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1da177e4 LT |
1 | /********************************************************************* |
2 | * | |
3 | * Filename: netwave_cs.c | |
4 | * Version: 0.4.1 | |
5 | * Description: Netwave AirSurfer Wireless LAN PC Card driver | |
6 | * Status: Experimental. | |
96de0e25 | 7 | * Authors: John Markus Bjørndalen <johnm@cs.uit.no> |
1da177e4 LT |
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> | |
13 | * | |
96de0e25 | 14 | * Copyright (c) 1997 University of Tromsø, Norway |
1da177e4 LT |
15 | * |
16 | * Revision History: | |
17 | * | |
96de0e25 | 18 | * 08-Nov-97 15:14:47 John Markus Bjørndalen <johnm@cs.uit.no> |
1da177e4 LT |
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) | |
26 | * Others: | |
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 | |
31 | * function | |
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 | ********************************************************************/ | |
36 | ||
37 | /* To have statistics (just packets sent) define this */ | |
38 | #undef NETWAVE_STATS | |
39 | ||
1da177e4 LT |
40 | #include <linux/module.h> |
41 | #include <linux/kernel.h> | |
42 | #include <linux/init.h> | |
43 | #include <linux/types.h> | |
44 | #include <linux/fcntl.h> | |
45 | #include <linux/interrupt.h> | |
46 | #include <linux/ptrace.h> | |
47 | #include <linux/ioport.h> | |
48 | #include <linux/in.h> | |
49 | #include <linux/slab.h> | |
50 | #include <linux/string.h> | |
51 | #include <linux/timer.h> | |
52 | #include <linux/errno.h> | |
53 | #include <linux/netdevice.h> | |
54 | #include <linux/etherdevice.h> | |
55 | #include <linux/skbuff.h> | |
56 | #include <linux/bitops.h> | |
1da177e4 | 57 | #include <linux/wireless.h> |
1da177e4 | 58 | #include <net/iw_handler.h> |
1da177e4 | 59 | |
1da177e4 LT |
60 | #include <pcmcia/cs_types.h> |
61 | #include <pcmcia/cs.h> | |
62 | #include <pcmcia/cistpl.h> | |
63 | #include <pcmcia/cisreg.h> | |
64 | #include <pcmcia/ds.h> | |
65 | #include <pcmcia/mem_op.h> | |
66 | ||
67 | #include <asm/system.h> | |
68 | #include <asm/io.h> | |
69 | #include <asm/dma.h> | |
70 | ||
71 | #define NETWAVE_REGOFF 0x8000 | |
72 | /* The Netwave IO registers, offsets to iobase */ | |
73 | #define NETWAVE_REG_COR 0x0 | |
74 | #define NETWAVE_REG_CCSR 0x2 | |
75 | #define NETWAVE_REG_ASR 0x4 | |
76 | #define NETWAVE_REG_IMR 0xa | |
77 | #define NETWAVE_REG_PMR 0xc | |
78 | #define NETWAVE_REG_IOLOW 0x6 | |
79 | #define NETWAVE_REG_IOHI 0x7 | |
80 | #define NETWAVE_REG_IOCONTROL 0x8 | |
81 | #define NETWAVE_REG_DATA 0xf | |
82 | /* The Netwave Extended IO registers, offsets to RamBase */ | |
83 | #define NETWAVE_EREG_ASCC 0x114 | |
84 | #define NETWAVE_EREG_RSER 0x120 | |
85 | #define NETWAVE_EREG_RSERW 0x124 | |
86 | #define NETWAVE_EREG_TSER 0x130 | |
87 | #define NETWAVE_EREG_TSERW 0x134 | |
88 | #define NETWAVE_EREG_CB 0x100 | |
89 | #define NETWAVE_EREG_SPCQ 0x154 | |
90 | #define NETWAVE_EREG_SPU 0x155 | |
91 | #define NETWAVE_EREG_LIF 0x14e | |
92 | #define NETWAVE_EREG_ISPLQ 0x156 | |
93 | #define NETWAVE_EREG_HHC 0x158 | |
94 | #define NETWAVE_EREG_NI 0x16e | |
95 | #define NETWAVE_EREG_MHS 0x16b | |
96 | #define NETWAVE_EREG_TDP 0x140 | |
97 | #define NETWAVE_EREG_RDP 0x150 | |
98 | #define NETWAVE_EREG_PA 0x160 | |
99 | #define NETWAVE_EREG_EC 0x180 | |
100 | #define NETWAVE_EREG_CRBP 0x17a | |
101 | #define NETWAVE_EREG_ARW 0x166 | |
102 | ||
103 | /* | |
104 | * Commands used in the extended command buffer | |
105 | * NETWAVE_EREG_CB (0x100-0x10F) | |
106 | */ | |
107 | #define NETWAVE_CMD_NOP 0x00 | |
108 | #define NETWAVE_CMD_SRC 0x01 | |
109 | #define NETWAVE_CMD_STC 0x02 | |
110 | #define NETWAVE_CMD_AMA 0x03 | |
111 | #define NETWAVE_CMD_DMA 0x04 | |
112 | #define NETWAVE_CMD_SAMA 0x05 | |
113 | #define NETWAVE_CMD_ER 0x06 | |
114 | #define NETWAVE_CMD_DR 0x07 | |
115 | #define NETWAVE_CMD_TL 0x08 | |
116 | #define NETWAVE_CMD_SRP 0x09 | |
117 | #define NETWAVE_CMD_SSK 0x0a | |
118 | #define NETWAVE_CMD_SMD 0x0b | |
119 | #define NETWAVE_CMD_SAPD 0x0c | |
120 | #define NETWAVE_CMD_SSS 0x11 | |
121 | /* End of Command marker */ | |
122 | #define NETWAVE_CMD_EOC 0x00 | |
123 | ||
124 | /* ASR register bits */ | |
125 | #define NETWAVE_ASR_RXRDY 0x80 | |
126 | #define NETWAVE_ASR_TXBA 0x01 | |
127 | ||
128 | #define TX_TIMEOUT ((32*HZ)/100) | |
129 | ||
130 | static const unsigned int imrConfRFU1 = 0x10; /* RFU interrupt mask, keep high */ | |
131 | static const unsigned int imrConfIENA = 0x02; /* Interrupt enable */ | |
132 | ||
133 | static const unsigned int corConfIENA = 0x01; /* Interrupt enable */ | |
134 | static const unsigned int corConfLVLREQ = 0x40; /* Keep high */ | |
135 | ||
136 | static const unsigned int rxConfRxEna = 0x80; /* Receive Enable */ | |
137 | static const unsigned int rxConfMAC = 0x20; /* MAC host receive mode*/ | |
138 | static const unsigned int rxConfPro = 0x10; /* Promiscuous */ | |
139 | static const unsigned int rxConfAMP = 0x08; /* Accept Multicast Packets */ | |
140 | static const unsigned int rxConfBcast = 0x04; /* Accept Broadcast Packets */ | |
141 | ||
142 | static const unsigned int txConfTxEna = 0x80; /* Transmit Enable */ | |
143 | static const unsigned int txConfMAC = 0x20; /* Host sends MAC mode */ | |
144 | static const unsigned int txConfEUD = 0x10; /* Enable Uni-Data packets */ | |
145 | static const unsigned int txConfKey = 0x02; /* Scramble data packets */ | |
146 | static const unsigned int txConfLoop = 0x01; /* Loopback mode */ | |
147 | ||
148 | /* | |
149 | All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If | |
150 | you do not define PCMCIA_DEBUG at all, all the debug code will be | |
151 | left out. If you compile with PCMCIA_DEBUG=0, the debug code will | |
152 | be present but disabled -- but it can then be enabled for specific | |
153 | modules at load time with a 'pc_debug=#' option to insmod. | |
154 | */ | |
155 | ||
156 | #ifdef PCMCIA_DEBUG | |
157 | static int pc_debug = PCMCIA_DEBUG; | |
158 | module_param(pc_debug, int, 0); | |
159 | #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) | |
160 | static char *version = | |
96de0e25 | 161 | "netwave_cs.c 0.3.0 Thu Jul 17 14:36:02 1997 (John Markus Bjørndalen)\n"; |
1da177e4 LT |
162 | #else |
163 | #define DEBUG(n, args...) | |
164 | #endif | |
165 | ||
1da177e4 LT |
166 | /*====================================================================*/ |
167 | ||
168 | /* Parameters that can be set with 'insmod' */ | |
169 | ||
170 | /* Choose the domain, default is 0x100 */ | |
171 | static u_int domain = 0x100; | |
172 | ||
173 | /* Scramble key, range from 0x0 to 0xffff. | |
174 | * 0x0 is no scrambling. | |
175 | */ | |
176 | static u_int scramble_key = 0x0; | |
177 | ||
178 | /* Shared memory speed, in ns. The documentation states that | |
