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NetBSD/sys/dev/pcmcia/if_ray.c
christos 95e1ffb156 merge ktrace-lwp.
2005-12-11 12:16:03 +00:00

3341 lines
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/* $NetBSD: if_ray.c,v 1.59 2005/12/11 12:23:23 christos 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.
*/
/*
* Driver for the Raylink (Raytheon) / WebGear IEEE 802.11 (FH) WLANs
*
* 2-way communication with the card is through command structures
* stored in shared ram. To communicate with the card a free
* command structure is filled in and then the card is interrupted.
* The card does the same with a different set of command structures.
* Only one command can be processed at a time. This is indicated
* by the interrupt having not been cleared since it was last set.
* The bit is cleared when the command has been processed (although
* it may not yet be complete).
*
* This driver was only tested with the Aviator 2.4 wireless
* The author didn't have the pro version or raylink to test
* with.
*
* N.B. Its unclear yet whether the Aviator 2.4 cards interoperate
* with other 802.11 FH 2Mbps cards, since this was also untested.
* Given the nature of the buggy build 4 firmware there may be problems.
*
* Authentication added by Steve Weiss <srw@alum.mit.edu> based on
* advice from Corey Thomas (author of the Linux RayLink driver).
* Authentication is currently limited to adhoc networks, and was
* added to support a requirement of the newest Windows drivers for
* the RayLink. Tested with Aviator Pro (firmware 5.63) on Win98.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_ray.c,v 1.59 2005/12/11 12:23:23 christos Exp $");
#include "opt_inet.h"
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/callout.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_ether.h>
#include <net/if_media.h>
#include <net/if_llc.h>
#include <net80211/ieee80211.h>
#include <net80211/ieee80211_ioctl.h>
#include <net/if_media.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/if_inarp.h>
#endif
#if NBPFILTER > 0
#include <net/bpf.h>
#include <net/bpfdesc.h>
#endif
#include <machine/cpu.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/pcmcia/pcmciareg.h>
#include <dev/pcmcia/pcmciavar.h>
#include <dev/pcmcia/pcmciadevs.h>
#include <dev/pcmcia/if_rayreg.h>
#define RAY_DEBUG
#ifndef RAY_PID_COUNTRY_CODE_DEFAULT
#define RAY_PID_COUNTRY_CODE_DEFAULT RAY_PID_COUNTRY_CODE_USA
#endif
/* amount of time to poll for non-return of certain command status */
#ifndef RAY_CHECK_CCS_TIMEOUT
#define RAY_CHECK_CCS_TIMEOUT (hz / 2)
#endif
/* ammount of time to consider start/join failed */
#ifndef RAY_START_TIMEOUT
#define RAY_START_TIMEOUT (30 * hz)
#endif
/*
* if a command cannot execute because device is busy try later
* this is also done after interrupts and other command timeouts
* so we can use a large value safely.
*/
#ifndef RAY_CHECK_SCHED_TIMEOUT
#define RAY_CHECK_SCHED_TIMEOUT (hz) /* XXX 5 */
#endif
#ifndef RAY_MODE_DEFAULT
#define RAY_MODE_DEFAULT SC_MODE_ADHOC
#endif
#ifndef RAY_DEF_NWID
#define RAY_DEF_NWID "NETWORK_NAME"
#endif
/*
* The number of times the HW is reset in 30s before disabling.
* This is needed because resets take ~2s and currently pcmcia
* spins for the reset.
*/
#ifndef RAY_MAX_RESETS
#define RAY_MAX_RESETS 3
#endif
/*
* Types
*/
struct ray_softc {
struct device sc_dev;
struct ethercom sc_ec;
struct ifmedia sc_media;
struct pcmcia_function *sc_pf;
void *sc_ih;
void *sc_sdhook;
void *sc_pwrhook;
int sc_attached;
int sc_flags; /*. misc flags */
#define RAY_FLAGS_RESUMEINIT 0x0001
int sc_resetloop;
struct callout sc_check_ccs_ch;
struct callout sc_check_scheduled_ch;
struct callout sc_reset_resetloop_ch;
struct callout sc_disable_ch;
struct callout sc_start_join_timo_ch;
struct ray_ecf_startup sc_ecf_startup;
struct ray_startup_params_head sc_startup;
union {
struct ray_startup_params_tail_5 u_params_5;
struct ray_startup_params_tail_4 u_params_4;
} sc_u;
u_int8_t sc_ccsinuse[64]; /* ccs in use -- not for tx */
u_int sc_txfree; /* a free count for efficiency */
u_int8_t sc_bssid[ETHER_ADDR_LEN]; /* current net values */
u_int8_t sc_authid[ETHER_ADDR_LEN]; /* ID of authenticating
station */
struct ieee80211_nwid sc_cnwid; /* last nwid */
struct ieee80211_nwid sc_dnwid; /* desired nwid */
u_int8_t sc_omode; /* old operating mode SC_MODE_xx */
u_int8_t sc_mode; /* current operating mode SC_MODE_xx */
u_int8_t sc_countrycode; /* current country code */
u_int8_t sc_dcountrycode; /* desired country code */
int sc_havenet; /* true if we have acquired a network */
bus_size_t sc_txpad; /* tib size plus "phy" size */
u_int8_t sc_deftxrate; /* default transfer rate */
u_int8_t sc_encrypt;
u_int8_t sc_authstate; /* authentication state */
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 */
bus_size_t sc_startccs; /* ccs of start/join */
u_int sc_startcmd; /* cmd (start | join) */
int sc_checkcounters;
u_int64_t sc_rxoverflow;
u_int64_t sc_rxcksum;
u_int64_t sc_rxhcksum;
u_int8_t sc_rxnoise;
/* use to return values to the user */
struct ray_param_req *sc_repreq;
struct ray_param_req *sc_updreq;
bus_space_tag_t sc_memt;
bus_space_handle_t sc_memh;
#ifdef RAY_DO_SIGLEV
struct ray_siglev sc_siglevs[RAY_NSIGLEVRECS];
#endif
};
#define sc_ccrt sc_pf->pf_ccrt
#define sc_ccrh sc_pf->pf_ccrh
#define sc_ccroff sc_pf->pf_ccr_offset
#define sc_startup_4 sc_u.u_params_4
#define sc_startup_5 sc_u.u_params_5
#define sc_version sc_ecf_startup.e_fw_build_string
#define sc_tibsize sc_ecf_startup.e_tib_size
#define sc_if sc_ec.ec_if
#define sc_xname sc_dev.dv_xname
/* modes of operation */
#define SC_MODE_ADHOC 0 /* ad-hoc mode */
#define SC_MODE_INFRA 1 /* infrastructure mode */
/* 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 IFM_ADHOC \
IFM_MAKEWORD(IFM_IEEE80211, IFM_IEEE80211_FH2, IFM_IEEE80211_ADHOC, 0)
#define IFM_INFRA \
IFM_MAKEWORD(IFM_IEEE80211, IFM_IEEE80211_FH2, 0, 0)
typedef void (*ray_cmd_func_t)(struct ray_softc *);
#define SC_BUILD_5 0x5
#define SC_BUILD_4 0x55
/* sc_authstate */
#define RAY_AUTH_UNAUTH 0
#define RAY_AUTH_WAITING 1
#define RAY_AUTH_AUTH 2
#define RAY_AUTH_NEEDED 3
#define OPEN_AUTH_REQUEST 1
#define OPEN_AUTH_RESPONSE 2
#define BROADCAST_DEAUTH 0xc0
static int ray_alloc_ccs(struct ray_softc *, bus_size_t *, u_int, u_int);
static bus_size_t ray_fill_in_tx_ccs(struct ray_softc *, size_t,
u_int, u_int);
static int ray_validate_config(struct pcmcia_config_entry *);
static void ray_attach(struct device *, struct device *, void *);
static ray_cmd_func_t ray_ccs_done(struct ray_softc *, bus_size_t);
static void ray_check_ccs(void *);
static void ray_check_scheduled(void *);
static void ray_cmd_cancel(struct ray_softc *, int);
static void ray_cmd_schedule(struct ray_softc *, int);
static void ray_cmd_ran(struct ray_softc *, int);
static int ray_cmd_is_running(struct ray_softc *, int);
static int ray_cmd_is_scheduled(struct ray_softc *, int);
static void ray_cmd_done(struct ray_softc *, int);
static int ray_detach(struct device *, int);
static int ray_activate(struct device *, enum devact);
static void ray_disable(struct ray_softc *);
static void ray_download_params(struct ray_softc *);
static int ray_enable(struct ray_softc *);
static u_int ray_find_free_tx_ccs(struct ray_softc *, u_int);
static u_int8_t ray_free_ccs(struct ray_softc *, bus_size_t);
static void ray_free_ccs_chain(struct ray_softc *, u_int);
static void ray_if_start(struct ifnet *);
static int ray_init(struct ray_softc *);
static int ray_intr(void *);
static void ray_intr_start(struct ray_softc *);
static int ray_ioctl(struct ifnet *, u_long, caddr_t);
static int ray_issue_cmd(struct ray_softc *, bus_size_t, u_int);
static int ray_match(struct device *, struct cfdata *, void *);
static int ray_media_change(struct ifnet *);
static void ray_media_status(struct ifnet *, struct ifmediareq *);
void ray_power(int, void *);
static ray_cmd_func_t ray_rccs_intr(struct ray_softc *, bus_size_t);
static void ray_read_region(struct ray_softc *, bus_size_t,void *,size_t);
static void ray_recv(struct ray_softc *, bus_size_t);
static void ray_recv_auth(struct ray_softc *, struct ieee80211_frame *);
static void ray_report_params(struct ray_softc *);
static void ray_reset(struct ray_softc *);
static void ray_reset_resetloop(void *);
static int ray_send_auth(struct ray_softc *, u_int8_t *, u_int8_t);
static void ray_set_pending(struct ray_softc *, u_int);
static void ray_shutdown(void *);
static int ray_simple_cmd(struct ray_softc *, u_int, u_int);
static void ray_start_assoc(struct ray_softc *);
static void ray_start_join_net(struct ray_softc *);
static ray_cmd_func_t ray_start_join_net_done(struct ray_softc *,
u_int, bus_size_t, u_int);
static void ray_start_join_timo(void *);
static void ray_stop(struct ray_softc *);
