1 files changed, 219 insertions, 0 deletions

diff --git a/sound/soc/pxa/zylonite.c b/sound/soc/pxa/zylonite.c
new file mode 100644
index 000000000000..842d6500d61f
--- /dev/null
+++ b/sound/soc/pxa/zylonite.c
@@ -0,0 +1,219 @@
+/*
+ * zylonite.c  --  SoC audio for Zylonite
+ *
+ * Copyright 2008 Wolfson Microelectronics PLC.
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * 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 <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+
+#include "../codecs/wm9713.h"
+#include "pxa2xx-pcm.h"
+#include "pxa2xx-ac97.h"
+#include "pxa-ssp.h"
+
+static struct snd_soc_card zylonite;
+
+static const struct snd_soc_dapm_widget zylonite_dapm_widgets[] = {
+        SND_SOC_DAPM_HP("Headphone", NULL),
+        SND_SOC_DAPM_MIC("Headset Microphone", NULL),
+        SND_SOC_DAPM_MIC("Handset Microphone", NULL),
+        SND_SOC_DAPM_SPK("Multiactor", NULL),
+        SND_SOC_DAPM_SPK("Headset Earpiece", NULL),
+};
+
+/* Currently supported audio map */
+static const struct snd_soc_dapm_route audio_map[] = {
+
+        /* Headphone output connected to HPL/HPR */
+        { "Headphone", NULL,  "HPL" },
+        { "Headphone", NULL,  "HPR" },
+
+        /* On-board earpiece */
+        { "Headset Earpiece", NULL, "OUT3" },
+
+        /* Headphone mic */
+        { "MIC2A", NULL, "Mic Bias" },
+        { "Mic Bias", NULL, "Headset Microphone" },
+
+        /* On-board mic */
+        { "MIC1", NULL, "Mic Bias" },
+        { "Mic Bias", NULL, "Handset Microphone" },
+
+        /* Multiactor differentially connected over SPKL/SPKR */
+        { "Multiactor", NULL, "SPKL" },
+        { "Multiactor", NULL, "SPKR" },
+};
+
+static int zylonite_wm9713_init(struct snd_soc_codec *codec)
+{
+        /* Currently we only support use of the AC97 clock here.  If
+         * CLK_POUT is selected by SW15 then the clock API will need
+         * to be used to request and enable it here.
+         */
+
+        snd_soc_dapm_new_controls(codec, zylonite_dapm_widgets,
+                                  ARRAY_SIZE(zylonite_dapm_widgets));
+
+        snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
+
+        /* Static setup for now */
+        snd_soc_dapm_enable_pin(codec, "Headphone");
+        snd_soc_dapm_enable_pin(codec, "Headset Earpiece");
+
+        snd_soc_dapm_sync(codec);
+        return 0;
+}
+
+static int zylonite_voice_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->dai->codec_dai;
+        struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+        unsigned int pll_out = 0;
+        unsigned int acds = 0;
+        unsigned int wm9713_div = 0;
+        int ret = 0;
+
+        switch (params_rate(params)) {
+        case 8000:
+                wm9713_div = 12;
+                pll_out = 2048000;
+                break;
+        case 16000:
+                wm9713_div = 6;
+                pll_out = 4096000;
+                break;
+        case 48000:
+        default:
+                wm9713_div = 2;
+                pll_out = 12288000;
+                acds = 1;
+                break;
+        }
+
+        ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+                SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
+        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_CBS_CFS);
+        if (ret < 0)
+                return ret;
+
+        ret = snd_soc_dai_set_tdm_slot(cpu_dai,
+                                       params_channels(params),
+                                       params_channels(params));
+        if (ret < 0)
+                return ret;
+
+        ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, pll_out);
+        if (ret < 0)
+                return ret;
+
+        ret = snd_soc_dai_set_clkdiv(cpu_dai, PXA_SSP_AUDIO_DIV_ACDS, acds);
+        if (ret < 0)
+                return ret;
+
+        ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0, 1);
+        if (ret < 0)
+                return ret;
+
+        /* Note that if the PLL is in use the WM9713_PCMCLK_PLL_DIV needs
+         * to be set instead.
+         */
+        ret = snd_soc_dai_set_clkdiv(codec_dai, WM9713_PCMCLK_DIV,
+                                     WM9713_PCMDIV(wm9713_div));
+        if (ret < 0)
+                return ret;
+
+        return 0;
+}
+
+static struct snd_soc_ops zylonite_voice_ops = {
+        .hw_params = zylonite_voice_hw_params,
+};
+
+static struct snd_soc_dai_link zylonite_dai[] = {
+{
+        .name = "AC97",
+        .stream_name = "AC97 HiFi",
+        .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
+        .codec_dai = &wm9713_dai[WM9713_DAI_AC97_HIFI],
+        .init = zylonite_wm9713_init,
+},
+{
+        .name = "AC97 Aux",
+        .stream_name = "AC97 Aux",
+        .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
+        .codec_dai = &wm9713_dai[WM9713_DAI_AC97_AUX],
+},
+{
+        .name = "WM9713 Voice",
+        .stream_name = "WM9713 Voice",
+        .cpu_dai = &pxa_ssp_dai[PXA_DAI_SSP3],
+        .codec_dai = &wm9713_dai[WM9713_DAI_PCM_VOICE],
+        .ops = &zylonite_voice_ops,
+},
+};
+
+static struct snd_soc_card zylonite = {
+        .name = "Zylonite",
+        .dai_link = zylonite_dai,
+        .num_links = ARRAY_SIZE(zylonite_dai),
+};
+
+static struct snd_soc_device zylonite_snd_ac97_devdata = {
+        .card = &zylonite,
+        .platform = &pxa2xx_soc_platform,
+        .codec_dev = &soc_codec_dev_wm9713,
+};
+
+static struct platform_device *zylonite_snd_ac97_device;
+
+static int __init zylonite_init(void)
+{
+        int ret;
+
+        zylonite_snd_ac97_device = platform_device_alloc("soc-audio", -1);
+        if (!zylonite_snd_ac97_device)
+                return -ENOMEM;
+
+        platform_set_drvdata(zylonite_snd_ac97_device,
+                             &zylonite_snd_ac97_devdata);
+        zylonite_snd_ac97_devdata.dev = &zylonite_snd_ac97_device->dev;
+
+        ret = platform_device_add(zylonite_snd_ac97_device);
+        if (ret != 0)
+                platform_device_put(zylonite_snd_ac97_device);
+
+        return ret;
+}
+
+static void __exit zylonite_exit(void)
+{
+        platform_device_unregister(zylonite_snd_ac97_device);
+}
+
+module_init(zylonite_init);
+module_exit(zylonite_exit);
+
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("ALSA SoC WM9713 Zylonite");
+MODULE_LICENSE("GPL");