179 | * the card should not be read faster than every 400ns. | |
180 | * This timing should be provided by the HBA. If it becomes a | |
181 | * problem, try setting mem_speed to 400. | |
182 | */ | |
183 | static int mem_speed; | |
184 | ||
185 | module_param(domain, int, 0); | |
186 | module_param(scramble_key, int, 0); | |
187 | module_param(mem_speed, int, 0); | |
188 | ||
189 | /*====================================================================*/ | |
190 | ||
191 | /* PCMCIA (Card Services) related functions */ | |
fba395ee | 192 | static void netwave_release(struct pcmcia_device *link); /* Card removal */ |
15b99ac1 | 193 | static int netwave_pcmcia_config(struct pcmcia_device *arg); /* Runs after card |
1da177e4 | 194 | insertion */ |
cc3b4866 | 195 | static void netwave_detach(struct pcmcia_device *p_dev); /* Destroy instance */ |
1da177e4 LT |
196 | |
197 | /* Hardware configuration */ | |
906da809 | 198 | static void netwave_doreset(unsigned int iobase, u_char __iomem *ramBase); |
1da177e4 LT |
199 | static void netwave_reset(struct net_device *dev); |
200 | ||
201 | /* Misc device stuff */ | |
202 | static int netwave_open(struct net_device *dev); /* Open the device */ | |
203 | static int netwave_close(struct net_device *dev); /* Close the device */ | |
204 | ||
205 | /* Packet transmission and Packet reception */ | |
206 | static int netwave_start_xmit( struct sk_buff *skb, struct net_device *dev); | |
207 | static int netwave_rx( struct net_device *dev); | |
208 | ||
209 | /* Interrupt routines */ | |
7d12e780 | 210 | static irqreturn_t netwave_interrupt(int irq, void *dev_id); |
1da177e4 LT |
211 | static void netwave_watchdog(struct net_device *); |
212 | ||
213 | /* Statistics */ | |
214 | static void update_stats(struct net_device *dev); | |
215 | static struct net_device_stats *netwave_get_stats(struct net_device *dev); | |
216 | ||
217 | /* Wireless extensions */ | |
1da177e4 | 218 | static struct iw_statistics* netwave_get_wireless_stats(struct net_device *dev); |
1da177e4 LT |
219 | |
220 | static void set_multicast_list(struct net_device *dev); | |
221 | ||
1da177e4 | 222 | /* |
fba395ee | 223 | A struct pcmcia_device structure has fields for most things that are needed |
1da177e4 LT |
224 | to keep track of a socket, but there will usually be some device |
225 | specific information that also needs to be kept track of. The | |
fba395ee | 226 | 'priv' pointer in a struct pcmcia_device structure can be used to point to |
1da177e4 LT |
227 | a device-specific private data structure, like this. |
228 | ||
229 | A driver needs to provide a dev_node_t structure for each device | |
230 | on a card. In some cases, there is only one device per card (for | |
231 | example, ethernet cards, modems). In other cases, there may be | |
232 | many actual or logical devices (SCSI adapters, memory cards with | |
233 | multiple partitions). The dev_node_t structures need to be kept | |
fba395ee | 234 | in a linked list starting at the 'dev' field of a struct pcmcia_device |
1da177e4 LT |
235 | structure. We allocate them in the card's private data structure, |
236 | because they generally can't be allocated dynamically. | |
237 | */ | |
238 | ||
1da177e4 | 239 | static const struct iw_handler_def netwave_handler_def; |
1da177e4 LT |
240 | |
241 | #define SIOCGIPSNAP SIOCIWFIRSTPRIV + 1 /* Site Survey Snapshot */ | |
242 | ||
243 | #define MAX_ESA 10 | |
244 | ||
245 | typedef struct net_addr { | |
246 | u_char addr48[6]; | |
247 | } net_addr; | |
248 | ||
249 | struct site_survey { | |
250 | u_short length; | |
251 | u_char struct_revision; | |
252 | u_char roaming_state; | |
253 | ||
254 | u_char sp_existsFlag; | |
255 | u_char sp_link_quality; | |
256 | u_char sp_max_link_quality; | |
257 | u_char linkQualityGoodFairBoundary; | |
258 | u_char linkQualityFairPoorBoundary; | |
259 | u_char sp_utilization; | |
260 | u_char sp_goodness; | |
261 | u_char sp_hotheadcount; | |
262 | u_char roaming_condition; | |
263 | ||
264 | net_addr sp; | |
265 | u_char numAPs; | |
266 | net_addr nearByAccessPoints[MAX_ESA]; | |
267 | }; | |
268 | ||
269 | typedef struct netwave_private { | |
fd238232 | 270 | struct pcmcia_device *p_dev; |
1da177e4 LT |
271 | spinlock_t spinlock; /* Serialize access to the hardware (SMP) */ |
272 | dev_node_t node; | |
273 | u_char __iomem *ramBase; | |
274 | int timeoutCounter; | |
275 | int lastExec; | |
276 | struct timer_list watchdog; /* To avoid blocking state */ | |
277 | struct site_survey nss; | |
278 | struct net_device_stats stats; | |
1da177e4 | 279 | struct iw_statistics iw_stats; /* Wireless stats */ |
1da177e4 LT |
280 | } netwave_private; |
281 | ||
282 | #ifdef NETWAVE_STATS | |
283 | static struct net_device_stats *netwave_get_stats(struct net_device *dev); | |
284 | #endif | |
285 | ||
286 | /* | |
287 | * The Netwave card is little-endian, so won't work for big endian | |
288 | * systems. | |
289 | */ | |
290 | static inline unsigned short get_uint16(u_char __iomem *staddr) | |
291 | { | |
292 | return readw(staddr); /* Return only 16 bits */ | |
293 | } | |
294 | ||
295 | static inline short get_int16(u_char __iomem * staddr) | |
296 | { | |
297 | return readw(staddr); | |
298 | } | |
299 | ||
300 | /* | |
301 | * Wait until the WOC (Write Operation Complete) bit in the | |
302 | * ASR (Adapter Status Register) is asserted. | |
303 | * This should have aborted if it takes too long time. | |
304 | */ | |
305 | static inline void wait_WOC(unsigned int iobase) | |
306 | { | |
307 | /* Spin lock */ | |
308 | while ((inb(iobase + NETWAVE_REG_ASR) & 0x8) != 0x8) ; | |
309 | } | |
310 | ||
1da177e4 | 311 | static void netwave_snapshot(netwave_private *priv, u_char __iomem *ramBase, |
906da809 | 312 | unsigned int iobase) { |
1da177e4 LT |
313 | u_short resultBuffer; |
314 | ||
315 | /* if time since last snapshot is > 1 sec. (100 jiffies?) then take | |
316 | * new snapshot, else return cached data. This is the recommended rate. | |
317 | */ | |
318 | if ( jiffies - priv->lastExec > 100) { | |
319 | /* Take site survey snapshot */ | |
320 | /*printk( KERN_DEBUG "Taking new snapshot. %ld\n", jiffies - | |
321 | priv->lastExec); */ | |
322 | wait_WOC(iobase); | |
323 | writeb(NETWAVE_CMD_SSS, ramBase + NETWAVE_EREG_CB + 0); | |
324 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); | |
325 | wait_WOC(iobase); | |
326 | ||
327 | /* Get result and copy to cach */ | |
328 | resultBuffer = readw(ramBase + NETWAVE_EREG_CRBP); | |
329 | copy_from_pc( &priv->nss, ramBase+resultBuffer, | |
330 | sizeof(struct site_survey)); | |
331 | } | |
332 | } | |
1da177e4 | 333 | |
1da177e4 LT |
334 | /* |
335 | * Function netwave_get_wireless_stats (dev) | |
336 | * | |
337 | * Wireless extensions statistics | |
338 | * | |
339 | */ | |
340 | static struct iw_statistics *netwave_get_wireless_stats(struct net_device *dev) | |
