xref: /freebsd/sys/dev/rtwn/rtl8812a/r12a_chan.c (revision cfd6422a5217410fbd66f7a7a8a64d9d85e61229)
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 static void
65 r12a_write_txpower(struct rtwn_softc *sc, int chain,
66     struct ieee80211_channel *c, uint8_t power[RTWN_RIDX_COUNT])
67 {
68 
69 	if (IEEE80211_IS_CHAN_2GHZ(c)) {
70 		/* Write per-CCK rate Tx power. */
71 		rtwn_bb_write(sc, R12A_TXAGC_CCK11_1(chain),
72 		    SM(R12A_TXAGC_CCK1,  power[RTWN_RIDX_CCK1]) |
73 		    SM(R12A_TXAGC_CCK2,  power[RTWN_RIDX_CCK2]) |
74 		    SM(R12A_TXAGC_CCK55, power[RTWN_RIDX_CCK55]) |
75 		    SM(R12A_TXAGC_CCK11, power[RTWN_RIDX_CCK11]));
76 	}
77 
78 	/* Write per-OFDM rate Tx power. */
79 	rtwn_bb_write(sc, R12A_TXAGC_OFDM18_6(chain),
80 	    SM(R12A_TXAGC_OFDM06, power[RTWN_RIDX_OFDM6]) |
81 	    SM(R12A_TXAGC_OFDM09, power[RTWN_RIDX_OFDM9]) |
82 	    SM(R12A_TXAGC_OFDM12, power[RTWN_RIDX_OFDM12]) |
83 	    SM(R12A_TXAGC_OFDM18, power[RTWN_RIDX_OFDM18]));
84 	rtwn_bb_write(sc, R12A_TXAGC_OFDM54_24(chain),
85 	    SM(R12A_TXAGC_OFDM24, power[RTWN_RIDX_OFDM24]) |
86 	    SM(R12A_TXAGC_OFDM36, power[RTWN_RIDX_OFDM36]) |
87 	    SM(R12A_TXAGC_OFDM48, power[RTWN_RIDX_OFDM48]) |
88 	    SM(R12A_TXAGC_OFDM54, power[RTWN_RIDX_OFDM54]));
89 	/* Write per-MCS Tx power. */
90 	rtwn_bb_write(sc, R12A_TXAGC_MCS3_0(chain),
91 	    SM(R12A_TXAGC_MCS0, power[RTWN_RIDX_HT_MCS(0)]) |
92 	    SM(R12A_TXAGC_MCS1, power[RTWN_RIDX_HT_MCS(1)]) |
93 	    SM(R12A_TXAGC_MCS2, power[RTWN_RIDX_HT_MCS(2)]) |
94 	    SM(R12A_TXAGC_MCS3, power[RTWN_RIDX_HT_MCS(3)]));
95 	rtwn_bb_write(sc, R12A_TXAGC_MCS7_4(chain),
96 	    SM(R12A_TXAGC_MCS4, power[RTWN_RIDX_HT_MCS(4)]) |
97 	    SM(R12A_TXAGC_MCS5, power[RTWN_RIDX_HT_MCS(5)]) |
98 	    SM(R12A_TXAGC_MCS6, power[RTWN_RIDX_HT_MCS(6)]) |
99 	    SM(R12A_TXAGC_MCS7, power[RTWN_RIDX_HT_MCS(7)]));
100 	if (sc->ntxchains >= 2) {
101 		rtwn_bb_write(sc, R12A_TXAGC_MCS11_8(chain),
102 		    SM(R12A_TXAGC_MCS8,  power[RTWN_RIDX_HT_MCS(8)]) |
103 		    SM(R12A_TXAGC_MCS9,  power[RTWN_RIDX_HT_MCS(9)]) |
104 		    SM(R12A_TXAGC_MCS10, power[RTWN_RIDX_HT_MCS(10)]) |
105 		    SM(R12A_TXAGC_MCS11, power[RTWN_RIDX_HT_MCS(11)]));
106 		rtwn_bb_write(sc, R12A_TXAGC_MCS15_12(chain),
107 		    SM(R12A_TXAGC_MCS12, power[RTWN_RIDX_HT_MCS(12)]) |
108 		    SM(R12A_TXAGC_MCS13, power[RTWN_RIDX_HT_MCS(13)]) |
109 		    SM(R12A_TXAGC_MCS14, power[RTWN_RIDX_HT_MCS(14)]) |
110 		    SM(R12A_TXAGC_MCS15, power[RTWN_RIDX_HT_MCS(15)]));
111 	}
112 
113 	/* TODO: VHT rates */
114 }
115 
116 static int
117 r12a_get_power_group(struct rtwn_softc *sc, struct ieee80211_channel *c)
118 {
119 	uint8_t chan;
120 	int group;
121 
122 	chan = rtwn_chan2centieee(c);
123 	if (IEEE80211_IS_CHAN_2GHZ(c)) {
124 		if (chan <= 2)			group = 0;
125 		else if (chan <= 5)		group = 1;
126 		else if (chan <= 8)		group = 2;
127 		else if (chan <= 11)		group = 3;
128 		else if (chan <= 14)		group = 4;
129 		else {
130 			KASSERT(0, ("wrong 2GHz channel %d!\n", chan));
