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freebsd-skq/sys/dev/ray/if_ray.c
imp 4e70215e6b Make sure that we call if_free(ifp) after bus_teardown_intr. Since we 
could get an interrupt after we free the ifp, and the interrupt
handler depended on the ifp being still alive, this could, in theory,
cause a crash.  Eliminate this possibility by moving the if_free to
after the bus_teardown_intr() call.
2005-09-19 03:10:21 +00:00

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/* $NetBSD: if_ray.c,v 1.12 2000/02/07 09:36:27 augustss Exp $ */
/*-
* 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.
*
*
*/
/*-
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* Card configuration
* ==================
*
* This card is unusual in that it uses both common and attribute
* memory whilst working. It should use common memory and an IO port.
*
* The bus resource allocations need to work around 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 in the
* same pccard slot as currently old mappings are not cleaned up very well
* by the bus_release_resource methods or pccardd.
*
* There is no support for running this driver on 4.0.
*
* Ad-hoc and infra-structure modes
* ================================
*
* The driver supports ad-hoc mode for V4 firmware and infrastructure
* mode for V5 firmware. V5 firmware in ad-hoc mode is untested and should
* work.
*
* 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/translation
* ========================================
*
* Currently we support the Webgear encapsulation:
* 802.11 header <net/if_ieee80211.h>struct ieee80211_frame
* 802.3 header <net/ethernet.h>struct ether_header
* IP/ARP payload
*
* and RFC1042 encapsulation of IP datagrams (translation):
* 802.11 header <net/if_ieee80211.h>struct ieee80211_frame
* 802.2 LLC header
* 802.2 SNAP header
* 802.3 Ethertype
* IP/ARP payload
*
* Framing should be selected via if_media stuff or link types but
* is currently hardcoded to:
* V4 encapsulation
* V5 translation
*
*
* 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!
*/
/*
* ***check all XXX_INFRA code - reassoc not done well at all!
* ***watchdog to catch screwed up removals?
* ***error handling of RAY_COM_RUNQ
* ***error handling of ECF command completions
* ***can't seem to create a n/w that Win95 wants to see.
* ***remove panic in ray_com_ecf by re-quing or timeout
* ***use new ioctl stuff - probably need to change RAY_COM_FCHKRUNNING things?
* consider user doing:
* ifconfig ray0 192.168.200.38 -bssid "freed"
* ifconfig ray0 192.168.200.38 -bssid "fred"
* here the second one would be missed in this code
* check that v5 needs timeouts on ecf commands
* write up driver structure in comments above
* UPDATE_PARAMS seems to return via an interrupt - maybe the timeout
* is needed for wrong values?
* proper setting of mib_hop_seq_len with country code for v4 firmware
* best done with raycontrol?
* countrycode setting is broken I think
* userupdate should trap and do via startjoin etc.
* fragmentation when rx level drops?
* v5 might not need download
* defaults are as documented apart from hop_seq_length
* settings are sane for ad-hoc not infra
*
* driver state
* most state is implied by the sequence of commands in the runq
* but in fact any of the rx and tx path that uses variables
* in the sc_c are potentially going to get screwed?
*
* 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
* need to finish RAY_ECMD_REJOIN_DONE
* finish authenitcation code, it doesn't handle errors/timeouts/
* REJOIN etc.
*
* ray_nw_param
* promisc in here too? - done
* should be able to update the parameters before we download to the
* device. This means we must attach a desired struct to the
* runq entry and maybe have another big case statement to
* move these desired into current when not running.
* init must then use the current settings (pre-loaded
* in attach now!) and pass to download. But we can't access
* current nw params outside of the runq - ahhh
* differeniate between parameters set in attach 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?
* longer term need to attach a desired nw params to the runq entry
*
*
* RAY_COM_RUNQ errors
*
* 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 - done in macro
*
* 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 - done in macro
*/
#define XXX 0
#define XXX_ACTING_AP 0
#define XXX_INFRA 0
#define RAY_DEBUG ( \
/* RAY_DBG_AUTH | */ \
/* 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 | */ \
/* RAY_DBG_DCOM | */ \
0 \
)
/*
* XXX build options - move to LINT
*/
#define RAY_CM_RID 0 /* pccardd abuses windows 0 and 1 */
#define RAY_AM_RID 3 /* pccardd abuses windows 0 and 1 */
#define RAY_COM_TIMEOUT (hz/2) /* Timeout for CCS commands */
#define RAY_TX_TIMEOUT (hz/2) /* Timeout for rescheduling TX */
#define RAY_ECF_SPIN_DELAY 1000 /* Wait 1ms before checking ECF ready */
#define RAY_ECF_SPIN_TRIES 10 /* Wait this many times for ECF ready */
/*
* XXX build options - move to LINT
*/
#ifndef RAY_DEBUG
#define RAY_DEBUG 0x0000
#endif /* RAY_DEBUG */
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/limits.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <net/bpf.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_dl.h>
#include <net80211/ieee80211.h>
#include <net/if_llc.h>
#include <net/if_types.h>
#include <dev/pccard/pccardvar.h>
#include "card_if.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>
static MALLOC_DEFINE(M_RAYCOM, "raycom", "Raylink command queue entry");
/*
* 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 void ray_init (void *xsc);
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, u_int8_t status, size_t ccs);
static void ray_init_auth (struct ray_softc *sc, struct ray_comq_entry *com);
static int ray_init_auth_send (struct ray_softc *sc, u_int8_t *dst, int sequence);
static void ray_init_auth_done (struct ray_softc *sc, u_int8_t status);
static void ray_init_download (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_init_download_done (struct ray_softc *sc, u_int8_t status, size_t ccs);
static void ray_init_download_v4 (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_init_download_v5 (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_init_mcast (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_init_sj (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_init_sj_done (struct ray_softc *sc, u_int8_t status, size_t ccs);
static void ray_intr (void *xsc);
static void ray_intr_ccs (struct ray_softc *sc, u_int8_t cmd, u_int8_t status, 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 void ray_mcast (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_mcast_done (struct ray_softc *sc, u_int8_t status, 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 void ray_repparams (struct ray_softc *sc, struct ray_comq_entry *com);
static void ray_repparams_done (struct ray_softc *sc, u_int8_t status, 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 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_data (struct ray_softc *sc, struct mbuf *m0, u_int8_t siglev, u_int8_t antenna);
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_mgt_beacon (struct ray_softc *sc, struct mbuf *m0);
static void ray_rx_mgt_info (struct ray_softc *sc, struct mbuf *m0, union ieee80211_information *elements);
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, u_int8_t status, size_t ccs);
static void ray_tx_timo (void *xsc);
static int ray_tx_send (struct ray_softc *sc, size_t ccs, int 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, u_int8_t status, 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 */
/*
* 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.
*/
error = ray_res_alloc_cm(sc);
if (error)
return (error);
error = ray_res_alloc_am(sc);
if (error) {
ray_res_release(sc);
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->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;
size_t ccs;
int i, error;
ifp = sc->ifp = if_alloc(IFT_ETHER);
if (ifp == NULL)
return (ENOSPC);
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
if ((sc == NULL) || (sc->sc_gone)) {
if_free(ifp);
return (ENXIO);
}
/*
* Grab the resources I need
*/
error = ray_res_alloc_cm(sc);
if (error) {
if_free(ifp);
return (error);
}
error = ray_res_alloc_am(sc);
if (error) {
if_free(ifp);
ray_res_release(sc);
return (error);
}
error = ray_res_alloc_irq(sc);
if (error) {
if_free(ifp);
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);
bzero(&sc->sc_d, sizeof(struct ray_nw_param));
bzero(&sc->sc_c, sizeof(struct ray_nw_param));
/* Clear statistics counters */
sc->sc_rxoverflow = 0;
sc->sc_rxcksum = 0;
sc->sc_rxhcksum = 0;
sc->sc_rxnoise = 0;
/* Clear signal and antenna cache */
bzero(sc->sc_siglevs, sizeof(sc->sc_siglevs));
/* 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
*/
ifp->if_softc = sc;
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
ifp->if_timer = 0;
ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST |
IFF_NEEDSGIANT);
ifp->if_hdrlen = sizeof(struct ieee80211_frame) +
sizeof(struct ether_header);
ifp->if_baudrate = 1000000; /* Is this baud or bps ;-) */
ifp->if_start = ray_tx;
ifp->if_ioctl = ray_ioctl;
ifp->if_watchdog = ray_watchdog;
ifp->if_init = ray_init;
ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
ether_ifattach(ifp, ep->e_station_addr);
/*
* Initialise the timers and driver
*/
callout_handle_init(&sc->com_timerh);
callout_handle_init(&sc->tx_timerh);
TAILQ_INIT(&sc->sc_comq);
/*
* 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->ifp;
struct ray_comq_entry *com;
int s;
s = splimp();
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STOP, "");
if ((sc == NULL) || (sc->sc_gone))
return (0);
/*
* Mark as not running and detach the interface.