341 | { | |
342 | unsigned long flags; | |
906da809 | 343 | unsigned int iobase = dev->base_addr; |
1da177e4 LT |
344 | netwave_private *priv = netdev_priv(dev); |
345 | u_char __iomem *ramBase = priv->ramBase; | |
346 | struct iw_statistics* wstats; | |
347 | ||
348 | wstats = &priv->iw_stats; | |
349 | ||
350 | spin_lock_irqsave(&priv->spinlock, flags); | |
351 | ||
352 | netwave_snapshot( priv, ramBase, iobase); | |
353 | ||
354 | wstats->status = priv->nss.roaming_state; | |
355 | wstats->qual.qual = readb( ramBase + NETWAVE_EREG_SPCQ); | |
356 | wstats->qual.level = readb( ramBase + NETWAVE_EREG_ISPLQ); | |
357 | wstats->qual.noise = readb( ramBase + NETWAVE_EREG_SPU) & 0x3f; | |
358 | wstats->discard.nwid = 0L; | |
359 | wstats->discard.code = 0L; | |
360 | wstats->discard.misc = 0L; | |
361 | ||
362 | spin_unlock_irqrestore(&priv->spinlock, flags); | |
363 | ||
364 | return &priv->iw_stats; | |
365 | } | |
1da177e4 LT |
366 | |
367 | /* | |
368 | * Function netwave_attach (void) | |
369 | * | |
370 | * Creates an "instance" of the driver, allocating local data | |
371 | * structures for one device. The device is registered with Card | |
372 | * Services. | |
373 | * | |
374 | * The dev_link structure is initialized, but we don't actually | |
375 | * configure the card at this point -- we wait until we receive a | |
376 | * card insertion event. | |
377 | */ | |
15b99ac1 | 378 | static int netwave_probe(struct pcmcia_device *link) |
1da177e4 | 379 | { |
1da177e4 LT |
380 | struct net_device *dev; |
381 | netwave_private *priv; | |
f8cfa618 | 382 | |
1da177e4 | 383 | DEBUG(0, "netwave_attach()\n"); |
f8cfa618 | 384 | |
fba395ee | 385 | /* Initialize the struct pcmcia_device structure */ |
1da177e4 LT |
386 | dev = alloc_etherdev(sizeof(netwave_private)); |
387 | if (!dev) | |
f8cfa618 | 388 | return -ENOMEM; |
1da177e4 | 389 | priv = netdev_priv(dev); |
fba395ee | 390 | priv->p_dev = link; |
1da177e4 LT |
391 | link->priv = dev; |
392 | ||
393 | /* The io structure describes IO port mapping */ | |
394 | link->io.NumPorts1 = 16; | |
395 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; | |
396 | /* link->io.NumPorts2 = 16; | |
397 | link->io.Attributes2 = IO_DATA_PATH_WIDTH_16; */ | |
398 | link->io.IOAddrLines = 5; | |
399 | ||
400 | /* Interrupt setup */ | |
47cbb110 | 401 | link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT; |
1da177e4 LT |
402 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; |
403 | link->irq.Handler = &netwave_interrupt; | |
404 | ||
405 | /* General socket configuration */ | |
406 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
1da177e4 LT |
407 | link->conf.IntType = INT_MEMORY_AND_IO; |
408 | link->conf.ConfigIndex = 1; | |
1da177e4 LT |
409 | |
410 | /* Netwave private struct init. link/dev/node already taken care of, | |
411 | * other stuff zero'd - Jean II */ | |
412 | spin_lock_init(&priv->spinlock); | |
413 | ||
414 | /* Netwave specific entries in the device structure */ | |
1da177e4 LT |
415 | dev->hard_start_xmit = &netwave_start_xmit; |
416 | dev->get_stats = &netwave_get_stats; | |
417 | dev->set_multicast_list = &set_multicast_list; | |
418 | /* wireless extensions */ | |
1da177e4 | 419 | dev->wireless_handlers = (struct iw_handler_def *)&netwave_handler_def; |
1da177e4 LT |
420 | |
421 | dev->tx_timeout = &netwave_watchdog; | |
422 | dev->watchdog_timeo = TX_TIMEOUT; | |
423 | ||
424 | dev->open = &netwave_open; | |
425 | dev->stop = &netwave_close; | |
426 | link->irq.Instance = dev; | |
1da177e4 | 427 | |
15b99ac1 | 428 | return netwave_pcmcia_config( link); |
1da177e4 LT |
429 | } /* netwave_attach */ |
430 | ||
431 | /* | |
432 | * Function netwave_detach (link) | |
433 | * | |
434 | * This deletes a driver "instance". The device is de-registered | |
435 | * with Card Services. If it has been released, all local data | |
436 | * structures are freed. Otherwise, the structures will be freed | |
437 | * when the device is released. | |
438 | */ | |
fba395ee | 439 | static void netwave_detach(struct pcmcia_device *link) |
1da177e4 | 440 | { |
b4635811 | 441 | struct net_device *dev = link->priv; |
1da177e4 | 442 | |
b4635811 DB |
443 | DEBUG(0, "netwave_detach(0x%p)\n", link); |
444 | ||
e2d40963 | 445 | netwave_release(link); |
b4635811 | 446 | |
fd238232 | 447 | if (link->dev_node) |
b4635811 DB |
448 | unregister_netdev(dev); |
449 | ||
450 | free_netdev(dev); | |
1da177e4 LT |
451 | } /* netwave_detach */ |
452 | ||
453 | /* | |
454 | * Wireless Handler : get protocol name | |
455 | */ | |
456 | static int netwave_get_name(struct net_device *dev, | |
457 | struct iw_request_info *info, | |
458 | union iwreq_data *wrqu, | |
459 | char *extra) | |
460 | { | |
461 | strcpy(wrqu->name, "Netwave"); | |
462 | return 0; | |
463 | } | |
464 | ||
465 | /* | |
466 | * Wireless Handler : set Network ID | |
467 | */ | |
468 | static int netwave_set_nwid(struct net_device *dev, | |
469 | struct iw_request_info *info, | |
470 | union iwreq_data *wrqu, | |
471 | char *extra) | |
472 | { | |
473 | unsigned long flags; | |
906da809 | 474 | unsigned int iobase = dev->base_addr; |
1da177e4 LT |
475 | netwave_private *priv = netdev_priv(dev); |
476 | u_char __iomem *ramBase = priv->ramBase; | |
477 | ||
478 | /* Disable interrupts & save flags */ | |
479 | spin_lock_irqsave(&priv->spinlock, flags); | |
480 | ||
1da177e4 LT |
481 | if(!wrqu->nwid.disabled) { |
482 | domain = wrqu->nwid.value; | |
1da177e4 LT |
483 | printk( KERN_DEBUG "Setting domain to 0x%x%02x\n", |
484 | (domain >> 8) & 0x01, domain & 0xff); | |
485 | wait_WOC(iobase); | |
486 | writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0); | |
487 | writeb( domain & 0xff, ramBase + NETWAVE_EREG_CB + 1); | |
488 | writeb((domain >>8 ) & 0x01,ramBase + NETWAVE_EREG_CB+2); | |
489 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); | |
490 | } | |
491 | ||
492 | /* ReEnable interrupts & restore flags */ | |
493 | spin_unlock_irqrestore(&priv->spinlock, flags); | |
494 | ||
495 | return 0; | |
496 | } | |
497 | ||
498 | /* | |
499 | * Wireless Handler : get Network ID | |
500 | */ | |
501 | static int netwave_get_nwid(struct net_device *dev, | |
502 | struct iw_request_info *info, | |
503 | union iwreq_data *wrqu, | |
504 | char *extra) | |
505 | { | |
1da177e4 LT |
506 | wrqu->nwid.value = domain; |
507 | wrqu->nwid.disabled = 0; | |
508 | wrqu->nwid.fixed = 1; | |
1da177e4 LT |
509 | return 0; |
510 | } | |
511 | ||
512 | /* | |
513 | * Wireless Handler : set scramble key | |
514 | */ | |
515 | static int netwave_set_scramble(struct net_device *dev, | |
516 | struct iw_request_info *info, | |
517 | union iwreq_data *wrqu, | |
518 | char *key) | |
519 | { | |
520 | unsigned long flags; | |
906da809 | 521 | unsigned int iobase = dev->base_addr; |
1da177e4 LT |
522 | netwave_private *priv = netdev_priv(dev); |
523 | u_char __iomem *ramBase = priv->ramBase; | |
524 | ||
525 | /* Disable interrupts & save flags */ | |
526 | spin_lock_irqsave(&priv->spinlock, flags); | |
527 | ||
528 | scramble_key = (key[0] << 8) | key[1]; | |
529 | wait_WOC(iobase); | |
530 | writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0); | |
531 | writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1); | |
532 | writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2); | |
533 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); | |
534 | ||
535 | /* ReEnable interrupts & restore flags */ | |
536 | spin_unlock_irqrestore(&priv->spinlock, flags); | |
537 | ||
538 | return 0; | |
539 | } | |
540 | ||
541 | /* | |
542 | * Wireless Handler : get scramble key | |
543 | */ | |
544 | static int netwave_get_scramble(struct net_device *dev, | |
545 | struct iw_request_info *info, | |
546 | union iwreq_data *wrqu, | |
547 | char *key) | |
548 | { | |
549 | key[1] = scramble_key & 0xff; | |
550 | key[0] = (scramble_key>>8) & 0xff; | |
1da177e4 LT |
551 | wrqu->encoding.flags = IW_ENCODE_ENABLED; |
552 | wrqu->encoding.length = 2; | |
1da177e4 LT |
553 | return 0; |
554 | } | |
555 | ||
1da177e4 LT |
556 | /* |
557 | * Wireless Handler : get mode | |
558 | */ | |
559 | static int netwave_get_mode(struct net_device *dev, | |
560 | struct iw_request_info *info, | |
561 | union iwreq_data *wrqu, | |
562 | char *extra) | |
563 | { | |
564 | if(domain & 0x100) | |
565 | wrqu->mode = IW_MODE_INFRA; | |
566 | else | |
567 | wrqu->mode = IW_MODE_ADHOC; | |
568 | ||
569 | return 0; | |
570 | } | |
1da177e4 LT |
571 | |
572 | /* | |
573 | * Wireless Handler : get range info | |
574 | */ | |
575 | static int netwave_get_range(struct net_device *dev, | |
576 | struct iw_request_info *info, | |
577 | union iwreq_data *wrqu, | |
578 | char *extra) | |
579 | { | |
580 | struct iw_range *range = (struct iw_range *) extra; | |
581 | int ret = 0; | |
582 | ||
583 | /* Set the length (very important for backward compatibility) */ | |
584 | wrqu->data.length = sizeof(struct iw_range); | |
585 | ||
586 | /* Set all the info we don't care or don't know about to zero */ | |
587 | memset(range, 0, sizeof(struct iw_range)); | |
588 | ||
1da177e4 LT |
589 | /* Set the Wireless Extension versions */ |
590 | range->we_version_compiled = WIRELESS_EXT; | |
591 | range->we_version_source = 9; /* Nothing for us in v10 and v11 */ | |
1da177e4 LT |
592 | |
593 | /* Set information in the range struct */ | |
594 | range->throughput = 450 * 1000; /* don't argue on this ! */ | |
595 | range->min_nwid = 0x0000; | |
596 | range->max_nwid = 0x01FF; | |
597 | ||
598 | range->num_channels = range->num_frequency = 0; | |
599 | ||
600 | range->sensitivity = 0x3F; | |
601 | range->max_qual.qual = 255; | |
602 | range->max_qual.level = 255; | |
603 | range->max_qual.noise = 0; | |
604 | ||
1da177e4 LT |
605 | range->num_bitrates = 1; |
606 | range->bitrate[0] = 1000000; /* 1 Mb/s */ | |
1da177e4 | 607 | |
1da177e4 LT |
608 | range->encoding_size[0] = 2; /* 16 bits scrambling */ |
609 | range->num_encoding_sizes = 1; | |
610 | range->max_encoding_tokens = 1; /* Only one key possible */ | |
1da177e4 LT |
611 | |
612 | return ret; | |
613 | } | |
614 | ||
615 | /* | |
616 | * Wireless Private Handler : get snapshot | |
617 | */ | |
618 | static int netwave_get_snap(struct net_device *dev, | |
619 | struct iw_request_info *info, | |
620 | union iwreq_data *wrqu, | |
621 | char *extra) | |
622 | { | |
623 | unsigned long flags; | |
906da809 | 624 | unsigned int iobase = dev->base_addr; |
1da177e4 LT |
625 | netwave_private *priv = netdev_priv(dev); |
626 | u_char __iomem *ramBase = priv->ramBase; | |
627 | ||
628 | /* Disable interrupts & save flags */ | |
629 | spin_lock_irqsave(&priv->spinlock, flags); | |
630 | ||
631 | /* Take snapshot of environment */ | |
632 | netwave_snapshot( priv, ramBase, iobase); | |
633 | wrqu->data.length = priv->nss.length; | |
634 | memcpy(extra, (u_char *) &priv->nss, sizeof( struct site_survey)); | |
635 | ||
636 | priv->lastExec = jiffies; | |
637 | ||
638 | /* ReEnable interrupts & restore flags */ | |
639 | spin_unlock_irqrestore(&priv->spinlock, flags); | |
640 | ||
641 | return(0); | |
642 | } | |
643 | ||
644 | /* | |
645 | * Structures to export the Wireless Handlers | |
646 | * This is the stuff that are treated the wireless extensions (iwconfig) | |
647 | */ | |
648 | ||
649 | static const struct iw_priv_args netwave_private_args[] = { | |
650 | /*{ cmd, set_args, get_args, name } */ | |
651 | { SIOCGIPSNAP, 0, | |
652 | IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof(struct site_survey), | |
653 | "getsitesurvey" }, | |
654 | }; | |
655 | ||
1da177e4 LT |
656 | static const iw_handler netwave_handler[] = |
657 | { | |
658 | NULL, /* SIOCSIWNAME */ | |
659 | netwave_get_name, /* SIOCGIWNAME */ | |
660 | netwave_set_nwid, /* SIOCSIWNWID */ | |
661 | netwave_get_nwid, /* SIOCGIWNWID */ | |
662 | NULL, /* SIOCSIWFREQ */ | |
663 | NULL, /* SIOCGIWFREQ */ | |
664 | NULL, /* SIOCSIWMODE */ | |
665 | netwave_get_mode, /* SIOCGIWMODE */ | |
666 | NULL, /* SIOCSIWSENS */ | |
667 | NULL, /* SIOCGIWSENS */ | |
668 | NULL, /* SIOCSIWRANGE */ | |
669 | netwave_get_range, /* SIOCGIWRANGE */ | |
670 | NULL, /* SIOCSIWPRIV */ | |
671 | NULL, /* SIOCGIWPRIV */ | |
672 | NULL, /* SIOCSIWSTATS */ | |
673 | NULL, /* SIOCGIWSTATS */ | |
674 | NULL, /* SIOCSIWSPY */ | |
675 | NULL, /* SIOCGIWSPY */ | |
676 | NULL, /* -- hole -- */ | |
677 | NULL, /* -- hole -- */ | |
678 | NULL, /* SIOCSIWAP */ | |
679 | NULL, /* SIOCGIWAP */ | |
680 | NULL, /* -- hole -- */ | |
681 | NULL, /* SIOCGIWAPLIST */ | |
682 | NULL, /* -- hole -- */ | |
683 | NULL, /* -- hole -- */ | |
684 | NULL, /* SIOCSIWESSID */ | |
685 | NULL, /* SIOCGIWESSID */ | |
686 | NULL, /* SIOCSIWNICKN */ | |
687 | NULL, /* SIOCGIWNICKN */ | |
688 | NULL, /* -- hole -- */ | |
689 | NULL, /* -- hole -- */ | |
690 | NULL, /* SIOCSIWRATE */ | |
691 | NULL, /* SIOCGIWRATE */ | |
692 | NULL, /* SIOCSIWRTS */ | |
693 | NULL, /* SIOCGIWRTS */ | |
694 | NULL, /* SIOCSIWFRAG */ | |
695 | NULL, /* SIOCGIWFRAG */ | |
696 | NULL, /* SIOCSIWTXPOW */ | |
697 | NULL, /* SIOCGIWTXPOW */ | |
698 | NULL, /* SIOCSIWRETRY */ | |
699 | NULL, /* SIOCGIWRETRY */ | |
700 | netwave_set_scramble, /* SIOCSIWENCODE */ | |
701 | netwave_get_scramble, /* SIOCGIWENCODE */ | |
702 | }; | |
703 | ||
704 | static const iw_handler netwave_private_handler[] = | |
705 | { | |
706 | NULL, /* SIOCIWFIRSTPRIV */ | |
707 | netwave_get_snap, /* SIOCIWFIRSTPRIV + 1 */ | |
708 | }; | |
709 | ||
710 | static const struct iw_handler_def netwave_handler_def = | |
711 | { | |
ff8ac609 DC |
712 | .num_standard = ARRAY_SIZE(netwave_handler), |
713 | .num_private = ARRAY_SIZE(netwave_private_handler), | |
