xref: /freebsd/sys/dev/rtwn/rtl8812a/r12a_chan.c (revision 38069501)
1 /*-
2  * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include "opt_wlan.h"
31 
32 #include <sys/param.h>
33 #include <sys/lock.h>
34 #include <sys/mutex.h>
35 #include <sys/mbuf.h>
36 #include <sys/kernel.h>
37 #include <sys/socket.h>
38 #include <sys/systm.h>
39 #include <sys/malloc.h>
40 #include <sys/queue.h>
41 #include <sys/taskqueue.h>
42 #include <sys/bus.h>
43 #include <sys/endian.h>
44 #include <sys/linker.h>
45 
46 #include <net/if.h>
47 #include <net/ethernet.h>
48 #include <net/if_media.h>
49 
50 #include <net80211/ieee80211_var.h>
51 #include <net80211/ieee80211_radiotap.h>
52 
53 #include <dev/rtwn/if_rtwnreg.h>
54 #include <dev/rtwn/if_rtwnvar.h>
55 
56 #include <dev/rtwn/if_rtwn_debug.h>
57 #include <dev/rtwn/if_rtwn_ridx.h>
58 #include <dev/rtwn/if_rtwn_rx.h>
59 
60 #include <dev/rtwn/rtl8812a/r12a.h>
61 #include <dev/rtwn/rtl8812a/r12a_reg.h>
62 #include <dev/rtwn/rtl8812a/r12a_var.h>
63 
64 
65 static void
66 r12a_write_txpower(struct rtwn_softc *sc, int chain,
67     struct ieee80211_channel *c, uint8_t power[RTWN_RIDX_COUNT])
68 {
69 
70 	if (IEEE80211_IS_CHAN_2GHZ(c)) {
71 		/* Write per-CCK rate Tx power. */
72 		rtwn_bb_write(sc, R12A_TXAGC_CCK11_1(chain),
73 		    SM(R12A_TXAGC_CCK1,  power[RTWN_RIDX_CCK1]) |
74 		    SM(R12A_TXAGC_CCK2,  power[RTWN_RIDX_CCK2]) |
75 		    SM(R12A_TXAGC_CCK55, power[RTWN_RIDX_CCK55]) |
76 		    SM(R12A_TXAGC_CCK11, power[RTWN_RIDX_CCK11]));
77 	}
78 
79 	/* Write per-OFDM rate Tx power. */
80 	rtwn_bb_write(sc, R12A_TXAGC_OFDM18_6(chain),
81 	    SM(R12A_TXAGC_OFDM06, power[RTWN_RIDX_OFDM6]) |
82 	    SM(R12A_TXAGC_OFDM09, power[RTWN_RIDX_OFDM9]) |
83 	    SM(R12A_TXAGC_OFDM12, power[RTWN_RIDX_OFDM12]) |
84 	    SM(R12A_TXAGC_OFDM18, power[RTWN_RIDX_OFDM18]));
85 	rtwn_bb_write(sc, R12A_TXAGC_OFDM54_24(chain),
86 	    SM(R12A_TXAGC_OFDM24, power[RTWN_RIDX_OFDM24]) |
87 	    SM(R12A_TXAGC_OFDM36, power[RTWN_RIDX_OFDM36]) |
88 	    SM(R12A_TXAGC_OFDM48, power[RTWN_RIDX_OFDM48]) |
89 	    SM(R12A_TXAGC_OFDM54, power[RTWN_RIDX_OFDM54]));
90 	/* Write per-MCS Tx power. */
91 	rtwn_bb_write(sc, R12A_TXAGC_MCS3_0(chain),
92 	    SM(R12A_TXAGC_MCS0, power[RTWN_RIDX_HT_MCS(0)]) |
93 	    SM(R12A_TXAGC_MCS1, power[RTWN_RIDX_HT_MCS(1)]) |
94 	    SM(R12A_TXAGC_MCS2, power[RTWN_RIDX_HT_MCS(2)]) |
95 	    SM(R12A_TXAGC_MCS3, power[RTWN_RIDX_HT_MCS(3)]));
96 	rtwn_bb_write(sc, R12A_TXAGC_MCS7_4(chain),
97 	    SM(R12A_TXAGC_MCS4, power[RTWN_RIDX_HT_MCS(4)]) |
98 	    SM(R12A_TXAGC_MCS5, power[RTWN_RIDX_HT_MCS(5)]) |
99 	    SM(R12A_TXAGC_MCS6, power[RTWN_RIDX_HT_MCS(6)]) |
100 	    SM(R12A_TXAGC_MCS7, power[RTWN_RIDX_HT_MCS(7)]));
101 	if (sc->ntxchains >= 2) {
102 		rtwn_bb_write(sc, R12A_TXAGC_MCS11_8(chain),
103 		    SM(R12A_TXAGC_MCS8,  power[RTWN_RIDX_HT_MCS(8)]) |
104 		    SM(R12A_TXAGC_MCS9,  power[RTWN_RIDX_HT_MCS(9)]) |
105 		    SM(R12A_TXAGC_MCS10, power[RTWN_RIDX_HT_MCS(10)]) |
106 		    SM(R12A_TXAGC_MCS11, power[RTWN_RIDX_HT_MCS(11)]));
107 		rtwn_bb_write(sc, R12A_TXAGC_MCS15_12(chain),
108 		    SM(R12A_TXAGC_MCS12, power[RTWN_RIDX_HT_MCS(12)]) |
