sound: ASoC codec: SSM2602 audio codec driver

[Some checkpatch fixups done by Mark Brown.]
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: Jaroslav Kysela <perex@perex.cz>

sound/soc/codecs/Kconfig

@@ -4,6 +4,7 @@ config SND_SOC_ALL_CODECS
 	select SPI
 	select SPI_MASTER
 	select SND_SOC_AK4535
+	select SND_SOC_SSM2602
 	select SND_SOC_UDA1380
 	select SND_SOC_WM8510
 	select SND_SOC_WM8580
@@ -93,3 +94,6 @@ config SND_SOC_TLV320AIC26
 config SND_SOC_TLV320AIC3X
 	tristate
 	depends on I2C
+
+config SND_SOC_SSM2602
+	tristate

sound/soc/codecs/Makefile

@@ -15,6 +15,7 @@ snd-soc-wm9713-objs := wm9713.o
 snd-soc-cs4270-objs := cs4270.o
 snd-soc-tlv320aic26-objs := tlv320aic26.o
 snd-soc-tlv320aic3x-objs := tlv320aic3x.o
+snd-soc-ssm2602-objs := ssm2602.o
 
 obj-$(CONFIG_SND_SOC_AC97_CODEC)	+= snd-soc-ac97.o
 obj-$(CONFIG_SND_SOC_AD1980)	+= snd-soc-ad1980.o
@@ -33,3 +34,4 @@ obj-$(CONFIG_SND_SOC_WM9713)	+= snd-soc-wm9713.o
 obj-$(CONFIG_SND_SOC_CS4270)	+= snd-soc-cs4270.o
 obj-$(CONFIG_SND_SOC_TLV320AIC26)	+= snd-soc-tlv320aic26.o
 obj-$(CONFIG_SND_SOC_TLV320AIC3X)	+= snd-soc-tlv320aic3x.o
+obj-$(CONFIG_SND_SOC_SSM2602)	+= snd-soc-ssm2602.o

