The branch main has been updated by adrian:
URL:
https://cgit.FreeBSD.org/src/commit/?id=7722d5e214772be22ef20bee46afeed2e9f78858
commit 7722d5e214772be22ef20bee46afeed2e9f78858
Author: Adrian Chadd <adr...@freebsd.org>
AuthorDate: 2024-12-04 05:58:05 +0000
Commit: Adrian Chadd <adr...@freebsd.org>
CommitDate: 2024-12-14 02:17:27 +0000
rtwn: add RTL8812/RTL8821 VHT80 channel programming, spur management
* add VHT80 channel programming
* add VHT80 spur management, sync with Linux rtw88
Obtained from: Linux rtw88
Differential Revision: https://reviews.freebsd.org/D47901
---
sys/dev/rtwn/rtl8812a/r12a_chan.c | 81 ++++++++++++++++++++++++++++++++++-----
sys/dev/rtwn/rtl8812a/r12a_reg.h | 4 ++
2 files changed, 75 insertions(+), 10 deletions(-)
diff --git a/sys/dev/rtwn/rtl8812a/r12a_chan.c
b/sys/dev/rtwn/rtl8812a/r12a_chan.c
index 789a14b0e1d6..749f0e09e831 100644
--- a/sys/dev/rtwn/rtl8812a/r12a_chan.c
+++ b/sys/dev/rtwn/rtl8812a/r12a_chan.c
@@ -374,12 +374,20 @@ r12a_fix_spur(struct rtwn_softc *sc, struct
ieee80211_channel *c)
} else {
rtwn_bb_setbits(sc, R12A_RFMOD, 0x400, 0x800);
- if (!IEEE80211_IS_CHAN_HT40(c) && /* 20 MHz */
+ if ((IEEE80211_IS_CHAN_B(c) ||
+ IEEE80211_IS_CHAN_ANYG(c) ||
+ IEEE80211_IS_CHAN_HT20(c)) && /* 2GHz, 20 MHz
*/
(chan == 13 || chan == 14)) {
rtwn_bb_setbits(sc, R12A_RFMOD, 0, 0x300);
rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK,
0, 0x40000000);
- } else { /* !80 Mhz */
+ } else if (IEEE80211_IS_CHAN_HT40(c) ||
+ IEEE80211_IS_CHAN_VHT40(c)) {
+ /* XXX double check! */
+ rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK,
+ 0, 0x40000000);
+ } else if (IEEE80211_IS_CHAN_VHT80(c)) {
+ /* XXX double check! */
rtwn_bb_setbits(sc, R12A_RFMOD, 0x100, 0x200);
rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK,
0x40000000, 0);
@@ -387,7 +395,9 @@ r12a_fix_spur(struct rtwn_softc *sc, struct
ieee80211_channel *c)
}
} else {
/* Set ADC clock to 160M to resolve 2480 MHz spur. */
- if (!IEEE80211_IS_CHAN_HT40(c) && /* 20 MHz */
+ if ((IEEE80211_IS_CHAN_B(c) ||
+ IEEE80211_IS_CHAN_ANYG(c) ||
+ IEEE80211_IS_CHAN_HT20(c)) && /* 2GHz, 20 MHz */
(chan == 13 || chan == 14))
rtwn_bb_setbits(sc, R12A_RFMOD, 0, 0x300);
else if (IEEE80211_IS_CHAN_2GHZ(c))
@@ -489,16 +499,67 @@ r12a_set_chan(struct rtwn_softc *sc, struct
ieee80211_channel *c)
rtwn_rf_setbits(sc, i, R92C_RF_CHNLBW, 0xff, chan);
}
-#ifdef notyet
- if (IEEE80211_IS_CHAN_HT80(c)) { /* 80 MHz */
