media: video: tegra: fuse id support

Adds support to read fuse ID from OTP memory on
ov2710, ov9726, ov9772,  ar0832, and imx091 sensors.
Also includes macro-enabled fuse ID programming for
ov2710.  Adjusts data structure used by fuse ID ioctl
to include a field for fuse ID size.

Required by nvcamera version 1.8.0
Required by NVCS version 4.10.0

Bug 1198663

Change-Id: Ib3bb0e100e49aea2c6ce13cd069862476d7f4bb6
Signed-off-by: Phil Breczinski <pbreczinski@nvidia.com>
Reviewed-on: http://git-master/r/169187
(cherry picked from commit 0ce57617ee1f735759333a589aa2890559053fe0)
Reviewed-on: http://git-master/r/232254
Reviewed-by: Brian Bamsch <bbamsch@nvidia.com>
Tested-by: Brian Bamsch <bbamsch@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Jon Mayo <jmayo@nvidia.com>

15 files changed, 337 insertions, 61 deletions

diff --git a/drivers/media/video/tegra/ar0832_main.c b/drivers/media/video/tegra/ar0832_main.c
index c8859acc5929..58d07b53d41f 100644
--- a/drivers/media/video/tegra/ar0832_main.c
+++ b/drivers/media/video/tegra/ar0832_main.c
@@ -1,7 +1,7 @@
 /*
 * ar0832_main.c - Aptina AR0832 8M Bayer type sensor driver
 *
-* Copyright (c) 2011, NVIDIA, All Rights Reserved.
+* Copyright (c) 2011-2013, NVIDIA CORPORATION, All Rights Reserved.
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2. This program is licensed "as is" without any warranty of any
@@ -24,13 +24,14 @@
 #include <linux/module.h>
 
 #include <media/ar0832_main.h>
-
+#include <media/nvc.h>
 
 #define POS_ACTUAL_LOW			0
 #define POS_ACTUAL_HIGH			255
-#define SETTLE_TIME				100
-#define AR0832_SLEW_RATE_DISABLED  0
-#define AR0832_SLEW_RATE_SLOWEST   7
+#define SETTLE_TIME			100
+#define AR0832_SLEW_RATE_DISABLED	0
+#define AR0832_SLEW_RATE_SLOWEST	7
+#define AR0832_FUSE_ID_SIZE		16
 
 
 struct ar0832_sensor_info {
@@ -63,6 +64,7 @@ struct ar0832_dev {
 	int is_stereo;
 	u16 sensor_id_data;
 	struct dentry *debugdir;
+	struct nvc_fuseid fuse_id;
 };
 
 #define UpperByte16to8(x) ((u8)((x & 0xFF00) >> 8))
@@ -2116,6 +2118,63 @@ static long ar0832_set_focuser_capabilities(struct ar0832_dev *dev,
 	return 0;
 }
 
+static int ar0832_get_fuseid(struct ar0832_dev *dev)
+{
+	int ret = 0;
+	int i, timeout;
+	__u16 bak;
+	struct i2c_client *i2c_client = dev->i2c_client;
+
+	if (dev->fuse_id.size)
+		return 0;
+
+	ret = ar0832_write_reg16(i2c_client, 0x3052, 0x2704);
+	ret |= ar0832_read_reg16(i2c_client, 0x3054, &bak);
+	ret |= ar0832_write_reg16(i2c_client, 0x3054, bak | 0x0100);
+	ret |= ar0832_read_reg16(i2c_client, 0x3050, &bak);
+	ret |= ar0832_write_reg16(i2c_client, 0x3050, bak & 0x00ff);
+	ret |= ar0832_write_reg16(i2c_client, 0x3054, 0x0008);
+	ret |= ar0832_read_reg16(i2c_client, 0x304a, &bak);
+	ret |= ar0832_write_reg16(i2c_client, 0x304a, bak | 0x0010);
+
+	timeout = 0;
+	while (!(bak & 0x0020)) {
+		ret |= ar0832_read_reg16(i2c_client, 0x304a, &bak);
+		timeout += 1;
+		if (timeout >= 100) {
+			pr_info("ar0832: fuse ID read timed out\n");
+			return -EFAULT;
+		}
+	}
+
+	if (bak & 0x0040)
+		pr_info("ar0832: fuse ID read successfully\n");
+	else {
+		pr_info("ar0832: fuse ID read failed\n");
+		return -EFAULT;
+	}
+
+	/* OTP memory on ar0832 is larger than we are checking - may
+	 * may want to change which bytes are read in the future
+	 */
+	dev->fuse_id.size = AR0832_FUSE_ID_SIZE;
+	for (i = 0; i < 8; i++) {
+		if (i * 2 < dev->fuse_id.size) {
+			ret |= ar0832_read_reg16(i2c_client, 0x3800 + i, &bak);
+			dev->fuse_id.data[i * 2] =
+					(__u8)((bak >> 8) & 0x00ff);
+			if (i * 2 + 1 < dev->fuse_id.size)
+				dev->fuse_id.data[i * 2 + 1] =
+						(__u8)(bak & 0x00ff);
+		}
+	}
+
+	if (ret)
+		dev->fuse_id.size = 0;
+
+	return ret;
+}
+
 static long ar0832_ioctl(struct file *file,
 	unsigned int cmd, unsigned long arg)
 {
@@ -2283,6 +2342,22 @@ static long ar0832_ioctl(struct file *file,
 		}
 		return 0;
 
