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      1 /*	$NetBSD: ath_netbsd.c,v 1.23 2022/09/25 18:43:32 thorpej 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 1.23 2022/09/25 18:43:32 thorpej 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/kernel.h>
     38 #include <sys/socket.h>
     39 #include <sys/sockio.h>
     40 #include <sys/sysctl.h>
     41 #include <sys/callout.h>
     42 #include <sys/bus.h>
     43 #include <sys/endian.h>
     44 #include <sys/device.h>
     45 #include <sys/module.h>
     46 
     47 #include <net/if.h>
     48 #include <net/if_dl.h>
     49 #include <net/if_media.h>
     50 #include <net/if_arp.h>
     51 #include <net/if_ether.h>
     52 #include <net/if_llc.h>
     53 
     54 #include <net80211/ieee80211_netbsd.h>
     55 #include <net80211/ieee80211_var.h>
     56 #include <dev/ic/ath_netbsd.h>
     57 #include <dev/ic/athvar.h>
     58 
     59 /*
     60  * Setup sysctl(3) MIB, hw.ath.*.
     61  *
     62  * TBD condition CTLFLAG_PERMANENT on being a module or not
     63  */
     64 SYSCTL_SETUP(sysctl_ath, "sysctl ath subtree setup")
     65 {
     66 	int rc;
     67 	const struct sysctlnode *cnode, *rnode;
     68 
     69 	if ((rnode = ath_sysctl_treetop(clog)) == NULL)
     70 		return;
     71 
     72 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "dwell",
     73 	    "channel dwell time (ms) for AP/station scanning",
     74 	    dwelltime)) != 0)
     75 		goto err;
     76 
     77 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "calibrate",
     78 	    "chip calibration interval (secs)", calinterval)) != 0)
     79 		goto err;
     80 
     81 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "outdoor",
     82 	    "outdoor operation", outdoor)) != 0)
     83 		goto err;
     84 
     85 	/* country code */
     86 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE,
     87 	    "countrycode", "country code", countrycode)) != 0)
     88 		goto err;
     89 
     90 	/* regulatory domain */
     91 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "regdomain",
     92 	    "EEPROM regdomain code", regdomain)) != 0)
     93 		goto err;
     94 
     95 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READWRITE, "debug",
     96 	    "control debugging printfs", debug)) != 0)
     97 		goto err;
     98 
     99 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READONLY, "rxbuf",
    100 	    "rx buffers allocated", rxbuf)) != 0)
    101 		goto err;
    102 	if ((rc = SYSCTL_GLOBAL_INT(CTLFLAG_READONLY, "txbuf",
    103 	    "tx buffers allocated", txbuf)) != 0)
    104 		goto err;
    105 
    106 	return;
    107 err:
    108 	printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
    109 }
    110 
    111 static int
    112 ath_sysctl_slottime(SYSCTLFN_ARGS)
    113 {
    114 	struct ath_softc *sc;
    115 	struct sysctlnode node;
    116 	u_int slottime;
    117 	int error;
    118 
    119 	node = *rnode;
    120 	sc = (struct ath_softc *)node.sysctl_data;
    121 	slottime = ath_hal_getslottime(sc->sc_ah);
    122 	node.sysctl_data = &slottime;
    123 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    124 	if (error || newp == NULL)
    125 		return error;
    126 	return !ath_hal_setslottime(sc->sc_ah, slottime) ? EINVAL : 0;
    127 }
    128 
    129 static int
    130 ath_sysctl_acktimeout(SYSCTLFN_ARGS)
    131 {
    132 	struct ath_softc *sc;
    133 	struct sysctlnode node;
    134 	u_int acktimeout;
    135 	int error;
    136 
    137 	node = *rnode;
    138 	sc = (struct ath_softc *)node.sysctl_data;
    139 	acktimeout = ath_hal_getacktimeout(sc->sc_ah);
    140 	node.sysctl_data = &acktimeout;
    141 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    142 	if (error || newp == NULL)
    143 		return error;
    144 	return !ath_hal_setacktimeout(sc->sc_ah, acktimeout) ? EINVAL : 0;
    145 }
    146 
    147 static int
    148 ath_sysctl_ctstimeout(SYSCTLFN_ARGS)
    149 {
    150 	struct ath_softc *sc;
    151 	struct sysctlnode node;
    152 	u_int ctstimeout;
    153 	int error;
    154 
    155 	node = *rnode;
