1/* 2 * WaveLAN ISA driver 3 * 4 * Jean II - HPLB '96 5 * 6 * Reorganisation and extension of the driver. 7 * 8 * This file contains all definitions and declarations necessary for the 9 * WaveLAN ISA driver. This file is a private header, so it should 10 * be included only in wavelan.c! 11 */ 12 13#ifndef WAVELAN_P_H 14#define WAVELAN_P_H 15 16/************************** DOCUMENTATION ***************************/ 17/* 18 * This driver provides a Linux interface to the WaveLAN ISA hardware. 19 * The WaveLAN is a product of Lucent (http://www.wavelan.com/). 20 * This division was formerly part of NCR and then AT&T. 21 * WaveLANs are also distributed by DEC (RoamAbout DS) and Digital Ocean. 22 * 23 * To learn how to use this driver, read the NET3 HOWTO. 24 * If you want to exploit the many other functionalities, read the comments 25 * in the code. 26 * 27 * This driver is the result of the effort of many people (see below). 28 */ 29 30/* ------------------------ SPECIFIC NOTES ------------------------ */ 31/* 32 * Web page 33 * -------- 34 * I try to maintain a web page with the Wireless LAN Howto at : 35 * http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Wavelan.html 36 * 37 * SMP 38 * --- 39 * We now are SMP compliant (I eventually fixed the remaining bugs). 40 * The driver has been tested on a dual P6-150 and survived my usual 41 * set of torture tests. 42 * Anyway, I spent enough time chasing interrupt re-entrancy during 43 * errors or reconfigure, and I designed the locked/unlocked sections 44 * of the driver with great care, and with the recent addition of 45 * the spinlock (thanks to the new API), we should be quite close to 46 * the truth. 47 * The SMP/IRQ locking is quite coarse and conservative (i.e. not fast), 48 * but better safe than sorry (especially at 2 Mb/s ;-). 49 * 50 * I have also looked into disabling only our interrupt on the card 51 * (via HACR) instead of all interrupts in the processor (via cli), 52 * so that other driver are not impacted, and it look like it's 53 * possible, but it's very tricky to do right (full of races). As 54 * the gain would be mostly for SMP systems, it can wait... 55 * 56 * Debugging and options 57 * --------------------- 58 * You will find below a set of '#define" allowing a very fine control 59 * on the driver behaviour and the debug messages printed. 60 * The main options are : 61 * o SET_PSA_CRC, to have your card correctly recognised by 62 * an access point and the Point-to-Point diagnostic tool. 63 * o USE_PSA_CONFIG, to read configuration from the PSA (EEprom) 64 * (otherwise we always start afresh with some defaults) 65 * 66 * wavelan.o is too darned big 67 * --------------------------- 68 * That's true! There is a very simple way to reduce the driver 69 * object by 33%! Comment out the following line: 70 * #include <linux/wireless.h> 71 * Other compile options can also reduce the size of it... 72 * 73 * MAC address and hardware detection: 74 * ----------------------------------- 75 * The detection code for the WaveLAN checks that the first three 76 * octets of the MAC address fit the company code. This type of 77 * detection works well for AT&T cards (because the AT&T code is 78 * hardcoded in wavelan.h), but of course will fail for other 79 * manufacturers. 80 * 81 * If you are sure that your card is derived from the WaveLAN, 82 * here is the way to configure it: 83 * 1) Get your MAC address 84 * a) With your card utilities (wfreqsel, instconf, etc.) 85 * b) With the driver: 86 * o compile the kernel with DEBUG_CONFIG_INFO enabled 87 * o Boot and look the card messages 88 * 2) Set your MAC code (3 octets) in MAC_ADDRESSES[][3] (wavelan.h) 89 * 3) Compile and verify 90 * 4) Send me the MAC code. I will include it in the next version. 91 * 92 */ 93 94/* --------------------- WIRELESS EXTENSIONS --------------------- */ 95/* 96 * This driver is the first to support "wireless extensions". 