Ajay Nandakumar c8f7a26db7 platform: nvadsp: Reduce blocking time of logger ...

The logger currently blocks in open for finding SOH within the
circular buffer. This blocking is infinite. However, the SOH
is written in buffer for sure when adsp boots.

Hence, added a check to see if in the past if adsp has been
started and then search for SOH else return an error.

Also, the blocking takes place in the read path where the logger
waits in the position where it gets EOT and loops back. This is
not desirable due to recent changes in debugfs and hence now the
read path returns back with an ASCII value of BELL which will not
effect `cat` from writing anything on the console.

Bug 1997011

Change-Id: Ia6e990bcdc1af5c328c24f350af941126beda07a
Signed-off-by: Ajay Nandakumar <anandakumarm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1662918
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: Timo Alho <talho@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2023-06-20 15:13:15 +00:00

..

tegra

platform: nvadsp: Reduce blocking time of logger

2023-06-20 15:13:15 +00:00