diff options
Diffstat (limited to 'sound/soc/mediatek/mt2701/mt2701-cs42448.c')
| -rw-r--r-- | sound/soc/mediatek/mt2701/mt2701-cs42448.c | 403 |
1 files changed, 403 insertions, 0 deletions
diff --git a/sound/soc/mediatek/mt2701/mt2701-cs42448.c b/sound/soc/mediatek/mt2701/mt2701-cs42448.c new file mode 100644 index 000000000..666282b86 --- /dev/null +++ b/sound/soc/mediatek/mt2701/mt2701-cs42448.c @@ -0,0 +1,403 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * mt2701-cs42448.c -- MT2701 CS42448 ALSA SoC machine driver + * + * Copyright (c) 2016 MediaTek Inc. + * Author: Ir Lian <ir.lian@mediatek.com> + * Garlic Tseng <garlic.tseng@mediatek.com> + */ + +#include <linux/module.h> +#include <sound/soc.h> +#include <linux/delay.h> +#include <linux/gpio.h> +#include <linux/pinctrl/consumer.h> +#include <linux/of_gpio.h> + +#include "mt2701-afe-common.h" + +struct mt2701_cs42448_private { + int i2s1_in_mux; + int i2s1_in_mux_gpio_sel_1; + int i2s1_in_mux_gpio_sel_2; +}; + +static const char * const i2sin_mux_switch_text[] = { + "ADC_SDOUT2", + "ADC_SDOUT3", + "I2S_IN_1", + "I2S_IN_2", +}; + +static const struct soc_enum i2sin_mux_enum = + SOC_ENUM_SINGLE_EXT(4, i2sin_mux_switch_text); + +static int mt2701_cs42448_i2sin1_mux_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct mt2701_cs42448_private *priv = snd_soc_card_get_drvdata(card); + + ucontrol->value.integer.value[0] = priv->i2s1_in_mux; + return 0; +} + +static int mt2701_cs42448_i2sin1_mux_set(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + struct mt2701_cs42448_private *priv = snd_soc_card_get_drvdata(card); + + if (ucontrol->value.integer.value[0] == priv->i2s1_in_mux) + return 0; + + switch (ucontrol->value.integer.value[0]) { + case 0: + gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 0); + gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 0); + break; + case 1: + gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 1); + gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 0); + break; + case 2: + gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 0); + gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 1); + break; + case 3: + gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 1); + gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 1); + break; + default: + dev_warn(card->dev, "%s invalid setting\n", __func__); + } + + priv->i2s1_in_mux = ucontrol->value.integer.value[0]; + return 0; +} + +static const struct snd_soc_dapm_widget + mt2701_cs42448_asoc_card_dapm_widgets[] = { + SND_SOC_DAPM_LINE("Line Out Jack", NULL), + SND_SOC_DAPM_MIC("AMIC", NULL), + SND_SOC_DAPM_LINE("Tuner In", NULL), + SND_SOC_DAPM_LINE("Satellite Tuner In", NULL), + SND_SOC_DAPM_LINE("AUX In", NULL), +}; + +static const struct snd_kcontrol_new mt2701_cs42448_controls[] = { + SOC_DAPM_PIN_SWITCH("Line Out Jack"), + SOC_DAPM_PIN_SWITCH("AMIC"), + SOC_DAPM_PIN_SWITCH("Tuner In"), + SOC_DAPM_PIN_SWITCH("Satellite Tuner In"), + SOC_DAPM_PIN_SWITCH("AUX In"), + SOC_ENUM_EXT("I2SIN1_MUX_Switch", i2sin_mux_enum, + mt2701_cs42448_i2sin1_mux_get, + mt2701_cs42448_i2sin1_mux_set), +}; + +static const unsigned int mt2701_cs42448_sampling_rates[] = {48000}; + +static const struct snd_pcm_hw_constraint_list mt2701_cs42448_constraints_rates = { + .count = ARRAY_SIZE(mt2701_cs42448_sampling_rates), + .list = mt2701_cs42448_sampling_rates, + .mask = 0, +}; + +static int mt2701_cs42448_fe_ops_startup(struct snd_pcm_substream *substream) +{ + int err; + + err = snd_pcm_hw_constraint_list(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &mt2701_cs42448_constraints_rates); + if (err < 0) { + dev_err(substream->pcm->card->dev, + "%s snd_pcm_hw_constraint_list failed: 0x%x\n", + __func__, err); + return err; + } + return 0; +} + +static const struct snd_soc_ops mt2701_cs42448_48k_fe_ops = { + .startup = mt2701_cs42448_fe_ops_startup, +}; + +static int mt2701_cs42448_be_ops_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + unsigned int mclk_rate; + unsigned int rate = params_rate(params); + unsigned int div_mclk_over_bck = rate > 192000 ? 