714 | .num_private_args = ARRAY_SIZE(netwave_private_args), | |
1da177e4 LT |
715 | .standard = (iw_handler *) netwave_handler, |
716 | .private = (iw_handler *) netwave_private_handler, | |
717 | .private_args = (struct iw_priv_args *) netwave_private_args, | |
62337dd5 | 718 | .get_wireless_stats = netwave_get_wireless_stats, |
1da177e4 | 719 | }; |
1da177e4 LT |
720 | |
721 | /* | |
722 | * Function netwave_pcmcia_config (link) | |
723 | * | |
724 | * netwave_pcmcia_config() is scheduled to run after a CARD_INSERTION | |
725 | * event is received, to configure the PCMCIA socket, and to make the | |
726 | * device available to the system. | |
727 | * | |
728 | */ | |
729 | ||
730 | #define CS_CHECK(fn, ret) \ | |
731 | do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) | |
732 | ||
15b99ac1 | 733 | static int netwave_pcmcia_config(struct pcmcia_device *link) { |
1da177e4 LT |
734 | struct net_device *dev = link->priv; |
735 | netwave_private *priv = netdev_priv(dev); | |
1da177e4 | 736 | int i, j, last_ret, last_fn; |
1da177e4 LT |
737 | win_req_t req; |
738 | memreq_t mem; | |
739 | u_char __iomem *ramBase = NULL; | |
740 | ||
741 | DEBUG(0, "netwave_pcmcia_config(0x%p)\n", link); | |
742 | ||
1da177e4 LT |
743 | /* |
744 | * Try allocating IO ports. This tries a few fixed addresses. | |
745 | * If you want, you can also read the card's config table to | |
746 | * pick addresses -- see the serial driver for an example. | |
747 | */ | |
748 | for (i = j = 0x0; j < 0x400; j += 0x20) { | |
749 | link->io.BasePort1 = j ^ 0x300; | |
fba395ee | 750 | i = pcmcia_request_io(link, &link->io); |
4c89e88b DB |
751 | if (i == 0) |
752 | break; | |
1da177e4 | 753 | } |
4c89e88b | 754 | if (i != 0) { |
fba395ee | 755 | cs_error(link, RequestIO, i); |
1da177e4 LT |
756 | goto failed; |
757 | } | |
758 | ||
759 | /* | |
760 | * Now allocate an interrupt line. Note that this does not | |
761 | * actually assign a handler to the interrupt. | |
762 | */ | |
fba395ee | 763 | CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); |
1da177e4 LT |
764 | |
765 | /* | |
766 | * This actually configures the PCMCIA socket -- setting up | |
767 | * the I/O windows and the interrupt mapping. | |
768 | */ | |
fba395ee | 769 | CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf)); |
1da177e4 LT |
770 | |
771 | /* | |
fba395ee | 772 | * Allocate a 32K memory window. Note that the struct pcmcia_device |
1da177e4 LT |
773 | * structure provides space for one window handle -- if your |
774 | * device needs several windows, you'll need to keep track of | |
775 | * the handles in your private data structure, dev->priv. | |
776 | */ | |
777 | DEBUG(1, "Setting mem speed of %d\n", mem_speed); | |
778 | ||
779 | req.Attributes = WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_CM|WIN_ENABLE; | |
780 | req.Base = 0; req.Size = 0x8000; | |
781 | req.AccessSpeed = mem_speed; | |
fba395ee | 782 | CS_CHECK(RequestWindow, pcmcia_request_window(&link, &req, &link->win)); |
1da177e4 LT |
783 | mem.CardOffset = 0x20000; mem.Page = 0; |
784 | CS_CHECK(MapMemPage, pcmcia_map_mem_page(link->win, &mem)); | |
785 | ||
786 | /* Store base address of the common window frame */ | |
787 | ramBase = ioremap(req.Base, 0x8000); | |
788 | priv->ramBase = ramBase; | |
789 | ||
790 | dev->irq = link->irq.AssignedIRQ; | |
791 | dev->base_addr = link->io.BasePort1; | |
fba395ee | 792 | SET_NETDEV_DEV(dev, &handle_to_dev(link)); |
1da177e4 LT |
793 | |
794 | if (register_netdev(dev) != 0) { | |
795 | printk(KERN_DEBUG "netwave_cs: register_netdev() failed\n"); | |
796 | goto failed; | |
797 | } | |
798 | ||
799 | strcpy(priv->node.dev_name, dev->name); | |
fd238232 | 800 | link->dev_node = &priv->node; |
1da177e4 LT |
801 | |
802 | /* Reset card before reading physical address */ | |
803 | netwave_doreset(dev->base_addr, ramBase); | |
804 | ||
805 | /* Read the ethernet address and fill in the Netwave registers. */ | |
806 | for (i = 0; i < 6; i++) | |
807 | dev->dev_addr[i] = readb(ramBase + NETWAVE_EREG_PA + i); | |
808 | ||
8376e7a3 | 809 | printk(KERN_INFO "%s: Netwave: port %#3lx, irq %d, mem %lx, " |
e174961c | 810 | "id %c%c, hw_addr %pM\n", |
0795af57 JP |
811 | dev->name, dev->base_addr, dev->irq, |
812 | (u_long) ramBase, | |
813 | (int) readb(ramBase+NETWAVE_EREG_NI), | |
814 | (int) readb(ramBase+NETWAVE_EREG_NI+1), | |
e174961c | 815 | dev->dev_addr); |
1da177e4 LT |
816 | |
817 | /* get revision words */ | |
818 | printk(KERN_DEBUG "Netwave_reset: revision %04x %04x\n", | |
819 | get_uint16(ramBase + NETWAVE_EREG_ARW), | |
820 | get_uint16(ramBase + NETWAVE_EREG_ARW+2)); | |
15b99ac1 | 821 | return 0; |
1da177e4 LT |
822 | |
823 | cs_failed: | |
fba395ee | 824 | cs_error(link, last_fn, last_ret); |
1da177e4 LT |
825 | failed: |
826 | netwave_release(link); | |
15b99ac1 | 827 | return -ENODEV; |
1da177e4 LT |
828 | } /* netwave_pcmcia_config */ |
829 | ||
830 | /* | |
831 | * Function netwave_release (arg) | |
832 | * | |
833 | * After a card is removed, netwave_release() will unregister the net | |
834 | * device, and release the PCMCIA configuration. If the device is | |
835 | * still open, this will be postponed until it is closed. | |
836 | */ | |
fba395ee | 837 | static void netwave_release(struct pcmcia_device *link) |
1da177e4 | 838 | { |
5f2a71fc DB |
839 | struct net_device *dev = link->priv; |
840 | netwave_private *priv = netdev_priv(dev); | |
1da177e4 | 841 | |
5f2a71fc | 842 | DEBUG(0, "netwave_release(0x%p)\n", link); |
1da177e4 | 843 | |
fba395ee | 844 | pcmcia_disable_device(link); |
5f2a71fc DB |
845 | if (link->win) |
846 | iounmap(priv->ramBase); | |
1da177e4 LT |
847 | } |
848 | ||
fba395ee | 849 | static int netwave_suspend(struct pcmcia_device *link) |
98e4c28b | 850 | { |
98e4c28b DB |
851 | struct net_device *dev = link->priv; |
852 | ||
e2d40963 | 853 | if (link->open) |
8661bb5b | 854 | netif_device_detach(dev); |
98e4c28b DB |
855 | |
856 | return 0; | |
857 | } | |
858 | ||
fba395ee | 859 | static int netwave_resume(struct pcmcia_device *link) |
98e4c28b | 860 | { |
98e4c28b DB |
861 | struct net_device *dev = link->priv; |
862 | ||
e2d40963 | 863 | if (link->open) { |
8661bb5b DB |
864 | netwave_reset(dev); |
865 | netif_device_attach(dev); | |
98e4c28b DB |
866 | } |
867 | ||
868 | return 0; | |
869 | } | |
870 | ||
871 | ||
1da177e4 LT |
872 | /* |
873 | * Function netwave_doreset (ioBase, ramBase) | |
874 | * | |
875 | * Proper hardware reset of the card. | |
876 | */ | |
906da809 | 877 | static void netwave_doreset(unsigned int ioBase, u_char __iomem *ramBase) |
1da177e4 LT |
878 | { |
879 | /* Reset card */ | |
880 | wait_WOC(ioBase); | |
881 | outb(0x80, ioBase + NETWAVE_REG_PMR); | |
882 | writeb(0x08, ramBase + NETWAVE_EREG_ASCC); /* Bit 3 is WOC */ | |
883 | outb(0x0, ioBase + NETWAVE_REG_PMR); /* release reset */ | |
884 | } | |
