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-/*
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- * sdp3430.c -- SoC audio for TI OMAP3430 SDP
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- *
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- * Author: Misael Lopez Cruz <x0052729@ti.com>
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- *
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- * Based on:
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- * Author: Steve Sakoman <steve@sakoman.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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-
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-#include <linux/clk.h>
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-#include <linux/platform_device.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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-
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-#include <asm/mach-types.h>
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-#include <linux/platform_data/gpio-omap.h>
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-
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-#include <linux/module.h>
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-
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-#include "omap-mcbsp.h"
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-#include "omap-pcm.h"
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-
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-static struct snd_soc_card snd_soc_sdp3430;
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-
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-static int sdp3430_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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- int ret;
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-
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- /* Set the codec system clock for DAC and ADC */
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- ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
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- SND_SOC_CLOCK_IN);
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- if (ret < 0) {
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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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-
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- return 0;
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-}
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-
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-static struct snd_soc_ops sdp3430_ops = {
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- .hw_params = sdp3430_hw_params,
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-};
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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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-
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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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-
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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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- .gpio = (OMAP_MAX_GPIO_LINES + 2),
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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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-
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-/* SDP3430 machine DAPM */
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-static const struct snd_soc_dapm_widget sdp3430_twl4030_dapm_widgets[] = {
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- SND_SOC_DAPM_MIC("Ext Mic", NULL),
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- SND_SOC_DAPM_SPK("Ext Spk", NULL),
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- SND_SOC_DAPM_MIC("Headset Mic", NULL),
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- SND_SOC_DAPM_HP("Headset Stereophone", NULL),
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-};
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-
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-static const struct snd_soc_dapm_route audio_map[] = {
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- /* External Mics: MAINMIC, SUBMIC with bias */
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- {"MAINMIC", NULL, "Ext Mic"},
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- {"SUBMIC", NULL, "Ext Mic"},
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- {"Ext Mic", NULL, "Mic Bias 1"},
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- {"Ext Mic", NULL, "Mic Bias 2"},
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-
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- /* External Speakers: HFL, HFR */
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- {"Ext Spk", NULL, "HFL"},
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- {"Ext Spk", NULL, "HFR"},
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-
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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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-
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- /* Headset Stereophone (Headphone): HSOL, HSOR */
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- {"Headset Stereophone", NULL, "HSOL"},
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- {"Headset Stereophone", NULL, "HSOR"},
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-};
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-
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-static int sdp3430_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_dapm_context *dapm = &codec->dapm;
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- int ret;
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-
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- /* SDP3430 connected pins */
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- snd_soc_dapm_enable_pin(dapm, "Ext Mic");
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- snd_soc_dapm_enable_pin(dapm, "Ext Spk");
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- snd_soc_dapm_disable_pin(dapm, "Headset Mic");
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- snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
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-
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- /* TWL4030 not connected pins */
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- snd_soc_dapm_nc_pin(dapm, "AUXL");
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- snd_soc_dapm_nc_pin(dapm, "AUXR");
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- snd_soc_dapm_nc_pin(dapm, "CARKITMIC");
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- snd_soc_dapm_nc_pin(dapm, "DIGIMIC0");
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- snd_soc_dapm_nc_pin(dapm, "DIGIMIC1");
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-
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- snd_soc_dapm_nc_pin(dapm, "OUTL");
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- snd_soc_dapm_nc_pin(dapm, "OUTR");
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- snd_soc_dapm_nc_pin(dapm, "EARPIECE");
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- snd_soc_dapm_nc_pin(dapm, "PREDRIVEL");
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- snd_soc_dapm_nc_pin(dapm, "PREDRIVER");
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- snd_soc_dapm_nc_pin(dapm, "CARKITL");
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- snd_soc_dapm_nc_pin(dapm, "CARKITR");
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-
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- /* Headset jack detection */
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- ret = snd_soc_jack_new(codec, "Headset Jack",
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- SND_JACK_HEADSET, &hs_jack);
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- if (ret)
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- return ret;
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-
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- ret = snd_soc_jack_add_pins(&hs_jack, 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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-
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- ret = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
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- hs_jack_gpios);
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-
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- return ret;
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-}
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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 sdp3430_dai[] = {
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- {
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- .name = "TWL4030 I2S",
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- .stream_name = "TWL4030 Audio",
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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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- .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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- SND_SOC_DAIFMT_CBM_CFM,
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- .init = sdp3430_twl4030_init,
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- .ops = &sdp3430_ops,
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- },
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- {
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- .name = "TWL4030 PCM",
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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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- .ops = &sdp3430_ops,
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- },
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-};
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-
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-/* Audio machine driver */
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-static struct snd_soc_card snd_soc_sdp3430 = {
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- .name = "SDP3430",
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- .owner = THIS_MODULE,
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- .dai_link = sdp3430_dai,
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- .num_links = ARRAY_SIZE(sdp3430_dai),
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-
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- .dapm_widgets = sdp3430_twl4030_dapm_widgets,
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- .num_dapm_widgets = ARRAY_SIZE(sdp3430_twl4030_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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-
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-static struct platform_device *sdp3430_snd_device;
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-
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-static int __init sdp3430_soc_init(void)
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-{
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- int ret;
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-
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- if (!machine_is_omap_3430sdp())
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- return -ENODEV;
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- printk(KERN_INFO "SDP3430 SoC init\n");
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-
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- sdp3430_snd_device = platform_device_alloc("soc-audio", -1);
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- if (!sdp3430_snd_device) {
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- printk(KERN_ERR "Platform device allocation failed\n");
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- return -ENOMEM;
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- }
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-
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- platform_set_drvdata(sdp3430_snd_device, &snd_soc_sdp3430);
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-
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- ret = platform_device_add(sdp3430_snd_device);
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- if (ret)
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- goto err1;
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-
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- return 0;
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-
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-err1:
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- printk(KERN_ERR "Unable to add platform device\n");
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- platform_device_put(sdp3430_snd_device);
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-
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- return ret;
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-}
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-module_init(sdp3430_soc_init);
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-
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-static void __exit sdp3430_soc_exit(void)
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-{
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- snd_soc_jack_free_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
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- hs_jack_gpios);
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-
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- platform_device_unregister(sdp3430_snd_device);
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-}
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-module_exit(sdp3430_soc_exit);
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-
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-MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
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-MODULE_DESCRIPTION("ALSA SoC SDP3430");
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-MODULE_LICENSE("GPL");
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-
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Peter Ujfalusi