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Subject[PATCH v6] sound/soc/lapis: add machine driver for ML7213 Carrier Board
Date
This machine driver is for LAPIS Semiconductor ML7213 Carrier Board.

Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
---
V6
- Add master/slave settings
- Use snd_soc_register_card
- Move set_clkdiv to dai_hw_params
---
sound/soc/lapis/Kconfig | 7 ++
sound/soc/lapis/Makefile | 2 +
sound/soc/lapis/ml7213ioh-machine.c | 179 +++++++++++++++++++++++++++++++++++
3 files changed, 188 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..eab7e70
--- /dev/null
+++ b/sound/soc/lapis/ml7213ioh-machine.c
@@ -0,0 +1,179 @@
+/*
+ * 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"},
+ {"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;
+ break;
+ }
+
+ /* set the codec system clock for DAC and ADC */
+ ret = snd_soc_dai_set_sysclk(codec_dai, ML26124_USE_PLL, 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_CBM_CFM);
+ 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),
+};
+
+static int __init lapis_ml7213_ml26124_init(void)
+{
+ return platform_driver_register(&snd_ml7213crb_driver);
+}
+module_init(lapis_ml7213_ml26124_init);
+
+static void __exit lapis_ml7213_ml26124_exit(void)
+{
+ platform_driver_unregister(&snd_ml7213crb_driver);
+}
+module_exit(lapis_ml7213_ml26124_exit);
+
+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");
--
1.7.7.6


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