Staging: sst: Intel SST audio driver

This is the Intel SST audio driver.

As compared to the previous versions it has all the printks and other stuff
noted cleaned up and more hardware support. The Aava support is disabled in
this patch (is_aava resolves to 0) because the Aava board detection logic
is not yet upstream.

The driver itself is a combination of a traditional ALSA driver and a
hardware assisted offload driver which can play audio while the processor
is asleep but which can't do all the more interactive stuff.

In the general case most software would use the ALSA interface, but the
other interface is needed for certain classes of use such as music playback
on highly power consumption sensitive devices.

This is going to staging primarily because it depends upon the staging memrar
driver.

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Harsha Priya <priya.harsha@intel.com>
[Merged together and tweaked for -next]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 1001 insertions, 0 deletions

diff --git a/drivers/staging/intel_sst/intelmid_v2_control.c b/drivers/staging/intel_sst/intelmid_v2_control.c
new file mode 100644
index 0000000..3a7de76
--- /dev/null
+++ b/drivers/staging/intel_sst/intelmid_v2_control.c
@@ -0,0 +1,1001 @@
+/*
+ *  intelmid_v2_control.c - Intel Sound card driver for MID
+ *
+ *  Copyright (C) 2008-10 Intel Corp
+ *  Authors:	Vinod Koul <vinod.koul@intel.com>
+ *		Harsha Priya <priya.harsha@intel.com>
+ *		KP Jeeja <jeeja.kp@intel.com>
+ *		Dharageswari R <dharageswari.r@intel.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; version 2 of the License.
+ *
+ *  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, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  This file contains the control operations of vendor 3
+ */
+
+#include <linux/pci.h>
+#include <linux/file.h>
+#include "intel_sst.h"
+#include "intelmid_snd_control.h"
+
+enum reg_v3 {
+	VAUDIOCNT = 0x51,
+	VOICEPORT1 = 0x100,
+	VOICEPORT2 = 0x101,
+	AUDIOPORT1 = 0x102,
+	AUDIOPORT2 = 0x103,
+	ADCSAMPLERATE = 0x104,
+	DMICCTRL1 = 0x105,
+	DMICCTRL2 = 0x106,
+	MICCTRL = 0x107,
+	MICSELVOL = 0x108,
+	LILSEL = 0x109,
+	LIRSEL = 0x10a,
+	VOICEVOL = 0x10b,
+	AUDIOLVOL = 0x10c,
+	AUDIORVOL = 0x10d,
+	LMUTE = 0x10e,
+	RMUTE = 0x10f,
+	POWERCTRL1 = 0x110,
+	POWERCTRL2 = 0x111,
+	DRVPOWERCTRL = 0x112,
+	VREFPLL = 0x113,
+	PCMBUFCTRL = 0x114,
+	SOFTMUTE = 0x115,
+	DTMFPATH = 0x116,
+	DTMFVOL = 0x117,
+	DTMFFREQ = 0x118,
+	DTMFHFREQ = 0x119,
+	DTMFLFREQ = 0x11a,
+	DTMFCTRL = 0x11b,
+	DTMFASON = 0x11c,
+	DTMFASOFF = 0x11d,
+	DTMFASINUM = 0x11e,
+	CLASSDVOL = 0x11f,
+	VOICEDACAVOL = 0x120,
+	AUDDACAVOL = 0x121,
+	LOMUTEVOL = 0x122,
+	HPLVOL = 0x123,
+	HPRVOL = 0x124,
+	MONOVOL = 0x125,
+	LINEOUTMIXVOL = 0x126,
+	EPMIXVOL = 0x127,
+	LINEOUTLSEL = 0x128,
+	LINEOUTRSEL = 0x129,
+	EPMIXOUTSEL = 0x12a,
+	HPLMIXSEL = 0x12b,
+	HPRMIXSEL = 0x12c,
+	LOANTIPOP = 0x12d,
+};
+
+/****
+ * nc_init_card - initilize the sound card
+ *
+ * This initilizes the audio paths to know values in case of this sound card
+ */
+static int nc_init_card(void)
+{
+	struct sc_reg_access sc_access[] = {
