/* orinoco.c - (formerly known as dldwd_cs.c and orinoco_cs.c) * * A driver for Hermes or Prism 2 chipset based PCMCIA wireless * adaptors, with Lucent/Agere, Intersil or Symbol firmware. * * Current maintainers (as of 29 September 2003) are: * Pavel Roskin * and David Gibson * * (C) Copyright David Gibson, IBM Corporation 2001-2003. * Copyright (C) 2000 David Gibson, Linuxcare Australia. * With some help from : * Copyright (C) 2001 Jean Tourrilhes, HP Labs * Copyright (C) 2001 Benjamin Herrenschmidt * * Based on dummy_cs.c 1.27 2000/06/12 21:27:25 * * Portions based on wvlan_cs.c 1.0.6, Copyright Andreas Neuhaus * http://www.stud.fh-dortmund.de/~andy/wvlan/ * * The contents of this file are subject to the Mozilla Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License * at http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See * the License for the specific language governing rights and * limitations under the License. * * The initial developer of the original code is David A. Hinds * . Portions created by David * A. Hinds are Copyright (C) 1999 David A. Hinds. All Rights * Reserved. * * Alternatively, the contents of this file may be used under the * terms of the GNU General Public License version 2 (the "GPL"), in * which case the provisions of the GPL are applicable instead of the * above. If you wish to allow the use of your version of this file * only under the terms of the GPL and not to allow others to use your * version of this file under the MPL, indicate your decision by * deleting the provisions above and replace them with the notice and * other provisions required by the GPL. If you do not delete the * provisions above, a recipient may use your version of this file * under either the MPL or the GPL. */ /* * v0.01 -> v0.02 - 21/3/2001 - Jean II * o Allow to use regular ethX device name instead of dldwdX * o Warning on IBSS with ESSID=any for firmware 6.06 * o Put proper range.throughput values (optimistic) * o IWSPY support (IOCTL and stat gather in Rx path) * o Allow setting frequency in Ad-Hoc mode * o Disable WEP setting if !has_wep to work on old firmware * o Fix txpower range * o Start adding support for Samsung/Compaq firmware * * v0.02 -> v0.03 - 23/3/2001 - Jean II * o Start adding Symbol support - need to check all that * o Fix Prism2/Symbol WEP to accept 128 bits keys * o Add Symbol WEP (add authentication type) * o Add Prism2/Symbol rate * o Add PM timeout (holdover duration) * o Enable "iwconfig eth0 key off" and friends (toggle flags) * o Enable "iwconfig eth0 power unicast/all" (toggle flags) * o Try with an Intel card. It report firmware 1.01, behave like * an antiquated firmware, however on windows it says 2.00. Yuck ! * o Workaround firmware bug in allocate buffer (Intel 1.01) * o Finish external renaming to orinoco... * o Testing with various Wavelan firmwares * * v0.03 -> v0.04 - 30/3/2001 - Jean II * o Update to Wireless 11 -> add retry limit/lifetime support * o Tested with a D-Link DWL 650 card, fill in firmware support * o Warning on Vcc mismatch (D-Link 3.3v card in Lucent 5v only slot) * o Fixed the Prism2 WEP bugs that I introduced in v0.03 :-( * It works on D-Link *only* after a tcpdump. Weird... * And still doesn't work on Intel card. Grrrr... * o Update the mode after a setport3 * o Add preamble setting for Symbol cards (not yet enabled) * o Don't complain as much about Symbol cards... * * v0.04 -> v0.04b - 22/4/2001 - David Gibson * o Removed the 'eth' parameter - always use ethXX as the * interface name instead of dldwdXX. The other was racy * anyway. * o Clean up RID definitions in hermes.h, other cleanups * * v0.04b -> v0.04c - 24/4/2001 - Jean II * o Tim Hurley reported a D-Link card * with vendor 02 and firmware 0.08. Added in the capabilities... * o Tested Lucent firmware 7.28, everything works... * * v0.04c -> v0.05 - 3/5/2001 - Benjamin Herrenschmidt * o Spin-off Pcmcia code. This file is renamed orinoco.c, * and orinoco_cs.c now contains only the Pcmcia specific stuff * o Add Airport driver support on top of orinoco.c (see airport.c) * * v0.05 -> v0.05a - 4/5/2001 - Jean II * o Revert to old Pcmcia code to fix breakage of Ben's changes... * * v0.05a -> v0.05b - 4/5/2001 - Jean II * o add module parameter 'ignore_cis_vcc' for D-Link @ 5V * o D-Link firmware doesn't support multicast. We just print a few * error messages, but otherwise everything works... * o For David : set/getport3 works fine, just upgrade iwpriv... * * v0.05b -> v0.05c - 5/5/2001 - Benjamin Herrenschmidt * o Adapt airport.c to latest changes in orinoco.c * o Remove deferred power enabling code * * v0.05c -> v0.05d - 5/5/2001 - Jean II * o Workaround to SNAP decapsulate frame from Linksys AP * original patch from : Dong Liu * (note : the memcmp bug was mine - fixed) * o Remove set_retry stuff, no firmware support it (bloat--). * * v0.05d -> v0.06 - 25/5/2001 - Jean II * Original patch from "Hong Lin" , * "Ian Kinner" * and "David Smith" * o Init of priv->tx_rate_ctrl in firmware specific section. * o Prism2/Symbol rate, upto should be 0xF and not 0x15. Doh ! * o Spectrum card always need cor_reset (for every reset) * o Fix cor_reset to not lose bit 7 in the register * o flush_stale_links to remove zombie Pcmcia instances * o Ack previous hermes event before reset * Me (with my little hands) * o Allow orinoco.c to call cor_reset via priv->card_reset_handler * o Add priv->need_card_reset to toggle this feature * o Fix various buglets when setting WEP in Symbol firmware * Now, encryption is fully functional on Symbol cards. Youpi ! * * v0.06 -> v0.06b - 25/5/2001 - Jean II * o IBSS on Symbol use port_mode = 4. Please don't ask... * * v0.06b -> v0.06c - 29/5/2001 - Jean II * o Show first spy address in /proc/net/wireless for IBSS mode as well * * v0.06c -> v0.06d - 6/7/2001 - David Gibson * o Change a bunch of KERN_INFO messages to KERN_DEBUG, as per Linus' * wishes to reduce the number of unnecessary messages. * o Removed bogus message on CRC error. * o Merged fixes for v0.08 Prism 2 firmware from William Waghorn * * o Slight cleanup/re-arrangement of firmware detection code. * * v0.06d -> v0.06e - 1/8/2001 - David Gibson * o Removed some redundant global initializers (orinoco_cs.c). * o Added some module metadata * * v0.06e -> v0.06f - 14/8/2001 - David Gibson * o Wording fix to license * o Added a 'use_alternate_encaps' module parameter for APs which need an * oui of 00:00:00. We really need a better way of handling this, but * the module flag is better than nothing for now. * * v0.06f -> v0.07 - 20/8/2001 - David Gibson * o Removed BAP error retries from hermes_bap_seek(). For Tx we now * let the upper layers handle the retry, we retry explicitly in the * Rx path, but don't make as much noise about it. * o Firmware detection cleanups. * * v0.07 -> v0.07a - 1/10/3001 - Jean II * o Add code to read Symbol firmware revision, inspired by latest code * in Spectrum24 by Lee John Keyser-Allen - Thanks Lee ! * o Thanks to Jared Valentine for "providing" me * a 3Com card with a recent firmware, fill out Symbol firmware * capabilities of latest rev (2.20), as well as older Symbol cards. * o Disable Power Management in newer Symbol firmware, the API * has changed (documentation needed). * * v0.07a -> v0.08 - 3/10/2001 - David Gibson * o Fixed a possible buffer overrun found by the Stanford checker (in * dldwd_ioctl_setiwencode()). Can only be called by root anyway, so not * a big problem. * o Turned has_big_wep on for Intersil cards. That's not true for all of * them but we should at least let the capable ones try. * o Wait for BUSY to clear at the beginning of hermes_bap_seek(). I * realized that my assumption that the driver's serialization * would prevent the BAP being busy on entry was possibly false, because * things other than seeks may make the BAP busy. * o Use "alternate" (oui 00:00:00) encapsulation by default. * Setting use_old_encaps will mimic the old behaviour, but I think we * will be able to eliminate this. * o Don't try to make __initdata const (the version string). This can't * work because of the way the __initdata sectioning works. * o Added MODULE_LICENSE tags. * o Support for PLX (transparent PCMCIA->PCI bridge) cards. * o Changed to using the new type-fascist min/max. * * v0.08 -> v0.08a - 9/10/2001 - David Gibson * o Inserted some missing acknowledgements/info into the Changelog. * o Fixed some bugs in the normalization of signal level reporting. * o Fixed bad bug in WEP key handling on Intersil and Symbol firmware, * which led to an instant crash on big-endian machines. * * v0.08a -> v0.08b - 20/11/2001 - David Gibson * o Lots of cleanup and bugfixes in orinoco_plx.c * o Cleanup to handling of Tx rate setting. * o Removed support for old encapsulation method. * o Removed old "dldwd" names. * o Split RID constants into a new file hermes_rid.h * o Renamed RID constants to match linux-wlan-ng and prism2.o * o Bugfixes in hermes.c * o Poke the PLX's INTCSR register, so it actually starts * generating interrupts. These cards might actually work now. * o Update to wireless extensions v12 (Jean II) * o Support for tallies and inquire command (Jean II) * o Airport updates for newer PPC kernels (BenH) * * v0.08b -> v0.09 - 21/12/2001 - David Gibson * o Some new PCI IDs for PLX cards. * o Removed broken attempt to do ALLMULTI reception. Just use * promiscuous mode instead * o Preliminary work for list-AP (Jean II) * o Airport updates from (BenH) * o Eliminated racy hw_ready stuff * o Fixed generation of fake events in irq handler. This should * finally kill the EIO problems (Jean II & dgibson) * o Fixed breakage of bitrate set/get on Agere firmware (Jean II) * * v0.09 -> v0.09a - 2/1/2002 - David Gibson * o Fixed stupid mistake in multicast list handling, triggering * a BUG() * * v0.09a -> v0.09b - 16/1/2002 - David Gibson * o Fixed even stupider mistake in new interrupt handling, which * seriously broke things on big-endian machines. * o Removed a bunch of redundant includes and exports. * o Removed a redundant MOD_{INC,DEC}_USE_COUNT pair in airport.c * o Don't attempt to do hardware level multicast reception on * Intersil firmware, just go promisc instead. * o Typo fixed in hermes_issue_cmd() * o Eliminated WIRELESS_SPY #ifdefs * o Status code reported on Tx exceptions * o Moved netif_wake_queue() from ALLOC interrupts to TX and TXEXC * interrupts, which should fix the timeouts we're seeing. * * v0.09b -> v0.10 - 25 Feb 2002 - David Gibson * o Removed nested structures used for header parsing, so the * driver should now work without hackery on ARM * o Fix for WEP handling on Intersil (Hawk Newton) * o Eliminated the /proc/hermes/ethXX/regs debugging file. It * was never very useful. * o Make Rx errors less noisy. * * v0.10 -> v0.11 - 5 Apr 2002 - David Gibson * o Laid the groundwork in hermes.[ch] for devices which map * into PCI memory space rather than IO space. * o Fixed bug in multicast handling (cleared multicast list when * leaving promiscuous mode). * o Relegated Tx error messages to debug. * o Cleaned up / corrected handling of allocation lengths. * o Set OWNSSID in IBSS mode for WinXP interoperability (jimc). * o Change to using alloc_etherdev() for structure allocations. * o Check for and drop undersized packets. * o Fixed a race in stopping/waking the queue. This should fix * the timeout problems (Pavel Roskin) * o Reverted to netif_wake_queue() on the ALLOC event. * o Fixes for recent Symbol firmwares which lack AP density * (Pavel Roskin). * * v0.11 -> v0.11a - 29 Apr 2002 - David Gibson * o Handle different register spacing, necessary for Prism 2.5 * PCI adaptors (Steve Hill). * o Cleaned up initialization of card structures in orinoco_cs * and airport. Removed card->priv field. * o Make response structure optional for hermes_docmd_wait() * Pavel Roskin) * o Added PCI id for Nortel emobility to orinoco_plx.c. * o Cleanup to handling of Symbol's allocation bug. (Pavel Roskin) * o Cleanups to firmware capability detection. * o Arrange for orinoco_pci.c to override firmware detection. * We should be able to support the PCI Intersil cards now. * o Cleanup handling of reset_cor and hard_reset (Pavel Roskin). * o Remove erroneous use of USER_BAP in the TxExc handler (Jouni * Malinen). * o Makefile changes for better integration into David Hinds * pcmcia-cs package. * * v0.11a -> v0.11b - 1 May 2002 - David Gibson * o Better error reporting in orinoco_plx_init_one() * o Fixed multiple bad kfree() bugs introduced by the * alloc_orinocodev() changes. * * v0.11b -> v0.12 - 19 Jun 2002 - David Gibson * o Support changing the MAC address. * o Correct display of Intersil firmware revision numbers. * o Entirely revised locking scheme. Should be both simpler and * better. * o Merged some common code in orinoco_plx, orinoco_pci and * airport by creating orinoco_default_{open,stop,reset}() * which are used as the dev->open, dev->stop, priv->reset * callbacks if none are specified when alloc_orinocodev() is * called. * o Removed orinoco_plx_interrupt() and orinoco_pci_interrupt(). * They didn't do anything. * * v0.12 -> v0.12a - 4 Jul 2002 - David Gibson * o Some rearrangement of code. * o Numerous fixups to locking and rest handling, particularly * for PCMCIA. * o This allows open and stop net_device methods to be in * orinoco.c now, rather than in the init modules. * o In orinoco_cs.c link->priv now points to the struct * net_device not to the struct orinoco_private. * o Added a check for undersized SNAP frames, which could cause * crashes. * * v0.12a -> v0.12b - 11 Jul 2002 - David Gibson * o Fix hw->num_init testing code, so num_init is actually * incremented. * o Fix very stupid bug in orinoco_cs which broke compile with * CONFIG_SMP. * o Squashed a warning. * * v0.12b -> v0.12c - 26 Jul 2002 - David Gibson * o Change to C9X style designated initializers. * o Add support for 3Com AirConnect PCI. * o No longer ignore the hard_reset argument to * alloc_orinocodev(). Oops. * * v0.12c -> v0.13beta1 - 13 Sep 2002 - David Gibson * o Revert the broken 0.12* locking scheme and go to a new yet * simpler scheme. * o Do firmware resets only in orinoco_init() and when waking * the card from hard sleep. * * v0.13beta1 -> v0.13 - 27 Sep 2002 - David Gibson * o Re-introduced full resets (via schedule_task()) on Tx * timeout. * * v0.13 -> v0.13a - 30 Sep 2002 - David Gibson * o Minor cleanups to info frame handling. Add basic support * for linkstatus info frames. * o Include required kernel headers in orinoco.h, to avoid * compile problems. * * v0.13a -> v0.13b - 10 Feb 2003 - David Gibson * o Implemented hard reset for Airport cards * o Experimental suspend/resume implementation for orinoco_pci * o Abolished /proc debugging support, replaced with a debugging * iwpriv. Now it's ugly and simple instead of ugly and complex. * o Bugfix in hermes.c if the firmware returned a record length * of 0, we could go clobbering memory. * o Bugfix in orinoco_stop() - it used to fail if hw_unavailable * was set, which was usually true on PCMCIA hot removes. * o Track LINKSTATUS messages, silently drop Tx packets before * we are connected (avoids confusing the firmware), and only * give LINKSTATUS printk()s if the status has changed. * * v0.13b -> v0.13c - 11 Mar 2003 - David Gibson * o Cleanup: use dev instead of priv in various places. * o Bug fix: Don't ReleaseConfiguration on RESET_PHYSICAL event * if we're in the middle of a (driver initiated) hard reset. * o Bug fix: ETH_ZLEN is supposed to include the header * (Dionysus Blazakis & Manish Karir) * o Convert to using workqueues instead of taskqueues (and * backwards compatibility macros for pre 2.5.41 kernels). * o Drop redundant (I think...) MOD_{INC,DEC}_USE_COUNT in * airport.c * o New orinoco_tmd.c init module from Joerg Dorchain for * TMD7160 based PCI to PCMCIA bridges (similar to * orinoco_plx.c). * * v0.13c -> v0.13d - 22 Apr 2003 - David Gibson * o Make hw_unavailable a counter, rather than just a flag, this * is necessary to avoid some races (such as a card being * removed in the middle of orinoco_reset(). * o Restore Release/RequestConfiguration in the PCMCIA event handler * when dealing with a driver initiated hard reset. This is * necessary to prevent hangs due to a spurious interrupt while * the reset is in progress. * o Clear the 802.11 header when transmitting, even though we * don't use it. This fixes a long standing bug on some * firmwares, which seem to get confused if that isn't done. * o Be less eager to de-encapsulate SNAP frames, only do so if * the OUI is 00:00:00 or 00:00:f8, leave others alone. The old * behaviour broke CDP (Cisco Discovery Protocol). * o Use dev instead of priv for free_irq() as well as * request_irq() (oops). * o Attempt to reset rather than giving up if we get too many * IRQs. * o Changed semantics of __orinoco_down() so it can be called * safely with hw_unavailable set. It also now clears the * linkstatus (since we're going to have to reassociate). * * v0.13d -> v0.13e - 12 May 2003 - David Gibson * o Support for post-2.5.68 return values from irq handler. * o Fixed bug where underlength packets would be double counted * in the rx_dropped statistics. * o Provided a module parameter to suppress linkstatus messages. * * v0.13e -> v0.14alpha1 - 30 Sep 2003 - David Gibson * o Replaced priv->connected logic with netif_carrier_on/off() * calls. * o Remove has_ibss_any and never set the CREATEIBSS RID when * the ESSID is empty. Too many firmwares break if we do. * o 2.6 merges: Replace pdev->slot_name with pci_name(), remove * __devinitdata from PCI ID tables, use free_netdev(). * o Enabled shared-key authentication for Agere firmware (from * Robert J. Moore * o Move netif_wake_queue() (back) to the Tx completion from the * ALLOC event. This seems to prevent/mitigate the rolling * error -110 problems at least on some Intersil firmwares. * Theoretically reduces performance, but I can't measure it. * Patch from Andrew Tridgell * * v0.14alpha1 -> v0.14alpha2 - 20 Oct 2003 - David Gibson * o Correctly turn off shared-key authentication when requested * (bugfix from Robert J. Moore). * o Correct airport sleep interfaces for current 2.6 kernels. * o Add code for key change without disabling/enabling the MAC * port. This is supposed to allow 802.1x to work sanely, but * doesn't seem to yet. * * TODO * o New wireless extensions API (patch from Moustafa * Youssef, updated by Jim Carter and Pavel Roskin). * o Handle de-encapsulation within network layer, provide 802.11 * headers (patch from Thomas 'Dent' Mirlacher) * o RF monitor mode support * o Fix possible races in SPY handling. * o Disconnect wireless extensions from fundamental configuration. * o (maybe) Software WEP support (patch from Stano Meduna). * o (maybe) Use multiple Tx buffers - driver handling queue * rather than firmware. */ /* Locking and synchronization: * * The basic principle is that everything is serialized through a * single spinlock, priv->lock. The lock is used in user, bh and irq * context, so when taken outside hardirq context it should always be * taken with interrupts disabled. The lock protects both the * hardware and the struct orinoco_private. * * Another flag, priv->hw_unavailable indicates that the hardware is * unavailable for an extended period of time (e.g. suspended, or in * the middle of a hard reset). This flag is protected by the * spinlock. All code which touches the hardware should check the * flag after taking the lock, and if it is set, give up on whatever * they are doing and drop the lock again. The orinoco_lock() * function handles this (it unlocks and returns -EBUSY if * hw_unavailable is non-zero). */ #define DRIVER_NAME "orinoco" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "hermes.h" #include "hermes_rid.h" #include "orinoco.h" #include "ieee802_11.h" /********************************************************************/ /* Module information */ /********************************************************************/ MODULE_AUTHOR("Pavel Roskin & David Gibson "); MODULE_DESCRIPTION("Driver for Lucent Orinoco, Prism II based and similar wireless cards"); MODULE_LICENSE("Dual MPL/GPL"); /* Level of debugging. Used in the macros in orinoco.h */ #ifdef ORINOCO_DEBUG int orinoco_debug = ORINOCO_DEBUG; module_param(orinoco_debug, int, 0644); MODULE_PARM_DESC(orinoco_debug, "Debug level"); EXPORT_SYMBOL(orinoco_debug); #endif static int suppress_linkstatus; /* = 0 */ module_param(suppress_linkstatus, bool, 0644); MODULE_PARM_DESC(suppress_linkstatus, "Don't log link status changes"); static int ignore_disconnect; /* = 0 */ module_param(ignore_disconnect, int, 0644); MODULE_PARM_DESC(ignore_disconnect, "Don't report lost link to the network layer"); /********************************************************************/ /* Compile time configuration and compatibility stuff */ /********************************************************************/ /* We do this this way to avoid ifdefs in the actual code */ #ifdef WIRELESS_SPY #define SPY_NUMBER(priv) (priv->spy_number) #else #define SPY_NUMBER(priv) 0 #endif /* WIRELESS_SPY */ /********************************************************************/ /* Internal constants */ /********************************************************************/ #define ORINOCO_MIN_MTU 256 #define ORINOCO_MAX_MTU (IEEE802_11_DATA_LEN - ENCAPS_OVERHEAD) #define SYMBOL_MAX_VER_LEN (14) #define USER_BAP 0 #define IRQ_BAP 1 #define MAX_IRQLOOPS_PER_IRQ 10 #define MAX_IRQLOOPS_PER_JIFFY (20000/HZ) /* Based on a guestimate of * how many events the * device could * legitimately generate */ #define SMALL_KEY_SIZE 5 #define LARGE_KEY_SIZE 13 #define TX_NICBUF_SIZE_BUG 1585 /* Bug in Symbol firmware */ #define DUMMY_FID 0xFFFF /*#define MAX_MULTICAST(priv) (priv->firmware_type == FIRMWARE_TYPE_AGERE ? \ HERMES_MAX_MULTICAST : 0)*/ #define MAX_MULTICAST(priv) (HERMES_MAX_MULTICAST) #define ORINOCO_INTEN (HERMES_EV_RX | HERMES_EV_ALLOC \ | HERMES_EV_TX | HERMES_EV_TXEXC \ | HERMES_EV_WTERR | HERMES_EV_INFO \ | HERMES_EV_INFDROP ) /********************************************************************/ /* Data tables */ /********************************************************************/ /* The frequency of each channel in MHz */ static const long channel_frequency[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442, 2447, 2452, 2457, 2462, 2467, 2472, 2484 }; #define NUM_CHANNELS ARRAY_SIZE(channel_frequency) /* This tables gives the actual meanings of the bitrate IDs returned * by the firmware. */ static struct { int bitrate; /* in 100s of kilobits */ int automatic; u16 agere_txratectrl; u16 intersil_txratectrl; } bitrate_table[] = { {110, 1, 3, 15}, /* Entry 0 is the default */ {10, 0, 1, 1}, {10, 1, 1, 1}, {20, 0, 2, 2}, {20, 1, 6, 3}, {55, 0, 4, 4}, {55, 1, 7, 7}, {110, 0, 5, 8}, }; #define BITRATE_TABLE_SIZE ARRAY_SIZE(bitrate_table) /********************************************************************/ /* Data types */ /********************************************************************/ struct header_struct { /* 802.3 */ u8 dest[ETH_ALEN]; u8 src[ETH_ALEN]; u16 len; /* 802.2 */ u8 dsap; u8 ssap; u8 ctrl; /* SNAP */ u8 oui[3]; u16 ethertype; } __attribute__ ((packed)); /* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */ u8 encaps_hdr[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00}; #define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2) struct hermes_rx_descriptor { u16 status; u32 time; u8 silence; u8 signal; u8 rate; u8 rxflow; u32 reserved; } __attribute__ ((packed)); /********************************************************************/ /* Function prototypes */ /********************************************************************/ static int orinoco_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); static int __orinoco_program_rids(struct net_device *dev); static void __orinoco_set_multicast_list(struct net_device *dev); /********************************************************************/ /* Internal helper functions */ /********************************************************************/ static inline void set_port_type(struct orinoco_private *priv) { switch (priv->iw_mode) { case IW_MODE_INFRA: priv->port_type = 1; priv->createibss = 0; break; case IW_MODE_ADHOC: if (priv->prefer_port3) { priv->port_type = 3; priv->createibss = 0; } else { priv->port_type = priv->ibss_port; priv->createibss = 1; } break; default: printk(KERN_ERR "%s: Invalid priv->iw_mode in set_port_type()\n", priv->ndev->name); } } /********************************************************************/ /* Device methods */ /********************************************************************/ static int orinoco_open(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); unsigned long flags; int err; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = __orinoco_up(dev); if (! err) priv->open = 1; orinoco_unlock(priv, &flags); return err; } static int orinoco_stop(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); int err = 0; /* We mustn't use orinoco_lock() here, because we need to be able to close the interface even if hw_unavailable is set (e.g. as we're released after a PC Card removal) */ spin_lock_irq(&priv->lock); priv->open = 0; err = __orinoco_down(dev); spin_unlock_irq(&priv->lock); return err; } static struct net_device_stats *orinoco_get_stats(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); return &priv->stats; } static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; struct iw_statistics *wstats = &priv->wstats; int err; unsigned long flags; if (! netif_device_present(dev)) { printk(KERN_WARNING "%s: get_wireless_stats() called while device not present\n", dev->name); return NULL; /* FIXME: Can we do better than this? */ } /* If busy, return the old stats. Returning NULL may