/* * sound\soc\sunxi\sunx8iw11_sndcodec.c * (C) Copyright 2014-2018 * allwinner Technology Co., Ltd. * huangxin * wolfgang huang * * some simple description for this code * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct sunxi_card_priv { int jack_gpio; int jack_invert; /* 0->high is plug_in, 1->high is plug_out */ struct snd_soc_jack jack_detect; }; /* Headphone jack detection DAPM pins */ static struct snd_soc_jack_pin sunxi_jack_pins[] = { { .pin = "Headphone", .mask = SND_JACK_HEADPHONE, }, }; /* Headphone jack detection gpios */ static struct snd_soc_jack_gpio sunxi_jack_gpios[] = { { .name = "jack-det", .report = SND_JACK_HEADPHONE, .debounce_time = 200, }, }; /* we only support Headphone & PHONEOUT, so just left LINEOUT no used */ static const struct snd_kcontrol_new sunxi_card_controls[] = { SOC_DAPM_PIN_SWITCH("Headphone"), //SOC_DAPM_PIN_SWITCH("Radio"), //SOC_DAPM_PIN_SWITCH("LINEIN"), SOC_DAPM_PIN_SWITCH("Phoneout Speaker"), }; static const struct snd_soc_dapm_widget sunxi_card_dapm_widgets[] = { SND_SOC_DAPM_MIC("Main Mic", NULL), SND_SOC_DAPM_HP("Headphone", NULL), SND_SOC_DAPM_LINE("Radio", NULL), SND_SOC_DAPM_SPK("Phoneout Speaker", NULL), SND_SOC_DAPM_LINE("LINEIN", NULL), SND_SOC_DAPM_LINE("LINEOUT", NULL), }; static const struct snd_soc_dapm_route sunxi_card_routes[] = { {"MainMic Bias", NULL, "Main Mic"}, {"MIC1", NULL, "MainMic Bias"}, {"MIC2", NULL, "MainMic Bias"}, {"Headphone", NULL, "HPOUTL"}, {"Headphone", NULL, "HPOUTR"}, {"Phoneout Speaker", NULL, "PHONEOUTP"}, {"Phoneout Speaker", NULL, "PHONEOUTN"}, {"LINEINL", NULL, "LINEIN"}, {"LINEINR", NULL, "LINEIN"}, {"LINEOUT", NULL, "LINEOUTL"}, {"LINEOUT", NULL, "LINEOUTR"}, {"FML", NULL, "Radio"}, {"FMR", NULL, "Radio"}, }; /* * Card initialization */ static int sunxi_card_init(struct snd_soc_pcm_runtime *rtd) { int ret; struct snd_soc_codec *codec = rtd->codec; struct snd_soc_dapm_context *dapm = &codec->component.dapm; struct sunxi_card_priv *priv = snd_soc_card_get_drvdata(rtd->card); snd_soc_dapm_disable_pin(dapm, "Radio"); snd_soc_dapm_disable_pin(dapm, "Headphone"); snd_soc_dapm_disable_pin(dapm, "Phoneout Speaker"); snd_soc_dapm_disable_pin(dapm, "LINEIN"); snd_soc_dapm_disable_pin(dapm, "LINEOUT"); /* Headset jack detection only if it is supported */ if (priv->jack_gpio > 0) { sunxi_jack_gpios[0].gpio = priv->jack_gpio; sunxi_jack_gpios[0].invert = priv->jack_invert; ret = snd_soc_card_jack_new(rtd->card, "Headphone Jack", SND_JACK_HEADPHONE, &priv->jack_detect, NULL, 0); if (ret) return ret; ret = snd_soc_jack_add_pins(&priv->jack_detect, ARRAY_SIZE(sunxi_jack_pins), sunxi_jack_pins); if (ret) return ret; ret = snd_soc_jack_add_gpios(&priv->jack_detect, ARRAY_SIZE(sunxi_jack_gpios), sunxi_jack_gpios); if (ret) { dev_err(rtd->card->dev, "jack_add_gpios failed: %d," "maybe gpio has't external interrupt ability\n", ret); return ret; } } snd_soc_dapm_sync(dapm); return 0; } static int sunxi_card_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 *codec_dai = rtd->codec_dai; struct snd_soc_card *card = rtd->card; unsigned int freq; int ret; switch (params_rate(params)) { case 8000: case 12000: case 16000: case 24000: case 32000: case 48000: case 96000: case 192000: freq = 24576000; break; case 11025: case 22050: case 44100: freq = 22579200; break; default: dev_err(card->dev, "invalid rate setting\n"); return -EINVAL; } ret = snd_soc_dai_set_sysclk(codec_dai, 0, freq, 0); if (ret < 0) { dev_err(card->dev, "set codec dai sysclk faided.