From: Ben Greear <greearb@candelatech.com>
To: Okhwan Lee <ohlee@mwnl.snu.ac.kr>, ath10k@lists.infradead.org
Subject: Re: Change the number of active antennas (RF-chains)
Date: Thu, 11 Sep 2014 07:21:27 -0700 [thread overview]
Message-ID: <5411AFE7.8060008@candelatech.com> (raw)
In-Reply-To: <CANzpp-k2QdD6C9VJF7hPR2sKOQwhXxxA4qsJcihjKVrwgtXQng@mail.gmail.com>
On 09/11/2014 12:37 AM, Okhwan Lee wrote:
> Hi,
>
> I have been trying to configure the number of active antennas (not
> spatial stream) by using ath10k/QCA9880.
>
> When I use ath9k, we can easily change the number of active antenna by
> using REG_WRITE(ah, AR_PHY_RX_CHAINMASK, ah->rxchainmask) function
> used in ar9003_hw_set_chain_masks.
>
> However, in ath10k, we failed to handle the values (e.g, rx/tx chain
> mask of QCA9880) by using ath10k_wmi_pdev_set_param(ar,
> ar->wmi.pdev_param->rx_chain_mask, rx_ant) funcion in used in
> __ath10k_set_antenna.
Newer kernels should have this support, and it seemed to work in my
testing. I did not test power consumption.
What kernel version are you using?
Thanks,
Ben
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
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next prev parent reply other threads:[~2014-09-11 14:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-11 7:37 Change the number of active antennas (RF-chains) Okhwan Lee
2014-09-11 14:21 ` Ben Greear [this message]
2014-09-12 3:48 ` Okhwan Lee
2014-09-12 16:23 ` Ben Greear
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