+	case AR0832_IOCTL_GET_FUSEID:
+	{
+		err = ar0832_get_fuseid(dev);
+		if (err) {
+			pr_err("%s %d %d\n", __func__, __LINE__, err);
+			return err;
+		}
+		if (copy_to_user((void __user *)arg,
+				&dev->fuse_id,
+				sizeof(struct nvc_fuseid))) {
+			pr_info("%s %d\n", __func__, __LINE__);
+			return -EFAULT;
+		}
+		return 0;
+	}
+
 	default:
 		dev_err(&i2c_client->dev, "(error) %s NONE IOCTL\n",
 			__func__);
diff --git a/drivers/media/video/tegra/imx091.c b/drivers/media/video/tegra/imx091.c
index 4137f0387622..59cde73af54d 100644
--- a/drivers/media/video/tegra/imx091.c
+++ b/drivers/media/video/tegra/imx091.c
@@ -44,6 +44,7 @@
 #define IMX091_LENS_VIEW_ANGLE_V	60400 /* / _INT2FLOAT_DIVISOR */
 #define IMX091_WAIT_MS 3
 #define IMX091_I2C_TABLE_MAX_ENTRIES	400
+#define IMX091_FUSE_ID_SIZE		8
 
 static u16 imx091_ids[] = {
 	0x0091,
@@ -88,6 +89,7 @@ struct imx091_info {
 	struct dentry *debugfs_root;
 	u16	i2c_reg;
 #endif
+	struct nvc_fuseid fuse_id;
 };
 
 struct imx091_reg {
@@ -2273,6 +2275,27 @@ static int imx091_param_wr(struct imx091_info *info, unsigned long arg)
 	}
 }
 
+static int imx091_get_fuse_id(struct imx091_info *info)
+{
+	int ret, i;
+
+	if (info->fuse_id.size)
+		return 0;
+
+	ret = imx091_i2c_wr8(info, 0x34C9, 0x10);
+
+	for (i = 0; i < IMX091_FUSE_ID_SIZE ; i++) {
+		ret |= imx091_i2c_rd8(info,
+				0x3580 + i,
+				&info->fuse_id.data[i]);
+	}
+
+	if (!ret)
+		info->fuse_id.size = i;
+
+	return ret;
+}
+
 static long imx091_ioctl(struct file *file,
 			 unsigned int cmd,
 			 unsigned long arg)
@@ -2289,6 +2312,22 @@ static long imx091_ioctl(struct file *file,
 	int err;
 