static void ray_update_error_counters(struct ray_softc *);
static void ray_update_mcast(struct ray_softc *);
static ray_cmd_func_t ray_update_params_done(struct ray_softc *,
bus_size_t, u_int);
static void ray_update_params(struct ray_softc *);
static void ray_update_promisc(struct ray_softc *);
static void ray_update_subcmd(struct ray_softc *);
static int ray_user_report_params(struct ray_softc *,
struct ray_param_req *);
static int ray_user_update_params(struct ray_softc *,
struct ray_param_req *);
static void ray_write_region(struct ray_softc *,bus_size_t,void *,size_t);
#ifdef RAY_DO_SIGLEV
static void ray_update_siglev(struct ray_softc *, u_int8_t *, u_int8_t);
#endif
#ifdef RAY_DEBUG
static int ray_debug = 0;
static int ray_debug_xmit_sum = 0;
static int ray_debug_dump_desc = 0;
static int ray_debug_dump_rx = 0;
static int ray_debug_dump_tx = 0;
static struct timeval rtv, tv1, tv2, *ttp, *ltp;
#define RAY_DPRINTF(x) do { if (ray_debug) { \
struct timeval *ttmp; \
microtime(ttp); \
timersub(ttp, ltp, &rtv); \
ttmp = ttp; ttp = ltp; ltp = ttmp; \
printf("%ld:%ld %ld:%06ld: ", \
(long int)ttp->tv_sec, \
(long int)ttp->tv_usec, \
(long int)rtv.tv_sec, \
(long int)rtv.tv_usec); \
printf x ; \
} } while (0)
#define RAY_DPRINTF_XMIT(x) do { if (ray_debug_xmit_sum) { \
struct timeval *ttmp; \
microtime(ttp); \
timersub(ttp, ltp, &rtv); \
ttmp = ttp; ttp = ltp; ltp = ttmp; \
printf("%ld:%ld %ld:%06ld: ", \
(long int)ttp->tv_sec, \
(long int)ttp->tv_usec, \
(long int)rtv.tv_sec, \
(long int)rtv.tv_usec); \
printf x ; \
} } while (0)
#define HEXDF_NOCOMPRESS 0x1
#define HEXDF_NOOFFSET 0x2
#define HEXDF_NOASCII 0x4
void hexdump(const u_int8_t *, int, int, int, int);
static void ray_dump_mbuf(struct ray_softc *, struct mbuf *);
#else /* !RAY_DEBUG */
#define RAY_DPRINTF(x)
#define RAY_DPRINTF_XMIT(x)
#endif /* !RAY_DEBUG */
/*
* macros for writing to various regions in the mapped memory space
*/
/* use already mapped ccrt */
#define REG_WRITE(sc, off, val) \
bus_space_write_1((sc)->sc_ccrt, (sc)->sc_ccrh, ((sc)->sc_ccroff + (off)), (val))
#define REG_READ(sc, off) \
bus_space_read_1((sc)->sc_ccrt, (sc)->sc_ccrh, ((sc)->sc_ccroff + (off)))
#define SRAM_READ_1(sc, 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 SRAM_WRITE_1(sc, 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))
/*
* Macros of general usefulness
*/
#define M_PULLUP(m, s) do { \
if ((m)->m_len < (s)) \
(m) = m_pullup((m), (s)); \
} while (0)
#define RAY_ECF_READY(sc) (!(REG_READ(sc, RAY_ECFIR) & RAY_ECSIR_IRQ))
#define RAY_ECF_START_CMD(sc) REG_WRITE(sc, RAY_ECFIR, RAY_ECSIR_IRQ)
#define RAY_GET_INDEX(ccs) (((ccs) - RAY_CCS_BASE) / RAY_CCS_SIZE)
#define RAY_GET_CCS(i) (RAY_CCS_BASE + (i) * RAY_CCS_SIZE)
/*
* Globals
*/
static u_int8_t llc_snapid[6] = { LLC_SNAP_LSAP, LLC_SNAP_LSAP, LLC_UI, };
/* based on bit index in SCP_xx */
static ray_cmd_func_t ray_cmdtab[] = {
ray_update_subcmd, /* SCP_UPDATESUBCMD */
ray_start_assoc, /* SCP_STARTASSOC */
ray_report_params, /* SCP_REPORTPARAMS */
ray_intr_start /* 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);
/* autoconf information */
CFATTACH_DECL(ray, sizeof(struct ray_softc),
ray_match, ray_attach, ray_detach, ray_activate);
/*
* Config Routines
*/
static int
ray_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct pcmcia_attach_args *pa = aux;
#ifdef RAY_DEBUG
if (!ltp) {
/* initialize timestamp XXX */
ttp = &tv1;
ltp = &tv2;
microtime(ltp);
}
#endif
return (pa->manufacturer == PCMCIA_VENDOR_RAYTHEON
&& pa->product == PCMCIA_PRODUCT_RAYTHEON_WLAN);
}
static int
ray_validate_config(cfe)
struct pcmcia_config_entry *cfe;
{
if (cfe->iftype != PCMCIA_IFTYPE_IO ||
cfe->num_memspace != 1 ||
cfe->num_iospace != 0 ||
cfe->memspace[0].length != RAY_SRAM_MEM_SIZE)
return (EINVAL);
return (0);
}
static void
ray_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct ray_softc *sc = (void *)self;
struct pcmcia_attach_args *pa = aux;
struct ifnet *ifp = &sc->sc_if;
struct pcmcia_config_entry *cfe;
struct ray_ecf_startup *ep;
int error;
sc->sc_pf = pa->pf;
/*XXXmem8|common*/
error = pcmcia_function_configure(pa->pf, ray_validate_config);
if (error) {
aprint_error("%s: configure failed, error=%d\n", self->dv_xname,
error);
return;
}
cfe = pa->pf->cfe;
sc->sc_memt = cfe->memspace[0].handle.memt;
sc->sc_memh = cfe->memspace[0].handle.memh;
callout_init(&sc->sc_reset_resetloop_ch);
callout_init(&sc->sc_disable_ch);
callout_init(&sc->sc_start_join_timo_ch);
error = ray_enable(sc);
if (error)
goto fail;
/* get startup results */
ep = &sc->sc_ecf_startup;
ray_read_region(sc, RAY_ECF_TO_HOST_BASE, ep,
sizeof(sc->sc_ecf_startup));
/* check to see that card initialized properly */
if (ep->e_status != RAY_ECFS_CARD_OK) {
aprint_error("%s: card failed self test: status %d\n",
self->dv_xname, sc->sc_ecf_startup.e_status);
goto fail2;
}
/* check firmware version */
if (sc->sc_version != SC_BUILD_4 && sc->sc_version != SC_BUILD_5) {
aprint_error("%s: unsupported firmware version %d\n",
self->dv_xname, ep->e_fw_build_string);
goto fail2;
}
/* clear any interrupt if present */
REG_WRITE(sc, RAY_HCSIR, 0);
/*
* set the parameters that will survive stop/init
*/
memset(&sc->sc_dnwid, 0, sizeof(sc->sc_dnwid));
sc->sc_dnwid.i_len = strlen(RAY_DEF_NWID);
if (sc->sc_dnwid.i_len > IEEE80211_NWID_LEN)
sc->sc_dnwid.i_len = IEEE80211_NWID_LEN;
if (sc->sc_dnwid.i_len > 0)
memcpy(sc->sc_dnwid.i_nwid, RAY_DEF_NWID, sc->sc_dnwid.i_len);
memcpy(&sc->sc_cnwid, &sc->sc_dnwid, sizeof(sc->sc_cnwid));
sc->sc_omode = sc->sc_mode = RAY_MODE_DEFAULT;
sc->sc_countrycode = sc->sc_dcountrycode =
RAY_PID_COUNTRY_CODE_DEFAULT;
sc->sc_flags &= ~RAY_FLAGS_RESUMEINIT;
/*
* attach the interface
*/
/* The version isn't the most accurate way, but it's easy. */
aprint_normal("%s: firmware version %d\n", self->dv_xname,
sc->sc_version);
if (sc->sc_version != SC_BUILD_4)
aprint_normal("%s: supported rates %0x:%0x:%0x:%0x:%0x:%0x:%0x:%0x\n",
self->dv_xname, ep->e_rates[0], ep->e_rates[1],
ep->e_rates[2], ep->e_rates[3], ep->e_rates[4],
ep->e_rates[5], ep->e_rates[6], ep->e_rates[7]);
aprint_normal("%s: 802.11 address %s\n", self->dv_xname,
ether_sprintf(ep->e_station_addr));
memcpy(ifp->if_xname, self->dv_xname, IFNAMSIZ);
ifp->if_softc = sc;
ifp->if_start = ray_if_start;
ifp->if_ioctl = ray_ioctl;
ifp->if_mtu = ETHERMTU;
ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST;
IFQ_SET_READY(&ifp->if_snd);
if_attach(ifp);
ether_ifattach(ifp, ep->e_station_addr);
/* need enough space for ieee80211_header + (snap or e2) */
ifp->if_hdrlen =
sizeof(struct ieee80211_frame) + sizeof(struct ether_header);
ifmedia_init(&sc->sc_media, 0, ray_media_change, ray_media_status);
ifmedia_add(&sc->sc_media, IFM_ADHOC, 0, 0);
ifmedia_add(&sc->sc_media, IFM_INFRA, 0, 0);
if (sc->sc_mode == SC_MODE_ADHOC)
ifmedia_set(&sc->sc_media, IFM_ADHOC);
else
ifmedia_set(&sc->sc_media, IFM_INFRA);
sc->sc_sdhook = shutdownhook_establish(ray_shutdown, sc);
sc->sc_pwrhook = powerhook_establish(ray_power, sc);
/* The attach is successful. */
sc->sc_attached = 1;
ray_disable(sc);
return;
fail2:
ray_disable(sc);
fail:
pcmcia_function_unconfigure(pa->pf);
}
static int
ray_activate(dev, act)
struct device *dev;
enum devact act;
{
struct ray_softc *sc = (struct ray_softc *)dev;
struct ifnet *ifp = &sc->sc_if;
int s;
int rv = 0;
RAY_DPRINTF(("%s: activate\n", sc->sc_xname));
s = splnet();
switch (act) {
case DVACT_ACTIVATE:
rv = EOPNOTSUPP;
break;
case DVACT_DEACTIVATE:
if_deactivate(ifp);
break;
}
splx(s);
return (rv);
}
static int
ray_detach(self, flags)
struct device *self;
int flags;
{
struct ray_softc *sc;
struct ifnet *ifp;
sc = (struct ray_softc *)self;
ifp = &sc->sc_if;
RAY_DPRINTF(("%s: detach\n", sc->sc_xname));
if (!sc->sc_attached)
return (0);
if (sc->sc_pwrhook)
powerhook_disestablish(sc->sc_pwrhook);
if (sc->sc_sdhook)
shutdownhook_disestablish(sc->sc_sdhook);
if (sc->sc_if.if_flags & IFF_UP)
ray_disable(sc);
ifmedia_delete_instance(&sc->sc_media, IFM_INST_ANY);
ether_ifdetach(ifp);
if_detach(ifp);
pcmcia_function_unconfigure(sc->sc_pf);
return (0);
}
/*
* start the card running
*/
static int
ray_enable(sc)
struct ray_softc *sc;
{
int error;
RAY_DPRINTF(("%s: enable\n", sc->sc_xname));
sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_NET,
ray_intr, sc);
if (!sc->sc_ih)
return (EIO);
error = ray_init(sc);
if (error) {
pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
sc->sc_ih = 0;
}
return (error);
}
/*
* stop the card running
*/
static void
ray_disable(sc)
struct ray_softc *sc;
{
RAY_DPRINTF(("%s: disable\n", sc->sc_xname));
ray_stop(sc);
sc->sc_resetloop = 0;
sc->sc_rxoverflow = 0;
sc->sc_rxcksum = 0;
sc->sc_rxhcksum = 0;
sc->sc_rxnoise = 0;
if (sc->sc_ih) {
pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
