1 files changed, 229 insertions, 0 deletions

diff --git a/sound/soc/intel/boards/byt-rt5640.c b/sound/soc/intel/boards/byt-rt5640.c
new file mode 100644
index 000000000000..ae89b9b966d9
--- /dev/null
+++ b/sound/soc/intel/boards/byt-rt5640.c
@@ -0,0 +1,229 @@
+/*
+ * Intel Baytrail SST RT5640 machine driver
+ * Copyright (c) 2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/dmi.h>
+#include <linux/slab.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include "../../codecs/rt5640.h"
+
+#include "../common/sst-dsp.h"
+
+static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
+        SND_SOC_DAPM_HP("Headphone", NULL),
+        SND_SOC_DAPM_MIC("Headset Mic", NULL),
+        SND_SOC_DAPM_MIC("Internal Mic", NULL),
+        SND_SOC_DAPM_SPK("Speaker", NULL),
+};
+
+static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
+        {"Headset Mic", NULL, "MICBIAS1"},
+        {"IN2P", NULL, "Headset Mic"},
+        {"Headphone", NULL, "HPOL"},
+        {"Headphone", NULL, "HPOR"},
+        {"Speaker", NULL, "SPOLP"},
+        {"Speaker", NULL, "SPOLN"},
+        {"Speaker", NULL, "SPORP"},
+        {"Speaker", NULL, "SPORN"},
+};
+
+static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
+        {"DMIC1", NULL, "Internal Mic"},
+};
+
+static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
+        {"DMIC2", NULL, "Internal Mic"},
+};
+
+static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
+        {"Internal Mic", NULL, "MICBIAS1"},
+        {"IN1P", NULL, "Internal Mic"},
+};
+
+enum {
+        BYT_RT5640_DMIC1_MAP,
+        BYT_RT5640_DMIC2_MAP,
+        BYT_RT5640_IN1_MAP,
+};
+
+#define BYT_RT5640_MAP(quirk)   ((quirk) & 0xff)
+#define BYT_RT5640_DMIC_EN      BIT(16)
+
+static unsigned long byt_rt5640_quirk = BYT_RT5640_DMIC1_MAP |
+                                        BYT_RT5640_DMIC_EN;
+
+static const struct snd_kcontrol_new byt_rt5640_controls[] = {
+        SOC_DAPM_PIN_SWITCH("Headphone"),
+        SOC_DAPM_PIN_SWITCH("Headset Mic"),
+        SOC_DAPM_PIN_SWITCH("Internal Mic"),
+        SOC_DAPM_PIN_SWITCH("Speaker"),
+};
+
+static int byt_rt5640_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;
+
+        ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
+                                     params_rate(params) * 256,
+                                     SND_SOC_CLOCK_IN);
+        if (ret < 0) {
+                dev_err(codec_dai->dev, "can't set codec clock %d\n", ret);
+                return ret;
+        }
+        ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1,
+                                  params_rate(params) * 64,
+                                  params_rate(params) * 256);
+        if (ret < 0) {
+                dev_err(codec_dai->dev, "can't set codec pll: %d\n", ret);
+                return ret;
+        }
+        return 0;
+}
+
+static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
+{
+        byt_rt5640_quirk = (unsigned long)id->driver_data;
+        return 1;
+}
+
+static const struct dmi_system_id byt_rt5640_quirk_table[] = {
+        {
+                .callback = byt_rt5640_quirk_cb,
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "T100TA"),
+                },
+                .driver_data = (unsigned long *)BYT_RT5640_IN1_MAP,
+        },
+        {
+                .callback = byt_rt5640_quirk_cb,
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "DellInc."),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
+                },
+                .driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP |
+                                                 BYT_RT5640_DMIC_EN),
+        },
+        {}
+};
+
+static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
+{
+        int ret;
+        struct snd_soc_codec *codec = runtime->codec;
+        struct snd_soc_card *card = runtime->card;
+        const struct snd_soc_dapm_route *custom_map;
+        int num_routes;
+
+        card->dapm.idle_bias_off = true;
+
+        ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
+                                        ARRAY_SIZE(byt_rt5640_controls));
+        if (ret) {
+                dev_err(card->dev, "unable to add card controls\n");
+                return ret;
+        }
+
+        dmi_check_system(byt_rt5640_quirk_table);
+        switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
+        case BYT_RT5640_IN1_MAP:
+                custom_map = byt_rt5640_intmic_in1_map;
+                num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
+                break;
+        case BYT_RT5640_DMIC2_MAP:
+                custom_map = byt_rt5640_intmic_dmic2_map;
+                num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
+                break;
+        default:
+                custom_map = byt_rt5640_intmic_dmic1_map;
+                num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
+        }
+
+        ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
+        if (ret)
+                return ret;
+
+        if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
+                ret = rt5640_dmic_enable(codec, 0, 0);
+                if (ret)
+                        return ret;
+        }
+
+        snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
+        snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
+
+        return ret;
+}
+
+static struct snd_soc_ops byt_rt5640_ops = {
+        .hw_params = byt_rt5640_hw_params,
+};
+
+static struct snd_soc_dai_link byt_rt5640_dais[] = {
+        {
+                .name = "Baytrail Audio",
+                .stream_name = "Audio",
+                .cpu_dai_name = "baytrail-pcm-audio",
+                .codec_dai_name = "rt5640-aif1",
+                .codec_name = "i2c-10EC5640:00",
+                .platform_name = "baytrail-pcm-audio",
+                .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+                           SND_SOC_DAIFMT_CBS_CFS,
+                .init = byt_rt5640_init,
+                .ops = &byt_rt5640_ops,
+        },
+};
+
+static struct snd_soc_card byt_rt5640_card = {
+        .name = "byt-rt5640",
+        .dai_link = byt_rt5640_dais,
+        .num_links = ARRAY_SIZE(byt_rt5640_dais),
+        .dapm_widgets = byt_rt5640_widgets,
+        .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
+        .dapm_routes = byt_rt5640_audio_map,
+        .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
+        .fully_routed = true,
+};
+
+static int byt_rt5640_probe(struct platform_device *pdev)
+{
+        struct snd_soc_card *card = &byt_rt5640_card;
+
+        card->dev = &pdev->dev;
+        return devm_snd_soc_register_card(&pdev->dev, card);
+}
+
+static struct platform_driver byt_rt5640_audio = {
+        .probe = byt_rt5640_probe,
+        .driver = {
+                .name = "byt-rt5640",
+                .pm = &snd_soc_pm_ops,
+        },
+};
+module_platform_driver(byt_rt5640_audio)
+
+MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver");
+MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:byt-rt5640");