From: Luciano Coelho <coelho@xxxxxx>
There are some problems with MCS_13 in PG 1.0 hardware. So we disable
it when PG 1.0 is detected.
Signed-off-by: Luciano Coelho <coelho@xxxxxx>
Signed-off-by: Arik Nemtsov <arik@xxxxxxxxxx>
---
drivers/net/wireless/ti/wl18xx/main.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index 6047a6d..afa2334 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -588,6 +588,9 @@ static int wl18xx_identify_chip(struct wl1271 *wl)
WLCORE_QUIRK_FWLOG_NOT_IMPLEMENTED |
WLCORE_QUIRK_RX_BLOCKSIZE_ALIGN;
+ /* PG 1.0 has some problems with MCS_13, so disable it */
+ wl->ht_cap.mcs.rx_mask[1] &= ~BIT(5);
+
/* TODO: need to blocksize alignment for RX/TX separately? */
break;
default:
@@ -914,6 +917,10 @@ static void wl18xx_set_rx_csum(struct wl1271 *wl,
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
+/*
+ * TODO: instead of having these two functions to get the rate mask,
+ * we should modify the wlvif->rate_set instead
+ */
static u32 wl18xx_sta_get_ap_rate_mask(struct wl1271 *wl,
struct wl12xx_vif *wlvif)
{
@@ -940,6 +947,17 @@ static u32 wl18xx_ap_get_mimo_wide_rate_mask(struct wl1271 *wl,
return CONF_TX_RATE_USE_WIDE_CHAN;
} else {
wl1271_debug(DEBUG_ACX, "using MIMO rate mask");
+
+ /*
+ * PG 1.0 has some problems with MCS_13, so disable it
+ *
+ * TODO: instead of hacking this in here, we should
+ * make it more general and change a bit in the
+ * wlvif->rate_set instead.
+ */
+ if (wl->chip.id == CHIP_ID_185x_PG10)
+ return CONF_TX_MIMO_RATES & ~CONF_HW_BIT_RATE_MCS_13;
+
return CONF_TX_MIMO_RATES;
}
}
--
1.7.9.5
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