVE_REG_CCSR) & 0x02))
1405 break; /* None of the interrupt sources asserted (normal exit) */
1407 status = inb(iobase + NETWAVE_REG_ASR);
1409 if (!DEV_OK(link)) {
1410 DEBUG(1, "netwave_interrupt: Interrupt with status 0x%x "
1411 "from removed or suspended card!\n", status);
1416 if (status & 0x80) {
1418 /* wait_WOC(iobase); */
1419 /* RxRdy cannot be reset directly by the host */
1422 if (status & 0x40) {
1425 rser = readb(ramBase + NETWAVE_EREG_RSER);
1428 ++priv->stats.rx_dropped;
1429 ++priv->stats.rx_crc_errors;
1432 ++priv->stats.rx_frame_errors;
1434 /* Clear the RxErr bit in RSER. RSER+4 is the
1435 * write part. Also clear the RxCRC (0x04) and
1436 * RxBig (0x02) bits if present */
1438 writeb(0x40 | (rser & 0x06), ramBase + NETWAVE_EREG_RSER + 4);
1440 /* Write bit 6 high to ASCC to clear RxErr in ASR,
1441 * WOC must be set first!
1444 writeb(0x40, ramBase + NETWAVE_EREG_ASCC);
1446 /* Remember to count up priv->stats on error packets */
1447 ++priv->stats.rx_errors;
1450 if (status & 0x20) {
1453 txStatus = readb(ramBase + NETWAVE_EREG_TSER);
1454 DEBUG(3, "Transmit done. TSER = %x id %x\n",
1455 txStatus, readb(ramBase + NETWAVE_EREG_TSER + 1));
1457 if (txStatus & 0x20) {
1458 /* Transmitting was okay, clear bits */
1460 writeb(0x2f, ramBase + NETWAVE_EREG_TSER + 4);
1461 ++priv->stats.tx_packets;
1464 if (txStatus & 0xd0) {
1465 if (txStatus & 0x80) {
1466 ++priv->stats.collisions; /* Because of /proc/net/dev*/
1467 /* ++priv->stats.tx_aborted_errors; */
1468 /* printk("Collision. %ld\n", jiffies - dev->trans_start); */
1470 if (txStatus & 0x40)
1471 ++priv->stats.tx_carrier_errors;
1472 /* 0x80 TxGU Transmit giveup - nine times and no luck
1473 * 0x40 TxNOAP No access point. Discarded packet.
1474 * 0x10 TxErr Transmit error. Always set when
1475 * TxGU and TxNOAP is set. (Those are the only ones
1478 DEBUG(3, "netwave_interrupt: TxDN with error status %x\n",
1481 /* Clear out TxGU, TxNOAP, TxErr and TxTrys */
1483 writeb(0xdf & txStatus, ramBase+NETWAVE_EREG_TSER+4);
1484 ++priv->stats.tx_errors;
1486 DEBUG(3, "New status is TSER %x ASR %x\n",
1487 readb(ramBase + NETWAVE_EREG_TSER),
1488 inb(iobase + NETWAVE_REG_ASR));
1490 netif_wake_queue(dev);
1492 /* TxBA, this would trigger on all error packets received */
1493 /* if (status & 0x01) {
1494 DEBUG(4, "Transmit buffers available, %x\n", status);
1498 /* Handled if we looped at least one time - Jean II */
1499 return IRQ_RETVAL(i);
1500 } /* netwave_interrupt */
1503 * Function netwave_watchdog (a)
1505 * Watchdog : when we start a transmission, we set a timer in the
1506 * kernel. If the transmission complete, this timer is disabled. If
1507 * it expire, we reset the card.
1510 static void netwave_watchdog(struct net_device *dev) {
1512 DEBUG(1, "%s: netwave_watchdog: watchdog timer expired\n", dev->name);
1514 dev->trans_start = jiffies;
1515 netif_wake_queue(dev);
1516 } /* netwave_watchdog */
1518 static struct net_device_stats *netwave_get_stats(struct net_device *dev) {
1519 netwave_private *priv = netdev_priv(dev);
1523 DEBUG(2, "netwave: SPCQ %x SPU %x LIF %x ISPLQ %x MHS %x rxtx %x"
1524 " %x tx %x %x %x %x\n",
1525 readb(priv->ramBase + NETWAVE_EREG_SPCQ),
1526 readb(priv->ramBase + NETWAVE_EREG_SPU),
1527 readb(priv->ramBase + NETWAVE_EREG_LIF),
1528 readb(priv->ramBase + NETWAVE_EREG_ISPLQ),
1529 readb(priv->ramBase + NETWAVE_EREG_MHS),
1530 readb(priv->ramBase + NETWAVE_EREG_EC + 0xe),
1531 readb(priv->ramBase + NETWAVE_EREG_EC + 0xf),
1532 readb(priv->ramBase + NETWAVE_EREG_EC + 0x18),
1533 readb(priv->ramBase + NETWAVE_EREG_EC + 0x19),
1534 readb(priv->ramBase + NETWAVE_EREG_EC + 0x1a),
1535 readb(priv->ramBase + NETWAVE_EREG_EC + 0x1b));
1537 return &priv->stats;
1540 static void update_stats(struct net_device *dev) {
1541 //unsigned long flags;
1542 /* netwave_private *priv = netdev_priv(dev); */
1544 //spin_lock_irqsave(&priv->spinlock, flags);
1546 /* priv->stats.rx_packets = readb(priv->ramBase + 0x18e);
1547 priv->stats.tx_packets = readb(priv->ramBase + 0x18f); */
1549 //spin_unlock_irqrestore(&priv->spinlock, flags);
1552 static int netwave_rx(struct net_device *dev)
1554 netwave_private *priv = netdev_priv(dev);
