commit 4896d7642fd34251ba7119bcb8304d9a73e51bf8
author Gregory Greenman <gregory.greenman@intel.com> Sun Apr 03 14:06:12 2016 +0300
committer Luca Coelho <luciano.coelho@intel.com> Tue May 10 22:14:49 2016 +0300
tree 6b070c526f97d0e0f2f23d1037174487f8523be0
parent 1afb0ae4217423f7864cba0684362de99782fa4e

iwlwifi: consider VHT 160MHz while parsing NVM

Devices belonging to 9000 family can support VHT 160MHz channel
width, so need to consider it when configuring VHT capabilities.
However, NVM file doesn't have a single bit specifying that 160MHz
is supported. This patch turns on 160MHz support in VHT capabilities
in case there's at least one channel supporting 160MHz.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/iwl-eeprom-parse.h

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-eeprom-parse.h b/drivers/net/wireless/intel/iwlwifi/iwl-eeprom-parse.h
index 53f39a3..1f4e502 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-eeprom-parse.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-eeprom-parse.h
@@ -98,6 +98,7 @@
 	s8 max_tx_pwr_half_dbm;
 
 	bool lar_enabled;
+	bool vht160_supported;
 	struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
 	struct ieee80211_channel channels[];
 };

drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
index 14743c3..b13f409 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
@@ -288,6 +288,9 @@
 		    !data->sku_cap_band_52GHz_enable)
 			continue;
 
+		if (ch_flags & NVM_CHANNEL_160MHZ)
+			data->vht160_supported = true;
+
 		if (!lar_supported && !(ch_flags & NVM_CHANNEL_VALID)) {
 			/*
 			 * Channels might become valid later if lar is
@@ -331,17 +334,20 @@
 			channel->flags = 0;
 
 		IWL_DEBUG_EEPROM(dev,
-				 "Ch. %d [%sGHz] %s%s%s%s%s%s%s(0x%02x %ddBm): Ad-Hoc %ssupported\n",
+				 "Ch. %d [%sGHz] flags 0x%x %s%s%s%s%s%s%s%s%s%s(%ddBm): Ad-Hoc %ssupported\n",
 				 channel->hw_value,
 				 is_5ghz ? "5.2" : "2.4",
+				 ch_flags,
 				 CHECK_AND_PRINT_I(VALID),
 				 CHECK_AND_PRINT_I(IBSS),
 				 CHECK_AND_PRINT_I(ACTIVE),
 				 CHECK_AND_PRINT_I(RADAR),
-				 CHECK_AND_PRINT_I(WIDE),
 				 CHECK_AND_PRINT_I(INDOOR_ONLY),
 				 CHECK_AND_PRINT_I(GO_CONCURRENT),
-				 ch_flags,
+				 CHECK_AND_PRINT_I(WIDE),
+				 CHECK_AND_PRINT_I(40MHZ),
+				 CHECK_AND_PRINT_I(80MHZ),
+				 CHECK_AND_PRINT_I(160MHZ),
 				 channel->max_power,
 				 ((ch_flags & NVM_CHANNEL_IBSS) &&
 				  !(ch_flags & NVM_CHANNEL_RADAR))
@@ -370,6 +376,10 @@
 		       max_ampdu_exponent <<
 		       IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
 
+	if (data->vht160_supported)
+		vht_cap->cap |=
+			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
+
 	if (cfg->vht_mu_mimo_supported)
 		vht_cap->cap |= IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE;