From: Daniel Baluta daniel.baluta@nxp.com
With the new SND_SOC_SOF_DEBUG_IPC_MSG_INJECTOR it is going to be possible to inject arbitrary messages via the debugfs/sof/ipc_msg_inject file and get the reply from the same file as a binary.
The main use of this feature is to stress test the firmware's robustness against maliciously (or erroneous) crafted messages. We also receive firmware crash reports with only a binary of the sent message which caused the firmware crash.
Before adding the new debug feature we needed to make sure that the IPC reply handling is working correctly for cases when we don't know beforehand the size of the reply (since we don't know what kind of message we are sending).
Peter Ujfalusi (4): ASoC: SOF: utils: Add generic function to get the reply for a tx message ASoC: SOF: imx: Use the generic helper to get the reply ASoC: SOF: intel: Use the generic helper to get the reply ASoC: SOF: debug: Add support for IPC message injection
sound/soc/sof/Kconfig | 8 +++ sound/soc/sof/debug.c | 107 ++++++++++++++++++++++++++++++++++ sound/soc/sof/imx/imx8.c | 37 +----------- sound/soc/sof/imx/imx8m.c | 37 +----------- sound/soc/sof/intel/atom.c | 43 +------------- sound/soc/sof/intel/bdw.c | 43 +------------- sound/soc/sof/intel/hda-ipc.c | 29 +-------- sound/soc/sof/ipc.c | 61 +++++++++++++++++++ sound/soc/sof/sof-priv.h | 10 ++++ 9 files changed, 192 insertions(+), 183 deletions(-)