388 строки
11 KiB
C
388 строки
11 KiB
C
/*
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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 - http://www.ti.com
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* All rights reserved.
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*
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* Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
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*
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* This driver replaces the following machine drivers:
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* omap3beagle (Author: Steve Sakoman <steve@sakoman.com>)
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* omap3evm (Author: Anuj Aggarwal <anuj.aggarwal@ti.com>)
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* overo (Author: Steve Sakoman <steve@sakoman.com>)
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* igep0020 (Author: Enric Balletbo i Serra <eballetbo@iseebcn.com>)
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* zoom2 (Author: Misael Lopez Cruz <misael.lopez@ti.com>)
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* sdp3430 (Author: Misael Lopez Cruz <misael.lopez@ti.com>)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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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 = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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struct snd_soc_codec *codec = rtd->codec;
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struct snd_soc_card *card = codec->card;
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unsigned int fmt;
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int ret;
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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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/* Set codec DAI configuration */
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ret = snd_soc_dai_set_fmt(codec_dai, fmt);
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if (ret < 0) {
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dev_err(card->dev, "can't set codec DAI configuration\n");
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return ret;
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}
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/* Set cpu DAI configuration */
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ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
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if (ret < 0) {
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dev_err(card->dev, "can't set cpu DAI configuration\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_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_codec *codec = rtd->codec;
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struct snd_soc_card *card = codec->card;
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struct snd_soc_dapm_context *dapm = &codec->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_jack_new(codec, "Headset Jack", SND_JACK_HEADSET,
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&priv->hs_jack);
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if (ret)
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return ret;
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ret = snd_soc_jack_add_pins(&priv->hs_jack,
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ARRAY_SIZE(hs_jack_pins),
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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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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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.cpu_dai_name = "omap-mcbsp.2",
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.codec_dai_name = "twl4030-hifi",
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.platform_name = "omap-pcm-audio",
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.codec_name = "twl4030-codec",
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.init = omap_twl4030_init,
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.ops = &omap_twl4030_ops,
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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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.cpu_dai_name = "omap-mcbsp.3",
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.codec_dai_name = "twl4030-voice",
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.platform_name = "omap-pcm-audio",
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.codec_name = "twl4030-codec",
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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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},
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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].cpu_dai_name = NULL;
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omap_twl4030_dai_links[0].cpu_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].cpu_dai_name = NULL;
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omap_twl4030_dai_links[1].cpu_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 = snd_soc_register_card(card);
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if (ret) {
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dev_err(&pdev->dev, "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 int omap_twl4030_remove(struct platform_device *pdev)
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{
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struct snd_soc_card *card = platform_get_drvdata(pdev);
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struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card);
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if (priv->jack_detect > 0)
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snd_soc_jack_free_gpios(&priv->hs_jack,
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ARRAY_SIZE(hs_jack_gpios),
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hs_jack_gpios);
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snd_soc_unregister_card(card);
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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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.owner = THIS_MODULE,
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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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.remove = omap_twl4030_remove,
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};
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module_platform_driver(omap_twl4030_driver);
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MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
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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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