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364ec15dcb
freebsd-skq/sys/dev/ray/if_ray.c
dmlb 364ec15dcb A bit of a messy monster. 
Simple stuff
------------

	Split _download up so that the MIB settings are in their own functions.

	Made "tx completed but status is ..." a recoverable error

	Cut down verbosity of "unloaded" messages

	Moved ccs_free and com_runq from intr_ccs to ecf_done and runq_done
	to avoid embarasing mistakes and waits.

	Merged runq_add and runq_arr into one and called it runq_add

	Made RAY_COM_DUMP a real debug called RAY_DCOM

	Consistnet debugging around tsleeps.

	Use bus_activate_resource for attr/cm mapping, and set the flags
	correctly in the allocation routines (needs more hacks to
	sys/pccard/pcic.c)

	com_malloc is now seperated from the comq initialization. This was
	done whilst trying to set automatic variables for the comqs.

Harder Stuff
------------

	As part of the IFF_RUNNING fixes, remove the panic in runq if we are
	not running.

	Change, again, runq_add. This time we don't do any cleaning up
	if there were errors. This is so that callers get the chance
	to re-try (not that I ever see it being used).

	In runq_add, only sleep when there is something to sleep on!

	ioctl locking routines, stolen from awi.c but not used


Hardest Stuff
-------------

	Dealing with serialing ioctls correctly means that we must QUEUE
	changes to IFF_RUNNING and check it in the QUEUED commands, not
	in the user commands. Whilst simple to state, it took a few
	hours of head scratching to get it right. The realisation was that
	I only have to guarantee that sub-commands from a single process
	are serialised and "atomic", and that they check the status of the
	interface flags when invoked and not when they are queued.

	Another way of looking at it, is that the driver's state is stored
	in the runq and the IFF_RUNNING flag. These must be changed together.

	What this means practically, is that IFF_RUNNING is set after
	we have started/joined/associated with a network. And it is
	cleared by ray_stop via the runq so that unfinsished commands are
	not distrupted.

	I still have to fix up promisc, upp/repparams and mcast.

	Oh yeah, stop is essentially a noop in that it only
	changes IFF_RUNNING
2000-05-28 23:10:12 +00:00

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/*
* Copyright (C) 2000
* Dr. Duncan McLennan Barclay, dmlb@ragnet.demon.co.uk.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY DUNCAN BARCLAY AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL DUNCAN BARCLAY OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: if_ray.c,v 1.29 2000/05/11 18:55:38 dmlb Exp $
*
*/
/* $NetBSD: if_ray.c,v 1.12 2000/02/07 09:36:27 augustss Exp $ */
/*
* Copyright (c) 2000 Christian E. Hopps
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
*
* Card configuration
* ==================
*
* This card is unusual in that it uses both common and attribute
* memory whilst working. The -stable versions of FreeBSD have a real
* problem managing and setting up the correct memory maps. This
* driver should reset the memory maps correctly under PAO and non-PAO
* -stable systems. Work is in hand to fix these problems for -current.
*
* The first fixes the brain deadness of pccardd (where it reads the
* CIS for common memory, sets it all up and then throws it all away
* assuming the card is an ed driver...). Note that this could be
* dangerous (because it doesn't interact with pccardd) if you
* use other memory mapped cards at the same time.
*
* The second option ensures that common memory is remapped whenever
* we are going to access it (we can't just do it once, as something
* like pccardd may have read the attribute memory and pccard.c
* doesn't re-map the last active window - it remaps the last
* non-active window...).
*
*
* Ad-hoc and infra-structure modes
* ================================
*
* At present only the ad-hoc mode is being worked on.
*
* Apart from just writing the code for infrastructure mode I have a
* few concerns about both the Linux and NetBSD drivers in this area.
* They don't seem to differentiate between the MAC address of the AP
* and the BSS_ID of the network. I presume this is handled when
* joining a managed n/w and the network parameters are updated, but
* I'm not sure. How does this interact with ARP? For mobility we want
* to be able to move around without worrying about which AP we are
* actually talking to - we should always talk to the BSS_ID.
*
* The Linux driver also seems to have the capability to act as an AP.
* I wonder what facilities the "AP" can provide within a driver? We can
* probably use the BRIDGE code to form an ESS but I don't think
* power saving etc. is easy.
*
*
* Packet framing/encapsulation
* ================================
*
* Currently we only support the Webgear encapsulation
* 802.11 header <net/if_ieee80211.h>struct ieee80211_header
* 802.3 header <net/ethernet.h>struct ether_header
* 802.2 LLC header
* 802.2 SNAP header
*
* We should support whatever packet types the following drivers have
* if_wi.c FreeBSD, RFC1042
* if_ray.c NetBSD Webgear, RFC1042
* rayctl.c Linux Webgear, RFC1042
* also whatever we can divine from the NDC Access points and Kanda's boxes.
*
* Most drivers appear to have a RFC1042 framing. The incoming packet is
* 802.11 header <net/if_ieee80211.h>struct ieee80211_header
* 802.2 LLC header
* 802.2 SNAP header
*
* This is translated to
* 802.3 header <net/ethernet.h>struct ether_header
* 802.2 LLC header
* 802.2 SNAP header
*
* Linux seems to look at the SNAP org_code and do some framings
* for IPX and APPLEARP on that. This just may be how Linux does IPX
* and NETATALK. Need to see how FreeBSD does these.
*
* Translation should be selected via if_media stuff or link types.
*
*
* Authentication
* ==============
*
* 802.11 provides two authentication mechanisms. The first is a very
* simple host based mechanism (like xhost) called Open System and the
* second is a more complex challenge/response called Shared Key built
* ontop of WEP.
*
* This driver only supports Open System and does not implement any
* host based control lists. In otherwords authentication is always
* granted to hosts wanting to authenticate with this station. This is
* the only sensible behaviour as the Open System mechanism uses MAC
* addresses to identify hosts. Send me patches if you need it!
*/
/*
* TODO
*
* _stop - mostly done
* would be nice to understand shutdown/or power save to prevent RX
* _reset - done
* just needs calling in the right places
* converted panics to resets - when tx packets are the wrong length
* may be needed in a couple of other places when I do more commands
* havenet - mostly done
* i think i've got all the places to set it right, but not so sure
* we reset it in all the right places
* _unload - done
* recreated most of stop but as card is unplugged don't try and
* access it to turn it off
* TX bpf - done
* RX bpf - done
* I would much prefer to have the complete 802.11 packet dropped to
* the bpf tap and then have a user land program parse the headers
* as needed. This way, tcpdump -w can be used to grab the raw data. If
* needed the 802.11 aware program can "translate" the .11 to ethernet
* for tcpdump -r
* use std timeout code for download - done
* was mainly moving a call and removing a load of stuff in
* download_done as it duplicates check_ccs and ccs_done
* promisoius - done
* add the start_join_net - done
* i needed it anyway
* remove startccs and startcmd - done
* as those were used for the NetBSD start timeout
* multicast - done but UNTESTED
* I don't have the ability/facilty to test this
* rxlevel - done
* stats reported via raycontrol
* getparams ioctl - done
* reported via raycontrol
* start_join_done needs a restart in download_done - done
* now use netbsd style start up
* ioctls - done
* use raycontrol
* translation, BSS_ID, countrycode, changing mode
* ifp->if_hdr length - done
* rx level and antenna cache - done
* antenna not used yet
* antenna tx side - done
* not tested!
* shutdown - done
* the driver seems to do the right thing for plugging and unplugging
* cards
* apm/resume - ignore
* apm+pccard is borken for 3.x - no one knows how to do it anymore
* fix the XXX code in start_join_done - n/a
* i've removed this as the error handling should be consistent for
* all ECF commands and none of the other commands bother!
* ray_update_params_done needs work - done
* as part of scheduler/promisc re-write
* raycontrol to be firmware version aware - done
* also report and update parameters IOCTLs are version aware
* make RAY_DPRINTFN RAY_DPRINTF - done
* make all printfs RAY_PRINTF - done
* faster TX routine - done
* see comments but OACTIVE is gone
* __P to die - done
* the rest is ansi anyway
* macroize the attribute read/write and 3.x driver - done
* like the SRAM macros?
* rename "translation" to framing for consitency with Webgear - done
* severe breakage with CCS allocation - done
* ccs are now allocated in a sleepable context with error recovery
* resource allocation should be be in attach and not probe - done
* resources allocated in probe hould be released before probe exits - done
* softc and ifp in variable definition block - done
* callout handles need rationalising. can probably remove sj_timerh - done
* why can't download use sc_promisc? - done
* still use the specific update in _init to ensure that the state is
* right until promisc is moved into current/desired parameters
*
* ***detach needs to drain comq
* ***stop/detach checks in more routines
* ***reset in ray_init_user?
* ***IFF_RUNNING checks are they really needed?
* this whole area is circumspect as RUNNING is reflection of the
* driver state and is subject to waits etc.
* - need to return EIO from runq routines that check
* - now understood and I have to get the runq routines to
* check as required
* init sequence is done
* stop sequence is done
* other not done
* ***PCATCH tsleeps and have something that will clean the runq
* ***priorities for each tsleep
* ***watchdog to catch screwed up removals?
* ***check and rationalise CM mappings
* use /sys/net/if_ieee80211.h and update it
* macro for gone and check is at head of all externally called routines
* probably function/macro to test unload at top of commands
* for ALLMULTI must go into PROMISC and filter unicast packets
* mcast code resurrection
* UPDATE_PARAMS seems to return via an interrupt - maybe the timeout
* is needed for wrong values?
* remember it must be serialised as it uses the HCF-ECF area
* check all RECERRs and make sure that some are RAY_PRINTF not RAY_DPRINTF
* havenet needs checking again
* error handling of ECF command completions
* proper setting of mib_hop_seq_len with country code for v4 firmware
* _reset - check where needed
* splimp or splnet?
* tidy #includes - we cant need all of these
* differeniate between parameters set in attach and init
* more translations
* spinning in ray_com_ecf
* make RAY_DEBUG a knob somehow - either sysctl or IFF_DEBUG
* fragmentation when rx level drops?
*
* infra mode stuff
* proper handling of the basic rate set - see the manual
* all ray_sj, ray_assoc sequencues need a "nicer" solution as we
* remember association and authentication
* need to consider WEP
* acting as ap - should be able to get working from the manual
*
* ray_nw_param
* promisc in here too? will need work in download_done and init
* sc_station_addr in here too (for changing mac address)
* move desired into the command structure?
* take downloaded MIB from a complete nw_param?
*/
#define XXX 0
#define XXX_ASSOC 0
#define XXX_ACTING_AP 0
#define XXX_INFRA 0
#define XXX_MCAST 0
#define XXX_RESET 0
#define XXX_IFQ_PEEK 0
#define XXX_IOCTLLOCK 0
#define RAY_DEBUG ( \
RAY_DBG_RECERR | \
/* RAY_DBG_SUBR | */ \
/* RAY_DBG_BOOTPARAM | */ \
RAY_DBG_STARTJOIN | \
/* RAY_DBG_CCS | */ \
RAY_DBG_IOCTL | \
/* RAY_DBG_MBUF | */ \
/* RAY_DBG_RX | */ \
/* RAY_DBG_CM | */ \
RAY_DBG_COM | \
RAY_DBG_STOP | \
/* RAY_DBG_CTL | */ \
/* RAY_DBG_MGT | */ \
/* RAY_DBG_TX | */ \
0 \
)
/*
* XXX build options - move to LINT
*/
#define RAY_NEED_CM_REMAPPING 1 /* Needed until pccard maps more than one memory area */
#define RAY_COM_TIMEOUT (hz/2) /* Timeout for CCS commands */
#define RAY_RESET_TIMEOUT (5*hz) /* Timeout for resetting the card */
#define RAY_TX_TIMEOUT (hz/2) /* Timeout for rescheduling TX */
/*
* XXX build options - move to LINT
*/
#ifndef RAY_DEBUG
#define RAY_DEBUG 0x0000
#endif /* RAY_DEBUG */
#include "ray.h"
#include "opt_inet.h"
#if NRAY > 0
#include <sys/param.h>
#include <sys/types.h>
#include <sys/cdefs.h>
#include <sys/conf.h>
#include <sys/errno.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/callout.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/systm.h>
#include <sys/sysctl.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_mib.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_var.h>
#include <netinet/if_ether.h>
#endif /* INET */
#include <net/bpf.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <machine/clock.h>
#include <machine/md_var.h>
#include <machine/bus_pio.h>
#include <machine/limits.h>
#include <dev/pccard/pccardvar.h>
#include "card_if.h"
#include <dev/ray/if_ieee80211.h>
#include <dev/ray/if_rayreg.h>
#include <dev/ray/if_raymib.h>
#include <dev/ray/if_raydbg.h>
#include <dev/ray/if_rayvar.h>
/*
* Prototyping
*/
static int ray_attach (device_t);
static int ray_ccs_alloc (struct ray_softc *sc, size_t *ccsp, char *wmesg);
static void ray_ccs_fill (struct ray_softc *sc, size_t ccs, u_int cmd);
static void ray_ccs_free (struct ray_softc *sc, size_t ccs);
static int ray_ccs_tx (struct ray_softc *sc, size_t *ccsp, size_t *bufpp);
static void ray_com_ecf (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_com_ecf_done (struct ray_softc *sc);
static void ray_com_ecf_timo (void *xsc);
static struct ray_comq_entry *
ray_com_init (struct ray_comq_entry *com, ray_comqfn_t function, int flags, char *mesg);
static struct ray_comq_entry *
ray_com_malloc (ray_comqfn_t function, int flags, char *mesg);
static void ray_com_runq (struct ray_softc *sc);
static int ray_com_runq_add (struct ray_softc *sc, struct ray_comq_entry *com[], int ncom, char *wmesg);
static void ray_com_runq_done (struct ray_softc *sc);
static int ray_detach (device_t);
static int ray_init_user (struct ray_softc *sc);
static void ray_init_assoc (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_init_assoc_done (struct ray_softc *sc, size_t ccs);
static void ray_init_download (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_init_download_done (struct ray_softc *sc, size_t ccs);
static void ray_init_download_v4 (struct ray_softc *sc);
static void ray_init_download_v5 (struct ray_softc *sc);
static void ray_init_sj (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_init_sj_done (struct ray_softc *sc, size_t ccs);
static void ray_intr (void *xsc);
static void ray_intr_ccs (struct ray_softc *sc, u_int8_t cmd, size_t ccs);
static void ray_intr_rcs (struct ray_softc *sc, u_int8_t cmd, size_t ccs);
static void ray_intr_updt_errcntrs (struct ray_softc *sc);
static int ray_ioctl (struct ifnet *ifp, u_long command, caddr_t data);
static int ray_ioctl_lock (struct ray_softc *sc);
static void ray_ioctl_unlock (struct ray_softc *sc);
static void ray_mcast (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_mcast_done (struct ray_softc *sc, size_t ccs);
static int ray_mcast_user (struct ray_softc *sc);
static int ray_probe (device_t);
static void ray_promisc (struct ray_softc *sc, struct ray_comq_entry *com);
static int ray_promisc_user (struct ray_softc *sc);
static void ray_repparams (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_repparams_done (struct ray_softc *sc, size_t ccs);
static int ray_repparams_user (struct ray_softc *sc, struct ray_param_req *pr);
static int ray_repstats_user (struct ray_softc *sc, struct ray_stats_req *sr);
static void ray_reset (struct ray_softc *sc);
static void ray_reset_timo (void *xsc);
static int ray_res_alloc_am (struct ray_softc *sc);
static int ray_res_alloc_cm (struct ray_softc *sc);
static int ray_res_alloc_irq (struct ray_softc *sc);
static void ray_res_release (struct ray_softc *sc);
static void ray_rx (struct ray_softc *sc, size_t rcs);
static void ray_rx_ctl (struct ray_softc *sc, struct mbuf *m0);
static void ray_rx_mgt (struct ray_softc *sc, struct mbuf *m0);
static void ray_rx_mgt_auth (struct ray_softc *sc, struct mbuf *m0);
static void ray_rx_update_cache (struct ray_softc *sc, u_int8_t *src, u_int8_t siglev, u_int8_t antenna);
static void ray_stop (struct ray_softc *sc, struct ray_comq_entry *com);
static int ray_stop_user (struct ray_softc *sc);
static void ray_tx (struct ifnet *ifp);
static void ray_tx_done (struct ray_softc *sc, size_t ccs);
static void ray_tx_timo (void *xsc);
static int ray_tx_send (struct ray_softc *sc, size_t ccs, u_int8_t pktlen, u_int8_t *dst);
static size_t ray_tx_wrhdr (struct ray_softc *sc, size_t bufp, u_int8_t type, u_int8_t fc1, u_int8_t *addr1, u_int8_t *addr2, u_int8_t *addr3);
static void ray_upparams (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_upparams_done (struct ray_softc *sc, size_t ccs);
static int ray_upparams_user (struct ray_softc *sc, struct ray_param_req *pr);
static void ray_watchdog (struct ifnet *ifp);
static u_int8_t ray_tx_best_antenna (struct ray_softc *sc, u_int8_t *dst);
#if RAY_DEBUG & RAY_DBG_COM
static void ray_com_ecf_check (struct ray_softc *sc, size_t ccs, char *mesg);
#endif /* RAY_DEBUG & RAY_DBG_COM */
#if RAY_DEBUG & RAY_DBG_MBUF
static void ray_dump_mbuf (struct ray_softc *sc, struct mbuf *m, char *s);
#endif /* RAY_DEBUG & RAY_DBG_MBUF */
#if RAY_NEED_CM_REMAPPING
static void ray_attr_mapam (struct ray_softc *sc);
static void ray_attr_mapcm (struct ray_softc *sc);
static u_int8_t ray_attr_read_1 (struct ray_softc *sc, off_t offset);
static void ray_attr_write_1 (struct ray_softc *sc, off_t offset, u_int8_t byte);
#endif /* RAY_NEED_CM_REMAPPING */
/*
* PC-Card (PCMCIA) driver definition
*/
static device_method_t ray_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ray_probe),
DEVMETHOD(device_attach, ray_attach),
DEVMETHOD(device_detach, ray_detach),
{ 0, 0 }
};
static driver_t ray_driver = {
"ray",
ray_methods,
sizeof(struct ray_softc)
};
static devclass_t ray_devclass;
DRIVER_MODULE(ray, pccard, ray_driver, ray_devclass, 0, 0);
/*
* Probe for the card by checking its startup results.
*
* Fixup any bugs/quirks for different firmware.
*/
static int
ray_probe(device_t dev)
{
struct ray_softc *sc = device_get_softc(dev);
struct ray_ecf_startup_v5 *ep = &sc->sc_ecf_startup;
int error;
sc->dev = dev;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
/*
* Read startup results from the card.
* Then return resouces to the pool.
*/
error = ray_res_alloc_cm(sc);
if (error)
return (error);
RAY_MAP_CM(sc);
SRAM_READ_REGION(sc, RAY_ECF_TO_HOST_BASE, ep,
sizeof(sc->sc_ecf_startup));
ray_res_release(sc);
/*
* Check the card is okay and work out what version we are using.
*/
if (ep->e_status != RAY_ECFS_CARD_OK) {
RAY_PRINTF(sc, "card failed self test 0x%b",
ep->e_status, RAY_ECFS_PRINTFB);
return (ENXIO);
}
if (sc->sc_version != RAY_ECFS_BUILD_4 &&
sc->sc_version != RAY_ECFS_BUILD_5) {
RAY_PRINTF(sc, "unsupported firmware version 0x%0x",
ep->e_fw_build_string);
return (ENXIO);
}
RAY_DPRINTF(sc, RAY_DBG_BOOTPARAM, "found a card");
sc->gone = 0;
/*
* Fixup tib size to be correct - on build 4 it is garbage
*/
if (sc->sc_version == RAY_ECFS_BUILD_4 && sc->sc_tibsize == 0x55)
sc->sc_tibsize = sizeof(struct ray_tx_tib);
return (0);
}
/*
* Attach the card into the kernel
*/
static int
ray_attach(device_t dev)
{
struct ray_softc *sc = device_get_softc(dev);
struct ray_ecf_startup_v5 *ep = &sc->sc_ecf_startup;
struct ifnet *ifp = &sc->arpcom.ac_if;
size_t ccs;
int i, error;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
if (sc->gone)
return (ENXIO);
/*
* Grab the resources I need
*/
#if (RAY_DBG_CM || RAY_DBG_BOOTPARAM)
{
u_long flags = 0xffff;
CARD_GET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_IOPORT,
0, &flags);
RAY_PRINTF(sc,
"ioport start 0x%0lx count 0x%0lx flags 0x%0lx",
bus_get_resource_start(dev, SYS_RES_IOPORT, 0),
bus_get_resource_count(dev, SYS_RES_IOPORT, 0),
flags);
CARD_GET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
0, &flags);
RAY_PRINTF(sc,
"memory start 0x%0lx count 0x%0lx flags 0x%0lx",
bus_get_resource_start(dev, SYS_RES_MEMORY, 0),
bus_get_resource_count(dev, SYS_RES_MEMORY, 0),
flags);
RAY_PRINTF(sc, "irq start 0x%0lx count 0x%0lx",
bus_get_resource_start(dev, SYS_RES_IRQ, 0),
bus_get_resource_count(dev, SYS_RES_IRQ, 0));
}
#endif /* (RAY_DBG_CM || RAY_DBG_BOOTPARAM) */
error = ray_res_alloc_cm(sc);
if (error)
return (error);
error = ray_res_alloc_am(sc);
if (error) {
ray_res_release(sc);
return (error);
}
error = ray_res_alloc_irq(sc);
if (error) {
ray_res_release(sc);
return (error);
}
/*
* Reset any pending interrupts
*/
RAY_HCS_CLEAR_INTR(sc);
/*
* Set the parameters that will survive stop/init and
* reset a few things on the card.
*
* Do not update these in ray_init_download's parameter setup
*/
RAY_MAP_CM(sc);
#if XXX
see the ray_init_download section for stuff to move
#endif
bzero(&sc->sc_d, sizeof(struct ray_nw_param));
bzero(&sc->sc_c, sizeof(struct ray_nw_param));
/* Set all ccs to be free */
bzero(sc->sc_ccsinuse, sizeof(sc->sc_ccsinuse));
ccs = RAY_CCS_ADDRESS(0);
for (i = 0; i < RAY_CCS_LAST; ccs += RAY_CCS_SIZE, i++)
RAY_CCS_FREE(sc, ccs);
/*
* Initialise the network interface structure
*/
if (!ifp->if_name) {
bcopy((char *)&ep->e_station_addr,
(char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
ifp->if_softc = sc;
ifp->if_name = "ray";
ifp->if_unit = device_get_unit(dev);
ifp->if_timer = 0;
#if XXX_MCAST
ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST);
#else
ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX);
#endif /* XXX_MCAST */
ifp->if_hdrlen = sizeof(struct ieee80211_header) +
sizeof(struct ether_header);
ifp->if_baudrate = 1000000; /* Is this baud or bps ;-) */
ifp->if_output = ether_output;
ifp->if_start = ray_tx;
ifp->if_ioctl = ray_ioctl;
ifp->if_watchdog = ray_watchdog;
ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
if_attach(ifp);
ether_ifattach(ifp);
}
/*
* Initialise the timers and driver
*/
#if XXX_IOCTLLOCK
sc->sc_ioctl_lock = 0;
sc->sc_ioctl_cnt = 0;
#endif /* XXX_IOCTLLOCK */
callout_handle_init(&sc->com_timerh);
callout_handle_init(&sc->reset_timerh);
callout_handle_init(&sc->tx_timerh);
TAILQ_INIT(&sc->sc_comq);
bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header));
#if XXX
at_shutdown(ray_shutdown, sc, SHUTDOWN_POST_SYNC);
#endif /* XXX */
/*
* Print out some useful information
*/
if (bootverbose || (RAY_DEBUG & RAY_DBG_BOOTPARAM)) {
RAY_PRINTF(sc, "start up results");
if (sc->sc_version == RAY_ECFS_BUILD_4)
printf(". Firmware version 4\n");
else
printf(". Firmware version 5\n");
printf(". Status 0x%b\n", ep->e_status, RAY_ECFS_PRINTFB);
printf(". Ether address %6D\n", ep->e_station_addr, ":");
if (sc->sc_version == RAY_ECFS_BUILD_4) {
printf(". Program checksum %0x\n", ep->e_resv0);
printf(". CIS checksum %0x\n", ep->e_rates[0]);
} else {
printf(". (reserved word) %0x\n", ep->e_resv0);
printf(". Supported rates %8D\n", ep->e_rates, ":");
}
printf(". Japan call sign %12D\n", ep->e_japan_callsign, ":");
if (sc->sc_version == RAY_ECFS_BUILD_5) {
printf(". Program checksum %0x\n", ep->e_prg_cksum);
printf(". CIS checksum %0x\n", ep->e_cis_cksum);
printf(". Firmware version %0x\n",
ep->e_fw_build_string);
printf(". Firmware revision %0x\n", ep->e_fw_build);
printf(". (reserved word) %0x\n", ep->e_fw_resv);
printf(". ASIC version %0x\n", ep->e_asic_version);
printf(". TIB size %0x\n", ep->e_tibsize);
}
}
return (0);
}
/*
* Detach the card
*
* This is usually called when the card is ejected, but
* can be caused by a modunload of a controller driver.
* The idea is to reset the driver's view of the device
* and ensure that any driver entry points such as
* read and write do not hang.
*/
static int
ray_detach(device_t dev)
{
struct ray_softc *sc = device_get_softc(dev);
struct ifnet *ifp = &sc->arpcom.ac_if;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STOP, "");
if (sc->gone)
return (0);
/*
* Clear out timers and sort out driver state
*/
untimeout(ray_com_ecf_timo, sc, sc->com_timerh);
untimeout(ray_reset_timo, sc, sc->reset_timerh);
untimeout(ray_tx_timo, sc, sc->tx_timerh);
sc->sc_havenet = 0;
/*
* Mark as not running
*/
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
/*
* Cleardown interface
*/
if_detach(ifp);
/*
* Mark card as gone and release resources
*/
sc->gone = 1;
ray_res_release(sc);
RAY_PRINTF(sc, "unloading complete");
return (0);
}
/*
* Network ioctl request.
*/
static int
ray_ioctl(register struct ifnet *ifp, u_long command, caddr_t data)
{
struct ray_softc *sc = ifp->if_softc;
struct ray_param_req pr;
struct ray_stats_req sr;
struct ifreq *ifr = (struct ifreq *)data;
struct ifaddr *ifa = (struct ifaddr *)data;
int s, error, error2;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_IOCTL, "");
RAY_MAP_CM(sc);
error = error2 = 0;
s = splimp();
#if XXX_IOCTLLOCK
error = ray_ioctl_lock(sc);
if (error)
goto cannotlock;
#endif /* XXX_IOCTLLOCK */
switch (command) {
case SIOCGIFADDR:
case SIOCSIFMTU:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "GIFADDR/SIFMTU");
error = ether_ioctl(ifp, command, data);
break;
case SIOCSIFADDR:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "SIFADDR");
ifp->if_flags |= IFF_UP;
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
arp_ifinit((struct arpcom *)ifp, ifa);
break;
#endif
}
/* FALLTHROUGH */
case SIOCSIFFLAGS:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "SIFFLAGS");
/*
* If the interface is marked up and stopped, then start
* it. If it is marked down and running, then stop it.
*
* Restarting the interface deals with promisc/allmulti,
* so only check them if we are already running.
*
*/
/* XXX
need some mechanism to allow me to differentiate init and promisc?
we could just not bail in promisc?
*/
if (ifp->if_flags & IFF_UP)
error = ray_init_user(sc);
else
error = ray_stop_user(sc);
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "ADDMULTI/DELMULTI");
error = ray_mcast_user(sc);
break;
case SIOCSRAYPARAM:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "SRAYPARAM");
if ((error = copyin(ifr->ifr_data, &pr, sizeof(pr))))
break;
error = ray_upparams_user(sc, &pr);
error2 = copyout(&pr, ifr->ifr_data, sizeof(pr));
error = error2 ? error2 : error;
break;
case SIOCGRAYPARAM:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "GRAYPARAM");
if ((error = copyin(ifr->ifr_data, &pr, sizeof(pr))))
break;
error = ray_repparams_user(sc, &pr);
error2 = copyout(&pr, ifr->ifr_data, sizeof(pr));
error = error2 ? error2 : error;
break;
case SIOCGRAYSTATS:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "GRAYSTATS");
error = ray_repstats_user(sc, &sr);
error2 = copyout(&sr, ifr->ifr_data, sizeof(sr));
error = error2 ? error2 : error;
break;
case SIOCGRAYSIGLEV:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "GRAYSIGLEV");
error = copyout(sc->sc_siglevs, ifr->ifr_data,
sizeof(sc->sc_siglevs));
break;
case SIOCGIFFLAGS:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "GIFFLAGS");
error = EINVAL;
break;
case SIOCGIFMETRIC:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "GIFMETRIC");
error = EINVAL;
break;
case SIOCGIFMTU:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "GIFMTU");
error = EINVAL;
break;
case SIOCGIFPHYS:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "GIFPYHS");
error = EINVAL;
break;
case SIOCSIFMEDIA:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "SIFMEDIA");
error = EINVAL;
break;
case SIOCGIFMEDIA:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "GIFMEDIA");
error = EINVAL;
break;
default:
error = EINVAL;
}
#if XXX_IOCTLLOCK
ray_ioctl_unlock(sc);
cannotlock:
#endif /* XXX_IOCTLLOCK */
splx(s);
return (error);
}
#if XXX_IOCTLLOCK
/*
* Lock routines for serialising ioctls
*/
static int
ray_ioctl_lock(struct ray_softc *sc)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_IOCTL, "");
if (sc->gone)
return (ENXIO);
/* XXX Just in case for KAME ipv6 - see awi.c */
if (curproc == NULL) {
if (sc->sc_ioctl_lock)
return (EWOULDBLOCK);
sc->sc_ioctl_lock = 1;
return (0);
}
while (sc->sc_busy) {
sc->sc_ioctl_cnt++;
error = tsleep(ray_ioctl_lock, PCATCH, "raylock", 0);
sc->sc_ioctl_cnt--;
if (error)
return (error);
if (sc->gone)
return (ENXIO);
}
sc->sc_ioctl_lock = 1;
return (0);
}
static void
ray_ioctl_unlock(struct ray_softc *sc)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_IOCTL, "");
sc->sc_ioctl_lock = 0;
wakeup(ray_ioctl_lock);
}
#endif /* XXX_IOCTLLOCK */
/*
* User land entry to network initialisation. Called by ray_ioctl
*
* We do a very small bit of house keeping before calling ray_init_download
* to do all the real work. We do it this way in case there are runq
* entries outstanding from earlier ioctls that modify the interface
* flags.
*
* ray_init_download fills the startup parameter structure out and
* sends it to the card.
*
* ray_init_sj tells the card to try and find an existing network or
* start a new one.
*
* ray_init_sj_done checks a few parameters and we are ready to process packets
*
* the promiscuous and multi-cast modes are then set
*
* Returns values are either 0 for success, a varity of resource allocation
* failures or errors in the command sent to the card.
*/
static int
ray_init_user(struct ray_softc *sc)
{
struct ray_comq_entry *com[5];
int i, ncom, error;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_MAP_CM(sc);
if (sc->gone)
return (ENXIO);
/*
* Create the following runq entries:
*
* download - download the network to the card
* sj - find or start a BSS
* assoc - associate with a ESSID if needed
* promisc - force promiscuous mode update
* mcast - force multicast list
*/
ncom = 0;
com[ncom++] = RAY_COM_MALLOC(ray_init_download, 0);
com[ncom++] = RAY_COM_MALLOC(ray_init_sj, 0);
#if XXX_ASSOC
if (sc->sc_d.np_net_type == RAY_MIB_NET_TYPE_INFRA)
com[ncom++] = RAY_COM_MALLOC(ray_init_assoc, 0);
#endif /* XXX_ASSOC */
com[ncom++] = RAY_COM_MALLOC(ray_promisc, 0);
#if XXX_MCAST
com[ncom++] = RAY_COM_MALLOC(ray_mcast, 0);
#endif /* XXX_MCAST */
error = ray_com_runq_add(sc, com, ncom, "rayinit");
/* XXX no real error processing from anything yet! */
for (i = 0; i < ncom; i++) {
if (com[i]->c_flags & RAY_COM_FCOMPLETED) {
} else {
ray_ccs_free(sc, com[i]->c_ccs);
TAILQ_REMOVE(&sc->sc_comq, com[i], c_chain);
}
FREE(com[i], M_RAYCOM);
}
/*
runq_arr may fail:
if sleeping in ccs_alloc with eintr/erestart/enxio/enodev
erestart try again from the top
XXX do not malloc more comqs
XXX ccs allocation hard
eintr clean up and return
enxio clean up and return
if sleeping in runq_arr itself with eintr/erestart/enxio/enodev
erestart try again from the top
XXX do not malloc more comqs
XXX ccs allocation hard
XXX reinsert comqs at head of list
eintr clean up and return
enxio clean up and return
only difficult one is init sequence that should be aborted in download
as commands complete before next one starts then
init
init is safe
longer term need to attach a desired nw params to the runq entry
*/
return (error);
}
/*
