[alsa-devel] [PATCH 1/1] ASoC codec: AD73311 audio codec driver
Bryan Wu
cooloney at kernel.org
Sat Sep 27 10:57:26 CEST 2008
From: Cliff Cai <cliff.cai at analog.com>
Signed-off-by: Cliff Cai <cliff.cai at analog.com>
Signed-off-by: Bryan Wu <cooloney at kernel.org>
---
sound/soc/codecs/Kconfig | 4 ++
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/ad73311.c | 107 ++++++++++++++++++++++++++++++++++++++++++++
sound/soc/codecs/ad73311.h | 90 +++++++++++++++++++++++++++++++++++++
4 files changed, 203 insertions(+), 0 deletions(-)
create mode 100644 sound/soc/codecs/ad73311.c
create mode 100644 sound/soc/codecs/ad73311.h
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index e0b9869..0507fcf 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -3,6 +3,7 @@ config SND_SOC_ALL_CODECS
depends on I2C
select SPI
select SPI_MASTER
+ select SND_SOC_AD73311
select SND_SOC_AK4535
select SND_SOC_CS4270
select SND_SOC_SSM2602
@@ -34,6 +35,9 @@ config SND_SOC_AC97_CODEC
config SND_SOC_AD1980
tristate
+config SND_SOC_AD73311
+ tristate
+
config SND_SOC_AK4535
tristate
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index f977978..0731844 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -1,5 +1,6 @@
snd-soc-ac97-objs := ac97.o
snd-soc-ad1980-objs := ad1980.o
+snd-soc-ad73311-objs := ad73311.o
snd-soc-ak4535-objs := ak4535.o
snd-soc-cs4270-objs := cs4270.o
snd-soc-ssm2602-objs := ssm2602.o
@@ -20,6 +21,7 @@ snd-soc-wm9713-objs := wm9713.o
obj-$(CONFIG_SND_SOC_AC97_CODEC) += snd-soc-ac97.o
obj-$(CONFIG_SND_SOC_AD1980) += snd-soc-ad1980.o
+obj-$(CONFIG_SND_SOC_AD73311) += snd-soc-ad73311.o
obj-$(CONFIG_SND_SOC_AK4535) += snd-soc-ak4535.o
obj-$(CONFIG_SND_SOC_CS4270) += snd-soc-cs4270.o
obj-$(CONFIG_SND_SOC_SSM2602) += snd-soc-ssm2602.o
diff --git a/sound/soc/codecs/ad73311.c b/sound/soc/codecs/ad73311.c
new file mode 100644
index 0000000..37af860
--- /dev/null
+++ b/sound/soc/codecs/ad73311.c
@@ -0,0 +1,107 @@
+/*
+ * ad73311.c -- ALSA Soc AD73311 codec support
+ *
+ * Copyright: Analog Device Inc.
+ * Author: Cliff Cai <cliff.cai at analog.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.
+ *
+ * Revision history
+ * 25th Sep 2008 Initial version.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/ac97_codec.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include "ad73311.h"
+
+struct snd_soc_dai ad73311_dai = {
+ .name = "AD73311",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE, },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE, },
+};
+EXPORT_SYMBOL_GPL(ad73311_dai);
+
+static int ad73311_soc_probe(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec;
+ int ret = 0;
+
+ codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
+ if (codec == NULL)
+ return -ENOMEM;
+ mutex_init(&codec->mutex);
+ codec->name = "AD73311";
+ codec->owner = THIS_MODULE;
+ codec->dai = &ad73311_dai;
+ codec->num_dai = 1;
+ socdev->codec = codec;
+ INIT_LIST_HEAD(&codec->dapm_widgets);
+ INIT_LIST_HEAD(&codec->dapm_paths);
+
+ /* register pcms */
+ ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+ if (ret < 0) {
+ printk(KERN_ERR "ad73311: failed to create pcms\n");
+ goto pcm_err;
+ }
+
+ ret = snd_soc_register_card(socdev);
+ if (ret < 0) {
+ printk(KERN_ERR "ad73311: failed to register card\n");
+ goto register_err;
+ }
+
+ return ret;
+
+register_err:
+ snd_soc_free_pcms(socdev);
+pcm_err:
+ kfree(socdev->codec);
+ socdev->codec = NULL;
+ return ret;
+}
+
+static int ad73311_soc_remove(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_codec *codec = socdev->codec;
+
+ if (codec == NULL)
+ return 0;
+ snd_soc_free_pcms(socdev);
+ kfree(codec);
+ return 0;
+}
+
+struct snd_soc_codec_device soc_codec_dev_ad73311 = {
+ .probe = ad73311_soc_probe,
+ .remove = ad73311_soc_remove,
+};
+EXPORT_SYMBOL_GPL(soc_codec_dev_ad73311);
+
+MODULE_DESCRIPTION("ASoC ad73311 driver");
+MODULE_AUTHOR("Cliff Cai ");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/ad73311.h b/sound/soc/codecs/ad73311.h
new file mode 100644
index 0000000..507ce0c
--- /dev/null
+++ b/sound/soc/codecs/ad73311.h
@@ -0,0 +1,90 @@
+/*
+ * File: sound/soc/codec/ad73311.h
+ * Based on:
+ * Author: Cliff Cai <cliff.cai at analog.com>
+ *
+ * Created: Thur Sep 25, 2008
+ * Description: definitions for AD73311 registers
+ *
+ *
+ * Modified:
+ * Copyright 2006 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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.
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef __AD73311_H__
+#define __AD73311_H__
+
+#define AD_CONTROL 0x8000
+#define AD_DATA 0x0000
+#define AD_READ 0x4000
+#define AD_WRITE 0x0000
+
+/* Control register A */
+#define CTRL_REG_A (0 << 8)
+
+#define REGA_MODE_PRO 0x00
+#define REGA_MODE_DATA 0x01
+#define REGA_MODE_MIXED 0x03
+#define REGA_DLB 0x04
+#define REGA_SLB 0x08
+#define REGA_DEVC(x) ((x & 0x7) << 4)
+#define REGA_RESET 0x80
+
+/* Control register B */
+#define CTRL_REG_B (1 << 8)
+
+#define REGB_DIRATE(x) (x & 0x3)
+#define REGB_SCDIV(x) ((x & 0x3) << 2)
+#define REGB_MCDIV(x) ((x & 0x7) << 4)
+#define REGB_CEE (1 << 7)
+
+/* Control register C */
+#define CTRL_REG_C (2 << 8)
+
+#define REGC_PUDEV (1 << 0)
+#define REGC_PUADC (1 << 3)
+#define REGC_PUDAC (1 << 4)
+#define REGC_PUREF (1 << 5)
+#define REGC_REFUSE (1 << 6)
+
+/* Control register D */
+#define CTRL_REG_D (3 << 8)
+
+#define REGD_IGS(x) (x & 0x7)
+#define REGD_RMOD (1 << 3)
+#define REGD_OGS(x) ((x & 0x7) << 4)
+#define REGD_MUTE (x << 7)
+
+/* Control register E */
+#define CTRL_REG_E (4 << 8)
+
+#define REGE_DA(x) (x & 0x1f)
+#define REGE_IBYP (1 << 5)
+
+/* Control register F */
+#define CTRL_REG_F (5 << 8)
+
+#define REGF_SEEN (1 << 5)
+#define REGF_INV (1 << 6)
+#define REGF_ALB (1 << 7)
+
+extern struct snd_soc_dai ad73311_dai;
+extern struct snd_soc_codec_device soc_codec_dev_ad73311;
+#endif
--
1.5.6
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