Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 105 | static void hacr_write_slow(unsigned long ioaddr, u16 hacr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 245 | static u16 psa_crc(u8 * psa, /* The PSA */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 313 | static void mmc_out(unsigned long ioaddr, u16 o, u8 d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 329 | static void mmc_write(unsigned long ioaddr, u8 o, u8 * b, int n) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 343 | static u8 mmc_in(unsigned long ioaddr, u16 o) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | |
| 434 | /*------------------------------------------------------------------*/ |
| 435 | /* |
| 436 | * Write bytes from the Frequency EEPROM (frequency select cards). |
| 437 | * This is a bit complicated, because the frequency EEPROM has to |
| 438 | * be unprotected and the write enabled. |
| 439 | * Jean II |
| 440 | */ |
| 441 | static void fee_write(unsigned long ioaddr, /* I/O port of the card */ |
| 442 | u16 o, /* destination offset */ |
| 443 | u16 * b, /* data buffer */ |
| 444 | int n) |
| 445 | { /* number of registers */ |
| 446 | b += n; /* Position at the end of the area. */ |
| 447 | |
| 448 | #ifdef EEPROM_IS_PROTECTED /* disabled */ |
| 449 | #ifdef DOESNT_SEEM_TO_WORK /* disabled */ |
| 450 | /* Ask to read the protected register */ |
| 451 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRREAD); |
| 452 | |
| 453 | fee_wait(ioaddr, 10, 100); |
| 454 | |
| 455 | /* Read the protected register. */ |
| 456 | printk("Protected 2: %02X-%02X\n", |
| 457 | mmc_in(ioaddr, mmroff(0, mmr_fee_data_h)), |
| 458 | mmc_in(ioaddr, mmroff(0, mmr_fee_data_l))); |
| 459 | #endif /* DOESNT_SEEM_TO_WORK */ |
| 460 | |
| 461 | /* Enable protected register. */ |
| 462 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN); |
| 463 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PREN); |
| 464 | |
| 465 | fee_wait(ioaddr, 10, 100); |
| 466 | |
| 467 | /* Unprotect area. */ |
| 468 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n); |
| 469 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE); |
| 470 | #ifdef DOESNT_SEEM_TO_WORK /* disabled */ |
| 471 | /* or use: */ |
| 472 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRCLEAR); |
| 473 | #endif /* DOESNT_SEEM_TO_WORK */ |
| 474 | |
| 475 | fee_wait(ioaddr, 10, 100); |
| 476 | #endif /* EEPROM_IS_PROTECTED */ |
| 477 | |
| 478 | /* Write enable. */ |
| 479 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN); |
| 480 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WREN); |
| 481 | |
| 482 | fee_wait(ioaddr, 10, 100); |
| 483 | |
| 484 | /* Write the EEPROM address. */ |
| 485 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n - 1); |
| 486 | |
| 487 | /* Loop on all buffer */ |
| 488 | while (n-- > 0) { |
| 489 | /* Write the value. */ |
| 490 | mmc_out(ioaddr, mmwoff(0, mmw_fee_data_h), (*--b) >> 8); |
| 491 | mmc_out(ioaddr, mmwoff(0, mmw_fee_data_l), *b & 0xFF); |
| 492 | |
| 493 | /* Write the write command. */ |
| 494 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), |
| 495 | MMW_FEE_CTRL_WRITE); |
| 496 | |
| 497 | /* WaveLAN documentation says to wait at least 10 ms for EEBUSY = 0 */ |
| 498 | mdelay(10); |
| 499 | fee_wait(ioaddr, 10, 100); |
| 500 | } |
| 501 | |
| 502 | /* Write disable. */ |
| 503 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_DS); |
| 504 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WDS); |
| 505 | |
| 506 | fee_wait(ioaddr, 10, 100); |
| 507 | |
| 508 | #ifdef EEPROM_IS_PROTECTED /* disabled */ |
| 509 | /* Reprotect EEPROM. */ |
| 510 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x00); |
| 511 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE); |
| 512 | |
| 513 | fee_wait(ioaddr, 10, 100); |
| 514 | #endif /* EEPROM_IS_PROTECTED */ |
| 515 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | |
| 517 | /************************ I82586 SUBROUTINES *************************/ |
| 518 | /* |
| 519 | * Useful subroutines to manage the Ethernet controller |
| 520 | */ |
| 521 | |
| 522 | /*------------------------------------------------------------------*/ |
| 523 | /* |
| 524 | * Read bytes from the on-board RAM. |
| 525 | * Why does inlining this function make it fail? |
| 526 | */ |
| 527 | static /*inline */ void obram_read(unsigned long ioaddr, |
| 528 | u16 o, u8 * b, int n) |
| 529 | { |
| 530 | outw(o, PIOR1(ioaddr)); |
| 531 | insw(PIOP1(ioaddr), (unsigned short *) b, (n + 1) >> 1); |
| 532 | } |
| 533 | |
| 534 | /*------------------------------------------------------------------*/ |
| 535 | /* |
| 536 | * Write bytes to the on-board RAM. |
| 537 | */ |
| 538 | static inline void obram_write(unsigned long ioaddr, u16 o, u8 * b, int n) |
| 539 | { |
| 540 | outw(o, PIOR1(ioaddr)); |
| 541 | outsw(PIOP1(ioaddr), (unsigned short *) b, (n + 1) >> 1); |
| 542 | } |
| 543 | |
| 544 | /*------------------------------------------------------------------*/ |
| 545 | /* |
| 546 | * Acknowledge the reading of the status issued by the i82586. |
| 547 | */ |
| 548 | static void wv_ack(struct net_device * dev) |
| 549 | { |
| 550 | net_local *lp = (net_local *) dev->priv; |
| 551 | unsigned long ioaddr = dev->base_addr; |
| 552 | u16 scb_cs; |
| 553 | int i; |
| 554 | |
| 555 | obram_read(ioaddr, scboff(OFFSET_SCB, scb_status), |
| 556 | (unsigned char *) &scb_cs, sizeof(scb_cs)); |
| 557 | scb_cs &= SCB_ST_INT; |
| 558 | |
| 559 | if (scb_cs == 0) |
| 560 | return; |
| 561 | |
| 562 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_command), |
| 563 | (unsigned char *) &scb_cs, sizeof(scb_cs)); |
| 564 | |
| 565 | set_chan_attn(ioaddr, lp->hacr); |
| 566 | |
| 567 | for (i = 1000; i > 0; i--) { |
| 568 | obram_read(ioaddr, scboff(OFFSET_SCB, scb_command), |
| 569 | (unsigned char *) &scb_cs, sizeof(scb_cs)); |
| 570 | if (scb_cs == 0) |
| 571 | break; |
| 572 | |
| 573 | udelay(10); |
| 574 | } |
| 575 | udelay(100); |
| 576 | |
| 577 | #ifdef DEBUG_CONFIG_ERROR |
| 578 | if (i <= 0) |
| 579 | printk(KERN_INFO |
| 580 | "%s: wv_ack(): board not accepting command.\n", |
| 581 | dev->name); |
| 582 | #endif |
| 583 | } |
| 584 | |
| 585 | /*------------------------------------------------------------------*/ |
| 586 | /* |
| 587 | * Set channel attention bit and busy wait until command has |
| 588 | * completed, then acknowledge completion of the command. |
| 589 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 590 | static int wv_synchronous_cmd(struct net_device * dev, const char *str) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | { |
| 592 | net_local *lp = (net_local *) dev->priv; |
| 593 | unsigned long ioaddr = dev->base_addr; |
| 594 | u16 scb_cmd; |
| 595 | ach_t cb; |
| 596 | int i; |
| 597 | |
| 598 | scb_cmd = SCB_CMD_CUC & SCB_CMD_CUC_GO; |
| 599 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_command), |
| 600 | (unsigned char *) &scb_cmd, sizeof(scb_cmd)); |
| 601 | |
| 602 | set_chan_attn(ioaddr, lp->hacr); |
| 603 | |
| 604 | for (i = 1000; i > 0; i--) { |
| 605 | obram_read(ioaddr, OFFSET_CU, (unsigned char *) &cb, |
| 606 | sizeof(cb)); |
| 607 | if (cb.ac_status & AC_SFLD_C) |
| 608 | break; |
| 609 | |
| 610 | udelay(10); |
| 611 | } |
| 612 | udelay(100); |
| 613 | |
| 614 | if (i <= 0 || !(cb.ac_status & AC_SFLD_OK)) { |
| 615 | #ifdef DEBUG_CONFIG_ERROR |
| 616 | printk(KERN_INFO "%s: %s failed; status = 0x%x\n", |
| 617 | dev->name, str, cb.ac_status); |
| 618 | #endif |
| 619 | #ifdef DEBUG_I82586_SHOW |
| 620 | wv_scb_show(ioaddr); |
| 621 | #endif |
| 622 | return -1; |
| 623 | } |
| 624 | |
| 625 | /* Ack the status */ |
| 626 | wv_ack(dev); |
| 627 | |
| 628 | return 0; |
| 629 | } |
| 630 | |
| 631 | /*------------------------------------------------------------------*/ |
| 632 | /* |
| 633 | * Configuration commands completion interrupt. |
| 634 | * Check if done, and if OK. |
| 635 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 636 | static int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | wv_config_complete(struct net_device * dev, unsigned long ioaddr, net_local * lp) |
| 638 | { |
| 639 | unsigned short mcs_addr; |
| 640 | unsigned short status; |
| 641 | int ret; |
| 642 | |
| 643 | #ifdef DEBUG_INTERRUPT_TRACE |
| 644 | printk(KERN_DEBUG "%s: ->wv_config_complete()\n", dev->name); |
| 645 | #endif |
| 646 | |
| 647 | mcs_addr = lp->tx_first_in_use + sizeof(ac_tx_t) + sizeof(ac_nop_t) |
| 648 | + sizeof(tbd_t) + sizeof(ac_cfg_t) + sizeof(ac_ias_t); |
| 649 | |
| 650 | /* Read the status of the last command (set mc list). */ |
| 651 | obram_read(ioaddr, acoff(mcs_addr, ac_status), |
| 652 | (unsigned char *) &status, sizeof(status)); |
| 653 | |
| 654 | /* If not completed -> exit */ |
| 655 | if ((status & AC_SFLD_C) == 0) |
| 656 | ret = 0; /* Not ready to be scrapped */ |
| 657 | else { |
| 658 | #ifdef DEBUG_CONFIG_ERROR |
| 659 | unsigned short cfg_addr; |
| 660 | unsigned short ias_addr; |
| 661 | |
| 662 | /* Check mc_config command */ |
| 663 | if ((status & AC_SFLD_OK) != AC_SFLD_OK) |
| 664 | printk(KERN_INFO |
| 665 | "%s: wv_config_complete(): set_multicast_address failed; status = 0x%x\n", |
| 666 | dev->name, status); |
| 667 | |
| 668 | /* check ia-config command */ |
| 669 | ias_addr = mcs_addr - sizeof(ac_ias_t); |
| 670 | obram_read(ioaddr, acoff(ias_addr, ac_status), |
| 671 | (unsigned char *) &status, sizeof(status)); |
| 672 | if ((status & AC_SFLD_OK) != AC_SFLD_OK) |
| 673 | printk(KERN_INFO |
| 674 | "%s: wv_config_complete(): set_MAC_address failed; status = 0x%x\n", |
| 675 | dev->name, status); |
| 676 | |
| 677 | /* Check config command. */ |
| 678 | cfg_addr = ias_addr - sizeof(ac_cfg_t); |
| 679 | obram_read(ioaddr, acoff(cfg_addr, ac_status), |
| 680 | (unsigned char *) &status, sizeof(status)); |
| 681 | if ((status & AC_SFLD_OK) != AC_SFLD_OK) |
| 682 | printk(KERN_INFO |
| 683 | "%s: wv_config_complete(): configure failed; status = 0x%x\n", |
| 684 | dev->name, status); |
| 685 | #endif /* DEBUG_CONFIG_ERROR */ |
| 686 | |
| 687 | ret = 1; /* Ready to be scrapped */ |
| 688 | } |
| 689 | |
| 690 | #ifdef DEBUG_INTERRUPT_TRACE |
| 691 | printk(KERN_DEBUG "%s: <-wv_config_complete() - %d\n", dev->name, |
| 692 | ret); |
| 693 | #endif |
| 694 | return ret; |
| 695 | } |
| 696 | |
| 697 | /*------------------------------------------------------------------*/ |
| 698 | /* |
| 699 | * Command completion interrupt. |
| 700 | * Reclaim as many freed tx buffers as we can. |
| 701 | * (called in wavelan_interrupt()). |
| 702 | * Note : the spinlock is already grabbed for us. |
| 703 | */ |
| 704 | static int wv_complete(struct net_device * dev, unsigned long ioaddr, net_local * lp) |
| 705 | { |
| 706 | int nreaped = 0; |
| 707 | |
| 708 | #ifdef DEBUG_INTERRUPT_TRACE |
| 709 | printk(KERN_DEBUG "%s: ->wv_complete()\n", dev->name); |
| 710 | #endif |
| 711 | |
| 712 | /* Loop on all the transmit buffers */ |
| 713 | while (lp->tx_first_in_use != I82586NULL) { |
| 714 | unsigned short tx_status; |
| 715 | |
| 716 | /* Read the first transmit buffer */ |
| 717 | obram_read(ioaddr, acoff(lp->tx_first_in_use, ac_status), |
| 718 | (unsigned char *) &tx_status, |
| 719 | sizeof(tx_status)); |
| 720 | |
| 721 | /* If not completed -> exit */ |
| 722 | if ((tx_status & AC_SFLD_C) == 0) |
| 723 | break; |
| 724 | |
| 725 | /* Hack for reconfiguration */ |
| 726 | if (tx_status == 0xFFFF) |
| 727 | if (!wv_config_complete(dev, ioaddr, lp)) |
| 728 | break; /* Not completed */ |
| 729 | |
| 730 | /* We now remove this buffer */ |
| 731 | nreaped++; |
| 732 | --lp->tx_n_in_use; |
| 733 | |
| 734 | /* |
| 735 | if (lp->tx_n_in_use > 0) |
| 736 | printk("%c", "0123456789abcdefghijk"[lp->tx_n_in_use]); |
| 737 | */ |
| 738 | |
| 739 | /* Was it the last one? */ |
| 740 | if (lp->tx_n_in_use <= 0) |
| 741 | lp->tx_first_in_use = I82586NULL; |
| 742 | else { |
| 743 | /* Next one in the chain */ |
| 744 | lp->tx_first_in_use += TXBLOCKZ; |
| 745 | if (lp->tx_first_in_use >= |
| 746 | OFFSET_CU + |
| 747 | NTXBLOCKS * TXBLOCKZ) lp->tx_first_in_use -= |
| 748 | NTXBLOCKS * TXBLOCKZ; |
| 749 | } |
| 750 | |
| 751 | /* Hack for reconfiguration */ |
| 752 | if (tx_status == 0xFFFF) |
| 753 | continue; |
| 754 | |
| 755 | /* Now, check status of the finished command */ |
| 756 | if (tx_status & AC_SFLD_OK) { |
| 757 | int ncollisions; |
| 758 | |
| 759 | lp->stats.tx_packets++; |
| 760 | ncollisions = tx_status & AC_SFLD_MAXCOL; |
| 761 | lp->stats.collisions += ncollisions; |
| 762 | #ifdef DEBUG_TX_INFO |
| 763 | if (ncollisions > 0) |
| 764 | printk(KERN_DEBUG |
| 765 | "%s: wv_complete(): tx completed after %d collisions.\n", |
| 766 | dev->name, ncollisions); |
| 767 | #endif |
| 768 | } else { |
| 769 | lp->stats.tx_errors++; |
| 770 | if (tx_status & AC_SFLD_S10) { |
| 771 | lp->stats.tx_carrier_errors++; |
| 772 | #ifdef DEBUG_TX_FAIL |
| 773 | printk(KERN_DEBUG |
| 774 | "%s: wv_complete(): tx error: no CS.\n", |
| 775 | dev->name); |
| 776 | #endif |
| 777 | } |
| 778 | if (tx_status & AC_SFLD_S9) { |
| 779 | lp->stats.tx_carrier_errors++; |
| 780 | #ifdef DEBUG_TX_FAIL |
| 781 | printk(KERN_DEBUG |
| 782 | "%s: wv_complete(): tx error: lost CTS.\n", |
| 783 | dev->name); |
| 784 | #endif |
| 785 | } |
| 786 | if (tx_status & AC_SFLD_S8) { |
| 787 | lp->stats.tx_fifo_errors++; |
| 788 | #ifdef DEBUG_TX_FAIL |
| 789 | printk(KERN_DEBUG |
| 790 | "%s: wv_complete(): tx error: slow DMA.\n", |
| 791 | dev->name); |
| 792 | #endif |
| 793 | } |
| 794 | if (tx_status & AC_SFLD_S6) { |
| 795 | lp->stats.tx_heartbeat_errors++; |
| 796 | #ifdef DEBUG_TX_FAIL |
| 797 | printk(KERN_DEBUG |
| 798 | "%s: wv_complete(): tx error: heart beat.\n", |
| 799 | dev->name); |
| 800 | #endif |
| 801 | } |
| 802 | if (tx_status & AC_SFLD_S5) { |
| 803 | lp->stats.tx_aborted_errors++; |
| 804 | #ifdef DEBUG_TX_FAIL |
| 805 | printk(KERN_DEBUG |
| 806 | "%s: wv_complete(): tx error: too many collisions.\n", |
| 807 | dev->name); |
| 808 | #endif |
| 809 | } |
| 810 | } |
| 811 | |
| 812 | #ifdef DEBUG_TX_INFO |
| 813 | printk(KERN_DEBUG |
| 814 | "%s: wv_complete(): tx completed, tx_status 0x%04x\n", |
| 815 | dev->name, tx_status); |
| 816 | #endif |
| 817 | } |
| 818 | |
| 819 | #ifdef DEBUG_INTERRUPT_INFO |
| 820 | if (nreaped > 1) |
| 821 | printk(KERN_DEBUG "%s: wv_complete(): reaped %d\n", |
| 822 | dev->name, nreaped); |
| 823 | #endif |
| 824 | |
| 825 | /* |
| 826 | * Inform upper layers. |
| 827 | */ |
| 828 | if (lp->tx_n_in_use < NTXBLOCKS - 1) { |
| 829 | netif_wake_queue(dev); |
| 830 | } |
| 831 | #ifdef DEBUG_INTERRUPT_TRACE |
| 832 | printk(KERN_DEBUG "%s: <-wv_complete()\n", dev->name); |
| 833 | #endif |
| 834 | return nreaped; |
| 835 | } |
| 836 | |
| 837 | /*------------------------------------------------------------------*/ |
| 838 | /* |
| 839 | * Reconfigure the i82586, or at least ask for it. |
| 840 | * Because wv_82586_config uses a transmission buffer, we must do it |
| 841 | * when we are sure that there is one left, so we do it now |
| 842 | * or in wavelan_packet_xmit() (I can't find any better place, |
| 843 | * wavelan_interrupt is not an option), so you may experience |
| 844 | * delays sometimes. |
| 845 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 846 | static void wv_82586_reconfig(struct net_device * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | { |
| 848 | net_local *lp = (net_local *) dev->priv; |
| 849 | unsigned long flags; |
| 850 | |
| 851 | /* Arm the flag, will be cleard in wv_82586_config() */ |
| 852 | lp->reconfig_82586 = 1; |
| 853 | |
| 854 | /* Check if we can do it now ! */ |
| 855 | if((netif_running(dev)) && !(netif_queue_stopped(dev))) { |
| 856 | spin_lock_irqsave(&lp->spinlock, flags); |
| 857 | /* May fail */ |
| 858 | wv_82586_config(dev); |
| 859 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 860 | } |
| 861 | else { |
| 862 | #ifdef DEBUG_CONFIG_INFO |
| 863 | printk(KERN_DEBUG |
| 864 | "%s: wv_82586_reconfig(): delayed (state = %lX)\n", |
| 865 | dev->name, dev->state); |
| 866 | #endif |
| 867 | } |
| 868 | } |
| 869 | |
| 870 | /********************* DEBUG & INFO SUBROUTINES *********************/ |
| 871 | /* |
| 872 | * This routine is used in the code to show information for debugging. |
| 873 | * Most of the time, it dumps the contents of hardware structures. |
| 874 | */ |
| 875 | |
| 876 | #ifdef DEBUG_PSA_SHOW |
| 877 | /*------------------------------------------------------------------*/ |
| 878 | /* |
| 879 | * Print the formatted contents of the Parameter Storage Area. |
| 880 | */ |
| 881 | static void wv_psa_show(psa_t * p) |
| 882 | { |
| 883 | printk(KERN_DEBUG "##### WaveLAN PSA contents: #####\n"); |
| 884 | printk(KERN_DEBUG "psa_io_base_addr_1: 0x%02X %02X %02X %02X\n", |
| 885 | p->psa_io_base_addr_1, |
| 886 | p->psa_io_base_addr_2, |
| 887 | p->psa_io_base_addr_3, p->psa_io_base_addr_4); |
| 888 | printk(KERN_DEBUG "psa_rem_boot_addr_1: 0x%02X %02X %02X\n", |
| 889 | p->psa_rem_boot_addr_1, |
| 890 | p->psa_rem_boot_addr_2, p->psa_rem_boot_addr_3); |
| 891 | printk(KERN_DEBUG "psa_holi_params: 0x%02x, ", p->psa_holi_params); |
| 892 | printk("psa_int_req_no: %d\n", p->psa_int_req_no); |
| 893 | #ifdef DEBUG_SHOW_UNUSED |
| 894 | printk(KERN_DEBUG |
| 895 | "psa_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X\n", |
| 896 | p->psa_unused0[0], p->psa_unused0[1], p->psa_unused0[2], |
| 897 | p->psa_unused0[3], p->psa_unused0[4], p->psa_unused0[5], |
| 898 | p->psa_unused0[6]); |
| 899 | #endif /* DEBUG_SHOW_UNUSED */ |
| 900 | printk(KERN_DEBUG |
| 901 | "psa_univ_mac_addr[]: %02x:%02x:%02x:%02x:%02x:%02x\n", |
| 902 | p->psa_univ_mac_addr[0], p->psa_univ_mac_addr[1], |
| 903 | p->psa_univ_mac_addr[2], p->psa_univ_mac_addr[3], |
| 904 | p->psa_univ_mac_addr[4], p->psa_univ_mac_addr[5]); |
| 905 | printk(KERN_DEBUG |
| 906 | "psa_local_mac_addr[]: %02x:%02x:%02x:%02x:%02x:%02x\n", |
| 907 | p->psa_local_mac_addr[0], p->psa_local_mac_addr[1], |
| 908 | p->psa_local_mac_addr[2], p->psa_local_mac_addr[3], |
| 909 | p->psa_local_mac_addr[4], p->psa_local_mac_addr[5]); |
| 910 | printk(KERN_DEBUG "psa_univ_local_sel: %d, ", |
| 911 | p->psa_univ_local_sel); |
| 912 | printk("psa_comp_number: %d, ", p->psa_comp_number); |
| 913 | printk("psa_thr_pre_set: 0x%02x\n", p->psa_thr_pre_set); |
| 914 | printk(KERN_DEBUG "psa_feature_select/decay_prm: 0x%02x, ", |
| 915 | p->psa_feature_select); |
| 916 | printk("psa_subband/decay_update_prm: %d\n", p->psa_subband); |
| 917 | printk(KERN_DEBUG "psa_quality_thr: 0x%02x, ", p->psa_quality_thr); |
| 918 | printk("psa_mod_delay: 0x%02x\n", p->psa_mod_delay); |
| 919 | printk(KERN_DEBUG "psa_nwid: 0x%02x%02x, ", p->psa_nwid[0], |
| 920 | p->psa_nwid[1]); |
| 921 | printk("psa_nwid_select: %d\n", p->psa_nwid_select); |
| 922 | printk(KERN_DEBUG "psa_encryption_select: %d, ", |
| 923 | p->psa_encryption_select); |
| 924 | printk |
| 925 | ("psa_encryption_key[]: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", |