* Runq entry for resetting driver and downloading start up structures to card
*/
static void
ray_init_download(struct ray_softc *sc, struct ray_comq_entry *com)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_MAP_CM(sc);
/*
* If card already running we don't need to download.
*/
if (ifp->if_flags & IFF_RUNNING) {
ray_com_runq_done(sc);
return;
}
/*
* Reset instance variables
*
* The first set are network parameters that are read back when
* the card starts or joins the network.
*
* The second set are network parameters that are downloaded to
* the card.
*
* The third set are driver parameters.
*
* All of the variables in these sets can be updated by the
* card or ioctls.
*/
#if XXX
see the ray_attach section for stuff to move
#endif
sc->sc_d.np_upd_param = 0;
bzero(sc->sc_d.np_bss_id, ETHER_ADDR_LEN);
sc->sc_d.np_inited = 0;
sc->sc_d.np_def_txrate = RAY_MIB_BASIC_RATE_SET_DEFAULT;
sc->sc_d.np_encrypt = 0;
sc->sc_d.np_ap_status = RAY_MIB_AP_STATUS_DEFAULT;
sc->sc_d.np_net_type = RAY_MIB_NET_TYPE_DEFAULT;
bzero(sc->sc_d.np_ssid, IEEE80211_NWID_LEN);
strncpy(sc->sc_d.np_ssid, RAY_MIB_SSID_DEFAULT, IEEE80211_NWID_LEN);
sc->sc_d.np_priv_start = RAY_MIB_PRIVACY_MUST_START_DEFAULT;
sc->sc_d.np_priv_join = RAY_MIB_PRIVACY_CAN_JOIN_DEFAULT;
sc->sc_promisc = !!(ifp->if_flags & (IFF_PROMISC|IFF_ALLMULTI));
sc->sc_havenet = 0;
sc->framing = SC_FRAMING_WEBGEAR;
sc->sc_rxoverflow = 0;
sc->sc_rxcksum = 0;
sc->sc_rxhcksum = 0;
sc->sc_rxnoise = 0;
/*
* Download the right firmware defaults
*/
if (sc->sc_version == RAY_ECFS_BUILD_4)
ray_init_download_v4(sc);
else
ray_init_download_v5(sc);
/*
* Kick the card
*/
ray_ccs_fill(sc, com->c_ccs, RAY_CMD_DOWNLOAD_PARAMS);
ray_com_ecf(sc, com);
}
#define PUT2(p, v) \
do { (p)[0] = ((v >> 8) & 0xff); (p)[1] = (v & 0xff); } while(0)
/*
* Firmware version 4 defaults - see if_raymib.h for details
*/
static void
ray_init_download_v4(struct ray_softc *sc)
{
struct ray_mib_4 ray_mib_4_default;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_MAP_CM(sc);
#define MIB4(m) ray_mib_4_default.##m
MIB4(mib_net_type) = sc->sc_d.np_net_type;
MIB4(mib_ap_status) = sc->sc_d.np_ap_status;
bcopy(sc->sc_d.np_ssid, MIB4(mib_ssid), IEEE80211_NWID_LEN);
MIB4(mib_scan_mode) = RAY_MIB_SCAN_MODE_DEFAULT;
MIB4(mib_apm_mode) = RAY_MIB_APM_MODE_DEFAULT;
bcopy(sc->sc_station_addr, MIB4(mib_mac_addr), ETHER_ADDR_LEN);
PUT2(MIB4(mib_frag_thresh), RAY_MIB_FRAG_THRESH_DEFAULT);
PUT2(MIB4(mib_dwell_time), RAY_MIB_DWELL_TIME_V4);
PUT2(MIB4(mib_beacon_period), RAY_MIB_BEACON_PERIOD_V4);
MIB4(mib_dtim_interval) = RAY_MIB_DTIM_INTERVAL_DEFAULT;
MIB4(mib_max_retry) = RAY_MIB_MAX_RETRY_DEFAULT;
MIB4(mib_ack_timo) = RAY_MIB_ACK_TIMO_DEFAULT;
MIB4(mib_sifs) = RAY_MIB_SIFS_DEFAULT;
MIB4(mib_difs) = RAY_MIB_DIFS_DEFAULT;
MIB4(mib_pifs) = RAY_MIB_PIFS_V4;
PUT2(MIB4(mib_rts_thresh), RAY_MIB_RTS_THRESH_DEFAULT);
PUT2(MIB4(mib_scan_dwell), RAY_MIB_SCAN_DWELL_V4);
PUT2(MIB4(mib_scan_max_dwell), RAY_MIB_SCAN_MAX_DWELL_V4);
MIB4(mib_assoc_timo) = RAY_MIB_ASSOC_TIMO_DEFAULT;
MIB4(mib_adhoc_scan_cycle) = RAY_MIB_ADHOC_SCAN_CYCLE_DEFAULT;
MIB4(mib_infra_scan_cycle) = RAY_MIB_INFRA_SCAN_CYCLE_DEFAULT;
MIB4(mib_infra_super_scan_cycle)
= RAY_MIB_INFRA_SUPER_SCAN_CYCLE_DEFAULT;
MIB4(mib_promisc) = sc->sc_promisc;
PUT2(MIB4(mib_uniq_word), RAY_MIB_UNIQ_WORD_DEFAULT);
MIB4(mib_slot_time) = RAY_MIB_SLOT_TIME_V4;
MIB4(mib_roam_low_snr_thresh) = RAY_MIB_ROAM_LOW_SNR_THRESH_DEFAULT;
MIB4(mib_low_snr_count) = RAY_MIB_LOW_SNR_COUNT_DEFAULT;
MIB4(mib_infra_missed_beacon_count)
= RAY_MIB_INFRA_MISSED_BEACON_COUNT_DEFAULT;
MIB4(mib_adhoc_missed_beacon_count)
= RAY_MIB_ADHOC_MISSED_BEACON_COUNT_DEFAULT;
MIB4(mib_country_code) = RAY_MIB_COUNTRY_CODE_DEFAULT;
MIB4(mib_hop_seq) = RAY_MIB_HOP_SEQ_DEFAULT;
MIB4(mib_hop_seq_len) = RAY_MIB_HOP_SEQ_LEN_V4;
MIB4(mib_cw_max) = RAY_MIB_CW_MAX_V4;
MIB4(mib_cw_min) = RAY_MIB_CW_MIN_V4;
MIB4(mib_noise_filter_gain) = RAY_MIB_NOISE_FILTER_GAIN_DEFAULT;
MIB4(mib_noise_limit_offset) = RAY_MIB_NOISE_LIMIT_OFFSET_DEFAULT;
MIB4(mib_rssi_thresh_offset) = RAY_MIB_RSSI_THRESH_OFFSET_DEFAULT;
MIB4(mib_busy_thresh_offset) = RAY_MIB_BUSY_THRESH_OFFSET_DEFAULT;
MIB4(mib_sync_thresh) = RAY_MIB_SYNC_THRESH_DEFAULT;
MIB4(mib_test_mode) = RAY_MIB_TEST_MODE_DEFAULT;
MIB4(mib_test_min_chan) = RAY_MIB_TEST_MIN_CHAN_DEFAULT;
MIB4(mib_test_max_chan) = RAY_MIB_TEST_MAX_CHAN_DEFAULT;
#undef MIB4
SRAM_WRITE_REGION(sc, RAY_HOST_TO_ECF_BASE,
&ray_mib_4_default, sizeof(ray_mib_4_default));
}
/*
* Firmware version 5 defaults - see if_raymib.h for details
*/
static void
ray_init_download_v5(struct ray_softc *sc)
{
struct ray_mib_5 ray_mib_5_default;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_MAP_CM(sc);
#define MIB5(m) ray_mib_5_default.##m
MIB5(mib_net_type) = sc->sc_d.np_net_type;
MIB5(mib_ap_status) = sc->sc_d.np_ap_status;
bcopy(sc->sc_d.np_ssid, MIB5(mib_ssid), IEEE80211_NWID_LEN);
MIB5(mib_scan_mode) = RAY_MIB_SCAN_MODE_DEFAULT;
MIB5(mib_apm_mode) = RAY_MIB_APM_MODE_DEFAULT;
bcopy(sc->sc_station_addr, MIB5(mib_mac_addr), ETHER_ADDR_LEN);
PUT2(MIB5(mib_frag_thresh), RAY_MIB_FRAG_THRESH_DEFAULT);
PUT2(MIB5(mib_dwell_time), RAY_MIB_DWELL_TIME_V5);
PUT2(MIB5(mib_beacon_period), RAY_MIB_BEACON_PERIOD_V5);
MIB5(mib_dtim_interval) = RAY_MIB_DTIM_INTERVAL_DEFAULT;
MIB5(mib_max_retry) = RAY_MIB_MAX_RETRY_DEFAULT;
MIB5(mib_ack_timo) = RAY_MIB_ACK_TIMO_DEFAULT;
MIB5(mib_sifs) = RAY_MIB_SIFS_DEFAULT;
MIB5(mib_difs) = RAY_MIB_DIFS_DEFAULT;
MIB5(mib_pifs) = RAY_MIB_PIFS_V5;
PUT2(MIB5(mib_rts_thresh), RAY_MIB_RTS_THRESH_DEFAULT);
PUT2(MIB5(mib_scan_dwell), RAY_MIB_SCAN_DWELL_V5);
PUT2(MIB5(mib_scan_max_dwell), RAY_MIB_SCAN_MAX_DWELL_V5);
MIB5(mib_assoc_timo) = RAY_MIB_ASSOC_TIMO_DEFAULT;
MIB5(mib_adhoc_scan_cycle) = RAY_MIB_ADHOC_SCAN_CYCLE_DEFAULT;
MIB5(mib_infra_scan_cycle) = RAY_MIB_INFRA_SCAN_CYCLE_DEFAULT;
MIB5(mib_infra_super_scan_cycle)
= RAY_MIB_INFRA_SUPER_SCAN_CYCLE_DEFAULT;
MIB5(mib_promisc) = sc->sc_promisc;
PUT2(MIB5(mib_uniq_word), RAY_MIB_UNIQ_WORD_DEFAULT);
MIB5(mib_slot_time) = RAY_MIB_SLOT_TIME_V5;
MIB5(mib_roam_low_snr_thresh) = RAY_MIB_ROAM_LOW_SNR_THRESH_DEFAULT;
MIB5(mib_low_snr_count) = RAY_MIB_LOW_SNR_COUNT_DEFAULT;
MIB5(mib_infra_missed_beacon_count)
= RAY_MIB_INFRA_MISSED_BEACON_COUNT_DEFAULT;
MIB5(mib_adhoc_missed_beacon_count)
= RAY_MIB_ADHOC_MISSED_BEACON_COUNT_DEFAULT;
MIB5(mib_country_code) = RAY_MIB_COUNTRY_CODE_DEFAULT;
MIB5(mib_hop_seq) = RAY_MIB_HOP_SEQ_DEFAULT;
MIB5(mib_hop_seq_len) = RAY_MIB_HOP_SEQ_LEN_V5;
PUT2(MIB5(mib_cw_max), RAY_MIB_CW_MAX_V5);
PUT2(MIB5(mib_cw_min), RAY_MIB_CW_MIN_V5);
MIB5(mib_noise_filter_gain) = RAY_MIB_NOISE_FILTER_GAIN_DEFAULT;
MIB5(mib_noise_limit_offset) = RAY_MIB_NOISE_LIMIT_OFFSET_DEFAULT;
MIB5(mib_rssi_thresh_offset) = RAY_MIB_RSSI_THRESH_OFFSET_DEFAULT;
MIB5(mib_busy_thresh_offset) = RAY_MIB_BUSY_THRESH_OFFSET_DEFAULT;
MIB5(mib_sync_thresh) = RAY_MIB_SYNC_THRESH_DEFAULT;
MIB5(mib_test_mode) = RAY_MIB_TEST_MODE_DEFAULT;
MIB5(mib_test_min_chan) = RAY_MIB_TEST_MIN_CHAN_DEFAULT;
MIB5(mib_test_max_chan) = RAY_MIB_TEST_MAX_CHAN_DEFAULT;
MIB5(mib_allow_probe_resp) = RAY_MIB_ALLOW_PROBE_RESP_DEFAULT;
MIB5(mib_privacy_must_start) = sc->sc_d.np_priv_start;
MIB5(mib_privacy_can_join) = sc->sc_d.np_priv_join;
MIB5(mib_basic_rate_set[0]) = sc->sc_d.np_def_txrate;
#undef MIB5
SRAM_WRITE_REGION(sc, RAY_HOST_TO_ECF_BASE,
&ray_mib_5_default, sizeof(ray_mib_5_default));
}
#undef PUT2
/*
* Download completion routine
*/
static void
ray_init_download_done(struct ray_softc *sc, size_t ccs)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_COM_CHECK(sc, ccs);
/*
* Fake the current network parameter settings so start_join_net
* will not bother updating them to the card (we would need to
* zero these anyway, so we might as well copy).
*/
sc->sc_c.np_net_type = sc->sc_d.np_net_type;
bcopy(sc->sc_d.np_ssid, sc->sc_c.np_ssid, IEEE80211_NWID_LEN);
ray_com_ecf_done(sc);
}
/*
* Runq entry to starting or joining a network
*/
static void
ray_init_sj(struct ray_softc *sc, struct ray_comq_entry *com)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
struct ray_net_params np;
int update;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_MAP_CM(sc);
/*
* If card already running we don't need to start the n/w.
*
* XXX When we cope with errors and re-call this routine we
* XXX need better checking
*/
if (ifp->if_flags & IFF_RUNNING) {
ray_com_runq_done(sc);
return;
}
sc->sc_havenet = 0;
if (sc->sc_d.np_net_type == RAY_MIB_NET_TYPE_ADHOC)
ray_ccs_fill(sc, com->c_ccs, RAY_CMD_START_NET);
else
ray_ccs_fill(sc, com->c_ccs, RAY_CMD_JOIN_NET);
update = 0;
if (sc->sc_c.np_net_type != sc->sc_d.np_net_type)
update++;
if (bcmp(sc->sc_c.np_ssid, sc->sc_d.np_ssid, IEEE80211_NWID_LEN))
update++;
if (sc->sc_c.np_priv_join != sc->sc_d.np_priv_join)
update++;
if (sc->sc_c.np_priv_start != sc->sc_d.np_priv_start)
update++;
RAY_DPRINTF(sc, RAY_DBG_STARTJOIN,
"%s updating nw params", update?"is":"not");
if (update) {
bzero(&np, sizeof(np));
np.p_net_type = sc->sc_d.np_net_type;
bcopy(sc->sc_d.np_ssid, np.p_ssid, IEEE80211_NWID_LEN);
np.p_privacy_must_start = sc->sc_d.np_priv_start;
np.p_privacy_can_join = sc->sc_d.np_priv_join;
SRAM_WRITE_REGION(sc, RAY_HOST_TO_ECF_BASE, &np, sizeof(np));
SRAM_WRITE_FIELD_1(sc, com->c_ccs, ray_cmd_net, c_upd_param, 1);
} else
SRAM_WRITE_FIELD_1(sc, com->c_ccs, ray_cmd_net, c_upd_param, 0);
/*
* Kick the card
*/
ray_com_ecf(sc, com);
}
/*
* Complete start command or intermediate step in assoc command
*/
static void
ray_init_sj_done(struct ray_softc *sc, size_t ccs)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_MAP_CM(sc);
RAY_COM_CHECK(sc, ccs);
/*
* Read back network parameters that the ECF sets
*/
SRAM_READ_REGION(sc, ccs, &sc->sc_c.p_1, sizeof(struct ray_cmd_net));
/* adjust values for buggy build 4 */
if (sc->sc_c.np_def_txrate == 0x55)
sc->sc_c.np_def_txrate = sc->sc_d.np_def_txrate;
if (sc->sc_c.np_encrypt == 0x55)
sc->sc_c.np_encrypt = sc->sc_d.np_encrypt;
/*
* Update our local state if we updated the network parameters
* when the START_NET or JOIN_NET was issued.
*/
if (sc->sc_c.np_upd_param) {
RAY_DPRINTF(sc, RAY_DBG_STARTJOIN, "updated parameters");
SRAM_READ_REGION(sc, RAY_HOST_TO_ECF_BASE,
&sc->sc_c.p_2, sizeof(struct ray_net_params));
}
/*
* Hurrah! The network is now active.
*
* Clearing IFF_OACTIVE will ensure that the system will send us
* packets. Just before we return from the interrupt context
* we check to see if packets have been queued.
*/
if (SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_cmd) == RAY_CMD_START_NET) {
sc->sc_havenet = 1;
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
}
ray_com_ecf_done(sc);
}
/*
* Runq entry to starting an association with an access point
*/
static void
ray_init_assoc(struct ray_softc *sc, struct ray_comq_entry *com)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_MAP_CM(sc);
/*
* If card already running we don't need to associate.
*
* XXX When we cope with errors and re-call this routine we
* XXX need better checking
*/
if (ifp->if_flags & IFF_RUNNING) {
ray_com_runq_done(sc);
return;
}
/*
* Kick the card
*/
ray_ccs_fill(sc, com->c_ccs, RAY_CMD_START_ASSOC);
ray_com_ecf(sc, com);
}
/*
* Complete association
*/
static void
ray_init_assoc_done(struct ray_softc *sc, size_t ccs)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_COM_CHECK(sc, ccs);
RAY_MAP_CM(sc);
/*
* Hurrah! The network is now active.
*
* Clearing IFF_OACTIVE will ensure that the system will send us
* packets. Just before we return from the interrupt context
* we check to see if packets have been queued.
*/
sc->sc_havenet = 1;
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
ray_com_ecf_done(sc);
}
/*
* Network stop.
*
* Inhibit card - if we can't prevent reception then do not worry;
* stopping a NIC only guarantees no TX.
*
* The change to the interface flags is done via the runq so that any
* existing commands can execute normally.
*/
static int
ray_stop_user(struct ray_softc *sc)
{
struct ray_comq_entry *com[1];
int error;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STOP, "");
RAY_MAP_CM(sc);
if (sc->gone)
return (ENXIO);
/*
* Schedule the real stop routine
*/
com[0] = RAY_COM_MALLOC(ray_stop, 0);
error = ray_com_runq_add(sc, com, 1, "raystop");
/* XXX no real error processing from anything yet! */
if (error)
RAY_PRINTF(sc, "got error from ray_stop 0x%x", error);
FREE(com[0], M_RAYCOM);
return (error);
}
/*
* Runq entry for stopping the interface activity
*/
static void
ray_stop(struct ray_softc *sc, struct ray_comq_entry *com)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STOP, "");
/*
* Mark as not running
*/
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
ifp->if_timer = 0;
/* XXX Drain output queue (don't bother for detach) */
ray_com_runq_done(sc);
}
/*
* Reset the card
*
* I'm using the soft reset command in the COR register. I'm not sure
* if the sequence is right but it does seem to do the right thing. A
* nano second after reset is written the flashing light goes out, and
* a few seconds after the default is written the main card light goes
* out. We wait a while and then re-init the card.
*/
static void
ray_reset(struct ray_softc *sc)
{
#if XXX_RESET
struct ifnet *ifp = &sc->arpcom.ac_if;
#endif /* XXX_RESET */
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
#if XXX_RESET
if (ifp->if_flags & IFF_RUNNING)
ray_stop(sc);
RAY_PRINTF(sc, "resetting ECF");
ATTR_WRITE_1(sc, RAY_COR, RAY_COR_RESET);
ATTR_WRITE_1(sc, RAY_COR, RAY_COR_DEFAULT);
sc->reset_timerh = timeout(ray_reset_timo, sc, RAY_RESET_TIMEOUT);
#else
RAY_PRINTF(sc, "skip reset card");
#endif /* XXX_RESET */
}
/*
* Finishing resetting and restarting the card
*/
static void
ray_reset_timo(void *xsc)
{
struct ray_softc *sc = (struct ray_softc *)xsc;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
if (!RAY_ECF_READY(sc)) {
RAY_DPRINTF(sc, RAY_DBG_RECERR, "ECF busy, re-scheduling self");
sc->reset_timerh = timeout(ray_reset_timo, sc, RAY_RESET_TIMEOUT);
return;
}
RAY_HCS_CLEAR_INTR(sc);
RAY_PRINTF(sc, "XXX need to restart ECF but not in sleepable context");
RAY_PRINTF(sc, "XXX the user routines must restart as required");
}
static void
ray_watchdog(struct ifnet *ifp)
{
struct ray_softc *sc = ifp->if_softc;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
if (sc->gone)
return;
RAY_PRINTF(sc, "watchdog timeout");
/* XXX may need to have remedial action here
for example
ray_reset
ray_stop
...
ray_init
do we only use on TX?
if so then we should clear OACTIVE etc.
*/
}
/*
* Transmit packet handling
*/
/*
* Send a packet.
*
* We make two assumptions here:
* 1) That the current priority is set to splimp _before_ this code
* is called *and* is returned to the appropriate priority after
* return
* 2) That the IFF_OACTIVE flag is checked before this code is called
* (i.e. that the output part of the interface is idle)
*
* A simple one packet at a time TX routine is used - we don't bother
* chaining TX buffers. Performance is sufficient to max out the
* wireless link on a P75. Earlier versions of this used to set
* OACTIVE to add an extra layer of locking. It isn't really needed.
*
* Removing the OACTIVE gives much better performance. Here we
* have this driver on a Libretto, the old driver (OACTIVE)
* on a K6-233 and the Windows driver on a P100. FTPing 2048k
* of zeros.
*
* Nonname box old+FreeBSD-3.4 (K6-233MHz) to
* Libretto 50CT new+FreeBSD-3.1 (75MHz Pentium) 110.77kB/s
* AST J30 Windows 95A (100MHz Pentium) 109.40kB/s
*
* AST J30 Windows 95A (100MHz Pentium) to
* Libretto 50CT new+FreeBSD-3.1 (75MHz Pentium) 167.37kB/s
* Nonname box FreeBSD-3.4 (233MHz AMD K6) 161.82kB/s
*
* Libretto 50CT new+FreeBSD-3.1 (75MHz Pentium) to
* AST J30 Windows 95A (100MHz Pentium) 167.37kB/s
* Nonname box FreeBSD-3.4 (233MHz AMD K6) 161.38kB/s
*
* Given that 160kB/s is saturating the 2Mb/s wireless link we
* are about there.
*
* There is a little test in the code to see how many packets
* could be chained together. For the FTP test this rarely showed
* any and when it did, only two packets were on the queue.
*
* So, in short I'm happy that the added complexity of chaining TX
* packets together isn't worth it for my machines.
*
* Flow is
* get a ccs
* build the packet
* interrupt the card to send the packet
* return
*
* wait for interrupt telling us the packet has been sent
* get called by the interrupt routine if any packets left
*/
static void
ray_tx(struct ifnet *ifp)
{
struct ray_softc *sc = ifp->if_softc;
struct mbuf *m0, *m;
struct ether_header *eh;
size_t ccs, bufp;
int pktlen, len;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_TX, "");
RAY_MAP_CM(sc);
/*
* Some simple checks first - some are overkill
*/
if (sc->gone)
return;
if (!(ifp->if_flags & IFF_RUNNING)) {
RAY_PRINTF(sc, "not running");
return;
}
if (!sc->sc_havenet) {
RAY_PRINTF(sc, "no network");
return;
}
if (!RAY_ECF_READY(sc)) {
/* Can't assume that the ECF is busy because of this driver */
RAY_DPRINTF(sc, RAY_DBG_RECERR, "ECF busy, re-scheduling self");
sc->tx_timerh = timeout(ray_tx_timo, sc, RAY_TX_TIMEOUT);
return;
} else
untimeout(ray_tx_timo, sc, sc->tx_timerh);
/*
* We find a ccs before we process the mbuf so that we are sure it
* is worthwhile processing the packet. All errors in the mbuf
* processing are either errors in the mbuf or gross configuration
* errors and the packet wouldn't get through anyway.
*/
if (ray_ccs_tx(sc, &ccs, &bufp)) {
ifp->if_flags |= IFF_OACTIVE;
return;
}
/*
* Get the mbuf and process it - we have to remember to free the
* ccs if there are any errors
*/
#if XXX_IFQ_PEEK
if (ifp->if_snd.ifq_len > 1)
RAY_PRINTF(sc, "ifq_len %d", ifp->if_snd.ifq_len);
#endif /* XXX_IFQ_PEEK */
IF_DEQUEUE(&ifp->if_snd, m0);
if (m0 == NULL) {
RAY_CCS_FREE(sc, ccs);
return;
}
eh = mtod(m0, struct ether_header *);
for (pktlen = 0, m = m0; m != NULL; m = m->m_next) {
pktlen += m->m_len;
}
if (pktlen > ETHER_MAX_LEN - ETHER_CRC_LEN) {
RAY_DPRINTF(sc, RAY_DBG_RECERR, "mbuf too long %d", pktlen);
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
m_freem(m0);
return;
}
/* XXX
* I would much prefer to have the complete 802.11 packet dropped to
* the bpf tap and then have a user land program parse the headers
* as needed. This way, tcpdump -w can be used to grab the raw data. If
* needed the 802.11 aware program can "translate" the .11 to ethernet
* for tcpdump -r.
*
* XXX see /sys/dev/awi/awi.c:AWI_BPF_NORM stuff
*/
if (ifp->if_bpf)
bpf_mtap(ifp, m0);
/*
* Write the header according to network type etc.
*/
if (sc->sc_c.np_net_type == RAY_MIB_NET_TYPE_ADHOC)
bufp = ray_tx_wrhdr(sc, bufp,
IEEE80211_FC0_TYPE_DATA,
IEEE80211_FC1_STA_TO_STA,
eh->ether_dhost,
eh->ether_shost,
sc->sc_c.np_bss_id);
else
if (sc->sc_c.np_ap_status == RAY_MIB_AP_STATUS_TERMINAL)
bufp = ray_tx_wrhdr(sc, bufp,
IEEE80211_FC0_TYPE_DATA,
IEEE80211_FC1_STA_TO_AP,
sc->sc_c.np_bss_id,
eh->ether_shost,
eh->ether_dhost);
else
RAY_PANIC(sc, "can't be an AP yet"); /* XXX_ACTING_AP */
/*
* Translation - capability as described earlier
*
* Remove/modify/addto the 802.3 and 802.2 headers as needed.
*
* We've pulled up the mbuf for you.
*
*/
if (m0->m_len < sizeof(struct ether_header))
m = m_pullup(m, sizeof(struct ether_header));
if (m0 == NULL) {
RAY_DPRINTF(sc, RAY_DBG_RECERR, "could not pullup ether");
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
return;
}
switch (sc->framing) {
case SC_FRAMING_WEBGEAR:
/* Nice and easy - nothing! (just add an 802.11 header) */
break;
default:
RAY_PRINTF(sc, "unknown framing type %d", sc->framing);
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
m_freem(m0);
return;
}
if (m0 == NULL) {
RAY_DPRINTF(sc, RAY_DBG_RECERR, "could not translate mbuf");
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
return;
}
/*
* Copy the mbuf to the buffer in common memory
*
* We panic and don't bother wrapping as ethernet packets are 1518
* bytes, we checked the mbuf earlier, and our TX buffers are 2048
* bytes. We don't have 530 bytes of headers etc. so something
* must be fubar.
*/
pktlen = sizeof(struct ieee80211_header);
for (m = m0; m != NULL; m = m->m_next) {
pktlen += m->m_len;
if ((len = m->m_len) == 0)
continue;
if ((bufp + len) < RAY_TX_END)
SRAM_WRITE_REGION(sc, bufp, mtod(m, u_int8_t *), len);
else
RAY_PANIC(sc, "tx buffer overflow");
bufp += len;
}
RAY_MBUF_DUMP(sc, RAY_DBG_TX, m0, "ray_tx");
/*
* Send it off
*/
if (ray_tx_send(sc, ccs, pktlen, eh->ether_dhost))
ifp->if_oerrors++;
else
ifp->if_opackets++;
m_freem(m0);
}
/*
* Start timeout routine.
*
* Used when card was busy but we needed to send a packet.
*/
static void
ray_tx_timo(void *xsc)
{
struct ray_softc *sc = (struct ray_softc *)xsc;
struct ifnet *ifp = &sc->arpcom.ac_if;
int s;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
if (!(ifp->if_flags & IFF_OACTIVE) && (ifp->if_snd.ifq_head != NULL)) {
s = splimp();
ray_tx(ifp);
splx(s);
}
}
/*
* Write an 802.11 header into the Tx buffer space and return the
* adjusted buffer pointer.
*/
static size_t
ray_tx_wrhdr(struct ray_softc *sc, size_t bufp, u_int8_t type, u_int8_t fc1, u_int8_t *addr1, u_int8_t *addr2, u_int8_t *addr3)
{
struct ieee80211_header header;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_TX, "");
RAY_MAP_CM(sc);
bzero(&header, sizeof(struct ieee80211_header));
header.i_fc[0] = (IEEE80211_FC0_VERSION_0 | type);
header.i_fc[1] = fc1;
bcopy(addr1, header.i_addr1, ETHER_ADDR_LEN);
bcopy(addr2, header.i_addr2, ETHER_ADDR_LEN);
bcopy(addr3, header.i_addr3, ETHER_ADDR_LEN);
SRAM_WRITE_REGION(sc, bufp, (u_int8_t *)&header,
sizeof(struct ieee80211_header));
return (bufp + sizeof(struct ieee80211_header));
}
/*
* Fill in a few loose ends and kick the card to send the packet
*
* Returns 0 on success, 1 on failure
*/
static int
ray_tx_send(struct ray_softc *sc, size_t ccs, u_int8_t pktlen, u_int8_t *dst)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_TX, "");
RAY_MAP_CM(sc);
if (!RAY_ECF_READY(sc)) {
/*
* XXX From NetBSD code:
*
* XXX If this can really happen perhaps we need to save
* XXX the chain and use it later. I think this might
* XXX be a confused state though because we check above
* XXX and don't issue any commands between.
*/
RAY_PRINTF(sc, "ECF busy, dropping packet");
RAY_CCS_FREE(sc, ccs);
return (1);
}
SRAM_WRITE_FIELD_2(sc, ccs, ray_cmd_tx, c_len, pktlen);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_antenna,
ray_tx_best_antenna(sc, dst));
SRAM_WRITE_1(sc, RAY_SCB_CCSI, RAY_CCS_INDEX(ccs));
RAY_ECF_START_CMD(sc);
return (0);
}
/*
* Determine best antenna to use from rx level and antenna cache
*/
static u_int8_t
ray_tx_best_antenna(struct ray_softc *sc, u_int8_t *dst)
{
struct ray_siglev *sl;
int i;
u_int8_t antenna;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_TX, "");
RAY_MAP_CM(sc);
if (sc->sc_version == RAY_ECFS_BUILD_4)
return (0);
/* try to find host */
for (i = 0; i < RAY_NSIGLEVRECS; i++) {
sl = &sc->sc_siglevs[i];
if (bcmp(sl->rsl_host, dst, ETHER_ADDR_LEN) == 0)
goto found;
}
/* not found, return default setting */
return (0);
found:
/* This is a simple thresholding scheme which takes the mean
* of the best antenna history. This is okay but as it is a
* filter, it adds a bit of lag in situations where the
* best antenna swaps from one side to the other slowly. Don't know
* how likely this is given the horrible fading though.
*/
antenna = 0;
for (i = 0; i < RAY_NANTENNA; i++) {
antenna += sl->rsl_antennas[i];
}
return (antenna > (RAY_NANTENNA >> 1));
}
/*
* Transmit now complete so clear ccs and network flags.
*/
static void
ray_tx_done(struct ray_softc *sc, size_t ccs)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
char *ss[] = RAY_CCS_STATUS_STRINGS;
u_int8_t status;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_TX, "");
RAY_MAP_CM(sc);
status = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_status);
if (status != RAY_CCS_STATUS_COMPLETE) {
RAY_DPRINTF(sc, RAY_DBG_RECERR,
"tx completed but status is %s", ss[status]);
ifp->if_oerrors++;
}
RAY_CCS_FREE(sc, ccs);
ifp->if_timer = 0;
if (ifp->if_flags & IFF_OACTIVE)
ifp->if_flags &= ~IFF_OACTIVE;
}
/*
* Receiver packet handling
*/
/*
* Receive a packet from the card
*/
static void
ray_rx(struct ray_softc *sc, size_t rcs)
{
struct ieee80211_header *header;
struct ether_header *eh;
struct ifnet *ifp = &sc->arpcom.ac_if;
struct mbuf *m0;
size_t pktlen, fraglen, readlen, tmplen;
size_t bufp, ebufp;
u_int8_t *dst, *src;
u_int8_t siglev, antenna;
u_int first, ni, i;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
RAY_DPRINTF(sc, RAY_DBG_CCS, "using rcs 0x%x", rcs);
m0 = NULL;
readlen = 0;
/*
* Get first part of packet and the length. Do some sanity checks
* and get a mbuf.
*/
first = RAY_CCS_INDEX(rcs);
pktlen = SRAM_READ_FIELD_2(sc, rcs, ray_cmd_rx, c_pktlen);
siglev = SRAM_READ_FIELD_1(sc, rcs, ray_cmd_rx, c_siglev);
antenna = SRAM_READ_FIELD_1(sc, rcs, ray_cmd_rx, c_antenna);
if ((pktlen > MCLBYTES) || (pktlen < sizeof(struct ieee80211_header))) {
RAY_DPRINTF(sc, RAY_DBG_RECERR, "packet too big or too small");
ifp->if_ierrors++;
goto skip_read;
}
MGETHDR(m0, M_DONTWAIT, MT_DATA);
if (m0 == NULL) {
RAY_DPRINTF(sc, RAY_DBG_RECERR, "MGETHDR failed");
ifp->if_ierrors++;
goto skip_read;
}
if (pktlen > MHLEN) {
MCLGET(m0, M_DONTWAIT);
if (!(m0->m_flags & M_EXT)) {
RAY_DPRINTF(sc, RAY_DBG_RECERR, "MCLGET failed");
ifp->if_ierrors++;
m_freem(m0);
m0 = NULL;
goto skip_read;
}
}
m0->m_pkthdr.rcvif = ifp;
m0->m_pkthdr.len = pktlen;
m0->m_len = pktlen;
dst = mtod(m0, u_int8_t *);
/*
* Walk the fragment chain to build the complete packet.
*
* The use of two index variables removes a race with the
* hardware. If one index were used the clearing of the CCS would
* happen before reading the next pointer and the hardware can get in.
* Not my idea but verbatim from the NetBSD driver.
*/
i = ni = first;
while ((i = ni) && (i != RAY_CCS_LINK_NULL)) {
rcs = RAY_CCS_ADDRESS(i);
ni = SRAM_READ_FIELD_1(sc, rcs, ray_cmd_rx, c_nextfrag);
bufp = SRAM_READ_FIELD_2(sc, rcs, ray_cmd_rx, c_bufp);
fraglen = SRAM_READ_FIELD_2(sc, rcs, ray_cmd_rx, c_len);
RAY_DPRINTF(sc, RAY_DBG_RX,
"frag index %d len %d bufp 0x%x ni %d",
i, fraglen, (int)bufp, ni);
if (fraglen + readlen > pktlen) {
RAY_DPRINTF(sc, RAY_DBG_RECERR,
"bad length current 0x%x pktlen 0x%x",
fraglen + readlen, pktlen);
ifp->if_ierrors++;
m_freem(m0);
m0 = NULL;
goto skip_read;
}
if ((i < RAY_RCS_FIRST) || (i > RAY_RCS_LAST)) {
RAY_PRINTF(sc, "bad rcs index 0x%x", i);
ifp->if_ierrors++;
m_freem(m0);
m0 = NULL;
goto skip_read;
}
ebufp = bufp + fraglen;
if (ebufp <= RAY_RX_END)
SRAM_READ_REGION(sc, bufp, dst, fraglen);
else {
SRAM_READ_REGION(sc, bufp, dst,
(tmplen = RAY_RX_END - bufp));
SRAM_READ_REGION(sc, RAY_RX_BASE, dst + tmplen,
ebufp - RAY_RX_END);
}
dst += fraglen;
readlen += fraglen;
}
skip_read:
/*
* Walk the chain again to free the rcss.
*/
i = ni = first;
while ((i = ni) && (i != RAY_CCS_LINK_NULL)) {
rcs = RAY_CCS_ADDRESS(i);
ni = SRAM_READ_FIELD_1(sc, rcs, ray_cmd_rx, c_nextfrag);
RAY_CCS_FREE(sc, rcs);
}
if (m0 == NULL)
return;
/*
* Check the 802.11 packet type
*
* DATA packets are dealt with below, CTL and MGT packets
* are handled in their own functions.
*/
header = mtod(m0, struct ieee80211_header *);
if ((header->i_fc[0] & IEEE80211_FC0_VERSION_MASK)
!= IEEE80211_FC0_VERSION_0) {
RAY_DPRINTF(sc, RAY_DBG_RECERR,
"header not version 0 fc0 0x%x", header->i_fc[0]);
ifp->if_ierrors++;
m_freem(m0);
return;
}
switch (header->i_fc[0] & IEEE80211_FC0_TYPE_MASK) {
case IEEE80211_FC0_TYPE_MGT:
ray_rx_mgt(sc, m0);
m_freem(m0);
return;
break;
case IEEE80211_FC0_TYPE_CTL:
ray_rx_ctl(sc, m0);
m_freem(m0);
return;
break;
case IEEE80211_FC0_TYPE_DATA:
break;
default:
RAY_PRINTF(sc, "unknown packet fc0 0x%x", header->i_fc[0]);
ifp->if_ierrors++;
m_freem(m0);
return;
}
/*
* Check the the data packet subtype, some packets have
* nothing in them so we will drop them here.
*/
switch (header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
case IEEE80211_FC0_SUBTYPE_DATA_DATA:
case IEEE80211_FC0_SUBTYPE_DATA_DATA_CFACK:
case IEEE80211_FC0_SUBTYPE_DATA_DATA_CFPOLL:
case IEEE80211_FC0_SUBTYPE_DATA_DATA_CFACPL:
RAY_DPRINTF(sc, RAY_DBG_RX, "DATA packet");
break;
case IEEE80211_FC0_SUBTYPE_DATA_NULL:
case IEEE80211_FC0_SUBTYPE_DATA_CFACK:
case IEEE80211_FC0_SUBTYPE_DATA_CFPOLL:
case IEEE80211_FC0_SUBTYPE_DATA_CFACK_CFACK:
RAY_DPRINTF(sc, RAY_DBG_RX, "NULL packet");
m_freem(m0);
return;
break;
default:
RAY_PRINTF(sc, "reserved DATA packet subtype 0x%x",
header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
ifp->if_ierrors++;
m_freem(m0);
return;
}
/*
* Obtain the .11 src addresses.
*
* XXX This needs some work for INFRA mode
* XXX Do I need this at all? MGT and CTL is far easier.
*/
src = header->i_addr2;
switch (header->i_fc[1] & IEEE80211_FC1_DS_MASK) {
case IEEE80211_FC1_STA_TO_STA:
RAY_DPRINTF(sc, RAY_DBG_RX, "packet from sta %6D",
src, ":");
break;
case IEEE80211_FC1_STA_TO_AP: /* XXX XXX_ACTING_AP */
RAY_DPRINTF(sc, RAY_DBG_RX, "packet from sta to ap %6D %6D",
src, ":", header->i_addr3, ":");
ifp->if_ierrors++;
m_freem(m0);
break;
case IEEE80211_FC1_AP_TO_STA: /* XXX_INFRA */