 	switch (cmd) {
+	case NVC_IOCTL_FUSE_ID:
+		err = imx091_get_fuse_id(info);
+
+		if (err) {
+			pr_err("%s %d %d\n", __func__, __LINE__, err);
+			return err;
+		}
+		if (copy_to_user((void __user *)arg,
+				&info->fuse_id,
+				sizeof(struct nvc_fuseid))) {
+			pr_err("%s: %d: fail copy fuse id to user space\n",
+				__func__, __LINE__);
+			return -EFAULT;
+		}
+		return 0;
+
 	case NVC_IOCTL_PARAM_WR:
 		err = imx091_param_wr(info, arg);
 		return err;
diff --git a/drivers/media/video/tegra/imx132.c b/drivers/media/video/tegra/imx132.c
index d2e3abf656d5..2dcb211cdbcd 100644
--- a/drivers/media/video/tegra/imx132.c
+++ b/drivers/media/video/tegra/imx132.c
@@ -24,6 +24,10 @@
 #include <linux/uaccess.h>
 #include <linux/regulator/consumer.h>
 #include <media/imx132.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <media/nvc.h>
 #include <linux/gpio.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
@@ -39,7 +43,7 @@ struct imx132_info {
 	struct miscdevice		miscdev_info;
 	int				mode;
 	struct imx132_power_rail	power;
-	struct imx132_sensordata	sensor_data;
+	struct nvc_fuseid		fuse_id;
 	struct i2c_client		*i2c_client;
 	struct imx132_platform_data	*pdata;
 	atomic_t			in_use;
@@ -48,6 +52,7 @@ struct imx132_info {
 #define IMX132_TABLE_WAIT_MS 0
 #define IMX132_TABLE_END 1
 #define IMX132_WAIT_MS 5
+#define IMX132_FUSE_ID_SIZE 8
 
 static struct imx132_reg mode_1976x1200[] = {
 	/* Stand by */
@@ -505,13 +510,13 @@ imx132_set_group_hold(struct imx132_info *info, struct imx132_ae *ae)
 	return 0;
 }
 
-static int imx132_get_sensor_id(struct imx132_info *info)
+static int imx132_get_fuse_id(struct imx132_info *info)
 {
 	int ret = 0;
 	int i;
 	u8 bak = 0;
 
-	if (info->sensor_data.fuse_id_size)
+	if (info->fuse_id.size)
 		return 0;
 
 	/*
@@ -520,13 +525,13 @@ static int imx132_get_sensor_id(struct imx132_info *info)
 	 */
 
 	ret |= imx132_write_reg(info->i2c_client, 0x34C9, 0x10);
-	for (i = 0; i < NUM_OF_SENSOR_ID_SPECIFIC_REG ; i++) {
+	for (i = 0; i < IMX132_FUSE_ID_SIZE ; i++) {
 		ret |= imx132_read_reg(info->i2c_client, 0x3580 + i, &bak);
-		info->sensor_data.fuse_id[i] = bak;
+		info->fuse_id.data[i] = bak;
 	}
 
 	if (!ret)
-		info->sensor_data.fuse_id_size = i;
+		info->fuse_id.size = i;
 
 	return ret;
 }
@@ -572,9 +577,9 @@ imx132_ioctl(struct file *file,
 		}
 		return 0;
 	}
-	case IMX132_IOCTL_GET_SENSORDATA:
+	case IMX132_IOCTL_GET_FUSEID:
 	{
-		err = imx132_get_sensor_id(info);
+		err = imx132_get_fuse_id(info);
 
 		if (err) {
 			dev_err(dev, "%s:Failed to get fuse id info.\n",
@@ -582,8 +587,8 @@ imx132_ioctl(struct file *file,
 			return err;
 		}
 		if (copy_to_user((void __user *)arg,
-				&info->sensor_data,
-				sizeof(struct imx132_sensordata))) {
+				&info->fuse_id,
+				sizeof(struct nvc_fuseid))) {
 			dev_info(dev, "%s:Fail copy fuse id to user space\n",
 				__func__);
 			return -EFAULT;
diff --git a/drivers/media/video/tegra/imx135.c b/drivers/media/video/tegra/imx135.c
index efff02e05fd5..0e123fe6915d 100644
--- a/drivers/media/video/tegra/imx135.c
+++ b/drivers/media/video/tegra/imx135.c
@@ -40,7 +40,7 @@ struct imx135_info {
 	struct miscdevice		miscdev_info;
 	int				mode;
 	struct imx135_power_rail	power;
-	struct imx135_sensordata	sensor_data;
+	struct nvc_fuseid		fuse_id;
 	struct i2c_client		*i2c_client;
 	struct imx135_platform_data	*pdata;
 	struct mutex			imx135_camera_lock;
@@ -2056,7 +2056,7 @@ static int imx135_get_sensor_id(struct imx135_info *info)
 	u8 bak = 0;
 
 	pr_info("%s\n", __func__);
-	if (info->sensor_data.fuse_id_size)
+	if (info->fuse_id.size)
 		return 0;
 