\n"); return ret; } return 0; } static struct snd_soc_ops sunxi_card_ops = { .hw_params = sunxi_card_hw_params, }; static int sunxi_card_suspend(struct snd_soc_card *card) { struct sunxi_card_priv *priv = snd_soc_card_get_drvdata(card); if (priv->jack_gpio > 0) snd_soc_jack_free_gpios(&priv->jack_detect, ARRAY_SIZE(sunxi_jack_gpios), sunxi_jack_gpios); return 0; } static int sunxi_card_resume(struct snd_soc_card *card) { struct sunxi_card_priv *priv = snd_soc_card_get_drvdata(card); int ret; if (priv->jack_gpio > 0) { ret = snd_soc_jack_add_gpios(&priv->jack_detect, ARRAY_SIZE(sunxi_jack_gpios), sunxi_jack_gpios); if (ret < 0) { dev_err(card->dev, "jack_add_gpios failed: %d," "maybe gpio has't external interrupt ability\n", ret); return ret; } } return 0; } static struct snd_soc_dai_link sunxi_card_dai_link[] = { { .name = "audiocodec", .stream_name = "SUNXI-CODEC", .cpu_dai_name = "sunxi-internal-cpudai", .codec_dai_name = "sun8iw11codec", .platform_name = "sunxi-internal-cpudai", .codec_name = "sunxi-internal-codec", .init = sunxi_card_init, .ops = &sunxi_card_ops, }, }; static struct snd_soc_card snd_soc_sunxi_card = { .name = "audiocodec", .owner = THIS_MODULE, .dai_link = sunxi_card_dai_link, .num_links = ARRAY_SIZE(sunxi_card_dai_link), .controls = sunxi_card_controls, .num_controls = ARRAY_SIZE(sunxi_card_controls), .dapm_widgets = sunxi_card_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(sunxi_card_dapm_widgets), .dapm_routes = sunxi_card_routes, .num_dapm_routes = ARRAY_SIZE(sunxi_card_routes), .suspend_post = sunxi_card_suspend, .resume_post = sunxi_card_resume, }; static int sunxi_card_dev_probe(struct platform_device *pdev) { int ret = 0; unsigned int temp_val = 0; struct device_node *np = pdev->dev.of_node; struct snd_soc_card *card = &snd_soc_sunxi_card; struct sunxi_card_priv *priv; /* register the soc card */ card->dev = &pdev->dev; priv = devm_kzalloc(&pdev->dev, sizeof(struct sunxi_card_priv), GFP_KERNEL); if (!priv) return -ENOMEM; priv->jack_gpio = of_get_named_gpio(np, "jack_det_gpio", 0); ret = of_property_read_u32(np, "jack_invert", &temp_val); if (ret < 0) { dev_err(&pdev->dev, "jack_invert not setting, default setting 0\n"); priv->jack_invert = 0; } else { priv->jack_invert = temp_val; } sunxi_card_dai_link[0].cpu_dai_name = NULL; sunxi_card_dai_link[0].cpu_of_node = of_parse_phandle(np, "sunxi,cpudai-controller", 0); if (!sunxi_card_dai_link[0].cpu_of_node) { dev_err(&pdev->dev, "Property 'sunxi,cpudai-controller' missing or invalid\n"); ret = -EINVAL; goto err_devm_kfree; } else { sunxi_card_dai_link[0].platform_name = NULL; sunxi_card_dai_link[0].platform_of_node = sunxi_card_dai_link[0].cpu_of_node; } sunxi_card_dai_link[0].codec_name = NULL; sunxi_card_dai_link[0].codec_of_node = of_parse_phandle(np, "sunxi,audio-codec", 0); if (!sunxi_card_dai_link[0].codec_of_node) { dev_err(&pdev->dev, "Property 'sunxi,audio-codec' missing or invalid\n"); ret = -EINVAL; goto err_devm_kfree; } snd_soc_card_set_drvdata(card, priv); ret = snd_soc_register_card(card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret); goto err_devm_kfree; } return 0; err_devm_kfree: devm_kfree(&pdev->dev, priv); return ret; } static int __exit sunxi_card_dev_remove(struct platform_device *pdev) { struct sunxi_card_priv *priv = dev_get_drvdata(&pdev->dev); devm_kfree(&pdev->dev, priv); return 0; } static const struct of_device_id sunxi_card_of_match[] = { { .compatible = "allwinner,sunxi-codec-machine", }, {}, }; static struct platform_driver sunxi_machine_driver = { .driver = { .name = "sunxi-codec-machine", .owner = THIS_MODULE, .pm = &snd_soc_pm_ops, .of_match_table = sunxi_card_of_match, }, .probe = sunxi_card_dev_probe, .remove = __exit_p(sunxi_card_dev_remove), }; module_platform_driver(sunxi_machine_driver); MODULE_AUTHOR("wolfgang huang "); MODULE_DESCRIPTION("SUNXI Codec Machine ASoC driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:sunxi-codec-machine");