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5cda0b02eb
freebsd-dev/sys/dev/ray/if_ray.c
Duncan Barclay 5cda0b02eb Most of this commit are minor changes whilst trying to make the driver 
robust enough to work with dhcp. Essentially the driver returns to userland
before certain commands have been completed by the card. I'm trying to
work out the best way to fix this. There are very minor functional changes,
most of this is debugging.

Rework of debugging so a bit mask is used and re-allocation around the place.

Tried to protect ray_init with a tsleep until the network has been joined. I think this is only a partial fix as we also update the mcast and promisc
values.
2000-04-09 21:07:43 +00:00

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/*
* Copyright (C) 2000
* Dr. Duncan McLennan Barclay, dmlb@ragnet.demon.co.uk.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY DUNCAN BARCLAY AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL DUNCAN BARCLAY OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: if_ray.c,v 1.17 2000/04/04 06:43:30 dmlb Exp $
*
*/
/* $NetBSD: if_ray.c,v 1.12 2000/02/07 09:36:27 augustss Exp $ */
/*
* Copyright (c) 2000 Christian E. Hopps
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
*
* Card configuration
* ==================
*
* This card is unusual in that it uses both common and attribute
* memory whilst working. The -stable versions of FreeBSD have a real
* problem managing and setting up the correct memory maps. This
* driver should reset the memory maps correctly under PAO and non-PAO
* -stable systems. Work is in hand to fix these problems for -current.
*
* So, if you want to use this driver make sure that
* options RAY_NEED_CM_FIXUP
* options RAY_NEED_CM_REMAPPING
* are in your kernel configuration file.
*
* The first fixes the brain deadness of pccardd (where it reads the
* CIS for common memory, sets it all up and then throws it all away
* assuming the card is an ed driver...). Note that this could be
* dangerous (because it doesn't interact with pccardd) if you
* use other memory mapped cards at the same time.
*
* The second option ensures that common memory is remapped whenever
* we are going to access it (we can't just do it once, as something
* like pccardd may have read the attribute memory and pccard.c
* doesn't re-map the last active window - it remaps the last
* non-active window...).
*
*
* Ad-hoc and infra-structure modes
* ================================
*
* At present only the ad-hoc mode is being worked on.
*
* Apart from just writing the code for infrastructure mode I have a
* few concerns about both the Linux and NetBSD drivers in this area.
* They don't seem to differentiate between the MAC address of the AP
* and the BSS_ID of the network. I presume this is handled when
* joining a managed n/w and the network parameters are updated, but
* I'm not sure. How does this interact with ARP? For mobility we want
* to be able to move around without worrying about which AP we are
* actually talking to - we should always talk to the BSS_ID.
*
* The Linux driver also seems to have the capability to act as an AP.
* I wonder what facilities the "AP" can provide within a driver? We can
* probably use the BRIDGE code to form an ESS but I don't think
* power saving etc. is easy.
*
*
* Packet translation/encapsulation
* ================================
*
* Currently we only support the Webgear encapsulation
* 802.11 header <net/if_ieee80211.h>struct ieee80211_header
* 802.3 header <net/ethernet.h>struct ether_header
* 802.2 LLC header
* 802.2 SNAP header
*
* We should support whatever packet types the following drivers have
* if_wi.c FreeBSD, RFC1042
* if_ray.c NetBSD Webgear, RFC1042
* rayctl.c Linux Webgear, RFC1042
* also whatever we can divine from the NDC Access points and Kanda's boxes.
*
* Most drivers appear to have a RFC1042 translation. The incoming packet is
* 802.11 header <net/if_ieee80211.h>struct ieee80211_header
* 802.2 LLC header
* 802.2 SNAP header
*
* This is translated to
* 802.3 header <net/ethernet.h>struct ether_header
* 802.2 LLC header
* 802.2 SNAP header
*
* Linux seems to look at the SNAP org_code and do some translations
* for IPX and APPLEARP on that. This just may be how Linux does IPX
* and NETATALK. Need to see how FreeBSD does these.
*
* Translation should be selected via if_media stuff or link types.
*/
/*
* TODO
*
* _stop - mostly done
* would be nice to understand shutdown/or power save to prevent RX
* _reset - done
* just needs calling in the right places
* converted panics to resets - when tx packets are the wrong length
* may be needed in a couple of other places when I do more commands
* havenet - mostly done
* i think i've got all the places to set it right, but not so sure
* we reset it in all the right places
* _unload - done
* recreated most of stop but as card is unplugged don't try and
* access it to turn it off
* TX bpf - done
* RX bpf - done
* I would much prefer to have the complete 802.11 packet dropped to
* the bpf tap and then have a user land program parse the headers
* as needed. This way, tcpdump -w can be used to grab the raw data. If
* needed the 802.11 aware program can "translate" the .11 to ethernet
* for tcpdump -r
* use std timeout code for download - done
* was mainly moving a call and removing a load of stuff in
* download_done as it duplicates check_ccs and ccs_done
* promisoius - done
* add the start_join_net - done
* i needed it anyway
* remove startccs and startcmd - done
* as those were used for the NetBSD start timeout
* multicast - done but UNTESTED
* I don't have the ability/facilty to test this
* rxlevel - done
* stats reported via raycontrol
* getparams ioctl - done
* reported via raycontrol
* start_join_done needs a restart in download_done - done
* now use netbsd style start up
* ioctls - done
* use raycontrol
* translation, BSS_ID, countrycode, changing mode
* ifp->if_hdr length - done
* rx level and antenna cache - done
* antenna not used yet
* antenna tx side - done
* not tested!
* shutdown - done
* the driver seems to do the right thing for plugging and unplugging
* cards
* apm/resume - ignore
* apm+pccard is borken for 3.x - no one knows how to do it anymore
*
* _reset - check where needed
* faster TX routine
* more translations
* infrastructure mode - maybe need some of the old stuff for checking?
* differeniate between parameters set in attach and init
* spinning in ray_issue_cmd
* fix the XXX code in start_join_done
* make RAY_DEBUG a knob somehow - either sysctl or IFF_DEBUG
* ray_update_params_done needs work
* callout handles need rationalising. can probably remove timerh and
* use ccs_timerh for download and sj_timerh
*/
#define XXX 0
#define XXX_NETBSDTX 0
#define XXX_PROM 0
/*
* XXX build options - move to LINT
*/
/*
* RAY_DEBUG settings
*
* RECERR Recoverable error's
* SUBR Subroutine entry
* BOOTPARAM Startup CM dump
* STARTJOIN State transitions for start/join
* CCS CCS info
* IOCTL IOCTL calls
* NETPARAM SSID when rejoining nets
* MBUF MBUFs dumped
* RX packet types reported
* CM common memory re-mapping
* CMD command scheduler
*/
#define RAY_DBG_RECERR 0x0001
#define RAY_DBG_SUBR 0x0002
#define RAY_DBG_BOOTPARAM 0x0004
#define RAY_DBG_STARTJOIN 0x0008
#define RAY_DBG_CCS 0x0010
#define RAY_DBG_IOCTL 0x0020
#define RAY_DBG_NETPARAM 0x0040
#define RAY_DBG_MBUF 0x0080
#define RAY_DBG_RX 0x0100
#define RAY_DBG_CM 0x0200
#define RAY_DBG_CMD 0x0400
#ifndef RAY_DEBUG
#define RAY_DEBUG ( \
RAY_DBG_RECERR | \
/* RAY_DBG_SUBR | */ \
RAY_DBG_BOOTPARAM | \
RAY_DBG_STARTJOIN | \
/* RAY_DBG_CCS | */ \
RAY_DBG_IOCTL | \
/* RAY_DBG_NETPARAM | */ \
/* RAY_DBG_MBUF | */ \
/* RAY_DBG_RX | */ \
/* RAY_DBG_CM | */ \
RAY_DBG_CMD | \
0 \
)
#endif
#define RAY_CCS_TIMEOUT (hz/2) /* Timeout for CCS commands */
#define RAY_CHECK_SCHED_TIMEOUT (hz) /* Time to wait until command retry, should be > RAY_CCS_TIMEOUT */
#define RAY_NEED_STARTJOIN_TIMO 0 /* Might be needed with build 4 */
#define RAY_SJ_TIMEOUT (90*hz) /* Timeout for failing STARTJOIN commands - only used with RAY_NEED_STARTJOIN_TIMO */
#define RAY_NEED_CM_FIXUP 1 /* Needed until pccardd hacks for ed drivers are removed (pccardd forces 16bit memory and 0x4000 size) THIS IS A DANGEROUS THING TO USE IF YOU USE OTHER MEMORY MAPPED PCCARDS */
#define RAY_NEED_CM_REMAPPING 1 /* Needed until pccard maps more than one memory area */
#define RAY_RESET_TIMEOUT (5*hz) /* Timeout for resetting the card */
#define RAY_USE_CALLOUT_STOP 0 /* Set for kernels with callout_stop function - 3.3 and above */
#define RAY_SIMPLE_TX 1 /* Simple TX routine */
#define RAY_DECENT_TX 0 /* Decent TX routine - tbd */
/*
* XXX build options - move to LINT
*/
/*
* Debugging odds and odds
*/
#ifndef RAY_DEBUG
#define RAY_DEBUG 0x0000
#endif /* RAY_DEBUG */
#if RAY_DEBUG > 0
/* XXX This macro assumes that common memory is mapped into kernel space and
* XXX does not indirect through SRAM macros - it should
*/
#define RAY_DHEX8(p, l, mask) do { if (RAY_DEBUG & mask) { \
u_int8_t *i; \
for (i = p; i < (u_int8_t *)(p+l); i += 8) \
printf(" 0x%08lx %8D\n", \
(unsigned long)i, (unsigned char *)i, " "); \
} } while (0)
#define RAY_DPRINTFN(mask, x) do { if (RAY_DEBUG & mask) { \
printf x ; \
} } while (0)
#define RAY_DNET_DUMP(sc, s) do { if (RAY_DEBUG & RAY_DBG_NETPARAM) { \
printf("ray%d: Current network parameters%s\n", (sc)->unit, (s)); \
printf(" bss_id %6D\n", (sc)->sc_c.np_bss_id, ":"); \
printf(" inited 0x%02x\n", (sc)->sc_c.np_inited); \
printf(" def_txrate 0x%02x\n", (sc)->sc_c.np_def_txrate); \
printf(" encrypt 0x%02x\n", (sc)->sc_c.np_encrypt); \
printf(" net_type 0x%02x\n", (sc)->sc_c.np_net_type); \
printf(" ssid \"%.32s\"\n", (sc)->sc_c.np_ssid); \
printf(" %8D\n", (sc)->sc_c.np_ssid, " "); \
printf(" %8D\n", (sc)->sc_c.np_ssid+8, " "); \
printf(" %8D\n", (sc)->sc_c.np_ssid+16, " "); \
printf(" %8D\n", (sc)->sc_c.np_ssid+24, " "); \
printf(" priv_start 0x%02x\n", (sc)->sc_c.np_priv_start); \
printf(" priv_join 0x%02x\n", (sc)->sc_c.np_priv_join); \
printf("ray%d: Desired network parameters%s\n", (sc)->unit, (s)); \
printf(" bss_id %6D\n", (sc)->sc_d.np_bss_id, ":"); \
printf(" inited 0x%02x\n", (sc)->sc_d.np_inited); \
printf(" def_txrate 0x%02x\n", (sc)->sc_d.np_def_txrate); \
printf(" encrypt 0x%02x\n", (sc)->sc_d.np_encrypt); \
printf(" net_type 0x%02x\n", (sc)->sc_d.np_net_type); \
printf(" ssid \"%.32s\"\n", (sc)->sc_d.np_ssid); \
printf(" %8D\n", (sc)->sc_c.np_ssid, " "); \
printf(" %8D\n", (sc)->sc_c.np_ssid+8, " "); \
printf(" %8D\n", (sc)->sc_c.np_ssid+16, " "); \
printf(" %8D\n", (sc)->sc_c.np_ssid+24, " "); \
printf(" priv_start 0x%02x\n", (sc)->sc_d.np_priv_start); \
printf(" priv_join 0x%02x\n", (sc)->sc_d.np_priv_join); \
} } while (0)
#else
#define RAY_DHEX8(p, l, mask)
#define RAY_DPRINTFN(mask, x)
#define RAY_DNET_DUMP(sc, s)
#endif /* RAY_DEBUG > 0 */
#if RAY_DEBUG & RAY_DBG_MBUF
#define RAY_DMBUF_DUMP(sc, m, s) ray_dump_mbuf((sc), (m), (s))
#else
#define RAY_DMBUF_DUMP(sc, m, s)
#endif /* RAY_DEBUG & RAY_DBG_MBUF */
#include "ray.h"
#include "card.h"
#include "apm.h"
#include "bpfilter.h"
#if NRAY > 0
#include <sys/param.h>
#include <sys/cdefs.h>
#include <sys/conf.h>
#include <sys/errno.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/callout.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/systm.h>
#include <sys/sysctl.h>
#include <sys/uio.h>
#include <sys/proc.h>
#include <sys/ucred.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_mib.h>
#if NBPFILTER > 0
#include <net/bpf.h>
#endif /* NBPFILTER */
#include <machine/clock.h>
#include <machine/md_var.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/limits.h>
#include <i386/isa/isa.h>
#include <i386/isa/isa_device.h>
#include <i386/isa/if_ieee80211.h>
#include <i386/isa/if_rayreg.h>
#include <i386/isa/if_raymib.h>
#if NCARD > 0
#include <pccard/cardinfo.h>
#include <pccard/cis.h>
#include <pccard/driver.h>
#include <pccard/slot.h>
#endif /* NCARD */
#if NAPM > 0
#include <machine/apm_bios.h>
#endif /* NAPM */
/*
* Sysctl knobs
*/
static int ray_debug = RAY_DEBUG;
SYSCTL_NODE(_hw, OID_AUTO, ray, CTLFLAG_RW, 0, "Raylink Driver");
SYSCTL_INT(_hw_ray, OID_AUTO, debug, CTLFLAG_RW, &ray_debug, RAY_DEBUG, "");
/*
* Network parameters, used twice in sotfc to store what we want and what
* we have.
*
* XXX promisc in here too?
