Home | History | Annotate | Line # | Download | only in ic
ath_netbsd.c revision 1.11
      1 /*	$NetBSD: ath_netbsd.c,v 1.11 2007/10/19 11:59:47 ad Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2003, 2004 David Young
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include <sys/cdefs.h>
     31 __KERNEL_RCSID(0, "$NetBSD: ath_netbsd.c,v 1.11 2007/10/19 11:59:47 ad Exp $");
     32 
     33 #include <sys/param.h>
     34 #include <sys/types.h>
     35 #include <sys/errno.h>
     36 #include <sys/systm.h>
     37 #include <sys/sysctl.h>
     38 #include <sys/mbuf.h>
     39 #include <sys/malloc.h>
     40 #include <sys/lock.h>
     41 #include <sys/kernel.h>
     42 #include <sys/socket.h>
     43 #include <sys/sockio.h>
     44 #include <sys/sysctl.h>
     45 #include <sys/callout.h>
     46 #include <sys/bus.h>
     47 #include <machine/stdarg.h>
     48 #include <sys/endian.h>
     49 #include <sys/device.h>
     50 
     51 #include <net/if.h>
     52 #include <net/if_dl.h>
     53 #include <net/if_media.h>
     54 #include <net/if_arp.h>
     55 #include <net/if_ether.h>
     56 #include <net/if_llc.h>
     57 
     58 #include <net80211/ieee80211_netbsd.h>
     59 #include <net80211/ieee80211_var.h>
     60 #include <dev/ic/ath_netbsd.h>
     61 #include <dev/ic/athvar.h>
     62 
     63 void
     64 device_printf(struct device dv, const char *fmt, ...)
     65 {
     66         va_list ap;
     67 
     68         va_start(ap, fmt);
     69         printf("%s: ", dv.dv_xname);
     70         vprintf(fmt, ap);
     71         va_end(ap);
     72 	return;
     73 }
     74 
     75 struct mbuf *
     76 m_defrag(struct mbuf *m0, int flags)
     77 {
     78 	struct mbuf *m;
     79 	MGETHDR(m, flags, MT_DATA);
     80 	if (m == NULL)
     81 		return NULL;
     82 
     83 	M_COPY_PKTHDR(m, m0);
     84 	MCLGET(m, flags);
     85 	if ((m->m_flags & M_EXT) == 0) {
     86 		m_free(m);
     87 		return NULL;
     88 	}
     89 	m_copydata(m0, 0, m0->m_pkthdr.len, mtod(m, void *));
     90 	m->m_len = m->m_pkthdr.len;
     91 	return m;
     92 }
     93 
     94 /*
     95  * Setup sysctl(3) MIB, hw.ath.*.
     96  *
     97  * TBD condition CTLFLAG_PERMANENT on being an LKM or not
     98  */
     99 SYSCTL_SETUP(sysctl_ath, "sysctl ath subtree setup")
    100 {
    101 	int rc;
    102 	const struct sysctlnode *cnode, *rnode;
    103 
    104 	if ((rnode = ath_sysctl_treetop(clog)) == NULL)
    105 		return;
    106 
    107 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "dwell",
    108 	    "channel dwell time (ms) for AP/station scanning",
    109 	    dwelltime)) != 0)
    110 		goto err;
    111 
    112 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "calibrate",
    113 	    "chip calibration interval (secs)", calinterval)) != 0)
    114 		goto err;
    115 
    116 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "outdoor",
    117 	    "outdoor operation", outdoor)) != 0)
    118 		goto err;
    119 
    120 	/* country code */
    121 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE,
    122 	    "countrycode", "country code", countrycode)) != 0)
    123 		goto err;
    124 
    125 	/* regulatory domain */
    126 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "regdomain",
    127 	    "EEPROM regdomain code", regdomain)) != 0)
    128 		goto err;
    129 
    130 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "debug",
    131 	    "control debugging printfs", debug)) != 0)
    132 		goto err;
    133 
    134 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READONLY, "rxbuf",
    135 	    "rx buffers allocated", rxbuf)) != 0)
    136 		goto err;
    137 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READONLY, "txbuf",
    138 	    "tx buffers allocated", txbuf)) != 0)
    139 		goto err;
    140 
    141 	return;
    142 err:
    143 	printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
    144 }
    145 
    146 static int
    147 ath_sysctl_slottime(SYSCTLFN_ARGS)
    148 {
    149 	struct ath_softc *sc;
    150 	struct sysctlnode node;
    151 	u_int slottime;
    152 	int error;
    153 
    154 	node = *rnode;
    155 	sc = (struct ath_softc *)node.sysctl_data;
    156 	slottime = ath_hal_getslottime(sc->sc_ah);
    157 	node.sysctl_data = &slottime;
    158 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    159 	if (error || newp == NULL)
    160 		return error;
    161 	return !ath_hal_setslottime(sc->sc_ah, slottime) ? EINVAL : 0;
