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authoradrian <adrian@FreeBSD.org>2016-04-26 01:37:03 +0000
committeradrian <adrian@FreeBSD.org>2016-04-26 01:37:03 +0000
commiteeff7ef46461dcea38df9ce0430f988a481bb5b8 (patch)
treefb2ce84a0755fbe2a5b33c60cf61dea7b62a97e5 /sys/dev
parent4df8bc5383a0fc549716f386d3b5b25e235ab95a (diff)
downloadFreeBSD-src-eeff7ef46461dcea38df9ce0430f988a481bb5b8.zip
FreeBSD-src-eeff7ef46461dcea38df9ce0430f988a481bb5b8.tar.gz
[ath] add LDPC capability support and LDPC RX support.
This enables LDPC receive support for the AR9300 chips that support it. It'll announce LDPC support via net80211. Tested: * AR9380, STA mode * AR9331, (to verify the HAL didn't attach it to a chip which doesn't support LDPC.) TODO: * Add in net80211 machinery to make this configurable at runtime.
Diffstat (limited to 'sys/dev')
-rw-r--r--sys/dev/ath/if_ath.c13
-rw-r--r--sys/dev/ath/if_athvar.h5
2 files changed, 18 insertions, 0 deletions
diff --git a/sys/dev/ath/if_ath.c b/sys/dev/ath/if_ath.c
index 9a06218..ab7cec3 100644
--- a/sys/dev/ath/if_ath.c
+++ b/sys/dev/ath/if_ath.c
@@ -1062,6 +1062,7 @@ ath_attach(u_int16_t devid, struct ath_softc *sc)
if (ath_hal_getcapability(ah, HAL_CAP_HT, 0, NULL) == HAL_OK &&
(wmodes & (HAL_MODE_HT20 | HAL_MODE_HT40))) {
uint32_t rxs, txs;
+ uint32_t ldpc;
device_printf(sc->sc_dev, "[HT] enabling HT modes\n");
@@ -1130,6 +1131,18 @@ ath_attach(u_int16_t devid, struct ath_softc *sc)
"[HT] RTS aggregates limited to %d KiB\n",
sc->sc_rts_aggr_limit / 1024);
+ /*
+ * LDPC
+ */
+ if ((ath_hal_getcapability(ah, HAL_CAP_LDPC, 0, &ldpc))
+ == HAL_OK && (ldpc == 1)) {
+ sc->sc_has_ldpc = 1;
+ device_printf(sc->sc_dev,
+ "[HT] LDPC transmit/receive enabled\n");
+ ic->ic_htcaps |= IEEE80211_HTCAP_LDPC;
+ }
+
+
device_printf(sc->sc_dev,
"[HT] %d RX streams; %d TX streams\n", rxs, txs);
}
diff --git a/sys/dev/ath/if_athvar.h b/sys/dev/ath/if_athvar.h
index 30763a2..b0ab2d1 100644
--- a/sys/dev/ath/if_athvar.h
+++ b/sys/dev/ath/if_athvar.h
@@ -653,6 +653,7 @@ struct ath_softc {
sc_use_ent : 1,
sc_rx_stbc : 1,
sc_tx_stbc : 1,
+ sc_has_ldpc : 1,
sc_hasenforcetxop : 1, /* support enforce TxOP */
sc_hasdivcomb : 1, /* RX diversity combining */
sc_rx_lnamixer : 1; /* RX using LNA mixing */
@@ -1307,6 +1308,10 @@ void ath_intr(void *);
#define ath_hal_hasdivantcomb(_ah) \
(ath_hal_getcapability(_ah, HAL_CAP_ANT_DIV_COMB, 0, NULL) == HAL_OK)
+#define ath_hal_hasldpc(_ah) \
+ (ath_hal_getcapability(_ah, HAL_CAP_LDPC, 0, NULL) == HAL_OK)
+#define ath_hal_hasldpcwar(_ah) \
+ (ath_hal_getcapability(_ah, HAL_CAP_LDPCWAR, 0, NULL) == HAL_OK)
/* EDMA definitions */
#define ath_hal_hasedma(_ah) \
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