* XXX sc_station_addr in here too (for changing mac address)
*/
struct ray_nw_param {
struct ray_cmd_net p_1;
u_int8_t np_ap_status;
struct ray_net_params \
p_2;
u_int8_t np_countrycode;
};
#define np_upd_param p_1.c_upd_param
#define np_bss_id p_1.c_bss_id
#define np_inited p_1.c_inited
#define np_def_txrate p_1.c_def_txrate
#define np_encrypt p_1.c_encrypt
#define np_net_type p_2.p_net_type
#define np_ssid p_2.p_ssid
#define np_priv_start p_2.p_privacy_must_start
#define np_priv_join p_2.p_privacy_can_join
/*
* One of these structures per allocated device
*/
struct ray_softc {
struct arpcom arpcom; /* Ethernet common */
struct ifmedia ifmedia; /* Ifnet common */
struct callout_handle \
ccs_timerh; /* Handle for ccs timeouts */
struct callout_handle \
reset_timerh; /* Handle for reset timer */
struct callout_handle \
start_timerh; /* Handle for start timer */
#if RAY_NEED_STARTJOIN_TIMO
struct callout_handle \
sj_timerh; /* Handle for start_join timer */
#endif /* RAY_NEED_STARTJOIN_TIMO */
char *card_type; /* Card model name */
char *vendor; /* Card manufacturer */
int unit; /* Unit number */
u_char gone; /* 1 = Card bailed out */
caddr_t maddr; /* Shared RAM Address */
int flags; /* Start up flags */
int translation; /* Packet translation types */
#if (RAY_NEED_CM_REMAPPING | RAY_NEED_CM_FIXUP)
int slotnum; /* Slot number */
struct mem_desc md; /* Map info for common memory */
#endif /* (RAY_NEED_CM_REMAPPING | RAY_NEED_CM_FIXUP) */
struct ray_ecf_startup_v5 \
sc_ecf_startup; /* Startup info from card */
struct ray_nw_param sc_c; /* current network params */
struct ray_nw_param sc_d; /* desired network params */
int sc_havenet; /* true if we have a network */
int sc_promisc; /* current set value */
int sc_running; /* things we are doing */
int sc_scheduled; /* things we need to do */
int sc_timoneed; /* set if timeout is sched */
int sc_timocheck; /* set if timeout is sched */
u_int8_t sc_ccsinuse[64];/* ccss' in use -- not for tx */
int sc_checkcounters;
u_int64_t sc_rxoverflow; /* Number of rx overflows */
u_int64_t sc_rxcksum; /* Number of checksum errors */
u_int64_t sc_rxhcksum; /* Number of header checksum errors */
u_int8_t sc_rxnoise; /* Average receiver level */
struct ray_siglev sc_siglevs[RAY_NSIGLEVRECS]; /* Antenna/levels */
struct ray_param_req \
*sc_repreq; /* used to return values */
struct ray_param_req \
*sc_updreq; /* to the user */
};
static struct ray_softc ray_softc[NRAY];
#define sc_station_addr sc_ecf_startup.e_station_addr
#define sc_version sc_ecf_startup.e_fw_build_string
#define sc_tibsize sc_ecf_startup.e_tibsize
/* Commands -- priority given to LSB */
#define SCP_FIRST 0x0001
#define SCP_UPDATESUBCMD 0x0001
#define SCP_STARTASSOC 0x0002
#define SCP_REPORTPARAMS 0x0004
#define SCP_IFSTART 0x0008
/* Update sub commands -- issues are serialized priority to LSB */
#define SCP_UPD_FIRST 0x0100
#define SCP_UPD_STARTUP 0x0100
#define SCP_UPD_STARTJOIN 0x0200
#define SCP_UPD_PROMISC 0x0400
#define SCP_UPD_MCAST 0x0800
#define SCP_UPD_UPDATEPARAMS 0x1000
#define SCP_UPD_SHIFT 8
#define SCP_UPD_MASK 0xff00
/* These command (a subset of the update set) require timeout checking */
#define SCP_TIMOCHECK_CMD_MASK \
(SCP_UPD_UPDATEPARAMS | SCP_UPD_STARTUP | SCP_UPD_MCAST | \
SCP_UPD_PROMISC)
#define SCP_PRINTFB \
"\020" \
"\001SCP_UPDATESUBCMD" \
"\002SCP_STARTASSOC" \
"\003SCP_REPORTPARAMS" \
"\004SCP_IFSTART" \
"\011SCP_UPD_STARTUP" \
"\012SCP_UPD_STARTJOIN" \
"\013SCP_UPD_PROMISC" \
"\014SCP_UPD_MCAST" \
"\015SCP_UPD_UPDATEPARAMS"
/*
* Translation types
*/
/* XXX maybe better as part of the if structure? */
#define SC_TRANSLATE_WEBGEAR 0
/*
* Prototyping
*/
static int ray_attach __P((struct isa_device *dev));
static int ray_alloc_ccs __P((struct ray_softc *sc, size_t *ccsp, u_int cmd, u_int track));
static void ray_ccs_done __P((struct ray_softc *sc, size_t ccs));
static void ray_check_ccs __P((void *arg));
static void ray_check_scheduled __P((void *arg));
static void ray_cmd_cancel __P((struct ray_softc *sc, int cmdf));
static void ray_cmd_done __P((struct ray_softc *sc, int cmdf));
static int ray_cmd_is_running __P((struct ray_softc *sc, int cmdf));
static int ray_cmd_is_scheduled __P((struct ray_softc *sc, int cmdf));
static void ray_cmd_ran __P((struct ray_softc *sc, int cmdf));
static void ray_cmd_schedule __P((struct ray_softc *sc, int cmdf));
static void ray_download_done __P((struct ray_softc *sc));
static void ray_download_params __P((struct ray_softc *sc));
#if RAY_DEBUG & RAY_DBG_MBUF
static void ray_dump_mbuf __P((struct ray_softc *sc, struct mbuf *m, char *s));
#endif /* RAY_DEBUG & RAY_DBG_MBUF */
static u_int8_t ray_free_ccs __P((struct ray_softc *sc, size_t ccs));
#if XXX_NETBSDTX
static void ray_free_ccs_chain __P((struct ray_softc *sc, u_int ni));
#endif /* XXX_NETBSDTX */
static int ray_intr __P((struct pccard_devinfo *dev_p));
static int ray_ioctl __P((struct ifnet *ifp, u_long command, caddr_t data));
static void ray_init __P((void *xsc));
static int ray_issue_cmd __P((struct ray_softc *sc, size_t ccs, u_int track));
static int ray_pccard_init __P((struct pccard_devinfo *dev_p));
static int ray_pccard_intr __P((struct pccard_devinfo *dev_p));
static void ray_pccard_unload __P((struct pccard_devinfo *dev_p));
static int ray_probe __P((struct isa_device *dev));
static void ray_rcs_intr __P((struct ray_softc *sc, size_t ccs));
static void ray_report_params __P((struct ray_softc *sc));
static void ray_reset __P((struct ray_softc *sc));
static void ray_reset_timo __P((void *xsc));
static void ray_rx __P((struct ray_softc *sc, size_t rcs));
static void ray_rx_update_cache __P((struct ray_softc *sc, u_int8_t *src, u_int8_t siglev, u_int8_t antenna));
static void ray_set_pending __P((struct ray_softc *sc, u_int cmdf));
static int ray_simple_cmd __P((struct ray_softc *sc, u_int cmd, u_int track));
static void ray_start __P((struct ifnet *ifp));
static void ray_start_assoc __P((struct ray_softc *sc));
static void ray_start_assoc_done __P((struct ray_softc *sc, size_t ccs, u_int8_t status));
static u_int8_t ray_start_best_antenna __P((struct ray_softc *sc, u_int8_t *dst));
static void ray_start_done __P((struct ray_softc *sc, size_t ccs, u_int8_t status));
static void ray_start_sc __P((struct ray_softc *sc));
static void ray_start_timo __P((void *xsc));
static size_t ray_start_wrhdr __P((struct ray_softc *sc, struct ether_header *eh, size_t bufp));
static void ray_start_join_done __P((struct ray_softc *sc, size_t ccs, u_int8_t status));
static void ray_start_join_net __P((struct ray_softc *sc));
#if RAY_NEED_STARTJOIN_TIMO
static void ray_start_join_timo __P((void *xsc));
#endif /* RAY_NEED_STARTJOIN_TIMO */
static void ray_stop __P((struct ray_softc *sc));
static void ray_update_error_counters \
__P((struct ray_softc *sc));
static void ray_update_mcast __P((struct ray_softc *sc));
static void ray_update_params __P((struct ray_softc *sc));
static void ray_update_params_done __P((struct ray_softc *sc, size_t ccs, u_int stat));
static void ray_update_promisc __P((struct ray_softc *sc));
static void ray_update_subcmd __P((struct ray_softc *sc));
static int ray_user_update_params __P((struct ray_softc *sc, struct ray_param_req *pr));
static int ray_user_report_params __P((struct ray_softc *sc, struct ray_param_req *pr));
static int ray_user_report_stats __P((struct ray_softc *sc, struct ray_stats_req *sr));
static void ray_watchdog __P((struct ifnet *ifp));
/*
* PCMCIA driver definition
*/
PCCARD_MODULE(ray, ray_pccard_init, ray_pccard_unload, ray_pccard_intr, 0, net_imask);
/*
* ISA driver definition
*/
struct isa_driver raydriver = {
ray_probe,
ray_attach,
"ray",
1
};
/*
* Command function tables - based on bit index in SCP_xx
*/
typedef void (*ray_cmd_func_t)(struct ray_softc *);
static ray_cmd_func_t ray_cmdtab[] = {
ray_update_subcmd, /* SCP_UPDATESUBCMD */
ray_start_assoc, /* SCP_STARTASSOC */
ray_report_params, /* SCP_REPORTPARAMS */
ray_start_sc /* SCP_IFSTART */
};
static int ray_ncmdtab = sizeof(ray_cmdtab) / sizeof(*ray_cmdtab);
static ray_cmd_func_t ray_subcmdtab[] = {
ray_download_params, /* SCP_UPD_STARTUP */
ray_start_join_net, /* SCP_UPD_STARTJOIN */
ray_update_promisc, /* SCP_UPD_PROMISC */
ray_update_mcast, /* SCP_UPD_MCAST */
ray_update_params /* SCP_UPD_UPDATEPARAMS */
};
static int ray_nsubcmdtab = sizeof(ray_subcmdtab) / sizeof(*ray_subcmdtab);
/*
* Indirections for reading/writing shared memory - from NetBSD/if_ray.c
*/
#ifndef offsetof
#define offsetof(type, member) \
((size_t)(&((type *)0)->member))
#endif /* offsetof */
#define SRAM_READ_1(sc, off) \
(u_int8_t)*((sc)->maddr + (off))
/* ((u_int8_t)bus_space_read_1((sc)->sc_memt, (sc)->sc_memh, (off))) */
#define SRAM_READ_FIELD_1(sc, off, s, f) \
SRAM_READ_1(sc, (off) + offsetof(struct s, f))
#define SRAM_READ_FIELD_2(sc, off, s, f) \
((((u_int16_t)SRAM_READ_1(sc, (off) + offsetof(struct s, f)) << 8) \
|(SRAM_READ_1(sc, (off) + 1 + offsetof(struct s, f)))))
#define SRAM_READ_FIELD_N(sc, off, s, f, p, n) \
ray_read_region(sc, (off) + offsetof(struct s, f), (p), (n))
#define ray_read_region(sc, off, vp, n) \
bcopy((sc)->maddr + (off), (vp), (n))
#define SRAM_WRITE_1(sc, off, val) \
*((sc)->maddr + (off)) = (val)
/* bus_space_write_1((sc)->sc_memt, (sc)->sc_memh, (off), (val)) */
#define SRAM_WRITE_FIELD_1(sc, off, s, f, v) \
SRAM_WRITE_1(sc, (off) + offsetof(struct s, f), (v))
#define SRAM_WRITE_FIELD_2(sc, off, s, f, v) do { \
SRAM_WRITE_1(sc, (off) + offsetof(struct s, f), (((v) >> 8 ) & 0xff)); \
SRAM_WRITE_1(sc, (off) + 1 + offsetof(struct s, f), ((v) & 0xff)); \
} while (0)
#define SRAM_WRITE_FIELD_N(sc, off, s, f, p, n) \
ray_write_region(sc, (off) + offsetof(struct s, f), (p), (n))
#define ray_write_region(sc, off, vp, n) \
bcopy((vp), (sc)->maddr + (off), (n))
/*
* Macro's and constants
*/
#ifndef RAY_CCS_TIMEOUT
#define RAY_CCS_TIMEOUT (hz / 2)
#endif
#ifndef RAY_CHECK_SCHED_TIMEOUT
#define RAY_CHECK_SCHED_TIMEOUT (hz)
#endif
#ifndef RAY_RESET_TIMEOUT
#define RAY_RESET_TIMEOUT (10 * hz)
#endif
#ifndef RAY_START_TIMEOUT
#define RAY_START_TIMEOUT (hz / 2)
#endif
#define RAY_CCS_FREE(sc, ccs) \
SRAM_WRITE_FIELD_1((sc), (ccs), ray_cmd, c_status, RAY_CCS_STATUS_FREE)
#define RAY_ECF_READY(sc) (!(ray_read_reg(sc, RAY_ECFIR) & RAY_ECFIR_IRQ))
#define RAY_ECF_START_CMD(sc) ray_attr_write((sc), RAY_ECFIR, RAY_ECFIR_IRQ)
#define RAY_HCS_CLEAR_INTR(sc) ray_attr_write((sc), RAY_HCSIR, 0)
#define RAY_HCS_INTR(sc) (ray_read_reg(sc, RAY_HCSIR) & RAY_HCSIR_IRQ)
/*
* As described in if_xe.c...
*
* Horrid stuff for accessing CIS tuples and remapping common memory...
*/
#define CARD_MAJOR 50
static int ray_attr_write __P((struct ray_softc *sc, off_t offset, u_int8_t byte));
static int ray_attr_read __P((struct ray_softc *sc, off_t offset, u_int8_t *buf, int size));
static u_int8_t ray_read_reg __P((struct ray_softc *sc, off_t reg));
#if (RAY_NEED_CM_REMAPPING | RAY_NEED_CM_FIXUP)
static void ray_attr_getmap __P((struct ray_softc *sc));
static void ray_attr_cm __P((struct ray_softc *sc));
#define RAY_MAP_CM(sc) ray_attr_cm(sc)
#else
#define RAY_MAP_CM(sc)
#endif /* (RAY_NEED_CM_REMAPPING | RAY_NEED_CM_FIXUP) */
/*
* PCCard initialise.
*/
static int
ray_pccard_init(dev_p)
struct pccard_devinfo *dev_p;
{
struct ray_softc *sc;
int doRemap;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: PCCard probe\n", dev_p->isahd.id_unit));
if (dev_p->isahd.id_unit >= NRAY)
return (ENODEV);
sc = &ray_softc[dev_p->isahd.id_unit];
#if (RAY_NEED_CM_REMAPPING | RAY_NEED_CM_FIXUP)
sc->slotnum = dev_p->slt->slotnum;
ray_attr_getmap(sc);
RAY_DPRINTFN(RAY_DBG_RECERR, ("ray%d: Memory window flags 0x%02x, start %p, size 0x%x, card address 0x%lx\n", sc->unit, sc->md.flags, sc->md.start, sc->md.size, sc->md.card));
#endif /* (RAY_NEED_CM_REMAPPING | RAY_NEED_CM_FIXUP) */
#if RAY_NEED_CM_FIXUP
doRemap = 0;
if (sc->md.start == 0x0) {
printf("ray%d: pccardd did not map CM - giving up\n", sc->unit);
return (ENXIO);
}
if (sc->md.flags != MDF_ACTIVE) {
printf("ray%d: Fixing up CM flags from 0x%x to 0x40\n",
sc->unit, sc->md.flags);
doRemap = 1;
sc->md.flags = MDF_ACTIVE;
}
if (sc->md.size != 0xc000) {
printf("ray%d: Fixing up CM size from 0x%x to 0xc000\n",
sc->unit, sc->md.size);
doRemap = 1;
sc->md.size = 0xc000;
dev_p->isahd.id_msize = sc->md.size;
}
if (sc->md.card != 0) {
printf("ray%d: Fixing up CM card address from 0x%lx to 0x0\n",
sc->unit, sc->md.card);
doRemap = 1;
sc->md.card = 0;
}
if (doRemap)
ray_attr_cm(sc);
#endif /* RAY_NEED_CM_FIXUP */
sc->gone = 0;
sc->unit = dev_p->isahd.id_unit;
sc->maddr = dev_p->isahd.id_maddr;
sc->flags = dev_p->isahd.id_flags;
printf("ray%d: <Raylink/IEEE 802.11> maddr %p msize 0x%x irq %d flags 0x%x on isa (PC-Card slot %d)\n",
sc->unit,
sc->maddr,
dev_p->isahd.id_msize,
ffs(dev_p->isahd.id_irq) - 1,
sc->flags,
sc->slotnum);
if (ray_attach(&dev_p->isahd))
return (ENXIO);
return (0);
}
/*
* PCCard unload.
*/
static void
ray_pccard_unload(dev_p)
struct pccard_devinfo *dev_p;
{
struct ray_softc *sc;
struct ifnet *ifp;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_pccard_unload\n",
dev_p->isahd.id_unit));
sc = &ray_softc[dev_p->isahd.id_unit];
ifp = &sc->arpcom.ac_if;
if (sc->gone) {
printf("ray%d: ray_pccard_unload unloaded!\n", sc->unit);
return;
}
/*
* Clear out timers and sort out driver state
*
* We use callout_stop to unconditionally kill the ccs and general
* timers as they are used with multiple arguments.
*/
#if RAY_USE_CALLOUT_STOP
callout_stop(sc->ccs_timerh);
callout_stop(sc->reset_timerh);
#else
untimeout(ray_check_ccs, sc, sc->ccs_timerh);
untimeout(ray_check_scheduled, sc, sc->ccs_timerh);
untimeout(ray_reset_timo, sc, sc->reset_timerh);
#endif /* RAY_USE_CALLOUT_STOP */
#if RAY_NEED_STARTJOIN_TIMO
untimeout(ray_start_join_timo, sc, sc->sj_timerh);
#endif /* RAY_NEED_STARTJOIN_TIMO */
untimeout(ray_start_timo, sc, sc->start_timerh);
sc->sc_havenet = 0;
/*
* Mark as not running
*/
ifp->if_flags &= ~IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
/*
* Cleardown interface
*/
if_down(ifp); /* XXX should be if_detach for -current */
/*
* Mark card as gone
*/
sc->gone = 1;
printf("ray%d: ray_pccard_unload unloading complete\n", sc->unit);
return;
}
/*
* process an interrupt
*/
static int
ray_pccard_intr(dev_p)
struct pccard_devinfo *dev_p;
{
return (ray_intr(dev_p));
}
/*
* ISA probe routine.