*
* N.B. if_detach can trigger ioctls so we do it first and
* then clean the runq.
*/
sc->sc_gone = 1;
sc->sc_c.np_havenet = 0;
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
ether_ifdetach(ifp);
/*
* Stop the runq and wake up anyone sleeping for us.
*/
untimeout(ray_com_ecf_timo, sc, sc->com_timerh);
untimeout(ray_tx_timo, sc, sc->tx_timerh);
com = TAILQ_FIRST(&sc->sc_comq);
TAILQ_FOREACH(com, &sc->sc_comq, c_chain) {
com->c_flags |= RAY_COM_FDETACHED;
com->c_retval = 0;
RAY_DPRINTF(sc, RAY_DBG_STOP, "looking at com %p %b",
com, com->c_flags, RAY_COM_FLAGS_PRINTFB);
if (com->c_flags & RAY_COM_FWOK) {
RAY_DPRINTF(sc, RAY_DBG_STOP, "waking com %p", com);
wakeup(com->c_wakeup);
}
}
/*
* Release resources
*/
ray_res_release(sc);
if_free(ifp);
RAY_DPRINTF(sc, RAY_DBG_STOP, "unloading complete");
splx(s);
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;
int s, error, error2;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_IOCTL, "");
if ((sc == NULL) || (sc->sc_gone))
return (ENXIO);
error = error2 = 0;
s = splimp();
switch (command) {
case SIOCSIFFLAGS:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "SIFFLAGS 0x%0x", ifp->if_flags);
/*
* If the interface is marked up we call ray_init_user.
* This will deal with mcast and promisc flags as well as
* initialising the hardware if it needs it.
*/
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:
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "OTHER (pass to ether)");
error = ether_ioctl(ifp, command, data);
break;
}
splx(s);
return (error);
}
/*
* Ethernet layer entry to ray_init - discard errors
*/
static void
ray_init(void *xsc)
{
struct ray_softc *sc = (struct ray_softc *)xsc;
ray_init_user(sc);
}
/*
* User land entry to network initialisation and changes in interface flags.
*
* We do a very little work here, just creating runq entries to
* processes the actions needed to cope with interface flags. We do it
* this way in case there are runq entries outstanding from earlier
* ioctls that modify the interface flags.
*
* Returns values are either 0 for success, a varity of resource allocation
* failures or errors in the command sent to the card.
*
* Note, IFF_DRV_RUNNING is eventually set by init_sj_done or init_assoc_done
*/
static int
ray_init_user(struct ray_softc *sc)
{
struct ray_comq_entry *com[6];
int error, ncom;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
/*
* Create the following runq entries to bring the card up.
*
* init_download - download the network to the card
* init_mcast - reset multicast list
* init_sj - find or start a BSS
* init_auth - authenticate with an ESSID if needed
* init_assoc - associate with an ESSID if needed
*
* They are only actually executed if the card is not running.
* We may enter this routine from a simple change of IP
* address and do not need to get the card to do these things.
* However, we cannot perform the check here as there may be
* commands in the runq that change the IFF_DRV_RUNNING state of
* the interface.
*/
ncom = 0;
com[ncom++] = RAY_COM_MALLOC(ray_init_download, RAY_COM_FCHKRUNNING);
com[ncom++] = RAY_COM_MALLOC(ray_init_mcast, RAY_COM_FCHKRUNNING);
com[ncom++] = RAY_COM_MALLOC(ray_init_sj, RAY_COM_FCHKRUNNING);
com[ncom++] = RAY_COM_MALLOC(ray_init_auth, RAY_COM_FCHKRUNNING);
com[ncom++] = RAY_COM_MALLOC(ray_init_assoc, RAY_COM_FCHKRUNNING);
/*
* Create runq entries to process flags
*
* promisc - set/reset PROMISC and ALLMULTI flags
*
* They are only actually executed if the card is running
*/
com[ncom++] = RAY_COM_MALLOC(ray_promisc, 0);
RAY_COM_RUNQ(sc, com, ncom, "rayinit", error);
/* XXX no real error processing from anything yet! */
RAY_COM_FREE(com, ncom);
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->ifp;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
/* If the card already running we might not need to download */
RAY_COM_CHKRUNNING(sc, com, ifp);
/*
* 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.
*
*/
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;
bzero(sc->sc_d.np_ssid, IEEE80211_NWID_LEN);
if (sc->sc_version == RAY_ECFS_BUILD_4) {
sc->sc_d.np_net_type = RAY_MIB_NET_TYPE_V4;
strncpy(sc->sc_d.np_ssid, RAY_MIB_SSID_V4, IEEE80211_NWID_LEN);
sc->sc_d.np_ap_status = RAY_MIB_AP_STATUS_V4;
sc->sc_d.np_framing = RAY_FRAMING_ENCAPSULATION;
} else {
sc->sc_d.np_net_type = RAY_MIB_NET_TYPE_V5;
strncpy(sc->sc_d.np_ssid, RAY_MIB_SSID_V5, IEEE80211_NWID_LEN);
sc->sc_d.np_ap_status = RAY_MIB_AP_STATUS_V5;
sc->sc_d.np_framing = RAY_FRAMING_TRANSLATION;
}
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_d.np_promisc = !!(ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI));
/* XXX this is a hack whilst I transition the code. The instance
* XXX variables above should be set somewhere else. This is needed for
* XXX start_join */
bcopy(&sc->sc_d, &com->c_desired, sizeof(struct ray_nw_param));
/*
* Download the right firmware defaults
*/
if (sc->sc_version == RAY_ECFS_BUILD_4)
ray_init_download_v4(sc, com);
else
ray_init_download_v5(sc, com);
/*
* 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_comq_entry *com)
{
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) = com->c_desired.np_net_type;
MIB4(mib_ap_status) = com->c_desired.np_ap_status;
bcopy(com->c_desired.np_ssid, MIB4(mib_ssid), IEEE80211_NWID_LEN);
MIB4(mib_scan_mode) = RAY_MIB_SCAN_MODE_V4;
MIB4(mib_apm_mode) = RAY_MIB_APM_MODE_V4;
bcopy(sc->sc_station_addr, MIB4(mib_mac_addr), ETHER_ADDR_LEN);
PUT2(MIB4(mib_frag_thresh), RAY_MIB_FRAG_THRESH_V4);
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_V4;
MIB4(mib_max_retry) = RAY_MIB_MAX_RETRY_V4;
MIB4(mib_ack_timo) = RAY_MIB_ACK_TIMO_V4;
MIB4(mib_sifs) = RAY_MIB_SIFS_V4;
MIB4(mib_difs) = RAY_MIB_DIFS_V4;
MIB4(mib_pifs) = RAY_MIB_PIFS_V4;
PUT2(MIB4(mib_rts_thresh), RAY_MIB_RTS_THRESH_V4);
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_V4;
MIB4(mib_adhoc_scan_cycle) = RAY_MIB_ADHOC_SCAN_CYCLE_V4;
MIB4(mib_infra_scan_cycle) = RAY_MIB_INFRA_SCAN_CYCLE_V4;
MIB4(mib_infra_super_scan_cycle)
= RAY_MIB_INFRA_SUPER_SCAN_CYCLE_V4;
MIB4(mib_promisc) = com->c_desired.np_promisc;
PUT2(MIB4(mib_uniq_word), RAY_MIB_UNIQ_WORD_V4);
MIB4(mib_slot_time) = RAY_MIB_SLOT_TIME_V4;
MIB4(mib_roam_low_snr_thresh) = RAY_MIB_ROAM_LOW_SNR_THRESH_V4;
MIB4(mib_low_snr_count) = RAY_MIB_LOW_SNR_COUNT_V4;
MIB4(mib_infra_missed_beacon_count)
= RAY_MIB_INFRA_MISSED_BEACON_COUNT_V4;
MIB4(mib_adhoc_missed_beacon_count)
= RAY_MIB_ADHOC_MISSED_BEACON_COUNT_V4;
MIB4(mib_country_code) = RAY_MIB_COUNTRY_CODE_V4;
MIB4(mib_hop_seq) = RAY_MIB_HOP_SEQ_V4;
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_comq_entry *com)
{
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) = com->c_desired.np_net_type;
MIB5(mib_ap_status) = com->c_desired.np_ap_status;
bcopy(com->c_desired.np_ssid, MIB5(mib_ssid), IEEE80211_NWID_LEN);
MIB5(mib_scan_mode) = RAY_MIB_SCAN_MODE_V5;
MIB5(mib_apm_mode) = RAY_MIB_APM_MODE_V5;
bcopy(sc->sc_station_addr, MIB5(mib_mac_addr), ETHER_ADDR_LEN);
PUT2(MIB5(mib_frag_thresh), RAY_MIB_FRAG_THRESH_V5);
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_V5;
MIB5(mib_max_retry) = RAY_MIB_MAX_RETRY_V5;
MIB5(mib_ack_timo) = RAY_MIB_ACK_TIMO_V5;
MIB5(mib_sifs) = RAY_MIB_SIFS_V5;
MIB5(mib_difs) = RAY_MIB_DIFS_V5;
MIB5(mib_pifs) = RAY_MIB_PIFS_V5;
PUT2(MIB5(mib_rts_thresh), RAY_MIB_RTS_THRESH_V5);
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_V5;
MIB5(mib_adhoc_scan_cycle) = RAY_MIB_ADHOC_SCAN_CYCLE_V5;
MIB5(mib_infra_scan_cycle) = RAY_MIB_INFRA_SCAN_CYCLE_V5;
MIB5(mib_infra_super_scan_cycle)
= RAY_MIB_INFRA_SUPER_SCAN_CYCLE_V5;
MIB5(mib_promisc) = com->c_desired.np_promisc;
PUT2(MIB5(mib_uniq_word), RAY_MIB_UNIQ_WORD_V5);
MIB5(mib_slot_time) = RAY_MIB_SLOT_TIME_V5;
MIB5(mib_roam_low_snr_thresh) = RAY_MIB_ROAM_LOW_SNR_THRESH_V5;
MIB5(mib_low_snr_count) = RAY_MIB_LOW_SNR_COUNT_V5;
MIB5(mib_infra_missed_beacon_count)
= RAY_MIB_INFRA_MISSED_BEACON_COUNT_V5;
MIB5(mib_adhoc_missed_beacon_count)
= RAY_MIB_ADHOC_MISSED_BEACON_COUNT_V5;
MIB5(mib_country_code) = RAY_MIB_COUNTRY_CODE_V5;
MIB5(mib_hop_seq) = RAY_MIB_HOP_SEQ_V5;
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) = com->c_desired.np_priv_start;
MIB5(mib_privacy_can_join) = com->c_desired.np_priv_join;
MIB5(mib_basic_rate_set[0]) = com->c_desired.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, u_int8_t status, size_t ccs)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_COM_CHECK(sc, ccs);
RAY_CCSERR(sc, status, if_oerrors); /* XXX error counter */
ray_com_ecf_done(sc);
}
/*
* Runq entry to empty the multicast filter list
*/
static void
ray_init_mcast(struct ray_softc *sc, struct ray_comq_entry *com)
{
struct ifnet *ifp = sc->ifp;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_MAP_CM(sc);
/* If the card already running we might not need to reset the list */
RAY_COM_CHKRUNNING(sc, com, ifp);
/*
* Kick the card
*/
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, 0);
ray_com_ecf(sc, com);
}
/*
* 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->ifp;
struct ray_net_params np;
int update;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_MAP_CM(sc);
/* If the card already running we might not need to start the n/w */
RAY_COM_CHKRUNNING(sc, com, ifp);
/*
* Set up the right start or join command and determine
* whether we should tell the card about a change in operating
* parameters.
*/
sc->sc_c.np_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, u_int8_t status, size_t ccs)
{
struct ifnet *ifp = sc->ifp;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_MAP_CM(sc);
RAY_COM_CHECK(sc, ccs);
RAY_CCSERR(sc, status, if_oerrors); /* XXX error counter */
/*
* 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 firmware */
if (sc->sc_c.np_inited == 0x55)
sc->sc_c.np_inited = 0;
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_DRV_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_c.np_havenet = 1;
sc->sc_c.np_framing = sc->sc_d.np_framing;
ifp->if_drv_flags |= IFF_DRV_RUNNING;
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
}
ray_com_ecf_done(sc);
}
/*
* Runq entry to authenticate with an access point or another station
*/
static void
ray_init_auth(struct ray_softc *sc, struct ray_comq_entry *com)
{
struct ifnet *ifp = sc->ifp;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN | RAY_DBG_AUTH, "");
/* If card already running we might not need to authenticate */
RAY_COM_CHKRUNNING(sc, com, ifp);
/*
* Don't do anything if we are not in a managed network
*
* XXX V4 adhoc does not need this, V5 adhoc unknown
*/
if (sc->sc_c.np_net_type != RAY_MIB_NET_TYPE_INFRA) {
ray_com_runq_done(sc);
return;
}
/*
* XXX_AUTH need to think of run queue when doing auths from request i.e. would
* XXX_AUTH need to have auth at top of runq?
* XXX_AUTH ditto for sending any auth response packets...what about timeouts?
*/
/*
* Kick the card
*/
/* XXX_AUTH check exit status and retry or fail as we can't associate without this */
ray_init_auth_send(sc, sc->sc_c.np_bss_id, IEEE80211_AUTH_OPEN_REQUEST);
}
/*
* Build and send an authentication packet
*
* If an error occurs, returns 1 else returns 0.
*/
static int
ray_init_auth_send(struct ray_softc *sc, u_int8_t *dst, int sequence)
{
size_t ccs, bufp;
int pktlen = 0;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN | RAY_DBG_AUTH, "");
/* Get a control block */
if (ray_ccs_tx(sc, &ccs, &bufp)) {
RAY_RECERR(sc, "could not obtain a ccs");
return (1);
}
/* Fill the header in */
bufp = ray_tx_wrhdr(sc, bufp,
IEEE80211_FC0_TYPE_MGT | IEEE80211_FC0_SUBTYPE_AUTH,
IEEE80211_FC1_DIR_NODS,
dst,
IFP2ENADDR(sc->ifp),
sc->sc_c.np_bss_id);
/* Add algorithm number */
SRAM_WRITE_1(sc, bufp + pktlen++, IEEE80211_AUTH_ALG_OPEN);
SRAM_WRITE_1(sc, bufp + pktlen++, 0);
/* Add sequence number */
SRAM_WRITE_1(sc, bufp + pktlen++, sequence);
SRAM_WRITE_1(sc, bufp + pktlen++, 0);
/* Add status code */
SRAM_WRITE_1(sc, bufp + pktlen++, 0);
SRAM_WRITE_1(sc, bufp + pktlen++, 0);
pktlen += sizeof(struct ieee80211_frame);
return (ray_tx_send(sc, ccs, pktlen, dst));
}
/*
* Complete authentication runq
*/
static void
ray_init_auth_done(struct ray_softc *sc, u_int8_t status)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN | RAY_DBG_AUTH, "");
if (status != IEEE80211_STATUS_SUCCESS)
RAY_RECERR(sc, "authentication failed with status %d", status);
/*
* XXX_AUTH retry? if not just recall ray_init_auth_send and dont clear runq?
* XXX_AUTH association requires that authenitcation is successful
* XXX_AUTH before we associate, and the runq is the only way to halt the
* XXX_AUTH progress of associate.
* XXX_AUTH In this case I might not need the RAY_AUTH_NEEDED state
*/
ray_com_runq_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->ifp;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
/* If the card already running we might not need to associate */
RAY_COM_CHKRUNNING(sc, com, ifp);
/*
* Don't do anything if we are not in a managed network
*/
if (sc->sc_c.np_net_type != RAY_MIB_NET_TYPE_INFRA) {
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, u_int8_t status, size_t ccs)
{
struct ifnet *ifp = sc->ifp;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_COM_CHECK(sc, ccs);
RAY_CCSERR(sc, status, if_oerrors); /* XXX error counter */
/*
* Hurrah! The network is now active.
*
* Clearing IFF_DRV_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_c.np_havenet = 1;
sc->sc_c.np_framing = sc->sc_d.np_framing;
ifp->if_drv_flags |= IFF_DRV_RUNNING;
ifp->if_drv_flags &= ~IFF_DRV_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, ncom;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STOP, "");
/*
* Schedule the real stop routine
*/
ncom = 0;
com[ncom++] = RAY_COM_MALLOC(ray_stop, 0);
RAY_COM_RUNQ(sc, com, ncom, "raystop", error);
/* XXX no real error processing from anything yet! */
RAY_COM_FREE(com, ncom);
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->ifp;
struct mbuf *m;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STOP, "");
/*
* Mark as not running and drain output queue
*/
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
ifp->if_timer = 0;
for (;;) {
IF_DEQUEUE(&ifp->if_snd, m);
if (m == NULL)
break;
m_freem(m);
}
ray_com_runq_done(sc);
}
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 == NULL) || (sc->sc_gone))
return;
RAY_PRINTF(sc, "watchdog timeout");
}
/*
* 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_DRV_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.
*
* AST J30 Windows 95A (100MHz Pentium) to
* Libretto 50CT FreeBSD-3.1 (75MHz Pentium) 167.37kB/s
* Nonname box FreeBSD-3.4 (233MHz AMD K6) 161.82kB/s
*
* Libretto 50CT 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.
*
* In short I'm happy that the added complexity of chaining TX
* packets together isn't worth it for my machines.