| 926 | p->psa_encryption_key[0], p->psa_encryption_key[1], |
| 927 | p->psa_encryption_key[2], p->psa_encryption_key[3], |
| 928 | p->psa_encryption_key[4], p->psa_encryption_key[5], |
| 929 | p->psa_encryption_key[6], p->psa_encryption_key[7]); |
| 930 | printk(KERN_DEBUG "psa_databus_width: %d\n", p->psa_databus_width); |
| 931 | printk(KERN_DEBUG "psa_call_code/auto_squelch: 0x%02x, ", |
| 932 | p->psa_call_code[0]); |
| 933 | printk |
| 934 | ("psa_call_code[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n", |
| 935 | p->psa_call_code[0], p->psa_call_code[1], p->psa_call_code[2], |
| 936 | p->psa_call_code[3], p->psa_call_code[4], p->psa_call_code[5], |
| 937 | p->psa_call_code[6], p->psa_call_code[7]); |
| 938 | #ifdef DEBUG_SHOW_UNUSED |
| 939 | printk(KERN_DEBUG "psa_reserved[]: %02X:%02X:%02X:%02X\n", |
| 940 | p->psa_reserved[0], |
| 941 | p->psa_reserved[1], p->psa_reserved[2], p->psa_reserved[3]); |
| 942 | #endif /* DEBUG_SHOW_UNUSED */ |
| 943 | printk(KERN_DEBUG "psa_conf_status: %d, ", p->psa_conf_status); |
| 944 | printk("psa_crc: 0x%02x%02x, ", p->psa_crc[0], p->psa_crc[1]); |
| 945 | printk("psa_crc_status: 0x%02x\n", p->psa_crc_status); |
| 946 | } /* wv_psa_show */ |
| 947 | #endif /* DEBUG_PSA_SHOW */ |
| 948 | |
| 949 | #ifdef DEBUG_MMC_SHOW |
| 950 | /*------------------------------------------------------------------*/ |
| 951 | /* |
| 952 | * Print the formatted status of the Modem Management Controller. |
| 953 | * This function needs to be completed. |
| 954 | */ |
| 955 | static void wv_mmc_show(struct net_device * dev) |
| 956 | { |
| 957 | unsigned long ioaddr = dev->base_addr; |
| 958 | net_local *lp = (net_local *) dev->priv; |
| 959 | mmr_t m; |
| 960 | |
| 961 | /* Basic check */ |
| 962 | if (hasr_read(ioaddr) & HASR_NO_CLK) { |
| 963 | printk(KERN_WARNING |
| 964 | "%s: wv_mmc_show: modem not connected\n", |
| 965 | dev->name); |
| 966 | return; |
| 967 | } |
| 968 | |
| 969 | /* Read the mmc */ |
| 970 | mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1); |
| 971 | mmc_read(ioaddr, 0, (u8 *) & m, sizeof(m)); |
| 972 | mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0); |
| 973 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 974 | /* Don't forget to update statistics */ |
| 975 | lp->wstats.discard.nwid += |
| 976 | (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 977 | |
| 978 | printk(KERN_DEBUG "##### WaveLAN modem status registers: #####\n"); |
| 979 | #ifdef DEBUG_SHOW_UNUSED |
| 980 | printk(KERN_DEBUG |
| 981 | "mmc_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n", |
| 982 | m.mmr_unused0[0], m.mmr_unused0[1], m.mmr_unused0[2], |
| 983 | m.mmr_unused0[3], m.mmr_unused0[4], m.mmr_unused0[5], |
| 984 | m.mmr_unused0[6], m.mmr_unused0[7]); |
| 985 | #endif /* DEBUG_SHOW_UNUSED */ |
| 986 | printk(KERN_DEBUG "Encryption algorithm: %02X - Status: %02X\n", |
| 987 | m.mmr_des_avail, m.mmr_des_status); |
| 988 | #ifdef DEBUG_SHOW_UNUSED |
| 989 | printk(KERN_DEBUG "mmc_unused1[]: %02X:%02X:%02X:%02X:%02X\n", |
| 990 | m.mmr_unused1[0], |
| 991 | m.mmr_unused1[1], |
| 992 | m.mmr_unused1[2], m.mmr_unused1[3], m.mmr_unused1[4]); |
| 993 | #endif /* DEBUG_SHOW_UNUSED */ |
| 994 | printk(KERN_DEBUG "dce_status: 0x%x [%s%s%s%s]\n", |
| 995 | m.mmr_dce_status, |
| 996 | (m. |
| 997 | mmr_dce_status & MMR_DCE_STATUS_RX_BUSY) ? |
| 998 | "energy detected," : "", |
| 999 | (m. |
| 1000 | mmr_dce_status & MMR_DCE_STATUS_LOOPT_IND) ? |
| 1001 | "loop test indicated," : "", |
| 1002 | (m. |
| 1003 | mmr_dce_status & MMR_DCE_STATUS_TX_BUSY) ? |
| 1004 | "transmitter on," : "", |
| 1005 | (m. |
| 1006 | mmr_dce_status & MMR_DCE_STATUS_JBR_EXPIRED) ? |
| 1007 | "jabber timer expired," : ""); |
| 1008 | printk(KERN_DEBUG "Dsp ID: %02X\n", m.mmr_dsp_id); |
| 1009 | #ifdef DEBUG_SHOW_UNUSED |
| 1010 | printk(KERN_DEBUG "mmc_unused2[]: %02X:%02X\n", |
| 1011 | m.mmr_unused2[0], m.mmr_unused2[1]); |
| 1012 | #endif /* DEBUG_SHOW_UNUSED */ |
| 1013 | printk(KERN_DEBUG "# correct_nwid: %d, # wrong_nwid: %d\n", |
| 1014 | (m.mmr_correct_nwid_h << 8) | m.mmr_correct_nwid_l, |
| 1015 | (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l); |
| 1016 | printk(KERN_DEBUG "thr_pre_set: 0x%x [current signal %s]\n", |
| 1017 | m.mmr_thr_pre_set & MMR_THR_PRE_SET, |
| 1018 | (m. |
| 1019 | mmr_thr_pre_set & MMR_THR_PRE_SET_CUR) ? "above" : |
| 1020 | "below"); |
| 1021 | printk(KERN_DEBUG "signal_lvl: %d [%s], ", |
| 1022 | m.mmr_signal_lvl & MMR_SIGNAL_LVL, |
| 1023 | (m. |
| 1024 | mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) ? "new msg" : |
| 1025 | "no new msg"); |
| 1026 | printk("silence_lvl: %d [%s], ", |
| 1027 | m.mmr_silence_lvl & MMR_SILENCE_LVL, |
| 1028 | (m. |
| 1029 | mmr_silence_lvl & MMR_SILENCE_LVL_VALID) ? "update done" : |
| 1030 | "no new update"); |
| 1031 | printk("sgnl_qual: 0x%x [%s]\n", m.mmr_sgnl_qual & MMR_SGNL_QUAL, |
| 1032 | (m. |
| 1033 | mmr_sgnl_qual & MMR_SGNL_QUAL_ANT) ? "Antenna 1" : |
| 1034 | "Antenna 0"); |
| 1035 | #ifdef DEBUG_SHOW_UNUSED |
| 1036 | printk(KERN_DEBUG "netw_id_l: %x\n", m.mmr_netw_id_l); |
| 1037 | #endif /* DEBUG_SHOW_UNUSED */ |
| 1038 | } /* wv_mmc_show */ |
| 1039 | #endif /* DEBUG_MMC_SHOW */ |
| 1040 | |
| 1041 | #ifdef DEBUG_I82586_SHOW |
| 1042 | /*------------------------------------------------------------------*/ |
| 1043 | /* |
| 1044 | * Print the last block of the i82586 memory. |
| 1045 | */ |
| 1046 | static void wv_scb_show(unsigned long ioaddr) |
| 1047 | { |
| 1048 | scb_t scb; |
| 1049 | |
| 1050 | obram_read(ioaddr, OFFSET_SCB, (unsigned char *) &scb, |
| 1051 | sizeof(scb)); |
| 1052 | |
| 1053 | printk(KERN_DEBUG "##### WaveLAN system control block: #####\n"); |
| 1054 | |
| 1055 | printk(KERN_DEBUG "status: "); |
| 1056 | printk("stat 0x%x[%s%s%s%s] ", |
| 1057 | (scb. |
| 1058 | scb_status & (SCB_ST_CX | SCB_ST_FR | SCB_ST_CNA | |
| 1059 | SCB_ST_RNR)) >> 12, |
| 1060 | (scb. |
| 1061 | scb_status & SCB_ST_CX) ? "command completion interrupt," : |
| 1062 | "", (scb.scb_status & SCB_ST_FR) ? "frame received," : "", |
| 1063 | (scb. |
| 1064 | scb_status & SCB_ST_CNA) ? "command unit not active," : "", |
| 1065 | (scb. |
| 1066 | scb_status & SCB_ST_RNR) ? "receiving unit not ready," : |
| 1067 | ""); |
| 1068 | printk("cus 0x%x[%s%s%s] ", (scb.scb_status & SCB_ST_CUS) >> 8, |
| 1069 | ((scb.scb_status & SCB_ST_CUS) == |
| 1070 | SCB_ST_CUS_IDLE) ? "idle" : "", |
| 1071 | ((scb.scb_status & SCB_ST_CUS) == |
| 1072 | SCB_ST_CUS_SUSP) ? "suspended" : "", |
| 1073 | ((scb.scb_status & SCB_ST_CUS) == |
| 1074 | SCB_ST_CUS_ACTV) ? "active" : ""); |
| 1075 | printk("rus 0x%x[%s%s%s%s]\n", (scb.scb_status & SCB_ST_RUS) >> 4, |
| 1076 | ((scb.scb_status & SCB_ST_RUS) == |
| 1077 | SCB_ST_RUS_IDLE) ? "idle" : "", |
| 1078 | ((scb.scb_status & SCB_ST_RUS) == |
| 1079 | SCB_ST_RUS_SUSP) ? "suspended" : "", |
| 1080 | ((scb.scb_status & SCB_ST_RUS) == |
| 1081 | SCB_ST_RUS_NRES) ? "no resources" : "", |
| 1082 | ((scb.scb_status & SCB_ST_RUS) == |
| 1083 | SCB_ST_RUS_RDY) ? "ready" : ""); |
| 1084 | |
| 1085 | printk(KERN_DEBUG "command: "); |
| 1086 | printk("ack 0x%x[%s%s%s%s] ", |
| 1087 | (scb. |
| 1088 | scb_command & (SCB_CMD_ACK_CX | SCB_CMD_ACK_FR | |
| 1089 | SCB_CMD_ACK_CNA | SCB_CMD_ACK_RNR)) >> 12, |
| 1090 | (scb. |
| 1091 | scb_command & SCB_CMD_ACK_CX) ? "ack cmd completion," : "", |
| 1092 | (scb. |
| 1093 | scb_command & SCB_CMD_ACK_FR) ? "ack frame received," : "", |
| 1094 | (scb. |
| 1095 | scb_command & SCB_CMD_ACK_CNA) ? "ack CU not active," : "", |
| 1096 | (scb. |
| 1097 | scb_command & SCB_CMD_ACK_RNR) ? "ack RU not ready," : ""); |
| 1098 | printk("cuc 0x%x[%s%s%s%s%s] ", |
| 1099 | (scb.scb_command & SCB_CMD_CUC) >> 8, |
| 1100 | ((scb.scb_command & SCB_CMD_CUC) == |
| 1101 | SCB_CMD_CUC_NOP) ? "nop" : "", |
| 1102 | ((scb.scb_command & SCB_CMD_CUC) == |
| 1103 | SCB_CMD_CUC_GO) ? "start cbl_offset" : "", |
| 1104 | ((scb.scb_command & SCB_CMD_CUC) == |
| 1105 | SCB_CMD_CUC_RES) ? "resume execution" : "", |
| 1106 | ((scb.scb_command & SCB_CMD_CUC) == |
| 1107 | SCB_CMD_CUC_SUS) ? "suspend execution" : "", |
| 1108 | ((scb.scb_command & SCB_CMD_CUC) == |
| 1109 | SCB_CMD_CUC_ABT) ? "abort execution" : ""); |
| 1110 | printk("ruc 0x%x[%s%s%s%s%s]\n", |
| 1111 | (scb.scb_command & SCB_CMD_RUC) >> 4, |
| 1112 | ((scb.scb_command & SCB_CMD_RUC) == |
| 1113 | SCB_CMD_RUC_NOP) ? "nop" : "", |
| 1114 | ((scb.scb_command & SCB_CMD_RUC) == |
| 1115 | SCB_CMD_RUC_GO) ? "start rfa_offset" : "", |
| 1116 | ((scb.scb_command & SCB_CMD_RUC) == |
| 1117 | SCB_CMD_RUC_RES) ? "resume reception" : "", |
| 1118 | ((scb.scb_command & SCB_CMD_RUC) == |
| 1119 | SCB_CMD_RUC_SUS) ? "suspend reception" : "", |
| 1120 | ((scb.scb_command & SCB_CMD_RUC) == |
| 1121 | SCB_CMD_RUC_ABT) ? "abort reception" : ""); |
| 1122 | |
| 1123 | printk(KERN_DEBUG "cbl_offset 0x%x ", scb.scb_cbl_offset); |
| 1124 | printk("rfa_offset 0x%x\n", scb.scb_rfa_offset); |
| 1125 | |
| 1126 | printk(KERN_DEBUG "crcerrs %d ", scb.scb_crcerrs); |
| 1127 | printk("alnerrs %d ", scb.scb_alnerrs); |
| 1128 | printk("rscerrs %d ", scb.scb_rscerrs); |
| 1129 | printk("ovrnerrs %d\n", scb.scb_ovrnerrs); |
| 1130 | } |
| 1131 | |
| 1132 | /*------------------------------------------------------------------*/ |
| 1133 | /* |
| 1134 | * Print the formatted status of the i82586's receive unit. |
| 1135 | */ |
| 1136 | static void wv_ru_show(struct net_device * dev) |
| 1137 | { |
| 1138 | /* net_local *lp = (net_local *) dev->priv; */ |
| 1139 | |
| 1140 | printk(KERN_DEBUG |
| 1141 | "##### WaveLAN i82586 receiver unit status: #####\n"); |
| 1142 | printk(KERN_DEBUG "ru:"); |
| 1143 | /* |
| 1144 | * Not implemented yet |
| 1145 | */ |
| 1146 | printk("\n"); |
| 1147 | } /* wv_ru_show */ |
| 1148 | |
| 1149 | /*------------------------------------------------------------------*/ |
| 1150 | /* |
| 1151 | * Display info about one control block of the i82586 memory. |
| 1152 | */ |
| 1153 | static void wv_cu_show_one(struct net_device * dev, net_local * lp, int i, u16 p) |
| 1154 | { |
| 1155 | unsigned long ioaddr; |
| 1156 | ac_tx_t actx; |
| 1157 | |
| 1158 | ioaddr = dev->base_addr; |
| 1159 | |
| 1160 | printk("%d: 0x%x:", i, p); |
| 1161 | |
| 1162 | obram_read(ioaddr, p, (unsigned char *) &actx, sizeof(actx)); |
| 1163 | printk(" status=0x%x,", actx.tx_h.ac_status); |
| 1164 | printk(" command=0x%x,", actx.tx_h.ac_command); |
| 1165 | |
| 1166 | /* |
| 1167 | { |
| 1168 | tbd_t tbd; |
| 1169 | |
| 1170 | obram_read(ioaddr, actx.tx_tbd_offset, (unsigned char *)&tbd, sizeof(tbd)); |
| 1171 | printk(" tbd_status=0x%x,", tbd.tbd_status); |
| 1172 | } |
| 1173 | */ |
| 1174 | |
| 1175 | printk("|"); |
| 1176 | } |
| 1177 | |
| 1178 | /*------------------------------------------------------------------*/ |
| 1179 | /* |
| 1180 | * Print status of the command unit of the i82586. |
| 1181 | */ |
| 1182 | static void wv_cu_show(struct net_device * dev) |
| 1183 | { |
| 1184 | net_local *lp = (net_local *) dev->priv; |
| 1185 | unsigned int i; |
| 1186 | u16 p; |
| 1187 | |
| 1188 | printk(KERN_DEBUG |
| 1189 | "##### WaveLAN i82586 command unit status: #####\n"); |
| 1190 | |
| 1191 | printk(KERN_DEBUG); |
| 1192 | for (i = 0, p = lp->tx_first_in_use; i < NTXBLOCKS; i++) { |
| 1193 | wv_cu_show_one(dev, lp, i, p); |
| 1194 | |
| 1195 | p += TXBLOCKZ; |
| 1196 | if (p >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ) |
| 1197 | p -= NTXBLOCKS * TXBLOCKZ; |
| 1198 | } |
| 1199 | printk("\n"); |
| 1200 | } |
| 1201 | #endif /* DEBUG_I82586_SHOW */ |
| 1202 | |
| 1203 | #ifdef DEBUG_DEVICE_SHOW |
| 1204 | /*------------------------------------------------------------------*/ |
| 1205 | /* |
| 1206 | * Print the formatted status of the WaveLAN PCMCIA device driver. |
| 1207 | */ |
| 1208 | static void wv_dev_show(struct net_device * dev) |
| 1209 | { |
| 1210 | printk(KERN_DEBUG "dev:"); |
| 1211 | printk(" state=%lX,", dev->state); |
| 1212 | printk(" trans_start=%ld,", dev->trans_start); |
| 1213 | printk(" flags=0x%x,", dev->flags); |
| 1214 | printk("\n"); |
| 1215 | } /* wv_dev_show */ |
| 1216 | |
| 1217 | /*------------------------------------------------------------------*/ |
| 1218 | /* |
| 1219 | * Print the formatted status of the WaveLAN PCMCIA device driver's |
| 1220 | * private information. |
| 1221 | */ |
| 1222 | static void wv_local_show(struct net_device * dev) |
| 1223 | { |
| 1224 | net_local *lp; |
| 1225 | |
| 1226 | lp = (net_local *) dev->priv; |
| 1227 | |
| 1228 | printk(KERN_DEBUG "local:"); |
| 1229 | printk(" tx_n_in_use=%d,", lp->tx_n_in_use); |
| 1230 | printk(" hacr=0x%x,", lp->hacr); |
| 1231 | printk(" rx_head=0x%x,", lp->rx_head); |
| 1232 | printk(" rx_last=0x%x,", lp->rx_last); |
| 1233 | printk(" tx_first_free=0x%x,", lp->tx_first_free); |
| 1234 | printk(" tx_first_in_use=0x%x,", lp->tx_first_in_use); |
| 1235 | printk("\n"); |
| 1236 | } /* wv_local_show */ |
| 1237 | #endif /* DEBUG_DEVICE_SHOW */ |
| 1238 | |
| 1239 | #if defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO) |
| 1240 | /*------------------------------------------------------------------*/ |
| 1241 | /* |
| 1242 | * Dump packet header (and content if necessary) on the screen |
| 1243 | */ |
| 1244 | static inline void wv_packet_info(u8 * p, /* Packet to dump */ |
| 1245 | int length, /* Length of the packet */ |
| 1246 | char *msg1, /* Name of the device */ |
| 1247 | char *msg2) |
| 1248 | { /* Name of the function */ |
| 1249 | int i; |
| 1250 | int maxi; |
| 1251 | |
| 1252 | printk(KERN_DEBUG |
| 1253 | "%s: %s(): dest %02X:%02X:%02X:%02X:%02X:%02X, length %d\n", |
| 1254 | msg1, msg2, p[0], p[1], p[2], p[3], p[4], p[5], length); |
| 1255 | printk(KERN_DEBUG |
| 1256 | "%s: %s(): src %02X:%02X:%02X:%02X:%02X:%02X, type 0x%02X%02X\n", |
| 1257 | msg1, msg2, p[6], p[7], p[8], p[9], p[10], p[11], p[12], |
| 1258 | p[13]); |
| 1259 | |
| 1260 | #ifdef DEBUG_PACKET_DUMP |
| 1261 | |
| 1262 | printk(KERN_DEBUG "data=\""); |
| 1263 | |
| 1264 | if ((maxi = length) > DEBUG_PACKET_DUMP) |
| 1265 | maxi = DEBUG_PACKET_DUMP; |
| 1266 | for (i = 14; i < maxi; i++) |
| 1267 | if (p[i] >= ' ' && p[i] <= '~') |
| 1268 | printk(" %c", p[i]); |
| 1269 | else |
| 1270 | printk("%02X", p[i]); |
| 1271 | if (maxi < length) |
| 1272 | printk(".."); |
| 1273 | printk("\"\n"); |
| 1274 | printk(KERN_DEBUG "\n"); |
| 1275 | #endif /* DEBUG_PACKET_DUMP */ |
| 1276 | } |
| 1277 | #endif /* defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO) */ |
| 1278 | |
| 1279 | /*------------------------------------------------------------------*/ |
| 1280 | /* |
| 1281 | * This is the information which is displayed by the driver at startup. |
| 1282 | * There are lots of flags for configuring it to your liking. |
| 1283 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 1284 | static void wv_init_info(struct net_device * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1285 | { |
| 1286 | short ioaddr = dev->base_addr; |
| 1287 | net_local *lp = (net_local *) dev->priv; |
| 1288 | psa_t psa; |
| 1289 | int i; |
| 1290 | |
| 1291 | /* Read the parameter storage area */ |
| 1292 | psa_read(ioaddr, lp->hacr, 0, (unsigned char *) &psa, sizeof(psa)); |
| 1293 | |
| 1294 | #ifdef DEBUG_PSA_SHOW |
| 1295 | wv_psa_show(&psa); |
| 1296 | #endif |
| 1297 | #ifdef DEBUG_MMC_SHOW |
| 1298 | wv_mmc_show(dev); |
| 1299 | #endif |
| 1300 | #ifdef DEBUG_I82586_SHOW |
| 1301 | wv_cu_show(dev); |
| 1302 | #endif |
| 1303 | |
| 1304 | #ifdef DEBUG_BASIC_SHOW |
| 1305 | /* Now, let's go for the basic stuff. */ |
| 1306 | printk(KERN_NOTICE "%s: WaveLAN at %#x,", dev->name, ioaddr); |
| 1307 | for (i = 0; i < WAVELAN_ADDR_SIZE; i++) |
| 1308 | printk("%s%02X", (i == 0) ? " " : ":", dev->dev_addr[i]); |
| 1309 | printk(", IRQ %d", dev->irq); |
| 1310 | |
| 1311 | /* Print current network ID. */ |
| 1312 | if (psa.psa_nwid_select) |
| 1313 | printk(", nwid 0x%02X-%02X", psa.psa_nwid[0], |
| 1314 | psa.psa_nwid[1]); |
| 1315 | else |
| 1316 | printk(", nwid off"); |
| 1317 | |
| 1318 | /* If 2.00 card */ |
| 1319 | if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) & |
| 1320 | (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) { |
| 1321 | unsigned short freq; |
| 1322 | |
| 1323 | /* Ask the EEPROM to read the frequency from the first area. */ |
| 1324 | fee_read(ioaddr, 0x00, &freq, 1); |
| 1325 | |
| 1326 | /* Print frequency */ |
| 1327 | printk(", 2.00, %ld", (freq >> 6) + 2400L); |
| 1328 | |
| 1329 | /* Hack! */ |
| 1330 | if (freq & 0x20) |
| 1331 | printk(".5"); |
| 1332 | } else { |
| 1333 | printk(", PC"); |
| 1334 | switch (psa.psa_comp_number) { |
| 1335 | case PSA_COMP_PC_AT_915: |
| 1336 | case PSA_COMP_PC_AT_2400: |
| 1337 | printk("-AT"); |
| 1338 | break; |
| 1339 | case PSA_COMP_PC_MC_915: |
| 1340 | case PSA_COMP_PC_MC_2400: |
| 1341 | printk("-MC"); |
| 1342 | break; |
| 1343 | case PSA_COMP_PCMCIA_915: |
| 1344 | printk("MCIA"); |
| 1345 | break; |
| 1346 | default: |
| 1347 | printk("?"); |
| 1348 | } |
| 1349 | printk(", "); |
| 1350 | switch (psa.psa_subband) { |
| 1351 | case PSA_SUBBAND_915: |
| 1352 | printk("915"); |
| 1353 | break; |
| 1354 | case PSA_SUBBAND_2425: |
| 1355 | printk("2425"); |
| 1356 | break; |
| 1357 | case PSA_SUBBAND_2460: |
| 1358 | printk("2460"); |
| 1359 | break; |
| 1360 | case PSA_SUBBAND_2484: |
| 1361 | printk("2484"); |
| 1362 | break; |
| 1363 | case PSA_SUBBAND_2430_5: |
| 1364 | printk("2430.5"); |
| 1365 | break; |
| 1366 | default: |
| 1367 | printk("?"); |
| 1368 | } |
| 1369 | } |
| 1370 | |
| 1371 | printk(" MHz\n"); |
| 1372 | #endif /* DEBUG_BASIC_SHOW */ |
| 1373 | |
| 1374 | #ifdef DEBUG_VERSION_SHOW |
| 1375 | /* Print version information */ |
| 1376 | printk(KERN_NOTICE "%s", version); |
| 1377 | #endif |
| 1378 | } /* wv_init_info */ |
| 1379 | |
| 1380 | /********************* IOCTL, STATS & RECONFIG *********************/ |
| 1381 | /* |
| 1382 | * We found here routines that are called by Linux on different |
| 1383 | * occasions after the configuration and not for transmitting data |
| 1384 | * These may be called when the user use ifconfig, /proc/net/dev |
| 1385 | * or wireless extensions |
| 1386 | */ |
| 1387 | |
| 1388 | /*------------------------------------------------------------------*/ |
| 1389 | /* |
| 1390 | * Get the current Ethernet statistics. This may be called with the |
| 1391 | * card open or closed. |
| 1392 | * Used when the user read /proc/net/dev |
| 1393 | */ |
| 1394 | static en_stats *wavelan_get_stats(struct net_device * dev) |
| 1395 | { |
| 1396 | #ifdef DEBUG_IOCTL_TRACE |
| 1397 | printk(KERN_DEBUG "%s: <>wavelan_get_stats()\n", dev->name); |
| 1398 | #endif |
| 1399 | |
| 1400 | return (&((net_local *) dev->priv)->stats); |
| 1401 | } |
| 1402 | |
| 1403 | /*------------------------------------------------------------------*/ |
| 1404 | /* |
| 1405 | * Set or clear the multicast filter for this adaptor. |
| 1406 | * num_addrs == -1 Promiscuous mode, receive all packets |
| 1407 | * num_addrs == 0 Normal mode, clear multicast list |