*/
static int
ray_probe(dev_p)
struct isa_device *dev_p;
{
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ISA probe\n", dev_p->id_unit));
return (0);
}
/*
* ISA/PCCard attach.
*/
static int
ray_attach(dev_p)
struct isa_device *dev_p;
{
struct ray_softc *sc;
struct ray_ecf_startup_v5 *ep;
struct ifnet *ifp;
char ifname[IFNAMSIZ];
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ISA/PCCard attach\n", dev_p->id_unit));
sc = &ray_softc[dev_p->id_unit];
RAY_MAP_CM(sc);
if (sc->gone) {
printf("ray%d: ray_attach unloaded!\n", sc->unit);
return (1);
}
/*
* Read startup results, check the card is okay and work out what
* version we are using.
*/
ep = &sc->sc_ecf_startup;
ray_read_region(sc, RAY_ECF_TO_HOST_BASE, ep, sizeof(sc->sc_ecf_startup));
if (ep->e_status != RAY_ECFS_CARD_OK) {
printf("ray%d: card failed self test: status 0x%b\n", sc->unit,
ep->e_status, RAY_ECFS_PRINTFB);
return (1);
}
if (sc->sc_version != RAY_ECFS_BUILD_4 &&
sc->sc_version != RAY_ECFS_BUILD_5
) {
printf("ray%d: unsupported firmware version 0x%0x\n", sc->unit,
ep->e_fw_build_string);
return (1);
}
if (bootverbose || (RAY_DEBUG & RAY_DBG_BOOTPARAM)) {
printf("ray%d: Start Up Results\n", sc->unit);
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);
}
}
/* Reset any pending interrupts */
RAY_HCS_CLEAR_INTR(sc);
/*
* Set the parameters that will survive stop/init
*
* Do not update these in ray_init's parameter setup
*/
#if XXX
see the ray_init section for stuff to move
#endif
bzero(&sc->sc_d, sizeof(struct ray_nw_param));
bzero(&sc->sc_c, sizeof(struct ray_nw_param));
/*
* Initialise the network interface structure
*/
bcopy((char *)&ep->e_station_addr,
(char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
ifp = &sc->arpcom.ac_if;
ifp->if_softc = sc;
ifp->if_name = "ray";
ifp->if_unit = sc->unit;
ifp->if_timer = 0;
ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST);
ifp->if_hdrlen = sizeof(struct ieee80211_header) +
sizeof(struct ether_header);
ifp->if_baudrate = 1000000; /* Is this baud or bps ;-) */
ifp->if_output = ether_output;
ifp->if_start = ray_start;
ifp->if_ioctl = ray_ioctl;
ifp->if_watchdog = ray_watchdog;
ifp->if_init = ray_init;
ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
/*
* If this logical interface has already been attached,
* don't attach it again or chaos will ensue.
*/
sprintf(ifname, "ray%d", sc->unit);
if (ifunit(ifname) == NULL) {
callout_handle_init(&sc->ccs_timerh);
callout_handle_init(&sc->reset_timerh);
#if RAY_NEED_STARTJOIN_TIMO
callout_handle_init(&sc->sj_timerh);
#endif /* RAY_NEED_STARTJOIN_TIMO */
callout_handle_init(&sc->start_timerh);
if_attach(ifp);
ether_ifattach(ifp);
#if NBPFILTER > 0
bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header));
#endif /* NBFFILTER */
#if XXX
this looks like a good idea
at_shutdown(ray_shutdown, sc, SHUTDOWN_POST_SYNC);
#endif /* XXX */
}
return (0);
}
/*
* Network initialisation.
*
* Start up flow is as follows.
* The kernel calls ray_init when the interface is assigned an address.
*
* ray_init does a bit of house keeping before calling ray_download_params.
*
* ray_download_params fills the startup parameter structure out and
* sends it to the card. The download command simply completes, so we
* use the timeout code in ray_check_ccs instead of spin locking. The
* passes flow to the standard ccs handler and we eventually end up in
* ray_download_done.
*
* ray_download_done tells the card to start an adhoc network or join
* a managed network. This should complete via the interrupt
* mechanism, but the NetBSD driver includes a timeout for some buggy
* stuff somewhere - I've left the hooks in but don't use them. The
* interrupt handler passes control to ray_start_join_done - the ccs
* is handled by the interrupt mechanism.
*
* Once ray_start_join_done has checked the ccs and uploaded/updated
* the network parameters we are ready to process packets. It is then
* safe to call ray_start which is done by the interrupt handler.
*/
static void
ray_init(xsc)
void *xsc;
{
struct ray_softc *sc = xsc;
struct ray_ecf_startup_v5 *ep;
struct ifnet *ifp;
size_t ccs;
int i, rv;
RAY_DPRINTFN(RAY_DBG_SUBR | RAY_DBG_STARTJOIN,
("ray%d: ray_init\n", sc->unit));
RAY_MAP_CM(sc);
if (sc->gone) {
printf("ray%d: ray_init unloaded!\n", sc->unit);
return;
}
ifp = &sc->arpcom.ac_if;
if ((ifp->if_flags & IFF_RUNNING))
ray_stop(sc);
/*
* Reset instance variables
*
* The first set are network parameters that are read back when
* the card starts or joins the network.
*
* The second set are network parameters that are downloaded to
* the card.
*
* The third set are driver parameters.
*
* All of the variables in these sets can be updated by the card or ioctls.
*/
#if XXX
see the ray_attach section for stuff to move
#endif
sc->sc_d.np_upd_param = 0;
bzero(sc->sc_d.np_bss_id, ETHER_ADDR_LEN);
sc->sc_d.np_inited = 0;
sc->sc_d.np_def_txrate = RAY_MIB_BASIC_RATE_SET_DEFAULT;
sc->sc_d.np_encrypt = 0;
sc->sc_d.np_ap_status = RAY_MIB_AP_STATUS_DEFAULT;
sc->sc_d.np_net_type = RAY_MIB_NET_TYPE_DEFAULT;
bzero(sc->sc_d.np_ssid, IEEE80211_NWID_LEN);
strncpy(sc->sc_d.np_ssid, RAY_MIB_SSID_DEFAULT, IEEE80211_NWID_LEN);
sc->sc_d.np_priv_start = RAY_MIB_PRIVACY_MUST_START_DEFAULT;
sc->sc_d.np_priv_join = RAY_MIB_PRIVACY_CAN_JOIN_DEFAULT;
sc->sc_promisc = !!(ifp->if_flags & (IFF_PROMISC|IFF_ALLMULTI));
sc->sc_havenet = 0;
sc->translation = SC_TRANSLATE_WEBGEAR;
/* 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);
/* Clear any pending interrupts */
RAY_HCS_CLEAR_INTR(sc);
#if XXX
Not sure why I really need this - maybe best to deal with
this when resets are requested by me?
#endif /* XXX */
/*
* Get startup results - the card may have been reset
*/
ep = &sc->sc_ecf_startup;
ray_read_region(sc, RAY_ECF_TO_HOST_BASE, ep, sizeof(sc->sc_ecf_startup));
if (ep->e_status != RAY_ECFS_CARD_OK) {
printf("ray%d: card failed self test: status 0x%b\n", sc->unit,
ep->e_status, RAY_ECFS_PRINTFB);
return; /* XXX This doesn't mark the interface as down */
}
/*
* 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);
/*
* We are now up and running. Next we have to download network
* configuration into the card. We are busy until download is done.
*/
ifp->if_flags |= IFF_RUNNING | IFF_OACTIVE;
ray_download_params(sc);
/* XXX is ray_stop is robust enough we can probably dispense with
* XXX the tsleep/wakeup stuff and be safe for fast ifconfigs
*/
while (ifp->if_flags & IFF_OACTIVE) {
RAY_DPRINTFN(RAY_DBG_STARTJOIN,
("ray%d: ray_init sleeping\n", sc->unit));
rv = tsleep(ray_init, 0|PCATCH, "nwinit", 0);
RAY_DPRINTFN(RAY_DBG_STARTJOIN,
("ray%d: ray_init awakened\n", sc->unit));
if (rv) {
RAY_DPRINTFN(RAY_DBG_STARTJOIN,
("ray%d: ray_init tsleep error\n",
sc->unit));
break;
}
}
printf("ray%d: ray_init scheduled commands 0x%b\n", sc->unit, sc->sc_scheduled, SCP_PRINTFB);
printf("ray%d: ray_init running commands 0x%b\n", sc->unit, sc->sc_running, SCP_PRINTFB);
return;
}
/*
* Network stop.
*
* Assumes that a ray_init is used to restart the card. And called in a
* sleepable context.
*
*/
static void
ray_stop(sc)
struct ray_softc *sc;
{
struct ifnet *ifp;
int s;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_stop\n", sc->unit));
RAY_MAP_CM(sc);
if (sc->gone) {
printf("ray%d: ray_stop unloaded!\n", sc->unit);
return;
}
ifp = &sc->arpcom.ac_if;
/*
* Clear out timers and sort out driver state
*/
printf("ray%d: ray_stop scheduled commands 0x%b\n", sc->unit, sc->sc_scheduled, SCP_PRINTFB);
printf("ray%d: ray_stop running commands 0x%b\n", sc->unit, sc->sc_running, SCP_PRINTFB);
printf("ray%d: ray_stop ready %d\n", sc->unit, RAY_ECF_READY(sc));
#if XXX
for (i = 15; i >= 0; i--) {
if (sc->scheduled & (1 << i))
ray_cmd_cancel(sc, (1 << i));
if (sc->sc_running & (1 << i))
printf("ray%d: ray_stop command 0x%b still running", sc->unit,
(1 << i),
);
}
#endif /* XXX */
if (sc->sc_repreq) {
sc->sc_repreq->r_failcause = RAY_FAILCAUSE_EDEVSTOP;
wakeup(ray_report_params);
}
if (sc->sc_updreq) {
sc->sc_repreq->r_failcause = RAY_FAILCAUSE_EDEVSTOP;
wakeup(ray_update_params);
}
#if RAY_USE_CALLOUT_STOP
callout_stop(sc->ccs_timerh);
callout_stop(sc->reset_timerh);
#else
untimeout(ray_check_ccs, sc, sc->ccs_timerh);
untimeout(ray_check_scheduled, sc, sc->ccs_timerh);
untimeout(ray_reset_timo, sc, sc->reset_timerh);
#endif /* RAY_USE_CALLOUT_STOP */
#if RAY_NEED_STARTJOIN_TIMO
untimeout(ray_start_join_timo, sc, sc->sj_timerh);
#endif /* RAY_NEED_STARTJOIN_TIMO */
untimeout(ray_start_timo, sc, sc->start_timerh);
sc->sc_havenet = 0;
sc->sc_rxoverflow = 0;
sc->sc_rxcksum = 0;
sc->sc_rxhcksum = 0;
sc->sc_rxnoise = 0;
/*
* Inhibit card - if we can't prevent reception then do not worry;
* stopping a NIC only guarantees no TX.
*/
s = splimp();
/* XXX what does the SHUTDOWN command do? Or power saving in COR */
splx(s);
/*
* Mark as not running
*/
ifp->if_flags &= ~IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
return;
}
/*
* Reset the card
*
* I'm using the soft reset command in the COR register. I'm not sure
* if the sequence is right but it does seem to do the right thing. A
* nano second after reset is written the flashing light goes out, and
* a few seconds after the default is written the main card light goes
* out. We wait a while and then re-init the card.
*/
static void
ray_reset(sc)
struct ray_softc *sc;
{
struct ifnet *ifp;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_reset\n", sc->unit));
RAY_MAP_CM(sc);
printf("ray%d: ray_reset skip reset card\n", sc->unit);
return;
ifp = &sc->arpcom.ac_if;
if (ifp->if_flags & IFF_RUNNING)
printf("ray%d: *** ray_reset skip stop card\n", sc->unit);
/* XXX ray_stop(sc); not always in a sleepable context? */
printf("ray%d: resetting card\n", sc->unit);
ray_attr_write((sc), RAY_COR, RAY_COR_RESET);
ray_attr_write((sc), RAY_COR, RAY_COR_DEFAULT);
sc->reset_timerh = timeout(ray_reset_timo, sc, RAY_RESET_TIMEOUT);
return;
}
/*
* Finishing resetting and restarting the card
*/
static void
ray_reset_timo(xsc)
void *xsc;
{
struct ray_softc *sc = xsc;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_reset_timo\n", sc->unit));
RAY_MAP_CM(sc);
if (!RAY_ECF_READY(sc)) {
RAY_DPRINTFN(RAY_DBG_RECERR,
("ray%d: ray_reset_timo still busy, re-schedule\n", sc->unit));
sc->reset_timerh = timeout(ray_reset_timo, sc, RAY_RESET_TIMEOUT);
return;
}
RAY_HCS_CLEAR_INTR(sc);
ray_init(sc);
return;
}
static void
ray_watchdog(ifp)
register struct ifnet *ifp;
{
struct ray_softc *sc;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_watchdog\n", ifp->if_unit));
sc = ifp->if_softc;
RAY_MAP_CM(sc);
if (sc->gone) {
printf("ray%d: ray_watchdog unloaded!\n", sc->unit);
return;
}
printf("ray%d: watchdog timeout\n", sc->unit);
/* XXX may need to have remedial action here
for example
ray_reset
ray_stop
...
ray_init
do we only use on TX?
if so then we should clear OACTIVE etc.
*/
return;
}
/*
* Network ioctl request.
*/
static int
ray_ioctl(ifp, command, data)
register struct ifnet *ifp;
u_long command;
caddr_t data;
{
struct ray_softc *sc;
struct ray_param_req pr;
struct ray_stats_req sr;
struct ifreq *ifr;
int s, error, error2;
RAY_DPRINTFN(RAY_DBG_SUBR | RAY_DBG_IOCTL,
("ray%d: ray_ioctl\n", ifp->if_unit));
sc = ifp->if_softc;
RAY_MAP_CM(sc);
if (sc->gone) {
printf("ray%d: ray_ioctl unloaded!\n", sc->unit);
ifp->if_flags &= ~IFF_RUNNING;
return (ENXIO);
}
ifr = (struct ifreq *)data;
error = 0;
error2 = 0;
s = splimp();
switch (command) {
case SIOCSIFADDR:
case SIOCGIFADDR:
case SIOCSIFMTU:
RAY_DPRINTFN(RAY_DBG_IOCTL,
("ray%d: for SIFADDR/GIFADDR/SIFMTU\n", sc->unit));
error = ether_ioctl(ifp, command, data);
break;
case SIOCSIFFLAGS:
RAY_DPRINTFN(RAY_DBG_IOCTL, ("ray%d: for SIFFLAGS\n", sc->unit));
/*
* If the interface is marked up and stopped, then start
* it. If it is marked down and running, then stop it.
*/
if (ifp->if_flags & IFF_UP) {
if (!(ifp->if_flags & IFF_RUNNING))
ray_init(sc);
ray_update_promisc(sc);
} else {
if (ifp->if_flags & IFF_RUNNING)
ray_stop(sc);
}
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
RAY_DPRINTFN(RAY_DBG_IOCTL,
("ray%d: for ADDMULTI/DELMULTI\n", sc->unit));
ray_update_mcast(sc);
error = 0;
break;
case SIOCSRAYPARAM:
RAY_DPRINTFN(RAY_DBG_IOCTL,
("ray%d: for SRAYPARAM\n", sc->unit));
if ((error = copyin(ifr->ifr_data, &pr, sizeof(pr))))
break;
error = ray_user_update_params(sc, &pr);
error2 = copyout(&pr, ifr->ifr_data, sizeof(pr));
error = error2 ? error2 : error;
break;
case SIOCGRAYPARAM:
RAY_DPRINTFN(RAY_DBG_IOCTL,
("ray%d: for GRAYPARAM\n", sc->unit));
if ((error = copyin(ifr->ifr_data, &pr, sizeof(pr))))
break;
error = ray_user_report_params(sc, &pr);
error2 = copyout(&pr, ifr->ifr_data, sizeof(pr));
error = error2 ? error2 : error;
break;
case SIOCGRAYSTATS:
RAY_DPRINTFN(RAY_DBG_IOCTL,
("ray%d: for GRAYSTATS\n", sc->unit));
error = ray_user_report_stats(sc, &sr);
error2 = copyout(&sr, ifr->ifr_data, sizeof(sr));
error = error2 ? error2 : error;
break;
case SIOCGRAYSIGLEV:
RAY_DPRINTFN(RAY_DBG_IOCTL,
("ray%d: for GRAYSIGLEV\n", sc->unit));
error = copyout(sc->sc_siglevs, ifr->ifr_data,
sizeof(sc->sc_siglevs));
break;
case SIOCGIFFLAGS:
RAY_DPRINTFN(RAY_DBG_IOCTL,
("ray%d: for GIFFLAGS\n", sc->unit));
error = EINVAL;
break;
case SIOCGIFMETRIC:
RAY_DPRINTFN(RAY_DBG_IOCTL,
("ray%d: for GIFMETRIC\n", sc->unit));
error = EINVAL;
break;
case SIOCGIFMTU:
RAY_DPRINTFN(RAY_DBG_IOCTL,
("ray%d: for GIFMTU\n", sc->unit));
error = EINVAL;
break;
case SIOCGIFPHYS:
RAY_DPRINTFN(RAY_DBG_IOCTL,
("ray%d: for GIFPYHS\n", sc->unit));
error = EINVAL;
break;
case SIOCSIFMEDIA:
RAY_DPRINTFN(RAY_DBG_IOCTL,
("ray%d: for SIFMEDIA\n", sc->unit));
error = EINVAL;
break;
case SIOCGIFMEDIA:
RAY_DPRINTFN(RAY_DBG_IOCTL,
("ray%d: for GIFMEDIA\n", sc->unit));
error = EINVAL;
break;
default:
error = EINVAL;
}
splx(s);
return (error);
}
/*
* Network start.