RAY_DPRINTF(sc, RAY_DBG_RX, "packet from ap %6D",
src, ":");
ifp->if_ierrors++;
m_freem(m0);
break;
case IEEE80211_FC1_AP_TO_AP: /* XXX XXX_ACTING_AP */
RAY_DPRINTF(sc, RAY_DBG_RX, "packet between aps %6D %6D",
src, ":", header->i_addr2, ":");
ifp->if_ierrors++;
m_freem(m0);
return;
break;
default:
RAY_PRINTF(sc, "unknown packet fc1 0x%x", header->i_fc[1]);
ifp->if_ierrors++;
m_freem(m0);
return;
}
/*
* Translation - capability as described earlier
*
* Each case must remove the 802.11 header and leave an 802.3
* header in the mbuf copy addresses as needed.
*/
RAY_MBUF_DUMP(sc, RAY_DBG_RX, m0, "DATA packet before framing");
switch (sc->framing) {
case SC_FRAMING_WEBGEAR:
/* Nice and easy - just trim the 802.11 header */
m_adj(m0, sizeof(struct ieee80211_header));
break;
default:
RAY_PRINTF(sc, "unknown framing type %d", sc->framing);
ifp->if_ierrors++;
m_freem(m0);
return;
}
/*
* Finally, do a bit of house keeping before sending the packet
* up the stack.
*/
ifp->if_ipackets++;
ray_rx_update_cache(sc, src, siglev, antenna);
if (ifp->if_bpf)
bpf_mtap(ifp, m0);
eh = mtod(m0, struct ether_header *);
m_adj(m0, sizeof(struct ether_header));
ether_input(ifp, eh, m0);
return;
}
/*
* Deal with MGT packet types
*/
static void
ray_rx_mgt(struct ray_softc *sc, struct mbuf *m0)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
struct ieee80211_header *header = mtod(m0, struct ieee80211_header *);
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_MGT, "");
if ((header->i_fc[1] & IEEE80211_FC1_DS_MASK) !=
IEEE80211_FC1_STA_TO_STA) {
RAY_DPRINTF(sc, RAY_DBG_RECERR,
"MGT TODS/FROMDS wrong fc1 0x%x",
header->i_fc[1] & IEEE80211_FC1_DS_MASK);
ifp->if_ierrors++;
return;
}
/*
* Check the the mgt packet subtype, some packets should be
* dropped depending on the mode the station is in.
*
* XXX investigations of v5 firmware See pg 52(60) of docs
*
* P - proccess, J - Junk, E - ECF deals with, I - Illegal
* ECF Proccesses
* AHDOC procces or junk
* INFRA STA process or junk
* INFRA AP process or jumk
*
* +PPP IEEE80211_FC0_SUBTYPE_MGT_BEACON
* +EEE IEEE80211_FC0_SUBTYPE_MGT_PROBE_REQ
* +EEE IEEE80211_FC0_SUBTYPE_MGT_PROBE_RESP
* PPP IEEE80211_FC0_SUBTYPE_MGT_AUTH
* PPP IEEE80211_FC0_SUBTYPE_MGT_DEAUTH
* JJP IEEE80211_FC0_SUBTYPE_MGT_ASSOC_REQ
* JPJ IEEE80211_FC0_SUBTYPE_MGT_ASSOC_RESP
* JPP IEEE80211_FC0_SUBTYPE_MGT_DISASSOC
* JJP IEEE80211_FC0_SUBTYPE_MGT_REASSOC_REQ
* JPJ IEEE80211_FC0_SUBTYPE_MGT_REASSOC_RESP
* +EEE IEEE80211_FC0_SUBTYPE_MGT_ATIM
*/
RAY_MBUF_DUMP(sc, RAY_DBG_RX, m0, "MGT packet");
switch (header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
case IEEE80211_FC0_SUBTYPE_MGT_BEACON:
RAY_DPRINTF(sc, RAY_DBG_MGT, "BEACON MGT packet");
/* XXX furtle anything interesting out */
/* Note that there are rules governing what beacons to
read, see 8802 S7.2.3, S11.1.2.3 */
break;
case IEEE80211_FC0_SUBTYPE_MGT_AUTH:
RAY_DPRINTF(sc, RAY_DBG_MGT, "AUTH MGT packet");
ray_rx_mgt_auth(sc, m0);
break;
case IEEE80211_FC0_SUBTYPE_MGT_DEAUTH:
RAY_DPRINTF(sc, RAY_DBG_MGT, "DEAUTH MGT packet");
break;
case IEEE80211_FC0_SUBTYPE_MGT_ASSOC_REQ:
case IEEE80211_FC0_SUBTYPE_MGT_REASSOC_REQ:
RAY_DPRINTF(sc, RAY_DBG_MGT, "(RE)ASSOC_REQ MGT packet");
if (sc->sc_c.np_ap_status != RAY_MIB_AP_STATUS_AP)
return;
else
RAY_PANIC(sc, "can't be an AP yet"); /* XXX_ACTING_AP */
break;
case IEEE80211_FC0_SUBTYPE_MGT_ASSOC_RESP:
case IEEE80211_FC0_SUBTYPE_MGT_REASSOC_RESP:
RAY_DPRINTF(sc, RAY_DBG_MGT, "(RE)ASSOC_RESP MGT packet");
if ((sc->sc_d.np_net_type == RAY_MIB_NET_TYPE_ADHOC) ||
(sc->sc_c.np_ap_status == RAY_MIB_AP_STATUS_AP))
return;
else
RAY_PANIC(sc, "can't be in INFRA yet"); /* XXX_INFRA */
break;
case IEEE80211_FC0_SUBTYPE_MGT_DISASSOC:
RAY_DPRINTF(sc, RAY_DBG_MGT, "DISASSOC MGT packet");
if (sc->sc_d.np_net_type == RAY_MIB_NET_TYPE_ADHOC)
return;
else
RAY_PANIC(sc, "can't be in INFRA yet"); /* XXX_INFRA */
break;
case IEEE80211_FC0_SUBTYPE_MGT_PROBE_REQ:
case IEEE80211_FC0_SUBTYPE_MGT_PROBE_RESP:
case IEEE80211_FC0_SUBTYPE_MGT_ATIM:
RAY_PRINTF(sc, "unexpected MGT packet subtype 0x%0x",
header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
ifp->if_ierrors++;
break;
default:
RAY_PRINTF(sc, "reserved MGT packet subtype 0x%x",
header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
ifp->if_ierrors++;
return;
}
}
/*
* Deal with AUTH management packet types
*/
static void
ray_rx_mgt_auth(struct ray_softc *sc, struct mbuf *m0)
{
struct ieee80211_header *header = mtod(m0, struct ieee80211_header *);
ieee80211_mgt_auth_t auth = (u_int8_t *)(header+1);
size_t ccs, bufp;
int pktlen;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_MGT, "");
RAY_MAP_CM(sc);
switch (IEEE80211_AUTH_ALGORITHM(auth)) {
case IEEE80211_AUTH_OPENSYSTEM:
if (IEEE80211_AUTH_TRANSACTION(auth) == 1) {
/* XXX see sys/dev/awi/awk.c:awi_{recv|send}_auth */
/*
* Send authentication response if possible. If
* we are out of CCSs we don't to anything, the
* other end will try again.
*/
if (ray_ccs_tx(sc, &ccs, &bufp)) {
return;
}
RAY_DPRINTF(sc, RAY_DBG_MGT, "bufp %x", bufp);
bufp = ray_tx_wrhdr(sc, bufp,
IEEE80211_FC0_TYPE_MGT |
IEEE80211_FC0_SUBTYPE_MGT_AUTH,
IEEE80211_FC1_STA_TO_STA,
header->i_addr2,
header->i_addr1,
header->i_addr3);
for (pktlen = 0; pktlen < 6; pktlen++)
SRAM_WRITE_1(sc, bufp+pktlen, 0);
pktlen += sizeof(struct ieee80211_header);
SRAM_WRITE_1(sc, bufp+2, 2);
RAY_DPRINTF(sc, RAY_DBG_MGT, "dump start %x", bufp-pktlen+6);
RAY_DHEX8(sc, RAY_DBG_MGT, bufp-pktlen+6, pktlen, "AUTH MGT response to Open System request");
(void)ray_tx_send(sc, ccs, pktlen, header->i_addr2);
} else if (IEEE80211_AUTH_TRANSACTION(auth) == 2) {
if (IEEE80211_AUTH_STATUS(auth) !=
IEEE80211_STATUS_SUCCESS)
RAY_PRINTF(sc,
"authentication failed with status %d",
IEEE80211_AUTH_STATUS(auth));
/* XXX probably need a lot more than this */
}
break;
case IEEE80211_AUTH_SHAREDKEYS:
RAY_PRINTF(sc, "shared key authentication requested");
break;
default:
RAY_PRINTF(sc,
"unknown authentication subtype 0x%04hx",
IEEE80211_AUTH_ALGORITHM(auth));
break;
}
}
/*
* Deal with CTL packet types
*/
static void
ray_rx_ctl(struct ray_softc *sc, struct mbuf *m0)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
struct ieee80211_header *header = mtod(m0, struct ieee80211_header *);
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_CTL, "");
if ((header->i_fc[1] & IEEE80211_FC1_DS_MASK) !=
IEEE80211_FC1_STA_TO_STA) {
RAY_DPRINTF(sc, RAY_DBG_RECERR,
"CTL TODS/FROMDS wrong fc1 0x%x",
header->i_fc[1] & IEEE80211_FC1_DS_MASK);
ifp->if_ierrors++;
return;
}
/*
* Check the the ctl packet subtype, some packets should be
* dropped depending on the mode the station is in. The ECF
* should deal with everything but the power save poll to an
* AP
*
* XXX investigations of v5 firmware See pg 52(60) of docs
*
*/
RAY_MBUF_DUMP(sc, RAY_DBG_CTL, m0, "CTL packet");
switch (header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
case IEEE80211_FC0_SUBTYPE_CTL_PS_POLL:
RAY_DPRINTF(sc, RAY_DBG_CTL, "PS_POLL CTL packet");
if (sc->sc_c.np_ap_status != RAY_MIB_AP_STATUS_AP)
return;
else
RAY_PANIC(sc, "can't be an AP yet"); /* XXX_ACTING_AP */
break;
case IEEE80211_FC0_SUBTYPE_CTL_RTS:
case IEEE80211_FC0_SUBTYPE_CTL_CTS:
case IEEE80211_FC0_SUBTYPE_CTL_ACK:
case IEEE80211_FC0_SUBTYPE_CTL_CFEND:
case IEEE80211_FC0_SUBTYPE_CTL_CFEND_CFACK:
RAY_PRINTF(sc, "unexpected CTL packet subtype 0x%0x",
header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
ifp->if_ierrors++;
break;
default:
RAY_PRINTF(sc, "reserved CTL packet subtype 0x%x",
header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
ifp->if_ierrors++;
return;
}
}
/*
* Update rx level and antenna cache
*/
static void
ray_rx_update_cache(struct ray_softc *sc, u_int8_t *src, u_int8_t siglev, u_int8_t antenna)
{
struct timeval mint;
struct ray_siglev *sl;
int i, mini;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
/* Try to find host */
for (i = 0; i < RAY_NSIGLEVRECS; i++) {
sl = &sc->sc_siglevs[i];
if (bcmp(sl->rsl_host, src, ETHER_ADDR_LEN) == 0)
goto found;
}
/* Not found, find oldest slot */
mini = 0;
mint.tv_sec = LONG_MAX;
mint.tv_usec = 0;
for (i = 0; i < RAY_NSIGLEVRECS; i++) {
sl = &sc->sc_siglevs[i];
if (timevalcmp(&sl->rsl_time, &mint, <)) {
mini = i;
mint = sl->rsl_time;
}
}
sl = &sc->sc_siglevs[mini];
bzero(sl->rsl_siglevs, RAY_NSIGLEV);
bzero(sl->rsl_antennas, RAY_NANTENNA);
bcopy(src, sl->rsl_host, ETHER_ADDR_LEN);
found:
microtime(&sl->rsl_time);
bcopy(sl->rsl_siglevs, &sl->rsl_siglevs[1], RAY_NSIGLEV-1);
sl->rsl_siglevs[0] = siglev;
if (sc->sc_version != RAY_ECFS_BUILD_4) {
bcopy(sl->rsl_antennas, &sl->rsl_antennas[1], RAY_NANTENNA-1);
sl->rsl_antennas[0] = antenna;
}
}
/*
* Interrupt handling
*/
/*
* Process an interrupt
*/
static void
ray_intr(void *xsc)
{
struct ray_softc *sc = (struct ray_softc *)xsc;
struct ifnet *ifp = &sc->arpcom.ac_if;
size_t ccs;
u_int8_t cmd;
int ccsi, count;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
if (sc->gone)
return;
/*
* Check that the interrupt was for us, if so get the rcs/ccs
* and vector on the command contained within it.
*/
if (!RAY_HCS_INTR(sc))
count = 0;
else {
count = 1;
ccsi = SRAM_READ_1(sc, RAY_SCB_RCSI);
ccs = RAY_CCS_ADDRESS(ccsi);
cmd = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_cmd);
if (ccsi <= RAY_CCS_LAST)
ray_intr_ccs(sc, cmd, ccs);
else if (ccsi <= RAY_RCS_LAST)
ray_intr_rcs(sc, cmd, ccs);
else
RAY_PRINTF(sc, "bad ccs index 0x%x", ccsi);
}
if (count)
RAY_HCS_CLEAR_INTR(sc);
RAY_DPRINTF(sc, RAY_DBG_RX, "interrupt %s handled", count?"was":"not");
/* Send any packets lying around and update error counters */
if (!(ifp->if_flags & IFF_OACTIVE) && (ifp->if_snd.ifq_head != NULL))
ray_tx(ifp);
if ((++sc->sc_checkcounters % 32) == 0)
ray_intr_updt_errcntrs(sc);
}
/*
* Read the error counters.
*/
static void
ray_intr_updt_errcntrs(struct ray_softc *sc)
{
size_t csc;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
/*
* The card implements the following protocol to keep the
* values from being changed while read: It checks the `own'
* bit and if zero writes the current internal counter value,
* it then sets the `own' bit to 1. If the `own' bit was 1 it
* incremenets its internal counter. The user thus reads the
* counter if the `own' bit is one and then sets the own bit
* to 0.
*/
csc = RAY_STATUS_BASE;
if (SRAM_READ_FIELD_1(sc, csc, ray_csc, csc_mrxo_own)) {
sc->sc_rxoverflow +=
SRAM_READ_FIELD_2(sc, csc, ray_csc, csc_mrx_overflow);
SRAM_WRITE_FIELD_1(sc, csc, ray_csc, csc_mrxo_own, 0);
}
if (SRAM_READ_FIELD_1(sc, csc, ray_csc, csc_mrxc_own)) {
sc->sc_rxcksum +=
SRAM_READ_FIELD_2(sc, csc, ray_csc, csc_mrx_overflow);
SRAM_WRITE_FIELD_1(sc, csc, ray_csc, csc_mrxc_own, 0);
}
if (SRAM_READ_FIELD_1(sc, csc, ray_csc, csc_rxhc_own)) {
sc->sc_rxhcksum +=
SRAM_READ_FIELD_2(sc, csc, ray_csc, csc_rx_hcksum);
SRAM_WRITE_FIELD_1(sc, csc, ray_csc, csc_rxhc_own, 0);
}
sc->sc_rxnoise = SRAM_READ_FIELD_1(sc, csc, ray_csc, csc_rx_noise);
}
/*
* Process CCS command completion
*/
static void
ray_intr_ccs(struct ray_softc *sc, u_int8_t cmd, size_t ccs)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
/* XXX replace this with a jump table? */
switch (cmd) {
case RAY_CMD_DOWNLOAD_PARAMS:
RAY_DPRINTF(sc, RAY_DBG_COM, "START_PARAMS");
ray_init_download_done(sc, ccs);
break;
case RAY_CMD_UPDATE_PARAMS:
RAY_DPRINTF(sc, RAY_DBG_COM, "UPDATE_PARAMS");
ray_upparams_done(sc, ccs);
break;
case RAY_CMD_REPORT_PARAMS:
RAY_DPRINTF(sc, RAY_DBG_COM, "REPORT_PARAMS");
ray_repparams_done(sc, ccs);
break;
case RAY_CMD_UPDATE_MCAST:
RAY_DPRINTF(sc, RAY_DBG_COM, "UPDATE_MCAST");
ray_mcast_done(sc, ccs);
break;
case RAY_CMD_START_NET:
case RAY_CMD_JOIN_NET:
RAY_DPRINTF(sc, RAY_DBG_COM, "START|JOIN_NET");
ray_init_sj_done(sc, ccs);
break;
case RAY_CMD_TX_REQ:
RAY_DPRINTF(sc, RAY_DBG_COM, "TX_REQ");
ray_tx_done(sc, ccs);
break;
case RAY_CMD_START_ASSOC:
RAY_DPRINTF(sc, RAY_DBG_COM, "START_ASSOC");
ray_init_assoc_done(sc, ccs);
break;
case RAY_CMD_UPDATE_APM:
RAY_PRINTF(sc, "unexpected UPDATE_APM");
break;
case RAY_CMD_TEST_MEM:
RAY_PRINTF(sc, "unexpected TEST_MEM");
break;
case RAY_CMD_SHUTDOWN:
RAY_PRINTF(sc, "unexpected SHUTDOWN");
break;
case RAY_CMD_DUMP_MEM:
RAY_PRINTF(sc, "unexpected DUMP_MEM");
break;
case RAY_CMD_START_TIMER:
RAY_PRINTF(sc, "unexpected START_TIMER");
break;
default:
RAY_PRINTF(sc, "unknown command 0x%x", cmd);
break;
}
}
/*
* Process ECF command request
*/
static void
ray_intr_rcs(struct ray_softc *sc, u_int8_t cmd, size_t rcs)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
/* XXX replace this with a jump table? */
switch (cmd) {
case RAY_ECMD_RX_DONE:
RAY_DPRINTF(sc, RAY_DBG_RX, "RX_DONE");
ray_rx(sc, rcs);
break;
case RAY_ECMD_REJOIN_DONE:
RAY_DPRINTF(sc, RAY_DBG_RX, "REJOIN_DONE");
sc->sc_havenet = 1; /* XXX Should not be here but in function */
break;
case RAY_ECMD_ROAM_START:
RAY_DPRINTF(sc, RAY_DBG_RX, "ROAM_START");
sc->sc_havenet = 0; /* XXX Should not be here but in function */
break;
case RAY_ECMD_JAPAN_CALL_SIGNAL:
RAY_PRINTF(sc, "unexpected JAPAN_CALL_SIGNAL");
break;
default:
RAY_PRINTF(sc, "unknown command 0x%x", cmd);
break;
}
RAY_CCS_FREE(sc, rcs);
}
#if XXX_MCAST
/*
* XXX First cut at this code - have not tried compiling it yet. V. confusing
* XXX interactions between allmulti, promisc and mcast. Going to leave it
* XXX for now.
* XXX Don't like the code bloat to set promisc up - we use it here, ray_init,
* XXX ray_promisc_user and ray_upparams_user...
* XXX need to use the runq_array
*/
/*
* User land entry to multicast list changes
*/
static int
ray_mcast_user(struct ray_softc *sc)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
struct ray_comq_entry *com[2];
int error, count;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
/*
* The multicast list is only 16 items long so use promiscuous
* mode if needed.
*
* We track this stuff even when not running.
*/
for (ifma = ifp->if_multiaddrs.lh_first, count = 0; ifma != NULL;
ifma = ifma->ifma_link.le_next, count++)
if (count > 16)
ifp->if_flags |= IFF_ALLMULTI;
else if (ifp->if_flags & IFF_ALLMULTI)
ifp->if_flags &= ~IFF_ALLMULTI;
if (!(ifp->if_flags & IFF_RUNNING)) {
return (0);
}
ncom = 0;
/*
* If we need to change the promiscuous mode then do so.
*/
if (sc->promisc != !!(ifp->if_flags & (IFF_PROMISC|IFF_ALLMULTI)))
com[ncom++] = RAY_COM_MALLOC(ray_promisc, 0);
/*
* If we need to set the mcast list then do so.
*/
if (!(ifp->if_flags & IFF_ALLMULTI))
com[ncom++] = RAY_COM_MALLOC(ray_mcast, 0);
error = ray_com_runq_add(sc, com, ncom, "raymcast");
if ((error == EINTR) || (error == ERESTART))
return (error);
