Root/drivers/net/wireless/arlan.h

1/*
2 * Copyright (C) 1997 Cullen Jennings
3 * Copyright (C) 1998 Elmer.Joandi@ut.ee, +37-255-13500
4 * GNU General Public License applies
5 */
6
7#include <linux/module.h>
8#include <linux/kernel.h>
9#include <linux/types.h>
10#include <linux/skbuff.h>
11#include <linux/if_ether.h> /* For the statistics structure. */
12#include <linux/if_arp.h> /* For ARPHRD_ETHER */
13#include <linux/ptrace.h>
14#include <linux/ioport.h>
15#include <linux/in.h>
16#include <linux/slab.h>
17#include <linux/string.h>
18#include <linux/timer.h>
19
20#include <linux/init.h>
21#include <linux/bitops.h>
22#include <asm/system.h>
23#include <asm/io.h>
24#include <linux/errno.h>
25#include <linux/delay.h>
26#include <linux/netdevice.h>
27#include <linux/etherdevice.h>
28
29
30//#define ARLAN_DEBUGGING 1
31
32#define ARLAN_PROC_INTERFACE
33#define MAX_ARLANS 4 /* not more than 4 ! */
34#define ARLAN_PROC_SHM_DUMP /* shows all card registers, makes driver way larger */
35
36#define ARLAN_MAX_MULTICAST_ADDRS 16
37#define ARLAN_RCV_CLEAN 0
38#define ARLAN_RCV_PROMISC 1
39#define ARLAN_RCV_CONTROL 2
40
41#ifdef CONFIG_PROC_FS
42extern int init_arlan_proc(void);
43extern void cleanup_arlan_proc(void);
44#else
45#define init_arlan_proc() ({ 0; })
46#define cleanup_arlan_proc() do { } while (0)
47#endif
48
49extern struct net_device *arlan_device[MAX_ARLANS];
50extern int arlan_debug;
51extern int arlan_entry_debug;
52extern int arlan_exit_debug;
53extern int testMemory;
54extern int arlan_command(struct net_device * dev, int command);
55 
56#define SIDUNKNOWN -1
57#define radioNodeIdUNKNOWN -1
58#define irqUNKNOWN 0
59#define debugUNKNOWN 0
60#define testMemoryUNKNOWN 1
61#define spreadingCodeUNKNOWN 0
62#define channelNumberUNKNOWN 0
63#define channelSetUNKNOWN 0
64#define systemIdUNKNOWN -1
65#define registrationModeUNKNOWN -1
66
67
68#define IFDEBUG( L ) if ( (L) & arlan_debug )
69#define ARLAN_FAKE_HDR_LEN 12
70
71#ifdef ARLAN_DEBUGGING
72    #define DEBUG 1
73    #define ARLAN_ENTRY_EXIT_DEBUGGING 1
74    #define ARLAN_DEBUG(a,b) printk(KERN_DEBUG a, b)
75#else
76    #define ARLAN_DEBUG(a,b)
77#endif
78
79#define ARLAN_SHMEM_SIZE 0x2000
80
81struct arlan_shmem
82{
83      /* Header Signature */
84      volatile char textRegion[48];
85      volatile u_char resetFlag;
86      volatile u_char diagnosticInfo;
87      volatile u_short diagnosticOffset;
88      volatile u_char _1[12];
89      volatile u_char lanCardNodeId[6];
90      volatile u_char broadcastAddress[6];
91      volatile u_char hardwareType;
92      volatile u_char majorHardwareVersion;
93      volatile u_char minorHardwareVersion;
94      volatile u_char radioModule;// shows EEPROM, can be overridden at 0x111
95      volatile u_char defaultChannelSet; // shows EEProm, can be overriiden at 0x10A
96      volatile u_char _2[47];
97      
98      /* Control/Status Block - 0x0080 */
99      volatile u_char interruptInProgress; /* not used by lancpu */
100      volatile u_char cntrlRegImage; /* not used by lancpu */
101      volatile u_char _3[13];
102      volatile u_char dumpByte;
103      volatile u_char commandByte; /* non-zero = active */
104      volatile u_char commandParameter[15];
105
106      /* Receive Status - 0x00a0 */
107      volatile u_char rxStatus; /* 1- data, 2-control, 0xff - registr change */
108      volatile u_char rxFrmType;
109      volatile u_short rxOffset;
110      volatile u_short rxLength;
111      volatile u_char rxSrc[6];
112      volatile u_char rxBroadcastFlag;
113      volatile u_char rxQuality;
114      volatile u_char scrambled;
115      volatile u_char _4[1];
116      