109 		    SM(R12A_TXAGC_MCS13, power[RTWN_RIDX_HT_MCS(13)]) |
110 		    SM(R12A_TXAGC_MCS14, power[RTWN_RIDX_HT_MCS(14)]) |
111 		    SM(R12A_TXAGC_MCS15, power[RTWN_RIDX_HT_MCS(15)]));
112 	}
113 
114 	/* TODO: VHT rates */
115 }
116 
117 static int
118 r12a_get_power_group(struct rtwn_softc *sc, struct ieee80211_channel *c)
119 {
120 	uint8_t chan;
121 	int group;
122 
123 	chan = rtwn_chan2centieee(c);
124 	if (IEEE80211_IS_CHAN_2GHZ(c)) {
125 		if (chan <= 2)			group = 0;
126 		else if (chan <= 5)		group = 1;
127 		else if (chan <= 8)		group = 2;
128 		else if (chan <= 11)		group = 3;
129 		else if (chan <= 14)		group = 4;
130 		else {
131 			KASSERT(0, ("wrong 2GHz channel %d!\n", chan));
132 			return (-1);
133 		}
134 	} else if (IEEE80211_IS_CHAN_5GHZ(c)) {
135 		if (chan < 36)
136 			return (-1);
137 
138 		if (chan <= 42)			group = 0;
139 		else if (chan <= 48)		group = 1;
140 		else if (chan <= 58)		group = 2;
141 		else if (chan <= 64)		group = 3;
142 		else if (chan <= 106)		group = 4;
143 		else if (chan <= 114)		group = 5;
144 		else if (chan <= 122)		group = 6;
145 		else if (chan <= 130)		group = 7;
146 		else if (chan <= 138)		group = 8;
147 		else if (chan <= 144)		group = 9;
148 		else if (chan <= 155)		group = 10;
149 		else if (chan <= 161)		group = 11;
150 		else if (chan <= 171)		group = 12;
151 		else if (chan <= 177)		group = 13;
152 		else {
153 			KASSERT(0, ("wrong 5GHz channel %d!\n", chan));
154 			return (-1);
155 		}
156 	} else {
157 		KASSERT(0, ("wrong channel band (flags %08X)\n", c->ic_flags));
158 		return (-1);
159 	}
160 
161 	return (group);
162 }
163 
164 static void
165 r12a_get_txpower(struct rtwn_softc *sc, int chain,
166     struct ieee80211_channel *c, uint8_t power[RTWN_RIDX_COUNT])
167 {
168 	struct r12a_softc *rs = sc->sc_priv;
169 	int i, ridx, group, max_mcs;
170 
171 	/* Determine channel group. */
172 	group = r12a_get_power_group(sc, c);
173 	if (group == -1) {	/* shouldn't happen */
174 		device_printf(sc->sc_dev, "%s: incorrect channel\n", __func__);
175 		return;
176 	}
177 
178 	/* TODO: VHT rates. */
179 	max_mcs = RTWN_RIDX_HT_MCS(sc->ntxchains * 8 - 1);
180 
181 	/* XXX regulatory */
182 	/* XXX net80211 regulatory */
183 
184 	if (IEEE80211_IS_CHAN_2GHZ(c)) {
185 		for (ridx = RTWN_RIDX_CCK1; ridx <= RTWN_RIDX_CCK11; ridx++)
186 			power[ridx] = rs->cck_tx_pwr[chain][group];
187 		for (ridx = RTWN_RIDX_OFDM6; ridx <= max_mcs; ridx++)
188 			power[ridx] = rs->ht40_tx_pwr_2g[chain][group];
189 
190 		for (ridx = RTWN_RIDX_OFDM6; ridx <= RTWN_RIDX_OFDM54; ridx++)
191 			power[ridx] += rs->ofdm_tx_pwr_diff_2g[chain][0];
192 
193 		for (i = 0; i < sc->ntxchains; i++) {
194 			uint8_t min_mcs;
195 			uint8_t pwr_diff;
196 
197 #ifdef notyet
198 			if (IEEE80211_IS_CHAN_HT80(c)) {
199 				/* Vendor driver uses HT40 values here. */
200 				pwr_diff = rs->bw40_tx_pwr_diff_2g[chain][i];
201 			} else
202 #endif
203 			if (IEEE80211_IS_CHAN_HT40(c))
204 				pwr_diff = rs->bw40_tx_pwr_diff_2g[chain][i];
205 			else
206 				pwr_diff = rs->bw20_tx_pwr_diff_2g[chain][i];
207 
208 			min_mcs = RTWN_RIDX_HT_MCS(i * 8);