cause * the interface to disappear from /proc/net/wireless */ if (orinoco_lock(priv, &flags) != 0) return wstats; /* We can't really wait for the tallies inquiry command to * complete, so we just use the previous results and trigger * a new tallies inquiry command for next time - Jean II */ /* FIXME: Really we should wait for the inquiry to come back - * as it is the stats we give don't make a whole lot of sense. * Unfortunately, it's not clear how to do that within the * wireless extensions framework: I think we're in user * context, but a lock seems to be held by the time we get in * here so we're not safe to sleep here. */ hermes_inquire(hw, HERMES_INQ_TALLIES); if (priv->iw_mode == IW_MODE_ADHOC) { memset(&wstats->qual, 0, sizeof(wstats->qual)); /* If a spy address is defined, we report stats of the * first spy address - Jean II */ if (SPY_NUMBER(priv)) { wstats->qual.qual = priv->spy_stat[0].qual; wstats->qual.level = priv->spy_stat[0].level; wstats->qual.noise = priv->spy_stat[0].noise; wstats->qual.updated = priv->spy_stat[0].updated; } } else { struct { u16 qual, signal, noise; } __attribute__ ((packed)) cq; err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_COMMSQUALITY, &cq); if (!err) { wstats->qual.qual = (int)le16_to_cpu(cq.qual); wstats->qual.level = (int)le16_to_cpu(cq.signal) - 0x95; wstats->qual.noise = (int)le16_to_cpu(cq.noise) - 0x95; wstats->qual.updated = 7; } } orinoco_unlock(priv, &flags); return wstats; } static void orinoco_set_multicast_list(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); unsigned long flags; if (orinoco_lock(priv, &flags) != 0) { printk(KERN_DEBUG "%s: orinoco_set_multicast_list() " "called when hw_unavailable\n", dev->name); return; } __orinoco_set_multicast_list(dev); orinoco_unlock(priv, &flags); } static int orinoco_change_mtu(struct net_device *dev, int new_mtu) { struct orinoco_private *priv = netdev_priv(dev); if ( (new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU) ) return -EINVAL; if ( (new_mtu + ENCAPS_OVERHEAD + IEEE802_11_HLEN) > (priv->nicbuf_size - ETH_HLEN) ) return -EINVAL; dev->mtu = new_mtu; return 0; } /********************************************************************/ /* Tx path */ /********************************************************************/ static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct net_device_stats *stats = &priv->stats; hermes_t *hw = &priv->hw; int err = 0; u16 txfid = priv->txfid; char *p; struct ethhdr *eh; int len, data_len, data_off; struct hermes_tx_descriptor desc; unsigned long flags; TRACE_ENTER(dev->name); if (! netif_running(dev)) { printk(KERN_ERR "%s: Tx on stopped device!\n", dev->name); TRACE_EXIT(dev->name); return 1; } if (netif_queue_stopped(dev)) { printk(KERN_DEBUG "%s: Tx while transmitter busy!\n", dev->name); TRACE_EXIT(dev->name); return 1; } if (orinoco_lock(priv, &flags) != 0) { printk(KERN_ERR "%s: orinoco_xmit() called while hw_unavailable\n", dev->name); TRACE_EXIT(dev->name); return 1; } if (! netif_carrier_ok(dev)) { /* Oops, the firmware hasn't established a connection, silently drop the packet (this seems to be the safest approach). */ stats->tx_errors++; orinoco_unlock(priv, &flags); dev_kfree_skb(skb); TRACE_EXIT(dev->name); return 0; } /* Length of the packet body */ /* FIXME: what if the skb is smaller than this? */ len = max_t(int,skb->len - ETH_HLEN, ETH_ZLEN - ETH_HLEN); eh = (struct ethhdr *)skb->data; memset(&desc, 0, sizeof(desc)); desc.tx_control = cpu_to_le16(HERMES_TXCTRL_TX_OK | HERMES_TXCTRL_TX_EX); err = hermes_bap_pwrite(hw, USER_BAP, &desc, sizeof(desc), txfid, 0); if (err) { if (net_ratelimit()) printk(KERN_ERR "%s: Error %d writing Tx descriptor " "to BAP\n", dev->name, err); stats->tx_errors++; goto fail; } /* Clear the 802.11 header and data length fields - some * firmwares (e.g. Lucent/Agere 8.xx) appear to get confused * if this isn't done. */ hermes_clear_words(hw, HERMES_DATA0, HERMES_802_3_OFFSET - HERMES_802_11_OFFSET); /* Encapsulate Ethernet-II frames */ if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */ struct header_struct hdr; data_len = len; data_off = HERMES_802_3_OFFSET + sizeof(hdr); p = skb->data + ETH_HLEN; /* 802.3 header */ memcpy(hdr.dest, eh->h_dest, ETH_ALEN); memcpy(hdr.src, eh->h_source, ETH_ALEN); hdr.len = htons(data_len + ENCAPS_OVERHEAD); /* 802.2 header */ memcpy(&hdr.dsap, &encaps_hdr, sizeof(encaps_hdr)); hdr.ethertype = eh->h_proto; err = hermes_bap_pwrite(hw, USER_BAP, &hdr, sizeof(hdr), txfid, HERMES_802_3_OFFSET); if (err) { if (net_ratelimit()) printk(KERN_ERR "%s: Error %d writing packet " "header to BAP\n", dev->name, err); stats->tx_errors++; goto fail; } } else { /* IEEE 802.3 frame */ data_len = len + ETH_HLEN; data_off = HERMES_802_3_OFFSET; p = skb->data; } /* Round up for odd length packets */ err = hermes_bap_pwrite(hw, USER_BAP, p, ALIGN(data_len, 2), txfid, data_off); if (err) { printk(KERN_ERR "%s: Error %d writing packet to BAP\n", dev->name, err); stats->tx_errors++; goto fail; } /* Finally, we actually initiate the send */ netif_stop_queue(dev); err = hermes_docmd_wait(hw, HERMES_CMD_TX | HERMES_CMD_RECL, txfid, NULL); if (err) { netif_start_queue(dev); printk(KERN_ERR "%s: Error %d transmitting packet\n", dev->name, err); stats->tx_errors++; goto fail; } dev->trans_start = jiffies; stats->tx_bytes += data_off + data_len; orinoco_unlock(priv, &flags); dev_kfree_skb(skb); TRACE_EXIT(dev->name); return 0; fail: TRACE_EXIT(dev->name); orinoco_unlock(priv, &flags); return err; } static void __orinoco_ev_alloc(struct net_device *dev, hermes_t *hw) { struct orinoco_private *priv = netdev_priv(dev); u16 fid = hermes_read_regn(hw, ALLOCFID); if (fid != priv->txfid) { if (fid != DUMMY_FID) printk(KERN_WARNING "%s: Allocate event on unexpected fid (%04X)\n", dev->name, fid); return; } hermes_write_regn(hw, ALLOCFID, DUMMY_FID); } static void __orinoco_ev_tx(struct net_device *dev, hermes_t *hw) { struct orinoco_private *priv = netdev_priv(dev); struct net_device_stats *stats = &priv->stats; stats->tx_packets++; netif_wake_queue(dev); hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID); } static void __orinoco_ev_txexc(struct net_device *dev, hermes_t *hw) { struct orinoco_private *priv = netdev_priv(dev); struct net_device_stats *stats = &priv->stats; u16 fid = hermes_read_regn(hw, TXCOMPLFID); struct hermes_tx_descriptor desc; int err = 0; if (fid == DUMMY_FID) return; /* Nothing's really happened */ err = hermes_bap_pread(hw, IRQ_BAP, &desc, sizeof(desc), fid, 0); if (err) { printk(KERN_WARNING "%s: Unable to read descriptor on Tx error " "(FID=%04X error %d)\n", dev->name, fid, err); } else { DEBUG(1, "%s: Tx error, status %d\n", dev->name, le16_to_cpu(desc.status)); } stats->tx_errors++; netif_wake_queue(dev); hermes_write_regn(hw, TXCOMPLFID, DUMMY_FID); } static void orinoco_tx_timeout(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct net_device_stats *stats = &priv->stats; struct hermes *hw = &priv->hw; printk(KERN_WARNING "%s: Tx timeout! " "ALLOCFID=%04x, TXCOMPLFID=%04x, EVSTAT=%04x\n", dev->name, hermes_read_regn(hw, ALLOCFID), hermes_read_regn(hw, TXCOMPLFID), hermes_read_regn(hw, EVSTAT)); stats->tx_errors++; schedule_work(&priv->reset_work); } /********************************************************************/ /* Rx path (data frames) */ /********************************************************************/ /* Does the frame have a SNAP header indicating it should be * de-encapsulated to Ethernet-II? */ static inline int is_ethersnap(void *_hdr) { u8 *hdr = _hdr; /* We de-encapsulate all packets which, a) have SNAP headers * (i.e. SSAP=DSAP=0xaa and CTRL=0x3 in the 802.2 LLC header * and where b) the OUI of the SNAP header is 00:00:00 or * 00:00:f8 - we need both because different APs appear to use * different OUIs for some reason */ return (memcmp(hdr, &encaps_hdr, 5) == 0) && ( (hdr[5] == 0x00) || (hdr[5] == 0xf8) ); } static inline void orinoco_spy_gather(struct net_device *dev, u_char *mac, int level, int noise) { struct orinoco_private *priv = netdev_priv(dev); int i; /* Gather wireless spy statistics: for each packet, compare the * source address with out list, and if match, get the stats... */ for (i = 0; i < priv->spy_number; i++) if (!memcmp(mac, priv->spy_address[i], ETH_ALEN)) { priv->spy_stat[i].level = level - 0x95; priv->spy_stat[i].noise = noise - 0x95; priv->spy_stat[i].qual = (level > noise) ? (level - noise) : 0; priv->spy_stat[i].updated = 7; } } static void orinoco_stat_gather(struct net_device *dev, struct sk_buff *skb, struct hermes_rx_descriptor *desc) { struct orinoco_private *priv = netdev_priv(dev); /* Using spy support with lots of Rx packets, like in an * infrastructure (AP), will really slow down everything, because * the MAC address must be compared to each entry of the spy list. * If the user really asks for it (set some address in the * spy list), we do it, but he will pay the price. * Note that to get here, you need both WIRELESS_SPY * compiled in AND some addresses in the list !!! */ /* Note : gcc will optimise the whole section away if * WIRELESS_SPY is not defined... - Jean II */ if (SPY_NUMBER(priv)) { orinoco_spy_gather(dev, skb->mac.raw + ETH_ALEN, desc->signal, desc->silence); } } static void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw) { struct orinoco_private *priv = netdev_priv(dev); struct net_device_stats *stats = &priv->stats; struct iw_statistics *wstats = &priv->wstats; struct sk_buff *skb = NULL; u16 rxfid, status; int length, data_len, data_off; char *p; struct hermes_rx_descriptor desc; struct header_struct hdr; struct ethhdr *eh; int err; rxfid = hermes_read_regn(hw, RXFID); err = hermes_bap_pread(hw, IRQ_BAP, &desc, sizeof(desc), rxfid, 0); if (err) { printk(KERN_ERR "%s: error %d reading Rx descriptor. " "Frame dropped.\n", dev->name, err); stats->rx_errors++; goto drop; } status = le16_to_cpu(desc.status); if (status & HERMES_RXSTAT_ERR) { if (status & HERMES_RXSTAT_UNDECRYPTABLE) { wstats->discard.code++; DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n", dev->name); } else { stats->rx_crc_errors++; DEBUG(1, "%s: Bad CRC on Rx. Frame dropped.\n", dev->name); } stats->rx_errors++; goto drop; } /* For now we ignore the 802.11 header completely, assuming that the card's firmware has handled anything vital */ err = hermes_bap_pread(hw, IRQ_BAP, &hdr, sizeof(hdr), rxfid, HERMES_802_3_OFFSET); if (err) { printk(KERN_ERR "%s: error %d reading frame header. " "Frame dropped.\n", dev->name, err); stats->rx_errors++; goto drop; } length = ntohs(hdr.len); /* Sanity checks */ if (length < 3) { /* No for even an 802.2 LLC header */ /* At least on Symbol firmware with PCF we get quite a lot of these legitimately - Poll frames with no data. */ stats->rx_dropped++; goto drop; } if (length > IEEE802_11_DATA_LEN) { printk(KERN_WARNING "%s: Oversized frame received (%d bytes)\n", dev->name, length); stats->rx_length_errors++; stats->rx_errors++; goto drop; } /* We need space for the packet data itself, plus an ethernet header, plus 2 bytes so we can align the IP header on a 32bit boundary, plus 1 byte so we can read in odd length packets from the card, which has an IO granularity of 16 bits */ skb = dev_alloc_skb(length+ETH_HLEN+2+1); if (!skb) { printk(KERN_WARNING "%s: Can't allocate skb for Rx\n", dev->name); goto drop; } skb_reserve(skb, 2); /* This way the IP header is aligned */ /* Handle decapsulation * In most cases, the firmware tell us about SNAP frames. * For some reason, the SNAP frames sent by LinkSys APs * are not properly recognised by most firmwares. * So, check ourselves */ if (((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_1042) || ((status & HERMES_RXSTAT_MSGTYPE) == HERMES_RXSTAT_TUNNEL) || is_ethersnap(&hdr)) { /* These indicate a SNAP within 802.2 LLC within 802.11 frame which we'll need to de-encapsulate to the original EthernetII frame. */ if (length < ENCAPS_OVERHEAD) { /* No room for full LLC+SNAP */ stats->rx_length_errors++; goto drop; } /* Remove SNAP header, reconstruct EthernetII frame */ data_len = length - ENCAPS_OVERHEAD; data_off = HERMES_802_3_OFFSET + sizeof(hdr); eh = (struct ethhdr *)skb_put(skb, ETH_HLEN); memcpy(eh, &hdr, 2 * ETH_ALEN); eh->h_proto = hdr.ethertype; } else { /* All other cases indicate a genuine 802.3 frame. No decapsulation needed. We just throw the whole thing in, and hope the protocol layer can deal with it as 802.3 */ data_len = length; data_off = HERMES_802_3_OFFSET; /* FIXME: we re-read from the card data we already read here */ } p = skb_put(skb, data_len); err = hermes_bap_pread(hw, IRQ_BAP, p, ALIGN(data_len, 2), rxfid, data_off); if (err) { printk(KERN_ERR "%s: error %d reading frame. " "Frame dropped.