diff options
Diffstat (limited to 'drivers/net/wireless/cisco/airo.c')
| -rw-r--r-- | drivers/net/wireless/cisco/airo.c | 8224 |
1 files changed, 8224 insertions, 0 deletions
diff --git a/drivers/net/wireless/cisco/airo.c b/drivers/net/wireless/cisco/airo.c new file mode 100644 index 000000000000..d2353f6e5214 --- /dev/null +++ b/drivers/net/wireless/cisco/airo.c @@ -0,0 +1,8224 @@ +/*====================================================================== + + 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 + (C) 1999 Benjamin Reed. All Rights Reserved. Permission to use + 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. + Support for MPI350 cards was added by Fabrice Bellet + <fabrice@bellet.info>. + +======================================================================*/ + +#include <linux/err.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/bitops.h> +#include <linux/scatterlist.h> +#include <linux/crypto.h> +#include <linux/io.h> +#include <asm/unaligned.h> + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/skbuff.h> +#include <linux/if_arp.h> +#include <linux/ioport.h> +#include <linux/pci.h> +#include <linux/uaccess.h> +#include <linux/kthread.h> +#include <linux/freezer.h> + +#include <net/cfg80211.h> +#include <net/iw_handler.h> + +#include "airo.h" + +#define DRV_NAME "airo" + +#ifdef CONFIG_PCI +static const struct pci_device_id card_ids[] = { + { 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, }, + { 0x14b9, 0x5000, PCI_ANY_ID, PCI_ANY_ID, }, + { 0x14b9, 0xa504, 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 int airo_pci_suspend(struct pci_dev *pdev, pm_message_t state); +static int airo_pci_resume(struct pci_dev *pdev); + +static struct pci_driver airo_driver = { + .name = DRV_NAME, + .id_table = card_ids, + .probe = airo_pci_probe, + .remove = airo_pci_remove, + .suspend = airo_pci_suspend, + .resume = airo_pci_resume, +}; +#endif /* CONFIG_PCI */ + +/* Include Wireless Extension definition and check version - Jean II */ +#include <linux/wireless.h> +#define WIRELESS_SPY /* enable iwspy support */ + +#define CISCO_EXT /* enable Cisco extensions */ +#ifdef CISCO_EXT +#include <linux/delay.h> +#endif + +/* 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(comment) NULL +static const 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 + + +/* 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 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 kuid_t proc_kuid; +static int proc_uid /* = 0 */; + +static kgid_t proc_kgid; +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/MPI cards and support for PCMCIA when used with airo_cs."); +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_SUPPORTED_DEVICE("Aironet 4500, 4800 and Cisco 340/350"); +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +module_param_array(rates, int, NULL, 0); +module_param_array(ssids, charp, NULL, 0); +module_param(auto_wep, int, 0); +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_param(aux_bap, int, 0); +MODULE_PARM_DESC(aux_bap, + "If non-zero, the driver will switch into a mode that seems to work better for older cards with some older buses. " + "Before switching it checks that the switch is needed."); +module_param(maxencrypt, int, 0); +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_param(adhoc, int, 0); +MODULE_PARM_DESC(adhoc, "If non-zero, the card will start in adhoc mode."); +module_param(probe, int, 0); +MODULE_PARM_DESC(probe, "If zero, the driver won't start the card."); + +module_param(proc_uid, int, 0); +MODULE_PARM_DESC(proc_uid, "The uid that the /proc files will belong to."); +module_param(proc_gid, int, 0); +MODULE_PARM_DESC(proc_gid, "The gid that the /proc files will belong to."); +module_param(airo_perm, int, 0); +MODULE_PARM_DESC(airo_perm, "The permission bits of /proc/[driver/]aironet."); +module_param(proc_perm, int, 0); +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_ALLOCATEAUX 0x0020 +#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 + +#define FID_TX 1 +#define FID_RX 2 +/* Offset into aux memory for descriptors */ +#define AUX_OFFSET 0x800 +/* Size of allocated packets */ +#define PKTSIZE 1840 +#define RIDSIZE 2048 +/* Size of the transmit queue */ +#define MAXTXQ 64 + +/* 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_TXCPY 0x400 +#define EV_UNKNOWN 0x800 +#define EV_MIC 0x1000 /* Message Integrity Check Interrupt */ +#define EV_AWAKEN 0x2000 +#define STATUS_INTS (EV_AWAKE|EV_LINK|EV_TXEXC|EV_TX|EV_TXCPY|EV_RX|EV_MIC) + +#ifdef CHECK_UNKNOWN_INTS +#define IGNORE_INTS ( EV_CMD | EV_UNKNOWN) +#else +#define IGNORE_INTS (~STATUS_INTS) +#endif + +/* RID TYPES */ +#define RID_RW 0x20 + +/* 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 +#define RID_WPA_BSSLISTFIRST 0xFF74 +#define RID_WPA_BSSLISTNEXT 0xFF75 + +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 structure came from an email sent to me from an engineer at + aironet for inclusion into this driver */ +typedef struct WepKeyRid WepKeyRid; +struct WepKeyRid { + __le16 len; + __le16 kindex; + u8 mac[ETH_ALEN]; + __le16 klen; + u8 key[16]; +} __packed; + +/* These structures are from the Aironet's PC4500 Developers Manual */ +typedef struct Ssid Ssid; +struct Ssid { + __le16 len; + u8 ssid[32]; +} __packed; + +typedef struct SsidRid SsidRid; +struct SsidRid { + __le16 len; + Ssid ssids[3]; +} __packed; + +typedef struct ModulationRid ModulationRid; +struct ModulationRid { + __le16 len; + __le16 modulation; +#define MOD_DEFAULT cpu_to_le16(0) +#define MOD_CCK cpu_to_le16(1) +#define MOD_MOK cpu_to_le16(2) +} __packed; + +typedef struct ConfigRid ConfigRid; +struct ConfigRid { + __le16 len; /* sizeof(ConfigRid) */ + __le16 opmode; /* operating mode */ +#define MODE_STA_IBSS cpu_to_le16(0) +#define MODE_STA_ESS cpu_to_le16(1) +#define MODE_AP cpu_to_le16(2) +#define MODE_AP_RPTR cpu_to_le16(3) +#define MODE_CFG_MASK cpu_to_le16(0xff) +#define MODE_ETHERNET_HOST cpu_to_le16(0<<8) /* rx payloads converted */ +#define MODE_LLC_HOST cpu_to_le16(1<<8) /* rx payloads left as is */ +#define MODE_AIRONET_EXTEND cpu_to_le16(1<<9) /* enable Aironet extenstions */ +#define MODE_AP_INTERFACE cpu_to_le16(1<<10) /* enable ap interface extensions */ +#define MODE_ANTENNA_ALIGN cpu_to_le16(1<<11) /* enable antenna alignment */ +#define MODE_ETHER_LLC cpu_to_le16(1<<12) /* enable ethernet LLC */ +#define MODE_LEAF_NODE cpu_to_le16(1<<13) /* enable leaf node bridge */ +#define MODE_CF_POLLABLE cpu_to_le16(1<<14) /* enable CF pollable */ +#define MODE_MIC cpu_to_le16(1<<15) /* enable MIC */ + __le16 rmode; /* receive mode */ +#define RXMODE_BC_MC_ADDR cpu_to_le16(0) +#define RXMODE_BC_ADDR cpu_to_le16(1) /* ignore multicasts */ +#define RXMODE_ADDR cpu_to_le16(2) /* ignore multicast and broadcast */ +#define RXMODE_RFMON cpu_to_le16(3) /* wireless monitor mode */ +#define RXMODE_RFMON_ANYBSS cpu_to_le16(4) +#define RXMODE_LANMON cpu_to_le16(5) /* lan style monitor -- data packets only */ +#define RXMODE_MASK cpu_to_le16(255) +#define RXMODE_DISABLE_802_3_HEADER cpu_to_le16(1<<8) /* disables 802.3 header on rx */ +#define RXMODE_FULL_MASK (RXMODE_MASK | RXMODE_DISABLE_802_3_HEADER) +#define RXMODE_NORMALIZED_RSSI cpu_to_le16(1<<9) /* return normalized RSSI */ + __le16 fragThresh; + __le16 rtsThres; + u8 macAddr[ETH_ALEN]; + u8 rates[8]; + __le16 shortRetryLimit; + __le16 longRetryLimit; + __le16 txLifetime; /* in kusec */ + __le16 rxLifetime; /* in kusec */ + __le16 stationary; + __le16 ordering; + __le16 u16deviceType; /* for overriding device type */ + __le16 cfpRate; + __le16 cfpDuration; + __le16 _reserved1[3]; + /*---------- Scanning/Associating ----------*/ + __le16 scanMode; +#define SCANMODE_ACTIVE cpu_to_le16(0) +#define SCANMODE_PASSIVE cpu_to_le16(1) +#define SCANMODE_AIROSCAN cpu_to_le16(2) + __le16 probeDelay; /* in kusec */ + __le16 probeEnergyTimeout; /* in kusec */ + __le16 probeResponseTimeout; + __le16 beaconListenTimeout; + __le16 joinNetTimeout; + __le16 authTimeout; + __le16 authType; +#define AUTH_OPEN cpu_to_le16(0x1) +#define AUTH_ENCRYPT cpu_to_le16(0x101) +#define AUTH_SHAREDKEY cpu_to_le16(0x102) +#define AUTH_ALLOW_UNENCRYPTED cpu_to_le16(0x200) + __le16 associationTimeout; + __le16 specifiedApTimeout; + __le16 offlineScanInterval; + __le16 offlineScanDuration; + __le16 linkLossDelay; + __le16 maxBeaconLostTime; + __le16 refreshInterval; +#define DISABLE_REFRESH cpu_to_le16(0xFFFF) + __le16 _reserved1a[1]; + /*---------- Power save operation ----------*/ + __le16 powerSaveMode; +#define POWERSAVE_CAM cpu_to_le16(0) +#define POWERSAVE_PSP cpu_to_le16(1) +#define POWERSAVE_PSPCAM cpu_to_le16(2) + __le16 sleepForDtims; + __le16 listenInterval; + __le16 fastListenInterval; + __le16 listenDecay; + __le16 fastListenDelay; + __le16 _reserved2[2]; + /*---------- Ap/Ibss config items ----------*/ + __le16 beaconPeriod; + __le16 atimDuration; + __le16 hopPeriod; + __le16 channelSet; + __le16 channel; + __le16 dtimPeriod; + __le16 bridgeDistance; + __le16 radioID; + /*---------- Radio configuration ----------*/ + __le16 radioType; +#define RADIOTYPE_DEFAULT cpu_to_le16(0) +#define RADIOTYPE_802_11 cpu_to_le16(1) +#define RADIOTYPE_LEGACY cpu_to_le16(2) + u8 rxDiversity; + u8 txDiversity; + __le16 txPower; +#define TXPOWER_DEFAULT 0 + __le16 rssiThreshold; +#define RSSI_DEFAULT 0 + __le16 modulation; +#define PREAMBLE_AUTO cpu_to_le16(0) +#define PREAMBLE_LONG cpu_to_le16(1) +#define PREAMBLE_SHORT cpu_to_le16(2) + __le16 preamble; + __le16 homeProduct; + __le16 radioSpecific; + /*---------- Aironet Extensions ----------*/ + u8 nodeName[16]; + __le16 arlThreshold; + __le16 arlDecay; + __le16 arlDelay; + __le16 _reserved4[1]; + /*---------- Aironet Extensions ----------*/ + u8 magicAction; +#define MAGIC_ACTION_STSCHG 1 +#define MAGIC_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) + u8 magicControl; + __le16 autoWake; +} __packed; + +typedef struct StatusRid StatusRid; +struct StatusRid { + __le16 len; + u8 mac[ETH_ALEN]; + __le16 mode; + __le16 errorCode; + __le16 sigQuality; + __le16 SSIDlen; + char SSID[32]; + char apName[16]; + u8 bssid[4][ETH_ALEN]; + __le16 beaconPeriod; + __le16 dimPeriod; + __le16 atimDuration; + __le16 hopPeriod; + __le16 channelSet; + __le16 channel; + __le16 hopsToBackbone; + __le16 apTotalLoad; + __le16 generatedLoad; + __le16 accumulatedArl; + __le16 signalQuality; + __le16 currentXmitRate; + __le16 apDevExtensions; + __le16 normalizedSignalStrength; + __le16 shortPreamble; + u8 apIP[4]; + u8 noisePercent; /* Noise percent in last second */ + u8 noisedBm; /* Noise dBm in last second */ + u8 noiseAvePercent; /* Noise percent in last minute */ + u8 noiseAvedBm; /* Noise dBm in last minute */ + u8 noiseMaxPercent; /* Highest noise percent in last minute */ + u8 noiseMaxdBm; /* Highest noise dbm in last minute */ + __le16 load; + u8 carrier[4]; + __le16 assocStatus; +#define STAT_NOPACKETS 0 +#define STAT_NOCARRIERSET 10 +#define STAT_GOTCARRIERSET 11 +#define STAT_WRONGSSID 20 +#define STAT_BADCHANNEL 25 +#define STAT_BADBITRATES 30 +#define STAT_BADPRIVACY 35 +#define STAT_APFOUND 40 +#define STAT_APREJECTED 50 +#define STAT_AUTHENTICATING 60 +#define STAT_DEAUTHENTICATED 61 +#define STAT_AUTHTIMEOUT 62 +#define STAT_ASSOCIATING 70 +#define STAT_DEASSOCIATED 71 +#define STAT_ASSOCTIMEOUT 72 +#define STAT_NOTAIROAP 73 +#define STAT_ASSOCIATED 80 +#define STAT_LEAPING 90 +#define STAT_LEAPFAILED 91 +#define STAT_LEAPTIMEDOUT 92 +#define STAT_LEAPCOMPLETE 93 +} __packed; + +typedef struct StatsRid StatsRid; +struct StatsRid { + __le16 len; + __le16 spacer; + __le32 vals[100]; +} __packed; + +typedef struct APListRid APListRid; +struct APListRid { + __le16 len; + u8 ap[4][ETH_ALEN]; +} __packed; + +typedef struct CapabilityRid CapabilityRid; +struct CapabilityRid { + __le16 len; + char oui[3]; + char zero; + __le16 prodNum; + char manName[32]; + char prodName[16]; + char prodVer[8]; + char factoryAddr[ETH_ALEN]; + char aironetAddr[ETH_ALEN]; + __le16 radioType; + __le16 country; + char callid[ETH_ALEN]; + char supportedRates[8]; + char rxDiversity; + char txDiversity; + __le16 txPowerLevels[8]; + __le16 hardVer; + __le16 hardCap; + __le16 tempRange; + __le16 softVer; + __le16 softSubVer; + __le16 interfaceVer; + __le16 softCap; + __le16 bootBlockVer; + __le16 requiredHard; + __le16 extSoftCap; +} __packed; + +/* Only present on firmware >= 5.30.17 */ +typedef struct BSSListRidExtra BSSListRidExtra; +struct BSSListRidExtra { + __le16 unknown[4]; + u8 fixed[12]; /* WLAN management frame */ + u8 iep[624]; +} __packed; + +typedef struct BSSListRid BSSListRid; +struct BSSListRid { + __le16 len; + __le16 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) */ + __le16 radioType; + u8 bssid[ETH_ALEN]; /* Mac address of the BSS */ + u8 zero; + u8 ssidLen; + u8 ssid[32]; + __le16 dBm; +#define CAP_ESS cpu_to_le16(1<<0) +#define CAP_IBSS cpu_to_le16(1<<1) +#define CAP_PRIVACY cpu_to_le16(1<<4) +#define CAP_SHORTHDR cpu_to_le16(1<<5) + __le16 cap; + __le16 beaconInterval; + u8 rates[8]; /* Same as rates for config rid */ + struct { /* For frequency hopping only */ + __le16 dwell; + u8 hopSet; + u8 hopPattern; + u8 hopIndex; + u8 fill; + } fh; + __le16 dsChannel; + __le16 atimWindow; + + /* Only present on firmware >= 5.30.17 */ + BSSListRidExtra extra; +} __packed; + +typedef struct { + BSSListRid bss; + struct list_head list; +} BSSListElement; + +typedef struct tdsRssiEntry tdsRssiEntry; +struct tdsRssiEntry { + u8 rssipct; + u8 rssidBm; +} __packed; + +typedef struct tdsRssiRid tdsRssiRid; +struct tdsRssiRid { + u16 len; + tdsRssiEntry x[256]; +} __packed; + +typedef struct MICRid MICRid; +struct MICRid { + __le16 len; + __le16 state; + __le16 multicastValid; + u8 multicast[16]; + __le16 unicastValid; + u8 unicast[16]; +} __packed; + +typedef struct MICBuffer MICBuffer; +struct MICBuffer { + __be16 typelen; + + union { + u8 snap[8]; + struct { + u8 dsap; + u8 ssap; + u8 control; + u8 orgcode[3]; + u8 fieldtype[2]; + } llc; + } u; + __be32 mic; + __be32 seq; +} __packed; + +typedef struct { + u8 da[ETH_ALEN]; + u8 sa[ETH_ALEN]; +} etherHead; + +#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 +#define AIROGID 14 +#define AIRORRID 15 +#define AIRORSWVERSION 17 + +/* 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 +#define AUXMEMSIZE (256 * 1024) + +typedef struct aironet_ioctl { + unsigned short command; // What to do + unsigned short len; // Len of data + unsigned short ridnum; // rid number + unsigned char __user *data; // d-data +} aironet_ioctl; + +static const char swversion[] = "2.1"; +#endif /* CISCO_EXT */ + +#define NUM_MODULES 2 +#define MIC_MSGLEN_MAX 2400 +#define EMMH32_MSGLEN_MAX MIC_MSGLEN_MAX +#define AIRO_DEF_MTU 2312 + +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]; + __be32 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; + +typedef struct { + unsigned int rid: 16; + unsigned int len: 15; + unsigned int valid: 1; + dma_addr_t host_addr; +} Rid; + +typedef struct { + unsigned int offset: 15; + unsigned int eoc: 1; + unsigned int len: 15; + unsigned int valid: 1; + dma_addr_t host_addr; +} TxFid; + +struct rx_hdr { + __le16 status, len; + u8 rssi[2]; + u8 rate; + u8 freq; + __le16 tmp[4]; +} __packed; + +typedef struct { + unsigned int ctl: 15; + unsigned int rdy: 1; + unsigned int len: 15; + unsigned int valid: 1; + dma_addr_t host_addr; +} RxFid; + +/* + * Host receive descriptor + */ +typedef struct { + unsigned char __iomem *card_ram_off; /* offset into card memory of the + desc */ + RxFid rx_desc; /* card receive descriptor */ + char *virtual_host_addr; /* virtual address of host receive + buffer */ + int pending; +} HostRxDesc; + +/* + * Host transmit descriptor + */ +typedef struct { + unsigned char __iomem *card_ram_off; /* offset into card memory of the + desc */ + TxFid tx_desc; /* card transmit descriptor */ + char *virtual_host_addr; /* virtual address of host receive + buffer */ + int pending; +} HostTxDesc; + +/* + * Host RID descriptor + */ +typedef struct { + unsigned char __iomem *card_ram_off; /* offset into card memory of the + descriptor */ + Rid rid_desc; /* card RID descriptor */ + char *virtual_host_addr; /* virtual address of host receive + buffer */ +} HostRidDesc; + +typedef struct { + u16 sw0; + u16 sw1; + u16 status; + u16 len; +#define HOST_SET (1 << 0) +#define HOST_INT_TX (1 << 1) /* Interrupt on successful TX */ +#define HOST_INT_TXERR (1 << 2) /* Interrupt on unseccessful TX */ +#define HOST_LCC_PAYLOAD (1 << 4) /* LLC payload, 0 = Ethertype */ +#define HOST_DONT_RLSE (1 << 5) /* Don't release buffer when done */ +#define HOST_DONT_RETRY (1 << 6) /* Don't retry trasmit */ +#define HOST_CLR_AID (1 << 7) /* clear AID failure */ +#define HOST_RTS (1 << 9) /* Force RTS use */ +#define HOST_SHORT (1 << 10) /* Do short preamble */ + u16 ctl; + u16 aid; + u16 retries; + u16 fill; +} TxCtlHdr; + +typedef struct { + u16 ctl; + u16 duration; + char addr1[6]; + char addr2[6]; + char addr3[6]; + u16 seq; + char addr4[6]; +} WifiHdr; + + +typedef struct { + TxCtlHdr ctlhdr; + u16 fill1; + u16 fill2; + WifiHdr wifihdr; + u16 gaplen; + u16 status; +} WifiCtlHdr; + +static WifiCtlHdr wifictlhdr8023 = { + .ctlhdr = { + .ctl = HOST_DONT_RLSE, + } +}; + +// 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; + +/* List of Wireless Handlers (new API) */ +static const struct iw_handler_def airo_handler_def; + +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, int lock); +static int enable_MAC(struct airo_info *ai, int lock); +static void disable_MAC(struct airo_info *ai, int lock); +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 int bap_setup(struct airo_info*, u16 rid, u16 offset, int whichbap); +static int aux_bap_read(struct airo_info*, __le16 *pu16Dst, int bytelen, + int whichbap); +static int fast_bap_read(struct airo_info*, __le16 *pu16Dst, int bytelen, + int whichbap); +static int bap_write(struct airo_info*, const __le16 *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, int lock); +static int PC4500_writerid(struct airo_info*, u16 rid, const void + *pBuf, int len, int lock); +static int do_writerid( struct airo_info*, u16 rid, const void *rid_data, + int len, int dummy ); +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 int mpi_send_packet (struct net_device *dev); +static void mpi_unmap_card(struct pci_dev *pci); +static void mpi_receive_802_3(struct airo_info *ai); +static void mpi_receive_802_11(struct airo_info *ai); +static int waitbusy (struct airo_info *ai); + +static irqreturn_t airo_interrupt( int irq, void* dev_id); +static int airo_thread(void *data); +static void timer_func( struct net_device *dev ); +static int airo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); +static struct iw_statistics *airo_get_wireless_stats (struct net_device *dev); +static void airo_read_wireless_stats (struct airo_info *local); +#ifdef CISCO_EXT +static int readrids(struct net_device *dev, aironet_ioctl *comp); +static int writerids(struct net_device *dev, aironet_ioctl *comp); +static int flashcard(struct net_device *dev, aironet_ioctl *comp); +#endif /* CISCO_EXT */ +static void micinit(struct airo_info *ai); +static int 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); + +static u8 airo_rssi_to_dbm (tdsRssiEntry *rssi_rid, u8 rssi); +static u8 airo_dbm_to_pct (tdsRssiEntry *rssi_rid, u8 dbm); + +static void airo_networks_free(struct airo_info *ai); + +struct airo_info { + struct net_device *dev; + struct list_head dev_list; + /* Note, we can have MAX_FIDS outstanding. FIDs are 16-bits, so we + use the high bit to mark whether it is in use. */ +#define MAX_FIDS 6 +#define MPI_MAX_FIDS 1 + u32 fids[MAX_FIDS]; + ConfigRid config; + char keyindex; // Used with auto wep + char defindex; // Used with auto wep + struct proc_dir_entry *proc_entry; + spinlock_t aux_lock; +#define FLAG_RADIO_OFF 0 /* User disabling of MAC */ +#define FLAG_RADIO_DOWN 1 /* ifup/ifdown disabling of MAC */ +#define FLAG_RADIO_MASK 0x03 +#define FLAG_ENABLED 2 +#define FLAG_ADHOC 3 /* Needed by MIC */ +#define FLAG_MIC_CAPABLE 4 +#define FLAG_UPDATE_MULTI 5 +#define FLAG_UPDATE_UNI 6 +#define FLAG_802_11 7 +#define FLAG_PROMISC 8 /* IFF_PROMISC 0x100 - include/linux/if.h */ +#define FLAG_PENDING_XMIT 9 +#define FLAG_PENDING_XMIT11 10 +#define FLAG_MPI 11 +#define FLAG_REGISTERED 12 +#define FLAG_COMMIT 13 +#define FLAG_RESET 14 +#define FLAG_FLASHING 15 +#define FLAG_WPA_CAPABLE 16 + unsigned long flags; +#define JOB_DIE 0 +#define JOB_XMIT 1 +#define JOB_XMIT11 2 +#define JOB_STATS 3 +#define JOB_PROMISC 4 +#define JOB_MIC 5 +#define JOB_EVENT 6 +#define JOB_AUTOWEP 7 +#define JOB_WSTATS 8 +#define JOB_SCAN_RESULTS 9 + unsigned long jobs; + int (*bap_read)(struct airo_info*, __le16 *pu16Dst, int bytelen, + int whichbap); + unsigned short *flash; + tdsRssiEntry *rssi; + struct task_struct *list_bss_task; + struct task_struct *airo_thread_task; + struct semaphore sem; + wait_queue_head_t thr_wait; + unsigned long expires; + struct { + struct sk_buff *skb; + int fid; + } xmit, xmit11; + struct net_device *wifidev; + struct iw_statistics wstats; // wireless stats + unsigned long scan_timeout; /* Time scan should be read */ + struct iw_spy_data spy_data; + struct iw_public_data wireless_data; + /* MIC stuff */ + struct crypto_cipher *tfm; + mic_module mod[2]; + mic_statistics micstats; + HostRxDesc rxfids[MPI_MAX_FIDS]; // rx/tx/config MPI350 descriptors + HostTxDesc txfids[MPI_MAX_FIDS]; + HostRidDesc config_desc; + unsigned long ridbus; // phys addr of config_desc + struct sk_buff_head txq;// tx queue used by mpi350 code + struct pci_dev *pci; + unsigned char __iomem *pcimem; + unsigned char __iomem *pciaux; + unsigned char *shared; + dma_addr_t shared_dma; + pm_message_t power; + SsidRid *SSID; + APListRid APList; +#define PCI_SHARED_LEN 2*MPI_MAX_FIDS*PKTSIZE+RIDSIZE + char proc_name[IFNAMSIZ]; + + int wep_capable; + int max_wep_idx; + int last_auth; + + /* WPA-related stuff */ + unsigned int bssListFirst; + unsigned int bssListNext; + unsigned int bssListRidLen; + + struct list_head network_list; + struct list_head network_free_list; + BSSListElement *networks; +}; + +static inline int bap_read(struct airo_info *ai, __le16 *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 ); + +static int cmdreset(struct airo_info *ai); +static int setflashmode (struct airo_info *ai); +static int flashgchar(struct airo_info *ai,int matchbyte,int dwelltime); +static int flashputbuf(struct airo_info *ai); +static int flashrestart(struct airo_info *ai,struct net_device *dev); + +#define airo_print(type, name, fmt, args...) \ + printk(type DRV_NAME "(%s): " fmt "\n", name, ##args) + +#define airo_print_info(name, fmt, args...) \ + airo_print(KERN_INFO, name, fmt, ##args) + +#define airo_print_dbg(name, fmt, args...) \ + airo_print(KERN_DEBUG, name, fmt, ##args) + +#define airo_print_warn(name, fmt, args...) \ + airo_print(KERN_WARNING, name, fmt, ##args) + +#define airo_print_err(name, fmt, args...) \ + airo_print(KERN_ERR, name, fmt, ##args) + +#define AIRO_FLASH(dev) (((struct airo_info *)dev->ml_priv)->flash) + +/*********************************************************************** + * MIC ROUTINES * + *********************************************************************** + */ + +static int RxSeqValid (struct airo_info *ai,miccntx *context,int mcast,u32 micSeq); +static void MoveWindow(miccntx *context, u32 micSeq); +static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, + struct crypto_cipher *tfm); +static void emmh32_init(emmh32_context *context); +static void emmh32_update(emmh32_context *context, u8 *pOctets, int len); +static void emmh32_final(emmh32_context *context, u8 digest[4]); +static int flashpchar(struct airo_info *ai,int byte,int dwelltime); + +static void age_mic_context(miccntx *cur, miccntx *old, u8 *key, int key_len, + struct crypto_cipher *tfm) +{ + /* If the current MIC context is valid and its key is the same as + * the MIC register, there's nothing to do. + */ + if (cur->valid && (memcmp(cur->key, key, key_len) == 0)) + return; + + /* Age current mic Context */ + memcpy(old, cur, sizeof(*cur)); + + /* Initialize new context */ + memcpy(cur->key, key, key_len); + cur->window = 33; /* Window always points to the middle */ + cur->rx = 0; /* Rx Sequence numbers */ + cur->tx = 0; /* Tx sequence numbers */ + cur->valid = 1; /* Key is now valid */ + + /* Give key to mic seed */ + emmh32_setseed(&cur->seed, key, key_len, tfm); +} + +/* micinit - Initialize mic seed */ + +static void micinit(struct airo_info *ai) +{ + MICRid mic_rid; + + clear_bit(JOB_MIC, &ai->jobs); + PC4500_readrid(ai, RID_MIC, &mic_rid, sizeof(mic_rid), 0); + up(&ai->sem); + + ai->micstats.enabled = (le16_to_cpu(mic_rid.state) & 0x00FF) ? 