Hi!
Hopefully this address still works. If not, let's just commit Peter's comment.
Back in 2016, this commit introduced xlinx-dp.c:
commit 58ac482a66de09a7590f705e53fc6a3fb8a055e8
Author: Frederic Konrad <konrad.frede...@yahoo.fr>
Date: Tue Jun 14 15:59:15 2016 +0100
introduce xlnx-dp
This is the implementation of the DisplayPort.
It has an aux-bus to access dpcd and edid.
This commit has the following comment in it:
+static void xlnx_dp_audio_callback(void *opaque, int avail)
+{
+ /*
+ * Get some data from the DPDMA and compute these datas.
+ * Then wait for QEMU's audio subsystem to call this callback.
+ */
As it is, the commit is difficult to understand and has spelling
error in it (datas). Is the following interpretation by Peter
Maydell correct?
/*
* Get the individual left and right audio streams from
* the DPDMA, and fill the output buffer with the
* combined stereo audio data adjusted by the volume
* controls.
* QEMU's audio subsystem will call this callback
* repeatedly; we return it the data from the output
* buffer until it is emptied, and then we will read
* data from the DPDMA again.
*/
Thanks,
/mjt
