ALSA: ASoC codec: AD73311 audio codec driver

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

4 files changed, 203 insertions, 0 deletions

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index e0b9869df0f1..0507fcf66084 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 f977978a3409..07318445a1fd 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 000000000000..37af8607b00a
--- /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@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 000000000000..507ce0c30edf
--- /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@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