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ASoC: SOF: topology: add helper for setting up IPC component

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Add helper to allocate buffer for IPC component, configure the basic
settings, and set up the extended data for the subsequent IPC sending.

Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200904132744.1699575-7-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Keyon Jie 2020-09-04 16:27:34 +03:00 committed by Mark Brown
parent 50b55fd463
commit a905bb0193
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 45 additions and 0 deletions
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45
sound/soc/sof/topology.c
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@ -1453,6 +1453,51 @@ static int sof_connect_dai_widget(struct snd_soc_component *scomp,
return 0;
}
/**
* sof_comp_alloc - allocate and initialize buffer for a new component
* @swidget: pointer to struct snd_sof_widget containing extended data
* @ipc_size: IPC payload size that will be updated depending on valid
* extended data.
* @index: ID of the pipeline the component belongs to
* @core: index of the DSP core that the component should run on
*
* Return: The pointer to the new allocated component, NULL if failed.
*/
static struct sof_ipc_comp *sof_comp_alloc(struct snd_sof_widget *swidget,
size_t *ipc_size, int index,
int core)
{
u8 nil_uuid[SOF_UUID_SIZE] = {0};
struct sof_ipc_comp *comp;
size_t total_size = *ipc_size;
/* only non-zero UUID is valid */
if (memcmp(&swidget->comp_ext, nil_uuid, SOF_UUID_SIZE))
total_size += sizeof(swidget->comp_ext);
comp = kzalloc(total_size, GFP_KERNEL);
if (!comp)
return NULL;
/* configure comp new IPC message */
comp->hdr.size = total_size;
comp->hdr.cmd = SOF_IPC_GLB_TPLG_MSG | SOF_IPC_TPLG_COMP_NEW;
comp->id = swidget->comp_id;
comp->pipeline_id = index;
comp->core = core;
/* handle the extended data if needed */
if (total_size > *ipc_size) {
/* append extended data to the end of the component */
memcpy((u8 *)comp + *ipc_size, &swidget->comp_ext, sizeof(swidget->comp_ext));
comp->ext_data_length = sizeof(swidget->comp_ext);
}
/* update ipc_size and return */
*ipc_size = total_size;
return comp;
}
static int sof_widget_load_dai(struct snd_soc_component *scomp, int index,
struct snd_sof_widget *swidget, int core,
struct snd_soc_tplg_dapm_widget *tw,