209 			for (ridx = min_mcs; ridx <= max_mcs; ridx++)
210 				power[ridx] += pwr_diff;
211 		}
212 	} else {	/* 5GHz */
213 		for (ridx = RTWN_RIDX_OFDM6; ridx <= max_mcs; ridx++)
214 			power[ridx] = rs->ht40_tx_pwr_5g[chain][group];
215 
216 		for (ridx = RTWN_RIDX_OFDM6; ridx <= RTWN_RIDX_OFDM54; ridx++)
217 			power[ridx] += rs->ofdm_tx_pwr_diff_5g[chain][0];
218 
219 		for (i = 0; i < sc->ntxchains; i++) {
220 			uint8_t min_mcs;
221 			uint8_t pwr_diff;
222 
223 #ifdef notyet
224 			if (IEEE80211_IS_CHAN_HT80(c)) {
225 				/* TODO: calculate base value. */
226 				pwr_diff = rs->bw80_tx_pwr_diff_5g[chain][i];
227 			} else
228 #endif
229 			if (IEEE80211_IS_CHAN_HT40(c))
230 				pwr_diff = rs->bw40_tx_pwr_diff_5g[chain][i];
231 			else
232 				pwr_diff = rs->bw20_tx_pwr_diff_5g[chain][i];
233 
234 			min_mcs = RTWN_RIDX_HT_MCS(i * 8);
235 			for (ridx = min_mcs; ridx <= max_mcs; ridx++)
236 				power[ridx] += pwr_diff;
237 		}
238 	}
239 
240 	/* Apply max limit. */
241 	for (ridx = RTWN_RIDX_CCK1; ridx <= max_mcs; ridx++) {
242 		if (power[ridx] > R92C_MAX_TX_PWR)
243 			power[ridx] = R92C_MAX_TX_PWR;
244 	}
245 
246 #ifdef RTWN_DEBUG
247 	if (sc->sc_debug & RTWN_DEBUG_TXPWR) {
248 		/* Dump per-rate Tx power values. */
249 		printf("Tx power for chain %d:\n", chain);
250 		for (ridx = RTWN_RIDX_CCK1; ridx <= max_mcs; ridx++)
251 			printf("Rate %d = %u\n", ridx, power[ridx]);
252 	}
253 #endif
254 }
255 
256 static void
257 r12a_set_txpower(struct rtwn_softc *sc, struct ieee80211_channel *c)
258 {
259 	uint8_t power[RTWN_RIDX_COUNT];
260 	int i;
261 
262 	for (i = 0; i < sc->ntxchains; i++) {
263 		memset(power, 0, sizeof(power));
264 		/* Compute per-rate Tx power values. */
265 		r12a_get_txpower(sc, i, c, power);
266 		/* Write per-rate Tx power values to hardware. */
267 		r12a_write_txpower(sc, i, c, power);
268 	}
269 }
270 
271 void
272 r12a_fix_spur(struct rtwn_softc *sc, struct ieee80211_channel *c)
273 {
274 	struct r12a_softc *rs = sc->sc_priv;
275 	uint16_t chan = rtwn_chan2centieee(c);
276 
277 	if (rs->chip & R12A_CHIP_C_CUT) {
278 		if (IEEE80211_IS_CHAN_HT40(c) && chan == 11) {
279 			rtwn_bb_setbits(sc, R12A_RFMOD, 0, 0xc00);
280 			rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK, 0, 0x40000000);
281 		} else {
282 			rtwn_bb_setbits(sc, R12A_RFMOD, 0x400, 0x800);
283 
284 			if (!IEEE80211_IS_CHAN_HT40(c) &&	/* 20 MHz */
285 			    (chan == 13 || chan == 14)) {
286 				rtwn_bb_setbits(sc, R12A_RFMOD, 0, 0x300);
287 				rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK,
288 				    0, 0x40000000);
289 			} else {	/* !80 Mhz */
290 				rtwn_bb_setbits(sc, R12A_RFMOD, 0x100, 0x200);
291 				rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK,
292 				    0x40000000, 0);
293 			}
294 		}
295 	} else {
296 		/* Set ADC clock to 160M to resolve 2480 MHz spur. */
297 		if (!IEEE80211_IS_CHAN_HT40(c) &&	/* 20 MHz */
298 		    (chan == 13 || chan == 14))
299 			rtwn_bb_setbits(sc, R12A_RFMOD, 0, 0x300);
300 		else if (IEEE80211_IS_CHAN_2GHZ(c))
301 			rtwn_bb_setbits(sc, R12A_RFMOD, 0x100, 0x200);
302 	}
303 }
304 
305 static void