sc->sc_ih = 0;
}
}
/*
* start the card running
*/
static int
ray_init(sc)
struct ray_softc *sc;
{
struct ray_ecf_startup *ep;
bus_size_t ccs;
int i;
RAY_DPRINTF(("%s: init\n", sc->sc_xname));
if ((sc->sc_if.if_flags & IFF_RUNNING))
ray_stop(sc);
if (pcmcia_function_enable(sc->sc_pf))
return (EIO);
RAY_DPRINTF(("%s: init post-enable\n", sc->sc_xname));
/* reset some values */
memset(sc->sc_ccsinuse, 0, sizeof(sc->sc_ccsinuse));
sc->sc_havenet = 0;
memset(sc->sc_bssid, 0, sizeof(sc->sc_bssid));
sc->sc_deftxrate = 0;
sc->sc_encrypt = 0;
sc->sc_txpad = 0;
sc->sc_promisc = 0;
sc->sc_scheduled = 0;
sc->sc_running = 0;
sc->sc_txfree = RAY_CCS_NTX;
sc->sc_checkcounters = 0;
sc->sc_flags &= ~RAY_FLAGS_RESUMEINIT;
sc->sc_authstate = RAY_AUTH_UNAUTH;
/* get startup results */
ep = &sc->sc_ecf_startup;
ray_read_region(sc, RAY_ECF_TO_HOST_BASE, ep,
sizeof(sc->sc_ecf_startup));
/* check to see that card initialized properly */
if (ep->e_status != RAY_ECFS_CARD_OK) {
pcmcia_function_disable(sc->sc_pf);
printf("%s: card failed self test: status %d\n",
sc->sc_xname, sc->sc_ecf_startup.e_status);
return (EIO);
}
/* fixup tib size to be correct */
if (sc->sc_version == SC_BUILD_4 && sc->sc_tibsize == 0x55)
sc->sc_tibsize = 32;
sc->sc_txpad = sc->sc_tibsize;
/* set all ccs to be free */
ccs = RAY_GET_CCS(0);
for (i = 0; i < RAY_CCS_LAST; ccs += RAY_CCS_SIZE, i++)
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd, c_status,
RAY_CCS_STATUS_FREE);
/* clear the interrupt if present */
REG_WRITE(sc, RAY_HCSIR, 0);
callout_init(&sc->sc_check_ccs_ch);
callout_init(&sc->sc_check_scheduled_ch);
/* we are now up and running -- and are busy until download is cplt */
sc->sc_if.if_flags |= IFF_RUNNING | IFF_OACTIVE;
/* set this now so it gets set in the download */
if (sc->sc_if.if_flags & IFF_ALLMULTI)
sc->sc_if.if_flags |= IFF_PROMISC;
else if (sc->sc_if.if_pcount == 0)
sc->sc_if.if_flags &= ~IFF_PROMISC;
sc->sc_promisc = !!(sc->sc_if.if_flags & IFF_PROMISC);
/* call after we mark ourselves running */
ray_download_params(sc);
return (0);
}
/*
* stop the card running
*/
static void
ray_stop(sc)
struct ray_softc *sc;
{
RAY_DPRINTF(("%s: stop\n", sc->sc_xname));
callout_stop(&sc->sc_check_ccs_ch);
sc->sc_timocheck = 0;
callout_stop(&sc->sc_check_scheduled_ch);
sc->sc_timoneed = 0;
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);
}
sc->sc_if.if_flags &= ~IFF_RUNNING;
pcmcia_function_disable(sc->sc_pf);
}
/*
* reset the card
*/
static void
ray_reset(sc)
struct ray_softc *sc;
{
if (++sc->sc_resetloop >= RAY_MAX_RESETS) {
if (sc->sc_resetloop == RAY_MAX_RESETS) {
printf("%s: unable to correct, disabling\n",
sc->sc_xname);
callout_stop(&sc->sc_reset_resetloop_ch);
callout_reset(&sc->sc_disable_ch, 1,
(void (*)(void *))ray_disable, sc);
}
} else {
printf("%s: unexpected failure resetting hw [%d more]\n",
sc->sc_xname, RAY_MAX_RESETS - sc->sc_resetloop);
callout_stop(&sc->sc_reset_resetloop_ch);
ray_init(sc);
callout_reset(&sc->sc_reset_resetloop_ch, 30 * hz,
ray_reset_resetloop, sc);
}
}
/*
* return resetloop to zero (enough time has expired to allow user to
* disable a whacked interface) the main reason for all this nonesense
* is that resets take ~2 seconds and currently the pcmcia code spins
* on these resets
*/
static void
ray_reset_resetloop(arg)
void *arg;
{
struct ray_softc *sc;
sc = arg;
sc->sc_resetloop = 0;
}
void
ray_power(why, arg)
int why;
void *arg;
{
#if 0
struct ray_softc *sc;
/* can't do this until power hooks are called from thread */
sc = arg;
switch (why) {
case PWR_RESUME:
if ((sc->sc_flags & RAY_FLAGS_RESUMEINIT))
ray_init(sc);
break;
case PWR_SUSPEND:
if ((sc->sc_if.if_flags & IFF_RUNNING)) {
ray_stop(sc);
sc->sc_flags |= RAY_FLAGS_RESUMEINIT;
}
break;
case PWR_STANDBY:
default:
break;
}
#endif
}
static void
ray_shutdown(arg)
void *arg;
{
struct ray_softc *sc;
sc = arg;
ray_disable(sc);
}
static int
ray_ioctl(ifp, cmd, data)
struct ifnet *ifp;
u_long cmd;
caddr_t data;
{
struct ieee80211_nwid nwid;
struct ray_param_req pr;
struct ray_softc *sc;
struct ifreq *ifr;
struct ifaddr *ifa;
int error, error2, s, i;
sc = ifp->if_softc;
error = 0;
ifr = (struct ifreq *)data;
s = splnet();
RAY_DPRINTF(("%s: ioctl: cmd 0x%lx data 0x%lx\n", ifp->if_xname,
cmd, (long)data));
switch (cmd) {
case SIOCSIFADDR:
RAY_DPRINTF(("%s: ioctl: cmd SIOCSIFADDR\n", ifp->if_xname));
if ((ifp->if_flags & IFF_RUNNING) == 0)
if ((error = ray_enable(sc)))
break;
ifp->if_flags |= IFF_UP;
ifa = (struct ifaddr *)data;
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
arp_ifinit(&sc->sc_if, ifa);
break;
#endif
default:
break;
}
break;
case SIOCSIFFLAGS:
RAY_DPRINTF(("%s: ioctl: cmd SIOCSIFFLAGS\n", ifp->if_xname));
if (ifp->if_flags & IFF_UP) {
if ((ifp->if_flags & IFF_RUNNING) == 0) {
if ((error = ray_enable(sc)))
break;
} else
ray_update_promisc(sc);
} else if (ifp->if_flags & IFF_RUNNING)
ray_disable(sc);
break;
case SIOCADDMULTI:
RAY_DPRINTF(("%s: ioctl: cmd SIOCADDMULTI\n", ifp->if_xname));
case SIOCDELMULTI:
if (cmd == SIOCDELMULTI)
RAY_DPRINTF(("%s: ioctl: cmd SIOCDELMULTI\n",
ifp->if_xname));
if (cmd == SIOCADDMULTI)
error = ether_addmulti(ifr, &sc->sc_ec);
else
error = ether_delmulti(ifr, &sc->sc_ec);
if (error == ENETRESET) {
if (ifp->if_flags & IFF_RUNNING)
ray_update_mcast(sc);
error = 0;
}
break;
case SIOCSIFMEDIA:
RAY_DPRINTF(("%s: ioctl: cmd SIOCSIFMEDIA\n", ifp->if_xname));
case SIOCGIFMEDIA:
if (cmd == SIOCGIFMEDIA)
RAY_DPRINTF(("%s: ioctl: cmd SIOCGIFMEDIA\n",
ifp->if_xname));
error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd);
break;
case SIOCSRAYPARAM:
RAY_DPRINTF(("%s: ioctl: cmd SIOCSRAYPARAM\n", ifp->if_xname));
if ((error = copyin(ifr->ifr_data, &pr, sizeof(pr))))
break;
/* disallow certain command that have another interface */
switch (pr.r_paramid) {
case RAY_PID_NET_TYPE: /* through media opt */
case RAY_PID_AP_STATUS: /* unsupported */
case RAY_PID_SSID: /* use SIOC80211[GS]NWID */
case RAY_PID_MAC_ADDR: /* XXX need interface? */
case RAY_PID_PROMISC: /* bpf */
error = EINVAL;
break;
}
error = ray_user_update_params(sc, &pr);
error2 = copyout(&pr, ifr->ifr_data, sizeof(pr));
error = error2 ? error2 : error;
break;
case SIOCGRAYPARAM:
RAY_DPRINTF(("%s: ioctl: cmd SIOCGRAYPARAM\n", ifp->if_xname));
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 SIOCS80211NWID:
RAY_DPRINTF(("%s: ioctl: cmd SIOCS80211NWID\n", ifp->if_xname));
/*
* if later people overwrite thats ok -- the latest version
* will always get start/joined even if it was set by
* a previous command
*/
if ((error = copyin(ifr->ifr_data, &nwid, sizeof(nwid))))
break;
if (nwid.i_len > IEEE80211_NWID_LEN) {
error = EINVAL;
break;
}
/* clear trailing garbages */
for (i = nwid.i_len; i < IEEE80211_NWID_LEN; i++)
nwid.i_nwid[i] = 0;
if (!memcmp(&sc->sc_dnwid, &nwid, sizeof(nwid)))
break;
memcpy(&sc->sc_dnwid, &nwid, sizeof(nwid));
if (ifp->if_flags & IFF_RUNNING)
ray_start_join_net(sc);
break;
case SIOCG80211NWID:
RAY_DPRINTF(("%s: ioctl: cmd SIOCG80211NWID\n", ifp->if_xname));
error = copyout(&sc->sc_cnwid, ifr->ifr_data,
sizeof(sc->sc_cnwid));
break;
#ifdef RAY_DO_SIGLEV
case SIOCGRAYSIGLEV:
error = copyout(sc->sc_siglevs, ifr->ifr_data,
sizeof sc->sc_siglevs);
break;
#endif
default:
RAY_DPRINTF(("%s: ioctl: unknown\n", ifp->if_xname));
error = EINVAL;
break;
}
RAY_DPRINTF(("%s: ioctl: returns %d\n", ifp->if_xname, error));
splx(s);
return (error);
}
/*
* ifnet interface to start transmission on the interface
*/
static void
ray_if_start(ifp)
struct ifnet *ifp;
{
struct ray_softc *sc;
sc = ifp->if_softc;
ray_intr_start(sc);
}
static int
ray_media_change(ifp)
struct ifnet *ifp;
{
struct ray_softc *sc;
sc = ifp->if_softc;
RAY_DPRINTF(("%s: media change cur %d\n", ifp->if_xname,
sc->sc_media.ifm_cur->ifm_media));
if (sc->sc_media.ifm_cur->ifm_media & IFM_IEEE80211_ADHOC)
sc->sc_mode = SC_MODE_ADHOC;
else
sc->sc_mode = SC_MODE_INFRA;
if (sc->sc_mode != sc->sc_omode)
ray_start_join_net(sc);
return (0);
}
static void
ray_media_status(ifp, imr)
struct ifnet *ifp;
struct ifmediareq *imr;
{
struct ray_softc *sc;
sc = ifp->if_softc;
RAY_DPRINTF(("%s: media status\n", ifp->if_xname));
imr->ifm_status = IFM_AVALID;
if (sc->sc_havenet)
imr->ifm_status |= IFM_ACTIVE;
if (sc->sc_mode == SC_MODE_ADHOC)
imr->ifm_active = IFM_ADHOC;
else
imr->ifm_active = IFM_INFRA;
}
/*
* called to start from ray_intr. We don't check for pending
* interrupt as a result
*/
static void
ray_intr_start(sc)
struct ray_softc *sc;
{
struct ieee80211_frame *iframe;
struct ether_header *eh;
size_t len, pktlen, tmplen;
bus_size_t bufp, ebufp;
struct mbuf *m0, *m;
struct ifnet *ifp;
u_int firsti, hinti, previ, i, pcount;
u_int16_t et;
u_int8_t *d;
ifp = &sc->sc_if;
RAY_DPRINTF(("%s: start free %d\n",
ifp->if_xname, sc->sc_txfree));
ray_cmd_cancel(sc, SCP_IFSTART);
