5 files changed, 104 insertions, 4 deletions

diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig
index 37459dfd168d..27930fc432dc 100644
--- a/sound/soc/samsung/Kconfig
+++ b/sound/soc/samsung/Kconfig
@@ -1,13 +1,22 @@
 config SND_SOC_SAMSUNG
         tristate "ASoC support for Samsung"
         depends on PLAT_SAMSUNG
-        select S3C64XX_DMA if ARCH_S3C64XX
-        select S3C24XX_DMA if ARCH_S3C24XX
+        select S3C2410_DMA if ARCH_S3C24XX
+        select S3C64XX_PL080 if ARCH_S3C64XX
+        select SND_S3C_DMA if !ARCH_S3C24XX
+        select SND_S3C_DMA_LEGACY if ARCH_S3C24XX
+        select SND_SOC_GENERIC_DMAENGINE_PCM if !ARCH_S3C24XX
         help
           Say Y or M if you want to add support for codecs attached to
           the Samsung SoCs' Audio interfaces. You will also need to
           select the audio interfaces to support below.
 
+config SND_S3C_DMA
+        tristate
+
+config SND_S3C_DMA_LEGACY
+        tristate
+
 config SND_S3C24XX_I2S
         tristate
         select S3C2410_DMA
diff --git a/sound/soc/samsung/Makefile b/sound/soc/samsung/Makefile
index 709f6059ad67..86715d8efee6 100644
--- a/sound/soc/samsung/Makefile
+++ b/sound/soc/samsung/Makefile
@@ -1,5 +1,6 @@
 # S3c24XX Platform Support
-snd-soc-s3c24xx-objs := dma.o
+snd-soc-s3c-dma-objs := dmaengine.o
+snd-soc-s3c-dma-legacy-objs := dma.o
 snd-soc-idma-objs := idma.o
 snd-soc-s3c24xx-i2s-objs := s3c24xx-i2s.o
 snd-soc-s3c2412-i2s-objs := s3c2412-i2s.o
@@ -9,7 +10,8 @@ snd-soc-samsung-spdif-objs := spdif.o
 snd-soc-pcm-objs := pcm.o
 snd-soc-i2s-objs := i2s.o
 
-obj-$(CONFIG_SND_SOC_SAMSUNG) += snd-soc-s3c24xx.o
+obj-$(CONFIG_SND_S3C_DMA) += snd-soc-s3c-dma.o
+obj-$(CONFIG_SND_S3C_DMA_LEGACY) += snd-soc-s3c-dma-legacy.o
 obj-$(CONFIG_SND_S3C24XX_I2S) += snd-soc-s3c24xx-i2s.o
 obj-$(CONFIG_SND_SAMSUNG_AC97) += snd-soc-ac97.o
 obj-$(CONFIG_SND_S3C2412_SOC_I2S) += snd-soc-s3c2412-i2s.o
diff --git a/sound/soc/samsung/dma.h b/sound/soc/samsung/dma.h
index fb09a1c5f75b..225e5378014e 100644
--- a/sound/soc/samsung/dma.h
+++ b/sound/soc/samsung/dma.h
@@ -12,6 +12,8 @@
 #ifndef _S3C_AUDIO_H
 #define _S3C_AUDIO_H
 
+#include <sound/dmaengine_pcm.h>
+
 struct s3c_dma_params {
         struct s3c2410_dma_client *client;      /* stream identifier */
         int channel;                            /* Channel ID */
@@ -20,6 +22,7 @@ struct s3c_dma_params {
         unsigned ch;
         struct samsung_dma_ops *ops;
         char *ch_name;
+        struct snd_dmaengine_dai_dma_data dma_data;
 };
 
 void samsung_asoc_init_dma_data(struct snd_soc_dai *dai,
diff --git a/sound/soc/samsung/dmaengine.c b/sound/soc/samsung/dmaengine.c
new file mode 100644
index 000000000000..3be479d51b9b
--- /dev/null
+++ b/sound/soc/samsung/dmaengine.c
@@ -0,0 +1,84 @@
+/*
+ * dmaengine.c - Samsung dmaengine wrapper
+ *
+ * Author: Mark Brown <broonie@linaro.org>
+ * Copyright 2013 Linaro
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/amba/pl08x.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include "dma.h"
+
+#ifdef CONFIG_ARCH_S3C64XX
+#define filter_fn pl08x_filter_id
+#else
+#define filter_fn NULL
+#endif
+
+static const struct snd_dmaengine_pcm_config samsung_dmaengine_pcm_config = {
+        .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config,
+        .compat_filter_fn = filter_fn,
+};
+
+void samsung_asoc_init_dma_data(struct snd_soc_dai *dai,
+                                struct s3c_dma_params *playback,
+                                struct s3c_dma_params *capture)
+{
+        struct snd_dmaengine_dai_dma_data *playback_data = NULL;
+        struct snd_dmaengine_dai_dma_data *capture_data = NULL;
+
+        if (playback) {
+                playback_data = &playback->dma_data;
+                playback_data->filter_data = (void *)playback->channel;
+                playback_data->chan_name = playback->ch_name;
+                playback_data->addr = playback->dma_addr;
+                playback_data->addr_width = playback->dma_size;
+        }
+        if (capture) {
+                capture_data = &capture->dma_data;
+                capture_data->filter_data = (void *)capture->channel;
+                capture_data->chan_name = capture->ch_name;
+                capture_data->addr = capture->dma_addr;
+                capture_data->addr_width = capture->dma_size;
+        }
+
+        snd_soc_dai_init_dma_data(dai, playback_data, capture_data);
+}
+EXPORT_SYMBOL_GPL(samsung_asoc_init_dma_data);
+
+int samsung_asoc_dma_platform_register(struct device *dev)
+{
+        return snd_dmaengine_pcm_register(dev, &samsung_dmaengine_pcm_config,
+                                          SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME |
+                                          SND_DMAENGINE_PCM_FLAG_NO_RESIDUE |
+                                          SND_DMAENGINE_PCM_FLAG_COMPAT);
+}
+EXPORT_SYMBOL_GPL(samsung_asoc_dma_platform_register);
+
+void samsung_asoc_dma_platform_unregister(struct device *dev)
+{
+        return snd_dmaengine_pcm_unregister(dev);
+}
+EXPORT_SYMBOL_GPL(samsung_asoc_dma_platform_unregister);
+
+MODULE_AUTHOR("Mark Brown <broonie@linaro.org>");
+MODULE_DESCRIPTION("Samsung dmaengine ASoC driver");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index eab0050d4579..92f64363427d 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -702,6 +702,8 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
         }
         writel(mod, i2s->addr + I2SMOD);
 
+        samsung_asoc_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture);
+
         i2s->frmclk = params_rate(params);
 
         return 0;