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ath_netbsd.c revision 1.21
      1 /*	$NetBSD: ath_netbsd.c,v 1.21 2011/07/17 20:54:51 joerg 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  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: ath_netbsd.c,v 1.21 2011/07/17 20:54:51 joerg Exp $");
     30 
     31 #include <sys/param.h>
     32 #include <sys/types.h>
     33 #include <sys/errno.h>
     34 #include <sys/systm.h>
     35 #include <sys/sysctl.h>
     36 #include <sys/mbuf.h>
     37 #include <sys/malloc.h>
     38 #include <sys/kernel.h>
     39 #include <sys/socket.h>
     40 #include <sys/sockio.h>
     41 #include <sys/sysctl.h>
     42 #include <sys/callout.h>
     43 #include <sys/bus.h>
     44 #include <sys/endian.h>
     45 #include <sys/device.h>
     46 #include <sys/module.h>
     47 
     48 #include <net/if.h>
     49 #include <net/if_dl.h>
     50 #include <net/if_media.h>
     51 #include <net/if_arp.h>
     52 #include <net/if_ether.h>
     53 #include <net/if_llc.h>
     54 
     55 #include <net80211/ieee80211_netbsd.h>
     56 #include <net80211/ieee80211_var.h>
     57 #include <dev/ic/ath_netbsd.h>
     58 #include <dev/ic/athvar.h>
     59 
     60 /*
     61  * Setup sysctl(3) MIB, hw.ath.*.
     62  *
     63  * TBD condition CTLFLAG_PERMANENT on being a module or not
     64  */
     65 SYSCTL_SETUP(sysctl_ath, "sysctl ath subtree setup")
     66 {
     67 	int rc;
     68 	const struct sysctlnode *cnode, *rnode;
     69 
     70 	if ((rnode = ath_sysctl_treetop(clog)) == NULL)
     71 		return;
     72 
     73 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "dwell",
     74 	    "channel dwell time (ms) for AP/station scanning",
     75 	    dwelltime)) != 0)
     76 		goto err;
     77 
     78 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "calibrate",
     79 	    "chip calibration interval (secs)", calinterval)) != 0)
     80 		goto err;
     81 
     82 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "outdoor",
     83 	    "outdoor operation", outdoor)) != 0)
     84 		goto err;
     85 
     86 	/* country code */
     87 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE,
     88 	    "countrycode", "country code", countrycode)) != 0)
     89 		goto err;
     90 
     91 	/* regulatory domain */
     92 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "regdomain",
     93 	    "EEPROM regdomain code", regdomain)) != 0)
     94 		goto err;
     95 
     96 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "debug",
     97 	    "control debugging printfs", debug)) != 0)
     98 		goto err;
     99 
    100 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READONLY, "rxbuf",
    101 	    "rx buffers allocated", rxbuf)) != 0)
    102 		goto err;
    103 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READONLY, "txbuf",
    104 	    "tx buffers allocated", txbuf)) != 0)
    105 		goto err;
    106 
    107 	return;
    108 err:
    109 	printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
    110 }
    111 
    112 static int
    113 ath_sysctl_slottime(SYSCTLFN_ARGS)
    114 {
    115 	struct ath_softc *sc;
    116 	struct sysctlnode node;
    117 	u_int slottime;
    118 	int error;
    119 
    120 	node = *rnode;
    121 	sc = (struct ath_softc *)node.sysctl_data;
    122 	slottime = ath_hal_getslottime(sc->sc_ah);
    123 	node.sysctl_data = &slottime;
    124 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    125 	if (error || newp == NULL)
    126 		return error;
    127 	return !ath_hal_setslottime(sc->sc_ah, slottime) ? EINVAL : 0;
    128 }
    129 
    130 static int
    131 ath_sysctl_acktimeout(SYSCTLFN_ARGS)
    132 {
    133 	struct ath_softc *sc;
    134 	struct sysctlnode node;
    135 	u_int acktimeout;
    136 	int error;
    137 
    138 	node = *rnode;
    139 	sc = (struct ath_softc *)node.sysctl_data;
    140 	acktimeout = ath_hal_getacktimeout(sc->sc_ah);
    141 	node.sysctl_data = &acktimeout;
    142 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    143 	if (error || newp == NULL)
    144 		return error;
    145 	return !ath_hal_setacktimeout(sc->sc_ah, acktimeout) ? EINVAL : 0;
    146 }
    147 
    148 static int
    149 ath_sysctl_ctstimeout(SYSCTLFN_ARGS)
    150 {
    151 	struct ath_softc *sc;
    152 	struct sysctlnode node;
