/* * omap-abe-twl6040.c -- SoC audio for TI OMAP based boards with ABE and * twl6040 codec * * 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 "omap-dmic.h" #include "omap-mcpdm.h" #include "../codecs/twl6040.h" struct abe_twl6040 { int jack_detection; /* board can detect jack events */ int mclk_freq; /* MCLK frequency speed for twl6040 */ struct platform_device *dmic_codec_dev; }; static int omap_abe_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; struct snd_soc_codec *codec = rtd->codec; struct snd_soc_card *card = codec->card; struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card); int clk_id, freq; int ret; clk_id = twl6040_get_clk_id(rtd->codec); if (clk_id == TWL6040_SYSCLK_SEL_HPPLL) freq = priv->mclk_freq; 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 omap_abe_ops = { .hw_params = omap_abe_hw_params, }; static int omap_abe_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 omap_abe_dmic_ops = { .hw_params = omap_abe_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 twl6040_dapm_widgets[] = { /* Outputs */ SND_SOC_DAPM_HP("Headset Stereophone", NULL), SND_SOC_DAPM_SPK("Earphone Spk", NULL), SND_SOC_DAPM_SPK("Ext Spk", NULL), SND_SOC_DAPM_LINE("Line Out", NULL), SND_SOC_DAPM_SPK("Vibrator", NULL), /* Inputs */ SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("Main Handset Mic", NULL), SND_SOC_DAPM_MIC("Sub Handset Mic", NULL), SND_SOC_DAPM_LINE("Line In", NULL), /* Digital microphones */ SND_SOC_DAPM_MIC("Digital Mic", NULL), }; static const struct snd_soc_dapm_route audio_map[] = { /* Routings for outputs */ {"Headset Stereophone", NULL, "HSOL"}, {"Headset Stereophone", NULL, "HSOR"}, {"Earphone Spk", NULL, "EP"}, {"Ext Spk", NULL, "HFL"}, {"Ext Spk", NULL, "HFR"}, {"Line Out", NULL, "AUXL"}, {"Line Out", NULL, "AUXR"}, {"Vibrator", NULL, "VIBRAL"}, {"Vibrator", NULL, "VIBRAR"}, /* Routings for inputs */ {"HSMIC", NULL, "Headset Mic"}, {"Headset Mic", NULL, "Headset Mic Bias"}, {"MAINMIC", NULL, "Main Handset Mic"}, {"Main Handset Mic", NULL, "Main Mic Bias"}, {"SUBMIC", NULL, "Sub Handset Mic"}, {"Sub Handset Mic", NULL, "Main Mic Bias"}, {"AFML", NULL, "Line In"}, {"AFMR", NULL, "Line In"}, }; static int omap_abe_twl6040_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; struct snd_soc_card *card = codec->card; struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card); int hs_trim; int ret = 0; /* * 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 only if it is supported */ if (priv->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); twl6040_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADSET); } return ret; } static const struct snd_soc_dapm_route dmic_audio_map[] = { {"DMic", NULL, "Digital Mic"}, {"Digital Mic", NULL, "Digital Mic1 Bias"}, }; static int omap_abe_dmic_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_dapm_context *dapm = &rtd->card->dapm; 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 abe_twl6040_dai_links[] = { { .name = "TWL6040", .stream_name = "TWL6040", .codec_dai_name = "twl6040-legacy", .codec_name = "twl6040-codec", .init = omap_abe_twl6040_init, .ops = &omap_abe_ops, }, { .name = "DMIC", .stream_name = "DMIC Capture", .codec_dai_name = "dmic-hifi", .codec_name = "dmic-codec", .init = omap_abe_dmic_init, .ops = &omap_abe_dmic_ops, }, }; /* Audio machine driver */ static struct snd_soc_card omap_abe_card = { .owner = THIS_MODULE, .dapm_widgets = twl6040_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets), .dapm_routes = audio_map, .num_dapm_routes = ARRAY_SIZE(audio_map), }; static int omap_abe_probe(struct platform_device *pdev) { struct device_node *node = pdev->dev.of_node; struct snd_soc_card *card = &omap_abe_card; struct device_node *dai_node; struct abe_twl6040 *priv; int num_links = 0; int ret = 0; if (!node) { dev_err(&pdev->dev, "of node is missing.\n"); return -ENODEV; } card->dev = &pdev->dev; priv = devm_kzalloc(&pdev->dev, sizeof(struct abe_twl6040), GFP_KERNEL); if (priv == NULL) return -ENOMEM; priv->dmic_codec_dev = ERR_PTR(-EINVAL); if (snd_soc_of_parse_card_name(card, "ti,model")) { dev_err(&pdev->dev, "Card name is not provided\n"); return -ENODEV; } ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing"); if (ret) { dev_err(&pdev->dev, "Error while parsing DAPM routing\n"); return ret; } dai_node = of_parse_phandle(node, "ti,mcpdm", 0); if (!dai_node) { dev_err(&pdev->dev, "McPDM node is not provided\n"); return -EINVAL; } abe_twl6040_dai_links[0].cpu_of_node = dai_node; abe_twl6040_dai_links[0].platform_of_node = dai_node; dai_node = of_parse_phandle(node, "ti,dmic", 0); if (dai_node) { num_links = 2; abe_twl6040_dai_links[1].cpu_of_node = dai_node; abe_twl6040_dai_links[1].platform_of_node = dai_node; priv->dmic_codec_dev = platform_device_register_simple( "dmic-codec", -1, NULL, 0); if (IS_ERR(priv->dmic_codec_dev)) { dev_err(&pdev->dev, "Can't instantiate dmic-codec\n"); return PTR_ERR(priv->dmic_codec_dev); } } else { num_links = 1; } priv->jack_detection = of_property_read_bool(node, "ti,jack-detection"); of_property_read_u32(node, "ti,mclk-freq", &priv->mclk_freq); if (!priv->mclk_freq) { dev_err(&pdev->dev, "MCLK frequency not provided\n"); ret = -EINVAL; goto err_unregister; } card->fully_routed = 1; if (!priv->mclk_freq) { dev_err(&pdev->dev, "MCLK frequency missing\n"); ret = -ENODEV; goto err_unregister; } card->dai_link = abe_twl6040_dai_links; card->num_links = num_links; snd_soc_card_set_drvdata(card, priv); ret = snd_soc_register_card(card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); goto err_unregister; } return 0; err_unregister: if (!IS_ERR(priv->dmic_codec_dev)) platform_device_unregister(priv->dmic_codec_dev); return ret; } static int omap_abe_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card); snd_soc_unregister_card(card); if (!IS_ERR(priv->dmic_codec_dev)) platform_device_unregister(priv->dmic_codec_dev); return 0; } static const struct of_device_id omap_abe_of_match[] = { {.compatible = "ti,abe-twl6040", }, { }, }; MODULE_DEVICE_TABLE(of, omap_abe_of_match); static struct platform_driver omap_abe_driver = { .driver = { .name = "omap-abe-twl6040", .owner = THIS_MODULE, .pm = &snd_soc_pm_ops, .of_match_table = omap_abe_of_match, }, .probe = omap_abe_probe, .remove = omap_abe_remove, }; module_platform_driver(omap_abe_driver); MODULE_AUTHOR("Misael Lopez Cruz "); MODULE_DESCRIPTION("ALSA SoC for OMAP boards with ABE and twl6040 codec"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:omap-abe-twl6040");