355 lines
9.3 KiB
C
355 lines
9.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* omap-abe-twl6040.c -- SoC audio for TI OMAP based boards with ABE and
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* twl6040 codec
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*
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* Author: Misael Lopez Cruz <misael.lopez@ti.com>
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*/
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#include <linux/clk.h>
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#include <linux/platform_device.h>
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#include <linux/mfd/twl6040.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include "omap-dmic.h"
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#include "omap-mcpdm.h"
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#include "../codecs/twl6040.h"
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SND_SOC_DAILINK_DEFS(link0,
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DAILINK_COMP_ARRAY(COMP_EMPTY()),
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DAILINK_COMP_ARRAY(COMP_CODEC("twl6040-codec",
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"twl6040-legacy")),
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DAILINK_COMP_ARRAY(COMP_EMPTY()));
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SND_SOC_DAILINK_DEFS(link1,
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DAILINK_COMP_ARRAY(COMP_EMPTY()),
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DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec",
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"dmic-hifi")),
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DAILINK_COMP_ARRAY(COMP_EMPTY()));
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struct abe_twl6040 {
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struct snd_soc_card card;
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struct snd_soc_dai_link dai_links[2];
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int jack_detection; /* board can detect jack events */
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int mclk_freq; /* MCLK frequency speed for twl6040 */
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};
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static struct platform_device *dmic_codec_dev;
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static int omap_abe_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
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struct snd_soc_card *card = rtd->card;
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struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card);
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int clk_id, freq;
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int ret;
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clk_id = twl6040_get_clk_id(codec_dai->component);
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if (clk_id == TWL6040_SYSCLK_SEL_HPPLL)
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freq = priv->mclk_freq;
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else if (clk_id == TWL6040_SYSCLK_SEL_LPPLL)
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freq = 32768;
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else
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return -EINVAL;
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/* set the codec mclk */
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ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq,
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SND_SOC_CLOCK_IN);
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if (ret) {
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printk(KERN_ERR "can't set codec system clock\n");
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return ret;
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}
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return ret;
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}
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static const struct snd_soc_ops omap_abe_ops = {
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.hw_params = omap_abe_hw_params,
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};
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static int omap_abe_dmic_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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int ret = 0;
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ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_DMIC_SYSCLK_PAD_CLKS,
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19200000, SND_SOC_CLOCK_IN);
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if (ret < 0) {
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printk(KERN_ERR "can't set DMIC cpu system clock\n");
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return ret;
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}
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ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_DMIC_ABE_DMIC_CLK, 2400000,
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SND_SOC_CLOCK_OUT);
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if (ret < 0) {
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printk(KERN_ERR "can't set DMIC output clock\n");
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return ret;
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}
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return 0;
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}
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static const struct snd_soc_ops omap_abe_dmic_ops = {
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.hw_params = omap_abe_dmic_hw_params,
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};
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/* Headset jack */
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static struct snd_soc_jack hs_jack;
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/*Headset jack detection DAPM pins */
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static struct snd_soc_jack_pin hs_jack_pins[] = {
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{
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.pin = "Headset Mic",
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.mask = SND_JACK_MICROPHONE,
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},
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{
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.pin = "Headset Stereophone",
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.mask = SND_JACK_HEADPHONE,
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},
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};
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/* SDP4430 machine DAPM */
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static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
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/* Outputs */
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SND_SOC_DAPM_HP("Headset Stereophone", NULL),
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SND_SOC_DAPM_SPK("Earphone Spk", NULL),
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SND_SOC_DAPM_SPK("Ext Spk", NULL),
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SND_SOC_DAPM_LINE("Line Out", NULL),
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SND_SOC_DAPM_SPK("Vibrator", NULL),
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/* Inputs */
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_MIC("Main Handset Mic", NULL),
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SND_SOC_DAPM_MIC("Sub Handset Mic", NULL),
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SND_SOC_DAPM_LINE("Line In", NULL),
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/* Digital microphones */
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SND_SOC_DAPM_MIC("Digital Mic", NULL),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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/* Routings for outputs */
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{"Headset Stereophone", NULL, "HSOL"},
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{"Headset Stereophone", NULL, "HSOR"},
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{"Earphone Spk", NULL, "EP"},
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{"Ext Spk", NULL, "HFL"},
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{"Ext Spk", NULL, "HFR"},
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{"Line Out", NULL, "AUXL"},
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{"Line Out", NULL, "AUXR"},
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{"Vibrator", NULL, "VIBRAL"},
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{"Vibrator", NULL, "VIBRAR"},
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/* Routings for inputs */
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{"HSMIC", NULL, "Headset Mic"},
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{"Headset Mic", NULL, "Headset Mic Bias"},
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{"MAINMIC", NULL, "Main Handset Mic"},
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{"Main Handset Mic", NULL, "Main Mic Bias"},
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{"SUBMIC", NULL, "Sub Handset Mic"},
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{"Sub Handset Mic", NULL, "Main Mic Bias"},
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{"AFML", NULL, "Line In"},
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{"AFMR", NULL, "Line In"},
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};
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static int omap_abe_twl6040_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
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struct snd_soc_card *card = rtd->card;
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struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card);
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int hs_trim;
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int ret;
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/*
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* Configure McPDM offset cancellation based on the HSOTRIM value from
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* twl6040.