306 r12a_set_band(struct rtwn_softc *sc, struct ieee80211_channel *c)
307 {
308 	struct ieee80211com *ic = &sc->sc_ic;
309 	struct r12a_softc *rs = sc->sc_priv;
310 	uint32_t basicrates;
311 	uint8_t swing;
312 	int i;
313 
314 	/* Check if band was changed. */
315 	if ((sc->sc_flags & (RTWN_STARTED | RTWN_RUNNING)) !=
316 	    RTWN_STARTED && IEEE80211_IS_CHAN_5GHZ(c) ^
317 	    !(rtwn_read_1(sc, R12A_CCK_CHECK) & R12A_CCK_CHECK_5GHZ))
318 		return;
319 
320 	rtwn_get_rates(sc, ieee80211_get_suprates(ic, c), NULL, &basicrates,
321 	    NULL, 1);
322 	if (IEEE80211_IS_CHAN_2GHZ(c)) {
323 		rtwn_r12a_set_band_2ghz(sc, basicrates);
324 		swing = rs->tx_bbswing_2g;
325 	} else if (IEEE80211_IS_CHAN_5GHZ(c)) {
326 		rtwn_r12a_set_band_5ghz(sc, basicrates);
327 		swing = rs->tx_bbswing_5g;
328 	} else {
329 		KASSERT(0, ("wrong channel flags %08X\n", c->ic_flags));
330 		return;
331 	}
332 
333 	/* XXX PATH_B is set by vendor driver. */
334 	for (i = 0; i < 2; i++) {
335 		uint16_t val = 0;
336 
337 		switch ((swing >> i * 2) & 0x3) {
338 		case 0:
339 			val = 0x200;	/* 0 dB	*/
340 			break;
341 		case 1:
342 			val = 0x16a;	/* -3 dB */
343 			break;
344 		case 2:
345 			val = 0x101;	/* -6 dB */
346 			break;
347 		case 3:
348 			val = 0xb6;	/* -9 dB */
349 			break;
350 		}
351 
352 		rtwn_bb_setbits(sc, R12A_TX_SCALE(i), R12A_TX_SCALE_SWING_M,
353 		    val << R12A_TX_SCALE_SWING_S);
354 	}
355 }
356 
357 void
358 r12a_set_chan(struct rtwn_softc *sc, struct ieee80211_channel *c)
359 {
360 	uint32_t val;
361 	uint16_t chan;
362 	int i;
363 
364 	r12a_set_band(sc, c);
365 
366 	chan = rtwn_chan2centieee(c);
367 	if (36 <= chan && chan <= 48)
368 		val = 0x09280000;
369 	else if (50 <= chan && chan <= 64)
370 		val = 0x08a60000;
371 	else if (100 <= chan && chan <= 116)
372 		val = 0x08a40000;
373 	else if (118 <= chan)
374 		val = 0x08240000;
375 	else
376 		val = 0x12d40000;
377 
378 	rtwn_bb_setbits(sc, R12A_FC_AREA, 0x1ffe0000, val);
379 
380 	for (i = 0; i < sc->nrxchains; i++) {
381 		if (36 <= chan && chan <= 64)
382 			val = 0x10100;
383 		else if (100 <= chan && chan <= 140)
384 			val = 0x30100;
385 		else if (140 < chan)
386 			val = 0x50100;
387 		else
388 			val = 0x00000;
389 
390 		rtwn_rf_setbits(sc, i, R92C_RF_CHNLBW, 0x70300, val);
391 
392 		/* RTL8812AU-specific */
393 		rtwn_r12a_fix_spur(sc, c);
394 
395 		KASSERT(chan <= 0xff, ("%s: chan %d\n", __func__, chan));
396 		rtwn_rf_setbits(sc, i, R92C_RF_CHNLBW, 0xff, chan);
397 	}
398 
399 #ifdef notyet
400 	if (IEEE80211_IS_CHAN_HT80(c)) {	/* 80 MHz */
401 		rtwn_setbits_2(sc, R92C_WMAC_TRXPTCL_CTL, 0x80, 0x100);
402 
403 		/* TODO */
404 
405 		val = 0x0;
406 	} else
407 #endif
408 	if (IEEE80211_IS_CHAN_HT40(c)) {	/* 40 MHz */
409 		uint8_t ext_chan;
410 
411 		if (IEEE80211_IS_CHAN_HT40U(c))
412 			ext_chan = R12A_DATA_SEC_PRIM_DOWN_20;
413 		else
414 			ext_chan = R12A_DATA_SEC_PRIM_UP_20;
415 
416 		rtwn_setbits_2(sc, R92C_WMAC_TRXPTCL_CTL, 0x100, 0x80);
417 		rtwn_write_1(sc, R12A_DATA_SEC, ext_chan);
418 
419 		rtwn_bb_setbits(sc, R12A_RFMOD, 0x003003c3, 0x00300201);