*
* Start sending a packet.
*
* We make two assumptions here:
* 1) That the current priority is set to splimp _before_ this code
* is called *and* is returned to the appropriate priority after
* return
* 2) That the IFF_OACTIVE flag is checked before this code is called
* (i.e. that the output part of the interface is idle)
*/
static void
ray_start(struct ifnet *ifp)
{
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_start\n", ifp->if_unit));
ray_start_sc(ifp->if_softc);
}
static void
ray_start_sc(sc)
struct ray_softc *sc;
{
struct ifnet *ifp;
struct mbuf *m0, *m;
struct ether_header *eh;
size_t ccs, bufp;
int i, pktlen, len;
u_int8_t status;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_start_sc\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
/*
* Some simple checks first
*/
if (sc->gone) {
printf("ray%d: ray_start_sc unloaded!\n", sc->unit);
return;
}
if ((ifp->if_flags & IFF_RUNNING) == 0 || !sc->sc_havenet)
return;
if (!RAY_ECF_READY(sc)) {
RAY_DPRINTFN(RAY_DBG_RECERR,
("ray%d: ray_start busy, schedule a timeout\n", sc->unit));
sc->start_timerh = timeout(ray_start_timo, sc, RAY_START_TIMEOUT);
return;
} else
untimeout(ray_start_timo, sc, sc->start_timerh);
/*
* Simple one packet at a time TX routine - probably appaling performance
* and we certainly chew CPU. However bing to windows boxes shows
* a reliance on the far end too:
*
* 1500k default rate
*
* Libretto 50CT (75MHz Pentium) with FreeBSD-3.1 to
* Nonname box Windows 95C (133MHz AMD 5x86) 996109bps
* AST J30 Windows 95A (100MHz Pentium) 1307791bps
*
* 2000k default rate
*
* Libretto 50CT (75MHz Pentium) with FreeBSD-3.1 to
* Nonname box Windows 95C (133MHz AMD 5x86) 1087049bps
* AST J30 Windows 95A (100MHz Pentium) 1307791bps
*
* Flow is
* get a ccs
* build the packet
* set IFF_OACTIVE
* interrupt the card to send the packet
* exit
*
* wait for interrupt telling us the packet has been sent
* clear IFF_OACTIVE
* get called by the interrupt routine if any packets left
*/
/*
* Find a free ccs; if none available wave good bye and exit.
*
* 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.
*
* Don't forget to clear the ccs on errors.
*/
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) {
ifp->if_flags |= IFF_OACTIVE;
return;
}
RAY_DPRINTFN(RAY_DBG_CCS,
("ray%d: ray_start using ccs 0x%02x\n", sc->unit, 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.
*/
ccs = RAY_CCS_ADDRESS(i);
bufp = RAY_TX_BASE + i * RAY_TX_BUF_SIZE;
bufp += sc->sc_tibsize;
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_status, RAY_CCS_STATUS_BUSY);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_cmd, RAY_CMD_TX_REQ);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_link, RAY_CCS_LINK_NULL);
SRAM_WRITE_FIELD_2(sc, ccs, ray_cmd_tx, c_bufp, bufp);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_tx_rate, sc->sc_c.np_def_txrate);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_apm_mode, 0); /* XXX */
bufp += sizeof(struct ray_tx_phy_header);
/*
* 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;
}
eh = mtod(m0, struct ether_header *);
for (pktlen = 0, m = m0; m != NULL; m = m->m_next) {
pktlen += m->m_len;
}
if (pktlen > ETHER_MAX_LEN - ETHER_CRC_LEN) {
RAY_DPRINTFN(RAY_DBG_RECERR,
("ray%d: mbuf too long %d\n", sc->unit, pktlen));
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
m_freem(m0);
return;
}
/* XXX
* I would much prefer to have the complete 802.11 packet dropped to
* the bpf tap and then have a user land program parse the headers
* as needed. This way, tcpdump -w can be used to grab the raw data. If
* needed the 802.11 aware program can "translate" the .11 to ethernet
* for tcpdump -r.
*/
#if NBPFILTER > 0
if (ifp->if_bpf)
bpf_mtap(ifp, m0);
#endif /* NBPFILTER */
/*
* Translation - capability as described earlier
*
* Each case must write the 802.11 header using ray_start_wrhdr,
* passing a pointer to the ethernet header in and getting a new
* tc buffer pointer. Next remove/modify/addto the 802.3 and 802.2
* headers as needed.
*
* We've pulled up the mbuf for you.
*
*/
if (m0->m_len < sizeof(struct ether_header))
m = m_pullup(m, sizeof(struct ether_header));
if (m0 == NULL) {
RAY_DPRINTFN(RAY_DBG_RECERR,
("ray%d: ray_start could not pullup ether\n", sc->unit));
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
return;
}
switch (sc->translation) {
case SC_TRANSLATE_WEBGEAR:
bufp = ray_start_wrhdr(sc, eh, bufp);
break;
default:
printf("ray%d: ray_start unknown translation type 0x%x - why?\n",
sc->unit, sc->translation);
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
m_freem(m0);
m0 = NULL;
return;
}
if (m0 == NULL) {
RAY_DPRINTFN(RAY_DBG_RECERR,
("ray%d: ray_start could not translate mbuf\n", sc->unit));
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
return;
}
pktlen = sizeof(struct ieee80211_header);
/*
* Copy the mbuf to the buffer in common memory
*
* We panic and don't bother wrapping as ethernet packets are 1518
* bytes, we checked the mbuf earlier, and our TX buffers are 2048
* bytes. We don't have 530 bytes of headers etc. so something
* must be fubar.
*/
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)
ray_write_region(sc, bufp, mtod(m, u_int8_t *), len);
else
panic("ray%d: ray_start tx buffer overflow\n", sc->unit);
bufp += len;
}
RAY_DMBUF_DUMP(sc, m0, "ray_start");
/*
* Fill in a few loose ends and kick the card to send the packet
*/
if (!RAY_ECF_READY(sc)) {
/*
* From NetBSD code:
*
* If this can really happen perhaps we need to save
* the chain and use it later. I think this might
* be a confused state though because we check above
* and don't issue any commands between.
*/
printf("ray%d: ray_tx device busy\n", sc->unit);
RAY_CCS_FREE(sc, ccs);
ifp->if_oerrors++;
return;
}
SRAM_WRITE_FIELD_2(sc, ccs, ray_cmd_tx, c_len, pktlen);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_antenna,
ray_start_best_antenna(sc, eh->ether_dhost));
SRAM_WRITE_1(sc, RAY_SCB_CCSI, ccs);
ifp->if_opackets++;
ifp->if_flags |= IFF_OACTIVE;
RAY_ECF_START_CMD(sc);
m_freem(m0);
return;
}
#if XXX_NETBSDTX
netbsd
driver uses a loop
repeat
get a ccs
get a mbuf
translate and send packet to shared ram
until (no more ccs's) || (no more mbuf's)
send ccs chain to card
exit
Linux
driver is simple single shot packet (with a lot of spinlocks!)
general
the tx space is 0x7000 = 28kB, and TX buffer size is 2048 so there
can be 14 requests at 2kB each
from this 2k we have to remove the TIB - whatever that is - for data
netbsd:
we need to call _start after receiveing a packet to see
if any packets were queued whilst in the interrupt
there is a potential race in obtaining ccss for the tx, in that
we might be in _start synchronously and then an rx interrupt
occurs. the rx will call _start and steal tx ccs from underneath
the interrupted entry.
toptions
dont call _start from rx interrupt
find a safe way of locking
find a better way of obtaining ccs using next free avilable?
look at other drivers
use tsleep/wakeup
use asleep await *****
some form of ring to hold ccs
free lsit
rework calling
#endif XXX_NETBSDTX
/******************************************************************************
* XXX NOT KNF FROM HERE UP
******************************************************************************/
/*
* TX completion routine.
*
* Clear ccs and network flags.
*/
static void
ray_start_done(struct ray_softc *sc, size_t ccs, u_int8_t status)
{
struct ifnet *ifp;
char *status_string[] = RAY_CCS_STATUS_STRINGS;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_start_done\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
if (status != RAY_CCS_STATUS_COMPLETE) {
printf("ray%d: ray_start tx completed but status is %s.\n",
sc->unit, status_string[status]);
ifp->if_oerrors++;
}
RAY_CCS_FREE(sc, ccs);
ifp->if_timer = 0;
if (ifp->if_flags & IFF_OACTIVE)
ifp->if_flags &= ~IFF_OACTIVE;
}
/*
* Start timeout routine.
*
* Used when card was busy but we needed to send a packet.
*/
static void
ray_start_timo(void *xsc)
{
struct ray_softc *sc = xsc;
struct ifnet *ifp;
int s;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_start_timo\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
if (!(ifp->if_flags & IFF_OACTIVE) && (ifp->if_snd.ifq_head != NULL)) {
s = splimp();
ray_start(ifp);
splx(s);
}
}
/*
* Write an 802.11 header into the TX buffer and return the
* adjusted buffer pointer.
*/
static size_t
ray_start_wrhdr(struct ray_softc *sc, struct ether_header *eh, size_t bufp)
{
struct ieee80211_header header;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_start_wrhdr\n", sc->unit));
RAY_MAP_CM(sc);
bzero(&header, sizeof(struct ieee80211_header));
header.i_fc[0] = (IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA);
if (sc->sc_c.np_net_type == RAY_MIB_NET_TYPE_ADHOC) {
header.i_fc[1] = IEEE80211_FC1_STA_TO_STA;
bcopy(eh->ether_dhost, header.i_addr1, ETHER_ADDR_LEN);
bcopy(eh->ether_shost, header.i_addr2, ETHER_ADDR_LEN);
bcopy(sc->sc_c.np_bss_id, header.i_addr3, ETHER_ADDR_LEN);
} else {
if (sc->sc_c.np_ap_status == RAY_MIB_AP_STATUS_TERMINAL) {
header.i_fc[1] = IEEE80211_FC1_STA_TO_AP;
bcopy(sc->sc_c.np_bss_id, header.i_addr1,
ETHER_ADDR_LEN);
bcopy(eh->ether_shost, header.i_addr2, ETHER_ADDR_LEN);
bcopy(eh->ether_dhost, header.i_addr3, ETHER_ADDR_LEN);
} else
printf("ray%d: ray_start can't be an AP yet\n",
sc->unit);
}
ray_write_region(sc, bufp, (u_int8_t *)&header,
sizeof(struct ieee80211_header));
return (bufp + sizeof(struct ieee80211_header));
}
/*
* Determine best antenna to use from rx level and antenna cache
*/
static u_int8_t
ray_start_best_antenna(struct ray_softc *sc, u_int8_t *dst)
{
struct ray_siglev *sl;
int i;
u_int8_t antenna;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_start_best_antenna\n", sc->unit));
RAY_MAP_CM(sc);
if (sc->sc_version == RAY_ECFS_BUILD_4)
return (0);
/* try to find host */
for (i = 0; i < RAY_NSIGLEVRECS; i++) {
sl = &sc->sc_siglevs[i];
if (bcmp(sl->rsl_host, dst, ETHER_ADDR_LEN) == 0)
goto found;
}
/* not found, return default setting */
return (0);
found:
/* This is a simple thresholding scheme which takes the mean
* of the best antenna history. This is okay but as it is a
* filter, it adds a bit of lag in situations where the
* best antenna swaps from one side to the other slowly. Don't know
* how likely this is given the horrible fading though.
*/
antenna = 0;
for (i = 0; i < RAY_NANTENNA; i++) {
antenna += sl->rsl_antennas[i];
}
return (antenna > (RAY_NANTENNA >> 1));
}
/*
* receive a packet from the card
*/
static void
ray_rx(struct ray_softc *sc, size_t rcs)
{
struct ieee80211_header *header;
struct ether_header *eh;
struct ifnet *ifp;
struct mbuf *m0;
size_t pktlen, fraglen, readlen, tmplen;
size_t bufp, ebufp;
u_int8_t *dst, *src;
u_int8_t fc;
u_int8_t siglev, antenna;
u_int first, ni, i;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_rx\n", sc->unit));
RAY_MAP_CM(sc);
RAY_DPRINTFN(RAY_DBG_CCS, ("ray%d: rcs chain - using rcs 0x%x\n",
sc->unit, rcs));
ifp = &sc->arpcom.ac_if;
m0 = NULL;
readlen = 0;
/*
* Get first part of packet and the length. Do some sanity checks
* and get a mbuf.
*/
first = RAY_CCS_INDEX(rcs);
pktlen = SRAM_READ_FIELD_2(sc, rcs, ray_cmd_rx, c_pktlen);
siglev = SRAM_READ_FIELD_1(sc, rcs, ray_cmd_rx, c_siglev);
antenna = SRAM_READ_FIELD_1(sc, rcs, ray_cmd_rx, c_antenna);
if ((pktlen > MCLBYTES) || (pktlen < sizeof(struct ieee80211_header))) {
RAY_DPRINTFN(RAY_DBG_RECERR,
("ray%d: ray_rx packet is too big or too small\n",
sc->unit));
ifp->if_ierrors++;
goto skip_read;
}
MGETHDR(m0, M_DONTWAIT, MT_DATA);
if (m0 == NULL) {
RAY_DPRINTFN(RAY_DBG_RECERR,
("ray%d: ray_rx MGETHDR failed\n", sc->unit));
ifp->if_ierrors++;
goto skip_read;
}
if (pktlen > MHLEN) {
MCLGET(m0, M_DONTWAIT);
if ((m0->m_flags & M_EXT) == 0) {
RAY_DPRINTFN(RAY_DBG_RECERR,
("ray%d: ray_rx MCLGET failed\n", sc->unit));
ifp->if_ierrors++;
m_freem(m0);
m0 = NULL;
goto skip_read;
}
}
m0->m_pkthdr.rcvif = ifp;
m0->m_pkthdr.len = pktlen;
m0->m_len = pktlen;
dst = mtod(m0, u_int8_t *);
/*
* Walk the fragment chain to build the complete packet.
*
* The use of two index variables removes a race with the
* hardware. If one index were used the clearing of the CCS would
* happen before reading the next pointer and the hardware can get in.
* Not my idea but verbatim from the NetBSD driver.
*/
i = ni = first;
while ((i = ni) && (i != RAY_CCS_LINK_NULL)) {
rcs = RAY_CCS_ADDRESS(i);
ni = SRAM_READ_FIELD_1(sc, rcs, ray_cmd_rx, c_nextfrag);
bufp = SRAM_READ_FIELD_2(sc, rcs, ray_cmd_rx, c_bufp);
fraglen = SRAM_READ_FIELD_2(sc, rcs, ray_cmd_rx, c_len);
RAY_DPRINTFN(RAY_DBG_RX,
("ray%d: ray_rx frag index %d len %d bufp 0x%x ni %d\n",
sc->unit, i, fraglen, (int)bufp, ni));
if (fraglen + readlen > pktlen) {
RAY_DPRINTFN(RAY_DBG_RECERR,
("ray%d: ray_rx bad length current 0x%x pktlen 0x%x\n",
sc->unit, fraglen + readlen, pktlen));
ifp->if_ierrors++;
m_freem(m0);
m0 = NULL;
goto skip_read;
}
if ((i < RAY_RCS_FIRST) || (i > RAY_RCS_LAST)) {
printf("ray%d: ray_rx bad rcs index 0x%x\n",
sc->unit, i);
ifp->if_ierrors++;
m_freem(m0);
m0 = NULL;
goto skip_read;
}
ebufp = bufp + fraglen;
if (ebufp <= RAY_RX_END)
ray_read_region(sc, bufp, dst, fraglen);
else {
ray_read_region(sc, bufp, dst,
(tmplen = RAY_RX_END - bufp));
ray_read_region(sc, RAY_RX_BASE, dst + tmplen,
ebufp - RAY_RX_END);
}
dst += fraglen;
readlen += fraglen;
}
skip_read:
/*
* Walk the chain again to free the rcss.