*/
static void
ray_tx(struct ifnet *ifp)
{
struct ray_softc *sc = ifp->if_softc;
struct mbuf *m0, *m;
struct ether_header *eh;
struct llc *llc;
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 == NULL) || (sc->sc_gone))
return;
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
RAY_RECERR(sc, "cannot transmit - not running");
return;
}
if (!sc->sc_c.np_havenet) {
RAY_RECERR(sc, "cannot transmit - no network");
return;
}
if (!RAY_ECF_READY(sc)) {
/* Can't assume that the ECF is busy because of this driver */
if ((sc->tx_timerh.callout == NULL) ||
(!callout_active(sc->tx_timerh.callout))) {
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_drv_flags |= IFF_DRV_OACTIVE;
return;
}
/*
* Get the mbuf and process it - we have to remember to free the
* ccs if there are any errors.
*/
IF_DEQUEUE(&ifp->if_snd, m0);
if (m0 == NULL) {
RAY_CCS_FREE(sc, ccs);
return;
}
pktlen = m0->m_pkthdr.len;
if (pktlen > ETHER_MAX_LEN - ETHER_CRC_LEN) {
RAY_RECERR(sc, "mbuf too long %d", pktlen);
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
m_freem(m0);
return;
}
m0 = m_pullup(m0, sizeof(struct ether_header));
if (m0 == NULL) {
RAY_RECERR(sc, "could not pullup ether");
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
return;
}
eh = mtod(m0, struct ether_header *);
/*
* Write the 802.11 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_DIR_NODS,
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_DIR_TODS,
sc->sc_c.np_bss_id,
eh->ether_shost,
eh->ether_dhost);
else
bufp = ray_tx_wrhdr(sc, bufp,
IEEE80211_FC0_TYPE_DATA,
IEEE80211_FC1_DIR_FROMDS,
eh->ether_dhost,
sc->sc_c.np_bss_id,
eh->ether_shost);
/*
* Framing
*
* Add to the mbuf.
*/
switch (sc->sc_c.np_framing) {
case RAY_FRAMING_ENCAPSULATION:
/* Nice and easy - nothing! (just add an 802.11 header) */
break;
case RAY_FRAMING_TRANSLATION:
/*
* Drop the first address in the ethernet header and
* write an LLC and SNAP header over the second.
*/
m_adj(m0, ETHER_ADDR_LEN);
if (m0 == NULL) {
RAY_RECERR(sc, "could not get space for 802.2 header");
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
return;
}
llc = mtod(m0, struct llc *);
llc->llc_dsap = LLC_SNAP_LSAP;
llc->llc_ssap = LLC_SNAP_LSAP;
llc->llc_control = LLC_UI;
llc->llc_un.type_snap.org_code[0] = 0;
llc->llc_un.type_snap.org_code[1] = 0;
llc->llc_un.type_snap.org_code[2] = 0;
break;
default:
RAY_RECERR(sc, "unknown framing type %d", sc->sc_c.np_framing);
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
m_freem(m0);
return;
}
if (m0 == NULL) {
RAY_RECERR(sc, "could not frame packet");
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
return;
}
RAY_MBUF_DUMP(sc, RAY_DBG_TX, m0, "framed packet");
/*
* Copy the mbuf to the buffer in common memory
*
* We drop 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_frame);
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_RECERR(sc, "tx buffer overflow");
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
m_freem(m0);
return;
}
bufp += len;
}
/*
* 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->ifp;
int s;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
if (!(ifp->if_drv_flags & IFF_DRV_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_frame header;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_TX, "");
RAY_MAP_CM(sc);
bzero(&header, sizeof(struct ieee80211_frame));
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_frame));
return (bufp + sizeof(struct ieee80211_frame));
}
/*
* 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, int pktlen, u_int8_t *dst)
{
int i = 0;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_TX, "");
RAY_MAP_CM(sc);
while (!RAY_ECF_READY(sc)) {
DELAY(RAY_ECF_SPIN_DELAY);
if (++i > RAY_ECF_SPIN_TRIES) {
RAY_RECERR(sc, "ECF busy, dropping packet");
RAY_CCS_FREE(sc, ccs);
return (1);
}
}
if (i != 0)
RAY_RECERR(sc, "spun %d times", i);
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, "");
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 that 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, u_int8_t status, size_t ccs)
{
struct ifnet *ifp = sc->ifp;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_TX, "");
RAY_CCSERR(sc, status, if_oerrors);
RAY_CCS_FREE(sc, ccs);
ifp->if_timer = 0;
if (ifp->if_drv_flags & IFF_DRV_OACTIVE)
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
}
/*
* Receiver packet handling
*/
/*
* Receive a packet from the card
*/
static void
ray_rx(struct ray_softc *sc, size_t rcs)
{
struct ieee80211_frame *header;
struct ifnet *ifp = sc->ifp;
struct mbuf *m0;
size_t pktlen, fraglen, readlen, tmplen;
size_t bufp, ebufp;
u_int8_t siglev, antenna;
u_int first, ni, i;
u_int8_t *mp;
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_frame))) {
RAY_RECERR(sc, "packet too big or too small");
ifp->if_ierrors++;
goto skip_read;
}
MGETHDR(m0, M_DONTWAIT, MT_DATA);
if (m0 == NULL) {
RAY_RECERR(sc, "MGETHDR failed");
ifp->if_ierrors++;
goto skip_read;
}
if (pktlen > MHLEN) {
MCLGET(m0, M_DONTWAIT);
if (!(m0->m_flags & M_EXT)) {
RAY_RECERR(sc, "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;
mp = 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);
if (fraglen + readlen > pktlen) {
RAY_RECERR(sc, "bad length current 0x%zx pktlen 0x%zx",
fraglen + readlen, pktlen);
ifp->if_ierrors++;
m_freem(m0);
m0 = NULL;
goto skip_read;
}
if ((i < RAY_RCS_FIRST) || (i > RAY_RCS_LAST)) {
RAY_RECERR(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, mp, fraglen);
else {
SRAM_READ_REGION(sc, bufp, mp,
(tmplen = RAY_RX_END - bufp));
SRAM_READ_REGION(sc, RAY_RX_BASE, mp + tmplen,
ebufp - RAY_RX_END);
}
mp += 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 and hand off to
* appropriate functions.
*/
header = mtod(m0, struct ieee80211_frame *);
if ((header->i_fc[0] & IEEE80211_FC0_VERSION_MASK)
!= IEEE80211_FC0_VERSION_0) {
RAY_RECERR(sc, "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_DATA:
ray_rx_data(sc, m0, siglev, antenna);
break;
case IEEE80211_FC0_TYPE_MGT:
ray_rx_mgt(sc, m0);
break;
case IEEE80211_FC0_TYPE_CTL:
ray_rx_ctl(sc, m0);
break;
default:
RAY_RECERR(sc, "unknown packet fc0 0x%x", header->i_fc[0]);
ifp->if_ierrors++;
m_freem(m0);
}
}
/*
* Deal with DATA packet types
*/
static void
ray_rx_data(struct ray_softc *sc, struct mbuf *m0, u_int8_t siglev, u_int8_t antenna)
{
struct ifnet *ifp = sc->ifp;
struct ieee80211_frame *header = mtod(m0, struct ieee80211_frame *);
struct llc *llc;
u_int8_t *sa = NULL, *da = NULL, *ra = NULL, *ta = NULL;
int trim = 0;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_RX, "");
/*
* 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:
case IEEE80211_FC0_SUBTYPE_CF_ACK:
case IEEE80211_FC0_SUBTYPE_CF_POLL:
case IEEE80211_FC0_SUBTYPE_CF_ACPL:
RAY_DPRINTF(sc, RAY_DBG_RX, "DATA packet");
break;
case IEEE80211_FC0_SUBTYPE_NODATA:
case IEEE80211_FC0_SUBTYPE_CFACK:
case IEEE80211_FC0_SUBTYPE_CFPOLL:
case IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK:
RAY_DPRINTF(sc, RAY_DBG_RX, "NULL packet");
m_freem(m0);
return;
break;
default:
RAY_RECERR(sc, "reserved DATA packet subtype 0x%x",
header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
ifp->if_ierrors++;
m_freem(m0);
return;
}
/*
* Parse the To DS and From DS fields to determine the length
* of the 802.11 header for use later on.
*
* Additionally, furtle out the right destination and
* source MAC addresses for the packet. Packets may come via
* APs so the MAC addresses of the immediate node may be
* different from the node that actually sent us the packet.
*
* da destination address of final recipient
* sa source address of orginator
* ra receiver address of immediate recipient
* ta transmitter address of immediate orginator
*
* Address matching is performed on da or sa with the AP or
* BSSID in ra and ta.
