Il 17/02/22 14:41, Jiaxin Yu ha scritto:
This path adds mt8186 hw gain dai driver.
Signed-off-by: Jiaxin Yu <jiaxin.yu@xxxxxxxxxxxx>
---
.../soc/mediatek/mt8186/mt8186-dai-hw-gain.c | 245 ++++++++++++++++++
1 file changed, 245 insertions(+)
create mode 100644 sound/soc/mediatek/mt8186/mt8186-dai-hw-gain.c
diff --git a/sound/soc/mediatek/mt8186/mt8186-dai-hw-gain.c b/sound/soc/mediatek/mt8186/mt8186-dai-hw-gain.c
new file mode 100644
index 000000000000..796878989727
--- /dev/null
+++ b/sound/soc/mediatek/mt8186/mt8186-dai-hw-gain.c
@@ -0,0 +1,245 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// MediaTek ALSA SoC Audio DAI HW Gain Control
+//
+// Copyright (c) 2022 MediaTek Inc.
+// Author: Jiaxin Yu <jiaxin.yu@xxxxxxxxxxxx>
+
+#include <linux/regmap.h>
+#include "mt8186-afe-common.h"
+#include "mt8186-interconnection.h"
+
+#define HW_GAIN_1_EN_W_NAME "HW GAIN 1 Enable"
+#define HW_GAIN_2_EN_W_NAME "HW GAIN 2 Enable"
+
+/* dai component */
+static const struct snd_kcontrol_new mtk_hw_gain1_in_ch1_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("CONNSYS_I2S_CH1 Switch", AFE_CONN13_1,
+ I_CONNSYS_I2S_CH1, 1, 0),
+};
+
+static const struct snd_kcontrol_new mtk_hw_gain1_in_ch2_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("CONNSYS_I2S_CH2 Switch", AFE_CONN14_1,
+ I_CONNSYS_I2S_CH2, 1, 0),
+};
+
+static const struct snd_kcontrol_new mtk_hw_gain2_in_ch1_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1 Switch", AFE_CONN15,
+ I_ADDA_UL_CH1, 1, 0),
+};
+
+static const struct snd_kcontrol_new mtk_hw_gain2_in_ch2_mix[] = {
+ SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2 Switch", AFE_CONN16,
+ I_ADDA_UL_CH2, 1, 0),
+};
+
+static int mtk_hw_gain_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol,
+ int event)
+{
+ struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
+ struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
+ unsigned int gain_cur;
+ unsigned int gain_con1;
+
+ dev_dbg(cmpnt->dev, "%s(), name %s, event 0x%x\n",
+ __func__, w->name, event);
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ if (strcmp(w->name, HW_GAIN_1_EN_W_NAME) == 0) {
+ gain_cur = AFE_GAIN1_CUR;
+ gain_con1 = AFE_GAIN1_CON1;
+ } else {
+ gain_cur = AFE_GAIN2_CUR;
+ gain_con1 = AFE_GAIN2_CON1;
+ }
+
+ /* let hw gain ramp up, set cur gain to 0 */
+ regmap_update_bits(afe->regmap,
+ gain_cur,
+ AFE_GAIN1_CUR_MASK_SFT,
+ 0);
This fits in one line (86 columns is ok)
+
+ /* set target gain to 0 */
+ regmap_update_bits(afe->regmap,
+ gain_con1,
+ GAIN1_TARGET_MASK_SFT,
+ 0);
Same here.
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget mtk_dai_hw_gain_widgets[] = {
+ /* inter-connections */
+ SND_SOC_DAPM_MIXER("HW_GAIN1_IN_CH1", SND_SOC_NOPM, 0, 0,
+ mtk_hw_gain1_in_ch1_mix,
+ ARRAY_SIZE(mtk_hw_gain1_in_ch1_mix)),
+ SND_SOC_DAPM_MIXER("HW_GAIN1_IN_CH2", SND_SOC_NOPM, 0, 0,
+ mtk_hw_gain1_in_ch2_mix,
+ ARRAY_SIZE(mtk_hw_gain1_in_ch2_mix)),
+ SND_SOC_DAPM_MIXER("HW_GAIN2_IN_CH1", SND_SOC_NOPM, 0, 0,
+ mtk_hw_gain2_in_ch1_mix,
+ ARRAY_SIZE(mtk_hw_gain2_in_ch1_mix)),
+ SND_SOC_DAPM_MIXER("HW_GAIN2_IN_CH2", SND_SOC_NOPM, 0, 0,
+ mtk_hw_gain2_in_ch2_mix,
+ ARRAY_SIZE(mtk_hw_gain2_in_ch2_mix)),
+
+ SND_SOC_DAPM_SUPPLY(HW_GAIN_1_EN_W_NAME,
+ AFE_GAIN1_CON0, GAIN1_ON_SFT, 0,
+ mtk_hw_gain_event,
+ SND_SOC_DAPM_PRE_PMU),
+
+ SND_SOC_DAPM_SUPPLY(HW_GAIN_2_EN_W_NAME,
+ AFE_GAIN2_CON0, GAIN2_ON_SFT, 0,
+ mtk_hw_gain_event,
+ SND_SOC_DAPM_PRE_PMU),
+
+ SND_SOC_DAPM_INPUT("HW Gain 1 Out Endpoint"),
+ SND_SOC_DAPM_INPUT("HW Gain 2 Out Endpoint"),
+ SND_SOC_DAPM_OUTPUT("HW Gain 1 In Endpoint"),
+};
+
+static const struct snd_soc_dapm_route mtk_dai_hw_gain_routes[] = {
+ {"HW Gain 1 In", NULL, "HW_GAIN1_IN_CH1"},
+ {"HW Gain 1 In", NULL, "HW_GAIN1_IN_CH2"},
+ {"HW Gain 2 In", NULL, "HW_GAIN2_IN_CH1"},
+ {"HW Gain 2 In", NULL, "HW_GAIN2_IN_CH2"},
+
+ {"HW Gain 1 In", NULL, HW_GAIN_1_EN_W_NAME},
+ {"HW Gain 1 Out", NULL, HW_GAIN_1_EN_W_NAME},
+ {"HW Gain 2 In", NULL, HW_GAIN_2_EN_W_NAME},
+ {"HW Gain 2 Out", NULL, HW_GAIN_2_EN_W_NAME},
+
+ {"HW Gain 1 In Endpoint", NULL, "HW Gain 1 In"},
+ {"HW Gain 1 Out", NULL, "HW Gain 1 Out Endpoint"},
+ {"HW Gain 2 Out", NULL, "HW Gain 2 Out Endpoint"},
+};
+
+static const struct snd_kcontrol_new mtk_hw_gain_controls[] = {
+ SOC_SINGLE("HW Gain 1 Volume", AFE_GAIN1_CON1,
+ GAIN1_TARGET_SFT, GAIN1_TARGET_MASK, 0),
+ SOC_SINGLE("HW Gain 2 Volume", AFE_GAIN2_CON1,
+ GAIN2_TARGET_SFT, GAIN2_TARGET_MASK, 0),
+};
+
+/* dai ops */
+static int mtk_dai_gain_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
+ unsigned int rate = params_rate(params);
+ unsigned int rate_reg = mt8186_rate_transform(afe->dev, rate, dai->id);
+
+ dev_info(afe->dev, "%s(), id %d, stream %d, rate %d\n",
+ __func__,
+ dai->id,
+ substream->stream,
+ rate);
This should be:
dev_info(afe->dev, "%s(), id %d, stream %d, rate %d\n",
__func__, dai->id, substream->stream, rate);