/* XXX no real error processing from anything yet! */
error = com->c_retval;
for (i = 0; i < ncom; i++)
FREE(com[i], M_RAYCOM);
return (error);
}
/*
* Runq entry to setting the multicast filter list
*/
static void
ray_mcast(struct ray_softc *sc, struct ray_comq_entry *com)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
struct ifmultiaddr *ifma;
size_t bufp;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
ray_ccs_fill(sc, com->c_ccs, RAY_CMD_UPDATE_MCAST);
SRAM_WRITE_FIELD_1(sc, com->c_ccs
ray_cmd_update_mcast, c_nmcast, count);
bufp = RAY_HOST_TO_ECF_BASE;
for (ifma = ifp->if_multiaddrs.lh_first; ifma != NULL;
ifma = ifma->ifma_link.le_next) {
SRAM_WRITE_REGION(
sc,
bufp,
LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
ETHER_ADDR_LEN
);
bufp += ETHER_ADDR_LEN;
}
ray_com_ecf(sc, com);
}
/*
* Complete the multicast filter list update
*/
static void
ray_mcast_done(struct ray_softc *sc, size_t ccs)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_COM_CHECK(sc, ccs);
ray_com_ecf_done(sc);
}
#else
static int ray_mcast_user(struct ray_softc *sc) {return (0);}
static void ray_mcast(struct ray_softc *sc, struct ray_comq_entry *com) {}
static void ray_mcast_done(struct ray_softc *sc, size_t ccs) {}
#endif /* XXX_MCAST */
/*
* User land entry to promiscuous mode change
*/
static int
ray_promisc_user(struct ray_softc *sc)
{
struct ray_comq_entry *com[1];
int error, ncom, i;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
ncom = 0;
com[ncom++] = RAY_COM_MALLOC(ray_promisc, RAY_COM_FWOK);
error = ray_com_runq_add(sc, com, ncom, "raypromisc");
if ((error == EINTR) || (error == ERESTART))
return (error);
/* XXX no real error processing from anything yet! */
error = com[0]->c_retval;
for (i = 0; i < ncom; i++)
FREE(com[i], M_RAYCOM);
return (error);
}
/*
* Runq entry to set/reset promiscuous mode
*/
static void
ray_promisc(struct ray_softc *sc, struct ray_comq_entry *com)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
ray_ccs_fill(sc, com->c_ccs, RAY_CMD_UPDATE_PARAMS);
SRAM_WRITE_FIELD_1(sc, com->c_ccs,
ray_cmd_update, c_paramid, RAY_MIB_PROMISC);
SRAM_WRITE_FIELD_1(sc, com->c_ccs, ray_cmd_update, c_nparam, 1);
SRAM_WRITE_1(sc, RAY_HOST_TO_ECF_BASE,
!!(ifp->if_flags & (IFF_PROMISC|IFF_ALLMULTI)));
ray_com_ecf(sc, com);
}
/*
* User land entry to parameter reporting
*/
static int
ray_repparams_user(struct ray_softc *sc, struct ray_param_req *pr)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
struct ray_comq_entry *com[1];
int error, ncom, i;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
if (!(ifp->if_flags & IFF_RUNNING)) {
pr->r_failcause = RAY_FAILCAUSE_EDEVSTOP;
return (EIO);
}
/*
* Test for illegal values or immediate responses
*/
if (pr->r_paramid > RAY_MIB_MAX)
return (EINVAL);
if ((sc->sc_version == RAY_ECFS_BUILD_4) &&
!(mib_info[pr->r_paramid][0] & RAY_V4))
return (EINVAL);
if ((sc->sc_version == RAY_ECFS_BUILD_5) &&
!(mib_info[pr->r_paramid][0] & RAY_V5))
return (EINVAL);
if (pr->r_paramid > RAY_MIB_LASTUSER) {
switch (pr->r_paramid) {
case RAY_MIB_VERSION:
if (sc->sc_version == RAY_ECFS_BUILD_4)
*pr->r_data = RAY_V4;
else
*pr->r_data = RAY_V5;
break;
case RAY_MIB_CUR_BSSID:
bcopy(sc->sc_c.np_bss_id, pr->r_data, ETHER_ADDR_LEN);
break;
case RAY_MIB_CUR_INITED:
*pr->r_data = sc->sc_c.np_inited;
break;
case RAY_MIB_CUR_DEF_TXRATE:
*pr->r_data = sc->sc_c.np_def_txrate;
break;
case RAY_MIB_CUR_ENCRYPT:
*pr->r_data = sc->sc_c.np_encrypt;
break;
case RAY_MIB_CUR_NET_TYPE:
*pr->r_data = sc->sc_c.np_net_type;
break;
case RAY_MIB_CUR_SSID:
bcopy(sc->sc_c.np_ssid, pr->r_data, IEEE80211_NWID_LEN);
break;
case RAY_MIB_CUR_PRIV_START:
*pr->r_data = sc->sc_c.np_priv_start;
break;
case RAY_MIB_CUR_PRIV_JOIN:
*pr->r_data = sc->sc_c.np_priv_join;
break;
case RAY_MIB_DES_BSSID:
bcopy(sc->sc_d.np_bss_id, pr->r_data, ETHER_ADDR_LEN);
break;
case RAY_MIB_DES_INITED:
*pr->r_data = sc->sc_d.np_inited;
break;
case RAY_MIB_DES_DEF_TXRATE:
*pr->r_data = sc->sc_d.np_def_txrate;
break;
case RAY_MIB_DES_ENCRYPT:
*pr->r_data = sc->sc_d.np_encrypt;
break;
case RAY_MIB_DES_NET_TYPE:
*pr->r_data = sc->sc_d.np_net_type;
break;
case RAY_MIB_DES_SSID:
bcopy(sc->sc_d.np_ssid, pr->r_data, IEEE80211_NWID_LEN);
break;
case RAY_MIB_DES_PRIV_START:
*pr->r_data = sc->sc_d.np_priv_start;
break;
case RAY_MIB_DES_PRIV_JOIN:
*pr->r_data = sc->sc_d.np_priv_join;
break;
default:
return (EINVAL);
break;
}
pr->r_failcause = 0;
if (sc->sc_version == RAY_ECFS_BUILD_4)
pr->r_len = mib_info[pr->r_paramid][RAY_MIB_INFO_SIZ4];
else if (sc->sc_version == RAY_ECFS_BUILD_5)
pr->r_len = mib_info[pr->r_paramid][RAY_MIB_INFO_SIZ5];
return (0);
}
pr->r_failcause = 0;
ncom = 0;
com[ncom++] = RAY_COM_MALLOC(ray_repparams, RAY_COM_FWOK);
com[ncom-1]->c_pr = pr;
error = ray_com_runq_add(sc, com, ncom, "rayrepparams");
if ((error == EINTR) || (error == ERESTART))
return (error);
/* XXX no real error processing from anything yet! */
error = com[0]->c_retval;
if (!error && pr->r_failcause)
error = EINVAL;
for (i = 0; i < ncom; i++)
FREE(com[i], M_RAYCOM);
return (error);
}
/*
* Runq entry to read the required parameter
*/
static void
ray_repparams(struct ray_softc *sc, struct ray_comq_entry *com)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
ray_ccs_fill(sc, com->c_ccs, RAY_CMD_REPORT_PARAMS);
SRAM_WRITE_FIELD_1(sc, com->c_ccs,
ray_cmd_report, c_paramid, com->c_pr->r_paramid);
SRAM_WRITE_FIELD_1(sc, com->c_ccs, ray_cmd_report, c_nparam, 1);
ray_com_ecf(sc, com);
}
/*
* Complete the parameter reporting
*/
static void
ray_repparams_done(struct ray_softc *sc, size_t ccs)
{
struct ray_comq_entry *com;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
RAY_COM_CHECK(sc, ccs);
com = TAILQ_FIRST(&sc->sc_comq);
com->c_pr->r_failcause =
SRAM_READ_FIELD_1(sc, ccs, ray_cmd_report, c_failcause);
com->c_pr->r_len =
SRAM_READ_FIELD_1(sc, ccs, ray_cmd_report, c_len);
SRAM_READ_REGION(sc, RAY_ECF_TO_HOST_BASE,
com->c_pr->r_data, com->c_pr->r_len);
ray_com_ecf_done(sc);
}
/*
* User land entry (and exit) to the error counters
*/
static int
ray_repstats_user(struct ray_softc *sc, struct ray_stats_req *sr)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
if (!(ifp->if_flags & IFF_RUNNING)) {
return (EIO);
}
sr->rxoverflow = sc->sc_rxoverflow;
sr->rxcksum = sc->sc_rxcksum;
sr->rxhcksum = sc->sc_rxhcksum;
sr->rxnoise = sc->sc_rxnoise;
return (0);
}
/*
* User land entry to parameter update changes
*
* As a parameter change can cause the network parameters to be
* invalid we have to re-sttart/join.
*/
static int
ray_upparams_user(struct ray_softc *sc, struct ray_param_req *pr)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
struct ray_comq_entry *com[3];
int i, todo, error, ncom;
#define RAY_UPP_SJ 0x1
#define RAY_UPP_PARAMS 0x2
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
if (!(ifp->if_flags & IFF_RUNNING)) {
pr->r_failcause = RAY_FAILCAUSE_EDEVSTOP;
return (EIO); /* XXX Use this for other IFF_RUNNING checks */
}
/*
* Handle certain parameters specially
*/
todo = 0;
pr->r_failcause = 0;
if (pr->r_paramid > RAY_MIB_LASTUSER)
return (EINVAL);
if ((sc->sc_version == RAY_ECFS_BUILD_4) &&
!(mib_info[pr->r_paramid][0] & RAY_V4))
return (EINVAL);
if ((sc->sc_version == RAY_ECFS_BUILD_5) &&
!(mib_info[pr->r_paramid][0] & RAY_V5))
return (EINVAL);
switch (pr->r_paramid) {
case RAY_MIB_NET_TYPE: /* Updated via START_NET JOIN_NET */
if (sc->sc_c.np_net_type == *pr->r_data)
return (0);
sc->sc_d.np_net_type = *pr->r_data;
todo |= RAY_UPP_SJ;
break;
case RAY_MIB_SSID: /* Updated via START_NET JOIN_NET */
if (bcmp(sc->sc_c.np_ssid, pr->r_data, IEEE80211_NWID_LEN) == 0)
return (0);
bcopy(pr->r_data, sc->sc_d.np_ssid, IEEE80211_NWID_LEN);
todo |= RAY_UPP_SJ;
break;
case RAY_MIB_PRIVACY_MUST_START:/* Updated via START_NET */
if (sc->sc_c.np_net_type != RAY_MIB_NET_TYPE_ADHOC)
return (EINVAL);
if (sc->sc_c.np_priv_start == *pr->r_data)
return (0);
sc->sc_d.np_priv_start = *pr->r_data;
todo |= RAY_UPP_SJ;
break;
case RAY_MIB_PRIVACY_CAN_JOIN: /* Updated via START_NET JOIN_NET */
if (sc->sc_c.np_priv_join == *pr->r_data)
return (0);
sc->sc_d.np_priv_join = *pr->r_data;
todo |= RAY_UPP_SJ;
break;
case RAY_MIB_BASIC_RATE_SET:
sc->sc_d.np_def_txrate = *pr->r_data;
todo |= RAY_UPP_PARAMS;
break;
case RAY_MIB_AP_STATUS: /* Unsupported */
case RAY_MIB_MAC_ADDR: /* XXX Need interface up */
case RAY_MIB_PROMISC: /* BPF */
return (EINVAL);
break;
default:
todo |= RAY_UPP_PARAMS;
todo |= RAY_UPP_SJ;
break;
}
ncom = 0;
if (todo & RAY_UPP_PARAMS) {
com[ncom++] = RAY_COM_MALLOC(ray_upparams, 0);
com[ncom-1]->c_pr = pr;
}
if ((todo & RAY_UPP_SJ) && (ifp->if_flags & IFF_RUNNING)) {
com[ncom++] = RAY_COM_MALLOC(ray_init_sj, 0);
#if XXX_ASSOC
if (sc->sc_d.np_net_type == RAY_MIB_NET_TYPE_INFRA)
com[ncom++] = RAY_COM_MALLOC(ray_init_assoc, 0);
#endif /* XXX_ASSOC */
}
error = ray_com_runq_add(sc, com, ncom, "rayupparams");
if ((error == EINTR) || (error == ERESTART))
return (error);
/* XXX no real error processing from anything yet! */
error = com[0]->c_retval;
if (!error && pr->r_failcause)
error = EINVAL;
for (i = 0; i < ncom; i++)
FREE(com[i], M_RAYCOM);
return (error);
}
/*
* Runq entry to update a parameter
*/
static void
ray_upparams(struct ray_softc *sc, struct ray_comq_entry *com)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
ray_ccs_fill(sc, com->c_ccs, RAY_CMD_UPDATE_PARAMS);
SRAM_WRITE_FIELD_1(sc, com->c_ccs,
ray_cmd_update, c_paramid, com->c_pr->r_paramid);
SRAM_WRITE_FIELD_1(sc, com->c_ccs, ray_cmd_update, c_nparam, 1);
SRAM_WRITE_REGION(sc, RAY_HOST_TO_ECF_BASE,
com->c_pr->r_data, com->c_pr->r_len);
ray_com_ecf(sc, com);
}
/*
* Complete the parameter update
*/
static void
ray_upparams_done(struct ray_softc *sc, size_t ccs)
{
struct ray_comq_entry *com;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
RAY_COM_CHECK(sc, ccs);
com = TAILQ_FIRST(&sc->sc_comq);
switch (SRAM_READ_FIELD_1(sc, ccs, ray_cmd_update, c_paramid)) {
case RAY_MIB_PROMISC:
sc->sc_promisc = SRAM_READ_1(sc, RAY_HOST_TO_ECF_BASE);
RAY_DPRINTF(sc, RAY_DBG_IOCTL,
"promisc value %d", sc->sc_promisc);
break;
default:
com->c_pr->r_failcause =
SRAM_READ_FIELD_1(sc, ccs, ray_cmd_update, c_failcause);
break;
}
ray_com_ecf_done(sc);
}
/*
* Command queuing and execution
*/
/*
* Set up a comq entry struct
*/
static struct ray_comq_entry *
ray_com_init(struct ray_comq_entry *com, ray_comqfn_t function, int flags, char *mesg)
{
com->c_function = function;
com->c_flags = flags;
com->c_retval = 0;
com->c_ccs = NULL;
com->c_wakeup = NULL;
com->c_pr = NULL;
com->c_mesg = mesg;
return (com);
}
/*
* Malloc and set up a comq entry struct
*/
static struct ray_comq_entry *
ray_com_malloc(ray_comqfn_t function, int flags, char *mesg)
{
struct ray_comq_entry *com;
MALLOC(com, struct ray_comq_entry *,
sizeof(struct ray_comq_entry), M_RAYCOM, M_WAITOK);
return (ray_com_init(com, function, flags, mesg));
}
/*
* Add an array of commands to the runq, get some ccs's for them and
* then run, waiting on the last command.
*
* We add the commands to the queue first to preserve ioctl ordering.
*
* On any error, this routine simply returns. This ensures that commands
* remain serialised, even though recovery is difficult - but as the
* only failure mechanisms are a signal or detach/stop most callers
* won't bother restarting.
*/
static int
ray_com_runq_add(struct ray_softc *sc, struct ray_comq_entry *com[], int ncom, char *wmesg)
{
int i, error;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_COM, "");
error = 0;
/*
* Add the commands to the runq but don't let it run until
* the ccs's are allocated successfully
*/
com[0]->c_flags |= RAY_COM_FWAIT;
for (i = 0; i < ncom; i++) {
com[i]->c_wakeup = com[ncom-1];
RAY_DCOM(sc, RAY_DBG_COM, com[i], "adding");
TAILQ_INSERT_TAIL(&sc->sc_comq, com[i], c_chain);
}
com[ncom-1]->c_flags = RAY_COM_FWOK;
/*
* Allocate ccs's for each command. If we fail, we bail
* for the caller to sort everything out.
*/
for (i = 0; i < ncom; i++) {
error = ray_ccs_alloc(sc, &com[i]->c_ccs, wmesg);
if (error)
return (error);
}
/*
* Allow the queue to run and if needed sleep
*/
com[0]->c_flags &= ~RAY_COM_FWAIT;
ray_com_runq(sc);
if (TAILQ_FIRST(&sc->sc_comq) != NULL) {
RAY_DPRINTF(sc, RAY_DBG_COM, "sleeping");
error = tsleep(com[ncom-1], PCATCH, wmesg, 0);
RAY_DPRINTF(sc, RAY_DBG_COM, "awakened, tsleep returned 0x%x", error);
} else
error = 0;
return (error);
}
/*
* Run the command at the head of the queue (if not already running)
*/
static void
ray_com_runq(struct ray_softc *sc)
{
struct ray_comq_entry *com;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_COM, "");
com = TAILQ_FIRST(&sc->sc_comq);
#if RAY_DEBUG & RAY_DBG_COM /* XXX this can go later */
if (com == NULL) {
RAY_DPRINTF(sc, RAY_DBG_COM, "empty command queue");
return;
}
if (com->c_flags & RAY_COM_FRUNNING) {
RAY_DPRINTF(sc, RAY_DBG_COM, "command already running");
return;
}
if (com->c_flags & RAY_COM_FWAIT) {
RAY_DPRINTF(sc, RAY_DBG_COM, "command not ready");
return;
}
#else
if ((com == NULL) ||
(com->c_flags & RAY_COM_FRUNNING) ||
(com->c_flags & RAY_COM_FWAIT))
return;
#endif /* RAY_DEBUG & RAY_DBG_COM */
com->c_flags |= RAY_COM_FRUNNING;
RAY_DCOM(sc, RAY_DBG_COM, com, "running");
com->c_function(sc, com);
}
/*
* Abort the execution of a run queue entry and wakeup the
* user level caller.
*
* We do not remove the entry from the runq incase the caller want's to
* retry and to prevent any other commands being run. The user level caller
* must acknowledge the abort.
*/
static void
ray_com_runq_abort(struct ray_softc *sc, struct ray_comq_entry *com, int reason)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_COM, "");
#if RAY_DEBUG & RAY_DBG_COM
if (com != TAILQ_FIRST(&sc->sc_comq))
RAY_PANIC(sc, "com and head of queue");
#endif /* RAY_DEBUG & RAY_DBG_COM */
RAY_DCOM(sc, RAY_DBG_COM, com, "aborting");
com->c_retval = reason;
wakeup(com->c_wakeup);
}
/*
* Remove an aborted command and re-run the queue
*/
static void
ray_com_runq_clrabort(struct ray_softc *sc, struct ray_comq_entry *com)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_COM, "");
#if RAY_DEBUG & RAY_DBG_COM
if (com != TAILQ_FIRST(&sc->sc_comq))
RAY_PANIC(sc, "com and head of queue");
#endif /* RAY_DEBUG & RAY_DBG_COM */
RAY_DCOM(sc, RAY_DBG_COM, com, "removing");
TAILQ_REMOVE(&sc->sc_comq, com, c_chain);
ray_com_runq(sc);
}
/*
* Remove run command, free ccs and wakeup caller.
*
* Minimal checks are done here as we ensure that the com and command
* handler were matched up earlier. Must be called at splnet or higher
* so that entries on the command queue are correctly removed.