420 		rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK, 0x40000000, 0);
421 
422 		/* discard high 4 bits */
423 		val = rtwn_bb_read(sc, R12A_RFMOD);
424 		val = RW(val, R12A_RFMOD_EXT_CHAN, ext_chan);
425 		rtwn_bb_write(sc, R12A_RFMOD, val);
426 
427 		val = rtwn_bb_read(sc, R12A_CCA_ON_SEC);
428 		val = RW(val, R12A_CCA_ON_SEC_EXT_CHAN, ext_chan);
429 		rtwn_bb_write(sc, R12A_CCA_ON_SEC, val);
430 
431 		if (rtwn_read_1(sc, 0x837) & 0x04)
432 			val = 0x01800000;
433 		else if (sc->nrxchains == 2 && sc->ntxchains == 2)
434 			val = 0x01c00000;
435 		else
436 			val = 0x02000000;
437 
438 		rtwn_bb_setbits(sc, R12A_L1_PEAK_TH, 0x03c00000, val);
439 
440 		if (IEEE80211_IS_CHAN_HT40U(c))
441 			rtwn_bb_setbits(sc, R92C_CCK0_SYSTEM, 0x10, 0);
442 		else
443 			rtwn_bb_setbits(sc, R92C_CCK0_SYSTEM, 0, 0x10);
444 
445 		val = 0x400;
446 	} else {	/* 20 MHz */
447 		rtwn_setbits_2(sc, R92C_WMAC_TRXPTCL_CTL, 0x180, 0);
448 		rtwn_write_1(sc, R12A_DATA_SEC, R12A_DATA_SEC_NO_EXT);
449 
450 		rtwn_bb_setbits(sc, R12A_RFMOD, 0x003003c3, 0x00300200);
451 		rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK, 0x40000000, 0);
452 
453 		if (sc->nrxchains == 2 && sc->ntxchains == 2)
454 			val = 0x01c00000;
455 		else
456 			val = 0x02000000;
457 
458 		rtwn_bb_setbits(sc, R12A_L1_PEAK_TH, 0x03c00000, val);
459 
460 		val = 0xc00;
461 	}
462 
463 	/* RTL8812AU-specific */
464 	rtwn_r12a_fix_spur(sc, c);
465 
466 	for (i = 0; i < sc->nrxchains; i++)
467 		rtwn_rf_setbits(sc, i, R92C_RF_CHNLBW, 0xc00, val);
468 
469 	/* Set Tx power for this new channel. */
470 	r12a_set_txpower(sc, c);
471 }
472 
473 void
474 r12a_set_band_2ghz(struct rtwn_softc *sc, uint32_t basicrates)
475 {
476 	struct r12a_softc *rs = sc->sc_priv;
477 
478 	/* Enable CCK / OFDM. */
479 	rtwn_bb_setbits(sc, R12A_OFDMCCK_EN,
480 	    0, R12A_OFDMCCK_EN_CCK | R12A_OFDMCCK_EN_OFDM);
481 
482 	rtwn_bb_setbits(sc, R12A_BW_INDICATION, 0x02, 0x01);
483 	rtwn_bb_setbits(sc, R12A_PWED_TH, 0x3e000, 0x2e000);
484 
485 	/* Select AGC table. */
486 	rtwn_bb_setbits(sc, R12A_TXAGC_TABLE_SELECT, 0x03, 0);
487 
488 	switch (rs->rfe_type) {
489 	case 0:
490 	case 1:
491 	case 2:
492 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77777777);
493 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77777777);
494 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0);
495 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0);
496 		break;
497 	case 3:
498 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x54337770);
499 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x54337770);
500 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x01000000);
501 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
502 		rtwn_bb_setbits(sc, R12A_ANTSEL_SW, 0x0303, 0x01);
503 		break;
504 	case 4:
505 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77777777);
506 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77777777);
507 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x00100000);
508 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x00100000);
509 		break;
510 	case 5:
511 		rtwn_write_1(sc, R12A_RFE_PINMUX(0) + 2, 0x77);
