diff options
Diffstat (limited to 'drivers/net/wireless/wavelan.p.h')
| -rw-r--r-- | drivers/net/wireless/wavelan.p.h | 716 |
1 files changed, 716 insertions, 0 deletions
diff --git a/drivers/net/wireless/wavelan.p.h b/drivers/net/wireless/wavelan.p.h new file mode 100644 index 000000000000..509ff22a6caa --- /dev/null +++ b/drivers/net/wireless/wavelan.p.h @@ -0,0 +1,716 @@ +/* + * WaveLAN ISA driver + * + * Jean II - HPLB '96 + * + * Reorganisation and extension of the driver. + * + * This file contains all definitions and declarations necessary for the + * WaveLAN ISA driver. This file is a private header, so it should + * be included only in wavelan.c! + */ + +#ifndef WAVELAN_P_H +#define WAVELAN_P_H + +/************************** DOCUMENTATION ***************************/ +/* + * This driver provides a Linux interface to the WaveLAN ISA hardware. + * The WaveLAN is a product of Lucent (http://www.wavelan.com/). + * This division was formerly part of NCR and then AT&T. + * WaveLANs are also distributed by DEC (RoamAbout DS) and Digital Ocean. + * + * To learn how to use this driver, read the NET3 HOWTO. + * If you want to exploit the many other functionalities, read the comments + * in the code. + * + * This driver is the result of the effort of many people (see below). + */ + +/* ------------------------ SPECIFIC NOTES ------------------------ */ +/* + * Web page + * -------- + * I try to maintain a web page with the Wireless LAN Howto at : + * http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Wavelan.html + * + * SMP + * --- + * We now are SMP compliant (I eventually fixed the remaining bugs). + * The driver has been tested on a dual P6-150 and survived my usual + * set of torture tests. + * Anyway, I spent enough time chasing interrupt re-entrancy during + * errors or reconfigure, and I designed the locked/unlocked sections + * of the driver with great care, and with the recent addition of + * the spinlock (thanks to the new API), we should be quite close to + * the truth. + * The SMP/IRQ locking is quite coarse and conservative (i.e. not fast), + * but better safe than sorry (especially at 2 Mb/s ;-). + * + * I have also looked into disabling only our interrupt on the card + * (via HACR) instead of all interrupts in the processor (via cli), + * so that other driver are not impacted, and it look like it's + * possible, but it's very tricky to do right (full of races). As + * the gain would be mostly for SMP systems, it can wait... + * + * Debugging and options + * --------------------- + * You will find below a set of '#define" allowing a very fine control + * on the driver behaviour and the debug messages printed. + * The main options are : + * o SET_PSA_CRC, to have your card correctly recognised by + * an access point and the Point-to-Point diagnostic tool. + * o USE_PSA_CONFIG, to read configuration from the PSA (EEprom) + * (otherwise we always start afresh with some defaults) + * + * wavelan.o is too darned big + * --------------------------- + * That's true! There is a very simple way to reduce the driver + * object by 33%! Comment out the following line: + * #include <linux/wireless.h> + * Other compile options can also reduce the size of it... + * + * MAC address and hardware detection: + * ----------------------------------- + * The detection code for the WaveLAN checks that the first three + * octets of the MAC address fit the company code. This type of + * detection works well for AT&T cards (because the AT&T code is + * hardcoded in wavelan.h), but of course will fail for other + * manufacturers. + * + * If you are sure that your card is derived from the WaveLAN, + * here is the way to configure it: + * 1) Get your MAC address + * a) With your card utilities (wfreqsel, instconf, etc.) + * b) With the driver: + * o compile the kernel with DEBUG_CONFIG_INFO enabled + * o Boot and look the card