+		{VAUDIOCNT, 0x25, 0},
+		{VOICEPORT1, 0x00, 0},
+		{VOICEPORT2, 0x00, 0},
+		{AUDIOPORT1, 0x98, 0},
+		{AUDIOPORT2, 0x09, 0},
+		{AUDIOLVOL, 0x00, 0},
+		{AUDIORVOL, 0x00, 0},
+		{LMUTE, 0x03, 0},
+		{RMUTE, 0x03, 0},
+		{POWERCTRL1, 0x00, 0},
+		{POWERCTRL2, 0x00, 0},
+		{DRVPOWERCTRL, 0x00, 0},
+		{VREFPLL, 0x10, 0},
+		{HPLMIXSEL, 0xee, 0},
+		{HPRMIXSEL, 0xf6, 0},
+		{PCMBUFCTRL, 0x0, 0},
+		{VOICEVOL, 0x0e, 0},
+		{HPLVOL, 0x06, 0},
+		{HPRVOL, 0x06, 0},
+		{MICCTRL, 0x41, 0x00},
+		{ADCSAMPLERATE, 0x8B, 0x00},
+		{MICSELVOL, 0x5B, 0x00},
+		{LILSEL, 0x06, 0},
+		{LIRSEL, 0x46, 0},
+		{LOANTIPOP, 0x00, 0},
+		{DMICCTRL1, 0x40, 0},
+	};
+	snd_pmic_ops_nc.card_status = SND_CARD_INIT_DONE;
+	snd_pmic_ops_nc.master_mute = UNMUTE;
+	snd_pmic_ops_nc.mute_status = UNMUTE;
+	sst_sc_reg_access(sc_access, PMIC_WRITE, 26);
+	pr_debug("sst: init complete!!\n");
+	return 0;
+}
+
+static int nc_enable_audiodac(int value)
+{
+	struct sc_reg_access sc_access[3];
+	int mute_val = 0;
+
+	if (snd_pmic_ops_nc.mute_status == MUTE)
+		return 0;
+
+	if (((snd_pmic_ops_nc.output_dev_id == MONO_EARPIECE) ||
+		(snd_pmic_ops_nc.output_dev_id == INTERNAL_SPKR)) &&
+		(value == UNMUTE))
+		return 0;
+	if (value == UNMUTE) {
+			/* unmute the system, set the 7th bit to zero */
+			mute_val = 0x00;
+		} else {
+			/* MUTE:Set the seventh bit */
+			mute_val = 0x04;
+
+		}
+		sc_access[0].reg_addr = LMUTE;
+		sc_access[1].reg_addr = RMUTE;
+		sc_access[0].mask = sc_access[1].mask = MASK2;
+		sc_access[0].value = sc_access[1].value = mute_val;
+
+		if (snd_pmic_ops_nc.num_channel == 1)
+			sc_access[1].value = 0x04;
+		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
+
+}
+
+static int nc_power_up_pb(unsigned int port)
+{
+	struct sc_reg_access sc_access[7];
+	int retval = 0;
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+	if (port == 0xFF)
+		return 0;
+	nc_enable_audiodac(MUTE);
+	msleep(30);
+
+	pr_debug("sst: powering up pb....\n");
+
+	sc_access[0].reg_addr = VAUDIOCNT;
+	sc_access[0].value = 0x27;
+	sc_access[0].mask = 0x27;
+	sc_access[1].reg_addr = VREFPLL;
+	if (port == 0) {
+		sc_access[1].value = 0x3A;
+		sc_access[1].mask = 0x3A;
+	} else if (port == 1) {
+		sc_access[1].value = 0x35;
+		sc_access[1].mask = 0x35;
+	}
+	retval =  sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
+
+
+
+	sc_access[0].reg_addr = POWERCTRL1;
+	if (port == 0) {
+		sc_access[0].value = 0x40;
+		sc_access[0].mask = 0x40;
+	} else if (port == 1) {
+		sc_access[0].value = 0x01;
+		sc_access[0].mask = 0x01;
+	}
+	sc_access[1].reg_addr = POWERCTRL2;
+	sc_access[1].value = 0x0C;
+	sc_access[1].mask = 0x0C;
+
+	sc_access[2].reg_addr = DRVPOWERCTRL;
+	sc_access[2].value = 0x86;
+	sc_access[2].mask = 0x86;
+
+	sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 3);
+
+	msleep(30);
+
+	return nc_enable_audiodac(UNMUTE);
+
+}
+
+static int nc_power_up_cp(unsigned int port)
+{
+	struct sc_reg_access sc_access[5];
+	int retval = 0;
+
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+
+
+	pr_debug("sst: powering up cp....\n");
+
+	if (port == 0xFF)
+		return 0;
+	sc_access[0].reg_addr = VAUDIOCNT;
+	sc_access[0].value = 0x27;
+	sc_access[0].mask = 0x27;
+	sc_access[1].reg_addr = VREFPLL;
+	if (port == 0) {
+		sc_access[1].value = 0x3E;
+		sc_access[1].mask = 0x3E;
+	} else if (port == 1) {
+		sc_access[1].value = 0x35;
+		sc_access[1].mask = 0x35;
+	}
+
+	retval =  sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
+
+
+	sc_access[0].reg_addr = POWERCTRL1;
+	if (port == 0) {
+		sc_access[0].value = 0xB4;
+		sc_access[0].mask = 0xB4;
+	} else if (port == 1) {
+		sc_access[0].value = 0xBF;
+		sc_access[0].mask = 0xBF;
+	}
+	sc_access[1].reg_addr = POWERCTRL2;
+	if (port == 0) {
+		sc_access[1].value = 0x0C;
+		sc_access[1].mask = 0x0C;
+	} else if (port == 1) {
+		sc_access[1].value = 0x02;
+		sc_access[1].mask = 0x02;
+	}
+
+	return  sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
+
+}
+
+static int nc_power_down(void)
+{
+	int retval = 0;
+	struct sc_reg_access sc_access[5];
+
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+	nc_enable_audiodac(MUTE);
+
+
+	pr_debug("sst: powering dn nc_power_down ....\n");
+
+	msleep(30);
+
+	sc_access[0].reg_addr = DRVPOWERCTRL;
+	sc_access[0].value = 0x00;
+	sc_access[0].mask = 0x00;
+
+	sst_sc_reg_access(sc_access, PMIC_WRITE, 1);
+
+	sc_access[0].reg_addr = POWERCTRL1;
+	sc_access[0].value = 0x00;
+	sc_access[0].mask = 0x00;
+
+	sc_access[1].reg_addr = POWERCTRL2;
+	sc_access[1].value = 0x00;
+	sc_access[1].mask = 0x00;
+
+
+
+	sst_sc_reg_access(sc_access, PMIC_WRITE, 2);
+
+	msleep(30);
+	sc_access[0].reg_addr = VREFPLL;
+	sc_access[0].value = 0x10;
+	sc_access[0].mask = 0x10;
+
+	sc_access[1].reg_addr = VAUDIOCNT;
+	sc_access[1].value = 0x25;
+	sc_access[1].mask = 0x25;
+
+
+	retval =  sst_sc_reg_access(sc_access, PMIC_WRITE, 2);
+
+	msleep(30);
+	return nc_enable_audiodac(UNMUTE);
+}
+
+static int nc_power_down_pb(void)
+{
+
+	int retval = 0;
+	struct sc_reg_access sc_access[5];
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+
+	pr_debug("sst: powering dn pb....\n");
+
+	nc_enable_audiodac(MUTE);
+
+
+	msleep(30);
+
+
+	sc_access[0].reg_addr = DRVPOWERCTRL;
+	sc_access[0].value = 0x00;
+	sc_access[0].mask = 0x00;
+
+	sst_sc_reg_access(sc_access, PMIC_WRITE, 1);
+
+	msleep(30);
+
+	sc_access[0].reg_addr = POWERCTRL1;
+	sc_access[0].value = 0x00;
+	sc_access[0].mask = 0x41;
+
+	sc_access[1].reg_addr = POWERCTRL2;
+	sc_access[1].value = 0x00;
+	sc_access[1].mask = 0x0C;
+
+	sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
+
+	msleep(30);
+
+	return nc_enable_audiodac(UNMUTE);
+
+
+}
+
+static int nc_power_down_cp(void)
+{
+	struct sc_reg_access sc_access[] = {
+		{POWERCTRL1, 0x00, 0xBE},
+		{POWERCTRL2, 0x00, 0x02},
+	};
+	int retval = 0;
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+
+	pr_debug("sst: powering dn cp....\n");
+	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
+}
+
+static int nc_set_pcm_voice_params(void)
+{
+	struct sc_reg_access sc_access[] = {
+			{0x100, 0xD5, 0},
+			{0x101, 0x08, 0},
+			{0x104, 0x03, 0},
+			{0x107, 0x10, 0},
+			{0x10B, 0x0E, 0},
+			{0x10E, 0x03, 0},
+			{0x10F, 0x03, 0},
+			{0x114, 0x13, 0},
+			{0x115, 0x00, 0},
+			{0x128, 0xFE, 0},
+			{0x129, 0xFE, 0},
+			{0x12A, 0xFE, 0},
+			{0x12B, 0xDE, 0},
+			{0x12C, 0xDE, 0},
+	};
+	int retval = 0;
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+
+	sst_sc_reg_access(sc_access, PMIC_WRITE, 14);
+	pr_debug("sst: Voice parameters set successfully!!\n");
+	return 0;
+}
+
+
+static int nc_set_pcm_audio_params(int sfreq, int word_size, int num_channel)
+{
+	int config2 = 0;
+	struct sc_reg_access sc_access;
+	int retval = 0;
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+
+	switch (sfreq) {
+	case 8000:
+		config2 = 0x00;
+		break;
+	case 11025:
+		config2 = 0x01;
+		break;
+	case 12000:
+		config2 = 0x02;
+		break;
+	case 16000:
+		config2 = 0x03;
+		break;
+	case 22050:
+		config2 = 0x04;
+		break;
+	case 24000:
+		config2 = 0x05;
+		break;
+	case 32000:
+		config2 = 0x07;
+		break;
+	case 44100:
+		config2 = 0x08;
+		break;
+	case 48000:
+		config2 = 0x09;
+		break;
+	}
+
+	snd_pmic_ops_nc.num_channel = num_channel;
+	if (snd_pmic_ops_nc.num_channel == 1)	{
+
+		sc_access.value = 0x07;
+		sc_access.reg_addr = RMUTE;
+		pr_debug("sst: RIGHT_HP_MUTE value%d\n", sc_access.value);
+		sc_access.mask = MASK2;
+		sst_sc_reg_access(&sc_access, PMIC_READ_MODIFY, 1);
+	} else {
+		sc_access.value = 0x00;
+		sc_access.reg_addr = RMUTE;
+		pr_debug("sst: RIGHT_HP_MUTE value %d\n", sc_access.value);
+		sc_access.mask = MASK2;
+		sst_sc_reg_access(&sc_access, PMIC_READ_MODIFY, 1);
+
+
+	}
+
+	pr_debug("sst: word_size = %d\n", word_size);
+
+	if (word_size == 24) {
+		sc_access.reg_addr = AUDIOPORT2;
+		sc_access.value = config2 | 0x10;
+		sc_access.mask = 0x1F;
+	} else {
+		sc_access.value = config2;
+		sc_access.mask = 0x1F;
+		sc_access.reg_addr = AUDIOPORT2;
+	}
+	sst_sc_reg_access(&sc_access, PMIC_READ_MODIFY, 1);
+
+	pr_debug("sst: word_size = %d\n", word_size);
+	sc_access.reg_addr = AUDIOPORT1;
+	sc_access.mask = MASK5|MASK4|MASK1|MASK0;
+	if (word_size == 16)
+		sc_access.value = 0x98;
+	else if (word_size == 24)
+		sc_access.value = 0xAB;
+
+	return sst_sc_reg_access(&sc_access, PMIC_READ_MODIFY, 1);
+
+
+
+}
+
+static int nc_set_selected_output_dev(u8 value)
+{
+	struct sc_reg_access sc_access_HP[] = {
+		{LMUTE, 0x02, 0x06},
+		{RMUTE, 0x02, 0x06}
+	};
+	struct sc_reg_access sc_access_IS[] = {
+		{LMUTE, 0x04, 0x06},
+		{RMUTE, 0x04, 0x06}
+	};
+	int retval = 0;
+
+	snd_pmic_ops_nc.output_dev_id = value;
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+	pr_debug("sst: nc set selected output:%d\n", value);
+	switch (value) {
+	case STEREO_HEADPHONE:
+		retval = sst_sc_reg_access(sc_access_HP, PMIC_WRITE, 2);
+		break;
+	case INTERNAL_SPKR:
+		retval = sst_sc_reg_access(sc_access_IS, PMIC_WRITE, 2);
+		break;
+	default:
+		pr_err("sst: rcvd illegal request: %d\n", value);
+		return -EINVAL;
+	}
+	return retval;
+}
+
+static int nc_audio_init(void)
+{
+	struct sc_reg_access sc_acces, sc_access[] = {
+			{0x100, 0x00, 0},
+			{0x101, 0x00, 0},
+			{0x104, 0x8B, 0},
+			{0x107, 0x11, 0},
+			{0x10B, 0x0E, 0},
+			{0x114, 0x00, 0},
+			{0x115, 0x00, 0},
+			{0x128, 0x00, 0},
+			{0x129, 0x00, 0},
+			{0x12A, 0x00, 0},
+			{0x12B, 0xee, 0},
+			{0x12C, 0xf6, 0},
+	};
+
+	sst_sc_reg_access(sc_access, PMIC_WRITE, 12);
+	pr_debug("sst: Audio Init successfully!!\n");
+
+	/*set output device */
+	nc_set_selected_output_dev(snd_pmic_ops_nc.output_dev_id);
+
+	if (snd_pmic_ops_nc.num_channel == 1) {
+		sc_acces.value = 0x07;
+		sc_acces.reg_addr = RMUTE;
+		pr_debug("sst: RIGHT_HP_MUTE value%d\n", sc_acces.value);
+		sc_acces.mask = MASK2;
+		sst_sc_reg_access(&sc_acces, PMIC_READ_MODIFY, 1);
+	} else {
+		sc_acces.value = 0x00;
+		sc_acces.reg_addr = RMUTE;
+		pr_debug("sst: RIGHT_HP_MUTE value%d\n", sc_acces.value);
+		sc_acces.mask = MASK2;
+		sst_sc_reg_access(&sc_acces, PMIC_READ_MODIFY, 1);
+	}
+
+	return 0;
+}
+
+static int nc_set_audio_port(int status)
+{
+	struct sc_reg_access sc_access[2] = {{0,},};
+	int retval = 0;
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+
+	if (status == DEACTIVATE) {
+		/* Deactivate audio port-tristate and power */
+		sc_access[0].value = 0x00;
+		sc_access[0].mask = MASK4|MASK5;
+		sc_access[0].reg_addr = AUDIOPORT1;
+		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
+	} else if (status == ACTIVATE) {
+		/* activate audio port */
+		nc_audio_init();
+		sc_access[0].value = 0x10;
+		sc_access[0].mask =  MASK4|MASK5 ;
+		sc_access[0].reg_addr = AUDIOPORT1;
+		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
+	} else
+		return -EINVAL;
+
+}
+
+static int nc_set_voice_port(int status)
+{
+	struct sc_reg_access sc_access[2] = {{0,},};
+	int retval = 0;
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+
+	if (status == DEACTIVATE) {
+		/* Activate Voice port */
+		sc_access[0].value = 0x00;
+		sc_access[0].mask = MASK4;
+		sc_access[0].reg_addr = VOICEPORT1;
+		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
+	} else if (status == ACTIVATE) {
+		/* Deactivate voice port */
+		nc_set_pcm_voice_params();
+		sc_access[0].value = 0x10;
+		sc_access[0].mask = MASK4;
+		sc_access[0].reg_addr = VOICEPORT1;
+		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
+	} else
+		return -EINVAL;
+}
+
+static int nc_set_mute(int dev_id, u8 value)
+{
+	struct sc_reg_access sc_access[3];
+	u8 mute_val, cap_mute;
+	int retval = 0;
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+
+	pr_debug("sst: set device id::%d, value %d\n", dev_id, value);
+
+	switch (dev_id) {
+	case PMIC_SND_MUTE_ALL:
+		pr_debug("sst: PMIC_SND_MUTE_ALL value %d\n", value);
+		snd_pmic_ops_nc.mute_status = value;
+		snd_pmic_ops_nc.master_mute = value;
+		if (value == UNMUTE) {
+			/* unmute the system, set the 7th bit to zero */
+			mute_val = cap_mute = 0x00;
+		} else {
+			/* MUTE:Set the seventh bit */
+			mute_val = 0x80;
+			cap_mute = 0x40;
+		}
+		sc_access[0].reg_addr = AUDIOLVOL;
+		sc_access[1].reg_addr = AUDIORVOL;
+		sc_access[0].mask = sc_access[1].mask = MASK7;
+		sc_access[0].value = sc_access[1].value = mute_val;
+		if (snd_pmic_ops_nc.num_channel == 1)
+				sc_access[1].value = 0x80;
+		if (!sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2)) {
+			sc_access[0].reg_addr = 0x109;
+			sc_access[1].reg_addr = 0x10a;
+			sc_access[2].reg_addr = 0x105;
+			sc_access[0].mask = sc_access[1].mask =
+				sc_access[2].mask = MASK6;
+			sc_access[0].value = sc_access[1].value =
+				sc_access[2].value = cap_mute;
+
+			if ((snd_pmic_ops_nc.input_dev_id == AMIC) ||
+				(snd_pmic_ops_nc.input_dev_id == DMIC))
+					sc_access[1].value = 0x40;
+			if (snd_pmic_ops_nc.input_dev_id == HS_MIC)
+					sc_access[0].value = 0x40;
+			retval = sst_sc_reg_access(sc_access,
+					PMIC_READ_MODIFY, 3);
+		}
+		break;
+	case PMIC_SND_HP_MIC_MUTE:
+		pr_debug("sst: PMIC_SND_HPMIC_MUTE value %d\n", value);
+		if (value == UNMUTE) {
+			/* unmute the system, set the 6th bit to one */
+			sc_access[0].value = 0x00;
+		} else {
+			/* mute the system, reset the 6th bit to zero */
+			sc_access[0].value = 0x40;
+		}
+		sc_access[0].reg_addr = LIRSEL;
+		sc_access[0].mask = MASK6;
+		retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
+		break;
+	case PMIC_SND_AMIC_MUTE:
+		pr_debug("sst: PMIC_SND_AMIC_MUTE value %d\n", value);
+		if (value == UNMUTE) {
+			/* unmute the system, set the 6th bit to one */
+			sc_access[0].value = 0x00;
+		} else {
+			/* mute the system, reset the 6th bit to zero */
+			sc_access[0].value = 0x40;
+		}
+		sc_access[0].reg_addr = LILSEL;
+		sc_access[0].mask = MASK6;
+		retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
+		break;
+
+	case PMIC_SND_DMIC_MUTE:
+		pr_debug("sst: INPUT_MUTE_DMIC value%d\n", value);
+		if (value == UNMUTE) {
+			/* unmute the system, set the 6th bit to one */
+			sc_access[1].value = 0x00;
+			sc_access[0].value = 0x00;
+		} else {
+			/* mute the system, reset the 6th bit to zero */
+			sc_access[1].value = 0x40;
+			sc_access[0].value = 0x40;
+		}
+		sc_access[0].reg_addr = DMICCTRL1;
+		sc_access[0].mask = MASK6;
+		sc_access[1].reg_addr = LILSEL;
+		sc_access[1].mask = MASK6;
+		retval = sst_sc_reg_access(sc_access,
+					PMIC_READ_MODIFY, 2);
+		break;
+
+	case PMIC_SND_LEFT_HP_MUTE:
+	case PMIC_SND_RIGHT_HP_MUTE:
+		snd_pmic_ops_nc.mute_status = value;
+		if (value == UNMUTE)
+			sc_access[0].value = 0x0;
+		else
+			sc_access[0].value = 0x04;
+
+		if (dev_id == PMIC_SND_LEFT_HP_MUTE) {
+			sc_access[0].reg_addr = LMUTE;
+			pr_debug("sst: LEFT_HP_MUTE value %d\n",
+					sc_access[0].value);
+		} else {
+			if (snd_pmic_ops_nc.num_channel == 1)
+				sc_access[0].value = 0x04;
+			sc_access[0].reg_addr = RMUTE;
+			pr_debug("sst: RIGHT_HP_MUTE value %d\n",
+					sc_access[0].value);
+		}
+		sc_access[0].mask = MASK2;
+		retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
+		break;
+	case PMIC_SND_LEFT_SPEAKER_MUTE:
+	case PMIC_SND_RIGHT_SPEAKER_MUTE:
+		if (value == UNMUTE)
+			sc_access[0].value = 0x00;
+		else
+			sc_access[0].value = 0x03;
+		sc_access[0].reg_addr = LMUTE;
+		pr_debug("sst: SPEAKER_MUTE %d\n", sc_access[0].value);
+		sc_access[0].mask = MASK1;
+		retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
+		break;
+	default:
+		return -EINVAL;
+	}
+	return retval ;
+
+}
+
+static int nc_set_vol(int dev_id, int value)
+{
+	struct sc_reg_access sc_access[3];
+	int retval = 0, entries = 0;
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+
+	pr_debug("sst: set volume:%d\n", dev_id);
+	switch (dev_id) {
+	case PMIC_SND_CAPTURE_VOL:
+		pr_debug("sst: PMIC_SND_CAPTURE_VOL:value::%d\n", value);
+		sc_access[0].value = sc_access[1].value =
+					sc_access[2].value = -value;
+		sc_access[0].mask = sc_access[1].mask = sc_access[2].mask =
+					(MASK0|MASK1|MASK2|MASK3|MASK4|MASK5);
+		sc_access[0].reg_addr = 0x10a;
+		sc_access[1].reg_addr = 0x109;
+		sc_access[2].reg_addr = 0x105;
+		entries = 3;
+		break;
+
+	case PMIC_SND_LEFT_PB_VOL:
+		pr_debug("sst: PMIC_SND_LEFT_HP_VOL %d\n", value);
+		sc_access[0].value = -value;
+		sc_access[0].reg_addr  = AUDIOLVOL;
+		sc_access[0].mask =
+			(MASK0|MASK1|MASK2|MASK3|MASK4|MASK5|MASK6);
+		entries = 1;
+		break;
+
+	case PMIC_SND_RIGHT_PB_VOL:
+		pr_debug("sst: PMIC_SND_RIGHT_HP_VOL value %d\n", value);
+		if (snd_pmic_ops_nc.num_channel == 1) {
+			sc_access[0].value = 0x04;
+		    sc_access[0].reg_addr = RMUTE;
+			sc_access[0].mask = MASK2;
+		} else {
+		sc_access[0].value = -value;
+		sc_access[0].reg_addr  = AUDIORVOL;
+		sc_access[0].mask =
+				(MASK0|MASK1|MASK2|MASK3|MASK4|MASK5|MASK6);
+		entries = 1;
+		}
+		break;
+
+	default:
+		return -EINVAL;
+
+	}
+	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, entries);
+}
+
+static int nc_set_selected_input_dev(u8 value)
+{
+	struct sc_reg_access sc_access[6];
+	u8 num_val;
+	int retval = 0;
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+	snd_pmic_ops_nc.input_dev_id = value;
+
+	pr_debug("sst: nc set selected input:%d\n", value);
+
+	switch (value) {
+	case AMIC:
+		pr_debug("sst: Selecting AMIC\n");
+		sc_access[0].reg_addr = 0x107;
+		sc_access[0].value = 0x40;
+		sc_access[0].mask =  MASK6|MASK4|MASK3|MASK1|MASK0;
+		sc_access[1].reg_addr = 0x10a;
+		sc_access[1].value = 0x40;
+		sc_access[1].mask = MASK6;
+		sc_access[2].reg_addr = 0x109;
+		sc_access[2].value = 0x00;
+		sc_access[2].mask = MASK6;
+		sc_access[3].reg_addr = 0x105;
+		sc_access[3].value = 0x40;
+		sc_access[3].mask = MASK6;
+		num_val = 4;
+		break;
+
+	case HS_MIC:
+		pr_debug("sst: Selecting HS_MIC\n");
+		sc_access[0].reg_addr = 0x107;
+		sc_access[0].mask =  MASK6|MASK4|MASK3|MASK1|MASK0;
+		sc_access[0].value = 0x10;
+		sc_access[1].reg_addr = 0x109;
+		sc_access[1].mask = MASK6;
+		sc_access[1].value = 0x40;
+		sc_access[2].reg_addr = 0x10a;
+		sc_access[2].mask = MASK6;
+		sc_access[2].value = 0x00;
+		sc_access[3].reg_addr = 0x105;
+		sc_access[3].value = 0x40;
+		sc_access[3].mask = MASK6;
+		num_val = 4;
+		break;
+
+	case DMIC:
+		pr_debug("sst: DMIC\n");
+		sc_access[0].reg_addr = 0x107;
+		sc_access[0].mask = MASK6|MASK4|MASK3|MASK1|MASK0;
+		sc_access[0].value = 0x0B;
+		sc_access[1].reg_addr = 0x105;
+		sc_access[1].value = 0x80;
+		sc_access[1].mask = MASK7|MASK6;
+		sc_access[2].reg_addr = 0x10a;
+		sc_access[2].value = 0x40;
+		sc_access[2].mask = MASK6;
+		sc_access[3].reg_addr = 0x109;
+		sc_access[3].mask = MASK6;
+		sc_access[3].value = 0x40;
+		num_val = 4;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, num_val);
+}
+
+static int nc_get_mute(int dev_id, u8 *value)
+{
+	int retval = 0, mask = 0;
+	struct sc_reg_access sc_access = {0,};
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+
+	pr_debug("sst: get mute::%d\n", dev_id);
+
+	switch (dev_id) {
+	case PMIC_SND_AMIC_MUTE:
+		pr_debug("sst: PMIC_SND_INPUT_MUTE_MIC1\n");
+		sc_access.reg_addr = LILSEL;
+		mask = MASK6;
+		break;
+	case PMIC_SND_HP_MIC_MUTE:
+		pr_debug("sst: PMIC_SND_INPUT_MUTE_MIC2\n");
+		sc_access.reg_addr = LIRSEL;
+		mask = MASK6;
+		break;
+	case PMIC_SND_LEFT_HP_MUTE:
+	case PMIC_SND_RIGHT_HP_MUTE:
+		mask = MASK2;
+		pr_debug("sst: PMIC_SN_LEFT/RIGHT_HP_MUTE\n");
+		if (dev_id == PMIC_SND_RIGHT_HP_MUTE)
+			sc_access.reg_addr = RMUTE;
+		else
+			sc_access.reg_addr = LMUTE;
+		break;
+
+	case PMIC_SND_LEFT_SPEAKER_MUTE:
+		pr_debug("sst: PMIC_MONO_EARPIECE_MUTE\n");
+		sc_access.reg_addr = RMUTE;
+		mask = MASK1;
+		break;
+	case PMIC_SND_DMIC_MUTE:
+		pr_debug("sst: PMIC_SND_INPUT_MUTE_DMIC\n");
+		sc_access.reg_addr = 0x105;
+		mask = MASK6;
+		break;
+	default:
+		return -EINVAL;
+
+	}
+	retval = sst_sc_reg_access(&sc_access, PMIC_READ, 1);
+	pr_debug("sst: reg value = %d\n", sc_access.value);
+	if (retval)
+		return retval;
+	*value = (sc_access.value) & mask;
+	pr_debug("sst: masked value = %d\n", *value);
+	if (*value)
+		*value = 0;
+	else
+		*value = 1;
+	pr_debug("sst: value returned = 0x%x\n", *value);
+	return retval;
+}
+
+static int nc_get_vol(int dev_id, int *value)
+{
+	int retval = 0, mask = 0;
+	struct sc_reg_access sc_access = {0,};
+
+	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
+		retval = nc_init_card();
+	if (retval)
+		return retval;
+
+	switch (dev_id) {
+	case PMIC_SND_CAPTURE_VOL:
+		pr_debug("sst: PMIC_SND_INPUT_CAPTURE_VOL\n");
+		sc_access.reg_addr =  LILSEL;
+		mask = (MASK0|MASK1|MASK2|MASK3|MASK4|MASK5);
+		break;
+
+	case PMIC_SND_RIGHT_PB_VOL:
+		pr_debug("sst: GET_VOLUME_PMIC_LEFT_HP_VOL\n");
+		sc_access.reg_addr = AUDIOLVOL;
+		mask = (MASK0|MASK1|MASK2|MASK3|MASK4|MASK5|MASK6);
+		break;
+
+	case PMIC_SND_LEFT_PB_VOL:
+		pr_debug("sst: GET_VOLUME_PMIC_RIGHT_HP_VOL\n");
+		sc_access.reg_addr = AUDIORVOL;
+		mask = (MASK0|MASK1|MASK2|MASK3|MASK4|MASK5|MASK6);
+		break;
+
+	default:
+		return -EINVAL;
+
+	}
+	retval = sst_sc_reg_access(&sc_access, PMIC_READ, 1);
+	pr_debug("sst: value read = 0x%x\n", sc_access.value);
+	*value = -((sc_access.value) & mask);
+	pr_debug("sst: get vol value returned = %d\n", *value);
+	return retval;
+}
+
+struct snd_pmic_ops snd_pmic_ops_nc = {
+	.set_input_dev	=	nc_set_selected_input_dev,
+	.set_output_dev =	nc_set_selected_output_dev,
+	.set_mute	=	nc_set_mute,
+	.get_mute	=	nc_get_mute,
+	.set_vol	=	nc_set_vol,
+	.get_vol	=	nc_get_vol,
+	.init_card	=	nc_init_card,
+	.set_pcm_audio_params	= nc_set_pcm_audio_params,
+	.set_pcm_voice_params	= nc_set_pcm_voice_params,
+	.set_voice_port = nc_set_voice_port,
+	.set_audio_port = nc_set_audio_port,
+	.power_up_pmic_pb =	nc_power_up_pb,
+	.power_up_pmic_cp =	nc_power_up_cp,
+	.power_down_pmic_pb =	nc_power_down_pb,
+	.power_down_pmic_cp =	nc_power_down_cp,
+	.power_down_pmic =	nc_power_down,
+};