    162 }
    163 
    164 static int
    165 ath_sysctl_acktimeout(SYSCTLFN_ARGS)
    166 {
    167 	struct ath_softc *sc;
    168 	struct sysctlnode node;
    169 	u_int acktimeout;
    170 	int error;
    171 
    172 	node = *rnode;
    173 	sc = (struct ath_softc *)node.sysctl_data;
    174 	acktimeout = ath_hal_getacktimeout(sc->sc_ah);
    175 	node.sysctl_data = &acktimeout;
    176 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    177 	if (error || newp == NULL)
    178 		return error;
    179 	return !ath_hal_setacktimeout(sc->sc_ah, acktimeout) ? EINVAL : 0;
    180 }
    181 
    182 static int
    183 ath_sysctl_ctstimeout(SYSCTLFN_ARGS)
    184 {
    185 	struct ath_softc *sc;
    186 	struct sysctlnode node;
    187 	u_int ctstimeout;
    188 	int error;
    189 
    190 	node = *rnode;
    191 	sc = (struct ath_softc *)node.sysctl_data;
    192 	ctstimeout = ath_hal_getctstimeout(sc->sc_ah);
    193 	node.sysctl_data = &ctstimeout;
    194 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    195 	if (error || newp == NULL)
    196 		return error;
    197 	return !ath_hal_setctstimeout(sc->sc_ah, ctstimeout) ? EINVAL : 0;
    198 }
    199 
    200 static int
    201 ath_sysctl_softled(SYSCTLFN_ARGS)
    202 {
    203 	struct ath_softc *sc;
    204 	struct sysctlnode node;
    205 	int softled;
    206 	int error;
    207 
    208 	node = *rnode;
    209 	sc = (struct ath_softc *)node.sysctl_data;
    210 	softled = sc->sc_softled;
    211 	node.sysctl_data = &softled;
    212 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    213 	if (error || newp == NULL)
    214 		return error;
    215 	softled = (softled != 0);
    216 	if (softled != sc->sc_softled) {
    217 		if (softled) {
    218 			/* NB: handle any sc_ledpin change */
    219 			ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin);
    220 			ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin,
    221 				!sc->sc_ledon);
    222 		}
    223 		sc->sc_softled = softled;
    224 	}
    225 	return 0;
    226 }
    227 
    228 static int
    229 ath_sysctl_rxantenna(SYSCTLFN_ARGS)
    230 {
    231 	struct ath_softc *sc;
    232 	struct sysctlnode node;
    233 	u_int defantenna;
    234 	int error;
    235 
    236 	node = *rnode;
    237 	sc = (struct ath_softc *)node.sysctl_data;
    238 	defantenna = ath_hal_getdefantenna(sc->sc_ah);
    239 	node.sysctl_data = &defantenna;
    240 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    241 	if (error || newp == NULL)
    242 		return error;
    243 	ath_hal_setdefantenna(sc->sc_ah, defantenna);
    244 	return 0;
    245 }
    246 
    247 static int
    248 ath_sysctl_diversity(SYSCTLFN_ARGS)
    249 {
    250 	struct ath_softc *sc;
    251 	struct sysctlnode node;
    252 	u_int diversity;
    253 	int error;
    254 
    255 	node = *rnode;
    256 	sc = (struct ath_softc *)node.sysctl_data;
    257 	diversity = sc->sc_diversity;
    258 	node.sysctl_data = &diversity;
    259 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    260 	if (error || newp == NULL)
    261 		return error;
    262 	if (!ath_hal_setdiversity(sc->sc_ah, diversity))
    263 		return EINVAL;
    264 	sc->sc_diversity = diversity;
    265 	return 0;
    266 }
    267 
    268 static int
    269 ath_sysctl_diag(SYSCTLFN_ARGS)
    270 {
    271 	struct ath_softc *sc;
    272 	struct sysctlnode node;
    273 	u_int32_t diag;
    274 	int error;
    275 
    276 	node = *rnode;
    277 	sc = (struct ath_softc *)node.sysctl_data;
    278 	if (!ath_hal_getdiag(sc->sc_ah, &diag))
    279 		return EINVAL;
    280 	node.sysctl_data = &diag;
    281 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    282 	if (error || newp == NULL)
    283 		return error;
    284 	return !ath_hal_setdiag(sc->sc_ah, diag) ? EINVAL : 0;
    285 }
    286 
    287 static int
    288 ath_sysctl_tpscale(SYSCTLFN_ARGS)
    289 {
    290 	struct ath_softc *sc;
    291 	struct sysctlnode node;
    292 	u_int32_t scale;
    293 	int error;
    294 
    295 	node = *rnode;
    296 	sc = (struct ath_softc *)node.sysctl_data;
    297 	(void)ath_hal_gettpscale(sc->sc_ah, &scale);
    298 	node.sysctl_data = &scale;
    299 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    300 	if (error || newp == NULL)
    301 		return error;
    302 	return !ath_hal_settpscale(sc->sc_ah, scale)
    303 	    ? EINVAL
    304 	    : ath_reset(&sc->sc_if);
    305 }
