1 files changed, 332 insertions, 0 deletions

diff --git a/sound/soc/samsung/speyside.c b/sound/soc/samsung/speyside.c
new file mode 100644
index 000000000000..360a333cb7c0
--- /dev/null
+++ b/sound/soc/samsung/speyside.c
@@ -0,0 +1,332 @@
+/*
+ * Speyside audio support
+ *
+ * Copyright 2011 Wolfson Microelectronics
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/jack.h>
+#include <linux/gpio.h>
+
+#include "../codecs/wm8915.h"
+#include "../codecs/wm9081.h"
+
+#define WM8915_HPSEL_GPIO 214
+
+static int speyside_set_bias_level(struct snd_soc_card *card,
+                                   enum snd_soc_bias_level level)
+{
+        struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
+        int ret;
+
+        switch (level) {
+        case SND_SOC_BIAS_STANDBY:
+                ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_MCLK1,
+                                             32768, SND_SOC_CLOCK_IN);
+                if (ret < 0)
+                        return ret;
+
+                ret = snd_soc_dai_set_pll(codec_dai, WM8915_FLL_MCLK1,
+                                          0, 0, 0);
+                if (ret < 0) {
+                        pr_err("Failed to stop FLL\n");
+                        return ret;
+                }
+
+        default:
+                break;
+        }
+
+        return 0;
+}
+
+static int speyside_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;
+        struct snd_soc_dai *codec_dai = rtd->codec_dai;
+        int ret;
+
+        ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
+                                         | SND_SOC_DAIFMT_NB_NF
+                                         | SND_SOC_DAIFMT_CBM_CFM);
+        if (ret < 0)
+                return ret;
+
+        ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
+                                         | SND_SOC_DAIFMT_NB_NF
+                                         | SND_SOC_DAIFMT_CBM_CFM);
+        if (ret < 0)
+                return ret;
+
+        ret = snd_soc_dai_set_pll(codec_dai, 0, WM8915_FLL_MCLK1,
+                                  32768, 256 * 48000);
+        if (ret < 0)
+                return ret;
+
+        ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_FLL,
+                                     256 * 48000, SND_SOC_CLOCK_IN);
+        if (ret < 0)
+                return ret;
+
+        return 0;
+}
+
+static struct snd_soc_ops speyside_ops = {
+        .hw_params = speyside_hw_params,
+};
+
+static struct snd_soc_jack speyside_headset;
+
+/* Headset jack detection DAPM pins */
+static struct snd_soc_jack_pin speyside_headset_pins[] = {
+        {
+                .pin = "Headset Mic",
+                .mask = SND_JACK_MICROPHONE,
+        },
+        {
+                .pin = "Headphone",
+                .mask = SND_JACK_HEADPHONE,
+        },
+};
+
+/* Default the headphone selection to active high */
+static int speyside_jack_polarity;
+
+static int speyside_get_micbias(struct snd_soc_dapm_widget *source,
+                                struct snd_soc_dapm_widget *sink)
+{
+        if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0))
+                return 1;
+        if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0))
+                return 1;
+
+        return 0;
+}
+
+static void speyside_set_polarity(struct snd_soc_codec *codec,
+                                  int polarity)
+{
+        speyside_jack_polarity = !polarity;
+        gpio_direction_output(WM8915_HPSEL_GPIO, speyside_jack_polarity);
+
+        /* Re-run DAPM to make sure we're using the correct mic bias */
+        snd_soc_dapm_sync(&codec->dapm);
+}
+
+static int speyside_wm8915_init(struct snd_soc_pcm_runtime *rtd)
+{
+        struct snd_soc_dai *dai = rtd->codec_dai;
+        struct snd_soc_codec *codec = rtd->codec;
+        int ret;
+
+        ret = snd_soc_dai_set_sysclk(dai, WM8915_SYSCLK_MCLK1, 32768, 0);
+        if (ret < 0)
+                return ret;
+
+        ret = gpio_request(WM8915_HPSEL_GPIO, "HP_SEL");
+        if (ret != 0)
+                pr_err("Failed to request HP_SEL GPIO: %d\n", ret);
+        gpio_direction_output(WM8915_HPSEL_GPIO, speyside_jack_polarity);
+
+        ret = snd_soc_jack_new(codec, "Headset",
+                               SND_JACK_HEADSET | SND_JACK_BTN_0,
+                               &speyside_headset);
+        if (ret)
+                return ret;
+
+        ret = snd_soc_jack_add_pins(&speyside_headset,
+                                    ARRAY_SIZE(speyside_headset_pins),
+                                    speyside_headset_pins);
+        if (ret)
+                return ret;
+
+        wm8915_detect(codec, &speyside_headset, speyside_set_polarity);
+
+        return 0;
+}
+
+static int speyside_late_probe(struct snd_soc_card *card)
+{
+        snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
+        snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
+        snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC");
+        snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC");
+        snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
