Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 773 insertions, 0 deletions

diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c
new file mode 100644
index 00000000..de2b2054
--- /dev/null
+++ b/sound/soc/codecs/ssm2602.c
@@ -0,0 +1,773 @@
+/*
+ * File:         sound/soc/codecs/ssm2602.c
+ * Author:       Cliff Cai <Cliff.Cai@analog.com>
+ *
+ * Created:      Tue June 06 2008
+ * Description:  Driver for ssm2602 sound chip
+ *
+ * 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
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/spi/spi.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+
+#include "ssm2602.h"
+
+#define SSM2602_VERSION "0.1"
+
+enum ssm2602_type {
+	SSM2602,
+	SSM2604,
+};
+
+/* codec private data */
+struct ssm2602_priv {
+	unsigned int sysclk;
+	enum snd_soc_control_type control_type;
+	struct snd_pcm_substream *master_substream;
+	struct snd_pcm_substream *slave_substream;
+
+	enum ssm2602_type type;
+	unsigned int clk_out_pwr;
+};
+
+/*
+ * ssm2602 register cache
+ * We can't read the ssm2602 register space when we are
+ * using 2 wire for device control, so we cache them instead.
+ * There is no point in caching the reset register
+ */
+static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = {
+	0x0097, 0x0097, 0x0079, 0x0079,
+	0x000a, 0x0008, 0x009f, 0x000a,
+	0x0000, 0x0000
+};
+
+#define ssm2602_reset(c)	snd_soc_write(c, SSM2602_RESET, 0)
+
+/*Appending several "None"s just for OSS mixer use*/
+static const char *ssm2602_input_select[] = {
+	"Line", "Mic", "None", "None", "None",
+	"None", "None", "None",
+};
+
+static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
+
+static const struct soc_enum ssm2602_enum[] = {
+	SOC_ENUM_SINGLE(SSM2602_APANA, 2, 2, ssm2602_input_select),
+	SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, 4, ssm2602_deemph),
+};
+
+static const unsigned int ssm260x_outmix_tlv[] = {
+	TLV_DB_RANGE_HEAD(2),
+	0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
+	48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0),
+};
+
+static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
+static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
+
+static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
+SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
+	ssm260x_inpga_tlv),
+SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
+
+SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
+SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
+
+SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
+};
+
+static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
+SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
+	0, 127, 0, ssm260x_outmix_tlv),
+SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
+	7, 1, 0),
+SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
+	ssm260x_sidetone_tlv),
+
+SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
+SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
+SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
+};
+
+/* Output Mixer */
+static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
+SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
+SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
+SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
+};
+
+/* Input mux */
+static const struct snd_kcontrol_new ssm2602_input_mux_controls =
+SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
+
+static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
+SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
+SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
+SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
+
+SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
+
+SND_SOC_DAPM_OUTPUT("LOUT"),
+SND_SOC_DAPM_OUTPUT("ROUT"),
+SND_SOC_DAPM_INPUT("RLINEIN"),
+SND_SOC_DAPM_INPUT("LLINEIN"),
+};
+
+static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
+SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
+	ssm260x_output_mixer_controls,
+	ARRAY_SIZE(ssm260x_output_mixer_controls)),
+
+SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
+SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
+
+SND_SOC_DAPM_OUTPUT("LHPOUT"),
