--- /dev/null
+/*
+ * 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 {
+ 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_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(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 = 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(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_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(codec, &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));
+}
+
+/* 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",
+ .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 <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");
Code Review / kvmfornfv.git / blobdiff