| 1408 | * num_addrs > 0 Multicast mode, receive normal and MC packets, |
| 1409 | * and do best-effort filtering. |
| 1410 | */ |
| 1411 | static void wavelan_set_multicast_list(struct net_device * dev) |
| 1412 | { |
| 1413 | net_local *lp = (net_local *) dev->priv; |
| 1414 | |
| 1415 | #ifdef DEBUG_IOCTL_TRACE |
| 1416 | printk(KERN_DEBUG "%s: ->wavelan_set_multicast_list()\n", |
| 1417 | dev->name); |
| 1418 | #endif |
| 1419 | |
| 1420 | #ifdef DEBUG_IOCTL_INFO |
| 1421 | printk(KERN_DEBUG |
| 1422 | "%s: wavelan_set_multicast_list(): setting Rx mode %02X to %d addresses.\n", |
| 1423 | dev->name, dev->flags, dev->mc_count); |
| 1424 | #endif |
| 1425 | |
| 1426 | /* Are we asking for promiscuous mode, |
| 1427 | * or all multicast addresses (we don't have that!) |
| 1428 | * or too many multicast addresses for the hardware filter? */ |
| 1429 | if ((dev->flags & IFF_PROMISC) || |
| 1430 | (dev->flags & IFF_ALLMULTI) || |
| 1431 | (dev->mc_count > I82586_MAX_MULTICAST_ADDRESSES)) { |
| 1432 | /* |
| 1433 | * Enable promiscuous mode: receive all packets. |
| 1434 | */ |
| 1435 | if (!lp->promiscuous) { |
| 1436 | lp->promiscuous = 1; |
| 1437 | lp->mc_count = 0; |
| 1438 | |
| 1439 | wv_82586_reconfig(dev); |
| 1440 | |
| 1441 | /* Tell the kernel that we are doing a really bad job. */ |
| 1442 | dev->flags |= IFF_PROMISC; |
| 1443 | } |
| 1444 | } else |
| 1445 | /* Are there multicast addresses to send? */ |
| 1446 | if (dev->mc_list != (struct dev_mc_list *) NULL) { |
| 1447 | /* |
| 1448 | * Disable promiscuous mode, but receive all packets |
| 1449 | * in multicast list |
| 1450 | */ |
| 1451 | #ifdef MULTICAST_AVOID |
| 1452 | if (lp->promiscuous || (dev->mc_count != lp->mc_count)) |
| 1453 | #endif |
| 1454 | { |
| 1455 | lp->promiscuous = 0; |
| 1456 | lp->mc_count = dev->mc_count; |
| 1457 | |
| 1458 | wv_82586_reconfig(dev); |
| 1459 | } |
| 1460 | } else { |
| 1461 | /* |
| 1462 | * Switch to normal mode: disable promiscuous mode and |
| 1463 | * clear the multicast list. |
| 1464 | */ |
| 1465 | if (lp->promiscuous || lp->mc_count == 0) { |
| 1466 | lp->promiscuous = 0; |
| 1467 | lp->mc_count = 0; |
| 1468 | |
| 1469 | wv_82586_reconfig(dev); |
| 1470 | } |
| 1471 | } |
| 1472 | #ifdef DEBUG_IOCTL_TRACE |
| 1473 | printk(KERN_DEBUG "%s: <-wavelan_set_multicast_list()\n", |
| 1474 | dev->name); |
| 1475 | #endif |
| 1476 | } |
| 1477 | |
| 1478 | /*------------------------------------------------------------------*/ |
| 1479 | /* |
| 1480 | * This function doesn't exist. |
| 1481 | * (Note : it was a nice way to test the reconfigure stuff...) |
| 1482 | */ |
| 1483 | #ifdef SET_MAC_ADDRESS |
| 1484 | static int wavelan_set_mac_address(struct net_device * dev, void *addr) |
| 1485 | { |
| 1486 | struct sockaddr *mac = addr; |
| 1487 | |
| 1488 | /* Copy the address. */ |
| 1489 | memcpy(dev->dev_addr, mac->sa_data, WAVELAN_ADDR_SIZE); |
| 1490 | |
| 1491 | /* Reconfigure the beast. */ |
| 1492 | wv_82586_reconfig(dev); |
| 1493 | |
| 1494 | return 0; |
| 1495 | } |
| 1496 | #endif /* SET_MAC_ADDRESS */ |
| 1497 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1498 | |
| 1499 | /*------------------------------------------------------------------*/ |
| 1500 | /* |
| 1501 | * Frequency setting (for hardware capable of it) |
| 1502 | * It's a bit complicated and you don't really want to look into it. |
| 1503 | * (called in wavelan_ioctl) |
| 1504 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 1505 | static int wv_set_frequency(unsigned long ioaddr, /* I/O port of the card */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1506 | iw_freq * frequency) |
| 1507 | { |
| 1508 | const int BAND_NUM = 10; /* Number of bands */ |
| 1509 | long freq = 0L; /* offset to 2.4 GHz in .5 MHz */ |
| 1510 | #ifdef DEBUG_IOCTL_INFO |
| 1511 | int i; |
| 1512 | #endif |
| 1513 | |
| 1514 | /* Setting by frequency */ |
| 1515 | /* Theoretically, you may set any frequency between |
| 1516 | * the two limits with a 0.5 MHz precision. In practice, |
| 1517 | * I don't want you to have trouble with local regulations. |
| 1518 | */ |
| 1519 | if ((frequency->e == 1) && |
| 1520 | (frequency->m >= (int) 2.412e8) |
| 1521 | && (frequency->m <= (int) 2.487e8)) { |
| 1522 | freq = ((frequency->m / 10000) - 24000L) / 5; |
| 1523 | } |
| 1524 | |
| 1525 | /* Setting by channel (same as wfreqsel) */ |
| 1526 | /* Warning: each channel is 22 MHz wide, so some of the channels |
| 1527 | * will interfere. */ |
| 1528 | if ((frequency->e == 0) && (frequency->m < BAND_NUM)) { |
| 1529 | /* Get frequency offset. */ |
| 1530 | freq = channel_bands[frequency->m] >> 1; |
| 1531 | } |
| 1532 | |
| 1533 | /* Verify that the frequency is allowed. */ |
| 1534 | if (freq != 0L) { |
| 1535 | u16 table[10]; /* Authorized frequency table */ |
| 1536 | |
| 1537 | /* Read the frequency table. */ |
| 1538 | fee_read(ioaddr, 0x71, table, 10); |
| 1539 | |
| 1540 | #ifdef DEBUG_IOCTL_INFO |
| 1541 | printk(KERN_DEBUG "Frequency table: "); |
| 1542 | for (i = 0; i < 10; i++) { |
| 1543 | printk(" %04X", table[i]); |
| 1544 | } |
| 1545 | printk("\n"); |
| 1546 | #endif |
| 1547 | |
| 1548 | /* Look in the table to see whether the frequency is allowed. */ |
| 1549 | if (!(table[9 - ((freq - 24) / 16)] & |
| 1550 | (1 << ((freq - 24) % 16)))) return -EINVAL; /* not allowed */ |
| 1551 | } else |
| 1552 | return -EINVAL; |
| 1553 | |
| 1554 | /* if we get a usable frequency */ |
| 1555 | if (freq != 0L) { |
| 1556 | unsigned short area[16]; |
| 1557 | unsigned short dac[2]; |
| 1558 | unsigned short area_verify[16]; |
| 1559 | unsigned short dac_verify[2]; |
| 1560 | /* Corresponding gain (in the power adjust value table) |
| 1561 | * See AT&T WaveLAN Data Manual, REF 407-024689/E, page 3-8 |
| 1562 | * and WCIN062D.DOC, page 6.2.9. */ |
| 1563 | unsigned short power_limit[] = { 40, 80, 120, 160, 0 }; |
| 1564 | int power_band = 0; /* Selected band */ |
| 1565 | unsigned short power_adjust; /* Correct value */ |
| 1566 | |
| 1567 | /* Search for the gain. */ |
| 1568 | power_band = 0; |
| 1569 | while ((freq > power_limit[power_band]) && |
| 1570 | (power_limit[++power_band] != 0)); |
| 1571 | |
| 1572 | /* Read the first area. */ |
| 1573 | fee_read(ioaddr, 0x00, area, 16); |
| 1574 | |
| 1575 | /* Read the DAC. */ |
| 1576 | fee_read(ioaddr, 0x60, dac, 2); |
| 1577 | |
| 1578 | /* Read the new power adjust value. */ |
| 1579 | fee_read(ioaddr, 0x6B - (power_band >> 1), &power_adjust, |
| 1580 | 1); |
| 1581 | if (power_band & 0x1) |
| 1582 | power_adjust >>= 8; |
| 1583 | else |
| 1584 | power_adjust &= 0xFF; |
| 1585 | |
| 1586 | #ifdef DEBUG_IOCTL_INFO |
| 1587 | printk(KERN_DEBUG "WaveLAN EEPROM Area 1: "); |
| 1588 | for (i = 0; i < 16; i++) { |
| 1589 | printk(" %04X", area[i]); |
| 1590 | } |
| 1591 | printk("\n"); |
| 1592 | |
| 1593 | printk(KERN_DEBUG "WaveLAN EEPROM DAC: %04X %04X\n", |
| 1594 | dac[0], dac[1]); |
| 1595 | #endif |
| 1596 | |
| 1597 | /* Frequency offset (for info only) */ |
| 1598 | area[0] = ((freq << 5) & 0xFFE0) | (area[0] & 0x1F); |
| 1599 | |
| 1600 | /* Receiver Principle main divider coefficient */ |
| 1601 | area[3] = (freq >> 1) + 2400L - 352L; |
| 1602 | area[2] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF); |
| 1603 | |
| 1604 | /* Transmitter Main divider coefficient */ |
| 1605 | area[13] = (freq >> 1) + 2400L; |
| 1606 | area[12] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF); |
| 1607 | |
| 1608 | /* Other parts of the area are flags, bit streams or unused. */ |
| 1609 | |
| 1610 | /* Set the value in the DAC. */ |
| 1611 | dac[1] = ((power_adjust >> 1) & 0x7F) | (dac[1] & 0xFF80); |
| 1612 | dac[0] = ((power_adjust & 0x1) << 4) | (dac[0] & 0xFFEF); |
| 1613 | |
| 1614 | /* Write the first area. */ |
| 1615 | fee_write(ioaddr, 0x00, area, 16); |
| 1616 | |
| 1617 | /* Write the DAC. */ |
| 1618 | fee_write(ioaddr, 0x60, dac, 2); |
| 1619 | |
| 1620 | /* We now should verify here that the writing of the EEPROM went OK. */ |
| 1621 | |
| 1622 | /* Reread the first area. */ |
| 1623 | fee_read(ioaddr, 0x00, area_verify, 16); |
| 1624 | |
| 1625 | /* Reread the DAC. */ |
| 1626 | fee_read(ioaddr, 0x60, dac_verify, 2); |
| 1627 | |
| 1628 | /* Compare. */ |
| 1629 | if (memcmp(area, area_verify, 16 * 2) || |
| 1630 | memcmp(dac, dac_verify, 2 * 2)) { |
| 1631 | #ifdef DEBUG_IOCTL_ERROR |
| 1632 | printk(KERN_INFO |
| 1633 | "WaveLAN: wv_set_frequency: unable to write new frequency to EEPROM(?).\n"); |
| 1634 | #endif |
| 1635 | return -EOPNOTSUPP; |
| 1636 | } |
| 1637 | |
| 1638 | /* We must download the frequency parameters to the |
| 1639 | * synthesizers (from the EEPROM - area 1) |
| 1640 | * Note: as the EEPROM is automatically decremented, we set the end |
| 1641 | * if the area... */ |
| 1642 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x0F); |
| 1643 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), |
| 1644 | MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD); |
| 1645 | |
| 1646 | /* Wait until the download is finished. */ |
| 1647 | fee_wait(ioaddr, 100, 100); |
| 1648 | |
| 1649 | /* We must now download the power adjust value (gain) to |
| 1650 | * the synthesizers (from the EEPROM - area 7 - DAC). */ |
| 1651 | mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x61); |
| 1652 | mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), |
| 1653 | MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD); |
| 1654 | |
| 1655 | /* Wait for the download to finish. */ |
| 1656 | fee_wait(ioaddr, 100, 100); |
| 1657 | |
| 1658 | #ifdef DEBUG_IOCTL_INFO |
| 1659 | /* Verification of what we have done */ |
| 1660 | |
| 1661 | printk(KERN_DEBUG "WaveLAN EEPROM Area 1: "); |
| 1662 | for (i = 0; i < 16; i++) { |
| 1663 | printk(" %04X", area_verify[i]); |
| 1664 | } |
| 1665 | printk("\n"); |
| 1666 | |
| 1667 | printk(KERN_DEBUG "WaveLAN EEPROM DAC: %04X %04X\n", |
| 1668 | dac_verify[0], dac_verify[1]); |
| 1669 | #endif |
| 1670 | |
| 1671 | return 0; |
| 1672 | } else |
| 1673 | return -EINVAL; /* Bah, never get there... */ |
| 1674 | } |
| 1675 | |
| 1676 | /*------------------------------------------------------------------*/ |
| 1677 | /* |
| 1678 | * Give the list of available frequencies. |
| 1679 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 1680 | static int wv_frequency_list(unsigned long ioaddr, /* I/O port of the card */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | iw_freq * list, /* List of frequencies to fill */ |
| 1682 | int max) |
| 1683 | { /* Maximum number of frequencies */ |
| 1684 | u16 table[10]; /* Authorized frequency table */ |
| 1685 | long freq = 0L; /* offset to 2.4 GHz in .5 MHz + 12 MHz */ |
| 1686 | int i; /* index in the table */ |
| 1687 | int c = 0; /* Channel number */ |
| 1688 | |
| 1689 | /* Read the frequency table. */ |
| 1690 | fee_read(ioaddr, 0x71 /* frequency table */ , table, 10); |
| 1691 | |
| 1692 | /* Check all frequencies. */ |
| 1693 | i = 0; |
| 1694 | for (freq = 0; freq < 150; freq++) |
| 1695 | /* Look in the table if the frequency is allowed */ |
| 1696 | if (table[9 - (freq / 16)] & (1 << (freq % 16))) { |
| 1697 | /* Compute approximate channel number */ |
Eric Sesterhenn | a192491 | 2006-06-21 16:40:24 +0200 | [diff] [blame] | 1698 | while ((c < NELS(channel_bands)) && |
| 1699 | (((channel_bands[c] >> 1) - 24) < freq)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1700 | c++; |
| 1701 | list[i].i = c; /* Set the list index */ |
| 1702 | |
| 1703 | /* put in the list */ |
| 1704 | list[i].m = (((freq + 24) * 5) + 24000L) * 10000; |
| 1705 | list[i++].e = 1; |
| 1706 | |
| 1707 | /* Check number. */ |
| 1708 | if (i >= max) |
| 1709 | return (i); |
| 1710 | } |
| 1711 | |
| 1712 | return (i); |
| 1713 | } |
| 1714 | |
| 1715 | #ifdef IW_WIRELESS_SPY |
| 1716 | /*------------------------------------------------------------------*/ |
| 1717 | /* |
| 1718 | * Gather wireless spy statistics: for each packet, compare the source |
| 1719 | * address with our list, and if they match, get the statistics. |
| 1720 | * Sorry, but this function really needs the wireless extensions. |
| 1721 | */ |
| 1722 | static inline void wl_spy_gather(struct net_device * dev, |
| 1723 | u8 * mac, /* MAC address */ |
| 1724 | u8 * stats) /* Statistics to gather */ |
| 1725 | { |
| 1726 | struct iw_quality wstats; |
| 1727 | |
| 1728 | wstats.qual = stats[2] & MMR_SGNL_QUAL; |
| 1729 | wstats.level = stats[0] & MMR_SIGNAL_LVL; |
| 1730 | wstats.noise = stats[1] & MMR_SILENCE_LVL; |
| 1731 | wstats.updated = 0x7; |
| 1732 | |
| 1733 | /* Update spy records */ |
| 1734 | wireless_spy_update(dev, mac, &wstats); |
| 1735 | } |
| 1736 | #endif /* IW_WIRELESS_SPY */ |
| 1737 | |
| 1738 | #ifdef HISTOGRAM |
| 1739 | /*------------------------------------------------------------------*/ |
| 1740 | /* |
| 1741 | * This function calculates a histogram of the signal level. |
| 1742 | * As the noise is quite constant, it's like doing it on the SNR. |
| 1743 | * We have defined a set of interval (lp->his_range), and each time |
| 1744 | * the level goes in that interval, we increment the count (lp->his_sum). |
| 1745 | * With this histogram you may detect if one WaveLAN is really weak, |
| 1746 | * or you may also calculate the mean and standard deviation of the level. |
| 1747 | */ |
| 1748 | static inline void wl_his_gather(struct net_device * dev, u8 * stats) |
| 1749 | { /* Statistics to gather */ |
| 1750 | net_local *lp = (net_local *) dev->priv; |
| 1751 | u8 level = stats[0] & MMR_SIGNAL_LVL; |
| 1752 | int i; |
| 1753 | |
| 1754 | /* Find the correct interval. */ |
| 1755 | i = 0; |
| 1756 | while ((i < (lp->his_number - 1)) |
| 1757 | && (level >= lp->his_range[i++])); |
| 1758 | |
| 1759 | /* Increment interval counter. */ |
| 1760 | (lp->his_sum[i])++; |
| 1761 | } |
| 1762 | #endif /* HISTOGRAM */ |
| 1763 | |
| 1764 | /*------------------------------------------------------------------*/ |
| 1765 | /* |
| 1766 | * Wireless Handler : get protocol name |
| 1767 | */ |
| 1768 | static int wavelan_get_name(struct net_device *dev, |
| 1769 | struct iw_request_info *info, |
| 1770 | union iwreq_data *wrqu, |
| 1771 | char *extra) |
| 1772 | { |
| 1773 | strcpy(wrqu->name, "WaveLAN"); |
| 1774 | return 0; |
| 1775 | } |
| 1776 | |
| 1777 | /*------------------------------------------------------------------*/ |
| 1778 | /* |
| 1779 | * Wireless Handler : set NWID |
| 1780 | */ |
| 1781 | static int wavelan_set_nwid(struct net_device *dev, |
| 1782 | struct iw_request_info *info, |
| 1783 | union iwreq_data *wrqu, |
| 1784 | char *extra) |
| 1785 | { |
| 1786 | unsigned long ioaddr = dev->base_addr; |
| 1787 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ |
| 1788 | psa_t psa; |
| 1789 | mm_t m; |
| 1790 | unsigned long flags; |
| 1791 | int ret = 0; |
| 1792 | |
| 1793 | /* Disable interrupts and save flags. */ |
| 1794 | spin_lock_irqsave(&lp->spinlock, flags); |
| 1795 | |
| 1796 | /* Set NWID in WaveLAN. */ |
| 1797 | if (!wrqu->nwid.disabled) { |
| 1798 | /* Set NWID in psa */ |
| 1799 | psa.psa_nwid[0] = (wrqu->nwid.value & 0xFF00) >> 8; |
| 1800 | psa.psa_nwid[1] = wrqu->nwid.value & 0xFF; |
| 1801 | psa.psa_nwid_select = 0x01; |
| 1802 | psa_write(ioaddr, lp->hacr, |
| 1803 | (char *) psa.psa_nwid - (char *) &psa, |
| 1804 | (unsigned char *) psa.psa_nwid, 3); |
| 1805 | |
| 1806 | /* Set NWID in mmc. */ |
| 1807 | m.w.mmw_netw_id_l = psa.psa_nwid[1]; |
| 1808 | m.w.mmw_netw_id_h = psa.psa_nwid[0]; |
| 1809 | mmc_write(ioaddr, |
| 1810 | (char *) &m.w.mmw_netw_id_l - |
| 1811 | (char *) &m, |
| 1812 | (unsigned char *) &m.w.mmw_netw_id_l, 2); |
| 1813 | mmc_out(ioaddr, mmwoff(0, mmw_loopt_sel), 0x00); |
| 1814 | } else { |
| 1815 | /* Disable NWID in the psa. */ |
| 1816 | psa.psa_nwid_select = 0x00; |
| 1817 | psa_write(ioaddr, lp->hacr, |
| 1818 | (char *) &psa.psa_nwid_select - |
| 1819 | (char *) &psa, |
| 1820 | (unsigned char *) &psa.psa_nwid_select, |
| 1821 | 1); |
| 1822 | |
| 1823 | /* Disable NWID in the mmc (no filtering). */ |
| 1824 | mmc_out(ioaddr, mmwoff(0, mmw_loopt_sel), |
| 1825 | MMW_LOOPT_SEL_DIS_NWID); |
| 1826 | } |
| 1827 | /* update the Wavelan checksum */ |
| 1828 | update_psa_checksum(dev, ioaddr, lp->hacr); |
| 1829 | |
| 1830 | /* Enable interrupts and restore flags. */ |
| 1831 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 1832 | |
| 1833 | return ret; |
| 1834 | } |
| 1835 | |
| 1836 | /*------------------------------------------------------------------*/ |
| 1837 | /* |
| 1838 | * Wireless Handler : get NWID |
| 1839 | */ |
| 1840 | static int wavelan_get_nwid(struct net_device *dev, |
| 1841 | struct iw_request_info *info, |
| 1842 | union iwreq_data *wrqu, |
| 1843 | char *extra) |
| 1844 | { |
| 1845 | unsigned long ioaddr = dev->base_addr; |
| 1846 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ |
| 1847 | psa_t psa; |
| 1848 | unsigned long flags; |
| 1849 | int ret = 0; |
| 1850 | |
| 1851 | /* Disable interrupts and save flags. */ |
| 1852 | spin_lock_irqsave(&lp->spinlock, flags); |
| 1853 | |
| 1854 | /* Read the NWID. */ |
| 1855 | psa_read(ioaddr, lp->hacr, |
| 1856 | (char *) psa.psa_nwid - (char *) &psa, |
| 1857 | (unsigned char *) psa.psa_nwid, 3); |
| 1858 | wrqu->nwid.value = (psa.psa_nwid[0] << 8) + psa.psa_nwid[1]; |
| 1859 | wrqu->nwid.disabled = !(psa.psa_nwid_select); |
| 1860 | wrqu->nwid.fixed = 1; /* Superfluous */ |
| 1861 | |
| 1862 | /* Enable interrupts and restore flags. */ |
| 1863 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 1864 | |
| 1865 | return ret; |
| 1866 | } |
| 1867 | |
| 1868 | /*------------------------------------------------------------------*/ |
| 1869 | /* |
| 1870 | * Wireless Handler : set frequency |
| 1871 | */ |
| 1872 | static int wavelan_set_freq(struct net_device *dev, |
| 1873 | struct iw_request_info *info, |
| 1874 | union iwreq_data *wrqu, |
| 1875 | char *extra) |
| 1876 | { |
| 1877 | unsigned long ioaddr = dev->base_addr; |
| 1878 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ |
| 1879 | unsigned long flags; |
| 1880 | int ret; |
| 1881 | |
| 1882 | /* Disable interrupts and save flags. */ |
| 1883 | spin_lock_irqsave(&lp->spinlock, flags); |
| 1884 | |
| 1885 | /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */ |
| 1886 | if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) & |
| 1887 | (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) |
| 1888 | ret = wv_set_frequency(ioaddr, &(wrqu->freq)); |
| 1889 | else |
| 1890 | ret = -EOPNOTSUPP; |
| 1891 | |
| 1892 | /* Enable interrupts and restore flags. */ |
| 1893 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 1894 | |
| 1895 | return ret; |
| 1896 | } |
| 1897 | |
| 1898 | /*------------------------------------------------------------------*/ |
| 1899 | /* |
| 1900 | * Wireless Handler : get frequency |
| 1901 | */ |
| 1902 | static int wavelan_get_freq(struct net_device *dev, |
| 1903 | struct iw_request_info *info, |
| 1904 | union iwreq_data *wrqu, |
| 1905 | char *extra) |
| 1906 | { |