117      /* Transmit Status - 0x00b0 */
118      volatile u_char txStatus;
119      volatile u_char txAckQuality;
120      volatile u_char numRetries;
121      volatile u_char _5[14];
122      volatile u_char registeredRouter[6];
123      volatile u_char backboneRouter[6];
124      volatile u_char registrationStatus;
125      volatile u_char configuredStatusFlag;
126      volatile u_char _6[1];
127      volatile u_char ultimateDestAddress[6];
128      volatile u_char immedDestAddress[6];
129      volatile u_char immedSrcAddress[6];
130      volatile u_short rxSequenceNumber;
131      volatile u_char assignedLocaltalkAddress;
132      volatile u_char _7[27];
133
134      /* System Parameter Block */
135
136      /* - Driver Parameters (Novell Specific) */
137
138      volatile u_short txTimeout;
139      volatile u_short transportTime;
140      volatile u_char _8[4];
141
142      /* - Configuration Parameters */
143      volatile u_char irqLevel;
144      volatile u_char spreadingCode;
145      volatile u_char channelSet;
146      volatile u_char channelNumber;
147      volatile u_short radioNodeId;
148      volatile u_char _9[2];
149      volatile u_char scramblingDisable;
150      volatile u_char radioType;
151      volatile u_short routerId;
152      volatile u_char _10[9];
153      volatile u_char txAttenuation;
154      volatile u_char systemId[4];
155      volatile u_short globalChecksum;
156      volatile u_char _11[4];
157      volatile u_short maxDatagramSize;
158      volatile u_short maxFrameSize;
159      volatile u_char maxRetries;
160      volatile u_char receiveMode;
161      volatile u_char priority;
162      volatile u_char rootOrRepeater;
163      volatile u_char specifiedRouter[6];
164      volatile u_short fastPollPeriod;
165      volatile u_char pollDecay;
166      volatile u_char fastPollDelay[2];
167      volatile u_char arlThreshold;
168      volatile u_char arlDecay;
169      volatile u_char _12[1];
170      volatile u_short specRouterTimeout;
171      volatile u_char _13[5];
172
173      /* Scrambled Area */
174      volatile u_char SID[4];
175      volatile u_char encryptionKey[12];
176      volatile u_char _14[2];
177      volatile u_char waitTime[2];
178      volatile u_char lParameter[2];
179      volatile u_char _15[3];
180      volatile u_short headerSize;
181      volatile u_short sectionChecksum;
182
183      volatile u_char registrationMode;
184      volatile u_char registrationFill;
185      volatile u_short pollPeriod;
186      volatile u_short refreshPeriod;
187      volatile u_char name[16];
188      volatile u_char NID[6];
189      volatile u_char localTalkAddress;
190      volatile u_char codeFormat;
191      volatile u_char numChannels;
192      volatile u_char channel1;
193      volatile u_char channel2;
194      volatile u_char channel3;
195      volatile u_char channel4;
196      volatile u_char SSCode[59];
197
198      volatile u_char _16[0xC0];
199      volatile u_short auxCmd;
200      volatile u_char dumpPtr[4];
201      volatile u_char dumpVal;
202      volatile u_char _17[0x6A];
203      volatile u_char wireTest;
204      volatile u_char _18[14];
205
206      /* Statistics Block - 0x0300 */
207      volatile u_char hostcpuLock;
208      volatile u_char lancpuLock;
209      volatile u_char resetTime[18];
210      
211      volatile u_char numDatagramsTransmitted[4];
212      volatile u_char numReTransmissions[4];
213      volatile u_char numFramesDiscarded[4];
214      volatile u_char numDatagramsReceived[4];
215      volatile u_char numDuplicateReceivedFrames[4];
216      volatile u_char numDatagramsDiscarded[4];
217      
218      volatile u_short maxNumReTransmitDatagram;
