From: Libin Yang libin.yang@intel.com
Add byte type support for IPC4. The bytes controls are used to transfer configuration blobs to/from firmware via large_config messages.
Signed-off-by: Libin Yang libin.yang@intel.com Reviewed-by: Péter Ujfalusi peter.ujfalusi@linux.intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Signed-off-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com --- sound/soc/sof/ipc4-topology.c | 67 +++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+)
diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c index 0bb16ed38e48..7cc57e795f5a 100644 --- a/sound/soc/sof/ipc4-topology.c +++ b/sound/soc/sof/ipc4-topology.c @@ -1506,6 +1506,71 @@ static int sof_ipc4_control_load_volume(struct snd_sof_dev *sdev, struct snd_sof return 0; }
+static int sof_ipc4_control_load_bytes(struct snd_sof_dev *sdev, struct snd_sof_control *scontrol) +{ + struct sof_ipc4_control_data *control_data; + struct sof_ipc4_msg *msg; + int ret; + + if (scontrol->max_size < (sizeof(*control_data) + sizeof(struct sof_abi_hdr))) { + dev_err(sdev->dev, "insufficient size for a bytes control %s: %zu.\n", + scontrol->name, scontrol->max_size); + return -EINVAL; + } + + if (scontrol->priv_size > scontrol->max_size - sizeof(*control_data)) { + dev_err(sdev->dev, "scontrol %s bytes data size %zu exceeds max %zu.\n", + scontrol->name, scontrol->priv_size, + scontrol->max_size - sizeof(*control_data)); + return -EINVAL; + } + + scontrol->size = sizeof(struct sof_ipc4_control_data) + scontrol->priv_size; + + scontrol->ipc_control_data = kzalloc(scontrol->max_size, GFP_KERNEL); + if (!scontrol->ipc_control_data) + return -ENOMEM; + + control_data = scontrol->ipc_control_data; + control_data->index = scontrol->index; + if (scontrol->priv_size > 0) { + memcpy(control_data->data, scontrol->priv, scontrol->priv_size); + kfree(scontrol->priv); + scontrol->priv = NULL; + + if (control_data->data->magic != SOF_IPC4_ABI_MAGIC) { + dev_err(sdev->dev, "Wrong ABI magic (%#x) for control: %s\n", + control_data->data->magic, scontrol->name); + ret = -EINVAL; + goto err; + } + + /* TODO: check the ABI version */ + + if (control_data->data->size + sizeof(struct sof_abi_hdr) != + scontrol->priv_size) { + dev_err(sdev->dev, "Control %s conflict in bytes %zu vs. priv size %zu.\n", + scontrol->name, + control_data->data->size + sizeof(struct sof_abi_hdr), + scontrol->priv_size); + ret = -EINVAL; + goto err; + } + } + + msg = &control_data->msg; + msg->primary = SOF_IPC4_MSG_TYPE_SET(SOF_IPC4_MOD_LARGE_CONFIG_SET); + msg->primary |= SOF_IPC4_MSG_DIR(SOF_IPC4_MSG_REQUEST); + msg->primary |= SOF_IPC4_MSG_TARGET(SOF_IPC4_MODULE_MSG); + + return 0; + +err: + kfree(scontrol->ipc_control_data); + scontrol->ipc_control_data = NULL; + return ret; +} + static int sof_ipc4_control_setup(struct snd_sof_dev *sdev, struct snd_sof_control *scontrol) { switch (scontrol->info_type) { @@ -1513,6 +1578,8 @@ static int sof_ipc4_control_setup(struct snd_sof_dev *sdev, struct snd_sof_contr case SND_SOC_TPLG_CTL_VOLSW_SX: case SND_SOC_TPLG_CTL_VOLSW_XR_SX: return sof_ipc4_control_load_volume(sdev, scontrol); + case SND_SOC_TPLG_CTL_BYTES: + return sof_ipc4_control_load_bytes(sdev, scontrol); default: break; }