ASoC: OMAP4: Add ABE DAI driver

Initial version of ABE DAI platform driver.

Signed-off-by: Misael Lopez Cruz <x0052729@ti.com>

4 files changed, 352 insertions, 3 deletions

diff --git a/sound/soc/omap/Kconfig b/sound/soc/omap/Kconfig
index cb50c0afdcf7..4d9cf19ea4d4 100644
--- a/sound/soc/omap/Kconfig
+++ b/sound/soc/omap/Kconfig
@@ -6,7 +6,7 @@ config SND_OMAP_SOC_MCBSP
 	tristate
 	select OMAP_MCBSP
 
-config SND_OMAP_SOC_MCPDM
+config SND_OMAP_SOC_ABE
 	tristate
 
 config SND_OMAP_SOC_N810
diff --git a/sound/soc/omap/Makefile b/sound/soc/omap/Makefile
index 7c5a00147c1d..408146187922 100644
--- a/sound/soc/omap/Makefile
+++ b/sound/soc/omap/Makefile
@@ -1,11 +1,11 @@
 # OMAP Platform Support
 snd-soc-omap-objs := omap-pcm.o
 snd-soc-omap-mcbsp-objs := omap-mcbsp.o
-snd-soc-omap-mcpdm-objs := mcpdm.o
+snd-soc-omap-abe-objs := mcpdm.o omap-abe.o
 
 obj-$(CONFIG_SND_OMAP_SOC) += snd-soc-omap.o
 obj-$(CONFIG_SND_OMAP_SOC_MCBSP) += snd-soc-omap-mcbsp.o
-obj-$(CONFIG_SND_OMAP_SOC_MCPDM) += snd-soc-omap-mcpdm.o
+obj-$(CONFIG_SND_OMAP_SOC_ABE) += snd-soc-omap-abe.o
 
