mirror of https://github.com/OpenIPC/firmware.git
84 lines
2.4 KiB
Diff
84 lines
2.4 KiB
Diff
diff -drupN a/sound/soc/sunxi/spdif-utils.c b/sound/soc/sunxi/spdif-utils.c
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--- a/sound/soc/sunxi/spdif-utils.c 1970-01-01 03:00:00.000000000 +0300
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+++ b/sound/soc/sunxi/spdif-utils.c 2022-06-12 05:28:14.000000000 +0300
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@@ -0,0 +1,79 @@
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+/*
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+ * ALSA SoC SPDIF DIT driver
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+ *
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+ * This driver is used by controllers which can operate in DIT (SPDI/F) where
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+ * no codec is needed. This file provides stub codec that can be used
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+ * in these configurations. TI DaVinci Audio controller uses this driver.
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+ *
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+ * Author: Steve Chen, <schen@mvista.com>
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+ * Copyright: (C) 2009 MontaVista Software, Inc., <source@mvista.com>
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+ * Copyright: (C) 2009 Texas Instruments, India
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * published by the Free Software Foundation.
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/moduleparam.h>
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+#include <linux/slab.h>
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+#include <sound/soc.h>
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+#include <sound/pcm.h>
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+#include <sound/initval.h>
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+
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+#define DRV_NAME "spdif-utils"
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+
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+#define STUB_RATES (SNDRV_PCM_RATE_8000_192000 | SNDRV_PCM_RATE_KNOT)
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+#define STUB_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
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+ SNDRV_PCM_FMTBIT_S20_3LE | \
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+ SNDRV_PCM_FMTBIT_S24_LE | \
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+ SNDRV_PCM_FMTBIT_S32_LE | \
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+ SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
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+
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+static struct snd_soc_codec_driver soc_codec_spdif_utils;
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+
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+static struct snd_soc_dai_driver spdif_stub_dai = {
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+ .name = "spdif-hifi",
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+ .playback = {
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+ .stream_name = "Playback",
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+ .channels_min = 1,
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+ .channels_max = 384,
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+ .rates = STUB_RATES,
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+ .formats = STUB_FORMATS,
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+ },
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+ .capture = {
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+ .stream_name = "Capture",
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+ .channels_min = 1,
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+ .channels_max = 384,
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+ .rates = STUB_RATES,
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+ .formats = STUB_FORMATS,
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+ },
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+};
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+
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+static int spdif_utils_probe(struct platform_device *pdev)
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+{
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+ return snd_soc_register_codec(&pdev->dev, &soc_codec_spdif_utils,
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+ &spdif_stub_dai, 1);
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+}
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+
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+static int spdif_utils_remove(struct platform_device *pdev)
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+{
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+ snd_soc_unregister_codec(&pdev->dev);
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+ return 0;
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+}
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+
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+static struct platform_driver spdif_utils_driver = {
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+ .probe = spdif_utils_probe,
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+ .remove = spdif_utils_remove,
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+ .driver = {
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+ .name = DRV_NAME,
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+ .owner = THIS_MODULE,
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+ },
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+};
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+
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+module_platform_driver(spdif_utils_driver);
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+
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+MODULE_AUTHOR("Steve Chen <schen@mvista.com>");
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+MODULE_DESCRIPTION("SPDIF dummy codec driver");
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+MODULE_LICENSE("GPL");
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+MODULE_ALIAS("platform:" DRV_NAME);
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