if ((ifp->if_flags & IFF_RUNNING) == 0 || !sc->sc_havenet)
return;
if (IFQ_IS_EMPTY(&ifp->if_snd))
return;
firsti = i = previ = RAY_CCS_LINK_NULL;
hinti = RAY_CCS_TX_FIRST;
if (!RAY_ECF_READY(sc)) {
ray_cmd_schedule(sc, SCP_IFSTART);
return;
}
/* Check to see if we need to authenticate before sending packets. */
if (sc->sc_authstate == RAY_AUTH_NEEDED) {
RAY_DPRINTF(("%s: Sending auth request.\n", ifp->if_xname));
sc->sc_authstate = RAY_AUTH_WAITING;
ray_send_auth(sc, sc->sc_authid, OPEN_AUTH_REQUEST);
return;
}
pcount = 0;
for (;;) {
/* if we have no descriptors be done */
if (i == RAY_CCS_LINK_NULL) {
i = ray_find_free_tx_ccs(sc, hinti);
if (i == RAY_CCS_LINK_NULL) {
RAY_DPRINTF(("%s: no descriptors.\n",
ifp->if_xname));
ifp->if_flags |= IFF_OACTIVE;
break;
}
}
IFQ_DEQUEUE(&ifp->if_snd, m0);
if (!m0) {
RAY_DPRINTF(("%s: dry queue.\n", ifp->if_xname));
break;
}
RAY_DPRINTF(("%s: gotmbuf 0x%lx\n", ifp->if_xname, (long)m0));
pktlen = m0->m_pkthdr.len;
if (pktlen > ETHER_MAX_LEN - ETHER_CRC_LEN) {
RAY_DPRINTF((
"%s: mbuf too long %ld\n", ifp->if_xname,
(u_long)pktlen));
ifp->if_oerrors++;
m_freem(m0);
continue;
}
RAY_DPRINTF(("%s: mbuf.m_pkthdr.len %d\n", ifp->if_xname,
(int)pktlen));
/* we need the ether_header now for pktlen adjustments */
M_PULLUP(m0, sizeof(struct ether_header));
if (!m0) {
RAY_DPRINTF(( "%s: couldn\'t pullup ether header\n",
ifp->if_xname));
ifp->if_oerrors++;
continue;
}
RAY_DPRINTF(("%s: got pulled up mbuf 0x%lx\n", ifp->if_xname,
(long)m0));
/* first peek at the type of packet and figure out what to do */
eh = mtod(m0, struct ether_header *);
et = ntohs(eh->ether_type);
if (ifp->if_flags & IFF_LINK0) {
/* don't support llc for windows compat operation */
if (et <= ETHERMTU) {
m_freem(m0);
ifp->if_oerrors++;
continue;
}
tmplen = sizeof(struct ieee80211_frame);
} else if (et > ETHERMTU) {
/* adjust for LLC/SNAP header */
tmplen = sizeof(struct ieee80211_frame) - ETHER_ADDR_LEN;
} else {
tmplen = 0;
}
/* now get our space for the 802.11 frame */
M_PREPEND(m0, tmplen, M_DONTWAIT);
if (m0)
M_PULLUP(m0, sizeof(struct ether_header) + tmplen);
if (!m0) {
RAY_DPRINTF(("%s: couldn\'t prepend header\n",
ifp->if_xname));
ifp->if_oerrors++;
continue;
}
/* copy the frame into the mbuf for tapping */
iframe = mtod(m0, struct ieee80211_frame *);
eh = (struct ether_header *)((u_int8_t *)iframe + tmplen);
iframe->i_fc[0] =
(IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_TYPE_DATA);
if (sc->sc_mode == SC_MODE_ADHOC) {
iframe->i_fc[1] = IEEE80211_FC1_DIR_NODS;
memcpy(iframe->i_addr1, eh->ether_dhost,ETHER_ADDR_LEN);
memcpy(iframe->i_addr2, eh->ether_shost,ETHER_ADDR_LEN);
memcpy(iframe->i_addr3, sc->sc_bssid, ETHER_ADDR_LEN);
} else {
iframe->i_fc[1] = IEEE80211_FC1_DIR_TODS;
memcpy(iframe->i_addr1, sc->sc_bssid,ETHER_ADDR_LEN);
memcpy(iframe->i_addr2, eh->ether_shost,ETHER_ADDR_LEN);
memmove(iframe->i_addr3,eh->ether_dhost,ETHER_ADDR_LEN);
}
iframe->i_dur[0] = iframe->i_dur[1] = 0;
iframe->i_seq[0] = iframe->i_seq[1] = 0;
/* if not using crummy E2 in 802.11 make it LLC/SNAP */
if ((ifp->if_flags & IFF_LINK0) == 0 && et > ETHERMTU)
memcpy(iframe + 1, llc_snapid, sizeof(llc_snapid));
RAY_DPRINTF(("%s: i %d previ %d\n", ifp->if_xname, i, previ));
if (firsti == RAY_CCS_LINK_NULL)
firsti = i;
pktlen = m0->m_pkthdr.len;
bufp = ray_fill_in_tx_ccs(sc, pktlen, i, previ);
previ = hinti = i;
i = RAY_CCS_LINK_NULL;
RAY_DPRINTF(("%s: bufp 0x%lx new pktlen %d\n",
ifp->if_xname, (long)bufp, (int)pktlen));
/* copy out mbuf */
for (m = m0; m; m = m->m_next) {
if ((len = m->m_len) == 0)
continue;
RAY_DPRINTF((
"%s: copying mbuf 0x%lx bufp 0x%lx len %d\n",
ifp->if_xname, (long)m, (long)bufp, (int)len));
d = mtod(m, u_int8_t *);
ebufp = bufp + len;
if (ebufp <= RAY_TX_END)
ray_write_region(sc, bufp, d, len);
else {
panic("ray_intr_start"); /* XXX */
/* wrapping */
tmplen = ebufp - bufp;
len -= tmplen;
ray_write_region(sc, bufp, d, tmplen);
d += tmplen;
bufp = RAY_TX_BASE;
ray_write_region(sc, bufp, d, len);
}
bufp += len;
}
#if NBPFILTER > 0
if (ifp->if_bpf) {
if (ifp->if_flags & IFF_LINK0) {
m0->m_data += sizeof(struct ieee80211_frame);
m0->m_len -= sizeof(struct ieee80211_frame);
m0->m_pkthdr.len -= sizeof(struct ieee80211_frame);
}
bpf_mtap(ifp->if_bpf, m0);
if (ifp->if_flags & IFF_LINK0) {
m0->m_data -= sizeof(struct ieee80211_frame);
m0->m_len += sizeof(struct ieee80211_frame);
m0->m_pkthdr.len += sizeof(struct ieee80211_frame);
}
}
#endif
#ifdef RAY_DEBUG
if (ray_debug && ray_debug_dump_tx)
ray_dump_mbuf(sc, m0);
#endif
pcount++;
m_freem(m0);
RAY_DPRINTF_XMIT(("%s: sent packet: len %ld\n", sc->sc_xname,
(u_long)pktlen));
}
if (firsti == RAY_CCS_LINK_NULL)
return;
i = 0;
if (!RAY_ECF_READY(sc)) {
/*
* 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("%s: dropping tx packets device busy\n", sc->sc_xname);
ray_free_ccs_chain(sc, firsti);
ifp->if_oerrors += pcount;
return;
}
/* send it off */
RAY_DPRINTF(("%s: ray_start issuing %d \n", sc->sc_xname, firsti));
SRAM_WRITE_1(sc, RAY_SCB_CCSI, firsti);
RAY_ECF_START_CMD(sc);
ifp->if_opackets += pcount;
}
/*
* recevice a packet from the card
*/
static void
ray_recv(sc, ccs)
struct ray_softc *sc;
bus_size_t ccs;
{
struct ieee80211_frame *frame;
struct ether_header *eh;
struct mbuf *m;
size_t pktlen, fudge, len, lenread = 0;
bus_size_t bufp, ebufp, tmp;
struct ifnet *ifp;
u_int8_t *src, *d;
u_int frag = 0, ni, i, issnap, first;
u_int8_t fc0;
#ifdef RAY_DO_SIGLEV
u_int8_t siglev;
#endif
#ifdef RAY_DEBUG
/* have a look if you want to see how the card rx works :) */
if (ray_debug && ray_debug_dump_desc)
hexdump((caddr_t)sc->sc_memh + RAY_RCS_BASE, 0x400,
16, 4, 0);
#endif
m = 0;
ifp = &sc->sc_if;
/*
* If we're expecting the E2-in-802.11 encapsulation that the
* WebGear Windows driver produces, fudge the packet forward
* in the mbuf by 2 bytes so that the payload after the
* Ethernet header will be aligned. If we end up getting a
* packet that's not of this type, we'll just drop it anyway.
*/
if (ifp->if_flags & IFF_LINK0)
fudge = 2;
else
fudge = 0;
/* it looks like at least with build 4 there is no CRC in length */
first = RAY_GET_INDEX(ccs);
pktlen = SRAM_READ_FIELD_2(sc, ccs, ray_cmd_rx, c_pktlen);
#ifdef RAY_DO_SIGLEV
siglev = SRAM_READ_FIELD_1(sc, ccs, ray_cmd_rx, c_siglev);
#endif
RAY_DPRINTF(("%s: recv pktlen %ld frag %d\n", sc->sc_xname,
(u_long)pktlen, frag));
RAY_DPRINTF_XMIT(("%s: received packet: len %ld\n", sc->sc_xname,
(u_long)pktlen));
if (pktlen > MCLBYTES || pktlen < sizeof(*frame)) {
RAY_DPRINTF(("%s: PKTLEN TOO BIG OR TOO SMALL\n",
sc->sc_xname));
ifp->if_ierrors++;
goto done;
}
MGETHDR(m, M_DONTWAIT, MT_DATA);
if (!m) {
RAY_DPRINTF(("%s: MGETHDR FAILED\n", sc->sc_xname));
ifp->if_ierrors++;
goto done;
}
if ((pktlen + fudge) > MHLEN) {
/* XXX should allow chaining? */
MCLGET(m, M_DONTWAIT);
if ((m->m_flags & M_EXT) == 0) {
RAY_DPRINTF(("%s: MCLGET FAILED\n", sc->sc_xname));
ifp->if_ierrors++;
m_freem(m);
m = 0;
goto done;
}
}
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = pktlen;
m->m_len = pktlen;
m->m_data += fudge;
d = mtod(m, u_int8_t *);
RAY_DPRINTF(("%s: recv ccs index %d\n", sc->sc_xname, first));
i = ni = first;
while ((i = ni) && i != RAY_CCS_LINK_NULL) {
ccs = RAY_GET_CCS(i);
bufp = SRAM_READ_FIELD_2(sc, ccs, ray_cmd_rx, c_bufp);
len = SRAM_READ_FIELD_2(sc, ccs, ray_cmd_rx, c_len);
/* remove the CRC */
#if 0
/* at least with build 4 no crc seems to be here */
if (frag++ == 0)
len -= 4;
#endif
ni = SRAM_READ_FIELD_1(sc, ccs, ray_cmd_rx, c_nextfrag);
RAY_DPRINTF(("%s: recv frag index %d len %ld bufp 0x%x ni %d\n",
sc->sc_xname, i, (u_long)len, (int)bufp, ni));
if (len + lenread > pktlen) {
RAY_DPRINTF(("%s: BAD LEN current 0x%lx pktlen 0x%lx\n",
sc->sc_xname, (u_long)(len + lenread),
(u_long)pktlen));
ifp->if_ierrors++;
m_freem(m);
m = 0;
goto done;
}
if (i < RAY_RCCS_FIRST) {
printf("ray_recv: bad ccs index 0x%x\n", i);
m_freem(m);
m = 0;
goto done;
}
ebufp = bufp + len;
if (ebufp <= RAY_RX_END)
ray_read_region(sc, bufp, d, len);
else {
/* wrapping */
ray_read_region(sc, bufp, d, (tmp = RAY_RX_END - bufp));
ray_read_region(sc, RAY_RX_BASE, d + tmp, ebufp - RAY_RX_END);
}
d += len;
lenread += len;
}
done:
RAY_DPRINTF(("%s: recv frag count %d\n", sc->sc_xname, frag));
/* free the rcss */
ni = first;
while ((i = ni) && (i != RAY_CCS_LINK_NULL)) {
ccs = RAY_GET_CCS(i);
ni = SRAM_READ_FIELD_1(sc, ccs, ray_cmd_rx, c_nextfrag);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd, c_status,
RAY_CCS_STATUS_FREE);
}
if (!m)
return;
RAY_DPRINTF(("%s: recv got packet pktlen %ld actual %ld\n",
sc->sc_xname, (u_long)pktlen, (u_long)lenread));
#ifdef RAY_DEBUG
if (ray_debug && ray_debug_dump_rx)
ray_dump_mbuf(sc, m);
#endif
/* receivce the packet */
frame = mtod(m, struct ieee80211_frame *);
fc0 = frame->i_fc[0]
