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187 lines
5.0 KiB
187 lines
5.0 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Copyright (c) 2015 The Linux Foundation. All rights reserved. |
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*/ |
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#include <linux/device.h> |
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/io.h> |
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#include <linux/of.h> |
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#include <linux/clk.h> |
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#include <linux/platform_device.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/jack.h> |
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#include <sound/soc.h> |
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#include <uapi/linux/input-event-codes.h> |
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#include <dt-bindings/sound/apq8016-lpass.h> |
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#include "common.h" |
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struct apq8016_sbc_data { |
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struct snd_soc_card card; |
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void __iomem *mic_iomux; |
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void __iomem *spkr_iomux; |
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struct snd_soc_jack jack; |
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bool jack_setup; |
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}; |
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#define MIC_CTRL_TER_WS_SLAVE_SEL BIT(21) |
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#define MIC_CTRL_QUA_WS_SLAVE_SEL_10 BIT(17) |
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#define MIC_CTRL_TLMM_SCLK_EN BIT(1) |
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#define SPKR_CTL_PRI_WS_SLAVE_SEL_11 (BIT(17) | BIT(16)) |
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#define DEFAULT_MCLK_RATE 9600000 |
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static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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struct snd_soc_dai *codec_dai; |
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struct snd_soc_component *component; |
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struct snd_soc_card *card = rtd->card; |
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struct apq8016_sbc_data *pdata = snd_soc_card_get_drvdata(card); |
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int i, rval; |
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switch (cpu_dai->id) { |
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case MI2S_PRIMARY: |
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writel(readl(pdata->spkr_iomux) | SPKR_CTL_PRI_WS_SLAVE_SEL_11, |
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pdata->spkr_iomux); |
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break; |
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case MI2S_QUATERNARY: |
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/* Configure the Quat MI2S to TLMM */ |
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writel(readl(pdata->mic_iomux) | MIC_CTRL_QUA_WS_SLAVE_SEL_10 | |
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MIC_CTRL_TLMM_SCLK_EN, |
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pdata->mic_iomux); |
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break; |
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case MI2S_TERTIARY: |
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writel(readl(pdata->mic_iomux) | MIC_CTRL_TER_WS_SLAVE_SEL | |
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MIC_CTRL_TLMM_SCLK_EN, |
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pdata->mic_iomux); |
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break; |
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default: |
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dev_err(card->dev, "unsupported cpu dai configuration\n"); |
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return -EINVAL; |
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} |
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if (!pdata->jack_setup) { |
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struct snd_jack *jack; |
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rval = snd_soc_card_jack_new(card, "Headset Jack", |
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SND_JACK_HEADSET | |
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SND_JACK_HEADPHONE | |
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SND_JACK_BTN_0 | SND_JACK_BTN_1 | |
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SND_JACK_BTN_2 | SND_JACK_BTN_3 | |
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SND_JACK_BTN_4, |
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&pdata->jack, NULL, 0); |
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if (rval < 0) { |
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dev_err(card->dev, "Unable to add Headphone Jack\n"); |
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return rval; |
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} |
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jack = pdata->jack.jack; |
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snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); |
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snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); |
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snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP); |
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snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); |
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pdata->jack_setup = true; |
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} |
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for_each_rtd_codec_dais(rtd, i, codec_dai) { |
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component = codec_dai->component; |
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/* Set default mclk for internal codec */ |
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rval = snd_soc_component_set_sysclk(component, 0, 0, DEFAULT_MCLK_RATE, |
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SND_SOC_CLOCK_IN); |
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if (rval != 0 && rval != -ENOTSUPP) { |
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dev_warn(card->dev, "Failed to set mclk: %d\n", rval); |
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return rval; |
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} |
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rval = snd_soc_component_set_jack(component, &pdata->jack, NULL); |
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if (rval != 0 && rval != -ENOTSUPP) { |
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dev_warn(card->dev, "Failed to set jack: %d\n", rval); |
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return rval; |
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} |
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} |
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return 0; |
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} |
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static void apq8016_sbc_add_ops(struct snd_soc_card *card) |
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{ |
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struct snd_soc_dai_link *link; |
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int i; |
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for_each_card_prelinks(card, i, link) |
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link->init = apq8016_sbc_dai_init; |
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} |
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static const struct snd_soc_dapm_widget apq8016_sbc_dapm_widgets[] = { |
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SND_SOC_DAPM_MIC("Handset Mic", NULL), |
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SND_SOC_DAPM_MIC("Headset Mic", NULL), |
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SND_SOC_DAPM_MIC("Secondary Mic", NULL), |
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SND_SOC_DAPM_MIC("Digital Mic1", NULL), |
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SND_SOC_DAPM_MIC("Digital Mic2", NULL), |
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}; |
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static int apq8016_sbc_platform_probe(struct platform_device *pdev) |
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{ |
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struct device *dev = &pdev->dev; |
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struct snd_soc_card *card; |
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struct apq8016_sbc_data *data; |
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struct resource *res; |
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int ret; |
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data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); |
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if (!data) |
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return -ENOMEM; |
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card = &data->card; |
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card->dev = dev; |
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card->owner = THIS_MODULE; |
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card->dapm_widgets = apq8016_sbc_dapm_widgets; |
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card->num_dapm_widgets = ARRAY_SIZE(apq8016_sbc_dapm_widgets); |
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ret = qcom_snd_parse_of(card); |
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if (ret) |
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return ret; |
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res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mic-iomux"); |
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data->mic_iomux = devm_ioremap_resource(dev, res); |
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if (IS_ERR(data->mic_iomux)) |
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return PTR_ERR(data->mic_iomux); |
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res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "spkr-iomux"); |
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data->spkr_iomux = devm_ioremap_resource(dev, res); |
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if (IS_ERR(data->spkr_iomux)) |
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return PTR_ERR(data->spkr_iomux); |
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snd_soc_card_set_drvdata(card, data); |
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apq8016_sbc_add_ops(card); |
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return devm_snd_soc_register_card(&pdev->dev, card); |
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} |
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static const struct of_device_id apq8016_sbc_device_id[] __maybe_unused = { |
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{ .compatible = "qcom,apq8016-sbc-sndcard" }, |
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{}, |
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}; |
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MODULE_DEVICE_TABLE(of, apq8016_sbc_device_id); |
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static struct platform_driver apq8016_sbc_platform_driver = { |
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.driver = { |
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.name = "qcom-apq8016-sbc", |
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.of_match_table = of_match_ptr(apq8016_sbc_device_id), |
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}, |
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.probe = apq8016_sbc_platform_probe, |
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}; |
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module_platform_driver(apq8016_sbc_platform_driver); |
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MODULE_AUTHOR("Srinivas Kandagatla <[email protected]"); |
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MODULE_DESCRIPTION("APQ8016 ASoC Machine Driver"); |
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MODULE_LICENSE("GPL v2");
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