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343 lines
9.6 KiB
343 lines
9.6 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* omap-twl4030.c -- SoC audio for TI SoC based boards with twl4030 codec |
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* |
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* Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com |
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* All rights reserved. |
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* |
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* Author: Peter Ujfalusi <[email protected]> |
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* |
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* This driver replaces the following machine drivers: |
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* omap3beagle (Author: Steve Sakoman <[email protected]>) |
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* omap3evm (Author: Anuj Aggarwal <[email protected]>) |
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* overo (Author: Steve Sakoman <[email protected]>) |
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* igep0020 (Author: Enric Balletbo i Serra <[email protected]>) |
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* zoom2 (Author: Misael Lopez Cruz <[email protected]>) |
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* sdp3430 (Author: Misael Lopez Cruz <[email protected]>) |
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*/ |
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#include <linux/platform_device.h> |
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#include <linux/platform_data/omap-twl4030.h> |
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#include <linux/module.h> |
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#include <linux/of.h> |
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#include <linux/gpio.h> |
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#include <linux/of_gpio.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-mcbsp.h" |
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struct omap_twl4030 { |
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int jack_detect; /* board can detect jack events */ |
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struct snd_soc_jack hs_jack; |
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}; |
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static int omap_twl4030_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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unsigned int fmt; |
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switch (params_channels(params)) { |
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case 2: /* Stereo I2S mode */ |
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fmt = SND_SOC_DAIFMT_I2S | |
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SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_CBM_CFM; |
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break; |
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case 4: /* Four channel TDM mode */ |
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fmt = SND_SOC_DAIFMT_DSP_A | |
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SND_SOC_DAIFMT_IB_NF | |
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SND_SOC_DAIFMT_CBM_CFM; |
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break; |
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default: |
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return -EINVAL; |
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} |
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return snd_soc_runtime_set_dai_fmt(rtd, fmt); |
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} |
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static const struct snd_soc_ops omap_twl4030_ops = { |
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.hw_params = omap_twl4030_hw_params, |
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}; |
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static const struct snd_soc_dapm_widget dapm_widgets[] = { |
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SND_SOC_DAPM_SPK("Earpiece Spk", NULL), |
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SND_SOC_DAPM_SPK("Handsfree Spk", NULL), |
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SND_SOC_DAPM_HP("Headset Stereophone", NULL), |
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SND_SOC_DAPM_SPK("Ext Spk", NULL), |
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SND_SOC_DAPM_SPK("Carkit Spk", NULL), |
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SND_SOC_DAPM_MIC("Main Mic", NULL), |
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SND_SOC_DAPM_MIC("Sub Mic", NULL), |
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SND_SOC_DAPM_MIC("Headset Mic", NULL), |
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SND_SOC_DAPM_MIC("Carkit Mic", NULL), |
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SND_SOC_DAPM_MIC("Digital0 Mic", NULL), |
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SND_SOC_DAPM_MIC("Digital1 Mic", NULL), |
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SND_SOC_DAPM_LINE("Line In", NULL), |
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}; |
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static const struct snd_soc_dapm_route audio_map[] = { |
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/* Headset Stereophone: HSOL, HSOR */ |
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{"Headset Stereophone", NULL, "HSOL"}, |
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{"Headset Stereophone", NULL, "HSOR"}, |
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/* External Speakers: HFL, HFR */ |
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{"Handsfree Spk", NULL, "HFL"}, |
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{"Handsfree Spk", NULL, "HFR"}, |
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/* External Speakers: PredrivL, PredrivR */ |
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{"Ext Spk", NULL, "PREDRIVEL"}, |
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{"Ext Spk", NULL, "PREDRIVER"}, |
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/* Carkit speakers: CARKITL, CARKITR */ |
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{"Carkit Spk", NULL, "CARKITL"}, |
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{"Carkit Spk", NULL, "CARKITR"}, |
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/* Earpiece */ |
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{"Earpiece Spk", NULL, "EARPIECE"}, |
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/* External Mics: MAINMIC, SUBMIC with bias */ |
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{"MAINMIC", NULL, "Main Mic"}, |
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{"Main Mic", NULL, "Mic Bias 1"}, |
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{"SUBMIC", NULL, "Sub Mic"}, |
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{"Sub Mic", NULL, "Mic Bias 2"}, |
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/* Headset Mic: HSMIC with bias */ |
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{"HSMIC", NULL, "Headset Mic"}, |
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{"Headset Mic", NULL, "Headset Mic Bias"}, |
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/* Digital Mics: DIGIMIC0, DIGIMIC1 with bias */ |
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{"DIGIMIC0", NULL, "Digital0 Mic"}, |