sound/soc/codecs/ssm2602.h

+/*
+ * File:         sound/soc/codecs/ssm2602.h
+ * Author:       Cliff Cai <Cliff.Cai@analog.com>
+ *
+ * Created:      Tue June 06 2008
+ *
+ * Modified:
+ *               Copyright 2008 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 _SSM2602_H
+#define _SSM2602_H
+
+/* SSM2602 Codec Register definitions */
+
+#define SSM2602_LINVOL   0x00
+#define SSM2602_RINVOL   0x01
+#define SSM2602_LOUT1V   0x02
+#define SSM2602_ROUT1V   0x03
+#define SSM2602_APANA    0x04
+#define SSM2602_APDIGI   0x05
+#define SSM2602_PWR      0x06
+#define SSM2602_IFACE    0x07
+#define SSM2602_SRATE    0x08
+#define SSM2602_ACTIVE   0x09
+#define SSM2602_RESET	 0x0f
+
+/*SSM2602 Codec Register Field definitions
+ *(Mask value to extract the corresponding Register field)
+ */
+
+/*Left ADC Volume Control (SSM2602_REG_LEFT_ADC_VOL)*/
+#define     LINVOL_LIN_VOL                0x01F   /* Left Channel PGA Volume control                      */
+#define     LINVOL_LIN_ENABLE_MUTE        0x080   /* Left Channel Input Mute                              */
+#define     LINVOL_LRIN_BOTH              0x100   /* Left Channel Line Input Volume update                */
+
+/*Right ADC Volume Control (SSM2602_REG_RIGHT_ADC_VOL)*/
+#define     RINVOL_RIN_VOL                0x01F   /* Right Channel PGA Volume control                     */
+#define     RINVOL_RIN_ENABLE_MUTE        0x080   /* Right Channel Input Mute                             */
+#define     RINVOL_RLIN_BOTH              0x100   /* Right Channel Line Input Volume update               */
+
+/*Left DAC Volume Control (SSM2602_REG_LEFT_DAC_VOL)*/
+#define     LOUT1V_LHP_VOL                0x07F   /* Left Channel Headphone volume control                */
+#define     LOUT1V_ENABLE_LZC             0x080   /* Left Channel Zero cross detect enable                */
+#define     LOUT1V_LRHP_BOTH              0x100   /* Left Channel Headphone volume update                 */
+
+/*Right DAC Volume Control (SSM2602_REG_RIGHT_DAC_VOL)*/
+#define     ROUT1V_RHP_VOL                0x07F   /* Right Channel Headphone volume control               */
+#define     ROUT1V_ENABLE_RZC             0x080   /* Right Channel Zero cross detect enable               */
+#define     ROUT1V_RLHP_BOTH              0x100   /* Right Channel Headphone volume update                */
+
+/*Analogue Audio Path Control (SSM2602_REG_ANALOGUE_PATH)*/
+#define     APANA_ENABLE_MIC_BOOST       0x001   /* Primary Microphone Amplifier gain booster control    */
+#define     APANA_ENABLE_MIC_MUTE        0x002   /* Microphone Mute Control                              */
+#define     APANA_ADC_IN_SELECT          0x004   /* Microphone/Line IN select to ADC (1=MIC, 0=Line In)  */
+#define     APANA_ENABLE_BYPASS          0x008   /* Line input bypass to line output                     */
+#define     APANA_SELECT_DAC             0x010   /* Select DAC (1=Select DAC, 0=Don't Select DAC)        */
+#define     APANA_ENABLE_SIDETONE        0x020   /* Enable/Disable Side Tone                             */
+#define     APANA_SIDETONE_ATTN          0x0C0   /* Side Tone Attenuation                                */
+#define     APANA_ENABLE_MIC_BOOST2      0x100   /* Secondary Microphone Amplifier gain booster control  */
+
+/*Digital Audio Path Control (SSM2602_REG_DIGITAL_PATH)*/
+#define     APDIGI_ENABLE_ADC_HPF         0x001   /* Enable/Disable ADC Highpass Filter                   */
+#define     APDIGI_DE_EMPHASIS            0x006   /* De-Emphasis Control                                  */
+#define     APDIGI_ENABLE_DAC_MUTE        0x008   /* DAC Mute Control                                     */
+#define     APDIGI_STORE_OFFSET           0x010   /* Store/Clear DC offset when HPF is disabled           */
+
+/*Power Down Control (SSM2602_REG_POWER)
+ *(1=Enable PowerDown, 0=Disable PowerDown)
+ */
+#define     PWR_LINE_IN_PDN            0x001   /* Line Input Power Down                                */
+#define     PWR_MIC_PDN                0x002   /* Microphone Input & Bias Power Down                   */
+#define     PWR_ADC_PDN                0x004   /* ADC Power Down                                       */
+#define     PWR_DAC_PDN                0x008   /* DAC Power Down                                       */
+#define     PWR_OUT_PDN                0x010   /* Outputs Power Down                                   */
+#define     PWR_OSC_PDN                0x020   /* Oscillator Power Down                                */
+#define     PWR_CLK_OUT_PDN            0x040   /* CLKOUT Power Down                                    */
+#define     PWR_POWER_OFF              0x080   /* POWEROFF Mode                                        */
+
+/*Digital Audio Interface Format (SSM2602_REG_DIGITAL_IFACE)*/
+#define     IFACE_IFACE_FORMAT           0x003   /* Digital Audio input format control                   */
+#define     IFACE_AUDIO_DATA_LEN         0x00C   /* Audio Data word length control                       */
+#define     IFACE_DAC_LR_POLARITY        0x010   /* Polarity Control for clocks in RJ,LJ and I2S modes   */
+#define     IFACE_DAC_LR_SWAP            0x020   /* Swap DAC data control                                */
+#define     IFACE_ENABLE_MASTER          0x040   /* Enable/Disable Master Mode                           */
+#define     IFACE_BCLK_INVERT            0x080   /* Bit Clock Inversion control                          */
+
+/*Sampling Control (SSM2602_REG_SAMPLING_CTRL)*/
+#define     SRATE_ENABLE_USB_MODE        0x001   /* Enable/Disable USB Mode                              */
+#define     SRATE_BOS_RATE               0x002   /* Base Over-Sampling rate                              */
+#define     SRATE_SAMPLE_RATE            0x03C   /* Clock setting condition (Sampling rate control)      */
+#define     SRATE_CORECLK_DIV2           0x040   /* Core Clock divider select                            */
+#define     SRATE_CLKOUT_DIV2            0x080   /* Clock Out divider select                             */
+
+/*Active Control (SSM2602_REG_ACTIVE_CTRL)*/
+#define     ACTIVE_ACTIVATE_CODEC         0x001   /* Activate Codec Digital Audio Interface               */
+
+/*********************************************************************/
+
+#define SSM2602_CACHEREGNUM 	10
+
+#define SSM2602_SYSCLK	0
+#define SSM2602_DAI		0
+
+struct ssm2602_setup_data {
+	int i2c_bus;
+	unsigned short i2c_address;
+};
+
+extern struct snd_soc_dai ssm2602_dai;
+extern struct snd_soc_codec_device soc_codec_dev_ssm2602;
+
+#endif