    156 	sc = (struct ath_softc *)node.sysctl_data;
    157 	ctstimeout = ath_hal_getctstimeout(sc->sc_ah);
    158 	node.sysctl_data = &ctstimeout;
    159 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    160 	if (error || newp == NULL)
    161 		return error;
    162 	return !ath_hal_setctstimeout(sc->sc_ah, ctstimeout) ? EINVAL : 0;
    163 }
    164 
    165 static int
    166 ath_sysctl_softled(SYSCTLFN_ARGS)
    167 {
    168 	struct ath_softc *sc;
    169 	struct sysctlnode node;
    170 	int softled;
    171 	int error;
    172 
    173 	node = *rnode;
    174 	sc = (struct ath_softc *)node.sysctl_data;
    175 	softled = sc->sc_softled;
    176 	node.sysctl_data = &softled;
    177 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    178 	if (error || newp == NULL)
    179 		return error;
    180 	softled = (softled != 0);
    181 	if (softled != sc->sc_softled) {
    182 		if (softled) {
    183 			/* NB: handle any sc_ledpin change */
    184 			ath_hal_gpioCfgOutput(sc->sc_ah, sc->sc_ledpin,
    185 			    HAL_GPIO_MUX_MAC_NETWORK_LED);
    186 			ath_hal_gpioset(sc->sc_ah, sc->sc_ledpin,
    187 				!sc->sc_ledon);
    188 		}
    189 		sc->sc_softled = softled;
    190 	}
    191 	return 0;
    192 }
    193 
    194 static int
    195 ath_sysctl_rxantenna(SYSCTLFN_ARGS)
    196 {
    197 	struct ath_softc *sc;
    198 	struct sysctlnode node;
    199 	u_int defantenna;
    200 	int error;
    201 
    202 	node = *rnode;
    203 	sc = (struct ath_softc *)node.sysctl_data;
    204 	defantenna = ath_hal_getdefantenna(sc->sc_ah);
    205 	node.sysctl_data = &defantenna;
    206 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    207 	if (error || newp == NULL)
    208 		return error;
    209 	ath_hal_setdefantenna(sc->sc_ah, defantenna);
    210 	return 0;
    211 }
    212 
    213 static int
    214 ath_sysctl_diversity(SYSCTLFN_ARGS)
    215 {
    216 	struct ath_softc *sc;
    217 	struct sysctlnode node;
    218 	u_int diversity;
    219 	int error;
    220 
    221 	node = *rnode;
    222 	sc = (struct ath_softc *)node.sysctl_data;
    223 	diversity = sc->sc_diversity;
    224 	node.sysctl_data = &diversity;
    225 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    226 	if (error || newp == NULL)
    227 		return error;
    228 	if (!ath_hal_setdiversity(sc->sc_ah, diversity))
    229 		return EINVAL;
    230 	sc->sc_diversity = diversity;
    231 	return 0;
    232 }
    233 
    234 static int
    235 ath_sysctl_diag(SYSCTLFN_ARGS)
    236 {
    237 	struct ath_softc *sc;
    238 	struct sysctlnode node;
    239 	u_int32_t diag;
    240 	int error;
    241 
    242 	node = *rnode;
    243 	sc = (struct ath_softc *)node.sysctl_data;
    244 	if (!ath_hal_getdiag(sc->sc_ah, &diag))
    245 		return EINVAL;
    246 	node.sysctl_data = &diag;
    247 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    248 	if (error || newp == NULL)
    249 		return error;
    250 	return !ath_hal_setdiag(sc->sc_ah, diag) ? EINVAL : 0;
    251 }
    252 
    253 static int
    254 ath_sysctl_tpscale(SYSCTLFN_ARGS)
    255 {
    256 	struct ath_softc *sc;
    257 	struct sysctlnode node;
    258 	u_int32_t scale;
    259 	int error;
    260 
    261 	node = *rnode;
    262 	sc = (struct ath_softc *)node.sysctl_data;
    263 	(void)ath_hal_gettpscale(sc->sc_ah, &scale);
    264 	node.sysctl_data = &scale;
    265 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    266 	if (error || newp == NULL)
    267 		return error;
    268 	return !ath_hal_settpscale(sc->sc_ah, scale)
    269 	    ? EINVAL
    270 	    : ath_reset(&sc->sc_if);
    271 }
    272 
    273 static int
    274 ath_sysctl_tpc(SYSCTLFN_ARGS)
    275 {
    276 	struct ath_softc *sc;
    277 	struct sysctlnode node;
    278 	u_int tpc;
    279 	int error;
    280 
    281 	node = *rnode;
    282 	sc = (struct ath_softc *)node.sysctl_data;
    283 	tpc = ath_hal_gettpc(sc->sc_ah);
    284 	node.sysctl_data = &tpc;
    285 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    286 	if (error || newp == NULL)
    287 		return error;
    288 	return !ath_hal_settpc(sc->sc_ah, tpc) ? EINVAL : 0;