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{"Digital0 Mic", NULL, "Mic Bias 1"}, |
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{"DIGIMIC1", NULL, "Digital1 Mic"}, |
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{"Digital1 Mic", NULL, "Mic Bias 2"}, |
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/* Carkit In: CARKITMIC */ |
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{"CARKITMIC", NULL, "Carkit Mic"}, |
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/* Aux In: AUXL, AUXR */ |
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{"AUXL", NULL, "Line In"}, |
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{"AUXR", NULL, "Line In"}, |
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}; |
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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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/* Headset jack detection gpios */ |
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static struct snd_soc_jack_gpio hs_jack_gpios[] = { |
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{ |
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.name = "hsdet-gpio", |
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.report = SND_JACK_HEADSET, |
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.debounce_time = 200, |
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}, |
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}; |
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static inline void twl4030_disconnect_pin(struct snd_soc_dapm_context *dapm, |
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int connected, char *pin) |
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{ |
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if (!connected) |
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snd_soc_dapm_disable_pin(dapm, pin); |
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} |
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static int omap_twl4030_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct snd_soc_card *card = rtd->card; |
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struct snd_soc_dapm_context *dapm = &card->dapm; |
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struct omap_tw4030_pdata *pdata = dev_get_platdata(card->dev); |
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struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card); |
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int ret = 0; |
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/* Headset jack detection only if it is supported */ |
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if (priv->jack_detect > 0) { |
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hs_jack_gpios[0].gpio = priv->jack_detect; |
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ret = snd_soc_card_jack_new(rtd->card, "Headset Jack", |
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SND_JACK_HEADSET, &priv->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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ret = snd_soc_jack_add_gpios(&priv->hs_jack, |
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ARRAY_SIZE(hs_jack_gpios), |
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hs_jack_gpios); |
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if (ret) |
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return ret; |
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} |
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/* |
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* NULL pdata means we booted with DT. In this case the routing is |
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* provided and the card is fully routed, no need to mark pins. |
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*/ |
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if (!pdata || !pdata->custom_routing) |
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return ret; |
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/* Disable not connected paths if not used */ |
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twl4030_disconnect_pin(dapm, pdata->has_ear, "Earpiece Spk"); |
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twl4030_disconnect_pin(dapm, pdata->has_hf, "Handsfree Spk"); |
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twl4030_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone"); |
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twl4030_disconnect_pin(dapm, pdata->has_predriv, "Ext Spk"); |
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twl4030_disconnect_pin(dapm, pdata->has_carkit, "Carkit Spk"); |
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twl4030_disconnect_pin(dapm, pdata->has_mainmic, "Main Mic"); |
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twl4030_disconnect_pin(dapm, pdata->has_submic, "Sub Mic"); |
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twl4030_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic"); |
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twl4030_disconnect_pin(dapm, pdata->has_carkitmic, "Carkit Mic"); |
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twl4030_disconnect_pin(dapm, pdata->has_digimic0, "Digital0 Mic"); |
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twl4030_disconnect_pin(dapm, pdata->has_digimic1, "Digital1 Mic"); |
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twl4030_disconnect_pin(dapm, pdata->has_linein, "Line In"); |
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return ret; |
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} |
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/* Digital audio interface glue - connects codec <--> CPU */ |
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SND_SOC_DAILINK_DEFS(hifi, |
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DAILINK_COMP_ARRAY(COMP_CPU("omap-mcbsp.2")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("twl4030-codec", "twl4030-hifi")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("omap-mcbsp.2"))); |
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SND_SOC_DAILINK_DEFS(voice, |
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DAILINK_COMP_ARRAY(COMP_CPU("omap-mcbsp.3")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("twl4030-codec", "twl4030-voice")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("omap-mcbsp.3"))); |
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static struct snd_soc_dai_link omap_twl4030_dai_links[] = { |
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{ |
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.name = "TWL4030 HiFi", |
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.stream_name = "TWL4030 HiFi", |
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.init = omap_twl4030_init, |
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.ops = &omap_twl4030_ops, |
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SND_SOC_DAILINK_REG(hifi), |
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}, |
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{ |
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.name = "TWL4030 Voice", |
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.stream_name = "TWL4030 Voice", |
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.dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | |
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SND_SOC_DAIFMT_CBM_CFM, |
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SND_SOC_DAILINK_REG(voice), |