| 1907 | unsigned long ioaddr = dev->base_addr; |
| 1908 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ |
| 1909 | psa_t psa; |
| 1910 | unsigned long flags; |
| 1911 | int ret = 0; |
| 1912 | |
| 1913 | /* Disable interrupts and save flags. */ |
| 1914 | spin_lock_irqsave(&lp->spinlock, flags); |
| 1915 | |
| 1916 | /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). |
| 1917 | * Does it work for everybody, especially old cards? */ |
| 1918 | if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) & |
| 1919 | (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) { |
| 1920 | unsigned short freq; |
| 1921 | |
| 1922 | /* Ask the EEPROM to read the frequency from the first area. */ |
| 1923 | fee_read(ioaddr, 0x00, &freq, 1); |
| 1924 | wrqu->freq.m = ((freq >> 5) * 5 + 24000L) * 10000; |
| 1925 | wrqu->freq.e = 1; |
| 1926 | } else { |
| 1927 | psa_read(ioaddr, lp->hacr, |
| 1928 | (char *) &psa.psa_subband - (char *) &psa, |
| 1929 | (unsigned char *) &psa.psa_subband, 1); |
| 1930 | |
| 1931 | if (psa.psa_subband <= 4) { |
| 1932 | wrqu->freq.m = fixed_bands[psa.psa_subband]; |
| 1933 | wrqu->freq.e = (psa.psa_subband != 0); |
| 1934 | } else |
| 1935 | ret = -EOPNOTSUPP; |
| 1936 | } |
| 1937 | |
| 1938 | /* Enable interrupts and restore flags. */ |
| 1939 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 1940 | |
| 1941 | return ret; |
| 1942 | } |
| 1943 | |
| 1944 | /*------------------------------------------------------------------*/ |
| 1945 | /* |
| 1946 | * Wireless Handler : set level threshold |
| 1947 | */ |
| 1948 | static int wavelan_set_sens(struct net_device *dev, |
| 1949 | struct iw_request_info *info, |
| 1950 | union iwreq_data *wrqu, |
| 1951 | char *extra) |
| 1952 | { |
| 1953 | unsigned long ioaddr = dev->base_addr; |
| 1954 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ |
| 1955 | psa_t psa; |
| 1956 | unsigned long flags; |
| 1957 | int ret = 0; |
| 1958 | |
| 1959 | /* Disable interrupts and save flags. */ |
| 1960 | spin_lock_irqsave(&lp->spinlock, flags); |
| 1961 | |
| 1962 | /* Set the level threshold. */ |
| 1963 | /* We should complain loudly if wrqu->sens.fixed = 0, because we |
| 1964 | * can't set auto mode... */ |
| 1965 | psa.psa_thr_pre_set = wrqu->sens.value & 0x3F; |
| 1966 | psa_write(ioaddr, lp->hacr, |
| 1967 | (char *) &psa.psa_thr_pre_set - (char *) &psa, |
| 1968 | (unsigned char *) &psa.psa_thr_pre_set, 1); |
| 1969 | /* update the Wavelan checksum */ |
| 1970 | update_psa_checksum(dev, ioaddr, lp->hacr); |
| 1971 | mmc_out(ioaddr, mmwoff(0, mmw_thr_pre_set), |
| 1972 | psa.psa_thr_pre_set); |
| 1973 | |
| 1974 | /* Enable interrupts and restore flags. */ |
| 1975 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 1976 | |
| 1977 | return ret; |
| 1978 | } |
| 1979 | |
| 1980 | /*------------------------------------------------------------------*/ |
| 1981 | /* |
| 1982 | * Wireless Handler : get level threshold |
| 1983 | */ |
| 1984 | static int wavelan_get_sens(struct net_device *dev, |
| 1985 | struct iw_request_info *info, |
| 1986 | union iwreq_data *wrqu, |
| 1987 | char *extra) |
| 1988 | { |
| 1989 | unsigned long ioaddr = dev->base_addr; |
| 1990 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ |
| 1991 | psa_t psa; |
| 1992 | unsigned long flags; |
| 1993 | int ret = 0; |
| 1994 | |
| 1995 | /* Disable interrupts and save flags. */ |
| 1996 | spin_lock_irqsave(&lp->spinlock, flags); |
| 1997 | |
| 1998 | /* Read the level threshold. */ |
| 1999 | psa_read(ioaddr, lp->hacr, |
| 2000 | (char *) &psa.psa_thr_pre_set - (char *) &psa, |
| 2001 | (unsigned char *) &psa.psa_thr_pre_set, 1); |
| 2002 | wrqu->sens.value = psa.psa_thr_pre_set & 0x3F; |
| 2003 | wrqu->sens.fixed = 1; |
| 2004 | |
| 2005 | /* Enable interrupts and restore flags. */ |
| 2006 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 2007 | |
| 2008 | return ret; |
| 2009 | } |
| 2010 | |
| 2011 | /*------------------------------------------------------------------*/ |
| 2012 | /* |
| 2013 | * Wireless Handler : set encryption key |
| 2014 | */ |
| 2015 | static int wavelan_set_encode(struct net_device *dev, |
| 2016 | struct iw_request_info *info, |
| 2017 | union iwreq_data *wrqu, |
| 2018 | char *extra) |
| 2019 | { |
| 2020 | unsigned long ioaddr = dev->base_addr; |
| 2021 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ |
| 2022 | unsigned long flags; |
| 2023 | psa_t psa; |
| 2024 | int ret = 0; |
| 2025 | |
| 2026 | /* Disable interrupts and save flags. */ |
| 2027 | spin_lock_irqsave(&lp->spinlock, flags); |
| 2028 | |
| 2029 | /* Check if capable of encryption */ |
| 2030 | if (!mmc_encr(ioaddr)) { |
| 2031 | ret = -EOPNOTSUPP; |
| 2032 | } |
| 2033 | |
| 2034 | /* Check the size of the key */ |
| 2035 | if((wrqu->encoding.length != 8) && (wrqu->encoding.length != 0)) { |
| 2036 | ret = -EINVAL; |
| 2037 | } |
| 2038 | |
| 2039 | if(!ret) { |
| 2040 | /* Basic checking... */ |
| 2041 | if (wrqu->encoding.length == 8) { |
| 2042 | /* Copy the key in the driver */ |
| 2043 | memcpy(psa.psa_encryption_key, extra, |
| 2044 | wrqu->encoding.length); |
| 2045 | psa.psa_encryption_select = 1; |
| 2046 | |
| 2047 | psa_write(ioaddr, lp->hacr, |
| 2048 | (char *) &psa.psa_encryption_select - |
| 2049 | (char *) &psa, |
| 2050 | (unsigned char *) &psa. |
| 2051 | psa_encryption_select, 8 + 1); |
| 2052 | |
| 2053 | mmc_out(ioaddr, mmwoff(0, mmw_encr_enable), |
| 2054 | MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE); |
| 2055 | mmc_write(ioaddr, mmwoff(0, mmw_encr_key), |
| 2056 | (unsigned char *) &psa. |
| 2057 | psa_encryption_key, 8); |
| 2058 | } |
| 2059 | |
| 2060 | /* disable encryption */ |
| 2061 | if (wrqu->encoding.flags & IW_ENCODE_DISABLED) { |
| 2062 | psa.psa_encryption_select = 0; |
| 2063 | psa_write(ioaddr, lp->hacr, |
| 2064 | (char *) &psa.psa_encryption_select - |
| 2065 | (char *) &psa, |
| 2066 | (unsigned char *) &psa. |
| 2067 | psa_encryption_select, 1); |
| 2068 | |
| 2069 | mmc_out(ioaddr, mmwoff(0, mmw_encr_enable), 0); |
| 2070 | } |
| 2071 | /* update the Wavelan checksum */ |
| 2072 | update_psa_checksum(dev, ioaddr, lp->hacr); |
| 2073 | } |
| 2074 | |
| 2075 | /* Enable interrupts and restore flags. */ |
| 2076 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 2077 | |
| 2078 | return ret; |
| 2079 | } |
| 2080 | |
| 2081 | /*------------------------------------------------------------------*/ |
| 2082 | /* |
| 2083 | * Wireless Handler : get encryption key |
| 2084 | */ |
| 2085 | static int wavelan_get_encode(struct net_device *dev, |
| 2086 | struct iw_request_info *info, |
| 2087 | union iwreq_data *wrqu, |
| 2088 | char *extra) |
| 2089 | { |
| 2090 | unsigned long ioaddr = dev->base_addr; |
| 2091 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ |
| 2092 | psa_t psa; |
| 2093 | unsigned long flags; |
| 2094 | int ret = 0; |
| 2095 | |
| 2096 | /* Disable interrupts and save flags. */ |
| 2097 | spin_lock_irqsave(&lp->spinlock, flags); |
| 2098 | |
| 2099 | /* Check if encryption is available */ |
| 2100 | if (!mmc_encr(ioaddr)) { |
| 2101 | ret = -EOPNOTSUPP; |
| 2102 | } else { |
| 2103 | /* Read the encryption key */ |
| 2104 | psa_read(ioaddr, lp->hacr, |
| 2105 | (char *) &psa.psa_encryption_select - |
| 2106 | (char *) &psa, |
| 2107 | (unsigned char *) &psa. |
| 2108 | psa_encryption_select, 1 + 8); |
| 2109 | |
| 2110 | /* encryption is enabled ? */ |
| 2111 | if (psa.psa_encryption_select) |
| 2112 | wrqu->encoding.flags = IW_ENCODE_ENABLED; |
| 2113 | else |
| 2114 | wrqu->encoding.flags = IW_ENCODE_DISABLED; |
| 2115 | wrqu->encoding.flags |= mmc_encr(ioaddr); |
| 2116 | |
| 2117 | /* Copy the key to the user buffer */ |
| 2118 | wrqu->encoding.length = 8; |
| 2119 | memcpy(extra, psa.psa_encryption_key, wrqu->encoding.length); |
| 2120 | } |
| 2121 | |
| 2122 | /* Enable interrupts and restore flags. */ |
| 2123 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 2124 | |
| 2125 | return ret; |
| 2126 | } |
| 2127 | |
| 2128 | /*------------------------------------------------------------------*/ |
| 2129 | /* |
| 2130 | * Wireless Handler : get range info |
| 2131 | */ |
| 2132 | static int wavelan_get_range(struct net_device *dev, |
| 2133 | struct iw_request_info *info, |
| 2134 | union iwreq_data *wrqu, |
| 2135 | char *extra) |
| 2136 | { |
| 2137 | unsigned long ioaddr = dev->base_addr; |
| 2138 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ |
| 2139 | struct iw_range *range = (struct iw_range *) extra; |
| 2140 | unsigned long flags; |
| 2141 | int ret = 0; |
| 2142 | |
| 2143 | /* Set the length (very important for backward compatibility) */ |
| 2144 | wrqu->data.length = sizeof(struct iw_range); |
| 2145 | |
| 2146 | /* Set all the info we don't care or don't know about to zero */ |
| 2147 | memset(range, 0, sizeof(struct iw_range)); |
| 2148 | |
| 2149 | /* Set the Wireless Extension versions */ |
| 2150 | range->we_version_compiled = WIRELESS_EXT; |
| 2151 | range->we_version_source = 9; |
| 2152 | |
| 2153 | /* Set information in the range struct. */ |
| 2154 | range->throughput = 1.6 * 1000 * 1000; /* don't argue on this ! */ |
| 2155 | range->min_nwid = 0x0000; |
| 2156 | range->max_nwid = 0xFFFF; |
| 2157 | |
| 2158 | range->sensitivity = 0x3F; |
| 2159 | range->max_qual.qual = MMR_SGNL_QUAL; |
| 2160 | range->max_qual.level = MMR_SIGNAL_LVL; |
| 2161 | range->max_qual.noise = MMR_SILENCE_LVL; |
| 2162 | range->avg_qual.qual = MMR_SGNL_QUAL; /* Always max */ |
| 2163 | /* Need to get better values for those two */ |
| 2164 | range->avg_qual.level = 30; |
| 2165 | range->avg_qual.noise = 8; |
| 2166 | |
| 2167 | range->num_bitrates = 1; |
| 2168 | range->bitrate[0] = 2000000; /* 2 Mb/s */ |
| 2169 | |
| 2170 | /* Event capability (kernel + driver) */ |
| 2171 | range->event_capa[0] = (IW_EVENT_CAPA_MASK(0x8B02) | |
| 2172 | IW_EVENT_CAPA_MASK(0x8B04)); |
| 2173 | range->event_capa[1] = IW_EVENT_CAPA_K_1; |
| 2174 | |
| 2175 | /* Disable interrupts and save flags. */ |
| 2176 | spin_lock_irqsave(&lp->spinlock, flags); |
| 2177 | |
| 2178 | /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */ |
| 2179 | if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) & |
| 2180 | (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) { |
| 2181 | range->num_channels = 10; |
| 2182 | range->num_frequency = wv_frequency_list(ioaddr, range->freq, |
| 2183 | IW_MAX_FREQUENCIES); |
| 2184 | } else |
| 2185 | range->num_channels = range->num_frequency = 0; |
| 2186 | |
| 2187 | /* Encryption supported ? */ |
| 2188 | if (mmc_encr(ioaddr)) { |
| 2189 | range->encoding_size[0] = 8; /* DES = 64 bits key */ |
| 2190 | range->num_encoding_sizes = 1; |
| 2191 | range->max_encoding_tokens = 1; /* Only one key possible */ |
| 2192 | } else { |
| 2193 | range->num_encoding_sizes = 0; |
| 2194 | range->max_encoding_tokens = 0; |
| 2195 | } |
| 2196 | |
| 2197 | /* Enable interrupts and restore flags. */ |
| 2198 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 2199 | |
| 2200 | return ret; |
| 2201 | } |
| 2202 | |
| 2203 | /*------------------------------------------------------------------*/ |
| 2204 | /* |
| 2205 | * Wireless Private Handler : set quality threshold |
| 2206 | */ |
| 2207 | static int wavelan_set_qthr(struct net_device *dev, |
| 2208 | struct iw_request_info *info, |
| 2209 | union iwreq_data *wrqu, |
| 2210 | char *extra) |
| 2211 | { |
| 2212 | unsigned long ioaddr = dev->base_addr; |
| 2213 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ |
| 2214 | psa_t psa; |
| 2215 | unsigned long flags; |
| 2216 | |
| 2217 | /* Disable interrupts and save flags. */ |
| 2218 | spin_lock_irqsave(&lp->spinlock, flags); |
| 2219 | |
| 2220 | psa.psa_quality_thr = *(extra) & 0x0F; |
| 2221 | psa_write(ioaddr, lp->hacr, |
| 2222 | (char *) &psa.psa_quality_thr - (char *) &psa, |
| 2223 | (unsigned char *) &psa.psa_quality_thr, 1); |
| 2224 | /* update the Wavelan checksum */ |
| 2225 | update_psa_checksum(dev, ioaddr, lp->hacr); |
| 2226 | mmc_out(ioaddr, mmwoff(0, mmw_quality_thr), |
| 2227 | psa.psa_quality_thr); |
| 2228 | |
| 2229 | /* Enable interrupts and restore flags. */ |
| 2230 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 2231 | |
| 2232 | return 0; |
| 2233 | } |
| 2234 | |
| 2235 | /*------------------------------------------------------------------*/ |
| 2236 | /* |
| 2237 | * Wireless Private Handler : get quality threshold |
| 2238 | */ |
| 2239 | static int wavelan_get_qthr(struct net_device *dev, |
| 2240 | struct iw_request_info *info, |
| 2241 | union iwreq_data *wrqu, |
| 2242 | char *extra) |
| 2243 | { |
| 2244 | unsigned long ioaddr = dev->base_addr; |
| 2245 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ |
| 2246 | psa_t psa; |
| 2247 | unsigned long flags; |
| 2248 | |
| 2249 | /* Disable interrupts and save flags. */ |
| 2250 | spin_lock_irqsave(&lp->spinlock, flags); |
| 2251 | |
| 2252 | psa_read(ioaddr, lp->hacr, |
| 2253 | (char *) &psa.psa_quality_thr - (char *) &psa, |
| 2254 | (unsigned char *) &psa.psa_quality_thr, 1); |
| 2255 | *(extra) = psa.psa_quality_thr & 0x0F; |
| 2256 | |
| 2257 | /* Enable interrupts and restore flags. */ |
| 2258 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 2259 | |
| 2260 | return 0; |
| 2261 | } |
| 2262 | |
| 2263 | #ifdef HISTOGRAM |
| 2264 | /*------------------------------------------------------------------*/ |
| 2265 | /* |
| 2266 | * Wireless Private Handler : set histogram |
| 2267 | */ |
| 2268 | static int wavelan_set_histo(struct net_device *dev, |
| 2269 | struct iw_request_info *info, |
| 2270 | union iwreq_data *wrqu, |
| 2271 | char *extra) |
| 2272 | { |
| 2273 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ |
| 2274 | |
| 2275 | /* Check the number of intervals. */ |
| 2276 | if (wrqu->data.length > 16) { |
| 2277 | return(-E2BIG); |
| 2278 | } |
| 2279 | |
| 2280 | /* Disable histo while we copy the addresses. |
| 2281 | * As we don't disable interrupts, we need to do this */ |
| 2282 | lp->his_number = 0; |
| 2283 | |
| 2284 | /* Are there ranges to copy? */ |
| 2285 | if (wrqu->data.length > 0) { |
| 2286 | /* Copy interval ranges to the driver */ |
| 2287 | memcpy(lp->his_range, extra, wrqu->data.length); |
| 2288 | |
| 2289 | { |
| 2290 | int i; |
| 2291 | printk(KERN_DEBUG "Histo :"); |
| 2292 | for(i = 0; i < wrqu->data.length; i++) |
| 2293 | printk(" %d", lp->his_range[i]); |
| 2294 | printk("\n"); |
| 2295 | } |
| 2296 | |
| 2297 | /* Reset result structure. */ |
| 2298 | memset(lp->his_sum, 0x00, sizeof(long) * 16); |
| 2299 | } |
| 2300 | |
| 2301 | /* Now we can set the number of ranges */ |
| 2302 | lp->his_number = wrqu->data.length; |
| 2303 | |
| 2304 | return(0); |
| 2305 | } |
| 2306 | |
| 2307 | /*------------------------------------------------------------------*/ |
| 2308 | /* |
| 2309 | * Wireless Private Handler : get histogram |
| 2310 | */ |
| 2311 | static int wavelan_get_histo(struct net_device *dev, |
| 2312 | struct iw_request_info *info, |
| 2313 | union iwreq_data *wrqu, |
| 2314 | char *extra) |
| 2315 | { |
| 2316 | net_local *lp = (net_local *) dev->priv; /* lp is not unused */ |
| 2317 | |
| 2318 | /* Set the number of intervals. */ |
| 2319 | wrqu->data.length = lp->his_number; |
| 2320 | |
| 2321 | /* Give back the distribution statistics */ |
| 2322 | if(lp->his_number > 0) |
| 2323 | memcpy(extra, lp->his_sum, sizeof(long) * lp->his_number); |
| 2324 | |
| 2325 | return(0); |
| 2326 | } |
| 2327 | #endif /* HISTOGRAM */ |
| 2328 | |
| 2329 | /*------------------------------------------------------------------*/ |
| 2330 | /* |
| 2331 | * Structures to export the Wireless Handlers |
| 2332 | */ |
| 2333 | |
| 2334 | static const iw_handler wavelan_handler[] = |
| 2335 | { |
| 2336 | NULL, /* SIOCSIWNAME */ |
| 2337 | wavelan_get_name, /* SIOCGIWNAME */ |
| 2338 | wavelan_set_nwid, /* SIOCSIWNWID */ |
| 2339 | wavelan_get_nwid, /* SIOCGIWNWID */ |
| 2340 | wavelan_set_freq, /* SIOCSIWFREQ */ |
| 2341 | wavelan_get_freq, /* SIOCGIWFREQ */ |
| 2342 | NULL, /* SIOCSIWMODE */ |
| 2343 | NULL, /* SIOCGIWMODE */ |
| 2344 | wavelan_set_sens, /* SIOCSIWSENS */ |
| 2345 | wavelan_get_sens, /* SIOCGIWSENS */ |
| 2346 | NULL, /* SIOCSIWRANGE */ |
| 2347 | wavelan_get_range, /* SIOCGIWRANGE */ |
| 2348 | NULL, /* SIOCSIWPRIV */ |
| 2349 | NULL, /* SIOCGIWPRIV */ |
| 2350 | NULL, /* SIOCSIWSTATS */ |
| 2351 | NULL, /* SIOCGIWSTATS */ |
| 2352 | iw_handler_set_spy, /* SIOCSIWSPY */ |
| 2353 | iw_handler_get_spy, /* SIOCGIWSPY */ |
| 2354 | iw_handler_set_thrspy, /* SIOCSIWTHRSPY */ |
| 2355 | iw_handler_get_thrspy, /* SIOCGIWTHRSPY */ |
| 2356 | NULL, /* SIOCSIWAP */ |
| 2357 | NULL, /* SIOCGIWAP */ |
| 2358 | NULL, /* -- hole -- */ |
| 2359 | NULL, /* SIOCGIWAPLIST */ |
| 2360 | NULL, /* -- hole -- */ |
| 2361 | NULL, /* -- hole -- */ |
| 2362 | NULL, /* SIOCSIWESSID */ |
| 2363 | NULL, /* SIOCGIWESSID */ |
| 2364 | NULL, /* SIOCSIWNICKN */ |
| 2365 | NULL, /* SIOCGIWNICKN */ |
| 2366 | NULL, /* -- hole -- */ |
| 2367 | NULL, /* -- hole -- */ |
| 2368 | NULL, /* SIOCSIWRATE */ |
| 2369 | NULL, /* SIOCGIWRATE */ |
| 2370 | NULL, /* SIOCSIWRTS */ |
| 2371 | NULL, /* SIOCGIWRTS */ |
| 2372 | NULL, /* SIOCSIWFRAG */ |
| 2373 | NULL, /* SIOCGIWFRAG */ |
| 2374 | NULL, /* SIOCSIWTXPOW */ |
| 2375 | NULL, /* SIOCGIWTXPOW */ |
| 2376 | NULL, /* SIOCSIWRETRY */ |
| 2377 | NULL, /* SIOCGIWRETRY */ |
| 2378 | /* Bummer ! Why those are only at the end ??? */ |
| 2379 | wavelan_set_encode, /* SIOCSIWENCODE */ |
| 2380 | wavelan_get_encode, /* SIOCGIWENCODE */ |
| 2381 | }; |
| 2382 | |
| 2383 | static const iw_handler wavelan_private_handler[] = |
| 2384 | { |
| 2385 | wavelan_set_qthr, /* SIOCIWFIRSTPRIV */ |
| 2386 | wavelan_get_qthr, /* SIOCIWFIRSTPRIV + 1 */ |
| 2387 | #ifdef HISTOGRAM |
| 2388 | wavelan_set_histo, /* SIOCIWFIRSTPRIV + 2 */ |
| 2389 | wavelan_get_histo, /* SIOCIWFIRSTPRIV + 3 */ |
| 2390 | #endif /* HISTOGRAM */ |
| 2391 | }; |
| 2392 | |
| 2393 | static const struct iw_priv_args wavelan_private_args[] = { |
| 2394 | /*{ cmd, set_args, get_args, name } */ |
| 2395 | { SIOCSIPQTHR, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, 0, "setqualthr" }, |
| 2396 | { SIOCGIPQTHR, 0, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1, "getqualthr" }, |
| 2397 | { SIOCSIPHISTO, IW_PRIV_TYPE_BYTE | 16, 0, "sethisto" }, |
| 2398 | { SIOCGIPHISTO, 0, IW_PRIV_TYPE_INT | 16, "gethisto" }, |
| 2399 | }; |
| 2400 | |
| 2401 | static const struct iw_handler_def wavelan_handler_def = |
| 2402 | { |
| 2403 | .num_standard = sizeof(wavelan_handler)/sizeof(iw_handler), |
| 2404 | .num_private = sizeof(wavelan_private_handler)/sizeof(iw_handler), |
| 2405 | .num_private_args = sizeof(wavelan_private_args)/sizeof(struct iw_priv_args), |
| 2406 | .standard = wavelan_handler, |
| 2407 | .private = wavelan_private_handler, |
| 2408 | .private_args = wavelan_private_args, |
| 2409 | .get_wireless_stats = wavelan_get_wireless_stats, |
| 2410 | }; |
| 2411 | |
| 2412 | /*------------------------------------------------------------------*/ |