\n", dev->name, err); stats->rx_errors++; goto drop; } dev->last_rx = jiffies; skb->dev = dev; skb->protocol = eth_type_trans(skb, dev); skb->ip_summed = CHECKSUM_NONE; /* Process the wireless stats if needed */ orinoco_stat_gather(dev, skb, &desc); /* Pass the packet to the networking stack */ netif_rx(skb); stats->rx_packets++; stats->rx_bytes += length; return; drop: stats->rx_dropped++; if (skb) dev_kfree_skb_irq(skb); return; } /********************************************************************/ /* Rx path (info frames) */ /********************************************************************/ static void print_linkstatus(struct net_device *dev, u16 status) { char * s; if (suppress_linkstatus) return; switch (status) { case HERMES_LINKSTATUS_NOT_CONNECTED: s = "Not Connected"; break; case HERMES_LINKSTATUS_CONNECTED: s = "Connected"; break; case HERMES_LINKSTATUS_DISCONNECTED: s = "Disconnected"; break; case HERMES_LINKSTATUS_AP_CHANGE: s = "AP Changed"; break; case HERMES_LINKSTATUS_AP_OUT_OF_RANGE: s = "AP Out of Range"; break; case HERMES_LINKSTATUS_AP_IN_RANGE: s = "AP In Range"; break; case HERMES_LINKSTATUS_ASSOC_FAILED: s = "Association Failed"; break; default: s = "UNKNOWN"; } printk(KERN_INFO "%s: New link status: %s (%04x)\n", dev->name, s, status); } static void __orinoco_ev_info(struct net_device *dev, hermes_t *hw) { struct orinoco_private *priv = netdev_priv(dev); u16 infofid; struct { u16 len; u16 type; } __attribute__ ((packed)) info; int len, type; int err; /* This is an answer to an INQUIRE command that we did earlier, * or an information "event" generated by the card * The controller return to us a pseudo frame containing * the information in question - Jean II */ infofid = hermes_read_regn(hw, INFOFID); /* Read the info frame header - don't try too hard */ err = hermes_bap_pread(hw, IRQ_BAP, &info, sizeof(info), infofid, 0); if (err) { printk(KERN_ERR "%s: error %d reading info frame. " "Frame dropped.\n", dev->name, err); return; } len = HERMES_RECLEN_TO_BYTES(le16_to_cpu(info.len)); type = le16_to_cpu(info.type); switch (type) { case HERMES_INQ_TALLIES: { struct hermes_tallies_frame tallies; struct iw_statistics *wstats = &priv->wstats; if (len > sizeof(tallies)) { printk(KERN_WARNING "%s: Tallies frame too long (%d bytes)\n", dev->name, len); len = sizeof(tallies); } err = hermes_bap_pread(hw, IRQ_BAP, &tallies, len, infofid, sizeof(info)); if (err) break; /* Increment our various counters */ /* wstats->discard.nwid - no wrong BSSID stuff */ wstats->discard.code += le16_to_cpu(tallies.RxWEPUndecryptable); if (len == sizeof(tallies)) wstats->discard.code += le16_to_cpu(tallies.RxDiscards_WEPICVError) + le16_to_cpu(tallies.RxDiscards_WEPExcluded); wstats->discard.misc += le16_to_cpu(tallies.TxDiscardsWrongSA); wstats->discard.fragment += le16_to_cpu(tallies.RxMsgInBadMsgFragments); wstats->discard.retries += le16_to_cpu(tallies.TxRetryLimitExceeded); /* wstats->miss.beacon - no match */ } break; case HERMES_INQ_LINKSTATUS: { struct hermes_linkstatus linkstatus; u16 newstatus; int connected; if (len != sizeof(linkstatus)) { printk(KERN_WARNING "%s: Unexpected size for linkstatus frame (%d bytes)\n", dev->name, len); break; } err = hermes_bap_pread(hw, IRQ_BAP, &linkstatus, len, infofid, sizeof(info)); if (err) break; newstatus = le16_to_cpu(linkstatus.linkstatus); connected = (newstatus == HERMES_LINKSTATUS_CONNECTED) || (newstatus == HERMES_LINKSTATUS_AP_CHANGE) || (newstatus == HERMES_LINKSTATUS_AP_IN_RANGE); if (connected) netif_carrier_on(dev); else if (!ignore_disconnect) netif_carrier_off(dev); if (newstatus != priv->last_linkstatus) print_linkstatus(dev, newstatus); priv->last_linkstatus = newstatus; } break; default: printk(KERN_DEBUG "%s: Unknown information frame received: " "type 0x%04x, length %d\n", dev->name, type, len); /* We don't actually do anything about it */ break; } } static void __orinoco_ev_infdrop(struct net_device *dev, hermes_t *hw) { if (net_ratelimit()) printk(KERN_DEBUG "%s: Information frame lost.\n", dev->name); } /********************************************************************/ /* Internal hardware control routines */ /********************************************************************/ int __orinoco_up(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct hermes *hw = &priv->hw; int err; netif_carrier_off(dev); /* just to make sure */ err = __orinoco_program_rids(dev); if (err) { printk(KERN_ERR "%s: Error %d configuring card\n", dev->name, err); return err; } /* Fire things up again */ hermes_set_irqmask(hw, ORINOCO_INTEN); err = hermes_enable_port(hw, 0); if (err) { printk(KERN_ERR "%s: Error %d enabling MAC port\n", dev->name, err); return err; } netif_start_queue(dev); return 0; } int __orinoco_down(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct hermes *hw = &priv->hw; int err; netif_stop_queue(dev); if (! priv->hw_unavailable) { if (! priv->broken_disableport) { err = hermes_disable_port(hw, 0); if (err) { /* Some firmwares (e.g. Intersil 1.3.x) seem * to have problems disabling the port, oh * well, too bad. */ printk(KERN_WARNING "%s: Error %d disabling MAC port\n", dev->name, err); priv->broken_disableport = 1; } } hermes_set_irqmask(hw, 0); hermes_write_regn(hw, EVACK, 0xffff); } /* firmware will have to reassociate */ netif_carrier_off(dev); priv->last_linkstatus = 0xffff; return 0; } int orinoco_reinit_firmware(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct hermes *hw = &priv->hw; int err; err = hermes_init(hw); if (err) return err; err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid); if (err == -EIO && priv->nicbuf_size > TX_NICBUF_SIZE_BUG) { /* Try workaround for old Symbol firmware bug */ printk(KERN_WARNING "%s: firmware ALLOC bug detected " "(old Symbol firmware?). Trying to work around... ", dev->name); priv->nicbuf_size = TX_NICBUF_SIZE_BUG; err = hermes_allocate(hw, priv->nicbuf_size, &priv->txfid); if (err) printk("failed!\n"); else printk("ok.\n"); } return err; } static int __orinoco_hw_set_bitrate(struct orinoco_private *priv) { hermes_t *hw = &priv->hw; int err = 0; if (priv->bitratemode >= BITRATE_TABLE_SIZE) { printk(KERN_ERR "%s: BUG: Invalid bitrate mode %d\n", priv->ndev->name, priv->bitratemode); return -EINVAL; } switch (priv->firmware_type) { case FIRMWARE_TYPE_AGERE: err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFTXRATECONTROL, bitrate_table[priv->bitratemode].agere_txratectrl); break; case FIRMWARE_TYPE_INTERSIL: case FIRMWARE_TYPE_SYMBOL: err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFTXRATECONTROL, bitrate_table[priv->bitratemode].intersil_txratectrl); break; default: BUG(); } return err; } /* Change the WEP keys and/or the current keys. Can be called * either from __orinoco_hw_setup_wep() or directly from * orinoco_ioctl_setiwencode(). In the later case the association * with the AP is not broken (if the firmware can handle it), * which is needed for 802.1x implementations. */ static int __orinoco_hw_setup_wepkeys(struct orinoco_private *priv) { hermes_t *hw = &priv->hw; int err = 0; switch (priv->firmware_type) { case FIRMWARE_TYPE_AGERE: err = HERMES_WRITE_RECORD(hw, USER_BAP, HERMES_RID_CNFWEPKEYS_AGERE, &priv->keys); if (err) return err; err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFTXKEY_AGERE, priv->tx_key); if (err) return err; break; case FIRMWARE_TYPE_INTERSIL: case FIRMWARE_TYPE_SYMBOL: { int keylen; int i; /* Force uniform key length to work around firmware bugs */ keylen = le16_to_cpu(priv->keys[priv->tx_key].len); if (keylen > LARGE_KEY_SIZE) { printk(KERN_ERR "%s: BUG: Key %d has oversize length %d.\n", priv->ndev->name, priv->tx_key, keylen); return -E2BIG; } /* Write all 4 keys */ for(i = 0; i < ORINOCO_MAX_KEYS; i++) { err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDEFAULTKEY0 + i, HERMES_BYTES_TO_RECLEN(keylen), priv->keys[i].data); if (err) return err; } /* Write the index of the key used in transmission */ err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFWEPDEFAULTKEYID, priv->tx_key); if (err) return err; } break; } return 0; } static int __orinoco_hw_setup_wep(struct orinoco_private *priv) { hermes_t *hw = &priv->hw; int err = 0; int master_wep_flag; int auth_flag; if (priv->wep_on) __orinoco_hw_setup_wepkeys(priv); if (priv->wep_restrict) auth_flag = HERMES_AUTH_SHARED_KEY; else auth_flag = HERMES_AUTH_OPEN; switch (priv->firmware_type) { case FIRMWARE_TYPE_AGERE: /* Agere style WEP */ if (priv->wep_on) { /* Enable the shared-key authentication. */ err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFAUTHENTICATION_AGERE, auth_flag); } err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFWEPENABLED_AGERE, priv->wep_on); if (err) return err; break; case FIRMWARE_TYPE_INTERSIL: /* Intersil style WEP */ case FIRMWARE_TYPE_SYMBOL: /* Symbol style WEP */ if (priv->wep_on) { if (priv->wep_restrict || (priv->firmware_type == FIRMWARE_TYPE_SYMBOL)) master_wep_flag = HERMES_WEP_PRIVACY_INVOKED | HERMES_WEP_EXCL_UNENCRYPTED; else master_wep_flag = HERMES_WEP_PRIVACY_INVOKED; err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFAUTHENTICATION, auth_flag); if (err) return err; } else master_wep_flag = 0; if (priv->iw_mode == IW_MODE_MONITOR) master_wep_flag |= HERMES_WEP_HOST_DECRYPT; /* Master WEP setting : on/off */ err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFWEPFLAGS_INTERSIL, master_wep_flag); if (err) return err; break; } return 0; } static int __orinoco_program_rids(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err; struct hermes_idstring idbuf; /* Set the MAC address */ err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR, HERMES_BYTES_TO_RECLEN(ETH_ALEN), dev->dev_addr); if (err) { printk(KERN_ERR "%s: Error %d setting MAC address\n", dev->name, err); return err; } /* Set up the link mode */ err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPORTTYPE, priv->port_type); if (err) { printk(KERN_ERR "%s: Error %d setting port type\n", dev->name, err); return err; } /* Set the channel/frequency */ if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) { err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFOWNCHANNEL, priv->channel); if (err) { printk(KERN_ERR "%s: Error %d setting channel %d\n", dev->name, err, priv->channel); return err; } } if (priv->has_ibss) { u16 createibss; if ((strlen(priv->desired_essid) == 0) && (priv->createibss)) { printk(KERN_WARNING "%s: This firmware requires an " "ESSID in IBSS-Ad-Hoc mode.\n", dev->name); /* With wvlan_cs, in this case, we would crash. * hopefully, this driver will behave better... * Jean II */ createibss = 0; } else { createibss = priv->createibss; } err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFCREATEIBSS, createibss); if (err) { printk(KERN_ERR "%s: Error %d setting CREATEIBSS\n", dev->name, err); return err; } } /* Set the desired ESSID */ idbuf.len = cpu_to_le16(strlen(priv->desired_essid)); memcpy(&idbuf.val, priv->desired_essid, sizeof(idbuf.val)); /* WinXP wants partner to configure OWNSSID even in IBSS mode. (jimc) */ err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNSSID, HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2), &idbuf); if (err) { printk(KERN_ERR "%s: Error %d setting OWNSSID\n", dev->name, err); return err; } err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFDESIREDSSID, HERMES_BYTES_TO_RECLEN(strlen(priv->desired_essid)+2), &idbuf); if (err) { printk(KERN_ERR "%s: Error %d setting DESIREDSSID\n", dev->name, err); return err; } /* Set the station name */ idbuf.len = cpu_to_le16(strlen(priv->nick)); memcpy(&idbuf.val, priv->nick, sizeof(idbuf.val)); err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME, HERMES_BYTES_TO_RECLEN(strlen(priv->nick)+2), &idbuf); if (err) { printk(KERN_ERR "%s: Error %d setting nickname\n", dev->name, err); return err; } /* Set AP density */ if (priv->has_sensitivity) { err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE, priv->ap_density); if (err) { printk(KERN_WARNING "%s: Error %d setting SYSTEMSCALE. " "Disabling sensitivity control\n", dev->name, err); priv->has_sensitivity = 0; } } /* Set RTS threshold */ err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD, priv->rts_thresh); if (err) { printk(KERN_ERR "%s: Error %d setting RTS threshold\n", dev->name, err); return err; } /* Set fragmentation threshold or MWO robustness */ if (priv->has_mwo) err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFMWOROBUST_AGERE, priv->mwo_robust); else err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD, priv->frag_thresh); if (err) { printk(KERN_ERR "%s: Error %d setting fragmentation\n", dev->name, err); return err; } /* Set bitrate */ err = __orinoco_hw_set_bitrate(priv); if (err) { printk(KERN_ERR "%s: Error %d setting bitrate\n", dev->name, err); return err; } /* Set power management */ if (priv->has_pm) { err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, priv->pm_on); if (err) { printk(KERN_ERR "%s: Error %d setting up PM\n", dev->name, err); return err; } err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, priv->pm_mcast); if (err) { printk(KERN_ERR "%s: Error %d setting up PM\n", dev->name, err); return err; } err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFMAXSLEEPDURATION, priv->pm_period); if (err) { printk(KERN_ERR "%s: Error %d setting up PM\n", dev->name, err); return err; } err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, priv->pm_timeout); if (err) { printk(KERN_ERR "%s: Error %d setting up PM\n", dev->name, err); return err; } } /* Set preamble - only for Symbol so far... */ if (priv->has_preamble) { err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPREAMBLE_SYMBOL, priv->preamble); if (err) { printk(KERN_ERR "%s: Error %d setting preamble\n", dev->name, err); return err; } } /* Set up encryption */ if (priv->has_wep) { err = __orinoco_hw_setup_wep(priv); if (err) { printk(KERN_ERR "%s: Error %d activating WEP\n", dev->name, err); return err; } } /* Set promiscuity / multicast*/ priv->promiscuous = 0; priv->mc_count = 0; __orinoco_set_multicast_list(dev); /* FIXME: what about the xmit_lock */ return 0; } /* FIXME: return int? */ static void __orinoco_set_multicast_list(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err = 0; int promisc, mc_count; /* The Hermes doesn't seem to have an allmulti mode, so we go * into promiscuous mode and let the upper levels deal. */ if ( (dev->flags & IFF_PROMISC) || (dev->flags & IFF_ALLMULTI) || (dev->mc_count > MAX_MULTICAST(priv)) ) { promisc = 1; mc_count = 0; } else { promisc = 0; mc_count = dev->mc_count; } if (promisc != priv->promiscuous) { err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFPROMISCUOUSMODE, promisc); if (err) { printk(KERN_ERR "%s: Error %d setting PROMISCUOUSMODE to 1.\n", dev->name, err); } else priv->promiscuous = promisc; } if (! promisc && (mc_count || priv->mc_count) ) { struct dev_mc_list *p = dev->mc_list; struct hermes_multicast mclist; int i; for (i = 0; i < mc_count; i++) { /* paranoia: is list shorter than mc_count? */ BUG_ON(! p); /* paranoia: bad address size in list? */ BUG_ON(p->dmi_addrlen != ETH_ALEN); memcpy(mclist.addr[i], p->dmi_addr, ETH_ALEN); p = p->next; } if (p) printk(KERN_WARNING "%s: Multicast list is " "longer than mc_count\n", dev->name); err = hermes_write_ltv(hw, USER_BAP, HERMES_RID_CNFGROUPADDRESSES, HERMES_BYTES_TO_RECLEN(priv->mc_count * ETH_ALEN), &mclist); if (err) printk(KERN_ERR "%s: Error %d setting multicast list.\n", dev->name, err); else priv->mc_count = mc_count; } /* Since we can set the promiscuous flag when it wasn't asked for, make sure the net_device knows about it. */ if (priv->promiscuous) dev->flags |= IFF_PROMISC; else dev->flags &= ~IFF_PROMISC; } static int orinoco_reconfigure(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct hermes *hw = &priv->hw; unsigned long flags; int err = 0; if (priv->broken_disableport) { schedule_work(&priv->reset_work); return 0; } if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = hermes_disable_port(hw, 0); if (err) { printk(KERN_WARNING "%s: Unable to disable port while reconfiguring card\n", dev->name); priv->broken_disableport = 1; goto out; } err = __orinoco_program_rids(dev); if (err) { printk(KERN_WARNING "%s: Unable to reconfigure card\n", dev->name); goto out; } err = hermes_enable_port(hw, 0); if (err) { printk(KERN_WARNING "%s: Unable to enable port while reconfiguring card\n", dev->name); goto out; } out: if (err) { printk(KERN_WARNING "%s: Resetting instead...\n", dev->name); schedule_work(&priv->reset_work); err = 0; } orinoco_unlock(priv, &flags); return err; } /* This must be called from user context, without locks held - use * schedule_work() */ static void orinoco_reset(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); struct hermes *hw = &priv->hw; int err; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) /* When the hardware becomes available again, whatever * detects that is responsible for re-initializing * it. So no need for anything further */ return; netif_stop_queue(dev); /* Shut off interrupts. Depending on what state the hardware * is in, this might not work, but we'll try anyway */ hermes_set_irqmask(hw, 0); hermes_write_regn(hw, EVACK, 0xffff); priv->hw_unavailable++; priv->last_linkstatus = 0xffff; /* firmware will have to reassociate */ netif_carrier_off(dev); orinoco_unlock(priv, &flags); if (priv->hard_reset) { err = (*priv->hard_reset)(priv); if (err) { printk(KERN_ERR "%s: orinoco_reset: Error %d " "performing hard reset\n", dev->name, err); goto disable; } } err = orinoco_reinit_firmware(dev); if (err) { printk(KERN_ERR "%s: orinoco_reset: Error %d re-initializing firmware\n", dev->name, err); goto disable; } spin_lock_irq(&priv->lock); /* This has to be called from user context */ priv->hw_unavailable--; /* priv->open or priv->hw_unavailable might have changed while * we dropped the lock */ if (priv->open && (! priv->hw_unavailable)) { err = __orinoco_up(dev); if (err) { printk(KERN_ERR "%s: orinoco_reset: Error %d reenabling card\n", dev->name, err); } else dev->trans_start = jiffies; } spin_unlock_irq(&priv->lock); return; disable: hermes_set_irqmask(hw, 0); netif_device_detach(dev); printk(KERN_ERR "%s: Device has been disabled!\n", dev->name); } /********************************************************************/ /* Interrupt handler */ /********************************************************************/ static void __orinoco_ev_tick(struct net_device *dev, hermes_t *hw) { printk(KERN_DEBUG "%s: TICK\n", dev->name); } static void __orinoco_ev_wterr(struct net_device *dev, hermes_t *hw) { /* This seems to happen a fair bit under load, but ignoring it seems to work fine...*/ printk(KERN_DEBUG "%s: MAC controller error (WTERR). Ignoring.\n", dev->name); } irqreturn_t orinoco_interrupt(int irq, void *dev_id, struct pt_regs *regs) { struct net_device *dev = (struct net_device *)dev_id; struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int count = MAX_IRQLOOPS_PER_IRQ; u16 evstat, events; /* These are used to detect a runaway interrupt situation */ /* If we get more than MAX_IRQLOOPS_PER_JIFFY iterations in a jiffy, * we panic and shut down the hardware */ static int last_irq_jiffy = 0; /* jiffies value the last time * we were called */ static int loops_this_jiffy = 0; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) { /* If hw is unavailable - we don't know if the irq was * for us or not */ return IRQ_HANDLED; } evstat = hermes_read_regn(hw, EVSTAT); events = evstat & hw->inten; if (! events) { orinoco_unlock(priv, &flags); return IRQ_NONE; } if (jiffies != last_irq_jiffy) loops_this_jiffy = 0; last_irq_jiffy = jiffies; while (events && count--) { if (++loops_this_jiffy > MAX_IRQLOOPS_PER_JIFFY) { printk(KERN_WARNING "%s: IRQ handler is looping too " "much! Resetting.\n", dev->name); /* Disable interrupts for now */ hermes_set_irqmask(hw, 0); schedule_work(&priv->reset_work); break; } /* Check the card hasn't been removed */ if (! hermes_present(hw)) { DEBUG(0, "orinoco_interrupt(): card removed\n"); break; } if (events & HERMES_EV_TICK) __orinoco_ev_tick(dev, hw); if (events & HERMES_EV_WTERR) __orinoco_ev_wterr(dev, hw); if (events & HERMES_EV_INFDROP) __orinoco_ev_infdrop(dev, hw); if (events & HERMES_EV_INFO) __orinoco_ev_info(dev, hw); if (events & HERMES_EV_RX) __orinoco_ev_rx(dev, hw); if (events & HERMES_EV_TXEXC) __orinoco_ev_txexc(dev, hw); if (events & HERMES_EV_TX) __orinoco_ev_tx(dev, hw); if (events & HERMES_EV_ALLOC) __orinoco_ev_alloc(dev, hw); hermes_write_regn(hw, EVACK, evstat); evstat = hermes_read_regn(hw, EVSTAT); events = evstat & hw->inten; }; orinoco_unlock(priv, &flags); return IRQ_HANDLED; } /********************************************************************/ /* Initialization */ /********************************************************************/ struct comp_id { u16 id, variant, major, minor; } __attribute__ ((packed)); static inline fwtype_t determine_firmware_type(struct comp_id *nic_id) { if (nic_id->id < 0x8000) return FIRMWARE_TYPE_AGERE; else if (nic_id->id == 0x8000 && nic_id->major == 0) return FIRMWARE_TYPE_SYMBOL; else return FIRMWARE_TYPE_INTERSIL; } /* Set priv->firmware type, determine firmware properties */ static int determine_firmware(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err; struct comp_id nic_id, sta_id; unsigned int firmver; char tmp[SYMBOL_MAX_VER_LEN+1]; /* Get the hardware version */ err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_NICID, &nic_id); if (err) { printk(KERN_ERR "%s: Cannot read hardware identity: error %d\n", dev->name, err); return err; } le16_to_cpus(&nic_id.id); le16_to_cpus(&nic_id.variant); le16_to_cpus(&nic_id.major); le16_to_cpus(&nic_id.minor); printk(KERN_DEBUG "%s: Hardware identity %04x:%04x:%04x:%04x\n", dev->name, nic_id.id, nic_id.variant, nic_id.major, nic_id.minor); priv->firmware_type = determine_firmware_type(&nic_id); /* Get the firmware version */ err = HERMES_READ_RECORD(hw, USER_BAP, HERMES_RID_STAID, &sta_id); if (err) { printk(KERN_ERR "%s: Cannot read station identity: error %d\n", dev->name, err); return err; } le16_to_cpus(&sta_id.id); le16_to_cpus(&sta_id.variant); le16_to_cpus(&sta_id.major); le16_to_cpus(&sta_id.minor); printk(KERN_DEBUG "%s: Station identity %04x:%04x:%04x:%04x\n", dev->name, sta_id.id, sta_id.variant, sta_id.major, sta_id.minor); switch (sta_id.id) { case 0x15: printk(KERN_ERR "%s: Primary firmware is active\n", dev->name); return -ENODEV; case 0x14b: printk(KERN_ERR "%s: Tertiary firmware is active\n", dev->name); return -ENODEV; case 0x1f: /* Intersil, Agere, Symbol Spectrum24 */ case 0x21: /* Symbol Spectrum24 Trilogy */ break; default: printk(KERN_NOTICE "%s: Unknown station ID, please report\n", dev->name); break; } /* Default capabilities */ priv->has_sensitivity = 1; priv->has_mwo = 0; priv->has_preamble = 0; priv->has_port3 = 1; priv->has_ibss = 1; priv->has_wep = 0; priv->has_big_wep = 0; /* Determine capabilities from the firmware version */ switch (priv->firmware_type) { case FIRMWARE_TYPE_AGERE: /* Lucent Wavelan IEEE, Lucent Orinoco, Cabletron RoamAbout, ELSA, Melco, HP, IBM, Dell 1150, Compaq 110/210 */ snprintf(priv->fw_name, sizeof(priv->fw_name) - 1, "Lucent/Agere %d.%02d", sta_id.major, sta_id.minor); firmver = ((unsigned long)sta_id.major << 16) | sta_id.minor; priv->has_ibss = (firmver >= 0x60006); priv->has_wep = (firmver >= 0x40020); priv->has_big_wep = 1; /* FIXME: this is wrong - how do we tell Gold cards from the others? */ priv->has_mwo = (firmver >= 0x60000); priv->has_pm = (firmver >= 0x40020); /* Don't work in 7.52 ? */ priv->ibss_port = 1; /* Tested with Agere firmware : * 1.16 ; 4.08 ; 4.52 ; 6.04 ; 6.16 ; 7.28 => Jean II * Tested CableTron firmware : 4.32 => Anton */ break; case FIRMWARE_TYPE_SYMBOL: /* Symbol , 3Com AirConnect, Intel, Ericsson WLAN */ /* Intel MAC : 00:02:B3:* */ /* 3Com MAC : 00:50:DA:* */ memset(tmp, 0, sizeof(tmp)); /* Get the Symbol firmware version */ err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SECONDARYVERSION_SYMBOL, SYMBOL_MAX_VER_LEN, NULL, &tmp); if (err) { printk(KERN_WARNING "%s: Error %d reading Symbol firmware info. Wildly guessing capabilities...\n", dev->name, err); firmver = 0; tmp[0] = '\0'; } else { /* The firmware revision is a string, the format is * something like : "V2.20-01". * Quick and dirty parsing... - Jean II */ firmver = ((tmp[1] - '0') << 16) | ((tmp[3] - '0') << 12) | ((tmp[4] - '0') << 8) | ((tmp[6] - '0') << 4) | (tmp[7] - '0'); tmp[SYMBOL_MAX_VER_LEN] = '\0'; } snprintf(priv->fw_name, sizeof(priv->fw_name) - 1, "Symbol %s", tmp); priv->has_ibss = (firmver >= 0x20000); priv->has_wep = (firmver >= 0x15012); priv->has_big_wep = (firmver >= 0x20000); priv->has_pm = (firmver >= 0x20000 && firmver < 0x22000) || (firmver >= 0x29000 && firmver < 0x30000) || firmver >= 0x31000; priv->has_preamble = (firmver >= 0x20000); priv->ibss_port = 4; priv->broken_disableport = (firmver == 0x25013) || (firmver >= 0x30000 && firmver <= 0x31000); /* Tested with Intel firmware : 0x20015 => Jean II */ /* Tested with 3Com firmware : 0x15012 & 0x22001 => Jean II */ break; case FIRMWARE_TYPE_INTERSIL: /* D-Link, Linksys, Adtron, ZoomAir, and many others... * Samsung, Compaq 100/200 and Proxim are slightly * different and less well tested */ /* D-Link MAC : 00:40:05:* */ /* Addtron MAC : 00:90:D1:* */ snprintf(priv->fw_name, sizeof(priv->fw_name) - 1, "Intersil %d.%d.