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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * WaveLAN ISA driver | |
3 | * | |
4 | * Jean II - HPLB '96 | |
5 | * | |
6 | * Reorganisation and extension of the driver. | |
7 | * Original copyright follows (also see the end of this file). | |
8 | * See wavelan.p.h for details. | |
9 | * | |
10 | * | |
11 | * | |
12 | * AT&T GIS (nee NCR) WaveLAN card: | |
13 | * An Ethernet-like radio transceiver | |
14 | * controlled by an Intel 82586 coprocessor. | |
15 | */ | |
16 | ||
17 | #include "wavelan.p.h" /* Private header */ | |
18 | ||
19 | /************************* MISC SUBROUTINES **************************/ | |
20 | /* | |
21 | * Subroutines which won't fit in one of the following category | |
22 | * (WaveLAN modem or i82586) | |
23 | */ | |
24 | ||
25 | /*------------------------------------------------------------------*/ | |
26 | /* | |
27 | * Translate irq number to PSA irq parameter | |
28 | */ | |
29 | static u8 wv_irq_to_psa(int irq) | |
30 | { | |
31 | if (irq < 0 || irq >= NELS(irqvals)) | |
32 | return 0; | |
33 | ||
34 | return irqvals[irq]; | |
35 | } | |
36 | ||
37 | /*------------------------------------------------------------------*/ | |
38 | /* | |
39 | * Translate PSA irq parameter to irq number | |
40 | */ | |
41 | static int __init wv_psa_to_irq(u8 irqval) | |
42 | { | |
43 | int irq; | |
44 | ||
45 | for (irq = 0; irq < NELS(irqvals); irq++) | |
46 | if (irqvals[irq] == irqval) | |
47 | return irq; | |
48 | ||
49 | return -1; | |
50 | } | |
51 | ||
52 | #ifdef STRUCT_CHECK | |
53 | /*------------------------------------------------------------------*/ | |
54 | /* | |
55 | * Sanity routine to verify the sizes of the various WaveLAN interface | |
56 | * structures. | |
57 | */ | |
58 | static char *wv_struct_check(void) | |
59 | { | |
60 | #define SC(t,s,n) if (sizeof(t) != s) return(n); | |
61 | ||
62 | SC(psa_t, PSA_SIZE, "psa_t"); | |
63 | SC(mmw_t, MMW_SIZE, "mmw_t"); | |
64 | SC(mmr_t, MMR_SIZE, "mmr_t"); | |
65 | SC(ha_t, HA_SIZE, "ha_t"); | |
66 | ||
67 | #undef SC | |
68 | ||
69 | return ((char *) NULL); | |
70 | } /* wv_struct_check */ | |
71 | #endif /* STRUCT_CHECK */ | |
72 | ||
73 | /********************* HOST ADAPTER SUBROUTINES *********************/ | |
74 | /* | |
75 | * Useful subroutines to manage the WaveLAN ISA interface | |
76 | * | |
77 | * One major difference with the PCMCIA hardware (except the port mapping) | |
78 | * is that we have to keep the state of the Host Control Register | |
79 | * because of the interrupt enable & bus size flags. | |
80 | */ | |
81 | ||
82 | /*------------------------------------------------------------------*/ | |
83 | /* | |
84 | * Read from card's Host Adaptor Status Register. | |
85 | */ | |
86 | static inline u16 hasr_read(unsigned long ioaddr) | |
87 | { | |
88 | return (inw(HASR(ioaddr))); | |
89 | } /* hasr_read */ | |
90 | ||
91 | /*------------------------------------------------------------------*/ | |
92 | /* | |
93 | * Write to card's Host Adapter Command Register. | |
94 | */ | |
95 | static inline void hacr_write(unsigned long ioaddr, u16 hacr) | |
96 | { | |
97 | outw(hacr, HACR(ioaddr)); | |
98 | } /* hacr_write */ | |
99 | ||
100 | /*------------------------------------------------------------------*/ | |
101 | /* | |
102 | * Write to card's Host Adapter Command Register. Include a delay for | |
103 | * those times when it is needed. | |
104 | */ | |
105 | static inline void hacr_write_slow(unsigned long ioaddr, u16 hacr) | |
106 | { | |
107 | hacr_write(ioaddr, hacr); | |
108 | /* delay might only be needed sometimes */ | |
109 | mdelay(1); | |
110 | } /* hacr_write_slow */ | |
111 | ||
112 | /*------------------------------------------------------------------*/ | |
113 | /* | |
114 | * Set the channel attention bit. | |
115 | */ | |
116 | static inline void set_chan_attn(unsigned long ioaddr, u16 hacr) | |
117 | { | |
118 | hacr_write(ioaddr, hacr | HACR_CA); | |
119 | } /* set_chan_attn */ | |
120 | ||
121 | /*------------------------------------------------------------------*/ | |
122 | /* | |
123 | * Reset, and then set host adaptor into default mode. | |
124 | */ | |
125 | static inline void wv_hacr_reset(unsigned long ioaddr) | |
126 | { | |
127 | hacr_write_slow(ioaddr, HACR_RESET); | |
128 | hacr_write(ioaddr, HACR_DEFAULT); | |
129 | } /* wv_hacr_reset */ | |
130 | ||
131 | /*------------------------------------------------------------------*/ | |
132 | /* | |
133 | * Set the I/O transfer over the ISA bus to 8-bit mode | |
134 | */ | |
135 | static inline void wv_16_off(unsigned long ioaddr, u16 hacr) | |
136 | { | |
137 | hacr &= ~HACR_16BITS; | |
138 | hacr_write(ioaddr, hacr); | |
139 | } /* wv_16_off */ | |
140 | ||
141 | /*------------------------------------------------------------------*/ | |
142 | /* | |
143 | * Set the I/O transfer over the ISA bus to 8-bit mode | |
144 | */ | |
145 | static inline void wv_16_on(unsigned long ioaddr, u16 hacr) | |
146 | { | |
147 | hacr |= HACR_16BITS; | |
148 | hacr_write(ioaddr, hacr); | |
149 | } /* wv_16_on */ | |
150 | ||
151 | /*------------------------------------------------------------------*/ | |
152 | /* | |
153 | * Disable interrupts on the WaveLAN hardware. | |
154 | * (called by wv_82586_stop()) | |
155 | */ | |
156 | static inline void wv_ints_off(struct net_device * dev) | |
157 | { | |
158 | net_local *lp = (net_local *) dev->priv; | |
159 | unsigned long ioaddr = dev->base_addr; | |
160 | ||
161 | lp->hacr &= ~HACR_INTRON; | |
162 | hacr_write(ioaddr, lp->hacr); | |
163 | } /* wv_ints_off */ | |
164 | ||
165 | /*------------------------------------------------------------------*/ | |
166 | /* | |
167 | * Enable interrupts on the WaveLAN hardware. | |
168 | * (called by wv_hw_reset()) | |
169 | */ | |
170 | static inline void wv_ints_on(struct net_device * dev) | |
171 | { | |
172 | net_local *lp = (net_local *) dev->priv; | |
173 | unsigned long ioaddr = dev->base_addr; | |
174 | ||
175 | lp->hacr |= HACR_INTRON; | |
176 | hacr_write(ioaddr, lp->hacr); | |
177 | } /* wv_ints_on */ | |
178 | ||
179 | /******************* MODEM MANAGEMENT SUBROUTINES *******************/ | |
180 | /* | |
181 | * Useful subroutines to manage the modem of the WaveLAN | |
182 | */ | |
183 | ||
184 | /*------------------------------------------------------------------*/ | |
185 | /* | |
186 | * Read the Parameter Storage Area from the WaveLAN card's memory | |
187 | */ | |
188 | /* | |
189 | * Read bytes from the PSA. | |
190 | */ | |
191 | static void psa_read(unsigned long ioaddr, u16 hacr, int o, /* offset in PSA */ | |
192 | u8 * b, /* buffer to fill */ | |
193 | int n) | |
194 | { /* size to read */ | |
195 | wv_16_off(ioaddr, hacr); | |
196 | ||
197 | while (n-- > 0) { | |
198 | outw(o, PIOR2(ioaddr)); | |
199 | o++; | |
200 | *b++ = inb(PIOP2(ioaddr)); | |
201 | } | |
202 | ||
203 | wv_16_on(ioaddr, hacr); | |
204 | } /* psa_read */ | |
205 | ||
206 | /*------------------------------------------------------------------*/ | |
207 | /* | |
208 | * Write the Parameter Storage Area to the WaveLAN card's memory. | |
209 | */ | |
210 | static void psa_write(unsigned long ioaddr, u16 hacr, int o, /* Offset in PSA */ | |
211 | u8 * b, /* Buffer in memory */ | |
212 | int n) | |
213 | { /* Length of buffer */ | |
214 | int count = 0; | |
215 | ||
216 | wv_16_off(ioaddr, hacr); | |
217 | ||
218 | while (n-- > 0) { | |
219 | outw(o, PIOR2(ioaddr)); | |
220 | o++; | |
221 | ||
222 | outb(*b, PIOP2(ioaddr)); | |
223 | b++; | |
224 | ||
225 | /* Wait for the memory to finish its write cycle */ | |
226 | count = 0; | |
227 | while ((count++ < 100) && | |
228 | (hasr_read(ioaddr) & HASR_PSA_BUSY)) mdelay(1); | |
229 | } | |
230 | ||
231 | wv_16_on(ioaddr, hacr); | |
232 | } /* psa_write */ | |
233 | ||
234 | #ifdef SET_PSA_CRC | |
235 | /*------------------------------------------------------------------*/ | |
236 | /* | |
237 | * Calculate the PSA CRC | |
238 | * Thanks to Valster, Nico <NVALSTER@wcnd.nl.lucent.com> for the code | |
239 | * NOTE: By specifying a length including the CRC position the | |
240 | * returned value should be zero. (i.e. a correct checksum in the PSA) | |
241 | * | |
242 | * The Windows drivers don't use the CRC, but the AP and the PtP tool | |
243 | * depend on it. | |
244 | */ | |
245 | static inline u16 psa_crc(u8 * psa, /* The PSA */ | |
246 | int size) | |
247 | { /* Number of short for CRC */ | |
248 | int byte_cnt; /* Loop on the PSA */ | |
249 | u16 crc_bytes = 0; /* Data in the PSA */ | |
250 | int bit_cnt; /* Loop on the bits of the short */ | |
251 | ||
252 | for (byte_cnt = 0; byte_cnt < size; byte_cnt++) { | |
253 | crc_bytes ^= psa[byte_cnt]; /* Its an xor */ | |
254 | ||
255 | for (bit_cnt = 1; bit_cnt < 9; bit_cnt++) { | |
256 | if (crc_bytes & 0x0001) | |
257 | crc_bytes = (crc_bytes >> 1) ^ 0xA001; | |
258 | else | |
259 | crc_bytes >>= 1; | |
260 | } | |
261 | } | |
262 | ||
263 | return crc_bytes; | |
264 | } /* psa_crc */ | |
265 | #endif /* SET_PSA_CRC */ | |
266 | ||
267 | /*------------------------------------------------------------------*/ | |
268 | /* | |
269 | * update the checksum field in the Wavelan's PSA | |
270 | */ | |
271 | static void update_psa_checksum(struct net_device * dev, unsigned long ioaddr, u16 hacr) | |
272 | { | |
273 | #ifdef SET_PSA_CRC | |
274 | psa_t psa; | |
275 | u16 crc; | |
276 | ||
277 | /* read the parameter storage area */ | |
278 | psa_read(ioaddr, hacr, 0, (unsigned char *) &psa, sizeof(psa)); | |
279 | ||
280 | /* update the checksum */ | |
281 | crc = psa_crc((unsigned char *) &psa, | |
282 | sizeof(psa) - sizeof(psa.psa_crc[0]) - | |
283 | sizeof(psa.psa_crc[1]) | |
284 | - sizeof(psa.psa_crc_status)); | |
285 | ||
286 | psa.psa_crc[0] = crc & 0xFF; | |
287 | psa.psa_crc[1] = (crc & 0xFF00) >> 8; | |
288 | ||
289 | /* Write it ! */ | |
290 | psa_write(ioaddr, hacr, (char *) &psa.psa_crc - (char *) &psa, | |
291 | (unsigned char *) &psa.psa_crc, 2); | |
292 | ||
293 | #ifdef DEBUG_IOCTL_INFO | |
294 | printk(KERN_DEBUG "%s: update_psa_checksum(): crc = 0x%02x%02x\n", | |
295 | dev->name, psa.psa_crc[0], psa.psa_crc[1]); | |
296 | ||
297 | /* Check again (luxury !) */ | |
298 | crc = psa_crc((unsigned char *) &psa, | |
299 | sizeof(psa) - sizeof(psa.psa_crc_status)); | |
300 | ||
301 | if (crc != 0) | |
302 | printk(KERN_WARNING | |
303 | "%s: update_psa_checksum(): CRC does not agree with PSA data (even after recalculating)\n", | |
304 | dev->name); | |
305 | #endif /* DEBUG_IOCTL_INFO */ | |
306 | #endif /* SET_PSA_CRC */ | |
307 | } /* update_psa_checksum */ | |
308 | ||
309 | /*------------------------------------------------------------------*/ | |
310 | /* | |
311 | * Write 1 byte to the MMC. | |
312 | */ | |
313 | static inline void mmc_out(unsigned long ioaddr, u16 o, u8 d) | |
314 | { | |
315 | int count = 0; | |
316 | ||
317 | /* Wait for MMC to go idle */ | |
318 | while ((count++ < 100) && (inw(HASR(ioaddr)) & HASR_MMC_BUSY)) | |
319 | udelay(10); | |
320 | ||
321 | outw((u16) (((u16) d << 8) | (o << 1) | 1), MMCR(ioaddr)); | |
322 | } | |
323 | ||
324 | /*------------------------------------------------------------------*/ | |
325 | /* | |
326 | * Routine to write bytes to the Modem Management Controller. | |
327 | * We start at the end because it is the way it should be! | |
328 | */ | |
329 | static inline void mmc_write(unsigned long ioaddr, u8 o, u8 * b, int n) | |
330 | { | |
331 | o += n; | |
332 | b += n; | |
333 | ||
334 | while (n-- > 0) | |
335 | mmc_out(ioaddr, --o, *(--b)); | |
336 | } /* mmc_write */ | |
337 | ||
338 | /*------------------------------------------------------------------*/ | |
339 | /* | |
340 | * Read a byte from the MMC. | |
341 | * Optimised version for 1 byte, avoid using memory. | |
342 | */ | |
343 | static inline u8 mmc_in(unsigned long ioaddr, u16 o) | |
344 | { | |
345 | int count = 0; | |
346 | ||
347 | while ((count++ < 100) && (inw(HASR(ioaddr)) & HASR_MMC_BUSY)) | |
348 | udelay(10); | |
349 | outw(o << 1, MMCR(ioaddr)); | |
350 | ||
351 | while ((count++ < 100) && (inw(HASR(ioaddr)) & HASR_MMC_BUSY)) | |
352 | udelay(10); | |
353 | return (u8) (inw(MMCR(ioaddr)) >> 8); | |
354 | } | |
355 | ||
356 | /*------------------------------------------------------------------*/ | |
357 | /* | |
358 | * Routine to read bytes from the Modem Management Controller. | |
359 | * The implementation is complicated by a lack of address lines, | |
360 | * which prevents decoding of the low-order bit. | |
361 | * (code has just been moved in the above function) | |
362 | * We start at the end because it is the way it should be! | |
363 | */ | |
364 | static inline void mmc_read(unsigned long ioaddr, u8 o, u8 * b, int n) | |
365 | { | |
366 | o += n; | |
367 | b += n; | |
368 | ||
369 | while (n-- > 0) | |
370 | *(--b) = mmc_in(ioaddr, --o); | |
371 | } /* mmc_read */ | |
372 | ||
373 | /*------------------------------------------------------------------*/ | |
374 | /* | |
375 | * Get the type of encryption available. | |
376 | */ | |
377 | static inline int mmc_encr(unsigned long ioaddr) | |
378 | { /* I/O port of the card */ | |
379 | int temp; | |
380 | ||
381 | temp = mmc_in(ioaddr, mmroff(0, mmr_des_avail)); | |
382 | if ((temp != MMR_DES_AVAIL_DES) && (temp != MMR_DES_AVAIL_AES)) | |
383 | return 0; | |
384 | else | |
385 | return temp; | |
386 | } | |
387 | ||
388 | /*------------------------------------------------------------------*/ | |
389 | /* | |
390 | * Wait for the frequency EEPROM to complete a command. | |
391 | * I hope this one will be optimally inlined. | |
392 | */ | |
393 | static inline void fee_wait(unsigned long ioaddr, /* I/O port of the card */ | |
394 | int delay, /* Base delay to wait for */ | |
395 | int number) | |
396 | { /* Number of time to wait */ | |
397 | int count = 0; /* Wait only a limited time */ | |
398 | ||
399 | while ((count++ < number) && | |
400 | (mmc_in(ioaddr, mmroff(0, mmr_fee_status)) & | |
401 | MMR_FEE_STATUS_BUSY)) udelay(delay); | |
402 | } | |
403 | ||
404 | /*------------------------------------------------------------------*/ | |
405 | /* | |
406 | * Read bytes from the Frequency EEPROM (frequency select cards). | |
407 | */ | |
408 | static void fee_read(unsigned long ioaddr, /* I/O port of the card */ | |
409 | u16 o, /* destination offset */ | |
410 | u16 * b, /* data buffer */ | |
411 | int n) | |
412 | { /* number of registers */ | |
413 | b += n; /* Position at the end of the area */ | |
414 | ||
415 | /* Write the address */ | |
416 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n - 1); | |
417 | ||
418 | /* Loop on all buffer */ | |
419 | while (n-- > 0) { | |
420 | /* Write the read command */ | |
421 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), | |
422 | MMW_FEE_CTRL_READ); | |
423 | ||
424 | /* Wait until EEPROM is ready (should be quick). */ | |
425 | fee_wait(ioaddr, 10, 100); | |
426 | ||
427 | /* Read the value. */ | |
428 | *--b = ((mmc_in(ioaddr, mmroff(0, mmr_fee_data_h)) << 8) | | |
429 | mmc_in(ioaddr, mmroff(0, mmr_fee_data_l))); | |
430 | } | |
431 | } | |
432 | ||
433 | #ifdef WIRELESS_EXT /* if the wireless extension exists in the kernel */ | |
434 | ||
435 | /*------------------------------------------------------------------*/ | |
436 | /* | |
437 | * Write bytes from the Frequency EEPROM (frequency select cards). | |
438 | * This is a bit complicated, because the frequency EEPROM has to | |
439 | * be unprotected and the write enabled. | |
440 | * Jean II | |
441 | */ | |
442 | static void fee_write(unsigned long ioaddr, /* I/O port of the card */ | |
443 | u16 o, /* destination offset */ | |
444 | u16 * b, /* data buffer */ | |
445 | int n) | |
446 | { /* number of registers */ | |
447 | b += n; /* Position at the end of the area. */ | |
448 | ||
449 | #ifdef EEPROM_IS_PROTECTED /* disabled */ | |
450 | #ifdef DOESNT_SEEM_TO_WORK /* disabled */ | |
451 | /* Ask to read the protected register */ | |
452 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRREAD); | |
453 | ||
454 | fee_wait(ioaddr, 10, 100); | |
455 | ||
456 | /* Read the protected register. */ | |
457 | printk("Protected 2: %02X-%02X\n", | |
458 | mmc_in(ioaddr, mmroff(0, mmr_fee_data_h)), | |
459 | mmc_in(ioaddr, mmroff(0, mmr_fee_data_l))); | |
460 | #endif /* DOESNT_SEEM_TO_WORK */ | |
461 | ||
462 | /* Enable protected register. */ | |
463 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN); | |
464 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PREN); | |
465 | ||
466 | fee_wait(ioaddr, 10, 100); | |
467 | ||
468 | /* Unprotect area. */ | |
469 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n); | |
470 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE); | |
471 | #ifdef DOESNT_SEEM_TO_WORK /* disabled */ | |
472 | /* or use: */ | |
473 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRCLEAR); | |
474 | #endif /* DOESNT_SEEM_TO_WORK */ | |
475 | ||
476 | fee_wait(ioaddr, 10, 100); | |
477 | #endif /* EEPROM_IS_PROTECTED */ | |
478 | ||
479 | /* Write enable. */ | |
480 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN); | |
481 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WREN); | |
482 | ||
483 | fee_wait(ioaddr, 10, 100); | |
484 | ||
485 | /* Write the EEPROM address. */ | |
486 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n - 1); | |
487 | ||
488 | /* Loop on all buffer */ | |
489 | while (n-- > 0) { | |
490 | /* Write the value. */ | |
491 | mmc_out(ioaddr, mmwoff(0, mmw_fee_data_h), (*--b) >> 8); | |
492 | mmc_out(ioaddr, mmwoff(0, mmw_fee_data_l), *b & 0xFF); | |
493 | ||
494 | /* Write the write command. */ | |
495 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), | |
496 | MMW_FEE_CTRL_WRITE); | |
497 | ||
498 | /* WaveLAN documentation says to wait at least 10 ms for EEBUSY = 0 */ | |
499 | mdelay(10); | |
500 | fee_wait(ioaddr, 10, 100); | |
501 | } | |
502 | ||
503 | /* Write disable. */ | |
504 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_DS); | |
505 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WDS); | |
506 | ||
507 | fee_wait(ioaddr, 10, 100); | |
508 | ||
509 | #ifdef EEPROM_IS_PROTECTED /* disabled */ | |
510 | /* Reprotect EEPROM. */ | |
511 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x00); | |
512 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE); | |
513 | ||
514 | fee_wait(ioaddr, 10, 100); | |
515 | #endif /* EEPROM_IS_PROTECTED */ | |
516 | } | |
517 | #endif /* WIRELESS_EXT */ | |
518 | ||
519 | /************************ I82586 SUBROUTINES *************************/ | |
520 | /* | |
521 | * Useful subroutines to manage the Ethernet controller | |
522 | */ | |
523 | ||
524 | /*------------------------------------------------------------------*/ | |
525 | /* | |
526 | * Read bytes from the on-board RAM. | |
527 | * Why does inlining this function make it fail? | |
528 | */ | |
529 | static /*inline */ void obram_read(unsigned long ioaddr, | |
530 | u16 o, u8 * b, int n) | |
531 | { | |
532 | outw(o, PIOR1(ioaddr)); | |
533 | insw(PIOP1(ioaddr), (unsigned short *) b, (n + 1) >> 1); | |
534 | } | |
535 | ||
536 | /*------------------------------------------------------------------*/ | |
537 | /* | |
538 | * Write bytes to the on-board RAM. | |
539 | */ | |
540 | static inline void obram_write(unsigned long ioaddr, u16 o, u8 * b, int n) | |
541 | { | |
542 | outw(o, PIOR1(ioaddr)); | |
543 | outsw(PIOP1(ioaddr), (unsigned short *) b, (n + 1) >> 1); | |
544 | } | |
545 | ||
546 | /*------------------------------------------------------------------*/ | |
547 | /* | |
548 | * Acknowledge the reading of the status issued by the i82586. | |
549 | */ | |
550 | static void wv_ack(struct net_device * dev) | |
551 | { | |
552 | net_local *lp = (net_local *) dev->priv; | |
553 | unsigned long ioaddr = dev->base_addr; | |
554 | u16 scb_cs; | |
555 | int i; | |
556 | ||
557 | obram_read(ioaddr, scboff(OFFSET_SCB, scb_status), | |
558 | (unsigned char *) &scb_cs, sizeof(scb_cs)); | |
559 | scb_cs &= SCB_ST_INT; | |
560 | ||
561 | if (scb_cs == 0) | |
562 | return; | |
563 | ||
564 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_command), | |
565 | (unsigned char *) &scb_cs, sizeof(scb_cs)); | |
566 | ||
567 | set_chan_attn(ioaddr, lp->hacr); | |
568 | ||
569 | for (i = 1000; i > 0; i--) { | |
570 | obram_read(ioaddr, scboff(OFFSET_SCB, scb_command), | |
571 | (unsigned char *) &scb_cs, sizeof(scb_cs)); | |
572 | if (scb_cs == 0) | |
573 | break; | |
574 | ||
575 | udelay(10); | |
576 | } | |
