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airo.c：源码内容

/*======================================================================
Aironet driver for 4500 and 4800 series cards
This code is released under both the GPL version 2 and BSD licenses.
Either license may be used. The respective licenses are found at
the end of this file.
This code was developed by Benjamin Reed <breed@users.sourceforge.net>
including portions of which come from the Aironet PC4500
Developer's Reference Manual and used with permission. Copyright
code in the Developer's manual was granted for this driver by
Aironet. Major code contributions were received from Javier Achirica
<achirica@users.sourceforge.net> and Jean Tourrilhes <jt@hpl.hp.com>.
Code was also integrated from the Cisco Aironet driver for Linux.
======================================================================*/
#include <linux/config.h>
#include <linux/version.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/sched.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/in.h>
#include <linux/tqueue.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/bitops.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/if_arp.h>
#include <linux/ioport.h>
#include <linux/config.h>
#include <linux/pci.h>
#include <asm/uaccess.h>
#ifdef CONFIG_PCI
static struct pci_device_id card_ids[] __devinitdata = {
{ 0x14b9, 1, PCI_ANY_ID, PCI_ANY_ID, },
{ 0x14b9, 0x4500, PCI_ANY_ID, PCI_ANY_ID },
{ 0x14b9, 0x4800, PCI_ANY_ID, PCI_ANY_ID, },
{ 0x14b9, 0x0340, PCI_ANY_ID, PCI_ANY_ID, },
{ 0x14b9, 0x0350, PCI_ANY_ID, PCI_ANY_ID, },
{ 0, }
};
MODULE_DEVICE_TABLE(pci, card_ids);
static int airo_pci_probe(struct pci_dev *, const struct pci_device_id *);
static void airo_pci_remove(struct pci_dev *);
static struct pci_driver airo_driver = {
name: "airo",
id_table: card_ids,
probe: airo_pci_probe,
remove: __devexit_p(airo_pci_remove),
};
#endif /* CONFIG_PCI */
/* Include Wireless Extension definition and check version - Jean II */
#include <linux/wireless.h>
#define WIRELESS_SPY // enable iwspy support
#if WIRELESS_EXT > 12
#include <net/iw_handler.h> // New driver API
#endif /* WIRELESS_EXT > 12 */
#define CISCO_EXT // enable Cisco extensions
#ifdef CISCO_EXT
#include <linux/delay.h>
#endif
/* Support Cisco MIC feature */
/* As this feature requires the AES encryption algorithm, it is not included
in the kernel tree. If you want to enable it, you need to download the
aes.h, aestab.h and mic.h files from the CVS at
http://sf.net/projects/airo-linux/ Put the files in the same directory
as airo.c and compile normally */
#undef MICSUPPORT
/* Hack to do some power saving */
#define POWER_ON_DOWN
/* As you can see this list is HUGH!
I really don't know what a lot of these counts are about, but they
are all here for completeness. If the IGNLABEL macro is put in
infront of the label, that statistic will not be included in the list
of statistics in the /proc filesystem */
#define IGNLABEL 0&(int)
static char *statsLabels[] = {
"RxOverrun",
IGNLABEL "RxPlcpCrcErr",
IGNLABEL "RxPlcpFormatErr",
IGNLABEL "RxPlcpLengthErr",
"RxMacCrcErr",
"RxMacCrcOk",
"RxWepErr",
"RxWepOk",
"RetryLong",
"RetryShort",
"MaxRetries",
"NoAck",
"NoCts",
"RxAck",
"RxCts",
"TxAck",
"TxRts",
"TxCts",
"TxMc",
"TxBc",
"TxUcFrags",
"TxUcPackets",
"TxBeacon",
"RxBeacon",
"TxSinColl",
"TxMulColl",
"DefersNo",
"DefersProt",
"DefersEngy",
"DupFram",
"RxFragDisc",
"TxAged",
"RxAged",
"LostSync-MaxRetry",
"LostSync-MissedBeacons",
"LostSync-ArlExceeded",
"LostSync-Deauth",
"LostSync-Disassoced",
"LostSync-TsfTiming",
"HostTxMc",
"HostTxBc",
"HostTxUc",
"HostTxFail",
"HostRxMc",
"HostRxBc",
"HostRxUc",
"HostRxDiscard",
IGNLABEL "HmacTxMc",
IGNLABEL "HmacTxBc",
IGNLABEL "HmacTxUc",
IGNLABEL "HmacTxFail",
IGNLABEL "HmacRxMc",
IGNLABEL "HmacRxBc",
IGNLABEL "HmacRxUc",
IGNLABEL "HmacRxDiscard",
IGNLABEL "HmacRxAccepted",
"SsidMismatch",
"ApMismatch",
"RatesMismatch",
"AuthReject",
"AuthTimeout",
"AssocReject",
"AssocTimeout",
IGNLABEL "ReasonOutsideTable",
IGNLABEL "ReasonStatus1",
IGNLABEL "ReasonStatus2",
IGNLABEL "ReasonStatus3",
IGNLABEL "ReasonStatus4",
IGNLABEL "ReasonStatus5",
IGNLABEL "ReasonStatus6",
IGNLABEL "ReasonStatus7",
IGNLABEL "ReasonStatus8",
IGNLABEL "ReasonStatus9",
IGNLABEL "ReasonStatus10",
IGNLABEL "ReasonStatus11",
IGNLABEL "ReasonStatus12",
IGNLABEL "ReasonStatus13",
IGNLABEL "ReasonStatus14",
IGNLABEL "ReasonStatus15",
IGNLABEL "ReasonStatus16",
IGNLABEL "ReasonStatus17",
IGNLABEL "ReasonStatus18",
IGNLABEL "ReasonStatus19",
"RxMan",
"TxMan",
"RxRefresh",
"TxRefresh",
"RxPoll",
"TxPoll",
"HostRetries",
"LostSync-HostReq",
"HostTxBytes",
"HostRxBytes",
"ElapsedUsec",
"ElapsedSec",
"LostSyncBetterAP",
"PrivacyMismatch",
"Jammed",
"DiscRxNotWepped",
"PhyEleMismatch",
(char*)-1 };
#ifndef RUN_AT
#define RUN_AT(x) (jiffies+(x))
#endif
#if LINUX_VERSION_CODE < 0x020500
static inline struct proc_dir_entry *PDE(const struct inode *inode)
{
return inode->u.generic_ip;
}
#endif
/* These variables are for insmod, since it seems that the rates
can only be set in setup_card. Rates should be a comma separated
(no spaces) list of rates (up to 8). */
static int rates[8];
static int basic_rate;
static char *ssids[3];
static int io[4];
static int irq[4];
static
int maxencrypt /* = 0 */; /* The highest rate that the card can encrypt at.
0 means no limit. For old cards this was 4 */
static int auto_wep /* = 0 */; /* If set, it tries to figure out the wep mode */
static int aux_bap /* = 0 */; /* Checks to see if the aux ports are needed to read
the bap, needed on some older cards and buses. */
static int adhoc;
static int probe = 1;
static int proc_uid /* = 0 */;
static int proc_gid /* = 0 */;
static int airo_perm = 0555;
static int proc_perm = 0644;
MODULE_AUTHOR("Benjamin Reed");
MODULE_DESCRIPTION("Support for Cisco/Aironet 802.11 wireless ethernet
cards. Direct support for ISA/PCI cards and support
for PCMCIA when used with airo_cs.");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_SUPPORTED_DEVICE("Aironet 4500, 4800 and Cisco 340");
MODULE_PARM(io,"1-4i");
MODULE_PARM(irq,"1-4i");
MODULE_PARM(basic_rate,"i");
MODULE_PARM(rates,"1-8i");
MODULE_PARM(ssids,"1-3s");
MODULE_PARM(auto_wep,"i");
MODULE_PARM_DESC(auto_wep, "If non-zero, the driver will keep looping through
the authentication options until an association is made. The value of
auto_wep is number of the wep keys to check. A value of 2 will try using
the key at index 0 and index 1.");
MODULE_PARM(aux_bap,"i");
MODULE_PARM_DESC(aux_bap, "If non-zero, the driver will switch into a mode
than seems to work better for older cards with some older buses. Before
switching it checks that the switch is needed.");
MODULE_PARM(maxencrypt, "i");
MODULE_PARM_DESC(maxencrypt, "The maximum speed that the card can do
encryption. Units are in 512kbs. Zero (default) means there is no limit.
Older cards used to be limited to 2mbs (4).");
MODULE_PARM(adhoc, "i");
MODULE_PARM_DESC(adhoc, "If non-zero, the card will start in adhoc mode.");
MODULE_PARM(probe, "i");
MODULE_PARM_DESC(probe, "If zero, the driver won't start the card.");
MODULE_PARM(proc_uid, "i");
MODULE_PARM_DESC(proc_uid, "The uid that the /proc files will belong to.");
MODULE_PARM(proc_gid, "i");
MODULE_PARM_DESC(proc_gid, "The gid that the /proc files will belong to.");
MODULE_PARM(airo_perm, "i");
MODULE_PARM_DESC(airo_perm, "The permission bits of /proc/[driver/]aironet.");
MODULE_PARM(proc_perm, "i");
MODULE_PARM_DESC(proc_perm, "The permission bits of the files in /proc");
/* This is a kind of sloppy hack to get this information to OUT4500 and
IN4500. I would be extremely interested in the situation where this
doesn't work though!!! */
static int do8bitIO = 0;
/* Return codes */
#define SUCCESS 0
#define ERROR -1
#define NO_PACKET -2
/* Commands */
#define NOP2 0x0000
#define MAC_ENABLE 0x0001
#define MAC_DISABLE 0x0002
#define CMD_LOSE_SYNC 0x0003 /* Not sure what this does... */
#define CMD_SOFTRESET 0x0004
#define HOSTSLEEP 0x0005
#define CMD_MAGIC_PKT 0x0006
#define CMD_SETWAKEMASK 0x0007
#define CMD_READCFG 0x0008
#define CMD_SETMODE 0x0009
#define CMD_ALLOCATETX 0x000a
#define CMD_TRANSMIT 0x000b
#define CMD_DEALLOCATETX 0x000c
#define NOP 0x0010
#define CMD_WORKAROUND 0x0011
#define CMD_ACCESS 0x0021
#define CMD_PCIBAP 0x0022
#define CMD_PCIAUX 0x0023
#define CMD_ALLOCBUF 0x0028
#define CMD_GETTLV 0x0029
#define CMD_PUTTLV 0x002a
#define CMD_DELTLV 0x002b
#define CMD_FINDNEXTTLV 0x002c
#define CMD_PSPNODES 0x0030
#define CMD_SETCW 0x0031
#define CMD_SETPCF 0x0032
#define CMD_SETPHYREG 0x003e
#define CMD_TXTEST 0x003f
#define MAC_ENABLETX 0x0101
#define CMD_LISTBSS 0x0103
#define CMD_SAVECFG 0x0108
#define CMD_ENABLEAUX 0x0111
#define CMD_WRITERID 0x0121
#define CMD_USEPSPNODES 0x0130
#define MAC_ENABLERX 0x0201
/* Command errors */
#define ERROR_QUALIF 0x00
#define ERROR_ILLCMD 0x01
#define ERROR_ILLFMT 0x02
#define ERROR_INVFID 0x03
#define ERROR_INVRID 0x04
#define ERROR_LARGE 0x05
#define ERROR_NDISABL 0x06
#define ERROR_ALLOCBSY 0x07
#define ERROR_NORD 0x0B
#define ERROR_NOWR 0x0C
#define ERROR_INVFIDTX 0x0D
#define ERROR_TESTACT 0x0E
#define ERROR_TAGNFND 0x12
#define ERROR_DECODE 0x20
#define ERROR_DESCUNAV 0x21
#define ERROR_BADLEN 0x22
#define ERROR_MODE 0x80
#define ERROR_HOP 0x81
#define ERROR_BINTER 0x82
#define ERROR_RXMODE 0x83
#define ERROR_MACADDR 0x84
#define ERROR_RATES 0x85
#define ERROR_ORDER 0x86
#define ERROR_SCAN 0x87
#define ERROR_AUTH 0x88
#define ERROR_PSMODE 0x89
#define ERROR_RTYPE 0x8A
#define ERROR_DIVER 0x8B
#define ERROR_SSID 0x8C
#define ERROR_APLIST 0x8D
#define ERROR_AUTOWAKE 0x8E
#define ERROR_LEAP 0x8F
/* Registers */
#define COMMAND 0x00
#define PARAM0 0x02
#define PARAM1 0x04
#define PARAM2 0x06
#define STATUS 0x08
#define RESP0 0x0a
#define RESP1 0x0c
#define RESP2 0x0e
#define LINKSTAT 0x10
#define SELECT0 0x18
#define OFFSET0 0x1c
#define RXFID 0x20
#define TXALLOCFID 0x22
#define TXCOMPLFID 0x24
#define DATA0 0x36
#define EVSTAT 0x30
#define EVINTEN 0x32
#define EVACK 0x34
#define SWS0 0x28
#define SWS1 0x2a
#define SWS2 0x2c
#define SWS3 0x2e
#define AUXPAGE 0x3A
#define AUXOFF 0x3C
#define AUXDATA 0x3E
/* BAP selectors */
#define BAP0 0 // Used for receiving packets
#define BAP1 2 // Used for xmiting packets and working with RIDS
/* Flags */
#define COMMAND_BUSY 0x8000
#define BAP_BUSY 0x8000
#define BAP_ERR 0x4000
#define BAP_DONE 0x2000
#define PROMISC 0xffff
#define NOPROMISC 0x0000
#define EV_CMD 0x10
#define EV_CLEARCOMMANDBUSY 0x4000
#define EV_RX 0x01
#define EV_TX 0x02
#define EV_TXEXC 0x04
#define EV_ALLOC 0x08
#define EV_LINK 0x80
#define EV_AWAKE 0x100
#define EV_UNKNOWN 0x800
#define EV_MIC 0x1000 /* Message Integrity Check Interrupt */
#define STATUS_INTS ( EV_AWAKE | EV_LINK | EV_TXEXC | EV_TX | EV_RX | EV_MIC )
#ifdef CHECK_UNKNOWN_INTS
#define IGNORE_INTS ( EV_CMD | EV_UNKNOWN)
#else
#define IGNORE_INTS (~STATUS_INTS)
#endif
/* The RIDs */
#define RID_CAPABILITIES 0xFF00
#define RID_APINFO 0xFF01
#define RID_RADIOINFO 0xFF02
#define RID_UNKNOWN3 0xFF03
#define RID_RSSI 0xFF04
#define RID_CONFIG 0xFF10
#define RID_SSID 0xFF11
#define RID_APLIST 0xFF12
#define RID_DRVNAME 0xFF13
#define RID_ETHERENCAP 0xFF14
#define RID_WEP_TEMP 0xFF15
#define RID_WEP_PERM 0xFF16
#define RID_MODULATION 0xFF17
#define RID_OPTIONS 0xFF18
#define RID_ACTUALCONFIG 0xFF20 /*readonly*/
#define RID_FACTORYCONFIG 0xFF21
#define RID_UNKNOWN22 0xFF22
#define RID_LEAPUSERNAME 0xFF23
#define RID_LEAPPASSWORD 0xFF24
#define RID_STATUS 0xFF50
#define RID_BEACON_HST 0xFF51
#define RID_BUSY_HST 0xFF52
#define RID_RETRIES_HST 0xFF53
#define RID_UNKNOWN54 0xFF54
#define RID_UNKNOWN55 0xFF55
#define RID_UNKNOWN56 0xFF56
#define RID_MIC 0xFF57
#define RID_STATS16 0xFF60
#define RID_STATS16DELTA 0xFF61
#define RID_STATS16DELTACLEAR 0xFF62
#define RID_STATS 0xFF68
#define RID_STATSDELTA 0xFF69
#define RID_STATSDELTACLEAR 0xFF6A
#define RID_ECHOTEST_RID 0xFF70
#define RID_ECHOTEST_RESULTS 0xFF71
#define RID_BSSLISTFIRST 0xFF72
#define RID_BSSLISTNEXT 0xFF73
typedef struct {
u16 cmd;
u16 parm0;
u16 parm1;
u16 parm2;
} Cmd;
typedef struct {
u16 status;
u16 rsp0;
u16 rsp1;
u16 rsp2;
} Resp;
/*
* Rids and endian-ness: The Rids will always be in cpu endian, since
* this all the patches from the big-endian guys end up doing that.