| 2413 | /* |
| 2414 | * Get wireless statistics. |
| 2415 | * Called by /proc/net/wireless |
| 2416 | */ |
| 2417 | static iw_stats *wavelan_get_wireless_stats(struct net_device * dev) |
| 2418 | { |
| 2419 | unsigned long ioaddr = dev->base_addr; |
| 2420 | net_local *lp = (net_local *) dev->priv; |
| 2421 | mmr_t m; |
| 2422 | iw_stats *wstats; |
| 2423 | unsigned long flags; |
| 2424 | |
| 2425 | #ifdef DEBUG_IOCTL_TRACE |
| 2426 | printk(KERN_DEBUG "%s: ->wavelan_get_wireless_stats()\n", |
| 2427 | dev->name); |
| 2428 | #endif |
| 2429 | |
| 2430 | /* Check */ |
| 2431 | if (lp == (net_local *) NULL) |
| 2432 | return (iw_stats *) NULL; |
| 2433 | |
| 2434 | /* Disable interrupts and save flags. */ |
| 2435 | spin_lock_irqsave(&lp->spinlock, flags); |
| 2436 | |
| 2437 | wstats = &lp->wstats; |
| 2438 | |
| 2439 | /* Get data from the mmc. */ |
| 2440 | mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1); |
| 2441 | |
| 2442 | mmc_read(ioaddr, mmroff(0, mmr_dce_status), &m.mmr_dce_status, 1); |
| 2443 | mmc_read(ioaddr, mmroff(0, mmr_wrong_nwid_l), &m.mmr_wrong_nwid_l, |
| 2444 | 2); |
| 2445 | mmc_read(ioaddr, mmroff(0, mmr_thr_pre_set), &m.mmr_thr_pre_set, |
| 2446 | 4); |
| 2447 | |
| 2448 | mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0); |
| 2449 | |
| 2450 | /* Copy data to wireless stuff. */ |
| 2451 | wstats->status = m.mmr_dce_status & MMR_DCE_STATUS; |
| 2452 | wstats->qual.qual = m.mmr_sgnl_qual & MMR_SGNL_QUAL; |
| 2453 | wstats->qual.level = m.mmr_signal_lvl & MMR_SIGNAL_LVL; |
| 2454 | wstats->qual.noise = m.mmr_silence_lvl & MMR_SILENCE_LVL; |
| 2455 | wstats->qual.updated = (((m. mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 7) |
| 2456 | | ((m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 6) |
| 2457 | | ((m.mmr_silence_lvl & MMR_SILENCE_LVL_VALID) >> 5)); |
| 2458 | wstats->discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l; |
| 2459 | wstats->discard.code = 0L; |
| 2460 | wstats->discard.misc = 0L; |
| 2461 | |
| 2462 | /* Enable interrupts and restore flags. */ |
| 2463 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 2464 | |
| 2465 | #ifdef DEBUG_IOCTL_TRACE |
| 2466 | printk(KERN_DEBUG "%s: <-wavelan_get_wireless_stats()\n", |
| 2467 | dev->name); |
| 2468 | #endif |
| 2469 | return &lp->wstats; |
| 2470 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2471 | |
| 2472 | /************************* PACKET RECEPTION *************************/ |
| 2473 | /* |
| 2474 | * This part deals with receiving the packets. |
| 2475 | * The interrupt handler gets an interrupt when a packet has been |
| 2476 | * successfully received and calls this part. |
| 2477 | */ |
| 2478 | |
| 2479 | /*------------------------------------------------------------------*/ |
| 2480 | /* |
| 2481 | * This routine does the actual copying of data (including the Ethernet |
| 2482 | * header structure) from the WaveLAN card to an sk_buff chain that |
| 2483 | * will be passed up to the network interface layer. NOTE: we |
| 2484 | * currently don't handle trailer protocols (neither does the rest of |
| 2485 | * the network interface), so if that is needed, it will (at least in |
| 2486 | * part) be added here. The contents of the receive ring buffer are |
| 2487 | * copied to a message chain that is then passed to the kernel. |
| 2488 | * |
| 2489 | * Note: if any errors occur, the packet is "dropped on the floor". |
| 2490 | * (called by wv_packet_rcv()) |
| 2491 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 2492 | static void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2493 | wv_packet_read(struct net_device * dev, u16 buf_off, int sksize) |
| 2494 | { |
| 2495 | net_local *lp = (net_local *) dev->priv; |
| 2496 | unsigned long ioaddr = dev->base_addr; |
| 2497 | struct sk_buff *skb; |
| 2498 | |
| 2499 | #ifdef DEBUG_RX_TRACE |
| 2500 | printk(KERN_DEBUG "%s: ->wv_packet_read(0x%X, %d)\n", |
| 2501 | dev->name, buf_off, sksize); |
| 2502 | #endif |
| 2503 | |
| 2504 | /* Allocate buffer for the data */ |
| 2505 | if ((skb = dev_alloc_skb(sksize)) == (struct sk_buff *) NULL) { |
| 2506 | #ifdef DEBUG_RX_ERROR |
| 2507 | printk(KERN_INFO |
| 2508 | "%s: wv_packet_read(): could not alloc_skb(%d, GFP_ATOMIC).\n", |
| 2509 | dev->name, sksize); |
| 2510 | #endif |
| 2511 | lp->stats.rx_dropped++; |
| 2512 | return; |
| 2513 | } |
| 2514 | |
| 2515 | skb->dev = dev; |
| 2516 | |
| 2517 | /* Copy the packet to the buffer. */ |
| 2518 | obram_read(ioaddr, buf_off, skb_put(skb, sksize), sksize); |
| 2519 | skb->protocol = eth_type_trans(skb, dev); |
| 2520 | |
| 2521 | #ifdef DEBUG_RX_INFO |
| 2522 | wv_packet_info(skb->mac.raw, sksize, dev->name, "wv_packet_read"); |
| 2523 | #endif /* DEBUG_RX_INFO */ |
| 2524 | |
| 2525 | /* Statistics-gathering and associated stuff. |
| 2526 | * It seem a bit messy with all the define, but it's really |
| 2527 | * simple... */ |
| 2528 | if ( |
| 2529 | #ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */ |
| 2530 | (lp->spy_data.spy_number > 0) || |
| 2531 | #endif /* IW_WIRELESS_SPY */ |
| 2532 | #ifdef HISTOGRAM |
| 2533 | (lp->his_number > 0) || |
| 2534 | #endif /* HISTOGRAM */ |
| 2535 | 0) { |
| 2536 | u8 stats[3]; /* signal level, noise level, signal quality */ |
| 2537 | |
| 2538 | /* Read signal level, silence level and signal quality bytes */ |
| 2539 | /* Note: in the PCMCIA hardware, these are part of the frame. |
| 2540 | * It seems that for the ISA hardware, it's nowhere to be |
| 2541 | * found in the frame, so I'm obliged to do this (it has a |
| 2542 | * side effect on /proc/net/wireless). |
| 2543 | * Any ideas? |
| 2544 | */ |
| 2545 | mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1); |
| 2546 | mmc_read(ioaddr, mmroff(0, mmr_signal_lvl), stats, 3); |
| 2547 | mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0); |
| 2548 | |
| 2549 | #ifdef DEBUG_RX_INFO |
| 2550 | printk(KERN_DEBUG |
| 2551 | "%s: wv_packet_read(): Signal level %d/63, Silence level %d/63, signal quality %d/16\n", |
| 2552 | dev->name, stats[0] & 0x3F, stats[1] & 0x3F, |
| 2553 | stats[2] & 0x0F); |
| 2554 | #endif |
| 2555 | |
| 2556 | /* Spying stuff */ |
| 2557 | #ifdef IW_WIRELESS_SPY |
| 2558 | wl_spy_gather(dev, skb->mac.raw + WAVELAN_ADDR_SIZE, |
| 2559 | stats); |
| 2560 | #endif /* IW_WIRELESS_SPY */ |
| 2561 | #ifdef HISTOGRAM |
| 2562 | wl_his_gather(dev, stats); |
| 2563 | #endif /* HISTOGRAM */ |
| 2564 | } |
| 2565 | |
| 2566 | /* |
| 2567 | * Hand the packet to the network module. |
| 2568 | */ |
| 2569 | netif_rx(skb); |
| 2570 | |
| 2571 | /* Keep statistics up to date */ |
| 2572 | dev->last_rx = jiffies; |
| 2573 | lp->stats.rx_packets++; |
| 2574 | lp->stats.rx_bytes += sksize; |
| 2575 | |
| 2576 | #ifdef DEBUG_RX_TRACE |
| 2577 | printk(KERN_DEBUG "%s: <-wv_packet_read()\n", dev->name); |
| 2578 | #endif |
| 2579 | } |
| 2580 | |
| 2581 | /*------------------------------------------------------------------*/ |
| 2582 | /* |
| 2583 | * Transfer as many packets as we can |
| 2584 | * from the device RAM. |
| 2585 | * (called in wavelan_interrupt()). |
| 2586 | * Note : the spinlock is already grabbed for us. |
| 2587 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 2588 | static void wv_receive(struct net_device * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2589 | { |
| 2590 | unsigned long ioaddr = dev->base_addr; |
| 2591 | net_local *lp = (net_local *) dev->priv; |
| 2592 | fd_t fd; |
| 2593 | rbd_t rbd; |
| 2594 | int nreaped = 0; |
| 2595 | |
| 2596 | #ifdef DEBUG_RX_TRACE |
| 2597 | printk(KERN_DEBUG "%s: ->wv_receive()\n", dev->name); |
| 2598 | #endif |
| 2599 | |
| 2600 | /* Loop on each received packet. */ |
| 2601 | for (;;) { |
| 2602 | obram_read(ioaddr, lp->rx_head, (unsigned char *) &fd, |
| 2603 | sizeof(fd)); |
| 2604 | |
| 2605 | /* Note about the status : |
| 2606 | * It start up to be 0 (the value we set). Then, when the RU |
| 2607 | * grab the buffer to prepare for reception, it sets the |
| 2608 | * FD_STATUS_B flag. When the RU has finished receiving the |
| 2609 | * frame, it clears FD_STATUS_B, set FD_STATUS_C to indicate |
| 2610 | * completion and set the other flags to indicate the eventual |
| 2611 | * errors. FD_STATUS_OK indicates that the reception was OK. |
| 2612 | */ |
| 2613 | |
| 2614 | /* If the current frame is not complete, we have reached the end. */ |
| 2615 | if ((fd.fd_status & FD_STATUS_C) != FD_STATUS_C) |
| 2616 | break; /* This is how we exit the loop. */ |
| 2617 | |
| 2618 | nreaped++; |
| 2619 | |
| 2620 | /* Check whether frame was correctly received. */ |
| 2621 | if ((fd.fd_status & FD_STATUS_OK) == FD_STATUS_OK) { |
| 2622 | /* Does the frame contain a pointer to the data? Let's check. */ |
| 2623 | if (fd.fd_rbd_offset != I82586NULL) { |
| 2624 | /* Read the receive buffer descriptor */ |
| 2625 | obram_read(ioaddr, fd.fd_rbd_offset, |
| 2626 | (unsigned char *) &rbd, |
| 2627 | sizeof(rbd)); |
| 2628 | |
| 2629 | #ifdef DEBUG_RX_ERROR |
| 2630 | if ((rbd.rbd_status & RBD_STATUS_EOF) != |
| 2631 | RBD_STATUS_EOF) printk(KERN_INFO |
| 2632 | "%s: wv_receive(): missing EOF flag.\n", |
| 2633 | dev->name); |
| 2634 | |
| 2635 | if ((rbd.rbd_status & RBD_STATUS_F) != |
| 2636 | RBD_STATUS_F) printk(KERN_INFO |
| 2637 | "%s: wv_receive(): missing F flag.\n", |
| 2638 | dev->name); |
| 2639 | #endif /* DEBUG_RX_ERROR */ |
| 2640 | |
| 2641 | /* Read the packet and transmit to Linux */ |
| 2642 | wv_packet_read(dev, rbd.rbd_bufl, |
| 2643 | rbd. |
| 2644 | rbd_status & |
| 2645 | RBD_STATUS_ACNT); |
| 2646 | } |
| 2647 | #ifdef DEBUG_RX_ERROR |
| 2648 | else /* if frame has no data */ |
| 2649 | printk(KERN_INFO |
| 2650 | "%s: wv_receive(): frame has no data.\n", |
| 2651 | dev->name); |
| 2652 | #endif |
| 2653 | } else { /* If reception was no successful */ |
| 2654 | |
| 2655 | lp->stats.rx_errors++; |
| 2656 | |
| 2657 | #ifdef DEBUG_RX_INFO |
| 2658 | printk(KERN_DEBUG |
| 2659 | "%s: wv_receive(): frame not received successfully (%X).\n", |
| 2660 | dev->name, fd.fd_status); |
| 2661 | #endif |
| 2662 | |
| 2663 | #ifdef DEBUG_RX_ERROR |
| 2664 | if ((fd.fd_status & FD_STATUS_S6) != 0) |
| 2665 | printk(KERN_INFO |
| 2666 | "%s: wv_receive(): no EOF flag.\n", |
| 2667 | dev->name); |
| 2668 | #endif |
| 2669 | |
| 2670 | if ((fd.fd_status & FD_STATUS_S7) != 0) { |
| 2671 | lp->stats.rx_length_errors++; |
| 2672 | #ifdef DEBUG_RX_FAIL |
| 2673 | printk(KERN_DEBUG |
| 2674 | "%s: wv_receive(): frame too short.\n", |
| 2675 | dev->name); |
| 2676 | #endif |
| 2677 | } |
| 2678 | |
| 2679 | if ((fd.fd_status & FD_STATUS_S8) != 0) { |
| 2680 | lp->stats.rx_over_errors++; |
| 2681 | #ifdef DEBUG_RX_FAIL |
| 2682 | printk(KERN_DEBUG |
| 2683 | "%s: wv_receive(): rx DMA overrun.\n", |
| 2684 | dev->name); |
| 2685 | #endif |
| 2686 | } |
| 2687 | |
| 2688 | if ((fd.fd_status & FD_STATUS_S9) != 0) { |
| 2689 | lp->stats.rx_fifo_errors++; |
| 2690 | #ifdef DEBUG_RX_FAIL |
| 2691 | printk(KERN_DEBUG |
| 2692 | "%s: wv_receive(): ran out of resources.\n", |
| 2693 | dev->name); |
| 2694 | #endif |
| 2695 | } |
| 2696 | |
| 2697 | if ((fd.fd_status & FD_STATUS_S10) != 0) { |
| 2698 | lp->stats.rx_frame_errors++; |
| 2699 | #ifdef DEBUG_RX_FAIL |
| 2700 | printk(KERN_DEBUG |
| 2701 | "%s: wv_receive(): alignment error.\n", |
| 2702 | dev->name); |
| 2703 | #endif |
| 2704 | } |
| 2705 | |
| 2706 | if ((fd.fd_status & FD_STATUS_S11) != 0) { |
| 2707 | lp->stats.rx_crc_errors++; |
| 2708 | #ifdef DEBUG_RX_FAIL |
| 2709 | printk(KERN_DEBUG |
| 2710 | "%s: wv_receive(): CRC error.\n", |
| 2711 | dev->name); |
| 2712 | #endif |
| 2713 | } |
| 2714 | } |
| 2715 | |
| 2716 | fd.fd_status = 0; |
| 2717 | obram_write(ioaddr, fdoff(lp->rx_head, fd_status), |
| 2718 | (unsigned char *) &fd.fd_status, |
| 2719 | sizeof(fd.fd_status)); |
| 2720 | |
| 2721 | fd.fd_command = FD_COMMAND_EL; |
| 2722 | obram_write(ioaddr, fdoff(lp->rx_head, fd_command), |
| 2723 | (unsigned char *) &fd.fd_command, |
| 2724 | sizeof(fd.fd_command)); |
| 2725 | |
| 2726 | fd.fd_command = 0; |
| 2727 | obram_write(ioaddr, fdoff(lp->rx_last, fd_command), |
| 2728 | (unsigned char *) &fd.fd_command, |
| 2729 | sizeof(fd.fd_command)); |
| 2730 | |
| 2731 | lp->rx_last = lp->rx_head; |
| 2732 | lp->rx_head = fd.fd_link_offset; |
| 2733 | } /* for(;;) -> loop on all frames */ |
| 2734 | |
| 2735 | #ifdef DEBUG_RX_INFO |
| 2736 | if (nreaped > 1) |
| 2737 | printk(KERN_DEBUG "%s: wv_receive(): reaped %d\n", |
| 2738 | dev->name, nreaped); |
| 2739 | #endif |
| 2740 | #ifdef DEBUG_RX_TRACE |
| 2741 | printk(KERN_DEBUG "%s: <-wv_receive()\n", dev->name); |
| 2742 | #endif |
| 2743 | } |
| 2744 | |
| 2745 | /*********************** PACKET TRANSMISSION ***********************/ |
| 2746 | /* |
| 2747 | * This part deals with sending packets through the WaveLAN. |
| 2748 | * |
| 2749 | */ |
| 2750 | |
| 2751 | /*------------------------------------------------------------------*/ |
| 2752 | /* |
| 2753 | * This routine fills in the appropriate registers and memory |
| 2754 | * locations on the WaveLAN card and starts the card off on |
| 2755 | * the transmit. |
| 2756 | * |
| 2757 | * The principle: |
| 2758 | * Each block contains a transmit command, a NOP command, |
| 2759 | * a transmit block descriptor and a buffer. |
| 2760 | * The CU read the transmit block which point to the tbd, |
| 2761 | * read the tbd and the content of the buffer. |
| 2762 | * When it has finish with it, it goes to the next command |
| 2763 | * which in our case is the NOP. The NOP points on itself, |
| 2764 | * so the CU stop here. |
| 2765 | * When we add the next block, we modify the previous nop |
| 2766 | * to make it point on the new tx command. |
| 2767 | * Simple, isn't it ? |
| 2768 | * |
| 2769 | * (called in wavelan_packet_xmit()) |
| 2770 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 2771 | static int wv_packet_write(struct net_device * dev, void *buf, short length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2772 | { |
| 2773 | net_local *lp = (net_local *) dev->priv; |
| 2774 | unsigned long ioaddr = dev->base_addr; |
| 2775 | unsigned short txblock; |
| 2776 | unsigned short txpred; |
| 2777 | unsigned short tx_addr; |
| 2778 | unsigned short nop_addr; |
| 2779 | unsigned short tbd_addr; |
| 2780 | unsigned short buf_addr; |
| 2781 | ac_tx_t tx; |
| 2782 | ac_nop_t nop; |
| 2783 | tbd_t tbd; |
| 2784 | int clen = length; |
| 2785 | unsigned long flags; |
| 2786 | |
| 2787 | #ifdef DEBUG_TX_TRACE |
| 2788 | printk(KERN_DEBUG "%s: ->wv_packet_write(%d)\n", dev->name, |
| 2789 | length); |
| 2790 | #endif |
| 2791 | |
| 2792 | spin_lock_irqsave(&lp->spinlock, flags); |
| 2793 | |
| 2794 | /* Check nothing bad has happened */ |
| 2795 | if (lp->tx_n_in_use == (NTXBLOCKS - 1)) { |
| 2796 | #ifdef DEBUG_TX_ERROR |
| 2797 | printk(KERN_INFO "%s: wv_packet_write(): Tx queue full.\n", |
| 2798 | dev->name); |
| 2799 | #endif |
| 2800 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 2801 | return 1; |
| 2802 | } |
| 2803 | |
| 2804 | /* Calculate addresses of next block and previous block. */ |
| 2805 | txblock = lp->tx_first_free; |
| 2806 | txpred = txblock - TXBLOCKZ; |
| 2807 | if (txpred < OFFSET_CU) |
| 2808 | txpred += NTXBLOCKS * TXBLOCKZ; |
| 2809 | lp->tx_first_free += TXBLOCKZ; |
| 2810 | if (lp->tx_first_free >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ) |
| 2811 | lp->tx_first_free -= NTXBLOCKS * TXBLOCKZ; |
| 2812 | |
| 2813 | lp->tx_n_in_use++; |
| 2814 | |
| 2815 | /* Calculate addresses of the different parts of the block. */ |
| 2816 | tx_addr = txblock; |
| 2817 | nop_addr = tx_addr + sizeof(tx); |
| 2818 | tbd_addr = nop_addr + sizeof(nop); |
| 2819 | buf_addr = tbd_addr + sizeof(tbd); |
| 2820 | |
| 2821 | /* |
| 2822 | * Transmit command |
| 2823 | */ |
| 2824 | tx.tx_h.ac_status = 0; |
| 2825 | obram_write(ioaddr, toff(ac_tx_t, tx_addr, tx_h.ac_status), |
| 2826 | (unsigned char *) &tx.tx_h.ac_status, |
| 2827 | sizeof(tx.tx_h.ac_status)); |
| 2828 | |
| 2829 | /* |
| 2830 | * NOP command |
| 2831 | */ |
| 2832 | nop.nop_h.ac_status = 0; |
| 2833 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status), |
| 2834 | (unsigned char *) &nop.nop_h.ac_status, |
| 2835 | sizeof(nop.nop_h.ac_status)); |
| 2836 | nop.nop_h.ac_link = nop_addr; |
| 2837 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link), |
| 2838 | (unsigned char *) &nop.nop_h.ac_link, |
| 2839 | sizeof(nop.nop_h.ac_link)); |
| 2840 | |
| 2841 | /* |
| 2842 | * Transmit buffer descriptor |
| 2843 | */ |
| 2844 | tbd.tbd_status = TBD_STATUS_EOF | (TBD_STATUS_ACNT & clen); |
| 2845 | tbd.tbd_next_bd_offset = I82586NULL; |
| 2846 | tbd.tbd_bufl = buf_addr; |
| 2847 | tbd.tbd_bufh = 0; |
| 2848 | obram_write(ioaddr, tbd_addr, (unsigned char *) &tbd, sizeof(tbd)); |
| 2849 | |
| 2850 | /* |
| 2851 | * Data |
| 2852 | */ |
| 2853 | obram_write(ioaddr, buf_addr, buf, length); |
| 2854 | |
| 2855 | /* |
| 2856 | * Overwrite the predecessor NOP link |
| 2857 | * so that it points to this txblock. |
| 2858 | */ |
| 2859 | nop_addr = txpred + sizeof(tx); |
| 2860 | nop.nop_h.ac_status = 0; |
| 2861 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status), |
| 2862 | (unsigned char *) &nop.nop_h.ac_status, |
| 2863 | sizeof(nop.nop_h.ac_status)); |
| 2864 | nop.nop_h.ac_link = txblock; |
| 2865 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link), |
| 2866 | (unsigned char *) &nop.nop_h.ac_link, |
| 2867 | sizeof(nop.nop_h.ac_link)); |
| 2868 | |
| 2869 | /* Make sure the watchdog will keep quiet for a while */ |
| 2870 | dev->trans_start = jiffies; |
| 2871 | |
| 2872 | /* Keep stats up to date. */ |
| 2873 | lp->stats.tx_bytes += length; |
| 2874 | |
| 2875 | if (lp->tx_first_in_use == I82586NULL) |
| 2876 | lp->tx_first_in_use = txblock; |
| 2877 | |
| 2878 | if (lp->tx_n_in_use < NTXBLOCKS - 1) |
| 2879 | netif_wake_queue(dev); |
| 2880 | |
| 2881 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 2882 | |
| 2883 | #ifdef DEBUG_TX_INFO |
| 2884 | wv_packet_info((u8 *) buf, length, dev->name, |
| 2885 | "wv_packet_write"); |
| 2886 | #endif /* DEBUG_TX_INFO */ |
| 2887 | |
| 2888 | #ifdef DEBUG_TX_TRACE |
| 2889 | printk(KERN_DEBUG "%s: <-wv_packet_write()\n", dev->name); |
| 2890 | #endif |
| 2891 | |
| 2892 | return 0; |
| 2893 | } |
| 2894 | |
| 2895 | /*------------------------------------------------------------------*/ |
| 2896 | /* |
| 2897 | * This routine is called when we want to send a packet (NET3 callback) |
| 2898 | * In this routine, we check if the harware is ready to accept |
| 2899 | * the packet. We also prevent reentrance. Then we call the function |
| 2900 | * to send the packet. |
| 2901 | */ |
| 2902 | static int wavelan_packet_xmit(struct sk_buff *skb, struct net_device * dev) |
| 2903 | { |
| 2904 | net_local *lp = (net_local *) dev->priv; |
| 2905 | unsigned long flags; |
Alan Cox | aa95abe | 2006-06-22 14:25:34 +0100 | [diff] [blame] | 2906 | char data[ETH_ZLEN]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2907 | |