577 | udelay(100); | |
578 | ||
579 | #ifdef DEBUG_CONFIG_ERROR | |
580 | if (i <= 0) | |
581 | printk(KERN_INFO | |
582 | "%s: wv_ack(): board not accepting command.\n", | |
583 | dev->name); | |
584 | #endif | |
585 | } | |
586 | ||
587 | /*------------------------------------------------------------------*/ | |
588 | /* | |
589 | * Set channel attention bit and busy wait until command has | |
590 | * completed, then acknowledge completion of the command. | |
591 | */ | |
592 | static inline int wv_synchronous_cmd(struct net_device * dev, const char *str) | |
593 | { | |
594 | net_local *lp = (net_local *) dev->priv; | |
595 | unsigned long ioaddr = dev->base_addr; | |
596 | u16 scb_cmd; | |
597 | ach_t cb; | |
598 | int i; | |
599 | ||
600 | scb_cmd = SCB_CMD_CUC & SCB_CMD_CUC_GO; | |
601 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_command), | |
602 | (unsigned char *) &scb_cmd, sizeof(scb_cmd)); | |
603 | ||
604 | set_chan_attn(ioaddr, lp->hacr); | |
605 | ||
606 | for (i = 1000; i > 0; i--) { | |
607 | obram_read(ioaddr, OFFSET_CU, (unsigned char *) &cb, | |
608 | sizeof(cb)); | |
609 | if (cb.ac_status & AC_SFLD_C) | |
610 | break; | |
611 | ||
612 | udelay(10); | |
613 | } | |
614 | udelay(100); | |
615 | ||
616 | if (i <= 0 || !(cb.ac_status & AC_SFLD_OK)) { | |
617 | #ifdef DEBUG_CONFIG_ERROR | |
618 | printk(KERN_INFO "%s: %s failed; status = 0x%x\n", | |
619 | dev->name, str, cb.ac_status); | |
620 | #endif | |
621 | #ifdef DEBUG_I82586_SHOW | |
622 | wv_scb_show(ioaddr); | |
623 | #endif | |
624 | return -1; | |
625 | } | |
626 | ||
627 | /* Ack the status */ | |
628 | wv_ack(dev); | |
629 | ||
630 | return 0; | |
631 | } | |
632 | ||
633 | /*------------------------------------------------------------------*/ | |
634 | /* | |
635 | * Configuration commands completion interrupt. | |
636 | * Check if done, and if OK. | |
637 | */ | |
638 | static inline int | |
639 | wv_config_complete(struct net_device * dev, unsigned long ioaddr, net_local * lp) | |
640 | { | |
641 | unsigned short mcs_addr; | |
642 | unsigned short status; | |
643 | int ret; | |
644 | ||
645 | #ifdef DEBUG_INTERRUPT_TRACE | |
646 | printk(KERN_DEBUG "%s: ->wv_config_complete()\n", dev->name); | |
647 | #endif | |
648 | ||
649 | mcs_addr = lp->tx_first_in_use + sizeof(ac_tx_t) + sizeof(ac_nop_t) | |
650 | + sizeof(tbd_t) + sizeof(ac_cfg_t) + sizeof(ac_ias_t); | |
651 | ||
652 | /* Read the status of the last command (set mc list). */ | |
653 | obram_read(ioaddr, acoff(mcs_addr, ac_status), | |
654 | (unsigned char *) &status, sizeof(status)); | |
655 | ||
656 | /* If not completed -> exit */ | |
657 | if ((status & AC_SFLD_C) == 0) | |
658 | ret = 0; /* Not ready to be scrapped */ | |
659 | else { | |
660 | #ifdef DEBUG_CONFIG_ERROR | |
661 | unsigned short cfg_addr; | |
662 | unsigned short ias_addr; | |
663 | ||
664 | /* Check mc_config command */ | |
665 | if ((status & AC_SFLD_OK) != AC_SFLD_OK) | |
666 | printk(KERN_INFO | |
667 | "%s: wv_config_complete(): set_multicast_address failed; status = 0x%x\n", | |
668 | dev->name, status); | |
669 | ||
670 | /* check ia-config command */ | |
671 | ias_addr = mcs_addr - sizeof(ac_ias_t); | |
672 | obram_read(ioaddr, acoff(ias_addr, ac_status), | |
673 | (unsigned char *) &status, sizeof(status)); | |
674 | if ((status & AC_SFLD_OK) != AC_SFLD_OK) | |
675 | printk(KERN_INFO | |
676 | "%s: wv_config_complete(): set_MAC_address failed; status = 0x%x\n", | |
677 | dev->name, status); | |
678 | ||
679 | /* Check config command. */ | |
680 | cfg_addr = ias_addr - sizeof(ac_cfg_t); | |
681 | obram_read(ioaddr, acoff(cfg_addr, ac_status), | |
682 | (unsigned char *) &status, sizeof(status)); | |
683 | if ((status & AC_SFLD_OK) != AC_SFLD_OK) | |
684 | printk(KERN_INFO | |
685 | "%s: wv_config_complete(): configure failed; status = 0x%x\n", | |
686 | dev->name, status); | |
687 | #endif /* DEBUG_CONFIG_ERROR */ | |
688 | ||
689 | ret = 1; /* Ready to be scrapped */ | |
690 | } | |
691 | ||
692 | #ifdef DEBUG_INTERRUPT_TRACE | |
693 | printk(KERN_DEBUG "%s: <-wv_config_complete() - %d\n", dev->name, | |
694 | ret); | |
695 | #endif | |
696 | return ret; | |
697 | } | |
698 | ||
699 | /*------------------------------------------------------------------*/ | |
700 | /* | |
701 | * Command completion interrupt. | |
702 | * Reclaim as many freed tx buffers as we can. | |
703 | * (called in wavelan_interrupt()). | |
704 | * Note : the spinlock is already grabbed for us. | |
705 | */ | |
706 | static int wv_complete(struct net_device * dev, unsigned long ioaddr, net_local * lp) | |
707 | { | |
708 | int nreaped = 0; | |
709 | ||
710 | #ifdef DEBUG_INTERRUPT_TRACE | |
711 | printk(KERN_DEBUG "%s: ->wv_complete()\n", dev->name); | |
712 | #endif | |
713 | ||
714 | /* Loop on all the transmit buffers */ | |
715 | while (lp->tx_first_in_use != I82586NULL) { | |
716 | unsigned short tx_status; | |
717 | ||
718 | /* Read the first transmit buffer */ | |
719 | obram_read(ioaddr, acoff(lp->tx_first_in_use, ac_status), | |
720 | (unsigned char *) &tx_status, | |
721 | sizeof(tx_status)); | |
722 | ||
723 | /* If not completed -> exit */ | |
724 | if ((tx_status & AC_SFLD_C) == 0) | |
725 | break; | |
726 | ||
727 | /* Hack for reconfiguration */ | |
728 | if (tx_status == 0xFFFF) | |
729 | if (!wv_config_complete(dev, ioaddr, lp)) | |
730 | break; /* Not completed */ | |
731 | ||
732 | /* We now remove this buffer */ | |
733 | nreaped++; | |
734 | --lp->tx_n_in_use; | |
735 | ||
736 | /* | |
737 | if (lp->tx_n_in_use > 0) | |
738 | printk("%c", "0123456789abcdefghijk"[lp->tx_n_in_use]); | |
739 | */ | |
740 | ||
741 | /* Was it the last one? */ | |
742 | if (lp->tx_n_in_use <= 0) | |
743 | lp->tx_first_in_use = I82586NULL; | |
744 | else { | |
745 | /* Next one in the chain */ | |
746 | lp->tx_first_in_use += TXBLOCKZ; | |
747 | if (lp->tx_first_in_use >= | |
748 | OFFSET_CU + | |
749 | NTXBLOCKS * TXBLOCKZ) lp->tx_first_in_use -= | |
750 | NTXBLOCKS * TXBLOCKZ; | |
751 | } | |
752 | ||
753 | /* Hack for reconfiguration */ | |
754 | if (tx_status == 0xFFFF) | |
755 | continue; | |
756 | ||
757 | /* Now, check status of the finished command */ | |
758 | if (tx_status & AC_SFLD_OK) { | |
759 | int ncollisions; | |
760 | ||
761 | lp->stats.tx_packets++; | |
762 | ncollisions = tx_status & AC_SFLD_MAXCOL; | |
763 | lp->stats.collisions += ncollisions; | |
764 | #ifdef DEBUG_TX_INFO | |
765 | if (ncollisions > 0) | |
766 | printk(KERN_DEBUG | |
767 | "%s: wv_complete(): tx completed after %d collisions.\n", | |
768 | dev->name, ncollisions); | |
769 | #endif | |
770 | } else { | |
771 | lp->stats.tx_errors++; | |
772 | if (tx_status & AC_SFLD_S10) { | |
773 | lp->stats.tx_carrier_errors++; | |
774 | #ifdef DEBUG_TX_FAIL | |
775 | printk(KERN_DEBUG | |
776 | "%s: wv_complete(): tx error: no CS.\n", | |
777 | dev->name); | |
778 | #endif | |
779 | } | |
780 | if (tx_status & AC_SFLD_S9) { | |
781 | lp->stats.tx_carrier_errors++; | |
782 | #ifdef DEBUG_TX_FAIL | |
783 | printk(KERN_DEBUG | |
784 | "%s: wv_complete(): tx error: lost CTS.\n", | |
785 | dev->name); | |
786 | #endif | |
787 | } | |
788 | if (tx_status & AC_SFLD_S8) { | |
789 | lp->stats.tx_fifo_errors++; | |
790 | #ifdef DEBUG_TX_FAIL | |
791 | printk(KERN_DEBUG | |
792 | "%s: wv_complete(): tx error: slow DMA.\n", | |
793 | dev->name); | |
794 | #endif | |
795 | } | |
796 | if (tx_status & AC_SFLD_S6) { | |
797 | lp->stats.tx_heartbeat_errors++; | |
798 | #ifdef DEBUG_TX_FAIL | |
799 | printk(KERN_DEBUG | |
800 | "%s: wv_complete(): tx error: heart beat.\n", | |
801 | dev->name); | |
802 | #endif | |
803 | } | |
804 | if (tx_status & AC_SFLD_S5) { | |
805 | lp->stats.tx_aborted_errors++; | |
806 | #ifdef DEBUG_TX_FAIL | |
807 | printk(KERN_DEBUG | |
808 | "%s: wv_complete(): tx error: too many collisions.\n", | |
809 | dev->name); | |
810 | #endif | |
811 | } | |
812 | } | |
813 | ||
814 | #ifdef DEBUG_TX_INFO | |
815 | printk(KERN_DEBUG | |
816 | "%s: wv_complete(): tx completed, tx_status 0x%04x\n", | |
817 | dev->name, tx_status); | |
818 | #endif | |
819 | } | |
820 | ||
821 | #ifdef DEBUG_INTERRUPT_INFO | |
822 | if (nreaped > 1) | |
823 | printk(KERN_DEBUG "%s: wv_complete(): reaped %d\n", | |
824 | dev->name, nreaped); | |
825 | #endif | |
826 | ||
827 | /* | |
828 | * Inform upper layers. | |
829 | */ | |
830 | if (lp->tx_n_in_use < NTXBLOCKS - 1) { | |
831 | netif_wake_queue(dev); | |
832 | } | |
833 | #ifdef DEBUG_INTERRUPT_TRACE | |
834 | printk(KERN_DEBUG "%s: <-wv_complete()\n", dev->name); | |
835 | #endif | |
836 | return nreaped; | |
837 | } | |
838 | ||
839 | /*------------------------------------------------------------------*/ | |
840 | /* | |
841 | * Reconfigure the i82586, or at least ask for it. | |
842 | * Because wv_82586_config uses a transmission buffer, we must do it | |
843 | * when we are sure that there is one left, so we do it now | |
844 | * or in wavelan_packet_xmit() (I can't find any better place, | |
845 | * wavelan_interrupt is not an option), so you may experience | |
846 | * delays sometimes. | |
847 | */ | |
848 | static inline void wv_82586_reconfig(struct net_device * dev) | |
849 | { | |
850 | net_local *lp = (net_local *) dev->priv; | |
851 | unsigned long flags; | |
852 | ||
853 | /* Arm the flag, will be cleard in wv_82586_config() */ | |
854 | lp->reconfig_82586 = 1; | |
855 | ||
856 | /* Check if we can do it now ! */ | |
857 | if((netif_running(dev)) && !(netif_queue_stopped(dev))) { | |
858 | spin_lock_irqsave(&lp->spinlock, flags); | |
859 | /* May fail */ | |
860 | wv_82586_config(dev); | |
861 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
862 | } | |
863 | else { | |
864 | #ifdef DEBUG_CONFIG_INFO | |
865 | printk(KERN_DEBUG | |
866 | "%s: wv_82586_reconfig(): delayed (state = %lX)\n", | |
867 | dev->name, dev->state); | |
868 | #endif | |
869 | } | |
870 | } | |
871 | ||
872 | /********************* DEBUG & INFO SUBROUTINES *********************/ | |
873 | /* | |
874 | * This routine is used in the code to show information for debugging. | |
875 | * Most of the time, it dumps the contents of hardware structures. | |
876 | */ | |
877 | ||
878 | #ifdef DEBUG_PSA_SHOW | |
879 | /*------------------------------------------------------------------*/ | |
880 | /* | |
881 | * Print the formatted contents of the Parameter Storage Area. | |
882 | */ | |
883 | static void wv_psa_show(psa_t * p) | |
884 | { | |
885 | printk(KERN_DEBUG "##### WaveLAN PSA contents: #####\n"); | |
886 | printk(KERN_DEBUG "psa_io_base_addr_1: 0x%02X %02X %02X %02X\n", | |
887 | p->psa_io_base_addr_1, | |
888 | p->psa_io_base_addr_2, | |
889 | p->psa_io_base_addr_3, p->psa_io_base_addr_4); | |
890 | printk(KERN_DEBUG "psa_rem_boot_addr_1: 0x%02X %02X %02X\n", | |
891 | p->psa_rem_boot_addr_1, | |
892 | p->psa_rem_boot_addr_2, p->psa_rem_boot_addr_3); | |
893 | printk(KERN_DEBUG "psa_holi_params: 0x%02x, ", p->psa_holi_params); | |
894 | printk("psa_int_req_no: %d\n", p->psa_int_req_no); | |
895 | #ifdef DEBUG_SHOW_UNUSED | |
896 | printk(KERN_DEBUG | |
897 | "psa_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X\n", | |
898 | p->psa_unused0[0], p->psa_unused0[1], p->psa_unused0[2], | |
899 | p->psa_unused0[3], p->psa_unused0[4], p->psa_unused0[5], | |
900 | p->psa_unused0[6]); | |
901 | #endif /* DEBUG_SHOW_UNUSED */ | |
902 | printk(KERN_DEBUG | |
903 | "psa_univ_mac_addr[]: %02x:%02x:%02x:%02x:%02x:%02x\n", | |
904 | p->psa_univ_mac_addr[0], p->psa_univ_mac_addr[1], | |
905 | p->psa_univ_mac_addr[2], p->psa_univ_mac_addr[3], | |
906 | p->psa_univ_mac_addr[4], p->psa_univ_mac_addr[5]); | |
907 | printk(KERN_DEBUG | |
908 | "psa_local_mac_addr[]: %02x:%02x:%02x:%02x:%02x:%02x\n", | |
909 | p->psa_local_mac_addr[0], p->psa_local_mac_addr[1], | |
910 | p->psa_local_mac_addr[2], p->psa_local_mac_addr[3], | |
911 | p->psa_local_mac_addr[4], p->psa_local_mac_addr[5]); | |
912 | printk(KERN_DEBUG "psa_univ_local_sel: %d, ", | |
913 | p->psa_univ_local_sel); | |
914 | printk("psa_comp_number: %d, ", p->psa_comp_number); | |
915 | printk("psa_thr_pre_set: 0x%02x\n", p->psa_thr_pre_set); | |
916 | printk(KERN_DEBUG "psa_feature_select/decay_prm: 0x%02x, ", | |
917 | p->psa_feature_select); | |
918 | printk("psa_subband/decay_update_prm: %d\n", p->psa_subband); | |
919 | printk(KERN_DEBUG "psa_quality_thr: 0x%02x, ", p->psa_quality_thr); | |
920 | printk("psa_mod_delay: 0x%02x\n", p->psa_mod_delay); | |
921 | printk(KERN_DEBUG "psa_nwid: 0x%02x%02x, ", p->psa_nwid[0], | |
922 | p->psa_nwid[1]); | |
923 | printk("psa_nwid_select: %d\n", p->psa_nwid_select); | |
924 | printk(KERN_DEBUG "psa_encryption_select: %d, ", | |
925 | p->psa_encryption_select); | |
926 | printk | |
927 | ("psa_encryption_key[]: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", | |
928 | p->psa_encryption_key[0], p->psa_encryption_key[1], | |
929 | p->psa_encryption_key[2], p->psa_encryption_key[3], | |
930 | p->psa_encryption_key[4], p->psa_encryption_key[5], | |
931 | p->psa_encryption_key[6], p->psa_encryption_key[7]); | |
932 | printk(KERN_DEBUG "psa_databus_width: %d\n", p->psa_databus_width); | |
933 | printk(KERN_DEBUG "psa_call_code/auto_squelch: 0x%02x, ", | |
934 | p->psa_call_code[0]); | |
935 | printk | |
936 | ("psa_call_code[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n", | |
937 | p->psa_call_code[0], p->psa_call_code[1], p->psa_call_code[2], | |
938 | p->psa_call_code[3], p->psa_call_code[4], p->psa_call_code[5], | |
939 | p->psa_call_code[6], p->psa_call_code[7]); | |
940 | #ifdef DEBUG_SHOW_UNUSED | |
941 | printk(KERN_DEBUG "psa_reserved[]: %02X:%02X:%02X:%02X\n", | |
942 | p->psa_reserved[0], | |
943 | p->psa_reserved[1], p->psa_reserved[2], p->psa_reserved[3]); | |
944 | #endif /* DEBUG_SHOW_UNUSED */ | |
945 | printk(KERN_DEBUG "psa_conf_status: %d, ", p->psa_conf_status); | |
946 | printk("psa_crc: 0x%02x%02x, ", p->psa_crc[0], p->psa_crc[1]); | |
947 | printk("psa_crc_status: 0x%02x\n", p->psa_crc_status); | |
948 | } /* wv_psa_show */ | |
949 | #endif /* DEBUG_PSA_SHOW */ | |
950 | ||
951 | #ifdef DEBUG_MMC_SHOW | |
952 | /*------------------------------------------------------------------*/ | |
953 | /* | |
954 | * Print the formatted status of the Modem Management Controller. | |
955 | * This function needs to be completed. | |
956 | */ | |
957 | static void wv_mmc_show(struct net_device * dev) | |
958 | { | |
959 | unsigned long ioaddr = dev->base_addr; | |
960 | net_local *lp = (net_local *) dev->priv; | |
961 | mmr_t m; | |
962 | ||
963 | /* Basic check */ | |
964 | if (hasr_read(ioaddr) & HASR_NO_CLK) { | |
965 | printk(KERN_WARNING | |
966 | "%s: wv_mmc_show: modem not connected\n", | |
967 | dev->name); | |
968 | return; | |
969 | } | |
970 | ||
971 | /* Read the mmc */ | |
972 | mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1); | |
973 | mmc_read(ioaddr, 0, (u8 *) & m, sizeof(m)); | |
974 | mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0); | |
975 | ||
976 | #ifdef WIRELESS_EXT /* if wireless extension exists in the kernel */ | |
977 | /* Don't forget to update statistics */ | |
978 | lp->wstats.discard.nwid += | |
979 | (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l; | |
980 | #endif /* WIRELESS_EXT */ | |
981 | ||
982 | printk(KERN_DEBUG "##### WaveLAN modem status registers: #####\n"); | |
983 | #ifdef DEBUG_SHOW_UNUSED | |
984 | printk(KERN_DEBUG | |
985 | "mmc_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n", | |
986 | m.mmr_unused0[0], m.mmr_unused0[1], m.mmr_unused0[2], | |
987 | m.mmr_unused0[3], m.mmr_unused0[4], m.mmr_unused0[5], | |
988 | m.mmr_unused0[6], m.mmr_unused0[7]); | |
989 | #endif /* DEBUG_SHOW_UNUSED */ | |
990 | printk(KERN_DEBUG "Encryption algorithm: %02X - Status: %02X\n", | |
991 | m.mmr_des_avail, m.mmr_des_status); | |
992 | #ifdef DEBUG_SHOW_UNUSED | |
993 | printk(KERN_DEBUG "mmc_unused1[]: %02X:%02X:%02X:%02X:%02X\n", | |
994 | m.mmr_unused1[0], | |
995 | m.mmr_unused1[1], | |
996 | m.mmr_unused1[2], m.mmr_unused1[3], m.mmr_unused1[4]); | |
997 | #endif /* DEBUG_SHOW_UNUSED */ | |
998 | printk(KERN_DEBUG "dce_status: 0x%x [%s%s%s%s]\n", | |
999 | m.mmr_dce_status, | |
1000 | (m. | |
1001 | mmr_dce_status & MMR_DCE_STATUS_RX_BUSY) ? | |
1002 | "energy detected," : "", | |
1003 | (m. | |
1004 | mmr_dce_status & MMR_DCE_STATUS_LOOPT_IND) ? | |
1005 | "loop test indicated," : "", | |
1006 | (m. | |
1007 | mmr_dce_status & MMR_DCE_STATUS_TX_BUSY) ? | |
1008 | "transmitter on," : "", | |
1009 | (m. | |
1010 | mmr_dce_status & MMR_DCE_STATUS_JBR_EXPIRED) ? | |
1011 | "jabber timer expired," : ""); | |
1012 | printk(KERN_DEBUG "Dsp ID: %02X\n", m.mmr_dsp_id); | |
1013 | #ifdef DEBUG_SHOW_UNUSED | |
1014 | printk(KERN_DEBUG "mmc_unused2[]: %02X:%02X\n", | |
1015 | m.mmr_unused2[0], m.mmr_unused2[1]); | |
1016 | #endif /* DEBUG_SHOW_UNUSED */ | |
1017 | printk(KERN_DEBUG "# correct_nwid: %d, # wrong_nwid: %d\n", | |
1018 | (m.mmr_correct_nwid_h << 8) | m.mmr_correct_nwid_l, | |
1019 | (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l); | |
1020 | printk(KERN_DEBUG "thr_pre_set: 0x%x [current signal %s]\n", | |
1021 | m.mmr_thr_pre_set & MMR_THR_PRE_SET, | |
1022 | (m. | |
1023 | mmr_thr_pre_set & MMR_THR_PRE_SET_CUR) ? "above" : | |
1024 | "below"); | |
1025 | printk(KERN_DEBUG "signal_lvl: %d [%s], ", | |
1026 | m.mmr_signal_lvl & MMR_SIGNAL_LVL, | |
1027 | (m. | |
1028 | mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) ? "new msg" : | |
1029 | "no new msg"); | |
1030 | printk("silence_lvl: %d [%s], ", | |
1031 | m.mmr_silence_lvl & MMR_SILENCE_LVL, | |
1032 | (m. | |
1033 | mmr_silence_lvl & MMR_SILENCE_LVL_VALID) ? "update done" : | |
1034 | "no new update"); | |
1035 | printk("sgnl_qual: 0x%x [%s]\n", m.mmr_sgnl_qual & MMR_SGNL_QUAL, | |
1036 | (m. | |
1037 | mmr_sgnl_qual & MMR_SGNL_QUAL_ANT) ? "Antenna 1" : | |
1038 | "Antenna 0"); | |
1039 | #ifdef DEBUG_SHOW_UNUSED | |
1040 | printk(KERN_DEBUG "netw_id_l: %x\n", m.mmr_netw_id_l); | |
1041 | #endif /* DEBUG_SHOW_UNUSED */ | |
1042 | } /* wv_mmc_show */ | |
1043 | #endif /* DEBUG_MMC_SHOW */ | |
1044 | ||
1045 | #ifdef DEBUG_I82586_SHOW | |
1046 | /*------------------------------------------------------------------*/ | |
1047 | /* | |
1048 | * Print the last block of the i82586 memory. | |
1049 | */ | |
1050 | static void wv_scb_show(unsigned long ioaddr) | |
1051 | { | |
1052 | scb_t scb; | |
1053 | ||
1054 | obram_read(ioaddr, OFFSET_SCB, (unsigned char *) &scb, | |
1055 | sizeof(scb)); | |
1056 | ||
1057 | printk(KERN_DEBUG "##### WaveLAN system control block: #####\n"); | |
1058 | ||
1059 | printk(KERN_DEBUG "status: "); | |
1060 | printk("stat 0x%x[%s%s%s%s] ", | |
1061 | (scb. | |
1062 | scb_status & (SCB_ST_CX | SCB_ST_FR | SCB_ST_CNA | | |
1063 | SCB_ST_RNR)) >> 12, | |
1064 | (scb. | |
1065 | scb_status & SCB_ST_CX) ? "command completion interrupt," : | |
1066 | "", (scb.scb_status & SCB_ST_FR) ? "frame received," : "", | |
1067 | (scb. | |
1068 | scb_status & SCB_ST_CNA) ? "command unit not active," : "", | |
1069 | (scb. | |
1070 | scb_status & SCB_ST_RNR) ? "receiving unit not ready," : | |
1071 | ""); | |
1072 | printk("cus 0x%x[%s%s%s] ", (scb.scb_status & SCB_ST_CUS) >> 8, | |
1073 | ((scb.scb_status & SCB_ST_CUS) == | |
1074 | SCB_ST_CUS_IDLE) ? "idle" : "", | |
1075 | ((scb.scb_status & SCB_ST_CUS) == | |
1076 | SCB_ST_CUS_SUSP) ? "suspended" : "", | |
1077 | ((scb.scb_status & SCB_ST_CUS) == | |
1078 | SCB_ST_CUS_ACTV) ? "active" : ""); | |
1079 | printk("rus 0x%x[%s%s%s%s]\n", (scb.scb_status & SCB_ST_RUS) >> 4, | |
1080 | ((scb.scb_status & SCB_ST_RUS) == | |
1081 | SCB_ST_RUS_IDLE) ? "idle" : "", | |
1082 | ((scb.scb_status & SCB_ST_RUS) == | |
1083 | SCB_ST_RUS_SUSP) ? "suspended" : "", | |
1084 | ((scb.scb_status & SCB_ST_RUS) == | |
1085 | SCB_ST_RUS_NRES) ? "no resources" : "", | |
1086 | ((scb.scb_status & SCB_ST_RUS) == | |
1087 | SCB_ST_RUS_RDY) ? "ready" : ""); | |
1088 | ||
1089 | printk(KERN_DEBUG "command: "); | |
1090 | printk("ack 0x%x[%s%s%s%s] ", | |
1091 | (scb. | |
1092 | scb_command & (SCB_CMD_ACK_CX | SCB_CMD_ACK_FR | | |
1093 | SCB_CMD_ACK_CNA | SCB_CMD_ACK_RNR)) >> 12, | |
1094 | (scb. | |
1095 | scb_command & SCB_CMD_ACK_CX) ? "ack cmd completion," : "", | |
1096 | (scb. | |
1097 | scb_command & SCB_CMD_ACK_FR) ? "ack frame received," : "", | |
1098 | (scb. | |
1099 | scb_command & SCB_CMD_ACK_CNA) ? "ack CU not active," : "", | |
1100 | (scb. | |
1101 | scb_command & SCB_CMD_ACK_RNR) ? "ack RU not ready," : ""); | |
1102 | printk("cuc 0x%x[%s%s%s%s%s] ", | |
1103 | (scb.scb_command & SCB_CMD_CUC) >> 8, | |