* so all rid access should use the read/writeXXXRid routines.
*/
/* This is redundant for x86 archs, but it seems necessary for ARM */
#pragma pack(1)
/* This structure came from an email sent to me from an engineer at
aironet for inclusion into this driver */
typedef struct {
u16 len;
u16 kindex;
u8 mac[ETH_ALEN];
u16 klen;
u8 key[16];
} WepKeyRid;
/* These structures are from the Aironet's PC4500 Developers Manual */
typedef struct {
u16 len;
u8 ssid[32];
} Ssid;
typedef struct {
u16 len;
Ssid ssids[3];
} SsidRid;
typedef struct {
u16 len;
u16 modulation;
#define MOD_DEFAULT 0
#define MOD_CCK 1
#define MOD_MOK 2
} ModulationRid;
typedef struct {
u16 len; /* sizeof(ConfigRid) */
u16 opmode; /* operating mode */
#define MODE_STA_IBSS 0
#define MODE_STA_ESS 1
#define MODE_AP 2
#define MODE_AP_RPTR 3
#define MODE_ETHERNET_HOST (0<<8) /* rx payloads converted */
#define MODE_LLC_HOST (1<<8) /* rx payloads left as is */
#define MODE_AIRONET_EXTEND (1<<9) /* enable Aironet extenstions */
#define MODE_AP_INTERFACE (1<<10) /* enable ap interface extensions */
#define MODE_ANTENNA_ALIGN (1<<11) /* enable antenna alignment */
#define MODE_ETHER_LLC (1<<12) /* enable ethernet LLC */
#define MODE_LEAF_NODE (1<<13) /* enable leaf node bridge */
#define MODE_CF_POLLABLE (1<<14) /* enable CF pollable */
#define MODE_MIC (1<<15) /* enable MIC */
u16 rmode; /* receive mode */
#define RXMODE_BC_MC_ADDR 0
#define RXMODE_BC_ADDR 1 /* ignore multicasts */
#define RXMODE_ADDR 2 /* ignore multicast and broadcast */
#define RXMODE_RFMON 3 /* wireless monitor mode */
#define RXMODE_RFMON_ANYBSS 4
#define RXMODE_LANMON 5 /* lan style monitor -- data packets only */
#define RXMODE_DISABLE_802_3_HEADER (1<<8) /* disables 802.3 header on rx */
#define RXMODE_NORMALIZED_RSSI (1<<9) /* return normalized RSSI */
u16 fragThresh;
u16 rtsThres;
u8 macAddr[ETH_ALEN];
u8 rates[8];
u16 shortRetryLimit;
u16 longRetryLimit;
u16 txLifetime; /* in kusec */
u16 rxLifetime; /* in kusec */
u16 stationary;
u16 ordering;
u16 u16deviceType; /* for overriding device type */
u16 cfpRate;
u16 cfpDuration;
u16 _reserved1[3];
/*---------- Scanning/Associating ----------*/
u16 scanMode;
#define SCANMODE_ACTIVE 0
#define SCANMODE_PASSIVE 1
#define SCANMODE_AIROSCAN 2
u16 probeDelay; /* in kusec */
u16 probeEnergyTimeout; /* in kusec */
u16 probeResponseTimeout;
u16 beaconListenTimeout;
u16 joinNetTimeout;
u16 authTimeout;
u16 authType;
#define AUTH_OPEN 0x1
#define AUTH_ENCRYPT 0x101
#define AUTH_SHAREDKEY 0x102
#define AUTH_ALLOW_UNENCRYPTED 0x200
u16 associationTimeout;
u16 specifiedApTimeout;
u16 offlineScanInterval;
u16 offlineScanDuration;
u16 linkLossDelay;
u16 maxBeaconLostTime;
u16 refreshInterval;
#define DISABLE_REFRESH 0xFFFF
u16 _reserved1a[1];
/*---------- Power save operation ----------*/
u16 powerSaveMode;
#define POWERSAVE_CAM 0
#define POWERSAVE_PSP 1
#define POWERSAVE_PSPCAM 2
u16 sleepForDtims;
u16 listenInterval;
u16 fastListenInterval;
u16 listenDecay;
u16 fastListenDelay;
u16 _reserved2[2];
/*---------- Ap/Ibss config items ----------*/
u16 beaconPeriod;
u16 atimDuration;
u16 hopPeriod;
u16 channelSet;
u16 channel;
u16 dtimPeriod;
u16 bridgeDistance;
u16 radioID;
/*---------- Radio configuration ----------*/
u16 radioType;
#define RADIOTYPE_DEFAULT 0
#define RADIOTYPE_802_11 1
#define RADIOTYPE_LEGACY 2
u8 rxDiversity;
u8 txDiversity;
u16 txPower;
#define TXPOWER_DEFAULT 0
u16 rssiThreshold;
#define RSSI_DEFAULT 0
u16 modulation;
#define PREAMBLE_AUTO 0
#define PREAMBLE_LONG 1
#define PREAMBLE_SHORT 2
u16 preamble;
u16 homeProduct;
u16 radioSpecific;
/*---------- Aironet Extensions ----------*/
u8 nodeName[16];
u16 arlThreshold;
u16 arlDecay;
u16 arlDelay;
u16 _reserved4[1];
/*---------- Aironet Extensions ----------*/
u16 magicAction;
#define MAGIC_ACTION_STSCHG 1
#define MACIC_ACTION_RESUME 2
#define MAGIC_IGNORE_MCAST (1<<8)
#define MAGIC_IGNORE_BCAST (1<<9)
#define MAGIC_SWITCH_TO_PSP (0<<10)
#define MAGIC_STAY_IN_CAM (1<<10)
u16 magicControl;
u16 autoWake;
} ConfigRid;
typedef struct {
u16 len;
u8 mac[ETH_ALEN];
u16 mode;
u16 errorCode;
u16 sigQuality;
u16 SSIDlen;
char SSID[32];
char apName[16];
char bssid[4][ETH_ALEN];
u16 beaconPeriod;
u16 dimPeriod;
u16 atimDuration;
u16 hopPeriod;
u16 channelSet;
u16 channel;
u16 hopsToBackbone;
u16 apTotalLoad;
u16 generatedLoad;
u16 accumulatedArl;
u16 signalQuality;
u16 currentXmitRate;
u16 apDevExtensions;
u16 normalizedSignalStrength;
u16 _reserved1;
u8 apIP[4];
u16 _reserved[7];
} StatusRid;
typedef struct {
u16 len;
u16 spacer;
u32 vals[100];
} StatsRid;
typedef struct {
u16 len;
u8 ap[4][ETH_ALEN];
} APListRid;
typedef struct {
u16 len;
char oui[3];
char zero;
u16 prodNum;
char manName[32];
char prodName[16];
char prodVer[8];
char factoryAddr[ETH_ALEN];
char aironetAddr[ETH_ALEN];
u16 radioType;
u16 country;
char callid[ETH_ALEN];
char supportedRates[8];
char rxDiversity;
char txDiversity;
u16 txPowerLevels[8];
u16 hardVer;
u16 hardCap;
u16 tempRange;
u16 softVer;
u16 softSubVer;
u16 interfaceVer;
u16 softCap;
u16 bootBlockVer;
u16 requiredHard;
u16 extSoftCap;
} CapabilityRid;
typedef struct {
u16 len;
u16 index; /* First is 0 and 0xffff means end of list */
#define RADIO_FH 1 /* Frequency hopping radio type */
#define RADIO_DS 2 /* Direct sequence radio type */
#define RADIO_TMA 4 /* Proprietary radio used in old cards (2500) */
u16 radioType;
u8 bssid[ETH_ALEN]; /* Mac address of the BSS */
u8 zero;
u8 ssidLen;
u8 ssid[32];
u16 rssi;
#define CAP_ESS (1<<0)
#define CAP_IBSS (1<<1)
#define CAP_PRIVACY (1<<4)
#define CAP_SHORTHDR (1<<5)
u16 cap;
u16 beaconInterval;
u8 rates[8]; /* Same as rates for config rid */
struct { /* For frequency hopping only */
u16 dwell;
u8 hopSet;
u8 hopPattern;
u8 hopIndex;
u8 fill;
} fh;
u16 dsChannel;
u16 atimWindow;
} BSSListRid;
typedef struct {
u8 rssipct;
u8 rssidBm;
} tdsRssiEntry;
typedef struct {
u16 len;
tdsRssiEntry x[256];
} tdsRssiRid;
typedef struct {
u16 len;
u16 state;
u16 multicastValid;
u8 multicast[16];
u16 unicastValid;
u8 unicast[16];
} MICRid;
typedef struct {
u16 typelen;
union {
u8 snap[8];
struct {
u8 dsap;
u8 ssap;
u8 control;
u8 orgcode[3];
u8 fieldtype[2];
} llc;
} u;
u32 mic;
u32 seq;
} MICBuffer;
typedef struct {
u8 da[ETH_ALEN];
u8 sa[ETH_ALEN];
} etherHead;
#pragma pack()
#define TXCTL_TXOK (1<<1) /* report if tx is ok */
#define TXCTL_TXEX (1<<2) /* report if tx fails */
#define TXCTL_802_3 (0<<3) /* 802.3 packet */
#define TXCTL_802_11 (1<<3) /* 802.11 mac packet */
#define TXCTL_ETHERNET (0<<4) /* payload has ethertype */
#define TXCTL_LLC (1<<4) /* payload is llc */
#define TXCTL_RELEASE (0<<5) /* release after completion */
#define TXCTL_NORELEASE (1<<5) /* on completion returns to host */
#define BUSY_FID 0x10000
#ifdef CISCO_EXT
#define AIROMAGIC 0xa55a
/* Warning : SIOCDEVPRIVATE may disapear during 2.5.X - Jean II */
#ifdef SIOCIWFIRSTPRIV
#ifdef SIOCDEVPRIVATE
#define AIROOLDIOCTL SIOCDEVPRIVATE
#define AIROOLDIDIFC AIROOLDIOCTL + 1
#endif /* SIOCDEVPRIVATE */
#else /* SIOCIWFIRSTPRIV */
#define SIOCIWFIRSTPRIV SIOCDEVPRIVATE
#endif /* SIOCIWFIRSTPRIV */
/* This may be wrong. When using the new SIOCIWFIRSTPRIV range, we probably
* should use only "GET" ioctls (last bit set to 1). "SET" ioctls are root
* only and don't return the modified struct ifreq to the application which
* is usually a problem. - Jean II */
#define AIROIOCTL SIOCIWFIRSTPRIV
#define AIROIDIFC AIROIOCTL + 1
/* Ioctl constants to be used in airo_ioctl.command */
#define AIROGCAP 0 // Capability rid
#define AIROGCFG 1 // USED A LOT
#define AIROGSLIST 2 // System ID list
#define AIROGVLIST 3 // List of specified AP's
#define AIROGDRVNAM 4 // NOTUSED
#define AIROGEHTENC 5 // NOTUSED
#define AIROGWEPKTMP 6
#define AIROGWEPKNV 7
#define AIROGSTAT 8
#define AIROGSTATSC32 9
#define AIROGSTATSD32 10
#define AIROGMICRID 11
#define AIROGMICSTATS 12
#define AIROGFLAGS 13
/* Leave gap of 40 commands after AIROGSTATSD32 for future */
#define AIROPCAP AIROGSTATSD32 + 40
#define AIROPVLIST AIROPCAP + 1
#define AIROPSLIST AIROPVLIST + 1
#define AIROPCFG AIROPSLIST + 1
#define AIROPSIDS AIROPCFG + 1
#define AIROPAPLIST AIROPSIDS + 1
#define AIROPMACON AIROPAPLIST + 1 /* Enable mac */
#define AIROPMACOFF AIROPMACON + 1 /* Disable mac */
#define AIROPSTCLR AIROPMACOFF + 1
#define AIROPWEPKEY AIROPSTCLR + 1
#define AIROPWEPKEYNV AIROPWEPKEY + 1
#define AIROPLEAPPWD AIROPWEPKEYNV + 1
#define AIROPLEAPUSR AIROPLEAPPWD + 1
/* Flash codes */
#define AIROFLSHRST AIROPWEPKEYNV + 40
#define AIROFLSHGCHR AIROFLSHRST + 1
#define AIROFLSHSTFL AIROFLSHGCHR + 1
#define AIROFLSHPCHR AIROFLSHSTFL + 1
#define AIROFLPUTBUF AIROFLSHPCHR + 1
#define AIRORESTART AIROFLPUTBUF + 1
#define FLASHSIZE 32768
typedef struct aironet_ioctl {
unsigned short command; // What to do
unsigned short len; // Len of data
unsigned char *data; // d-data
} aironet_ioctl;
#endif /* CISCO_EXT */
#define NUM_MODULES 2
#define MIC_MSGLEN_MAX 2400
#define EMMH32_MSGLEN_MAX MIC_MSGLEN_MAX
typedef struct {
u32 size; // size
u8 enabled; // MIC enabled or not
u32 rxSuccess; // successful packets received
u32 rxIncorrectMIC; // pkts dropped due to incorrect MIC comparison
u32 rxNotMICed; // pkts dropped due to not being MIC'd
u32 rxMICPlummed; // pkts dropped due to not having a MIC plummed
u32 rxWrongSequence; // pkts dropped due to sequence number violation
u32 reserve[32];
} mic_statistics;
typedef struct {
u32 coeff[((EMMH32_MSGLEN_MAX)+3)>>2];