& (IEEE80211_FC0_VERSION_MASK|IEEE80211_FC0_TYPE_MASK);
if ((fc0 & IEEE80211_FC0_VERSION_MASK) != IEEE80211_FC0_VERSION_0) {
RAY_DPRINTF(("%s: pkt not version 0 fc 0x%x\n",
sc->sc_xname, fc0));
m_freem(m);
return;
}
if ((fc0 & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_MGT) {
switch (frame->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
case IEEE80211_FC0_SUBTYPE_BEACON:
/* Ignore beacon silently. */
break;
case IEEE80211_FC0_SUBTYPE_AUTH:
ray_recv_auth(sc, frame);
break;
case IEEE80211_FC0_SUBTYPE_DEAUTH:
sc->sc_authstate = RAY_AUTH_UNAUTH;
break;
default:
RAY_DPRINTF(("%s: mgt packet not supported\n",
sc->sc_dev.dv_xname));
#ifdef RAY_DEBUG
hexdump((const u_int8_t*)frame, pktlen, 16, 4, 0);
#endif
RAY_DPRINTF(("\n"));
break;
}
m_freem(m);
return;
} else if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_DATA) {
RAY_DPRINTF(("%s: pkt not type data fc0 0x%x\n",
sc->sc_xname, fc0));
m_freem(m);
return;
}
if (pktlen < sizeof(*frame) + sizeof(struct llc)) {
RAY_DPRINTF(("%s: pkt too small for llc (%ld)\n",
sc->sc_xname, (u_long)pktlen));
m_freem(m);
return;
}
if (!memcmp(frame + 1, llc_snapid, sizeof(llc_snapid)))
issnap = 1;
else {
/*
* if user has link0 flag set we allow the weird
* Ethernet2 in 802.11 encapsulation produced by
* the windows driver for the WebGear card
*/
RAY_DPRINTF(("%s: pkt not snap 0\n", sc->sc_xname));
if ((ifp->if_flags & IFF_LINK0) == 0) {
m_freem(m);
return;
}
issnap = 0;
}
switch (frame->i_fc[1] & IEEE80211_FC1_DIR_MASK) {
case IEEE80211_FC1_DIR_NODS:
src = frame->i_addr2;
break;
case IEEE80211_FC1_DIR_FROMDS:
src = frame->i_addr3;
break;
case IEEE80211_FC1_DIR_TODS:
RAY_DPRINTF(("%s: pkt ap2ap\n", sc->sc_xname));
m_freem(m);
return;
default:
RAY_DPRINTF(("%s: pkt type unknown\n", sc->sc_xname));
m_freem(m);
return;
}
#ifdef RAY_DO_SIGLEV
ray_update_siglev(sc, src, siglev);
#endif
/*
* This is a mess.. we should support other LLC frame types
*/
if (issnap) {
/* create an ether_header over top of the 802.11+SNAP header */
eh = (struct ether_header *)((caddr_t)(frame + 1) - 6);
memcpy(eh->ether_shost, src, ETHER_ADDR_LEN);
memcpy(eh->ether_dhost, frame->i_addr1, ETHER_ADDR_LEN);
} else {
/* this is the weird e2 in 802.11 encapsulation */
eh = (struct ether_header *)(frame + 1);
}
m_adj(m, (caddr_t)eh - (caddr_t)frame);
#if NBPFILTER > 0
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m);
#endif
/* XXX doesn't appear to be included m->m_flags |= M_HASFCS; */
ifp->if_ipackets++;
(*ifp->if_input)(ifp, m);
}
/*
* receive an auth packet
*/
static void
ray_recv_auth(sc, frame)
struct ray_softc *sc;
struct ieee80211_frame *frame;
{
u_int8_t *var = (u_int8_t *)(frame + 1);
if (sc->sc_mode == SC_MODE_ADHOC) {
RAY_DPRINTF(("%s: recv auth packet:\n", sc->sc_dev.dv_xname));
#ifdef RAY_DEBUG
hexdump((const u_int8_t *)frame, sizeof(*frame) + 6, 16, 4, 0);
#endif
RAY_DPRINTF(("\n"));
if (var[2] == OPEN_AUTH_REQUEST) {
RAY_DPRINTF(("%s: Sending authentication response.\n",
sc->sc_dev.dv_xname));
if (ray_send_auth(sc, frame->i_addr2,
OPEN_AUTH_RESPONSE) == 0) {
sc->sc_authstate = RAY_AUTH_NEEDED;
memcpy(sc->sc_authid, frame->i_addr2,
ETHER_ADDR_LEN);
}
} else if (var[2] == OPEN_AUTH_RESPONSE) {
RAY_DPRINTF(("%s: Authenticated!\n",
sc->sc_dev.dv_xname));
sc->sc_authstate = RAY_AUTH_AUTH;
}
}
}
/*
* send an auth packet
*/
static int
ray_send_auth(sc, dest, auth_type)
struct ray_softc *sc;
u_int8_t *dest;
u_int8_t auth_type;
{
u_int8_t packet[sizeof(struct ieee80211_frame) + ETHER_ADDR_LEN], *var;
struct ieee80211_frame *frame;
bus_size_t bufp;
int ccsindex;
ccsindex = ray_find_free_tx_ccs(sc, RAY_CCS_TX_FIRST);
if (ccsindex == RAY_CCS_LINK_NULL) {
RAY_DPRINTF(("%s: send auth failed -- no free tx slots\n",
sc->sc_dev.dv_xname));
return (ENOMEM);
}
bufp = ray_fill_in_tx_ccs(sc, sizeof(packet), ccsindex,
RAY_CCS_LINK_NULL);
frame = (struct ieee80211_frame *) packet;
frame->i_fc[0] = IEEE80211_FC0_VERSION_0 | IEEE80211_FC0_SUBTYPE_AUTH;
frame->i_fc[1] = 0;
memcpy(frame->i_addr1, dest, ETHER_ADDR_LEN);
memcpy(frame->i_addr2, sc->sc_ecf_startup.e_station_addr,
ETHER_ADDR_LEN);
memcpy(frame->i_addr3, sc->sc_bssid, ETHER_ADDR_LEN);
var = (u_int8_t *)(frame + 1);
memset(var, 0, ETHER_ADDR_LEN);
var[2] = auth_type;
ray_write_region(sc, bufp, packet, sizeof(packet));
SRAM_WRITE_1(sc, RAY_SCB_CCSI, ccsindex);
RAY_ECF_START_CMD(sc);
RAY_DPRINTF_XMIT(("%s: sent auth packet: len %lu\n",
sc->sc_dev.dv_xname, (u_long) sizeof(packet)));
return (0);
}
/*
* scan for free buffers
*
* Note: do _not_ try to optimize this away, there is some kind of
* horrible interaction with receiving tx interrupts and they
* have to be done as fast as possible, which means zero processing.
* this took ~ever to figure out, don't make someone do it again!
*/
static u_int
ray_find_free_tx_ccs(sc, hint)
struct ray_softc *sc;
u_int hint;
{
u_int i, stat;
for (i = hint; i <= RAY_CCS_TX_LAST; i++) {
stat = SRAM_READ_FIELD_1(sc, RAY_GET_CCS(i), ray_cmd, c_status);
if (stat == RAY_CCS_STATUS_FREE)
return (i);
}
if (hint == RAY_CCS_TX_FIRST)
return (RAY_CCS_LINK_NULL);
for (i = RAY_CCS_TX_FIRST; i < hint; i++) {
stat = SRAM_READ_FIELD_1(sc, RAY_GET_CCS(i), ray_cmd, c_status);
if (stat == RAY_CCS_STATUS_FREE)
return (i);
}
return (RAY_CCS_LINK_NULL);
}
/*
* allocate, initialize and link in a tx ccs for the given
* page and the current chain values
*/
static bus_size_t
ray_fill_in_tx_ccs(sc, pktlen, i, pi)
struct ray_softc *sc;
size_t pktlen;
u_int i, pi;
{
bus_size_t ccs, bufp;
/* pktlen += RAY_TX_PHY_SIZE; */
bufp = RAY_TX_BASE + i * RAY_TX_BUF_SIZE;
bufp += sc->sc_txpad;
ccs = RAY_GET_CCS(i);
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_2(sc, ccs, ray_cmd_tx, c_len, pktlen);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_tx_rate, sc->sc_deftxrate);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_apm_mode, 0);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_tx, c_antenna, 0);
/* link us in */
if (pi != RAY_CCS_LINK_NULL)
SRAM_WRITE_FIELD_1(sc, RAY_GET_CCS(pi), ray_cmd_tx, c_link, i);
RAY_DPRINTF(("%s: ray_alloc_tx_ccs bufp 0x%llx idx %u pidx %u\n",
sc->sc_xname, (unsigned long long)bufp, i, pi));
return (bufp + RAY_TX_PHY_SIZE);
}
/*
* an update params command has completed lookup which command and
* the status
*/
static ray_cmd_func_t
ray_update_params_done(sc, ccs, stat)
struct ray_softc *sc;
bus_size_t ccs;
u_int stat;
{
ray_cmd_func_t rcmd;
rcmd = 0;
RAY_DPRINTF(("%s: ray_update_params_done stat %d\n",
sc->sc_xname, stat));
/* this will get more complex as we add commands */
if (stat == RAY_CCS_STATUS_FAIL) {
printf("%s: failed to update a promisc\n", sc->sc_xname);
/* 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_DPRINTF(("%s: new promisc value %d\n", sc->sc_xname,
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);
rcmd = ray_start_join_net;
}
return (rcmd);
}
/*
* check too see if we have any pending commands.
*/
static void
ray_check_scheduled(arg)
void *arg;
{
struct ray_softc *sc;
int s, i, mask;
s = splnet();
sc = arg;
RAY_DPRINTF((
"%s: ray_check_scheduled enter schd 0x%x running 0x%x ready %d\n",
sc->sc_xname, sc->sc_scheduled, sc->sc_running, RAY_ECF_READY(sc)));
if (sc->sc_timoneed) {
callout_stop(&sc->sc_check_scheduled_ch);
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_DPRINTF((
"%s: ray_check_scheduled exit sched 0x%x running 0x%x ready %d\n",
sc->sc_xname, sc->sc_scheduled, sc->sc_running, 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(arg)
void *arg;
{
ray_cmd_func_t fp;
struct ray_softc *sc;
u_int i, cmd, stat = 0;
bus_size_t ccs = 0;
int s;
s = splnet();
sc = arg;
RAY_DPRINTF(("%s: ray_check_ccs\n", sc->sc_xname));
sc->sc_timocheck = 0;
for (i = RAY_CCS_CMD_FIRST; i <= RAY_CCS_CMD_LAST; i++) {
if (!sc->sc_ccsinuse[i])
continue;
ccs = RAY_GET_CCS(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_DPRINTF(("%s: check ccs idx %u ccs 0x%llx "
"cmd 0x%x stat %u\n", sc->sc_xname, i,
(unsigned long long)ccs, cmd, stat));
goto breakout;
}
}
breakout:
/* see if we got one of the commands we are looking for */
if (i > RAY_CCS_CMD_LAST)
; /* nothing */
else if (stat == RAY_CCS_STATUS_FREE) {
stat = RAY_CCS_STATUS_COMPLETE;
if ((fp = ray_ccs_done(sc, ccs)))
(*fp)(sc);
} 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) {
callout_reset(&sc->sc_check_ccs_ch, 1,
ray_check_ccs, sc);
sc->sc_timocheck = 1;
}
} else if ((fp = ray_ccs_done(sc, ccs)))
(*fp)(sc);
} else {
callout_reset(&sc->sc_check_ccs_ch, RAY_CHECK_CCS_TIMEOUT,
ray_check_ccs, sc);
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
* increments 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(sc)
struct ray_softc *sc;
{
bus_size_t csc;
/* 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);
}
/*
* one of the commands we issued has completed, process.
