262 lines
6.8 KiB
C
262 lines
6.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// MediaTek ALSA SoC Audio DAI I2S Control
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//
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// Copyright (c) 2018 MediaTek Inc.
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// Author: Michael Hsiao <michael.hsiao@mediatek.com>
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#include <linux/regmap.h>
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#include <sound/pcm_params.h>
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#include "mt6768-afe-common.h"
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#include "mt6768-interconnection.h"
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enum AUD_TX_LCH_RPT {
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AUD_TX_LCH_RPT_NO_REPEAT = 0,
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AUD_TX_LCH_RPT_REPEAT = 1
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};
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enum AUD_VBT_16K_MODE {
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AUD_VBT_16K_MODE_DISABLE = 0,
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AUD_VBT_16K_MODE_ENABLE = 1
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};
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enum AUD_EXT_MODEM {
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AUD_EXT_MODEM_SELECT_INTERNAL = 0,
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AUD_EXT_MODEM_SELECT_EXTERNAL = 1
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};
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enum AUD_PCM_SYNC_TYPE {
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/* bck sync length = 1 */
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AUD_PCM_ONE_BCK_CYCLE_SYNC = 0,
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/* bck sync length = PCM_INTF_CON1[9:13] */
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AUD_PCM_EXTENDED_BCK_CYCLE_SYNC = 1
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};
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enum AUD_BT_MODE {
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AUD_BT_MODE_DUAL_MIC_ON_TX = 0,
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AUD_BT_MODE_SINGLE_MIC_ON_TX = 1
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};
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enum AUD_PCM_AFIFO_SRC {
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/* slave mode & external modem uses different crystal */
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AUD_PCM_AFIFO_ASRC = 0,
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/* slave mode & external modem uses the same crystal */
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AUD_PCM_AFIFO_AFIFO = 1
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};
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enum AUD_PCM_CLOCK_SOURCE {
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AUD_PCM_CLOCK_MASTER_MODE = 0,
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AUD_PCM_CLOCK_SLAVE_MODE = 1
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};
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enum AUD_PCM_WLEN {
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AUD_PCM_WLEN_PCM_32_BCK_CYCLES = 0,
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AUD_PCM_WLEN_PCM_64_BCK_CYCLES = 1
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};
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enum AUD_PCM_MODE {
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AUD_PCM_MODE_PCM_MODE_8K = 0,
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AUD_PCM_MODE_PCM_MODE_16K = 1,
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AUD_PCM_MODE_PCM_MODE_32K = 2,
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AUD_PCM_MODE_PCM_MODE_48K = 3,
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};
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enum AUD_PCM_FMT {
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AUD_PCM_FMT_I2S = 0,
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AUD_PCM_FMT_EIAJ = 1,
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AUD_PCM_FMT_PCM_MODE_A = 2,
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AUD_PCM_FMT_PCM_MODE_B = 3
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};
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enum AUD_BCLK_OUT_INV {
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AUD_BCLK_OUT_INV_NO_INVERSE = 0,
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AUD_BCLK_OUT_INV_INVERSE = 1
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};
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enum AUD_PCM_EN {
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AUD_PCM_EN_DISABLE = 0,
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AUD_PCM_EN_ENABLE = 1
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};
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/* dai component */
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static const struct snd_kcontrol_new mtk_pcm_2_playback_ch1_mix[] = {
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SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN17,
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I_ADDA_UL_CH1, 1, 0),
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SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN17,
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I_DL2_CH1, 1, 0),
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};
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static const struct snd_kcontrol_new mtk_pcm_2_playback_ch2_mix[] = {
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SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN18,
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I_ADDA_UL_CH2, 1, 0),
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SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH2", AFE_CONN18,
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I_DL2_CH2, 1, 0),
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};
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static const struct snd_kcontrol_new mtk_pcm_2_playback_ch4_mix[] = {
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SOC_DAPM_SINGLE_AUTODISABLE("I2S0_CH1", AFE_CONN24,
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I_I2S0_CH1, 1, 0),
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SOC_DAPM_SINGLE_AUTODISABLE("I2S0_CH2", AFE_CONN24,
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I_I2S0_CH2, 1, 0),
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SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH1", AFE_CONN24,
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I_DL1_CH1, 1, 0),
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SOC_DAPM_SINGLE_AUTODISABLE("I2S2_CH1", AFE_CONN24,
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I_I2S2_CH1, 1, 0),
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SOC_DAPM_SINGLE_AUTODISABLE("I2S2_CH2", AFE_CONN24,
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I_I2S2_CH2, 1, 0),
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};
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static int mtk_pcm_en_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol,
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int event)
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{
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struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
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struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
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dev_info(afe->dev, "%s(), name %s, event 0x%x\n",
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__func__, w->name, event);
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return 0;
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}
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static const struct snd_soc_dapm_widget mtk_dai_pcm_widgets[] = {
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/* inter-connections */
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SND_SOC_DAPM_MIXER("PCM_2_PB_CH1", SND_SOC_NOPM, 0, 0,
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mtk_pcm_2_playback_ch1_mix,
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ARRAY_SIZE(mtk_pcm_2_playback_ch1_mix)),
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SND_SOC_DAPM_MIXER("PCM_2_PB_CH2", SND_SOC_NOPM, 0, 0,
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mtk_pcm_2_playback_ch2_mix,
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ARRAY_SIZE(mtk_pcm_2_playback_ch2_mix)),
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SND_SOC_DAPM_MIXER("PCM_2_PB_CH4", SND_SOC_NOPM, 0, 0,
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mtk_pcm_2_playback_ch4_mix,
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ARRAY_SIZE(mtk_pcm_2_playback_ch4_mix)),
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SND_SOC_DAPM_SUPPLY("PCM_2_EN",
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PCM2_INTF_CON, PCM_EN_SFT, 0,
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mtk_pcm_en_event,
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SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
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SND_SOC_DAPM_INPUT("MD1_TO_AFE"),
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SND_SOC_DAPM_OUTPUT("AFE_TO_MD1"),
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};
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static const struct snd_soc_dapm_route mtk_dai_pcm_routes[] = {
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{"PCM 2 Playback", NULL, "PCM_2_PB_CH1"},
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{"PCM 2 Playback", NULL, "PCM_2_PB_CH2"},
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{"PCM 2 Playback", NULL, "PCM_2_PB_CH4"},
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{"PCM 2 Playback", NULL, "PCM_2_EN"},
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{"PCM 2 Capture", NULL, "PCM_2_EN"},
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{"AFE_TO_MD1", NULL, "PCM 2 Playback"},
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{"PCM 2 Capture", NULL, "MD1_TO_AFE"},
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{"PCM_2_PB_CH1", "DL2_CH1", "DL2"},
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{"PCM_2_PB_CH2", "DL2_CH2", "DL2"},
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{"PCM_2_PB_CH4", "DL1_CH1", "DL1"},
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};
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/* dai ops */
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static int mtk_dai_pcm_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
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unsigned int rate = params_rate(params);
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unsigned int rate_reg = mt6768_rate_transform(afe->dev, rate, dai->id);
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unsigned int pcm_con = 0;
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dev_info(afe->dev, "%s(), id %d, stream %d, rate %d, rate_reg %d, widget active p %d, c %d\n",
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__func__,
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dai->id,
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substream->stream,
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rate,
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rate_reg,
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dai->playback_widget->active,
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dai->capture_widget->active);
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if (dai->playback_widget->active || dai->capture_widget->active)
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return 0;
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switch (dai->id) {
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case MT6768_DAI_PCM_2:
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pcm_con |= AUD_TX_LCH_RPT_NO_REPEAT << TX_LCH_RPT_SFT;
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pcm_con |= AUD_VBT_16K_MODE_DISABLE << VBT_16K_MODE_SFT;
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pcm_con |= AUD_BT_MODE_DUAL_MIC_ON_TX << BT_MODE_SFT;
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pcm_con |= AUD_PCM_AFIFO_AFIFO << PCM_AFIFO_SFT;
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pcm_con |= AUD_PCM_WLEN_PCM_32_BCK_CYCLES << PCM_WLEN_SFT;
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pcm_con |= rate_reg << PCM_MODE_SFT;
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pcm_con |= AUD_PCM_FMT_PCM_MODE_B << PCM_FMT_SFT;
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regmap_update_bits(afe->regmap, PCM2_INTF_CON,
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0xfffffffe, pcm_con);
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break;
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default:
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dev_warn(afe->dev, "%s(), id %d not support\n",
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__func__, dai->id);
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return -EINVAL;
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}
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return 0;
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}
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static const struct snd_soc_dai_ops mtk_dai_pcm_ops = {
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.hw_params = mtk_dai_pcm_hw_params,
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};
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/* dai driver */
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#define MTK_PCM_RATES (SNDRV_PCM_RATE_8000 |\
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SNDRV_PCM_RATE_16000 |\
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SNDRV_PCM_RATE_32000 |\
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SNDRV_PCM_RATE_48000)
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#define MTK_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
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SNDRV_PCM_FMTBIT_S24_LE |\
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SNDRV_PCM_FMTBIT_S32_LE)
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static struct snd_soc_dai_driver mtk_dai_pcm_driver[] = {
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{
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.name = "PCM 2",
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.id = MT6768_DAI_PCM_2,
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.playback = {
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.stream_name = "PCM 2 Playback",
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.channels_min = 1,
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.channels_max = 2,
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.rates = MTK_PCM_RATES,
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.formats = MTK_PCM_FORMATS,
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},
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.capture = {
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.stream_name = "PCM 2 Capture",
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.channels_min = 1,
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.channels_max = 2,
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.rates = MTK_PCM_RATES,
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.formats = MTK_PCM_FORMATS,
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},
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.ops = &mtk_dai_pcm_ops,
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.symmetric_rates = 1,
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.symmetric_samplebits = 1,
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},
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};
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int mt6768_dai_pcm_register(struct mtk_base_afe *afe)
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{
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struct mtk_base_afe_dai *dai = NULL;
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dev_info(afe->dev, "%s()\n", __func__);
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dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);
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if (!dai)
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return -ENOMEM;
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list_add(&dai->list, &afe->sub_dais);
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dai->dai_drivers = mtk_dai_pcm_driver;
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dai->num_dai_drivers = ARRAY_SIZE(mtk_dai_pcm_driver);
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dai->dapm_widgets = mtk_dai_pcm_widgets;
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dai->num_dapm_widgets = ARRAY_SIZE(mtk_dai_pcm_widgets);
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dai->dapm_routes = mtk_dai_pcm_routes;
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dai->num_dapm_routes = ARRAY_SIZE(mtk_dai_pcm_routes);
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return 0;
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}
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