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Diffstat (limited to '')
| -rw-r--r-- | sound/soc/omap/omap-abe-twl6040.c | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/sound/soc/omap/omap-abe-twl6040.c b/sound/soc/omap/omap-abe-twl6040.c new file mode 100644 index 000000000..fed45b41f --- /dev/null +++ b/sound/soc/omap/omap-abe-twl6040.c @@ -0,0 +1,353 @@ +/* + * omap-abe-twl6040.c -- SoC audio for TI OMAP based boards with ABE and + * twl6040 codec + * + * Author: Misael Lopez Cruz <misael.lopez@ti.com> + * + * 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 <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/mfd/twl6040.h> +#include <linux/module.h> +#include <linux/of.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/jack.h> + +#include "omap-dmic.h" +#include "omap-mcpdm.h" +#include "../codecs/twl6040.h" + +struct abe_twl6040 { + struct snd_soc_card card; + struct snd_soc_dai_link dai_links[2]; + int jack_detection; /* board can detect jack events */ + int mclk_freq; /* MCLK frequency speed for twl6040 */ +}; + +static 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_card *card = rtd->card; + struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card); + int clk_id, freq; + int ret; + + clk_id = twl6040_get_clk_id(codec_dai->component); + 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 const 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_component *component = rtd->codec_dai->component; + struct snd_soc_card *card = rtd->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(component, 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_card_jack_new(rtd->card, "Headset Jack", + SND_JACK_HEADSET, &hs_jack, + hs_jack_pins, + ARRAY_SIZE(hs_jack_pins)); + if (ret) + return ret; + + twl6040_hs_jack_detect(component, &hs_jack, SND_JACK_HEADSET); + } + + return 0; +} + +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)); +} + +static int omap_abe_probe(struct platform_device *pdev) +{ + struct device_node *node = pdev->dev.of_node; + struct snd_soc_card *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; + } + + priv = devm_kzalloc(&pdev->dev, sizeof(struct abe_twl6040), GFP_KERNEL); + if (priv == NULL) + return -ENOMEM; + + card = &priv->card; + card->dev = &pdev->dev; + card->owner = THIS_MODULE; + card->dapm_widgets = twl6040_dapm_widgets; + card->num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets); + card->dapm_routes = audio_map; + card->num_dapm_routes = ARRAY_SIZE(audio_map); + + 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; + } + + priv->dai_links[0].name = "DMIC"; + priv->dai_links[0].stream_name = "TWL6040"; + priv->dai_links[0].cpu_of_node = dai_node; + priv->dai_links[0].platform_of_node = dai_node; + priv->dai_links[0].codec_dai_name = "twl6040-legacy"; + priv->dai_links[0].codec_name = "twl6040-codec"; + priv->dai_links[0].init = omap_abe_twl6040_init; + priv->dai_links[0].ops = &omap_abe_ops; + + dai_node = of_parse_phandle(node, "ti,dmic", 0); + if (dai_node) { + num_links = 2; + priv->dai_links[1].name = "TWL6040"; + priv->dai_links[1].stream_name = "DMIC Capture"; + priv->dai_links[1].cpu_of_node = dai_node; + priv->dai_links[1].platform_of_node = dai_node; + priv->dai_links[1].codec_dai_name = "dmic-hifi"; + priv->dai_links[1].codec_name = "dmic-codec"; + priv->dai_links[1].init = omap_abe_dmic_init; + priv->dai_links[1].ops = &omap_abe_dmic_ops; + } 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"); + return -EINVAL; + } + + card->fully_routed = 1; + + if (!priv->mclk_freq) { + dev_err(&pdev->dev, "MCLK frequency missing\n"); + return -ENODEV; + } + + card->dai_link = priv->dai_links; + card->num_links = num_links; + + snd_soc_card_set_drvdata(card, priv); + + ret = devm_snd_soc_register_card(&pdev->dev, card); + if (ret) + dev_err(&pdev->dev, "devm_snd_soc_register_card() failed: %d\n", + ret); + + return ret; +} + +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", + .pm = &snd_soc_pm_ops, + .of_match_table = omap_abe_of_match, + }, + .probe = omap_abe_probe, +}; + +static int __init omap_abe_init(void) +{ + int ret; + + dmic_codec_dev = platform_device_register_simple("dmic-codec", -1, NULL, + 0); + if (IS_ERR(dmic_codec_dev)) { + pr_err("%s: dmic-codec device registration failed\n", __func__); + return PTR_ERR(dmic_codec_dev); + } + + ret = platform_driver_register(&omap_abe_driver); + if (ret) { + pr_err("%s: platform driver registration failed\n", __func__); + platform_device_unregister(dmic_codec_dev); + } + + return ret; +} +module_init(omap_abe_init); + +static void __exit omap_abe_exit(void) +{ + platform_driver_unregister(&omap_abe_driver); + platform_device_unregister(dmic_codec_dev); +} +module_exit(omap_abe_exit); + +MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>"); +MODULE_DESCRIPTION("ALSA SoC for OMAP boards with ABE and twl6040 codec"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:omap-abe-twl6040"); |