u64 accum; // accumulated mic, reduced to u32 in final()
int position; // current position (byte offset) in message
union {
u8 d8[4];
u32 d32;
} part; // saves partial message word across update() calls
} emmh32_context;
typedef struct {
emmh32_context seed; // Context - the seed
u32 rx; // Received sequence number
u32 tx; // Tx sequence number
u32 window; // Start of window
u8 valid; // Flag to say if context is valid or not
u8 key[16];
} miccntx;
typedef struct {
miccntx mCtx; // Multicast context
miccntx uCtx; // Unicast context
} mic_module;
#ifdef WIRELESS_EXT
// Frequency list (map channels to frequencies)
const long frequency_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
2447, 2452, 2457, 2462, 2467, 2472, 2484 };
// A few details needed for WEP (Wireless Equivalent Privacy)
#define MAX_KEY_SIZE 13 // 128 (?) bits
#define MIN_KEY_SIZE 5 // 40 bits RC4 - WEP
typedef struct wep_key_t {
u16 len;
u8 key[16]; /* 40-bit and 104-bit keys */
} wep_key_t;
/* Backward compatibility */
#ifndef IW_ENCODE_NOKEY
#define IW_ENCODE_NOKEY 0x0800 /* Key is write only, so not present */
#define IW_ENCODE_MODE (IW_ENCODE_DISABLED | IW_ENCODE_RESTRICTED | IW_ENCODE_OPEN)
#endif /* IW_ENCODE_NOKEY */
#if WIRELESS_EXT > 12
/* List of Wireless Handlers (new API) */
static const struct iw_handler_def airo_handler_def;
#else /* WIRELESS_EXT > 12 */
/* More Wireless Extensions backward compatibility */
/* Part of iw_handler prototype we need (apart that we don't need it) */
struct iw_request_info {};
#endif /* WIRELESS_EXT > 12 */
#endif /* WIRELESS_EXT */
static const char version[] = "airo.c 0.6 (Ben Reed & Javier Achirica)";
struct airo_info;
static int get_dec_u16( char *buffer, int *start, int limit );
static void OUT4500( struct airo_info *, u16 register, u16 value );
static unsigned short IN4500( struct airo_info *, u16 register );
static u16 setup_card(struct airo_info*, u8 *mac);
static int enable_MAC( struct airo_info *ai, Resp *rsp );
static void disable_MAC(struct airo_info *ai);
static void enable_interrupts(struct airo_info*);
static void disable_interrupts(struct airo_info*);
static u16 issuecommand(struct airo_info*, Cmd *pCmd, Resp *pRsp);
static u16 sendcommand(struct airo_info *ai, Cmd *pCmd);
static void completecommand(struct airo_info *ai, Resp *pRsp);
static int bap_setup(struct airo_info*, u16 rid, u16 offset, int whichbap);
static int aux_bap_read(struct airo_info*, u16 *pu16Dst, int bytelen,
int whichbap);
static int fast_bap_read(struct airo_info*, u16 *pu16Dst, int bytelen,
int whichbap);
static int bap_write(struct airo_info*, const u16 *pu16Src, int bytelen,
int whichbap);
static int PC4500_accessrid(struct airo_info*, u16 rid, u16 accmd);
static int PC4500_readrid(struct airo_info*, u16 rid, void *pBuf, int len);
static int PC4500_writerid(struct airo_info*, u16 rid, const void
*pBuf, int len);
static int do_writerid( struct airo_info*, u16 rid, const void *rid_data,
int len );
static u16 transmit_allocate(struct airo_info*, int lenPayload, int raw);
static int transmit_802_3_packet(struct airo_info*, int len, char *pPacket);
static int transmit_802_11_packet(struct airo_info*, int len, char *pPacket);
static void airo_interrupt( int irq, void* dev_id, struct pt_regs
*regs);
static int airo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
#ifdef WIRELESS_EXT
struct iw_statistics *airo_get_wireless_stats (struct net_device *dev);
#endif /* WIRELESS_EXT */
#ifdef CISCO_EXT
static int readrids(struct net_device *dev, aironet_ioctl *comp);
static int writerids(struct net_device *dev, aironet_ioctl *comp);
int flashcard(struct net_device *dev, aironet_ioctl *comp);
#endif /* CISCO_EXT */
#ifdef MICSUPPORT
static void micinit(struct airo_info *ai, MICRid *micr);
static void micsetup(struct airo_info *ai);
static int encapsulate(struct airo_info *ai, etherHead *pPacket, MICBuffer *buffer, int len);
static int decapsulate(struct airo_info *ai, MICBuffer *mic, etherHead *pPacket, u16 payLen);
#endif
struct airo_info {
struct net_device_stats stats;
int open;
struct net_device *dev;
/* Note, we can have MAX_FIDS outstanding. FIDs are 16-bits, so we
use the high bit to mark wether it is in use. */
#define MAX_FIDS 6
int fids[MAX_FIDS];
int registered;
ConfigRid config;
int need_commit; // Need to set config
char keyindex; // Used with auto wep
char defindex; // Used with auto wep
struct timer_list timer;
struct proc_dir_entry *proc_entry;
struct airo_info *next;
spinlock_t aux_lock;
unsigned long flags;
#define FLAG_PROMISC IFF_PROMISC /* 0x100 - include/linux/if.h */
#define FLAG_RADIO_OFF 0x02 /* User disabling of MAC */
#define FLAG_RADIO_DOWN 0x08 /* ifup/ifdown disabling of MAC */
#define FLAG_LOCKED 2 /* 0x04 - use as a bit offset */
#define FLAG_FLASHING 0x10
#define FLAG_ADHOC 0x01 /* Needed by MIC */
#define FLAG_MIC_CAPABLE 0x20
#define FLAG_UPDATE_MULTI 0x40
#define FLAG_UPDATE_UNI 0x80
#define FLAG_802_11 0x200
int (*bap_read)(struct airo_info*, u16 *pu16Dst, int bytelen,
int whichbap);
unsigned short *flash;
tdsRssiEntry *rssi;
struct semaphore sem;
struct task_struct *task;
struct tq_struct promisc_task;
struct {
struct sk_buff *skb;
int fid;
struct tq_struct task;
} xmit, xmit11;
struct net_device *wifidev;
#ifdef WIRELESS_EXT
struct iw_statistics wstats; // wireless stats
unsigned long scan_timestamp; /* Time started to scan */
struct tq_struct event_task;
#ifdef WIRELESS_SPY
int spy_number;
u_char spy_address[IW_MAX_SPY][ETH_ALEN];
struct iw_quality spy_stat[IW_MAX_SPY];
#endif /* WIRELESS_SPY */
#endif /* WIRELESS_EXT */
/* MIC stuff */
mic_module mod[2];
mic_statistics micstats;
struct tq_struct mic_task;
};
static inline int bap_read(struct airo_info *ai, u16 *pu16Dst, int bytelen,
int whichbap) {
return ai->bap_read(ai, pu16Dst, bytelen, whichbap);
}
static int setup_proc_entry( struct net_device *dev,
struct airo_info *apriv );
static int takedown_proc_entry( struct net_device *dev,
struct airo_info *apriv );
#ifdef MICSUPPORT
#include "mic.h"
#endif
static int readBSSListRid(struct airo_info *ai, int first,
BSSListRid *list) {
int rc;
Cmd cmd;
Resp rsp;
if (first == 1) {
memset(&cmd, 0, sizeof(cmd));
cmd.cmd=CMD_LISTBSS;
if (down_interruptible(&ai->sem))
return -ERESTARTSYS;
issuecommand(ai, &cmd, &rsp);
up(&ai->sem);
/* Let the command take effect */
set_current_state (TASK_INTERRUPTIBLE);
ai->task = current;
schedule_timeout (3*HZ);
ai->task = NULL;
}
rc = PC4500_readrid(ai, first ? RID_BSSLISTFIRST : RID_BSSLISTNEXT,
list, sizeof(*list));
list->len = le16_to_cpu(list->len);
list->index = le16_to_cpu(list->index);
list->radioType = le16_to_cpu(list->radioType);
list->cap = le16_to_cpu(list->cap);
list->beaconInterval = le16_to_cpu(list->beaconInterval);
list->fh.dwell = le16_to_cpu(list->fh.dwell);
list->dsChannel = le16_to_cpu(list->dsChannel);
list->atimWindow = le16_to_cpu(list->atimWindow);
return rc;
}
static int readWepKeyRid(struct airo_info*ai, WepKeyRid *wkr, int temp) {
int rc = PC4500_readrid(ai, temp ? RID_WEP_TEMP : RID_WEP_PERM,
wkr, sizeof(*wkr));
wkr->len = le16_to_cpu(wkr->len);
wkr->kindex = le16_to_cpu(wkr->kindex);
wkr->klen = le16_to_cpu(wkr->klen);
return rc;
}
/* In the writeXXXRid routines we copy the rids so that we don't screwup
* the originals when we endian them... */
static int writeWepKeyRid(struct airo_info*ai, WepKeyRid *pwkr, int perm) {
int rc;
WepKeyRid wkr = *pwkr;
wkr.len = cpu_to_le16(wkr.len);
wkr.kindex = cpu_to_le16(wkr.kindex);
wkr.klen = cpu_to_le16(wkr.klen);
rc = PC4500_writerid(ai, RID_WEP_TEMP, &wkr, sizeof(wkr));
if (rc!=SUCCESS) printk(KERN_ERR "airo: WEP_TEMP set %xn", rc);
if (perm) {
rc = PC4500_writerid(ai, RID_WEP_PERM, &wkr, sizeof(wkr));
if (rc!=SUCCESS) {
printk(KERN_ERR "airo: WEP_PERM set %xn", rc);
}
}
return rc;
}
static int readSsidRid(struct airo_info*ai, SsidRid *ssidr) {
int i;
int rc = PC4500_readrid(ai, RID_SSID, ssidr, sizeof(*ssidr));
ssidr->len = le16_to_cpu(ssidr->len);
for(i = 0; i < 3; i++) {
ssidr->ssids[i].len = le16_to_cpu(ssidr->ssids[i].len);
}
return rc;
}
static int writeSsidRid(struct airo_info*ai, SsidRid *pssidr) {
int rc;
int i;
SsidRid ssidr = *pssidr;
ssidr.len = cpu_to_le16(ssidr.len);
for(i = 0; i < 3; i++) {
ssidr.ssids[i].len = cpu_to_le16(ssidr.ssids[i].len);
}
rc = PC4500_writerid(ai, RID_SSID, &ssidr, sizeof(ssidr));
return rc;
}
static int readConfigRid(struct airo_info*ai) {
int rc;
u16 *s;
ConfigRid cfg;
if (ai->config.len)
return SUCCESS;
rc = PC4500_readrid(ai, RID_ACTUALCONFIG, &cfg, sizeof(cfg));
if (rc != SUCCESS)
return rc;
for(s = &cfg.len; s <= &cfg.rtsThres; s++) *s = le16_to_cpu(*s);
for(s = &cfg.shortRetryLimit; s <= &cfg.radioType; s++)
*s = le16_to_cpu(*s);
for(s = &cfg.txPower; s <= &cfg.radioSpecific; s++)
*s = le16_to_cpu(*s);
for(s = &cfg.arlThreshold; s <= &cfg.autoWake; s++)
*s = le16_to_cpu(*s);
ai->config = cfg;
return SUCCESS;
}
static inline void checkThrottle(struct airo_info *ai) {
int i;
/* Old hardware had a limit on encryption speed */
if (ai->config.authType != AUTH_OPEN && maxencrypt) {
for(i=0; i<8; i++) {
if (ai->config.rates[i] > maxencrypt) {
ai->config.rates[i] = 0;
}
}
}
}
static int writeConfigRid(struct airo_info*ai) {
u16 *s;
ConfigRid cfgr;
if (!ai->need_commit)
return SUCCESS;
ai->need_commit = 0;
checkThrottle(ai);
if ((cfgr.opmode & 0xFF) == MODE_STA_IBSS)
ai->flags |= FLAG_ADHOC;
else
ai->flags &= ~FLAG_ADHOC;
cfgr = ai->config;