%d", sta_id.major, sta_id.minor, sta_id.variant); firmver = ((unsigned long)sta_id.major << 16) | ((unsigned long)sta_id.minor << 8) | sta_id.variant; priv->has_ibss = (firmver >= 0x000700); /* FIXME */ priv->has_big_wep = priv->has_wep = (firmver >= 0x000800); priv->has_pm = (firmver >= 0x000700); if (firmver >= 0x000800) priv->ibss_port = 0; else { printk(KERN_NOTICE "%s: Intersil firmware earlier " "than v0.8.x - several features not supported\n", dev->name); priv->ibss_port = 1; } break; } printk(KERN_DEBUG "%s: Firmware determined as %s\n", dev->name, priv->fw_name); return 0; } static int orinoco_init(struct net_device *dev) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err = 0; struct hermes_idstring nickbuf; u16 reclen; int len; TRACE_ENTER(dev->name); /* No need to lock, the hw_unavailable flag is already set in * alloc_orinocodev() */ priv->nicbuf_size = IEEE802_11_FRAME_LEN + ETH_HLEN; /* Initialize the firmware */ err = orinoco_reinit_firmware(dev); if (err != 0) { printk(KERN_ERR "%s: failed to initialize firmware (err = %d)\n", dev->name, err); goto out; } err = determine_firmware(dev); if (err != 0) { printk(KERN_ERR "%s: Incompatible firmware, aborting\n", dev->name); goto out; } if (priv->has_port3) printk(KERN_DEBUG "%s: Ad-hoc demo mode supported\n", dev->name); if (priv->has_ibss) printk(KERN_DEBUG "%s: IEEE standard IBSS ad-hoc mode supported\n", dev->name); if (priv->has_wep) { printk(KERN_DEBUG "%s: WEP supported, ", dev->name); if (priv->has_big_wep) printk("104-bit key\n"); else printk("40-bit key\n"); } /* Get the MAC address */ err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNMACADDR, ETH_ALEN, NULL, dev->dev_addr); if (err) { printk(KERN_WARNING "%s: failed to read MAC address!\n", dev->name); goto out; } printk(KERN_DEBUG "%s: MAC address %02X:%02X:%02X:%02X:%02X:%02X\n", dev->name, dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]); /* Get the station name */ err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CNFOWNNAME, sizeof(nickbuf), &reclen, &nickbuf); if (err) { printk(KERN_ERR "%s: failed to read station name\n", dev->name); goto out; } if (nickbuf.len) len = min(IW_ESSID_MAX_SIZE, (int)le16_to_cpu(nickbuf.len)); else len = min(IW_ESSID_MAX_SIZE, 2 * reclen); memcpy(priv->nick, &nickbuf.val, len); priv->nick[len] = '\0'; printk(KERN_DEBUG "%s: Station name \"%s\"\n", dev->name, priv->nick); /* Get allowed channels */ err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CHANNELLIST, &priv->channel_mask); if (err) { printk(KERN_ERR "%s: failed to read channel list!\n", dev->name); goto out; } /* Get initial AP density */ err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE, &priv->ap_density); if (err || priv->ap_density < 1 || priv->ap_density > 3) { priv->has_sensitivity = 0; } /* Get initial RTS threshold */ err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFRTSTHRESHOLD, &priv->rts_thresh); if (err) { printk(KERN_ERR "%s: failed to read RTS threshold!\n", dev->name); goto out; } /* Get initial fragmentation settings */ if (priv->has_mwo) err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMWOROBUST_AGERE, &priv->mwo_robust); else err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD, &priv->frag_thresh); if (err) { printk(KERN_ERR "%s: failed to read fragmentation settings!\n", dev->name); goto out; } /* Power management setup */ if (priv->has_pm) { priv->pm_on = 0; priv->pm_mcast = 1; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMAXSLEEPDURATION, &priv->pm_period); if (err) { printk(KERN_ERR "%s: failed to read power management period!\n", dev->name); goto out; } err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &priv->pm_timeout); if (err) { printk(KERN_ERR "%s: failed to read power management timeout!\n", dev->name); goto out; } } /* Preamble setup */ if (priv->has_preamble) { err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPREAMBLE_SYMBOL, &priv->preamble); if (err) goto out; } /* Set up the default configuration */ priv->iw_mode = IW_MODE_INFRA; /* By default use IEEE/IBSS ad-hoc mode if we have it */ priv->prefer_port3 = priv->has_port3 && (! priv->has_ibss); set_port_type(priv); priv->channel = 0; /* use firmware default */ priv->promiscuous = 0; priv->wep_on = 0; priv->tx_key = 0; /* Make the hardware available, as long as it hasn't been * removed elsewhere (e.g. by PCMCIA hot unplug) */ spin_lock_irq(&priv->lock); priv->hw_unavailable--; spin_unlock_irq(&priv->lock); printk(KERN_DEBUG "%s: ready\n", dev->name); out: TRACE_EXIT(dev->name); return err; } struct net_device *alloc_orinocodev(int sizeof_card, int (*hard_reset)(struct orinoco_private *)) { struct net_device *dev; struct orinoco_private *priv; dev = alloc_etherdev(sizeof(struct orinoco_private) + sizeof_card); if (! dev) return NULL; priv = netdev_priv(dev); priv->ndev = dev; if (sizeof_card) priv->card = (void *)((unsigned long)priv + sizeof(struct orinoco_private)); else priv->card = NULL; /* Setup / override net_device fields */ dev->init = orinoco_init; dev->hard_start_xmit = orinoco_xmit; dev->tx_timeout = orinoco_tx_timeout; dev->watchdog_timeo = HZ; /* 1 second timeout */ dev->get_stats = orinoco_get_stats; dev->get_wireless_stats = orinoco_get_wireless_stats; dev->do_ioctl = orinoco_ioctl; dev->change_mtu = orinoco_change_mtu; dev->set_multicast_list = orinoco_set_multicast_list; /* we use the default eth_mac_addr for setting the MAC addr */ /* Set up default callbacks */ dev->open = orinoco_open; dev->stop = orinoco_stop; priv->hard_reset = hard_reset; spin_lock_init(&priv->lock); priv->open = 0; priv->hw_unavailable = 1; /* orinoco_init() must clear this * before anything else touches the * hardware */ INIT_WORK(&priv->reset_work, (void (*)(void *))orinoco_reset, dev); netif_carrier_off(dev); priv->last_linkstatus = 0xffff; return dev; } void free_orinocodev(struct net_device *dev) { free_netdev(dev); } /********************************************************************/ /* Wireless extensions */ /********************************************************************/ static int orinoco_hw_get_bssid(struct orinoco_private *priv, char buf[ETH_ALEN]) { hermes_t *hw = &priv->hw; int err = 0; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTBSSID, ETH_ALEN, NULL, buf); orinoco_unlock(priv, &flags); return err; } static int orinoco_hw_get_essid(struct orinoco_private *priv, int *active, char buf[IW_ESSID_MAX_SIZE+1]) { hermes_t *hw = &priv->hw; int err = 0; struct hermes_idstring essidbuf; char *p = (char *)(&essidbuf.val); int len; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if (strlen(priv->desired_essid) > 0) { /* We read the desired SSID from the hardware rather than from priv->desired_essid, just in case the firmware is allowed to change it on us. I'm not sure about this */ /* My guess is that the OWNSSID should always be whatever * we set to the card, whereas CURRENT_SSID is the one that * may change... - Jean II */ u16 rid; *active = 1; rid = (priv->port_type == 3) ? HERMES_RID_CNFOWNSSID : HERMES_RID_CNFDESIREDSSID; err = hermes_read_ltv(hw, USER_BAP, rid, sizeof(essidbuf), NULL, &essidbuf); if (err) goto fail_unlock; } else { *active = 0; err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_CURRENTSSID, sizeof(essidbuf), NULL, &essidbuf); if (err) goto fail_unlock; } len = le16_to_cpu(essidbuf.len); BUG_ON(len > IW_ESSID_MAX_SIZE); memset(buf, 0, IW_ESSID_MAX_SIZE+1); memcpy(buf, p, len); buf[len] = '\0'; fail_unlock: orinoco_unlock(priv, &flags); return err; } static long orinoco_hw_get_freq(struct orinoco_private *priv) { hermes_t *hw = &priv->hw; int err = 0; u16 channel; long freq = 0; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTCHANNEL, &channel); if (err) goto out; /* Intersil firmware 1.3.5 returns 0 when the interface is down */ if (channel == 0) { err = -EBUSY; goto out; } if ( (channel < 1) || (channel > NUM_CHANNELS) ) { printk(KERN_WARNING "%s: Channel out of range (%d)!\n", priv->ndev->name, channel); err = -EBUSY; goto out; } freq = channel_frequency[channel-1] * 100000; out: orinoco_unlock(priv, &flags); if (err > 0) err = -EBUSY; return err ? err : freq; } static int orinoco_hw_get_bitratelist(struct orinoco_private *priv, int *numrates, s32 *rates, int max) { hermes_t *hw = &priv->hw; struct hermes_idstring list; unsigned char *p = (unsigned char *)&list.val; int err = 0; int num; int i; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = hermes_read_ltv(hw, USER_BAP, HERMES_RID_SUPPORTEDDATARATES, sizeof(list), NULL, &list); orinoco_unlock(priv, &flags); if (err) return err; num = le16_to_cpu(list.len); *numrates = num; num = min(num, max); for (i = 0; i < num; i++) { rates[i] = (p[i] & 0x7f) * 500000; /* convert to bps */ } return 0; } static int orinoco_ioctl_getiwrange(struct net_device *dev, struct iw_point *rrq) { struct orinoco_private *priv = netdev_priv(dev); int err = 0; int mode; struct iw_range range; int numrates; int i, k; unsigned long flags; TRACE_ENTER(dev->name); if (!access_ok(VERIFY_WRITE, rrq->pointer, sizeof(range))) return -EFAULT; rrq->length = sizeof(range); if (orinoco_lock(priv, &flags) != 0) return -EBUSY; mode = priv->iw_mode; orinoco_unlock(priv, &flags); memset(&range, 0, sizeof(range)); /* Much of this shamelessly taken from wvlan_cs.c. No idea * what it all means -dgibson */ range.we_version_compiled = WIRELESS_EXT; range.we_version_source = 11; range.min_nwid = range.max_nwid = 0; /* We don't use nwids */ /* Set available channels/frequencies */ range.num_channels = NUM_CHANNELS; k = 0; for (i = 0; i < NUM_CHANNELS; i++) { if (priv->channel_mask & (1 << i)) { range.freq[k].i = i + 1; range.freq[k].m = channel_frequency[i] * 100000; range.freq[k].e = 1; k++; } if (k >= IW_MAX_FREQUENCIES) break; } range.num_frequency = k; range.sensitivity = 3; if ((mode == IW_MODE_ADHOC) && (priv->spy_number == 0)){ /* Quality stats meaningless in ad-hoc mode */ range.max_qual.qual = 0; range.max_qual.level = 0; range.max_qual.noise = 0; range.avg_qual.qual = 0; range.avg_qual.level = 0; range.avg_qual.noise = 0; } else { range.max_qual.qual = 0x8b - 0x2f; range.max_qual.level = 0x2f - 0x95 - 1; range.max_qual.noise = 0x2f - 0x95 - 1; /* Need to get better values */ range.avg_qual.qual = 0x24; range.avg_qual.level = 0xC2; range.avg_qual.noise = 0x9E; } err = orinoco_hw_get_bitratelist(priv, &numrates, range.bitrate, IW_MAX_BITRATES); if (err) return err; range.num_bitrates = numrates; /* 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(numrates > 2) range.throughput = 5 * 1000 * 1000; /* ~5 Mb/s */ else range.throughput = 1.5 * 1000 * 1000; /* ~1.5 Mb/s */ range.min_rts = 0; range.max_rts = 2347; range.min_frag = 256; range.max_frag = 2346; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if (priv->has_wep) { range.max_encoding_tokens = ORINOCO_MAX_KEYS; range.encoding_size[0] = SMALL_KEY_SIZE; range.num_encoding_sizes = 1; if (priv->has_big_wep) { range.encoding_size[1] = LARGE_KEY_SIZE; range.num_encoding_sizes = 2; } } else { range.num_encoding_sizes = 0; range.max_encoding_tokens = 0; } orinoco_unlock(priv, &flags); range.min_pmp = 0; range.max_pmp = 65535000; range.min_pmt = 0; range.max_pmt = 65535 * 1000; /* ??? */ range.pmp_flags = IW_POWER_PERIOD; range.pmt_flags = IW_POWER_TIMEOUT; range.pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R; range.num_txpower = 1; range.txpower[0] = 15; /* 15dBm */ range.txpower_capa = IW_TXPOW_DBM; 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 = 0; range.max_retry = 65535; /* ??? */ range.min_r_time = 0; range.max_r_time = 65535 * 1000; /* ??? */ if (copy_to_user(rrq->pointer, &range, sizeof(range))) return -EFAULT; TRACE_EXIT(dev->name); return 0; } static int orinoco_ioctl_setiwencode(struct net_device *dev, struct iw_point *erq) { struct orinoco_private *priv = netdev_priv(dev); int index = (erq->flags & IW_ENCODE_INDEX) - 1; int setindex = priv->tx_key; int enable = priv->wep_on; int restricted = priv->wep_restrict; u16 xlen = 0; int err = 0; char keybuf[ORINOCO_MAX_KEY_SIZE]; unsigned long flags; if (! priv->has_wep) return -EOPNOTSUPP; if (erq->pointer) { /* We actually have a key to set - check its length */ if (erq->length > LARGE_KEY_SIZE) return -E2BIG; if ( (erq->length > SMALL_KEY_SIZE) && !priv->has_big_wep ) return -E2BIG; if (copy_from_user(keybuf, erq->pointer, erq->length)) return -EFAULT; } if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if (erq->pointer) { if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) index = priv->tx_key; /* Adjust key length to a supported value */ if (erq->length > SMALL_KEY_SIZE) { xlen = LARGE_KEY_SIZE; } else if (erq->length > 0) { xlen = SMALL_KEY_SIZE; } else xlen = 0; /* Switch on WEP if off */ if ((!enable) && (xlen > 0)) { setindex = index; enable = 1; } } else { /* Important note : if the user do "iwconfig eth0 enc off", * we will arrive there with an index of -1. This is valid * but need to be taken care off... Jean II */ if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) { if((index != -1) || (erq->flags == 0)) { err = -EINVAL; goto out; } } else { /* Set the index : Check that the key is valid */ if(priv->keys[index].len == 0) { err = -EINVAL; goto out; } setindex = index; } } if (erq->flags & IW_ENCODE_DISABLED) enable = 0; if (erq->flags & IW_ENCODE_OPEN) restricted = 0; if (erq->flags & IW_ENCODE_RESTRICTED) restricted = 1; if (erq->pointer) { priv->keys[index].len = cpu_to_le16(xlen); memset(priv->keys[index].data, 