956d4fb965
* Add a new method which allows the driver to push the MAC/phy/hal info into the logging stream. * Add a new ALQ logging entry which logs the mac/phy/hal information. * Modify the ALQ startup path to log the MAC/phy/hal information so the decoder knows which HAL/chip is generating this information. * Convert the header and mac/phy/hal information to use be32, rather than host order. I'd like to make this stuff endian-agnostic so I can decode MIPS generated logs on a PC. This requires some further driver modifications to correctly log the right initial chip information. Also - although noone bar me is currently using this, I've shifted the debug bitmask around a bit. Consider yourself warned!
189 lines
4.8 KiB
C
189 lines
4.8 KiB
C
/*-
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* Copyright (c) 2012 Adrian Chadd
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD$
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*/
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#include "opt_ah.h"
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#include "opt_ath.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/sysctl.h>
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#include <sys/bus.h>
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#include <sys/malloc.h>
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#include <sys/proc.h>
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#include <sys/pcpu.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/alq.h>
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#include <sys/endian.h>
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#include <dev/ath/if_ath_alq.h>
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#ifdef ATH_DEBUG_ALQ
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static struct ale *
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if_ath_alq_get(struct if_ath_alq *alq, int len)
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{
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struct ale *ale;
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if (alq->sc_alq_isactive == 0)
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return (NULL);
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ale = alq_getn(alq->sc_alq_alq, len, ALQ_NOWAIT);
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if (! ale)
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alq->sc_alq_numlost++;
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return (ale);
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}
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void
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if_ath_alq_init(struct if_ath_alq *alq, const char *devname)
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{
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bzero(alq, sizeof(*alq));
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strncpy(alq->sc_alq_devname, devname, ATH_ALQ_DEVNAME_LEN);
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printf("%s (%s): attached\n", __func__, alq->sc_alq_devname);
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snprintf(alq->sc_alq_filename, ATH_ALQ_FILENAME_LEN,
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"/tmp/ath_%s_alq.log", alq->sc_alq_devname);
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/* XXX too conservative, right? */
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alq->sc_alq_qsize = (64*1024);
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}
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void
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if_ath_alq_setcfg(struct if_ath_alq *alq, uint32_t macVer,
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uint32_t macRev, uint32_t phyRev, uint32_t halMagic)
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{
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/* Store these in network order */
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alq->sc_alq_cfg.sc_mac_version = htobe32(macVer);
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alq->sc_alq_cfg.sc_mac_revision = htobe32(macRev);
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alq->sc_alq_cfg.sc_phy_rev = htobe32(phyRev);
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alq->sc_alq_cfg.sc_hal_magic = htobe32(halMagic);
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}
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void
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if_ath_alq_tidyup(struct if_ath_alq *alq)
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{
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if_ath_alq_stop(alq);
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printf("%s (%s): detached\n", __func__, alq->sc_alq_devname);
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bzero(alq, sizeof(*alq));
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}
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int
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if_ath_alq_start(struct if_ath_alq *alq)
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{
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int error;
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if (alq->sc_alq_isactive)
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return (0);
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/*
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* Create a variable-length ALQ.
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*/
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error = alq_open(&alq->sc_alq_alq, alq->sc_alq_filename,
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curthread->td_ucred, ALQ_DEFAULT_CMODE,
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alq->sc_alq_qsize, 0);
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if (error != 0) {
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printf("%s (%s): failed, err=%d\n", __func__,
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alq->sc_alq_devname, error);
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} else {
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printf("%s (%s): opened\n", __func__, alq->sc_alq_devname);
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alq->sc_alq_isactive = 1;
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if_ath_alq_post(alq, ATH_ALQ_INIT_STATE,
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sizeof (struct if_ath_alq_init_state),
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(char *) &alq->sc_alq_cfg);
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}
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return (error);
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}
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int
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if_ath_alq_stop(struct if_ath_alq *alq)
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{
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if (alq->sc_alq_isactive == 0)
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return (0);
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printf("%s (%s): closed\n", __func__, alq->sc_alq_devname);
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alq->sc_alq_isactive = 0;
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alq_close(alq->sc_alq_alq);
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alq->sc_alq_alq = NULL;
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return (0);
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}
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/*
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* Post a debug message to the ALQ.
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*
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* "len" is the size of the buf payload in bytes.
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*/
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void
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if_ath_alq_post(struct if_ath_alq *alq, uint16_t op, uint16_t len,
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const char *buf)
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{
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struct if_ath_alq_hdr *ap;
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struct ale *ale;
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if (! if_ath_alq_checkdebug(alq, op))
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return;
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/*
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* Enforce some semblence of sanity on 'len'.
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* Although strictly speaking, any length is possible -
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* just be conservative so things don't get out of hand.
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*/
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if (len > ATH_ALQ_PAYLOAD_LEN)
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len = ATH_ALQ_PAYLOAD_LEN;
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ale = if_ath_alq_get(alq, len + sizeof(struct if_ath_alq_hdr));
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if (ale == NULL)
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return;
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ap = (struct if_ath_alq_hdr *) ale->ae_data;
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ap->threadid = htobe64((uint64_t) curthread->td_tid);
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ap->tstamp = htobe32((uint32_t) ticks);
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ap->op = htobe16(op);
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ap->len = htobe16(len);
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/*
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* Copy the payload _after_ the header field.
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*/
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memcpy(((char *) ap) + sizeof(struct if_ath_alq_hdr),
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buf,
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len);
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alq_post(alq->sc_alq_alq, ale);
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}
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#endif /* ATH_DEBUG */
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