    306 
    307 static int
    308 ath_sysctl_tpc(SYSCTLFN_ARGS)
    309 {
    310 	struct ath_softc *sc;
    311 	struct sysctlnode node;
    312 	u_int tpc;
    313 	int error;
    314 
    315 	node = *rnode;
    316 	sc = (struct ath_softc *)node.sysctl_data;
    317 	tpc = ath_hal_gettpc(sc->sc_ah);
    318 	node.sysctl_data = &tpc;
    319 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    320 	if (error || newp == NULL)
    321 		return error;
    322 	return !ath_hal_settpc(sc->sc_ah, tpc) ? EINVAL : 0;
    323 }
    324 
    325 static int
    326 ath_sysctl_rfkill(SYSCTLFN_ARGS)
    327 {
    328 	struct ath_softc *sc;
    329 	struct sysctlnode node;
    330 	u_int rfkill;
    331 	int error;
    332 
    333 	node = *rnode;
    334 	sc = (struct ath_softc *)node.sysctl_data;
    335 	rfkill = ath_hal_getrfkill(sc->sc_ah);
    336 	node.sysctl_data = &rfkill;
    337 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    338 	if (error || newp == NULL)
    339 		return error;
    340 	return !ath_hal_setrfkill(sc->sc_ah, rfkill) ? EINVAL : 0;
    341 }
    342 
    343 static int
    344 ath_sysctl_rfsilent(SYSCTLFN_ARGS)
    345 {
    346 	struct ath_softc *sc;
    347 	struct sysctlnode node;
    348 	u_int rfsilent;
    349 	int error;
    350 
    351 	node = *rnode;
    352 	sc = (struct ath_softc *)node.sysctl_data;
    353 	(void)ath_hal_getrfsilent(sc->sc_ah, &rfsilent);
    354 	node.sysctl_data = &rfsilent;
    355 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    356 	if (error || newp == NULL)
    357 		return error;
    358 	return !ath_hal_setrfsilent(sc->sc_ah, rfsilent) ? EINVAL : 0;
    359 }
    360 
    361 static int
    362 ath_sysctl_regdomain(SYSCTLFN_ARGS)
    363 {
    364 	struct ath_softc *sc;
    365 	struct sysctlnode node;
    366 	u_int32_t rd;
    367 	int error;
    368 
    369 	node = *rnode;
    370 	sc = (struct ath_softc *)node.sysctl_data;
    371 	if (!ath_hal_getregdomain(sc->sc_ah, &rd))
    372 		return EINVAL;
    373 	node.sysctl_data = &rd;
    374 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    375 	if (error || newp == NULL)
    376 		return error;
    377 	return !ath_hal_setregdomain(sc->sc_ah, rd) ? EINVAL : 0;
    378 }
    379 
    380 static int
    381 ath_sysctl_tpack(SYSCTLFN_ARGS)
    382 {
    383 	struct ath_softc *sc;
    384 	struct sysctlnode node;
    385 	u_int32_t tpack;
    386 	int error;
    387 
    388 	node = *rnode;
    389 	sc = (struct ath_softc *)node.sysctl_data;
    390 	(void)ath_hal_gettpack(sc->sc_ah, &tpack);
    391 	node.sysctl_data = &tpack;
    392 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    393 	if (error || newp == NULL)
    394 		return error;
    395 	return !ath_hal_settpack(sc->sc_ah, tpack) ? EINVAL : 0;
    396 }
    397 
    398 static int
    399 ath_sysctl_tpcts(SYSCTLFN_ARGS)
    400 {
    401 	struct ath_softc *sc;
    402 	struct sysctlnode node;
    403 	u_int32_t tpcts;
    404 	int error;
    405 
    406 	node = *rnode;
    407 	sc = (struct ath_softc *)node.sysctl_data;
    408 	(void)ath_hal_gettpcts(sc->sc_ah, &tpcts);
    409 	node.sysctl_data = &tpcts;
    410 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    411 	if (error || newp == NULL)
    412 		return error;
    413 	return !ath_hal_settpcts(sc->sc_ah, tpcts) ? EINVAL : 0;
    414 }
    415 
    416 const struct sysctlnode *
    417 ath_sysctl_instance(const char *dvname, struct sysctllog **log)
    418 {
    419 	int rc;
    420 	const struct sysctlnode *rnode;
    421 
    422 	if ((rc = sysctl_createv(log, 0, NULL, &rnode,
    423 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL,
    424 	    NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0)
    425 		goto err;
    426 
    427 	if ((rc = sysctl_createv(log, 0, &rnode, &rnode,
    428 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, dvname,
    429 	    SYSCTL_DESCR("ath information and options"),
    430 	    NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
    431 		goto err;
    432 
    433 	return rnode;
    434 err:
    435 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
    436 	return NULL;
    437 }
    438 
    439 const struct sysctlnode *
    440 ath_sysctl_treetop(struct sysctllog **log)
    441 {
    442 	int rc;
    443 	const struct sysctlnode *rnode;
    444 
    445 	if ((rc = sysctl_createv(log, 0, NULL, &rnode,
    446 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL,