messages + * 2) Set your MAC code (3 octets) in MAC_ADDRESSES[][3] (wavelan.h) + * 3) Compile and verify + * 4) Send me the MAC code. I will include it in the next version. + * + */ + +/* --------------------- WIRELESS EXTENSIONS --------------------- */ +/* + * This driver is the first to support "wireless extensions". + * This set of extensions provides a standard way to control the wireless + * characteristics of the hardware. Applications such as mobile IP may + * take advantage of it. + * + * You will need to enable the CONFIG_NET_RADIO define in the kernel + * configuration to enable the wireless extensions (this is the one + * giving access to the radio network device choice). + * + * It might also be a good idea as well to fetch the wireless tools to + * configure the device and play a bit. + */ + +/* ---------------------------- FILES ---------------------------- */ +/* + * wavelan.c: actual code for the driver: C functions + * + * wavelan.p.h: private header: local types and variables for driver + * + * wavelan.h: description of the hardware interface and structs + * + * i82586.h: description of the Ethernet controller + */ + +/* --------------------------- HISTORY --------------------------- */ +/* + * This is based on information in the drivers' headers. It may not be + * accurate, and I guarantee only my best effort. + * + * The history of the WaveLAN drivers is as complicated as the history of + * the WaveLAN itself (NCR -> AT&T -> Lucent). + * + * It all started with Anders Klemets <klemets@paul.rutgers.edu> + * writing a WaveLAN ISA driver for the Mach microkernel. Girish + * Welling <welling@paul.rutgers.edu> had also worked on it. + * Keith Moore modified this for the PCMCIA hardware. + * + * Robert Morris <rtm@das.harvard.edu> ported these two drivers to BSDI + * and added specific PCMCIA support (there is currently no equivalent + * of the PCMCIA package under BSD). + * + * Jim Binkley <jrb@cs.pdx.edu> ported both BSDI drivers to FreeBSD. + * + * Bruce Janson <bruce@cs.usyd.edu.au> ported the BSDI ISA driver to Linux. + * + * Anthony D. Joseph <adj@lcs.mit.edu> started to modify Bruce's driver + * (with help of the BSDI PCMCIA driver) for PCMCIA. + * Yunzhou Li <yunzhou@strat.iol.unh.edu> finished this work. + * Joe Finney <joe@comp.lancs.ac.uk> patched the driver to start + * 2.00 cards correctly (2.4 GHz with frequency selection). + * David Hinds <dahinds@users.sourceforge.net> integrated the whole in his + * PCMCIA package (and bug corrections). + * + * I (Jean Tourrilhes - jt@hplb.hpl.hp.com) then started to make some + * patches to the PCMCIA driver. Later, I added code in the ISA driver + * for Wireless Extensions and full support of frequency selection + * cards. Then, I did the same to the PCMCIA driver, and did some + * reorganisation. Finally, I came back to the ISA driver to + * upgrade it at the same level as the PCMCIA one and reorganise + * the code. + * Loeke Brederveld <lbrederv@wavelan.com> from Lucent has given me + * much needed information on the WaveLAN hardware. + */ + +/* The original copyrights and literature mention others' names and + * credits. I don't know what their part in this development was. + */ + +/* By the way, for the copyright and legal stuff: + * almost everybody wrote code under the GNU or BSD license (or similar), + * and want their original copyright to remain somewhere in the + * code (for myself, I go with the GPL). + * Nobody wants to take responsibility for anything, except the fame. + */ + +/* --------------------------- CREDITS --------------------------- */ +/* + * This software was developed as a component of the + * Linux operating system. + * It is based on other device drivers and information + * either written or supplied by: + * Ajay Bakre <bakre@paul.rutgers.edu>, + * Donald Becker <becker@cesdis.gsfc.nasa.gov>, + * Loeke Brederveld <Loeke.Brederveld@Utrecht.NCR.com>, + * Brent Elphick <belphick@uwaterloo.ca>, + * Anders Klemets <klemets@it.kth.se>, + * Vladimir V. Kolpakov <w@stier.koenig.ru>, + * Marc Meertens <Marc.Meertens@Utrecht.NCR.com>, + * Pauline Middelink <middelin@polyware.iaf.nl>, + * Robert Morris <rtm@das.harvard.edu>, + * Jean Tourrilhes <jt@hpl.hp.com>, + * Girish Welling <welling@paul.rutgers.edu>, + * Clark Woodworth <clark@hiway1.exit109.com> + * Yongguang Zhang <ygz@isl.hrl.hac.com> + * + * Thanks go also to: + * James Ashton <jaa101@syseng.anu.edu.au>, + * Alan Cox <alan@redhat.com>, + * Allan Creighton <allanc@cs.usyd.edu.au>, + * Matthew Geier <matthew@cs.usyd.edu.au>, + * Remo di Giovanni <remo@cs.usyd.edu.au>, + * Eckhard Grah <grah@wrcs1.urz.uni-wuppertal.de>, + * Vipul Gupta <vgupta@cs.binghamton.edu>, + * Mark Hagan <mhagan@wtcpost.daytonoh.NCR.COM>, + * Tim Nicholson <tim@cs.usyd.edu.au>, + * Ian Parkin <ian@cs.usyd.edu.au>, + * John Rosenberg <johnr@cs.usyd.edu.au>, + * George Rossi <george@phm.gov.au>, + * Arthur Scott <arthur@cs.usyd.edu.au>, + * Stanislav Sinyagin <stas@isf.ru> + * and Peter Storey for their assistance and advice. + * + * Additional Credits: + * + * My development has been done initially under Debian 1.1 (Linux 2.0.x) + * and now under Debian 2.2, initially with an HP Vectra XP/60, and now + * an HP Vectra XP/90. + * + */ + +/* ------------------------- IMPROVEMENTS ------------------------- */ +/* + * I proudly present: + * + * Changes made in first pre-release: + * ---------------------------------- + * - reorganisation of the code, function name change + * - creation of private header (wavelan.p.h) + * - reorganised debug messages + * - more comments, history, etc. + * - mmc_init: configure the PSA if not done + * - mmc_init: correct default value of level threshold for PCMCIA + * - mmc_init: 2.00 detection better code for 2.00 initialization + * - better info at startup + * - IRQ setting (note: this setting is permanent) + * - watchdog: change strategy (and solve module removal problems) + * - add wireless extensions (ioctl and get_wireless_stats) + * get/set nwid/frequency on fly, info for /proc/net/wireless + * - more wireless extensions: SETSPY and GETSPY + * - make wireless extensions optional + * - private ioctl to set/get quality and level threshold, histogram + * - remove /proc/net/wavelan + * - suppress useless stuff from lp (net_local) + * - kernel 2.1 support (copy_to/from_user instead of memcpy_to/fromfs) + * - add message level (debug stuff in /var/adm/debug and errors not + * displayed at console and still in /var/adm/messages) + * - multi device support + * - start fixing the probe (init code) + * - more inlines + * - man page + * - many other minor details and cleanups + * + * Changes made in second pre-release: + * ----------------------------------- + * - clean up init code (probe and module init) + * - better multiple device support (module) + * - name assignment (module) + * + * Changes made in third pre-release: + * ---------------------------------- + * - be more conservative on timers + * - preliminary support for multicast (I still lack some details) + * + * Changes made in fourth pre-release: + * ----------------------------------- + * - multicast (revisited and finished) + * - avoid reset in set_multicast_list (a really big hack) + * if somebody could apply this code for other i82586 based drivers + * - share onboard memory 75% RU and 25% CU (instead of 50/50) + * + * Changes made for release in 2.1.15: + * ----------------------------------- + * - change the detection code for multi manufacturer code support + * + * Changes made for release in 2.1.17: + * ----------------------------------- + * - update to wireless extensions changes + * - silly bug in card initial configuration (psa_conf_status) + * + * Changes made for release in 2.1.27 & 2.0.30: + * -------------------------------------------- + * - small bug in debug code (probably not the last one...) + * - remove extern keyword for wavelan_probe() + * - level threshold is now a standard wireless extension (version 4 !) + * - modules parameters types (new module interface) + * + * Changes made for release in 2.1.36: + * ----------------------------------- + * - byte count stats (courtesy of David Hinds) + * - remove dev_tint stuff (courtesy of David Hinds) + * - encryption setting from Brent Elphick (thanks a lot!) + * - 'ioaddr' to 'u_long' for the Alpha (thanks to Stanislav Sinyagin) + * + * Other changes (not by me) : + * ------------------------- + * - Spelling and gramar "rectification". + * + * Changes made for release in 2.0.37 & 2.2.2 : + * ------------------------------------------ + * - Correct status in /proc/net/wireless + * - Set PSA CRC to make PtP diagnostic tool happy (Bob Gray) + * - Module init code don't fail if we found at least one card in + * the address list (Karlis Peisenieks) + * - Missing parenthesis (Christopher Peterson) + * - Correct i82586 configuration parameters + * - Encryption initialisation bug (Robert McCormack) + * - New mac addresses detected in the probe + * - Increase watchdog for busy environments + * + * Changes made for release in 2.0.38 & 2.2.7 : + * ------------------------------------------ + * - Correct the reception logic to better report errors and avoid + * sending bogus packet up the stack + * - Delay RU config to avoid corrupting first received packet + * - Change config completion code (to actually check something) + * - Avoid reading out of bound in skbuf to transmit + * - Rectify a lot of (useless) debugging code + * - Change the way to `#ifdef SET_PSA_CRC' + * + * Changes made for release in 2.2.11 & 2.3.13 : + * ------------------------------------------- + * - Change e-mail and web page addresses + * - Watchdog timer is now correctly expressed in HZ, not in jiffies + * - Add channel number to the list of frequencies in range + * - Add the (short) list of bit-rates in range + * - Developp a new sensitivity... (sens.value & sens.fixed) + * + * Changes made for release in 2.2.14 & 2.3.23 : + * ------------------------------------------- + * - Fix check for root permission (break instead of exit) + * - New nwid & encoding setting (Wireless Extension 9) + * + * Changes made for release in 2.3.49 : + * ---------------------------------- + * - Indentation reformating (Alan) + * - Update to new network API (softnet - 2.3.43) : + * o replace dev->tbusy (Alan) + * o replace dev->tstart (Alan) + * o remove dev->interrupt (Alan) + * o add SMP locking via spinlock in splxx (me) + * o add spinlock in interrupt handler (me) + * o use kernel watchdog instead of ours (me) + * o increase watchdog timeout (kernel is more sensitive) (me) + * o verify that all the changes make sense and work (me) + * - Fixup a potential gotcha when reconfiguring and thighten a bit + * the interactions with Tx queue. + * + * Changes made for release in 2.4.0 : + * --------------------------------- + * - Fix spinlock stupid bugs that I left in. The driver is now SMP + * compliant and doesn't lockup at startup. + * + * Changes made for release in 2.5.2 : + * --------------------------------- + * - Use new driver API for Wireless Extensions : + * o got rid of wavelan_ioctl() + * o use a bunch of iw_handler instead + * + * Changes made for release in 2.5.35 : + * ---------------------------------- + * - Set dev->trans_start to avoid filling the logs + * - Handle better spurious/bogus interrupt + * - Avoid deadlocks in mmc_out()/mmc_in() + * + * Wishes & dreams: + * ---------------- + * - roaming (see Pcmcia driver) + */ + +/***************************** INCLUDES *****************************/ + +#include <linux/module.h> + +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/types.h> +#include <linux/fcntl.h> +#include <linux/interrupt.h> +#include <linux/stat.h> +#include <linux/ptrace.h> +#include <linux/ioport.h> +#include <linux/in.h> +#include <linux/string.h> +#include <linux/delay.h> +#include <linux/bitops.h> +#include <asm/system.h> +#include <asm/io.h> +#include <asm/dma.h> +#include <asm/uaccess.h> +#include <linux/errno.