219      volatile u_short maxNumReTransmitFrames;
220      volatile u_short maxNumConsecutiveDuplicateFrames;
221      /* misaligned here so we have to go to characters */
222     
223      volatile u_char numBytesTransmitted[4];
224      volatile u_char numBytesReceived[4];
225      volatile u_char numCRCErrors[4];
226      volatile u_char numLengthErrors[4];
227      volatile u_char numAbortErrors[4];
228      volatile u_char numTXUnderruns[4];
229      volatile u_char numRXOverruns[4];
230      volatile u_char numHoldOffs[4];
231      volatile u_char numFramesTransmitted[4];
232      volatile u_char numFramesReceived[4];
233      volatile u_char numReceiveFramesLost[4];
234      volatile u_char numRXBufferOverflows[4];
235      volatile u_char numFramesDiscardedAddrMismatch[4];
236      volatile u_char numFramesDiscardedSIDMismatch[4];
237      volatile u_char numPollsTransmistted[4];
238      volatile u_char numPollAcknowledges[4];
239      volatile u_char numStatusTimeouts[4];
240      volatile u_char numNACKReceived[4];
241
242      volatile u_char _19[0x86];
243
244      volatile u_char txBuffer[0x800];
245      volatile u_char rxBuffer[0x800];
246
247      volatile u_char _20[0x800];
248      volatile u_char _21[0x3fb];
249      volatile u_char configStatus;
250      volatile u_char _22;
251      volatile u_char progIOCtrl;
252      volatile u_char shareMBase;
253      volatile u_char controlRegister;
254};
255
256struct arlan_conf_stru {
257      int spreadingCode;
258      int channelSet;
259      int channelNumber;
260      int scramblingDisable;
261      int txAttenuation;
262      int systemId;
263      int maxDatagramSize;
264      int maxFrameSize;
265      int maxRetries;
266      int receiveMode;
267      int priority;
268      int rootOrRepeater;
269      int SID;
270      int radioNodeId;
271      int registrationMode;
272      int registrationFill;
273      int localTalkAddress;
274      int codeFormat;
275      int numChannels;
276      int channel1;
277      int channel2;
278      int channel3;
279      int channel4;
280      int txClear;
281      int txRetries;
282      int txRouting;
283      int txScrambled;
284      int rxParameter;
285      int txTimeoutMs;
286      int txAckTimeoutMs;
287      int waitCardTimeout;
288      int waitTime;
289      int lParameter;
290      int _15;
291      int headerSize;
292      int retries;
293      int tx_delay_ms;
294      int waitReTransmitPacketMaxSize;
295      int ReTransmitPacketMaxSize;
296      int fastReTransCount;
297      int driverRetransmissions;
298      int registrationInterrupts;
299      int hardwareType;
300      int radioType;
301      int writeRadioType;
302      int writeEEPROM;
303      char siteName[17];
304      int measure_rate;
305      int in_speed;
306      int out_speed;
307      int in_speed10;
308      int out_speed10;
309      int in_speed_max;
310      int out_speed_max;
311      int pre_Command_Wait;
312      int rx_tweak1;
313      int rx_tweak2;
314      int tx_queue_len;
315};
316
317extern struct arlan_conf_stru arlan_conf[MAX_ARLANS];
318
319struct TxParam
320{
321      volatile short offset;
322      volatile short length;
323      volatile u_char dest[6];
324      volatile unsigned char clear;
325      volatile unsigned char retries;
326      volatile unsigned char routing;
327      volatile unsigned char scrambled;
328};
329
330#define TX_RING_SIZE 2
331/* Information that need to be kept for each board. */
332struct arlan_private {
333      struct arlan_shmem __iomem * card;
334      struct arlan_shmem * conf;
335
336      struct arlan_conf_stru * Conf;
337      int bad;