    447 	    NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0)
    448 		goto err;
    449 
    450 	if ((rc = sysctl_createv(log, 0, &rnode, &rnode,
    451 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "ath",
    452 	    SYSCTL_DESCR("ath information and options"),
    453 	    NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
    454 		goto err;
    455 
    456 	return rnode;
    457 err:
    458 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
    459 	return NULL;
    460 }
    461 
    462 void
    463 ath_sysctlattach(struct ath_softc *sc)
    464 {
    465 	int rc;
    466 	struct sysctllog **log = &sc->sc_sysctllog;
    467 	const struct sysctlnode *cnode, *rnode;
    468 
    469 	ath_hal_getcountrycode(sc->sc_ah, &sc->sc_countrycode);
    470 	(void)ath_hal_getregdomain(sc->sc_ah, &sc->sc_regdomain);
    471 	sc->sc_debug = ath_debug;
    472 	sc->sc_txintrperiod = ATH_TXINTR_PERIOD;
    473 
    474 	if ((rnode = ath_sysctl_instance(sc->sc_dev.dv_xname, log)) == NULL)
    475 		return;
    476 
    477 	if ((rc = SYSCTL_INT(0, countrycode, "EEPROM country code")) != 0)
    478 		goto err;
    479 
    480 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, debug,
    481 	    "control debugging printfs")) != 0)
    482 		goto err;
    483 
    484 #if 0
    485 	/* channel dwell time (ms) for AP/station scanning */
    486 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, dwell,
    487 	    "Channel dwell time (ms) for scanning")) != 0)
    488 		goto err;
    489 #endif
    490 
    491 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, slottime,
    492 	    "802.11 slot time (us)")) != 0)
    493 		goto err;
    494 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, acktimeout,
    495 	    "802.11 ACK timeout (us)")) != 0)
    496 		goto err;
    497 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, ctstimeout,
    498 	    "802.11 CTS timeout (us)")) != 0)
    499 		goto err;
    500 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, softled,
    501 	    "enable/disable software LED support")) != 0)
    502 		goto err;
    503 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledpin,
    504 	    "GPIO pin connected to LED")) != 0)
    505 		goto err;
    506 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledon,
    507 	    "setting to turn LED on")) != 0)
    508 		goto err;
    509 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledidle,
    510 	    "idle time for inactivity LED (ticks)")) != 0)
    511 		goto err;
    512 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, txantenna,
    513 	    "tx antenna (0=auto)")) != 0)
    514 		goto err;
    515 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rxantenna,
    516 	    "default/rx antenna")) != 0)
    517 		goto err;
    518 	if (ath_hal_hasdiversity(sc->sc_ah)) {
    519 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, diversity,
    520 		    "antenna diversity")) != 0)
    521 			goto err;
    522 	}
    523 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, txintrperiod,
    524 	    "tx descriptor batching")) != 0)
    525 		goto err;
    526 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, diag,
    527 	    "h/w diagnostic control")) != 0)
    528 		goto err;
    529 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpscale,
    530 	    "tx power scaling")) != 0)
    531 		goto err;
    532 	if (ath_hal_hastpc(sc->sc_ah)) {
    533 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpc,
    534 		    "enable/disable per-packet TPC")) != 0)
    535 			goto err;
    536 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpack,
    537 		    "tx power for ack frames")) != 0)
    538 			goto err;
    539 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpcts,
    540 		    "tx power for cts frames")) != 0)
    541 			goto err;
    542 	}
    543 	if (ath_hal_hasrfsilent(sc->sc_ah)) {
    544 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rfsilent,
    545 		    "h/w RF silent config")) != 0)
    546 			goto err;
    547 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rfkill,
    548 		    "enable/disable RF kill switch")) != 0)
    549 			goto err;
    550 	}
    551 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, regdomain,
    552 	    "EEPROM regdomain code")) != 0)
    553 		goto err;
    554 	return;
    555 err:
    556 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
    557 }
    558