97 * This set of extensions provides a standard way to control the wireless 98 * characteristics of the hardware. Applications such as mobile IP may 99 * take advantage of it. 100 * 101 * It might be a good idea as well to fetch the wireless tools to 102 * configure the device and play a bit. 103 */ 104 105/* ---------------------------- FILES ---------------------------- */ 106/* 107 * wavelan.c: actual code for the driver: C functions 108 * 109 * wavelan.p.h: private header: local types and variables for driver 110 * 111 * wavelan.h: description of the hardware interface and structs 112 * 113 * i82586.h: description of the Ethernet controller 114 */ 115 116/* --------------------------- HISTORY --------------------------- */ 117/* 118 * This is based on information in the drivers' headers. It may not be 119 * accurate, and I guarantee only my best effort. 120 * 121 * The history of the WaveLAN drivers is as complicated as the history of 122 * the WaveLAN itself (NCR -> AT&T -> Lucent). 123 * 124 * It all started with Anders Klemets <klemets@paul.rutgers.edu> 125 * writing a WaveLAN ISA driver for the Mach microkernel. Girish 126 * Welling <welling@paul.rutgers.edu> had also worked on it. 127 * Keith Moore modified this for the PCMCIA hardware. 128 * 129 * Robert Morris <rtm@das.harvard.edu> ported these two drivers to BSDI 130 * and added specific PCMCIA support (there is currently no equivalent 131 * of the PCMCIA package under BSD). 132 * 133 * Jim Binkley <jrb@cs.pdx.edu> ported both BSDI drivers to FreeBSD. 134 * 135 * Bruce Janson <bruce@cs.usyd.edu.au> ported the BSDI ISA driver to Linux. 136 * 137 * Anthony D. Joseph <adj@lcs.mit.edu> started to modify Bruce's driver 138 * (with help of the BSDI PCMCIA driver) for PCMCIA. 139 * Yunzhou Li <yunzhou@strat.iol.unh.edu> finished this work. 140 * Joe Finney <joe@comp.lancs.ac.uk> patched the driver to start 141 * 2.00 cards correctly (2.4 GHz with frequency selection). 142 * David Hinds <dahinds@users.sourceforge.net> integrated the whole in his 143 * PCMCIA package (and bug corrections). 144 * 145 * I (Jean Tourrilhes - jt@hplb.hpl.hp.com) then started to make some 146 * patches to the PCMCIA driver. Later, I added code in the ISA driver 147 * for Wireless Extensions and full support of frequency selection 148 * cards. Then, I did the same to the PCMCIA driver, and did some 149 * reorganisation. Finally, I came back to the ISA driver to 150 * upgrade it at the same level as the PCMCIA one and reorganise 151 * the code. 152 * Loeke Brederveld <lbrederv@wavelan.com> from Lucent has given me 153 * much needed information on the WaveLAN hardware. 154 */ 155 156/* The original copyrights and literature mention others' names and 157 * credits. I don't know what their part in this development was. 158 */ 159 160/* By the way, for the copyright and legal stuff: 161 * almost everybody wrote code under the GNU or BSD license (or similar), 162 * and want their original copyright to remain somewhere in the 163 * code (for myself, I go with the GPL). 164 * Nobody wants to take responsibility for anything, except the fame. 165 */ 166 167/* --------------------------- CREDITS --------------------------- */ 168/* 169 * This software was developed as a component of the 170 * Linux operating system. 171 * It is based on other device drivers and information 172 * either written or supplied by: 173 * Ajay Bakre <bakre@paul.rutgers.edu>, 174 * Donald Becker <becker@cesdis.gsfc.nasa.gov>, 175 * Loeke Brederveld <Loeke.Brederveld@Utrecht.NCR.com>, 176 * Brent Elphick <belphick@uwaterloo.ca>, 177 * Anders Klemets <klemets@it.kth.se>, 178 * Vladimir V. Kolpakov <w@stier.koenig.ru>, 179 * Marc Meertens <Marc.Meertens@Utrecht.NCR.com>, 180 * Pauline Middelink <middelin@polyware.iaf.nl>, 181 * Robert Morris <rtm@das.harvard.edu>, 182 * Jean Tourrilhes <jt@hpl.hp.com>, 183 * Girish Welling <welling@paul.rutgers.edu>, 184 * Clark Woodworth <clark@hiway1.exit109.com> 185 * Yongguang Zhang <ygz@isl.hrl.hac.com> 186 * 187 * Thanks go also to: 188 * James Ashton <jaa101@syseng.anu.edu.au>, 189 * Alan Cox <alan@redhat.com>, 190 * Allan Creighton <allanc@cs.usyd.edu.au>, 191 * Matthew Geier <matthew@cs.usyd.edu.au>, 192 * Remo di Giovanni <remo@cs.usyd.edu.au>, 193 * Eckhard Grah <grah@wrcs1.urz.uni-wuppertal.de>, 194 * Vipul Gupta <vgupta@cs.binghamton.edu>, 195 * Mark Hagan <mhagan@wtcpost.daytonoh.NCR.COM>, 196 * Tim Nicholson <tim@cs.usyd.edu.au>, 197 * Ian Parkin <ian@cs.usyd.edu.au>, 198 * John Rosenberg <johnr@cs.usyd.edu.au>, 199 * George Rossi <george@phm.gov.au>, 200 * Arthur Scott <arthur@cs.usyd.edu.au>, 201 * Stanislav Sinyagin <stas@isf.ru> 202 * and Peter Storey for their assistance and advice. 203 * 204 * Additional Credits: 205 * 206 * My development has been done initially under Debian 1.1 (Linux 2.0.x) 207 * and now under Debian 2.2, initially with an HP Vectra XP/60, and now 208 * an HP Vectra XP/90. 209 * 210 */ 211 212/* ------------------------- IMPROVEMENTS ------------------------- */ 213/* 214 * I proudly present: 215 * 216 * Changes made in first pre-release: 217 * ---------------------------------- 218 * - reorganisation of the code, function name change 219 * - creation of private header (wavelan.p.h) 220 * - reorganised debug messages 221 * - more comments, history, etc. 222 * - mmc_init: configure the PSA if not done 223 * - mmc_init: correct default value of level threshold for PCMCIA 224 * - mmc_init: 2.00 detection better code for 2.00 initialization 225 * - better info at startup 226 * - IRQ setting (note: this setting is permanent) 227 * - watchdog: change strategy (and solve module removal problems) 228 * - add wireless extensions (ioctl and get_wireless_stats) 229 * get/set nwid/frequency on fly, info for /proc/net/wireless 230 * - more wireless extensions: SETSPY and GETSPY 231 * - make wireless extensions optional 232 * - private ioctl to set/get quality and level threshold, histogram 233 * - remove /proc/net/wavelan 234 * - suppress useless stuff from lp (net_local) 235 * - kernel 2.1 support (copy_to/from_user instead of memcpy_to/fromfs) 236 * - add message level (debug stuff in /var/adm/debug and errors not 237 * displayed at console and still in /var/adm/messages) 238 * - multi device support 239 * - start fixing the probe (init code) 240 * - more inlines 241 * - man page 242 * - many other minor details and cleanups 243 * 244 * Changes made in second pre-release: 245 * ----------------------------------- 246 * - clean up init code (probe and module init) 247 * - better multiple device support (module) 248 * - name assignment (module) 249 * 250 * Changes made in third pre-release: 251 * ---------------------------------- 252 * - be more conservative on timers 253 * - preliminary support for multicast (I still lack some details) 254 * 255 * Changes made in fourth pre-release: 256 * ----------------------------------- 257 * - multicast (revisited and finished) 258 * - avoid reset in set_multicast_list (a really big hack) 259 * if somebody could apply this code for other i82586 based drivers 260 * - share onboard memory 75% RU and 25% CU (instead of 50/50) 261 * 262 * Changes made for release in 2.1.15: 263 * ----------------------------------- 264 * - change the detection code for multi manufacturer code support 265 * 266 * Changes made for release in 2.1.17: 267 * ----------------------------------- 268 * - update to wireless extensions changes 269 * - silly bug in card initial configuration (psa_conf_status) 270 * 271 * Changes made for release in 2.1.27 & 2.0.30: 272 * -------------------------------------------- 273 * - small bug in debug code (probably not the last one...) 274 * - remove extern keyword for wavelan_probe() 275 * - level threshold is now a standard wireless extension (version 4 !) 