*/
RAY_MBUF_DUMP(sc, RAY_DBG_RX, m0, "(1) packet before framing");
switch (header->i_fc[1] & IEEE80211_FC1_DIR_MASK) {
case IEEE80211_FC1_DIR_NODS:
da = ra = header->i_addr1;
sa = ta = header->i_addr2;
trim = sizeof(struct ieee80211_frame);
RAY_DPRINTF(sc, RAY_DBG_RX, "from %6D to %6D",
sa, ":", da, ":");
break;
case IEEE80211_FC1_DIR_FROMDS:
da = ra = header->i_addr1;
ta = header->i_addr2;
sa = header->i_addr3;
trim = sizeof(struct ieee80211_frame);
RAY_DPRINTF(sc, RAY_DBG_RX, "ap %6D from %6D to %6D",
ta, ":", sa, ":", da, ":");
break;
case IEEE80211_FC1_DIR_TODS:
ra = header->i_addr1;
sa = ta = header->i_addr2;
da = header->i_addr3;
trim = sizeof(struct ieee80211_frame);
RAY_DPRINTF(sc, RAY_DBG_RX, "from %6D to %6D ap %6D",
sa, ":", da, ":", ra, ":");
break;
case IEEE80211_FC1_DIR_DSTODS:
ra = header->i_addr1;
ta = header->i_addr2;
da = header->i_addr3;
sa = (u_int8_t *)header+1;
trim = sizeof(struct ieee80211_frame) + ETHER_ADDR_LEN;
RAY_DPRINTF(sc, RAY_DBG_RX, "from %6D to %6D ap %6D to %6D",
sa, ":", da, ":", ta, ":", ra, ":");
break;
}
/*
* Framing
*
* Each case must leave an Ethernet header and adjust trim.
*/
switch (sc->sc_c.np_framing) {
case RAY_FRAMING_ENCAPSULATION:
/* A NOP as the Ethernet header is in the packet */
break;
case RAY_FRAMING_TRANSLATION:
/* Check that we have an LLC and SNAP sequence */
llc = (struct llc *)((u_int8_t *)header + trim);
if (llc->llc_dsap == LLC_SNAP_LSAP &&
llc->llc_ssap == LLC_SNAP_LSAP &&
llc->llc_control == LLC_UI &&
llc->llc_un.type_snap.org_code[0] == 0 &&
llc->llc_un.type_snap.org_code[1] == 0 &&
llc->llc_un.type_snap.org_code[2] == 0) {
struct ether_header *eh;
/*
* This is not magic. RFC1042 header is 8
* bytes, with the last two bytes being the
* ether type. So all we need is another
* ETHER_ADDR_LEN bytes to write the
* destination into.
*/
trim -= ETHER_ADDR_LEN;
eh = (struct ether_header *)((u_int8_t *)header + trim);
/*
* Copy carefully to avoid mashing the MAC
* addresses. The address layout in the .11 header
* does make sense, honest, but it is a pain.
*
* NODS da sa no risk
* FROMDS da ta sa sa then da
* DSTODS ra ta da sa sa then da
* TODS ra sa da da then sa
*/
if (sa > da) {
/* Copy sa first */
bcopy(sa, eh->ether_shost, ETHER_ADDR_LEN);
bcopy(da, eh->ether_dhost, ETHER_ADDR_LEN);
} else {
/* Copy da first */
bcopy(da, eh->ether_dhost, ETHER_ADDR_LEN);
bcopy(sa, eh->ether_shost, ETHER_ADDR_LEN);
}
} else {
/* Assume RAY_FRAMING_ENCAPSULATION */
RAY_RECERR(sc,
"got encapsulated packet but in translation mode");
}
break;
default:
RAY_RECERR(sc, "unknown framing type %d", sc->sc_c.np_framing);
ifp->if_ierrors++;
m_freem(m0);
return;
}
RAY_MBUF_DUMP(sc, RAY_DBG_RX, m0, "(2) packet after framing");
/*
* Finally, do a bit of house keeping before sending the packet
* up the stack.
*/
m_adj(m0, trim);
RAY_MBUF_DUMP(sc, RAY_DBG_RX, m0, "(3) packet after trimming");
ifp->if_ipackets++;
ray_rx_update_cache(sc, header->i_addr2, siglev, antenna);
(*ifp->if_input)(ifp, m0);
}
/*
* Deal with MGT packet types
*/
static void
ray_rx_mgt(struct ray_softc *sc, struct mbuf *m0)
{
struct ifnet *ifp = sc->ifp;
struct ieee80211_frame *header = mtod(m0, struct ieee80211_frame *);
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_MGT, "");
if ((header->i_fc[1] & IEEE80211_FC1_DIR_MASK) !=
IEEE80211_FC1_DIR_NODS) {
RAY_RECERR(sc, "MGT TODS/FROMDS wrong fc1 0x%x",
header->i_fc[1] & IEEE80211_FC1_DIR_MASK);
ifp->if_ierrors++;
m_freem(m0);
return;
}
/*
* Check the the mgt packet subtype, some packets should be
* dropped depending on the mode the station is in. 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_BEACON
* +EEE IEEE80211_FC0_SUBTYPE_PROBE_REQ
* +EEE IEEE80211_FC0_SUBTYPE_PROBE_RESP
* PPP IEEE80211_FC0_SUBTYPE_AUTH
* PPP IEEE80211_FC0_SUBTYPE_DEAUTH
* JJP IEEE80211_FC0_SUBTYPE_ASSOC_REQ
* JPJ IEEE80211_FC0_SUBTYPE_ASSOC_RESP
* JPP IEEE80211_FC0_SUBTYPE_DISASSOC
* JJP IEEE80211_FC0_SUBTYPE_REASSOC_REQ
* JPJ IEEE80211_FC0_SUBTYPE_REASSOC_RESP
* +EEE IEEE80211_FC0_SUBTYPE_ATIM
*/
RAY_MBUF_DUMP(sc, RAY_DBG_MGT, m0, "MGT packet");
switch (header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
case IEEE80211_FC0_SUBTYPE_BEACON:
RAY_DPRINTF(sc, RAY_DBG_MGT, "BEACON MGT packet");
ray_rx_mgt_beacon(sc, m0);
break;
case IEEE80211_FC0_SUBTYPE_AUTH:
RAY_DPRINTF(sc, RAY_DBG_MGT, "AUTH MGT packet");
ray_rx_mgt_auth(sc, m0);
break;
case IEEE80211_FC0_SUBTYPE_DEAUTH:
RAY_DPRINTF(sc, RAY_DBG_MGT, "DEAUTH MGT packet");
/* XXX ray_rx_mgt_deauth(sc, m0); */
break;
case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
case IEEE80211_FC0_SUBTYPE_REASSOC_REQ:
RAY_DPRINTF(sc, RAY_DBG_MGT, "(RE)ASSOC_REQ MGT packet");
if ((sc->sc_c.np_net_type == RAY_MIB_NET_TYPE_INFRA) &&
(sc->sc_c.np_ap_status == RAY_MIB_AP_STATUS_AP))
RAY_RECERR(sc, "can't be an AP yet"); /* XXX_ACTING_AP */
break;
case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
case IEEE80211_FC0_SUBTYPE_REASSOC_RESP:
RAY_DPRINTF(sc, RAY_DBG_MGT, "(RE)ASSOC_RESP MGT packet");
if ((sc->sc_c.np_net_type == RAY_MIB_NET_TYPE_INFRA) &&
(sc->sc_c.np_ap_status == RAY_MIB_AP_STATUS_TERMINAL))
RAY_RECERR(sc, "can't be in INFRA yet"); /* XXX_INFRA */
break;
case IEEE80211_FC0_SUBTYPE_DISASSOC:
RAY_DPRINTF(sc, RAY_DBG_MGT, "DISASSOC MGT packet");
if (sc->sc_c.np_net_type == RAY_MIB_NET_TYPE_INFRA)
RAY_RECERR(sc, "can't be in INFRA yet"); /* XXX_INFRA */
break;
case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
case IEEE80211_FC0_SUBTYPE_ATIM:
RAY_RECERR(sc, "unexpected MGT packet subtype 0x%0x",
header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
ifp->if_ierrors++;
break;
default:
RAY_RECERR(sc, "reserved MGT packet subtype 0x%x",
header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
ifp->if_ierrors++;
}
m_freem(m0);
}
/*
* Deal with BEACON management packet types
* XXX furtle anything interesting out
* XXX Note that there are rules governing what beacons to read
* XXX see 8802 S7.2.3, S11.1.2.3
* XXX is this actually useful?
