diff options
Diffstat (limited to '')
| -rw-r--r-- | sound/soc/qcom/apq8016_sbc.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/sound/soc/qcom/apq8016_sbc.c b/sound/soc/qcom/apq8016_sbc.c new file mode 100644 index 000000000..575e2aefe --- /dev/null +++ b/sound/soc/qcom/apq8016_sbc.c @@ -0,0 +1,187 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2015 The Linux Foundation. All rights reserved. + */ + +#include <linux/device.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/clk.h> +#include <linux/platform_device.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/jack.h> +#include <sound/soc.h> +#include <uapi/linux/input-event-codes.h> +#include <dt-bindings/sound/apq8016-lpass.h> +#include "common.h" + +struct apq8016_sbc_data { + struct snd_soc_card card; + void __iomem *mic_iomux; + void __iomem *spkr_iomux; + struct snd_soc_jack jack; + bool jack_setup; +}; + +#define MIC_CTRL_TER_WS_SLAVE_SEL BIT(21) +#define MIC_CTRL_QUA_WS_SLAVE_SEL_10 BIT(17) +#define MIC_CTRL_TLMM_SCLK_EN BIT(1) +#define SPKR_CTL_PRI_WS_SLAVE_SEL_11 (BIT(17) | BIT(16)) +#define DEFAULT_MCLK_RATE 9600000 + +static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + struct snd_soc_dai *codec_dai; + struct snd_soc_component *component; + struct snd_soc_card *card = rtd->card; + struct apq8016_sbc_data *pdata = snd_soc_card_get_drvdata(card); + int i, rval; + + switch (cpu_dai->id) { + case MI2S_PRIMARY: + writel(readl(pdata->spkr_iomux) | SPKR_CTL_PRI_WS_SLAVE_SEL_11, + pdata->spkr_iomux); + break; + + case MI2S_QUATERNARY: + /* Configure the Quat MI2S to TLMM */ + writel(readl(pdata->mic_iomux) | MIC_CTRL_QUA_WS_SLAVE_SEL_10 | + MIC_CTRL_TLMM_SCLK_EN, + pdata->mic_iomux); + break; + case MI2S_TERTIARY: + writel(readl(pdata->mic_iomux) | MIC_CTRL_TER_WS_SLAVE_SEL | + MIC_CTRL_TLMM_SCLK_EN, + pdata->mic_iomux); + + break; + + default: + dev_err(card->dev, "unsupported cpu dai configuration\n"); + return -EINVAL; + + } + + if (!pdata->jack_setup) { + struct snd_jack *jack; + + rval = snd_soc_card_jack_new(card, "Headset Jack", + SND_JACK_HEADSET | + SND_JACK_HEADPHONE | + SND_JACK_BTN_0 | SND_JACK_BTN_1 | + SND_JACK_BTN_2 | SND_JACK_BTN_3 | + SND_JACK_BTN_4, + &pdata->jack, NULL, 0); + + if (rval < 0) { + dev_err(card->dev, "Unable to add Headphone Jack\n"); + return rval; + } + + jack = pdata->jack.jack; + + snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); + snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); + snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP); + snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); + pdata->jack_setup = true; + } + + for_each_rtd_codec_dais(rtd, i, codec_dai) { + + component = codec_dai->component; + /* Set default mclk for internal codec */ + rval = snd_soc_component_set_sysclk(component, 0, 0, DEFAULT_MCLK_RATE, + SND_SOC_CLOCK_IN); + if (rval != 0 && rval != -ENOTSUPP) { + dev_warn(card->dev, "Failed to set mclk: %d\n", rval); + return rval; + } + rval = snd_soc_component_set_jack(component, &pdata->jack, NULL); + if (rval != 0 && rval != -ENOTSUPP) { + dev_warn(card->dev, "Failed to set jack: %d\n", rval); + return rval; + } + } + + return 0; +} + +static void apq8016_sbc_add_ops(struct snd_soc_card *card) +{ + struct snd_soc_dai_link *link; + int i; + + for_each_card_prelinks(card, i, link) + link->init = apq8016_sbc_dai_init; +} + +static const struct snd_soc_dapm_widget apq8016_sbc_dapm_widgets[] = { + + SND_SOC_DAPM_MIC("Handset Mic", NULL), + SND_SOC_DAPM_MIC("Headset Mic", NULL), + SND_SOC_DAPM_MIC("Secondary Mic", NULL), + SND_SOC_DAPM_MIC("Digital Mic1", NULL), + SND_SOC_DAPM_MIC("Digital Mic2", NULL), +}; + +static int apq8016_sbc_platform_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct snd_soc_card *card; + struct apq8016_sbc_data *data; + struct resource *res; + int ret; + + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + card = &data->card; + card->dev = dev; + card->owner = THIS_MODULE; + card->dapm_widgets = apq8016_sbc_dapm_widgets; + card->num_dapm_widgets = ARRAY_SIZE(apq8016_sbc_dapm_widgets); + + ret = qcom_snd_parse_of(card); + if (ret) + return ret; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mic-iomux"); + data->mic_iomux = devm_ioremap_resource(dev, res); + if (IS_ERR(data->mic_iomux)) + return PTR_ERR(data->mic_iomux); + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "spkr-iomux"); + data->spkr_iomux = devm_ioremap_resource(dev, res); + if (IS_ERR(data->spkr_iomux)) + return PTR_ERR(data->spkr_iomux); + + snd_soc_card_set_drvdata(card, data); + + apq8016_sbc_add_ops(card); + return devm_snd_soc_register_card(&pdev->dev, card); +} + +static const struct of_device_id apq8016_sbc_device_id[] = { + { .compatible = "qcom,apq8016-sbc-sndcard" }, + {}, +}; +MODULE_DEVICE_TABLE(of, apq8016_sbc_device_id); + +static struct platform_driver apq8016_sbc_platform_driver = { + .driver = { + .name = "qcom-apq8016-sbc", + .of_match_table = of_match_ptr(apq8016_sbc_device_id), + }, + .probe = apq8016_sbc_platform_probe, +}; +module_platform_driver(apq8016_sbc_platform_driver); + +MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org"); +MODULE_DESCRIPTION("APQ8016 ASoC Machine Driver"); +MODULE_LICENSE("GPL v2"); |