512 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77777777);
513 		rtwn_setbits_1(sc, R12A_RFE_INV(0) + 3, 0x01, 0);
514 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0);
515 		break;
516 	default:
517 		break;
518 	}
519 
520 	rtwn_bb_setbits(sc, R12A_TX_PATH, 0xf0, 0x10);
521 	rtwn_bb_setbits(sc, R12A_CCK_RX_PATH, 0x0f000000, 0x01000000);
522 
523 	/* Write basic rates. */
524 	rtwn_set_basicrates(sc, basicrates);
525 
526 	rtwn_write_1(sc, R12A_CCK_CHECK, 0);
527 }
528 
529 void
530 r12a_set_band_5ghz(struct rtwn_softc *sc, uint32_t basicrates)
531 {
532 	struct r12a_softc *rs = sc->sc_priv;
533 	int ntries;
534 
535 	rtwn_write_1(sc, R12A_CCK_CHECK, R12A_CCK_CHECK_5GHZ);
536 
537 	for (ntries = 0; ntries < 100; ntries++) {
538 		if ((rtwn_read_2(sc, R12A_TXPKT_EMPTY) & 0x30) == 0x30)
539 			break;
540 
541 		rtwn_delay(sc, 25);
542 	}
543 	if (ntries == 100) {
544 		device_printf(sc->sc_dev,
545 		    "%s: TXPKT_EMPTY check failed (%04X)\n",
546 		    __func__, rtwn_read_2(sc, R12A_TXPKT_EMPTY));
547 	}
548 
549 	/* Enable OFDM. */
550 	rtwn_bb_setbits(sc, R12A_OFDMCCK_EN, R12A_OFDMCCK_EN_CCK,
551 	    R12A_OFDMCCK_EN_OFDM);
552 
553 	rtwn_bb_setbits(sc, R12A_BW_INDICATION, 0x01, 0x02);
554 	rtwn_bb_setbits(sc, R12A_PWED_TH, 0x3e000, 0x2a000);
555 
556 	/* Select AGC table. */
557 	rtwn_bb_setbits(sc, R12A_TXAGC_TABLE_SELECT, 0x03, 0x01);
558 
559 	switch (rs->rfe_type) {
560 	case 0:
561 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77337717);
562 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77337717);
563 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x01000000);
564 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
565 		break;
566 	case 1:
567 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77337717);
568 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77337717);
569 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0);
570 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0);
571 		break;
572 	case 2:
573 	case 4:
574 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77337777);
575 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77337777);
576 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x01000000);
577 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
578 		break;
579 	case 3:
580 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x54337717);
581 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x54337717);
582 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x01000000);
583 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
584 		rtwn_bb_setbits(sc, R12A_ANTSEL_SW, 0x0303, 0x01);
585 		break;
586 	case 5:
587 		rtwn_write_1(sc, R12A_RFE_PINMUX(0) + 2, 0x33);
588 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77337777);
589 		rtwn_setbits_1(sc, R12A_RFE_INV(0) + 3, 0, 0x01);
590 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
591 		break;
592 	default:
593 		break;
594 	}
595 
596 	rtwn_bb_setbits(sc, R12A_TX_PATH, 0xf0, 0);
597 	rtwn_bb_setbits(sc, R12A_CCK_RX_PATH, 0, 0x0f000000);
598 
599 	/* Write basic rates. */
600 	rtwn_set_basicrates(sc, basicrates);
601 }
602