diff options
| author | Peter Ujfalusi <peter.ujfalusi@linux.intel.com> | 2025-03-07 14:28:14 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-03-08 19:06:41 +0300 |
| commit | 0978e8207b61ac6d51280e5d28ccfff75d653363 (patch) | |
| tree | 08b4a3006ad1ba93db3e2e8d81ec1ec3b87fcac3 /include | |
| parent | eea84a7f0cdb693c261a7cf84bd4b3d81479c9a6 (diff) | |
| download | linux-0978e8207b61ac6d51280e5d28ccfff75d653363.tar.xz | |
ASoC: SOF: Intel: hda-mlink: Add support for mic privacy in VS SHIM registers
New register has been introduced with PTL in the vendor specific SHIM
registers, outside of the IPs itself for microphone privacy status handling.
Via the PVCCS register the current microphone privacy status can be checked
and the interrupt generation on status change can be enabled/disabled.
The status change interrupt is routed to the owner of the interface
(DSP/host).
The PVCCS is provided for each sublink under the IP to make it possible to
control the interrupt generation per sublink.
On status change the MDSTSCHG bit needs to be cleared for all sublink of
the interface to be able to detect future changes in privacy.
The status bit (MDSTS) is volatile in all PVCCS register, it reflects the
current state of the GPIO signal.
Microphone privacy is a hardware feature (if enabled and configured that
way), the host has only passive, monitoring role.
The added functions are generic to be future proof if the mic privacy
support is extended beyond Soundwire and DMIC links.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://patch.msgid.link/20250307112816.1495-7-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sound/hda-mlink.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/sound/hda-mlink.h b/include/sound/hda-mlink.h index 6774f4b9e5fc..4327317be6af 100644 --- a/include/sound/hda-mlink.h +++ b/include/sound/hda-mlink.h @@ -62,6 +62,12 @@ struct mutex *hdac_bus_eml_get_mutex(struct hdac_bus *bus, bool alt, int elid); int hdac_bus_eml_enable_offload(struct hdac_bus *bus, bool alt, int elid, bool enable); +/* microphone privacy specific function supported by ACE3+ architecture */ +void hdac_bus_eml_set_mic_privacy_mask(struct hdac_bus *bus, bool alt, int elid, + unsigned long mask); +bool hdac_bus_eml_is_mic_privacy_changed(struct hdac_bus *bus, bool alt, int elid); +bool hdac_bus_eml_get_mic_privacy_state(struct hdac_bus *bus, bool alt, int elid); + #else static inline int @@ -185,4 +191,23 @@ hdac_bus_eml_enable_offload(struct hdac_bus *bus, bool alt, int elid, bool enabl { return 0; } + +static inline void +hdac_bus_eml_set_mic_privacy_mask(struct hdac_bus *bus, bool alt, int elid, + unsigned long mask) +{ +} + +static inline bool +hdac_bus_eml_is_mic_privacy_changed(struct hdac_bus *bus, bool alt, int elid) +{ + return false; +} + +static inline bool +hdac_bus_eml_get_mic_privacy_state(struct hdac_bus *bus, bool alt, int elid) +{ + return false; +} + #endif /* CONFIG_SND_SOC_SOF_HDA_MLINK */ |