885 | ||
886 | /* | |
887 | * Function netwave_reset (dev) | |
888 | * | |
889 | * Reset and restore all of the netwave registers | |
890 | */ | |
891 | static void netwave_reset(struct net_device *dev) { | |
892 | /* u_char state; */ | |
893 | netwave_private *priv = netdev_priv(dev); | |
894 | u_char __iomem *ramBase = priv->ramBase; | |
906da809 | 895 | unsigned int iobase = dev->base_addr; |
1da177e4 LT |
896 | |
897 | DEBUG(0, "netwave_reset: Done with hardware reset\n"); | |
898 | ||
899 | priv->timeoutCounter = 0; | |
900 | ||
901 | /* Reset card */ | |
902 | netwave_doreset(iobase, ramBase); | |
903 | printk(KERN_DEBUG "netwave_reset: Done with hardware reset\n"); | |
904 | ||
905 | /* Write a NOP to check the card */ | |
906 | wait_WOC(iobase); | |
907 | writeb(NETWAVE_CMD_NOP, ramBase + NETWAVE_EREG_CB + 0); | |
908 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); | |
909 | ||
910 | /* Set receive conf */ | |
911 | wait_WOC(iobase); | |
912 | writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0); | |
913 | writeb(rxConfRxEna + rxConfBcast, ramBase + NETWAVE_EREG_CB + 1); | |
914 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2); | |
915 | ||
916 | /* Set transmit conf */ | |
917 | wait_WOC(iobase); | |
918 | writeb(NETWAVE_CMD_STC, ramBase + NETWAVE_EREG_CB + 0); | |
919 | writeb(txConfTxEna, ramBase + NETWAVE_EREG_CB + 1); | |
920 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2); | |
921 | ||
922 | /* Now set the MU Domain */ | |
923 | printk(KERN_DEBUG "Setting domain to 0x%x%02x\n", (domain >> 8) & 0x01, domain & 0xff); | |
924 | wait_WOC(iobase); | |
925 | writeb(NETWAVE_CMD_SMD, ramBase + NETWAVE_EREG_CB + 0); | |
926 | writeb(domain & 0xff, ramBase + NETWAVE_EREG_CB + 1); | |
927 | writeb((domain>>8) & 0x01, ramBase + NETWAVE_EREG_CB + 2); | |
928 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); | |
929 | ||
930 | /* Set scramble key */ | |
931 | printk(KERN_DEBUG "Setting scramble key to 0x%x\n", scramble_key); | |
932 | wait_WOC(iobase); | |
933 | writeb(NETWAVE_CMD_SSK, ramBase + NETWAVE_EREG_CB + 0); | |
934 | writeb(scramble_key & 0xff, ramBase + NETWAVE_EREG_CB + 1); | |
935 | writeb((scramble_key>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2); | |
936 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); | |
937 | ||
938 | /* Enable interrupts, bit 4 high to keep unused | |
939 | * source from interrupting us, bit 2 high to | |
940 | * set interrupt enable, 567 to enable TxDN, | |
941 | * RxErr and RxRdy | |
942 | */ | |
943 | wait_WOC(iobase); | |
944 | outb(imrConfIENA+imrConfRFU1, iobase + NETWAVE_REG_IMR); | |
945 | ||
946 | /* Hent 4 bytes fra 0x170. Skal vaere 0a,29,88,36 | |
947 | * waitWOC | |
948 | * skriv 80 til d000:3688 | |
949 | * sjekk om det ble 80 | |
950 | */ | |
951 | ||
952 | /* Enable Receiver */ | |
953 | wait_WOC(iobase); | |
954 | writeb(NETWAVE_CMD_ER, ramBase + NETWAVE_EREG_CB + 0); | |
955 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); | |
956 | ||
957 | /* Set the IENA bit in COR */ | |
958 | wait_WOC(iobase); | |
959 | outb(corConfIENA + corConfLVLREQ, iobase + NETWAVE_REG_COR); | |
960 | } | |
961 | ||
962 | /* | |
963 | * Function netwave_hw_xmit (data, len, dev) | |
964 | */ | |
965 | static int netwave_hw_xmit(unsigned char* data, int len, | |
966 | struct net_device* dev) { | |
967 | unsigned long flags; | |
968 | unsigned int TxFreeList, | |
969 | curBuff, | |
970 | MaxData, | |
971 | DataOffset; | |
972 | int tmpcount; | |
973 | ||
974 | netwave_private *priv = netdev_priv(dev); | |
975 | u_char __iomem * ramBase = priv->ramBase; | |
906da809 | 976 | unsigned int iobase = dev->base_addr; |
1da177e4 LT |
977 | |
978 | /* Disable interrupts & save flags */ | |
979 | spin_lock_irqsave(&priv->spinlock, flags); | |
980 | ||
981 | /* Check if there are transmit buffers available */ | |
982 | wait_WOC(iobase); | |
983 | if ((inb(iobase+NETWAVE_REG_ASR) & NETWAVE_ASR_TXBA) == 0) { | |
984 | /* No buffers available */ | |
985 | printk(KERN_DEBUG "netwave_hw_xmit: %s - no xmit buffers available.\n", | |
986 | dev->name); | |
987 | spin_unlock_irqrestore(&priv->spinlock, flags); | |
988 | return 1; | |
989 | } | |
990 | ||
991 | priv->stats.tx_bytes += len; | |
992 | ||
993 | DEBUG(3, "Transmitting with SPCQ %x SPU %x LIF %x ISPLQ %x\n", | |
994 | readb(ramBase + NETWAVE_EREG_SPCQ), | |
995 | readb(ramBase + NETWAVE_EREG_SPU), | |
996 | readb(ramBase + NETWAVE_EREG_LIF), | |
997 | readb(ramBase + NETWAVE_EREG_ISPLQ)); | |
998 | ||
999 | /* Now try to insert it into the adapters free memory */ | |
1000 | wait_WOC(iobase); | |
1001 | TxFreeList = get_uint16(ramBase + NETWAVE_EREG_TDP); | |
1002 | MaxData = get_uint16(ramBase + NETWAVE_EREG_TDP+2); | |
1003 | DataOffset = get_uint16(ramBase + NETWAVE_EREG_TDP+4); | |
1004 | ||
1005 | DEBUG(3, "TxFreeList %x, MaxData %x, DataOffset %x\n", | |
1006 | TxFreeList, MaxData, DataOffset); | |
1007 | ||
1008 | /* Copy packet to the adapter fragment buffers */ | |
1009 | curBuff = TxFreeList; | |
1010 | tmpcount = 0; | |
1011 | while (tmpcount < len) { | |
1012 | int tmplen = len - tmpcount; | |
1013 | copy_to_pc(ramBase + curBuff + DataOffset, data + tmpcount, | |
1014 | (tmplen < MaxData) ? tmplen : MaxData); | |
1015 | tmpcount += MaxData; | |
1016 | ||
1017 | /* Advance to next buffer */ | |
1018 | curBuff = get_uint16(ramBase + curBuff); | |
1019 | } | |
1020 | ||
1021 | /* Now issue transmit list */ | |
1022 | wait_WOC(iobase); | |
1023 | writeb(NETWAVE_CMD_TL, ramBase + NETWAVE_EREG_CB + 0); | |
1024 | writeb(len & 0xff, ramBase + NETWAVE_EREG_CB + 1); | |
1025 | writeb((len>>8) & 0xff, ramBase + NETWAVE_EREG_CB + 2); | |
1026 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 3); | |
1027 | ||
1028 | spin_unlock_irqrestore(&priv->spinlock, flags); | |
1029 | return 0; | |
1030 | } | |
1031 | ||
1032 | static int netwave_start_xmit(struct sk_buff *skb, struct net_device *dev) { | |
1033 | /* This flag indicate that the hardware can't perform a transmission. | |
1034 | * Theoritically, NET3 check it before sending a packet to the driver, | |
1035 | * but in fact it never do that and pool continuously. | |
1036 | * As the watchdog will abort too long transmissions, we are quite safe... | |
1037 | */ | |
1038 | ||
1039 | netif_stop_queue(dev); | |
1040 | ||
1041 | { | |
1042 | short length = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN; | |
1043 | unsigned char* buf = skb->data; | |
1044 | ||
1045 | if (netwave_hw_xmit( buf, length, dev) == 1) { | |
1046 | /* Some error, let's make them call us another time? */ | |
1047 | netif_start_queue(dev); | |
1048 | } | |
1049 | dev->trans_start = jiffies; | |
1050 | } | |
1051 | dev_kfree_skb(skb); | |
1052 | ||
1053 | return 0; | |
1054 | } /* netwave_start_xmit */ | |
1055 | ||
1056 | /* | |