    153 	u_int ctstimeout;
    154 	int error;
    155 
    156 	node = *rnode;
    157 	sc = (struct ath_softc *)node.sysctl_data;
    158 	ctstimeout = ath_hal_getctstimeout(sc->sc_ah);
    159 	node.sysctl_data = &ctstimeout;
    160 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    161 	if (error || newp == NULL)
    162 		return error;
    163 	return !ath_hal_setctstimeout(sc->sc_ah, ctstimeout) ? EINVAL : 0;
    164 }
    165 
    166 static int
    167 ath_sysctl_softled(SYSCTLFN_ARGS)
    168 {
    169 	struct ath_softc *sc;
    170 	struct sysctlnode node;
    171 	int softled;
    172 	int error;
    173 
    174 	node = *rnode;
    175 	sc = (struct ath_softc *)node.sysctl_data;
    176 	softled = sc->sc_softled;
    177 	node.sysctl_data = &softled;
    178 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    179 	if (error || newp == NULL)
    180 		return error;
    181 	softled = (softled != 0);
    182 	if (softled != sc->sc_softled) {
    183 		if (softled) {
    184 			/* NB: handle any sc_ledpin change */
    185 			ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin,
    186 			    HAL_GPIO_MUX_MAC_NETWORK_LED);
    187 			ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin,
    188 				!sc->sc_ledon);
    189 		}
    190 		sc->sc_softled = softled;
    191 	}
    192 	return 0;
    193 }
    194 
    195 static int
    196 ath_sysctl_rxantenna(SYSCTLFN_ARGS)
    197 {
    198 	struct ath_softc *sc;
    199 	struct sysctlnode node;
    200 	u_int defantenna;
    201 	int error;
    202 
    203 	node = *rnode;
    204 	sc = (struct ath_softc *)node.sysctl_data;
    205 	defantenna = ath_hal_getdefantenna(sc->sc_ah);
    206 	node.sysctl_data = &defantenna;
    207 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    208 	if (error || newp == NULL)
    209 		return error;
    210 	ath_hal_setdefantenna(sc->sc_ah, defantenna);
    211 	return 0;
    212 }
    213 
    214 static int
    215 ath_sysctl_diversity(SYSCTLFN_ARGS)
    216 {
    217 	struct ath_softc *sc;
    218 	struct sysctlnode node;
    219 	u_int diversity;
    220 	int error;
    221 
    222 	node = *rnode;
    223 	sc = (struct ath_softc *)node.sysctl_data;
    224 	diversity = sc->sc_diversity;
    225 	node.sysctl_data = &diversity;
    226 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    227 	if (error || newp == NULL)
    228 		return error;
    229 	if (!ath_hal_setdiversity(sc->sc_ah, diversity))
    230 		return EINVAL;
    231 	sc->sc_diversity = diversity;
    232 	return 0;
    233 }
    234 
    235 static int
    236 ath_sysctl_diag(SYSCTLFN_ARGS)
    237 {
    238 	struct ath_softc *sc;
    239 	struct sysctlnode node;
    240 	u_int32_t diag;
    241 	int error;
    242 
    243 	node = *rnode;
    244 	sc = (struct ath_softc *)node.sysctl_data;
    245 	if (!ath_hal_getdiag(sc->sc_ah, &diag))
    246 		return EINVAL;
    247 	node.sysctl_data = &diag;
    248 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    249 	if (error || newp == NULL)
    250 		return error;
    251 	return !ath_hal_setdiag(sc->sc_ah, diag) ? EINVAL : 0;
    252 }
    253 
    254 static int
    255 ath_sysctl_tpscale(SYSCTLFN_ARGS)
    256 {
    257 	struct ath_softc *sc;
    258 	struct sysctlnode node;
    259 	u_int32_t scale;
    260 	int error;
    261 
    262 	node = *rnode;
    263 	sc = (struct ath_softc *)node.sysctl_data;
    264 	(void)ath_hal_gettpscale(sc->sc_ah, &scale);
    265 	node.sysctl_data = &scale;
    266 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    267 	if (error || newp == NULL)
    268 		return error;
    269 	return !ath_hal_settpscale(sc->sc_ah, scale)
    270 	    ? EINVAL
    271 	    : ath_reset(&sc->sc_if);
    272 }
    273 
    274 static int
    275 ath_sysctl_tpc(SYSCTLFN_ARGS)
    276 {
    277 	struct ath_softc *sc;
    278 	struct sysctlnode node;
    279 	u_int tpc;
    280 	int error;
    281 
    282 	node = *rnode;
    283 	sc = (struct ath_softc *)node.sysctl_data;
    284 	tpc = ath_hal_gettpc(sc->sc_ah);
    285 	node.sysctl_data = &tpc;
    286 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    287 	if (error || newp == NULL)
    288 		return error;
    289 	return !ath_hal_settpc(sc->sc_ah, tpc) ? EINVAL : 0;
    290 }
    291 
    292 static int
    293 ath_sysctl_rfkill(SYSCTLFN_ARGS)