*/
static ray_cmd_func_t
ray_ccs_done(sc, ccs)
struct ray_softc *sc;
bus_size_t ccs;
{
ray_cmd_func_t rcmd;
u_int cmd, stat;
cmd = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_cmd);
stat = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_status);
RAY_DPRINTF(("%s: ray_ccs_done idx %llu cmd 0x%x stat %u\n",
sc->sc_xname, (unsigned long long)RAY_GET_INDEX(ccs), cmd, stat));
rcmd = 0;
switch (cmd) {
/*
* solicited commands
*/
case RAY_CMD_START_PARAMS:
/* start network */
ray_cmd_done(sc, SCP_UPD_STARTUP);
/* ok to start queueing packets */
sc->sc_if.if_flags &= ~IFF_OACTIVE;
sc->sc_omode = sc->sc_mode;
memcpy(&sc->sc_cnwid, &sc->sc_dnwid, sizeof(sc->sc_cnwid));
rcmd = ray_start_join_net;
break;
case RAY_CMD_UPDATE_PARAMS:
rcmd = ray_update_params_done(sc, ccs, stat);
break;
case RAY_CMD_REPORT_PARAMS:
/* 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_cmd_done(sc, SCP_UPD_MCAST);
if (stat == RAY_CCS_STATUS_FAIL)
rcmd = ray_reset;
break;
case RAY_CMD_START_NET:
case RAY_CMD_JOIN_NET:
rcmd = ray_start_join_net_done(sc, cmd, ccs, stat);
break;
case RAY_CMD_TX_REQ:
if (sc->sc_if.if_flags & IFF_OACTIVE) {
sc->sc_if.if_flags &= ~IFF_OACTIVE;
/* this may also be a problem */
rcmd = ray_intr_start;
}
/* free it -- no tracking */
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd, c_status,
RAY_CCS_STATUS_FREE);
goto done;
case RAY_CMD_START_ASSOC:
ray_cmd_done(sc, SCP_STARTASSOC);
if (stat == RAY_CCS_STATUS_FAIL)
rcmd = ray_start_join_net; /* XXX check */
else {
sc->sc_havenet = 1;
rcmd = ray_intr_start;
}
break;
case RAY_CMD_UPDATE_APM:
case RAY_CMD_TEST_MEM:
case RAY_CMD_SHUTDOWN:
case RAY_CMD_DUMP_MEM:
case RAY_CMD_START_TIMER:
break;
default:
printf("%s: intr: unknown command 0x%x\n",
sc->sc_if.if_xname, 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);
return (rcmd);
}
/*
* an unsolicited interrupt, i.e., the ECF is sending us a command
*/
static ray_cmd_func_t
ray_rccs_intr(sc, ccs)
struct ray_softc *sc;
bus_size_t ccs;
{
ray_cmd_func_t rcmd;
u_int cmd, stat;
cmd = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_cmd);
stat = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_status);
RAY_DPRINTF(("%s: ray_rccs_intr idx %llu cmd 0x%x stat %u\n",
sc->sc_xname, (unsigned long long)RAY_GET_INDEX(ccs), cmd, stat));
rcmd = 0;
switch (cmd) {
/*
* unsolicited commands
*/
case RAY_ECMD_RX_DONE:
ray_recv(sc, ccs);
goto done;
case RAY_ECMD_REJOIN_DONE:
if (sc->sc_mode == SC_MODE_ADHOC)
break;
/* get the current ssid */
SRAM_READ_FIELD_N(sc, ccs, ray_cmd_net, c_bss_id,
sc->sc_bssid, sizeof(sc->sc_bssid));
rcmd = ray_start_assoc;
break;
case RAY_ECMD_ROAM_START:
/* no longer have network */
sc->sc_havenet = 0;
break;
case RAY_ECMD_JAPAN_CALL_SIGNAL:
break;
default:
ray_update_error_counters(sc);
/* this is a bogus return from build 4 don't free 0x55 */
if (sc->sc_version == SC_BUILD_4 && cmd == 0x55
&& RAY_GET_INDEX(ccs) == 0x55) {
goto done;
}
printf("%s: intr: unknown command 0x%x\n",
sc->sc_if.if_xname, cmd);
break;
}
/* free the ccs */
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd, c_status, RAY_CCS_STATUS_FREE);
done:
return (rcmd);
}
/*
* process an interrupt
*/
static int
ray_intr(arg)
void *arg;
{
struct ray_softc *sc;
ray_cmd_func_t rcmd;
u_int i, count;
sc = arg;
RAY_DPRINTF(("%s: ray_intr\n", sc->sc_xname));
if ((++sc->sc_checkcounters % 32) == 0)
ray_update_error_counters(sc);
count = 0;
rcmd = 0;
if (!REG_READ(sc, RAY_HCSIR))
count = 0;
else {
count = 1;
i = SRAM_READ_1(sc, RAY_SCB_RCCSI);
if (i <= RAY_CCS_LAST)
rcmd = ray_ccs_done(sc, RAY_GET_CCS(i));
else if (i <= RAY_RCCS_LAST)
rcmd = ray_rccs_intr(sc, RAY_GET_CCS(i));
else
printf("%s: intr: bad cmd index %d\n", sc->sc_xname, i);
}
if (rcmd)
(*rcmd)(sc);
if (count)
REG_WRITE(sc, RAY_HCSIR, 0);
RAY_DPRINTF(("%s: interrupt handled %d\n", sc->sc_xname, count));
return (count ? 1 : 0);
}
/*
* Generic CCS handling
*/
/*
* free the chain of descriptors -- used for freeing allocated tx chains
*/
static void
ray_free_ccs_chain(sc, ni)
struct ray_softc *sc;
u_int ni;
{
u_int i;
while ((i = ni) != RAY_CCS_LINK_NULL) {
ni = SRAM_READ_FIELD_1(sc, RAY_GET_CCS(i), ray_cmd, c_link);
SRAM_WRITE_FIELD_1(sc, RAY_GET_CCS(i), ray_cmd, c_status,
RAY_CCS_STATUS_FREE);
}
}
/*
* free up a cmd and return the old status
* this routine is only used for commands
*/
static u_int8_t
ray_free_ccs(sc, ccs)
struct ray_softc *sc;
bus_size_t ccs;
{
u_int8_t stat;
RAY_DPRINTF(("%s: free_ccs idx %llu\n", sc->sc_xname,
(unsigned long long)RAY_GET_INDEX(ccs)));
stat = SRAM_READ_FIELD_1(sc, ccs, ray_cmd, c_status);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd, c_status, RAY_CCS_STATUS_FREE);
if (ccs <= RAY_GET_CCS(RAY_CCS_LAST))
sc->sc_ccsinuse[RAY_GET_INDEX(ccs)] = 0;
return (stat);
}
/*
* returns 1 and in `ccb' the bus offset of the free ccb
* 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(sc, ccsp, cmd, track)
struct ray_softc *sc;
bus_size_t *ccsp;
u_int cmd, track;
{
bus_size_t ccs;
u_int i;
RAY_DPRINTF(("%s: alloc_ccs cmd %d\n", sc->sc_xname, cmd));
/* for tracked commands, if not ready just set pending */
if (track && !RAY_ECF_READY(sc)) {
ray_cmd_schedule(sc, track);
return (0);
}
/* first scan our inuse array */
for (i = RAY_CCS_CMD_FIRST; i <= RAY_CCS_CMD_LAST; i++) {
/* XXX wonder if we have to probe here to make the card go */
(void)SRAM_READ_FIELD_1(sc, RAY_GET_CCS(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_GET_CCS(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(sc, cmdf)
struct ray_softc *sc;
u_int cmdf;
{
RAY_DPRINTF(("%s: ray_set_pending 0x%x\n", sc->sc_xname, cmdf));
sc->sc_scheduled |= cmdf;
if (!sc->sc_timoneed) {
RAY_DPRINTF(("%s: ray_set_pending new timo\n", sc->sc_xname));
callout_reset(&sc->sc_check_scheduled_ch,
RAY_CHECK_SCHED_TIMEOUT, ray_check_scheduled, sc);
sc->sc_timoneed = 1;
}
}
/*
* schedule the `cmdf' for completion later
*/
static void
ray_cmd_schedule(sc, cmdf)
struct ray_softc *sc;
int cmdf;
{
int track;
RAY_DPRINTF(("%s: ray_cmd_schedule 0x%x\n", sc->sc_xname, cmdf));
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 mechanism 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(sc, cmdf)
struct ray_softc *sc;
int cmdf;
{
RAY_DPRINTF(("%s: ray_cmd_is_scheduled 0x%x\n", sc->sc_xname, cmdf));
return ((sc->sc_scheduled & cmdf) ? 1 : 0);
}
/*
* cancel a scheduled command (not a running one though!)
