[alsa-devel] [PATCH 1/1] ASoC: Added OMAP3 EVM support in ASoC.
Arun KS
getarunks at gmail.com
Fri May 8 06:42:34 CEST 2009
On Thu, May 7, 2009 at 9:38 PM, Anuj Aggarwal <anuj.aggarwal at ti.com> wrote:
>
> Signed-off-by: Anuj Aggarwal <anuj.aggarwal at ti.com>
> ---
> sound/soc/omap/Kconfig | 8 +++
> sound/soc/omap/Makefile | 2 +
> sound/soc/omap/omap3evm.c | 147 +++++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 157 insertions(+), 0 deletions(-)
> create mode 100644 sound/soc/omap/omap3evm.c
>
> diff --git a/sound/soc/omap/Kconfig b/sound/soc/omap/Kconfig
> index 675732e..b771238 100644
> --- a/sound/soc/omap/Kconfig
> +++ b/sound/soc/omap/Kconfig
> @@ -39,6 +39,14 @@ config SND_OMAP_SOC_OMAP2EVM
> help
> Say Y if you want to add support for SoC audio on the omap2evm board.
>
> +config SND_OMAP_SOC_OMAP3EVM
> + tristate "SoC Audio support for OMAP3EVM board"
> + depends on TWL4030_CORE && SND_OMAP_SOC && MACH_OMAP3EVM
> + select SND_OMAP_SOC_MCBSP
> + select SND_SOC_TWL4030
> + help
> + Say Y if you want to add support for SoC audio on the omap3evm board.
> +
> config SND_OMAP_SOC_SDP3430
> tristate "SoC Audio support for Texas Instruments SDP3430"
> depends on TWL4030_CORE && SND_OMAP_SOC && MACH_OMAP_3430SDP
> diff --git a/sound/soc/omap/Makefile b/sound/soc/omap/Makefile
> index 0c9e4ac..a37f498 100644
> --- a/sound/soc/omap/Makefile
> +++ b/sound/soc/omap/Makefile
> @@ -10,6 +10,7 @@ snd-soc-n810-objs := n810.o
> snd-soc-osk5912-objs := osk5912.o
> snd-soc-overo-objs := overo.o
> snd-soc-omap2evm-objs := omap2evm.o
> +snd-soc-omap3evm-objs := omap3evm.o
> snd-soc-sdp3430-objs := sdp3430.o
> snd-soc-omap3pandora-objs := omap3pandora.o
> snd-soc-omap3beagle-objs := omap3beagle.o
> @@ -18,6 +19,7 @@ obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o
> obj-$(CONFIG_SND_OMAP_SOC_OSK5912) += snd-soc-osk5912.o
> obj-$(CONFIG_SND_OMAP_SOC_OVERO) += snd-soc-overo.o
> obj-$(CONFIG_MACH_OMAP2EVM) += snd-soc-omap2evm.o
> +obj-$(CONFIG_MACH_OMAP3EVM) += snd-soc-omap3evm.o
> obj-$(CONFIG_SND_OMAP_SOC_SDP3430) += snd-soc-sdp3430.o
> obj-$(CONFIG_SND_OMAP_SOC_OMAP3_PANDORA) += snd-soc-omap3pandora.o
> obj-$(CONFIG_SND_OMAP_SOC_OMAP3_BEAGLE) += snd-soc-omap3beagle.o
> diff --git a/sound/soc/omap/omap3evm.c b/sound/soc/omap/omap3evm.c
> new file mode 100644
> index 0000000..2af5d93
> --- /dev/null
> +++ b/sound/soc/omap/omap3evm.c
> @@ -0,0 +1,147 @@
> +/*
> + * omap3evm.c -- ALSA SoC support for OMAP3 EVM
> + *
> + * Author: Anuj Aggarwal <anuj.aggarwal at ti.com>
> + *
> + * Based on sound/soc/omap/beagle.c by Steve Sakoman
> + *
> + * Copyright (C) 2008 Texas Instruments, Incorporated
> + *
> + * 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 version 2.