 # OMAP Machine Support
 snd-soc-n810-objs := n810.o
diff --git a/sound/soc/omap/omap-abe.c b/sound/soc/omap/omap-abe.c
new file mode 100644
index 000000000000..c4b0eec35413
--- /dev/null
+++ b/sound/soc/omap/omap-abe.c
@@ -0,0 +1,314 @@
+/*
+ * omap-abe.c  --  OMAP ALSA SoC DAI driver using Audio Backend
+ *
+ * Copyright (C) 2009 Texas Instruments
+ *
+ * Contact: Misael Lopez Cruz <x0052729@ti.com>
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include <mach/control.h>
+#include <mach/dma.h>
+#include "mcpdm.h"
+#include "omap-pcm.h"
+#include "omap-abe.h"
+#include "../codecs/abe/abe_main.h"
+
+#define OMAP_ABE_FORMATS	(SNDRV_PCM_FMTBIT_S32_LE)
+
+struct omap_mcpdm_data {
+	struct omap_mcpdm_link *links;
+	int active;
+};
+
+static struct omap_mcpdm_link omap_mcpdm_links[] = {
+	/* downlink */
+	{
+		.irq_mask = DN_IRQ_EMTPY | DN_IRQ_FULL,
+		.threshold = 1,
+		.format = PDMOUTFORMAT_LJUST,
+		.channels = PDM_DN_MASK | PDM_CMD_MASK,
+	},
+	/* uplink */
+	{
+		.irq_mask = UP_IRQ_EMPTY | UP_IRQ_FULL,
+		.threshold = 1,
+		.format = PDMOUTFORMAT_LJUST,
+		.channels = PDM_UP_MASK | PDM_STATUS_MASK,
+	},
+};
+
+static struct omap_mcpdm_data mcpdm_data = {
+	.links = omap_mcpdm_links,
+	.active = 0,
+};
+
+/*
+ * Stream DMA parameters
+ */
+static struct omap_pcm_dma_data omap_abe_dai_dma_params[] = {
+	{
+		.name = "Audio downlink",
+		.dma_req = OMAP44XX_DMM_ABE_DMAREQ0,
+		.data_type = OMAP_DMA_DATA_TYPE_S32,
+		.sync_mode = OMAP_DMA_SYNC_PACKET,
+	},
+	{
+		.name = "Audio uplink",
+		.dma_req = OMAP44XX_DMM_ABE_DMAREQ2,
+		.data_type = OMAP_DMA_DATA_TYPE_S32,
+		.sync_mode = OMAP_DMA_SYNC_PACKET,
+	},
+};
+
+static int omap_abe_dai_startup(struct snd_pcm_substream *substream,
+				  struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+	int err = 0;
+
+	if (!cpu_dai->active)
+		err = omap_mcpdm_request();
+
+	return err;
+}
+
+static void omap_abe_dai_shutdown(struct snd_pcm_substream *substream,
+				    struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+
+	if (!cpu_dai->active)
+		omap_mcpdm_free();
+}
+
+static int omap_abe_dai_trigger(struct snd_pcm_substream *substream, int cmd,
+				  struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+	struct omap_mcpdm_data *mcpdm_priv = cpu_dai->private_data;
+	int stream = substream->stream;
+	int err = 0;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		if (!mcpdm_priv->active++)
+			omap_mcpdm_start(stream);
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		if (!--mcpdm_priv->active)
+			omap_mcpdm_stop(stream);
+		break;
+	default:
+		err = -EINVAL;
+	}
+
+	return err;
+}
+
+static int omap_abe_dai_hw_params(struct snd_pcm_substream *substream,
+				    struct snd_pcm_hw_params *params,
+				    struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+	struct omap_mcpdm_data *mcpdm_priv = cpu_dai->private_data;
+	struct omap_mcpdm_link *mcpdm_links = mcpdm_priv->links;
+	int err, stream = substream->stream;
+	abe_dma_t dma_params;
+
+	/* get abe dma data */
+	switch (cpu_dai->id) {
+	case OMAP_ABE_MM_DAI:
+		if (stream)
+			abe_read_port_address(MM_UL2_PORT, &dma_params);
+		else
+			abe_read_port_address(MM_DL_PORT, &dma_params);
+		break;
+	case OMAP_ABE_MM_EXT_DAI:
+		if (stream)
+			return -EINVAL;
+		else
+			abe_read_port_address(TONES_DL_PORT, &dma_params);
+		break;
+	case OMAP_ABE_VOICE_DAI:
+		if (stream)
+			abe_read_port_address(VX_UL_PORT, &dma_params);
+		else
+			abe_read_port_address(VX_DL_PORT, &dma_params);
+		break;
+	case OMAP_ABE_DIG_UPLINK_DAI:
+		if (stream)
+			abe_read_port_address(MM_UL_PORT, &dma_params);
+		else
+			return -EINVAL;
+		break;
+	case OMAP_ABE_VIB_DAI:
+		if (stream)
+			return -EINVAL;
+		else
+			abe_read_port_address(VIB_DL_PORT, &dma_params);