    294 {
    295 	struct ath_softc *sc;
    296 	struct sysctlnode node;
    297 	u_int rfkill;
    298 	int error;
    299 
    300 	node = *rnode;
    301 	sc = (struct ath_softc *)node.sysctl_data;
    302 	rfkill = ath_hal_getrfkill(sc->sc_ah);
    303 	node.sysctl_data = &rfkill;
    304 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    305 	if (error || newp == NULL)
    306 		return error;
    307 	return !ath_hal_setrfkill(sc->sc_ah, rfkill) ? EINVAL : 0;
    308 }
    309 
    310 static int
    311 ath_sysctl_rfsilent(SYSCTLFN_ARGS)
    312 {
    313 	struct ath_softc *sc;
    314 	struct sysctlnode node;
    315 	u_int rfsilent;
    316 	int error;
    317 
    318 	node = *rnode;
    319 	sc = (struct ath_softc *)node.sysctl_data;
    320 	(void)ath_hal_getrfsilent(sc->sc_ah, &rfsilent);
    321 	node.sysctl_data = &rfsilent;
    322 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    323 	if (error || newp == NULL)
    324 		return error;
    325 	return !ath_hal_setrfsilent(sc->sc_ah, rfsilent) ? EINVAL : 0;
    326 }
    327 
    328 static int
    329 ath_sysctl_regdomain(SYSCTLFN_ARGS)
    330 {
    331 	struct ath_softc *sc;
    332 	struct sysctlnode node;
    333 	u_int32_t rd;
    334 	int error;
    335 
    336 	node = *rnode;
    337 	sc = (struct ath_softc *)node.sysctl_data;
    338 	if (!ath_hal_getregdomain(sc->sc_ah, &rd))
    339 		return EINVAL;
    340 	node.sysctl_data = &rd;
    341 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    342 	if (error || newp == NULL)
    343 		return error;
    344 	return !ath_hal_setregdomain(sc->sc_ah, rd) ? EINVAL : 0;
    345 }
    346 
    347 static int
    348 ath_sysctl_tpack(SYSCTLFN_ARGS)
    349 {
    350 	struct ath_softc *sc;
    351 	struct sysctlnode node;
    352 	u_int32_t tpack;
    353 	int error;
    354 
    355 	node = *rnode;
    356 	sc = (struct ath_softc *)node.sysctl_data;
    357 	(void)ath_hal_gettpack(sc->sc_ah, &tpack);
    358 	node.sysctl_data = &tpack;
    359 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    360 	if (error || newp == NULL)
    361 		return error;
    362 	return !ath_hal_settpack(sc->sc_ah, tpack) ? EINVAL : 0;
    363 }
    364 
    365 static int
    366 ath_sysctl_tpcts(SYSCTLFN_ARGS)
    367 {
    368 	struct ath_softc *sc;
    369 	struct sysctlnode node;
    370 	u_int32_t tpcts;
    371 	int error;
    372 
    373 	node = *rnode;
    374 	sc = (struct ath_softc *)node.sysctl_data;
    375 	(void)ath_hal_gettpcts(sc->sc_ah, &tpcts);
    376 	node.sysctl_data = &tpcts;
    377 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    378 	if (error || newp == NULL)
    379 		return error;
    380 	return !ath_hal_settpcts(sc->sc_ah, tpcts) ? EINVAL : 0;
    381 }
    382 
    383 const struct sysctlnode *
    384 ath_sysctl_instance(const char *dvname, struct sysctllog **log)
    385 {
    386 	int rc;
    387 	const struct sysctlnode *rnode;
    388 
    389 	if ((rc = sysctl_createv(log, 0, NULL, &rnode,
    390 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL,
    391 	    NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0)
    392 		goto err;
    393 
    394 	if ((rc = sysctl_createv(log, 0, &rnode, &rnode,
    395 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, dvname,
    396 	    SYSCTL_DESCR("ath information and options"),
    397 	    NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
    398 		goto err;
    399 
    400 	return rnode;
    401 err:
    402 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
    403 	return NULL;
    404 }
    405 
    406 const struct sysctlnode *
    407 ath_sysctl_treetop(struct sysctllog **log)
    408 {
    409 	int rc;
    410 	const struct sysctlnode *rnode;
    411 
    412 	if ((rc = sysctl_createv(log, 0, NULL, &rnode,
    413 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL,
    414 	    NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0)
    415 		goto err;
    416 
    417 	if ((rc = sysctl_createv(log, 0, &rnode, &rnode,
    418 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "ath",
    419 	    SYSCTL_DESCR("ath information and options"),
    420 	    NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
    421 		goto err;
    422 
    423 	return rnode;
    424 err:
    425 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