338      int reset;
339      unsigned long lastReset;
340      struct timer_list timer;
341      struct timer_list tx_delay_timer;
342      struct timer_list tx_retry_timer;
343      struct timer_list rx_check_timer;
344
345      int registrationLostCount;
346      int reRegisterExp;
347      int irq_test_done;
348
349      struct TxParam txRing[TX_RING_SIZE];
350      char reTransmitBuff[0x800];
351      int txLast;
352      unsigned ReTransmitRequested;
353      unsigned long tx_done_delayed;
354      unsigned long registrationLastSeen;
355
356      unsigned long tx_last_sent;
357      unsigned long tx_last_cleared;
358      unsigned long retransmissions;
359      unsigned long interrupt_ack_requested;
360      spinlock_t lock;
361      unsigned long waiting_command_mask;
362      unsigned long card_polling_interval;
363      unsigned long last_command_buff_free_time;
364
365      int under_reset;
366      int under_config;
367      int rx_command_given;
368      int tx_command_given;
369      unsigned long interrupt_processing_active;
370      unsigned long last_rx_int_ack_time;
371      unsigned long in_bytes;
372      unsigned long out_bytes;
373      unsigned long in_time;
374      unsigned long out_time;
375      unsigned long in_time10;
376      unsigned long out_time10;
377      unsigned long in_bytes10;
378      unsigned long out_bytes10;
379      int init_etherdev_alloc;
380};
381
382
383
384#define ARLAN_CLEAR 0x00
385#define ARLAN_RESET 0x01
386#define ARLAN_CHANNEL_ATTENTION 0x02
387#define ARLAN_INTERRUPT_ENABLE 0x04
388#define ARLAN_CLEAR_INTERRUPT 0x08
389#define ARLAN_POWER 0x40
390#define ARLAN_ACCESS 0x80
391
392#define ARLAN_COM_CONF 0x01
393#define ARLAN_COM_RX_ENABLE 0x03
394#define ARLAN_COM_RX_ABORT 0x04
395#define ARLAN_COM_TX_ENABLE 0x05
396#define ARLAN_COM_TX_ABORT 0x06
397#define ARLAN_COM_NOP 0x07
398#define ARLAN_COM_STANDBY 0x08
399#define ARLAN_COM_ACTIVATE 0x09
400#define ARLAN_COM_GOTO_SLOW_POLL 0x0a
401#define ARLAN_COM_INT 0x80
402
403
404#define TXLAST(dev) (((struct arlan_private *)netdev_priv(dev))->txRing[((struct arlan_private *)netdev_priv(dev))->txLast])
405#define TXHEAD(dev) (((struct arlan_private *)netdev_priv(dev))->txRing[0])
406#define TXTAIL(dev) (((struct arlan_private *)netdev_priv(dev))->txRing[1])
407
408#define TXBuffStart(dev) offsetof(struct arlan_shmem, txBuffer)
409#define TXBuffEnd(dev) offsetof(struct arlan_shmem, xxBuffer)
410 
411#define READSHM(to,from,atype) {\
412    atype tmp;\
413    memcpy_fromio(&(tmp),&(from),sizeof(atype));\
414    to = tmp;\
415    }
416
417#define READSHMEM(from,atype)\
418    atype from; \
419    READSHM(from, arlan->from, atype);
420
421#define WRITESHM(to,from,atype) \
422    { atype tmpSHM = from;\
423    memcpy_toio(&(to),&tmpSHM,sizeof(atype));\
424    }
425
426#define DEBUGSHM(levelSHM,stringSHM,stuff,atype) \
427    { atype tmpSHM; \
428        memcpy_fromio(&tmpSHM,&(stuff),sizeof(atype));\
429        IFDEBUG(levelSHM) printk(stringSHM,tmpSHM);\
430    }
431
432#define WRITESHMB(to, val) \
433    writeb(val,&(to))
434#define READSHMB(to) \
435    readb(&(to))
436#define WRITESHMS(to, val) \
437    writew(val,&(to))
438#define READSHMS(to) \
439    readw(&(to))
440#define WRITESHMI(to, val) \
441    writel(val,&(to))
442#define READSHMI(to) \
443    readl(&(to))
444
445
446
447
448
449#define registrationBad(dev)\
450   ( ( READSHMB(((struct arlan_private *)netdev_priv(dev))->card->registrationMode) > 0) && \
451     ( READSHMB(((struct arlan_private *)netdev_priv(dev))->card->registrationStatus) == 0) )
452
453
454#define readControlRegister(dev)\