| 2908 | #ifdef DEBUG_TX_TRACE |
| 2909 | printk(KERN_DEBUG "%s: ->wavelan_packet_xmit(0x%X)\n", dev->name, |
| 2910 | (unsigned) skb); |
| 2911 | #endif |
| 2912 | |
| 2913 | /* |
| 2914 | * Block a timer-based transmit from overlapping. |
| 2915 | * In other words, prevent reentering this routine. |
| 2916 | */ |
| 2917 | netif_stop_queue(dev); |
| 2918 | |
| 2919 | /* If somebody has asked to reconfigure the controller, |
| 2920 | * we can do it now. |
| 2921 | */ |
| 2922 | if (lp->reconfig_82586) { |
| 2923 | spin_lock_irqsave(&lp->spinlock, flags); |
| 2924 | wv_82586_config(dev); |
| 2925 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 2926 | /* Check that we can continue */ |
| 2927 | if (lp->tx_n_in_use == (NTXBLOCKS - 1)) |
| 2928 | return 1; |
| 2929 | } |
| 2930 | #ifdef DEBUG_TX_ERROR |
| 2931 | if (skb->next) |
| 2932 | printk(KERN_INFO "skb has next\n"); |
| 2933 | #endif |
| 2934 | |
| 2935 | /* Do we need some padding? */ |
| 2936 | /* Note : on wireless the propagation time is in the order of 1us, |
| 2937 | * and we don't have the Ethernet specific requirement of beeing |
| 2938 | * able to detect collisions, therefore in theory we don't really |
| 2939 | * need to pad. Jean II */ |
| 2940 | if (skb->len < ETH_ZLEN) { |
Alan Cox | aa95abe | 2006-06-22 14:25:34 +0100 | [diff] [blame] | 2941 | memset(data, 0, ETH_ZLEN); |
| 2942 | memcpy(data, skb->data, skb->len); |
| 2943 | /* Write packet on the card */ |
| 2944 | if(wv_packet_write(dev, data, ETH_ZLEN)) |
| 2945 | return 1; /* We failed */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2946 | } |
Alan Cox | aa95abe | 2006-06-22 14:25:34 +0100 | [diff] [blame] | 2947 | else if(wv_packet_write(dev, skb->data, skb->len)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2948 | return 1; /* We failed */ |
| 2949 | |
Alan Cox | aa95abe | 2006-06-22 14:25:34 +0100 | [diff] [blame] | 2950 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2951 | dev_kfree_skb(skb); |
| 2952 | |
| 2953 | #ifdef DEBUG_TX_TRACE |
| 2954 | printk(KERN_DEBUG "%s: <-wavelan_packet_xmit()\n", dev->name); |
| 2955 | #endif |
| 2956 | return 0; |
| 2957 | } |
| 2958 | |
| 2959 | /*********************** HARDWARE CONFIGURATION ***********************/ |
| 2960 | /* |
| 2961 | * This part does the real job of starting and configuring the hardware. |
| 2962 | */ |
| 2963 | |
| 2964 | /*--------------------------------------------------------------------*/ |
| 2965 | /* |
| 2966 | * Routine to initialize the Modem Management Controller. |
| 2967 | * (called by wv_hw_reset()) |
| 2968 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 2969 | static int wv_mmc_init(struct net_device * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2970 | { |
| 2971 | unsigned long ioaddr = dev->base_addr; |
| 2972 | net_local *lp = (net_local *) dev->priv; |
| 2973 | psa_t psa; |
| 2974 | mmw_t m; |
| 2975 | int configured; |
| 2976 | |
| 2977 | #ifdef DEBUG_CONFIG_TRACE |
| 2978 | printk(KERN_DEBUG "%s: ->wv_mmc_init()\n", dev->name); |
| 2979 | #endif |
| 2980 | |
| 2981 | /* Read the parameter storage area. */ |
| 2982 | psa_read(ioaddr, lp->hacr, 0, (unsigned char *) &psa, sizeof(psa)); |
| 2983 | |
| 2984 | #ifdef USE_PSA_CONFIG |
| 2985 | configured = psa.psa_conf_status & 1; |
| 2986 | #else |
| 2987 | configured = 0; |
| 2988 | #endif |
| 2989 | |
| 2990 | /* Is the PSA is not configured */ |
| 2991 | if (!configured) { |
| 2992 | /* User will be able to configure NWID later (with iwconfig). */ |
| 2993 | psa.psa_nwid[0] = 0; |
| 2994 | psa.psa_nwid[1] = 0; |
| 2995 | |
| 2996 | /* no NWID checking since NWID is not set */ |
| 2997 | psa.psa_nwid_select = 0; |
| 2998 | |
| 2999 | /* Disable encryption */ |
| 3000 | psa.psa_encryption_select = 0; |
| 3001 | |
| 3002 | /* Set to standard values: |
| 3003 | * 0x04 for AT, |
| 3004 | * 0x01 for MCA, |
| 3005 | * 0x04 for PCMCIA and 2.00 card (AT&T 407-024689/E document) |
| 3006 | */ |
| 3007 | if (psa.psa_comp_number & 1) |
| 3008 | psa.psa_thr_pre_set = 0x01; |
| 3009 | else |
| 3010 | psa.psa_thr_pre_set = 0x04; |
| 3011 | psa.psa_quality_thr = 0x03; |
| 3012 | |
| 3013 | /* It is configured */ |
| 3014 | psa.psa_conf_status |= 1; |
| 3015 | |
| 3016 | #ifdef USE_PSA_CONFIG |
| 3017 | /* Write the psa. */ |
| 3018 | psa_write(ioaddr, lp->hacr, |
| 3019 | (char *) psa.psa_nwid - (char *) &psa, |
| 3020 | (unsigned char *) psa.psa_nwid, 4); |
| 3021 | psa_write(ioaddr, lp->hacr, |
| 3022 | (char *) &psa.psa_thr_pre_set - (char *) &psa, |
| 3023 | (unsigned char *) &psa.psa_thr_pre_set, 1); |
| 3024 | psa_write(ioaddr, lp->hacr, |
| 3025 | (char *) &psa.psa_quality_thr - (char *) &psa, |
| 3026 | (unsigned char *) &psa.psa_quality_thr, 1); |
| 3027 | psa_write(ioaddr, lp->hacr, |
| 3028 | (char *) &psa.psa_conf_status - (char *) &psa, |
| 3029 | (unsigned char *) &psa.psa_conf_status, 1); |
| 3030 | /* update the Wavelan checksum */ |
| 3031 | update_psa_checksum(dev, ioaddr, lp->hacr); |
| 3032 | #endif |
| 3033 | } |
| 3034 | |
| 3035 | /* Zero the mmc structure. */ |
| 3036 | memset(&m, 0x00, sizeof(m)); |
| 3037 | |
| 3038 | /* Copy PSA info to the mmc. */ |
| 3039 | m.mmw_netw_id_l = psa.psa_nwid[1]; |
| 3040 | m.mmw_netw_id_h = psa.psa_nwid[0]; |
| 3041 | |
| 3042 | if (psa.psa_nwid_select & 1) |
| 3043 | m.mmw_loopt_sel = 0x00; |
| 3044 | else |
| 3045 | m.mmw_loopt_sel = MMW_LOOPT_SEL_DIS_NWID; |
| 3046 | |
| 3047 | memcpy(&m.mmw_encr_key, &psa.psa_encryption_key, |
| 3048 | sizeof(m.mmw_encr_key)); |
| 3049 | |
| 3050 | if (psa.psa_encryption_select) |
| 3051 | m.mmw_encr_enable = |
| 3052 | MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE; |
| 3053 | else |
| 3054 | m.mmw_encr_enable = 0; |
| 3055 | |
| 3056 | m.mmw_thr_pre_set = psa.psa_thr_pre_set & 0x3F; |
| 3057 | m.mmw_quality_thr = psa.psa_quality_thr & 0x0F; |
| 3058 | |
| 3059 | /* |
| 3060 | * Set default modem control parameters. |
| 3061 | * See NCR document 407-0024326 Rev. A. |
| 3062 | */ |
| 3063 | m.mmw_jabber_enable = 0x01; |
| 3064 | m.mmw_freeze = 0; |
| 3065 | m.mmw_anten_sel = MMW_ANTEN_SEL_ALG_EN; |
| 3066 | m.mmw_ifs = 0x20; |
| 3067 | m.mmw_mod_delay = 0x04; |
| 3068 | m.mmw_jam_time = 0x38; |
| 3069 | |
| 3070 | m.mmw_des_io_invert = 0; |
| 3071 | m.mmw_decay_prm = 0; |
| 3072 | m.mmw_decay_updat_prm = 0; |
| 3073 | |
| 3074 | /* Write all info to MMC. */ |
| 3075 | mmc_write(ioaddr, 0, (u8 *) & m, sizeof(m)); |
| 3076 | |
| 3077 | /* The following code starts the modem of the 2.00 frequency |
| 3078 | * selectable cards at power on. It's not strictly needed for the |
| 3079 | * following boots. |
| 3080 | * The original patch was by Joe Finney for the PCMCIA driver, but |
| 3081 | * I've cleaned it up a bit and added documentation. |
| 3082 | * Thanks to Loeke Brederveld from Lucent for the info. |
| 3083 | */ |
| 3084 | |
| 3085 | /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable) |
| 3086 | * Does it work for everybody, especially old cards? */ |
| 3087 | /* Note: WFREQSEL verifies that it is able to read a sensible |
| 3088 | * frequency from EEPROM (address 0x00) and that MMR_FEE_STATUS_ID |
| 3089 | * is 0xA (Xilinx version) or 0xB (Ariadne version). |
| 3090 | * My test is more crude but does work. */ |
| 3091 | if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) & |
| 3092 | (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) { |
| 3093 | /* We must download the frequency parameters to the |
| 3094 | * synthesizers (from the EEPROM - area 1) |
| 3095 | * Note: as the EEPROM is automatically decremented, we set the end |
| 3096 | * if the area... */ |
| 3097 | m.mmw_fee_addr = 0x0F; |
| 3098 | m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD; |
| 3099 | mmc_write(ioaddr, (char *) &m.mmw_fee_ctrl - (char *) &m, |
| 3100 | (unsigned char *) &m.mmw_fee_ctrl, 2); |
| 3101 | |
| 3102 | /* Wait until the download is finished. */ |
| 3103 | fee_wait(ioaddr, 100, 100); |
| 3104 | |
| 3105 | #ifdef DEBUG_CONFIG_INFO |
| 3106 | /* The frequency was in the last word downloaded. */ |
| 3107 | mmc_read(ioaddr, (char *) &m.mmw_fee_data_l - (char *) &m, |
| 3108 | (unsigned char *) &m.mmw_fee_data_l, 2); |
| 3109 | |
| 3110 | /* Print some info for the user. */ |
| 3111 | printk(KERN_DEBUG |
| 3112 | "%s: WaveLAN 2.00 recognised (frequency select). Current frequency = %ld\n", |
| 3113 | dev->name, |
| 3114 | ((m. |
| 3115 | mmw_fee_data_h << 4) | (m.mmw_fee_data_l >> 4)) * |
| 3116 | 5 / 2 + 24000L); |
| 3117 | #endif |
| 3118 | |
| 3119 | /* We must now download the power adjust value (gain) to |
| 3120 | * the synthesizers (from the EEPROM - area 7 - DAC). */ |
| 3121 | m.mmw_fee_addr = 0x61; |
| 3122 | m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD; |
| 3123 | mmc_write(ioaddr, (char *) &m.mmw_fee_ctrl - (char *) &m, |
| 3124 | (unsigned char *) &m.mmw_fee_ctrl, 2); |
| 3125 | |
| 3126 | /* Wait until the download is finished. */ |
| 3127 | } |
| 3128 | /* if 2.00 card */ |
| 3129 | #ifdef DEBUG_CONFIG_TRACE |
| 3130 | printk(KERN_DEBUG "%s: <-wv_mmc_init()\n", dev->name); |
| 3131 | #endif |
| 3132 | return 0; |
| 3133 | } |
| 3134 | |
| 3135 | /*------------------------------------------------------------------*/ |
| 3136 | /* |
| 3137 | * Construct the fd and rbd structures. |
| 3138 | * Start the receive unit. |
| 3139 | * (called by wv_hw_reset()) |
| 3140 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 3141 | static int wv_ru_start(struct net_device * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3142 | { |
| 3143 | net_local *lp = (net_local *) dev->priv; |
| 3144 | unsigned long ioaddr = dev->base_addr; |
| 3145 | u16 scb_cs; |
| 3146 | fd_t fd; |
| 3147 | rbd_t rbd; |
| 3148 | u16 rx; |
| 3149 | u16 rx_next; |
| 3150 | int i; |
| 3151 | |
| 3152 | #ifdef DEBUG_CONFIG_TRACE |
| 3153 | printk(KERN_DEBUG "%s: ->wv_ru_start()\n", dev->name); |
| 3154 | #endif |
| 3155 | |
| 3156 | obram_read(ioaddr, scboff(OFFSET_SCB, scb_status), |
| 3157 | (unsigned char *) &scb_cs, sizeof(scb_cs)); |
| 3158 | if ((scb_cs & SCB_ST_RUS) == SCB_ST_RUS_RDY) |
| 3159 | return 0; |
| 3160 | |
| 3161 | lp->rx_head = OFFSET_RU; |
| 3162 | |
| 3163 | for (i = 0, rx = lp->rx_head; i < NRXBLOCKS; i++, rx = rx_next) { |
| 3164 | rx_next = |
| 3165 | (i == NRXBLOCKS - 1) ? lp->rx_head : rx + RXBLOCKZ; |
| 3166 | |
| 3167 | fd.fd_status = 0; |
| 3168 | fd.fd_command = (i == NRXBLOCKS - 1) ? FD_COMMAND_EL : 0; |
| 3169 | fd.fd_link_offset = rx_next; |
| 3170 | fd.fd_rbd_offset = rx + sizeof(fd); |
| 3171 | obram_write(ioaddr, rx, (unsigned char *) &fd, sizeof(fd)); |
| 3172 | |
| 3173 | rbd.rbd_status = 0; |
| 3174 | rbd.rbd_next_rbd_offset = I82586NULL; |
| 3175 | rbd.rbd_bufl = rx + sizeof(fd) + sizeof(rbd); |
| 3176 | rbd.rbd_bufh = 0; |
| 3177 | rbd.rbd_el_size = RBD_EL | (RBD_SIZE & MAXDATAZ); |
| 3178 | obram_write(ioaddr, rx + sizeof(fd), |
| 3179 | (unsigned char *) &rbd, sizeof(rbd)); |
| 3180 | |
| 3181 | lp->rx_last = rx; |
| 3182 | } |
| 3183 | |
| 3184 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_rfa_offset), |
| 3185 | (unsigned char *) &lp->rx_head, sizeof(lp->rx_head)); |
| 3186 | |
| 3187 | scb_cs = SCB_CMD_RUC_GO; |
| 3188 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_command), |
| 3189 | (unsigned char *) &scb_cs, sizeof(scb_cs)); |
| 3190 | |
| 3191 | set_chan_attn(ioaddr, lp->hacr); |
| 3192 | |
| 3193 | for (i = 1000; i > 0; i--) { |
| 3194 | obram_read(ioaddr, scboff(OFFSET_SCB, scb_command), |
| 3195 | (unsigned char *) &scb_cs, sizeof(scb_cs)); |
| 3196 | if (scb_cs == 0) |
| 3197 | break; |
| 3198 | |
| 3199 | udelay(10); |
| 3200 | } |
| 3201 | |
| 3202 | if (i <= 0) { |
| 3203 | #ifdef DEBUG_CONFIG_ERROR |
| 3204 | printk(KERN_INFO |
| 3205 | "%s: wavelan_ru_start(): board not accepting command.\n", |
| 3206 | dev->name); |
| 3207 | #endif |
| 3208 | return -1; |
| 3209 | } |
| 3210 | #ifdef DEBUG_CONFIG_TRACE |
| 3211 | printk(KERN_DEBUG "%s: <-wv_ru_start()\n", dev->name); |
| 3212 | #endif |
| 3213 | return 0; |
| 3214 | } |
| 3215 | |
| 3216 | /*------------------------------------------------------------------*/ |
| 3217 | /* |
| 3218 | * Initialise the transmit blocks. |
| 3219 | * Start the command unit executing the NOP |
| 3220 | * self-loop of the first transmit block. |
| 3221 | * |
| 3222 | * Here we create the list of send buffers used to transmit packets |
| 3223 | * between the PC and the command unit. For each buffer, we create a |
| 3224 | * buffer descriptor (pointing on the buffer), a transmit command |
| 3225 | * (pointing to the buffer descriptor) and a NOP command. |
| 3226 | * The transmit command is linked to the NOP, and the NOP to itself. |
| 3227 | * When we will have finished executing the transmit command, we will |
| 3228 | * then loop on the NOP. By releasing the NOP link to a new command, |
| 3229 | * we may send another buffer. |
| 3230 | * |
| 3231 | * (called by wv_hw_reset()) |
| 3232 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 3233 | static int wv_cu_start(struct net_device * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3234 | { |
| 3235 | net_local *lp = (net_local *) dev->priv; |
| 3236 | unsigned long ioaddr = dev->base_addr; |
| 3237 | int i; |
| 3238 | u16 txblock; |
| 3239 | u16 first_nop; |
| 3240 | u16 scb_cs; |
| 3241 | |
| 3242 | #ifdef DEBUG_CONFIG_TRACE |
| 3243 | printk(KERN_DEBUG "%s: ->wv_cu_start()\n", dev->name); |
| 3244 | #endif |
| 3245 | |
| 3246 | lp->tx_first_free = OFFSET_CU; |
| 3247 | lp->tx_first_in_use = I82586NULL; |
| 3248 | |
| 3249 | for (i = 0, txblock = OFFSET_CU; |
| 3250 | i < NTXBLOCKS; i++, txblock += TXBLOCKZ) { |
| 3251 | ac_tx_t tx; |
| 3252 | ac_nop_t nop; |
| 3253 | tbd_t tbd; |
| 3254 | unsigned short tx_addr; |
| 3255 | unsigned short nop_addr; |
| 3256 | unsigned short tbd_addr; |
| 3257 | unsigned short buf_addr; |
| 3258 | |
| 3259 | tx_addr = txblock; |
| 3260 | nop_addr = tx_addr + sizeof(tx); |
| 3261 | tbd_addr = nop_addr + sizeof(nop); |
| 3262 | buf_addr = tbd_addr + sizeof(tbd); |
| 3263 | |
| 3264 | tx.tx_h.ac_status = 0; |
| 3265 | tx.tx_h.ac_command = acmd_transmit | AC_CFLD_I; |
| 3266 | tx.tx_h.ac_link = nop_addr; |
| 3267 | tx.tx_tbd_offset = tbd_addr; |
| 3268 | obram_write(ioaddr, tx_addr, (unsigned char *) &tx, |
| 3269 | sizeof(tx)); |
| 3270 | |
| 3271 | nop.nop_h.ac_status = 0; |
| 3272 | nop.nop_h.ac_command = acmd_nop; |
| 3273 | nop.nop_h.ac_link = nop_addr; |
| 3274 | obram_write(ioaddr, nop_addr, (unsigned char *) &nop, |
| 3275 | sizeof(nop)); |
| 3276 | |
| 3277 | tbd.tbd_status = TBD_STATUS_EOF; |
| 3278 | tbd.tbd_next_bd_offset = I82586NULL; |
| 3279 | tbd.tbd_bufl = buf_addr; |
| 3280 | tbd.tbd_bufh = 0; |
| 3281 | obram_write(ioaddr, tbd_addr, (unsigned char *) &tbd, |
| 3282 | sizeof(tbd)); |
| 3283 | } |
| 3284 | |
| 3285 | first_nop = |
| 3286 | OFFSET_CU + (NTXBLOCKS - 1) * TXBLOCKZ + sizeof(ac_tx_t); |
| 3287 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_cbl_offset), |
| 3288 | (unsigned char *) &first_nop, sizeof(first_nop)); |
| 3289 | |
| 3290 | scb_cs = SCB_CMD_CUC_GO; |
| 3291 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_command), |
| 3292 | (unsigned char *) &scb_cs, sizeof(scb_cs)); |
| 3293 | |
| 3294 | set_chan_attn(ioaddr, lp->hacr); |
| 3295 | |
| 3296 | for (i = 1000; i > 0; i--) { |
| 3297 | obram_read(ioaddr, scboff(OFFSET_SCB, scb_command), |
| 3298 | (unsigned char *) &scb_cs, sizeof(scb_cs)); |
| 3299 | if (scb_cs == 0) |
| 3300 | break; |
| 3301 | |
| 3302 | udelay(10); |
| 3303 | } |
| 3304 | |
| 3305 | if (i <= 0) { |
| 3306 | #ifdef DEBUG_CONFIG_ERROR |
| 3307 | printk(KERN_INFO |
| 3308 | "%s: wavelan_cu_start(): board not accepting command.\n", |
| 3309 | dev->name); |
| 3310 | #endif |
| 3311 | return -1; |
| 3312 | } |
| 3313 | |
| 3314 | lp->tx_n_in_use = 0; |
| 3315 | netif_start_queue(dev); |
| 3316 | #ifdef DEBUG_CONFIG_TRACE |
| 3317 | printk(KERN_DEBUG "%s: <-wv_cu_start()\n", dev->name); |
| 3318 | #endif |
| 3319 | return 0; |
| 3320 | } |
| 3321 | |
| 3322 | /*------------------------------------------------------------------*/ |
| 3323 | /* |
| 3324 | * This routine does a standard configuration of the WaveLAN |
| 3325 | * controller (i82586). |
| 3326 | * |
| 3327 | * It initialises the scp, iscp and scb structure |
| 3328 | * The first two are just pointers to the next. |
| 3329 | * The last one is used for basic configuration and for basic |
| 3330 | * communication (interrupt status). |
| 3331 | * |
| 3332 | * (called by wv_hw_reset()) |
| 3333 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 3334 | static int wv_82586_start(struct net_device * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3335 | { |
| 3336 | net_local *lp = (net_local *) dev->priv; |
| 3337 | unsigned long ioaddr = dev->base_addr; |
| 3338 | scp_t scp; /* system configuration pointer */ |
| 3339 | iscp_t iscp; /* intermediate scp */ |
| 3340 | scb_t scb; /* system control block */ |
| 3341 | ach_t cb; /* Action command header */ |
| 3342 | u8 zeroes[512]; |
| 3343 | int i; |
| 3344 | |
| 3345 | #ifdef DEBUG_CONFIG_TRACE |
| 3346 | printk(KERN_DEBUG "%s: ->wv_82586_start()\n", dev->name); |
| 3347 | #endif |
| 3348 | |
| 3349 | /* |
| 3350 | * Clear the onboard RAM. |
| 3351 | */ |
| 3352 | memset(&zeroes[0], 0x00, sizeof(zeroes)); |
| 3353 | for (i = 0; i < I82586_MEMZ; i += sizeof(zeroes)) |
| 3354 | obram_write(ioaddr, i, &zeroes[0], sizeof(zeroes)); |
| 3355 | |
| 3356 | /* |
| 3357 | * Construct the command unit structures: |
| 3358 | * scp, iscp, scb, cb. |
| 3359 | */ |
| 3360 | memset(&scp, 0x00, sizeof(scp)); |
| 3361 | scp.scp_sysbus = SCP_SY_16BBUS; |
| 3362 | scp.scp_iscpl = OFFSET_ISCP; |
| 3363 | obram_write(ioaddr, OFFSET_SCP, (unsigned char *) &scp, |
| 3364 | sizeof(scp)); |
| 3365 | |
| 3366 | memset(&iscp, 0x00, sizeof(iscp)); |
| 3367 | iscp.iscp_busy = 1; |
| 3368 | iscp.iscp_offset = OFFSET_SCB; |
| 3369 | obram_write(ioaddr, OFFSET_ISCP, (unsigned char *) &iscp, |
| 3370 | sizeof(iscp)); |
| 3371 | |
| 3372 | /* Our first command is to reset the i82586. */ |
| 3373 | memset(&scb, 0x00, sizeof(scb)); |
| 3374 | scb.scb_command = SCB_CMD_RESET; |
| 3375 | scb.scb_cbl_offset = OFFSET_CU; |
| 3376 | scb.scb_rfa_offset = OFFSET_RU; |
| 3377 | obram_write(ioaddr, OFFSET_SCB, (unsigned char *) &scb, |
| 3378 | sizeof(scb)); |
| 3379 | |
| 3380 | set_chan_attn(ioaddr, lp->hacr); |
| 3381 | |
| 3382 | /* Wait for command to finish. */ |
| 3383 | for (i = 1000; i > 0; i--) { |
| 3384 | obram_read(ioaddr, OFFSET_ISCP, (unsigned char *) &iscp, |
| 3385 | sizeof(iscp)); |
| 3386 | |
| 3387 | if (iscp.iscp_busy == (unsigned short) 0) |
| 3388 | break; |
| 3389 | |
| 3390 | udelay(10); |
| 3391 | } |
| 3392 | |
| 3393 | if (i <= 0) { |
| 3394 | #ifdef DEBUG_CONFIG_ERROR |
| 3395 | printk(KERN_INFO |
| 3396 | "%s: wv_82586_start(): iscp_busy timeout.\n", |
| 3397 | dev->name); |
| 3398 | #endif |
| 3399 | return -1; |
| 3400 | } |
| 3401 | |
| 3402 | /* Check command completion. */ |
| 3403 | for (i = 15; i > 0; i--) { |
| 3404 | obram_read(ioaddr, OFFSET_SCB, (unsigned char *) &scb, |
| 3405 | sizeof(scb)); |
| 3406 | |
| 3407 | if (scb.scb_status == (SCB_ST_CX | SCB_ST_CNA)) |
| 3408 | break; |
| 3409 | |
| 3410 | udelay(10); |
| 3411 | } |
| 3412 | |
| 3413 | if (i <= 0) { |
| 3414 | #ifdef DEBUG_CONFIG_ERROR |
| 3415 | printk(KERN_INFO |
| 3416 | "%s: wv_82586_start(): status: expected 0x%02x, got 0x%02x.\n", |
| 3417 | dev->name, SCB_ST_CX | SCB_ST_CNA, scb.scb_status); |
| 3418 | #endif |
| 3419 | return -1; |
| 3420 | } |
| 3421 | |
| 3422 | wv_ack(dev); |
| 3423 | |
| 3424 | /* Set the action command header. */ |
| 3425 | memset(&cb, 0x00, sizeof(cb)); |
| 3426 | cb.ac_command = AC_CFLD_EL | (AC_CFLD_CMD & acmd_diagnose); |
| 3427 | cb.ac_link = OFFSET_CU; |
| 3428 | obram_write(ioaddr, OFFSET_CU, (unsigned char *) &cb, sizeof(cb)); |
| 3429 | |
| 3430 | if (wv_synchronous_cmd(dev, "diag()") == -1) |
| 3431 | return -1; |
| 3432 | |
| 3433 | obram_read(ioaddr, OFFSET_CU, (unsigned char *) &cb, sizeof(cb)); |
| 3434 | if (cb.ac_status & AC_SFLD_FAIL) { |
| 3435 | #ifdef DEBUG_CONFIG_ERROR |
| 3436 | printk(KERN_INFO |
| 3437 | "%s: wv_82586_start(): i82586 Self Test failed.\n", |
| 3438 | dev->name); |
| 3439 | #endif |
| 3440 | return -1; |
| 3441 | } |
| 3442 | #ifdef DEBUG_I82586_SHOW |
| 3443 | wv_scb_show(ioaddr); |
| 3444 | #endif |
| 3445 | |
| 3446 | #ifdef DEBUG_CONFIG_TRACE |
| 3447 | printk(KERN_DEBUG "%s: <-wv_82586_start()\n", dev->name); |
| 3448 | #endif |
| 3449 | return 0; |
| 3450 | } |
| 3451 | |
| 3452 | /*------------------------------------------------------------------*/ |
| 3453 | /* |
| 3454 | * This routine does a standard configuration of the WaveLAN |
| 3455 | * controller (i82586). |
| 3456 | * |
| 3457 | * This routine is a violent hack. We use the first free transmit block |
| 3458 | * to make our configuration. In the buffer area, we create the three |
| 3459 | * configuration commands (linked). We make the previous NOP point to |
| 3460 | * the beginning of the buffer instead of the tx command. After, we go |
| 3461 | * as usual to the NOP command. |
| 3462 | * Note that only the last command (mc_set) will generate an interrupt. |
| 3463 | * |
| 3464 | * (called by wv_hw_reset(), wv_82586_reconfig(), wavelan_packet_xmit()) |
| 3465 | */ |
| 3466 | static void wv_82586_config(struct net_device * dev) |
| 3467 | { |
| 3468 | net_local *lp = (net_local *) dev->priv; |
| 3469 | unsigned long ioaddr = dev->base_addr; |
| 3470 | unsigned short txblock; |
| 3471 | unsigned short txpred; |
| 3472 | unsigned short tx_addr; |
| 3473 | unsigned short nop_addr; |
| 3474 | unsigned short tbd_addr; |
| 3475 | unsigned short cfg_addr; |
| 3476 | unsigned short ias_addr; |
| 3477 | unsigned short mcs_addr; |
| 3478 | ac_tx_t tx; |
| 3479 | ac_nop_t nop; |
| 3480 | ac_cfg_t cfg; /* Configure action */ |
| 3481 | ac_ias_t ias; /* IA-setup action */ |
| 3482 | ac_mcs_t mcs; /* Multicast setup */ |
| 3483 | struct dev_mc_list *dmi; |
| 3484 | |
| 3485 | #ifdef DEBUG_CONFIG_TRACE |
| 3486 | printk(KERN_DEBUG "%s: ->wv_82586_config()\n", dev->name); |
| 3487 | #endif |
| 3488 | |
| 3489 | /* Check nothing bad has happened */ |
| 3490 | if (lp->tx_n_in_use == (NTXBLOCKS - 1)) { |
| 3491 | #ifdef DEBUG_CONFIG_ERROR |
| 3492 | printk(KERN_INFO "%s: wv_82586_config(): Tx queue full.\n", |
| 3493 | dev->name); |
| 3494 | #endif |
| 3495 | return; |
| 3496 | } |
| 3497 | |
| 3498 | /* Calculate addresses of next block and previous block. */ |
| 3499 | txblock = lp->tx_first_free; |
| 3500 | txpred = txblock - TXBLOCKZ; |
| 3501 | if (txpred < OFFSET_CU) |
| 3502 | txpred += NTXBLOCKS * TXBLOCKZ; |
| 3503 | lp->tx_first_free += TXBLOCKZ; |
| 3504 | if (lp->tx_first_free >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ) |
| 3505 | lp->tx_first_free -= NTXBLOCKS * TXBLOCKZ; |
| 3506 | |
| 3507 | lp->tx_n_in_use++; |
| 3508 | |
| 3509 | /* Calculate addresses of the different parts of the block. */ |
| 3510 | tx_addr = txblock; |
| 3511 | nop_addr = tx_addr + sizeof(tx); |
| 3512 | tbd_addr = nop_addr + sizeof(nop); |
| 3513 | cfg_addr = tbd_addr + sizeof(tbd_t); /* beginning of the buffer */ |
| 3514 | ias_addr = cfg_addr + sizeof(cfg); |
| 3515 | mcs_addr = ias_addr + sizeof(ias); |
| 3516 | |
| 3517 | /* |
| 3518 | * Transmit command |
| 3519 | */ |
| 3520 | tx.tx_h.ac_status = 0xFFFF; /* Fake completion value */ |
| 3521 | obram_write(ioaddr, toff(ac_tx_t, tx_addr, tx_h.ac_status), |
| 3522 | (unsigned char *) &tx.tx_h.ac_status, |
| 3523 | sizeof(tx.tx_h.ac_status)); |
| 3524 | |
| 3525 | /* |
| 3526 | * NOP command |
| 3527 | */ |
| 3528 | nop.nop_h.ac_status = 0; |
| 3529 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status), |
| 3530 | (unsigned char *) &nop.nop_h.ac_status, |
| 3531 | sizeof(nop.nop_h.ac_status)); |
| 3532 | nop.nop_h.ac_link = nop_addr; |
| 3533 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link), |
| 3534 | (unsigned char *) &nop.nop_h.ac_link, |
| 3535 | sizeof(nop.nop_h.ac_link)); |
| 3536 | |
| 3537 | /* Create a configure action. */ |
| 3538 | memset(&cfg, 0x00, sizeof(cfg)); |
| 3539 | |
| 3540 | /* |
| 3541 | * For Linux we invert AC_CFG_ALOC() so as to conform |
| 3542 | * to the way that net packets reach us from above. |
| 3543 | * (See also ac_tx_t.) |
| 3544 | * |
| 3545 | * Updated from Wavelan Manual WCIN085B |
| 3546 | */ |
| 3547 | cfg.cfg_byte_cnt = |
| 3548 | AC_CFG_BYTE_CNT(sizeof(ac_cfg_t) - sizeof(ach_t)); |
| 3549 | cfg.cfg_fifolim = AC_CFG_FIFOLIM(4); |
| 3550 | cfg.cfg_byte8 = AC_CFG_SAV_BF(1) | AC_CFG_SRDY(0); |
| 3551 | cfg.cfg_byte9 = AC_CFG_ELPBCK(0) | |
| 3552 | AC_CFG_ILPBCK(0) | |
| 3553 | AC_CFG_PRELEN(AC_CFG_PLEN_2) | |
| 3554 | AC_CFG_ALOC(1) | AC_CFG_ADDRLEN(WAVELAN_ADDR_SIZE); |
| 3555 | cfg.cfg_byte10 = AC_CFG_BOFMET(1) | |
| 3556 | AC_CFG_ACR(6) | AC_CFG_LINPRIO(0); |
| 3557 | cfg.cfg_ifs = 0x20; |
| 3558 | cfg.cfg_slotl = 0x0C; |
| 3559 | cfg.cfg_byte13 = AC_CFG_RETRYNUM(15) | AC_CFG_SLTTMHI(0); |
| 3560 | cfg.cfg_byte14 = AC_CFG_FLGPAD(0) | |
| 3561 | AC_CFG_BTSTF(0) | |
| 3562 | AC_CFG_CRC16(0) | |
| 3563 | AC_CFG_NCRC(0) | |
| 3564 | AC_CFG_TNCRS(1) | |
| 3565 | AC_CFG_MANCH(0) | |
| 3566 | AC_CFG_BCDIS(0) | AC_CFG_PRM(lp->promiscuous); |
| 3567 | cfg.cfg_byte15 = AC_CFG_ICDS(0) | |
| 3568 | AC_CFG_CDTF(0) | AC_CFG_ICSS(0) | AC_CFG_CSTF(0); |
| 3569 | /* |
| 3570 | cfg.cfg_min_frm_len = AC_CFG_MNFRM(64); |
| 3571 | */ |
| 3572 | cfg.cfg_min_frm_len = AC_CFG_MNFRM(8); |
| 3573 | |
| 3574 | cfg.cfg_h.ac_command = (AC_CFLD_CMD & acmd_configure); |
| 3575 | cfg.cfg_h.ac_link = ias_addr; |
| 3576 | obram_write(ioaddr, cfg_addr, (unsigned char *) &cfg, sizeof(cfg)); |
| 3577 | |
| 3578 | /* Set up the MAC address */ |
| 3579 | memset(&ias, 0x00, sizeof(ias)); |
| 3580 | ias.ias_h.ac_command = (AC_CFLD_CMD & acmd_ia_setup); |
| 3581 | ias.ias_h.ac_link = mcs_addr; |
| 3582 | memcpy(&ias.ias_addr[0], (unsigned char *) &dev->dev_addr[0], |
| 3583 | sizeof(ias.ias_addr)); |
| 3584 | obram_write(ioaddr, ias_addr, (unsigned char *) &ias, sizeof(ias)); |
| 3585 | |
| 3586 | /* Initialize adapter's Ethernet multicast addresses */ |
| 3587 | memset(&mcs, 0x00, sizeof(mcs)); |
| 3588 | mcs.mcs_h.ac_command = AC_CFLD_I | (AC_CFLD_CMD & acmd_mc_setup); |
| 3589 | mcs.mcs_h.ac_link = nop_addr; |
| 3590 | mcs.mcs_cnt = WAVELAN_ADDR_SIZE * lp->mc_count; |
| 3591 | obram_write(ioaddr, mcs_addr, (unsigned char *) &mcs, sizeof(mcs)); |
| 3592 | |
| 3593 | /* Any address to set? */ |
| 3594 | if (lp->mc_count) { |
| 3595 | for (dmi = dev->mc_list; dmi; dmi = dmi->next) |
| 3596 | outsw(PIOP1(ioaddr), (u16 *) dmi->dmi_addr, |
| 3597 | WAVELAN_ADDR_SIZE >> 1); |
| 3598 | |
| 3599 | #ifdef DEBUG_CONFIG_INFO |
| 3600 | printk(KERN_DEBUG |
| 3601 | "%s: wv_82586_config(): set %d multicast addresses:\n", |
| 3602 | dev->name, lp->mc_count); |
| 3603 | for (dmi = dev->mc_list; dmi; dmi = dmi->next) |
| 3604 | printk(KERN_DEBUG |
| 3605 | " %02x:%02x:%02x:%02x:%02x:%02x\n", |
| 3606 | dmi->dmi_addr[0], dmi->dmi_addr[1], |
| 3607 | dmi->dmi_addr[2], dmi->dmi_addr[3], |
| 3608 | dmi->dmi_addr[4], dmi->dmi_addr[5]); |
| 3609 | #endif |
| 3610 | } |
| 3611 | |
| 3612 | /* |
| 3613 | * Overwrite the predecessor NOP link |
| 3614 | * so that it points to the configure action. |
| 3615 | */ |
| 3616 | nop_addr = txpred + sizeof(tx); |
| 3617 | nop.nop_h.ac_status = 0; |
| 3618 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status), |
| 3619 | (unsigned char *) &nop.nop_h.ac_status, |
| 3620 | sizeof(nop.nop_h.ac_status)); |
| 3621 | nop.nop_h.ac_link = cfg_addr; |
| 3622 | obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link), |
| 3623 | (unsigned char *) &nop.nop_h.ac_link, |
| 3624 | sizeof(nop.nop_h.ac_link)); |
| 3625 | |
| 3626 | /* Job done, clear the flag */ |
| 3627 | lp->reconfig_82586 = 0; |
| 3628 | |
| 3629 | if (lp->tx_first_in_use == I82586NULL) |
| 3630 | lp->tx_first_in_use = txblock; |
| 3631 | |
| 3632 | if (lp->tx_n_in_use == (NTXBLOCKS - 1)) |
| 3633 | netif_stop_queue(dev); |
| 3634 | |
| 3635 | #ifdef DEBUG_CONFIG_TRACE |
| 3636 | printk(KERN_DEBUG "%s: <-wv_82586_config()\n", dev->name); |
| 3637 | #endif |
| 3638 | } |
| 3639 | |
| 3640 | /*------------------------------------------------------------------*/ |
| 3641 | /* |
| 3642 | * This routine, called by wavelan_close(), gracefully stops the |
| 3643 | * WaveLAN controller (i82586). |
| 3644 | * (called by wavelan_close()) |
| 3645 | */ |
Arjan van de Ven | 858119e | 2006-01-14 13:20:43 -0800 | [diff] [blame] | 3646 | static void wv_82586_stop(struct net_device * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3647 | { |
| 3648 | net_local *lp = (net_local *) dev->priv; |
| 3649 | unsigned long ioaddr = dev->base_addr; |
| 3650 | u16 scb_cmd; |
| 3651 | |
| 3652 | #ifdef DEBUG_CONFIG_TRACE |
| 3653 | printk(KERN_DEBUG "%s: ->wv_82586_stop()\n", dev->name); |
| 3654 | #endif |
| 3655 | |
| 3656 | /* Suspend both command unit and receive unit. */ |
| 3657 | scb_cmd = |
| 3658 | (SCB_CMD_CUC & SCB_CMD_CUC_SUS) | (SCB_CMD_RUC & |
| 3659 | SCB_CMD_RUC_SUS); |
| 3660 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_command), |
| 3661 | (unsigned char *) &scb_cmd, sizeof(scb_cmd)); |
| 3662 | set_chan_attn(ioaddr, lp->hacr); |
| 3663 | |
| 3664 | /* No more interrupts */ |
| 3665 | wv_ints_off(dev); |
| 3666 | |
| 3667 | #ifdef DEBUG_CONFIG_TRACE |
| 3668 | printk(KERN_DEBUG "%s: <-wv_82586_stop()\n", dev->name); |
| 3669 | #endif |
| 3670 | } |
| 3671 | |
| 3672 | /*------------------------------------------------------------------*/ |
| 3673 | /* |
| 3674 | * Totally reset the WaveLAN and restart it. |
| 3675 | * Performs the following actions: |
| 3676 | * 1. A power reset (reset DMA) |
| 3677 | * 2. Initialize the radio modem (using wv_mmc_init) |
| 3678 | * 3. Reset & Configure LAN controller (using wv_82586_start) |
| 3679 | * 4. Start the LAN controller's command unit |
| 3680 | * 5. Start the LAN controller's receive unit |
| 3681 | * (called by wavelan_interrupt(), wavelan_watchdog() & wavelan_open()) |
| 3682 | */ |
| 3683 | static int wv_hw_reset(struct net_device * dev) |
| 3684 | { |
| 3685 | net_local *lp = (net_local *) dev->priv; |
| 3686 | unsigned long ioaddr = dev->base_addr; |
| 3687 | |
| 3688 | #ifdef DEBUG_CONFIG_TRACE |
| 3689 | printk(KERN_DEBUG "%s: ->wv_hw_reset(dev=0x%x)\n", dev->name, |
| 3690 | (unsigned int) dev); |
| 3691 | #endif |
| 3692 | |
| 3693 | /* Increase the number of resets done. */ |
| 3694 | lp->nresets++; |
| 3695 | |
| 3696 | wv_hacr_reset(ioaddr); |
| 3697 | lp->hacr = HACR_DEFAULT; |
| 3698 | |
| 3699 | if ((wv_mmc_init(dev) < 0) || (wv_82586_start(dev) < 0)) |
| 3700 | return -1; |
| 3701 | |
| 3702 | /* Enable the card to send interrupts. */ |
| 3703 | wv_ints_on(dev); |
| 3704 | |
| 3705 | /* Start card functions */ |
| 3706 | if (wv_cu_start(dev) < 0) |
| 3707 | return -1; |
| 3708 | |
| 3709 | /* Setup the controller and parameters */ |
| 3710 | wv_82586_config(dev); |
| 3711 | |
| 3712 | /* Finish configuration with the receive unit */ |
| 3713 | if (wv_ru_start(dev) < 0) |
| 3714 | return -1; |
| 3715 | |
| 3716 | #ifdef DEBUG_CONFIG_TRACE |
| 3717 | printk(KERN_DEBUG "%s: <-wv_hw_reset()\n", dev->name); |
| 3718 | #endif |
| 3719 | return 0; |
| 3720 | } |
| 3721 | |
| 3722 | /*------------------------------------------------------------------*/ |
| 3723 | /* |
| 3724 | * Check if there is a WaveLAN at the specific base address. |
| 3725 | * As a side effect, this reads the MAC address. |
| 3726 | * (called in wavelan_probe() and init_module()) |
| 3727 | */ |
| 3728 | static int wv_check_ioaddr(unsigned long ioaddr, u8 * mac) |
| 3729 | { |
| 3730 | int i; /* Loop counter */ |
| 3731 | |
| 3732 | /* Check if the base address if available. */ |
| 3733 | if (!request_region(ioaddr, sizeof(ha_t), "wavelan probe")) |
| 3734 | return -EBUSY; /* ioaddr already used */ |
| 3735 | |
| 3736 | /* Reset host interface */ |
| 3737 | wv_hacr_reset(ioaddr); |
| 3738 | |
| 3739 | /* Read the MAC address from the parameter storage area. */ |
| 3740 | psa_read(ioaddr, HACR_DEFAULT, psaoff(0, psa_univ_mac_addr), |
| 3741 | mac, 6); |
| 3742 | |
| 3743 | release_region(ioaddr, sizeof(ha_t)); |
| 3744 | |
| 3745 | /* |
| 3746 | * Check the first three octets of the address for the manufacturer's code. |
| 3747 | * Note: if this can't find your WaveLAN card, you've got a |
| 3748 | * non-NCR/AT&T/Lucent ISA card. See wavelan.p.h for detail on |
| 3749 | * how to configure your card. |
| 3750 | */ |
| 3751 | for (i = 0; i < (sizeof(MAC_ADDRESSES) / sizeof(char) / 3); i++) |
| 3752 | if ((mac[0] == MAC_ADDRESSES[i][0]) && |
| 3753 | (mac[1] == MAC_ADDRESSES[i][1]) && |
| 3754 | (mac[2] == MAC_ADDRESSES[i][2])) |
| 3755 | return 0; |
| 3756 | |
| 3757 | #ifdef DEBUG_CONFIG_INFO |
| 3758 | printk(KERN_WARNING |
| 3759 | "WaveLAN (0x%3X): your MAC address might be %02X:%02X:%02X.\n", |
| 3760 | ioaddr, mac[0], mac[1], mac[2]); |
| 3761 | #endif |
| 3762 | return -ENODEV; |
| 3763 | } |
| 3764 | |
| 3765 | /************************ INTERRUPT HANDLING ************************/ |
| 3766 | |
| 3767 | /* |
| 3768 | * This function is the interrupt handler for the WaveLAN card. This |
| 3769 | * routine will be called whenever: |
| 3770 | */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame^] | 3771 | static irqreturn_t wavelan_interrupt(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3772 | { |
| 3773 | struct net_device *dev; |
| 3774 | unsigned long ioaddr; |
| 3775 | net_local *lp; |
| 3776 | u16 hasr; |
| 3777 | u16 status; |
| 3778 | u16 ack_cmd; |
| 3779 | |
| 3780 | dev = dev_id; |
| 3781 | |
| 3782 | #ifdef DEBUG_INTERRUPT_TRACE |
| 3783 | printk(KERN_DEBUG "%s: ->wavelan_interrupt()\n", dev->name); |
| 3784 | #endif |
| 3785 | |
| 3786 | lp = (net_local *) dev->priv; |
| 3787 | ioaddr = dev->base_addr; |
| 3788 | |
| 3789 | #ifdef DEBUG_INTERRUPT_INFO |
| 3790 | /* Check state of our spinlock */ |
| 3791 | if(spin_is_locked(&lp->spinlock)) |
| 3792 | printk(KERN_DEBUG |
| 3793 | "%s: wavelan_interrupt(): spinlock is already locked !!!\n", |
| 3794 | dev->name); |
| 3795 | #endif |
| 3796 | |
| 3797 | /* Prevent reentrancy. We need to do that because we may have |
| 3798 | * multiple interrupt handler running concurrently. |
| 3799 | * It is safe because interrupts are disabled before acquiring |
| 3800 | * the spinlock. */ |
| 3801 | spin_lock(&lp->spinlock); |
| 3802 | |
| 3803 | /* We always had spurious interrupts at startup, but lately I |
| 3804 | * saw them comming *between* the request_irq() and the |
| 3805 | * spin_lock_irqsave() in wavelan_open(), so the spinlock |
| 3806 | * protection is no enough. |
| 3807 | * So, we also check lp->hacr that will tell us is we enabled |
| 3808 | * irqs or not (see wv_ints_on()). |
| 3809 | * We can't use netif_running(dev) because we depend on the |
| 3810 | * proper processing of the irq generated during the config. */ |
| 3811 | |
| 3812 | /* Which interrupt it is ? */ |
| 3813 | hasr = hasr_read(ioaddr); |
| 3814 | |
| 3815 | #ifdef DEBUG_INTERRUPT_INFO |
| 3816 | printk(KERN_INFO |
| 3817 | "%s: wavelan_interrupt(): hasr 0x%04x; hacr 0x%04x.\n", |
| 3818 | dev->name, hasr, lp->hacr); |
| 3819 | #endif |
| 3820 | |
| 3821 | /* Check modem interrupt */ |
| 3822 | if ((hasr & HASR_MMC_INTR) && (lp->hacr & HACR_MMC_INT_ENABLE)) { |
| 3823 | u8 dce_status; |
| 3824 | |
| 3825 | /* |
| 3826 | * Interrupt from the modem management controller. |
| 3827 | * This will clear it -- ignored for now. |
| 3828 | */ |
| 3829 | mmc_read(ioaddr, mmroff(0, mmr_dce_status), &dce_status, |
| 3830 | sizeof(dce_status)); |
| 3831 | |
| 3832 | #ifdef DEBUG_INTERRUPT_ERROR |
| 3833 | printk(KERN_INFO |
| 3834 | "%s: wavelan_interrupt(): unexpected mmc interrupt: status 0x%04x.\n", |
| 3835 | dev->name, dce_status); |
| 3836 | #endif |
| 3837 | } |
| 3838 | |
| 3839 | /* Check if not controller interrupt */ |
| 3840 | if (((hasr & HASR_82586_INTR) == 0) || |
| 3841 | ((lp->hacr & HACR_82586_INT_ENABLE) == 0)) { |
| 3842 | #ifdef DEBUG_INTERRUPT_ERROR |
| 3843 | printk(KERN_INFO |
| 3844 | "%s: wavelan_interrupt(): interrupt not coming from i82586 - hasr 0x%04x.\n", |
| 3845 | dev->name, hasr); |
| 3846 | #endif |
| 3847 | spin_unlock (&lp->spinlock); |
| 3848 | return IRQ_NONE; |
| 3849 | } |
| 3850 | |
| 3851 | /* Read interrupt data. */ |
| 3852 | obram_read(ioaddr, scboff(OFFSET_SCB, scb_status), |
| 3853 | (unsigned char *) &status, sizeof(status)); |
| 3854 | |
| 3855 | /* |
| 3856 | * Acknowledge the interrupt(s). |
| 3857 | */ |
| 3858 | ack_cmd = status & SCB_ST_INT; |
| 3859 | obram_write(ioaddr, scboff(OFFSET_SCB, scb_command), |
| 3860 | (unsigned char *) &ack_cmd, sizeof(ack_cmd)); |
| 3861 | set_chan_attn(ioaddr, lp->hacr); |
| 3862 | |
| 3863 | #ifdef DEBUG_INTERRUPT_INFO |
| 3864 | printk(KERN_DEBUG "%s: wavelan_interrupt(): status 0x%04x.\n", |
| 3865 | dev->name, status); |
| 3866 | #endif |
| 3867 | |
| 3868 | /* Command completed. */ |
| 3869 | if ((status & SCB_ST_CX) == SCB_ST_CX) { |
| 3870 | #ifdef DEBUG_INTERRUPT_INFO |
| 3871 | printk(KERN_DEBUG |
| 3872 | "%s: wavelan_interrupt(): command completed.\n", |
| 3873 | dev->name); |
| 3874 | #endif |
| 3875 | wv_complete(dev, ioaddr, lp); |
| 3876 | } |
| 3877 | |
| 3878 | /* Frame received. */ |
| 3879 | if ((status & SCB_ST_FR) == SCB_ST_FR) { |
| 3880 | #ifdef DEBUG_INTERRUPT_INFO |
| 3881 | printk(KERN_DEBUG |
| 3882 | "%s: wavelan_interrupt(): received packet.\n", |
| 3883 | dev->name); |
| 3884 | #endif |
| 3885 | wv_receive(dev); |
| 3886 | } |
| 3887 | |
| 3888 | /* Check the state of the command unit. */ |
| 3889 | if (((status & SCB_ST_CNA) == SCB_ST_CNA) || |
| 3890 | (((status & SCB_ST_CUS) != SCB_ST_CUS_ACTV) && |
| 3891 | (netif_running(dev)))) { |
| 3892 | #ifdef DEBUG_INTERRUPT_ERROR |
| 3893 | printk(KERN_INFO |
| 3894 | "%s: wavelan_interrupt(): CU inactive -- restarting\n", |
| 3895 | dev->name); |
| 3896 | #endif |
| 3897 | wv_hw_reset(dev); |
| 3898 | } |
| 3899 | |
| 3900 | /* Check the state of the command unit. */ |
| 3901 | if (((status & SCB_ST_RNR) == SCB_ST_RNR) || |