2 : 4; + unsigned int div_bck_over_lrck = 64; + + mclk_rate = rate * div_bck_over_lrck * div_mclk_over_bck; + + /* mt2701 mclk */ + snd_soc_dai_set_sysclk(cpu_dai, 0, mclk_rate, SND_SOC_CLOCK_OUT); + + /* codec mclk */ + snd_soc_dai_set_sysclk(codec_dai, 0, mclk_rate, SND_SOC_CLOCK_IN); + + return 0; +} + +static struct snd_soc_ops mt2701_cs42448_be_ops = { + .hw_params = mt2701_cs42448_be_ops_hw_params +}; + +enum { + DAI_LINK_FE_MULTI_CH_OUT, + DAI_LINK_FE_PCM0_IN, + DAI_LINK_FE_PCM1_IN, + DAI_LINK_FE_BT_OUT, + DAI_LINK_FE_BT_IN, + DAI_LINK_BE_I2S0, + DAI_LINK_BE_I2S1, + DAI_LINK_BE_I2S2, + DAI_LINK_BE_I2S3, + DAI_LINK_BE_MRG_BT, +}; + +static struct snd_soc_dai_link mt2701_cs42448_dai_links[] = { + /* FE */ + [DAI_LINK_FE_MULTI_CH_OUT] = { + .name = "mt2701-cs42448-multi-ch-out", + .stream_name = "mt2701-cs42448-multi-ch-out", + .cpu_dai_name = "PCM_multi", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .trigger = {SND_SOC_DPCM_TRIGGER_POST, + SND_SOC_DPCM_TRIGGER_POST}, + .ops = &mt2701_cs42448_48k_fe_ops, + .dynamic = 1, + .dpcm_playback = 1, + }, + [DAI_LINK_FE_PCM0_IN] = { + .name = "mt2701-cs42448-pcm0", + .stream_name = "mt2701-cs42448-pcm0-data-UL", + .cpu_dai_name = "PCM0", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .trigger = {SND_SOC_DPCM_TRIGGER_POST, + SND_SOC_DPCM_TRIGGER_POST}, + .ops = &mt2701_cs42448_48k_fe_ops, + .dynamic = 1, + .dpcm_capture = 1, + }, + [DAI_LINK_FE_PCM1_IN] = { + .name = "mt2701-cs42448-pcm1-data-UL", + .stream_name = "mt2701-cs42448-pcm1-data-UL", + .cpu_dai_name = "PCM1", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .trigger = {SND_SOC_DPCM_TRIGGER_POST, + SND_SOC_DPCM_TRIGGER_POST}, + .ops = &mt2701_cs42448_48k_fe_ops, + .dynamic = 1, + .dpcm_capture = 1, + }, + [DAI_LINK_FE_BT_OUT] = { + .name = "mt2701-cs42448-pcm-BT-out", + .stream_name = "mt2701-cs42448-pcm-BT", + .cpu_dai_name = "PCM_BT_DL", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .trigger = {SND_SOC_DPCM_TRIGGER_POST, + SND_SOC_DPCM_TRIGGER_POST}, + .dynamic = 1, + .dpcm_playback = 1, + }, + [DAI_LINK_FE_BT_IN] = { + .name = "mt2701-cs42448-pcm-BT-in", + .stream_name = "mt2701-cs42448-pcm-BT", + .cpu_dai_name = "PCM_BT_UL", + .codec_name = "snd-soc-dummy", + .codec_dai_name = "snd-soc-dummy-dai", + .trigger = {SND_SOC_DPCM_TRIGGER_POST, + SND_SOC_DPCM_TRIGGER_POST}, + .dynamic = 1, + .dpcm_capture = 1, + }, + /* BE */ + [DAI_LINK_BE_I2S0] = { + .name = "mt2701-cs42448-I2S0", + .cpu_dai_name = "I2S0", + .no_pcm = 1, + .codec_dai_name = "cs42448", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS + | SND_SOC_DAIFMT_GATED, + .ops = &mt2701_cs42448_be_ops, + .dpcm_playback = 1, + .dpcm_capture = 1, + }, + [DAI_LINK_BE_I2S1] = { + .name = "mt2701-cs42448-I2S1", + .cpu_dai_name = "I2S1", + .no_pcm = 1, + .codec_dai_name = "cs42448", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS + | SND_SOC_DAIFMT_GATED, + .ops = &mt2701_cs42448_be_ops, + .dpcm_playback = 1, + .dpcm_capture = 1, + }, + [DAI_LINK_BE_I2S2] = { + .name = "mt2701-cs42448-I2S2", + .cpu_dai_name = "I2S2", + .no_pcm = 1, + .codec_dai_name = "cs42448", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS + | SND_SOC_DAIFMT_GATED, + .ops = &mt2701_cs42448_be_ops, + .dpcm_playback = 1, + .dpcm_capture = 1, + }, + [DAI_LINK_BE_I2S3] = { + .name = "mt2701-cs42448-I2S3", + .cpu_dai_name = "I2S3", + .no_pcm = 1, + .codec_dai_name = "cs42448", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS + | SND_SOC_DAIFMT_GATED, + .ops = &mt2701_cs42448_be_ops, + .dpcm_playback = 1, + .dpcm_capture = 1, + }, + [DAI_LINK_BE_MRG_BT] = { + .name = "mt2701-cs42448-MRG-BT", + .cpu_dai_name = "MRG BT", + .no_pcm = 1, + .codec_dai_name = "bt-sco-pcm-wb", + .dpcm_playback = 1, + .dpcm_capture = 1, + }, +}; + +static struct snd_soc_card mt2701_cs42448_soc_card = { + .name = "mt2701-cs42448", + .owner = THIS_MODULE, + .dai_link = mt2701_cs42448_dai_links, + .num_links = ARRAY_SIZE(mt2701_cs42448_dai_links), + .controls = mt2701_cs42448_controls, + .num_controls = ARRAY_SIZE(mt2701_cs42448_controls), + .dapm_widgets = mt2701_cs42448_asoc_card_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(mt2701_cs42448_asoc_card_dapm_widgets), +}; + +static int mt2701_cs42448_machine_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &mt2701_cs42448_soc_card; + int ret; + int i; + struct device_node *platform_node, *codec_node, *codec_node_bt_mrg; + struct mt2701_cs42448_private *priv = + devm_kzalloc(&pdev->dev, sizeof(struct mt2701_cs42448_private), + GFP_KERNEL); + struct device *dev = &pdev->dev; + + if (!priv) + return -ENOMEM; + + platform_node = of_parse_phandle(pdev->dev.of_node, + "mediatek,platform", 0); + if (!platform_node) { + dev_err(&pdev->dev, "Property 'platform' missing or invalid\n"); + return -EINVAL; + } + for (i = 0; i < card->num_links; i++) { + if (mt2701_cs42448_dai_links[i].platform_name) + continue; + mt2701_cs42448_dai_links[i].platform_of_node = platform_node; + } + + card->dev = dev; + + codec_node = of_parse_phandle(pdev->dev.of_node, + "mediatek,audio-codec", 0); + if (!codec_node) { + dev_err(&pdev->dev, + "Property 'audio-codec' missing or invalid\n"); + return -EINVAL; + } + for (i = 0; i < card->num_links; i++) { + if (mt2701_cs42448_dai_links[i].codec_name) + continue; + mt2701_cs42448_dai_links[i].codec_of_node = codec_node; + } + + codec_node_bt_mrg = of_parse_phandle(pdev->dev.of_node, + "mediatek,audio-codec-bt-mrg", 0); + if (!codec_node_bt_mrg) { + dev_err(&pdev->dev, + "Property 'audio-codec-bt-mrg' missing or invalid\n"); + return -EINVAL; + } + mt2701_cs42448_dai_links[DAI_LINK_BE_MRG_BT].codec_of_node + = codec_node_bt_mrg; + + ret = snd_soc_of_parse_audio_routing(card, "audio-routing"); + if (ret) { + dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret); + return ret; + } + + priv->i2s1_in_mux_gpio_sel_1 = + of_get_named_gpio(dev->of_node, "i2s1-in-sel-gpio1", 0); + if (gpio_is_valid(priv->i2s1_in_mux_gpio_sel_1)) { + ret = devm_gpio_request(dev, priv->i2s1_in_mux_gpio_sel_1, + "i2s1_in_mux_gpio_sel_1"); + if (ret) + dev_warn(&pdev->dev, "%s devm_gpio_request fail %d\n", + __func__, ret); + gpio_direction_output(priv->i2s1_in_mux_gpio_sel_1, 0); + } + + priv->i2s1_in_mux_gpio_sel_2 = + of_get_named_gpio(dev->of_node, "i2s1-in-sel-gpio2", 0); + if (gpio_is_valid(priv->i2s1_in_mux_gpio_sel_2)) { + ret = devm_gpio_request(dev, priv->i2s1_in_mux_gpio_sel_2, + "i2s1_in_mux_gpio_sel_2"); + if (ret) + dev_warn(&pdev->dev, "%s devm_gpio_request fail2 %d\n", + __func__, ret); + gpio_direction_output(priv->i2s1_in_mux_gpio_sel_2, 0); + } + snd_soc_card_set_drvdata(card, priv); + + ret = devm_snd_soc_register_card(&pdev->dev, card); + + if (ret) + dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n", + __func__, ret); + return ret; +} + +#ifdef CONFIG_OF +static const struct of_device_id mt2701_cs42448_machine_dt_match[] = { + {.compatible = "mediatek,mt2701-cs42448-machine",}, + {} +}; +#endif + +static struct platform_driver mt2701_cs42448_machine = { + .driver = { + .name = "mt2701-cs42448", + #ifdef CONFIG_OF + .of_match_table = mt2701_cs42448_machine_dt_match, + #endif + }, + .probe = mt2701_cs42448_machine_probe, +}; + +module_platform_driver(mt2701_cs42448_machine); + +/* Module information */ +MODULE_DESCRIPTION("MT2701 CS42448 ALSA SoC machine driver"); +MODULE_AUTHOR("Ir Lian <ir.lian@mediatek.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("mt2701 cs42448 soc card"); |