/*
* 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.
*
* It might 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 */
/* Warning: this stuff will slow down the driver. */
#define WIRELESS_SPY /* Enable spying addresses. */
#undef HISTOGRAM /* Enable histogram of signal level. */
/****************************** 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)
/* ------------------------ 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;
iw_stats wstats; /* Wireless-specific statistics */
struct iw_spy_data spy_data;
struct iw_public_data wireless_data;
#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 *);
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 */