7d12e780 | 1057 | * Function netwave_interrupt (irq, dev_id) |
1da177e4 LT |
1058 | * |
1059 | * This function is the interrupt handler for the Netwave card. This | |
1060 | * routine will be called whenever: | |
1061 | * 1. A packet is received. | |
1062 | * 2. A packet has successfully been transferred and the unit is | |
1063 | * ready to transmit another packet. | |
1064 | * 3. A command has completed execution. | |
1065 | */ | |
7d12e780 | 1066 | static irqreturn_t netwave_interrupt(int irq, void* dev_id) |
1da177e4 | 1067 | { |
906da809 | 1068 | unsigned int iobase; |
1da177e4 LT |
1069 | u_char __iomem *ramBase; |
1070 | struct net_device *dev = (struct net_device *)dev_id; | |
1071 | struct netwave_private *priv = netdev_priv(dev); | |
fba395ee | 1072 | struct pcmcia_device *link = priv->p_dev; |
1da177e4 LT |
1073 | int i; |
1074 | ||
1075 | if (!netif_device_present(dev)) | |
1076 | return IRQ_NONE; | |
1077 | ||
1078 | iobase = dev->base_addr; | |
1079 | ramBase = priv->ramBase; | |
1080 | ||
1081 | /* Now find what caused the interrupt, check while interrupts ready */ | |
1082 | for (i = 0; i < 10; i++) { | |
1083 | u_char status; | |
1084 | ||
1085 | wait_WOC(iobase); | |
1086 | if (!(inb(iobase+NETWAVE_REG_CCSR) & 0x02)) | |
1087 | break; /* None of the interrupt sources asserted (normal exit) */ | |
1088 | ||
1089 | status = inb(iobase + NETWAVE_REG_ASR); | |
1090 | ||
9940ec36 | 1091 | if (!pcmcia_dev_present(link)) { |
1da177e4 LT |
1092 | DEBUG(1, "netwave_interrupt: Interrupt with status 0x%x " |
1093 | "from removed or suspended card!\n", status); | |
1094 | break; | |
1095 | } | |
1096 | ||
1097 | /* RxRdy */ | |
1098 | if (status & 0x80) { | |
1099 | netwave_rx(dev); | |
1100 | /* wait_WOC(iobase); */ | |
1101 | /* RxRdy cannot be reset directly by the host */ | |
1102 | } | |
1103 | /* RxErr */ | |
1104 | if (status & 0x40) { | |
1105 | u_char rser; | |
1106 | ||
1107 | rser = readb(ramBase + NETWAVE_EREG_RSER); | |
1108 | ||
1109 | if (rser & 0x04) { | |
1110 | ++priv->stats.rx_dropped; | |
1111 | ++priv->stats.rx_crc_errors; | |
1112 | } | |
1113 | if (rser & 0x02) | |
1114 | ++priv->stats.rx_frame_errors; | |
1115 | ||
1116 | /* Clear the RxErr bit in RSER. RSER+4 is the | |
1117 | * write part. Also clear the RxCRC (0x04) and | |
1118 | * RxBig (0x02) bits if present */ | |
1119 | wait_WOC(iobase); | |
1120 | writeb(0x40 | (rser & 0x06), ramBase + NETWAVE_EREG_RSER + 4); | |
1121 | ||
1122 | /* Write bit 6 high to ASCC to clear RxErr in ASR, | |
1123 | * WOC must be set first! | |
1124 | */ | |
1125 | wait_WOC(iobase); | |
1126 | writeb(0x40, ramBase + NETWAVE_EREG_ASCC); | |
1127 | ||
1128 | /* Remember to count up priv->stats on error packets */ | |
1129 | ++priv->stats.rx_errors; | |
1130 | } | |
1131 | /* TxDN */ | |
1132 | if (status & 0x20) { | |
1133 | int txStatus; | |
1134 | ||
1135 | txStatus = readb(ramBase + NETWAVE_EREG_TSER); | |
1136 | DEBUG(3, "Transmit done. TSER = %x id %x\n", | |
1137 | txStatus, readb(ramBase + NETWAVE_EREG_TSER + 1)); | |
1138 | ||
1139 | if (txStatus & 0x20) { | |
1140 | /* Transmitting was okay, clear bits */ | |
1141 | wait_WOC(iobase); | |
1142 | writeb(0x2f, ramBase + NETWAVE_EREG_TSER + 4); | |
1143 | ++priv->stats.tx_packets; | |
1144 | } | |
1145 | ||
1146 | if (txStatus & 0xd0) { | |
1147 | if (txStatus & 0x80) { | |
1148 | ++priv->stats.collisions; /* Because of /proc/net/dev*/ | |
1149 | /* ++priv->stats.tx_aborted_errors; */ | |
1150 | /* printk("Collision. %ld\n", jiffies - dev->trans_start); */ | |
1151 | } | |
1152 | if (txStatus & 0x40) | |
1153 | ++priv->stats.tx_carrier_errors; | |
1154 | /* 0x80 TxGU Transmit giveup - nine times and no luck | |
1155 | * 0x40 TxNOAP No access point. Discarded packet. | |
1156 | * 0x10 TxErr Transmit error. Always set when | |
1157 | * TxGU and TxNOAP is set. (Those are the only ones | |
1158 | * to set TxErr). | |
1159 | */ | |
1160 | DEBUG(3, "netwave_interrupt: TxDN with error status %x\n", | |
1161 | txStatus); | |
1162 | ||
1163 | /* Clear out TxGU, TxNOAP, TxErr and TxTrys */ | |
1164 | wait_WOC(iobase); | |
1165 | writeb(0xdf & txStatus, ramBase+NETWAVE_EREG_TSER+4); | |
1166 | ++priv->stats.tx_errors; | |
1167 | } | |
1168 | DEBUG(3, "New status is TSER %x ASR %x\n", | |
1169 | readb(ramBase + NETWAVE_EREG_TSER), | |
1170 | inb(iobase + NETWAVE_REG_ASR)); | |
1171 | ||
1172 | netif_wake_queue(dev); | |
1173 | } | |
1174 | /* TxBA, this would trigger on all error packets received */ | |
1175 | /* if (status & 0x01) { | |
1176 | DEBUG(4, "Transmit buffers available, %x\n", status); | |
1177 | } | |
1178 | */ | |
1179 | } | |
1180 | /* Handled if we looped at least one time - Jean II */ | |
1181 | return IRQ_RETVAL(i); | |
1182 | } /* netwave_interrupt */ | |
1183 | ||
1184 | /* | |
1185 | * Function netwave_watchdog (a) | |
1186 | * | |
1187 | * Watchdog : when we start a transmission, we set a timer in the | |
1188 | * kernel. If the transmission complete, this timer is disabled. If | |
1189 | * it expire, we reset the card. | |
1190 | * | |
1191 | */ | |
1192 | static void netwave_watchdog(struct net_device *dev) { | |
1193 | ||
1194 | DEBUG(1, "%s: netwave_watchdog: watchdog timer expired\n", dev->name); | |
1195 | netwave_reset(dev); | |
1196 | dev->trans_start = jiffies; | |
1197 | netif_wake_queue(dev); | |
1198 | } /* netwave_watchdog */ | |
1199 | ||
1200 | static struct net_device_stats *netwave_get_stats(struct net_device *dev) { | |
1201 | netwave_private *priv = netdev_priv(dev); | |
1202 | ||
1203 | update_stats(dev); | |
1204 | ||
1205 | DEBUG(2, "netwave: SPCQ %x SPU %x LIF %x ISPLQ %x MHS %x rxtx %x" | |
1206 | " %x tx %x %x %x %x\n", | |
1207 | readb(priv->ramBase + NETWAVE_EREG_SPCQ), | |
1208 | readb(priv->ramBase + NETWAVE_EREG_SPU), | |
1209 | readb(priv->ramBase + NETWAVE_EREG_LIF), | |
1210 | readb(priv->ramBase + NETWAVE_EREG_ISPLQ), | |
1211 | readb(priv->ramBase + NETWAVE_EREG_MHS), | |
1212 | readb(priv->ramBase + NETWAVE_EREG_EC + 0xe), | |
1213 | readb(priv->ramBase + NETWAVE_EREG_EC + 0xf), | |
1214 | readb(priv->ramBase + NETWAVE_EREG_EC + 0x18), | |
1215 | readb(priv->ramBase + NETWAVE_EREG_EC + 0x19), | |
1216 | readb(priv->ramBase + NETWAVE_EREG_EC + 0x1a), | |
1217 | readb(priv->ramBase + NETWAVE_EREG_EC + 0x1b)); | |
1218 | ||
1219 | return &priv->stats; | |
1220 | } | |
1221 | ||
1222 | static void update_stats(struct net_device *dev) { | |
1223 | //unsigned long flags; | |
1224 | /* netwave_private *priv = netdev_priv(dev); */ | |
1225 | ||
1226 | //spin_lock_irqsave(&priv->spinlock, flags); | |
1227 | ||
1228 | /* priv->stats.rx_packets = readb(priv->ramBase + 0x18e); | |
1229 | priv->stats.tx_packets = readb(priv->ramBase + 0x18f); */ | |
1230 | ||
1231 | //spin_unlock_irqrestore(&priv->spinlock, flags); | |
1232 | } | |
1233 | ||
1234 | static int netwave_rx(struct net_device *dev) | |