131 			return (-1);
132 		}
133 	} else if (IEEE80211_IS_CHAN_5GHZ(c)) {
134 		if (chan < 36)
135 			return (-1);
136 
137 		if (chan <= 42)			group = 0;
138 		else if (chan <= 48)		group = 1;
139 		else if (chan <= 58)		group = 2;
140 		else if (chan <= 64)		group = 3;
141 		else if (chan <= 106)		group = 4;
142 		else if (chan <= 114)		group = 5;
143 		else if (chan <= 122)		group = 6;
144 		else if (chan <= 130)		group = 7;
145 		else if (chan <= 138)		group = 8;
146 		else if (chan <= 144)		group = 9;
147 		else if (chan <= 155)		group = 10;
148 		else if (chan <= 161)		group = 11;
149 		else if (chan <= 171)		group = 12;
150 		else if (chan <= 177)		group = 13;
151 		else {
152 			KASSERT(0, ("wrong 5GHz channel %d!\n", chan));
153 			return (-1);
154 		}
155 	} else {
156 		KASSERT(0, ("wrong channel band (flags %08X)\n", c->ic_flags));
157 		return (-1);
158 	}
159 
160 	return (group);
161 }
162 
163 static void
164 r12a_get_txpower(struct rtwn_softc *sc, int chain,
165     struct ieee80211_channel *c, uint8_t power[RTWN_RIDX_COUNT])
166 {
167 	struct r12a_softc *rs = sc->sc_priv;
168 	int i, ridx, group, max_mcs;
169 
170 	/* Determine channel group. */
171 	group = r12a_get_power_group(sc, c);
172 	if (group == -1) {	/* shouldn't happen */
173 		device_printf(sc->sc_dev, "%s: incorrect channel\n", __func__);
174 		return;
175 	}
176 
177 	/* TODO: VHT rates. */
178 	max_mcs = RTWN_RIDX_HT_MCS(sc->ntxchains * 8 - 1);
179 
180 	/* XXX regulatory */
181 	/* XXX net80211 regulatory */
182 
183 	if (IEEE80211_IS_CHAN_2GHZ(c)) {
184 		for (ridx = RTWN_RIDX_CCK1; ridx <= RTWN_RIDX_CCK11; ridx++)
185 			power[ridx] = rs->cck_tx_pwr[chain][group];
186 		for (ridx = RTWN_RIDX_OFDM6; ridx <= max_mcs; ridx++)
187 			power[ridx] = rs->ht40_tx_pwr_2g[chain][group];
188 
189 		for (ridx = RTWN_RIDX_OFDM6; ridx <= RTWN_RIDX_OFDM54; ridx++)
190 			power[ridx] += rs->ofdm_tx_pwr_diff_2g[chain][0];
191 
192 		for (i = 0; i < sc->ntxchains; i++) {
193 			uint8_t min_mcs;
194 			uint8_t pwr_diff;
195 
196 #ifdef notyet
197 			if (IEEE80211_IS_CHAN_HT80(c)) {
198 				/* Vendor driver uses HT40 values here. */
199 				pwr_diff = rs->bw40_tx_pwr_diff_2g[chain][i];
200 			} else
201 #endif
202 			if (IEEE80211_IS_CHAN_HT40(c))
203 				pwr_diff = rs->bw40_tx_pwr_diff_2g[chain][i];
204 			else
205 				pwr_diff = rs->bw20_tx_pwr_diff_2g[chain][i];
206 
207 			min_mcs = RTWN_RIDX_HT_MCS(i * 8);
208 			for (ridx = min_mcs; ridx <= max_mcs; ridx++)
209 				power[ridx] += pwr_diff;
210 		}
211 	} else {	/* 5GHz */
212 		for (ridx = RTWN_RIDX_OFDM6; ridx <= max_mcs; ridx++)
213 			power[ridx] = rs->ht40_tx_pwr_5g[chain][group];
214 
215 		for (ridx = RTWN_RIDX_OFDM6; ridx <= RTWN_RIDX_OFDM54; ridx++)
216 			power[ridx] += rs->ofdm_tx_pwr_diff_5g[chain][0];
217 
218 		for (i = 0; i < sc->ntxchains; i++) {
219 			uint8_t min_mcs;
220 			uint8_t pwr_diff;
221 
222 #ifdef notyet
223 			if (IEEE80211_IS_CHAN_HT80(c)) {
224 				/* TODO: calculate base value. */