0, sizeof(priv->keys[index].data)); memcpy(priv->keys[index].data, keybuf, erq->length); } priv->tx_key = setindex; /* Try fast key change if connected and only keys are changed */ if (priv->wep_on && enable && (priv->wep_restrict == restricted) && netif_carrier_ok(dev)) { err = __orinoco_hw_setup_wepkeys(priv); /* No need to commit if successful */ goto out; } priv->wep_on = enable; priv->wep_restrict = restricted; out: orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getiwencode(struct net_device *dev, struct iw_point *erq) { struct orinoco_private *priv = netdev_priv(dev); int index = (erq->flags & IW_ENCODE_INDEX) - 1; u16 xlen = 0; char keybuf[ORINOCO_MAX_KEY_SIZE]; unsigned long flags; if (! priv->has_wep) return -EOPNOTSUPP; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if ((index < 0) || (index >= ORINOCO_MAX_KEYS)) index = priv->tx_key; erq->flags = 0; if (! priv->wep_on) erq->flags |= IW_ENCODE_DISABLED; erq->flags |= index + 1; if (priv->wep_restrict) erq->flags |= IW_ENCODE_RESTRICTED; else erq->flags |= IW_ENCODE_OPEN; xlen = le16_to_cpu(priv->keys[index].len); erq->length = xlen; memcpy(keybuf, priv->keys[index].data, ORINOCO_MAX_KEY_SIZE); orinoco_unlock(priv, &flags); if (erq->pointer) { if (copy_to_user(erq->pointer, keybuf, xlen)) return -EFAULT; } return 0; } static int orinoco_ioctl_setessid(struct net_device *dev, struct iw_point *erq) { struct orinoco_private *priv = netdev_priv(dev); char essidbuf[IW_ESSID_MAX_SIZE+1]; unsigned long flags; /* Note : ESSID is ignored in Ad-Hoc demo mode, but we can set it * anyway... - Jean II */ memset(&essidbuf, 0, sizeof(essidbuf)); if (erq->flags) { /* iwconfig includes the NUL in the specified length */ if (erq->length > IW_ESSID_MAX_SIZE+1) return -E2BIG; if (copy_from_user(&essidbuf, erq->pointer, erq->length)) return -EFAULT; essidbuf[IW_ESSID_MAX_SIZE] = '\0'; } if (orinoco_lock(priv, &flags) != 0) return -EBUSY; memcpy(priv->desired_essid, essidbuf, sizeof(priv->desired_essid)); orinoco_unlock(priv, &flags); return 0; } static int orinoco_ioctl_getessid(struct net_device *dev, struct iw_point *erq) { struct orinoco_private *priv = netdev_priv(dev); char essidbuf[IW_ESSID_MAX_SIZE+1]; int active; int err = 0; unsigned long flags; TRACE_ENTER(dev->name); if (netif_running(dev)) { err = orinoco_hw_get_essid(priv, &active, essidbuf); if (err) return err; } else { if (orinoco_lock(priv, &flags) != 0) return -EBUSY; memcpy(essidbuf, priv->desired_essid, sizeof(essidbuf)); orinoco_unlock(priv, &flags); } erq->flags = 1; erq->length = strlen(essidbuf) + 1; if (erq->pointer) if (copy_to_user(erq->pointer, essidbuf, erq->length)) return -EFAULT; TRACE_EXIT(dev->name); return 0; } static int orinoco_ioctl_setnick(struct net_device *dev, struct iw_point *nrq) { struct orinoco_private *priv = netdev_priv(dev); char nickbuf[IW_ESSID_MAX_SIZE+1]; unsigned long flags; if (nrq->length > IW_ESSID_MAX_SIZE) return -E2BIG; memset(nickbuf, 0, sizeof(nickbuf)); if (copy_from_user(nickbuf, nrq->pointer, nrq->length)) return -EFAULT; nickbuf[nrq->length] = '\0'; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; memcpy(priv->nick, nickbuf, sizeof(priv->nick)); orinoco_unlock(priv, &flags); return 0; } static int orinoco_ioctl_getnick(struct net_device *dev, struct iw_point *nrq) { struct orinoco_private *priv = netdev_priv(dev); char nickbuf[IW_ESSID_MAX_SIZE+1]; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE+1); orinoco_unlock(priv, &flags); nrq->length = strlen(nickbuf)+1; if (copy_to_user(nrq->pointer, nickbuf, sizeof(nickbuf))) return -EFAULT; return 0; } static int orinoco_ioctl_setfreq(struct net_device *dev, struct iw_freq *frq) { struct orinoco_private *priv = netdev_priv(dev); int chan = -1; unsigned long flags; /* We can only use this in Ad-Hoc demo mode to set the operating * frequency, or in IBSS mode to set the frequency where the IBSS * will be created - Jean II */ if (priv->iw_mode != IW_MODE_ADHOC) return -EOPNOTSUPP; if ( (frq->e == 0) && (frq->m <= 1000) ) { /* Setting by channel number */ chan = frq->m; } else { /* Setting by frequency - search the table */ int mult = 1; int i; for (i = 0; i < (6 - frq->e); i++) mult *= 10; for (i = 0; i < NUM_CHANNELS; i++) if (frq->m == (channel_frequency[i] * mult)) chan = i+1; } if ( (chan < 1) || (chan > NUM_CHANNELS) || ! (priv->channel_mask & (1 << (chan-1)) ) ) return -EINVAL; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; priv->channel = chan; orinoco_unlock(priv, &flags); return 0; } static int orinoco_ioctl_getsens(struct net_device *dev, struct iw_param *srq) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; u16 val; int err; unsigned long flags; if (!priv->has_sensitivity) return -EOPNOTSUPP; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFSYSTEMSCALE, &val); orinoco_unlock(priv, &flags); if (err) return err; srq->value = val; srq->fixed = 0; /* auto */ return 0; } static int orinoco_ioctl_setsens(struct net_device *dev, struct iw_param *srq) { struct orinoco_private *priv = netdev_priv(dev); int val = srq->value; unsigned long flags; if (!priv->has_sensitivity) return -EOPNOTSUPP; if ((val < 1) || (val > 3)) return -EINVAL; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; priv->ap_density = val; orinoco_unlock(priv, &flags); return 0; } static int orinoco_ioctl_setrts(struct net_device *dev, struct iw_param *rrq) { struct orinoco_private *priv = netdev_priv(dev); int val = rrq->value; unsigned long flags; if (rrq->disabled) val = 2347; if ( (val < 0) || (val > 2347) ) return -EINVAL; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; priv->rts_thresh = val; orinoco_unlock(priv, &flags); return 0; } static int orinoco_ioctl_setfrag(struct net_device *dev, struct iw_param *frq) { struct orinoco_private *priv = netdev_priv(dev); int err = 0; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if (priv->has_mwo) { if (frq->disabled) priv->mwo_robust = 0; else { if (frq->fixed) printk(KERN_WARNING "%s: Fixed fragmentation is " "not supported on this firmware. " "Using MWO robust instead.\n", dev->name); priv->mwo_robust = 1; } } else { if (frq->disabled) priv->frag_thresh = 2346; else { if ( (frq->value < 256) || (frq->value > 2346) ) err = -EINVAL; else priv->frag_thresh = frq->value & ~0x1; /* must be even */ } } orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getfrag(struct net_device *dev, struct iw_param *frq) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err = 0; u16 val; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if (priv->has_mwo) { err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMWOROBUST_AGERE, &val); if (err) val = 0; frq->value = val ? 2347 : 0; frq->disabled = ! val; frq->fixed = 0; } else { err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFFRAGMENTATIONTHRESHOLD, &val); if (err) val = 0; frq->value = val; frq->disabled = (val >= 2346); frq->fixed = 1; } orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_setrate(struct net_device *dev, struct iw_param *rrq) { struct orinoco_private *priv = netdev_priv(dev); int err = 0; int ratemode = -1; int bitrate; /* 100s of kilobits */ int i; unsigned long flags; /* As the user space doesn't know our highest rate, it uses -1 * to ask us to set the highest rate. Test it using "iwconfig * ethX rate auto" - Jean II */ if (rrq->value == -1) bitrate = 110; else { if (rrq->value % 100000) return -EINVAL; bitrate = rrq->value / 100000; } if ( (bitrate != 10) && (bitrate != 20) && (bitrate != 55) && (bitrate != 110) ) return -EINVAL; for (i = 0; i < BITRATE_TABLE_SIZE; i++) if ( (bitrate_table[i].bitrate == bitrate) && (bitrate_table[i].automatic == ! rrq->fixed) ) { ratemode = i; break; } if (ratemode == -1) return -EINVAL; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; priv->bitratemode = ratemode; orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getrate(struct net_device *dev, struct iw_param *rrq) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err = 0; int ratemode; int i; u16 val; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; ratemode = priv->bitratemode; BUG_ON((ratemode < 0) || (ratemode >= BITRATE_TABLE_SIZE)); rrq->value = bitrate_table[ratemode].bitrate * 100000; rrq->fixed = ! bitrate_table[ratemode].automatic; rrq->disabled = 0; /* If the interface is running we try to find more about the current mode */ if (netif_running(dev)) { err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CURRENTTXRATE, &val); if (err) goto out; switch (priv->firmware_type) { case FIRMWARE_TYPE_AGERE: /* Lucent style rate */ /* Note : in Lucent firmware, the return value of * HERMES_RID_CURRENTTXRATE is the bitrate in Mb/s, * and therefore is totally different from the * encoding of HERMES_RID_CNFTXRATECONTROL. * Don't forget that 6Mb/s is really 5.5Mb/s */ if (val == 6) rrq->value = 5500000; else rrq->value = val * 1000000; break; case FIRMWARE_TYPE_INTERSIL: /* Intersil style rate */ case FIRMWARE_TYPE_SYMBOL: /* Symbol style rate */ for (i = 0; i < BITRATE_TABLE_SIZE; i++) if (bitrate_table[i].intersil_txratectrl == val) { ratemode = i; break; } if (i >= BITRATE_TABLE_SIZE) printk(KERN_INFO "%s: Unable to determine current bitrate (0x%04hx)\n", dev->name, val); rrq->value = bitrate_table[ratemode].bitrate * 100000; break; default: BUG(); } } out: orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_setpower(struct net_device *dev, struct iw_param *prq) { struct orinoco_private *priv = netdev_priv(dev); int err = 0; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if (prq->disabled) { priv->pm_on = 0; } else { switch (prq->flags & IW_POWER_MODE) { case IW_POWER_UNICAST_R: priv->pm_mcast = 0; priv->pm_on = 1; break; case IW_POWER_ALL_R: priv->pm_mcast = 1; priv->pm_on = 1; break; case IW_POWER_ON: /* No flags : but we may have a value - Jean II */ break; default: err = -EINVAL; } if (err) goto out; if (prq->flags & IW_POWER_TIMEOUT) { priv->pm_on = 1; priv->pm_timeout = prq->value / 1000; } if (prq->flags & IW_POWER_PERIOD) { priv->pm_on = 1; priv->pm_period = prq->value / 1000; } /* It's valid to not have a value if we are just toggling * the flags... Jean II */ if(!priv->pm_on) { err = -EINVAL; goto out; } } out: orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getpower(struct net_device *dev, struct iw_param *prq) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err = 0; u16 enable, period, timeout, mcast; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMENABLED, &enable); if (err) goto out; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMAXSLEEPDURATION, &period); if (err) goto out; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFPMHOLDOVERDURATION, &timeout); if (err) goto out; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_CNFMULTICASTRECEIVE, &mcast); if (err) goto out; prq->disabled = !enable; /* Note : by default, display the period */ if ((prq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) { prq->flags = IW_POWER_TIMEOUT; prq->value = timeout * 1000; } else { prq->flags = IW_POWER_PERIOD; prq->value = period * 1000; } if (mcast) prq->flags |= IW_POWER_ALL_R; else prq->flags |= IW_POWER_UNICAST_R; out: orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getretry(struct net_device *dev, struct iw_param *rrq) { struct orinoco_private *priv = netdev_priv(dev); hermes_t *hw = &priv->hw; int err = 0; u16 short_limit, long_limit, lifetime; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_SHORTRETRYLIMIT, &short_limit); if (err) goto out; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_LONGRETRYLIMIT, &long_limit); if (err) goto out; err = hermes_read_wordrec(hw, USER_BAP, HERMES_RID_MAXTRANSMITLIFETIME, &lifetime); if (err) goto out; rrq->disabled = 0; /* Can't be disabled */ /* Note : by default, display the retry number */ if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) { rrq->flags = IW_RETRY_LIFETIME; rrq->value = lifetime * 1000; /* ??? */ } else { /* By default, display the min number */ if ((rrq->flags & IW_RETRY_MAX)) { rrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX; rrq->value = long_limit; } else { rrq->flags = IW_RETRY_LIMIT; rrq->value = short_limit; if(short_limit != long_limit) rrq->flags |= IW_RETRY_MIN; } } out: orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_setibssport(struct net_device *dev, struct iwreq *wrq) { struct orinoco_private *priv = netdev_priv(dev); int val = *( (int *) wrq->u.name ); unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; priv->ibss_port = val ; /* Actually update the mode we are using */ set_port_type(priv); orinoco_unlock(priv, &flags); return 0; } static int orinoco_ioctl_getibssport(struct net_device *dev, struct iwreq *wrq) { struct orinoco_private *priv = netdev_priv(dev); int *val = (int *)wrq->u.name; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; *val = priv->ibss_port; orinoco_unlock(priv, &flags); return 0; } static int orinoco_ioctl_setport3(struct net_device *dev, struct iwreq *wrq) { struct