Commit fbdd90ea authored by Eyal Shapira's avatar Eyal Shapira Committed by Johannes Berg
Browse files

mac80211: enable easier manipulation of VHT beamforming caps 



Introduce shift and mask defines for beamformee STS cap and number
of sounding dimensions cap as these can take any 3 bit value.
While at it also cleanup an unrequired parenthesis.

Signed-off-by: default avatarEyal Shapira <eyal@wizery.com>
Reviewed-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 33787fc4

include/linux/ieee80211.h

+6 −2
Original line number Diff line number Diff line
@@ -1411,8 +1411,12 @@ struct ieee80211_vht_operation { 
#define IEEE80211_VHT_CAP_RXSTBC_MASK				0x00000700

#define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE			0x00000800

#define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE			0x00001000

#define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MAX			0x0000e000

#define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX		0x00070000

#define IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT                  13

#define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK			\

		(7 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT)

#define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT		16

#define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK		\

		(7 << IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT)

#define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE			0x00080000

#define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE			0x00100000

#define IEEE80211_VHT_CAP_VHT_TXOP_PS				0x00200000

net/mac80211/vht.c

+3 −4
Original line number Diff line number Diff line
@@ -182,16 +182,15 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, 
			 IEEE80211_VHT_CAP_SHORT_GI_160);



	/* remaining ones */

	if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE) {

	if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)

		vht_cap->cap |= cap_info &

				(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |

				 IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX);

	}

				 IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK);



	if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)

		vht_cap->cap |= cap_info &

				(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |

				 IEEE80211_VHT_CAP_BEAMFORMEE_STS_MAX);

				 IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK);



	if (own_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)

		vht_cap->cap |= cap_info &

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