276 * - modules parameters types (new module interface) 277 * 278 * Changes made for release in 2.1.36: 279 * ----------------------------------- 280 * - byte count stats (courtesy of David Hinds) 281 * - remove dev_tint stuff (courtesy of David Hinds) 282 * - encryption setting from Brent Elphick (thanks a lot!) 283 * - 'ioaddr' to 'u_long' for the Alpha (thanks to Stanislav Sinyagin) 284 * 285 * Other changes (not by me) : 286 * ------------------------- 287 * - Spelling and gramar "rectification". 288 * 289 * Changes made for release in 2.0.37 & 2.2.2 : 290 * ------------------------------------------ 291 * - Correct status in /proc/net/wireless 292 * - Set PSA CRC to make PtP diagnostic tool happy (Bob Gray) 293 * - Module init code don't fail if we found at least one card in 294 * the address list (Karlis Peisenieks) 295 * - Missing parenthesis (Christopher Peterson) 296 * - Correct i82586 configuration parameters 297 * - Encryption initialisation bug (Robert McCormack) 298 * - New mac addresses detected in the probe 299 * - Increase watchdog for busy environments 300 * 301 * Changes made for release in 2.0.38 & 2.2.7 : 302 * ------------------------------------------ 303 * - Correct the reception logic to better report errors and avoid 304 * sending bogus packet up the stack 305 * - Delay RU config to avoid corrupting first received packet 306 * - Change config completion code (to actually check something) 307 * - Avoid reading out of bound in skbuf to transmit 308 * - Rectify a lot of (useless) debugging code 309 * - Change the way to `#ifdef SET_PSA_CRC' 310 * 311 * Changes made for release in 2.2.11 & 2.3.13 : 312 * ------------------------------------------- 313 * - Change e-mail and web page addresses 314 * - Watchdog timer is now correctly expressed in HZ, not in jiffies 315 * - Add channel number to the list of frequencies in range 316 * - Add the (short) list of bit-rates in range 317 * - Developp a new sensitivity... (sens.value & sens.fixed) 318 * 319 * Changes made for release in 2.2.14 & 2.3.23 : 320 * ------------------------------------------- 321 * - Fix check for root permission (break instead of exit) 322 * - New nwid & encoding setting (Wireless Extension 9) 323 * 324 * Changes made for release in 2.3.49 : 325 * ---------------------------------- 326 * - Indentation reformating (Alan) 327 * - Update to new network API (softnet - 2.3.43) : 328 * o replace dev->tbusy (Alan) 329 * o replace dev->tstart (Alan) 330 * o remove dev->interrupt (Alan) 331 * o add SMP locking via spinlock in splxx (me) 332 * o add spinlock in interrupt handler (me) 333 * o use kernel watchdog instead of ours (me) 334 * o increase watchdog timeout (kernel is more sensitive) (me) 335 * o verify that all the changes make sense and work (me) 336 * - Fixup a potential gotcha when reconfiguring and thighten a bit 337 * the interactions with Tx queue. 338 * 339 * Changes made for release in 2.4.0 : 340 * --------------------------------- 341 * - Fix spinlock stupid bugs that I left in. The driver is now SMP 342 * compliant and doesn't lockup at startup. 343 * 344 * Changes made for release in 2.5.2 : 345 * --------------------------------- 346 * - Use new driver API for Wireless Extensions : 347 * o got rid of wavelan_ioctl() 348 * o use a bunch of iw_handler instead 349 * 350 * Changes made for release in 2.5.35 : 351 * ---------------------------------- 352 * - Set dev->trans_start to avoid filling the logs 353 * - Handle better spurious/bogus interrupt 354 * - Avoid deadlocks in mmc_out()/mmc_in() 355 * 356 * Wishes & dreams: 357 * ---------------- 358 * - roaming (see Pcmcia driver) 359 */ 360 361/***************************** INCLUDES *****************************/ 362 363#include <linux/module.h> 364 365#include <linux/kernel.h> 366#include <linux/sched.h> 367#include <linux/types.h> 368#include <linux/fcntl.h> 369#include <linux/interrupt.h> 370#include <linux/stat.h> 371#include <linux/ptrace.h> 372#include <linux/ioport.h> 373#include <linux/in.h> 374#include <linux/string.h> 375#include <linux/delay.h> 376#include <linux/bitops.h> 377#include <asm/system.h> 378#include <asm/io.h> 379#include <asm/dma.h> 380#include <asm/uaccess.h> 381#include <linux/errno.h> 382#include <linux/netdevice.h> 383#include <linux/etherdevice.h> 384#include <linux/skbuff.h> 385#include <linux/slab.h> 386#include <linux/timer.h> 387#include <linux/init.h> 388 389#include <linux/wireless.h> /* Wireless extensions */ 390#include <net/iw_handler.h> /* Wireless handlers */ 391 392/* WaveLAN declarations */ 393#include "i82586.h" 394#include "wavelan.h" 395 396/************************** DRIVER OPTIONS **************************/ 397/* 398 * `#define' or `#undef' the following constant to change the behaviour 399 * of the driver... 400 */ 401#undef SET_PSA_CRC /* Calculate and set the CRC on PSA (slower) */ 402#define USE_PSA_CONFIG /* Use info from the PSA. */ 403#undef STRUCT_CHECK /* Verify padding of structures. */ 404#undef EEPROM_IS_PROTECTED /* doesn't seem to be necessary */ 405#define MULTICAST_AVOID /* Avoid extra multicast (I'm sceptical). */ 406#undef SET_MAC_ADDRESS /* Experimental */ 407 408/* Warning: this stuff will slow down the driver. */ 409#define WIRELESS_SPY /* Enable spying addresses. */ 410#undef HISTOGRAM /* Enable histogram of signal level. */ 411 412/****************************** DEBUG ******************************/ 413 414#undef DEBUG_MODULE_TRACE /* module insertion/removal */ 415#undef DEBUG_CALLBACK_TRACE /* calls made by Linux */ 416#undef DEBUG_INTERRUPT_TRACE /* calls to handler */ 417#undef DEBUG_INTERRUPT_INFO /* type of interrupt and so on */ 418#define DEBUG_INTERRUPT_ERROR /* problems */ 419#undef DEBUG_CONFIG_TRACE /* Trace the config functions. */ 420#undef DEBUG_CONFIG_INFO /* what's going on */ 421#define DEBUG_CONFIG_ERROR /* errors on configuration */ 422#undef DEBUG_TX_TRACE /* transmission calls */ 423#undef DEBUG_TX_INFO /* header of the transmitted packet */ 424#undef DEBUG_TX_FAIL /* Normal failure conditions */ 425#define DEBUG_TX_ERROR /* Unexpected conditions */ 426#undef DEBUG_RX_TRACE /* transmission calls */ 427#undef DEBUG_RX_INFO /* header of the received packet */ 428#undef DEBUG_RX_FAIL /* Normal failure conditions */ 429#define DEBUG_RX_ERROR /* Unexpected conditions */ 430 431#undef DEBUG_PACKET_DUMP /* Dump packet on the screen if defined to 32. */ 432#undef DEBUG_IOCTL_TRACE /* misc. call by Linux */ 433#undef DEBUG_IOCTL_INFO /* various debugging info */ 434#define DEBUG_IOCTL_ERROR /* what's going wrong */ 435#define DEBUG_BASIC_SHOW /* Show basic startup info. */ 436#undef DEBUG_VERSION_SHOW /* Print version info. */ 437#undef DEBUG_PSA_SHOW /* Dump PSA to screen. */ 438#undef DEBUG_MMC_SHOW /* Dump mmc to screen. */ 439#undef DEBUG_SHOW_UNUSED /* Show unused fields too. */ 440#undef DEBUG_I82586_SHOW /* Show i82586 status. */ 441#undef DEBUG_DEVICE_SHOW /* Show device parameters. */ 442 443/************************ CONSTANTS & MACROS ************************/ 444 445#ifdef DEBUG_VERSION_SHOW 446static const char *version = "wavelan.c : v24 (SMP + wireless extensions) 11/12/01\n"; 447#endif 448 449/* Watchdog temporisation */ 450#define WATCHDOG_JIFFIES (512*HZ/100) 451 452/* ------------------------ PRIVATE IOCTL ------------------------ */ 453 454#define SIOCSIPQTHR SIOCIWFIRSTPRIV /* Set quality threshold */ 455#define SIOCGIPQTHR SIOCIWFIRSTPRIV + 1 /* Get quality threshold */ 456 457#define SIOCSIPHISTO SIOCIWFIRSTPRIV + 2 /* Set histogram ranges */ 458#define SIOCGIPHISTO SIOCIWFIRSTPRIV + 3 /* Get histogram values */ 459 460/****************************** TYPES ******************************/ 461 462/* Shortcuts */ 463typedef struct net_device_stats en_stats; 464typedef struct iw_statistics iw_stats; 465typedef struct iw_quality iw_qual; 466typedef struct iw_freq iw_freq; 467typedef struct net_local net_local; 468typedef struct timer_list timer_list; 469 470/* Basic types */ 471typedef u_char mac_addr[WAVELAN_ADDR_SIZE]; /* Hardware address */ 472 473/* 474 * Static specific data for the interface. 