    289 }
    290 
    291 static int
    292 ath_sysctl_rfkill(SYSCTLFN_ARGS)
    293 {
    294 	struct ath_softc *sc;
    295 	struct sysctlnode node;
    296 	u_int rfkill;
    297 	int error;
    298 
    299 	node = *rnode;
    300 	sc = (struct ath_softc *)node.sysctl_data;
    301 	rfkill = ath_hal_getrfkill(sc->sc_ah);
    302 	node.sysctl_data = &rfkill;
    303 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    304 	if (error || newp == NULL)
    305 		return error;
    306 	return !ath_hal_setrfkill(sc->sc_ah, rfkill) ? EINVAL : 0;
    307 }
    308 
    309 static int
    310 ath_sysctl_rfsilent(SYSCTLFN_ARGS)
    311 {
    312 	struct ath_softc *sc;
    313 	struct sysctlnode node;
    314 	u_int rfsilent;
    315 	int error;
    316 
    317 	node = *rnode;
    318 	sc = (struct ath_softc *)node.sysctl_data;
    319 	(void)ath_hal_getrfsilent(sc->sc_ah, &rfsilent);
    320 	node.sysctl_data = &rfsilent;
    321 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    322 	if (error || newp == NULL)
    323 		return error;
    324 	return !ath_hal_setrfsilent(sc->sc_ah, rfsilent) ? EINVAL : 0;
    325 }
    326 
    327 static int
    328 ath_sysctl_regdomain(SYSCTLFN_ARGS)
    329 {
    330 	struct ath_softc *sc;
    331 	struct sysctlnode node;
    332 	u_int32_t rd;
    333 	int error;
    334 
    335 	node = *rnode;
    336 	sc = (struct ath_softc *)node.sysctl_data;
    337 	if (!ath_hal_getregdomain(sc->sc_ah, &rd))
    338 		return EINVAL;
    339 	node.sysctl_data = &rd;
    340 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    341 	if (error || newp == NULL)
    342 		return error;
    343 	return !ath_hal_setregdomain(sc->sc_ah, rd) ? EINVAL : 0;
    344 }
    345 
    346 static int
    347 ath_sysctl_tpack(SYSCTLFN_ARGS)
    348 {
    349 	struct ath_softc *sc;
    350 	struct sysctlnode node;
    351 	u_int32_t tpack;
    352 	int error;
    353 
    354 	node = *rnode;
    355 	sc = (struct ath_softc *)node.sysctl_data;
    356 	(void)ath_hal_gettpack(sc->sc_ah, &tpack);
    357 	node.sysctl_data = &tpack;
    358 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    359 	if (error || newp == NULL)
    360 		return error;
    361 	return !ath_hal_settpack(sc->sc_ah, tpack) ? EINVAL : 0;
    362 }
    363 
    364 static int
    365 ath_sysctl_tpcts(SYSCTLFN_ARGS)
    366 {
    367 	struct ath_softc *sc;
    368 	struct sysctlnode node;
    369 	u_int32_t tpcts;
    370 	int error;
    371 
    372 	node = *rnode;
    373 	sc = (struct ath_softc *)node.sysctl_data;
    374 	(void)ath_hal_gettpcts(sc->sc_ah, &tpcts);
    375 	node.sysctl_data = &tpcts;
    376 	error = sysctl_lookup(SYSCTLFN_CALL(&node));
    377 	if (error || newp == NULL)
    378 		return error;
    379 	return !ath_hal_settpcts(sc->sc_ah, tpcts) ? EINVAL : 0;
    380 }
    381 
    382 const struct sysctlnode *
    383 ath_sysctl_instance(const char *dvname, struct sysctllog **log)
    384 {
    385 	int rc;
    386 	const struct sysctlnode *rnode;
    387 
    388 	if ((rc = sysctl_createv(log, 0, NULL, &rnode,
    389 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, dvname,
    390 	    SYSCTL_DESCR("ath information and options"),
    391 	    NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0)
    392 		goto err;
    393 
    394 	return rnode;
    395 err:
    396 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
    397 	return NULL;
    398 }
    399 
    400 const struct sysctlnode *
    401 ath_sysctl_treetop(struct sysctllog **log)
    402 {
    403 	int rc;
    404 	const struct sysctlnode *rnode;
    405 
    406 	if ((rc = sysctl_createv(log, 0, NULL, &rnode,
    407 	    CTLFLAG_PERMANENT, CTLTYPE_NODE, "ath",
    408 	    SYSCTL_DESCR("ath information and options"),
    409 	    NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0)
    410 		goto err;
    411 
    412 	return rnode;
    413 err:
    414 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
    415 	return NULL;
    416 }
    417 
    418 void
    419 ath_sysctlattach(struct ath_softc *sc)
    420 {
    421 	int rc;
    422 	struct sysctllog **log = &sc->sc_sysctllog;
