Il 26/04/24 19:22, Alexandre Mergnat ha scritto:
Add Pulse Code Modulation Device Audio Interface support for MT8365 SoC.
Signed-off-by: Alexandre Mergnat <[email protected]>
---
sound/soc/mediatek/mt8365/mt8365-dai-pcm.c | 293 +++++++++++++++++++++++++++++
1 file changed, 293 insertions(+)
diff --git a/sound/soc/mediatek/mt8365/mt8365-dai-pcm.c
b/sound/soc/mediatek/mt8365/mt8365-dai-pcm.c
new file mode 100644
index 000000000000..a5de47c69620
--- /dev/null
+++ b/sound/soc/mediatek/mt8365/mt8365-dai-pcm.c
@@ -0,0 +1,293 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Mediatek 8365 ALSA SoC Audio DAI PCM Control
+ *
+ * Copyright (c) 2024 MediaTek Inc.
+ * Authors: Jia Zeng <[email protected]>
+ * Alexandre Mergnat <[email protected]>
+ */
+
+#include <linux/bitops.h>
+#include <linux/regmap.h>
+#include <sound/pcm_params.h>
+#include "mt8365-afe-clk.h"
+#include "mt8365-afe-common.h"
+
+struct mt8365_pcm_intf_data {
+ bool slave_mode;
+ bool lrck_inv;
+ bool bck_inv;
+ unsigned int format;
+};
+
+/* DAI Drivers */
+
+static void mt8365_dai_enable_pcm1(struct mtk_base_afe *afe)
+{
+ regmap_update_bits(afe->regmap, PCM_INTF_CON1,
+ PCM_INTF_CON1_EN, PCM_INTF_CON1_EN);
+}
+
+static void mt8365_dai_disable_pcm1(struct mtk_base_afe *afe)
+{
+ regmap_update_bits(afe->regmap, PCM_INTF_CON1,
+ PCM_INTF_CON1_EN, 0x0);
+}
+
+static int mt8365_dai_configure_pcm1(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+ struct mt8365_afe_private *afe_priv = afe->platform_priv;
+ struct mt8365_pcm_intf_data *pcm_priv =
afe_priv->dai_priv[MT8365_AFE_IO_PCM1];
+ bool slave_mode = pcm_priv->slave_mode;
+ bool lrck_inv = pcm_priv->lrck_inv;
+ bool bck_inv = pcm_priv->bck_inv;
+ unsigned int fmt = pcm_priv->format;
+ unsigned int bit_width = dai->sample_bits;
+ unsigned int val = 0;
+
+ if (!slave_mode) {
+ val |= PCM_INTF_CON1_MASTER_MODE |
+ PCM_INTF_CON1_BYPASS_ASRC;
+
+ if (lrck_inv)
+ val |= PCM_INTF_CON1_SYNC_OUT_INV;
+ if (bck_inv)
+ val |= PCM_INTF_CON1_BCLK_OUT_INV;
+ } else {
+ val |= PCM_INTF_CON1_SLAVE_MODE;
+
+ if (lrck_inv)
+ val |= PCM_INTF_CON1_SYNC_IN_INV;
+ if (bck_inv)
+ val |= PCM_INTF_CON1_BCLK_IN_INV;
+
+ // TODO: add asrc setting
/* TODO ... */
after which:
Reviewed-by: AngeloGioacchino Del Regno
<[email protected]>