orinoco_private *priv = netdev_priv(dev); int val = *( (int *) wrq->u.name ); int err = 0; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; switch (val) { case 0: /* Try to do IEEE ad-hoc mode */ if (! priv->has_ibss) { err = -EINVAL; break; } priv->prefer_port3 = 0; break; case 1: /* Try to do Lucent proprietary ad-hoc mode */ if (! priv->has_port3) { err = -EINVAL; break; } priv->prefer_port3 = 1; break; default: err = -EINVAL; } if (! err) /* Actually update the mode we are using */ set_port_type(priv); orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getport3(struct net_device *dev, struct iwreq *wrq) { struct orinoco_private *priv = netdev_priv(dev); int *val = (int *)wrq->u.name; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; *val = priv->prefer_port3; orinoco_unlock(priv, &flags); return 0; } /* Spy is used for link quality/strength measurements in Ad-Hoc mode * Jean II */ static int orinoco_ioctl_setspy(struct net_device *dev, struct iw_point *srq) { struct orinoco_private *priv = netdev_priv(dev); struct sockaddr address[IW_MAX_SPY]; int number = srq->length; int i; int err = 0; unsigned long flags; /* Check the number of addresses */ if (number > IW_MAX_SPY) return -E2BIG; /* Get the data in the driver */ if (srq->pointer) { if (copy_from_user(address, srq->pointer, sizeof(struct sockaddr) * number)) return -EFAULT; } /* Make sure nobody mess with the structure while we do */ if (orinoco_lock(priv, &flags) != 0) return -EBUSY; /* orinoco_lock() doesn't disable interrupts, so make sure the * interrupt rx path don't get confused while we copy */ priv->spy_number = 0; if (number > 0) { /* Extract the addresses */ for (i = 0; i < number; i++) memcpy(priv->spy_address[i], address[i].sa_data, ETH_ALEN); /* Reset stats */ memset(priv->spy_stat, 0, sizeof(struct iw_quality) * IW_MAX_SPY); /* Set number of addresses */ priv->spy_number = number; } /* Now, let the others play */ orinoco_unlock(priv, &flags); return err; } static int orinoco_ioctl_getspy(struct net_device *dev, struct iw_point *srq) { struct orinoco_private *priv = netdev_priv(dev); struct sockaddr address[IW_MAX_SPY]; struct iw_quality spy_stat[IW_MAX_SPY]; int number; int i; unsigned long flags; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; number = priv->spy_number; if ((number > 0) && (srq->pointer)) { /* Create address struct */ for (i = 0; i < number; i++) { memcpy(address[i].sa_data, priv->spy_address[i], ETH_ALEN); address[i].sa_family = AF_UNIX; } /* Copy stats */ /* In theory, we should disable irqs while copying the stats * because the rx path might update it in the middle... * Bah, who care ? - Jean II */ memcpy(&spy_stat, priv->spy_stat, sizeof(struct iw_quality) * IW_MAX_SPY); for (i=0; i < number; i++) priv->spy_stat[i].updated = 0; } orinoco_unlock(priv, &flags); /* Push stuff to user space */ srq->length = number; if(copy_to_user(srq->pointer, address, sizeof(struct sockaddr) * number)) return -EFAULT; if(copy_to_user(srq->pointer + (sizeof(struct sockaddr)*number), &spy_stat, sizeof(struct iw_quality) * number)) return -EFAULT; return 0; } static int orinoco_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) { struct orinoco_private *priv = netdev_priv(dev); struct iwreq *wrq = (struct iwreq *)rq; int err = 0; int tmp; int changed = 0; unsigned long flags; TRACE_ENTER(dev->name); /* In theory, we could allow most of the the SET stuff to be * done. In practice, the lapse of time at startup when the * card is not ready is very short, so why bother... Note * that netif_device_present is different from up/down * (ifconfig), when the device is not yet up, it is usually * already ready... Jean II */ if (! netif_device_present(dev)) return -ENODEV; switch (cmd) { case SIOCGIWNAME: strcpy(wrq->u.name, "IEEE 802.11-DS"); break; case SIOCGIWAP: wrq->u.ap_addr.sa_family = ARPHRD_ETHER; err = orinoco_hw_get_bssid(priv, wrq->u.ap_addr.sa_data); break; case SIOCGIWRANGE: err = orinoco_ioctl_getiwrange(dev, &wrq->u.data); break; case SIOCSIWMODE: if (orinoco_lock(priv, &flags) != 0) return -EBUSY; switch (wrq->u.mode) { case IW_MODE_ADHOC: if (! (priv->has_ibss || priv->has_port3) ) err = -EINVAL; else { priv->iw_mode = IW_MODE_ADHOC; changed = 1; } break; case IW_MODE_INFRA: priv->iw_mode = IW_MODE_INFRA; changed = 1; break; default: err = -EINVAL; break; } set_port_type(priv); orinoco_unlock(priv, &flags); break; case SIOCGIWMODE: if (orinoco_lock(priv, &flags) != 0) return -EBUSY; wrq->u.mode = priv->iw_mode; orinoco_unlock(priv, &flags); break; case SIOCSIWENCODE: err = orinoco_ioctl_setiwencode(dev, &wrq->u.encoding); if (! err) changed = 1; break; case SIOCGIWENCODE: if (! capable(CAP_NET_ADMIN)) { err = -EPERM; break; } err = orinoco_ioctl_getiwencode(dev, &wrq->u.encoding); break; case SIOCSIWESSID: err = orinoco_ioctl_setessid(dev, &wrq->u.essid); if (! err) changed = 1; break; case SIOCGIWESSID: err = orinoco_ioctl_getessid(dev, &wrq->u.essid); break; case SIOCSIWNICKN: err = orinoco_ioctl_setnick(dev, &wrq->u.data); if (! err) changed = 1; break; case SIOCGIWNICKN: err = orinoco_ioctl_getnick(dev, &wrq->u.data); break; case SIOCGIWFREQ: tmp = orinoco_hw_get_freq(priv); if (tmp < 0) { err = tmp; } else { wrq->u.freq.m = tmp; wrq->u.freq.e = 1; } break; case SIOCSIWFREQ: err = orinoco_ioctl_setfreq(dev, &wrq->u.freq); if (! err) changed = 1; break; case SIOCGIWSENS: err = orinoco_ioctl_getsens(dev, &wrq->u.sens); break; case SIOCSIWSENS: err = orinoco_ioctl_setsens(dev, &wrq->u.sens); if (! err) changed = 1; break; case SIOCGIWRTS: wrq->u.rts.value = priv->rts_thresh; wrq->u.rts.disabled = (wrq->u.rts.value == 2347); wrq->u.rts.fixed = 1; break; case SIOCSIWRTS: err = orinoco_ioctl_setrts(dev, &wrq->u.rts); if (! err) changed = 1; break; case SIOCSIWFRAG: err = orinoco_ioctl_setfrag(dev, &wrq->u.frag); if (! err) changed = 1; break; case SIOCGIWFRAG: err = orinoco_ioctl_getfrag(dev, &wrq->u.frag); break; case SIOCSIWRATE: err = orinoco_ioctl_setrate(dev, &wrq->u.bitrate); if (! err) changed = 1; break; case SIOCGIWRATE: err = orinoco_ioctl_getrate(dev, &wrq->u.bitrate); break; case SIOCSIWPOWER: err = orinoco_ioctl_setpower(dev, &wrq->u.power); if (! err) changed = 1; break; case SIOCGIWPOWER: err = orinoco_ioctl_getpower(dev, &wrq->u.power); break; case SIOCGIWTXPOW: /* The card only supports one tx power, so this is easy */ wrq->u.txpower.value = 15; /* dBm */ wrq->u.txpower.fixed = 1; wrq->u.txpower.disabled = 0; wrq->u.txpower.flags = IW_TXPOW_DBM; break; case SIOCSIWRETRY: err = -EOPNOTSUPP; break; case SIOCGIWRETRY: err = orinoco_ioctl_getretry(dev, &wrq->u.retry); break; case SIOCSIWSPY: err = orinoco_ioctl_setspy(dev, &wrq->u.data); break; case SIOCGIWSPY: err = orinoco_ioctl_getspy(dev, &wrq->u.data); break; case SIOCGIWPRIV: if (wrq->u.data.pointer) { struct iw_priv_args privtab[] = { { SIOCIWFIRSTPRIV + 0x0, 0, 0, "force_reset" }, { SIOCIWFIRSTPRIV + 0x1, 0, 0, "card_reset" }, { SIOCIWFIRSTPRIV + 0x2, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_port3" }, { SIOCIWFIRSTPRIV + 0x3, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_port3" }, { SIOCIWFIRSTPRIV + 0x4, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble" }, { SIOCIWFIRSTPRIV + 0x5, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_preamble" }, { SIOCIWFIRSTPRIV + 0x6, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_ibssport" }, { SIOCIWFIRSTPRIV + 0x7, 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_ibssport" }, }; wrq->u.data.length = sizeof(privtab) / sizeof(privtab[0]); if (copy_to_user(wrq->u.data.pointer, privtab, sizeof(privtab))) err = -EFAULT; } break; case SIOCIWFIRSTPRIV + 0x0: /* force_reset */ case SIOCIWFIRSTPRIV + 0x1: /* card_reset */ if (! capable(CAP_NET_ADMIN)) { err = -EPERM; break; } printk(KERN_DEBUG "%s: Force scheduling reset!\n", dev->name); schedule_work(&priv->reset_work); break; case SIOCIWFIRSTPRIV + 0x2: /* set_port3 */ if (! capable(CAP_NET_ADMIN)) { err = -EPERM; break; } err = orinoco_ioctl_setport3(dev, wrq); if (! err) changed = 1; break; case SIOCIWFIRSTPRIV + 0x3: /* get_port3 */ err = orinoco_ioctl_getport3(dev, wrq); break; case SIOCIWFIRSTPRIV + 0x4: /* set_preamble */ if (! capable(CAP_NET_ADMIN)) { err = -EPERM; break; } /* 802.11b has recently defined some short preamble. * Basically, the Phy header has been reduced in size. * This increase performance, especially at high rates * (the preamble is transmitted at 1Mb/s), unfortunately * this give compatibility troubles... - Jean II */ if(priv->has_preamble) { int val = *( (int *) wrq->u.name ); if (orinoco_lock(priv, &flags) != 0) return -EBUSY; if (val) priv->preamble = 1; else priv->preamble = 0; orinoco_unlock(priv, &flags); changed = 1; } else err = -EOPNOTSUPP; break; case SIOCIWFIRSTPRIV + 0x5: /* get_preamble */ if(priv->has_preamble) { int *val = (int *)wrq->u.name; if (orinoco_lock(priv, &flags) != 0) return -EBUSY; *val = priv->preamble; orinoco_unlock(priv, &flags); } else err = -EOPNOTSUPP; break; case SIOCIWFIRSTPRIV + 0x6: /* set_ibssport */ if (! capable(CAP_NET_ADMIN)) { err = -EPERM; break; } err = orinoco_ioctl_setibssport(dev, wrq); if (! err) changed = 1; break; case SIOCIWFIRSTPRIV + 0x7: /* get_ibssport */ err = orinoco_ioctl_getibssport(dev, wrq); break; default: err = -EOPNOTSUPP; } if (! err && changed && netif_running(dev)) { err = orinoco_reconfigure(dev); } TRACE_EXIT(dev->name); return err; } /********************************************************************/ /* Debugging */ /********************************************************************/ #if 0 static void show_rx_frame(struct orinoco_rxframe_hdr *frame) { printk(KERN_DEBUG "RX descriptor:\n"); printk(KERN_DEBUG " status = 0x%04x\n", frame->desc.status); printk(KERN_DEBUG " time = 0x%08x\n", frame->desc.time); printk(KERN_DEBUG " silence = 0x%02x\n", frame->desc.silence); printk(KERN_DEBUG " signal = 0x%02x\n", frame->desc.signal); printk(KERN_DEBUG " rate = 0x%02x\n", frame->desc.rate); printk(KERN_DEBUG " rxflow = 0x%02x\n", frame->desc.rxflow); printk(KERN_DEBUG " reserved = 0x%08x\n", frame->desc.reserved); printk(KERN_DEBUG "IEEE 802.11 header:\n"); printk(KERN_DEBUG " frame_ctl = 0x%04x\n", frame->p80211.frame_ctl); printk(KERN_DEBUG " duration_id = 0x%04x\n", frame->p80211.duration_id); printk(KERN_DEBUG " addr1 = %02x:%02x:%02x:%02x:%02x:%02x\n", frame->p80211.addr1[0], frame->p80211.addr1[1], frame->p80211.addr1[2], frame->p80211.addr1[3], frame->p80211.addr1[4], frame->p80211.addr1[5]); printk(KERN_DEBUG " addr2 = %02x:%02x:%02x:%02x:%02x:%02x\n", frame->p80211.addr2[0], frame->p80211.addr2[1], frame->p80211.addr2[2], frame->p80211.addr2[3], frame->p80211.addr2[4], frame->p80211.addr2[5]); printk(KERN_DEBUG " addr3 = %02x:%02x:%02x:%02x:%02x:%02x\n", frame->p80211.addr3[0], frame->p80211.addr3[1], frame->p80211.addr3[2], frame->p80211.addr3[3], frame->p80211.addr3[4], frame->p80211.addr3[5]); printk(KERN_DEBUG " seq_ctl = 0x%04x\n", frame->p80211.seq_ctl); printk(KERN_DEBUG " addr4 = %02x:%02x:%02x:%02x:%02x:%02x\n", frame->p80211.addr4[0], frame->p80211.addr4[1], frame->p80211.addr4[2], frame->p80211.addr4[3], frame->p80211.addr4[4], frame->p80211.addr4[5]); printk(KERN_DEBUG " data_len = 0x%04x\n", frame->p80211.data_len); printk(KERN_DEBUG "IEEE 802.3 header:\n"); printk(KERN_DEBUG " dest = %02x:%02x:%02x:%02x:%02x:%02x\n", frame->p8023.h_dest[0], frame->p8023.h_dest[1], frame->p8023.h_dest[2], frame->p8023.h_dest[3], frame->p8023.h_dest[4], frame->p8023.h_dest[5]); printk(KERN_DEBUG " src = %02x:%02x:%02x:%02x:%02x:%02x\n", frame->p8023.h_source[0], frame->p8023.h_source[1], frame->p8023.h_source[2], frame->p8023.h_source[3], frame->p8023.h_source[4], frame->p8023.h_source[5]); printk(KERN_DEBUG " len = 0x%04x\n", frame->p8023.h_proto); printk(KERN_DEBUG "IEEE 802.2 LLC/SNAP header:\n"); printk(KERN_DEBUG " DSAP = 0x%02x\n", frame->p8022.dsap); printk(KERN_DEBUG " SSAP = 0x%02x\n", frame->p8022.ssap); printk(KERN_DEBUG " ctrl = 0x%02x\n", frame->p8022.ctrl); printk(KERN_DEBUG " OUI = %02x:%02x:%02x\n", frame->p8022.oui[0], frame->p8022.oui[1], frame->p8022.oui[2]); printk(KERN_DEBUG " ethertype = 0x%04x\n", frame->ethertype); } #endif /* 0 */ /********************************************************************/ /* Module initialization */ /********************************************************************/ EXPORT_SYMBOL(alloc_orinocodev); EXPORT_SYMBOL(free_orinocodev); EXPORT_SYMBOL(__orinoco_up); EXPORT_SYMBOL(__orinoco_down); EXPORT_SYMBOL(orinoco_reinit_firmware); EXPORT_SYMBOL(orinoco_interrupt); /* Can't be declared "const" or the whole __initdata section will * become const */ static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION " (David Gibson , " "Pavel Roskin , et al)"; static int __init init_orinoco(void) { printk(KERN_DEBUG "%s\n", version); return 0; } static void __exit exit_orinoco(void) { } module_init(init_orinoco); module_exit(exit_orinoco);