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ASoC: SOF: ipc4: Add data struct for module notification message from firmware

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With the module notification message the information about the notification
is provided via the mailbox with the sof_ipc4_notify_module_data struct.

It contains the module and instance id of the sender of the notification,
the event_id and optionally additional data which is module and event
specific.

At the same time add definitions to identify ALSA kcontrol change
notification.
These notifications use standardized event_id, modules must follow this if
they support such notifications:
upper 16 bit: 0xA15A as a magic identification value
lower 16 bit: param_id of the changed control

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20231124150853.18648-3-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Peter Ujfalusi 2023-11-24 17:08:51 +02:00 committed by Mark Brown
parent 5980bda0a9
commit 1a307538c9
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1 changed files with 29 additions and 0 deletions
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29
include/sound/sof/ipc4/header.h
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@ -532,6 +532,35 @@ struct sof_ipc4_notify_resource_data {
#define SOF_IPC4_DEBUG_SLOT_TELEMETRY 0x4c455400
#define SOF_IPC4_DEBUG_SLOT_BROKEN 0x44414544
/**
* struct sof_ipc4_notify_module_data - payload for module notification
* @instance_id: instance ID of the originator module of the notification
* @module_id: module ID of the originator of the notification
* @event_id: module specific event id
* @event_data_size: Size of the @event_data (if any) in bytes
* @event_data: Optional notification data, module and notification dependent
*/
struct sof_ipc4_notify_module_data {
uint16_t instance_id;
uint16_t module_id;
uint32_t event_id;
uint32_t event_data_size;
uint8_t event_data[];
} __packed __aligned(4);
/*
* ALSA kcontrol change notification
*
* The event_id of struct sof_ipc4_notify_module_data is divided into two u16:
* upper u16: magic number for ALSA kcontrol types: 0xA15A
* lower u16: param_id of the control, which is the type of the control
* The event_data contains the struct sof_ipc4_control_msg_payload of the control
* which sent the notification.
*/
#define SOF_IPC4_NOTIFY_MODULE_EVENTID_ALSA_MAGIC_MASK GENMASK(31, 16)
#define SOF_IPC4_NOTIFY_MODULE_EVENTID_ALSA_MAGIC_VAL 0xA15A0000
#define SOF_IPC4_NOTIFY_MODULE_EVENTID_ALSA_PARAMID_MASK GENMASK(15, 0)
/** @}*/
#endif