Add support for DSP volume controls

Merge series from Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>:

Some devices like DMIC don't expose native controls or need volume limit
due to possible HW damage. Add support for volume controls allowing to
change volume level in DSP. Maximum volume level is imposed by the
topology file which defines given path.

1 files changed, 29 insertions, 0 deletions

diff --git a/sound/soc/intel/avs/messages.c b/sound/soc/intel/avs/messages.c
index e11ae4246416..f887ab5b0311 100644
--- a/sound/soc/intel/avs/messages.c
+++ b/sound/soc/intel/avs/messages.c
@@ -702,6 +702,35 @@ int avs_ipc_copier_set_sink_format(struct avs_dev *adev, u16 module_id,
 					(u8 *)&cpr_fmt, sizeof(cpr_fmt));
 }
 
+int avs_ipc_peakvol_set_volume(struct avs_dev *adev, u16 module_id, u8 instance_id,
+			       struct avs_volume_cfg *vol)
+{
+	return avs_ipc_set_large_config(adev, module_id, instance_id, AVS_PEAKVOL_VOLUME, (u8 *)vol,
+					sizeof(*vol));
+}
+
+int avs_ipc_peakvol_get_volume(struct avs_dev *adev, u16 module_id, u8 instance_id,
+			       struct avs_volume_cfg **vols, size_t *num_vols)
+{
+	size_t payload_size;
+	u8 *payload;
+	int ret;
+
+	ret = avs_ipc_get_large_config(adev, module_id, instance_id, AVS_PEAKVOL_VOLUME, NULL, 0,
+				       &payload, &payload_size);
+	if (ret)
+		return ret;
+
+	/* Non-zero payload expected for PEAKVOL_VOLUME. */
+	if (!payload_size)
+		return -EREMOTEIO;
+
+	*vols = (struct avs_volume_cfg *)payload;
+	*num_vols = payload_size / sizeof(**vols);
+
+	return 0;
+}
+
 #ifdef CONFIG_DEBUG_FS
 int avs_ipc_set_enable_logs(struct avs_dev *adev, u8 *log_info, size_t size)
 {