*/
i = ni = first;
while ((i = ni) && (i != RAY_CCS_LINK_NULL)) {
rcs = RAY_CCS_ADDRESS(i);
ni = SRAM_READ_FIELD_1(sc, rcs, ray_cmd_rx, c_nextfrag);
RAY_CCS_FREE(sc, rcs);
}
if (m0 == NULL)
return;
RAY_DMBUF_DUMP(sc, m0, "ray_rx");
/*
* Check the 802.11 packet type and obtain the .11 src addresses.
*
* XXX CTL and MGT packets will have separate functions, DATA with here
*
* XXX This needs some work for INFRA mode
*/
header = mtod(m0, struct ieee80211_header *);
fc = header->i_fc[0];
if ((fc & IEEE80211_FC0_VERSION_MASK) != IEEE80211_FC0_VERSION_0) {
RAY_DPRINTFN(RAY_DBG_RECERR,
("ray%d: header not version 0 fc 0x%x\n", sc->unit, fc));
ifp->if_ierrors++;
m_freem(m0);
return;
}
switch (fc & IEEE80211_FC0_TYPE_MASK) {
case IEEE80211_FC0_TYPE_MGT:
printf("ray%d: ray_rx got a MGT packet - why?\n", sc->unit);
ifp->if_ierrors++;
m_freem(m0);
return;
case IEEE80211_FC0_TYPE_CTL:
printf("ray%d: ray_rx got a CTL packet - why?\n", sc->unit);
ifp->if_ierrors++;
m_freem(m0);
return;
case IEEE80211_FC0_TYPE_DATA:
RAY_DPRINTFN(RAY_DBG_MBUF,
("ray%d: ray_rx got a DATA packet\n", sc->unit));
break;
default:
printf("ray%d: ray_rx got a unknown packet fc0 0x%x - why?\n",
sc->unit, fc);
ifp->if_ierrors++;
m_freem(m0);
return;
}
fc = header->i_fc[1];
src = header->i_addr2;
switch (fc & IEEE80211_FC1_DS_MASK) {
case IEEE80211_FC1_STA_TO_STA:
RAY_DPRINTFN(RAY_DBG_RX,
("ray%d: ray_rx packet from sta %6D\n",
sc->unit, src, ":"));
break;
case IEEE80211_FC1_STA_TO_AP:
RAY_DPRINTFN(RAY_DBG_RX,
("ray%d: ray_rx packet from sta to ap %6D %6D\n",
sc->unit, src, ":", header->i_addr3, ":"));
ifp->if_ierrors++;
m_freem(m0);
break;
case IEEE80211_FC1_AP_TO_STA:
RAY_DPRINTFN(RAY_DBG_RX, ("ray%d: ray_rx packet from ap %6D\n",
sc->unit, src, ":"));
ifp->if_ierrors++;
m_freem(m0);
break;
case IEEE80211_FC1_AP_TO_AP:
RAY_DPRINTFN(RAY_DBG_RX,
("ray%d: ray_rx packet between aps %6D %6D\n",
sc->unit, src, ":", header->i_addr2, ":"));
ifp->if_ierrors++;
m_freem(m0);
return;
default:
src = NULL;
printf("ray%d: ray_rx packet type unknown fc1 0x%x - why?\n",
sc->unit, fc);
ifp->if_ierrors++;
m_freem(m0);
return;
}
/*
* Translation - capability as described earlier
*
* Each case must remove the 802.11 header and leave an 802.3
* header in the mbuf copy addresses as needed.
*/
switch (sc->translation) {
case SC_TRANSLATE_WEBGEAR:
/* Nice and easy - just trim the 802.11 header */
m_adj(m0, sizeof(struct ieee80211_header));
break;
default:
printf("ray%d: ray_rx unknown translation type 0x%x - why?\n",
sc->unit, sc->translation);
ifp->if_ierrors++;
m_freem(m0);
return;
}
/*
* Finally, do a bit of house keeping before sending the packet
* up the stack.
*/
ifp->if_ipackets++;
ray_rx_update_cache(sc, src, siglev, antenna);
#if NBPFILTER > 0
if (ifp->if_bpf)
bpf_mtap(ifp, m0);
#endif /* NBPFILTER */
#if XXX_PROM
if_wi.c - might be needed if we hear our own broadcasts in promiscuous mode
but will not be if we dont see them
if ((ifp->if_flags & IFF_PROMISC) &&
(bcmp(eh->ether_shost, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN) &&
(eh->ether_dhost[0] & 1) == 0)
) {
m_freem(m0);
return;
}
#endif /* XXX_PROM */
eh = mtod(m0, struct ether_header *);
m_adj(m0, sizeof(struct ether_header));
ether_input(ifp, eh, m0);
return;
}
/*
* Update rx level and antenna cache
*/
static void
ray_rx_update_cache(struct ray_softc *sc, u_int8_t *src, u_int8_t siglev, u_int8_t antenna)
{
int i, mini;
struct timeval mint;
struct ray_siglev *sl;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_rx_update_cache\n", sc->unit));
RAY_MAP_CM(sc);
/* 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;
}
}
/*
* an update params command has completed lookup which command and
* the status
*
* XXX this isn't finished yet, we need to grok the command used
*/
static void
ray_update_params_done(struct ray_softc *sc, size_t ccs, u_int stat)
{
RAY_DPRINTFN(RAY_DBG_SUBR | RAY_DBG_CMD,
("ray%d: ray_update_params_done\n", sc->unit));
RAY_MAP_CM(sc);
/* this will get more complex as we add commands */
if (stat == RAY_CCS_STATUS_FAIL) {
printf("ray%d: failed to update a promisc\n", sc->unit);
/* XXX should probably reset */
/* rcmd = ray_reset; */
}
if (sc->sc_running & SCP_UPD_PROMISC) {
ray_cmd_done(sc, SCP_UPD_PROMISC);
sc->sc_promisc = SRAM_READ_1(sc, RAY_HOST_TO_ECF_BASE);
RAY_DPRINTFN(RAY_DBG_IOCTL,
("ray%d: new promisc value %d\n", sc->unit,
sc->sc_promisc));
} else if (sc->sc_updreq) {
ray_cmd_done(sc, SCP_UPD_UPDATEPARAMS);
/* get the update parameter */
sc->sc_updreq->r_failcause =
SRAM_READ_FIELD_1(sc, ccs, ray_cmd_update, c_failcause);
sc->sc_updreq = 0;
wakeup(ray_update_params);
ray_start_join_net(sc);
}
}
/*
* check too see if we have any pending commands.
*/
static void
ray_check_scheduled(void *arg)
{
struct ray_softc *sc;
int s, i, mask;
s = splnet();
sc = arg;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_check_scheduled\n", sc->unit));
RAY_MAP_CM(sc);
RAY_DPRINTFN(RAY_DBG_CMD,
("ray%d: ray_check_scheduled in schd 0x%b running 0x%b ready %d\n",
sc->unit, sc->sc_scheduled, SCP_PRINTFB,
sc->sc_running, SCP_PRINTFB, RAY_ECF_READY(sc)));
if (sc->sc_timoneed) {
untimeout(ray_check_scheduled, sc, sc->ccs_timerh);
sc->sc_timoneed = 0;
}
/* if update subcmd is running -- clear it in scheduled */
if (sc->sc_running & SCP_UPDATESUBCMD)
sc->sc_scheduled &= ~SCP_UPDATESUBCMD;
mask = SCP_FIRST;
for (i = 0; i < ray_ncmdtab; mask <<= 1, i++) {
if ((sc->sc_scheduled & ~SCP_UPD_MASK) == 0)
break;
if (!RAY_ECF_READY(sc))
break;
if (sc->sc_scheduled & mask)
(*ray_cmdtab[i])(sc);
}
RAY_DPRINTFN(RAY_DBG_CMD,
("ray%d: ray_check_scheduled out schd 0x%b running 0x%b ready %d\n",
sc->unit, sc->sc_scheduled, SCP_PRINTFB,
sc->sc_running, SCP_PRINTFB, RAY_ECF_READY(sc)));
if (sc->sc_scheduled & ~SCP_UPD_MASK)
ray_set_pending(sc, sc->sc_scheduled);
splx(s);
}
/*
* check for unreported returns
*
* 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
*/
static void
ray_check_ccs(void *arg)
{
struct ray_softc *sc;
u_int i, cmd, stat;
size_t ccs;
int s;
s = splnet();
sc = arg;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_check_ccs\n", sc->unit));
RAY_MAP_CM(sc);
ccs = 0;
stat = RAY_CCS_STATUS_FAIL;
sc->sc_timocheck = 0;
for (i = RAY_CCS_CMD_FIRST; i <= RAY_CCS_CMD_LAST; i++) {
if (!sc->sc_ccsinuse[i])
continue;
ccs = RAY_CCS_ADDRESS(i);
cmd = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_cmd);
switch (cmd) {
case RAY_CMD_START_PARAMS:
case RAY_CMD_UPDATE_MCAST:
case RAY_CMD_UPDATE_PARAMS:
stat = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_status);
RAY_DPRINTFN(RAY_DBG_CMD,
("ray%d: ray_check_ccs ccs 0x%x cmd 0x%x stat %d\n",
sc->unit, i, cmd, stat));
goto breakout;
}
}
breakout:
/* see if we got one of the commands we are looking for */
if (i > RAY_CCS_CMD_LAST)
; /* nothign */
else if (stat == RAY_CCS_STATUS_FREE) {
stat = RAY_CCS_STATUS_COMPLETE;
ray_ccs_done(sc, ccs);
} else if (stat != RAY_CCS_STATUS_BUSY) {
if (sc->sc_ccsinuse[i] == 1) {
/* give a chance for the interrupt to occur */
sc->sc_ccsinuse[i] = 2;
if (!sc->sc_timocheck) {
sc->ccs_timerh = timeout(ray_check_ccs, sc, 1);
sc->sc_timocheck = 1;
}
} else
ray_ccs_done(sc, ccs);
} else {
sc->ccs_timerh = timeout(ray_check_ccs, sc, RAY_CCS_TIMEOUT);
sc->sc_timocheck = 1;
}
splx(s);
}
/*
* read the counters, 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.
*/
static void
ray_update_error_counters(struct ray_softc *sc)
{
size_t csc;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_update_error_counters\n", sc->unit));
RAY_MAP_CM(sc);
/* try and update the error counters */
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 - called from ray_intr
*/
static void
ray_ccs_done(struct ray_softc *sc, size_t ccs)
{
struct ifnet *ifp;
u_int cmd, stat;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_ccs_done\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
cmd = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_cmd);
stat = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_status);
RAY_DPRINTFN(RAY_DBG_CCS,
("ray%d: ccs idx %d ccs 0x%x cmd 0x%x status %d\n",
sc->unit, RAY_CCS_INDEX(ccs), ccs, cmd, stat));
switch (cmd) {
case RAY_CMD_START_PARAMS:
RAY_DPRINTFN(RAY_DBG_CCS,
("ray%d: ray_ccs_done got START_PARAMS\n", sc->unit));
ray_download_done(sc);
break;
case RAY_CMD_UPDATE_PARAMS:
RAY_DPRINTFN(RAY_DBG_CCS,
("ray%d: ray_ccs_done got UPDATE_PARAMS\n", sc->unit));
ray_update_params_done(sc, ccs, stat);
break;
case RAY_CMD_REPORT_PARAMS:
RAY_DPRINTFN(RAY_DBG_CCS,
("ray%d: ray_ccs_done got REPORT_PARAMS\n", sc->unit));
/* get the reported parameters */
ray_cmd_done(sc, SCP_REPORTPARAMS);
if (!sc->sc_repreq)
break;
sc->sc_repreq->r_failcause =
SRAM_READ_FIELD_1(sc, ccs, ray_cmd_report, c_failcause);
sc->sc_repreq->r_len =
SRAM_READ_FIELD_1(sc, ccs, ray_cmd_report, c_len);
ray_read_region(sc, RAY_ECF_TO_HOST_BASE, sc->sc_repreq->r_data,
sc->sc_repreq->r_len);
sc->sc_repreq = 0;
wakeup(ray_report_params);
break;
case RAY_CMD_UPDATE_MCAST:
RAY_DPRINTFN(RAY_DBG_CCS,
("ray%d: ray_ccs_done got UPDATE_MCAST\n", sc->unit));
ray_cmd_done(sc, SCP_UPD_MCAST);
if (stat == RAY_CCS_STATUS_FAIL)
ray_reset(sc);
break;
case RAY_CMD_START_NET:
case RAY_CMD_JOIN_NET:
RAY_DPRINTFN(RAY_DBG_CCS,
("ray%d: ray_ccs_done got START|JOIN_NET\n", sc->unit));
ray_start_join_done(sc, ccs, stat);
break;
case RAY_CMD_TX_REQ:
RAY_DPRINTFN(RAY_DBG_CCS,
("ray%d: ray_ccs_done got TX_REQ\n", sc->unit));
ray_start_done(sc, ccs, stat);
goto done;
case RAY_CMD_START_ASSOC:
RAY_DPRINTFN(RAY_DBG_CCS,
("ray%d: ray_ccs_done got START_ASSOC\n", sc->unit));
ray_start_assoc_done(sc, ccs, stat);
break;
case RAY_CMD_UPDATE_APM:
printf("ray%d: ray_ccs_done got UPDATE_APM - why?\n", sc->unit);
break;
case RAY_CMD_TEST_MEM:
printf("ray%d: ray_ccs_done got TEST_MEM - why?\n", sc->unit);
break;
case RAY_CMD_SHUTDOWN:
printf("ray%d: ray_ccs_done got SHUTDOWN - why?\n", sc->unit);
break;
case RAY_CMD_DUMP_MEM:
printf("ray%d: ray_ccs_done got DUMP_MEM - why?\n", sc->unit);
break;
case RAY_CMD_START_TIMER:
printf("ray%d: ray_ccs_done got START_TIMER - why?\n",
sc->unit);
break;
default:
printf("ray%d: ray_ccs_done unknown command 0x%x\n",
sc->unit, cmd);
break;
}
ray_free_ccs(sc, ccs);
done:
/*
* see if needed things can be done now that a command
* has completed
*/
ray_check_scheduled(sc);
}
/*
* Process ECF command request - called from ray_intr
*/
static void
ray_rcs_intr(struct ray_softc *sc, size_t rcs)
{
struct ifnet *ifp;
u_int cmd, status;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_rcs_intr\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
cmd = SRAM_READ_FIELD_1(sc, rcs, ray_cmd, c_cmd);
status = SRAM_READ_FIELD_1(sc, rcs, ray_cmd, c_status);
RAY_DPRINTFN(RAY_DBG_CCS,
("ray%d: rcs idx %d rcs 0x%x cmd 0x%x status %d\n",
sc->unit, RAY_CCS_INDEX(rcs), rcs, cmd, status));
switch (cmd) {
case RAY_ECMD_RX_DONE:
RAY_DPRINTFN(RAY_DBG_CCS, ("ray%d: ray_rcs_intr got RX_DONE\n",
sc->unit));
ray_rx(sc, rcs);
break;
case RAY_ECMD_REJOIN_DONE:
RAY_DPRINTFN(RAY_DBG_CCS, ("ray%d: ray_rcs_intr got REJOIN_DONE\n",
sc->unit));
sc->sc_havenet = 1; /* Should not be here but in function */
XXX;
break;
case RAY_ECMD_ROAM_START:
RAY_DPRINTFN(RAY_DBG_CCS, ("ray%d: ray_rcs_intr got ROAM_START\n",
sc->unit));
sc->sc_havenet = 0; /* Should not be here but in function */
XXX;
break;
case RAY_ECMD_JAPAN_CALL_SIGNAL:
printf("ray%d: ray_rcs_intr got JAPAN_CALL_SIGNAL - why?\n",
sc->unit);
break;
default:
printf("ray%d: ray_rcs_intr unknown command 0x%x\n",
sc->unit, cmd);
break;
}
RAY_CCS_FREE(sc, rcs);
}
/*
* process an interrupt
*/
static int
ray_intr(struct pccard_devinfo *dev_p)
{
struct ray_softc *sc;
struct ifnet *ifp;
int i, count;
sc = &ray_softc[dev_p->isahd.id_unit];
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_intr\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
if (sc->gone) {
printf("ray%d: ray_intr unloaded!\n", sc->unit);
return (0);
}
if ((++sc->sc_checkcounters % 32) == 0)
ray_update_error_counters(sc);
/*
* Check that the interrupt was for us, if so get the rcs/ccs
* and vector on the command contained within it.