| 3902 | (((status & SCB_ST_RUS) != SCB_ST_RUS_RDY) && |
| 3903 | (netif_running(dev)))) { |
| 3904 | #ifdef DEBUG_INTERRUPT_ERROR |
| 3905 | printk(KERN_INFO |
| 3906 | "%s: wavelan_interrupt(): RU not ready -- restarting\n", |
| 3907 | dev->name); |
| 3908 | #endif |
| 3909 | wv_hw_reset(dev); |
| 3910 | } |
| 3911 | |
| 3912 | /* Release spinlock */ |
| 3913 | spin_unlock (&lp->spinlock); |
| 3914 | |
| 3915 | #ifdef DEBUG_INTERRUPT_TRACE |
| 3916 | printk(KERN_DEBUG "%s: <-wavelan_interrupt()\n", dev->name); |
| 3917 | #endif |
| 3918 | return IRQ_HANDLED; |
| 3919 | } |
| 3920 | |
| 3921 | /*------------------------------------------------------------------*/ |
| 3922 | /* |
| 3923 | * Watchdog: when we start a transmission, a timer is set for us in the |
| 3924 | * kernel. If the transmission completes, this timer is disabled. If |
| 3925 | * the timer expires, we are called and we try to unlock the hardware. |
| 3926 | */ |
| 3927 | static void wavelan_watchdog(struct net_device * dev) |
| 3928 | { |
| 3929 | net_local * lp = (net_local *)dev->priv; |
| 3930 | u_long ioaddr = dev->base_addr; |
| 3931 | unsigned long flags; |
| 3932 | unsigned int nreaped; |
| 3933 | |
| 3934 | #ifdef DEBUG_INTERRUPT_TRACE |
| 3935 | printk(KERN_DEBUG "%s: ->wavelan_watchdog()\n", dev->name); |
| 3936 | #endif |
| 3937 | |
| 3938 | #ifdef DEBUG_INTERRUPT_ERROR |
| 3939 | printk(KERN_INFO "%s: wavelan_watchdog: watchdog timer expired\n", |
| 3940 | dev->name); |
| 3941 | #endif |
| 3942 | |
| 3943 | /* Check that we came here for something */ |
| 3944 | if (lp->tx_n_in_use <= 0) { |
| 3945 | return; |
| 3946 | } |
| 3947 | |
| 3948 | spin_lock_irqsave(&lp->spinlock, flags); |
| 3949 | |
| 3950 | /* Try to see if some buffers are not free (in case we missed |
| 3951 | * an interrupt */ |
| 3952 | nreaped = wv_complete(dev, ioaddr, lp); |
| 3953 | |
| 3954 | #ifdef DEBUG_INTERRUPT_INFO |
| 3955 | printk(KERN_DEBUG |
| 3956 | "%s: wavelan_watchdog(): %d reaped, %d remain.\n", |
| 3957 | dev->name, nreaped, lp->tx_n_in_use); |
| 3958 | #endif |
| 3959 | |
| 3960 | #ifdef DEBUG_PSA_SHOW |
| 3961 | { |
| 3962 | psa_t psa; |
| 3963 | psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa)); |
| 3964 | wv_psa_show(&psa); |
| 3965 | } |
| 3966 | #endif |
| 3967 | #ifdef DEBUG_MMC_SHOW |
| 3968 | wv_mmc_show(dev); |
| 3969 | #endif |
| 3970 | #ifdef DEBUG_I82586_SHOW |
| 3971 | wv_cu_show(dev); |
| 3972 | #endif |
| 3973 | |
| 3974 | /* If no buffer has been freed */ |
| 3975 | if (nreaped == 0) { |
| 3976 | #ifdef DEBUG_INTERRUPT_ERROR |
| 3977 | printk(KERN_INFO |
| 3978 | "%s: wavelan_watchdog(): cleanup failed, trying reset\n", |
| 3979 | dev->name); |
| 3980 | #endif |
| 3981 | wv_hw_reset(dev); |
| 3982 | } |
| 3983 | |
| 3984 | /* At this point, we should have some free Tx buffer ;-) */ |
| 3985 | if (lp->tx_n_in_use < NTXBLOCKS - 1) |
| 3986 | netif_wake_queue(dev); |
| 3987 | |
| 3988 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 3989 | |
| 3990 | #ifdef DEBUG_INTERRUPT_TRACE |
| 3991 | printk(KERN_DEBUG "%s: <-wavelan_watchdog()\n", dev->name); |
| 3992 | #endif |
| 3993 | } |
| 3994 | |
| 3995 | /********************* CONFIGURATION CALLBACKS *********************/ |
| 3996 | /* |
| 3997 | * Here are the functions called by the Linux networking code (NET3) |
| 3998 | * for initialization, configuration and deinstallations of the |
| 3999 | * WaveLAN ISA hardware. |
| 4000 | */ |
| 4001 | |
| 4002 | /*------------------------------------------------------------------*/ |
| 4003 | /* |
| 4004 | * Configure and start up the WaveLAN PCMCIA adaptor. |
| 4005 | * Called by NET3 when it "opens" the device. |
| 4006 | */ |
| 4007 | static int wavelan_open(struct net_device * dev) |
| 4008 | { |
| 4009 | net_local * lp = (net_local *)dev->priv; |
| 4010 | unsigned long flags; |
| 4011 | |
| 4012 | #ifdef DEBUG_CALLBACK_TRACE |
| 4013 | printk(KERN_DEBUG "%s: ->wavelan_open(dev=0x%x)\n", dev->name, |
| 4014 | (unsigned int) dev); |
| 4015 | #endif |
| 4016 | |
| 4017 | /* Check irq */ |
| 4018 | if (dev->irq == 0) { |
| 4019 | #ifdef DEBUG_CONFIG_ERROR |
| 4020 | printk(KERN_WARNING "%s: wavelan_open(): no IRQ\n", |
| 4021 | dev->name); |
| 4022 | #endif |
| 4023 | return -ENXIO; |
| 4024 | } |
| 4025 | |
| 4026 | if (request_irq(dev->irq, &wavelan_interrupt, 0, "WaveLAN", dev) != 0) |
| 4027 | { |
| 4028 | #ifdef DEBUG_CONFIG_ERROR |
| 4029 | printk(KERN_WARNING "%s: wavelan_open(): invalid IRQ\n", |
| 4030 | dev->name); |
| 4031 | #endif |
| 4032 | return -EAGAIN; |
| 4033 | } |
| 4034 | |
| 4035 | spin_lock_irqsave(&lp->spinlock, flags); |
| 4036 | |
| 4037 | if (wv_hw_reset(dev) != -1) { |
| 4038 | netif_start_queue(dev); |
| 4039 | } else { |
| 4040 | free_irq(dev->irq, dev); |
| 4041 | #ifdef DEBUG_CONFIG_ERROR |
| 4042 | printk(KERN_INFO |
| 4043 | "%s: wavelan_open(): impossible to start the card\n", |
| 4044 | dev->name); |
| 4045 | #endif |
| 4046 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 4047 | return -EAGAIN; |
| 4048 | } |
| 4049 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 4050 | |
| 4051 | #ifdef DEBUG_CALLBACK_TRACE |
| 4052 | printk(KERN_DEBUG "%s: <-wavelan_open()\n", dev->name); |
| 4053 | #endif |
| 4054 | return 0; |
| 4055 | } |
| 4056 | |
| 4057 | /*------------------------------------------------------------------*/ |
| 4058 | /* |
| 4059 | * Shut down the WaveLAN ISA card. |
| 4060 | * Called by NET3 when it "closes" the device. |
| 4061 | */ |
| 4062 | static int wavelan_close(struct net_device * dev) |
| 4063 | { |
| 4064 | net_local *lp = (net_local *) dev->priv; |
| 4065 | unsigned long flags; |
| 4066 | |
| 4067 | #ifdef DEBUG_CALLBACK_TRACE |
| 4068 | printk(KERN_DEBUG "%s: ->wavelan_close(dev=0x%x)\n", dev->name, |
| 4069 | (unsigned int) dev); |
| 4070 | #endif |
| 4071 | |
| 4072 | netif_stop_queue(dev); |
| 4073 | |
| 4074 | /* |
| 4075 | * Flush the Tx and disable Rx. |
| 4076 | */ |
| 4077 | spin_lock_irqsave(&lp->spinlock, flags); |
| 4078 | wv_82586_stop(dev); |
| 4079 | spin_unlock_irqrestore(&lp->spinlock, flags); |
| 4080 | |
| 4081 | free_irq(dev->irq, dev); |
| 4082 | |
| 4083 | #ifdef DEBUG_CALLBACK_TRACE |
| 4084 | printk(KERN_DEBUG "%s: <-wavelan_close()\n", dev->name); |
| 4085 | #endif |
| 4086 | return 0; |
| 4087 | } |
| 4088 | |
| 4089 | /*------------------------------------------------------------------*/ |
| 4090 | /* |
| 4091 | * Probe an I/O address, and if the WaveLAN is there configure the |
| 4092 | * device structure |
| 4093 | * (called by wavelan_probe() and via init_module()). |
| 4094 | */ |
| 4095 | static int __init wavelan_config(struct net_device *dev, unsigned short ioaddr) |
| 4096 | { |
| 4097 | u8 irq_mask; |
| 4098 | int irq; |
| 4099 | net_local *lp; |
| 4100 | mac_addr mac; |
| 4101 | int err; |
| 4102 | |
| 4103 | if (!request_region(ioaddr, sizeof(ha_t), "wavelan")) |
| 4104 | return -EADDRINUSE; |
| 4105 | |
| 4106 | err = wv_check_ioaddr(ioaddr, mac); |
| 4107 | if (err) |
| 4108 | goto out; |
| 4109 | |
| 4110 | memcpy(dev->dev_addr, mac, 6); |
| 4111 | |
| 4112 | dev->base_addr = ioaddr; |
| 4113 | |
| 4114 | #ifdef DEBUG_CALLBACK_TRACE |
| 4115 | printk(KERN_DEBUG "%s: ->wavelan_config(dev=0x%x, ioaddr=0x%lx)\n", |
| 4116 | dev->name, (unsigned int) dev, ioaddr); |
| 4117 | #endif |
| 4118 | |
| 4119 | /* Check IRQ argument on command line. */ |
| 4120 | if (dev->irq != 0) { |
| 4121 | irq_mask = wv_irq_to_psa(dev->irq); |
| 4122 | |
| 4123 | if (irq_mask == 0) { |
| 4124 | #ifdef DEBUG_CONFIG_ERROR |
| 4125 | printk(KERN_WARNING |
| 4126 | "%s: wavelan_config(): invalid IRQ %d ignored.\n", |
| 4127 | dev->name, dev->irq); |
| 4128 | #endif |
| 4129 | dev->irq = 0; |
| 4130 | } else { |
| 4131 | #ifdef DEBUG_CONFIG_INFO |
| 4132 | printk(KERN_DEBUG |
| 4133 | "%s: wavelan_config(): changing IRQ to %d\n", |
| 4134 | dev->name, dev->irq); |
| 4135 | #endif |
| 4136 | psa_write(ioaddr, HACR_DEFAULT, |
| 4137 | psaoff(0, psa_int_req_no), &irq_mask, 1); |
| 4138 | /* update the Wavelan checksum */ |
| 4139 | update_psa_checksum(dev, ioaddr, HACR_DEFAULT); |
| 4140 | wv_hacr_reset(ioaddr); |
| 4141 | } |
| 4142 | } |
| 4143 | |
| 4144 | psa_read(ioaddr, HACR_DEFAULT, psaoff(0, psa_int_req_no), |
| 4145 | &irq_mask, 1); |
| 4146 | if ((irq = wv_psa_to_irq(irq_mask)) == -1) { |
| 4147 | #ifdef DEBUG_CONFIG_ERROR |
| 4148 | printk(KERN_INFO |
| 4149 | "%s: wavelan_config(): could not wavelan_map_irq(%d).\n", |
| 4150 | dev->name, irq_mask); |
| 4151 | #endif |
| 4152 | err = -EAGAIN; |
| 4153 | goto out; |
| 4154 | } |
| 4155 | |
| 4156 | dev->irq = irq; |
| 4157 | |
| 4158 | dev->mem_start = 0x0000; |
| 4159 | dev->mem_end = 0x0000; |
| 4160 | dev->if_port = 0; |
| 4161 | |
| 4162 | /* Initialize device structures */ |
| 4163 | memset(dev->priv, 0, sizeof(net_local)); |
| 4164 | lp = (net_local *) dev->priv; |
| 4165 | |
| 4166 | /* Back link to the device structure. */ |
| 4167 | lp->dev = dev; |
| 4168 | /* Add the device at the beginning of the linked list. */ |
| 4169 | lp->next = wavelan_list; |
| 4170 | wavelan_list = lp; |
| 4171 | |
| 4172 | lp->hacr = HACR_DEFAULT; |
| 4173 | |
| 4174 | /* Multicast stuff */ |
| 4175 | lp->promiscuous = 0; |
| 4176 | lp->mc_count = 0; |
| 4177 | |
| 4178 | /* Init spinlock */ |
| 4179 | spin_lock_init(&lp->spinlock); |
| 4180 | |
| 4181 | SET_MODULE_OWNER(dev); |
| 4182 | dev->open = wavelan_open; |
| 4183 | dev->stop = wavelan_close; |
| 4184 | dev->hard_start_xmit = wavelan_packet_xmit; |
| 4185 | dev->get_stats = wavelan_get_stats; |
| 4186 | dev->set_multicast_list = &wavelan_set_multicast_list; |
| 4187 | dev->tx_timeout = &wavelan_watchdog; |
| 4188 | dev->watchdog_timeo = WATCHDOG_JIFFIES; |
| 4189 | #ifdef SET_MAC_ADDRESS |
| 4190 | dev->set_mac_address = &wavelan_set_mac_address; |
| 4191 | #endif /* SET_MAC_ADDRESS */ |
| 4192 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4193 | dev->wireless_handlers = &wavelan_handler_def; |
| 4194 | lp->wireless_data.spy_data = &lp->spy_data; |
| 4195 | dev->wireless_data = &lp->wireless_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4196 | |
| 4197 | dev->mtu = WAVELAN_MTU; |
| 4198 | |
| 4199 | /* Display nice information. */ |
| 4200 | wv_init_info(dev); |
| 4201 | |
| 4202 | #ifdef DEBUG_CALLBACK_TRACE |
| 4203 | printk(KERN_DEBUG "%s: <-wavelan_config()\n", dev->name); |
| 4204 | #endif |
| 4205 | return 0; |
| 4206 | out: |
| 4207 | release_region(ioaddr, sizeof(ha_t)); |
| 4208 | return err; |
| 4209 | } |
| 4210 | |
| 4211 | /*------------------------------------------------------------------*/ |
| 4212 | /* |
| 4213 | * Check for a network adaptor of this type. Return '0' iff one |
| 4214 | * exists. There seem to be different interpretations of |
| 4215 | * the initial value of dev->base_addr. |
| 4216 | * We follow the example in drivers/net/ne.c. |
| 4217 | * (called in "Space.c") |
| 4218 | */ |
| 4219 | struct net_device * __init wavelan_probe(int unit) |
| 4220 | { |
| 4221 | struct net_device *dev; |
| 4222 | short base_addr; |
| 4223 | int def_irq; |
| 4224 | int i; |
| 4225 | int r = 0; |
| 4226 | |
| 4227 | #ifdef STRUCT_CHECK |
| 4228 | if (wv_struct_check() != (char *) NULL) { |
| 4229 | printk(KERN_WARNING |
| 4230 | "%s: wavelan_probe(): structure/compiler botch: \"%s\"\n", |
| 4231 | dev->name, wv_struct_check()); |
| 4232 | return -ENODEV; |
| 4233 | } |
| 4234 | #endif /* STRUCT_CHECK */ |
| 4235 | |
| 4236 | dev = alloc_etherdev(sizeof(net_local)); |
| 4237 | if (!dev) |
| 4238 | return ERR_PTR(-ENOMEM); |
| 4239 | |
| 4240 | sprintf(dev->name, "eth%d", unit); |
| 4241 | netdev_boot_setup_check(dev); |
| 4242 | base_addr = dev->base_addr; |
| 4243 | def_irq = dev->irq; |
| 4244 | |
| 4245 | #ifdef DEBUG_CALLBACK_TRACE |
| 4246 | printk(KERN_DEBUG |
| 4247 | "%s: ->wavelan_probe(dev=%p (base_addr=0x%x))\n", |
| 4248 | dev->name, dev, (unsigned int) dev->base_addr); |
| 4249 | #endif |
| 4250 | |
| 4251 | /* Don't probe at all. */ |
| 4252 | if (base_addr < 0) { |
| 4253 | #ifdef DEBUG_CONFIG_ERROR |
| 4254 | printk(KERN_WARNING |
| 4255 | "%s: wavelan_probe(): invalid base address\n", |
| 4256 | dev->name); |
| 4257 | #endif |
| 4258 | r = -ENXIO; |
| 4259 | } else if (base_addr > 0x100) { /* Check a single specified location. */ |
| 4260 | r = wavelan_config(dev, base_addr); |
| 4261 | #ifdef DEBUG_CONFIG_INFO |
| 4262 | if (r != 0) |
| 4263 | printk(KERN_DEBUG |
| 4264 | "%s: wavelan_probe(): no device at specified base address (0x%X) or address already in use\n", |
| 4265 | dev->name, base_addr); |
| 4266 | #endif |
| 4267 | |
| 4268 | #ifdef DEBUG_CALLBACK_TRACE |
| 4269 | printk(KERN_DEBUG "%s: <-wavelan_probe()\n", dev->name); |
| 4270 | #endif |
| 4271 | } else { /* Scan all possible addresses of the WaveLAN hardware. */ |
| 4272 | for (i = 0; i < NELS(iobase); i++) { |
| 4273 | dev->irq = def_irq; |
| 4274 | if (wavelan_config(dev, iobase[i]) == 0) { |
| 4275 | #ifdef DEBUG_CALLBACK_TRACE |
| 4276 | printk(KERN_DEBUG |
| 4277 | "%s: <-wavelan_probe()\n", |
| 4278 | dev->name); |
| 4279 | #endif |
| 4280 | break; |
| 4281 | } |
| 4282 | } |
| 4283 | if (i == NELS(iobase)) |
| 4284 | r = -ENODEV; |
| 4285 | } |
| 4286 | if (r) |
| 4287 | goto out; |
| 4288 | r = register_netdev(dev); |
| 4289 | if (r) |
| 4290 | goto out1; |
| 4291 | return dev; |
| 4292 | out1: |
| 4293 | release_region(dev->base_addr, sizeof(ha_t)); |
| 4294 | wavelan_list = wavelan_list->next; |
| 4295 | out: |
| 4296 | free_netdev(dev); |
| 4297 | return ERR_PTR(r); |
| 4298 | } |
| 4299 | |
| 4300 | /****************************** MODULE ******************************/ |
| 4301 | /* |
| 4302 | * Module entry point: insertion and removal |
| 4303 | */ |
| 4304 | |
| 4305 | #ifdef MODULE |
| 4306 | /*------------------------------------------------------------------*/ |
| 4307 | /* |
| 4308 | * Insertion of the module |
| 4309 | * I'm now quite proud of the multi-device support. |
| 4310 | */ |
Randy Dunlap | 53072d6 | 2006-05-25 11:09:21 -0700 | [diff] [blame] | 4311 | int __init init_module(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4312 | { |
| 4313 | int ret = -EIO; /* Return error if no cards found */ |
| 4314 | int i; |
| 4315 | |
| 4316 | #ifdef DEBUG_MODULE_TRACE |
| 4317 | printk(KERN_DEBUG "-> init_module()\n"); |
| 4318 | #endif |
| 4319 | |
| 4320 | /* If probing is asked */ |
| 4321 | if (io[0] == 0) { |
| 4322 | #ifdef DEBUG_CONFIG_ERROR |
| 4323 | printk(KERN_WARNING |
| 4324 | "WaveLAN init_module(): doing device probing (bad !)\n"); |
| 4325 | printk(KERN_WARNING |
| 4326 | "Specify base addresses while loading module to correct the problem\n"); |
| 4327 | #endif |
| 4328 | |
| 4329 | /* Copy the basic set of address to be probed. */ |
| 4330 | for (i = 0; i < NELS(iobase); i++) |
| 4331 | io[i] = iobase[i]; |
| 4332 | } |
| 4333 | |
| 4334 | |
| 4335 | /* Loop on all possible base addresses. */ |
| 4336 | i = -1; |
| 4337 | while ((io[++i] != 0) && (i < NELS(io))) { |
| 4338 | struct net_device *dev = alloc_etherdev(sizeof(net_local)); |
| 4339 | if (!dev) |
| 4340 | break; |
| 4341 | if (name[i]) |
| 4342 | strcpy(dev->name, name[i]); /* Copy name */ |
| 4343 | dev->base_addr = io[i]; |
| 4344 | dev->irq = irq[i]; |
| 4345 | |
| 4346 | /* Check if there is something at this base address. */ |
| 4347 | if (wavelan_config(dev, io[i]) == 0) { |
| 4348 | if (register_netdev(dev) != 0) { |
| 4349 | release_region(dev->base_addr, sizeof(ha_t)); |
| 4350 | wavelan_list = wavelan_list->next; |
| 4351 | } else { |
| 4352 | ret = 0; |
| 4353 | continue; |
| 4354 | } |
| 4355 | } |
| 4356 | free_netdev(dev); |
| 4357 | } |
| 4358 | |
| 4359 | #ifdef DEBUG_CONFIG_ERROR |
| 4360 | if (!wavelan_list) |
| 4361 | printk(KERN_WARNING |
| 4362 | "WaveLAN init_module(): no device found\n"); |
| 4363 | #endif |
| 4364 | |
| 4365 | #ifdef DEBUG_MODULE_TRACE |
| 4366 | printk(KERN_DEBUG "<- init_module()\n"); |
| 4367 | #endif |
| 4368 | return ret; |
| 4369 | } |
| 4370 | |
| 4371 | /*------------------------------------------------------------------*/ |
| 4372 | /* |
| 4373 | * Removal of the module |
| 4374 | */ |
| 4375 | void cleanup_module(void) |
| 4376 | { |
| 4377 | #ifdef DEBUG_MODULE_TRACE |
| 4378 | printk(KERN_DEBUG "-> cleanup_module()\n"); |
| 4379 | #endif |
| 4380 | |
| 4381 | /* Loop on all devices and release them. */ |
| 4382 | while (wavelan_list) { |
| 4383 | struct net_device *dev = wavelan_list->dev; |
| 4384 | |
| 4385 | #ifdef DEBUG_CONFIG_INFO |
| 4386 | printk(KERN_DEBUG |
| 4387 | "%s: cleanup_module(): removing device at 0x%x\n", |
| 4388 | dev->name, (unsigned int) dev); |
| 4389 | #endif |
| 4390 | unregister_netdev(dev); |
| 4391 | |
| 4392 | release_region(dev->base_addr, sizeof(ha_t)); |
| 4393 | wavelan_list = wavelan_list->next; |
| 4394 | |
| 4395 | free_netdev(dev); |
| 4396 | } |
| 4397 | |
| 4398 | #ifdef DEBUG_MODULE_TRACE |
| 4399 | printk(KERN_DEBUG "<- cleanup_module()\n"); |
| 4400 | #endif |
| 4401 | } |
| 4402 | #endif /* MODULE */ |
| 4403 | MODULE_LICENSE("GPL"); |
| 4404 | |
| 4405 | /* |
| 4406 | * This software may only be used and distributed |
| 4407 | * according to the terms of the GNU General Public License. |
| 4408 | * |
| 4409 | * This software was developed as a component of the |
| 4410 | * Linux operating system. |
| 4411 | * It is based on other device drivers and information |
| 4412 | * either written or supplied by: |
| 4413 | * Ajay Bakre (bakre@paul.rutgers.edu), |
| 4414 | * Donald Becker (becker@scyld.com), |
| 4415 | * Loeke Brederveld (Loeke.Brederveld@Utrecht.NCR.com), |
| 4416 | * Anders Klemets (klemets@it.kth.se), |
| 4417 | * Vladimir V. Kolpakov (w@stier.koenig.ru), |
| 4418 | * Marc Meertens (Marc.Meertens@Utrecht.NCR.com), |
| 4419 | * Pauline Middelink (middelin@polyware.iaf.nl), |
| 4420 | * Robert Morris (rtm@das.harvard.edu), |
| 4421 | * Jean Tourrilhes (jt@hplb.hpl.hp.com), |
| 4422 | * Girish Welling (welling@paul.rutgers.edu), |
| 4423 | * |
| 4424 | * Thanks go also to: |
| 4425 | * James Ashton (jaa101@syseng.anu.edu.au), |
| 4426 | * Alan Cox (alan@redhat.com), |
| 4427 | * Allan Creighton (allanc@cs.usyd.edu.au), |
| 4428 | * Matthew Geier (matthew@cs.usyd.edu.au), |
| 4429 | * Remo di Giovanni (remo@cs.usyd.edu.au), |
| 4430 | * Eckhard Grah (grah@wrcs1.urz.uni-wuppertal.de), |
| 4431 | * Vipul Gupta (vgupta@cs.binghamton.edu), |
| 4432 | * Mark Hagan (mhagan@wtcpost.daytonoh.NCR.COM), |
| 4433 | * Tim Nicholson (tim@cs.usyd.edu.au), |
| 4434 | * Ian Parkin (ian@cs.usyd.edu.au), |
| 4435 | * John Rosenberg (johnr@cs.usyd.edu.au), |
| 4436 | * George Rossi (george@phm.gov.au), |
| 4437 | * Arthur Scott (arthur@cs.usyd.edu.au), |
| 4438 | * Peter Storey, |
| 4439 | * for their assistance and advice. |
| 4440 | * |
| 4441 | * Please send bug reports, updates, comments to: |
| 4442 | * |
| 4443 | * Bruce Janson Email: bruce@cs.usyd.edu.au |
| 4444 | * Basser Department of Computer Science Phone: +61-2-9351-3423 |
| 4445 | * University of Sydney, N.S.W., 2006, AUSTRALIA Fax: +61-2-9351-3838 |
| 4446 | */ |