40f1560215a88bc94a6e37286
parent 84caf8005b09e0a4a57fce44119489d1b0bbbe94
author Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> 1346249427 +0530
committer Kalle Valo <kvalo@qca.qualcomm.com> 1351068588 +0300

ath6kl: Add support to detect fw error through heart beat

This patch adds support to detect fw error condition by sending
periodic message (heart beat challenge) to firmware. Upon reception
of the message, fw would send a response event to driver. When
there are no reponses from fw for about 5 cmd driver would
trigger the recovery logic assuming that fw has gone into an
error state.

Capable fw will advertise this capability through
ATH6KL_FW_CAPABILITY_HEART_BEAT_POLL bit. This feature
is disabled by default, can be enabled through a modparam
(heart_beat_poll). This modparam also confiures the polling
interval in msecs.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
)QT8—)x