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*/
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hs_trim = twl6040_get_trim_value(component, TWL6040_TRIM_HSOTRIM);
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omap_mcpdm_configure_dn_offsets(rtd, TWL6040_HSF_TRIM_LEFT(hs_trim),
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TWL6040_HSF_TRIM_RIGHT(hs_trim));
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/* Headset jack detection only if it is supported */
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if (priv->jack_detection) {
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ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
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SND_JACK_HEADSET, &hs_jack,
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hs_jack_pins,
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ARRAY_SIZE(hs_jack_pins));
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if (ret)
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return ret;
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twl6040_hs_jack_detect(component, &hs_jack, SND_JACK_HEADSET);
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}
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return 0;
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}
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static const struct snd_soc_dapm_route dmic_audio_map[] = {
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{"DMic", NULL, "Digital Mic"},
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{"Digital Mic", NULL, "Digital Mic1 Bias"},
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};
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static int omap_abe_dmic_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_dapm_context *dapm = &rtd->card->dapm;
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return snd_soc_dapm_add_routes(dapm, dmic_audio_map,
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ARRAY_SIZE(dmic_audio_map));
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}
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static int omap_abe_probe(struct platform_device *pdev)
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{
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struct device_node *node = pdev->dev.of_node;
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struct snd_soc_card *card;
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struct device_node *dai_node;
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struct abe_twl6040 *priv;
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int num_links = 0;
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int ret = 0;
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if (!node) {
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dev_err(&pdev->dev, "of node is missing.\n");
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return -ENODEV;
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}
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priv = devm_kzalloc(&pdev->dev, sizeof(struct abe_twl6040), GFP_KERNEL);
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if (priv == NULL)
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return -ENOMEM;
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card = &priv->card;
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card->dev = &pdev->dev;
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card->owner = THIS_MODULE;
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card->dapm_widgets = twl6040_dapm_widgets;
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card->num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets);
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card->dapm_routes = audio_map;
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card->num_dapm_routes = ARRAY_SIZE(audio_map);
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if (snd_soc_of_parse_card_name(card, "ti,model")) {
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dev_err(&pdev->dev, "Card name is not provided\n");
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return -ENODEV;
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}
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ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing");
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if (ret) {
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dev_err(&pdev->dev, "Error while parsing DAPM routing\n");
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return ret;
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}
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dai_node = of_parse_phandle(node, "ti,mcpdm", 0);
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if (!dai_node) {
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dev_err(&pdev->dev, "McPDM node is not provided\n");
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return -EINVAL;
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}
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priv->dai_links[0].name = "DMIC";
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priv->dai_links[0].stream_name = "TWL6040";
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priv->dai_links[0].cpus = link0_cpus;
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priv->dai_links[0].num_cpus = 1;
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priv->dai_links[0].cpus->of_node = dai_node;
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priv->dai_links[0].platforms = link0_platforms;
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priv->dai_links[0].num_platforms = 1;
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priv->dai_links[0].platforms->of_node = dai_node;
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priv->dai_links[0].codecs = link0_codecs;
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priv->dai_links[0].num_codecs = 1;
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priv->dai_links[0].init = omap_abe_twl6040_init;
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priv->dai_links[0].ops = &omap_abe_ops;
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dai_node = of_parse_phandle(node, "ti,dmic", 0);
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if (dai_node) {
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num_links = 2;
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priv->dai_links[1].name = "TWL6040";
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priv->dai_links[1].stream_name = "DMIC Capture";
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priv->dai_links[1].cpus = link1_cpus;
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priv->dai_links[1].num_cpus = 1;
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priv->dai_links[1].cpus->of_node = dai_node;
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priv->dai_links[1].platforms = link1_platforms;
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priv->dai_links[1].num_platforms = 1;
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priv->dai_links[1].platforms->of_node = dai_node;
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priv->dai_links[1].codecs = link1_codecs;
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priv->dai_links[1].num_codecs = 1;
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priv->dai_links[1].init = omap_abe_dmic_init;
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priv->dai_links[1].ops = &omap_abe_dmic_ops;
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} else {
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num_links = 1;
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}
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priv->jack_detection = of_property_read_bool(node, "ti,jack-detection");
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of_property_read_u32(node, "ti,mclk-freq", &priv->mclk_freq);
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if (!priv->mclk_freq) {
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dev_err(&pdev->dev, "MCLK frequency not provided\n");
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return -EINVAL;
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}
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card->fully_routed = 1;
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card->dai_link = priv->dai_links;
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card->num_links = num_links;
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snd_soc_card_set_drvdata(card, priv);
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ret = devm_snd_soc_register_card(&pdev->dev, card);
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if (ret)
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dev_err(&pdev->dev, "devm_snd_soc_register_card() failed: %d\n",
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ret);
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return ret;
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}
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static const struct of_device_id omap_abe_of_match[] = {
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{.compatible = "ti,abe-twl6040", },
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{ },
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};
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MODULE_DEVICE_TABLE(of, omap_abe_of_match);
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static struct platform_driver omap_abe_driver = {
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.driver = {
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.name = "omap-abe-twl6040",
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.pm = &snd_soc_pm_ops,
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.of_match_table = omap_abe_of_match,
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},
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.probe = omap_abe_probe,
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};
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static int __init omap_abe_init(void)
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{
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int ret;
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dmic_codec_dev = platform_device_register_simple("dmic-codec", -1, NULL,
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0);
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if (IS_ERR(dmic_codec_dev)) {
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pr_err("%s: dmic-codec device registration failed\n", __func__);
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return PTR_ERR(dmic_codec_dev);
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}
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ret = platform_driver_register(&omap_abe_driver);
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if (ret) {
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pr_err("%s: platform driver registration failed\n", __func__);
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platform_device_unregister(dmic_codec_dev);
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}
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return ret;
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}
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module_init(omap_abe_init);
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static void __exit omap_abe_exit(void)
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{
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platform_driver_unregister(&omap_abe_driver);
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platform_device_unregister(dmic_codec_dev);
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}
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module_exit(omap_abe_exit);
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MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
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MODULE_DESCRIPTION("ALSA SoC for OMAP boards with ABE and twl6040 codec");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:omap-abe-twl6040");
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