 	/* Note 1: If the sensor does not have power at this point
@@ -2066,11 +2066,11 @@ static int imx135_get_sensor_id(struct imx135_info *info)
 	ret |= imx135_write_reg(info->i2c_client, 0x3B00, 0x01);
 	for (i = 0; i < 9 ; i++) {
 		ret |= imx135_read_reg(info->i2c_client, 0x3B24 + i, &bak);
-		info->sensor_data.fuse_id[i] = bak;
+		info->fuse_id.data[i] = bak;
 	}
 
 	if (!ret)
-		info->sensor_data.fuse_id_size = i;
+		info->fuse_id.size = i;
 
 	/* Note 2: Need to clean up any action carried out in Note 1 */
 
@@ -2123,7 +2123,7 @@ imx135_ioctl(struct file *file,
 			}
 		return 0;
 	}
-	case IMX135_IOCTL_GET_SENSORDATA:
+	case IMX135_IOCTL_GET_FUSEID:
 	{
 		err = imx135_get_sensor_id(info);
 
@@ -2131,8 +2131,8 @@ imx135_ioctl(struct file *file,
 			pr_err("%s:Failed to get fuse id info.\n", __func__);
 			return err;
 		}
-		if (copy_to_user((void __user *)arg, &info->sensor_data,
-				sizeof(struct imx135_sensordata))) {
+		if (copy_to_user((void __user *)arg, &info->fuse_id,
+				sizeof(struct nvc_fuseid))) {
 			pr_info("%s:Failed to copy fuse id to user space\n",
 				__func__);
 			return -EFAULT;
diff --git a/drivers/media/video/tegra/ov2710.c b/drivers/media/video/tegra/ov2710.c
index a0ad166bd36c..28c041befb3a 100644
--- a/drivers/media/video/tegra/ov2710.c
+++ b/drivers/media/video/tegra/ov2710.c
@@ -1,7 +1,7 @@
 /*
  * ov2710.c - ov2710 sensor driver
  *
- * Copyright (c) 2011, NVIDIA, All Rights Reserved.
+ * Copyright (c) 2011-2013, NVIDIA CORPORATION, All Rights Reserved.
  *
  * Contributors:
  *      erik lilliebjerg <elilliebjerg@nvidia.com>
@@ -22,6 +22,7 @@
 #include <linux/module.h>
 
 #include <media/ov2710.h>
+#include <media/nvc.h>
 
 #define SIZEOF_I2C_TRANSBUF 32
 
@@ -35,8 +36,15 @@ struct ov2710_info {
 	struct i2c_client *i2c_client;
 	struct ov2710_platform_data *pdata;
 	u8 i2c_trans_buf[SIZEOF_I2C_TRANSBUF];
+	struct nvc_fuseid fuse_id;
 };
 
+#define OV2710_FUSE_ID_SIZE 5
+
+#define OV2710_FUSE_ID_PROGRAM_ENABLE 0
+#define OV2710_FUSE_ID_PROGRAM_TARGET (0x3d00 + 0)
+#define OV2710_FUSE_ID_PROGRAM_VALUE  0x00
+
 #define OV2710_TABLE_WAIT_MS 0
 #define OV2710_TABLE_END 1
 #define OV2710_MAX_RETRIES 3
@@ -618,6 +626,55 @@ static int ov2710_get_status(struct ov2710_info *info, u8 *status)
 }
 