455     READSHMB(((struct arlan_private *)netdev_priv(dev))->card->cntrlRegImage)
456
457#define writeControlRegister(dev, v){\
458   WRITESHMB(((struct arlan_private *)netdev_priv(dev))->card->cntrlRegImage ,((v) &0xF) );\
459   WRITESHMB(((struct arlan_private *)netdev_priv(dev))->card->controlRegister ,(v) );}
460
461
462#define arlan_interrupt_lancpu(dev) {\
463   int cr; \
464   \
465   cr = readControlRegister(dev);\
466   if (cr & ARLAN_CHANNEL_ATTENTION){ \
467      writeControlRegister(dev, (cr & ~ARLAN_CHANNEL_ATTENTION));\
468   }else \
469      writeControlRegister(dev, (cr | ARLAN_CHANNEL_ATTENTION));\
470}
471
472#define clearChannelAttention(dev){ \
473   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_CHANNEL_ATTENTION);}
474#define setHardwareReset(dev) {\
475   writeControlRegister(dev,readControlRegister(dev) | ARLAN_RESET);}
476#define clearHardwareReset(dev) {\
477   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_RESET);}
478#define setInterruptEnable(dev){\
479   writeControlRegister(dev,readControlRegister(dev) | ARLAN_INTERRUPT_ENABLE) ;}
480#define clearInterruptEnable(dev){\
481   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_INTERRUPT_ENABLE) ;}
482#define setClearInterrupt(dev){\
483   writeControlRegister(dev,readControlRegister(dev) | ARLAN_CLEAR_INTERRUPT) ;}
484#define clearClearInterrupt(dev){\
485   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_CLEAR_INTERRUPT);}
486#define setPowerOff(dev){\
487   writeControlRegister(dev,readControlRegister(dev) | (ARLAN_POWER && ARLAN_ACCESS));\
488   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_ACCESS);}
489#define setPowerOn(dev){\
490   writeControlRegister(dev,readControlRegister(dev) & ~(ARLAN_POWER)); }
491#define arlan_lock_card_access(dev){\
492   writeControlRegister(dev,readControlRegister(dev) & ~ARLAN_ACCESS);}
493#define arlan_unlock_card_access(dev){\
494   writeControlRegister(dev,readControlRegister(dev) | ARLAN_ACCESS ); }
495
496
497
498
499#define ARLAN_COMMAND_RX 0x000001
500#define ARLAN_COMMAND_NOOP 0x000002
501#define ARLAN_COMMAND_NOOPINT 0x000004
502#define ARLAN_COMMAND_TX 0x000008
503#define ARLAN_COMMAND_CONF 0x000010
504#define ARLAN_COMMAND_RESET 0x000020
505#define ARLAN_COMMAND_TX_ABORT 0x000040
506#define ARLAN_COMMAND_RX_ABORT 0x000080
507#define ARLAN_COMMAND_POWERDOWN 0x000100
508#define ARLAN_COMMAND_POWERUP 0x000200
509#define ARLAN_COMMAND_SLOW_POLL 0x000400
510#define ARLAN_COMMAND_ACTIVATE 0x000800
511#define ARLAN_COMMAND_INT_ACK 0x001000
512#define ARLAN_COMMAND_INT_ENABLE 0x002000
513#define ARLAN_COMMAND_WAIT_NOW 0x004000
514#define ARLAN_COMMAND_LONG_WAIT_NOW 0x008000
515#define ARLAN_COMMAND_STANDBY 0x010000
516#define ARLAN_COMMAND_INT_RACK 0x020000
517#define ARLAN_COMMAND_INT_RENABLE 0x040000
518#define ARLAN_COMMAND_CONF_WAIT 0x080000
519#define ARLAN_COMMAND_TBUSY_CLEAR 0x100000
520#define ARLAN_COMMAND_CLEAN_AND_CONF (ARLAN_COMMAND_TX_ABORT\
521                    | ARLAN_COMMAND_RX_ABORT\
522                    | ARLAN_COMMAND_CONF)
523#define ARLAN_COMMAND_CLEAN_AND_RESET (ARLAN_COMMAND_TX_ABORT\
524                    | ARLAN_COMMAND_RX_ABORT\
525                    | ARLAN_COMMAND_RESET)
526
527
528 
529#define ARLAN_DEBUG_CHAIN_LOCKS 0x00001
530#define ARLAN_DEBUG_RESET 0x00002
531#define ARLAN_DEBUG_TIMING 0x00004
532#define ARLAN_DEBUG_CARD_STATE 0x00008
533#define ARLAN_DEBUG_TX_CHAIN 0x00010
534#define ARLAN_DEBUG_MULTICAST 0x00020
535#define ARLAN_DEBUG_HEADER_DUMP 0x00040
536#define ARLAN_DEBUG_INTERRUPT 0x00080
537#define ARLAN_DEBUG_STARTUP 0x00100
538#define ARLAN_DEBUG_SHUTDOWN 0x00200
539 
540

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