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}, |
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}; |
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/* Audio machine driver */ |
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static struct snd_soc_card omap_twl4030_card = { |
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.owner = THIS_MODULE, |
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.dai_link = omap_twl4030_dai_links, |
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.num_links = ARRAY_SIZE(omap_twl4030_dai_links), |
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.dapm_widgets = dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(dapm_widgets), |
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.dapm_routes = audio_map, |
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.num_dapm_routes = ARRAY_SIZE(audio_map), |
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}; |
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static int omap_twl4030_probe(struct platform_device *pdev) |
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{ |
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struct omap_tw4030_pdata *pdata = dev_get_platdata(&pdev->dev); |
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struct device_node *node = pdev->dev.of_node; |
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struct snd_soc_card *card = &omap_twl4030_card; |
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struct omap_twl4030 *priv; |
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int ret = 0; |
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card->dev = &pdev->dev; |
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priv = devm_kzalloc(&pdev->dev, sizeof(struct omap_twl4030), GFP_KERNEL); |
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if (priv == NULL) |
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return -ENOMEM; |
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if (node) { |
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struct device_node *dai_node; |
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struct property *prop; |
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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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dai_node = of_parse_phandle(node, "ti,mcbsp", 0); |
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if (!dai_node) { |
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dev_err(&pdev->dev, "McBSP node is not provided\n"); |
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return -EINVAL; |
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} |
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omap_twl4030_dai_links[0].cpus->dai_name = NULL; |
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omap_twl4030_dai_links[0].cpus->of_node = dai_node; |
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omap_twl4030_dai_links[0].platforms->name = NULL; |
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omap_twl4030_dai_links[0].platforms->of_node = dai_node; |
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dai_node = of_parse_phandle(node, "ti,mcbsp-voice", 0); |
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if (!dai_node) { |
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card->num_links = 1; |
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} else { |
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omap_twl4030_dai_links[1].cpus->dai_name = NULL; |
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omap_twl4030_dai_links[1].cpus->of_node = dai_node; |
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omap_twl4030_dai_links[1].platforms->name = NULL; |
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omap_twl4030_dai_links[1].platforms->of_node = dai_node; |
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} |
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priv->jack_detect = of_get_named_gpio(node, |
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"ti,jack-det-gpio", 0); |
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/* Optional: audio routing can be provided */ |
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prop = of_find_property(node, "ti,audio-routing", NULL); |
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if (prop) { |
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ret = snd_soc_of_parse_audio_routing(card, |
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"ti,audio-routing"); |
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if (ret) |
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return ret; |
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card->fully_routed = 1; |
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} |
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} else if (pdata) { |
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if (pdata->card_name) { |
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card->name = pdata->card_name; |
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} else { |
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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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if (!pdata->voice_connected) |
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card->num_links = 1; |
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priv->jack_detect = pdata->jack_detect; |
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} else { |
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dev_err(&pdev->dev, "Missing pdata\n"); |
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return -ENODEV; |
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} |
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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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return 0; |
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} |
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static const struct of_device_id omap_twl4030_of_match[] = { |
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{.compatible = "ti,omap-twl4030", }, |
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{ }, |
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}; |
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MODULE_DEVICE_TABLE(of, omap_twl4030_of_match); |
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static struct platform_driver omap_twl4030_driver = { |
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.driver = { |
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.name = "omap-twl4030", |
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.pm = &snd_soc_pm_ops, |
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.of_match_table = omap_twl4030_of_match, |
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}, |
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.probe = omap_twl4030_probe, |
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}; |
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module_platform_driver(omap_twl4030_driver); |
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MODULE_AUTHOR("Peter Ujfalusi <[email protected]>"); |
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MODULE_DESCRIPTION("ALSA SoC for TI SoC based boards with twl4030 codec"); |
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MODULE_LICENSE("GPL"); |
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MODULE_ALIAS("platform:omap-twl4030");
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