1 : 0; + if (!ai->micstats.enabled) { + /* So next time we have a valid key and mic is enabled, we will + * update the sequence number if the key is the same as before. + */ + ai->mod[0].uCtx.valid = 0; + ai->mod[0].mCtx.valid = 0; + return; + } + + if (mic_rid.multicastValid) { + age_mic_context(&ai->mod[0].mCtx, &ai->mod[1].mCtx, + mic_rid.multicast, sizeof(mic_rid.multicast), + ai->tfm); + } + + if (mic_rid.unicastValid) { + age_mic_context(&ai->mod[0].uCtx, &ai->mod[1].uCtx, + mic_rid.unicast, sizeof(mic_rid.unicast), + ai->tfm); + } +} + +/* micsetup - Get ready for business */ + +static int micsetup(struct airo_info *ai) { + int i; + + if (ai->tfm == NULL) + ai->tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC); + + if (IS_ERR(ai->tfm)) { + airo_print_err(ai->dev->name, "failed to load transform for AES"); + ai->tfm = NULL; + return ERROR; + } + + for (i=0; i < NUM_MODULES; i++) { + memset(&ai->mod[i].mCtx,0,sizeof(miccntx)); + memset(&ai->mod[i].uCtx,0,sizeof(miccntx)); + } + return SUCCESS; +} + +static const u8 micsnap[] = {0xAA,0xAA,0x03,0x00,0x40,0x96,0x00,0x02}; + +/*=========================================================================== + * Description: Mic a packet + * + * Inputs: etherHead * pointer to an 802.3 frame + * + * Returns: BOOLEAN if successful, otherwise false. + * PacketTxLen will be updated with the mic'd packets size. + * + * Caveats: It is assumed that the frame buffer will already + * be big enough to hold the largets mic message possible. + * (No memory allocation is done here). + * + * Author: sbraneky (10/15/01) + * Merciless hacks by rwilcher (1/14/02) + */ + +static int encapsulate(struct airo_info *ai ,etherHead *frame, MICBuffer *mic, int payLen) +{ + miccntx *context; + + // Determine correct context + // If not adhoc, always use unicast key + + if (test_bit(FLAG_ADHOC, &ai->flags) && (frame->da[0] & 0x1)) + context = &ai->mod[0].mCtx; + else + context = &ai->mod[0].uCtx; + + if (!context->valid) + return ERROR; + + mic->typelen = htons(payLen + 16); //Length of Mic'd packet + + memcpy(&mic->u.snap, micsnap, sizeof(micsnap)); // Add Snap + + // Add Tx sequence + mic->seq = htonl(context->tx); + context->tx += 2; + + emmh32_init(&context->seed); // Mic the packet + emmh32_update(&context->seed,frame->da,ETH_ALEN * 2); // DA,SA + emmh32_update(&context->seed,(u8*)&mic->typelen,10); // Type/Length and Snap + emmh32_update(&context->seed,(u8*)&mic->seq,sizeof(mic->seq)); //SEQ + emmh32_update(&context->seed,(u8*)(frame + 1),payLen); //payload + emmh32_final(&context->seed, (u8*)&mic->mic); + + /* New Type/length ?????????? */ + mic->typelen = 0; //Let NIC know it could be an oversized packet + return SUCCESS; +} + +typedef enum { + NONE, + NOMIC, + NOMICPLUMMED, + SEQUENCE, + INCORRECTMIC, +} mic_error; + +/*=========================================================================== + * Description: Decapsulates a MIC'd packet and returns the 802.3 packet + * (removes the MIC stuff) if packet is a valid packet. + * + * Inputs: etherHead pointer to the 802.3 packet + * + * Returns: BOOLEAN - TRUE if packet should be dropped otherwise FALSE + * + * Author: sbraneky (10/15/01) + * Merciless hacks by rwilcher (1/14/02) + *--------------------------------------------------------------------------- + */ + +static int decapsulate(struct airo_info *ai, MICBuffer *mic, etherHead *eth, u16 payLen) +{ + int i; + u32 micSEQ; + miccntx *context; + u8 digest[4]; + mic_error micError = NONE; + + // Check if the packet is a Mic'd packet + + if (!ai->micstats.enabled) { + //No Mic set or Mic OFF but we received a MIC'd packet. + if (memcmp ((u8*)eth + 14, micsnap, sizeof(micsnap)) == 0) { + ai->micstats.rxMICPlummed++; + return ERROR; + } + return SUCCESS; + } + + if (ntohs(mic->typelen) == 0x888E) + return SUCCESS; + + if (memcmp (mic->u.snap, micsnap, sizeof(micsnap)) != 0) { + // Mic enabled but packet isn't Mic'd + ai->micstats.rxMICPlummed++; + return ERROR; + } + + micSEQ = ntohl(mic->seq); //store SEQ as CPU order + + //At this point we a have a mic'd packet and mic is enabled + //Now do the mic error checking. + + //Receive seq must be odd + if ( (micSEQ & 1) == 0 ) { + ai->micstats.rxWrongSequence++; + return ERROR; + } + + for (i = 0; i < NUM_MODULES; i++) { + int mcast = eth->da[0] & 1; + //Determine proper context + context = mcast ? &ai->mod[i].mCtx : &ai->mod[i].uCtx; + + //Make sure context is valid + if (!context->valid) { + if (i == 0) + micError = NOMICPLUMMED; + continue; + } + //DeMic it + + if (!mic->typelen) + mic->typelen = htons(payLen + sizeof(MICBuffer) - 2); + + emmh32_init(&context->seed); + emmh32_update(&context->seed, eth->da, ETH_ALEN*2); + emmh32_update(&context->seed, (u8 *)&mic->typelen, sizeof(mic->typelen)+sizeof(mic->u.snap)); + emmh32_update(&context->seed, (u8 *)&mic->seq,sizeof(mic->seq)); + emmh32_update(&context->seed, (u8 *)(eth + 1),payLen); + //Calculate MIC + emmh32_final(&context->seed, digest); + + if (memcmp(digest, &mic->mic, 4)) { //Make sure the mics match + //Invalid Mic + if (i == 0) + micError = INCORRECTMIC; + continue; + } + + //Check Sequence number if mics pass + if (RxSeqValid(ai, context, mcast, micSEQ) == SUCCESS) { + ai->micstats.rxSuccess++; + return SUCCESS; + } + if (i == 0) + micError = SEQUENCE; + } + + // Update statistics + switch (micError) { + case NOMICPLUMMED: ai->micstats.rxMICPlummed++; break; + case SEQUENCE: ai->micstats.rxWrongSequence++; break; + case INCORRECTMIC: ai->micstats.rxIncorrectMIC++; break; + case NONE: break; + case NOMIC: break; + } + return ERROR; +} + +/*=========================================================================== + * Description: Checks the Rx Seq number to make sure it is valid + * and hasn't already been received + * + * Inputs: miccntx - mic context to check seq against + * micSeq - the Mic seq number + * + * Returns: TRUE if valid otherwise FALSE. + * + * Author: sbraneky (10/15/01) + * Merciless hacks by rwilcher (1/14/02) + *--------------------------------------------------------------------------- + */ + +static int RxSeqValid (struct airo_info *ai,miccntx *context,int mcast,u32 micSeq) +{ + u32 seq,index; + + //Allow for the ap being rebooted - if it is then use the next + //sequence number of the current sequence number - might go backwards + + if (mcast) { + if (test_bit(FLAG_UPDATE_MULTI, &ai->flags)) { + clear_bit (FLAG_UPDATE_MULTI, &ai->flags); + context->window = (micSeq > 33) ? micSeq : 33; + context->rx = 0; // Reset rx + } + } else if (test_bit(FLAG_UPDATE_UNI, &ai->flags)) { + clear_bit (FLAG_UPDATE_UNI, &ai->flags); + context->window = (micSeq > 33) ? micSeq : 33; // Move window + context->rx = 0; // Reset rx + } + + //Make sequence number relative to START of window + seq = micSeq - (context->window - 33); + + //Too old of a SEQ number to check. + if ((s32)seq < 0) + return ERROR; + + if ( seq > 64 ) { + //Window is infinite forward + MoveWindow(context,micSeq); + return SUCCESS; + } + + // We are in the window. Now check the context rx bit to see if it was already sent + seq >>= 1; //divide by 2 because we only have odd numbers + index = 1 << seq; //Get an index number + + if (!(context->rx & index)) { + //micSEQ falls inside the window. + //Add seqence number to the list of received numbers. + context->rx |= index; + + MoveWindow(context,micSeq); + + return SUCCESS; + } + return ERROR; +} + +static void MoveWindow(miccntx *context, u32 micSeq) +{ + u32 shift; + + //Move window if seq greater than the middle of the window + if (micSeq > context->window) { + shift = (micSeq - context->window) >> 1; + + //Shift out old + if (shift < 32) + context->rx >>= shift; + else + context->rx = 0; + + context->window = micSeq; //Move window + } +} + +/*==============================================*/ +/*========== EMMH ROUTINES ====================*/ +/*==============================================*/ + +/* mic accumulate */ +#define MIC_ACCUM(val) \ + context->accum += (u64)(val) * context->coeff[coeff_position++]; + +static unsigned char aes_counter[16]; + +/* expand the key to fill the MMH coefficient array */ +static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, + struct crypto_cipher *tfm) +{ + /* take the keying material, expand if necessary, truncate at 16-bytes */ + /* run through AES counter mode to generate context->coeff[] */ + + int i,j; + u32 counter; + u8 *cipher, plain[16]; + + crypto_cipher_setkey(tfm, pkey, 16); + counter = 0; + for (i = 0; i < ARRAY_SIZE(context->coeff); ) { + aes_counter[15] = (u8)(counter >> 0); + aes_counter[14] = (u8)(counter >> 8); + aes_counter[13] = (u8)(counter >> 16); + aes_counter[12] = (u8)(counter >> 24); + counter++; + memcpy (plain, aes_counter, 16); + crypto_cipher_encrypt_one(tfm, plain, plain); + cipher = plain; + for (j = 0; (j < 16) && (i < ARRAY_SIZE(context->coeff)); ) { + context->coeff[i++] = ntohl(*(__be32 *)&cipher[j]); + j += 4; + } + } +} + +/* prepare for calculation of a new mic */ +static void emmh32_init(emmh32_context *context) +{ + /* prepare for new mic calculation */ + context->accum = 0; + context->position = 0; +} + +/* add some bytes to the mic calculation */ +static void emmh32_update(emmh32_context *context, u8 *pOctets, int len) +{ + int coeff_position, byte_position; + + if (len == 0) return; + + coeff_position = context->position >> 2; + + /* deal with partial 32-bit word left over from last update */ + byte_position = context->position & 3; + if (byte_position) { + /* have a partial word in part to deal with */ + do { + if (len == 0) return; + context->part.d8[byte_position++] = *pOctets++; + context->position++; + len--; + } while (byte_position < 4); + MIC_ACCUM(ntohl(context->part.d32)); + } + + /* deal with full 32-bit words */ + while (len >= 4) { + MIC_ACCUM(ntohl(*(__be32 *)pOctets)); + context->position += 4; + pOctets += 4; + len -= 4; + } + + /* deal with partial 32-bit word that will be left over from this update */ + byte_position = 0; + while (len > 0) { + context->part.d8[byte_position++] = *pOctets++; + context->position++; + len--; + } +} + +/* mask used to zero empty bytes for final partial word */ +static u32 mask32[4] = { 0x00000000L, 0xFF000000L, 0xFFFF0000L, 0xFFFFFF00L }; + +/* calculate the mic */ +static void emmh32_final(emmh32_context *context, u8 digest[4]) +{ + int coeff_position, byte_position; + u32 val; + + u64 sum, utmp; + s64 stmp; + + coeff_position = context->position >> 2; + + /* deal with partial 32-bit word left over from last update */ + byte_position = context->position & 3; + if (byte_position) { + /* have a partial word in part to deal with */ + val = ntohl(context->part.d32); + MIC_ACCUM(val & mask32[byte_position]); /* zero empty bytes */ + } + + /* reduce the accumulated u64 to a 32-bit MIC */ + sum = context->accum; + stmp = (sum & 0xffffffffLL) - ((sum >> 32) * 15); + utmp = (stmp & 0xffffffffLL) - ((stmp >> 32) * 15); + sum = utmp & 0xffffffffLL; + if (utmp > 0x10000000fLL) + sum -= 15; + + val = (u32)sum; + digest[0] = (val>>24) & 0xFF; + digest[1] = (val>>16) & 0xFF; + digest[2] = (val>>8) & 0xFF; + digest[3] = val & 0xFF; +} + +static int readBSSListRid(struct airo_info *ai, int first, + BSSListRid *list) +{ + Cmd cmd; + Resp rsp; + + if (first == 1) { + if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN; + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd=CMD_LISTBSS; + if (down_interruptible(&ai->sem)) + return -ERESTARTSYS; + ai->list_bss_task = current; + issuecommand(ai, &cmd, &rsp); + up(&ai->sem); + /* Let the command take effect */ + schedule_timeout_uninterruptible(3 * HZ); + ai->list_bss_task = NULL; + } + return PC4500_readrid(ai, first ? ai->bssListFirst : ai->bssListNext, + list, ai->bssListRidLen, 1); +} + +static int readWepKeyRid(struct airo_info *ai, WepKeyRid *wkr, int temp, int lock) +{ + return PC4500_readrid(ai, temp ? RID_WEP_TEMP : RID_WEP_PERM, + wkr, sizeof(*wkr), lock); +} + +static int writeWepKeyRid(struct airo_info *ai, WepKeyRid *wkr, int perm, int lock) +{ + int rc; + rc = PC4500_writerid(ai, RID_WEP_TEMP, wkr, sizeof(*wkr), lock); + if (rc!=SUCCESS) + airo_print_err(ai->dev->name, "WEP_TEMP set %x", rc); + if (perm) { + rc = PC4500_writerid(ai, RID_WEP_PERM, wkr, sizeof(*wkr), lock); + if (rc!=SUCCESS) + airo_print_err(ai->dev->name, "WEP_PERM set %x", rc); + } + return rc; +} + +static int readSsidRid(struct airo_info*ai, SsidRid *ssidr) +{ + return PC4500_readrid(ai, RID_SSID, ssidr, sizeof(*ssidr), 1); +} + +static int writeSsidRid(struct airo_info*ai, SsidRid *pssidr, int lock) +{ + return PC4500_writerid(ai, RID_SSID, pssidr, sizeof(*pssidr), lock); +} + +static int readConfigRid(struct airo_info *ai, int lock) +{ + int rc; + ConfigRid cfg; + + if (ai->config.len) + return SUCCESS; + + rc = PC4500_readrid(ai, RID_ACTUALCONFIG, &cfg, sizeof(cfg), lock); + if (rc != SUCCESS) + return rc; + + 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, int lock) +{ + ConfigRid cfgr; + + if (!test_bit (FLAG_COMMIT, &ai->flags)) + return SUCCESS; + + clear_bit (FLAG_COMMIT, &ai->flags); + clear_bit (FLAG_RESET, &ai->flags); + checkThrottle(ai); + cfgr = ai->config; + + if ((cfgr.opmode & MODE_CFG_MASK) == MODE_STA_IBSS) + set_bit(FLAG_ADHOC, &ai->flags); + else + clear_bit(FLAG_ADHOC, &ai->flags); + + return PC4500_writerid( ai, RID_CONFIG, &cfgr, sizeof(cfgr), lock); +} + +static int readStatusRid(struct airo_info *ai, StatusRid *statr, int lock) +{ + return PC4500_readrid(ai, RID_STATUS, statr, sizeof(*statr), lock); +} + +static int writeAPListRid(struct airo_info *ai, APListRid *aplr, int lock) +{ + return PC4500_writerid(ai, RID_APLIST, aplr, sizeof(*aplr), lock); +} + +static int readCapabilityRid(struct airo_info *ai, CapabilityRid *capr, int lock) +{ + return PC4500_readrid(ai, RID_CAPABILITIES, capr, sizeof(*capr), lock); +} + +static int readStatsRid(struct airo_info*ai, StatsRid *sr, int rid, int lock) +{ + return PC4500_readrid(ai, rid, sr, sizeof(*sr), lock); +} + +static void try_auto_wep(struct airo_info *ai) +{ + if (auto_wep && !test_bit(FLAG_RADIO_DOWN, &ai->flags)) { + ai->expires = RUN_AT(3*HZ); + wake_up_interruptible(&ai->thr_wait); + } +} + +static int airo_open(struct net_device *dev) { + struct airo_info *ai = dev->ml_priv; + int rc = 0; + + if (test_bit(FLAG_FLASHING, &ai->flags)) + 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 committed, do it now - Jean II */ + if (test_bit(FLAG_COMMIT, &ai->flags)) { + disable_MAC(ai, 1); + writeConfigRid(ai, 1); + } + + if (ai->wifidev != dev) { + clear_bit(JOB_DIE, &ai->jobs); + ai->airo_thread_task = kthread_run(airo_thread, dev, "%s", + dev->name); + if (IS_ERR(ai->airo_thread_task)) + return (int)PTR_ERR(ai->airo_thread_task); + + rc = request_irq(dev->irq, airo_interrupt, IRQF_SHARED, + dev->name, dev); + if (rc) { + airo_print_err(dev->name, + "register interrupt %d failed, rc %d", + dev->irq, rc); + set_bit(JOB_DIE, &ai->jobs); + kthread_stop(ai->airo_thread_task); + return rc; + } + + /* Power on the MAC controller (which may have been disabled) */ + clear_bit(FLAG_RADIO_DOWN, &ai->flags); + enable_interrupts(ai); + + try_auto_wep(ai); + } + enable_MAC(ai, 1); + + netif_start_queue(dev); + return 0; +} + +static netdev_tx_t mpi_start_xmit(struct sk_buff *skb, + struct net_device *dev) +{ + int npacks, pending; + unsigned long flags; + struct airo_info *ai = dev->ml_priv; + + if (!skb) { + airo_print_err(dev->name, "%s: skb == NULL!",__func__); + return NETDEV_TX_OK; + } + npacks = skb_queue_len (&ai->txq); + + if (npacks >= MAXTXQ - 1) { + netif_stop_queue (dev); + if (npacks > MAXTXQ) { + dev->stats.tx_fifo_errors++; + return NETDEV_TX_BUSY; + } + skb_queue_tail (&ai->txq, skb); + return NETDEV_TX_OK; + } + + spin_lock_irqsave(&ai->aux_lock, flags); + skb_queue_tail (&ai->txq, skb); + pending = test_bit(FLAG_PENDING_XMIT, &ai->flags); + spin_unlock_irqrestore(&ai->aux_lock,flags); + netif_wake_queue (dev); + + if (pending == 0) { + set_bit(FLAG_PENDING_XMIT, &ai->flags); + mpi_send_packet (dev); + } + return NETDEV_TX_OK; +} + +/* + * @mpi_send_packet + * + * Attempt to transmit a packet. Can be called from interrupt + * or transmit . return number of packets we tried to send + */ + +static int mpi_send_packet (struct net_device *dev) +{ + struct sk_buff *skb; + unsigned char *buffer; + s16 len; + __le16 *payloadLen; + struct airo_info *ai = dev->ml_priv; + u8 *sendbuf; + + /* get a packet to send */ + + if ((skb = skb_dequeue(&ai->txq)) == NULL) { + airo_print_err(dev->name, + "%s: Dequeue'd zero in send_packet()", + __func__); + return 0; + } + + /* check min length*/ + len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN; + buffer = skb->data; + + ai->txfids[0].tx_desc.offset = 0; + ai->txfids[0].tx_desc.valid = 1; + ai->txfids[0].tx_desc.eoc = 1; + ai->txfids[0].tx_desc.len =len+sizeof(WifiHdr); + +/* + * Magic, the cards firmware needs a length count (2 bytes) in the host buffer + * right after TXFID_HDR.The TXFID_HDR contains the status short so payloadlen + * is immediately after it. ------------------------------------------------ + * |TXFIDHDR+STATUS|PAYLOADLEN|802.3HDR|PACKETDATA| + * ------------------------------------------------ + */ + + memcpy(ai->txfids[0].virtual_host_addr, + (char *)&wifictlhdr8023, sizeof(wifictlhdr8023)); + + payloadLen = (__le16 *)(ai->txfids[0].virtual_host_addr + + sizeof(wifictlhdr8023)); + sendbuf = ai->txfids[0].virtual_host_addr + + sizeof(wifictlhdr8023) + 2 ; + + /* + * Firmware automatically puts 802 header on so + * we don't need to account for it in the length + */ + if (test_bit(FLAG_MIC_CAPABLE, &ai->flags) && ai->micstats.enabled && + (ntohs(((__be16 *)buffer)[6]) != 0x888E)) { + MICBuffer pMic; + + if (encapsulate(ai, (etherHead *)buffer, &pMic, len - sizeof(etherHead)) != SUCCESS) + return ERROR; + + *payloadLen = cpu_to_le16(len-sizeof(etherHead)+sizeof(pMic)); + ai->txfids[0].tx_desc.len += sizeof(pMic); + /* copy data into airo dma buffer */ + memcpy (sendbuf, buffer, sizeof(etherHead)); + buffer += sizeof(etherHead); + sendbuf += sizeof(etherHead); + memcpy (sendbuf, &pMic, sizeof(pMic)); + sendbuf += sizeof(pMic); + memcpy (sendbuf, buffer, len - sizeof(etherHead)); + } else { + *payloadLen = cpu_to_le16(len - sizeof(etherHead)); + + dev->trans_start = jiffies; + + /* copy data into airo dma buffer */ + memcpy(sendbuf, buffer, len); + } + + memcpy_toio(ai->txfids[0].card_ram_off, + &ai->txfids[0].tx_desc, sizeof(TxFid)); + + OUT4500(ai, EVACK, 8); + + dev_kfree_skb_any(skb); + return 1; +} + +static void get_tx_error(struct airo_info *ai, s32 fid) +{ + __le16 status; + + if (fid < 0) + status = ((WifiCtlHdr *)ai->txfids[0].virtual_host_addr)->ctlhdr.status; + else { + if (bap_setup(ai, ai->fids[fid] & 0xffff, 4, BAP0) != SUCCESS) + return; + bap_read(ai, &status, 2, BAP0); + } + if (le16_to_cpu(status) & 2) /* Too many retries */ + ai->dev->stats.tx_aborted_errors++; + if (le16_to_cpu(status) & 4) /* Transmit lifetime exceeded */ + ai->dev->stats.tx_heartbeat_errors++; + if (le16_to_cpu(status) & 8) /* Aid fail */ + { } + if (le16_to_cpu(status) & 0x10) /* MAC disabled */ + ai->dev->stats.tx_carrier_errors++; + if (le16_to_cpu(status) & 0x20) /* Association lost */ + { } + /* 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, (__le16 *) 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); + } +} + +static void airo_end_xmit(struct net_device *dev) { + u16 status; + int i; + struct airo_info *priv = dev->ml_priv; + struct sk_buff *skb = priv->xmit.skb; + int fid = priv->xmit.fid; + u32 *fids = priv->fids; + + clear_bit(JOB_XMIT, &priv->jobs); + clear_bit(FLAG_PENDING_XMIT, &priv->flags); + 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; + dev->stats.tx_window_errors++; + } + if (i < MAX_FIDS / 2) + netif_wake_queue(dev); + dev_kfree_skb(skb); +} + +static netdev_tx_t airo_start_xmit(struct sk_buff *skb, + struct net_device *dev) +{ + s16 len; + int i, j; + struct airo_info *priv = dev->ml_priv; + u32 *fids = priv->fids; + + if ( skb == NULL ) { + airo_print_err(dev->name, "%s: skb == NULL!", __func__); + return NETDEV_TX_OK; + } + + /* Find a vacant FID */ + for( i = 0; i < MAX_FIDS / 2 && (fids[i] & 0xffff0000); i++ ); + for( j = i + 1; j < MAX_FIDS / 2 && (fids[j] & 0xffff0000); j++ ); + + if ( j >= MAX_FIDS / 2 ) { + netif_stop_queue(dev); + + if (i == MAX_FIDS / 2) { + dev->stats.tx_fifo_errors++; + return NETDEV_TX_BUSY; + } + } + /* 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; + if (down_trylock(&priv->sem) != 0) { + set_bit(FLAG_PENDING_XMIT, &priv->flags); + netif_stop_queue(dev); + set_bit(JOB_XMIT, &priv->jobs); + wake_up_interruptible(&priv->thr_wait); + } else + airo_end_xmit(dev); + return NETDEV_TX_OK; +} + +static void airo_end_xmit11(struct net_device *dev) { + u16 status; + int i; + struct airo_info *priv = dev->ml_priv; + struct sk_buff *skb = priv->xmit11.skb; + int fid = priv->xmit11.fid; + u32 *fids = priv->fids; + + clear_bit(JOB_XMIT11, &priv->jobs); + clear_bit(FLAG_PENDING_XMIT11, &priv->flags); + 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; + dev->stats.tx_window_errors++; + } + if (i < MAX_FIDS) + netif_wake_queue(dev); + dev_kfree_skb(skb); +} + +static netdev_tx_t airo_start_xmit11(struct sk_buff *skb, + struct net_device *dev) +{ + s16 len; + int i, j; + struct airo_info *priv = dev->ml_priv; + u32 *fids = priv->fids; + + if (test_bit(FLAG_MPI, &priv->flags)) { + /* Not implemented yet for MPI350 */ + netif_stop_queue(dev); + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; + } + + if ( skb == NULL ) { + airo_print_err(dev->name, "%s: skb == NULL!", __func__); + return NETDEV_TX_OK; + } + + /* Find a vacant FID */ + for( i = MAX_FIDS / 2; i < MAX_FIDS && (fids[i] & 0xffff0000); i++ ); + for( j = i + 1; j < MAX_FIDS && (fids[j] & 0xffff0000); j++ ); + + if ( j >= MAX_FIDS ) { + netif_stop_queue(dev); + + if (i == MAX_FIDS) { + dev->stats.tx_fifo_errors++; + return NETDEV_TX_BUSY; + } + } + /* 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; + if (down_trylock(&priv->sem) != 0) { + set_bit(FLAG_PENDING_XMIT11, &priv->flags); + netif_stop_queue(dev); + set_bit(JOB_XMIT11, &priv->jobs); + wake_up_interruptible(&priv->thr_wait); + } else + airo_end_xmit11(dev); + return NETDEV_TX_OK; +} + +static void airo_read_stats(struct net_device *dev) +{ + struct airo_info *ai = dev->ml_priv; + StatsRid stats_rid; + __le32 *vals = stats_rid.vals; + + clear_bit(JOB_STATS, &ai->jobs); + if (ai->power.event) { + up(&ai->sem); + return; + } + readStatsRid(ai, &stats_rid, RID_STATS, 0); + up(&ai->sem); + + dev->stats.rx_packets = le32_to_cpu(vals[43]) + le32_to_cpu(vals[44]) + + le32_to_cpu(vals[45]); + dev->stats.tx_packets = le32_to_cpu(vals[39]) + le32_to_cpu(vals[40]) + + le32_to_cpu(vals[41]); + dev->stats.rx_bytes = le32_to_cpu(vals[92]); + dev->stats.tx_bytes = le32_to_cpu(vals[91]); + dev->stats.rx_errors = le32_to_cpu(vals[0]) + le32_to_cpu(vals[2]) + + le32_to_cpu(vals[3]) + le32_to_cpu(vals[4]); + dev->stats.tx_errors = le32_to_cpu(vals[42]) + + dev->stats.tx_fifo_errors; + dev->stats.multicast = le32_to_cpu(vals[43]); + dev->stats.collisions = le32_to_cpu(vals[89]); + + /* detailed rx_errors: */ + dev->stats.rx_length_errors = le32_to_cpu(vals[3]); + dev->stats.rx_crc_errors = le32_to_cpu(vals[4]); + dev->stats.rx_frame_errors = le32_to_cpu(vals[2]); + dev->stats.rx_fifo_errors = le32_to_cpu(vals[0]); +} + +static struct net_device_stats *airo_get_stats(struct net_device *dev) +{ + struct airo_info *local = dev->ml_priv; + + if (!test_bit(JOB_STATS, &local->jobs)) { + /* Get stats out of the card if available */ + if (down_trylock(&local->sem) != 0) { + set_bit(JOB_STATS, &local->jobs); + wake_up_interruptible(&local->thr_wait); + } else + airo_read_stats(dev); + } + + return &dev->stats; +} + +static void airo_set_promisc(struct airo_info *ai) { + Cmd cmd; + Resp rsp; + + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd=CMD_SETMODE; + clear_bit(JOB_PROMISC, &ai->jobs); + cmd.parm0=(ai->flags&IFF_PROMISC) ? PROMISC : NOPROMISC; + issuecommand(ai, &cmd, &rsp); + up(&ai->sem); +} + +static void airo_set_multicast_list(struct net_device *dev) { + struct airo_info *ai = dev->ml_priv; + + if ((dev->flags ^ ai->flags) & IFF_PROMISC) { + change_bit(FLAG_PROMISC, &ai->flags); + if (down_trylock(&ai->sem) != 0) { + set_bit(JOB_PROMISC, &ai->jobs); + wake_up_interruptible(&ai->thr_wait); + } else + airo_set_promisc(ai); + } + + if ((dev->flags&IFF_ALLMULTI) || !netdev_mc_empty(dev)) { + /* Turn on multicast. (Should be already setup...) */ + } +} + +static int airo_set_mac_address(struct net_device *dev, void *p) +{ + struct airo_info *ai = dev->ml_priv; + struct sockaddr *addr = p; + + readConfigRid(ai, 1); + memcpy (ai->config.macAddr, addr->sa_data, dev->addr_len); + set_bit (FLAG_COMMIT, &ai->flags); + disable_MAC(ai, 1); + writeConfigRid (ai, 1); + enable_MAC(ai, 1); + 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 LIST_HEAD(airo_devices); + +static void add_airo_dev(struct airo_info *ai) +{ + /* Upper layers already keep track of PCI devices, + * so we only need to remember our non-PCI cards. */ + if (!ai->pci) + list_add_tail(&ai->dev_list, &airo_devices); +} + +static void del_airo_dev(struct airo_info *ai) +{ + if (!ai->pci) + list_del(&ai->dev_list); +} + +static int airo_close(struct net_device *dev) { + struct airo_info *ai = dev->ml_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 */ + set_bit(FLAG_RADIO_DOWN, &ai->flags); + disable_MAC(ai, 1); +#endif + disable_interrupts( ai ); + + free_irq(dev->irq, dev); + + set_bit(JOB_DIE, &ai->jobs); + kthread_stop(ai->airo_thread_task); + } + return 0; +} + +void stop_airo_card( struct net_device *dev, int freeres ) +{ + struct airo_info *ai = dev->ml_priv; + + set_bit(FLAG_RADIO_DOWN, &ai->flags); + disable_MAC(ai, 1); + disable_interrupts(ai); + takedown_proc_entry( dev, ai ); + if (test_bit(FLAG_REGISTERED, &ai->flags)) { + unregister_netdev( dev ); + if (ai->wifidev) { + unregister_netdev(ai->wifidev); + free_netdev(ai->wifidev); + ai->wifidev = NULL; + } + clear_bit(FLAG_REGISTERED, &ai->flags); + } + /* + * Clean out tx queue + */ + if (test_bit(FLAG_MPI, &ai->flags) && !skb_queue_empty(&ai->txq)) { + struct sk_buff *skb = NULL; + for (;(skb = skb_dequeue(&ai->txq));) + dev_kfree_skb(skb); + } + + airo_networks_free (ai); + + kfree(ai->flash); + kfree(ai->rssi); + kfree(ai->SSID); + if (freeres) { + /* PCMCIA frees this stuff, so only for PCI and ISA */ + release_region( dev->base_addr, 64 ); + if (test_bit(FLAG_MPI, &ai->flags)) { + if (ai->pci) + mpi_unmap_card(ai->pci); + if (ai->pcimem) + iounmap(ai->pcimem); + if (ai->pciaux) + iounmap(ai->pciaux); + pci_free_consistent(ai->pci, PCI_SHARED_LEN, + ai->shared, ai->shared_dma); + } + } + crypto_free_cipher(ai->tfm); + del_airo_dev(ai); + free_netdev( dev ); +} + +EXPORT_SYMBOL(stop_airo_card); + +static int wll_header_parse(const struct sk_buff *skb, unsigned char *haddr) +{ + memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); + return ETH_ALEN; +} + +static void mpi_unmap_card(struct pci_dev *pci) +{ + unsigned long mem_start = pci_resource_start(pci, 1); + unsigned long mem_len = pci_resource_len(pci, 1); + unsigned long aux_start = pci_resource_start(pci, 2); + unsigned long aux_len = AUXMEMSIZE; + + release_mem_region(aux_start, aux_len); + release_mem_region(mem_start, mem_len); +} + +/************************************************************* + * This routine assumes that descriptors have been setup . + * Run at insmod time or after reset when the decriptors + * have been initialized . Returns 0 if all is well nz + * otherwise . Does not allocate memory but sets up card + * using previously allocated descriptors. + */ +static int mpi_init_descriptors (struct airo_info *ai) +{ + Cmd cmd; + Resp rsp; + int i; + int rc = SUCCESS; + + /* Alloc card RX descriptors */ + netif_stop_queue(ai->dev); + + memset(&rsp,0,sizeof(rsp)); + memset(&cmd,0,sizeof(cmd)); + + cmd.cmd = CMD_ALLOCATEAUX; + cmd.parm0 = FID_RX; + cmd.parm1 = (ai->rxfids[0].card_ram_off - ai->pciaux); + cmd.parm2 = MPI_MAX_FIDS; + rc=issuecommand(ai, &cmd, &rsp); + if (rc != SUCCESS) { + airo_print_err(ai->dev->name, "Couldn't allocate RX FID"); + return rc; + } + + for (i=0; i<MPI_MAX_FIDS; i++) { + memcpy_toio(ai->rxfids[i].card_ram_off, + &ai->rxfids[i].rx_desc, sizeof(RxFid)); + } + + /* Alloc card TX descriptors */ + + memset(&rsp,0,sizeof(rsp)); + memset(&cmd,0,sizeof(cmd)); + + cmd.cmd = CMD_ALLOCATEAUX; + cmd.parm0 = FID_TX; + cmd.parm1 = (ai->txfids[0].card_ram_off - ai->pciaux); + cmd.parm2 = MPI_MAX_FIDS; + + for (i=0; i<MPI_MAX_FIDS; i++) { + ai->txfids[i].tx_desc.valid = 1; + memcpy_toio(ai->txfids[i].card_ram_off, + &ai->txfids[i].tx_desc, sizeof(TxFid)); + } + ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */ + + rc=issuecommand(ai, &cmd, &rsp); + if (rc != SUCCESS) { + airo_print_err(ai->dev->name, "Couldn't allocate TX FID"); + return rc; + } + + /* Alloc card Rid descriptor */ + memset(&rsp,0,sizeof(rsp)); + memset(&cmd,0,sizeof(cmd)); + + cmd.cmd = CMD_ALLOCATEAUX; + cmd.parm0 = RID_RW; + cmd.parm1 = (ai->config_desc.card_ram_off - ai->pciaux); + cmd.parm2 = 1; /* Magic number... */ + rc=issuecommand(ai, &cmd, &rsp); + if (rc != SUCCESS) { + airo_print_err(ai->dev->name, "Couldn't allocate RID"); + return rc; + } + + memcpy_toio(ai->config_desc.card_ram_off, + &ai->config_desc.rid_desc, sizeof(Rid)); + + return rc; +} + +/* + * We are setting up three things here: + * 1) Map AUX memory for descriptors: Rid, TxFid, or RxFid. + * 2) Map PCI memory for issuing commands. + * 3) Allocate memory (shared) to send and receive ethernet frames. + */ +static int mpi_map_card(struct airo_info *ai, struct pci_dev *pci) +{ + unsigned long mem_start, mem_len, aux_start, aux_len; + int rc = -1; + int i; + dma_addr_t busaddroff; + unsigned char *vpackoff; + unsigned char __iomem *pciaddroff; + + mem_start = pci_resource_start(pci, 1); + mem_len = pci_resource_len(pci, 1); + aux_start = pci_resource_start(pci, 2); + aux_len = AUXMEMSIZE; + + if (!request_mem_region(mem_start, mem_len, DRV_NAME)) { + airo_print_err("", "Couldn't get region %x[%x]", + (int)mem_start, (int)mem_len); + goto out; + } + if (!request_mem_region(aux_start, aux_len, DRV_NAME)) { + airo_print_err("", "Couldn't get region %x[%x]", + (int)aux_start, (int)aux_len); + goto free_region1; + } + + ai->pcimem = ioremap(mem_start, mem_len); + if (!ai->pcimem) { + airo_print_err("", "Couldn't map region %x[%x]", + (int)mem_start, (int)mem_len); + goto free_region2; + } + ai->pciaux = ioremap(aux_start, aux_len); + if (!ai->pciaux) { + airo_print_err("", "Couldn't map region %x[%x]", + (int)aux_start, (int)aux_len); + goto free_memmap; + } + + /* Reserve PKTSIZE for each fid and 2K for the Rids */ + ai->shared = pci_alloc_consistent(pci, PCI_SHARED_LEN, &ai->shared_dma); + if (!ai->shared) { + airo_print_err("", "Couldn't alloc_consistent %d", + PCI_SHARED_LEN); + goto free_auxmap; + } + + /* + * Setup descriptor RX, TX, CONFIG + */ + busaddroff = ai->shared_dma; + pciaddroff = ai->pciaux + AUX_OFFSET; + vpackoff = ai->shared; + + /* RX descriptor setup */ + for(i = 0; i < MPI_MAX_FIDS; i++) { + ai->rxfids[i].pending = 0; + ai->rxfids[i].card_ram_off = pciaddroff; + ai->rxfids[i].virtual_host_addr = vpackoff; + ai->rxfids[i].rx_desc.host_addr = busaddroff; + ai->rxfids[i].rx_desc.valid = 1; + ai->rxfids[i].rx_desc.len = PKTSIZE; + ai->rxfids[i].rx_desc.rdy = 0; + + pciaddroff += sizeof(RxFid); + busaddroff += PKTSIZE; + vpackoff += PKTSIZE; + } + + /* TX descriptor setup */ + for(i = 0; i < MPI_MAX_FIDS; i++) { + ai->txfids[i].card_ram_off = pciaddroff; + ai->txfids[i].virtual_host_addr = vpackoff; + ai->txfids[i].tx_desc.valid = 1; + ai->txfids[i].tx_desc.host_addr = busaddroff; + memcpy(ai->txfids[i].virtual_host_addr, + &wifictlhdr8023, sizeof(wifictlhdr8023)); + + pciaddroff += sizeof(TxFid); + busaddroff += PKTSIZE; + vpackoff += PKTSIZE; + } + ai->txfids[i-1].tx_desc.eoc = 1; /* Last descriptor has EOC set */ + + /* Rid descriptor setup */ + ai->config_desc.card_ram_off = pciaddroff; + ai->config_desc.virtual_host_addr = vpackoff; + ai->config_desc.rid_desc.host_addr = busaddroff; + ai->ridbus = busaddroff; + ai->config_desc.rid_desc.rid = 0; + ai->config_desc.rid_desc.len = RIDSIZE; + ai->config_desc.rid_desc.valid = 1; + pciaddroff += sizeof(Rid); + busaddroff += RIDSIZE; + vpackoff += RIDSIZE; + + /* Tell card about descriptors */ + if (mpi_init_descriptors (ai) != SUCCESS) + goto free_shared; + + return 0; + free_shared: + pci_free_consistent(pci, PCI_SHARED_LEN, ai->shared, ai->shared_dma); + free_auxmap: + iounmap(ai->pciaux); + free_memmap: + iounmap(ai->pcimem); + free_region2: + release_mem_region(aux_start, aux_len); + free_region1: + release_mem_region(mem_start, mem_len); + out: + return rc; +} + +static const struct header_ops airo_header_ops = { + .parse = wll_header_parse, +}; + +static const struct net_device_ops airo11_netdev_ops = { + .ndo_open = airo_open, + .ndo_stop = airo_close, + .ndo_start_xmit = airo_start_xmit11, + .ndo_get_stats = airo_get_stats, + .ndo_set_mac_address = airo_set_mac_address, + .ndo_do_ioctl = airo_ioctl, + .ndo_change_mtu = airo_change_mtu, +}; + +static void wifi_setup(struct net_device *dev) +{ + dev->netdev_ops = &airo11_netdev_ops; + dev->header_ops = &airo_header_ops; + dev->wireless_handlers = &airo_handler_def; + + dev->type = ARPHRD_IEEE80211; + dev->hard_header_len = ETH_HLEN; + dev->mtu = AIRO_DEF_MTU; + dev->addr_len = ETH_ALEN; + dev->tx_queue_len = 100; + + eth_broadcast_addr(dev->broadcast); + + 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 = alloc_netdev(0, "wifi%d", NET_NAME_UNKNOWN, + wifi_setup); + if (!dev) + return NULL; + dev->ml_priv = ethdev->ml_priv; + dev->irq = ethdev->irq; + dev->base_addr = ethdev->base_addr; + dev->wireless_data = ethdev->wireless_data; + SET_NETDEV_DEV(dev, ethdev->dev.parent); + eth_hw_addr_inherit(dev, ethdev); + err = register_netdev(dev); + if (err<0) { + free_netdev(dev); + return NULL; + } + return dev; +} + +static int reset_card( struct net_device *dev , int lock) { + struct airo_info *ai = dev->ml_priv; + + if (lock && down_interruptible(&ai->sem)) + return -1; + waitbusy (ai); + OUT4500(ai,COMMAND,CMD_SOFTRESET); + msleep(200); + waitbusy (ai); + msleep(200); + if (lock) + up(&ai->sem); + return 0; +} + +#define AIRO_MAX_NETWORK_COUNT 64 +static int airo_networks_allocate(struct airo_info *ai) +{ + if (ai->networks) + return 0; + + ai->networks = kcalloc(AIRO_MAX_NETWORK_COUNT, sizeof(BSSListElement), + GFP_KERNEL); + if (!ai->networks) { + airo_print_warn("", "Out of memory allocating beacons"); + return -ENOMEM; + } + + return 0; +} + +static void airo_networks_free(struct airo_info *ai) +{ + kfree(ai->networks); + ai->networks = NULL; +} + +static void airo_networks_initialize(struct airo_info *ai) +{ + int i; + + INIT_LIST_HEAD(&ai->network_free_list); + INIT_LIST_HEAD(&ai->network_list); + for (i = 0; i < AIRO_MAX_NETWORK_COUNT; i++) + list_add_tail(&ai->networks[i].list, + &ai->network_free_list); +} + +static const struct net_device_ops airo_netdev_ops = { + .ndo_open = airo_open, + .ndo_stop = airo_close, + .ndo_start_xmit = airo_start_xmit, + .ndo_get_stats = airo_get_stats, + .ndo_set_rx_mode = airo_set_multicast_list, + .ndo_set_mac_address = airo_set_mac_address, + .ndo_do_ioctl = airo_ioctl, + .ndo_change_mtu = airo_change_mtu, + .ndo_validate_addr = eth_validate_addr, +}; + +static const struct net_device_ops mpi_netdev_ops = { + .ndo_open = airo_open, + .ndo_stop = airo_close, + .ndo_start_xmit = mpi_start_xmit, + .ndo_get_stats = airo_get_stats, + .ndo_set_rx_mode = airo_set_multicast_list, + .ndo_set_mac_address = airo_set_mac_address, + .ndo_do_ioctl = airo_ioctl, + .ndo_change_mtu = airo_change_mtu, + .ndo_validate_addr = eth_validate_addr, +}; + + +static struct net_device *_init_airo_card( unsigned short irq, int port, + int is_pcmcia, struct pci_dev *pci, + struct device *dmdev ) +{ + struct net_device *dev; + struct airo_info *ai; + int i, rc; + CapabilityRid cap_rid; + + /* Create the network device object. */ + dev = alloc_netdev(sizeof(*ai), "", NET_NAME_UNKNOWN, ether_setup); + if (!dev) { + airo_print_err("", "Couldn't alloc_etherdev"); + return NULL; + } + + ai = dev->ml_priv = netdev_priv(dev); + ai->wifidev = NULL; + ai->flags = 1 << FLAG_RADIO_DOWN; + ai->jobs = 0; + ai->dev = dev; + if (pci && (pci->device == 0x5000 || pci->device == 0xa504)) { + airo_print_dbg("", "Found an MPI350 card"); + set_bit(FLAG_MPI, &ai->flags); + } + spin_lock_init(&ai->aux_lock); + sema_init(&ai->sem, 1); + ai->config.len = 0; + ai->pci = pci; + init_waitqueue_head (&ai->thr_wait); + ai->tfm = NULL; + add_airo_dev(ai); + ai->APList.len = cpu_to_le16(sizeof(struct APListRid)); + + if (airo_networks_allocate (ai)) + goto err_out_free; + airo_networks_initialize (ai); + + skb_queue_head_init (&ai->txq); + + /* The Airo-specific entries in the device structure. */ + if (test_bit(FLAG_MPI,&ai->flags)) + dev->netdev_ops = &mpi_netdev_ops; + else + dev->netdev_ops = &airo_netdev_ops; + dev->wireless_handlers = &airo_handler_def; + ai->wireless_data.spy_data = &ai->spy_data; + dev->wireless_data = &ai->wireless_data; + dev->irq = irq; + dev->base_addr = port; + dev->priv_flags &= ~IFF_TX_SKB_SHARING; + + SET_NETDEV_DEV(dev, dmdev); + + reset_card (dev, 1); + msleep(400); + + if (!is_pcmcia) { + if (!request_region(dev->base_addr, 64, DRV_NAME)) { + rc = -EBUSY; + airo_print_err(dev->name, "Couldn't request region"); + goto err_out_nets; + } + } + + if (test_bit(FLAG_MPI,&ai->flags)) { + if (mpi_map_card(ai, pci)) { + airo_print_err("", "Could not map memory"); + goto err_out_res; + } + } + + if (probe) { + if (setup_card(ai, dev->dev_addr, 1) != SUCCESS) { + airo_print_err(dev->name, "MAC could not be enabled" ); + rc = -EIO; + goto err_out_map; + } + } else if (!test_bit(FLAG_MPI,&ai->flags)) { + ai->bap_read = fast_bap_read; + set_bit(FLAG_FLASHING, &ai->flags); + } + + strcpy(dev->name, "eth%d"); + rc = register_netdev(dev); + if (rc) { + airo_print_err(dev->name, "Couldn't register_netdev"); + goto err_out_map; + } + ai->wifidev = init_wifidev(ai, dev); + if (!ai->wifidev) + goto err_out_reg; + + rc = readCapabilityRid(ai, &cap_rid, 1); + if (rc != SUCCESS) { + rc = -EIO; + goto err_out_wifi; + } + /* WEP capability discovery */ + ai->wep_capable = (cap_rid.softCap & cpu_to_le16(0x02)) ? 1 : 0; + ai->max_wep_idx = (cap_rid.softCap & cpu_to_le16(0x80)) ? 3 : 0; + + airo_print_info(dev->name, "Firmware version %x.%x.%02d", + ((le16_to_cpu(cap_rid.softVer) >> 8) & 0xF), + (le16_to_cpu(cap_rid.softVer) & 0xFF), + le16_to_cpu(cap_rid.softSubVer)); + + /* Test for WPA support */ + /* Only firmware versions 5.30.17 or better can do WPA */ + if (le16_to_cpu(cap_rid.softVer) > 0x530 + || (le16_to_cpu(cap_rid.softVer) == 0x530 + && le16_to_cpu(cap_rid.softSubVer) >= 17)) { + airo_print_info(ai->dev->name, "WPA supported."); + + set_bit(FLAG_WPA_CAPABLE, &ai->flags); + ai->bssListFirst = RID_WPA_BSSLISTFIRST; + ai->bssListNext = RID_WPA_BSSLISTNEXT; + ai->bssListRidLen = sizeof(BSSListRid); + } else { + airo_print_info(ai->dev->name, "WPA unsupported with firmware " + "versions older than 5.30.17."); + + ai->bssListFirst = RID_BSSLISTFIRST; + ai->bssListNext = RID_BSSLISTNEXT; + ai->bssListRidLen = sizeof(BSSListRid) - sizeof(BSSListRidExtra); + } + + set_bit(FLAG_REGISTERED,&ai->flags); + airo_print_info(dev->name, "MAC enabled %pM", dev->dev_addr); + + /* Allocate the transmit buffers */ + if (probe && !test_bit(FLAG_MPI,&ai->flags)) + for( i = 0; i < MAX_FIDS; i++ ) + ai->fids[i] = transmit_allocate(ai,AIRO_DEF_MTU,i>=MAX_FIDS/2); + + if (setup_proc_entry(dev, dev->ml_priv) < 0) + goto err_out_wifi; + + return dev; + +err_out_wifi: + unregister_netdev(ai->wifidev); + free_netdev(ai->wifidev); +err_out_reg: + unregister_netdev(dev); +err_out_map: + if (test_bit(FLAG_MPI,&ai->flags) && pci) { + pci_free_consistent(pci, PCI_SHARED_LEN, ai->shared, ai->shared_dma); + iounmap(ai->pciaux); + iounmap(ai->pcimem); + mpi_unmap_card(ai->pci); + } +err_out_res: + if (!is_pcmcia) + release_region( dev->base_addr, 64 ); +err_out_nets: + airo_networks_free(ai); +err_out_free: + del_airo_dev(ai); + free_netdev(dev); + return NULL; +} + +struct net_device *init_airo_card( unsigned short irq, int port, int is_pcmcia, + struct device *dmdev) +{ + return _init_airo_card ( irq, port, is_pcmcia, NULL, dmdev); +} + +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) == 0) + OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY); + } + return delay < 10000; +} + +int reset_airo_card( struct net_device *dev ) +{ + int i; + struct airo_info *ai = dev->ml_priv; + + if (reset_card (dev, 1)) + return -1; + + if ( setup_card(ai, dev->dev_addr, 1 ) != SUCCESS ) { + airo_print_err(dev->name, "MAC could not be enabled"); + return -1; + } + airo_print_info(dev->name, "MAC enabled %pM", dev->dev_addr); + /* Allocate the transmit buffers if needed */ + if (!test_bit(FLAG_MPI,&ai->flags)) + for( i = 0; i < MAX_FIDS; i++ ) + ai->fids[i] = transmit_allocate (ai,AIRO_DEF_MTU,i>=MAX_FIDS/2); + + enable_interrupts( ai ); + netif_wake_queue(dev); + return 0; +} + +EXPORT_SYMBOL(reset_airo_card); + +static void airo_send_event(struct net_device *dev) { + struct airo_info *ai = dev->ml_priv; + union iwreq_data wrqu; + StatusRid status_rid; + + clear_bit(JOB_EVENT, &ai->jobs); + PC4500_readrid(ai, RID_STATUS, &status_rid, sizeof(status_rid), 0); + 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); +} + +static void airo_process_scan_results (struct airo_info *ai) { + union iwreq_data wrqu; + BSSListRid bss; + int rc; + BSSListElement * loop_net; + BSSListElement * tmp_net; + + /* Blow away current list of scan results */ + list_for_each_entry_safe (loop_net, tmp_net, &ai->network_list, list) { + list_move_tail (&loop_net->list, &ai->network_free_list); + /* Don't blow away ->list, just BSS data */ + memset (loop_net, 0, sizeof (loop_net->bss)); + } + + /* Try to read the first entry of the scan result */ + rc = PC4500_readrid(ai, ai->bssListFirst, &bss, ai->bssListRidLen, 0); + if((rc) || (bss.index == cpu_to_le16(0xffff))) { + /* No scan results */ + goto out; + } + + /* Read and parse all entries */ + tmp_net = NULL; + while((!rc) && (bss.index != cpu_to_le16(0xffff))) { + /* Grab a network off the free list */ + if (!list_empty(&ai->network_free_list)) { + tmp_net = list_entry(ai->network_free_list.next, + BSSListElement, list); + list_del(ai->network_free_list.next); + } + + if (tmp_net != NULL) { + memcpy(tmp_net, &bss, sizeof(tmp_net->bss)); + list_add_tail(&tmp_net->list, &ai->network_list); + tmp_net = NULL; + } + + /* Read next entry */ + rc = PC4500_readrid(ai, ai->bssListNext, + &bss, ai->bssListRidLen, 0); + } + +out: + /* write APList back (we cleared it in airo_set_scan) */ + disable_MAC(ai, 2); + writeAPListRid(ai, &ai->APList, 0); + enable_MAC(ai, 0); + + ai->scan_timeout = 0; + clear_bit(JOB_SCAN_RESULTS, &ai->jobs); + up(&ai->sem); + + /* 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(ai->dev, SIOCGIWSCAN, &wrqu, NULL); +} + +static int airo_thread(void *data) { + struct net_device *dev = data; + struct airo_info *ai = dev->ml_priv; + int locked; + + set_freezable(); + while(1) { + /* make swsusp happy with our thread */ + try_to_freeze(); + + if (test_bit(JOB_DIE, &ai->jobs)) + break; + + if (ai->jobs) { + locked = down_interruptible(&ai->sem); + } else { + wait_queue_t wait; + + init_waitqueue_entry(&wait, current); + add_wait_queue(&ai->thr_wait, &wait); + for (;;) { + set_current_state(TASK_INTERRUPTIBLE); + if (ai->jobs) + break; + if (ai->expires || ai->scan_timeout) { + if (ai->scan_timeout && + time_after_eq(jiffies,ai->scan_timeout)){ + set_bit(JOB_SCAN_RESULTS, &ai->jobs); + break; + } else if (ai->expires && + time_after_eq(jiffies,ai->expires)){ + set_bit(JOB_AUTOWEP, &ai->jobs); + break; + } + if (!kthread_should_stop() && + !freezing(current)) { + unsigned long wake_at; + if (!ai->expires || !ai->scan_timeout) { + wake_at = max(ai->expires, + ai->scan_timeout); + } else { + wake_at = min(ai->expires, + ai->scan_timeout); + } + schedule_timeout(wake_at - jiffies); + continue; + } + } else if (!kthread_should_stop() && + !freezing(current)) { + schedule(); + continue; + } + break; + } + current->state = TASK_RUNNING; + remove_wait_queue(&ai->thr_wait, &wait); + locked = 1; + } + + if (locked) + continue; + + if (test_bit(JOB_DIE, &ai->jobs)) { + up(&ai->sem); + break; + } + + if (ai->power.event || test_bit(FLAG_FLASHING, &ai->flags)) { + up(&ai->sem); + continue; + } + + if (test_bit(JOB_XMIT, &ai->jobs)) + airo_end_xmit(dev); + else if (test_bit(JOB_XMIT11, &ai->jobs)) + airo_end_xmit11(dev); + else if (test_bit(JOB_STATS, &ai->jobs)) + airo_read_stats(dev); + else if (test_bit(JOB_WSTATS, &ai->jobs)) + airo_read_wireless_stats(ai); + else if (test_bit(JOB_PROMISC, &ai->jobs)) + airo_set_promisc(ai); + else if (test_bit(JOB_MIC, &ai->jobs)) + micinit(ai); + else if (test_bit(JOB_EVENT, &ai->jobs)) + airo_send_event(dev); + else if (test_bit(JOB_AUTOWEP, &ai->jobs)) + timer_func(dev); + else if (test_bit(JOB_SCAN_RESULTS, &ai->jobs)) + airo_process_scan_results(ai); + else /* Shouldn't get here, but we make sure to unlock */ + up(&ai->sem); + } + + return 0; +} + +static int header_len(__le16 ctl) +{ + u16 fc = le16_to_cpu(ctl); + switch (fc & 0xc) { + case 4: + if ((fc & 0xe0) == 0xc0) + return 10; /* one-address control packet */ + return 16; /* two-address control packet */ + case 8: + if ((fc & 0x300) == 0x300) + return 30; /* WDS packet */ + } + return 24; +} + +static void airo_handle_cisco_mic(struct airo_info *ai) +{ + if (test_bit(FLAG_MIC_CAPABLE, &ai->flags)) { + set_bit(JOB_MIC, &ai->jobs); + wake_up_interruptible(&ai->thr_wait); + } +} + +/* Airo Status codes */ +#define STAT_NOBEACON 0x8000 /* Loss of sync - missed beacons */ +#define STAT_MAXRETRIES 0x8001 /* Loss of sync - max retries */ +#define STAT_MAXARL 0x8002 /* Loss of sync - average retry level exceeded*/ +#define STAT_FORCELOSS 0x8003 /* Loss of sync - host request */ +#define STAT_TSFSYNC 0x8004 /* Loss of sync - TSF synchronization */ +#define STAT_DEAUTH 0x8100 /* low byte is 802.11 reason code */ +#define STAT_DISASSOC 0x8200 /* low byte is 802.11 reason code */ +#define STAT_ASSOC_FAIL 0x8400 /* low byte is 802.11 reason code */ +#define STAT_AUTH_FAIL 0x0300 /* low byte is 802.11 reason code */ +#define STAT_ASSOC 0x0400 /* Associated */ +#define STAT_REASSOC 0x0600 /* Reassociated? Only on firmware >= 5.30.17 */ + +static void airo_print_status(const char *devname, u16 status) +{ + u8 reason = status & 0xFF; + + switch (status & 0xFF00) { + case STAT_NOBEACON: + switch (status) { + case STAT_NOBEACON: + airo_print_dbg(devname, "link lost (missed beacons)"); + break; + case STAT_MAXRETRIES: + case STAT_MAXARL: + airo_print_dbg(devname, "link lost (max retries)"); + break; + case