From: "David Lynch Jr." <ml@dlasys.net>
To: Christian Lamparter <chunkeey@googlemail.com>
Cc: linux-wireless@vger.kernel.org
Subject: CARL9170 driver/firmware questions
Date: Sat, 16 Jun 2012 22:53:47 -0400 [thread overview]
Message-ID: <1339901627.7998.15.camel@hp-dhlii> (raw)
In-Reply-To: <201204252201.50803.chunkeey@googlemail.com>
I am working on another AR9170 project.
This essentially requires injecting broadcast packets of specific size,
frequency, ... at extremely precise intervals.
I am trying to understand the data flow in the firmware.
Initially I was looking to generate the frames in the firmware.
The payload is simple. Though I am pondering the wisdom of that right
now. Regardless, I will have to control my frames in firmware, so I need
to separate them from normal traffic and then feed them into the Radio
Queues at the appropriate times.
Am I correct that the same struct dma_desc is being used by both USB and
the Radio ?
Each dma_desc points to a payload, for tx packets this is a struct
carl9170_tx_superframe, which must also be what the skb pointed to by
void carl9170_usb_tx(struct ar9170 *ar, struct sk_buff *skb) is
sending ?
Can I construct a carl9170_tx_superframe on the host side, with
something to allow me to identify it in handle_download in the firmware,
perform minor mangling of the contents, and repeatedly transmit it at
fixed intervals using wlan_tx() ?
next prev parent reply other threads:[~2012-06-17 2:53 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-25 19:29 AR9170 documentation for a driver port? Stephen P
2012-04-25 20:01 ` Christian Lamparter
2012-06-17 2:53 ` David Lynch Jr. [this message]
2012-06-17 10:42 ` CARL9170 driver/firmware questions Christian Lamparter
[not found] ` <201206172048.59657.chunkeey@googlemail.com>
[not found] ` <1341734893.20243.15.camel@hp-dhlii>
[not found] ` <201207081443.03106.chunkeey@googlemail.com>
2012-07-08 16:54 ` David Lynch Jr.
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