*/
static void
ray_cmd_cancel(sc, cmdf)
struct ray_softc *sc;
int cmdf;
{
RAY_DPRINTF(("%s: ray_cmd_cancel 0x%x\n", sc->sc_xname, cmdf));
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) {
callout_stop(&sc->sc_check_scheduled_ch);
sc->sc_timoneed = 0;
}
}
/*
* called to indicate the 'cmdf' has been issued
*/
static void
ray_cmd_ran(sc, cmdf)
struct ray_softc *sc;
int cmdf;
{
RAY_DPRINTF(("%s: ray_cmd_ran 0x%x\n", sc->sc_xname, cmdf));
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) {
callout_reset(&sc->sc_check_ccs_ch, RAY_CHECK_CCS_TIMEOUT,
ray_check_ccs, sc);
sc->sc_timocheck = 1;
}
}
/*
* check to see if `cmdf' has been issued
*/
static int
ray_cmd_is_running(sc, cmdf)
struct ray_softc *sc;
int cmdf;
{
RAY_DPRINTF(("%s: ray_cmd_is_running 0x%x\n", sc->sc_xname, cmdf));
return ((sc->sc_running & cmdf) ? 1 : 0);
}
/*
* the given `cmdf' that was issued has completed
*/
static void
ray_cmd_done(sc, cmdf)
struct ray_softc *sc;
int cmdf;
{
RAY_DPRINTF(("%s: ray_cmd_done 0x%x\n", sc->sc_xname, cmdf));
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){
callout_stop(&sc->sc_check_ccs_ch);
sc->sc_timocheck = 0;
}
}
/*
* issue the command
* only used for commands not tx
*/
static int
ray_issue_cmd(sc, ccs, track)
struct ray_softc *sc;
bus_size_t ccs;
u_int track;
{
u_int i;
RAY_DPRINTF(("%s: ray_cmd_issue 0x%x\n", sc->sc_xname, track));
/*
* 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) {
ray_free_ccs(sc, ccs);
if (track)
ray_cmd_schedule(sc, track);
return (0);
}
SRAM_WRITE_1(sc, RAY_SCB_CCSI, RAY_GET_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(sc, cmd, track)
struct ray_softc *sc;
u_int cmd, track;
{
bus_size_t ccs;
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(sc)
struct ray_softc *sc;
{
int submask, i;
RAY_DPRINTF(("%s: ray_update_subcmd\n", sc->sc_xname));
ray_cmd_cancel(sc, SCP_UPDATESUBCMD);
if ((sc->sc_if.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 rescheduled
* 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(sc)
struct ray_softc *sc;
{
bus_size_t ccs;
ray_cmd_cancel(sc, SCP_REPORTPARAMS);
if (!sc->sc_repreq)
return;
/* do the issue check before equality check */
if ((sc->sc_if.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(sc)
struct ray_softc *sc;
{
ray_cmd_cancel(sc, SCP_STARTASSOC);
if ((sc->sc_if.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);
}
/*
* Subcommand functions that use the SCP_UPDATESUBCMD command
* (and are serialized with respect to other update sub commands
*/
/*
* download the startup parameters to the card
* -- no outstanding commands expected
*/
static void
ray_download_params(sc)
struct ray_softc *sc;
{
struct ray_startup_params_head *sp;
struct ray_startup_params_tail_5 *sp5;
struct ray_startup_params_tail_4 *sp4;
bus_size_t off;
RAY_DPRINTF(("%s: init_startup_params\n", sc->sc_xname));
ray_cmd_cancel(sc, SCP_UPD_STARTUP);
#define PUT2(p, v) \
do { (p)[0] = ((v >> 8) & 0xff); (p)[1] = (v & 0xff); } while(0)
sp = &sc->sc_startup;
sp4 = &sc->sc_startup_4;
sp5 = &sc->sc_startup_5;
memset(sp, 0, sizeof(*sp));
if (sc->sc_version == SC_BUILD_4)
memset(sp4, 0, sizeof(*sp4));
else
memset(sp5, 0, sizeof(*sp5));
/* XXX: Raylink firmware doesn't have length field for ssid */
memcpy(sp->sp_ssid, sc->sc_dnwid.i_nwid, sizeof(sp->sp_ssid));
sp->sp_scan_mode = 0x1;
memcpy(sp->sp_mac_addr, sc->sc_ecf_startup.e_station_addr,
ETHER_ADDR_LEN);
PUT2(sp->sp_frag_thresh, 0x7fff); /* disabled */
if (sc->sc_version == SC_BUILD_4) {
#if 1
/* linux/fbsd */
PUT2(sp->sp_dwell_time, 0x200);
PUT2(sp->sp_beacon_period, 1);
#else
/* divined */
PUT2(sp->sp_dwell_time, 0x400);
PUT2(sp->sp_beacon_period, 0);
#endif
} else {
PUT2(sp->sp_dwell_time, 128);
PUT2(sp->sp_beacon_period, 256);
}
sp->sp_dtim_interval = 1;
#if 0
/* these are the documented defaults for build 5/6 */
sp->sp_max_retry = 0x1f;
sp->sp_ack_timo = 0x86;
sp->sp_sifs = 0x1c;
#elif 1
/* these were scrounged from the linux driver */
sp->sp_max_retry = 0x07;
sp->sp_ack_timo = 0xa3;
sp->sp_sifs = 0x1d;
#else
/* these were divined */
sp->sp_max_retry = 0x03;
sp->sp_ack_timo = 0xa3;
sp->sp_sifs = 0x1d;
#endif
#if 0
/* these are the documented defaults for build 5/6 */
sp->sp_difs = 0x82;
sp->sp_pifs = 0;
#else
/* linux/fbsd */
sp->sp_difs = 0x82;
if (sc->sc_version == SC_BUILD_4)
sp->sp_pifs = 0xce;
else
sp->sp_pifs = 0x4e;
#endif
PUT2(sp->sp_rts_thresh, 0x7fff); /* disabled */
if (sc->sc_version == SC_BUILD_4) {
PUT2(sp->sp_scan_dwell, 0xfb1e);
PUT2(sp->sp_scan_max_dwell, 0xc75c);
} else {
PUT2(sp->sp_scan_dwell, 0x4e2);
PUT2(sp->sp_scan_max_dwell, 0x38a4);
}
sp->sp_assoc_timo = 0x5;
if (sc->sc_version == SC_BUILD_4) {
#if 0
/* linux/fbsd */
sp->sp_adhoc_scan_cycle = 0x4;
sp->sp_infra_scan_cycle = 0x2;
sp->sp_infra_super_scan_cycle = 0x4;
#else
/* divined */
sp->sp_adhoc_scan_cycle = 0x8;
sp->sp_infra_scan_cycle = 0x1;
sp->sp_infra_super_scan_cycle = 0x18;
#endif
} else {
sp->sp_adhoc_scan_cycle = 0x8;
sp->sp_infra_scan_cycle = 0x2;
sp->sp_infra_super_scan_cycle = 0x8;
}
sp->sp_promisc = sc->sc_promisc;
PUT2(sp->sp_uniq_word, 0x0cbd);
if (sc->sc_version == SC_BUILD_4) {
/* XXX what is this value anyway..? the std says 50us */
/* XXX sp->sp_slot_time = 0x4e; */
sp->sp_slot_time = 0x4e;
#if 1
/*linux/fbsd*/
sp->sp_roam_low_snr_thresh = 0xff;
#else
/*divined*/
sp->sp_roam_low_snr_thresh = 0x30;
#endif
} else {
sp->sp_slot_time = 0x32;
sp->sp_roam_low_snr_thresh = 0xff; /* disabled */
}
#if 1
sp->sp_low_snr_count = 0xff; /* disabled */
#else
/* divined -- check */
sp->sp_low_snr_count = 0x07; /* disabled */
#endif
#if 0
sp->sp_infra_missed_beacon_count = 0x2;
#elif 1
/* linux/fbsd */
sp->sp_infra_missed_beacon_count = 0x5;
#else
/* divined -- check, looks fishy */
sp->sp_infra_missed_beacon_count = 0x7;
#endif
sp->sp_adhoc_missed_beacon_count = 0xff;
sp->sp_country_code = sc->sc_dcountrycode;
sp->sp_hop_seq = 0x0b;
if (sc->sc_version == SC_BUILD_4) {
sp->sp_hop_seq_len = 0x4e;
sp4->sp_cw_max = 0x3f; /* single byte on build 4 */
sp4->sp_cw_min = 0x0f; /* single byte on build 4 */
sp4->sp_noise_filter_gain = 0x4;
sp4->sp_noise_limit_offset = 0x8;
sp4->sp_rssi_thresh_offset = 0x28;
sp4->sp_busy_thresh_offset = 0x28;
sp4->sp_sync_thresh = 0x07;
sp4->sp_test_mode = 0x0;
sp4->sp_test_min_chan = 0x2;
sp4->sp_test_max_chan = 0x2;
} else {
sp->sp_hop_seq_len = 0x4f;
PUT2(sp5->sp_cw_max, 0x3f);
PUT2(sp5->sp_cw_min, 0x0f);
sp5->sp_noise_filter_gain = 0x4;
sp5->sp_noise_limit_offset = 0x8;
sp5->sp_rssi_thresh_offset = 0x28;
sp5->sp_busy_thresh_offset = 0x28;
sp5->sp_sync_thresh = 0x07;
sp5->sp_test_mode = 0x0;
sp5->sp_test_min_chan = 0x2;
sp5->sp_test_max_chan = 0x2;
#if 0
sp5->sp_allow_probe_resp = 0x1;
#else
sp5->sp_allow_probe_resp = 0x0;
#endif
sp5->sp_privacy_must_start = 0x0;
sp5->sp_privacy_can_join = 0x0;
sp5->sp_basic_rate_set[0] = 0x2;
/* 2 = 1Mbps, 3 = old 2Mbps 4 = 2Mbps */
}
/* we shouldn't be called with some command pending */
if (!RAY_ECF_READY(sc))
panic("ray_download_params busy");
/* write the compatible part */
off = RAY_HOST_TO_ECF_BASE;
ray_write_region(sc, off, sp, sizeof(sc->sc_startup));
off += sizeof(sc->sc_startup);
if (sc->sc_version == SC_BUILD_4)
ray_write_region(sc, off, sp4, sizeof(*sp4));
else
ray_write_region(sc, off, sp5, sizeof(*sp5));
if (!ray_simple_cmd(sc, RAY_CMD_START_PARAMS, SCP_UPD_STARTUP))
panic("ray_download_params issue");
}
/*
* start or join a network
*/
static void
ray_start_join_net(sc)
struct ray_softc *sc;
{
struct ray_net_params np;
bus_size_t ccs;
int cmd;
ray_cmd_cancel(sc, SCP_UPD_STARTJOIN);
if ((sc->sc_if.if_flags & IFF_RUNNING) == 0)
return;
/* XXX check we may not want to re-issue */
if (ray_cmd_is_running(sc, SCP_UPDATESUBCMD)) {
ray_cmd_schedule(sc, SCP_UPD_STARTJOIN);
return;
}
if (sc->sc_mode == SC_MODE_ADHOC)
cmd = RAY_CMD_START_NET;
else
cmd = RAY_CMD_JOIN_NET;
if (!ray_alloc_ccs(sc, &ccs, cmd, SCP_UPD_STARTJOIN))
return;
sc->sc_startccs = ccs;
sc->sc_startcmd = cmd;
if (!memcmp(&sc->sc_cnwid, &sc->sc_dnwid, sizeof(sc->sc_cnwid))
&& sc->sc_omode == sc->sc_mode)
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_net, c_upd_param, 0);
else {
sc->sc_havenet = 0;
memset(&np, 0, sizeof(np));
np.p_net_type = sc->sc_mode;
memcpy(np.p_ssid, sc->sc_dnwid.i_nwid, sizeof(np.p_ssid));
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);
}
if (ray_issue_cmd(sc, ccs, SCP_UPD_STARTJOIN))
callout_reset(&sc->sc_start_join_timo_ch, RAY_START_TIMEOUT,
ray_start_join_timo, sc);
}
static void
ray_start_join_timo(arg)
void *arg;
{
struct ray_softc *sc;
u_int stat;
sc = arg;
stat = SRAM_READ_FIELD_1(sc, sc->sc_startccs, ray_cmd, c_status);
ray_start_join_net_done(sc, sc->sc_startcmd, sc->sc_startccs, stat);
}
/*
* The start/join has completed. Note: we timeout the start
* command because it seems to fail to work at least on the
* build 4 firmware without reporting an error. This actually
* may be a result of not putting the correct params in the
* initial download. If this is a timeout `stat' will be
* marked busy.
