Merge branch 'for-3.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/asoc-2.6 into topic/asoc

5 files changed, 338 insertions, 0 deletions

diff --git a/sound/soc/omap/Kconfig b/sound/soc/omap/Kconfig
index 99054cf1f68f..fe83d0d176be 100644
--- a/sound/soc/omap/Kconfig
+++ b/sound/soc/omap/Kconfig
@@ -9,6 +9,9 @@ config SND_OMAP_SOC_MCBSP
 config SND_OMAP_SOC_MCPDM
 	tristate
 
+config SND_OMAP_SOC_HDMI
+	tristate
+
 config SND_OMAP_SOC_N810
 	tristate "SoC Audio support for Nokia N810"
 	depends on SND_OMAP_SOC && MACH_NOKIA_N810 && I2C
@@ -100,6 +103,14 @@ config SND_OMAP_SOC_SDP4430
 	  Say Y if you want to add support for SoC audio on Texas Instruments
 	  SDP4430.
 
+config SND_OMAP_SOC_OMAP4_HDMI
+	tristate "SoC Audio support for Texas Instruments OMAP4 HDMI"
+	depends on SND_OMAP_SOC && OMAP4_DSS_HDMI && OMAP2_DSS && ARCH_OMAP4
+	select SND_OMAP_SOC_HDMI
+	help
+	  Say Y if you want to add support for SoC HDMI audio on Texas Instruments
+	  OMAP4 chips
+
 config SND_OMAP_SOC_OMAP3_PANDORA
 	tristate "SoC Audio support for OMAP3 Pandora"
 	depends on TWL4030_CORE && SND_OMAP_SOC && MACH_OMAP3_PANDORA
diff --git a/sound/soc/omap/Makefile b/sound/soc/omap/Makefile
index 6c2c87eed5bb..59e2c8d1e38d 100644
--- a/sound/soc/omap/Makefile
+++ b/sound/soc/omap/Makefile
@@ -2,10 +2,12 @@
 snd-soc-omap-objs := omap-pcm.o
 snd-soc-omap-mcbsp-objs := omap-mcbsp.o
 snd-soc-omap-mcpdm-objs := omap-mcpdm.o mcpdm.o
+snd-soc-omap-hdmi-objs := omap-hdmi.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_HDMI) += snd-soc-omap-hdmi.o
 
 # OMAP Machine Support
 snd-soc-n810-objs := n810.o
@@ -21,6 +23,7 @@ snd-soc-omap3pandora-objs := omap3pandora.o
 snd-soc-omap3beagle-objs := omap3beagle.o
 snd-soc-zoom2-objs := zoom2.o
 snd-soc-igep0020-objs := igep0020.o
+snd-soc-omap4-hdmi-objs := omap4-hdmi-card.o
 
 obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o
 obj-$(CONFIG_SND_OMAP_SOC_RX51) += snd-soc-rx51.o
@@ -36,3 +39,4 @@ obj-$(CONFIG_SND_OMAP_SOC_OMAP3_PANDORA) += snd-soc-omap3pandora.o
 obj-$(CONFIG_SND_OMAP_SOC_OMAP3_BEAGLE) += snd-soc-omap3beagle.o
 obj-$(CONFIG_SND_OMAP_SOC_ZOOM2) += snd-soc-zoom2.o
 obj-$(CONFIG_SND_OMAP_SOC_IGEP0020) += snd-soc-igep0020.o
+obj-$(CONFIG_SND_OMAP_SOC_OMAP4_HDMI) += snd-soc-omap4-hdmi.o
diff --git a/sound/soc/omap/omap-hdmi.c b/sound/soc/omap/omap-hdmi.c
new file mode 100644
index 000000000000..36c6eaeffb02
--- /dev/null
+++ b/sound/soc/omap/omap-hdmi.c
@@ -0,0 +1,158 @@
+/*
+ * omap-hdmi.c
+ *
+ * OMAP ALSA SoC DAI driver for HDMI audio on OMAP4 processors.
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Authors: Jorge Candelaria <jorge.candelaria@ti.com>
+ *          Ricardo Neri <ricardo.neri@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 <plat/dma.h>
+#include "omap-pcm.h"
+#include "omap-hdmi.h"
+
+#define DRV_NAME "hdmi-audio-dai"
+
+static struct omap_pcm_dma_data omap_hdmi_dai_dma_params = {
+	.name = "HDMI playback",
+	.sync_mode = OMAP_DMA_SYNC_PACKET,
+};
+
+static int omap_hdmi_dai_startup(struct snd_pcm_substream *substream,
+				  struct snd_soc_dai *dai)
+{
+	int err;
+	/*
+	 * Make sure that the period bytes are multiple of the DMA packet size.
+	 * Largest packet size we use is 32 32-bit words = 128 bytes
+	 */
+	err = snd_pcm_hw_constraint_step(substream->runtime, 0,
+				 SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 128);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+static int omap_hdmi_dai_hw_params(struct snd_pcm_substream *substream,
+				    struct snd_pcm_hw_params *params,
+				    struct snd_soc_dai *dai)
+{
+	int err = 0;
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		omap_hdmi_dai_dma_params.packet_size = 16;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		omap_hdmi_dai_dma_params.packet_size = 32;
+		break;
+	default:
+		err = -EINVAL;
+	}
+
+	omap_hdmi_dai_dma_params.data_type = OMAP_DMA_DATA_TYPE_S32;
+
+	snd_soc_dai_set_dma_data(dai, substream,
+				 &omap_hdmi_dai_dma_params);
+
+	return err;
+}
+
+static struct snd_soc_dai_ops omap_hdmi_dai_ops = {
+	.startup	= omap_hdmi_dai_startup,
+	.hw_params	= omap_hdmi_dai_hw_params,
+};
+
+static struct snd_soc_dai_driver omap_hdmi_dai = {
+	.playback = {
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = OMAP_HDMI_RATES,
+		.formats = OMAP_HDMI_FORMATS,
+	},
+	.ops = &omap_hdmi_dai_ops,
+};
+
+static __devinit int omap_hdmi_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct resource *hdmi_rsrc;
+
+	hdmi_rsrc = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!hdmi_rsrc) {
+		dev_err(&pdev->dev, "Cannot obtain IORESOURCE_MEM HDMI\n");
+		return -EINVAL;
+	}
+
+	omap_hdmi_dai_dma_params.port_addr =  hdmi_rsrc->start
+		+ OMAP_HDMI_AUDIO_DMA_PORT;
+
+	hdmi_rsrc = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+	if (!hdmi_rsrc) {
+		dev_err(&pdev->dev, "Cannot obtain IORESOURCE_DMA HDMI\n");
+		return -EINVAL;
+	}
+
+	omap_hdmi_dai_dma_params.dma_req =  hdmi_rsrc->start;
+
+	ret = snd_soc_register_dai(&pdev->dev, &omap_hdmi_dai);
+	return ret;
+}
+
+static int __devexit omap_hdmi_remove(struct platform_device *pdev)
+{
+	snd_soc_unregister_dai(&pdev->dev);
+	return 0;
+}
+
+static struct platform_driver hdmi_dai_driver = {
+	.driver = {
+		.name = DRV_NAME,
+		.owner = THIS_MODULE,
+	},
+	.probe = omap_hdmi_probe,
+	.remove = __devexit_p(omap_hdmi_remove),
+};
+
+static int __init hdmi_dai_init(void)
+{
+	return platform_driver_register(&hdmi_dai_driver);
+}
+module_init(hdmi_dai_init);
+
+static void __exit hdmi_dai_exit(void)
+{
+	platform_driver_unregister(&hdmi_dai_driver);
+}
+module_exit(hdmi_dai_exit);
+
+MODULE_AUTHOR("Jorge Candelaria <jorge.candelaria@ti.com>");