*/
static void
ray_rx_mgt_beacon(struct ray_softc *sc, struct mbuf *m0)
{
struct ieee80211_frame *header = mtod(m0, struct ieee80211_frame *);
ieee80211_mgt_beacon_t beacon = (u_int8_t *)(header+1);
union ieee80211_information elements;
u_int64_t *timestamp;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_MGT, "");
timestamp = (u_int64_t *)beacon;
RAY_DPRINTF(sc, RAY_DBG_MGT, "timestamp\t0x%x", *timestamp);
RAY_DPRINTF(sc, RAY_DBG_MGT, "interval\t\t0x%x", IEEE80211_BEACON_INTERVAL(beacon));
RAY_DPRINTF(sc, RAY_DBG_MGT, "capability\t0x%x", IEEE80211_BEACON_CAPABILITY(beacon));
ray_rx_mgt_info(sc, m0, &elements);
}
static void
ray_rx_mgt_info(struct ray_softc *sc, struct mbuf *m0, union ieee80211_information *elements)
{
struct ifnet *ifp = sc->ifp;
struct ieee80211_frame *header = mtod(m0, struct ieee80211_frame *);
ieee80211_mgt_beacon_t beacon = (u_int8_t *)(header+1);
ieee80211_mgt_beacon_t bp, be;
int len;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_MGT, "");
bp = beacon + 12;
be = mtod(m0, u_int8_t *) + m0->m_len;
while (bp < be) {
len = *(bp + 1);
RAY_DPRINTF(sc, RAY_DBG_MGT, "id 0x%02x length %d", *bp, len);
switch (*bp) {
case IEEE80211_ELEMID_SSID:
if (len > IEEE80211_NWID_LEN) {
RAY_RECERR(sc, "bad SSD length: %d from %6D",
len, header->i_addr2, ":");
}
strncpy(elements->ssid, bp + 2, len);
elements->ssid[len] = 0;
RAY_DPRINTF(sc, RAY_DBG_MGT,
"beacon ssid %s", elements->ssid);
break;
case IEEE80211_ELEMID_RATES:
RAY_DPRINTF(sc, RAY_DBG_MGT, "rates");
break;
case IEEE80211_ELEMID_FHPARMS:
elements->fh.dwell = bp[2] + (bp[3] << 8);
elements->fh.set = bp[4];
elements->fh.pattern = bp[5];
elements->fh.index = bp[6];
RAY_DPRINTF(sc, RAY_DBG_MGT,
"fhparams dwell\t0x%04x", elements->fh.dwell);
RAY_DPRINTF(sc, RAY_DBG_MGT,
"fhparams set\t0x%02x", elements->fh.set);
RAY_DPRINTF(sc, RAY_DBG_MGT,
"fhparams pattern\t0x%02x", elements->fh.pattern);
RAY_DPRINTF(sc, RAY_DBG_MGT,
"fhparams index\t0x%02x", elements->fh.index);
break;
case IEEE80211_ELEMID_DSPARMS:
RAY_RECERR(sc, "got direct sequence params!");
break;
case IEEE80211_ELEMID_CFPARMS:
RAY_DPRINTF(sc, RAY_DBG_MGT, "cfparams");
break;
case IEEE80211_ELEMID_TIM:
elements->tim.count = bp[2];
elements->tim.period = bp[3];
elements->tim.bitctl = bp[4];
RAY_DPRINTF(sc, RAY_DBG_MGT,
"tim count\t0x%02x", elements->tim.count);
RAY_DPRINTF(sc, RAY_DBG_MGT,
"tim period\t0x%02x", elements->tim.period);
RAY_DPRINTF(sc, RAY_DBG_MGT,
"tim bitctl\t0x%02x", elements->tim.bitctl);
#if RAY_DEBUG & RAY_DBG_MGT
{
int i;
for (i = 5; i < len + 1; i++)
RAY_DPRINTF(sc, RAY_DBG_MGT,
"tim pvt[%03d]\t0x%02x", i-5, bp[i]);
}
#endif /* (RAY_DEBUG & RAY_DBG_MGT) */
break;
case IEEE80211_ELEMID_IBSSPARMS:
elements->ibss.atim = bp[2] + (bp[3] << 8);
RAY_DPRINTF(sc, RAY_DBG_MGT,
"ibssparams atim\t0x%02x", elements->ibss.atim);
break;
case IEEE80211_ELEMID_CHALLENGE:
RAY_DPRINTF(sc, RAY_DBG_MGT, "challenge");
break;
default:
RAY_RECERR(sc, "reserved MGT element id 0x%x", *bp);
ifp->if_ierrors++;break;
}
bp += bp[1] + 2;
}
}
/*
* Deal with AUTH management packet types
*/
static void
ray_rx_mgt_auth(struct ray_softc *sc, struct mbuf *m0)
{
struct ieee80211_frame *header = mtod(m0, struct ieee80211_frame *);
ieee80211_mgt_auth_t auth = (u_int8_t *)(header+1);
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_AUTH, "");
switch (IEEE80211_AUTH_ALGORITHM(auth)) {
case IEEE80211_AUTH_ALG_OPEN:
RAY_DPRINTF(sc, RAY_DBG_AUTH,
"open system authentication sequence number %d",
IEEE80211_AUTH_TRANSACTION(auth));
if (IEEE80211_AUTH_TRANSACTION(auth) ==
IEEE80211_AUTH_OPEN_REQUEST) {
/* XXX_AUTH use ray_init_auth_send */
} else if (IEEE80211_AUTH_TRANSACTION(auth) ==
IEEE80211_AUTH_OPEN_RESPONSE)
ray_init_auth_done(sc, IEEE80211_AUTH_STATUS(auth));
break;
case IEEE80211_AUTH_ALG_SHARED:
RAY_RECERR(sc,
"shared key authentication sequence number %d",
IEEE80211_AUTH_TRANSACTION(auth));
break;
default:
RAY_RECERR(sc,
"reserved 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->ifp;
struct ieee80211_frame *header = mtod(m0, struct ieee80211_frame *);
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_CTL, "");
if ((header->i_fc[1] & IEEE80211_FC1_DIR_MASK) !=
IEEE80211_FC1_DIR_NODS) {
RAY_RECERR(sc, "CTL TODS/FROMDS wrong fc1 0x%x",
header->i_fc[1] & IEEE80211_FC1_DIR_MASK);
ifp->if_ierrors++;
m_freem(m0);
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. 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_PS_POLL:
RAY_DPRINTF(sc, RAY_DBG_CTL, "PS_POLL CTL packet");
if ((sc->sc_d.np_net_type == RAY_MIB_NET_TYPE_INFRA) &&
(sc->sc_c.np_ap_status == RAY_MIB_AP_STATUS_AP))
RAY_RECERR(sc, "can't be an AP yet"); /* XXX_ACTING_AP */
break;
case IEEE80211_FC0_SUBTYPE_RTS:
case IEEE80211_FC0_SUBTYPE_CTS:
case IEEE80211_FC0_SUBTYPE_ACK:
case IEEE80211_FC0_SUBTYPE_CF_END:
case IEEE80211_FC0_SUBTYPE_CF_END_ACK:
RAY_RECERR(sc, "unexpected CTL packet subtype 0x%0x",
header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
ifp->if_ierrors++;
break;
default:
RAY_RECERR(sc, "reserved CTL packet subtype 0x%x",
header->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK);
ifp->if_ierrors++;
}
m_freem(m0);
}
/*
* 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->ifp;
size_t ccs;
u_int8_t cmd, status;
int ccsi;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
if ((sc == NULL) || (sc->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)) {
ccsi = SRAM_READ_1(sc, RAY_SCB_RCSI);
ccs = RAY_CCS_ADDRESS(ccsi);
cmd = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_cmd);
status = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_status);
if (ccsi <= RAY_CCS_LAST)
ray_intr_ccs(sc, cmd, status, ccs);
else if (ccsi <= RAY_RCS_LAST)
ray_intr_rcs(sc, cmd, ccs);
else
RAY_RECERR(sc, "bad ccs index 0x%x", ccsi);
RAY_HCS_CLEAR_INTR(sc);
}
/* Send any packets lying around and update error counters */
if (!(ifp->if_drv_flags & IFF_DRV_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, u_int8_t status, size_t ccs)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
switch (cmd) {
case RAY_CMD_DOWNLOAD_PARAMS:
RAY_DPRINTF(sc, RAY_DBG_COM, "START_PARAMS");
ray_init_download_done(sc, status, ccs);
break;
case RAY_CMD_UPDATE_PARAMS:
RAY_DPRINTF(sc, RAY_DBG_COM, "UPDATE_PARAMS");
ray_upparams_done(sc, status, ccs);
break;
case RAY_CMD_REPORT_PARAMS:
RAY_DPRINTF(sc, RAY_DBG_COM, "REPORT_PARAMS");
ray_repparams_done(sc, status, ccs);
break;
case RAY_CMD_UPDATE_MCAST:
RAY_DPRINTF(sc, RAY_DBG_COM, "UPDATE_MCAST");
ray_mcast_done(sc, status, 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, status, ccs);
break;
case RAY_CMD_TX_REQ:
RAY_DPRINTF(sc, RAY_DBG_COM, "TX_REQ");
ray_tx_done(sc, status, ccs);
break;
case RAY_CMD_START_ASSOC:
RAY_DPRINTF(sc, RAY_DBG_COM, "START_ASSOC");
ray_init_assoc_done(sc, status, ccs);
break;
case RAY_CMD_UPDATE_APM:
RAY_RECERR(sc, "unexpected UPDATE_APM");
break;
case RAY_CMD_TEST_MEM:
RAY_RECERR(sc, "unexpected TEST_MEM");
break;
case RAY_CMD_SHUTDOWN:
RAY_RECERR(sc, "unexpected SHUTDOWN");
break;
case RAY_CMD_DUMP_MEM:
RAY_RECERR(sc, "unexpected DUMP_MEM");
break;
case RAY_CMD_START_TIMER:
RAY_RECERR(sc, "unexpected START_TIMER");
break;
default:
RAY_RECERR(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, "");
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_c.np_havenet = 1;
break;
case RAY_ECMD_ROAM_START:
RAY_DPRINTF(sc, RAY_DBG_RX, "ROAM_START");
sc->sc_c.np_havenet = 0;
break;
case RAY_ECMD_JAPAN_CALL_SIGNAL:
RAY_RECERR(sc, "unexpected JAPAN_CALL_SIGNAL");
break;
default:
RAY_RECERR(sc, "unknown command 0x%x", cmd);
break;
}
RAY_CCS_FREE(sc, rcs);
}
/*
* User land entry to multicast list changes
*/
static int
ray_mcast_user(struct ray_softc *sc)
{
struct ray_comq_entry *com[2];
int error, ncom;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
/*
* Do all checking in the runq to preserve ordering.