for(s = &cfgr.len; s <= &cfgr.rtsThres; s++) *s = cpu_to_le16(*s);
for(s = &cfgr.shortRetryLimit; s <= &cfgr.radioType; s++)
*s = cpu_to_le16(*s);
for(s = &cfgr.txPower; s <= &cfgr.radioSpecific; s++)
*s = cpu_to_le16(*s);
for(s = &cfgr.arlThreshold; s <= &cfgr.autoWake; s++)
*s = cpu_to_le16(*s);
return PC4500_writerid( ai, RID_CONFIG, &cfgr, sizeof(cfgr));
}
static int readStatusRid(struct airo_info*ai, StatusRid *statr) {
int rc = PC4500_readrid(ai, RID_STATUS, statr, sizeof(*statr));
u16 *s;
statr->len = le16_to_cpu(statr->len);
for(s = &statr->mode; s <= &statr->SSIDlen; s++) *s = le16_to_cpu(*s);
for(s = &statr->beaconPeriod; s <= &statr->_reserved[9]; s++)
*s = le16_to_cpu(*s);
return rc;
}
static int readAPListRid(struct airo_info*ai, APListRid *aplr) {
int rc = PC4500_readrid(ai, RID_APLIST, aplr, sizeof(*aplr));
aplr->len = le16_to_cpu(aplr->len);
return rc;
}
static int writeAPListRid(struct airo_info*ai, APListRid *aplr) {
int rc;
aplr->len = cpu_to_le16(aplr->len);
rc = PC4500_writerid(ai, RID_APLIST, aplr, sizeof(*aplr));
return rc;
}
static int readCapabilityRid(struct airo_info*ai, CapabilityRid *capr) {
int rc = PC4500_readrid(ai, RID_CAPABILITIES, capr, sizeof(*capr));
u16 *s;
capr->len = le16_to_cpu(capr->len);
capr->prodNum = le16_to_cpu(capr->prodNum);
capr->radioType = le16_to_cpu(capr->radioType);
capr->country = le16_to_cpu(capr->country);
for(s = &capr->txPowerLevels[0]; s <= &capr->requiredHard; s++)
*s = le16_to_cpu(*s);
return rc;
}
static int readStatsRid(struct airo_info*ai, StatsRid *sr, int rid) {
int rc = PC4500_readrid(ai, rid, sr, sizeof(*sr));
u32 *i;
sr->len = le16_to_cpu(sr->len);
for(i = &sr->vals[0]; i <= &sr->vals[99]; i++) *i = le32_to_cpu(*i);
return rc;
}
static int airo_open(struct net_device *dev) {
struct airo_info *info = dev->priv;
Resp rsp;
if (info->flags & FLAG_FLASHING)
return -EIO;
/* Make sure the card is configured.
* Wireless Extensions may postpone config changes until the card
* is open (to pipeline changes and speed-up card setup). If
* those changes are not yet commited, do it now - Jean II */
if(info->need_commit) {
disable_MAC(info);
writeConfigRid(info);
}
if (info->wifidev != dev) {
/* Power on the MAC controller (which may have been disabled) */
info->flags &= ~FLAG_RADIO_DOWN;
enable_interrupts(info);
}
enable_MAC(info, &rsp);
netif_start_queue(dev);
return 0;
}
static void get_tx_error(struct airo_info *ai, u32 fid)
{
u16 status;
if (bap_setup(ai, ai->fids[fid] & 0xffff, 4, BAP0) == SUCCESS) {
bap_read(ai, &status, 2, BAP0);
if (le16_to_cpu(status) & 2) /* Too many retries */
ai->stats.tx_aborted_errors++;
if (le16_to_cpu(status) & 4) /* Transmit lifetime exceeded */
ai->stats.tx_heartbeat_errors++;
if (le16_to_cpu(status) & 8) /* Aid fail */
{ }
if (le16_to_cpu(status) & 0x10) /* MAC disabled */
ai->stats.tx_carrier_errors++;
if (le16_to_cpu(status) & 0x20) /* Association lost */
{ }
#if WIRELESS_EXT > 13
/* We produce a TXDROP event only for retry or lifetime
* exceeded, because that's the only status that really mean
* that this particular node went away.
* Other errors means that *we* screwed up. - Jean II */
if ((le16_to_cpu(status) & 2) ||
(le16_to_cpu(status) & 4)) {
union iwreq_data wrqu;
char junk[0x18];
/* Faster to skip over useless data than to do
* another bap_setup(). We are at offset 0x6 and
* need to go to 0x18 and read 6 bytes - Jean II */
bap_read(ai, (u16 *) junk, 0x18, BAP0);
/* Copy 802.11 dest address.
* We use the 802.11 header because the frame may
* not be 802.3 or may be mangled...
* In Ad-Hoc mode, it will be the node address.
* In managed mode, it will be most likely the AP addr
* User space will figure out how to convert it to
* whatever it needs (IP address or else).
* - Jean II */
memcpy(wrqu.addr.sa_data, junk + 0x12, ETH_ALEN);
wrqu.addr.sa_family = ARPHRD_ETHER;
/* Send event to user space */
wireless_send_event(ai->dev, IWEVTXDROP, &wrqu, NULL);
}
#endif /* WIRELESS_EXT > 13 */
}
}
static void airo_do_xmit(struct net_device *dev) {
u16 status;
int i;
struct airo_info *priv = dev->priv;
struct sk_buff *skb = priv->xmit.skb;
int fid = priv->xmit.fid;
u32 *fids = priv->fids;
if (down_trylock(&priv->sem) != 0) {
netif_stop_queue(dev);
priv->xmit.task.routine = (void (*)(void *))airo_do_xmit;
priv->xmit.task.data = (void *)dev;
schedule_task(&priv->xmit.task);
return;
}
status = transmit_802_3_packet (priv, fids[fid], skb->data);
up(&priv->sem);
i = 0;
if ( status == SUCCESS ) {
dev->trans_start = jiffies;
for (; i < MAX_FIDS / 2 && (priv->fids[i] & 0xffff0000); i++);
} else {
priv->fids[fid] &= 0xffff;
priv->stats.tx_window_errors++;
}
if (i < MAX_FIDS / 2)
netif_wake_queue(dev);
else
netif_stop_queue(dev);
dev_kfree_skb(skb);
}
static int airo_start_xmit(struct sk_buff *skb, struct net_device *dev) {
s16 len;
int i;
struct airo_info *priv = dev->priv;
u32 *fids = priv->fids;
if ( skb == NULL ) {
printk( KERN_ERR "airo: skb == NULL!!!n" );
return 0;
}
/* Find a vacant FID */
for( i = 0; i < MAX_FIDS / 2 && (fids[i] & 0xffff0000); i++ );
if ( i == MAX_FIDS / 2 ) {
priv->stats.tx_fifo_errors++;
dev_kfree_skb(skb);
} else {
/* check min length*/
len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
/* Mark fid as used & save length for later */
fids[i] |= (len << 16);
priv->xmit.skb = skb;
priv->xmit.fid = i;
airo_do_xmit(dev);
}
return 0;
}
static void airo_do_xmit11(struct net_device *dev) {
u16 status;
int i;
struct airo_info *priv = dev->priv;
struct sk_buff *skb = priv->xmit11.skb;
int fid = priv->xmit11.fid;
u32 *fids = priv->fids;
if (down_trylock(&priv->sem) != 0) {
netif_stop_queue(dev);
priv->xmit11.task.routine = (void (*)(void *))airo_do_xmit11;
priv->xmit11.task.data = (void *)dev;
schedule_task(&priv->xmit11.task);
return;
}
status = transmit_802_11_packet (priv, fids[fid], skb->data);
up(&priv->sem);
i = MAX_FIDS / 2;
if ( status == SUCCESS ) {
dev->trans_start = jiffies;
for (; i < MAX_FIDS && (priv->fids[i] & 0xffff0000); i++);
} else {
priv->fids[fid] &= 0xffff;
priv->stats.tx_window_errors++;
}
if (i < MAX_FIDS)
netif_wake_queue(dev);
else
netif_stop_queue(dev);
dev_kfree_skb(skb);
}
static int airo_start_xmit11(struct sk_buff *skb, struct net_device *dev) {
s16 len;
int i;
struct airo_info *priv = dev->priv;
u32 *fids = priv->fids;
if ( skb == NULL ) {
printk( KERN_ERR "airo: skb == NULL!!!n" );
return 0;
}
/* Find a vacant FID */
for( i = MAX_FIDS / 2; i < MAX_FIDS && (fids[i] & 0xffff0000); i++ );
if ( i == MAX_FIDS ) {
priv->stats.tx_fifo_errors++;
dev_kfree_skb(skb);
} else {
/* check min length*/
len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
/* Mark fid as used & save length for later */
fids[i] |= (len << 16);
priv->xmit11.skb = skb;
priv->xmit11.fid = i;
airo_do_xmit11(dev);
}
return 0;
}
struct net_device_stats *airo_get_stats(struct net_device *dev)
{
struct airo_info *local = dev->priv;
StatsRid stats_rid;
u32 *vals = stats_rid.vals;
/* Get stats out of the card */
readStatsRid(local, &stats_rid, RID_STATS);
local->stats.rx_packets = vals[43] + vals[44] + vals[45];
local->stats.tx_packets = vals[39] + vals[40] + vals[41];
local->stats.rx_bytes = vals[92];
local->stats.tx_bytes = vals[91];
local->stats.rx_errors = vals[0] + vals[2] + vals[3] + vals[4];
local->stats.tx_errors = vals[42] + local->stats.tx_fifo_errors;
local->stats.multicast = vals[43];
local->stats.collisions = vals[89];
/* detailed rx_errors: */
local->stats.rx_length_errors = vals[3];
local->stats.rx_crc_errors = vals[4];
local->stats.rx_frame_errors = vals[2];
local->stats.rx_fifo_errors = vals[0];
return &local->stats;
}
static void airo_end_promisc(struct airo_info *ai) {
Resp rsp;
if ((IN4500(ai, EVSTAT) & EV_CMD) != 0) {
completecommand(ai, &rsp);
up(&ai->sem);
} else {
ai->promisc_task.routine = (void (*)(void *))airo_end_promisc;
ai->promisc_task.data = (void *)ai;
schedule_task(&ai->promisc_task);
}
}
static void airo_set_promisc(struct airo_info *ai) {
Cmd cmd;
if (down_trylock(&ai->sem) == 0) {
memset(&cmd, 0, sizeof(cmd));
cmd.cmd=CMD_SETMODE;
cmd.parm0=(ai->flags&IFF_PROMISC) ? PROMISC : NOPROMISC;
sendcommand(ai, &cmd);
airo_end_promisc(ai);
} else {
ai->promisc_task.routine = (void (*)(void *))airo_set_promisc;
ai->promisc_task.data = (void *)ai;
schedule_task(&ai->promisc_task);
}
}
static void airo_set_multicast_list(struct net_device *dev) {
struct airo_info *ai = dev->priv;
if ((dev->flags ^ ai->flags) & IFF_PROMISC) {
ai->flags ^= IFF_PROMISC;
airo_set_promisc(ai);
}
if ((dev->flags&IFF_ALLMULTI)||dev->mc_count>0) {
/* Turn on multicast. (Should be already setup...) */
}
}
static int airo_set_mac_address(struct net_device *dev, void *p)
{
struct airo_info *ai = dev->priv;
struct sockaddr *addr = p;
Resp rsp;
memcpy (ai->config.macAddr, addr->sa_data, dev->addr_len);
ai->need_commit = 1;
disable_MAC(ai);
writeConfigRid (ai);
enable_MAC(ai, &rsp);
memcpy (ai->dev->dev_addr, addr->sa_data, dev->addr_len);
if (ai->wifidev)
memcpy (ai->wifidev->dev_addr, addr->sa_data, dev->addr_len);
return 0;
}
static int airo_change_mtu(struct net_device *dev, int new_mtu)
{
if ((new_mtu < 68) || (new_mtu > 2400))
return -EINVAL;
dev->mtu = new_mtu;
return 0;
}
static int airo_close(struct net_device *dev) {
struct airo_info *ai = dev->priv;
netif_stop_queue(dev);
if (ai->wifidev != dev) {
#ifdef POWER_ON_DOWN
/* Shut power to the card. The idea is that the user can save
* power when he doesn't need the card with "ifconfig down".