475 * 476 * For each network interface, Linux keeps data in two structures: "device" 477 * keeps the generic data (same format for everybody) and "net_local" keeps 478 * additional specific data. 479 * Note that some of this specific data is in fact generic (en_stats, for 480 * example). 481 */ 482struct net_local 483{ 484 net_local * next; /* linked list of the devices */ 485 struct net_device * dev; /* reverse link */ 486 spinlock_t spinlock; /* Serialize access to the hardware (SMP) */ 487 en_stats stats; /* Ethernet interface statistics */ 488 int nresets; /* number of hardware resets */ 489 u_char reconfig_82586; /* We need to reconfigure the controller. */ 490 u_char promiscuous; /* promiscuous mode */ 491 int mc_count; /* number of multicast addresses */ 492 u_short hacr; /* current host interface state */ 493 494 int tx_n_in_use; 495 u_short rx_head; 496 u_short rx_last; 497 u_short tx_first_free; 498 u_short tx_first_in_use; 499 500 iw_stats wstats; /* Wireless-specific statistics */ 501 502 struct iw_spy_data spy_data; 503 struct iw_public_data wireless_data; 504 505#ifdef HISTOGRAM 506 int his_number; /* number of intervals */ 507 u_char his_range[16]; /* boundaries of interval ]n-1; n] */ 508 u_long his_sum[16]; /* sum in interval */ 509#endif /* HISTOGRAM */ 510}; 511 512/**************************** PROTOTYPES ****************************/ 513 514/* ----------------------- MISC. SUBROUTINES ------------------------ */ 515static u_char 516 wv_irq_to_psa(int); 517static int 518 wv_psa_to_irq(u_char); 519/* ------------------- HOST ADAPTER SUBROUTINES ------------------- */ 520static inline u_short /* data */ 521 hasr_read(u_long); /* Read the host interface: base address */ 522static inline void 523 hacr_write(u_long, /* Write to host interface: base address */ 524 u_short), /* data */ 525 hacr_write_slow(u_long, 526 u_short), 527 set_chan_attn(u_long, /* ioaddr */ 528 u_short), /* hacr */ 529 wv_hacr_reset(u_long), /* ioaddr */ 530 wv_16_off(u_long, /* ioaddr */ 531 u_short), /* hacr */ 532 wv_16_on(u_long, /* ioaddr */ 533 u_short), /* hacr */ 534 wv_ints_off(struct net_device *), 535 wv_ints_on(struct net_device *); 536/* ----------------- MODEM MANAGEMENT SUBROUTINES ----------------- */ 537static void 538 psa_read(u_long, /* Read the Parameter Storage Area. */ 539 u_short, /* hacr */ 540 int, /* offset in PSA */ 541 u_char *, /* buffer to fill */ 542 int), /* size to read */ 543 psa_write(u_long, /* Write to the PSA. */ 544 u_short, /* hacr */ 545 int, /* offset in PSA */ 546 u_char *, /* buffer in memory */ 547 int); /* length of buffer */ 548static inline void 549 mmc_out(u_long, /* Write 1 byte to the Modem Manag Control. */ 550 u_short, 551 u_char), 552 mmc_write(u_long, /* Write n bytes to the MMC. */ 553 u_char, 554 u_char *, 555 int); 556static inline u_char /* Read 1 byte from the MMC. */ 557 mmc_in(u_long, 558 u_short); 559static inline void 560 mmc_read(u_long, /* Read n bytes from the MMC. */ 561 u_char, 562 u_char *, 563 int), 564 fee_wait(u_long, /* Wait for frequency EEPROM: base address */ 565 int, /* base delay to wait for */ 566 int); /* time to wait */ 567static void 568 fee_read(u_long, /* Read the frequency EEPROM: base address */ 569 u_short, /* destination offset */ 570 u_short *, /* data buffer */ 571 int); /* number of registers */ 572/* ---------------------- I82586 SUBROUTINES ----------------------- */ 573static /*inline*/ void 574 obram_read(u_long, /* ioaddr */ 575 u_short, /* o */ 576 u_char *, /* b */ 577 int); /* n */ 578static inline void 579 obram_write(u_long, /* ioaddr */ 580 u_short, /* o */ 581 u_char *, /* b */ 582 int); /* n */ 583static void 584 wv_ack(struct net_device *); 585static inline int 586 