225 				pwr_diff = rs->bw80_tx_pwr_diff_5g[chain][i];
226 			} else
227 #endif
228 			if (IEEE80211_IS_CHAN_HT40(c))
229 				pwr_diff = rs->bw40_tx_pwr_diff_5g[chain][i];
230 			else
231 				pwr_diff = rs->bw20_tx_pwr_diff_5g[chain][i];
232 
233 			min_mcs = RTWN_RIDX_HT_MCS(i * 8);
234 			for (ridx = min_mcs; ridx <= max_mcs; ridx++)
235 				power[ridx] += pwr_diff;
236 		}
237 	}
238 
239 	/* Apply max limit. */
240 	for (ridx = RTWN_RIDX_CCK1; ridx <= max_mcs; ridx++) {
241 		if (power[ridx] > R92C_MAX_TX_PWR)
242 			power[ridx] = R92C_MAX_TX_PWR;
243 	}
244 
245 #ifdef RTWN_DEBUG
246 	if (sc->sc_debug & RTWN_DEBUG_TXPWR) {
247 		/* Dump per-rate Tx power values. */
248 		printf("Tx power for chain %d:\n", chain);
249 		for (ridx = RTWN_RIDX_CCK1; ridx <= max_mcs; ridx++)
250 			printf("Rate %d = %u\n", ridx, power[ridx]);
251 	}
252 #endif
253 }
254 
255 static void
256 r12a_set_txpower(struct rtwn_softc *sc, struct ieee80211_channel *c)
257 {
258 	uint8_t power[RTWN_RIDX_COUNT];
259 	int i;
260 
261 	for (i = 0; i < sc->ntxchains; i++) {
262 		memset(power, 0, sizeof(power));
263 		/* Compute per-rate Tx power values. */
264 		r12a_get_txpower(sc, i, c, power);
265 		/* Write per-rate Tx power values to hardware. */
266 		r12a_write_txpower(sc, i, c, power);
267 	}
268 }
269 
270 void
271 r12a_fix_spur(struct rtwn_softc *sc, struct ieee80211_channel *c)
272 {
273 	struct r12a_softc *rs = sc->sc_priv;
274 	uint16_t chan = rtwn_chan2centieee(c);
275 
276 	if (rs->chip & R12A_CHIP_C_CUT) {
277 		if (IEEE80211_IS_CHAN_HT40(c) && chan == 11) {
278 			rtwn_bb_setbits(sc, R12A_RFMOD, 0, 0xc00);
279 			rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK, 0, 0x40000000);
280 		} else {
281 			rtwn_bb_setbits(sc, R12A_RFMOD, 0x400, 0x800);
282 
283 			if (!IEEE80211_IS_CHAN_HT40(c) &&	/* 20 MHz */
284 			    (chan == 13 || chan == 14)) {
285 				rtwn_bb_setbits(sc, R12A_RFMOD, 0, 0x300);
286 				rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK,
287 				    0, 0x40000000);
288 			} else {	/* !80 Mhz */
289 				rtwn_bb_setbits(sc, R12A_RFMOD, 0x100, 0x200);
290 				rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK,
291 				    0x40000000, 0);
292 			}
293 		}
294 	} else {
295 		/* Set ADC clock to 160M to resolve 2480 MHz spur. */
296 		if (!IEEE80211_IS_CHAN_HT40(c) &&	/* 20 MHz */
297 		    (chan == 13 || chan == 14))
298 			rtwn_bb_setbits(sc, R12A_RFMOD, 0, 0x300);
299 		else if (IEEE80211_IS_CHAN_2GHZ(c))
300 			rtwn_bb_setbits(sc, R12A_RFMOD, 0x100, 0x200);
301 	}
302 }
303 
304 static void
305 r12a_set_band(struct rtwn_softc *sc, struct ieee80211_channel *c)
306 {
307 	struct ieee80211com *ic = &sc->sc_ic;
308 	struct r12a_softc *rs = sc->sc_priv;
309 	uint32_t basicrates;
310 	uint8_t swing;
311 	int i;
312 
313 	/* Check if band was changed. */
314 	if ((sc->sc_flags & (RTWN_STARTED | RTWN_RUNNING)) !=
315 	    RTWN_STARTED && IEEE80211_IS_CHAN_5GHZ(c) ^
316 	    !(rtwn_read_1(sc, R12A_CCK_CHECK) & R12A_CCK_CHECK_5GHZ))