* That's the method that is most friendly towards the network
* stack (i.e. the network stack won't try to broadcast
* anything on the interface and routes are gone. Jean II */
ai->flags |= FLAG_RADIO_DOWN;
disable_MAC(ai);
#endif
disable_interrupts( ai );
}
return 0;
}
static void del_airo_dev( struct net_device *dev );
void stop_airo_card( struct net_device *dev, int freeres )
{
struct airo_info *ai = dev->priv;
flush_scheduled_tasks();
if (ai->flash)
kfree(ai->flash);
if (ai->rssi)
kfree(ai->rssi);
takedown_proc_entry( dev, ai );
if (ai->registered) {
unregister_netdev( dev );
if (ai->wifidev) {
unregister_netdev(ai->wifidev);
kfree(ai->wifidev);
ai->wifidev = 0;
}
ai->registered = 0;
}
disable_interrupts(ai);
free_irq( dev->irq, dev );
if (auto_wep) del_timer_sync(&ai->timer);
if (freeres) {
/* PCMCIA frees this stuff, so only for PCI and ISA */
release_region( dev->base_addr, 64 );
}
del_airo_dev( dev );
kfree( dev );
}
EXPORT_SYMBOL(stop_airo_card);
static int add_airo_dev( struct net_device *dev );
int wll_header_parse(struct sk_buff *skb, unsigned char *haddr)
{
memcpy(haddr, skb->mac.raw + 10, ETH_ALEN);
return ETH_ALEN;
}
static void wifi_setup(struct net_device *dev, struct net_device *ethdev)
{
struct airo_info *ai = ethdev->priv;
dev->priv = ai;
dev->hard_header = 0;
dev->rebuild_header = 0;
dev->hard_header_cache = 0;
dev->header_cache_update= 0;
dev->hard_header_parse = wll_header_parse;
dev->hard_start_xmit = &airo_start_xmit11;
dev->get_stats = &airo_get_stats;
dev->set_mac_address = &airo_set_mac_address;
dev->do_ioctl = &airo_ioctl;
#ifdef WIRELESS_EXT
dev->get_wireless_stats = airo_get_wireless_stats;
#if WIRELESS_EXT > 12
dev->wireless_handlers = (struct iw_handler_def *)&airo_handler_def;
#endif /* WIRELESS_EXT > 12 */
#endif /* WIRELESS_EXT */
dev->change_mtu = &airo_change_mtu;
dev->open = &airo_open;
dev->stop = &airo_close;
dev->irq = ethdev->irq;
dev->base_addr = ethdev->base_addr;
dev->type = ARPHRD_IEEE80211;
dev->hard_header_len = ETH_HLEN;
dev->mtu = 2312;
dev->addr_len = ETH_ALEN;
memcpy(dev->dev_addr, ethdev->dev_addr, dev->addr_len);
dev->tx_queue_len = 100;
memset(dev->broadcast,0xFF, ETH_ALEN);
dev->flags = IFF_BROADCAST|IFF_MULTICAST;
}
static struct net_device *init_wifidev(struct airo_info *ai,
struct net_device *ethdev)
{
int err;
struct net_device *dev = (struct net_device*)kmalloc(sizeof *dev,GFP_KERNEL);
if (!dev) return 0;
memset(dev, 0, sizeof(*dev));
strcpy(dev->name, "wifi%d");
dev->priv = ai;
wifi_setup(dev, ethdev);
err = register_netdev(dev);
if (err<0) {
kfree(dev);
return 0;
}
return dev;
}
struct net_device *init_airo_card( unsigned short irq, int port, int is_pcmcia )
{
struct net_device *dev;
struct airo_info *ai;
int i, rc;
/* Create the network device object. */
dev = alloc_etherdev(sizeof(*ai));
if (!dev) {
printk(KERN_ERR "airo: Couldn't alloc_etherdevn");
return NULL;
}
if (dev_alloc_name(dev, dev->name) < 0) {
printk(KERN_ERR "airo: Couldn't get name!n");
goto err_out_free;
}
ai = dev->priv;
ai->wifidev = 0;
ai->registered = 0;
ai->dev = dev;
ai->aux_lock = SPIN_LOCK_UNLOCKED;
sema_init(&ai->sem, 1);
ai->need_commit = 0;
ai->config.len = 0;
rc = add_airo_dev( dev );
if (rc)
goto err_out_free;
/* The Airo-specific entries in the device structure. */
dev->hard_start_xmit = &airo_start_xmit;
dev->get_stats = &airo_get_stats;
dev->set_multicast_list = &airo_set_multicast_list;
dev->set_mac_address = &airo_set_mac_address;
dev->do_ioctl = &airo_ioctl;
#ifdef WIRELESS_EXT
dev->get_wireless_stats = airo_get_wireless_stats;
#if WIRELESS_EXT > 12
dev->wireless_handlers = (struct iw_handler_def *)&airo_handler_def;
#endif /* WIRELESS_EXT > 12 */
#endif /* WIRELESS_EXT */
dev->change_mtu = &airo_change_mtu;
dev->open = &airo_open;
dev->stop = &airo_close;
dev->irq = irq;
dev->base_addr = port;
rc = request_irq( dev->irq, airo_interrupt, SA_SHIRQ, dev->name, dev );
if (rc) {
printk(KERN_ERR "airo: register interrupt %d failed, rc %dn", irq, rc );
goto err_out_unlink;
}
if (!is_pcmcia) {
if (!request_region( dev->base_addr, 64, dev->name )) {
rc = -EBUSY;
goto err_out_irq;
}
}
if (probe) {
if ( setup_card( ai, dev->dev_addr ) != SUCCESS ) {
printk( KERN_ERR "airo: MAC could not be enabledn" );
rc = -EIO;
goto err_out_res;
}
} else {
ai->bap_read = fast_bap_read;
ai->flags |= FLAG_FLASHING;
}
rc = register_netdev(dev);
if (rc)
goto err_out_res;
ai->wifidev = init_wifidev(ai, dev);
ai->registered = 1;
printk( KERN_INFO "airo: MAC enabled %s %x:%x:%x:%x:%x:%xn",
dev->name,
dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5] );
/* Allocate the transmit buffers */
if (probe)
for( i = 0; i < MAX_FIDS; i++ )
ai->fids[i] = transmit_allocate(ai,2312,i>=MAX_FIDS/2);
setup_proc_entry( dev, dev->priv ); /* XXX check for failure */
netif_start_queue(dev);
SET_MODULE_OWNER(dev);
return dev;
err_out_res:
if (!is_pcmcia)
release_region( dev->base_addr, 64 );
err_out_irq:
free_irq(dev->irq, dev);
err_out_unlink:
del_airo_dev(dev);
err_out_free:
kfree(dev);
return NULL;
}
EXPORT_SYMBOL(init_airo_card);
static int waitbusy (struct airo_info *ai) {
int delay = 0;
while ((IN4500 (ai, COMMAND) & COMMAND_BUSY) & (delay < 10000)) {
udelay (10);
if (++delay % 20)
OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
}
return delay < 10000;
}
int reset_airo_card( struct net_device *dev ) {
int i;
struct airo_info *ai = dev->priv;
waitbusy (ai);
OUT4500(ai,COMMAND,CMD_SOFTRESET);
set_current_state (TASK_UNINTERRUPTIBLE);
schedule_timeout (HZ/5);
waitbusy (ai);
set_current_state (TASK_UNINTERRUPTIBLE);
schedule_timeout (HZ/5);
if ( setup_card(ai, dev->dev_addr ) != SUCCESS ) {
printk( KERN_ERR "airo: MAC could not be enabledn" );
return -1;
} else {
printk( KERN_INFO "airo: MAC enabled %s %x:%x:%x:%x:%x:%xn",
dev->name,
dev->dev_addr[0],
dev->dev_addr[1],
dev->dev_addr[2],
dev->dev_addr[3],
dev->dev_addr[4],
dev->dev_addr[5]
);
/* Allocate the transmit buffers */
for( i = 0; i < MAX_FIDS; i++ )
ai->fids[i] = transmit_allocate(ai,2312,i>=MAX_FIDS/2);
}
enable_interrupts( ai );
netif_wake_queue(dev);
return 0;
}
EXPORT_SYMBOL(reset_airo_card);
#if WIRELESS_EXT > 13
static void airo_send_event(struct net_device *dev) {
struct airo_info *ai = dev->priv;
union iwreq_data wrqu;
StatusRid status_rid;
if (down_trylock(&ai->sem) == 0) {
__set_bit(FLAG_LOCKED, &ai->flags);
PC4500_readrid(ai, RID_STATUS, &status_rid, sizeof(status_rid));
clear_bit(FLAG_LOCKED, &ai->flags);
up(&ai->sem);
wrqu.data.length = 0;
wrqu.data.flags = 0;
memcpy(wrqu.ap_addr.sa_data, status_rid.bssid[0], ETH_ALEN);
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
/* Send event to user space */
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
} else {
ai->event_task.routine = (void (*)(void *))airo_send_event;
ai->event_task.data = (void *)dev;
schedule_task(&ai->event_task);
}
}
#endif
static void airo_read_mic(struct airo_info *ai) {
MICRid mic_rid;
if (down_trylock(&ai->sem) == 0) {
__set_bit(FLAG_LOCKED, &ai->flags);
PC4500_readrid(ai, RID_MIC, &mic_rid, sizeof(mic_rid));
clear_bit(FLAG_LOCKED, &ai->flags);
up(&ai->sem);
#ifdef MICSUPPORT
micinit (ai, &mic_rid);
#endif
} else {
ai->mic_task.routine = (void (*)(void *))airo_read_mic;
ai->mic_task.data = (void *)ai;
schedule_task(&ai->mic_task);
}
}
static void airo_interrupt ( int irq, void* dev_id, struct pt_regs *regs) {
struct net_device *dev = (struct net_device *)dev_id;
u16 status;
u16 fid;
struct airo_info *apriv = dev->priv;
u16 savedInterrupts = 0;
if (!netif_device_present(dev))
return;
for (;;) {
status = IN4500( apriv, EVSTAT );
if ( !(status & STATUS_INTS) || status == 0xffff ) break;
if ( status & EV_AWAKE ) {
OUT4500( apriv, EVACK, EV_AWAKE );
OUT4500( apriv, EVACK, EV_AWAKE );
}
if (!savedInterrupts) {
savedInterrupts = IN4500( apriv, EVINTEN );
OUT4500( apriv, EVINTEN, 0 );
}
if ( status & EV_MIC ) {
OUT4500( apriv, EVACK, EV_MIC );
airo_read_mic( apriv );
}
if ( status & EV_LINK ) {
#if WIRELESS_EXT > 13
union iwreq_data wrqu;
#endif /* WIRELESS_EXT > 13 */
/* The link status has changed, if you want to put a
monitor hook in, do it here. (Remember that
interrupts are still disabled!)
*/
u16 newStatus = IN4500(apriv, LINKSTAT);
OUT4500( apriv, EVACK, EV_LINK);
/* Here is what newStatus means: */
#define NOBEACON 0x8000 /* Loss of sync - missed beacons */
#define MAXRETRIES 0x8001 /* Loss of sync - max retries */
#define MAXARL 0x8002 /* Loss of sync - average retry level exceeded*/
#define FORCELOSS 0x8003 /* Loss of sync - host request */
#define TSFSYNC 0x8004 /* Loss of sync - TSF synchronization */
#define DEAUTH 0x8100 /* Deauthentication (low byte is reason code) */
#define DISASS 0x8200 /* Disassociation (low byte is reason code) */
#define ASSFAIL 0x8400 /* Association failure (low byte is reason
code) */
#define AUTHFAIL 0x0300 /* Authentication failure (low byte is reason
code) */
#define ASSOCIATED 0x0400 /* Assocatied */
#define RC_RESERVED 0 /* Reserved return code */
#define RC_NOREASON 1 /* Unspecified reason */
#define RC_AUTHINV 2 /* Previous authentication invalid */
#define RC_DEAUTH 3 /* Deauthenticated because sending station is
leaving */
#define RC_NOACT 4 /* Disassociated due to inactivity */
#define RC_MAXLOAD 5 /* Disassociated because AP is unable to handle
all currently associated stations */
#define RC_BADCLASS2 6 /* Class 2 frame received from
non-Authenticated station */
#define RC_BADCLASS3 7 /* Class 3 frame received from
non-Associated station */
#define RC_STATLEAVE 8 /* Disassociated because sending station is
leaving BSS */
#define RC_NOAUTH 9 /* Station requesting (Re)Association is not
Authenticated with the responding station */
if (newStatus != ASSOCIATED) {
if (auto_wep && !timer_pending(&apriv->timer)) {
apriv->timer.expires = RUN_AT(HZ*3);
add_timer(&apriv->timer);
}
} else {
struct task_struct *task = apriv->task;
if (task)
wake_up_process (task);
apriv->flags|=FLAG_UPDATE_UNI|FLAG_UPDATE_MULTI;
}
#if WIRELESS_EXT > 13
/* Question : is ASSOCIATED the only status
* that is valid ? We want to catch handover
* and reassociations as valid status
* Jean II */
if(newStatus == ASSOCIATED) {
if (apriv->scan_timestamp) {
/* Send an empty event to user space.
* We don't send the received data on
* the event because it would require
* us to do complex transcoding, and
* we want to minimise the work done in
* the irq handler. Use a request to
* extract the data - Jean II */
wrqu.data.length = 0;
wrqu.data.flags = 0;
wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
apriv->scan_timestamp = 0;
}
airo_send_event(dev);
} else {
memset(wrqu.ap_addr.sa_data, '', ETH_ALEN);
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
/* Send event to user space */
wireless_send_event(dev, SIOCGIWAP, &wrqu,NULL);
}
#endif /* WIRELESS_EXT > 13 */
}
/* Check to see if there is something to receive */
if ( status & EV_RX ) {
struct sk_buff *skb = NULL;
u16 fc, len, hdrlen = 0;
#pragma pack(1)
struct {
u16 status, len;
u8 rssi[2];
u8 rate;
u8 freq;
u16 tmp[4];
} hdr;
#pragma pack()
u16 gap;
u16 tmpbuf[4];
u16 *buffer;
fid = IN4500( apriv, RXFID );
/* Get the packet length */
if (apriv->flags & FLAG_802_11) {
bap_setup (apriv, fid, 4, BAP0);
bap_read (apriv, (u16*)&hdr, sizeof(hdr), BAP0);
/* Bad CRC. Ignore packet */
if (le16_to_cpu(hdr.status) & 2)
hdr.len = 0;
if (apriv->wifidev == NULL)
hdr.len = 0;
} else {
bap_setup (apriv, fid, 0x36, BAP0);
bap_read (apriv, (u16*)&hdr.len, 2, BAP0);
}
len = le16_to_cpu(hdr.len);
if (len > 2312) {
printk( KERN_ERR "airo: Bad size %dn", len );
len = 0;
}
if (len) {
if (apriv->flags & FLAG_802_11) {
bap_read (apriv, (u16*)&fc, sizeof(fc), BAP0);
fc = le16_to_cpu(fc);
switch (fc & 0xc) {
case 4:
if ((fc & 0xe0) == 0xc0)
hdrlen = 10;
else
hdrlen = 16;
break;
case 8:
if ((fc&0x300)==0x300){
hdrlen = 30;
break;
}
default:
hdrlen = 24;
}
} else
hdrlen = ETH_ALEN * 2;
skb = dev_alloc_skb( len + hdrlen + 2 );
if ( !skb ) {
apriv->stats.rx_dropped++;
len = 0;
}
}
if (len) {
buffer = (u16*)skb_put (skb, len + hdrlen);
if (apriv->flags & FLAG_802_11) {
buffer[0] = fc;
bap_read (apriv, buffer + 1, hdrlen - 2, BAP0);
if (hdrlen == 24)
bap_read (apriv, tmpbuf, 6, BAP0);
bap_read (apriv, &gap, sizeof(gap), BAP0);
gap = le16_to_cpu(gap);
if (gap) {
if (gap <= 8)
bap_read (apriv, tmpbuf, gap, BAP0);
else
printk(KERN_ERR "airo: gaplen too big. Problems will follow...n");
}
bap_read (apriv, buffer + hdrlen/2, len, BAP0);
} else {
MICBuffer micbuf;
bap_read (apriv, buffer, ETH_ALEN*2, BAP0);
if (apriv->micstats.enabled) {
bap_read (apriv,(u16*)&micbuf,sizeof(micbuf),BAP0);
if (ntohs(micbuf.typelen) > 0x05DC)
bap_setup (apriv, fid, 0x44, BAP0);
else {
len -= sizeof(micbuf);
if (len < 48)
len = 48;
skb_trim (skb, len + hdrlen);
}
}
bap_read(apriv,buffer+ETH_ALEN,len,BAP0);
#ifdef MICSUPPORT
if (decapsulate(apriv,&micbuf,(etherHead*)buffer,len)) {
dev_kfree_skb_irq (skb);
len = 0;
}
#endif
}
}
if (len) {
#ifdef WIRELESS_SPY
if (apriv->spy_number > 0) {
int i;
char *sa;
sa = (char*)buffer + ((apriv->flags & FLAG_802_11) ? 10 : 6);
for (i=0; i<apriv->spy_number; i++)
if (!memcmp(sa,apriv->spy_address[i],ETH_ALEN))
{
if (!(apriv->flags & FLAG_802_11)) {
bap_setup (apriv, fid, 8, BAP0);
bap_read (apriv, (u16*)hdr.rssi, 2, BAP0);
}
apriv->spy_stat[i].qual = hdr.rssi[0];
if (apriv->rssi)
apriv->spy_stat[i].level = 0x100 - apriv->rssi[hdr.rssi[1]].rssidBm;
else
apriv->spy_stat[i].level = (hdr.rssi[1] + 321) / 2;
apriv->spy_stat[i].noise = 0;
apriv->spy_stat[i].updated = 3;
break;
}
}
#endif /* WIRELESS_SPY */
OUT4500( apriv, EVACK, EV_RX);
if (apriv->flags & FLAG_802_11) {
skb->mac.raw = skb->data;
skb->pkt_type = PACKET_OTHERHOST;
skb->dev = apriv->wifidev;
skb->protocol = htons(ETH_P_802_2);
} else {
skb->dev = dev;
skb->protocol = eth_type_trans(skb,dev);
}
skb->dev->last_rx = jiffies;
skb->ip_summed = CHECKSUM_NONE;
netif_rx( skb );
} else
OUT4500( apriv, EVACK, EV_RX);
}
/* Check to see if a packet has been transmitted */
if ( status & ( EV_TX|EV_TXEXC ) ) {
int i;
int len = 0;
int index = -1;
fid = IN4500(apriv, TXCOMPLFID);
for( i = 0; i < MAX_FIDS; i++ ) {
if ( ( apriv->fids[i] & 0xffff ) == fid ) {
len = apriv->fids[i] >> 16;
index = i;
/* Set up to be used again */
apriv->fids[i] &= 0xffff;
}
}
if (index != -1) {
netif_wake_queue(dev);
if (status & EV_TXEXC)
get_tx_error(apriv, index);
}
OUT4500( apriv, EVACK, status & (EV_TX | EV_TXEXC));
if (index==-1) {
printk( KERN_ERR "airo: Unallocated FID was used to xmitn" );
}
}
if ( status & ~STATUS_INTS & ~IGNORE_INTS )
printk( KERN_WARNING "airo: Got weird status %xn",
status & ~STATUS_INTS & ~IGNORE_INTS );
}
if (savedInterrupts)
OUT4500( apriv, EVINTEN, savedInterrupts );
/* done.. */
return;
}
/*
* Routines to talk to the card
*/
/*
* This was originally written for the 4500, hence the name
* NOTE: If use with 8bit mode and SMP bad things will happen!
* Why would some one do 8 bit IO in an SMP machine?!?
*/
static void OUT4500( struct airo_info *ai, u16 reg, u16 val ) {
if ( !do8bitIO )
outw( val, ai->dev->base_addr + reg );
else {
outb( val & 0xff, ai->dev->base_addr + reg );
outb( val >> 8, ai->dev->base_addr + reg + 1 );
}
}
static u16 IN4500( struct airo_info *ai, u16 reg ) {
unsigned short rc;
if ( !do8bitIO )
rc = inw( ai->dev->base_addr + reg );
else {
rc = inb( ai->dev->base_addr + reg );
rc += ((int)inb( ai->dev->base_addr + reg + 1 )) << 8;
}
return rc;
}
static int enable_MAC( struct airo_info *ai, Resp *rsp ) {
int rc;
Cmd cmd;
/* FLAG_RADIO_OFF : Radio disabled via /proc or Wireless Extensions
* FLAG_RADIO_DOWN : Radio disabled via "ifconfig ethX down"
* Note : we could try to use !netif_running(dev) in enable_MAC()
* instead of this flag, but I don't trust it *within* the
* open/close functions, and testing both flags together is
* "cheaper" - Jean II */
if (ai->flags & (FLAG_RADIO_OFF|FLAG_RADIO_DOWN)) return SUCCESS;
memset(&cmd, 0, sizeof(cmd));
cmd.cmd = MAC_ENABLE;
if (test_bit(FLAG_LOCKED, &ai->flags) != 0)
return issuecommand(ai, &cmd, rsp);
if (down_interruptible(&ai->sem))
return -ERESTARTSYS;
rc = issuecommand(ai, &cmd, rsp);
up(&ai->sem);
return rc;
}
static void disable_MAC( struct airo_info *ai ) {
Cmd cmd;
Resp rsp;
memset(&cmd, 0, sizeof(cmd));
cmd.cmd = MAC_DISABLE; // disable in case already enabled
if (test_bit(FLAG_LOCKED, &ai->flags) != 0) {
issuecommand(ai, &cmd, &rsp);
return;
}
if (down_interruptible(&ai->sem))
return;
issuecommand(ai, &cmd, &rsp);
up(&ai->sem);
}
static void enable_interrupts( struct airo_info *ai ) {
/* Reset the status register */
u16 status = IN4500( ai, EVSTAT );
OUT4500( ai, EVACK, status );
/* Enable the interrupts */
OUT4500( ai, EVINTEN, STATUS_INTS );
/* Note there is a race condition between the last two lines that
I dont know how to get rid of right now... */
}
static void disable_interrupts( struct airo_info *ai ) {
OUT4500( ai, EVINTEN, 0 );
}
static u16 setup_card(struct airo_info *ai, u8 *mac)
{
Cmd cmd;
Resp rsp;
int status;
int i;
SsidRid mySsid;
u16 lastindex;
WepKeyRid wkr;
int rc;
memset( &mySsid, 0, sizeof( mySsid ) );
if (ai->flash) {
kfree (ai->flash);
ai->flash = NULL;
}
/* The NOP is the first step in getting the card going */
cmd.cmd = NOP;
cmd.parm0 = cmd.parm1 = cmd.parm2 = 0;
if (down_interruptible(&ai->sem))
return ERROR;
if ( issuecommand( ai, &cmd, &rsp ) != SUCCESS ) {
up(&ai->sem);
return ERROR;
}
memset(&cmd, 0, sizeof(cmd));
cmd.cmd = MAC_DISABLE; // disable in case already enabled
if ( issuecommand( ai, &cmd, &rsp ) != SUCCESS ) {
up(&ai->sem);
return ERROR;
}
// Let's figure out if we need to use the AUX port
cmd.cmd = CMD_ENABLEAUX;
if (issuecommand(ai, &cmd, &rsp) != SUCCESS) {
up(&ai->sem);
printk(KERN_ERR "airo: Error checking for AUX portn");
return ERROR;
}
if (!aux_bap || rsp.status & 0xff00) {
ai->bap_read = fast_bap_read;
printk(KERN_DEBUG "airo: Doing fast bap_readsn");
} else {
ai->bap_read = aux_bap_read;
printk(KERN_DEBUG "airo: Doing AUX bap_readsn");
}
up(&ai->sem);
if (ai->config.len == 0) {
tdsRssiRid rssi_rid;
CapabilityRid cap_rid;
// general configuration (read/modify/write)
status = readConfigRid(ai);
if ( status != SUCCESS ) return ERROR;
status = readCapabilityRid(ai, &cap_rid);
if ( status != SUCCESS ) return ERROR;
status = PC4500_readrid(ai,RID_RSSI,&rssi_rid,sizeof(rssi_rid));
if ( status == SUCCESS ) {
if (ai->rssi || (ai->rssi = kmalloc(512, GFP_KERNEL)) != NULL)
memcpy(ai->rssi, (u8*)&rssi_rid + 2, 512);
}
else {
if (ai->rssi) {
kfree(ai->rssi);
ai->rssi = NULL;
}
if (cap_rid.softCap & 8)
ai->config.rmode |= RXMODE_NORMALIZED_RSSI;
else
printk(KERN_WARNING "airo: unknown received signal level scalen");
}
ai->config.opmode = adhoc ? MODE_STA_IBSS : MODE_STA_ESS;
#ifdef MICSUPPORT
if ((cap_rid.len==sizeof(cap_rid)) && (cap_rid.extSoftCap&1)) {
ai->config.opmode |= MODE_MIC;
ai->flags |= FLAG_MIC_CAPABLE;
micsetup(ai);
}
#endif
/* Save off the MAC */
for( i = 0; i < ETH_ALEN; i++ ) {
mac[i] = ai->config.macAddr[i];
}
/* Check to see if there are any insmod configured
rates to add */
if ( rates ) {
int i = 0;
if ( rates[0] ) memset(ai->config.rates,0,sizeof(ai->config.rates));
for( i = 0; i < 8 && rates[i]; i++ ) {
ai->config.rates[i] = rates[i];
}
}
if ( basic_rate > 0 ) {
int i;
for( i = 0; i < 8; i++ ) {
if ( ai->config.rates[i] == basic_rate ||
!ai->config.rates ) {
ai->config.rates[i] = basic_rate | 0x80;
break;
}
}
}
ai->need_commit = 1;
}
/* Setup the SSIDs if present */
if ( ssids[0] ) {
int i;
for( i = 0; i < 3 && ssids[i]; i++ ) {
mySsid.ssids[i].len = strlen(ssids[i]);
if ( mySsid.ssids[i].len > 32 )
mySsid.ssids[i].len = 32;
memcpy(mySsid.ssids[i].ssid, ssids[i],
mySsid.ssids[i].len);
}
}
status = writeConfigRid(ai);
if ( status != SUCCESS ) return ERROR;
/* Set up the SSID list */
status = writeSsidRid(ai, &mySsid);
if ( status != SUCCESS ) return ERROR;
status = enable_MAC(ai, &rsp);
if ( status != SUCCESS || (rsp.status & 0xFF00) != 0) {
printk( KERN_ERR "airo: Bad MAC enable reason = %x, rid = %x, offset = %dn", rsp.rsp0, rsp.rsp1, rsp.rsp2 );
return ERROR;
}
/* Grab the initial wep key, we gotta save it for auto_wep */
rc = readWepKeyRid(ai, &wkr, 1);
if (rc == SUCCESS) do {
lastindex = wkr.kindex;
if (wkr.kindex == 0xffff) {
ai->defindex = wkr.mac[0];
}
rc = readWepKeyRid(ai, &wkr, 0);
} while(lastindex != wkr.kindex);
if (auto_wep && !timer_pending(&ai->timer)) {
ai->timer.expires = RUN_AT(HZ*3);
add_timer(&ai->timer);
}
return SUCCESS;
}
static u16 issuecommand(struct airo_info *ai, Cmd *pCmd, Resp *pRsp) {
// Im really paranoid about letting it run forever!