*/
if (!RAY_HCS_INTR(sc))
count = 0;
else {
count = 1;
i = SRAM_READ_1(sc, RAY_SCB_RCSI);
if (i <= RAY_CCS_LAST)
ray_ccs_done(sc, RAY_CCS_ADDRESS(i));
else if (i <= RAY_RCS_LAST)
ray_rcs_intr(sc, RAY_CCS_ADDRESS(i));
else
printf("ray%d: ray_intr bad ccs index %d\n", sc->unit, i);
}
if (count)
RAY_HCS_CLEAR_INTR(sc);
RAY_DPRINTFN(RAY_DBG_RX, ("ray%d: interrupt %s handled\n",
sc->unit, count?"was":"not"));
/* Send any packets lying around */
if (!(ifp->if_flags & IFF_OACTIVE) && (ifp->if_snd.ifq_head != NULL))
ray_start(ifp);
return (count);
}
/*
* Generic CCS handling
*/
#if XXX_NETBSDTX
/*
* free the chain of descriptors -- used for freeing allocated tx chains
*/
static void
ray_free_ccs_chain(struct ray_softc *sc, u_int ni)
{
u_int i;
RAY_DPRINTFN(RAY_DBG_SUBR | RAY_DBG_CCS,
("ray%d: ray_free_ccs_chain\n", sc->unit));
RAY_MAP_CM(sc);
while ((i = ni) != RAY_CCS_LINK_NULL) {
ni = SRAM_READ_FIELD_1(sc, RAY_CCS_ADDRESS(i), ray_cmd, c_link);
RAY_CCS_FREE(sc, RAY_CCS_ADDRESS(i));
}
}
#endif XXX_NETBSDTX
/*
* free up a cmd and return the old status.
* this routine is only used for commands.
*/
static u_int8_t
ray_free_ccs(struct ray_softc *sc, size_t ccs)
{
u_int8_t stat;
RAY_DPRINTFN(RAY_DBG_SUBR | RAY_DBG_CCS,
("ray%d: ray_free_ccs\n", sc->unit));
RAY_MAP_CM(sc);
stat = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_status);
RAY_CCS_FREE(sc, ccs);
if (ccs <= RAY_CCS_ADDRESS(RAY_CCS_LAST))
sc->sc_ccsinuse[RAY_CCS_INDEX(ccs)] = 0;
RAY_DPRINTFN(RAY_DBG_CCS, ("ray%d: ray_free_ccs freed 0x%02x\n",
sc->unit, RAY_CCS_INDEX(ccs)));
return (stat);
}
/*
* Obtain a free ccs buffer.
*
* returns 1 and in `ccsp' the bus offset of the free ccs
* or 0 if none are free
*
* If `track' is not zero, handles tracking this command
* possibly indicating a callback is needed and setting a timeout
* also if ECF isn't ready we terminate earlier to avoid overhead.
*
* this routine is only used for commands
*/
static int
ray_alloc_ccs(struct ray_softc *sc, size_t *ccsp, u_int cmd, u_int track)
{
size_t ccs;
u_int i;
RAY_DPRINTFN(RAY_DBG_SUBR | RAY_DBG_CCS,
("ray%d: ray_alloc_ccs\n", sc->unit));
RAY_MAP_CM(sc);
/* for tracked commands, if not ready just set pending */
if (track && !RAY_ECF_READY(sc)) {
ray_cmd_schedule(sc, track);
return (0);
}
for (i = RAY_CCS_CMD_FIRST; i <= RAY_CCS_CMD_LAST; i++) {
/* 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) {
if (track)
ray_cmd_schedule(sc, track);
return (0);
}
sc->sc_ccsinuse[i] = 1;
ccs = RAY_CCS_ADDRESS(i);
RAY_DPRINTFN(RAY_DBG_CCS,
("ray%d: ray_alloc_ccs using ccs 0x%0x\n", sc->unit, i));
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);
*ccsp = ccs;
return (1);
}
/*
* this function sets the pending bit for the command given in 'need'
* and schedules a timeout if none is scheduled already. Any command
* that uses the `host to ecf' region must be serialized.
*/
static void
ray_set_pending(struct ray_softc *sc, u_int cmdf)
{
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_set_pending\n", sc->unit));
RAY_MAP_CM(sc);
RAY_DPRINTFN(RAY_DBG_CMD,
("ray%d: ray_set_pending 0x%b\n", sc->unit, cmdf, SCP_PRINTFB));
sc->sc_scheduled |= cmdf;
if (!sc->sc_timoneed) {
RAY_DPRINTFN(RAY_DBG_CCS,
("ray%d: ray_set_pending new timo\n", sc->unit));
sc->ccs_timerh = timeout(ray_check_scheduled, sc,
RAY_CHECK_SCHED_TIMEOUT);
sc->sc_timoneed = 1;
}
}
/*
* schedule the `cmdf' for completion later
*/
static void
ray_cmd_schedule(struct ray_softc *sc, int cmdf)
{
int track;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_cmd_schedule\n", sc->unit));
RAY_MAP_CM(sc);
RAY_DPRINTFN(RAY_DBG_CMD,
("ray%d: ray_cmd_schedule 0x%b\n", sc->unit, cmdf, SCP_PRINTFB));
track = cmdf;
if ((cmdf & SCP_UPD_MASK) == 0)
ray_set_pending(sc, track);
else if (ray_cmd_is_running(sc, SCP_UPDATESUBCMD)) {
/* don't do timeout mechaniscm if subcmd already going */
sc->sc_scheduled |= cmdf;
} else
ray_set_pending(sc, cmdf | SCP_UPDATESUBCMD);
}
/*
* check to see if `cmdf' has been scheduled
*/
static int
ray_cmd_is_scheduled(struct ray_softc *sc, int cmdf)
{
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_cmd_is_scheduled\n", sc->unit));
RAY_MAP_CM(sc);
return ((sc->sc_scheduled & cmdf) ? 1 : 0);
}
/*
* cancel a scheduled command (not a running one though!)
*/
static void
ray_cmd_cancel(struct ray_softc *sc, int cmdf)
{
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_cmd_cancel\n", sc->unit));
RAY_MAP_CM(sc);
RAY_DPRINTFN(RAY_DBG_CMD,
("ray%d: ray_cmd_cancel 0x%b\n", sc->unit, cmdf, SCP_PRINTFB));
sc->sc_scheduled &= ~cmdf;
if ((cmdf & SCP_UPD_MASK) && (sc->sc_scheduled & SCP_UPD_MASK) == 0)
sc->sc_scheduled &= ~SCP_UPDATESUBCMD;
/* if nothing else needed cancel the timer */
if (sc->sc_scheduled == 0 && sc->sc_timoneed) {
untimeout(ray_check_scheduled, sc, sc->ccs_timerh);
sc->sc_timoneed = 0;
}
}
/*
* called to indicate the 'cmdf' has been issued
*/
static void
ray_cmd_ran(struct ray_softc *sc, int cmdf)
{
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_cmd_ran\n", sc->unit));
RAY_MAP_CM(sc);
RAY_DPRINTFN(RAY_DBG_CMD,
("ray%d: ray_cmd_ran 0x%b\n", sc->unit, cmdf, SCP_PRINTFB));
if (cmdf & SCP_UPD_MASK)
sc->sc_running |= cmdf | SCP_UPDATESUBCMD;
else
sc->sc_running |= cmdf;
if ((cmdf & SCP_TIMOCHECK_CMD_MASK) && !sc->sc_timocheck) {
sc->ccs_timerh = timeout(ray_check_ccs, sc, RAY_CCS_TIMEOUT);
sc->sc_timocheck = 1;
}
}
/*
* check to see if `cmdf' has been issued
*/
static int
ray_cmd_is_running(struct ray_softc *sc, int cmdf)
{
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_cmd_is_running\n", sc->unit));
RAY_MAP_CM(sc);
return ((sc->sc_running & cmdf) ? 1 : 0);
}
/*
* the given `cmdf' that was issued has completed
*/
static void
ray_cmd_done(struct ray_softc *sc, int cmdf)
{
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_cmd_done\n", sc->unit));
RAY_MAP_CM(sc);
RAY_DPRINTFN(RAY_DBG_CMD,
("ray%d: ray_cmd_done 0x%b\n", sc->unit, cmdf, SCP_PRINTFB));
sc->sc_running &= ~cmdf;
if (cmdf & SCP_UPD_MASK) {
sc->sc_running &= ~SCP_UPDATESUBCMD;
if (sc->sc_scheduled & SCP_UPD_MASK)
ray_cmd_schedule(sc, sc->sc_scheduled & SCP_UPD_MASK);
}
if ((sc->sc_running & SCP_TIMOCHECK_CMD_MASK) == 0 && sc->sc_timocheck){
untimeout(ray_check_ccs, sc, sc->ccs_timerh);
sc->sc_timocheck = 0;
}
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
}
/*
* issue the command
* only used for commands not tx
*/
static int
ray_issue_cmd(struct ray_softc *sc, size_t ccs, u_int track)
{
u_int i;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_cmd_issue\n", sc->unit));
RAY_MAP_CM(sc);
RAY_DPRINTFN(RAY_DBG_CMD,
("ray%d: ray_issue_cmd 0x%b\n", sc->unit, track, SCP_PRINTFB));
/*
* XXX other drivers did this, but I think
* what we really want to do is just make sure we don't
* get here or that spinning is ok
*/
i = 0;
while (!RAY_ECF_READY(sc))
if (++i > 50) {
printf("\n");
(void)ray_free_ccs(sc, ccs);
if (track)
ray_cmd_schedule(sc, track);
return (0);
} else if (i == 1)
printf("ray%d: ray_issue_cmd spinning", sc->unit);
else
printf(".");
SRAM_WRITE_1(sc, RAY_SCB_CCSI, RAY_CCS_INDEX(ccs));
RAY_ECF_START_CMD(sc);
ray_cmd_ran(sc, track);
return (1);
}
/*
* send a simple command if we can
*/
static int
ray_simple_cmd(struct ray_softc *sc, u_int cmd, u_int track)
{
size_t ccs;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_simple_cmd\n", sc->unit));
RAY_MAP_CM(sc);
RAY_DPRINTFN(RAY_DBG_CMD,
("ray%d: ray_simple_cmd 0x%b\n", sc->unit, track, SCP_PRINTFB));
return (ray_alloc_ccs(sc, &ccs, cmd, track) &&
ray_issue_cmd(sc, ccs, track));
}
/*
* Functions based on CCS commands
*/
/*
* run a update subcommand
*/
static void
ray_update_subcmd(struct ray_softc *sc)
{
struct ifnet *ifp;
int submask, i;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_update_subcmd\n", sc->unit));
RAY_MAP_CM(sc);
RAY_DPRINTFN(RAY_DBG_CMD,
("ray%d: ray_update_subcmd\n", sc->unit));
ray_cmd_cancel(sc, SCP_UPDATESUBCMD);
ifp = &sc->arpcom.ac_if;
if ((ifp->if_flags & IFF_RUNNING) == 0)
return;
submask = SCP_UPD_FIRST;
for (i = 0; i < ray_nsubcmdtab; submask <<= 1, i++) {
if ((sc->sc_scheduled & SCP_UPD_MASK) == 0)
break;
/* when done the next command will be scheduled */
if (ray_cmd_is_running(sc, SCP_UPDATESUBCMD))
break;
if (!RAY_ECF_READY(sc))
break;
/*
* give priority to LSB -- e.g., if previous loop reschuled
* doing this command after calling the function won't catch
* if a later command sets an earlier bit
*/
if (sc->sc_scheduled & ((submask - 1) & SCP_UPD_MASK))
break;
if (sc->sc_scheduled & submask)
(*ray_subcmdtab[i])(sc);
}
}
/*
* report a parameter
*/
static void
ray_report_params(struct ray_softc *sc)
{
struct ifnet *ifp;
size_t ccs;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_report_params\n", sc->unit));
RAY_MAP_CM(sc);
ray_cmd_cancel(sc, SCP_REPORTPARAMS);
ifp = &sc->arpcom.ac_if;
if (!sc->sc_repreq)
return;
/* do the issue check before equality check */
if ((ifp->if_flags & IFF_RUNNING) == 0)
return;
else if (ray_cmd_is_running(sc, SCP_REPORTPARAMS)) {
ray_cmd_schedule(sc, SCP_REPORTPARAMS);
return;
} else if (!ray_alloc_ccs(sc, &ccs, RAY_CMD_REPORT_PARAMS,
SCP_REPORTPARAMS))
return;
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_report, c_paramid,
sc->sc_repreq->r_paramid);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_report, c_nparam, 1);
(void)ray_issue_cmd(sc, ccs, SCP_REPORTPARAMS);
}
/*
* start an association
*/
static void
ray_start_assoc(struct ray_softc *sc)
{
struct ifnet *ifp;
RAY_DPRINTFN(RAY_DBG_SUBR | RAY_DBG_STARTJOIN,
("ray%d: ray_start_assoc\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
ray_cmd_cancel(sc, SCP_STARTASSOC);
if ((ifp->if_flags & IFF_RUNNING) == 0)
return;
else if (ray_cmd_is_running(sc, SCP_STARTASSOC))
return;
(void)ray_simple_cmd(sc, RAY_CMD_START_ASSOC, SCP_STARTASSOC);
}
/*
* complete association
*
* Part of ray_init, download, start_join control flow.
*/
static void
ray_start_assoc_done(struct ray_softc *sc, size_t ccs, u_int8_t status)
{
struct ifnet *ifp;
RAY_DPRINTFN(RAY_DBG_SUBR | RAY_DBG_STARTJOIN,
("ray%d: ray_start_assoc_done\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
ray_cmd_done(sc, SCP_STARTASSOC);
if (status == RAY_CCS_STATUS_FAIL) {
RAY_DPRINTFN(RAY_DBG_STARTJOIN,
("ray%d: START_ASSOC failed retrying \n", sc->unit));
ray_start_join_net(sc); /* XXX check */
} else {
sc->sc_havenet = 1;
ifp->if_flags &= ~IFF_OACTIVE;
RAY_DPRINTFN(RAY_DBG_STARTJOIN,
("ray%d: START_ASSOC waking ray_init\n",
sc->unit));
wakeup(ray_init);
}
return;
}
/*
* Subcommand functions that use the SCP_UPDATESUBCMD command
* (and are serialized with respect to other update sub commands
*/
/*
* Download start up structures to card.
*
* Part of ray_init, download, startjoin control flow.
*/
static void
ray_download_params(struct ray_softc *sc)
{
struct ray_mib_4 ray_mib_4_default;
struct ray_mib_5 ray_mib_5_default;
RAY_DPRINTFN(RAY_DBG_SUBR | RAY_DBG_STARTJOIN,
("ray%d: ray_download_params\n", sc->unit));
RAY_MAP_CM(sc);
ray_cmd_cancel(sc, SCP_UPD_STARTUP);
#define MIB4(m) ray_mib_4_default.##m
#define MIB5(m) ray_mib_5_default.##m
#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
*/
MIB4(mib_net_type) = sc->sc_d.np_net_type;
MIB4(mib_ap_status) = sc->sc_d.np_ap_status;
bcopy(sc->sc_d.np_ssid, MIB4(mib_ssid), IEEE80211_NWID_LEN);
MIB4(mib_scan_mode) = RAY_MIB_SCAN_MODE_DEFAULT;
MIB4(mib_apm_mode) = RAY_MIB_APM_MODE_DEFAULT;
bcopy(sc->sc_station_addr, MIB4(mib_mac_addr), ETHER_ADDR_LEN);
PUT2(MIB4(mib_frag_thresh), RAY_MIB_FRAG_THRESH_DEFAULT);
PUT2(MIB4(mib_dwell_time), RAY_MIB_DWELL_TIME_V4);
PUT2(MIB4(mib_beacon_period), RAY_MIB_BEACON_PERIOD_V4);
MIB4(mib_dtim_interval) = RAY_MIB_DTIM_INTERVAL_DEFAULT;
MIB4(mib_max_retry) = RAY_MIB_MAX_RETRY_DEFAULT;
MIB4(mib_ack_timo) = RAY_MIB_ACK_TIMO_DEFAULT;
MIB4(mib_sifs) = RAY_MIB_SIFS_DEFAULT;
MIB4(mib_difs) = RAY_MIB_DIFS_DEFAULT;
MIB4(mib_pifs) = RAY_MIB_PIFS_V4;
PUT2(MIB4(mib_rts_thresh), RAY_MIB_RTS_THRESH_DEFAULT);
PUT2(MIB4(mib_scan_dwell), RAY_MIB_SCAN_DWELL_V4);
PUT2(MIB4(mib_scan_max_dwell), RAY_MIB_SCAN_MAX_DWELL_V4);
MIB4(mib_assoc_timo) = RAY_MIB_ASSOC_TIMO_DEFAULT;
MIB4(mib_adhoc_scan_cycle) = RAY_MIB_ADHOC_SCAN_CYCLE_DEFAULT;
MIB4(mib_infra_scan_cycle) = RAY_MIB_INFRA_SCAN_CYCLE_DEFAULT;
MIB4(mib_infra_super_scan_cycle) = RAY_MIB_INFRA_SUPER_SCAN_CYCLE_DEFAULT;
MIB4(mib_promisc) = RAY_MIB_PROMISC_DEFAULT;
PUT2(MIB4(mib_uniq_word), RAY_MIB_UNIQ_WORD_DEFAULT);
MIB4(mib_slot_time) = RAY_MIB_SLOT_TIME_V4;
MIB4(mib_roam_low_snr_thresh) = RAY_MIB_ROAM_LOW_SNR_THRESH_DEFAULT;
MIB4(mib_low_snr_count) = RAY_MIB_LOW_SNR_COUNT_DEFAULT;
MIB4(mib_infra_missed_beacon_count)= RAY_MIB_INFRA_MISSED_BEACON_COUNT_DEFAULT;
MIB4(mib_adhoc_missed_beacon_count)= RAY_MIB_ADHOC_MISSED_BEACON_COUNT_DEFAULT;
MIB4(mib_country_code) = RAY_MIB_COUNTRY_CODE_DEFAULT;
MIB4(mib_hop_seq) = RAY_MIB_HOP_SEQ_DEFAULT;
MIB4(mib_hop_seq_len) = RAY_MIB_HOP_SEQ_LEN_V4;
MIB4(mib_cw_max) = RAY_MIB_CW_MAX_V4;
MIB4(mib_cw_min) = RAY_MIB_CW_MIN_V4;
MIB4(mib_noise_filter_gain) = RAY_MIB_NOISE_FILTER_GAIN_DEFAULT;
MIB4(mib_noise_limit_offset) = RAY_MIB_NOISE_LIMIT_OFFSET_DEFAULT;
MIB4(mib_rssi_thresh_offset) = RAY_MIB_RSSI_THRESH_OFFSET_DEFAULT;
MIB4(mib_busy_thresh_offset) = RAY_MIB_BUSY_THRESH_OFFSET_DEFAULT;
MIB4(mib_sync_thresh) = RAY_MIB_SYNC_THRESH_DEFAULT;
MIB4(mib_test_mode) = RAY_MIB_TEST_MODE_DEFAULT;
MIB4(mib_test_min_chan) = RAY_MIB_TEST_MIN_CHAN_DEFAULT;
MIB4(mib_test_max_chan) = RAY_MIB_TEST_MAX_CHAN_DEFAULT;
/*
* Firmware version 5 defaults - see if_raymib.h for details
*/
MIB5(mib_net_type) = sc->sc_d.np_net_type;
MIB4(mib_ap_status) = sc->sc_d.np_ap_status;
bcopy(sc->sc_d.np_ssid, MIB5(mib_ssid), IEEE80211_NWID_LEN);
MIB5(mib_scan_mode) = RAY_MIB_SCAN_MODE_DEFAULT;
MIB5(mib_apm_mode) = RAY_MIB_APM_MODE_DEFAULT;
bcopy(sc->sc_station_addr, MIB5(mib_mac_addr), ETHER_ADDR_LEN);
PUT2(MIB5(mib_frag_thresh), RAY_MIB_FRAG_THRESH_DEFAULT);
PUT2(MIB5(mib_dwell_time), RAY_MIB_DWELL_TIME_V5);
PUT2(MIB5(mib_beacon_period), RAY_MIB_BEACON_PERIOD_V5);
MIB5(mib_dtim_interval) = RAY_MIB_DTIM_INTERVAL_DEFAULT;
MIB5(mib_max_retry) = RAY_MIB_MAX_RETRY_DEFAULT;
MIB5(mib_ack_timo) = RAY_MIB_ACK_TIMO_DEFAULT;
MIB5(mib_sifs) = RAY_MIB_SIFS_DEFAULT;
MIB5(mib_difs) = RAY_MIB_DIFS_DEFAULT;
MIB5(mib_pifs) = RAY_MIB_PIFS_V5;
PUT2(MIB5(mib_rts_thresh), RAY_MIB_RTS_THRESH_DEFAULT);
PUT2(MIB5(mib_scan_dwell), RAY_MIB_SCAN_DWELL_V5);
PUT2(MIB5(mib_scan_max_dwell), RAY_MIB_SCAN_MAX_DWELL_V5);
MIB5(mib_assoc_timo) = RAY_MIB_ASSOC_TIMO_DEFAULT;
MIB5(mib_adhoc_scan_cycle) = RAY_MIB_ADHOC_SCAN_CYCLE_DEFAULT;
MIB5(mib_infra_scan_cycle) = RAY_MIB_INFRA_SCAN_CYCLE_DEFAULT;
MIB5(mib_infra_super_scan_cycle) = RAY_MIB_INFRA_SUPER_SCAN_CYCLE_DEFAULT;
MIB5(mib_promisc) = RAY_MIB_PROMISC_DEFAULT;
PUT2(MIB5(mib_uniq_word), RAY_MIB_UNIQ_WORD_DEFAULT);
MIB5(mib_slot_time) = RAY_MIB_SLOT_TIME_V5;
MIB5(mib_roam_low_snr_thresh) = RAY_MIB_ROAM_LOW_SNR_THRESH_DEFAULT;
MIB5(mib_low_snr_count) = RAY_MIB_LOW_SNR_COUNT_DEFAULT;
MIB5(mib_infra_missed_beacon_count)= RAY_MIB_INFRA_MISSED_BEACON_COUNT_DEFAULT;
MIB5(mib_adhoc_missed_beacon_count)= RAY_MIB_ADHOC_MISSED_BEACON_COUNT_DEFAULT;
MIB5(mib_country_code) = RAY_MIB_COUNTRY_CODE_DEFAULT;
MIB5(mib_hop_seq) = RAY_MIB_HOP_SEQ_DEFAULT;
MIB5(mib_hop_seq_len) = RAY_MIB_HOP_SEQ_LEN_V5;
PUT2(MIB5(mib_cw_max), RAY_MIB_CW_MAX_V5);
PUT2(MIB5(mib_cw_min), RAY_MIB_CW_MIN_V5);
MIB5(mib_noise_filter_gain) = RAY_MIB_NOISE_FILTER_GAIN_DEFAULT;
MIB5(mib_noise_limit_offset) = RAY_MIB_NOISE_LIMIT_OFFSET_DEFAULT;
MIB5(mib_rssi_thresh_offset) = RAY_MIB_RSSI_THRESH_OFFSET_DEFAULT;
MIB5(mib_busy_thresh_offset) = RAY_MIB_BUSY_THRESH_OFFSET_DEFAULT;
MIB5(mib_sync_thresh) = RAY_MIB_SYNC_THRESH_DEFAULT;
MIB5(mib_test_mode) = RAY_MIB_TEST_MODE_DEFAULT;
MIB5(mib_test_min_chan) = RAY_MIB_TEST_MIN_CHAN_DEFAULT;
MIB5(mib_test_max_chan) = RAY_MIB_TEST_MAX_CHAN_DEFAULT;
MIB5(mib_allow_probe_resp) = RAY_MIB_ALLOW_PROBE_RESP_DEFAULT;
MIB5(mib_privacy_must_start) = sc->sc_d.np_priv_start;
MIB5(mib_privacy_can_join) = sc->sc_d.np_priv_join;
MIB5(mib_basic_rate_set[0]) = sc->sc_d.np_def_txrate;
/* XXX i think that this can go when ray_stop is fixed or
* XXX do we need it for safety for the case where the card is
* XXX busy but the driver hasn't got the state e.g. over an unload?
* XXX does that mean attach should do this? */
if (!RAY_ECF_READY(sc)) {
printf("ray%d: ray_download_params device busy\n", sc->unit);
ray_reset(sc);
}
if (sc->sc_version == RAY_ECFS_BUILD_4)
ray_write_region(sc, RAY_HOST_TO_ECF_BASE,
&ray_mib_4_default, sizeof(ray_mib_4_default));
else
ray_write_region(sc, RAY_HOST_TO_ECF_BASE,
&ray_mib_5_default, sizeof(ray_mib_5_default));
if (!ray_simple_cmd(sc, RAY_CMD_START_PARAMS, SCP_UPD_STARTUP))
printf("ray%d: ray_download_params can't issue command\n",
sc->unit);
RAY_DPRINTFN(RAY_DBG_STARTJOIN,
("ray%d: ray_download_params awaiting completion\n", sc->unit));
return;
}
/*
* Download completion routine.
*
* Part of ray_init, download, start_join control flow.
*
* As START_PARAMS is an update command ray_check_ccs has checked the
* ccs status and re-scheduled timeouts if needed.
*/
static void
ray_download_done(struct ray_softc *sc)
{
RAY_DPRINTFN(RAY_DBG_SUBR | RAY_DBG_STARTJOIN,
("ray%d: ray_download_done\n", sc->unit));
RAY_MAP_CM(sc);
ray_cmd_done(sc, SCP_UPD_STARTUP);
/*
* Fake the current network parameter settings so start_join_net
* will not bother updating them to the card (we would need to
* zero these anyway, so we might as well copy).
*/
sc->sc_c.np_net_type = sc->sc_d.np_net_type;
bcopy(sc->sc_d.np_ssid, sc->sc_c.np_ssid, IEEE80211_NWID_LEN);
ray_start_join_net(sc);
}
/*
* start or join a network
*/
static void
ray_start_join_net(struct ray_softc *sc)
{
struct ray_net_params np;
struct ifnet *ifp;
size_t ccs;
int cmd, update;
RAY_DPRINTFN(RAY_DBG_SUBR | RAY_DBG_STARTJOIN,
("ray%d: ray_start_join_net\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
ray_cmd_cancel(sc, SCP_UPD_STARTJOIN);
if ((ifp->if_flags & IFF_RUNNING) == 0)
return;
/* XXX check we may not want to re-issue */
if (ray_cmd_is_running(sc, SCP_UPDATESUBCMD)) {
RAY_DPRINTFN(RAY_DBG_STARTJOIN,
("ray%d: ray_start_join_net already running\n", sc->unit));
ray_cmd_schedule(sc, SCP_UPD_STARTJOIN);
return;
}
if (sc->sc_d.np_net_type == RAY_MIB_NET_TYPE_ADHOC)
cmd = RAY_CMD_START_NET;
else
cmd = RAY_CMD_JOIN_NET;
if (!ray_alloc_ccs(sc, &ccs, cmd, SCP_UPD_STARTJOIN)) {
printf("ray%d: ray_start_join_net can't get a CCS\n", sc->unit);
ray_reset(sc);
}
update = 0;
if (bcmp(sc->sc_c.np_ssid, sc->sc_d.np_ssid, IEEE80211_NWID_LEN))
update++;
if (sc->sc_c.np_net_type != sc->sc_d.np_net_type)
update++;
if (update) {
sc->sc_havenet = 0;
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;
ray_write_region(sc, RAY_HOST_TO_ECF_BASE, &np, sizeof(np));
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_net, c_upd_param, 1);
} else
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_net, c_upd_param, 0);
RAY_DPRINTFN(RAY_DBG_STARTJOIN,
("ray%d: ray_start_join_net %s updating nw params\n",
sc->unit, update?"is":"not"));
if (!ray_issue_cmd(sc, ccs, SCP_UPD_STARTJOIN)) {
printf("ray%d: ray_start_join_net can't issue cmd\n", sc->unit);
ray_reset(sc);
}
RAY_DPRINTFN(RAY_DBG_STARTJOIN,
("ray%d: ray_start_join_net awaiting completion\n", sc->unit));
#if RAY_NEED_STARTJOIN_TIMO
sc->sj_timerh = timeout(ray_start_join_timo, sc, RAY_SJ_TIMEOUT);
#endif /* RAY_NEED_STARTJOIN_TIMO */
}
#if RAY_NEED_STARTJOIN_TIMO
/*
* Back stop catcher for start_join command. The NetBSD driver
* suggests that they need it to catch a bug in the firmware or the
* parameters they use - they are not sure. I'll just panic as I seem
* to get interrupts back fine and I have version 4 firmware.
*/
static void
ray_start_join_timo(void *xsc)
{
struct ray_softc *sc = xsc;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_start_join_timo\n", sc->unit));
RAY_MAP_CM(sc);
panic("ray%d: ray-start_join_timo occured\n", sc->unit);
return;
}
#endif /* RAY_NEED_STARTJOIN_TIMO */
/******************************************************************************
* XXX NOT KNF FROM HERE DOWN *
******************************************************************************/
/*
* Complete start command or intermediate step in join command.
*
* Part of ray_init, download, start_join control flow.
*/
static void
ray_start_join_done(sc, ccs, status)
struct ray_softc *sc;
size_t ccs;
u_int8_t status;
{
struct ifnet *ifp;
u_int8_t o_net_type;
RAY_DPRINTFN(RAY_DBG_SUBR | RAY_DBG_STARTJOIN,
("ray%d: ray_start_join_done\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
#if RAY_NEED_STARTJOIN_TIMO
untimeout(ray_start_join_timo, sc, sc->sj_timerh);
#endif /* RAY_NEED_STARTJOIN_TIMO */
ray_cmd_done(sc, SCP_UPD_STARTJOIN);
/*
* XXX This switch and the following test are badly done. I
* XXX need to take remedial action in each case branch and
* XXX return from there. Then remove the test.
* XXX FAIL comment
* XXX if we fired the start command we successfully set the card up
* XXX so just restart ray_start_join sequence and dont reset the card
* XXX may need to split download_done for this
* XXX FREE
* XXX not sure
* XXX BUSY
* XXX maybe timeout but why would we get an interrupt when
* XXX the card is not finished?
*/
switch (status) {
case RAY_CCS_STATUS_FREE:
case RAY_CCS_STATUS_BUSY:
printf("ray%d: ray_start_join_done status is FREE/BUSY - why?\n",
sc->unit);
break;
case RAY_CCS_STATUS_COMPLETE:
break;
case RAY_CCS_STATUS_FAIL:
printf("ray%d: ray_start_join_done status is FAIL - why?\n",
sc->unit);
sc->sc_havenet = 0;
break;
default:
printf("ray%d: ray_start_join_done unknown status 0x%x\n",
sc->unit, status);
break;
}
if (status != RAY_CCS_STATUS_COMPLETE)
return;
/*
* If the command completed correctly, get a few network parameters
* from the ccs and active the network.
*/
ray_read_region(sc, ccs, &sc->sc_c.p_1, sizeof(struct ray_cmd_net));
/* adjust values for buggy build 4 */
if (sc->sc_c.np_def_txrate == 0x55)
sc->sc_c.np_def_txrate = sc->sc_d.np_def_txrate;
if (sc->sc_c.np_encrypt == 0x55)
sc->sc_c.np_encrypt = sc->sc_d.np_encrypt;
/* card is telling us to update the network parameters */
if (sc->sc_c.np_upd_param) {
RAY_DPRINTFN(RAY_DBG_RECERR,
("ray%d: sj_done card updating parameters - why?\n", sc->unit));
o_net_type = sc->sc_c.np_net_type; /* XXX this may be wrong? */
ray_read_region(sc, RAY_HOST_TO_ECF_BASE,
&sc->sc_c.p_2, sizeof(struct ray_net_params));
if (sc->sc_c.np_net_type != o_net_type) {
printf("ray%d: sj_done card changing network type - why?\n",
sc->unit);
#if XXX
restart ray_start_join sequence
may need to split download_done for this
#endif
}
}
RAY_DNET_DUMP(sc, " after start/join network completed.");
/*
* Hurrah! The network is now active.