+	default:
+		return -EINVAL;
+	}
+
+	omap_abe_dai_dma_params[stream].port_addr =
+					(unsigned long)dma_params.data;
+	omap_abe_dai_dma_params[stream].packet_size = dma_params.iter;
+	cpu_dai->dma_data = &omap_abe_dai_dma_params[stream];
+
+	if (stream)
+		err = omap_mcpdm_set_uplink(&mcpdm_links[stream]);
+	else
+		err = omap_mcpdm_set_downlink(&mcpdm_links[stream]);
+
+	return err;
+}
+
+static int omap_abe_dai_hw_free(struct snd_pcm_substream *substream,
+				  struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+	struct omap_mcpdm_data *mcpdm_priv = cpu_dai->private_data;
+	struct omap_mcpdm_link *mcpdm_links = mcpdm_priv->links;
+	int err;
+
+	if (substream->stream)
+		err = omap_mcpdm_clr_uplink(&mcpdm_links[substream->stream]);
+	else
+		err = omap_mcpdm_clr_downlink(&mcpdm_links[substream->stream]);
+
+	return err;
+}
+
+static struct snd_soc_dai_ops omap_abe_dai_ops = {
+	.startup	= omap_abe_dai_startup,
+	.shutdown	= omap_abe_dai_shutdown,
+	.trigger	= omap_abe_dai_trigger,
+	.hw_params	= omap_abe_dai_hw_params,
+	.hw_free	= omap_abe_dai_hw_free,
+};
+
+struct snd_soc_dai omap_abe_dai[] = {
+	{
+		.name = "omap-abe-mm",
+		.id = OMAP_ABE_MM_DAI,
+		.playback = {
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
+			.formats = OMAP_ABE_FORMATS,
+		},
+		.capture = {
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_48000,
+			.formats = OMAP_ABE_FORMATS,
+		},
+		.ops = &omap_abe_dai_ops,
+		.private_data = &mcpdm_data,
+	},
+	{
+		.name = "omap-abe-mm-ext",
+		.id = OMAP_ABE_MM_EXT_DAI,
+		.playback = {
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
+			.formats = OMAP_ABE_FORMATS,
+		},
+		.ops = &omap_abe_dai_ops,
+		.private_data = &mcpdm_data,
+	},
+	{
+		.name = "omap-abe-voice",
+		.id = OMAP_ABE_VOICE_DAI,
+		.playback = {
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
+			.formats = OMAP_ABE_FORMATS,
+		},
+		.capture = {
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
+			.formats = OMAP_ABE_FORMATS,
+		},
+		.ops = &omap_abe_dai_ops,
+		.private_data = &mcpdm_data,
+	},
+	{
+		.name = "omap-abe-dig-ul",
+		.id = OMAP_ABE_DIG_UPLINK_DAI,
+		.capture = {
+			.channels_min = 2,
+			.channels_max = 8,
+			.rates = SNDRV_PCM_RATE_48000,
+			.formats = OMAP_ABE_FORMATS,
+		},
+		.ops = &omap_abe_dai_ops,
+		.private_data = &mcpdm_data,
+        },
+	{
+		.name = "omap-abe-vib",
+		.id = OMAP_ABE_VIB_DAI,
+		.playback = {
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_48000,
+			.formats = OMAP_ABE_FORMATS,
+		},
+		.ops = &omap_abe_dai_ops,
+		.private_data = &mcpdm_data,
+	},
+};
+EXPORT_SYMBOL_GPL(omap_abe_dai);
+
+static int __init snd_omap_abe_init(void)
+{
+	return snd_soc_register_dais(omap_abe_dai, ARRAY_SIZE(omap_abe_dai));
+}
+module_init(snd_omap_abe_init);
+
+static void __exit snd_omap_abe_exit(void)
+{
+	snd_soc_unregister_dais(omap_abe_dai, ARRAY_SIZE(omap_abe_dai));
+}
+module_exit(snd_omap_abe_exit);
+
+MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
+MODULE_DESCRIPTION("OMAP ABE SoC Interface");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/omap/omap-abe.h b/sound/soc/omap/omap-abe.h
new file mode 100644
index 000000000000..1c23b3b7fe36
--- /dev/null
+++ b/sound/soc/omap/omap-abe.h
@@ -0,0 +1,35 @@
+/*
+ * omap-abe.h
+ *
+ * Copyright (C) 2009 Texas Instruments
+ *
+ * Contact: Misael Lopez Cruz <x0052729@ti.com>
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __OMAP_MCPDM_H__
+#define __OMAP_MCPDM_H__
+
+#define OMAP_ABE_MM_DAI			0
+#define OMAP_ABE_MM_EXT_DAI		1
+#define OMAP_ABE_VOICE_DAI		2
+#define OMAP_ABE_DIG_UPLINK_DAI		3
+#define OMAP_ABE_VIB_DAI		4
+
+extern struct snd_soc_dai omap_abe_dai[];
+
+#endif	/* End of __OMAP_MCPDM_H__ */