Android employs a Wifi-HAL layer in its wireless frame. It basically abstracts dealing with netlink messages from the framework. For some features it employs nl80211 vendor commands. The goal I set myself is to be able to have a generic nl80211 Wifi-HAL implementation. One of the features currently requiring the vendor commands is g-scan. We can only guess what the 'g' stands for ;-) This series converts the vendor command api into common nl80211 api.
This series adds basic support of g-scan (or GScan, or gscan, or something completely different; suggestions are welcome). A basic g-scan request consists of some common attributes and so-called buckets. Each bucket represents a re-occurring scan request with a given interval and a set of channels. The common attributes specify how much scans (m) should be stored and how many BSS-es (n) should be kept per scan before an event is sent. The other option is to specify a percentage at which an event is sent, where 100% equals (m * n). A special case of bucket is the exponential backoff bucket, which has an increasing interval. The series is applied on top of master branch of wireless-testing as it relied on patches pending in wireless-drivers-next. As such this series include two fixes against those pending patched. Hopefully using wireless-testing allows the nl80211 changes in this series to apply to mac80211-next. I consider it still in RFC state so it may not matter right now. Changes: V2 - remove pr_err() statement from nl80211.c - get rid of #if 0 code. - reordered patches resolving compilation issue. V3 - drop support for RTT info in scan results. - cleanup attribute definitions. - add driver implementation for brcmfmac. Arend van Spriel (11): nl80211: add reporting of gscan capabilities nl80211: rename some notification functions nl80211: add support for gscan nl80211: add driver api for gscan notifications brcmfmac: fix memory leak in brcmf_cfg80211_attach() brcmfmac: fix uninitialized field in scheduled scan ssid configuration brcmfmac: add firmware feature detection for gscan feature brcmfmac: report gscan capabilities if firmware supports it brcmfmac: implement gscan functionality brcmfmac: handle gscan events from firmware brcmfmac: allow gscan to run concurrent with scheduled scan .../broadcom/brcm80211/brcmfmac/cfg80211.c | 266 +++++++++++-- .../broadcom/brcm80211/brcmfmac/cfg80211.h | 12 +- .../wireless/broadcom/brcm80211/brcmfmac/core.c | 5 +- .../wireless/broadcom/brcm80211/brcmfmac/debug.h | 2 + .../wireless/broadcom/brcm80211/brcmfmac/feature.c | 22 +- .../wireless/broadcom/brcm80211/brcmfmac/feature.h | 4 +- .../wireless/broadcom/brcm80211/brcmfmac/fweh.h | 1 + .../broadcom/brcm80211/brcmfmac/fwil_types.h | 92 +++++ .../net/wireless/broadcom/brcm80211/brcmfmac/pno.c | 381 +++++++++++++++++- .../net/wireless/broadcom/brcm80211/brcmfmac/pno.h | 37 ++ include/net/cfg80211.h | 155 ++++++++ include/uapi/linux/nl80211.h | 207 ++++++++++ net/wireless/core.c | 33 ++ net/wireless/core.h | 6 + net/wireless/nl80211.c | 430 ++++++++++++++++++++- net/wireless/nl80211.h | 4 +- net/wireless/rdev-ops.h | 25 ++ net/wireless/scan.c | 90 ++++- net/wireless/trace.h | 19 + 19 files changed, 1726 insertions(+), 65 deletions(-) -- 1.9.1