wv_synchronous_cmd(struct net_device *, 587 const char *), 588 wv_config_complete(struct net_device *, 589 u_long, 590 net_local *); 591static int 592 wv_complete(struct net_device *, 593 u_long, 594 net_local *); 595static inline void 596 wv_82586_reconfig(struct net_device *); 597/* ------------------- DEBUG & INFO SUBROUTINES ------------------- */ 598#ifdef DEBUG_I82586_SHOW 599static void 600 wv_scb_show(unsigned short); 601#endif 602static inline void 603 wv_init_info(struct net_device *); /* display startup info */ 604/* ------------------- IOCTL, STATS & RECONFIG ------------------- */ 605static en_stats * 606 wavelan_get_stats(struct net_device *); /* Give stats /proc/net/dev */ 607static iw_stats * 608 wavelan_get_wireless_stats(struct net_device *); 609static void 610 wavelan_set_multicast_list(struct net_device *); 611/* ----------------------- PACKET RECEPTION ----------------------- */ 612static inline void 613 wv_packet_read(struct net_device *, /* Read a packet from a frame. */ 614 u_short, 615 int), 616 wv_receive(struct net_device *); /* Read all packets waiting. */ 617/* --------------------- PACKET TRANSMISSION --------------------- */ 618static inline int 619 wv_packet_write(struct net_device *, /* Write a packet to the Tx buffer. */ 620 void *, 621 short); 622static int 623 wavelan_packet_xmit(struct sk_buff *, /* Send a packet. */ 624 struct net_device *); 625/* -------------------- HARDWARE CONFIGURATION -------------------- */ 626static inline int 627 wv_mmc_init(struct net_device *), /* Initialize the modem. */ 628 wv_ru_start(struct net_device *), /* Start the i82586 receiver unit. */ 629 wv_cu_start(struct net_device *), /* Start the i82586 command unit. */ 630 wv_82586_start(struct net_device *); /* Start the i82586. */ 631static void 632 wv_82586_config(struct net_device *); /* Configure the i82586. */ 633static inline void 634 wv_82586_stop(struct net_device *); 635static int 636 wv_hw_reset(struct net_device *), /* Reset the WaveLAN hardware. */ 637 wv_check_ioaddr(u_long, /* ioaddr */ 638 u_char *); /* mac address (read) */ 639/* ---------------------- INTERRUPT HANDLING ---------------------- */ 640static irqreturn_t 641 wavelan_interrupt(int, /* interrupt handler */ 642 void *); 643static void 644 wavelan_watchdog(struct net_device *); /* transmission watchdog */ 645/* ------------------- CONFIGURATION CALLBACKS ------------------- */ 646static int 647 wavelan_open(struct net_device *), /* Open the device. */ 648 wavelan_close(struct net_device *), /* Close the device. */ 649 wavelan_config(struct net_device *, unsigned short);/* Configure one device. */ 650extern struct net_device *wavelan_probe(int unit); /* See Space.c. */ 651 652/**************************** VARIABLES ****************************/ 653 654/* 655 * This is the root of the linked list of WaveLAN drivers 656 * It is use to verify that we don't reuse the same base address 657 * for two different drivers and to clean up when removing the module. 658 */ 659static net_local * wavelan_list = (net_local *) NULL; 660 661/* 662 * This table is used to translate the PSA value to IRQ number 663 * and vice versa. 664 */ 665static u_char irqvals[] = 666{ 667 0, 0, 0, 0x01, 668 0x02, 0x04, 0, 0x08, 669 0, 0, 0x10, 0x20, 670 0x40, 0, 0, 0x80, 671}; 672 673/* 674 * Table of the available I/O addresses (base addresses) for WaveLAN 675 */ 676static unsigned short iobase[] = 677{ 678 0x390, 0x3E0 679}; 680 681#ifdef MODULE 682/* Parameters set by insmod */ 683static int io[4]; 684static int irq[4]; 685static char *name[4]; 686module_param_array(io, int, NULL, 0); 687module_param_array(irq, int, NULL, 0); 688module_param_array(name, charp, NULL, 0); 689 690MODULE_PARM_DESC(io, "WaveLAN I/O base address(es),required"); 691MODULE_PARM_DESC(irq, "WaveLAN IRQ number(s)"); 692MODULE_PARM_DESC(name, "WaveLAN interface neme(s)"); 693#endif /* MODULE */ 694 695#endif /* WAVELAN_P_H */ 696