1104 | ((scb.scb_command & SCB_CMD_CUC) == | |
1105 | SCB_CMD_CUC_NOP) ? "nop" : "", | |
1106 | ((scb.scb_command & SCB_CMD_CUC) == | |
1107 | SCB_CMD_CUC_GO) ? "start cbl_offset" : "", | |
1108 | ((scb.scb_command & SCB_CMD_CUC) == | |
1109 | SCB_CMD_CUC_RES) ? "resume execution" : "", | |
1110 | ((scb.scb_command & SCB_CMD_CUC) == | |
1111 | SCB_CMD_CUC_SUS) ? "suspend execution" : "", | |
1112 | ((scb.scb_command & SCB_CMD_CUC) == | |
1113 | SCB_CMD_CUC_ABT) ? "abort execution" : ""); | |
1114 | printk("ruc 0x%x[%s%s%s%s%s]\n", | |
1115 | (scb.scb_command & SCB_CMD_RUC) >> 4, | |
1116 | ((scb.scb_command & SCB_CMD_RUC) == | |
1117 | SCB_CMD_RUC_NOP) ? "nop" : "", | |
1118 | ((scb.scb_command & SCB_CMD_RUC) == | |
1119 | SCB_CMD_RUC_GO) ? "start rfa_offset" : "", | |
1120 | ((scb.scb_command & SCB_CMD_RUC) == | |
1121 | SCB_CMD_RUC_RES) ? "resume reception" : "", | |
1122 | ((scb.scb_command & SCB_CMD_RUC) == | |
1123 | SCB_CMD_RUC_SUS) ? "suspend reception" : "", | |
1124 | ((scb.scb_command & SCB_CMD_RUC) == | |
1125 | SCB_CMD_RUC_ABT) ? "abort reception" : ""); | |
1126 | ||
1127 | printk(KERN_DEBUG "cbl_offset 0x%x ", scb.scb_cbl_offset); | |
1128 | printk("rfa_offset 0x%x\n", scb.scb_rfa_offset); | |
1129 | ||
1130 | printk(KERN_DEBUG "crcerrs %d ", scb.scb_crcerrs); | |
1131 | printk("alnerrs %d ", scb.scb_alnerrs); | |
1132 | printk("rscerrs %d ", scb.scb_rscerrs); | |
1133 | printk("ovrnerrs %d\n", scb.scb_ovrnerrs); | |
1134 | } | |
1135 | ||
1136 | /*------------------------------------------------------------------*/ | |
1137 | /* | |
1138 | * Print the formatted status of the i82586's receive unit. | |
1139 | */ | |
1140 | static void wv_ru_show(struct net_device * dev) | |
1141 | { | |
1142 | /* net_local *lp = (net_local *) dev->priv; */ | |
1143 | ||
1144 | printk(KERN_DEBUG | |
1145 | "##### WaveLAN i82586 receiver unit status: #####\n"); | |
1146 | printk(KERN_DEBUG "ru:"); | |
1147 | /* | |
1148 | * Not implemented yet | |
1149 | */ | |
1150 | printk("\n"); | |
1151 | } /* wv_ru_show */ | |
1152 | ||
1153 | /*------------------------------------------------------------------*/ | |
1154 | /* | |
1155 | * Display info about one control block of the i82586 memory. | |
1156 | */ | |
1157 | static void wv_cu_show_one(struct net_device * dev, net_local * lp, int i, u16 p) | |
1158 | { | |
1159 | unsigned long ioaddr; | |
1160 | ac_tx_t actx; | |
1161 | ||
1162 | ioaddr = dev->base_addr; | |
1163 | ||
1164 | printk("%d: 0x%x:", i, p); | |
1165 | ||
1166 | obram_read(ioaddr, p, (unsigned char *) &actx, sizeof(actx)); | |
1167 | printk(" status=0x%x,", actx.tx_h.ac_status); | |
1168 | printk(" command=0x%x,", actx.tx_h.ac_command); | |
1169 | ||
1170 | /* | |
1171 | { | |
1172 | tbd_t tbd; | |
1173 | ||
1174 | obram_read(ioaddr, actx.tx_tbd_offset, (unsigned char *)&tbd, sizeof(tbd)); | |
1175 | printk(" tbd_status=0x%x,", tbd.tbd_status); | |
1176 | } | |
1177 | */ | |
1178 | ||
1179 | printk("|"); | |
1180 | } | |
1181 | ||
1182 | /*------------------------------------------------------------------*/ | |
1183 | /* | |
1184 | * Print status of the command unit of the i82586. | |
1185 | */ | |
1186 | static void wv_cu_show(struct net_device * dev) | |
1187 | { | |
1188 | net_local *lp = (net_local *) dev->priv; | |
1189 | unsigned int i; | |
1190 | u16 p; | |
1191 | ||
1192 | printk(KERN_DEBUG | |
1193 | "##### WaveLAN i82586 command unit status: #####\n"); | |
1194 | ||
1195 | printk(KERN_DEBUG); | |
1196 | for (i = 0, p = lp->tx_first_in_use; i < NTXBLOCKS; i++) { | |
1197 | wv_cu_show_one(dev, lp, i, p); | |
1198 | ||
1199 | p += TXBLOCKZ; | |
1200 | if (p >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ) | |
1201 | p -= NTXBLOCKS * TXBLOCKZ; | |
1202 | } | |
1203 | printk("\n"); | |
1204 | } | |
1205 | #endif /* DEBUG_I82586_SHOW */ | |
1206 | ||
1207 | #ifdef DEBUG_DEVICE_SHOW | |
1208 | /*------------------------------------------------------------------*/ | |
1209 | /* | |
1210 | * Print the formatted status of the WaveLAN PCMCIA device driver. | |
1211 | */ | |
1212 | static void wv_dev_show(struct net_device * dev) | |
1213 | { | |
1214 | printk(KERN_DEBUG "dev:"); | |
1215 | printk(" state=%lX,", dev->state); | |
1216 | printk(" trans_start=%ld,", dev->trans_start); | |
1217 | printk(" flags=0x%x,", dev->flags); | |
1218 | printk("\n"); | |
1219 | } /* wv_dev_show */ | |
1220 | ||
1221 | /*------------------------------------------------------------------*/ | |
1222 | /* | |
1223 | * Print the formatted status of the WaveLAN PCMCIA device driver's | |
1224 | * private information. | |
1225 | */ | |
1226 | static void wv_local_show(struct net_device * dev) | |
1227 | { | |
1228 | net_local *lp; | |
1229 | ||
1230 | lp = (net_local *) dev->priv; | |
1231 | ||
1232 | printk(KERN_DEBUG "local:"); | |
1233 | printk(" tx_n_in_use=%d,", lp->tx_n_in_use); | |
1234 | printk(" hacr=0x%x,", lp->hacr); | |
1235 | printk(" rx_head=0x%x,", lp->rx_head); | |
1236 | printk(" rx_last=0x%x,", lp->rx_last); | |
1237 | printk(" tx_first_free=0x%x,", lp->tx_first_free); | |
1238 | printk(" tx_first_in_use=0x%x,", lp->tx_first_in_use); | |
1239 | printk("\n"); | |
1240 | } /* wv_local_show */ | |
1241 | #endif /* DEBUG_DEVICE_SHOW */ | |
1242 | ||
1243 | #if defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO) | |
1244 | /*------------------------------------------------------------------*/ | |
1245 | /* | |
1246 | * Dump packet header (and content if necessary) on the screen | |
1247 | */ | |
1248 | static inline void wv_packet_info(u8 * p, /* Packet to dump */ | |
1249 | int length, /* Length of the packet */ | |
1250 | char *msg1, /* Name of the device */ | |
1251 | char *msg2) | |
1252 | { /* Name of the function */ | |
1253 | int i; | |
1254 | int maxi; | |
1255 | ||
1256 | printk(KERN_DEBUG | |
1257 | "%s: %s(): dest %02X:%02X:%02X:%02X:%02X:%02X, length %d\n", | |
1258 | msg1, msg2, p[0], p[1], p[2], p[3], p[4], p[5], length); | |
1259 | printk(KERN_DEBUG | |
1260 | "%s: %s(): src %02X:%02X:%02X:%02X:%02X:%02X, type 0x%02X%02X\n", | |
1261 | msg1, msg2, p[6], p[7], p[8], p[9], p[10], p[11], p[12], | |
1262 | p[13]); | |
1263 | ||
1264 | #ifdef DEBUG_PACKET_DUMP | |
1265 | ||
1266 | printk(KERN_DEBUG "data=\""); | |
1267 | ||
1268 | if ((maxi = length) > DEBUG_PACKET_DUMP) | |
1269 | maxi = DEBUG_PACKET_DUMP; | |
1270 | for (i = 14; i < maxi; i++) | |
1271 | if (p[i] >= ' ' && p[i] <= '~') | |
1272 | printk(" %c", p[i]); | |
1273 | else | |
1274 | printk("%02X", p[i]); | |
1275 | if (maxi < length) | |
1276 | printk(".."); | |
1277 | printk("\"\n"); | |
1278 | printk(KERN_DEBUG "\n"); | |
1279 | #endif /* DEBUG_PACKET_DUMP */ | |
1280 | } | |
1281 | #endif /* defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO) */ | |
1282 | ||
1283 | /*------------------------------------------------------------------*/ | |
1284 | /* | |
1285 | * This is the information which is displayed by the driver at startup. | |
1286 | * There are lots of flags for configuring it to your liking. | |
1287 | */ | |
1288 | static inline void wv_init_info(struct net_device * dev) | |
1289 | { | |
1290 | short ioaddr = dev->base_addr; | |
1291 | net_local *lp = (net_local *) dev->priv; | |
1292 | psa_t psa; | |
1293 | int i; | |
1294 | ||
1295 | /* Read the parameter storage area */ | |
1296 | psa_read(ioaddr, lp->hacr, 0, (unsigned char *) &psa, sizeof(psa)); | |
1297 | ||
1298 | #ifdef DEBUG_PSA_SHOW | |
1299 | wv_psa_show(&psa); | |
1300 | #endif | |
1301 | #ifdef DEBUG_MMC_SHOW | |
1302 | wv_mmc_show(dev); | |
1303 | #endif | |
1304 | #ifdef DEBUG_I82586_SHOW | |
1305 | wv_cu_show(dev); | |
1306 | #endif | |
1307 | ||
1308 | #ifdef DEBUG_BASIC_SHOW | |
1309 | /* Now, let's go for the basic stuff. */ | |
1310 | printk(KERN_NOTICE "%s: WaveLAN at %#x,", dev->name, ioaddr); | |
1311 | for (i = 0; i < WAVELAN_ADDR_SIZE; i++) | |
1312 | printk("%s%02X", (i == 0) ? " " : ":", dev->dev_addr[i]); | |
1313 | printk(", IRQ %d", dev->irq); | |
1314 | ||
1315 | /* Print current network ID. */ | |
1316 | if (psa.psa_nwid_select) | |
1317 | printk(", nwid 0x%02X-%02X", psa.psa_nwid[0], | |
1318 | psa.psa_nwid[1]); | |
1319 | else | |
1320 | printk(", nwid off"); | |
1321 | ||
1322 | /* If 2.00 card */ | |
1323 | if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) & | |
1324 | (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) { | |
1325 | unsigned short freq; | |
1326 | ||
1327 | /* Ask the EEPROM to read the frequency from the first area. */ | |
1328 | fee_read(ioaddr, 0x00, &freq, 1); | |
1329 | ||
1330 | /* Print frequency */ | |
1331 | printk(", 2.00, %ld", (freq >> 6) + 2400L); | |
1332 | ||
1333 | /* Hack! */ | |
1334 | if (freq & 0x20) | |
1335 | printk(".5"); | |
1336 | } else { | |
1337 | printk(", PC"); | |
1338 | switch (psa.psa_comp_number) { | |
1339 | case PSA_COMP_PC_AT_915: | |
1340 | case PSA_COMP_PC_AT_2400: | |
1341 | printk("-AT"); | |
1342 | break; | |
1343 | case PSA_COMP_PC_MC_915: | |
1344 | case PSA_COMP_PC_MC_2400: | |
1345 | printk("-MC"); | |
1346 | break; | |
1347 | case PSA_COMP_PCMCIA_915: | |
1348 | printk("MCIA"); | |
1349 | break; | |
1350 | default: | |
1351 | printk("?"); | |
1352 | } | |
1353 | printk(", "); | |
1354 | switch (psa.psa_subband) { | |
1355 | case PSA_SUBBAND_915: | |
1356 | printk("915"); | |
1357 | break; | |
1358 | case PSA_SUBBAND_2425: | |
1359 | printk("2425"); | |
1360 | break; | |
1361 | case PSA_SUBBAND_2460: | |
1362 | printk("2460"); | |
1363 | break; | |
1364 | case PSA_SUBBAND_2484: | |
1365 | printk("2484"); | |
1366 | break; | |
1367 | case PSA_SUBBAND_2430_5: | |
1368 | printk("2430.5"); | |
1369 | break; | |
1370 | default: | |
1371 | printk("?"); | |
1372 | } | |
1373 | } | |
1374 | ||
1375 | printk(" MHz\n"); | |
1376 | #endif /* DEBUG_BASIC_SHOW */ | |
1377 | ||
1378 | #ifdef DEBUG_VERSION_SHOW | |
1379 | /* Print version information */ | |
1380 | printk(KERN_NOTICE "%s", version); | |
1381 | #endif | |
1382 | } /* wv_init_info */ | |
1383 | ||
1384 | /********************* IOCTL, STATS & RECONFIG *********************/ | |
1385 | /* | |
1386 | * We found here routines that are called by Linux on different | |
1387 | * occasions after the configuration and not for transmitting data | |
1388 | * These may be called when the user use ifconfig, /proc/net/dev | |
1389 | * or wireless extensions | |
1390 | */ | |
1391 | ||
1392 | /*------------------------------------------------------------------*/ | |
1393 | /* | |
1394 | * Get the current Ethernet statistics. This may be called with the | |
1395 | * card open or closed. | |
1396 | * Used when the user read /proc/net/dev | |
1397 | */ | |
1398 | static en_stats *wavelan_get_stats(struct net_device * dev) | |
1399 | { | |
1400 | #ifdef DEBUG_IOCTL_TRACE | |
1401 | printk(KERN_DEBUG "%s: <>wavelan_get_stats()\n", dev->name); | |
1402 | #endif | |
1403 | ||
1404 | return (&((net_local *) dev->priv)->stats); | |
1405 | } | |
1406 | ||
1407 | /*------------------------------------------------------------------*/ | |
1408 | /* | |
1409 | * Set or clear the multicast filter for this adaptor. | |
1410 | * num_addrs == -1 Promiscuous mode, receive all packets | |
1411 | * num_addrs == 0 Normal mode, clear multicast list | |
1412 | * num_addrs > 0 Multicast mode, receive normal and MC packets, | |
1413 | * and do best-effort filtering. | |
1414 | */ | |
1415 | static void wavelan_set_multicast_list(struct net_device * dev) | |
1416 | { | |
1417 | net_local *lp = (net_local *) dev->priv; | |
1418 | ||
1419 | #ifdef DEBUG_IOCTL_TRACE | |
1420 | printk(KERN_DEBUG "%s: ->wavelan_set_multicast_list()\n", | |
1421 | dev->name); | |
1422 | #endif | |
1423 | ||
1424 | #ifdef DEBUG_IOCTL_INFO | |
1425 | printk(KERN_DEBUG | |
1426 | "%s: wavelan_set_multicast_list(): setting Rx mode %02X to %d addresses.\n", | |
1427 | dev->name, dev->flags, dev->mc_count); | |
1428 | #endif | |
1429 | ||
1430 | /* Are we asking for promiscuous mode, | |
1431 | * or all multicast addresses (we don't have that!) | |
1432 | * or too many multicast addresses for the hardware filter? */ | |
1433 | if ((dev->flags & IFF_PROMISC) || | |
1434 | (dev->flags & IFF_ALLMULTI) || | |
1435 | (dev->mc_count > I82586_MAX_MULTICAST_ADDRESSES)) { | |
1436 | /* | |
1437 | * Enable promiscuous mode: receive all packets. | |
1438 | */ | |
1439 | if (!lp->promiscuous) { | |
1440 | lp->promiscuous = 1; | |
1441 | lp->mc_count = 0; | |
1442 | ||
1443 | wv_82586_reconfig(dev); | |
1444 | ||
1445 | /* Tell the kernel that we are doing a really bad job. */ | |
1446 | dev->flags |= IFF_PROMISC; | |
1447 | } | |
1448 | } else | |
1449 | /* Are there multicast addresses to send? */ | |
1450 | if (dev->mc_list != (struct dev_mc_list *) NULL) { | |
1451 | /* | |
1452 | * Disable promiscuous mode, but receive all packets | |
1453 | * in multicast list | |
1454 | */ | |
1455 | #ifdef MULTICAST_AVOID | |
1456 | if (lp->promiscuous || (dev->mc_count != lp->mc_count)) | |
1457 | #endif | |
1458 | { | |
1459 | lp->promiscuous = 0; | |
1460 | lp->mc_count = dev->mc_count; | |
1461 | ||
1462 | wv_82586_reconfig(dev); | |
1463 | } | |
1464 | } else { | |
1465 | /* | |
1466 | * Switch to normal mode: disable promiscuous mode and | |
1467 | * clear the multicast list. | |
1468 | */ | |
1469 | if (lp->promiscuous || lp->mc_count == 0) { | |
1470 | lp->promiscuous = 0; | |
1471 | lp->mc_count = 0; | |
1472 | ||
1473 | wv_82586_reconfig(dev); | |
1474 | } | |
1475 | } | |
1476 | #ifdef DEBUG_IOCTL_TRACE | |
1477 | printk(KERN_DEBUG "%s: <-wavelan_set_multicast_list()\n", | |
1478 | dev->name); | |
1479 | #endif | |
1480 | } | |
1481 | ||
1482 | /*------------------------------------------------------------------*/ | |
1483 | /* | |
1484 | * This function doesn't exist. | |
1485 | * (Note : it was a nice way to test the reconfigure stuff...) | |
1486 | */ | |
1487 | #ifdef SET_MAC_ADDRESS | |
1488 | static int wavelan_set_mac_address(struct net_device * dev, void *addr) | |
1489 | { | |
1490 | struct sockaddr *mac = addr; | |
1491 | ||
1492 | /* Copy the address. */ | |
1493 | memcpy(dev->dev_addr, mac->sa_data, WAVELAN_ADDR_SIZE); | |
1494 | ||
1495 | /* Reconfigure the beast. */ | |
1496 | wv_82586_reconfig(dev); | |
1497 | ||
1498 | return 0; | |
1499 | } | |
1500 | #endif /* SET_MAC_ADDRESS */ | |
1501 | ||
1502 | #ifdef WIRELESS_EXT /* if wireless extensions exist in the kernel */ | |
1503 | ||
1504 | /*------------------------------------------------------------------*/ | |
1505 | /* | |
1506 | * Frequency setting (for hardware capable of it) | |
1507 | * It's a bit complicated and you don't really want to look into it. | |
1508 | * (called in wavelan_ioctl) | |
1509 | */ | |
1510 | static inline int wv_set_frequency(unsigned long ioaddr, /* I/O port of the card */ | |
1511 | iw_freq * frequency) | |
1512 | { | |
1513 | const int BAND_NUM = 10; /* Number of bands */ | |
1514 | long freq = 0L; /* offset to 2.4 GHz in .5 MHz */ | |
1515 | #ifdef DEBUG_IOCTL_INFO | |
1516 | int i; | |
1517 | #endif | |
1518 | ||
1519 | /* Setting by frequency */ | |
1520 | /* Theoretically, you may set any frequency between | |
1521 | * the two limits with a 0.5 MHz precision. In practice, | |
1522 | * I don't want you to have trouble with local regulations. | |
1523 | */ | |
1524 | if ((frequency->e == 1) && | |
1525 | (frequency->m >= (int) 2.412e8) | |
1526 | && (frequency->m <= (int) 2.487e8)) { | |
1527 | freq = ((frequency->m / 10000) - 24000L) / 5; | |
1528 | } | |
1529 | ||
1530 | /* Setting by channel (same as wfreqsel) */ | |
1531 | /* Warning: each channel is 22 MHz wide, so some of the channels | |
1532 | * will interfere. */ | |
1533 | if ((frequency->e == 0) && (frequency->m < BAND_NUM)) { | |
1534 | /* Get frequency offset. */ | |
1535 | freq = channel_bands[frequency->m] >> 1; | |
1536 | } | |
1537 | ||
1538 | /* Verify that the frequency is allowed. */ | |
1539 | if (freq != 0L) { | |
1540 | u16 table[10]; /* Authorized frequency table */ | |
1541 | ||
1542 | /* Read the frequency table. */ | |
1543 | fee_read(ioaddr, 0x71, table, 10); | |
1544 | ||
1545 | #ifdef DEBUG_IOCTL_INFO | |
1546 | printk(KERN_DEBUG "Frequency table: "); | |
1547 | for (i = 0; i < 10; i++) { | |
1548 | printk(" %04X", table[i]); | |
1549 | } | |
1550 | printk("\n"); | |
1551 | #endif | |
1552 | ||
1553 | /* Look in the table to see whether the frequency is allowed. */ | |
1554 | if (!(table[9 - ((freq - 24) / 16)] & | |
1555 | (1 << ((freq - 24) % 16)))) return -EINVAL; /* not allowed */ | |
1556 | } else | |
1557 | return -EINVAL; | |
1558 | ||
1559 | /* if we get a usable frequency */ | |
1560 | if (freq != 0L) { | |
1561 | unsigned short area[16]; | |
1562 | unsigned short dac[2]; | |
1563 | unsigned short area_verify[16]; | |
1564 | unsigned short dac_verify[2]; | |
1565 | /* Corresponding gain (in the power adjust value table) | |
1566 | * See AT&T WaveLAN Data Manual, REF 407-024689/E, page 3-8 | |
1567 | * and WCIN062D.DOC, page 6.2.9. */ | |
1568 | unsigned short power_limit[] = { 40, 80, 120, 160, 0 }; | |
1569 | int power_band = 0; /* Selected band */ | |
1570 | unsigned short power_adjust; /* Correct value */ | |
1571 | ||
1572 | /* Search for the gain. */ | |
1573 | power_band = 0; | |
1574 | while ((freq > power_limit[power_band]) && | |
1575 | (power_limit[++power_band] != 0)); | |
1576 | ||
1577 | /* Read the first area. */ | |
1578 | fee_read(ioaddr, 0x00, area, 16); | |
1579 | ||
1580 | /* Read the DAC. */ | |
1581 | fee_read(ioaddr, 0x60, dac, 2); | |
1582 | ||
1583 | /* Read the new power adjust value. */ | |
1584 | fee_read(ioaddr, 0x6B - (power_band >> 1), &power_adjust, | |
1585 | 1); | |
1586 | if (power_band & 0x1) | |
1587 | power_adjust >>= 8; | |
1588 | else | |
1589 | power_adjust &= 0xFF; | |
1590 | ||
1591 | #ifdef DEBUG_IOCTL_INFO | |
1592 | printk(KERN_DEBUG "WaveLAN EEPROM Area 1: "); | |
1593 | for (i = 0; i < 16; i++) { | |
1594 | printk(" %04X", area[i]); | |
1595 | } | |
1596 | printk("\n"); | |
1597 | ||
1598 | printk(KERN_DEBUG "WaveLAN EEPROM DAC: %04X %04X\n", | |
1599 | dac[0], dac[1]); | |
1600 | #endif | |
1601 | ||
1602 | /* Frequency offset (for info only) */ | |
1603 | area[0] = ((freq << 5) & 0xFFE0) | (area[0] & 0x1F); | |
1604 | ||
1605 | /* Receiver Principle main divider coefficient */ | |
1606 | area[3] = (freq >> 1) + 2400L - 352L; | |
1607 | area[2] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF); | |
1608 | ||
1609 | /* Transmitter Main divider coefficient */ | |
1610 | area[13] = (freq >> 1) + 2400L; | |
1611 | area[12] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF); | |
1612 | ||
1613 | /* Other parts of the area are flags, bit streams or unused. */ | |
1614 | ||
1615 | /* Set the value in the DAC. */ | |
1616 | dac[1] = ((power_adjust >> 1) & 0x7F) | (dac[1] & 0xFF80); | |
1617 | dac[0] = ((power_adjust & 0x1) << 4) | (dac[0] & 0xFFEF); | |
1618 | ||
1619 | /* Write the first area. */ | |
1620 | fee_write(ioaddr, 0x00, area, 16); | |
1621 | ||
1622 | /* Write the DAC. */ | |
1623 | fee_write(ioaddr, 0x60, dac, 2); | |
1624 | ||
1625 | /* We now should verify here that the writing of the EEPROM went OK. */ | |
1626 | ||
1627 | /* Reread the first area. */ | |
1628 | fee_read(ioaddr, 0x00, area_verify, 16); | |
1629 | ||
1630 | /* Reread the DAC. */ | |
1631 | fee_read(ioaddr, 0x60, dac_verify, 2); | |
1632 | ||
1633 | /* Compare. */ | |
1634 | if (memcmp(area, area_verify, 16 * 2) || | |
1635 | memcmp(dac, dac_verify, 2 * 2)) { | |
1636 | #ifdef DEBUG_IOCTL_ERROR | |
1637 | printk(KERN_INFO | |
1638 | "WaveLAN: wv_set_frequency: unable to write new frequency to EEPROM(?).\n"); | |
1639 | #endif | |
1640 | return -EOPNOTSUPP; | |
1641 | } | |
1642 | ||
1643 | /* We must download the frequency parameters to the | |
1644 | * synthesizers (from the EEPROM - area 1) | |
1645 | * Note: as the EEPROM is automatically decremented, we set the end | |
1646 | * if the area... */ | |
1647 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x0F); | |
1648 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), | |
1649 | MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD); | |
1650 | ||
1651 | /* Wait until the download is finished. */ | |
1652 | fee_wait(ioaddr, 100, 100); | |
1653 | ||
1654 | /* We must now download the power adjust value (gain) to | |
1655 | * the synthesizers (from the EEPROM - area 7 - DAC). */ | |
1656 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x61); | |
1657 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), | |
1658 | MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD); | |
