Commit 84c2dca3 authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Mark Brown

ASoC: SOF: Add rx_data pointer to snd_sof_ipc_msg struct

The rx_data pointer can be used by IPC implementations to pass the received
message (or part of the message, like the header) from platform code to
generic, high level IPC code.

IPC4 is going to be the first user of this as its implementation on Intel
platforms detaches the header and payload and the rx cannot be handled in
a similar way as it is implemented for ipc3.

If the rx_data is dynamically allocated, it is up to the platform code to
free it up.
After the message reception handling (rx_msg ops) returned, the pointer via
the msg->rx_data should be considered as invalid.
Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: default avatarRander Wang <rander.wang@intel.com>
Reviewed-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: default avatarRanjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220505094818.10346-2-peter.ujfalusi@linux.intel.comSigned-off-by: default avatarMark Brown <broonie@kernel.org>
parent 6ff98a69
...@@ -350,6 +350,9 @@ struct snd_sof_ipc_msg { ...@@ -350,6 +350,9 @@ struct snd_sof_ipc_msg {
size_t reply_size; size_t reply_size;
int reply_error; int reply_error;
/* notification, firmware initiated messages */
void *rx_data;
wait_queue_head_t waitq; wait_queue_head_t waitq;
bool ipc_complete; bool ipc_complete;
}; };
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment