Il 26/04/24 19:22, Alexandre Mergnat ha scritto:
Add ADDA Device Audio Interface support for MT8365 SoC.
Signed-off-by: Alexandre Mergnat amergnat@baylibre.com
sound/soc/mediatek/mt8365/mt8365-dai-adda.c | 315 ++++++++++++++++++++++++++++ 1 file changed, 315 insertions(+)
diff --git a/sound/soc/mediatek/mt8365/mt8365-dai-adda.c b/sound/soc/mediatek/mt8365/mt8365-dai-adda.c new file mode 100644 index 000000000000..65d45010ac90 --- /dev/null +++ b/sound/soc/mediatek/mt8365/mt8365-dai-adda.c @@ -0,0 +1,315 @@ +// SPDX-License-Identifier: GPL-2.0 +/*
- Mediatek 8365 ALSA SoC Audio DAI ADDA Control
- Copyright (c) 2024 MediaTek Inc.
- Authors: Jia Zeng jia.zeng@mediatek.com
Alexandre Mergnat <amergnat@baylibre.com>- */
+#include <linux/bitops.h> +#include <linux/regmap.h> +#include <sound/pcm_params.h> +#include "mt8365-afe-clk.h" +#include "mt8365-afe-common.h" +#include "../common/mtk-dai-adda-common.h"
+static int adda_afe_on_ref_cnt;
+/* DAI Drivers */
+static int mt8365_dai_set_adda_out(struct mtk_base_afe *afe, unsigned int rate) +{
- unsigned int val;
if (rate == 8000 || rate == 16000) val = AFE_ADDA_DL_VOICE_DATA; else val = 0;
- switch (rate) {
- case 8000:
val = AFE_ADDA_DL_VOICE_DATA;break;- case 16000:
val = AFE_ADDA_DL_VOICE_DATA;break;- default:
val = 0;- }
- val |= FIELD_PREP(AFE_ADDA_DL_SAMPLING_RATE,
mtk_adda_dl_rate_transform(afe, rate));- val |= AFE_ADDA_DL_8X_UPSAMPLE |
AFE_ADDA_DL_MUTE_OFF_CH1 |AFE_ADDA_DL_MUTE_OFF_CH2 |AFE_ADDA_DL_DEGRADE_GAIN;- regmap_update_bits(afe->regmap, AFE_ADDA_PREDIS_CON0, 0xffffffff, 0);
- regmap_update_bits(afe->regmap, AFE_ADDA_PREDIS_CON1, 0xffffffff, 0);
- regmap_update_bits(afe->regmap, AFE_ADDA_DL_SRC2_CON0, 0xffffffff, val);
- /* SA suggest apply -0.3db to audio/speech path */
- regmap_update_bits(afe->regmap, AFE_ADDA_DL_SRC2_CON1,
0xffffffff, 0xf74f0000);- /* SA suggest use default value for sdm */
- regmap_update_bits(afe->regmap, AFE_ADDA_DL_SDM_DCCOMP_CON,
0xffffffff, 0x0700701e);- return 0;
+}
+static int mt8365_dai_set_adda_in(struct mtk_base_afe *afe, unsigned int rate) +{
- unsigned int val;
- val = FIELD_PREP(AFE_ADDA_UL_SAMPLING_RATE,
mtk_adda_ul_rate_transform(afe, rate));- regmap_update_bits(afe->regmap, AFE_ADDA_UL_SRC_CON0,
AFE_ADDA_UL_SAMPLING_RATE, val);- /* Using Internal ADC */
- regmap_update_bits(afe->regmap, AFE_ADDA_TOP_CON0, 0x1, 0x0);
- return 0;
+}
+int mt8365_dai_enable_adda_on(struct mtk_base_afe *afe) +{
- unsigned long flags;
- struct mt8365_afe_private *afe_priv = afe->platform_priv;
- spin_lock_irqsave(&afe_priv->afe_ctrl_lock, flags);
- adda_afe_on_ref_cnt++;
- if (adda_afe_on_ref_cnt == 1)
regmap_update_bits(afe->regmap, AFE_ADDA_UL_DL_CON0,AFE_ADDA_UL_DL_ADDA_AFE_ON,AFE_ADDA_UL_DL_ADDA_AFE_ON);- spin_unlock_irqrestore(&afe_priv->afe_ctrl_lock, flags);
- return 0;
+}
+int mt8365_dai_disable_adda_on(struct mtk_base_afe *afe) +{
- unsigned long flags;
- struct mt8365_afe_private *afe_priv = afe->platform_priv;
- spin_lock_irqsave(&afe_priv->afe_ctrl_lock, flags);
- adda_afe_on_ref_cnt--;
- if (adda_afe_on_ref_cnt == 0)
regmap_update_bits(afe->regmap, AFE_ADDA_UL_DL_CON0,AFE_ADDA_UL_DL_ADDA_AFE_ON,~AFE_ADDA_UL_DL_ADDA_AFE_ON);- else if (adda_afe_on_ref_cnt < 0)
adda_afe_on_ref_cnt = 0;
Should we dev_warn() here? The refcount should never be less than zero - if it is, then there's some issue somewhere that must be solved.
- spin_unlock_irqrestore(&afe_priv->afe_ctrl_lock, flags);
- return 0;
+}
Cheers, Angelo