+SND_SOC_DAPM_OUTPUT("RHPOUT"),
+SND_SOC_DAPM_INPUT("MICIN"),
+};
+
+static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
+SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
+	ssm260x_output_mixer_controls,
+	ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */
+};
+
+static const struct snd_soc_dapm_route ssm260x_routes[] = {
+	{"DAC", NULL, "Digital Core Power"},
+	{"ADC", NULL, "Digital Core Power"},
+
+	{"Output Mixer", "Line Bypass Switch", "Line Input"},
+	{"Output Mixer", "HiFi Playback Switch", "DAC"},
+
+	{"ROUT", NULL, "Output Mixer"},
+	{"LOUT", NULL, "Output Mixer"},
+
+	{"Line Input", NULL, "LLINEIN"},
+	{"Line Input", NULL, "RLINEIN"},
+};
+
+static const struct snd_soc_dapm_route ssm2602_routes[] = {
+	{"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
+
+	{"RHPOUT", NULL, "Output Mixer"},
+	{"LHPOUT", NULL, "Output Mixer"},
+
+	{"Input Mux", "Line", "Line Input"},
+	{"Input Mux", "Mic", "Mic Bias"},
+	{"ADC", NULL, "Input Mux"},
+
+	{"Mic Bias", NULL, "MICIN"},
+};
+
+static const struct snd_soc_dapm_route ssm2604_routes[] = {
+	{"ADC", NULL, "Line Input"},
+};
+
+struct ssm2602_coeff {
+	u32 mclk;
+	u32 rate;
+	u8 srate;
+};
+
+#define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
+
+/* codec mclk clock coefficients */
+static const struct ssm2602_coeff ssm2602_coeff_table[] = {
+	/* 48k */
+	{12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
+	{18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
+	{12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
+
+	/* 32k */
+	{12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
+	{18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
+	{12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
+
+	/* 8k */
+	{12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
+	{18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
+	{11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
+	{16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
+	{12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
+
+	/* 96k */
+	{12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
+	{18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
+	{12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
+
+	/* 44.1k */
+	{11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
+	{16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
+	{12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
+
+	/* 88.2k */
+	{11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
+	{16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
+	{12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
+};
+
+static inline int ssm2602_get_coeff(int mclk, int rate)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
+		if (ssm2602_coeff_table[i].rate == rate &&
+			ssm2602_coeff_table[i].mclk == mclk)
+			return ssm2602_coeff_table[i].srate;
+	}
+	return -EINVAL;
+}
+
+static int ssm2602_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params,
+	struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_codec *codec = rtd->codec;
+	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
+	u16 iface = snd_soc_read(codec, SSM2602_IFACE) & 0xfff3;
+	int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
+
+	if (substream == ssm2602->slave_substream) {
+		dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n");
+		return 0;
+	}
+
+	if (srate < 0)
+		return srate;
+
+	snd_soc_write(codec, SSM2602_SRATE, srate);
+
+	/* bit size */
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		break;
+	case SNDRV_PCM_FORMAT_S20_3LE:
+		iface |= 0x0004;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		iface |= 0x0008;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		iface |= 0x000c;
+		break;
+	}
+	snd_soc_write(codec, SSM2602_IFACE, iface);
+	return 0;
+}
+
+static int ssm2602_startup(struct snd_pcm_substream *substream,
+			   struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_codec *codec = rtd->codec;
+	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
+	struct snd_pcm_runtime *master_runtime;
+
+	/* The DAI has shared clocks so if we already have a playback or
+	 * capture going then constrain this substream to match it.
+	 * TODO: the ssm2602 allows pairs of non-matching PB/REC rates
+	 */
+	if (ssm2602->master_substream) {
+		master_runtime = ssm2602->master_substream->runtime;
+		dev_dbg(codec->dev, "Constraining to %d bits at %dHz\n",
+			master_runtime->sample_bits,
+			master_runtime->rate);
+
+		if (master_runtime->rate != 0)
+			snd_pcm_hw_constraint_minmax(substream->runtime,
+						     SNDRV_PCM_HW_PARAM_RATE,
+						     master_runtime->rate,
+						     master_runtime->rate);
+
+		if (master_runtime->sample_bits != 0)
+			snd_pcm_hw_constraint_minmax(substream->runtime,
+						     SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
+						     master_runtime->sample_bits,
+						     master_runtime->sample_bits);
+
+		ssm2602->slave_substream = substream;
+	} else
+		ssm2602->master_substream = substream;
+
+	return 0;
+}
+
+static void ssm2602_shutdown(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_codec *codec = rtd->codec;
+	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
+
+	if (ssm2602->master_substream == substream)
+		ssm2602->master_substream = ssm2602->slave_substream;
+
+	ssm2602->slave_substream = NULL;
+}
+
+
+static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
+{
+	struct snd_soc_codec *codec = dai->codec;
+
+	if (mute)
+		snd_soc_update_bits(codec, SSM2602_APDIGI,
+				    APDIGI_ENABLE_DAC_MUTE,
+				    APDIGI_ENABLE_DAC_MUTE);
+	else
+		snd_soc_update_bits(codec, SSM2602_APDIGI,
+				    APDIGI_ENABLE_DAC_MUTE, 0);
+	return 0;
+}
+
+static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+		int clk_id, unsigned int freq, int dir)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
+
+	if (dir == SND_SOC_CLOCK_IN) {
+		if (clk_id != SSM2602_SYSCLK)
+			return -EINVAL;
+
+		switch (freq) {
+		case 11289600:
+		case 12000000:
+		case 12288000:
+		case 16934400:
+		case 18432000:
+			ssm2602->sysclk = freq;
+			break;
+		default:
+			return -EINVAL;
+		}
+	} else {
+		unsigned int mask;
+
+		switch (clk_id) {
+		case SSM2602_CLK_CLKOUT:
+			mask = PWR_CLK_OUT_PDN;
+			break;
+		case SSM2602_CLK_XTO:
+			mask = PWR_OSC_PDN;
+			break;
+		default:
+			return -EINVAL;
+		}
+
+		if (freq == 0)
+			ssm2602->clk_out_pwr |= mask;
+		else
+			ssm2602->clk_out_pwr &= ~mask;
+
+		snd_soc_update_bits(codec, SSM2602_PWR,
+			PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
+	}
+
+	return 0;
+}
+
+static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
+		unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	u16 iface = 0;
+
+	/* set master/slave audio interface */
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM:
+		iface |= 0x0040;
+		break;
+	case SND_SOC_DAIFMT_CBS_CFS:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* interface format */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		iface |= 0x0002;
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		iface |= 0x0001;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		iface |= 0x0013;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		iface |= 0x0003;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* clock inversion */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		iface |= 0x0090;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		iface |= 0x0080;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		iface |= 0x0010;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* set iface */
+	snd_soc_write(codec, SSM2602_IFACE, iface);
+	return 0;
+}
+
+static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
+				 enum snd_soc_bias_level level)
+{
+	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
+
+	switch (level) {
+	case SND_SOC_BIAS_ON:
+		/* vref/mid on, osc and clkout on if enabled */
+		snd_soc_update_bits(codec, SSM2602_PWR,
+			PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
+			ssm2602->clk_out_pwr);
+		break;
+	case SND_SOC_BIAS_PREPARE:
+		break;
+	case SND_SOC_BIAS_STANDBY:
+		/* everything off except vref/vmid, */
+		snd_soc_update_bits(codec, SSM2602_PWR,
+			PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
+			PWR_CLK_OUT_PDN | PWR_OSC_PDN);
+		break;
+	case SND_SOC_BIAS_OFF:
+		/* everything off */
+		snd_soc_update_bits(codec, SSM2602_PWR,
+			PWR_POWER_OFF, PWR_POWER_OFF);
+		break;
+
+	}
+	codec->dapm.bias_level = level;
+	return 0;
+}
+
+#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_32000 |\
+		SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
+		SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
+
+#define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
+		SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+static const struct snd_soc_dai_ops ssm2602_dai_ops = {
+	.startup	= ssm2602_startup,
+	.hw_params	= ssm2602_hw_params,
+	.shutdown	= ssm2602_shutdown,
+	.digital_mute	= ssm2602_mute,
+	.set_sysclk	= ssm2602_set_dai_sysclk,
+	.set_fmt	= ssm2602_set_dai_fmt,
+};
+
+static struct snd_soc_dai_driver ssm2602_dai = {
+	.name = "ssm2602-hifi",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SSM2602_RATES,
+		.formats = SSM2602_FORMATS,},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SSM2602_RATES,
+		.formats = SSM2602_FORMATS,},
+	.ops = &ssm2602_dai_ops,
+};
+
+static int ssm2602_suspend(struct snd_soc_codec *codec)
+{
+	ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
+	return 0;
+}
+
+static int ssm2602_resume(struct snd_soc_codec *codec)
+{
+	snd_soc_cache_sync(codec);
+
+	ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+	return 0;
+}
+
+static int ssm2602_probe(struct snd_soc_codec *codec)
+{
+	struct snd_soc_dapm_context *dapm = &codec->dapm;
+	int ret;
+
+	snd_soc_update_bits(codec, SSM2602_LOUT1V,
+			    LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
+	snd_soc_update_bits(codec, SSM2602_ROUT1V,
+			    ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
+
+	ret = snd_soc_add_codec_controls(codec, ssm2602_snd_controls,
+			ARRAY_SIZE(ssm2602_snd_controls));
+	if (ret)
+		return ret;
+
+	ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
+			ARRAY_SIZE(ssm2602_dapm_widgets));
+	if (ret)
+		return ret;
+
+	return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
+			ARRAY_SIZE(ssm2602_routes));
+}
+
+static int ssm2604_probe(struct snd_soc_codec *codec)
+{
+	struct snd_soc_dapm_context *dapm = &codec->dapm;
+	int ret;
+
+	ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
+			ARRAY_SIZE(ssm2604_dapm_widgets));
+	if (ret)
+		return ret;
+
+	return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
+			ARRAY_SIZE(ssm2604_routes));
+}
+
+static int ssm260x_probe(struct snd_soc_codec *codec)
+{
+	struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
+	int ret;
+
+	pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION);
+
+	ret = snd_soc_codec_set_cache_io(codec, 7, 9, ssm2602->control_type);
+	if (ret < 0) {
+		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+		return ret;
+	}
+
+	ret = ssm2602_reset(codec);
+	if (ret < 0) {
+		dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
+		return ret;
+	}
+
+	/* set the update bits */
+	snd_soc_update_bits(codec, SSM2602_LINVOL,
+			    LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
+	snd_soc_update_bits(codec, SSM2602_RINVOL,
+			    RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
+	/*select Line in as default input*/
+	snd_soc_write(codec, SSM2602_APANA, APANA_SELECT_DAC |
+			APANA_ENABLE_MIC_BOOST);
+
+	switch (ssm2602->type) {
+	case SSM2602:
+		ret = ssm2602_probe(codec);
+		break;
+	case SSM2604:
+		ret = ssm2604_probe(codec);
+		break;
+	}
+
+	if (ret)
+		return ret;
+
+	ssm2602_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
+	return 0;
+}
+
+/* remove everything here */
+static int ssm2602_remove(struct snd_soc_codec *codec)
+{
+	ssm2602_set_bias_level(codec, SND_SOC_BIAS_OFF);
+	return 0;
+}
+
+static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = {
+	.probe =	ssm260x_probe,
+	.remove =	ssm2602_remove,
+	.suspend =	ssm2602_suspend,
+	.resume =	ssm2602_resume,
+	.set_bias_level = ssm2602_set_bias_level,
+	.reg_cache_size = ARRAY_SIZE(ssm2602_reg),
+	.reg_word_size = sizeof(u16),
+	.reg_cache_default = ssm2602_reg,
+
+	.controls = ssm260x_snd_controls,
+	.num_controls = ARRAY_SIZE(ssm260x_snd_controls),
+	.dapm_widgets = ssm260x_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
+	.dapm_routes = ssm260x_routes,
+	.num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
+};
+
+#if defined(CONFIG_SPI_MASTER)
+static int __devinit ssm2602_spi_probe(struct spi_device *spi)
+{
+	struct ssm2602_priv *ssm2602;
+	int ret;
+
+	ssm2602 = devm_kzalloc(&spi->dev, sizeof(struct ssm2602_priv),
+			       GFP_KERNEL);
+	if (ssm2602 == NULL)
+		return -ENOMEM;
+
+	spi_set_drvdata(spi, ssm2602);
+	ssm2602->control_type = SND_SOC_SPI;
+	ssm2602->type = SSM2602;
+
+	ret = snd_soc_register_codec(&spi->dev,
+			&soc_codec_dev_ssm2602, &ssm2602_dai, 1);
+	return ret;
+}
+
+static int __devexit ssm2602_spi_remove(struct spi_device *spi)
+{
+	snd_soc_unregister_codec(&spi->dev);
+	return 0;
+}
+
+static struct spi_driver ssm2602_spi_driver = {
+	.driver = {
+		.name	= "ssm2602",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= ssm2602_spi_probe,
+	.remove		= __devexit_p(ssm2602_spi_remove),
+};
+#endif
+
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+/*
+ * ssm2602 2 wire address is determined by GPIO5
+ * state during powerup.
+ *    low  = 0x1a
+ *    high = 0x1b
+ */
+static int __devinit ssm2602_i2c_probe(struct i2c_client *i2c,
+			     const struct i2c_device_id *id)
+{
+	struct ssm2602_priv *ssm2602;
+	int ret;
+
+	ssm2602 = devm_kzalloc(&i2c->dev, sizeof(struct ssm2602_priv),
+			       GFP_KERNEL);
+	if (ssm2602 == NULL)
+		return -ENOMEM;
+
+	i2c_set_clientdata(i2c, ssm2602);
+	ssm2602->control_type = SND_SOC_I2C;
+	ssm2602->type = id->driver_data;
+
+	ret = snd_soc_register_codec(&i2c->dev,
+			&soc_codec_dev_ssm2602, &ssm2602_dai, 1);
+	return ret;
+}
+
+static int __devexit ssm2602_i2c_remove(struct i2c_client *client)
+{
+	snd_soc_unregister_codec(&client->dev);
+	return 0;
+}
+
+static const struct i2c_device_id ssm2602_i2c_id[] = {
+	{ "ssm2602", SSM2602 },
+	{ "ssm2603", SSM2602 },
+	{ "ssm2604", SSM2604 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, ssm2602_i2c_id);
+
+/* corgi i2c codec control layer */
+static struct i2c_driver ssm2602_i2c_driver = {
+	.driver = {
+		.name = "ssm2602",
+		.owner = THIS_MODULE,
+	},
+	.probe = ssm2602_i2c_probe,
+	.remove = __devexit_p(ssm2602_i2c_remove),
+	.id_table = ssm2602_i2c_id,
+};
+#endif
+
+
+static int __init ssm2602_modinit(void)
+{
+	int ret = 0;
+
+#if defined(CONFIG_SPI_MASTER)
+	ret = spi_register_driver(&ssm2602_spi_driver);
+	if (ret)
+		return ret;
+#endif
+
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+	ret = i2c_add_driver(&ssm2602_i2c_driver);
+	if (ret)
+		return ret;
+#endif
+
+	return ret;
+}
+module_init(ssm2602_modinit);
+
+static void __exit ssm2602_exit(void)
+{
+#if defined(CONFIG_SPI_MASTER)
+	spi_unregister_driver(&ssm2602_spi_driver);
+#endif
+
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+	i2c_del_driver(&ssm2602_i2c_driver);
+#endif
+}
+module_exit(ssm2602_exit);
+
+MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
+MODULE_AUTHOR("Cliff Cai");
+MODULE_LICENSE("GPL");