1659 | ||
1660 | /* Wait for the download to finish. */ | |
1661 | fee_wait(ioaddr, 100, 100); | |
1662 | ||
1663 | #ifdef DEBUG_IOCTL_INFO | |
1664 | /* Verification of what we have done */ | |
1665 | ||
1666 | printk(KERN_DEBUG "WaveLAN EEPROM Area 1: "); | |
1667 | for (i = 0; i < 16; i++) { | |
1668 | printk(" %04X", area_verify[i]); | |
1669 | } | |
1670 | printk("\n"); | |
1671 | ||
1672 | printk(KERN_DEBUG "WaveLAN EEPROM DAC: %04X %04X\n", | |
1673 | dac_verify[0], dac_verify[1]); | |
1674 | #endif | |
1675 | ||
1676 | return 0; | |
1677 | } else | |
1678 | return -EINVAL; /* Bah, never get there... */ | |
1679 | } | |
1680 | ||
1681 | /*------------------------------------------------------------------*/ | |
1682 | /* | |
1683 | * Give the list of available frequencies. | |
1684 | */ | |
1685 | static inline int wv_frequency_list(unsigned long ioaddr, /* I/O port of the card */ | |
1686 | iw_freq * list, /* List of frequencies to fill */ | |
1687 | int max) | |
1688 | { /* Maximum number of frequencies */ | |
1689 | u16 table[10]; /* Authorized frequency table */ | |
1690 | long freq = 0L; /* offset to 2.4 GHz in .5 MHz + 12 MHz */ | |
1691 | int i; /* index in the table */ | |
1692 | int c = 0; /* Channel number */ | |
1693 | ||
1694 | /* Read the frequency table. */ | |
1695 | fee_read(ioaddr, 0x71 /* frequency table */ , table, 10); | |
1696 | ||
1697 | /* Check all frequencies. */ | |
1698 | i = 0; | |
1699 | for (freq = 0; freq < 150; freq++) | |
1700 | /* Look in the table if the frequency is allowed */ | |
1701 | if (table[9 - (freq / 16)] & (1 << (freq % 16))) { | |
1702 | /* Compute approximate channel number */ | |
1703 | while ((((channel_bands[c] >> 1) - 24) < freq) && | |
1704 | (c < NELS(channel_bands))) | |
1705 | c++; | |
1706 | list[i].i = c; /* Set the list index */ | |
1707 | ||
1708 | /* put in the list */ | |
1709 | list[i].m = (((freq + 24) * 5) + 24000L) * 10000; | |
1710 | list[i++].e = 1; | |
1711 | ||
1712 | /* Check number. */ | |
1713 | if (i >= max) | |
1714 | return (i); | |
1715 | } | |
1716 | ||
1717 | return (i); | |
1718 | } | |
1719 | ||
1720 | #ifdef IW_WIRELESS_SPY | |
1721 | /*------------------------------------------------------------------*/ | |
1722 | /* | |
1723 | * Gather wireless spy statistics: for each packet, compare the source | |
1724 | * address with our list, and if they match, get the statistics. | |
1725 | * Sorry, but this function really needs the wireless extensions. | |
1726 | */ | |
1727 | static inline void wl_spy_gather(struct net_device * dev, | |
1728 | u8 * mac, /* MAC address */ | |
1729 | u8 * stats) /* Statistics to gather */ | |
1730 | { | |
1731 | struct iw_quality wstats; | |
1732 | ||
1733 | wstats.qual = stats[2] & MMR_SGNL_QUAL; | |
1734 | wstats.level = stats[0] & MMR_SIGNAL_LVL; | |
1735 | wstats.noise = stats[1] & MMR_SILENCE_LVL; | |
1736 | wstats.updated = 0x7; | |
1737 | ||
1738 | /* Update spy records */ | |
1739 | wireless_spy_update(dev, mac, &wstats); | |
1740 | } | |
1741 | #endif /* IW_WIRELESS_SPY */ | |
1742 | ||
1743 | #ifdef HISTOGRAM | |
1744 | /*------------------------------------------------------------------*/ | |
1745 | /* | |
1746 | * This function calculates a histogram of the signal level. | |
1747 | * As the noise is quite constant, it's like doing it on the SNR. | |
1748 | * We have defined a set of interval (lp->his_range), and each time | |
1749 | * the level goes in that interval, we increment the count (lp->his_sum). | |
1750 | * With this histogram you may detect if one WaveLAN is really weak, | |
1751 | * or you may also calculate the mean and standard deviation of the level. | |
1752 | */ | |
1753 | static inline void wl_his_gather(struct net_device * dev, u8 * stats) | |
1754 | { /* Statistics to gather */ | |
1755 | net_local *lp = (net_local *) dev->priv; | |
1756 | u8 level = stats[0] & MMR_SIGNAL_LVL; | |
1757 | int i; | |
1758 | ||
1759 | /* Find the correct interval. */ | |
1760 | i = 0; | |
1761 | while ((i < (lp->his_number - 1)) | |
1762 | && (level >= lp->his_range[i++])); | |
1763 | ||
1764 | /* Increment interval counter. */ | |
1765 | (lp->his_sum[i])++; | |
1766 | } | |
1767 | #endif /* HISTOGRAM */ | |
1768 | ||
1769 | /*------------------------------------------------------------------*/ | |
1770 | /* | |
1771 | * Wireless Handler : get protocol name | |
1772 | */ | |
1773 | static int wavelan_get_name(struct net_device *dev, | |
1774 | struct iw_request_info *info, | |
1775 | union iwreq_data *wrqu, | |
1776 | char *extra) | |
1777 | { | |
1778 | strcpy(wrqu->name, "WaveLAN"); | |
1779 | return 0; | |
1780 | } | |
1781 | ||
1782 | /*------------------------------------------------------------------*/ | |
1783 | /* | |
1784 | * Wireless Handler : set NWID | |
1785 | */ | |
1786 | static int wavelan_set_nwid(struct net_device *dev, | |
1787 | struct iw_request_info *info, | |
1788 | union iwreq_data *wrqu, | |
1789 | char *extra) | |
1790 | { | |
1791 | unsigned long ioaddr = dev->base_addr; | |
1792 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ | |
1793 | psa_t psa; | |
1794 | mm_t m; | |
1795 | unsigned long flags; | |
1796 | int ret = 0; | |
1797 | ||
1798 | /* Disable interrupts and save flags. */ | |
1799 | spin_lock_irqsave(&lp->spinlock, flags); | |
1800 | ||
1801 | /* Set NWID in WaveLAN. */ | |
1802 | if (!wrqu->nwid.disabled) { | |
1803 | /* Set NWID in psa */ | |
1804 | psa.psa_nwid[0] = (wrqu->nwid.value & 0xFF00) >> 8; | |
1805 | psa.psa_nwid[1] = wrqu->nwid.value & 0xFF; | |
1806 | psa.psa_nwid_select = 0x01; | |
1807 | psa_write(ioaddr, lp->hacr, | |
1808 | (char *) psa.psa_nwid - (char *) &psa, | |
1809 | (unsigned char *) psa.psa_nwid, 3); | |
1810 | ||
1811 | /* Set NWID in mmc. */ | |
1812 | m.w.mmw_netw_id_l = psa.psa_nwid[1]; | |
1813 | m.w.mmw_netw_id_h = psa.psa_nwid[0]; | |
1814 | mmc_write(ioaddr, | |
1815 | (char *) &m.w.mmw_netw_id_l - | |
1816 | (char *) &m, | |
1817 | (unsigned char *) &m.w.mmw_netw_id_l, 2); | |
1818 | mmc_out(ioaddr, mmwoff(0, mmw_loopt_sel), 0x00); | |
1819 | } else { | |
1820 | /* Disable NWID in the psa. */ | |
1821 | psa.psa_nwid_select = 0x00; | |
1822 | psa_write(ioaddr, lp->hacr, | |
1823 | (char *) &psa.psa_nwid_select - | |
1824 | (char *) &psa, | |
1825 | (unsigned char *) &psa.psa_nwid_select, | |
1826 | 1); | |
1827 | ||
1828 | /* Disable NWID in the mmc (no filtering). */ | |
1829 | mmc_out(ioaddr, mmwoff(0, mmw_loopt_sel), | |
1830 | MMW_LOOPT_SEL_DIS_NWID); | |
1831 | } | |
1832 | /* update the Wavelan checksum */ | |
1833 | update_psa_checksum(dev, ioaddr, lp->hacr); | |
1834 | ||
1835 | /* Enable interrupts and restore flags. */ | |
1836 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
1837 | ||
1838 | return ret; | |
1839 | } | |
1840 | ||
1841 | /*------------------------------------------------------------------*/ | |
1842 | /* | |
1843 | * Wireless Handler : get NWID | |
1844 | */ | |
1845 | static int wavelan_get_nwid(struct net_device *dev, | |
1846 | struct iw_request_info *info, | |
1847 | union iwreq_data *wrqu, | |
1848 | char *extra) | |
1849 | { | |
1850 | unsigned long ioaddr = dev->base_addr; | |
1851 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ | |
1852 | psa_t psa; | |
1853 | unsigned long flags; | |
1854 | int ret = 0; | |
1855 | ||
1856 | /* Disable interrupts and save flags. */ | |
1857 | spin_lock_irqsave(&lp->spinlock, flags); | |
1858 | ||
1859 | /* Read the NWID. */ | |
1860 | psa_read(ioaddr, lp->hacr, | |
1861 | (char *) psa.psa_nwid - (char *) &psa, | |
1862 | (unsigned char *) psa.psa_nwid, 3); | |
1863 | wrqu->nwid.value = (psa.psa_nwid[0] << 8) + psa.psa_nwid[1]; | |
1864 | wrqu->nwid.disabled = !(psa.psa_nwid_select); | |
1865 | wrqu->nwid.fixed = 1; /* Superfluous */ | |
1866 | ||
1867 | /* Enable interrupts and restore flags. */ | |
1868 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
1869 | ||
1870 | return ret; | |
1871 | } | |
1872 | ||
1873 | /*------------------------------------------------------------------*/ | |
1874 | /* | |
1875 | * Wireless Handler : set frequency | |
1876 | */ | |
1877 | static int wavelan_set_freq(struct net_device *dev, | |
1878 | struct iw_request_info *info, | |
1879 | union iwreq_data *wrqu, | |
1880 | char *extra) | |
1881 | { | |
1882 | unsigned long ioaddr = dev->base_addr; | |
1883 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ | |
1884 | unsigned long flags; | |
1885 | int ret; | |
1886 | ||
1887 | /* Disable interrupts and save flags. */ | |
1888 | spin_lock_irqsave(&lp->spinlock, flags); | |
1889 | ||
1890 | /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */ | |
1891 | if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) & | |
1892 | (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) | |
1893 | ret = wv_set_frequency(ioaddr, &(wrqu->freq)); | |
1894 | else | |
1895 | ret = -EOPNOTSUPP; | |
1896 | ||
1897 | /* Enable interrupts and restore flags. */ | |
1898 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
1899 | ||
1900 | return ret; | |
1901 | } | |
1902 | ||
1903 | /*------------------------------------------------------------------*/ | |
1904 | /* | |
1905 | * Wireless Handler : get frequency | |
1906 | */ | |
1907 | static int wavelan_get_freq(struct net_device *dev, | |
1908 | struct iw_request_info *info, | |
1909 | union iwreq_data *wrqu, | |
1910 | char *extra) | |
1911 | { | |
1912 | unsigned long ioaddr = dev->base_addr; | |
1913 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ | |
1914 | psa_t psa; | |
1915 | unsigned long flags; | |
1916 | int ret = 0; | |
1917 | ||
1918 | /* Disable interrupts and save flags. */ | |
1919 | spin_lock_irqsave(&lp->spinlock, flags); | |
1920 | ||
1921 | /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). | |
1922 | * Does it work for everybody, especially old cards? */ | |
1923 | if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) & | |
1924 | (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) { | |
1925 | unsigned short freq; | |
1926 | ||
1927 | /* Ask the EEPROM to read the frequency from the first area. */ | |
1928 | fee_read(ioaddr, 0x00, &freq, 1); | |
1929 | wrqu->freq.m = ((freq >> 5) * 5 + 24000L) * 10000; | |
1930 | wrqu->freq.e = 1; | |
1931 | } else { | |
1932 | psa_read(ioaddr, lp->hacr, | |
1933 | (char *) &psa.psa_subband - (char *) &psa, | |
1934 | (unsigned char *) &psa.psa_subband, 1); | |
1935 | ||
1936 | if (psa.psa_subband <= 4) { | |
1937 | wrqu->freq.m = fixed_bands[psa.psa_subband]; | |
1938 | wrqu->freq.e = (psa.psa_subband != 0); | |
1939 | } else | |
1940 | ret = -EOPNOTSUPP; | |
1941 | } | |
1942 | ||
1943 | /* Enable interrupts and restore flags. */ | |
1944 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
1945 | ||
1946 | return ret; | |
1947 | } | |
1948 | ||
1949 | /*------------------------------------------------------------------*/ | |
1950 | /* | |
1951 | * Wireless Handler : set level threshold | |
1952 | */ | |
1953 | static int wavelan_set_sens(struct net_device *dev, | |
1954 | struct iw_request_info *info, | |
1955 | union iwreq_data *wrqu, | |
1956 | char *extra) | |
1957 | { | |
1958 | unsigned long ioaddr = dev->base_addr; | |
1959 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ | |
1960 | psa_t psa; | |
1961 | unsigned long flags; | |
1962 | int ret = 0; | |
1963 | ||
1964 | /* Disable interrupts and save flags. */ | |
1965 | spin_lock_irqsave(&lp->spinlock, flags); | |
1966 | ||
1967 | /* Set the level threshold. */ | |
1968 | /* We should complain loudly if wrqu->sens.fixed = 0, because we | |
1969 | * can't set auto mode... */ | |
1970 | psa.psa_thr_pre_set = wrqu->sens.value & 0x3F; | |
1971 | psa_write(ioaddr, lp->hacr, | |
1972 | (char *) &psa.psa_thr_pre_set - (char *) &psa, | |
1973 | (unsigned char *) &psa.psa_thr_pre_set, 1); | |
1974 | /* update the Wavelan checksum */ | |
1975 | update_psa_checksum(dev, ioaddr, lp->hacr); | |
1976 | mmc_out(ioaddr, mmwoff(0, mmw_thr_pre_set), | |
1977 | psa.psa_thr_pre_set); | |
1978 | ||
1979 | /* Enable interrupts and restore flags. */ | |
1980 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
1981 | ||
1982 | return ret; | |
1983 | } | |
1984 | ||
1985 | /*------------------------------------------------------------------*/ | |
1986 | /* | |
1987 | * Wireless Handler : get level threshold | |
1988 | */ | |
1989 | static int wavelan_get_sens(struct net_device *dev, | |
1990 | struct iw_request_info *info, | |
1991 | union iwreq_data *wrqu, | |
1992 | char *extra) | |
1993 | { | |
1994 | unsigned long ioaddr = dev->base_addr; | |
1995 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ | |
1996 | psa_t psa; | |
1997 | unsigned long flags; | |
1998 | int ret = 0; | |
1999 | ||
2000 | /* Disable interrupts and save flags. */ | |
2001 | spin_lock_irqsave(&lp->spinlock, flags); | |
2002 | ||
2003 | /* Read the level threshold. */ | |
2004 | psa_read(ioaddr, lp->hacr, | |
2005 | (char *) &psa.psa_thr_pre_set - (char *) &psa, | |
2006 | (unsigned char *) &psa.psa_thr_pre_set, 1); | |
2007 | wrqu->sens.value = psa.psa_thr_pre_set & 0x3F; | |
2008 | wrqu->sens.fixed = 1; | |
2009 | ||
2010 | /* Enable interrupts and restore flags. */ | |
2011 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
2012 | ||
2013 | return ret; | |
2014 | } | |
2015 | ||
2016 | /*------------------------------------------------------------------*/ | |
2017 | /* | |
2018 | * Wireless Handler : set encryption key | |
2019 | */ | |
2020 | static int wavelan_set_encode(struct net_device *dev, | |
2021 | struct iw_request_info *info, | |
2022 | union iwreq_data *wrqu, | |
2023 | char *extra) | |
2024 | { | |
2025 | unsigned long ioaddr = dev->base_addr; | |
2026 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ | |
2027 | unsigned long flags; | |
2028 | psa_t psa; | |
2029 | int ret = 0; | |
2030 | ||
2031 | /* Disable interrupts and save flags. */ | |
2032 | spin_lock_irqsave(&lp->spinlock, flags); | |
2033 | ||
2034 | /* Check if capable of encryption */ | |
2035 | if (!mmc_encr(ioaddr)) { | |
2036 | ret = -EOPNOTSUPP; | |
2037 | } | |
2038 | ||
2039 | /* Check the size of the key */ | |
2040 | if((wrqu->encoding.length != 8) && (wrqu->encoding.length != 0)) { | |
2041 | ret = -EINVAL; | |
2042 | } | |
2043 | ||
2044 | if(!ret) { | |
2045 | /* Basic checking... */ | |
2046 | if (wrqu->encoding.length == 8) { | |
2047 | /* Copy the key in the driver */ | |
2048 | memcpy(psa.psa_encryption_key, extra, | |
2049 | wrqu->encoding.length); | |
2050 | psa.psa_encryption_select = 1; | |
2051 | ||
2052 | psa_write(ioaddr, lp->hacr, | |
2053 | (char *) &psa.psa_encryption_select - | |
2054 | (char *) &psa, | |
2055 | (unsigned char *) &psa. | |
2056 | psa_encryption_select, 8 + 1); | |
2057 | ||
2058 | mmc_out(ioaddr, mmwoff(0, mmw_encr_enable), | |
2059 | MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE); | |
2060 | mmc_write(ioaddr, mmwoff(0, mmw_encr_key), | |
2061 | (unsigned char *) &psa. | |
2062 | psa_encryption_key, 8); | |
2063 | } | |
2064 | ||
2065 | /* disable encryption */ | |
2066 | if (wrqu->encoding.flags & IW_ENCODE_DISABLED) { | |
2067 | psa.psa_encryption_select = 0; | |
2068 | psa_write(ioaddr, lp->hacr, | |
2069 | (char *) &psa.psa_encryption_select - | |
2070 | (char *) &psa, | |
2071 | (unsigned char *) &psa. | |
2072 | psa_encryption_select, 1); | |
2073 | ||
2074 | mmc_out(ioaddr, mmwoff(0, mmw_encr_enable), 0); | |
2075 | } | |
2076 | /* update the Wavelan checksum */ | |
2077 | update_psa_checksum(dev, ioaddr, lp->hacr); | |
2078 | } | |
2079 | ||
2080 | /* Enable interrupts and restore flags. */ | |
2081 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
2082 | ||
2083 | return ret; | |
2084 | } | |
2085 | ||
2086 | /*------------------------------------------------------------------*/ | |
2087 | /* | |
2088 | * Wireless Handler : get encryption key | |
2089 | */ | |
2090 | static int wavelan_get_encode(struct net_device *dev, | |
2091 | struct iw_request_info *info, | |
2092 | union iwreq_data *wrqu, | |
2093 | char *extra) | |
2094 | { | |
2095 | unsigned long ioaddr = dev->base_addr; | |
2096 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ | |
2097 | psa_t psa; | |
2098 | unsigned long flags; | |
2099 | int ret = 0; | |
2100 | ||
2101 | /* Disable interrupts and save flags. */ | |
2102 | spin_lock_irqsave(&lp->spinlock, flags); | |
2103 | ||
2104 | /* Check if encryption is available */ | |
2105 | if (!mmc_encr(ioaddr)) { | |
2106 | ret = -EOPNOTSUPP; | |
2107 | } else { | |
2108 | /* Read the encryption key */ | |
2109 | psa_read(ioaddr, lp->hacr, | |
2110 | (char *) &psa.psa_encryption_select - | |
2111 | (char *) &psa, | |
2112 | (unsigned char *) &psa. | |
2113 | psa_encryption_select, 1 + 8); | |
2114 | ||
2115 | /* encryption is enabled ? */ | |
2116 | if (psa.psa_encryption_select) | |
2117 | wrqu->encoding.flags = IW_ENCODE_ENABLED; | |
2118 | else | |
2119 | wrqu->encoding.flags = IW_ENCODE_DISABLED; | |
2120 | wrqu->encoding.flags |= mmc_encr(ioaddr); | |
2121 | ||
2122 | /* Copy the key to the user buffer */ | |
2123 | wrqu->encoding.length = 8; | |
2124 | memcpy(extra, psa.psa_encryption_key, wrqu->encoding.length); | |
2125 | } | |
2126 | ||
2127 | /* Enable interrupts and restore flags. */ | |
2128 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
2129 | ||
2130 | return ret; | |
2131 | } | |
2132 | ||
2133 | /*------------------------------------------------------------------*/ | |
2134 | /* | |
2135 | * Wireless Handler : get range info | |
2136 | */ | |
2137 | static int wavelan_get_range(struct net_device *dev, | |
2138 | struct iw_request_info *info, | |
2139 | union iwreq_data *wrqu, | |
2140 | char *extra) | |
2141 | { | |
2142 | unsigned long ioaddr = dev->base_addr; | |
2143 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ | |
2144 | struct iw_range *range = (struct iw_range *) extra; | |
2145 | unsigned long flags; | |
2146 | int ret = 0; | |
2147 | ||
2148 | /* Set the length (very important for backward compatibility) */ | |
2149 | wrqu->data.length = sizeof(struct iw_range); | |
2150 | ||
2151 | /* Set all the info we don't care or don't know about to zero */ | |
2152 | memset(range, 0, sizeof(struct iw_range)); | |
2153 | ||
2154 | /* Set the Wireless Extension versions */ | |
2155 | range->we_version_compiled = WIRELESS_EXT; | |
2156 | range->we_version_source = 9; | |
2157 | ||
2158 | /* Set information in the range struct. */ | |
2159 | range->throughput = 1.6 * 1000 * 1000; /* don't argue on this ! */ | |
2160 | range->min_nwid = 0x0000; | |
2161 | range->max_nwid = 0xFFFF; | |
2162 | ||
2163 | range->sensitivity = 0x3F; | |
2164 | range->max_qual.qual = MMR_SGNL_QUAL; | |
2165 | range->max_qual.level = MMR_SIGNAL_LVL; | |
2166 | range->max_qual.noise = MMR_SILENCE_LVL; | |
2167 | range->avg_qual.qual = MMR_SGNL_QUAL; /* Always max */ | |
2168 | /* Need to get better values for those two */ | |
2169 | range->avg_qual.level = 30; | |
2170 | range->avg_qual.noise = 8; | |
2171 | ||
2172 | range->num_bitrates = 1; | |
2173 | range->bitrate[0] = 2000000; /* 2 Mb/s */ | |
2174 | ||
2175 | /* Event capability (kernel + driver) */ | |
2176 | range->event_capa[0] = (IW_EVENT_CAPA_MASK(0x8B02) | | |
2177 | IW_EVENT_CAPA_MASK(0x8B04)); | |
2178 | range->event_capa[1] = IW_EVENT_CAPA_K_1; | |
2179 | ||
2180 | /* Disable interrupts and save flags. */ | |
2181 | spin_lock_irqsave(&lp->spinlock, flags); | |
2182 | ||
2183 | /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */ | |
2184 | if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) & | |
2185 | (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) { | |
2186 | range->num_channels = 10; | |
2187 | range->num_frequency = wv_frequency_list(ioaddr, range->freq, | |
2188 | IW_MAX_FREQUENCIES); | |
2189 | } else | |
2190 | range->num_channels = range->num_frequency = 0; | |
2191 | ||
2192 | /* Encryption supported ? */ | |
2193 | if (mmc_encr(ioaddr)) { | |
2194 | range->encoding_size[0] = 8; /* DES = 64 bits key */ | |
2195 | range->num_encoding_sizes = 1; | |
2196 | range->max_encoding_tokens = 1; /* Only one key possible */ | |
2197 | } else { | |
2198 | range->num_encoding_sizes = 0; | |
2199 | range->max_encoding_tokens = 0; | |
2200 | } | |
2201 | ||
2202 | /* Enable interrupts and restore flags. */ | |
2203 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
2204 | ||
2205 | return ret; | |
2206 | } | |
2207 | ||
2208 | /*------------------------------------------------------------------*/ | |
2209 | /* | |
2210 | * Wireless Private Handler : set quality threshold | |
2211 | */ | |
