new ad1836 codec driver based on asoc

There has been an ad1836 driver in sound/blackfin based on traditional alsa.
The new driver is based on asoc. The architecture of ad1836 codec driver is
very much like ad1938.
Signed-off-by: Barry Song <21cnbao@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/Kconfig

@@ -68,6 +68,9 @@ config SND_SOC_AC97_CODEC
 	tristate
 	select SND_AC97_CODEC
 
+config SND_SOC_AD1836
+	tristate
+
 config SND_SOC_AD1938
 	tristate
 

sound/soc/codecs/Makefile

 snd-soc-ac97-objs := ac97.o
+snd-soc-ad1836-objs := ad1836.o
 snd-soc-ad1938-objs := ad1938.o
 snd-soc-ad1980-objs := ad1980.o
 snd-soc-ad73311-objs := ad73311.o
@@ -45,6 +46,7 @@ snd-soc-wm9713-objs := wm9713.o
 snd-soc-max9877-objs := max9877.o
 
 obj-$(CONFIG_SND_SOC_AC97_CODEC)	+= snd-soc-ac97.o
+obj-$(CONFIG_SND_SOC_AD1836)	+= snd-soc-ad1836.o
 obj-$(CONFIG_SND_SOC_AD1938)	+= snd-soc-ad1938.o
 obj-$(CONFIG_SND_SOC_AD1980)	+= snd-soc-ad1980.o
 obj-$(CONFIG_SND_SOC_AD73311) += snd-soc-ad73311.o

sound/soc/codecs/ad1836.h

+/*
+ * File:         sound/soc/codecs/ad1836.h
+ * Based on:
+ * Author:       Barry Song <Barry.Song@analog.com>
+ *
+ * Created:      Aug 04, 2009
+ * Description:  definitions for AD1836 registers
+ *
+ * Modified:
+ *
+ * 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.
+ */
+
+#ifndef __AD1836_H__
+#define __AD1836_H__
+
+#define AD1836_DAC_CTRL1               0
+#define AD1836_DAC_POWERDOWN           2
+#define AD1836_DAC_SERFMT_MASK	       0xE0
+#define AD1836_DAC_SERFMT_PCK256       (0x4 << 5)
+#define AD1836_DAC_SERFMT_PCK128       (0x5 << 5)
+#define AD1836_DAC_WORD_LEN_MASK       0x18
+
+#define AD1836_DAC_CTRL2               1
+#define AD1836_DACL1_MUTE              0
+#define AD1836_DACR1_MUTE              1
+#define AD1836_DACL2_MUTE              2
+#define AD1836_DACR2_MUTE              3
+#define AD1836_DACL3_MUTE              4
+#define AD1836_DACR3_MUTE              5
+
+#define AD1836_DAC_L1_VOL              2
+#define AD1836_DAC_R1_VOL              3
+#define AD1836_DAC_L2_VOL              4
+#define AD1836_DAC_R2_VOL              5
+#define AD1836_DAC_L3_VOL              6
+#define AD1836_DAC_R3_VOL              7
+
+#define AD1836_ADC_CTRL1               12
+#define AD1836_ADC_POWERDOWN           7
+#define AD1836_ADC_HIGHPASS_FILTER     8
+
+#define AD1836_ADC_CTRL2               13
+#define AD1836_ADCL1_MUTE 		0
+#define AD1836_ADCR1_MUTE 		1
+#define AD1836_ADCL2_MUTE 		2
+#define AD1836_ADCR2_MUTE 		3
+#define AD1836_ADC_WORD_LEN_MASK       0x30
+#define AD1836_ADC_SERFMT_MASK	       (7 << 6)
+#define AD1836_ADC_SERFMT_PCK256       (0x4 << 6)
+#define AD1836_ADC_SERFMT_PCK128       (0x5 << 6)
+
+#define AD1836_ADC_CTRL3               14
+
+#define AD1836_NUM_REGS                16
+
+extern struct snd_soc_dai ad1836_dai;
+extern struct snd_soc_codec_device soc_codec_dev_ad1836;
+#endif