> + *
> + * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
> + * whether express or implied; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + */
> +
> +#include <linux/clk.h>
> +#include <linux/platform_device.h>
> +#include <sound/core.h>
> +#include <sound/pcm.h>
> +#include <sound/soc.h>
> +#include <sound/soc-dapm.h>
> +
> +#include <asm/mach-types.h>
> +#include <mach/hardware.h>
> +#include <mach/gpio.h>
> +#include <mach/mcbsp.h>
> +
> +#include "omap-mcbsp.h"
> +#include "omap-pcm.h"
> +#include "../codecs/twl4030.h"
> +
> +static int omap3evm_hw_params(struct snd_pcm_substream *substream,
> + struct snd_pcm_hw_params *params)
> +{
> + struct snd_soc_pcm_runtime *rtd = substream->private_data;
> + struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
> + struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
> + int ret;
> +
> + /* Set codec DAI configuration */
> + ret = snd_soc_dai_set_fmt(codec_dai,
> + SND_SOC_DAIFMT_I2S |
> + SND_SOC_DAIFMT_NB_NF |
> + SND_SOC_DAIFMT_CBM_CFM);
> + if (ret < 0) {
> + printk(KERN_ERR "Can't set codec DAI configuration\n");
> + return ret;
> + }
> +
> + /* Set cpu DAI configuration */
> + ret = snd_soc_dai_set_fmt(cpu_dai,
> + SND_SOC_DAIFMT_I2S |
> + SND_SOC_DAIFMT_NB_NF |
> + SND_SOC_DAIFMT_CBM_CFM);
> + if (ret < 0) {
> + printk(KERN_ERR "Can't set cpu DAI configuration\n");
> + return ret;
> + }
> +
> + /* Set the codec system clock for DAC and ADC */
> + ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
> + SND_SOC_CLOCK_IN);
> + if (ret < 0) {
> + printk(KERN_ERR "Can't set codec system clock\n");
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static struct snd_soc_ops omap3evm_ops = {
> + .hw_params = omap3evm_hw_params,
> +};
> +
> +/* Digital audio interface glue - connects codec <--> CPU */
> +static struct snd_soc_dai_link omap3evm_dai = {
> + .name = "TWL4030",
> + .stream_name = "TWL4030",
> + .cpu_dai = &omap_mcbsp_dai[0],
> + .codec_dai = &twl4030_dai,
Please use
.codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
> + .ops = &omap3evm_ops,
> +};
> +
> +/* Audio machine driver */
> +static struct snd_soc_card snd_soc_omap3evm = {
> + .name = "omap3evm",
> + .platform = &omap_soc_platform,
> + .dai_link = &omap3evm_dai,
> + .num_links = 1,
> +};
> +
> +/* Audio subsystem */
> +static struct snd_soc_device omap3evm_snd_devdata = {
> + .card = &snd_soc_omap3evm,
> + .codec_dev = &soc_codec_dev_twl4030,
> +};
> +
> +static struct platform_device *omap3evm_snd_device;
> +
> +static int __init omap3evm_soc_init(void)
> +{
> + int ret;
> +
> + if (!machine_is_omap3evm()) {
> + pr_debug("Not OMAP3 EVM!\n");
> + return -ENODEV;
> + }
> + pr_info("OMAP3 EVM SoC init\n");
> +
> + omap3evm_snd_device = platform_device_alloc("soc-audio", -1);
> + if (!omap3evm_snd_device) {
> + printk(KERN_ERR "Platform device allocation failed\n");
> + return -ENOMEM;
> + }
> +
> + platform_set_drvdata(omap3evm_snd_device, &omap3evm_snd_devdata);
> + omap3evm_snd_devdata.dev = &omap3evm_snd_device->dev;
> + *(unsigned int *)omap3evm_dai.cpu_dai->private_data = 1;
> +
> + ret = platform_device_add(omap3evm_snd_device);
> + if (ret)
> + goto err1;
> +
> + return 0;
> +
> +err1:
> + printk(KERN_ERR "Unable to add platform device\n");
> + platform_device_put(omap3evm_snd_device);
> +
> + return ret;
> +}
> +
> +static void __exit omap3evm_soc_exit(void)
> +{
> + platform_device_unregister(omap3evm_snd_device);
> +}
> +
> +module_init(omap3evm_soc_init);
> +module_exit(omap3evm_soc_exit);
> +
> +MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal at ti.com>");
> +MODULE_DESCRIPTION("ALSA SoC OMAP3 EVM");
> +MODULE_LICENSE("GPLv2");
> --
> 1.6.2.4
>
>
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