int max_tries = 600000;
if (sendcommand(ai, pCmd) == (u16)ERROR)
return ERROR;
while (max_tries-- && (IN4500(ai, EVSTAT) & EV_CMD) == 0) {
if (!in_interrupt() && (max_tries & 255) == 0)
schedule();
}
if ( max_tries == -1 ) {
printk( KERN_ERR
"airo: Max tries exceeded waiting for commandn" );
return ERROR;
}
completecommand(ai, pRsp);
return SUCCESS;
}
static u16 sendcommand(struct airo_info *ai, Cmd *pCmd) {
// Im really paranoid about letting it run forever!
int max_tries = 600000;
u16 cmd;
OUT4500(ai, PARAM0, pCmd->parm0);
OUT4500(ai, PARAM1, pCmd->parm1);
OUT4500(ai, PARAM2, pCmd->parm2);
OUT4500(ai, COMMAND, pCmd->cmd);
while ( max_tries-- && (IN4500(ai, EVSTAT) & EV_CMD) == 0 &&
(cmd = IN4500(ai, COMMAND)) != 0 )
if (cmd == pCmd->cmd)
// PC4500 didn't notice command, try again
OUT4500(ai, COMMAND, pCmd->cmd);
if ( max_tries == -1 ) {
printk( KERN_ERR
"airo: Max tries exceeded when issueing commandn" );
return ERROR;
}
return SUCCESS;
}
static void completecommand(struct airo_info *ai, Resp *pRsp) {
// command completed
pRsp->status = IN4500(ai, STATUS);
pRsp->rsp0 = IN4500(ai, RESP0);
pRsp->rsp1 = IN4500(ai, RESP1);
pRsp->rsp2 = IN4500(ai, RESP2);
// clear stuck command busy if necessary
if (IN4500(ai, COMMAND) & COMMAND_BUSY) {
OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
}
// acknowledge processing the status/response
OUT4500(ai, EVACK, EV_CMD);
}
/* Sets up the bap to start exchange data. whichbap should
* be one of the BAP0 or BAP1 defines. Locks should be held before
* calling! */
static int bap_setup(struct airo_info *ai, u16 rid, u16 offset, int whichbap )
{
int timeout = 50;
int max_tries = 3;
OUT4500(ai, SELECT0+whichbap, rid);
OUT4500(ai, OFFSET0+whichbap, offset);
while (1) {
int status = IN4500(ai, OFFSET0+whichbap);
if (status & BAP_BUSY) {
/* This isn't really a timeout, but its kinda
close */
if (timeout--) {
continue;
}
} else if ( status & BAP_ERR ) {
/* invalid rid or offset */
printk( KERN_ERR "airo: BAP error %x %dn",
status, whichbap );
return ERROR;
} else if (status & BAP_DONE) { // success
return SUCCESS;
}
if ( !(max_tries--) ) {
printk( KERN_ERR
"airo: BAP setup error too many retriesn" );
return ERROR;
}
// -- PC4500 missed it, try again
OUT4500(ai, SELECT0+whichbap, rid);
OUT4500(ai, OFFSET0+whichbap, offset);
timeout = 50;
}
}
/* should only be called by aux_bap_read. This aux function and the
following use concepts not documented in the developers guide. I
got them from a patch given to my by Aironet */
static u16 aux_setup(struct airo_info *ai, u16 page,
u16 offset, u16 *len)
{
u16 next;
OUT4500(ai, AUXPAGE, page);
OUT4500(ai, AUXOFF, 0);
next = IN4500(ai, AUXDATA);
*len = IN4500(ai, AUXDATA)&0xff;
if (offset != 4) OUT4500(ai, AUXOFF, offset);
return next;
}
/* requires call to bap_setup() first */
static int aux_bap_read(struct airo_info *ai, u16 *pu16Dst,
int bytelen, int whichbap)
{
u16 len;
u16 page;
u16 offset;
u16 next;
int words;
int i;
long flags;
spin_lock_irqsave(&ai->aux_lock, flags);
page = IN4500(ai, SWS0+whichbap);
offset = IN4500(ai, SWS2+whichbap);
next = aux_setup(ai, page, offset, &len);
words = (bytelen+1)>>1;
for (i=0; i<words;) {
int count;
count = (len>>1) < (words-i) ? (len>>1) : (words-i);
if ( !do8bitIO )
insw( ai->dev->base_addr+DATA0+whichbap,
pu16Dst+i,count );
else
insb( ai->dev->base_addr+DATA0+whichbap,
pu16Dst+i, count << 1 );
i += count;
if (i<words) {
next = aux_setup(ai, next, 4, &len);
}
}
spin_unlock_irqrestore(&ai->aux_lock, flags);
return SUCCESS;
}
/* requires call to bap_setup() first */
static int fast_bap_read(struct airo_info *ai, u16 *pu16Dst,
int bytelen, int whichbap)
{
bytelen = (bytelen + 1) & (~1); // round up to even value
if ( !do8bitIO )
insw( ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen>>1 );
else
insb( ai->dev->base_addr+DATA0+whichbap, pu16Dst, bytelen );
return SUCCESS;
}
/* requires call to bap_setup() first */
static int bap_write(struct airo_info *ai, const u16 *pu16Src,
int bytelen, int whichbap)
{
bytelen = (bytelen + 1) & (~1); // round up to even value
if ( !do8bitIO )
outsw( ai->dev->base_addr+DATA0+whichbap,
pu16Src, bytelen>>1 );
else
outsb( ai->dev->base_addr+DATA0+whichbap, pu16Src, bytelen );
return SUCCESS;
}
static int PC4500_accessrid(struct airo_info *ai, u16 rid, u16 accmd)
{
Cmd cmd; /* for issuing commands */
Resp rsp; /* response from commands */
u16 status;
memset(&cmd, 0, sizeof(cmd));
cmd.cmd = accmd;
cmd.parm0 = rid;
status = issuecommand(ai, &cmd, &rsp);
if (status != 0) return status;
if ( (rsp.status & 0x7F00) != 0) {
return (accmd << 8) + (rsp.rsp0 & 0xFF);
}
return 0;
}
/* Note, that we are using BAP1 which is also used by transmit, so
* we must get a lock. */
static int PC4500_readrid(struct airo_info *ai, u16 rid, void *pBuf, int len)
{
u16 status, dolock = 0;
int rc = SUCCESS;
if (test_bit(FLAG_LOCKED, &ai->flags) == 0) {
dolock = 1;
if (down_interruptible(&ai->sem))
return ERROR;
}
if ( (status = PC4500_accessrid(ai, rid, CMD_ACCESS)) != SUCCESS) {
rc = status;
goto done;
}
if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
rc = ERROR;
goto done;
}
// read the rid length field
bap_read(ai, pBuf, 2, BAP1);
// length for remaining part of rid
len = min(len, (int)le16_to_cpu(*(u16*)pBuf)) - 2;
if ( len <= 2 ) {
printk( KERN_ERR
"airo: Rid %x has a length of %d which is too shortn",
(int)rid,
(int)len );
rc = ERROR;
goto done;
}
// read remainder of the rid
rc = bap_read(ai, ((u16*)pBuf)+1, len, BAP1);
done:
if (dolock)
up(&ai->sem);
return rc;
}
/* Note, that we are using BAP1 which is also used by transmit, so
* make sure this isnt called when a transmit is happening */
static int PC4500_writerid(struct airo_info *ai, u16 rid,
const void *pBuf, int len)
{
u16 status, dolock = 0;
int rc = SUCCESS;
if (test_bit(FLAG_LOCKED, &ai->flags) == 0) {
dolock = 1;
if (down_interruptible(&ai->sem))
return ERROR;
}
// --- first access so that we can write the rid data
if ( (status = PC4500_accessrid(ai, rid, CMD_ACCESS)) != 0) {
rc = status;
goto done;
}
// --- now write the rid data
if (bap_setup(ai, rid, 0, BAP1) != SUCCESS) {
rc = ERROR;
goto done;
}
bap_write(ai, pBuf, len, BAP1);
// ---now commit the rid data
rc = PC4500_accessrid(ai, rid, 0x100|CMD_ACCESS);
done:
if (dolock)
up(&ai->sem);
return rc;
}
/* Allocates a FID to be used for transmitting packets. We only use
one for now. */
static u16 transmit_allocate(struct airo_info *ai, int lenPayload, int raw)
{
Cmd cmd;
Resp rsp;
u16 txFid;
u16 txControl;
cmd.cmd = CMD_ALLOCATETX;
cmd.parm0 = lenPayload;
if (down_interruptible(&ai->sem))
return ERROR;
if (issuecommand(ai, &cmd, &rsp) != SUCCESS) {
txFid = 0;
goto done;
}
if ( (rsp.status & 0xFF00) != 0) {
txFid = 0;
goto done;
}
/* wait for the allocate event/indication
* It makes me kind of nervous that this can just sit here and spin,
* but in practice it only loops like four times. */
while ( (IN4500(ai, EVSTAT) & EV_ALLOC) == 0) ;
// get the allocated fid and acknowledge
txFid = IN4500(ai, TXALLOCFID);
OUT4500(ai, EVACK, EV_ALLOC);
/* The CARD is pretty cool since it converts the ethernet packet
* into 802.11. Also note that we don't release the FID since we
* will be using the same one over and over again. */
/* We only have to setup the control once since we are not
* releasing the fid. */
if (raw)
txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_11
| TXCTL_ETHERNET | TXCTL_NORELEASE);
else
txControl = cpu_to_le16(TXCTL_TXOK | TXCTL_TXEX | TXCTL_802_3
| TXCTL_ETHERNET | TXCTL_NORELEASE);
if (bap_setup(ai, txFid, 0x0008, BAP1) != SUCCESS)
txFid = ERROR;
else
bap_write(ai, &txControl, sizeof(txControl), BAP1);
done:
up(&ai->sem);
return txFid;
}
/* In general BAP1 is dedicated to transmiting packets. However,
since we need a BAP when accessing RIDs, we also use BAP1 for that.