    423 	const struct sysctlnode *cnode, *rnode;
    424 
    425 	ath_hal_getcountrycode(sc->sc_ah, &sc->sc_countrycode);
    426 	(void)ath_hal_getregdomain(sc->sc_ah, &sc->sc_regdomain);
    427 	sc->sc_debug = ath_debug;
    428 	sc->sc_txintrperiod = ATH_TXINTR_PERIOD;
    429 
    430 	if ((rnode = ath_sysctl_instance(device_xname(sc->sc_dev), log)) == NULL)
    431 		return;
    432 
    433 	if ((rc = SYSCTL_INT(0, countrycode, "EEPROM country code")) != 0)
    434 		goto err;
    435 
    436 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, debug,
    437 	    "control debugging printfs")) != 0)
    438 		goto err;
    439 
    440 #if 0
    441 	/* channel dwell time (ms) for AP/station scanning */
    442 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, dwell,
    443 	    "Channel dwell time (ms) for scanning")) != 0)
    444 		goto err;
    445 #endif
    446 
    447 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, slottime,
    448 	    "802.11 slot time (us)")) != 0)
    449 		goto err;
    450 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, acktimeout,
    451 	    "802.11 ACK timeout (us)")) != 0)
    452 		goto err;
    453 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, ctstimeout,
    454 	    "802.11 CTS timeout (us)")) != 0)
    455 		goto err;
    456 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, softled,
    457 	    "enable/disable software LED support")) != 0)
    458 		goto err;
    459 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledpin,
    460 	    "GPIO pin connected to LED")) != 0)
    461 		goto err;
    462 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledon,
    463 	    "setting to turn LED on")) != 0)
    464 		goto err;
    465 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, ledidle,
    466 	    "idle time for inactivity LED (ticks)")) != 0)
    467 		goto err;
    468 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, txantenna,
    469 	    "tx antenna (0=auto)")) != 0)
    470 		goto err;
    471 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rxantenna,
    472 	    "default/rx antenna")) != 0)
    473 		goto err;
    474 	if (ath_hal_hasdiversity(sc->sc_ah)) {
    475 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, diversity,
    476 		    "antenna diversity")) != 0)
    477 			goto err;
    478 	}
    479 	if ((rc = SYSCTL_INT(CTLFLAG_READWRITE, txintrperiod,
    480 	    "tx descriptor batching")) != 0)
    481 		goto err;
    482 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, diag,
    483 	    "h/w diagnostic control")) != 0)
    484 		goto err;
    485 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpscale,
    486 	    "tx power scaling")) != 0)
    487 		goto err;
    488 	if (ath_hal_hastpc(sc->sc_ah)) {
    489 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpc,
    490 		    "enable/disable per-packet TPC")) != 0)
    491 			goto err;
    492 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpack,
    493 		    "tx power for ack frames")) != 0)
    494 			goto err;
    495 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, tpcts,
    496 		    "tx power for cts frames")) != 0)
    497 			goto err;
    498 	}
    499 	if (ath_hal_hasrfsilent(sc->sc_ah)) {
    500 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rfsilent,
    501 		    "h/w RF silent config")) != 0)
    502 			goto err;
    503 		if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, rfkill,
    504 		    "enable/disable RF kill switch")) != 0)
    505 			goto err;
    506 	}
    507 	if ((rc = SYSCTL_INT_SUBR(CTLFLAG_READWRITE, regdomain,
    508 	    "EEPROM regdomain code")) != 0)
    509 		goto err;
    510 	return;
    511 err:
    512 	printf("%s: sysctl_createv failed, rc = %d\n", __func__, rc);
    513 }
    514 
    515 MODULE(MODULE_CLASS_MISC, ath, "ath_hal");
    516 
    517 static int
    518 ath_modcmd(modcmd_t cmd, void *opaque)
    519 {
    520 	switch (cmd) {
    521 	case MODULE_CMD_INIT:
    522 	case MODULE_CMD_FINI:
    523 		return 0;
    524 	default:
    525 		return ENOTTY;
    526 	}
    527 }
    528