*
* Clearing IFF_OACTIVE will ensure that the system will queue packets.
* Just before we return from the interrupt context we check to
* see if packets have been queued.
*/
ray_cmd_schedule(sc, SCP_UPD_MCAST|SCP_UPD_PROMISC);
if (SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_cmd) == RAY_CMD_JOIN_NET)
ray_start_assoc(sc);
else {
sc->sc_havenet = 1;
ifp->if_flags &= ~IFF_OACTIVE;
RAY_DPRINTFN(RAY_DBG_STARTJOIN,
("ray%d: ray_start_join_done waking ray_init\n",
sc->unit));
wakeup(ray_init);
}
return;
}
/******************************************************************************
* XXX NOT KNF FROM HERE UP
******************************************************************************/
/*
* set the card in/out of promiscuous mode
*/
static void
ray_update_promisc(struct ray_softc *sc)
{
struct ifnet *ifp;
size_t ccs;
int promisc;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_update_promisc\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
ray_cmd_cancel(sc, SCP_UPD_PROMISC);
/* do the issue check before equality check */
promisc = !!(ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI));
if ((ifp->if_flags & IFF_RUNNING) == 0)
return;
else if (ray_cmd_is_running(sc, SCP_UPDATESUBCMD)) {
ray_cmd_schedule(sc, SCP_UPD_PROMISC);
return;
} else if (promisc == sc->sc_promisc)
return;
else if (!ray_alloc_ccs(sc,&ccs,RAY_CMD_UPDATE_PARAMS, SCP_UPD_PROMISC))
return;
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_update, c_paramid, RAY_MIB_PROMISC);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_update, c_nparam, 1);
SRAM_WRITE_1(sc, RAY_HOST_TO_ECF_BASE, promisc);
(void)ray_issue_cmd(sc, ccs, SCP_UPD_PROMISC);
}
/*
* update the parameter based on what the user passed in
*/
static void
ray_update_params(struct ray_softc *sc)
{
struct ifnet *ifp;
size_t ccs;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_update_params\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
ray_cmd_cancel(sc, SCP_UPD_UPDATEPARAMS);
if (!sc->sc_updreq) {
/* XXX do we need to wakeup here? */
return;
}
/* do the issue check before equality check */
if ((ifp->if_flags & IFF_RUNNING) == 0)
return;
else if (ray_cmd_is_running(sc, SCP_UPDATESUBCMD)) {
ray_cmd_schedule(sc, SCP_UPD_UPDATEPARAMS);
return;
} else if (!ray_alloc_ccs(sc, &ccs, RAY_CMD_UPDATE_PARAMS,
SCP_UPD_UPDATEPARAMS))
return;
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_update, c_paramid,
sc->sc_updreq->r_paramid);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_update, c_nparam, 1);
ray_write_region(sc, RAY_HOST_TO_ECF_BASE, sc->sc_updreq->r_data,
sc->sc_updreq->r_len);
(void)ray_issue_cmd(sc, ccs, SCP_UPD_UPDATEPARAMS);
}
/*
* set the multicast filter list
*/
static void
ray_update_mcast(struct ray_softc *sc)
{
struct ifnet *ifp;
struct ifmultiaddr *ifma;
size_t ccs, bufp;
int count;
RAY_DPRINTFN(RAY_DBG_SUBR, ("ray%d: ray_update_mcast\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
ray_cmd_cancel(sc, SCP_UPD_MCAST);
for (ifma = ifp->if_multiaddrs.lh_first, count = 0; ifma != NULL;
ifma = ifma->ifma_link.le_next, count++)
/* track this stuff even when not running */
if (count > 16) {
ifp->if_flags |= IFF_ALLMULTI;
ray_update_promisc(sc);
return;
} else if (ifp->if_flags & IFF_ALLMULTI) {
ifp->if_flags &= ~IFF_ALLMULTI;
ray_update_promisc(sc);
}
if ((ifp->if_flags & IFF_RUNNING) == 0)
return;
else if (ray_cmd_is_running(sc, SCP_UPDATESUBCMD)) {
ray_cmd_schedule(sc, SCP_UPD_MCAST);
return;
} else if (!ray_alloc_ccs(sc,&ccs, RAY_CMD_UPDATE_MCAST, SCP_UPD_MCAST))
return;
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_update_mcast, c_nmcast, count);
bufp = RAY_HOST_TO_ECF_BASE;
for (ifma = ifp->if_multiaddrs.lh_first; ifma != NULL;
ifma = ifma->ifma_link.le_next) {
ray_write_region(
sc,
bufp,
LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
ETHER_ADDR_LEN
);
bufp += ETHER_ADDR_LEN;
}
(void)ray_issue_cmd(sc, ccs, SCP_UPD_MCAST);
}
/*
* User issued commands
*/
/*
* issue a update params
*
* expected to be called in sleapable context -- intended for user stuff
*/
static int
ray_user_update_params(struct ray_softc *sc, struct ray_param_req *pr)
{
struct ifnet *ifp;
int rv;
RAY_DPRINTFN(RAY_DBG_SUBR,
("ray%d: ray_user_update_params\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
if ((ifp->if_flags & IFF_RUNNING) == 0) {
pr->r_failcause = RAY_FAILCAUSE_EDEVSTOP;
return (EIO);
}
if (pr->r_paramid > RAY_MIB_MAX) {
return (EINVAL);
}
/*
* Handle certain parameters specially
*/
switch (pr->r_paramid) {
case RAY_MIB_NET_TYPE:
if (sc->sc_c.np_net_type == *pr->r_data)
return (0);
sc->sc_d.np_net_type = *pr->r_data;
if (ifp->if_flags & IFF_RUNNING)
ray_start_join_net(sc);
return (0);
case RAY_MIB_SSID:
if (bcmp(sc->sc_c.np_ssid, pr->r_data, IEEE80211_NWID_LEN) == 0)
return (0);
bcopy(pr->r_data, sc->sc_d.np_ssid, IEEE80211_NWID_LEN);
if (ifp->if_flags & IFF_RUNNING)
ray_start_join_net(sc);
return (0);
case RAY_MIB_BASIC_RATE_SET:
sc->sc_d.np_def_txrate = *pr->r_data;
break;
case RAY_MIB_AP_STATUS: /* Unsupported */
case RAY_MIB_MAC_ADDR: /* XXX Need interface up */
case RAY_MIB_PROMISC: /* BPF */
return (EINVAL);
break;
default:
break;
}
if (pr->r_paramid > RAY_MIB_LASTUSER) {
return (EINVAL);
}
/* wait to be able to issue the command */
rv = 0;
while (ray_cmd_is_running(sc, SCP_UPD_UPDATEPARAMS) ||
ray_cmd_is_scheduled(sc, SCP_UPD_UPDATEPARAMS)) {
rv = tsleep(ray_update_params, 0|PCATCH, "cmd in use", 0);
if (rv)
return (rv);
if ((ifp->if_flags & IFF_RUNNING) == 0) {
pr->r_failcause = RAY_FAILCAUSE_EDEVSTOP;
return (EIO);
}
}
pr->r_failcause = RAY_FAILCAUSE_WAITING;
sc->sc_updreq = pr;
ray_cmd_schedule(sc, SCP_UPD_UPDATEPARAMS);
ray_check_scheduled(sc);
while (pr->r_failcause == RAY_FAILCAUSE_WAITING)
(void)tsleep(ray_update_params, 0, "waiting cmd", 0);
wakeup(ray_update_params);
return (0);
}
/*
* issue a report params
*
* expected to be called in sleapable context -- intended for user stuff
*/
static int
ray_user_report_params(struct ray_softc *sc, struct ray_param_req *pr)
{
struct ifnet *ifp;
int mib_sizes[] = RAY_MIB_SIZES;
int rv;
RAY_DPRINTFN(RAY_DBG_SUBR,
("ray%d: ray_user_report_params\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
if ((ifp->if_flags & IFF_RUNNING) == 0) {
pr->r_failcause = RAY_FAILCAUSE_EDEVSTOP;
return (EIO);
}
/* test for illegal values or immediate responses */
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 = 4;
else
*pr->r_data = 5;
break;
case RAY_MIB_CUR_BSSID:
bcopy(sc->sc_c.np_bss_id, pr->r_data, ETHER_ADDR_LEN);
break;
case RAY_MIB_CUR_INITED:
*pr->r_data = sc->sc_c.np_inited;
break;
case RAY_MIB_CUR_DEF_TXRATE:
*pr->r_data = sc->sc_c.np_def_txrate;
break;
case RAY_MIB_CUR_ENCRYPT:
*pr->r_data = sc->sc_c.np_encrypt;
break;
case RAY_MIB_CUR_NET_TYPE:
*pr->r_data = sc->sc_c.np_net_type;
break;
case RAY_MIB_CUR_SSID:
bcopy(sc->sc_c.np_ssid, pr->r_data, IEEE80211_NWID_LEN);
break;
case RAY_MIB_CUR_PRIV_START:
*pr->r_data = sc->sc_c.np_priv_start;
break;
case RAY_MIB_CUR_PRIV_JOIN:
*pr->r_data = sc->sc_c.np_priv_join;
break;
case RAY_MIB_DES_BSSID:
bcopy(sc->sc_d.np_bss_id, pr->r_data, ETHER_ADDR_LEN);
break;
case RAY_MIB_DES_INITED:
*pr->r_data = sc->sc_d.np_inited;
break;
case RAY_MIB_DES_DEF_TXRATE:
*pr->r_data = sc->sc_d.np_def_txrate;
break;
case RAY_MIB_DES_ENCRYPT:
*pr->r_data = sc->sc_d.np_encrypt;
break;
case RAY_MIB_DES_NET_TYPE:
*pr->r_data = sc->sc_d.np_net_type;
break;
case RAY_MIB_DES_SSID:
bcopy(sc->sc_d.np_ssid, pr->r_data, IEEE80211_NWID_LEN);
break;
case RAY_MIB_DES_PRIV_START:
*pr->r_data = sc->sc_d.np_priv_start;
break;
case RAY_MIB_DES_PRIV_JOIN:
*pr->r_data = sc->sc_d.np_priv_join;
break;
default:
return (EINVAL);
break;
}
pr->r_failcause = 0;
pr->r_len = mib_sizes[pr->r_paramid];
return (0);
}
/* wait to be able to issue the command */
rv = 0;
while (ray_cmd_is_running(sc, SCP_REPORTPARAMS)
|| ray_cmd_is_scheduled(sc, SCP_REPORTPARAMS)) {
rv = tsleep(ray_report_params, 0|PCATCH, "cmd in use", 0);
if (rv)
return (rv);
if ((ifp->if_flags & IFF_RUNNING) == 0) {
pr->r_failcause = RAY_FAILCAUSE_EDEVSTOP;
return (EIO);
}
}
pr->r_failcause = RAY_FAILCAUSE_WAITING;
sc->sc_repreq = pr;
ray_cmd_schedule(sc, SCP_REPORTPARAMS);
ray_check_scheduled(sc);
while (pr->r_failcause == RAY_FAILCAUSE_WAITING)
(void)tsleep(ray_report_params, 0, "waiting cmd", 0);
wakeup(ray_report_params);
return (0);
}
/*
* return the error counters
*/
static int
ray_user_report_stats(struct ray_softc *sc, struct ray_stats_req *sr)
{
struct ifnet *ifp;
RAY_DPRINTFN(RAY_DBG_SUBR,
("ray%d: ray_user_report_stats\n", sc->unit));
RAY_MAP_CM(sc);
ifp = &sc->arpcom.ac_if;
if ((ifp->if_flags & IFF_RUNNING) == 0) {
return (EIO);
}
sr->rxoverflow = sc->sc_rxoverflow;
sr->rxcksum = sc->sc_rxcksum;
sr->rxhcksum = sc->sc_rxhcksum;
sr->rxnoise = sc->sc_rxnoise;
return (0);
}
/******************************************************************************
* XXX NOT KNF FROM HERE DOWN
******************************************************************************/
/*
* Routines to read from/write to the attribute memory.
*
* Taken from if_xe.c.
*
* Until there is a real way of accessing the attribute memory from a driver
* these have to stay.
*
* The hack to use the crdread/crdwrite device functions causes the attribute
* memory to be remapped into the controller and looses the mapping of
* the common memory.
*
* We cheat by using PIOCSMEM and assume that the common memory window
* is in window 0 of the card structure.
*
* Also
* pccard/pcic.c/crdread does mark the unmapped window as inactive
* pccard/pccard.c/map_mem toggles the mapping of a window on
* successive calls
*
*/
#if (RAY_NEED_CM_REMAPPING | RAY_NEED_CM_FIXUP)
static void
ray_attr_getmap(struct ray_softc *sc)
{
struct ucred uc;
struct pcred pc;
struct proc p;
int result;
RAY_DPRINTFN(RAY_DBG_SUBR,
("ray%d: attempting to get map for common memory\n", sc->unit));
sc->md.window = 0;
p.p_cred = &pc;
p.p_cred->pc_ucred = &uc;
p.p_cred->pc_ucred->cr_uid = 0;
result = cdevsw[CARD_MAJOR]->d_ioctl(makedev(CARD_MAJOR, sc->slotnum), PIOCGMEM, (caddr_t)&sc->md, 0, &p);
return;
}
static void
ray_attr_cm(struct ray_softc *sc)
{
struct ucred uc;
struct pcred pc;
struct proc p;
RAY_DPRINTFN(RAY_DBG_CM,
("ray%d: attempting to remap common memory\n", sc->unit));
p.p_cred = &pc;
p.p_cred->pc_ucred = &uc;
p.p_cred->pc_ucred->cr_uid = 0;
cdevsw[CARD_MAJOR]->d_ioctl(makedev(CARD_MAJOR, sc->slotnum), PIOCSMEM, (caddr_t)&sc->md, 0, &p);
return;
}
#endif /* (RAY_NEED_CM_REMAPPING | RAY_NEED_CM_FIXUP) */
static int
ray_attr_write(struct ray_softc *sc, off_t offset, u_int8_t byte)
{
struct iovec iov;
struct uio uios;
int err;
iov.iov_base = &byte;
iov.iov_len = sizeof(byte);
uios.uio_iov = &iov;
uios.uio_iovcnt = 1;
uios.uio_offset = offset;
uios.uio_resid = sizeof(byte);
uios.uio_segflg = UIO_SYSSPACE;
uios.uio_rw = UIO_WRITE;
uios.uio_procp = 0;
err = cdevsw[CARD_MAJOR]->d_write(makedev(CARD_MAJOR, sc->slotnum), &uios, 0);
#if RAY_NEED_CM_REMAPPING
ray_attr_cm(sc);
#endif /* RAY_NEED_CM_REMAPPING */
return (err);
}
static int
ray_attr_read(struct ray_softc *sc, off_t offset, u_int8_t *buf, int size)
{
struct iovec iov;
struct uio uios;
int err;
iov.iov_base = buf;
iov.iov_len = size;
uios.uio_iov = &iov;
uios.uio_iovcnt = 1;
uios.uio_offset = offset;
uios.uio_resid = size;
uios.uio_segflg = UIO_SYSSPACE;
uios.uio_rw = UIO_READ;
uios.uio_procp = 0;
err = cdevsw[CARD_MAJOR]->d_read(makedev(CARD_MAJOR, sc->slotnum), &uios, 0);
#if RAY_NEED_CM_REMAPPING
ray_attr_cm(sc);
#endif /* RAY_NEED_CM_REMAPPING */
return (err);
}
static u_int8_t
ray_read_reg(sc, reg)
struct ray_softc *sc;
off_t reg;
{
u_int8_t byte;
ray_attr_read(sc, reg, &byte, 1);
return (byte);
}
#if RAY_DEBUG & RAY_DBG_MBUF
static void
ray_dump_mbuf(sc, m, s)
struct ray_softc *sc;
struct mbuf *m;
char *s;
{
u_int8_t *d, *ed;
u_int i;
char p[17];
printf("ray%d: %s mbuf dump:", sc->unit, s);
i = 0;
bzero(p, 17);
for (; m; m = m->m_next) {
d = mtod(m, u_int8_t *);
ed = d + m->m_len;
for (; d < ed; i++, d++) {
if ((i % 16) == 0) {
printf(" %s\n\t", p);
} else if ((i % 8) == 0)
printf(" ");
printf(" %02x", *d);
p[i % 16] = ((*d >= 0x20) && (*d < 0x80)) ? *d : '.';
}
}
if ((i - 1) % 16)
printf("%s\n", p);
}
#endif /* RAY_DEBUG & RAY_DBG_MBUF */
#endif /* NRAY */
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