+        snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output");
+        snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input");
+
+        return 0;
+}
+
+static struct snd_soc_dai_link speyside_dai[] = {
+        {
+                .name = "CPU",
+                .stream_name = "CPU",
+                .cpu_dai_name = "samsung-i2s.0",
+                .codec_dai_name = "wm8915-aif1",
+                .platform_name = "samsung-audio",
+                .codec_name = "wm8915.1-001a",
+                .init = speyside_wm8915_init,
+                .ops = &speyside_ops,
+        },
+        {
+                .name = "Baseband",
+                .stream_name = "Baseband",
+                .cpu_dai_name = "wm8915-aif2",
+                .codec_dai_name = "wm1250-ev1",
+                .codec_name = "wm1250-ev1.1-0027",
+                .ops = &speyside_ops,
+                .ignore_suspend = 1,
+        },
+};
+
+static int speyside_wm9081_init(struct snd_soc_dapm_context *dapm)
+{
+        snd_soc_dapm_nc_pin(dapm, "LINEOUT");
+
+        /* At any time the WM9081 is active it will have this clock */
+        return snd_soc_codec_set_sysclk(dapm->codec, WM9081_SYSCLK_MCLK,
+                                        48000 * 256, 0);
+}
+
+static struct snd_soc_aux_dev speyside_aux_dev[] = {
+        {
+                .name = "wm9081",
+                .codec_name = "wm9081.1-006c",
+                .init = speyside_wm9081_init,
+        },
+};
+
+static struct snd_soc_codec_conf speyside_codec_conf[] = {
+        {
+                .dev_name = "wm9081.1-006c",
+                .name_prefix = "Sub",
+        },
+};
+
+static const struct snd_kcontrol_new controls[] = {
+        SOC_DAPM_PIN_SWITCH("Main Speaker"),
+        SOC_DAPM_PIN_SWITCH("Main DMIC"),
+        SOC_DAPM_PIN_SWITCH("Main AMIC"),
+        SOC_DAPM_PIN_SWITCH("WM1250 Input"),
+        SOC_DAPM_PIN_SWITCH("WM1250 Output"),
+};
+
+static struct snd_soc_dapm_widget widgets[] = {
+        SND_SOC_DAPM_HP("Headphone", NULL),
+        SND_SOC_DAPM_MIC("Headset Mic", NULL),
+
+        SND_SOC_DAPM_SPK("Main Speaker", NULL),
+
+        SND_SOC_DAPM_MIC("Main AMIC", NULL),
+        SND_SOC_DAPM_MIC("Main DMIC", NULL),
+};
+
+static struct snd_soc_dapm_route audio_paths[] = {
+        { "IN1RN", NULL, "MICB1" },
+        { "IN1RP", NULL, "MICB1" },
+        { "IN1RN", NULL, "MICB2" },
+        { "IN1RP", NULL, "MICB2" },
+        { "MICB1", NULL, "Headset Mic", speyside_get_micbias },
+        { "MICB2", NULL, "Headset Mic", speyside_get_micbias },
+
+        { "IN1LP", NULL, "MICB2" },
+        { "IN1RN", NULL, "MICB1" },
+        { "MICB2", NULL, "Main AMIC" },
+
+        { "DMIC1DAT", NULL, "MICB1" },
+        { "DMIC2DAT", NULL, "MICB1" },
+        { "MICB1", NULL, "Main DMIC" },
+
+        { "Headphone", NULL, "HPOUT1L" },
+        { "Headphone", NULL, "HPOUT1R" },
+
+        { "Sub IN1", NULL, "HPOUT2L" },
+        { "Sub IN2", NULL, "HPOUT2R" },
+
+        { "Main Speaker", NULL, "Sub SPKN" },
+        { "Main Speaker", NULL, "Sub SPKP" },
+        { "Main Speaker", NULL, "SPKDAT" },
+};
+
+static struct snd_soc_card speyside = {
+        .name = "Speyside",
+        .dai_link = speyside_dai,
+        .num_links = ARRAY_SIZE(speyside_dai),
+        .aux_dev = speyside_aux_dev,
+        .num_aux_devs = ARRAY_SIZE(speyside_aux_dev),
+        .codec_conf = speyside_codec_conf,
+        .num_configs = ARRAY_SIZE(speyside_codec_conf),
+
+        .set_bias_level = speyside_set_bias_level,
+
+        .controls = controls,
+        .num_controls = ARRAY_SIZE(controls),
+        .dapm_widgets = widgets,
+        .num_dapm_widgets = ARRAY_SIZE(widgets),
+        .dapm_routes = audio_paths,
+        .num_dapm_routes = ARRAY_SIZE(audio_paths),
+
+        .late_probe = speyside_late_probe,
+};
+
+static __devinit int speyside_probe(struct platform_device *pdev)
+{
+        struct snd_soc_card *card = &speyside;
+        int ret;
+
+        card->dev = &pdev->dev;
+
+        ret = snd_soc_register_card(card);
+        if (ret) {
+                dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+                        ret);
+                return ret;
+        }
+
+        return 0;
+}
+
+static int __devexit speyside_remove(struct platform_device *pdev)
+{
+        struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+        snd_soc_unregister_card(card);
+
+        return 0;
+}
+
+static struct platform_driver speyside_driver = {
+        .driver = {
+                .name = "speyside",
+                .owner = THIS_MODULE,
+                .pm = &snd_soc_pm_ops,
+        },
+        .probe = speyside_probe,
+        .remove = __devexit_p(speyside_remove),
+};
+
+static int __init speyside_audio_init(void)
+{
+        return platform_driver_register(&speyside_driver);
+}
+module_init(speyside_audio_init);
+
+static void __exit speyside_audio_exit(void)
+{
+        platform_driver_unregister(&speyside_driver);
+}
+module_exit(speyside_audio_exit);
+
+MODULE_DESCRIPTION("Speyside audio support");
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:speyside");