*/
static ray_cmd_func_t
ray_start_join_net_done(sc, cmd, ccs, stat)
struct ray_softc *sc;
u_int cmd;
bus_size_t ccs;
u_int stat;
{
int i;
struct ray_net_params np;
callout_stop(&sc->sc_start_join_timo_ch);
ray_cmd_done(sc, SCP_UPD_STARTJOIN);
if (stat == RAY_CCS_STATUS_FAIL) {
/* XXX poke ifmedia when it supports this */
sc->sc_havenet = 0;
return (ray_start_join_net);
}
if (stat == RAY_CCS_STATUS_BUSY || stat == RAY_CCS_STATUS_FREE) {
/* handle the timeout condition */
callout_reset(&sc->sc_start_join_timo_ch, RAY_START_TIMEOUT,
ray_start_join_timo, sc);
/* be safe -- not a lot occurs with no net though */
if (!RAY_ECF_READY(sc))
return (0);
/* see if our nwid is up to date */
if (!memcmp(&sc->sc_cnwid, &sc->sc_dnwid, sizeof(sc->sc_cnwid))
&& sc->sc_omode == sc->sc_mode)
SRAM_WRITE_FIELD_1(sc,ccs, ray_cmd_net, c_upd_param, 0);
else {
memset(&np, 0, sizeof(np));
np.p_net_type = sc->sc_mode;
memcpy(np.p_ssid, sc->sc_dnwid.i_nwid,
sizeof(np.p_ssid));
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);
}
if (sc->sc_mode == SC_MODE_ADHOC)
cmd = RAY_CMD_START_NET;
else
cmd = RAY_CMD_JOIN_NET;
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_net, c_cmd,
RAY_CCS_STATUS_BUSY);
SRAM_WRITE_FIELD_1(sc, ccs, ray_cmd_net, c_status,
RAY_CCS_STATUS_BUSY);
/* we simply poke the card again issuing the same ccs */
SRAM_WRITE_1(sc, RAY_SCB_CCSI, RAY_GET_INDEX(ccs));
RAY_ECF_START_CMD(sc);
ray_cmd_ran(sc, SCP_UPD_STARTJOIN);
return (0);
}
/* get the current ssid */
SRAM_READ_FIELD_N(sc, ccs, ray_cmd_net, c_bss_id, sc->sc_bssid,
sizeof(sc->sc_bssid));
sc->sc_deftxrate = SRAM_READ_FIELD_1(sc, ccs, ray_cmd_net,c_def_txrate);
sc->sc_encrypt = SRAM_READ_FIELD_1(sc, ccs, ray_cmd_net, c_encrypt);
/* adjust values for buggy build 4 */
if (sc->sc_deftxrate == 0x55)
sc->sc_deftxrate = RAY_PID_BASIC_RATE_1500K;
if (sc->sc_encrypt == 0x55)
sc->sc_encrypt = 0;
if (SRAM_READ_FIELD_1(sc, ccs, ray_cmd_net, c_upd_param)) {
ray_read_region(sc, RAY_HOST_TO_ECF_BASE, &np, sizeof(np));
/* XXX: Raylink firmware doesn't have length field for ssid */
for (i = 0; i < sizeof(np.p_ssid); i++) {
if (np.p_ssid[i] == '\0')
break;
}
sc->sc_cnwid.i_len = i;
memcpy(sc->sc_cnwid.i_nwid, np.p_ssid, sizeof(sc->sc_cnwid));
sc->sc_omode = sc->sc_mode;
if (np.p_net_type != sc->sc_mode)
return (ray_start_join_net);
}
RAY_DPRINTF(("%s: net start/join nwid %.32s bssid %s inited %d\n",
sc->sc_xname, sc->sc_cnwid.i_nwid, ether_sprintf(sc->sc_bssid),
SRAM_READ_FIELD_1(sc, ccs, ray_cmd_net, c_inited)));
/* network is now active */
ray_cmd_schedule(sc, SCP_UPD_MCAST|SCP_UPD_PROMISC);
if (cmd == RAY_CMD_JOIN_NET)
return (ray_start_assoc);
else {
sc->sc_havenet = 1;
return (ray_intr_start);
}
}
/*
* set the card in/out of promiscuous mode
*/
static void
ray_update_promisc(sc)
struct ray_softc *sc;
{
bus_size_t ccs;
int promisc;
ray_cmd_cancel(sc, SCP_UPD_PROMISC);
/* do the issue check before equality check */
if (sc->sc_if.if_flags & IFF_ALLMULTI)
sc->sc_if.if_flags |= IFF_PROMISC;
else if (sc->sc_if.if_pcount == 0)
sc->sc_if.if_flags &= ~IFF_PROMISC;
promisc = !!(sc->sc_if.if_flags & IFF_PROMISC);
if ((sc->sc_if.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_PID_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(sc)
struct ray_softc *sc;
{
bus_size_t ccs;
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 ((sc->sc_if.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(sc)
struct ray_softc *sc;
{
bus_size_t ccs;
struct ether_multistep step;
struct ether_multi *enm;
struct ethercom *ec;
bus_size_t bufp;
int count;
ec = &sc->sc_ec;
ray_cmd_cancel(sc, SCP_UPD_MCAST);
/* see if we have any ranges */
if ((count = sc->sc_ec.ec_multicnt) < 17) {
ETHER_FIRST_MULTI(step, ec, enm);
while (enm) {
/* see if this is a range */
if (memcmp(enm->enm_addrlo, enm->enm_addrhi,
ETHER_ADDR_LEN)) {
count = 17;
break;
}
ETHER_NEXT_MULTI(step, enm);
}
}
/* track this stuff even when not running */
if (count > 16) {
sc->sc_if.if_flags |= IFF_ALLMULTI;
ray_update_promisc(sc);
return;
} else if (sc->sc_if.if_flags & IFF_ALLMULTI) {
sc->sc_if.if_flags &= ~IFF_ALLMULTI;
ray_update_promisc(sc);
}
if ((sc->sc_if.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;
ETHER_FIRST_MULTI(step, ec, enm);
while (enm) {
ray_write_region(sc, bufp, enm->enm_addrlo, ETHER_ADDR_LEN);
bufp += ETHER_ADDR_LEN;
ETHER_NEXT_MULTI(step, enm);
}
(void)ray_issue_cmd(sc, ccs, SCP_UPD_MCAST);
}
/*
* User issued commands
*/
/*
* issue an "update params"
*
* expected to be called in sleepable context -- intended for user stuff
*/
static int
ray_user_update_params(sc, pr)
struct ray_softc *sc;
struct ray_param_req *pr;
{
int rv;
if ((sc->sc_if.if_flags & IFF_RUNNING) == 0) {
pr->r_failcause = RAY_FAILCAUSE_EDEVSTOP;
return (EIO);
}
/* 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 ((sc->sc_if.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 sleepable context -- intended for user stuff
*/
static int
ray_user_report_params(sc, pr)
struct ray_softc *sc;
struct ray_param_req *pr;
{
int rv;
if ((sc->sc_if.if_flags & IFF_RUNNING) == 0) {
pr->r_failcause = RAY_FAILCAUSE_EDEVSTOP;
return (EIO);
}
/* 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 ((sc->sc_if.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);
}
/*
* this is a temporary wrapper around bus_space_read_region_1
* as it seems to mess with gcc. the line numbers get offset
* presumably this is related to the inline asm on i386.
*/
static void
ray_read_region(sc, off, vp, c)
struct ray_softc *sc;
bus_size_t off;
void *vp;
size_t c;
{
#ifdef RAY_USE_OPTIMIZED_COPY
u_int n2, n4, tmp;
u_int8_t *p;
p = vp;
/* XXX we may be making poor assumptions here but lets hope */
switch ((off|(bus_addr_t)p) & 0x03) {
case 0:
if ((n4 = c / 4)) {
bus_space_read_region_4(sc->sc_memt, sc->sc_memh, off,
p, n4);
tmp = c & ~0x3;
c &= 0x3;
p += tmp;
off += tmp;
}
switch (c) {
case 3:
*p = bus_space_read_1(sc->sc_memt,sc->sc_memh, off);
p++, off++;
case 2:
*p = bus_space_read_1(sc->sc_memt,sc->sc_memh, off);
p++, off++;
case 1:
*p = bus_space_read_1(sc->sc_memt,sc->sc_memh, off);
}
break;
case 2:
if ((n2 = (c >> 1)))
bus_space_read_region_2(sc->sc_memt, sc->sc_memh, off,
p, n2);
if (c & 1) {
c &= ~0x1;
*(p + c) = bus_space_read_1(sc->sc_memt, sc->sc_memh,
off + c);
}
break;
case 1:
case 3:
bus_space_read_region_1(sc->sc_memt, sc->sc_memh, off, p, c);
break;
}
#else
bus_space_read_region_1(sc->sc_memt, sc->sc_memh, off, vp, c);
#endif
}
/*
* this is a temporary wrapper around bus_space_write_region_1
* as it seems to mess with gcc. the line numbers get offset
* presumably this is related to the inline asm on i386.
*/
static void
ray_write_region(sc, off, vp, c)
struct ray_softc *sc;
bus_size_t off;
void *vp;
size_t c;
{
#ifdef RAY_USE_OPTIMIZED_COPY
size_t n2, n4, tmp;
u_int8_t *p;
p = vp;
/* XXX we may be making poor assumptions here but lets hope */
switch ((off|(bus_addr_t)p) & 0x03) {
case 0:
if ((n4 = (c >> 2))) {
bus_space_write_region_4(sc->sc_memt, sc->sc_memh, off,
p, n4);
tmp = c & ~0x3;
c &= 0x3;
p += tmp;
off += tmp;
}
switch (c) {
case 3:
bus_space_write_1(sc->sc_memt,sc->sc_memh, off, *p);
p++, off++;
case 2:
bus_space_write_1(sc->sc_memt,sc->sc_memh, off, *p);
p++, off++;
case 1:
bus_space_write_1(sc->sc_memt,sc->sc_memh, off, *p);
}
break;
case 2:
if ((n2 = (c >> 1)))
bus_space_write_region_2(sc->sc_memt, sc->sc_memh, off,
p, n2);
if (c & 0x1) {
c &= ~0x1;
bus_space_write_1(sc->sc_memt, sc->sc_memh,
off + c, *(p + c));
}
break;
case 1:
case 3:
bus_space_write_region_1(sc->sc_memt, sc->sc_memh, off, p, c);
break;
}
#else
bus_space_write_region_1(sc->sc_memt, sc->sc_memh, off, vp, c);
#endif
}
#ifdef RAY_DEBUG
#define PRINTABLE(c) ((c) >= 0x20 && (c) <= 0x7f)
void
hexdump(const u_int8_t *d, int len, int br, int div, int fl)
{
int i, j, offw, first, tlen, ni, nj, sp;
sp = br / div;
offw = 0;
if (len && (fl & HEXDF_NOOFFSET) == 0) {
tlen = len;
do {
offw++;
} while (tlen /= br);
}
if (offw)
printf("%0*x: ", offw, 0);
for (i = 0; i < len; i++, d++) {
if (i && (i % br) == 0) {
if ((fl & HEXDF_NOASCII) == 0) {
printf(" ");
d -= br;
for (j = 0; j < br; d++, j++) {
if (j && (j % sp) == 0)
printf(" ");
if (PRINTABLE(*d))
printf("%c", (int)*d);
else
printf(".");
}
}
if (offw)
printf("\n%0*x: ", offw, i);
else
printf("\n");
if ((fl & HEXDF_NOCOMPRESS) == 0) {
first = 1;
while (len - i >= br) {
if (memcmp(d, d - br, br))
break;
d += br;
i += br;
if (first) {
printf("*");
first = 0;
}
}
if (len == i) {
printf("\n%0*x", offw, i);
return;
}
}
} else if (i && (i % sp) == 0)
printf(" ");
printf("%02x ", *d);
}
if (len && (((i - 1) % br) || i == 1)) {
if ((fl & HEXDF_NOASCII) == 0) {
i = i % br ? i % br : br;
ni = (br - i) % br;
j = (i - 1) / sp;
nj = (div - j - 1) % div;
j = 3 * ni + nj + 3;
printf("%*s", j, "");
d -= i;
for (j = 0; j < i; d++, j++) {
if (j && (j % sp) == 0)
printf(" ");
if (PRINTABLE(*d))
printf("%c", (int)*d);
else
printf(".");
}
}
printf("\n");
}
}
static void
ray_dump_mbuf(sc, m)
struct ray_softc *sc;
struct mbuf *m;
{
u_int8_t *d, *ed;
u_int i;
printf("%s: pkt dump:", sc->sc_xname);
i = 0;
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("\n\t");
else if ((i % 8) == 0)
printf(" ");
printf(" %02x", *d);
}
}
if ((i - 1) % 16)
printf("\n");
}
#endif /* RAY_DEBUG */
#ifdef RAY_DO_SIGLEV
static void
ray_update_siglev(sc, src, siglev)
struct ray_softc *sc;
u_int8_t *src;
u_int8_t siglev;
{
int i, mini;
struct timeval mint;
struct ray_siglev *sl;
/* try to find host */
for (i = 0; i < RAY_NSIGLEVRECS; i++) {
sl = &sc->sc_siglevs[i];
if (memcmp(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 (timercmp(&sl->rsl_time, &mint, <)) {
mini = i;
mint = sl->rsl_time;
}
}
sl = &sc->sc_siglevs[mini];
memset(sl->rsl_siglevs, 0, RAY_NSIGLEV);
memcpy(sl->rsl_host, src, ETHER_ADDR_LEN);
found:
microtime(&sl->rsl_time);
memmove(&sl->rsl_siglevs[1], sl->rsl_siglevs, RAY_NSIGLEV-1);
sl->rsl_siglevs[0] = siglev;
}
#endif
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