Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / sound / soc / fsl / imx-pcm.h

diff --git a/kernel/sound/soc/fsl/imx-pcm.h b/kernel/sound/soc/fsl/imx-pcm.h
new file mode 100644 (file)
index 0000000..c79cb27
--- /dev/null
+++ b/kernel/sound/soc/fsl/imx-pcm.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * This code is based on code copyrighted by Freescale,
+ * Liam Girdwood, Javier Martin and probably others.
+ *
+ * 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.
+ */
+
+#ifndef _IMX_PCM_H
+#define _IMX_PCM_H
+
+#include <linux/platform_data/dma-imx.h>
+
+/*
+ * Do not change this as the FIQ handler depends on this size
+ */
+#define IMX_SSI_DMABUF_SIZE    (64 * 1024)
+
+static inline void
+imx_pcm_dma_params_init_data(struct imx_dma_data *dma_data,
+       int dma, enum sdma_peripheral_type peripheral_type)
+{
+       dma_data->dma_request = dma;
+       dma_data->priority = DMA_PRIO_HIGH;
+       dma_data->peripheral_type = peripheral_type;
+}
+
+struct imx_pcm_fiq_params {
+       int irq;
+       void __iomem *base;
+
+       /* Pointer to original ssi driver to setup tx rx sizes */
+       struct snd_dmaengine_dai_dma_data *dma_params_rx;
+       struct snd_dmaengine_dai_dma_data *dma_params_tx;
+};
+
+#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_DMA)
+int imx_pcm_dma_init(struct platform_device *pdev);
+#else
+static inline int imx_pcm_dma_init(struct platform_device *pdev)
+{
+       return -ENODEV;
+}
+#endif
+
+#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_FIQ)
+int imx_pcm_fiq_init(struct platform_device *pdev,
+               struct imx_pcm_fiq_params *params);
+void imx_pcm_fiq_exit(struct platform_device *pdev);
+#else
+static inline int imx_pcm_fiq_init(struct platform_device *pdev,
+               struct imx_pcm_fiq_params *params)
+{
+       return -ENODEV;
+}
+
+static inline void imx_pcm_fiq_exit(struct platform_device *pdev)
+{
+}
+#endif
+
+#endif /* _IMX_PCM_H */