1235 | { | |
1236 | netwave_private *priv = netdev_priv(dev); | |
1237 | u_char __iomem *ramBase = priv->ramBase; | |
906da809 | 1238 | unsigned int iobase = dev->base_addr; |
1da177e4 LT |
1239 | u_char rxStatus; |
1240 | struct sk_buff *skb = NULL; | |
1241 | unsigned int curBuffer, | |
1242 | rcvList; | |
1243 | int rcvLen; | |
1244 | int tmpcount = 0; | |
1245 | int dataCount, dataOffset; | |
1246 | int i; | |
1247 | u_char *ptr; | |
1248 | ||
1249 | DEBUG(3, "xinw_rx: Receiving ... \n"); | |
1250 | ||
1251 | /* Receive max 10 packets for now. */ | |
1252 | for (i = 0; i < 10; i++) { | |
1253 | /* Any packets? */ | |
1254 | wait_WOC(iobase); | |
1255 | rxStatus = readb(ramBase + NETWAVE_EREG_RSER); | |
1256 | if ( !( rxStatus & 0x80)) /* No more packets */ | |
1257 | break; | |
1258 | ||
1259 | /* Check if multicast/broadcast or other */ | |
1260 | /* multicast = (rxStatus & 0x20); */ | |
1261 | ||
1262 | /* The receive list pointer and length of the packet */ | |
1263 | wait_WOC(iobase); | |
1264 | rcvLen = get_int16( ramBase + NETWAVE_EREG_RDP); | |
1265 | rcvList = get_uint16( ramBase + NETWAVE_EREG_RDP + 2); | |
1266 | ||
1267 | if (rcvLen < 0) { | |
1268 | printk(KERN_DEBUG "netwave_rx: Receive packet with len %d\n", | |
1269 | rcvLen); | |
1270 | return 0; | |
1271 | } | |
1272 | ||
1273 | skb = dev_alloc_skb(rcvLen+5); | |
1274 | if (skb == NULL) { | |
1275 | DEBUG(1, "netwave_rx: Could not allocate an sk_buff of " | |
1276 | "length %d\n", rcvLen); | |
1277 | ++priv->stats.rx_dropped; | |
1278 | /* Tell the adapter to skip the packet */ | |
1279 | wait_WOC(iobase); | |
1280 | writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0); | |
1281 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); | |
1282 | return 0; | |
1283 | } | |
1284 | ||
1285 | skb_reserve( skb, 2); /* Align IP on 16 byte */ | |
1286 | skb_put( skb, rcvLen); | |
1da177e4 LT |
1287 | |
1288 | /* Copy packet fragments to the skb data area */ | |
1289 | ptr = (u_char*) skb->data; | |
1290 | curBuffer = rcvList; | |
1291 | tmpcount = 0; | |
1292 | while ( tmpcount < rcvLen) { | |
1293 | /* Get length and offset of current buffer */ | |
1294 | dataCount = get_uint16( ramBase+curBuffer+2); | |
1295 | dataOffset = get_uint16( ramBase+curBuffer+4); | |
1296 | ||
1297 | copy_from_pc( ptr + tmpcount, | |
1298 | ramBase+curBuffer+dataOffset, dataCount); | |
1299 | ||
1300 | tmpcount += dataCount; | |
1301 | ||
1302 | /* Point to next buffer */ | |
1303 | curBuffer = get_uint16(ramBase + curBuffer); | |
1304 | } | |
1305 | ||
1306 | skb->protocol = eth_type_trans(skb,dev); | |
1307 | /* Queue packet for network layer */ | |
1308 | netif_rx(skb); | |
1309 | ||
1da177e4 LT |
1310 | priv->stats.rx_packets++; |
1311 | priv->stats.rx_bytes += rcvLen; | |
1312 | ||
1313 | /* Got the packet, tell the adapter to skip it */ | |
1314 | wait_WOC(iobase); | |
1315 | writeb(NETWAVE_CMD_SRP, ramBase + NETWAVE_EREG_CB + 0); | |
1316 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 1); | |
1317 | DEBUG(3, "Packet reception ok\n"); | |
1318 | } | |
1319 | return 0; | |
1320 | } | |
1321 | ||
1322 | static int netwave_open(struct net_device *dev) { | |
1323 | netwave_private *priv = netdev_priv(dev); | |
fba395ee | 1324 | struct pcmcia_device *link = priv->p_dev; |
1da177e4 LT |
1325 | |
1326 | DEBUG(1, "netwave_open: starting.\n"); | |
1327 | ||
9940ec36 | 1328 | if (!pcmcia_dev_present(link)) |
1da177e4 LT |
1329 | return -ENODEV; |
1330 | ||
1331 | link->open++; | |
1332 | ||
1333 | netif_start_queue(dev); | |
1334 | netwave_reset(dev); | |
1335 | ||
1336 | return 0; | |
1337 | } | |
1338 | ||
1339 | static int netwave_close(struct net_device *dev) { | |
1340 | netwave_private *priv = netdev_priv(dev); | |
fba395ee | 1341 | struct pcmcia_device *link = priv->p_dev; |
1da177e4 LT |
1342 | |
1343 | DEBUG(1, "netwave_close: finishing.\n"); | |
1344 | ||
1345 | link->open--; | |
1346 | netif_stop_queue(dev); | |
1347 | ||
1348 | return 0; | |
1349 | } | |
1350 | ||
5d402e95 DB |
1351 | static struct pcmcia_device_id netwave_ids[] = { |
1352 | PCMCIA_DEVICE_PROD_ID12("Xircom", "CreditCard Netwave", 0x2e3ee845, 0x54e28a28), | |
1353 | PCMCIA_DEVICE_NULL, | |
1354 | }; | |
1355 | MODULE_DEVICE_TABLE(pcmcia, netwave_ids); | |
1356 | ||
1da177e4 LT |
1357 | static struct pcmcia_driver netwave_driver = { |
1358 | .owner = THIS_MODULE, | |
1359 | .drv = { | |
1360 | .name = "netwave_cs", | |
1361 | }, | |
15b99ac1 | 1362 | .probe = netwave_probe, |
cc3b4866 | 1363 | .remove = netwave_detach, |
5d402e95 | 1364 | .id_table = netwave_ids, |
98e4c28b DB |
1365 | .suspend = netwave_suspend, |
1366 | .resume = netwave_resume, | |
1da177e4 LT |
1367 | }; |
1368 | ||
1369 | static int __init init_netwave_cs(void) | |
1370 | { | |
1371 | return pcmcia_register_driver(&netwave_driver); | |
1372 | } | |
1373 | ||
1374 | static void __exit exit_netwave_cs(void) | |
1375 | { | |
1376 | pcmcia_unregister_driver(&netwave_driver); | |
1da177e4 LT |
1377 | } |
1378 | ||
1379 | module_init(init_netwave_cs); | |
1380 | module_exit(exit_netwave_cs); | |
1381 | ||
1382 | /* Set or clear the multicast filter for this adaptor. | |
1383 | num_addrs == -1 Promiscuous mode, receive all packets | |
1384 | num_addrs == 0 Normal mode, clear multicast list | |
1385 | num_addrs > 0 Multicast mode, receive normal and MC packets, and do | |
1386 | best-effort filtering. | |
1387 | */ | |
1388 | static void set_multicast_list(struct net_device *dev) | |
1389 | { | |
906da809 | 1390 | unsigned int iobase = dev->base_addr; |
1da177e4 LT |
1391 | netwave_private *priv = netdev_priv(dev); |
1392 | u_char __iomem * ramBase = priv->ramBase; | |
1393 | u_char rcvMode = 0; | |
1394 | ||
1395 | #ifdef PCMCIA_DEBUG | |
1396 | if (pc_debug > 2) { | |
1397 | static int old; | |
1398 | if (old != dev->mc_count) { | |
1399 | old = dev->mc_count; | |
1400 | DEBUG(0, "%s: setting Rx mode to %d addresses.\n", | |
1401 | dev->name, dev->mc_count); | |
1402 | } | |
1403 | } | |
1404 | #endif | |
1405 | ||
1406 | if (dev->mc_count || (dev->flags & IFF_ALLMULTI)) { | |
1407 | /* Multicast Mode */ | |
1408 | rcvMode = rxConfRxEna + rxConfAMP + rxConfBcast; | |
1409 | } else if (dev->flags & IFF_PROMISC) { | |
1410 | /* Promiscous mode */ | |
1411 | rcvMode = rxConfRxEna + rxConfPro + rxConfAMP + rxConfBcast; | |
1412 | } else { | |
1413 | /* Normal mode */ | |
1414 | rcvMode = rxConfRxEna + rxConfBcast; | |
1415 | } | |
1416 | ||
1417 | /* printk("netwave set_multicast_list: rcvMode to %x\n", rcvMode);*/ | |
1418 | /* Now set receive mode */ | |
1419 | wait_WOC(iobase); | |
1420 | writeb(NETWAVE_CMD_SRC, ramBase + NETWAVE_EREG_CB + 0); | |
1421 | writeb(rcvMode, ramBase + NETWAVE_EREG_CB + 1); | |
1422 | writeb(NETWAVE_CMD_EOC, ramBase + NETWAVE_EREG_CB + 2); | |
1423 | } | |
1424 | MODULE_LICENSE("GPL"); |