Am 25.08.2016 um 16:33 schrieb Benjamin Berg:
On Do, 2016-08-25 at 07:28 -0700, Ben Greear wrote:
On 08/25/2016 06:25 AM, Benjamin Berg wrote:
Unfortunately ath10k does not generally allow modifying the
coverage class
with the stock firmware and Qualcomm has so far refused to
implement this
feature so that it can be properly supported in ath10k. If we
however know
the registers that need to be modified for proper operation with a
higher
coverage class, then we can do these modifications from the driver.
This patch implements this hack for first generation cards which
are based
on a core that is similar to ath9k. The registers are modified in
place and
need to be re-written every time the firmware sets them. To achieve
this
the register status is verified after certain WMI events from the
firmware.
The coverage class may not be modified temporarily right after the
card
re-initializes the registers. This is for example the case during
scanning.
Thanks to Sebastian Gottschall <[email protected]> for
initially
working on a userspace support for this. This patch wouldn't have
been
possible without this documentation.
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c
b/drivers/net/wireless/ath/ath10k/wmi.c
index d246288..8ccc8cf 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -4879,6 +4879,12 @@ exit:
return 0;
}
+static inline void ath10k_wmi_queue_set_coverage_class_work(struct
ath10k *ar)
+{
+ if (ar->hw_params.hw_ops->set_coverage_class)
+ queue_work(ar->workqueue, &ar-
set_coverage_class_work);
+}
Maybe this should first check to see if the user has specified a
coverage class
before it attempts to do any work at all?
That way, if user does not set anything, then the behaviour does not
change
in any significant way?
Hm, yes, adding a check there looks simple and I don't see any reason
why it wouldn't work.
consider that i already implemented this in my version of the patch i
supplied to you. however. mine doesnt use queue handling but just checks
if the hw is ready before setting anything
Benjamin
--
Mit freundlichen Grüssen / Regards
Sebastian Gottschall / CTO
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