STAT_FORCELOSS: + airo_print_dbg(devname, "link lost (local choice)"); + break; + case STAT_TSFSYNC: + airo_print_dbg(devname, "link lost (TSF sync lost)"); + break; + default: + airo_print_dbg(devname, "unknown status %x\n", status); + break; + } + break; + case STAT_DEAUTH: + airo_print_dbg(devname, "deauthenticated (reason: %d)", reason); + break; + case STAT_DISASSOC: + airo_print_dbg(devname, "disassociated (reason: %d)", reason); + break; + case STAT_ASSOC_FAIL: + airo_print_dbg(devname, "association failed (reason: %d)", + reason); + break; + case STAT_AUTH_FAIL: + airo_print_dbg(devname, "authentication failed (reason: %d)", + reason); + break; + case STAT_ASSOC: + case STAT_REASSOC: + break; + default: + airo_print_dbg(devname, "unknown status %x\n", status); + break; + } +} + +static void airo_handle_link(struct airo_info *ai) +{ + union iwreq_data wrqu; + int scan_forceloss = 0; + u16 status; + + /* Get new status and acknowledge the link change */ + status = le16_to_cpu(IN4500(ai, LINKSTAT)); + OUT4500(ai, EVACK, EV_LINK); + + if ((status == STAT_FORCELOSS) && (ai->scan_timeout > 0)) + scan_forceloss = 1; + + airo_print_status(ai->dev->name, status); + + if ((status == STAT_ASSOC) || (status == STAT_REASSOC)) { + if (auto_wep) + ai->expires = 0; + if (ai->list_bss_task) + wake_up_process(ai->list_bss_task); + set_bit(FLAG_UPDATE_UNI, &ai->flags); + set_bit(FLAG_UPDATE_MULTI, &ai->flags); + + if (down_trylock(&ai->sem) != 0) { + set_bit(JOB_EVENT, &ai->jobs); + wake_up_interruptible(&ai->thr_wait); + } else + airo_send_event(ai->dev); + netif_carrier_on(ai->dev); + } else if (!scan_forceloss) { + if (auto_wep && !ai->expires) { + ai->expires = RUN_AT(3*HZ); + wake_up_interruptible(&ai->thr_wait); + } + + /* Send event to user space */ + eth_zero_addr(wrqu.ap_addr.sa_data); + wrqu.ap_addr.sa_family = ARPHRD_ETHER; + wireless_send_event(ai->dev, SIOCGIWAP, &wrqu, NULL); + netif_carrier_off(ai->dev); + } else { + netif_carrier_off(ai->dev); + } +} + +static void airo_handle_rx(struct airo_info *ai) +{ + struct sk_buff *skb = NULL; + __le16 fc, v, *buffer, tmpbuf[4]; + u16 len, hdrlen = 0, gap, fid; + struct rx_hdr hdr; + int success = 0; + + if (test_bit(FLAG_MPI, &ai->flags)) { + if (test_bit(FLAG_802_11, &ai->flags)) + mpi_receive_802_11(ai); + else + mpi_receive_802_3(ai); + OUT4500(ai, EVACK, EV_RX); + return; + } + + fid = IN4500(ai, RXFID); + + /* Get the packet length */ + if (test_bit(FLAG_802_11, &ai->flags)) { + bap_setup (ai, fid, 4, BAP0); + bap_read (ai, (__le16*)&hdr, sizeof(hdr), BAP0); + /* Bad CRC. Ignore packet */ + if (le16_to_cpu(hdr.status) & 2) + hdr.len = 0; + if (ai->wifidev == NULL) + hdr.len = 0; + } else { + bap_setup(ai, fid, 0x36, BAP0); + bap_read(ai, &hdr.len, 2, BAP0); + } + len = le16_to_cpu(hdr.len); + + if (len > AIRO_DEF_MTU) { + airo_print_err(ai->dev->name, "Bad size %d", len); + goto done; + } + if (len == 0) + goto done; + + if (test_bit(FLAG_802_11, &ai->flags)) { + bap_read(ai, &fc, sizeof (fc), BAP0); + hdrlen = header_len(fc); + } else + hdrlen = ETH_ALEN * 2; + + skb = dev_alloc_skb(len + hdrlen + 2 + 2); + if (!skb) { + ai->dev->stats.rx_dropped++; + goto done; + } + + skb_reserve(skb, 2); /* This way the IP header is aligned */ + buffer = (__le16 *) skb_put(skb, len + hdrlen); + if (test_bit(FLAG_802_11, &ai->flags)) { + buffer[0] = fc; + bap_read(ai, buffer + 1, hdrlen - 2, BAP0); + if (hdrlen == 24) + bap_read(ai, tmpbuf, 6, BAP0); + + bap_read(ai, &v, sizeof(v), BAP0); + gap = le16_to_cpu(v); + if (gap) { + if (gap <= 8) { + bap_read(ai, tmpbuf, gap, BAP0); + } else { + airo_print_err(ai->dev->name, "gaplen too " + "big. Problems will follow..."); + } + } + bap_read(ai, buffer + hdrlen/2, len, BAP0); + } else { + MICBuffer micbuf; + + bap_read(ai, buffer, ETH_ALEN * 2, BAP0); + if (ai->micstats.enabled) { + bap_read(ai, (__le16 *) &micbuf, sizeof (micbuf), BAP0); + if (ntohs(micbuf.typelen) > 0x05DC) + bap_setup(ai, fid, 0x44, BAP0); + else { + if (len <= sizeof (micbuf)) { + dev_kfree_skb_irq(skb); + goto done; + } + + len -= sizeof(micbuf); + skb_trim(skb, len + hdrlen); + } + } + + bap_read(ai, buffer + ETH_ALEN, len, BAP0); + if (decapsulate(ai, &micbuf, (etherHead*) buffer, len)) + dev_kfree_skb_irq (skb); + else + success = 1; + } + +#ifdef WIRELESS_SPY + if (success && (ai->spy_data.spy_number > 0)) { + char *sa; + struct iw_quality wstats; + + /* Prepare spy data : addr + qual */ + if (!test_bit(FLAG_802_11, &ai->flags)) { + sa = (char *) buffer + 6; + bap_setup(ai, fid, 8, BAP0); + bap_read(ai, (__le16 *) hdr.rssi, 2, BAP0); + } else + sa = (char *) buffer + 10; + wstats.qual = hdr.rssi[0]; + if (ai->rssi) + wstats.level = 0x100 - ai->rssi[hdr.rssi[1]].rssidBm; + else + wstats.level = (hdr.rssi[1] + 321) / 2; + wstats.noise = ai->wstats.qual.noise; + wstats.updated = IW_QUAL_LEVEL_UPDATED + | IW_QUAL_QUAL_UPDATED + | IW_QUAL_DBM; + /* Update spy records */ + wireless_spy_update(ai->dev, sa, &wstats); + } +#endif /* WIRELESS_SPY */ + +done: + OUT4500(ai, EVACK, EV_RX); + + if (success) { + if (test_bit(FLAG_802_11, &ai->flags)) { + skb_reset_mac_header(skb); + skb->pkt_type = PACKET_OTHERHOST; + skb->dev = ai->wifidev; + skb->protocol = htons(ETH_P_802_2); + } else + skb->protocol = eth_type_trans(skb, ai->dev); + skb->ip_summed = CHECKSUM_NONE; + + netif_rx(skb); + } +} + +static void airo_handle_tx(struct airo_info *ai, u16 status) +{ + int i, len = 0, index = -1; + u16 fid; + + if (test_bit(FLAG_MPI, &ai->flags)) { + unsigned long flags; + + if (status & EV_TXEXC) + get_tx_error(ai, -1); + + spin_lock_irqsave(&ai->aux_lock, flags); + if (!skb_queue_empty(&ai->txq)) { + spin_unlock_irqrestore(&ai->aux_lock,flags); + mpi_send_packet(ai->dev); + } else { + clear_bit(FLAG_PENDING_XMIT, &ai->flags); + spin_unlock_irqrestore(&ai->aux_lock,flags); + netif_wake_queue(ai->dev); + } + OUT4500(ai, EVACK, status & (EV_TX | EV_TXCPY | EV_TXEXC)); + return; + } + + fid = IN4500(ai, TXCOMPLFID); + + for(i = 0; i < MAX_FIDS; i++) { + if ((ai->fids[i] & 0xffff) == fid) { + len = ai->fids[i] >> 16; + index = i; + } + } + + if (index != -1) { + if (status & EV_TXEXC) + get_tx_error(ai, index); + + OUT4500(ai, EVACK, status & (EV_TX | EV_TXEXC)); + + /* Set up to be used again */ + ai->fids[index] &= 0xffff; + if (index < MAX_FIDS / 2) { + if (!test_bit(FLAG_PENDING_XMIT, &ai->flags)) + netif_wake_queue(ai->dev); + } else { + if (!test_bit(FLAG_PENDING_XMIT11, &ai->flags)) + netif_wake_queue(ai->wifidev); + } + } else { + OUT4500(ai, EVACK, status & (EV_TX | EV_TXCPY | EV_TXEXC)); + airo_print_err(ai->dev->name, "Unallocated FID was used to xmit"); + } +} + +static irqreturn_t airo_interrupt(int irq, void *dev_id) +{ + struct net_device *dev = dev_id; + u16 status, savedInterrupts = 0; + struct airo_info *ai = dev->ml_priv; + int handled = 0; + + if (!netif_device_present(dev)) + return IRQ_NONE; + + for (;;) { + status = IN4500(ai, EVSTAT); + if (!(status & STATUS_INTS) || (status == 0xffff)) + break; + + handled = 1; + + if (status & EV_AWAKE) { + OUT4500(ai, EVACK, EV_AWAKE); + OUT4500(ai, EVACK, EV_AWAKE); + } + + if (!savedInterrupts) { + savedInterrupts = IN4500(ai, EVINTEN); + OUT4500(ai, EVINTEN, 0); + } + + if (status & EV_MIC) { + OUT4500(ai, EVACK, EV_MIC); + airo_handle_cisco_mic(ai); + } + + if (status & EV_LINK) { + /* Link status changed */ + airo_handle_link(ai); + } + + /* Check to see if there is something to receive */ + if (status & EV_RX) + airo_handle_rx(ai); + + /* Check to see if a packet has been transmitted */ + if (status & (EV_TX | EV_TXCPY | EV_TXEXC)) + airo_handle_tx(ai, status); + + if ( status & ~STATUS_INTS & ~IGNORE_INTS ) { + airo_print_warn(ai->dev->name, "Got weird status %x", + status & ~STATUS_INTS & ~IGNORE_INTS ); + } + } + + if (savedInterrupts) + OUT4500(ai, EVINTEN, savedInterrupts); + + return IRQ_RETVAL(handled); +} + +/* + * 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 (test_bit(FLAG_MPI,&ai->flags)) + reg <<= 1; + 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 (test_bit(FLAG_MPI,&ai->flags)) + reg <<= 1; + 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, int lock) +{ + int rc; + Cmd cmd; + Resp rsp; + + /* 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_MASK) return SUCCESS; + + if (lock && down_interruptible(&ai->sem)) + return -ERESTARTSYS; + + if (!test_bit(FLAG_ENABLED, &ai->flags)) { + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd = MAC_ENABLE; + rc = issuecommand(ai, &cmd, &rsp); + if (rc == SUCCESS) + set_bit(FLAG_ENABLED, &ai->flags); + } else + rc = SUCCESS; + + if (lock) + up(&ai->sem); + + if (rc) + airo_print_err(ai->dev->name, "Cannot enable MAC"); + else if ((rsp.status & 0xFF00) != 0) { + airo_print_err(ai->dev->name, "Bad MAC enable reason=%x, " + "rid=%x, offset=%d", rsp.rsp0, rsp.rsp1, rsp.rsp2); + rc = ERROR; + } + return rc; +} + +static void disable_MAC( struct airo_info *ai, int lock ) { + Cmd cmd; + Resp rsp; + + if (lock == 1 && down_interruptible(&ai->sem)) + return; + + if (test_bit(FLAG_ENABLED, &ai->flags)) { + if (lock != 2) /* lock == 2 means don't disable carrier */ + netif_carrier_off(ai->dev); + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd = MAC_DISABLE; // disable in case already enabled + issuecommand(ai, &cmd, &rsp); + clear_bit(FLAG_ENABLED, &ai->flags); + } + if (lock == 1) + up(&ai->sem); +} + +static void enable_interrupts( struct airo_info *ai ) { + /* Enable the interrupts */ + OUT4500( ai, EVINTEN, STATUS_INTS ); +} + +static void disable_interrupts( struct airo_info *ai ) { + OUT4500( ai, EVINTEN, 0 ); +} + +static void mpi_receive_802_3(struct airo_info *ai) +{ + RxFid rxd; + int len = 0; + struct sk_buff *skb; + char *buffer; + int off = 0; + MICBuffer micbuf; + + memcpy_fromio(&rxd, ai->rxfids[0].card_ram_off, sizeof(rxd)); + /* Make sure we got something */ + if (rxd.rdy && rxd.valid == 0) { + len = rxd.len + 12; + if (len < 12 || len > 2048) + goto badrx; + + skb = dev_alloc_skb(len); + if (!skb) { + ai->dev->stats.rx_dropped++; + goto badrx; + } + buffer = skb_put(skb,len); + memcpy(buffer, ai->rxfids[0].virtual_host_addr, ETH_ALEN * 2); + if (ai->micstats.enabled) { + memcpy(&micbuf, + ai->rxfids[0].virtual_host_addr + ETH_ALEN * 2, + sizeof(micbuf)); + if (ntohs(micbuf.typelen) <= 0x05DC) { + if (len <= sizeof(micbuf) + ETH_ALEN * 2) + goto badmic; + + off = sizeof(micbuf); + skb_trim (skb, len - off); + } + } + memcpy(buffer + ETH_ALEN * 2, + ai->rxfids[0].virtual_host_addr + ETH_ALEN * 2 + off, + len - ETH_ALEN * 2 - off); + if (decapsulate (ai, &micbuf, (etherHead*)buffer, len - off - ETH_ALEN * 2)) { +badmic: + dev_kfree_skb_irq (skb); + goto badrx; + } +#ifdef WIRELESS_SPY + if (ai->spy_data.spy_number > 0) { + char *sa; + struct iw_quality wstats; + /* Prepare spy data : addr + qual */ + sa = buffer + ETH_ALEN; + wstats.qual = 0; /* XXX Where do I get that info from ??? */ + wstats.level = 0; + wstats.updated = 0; + /* Update spy records */ + wireless_spy_update(ai->dev, sa, &wstats); + } +#endif /* WIRELESS_SPY */ + + skb->ip_summed = CHECKSUM_NONE; + skb->protocol = eth_type_trans(skb, ai->dev); + netif_rx(skb); + } +badrx: + if (rxd.valid == 0) { + rxd.valid = 1; + rxd.rdy = 0; + rxd.len = PKTSIZE; + memcpy_toio(ai->rxfids[0].card_ram_off, &rxd, sizeof(rxd)); + } +} + +static void mpi_receive_802_11(struct airo_info *ai) +{ + RxFid rxd; + struct sk_buff *skb = NULL; + u16 len, hdrlen = 0; + __le16 fc; + struct rx_hdr hdr; + u16 gap; + u16 *buffer; + char *ptr = ai->rxfids[0].virtual_host_addr + 4; + + memcpy_fromio(&rxd, ai->rxfids[0].card_ram_off, sizeof(rxd)); + memcpy ((char *)&hdr, ptr, sizeof(hdr)); + ptr += sizeof(hdr); + /* Bad CRC. Ignore packet */ + if (le16_to_cpu(hdr.status) & 2) + hdr.len = 0; + if (ai->wifidev == NULL) + hdr.len = 0; + len = le16_to_cpu(hdr.len); + if (len > AIRO_DEF_MTU) { + airo_print_err(ai->dev->name, "Bad size %d", len); + goto badrx; + } + if (len == 0) + goto badrx; + + fc = get_unaligned((__le16 *)ptr); + hdrlen = header_len(fc); + + skb = dev_alloc_skb( len + hdrlen + 2 ); + if ( !skb ) { + ai->dev->stats.rx_dropped++; + goto badrx; + } + buffer = (u16*)skb_put (skb, len + hdrlen); + memcpy ((char *)buffer, ptr, hdrlen); + ptr += hdrlen; + if (hdrlen == 24) + ptr += 6; + gap = get_unaligned_le16(ptr); + ptr += sizeof(__le16); + if (gap) { + if (gap <= 8) + ptr += gap; + else + airo_print_err(ai->dev->name, + "gaplen too big. Problems will follow..."); + } + memcpy ((char *)buffer + hdrlen, ptr, len); + ptr += len; +#ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */ + if (ai->spy_data.spy_number > 0) { + char *sa; + struct iw_quality wstats; + /* Prepare spy data : addr + qual */ + sa = (char*)buffer + 10; + wstats.qual = hdr.rssi[0]; + if (ai->rssi) + wstats.level = 0x100 - ai->rssi[hdr.rssi[1]].rssidBm; + else + wstats.level = (hdr.rssi[1] + 321) / 2; + wstats.noise = ai->wstats.qual.noise; + wstats.updated = IW_QUAL_QUAL_UPDATED + | IW_QUAL_LEVEL_UPDATED + | IW_QUAL_DBM; + /* Update spy records */ + wireless_spy_update(ai->dev, sa, &wstats); + } +#endif /* IW_WIRELESS_SPY */ + skb_reset_mac_header(skb); + skb->pkt_type = PACKET_OTHERHOST; + skb->dev = ai->wifidev; + skb->protocol = htons(ETH_P_802_2); + skb->ip_summed = CHECKSUM_NONE; + netif_rx( skb ); + +badrx: + if (rxd.valid == 0) { + rxd.valid = 1; + rxd.rdy = 0; + rxd.len = PKTSIZE; + memcpy_toio(ai->rxfids[0].card_ram_off, &rxd, sizeof(rxd)); + } +} + +static inline void set_auth_type(struct airo_info *local, int auth_type) +{ + local->config.authType = auth_type; + /* Cache the last auth type used (of AUTH_OPEN and AUTH_ENCRYPT). + * Used by airo_set_auth() + */ + if (auth_type == AUTH_OPEN || auth_type == AUTH_ENCRYPT) + local->last_auth = auth_type; +} + +static u16 setup_card(struct airo_info *ai, u8 *mac, int lock) +{ + Cmd cmd; + Resp rsp; + int status; + SsidRid mySsid; + __le16 lastindex; + WepKeyRid wkr; + int rc; + + memset( &mySsid, 0, sizeof( mySsid ) ); + 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 (lock && down_interruptible(&ai->sem)) + return ERROR; + if ( issuecommand( ai, &cmd, &rsp ) != SUCCESS ) { + if (lock) + up(&ai->sem); + return ERROR; + } + disable_MAC( ai, 0); + + // Let's figure out if we need to use the AUX port + if (!test_bit(FLAG_MPI,&ai->flags)) { + cmd.cmd = CMD_ENABLEAUX; + if (issuecommand(ai, &cmd, &rsp) != SUCCESS) { + if (lock) + up(&ai->sem); + airo_print_err(ai->dev->name, "Error checking for AUX port"); + return ERROR; + } + if (!aux_bap || rsp.status & 0xff00) { + ai->bap_read = fast_bap_read; + airo_print_dbg(ai->dev->name, "Doing fast bap_reads"); + } else { + ai->bap_read = aux_bap_read; + airo_print_dbg(ai->dev->name, "Doing AUX bap_reads"); + } + } + if (lock) + up(&ai->sem); + if (ai->config.len == 0) { + int i; + tdsRssiRid rssi_rid; + CapabilityRid cap_rid; + + kfree(ai->SSID); + ai->SSID = NULL; + // general configuration (read/modify/write) + status = readConfigRid(ai, lock); + if ( status != SUCCESS ) return ERROR; + + status = readCapabilityRid(ai, &cap_rid, lock); + if ( status != SUCCESS ) return ERROR; + + status = PC4500_readrid(ai,RID_RSSI,&rssi_rid,sizeof(rssi_rid),lock); + if ( status == SUCCESS ) { + if (ai->rssi || (ai->rssi = kmalloc(512, GFP_KERNEL)) != NULL) + memcpy(ai->rssi, (u8*)&rssi_rid + 2, 512); /* Skip RID length member */ + } + else { + kfree(ai->rssi); + ai->rssi = NULL; + if (cap_rid.softCap & cpu_to_le16(8)) + ai->config.rmode |= RXMODE_NORMALIZED_RSSI; + else + airo_print_warn(ai->dev->name, "unknown received signal " + "level scale"); + } + ai->config.opmode = adhoc ? MODE_STA_IBSS : MODE_STA_ESS; + set_auth_type(ai, AUTH_OPEN); + ai->config.modulation = MOD_CCK; + + if (le16_to_cpu(cap_rid.len) >= sizeof(cap_rid) && + (cap_rid.extSoftCap & cpu_to_le16(1)) && + micsetup(ai) == SUCCESS) { + ai->config.opmode |= MODE_MIC; + set_bit(FLAG_MIC_CAPABLE, &ai->flags); + } + + /* 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[0] ) { + memset(ai->config.rates,0,sizeof(ai->config.rates)); + for( i = 0; i < 8 && rates[i]; i++ ) { + ai->config.rates[i] = rates[i]; + } + } + set_bit (FLAG_COMMIT, &ai->flags); + } + + /* Setup the SSIDs if present */ + if ( ssids[0] ) { + int i; + for( i = 0; i < 3 && ssids[i]; i++ ) { + size_t len = strlen(ssids[i]); + if (len > 32) + len = 32; + mySsid.ssids[i].len = cpu_to_le16(len); + memcpy(mySsid.ssids[i].ssid, ssids[i], len); + } + mySsid.len = cpu_to_le16(sizeof(mySsid)); + } + + status = writeConfigRid(ai, lock); + if ( status != SUCCESS ) return ERROR; + + /* Set up the SSID list */ + if ( ssids[0] ) { + status = writeSsidRid(ai, &mySsid, lock); + if ( status != SUCCESS ) return ERROR; + } + + status = enable_MAC(ai, lock); + if (status != SUCCESS) + return ERROR; + + /* Grab the initial wep key, we gotta save it for auto_wep */ + rc = readWepKeyRid(ai, &wkr, 1, lock); + if (rc == SUCCESS) do { + lastindex = wkr.kindex; + if (wkr.kindex == cpu_to_le16(0xffff)) { + ai->defindex = wkr.mac[0]; + } + rc = readWepKeyRid(ai, &wkr, 0, lock); + } while(lastindex != wkr.kindex); + + try_auto_wep(ai); + + 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 (IN4500(ai, EVSTAT) & EV_CMD) + OUT4500(ai, EVACK, EV_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) { + if ((IN4500(ai, COMMAND)) == pCmd->cmd) + // PC4500 didn't notice command, try again + OUT4500(ai, COMMAND, pCmd->cmd); + if (!in_atomic() && (max_tries & 255) == 0) + schedule(); + } + + if ( max_tries == -1 ) { + airo_print_err(ai->dev->name, + "Max tries exceeded when issuing command"); + if (IN4500(ai, COMMAND) & COMMAND_BUSY) + OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY); + return ERROR; + } + + // command completed + pRsp->status = IN4500(ai, STATUS); + pRsp->rsp0 = IN4500(ai, RESP0); + pRsp->rsp1 = IN4500(ai, RESP1); + pRsp->rsp2 = IN4500(ai, RESP2); + if ((pRsp->status & 0xff00)!=0 && pCmd->cmd != CMD_SOFTRESET) + airo_print_err(ai->dev->name, + "cmd:%x status:%x rsp0:%x rsp1:%x rsp2:%x", + pCmd->cmd, pRsp->status, pRsp->rsp0, pRsp->rsp1, + pRsp->rsp2); + + // 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); + + return SUCCESS; +} + +/* 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 */ + airo_print_err(ai->dev->name, "BAP error %x %d", + status, whichbap ); + return ERROR; + } else if (status & BAP_DONE) { // success + return SUCCESS; + } + if ( !(max_tries--) ) { + airo_print_err(ai->dev->name, + "BAP setup error too many retries\n"); + 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, __le16 *pu16Dst, + int bytelen, int whichbap) +{ + u16 len; + u16 page; + u16 offset; + u16 next; + int words; + int i; + unsigned 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, __le16 *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 __le16 *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, int lock) +{ + u16 status; + int rc = SUCCESS; + + if (lock) { + if (down_interruptible(&ai->sem)) + return ERROR; + } + if (test_bit(FLAG_MPI,&ai->flags)) { + Cmd cmd; + Resp rsp; + + memset(&cmd, 0, sizeof(cmd)); + memset(&rsp, 0, sizeof(rsp)); + ai->config_desc.rid_desc.valid = 1; + ai->config_desc.rid_desc.len = RIDSIZE; + ai->config_desc.rid_desc.rid = 0; + ai->config_desc.rid_desc.host_addr = ai->ridbus; + + cmd.cmd = CMD_ACCESS; + cmd.parm0 = rid; + + memcpy_toio(ai->config_desc.card_ram_off, + &ai->config_desc.rid_desc, sizeof(Rid)); + + rc = issuecommand(ai, &cmd, &rsp); + + if (rsp.status & 0x7f00) + rc = rsp.rsp0; + if (!rc) + memcpy(pBuf, ai->config_desc.virtual_host_addr, len); + goto done; + } else { + 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(*(__le16*)pBuf)) - 2; + + if ( len <= 2 ) { + airo_print_err(ai->dev->name, + "Rid %x has a length of %d which is too short", + (int)rid, (int)len ); + rc = ERROR; + goto done; + } + // read remainder of the rid + rc = bap_read(ai, ((__le16*)pBuf)+1, len, BAP1); + } +done: + if (lock) + up(&ai->sem); + return rc; +} + +/* Note, that we are using BAP1 which is also used by transmit, so + * make sure this isn't called when a transmit is happening */ +static int PC4500_writerid(struct airo_info *ai, u16 rid, + const void *pBuf, int len, int lock) +{ + u16 status; + int rc = SUCCESS; + + *(__le16*)pBuf = cpu_to_le16((u16)len); + + if (lock) { + if (down_interruptible(&ai->sem)) + return ERROR; + } + if (test_bit(FLAG_MPI,&ai->flags)) { + Cmd cmd; + Resp rsp; + + if (test_bit(FLAG_ENABLED, &ai->flags) && (RID_WEP_TEMP != rid)) + airo_print_err(ai->dev->name, + "%s: MAC should be disabled (rid=%04x)", + __func__, rid); + memset(&cmd, 0, sizeof(cmd)); + memset(&rsp, 0, sizeof(rsp)); + + ai->config_desc.rid_desc.valid = 1; + ai->config_desc.rid_desc.len = *((u16 *)pBuf); + ai->config_desc.rid_desc.rid = 0; + + cmd.cmd = CMD_WRITERID; + cmd.parm0 = rid; + + memcpy_toio(ai->config_desc.card_ram_off, + &ai->config_desc.rid_desc, sizeof(Rid)); + + if (len < 4 || len > 2047) { + airo_print_err(ai->dev->name, "%s: len=%d", __func__, len); + rc = -1; + } else { + memcpy(ai->config_desc.virtual_host_addr, + pBuf, len); + + rc = issuecommand(ai, &cmd, &rsp); + if ((rc & 0xff00) != 0) { + airo_print_err(ai->dev->name, "%s: Write rid Error %d", + __func__, rc); + airo_print_err(ai->dev->name, "%s: Cmd=%04x", + __func__, cmd.cmd); + } + + if ((rsp.status & 0x7f00)) + rc = rsp.rsp0; + } + } else { + // --- 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 (lock) + 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) +{ + unsigned int loop = 3000; + Cmd cmd; + Resp rsp; + u16 txFid; + __le16 txControl; + + cmd.cmd = CMD_ALLOCATETX; + cmd.parm0 = lenPayload; + if (down_interruptible(&ai->sem)) + return ERROR; + if (issuecommand(ai, &cmd, &rsp) != SUCCESS) { + txFid = ERROR; + goto done; + } + if ( (rsp.status & 0xFF00) != 0) { + txFid = ERROR; + 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) && --loop); + if (!loop) { + txFid = ERROR; + goto done; + } + + // 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) +{ + __le16 payloadLen; + Cmd cmd; + Resp rsp; + int miclen = 0; + u16 txFid = len; + MICBuffer pMic; + + len >>= 16; + + if (len <= ETH_ALEN * 2) { + airo_print_warn(ai->dev->name, "Short packet %d", len); + return ERROR; + } + len -= ETH_ALEN * 2; + + if (test_bit(FLAG_MIC_CAPABLE, &ai->flags) && ai->micstats.enabled && + (ntohs(((__be16 *)pPacket)[6]) != 0x888E)) { + if (encapsulate(ai,(etherHead *)pPacket,&pMic,len) != SUCCESS) + return ERROR; + miclen = sizeof(pMic); + } + // 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, (__le16*)pPacket, sizeof(etherHead), BAP1); + if (miclen) + bap_write(ai, (__le16*)&pMic, miclen, BAP1); + bap_write(ai, (__le16*)(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) +{ + __le16 fc, payloadLen; + Cmd cmd; + Resp rsp; + int hdrlen; + static u8 tail[(30-10) + 2 + 6] = {[30-10] = 6}; + /* padding of header to full size + le16 gaplen (6) + gaplen bytes */ + u16 txFid = len; + len >>= 16; + + fc = *(__le16*)pPacket; + hdrlen = header_len(fc); + + if (len < hdrlen) { + airo_print_warn(ai->dev->name, "Short packet %d", 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, (__le16 *)pPacket, hdrlen, BAP1); + bap_write(ai, (__le16 *)(tail + (hdrlen - 10)), 38 - hdrlen, BAP1); + + bap_write(ai, (__le16 *)(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 __user *buffer, + size_t len, + loff_t *offset); + +static ssize_t proc_write( struct file *file, + const char __user *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 const struct file_operations proc_statsdelta_ops = { + .owner = THIS_MODULE, + .read = proc_read, + .open = proc_statsdelta_open, + .release = proc_close, + .llseek = default_llseek, +}; + +static const struct file_operations proc_stats_ops = { + .owner = THIS_MODULE, + .read = proc_read, + .open = proc_stats_open, + .release = proc_close, + .llseek = default_llseek, +}; + +static const struct file_operations proc_status_ops = { + .owner = THIS_MODULE, + .read = proc_read, + .open = proc_status_open, + .release = proc_close, + .llseek = default_llseek, +}; + +static const struct file_operations proc_SSID_ops = { + .owner = THIS_MODULE, + .read = proc_read, + .write = proc_write, + .open = proc_SSID_open, + .release = proc_close, + .llseek = default_llseek, +}; + +static const struct file_operations proc_BSSList_ops = { + .owner = THIS_MODULE, + .read = proc_read, + .write = proc_write, + .open = proc_BSSList_open, + .release = proc_close, + .llseek = default_llseek, +}; + +static const struct file_operations proc_APList_ops = { + .owner = THIS_MODULE, + .read = proc_read, + .write = proc_write, + .open = proc_APList_open, + .release = proc_close, + .llseek = default_llseek, +}; + +static const struct file_operations proc_config_ops = { + .owner = THIS_MODULE, + .read = proc_read, + .write = proc_write, + .open = proc_config_open, + .release = proc_close, + .llseek = default_llseek, +}; + +static const struct file_operations proc_wepkey_ops = { + .owner = THIS_MODULE, + .read = proc_read, + .write = proc_write, + .open = proc_wepkey_open, + .release = proc_close, + .llseek = default_llseek, +}; + +static struct proc_dir_entry *airo_entry; + +struct proc_data { + int release_buffer; + int readlen; + char *rbuffer; + int writelen; + int maxwritelen; + char *wbuffer; + void (*on_close) (struct inode *, struct file *); +}; + +static int setup_proc_entry( struct net_device *dev, + struct airo_info *apriv ) { + struct proc_dir_entry *entry; + + /* First setup the device directory */ + strcpy(apriv->proc_name,dev->name); + apriv->proc_entry = proc_mkdir_mode(apriv->proc_name, airo_perm, + airo_entry); + if (!apriv->proc_entry) + return -ENOMEM; + proc_set_user(apriv->proc_entry, proc_kuid, proc_kgid); + + /* Setup the StatsDelta */ + entry = proc_create_data("StatsDelta", S_IRUGO & proc_perm, + apriv->proc_entry, &proc_statsdelta_ops, dev); + if (!entry) + goto fail; + proc_set_user(entry, proc_kuid, proc_kgid); + + /* Setup the Stats */ + entry = proc_create_data("Stats", S_IRUGO & proc_perm, + apriv->proc_entry, &proc_stats_ops, dev); + if (!entry) + goto fail; + proc_set_user(entry, proc_kuid, proc_kgid); + + /* Setup the Status */ + entry = proc_create_data("Status", S_IRUGO & proc_perm, + apriv->proc_entry, &proc_status_ops, dev); + if (!entry) + goto fail; + proc_set_user(entry, proc_kuid, proc_kgid); + + /* Setup the Config */ + entry = proc_create_data("Config", proc_perm, + apriv->proc_entry, &proc_config_ops, dev); + if (!entry) + goto fail; + proc_set_user(entry, proc_kuid, proc_kgid); + + /* Setup the SSID */ + entry = proc_create_data("SSID", proc_perm, + apriv->proc_entry, &proc_SSID_ops, dev); + if (!entry) + goto fail; + proc_set_user(entry, proc_kuid, proc_kgid); + + /* Setup the APList */ + entry = proc_create_data("APList", proc_perm, + apriv->proc_entry, &proc_APList_ops, dev); + if (!entry) + goto fail; + proc_set_user(entry, proc_kuid, proc_kgid); + + /* Setup the BSSList */ + entry = proc_create_data("BSSList", proc_perm, + apriv->proc_entry, &proc_BSSList_ops, dev); + if (!entry) + goto fail; + proc_set_user(entry, proc_kuid, proc_kgid); + + /* Setup the WepKey */ + entry = proc_create_data("WepKey", proc_perm, + apriv->proc_entry, &proc_wepkey_ops, dev); + if (!entry) + goto fail; + proc_set_user(entry, proc_kuid, proc_kgid); + return 0; + +fail: + remove_proc_subtree(apriv->proc_name, airo_entry); + return -ENOMEM; +} + +static int takedown_proc_entry( struct net_device *dev, + struct airo_info *apriv ) +{ + remove_proc_subtree(apriv->proc_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 __user *buffer, + size_t len, + loff_t *offset ) +{ + struct proc_data *priv = file->private_data; + + if (!priv->rbuffer) + return -EINVAL; + + return simple_read_from_buffer(buffer, len, offset, priv->rbuffer, + priv->readlen); +} + +/* + * 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 __user *buffer, + size_t len, + loff_t *offset ) +{ + ssize_t ret; + struct proc_data *priv = file->private_data; + + if (!priv->wbuffer) + return -EINVAL; + + ret = simple_write_to_buffer(priv->wbuffer, priv->maxwritelen, offset, + buffer, len); + if (ret > 0) + priv->writelen = max_t(int, priv->writelen, *offset); + + return ret; +} + +static int proc_status_open(struct inode *inode, struct file *file) +{ + struct proc_data *data; + struct net_device *dev = PDE_DATA(inode); + struct airo_info *apriv = dev->ml_priv; + CapabilityRid cap_rid; + StatusRid status_rid; + u16 mode; + int i; + + if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL) + return -ENOMEM; + data = file->private_data; + if ((data->rbuffer = kmalloc( 2048, GFP_KERNEL )) == NULL) { + kfree (file->private_data); + return -ENOMEM; + } + + readStatusRid(apriv, &status_rid, 1); + readCapabilityRid(apriv, &cap_rid, 1); + + mode = le16_to_cpu(status_rid.mode); + + i = sprintf(data->rbuffer, "Status: %s%s%s%s%s%s%s%s%s\n", + mode & 1 ? "CFG ": "", + mode & 2 ? "ACT ": "", + mode & 0x10 ? "SYN ": "", + mode & 0x20 ? "LNK ": "", + mode & 0x40 ? "LEAP ": "", + mode & 0x80 ? "PRIV ": "", + mode & 0x100 ? "KEY ": "", + mode & 0x200 ? "WEP ": "", + mode & 0x8000 ? "ERR ": ""); + sprintf( data->rbuffer+i, "Mode: %x\n" + "Signal Strength: %d\n" + "Signal Quality: %d\n" + "SSID: %-.*s\n" + "AP: %-.16s\n" + "Freq: %d\n" + "BitRate: %dmbs\n" + "Driver Version: %s\n" + "Device: %s\nManufacturer: %s\nFirmware Version: %s\n" + "Radio type: %x\nCountry: %x\nHardware Version: %x\n" + "Software Version: %x\nSoftware Subversion: %x\n" + "Boot block version: %x\n", + le16_to_cpu(status_rid.mode), + le16_to_cpu(status_rid.normalizedSignalStrength), + le16_to_cpu(status_rid.signalQuality), + le16_to_cpu(status_rid.SSIDlen), + status_rid.SSID, + status_rid.apName, + le16_to_cpu(status_rid.channel), + le16_to_cpu(status_rid.currentXmitRate) / 2, + version, + cap_rid.prodName, + cap_rid.manName, + cap_rid.prodVer, + le16_to_cpu(cap_rid.radioType), + le16_to_cpu(cap_rid.country), + le16_to_cpu(cap_rid.hardVer), + le16_to_cpu(cap_rid.softVer), + le16_to_cpu(cap_rid.softSubVer), + le16_to_cpu(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 net_device *dev = PDE_DATA(inode); + struct airo_info *apriv = dev->ml_priv; + StatsRid stats; + int i, j; + __le32 *vals = stats.vals; + int len; + + if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL) + return -ENOMEM; + data = file->private_data; + if ((data->rbuffer = kmalloc( 4096, GFP_KERNEL )) == NULL) { + kfree (file->private_data); + return -ENOMEM; + } + + readStatsRid(apriv, &stats, rid, 1); + len = le16_to_cpu(stats.len); + + j = 0; + for(i=0; statsLabels[i]!=(char *)-1 && i*4<len; i++) { + if (!statsLabels[i]) continue; + if (j+strlen(statsLabels[i])+16>4096) { + airo_print_warn(apriv->dev->name, + "Potentially disastrous buffer overflow averted!"); + break; + } + j+=sprintf(data->rbuffer+j, "%s: %u\n", statsLabels[i], + le32_to_cpu(vals[i])); + } + if (i*4 >= len) { + airo_print_warn(apriv->dev->name, "Got a short rid"); + } + data->readlen = j; + return 0; +} + +static int get_dec_u16( char *buffer, int *start, int limit ) { + u16 value; + int valid = 0; + for (value = 0; *start < limit && buffer[*start] >= '0' && + buffer[*start] <= '9'; (*start)++) { + valid = 1; + value *= 10; + value += buffer[*start] - '0'; + } + if ( !valid ) return -1; + return value; +} + +static int airo_config_commit(struct net_device *dev, + struct iw_request_info *info, void *zwrq, + char *extra); + +static inline int sniffing_mode(struct airo_info *ai) +{ + return (le16_to_cpu(ai->config.rmode) & le16_to_cpu(RXMODE_MASK)) >= + le16_to_cpu(RXMODE_RFMON); +} + +static void proc_config_on_close(struct inode *inode, struct file *file) +{ + struct proc_data *data = file->private_data; + struct net_device *dev = PDE_DATA(inode); + struct airo_info *ai = dev->ml_priv; + char *line; + + if ( !data->writelen ) return; + + readConfigRid(ai, 1); + set_bit (FLAG_COMMIT, &ai->flags); + + line = data->wbuffer; + while( line[0] ) { +/*** Mode processing */ + if ( !strncmp( line, "Mode: ", 6 ) ) { + line += 6; + if (sniffing_mode(ai)) + set_bit (FLAG_RESET, &ai->flags); + ai->config.rmode &= ~RXMODE_FULL_MASK; + clear_bit (FLAG_802_11, &ai->flags); + ai->config.opmode &= ~MODE_CFG_MASK; + ai->config.scanMode = SCANMODE_ACTIVE; + if ( line[0] == 'a' ) { + ai->config.opmode |= MODE_STA_IBSS; + } else { + ai->config.opmode |= MODE_STA_ESS; + if ( line[0] == 'r' ) { + ai->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER; + ai->config.scanMode = SCANMODE_PASSIVE; + set_bit (FLAG_802_11, &ai->flags); + } else if ( line[0] == 'y' ) { + ai->config.rmode |= RXMODE_RFMON_ANYBSS | RXMODE_DISABLE_802_3_HEADER; + ai->config.scanMode = SCANMODE_PASSIVE; + set_bit (FLAG_802_11, &ai->flags); + } else if ( line[0] == 'l' ) + ai->config.rmode |= RXMODE_LANMON; + } + set_bit (FLAG_COMMIT, &ai->flags); + } + +/*** Radio status */ + else if (!strncmp(line,"Radio: ", 7)) { + line += 7; + if (!strncmp(line,"off",3)) { + set_bit (FLAG_RADIO_OFF, &ai->flags); + } else { + clear_bit (FLAG_RADIO_OFF, &ai->flags); + } + } +/*** NodeName processing */ + else if ( !strncmp( line, "NodeName: ", 10 ) ) { + int j; + + line += 10; + memset( ai->config.nodeName, 0, 16 ); +/* Do the name, assume a space between the mode and node name */ + for( j = 0; j < 16 && line[j] != '\n'; j++ ) { + ai->config.nodeName[j] = line[j]; + } + set_bit (FLAG_COMMIT, &ai->flags); + } + +/*** PowerMode processing */ + else if ( !strncmp( line, "PowerMode: ", 11 ) ) { + line += 11; + if ( !strncmp( line, "PSPCAM", 6 ) ) { + ai->config.powerSaveMode = POWERSAVE_PSPCAM; + set_bit (FLAG_COMMIT, &ai->flags); + } else if ( !strncmp( line, "PSP", 3 ) ) { + ai->config.powerSaveMode = POWERSAVE_PSP; + set_bit (FLAG_COMMIT, &ai->flags); + } else { + ai->config.powerSaveMode = POWERSAVE_CAM; + set_bit (FLAG_COMMIT, &ai->flags); + } + } else if ( !strncmp( line, "DataRates: ", 11 ) ) { + int v, i = 0, k = 0; /* i is index into line, + k is index to rates */ + + line += 11; + while((v = get_dec_u16(line, &i, 3))!=-1) { + ai->config.rates[k++] = (u8)v; + line += i + 1; + i = 0; + } + set_bit (FLAG_COMMIT, &ai->flags); + } else if ( !strncmp( line, "Channel: ", 9 ) ) { + int v, i = 0; + line += 9; + v = get_dec_u16(line, &i, i+3); + if ( v != -1 ) { + ai->config.channelSet = cpu_to_le16(v); + set_bit (FLAG_COMMIT, &ai->flags); + } + } else if ( !strncmp( line, "XmitPower: ", 11 ) ) { + int v, i = 0; + line += 11; + v = get_dec_u16(line, &i, i+3); + if ( v != -1 ) { + ai->config.txPower = cpu_to_le16(v); + set_bit (FLAG_COMMIT, &ai->flags); + } + } else if ( !strncmp( line, "WEP: ", 5 ) ) { + line += 5; + switch( line[0] ) { + case 's': + set_auth_type(ai, AUTH_SHAREDKEY); + break; + case 'e': + set_auth_type(ai, AUTH_ENCRYPT); + break; + default: + set_auth_type(ai, AUTH_OPEN); + break; + } + set_bit (FLAG_COMMIT, &ai->flags); + } else if ( !strncmp( line, "LongRetryLimit: ", 16 ) ) { + int v, i = 0; + + line += 16; + v = get_dec_u16(line, &i, 3); + v = (v<0) ? 0 : ((v>255) ? 255 : v); + ai->config.longRetryLimit = cpu_to_le16(v); + set_bit (FLAG_COMMIT, &ai->flags); + } else if ( !strncmp( line, "ShortRetryLimit: ", 17 ) ) { + int v, i = 0; + + line += 17; + v = get_dec_u16(line, &i, 3); + v = (v<0) ? 0 : ((v>255) ? 255 : v); + ai->config.shortRetryLimit = cpu_to_le16(v); + set_bit (FLAG_COMMIT, &ai->flags); + } else if ( !strncmp( line, "RTSThreshold: ", 14 ) ) { + int v, i = 0; + + line += 14; + v = get_dec_u16(line, &i, 4); + v = (v<0) ? 0 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v); + ai->config.rtsThres = cpu_to_le16(v); + set_bit (FLAG_COMMIT, &ai->flags); + } else if ( !strncmp( line, "TXMSDULifetime: ", 16 ) ) { + int v, i = 0; + + line += 16; + v = get_dec_u16(line, &i, 5); + v = (v<0) ? 0 : v; + ai->config.txLifetime = cpu_to_le16(v); + set_bit (FLAG_COMMIT, &ai->flags); + } else if ( !strncmp( line, "RXMSDULifetime: ", 16 ) ) { + int v, i = 0; + + line += 16; + v = get_dec_u16(line, &i, 5); + v = (v<0) ? 0 : v; + ai->config.rxLifetime = cpu_to_le16(v); + set_bit (FLAG_COMMIT, &ai->flags); + } else if ( !strncmp( line, "TXDiversity: ", 13 ) ) { + ai->config.txDiversity = + (line[13]=='l') ? 1 : + ((line[13]=='r')? 2: 3); + set_bit (FLAG_COMMIT, &ai->flags); + } else if ( !strncmp( line, "RXDiversity: ", 13 ) ) { + ai->config.rxDiversity = + (line[13]=='l') ? 1 : + ((line[13]=='r')? 2: 3); + set_bit (FLAG_COMMIT, &ai->flags); + } else if ( !strncmp( line, "FragThreshold: ", 15 ) ) { + int v, i = 0; + + line += 15; + v = get_dec_u16(line, &i, 4); + v = (v<256) ? 256 : ((v>AIRO_DEF_MTU) ? AIRO_DEF_MTU : v); + v = v & 0xfffe; /* Make sure its even */ + ai->config.fragThresh = cpu_to_le16(v); + set_bit (FLAG_COMMIT, &ai->flags); + } else if (!strncmp(line, "Modulation: ", 12)) { + line += 12; + switch(*line) { + case 'd': ai->config.modulation=MOD_DEFAULT; set_bit(FLAG_COMMIT, &ai->flags); break; + case 'c': ai->config.modulation=MOD_CCK; set_bit(FLAG_COMMIT, &ai->flags); break; + case 'm': ai->config.modulation=MOD_MOK; set_bit(FLAG_COMMIT, &ai->flags); break; + default: airo_print_warn(ai->dev->name, "Unknown modulation"); + } + } else if (!strncmp(line, "Preamble: ", 10)) { + line += 10; + switch(*line) { + case 'a': ai->config.preamble=PREAMBLE_AUTO; set_bit(FLAG_COMMIT, &ai->flags); break; + case 'l': ai->config.preamble=PREAMBLE_LONG; set_bit(FLAG_COMMIT, &ai->flags); break; + case 's': ai->config.preamble=PREAMBLE_SHORT; set_bit(FLAG_COMMIT, &ai->flags); break; + default: airo_print_warn(ai->dev->name, "Unknown preamble"); + } + } else { + airo_print_warn(ai->dev->name, "Couldn't figure out %s", line); + } + while( line[0] && line[0] != '\n' ) line++; + if ( line[0] ) line++; + } + airo_config_commit(dev, NULL, NULL, NULL); +} + +static const char *get_rmode(__le16 mode) +{ + switch(mode & RXMODE_MASK) { + case RXMODE_RFMON: return "rfmon"; + case RXMODE_RFMON_ANYBSS: return "yna (any) bss rfmon"; + case RXMODE_LANMON: return "lanmon"; + } + return "ESS"; +} + +static int proc_config_open(struct inode *inode, struct file *file) +{ + struct proc_data *data; + struct net_device *dev = PDE_DATA(inode); + struct airo_info *ai = dev->ml_priv; + int i; + __le16 mode; + + if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL) + return -ENOMEM; + data = file->private_data; + if ((data->rbuffer = kmalloc( 2048, GFP_KERNEL )) == NULL) { + kfree (file->private_data); + return -ENOMEM; + } + if ((data->wbuffer = kzalloc( 2048, GFP_KERNEL )) == NULL) { + kfree (data->rbuffer); + kfree (file->private_data); + return -ENOMEM; + } + data->maxwritelen = 2048; + data->on_close = proc_config_on_close; + + readConfigRid(ai, 1); + + mode = ai->config.opmode & MODE_CFG_MASK; + i = sprintf( data->rbuffer, + "Mode: %s\n" + "Radio: %s\n" + "NodeName: %-16s\n" + "PowerMode: %s\n" + "DataRates: %d %d %d %d %d %d %d %d\n" + "Channel: %d\n" + "XmitPower: %d\n", + mode == MODE_STA_IBSS ? "adhoc" : + mode == MODE_STA_ESS ? get_rmode(ai->config.rmode): + mode == MODE_AP ? "AP" : + mode == MODE_AP_RPTR ? "AP RPTR" : "Error", + test_bit(FLAG_RADIO_OFF, &ai->flags) ? "off" : "on", + ai->config.nodeName, + ai->config.powerSaveMode == POWERSAVE_CAM ? "CAM" : + ai->config.powerSaveMode == POWERSAVE_PSP ? "PSP" : + ai->config.powerSaveMode == POWERSAVE_PSPCAM ? "PSPCAM" : + "Error", + (int)ai->config.rates[0], + (int)ai->config.rates[1], + (int)ai->config.rates[2], + (int)ai->config.rates[3], + (int)ai->config.rates[4], + (int)ai->config.rates[5], + (int)ai->config.rates[6], + (int)ai->config.rates[7], + le16_to_cpu(ai->config.channelSet), + le16_to_cpu(ai->config.txPower) + ); + sprintf( data->rbuffer + i, + "LongRetryLimit: %d\n" + "ShortRetryLimit: %d\n" + "RTSThreshold: %d\n" + "TXMSDULifetime: %d\n" + "RXMSDULifetime: %d\n" + "TXDiversity: %s\n" + "RXDiversity: %s\n" + "FragThreshold: %d\n" + "WEP: %s\n" + "Modulation: %s\n" + "Preamble: %s\n", + le16_to_cpu(ai->config.longRetryLimit), + le16_to_cpu(ai->config.shortRetryLimit), + le16_to_cpu(ai->config.rtsThres), + le16_to_cpu(ai->config.txLifetime), + le16_to_cpu(ai->config.rxLifetime), + ai->config.txDiversity == 1 ? "left" : + ai->config.txDiversity == 2 ? "right" : "both", + ai->config.rxDiversity == 1 ? "left" : + ai->config.rxDiversity == 2 ? "right" : "both", + le16_to_cpu(ai->config.fragThresh), + ai->config.authType == AUTH_ENCRYPT ? "encrypt" : + ai->config.authType == AUTH_SHAREDKEY ? "shared" : "open", + ai->config.modulation == MOD_DEFAULT ? "default" : + ai->config.modulation == MOD_CCK ? "cck" : + ai->config.modulation == MOD_MOK ? "mok" : "error", + ai->config.preamble == PREAMBLE_AUTO ? "auto" : + ai->config.preamble == PREAMBLE_LONG ? "long" : + ai->config.preamble == PREAMBLE_SHORT ? "short" : "error" + ); + data->readlen = strlen( data->rbuffer ); + return 0; +} + +static void proc_SSID_on_close(struct inode *inode, struct file *file) +{ + struct proc_data *data = file->private_data; + struct net_device *dev = PDE_DATA(inode); + struct airo_info *ai = dev->ml_priv; + SsidRid SSID_rid; + int i; + char *p = data->wbuffer; + char *end = p + data->writelen; + + if (!data->writelen) + return; + + *end = '\n'; /* sentinel; we have space for it */ + + memset(&SSID_rid, 0, sizeof(SSID_rid)); + + for (i = 0; i < 3 && p < end; i++) { + int j = 0; + /* copy up to 32 characters from this line */ + while (*p != '\n' && j < 32) + SSID_rid.ssids[i].ssid[j++] = *p++; + if (j == 0) + break; + SSID_rid.ssids[i].len = cpu_to_le16(j); + /* skip to the beginning of the next line */ + while (*p++ != '\n') + ; + } + if (i) + SSID_rid.len = cpu_to_le16(sizeof(SSID_rid)); + disable_MAC(ai, 1); + writeSsidRid(ai, &SSID_rid, 1); + enable_MAC(ai, 1); +} + +static void proc_APList_on_close( struct inode *inode, struct file *file ) { + struct proc_data *data = file->private_data; + struct net_device *dev = PDE_DATA(inode); + struct airo_info *ai = dev->ml_priv; + APListRid *APList_rid = &ai->APList; + int i; + + if ( !data->writelen ) return; + + memset(APList_rid, 0, sizeof(*APList_rid)); + APList_rid->len = cpu_to_le16(sizeof(*APList_rid)); + + for (i = 0; i < 4 && data->writelen >= (i + 1) * 6 * 3; i++) + mac_pton(data->wbuffer + i * 6 * 3, APList_rid->ap[i]); + + disable_MAC(ai, 1); + writeAPListRid(ai, APList_rid, 1); + enable_MAC(ai, 1); +} + +/* This function wraps PC4500_writerid with a MAC disable */ +static int do_writerid( struct airo_info *ai, u16 rid, const void *rid_data, + int len, int dummy ) { + int rc; + + disable_MAC(ai, 1); + rc = PC4500_writerid(ai, rid, rid_data, len, 1); + enable_MAC(ai, 1); + return rc; +} + +/* Returns the WEP key at the specified index, or -1 if that key does + * not exist. The buffer is assumed to be at least 16 bytes in length. + */ +static int get_wep_key(struct airo_info *ai, u16 index, char *buf, u16 buflen) +{ + WepKeyRid wkr; + int rc; + __le16 lastindex; + + rc = readWepKeyRid(ai, &wkr, 1, 1); + if (rc != SUCCESS) + return -1; + do { + lastindex = wkr.kindex; + if (le16_to_cpu(wkr.kindex) == index) { + int klen = min_t(int, buflen, le16_to_cpu(wkr.klen)); + memcpy(buf, wkr.key, klen); + return klen; + } + rc = readWepKeyRid(ai, &wkr, 0, 1); + if (rc != SUCCESS) + return -1; + } while (lastindex != wkr.kindex); + return -1; +} + +static int get_wep_tx_idx(struct airo_info *ai) +{ + WepKeyRid wkr; + int rc; + __le16 lastindex; + + rc = readWepKeyRid(ai, &wkr, 1, 1); + if (rc != SUCCESS) + return -1; + do { + lastindex = wkr.kindex; + if (wkr.kindex == cpu_to_le16(0xffff)) + return wkr.mac[0]; + rc = readWepKeyRid(ai, &wkr, 0, 1); + if (rc != SUCCESS) + return -1; + } while (lastindex != wkr.kindex); + return -1; +} + +static int set_wep_key(struct airo_info *ai, u16 index, const char *key, + u16 keylen, int perm, int lock) +{ + static const unsigned char macaddr[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 }; + WepKeyRid wkr; + int rc; + + if (WARN_ON(keylen == 0)) + return -1; + + memset(&wkr, 0, sizeof(wkr)); + wkr.len = cpu_to_le16(sizeof(wkr)); + wkr.kindex = cpu_to_le16(index); + wkr.klen = cpu_to_le16(keylen); + memcpy(wkr.key, key, keylen); + memcpy(wkr.mac, macaddr, ETH_ALEN); + + if (perm) disable_MAC(ai, lock); + rc = writeWepKeyRid(ai, &wkr, perm, lock); + if (perm) enable_MAC(ai, lock); + return rc; +} + +static int set_wep_tx_idx(struct airo_info *ai, u16 index, int perm, int lock) +{ + WepKeyRid wkr; + int rc; + + memset(&wkr, 0, sizeof(wkr)); + wkr.len = cpu_to_le16(sizeof(wkr)); + wkr.kindex = cpu_to_le16(0xffff); + wkr.mac[0] = (char)index; + + if (perm) { + ai->defindex = (char)index; + disable_MAC(ai, lock); + } + + rc = writeWepKeyRid(ai, &wkr, perm, lock); + + if (perm) + enable_MAC(ai, lock); + return rc; +} + +static void proc_wepkey_on_close( struct inode *inode, struct file *file ) { + struct proc_data *data; + struct net_device *dev = PDE_DATA(inode); + struct airo_info *ai = dev->ml_priv; + int i, rc; + char key[16]; + u16 index = 0; + int j = 0; + + memset(key, 0, sizeof(key)); + + data = file->private_data; + if ( !data->writelen ) return; + + if (data->wbuffer[0] >= '0' && data->wbuffer[0] <= '3' && + (data->wbuffer[1] == ' ' || data->wbuffer[1] == '\n')) { + index = data->wbuffer[0] - '0'; + if (data->wbuffer[1] == '\n') { + rc = set_wep_tx_idx(ai, index, 1, 1); + if (rc < 0) { + airo_print_err(ai->dev->name, "failed to set " + "WEP transmit index to %d: %d.", + index, rc); + } + return; + } + j = 2; + } else { + airo_print_err(ai->dev->name, "WepKey passed invalid key index"); + return; + } + + for( i = 0; i < 16*3 && data->wbuffer[i+j]; i++ ) { + switch(i%3) { + case 0: + key[i/3] = hex_to_bin(data->wbuffer[i+j])<<4; + break; + case 1: + key[i/3] |= hex_to_bin(data->wbuffer[i+j]); + break; + } + } + + rc = set_wep_key(ai, index, key, i/3, 1, 1); + if (rc < 0) { + airo_print_err(ai->dev->name, "failed to set WEP key at index " + "%d: %d.", index, rc); + } +} + +static int proc_wepkey_open( struct inode *inode, struct file *file ) +{ + struct proc_data *data; + struct net_device *dev = PDE_DATA(inode); + struct airo_info *ai = dev->ml_priv; + char *ptr; + WepKeyRid wkr; + __le16 lastindex; + int j=0; + int rc; + + if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL) + return -ENOMEM; + memset(&wkr, 0, sizeof(wkr)); + data = file->private_data; + if ((data->rbuffer = kzalloc( 180, GFP_KERNEL )) == NULL) { + kfree (file->private_data); + return -ENOMEM; + } + data->writelen = 0; + data->maxwritelen = 80; + if ((data->wbuffer = kzalloc( 80, GFP_KERNEL )) == NULL) { + kfree (data->rbuffer); + kfree (file->private_data); + return -ENOMEM; + } + data->on_close = proc_wepkey_on_close; + + ptr = data->rbuffer; + strcpy(ptr, "No wep keys\n"); + rc = readWepKeyRid(ai, &wkr, 1, 1); + if (rc == SUCCESS) do { + lastindex = wkr.kindex; + if (wkr.kindex == cpu_to_le16(0xffff)) { + j += sprintf(ptr+j, "Tx key = %d\n", + (int)wkr.mac[0]); + } else { + j += sprintf(ptr+j, "Key %d set with length = %d\n", + le16_to_cpu(wkr.kindex), + le16_to_cpu(wkr.klen)); + } + readWepKeyRid(ai, &wkr, 0, 1); + } while((lastindex != wkr.kindex) && (j < 180-30)); + + data->readlen = strlen( data->rbuffer ); + return 0; +} + +static int proc_SSID_open(struct inode *inode, struct file *file) +{ + struct proc_data *data; + struct net_device *dev = PDE_DATA(inode); + struct airo_info *ai = dev->ml_priv; + int i; + char *ptr; + SsidRid SSID_rid; + + if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL) + return -ENOMEM; + data = file->private_data; + if ((data->rbuffer = kmalloc( 104, GFP_KERNEL )) == NULL) { + kfree (file->private_data); + return -ENOMEM; + } + data->writelen = 0; + data->maxwritelen = 33*3; + /* allocate maxwritelen + 1; we'll want a sentinel */ + if ((data->wbuffer = kzalloc(33*3 + 1, GFP_KERNEL)) == NULL) { + kfree (data->rbuffer); + kfree (file->private_data); + return -ENOMEM; + } + data->on_close = proc_SSID_on_close; + + readSsidRid(ai, &SSID_rid); + ptr = data->rbuffer; + for (i = 0; i < 3; i++) { + int j; + size_t len = le16_to_cpu(SSID_rid.ssids[i].len); + if (!len) + break; + if (len > 32) + len = 32; + for (j = 0; j < len && SSID_rid.ssids[i].ssid[j]; j++) + *ptr++ = SSID_rid.ssids[i].ssid[j]; + *ptr++ = '\n'; + } + *ptr = '\0'; + data->readlen = strlen( data->rbuffer ); + return 0; +} + +static int proc_APList_open( struct inode *inode, struct file *file ) { + struct proc_data *data; + struct net_device *dev = PDE_DATA(inode); + struct airo_info *ai = dev->ml_priv; + int i; + char *ptr; + APListRid *APList_rid = &ai->APList; + + if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL) + return -ENOMEM; + data = file->private_data; + if ((data->rbuffer = kmalloc( 104, GFP_KERNEL )) == NULL) { + kfree (file->private_data); + return -ENOMEM; + } + data->writelen = 0; + data->maxwritelen = 4*6*3; + if ((data->wbuffer = kzalloc( data->maxwritelen, GFP_KERNEL )) == NULL) { + kfree (data->rbuffer); + kfree (file->private_data); + return -ENOMEM; + } + data->on_close = proc_APList_on_close; + + ptr = data->rbuffer; + for( i = 0; i < 4; i++ ) { +// We end when we find a zero MAC + if ( !