- rtwn_setbits_2(sc, R92C_WMAC_TRXPTCL_CTL, 0x80, 0x100);
+ if (IEEE80211_IS_CHAN_VHT80(c)) { /* 80 MHz */
+ uint8_t ext20 = 0, ext40 = 0;
+ uint8_t txsc;
+ /* calculate ext20/ext40 */
+ if (c->ic_ieee > c->ic_vht_ch_freq1) {
+ if (c->ic_ieee - c->ic_vht_ch_freq1 == 2) {
+ ext20 = R12A_DATA_SEC_PRIM_UP_20;
+ ext40 = R12A_DATA_SEC_PRIM_UP_40;
+ } else {
+ ext20 = R12A_DATA_SEC_PRIM_UPPER_20;
+ ext40 = R12A_DATA_SEC_PRIM_UP_40;
+ }
+ } else {
+ if (c->ic_vht_ch_freq1 - c->ic_ieee == 2) {
+ ext20 = R12A_DATA_SEC_PRIM_DOWN_20;
+ ext40 = R12A_DATA_SEC_PRIM_DOWN_40;
+ } else {
+ ext20 = R12A_DATA_SEC_PRIM_LOWER_20;
+ ext40 = R12A_DATA_SEC_PRIM_DOWN_40;
+ }
+ }
+ /* Form txsc from sec20/sec40 config */
+ txsc = SM(R12A_DATA_SEC_TXSC_20M, ext20);
+ txsc |= SM(R12A_DATA_SEC_TXSC_40M, ext40);
+
+ rtwn_setbits_2(sc, R92C_WMAC_TRXPTCL_CTL, 0x180, 0x100);
- /* TODO */
+ /* DATA_SEC, for ext20/ext40 */
+ rtwn_write_1(sc, R12A_DATA_SEC, txsc);
+
+ /* ADCCLK */
+ rtwn_bb_setbits(sc, R12A_RFMOD, 0x003003c3, 0x00300202);
+
+ /* ADC160 - Set bit 30 */
+ rtwn_bb_setbits(sc, R12A_ADC_BUF_CLK, 0, 0x40000000);
+
+ /* ADCCLK, ext20 */
+ /* discard high 4 bits */
+ val = rtwn_bb_read(sc, R12A_RFMOD);
+ val = RW(val, R12A_RFMOD_EXT_CHAN, ext20);
+ rtwn_bb_write(sc, R12A_RFMOD, val);
+ /* CCA2ND, ext20 */
+ val = rtwn_bb_read(sc, R12A_CCA_ON_SEC);
+ val = RW(val, R12A_CCA_ON_SEC_EXT_CHAN, ext20);
+ rtwn_bb_write(sc, R12A_CCA_ON_SEC, val);
+
+ /* PEAK_TH */
+ if (rtwn_read_1(sc, 0x837) & 0x04)
+ val = 0x01400000;
+ else if (sc->nrxchains == 2 && sc->ntxchains == 2)
+ val = 0x01800000;
+ else
+ val = 0x01c00000;
+
+ rtwn_bb_setbits(sc, R12A_L1_PEAK_TH, 0x03c00000, val);
+ /* BWMASK */
val = 0x0;
- } else
-#endif
- if (IEEE80211_IS_CHAN_HT40(c)) { /* 40 MHz */
+
+ } else if (IEEE80211_IS_CHAN_HT40(c) ||
+ IEEE80211_IS_CHAN_VHT40(c)) { /* 40 MHz */
uint8_t ext_chan;
if (IEEE80211_IS_CHAN_HT40U(c))
diff --git a/sys/dev/rtwn/rtl8812a/r12a_reg.h b/sys/dev/rtwn/rtl8812a/r12a_reg.h
index 4f5f6f28c11a..13867fb76973 100644
--- a/sys/dev/rtwn/rtl8812a/r12a_reg.h
+++ b/sys/dev/rtwn/rtl8812a/r12a_reg.h
@@ -45,6 +45,10 @@
#define R12A_AMPDU_MAX_TIME 0x456
#define R12A_AMPDU_MAX_LENGTH R92C_AGGLEN_LMT
#define R12A_DATA_SEC 0x483
+#define R12A_DATA_SEC_TXSC_20M_M 0x0000000f
+#define R12A_DATA_SEC_TXSC_20M_S 0
+#define R12A_DATA_SEC_TXSC_40M_M 0x000000f0
+#define R12A_DATA_SEC_TXSC_40M_S 4
#define R12A_ARFR_2G(i) (0x48c + (i) * 8)
#define R12A_HT_SINGLE_AMPDU 0x4c7
