From: "Daniel Glöckner" <daniel-gl@gmx.net>
To: Hans-Frieder Vogt <hfvogt@gmx.net>
Cc: linux-media@vger.kernel.org
Subject: Re: [PATCH 3/3] Firmware for AF9035/AF9033 driver
Date: Mon, 27 Feb 2012 01:33:21 +0100 [thread overview]
Message-ID: <20120227003321.GA25060@minime.bse> (raw)
In-Reply-To: <201202222322.02424.hfvogt@gmx.net>
On Wed, Feb 22, 2012 at 11:22:02PM +0100, Hans-Frieder Vogt wrote:
> 00000040: Firmware_CODELENGTH bytes
Some time ago I analyzed the firmware of the AF9035.
The firmware download command inside the on-chip ROM expects chunks
with a 7 byte header:
Byte 0: MCS 51 core
There are two inside the AF9035 (1=Link and 2=OFDM) with
separate address spaces
Byte 1-2: Big endian destination address
Byte 3-4: Big endian number of data bytes following the header
Byte 5-6: Big endian header checksum, apparently ignored by the chip
Calculated as ~(h[0]*256+h[1]+h[2]*256+h[3]+h[4]*256)
This might help locate the firmware inside the Windows drivers.
The Windows drivers often contain two copies of the same firmware.
Daniel
next prev parent reply other threads:[~2012-02-27 0:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-22 22:22 [PATCH 3/3] Firmware for AF9035/AF9033 driver Hans-Frieder Vogt
2012-02-23 9:20 ` Oliver Schinagl
2012-02-27 0:33 ` Daniel Glöckner [this message]
2012-02-27 22:35 ` Hans-Frieder Vogt
2012-03-20 0:32 ` Mauro Carvalho Chehab
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