From 8abffd8173a1c64eaa951f2527635c12b5a4ecc3 Mon Sep 17 00:00:00 2001 From: Hante Meuleman Date: Thu, 29 Oct 2015 20:33:16 +0100 Subject: [PATCH] brcmfmac: Add RSDB support. Broadcom devices with a single 802.11 core can work on two band concurrently using VSDB feature, ie. Virtual Simultaneous Dual-Band. For devices that are fitted with two 802.11 cores and RF paths the driver should support a firmware feature called RSDB, which stands for Real Simultaneous Dual-Band. RSDB works almost autonomously in firmware except for AP config. When the device supports RSDB then the interface should not be brought down when configuring it, otherwise the link (if configured) on the other interface will be lost. Reviewed-by: Arend Van Spriel Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Hante Meuleman Signed-off-by: Arend van Spriel [kvalo@codeaurora.org: changed the commit log based on discussion] Signed-off-by: Kalle Valo --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 4 +++- drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c | 1 + drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h | 5 ++++- 3 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index deb5f78..8a3c9fa 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -4183,7 +4183,9 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev, } } - if (dev_role == NL80211_IFTYPE_AP) { + if ((dev_role == NL80211_IFTYPE_AP) && + ((ifp->ifidx == 0) || + !brcmf_feat_is_enabled(ifp, BRCMF_FEAT_RSDB))) { err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); if (err < 0) { brcmf_err("BRCMF_C_DOWN error %d\n", err); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c index 44bb306..ba52494 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c @@ -137,6 +137,7 @@ void brcmf_feat_attach(struct brcmf_pub *drvr) if (drvr->bus_if->chip != BRCM_CC_43362_CHIP_ID) brcmf_feat_iovar_int_set(ifp, BRCMF_FEAT_MBSS, "mbss", 0); brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_P2P, "p2p"); + brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_RSDB, "rsdb_mode"); if (brcmf_feature_disable) { brcmf_dbg(INFO, "Features: 0x%02x, disable: 0x%02x\n", diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h index 6b381f7..5381758 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h @@ -24,13 +24,16 @@ * PNO: preferred network offload. * WOWL: Wake-On-WLAN. * P2P: peer-to-peer + * RSDB: Real Simultaneous Dual Band */ #define BRCMF_FEAT_LIST \ BRCMF_FEAT_DEF(MBSS) \ BRCMF_FEAT_DEF(MCHAN) \ BRCMF_FEAT_DEF(PNO) \ BRCMF_FEAT_DEF(WOWL) \ - BRCMF_FEAT_DEF(P2P) + BRCMF_FEAT_DEF(P2P) \ + BRCMF_FEAT_DEF(RSDB) + /* * Quirks: * -- 2.7.4