This machine driver is for LAPIS Semiconductor ML7213 Carrier Board + ML26124 Reference Board

Signed-off-by: Tomoya MORINAGA tomoya.rohm@gmail.com --- v8 - Delete redundant break - Use module_platform_driver - Delete redundant 'space' - Delete snd_soc_dapm_enable_pin()s --- sound/soc/lapis/Kconfig | 7 ++ sound/soc/lapis/Makefile | 2 + sound/soc/lapis/ml7213ioh-machine.c | 169 +++++++++++++++++++++++++++++++++++ 3 files changed, 178 insertions(+), 0 deletions(-) create mode 100644 sound/soc/lapis/ml7213ioh-machine.c

diff --git a/sound/soc/lapis/Kconfig b/sound/soc/lapis/Kconfig index 551e385..9bc1b4d 100644 --- a/sound/soc/lapis/Kconfig +++ b/sound/soc/lapis/Kconfig @@ -2,3 +2,10 @@ config SND_SOC_ML7213_PLATFORM tristate "ML7213 IOH ASoC platform driver" help This option enables support for the AC Link Controllers in ML7213 IOH SoC. + +config SND_SOC_ML7213_MACHINE + tristate "ML7213 IOH ASoC machine driver" + select SND_SOC_ML7213_PLATFORM + select SND_SOC_ML26124 + help + This is ASoC machine driver for ML7213 IOH diff --git a/sound/soc/lapis/Makefile b/sound/soc/lapis/Makefile index aba1630..7ec4bea 100644 --- a/sound/soc/lapis/Makefile +++ b/sound/soc/lapis/Makefile @@ -1,4 +1,6 @@ # Platform +snd-soc-ml7213-machine-objs := ml7213ioh-machine.o snd-soc-ml7213-plat-objs := ml7213ioh-plat.o

obj-$(CONFIG_SND_SOC_ML7213_PLATFORM) += snd-soc-ml7213-plat.o +obj-$(CONFIG_SND_SOC_ML7213_MACHINE) += snd-soc-ml7213-machine.o diff --git a/sound/soc/lapis/ml7213ioh-machine.c b/sound/soc/lapis/ml7213ioh-machine.c new file mode 100644 index 0000000..14f83d2 --- /dev/null +++ b/sound/soc/lapis/ml7213ioh-machine.c @@ -0,0 +1,169 @@ +/* + * ml7213ioh-machine.c -- SoC Audio for LAPIS Semiconductor ML7213 IOH CRB + * + * Copyright (C) 2011 LAPIS Semiconductor Co., Ltd. + * + * 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 of the License. + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. + */ +#include <linux/module.h> +#include <linux/platform_device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> +#include <linux/i2c.h> +#include "../codecs/ml26124.h" +#include "ioh_i2s.h" + +static const struct snd_soc_dapm_widget ml7213_dapm_widgets[] = { + SND_SOC_DAPM_SPK("Speaker", NULL), + SND_SOC_DAPM_LINE("LINEOUT", NULL), + SND_SOC_DAPM_LINE("LINEIN", NULL), + SND_SOC_DAPM_MIC("AnalogMIC", NULL), + SND_SOC_DAPM_MIC("DigitalMIC", NULL), +}; + +static const struct snd_soc_dapm_route ml7213_routes[] = { + {"Speaker", NULL, "SPOUT"}, + {"LINEOUT", NULL, "LOUT"}, + {"AnalogMIC", NULL, "MICBIAS"}, + {"MIN", NULL, "AnalogMIC"}, + {"MDIN", NULL, "DigitalMIC"}, + {"MIN", NULL, "LINEIN"}, +}; + +static int ml7213_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + int bclkfs; + int mclkfs; + unsigned int clk; + int ret; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + unsigned int channel_map[] = {5, 0, 1, 2, 3, 4}; + + /* set cpu DAI channel mapping */ + ret = snd_soc_dai_set_channel_map(cpu_dai, ARRAY_SIZE(channel_map), + channel_map, ARRAY_SIZE(channel_map), channel_map); + if (ret < 0) + return ret; + + switch (params_rate(hw_params)) { + case 16000: + case 32000: + case 48000: + clk = 12288000; + break; + default: + return -EINVAL; + } + + mclkfs = clk / params_rate(hw_params); + + switch (params_format(hw_params)) { + case SNDRV_PCM_FORMAT_U8: + case SNDRV_PCM_FORMAT_S16_LE: + bclkfs = 32; + break; + case SNDRV_PCM_FORMAT_S32_LE: + bclkfs = 64; + break; + default: + pr_err("%s: Failed not support format\n", __func__); + return -EINVAL; + } + + /* set the codec system clock for DAC and ADC */ + ret = snd_soc_dai_set_sysclk(codec_dai, ML26124_USE_PLLOUT, clk, + SND_SOC_CLOCK_IN); + if (ret < 0) + return 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_CBS_CFS); + if (ret < 0) + 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_CBS_CFS); + if (ret < 0) + return ret; + + return 0; +} + +static struct snd_soc_ops ml7213_ops = { + .hw_params = ml7213_hw_params, +}; + +static struct snd_soc_dai_link ml7213crb_dai = { + .name = "ml26124", + .stream_name = "ML26124", + .cpu_dai_name = "ml7213ioh", + .codec_dai_name = "ml26124-hifi", + .platform_name = "ml7213-i2s-audio", + .codec_name = "ml26124.1-001a", + .ops = &ml7213_ops, +}; + +static struct snd_soc_card ml7213crb_card = { + .name = "LAPIS Semiconductor ML7213CRB", + .dai_link = &ml7213crb_dai, + .num_links = 1, + .dapm_widgets = ml7213_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(ml7213_dapm_widgets), + .dapm_routes = ml7213_routes, + .num_dapm_routes = ARRAY_SIZE(ml7213_routes), +}; + +static int __devinit lapis_ml7213_ml26124_probe(struct platform_device *pdev) +{ + int ret; + + ml7213crb_card.dev = &pdev->dev; + ret = snd_soc_register_card(&ml7213crb_card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret); + return ret; + } + + return 0; +} + +static int __devexit lapis_ml7213_ml26124_remove(struct platform_device *pdev) +{ + snd_soc_unregister_card(&ml7213crb_card); + platform_set_drvdata(pdev, NULL); + return 0; +} + +static struct platform_driver snd_ml7213crb_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "lapis-ml7213ioh-CRB", + }, + .probe = lapis_ml7213_ml26124_probe, + .remove = __devexit_p(lapis_ml7213_ml26124_remove), +}; + +module_platform_driver(snd_ml7213crb_driver); + +MODULE_AUTHOR("Tomoya MORINAGA tomoya.rohm@gmail.com"); +MODULE_DESCRIPTION("LAPIS Semiconductor ML7213 IOH ALSA SoC machine driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:lapis-ml7213ioh-CRB");