/* * sdp4430.c -- SoC audio for TI OMAP4430 SDP * * Author: Misael Lopez Cruz * * 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 #include "omap-dmic.h" #include "omap-mcpdm.h" #include "omap-pcm.h" #include "../codecs/twl6040.h" static int sdp4430_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 clk_id, freq; int ret; clk_id = twl6040_get_clk_id(rtd->codec); if (clk_id == TWL6040_SYSCLK_SEL_HPPLL) freq = 38400000; else if (clk_id == TWL6040_SYSCLK_SEL_LPPLL) freq = 32768; else return -EINVAL; /* set the codec mclk */ ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq, SND_SOC_CLOCK_IN); if (ret) { printk(KERN_ERR "can't set codec system clock\n"); return ret; } return ret; } static struct snd_soc_ops sdp4430_ops = { .hw_params = sdp4430_hw_params, }; static int sdp4430_dmic_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 *cpu_dai = rtd->cpu_dai; int ret = 0; ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_DMIC_SYSCLK_PAD_CLKS, 19200000, SND_SOC_CLOCK_IN); if (ret < 0) { printk(KERN_ERR "can't set DMIC cpu system clock\n"); return ret; } ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_DMIC_ABE_DMIC_CLK, 2400000, SND_SOC_CLOCK_OUT); if (ret < 0) { printk(KERN_ERR "can't set DMIC output clock\n"); return ret; } return 0; } static struct snd_soc_ops sdp4430_dmic_ops = { .hw_params = sdp4430_dmic_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, }, }; /* SDP4430 machine DAPM */ static const struct snd_soc_dapm_widget sdp4430_twl6040_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), SND_SOC_DAPM_SPK("Earphone Spk", NULL), SND_SOC_DAPM_INPUT("FM Stereo In"), }; static const struct snd_soc_dapm_route audio_map[] = { /* External Mics: MAINMIC, SUBMIC with bias*/ {"MAINMIC", NULL, "Main Mic Bias"}, {"SUBMIC", NULL, "Main Mic Bias"}, {"Main Mic Bias", 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"}, /* Earphone speaker */ {"Earphone Spk", NULL, "EP"}, /* Aux/FM Stereo In: AFML, AFMR */ {"AFML", NULL, "FM Stereo In"}, {"AFMR", NULL, "FM Stereo In"}, }; static int sdp4430_twl6040_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; int ret, hs_trim; /* * Configure McPDM offset cancellation based on the HSOTRIM value from * twl6040. */ hs_trim = twl6040_get_trim_value(codec, TWL6040_TRIM_HSOTRIM); omap_mcpdm_configure_dn_offsets(rtd, TWL6040_HSF_TRIM_LEFT(hs_trim), TWL6040_HSF_TRIM_RIGHT(hs_trim)); /* 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 (machine_is_omap_4430sdp()) twl6040_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADSET); else snd_soc_jack_report(&hs_jack, SND_JACK_HEADSET, SND_JACK_HEADSET); return ret; } static const struct snd_soc_dapm_widget sdp4430_dmic_dapm_widgets[] = { SND_SOC_DAPM_MIC("Digital Mic", NULL), }; static const struct snd_soc_dapm_route dmic_audio_map[] = { {"DMic", NULL, "Digital Mic1 Bias"}, {"Digital Mic1 Bias", NULL, "Digital Mic"}, }; static int sdp4430_dmic_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; struct snd_soc_dapm_context *dapm = &codec->dapm; int ret; ret = snd_soc_dapm_new_controls(dapm, sdp4430_dmic_dapm_widgets, ARRAY_SIZE(sdp4430_dmic_dapm_widgets)); if (ret) return ret; return snd_soc_dapm_add_routes(dapm, dmic_audio_map, ARRAY_SIZE(dmic_audio_map)); } /* Digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link sdp4430_dai[] = { { .name = "TWL6040", .stream_name = "TWL6040", .cpu_dai_name = "omap-mcpdm", .codec_dai_name = "twl6040-legacy", .platform_name = "omap-pcm-audio", .codec_name = "twl6040-codec", .init = sdp4430_twl6040_init, .ops = &sdp4430_ops, }, { .name = "DMIC", .stream_name = "DMIC Capture", .cpu_dai_name = "omap-dmic", .codec_dai_name = "dmic-hifi", .platform_name = "omap-pcm-audio", .codec_name = "dmic-codec", .init = sdp4430_dmic_init, .ops = &sdp4430_dmic_ops, }, }; /* Audio machine driver */ static struct snd_soc_card snd_soc_sdp4430 = { .name = "SDP4430", .dai_link = sdp4430_dai, .num_links = ARRAY_SIZE(sdp4430_dai), .dapm_widgets = sdp4430_twl6040_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(sdp4430_twl6040_dapm_widgets), .dapm_routes = audio_map, .num_dapm_routes = ARRAY_SIZE(audio_map), }; static struct platform_device *sdp4430_snd_device; static int __init sdp4430_soc_init(void) { int ret; if (!machine_is_omap_4430sdp()) return -ENODEV; printk(KERN_INFO "SDP4430 SoC init\n"); sdp4430_snd_device = platform_device_alloc("soc-audio", -1); if (!sdp4430_snd_device) { printk(KERN_ERR "Platform device allocation failed\n"); return -ENOMEM; } platform_set_drvdata(sdp4430_snd_device, &snd_soc_sdp4430); ret = platform_device_add(sdp4430_snd_device); if (ret) goto err; return 0; err: printk(KERN_ERR "Unable to add platform device\n"); platform_device_put(sdp4430_snd_device); return ret; } module_init(sdp4430_soc_init); static void __exit sdp4430_soc_exit(void) { platform_device_unregister(sdp4430_snd_device); } module_exit(sdp4430_soc_exit); MODULE_AUTHOR("Misael Lopez Cruz "); MODULE_DESCRIPTION("ALSA SoC SDP4430"); MODULE_LICENSE("GPL");