317 		return;
318 
319 	rtwn_get_rates(sc, ieee80211_get_suprates(ic, c), NULL, &basicrates,
320 	    NULL, 1);
321 	if (IEEE80211_IS_CHAN_2GHZ(c)) {
322 		rtwn_r12a_set_band_2ghz(sc, basicrates);
323 		swing = rs->tx_bbswing_2g;
324 	} else if (IEEE80211_IS_CHAN_5GHZ(c)) {
325 		rtwn_r12a_set_band_5ghz(sc, basicrates);
326 		swing = rs->tx_bbswing_5g;
327 	} else {
328 		KASSERT(0, ("wrong channel flags %08X\n", c->ic_flags));
329 		return;
330 	}
331 
332 	/* XXX PATH_B is set by vendor driver. */
333 	for (i = 0; i < 2; i++) {
334 		uint16_t val = 0;
335 
336 		switch ((swing >> i * 2) & 0x3) {
337 		case 0:
338 			val = 0x200;	/* 0 dB	*/
339 			break;
340 		case 1:
341 			val = 0x16a;	/* -3 dB */
342 			break;
343 		case 2:
344 			val = 0x101;	/* -6 dB */
345 			break;
346 		case 3:
347 			val = 0xb6;	/* -9 dB */
348 			break;
349 		}
350 
351 		rtwn_bb_setbits(sc, R12A_TX_SCALE(i), R12A_TX_SCALE_SWING_M,
352 		    val << R12A_TX_SCALE_SWING_S);
353 	}
354 }
355 
356 void
357 r12a_set_chan(struct rtwn_softc *sc, struct ieee80211_channel *c)
358 {
359 	uint32_t val;
360 	uint16_t chan;
361 	int i;
362 
363 	r12a_set_band(sc, c);
364 
365 	chan = rtwn_chan2centieee(c);
366 	if (36 <= chan && chan <= 48)
367 		val = 0x09280000;
368 	else if (50 <= chan && chan <= 64)
369 		val = 0x08a60000;
370 	else if (100 <= chan && chan <= 116)
371 		val = 0x08a40000;
372 	else if (118 <= chan)
373 		val = 0x08240000;
374 	else
375 		val = 0x12d40000;
376 
377 	rtwn_bb_setbits(sc, R12A_FC_AREA, 0x1ffe0000, val);
378 
379 	for (i = 0; i < sc->nrxchains; i++) {
380 		if (36 <= chan && chan <= 64)
381 			val = 0x10100;
382 		else if (100 <= chan && chan <= 140)
383 			val = 0x30100;
384 		else if (140 < chan)
385 			val = 0x50100;
386 		else
387 			val = 0x00000;
388 
389 		rtwn_rf_setbits(sc, i, R92C_RF_CHNLBW, 0x70300, val);
390 
391 		/* RTL8812AU-specific */
392 		rtwn_r12a_fix_spur(sc, c);
393 
394 		KASSERT(chan <= 0xff, ("%s: chan %d\n", __func__, chan));
395 		rtwn_rf_setbits(sc, i, R92C_RF_CHNLBW, 0xff, chan);
396 	}
397 
398 #ifdef notyet
399 	if (IEEE80211_IS_CHAN_HT80(c)) {	/* 80 MHz */
400 		rtwn_setbits_2(sc, R92C_WMAC_TRXPTCL_CTL, 0x80, 0x100);
401 
402 		/* TODO */
403 
404 		val = 0x0;
405 	} else
406 #endif
407 	if (IEEE80211_IS_CHAN_HT40(c)) {	/* 40 MHz */
408 		uint8_t ext_chan;
409 
410 		if (IEEE80211_IS_CHAN_HT40U(c))
411 			ext_chan = R12A_DATA_SEC_PRIM_DOWN_20;
412 		else
413 			ext_chan = R12A_DATA_SEC_PRIM_UP_20;
414 
415 		rtwn_setbits_2(sc, R92C_WMAC_TRXPTCL_CTL, 0x100, 0x80);
416 		rtwn_write_1(sc, R12A_DATA_SEC, ext_chan);
417 
418 		rtwn_bb_setbits(sc, R12A_RFMOD, 0x003003c3, 0x00300201);
419 		rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK, 0x40000000, 0);
420 
421 		/* discard high 4 bits */
422 		val = rtwn_bb_read(sc, R12A_RFMOD);
423 		val = RW(val, R12A_RFMOD_EXT_CHAN, ext_chan);
424 		rtwn_bb_write(sc, R12A_RFMOD, val);
425 
426 		val = rtwn_bb_read(sc, R12A_CCA_ON_SEC);
427 		val = RW(val, R12A_CCA_ON_SEC_EXT_CHAN, ext_chan);
428 		rtwn_bb_write(sc, R12A_CCA_ON_SEC, val);
429 
430 		if (rtwn_read_1(sc, 0x837) & 0x04)
431 			val = 0x01800000;
432 		else if (sc->nrxchains == 2 && sc->ntxchains == 2)
433 			val = 0x01c00000;
434 		else
435 			val = 0x02000000;
436 
437 		rtwn_bb_setbits(sc, R12A_L1_PEAK_TH, 0x03c00000, val);
438 
439 		if (IEEE80211_IS_CHAN_HT40U(c))
440 			rtwn_bb_setbits(sc, R92C_CCK0_SYSTEM, 0x10, 0);
441 		else
442 			rtwn_bb_setbits(sc, R92C_CCK0_SYSTEM, 0, 0x10);
443 
444 		val = 0x400;
445 	} else {	/* 20 MHz */
446 		rtwn_setbits_2(sc, R92C_WMAC_TRXPTCL_CTL, 0x180, 0);
447 		rtwn_write_1(sc, R12A_DATA_SEC, R12A_DATA_SEC_NO_EXT);
448 
449 		rtwn_bb_setbits(sc, R12A_RFMOD, 0x003003c3, 0x00300200);
450 		rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK, 0x40000000, 0);
451 
452 		if (sc->nrxchains == 2 && sc->ntxchains == 2)
453 			val = 0x01c00000;
454 		else
455 			val = 0x02000000;
456 
457 		rtwn_bb_setbits(sc, R12A_L1_PEAK_TH, 0x03c00000, val);
458 
459 		val = 0xc00;
460 	}
461 
462 	/* RTL8812AU-specific */
463 	rtwn_r12a_fix_spur(sc, c);
464 
465 	for (i = 0; i < sc->nrxchains; i++)
466 		rtwn_rf_setbits(sc, i, R92C_RF_CHNLBW, 0xc00, val);
467 
468 	/* Set Tx power for this new channel. */
469 	r12a_set_txpower(sc, c);
470 }
471 
472 void
473 r12a_set_band_2ghz(struct rtwn_softc *sc, uint32_t basicrates)
474 {
475 	struct r12a_softc *rs = sc->sc_priv;
476 
477 	/* Enable CCK / OFDM. */
478 	rtwn_bb_setbits(sc, R12A_OFDMCCK_EN,
479 	    0, R12A_OFDMCCK_EN_CCK | R12A_OFDMCCK_EN_OFDM);
480 
481 	rtwn_bb_setbits(sc, R12A_BW_INDICATION, 0x02, 0x01);
482 	rtwn_bb_setbits(sc, R12A_PWED_TH, 0x3e000, 0x2e000);
483 
484 	/* Select AGC table. */
485 	rtwn_bb_setbits(sc, R12A_TXAGC_TABLE_SELECT, 0x03, 0);
486 
487 	switch (rs->rfe_type) {
488 	case 0:
489 	case 1:
490 	case 2:
491 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77777777);
492 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77777777);
493 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0);
494 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0);
495 		break;
496 	case 3:
497 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x54337770);
498 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x54337770);
499 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x01000000);
500 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
501 		rtwn_bb_setbits(sc, R12A_ANTSEL_SW, 0x0303, 0x01);
502 		break;
503 	case 4:
504 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77777777);
505 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77777777);
506 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x00100000);
507 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x00100000);
508 		break;
509 	case 5:
510 		rtwn_write_1(sc, R12A_RFE_PINMUX(0) + 2, 0x77);
511 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77777777);
512 		rtwn_setbits_1(sc, R12A_RFE_INV(0) + 3, 0x01, 0);
