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ASoC: SOF: ipc4: Handle ALSA kcontrol change notification from firmware

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The control change notification is sent as module notification with a
standardized event_id (higher 16 bit is 0xA15A).
Add generic code to handle the module notification and invoke the control
update callback if the notification is an ALSA kcontrol change message.

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/20231124150853.18648-5-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Peter Ujfalusi 2023-11-24 17:08:53 +02:00 committed by Mark Brown
parent f5eb9945cf
commit 0ff23d4607
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 57 additions and 0 deletions
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57
sound/soc/sof/ipc4.c
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@ -78,6 +78,9 @@ static const struct sof_ipc4_fw_status {
{165, "Reserved (ADSP_IPC_PIPELINE_ALREADY_EXISTS removed)"},
};
typedef void (*ipc4_notification_handler)(struct snd_sof_dev *sdev,
struct sof_ipc4_msg *msg);
static int sof_ipc4_check_reply_status(struct snd_sof_dev *sdev, u32 status)
{
int i, ret;
@ -610,9 +613,55 @@ static int ipc4_fw_ready(struct snd_sof_dev *sdev, struct sof_ipc4_msg *ipc4_msg
return sof_ipc4_init_msg_memory(sdev);
}
static void sof_ipc4_module_notification_handler(struct snd_sof_dev *sdev,
struct sof_ipc4_msg *ipc4_msg)
{
struct sof_ipc4_notify_module_data *data = ipc4_msg->data_ptr;
/*
* If the notification includes additional, module specific data, then
* we need to re-allocate the buffer and re-read the whole payload,
* including the event_data
*/
if (data->event_data_size) {
void *new;
int ret;
ipc4_msg->data_size += data->event_data_size;
new = krealloc(ipc4_msg->data_ptr, ipc4_msg->data_size, GFP_KERNEL);
if (!new) {
ipc4_msg->data_size -= data->event_data_size;
return;
}
/* re-read the whole payload */
ipc4_msg->data_ptr = new;
ret = snd_sof_ipc_msg_data(sdev, NULL, ipc4_msg->data_ptr,
ipc4_msg->data_size);
if (ret < 0) {
dev_err(sdev->dev,
"Failed to read the full module notification: %d\n",
ret);
return;
}
data = ipc4_msg->data_ptr;
}
/* Handle ALSA kcontrol notification */
if ((data->event_id & SOF_IPC4_NOTIFY_MODULE_EVENTID_ALSA_MAGIC_MASK) ==
SOF_IPC4_NOTIFY_MODULE_EVENTID_ALSA_MAGIC_VAL) {
const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
if (tplg_ops->control->update)
tplg_ops->control->update(sdev, ipc4_msg);
}
}
static void sof_ipc4_rx_msg(struct snd_sof_dev *sdev)
{
struct sof_ipc4_msg *ipc4_msg = sdev->ipc->msg.rx_data;
ipc4_notification_handler handler_func = NULL;
size_t data_size = 0;
int err;
@ -648,6 +697,10 @@ static void sof_ipc4_rx_msg(struct snd_sof_dev *sdev)
case SOF_IPC4_NOTIFY_EXCEPTION_CAUGHT:
snd_sof_dsp_panic(sdev, 0, true);
break;
case SOF_IPC4_NOTIFY_MODULE_NOTIFICATION:
data_size = sizeof(struct sof_ipc4_notify_module_data);
handler_func = sof_ipc4_module_notification_handler;
break;
default:
dev_dbg(sdev->dev, "Unhandled DSP message: %#x|%#x\n",
ipc4_msg->primary, ipc4_msg->extension);
@ -663,6 +716,10 @@ static void sof_ipc4_rx_msg(struct snd_sof_dev *sdev)
snd_sof_ipc_msg_data(sdev, NULL, ipc4_msg->data_ptr, ipc4_msg->data_size);
}
/* Handle notifications with payload */
if (handler_func)
handler_func(sdev, ipc4_msg);
sof_ipc4_log_header(sdev->dev, "ipc rx done ", ipc4_msg, true);
if (data_size) {