*(int*)APList_rid->ap[i] && + !*(int*)&APList_rid->ap[i][2]) break; + ptr += sprintf(ptr, "%pM\n", APList_rid->ap[i]); + } + if (i==0) ptr += sprintf(ptr, "Not using specific APs\n"); + + *ptr = '\0'; + data->readlen = strlen( data->rbuffer ); + return 0; +} + +static int proc_BSSList_open( struct inode *inode, struct file *file ) { + struct proc_data *data; + struct net_device *dev = PDE_DATA(inode); + struct airo_info *ai = dev->ml_priv; + char *ptr; + BSSListRid BSSList_rid; + int rc; + /* If doLoseSync is not 1, we won't do a Lose Sync */ + int doLoseSync = -1; + + if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL) + return -ENOMEM; + data = file->private_data; + if ((data->rbuffer = kmalloc( 1024, GFP_KERNEL )) == NULL) { + kfree (file->private_data); + return -ENOMEM; + } + data->writelen = 0; + data->maxwritelen = 0; + data->wbuffer = NULL; + data->on_close = NULL; + + if (file->f_mode & FMODE_WRITE) { + if (!(file->f_mode & FMODE_READ)) { + Cmd cmd; + Resp rsp; + + if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN; + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd=CMD_LISTBSS; + if (down_interruptible(&ai->sem)) + return -ERESTARTSYS; + issuecommand(ai, &cmd, &rsp); + up(&ai->sem); + data->readlen = 0; + return 0; + } + doLoseSync = 1; + } + ptr = data->rbuffer; + /* There is a race condition here if there are concurrent opens. + Since it is a rare condition, we'll just live with it, otherwise + we have to add a spin lock... */ + rc = readBSSListRid(ai, doLoseSync, &BSSList_rid); + while(rc == 0 && BSSList_rid.index != cpu_to_le16(0xffff)) { + ptr += sprintf(ptr, "%pM %*s rssi = %d", + BSSList_rid.bssid, + (int)BSSList_rid.ssidLen, + BSSList_rid.ssid, + le16_to_cpu(BSSList_rid.dBm)); + ptr += sprintf(ptr, " channel = %d %s %s %s %s\n", + le16_to_cpu(BSSList_rid.dsChannel), + BSSList_rid.cap & CAP_ESS ? "ESS" : "", + BSSList_rid.cap & CAP_IBSS ? "adhoc" : "", + BSSList_rid.cap & CAP_PRIVACY ? "wep" : "", + BSSList_rid.cap & CAP_SHORTHDR ? "shorthdr" : ""); + rc = readBSSListRid(ai, 0, &BSSList_rid); + } + *ptr = '\0'; + data->readlen = strlen( data->rbuffer ); + return 0; +} + +static int proc_close( struct inode *inode, struct file *file ) +{ + struct proc_data *data = file->private_data; + + if (data->on_close != NULL) + data->on_close(inode, file); + kfree(data->rbuffer); + kfree(data->wbuffer); + kfree(data); + return 0; +} + +/* Since the card doesn't automatically switch to the right WEP mode, + we will make it do it. If the card isn't associated, every secs we + will switch WEP modes to see if that will help. If the card is + associated we will check every minute to see if anything has + changed. */ +static void timer_func( struct net_device *dev ) { + struct airo_info *apriv = dev->ml_priv; + +/* We don't have a link so try changing the authtype */ + readConfigRid(apriv, 0); + disable_MAC(apriv, 0); + switch(apriv->config.authType) { + case AUTH_ENCRYPT: +/* So drop to OPEN */ + apriv->config.authType = AUTH_OPEN; + break; + case AUTH_SHAREDKEY: + if (apriv->keyindex < auto_wep) { + set_wep_tx_idx(apriv, apriv->keyindex, 0, 0); + apriv->config.authType = AUTH_SHAREDKEY; + apriv->keyindex++; + } else { + /* Drop to ENCRYPT */ + apriv->keyindex = 0; + set_wep_tx_idx(apriv, apriv->defindex, 0, 0); + apriv->config.authType = AUTH_ENCRYPT; + } + break; + default: /* We'll escalate to SHAREDKEY */ + apriv->config.authType = AUTH_SHAREDKEY; + } + set_bit (FLAG_COMMIT, &apriv->flags); + writeConfigRid(apriv, 0); + enable_MAC(apriv, 0); + up(&apriv->sem); + +/* Schedule check to see if the change worked */ + clear_bit(JOB_AUTOWEP, &apriv->jobs); + apriv->expires = RUN_AT(HZ*3); +} + +#ifdef CONFIG_PCI +static int airo_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *pent) +{ + struct net_device *dev; + + if (pci_enable_device(pdev)) + return -ENODEV; + pci_set_master(pdev); + + if (pdev->device == 0x5000 || pdev->device == 0xa504) + dev = _init_airo_card(pdev->irq, pdev->resource[0].start, 0, pdev, &pdev->dev); + else + dev = _init_airo_card(pdev->irq, pdev->resource[2].start, 0, pdev, &pdev->dev); + if (!dev) { + pci_disable_device(pdev); + return -ENODEV; + } + + pci_set_drvdata(pdev, dev); + return 0; +} + +static void airo_pci_remove(struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata(pdev); + + airo_print_info(dev->name, "Unregistering..."); + stop_airo_card(dev, 1); + pci_disable_device(pdev); +} + +static int airo_pci_suspend(struct pci_dev *pdev, pm_message_t state) +{ + struct net_device *dev = pci_get_drvdata(pdev); + struct airo_info *ai = dev->ml_priv; + Cmd cmd; + Resp rsp; + + if (!ai->SSID) + ai->SSID = kmalloc(sizeof(SsidRid), GFP_KERNEL); + if (!ai->SSID) + return -ENOMEM; + readSsidRid(ai, ai->SSID); + memset(&cmd, 0, sizeof(cmd)); + /* the lock will be released at the end of the resume callback */ + if (down_interruptible(&ai->sem)) + return -EAGAIN; + disable_MAC(ai, 0); + netif_device_detach(dev); + ai->power = state; + cmd.cmd = HOSTSLEEP; + issuecommand(ai, &cmd, &rsp); + + pci_enable_wake(pdev, pci_choose_state(pdev, state), 1); + pci_save_state(pdev); + pci_set_power_state(pdev, pci_choose_state(pdev, state)); + return 0; +} + +static int airo_pci_resume(struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata(pdev); + struct airo_info *ai = dev->ml_priv; + pci_power_t prev_state = pdev->current_state; + + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + pci_enable_wake(pdev, PCI_D0, 0); + + if (prev_state != PCI_D1) { + reset_card(dev, 0); + mpi_init_descriptors(ai); + setup_card(ai, dev->dev_addr, 0); + clear_bit(FLAG_RADIO_OFF, &ai->flags); + clear_bit(FLAG_PENDING_XMIT, &ai->flags); + } else { + OUT4500(ai, EVACK, EV_AWAKEN); + OUT4500(ai, EVACK, EV_AWAKEN); + msleep(100); + } + + set_bit(FLAG_COMMIT, &ai->flags); + disable_MAC(ai, 0); + msleep(200); + if (ai->SSID) { + writeSsidRid(ai, ai->SSID, 0); + kfree(ai->SSID); + ai->SSID = NULL; + } + writeAPListRid(ai, &ai->APList, 0); + writeConfigRid(ai, 0); + enable_MAC(ai, 0); + ai->power = PMSG_ON; + netif_device_attach(dev); + netif_wake_queue(dev); + enable_interrupts(ai); + up(&ai->sem); + return 0; +} +#endif + +static int __init airo_init_module( void ) +{ + int i; + + proc_kuid = make_kuid(&init_user_ns, proc_uid); + proc_kgid = make_kgid(&init_user_ns, proc_gid); + if (!uid_valid(proc_kuid) || !gid_valid(proc_kgid)) + return -EINVAL; + + airo_entry = proc_mkdir_mode("driver/aironet", airo_perm, NULL); + + if (airo_entry) + proc_set_user(airo_entry, proc_kuid, proc_kgid); + + for (i = 0; i < 4 && io[i] && irq[i]; i++) { + airo_print_info("", "Trying to configure ISA adapter at irq=%d " + "io=0x%x", irq[i], io[i] ); + if (init_airo_card( irq[i], io[i], 0, NULL )) + /* do nothing */ ; + } + +#ifdef CONFIG_PCI + airo_print_info("", "Probing for PCI adapters"); + i = pci_register_driver(&airo_driver); + airo_print_info("", "Finished probing for PCI adapters"); + + if (i) { + remove_proc_entry("driver/aironet", NULL); + return i; + } +#endif + + /* Always exit with success, as we are a library module + * as well as a driver module + */ + return 0; +} + +static void __exit airo_cleanup_module( void ) +{ + struct airo_info *ai; + while(!list_empty(&airo_devices)) { + ai = list_entry(airo_devices.next, struct airo_info, dev_list); + airo_print_info(ai->dev->name, "Unregistering..."); + stop_airo_card(ai->dev, 1); + } +#ifdef CONFIG_PCI + pci_unregister_driver(&airo_driver); +#endif + remove_proc_entry("driver/aironet", NULL); +} + +/* + * Initial Wireless Extension code for Aironet driver by : + * Jean Tourrilhes <jt@hpl.hp.com> - HPL - 17 November 00 + * Conversion to new driver API by : + * Jean Tourrilhes <jt@hpl.hp.com> - HPL - 26 March 02 + * Javier also did a good amount of work here, adding some new extensions + * and fixing my code. Let's just say that without him this code just + * would not work at all... - Jean II + */ + +static u8 airo_rssi_to_dbm (tdsRssiEntry *rssi_rid, u8 rssi) +{ + if (!rssi_rid) + return 0; + + return (0x100 - rssi_rid[rssi].rssidBm); +} + +static u8 airo_dbm_to_pct (tdsRssiEntry *rssi_rid, u8 dbm) +{ + int i; + + if (!rssi_rid) + return 0; + + for (i = 0; i < 256; i++) + if (rssi_rid[i].rssidBm == dbm) + return rssi_rid[i].rssipct; + + return 0; +} + + +static int airo_get_quality (StatusRid *status_rid, CapabilityRid *cap_rid) +{ + int quality = 0; + u16 sq; + + if ((status_rid->mode & cpu_to_le16(0x3f)) != cpu_to_le16(0x3f)) + return 0; + + if (!(cap_rid->hardCap & cpu_to_le16(8))) + return 0; + + sq = le16_to_cpu(status_rid->signalQuality); + if (memcmp(cap_rid->prodName, "350", 3)) + if (sq > 0x20) + quality = 0; + else + quality = 0x20 - sq; + else + if (sq > 0xb0) + quality = 0; + else if (sq < 0x10) + quality = 0xa0; + else + quality = 0xb0 - sq; + return quality; +} + +#define airo_get_max_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x20 : 0xa0) +#define airo_get_avg_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x10 : 0x50); + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get protocol name + */ +static int airo_get_name(struct net_device *dev, + struct iw_request_info *info, + char *cwrq, + char *extra) +{ + strcpy(cwrq, "IEEE 802.11-DS"); + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set frequency + */ +static int airo_set_freq(struct net_device *dev, + struct iw_request_info *info, + struct iw_freq *fwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + int rc = -EINPROGRESS; /* Call commit handler */ + + /* If setting by frequency, convert to a channel */ + if(fwrq->e == 1) { + int f = fwrq->m / 100000; + + /* Hack to fall through... */ + fwrq->e = 0; + fwrq->m = ieee80211_frequency_to_channel(f); + } + /* Setting by channel number */ + if((fwrq->m > 1000) || (fwrq->e > 0)) + rc = -EOPNOTSUPP; + else { + int channel = fwrq->m; + /* We should do a better check than that, + * based on the card capability !!! */ + if((channel < 1) || (channel > 14)) { + airo_print_dbg(dev->name, "New channel value of %d is invalid!", + fwrq->m); + rc = -EINVAL; + } else { + readConfigRid(local, 1); + /* Yes ! We can set it !!! */ + local->config.channelSet = cpu_to_le16(channel); + set_bit (FLAG_COMMIT, &local->flags); + } + } + return rc; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get frequency + */ +static int airo_get_freq(struct net_device *dev, + struct iw_request_info *info, + struct iw_freq *fwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + StatusRid status_rid; /* Card status info */ + int ch; + + readConfigRid(local, 1); + if ((local->config.opmode & MODE_CFG_MASK) == MODE_STA_ESS) + status_rid.channel = local->config.channelSet; + else + readStatusRid(local, &status_rid, 1); + + ch = le16_to_cpu(status_rid.channel); + if((ch > 0) && (ch < 15)) { + fwrq->m = 100000 * + ieee80211_channel_to_frequency(ch, IEEE80211_BAND_2GHZ); + fwrq->e = 1; + } else { + fwrq->m = ch; + fwrq->e = 0; + } + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set ESSID + */ +static int airo_set_essid(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *dwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + SsidRid SSID_rid; /* SSIDs */ + + /* Reload the list of current SSID */ + readSsidRid(local, &SSID_rid); + + /* Check if we asked for `any' */ + if (dwrq->flags == 0) { + /* Just send an empty SSID list */ + memset(&SSID_rid, 0, sizeof(SSID_rid)); + } else { + unsigned index = (dwrq->flags & IW_ENCODE_INDEX) - 1; + + /* Check the size of the string */ + if (dwrq->length > IW_ESSID_MAX_SIZE) + return -E2BIG ; + + /* Check if index is valid */ + if (index >= ARRAY_SIZE(SSID_rid.ssids)) + return -EINVAL; + + /* Set the SSID */ + memset(SSID_rid.ssids[index].ssid, 0, + sizeof(SSID_rid.ssids[index].ssid)); + memcpy(SSID_rid.ssids[index].ssid, extra, dwrq->length); + SSID_rid.ssids[index].len = cpu_to_le16(dwrq->length); + } + SSID_rid.len = cpu_to_le16(sizeof(SSID_rid)); + /* Write it to the card */ + disable_MAC(local, 1); + writeSsidRid(local, &SSID_rid, 1); + enable_MAC(local, 1); + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get ESSID + */ +static int airo_get_essid(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *dwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + StatusRid status_rid; /* Card status info */ + + readStatusRid(local, &status_rid, 1); + + /* Note : if dwrq->flags != 0, we should + * get the relevant SSID from the SSID list... */ + + /* Get the current SSID */ + memcpy(extra, status_rid.SSID, le16_to_cpu(status_rid.SSIDlen)); + /* If none, we may want to get the one that was set */ + + /* Push it out ! */ + dwrq->length = le16_to_cpu(status_rid.SSIDlen); + dwrq->flags = 1; /* active */ + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set AP address + */ +static int airo_set_wap(struct net_device *dev, + struct iw_request_info *info, + struct sockaddr *awrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + Cmd cmd; + Resp rsp; + APListRid *APList_rid = &local->APList; + + if (awrq->sa_family != ARPHRD_ETHER) + return -EINVAL; + else if (is_broadcast_ether_addr(awrq->sa_data) || + is_zero_ether_addr(awrq->sa_data)) { + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd=CMD_LOSE_SYNC; + if (down_interruptible(&local->sem)) + return -ERESTARTSYS; + issuecommand(local, &cmd, &rsp); + up(&local->sem); + } else { + memset(APList_rid, 0, sizeof(*APList_rid)); + APList_rid->len = cpu_to_le16(sizeof(*APList_rid)); + memcpy(APList_rid->ap[0], awrq->sa_data, ETH_ALEN); + disable_MAC(local, 1); + writeAPListRid(local, APList_rid, 1); + enable_MAC(local, 1); + } + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get AP address + */ +static int airo_get_wap(struct net_device *dev, + struct iw_request_info *info, + struct sockaddr *awrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + StatusRid status_rid; /* Card status info */ + + readStatusRid(local, &status_rid, 1); + + /* Tentative. This seems to work, wow, I'm lucky !!! */ + memcpy(awrq->sa_data, status_rid.bssid[0], ETH_ALEN); + awrq->sa_family = ARPHRD_ETHER; + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set Nickname + */ +static int airo_set_nick(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *dwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + + /* Check the size of the string */ + if(dwrq->length > 16) { + return -E2BIG; + } + readConfigRid(local, 1); + memset(local->config.nodeName, 0, sizeof(local->config.nodeName)); + memcpy(local->config.nodeName, extra, dwrq->length); + set_bit (FLAG_COMMIT, &local->flags); + + return -EINPROGRESS; /* Call commit handler */ +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get Nickname + */ +static int airo_get_nick(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *dwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + + readConfigRid(local, 1); + strncpy(extra, local->config.nodeName, 16); + extra[16] = '\0'; + dwrq->length = strlen(extra); + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set Bit-Rate + */ +static int airo_set_rate(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + CapabilityRid cap_rid; /* Card capability info */ + u8 brate = 0; + int i; + + /* First : get a valid bit rate value */ + readCapabilityRid(local, &cap_rid, 1); + + /* Which type of value ? */ + if((vwrq->value < 8) && (vwrq->value >= 0)) { + /* Setting by rate index */ + /* Find value in the magic rate table */ + brate = cap_rid.supportedRates[vwrq->value]; + } else { + /* Setting by frequency value */ + u8 normvalue = (u8) (vwrq->value/500000); + + /* Check if rate is valid */ + for(i = 0 ; i < 8 ; i++) { + if(normvalue == cap_rid.supportedRates[i]) { + brate = normvalue; + break; + } + } + } + /* -1 designed the max rate (mostly auto mode) */ + if(vwrq->value == -1) { + /* Get the highest available rate */ + for(i = 0 ; i < 8 ; i++) { + if(cap_rid.supportedRates[i] == 0) + break; + } + if(i != 0) + brate = cap_rid.supportedRates[i - 1]; + } + /* Check that it is valid */ + if(brate == 0) { + return -EINVAL; + } + + readConfigRid(local, 1); + /* Now, check if we want a fixed or auto value */ + if(vwrq->fixed == 0) { + /* Fill all the rates up to this max rate */ + memset(local->config.rates, 0, 8); + for(i = 0 ; i < 8 ; i++) { + local->config.rates[i] = cap_rid.supportedRates[i]; + if(local->config.rates[i] == brate) + break; + } + } else { + /* Fixed mode */ + /* One rate, fixed */ + memset(local->config.rates, 0, 8); + local->config.rates[0] = brate; + } + set_bit (FLAG_COMMIT, &local->flags); + + return -EINPROGRESS; /* Call commit handler */ +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get Bit-Rate + */ +static int airo_get_rate(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + StatusRid status_rid; /* Card status info */ + + readStatusRid(local, &status_rid, 1); + + vwrq->value = le16_to_cpu(status_rid.currentXmitRate) * 500000; + /* If more than one rate, set auto */ + readConfigRid(local, 1); + vwrq->fixed = (local->config.rates[1] == 0); + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set RTS threshold + */ +static int airo_set_rts(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + int rthr = vwrq->value; + + if(vwrq->disabled) + rthr = AIRO_DEF_MTU; + if((rthr < 0) || (rthr > AIRO_DEF_MTU)) { + return -EINVAL; + } + readConfigRid(local, 1); + local->config.rtsThres = cpu_to_le16(rthr); + set_bit (FLAG_COMMIT, &local->flags); + + return -EINPROGRESS; /* Call commit handler */ +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get RTS threshold + */ +static int airo_get_rts(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + + readConfigRid(local, 1); + vwrq->value = le16_to_cpu(local->config.rtsThres); + vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU); + vwrq->fixed = 1; + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set Fragmentation threshold + */ +static int airo_set_frag(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + int fthr = vwrq->value; + + if(vwrq->disabled) + fthr = AIRO_DEF_MTU; + if((fthr < 256) || (fthr > AIRO_DEF_MTU)) { + return -EINVAL; + } + fthr &= ~0x1; /* Get an even value - is it really needed ??? */ + readConfigRid(local, 1); + local->config.fragThresh = cpu_to_le16(fthr); + set_bit (FLAG_COMMIT, &local->flags); + + return -EINPROGRESS; /* Call commit handler */ +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get Fragmentation threshold + */ +static int airo_get_frag(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + + readConfigRid(local, 1); + vwrq->value = le16_to_cpu(local->config.fragThresh); + vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU); + vwrq->fixed = 1; + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set Mode of Operation + */ +static int airo_set_mode(struct net_device *dev, + struct iw_request_info *info, + __u32 *uwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + int reset = 0; + + readConfigRid(local, 1); + if (sniffing_mode(local)) + reset = 1; + + switch(*uwrq) { + case IW_MODE_ADHOC: + local->config.opmode &= ~MODE_CFG_MASK; + local->config.opmode |= MODE_STA_IBSS; + local->config.rmode &= ~RXMODE_FULL_MASK; + local->config.scanMode = SCANMODE_ACTIVE; + clear_bit (FLAG_802_11, &local->flags); + break; + case IW_MODE_INFRA: + local->config.opmode &= ~MODE_CFG_MASK; + local->config.opmode |= MODE_STA_ESS; + local->config.rmode &= ~RXMODE_FULL_MASK; + local->config.scanMode = SCANMODE_ACTIVE; + clear_bit (FLAG_802_11, &local->flags); + break; + case IW_MODE_MASTER: + local->config.opmode &= ~MODE_CFG_MASK; + local->config.opmode |= MODE_AP; + local->config.rmode &= ~RXMODE_FULL_MASK; + local->config.scanMode = SCANMODE_ACTIVE; + clear_bit (FLAG_802_11, &local->flags); + break; + case IW_MODE_REPEAT: + local->config.opmode &= ~MODE_CFG_MASK; + local->config.opmode |= MODE_AP_RPTR; + local->config.rmode &= ~RXMODE_FULL_MASK; + local->config.scanMode = SCANMODE_ACTIVE; + clear_bit (FLAG_802_11, &local->flags); + break; + case IW_MODE_MONITOR: + local->config.opmode &= ~MODE_CFG_MASK; + local->config.opmode |= MODE_STA_ESS; + local->config.rmode &= ~RXMODE_FULL_MASK; + local->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER; + local->config.scanMode = SCANMODE_PASSIVE; + set_bit (FLAG_802_11, &local->flags); + break; + default: + return -EINVAL; + } + if (reset) + set_bit (FLAG_RESET, &local->flags); + set_bit (FLAG_COMMIT, &local->flags); + + return -EINPROGRESS; /* Call commit handler */ +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get Mode of Operation + */ +static int airo_get_mode(struct net_device *dev, + struct iw_request_info *info, + __u32 *uwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + + readConfigRid(local, 1); + /* If not managed, assume it's ad-hoc */ + switch (local->config.opmode & MODE_CFG_MASK) { + case MODE_STA_ESS: + *uwrq = IW_MODE_INFRA; + break; + case MODE_AP: + *uwrq = IW_MODE_MASTER; + break; + case MODE_AP_RPTR: + *uwrq = IW_MODE_REPEAT; + break; + default: + *uwrq = IW_MODE_ADHOC; + } + + return 0; +} + +static inline int valid_index(struct airo_info *ai, int index) +{ + return (index >= 0) && (index <= ai->max_wep_idx); +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set Encryption Key + */ +static int airo_set_encode(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *dwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + int perm = (dwrq->flags & IW_ENCODE_TEMP ? 0 : 1); + __le16 currentAuthType = local->config.authType; + int rc = 0; + + if (!local->wep_capable) + return -EOPNOTSUPP; + + readConfigRid(local, 1); + + /* Basic checking: do we have a key to set ? + * Note : with the new API, it's impossible to get a NULL pointer. + * Therefore, we need to check a key size == 0 instead. + * New version of iwconfig properly set the IW_ENCODE_NOKEY flag + * when no key is present (only change flags), but older versions + * don't do it. - Jean II */ + if (dwrq->length > 0) { + wep_key_t key; + int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; + int current_index; + + /* Check the size of the key */ + if (dwrq->length > MAX_KEY_SIZE) { + return -EINVAL; + } + + current_index = get_wep_tx_idx(local); + if (current_index < 0) + current_index = 0; + + /* Check the index (none -> use current) */ + if (!valid_index(local, index)) + index = current_index; + + /* Set the length */ + if (dwrq->length > MIN_KEY_SIZE) + key.len = MAX_KEY_SIZE; + else + key.len = MIN_KEY_SIZE; + /* Check if the key is not marked as invalid */ + if(!(dwrq->flags & IW_ENCODE_NOKEY)) { + /* Cleanup */ + memset(key.key, 0, MAX_KEY_SIZE); + /* Copy the key in the driver */ + memcpy(key.key, extra, dwrq->length); + /* Send the key to the card */ + rc = set_wep_key(local, index, key.key, key.len, perm, 1); + if (rc < 0) { + airo_print_err(local->dev->name, "failed to set" + " WEP key at index %d: %d.", + index, rc); + return rc; + } + } + /* WE specify that if a valid key is set, encryption + * should be enabled (user may turn it off later) + * This is also how "iwconfig ethX key on" works */ + if((index == current_index) && (key.len > 0) && + (local->config.authType == AUTH_OPEN)) + set_auth_type(local, AUTH_ENCRYPT); + } else { + /* Do we want to just set the transmit key index ? */ + int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; + if (valid_index(local, index)) { + rc = set_wep_tx_idx(local, index, perm, 1); + if (rc < 0) { + airo_print_err(local->dev->name, "failed to set" + " WEP transmit index to %d: %d.", + index, rc); + return rc; + } + } else { + /* Don't complain if only change the mode */ + if (!(dwrq->flags & IW_ENCODE_MODE)) + return -EINVAL; + } + } + /* Read the flags */ + if (dwrq->flags & IW_ENCODE_DISABLED) + set_auth_type(local, AUTH_OPEN); /* disable encryption */ + if(dwrq->flags & IW_ENCODE_RESTRICTED) + set_auth_type(local, AUTH_SHAREDKEY); /* Only Both */ + if (dwrq->flags & IW_ENCODE_OPEN) + set_auth_type(local, AUTH_ENCRYPT); /* Only Wep */ + /* Commit the changes to flags if needed */ + if (local->config.authType != currentAuthType) + set_bit (FLAG_COMMIT, &local->flags); + return -EINPROGRESS; /* Call commit handler */ +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get Encryption Key + */ +static int airo_get_encode(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *dwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; + int wep_key_len; + u8 buf[16]; + + if (!local->wep_capable) + return -EOPNOTSUPP; + + readConfigRid(local, 1); + + /* Check encryption mode */ + switch(local->config.authType) { + case AUTH_ENCRYPT: + dwrq->flags = IW_ENCODE_OPEN; + break; + case AUTH_SHAREDKEY: + dwrq->flags = IW_ENCODE_RESTRICTED; + break; + default: + case AUTH_OPEN: + dwrq->flags = IW_ENCODE_DISABLED; + break; + } + /* We can't return the key, so set the proper flag and return zero */ + dwrq->flags |= IW_ENCODE_NOKEY; + memset(extra, 0, 16); + + /* Which key do we want ? -1 -> tx index */ + if (!valid_index(local, index)) { + index = get_wep_tx_idx(local); + if (index < 0) + index = 0; + } + dwrq->flags |= index + 1; + + /* Copy the key to the user buffer */ + wep_key_len = get_wep_key(local, index, &buf[0], sizeof(buf)); + if (wep_key_len < 0) { + dwrq->length = 0; + } else { + dwrq->length = wep_key_len; + memcpy(extra, buf, dwrq->length); + } + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set extended Encryption parameters + */ +static int airo_set_encodeext(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + struct iw_point *encoding = &wrqu->encoding; + struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; + int perm = ( encoding->flags & IW_ENCODE_TEMP ? 0 : 1 ); + __le16 currentAuthType = local->config.authType; + int idx, key_len, alg = ext->alg, set_key = 1, rc; + wep_key_t key; + + if (!local->wep_capable) + return -EOPNOTSUPP; + + readConfigRid(local, 1); + + /* Determine and validate the key index */ + idx = encoding->flags & IW_ENCODE_INDEX; + if (idx) { + if (!valid_index(local, idx - 1)) + return -EINVAL; + idx--; + } else { + idx = get_wep_tx_idx(local); + if (idx < 0) + idx = 0; + } + + if (encoding->flags & IW_ENCODE_DISABLED) + alg = IW_ENCODE_ALG_NONE; + + if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { + /* Only set transmit key index here, actual + * key is set below if needed. + */ + rc = set_wep_tx_idx(local, idx, perm, 1); + if (rc < 0) { + airo_print_err(local->dev->name, "failed to set " + "WEP transmit index to %d: %d.", + idx, rc); + return rc; + } + set_key = ext->key_len > 0 ? 1 : 0; + } + + if (set_key) { + /* Set the requested key first */ + memset(key.key, 0, MAX_KEY_SIZE); + switch (alg) { + case IW_ENCODE_ALG_NONE: + key.len = 0; + break; + case IW_ENCODE_ALG_WEP: + if (ext->key_len > MIN_KEY_SIZE) { + key.len = MAX_KEY_SIZE; + } else if (ext->key_len > 0) { + key.len = MIN_KEY_SIZE; + } else { + return -EINVAL; + } + key_len = min (ext->key_len, key.len); + memcpy(key.key, ext->key, key_len); + break; + default: + return -EINVAL; + } + if (key.len == 0) { + rc = set_wep_tx_idx(local, idx, perm, 1); + if (rc < 0) { + airo_print_err(local->dev->name, + "failed to set WEP transmit index to %d: %d.", + idx, rc); + return rc; + } + } else { + rc = set_wep_key(local, idx, key.key, key.len, perm, 1); + if (rc < 0) { + airo_print_err(local->dev->name, + "failed to set WEP key at index %d: %d.", + idx, rc); + return rc; + } + } + } + + /* Read the flags */ + if (encoding->flags & IW_ENCODE_DISABLED) + set_auth_type(local, AUTH_OPEN); /* disable encryption */ + if(encoding->flags & IW_ENCODE_RESTRICTED) + set_auth_type(local, AUTH_SHAREDKEY); /* Only Both */ + if (encoding->flags & IW_ENCODE_OPEN) + set_auth_type(local, AUTH_ENCRYPT); + /* Commit the changes to flags if needed */ + if (local->config.authType != currentAuthType) + set_bit (FLAG_COMMIT, &local->flags); + + return -EINPROGRESS; +} + + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get extended Encryption parameters + */ +static int airo_get_encodeext(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + struct iw_point *encoding = &wrqu->encoding; + struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; + int idx, max_key_len, wep_key_len; + u8 buf[16]; + + if (!local->wep_capable) + return -EOPNOTSUPP; + + readConfigRid(local, 1); + + max_key_len = encoding->length - sizeof(*ext); + if (max_key_len < 0) + return -EINVAL; + + idx = encoding->flags & IW_ENCODE_INDEX; + if (idx) { + if (!valid_index(local, idx - 1)) + return -EINVAL; + idx--; + } else { + idx = get_wep_tx_idx(local); + if (idx < 0) + idx = 0; + } + + encoding->flags = idx + 1; + memset(ext, 0, sizeof(*ext)); + + /* Check encryption mode */ + switch(local->config.authType) { + case AUTH_ENCRYPT: + encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED; + break; + case AUTH_SHAREDKEY: + encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED; + break; + default: + case AUTH_OPEN: + encoding->flags = IW_ENCODE_ALG_NONE | IW_ENCODE_DISABLED; + break; + } + /* We can't return the key, so set the proper flag and return zero */ + encoding->flags |= IW_ENCODE_NOKEY; + memset(extra, 0, 16); + + /* Copy the key to the user buffer */ + wep_key_len = get_wep_key(local, idx, &buf[0], sizeof(buf)); + if (wep_key_len < 0) { + ext->key_len = 0; + } else { + ext->key_len = wep_key_len; + memcpy(extra, buf, ext->key_len); + } + + return 0; +} + + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set extended authentication parameters + */ +static int airo_set_auth(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct airo_info *local = dev->ml_priv; + struct iw_param *param = &wrqu->param; + __le16 currentAuthType = local->config.authType; + + switch (param->flags & IW_AUTH_INDEX) { + case IW_AUTH_WPA_VERSION: + case IW_AUTH_CIPHER_PAIRWISE: + case IW_AUTH_CIPHER_GROUP: + case IW_AUTH_KEY_MGMT: + case IW_AUTH_RX_UNENCRYPTED_EAPOL: + case IW_AUTH_PRIVACY_INVOKED: + /* + * airo does not use these parameters + */ + break; + + case IW_AUTH_DROP_UNENCRYPTED: + if (param->value) { + /* Only change auth type if unencrypted */ + if (currentAuthType == AUTH_OPEN) + set_auth_type(local, AUTH_ENCRYPT); + } else { + set_auth_type(local, AUTH_OPEN); + } + + /* Commit the changes to flags if needed */ + if (local->config.authType != currentAuthType) + set_bit (FLAG_COMMIT, &local->flags); + break; + + case IW_AUTH_80211_AUTH_ALG: { + if (param->value & IW_AUTH_ALG_SHARED_KEY) { + set_auth_type(local, AUTH_SHAREDKEY); + } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) { + /* We don't know here if WEP open system or + * unencrypted mode was requested - so use the + * last mode (of these two) used last time + */ + set_auth_type(local, local->last_auth); + } else + return -EINVAL; + + /* Commit the changes to flags if needed */ + if (local->config.authType != currentAuthType) + set_bit (FLAG_COMMIT, &local->flags); + break; + } + + case IW_AUTH_WPA_ENABLED: + /* Silently accept disable of WPA */ + if (param->value > 0) + return -EOPNOTSUPP; + break; + + default: + return -EOPNOTSUPP; + } + return -EINPROGRESS; +} + + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get extended authentication parameters + */ +static int airo_get_auth(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct airo_info *local = dev->ml_priv; + struct iw_param *param = &wrqu->param; + __le16 currentAuthType = local->config.authType; + + switch (param->flags & IW_AUTH_INDEX) { + case IW_AUTH_DROP_UNENCRYPTED: + switch (currentAuthType) { + case AUTH_SHAREDKEY: + case AUTH_ENCRYPT: + param->value = 1; + break; + default: + param->value = 0; + break; + } + break; + + case IW_AUTH_80211_AUTH_ALG: + switch (currentAuthType) { + case AUTH_SHAREDKEY: + param->value = IW_AUTH_ALG_SHARED_KEY; + break; + case AUTH_ENCRYPT: + default: + param->value = IW_AUTH_ALG_OPEN_SYSTEM; + break; + } + break; + + case IW_AUTH_WPA_ENABLED: + param->value = 0; + break; + + default: + return -EOPNOTSUPP; + } + return 0; +} + + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set Tx-Power + */ +static int airo_set_txpow(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + CapabilityRid cap_rid; /* Card capability info */ + int i; + int rc = -EINVAL; + __le16 v = cpu_to_le16(vwrq->value); + + readCapabilityRid(local, &cap_rid, 1); + + if (vwrq->disabled) { + set_bit (FLAG_RADIO_OFF, &local->flags); + set_bit (FLAG_COMMIT, &local->flags); + return -EINPROGRESS; /* Call commit handler */ + } + if (vwrq->flags != IW_TXPOW_MWATT) { + return -EINVAL; + } + clear_bit (FLAG_RADIO_OFF, &local->flags); + for (i = 0; i < 8 && cap_rid.txPowerLevels[i]; i++) + if (v == cap_rid.txPowerLevels[i]) { + readConfigRid(local, 1); + local->config.txPower = v; + set_bit (FLAG_COMMIT, &local->flags); + rc = -EINPROGRESS; /* Call commit handler */ + break; + } + return rc; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get Tx-Power + */ +static int airo_get_txpow(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + + readConfigRid(local, 1); + vwrq->value = le16_to_cpu(local->config.txPower); + vwrq->fixed = 1; /* No power control */ + vwrq->disabled = test_bit(FLAG_RADIO_OFF, &local->flags); + vwrq->flags = IW_TXPOW_MWATT; + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set Retry limits + */ +static int airo_set_retry(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + int rc = -EINVAL; + + if(vwrq->disabled) { + return -EINVAL; + } + readConfigRid(local, 1); + if(vwrq->flags & IW_RETRY_LIMIT) { + __le16 v = cpu_to_le16(vwrq->value); + if(vwrq->flags & IW_RETRY_LONG) + local->config.longRetryLimit = v; + else if (vwrq->flags & IW_RETRY_SHORT) + local->config.shortRetryLimit = v; + else { + /* No modifier : set both */ + local->config.longRetryLimit = v; + local->config.shortRetryLimit = v; + } + set_bit (FLAG_COMMIT, &local->flags); + rc = -EINPROGRESS; /* Call commit handler */ + } + if(vwrq->flags & IW_RETRY_LIFETIME) { + local->config.txLifetime = cpu_to_le16(vwrq->value / 1024); + set_bit (FLAG_COMMIT, &local->flags); + rc = -EINPROGRESS; /* Call commit handler */ + } + return rc; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get Retry limits + */ +static int airo_get_retry(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + + vwrq->disabled = 0; /* Can't be disabled */ + + readConfigRid(local, 1); + /* Note : by default, display the min retry number */ + if((vwrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) { + vwrq->flags = IW_RETRY_LIFETIME; + vwrq->value = le16_to_cpu(local->config.txLifetime) * 1024; + } else if((vwrq->flags & IW_RETRY_LONG)) { + vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; + vwrq->value = le16_to_cpu(local->config.longRetryLimit); + } else { + vwrq->flags = IW_RETRY_LIMIT; + vwrq->value = le16_to_cpu(local->config.shortRetryLimit); + if(local->config.shortRetryLimit != local->config.longRetryLimit) + vwrq->flags |= IW_RETRY_SHORT; + } + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get range info + */ +static int airo_get_range(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *dwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + struct iw_range *range = (struct iw_range *) extra; + CapabilityRid cap_rid; /* Card capability info */ + int i; + int k; + + readCapabilityRid(local, &cap_rid, 1); + + dwrq->length = sizeof(struct iw_range); + memset(range, 0, sizeof(*range)); + range->min_nwid = 0x0000; + range->max_nwid = 0x0000; + range->num_channels = 14; + /* Should be based on cap_rid.country to give only + * what the current card support */ + k = 0; + for(i = 0; i < 14; i++) { + range->freq[k].i = i + 1; /* List index */ + range->freq[k].m = 100000 * + ieee80211_channel_to_frequency(i + 1, IEEE80211_BAND_2GHZ); + range->freq[k++].e = 1; /* Values in MHz -> * 10^5 * 10 */ + } + range->num_frequency = k; + + range->sensitivity = 65535; + + /* Hum... Should put the right values there */ + if (local->rssi) + range->max_qual.qual = 100; /* % */ + else + range->max_qual.qual = airo_get_max_quality(&cap_rid); + range->max_qual.level = 0x100 - 120; /* -120 dBm */ + range->max_qual.noise = 0x100 - 120; /* -120 dBm */ + + /* Experimental measurements - boundary 11/5.5 Mb/s */ + /* Note : with or without the (local->rssi), results + * are somewhat different. - Jean II */ + if (local->rssi) { + range->avg_qual.qual = 50; /* % */ + range->avg_qual.level = 0x100 - 70; /* -70 dBm */ + } else { + range->avg_qual.qual = airo_get_avg_quality(&cap_rid); + range->avg_qual.level = 0x100 - 80; /* -80 dBm */ + } + range->avg_qual.noise = 0x100 - 85; /* -85 dBm */ + + for(i = 0 ; i < 8 ; i++) { + range->bitrate[i] = cap_rid.supportedRates[i] * 500000; + if(range->bitrate[i] == 0) + break; + } + range->num_bitrates = i; + + /* Set an indication of the max TCP throughput + * in bit/s that we can expect using this interface. + * May be use for QoS stuff... Jean II */ + if(i > 2) + range->throughput = 5000 * 1000; + else + range->throughput = 1500 * 1000; + + range->min_rts = 0; + range->max_rts = AIRO_DEF_MTU; + range->min_frag = 256; + range->max_frag = AIRO_DEF_MTU; + + if(cap_rid.softCap & cpu_to_le16(2)) { + // WEP: RC4 40 bits + range->encoding_size[0] = 5; + // RC4 ~128 bits + if (cap_rid.softCap & cpu_to_le16(0x100)) { + range->encoding_size[1] = 13; + range->num_encoding_sizes = 2; + } else + range->num_encoding_sizes = 1; + range->max_encoding_tokens = + cap_rid.softCap & cpu_to_le16(0x80) ? 4 : 1; + } else { + range->num_encoding_sizes = 0; + range->max_encoding_tokens = 0; + } + range->min_pmp = 0; + range->max_pmp = 5000000; /* 5 secs */ + range->min_pmt = 0; + range->max_pmt = 65535 * 1024; /* ??? */ + range->pmp_flags = IW_POWER_PERIOD; + range->pmt_flags = IW_POWER_TIMEOUT; + range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R; + + /* Transmit Power - values are in mW */ + for(i = 0 ; i < 8 ; i++) { + range->txpower[i] = le16_to_cpu(cap_rid.txPowerLevels[i]); + if(range->txpower[i] == 0) + break; + } + range->num_txpower = i; + range->txpower_capa = IW_TXPOW_MWATT; + range->we_version_source = 19; + range->we_version_compiled = WIRELESS_EXT; + range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME; + range->retry_flags = IW_RETRY_LIMIT; + range->r_time_flags = IW_RETRY_LIFETIME; + range->min_retry = 1; + range->max_retry = 65535; + range->min_r_time = 1024; + range->max_r_time = 65535 * 1024; + + /* Event capability (kernel + driver) */ + range->event_capa[0] = (IW_EVENT_CAPA_K_0 | + IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) | + IW_EVENT_CAPA_MASK(SIOCGIWAP) | + IW_EVENT_CAPA_MASK(SIOCGIWSCAN)); + range->event_capa[1] = IW_EVENT_CAPA_K_1; + range->event_capa[4] = IW_EVENT_CAPA_MASK(IWEVTXDROP); + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set Power Management + */ +static int airo_set_power(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + + readConfigRid(local, 1); + if (vwrq->disabled) { + if (sniffing_mode(local)) + return -EINVAL; + local->config.powerSaveMode = POWERSAVE_CAM; + local->config.rmode &= ~RXMODE_MASK; + local->config.rmode |= RXMODE_BC_MC_ADDR; + set_bit (FLAG_COMMIT, &local->flags); + return -EINPROGRESS; /* Call commit handler */ + } + if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) { + local->config.fastListenDelay = cpu_to_le16((vwrq->value + 500) / 1024); + local->config.powerSaveMode = POWERSAVE_PSPCAM; + set_bit (FLAG_COMMIT, &local->flags); + } else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) { + local->config.fastListenInterval = + local->config.listenInterval = + cpu_to_le16((vwrq->value + 500) / 1024); + local->config.powerSaveMode = POWERSAVE_PSPCAM; + set_bit (FLAG_COMMIT, &local->flags); + } + switch (vwrq->flags & IW_POWER_MODE) { + case IW_POWER_UNICAST_R: + if (sniffing_mode(local)) + return -EINVAL; + local->config.rmode &= ~RXMODE_MASK; + local->config.rmode |= RXMODE_ADDR; + set_bit (FLAG_COMMIT, &local->flags); + break; + case IW_POWER_ALL_R: + if (sniffing_mode(local)) + return -EINVAL; + local->config.rmode &= ~RXMODE_MASK; + local->config.rmode |= RXMODE_BC_MC_ADDR; + set_bit (FLAG_COMMIT, &local->flags); + case IW_POWER_ON: + /* This is broken, fixme ;-) */ + break; + default: + return -EINVAL; + } + // Note : we may want to factor local->need_commit here + // Note2 : may also want to factor RXMODE_RFMON test + return -EINPROGRESS; /* Call commit handler */ +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get Power Management + */ +static int airo_get_power(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + __le16 mode; + + readConfigRid(local, 1); + mode = local->config.powerSaveMode; + if ((vwrq->disabled = (mode == POWERSAVE_CAM))) + return 0; + if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) { + vwrq->value = le16_to_cpu(local->config.fastListenDelay) * 1024; + vwrq->flags = IW_POWER_TIMEOUT; + } else { + vwrq->value = le16_to_cpu(local->config.fastListenInterval) * 1024; + vwrq->flags = IW_POWER_PERIOD; + } + if ((local->config.rmode & RXMODE_MASK) == RXMODE_ADDR) + vwrq->flags |= IW_POWER_UNICAST_R; + else + vwrq->flags |= IW_POWER_ALL_R; + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : set Sensitivity + */ +static int airo_set_sens(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + + readConfigRid(local, 1); + local->config.rssiThreshold = + cpu_to_le16(vwrq->disabled ? RSSI_DEFAULT : vwrq->value); + set_bit (FLAG_COMMIT, &local->flags); + + return -EINPROGRESS; /* Call commit handler */ +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get Sensitivity + */ +static int airo_get_sens(struct net_device *dev, + struct iw_request_info *info, + struct iw_param *vwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + + readConfigRid(local, 1); + vwrq->value = le16_to_cpu(local->config.rssiThreshold); + vwrq->disabled = (vwrq->value == 0); + vwrq->fixed = 1; + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : get AP List + * Note : this is deprecated in favor of IWSCAN + */ +static int airo_get_aplist(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *dwrq, + char *extra) +{ + struct airo_info *local = dev->ml_priv; + struct sockaddr *address = (struct sockaddr *) extra; + struct iw_quality *qual; + BSSListRid BSSList; + int i; + int loseSync = capable(CAP_NET_ADMIN) ? 1: -1; + + qual = kmalloc(IW_MAX_AP * sizeof(*qual), GFP_KERNEL); + if (!qual) + return -ENOMEM; + + for (i = 0; i < IW_MAX_AP; i++) { + u16 dBm; + if (readBSSListRid(local, loseSync, &BSSList)) + break; + loseSync = 0; + memcpy(address[i].sa_data, BSSList.bssid, ETH_ALEN); + address[i].sa_family = ARPHRD_ETHER; + dBm = le16_to_cpu(BSSList.dBm); + if (local->rssi) { + qual[i].level = 0x100 - dBm; + qual[i].qual = airo_dbm_to_pct(local->rssi, dBm); + qual[i].updated = IW_QUAL_QUAL_UPDATED + | IW_QUAL_LEVEL_UPDATED + | IW_QUAL_DBM; + } else { + qual[i].level = (dBm + 321) / 2; + qual[i].qual = 0; + qual[i].updated = IW_QUAL_QUAL_INVALID + | IW_QUAL_LEVEL_UPDATED + | IW_QUAL_DBM; + } + qual[i].noise = local->wstats.qual.noise; + if (BSSList.index == cpu_to_le16(0xffff)) + break; + } + if (!i) { + StatusRid status_rid; /* Card status info */ + readStatusRid(local, &status_rid, 1); + for (i = 0; + i < min(IW_MAX_AP, 4) && + (status_rid.bssid[i][0] + & status_rid.bssid[i][1] + & status_rid.bssid[i][2] + & status_rid.bssid[i][3] + & status_rid.bssid[i][4] + & status_rid.bssid[i][5])!=0xff && + (status_rid.bssid[i][0] + | status_rid.bssid[i][1] + | status_rid.bssid[i][2] + | status_rid.bssid[i][3] + | status_rid.bssid[i][4] + | status_rid.bssid[i][5]); + i++) { + memcpy(address[i].sa_data, + status_rid.bssid[i], ETH_ALEN); + address[i].sa_family = ARPHRD_ETHER; + } + } else { + dwrq->flags = 1; /* Should be define'd */ + memcpy(extra + sizeof(struct sockaddr) * i, qual, + sizeof(struct iw_quality) * i); + } + dwrq->length = i; + + kfree(qual); + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : Initiate Scan + */ +static int airo_set_scan(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *dwrq, + char *extra) +{ + struct airo_info *ai = dev->ml_priv; + Cmd cmd; + Resp rsp; + int wake = 0; + APListRid APList_rid_empty; + + /* Note : you may have realised that, as this is a SET operation, + * this is privileged and therefore a normal user can't + * perform scanning. + * This is not an error, while the device perform scanning, + * traffic doesn't flow, so it's a perfect DoS... + * Jean II */ + if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN; + + if (down_interruptible(&ai->sem)) + return -ERESTARTSYS; + + /* If there's already a scan in progress, don't + * trigger another one. */ + if (ai->scan_timeout > 0) + goto out; + + /* Clear APList as it affects scan results */ + memset(&APList_rid_empty, 0, sizeof(APList_rid_empty)); + APList_rid_empty.len = cpu_to_le16(sizeof(APList_rid_empty)); + disable_MAC(ai, 2); + writeAPListRid(ai, &APList_rid_empty, 0); + enable_MAC(ai, 0); + + /* Initiate a scan command */ + ai->scan_timeout = RUN_AT(3*HZ); + memset(&cmd, 0, sizeof(cmd)); + cmd.cmd=CMD_LISTBSS; + issuecommand(ai, &cmd, &rsp); + wake = 1; + +out: + up(&ai->sem); + if (wake) + wake_up_interruptible(&ai->thr_wait); + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Translate scan data returned from the card to a card independent + * format that the Wireless Tools will understand - Jean II + */ +static inline char *airo_translate_scan(struct net_device *dev, + struct iw_request_info *info, + char *current_ev, + char *end_buf, + BSSListRid *bss) +{ + struct airo_info *ai = dev->ml_priv; + struct iw_event iwe; /* Temporary buffer */ + __le16 capabilities; + char * current_val; /* For rates */ + int i; + char * buf; + u16 dBm; + + /* First entry *MUST* be the AP MAC address */ + iwe.cmd = SIOCGIWAP; + iwe.u.ap_addr.sa_family = ARPHRD_ETHER; + memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN); + current_ev = iwe_stream_add_event(info, current_ev, end_buf, + &iwe, IW_EV_ADDR_LEN); + + /* Other entries will be displayed in the order we give them */ + + /* Add the ESSID */ + iwe.u.data.length = bss->ssidLen; + if(iwe.u.data.length > 32) + iwe.u.data.length = 32; + iwe.cmd = SIOCGIWESSID; + iwe.u.data.flags = 1; + current_ev = iwe_stream_add_point(info, current_ev, end_buf, + &iwe, bss->ssid); + + /* Add mode */ + iwe.cmd = SIOCGIWMODE; + capabilities = bss->cap; + if(capabilities & (CAP_ESS | CAP_IBSS)) { + if(capabilities & CAP_ESS) + iwe.u.mode = IW_MODE_MASTER; + else + iwe.u.mode = IW_MODE_ADHOC; + current_ev = iwe_stream_add_event(info, current_ev, end_buf, + &iwe, IW_EV_UINT_LEN); + } + + /* Add frequency */ + iwe.cmd = SIOCGIWFREQ; + iwe.u.freq.m = le16_to_cpu(bss->dsChannel); + iwe.u.freq.m = 100000 * + ieee80211_channel_to_frequency(iwe.u.freq.m, IEEE80211_BAND_2GHZ); + iwe.u.freq.e = 1; + current_ev = iwe_stream_add_event(info, current_ev, end_buf, + &iwe, IW_EV_FREQ_LEN); + + dBm = le16_to_cpu(bss->dBm); + + /* Add quality statistics */ + iwe.cmd = IWEVQUAL; + if (ai->rssi) { + iwe.u.qual.level = 0x100 - dBm; + iwe.u.qual.qual = airo_dbm_to_pct(ai->rssi, dBm); + iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED + | IW_QUAL_LEVEL_UPDATED + | IW_QUAL_DBM; + } else { + iwe.u.qual.level = (dBm + 321) / 2; + iwe.u.qual.qual = 0; + iwe.u.qual.updated = IW_QUAL_QUAL_INVALID + | IW_QUAL_LEVEL_UPDATED + | IW_QUAL_DBM; + } + iwe.u.qual.noise = ai->wstats.qual.noise; + current_ev = iwe_stream_add_event(info, current_ev, end_buf, + &iwe, IW_EV_QUAL_LEN); + + /* Add encryption capability */ + iwe.cmd = SIOCGIWENCODE; + if(capabilities & CAP_PRIVACY) + iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; + else + iwe.u.data.flags = IW_ENCODE_DISABLED; + iwe.u.data.length = 0; + current_ev = iwe_stream_add_point(info, current_ev, end_buf, + &iwe, bss->ssid); + + /* Rate : stuffing multiple values in a single event require a bit + * more of magic - Jean II */ + current_val = current_ev + iwe_stream_lcp_len(info); + + iwe.cmd = SIOCGIWRATE; + /* Those two flags are ignored... */ + iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; + /* Max 8 values */ + for(i = 0 ; i < 8 ; i++) { + /* NULL terminated */ + if(bss->rates[i] == 0) + break; + /* Bit rate given in 500 kb/s units (+ 0x80) */ + iwe.u.bitrate.value = ((bss->rates[i] & 0x7f) * 500000); + /* Add new value to event */ + current_val = iwe_stream_add_value(info, current_ev, + current_val, end_buf, + &iwe, IW_EV_PARAM_LEN); + } + /* Check if we added any event */ + if ((current_val - current_ev) > iwe_stream_lcp_len(info)) + current_ev = current_val; + + /* Beacon interval */ + buf = kmalloc(30, GFP_KERNEL); + if (buf) { + iwe.cmd = IWEVCUSTOM; + sprintf(buf, "bcn_int=%d", bss->beaconInterval); + iwe.u.data.length = strlen(buf); + current_ev = iwe_stream_add_point(info, current_ev, end_buf, + &iwe, buf); + kfree(buf); + } + + /* Put WPA/RSN Information Elements into the event stream */ + if (test_bit(FLAG_WPA_CAPABLE, &ai->flags)) { + unsigned int num_null_ies = 0; + u16 length = sizeof (bss->extra.iep); + u8 *ie = (void *)&bss->extra.iep; + + while ((length >= 2) && (num_null_ies < 2)) { + if (2 + ie[1] > length) { + /* Invalid element, don't continue parsing IE */ + break; + } + + switch (ie[0]) { + case WLAN_EID_SSID: + /* Two zero-length SSID elements + * mean we're done parsing elements */ + if (!ie[1]) + num_null_ies++; + break; + + case WLAN_EID_VENDOR_SPECIFIC: + if (ie[1] >= 4 && + ie[2] == 0x00 && + ie[3] == 0x50 && + ie[4] == 0xf2 && + ie[5] == 0x01) { + iwe.cmd = IWEVGENIE; + /* 64 is an arbitrary cut-off */ + iwe.u.data.length = min(ie[1] + 2, + 64); + current_ev = iwe_stream_add_point( + info, current_ev, + end_buf, &iwe, ie); + } + break; + + case WLAN_EID_RSN: + iwe.cmd = IWEVGENIE; + /* 64 is an arbitrary cut-off */ + iwe.u.data.length = min(ie[1] + 2, 64); + current_ev = iwe_stream_add_point( + info, current_ev, end_buf, + &iwe, ie); + break; + + default: + break; + } + + length -= 2 + ie[1]; + ie += 2 + ie[1]; + } + } + return current_ev; +} + +/*------------------------------------------------------------------*/ +/* + * Wireless Handler : Read Scan Results + */ +static int airo_get_scan(struct net_device *dev, + struct iw_request_info *info, + struct iw_point *dwrq, + char *extra) +{ + struct airo_info *ai = dev->ml_priv; + BSSListElement *net; + int err = 0; + char *current_ev = extra; + + /* If a scan is in-progress, return -EAGAIN */ + if (ai->scan_timeout > 0) + return -EAGAIN; + + if (down_interruptible(&ai->sem)) + return -EAGAIN; + + list_for_each_entry (net, &ai->network_list, list) { + /* Translate to WE format this entry */ + current_ev = airo_translate_scan(dev, info, current_ev, + extra + dwrq->length, + &net->bss); + + /* Check if there is space for one more entry */ + if((extra + dwrq->length - current_ev) <= IW_EV_ADDR_LEN) { + /* Ask user space to try again with a bigger buffer */ + err = -E2BIG; + goto out; + } + } + + /* Length of data */ + dwrq->length = (current_ev - extra); + dwrq->flags = 0; /* todo */ + +out: + up(&ai->sem); + return err; +} + +/*------------------------------------------------------------------*/ +/* + * Commit handler : called after a bunch of SET operations + */ +static int airo_config_commit(struct net_device *dev, + struct iw_request_info *info, /* NULL */ + void *zwrq, /* NULL */ + char *extra) /* NULL */ +{ + struct airo_info *local = dev->ml_priv; + + if (!test_bit (FLAG_COMMIT, &local->flags)) + return 0; + + /* Some of the "SET" function may have modified some of the + * parameters. It's now time to commit them in the card */ + disable_MAC(local, 1); + if (test_bit (FLAG_RESET, &local->flags)) { + SsidRid SSID_rid; + + readSsidRid(local, &SSID_rid); + if (test_bit(FLAG_MPI,&local->flags)) + setup_card(local, dev->dev_addr, 1 ); + else + reset_airo_card(dev); + disable_MAC(local, 1); + writeSsidRid(local, &SSID_rid, 1); + writeAPListRid(local, &local->APList, 1); + } + if (down_interruptible(&local->sem)) + return -ERESTARTSYS; + writeConfigRid(local, 0); + enable_MAC(local, 0); + if (test_bit (FLAG_RESET, &local->flags)) + airo_set_promisc(local); + else + up(&local->sem); + + return 0; +} + +/*------------------------------------------------------------------*/ +/* + * Structures to export the Wireless Handlers + */ + +static const struct iw_priv_args airo_private_args[] = { +/*{ cmd, set_args, get_args, name } */ + { AIROIOCTL, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl), + IW_PRIV_TYPE_BYTE | 2047, "airoioctl" }, + { AIROIDIFC, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl), + IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "airoidifc" }, +}; + +static const iw_handler airo_handler[] = +{ + (iw_handler) airo_config_commit, /* SIOCSIWCOMMIT */ + (iw_handler) airo_get_name, /* SIOCGIWNAME */ + (iw_handler) NULL, /* SIOCSIWNWID */ + (iw_handler) NULL, /* SIOCGIWNWID */ + (iw_handler) airo_set_freq, /* SIOCSIWFREQ */ + (iw_handler) airo_get_freq, /* SIOCGIWFREQ */ + (iw_handler) airo_set_mode, /* SIOCSIWMODE */ + (iw_handler) airo_get_mode, /* SIOCGIWMODE */ + (iw_handler) airo_set_sens, /* SIOCSIWSENS */ + (iw_handler) airo_get_sens, /* SIOCGIWSENS */ + (iw_handler) NULL, /* SIOCSIWRANGE */ + (iw_handler) airo_get_range, /* SIOCGIWRANGE */ + (iw_handler) NULL, /* SIOCSIWPRIV */ + (iw_handler) NULL, /* SIOCGIWPRIV */ + (iw_handler) NULL, /* SIOCSIWSTATS */ + (iw_handler) NULL, /* SIOCGIWSTATS */ + iw_handler_set_spy, /* SIOCSIWSPY */ + iw_handler_get_spy, /* SIOCGIWSPY */ + iw_handler_set_thrspy, /* SIOCSIWTHRSPY */ + iw_handler_get_thrspy, /* SIOCGIWTHRSPY */ + (iw_handler) airo_set_wap, /* SIOCSIWAP */ + (iw_handler) airo_get_wap, /* SIOCGIWAP */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) airo_get_aplist, /* SIOCGIWAPLIST */ + (iw_handler) airo_set_scan, /* SIOCSIWSCAN */ + (iw_handler) airo_get_scan, /* SIOCGIWSCAN */ + (iw_handler) airo_set_essid, /* SIOCSIWESSID */ + (iw_handler) airo_get_essid, /* SIOCGIWESSID */ + (iw_handler) airo_set_nick, /* SIOCSIWNICKN */ + (iw_handler) airo_get_nick, /* SIOCGIWNICKN */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) airo_set_rate, /* SIOCSIWRATE */ + (iw_handler) airo_get_rate, /* SIOCGIWRATE */ + (iw_handler) airo_set_rts, /* SIOCSIWRTS */ + (iw_handler) airo_get_rts, /* SIOCGIWRTS */ + (iw_handler) airo_set_frag, /* SIOCSIWFRAG */ + (iw_handler) airo_get_frag, /* SIOCGIWFRAG */ + (iw_handler) airo_set_txpow, /* SIOCSIWTXPOW */ + (iw_handler) airo_get_txpow, /* SIOCGIWTXPOW */ + (iw_handler) airo_set_retry, /* SIOCSIWRETRY */ + (iw_handler) airo_get_retry, /* SIOCGIWRETRY */ + (iw_handler) airo_set_encode, /* SIOCSIWENCODE */ + (iw_handler) airo_get_encode, /* SIOCGIWENCODE */ + (iw_handler) airo_set_power, /* SIOCSIWPOWER */ + (iw_handler) airo_get_power, /* SIOCGIWPOWER */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) NULL, /* -- hole -- */ + (iw_handler) NULL, /* SIOCSIWGENIE */ + (iw_handler) NULL, /* SIOCGIWGENIE */ + (iw_handler) airo_set_auth, /* SIOCSIWAUTH */ + (iw_handler) airo_get_auth, /* SIOCGIWAUTH */ + (iw_handler) airo_set_encodeext, /* SIOCSIWENCODEEXT */ + (iw_handler) airo_get_encodeext, /* SIOCGIWENCODEEXT */ + (iw_handler) NULL, /* SIOCSIWPMKSA */ +}; + +/* Note : don't describe AIROIDIFC and AIROOLDIDIFC in here. + * We want to force the use of the ioctl code, because those can't be + * won't work the iw_handler code (because they simultaneously read + * and write data and iw_handler can't do that). + * Note that it's perfectly legal to read/write on a single ioctl command, + * you just can't use iwpriv and need to force it via the ioctl handler. + * Jean II */ +static const iw_handler airo_private_handler[] = +{ + NULL, /* SIOCIWFIRSTPRIV */ +}; + +static const struct iw_handler_def airo_handler_def = +{ + .num_standard = ARRAY_SIZE(airo_handler), + .num_private = ARRAY_SIZE(airo_private_handler), + .num_private_args = ARRAY_SIZE(airo_private_args), + .standard = airo_handler, + .private = airo_private_handler, + .private_args = airo_private_args, + .get_wireless_stats = airo_get_wireless_stats, +}; + +/* + * This defines the configuration part of the Wireless Extensions + * Note : irq and spinlock protection will occur in the subroutines + * + * TODO : + * o Check input value more carefully and fill correct values in range + * o Test and shakeout the bugs (if any) + * + * Jean II + * + * Javier Achirica did a great job of merging code from the unnamed CISCO + * developer that added support for flashing the card. + */ +static int airo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) +{ + int rc = 0; + struct airo_info *ai = dev->ml_priv; + + if (ai->power.event) + return 0; + + switch (cmd) { +#ifdef CISCO_EXT + case AIROIDIFC: +#ifdef AIROOLDIDIFC + case AIROOLDIDIFC: +#endif + { + int val = AIROMAGIC; + aironet_ioctl com; + if (copy_from_user(&com,rq->ifr_data,sizeof(com))) + rc = -EFAULT; + else if (copy_to_user(com.data,(char *)&val,sizeof(val))) + rc = -EFAULT; + } + break; + + case AIROIOCTL: +#ifdef AIROOLDIOCTL + case AIROOLDIOCTL: +#endif + /* Get the command struct and hand it off for evaluation by + * the proper subfunction + */ + { + aironet_ioctl com; + if (copy_from_user(&com,rq->ifr_data,sizeof(com))) { + rc = -EFAULT; + break; + } + + /* Separate R/W functions bracket legality here + */ + if ( com.command == AIRORSWVERSION ) { + if (copy_to_user(com.data, swversion, sizeof(swversion))) + rc = -EFAULT; + else + rc = 0; + } + else if ( com.command <= AIRORRID) + rc = readrids(dev,&com); + else if ( com.command >= AIROPCAP && com.command <= (AIROPLEAPUSR+2) ) + rc = writerids(dev,&com); + else if ( com.command >= AIROFLSHRST && com.command <= AIRORESTART ) + rc = flashcard(dev,&com); + else + rc = -EINVAL; /* Bad command in ioctl */ + } + break; +#endif /* CISCO_EXT */ + + // All other calls are currently unsupported + default: + rc = -EOPNOTSUPP; + } + return rc; +} + +/* + * Get the Wireless stats out of the driver + * Note : irq and spinlock protection will occur in the subroutines + * + * TODO : + * o Check if work in Ad-Hoc mode (otherwise, use SPY, as in wvlan_cs) + * + * Jean + */ +static void airo_read_wireless_stats(struct airo_info *local) +{ + StatusRid status_rid; + StatsRid stats_rid; + CapabilityRid cap_rid; + __le32 *vals = stats_rid.vals; + + /* Get stats out of the card */ + clear_bit(JOB_WSTATS, &local->jobs); + if (local->power.event) { + up(&local->sem); + return; + } + readCapabilityRid(local, &cap_rid, 0); + readStatusRid(local, &status_rid, 0); + readStatsRid(local, &stats_rid, RID_STATS, 0); + up(&local->sem); + + /* The status */ + local->wstats.status = le16_to_cpu(status_rid.mode); + + /* Signal quality and co */ + if (local->rssi) { + local->wstats.qual.level = + airo_rssi_to_dbm(local->rssi, + le16_to_cpu(status_rid.sigQuality)); + /* normalizedSignalStrength appears to be a percentage */ + local->wstats.qual.qual = + le16_to_cpu(status_rid.normalizedSignalStrength); + } else { + local->wstats.qual.level = + (le16_to_cpu(status_rid.normalizedSignalStrength) + 321) / 2; + local->wstats.qual.qual = airo_get_quality(&status_rid, &cap_rid); + } + if (le16_to_cpu(status_rid.len) >= 124) { + local->wstats.qual.noise = 0x100 - status_rid.noisedBm; + local->wstats.qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM; + } else { + local->wstats.qual.noise = 0; + local->wstats.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | IW_QUAL_NOISE_INVALID | IW_QUAL_DBM; + } + + /* Packets discarded in the wireless adapter due to wireless + * specific problems */ + local->wstats.discard.nwid = le32_to_cpu(vals[56]) + + le32_to_cpu(vals[57]) + + le32_to_cpu(vals[58]); /* SSID Mismatch */ + local->wstats.discard.code = le32_to_cpu(vals[6]);/* RxWepErr */ + local->wstats.discard.fragment = le32_to_cpu(vals[30]); + local->wstats.discard.retries = le32_to_cpu(vals[10]); + local->wstats.discard.misc = le32_to_cpu(vals[1]) + + le32_to_cpu(vals[32]); + local->wstats.miss.beacon = le32_to_cpu(vals[34]); +} + +static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev) +{ + struct airo_info *local = dev->ml_priv; + + if (!test_bit(JOB_WSTATS, &local->jobs)) { + /* Get stats out of the card if available */ + if (down_trylock(&local->sem) != 0) { + set_bit(JOB_WSTATS, &local->jobs); + wake_up_interruptible(&local->thr_wait); + } else + airo_read_wireless_stats(local); + } + + return &local->wstats; +} + +#ifdef CISCO_EXT +/* + * This just translates from driver IOCTL codes to the command codes to + * feed to the radio's host interface. Things can be added/deleted + * as needed. This represents the READ side of control I/O to + * the card + */ +static int readrids(struct net_device *dev, aironet_ioctl *comp) { + unsigned short ridcode; + unsigned char *iobuf; + int len; + struct airo_info *ai = dev->ml_priv; + + if (test_bit(FLAG_FLASHING, &ai->flags)) + return -EIO; + + switch(comp->command) + { + case AIROGCAP: ridcode = RID_CAPABILITIES; break; + case AIROGCFG: ridcode = RID_CONFIG; + if (test_bit(FLAG_COMMIT, &ai->flags)) { + disable_MAC (ai, 1); + writeConfigRid (ai, 1); + enable_MAC(ai, 1); + } + break; + case AIROGSLIST: ridcode = RID_SSID; break; + case AIROGVLIST: ridcode = RID_APLIST; break; + case AIROGDRVNAM: ridcode = RID_DRVNAME; break; + case AIROGEHTENC: ridcode = RID_ETHERENCAP; break; + case AIROGWEPKTMP: ridcode = RID_WEP_TEMP; + /* Only super-user can read WEP keys */ + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + break; + case AIROGWEPKNV: ridcode = RID_WEP_PERM; + /* Only super-user can read WEP keys */ + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + break; + case AIROGSTAT: ridcode = RID_STATUS; break; + case AIROGSTATSD32: ridcode = RID_STATSDELTA; break; + case AIROGSTATSC32: ridcode = RID_STATS; break; + case AIROGMICSTATS: + if (copy_to_user(comp->data, &ai->micstats, + min((int)comp->len,(int)sizeof(ai->micstats)))) + return -EFAULT; + return 0; + case AIRORRID: ridcode = comp->ridnum; break; + default: + return -EINVAL; + } + + if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL) + return -ENOMEM; + + PC4500_readrid(ai,ridcode,iobuf,RIDSIZE, 1); + /* get the count of bytes in the rid docs say 1st 2 bytes is it. + * then return it to the user + * 9/22/2000 Honor user given length + */ + len = comp->len; + + if (copy_to_user(comp->data, iobuf, min(len, (int)RIDSIZE))) { + kfree (iobuf); + return -EFAULT; + } + kfree (iobuf); + return 0; +} + +/* + * Danger Will Robinson write the rids here + */ + +static int writerids(struct net_device *dev, aironet_ioctl *comp) { + struct airo_info *ai = dev->ml_priv; + int ridcode; + int enabled; + static int (* writer)(struct airo_info *, u16 rid, const void *, int, int); + unsigned char *iobuf; + + /* Only super-user can write RIDs */ + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + if (test_bit(FLAG_FLASHING, &ai->flags)) + return -EIO; + + ridcode = 0; + writer = do_writerid; + + switch(comp->command) + { + case AIROPSIDS: ridcode = RID_SSID; break; + case AIROPCAP: ridcode = RID_CAPABILITIES; break; + case AIROPAPLIST: ridcode = RID_APLIST; break; + case AIROPCFG: ai->config.len = 0; + clear_bit(FLAG_COMMIT, &ai->flags); + ridcode = RID_CONFIG; break; + case AIROPWEPKEYNV: ridcode = RID_WEP_PERM; break; + case AIROPLEAPUSR: ridcode = RID_LEAPUSERNAME; break; + case AIROPLEAPPWD: ridcode = RID_LEAPPASSWORD; break; + case AIROPWEPKEY: ridcode = RID_WEP_TEMP; writer = PC4500_writerid; + break; + case AIROPLEAPUSR+1: ridcode = 0xFF2A; break; + case AIROPLEAPUSR+2: ridcode = 0xFF2B; break; + + /* this is not really a rid but a command given to the card + * same with MAC off + */ + case AIROPMACON: + if (enable_MAC(ai, 1) != 0) + return -EIO; + return 0; + + /* + * Evidently this code in the airo driver does not get a symbol + * as disable_MAC. it's probably so short the compiler does not gen one. + */ + case AIROPMACOFF: + disable_MAC(ai, 1); + return 0; + + /* This command merely clears the counts does not actually store any data + * only reads rid. But as it changes the cards state, I put it in the + * writerid routines. + */ + case AIROPSTCLR: + if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL) + return -ENOMEM; + + PC4500_readrid(ai,RID_STATSDELTACLEAR,iobuf,RIDSIZE, 1); + + enabled = ai->micstats.enabled; + memset(&ai->micstats,0,sizeof(ai->micstats)); + ai->micstats.enabled = enabled; + + if (copy_to_user(comp->data, iobuf, + min((int)comp->len, (int)RIDSIZE))) { + kfree (iobuf); + return -EFAULT; + } + kfree (iobuf); + return 0; + + default: + return -EOPNOTSUPP; /* Blarg! */ + } + if(comp->len > RIDSIZE) + return -EINVAL; + + if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL) + return -ENOMEM; + + if (copy_from_user(iobuf,comp->data,comp->len)) { + kfree (iobuf); + return -EFAULT; + } + + if (comp->command == AIROPCFG) { + ConfigRid *cfg = (ConfigRid *)iobuf; + + if (test_bit(FLAG_MIC_CAPABLE, &ai->flags)) + cfg->opmode |= MODE_MIC; + + if ((cfg->opmode & MODE_CFG_MASK) == MODE_STA_IBSS) + set_bit (FLAG_ADHOC, &ai->flags); + else + clear_bit (FLAG_ADHOC, &ai->flags); + } + + if((*writer)(ai, ridcode, iobuf,comp->len,1)) { + kfree (iobuf); + return -EIO; + } + kfree (iobuf); + return 0; +} + +/***************************************************************************** + * Ancillary flash / mod functions much black magic lurkes here * + ***************************************************************************** + */ + +/* + * Flash command switch table + */ + +static int flashcard(struct net_device *dev, aironet_ioctl *comp) { + int z; + + /* Only super-user can modify flash */ + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + switch(comp->command) + { + case AIROFLSHRST: + return cmdreset((struct airo_info *)dev->ml_priv); + + case AIROFLSHSTFL: + if (!AIRO_FLASH(dev) && + (AIRO_FLASH(dev) = kmalloc(FLASHSIZE, GFP_KERNEL)) == NULL) + return -ENOMEM; + return setflashmode((struct airo_info *)dev->ml_priv); + + case AIROFLSHGCHR: /* Get char from aux */ + if(comp->len != sizeof(int)) + return -EINVAL; + if (copy_from_user(&z,comp->data,comp->len)) + return -EFAULT; + return flashgchar((struct airo_info *)dev->ml_priv, z, 8000); + + case AIROFLSHPCHR: /* Send char to card. */ + if(comp->len != sizeof(int)) + return -EINVAL; + if (copy_from_user(&z,comp->data,comp->len)) + return -EFAULT; + return flashpchar((struct airo_info *)dev->ml_priv, z, 8000); + + case AIROFLPUTBUF: /* Send 32k to card */ + if (!AIRO_FLASH(dev)) + return -ENOMEM; + if(comp->len > FLASHSIZE) + return -EINVAL; + if (copy_from_user(AIRO_FLASH(dev), comp->data, comp->len)) + return -EFAULT; + + flashputbuf((struct airo_info *)dev->ml_priv); + return 0; + + case AIRORESTART: + if (flashrestart((struct airo_info *)dev->ml_priv, dev)) + return -EIO; + return 0; + } + return -EINVAL; +} + +#define FLASH_COMMAND 0x7e7e + +/* + * STEP 1) + * Disable MAC and do soft reset on + * card. + */ + +static int cmdreset(struct airo_info *ai) { + disable_MAC(ai, 1); + + if(!waitbusy (ai)){ + airo_print_info(ai->dev->name, "Waitbusy hang before RESET"); + return -EBUSY; + } + + OUT4500(ai,COMMAND,CMD_SOFTRESET); + + ssleep(1); /* WAS 600 12/7/00 */ + + if(!waitbusy (ai)){ + airo_print_info(ai->dev->name, "Waitbusy hang AFTER RESET"); + return -EBUSY; + } + return 0; +} + +/* STEP 2) + * Put the card in legendary flash + * mode + */ + +static int setflashmode (struct airo_info *ai) { + set_bit (FLAG_FLASHING, &ai->flags); + + OUT4500(ai, SWS0, FLASH_COMMAND); + OUT4500(ai, SWS1, FLASH_COMMAND); + if (probe) { + OUT4500(ai, SWS0, FLASH_COMMAND); + OUT4500(ai, COMMAND,0x10); + } else { + OUT4500(ai, SWS2, FLASH_COMMAND); + OUT4500(ai, SWS3, FLASH_COMMAND); + OUT4500(ai, COMMAND,0); + } + msleep(500); /* 500ms delay */ + + if(!waitbusy(ai)) { + clear_bit (FLAG_FLASHING, &ai->flags); + airo_print_info(ai->dev->name, "Waitbusy hang after setflash mode"); + return -EIO; + } + return 0; +} + +/* Put character to SWS0 wait for dwelltime + * x 50us for echo . + */ + +static int flashpchar(struct airo_info *ai,int byte,int dwelltime) { + int echo; + int waittime; + + byte |= 0x8000; + + if(dwelltime == 0 ) + dwelltime = 200; + + waittime=dwelltime; + + /* Wait for busy bit d15 to go false indicating buffer empty */ + while ((IN4500 (ai, SWS0) & 0x8000) && waittime > 0) { + udelay (50); + waittime -= 50; + } + + /* timeout for busy clear wait */ + if(waittime <= 0 ){ + airo_print_info(ai->dev->name, "flash putchar busywait timeout!"); + return -EBUSY; + } + + /* Port is clear now write byte and wait for it to echo back */ + do { + OUT4500(ai,SWS0,byte); + udelay(50); + dwelltime -= 50; + echo = IN4500(ai,SWS1); + } while (dwelltime >= 0 && echo != byte); + + OUT4500(ai,SWS1,0); + + return (echo == byte) ? 0 : -EIO; +} + +/* + * Get a character from the card matching matchbyte + * Step 3) + */ +static int flashgchar(struct airo_info *ai,int matchbyte,int dwelltime){ + int rchar; + unsigned char rbyte=0; + + do { + rchar = IN4500(ai,SWS1); + + if(dwelltime && !(0x8000 & rchar)){ + dwelltime -= 10; + mdelay(10); + continue; + } + rbyte = 0xff & rchar; + + if( (rbyte == matchbyte) && (0x8000 & rchar) ){ + OUT4500(ai,SWS1,0); + return 0; + } + if( rbyte == 0x81 || rbyte == 0x82 || rbyte == 0x83 || rbyte == 0x1a || 0xffff == rchar) + break; + OUT4500(ai,SWS1,0); + + }while(dwelltime > 0); + return -EIO; +} + +/* + * Transfer 32k of firmware data from user buffer to our buffer and + * send to the card + */ + +static int flashputbuf(struct airo_info *ai){ + int nwords; + + /* Write stuff */ + if (test_bit(FLAG_MPI,&ai->flags)) + memcpy_toio(ai->pciaux + 0x8000, ai->flash, FLASHSIZE); + else { + OUT4500(ai,AUXPAGE,0x100); + OUT4500(ai,AUXOFF,0); + + for(nwords=0;nwords != FLASHSIZE / 2;nwords++){ + OUT4500(ai,AUXDATA,ai->flash[nwords] & 0xffff); + } + } + OUT4500(ai,SWS0,0x8000); + + return 0; +} + +/* + * + */ +static int flashrestart(struct airo_info *ai,struct net_device *dev){ + int i,status; + + ssleep(1); /* Added 12/7/00 */ + clear_bit (FLAG_FLASHING, &ai->flags); + if (test_bit(FLAG_MPI, &ai->flags)) { + status = mpi_init_descriptors(ai); + if (status != SUCCESS) + return status; + } + status = setup_card(ai, dev->dev_addr, 1); + + if (!test_bit(FLAG_MPI,&ai->flags)) + for( i = 0; i < MAX_FIDS; i++ ) { + ai->fids[i] = transmit_allocate + ( ai, AIRO_DEF_MTU, i >= MAX_FIDS / 2 ); + } + + ssleep(1); /* Added 12/7/00 */ + return status; +} +#endif /* CISCO_EXT */ + +/* + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 2 + of the License, or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + In addition: + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + 3. The name of the author may not be used to endorse or promote + products derived from this software without specific prior written + permission. + + THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, + INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. +*/ + +module_init(airo_init_module); +module_exit(airo_cleanup_module); |