From 4aca7a185aeba4472e7a798e5d834d7702ebbeca Mon Sep 17 00:00:00 2001 From: Daniel Kim Date: Tue, 25 Feb 2014 20:30:36 +0100 Subject: [PATCH] brcmfmac: Correct mcs index report There is a mismatch between the mcs index(0-7) reported to cfg80211 and the actual mcs index(0-15) in use. This patch resolves the mismatch by setting mcs info with the number of chains read from FW. Reviewed-by: Arend Van Spriel Signed-off-by: Daniel Kim Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- .../wireless/brcm80211/brcmfmac/wl_cfg80211.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index 474df2ce6e3b..00bd1e16c3ce 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -5306,6 +5306,8 @@ static s32 brcmf_update_wiphybands(struct brcmf_cfg80211_info *cfg) u32 band_list[3]; u32 nmode; u32 bw_cap[2] = { 0, 0 }; + u32 rxchain; + u32 nchain; s8 phy; s32 err; u32 nband; @@ -5342,6 +5344,16 @@ static s32 brcmf_update_wiphybands(struct brcmf_cfg80211_info *cfg) brcmf_dbg(INFO, "nmode=%d, bw_cap=(%d, %d)\n", nmode, bw_cap[IEEE80211_BAND_2GHZ], bw_cap[IEEE80211_BAND_5GHZ]); + err = brcmf_fil_iovar_int_get(ifp, "rxchain", &rxchain); + if (err) { + brcmf_err("rxchain error (%d)\n", err); + nchain = 1; + } else { + for (nchain = 0; rxchain; nchain++) + rxchain = rxchain & (rxchain - 1); + } + brcmf_dbg(INFO, "nchain=%d\n", nchain); + err = brcmf_construct_reginfo(cfg, bw_cap); if (err) { brcmf_err("brcmf_construct_reginfo failed (%d)\n", err); @@ -5370,10 +5382,7 @@ static s32 brcmf_update_wiphybands(struct brcmf_cfg80211_info *cfg) band->ht_cap.ht_supported = true; band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16; - /* An HT shall support all EQM rates for one spatial - * stream - */ - band->ht_cap.mcs.rx_mask[0] = 0xff; + memset(band->ht_cap.mcs.rx_mask, 0xff, nchain); band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; bands[band->band] = band; } -- 2.20.1