| 07573b32494acbabd21979d8b9584c1ed3f7a6ad |
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28-Jan-2012 |
Irfan Sheriff <isheriff@google.com> |
Improve Wi-Fi hand-off
When Wi-fi connects at L2 layer, the beacons reach and the device
can maintain a connection to the access point, but the application
connectivity can be flaky (due to bigger packet size exchange).
We now use Watchdog to monitor the quality of the last hop on
Wi-Fi using signal strength and ARP connectivity as indicators
to decide if the link is good enough to switch to Wi-Fi as the uplink.
ARP pings are useful for link validation but can still get through
when the application traffic fails to go through and thus not best indicator
real packet loss since they are tiny packets (28 bytes) and have
much low chance of packet corruption than the regular data
packets.
Signal strength and ARP used together ends up working well in tests.
The goal is to switch to Wi-Fi after validating ARP transfer
and RSSI and then switching out of Wi-Fi when we hit a low
signal strength threshold and waiting until the signal strength
improves and validating ARP transfer.
Change-Id: Ica593291ec7772da892f03cf45b649635b730c47
/frameworks/base/wifi/java/android/net/wifi/SupplicantState.java
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| 1523da22e91217e06a01610c202d5e52c2e9dfce |
|
10-Jun-2011 |
Irfan Sheriff <isheriff@google.com> |
Fix driver start/stop handling
The driver start and stop events will be removed as they are now
redundant (and incorrect)
Move to using supplicant INTERFACE_DISABLED indication for deciding
if driver has started or stopped
When driver start is given, the supplicant will first switch to
INTERFACE_DISABLED state and then out of it to start connecting.
We should use this indication to find out driver has started
When driver stop is given, the supplicant will just switch to
INTERFACE_DISABLED state and this indicates driver has stopped
Bug: 4550125
Change-Id: I242cda97951a733c8707c8d99cdfcc9a33b75c2d
/frameworks/base/wifi/java/android/net/wifi/SupplicantState.java
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| 319da8c4c59be36fe2e221a0aba230ef6b77a14f |
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27-May-2011 |
Irfan Sheriff <isheriff@google.com> |
Add new states to support wpa_supplicant 0.8
Latest supplicant introduces the INTERFACE_DISABLED state. This
is entered when the interface is brought down (which is effectively
done by us and tracked already through the driver stop operation)
Also, added is a state for tracking authentication when supplicant acts as
the SME
Change-Id: I76090068d0ebba6df76f16707da559fcbd7512c5
/frameworks/base/wifi/java/android/net/wifi/SupplicantState.java
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| 9b3710b253db932d560f2f08d62b6eb2d37e3c67 |
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01-Mar-2011 |
Irfan Sheriff <isheriff@google.com> |
fix network disconnection handling
We should avoid network id set unless the access point is associating.
Also, we should reset network connection state before sending
out network change broadcast.
Finally, we should reset connect mode settings when we disconnect from
an access point
Bug: 3424635
Change-Id: I41db5399810218abd6a77155166db5a9b1dbd22c
/frameworks/base/wifi/java/android/net/wifi/SupplicantState.java
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| 9066cfe9886ac131c34d59ed0e2d287b0e3c0087 |
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04-Mar-2009 |
The Android Open Source Project <initial-contribution@android.com> |
auto import from //depot/cupcake/@135843
/frameworks/base/wifi/java/android/net/wifi/SupplicantState.java
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| d83a98f4ce9cfa908f5c54bbd70f03eec07e7553 |
|
04-Mar-2009 |
The Android Open Source Project <initial-contribution@android.com> |
auto import from //depot/cupcake/@135843
/frameworks/base/wifi/java/android/net/wifi/SupplicantState.java
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| 54b6cfa9a9e5b861a9930af873580d6dc20f773c |
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21-Oct-2008 |
The Android Open Source Project <initial-contribution@android.com> |
Initial Contribution
/frameworks/base/wifi/java/android/net/wifi/SupplicantState.java
|