2212 | static int wavelan_set_qthr(struct net_device *dev, | |
2213 | struct iw_request_info *info, | |
2214 | union iwreq_data *wrqu, | |
2215 | char *extra) | |
2216 | { | |
2217 | unsigned long ioaddr = dev->base_addr; | |
2218 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ | |
2219 | psa_t psa; | |
2220 | unsigned long flags; | |
2221 | ||
2222 | /* Disable interrupts and save flags. */ | |
2223 | spin_lock_irqsave(&lp->spinlock, flags); | |
2224 | ||
2225 | psa.psa_quality_thr = *(extra) & 0x0F; | |
2226 | psa_write(ioaddr, lp->hacr, | |
2227 | (char *) &psa.psa_quality_thr - (char *) &psa, | |
2228 | (unsigned char *) &psa.psa_quality_thr, 1); | |
2229 | /* update the Wavelan checksum */ | |
2230 | update_psa_checksum(dev, ioaddr, lp->hacr); | |
2231 | mmc_out(ioaddr, mmwoff(0, mmw_quality_thr), | |
2232 | psa.psa_quality_thr); | |
2233 | ||
2234 | /* Enable interrupts and restore flags. */ | |
2235 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
2236 | ||
2237 | return 0; | |
2238 | } | |
2239 | ||
2240 | /*------------------------------------------------------------------*/ | |
2241 | /* | |
2242 | * Wireless Private Handler : get quality threshold | |
2243 | */ | |
2244 | static int wavelan_get_qthr(struct net_device *dev, | |
2245 | struct iw_request_info *info, | |
2246 | union iwreq_data *wrqu, | |
2247 | char *extra) | |
2248 | { | |
2249 | unsigned long ioaddr = dev->base_addr; | |
2250 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ | |
2251 | psa_t psa; | |
2252 | unsigned long flags; | |
2253 | ||
2254 | /* Disable interrupts and save flags. */ | |
2255 | spin_lock_irqsave(&lp->spinlock, flags); | |
2256 | ||
2257 | psa_read(ioaddr, lp->hacr, | |
2258 | (char *) &psa.psa_quality_thr - (char *) &psa, | |
2259 | (unsigned char *) &psa.psa_quality_thr, 1); | |
2260 | *(extra) = psa.psa_quality_thr & 0x0F; | |
2261 | ||
2262 | /* Enable interrupts and restore flags. */ | |
2263 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
2264 | ||
2265 | return 0; | |
2266 | } | |
2267 | ||
2268 | #ifdef HISTOGRAM | |
2269 | /*------------------------------------------------------------------*/ | |
2270 | /* | |
2271 | * Wireless Private Handler : set histogram | |
2272 | */ | |
2273 | static int wavelan_set_histo(struct net_device *dev, | |
2274 | struct iw_request_info *info, | |
2275 | union iwreq_data *wrqu, | |
2276 | char *extra) | |
2277 | { | |
2278 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ | |
2279 | ||
2280 | /* Check the number of intervals. */ | |
2281 | if (wrqu->data.length > 16) { | |
2282 | return(-E2BIG); | |
2283 | } | |
2284 | ||
2285 | /* Disable histo while we copy the addresses. | |
2286 | * As we don't disable interrupts, we need to do this */ | |
2287 | lp->his_number = 0; | |
2288 | ||
2289 | /* Are there ranges to copy? */ | |
2290 | if (wrqu->data.length > 0) { | |
2291 | /* Copy interval ranges to the driver */ | |
2292 | memcpy(lp->his_range, extra, wrqu->data.length); | |
2293 | ||
2294 | { | |
2295 | int i; | |
2296 | printk(KERN_DEBUG "Histo :"); | |
2297 | for(i = 0; i < wrqu->data.length; i++) | |
2298 | printk(" %d", lp->his_range[i]); | |
2299 | printk("\n"); | |
2300 | } | |
2301 | ||
2302 | /* Reset result structure. */ | |
2303 | memset(lp->his_sum, 0x00, sizeof(long) * 16); | |
2304 | } | |
2305 | ||
2306 | /* Now we can set the number of ranges */ | |
2307 | lp->his_number = wrqu->data.length; | |
2308 | ||
2309 | return(0); | |
2310 | } | |
2311 | ||
2312 | /*------------------------------------------------------------------*/ | |
2313 | /* | |
2314 | * Wireless Private Handler : get histogram | |
2315 | */ | |
2316 | static int wavelan_get_histo(struct net_device *dev, | |
2317 | struct iw_request_info *info, | |
2318 | union iwreq_data *wrqu, | |
2319 | char *extra) | |
2320 | { | |
2321 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ | |
2322 | ||
2323 | /* Set the number of intervals. */ | |
2324 | wrqu->data.length = lp->his_number; | |
2325 | ||
2326 | /* Give back the distribution statistics */ | |
2327 | if(lp->his_number > 0) | |
2328 | memcpy(extra, lp->his_sum, sizeof(long) * lp->his_number); | |
2329 | ||
2330 | return(0); | |
2331 | } | |
2332 | #endif /* HISTOGRAM */ | |
2333 | ||
2334 | /*------------------------------------------------------------------*/ | |
2335 | /* | |
2336 | * Structures to export the Wireless Handlers | |
2337 | */ | |
2338 | ||
2339 | static const iw_handler wavelan_handler[] = | |
2340 | { | |
2341 | NULL, /* SIOCSIWNAME */ | |
2342 | wavelan_get_name, /* SIOCGIWNAME */ | |
2343 | wavelan_set_nwid, /* SIOCSIWNWID */ | |
2344 | wavelan_get_nwid, /* SIOCGIWNWID */ | |
2345 | wavelan_set_freq, /* SIOCSIWFREQ */ | |
2346 | wavelan_get_freq, /* SIOCGIWFREQ */ | |
2347 | NULL, /* SIOCSIWMODE */ | |
2348 | NULL, /* SIOCGIWMODE */ | |
2349 | wavelan_set_sens, /* SIOCSIWSENS */ | |
2350 | wavelan_get_sens, /* SIOCGIWSENS */ | |
2351 | NULL, /* SIOCSIWRANGE */ | |
2352 | wavelan_get_range, /* SIOCGIWRANGE */ | |
2353 | NULL, /* SIOCSIWPRIV */ | |
2354 | NULL, /* SIOCGIWPRIV */ | |
2355 | NULL, /* SIOCSIWSTATS */ | |
2356 | NULL, /* SIOCGIWSTATS */ | |
2357 | iw_handler_set_spy, /* SIOCSIWSPY */ | |
2358 | iw_handler_get_spy, /* SIOCGIWSPY */ | |
2359 | iw_handler_set_thrspy, /* SIOCSIWTHRSPY */ | |
2360 | iw_handler_get_thrspy, /* SIOCGIWTHRSPY */ | |
2361 | NULL, /* SIOCSIWAP */ | |
2362 | NULL, /* SIOCGIWAP */ | |
2363 | NULL, /* -- hole -- */ | |
2364 | NULL, /* SIOCGIWAPLIST */ | |
2365 | NULL, /* -- hole -- */ | |
2366 | NULL, /* -- hole -- */ | |
2367 | NULL, /* SIOCSIWESSID */ | |
2368 | NULL, /* SIOCGIWESSID */ | |
2369 | NULL, /* SIOCSIWNICKN */ | |
2370 | NULL, /* SIOCGIWNICKN */ | |
2371 | NULL, /* -- hole -- */ | |
2372 | NULL, /* -- hole -- */ | |
2373 | NULL, /* SIOCSIWRATE */ | |
2374 | NULL, /* SIOCGIWRATE */ | |
2375 | NULL, /* SIOCSIWRTS */ | |
2376 | NULL, /* SIOCGIWRTS */ | |
2377 | NULL, /* SIOCSIWFRAG */ | |
2378 | NULL, /* SIOCGIWFRAG */ | |
2379 | NULL, /* SIOCSIWTXPOW */ | |
2380 | NULL, /* SIOCGIWTXPOW */ | |
2381 | NULL, /* SIOCSIWRETRY */ | |
2382 | NULL, /* SIOCGIWRETRY */ | |
2383 | /* Bummer ! Why those are only at the end ??? */ | |
2384 | wavelan_set_encode, /* SIOCSIWENCODE */ | |
2385 | wavelan_get_encode, /* SIOCGIWENCODE */ | |
2386 | }; | |
2387 | ||
2388 | static const iw_handler wavelan_private_handler[] = | |
2389 | { | |
2390 | wavelan_set_qthr, /* SIOCIWFIRSTPRIV */ | |
2391 | wavelan_get_qthr, /* SIOCIWFIRSTPRIV + 1 */ | |
2392 | #ifdef HISTOGRAM | |
2393 | wavelan_set_histo, /* SIOCIWFIRSTPRIV + 2 */ | |
2394 | wavelan_get_histo, /* SIOCIWFIRSTPRIV + 3 */ | |
2395 | #endif /* HISTOGRAM */ | |
2396 | }; | |
2397 | ||
2398 | static const struct iw_priv_args wavelan_private_args[] = { | |
2399 | /*{ cmd, set_args, get_args, name } */ | |
2400 | { SIOCSIPQTHR, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "setqualthr" }, | |
2401 | { SIOCGIPQTHR, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "getqualthr" }, | |
2402 | { SIOCSIPHISTO, IW_PRIV_TYPE_BYTE | 16, 0, "sethisto" }, | |
2403 | { SIOCGIPHISTO, 0, IW_PRIV_TYPE_INT | 16, "gethisto" }, | |
2404 | }; | |
2405 | ||
2406 | static const struct iw_handler_def wavelan_handler_def = | |
2407 | { | |
2408 | .num_standard = sizeof(wavelan_handler)/sizeof(iw_handler), | |
2409 | .num_private = sizeof(wavelan_private_handler)/sizeof(iw_handler), | |
2410 | .num_private_args = sizeof(wavelan_private_args)/sizeof(struct iw_priv_args), | |
2411 | .standard = wavelan_handler, | |
2412 | .private = wavelan_private_handler, | |
2413 | .private_args = wavelan_private_args, | |
2414 | .get_wireless_stats = wavelan_get_wireless_stats, | |
2415 | }; | |
2416 | ||
2417 | /*------------------------------------------------------------------*/ | |
2418 | /* | |
2419 | * Get wireless statistics. | |
2420 | * Called by /proc/net/wireless | |
2421 | */ | |
2422 | static iw_stats *wavelan_get_wireless_stats(struct net_device * dev) | |
2423 | { | |
2424 | unsigned long ioaddr = dev->base_addr; | |
2425 | net_local *lp = (net_local *) dev->priv; | |
2426 | mmr_t m; | |
2427 | iw_stats *wstats; | |
2428 | unsigned long flags; | |
2429 | ||
2430 | #ifdef DEBUG_IOCTL_TRACE | |
2431 | printk(KERN_DEBUG "%s: ->wavelan_get_wireless_stats()\n", | |
2432 | dev->name); | |
2433 | #endif | |
2434 | ||
2435 | /* Check */ | |
2436 | if (lp == (net_local *) NULL) | |
2437 | return (iw_stats *) NULL; | |
2438 | ||
2439 | /* Disable interrupts and save flags. */ | |
2440 | spin_lock_irqsave(&lp->spinlock, flags); | |
2441 | ||
2442 | wstats = &lp->wstats; | |
2443 | ||
2444 | /* Get data from the mmc. */ | |
2445 | mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1); | |
2446 | ||
2447 | mmc_read(ioaddr, mmroff(0, mmr_dce_status), &m.mmr_dce_status, 1); | |
2448 | mmc_read(ioaddr, mmroff(0, mmr_wrong_nwid_l), &m.mmr_wrong_nwid_l, | |
2449 | 2); | |
2450 | mmc_read(ioaddr, mmroff(0, mmr_thr_pre_set), &m.mmr_thr_pre_set, | |
2451 | 4); | |
2452 | ||
2453 | mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0); | |
2454 | ||
2455 | /* Copy data to wireless stuff. */ | |
2456 | wstats->status = m.mmr_dce_status & MMR_DCE_STATUS; | |
2457 | wstats->qual.qual = m.mmr_sgnl_qual & MMR_SGNL_QUAL; | |
2458 | wstats->qual.level = m.mmr_signal_lvl & MMR_SIGNAL_LVL; | |
2459 | wstats->qual.noise = m.mmr_silence_lvl & MMR_SILENCE_LVL; | |
2460 | wstats->qual.updated = (((m. mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 7) | |
2461 | | ((m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 6) | |
2462 | | ((m.mmr_silence_lvl & MMR_SILENCE_LVL_VALID) >> 5)); | |
2463 | wstats->discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l; | |
2464 | wstats->discard.code = 0L; | |
2465 | wstats->discard.misc = 0L; | |
2466 | ||
2467 | /* Enable interrupts and restore flags. */ | |
2468 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
2469 | ||
2470 | #ifdef DEBUG_IOCTL_TRACE | |
2471 | printk(KERN_DEBUG "%s: <-wavelan_get_wireless_stats()\n", | |
2472 | dev->name); | |
2473 | #endif | |
2474 | return &lp->wstats; | |
2475 | } | |
2476 | #endif /* WIRELESS_EXT */ | |
2477 | ||
2478 | /************************* PACKET RECEPTION *************************/ | |
2479 | /* | |
2480 | * This part deals with receiving the packets. | |
2481 | * The interrupt handler gets an interrupt when a packet has been | |
2482 | * successfully received and calls this part. | |
2483 | */ | |
2484 | ||
2485 | /*------------------------------------------------------------------*/ | |
2486 | /* | |
2487 | * This routine does the actual copying of data (including the Ethernet | |
2488 | * header structure) from the WaveLAN card to an sk_buff chain that | |
2489 | * will be passed up to the network interface layer. NOTE: we | |
2490 | * currently don't handle trailer protocols (neither does the rest of | |
2491 | * the network interface), so if that is needed, it will (at least in | |
2492 | * part) be added here. The contents of the receive ring buffer are | |
2493 | * copied to a message chain that is then passed to the kernel. | |
2494 | * | |
2495 | * Note: if any errors occur, the packet is "dropped on the floor". | |
2496 | * (called by wv_packet_rcv()) | |
2497 | */ | |
2498 | static inline void | |
2499 | wv_packet_read(struct net_device * dev, u16 buf_off, int sksize) | |
2500 | { | |
2501 | net_local *lp = (net_local *) dev->priv; | |
2502 | unsigned long ioaddr = dev->base_addr; | |
2503 | struct sk_buff *skb; | |
2504 | ||
2505 | #ifdef DEBUG_RX_TRACE | |
2506 | printk(KERN_DEBUG "%s: ->wv_packet_read(0x%X, %d)\n", | |
2507 | dev->name, buf_off, sksize); | |
2508 | #endif | |
2509 | ||
2510 | /* Allocate buffer for the data */ | |
2511 | if ((skb = dev_alloc_skb(sksize)) == (struct sk_buff *) NULL) { | |
2512 | #ifdef DEBUG_RX_ERROR | |
2513 | printk(KERN_INFO | |
2514 | "%s: wv_packet_read(): could not alloc_skb(%d, GFP_ATOMIC).\n", | |
2515 | dev->name, sksize); | |
2516 | #endif | |
2517 | lp->stats.rx_dropped++; | |
2518 | return; | |
2519 | } | |
2520 | ||
2521 | skb->dev = dev; | |
2522 | ||
2523 | /* Copy the packet to the buffer. */ | |
2524 | obram_read(ioaddr, buf_off, skb_put(skb, sksize), sksize); | |
2525 | skb->protocol = eth_type_trans(skb, dev); | |
2526 | ||
2527 | #ifdef DEBUG_RX_INFO | |
2528 | wv_packet_info(skb->mac.raw, sksize, dev->name, "wv_packet_read"); | |
2529 | #endif /* DEBUG_RX_INFO */ | |
2530 | ||
2531 | /* Statistics-gathering and associated stuff. | |
2532 | * It seem a bit messy with all the define, but it's really | |
2533 | * simple... */ | |
2534 | if ( | |
2535 | #ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */ | |
2536 | (lp->spy_data.spy_number > 0) || | |
2537 | #endif /* IW_WIRELESS_SPY */ | |
2538 | #ifdef HISTOGRAM | |
2539 | (lp->his_number > 0) || | |
2540 | #endif /* HISTOGRAM */ | |
2541 | 0) { | |
2542 | u8 stats[3]; /* signal level, noise level, signal quality */ | |
2543 | ||
2544 | /* Read signal level, silence level and signal quality bytes */ | |
2545 | /* Note: in the PCMCIA hardware, these are part of the frame. | |
2546 | * It seems that for the ISA hardware, it's nowhere to be | |
2547 | * found in the frame, so I'm obliged to do this (it has a | |
2548 | * side effect on /proc/net/wireless). | |
2549 | * Any ideas? | |
2550 | */ | |
2551 | mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1); | |
2552 | mmc_read(ioaddr, mmroff(0, mmr_signal_lvl), stats, 3); | |
2553 | mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0); | |
2554 | ||
2555 | #ifdef DEBUG_RX_INFO | |
2556 | printk(KERN_DEBUG | |
2557 | "%s: wv_packet_read(): Signal level %d/63, Silence level %d/63, signal quality %d/16\n", | |
2558 | dev->name, stats[0] & 0x3F, stats[1] & 0x3F, | |
2559 | stats[2] & 0x0F); | |
2560 | #endif | |
2561 | ||
2562 | /* Spying stuff */ | |
2563 | #ifdef IW_WIRELESS_SPY | |
2564 | wl_spy_gather(dev, skb->mac.raw + WAVELAN_ADDR_SIZE, | |
2565 | stats); | |
2566 | #endif /* IW_WIRELESS_SPY */ | |
2567 | #ifdef HISTOGRAM | |
2568 | wl_his_gather(dev, stats); | |
2569 | #endif /* HISTOGRAM */ | |
2570 | } | |
2571 | ||
2572 | /* | |
2573 | * Hand the packet to the network module. | |
2574 | */ | |
2575 | netif_rx(skb); | |
2576 | ||
2577 | /* Keep statistics up to date */ | |
2578 | dev->last_rx = jiffies; | |
2579 | lp->stats.rx_packets++; | |
2580 | lp->stats.rx_bytes += sksize; | |
2581 | ||
2582 | #ifdef DEBUG_RX_TRACE | |
2583 | printk(KERN_DEBUG "%s: <-wv_packet_read()\n", dev->name); | |
2584 | #endif | |
2585 | } | |
2586 | ||
2587 | /*------------------------------------------------------------------*/ | |
2588 | /* | |
2589 | * Transfer as many packets as we can | |
2590 | * from the device RAM. | |
2591 | * (called in wavelan_interrupt()). | |
2592 | * Note : the spinlock is already grabbed for us. | |
2593 | */ | |
2594 | static inline void wv_receive(struct net_device * dev) | |
2595 | { | |
2596 | unsigned long ioaddr = dev->base_addr; | |
2597 | net_local *lp = (net_local *) dev->priv; | |
2598 | fd_t fd; | |
2599 | rbd_t rbd; | |
2600 | int nreaped = 0; | |
2601 | ||
2602 | #ifdef DEBUG_RX_TRACE | |
2603 | printk(KERN_DEBUG "%s: ->wv_receive()\n", dev->name); | |
2604 | #endif | |
2605 | ||
2606 | /* Loop on each received packet. */ | |
2607 | for (;;) { | |
2608 | obram_read(ioaddr, lp->rx_head, (unsigned char *) &fd, | |
2609 | sizeof(fd)); | |
2610 | ||
2611 | /* Note about the status : | |
2612 | * It start up to be 0 (the value we set). Then, when the RU | |
2613 | * grab the buffer to prepare for reception, it sets the | |
2614 | * FD_STATUS_B flag. When the RU has finished receiving the | |
2615 | * frame, it clears FD_STATUS_B, set FD_STATUS_C to indicate | |
2616 | * completion and set the other flags to indicate the eventual | |
2617 | * errors. FD_STATUS_OK indicates that the reception was OK. | |
2618 | */ | |
2619 | ||
2620 | /* If the current frame is not complete, we have reached the end. */ | |
2621 | if ((fd.fd_status & FD_STATUS_C) != FD_STATUS_C) | |
2622 | break; /* This is how we exit the loop. */ | |
2623 | ||
2624 | nreaped++; | |
2625 | ||
2626 | /* Check whether frame was correctly received. */ | |
2627 | if ((fd.fd_status & FD_STATUS_OK) == FD_STATUS_OK) { | |
2628 | /* Does the frame contain a pointer to the data? Let's check. */ | |
2629 | if (fd.fd_rbd_offset != I82586NULL) { | |
2630 | /* Read the receive buffer descriptor */ | |
2631 | obram_read(ioaddr, fd.fd_rbd_offset, | |
2632 | (unsigned char *) &rbd, | |
2633 | sizeof(rbd)); | |
2634 | ||
2635 | #ifdef DEBUG_RX_ERROR | |
2636 | if ((rbd.rbd_status & RBD_STATUS_EOF) != | |
2637 | RBD_STATUS_EOF) printk(KERN_INFO | |
2638 | "%s: wv_receive(): missing EOF flag.\n", | |
2639 | dev->name); | |
2640 | ||
2641 | if ((rbd.rbd_status & RBD_STATUS_F) != | |
2642 | RBD_STATUS_F) printk(KERN_INFO | |
2643 | "%s: wv_receive(): missing F flag.\n", | |
2644 | dev->name); | |
2645 | #endif /* DEBUG_RX_ERROR */ | |
2646 | ||
2647 | /* Read the packet and transmit to Linux */ | |
2648 | wv_packet_read(dev, rbd.rbd_bufl, | |
2649 | rbd. | |
2650 | rbd_status & | |
2651 | RBD_STATUS_ACNT); | |
2652 | } | |
2653 | #ifdef DEBUG_RX_ERROR | |
2654 | else /* if frame has no data */ | |
2655 | printk(KERN_INFO | |
2656 | "%s: wv_receive(): frame has no data.\n", | |
2657 | dev->name); | |
2658 | #endif | |
2659 | } else { /* If reception was no successful */ | |
2660 | ||
2661 | lp->stats.rx_errors++; | |
2662 | ||
2663 | #ifdef DEBUG_RX_INFO | |
2664 | printk(KERN_DEBUG | |
2665 | "%s: wv_receive(): frame not received successfully (%X).\n", | |
2666 | dev->name, fd.fd_status); | |
2667 | #endif | |
2668 | ||
2669 | #ifdef DEBUG_RX_ERROR | |
2670 | if ((fd.fd_status & FD_STATUS_S6) != 0) | |
2671 | printk(KERN_INFO | |
2672 | "%s: wv_receive(): no EOF flag.\n", | |
2673 | dev->name); | |
2674 | #endif | |
2675 | ||
2676 | if ((fd.fd_status & FD_STATUS_S7) != 0) { | |
2677 | lp->stats.rx_length_errors++; | |
2678 | #ifdef DEBUG_RX_FAIL | |
2679 | printk(KERN_DEBUG | |
2680 | "%s: wv_receive(): frame too short.\n", | |
2681 | dev->name); | |
2682 | #endif | |
2683 | } | |
2684 | ||
2685 | if ((fd.fd_status & FD_STATUS_S8) != 0) { | |
2686 | lp->stats.rx_over_errors++; | |
2687 | #ifdef DEBUG_RX_FAIL | |
2688 | printk(KERN_DEBUG | |
2689 | "%s: wv_receive(): rx DMA overrun.\n", | |
2690 | dev->name); | |
2691 | #endif | |
2692 | } | |
2693 | ||
2694 | if ((fd.fd_status & FD_STATUS_S9) != 0) { | |
2695 | lp->stats.rx_fifo_errors++; | |
2696 | #ifdef DEBUG_RX_FAIL | |
2697 | printk(KERN_DEBUG | |
2698 | "%s: wv_receive(): ran out of resources.\n", | |
2699 | dev->name); | |
2700 | #endif | |
2701 | } | |
2702 | ||
2703 | if ((fd.fd_status & FD_STATUS_S10) != 0) { | |
2704 | lp->stats.rx_frame_errors++; | |
2705 | #ifdef DEBUG_RX_FAIL | |
2706 | printk(KERN_DEBUG | |
2707 | "%s: wv_receive(): alignment error.\n", | |
2708 | dev->name); | |
2709 | #endif | |
2710 | } | |
2711 | ||
2712 | if ((fd.fd_status & FD_STATUS_S11) != 0) { | |
2713 | lp->stats.rx_crc_errors++; | |
2714 | #ifdef DEBUG_RX_FAIL | |
2715 | printk(KERN_DEBUG | |
2716 | "%s: wv_receive(): CRC error.\n", | |
2717 | dev->name); | |
2718 | #endif | |
2719 | } | |
2720 | } | |
2721 | ||
2722 | fd.fd_status = 0; | |
2723 | obram_write(ioaddr, fdoff(lp->rx_head, fd_status), | |
2724 | (unsigned char *) &fd.fd_status, | |
2725 | sizeof(fd.fd_status)); | |
2726 | ||
2727 | fd.fd_command = FD_COMMAND_EL; | |
2728 | obram_write(ioaddr, fdoff(lp->rx_head, fd_command), | |
2729 | (unsigned char *) &fd.fd_command, | |
2730 | sizeof(fd.fd_command)); | |
2731 | ||
2732 | fd.fd_command = 0; | |
2733 | obram_write(ioaddr, fdoff(lp->rx_last, fd_command), | |
2734 | (unsigned char *) &fd.fd_command, | |
2735 | sizeof(fd.fd_command)); | |
2736 | ||
2737 | lp->rx_last = lp->rx_head; | |
2738 | lp->rx_head = fd.fd_link_offset; | |
2739 | } /* for(;;) -> loop on all frames */ | |
2740 | ||
2741 | #ifdef DEBUG_RX_INFO | |
2742 | if (nreaped > 1) | |
2743 | printk(KERN_DEBUG "%s: wv_receive(): reaped %d\n", | |
2744 | dev->name, nreaped); | |
2745 | #endif | |
2746 | #ifdef DEBUG_RX_TRACE | |
2747 | printk(KERN_DEBUG "%s: <-wv_receive()\n", dev->name); | |
2748 | #endif | |
2749 | } | |
2750 | ||
2751 | /*********************** PACKET TRANSMISSION ***********************/ | |
2752 | /* | |
2753 | * This part deals with sending packets through the WaveLAN. | |
2754 | * | |
2755 | */ | |
2756 | ||
2757 | /*------------------------------------------------------------------*/ | |
2758 | /* | |
2759 | * This routine fills in the appropriate registers and memory | |
2760 | * locations on the WaveLAN card and starts the card off on | |
2761 | * the transmit. | |
2762 | * | |
2763 | * The principle: | |
2764 | * Each block contains a transmit command, a NOP command, | |
2765 | * a transmit block descriptor and a buffer. | |
2766 | * The CU read the transmit block which point to the tbd, | |
2767 | * read the tbd and the content of the buffer. | |
2768 | * When it has finish with it, it goes to the next command | |
2769 | * which in our case is the NOP. The NOP points on itself, | |
2770 | * so the CU stop here. | |
2771 | * When we add the next block, we modify the previous nop | |
2772 | * to make it point on the new tx command. | |
2773 | * Simple, isn't it ? | |
2774 | * | |
2775 | * (called in wavelan_packet_xmit()) | |
2776 | */ | |
2777 | static inline int wv_packet_write(struct net_device * dev, void *buf, short length) | |
2778 | { | |
2779 | net_local *lp = (net_local *) dev->priv; | |
2780 | unsigned long ioaddr = dev->base_addr; | |
2781 | unsigned short txblock; | |
2782 | unsigned short txpred; | |
2783 | unsigned short tx_addr; | |
2784 | unsigned short nop_addr; | |
2785 | unsigned short tbd_addr; | |
2786 | unsigned short buf_addr; | |
2787 | ac_tx_t tx; | |
2788 | ac_nop_t nop; | |
2789 | tbd_t tbd; | |
2790 | int clen = length; | |
2791 | unsigned long flags; | |
2792 | ||
2793 | #ifdef DEBUG_TX_TRACE | |
2794 | printk(KERN_DEBUG "%s: ->wv_packet_write(%d)\n", dev->name, | |
2795 | length); | |
2796 | #endif | |
2797 | ||
2798 | spin_lock_irqsave(&lp->spinlock, flags); | |
2799 | ||
2800 | /* Check nothing bad has happened */ | |
2801 | if (lp->tx_n_in_use == (NTXBLOCKS - 1)) { | |
2802 | #ifdef DEBUG_TX_ERROR | |
2803 | printk(KERN_INFO "%s: wv_packet_write(): Tx queue full.\n", | |
2804 | dev->name); | |
2805 | #endif | |
2806 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
2807 | return 1; | |
2808 | } | |
2809 | ||
2810 | /* Calculate addresses of next block and previous block. */ | |
2811 | txblock = lp->tx_first_free; | |
2812 | txpred = txblock - TXBLOCKZ; | |
2813 | if (txpred < OFFSET_CU) | |
2814 | txpred += NTXBLOCKS * TXBLOCKZ; | |
2815 | lp->tx_first_free += TXBLOCKZ; | |
2816 | if (lp->tx_first_free >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ) | |
2817 | lp->tx_first_free -= NTXBLOCKS * TXBLOCKZ; | |
2818 | ||
2819 | lp->tx_n_in_use++; | |
2820 | ||
2821 | /* Calculate addresses of the different parts of the block. */ | |
2822 | tx_addr = txblock; | |
2823 | nop_addr = tx_addr + sizeof(tx); | |
2824 | tbd_addr = nop_addr + sizeof(nop); | |
2825 | buf_addr = tbd_addr + sizeof(tbd); | |
2826 | ||
2827 | /* | |
2828 | * Transmit command | |
2829 | */ | |
2830 | tx.tx_h.ac_status = 0; | |
2831 | obram_write(ioaddr, toff(ac_tx_t, tx_addr, tx_h.ac_status), | |
2832 | (unsigned char *) &tx.tx_h.ac_status, | |
2833 | sizeof(tx.tx_h.ac_status)); | |
2834 | ||
2835 | /* | |
2836 | * NOP command | |
2837 | */ | |
2838 | nop.nop_h.ac_status = 0; | |
2839 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status), | |
2840 | (unsigned char *) &nop.nop_h.ac_status, | |
2841 | sizeof(nop.nop_h.ac_status)); | |
2842 | nop.nop_h.ac_link = nop_addr; | |
2843 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link), | |
2844 | (unsigned char *) &nop.nop_h.ac_link, | |
2845 | sizeof(nop.nop_h.ac_link)); | |
2846 | ||
2847 | /* | |
2848 | * Transmit buffer descriptor | |
2849 | */ | |
2850 | tbd.tbd_status = TBD_STATUS_EOF | (TBD_STATUS_ACNT & clen); | |
2851 | tbd.tbd_next_bd_offset = I82586NULL; | |
2852 | tbd.tbd_bufl = buf_addr; | |
2853 | tbd.tbd_bufh = 0; | |
2854 | obram_write(ioaddr, tbd_addr, (unsigned char *) &tbd, sizeof(tbd)); | |
2855 | ||
2856 | /* | |
2857 | * Data | |
2858 | */ | |
2859 | obram_write(ioaddr, buf_addr, buf, length); | |
2860 | ||
2861 | /* | |
2862 | * Overwrite the predecessor NOP link | |
2863 | * so that it points to this txblock. | |
2864 | */ | |
2865 | nop_addr = txpred + sizeof(tx); | |
2866 | nop.nop_h.ac_status = 0; | |
2867 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status), | |
2868 | (unsigned char *) &nop.nop_h.ac_status, | |
2869 | sizeof(nop.nop_h.ac_status)); | |
2870 | nop.nop_h.ac_link = txblock; | |
2871 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link), | |
2872 | (unsigned char *) &nop.nop_h.ac_link, | |
2873 | sizeof(nop.nop_h.ac_link)); | |
2874 | ||
2875 | /* Make sure the watchdog will keep quiet for a while */ | |
2876 | dev->trans_start = jiffies; | |
2877 | ||
2878 | /* Keep stats up to date. */ | |
2879 | lp->stats.tx_bytes += length; | |
2880 | ||
2881 | if (lp->tx_first_in_use == I82586NULL) | |
2882 | lp->tx_first_in_use = txblock; | |
2883 | ||
2884 | if (lp->tx_n_in_use < NTXBLOCKS - 1) | |
2885 | netif_wake_queue(dev); | |
2886 | ||
2887 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
2888 | ||
2889 | #ifdef DEBUG_TX_INFO | |
2890 | wv_packet_info((u8 *) buf, length, dev->name, | |
2891 | "wv_packet_write"); | |
2892 | #endif /* DEBUG_TX_INFO */ | |
2893 | ||
2894 | #ifdef DEBUG_TX_TRACE | |
2895 | printk(KERN_DEBUG "%s: <-wv_packet_write()\n", dev->name); | |
2896 | #endif | |
2897 | ||
2898 | return 0; | |
2899 | } | |
2900 | ||
2901 | /*------------------------------------------------------------------*/ | |
2902 | /* | |
2903 | * This routine is called when we want to send a packet (NET3 callback) | |
2904 | * In this routine, we check if the harware is ready to accept | |
2905 | * the packet. We also prevent reentrance. Then we call the function | |
2906 | * to send the packet. | |
2907 | */ | |
2908 | static int wavelan_packet_xmit(struct sk_buff *skb, struct net_device * dev) | |
2909 | { | |
2910 | net_local *lp = (net_local *) dev->priv; | |
2911 | unsigned long flags; | |
2912 | ||
2913 | #ifdef DEBUG_TX_TRACE | |
2914 | printk(KERN_DEBUG "%s: ->wavelan_packet_xmit(0x%X)\n", dev->name, | |
2915 | (unsigned) skb); | |
2916 | #endif | |
2917 | ||
2918 | /* | |
2919 | * Block a timer-based transmit from overlapping. | |
2920 | * In other words, prevent reentering this routine. | |
2921 | */ | |
2922 | netif_stop_queue(dev); | |
2923 | ||
2924 | /* If somebody has asked to reconfigure the controller, | |
2925 | * we can do it now. | |
2926 | */ | |
2927 | if (lp->reconfig_82586) { | |
2928 | spin_lock_irqsave(&lp->spinlock, flags); | |
2929 | wv_82586_config(dev); | |
2930 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
2931 | /* Check that we can continue */ | |
2932 | if (lp->tx_n_in_use == (NTXBLOCKS - 1)) | |
2933 | return 1; | |
2934 | } | |
2935 | #ifdef DEBUG_TX_ERROR | |
2936 | if (skb->next) | |
2937 | printk(KERN_INFO "skb has next\n"); | |
2938 | #endif | |
2939 | ||
2940 | /* Do we need some padding? */ | |
2941 | /* Note : on wireless the propagation time is in the order of 1us, | |
2942 | * and we don't have the Ethernet specific requirement of beeing | |
2943 | * able to detect collisions, therefore in theory we don't really | |
2944 | * need to pad. Jean II */ | |
2945 | if (skb->len < ETH_ZLEN) { | |
2946 | skb = skb_padto(skb, ETH_ZLEN); | |
2947 | if (skb == NULL) | |
2948 | return 0; | |
2949 | } | |
2950 | ||
2951 | /* Write packet on the card */ | |
2952 | if(wv_packet_write(dev, skb->data, skb->len)) | |
2953 | return 1; /* We failed */ | |
2954 | ||
2955 | dev_kfree_skb(skb); | |
2956 | ||
2957 | #ifdef DEBUG_TX_TRACE | |
2958 | printk(KERN_DEBUG "%s: <-wavelan_packet_xmit()\n", dev->name); | |
2959 | #endif | |
2960 | return 0; | |
2961 | } | |
2962 | ||
2963 | /*********************** HARDWARE CONFIGURATION ***********************/ | |
2964 | /* | |
2965 | * This part does the real job of starting and configuring the hardware. | |
2966 | */ | |
2967 | ||
2968 | /*--------------------------------------------------------------------*/ | |
2969 | /* | |
2970 | * Routine to initialize the Modem Management Controller. | |
2971 | * (called by wv_hw_reset()) | |
2972 | */ | |
2973 | static inline int wv_mmc_init(struct net_device * dev) | |
2974 | { | |
2975 | unsigned long ioaddr = dev->base_addr; | |
2976 | net_local *lp = (net_local *) dev->priv; | |
2977 | psa_t psa; | |
2978 | mmw_t m; | |
2979 | int configured; | |
2980 | ||
2981 | #ifdef DEBUG_CONFIG_TRACE | |
2982 | printk(KERN_DEBUG "%s: ->wv_mmc_init()\n", dev->name); | |
2983 | #endif | |
2984 | ||
2985 | /* Read the parameter storage area. */ | |
2986 | psa_read(ioaddr, lp->hacr, 0, (unsigned char *) &psa, sizeof(psa)); | |
2987 | ||
2988 | #ifdef USE_PSA_CONFIG | |
2989 | configured = psa.psa_conf_status & 1; | |
2990 | #else | |
2991 | configured = 0; | |
2992 | #endif | |
2993 | ||
2994 | /* Is the PSA is not configured */ | |
2995 | if (!configured) { | |
2996 | /* User will be able to configure NWID later (with iwconfig). */ | |
2997 | psa.psa_nwid[0] = 0; | |
2998 | psa.psa_nwid[1] = 0; | |
2999 | ||
3000 | /* no NWID checking since NWID is not set */ | |
3001 | psa.psa_nwid_select = 0; | |
3002 | ||
3003 | /* Disable encryption */ | |
3004 | psa.psa_encryption_select = 0; | |
3005 | ||
3006 | /* Set to standard values: | |
3007 | * 0x04 for AT, | |
3008 | * 0x01 for MCA, | |
3009 | * 0x04 for PCMCIA and 2.00 card (AT&T 407-024689/E document) | |
3010 | */ | |
3011 | if (psa.psa_comp_number & 1) | |
3012 | psa.psa_thr_pre_set = 0x01; | |
3013 | else | |
3014 | psa.psa_thr_pre_set = 0x04; | |
3015 | psa.psa_quality_thr = 0x03; | |
3016 | ||
3017 | /* It is configured */ | |
3018 | psa.psa_conf_status |= 1; | |
3019 | ||
3020 | #ifdef USE_PSA_CONFIG | |
3021 | /* Write the psa. */ | |
3022 | psa_write(ioaddr, lp->hacr, | |
3023 | (char *) psa.psa_nwid - (char *) &psa, | |
3024 | (unsigned char *) psa.psa_nwid, 4); | |
3025 | psa_write(ioaddr, lp->hacr, | |
3026 | (char *) &psa.psa_thr_pre_set - (char *) &psa, | |
3027 | (unsigned char *) &psa.psa_thr_pre_set, 1); | |
3028 | psa_write(ioaddr, lp->hacr, | |
3029 | (char *) &psa.psa_quality_thr - (char *) &psa, | |
3030 | (unsigned char *) &psa.psa_quality_thr, 1); | |
3031 | psa_write(ioaddr, lp->hacr, | |
3032 | (char *) &psa.psa_conf_status - (char *) &psa, | |
3033 | (unsigned char *) &psa.psa_conf_status, 1); | |
3034 | /* update the Wavelan checksum */ | |
3035 | update_psa_checksum(dev, ioaddr, lp->hacr); | |
3036 | #endif | |
3037 | } | |
3038 | ||
3039 | /* Zero the mmc structure. */ | |
3040 | memset(&m, 0x00, sizeof(m)); | |
3041 | ||
3042 | /* Copy PSA info to the mmc. */ | |
3043 | m.mmw_netw_id_l = psa.psa_nwid[1]; | |
3044 | m.mmw_netw_id_h = psa.psa_nwid[0]; | |
3045 | ||
3046 | if (psa.psa_nwid_select & 1) | |
3047 | m.mmw_loopt_sel = 0x00; | |
3048 | else | |
3049 | m.mmw_loopt_sel = MMW_LOOPT_SEL_DIS_NWID; | |
3050 | ||
3051 | memcpy(&m.mmw_encr_key, &psa.psa_encryption_key, | |
3052 | sizeof(m.mmw_encr_key)); | |
3053 | ||
3054 | if (psa.psa_encryption_select) | |
3055 | m.mmw_encr_enable = | |
3056 | MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE; | |
3057 | else | |
3058 | m.mmw_encr_enable = 0; | |
3059 | ||
3060 | m.mmw_thr_pre_set = psa.psa_thr_pre_set & 0x3F; | |
3061 | m.mmw_quality_thr = psa.psa_quality_thr & 0x0F; | |
3062 | ||
3063 | /* | |
3064 | * Set default modem control parameters. | |
3065 | * See NCR document 407-0024326 Rev. A. | |
3066 | */ | |
3067 | m.mmw_jabber_enable = 0x01; | |
3068 | m.mmw_freeze = 0; | |
3069 | m.mmw_anten_sel = MMW_ANTEN_SEL_ALG_EN; | |
3070 | m.mmw_ifs = 0x20; | |
3071 | m.mmw_mod_delay = 0x04; | |
3072 | m.mmw_jam_time = 0x38; | |
3073 | ||
3074 | m.mmw_des_io_invert = 0; | |
3075 | m.mmw_decay_prm = 0; | |
3076 | m.mmw_decay_updat_prm = 0; | |
3077 | ||
3078 | /* Write all info to MMC. */ | |
3079 | mmc_write(ioaddr, 0, (u8 *) & m, sizeof(m)); | |
3080 | ||
3081 | /* The following code starts the modem of the 2.00 frequency | |
3082 | * selectable cards at power on. It's not strictly needed for the | |
3083 | * following boots. | |
3084 | * The original patch was by Joe Finney for the PCMCIA driver, but | |
3085 | * I've cleaned it up a bit and added documentation. | |
3086 | * Thanks to Loeke Brederveld from Lucent for the info. | |
3087 | */ | |
3088 | ||
3089 | /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable) | |
3090 | * Does it work for everybody, especially old cards? */ | |
3091 | /* Note: WFREQSEL verifies that it is able to read a sensible | |
3092 | * frequency from EEPROM (address 0x00) and that MMR_FEE_STATUS_ID | |
3093 | * is 0xA (Xilinx version) or 0xB (Ariadne version). | |
3094 | * My test is more crude but does work. */ | |
3095 | if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) & | |
3096 | (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) { | |
3097 | /* We must download the frequency parameters to the | |
3098 | * synthesizers (from the EEPROM - area 1) | |
3099 | * Note: as the EEPROM is automatically decremented, we set the end | |
3100 | * if the area... */ | |
3101 | m.mmw_fee_addr = 0x0F; | |
3102 | m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD; | |
3103 | mmc_write(ioaddr, (char *) &m.mmw_fee_ctrl - (char *) &m, | |
3104 | (unsigned char *) &m.mmw_fee_ctrl, 2); | |
3105 | ||
3106 | /* Wait until the download is finished. */ | |
3107 | fee_wait(ioaddr, 100, 100); | |
3108 | ||
3109 | #ifdef DEBUG_CONFIG_INFO | |
3110 | /* The frequency was in the last word downloaded. */ | |
3111 | mmc_read(ioaddr, (char *) &m.mmw_fee_data_l - (char *) &m, | |
3112 | (unsigned char *) &m.mmw_fee_data_l, 2); | |
3113 | ||
3114 | /* Print some info for the user. */ | |
3115 | printk(KERN_DEBUG | |
3116 | "%s: WaveLAN 2.00 recognised (frequency select). Current frequency = %ld\n", | |
3117 | dev->name, | |
3118 | ((m. | |
3119 | mmw_fee_data_h << 4) | (m.mmw_fee_data_l >> 4)) * | |
3120 | 5 / 2 + 24000L); | |
3121 | #endif | |
3122 | ||
3123 | /* We must now download the power adjust value (gain) to | |
3124 | * the synthesizers (from the EEPROM - area 7 - DAC). */ | |
3125 | m.mmw_fee_addr = 0x61; | |
3126 | m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD; | |
3127 | mmc_write(ioaddr, (char *) &m.mmw_fee_ctrl - (char *) &m, | |
3128 | (unsigned char *) &m.mmw_fee_ctrl, 2); | |
3129 | ||
3130 | /* Wait until the download is finished. */ | |
3131 | } | |
3132 | /* if 2.00 card */ | |
3133 | #ifdef DEBUG_CONFIG_TRACE | |
3134 | printk(KERN_DEBUG "%s: <-wv_mmc_init()\n", dev->name); | |
3135 | #endif | |
3136 | return 0; | |
3137 | } | |
3138 | ||
3139 | /*------------------------------------------------------------------*/ | |
3140 | /* | |
3141 | * Construct the fd and rbd structures. | |
3142 | * Start the receive unit. | |
3143 | * (called by wv_hw_reset()) | |
3144 | */ | |
3145 | static inline int wv_ru_start(struct net_device * dev) | |
3146 | { | |
3147 | net_local *lp = (net_local *) dev->priv; | |
3148 | unsigned long ioaddr = dev->base_addr; | |
3149 | u16 scb_cs; | |
3150 | fd_t fd; | |
3151 | rbd_t rbd; | |
3152 | u16 rx; | |
3153 | u16 rx_next; | |
3154 | int i; | |
3155 | ||
3156 | #ifdef DEBUG_CONFIG_TRACE | |
3157 | printk(KERN_DEBUG "%s: ->wv_ru_start()\n", dev->name); | |
3158 | #endif | |
3159 | ||
3160 | obram_read(ioaddr, scboff(OFFSET_SCB, scb_status), | |
3161 | (unsigned char *) &scb_cs, sizeof(scb_cs)); | |
3162 | if ((scb_cs & SCB_ST_RUS) == SCB_ST_RUS_RDY) | |
3163 | return 0; | |
3164 | ||
3165 | lp->rx_head = OFFSET_RU; | |
3166 | ||
3167 | for (i = 0, rx = lp->rx_head; i < NRXBLOCKS; i++, rx = rx_next) { | |
3168 | rx_next = | |
3169 | (i == NRXBLOCKS - 1) ? lp->rx_head : rx + RXBLOCKZ; | |
3170 | ||
3171 | fd.fd_status = 0; | |
3172 | fd.fd_command = (i == NRXBLOCKS - 1) ? FD_COMMAND_EL : 0; | |
3173 | fd.fd_link_offset = rx_next; | |
3174 | fd.fd_rbd_offset = rx + sizeof(fd); | |
3175 | obram_write(ioaddr, rx, (unsigned char *) &fd, sizeof(fd)); | |
3176 | ||
3177 | rbd.rbd_status = 0; | |
3178 | rbd.rbd_next_rbd_offset = I82586NULL; | |
3179 | rbd.rbd_bufl = rx + sizeof(fd) + sizeof(rbd); | |
3180 | rbd.rbd_bufh = 0; | |
3181 | rbd.rbd_el_size = RBD_EL | (RBD_SIZE & MAXDATAZ); | |
3182 | obram_write(ioaddr, rx + sizeof(fd), | |
3183 | (unsigned char *) &rbd, sizeof(rbd)); | |
3184 | ||
3185 | lp->rx_last = rx; | |
3186 | } | |
3187 | ||
3188 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_rfa_offset), | |
3189 | (unsigned char *) &lp->rx_head, sizeof(lp->rx_head)); | |
3190 | ||
3191 | scb_cs = SCB_CMD_RUC_GO; | |
3192 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_command), | |
3193 | (unsigned char *) &scb_cs, sizeof(scb_cs)); | |
3194 | ||
3195 | set_chan_attn(ioaddr, lp->hacr); | |
3196 | ||
3197 | for (i = 1000; i > 0; i--) { | |
3198 | obram_read(ioaddr, scboff(OFFSET_SCB, scb_command), | |
3199 | (unsigned char *) &scb_cs, sizeof(scb_cs)); | |
3200 | if (scb_cs == 0) | |
3201 | break; | |
3202 | ||
3203 | udelay(10); | |
3204 | } | |
3205 | ||
3206 | if (i <= 0) { | |
3207 | #ifdef DEBUG_CONFIG_ERROR | |
3208 | printk(KERN_INFO | |
3209 | "%s: wavelan_ru_start(): board not accepting command.\n", | |
3210 | dev->name); | |
3211 | #endif | |
3212 | return -1; | |
3213 | } | |
3214 | #ifdef DEBUG_CONFIG_TRACE | |
3215 | printk(KERN_DEBUG "%s: <-wv_ru_start()\n", dev->name); | |
3216 | #endif | |
3217 | return 0; | |
3218 | } | |
3219 | ||
3220 | /*------------------------------------------------------------------*/ | |
3221 | /* | |
3222 | * Initialise the transmit blocks. | |
3223 | * Start the command unit executing the NOP | |
3224 | * self-loop of the first transmit block. | |
3225 | * | |
3226 | * Here we create the list of send buffers used to transmit packets | |
3227 | * between the PC and the command unit. For each buffer, we create a | |
3228 | * buffer descriptor (pointing on the buffer), a transmit command | |
3229 | * (pointing to the buffer descriptor) and a NOP command. | |
3230 | * The transmit command is linked to the NOP, and the NOP to itself. | |
3231 | * When we will have finished executing the transmit command, we will | |
3232 | * then loop on the NOP. By releasing the NOP link to a new command, | |
3233 | * we may send another buffer. | |
3234 | * | |
3235 | * (called by wv_hw_reset()) | |
3236 | */ | |
3237 | static inline int wv_cu_start(struct net_device * dev) | |
3238 | { | |
3239 | net_local *lp = (net_local *) dev->priv; | |
3240 | unsigned long ioaddr = dev->base_addr; | |
3241 | int i; | |
3242 | u16 txblock; | |
3243 | u16 first_nop; | |
3244 | u16 scb_cs; | |
3245 | ||
3246 | #ifdef DEBUG_CONFIG_TRACE | |
3247 | printk(KERN_DEBUG "%s: ->wv_cu_start()\n", dev->name); | |
3248 | #endif | |
3249 | ||
3250 | lp->tx_first_free = OFFSET_CU; | |
3251 | lp->tx_first_in_use = I82586NULL; | |
3252 | ||
3253 | for (i = 0, txblock = OFFSET_CU; | |
3254 | i < NTXBLOCKS; i++, txblock += TXBLOCKZ) { | |
3255 | ac_tx_t tx; | |
3256 | ac_nop_t nop; | |
3257 | tbd_t tbd; | |
3258 | unsigned short tx_addr; | |
3259 | unsigned short nop_addr; | |
3260 | unsigned short tbd_addr; | |
3261 | unsigned short buf_addr; | |
3262 | ||
3263 | tx_addr = txblock; | |
3264 | nop_addr = tx_addr + sizeof(tx); | |
3265 | tbd_addr = nop_addr + sizeof(nop); | |
3266 | buf_addr = tbd_addr + sizeof(tbd); | |
3267 | ||
3268 | tx.tx_h.ac_status = 0; | |
3269 | tx.tx_h.ac_command = acmd_transmit | AC_CFLD_I; | |
3270 | tx.tx_h.ac_link = nop_addr; | |
3271 | tx.tx_tbd_offset = tbd_addr; | |
3272 | obram_write(ioaddr, tx_addr, (unsigned char *) &tx, | |
3273 | sizeof(tx)); | |
3274 | ||
3275 | nop.nop_h.ac_status = 0; | |
3276 | nop.nop_h.ac_command = acmd_nop; | |
3277 | nop.nop_h.ac_link = nop_addr; | |
3278 | obram_write(ioaddr, nop_addr, (unsigned char *) &nop, | |
3279 | sizeof(nop)); | |
3280 | ||
3281 | tbd.tbd_status = TBD_STATUS_EOF; | |
3282 | tbd.tbd_next_bd_offset = I82586NULL; | |
3283 | tbd.tbd_bufl = buf_addr; | |
3284 | tbd.tbd_bufh = 0; | |
3285 | obram_write(ioaddr, tbd_addr, (unsigned char *) &tbd, | |
3286 | sizeof(tbd)); | |
3287 | } | |
3288 | ||
3289 | first_nop = | |
3290 | OFFSET_CU + (NTXBLOCKS - 1) * TXBLOCKZ + sizeof(ac_tx_t); | |
3291 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_cbl_offset), | |
3292 | (unsigned char *) &first_nop, sizeof(first_nop)); | |
3293 | ||
3294 | scb_cs = SCB_CMD_CUC_GO; | |
3295 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_command), | |
3296 | (unsigned char *) &scb_cs, sizeof(scb_cs)); | |
3297 | ||
3298 | set_chan_attn(ioaddr, lp->hacr); | |
3299 | ||
3300 | for (i = 1000; i > 0; i--) { | |
3301 | obram_read(ioaddr, scboff(OFFSET_SCB, scb_command), | |
3302 | (unsigned char *) &scb_cs, sizeof(scb_cs)); | |
3303 | if (scb_cs == 0) | |
3304 | break; | |
3305 | ||
3306 | udelay(10); | |
3307 | } | |
3308 | ||
3309 | if (i <= 0) { | |