1555 u_char __iomem *ramBase = priv->ramBase;
1556 kio_addr_t iobase = dev->base_addr;
1558 struct sk_buff *skb = NULL;
1559 unsigned int curBuffer,
1563 int dataCount, dataOffset;
1567 DEBUG(3, "xinw_rx: Receiving ... \n");
1569 /* Receive max 10 packets for now. */
1570 for (i = 0; i < 10; i++) {
1573 rxStatus = readb(ramBase + NETWAVE_EREG_RSER);
1574 if ( !( rxStatus & 0x80)) /* No more packets */
1577 /* Check if multicast/broadcast or other */
1578 /* multicast = (rxStatus & 0x20); */
1580 /* The receive list pointer and length of the packet */
1582 rcvLen = get_int16( ramBase + NETWAVE_EREG_RDP);
1583 rcvList = get_uint16( ramBase + NETWAVE_EREG_RDP + 2);
1586 printk(KERN_DEBUG "netwave_rx: Receive packet with len %d\n",
1591 skb = dev_alloc_skb(rcvLen+5);
1593 DEBUG(1, "netwave_rx: Could not allocate an sk_buff of "
1594 "length %d\n", rcvLen);
1595 ++priv->stats.rx_dropped;
1596 /* Tell the adapter to skip the packet */
1598 writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0);
1599 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
1603 skb_reserve( skb, 2); /* Align IP on 16 byte */
1604 skb_put( skb, rcvLen);
1607 /* Copy packet fragments to the skb data area */
1608 ptr = (u_char*) skb->data;
1609 curBuffer = rcvList;
1611 while ( tmpcount < rcvLen) {
1612 /* Get length and offset of current buffer */
1613 dataCount = get_uint16( ramBase+curBuffer+2);
1614 dataOffset = get_uint16( ramBase+curBuffer+4);
1616 copy_from_pc( ptr + tmpcount,
1617 ramBase+curBuffer+dataOffset, dataCount);
1619 tmpcount += dataCount;
1621 /* Point to next buffer */
1622 curBuffer = get_uint16(ramBase + curBuffer);
1625 skb->protocol = eth_type_trans(skb,dev);
1626 /* Queue packet for network layer */
1629 dev->last_rx = jiffies;
1630 priv->stats.rx_packets++;
1631 priv->stats.rx_bytes += rcvLen;
1633 /* Got the packet, tell the adapter to skip it */
1635 writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0);
1636 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1);
1637 DEBUG(3, "Packet reception ok\n");
1642 static int netwave_open(struct net_device *dev) {
1643 netwave_private *priv = netdev_priv(dev);
1644 dev_link_t *link = &priv->link;
1646 DEBUG(1, "netwave_open: starting.\n");
1653 netif_start_queue(dev);
1659 static int netwave_close(struct net_device *dev) {
1660 netwave_private *priv = netdev_priv(dev);
1661 dev_link_t *link = &priv->link;
1663 DEBUG(1, "netwave_close: finishing.\n");
1666 netif_stop_queue(dev);
1671 static struct pcmcia_driver netwave_driver = {
1672 .owner = THIS_MODULE,
1674 .name = "netwave_cs",
1676 .attach = netwave_attach,
1677 .detach = netwave_detach,
1680 static int __init init_netwave_cs(void)
1682 return pcmcia_register_driver(&netwave_driver);
1685 static void __exit exit_netwave_cs(void)
1687 pcmcia_unregister_driver(&netwave_driver);
1688 BUG_ON(dev_list != NULL);
1691 module_init(init_netwave_cs);
1692 module_exit(exit_netwave_cs);
1694 /* Set or clear the multicast filter for this adaptor.
1695 num_addrs == -1 Promiscuous mode, receive all packets
1696 num_addrs == 0 Normal mode, clear multicast list
1697 num_addrs > 0 Multicast mode, receive normal and MC packets, and do
1698 best-effort filtering.
1700 static void set_multicast_list(struct net_device *dev)
1702 kio_addr_t iobase = dev->base_addr;
1703 netwave_private *priv = netdev_priv(dev);
1704 u_char __iomem * ramBase = priv->ramBase;
1710 if (old != dev->mc_count) {
1711 old = dev->mc_count;
1712 DEBUG(0, "%s: setting Rx mode to %d addresses.\n",
1713 dev->name, dev->mc_count);
1718 if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) {
1719 /* Multicast Mode */
1720 rcvMode = rxConfRxEna + rxConfAMP + rxConfBcast;
1721 } else if (dev->flags & IFF_PROMISC) {
1722 /* Promiscous mode */
1723 rcvMode = rxConfRxEna + rxConfPro + rxConfAMP + rxConfBcast;
1726 rcvMode = rxConfRxEna + rxConfBcast;
1729 /* printk("netwave set_multicast_list: rcvMode to %x\n", rcvMode);*/
1730 /* Now set receive mode */
1732 writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0);
1733 writeb(rcvMode, ramBase + NETWAVE_EREG_CB + 1);
1734 writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2);
1736 MODULE_LICENSE("GPL");