diff options
Diffstat (limited to 'sound/soc/ep93xx/snappercl15.c')
| -rw-r--r-- | sound/soc/ep93xx/snappercl15.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/sound/soc/ep93xx/snappercl15.c b/sound/soc/ep93xx/snappercl15.c new file mode 100644 index 0000000..64955340 --- /dev/null +++ b/sound/soc/ep93xx/snappercl15.c @@ -0,0 +1,150 @@ +/* + * snappercl15.c -- SoC audio for Bluewater Systems Snapper CL15 module + * + * Copyright (C) 2008 Bluewater Systems Ltd + * Author: Ryan Mallon <ryan@bluewatersys.com> + * + * 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. + * + */ + +#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 "../codecs/tlv320aic23.h" +#include "ep93xx-pcm.h" +#include "ep93xx-i2s.h" + +#define CODEC_CLOCK 5644800 + +static int snappercl15_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 err; + + err = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_IF | + SND_SOC_DAIFMT_CBS_CFS); + + err = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_IF | + SND_SOC_DAIFMT_CBS_CFS); + if (err) + return err; + + err = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, + SND_SOC_CLOCK_IN); + if (err) + return err; + + err = snd_soc_dai_set_sysclk(cpu_dai, 0, CODEC_CLOCK, + SND_SOC_CLOCK_OUT); + if (err) + return err; + + return 0; +} + +static struct snd_soc_ops snappercl15_ops = { + .hw_params = snappercl15_hw_params, +}; + +static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_LINE("Line In", NULL), + SND_SOC_DAPM_MIC("Mic Jack", NULL), +}; + +static const struct snd_soc_dapm_route audio_map[] = { + {"Headphone Jack", NULL, "LHPOUT"}, + {"Headphone Jack", NULL, "RHPOUT"}, + + {"LLINEIN", NULL, "Line In"}, + {"RLINEIN", NULL, "Line In"}, + + {"MICIN", NULL, "Mic Jack"}, +}; + +static int snappercl15_tlv320aic23_init(struct snd_soc_codec *codec) +{ + snd_soc_dapm_new_controls(codec, tlv320aic23_dapm_widgets, + ARRAY_SIZE(tlv320aic23_dapm_widgets)); + + snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); + return 0; +} + +static struct snd_soc_dai_link snappercl15_dai = { + .name = "tlv320aic23", + .stream_name = "AIC23", + .cpu_dai = &ep93xx_i2s_dai, + .codec_dai = &tlv320aic23_dai, + .init = snappercl15_tlv320aic23_init, + .ops = &snappercl15_ops, +}; + +static struct snd_soc_card snd_soc_snappercl15 = { + .name = "Snapper CL15", + .platform = &ep93xx_soc_platform, + .dai_link = &snappercl15_dai, + .num_links = 1, +}; + +static struct snd_soc_device snappercl15_snd_devdata = { + .card = &snd_soc_snappercl15, + .codec_dev = &soc_codec_dev_tlv320aic23, +}; + +static struct platform_device *snappercl15_snd_device; + +static int __init snappercl15_init(void) +{ + int ret; + + if (!machine_is_snapper_cl15()) + return -ENODEV; + + ret = ep93xx_i2s_acquire(EP93XX_SYSCON_DEVCFG_I2SONAC97, + EP93XX_SYSCON_I2SCLKDIV_ORIDE | + EP93XX_SYSCON_I2SCLKDIV_SPOL); + if (ret) + return ret; + + snappercl15_snd_device = platform_device_alloc("soc-audio", -1); + if (!snappercl15_snd_device) + return -ENOMEM; + + platform_set_drvdata(snappercl15_snd_device, &snappercl15_snd_devdata); + snappercl15_snd_devdata.dev = &snappercl15_snd_device->dev; + ret = platform_device_add(snappercl15_snd_device); + if (ret) + platform_device_put(snappercl15_snd_device); + + return ret; +} + +static void __exit snappercl15_exit(void) +{ + platform_device_unregister(snappercl15_snd_device); + ep93xx_i2s_release(); +} + +module_init(snappercl15_init); +module_exit(snappercl15_exit); + +MODULE_AUTHOR("Ryan Mallon <ryan@bluewatersys.com>"); +MODULE_DESCRIPTION("ALSA SoC Snapper CL15"); +MODULE_LICENSE("GPL"); + |