*
* Remove the com from the comq, and wakeup the caller if it requested
* to be woken. This is used for ensuring a sequence of commands
* completes. Finally, re-run the queue.
*/
static void
ray_com_runq_done(struct ray_softc *sc)
{
struct ray_comq_entry *com;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_COM, "");
com = TAILQ_FIRST(&sc->sc_comq); /* XXX shall we check this as below */
RAY_DCOM(sc, RAY_DBG_COM, com, "removing");
TAILQ_REMOVE(&sc->sc_comq, com, c_chain);
com->c_flags &= ~RAY_COM_FRUNNING;
com->c_flags |= RAY_COM_FCOMPLETED;
com->c_retval = 0;
ray_ccs_free(sc, com->c_ccs);
com->c_ccs = NULL;
if (com->c_flags & RAY_COM_FWOK)
wakeup(com->c_wakeup);
ray_com_runq(sc);
/* XXX what about error on completion then? deal with when i fix
* XXX the status checking
*
* XXX all the runq_done calls from IFF_RUNNING checks in runq
* XXX routines should return EIO but shouldn't abort the runq
*/
}
/*
* Send a command to the ECF.
*/
static void
ray_com_ecf(struct ray_softc *sc, struct ray_comq_entry *com)
{
u_int i;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_COM, "");
RAY_MAP_CM(sc);
#if RAY_DEBUG & RAY_DBG_COM
if (com != TAILQ_FIRST(&sc->sc_comq))
RAY_PANIC(sc, "com and head of queue");
#endif /* RAY_DEBUG & RAY_DBG_COM */
/*
* XXX other drivers did this, but I think
* XXX what we really want to do is just make sure we don't
* XXX get here or that spinning is ok
*
* XXX actually we probably want to call a timeout on
* XXX ourself here...
*/
i = 0;
while (!RAY_ECF_READY(sc))
if (++i > 50)
RAY_PANIC(sc, "spun too long");
else if (i == 1)
RAY_PRINTF(sc, "spinning");
RAY_DCOM(sc, RAY_DBG_COM, com, "sending");
SRAM_WRITE_1(sc, RAY_SCB_CCSI, RAY_CCS_INDEX(com->c_ccs));
RAY_ECF_START_CMD(sc);
if (RAY_COM_NEEDS_TIMO(
SRAM_READ_FIELD_1(sc, com->c_ccs, ray_cmd, c_cmd))) {
RAY_DPRINTF(sc, RAY_DBG_COM, "adding timeout");
sc->com_timerh = timeout(ray_com_ecf_timo, sc, RAY_COM_TIMEOUT);
}
}
/*
* Deal with commands that require a timeout to test completion.
*
* This routine is coded to only expect one outstanding request for the
* timed out requests at a time, but thats all that can be outstanding
* per hardware limitations and all that we issue anyway.
*
* We don't do any fancy testing of the command currently issued as we
* know it must be a timeout based one...unless I've got this wrong!
*/
static void
ray_com_ecf_timo(void *xsc)
{
struct ray_softc *sc = (struct ray_softc *)xsc;
struct ray_comq_entry *com;
u_int8_t cmd;
int s;
s = splnet();
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_COM, "");
RAY_MAP_CM(sc);
com = TAILQ_FIRST(&sc->sc_comq);
#if RAY_DEBUG & RAY_DBG_COM /* XXX get rid of this at some point or make it KASSERT */
if (com == NULL)
RAY_PANIC(sc, "no command queue");
#endif /* RAY_DEBUG & RAY_DBG_COM */
cmd = SRAM_READ_FIELD_1(sc, com->c_ccs, ray_cmd, c_cmd);
switch (SRAM_READ_FIELD_1(sc, com->c_ccs, ray_cmd, c_status)) {
case RAY_CCS_STATUS_COMPLETE:
case RAY_CCS_STATUS_FREE: /* Buggy firmware */
ray_intr_ccs(sc, cmd, com->c_ccs);
break;
case RAY_CCS_STATUS_BUSY:
sc->com_timerh = timeout(ray_com_ecf_timo, sc, RAY_COM_TIMEOUT);
break;
default: /* Replicates NetBSD */
if (sc->sc_ccsinuse[RAY_CCS_INDEX(com->c_ccs)] == 1) {
/* give a chance for the interrupt to occur */
sc->sc_ccsinuse[RAY_CCS_INDEX(com->c_ccs)] = 2;
sc->com_timerh = timeout(ray_com_ecf_timo, sc,
RAY_COM_TIMEOUT);
} else
ray_intr_ccs(sc, cmd, com->c_ccs);
break;
}
splx(s);
}
/*
* Called when interrupt handler for the command has done all it
* needs to. Will be called at splnet.
*/
static void
ray_com_ecf_done(struct ray_softc *sc)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_COM, "");
untimeout(ray_com_ecf_timo, sc, sc->com_timerh);
ray_com_runq_done(sc);
}
#if RAY_DEBUG & RAY_DBG_COM
/*
* Process completed ECF commands that probably came from the command queue
*
* This routine is called after vectoring the completed ECF command
* to the appropriate _done routine. It helps check everything is okay.
*/
static void
ray_com_ecf_check(struct ray_softc *sc, size_t ccs, char *mesg)
{
struct ray_comq_entry *com;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_COM, "%s", mesg);
RAY_MAP_CM(sc);
com = TAILQ_FIRST(&sc->sc_comq);
if (com == NULL)
RAY_PANIC(sc, "no command queue");
if (com->c_ccs != ccs)
RAY_PANIC(sc, "ccs's don't match");
}
#endif /* RAY_DEBUG & RAY_DBG_COM */
/*
* CCS allocators
*/
/*
* Obtain a ccs for a commmand
*
* Returns 0 and in `ccsp' the bus offset of the free ccs. Will block
* awaiting free ccs if needed - if the sleep is interrupted EINTR/ERESTART
* is returned.
*/
static int
ray_ccs_alloc(struct ray_softc *sc, size_t *ccsp, char *wmesg)
{
size_t ccs;
u_int i;
int error;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_CCS, "");
RAY_MAP_CM(sc);
for (;;) {
for (i = RAY_CCS_CMD_FIRST; i <= RAY_CCS_CMD_LAST; i++) {
/* we probe here to make the card go */
(void)SRAM_READ_FIELD_1(sc, RAY_CCS_ADDRESS(i), ray_cmd,
c_status);
if (!sc->sc_ccsinuse[i])
break;
}
if (i > RAY_CCS_CMD_LAST) {
RAY_DPRINTF(sc, RAY_DBG_CCS, "sleeping");
error = tsleep(ray_ccs_alloc, PCATCH, wmesg, 0);
RAY_DPRINTF(sc, RAY_DBG_CCS,
"awakened, tsleep returned 0x%x", error);
if (error)
return (error);
} else
break;
}
RAY_DPRINTF(sc, RAY_DBG_CCS, "allocated 0x%02x", i);
sc->sc_ccsinuse[i] = 1;
ccs = RAY_CCS_ADDRESS(i);
*ccsp = ccs;
return (0);
}
/*
* Fill the easy bits in of a pre-allocated CCS
*/
static void
ray_ccs_fill(struct ray_softc *sc, size_t ccs, u_int cmd)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_CCS, "");
RAY_MAP_CM(sc);
if (ccs == NULL)
RAY_PANIC(sc, "ccs not allocated");
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd, c_status, RAY_CCS_STATUS_BUSY);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd, c_cmd, cmd);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd, c_link, RAY_CCS_LINK_NULL);
}
/*
* Free up a ccs allocated via ray_ccs_alloc
*
* Return the old status. This routine is only used for ccs allocated via
* ray_ccs_alloc (not tx, rx or ECF command requests).
*/
static void
ray_ccs_free(struct ray_softc *sc, size_t ccs)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_CCS, "");
RAY_MAP_CM(sc);
#if 1 | (RAY_DEBUG & RAY_DBG_CCS)
if (!sc->sc_ccsinuse[RAY_CCS_INDEX(ccs)])
RAY_PRINTF(sc, "freeing free ccs 0x%02x", RAY_CCS_INDEX(ccs));
#endif /* RAY_DEBUG & RAY_DBG_CCS */
RAY_CCS_FREE(sc, ccs);
sc->sc_ccsinuse[RAY_CCS_INDEX(ccs)] = 0;
RAY_DPRINTF(sc, RAY_DBG_CCS, "freed 0x%02x", RAY_CCS_INDEX(ccs));
wakeup(ray_ccs_alloc);
}
/*
* Obtain a ccs and tx buffer to transmit with and fill them in.
*
* Returns 0 and in `ccsp' the bus offset of the free ccs. Will not block
* and if none available and will returns EAGAIN.
*
* The caller must fill in the length later.
* The caller must clear the ccs on errors.
*/
static int
ray_ccs_tx(struct ray_softc *sc, size_t *ccsp, size_t *bufpp)
{
size_t ccs, bufp;
int i;
u_int8_t status;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_CCS, "");
RAY_MAP_CM(sc);
i = RAY_CCS_TX_FIRST;
do {
status = SRAM_READ_FIELD_1(sc, RAY_CCS_ADDRESS(i),
ray_cmd, c_status);
if (status == RAY_CCS_STATUS_FREE)
break;
i++;
} while (i <= RAY_CCS_TX_LAST);
if (i > RAY_CCS_TX_LAST) {
return (EAGAIN);
}
RAY_DPRINTF(sc, RAY_DBG_CCS, "allocated 0x%02x", i);
/*
* Reserve and fill the ccs - must do the length later.
*
* Even though build 4 and build 5 have different fields all these
* are common apart from tx_rate. Neither the NetBSD driver or Linux
* driver bother to overwrite this for build 4 cards.
*
* The start of the buffer must be aligned to a 256 byte boundary
* (least significant byte of address = 0x00).
*/
ccs = RAY_CCS_ADDRESS(i);
bufp = RAY_TX_BASE + i * RAY_TX_BUF_SIZE;
bufp += sc->sc_tibsize;
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_status, RAY_CCS_STATUS_BUSY);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_cmd, RAY_CMD_TX_REQ);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_link, RAY_CCS_LINK_NULL);
SRAM_WRITE_FIELD_2(sc, ccs, ray_cmd_tx, c_bufp, bufp);
SRAM_WRITE_FIELD_1(sc,
ccs, ray_cmd_tx, c_tx_rate, sc->sc_c.np_def_txrate);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_apm_mode, 0); /* XXX */
bufp += sizeof(struct ray_tx_phy_header);
*ccsp = ccs;
*bufpp = bufp;
return (0);
}
/*
* Routines to obtain resources for the card
*/
/*
* Allocate the attribute memory on the card
*/
static int
ray_res_alloc_am(struct ray_softc *sc)
{
int error;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_CM, "");
sc->am_rid = 1; /* pccard uses 0 */
sc->am_res = bus_alloc_resource(sc->dev, SYS_RES_MEMORY, &sc->am_rid,
0, ~0, 0x1000, RF_ACTIVE);
if (!sc->am_res) {
RAY_PRINTF(sc, "Cannot allocate attribute memory");
return (ENOMEM);
}
/* Ensure attribute memory settings */
error = CARD_SET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->am_rid, 1); /* XXX card_set_res_flags */
if (error)
RAY_PRINTF(sc, "CARD_SET_RES_FLAGS returned 0x%0x", error);
sc->am_bsh = rman_get_bushandle(sc->am_res);
sc->am_bst = rman_get_bustag(sc->am_res);
#if RAY_DEBUG & (RAY_DBG_CM | RAY_DBG_BOOTPARAM)
{
u_long flags = 0xffff;
CARD_GET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->am_rid, &flags); /* XXX card_get_res_flags */
RAY_PRINTF(sc, "allocated attribute memory:\n"
". start 0x%0lx count 0x%0lx flags 0x%0lx",
bus_get_resource_start(sc->dev, SYS_RES_MEMORY, sc->am_rid),
bus_get_resource_count(sc->dev, SYS_RES_MEMORY, sc->am_rid),
flags);
}
#endif /* RAY_DEBUG & (RAY_DBG_CM | RAY_DBG_BOOTPARAM) */
return (0);
}
/*
* Allocate the common memory on the card
*
* XXX the pccard manager should get this right eventually and allocate it
* XXX for us - that why I'm using rid == 0
* XXX I might end up just setting these using set_start etc.
*/
static int
ray_res_alloc_cm(struct ray_softc *sc)
{
int error;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
sc->cm_rid = 0; /* pccard uses 0 */
sc->cm_res = bus_alloc_resource(sc->dev, SYS_RES_MEMORY, &sc->cm_rid,
0, ~0, 0xc000, RF_ACTIVE);
if (!sc->cm_res) {
RAY_PRINTF(sc, "Cannot allocate common memory");
return (ENOMEM);
}
/* Ensure 8bit access */
error = CARD_SET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->cm_rid, 2); /* XXX card_set_res_flags */
if (error)
RAY_PRINTF(sc, "CARD_SET_RES_FLAGS returned 0x%0x", error);
sc->cm_bsh = rman_get_bushandle(sc->cm_res);
sc->cm_bst = rman_get_bustag(sc->cm_res);
#if RAY_DEBUG & (RAY_DBG_CM | RAY_DBG_BOOTPARAM)
{
u_long flags = 0xffff;
CARD_GET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->cm_rid, &flags); /* XXX card_get_res_flags */
RAY_PRINTF(sc, "allocated common memory:\n"
". start 0x%0lx count 0x%0lx flags 0x%0lx",
bus_get_resource_start(sc->dev, SYS_RES_MEMORY, sc->cm_rid),
bus_get_resource_count(sc->dev, SYS_RES_MEMORY, sc->cm_rid),
flags);
}
#endif /* RAY_DEBUG & (RAY_DBG_CM | RAY_DBG_BOOTPARAM) */
return (0);
}
/*
* Get an irq and attach it to the bus
*/
static int
ray_res_alloc_irq(struct ray_softc *sc)
{
int error;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
sc->irq_rid = 0;
sc->irq_res = bus_alloc_resource(sc->dev, SYS_RES_IRQ, &sc->irq_rid,
0, ~0, 1, RF_ACTIVE);
if (!sc->irq_res) {
RAY_PRINTF(sc, "Cannot allocate irq");
return (ENOMEM);
}
if ((error = bus_setup_intr(sc->dev, sc->irq_res, INTR_TYPE_NET,
ray_intr, sc, &sc->irq_handle)) != 0) {
RAY_PRINTF(sc, "Failed to setup irq");
return (error);
}
RAY_DPRINTF(sc, RAY_DBG_CM | RAY_DBG_BOOTPARAM, "allocated irq:\n"
". start 0x%0lx count 0x%0lx",
bus_get_resource_start(sc->dev, SYS_RES_IRQ, sc->irq_rid),
bus_get_resource_count(sc->dev, SYS_RES_IRQ, sc->irq_rid));
return (0);
}
/*
* Release all of the card's resources
*/
static void
ray_res_release(struct ray_softc *sc)
{
if (sc->irq_res != 0) {
bus_teardown_intr(sc->dev, sc->irq_res, sc->irq_handle);
bus_release_resource(sc->dev, SYS_RES_IRQ,
sc->irq_rid, sc->irq_res);
sc->irq_res = 0;
}
if (sc->am_res != 0) {
bus_release_resource(sc->dev, SYS_RES_MEMORY,
sc->am_rid, sc->am_res);
sc->am_res = 0;
}
if (sc->cm_res != 0) {
bus_release_resource(sc->dev, SYS_RES_MEMORY,
sc->cm_rid, sc->cm_res);
sc->cm_res = 0;
}
}
/*
* Hacks for working around the PCCard layer problems.
*
* For NEWBUS kludge and OLDCARD.
*
* We just call the pccard layer to change and restore the mapping each
* time we use the attribute memory.
*
* XXX These could become marcos around bus_activate_resource, but
* XXX the functions do made hacking them around safer.
*
*/
#if RAY_NEED_CM_REMAPPING
static void
ray_attr_mapam(struct ray_softc *sc)
{
bus_activate_resource(sc->dev, SYS_RES_MEMORY, sc->am_rid, sc->am_res);
#if RAY_DEBUG & RAY_DBG_CM
{
u_long flags = 0xffff;
CARD_GET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->am_rid, &flags); /* XXX card_get_res_flags */
RAY_PRINTF(sc, "attribute memory\n"
". start 0x%0lx count 0x%0lx flags 0x%0lx",
bus_get_resource_start(sc->dev, SYS_RES_MEMORY, sc->am_rid),
bus_get_resource_count(sc->dev, SYS_RES_MEMORY, sc->am_rid),
flags);
}
#endif /* RAY_DEBUG & RAY_DBG_CM */
}
static void
ray_attr_mapcm(struct ray_softc *sc)
{
bus_activate_resource(sc->dev, SYS_RES_MEMORY, sc->cm_rid, sc->cm_res);
#if RAY_DEBUG & RAY_DBG_CM
{
u_long flags = 0xffff;
CARD_GET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->cm_rid, &flags); /* XXX card_get_res_flags */
RAY_PRINTF(sc, "common memory\n"
". start 0x%0lx count 0x%0lx flags 0x%0lx",
bus_get_resource_start(sc->dev, SYS_RES_MEMORY, sc->cm_rid),
bus_get_resource_count(sc->dev, SYS_RES_MEMORY, sc->cm_rid),
flags);
}
#endif /* RAY_DEBUG & RAY_DBG_CM */
}
static u_int8_t
ray_attr_read_1(struct ray_softc *sc, off_t offset)
{
u_int8_t byte;
ray_attr_mapam(sc);
byte = (u_int8_t)bus_space_read_1(sc->am_bst, sc->am_bsh, offset);
ray_attr_mapcm(sc);
return (byte);
}
static void
ray_attr_write_1(struct ray_softc *sc, off_t offset, u_int8_t byte)
{
ray_attr_mapam(sc);
bus_space_write_1(sc->am_bst, sc->am_bsh, offset, byte);
ray_attr_mapcm(sc);
}
#endif /* RAY_NEED_CM_REMAPPING */
/*
* mbuf dump
*/
#if RAY_DEBUG & RAY_DBG_MBUF
static void
ray_dump_mbuf(struct ray_softc *sc, struct mbuf *m, char *s)
{
u_int8_t *d, *ed;
u_int i;
char p[17];
RAY_PRINTF(sc, "%s", s);
i = 0;
bzero(p, 17);
for (; m; m = m->m_next) {
d = mtod(m, u_int8_t *);
ed = d + m->m_len;
for (; d < ed; i++, d++) {
if ((i % 16) == 0) {
printf(" %s\n\t", p);
} else if ((i % 8) == 0)
printf(" ");
printf(" %02x", *d);
p[i % 16] = ((*d >= 0x20) && (*d < 0x80)) ? *d : '.';
}
}
if ((i - 1) % 16)
printf(" %s\n", p);
}
#endif /* RAY_DEBUG & RAY_DBG_MBUF */
#endif /* NRAY */
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