/* * sdp3430.c -- SoC audio for TI OMAP3430 SDP * * Author: Misael Lopez Cruz * * Based on: * Author: Steve Sakoman * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #include #include #include #include #include #include #include #include #include #include #include /* Register descriptions for twl4030 codec part */ #include #include #include "omap-mcbsp.h" #include "omap-pcm.h" /* TWL4030 PMBR1 Register */ #define TWL4030_INTBR_PMBR1 0x0D /* TWL4030 PMBR1 Register GPIO6 mux bit */ #define TWL4030_GPIO6_PWM0_MUTE(value) (value << 2) static struct snd_soc_card snd_soc_sdp3430; static int sdp3430_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->codec_dai; int ret; /* Set the codec system clock for DAC and ADC */ ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000, SND_SOC_CLOCK_IN); if (ret < 0) { printk(KERN_ERR "can't set codec system clock\n"); return ret; } return 0; } static struct snd_soc_ops sdp3430_ops = { .hw_params = sdp3430_hw_params, }; /* Headset jack */ static struct snd_soc_jack hs_jack; /* Headset jack detection DAPM pins */ static struct snd_soc_jack_pin hs_jack_pins[] = { { .pin = "Headset Mic", .mask = SND_JACK_MICROPHONE, }, { .pin = "Headset Stereophone", .mask = SND_JACK_HEADPHONE, }, }; /* Headset jack detection gpios */ static struct snd_soc_jack_gpio hs_jack_gpios[] = { { .gpio = (OMAP_MAX_GPIO_LINES + 2), .name = "hsdet-gpio", .report = SND_JACK_HEADSET, .debounce_time = 200, }, }; /* SDP3430 machine DAPM */ static const struct snd_soc_dapm_widget sdp3430_twl4030_dapm_widgets[] = { SND_SOC_DAPM_MIC("Ext Mic", NULL), SND_SOC_DAPM_SPK("Ext Spk", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_HP("Headset Stereophone", NULL), }; static const struct snd_soc_dapm_route audio_map[] = { /* External Mics: MAINMIC, SUBMIC with bias*/ {"MAINMIC", NULL, "Mic Bias 1"}, {"SUBMIC", NULL, "Mic Bias 2"}, {"Mic Bias 1", NULL, "Ext Mic"}, {"Mic Bias 2", NULL, "Ext Mic"}, /* External Speakers: HFL, HFR */ {"Ext Spk", NULL, "HFL"}, {"Ext Spk", NULL, "HFR"}, /* Headset Mic: HSMIC with bias */ {"HSMIC", NULL, "Headset Mic Bias"}, {"Headset Mic Bias", NULL, "Headset Mic"}, /* Headset Stereophone (Headphone): HSOL, HSOR */ {"Headset Stereophone", NULL, "HSOL"}, {"Headset Stereophone", NULL, "HSOR"}, }; static int sdp3430_twl4030_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; struct snd_soc_dapm_context *dapm = &codec->dapm; int ret; /* SDP3430 connected pins */ snd_soc_dapm_enable_pin(dapm, "Ext Mic"); snd_soc_dapm_enable_pin(dapm, "Ext Spk"); snd_soc_dapm_disable_pin(dapm, "Headset Mic"); snd_soc_dapm_disable_pin(dapm, "Headset Stereophone"); /* TWL4030 not connected pins */ snd_soc_dapm_nc_pin(dapm, "AUXL"); snd_soc_dapm_nc_pin(dapm, "AUXR"); snd_soc_dapm_nc_pin(dapm, "CARKITMIC"); snd_soc_dapm_nc_pin(dapm, "DIGIMIC0"); snd_soc_dapm_nc_pin(dapm, "DIGIMIC1"); snd_soc_dapm_nc_pin(dapm, "OUTL"); snd_soc_dapm_nc_pin(dapm, "OUTR"); snd_soc_dapm_nc_pin(dapm, "EARPIECE"); snd_soc_dapm_nc_pin(dapm, "PREDRIVEL"); snd_soc_dapm_nc_pin(dapm, "PREDRIVER"); snd_soc_dapm_nc_pin(dapm, "CARKITL"); snd_soc_dapm_nc_pin(dapm, "CARKITR"); /* Headset jack detection */ ret = snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET, &hs_jack); if (ret) return ret; ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins), hs_jack_pins); if (ret) return ret; ret = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios), hs_jack_gpios); return ret; } static int sdp3430_twl4030_voice_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; unsigned short reg; /* Enable voice interface */ reg = codec->driver->read(codec, TWL4030_REG_VOICE_IF); reg |= TWL4030_VIF_DIN_EN | TWL4030_VIF_DOUT_EN | TWL4030_VIF_EN; codec->driver->write(codec, TWL4030_REG_VOICE_IF, reg); return 0; } /* Digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link sdp3430_dai[] = { { .name = "TWL4030 I2S", .stream_name = "TWL4030 Audio", .cpu_dai_name = "omap-mcbsp-dai.1", .codec_dai_name = "twl4030-hifi", .platform_name = "omap-pcm-audio", .codec_name = "twl4030-codec", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, .init = sdp3430_twl4030_init, .ops = &sdp3430_ops, }, { .name = "TWL4030 PCM", .stream_name = "TWL4030 Voice", .cpu_dai_name = "omap-mcbsp-dai.2", .codec_dai_name = "twl4030-voice", .platform_name = "omap-pcm-audio", .codec_name = "twl4030-codec", .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBM_CFM, .init = sdp3430_twl4030_voice_init, .ops = &sdp3430_ops, }, }; /* Audio machine driver */ static struct snd_soc_card snd_soc_sdp3430 = { .name = "SDP3430", .owner = THIS_MODULE, .dai_link = sdp3430_dai, .num_links = ARRAY_SIZE(sdp3430_dai), .dapm_widgets = sdp3430_twl4030_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(sdp3430_twl4030_dapm_widgets), .dapm_routes = audio_map, .num_dapm_routes = ARRAY_SIZE(audio_map), }; static struct platform_device *sdp3430_snd_device; static int __init sdp3430_soc_init(void) { int ret; u8 pin_mux; if (!machine_is_omap_3430sdp()) return -ENODEV; printk(KERN_INFO "SDP3430 SoC init\n"); sdp3430_snd_device = platform_device_alloc("soc-audio", -1); if (!sdp3430_snd_device) { printk(KERN_ERR "Platform device allocation failed\n"); return -ENOMEM; } platform_set_drvdata(sdp3430_snd_device, &snd_soc_sdp3430); /* Set TWL4030 GPIO6 as EXTMUTE signal */ twl_i2c_read_u8(TWL4030_MODULE_INTBR, &pin_mux, TWL4030_INTBR_PMBR1); pin_mux &= ~TWL4030_GPIO6_PWM0_MUTE(0x03); pin_mux |= TWL4030_GPIO6_PWM0_MUTE(0x02); twl_i2c_write_u8(TWL4030_MODULE_INTBR, pin_mux, TWL4030_INTBR_PMBR1); ret = platform_device_add(sdp3430_snd_device); if (ret) goto err1; return 0; err1: printk(KERN_ERR "Unable to add platform device\n"); platform_device_put(sdp3430_snd_device); return ret; } module_init(sdp3430_soc_init); static void __exit sdp3430_soc_exit(void) { snd_soc_jack_free_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios), hs_jack_gpios); platform_device_unregister(sdp3430_snd_device); } module_exit(sdp3430_soc_exit); MODULE_AUTHOR("Misael Lopez Cruz "); MODULE_DESCRIPTION("ALSA SoC SDP3430"); MODULE_LICENSE("GPL");