3310 | #ifdef DEBUG_CONFIG_ERROR | |
3311 | printk(KERN_INFO | |
3312 | "%s: wavelan_cu_start(): board not accepting command.\n", | |
3313 | dev->name); | |
3314 | #endif | |
3315 | return -1; | |
3316 | } | |
3317 | ||
3318 | lp->tx_n_in_use = 0; | |
3319 | netif_start_queue(dev); | |
3320 | #ifdef DEBUG_CONFIG_TRACE | |
3321 | printk(KERN_DEBUG "%s: <-wv_cu_start()\n", dev->name); | |
3322 | #endif | |
3323 | return 0; | |
3324 | } | |
3325 | ||
3326 | /*------------------------------------------------------------------*/ | |
3327 | /* | |
3328 | * This routine does a standard configuration of the WaveLAN | |
3329 | * controller (i82586). | |
3330 | * | |
3331 | * It initialises the scp, iscp and scb structure | |
3332 | * The first two are just pointers to the next. | |
3333 | * The last one is used for basic configuration and for basic | |
3334 | * communication (interrupt status). | |
3335 | * | |
3336 | * (called by wv_hw_reset()) | |
3337 | */ | |
3338 | static inline int wv_82586_start(struct net_device * dev) | |
3339 | { | |
3340 | net_local *lp = (net_local *) dev->priv; | |
3341 | unsigned long ioaddr = dev->base_addr; | |
3342 | scp_t scp; /* system configuration pointer */ | |
3343 | iscp_t iscp; /* intermediate scp */ | |
3344 | scb_t scb; /* system control block */ | |
3345 | ach_t cb; /* Action command header */ | |
3346 | u8 zeroes[512]; | |
3347 | int i; | |
3348 | ||
3349 | #ifdef DEBUG_CONFIG_TRACE | |
3350 | printk(KERN_DEBUG "%s: ->wv_82586_start()\n", dev->name); | |
3351 | #endif | |
3352 | ||
3353 | /* | |
3354 | * Clear the onboard RAM. | |
3355 | */ | |
3356 | memset(&zeroes[0], 0x00, sizeof(zeroes)); | |
3357 | for (i = 0; i < I82586_MEMZ; i += sizeof(zeroes)) | |
3358 | obram_write(ioaddr, i, &zeroes[0], sizeof(zeroes)); | |
3359 | ||
3360 | /* | |
3361 | * Construct the command unit structures: | |
3362 | * scp, iscp, scb, cb. | |
3363 | */ | |
3364 | memset(&scp, 0x00, sizeof(scp)); | |
3365 | scp.scp_sysbus = SCP_SY_16BBUS; | |
3366 | scp.scp_iscpl = OFFSET_ISCP; | |
3367 | obram_write(ioaddr, OFFSET_SCP, (unsigned char *) &scp, | |
3368 | sizeof(scp)); | |
3369 | ||
3370 | memset(&iscp, 0x00, sizeof(iscp)); | |
3371 | iscp.iscp_busy = 1; | |
3372 | iscp.iscp_offset = OFFSET_SCB; | |
3373 | obram_write(ioaddr, OFFSET_ISCP, (unsigned char *) &iscp, | |
3374 | sizeof(iscp)); | |
3375 | ||
3376 | /* Our first command is to reset the i82586. */ | |
3377 | memset(&scb, 0x00, sizeof(scb)); | |
3378 | scb.scb_command = SCB_CMD_RESET; | |
3379 | scb.scb_cbl_offset = OFFSET_CU; | |
3380 | scb.scb_rfa_offset = OFFSET_RU; | |
3381 | obram_write(ioaddr, OFFSET_SCB, (unsigned char *) &scb, | |
3382 | sizeof(scb)); | |
3383 | ||
3384 | set_chan_attn(ioaddr, lp->hacr); | |
3385 | ||
3386 | /* Wait for command to finish. */ | |
3387 | for (i = 1000; i > 0; i--) { | |
3388 | obram_read(ioaddr, OFFSET_ISCP, (unsigned char *) &iscp, | |
3389 | sizeof(iscp)); | |
3390 | ||
3391 | if (iscp.iscp_busy == (unsigned short) 0) | |
3392 | break; | |
3393 | ||
3394 | udelay(10); | |
3395 | } | |
3396 | ||
3397 | if (i <= 0) { | |
3398 | #ifdef DEBUG_CONFIG_ERROR | |
3399 | printk(KERN_INFO | |
3400 | "%s: wv_82586_start(): iscp_busy timeout.\n", | |
3401 | dev->name); | |
3402 | #endif | |
3403 | return -1; | |
3404 | } | |
3405 | ||
3406 | /* Check command completion. */ | |
3407 | for (i = 15; i > 0; i--) { | |
3408 | obram_read(ioaddr, OFFSET_SCB, (unsigned char *) &scb, | |
3409 | sizeof(scb)); | |
3410 | ||
3411 | if (scb.scb_status == (SCB_ST_CX | SCB_ST_CNA)) | |
3412 | break; | |
3413 | ||
3414 | udelay(10); | |
3415 | } | |
3416 | ||
3417 | if (i <= 0) { | |
3418 | #ifdef DEBUG_CONFIG_ERROR | |
3419 | printk(KERN_INFO | |
3420 | "%s: wv_82586_start(): status: expected 0x%02x, got 0x%02x.\n", | |
3421 | dev->name, SCB_ST_CX | SCB_ST_CNA, scb.scb_status); | |
3422 | #endif | |
3423 | return -1; | |
3424 | } | |
3425 | ||
3426 | wv_ack(dev); | |
3427 | ||
3428 | /* Set the action command header. */ | |
3429 | memset(&cb, 0x00, sizeof(cb)); | |
3430 | cb.ac_command = AC_CFLD_EL | (AC_CFLD_CMD & acmd_diagnose); | |
3431 | cb.ac_link = OFFSET_CU; | |
3432 | obram_write(ioaddr, OFFSET_CU, (unsigned char *) &cb, sizeof(cb)); | |
3433 | ||
3434 | if (wv_synchronous_cmd(dev, "diag()") == -1) | |
3435 | return -1; | |
3436 | ||
3437 | obram_read(ioaddr, OFFSET_CU, (unsigned char *) &cb, sizeof(cb)); | |
3438 | if (cb.ac_status & AC_SFLD_FAIL) { | |
3439 | #ifdef DEBUG_CONFIG_ERROR | |
3440 | printk(KERN_INFO | |
3441 | "%s: wv_82586_start(): i82586 Self Test failed.\n", | |
3442 | dev->name); | |
3443 | #endif | |
3444 | return -1; | |
3445 | } | |
3446 | #ifdef DEBUG_I82586_SHOW | |
3447 | wv_scb_show(ioaddr); | |
3448 | #endif | |
3449 | ||
3450 | #ifdef DEBUG_CONFIG_TRACE | |
3451 | printk(KERN_DEBUG "%s: <-wv_82586_start()\n", dev->name); | |
3452 | #endif | |
3453 | return 0; | |
3454 | } | |
3455 | ||
3456 | /*------------------------------------------------------------------*/ | |
3457 | /* | |
3458 | * This routine does a standard configuration of the WaveLAN | |
3459 | * controller (i82586). | |
3460 | * | |
3461 | * This routine is a violent hack. We use the first free transmit block | |
3462 | * to make our configuration. In the buffer area, we create the three | |
3463 | * configuration commands (linked). We make the previous NOP point to | |
3464 | * the beginning of the buffer instead of the tx command. After, we go | |
3465 | * as usual to the NOP command. | |
3466 | * Note that only the last command (mc_set) will generate an interrupt. | |
3467 | * | |
3468 | * (called by wv_hw_reset(), wv_82586_reconfig(), wavelan_packet_xmit()) | |
3469 | */ | |
3470 | static void wv_82586_config(struct net_device * dev) | |
3471 | { | |
3472 | net_local *lp = (net_local *) dev->priv; | |
3473 | unsigned long ioaddr = dev->base_addr; | |
3474 | unsigned short txblock; | |
3475 | unsigned short txpred; | |
3476 | unsigned short tx_addr; | |
3477 | unsigned short nop_addr; | |
3478 | unsigned short tbd_addr; | |
3479 | unsigned short cfg_addr; | |
3480 | unsigned short ias_addr; | |
3481 | unsigned short mcs_addr; | |
3482 | ac_tx_t tx; | |
3483 | ac_nop_t nop; | |
3484 | ac_cfg_t cfg; /* Configure action */ | |
3485 | ac_ias_t ias; /* IA-setup action */ | |
3486 | ac_mcs_t mcs; /* Multicast setup */ | |
3487 | struct dev_mc_list *dmi; | |
3488 | ||
3489 | #ifdef DEBUG_CONFIG_TRACE | |
3490 | printk(KERN_DEBUG "%s: ->wv_82586_config()\n", dev->name); | |
3491 | #endif | |
3492 | ||
3493 | /* Check nothing bad has happened */ | |
3494 | if (lp->tx_n_in_use == (NTXBLOCKS - 1)) { | |
3495 | #ifdef DEBUG_CONFIG_ERROR | |
3496 | printk(KERN_INFO "%s: wv_82586_config(): Tx queue full.\n", | |
3497 | dev->name); | |
3498 | #endif | |
3499 | return; | |
3500 | } | |
3501 | ||
3502 | /* Calculate addresses of next block and previous block. */ | |
3503 | txblock = lp->tx_first_free; | |
3504 | txpred = txblock - TXBLOCKZ; | |
3505 | if (txpred < OFFSET_CU) | |
3506 | txpred += NTXBLOCKS * TXBLOCKZ; | |
3507 | lp->tx_first_free += TXBLOCKZ; | |
3508 | if (lp->tx_first_free >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ) | |
3509 | lp->tx_first_free -= NTXBLOCKS * TXBLOCKZ; | |
3510 | ||
3511 | lp->tx_n_in_use++; | |
3512 | ||
3513 | /* Calculate addresses of the different parts of the block. */ | |
3514 | tx_addr = txblock; | |
3515 | nop_addr = tx_addr + sizeof(tx); | |
3516 | tbd_addr = nop_addr + sizeof(nop); | |
3517 | cfg_addr = tbd_addr + sizeof(tbd_t); /* beginning of the buffer */ | |
3518 | ias_addr = cfg_addr + sizeof(cfg); | |
3519 | mcs_addr = ias_addr + sizeof(ias); | |
3520 | ||
3521 | /* | |
3522 | * Transmit command | |
3523 | */ | |
3524 | tx.tx_h.ac_status = 0xFFFF; /* Fake completion value */ | |
3525 | obram_write(ioaddr, toff(ac_tx_t, tx_addr, tx_h.ac_status), | |
3526 | (unsigned char *) &tx.tx_h.ac_status, | |
3527 | sizeof(tx.tx_h.ac_status)); | |
3528 | ||
3529 | /* | |
3530 | * NOP command | |
3531 | */ | |
3532 | nop.nop_h.ac_status = 0; | |
3533 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status), | |
3534 | (unsigned char *) &nop.nop_h.ac_status, | |
3535 | sizeof(nop.nop_h.ac_status)); | |
3536 | nop.nop_h.ac_link = nop_addr; | |
3537 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link), | |
3538 | (unsigned char *) &nop.nop_h.ac_link, | |
3539 | sizeof(nop.nop_h.ac_link)); | |
3540 | ||
3541 | /* Create a configure action. */ | |
3542 | memset(&cfg, 0x00, sizeof(cfg)); | |
3543 | ||
3544 | /* | |
3545 | * For Linux we invert AC_CFG_ALOC() so as to conform | |
3546 | * to the way that net packets reach us from above. | |
3547 | * (See also ac_tx_t.) | |
3548 | * | |
3549 | * Updated from Wavelan Manual WCIN085B | |
3550 | */ | |
3551 | cfg.cfg_byte_cnt = | |
3552 | AC_CFG_BYTE_CNT(sizeof(ac_cfg_t) - sizeof(ach_t)); | |
3553 | cfg.cfg_fifolim = AC_CFG_FIFOLIM(4); | |
3554 | cfg.cfg_byte8 = AC_CFG_SAV_BF(1) | AC_CFG_SRDY(0); | |
3555 | cfg.cfg_byte9 = AC_CFG_ELPBCK(0) | | |
3556 | AC_CFG_ILPBCK(0) | | |
3557 | AC_CFG_PRELEN(AC_CFG_PLEN_2) | | |
3558 | AC_CFG_ALOC(1) | AC_CFG_ADDRLEN(WAVELAN_ADDR_SIZE); | |
3559 | cfg.cfg_byte10 = AC_CFG_BOFMET(1) | | |
3560 | AC_CFG_ACR(6) | AC_CFG_LINPRIO(0); | |
3561 | cfg.cfg_ifs = 0x20; | |
3562 | cfg.cfg_slotl = 0x0C; | |
3563 | cfg.cfg_byte13 = AC_CFG_RETRYNUM(15) | AC_CFG_SLTTMHI(0); | |
3564 | cfg.cfg_byte14 = AC_CFG_FLGPAD(0) | | |
3565 | AC_CFG_BTSTF(0) | | |
3566 | AC_CFG_CRC16(0) | | |
3567 | AC_CFG_NCRC(0) | | |
3568 | AC_CFG_TNCRS(1) | | |
3569 | AC_CFG_MANCH(0) | | |
3570 | AC_CFG_BCDIS(0) | AC_CFG_PRM(lp->promiscuous); | |
3571 | cfg.cfg_byte15 = AC_CFG_ICDS(0) | | |
3572 | AC_CFG_CDTF(0) | AC_CFG_ICSS(0) | AC_CFG_CSTF(0); | |
3573 | /* | |
3574 | cfg.cfg_min_frm_len = AC_CFG_MNFRM(64); | |
3575 | */ | |
3576 | cfg.cfg_min_frm_len = AC_CFG_MNFRM(8); | |
3577 | ||
3578 | cfg.cfg_h.ac_command = (AC_CFLD_CMD & acmd_configure); | |
3579 | cfg.cfg_h.ac_link = ias_addr; | |
3580 | obram_write(ioaddr, cfg_addr, (unsigned char *) &cfg, sizeof(cfg)); | |
3581 | ||
3582 | /* Set up the MAC address */ | |
3583 | memset(&ias, 0x00, sizeof(ias)); | |
3584 | ias.ias_h.ac_command = (AC_CFLD_CMD & acmd_ia_setup); | |
3585 | ias.ias_h.ac_link = mcs_addr; | |
3586 | memcpy(&ias.ias_addr[0], (unsigned char *) &dev->dev_addr[0], | |
3587 | sizeof(ias.ias_addr)); | |
3588 | obram_write(ioaddr, ias_addr, (unsigned char *) &ias, sizeof(ias)); | |
3589 | ||
3590 | /* Initialize adapter's Ethernet multicast addresses */ | |
3591 | memset(&mcs, 0x00, sizeof(mcs)); | |
3592 | mcs.mcs_h.ac_command = AC_CFLD_I | (AC_CFLD_CMD & acmd_mc_setup); | |
3593 | mcs.mcs_h.ac_link = nop_addr; | |
3594 | mcs.mcs_cnt = WAVELAN_ADDR_SIZE * lp->mc_count; | |
3595 | obram_write(ioaddr, mcs_addr, (unsigned char *) &mcs, sizeof(mcs)); | |
3596 | ||
3597 | /* Any address to set? */ | |
3598 | if (lp->mc_count) { | |
3599 | for (dmi = dev->mc_list; dmi; dmi = dmi->next) | |
3600 | outsw(PIOP1(ioaddr), (u16 *) dmi->dmi_addr, | |
3601 | WAVELAN_ADDR_SIZE >> 1); | |
3602 | ||
3603 | #ifdef DEBUG_CONFIG_INFO | |
3604 | printk(KERN_DEBUG | |
3605 | "%s: wv_82586_config(): set %d multicast addresses:\n", | |
3606 | dev->name, lp->mc_count); | |
3607 | for (dmi = dev->mc_list; dmi; dmi = dmi->next) | |
3608 | printk(KERN_DEBUG | |
3609 | " %02x:%02x:%02x:%02x:%02x:%02x\n", | |
3610 | dmi->dmi_addr[0], dmi->dmi_addr[1], | |
3611 | dmi->dmi_addr[2], dmi->dmi_addr[3], | |
3612 | dmi->dmi_addr[4], dmi->dmi_addr[5]); | |
3613 | #endif | |
3614 | } | |
3615 | ||
3616 | /* | |
3617 | * Overwrite the predecessor NOP link | |
3618 | * so that it points to the configure action. | |
3619 | */ | |
3620 | nop_addr = txpred + sizeof(tx); | |
3621 | nop.nop_h.ac_status = 0; | |
3622 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status), | |
3623 | (unsigned char *) &nop.nop_h.ac_status, | |
3624 | sizeof(nop.nop_h.ac_status)); | |
3625 | nop.nop_h.ac_link = cfg_addr; | |
3626 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link), | |
3627 | (unsigned char *) &nop.nop_h.ac_link, | |
3628 | sizeof(nop.nop_h.ac_link)); | |
3629 | ||
3630 | /* Job done, clear the flag */ | |
3631 | lp->reconfig_82586 = 0; | |
3632 | ||
3633 | if (lp->tx_first_in_use == I82586NULL) | |
3634 | lp->tx_first_in_use = txblock; | |
3635 | ||
3636 | if (lp->tx_n_in_use == (NTXBLOCKS - 1)) | |
3637 | netif_stop_queue(dev); | |
3638 | ||
3639 | #ifdef DEBUG_CONFIG_TRACE | |
3640 | printk(KERN_DEBUG "%s: <-wv_82586_config()\n", dev->name); | |
3641 | #endif | |
3642 | } | |
3643 | ||
3644 | /*------------------------------------------------------------------*/ | |
3645 | /* | |
3646 | * This routine, called by wavelan_close(), gracefully stops the | |
3647 | * WaveLAN controller (i82586). | |
3648 | * (called by wavelan_close()) | |
3649 | */ | |
3650 | static inline void wv_82586_stop(struct net_device * dev) | |
3651 | { | |
3652 | net_local *lp = (net_local *) dev->priv; | |
3653 | unsigned long ioaddr = dev->base_addr; | |
3654 | u16 scb_cmd; | |
3655 | ||
3656 | #ifdef DEBUG_CONFIG_TRACE | |
3657 | printk(KERN_DEBUG "%s: ->wv_82586_stop()\n", dev->name); | |
3658 | #endif | |
3659 | ||
3660 | /* Suspend both command unit and receive unit. */ | |
3661 | scb_cmd = | |
3662 | (SCB_CMD_CUC & SCB_CMD_CUC_SUS) | (SCB_CMD_RUC & | |
3663 | SCB_CMD_RUC_SUS); | |
3664 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_command), | |
3665 | (unsigned char *) &scb_cmd, sizeof(scb_cmd)); | |
3666 | set_chan_attn(ioaddr, lp->hacr); | |
3667 | ||
3668 | /* No more interrupts */ | |
3669 | wv_ints_off(dev); | |
3670 | ||
3671 | #ifdef DEBUG_CONFIG_TRACE | |
3672 | printk(KERN_DEBUG "%s: <-wv_82586_stop()\n", dev->name); | |
3673 | #endif | |
3674 | } | |
3675 | ||
3676 | /*------------------------------------------------------------------*/ | |
3677 | /* | |
3678 | * Totally reset the WaveLAN and restart it. | |
3679 | * Performs the following actions: | |
3680 | * 1. A power reset (reset DMA) | |
3681 | * 2. Initialize the radio modem (using wv_mmc_init) | |
3682 | * 3. Reset & Configure LAN controller (using wv_82586_start) | |
3683 | * 4. Start the LAN controller's command unit | |
3684 | * 5. Start the LAN controller's receive unit | |
3685 | * (called by wavelan_interrupt(), wavelan_watchdog() & wavelan_open()) | |
3686 | */ | |
3687 | static int wv_hw_reset(struct net_device * dev) | |
3688 | { | |
3689 | net_local *lp = (net_local *) dev->priv; | |
3690 | unsigned long ioaddr = dev->base_addr; | |
3691 | ||
3692 | #ifdef DEBUG_CONFIG_TRACE | |
3693 | printk(KERN_DEBUG "%s: ->wv_hw_reset(dev=0x%x)\n", dev->name, | |
3694 | (unsigned int) dev); | |
3695 | #endif | |
3696 | ||
3697 | /* Increase the number of resets done. */ | |
3698 | lp->nresets++; | |
3699 | ||
3700 | wv_hacr_reset(ioaddr); | |
3701 | lp->hacr = HACR_DEFAULT; | |
3702 | ||
3703 | if ((wv_mmc_init(dev) < 0) || (wv_82586_start(dev) < 0)) | |
3704 | return -1; | |
3705 | ||
3706 | /* Enable the card to send interrupts. */ | |
3707 | wv_ints_on(dev); | |
3708 | ||
3709 | /* Start card functions */ | |
3710 | if (wv_cu_start(dev) < 0) | |
3711 | return -1; | |
3712 | ||
3713 | /* Setup the controller and parameters */ | |
3714 | wv_82586_config(dev); | |
3715 | ||
3716 | /* Finish configuration with the receive unit */ | |
3717 | if (wv_ru_start(dev) < 0) | |
3718 | return -1; | |
3719 | ||
3720 | #ifdef DEBUG_CONFIG_TRACE | |
3721 | printk(KERN_DEBUG "%s: <-wv_hw_reset()\n", dev->name); | |
3722 | #endif | |
3723 | return 0; | |
3724 | } | |
3725 | ||
3726 | /*------------------------------------------------------------------*/ | |
3727 | /* | |
3728 | * Check if there is a WaveLAN at the specific base address. | |
3729 | * As a side effect, this reads the MAC address. | |
3730 | * (called in wavelan_probe() and init_module()) | |
3731 | */ | |
3732 | static int wv_check_ioaddr(unsigned long ioaddr, u8 * mac) | |
3733 | { | |
3734 | int i; /* Loop counter */ | |
3735 | ||
3736 | /* Check if the base address if available. */ | |
3737 | if (!request_region(ioaddr, sizeof(ha_t), "wavelan probe")) | |
3738 | return -EBUSY; /* ioaddr already used */ | |
3739 | ||
3740 | /* Reset host interface */ | |
3741 | wv_hacr_reset(ioaddr); | |
3742 | ||
3743 | /* Read the MAC address from the parameter storage area. */ | |
3744 | psa_read(ioaddr, HACR_DEFAULT, psaoff(0, psa_univ_mac_addr), | |
3745 | mac, 6); | |
3746 | ||
3747 | release_region(ioaddr, sizeof(ha_t)); | |
3748 | ||
3749 | /* | |
3750 | * Check the first three octets of the address for the manufacturer's code. | |
3751 | * Note: if this can't find your WaveLAN card, you've got a | |
3752 | * non-NCR/AT&T/Lucent ISA card. See wavelan.p.h for detail on | |
3753 | * how to configure your card. | |
3754 | */ | |
3755 | for (i = 0; i < (sizeof(MAC_ADDRESSES) / sizeof(char) / 3); i++) | |
3756 | if ((mac[0] == MAC_ADDRESSES[i][0]) && | |
3757 | (mac[1] == MAC_ADDRESSES[i][1]) && | |
3758 | (mac[2] == MAC_ADDRESSES[i][2])) | |
3759 | return 0; | |
3760 | ||
3761 | #ifdef DEBUG_CONFIG_INFO | |
3762 | printk(KERN_WARNING | |
3763 | "WaveLAN (0x%3X): your MAC address might be %02X:%02X:%02X.\n", | |
3764 | ioaddr, mac[0], mac[1], mac[2]); | |
3765 | #endif | |
3766 | return -ENODEV; | |
3767 | } | |
3768 | ||
3769 | /************************ INTERRUPT HANDLING ************************/ | |
3770 | ||
3771 | /* | |
3772 | * This function is the interrupt handler for the WaveLAN card. This | |
3773 | * routine will be called whenever: | |
3774 | */ | |
3775 | static irqreturn_t wavelan_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
3776 | { | |
3777 | struct net_device *dev; | |
3778 | unsigned long ioaddr; | |
3779 | net_local *lp; | |
3780 | u16 hasr; | |
3781 | u16 status; | |
3782 | u16 ack_cmd; | |
3783 | ||
3784 | dev = dev_id; | |
3785 | ||
3786 | #ifdef DEBUG_INTERRUPT_TRACE | |
3787 | printk(KERN_DEBUG "%s: ->wavelan_interrupt()\n", dev->name); | |
3788 | #endif | |
3789 | ||
3790 | lp = (net_local *) dev->priv; | |
3791 | ioaddr = dev->base_addr; | |
3792 | ||
3793 | #ifdef DEBUG_INTERRUPT_INFO | |
3794 | /* Check state of our spinlock */ | |
3795 | if(spin_is_locked(&lp->spinlock)) | |
3796 | printk(KERN_DEBUG | |
3797 | "%s: wavelan_interrupt(): spinlock is already locked !!!\n", | |
3798 | dev->name); | |
3799 | #endif | |
3800 | ||
3801 | /* Prevent reentrancy. We need to do that because we may have | |
3802 | * multiple interrupt handler running concurrently. | |
3803 | * It is safe because interrupts are disabled before acquiring | |
3804 | * the spinlock. */ | |
3805 | spin_lock(&lp->spinlock); | |
3806 | ||
3807 | /* We always had spurious interrupts at startup, but lately I | |
3808 | * saw them comming *between* the request_irq() and the | |
3809 | * spin_lock_irqsave() in wavelan_open(), so the spinlock | |
3810 | * protection is no enough. | |
3811 | * So, we also check lp->hacr that will tell us is we enabled | |
3812 | * irqs or not (see wv_ints_on()). | |
3813 | * We can't use netif_running(dev) because we depend on the | |
3814 | * proper processing of the irq generated during the config. */ | |
3815 | ||
3816 | /* Which interrupt it is ? */ | |
3817 | hasr = hasr_read(ioaddr); | |
3818 | ||
3819 | #ifdef DEBUG_INTERRUPT_INFO | |
3820 | printk(KERN_INFO | |
3821 | "%s: wavelan_interrupt(): hasr 0x%04x; hacr 0x%04x.\n", | |
3822 | dev->name, hasr, lp->hacr); | |
3823 | #endif | |
3824 | ||
3825 | /* Check modem interrupt */ | |
3826 | if ((hasr & HASR_MMC_INTR) && (lp->hacr & HACR_MMC_INT_ENABLE)) { | |
3827 | u8 dce_status; | |
3828 | ||
3829 | /* | |
3830 | * Interrupt from the modem management controller. | |
3831 | * This will clear it -- ignored for now. | |
3832 | */ | |
3833 | mmc_read(ioaddr, mmroff(0, mmr_dce_status), &dce_status, | |
3834 | sizeof(dce_status)); | |
3835 | ||
3836 | #ifdef DEBUG_INTERRUPT_ERROR | |
3837 | printk(KERN_INFO | |
3838 | "%s: wavelan_interrupt(): unexpected mmc interrupt: status 0x%04x.\n", | |
3839 | dev->name, dce_status); | |
3840 | #endif | |
3841 | } | |
3842 | ||
3843 | /* Check if not controller interrupt */ | |
3844 | if (((hasr & HASR_82586_INTR) == 0) || | |
3845 | ((lp->hacr & HACR_82586_INT_ENABLE) == 0)) { | |
3846 | #ifdef DEBUG_INTERRUPT_ERROR | |
3847 | printk(KERN_INFO | |
3848 | "%s: wavelan_interrupt(): interrupt not coming from i82586 - hasr 0x%04x.\n", | |
3849 | dev->name, hasr); | |
3850 | #endif | |
3851 | spin_unlock (&lp->spinlock); | |
3852 | return IRQ_NONE; | |
3853 | } | |
3854 | ||
3855 | /* Read interrupt data. */ | |
3856 | obram_read(ioaddr, scboff(OFFSET_SCB, scb_status), | |