513 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0);
514 		break;
515 	default:
516 		break;
517 	}
518 
519 	rtwn_bb_setbits(sc, R12A_TX_PATH, 0xf0, 0x10);
520 	rtwn_bb_setbits(sc, R12A_CCK_RX_PATH, 0x0f000000, 0x01000000);
521 
522 	/* Write basic rates. */
523 	rtwn_set_basicrates(sc, basicrates);
524 
525 	rtwn_write_1(sc, R12A_CCK_CHECK, 0);
526 }
527 
528 void
529 r12a_set_band_5ghz(struct rtwn_softc *sc, uint32_t basicrates)
530 {
531 	struct r12a_softc *rs = sc->sc_priv;
532 	int ntries;
533 
534 	rtwn_write_1(sc, R12A_CCK_CHECK, R12A_CCK_CHECK_5GHZ);
535 
536 	for (ntries = 0; ntries < 100; ntries++) {
537 		if ((rtwn_read_2(sc, R12A_TXPKT_EMPTY) & 0x30) == 0x30)
538 			break;
539 
540 		rtwn_delay(sc, 25);
541 	}
542 	if (ntries == 100) {
543 		device_printf(sc->sc_dev,
544 		    "%s: TXPKT_EMPTY check failed (%04X)\n",
545 		    __func__, rtwn_read_2(sc, R12A_TXPKT_EMPTY));
546 	}
547 
548 	/* Enable OFDM. */
549 	rtwn_bb_setbits(sc, R12A_OFDMCCK_EN, R12A_OFDMCCK_EN_CCK,
550 	    R12A_OFDMCCK_EN_OFDM);
551 
552 	rtwn_bb_setbits(sc, R12A_BW_INDICATION, 0x01, 0x02);
553 	rtwn_bb_setbits(sc, R12A_PWED_TH, 0x3e000, 0x2a000);
554 
555 	/* Select AGC table. */
556 	rtwn_bb_setbits(sc, R12A_TXAGC_TABLE_SELECT, 0x03, 0x01);
557 
558 	switch (rs->rfe_type) {
559 	case 0:
560 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77337717);
561 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77337717);
562 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x01000000);
563 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
564 		break;
565 	case 1:
566 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77337717);
567 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77337717);
568 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0);
569 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0);
570 		break;
571 	case 2:
572 	case 4:
573 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x77337777);
574 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77337777);
575 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x01000000);
576 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
577 		break;
578 	case 3:
579 		rtwn_bb_write(sc, R12A_RFE_PINMUX(0), 0x54337717);
580 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x54337717);
581 		rtwn_bb_setbits(sc, R12A_RFE_INV(0), 0x3ff00000, 0x01000000);
582 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
583 		rtwn_bb_setbits(sc, R12A_ANTSEL_SW, 0x0303, 0x01);
584 		break;
585 	case 5:
586 		rtwn_write_1(sc, R12A_RFE_PINMUX(0) + 2, 0x33);
587 		rtwn_bb_write(sc, R12A_RFE_PINMUX(1), 0x77337777);
588 		rtwn_setbits_1(sc, R12A_RFE_INV(0) + 3, 0, 0x01);
589 		rtwn_bb_setbits(sc, R12A_RFE_INV(1), 0x3ff00000, 0x01000000);
590 		break;
591 	default:
592 		break;
593 	}
594 
595 	rtwn_bb_setbits(sc, R12A_TX_PATH, 0xf0, 0);
596 	rtwn_bb_setbits(sc, R12A_CCK_RX_PATH, 0, 0x0f000000);
597 
598 	/* Write basic rates. */
599 	rtwn_set_basicrates(sc, basicrates);
600 }
601