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Diffstat (limited to 'sound/soc/uniphier/aio.h')
-rw-r--r--sound/soc/uniphier/aio.h20
1 files changed, 7 insertions, 13 deletions
diff --git a/sound/soc/uniphier/aio.h b/sound/soc/uniphier/aio.h
index 8cab4a553a97..aa89c2f6fa24 100644
--- a/sound/soc/uniphier/aio.h
+++ b/sound/soc/uniphier/aio.h
@@ -3,19 +3,6 @@
* Socionext UniPhier AIO ALSA driver.
*
* Copyright (c) 2016-2018 Socionext Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; version 2
- * of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SND_UNIPHIER_AIO_H__
@@ -143,6 +130,10 @@ enum IEC61937_PC {
#define AUD_PLLDIV_1_1 2
#define AUD_PLLDIV_2_3 3
+#define AUD_VOL_INIT 0x4000 /* +0dB */
+#define AUD_VOL_MAX 0xffff /* +6dB */
+#define AUD_VOL_FADE_TIME 20 /* 20ms */
+
#define AUD_RING_SIZE (128 * 1024)
#define AUD_MIN_FRAGMENT 4
@@ -244,6 +235,7 @@ struct uniphier_aio_sub {
/* For PCM audio */
struct snd_pcm_substream *substream;
struct snd_pcm_hw_params params;
+ int vol;
/* For compress audio */
struct snd_compr_stream *cstream;
@@ -336,6 +328,8 @@ int aio_port_set_clk(struct uniphier_aio_sub *sub);
int aio_port_set_param(struct uniphier_aio_sub *sub, int pass_through,
const struct snd_pcm_hw_params *params);
void aio_port_set_enable(struct uniphier_aio_sub *sub, int enable);
+int aio_port_get_volume(struct uniphier_aio_sub *sub);
+void aio_port_set_volume(struct uniphier_aio_sub *sub, int vol);
int aio_if_set_param(struct uniphier_aio_sub *sub, int pass_through);
int aio_oport_set_stream_type(struct uniphier_aio_sub *sub,
enum IEC61937_PC pc);