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359 lines
9.4 KiB
359 lines
9.4 KiB
// 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 <[email protected]> |
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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 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 = 0; |
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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(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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if (!priv->mclk_freq) { |
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dev_err(&pdev->dev, "MCLK frequency missing\n"); |
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return -ENODEV; |
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} |
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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 <[email protected]>"); |
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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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