Make sure the BAP1 spinlock is held when this is called. */
static int transmit_802_3_packet(struct airo_info *ai, int len, char *pPacket)
{
u16 payloadLen;
Cmd cmd;
Resp rsp;
int miclen = 0;
u16 txFid = len;
MICBuffer pMic;
len >>= 16;
if (len < ETH_ALEN * 2) {
printk( KERN_WARNING "Short packet %dn", len );
return ERROR;
}
len -= ETH_ALEN * 2;
#ifdef MICSUPPORT
if ((ai->flags & FLAG_MIC_CAPABLE) && ai->micstats.enabled &&
(ntohs(((u16 *)pPacket)[6]) != 0x888E)) {
if (encapsulate(ai,(etherHead *)pPacket,&pMic,len) != SUCCESS)
return ERROR;
miclen = sizeof(pMic);
}
#endif
// packet is destination[6], source[6], payload[len-12]
// write the payload length and dst/src/payload
if (bap_setup(ai, txFid, 0x0036, BAP1) != SUCCESS) return ERROR;
/* The hardware addresses aren't counted as part of the payload, so
* we have to subtract the 12 bytes for the addresses off */
payloadLen = cpu_to_le16(len + miclen);
bap_write(ai, &payloadLen, sizeof(payloadLen),BAP1);
bap_write(ai, (const u16*)pPacket, sizeof(etherHead), BAP1);
if (miclen)
bap_write(ai, (const u16*)&pMic, miclen, BAP1);
bap_write(ai, (const u16*)(pPacket + sizeof(etherHead)), len, BAP1);
// issue the transmit command
memset( &cmd, 0, sizeof( cmd ) );
cmd.cmd = CMD_TRANSMIT;
cmd.parm0 = txFid;
if (issuecommand(ai, &cmd, &rsp) != SUCCESS) return ERROR;
if ( (rsp.status & 0xFF00) != 0) return ERROR;
return SUCCESS;
}
static int transmit_802_11_packet(struct airo_info *ai, int len, char *pPacket)
{
u16 fc, payloadLen;
Cmd cmd;
Resp rsp;
int hdrlen;
struct {
u8 addr4[ETH_ALEN];
u16 gaplen;
u8 gap[6];
} gap;
u16 txFid = len;
len >>= 16;
gap.gaplen = 6;
fc = le16_to_cpu(*(const u16*)pPacket);
switch (fc & 0xc) {
case 4:
if ((fc & 0xe0) == 0xc0)
hdrlen = 10;
else
hdrlen = 16;
break;
case 8:
if ((fc&0x300)==0x300){
hdrlen = 30;
break;
}
default:
hdrlen = 24;
}
if (len < hdrlen) {
printk( KERN_WARNING "Short packet %dn", len );
return ERROR;
}
/* packet is 802.11 header + payload
* write the payload length and dst/src/payload */
if (bap_setup(ai, txFid, 6, BAP1) != SUCCESS) return ERROR;
/* The 802.11 header aren't counted as part of the payload, so
* we have to subtract the header bytes off */
payloadLen = cpu_to_le16(len-hdrlen);
bap_write(ai, &payloadLen, sizeof(payloadLen),BAP1);
if (bap_setup(ai, txFid, 0x0014, BAP1) != SUCCESS) return ERROR;
bap_write(ai, (const u16*)pPacket, hdrlen, BAP1);
bap_write(ai, hdrlen == 30 ?
(const u16*)&gap.gaplen : (const u16*)&gap, 38 - hdrlen, BAP1);
bap_write(ai, (const u16*)(pPacket + hdrlen), len - hdrlen, BAP1);
// issue the transmit command
memset( &cmd, 0, sizeof( cmd ) );
cmd.cmd = CMD_TRANSMIT;
cmd.parm0 = txFid;
if (issuecommand(ai, &cmd, &rsp) != SUCCESS) return ERROR;
if ( (rsp.status & 0xFF00) != 0) return ERROR;
return SUCCESS;
}
/*
* This is the proc_fs routines. It is a bit messier than I would
* like! Feel free to clean it up!
*/
static ssize_t proc_read( struct file *file,
char *buffer,
size_t len,
loff_t *offset);
static ssize_t proc_write( struct file *file,
const char *buffer,
size_t len,
loff_t *offset );
static int proc_close( struct inode *inode, struct file *file );
static int proc_stats_open( struct inode *inode, struct file *file );
static int proc_statsdelta_open( struct inode *inode, struct file *file );
static int proc_status_open( struct inode *inode, struct file *file );
static int proc_SSID_open( struct inode *inode, struct file *file );
static int proc_APList_open( struct inode *inode, struct file *file );
static int proc_BSSList_open( struct inode *inode, struct file *file );
static int proc_config_open( struct inode *inode, struct file *file );
static int proc_wepkey_open( struct inode *inode, struct file *file );
static struct file_operations proc_statsdelta_ops = {
read: proc_read,
open: proc_statsdelta_open,
release: proc_close
};
static struct file_operations proc_stats_ops = {
read: proc_read,
open: proc_stats_open,
release: proc_close
};
static struct file_operations proc_status_ops = {
read: proc_read,
open: proc_status_open,
release: proc_close
};
static struct file_operations proc_SSID_ops = {
read: proc_read,
write: proc_write,
open: proc_SSID_open,
release: proc_close
};
static struct file_operations proc_BSSList_ops = {
read: proc_read,
write: proc_write,
open: proc_BSSList_open,
release: proc_close
};
static struct file_operations proc_APList_ops = {
read: proc_read,
write: proc_write,
open: proc_APList_open,
release: proc_close
};
static struct file_operations proc_config_ops = {
read: proc_read,
write: proc_write,
open: proc_config_open,
release: proc_close
};
static struct file_operations proc_wepkey_ops = {
read: proc_read,
write: proc_write,
open: proc_wepkey_open,
release: proc_close
};
static struct proc_dir_entry *airo_entry = 0;
struct proc_data {
int release_buffer;
int readlen;
char *rbuffer;
int writelen;
int maxwritelen;
char *wbuffer;
void (*on_close) (struct inode *, struct file *);
};
#ifndef SETPROC_OPS
#define SETPROC_OPS(entry, ops) (entry)->proc_fops = &(ops)
#endif
static int setup_proc_entry( struct net_device *dev,
struct airo_info *apriv ) {
struct proc_dir_entry *entry;
/* First setup the device directory */
apriv->proc_entry = create_proc_entry(dev->name,
S_IFDIR|airo_perm,
airo_entry);
apriv->proc_entry->uid = proc_uid;
apriv->proc_entry->gid = proc_gid;
/* Setup the StatsDelta */
entry = create_proc_entry("StatsDelta",
S_IFREG | (S_IRUGO&proc_perm),
apriv->proc_entry);
entry->uid = proc_uid;
entry->gid = proc_gid;
entry->data = dev;
SETPROC_OPS(entry, proc_statsdelta_ops);
/* Setup the Stats */
entry = create_proc_entry("Stats",
S_IFREG | (S_IRUGO&proc_perm),
apriv->proc_entry);
entry->uid = proc_uid;
entry->gid = proc_gid;
entry->data = dev;
SETPROC_OPS(entry, proc_stats_ops);
/* Setup the Status */
entry = create_proc_entry("Status",
S_IFREG | (S_IRUGO&proc_perm),
apriv->proc_entry);
entry->uid = proc_uid;
entry->gid = proc_gid;
entry->data = dev;
SETPROC_OPS(entry, proc_status_ops);
/* Setup the Config */
entry = create_proc_entry("Config",
S_IFREG | proc_perm,
apriv->proc_entry);
entry->uid = proc_uid;
entry->gid = proc_gid;
entry->data = dev;
SETPROC_OPS(entry, proc_config_ops);
/* Setup the SSID */
entry = create_proc_entry("SSID",
S_IFREG | proc_perm,
apriv->proc_entry);
entry->uid = proc_uid;
entry->gid = proc_gid;
entry->data = dev;
SETPROC_OPS(entry, proc_SSID_ops);
/* Setup the APList */
entry = create_proc_entry("APList",
S_IFREG | proc_perm,
apriv->proc_entry);
entry->uid = proc_uid;
entry->gid = proc_gid;
entry->data = dev;
SETPROC_OPS(entry, proc_APList_ops);
/* Setup the BSSList */
entry = create_proc_entry("BSSList",
S_IFREG | proc_perm,
apriv->proc_entry);
entry->uid = proc_uid;
entry->gid = proc_gid;
entry->data = dev;
SETPROC_OPS(entry, proc_BSSList_ops);
/* Setup the WepKey */
entry = create_proc_entry("WepKey",
S_IFREG | proc_perm,
apriv->proc_entry);
entry->uid = proc_uid;
entry->gid = proc_gid;
entry->data = dev;
SETPROC_OPS(entry, proc_wepkey_ops);
return 0;
}
static int takedown_proc_entry( struct net_device *dev,
struct airo_info *apriv ) {
if ( !apriv->proc_entry->namelen ) return 0;
remove_proc_entry("Stats",apriv->proc_entry);
remove_proc_entry("StatsDelta",apriv->proc_entry);
remove_proc_entry("Status",apriv->proc_entry);
remove_proc_entry("Config",apriv->proc_entry);
remove_proc_entry("SSID",apriv->proc_entry);
remove_proc_entry("APList",apriv->proc_entry);
remove_proc_entry("BSSList",apriv->proc_entry);
remove_proc_entry("WepKey",apriv->proc_entry);
remove_proc_entry(dev->name,airo_entry);
return 0;
}
/*
* What we want from the proc_fs is to be able to efficiently read
* and write the configuration. To do this, we want to read the
* configuration when the file is opened and write it when the file is
* closed. So basically we allocate a read buffer at open and fill it
* with data, and allocate a write buffer and read it at close.
*/
/*
* The read routine is generic, it relies on the preallocated rbuffer
* to supply the data.
*/
static ssize_t proc_read( struct file *file,
char *buffer,
size_t len,
loff_t *offset )
{
int i;
int pos;
struct proc_data *priv = (struct proc_data*)file->private_data;
if( !priv->rbuffer ) return -EINVAL;
pos = *offset;
for( i = 0; i+pos < priv->readlen && i < len; i++ ) {
if (put_user( priv->rbuffer[i+pos], buffer+i ))
return -EFAULT;
}
*offset += i;
return i;
}
/*
* The write routine is generic, it fills in a preallocated rbuffer
* to supply the data.
*/
static ssize_t proc_write( struct file *file,
const char *buffer,
size_t len,
loff_t *offset )
{
int i;
int pos;
struct proc_data *priv = (struct proc_data*)file->private_data;
if ( !priv->wbuffer ) {
return -EINVAL;
}
pos = *offset;
for( i = 0; i + pos < priv->maxwritelen &&
i < len; i++ ) {
if (get_user( priv->wbuffer[i+pos], buffer + i ))
return -EFAULT;
}
if ( i+pos > priv->writelen ) priv->writelen = i+file->f_pos;
*offset += i;
return i;
}
static int proc_status_open( struct inode *inode, struct file *file ) {
struct proc_data *data;
struct proc_dir_entry *dp = PDE(inode);
struct net_device *dev = dp->data;
struct airo_info *apriv = dev->priv;
CapabilityRid cap_rid;
StatusRid status_rid;
int i;
MOD_INC_USE_COUNT;
if ((file->private_data = kmalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
return -ENOMEM;
memset(file->private_data, 0, sizeof(struct proc_data));
data = (struct proc_data *)file->private_data;
if ((data->rbuffer = kmalloc( 2048, GFP_KERNEL )) == NULL) {
kfree (file->private_data);
return -ENOMEM;
}
readStatusRid(apriv, &status_rid);
readCapabilityRid(apriv, &cap_rid);
i = sprintf(data->rbuffer, "Status: %s%s%s%s%s%s%s%s%sn",
status_rid.mode & 1 ? "CFG ": "",
status_rid.mode & 2 ? "ACT ": "",
status_rid.mode & 0x10 ? "SYN ": "",
status_rid.mode & 0x20 ? "LNK ": "",
status_rid.mode & 0x40 ? "LEAP ": "",
status_rid.mode & 0x80 ? "PRIV ": "",
status_rid.mode & 0x100 ? "KEY ": "",
status_rid.mode & 0x200 ? "WEP ": "",
status_rid.mode & 0x8000 ? "ERR ": "");
sprintf( data->rbuffer+i, "Mode: %xn"
"Signal Strength: %dn"
"Signal Quality: %dn"
"SSID: %-.*sn"
"AP: %-.16sn"
"Freq: %dn"
"BitRate: %dmbsn"
"Driver Version: %sn"
"Device: %snManufacturer: %snFirmware Version: %sn"
"Radio type: %xnCountry: %xnHardware Version: %xn"
"Software Version: %xnSoftware Subversion: %xn"
"Boot block version: %xn",
(int)status_rid.mode,
(int)status_rid.normalizedSignalStrength,
(int)status_rid.signalQuality,
(int)status_rid.SSIDlen,
status_rid.SSID,
status_rid.apName,
(int)status_rid.channel,
(int)status_rid.currentXmitRate/2,
version,
cap_rid.prodName,
cap_rid.manName,
cap_rid.prodVer,
cap_rid.radioType,
cap_rid.country,
cap_rid.hardVer,
(int)cap_rid.softVer,
(int)cap_rid.softSubVer,
(int)cap_rid.bootBlockVer );
data->readlen = strlen( data->rbuffer );
return 0;
}
static int proc_stats_rid_open(struct inode*, struct file*, u16);
static int proc_statsdelta_open( struct inode *inode,
struct file *file ) {
if (file->f_mode&FMODE_WRITE) {
return proc_stats_rid_open(inode, file, RID_STATSDELTACLEAR);
}
return proc_stats_rid_open(inode, file, RID_STATSDELTA);
}
static int proc_stats_open( struct inode *inode, struct file *file ) {
return proc_stats_rid_open(inode, file, RID_STATS);
}
static int proc_stats_rid_open( struct inode *inode,
struct file *file,
u16 rid ) {
struct proc_data *data;
struct proc_dir_entry *dp = PDE(inode);
struct net_device *dev = dp->data;
struct airo_info *apriv = dev->priv;
StatsRid stats;
int i, j;
int *vals = stats.vals;
MOD_INC_USE_COUNT;
if ((file->private_data = kmalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL)
return -ENOMEM;
memset(file->private_data, 0, sizeof(struct proc_data));
data = (struct proc_data *)file->private_data;
if ((data->rbuffer = kmalloc( 4096, GFP_KERNEL )) == NULL) {
kfree (file->private_data);
return -ENOMEM;
}
readStatsRid(apriv, &stats, rid);
j = 0;