*
* We run promisc to pick up changes to the ALL_MULTI
* interface flag.
*/
ncom = 0;
com[ncom++] = RAY_COM_MALLOC(ray_mcast, 0);
com[ncom++] = RAY_COM_MALLOC(ray_promisc, 0);
RAY_COM_RUNQ(sc, com, ncom, "raymcast", error);
/* XXX no real error processing from anything yet! */
RAY_COM_FREE(com, ncom);
return (error);
}
/*
* Runq entry to setting the multicast filter list
*
* MUST always be followed by a call to ray_promisc to pick up changes
* to promisc flag
*/
static void
ray_mcast(struct ray_softc *sc, struct ray_comq_entry *com)
{
struct ifnet *ifp = sc->ifp;
struct ifmultiaddr *ifma;
size_t bufp;
int count = 0;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
/*
* If card is not running we don't need to update this.
*/
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
RAY_DPRINTF(sc, RAY_DBG_IOCTL, "not running");
ray_com_runq_done(sc);
return;
}
/*
* The multicast list is only 16 items long so use promiscuous
* mode and don't bother updating the multicast list.
*/
IF_ADDR_LOCK(ifp);
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
count++;
if (count == 0) {
IF_ADDR_UNLOCK(ifp);
ray_com_runq_done(sc);
return;
} else if (count > 16) {
ifp->if_flags |= IFF_ALLMULTI;
IF_ADDR_UNLOCK(ifp);
ray_com_runq_done(sc);
return;
} else if (ifp->if_flags & IFF_ALLMULTI)
ifp->if_flags &= ~IFF_ALLMULTI;
/*
* Kick the card
*/
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;
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
SRAM_WRITE_REGION(
sc,
bufp,
LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
ETHER_ADDR_LEN
);
bufp += ETHER_ADDR_LEN;
}
IF_ADDR_UNLOCK(ifp);
ray_com_ecf(sc, com);
}
/*
* Complete the multicast filter list update
*/
static void
ray_mcast_done(struct ray_softc *sc, u_int8_t status, size_t ccs)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_STARTJOIN, "");
RAY_COM_CHECK(sc, ccs);
RAY_CCSERR(sc, status, if_oerrors); /* XXX error counter */
ray_com_ecf_done(sc);
}
/*
* Runq entry to set/reset promiscuous mode
*/
static void
ray_promisc(struct ray_softc *sc, struct ray_comq_entry *com)
{
struct ifnet *ifp = sc->ifp;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
/*
* If card not running or we already have the right flags
* we don't need to update this
*/
sc->sc_d.np_promisc = !!(ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI));
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING) ||
(sc->sc_c.np_promisc == sc->sc_d.np_promisc)) {
ray_com_runq_done(sc);
return;
}
/*
* Kick the card
*/
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, sc->sc_d.np_promisc);
ray_com_ecf(sc, com);
}
/*
* User land entry to parameter reporting
*
* As we by pass the runq to report current parameters this function
* only provides a snap shot of the driver's state.
*/
static int
ray_repparams_user(struct ray_softc *sc, struct ray_param_req *pr)
{
struct ray_comq_entry *com[1];
int error, ncom;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
/*
* 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;
case RAY_MIB_CUR_AP_STATUS:
*pr->r_data = sc->sc_c.np_ap_status;
break;
case RAY_MIB_CUR_PROMISC:
*pr->r_data = sc->sc_c.np_promisc;
break;
case RAY_MIB_DES_AP_STATUS:
*pr->r_data = sc->sc_d.np_ap_status;
break;
case RAY_MIB_DES_PROMISC:
*pr->r_data = sc->sc_d.np_promisc;
break;
case RAY_MIB_CUR_FRAMING:
*pr->r_data = sc->sc_c.np_framing;
break;
case RAY_MIB_DES_FRAMING:
*pr->r_data = sc->sc_d.np_framing;
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;
RAY_COM_RUNQ(sc, com, ncom, "rayrparm", error);
/* XXX no real error processing from anything yet! */
if (!com[0]->c_retval && pr->r_failcause)
error = EINVAL;
RAY_COM_FREE(com, ncom);
return (error);
}
/*
* Runq entry to read the required parameter
*
* The card and driver are happy for parameters to be read
* whenever the card is plugged in
*/
static void
ray_repparams(struct ray_softc *sc, struct ray_comq_entry *com)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
/*
* Kick the card
*/
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, u_int8_t status, size_t ccs)
{
struct ray_comq_entry *com;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
RAY_COM_CHECK(sc, ccs);
RAY_CCSERR(sc, status, if_oerrors); /* XXX error counter */
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)
{
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
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-start/join.
*/
static int
ray_upparams_user(struct ray_softc *sc, struct ray_param_req *pr)
{
struct ray_comq_entry *com[4];
int error, ncom, todo;
#define RAY_UPP_SJ 0x1
#define RAY_UPP_PARAMS 0x2
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
/*
* Check that the parameter is available based on firmware version
*/
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);
/*
* Handle certain parameters specially
*/
todo = 0;
switch (pr->r_paramid) {
case RAY_MIB_NET_TYPE: /* Updated via START_NET JOIN_NET */
sc->sc_d.np_net_type = *pr->r_data;
todo |= RAY_UPP_SJ;
break;
case RAY_MIB_SSID: /* Updated via START_NET JOIN_NET */
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);
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 */
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 but could be done */
case RAY_MIB_PROMISC: /* BPF */
return (EINVAL);
break;
default:
todo |= RAY_UPP_PARAMS;
todo |= RAY_UPP_SJ;
break;
}
/*
* Generate the runq entries as needed
*/
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) {
com[ncom++] = RAY_COM_MALLOC(ray_init_sj, 0);
com[ncom++] = RAY_COM_MALLOC(ray_init_auth, 0);
com[ncom++] = RAY_COM_MALLOC(ray_init_assoc, 0);
}
RAY_COM_RUNQ(sc, com, ncom, "rayuparam", error);
/* XXX no real error processing from anything yet! */
if (!com[0]->c_retval && pr->r_failcause)
error = EINVAL;
RAY_COM_FREE(com, ncom);
return (error);
}
/*
* Runq entry to update a parameter
*
* The card and driver are basically happy for parameters to be updated
* whenever the card is plugged in. However, there may be a couple of
* network hangs whilst the update is performed. Reading parameters back
* straight away may give the wrong answer and some parameters cannot be
* read at all. Local copies should be kept.
*/
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, note that promisc finishes up here too
*/
static void
ray_upparams_done(struct ray_softc *sc, u_int8_t status, size_t ccs)
{
struct ray_comq_entry *com;
RAY_DPRINTF(sc, RAY_DBG_SUBR, "");
RAY_MAP_CM(sc);
RAY_COM_CHECK(sc, ccs);
RAY_CCSERR(sc, status, if_oerrors); /* XXX error counter */
com = TAILQ_FIRST(&sc->sc_comq);
switch (SRAM_READ_FIELD_1(sc, ccs, ray_cmd_update, c_paramid)) {
case RAY_MIB_PROMISC:
sc->sc_c.np_promisc = SRAM_READ_1(sc, RAY_HOST_TO_ECF_BASE);
RAY_DPRINTF(sc, RAY_DBG_IOCTL,
"promisc value %d", sc->sc_c.np_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 = 0;
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 recoverable errors, this routine removes the entries from the
* runq. A caller can requeue the commands (and still preserve its own
* processes ioctl ordering) but doesn't have to. When the card is
* detached we get out quickly to prevent panics and don't bother
* about the runq.
*/
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_DPRINTF(sc, RAY_DBG_COM, "adding %p", com[i]);
RAY_DCOM(sc, RAY_DBG_DCOM, 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.