    426 	return NULL;
    427 }
    428 
    429 void
    430 ath_sysctlattach(struct ath_softc *sc)
    431 {
    432 	int rc;
    433 	struct sysctllog **log = &sc->sc_sysctllog;
    434 	const struct sysctlnode *cnode, *rnode;
    435 
    436 	ath_hal_getcountrycode(sc->sc_ah, &sc->sc_countrycode);
    437 	(void)ath_hal_getregdomain(sc->sc_ah, &sc->sc_regdomain);
    438 	sc->sc_debug = ath_debug;
    439 	sc->sc_txintrperiod = ATH_TXINTR_PERIOD;
    440 
    441 	if ((rnode = ath_sysctl_instance(device_xname(sc->sc_dev), log)) == NULL)
    442 		return;
    443 
    444 	if ((rc = SYSCTL_INT(0, countrycode, "EEPROM country code")) != 0)
    445 		goto err;
    446 
    447 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, debug,
    448 	    "control debugging printfs")) != 0)
    449 		goto err;
    450 
    451 #if 0
    452 	/* channel dwell time (ms) for AP/station scanning */
    453 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, dwell,
    454 	    "Channel dwell time (ms) for scanning")) != 0)
    455 		goto err;
    456 #endif
    457 
    458 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, slottime,
    459 	    "802.11 slot time (us)")) != 0)
    460 		goto err;
    461 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, acktimeout,
    462 	    "802.11 ACK timeout (us)")) != 0)
    463 		goto err;
    464 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, ctstimeout,
    465 	    "802.11 CTS timeout (us)")) != 0)
    466 		goto err;
    467 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, softled,
    468 	    "enable/disable software LED support")) != 0)
    469 		goto err;
    470 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledpin,
    471 	    "GPIO pin connected to LED")) != 0)
    472 		goto err;
    473 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledon,
    474 	    "setting to turn LED on")) != 0)
    475 		goto err;
    476 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledidle,
    477 	    "idle time for inactivity LED (ticks)")) != 0)
    478 		goto err;
    479 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, txantenna,
    480 	    "tx antenna (0=auto)")) != 0)
    481 		goto err;
    482 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rxantenna,
    483 	    "default/rx antenna")) != 0)
    484 		goto err;
    485 	if (ath_hal_hasdiversity(sc->sc_ah)) {
    486 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, diversity,
    487 		    "antenna diversity")) != 0)
    488 			goto err;
    489 	}
    490 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, txintrperiod,
    491 	    "tx descriptor batching")) != 0)
    492 		goto err;
    493 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, diag,
    494 	    "h/w diagnostic control")) != 0)
    495 		goto err;
    496 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpscale,
    497 	    "tx power scaling")) != 0)
    498 		goto err;
    499 	if (ath_hal_hastpc(sc->sc_ah)) {
    500 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpc,
    501 		    "enable/disable per-packet TPC")) != 0)
    502 			goto err;
    503 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpack,
    504 		    "tx power for ack frames")) != 0)
    505 			goto err;
    506 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpcts,
    507 		    "tx power for cts frames")) != 0)
    508 			goto err;
    509 	}
    510 	if (ath_hal_hasrfsilent(sc->sc_ah)) {
    511 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rfsilent,
    512 		    "h/w RF silent config")) != 0)
    513 			goto err;
    514 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rfkill,
    515 		    "enable/disable RF kill switch")) != 0)
    516 			goto err;
    517 	}
    518 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, regdomain,
    519 	    "EEPROM regdomain code")) != 0)
    520 		goto err;
    521 	return;
    522 err:
    523 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
    524 }
    525 
    526 MODULE(MODULE_CLASS_MISC, ath, "ath_hal");
    527 
    528 static int
    529 ath_modcmd(modcmd_t cmd, void *opaque)
    530 {
    531 	switch (cmd) {
    532 	case MODULE_CMD_INIT:
    533 	case MODULE_CMD_FINI:
    534 		return 0;
    535 	default:
    536 		return ENOTTY;
    537 	}
    538 }
    539