3857 | (unsigned char *) &status, sizeof(status)); | |
3858 | ||
3859 | /* | |
3860 | * Acknowledge the interrupt(s). | |
3861 | */ | |
3862 | ack_cmd = status & SCB_ST_INT; | |
3863 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_command), | |
3864 | (unsigned char *) &ack_cmd, sizeof(ack_cmd)); | |
3865 | set_chan_attn(ioaddr, lp->hacr); | |
3866 | ||
3867 | #ifdef DEBUG_INTERRUPT_INFO | |
3868 | printk(KERN_DEBUG "%s: wavelan_interrupt(): status 0x%04x.\n", | |
3869 | dev->name, status); | |
3870 | #endif | |
3871 | ||
3872 | /* Command completed. */ | |
3873 | if ((status & SCB_ST_CX) == SCB_ST_CX) { | |
3874 | #ifdef DEBUG_INTERRUPT_INFO | |
3875 | printk(KERN_DEBUG | |
3876 | "%s: wavelan_interrupt(): command completed.\n", | |
3877 | dev->name); | |
3878 | #endif | |
3879 | wv_complete(dev, ioaddr, lp); | |
3880 | } | |
3881 | ||
3882 | /* Frame received. */ | |
3883 | if ((status & SCB_ST_FR) == SCB_ST_FR) { | |
3884 | #ifdef DEBUG_INTERRUPT_INFO | |
3885 | printk(KERN_DEBUG | |
3886 | "%s: wavelan_interrupt(): received packet.\n", | |
3887 | dev->name); | |
3888 | #endif | |
3889 | wv_receive(dev); | |
3890 | } | |
3891 | ||
3892 | /* Check the state of the command unit. */ | |
3893 | if (((status & SCB_ST_CNA) == SCB_ST_CNA) || | |
3894 | (((status & SCB_ST_CUS) != SCB_ST_CUS_ACTV) && | |
3895 | (netif_running(dev)))) { | |
3896 | #ifdef DEBUG_INTERRUPT_ERROR | |
3897 | printk(KERN_INFO | |
3898 | "%s: wavelan_interrupt(): CU inactive -- restarting\n", | |
3899 | dev->name); | |
3900 | #endif | |
3901 | wv_hw_reset(dev); | |
3902 | } | |
3903 | ||
3904 | /* Check the state of the command unit. */ | |
3905 | if (((status & SCB_ST_RNR) == SCB_ST_RNR) || | |
3906 | (((status & SCB_ST_RUS) != SCB_ST_RUS_RDY) && | |
3907 | (netif_running(dev)))) { | |
3908 | #ifdef DEBUG_INTERRUPT_ERROR | |
3909 | printk(KERN_INFO | |
3910 | "%s: wavelan_interrupt(): RU not ready -- restarting\n", | |
3911 | dev->name); | |
3912 | #endif | |
3913 | wv_hw_reset(dev); | |
3914 | } | |
3915 | ||
3916 | /* Release spinlock */ | |
3917 | spin_unlock (&lp->spinlock); | |
3918 | ||
3919 | #ifdef DEBUG_INTERRUPT_TRACE | |
3920 | printk(KERN_DEBUG "%s: <-wavelan_interrupt()\n", dev->name); | |
3921 | #endif | |
3922 | return IRQ_HANDLED; | |
3923 | } | |
3924 | ||
3925 | /*------------------------------------------------------------------*/ | |
3926 | /* | |
3927 | * Watchdog: when we start a transmission, a timer is set for us in the | |
3928 | * kernel. If the transmission completes, this timer is disabled. If | |
3929 | * the timer expires, we are called and we try to unlock the hardware. | |
3930 | */ | |
3931 | static void wavelan_watchdog(struct net_device * dev) | |
3932 | { | |
3933 | net_local * lp = (net_local *)dev->priv; | |
3934 | u_long ioaddr = dev->base_addr; | |
3935 | unsigned long flags; | |
3936 | unsigned int nreaped; | |
3937 | ||
3938 | #ifdef DEBUG_INTERRUPT_TRACE | |
3939 | printk(KERN_DEBUG "%s: ->wavelan_watchdog()\n", dev->name); | |
3940 | #endif | |
3941 | ||
3942 | #ifdef DEBUG_INTERRUPT_ERROR | |
3943 | printk(KERN_INFO "%s: wavelan_watchdog: watchdog timer expired\n", | |
3944 | dev->name); | |
3945 | #endif | |
3946 | ||
3947 | /* Check that we came here for something */ | |
3948 | if (lp->tx_n_in_use <= 0) { | |
3949 | return; | |
3950 | } | |
3951 | ||
3952 | spin_lock_irqsave(&lp->spinlock, flags); | |
3953 | ||
3954 | /* Try to see if some buffers are not free (in case we missed | |
3955 | * an interrupt */ | |
3956 | nreaped = wv_complete(dev, ioaddr, lp); | |
3957 | ||
3958 | #ifdef DEBUG_INTERRUPT_INFO | |
3959 | printk(KERN_DEBUG | |
3960 | "%s: wavelan_watchdog(): %d reaped, %d remain.\n", | |
3961 | dev->name, nreaped, lp->tx_n_in_use); | |
3962 | #endif | |
3963 | ||
3964 | #ifdef DEBUG_PSA_SHOW | |
3965 | { | |
3966 | psa_t psa; | |
3967 | psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa)); | |
3968 | wv_psa_show(&psa); | |
3969 | } | |
3970 | #endif | |
3971 | #ifdef DEBUG_MMC_SHOW | |
3972 | wv_mmc_show(dev); | |
3973 | #endif | |
3974 | #ifdef DEBUG_I82586_SHOW | |
3975 | wv_cu_show(dev); | |
3976 | #endif | |
3977 | ||
3978 | /* If no buffer has been freed */ | |
3979 | if (nreaped == 0) { | |
3980 | #ifdef DEBUG_INTERRUPT_ERROR | |
3981 | printk(KERN_INFO | |
3982 | "%s: wavelan_watchdog(): cleanup failed, trying reset\n", | |
3983 | dev->name); | |
3984 | #endif | |
3985 | wv_hw_reset(dev); | |
3986 | } | |
3987 | ||
3988 | /* At this point, we should have some free Tx buffer ;-) */ | |
3989 | if (lp->tx_n_in_use < NTXBLOCKS - 1) | |
3990 | netif_wake_queue(dev); | |
3991 | ||
3992 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
3993 | ||
3994 | #ifdef DEBUG_INTERRUPT_TRACE | |
3995 | printk(KERN_DEBUG "%s: <-wavelan_watchdog()\n", dev->name); | |
3996 | #endif | |
3997 | } | |
3998 | ||
3999 | /********************* CONFIGURATION CALLBACKS *********************/ | |
4000 | /* | |
4001 | * Here are the functions called by the Linux networking code (NET3) | |
4002 | * for initialization, configuration and deinstallations of the | |
4003 | * WaveLAN ISA hardware. | |
4004 | */ | |
4005 | ||
4006 | /*------------------------------------------------------------------*/ | |
4007 | /* | |
4008 | * Configure and start up the WaveLAN PCMCIA adaptor. | |
4009 | * Called by NET3 when it "opens" the device. | |
4010 | */ | |
4011 | static int wavelan_open(struct net_device * dev) | |
4012 | { | |
4013 | net_local * lp = (net_local *)dev->priv; | |
4014 | unsigned long flags; | |
4015 | ||
4016 | #ifdef DEBUG_CALLBACK_TRACE | |
4017 | printk(KERN_DEBUG "%s: ->wavelan_open(dev=0x%x)\n", dev->name, | |
4018 | (unsigned int) dev); | |
4019 | #endif | |
4020 | ||
4021 | /* Check irq */ | |
4022 | if (dev->irq == 0) { | |
4023 | #ifdef DEBUG_CONFIG_ERROR | |
4024 | printk(KERN_WARNING "%s: wavelan_open(): no IRQ\n", | |
4025 | dev->name); | |
4026 | #endif | |
4027 | return -ENXIO; | |
4028 | } | |
4029 | ||
4030 | if (request_irq(dev->irq, &wavelan_interrupt, 0, "WaveLAN", dev) != 0) | |
4031 | { | |
4032 | #ifdef DEBUG_CONFIG_ERROR | |
4033 | printk(KERN_WARNING "%s: wavelan_open(): invalid IRQ\n", | |
4034 | dev->name); | |
4035 | #endif | |
4036 | return -EAGAIN; | |
4037 | } | |
4038 | ||
4039 | spin_lock_irqsave(&lp->spinlock, flags); | |
4040 | ||
4041 | if (wv_hw_reset(dev) != -1) { | |
4042 | netif_start_queue(dev); | |
4043 | } else { | |
4044 | free_irq(dev->irq, dev); | |
4045 | #ifdef DEBUG_CONFIG_ERROR | |
4046 | printk(KERN_INFO | |
4047 | "%s: wavelan_open(): impossible to start the card\n", | |
4048 | dev->name); | |
4049 | #endif | |
4050 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
4051 | return -EAGAIN; | |
4052 | } | |
4053 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
4054 | ||
4055 | #ifdef DEBUG_CALLBACK_TRACE | |
4056 | printk(KERN_DEBUG "%s: <-wavelan_open()\n", dev->name); | |
4057 | #endif | |
4058 | return 0; | |
4059 | } | |
4060 | ||
4061 | /*------------------------------------------------------------------*/ | |
4062 | /* | |
4063 | * Shut down the WaveLAN ISA card. | |
4064 | * Called by NET3 when it "closes" the device. | |
4065 | */ | |
4066 | static int wavelan_close(struct net_device * dev) | |
4067 | { | |
4068 | net_local *lp = (net_local *) dev->priv; | |
4069 | unsigned long flags; | |
4070 | ||
4071 | #ifdef DEBUG_CALLBACK_TRACE | |
4072 | printk(KERN_DEBUG "%s: ->wavelan_close(dev=0x%x)\n", dev->name, | |
4073 | (unsigned int) dev); | |
4074 | #endif | |
4075 | ||
4076 | netif_stop_queue(dev); | |
4077 | ||
4078 | /* | |
4079 | * Flush the Tx and disable Rx. | |
4080 | */ | |
4081 | spin_lock_irqsave(&lp->spinlock, flags); | |
4082 | wv_82586_stop(dev); | |
4083 | spin_unlock_irqrestore(&lp->spinlock, flags); | |
4084 | ||
4085 | free_irq(dev->irq, dev); | |
4086 | ||
4087 | #ifdef DEBUG_CALLBACK_TRACE | |
4088 | printk(KERN_DEBUG "%s: <-wavelan_close()\n", dev->name); | |
4089 | #endif | |
4090 | return 0; | |
4091 | } | |
4092 | ||
4093 | /*------------------------------------------------------------------*/ | |
4094 | /* | |
4095 | * Probe an I/O address, and if the WaveLAN is there configure the | |
4096 | * device structure | |
4097 | * (called by wavelan_probe() and via init_module()). | |
4098 | */ | |
4099 | static int __init wavelan_config(struct net_device *dev, unsigned short ioaddr) | |
4100 | { | |
4101 | u8 irq_mask; | |
4102 | int irq; | |
4103 | net_local *lp; | |
4104 | mac_addr mac; | |
4105 | int err; | |
4106 | ||
4107 | if (!request_region(ioaddr, sizeof(ha_t), "wavelan")) | |
4108 | return -EADDRINUSE; | |
4109 | ||
4110 | err = wv_check_ioaddr(ioaddr, mac); | |
4111 | if (err) | |
4112 | goto out; | |
4113 | ||
4114 | memcpy(dev->dev_addr, mac, 6); | |
4115 | ||
4116 | dev->base_addr = ioaddr; | |
4117 | ||
4118 | #ifdef DEBUG_CALLBACK_TRACE | |
4119 | printk(KERN_DEBUG "%s: ->wavelan_config(dev=0x%x, ioaddr=0x%lx)\n", | |
4120 | dev->name, (unsigned int) dev, ioaddr); | |
4121 | #endif | |
4122 | ||
4123 | /* Check IRQ argument on command line. */ | |
4124 | if (dev->irq != 0) { | |
4125 | irq_mask = wv_irq_to_psa(dev->irq); | |
4126 | ||
4127 | if (irq_mask == 0) { | |
4128 | #ifdef DEBUG_CONFIG_ERROR | |
4129 | printk(KERN_WARNING | |
4130 | "%s: wavelan_config(): invalid IRQ %d ignored.\n", | |
4131 | dev->name, dev->irq); | |
4132 | #endif | |
4133 | dev->irq = 0; | |
4134 | } else { | |
4135 | #ifdef DEBUG_CONFIG_INFO | |
4136 | printk(KERN_DEBUG | |
4137 | "%s: wavelan_config(): changing IRQ to %d\n", | |
4138 | dev->name, dev->irq); | |
4139 | #endif | |
4140 | psa_write(ioaddr, HACR_DEFAULT, | |
4141 | psaoff(0, psa_int_req_no), &irq_mask, 1); | |
4142 | /* update the Wavelan checksum */ | |
4143 | update_psa_checksum(dev, ioaddr, HACR_DEFAULT); | |
4144 | wv_hacr_reset(ioaddr); | |
4145 | } | |
4146 | } | |
4147 | ||
4148 | psa_read(ioaddr, HACR_DEFAULT, psaoff(0, psa_int_req_no), | |
4149 | &irq_mask, 1); | |
4150 | if ((irq = wv_psa_to_irq(irq_mask)) == -1) { | |
4151 | #ifdef DEBUG_CONFIG_ERROR | |
4152 | printk(KERN_INFO | |
4153 | "%s: wavelan_config(): could not wavelan_map_irq(%d).\n", | |
4154 | dev->name, irq_mask); | |
4155 | #endif | |
4156 | err = -EAGAIN; | |
4157 | goto out; | |
4158 | } | |
4159 | ||
4160 | dev->irq = irq; | |
4161 | ||
4162 | dev->mem_start = 0x0000; | |
4163 | dev->mem_end = 0x0000; | |
4164 | dev->if_port = 0; | |
4165 | ||
4166 | /* Initialize device structures */ | |
4167 | memset(dev->priv, 0, sizeof(net_local)); | |
4168 | lp = (net_local *) dev->priv; | |
4169 | ||
4170 | /* Back link to the device structure. */ | |
4171 | lp->dev = dev; | |
4172 | /* Add the device at the beginning of the linked list. */ | |
4173 | lp->next = wavelan_list; | |
4174 | wavelan_list = lp; | |
4175 | ||
4176 | lp->hacr = HACR_DEFAULT; | |
4177 | ||
4178 | /* Multicast stuff */ | |
4179 | lp->promiscuous = 0; | |
4180 | lp->mc_count = 0; | |
4181 | ||
4182 | /* Init spinlock */ | |
4183 | spin_lock_init(&lp->spinlock); | |
4184 | ||
4185 | SET_MODULE_OWNER(dev); | |
4186 | dev->open = wavelan_open; | |
4187 | dev->stop = wavelan_close; | |
4188 | dev->hard_start_xmit = wavelan_packet_xmit; | |
4189 | dev->get_stats = wavelan_get_stats; | |
4190 | dev->set_multicast_list = &wavelan_set_multicast_list; | |
4191 | dev->tx_timeout = &wavelan_watchdog; | |
4192 | dev->watchdog_timeo = WATCHDOG_JIFFIES; | |
4193 | #ifdef SET_MAC_ADDRESS | |
4194 | dev->set_mac_address = &wavelan_set_mac_address; | |
4195 | #endif /* SET_MAC_ADDRESS */ | |
4196 | ||
4197 | #ifdef WIRELESS_EXT /* if wireless extension exists in the kernel */ | |
4198 | dev->wireless_handlers = &wavelan_handler_def; | |
4199 | lp->wireless_data.spy_data = &lp->spy_data; | |
4200 | dev->wireless_data = &lp->wireless_data; | |
4201 | #endif | |
4202 | ||
4203 | dev->mtu = WAVELAN_MTU; | |
4204 | ||
4205 | /* Display nice information. */ | |
4206 | wv_init_info(dev); | |
4207 | ||
4208 | #ifdef DEBUG_CALLBACK_TRACE | |
4209 | printk(KERN_DEBUG "%s: <-wavelan_config()\n", dev->name); | |
4210 | #endif | |
4211 | return 0; | |
4212 | out: | |
4213 | release_region(ioaddr, sizeof(ha_t)); | |
4214 | return err; | |
4215 | } | |
4216 | ||
4217 | /*------------------------------------------------------------------*/ | |
4218 | /* | |
4219 | * Check for a network adaptor of this type. Return '0' iff one | |
4220 | * exists. There seem to be different interpretations of | |
4221 | * the initial value of dev->base_addr. | |
4222 | * We follow the example in drivers/net/ne.c. | |
4223 | * (called in "Space.c") | |
4224 | */ | |
4225 | struct net_device * __init wavelan_probe(int unit) | |
4226 | { | |
4227 | struct net_device *dev; | |
4228 | short base_addr; | |
4229 | int def_irq; | |
4230 | int i; | |
4231 | int r = 0; | |
4232 | ||
4233 | #ifdef STRUCT_CHECK | |
4234 | if (wv_struct_check() != (char *) NULL) { | |
4235 | printk(KERN_WARNING | |
4236 | "%s: wavelan_probe(): structure/compiler botch: \"%s\"\n", | |
4237 | dev->name, wv_struct_check()); | |
4238 | return -ENODEV; | |
4239 | } | |
4240 | #endif /* STRUCT_CHECK */ | |
4241 | ||
4242 | dev = alloc_etherdev(sizeof(net_local)); | |
4243 | if (!dev) | |
4244 | return ERR_PTR(-ENOMEM); | |
4245 | ||
4246 | sprintf(dev->name, "eth%d", unit); | |
4247 | netdev_boot_setup_check(dev); | |
4248 | base_addr = dev->base_addr; | |
4249 | def_irq = dev->irq; | |
4250 | ||
4251 | #ifdef DEBUG_CALLBACK_TRACE | |
4252 | printk(KERN_DEBUG | |
4253 | "%s: ->wavelan_probe(dev=%p (base_addr=0x%x))\n", | |
4254 | dev->name, dev, (unsigned int) dev->base_addr); | |
4255 | #endif | |
4256 | ||
4257 | /* Don't probe at all. */ | |
4258 | if (base_addr < 0) { | |
4259 | #ifdef DEBUG_CONFIG_ERROR | |
4260 | printk(KERN_WARNING | |
4261 | "%s: wavelan_probe(): invalid base address\n", | |
4262 | dev->name); | |
4263 | #endif | |
4264 | r = -ENXIO; | |
4265 | } else if (base_addr > 0x100) { /* Check a single specified location. */ | |
4266 | r = wavelan_config(dev, base_addr); | |
4267 | #ifdef DEBUG_CONFIG_INFO | |
4268 | if (r != 0) | |
4269 | printk(KERN_DEBUG | |
4270 | "%s: wavelan_probe(): no device at specified base address (0x%X) or address already in use\n", | |
4271 | dev->name, base_addr); | |
4272 | #endif | |
4273 | ||
4274 | #ifdef DEBUG_CALLBACK_TRACE | |
4275 | printk(KERN_DEBUG "%s: <-wavelan_probe()\n", dev->name); | |
4276 | #endif | |
4277 | } else { /* Scan all possible addresses of the WaveLAN hardware. */ | |
4278 | for (i = 0; i < NELS(iobase); i++) { | |
4279 | dev->irq = def_irq; | |
4280 | if (wavelan_config(dev, iobase[i]) == 0) { | |
4281 | #ifdef DEBUG_CALLBACK_TRACE | |
4282 | printk(KERN_DEBUG | |
4283 | "%s: <-wavelan_probe()\n", | |
4284 | dev->name); | |
4285 | #endif | |
4286 | break; | |
4287 | } | |
4288 | } | |
4289 | if (i == NELS(iobase)) | |
4290 | r = -ENODEV; | |
4291 | } | |
4292 | if (r) | |
4293 | goto out; | |
4294 | r = register_netdev(dev); | |
4295 | if (r) | |
4296 | goto out1; | |
4297 | return dev; | |
4298 | out1: | |
4299 | release_region(dev->base_addr, sizeof(ha_t)); | |
4300 | wavelan_list = wavelan_list->next; | |
4301 | out: | |
4302 | free_netdev(dev); | |
4303 | return ERR_PTR(r); | |
4304 | } | |
4305 | ||
4306 | /****************************** MODULE ******************************/ | |
4307 | /* | |
4308 | * Module entry point: insertion and removal | |
4309 | */ | |
4310 | ||
4311 | #ifdef MODULE | |
4312 | /*------------------------------------------------------------------*/ | |
4313 | /* | |
4314 | * Insertion of the module | |
4315 | * I'm now quite proud of the multi-device support. | |
4316 | */ | |
4317 | int init_module(void) | |
4318 | { | |
4319 | int ret = -EIO; /* Return error if no cards found */ | |
4320 | int i; | |
4321 | ||
4322 | #ifdef DEBUG_MODULE_TRACE | |
4323 | printk(KERN_DEBUG "-> init_module()\n"); | |
4324 | #endif | |
4325 | ||
4326 | /* If probing is asked */ | |
4327 | if (io[0] == 0) { | |
4328 | #ifdef DEBUG_CONFIG_ERROR | |
4329 | printk(KERN_WARNING | |
4330 | "WaveLAN init_module(): doing device probing (bad !)\n"); | |
4331 | printk(KERN_WARNING | |
4332 | "Specify base addresses while loading module to correct the problem\n"); | |
4333 | #endif | |
4334 | ||
4335 | /* Copy the basic set of address to be probed. */ | |
4336 | for (i = 0; i < NELS(iobase); i++) | |
4337 | io[i] = iobase[i]; | |
4338 | } | |
4339 | ||
4340 | ||
4341 | /* Loop on all possible base addresses. */ | |
4342 | i = -1; | |
4343 | while ((io[++i] != 0) && (i < NELS(io))) { | |
4344 | struct net_device *dev = alloc_etherdev(sizeof(net_local)); | |
4345 | if (!dev) | |
4346 | break; | |
4347 | if (name[i]) | |
4348 | strcpy(dev->name, name[i]); /* Copy name */ | |
4349 | dev->base_addr = io[i]; | |
4350 | dev->irq = irq[i]; | |
4351 | ||
4352 | /* Check if there is something at this base address. */ | |
4353 | if (wavelan_config(dev, io[i]) == 0) { | |
4354 | if (register_netdev(dev) != 0) { | |
4355 | release_region(dev->base_addr, sizeof(ha_t)); | |
4356 | wavelan_list = wavelan_list->next; | |
4357 | } else { | |
4358 | ret = 0; | |
4359 | continue; | |
4360 | } | |
4361 | } | |
4362 | free_netdev(dev); | |
4363 | } | |
4364 | ||
4365 | #ifdef DEBUG_CONFIG_ERROR | |
4366 | if (!wavelan_list) | |
4367 | printk(KERN_WARNING | |
4368 | "WaveLAN init_module(): no device found\n"); | |
4369 | #endif | |
4370 | ||
4371 | #ifdef DEBUG_MODULE_TRACE | |
4372 | printk(KERN_DEBUG "<- init_module()\n"); | |
4373 | #endif | |
4374 | return ret; | |
4375 | } | |
4376 | ||
4377 | /*------------------------------------------------------------------*/ | |
4378 | /* | |
4379 | * Removal of the module | |
4380 | */ | |
4381 | void cleanup_module(void) | |
4382 | { | |
4383 | #ifdef DEBUG_MODULE_TRACE | |
4384 | printk(KERN_DEBUG "-> cleanup_module()\n"); | |
4385 | #endif | |
4386 | ||
4387 | /* Loop on all devices and release them. */ | |
4388 | while (wavelan_list) { | |
4389 | struct net_device *dev = wavelan_list->dev; | |
4390 | ||
4391 | #ifdef DEBUG_CONFIG_INFO | |
4392 | printk(KERN_DEBUG | |
4393 | "%s: cleanup_module(): removing device at 0x%x\n", | |
4394 | dev->name, (unsigned int) dev); | |
4395 | #endif | |
4396 | unregister_netdev(dev); | |
4397 | ||
4398 | release_region(dev->base_addr, sizeof(ha_t)); | |
4399 | wavelan_list = wavelan_list->next; | |
4400 | ||
4401 | free_netdev(dev); | |
4402 | } | |
4403 | ||
4404 | #ifdef DEBUG_MODULE_TRACE | |
4405 | printk(KERN_DEBUG "<- cleanup_module()\n"); | |
4406 | #endif | |
4407 | } | |
4408 | #endif /* MODULE */ | |
4409 | MODULE_LICENSE("GPL"); | |
4410 | ||
4411 | /* | |
4412 | * This software may only be used and distributed | |
4413 | * according to the terms of the GNU General Public License. | |
4414 | * | |
4415 | * This software was developed as a component of the | |
4416 | * Linux operating system. | |
4417 | * It is based on other device drivers and information | |
4418 | * either written or supplied by: | |
4419 | * Ajay Bakre (bakre@paul.rutgers.edu), | |
4420 | * Donald Becker (becker@scyld.com), | |
4421 | * Loeke Brederveld (Loeke.Brederveld@Utrecht.NCR.com), | |
4422 | * Anders Klemets (klemets@it.kth.se), | |
4423 | * Vladimir V. Kolpakov (w@stier.koenig.ru), | |
4424 | * Marc Meertens (Marc.Meertens@Utrecht.NCR.com), | |
4425 | * Pauline Middelink (middelin@polyware.iaf.nl), | |
4426 | * Robert Morris (rtm@das.harvard.edu), | |
4427 | * Jean Tourrilhes (jt@hplb.hpl.hp.com), | |
4428 | * Girish Welling (welling@paul.rutgers.edu), | |
4429 | * | |
4430 | * Thanks go also to: | |
4431 | * James Ashton (jaa101@syseng.anu.edu.au), | |
4432 | * Alan Cox (alan@redhat.com), | |
4433 | * Allan Creighton (allanc@cs.usyd.edu.au), | |
4434 | * Matthew Geier (matthew@cs.usyd.edu.au), | |
4435 | * Remo di Giovanni (remo@cs.usyd.edu.au), | |
4436 | * Eckhard Grah (grah@wrcs1.urz.uni-wuppertal.de), | |
4437 | * Vipul Gupta (vgupta@cs.binghamton.edu), | |
4438 | * Mark Hagan (mhagan@wtcpost.daytonoh.NCR.COM), | |
4439 | * Tim Nicholson (tim@cs.usyd.edu.au), | |
4440 | * Ian Parkin (ian@cs.usyd.edu.au), | |
4441 | * John Rosenberg (johnr@cs.usyd.edu.au), | |
4442 | * George Rossi (george@phm.gov.au), | |
4443 | * Arthur Scott (arthur@cs.usyd.edu.au), | |
4444 | * Peter Storey, | |
4445 | * for their assistance and advice. | |
4446 | * | |
4447 | * Please send bug reports, updates, comments to: | |
4448 | * | |
4449 | * Bruce Janson Email: bruce@cs.usyd.edu.au | |
4450 | * Basser Department of Computer Science Phone: +61-2-9351-3423 | |
4451 | * University of Sydney, N.S.W., 2006, AUSTRALIA Fax: +61-2-9351-3838 | |
4452 | */ |