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-rw-r--r--sound/soc/cirrus/snappercl15.c146
1 files changed, 146 insertions, 0 deletions
diff --git a/sound/soc/cirrus/snappercl15.c b/sound/soc/cirrus/snappercl15.c
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index 000000000000..a193cea3cf3c
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+++ b/sound/soc/cirrus/snappercl15.c
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+/*
+ * snappercl15.c -- SoC audio for Bluewater Systems Snapper CL15 module
+ *
+ * Copyright (C) 2008 Bluewater Systems Ltd
+ * Author: Ryan Mallon
+ *
+ * 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/platform_device.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+
+#include "../codecs/tlv320aic23.h"
+#include "ep93xx-pcm.h"
+
+#define CODEC_CLOCK 5644800
+
+static int snappercl15_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_dai *cpu_dai = rtd->cpu_dai;
+ int err;
+
+ err = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK,
+ SND_SOC_CLOCK_IN);
+ if (err)
+ return err;
+
+ err = snd_soc_dai_set_sysclk(cpu_dai, 0, CODEC_CLOCK,
+ SND_SOC_CLOCK_OUT);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+static struct snd_soc_ops snappercl15_ops = {
+ .hw_params = snappercl15_hw_params,
+};
+
+static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_LINE("Line In", NULL),
+ SND_SOC_DAPM_MIC("Mic Jack", NULL),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+ {"Headphone Jack", NULL, "LHPOUT"},
+ {"Headphone Jack", NULL, "RHPOUT"},
+
+ {"LLINEIN", NULL, "Line In"},
+ {"RLINEIN", NULL, "Line In"},
+
+ {"MICIN", NULL, "Mic Jack"},
+};
+
+static int snappercl15_tlv320aic23_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+ snd_soc_dapm_new_controls(dapm, tlv320aic23_dapm_widgets,
+ ARRAY_SIZE(tlv320aic23_dapm_widgets));
+
+ snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
+ return 0;
+}
+
+static struct snd_soc_dai_link snappercl15_dai = {
+ .name = "tlv320aic23",
+ .stream_name = "AIC23",
+ .cpu_dai_name = "ep93xx-i2s",
+ .codec_dai_name = "tlv320aic23-hifi",
+ .codec_name = "tlv320aic23-codec.0-001a",
+ .platform_name = "ep93xx-pcm-audio",
+ .init = snappercl15_tlv320aic23_init,
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_IF |
+ SND_SOC_DAIFMT_CBS_CFS,
+ .ops = &snappercl15_ops,
+};
+
+static struct snd_soc_card snd_soc_snappercl15 = {
+ .name = "Snapper CL15",
+ .owner = THIS_MODULE,
+ .dai_link = &snappercl15_dai,
+ .num_links = 1,
+};
+
+static int __devinit snappercl15_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &snd_soc_snappercl15;
+ int ret;
+
+ ret = ep93xx_i2s_acquire();
+ if (ret)
+ return 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);
+ ep93xx_i2s_release();
+ }
+
+ return ret;
+}
+
+static int __devexit snappercl15_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_card(card);
+ ep93xx_i2s_release();
+
+ return 0;
+}
+
+static struct platform_driver snappercl15_driver = {
+ .driver = {
+ .name = "snappercl15-audio",
+ .owner = THIS_MODULE,
+ },
+ .probe = snappercl15_probe,
+ .remove = __devexit_p(snappercl15_remove),
+};
+
+module_platform_driver(snappercl15_driver);
+
+MODULE_AUTHOR("Ryan Mallon");
+MODULE_DESCRIPTION("ALSA SoC Snapper CL15");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:snappercl15-audio");