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/skbuff.h> +#include <linux/slab.h> +#include <linux/timer.h> +#include <linux/init.h> + +#include <linux/wireless.h> /* Wireless extensions */ +#include <net/iw_handler.h> /* Wireless handlers */ + +/* WaveLAN declarations */ +#include "i82586.h" +#include "wavelan.h" + +/************************** DRIVER OPTIONS **************************/ +/* + * `#define' or `#undef' the following constant to change the behaviour + * of the driver... + */ +#undef SET_PSA_CRC /* Calculate and set the CRC on PSA (slower) */ +#define USE_PSA_CONFIG /* Use info from the PSA. */ +#undef STRUCT_CHECK /* Verify padding of structures. */ +#undef EEPROM_IS_PROTECTED /* doesn't seem to be necessary */ +#define MULTICAST_AVOID /* Avoid extra multicast (I'm sceptical). */ +#undef SET_MAC_ADDRESS /* Experimental */ + +#ifdef WIRELESS_EXT /* If wireless extensions exist in the kernel */ +/* Warning: this stuff will slow down the driver. */ +#define WIRELESS_SPY /* Enable spying addresses. */ +#undef HISTOGRAM /* Enable histogram of signal level. */ +#endif + +/****************************** DEBUG ******************************/ + +#undef DEBUG_MODULE_TRACE /* module insertion/removal */ +#undef DEBUG_CALLBACK_TRACE /* calls made by Linux */ +#undef DEBUG_INTERRUPT_TRACE /* calls to handler */ +#undef DEBUG_INTERRUPT_INFO /* type of interrupt and so on */ +#define DEBUG_INTERRUPT_ERROR /* problems */ +#undef DEBUG_CONFIG_TRACE /* Trace the config functions. */ +#undef DEBUG_CONFIG_INFO /* what's going on */ +#define DEBUG_CONFIG_ERROR /* errors on configuration */ +#undef DEBUG_TX_TRACE /* transmission calls */ +#undef DEBUG_TX_INFO /* header of the transmitted packet */ +#undef DEBUG_TX_FAIL /* Normal failure conditions */ +#define DEBUG_TX_ERROR /* Unexpected conditions */ +#undef DEBUG_RX_TRACE /* transmission calls */ +#undef DEBUG_RX_INFO /* header of the received packet */ +#undef DEBUG_RX_FAIL /* Normal failure conditions */ +#define DEBUG_RX_ERROR /* Unexpected conditions */ + +#undef DEBUG_PACKET_DUMP /* Dump packet on the screen if defined to 32. */ +#undef DEBUG_IOCTL_TRACE /* misc. call by Linux */ +#undef DEBUG_IOCTL_INFO /* various debugging info */ +#define DEBUG_IOCTL_ERROR /* what's going wrong */ +#define DEBUG_BASIC_SHOW /* Show basic startup info. */ +#undef DEBUG_VERSION_SHOW /* Print version info. */ +#undef DEBUG_PSA_SHOW /* Dump PSA to screen. */ +#undef DEBUG_MMC_SHOW /* Dump mmc to screen. */ +#undef DEBUG_SHOW_UNUSED /* Show unused fields too. */ +#undef DEBUG_I82586_SHOW /* Show i82586 status. */ +#undef DEBUG_DEVICE_SHOW /* Show device parameters. */ + +/************************ CONSTANTS & MACROS ************************/ + +#ifdef DEBUG_VERSION_SHOW +static const char *version = "wavelan.c : v24 (SMP + wireless extensions) 11/12/01\n"; +#endif + +/* Watchdog temporisation */ +#define WATCHDOG_JIFFIES (512*HZ/100) + +/* Macro to get the number of elements in an array */ +#define NELS(a) (sizeof(a) / sizeof(a[0])) + +/* ------------------------ PRIVATE IOCTL ------------------------ */ + +#define SIOCSIPQTHR SIOCIWFIRSTPRIV /* Set quality threshold */ +#define SIOCGIPQTHR SIOCIWFIRSTPRIV + 1 /* Get quality threshold */ + +#define SIOCSIPHISTO SIOCIWFIRSTPRIV + 2 /* Set histogram ranges */ +#define SIOCGIPHISTO SIOCIWFIRSTPRIV + 3 /* Get histogram values */ + +/****************************** TYPES ******************************/ + +/* Shortcuts */ +typedef struct net_device_stats en_stats; +typedef struct iw_statistics iw_stats; +typedef struct