*/
for (i = 0; i < ncom; i++) {
error = ray_ccs_alloc(sc, &com[i]->c_ccs, wmesg);
if (error == ENXIO)
return (ENXIO);
else if (error)
goto cleanup;
}
/*
* Allow the queue to run and sleep if needed.
*
* Iff the FDETACHED flag is set in the com entry we waited on
* the driver is in a zombie state! The softc structure has been
* freed by the generic bus detach methods - eek. We tread very
* carefully!
*/
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 | PRIBIO, wmesg, 0);
if (com[ncom-1]->c_flags & RAY_COM_FDETACHED)
return (ENXIO);
RAY_DPRINTF(sc, RAY_DBG_COM,
"awakened, tsleep returned 0x%x", error);
} else
error = 0;
cleanup:
/*
* Only clean the queue on real errors - we don't care about it
* when we detach as the queue entries are freed by the callers.
*/
if (error && (error != ENXIO))
for (i = 0; i < ncom; i++)
if (!(com[i]->c_flags & RAY_COM_FCOMPLETED)) {
RAY_DPRINTF(sc, RAY_DBG_COM, "removing %p",
com[i]);
RAY_DCOM(sc, RAY_DBG_DCOM, com[i], "removing");
TAILQ_REMOVE(&sc->sc_comq, com[i], c_chain);
ray_ccs_free(sc, com[i]->c_ccs);
com[i]->c_ccs = 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 ((com == NULL) ||
(com->c_flags & RAY_COM_FRUNNING) ||
(com->c_flags & RAY_COM_FWAIT) ||
(com->c_flags & RAY_COM_FDETACHED))
return;
com->c_flags |= RAY_COM_FRUNNING;
RAY_DPRINTF(sc, RAY_DBG_COM, "running %p", com);
RAY_DCOM(sc, RAY_DBG_DCOM, com, "running");
com->c_function(sc, com);
}
/*
* 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_DPRINTF(sc, RAY_DBG_COM, "removing %p", com);
RAY_DCOM(sc, RAY_DBG_DCOM, 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 = 0;
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_DRV_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)
{
int i = 0;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_COM, "");
RAY_MAP_CM(sc);
while (!RAY_ECF_READY(sc)) {
DELAY(RAY_ECF_SPIN_DELAY);
if (++i > RAY_ECF_SPIN_TRIES)
RAY_PANIC(sc, "spun too long");
}
if (i != 0)
RAY_RECERR(sc, "spun %d times", i);
RAY_DPRINTF(sc, RAY_DBG_COM, "sending %p", com);
RAY_DCOM(sc, RAY_DBG_DCOM, 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, status;
int s;
s = splnet();
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_COM, "");
RAY_MAP_CM(sc);
com = TAILQ_FIRST(&sc->sc_comq);
cmd = SRAM_READ_FIELD_1(sc, com->c_ccs, ray_cmd, c_cmd);
status = SRAM_READ_FIELD_1(sc, com->c_ccs, ray_cmd, c_status);
switch (status) {
case RAY_CCS_STATUS_COMPLETE:
case RAY_CCS_STATUS_FREE: /* Buggy firmware */
ray_intr_ccs(sc, cmd, status, 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, status, 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);
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, if the card is ejected we return ENXIO.
*/
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 | PRIBIO,
wmesg, 0);
if ((sc == NULL) || (sc->sc_gone))
return (ENXIO);
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 == 0)
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_RECERR(sc, "freeing free ccs 0x%02zx", RAY_CCS_INDEX(ccs));
#endif /* RAY_DEBUG & RAY_DBG_CCS */
if (!sc->sc_gone)
RAY_CCS_FREE(sc, ccs);
sc->sc_ccsinuse[RAY_CCS_INDEX(ccs)] = 0;
RAY_DPRINTF(sc, RAY_DBG_CCS, "freed 0x%02zx", 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);
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
*
* The attribute memory space is abused by these devices as IO space. As such
* the OS card services don't have a chance of knowing that they need to keep
* the attribute space mapped. We have to do it manually.
*/
static int
ray_res_alloc_am(struct ray_softc *sc)
{
int error;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_CM, "");
sc->am_rid = RAY_AM_RID;
sc->am_res = bus_alloc_resource(sc->dev, SYS_RES_MEMORY,
&sc->am_rid, 0UL, ~0UL, 0x1000, RF_ACTIVE);
if (!sc->am_res) {
RAY_PRINTF(sc, "Cannot allocate attribute memory");
return (ENOMEM);
}
error = CARD_SET_MEMORY_OFFSET(device_get_parent(sc->dev), sc->dev,
sc->am_rid, 0, NULL);
if (error) {
RAY_PRINTF(sc, "CARD_SET_MEMORY_OFFSET returned 0x%0x", error);
return (error);
}
error = CARD_SET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->am_rid, PCCARD_A_MEM_ATTR);
if (error) {
RAY_PRINTF(sc, "CARD_SET_RES_FLAGS returned 0x%0x", error);
return (error);
}
error = CARD_SET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->am_rid, PCCARD_A_MEM_8BIT);
if (error) {
RAY_PRINTF(sc, "CARD_SET_RES_FLAGS returned 0x%0x", error);
return (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;
u_int32_t offset;
CARD_GET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->am_rid, &flags);
CARD_GET_MEMORY_OFFSET(device_get_parent(sc->dev), sc->dev,
sc->am_rid, &offset);
RAY_PRINTF(sc, "allocated attribute memory:\n"
". start 0x%0lx count 0x%0lx flags 0x%0lx offset 0x%0x",
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, offset);
}
#endif /* RAY_DEBUG & (RAY_DBG_CM | RAY_DBG_BOOTPARAM) */
return (0);
}
/*
* Allocate the common memory on the card
*
* As this memory is described in the CIS, the OS card services should
* have set the map up okay, but the card uses 8 bit RAM. This is not
* described in the CIS.
*/
static int
ray_res_alloc_cm(struct ray_softc *sc)
{
u_long start, count, end;
int error;
RAY_DPRINTF(sc, RAY_DBG_SUBR | RAY_DBG_CM, "");
RAY_DPRINTF(sc,RAY_DBG_CM | RAY_DBG_BOOTPARAM,
"cm start 0x%0lx count 0x%0lx",
bus_get_resource_start(sc->dev, SYS_RES_MEMORY, RAY_CM_RID),
bus_get_resource_count(sc->dev, SYS_RES_MEMORY, RAY_CM_RID));
sc->cm_rid = RAY_CM_RID;
start = bus_get_resource_start(sc->dev, SYS_RES_MEMORY, sc->cm_rid);
count = bus_get_resource_count(sc->dev, SYS_RES_MEMORY, sc->cm_rid);
end = start + count - 1;
sc->cm_res = bus_alloc_resource(sc->dev, SYS_RES_MEMORY,
&sc->cm_rid, start, end, count, RF_ACTIVE);
if (!sc->cm_res) {
RAY_PRINTF(sc, "Cannot allocate common memory");
return (ENOMEM);
}
error = CARD_SET_MEMORY_OFFSET(device_get_parent(sc->dev), sc->dev,
sc->cm_rid, 0, NULL);
if (error) {
RAY_PRINTF(sc, "CARD_SET_MEMORY_OFFSET returned 0x%0x", error);
return (error);
}
error = CARD_SET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->cm_rid, PCCARD_A_MEM_COM);
if (error) {
RAY_PRINTF(sc, "CARD_SET_RES_FLAGS returned 0x%0x", error);
return (error);
}
error = CARD_SET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->cm_rid, PCCARD_A_MEM_8BIT);
if (error) {
RAY_PRINTF(sc, "CARD_SET_RES_FLAGS returned 0x%0x", error);
return (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;
u_int32_t offset;
CARD_GET_RES_FLAGS(device_get_parent(sc->dev), sc->dev,
SYS_RES_MEMORY, sc->cm_rid, &flags);
CARD_GET_MEMORY_OFFSET(device_get_parent(sc->dev), sc->dev,
sc->cm_rid, &offset);
RAY_PRINTF(sc, "allocated common memory:\n"
". start 0x%0lx count 0x%0lx flags 0x%0lx offset 0x%0x",
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, offset);
}
#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, "");
RAY_DPRINTF(sc,RAY_DBG_CM | RAY_DBG_BOOTPARAM,
"irq start 0x%0lx count 0x%0lx",
bus_get_resource_start(sc->dev, SYS_RES_IRQ, 0),
bus_get_resource_count(sc->dev, SYS_RES_IRQ, 0));
sc->irq_rid = 0;
sc->irq_res = bus_alloc_resource_any(sc->dev, SYS_RES_IRQ, &sc->irq_rid,
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;
}
}
/*
* 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);
RAY_PRINTF(sc, "\nm0->data\t0x%p\nm_pkthdr.len\t%d\nm_len\t%d",
mtod(m, u_int8_t *), m->m_pkthdr.len, m->m_len);
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 */
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