+MODULE_AUTHOR("Ricardo Neri <ricardo.neri@ti.com>");
+MODULE_DESCRIPTION("OMAP HDMI SoC Interface");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/sound/soc/omap/omap-hdmi.h b/sound/soc/omap/omap-hdmi.h
new file mode 100644
index 000000000000..34c298d5057e
--- /dev/null
+++ b/sound/soc/omap/omap-hdmi.h
@@ -0,0 +1,36 @@
+/*
+ * omap-hdmi.h
+ *
+ * Definitions for OMAP ALSA SoC DAI driver for HDMI audio on OMAP4 processors.
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Authors: Jorge Candelaria <jorge.candelaria@ti.com>
+ *          Ricardo Neri <ricardo.neri@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_HDMI_H__
+#define __OMAP_HDMI_H__
+
+#define OMAP_HDMI_AUDIO_DMA_PORT 0x8c
+
+#define OMAP_HDMI_RATES	(SNDRV_PCM_RATE_32000 | \
+				SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
+
+#define OMAP_HDMI_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
+				SNDRV_PCM_FMTBIT_S24_LE)
+
+#endif
diff --git a/sound/soc/omap/omap4-hdmi-card.c b/sound/soc/omap/omap4-hdmi-card.c
new file mode 100644
index 000000000000..9f32615b81f7
--- /dev/null
+++ b/sound/soc/omap/omap4-hdmi-card.c
@@ -0,0 +1,129 @@
+/*
+ * omap4-hdmi-card.c
+ *
+ * OMAP ALSA SoC machine driver for TI OMAP4 HDMI
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Ricardo Neri <ricardo.neri@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 <sound/pcm.h>
+#include <sound/soc.h>
+#include <asm/mach-types.h>
+#include <video/omapdss.h>
+
+#define DRV_NAME "omap4-hdmi-audio"
+
+static int omap4_hdmi_dai_hw_params(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *params)
+{
+	int i;
+	struct omap_overlay_manager *mgr = NULL;
+	struct device *dev = substream->pcm->card->dev;
+
+	/* Find DSS HDMI device */
+	for (i = 0; i < omap_dss_get_num_overlay_managers(); i++) {
+		mgr = omap_dss_get_overlay_manager(i);
+		if (mgr && mgr->device
+			&& mgr->device->type == OMAP_DISPLAY_TYPE_HDMI)
+			break;
+	}
+
+	if (i == omap_dss_get_num_overlay_managers()) {
+		dev_err(dev, "HDMI display device not found!\n");
+		return -ENODEV;
+	}
+
+	/* Make sure HDMI is power-on to avoid L3 interconnect errors */
+	if (mgr->device->state != OMAP_DSS_DISPLAY_ACTIVE) {
+		dev_err(dev, "HDMI display is not active!\n");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static struct snd_soc_ops omap4_hdmi_dai_ops = {
+	.hw_params = omap4_hdmi_dai_hw_params,
+};
+
+static struct snd_soc_dai_link omap4_hdmi_dai = {
+	.name = "HDMI",
+	.stream_name = "HDMI",
+	.cpu_dai_name = "hdmi-audio-dai",
+	.platform_name = "omap-pcm-audio",
+	.codec_name = "omapdss_hdmi",
+	.codec_dai_name = "hdmi-audio-codec",
+	.ops = &omap4_hdmi_dai_ops,
+};
+
+static struct snd_soc_card snd_soc_omap4_hdmi = {
+	.name = "OMAP4HDMI",
+	.dai_link = &omap4_hdmi_dai,
+	.num_links = 1,
+};
+
+static __devinit int omap4_hdmi_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = &snd_soc_omap4_hdmi;
+	int 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);
+		card->dev = NULL;
+		return ret;
+	}
+	return 0;
+}
+
+static int __devexit omap4_hdmi_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	snd_soc_unregister_card(card);
+	card->dev = NULL;
+	return 0;
+}
+
+static struct platform_driver omap4_hdmi_driver = {
+	.driver = {
+		.name = "omap4-hdmi-audio",
+		.owner = THIS_MODULE,
+	},
+	.probe = omap4_hdmi_probe,
+	.remove = __devexit_p(omap4_hdmi_remove),
+};
+
+static int __init omap4_hdmi_init(void)
+{
+	return platform_driver_register(&omap4_hdmi_driver);
+}
+module_init(omap4_hdmi_init);
+
+static void __exit omap4_hdmi_exit(void)
+{
+	platform_driver_unregister(&omap4_hdmi_driver);
+}
+module_exit(omap4_hdmi_exit);
+
+MODULE_AUTHOR("Ricardo Neri <ricardo.neri@ti.com>");
+MODULE_DESCRIPTION("OMAP4 HDMI machine ASoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);