iw_quality iw_qual; +typedef struct iw_freq iw_freq; +typedef struct net_local net_local; +typedef struct timer_list timer_list; + +/* Basic types */ +typedef u_char mac_addr[WAVELAN_ADDR_SIZE]; /* Hardware address */ + +/* + * Static specific data for the interface. + * + * For each network interface, Linux keeps data in two structures: "device" + * keeps the generic data (same format for everybody) and "net_local" keeps + * additional specific data. + * Note that some of this specific data is in fact generic (en_stats, for + * example). + */ +struct net_local +{ + net_local * next; /* linked list of the devices */ + struct net_device * dev; /* reverse link */ + spinlock_t spinlock; /* Serialize access to the hardware (SMP) */ + en_stats stats; /* Ethernet interface statistics */ + int nresets; /* number of hardware resets */ + u_char reconfig_82586; /* We need to reconfigure the controller. */ + u_char promiscuous; /* promiscuous mode */ + int mc_count; /* number of multicast addresses */ + u_short hacr; /* current host interface state */ + + int tx_n_in_use; + u_short rx_head; + u_short rx_last; + u_short tx_first_free; + u_short tx_first_in_use; + +#ifdef WIRELESS_EXT + iw_stats wstats; /* Wireless-specific statistics */ + + struct iw_spy_data spy_data; + struct iw_public_data wireless_data; +#endif + +#ifdef HISTOGRAM + int his_number; /* number of intervals */ + u_char his_range[16]; /* boundaries of interval ]n-1; n] */ + u_long his_sum[16]; /* sum in interval */ +#endif /* HISTOGRAM */ +}; + +/**************************** PROTOTYPES ****************************/ + +/* ----------------------- MISC. SUBROUTINES ------------------------ */ +static u_char + wv_irq_to_psa(int); +static int + wv_psa_to_irq(u_char); +/* ------------------- HOST ADAPTER SUBROUTINES ------------------- */ +static inline u_short /* data */ + hasr_read(u_long); /* Read the host interface: base address */ +static inline void + hacr_write(u_long, /* Write to host interface: base address */ + u_short), /* data */ + hacr_write_slow(u_long, + u_short), + set_chan_attn(u_long, /* ioaddr */ + u_short), /* hacr */ + wv_hacr_reset(u_long), /* ioaddr */ + wv_16_off(u_long, /* ioaddr */ + u_short), /* hacr */ + wv_16_on(u_long, /* ioaddr */ + u_short), /* hacr */ + wv_ints_off(struct net_device *), + wv_ints_on(struct net_device *); +/* ----------------- MODEM MANAGEMENT SUBROUTINES ----------------- */ +static void + psa_read(u_long, /* Read the Parameter Storage Area. */ + u_short, /* hacr */ + int, /* offset in PSA */ + u_char *, /* buffer to fill */ + int), /* size to read */ + psa_write(u_long, /* Write to the PSA. */ + u_short, /* hacr */ + int, /* offset in PSA */ + u_char *, /* buffer in memory */ + int); /* length of buffer */ +static inline void + mmc_out(u_long, /* Write 1 byte to the Modem Manag Control. */ + u_short, + u_char), + mmc_write(u_long, /* Write n bytes to the MMC. */ + u_char, + u_char *, + int); +static inline u_char /* Read 1 byte from the MMC. */ + mmc_in(u_long, + u_short); +static inline void + mmc_read(u_long, /* Read n bytes from the MMC. */ + u_char, + u_char *, + int), + fee_wait(u_long, /* Wait for frequency EEPROM: base address */ + int, /* base delay to wait for */ + int); /* time to wait */ +static void + fee_read(u_long, /* Read the frequency EEPROM: base address */ + u_short, /* destination offset */ + u_short *, /* data buffer */ + int); /* number of registers */ +/* ---------------------- I82586 SUBROUTINES ----------------------- */ +static /*inline*/ void + obram_read(u_long, /* ioaddr */ + u_short, /* o */ + u_char *, /* b */ + int); /* n */ +static inline void + obram_write(u_long, /* ioaddr */ + u_short, /* o */ + u_char *, /* b */ + int); /* n */ +static void + wv_ack(struct net_device *); +static inline int + wv_synchronous_cmd(struct net_device *, + const char *), + wv_config_complete(struct net_device *, + u_long, + net_local *); +static int + wv_complete(struct net_device *, + u_long, + net_local *); +static inline void + wv_82586_reconfig(struct net_device *); +/* ------------------- DEBUG & INFO SUBROUTINES ------------------- */ +#ifdef DEBUG_I82586_SHOW +static void + wv_scb_show(unsigned short); +#endif +static inline void + wv_init_info(struct net_device *); /* display startup info */ +/* ------------------- IOCTL, STATS & RECONFIG ------------------- */ +static en_stats * + wavelan_get_stats(struct net_device *); /* Give stats /proc/net/dev */ +static iw_stats * + wavelan_get_wireless_stats(struct net_device *); +static void + wavelan_set_multicast_list(struct net_device *); +/* ----------------------- PACKET RECEPTION ----------------------- */ +static inline void + wv_packet_read(struct net_device *, /* Read a packet from a frame. */ + u_short, + int), + wv_receive(struct net_device *); /* Read all packets waiting. */ +/* --------------------- PACKET TRANSMISSION --------------------- */ +static inline int + wv_packet_write(struct net_device *, /* Write a packet to the Tx buffer. */ + void *, + short); +static int + wavelan_packet_xmit(struct sk_buff *, /* Send a packet. */ + struct net_device *); +/* -------------------- HARDWARE CONFIGURATION -------------------- */ +static inline int + wv_mmc_init(struct net_device *), /* Initialize the modem. */ + wv_ru_start(struct net_device *), /* Start the i82586 receiver unit. */ + wv_cu_start(struct net_device *), /* Start the i82586 command unit. */ + wv_82586_start(struct net_device *); /* Start the i82586. */ +static void + wv_82586_config(struct net_device *); /* Configure the i82586. */ +static inline void + wv_82586_stop(struct net_device *); +static int + wv_hw_reset(struct net_device *), /* Reset the WaveLAN hardware. */ + wv_check_ioaddr(u_long, /* ioaddr */ + u_char *); /* mac address (read) */ +/* ---------------------- INTERRUPT HANDLING ---------------------- */ +static irqreturn_t + wavelan_interrupt(int, /* interrupt handler */ + void *, + struct pt_regs *); +static void + wavelan_watchdog(struct net_device *); /* transmission watchdog */ +/* ------------------- CONFIGURATION CALLBACKS ------------------- */ +static int + wavelan_open(struct net_device *), /* Open the device. */ + wavelan_close(struct net_device *), /* Close the device. */ + wavelan_config(struct net_device *, unsigned short);/* Configure one device. */ +extern struct net_device *wavelan_probe(int unit); /* See Space.c. */ + +/**************************** VARIABLES ****************************/ + +/* + * This is the root of the linked list of WaveLAN drivers + * It is use to verify that we don't reuse the same base address + * for two different drivers and to clean up when removing the module. + */ +static net_local * wavelan_list = (net_local *) NULL; + +/* + * This table is used to translate the PSA value to IRQ number + * and vice versa. + */ +static u_char irqvals[] = +{ + 0, 0, 0, 0x01, + 0x02, 0x04, 0, 0x08, + 0, 0, 0x10, 0x20, + 0x40, 0, 0, 0x80, +}; + +/* + * Table of the available I/O addresses (base addresses) for WaveLAN + */ +static unsigned short iobase[] = +{ +#if 0 + /* Leave out 0x3C0 for now -- seems to clash with some video + * controllers. + * Leave out the others too -- we will always use 0x390 and leave + * 0x300 for the Ethernet device. + * Jean II: 0x3E0 is fine as well. + */ + 0x300, 0x390, 0x3E0, 0x3C0 +#endif /* 0 */ + 0x390, 0x3E0 +}; + +#ifdef MODULE +/* Parameters set by insmod */ +static int io[4]; +static int irq[4]; +static char *name[4]; +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +module_param_array(name, charp, NULL, 0); + +MODULE_PARM_DESC(io, "WaveLAN I/O base address(es),required"); +MODULE_PARM_DESC(irq, "WaveLAN IRQ number(s)"); +MODULE_PARM_DESC(name, "WaveLAN interface neme(s)"); +#endif /* MODULE */ + +#endif /* WAVELAN_P_H */ |