 
+static int ov2710_get_fuse_id(struct ov2710_info *info)
+{
+	int err, i;
+
+#if OV2710_FUSE_ID_PROGRAM_ENABLE
+/* Program the OTP fuse id memory on the sensor.
+ * NOTE: This cannot be reversed.
+ */
+	err = ov2710_write_reg(info->i2c_client, 0x3d10, 0x00);
+	for (i = 0; i < 16; i++)
+		err = ov2710_write_reg(info->i2c_client, 0x3d00 + i, 0x00);
+	err = ov2710_write_reg(info->i2c_client, 0x3d10, 0x01);
+	msleep(20);
+	err = ov2710_write_reg(info->i2c_client, 0x3d10, 0x00);
+	msleep(20);
+	for (i = 0; i < 16; i++)
+		ov2710_read_reg(info->i2c_client,
+			0x3d00 + i,
+			&(info->fuse_id.data[i]));
+	pr_info("ov2710: fuse id: program reg 0x%x to 0x%x\n",
+			OV2710_FUSE_ID_PROGRAM_TARGET,
+			OV2710_FUSE_ID_PROGRAM_VALUE);
+	err = ov2710_write_reg(info->i2c_client,
+			OV2710_FUSE_ID_PROGRAM_TARGET,
+			OV2710_FUSE_ID_PROGRAM_VALUE);
+	err = ov2710_write_reg(info->i2c_client, 0x3d10, 0x02);
+	msleep(20);
+	err = ov2710_write_reg(info->i2c_client, 0x3d10, 0x03);
+#endif
+
+	if (info->fuse_id.size)
+		return 0;
+
+	err = ov2710_write_reg(info->i2c_client, 0x3d10, 0x01);
+	err = ov2710_write_reg(info->i2c_client, 0x3d10, 0x00);
+
+	for (i = 0; i < OV2710_FUSE_ID_SIZE; i++) {
+		err |= ov2710_read_reg(info->i2c_client,
+				0x3d00 + i,
+				&(info->fuse_id.data[i]));
+	}
+
+	if (!err)
+		info->fuse_id.size = i;
+
+	return err;
+}
+
+
 static long ov2710_ioctl(struct file *file,
 			 unsigned int cmd, unsigned long arg)
 {
@@ -666,6 +723,22 @@ static long ov2710_ioctl(struct file *file,
 		}
 		return 0;
 	}
+	case OV2710_IOCTL_GET_FUSEID:
+	{
+		err = ov2710_get_fuse_id(info);
+		if (err) {
+			pr_err("%s %d %d\n", __func__, __LINE__, err);
+			return err;
+		}
+		if (copy_to_user((void __user *)arg,
+				&info->fuse_id,
+				sizeof(struct nvc_fuseid))) {
+			pr_err("%s: %d: fail copy fuse id to user space\n",
+				__func__, __LINE__);
+			return -EFAULT;
+		}
+		return 0;
+	}
 	default:
 		return -EINVAL;
 	}
diff --git a/drivers/media/video/tegra/ov5650.c b/drivers/media/video/tegra/ov5650.c
index 1ef23a403486..35cec0805936 100644
--- a/drivers/media/video/tegra/ov5650.c
+++ b/drivers/media/video/tegra/ov5650.c
@@ -2,6 +2,7 @@
  * ov5650.c - ov5650 sensor driver
  *
  * Copyright (C) 2011 Google Inc.
+ * Copyright (c) 2013, NVIDIA CORPORATION. All Rights Reserved.
  *
  * Contributors:
  *      Rebecca Schultz Zavin <rebecca@android.com>
@@ -23,6 +24,7 @@
 
 #include <media/ov5650.h>
 #include <video/tegra_camera.h>
+#include <media/nvc.h>
 
 #define SIZEOF_I2C_TRANSBUF 32
 
@@ -41,7 +43,7 @@ struct ov5650_info {
 	enum StereoCameraMode camera_mode;
 	struct ov5650_sensor left;
 	struct ov5650_sensor right;
-	struct ov5650_sensordata sensor_data;
+	struct nvc_fuseid fuse_id;
 	struct mutex mutex_le;
 	struct mutex mutex_ri;
 	int power_refcnt_le;
@@ -54,6 +56,7 @@ static struct ov5650_info *stereo_ov5650_info;
 #define OV5650_TABLE_WAIT_MS 0
 #define OV5650_TABLE_END 1
 #define OV5650_MAX_RETRIES 3
+#define OV5650_FUSE_ID_SIZE 5
 
 static struct ov5650_reg tp_none_seq[] = {
 	{0x5046, 0x00},
@@ -1293,27 +1296,27 @@ static int ov5650_set_power(struct ov5650_info *info, int powerLevel)
 	return 0;
 }
 
-static int ov5650_get_sensor_id(struct ov5650_info *info)
+static int ov5650_get_fuseid(struct ov5650_info *info)
 {
 	int ret = 0;
 	int i;
 	u8  bak;
 
 	pr_info("%s\n", __func__);
-	if (info->sensor_data.fuse_id_size)
+	if (info->fuse_id.size)
 		return 0;
 
 	ov5650_set_power(info, 1);
 
-	for (i = 0; i < 5; i++) {
+	for (i = 0; i < OV5650_FUSE_ID_SIZE; i++) {
 		ret |= ov5650_write_reg_helper(info, 0x3d00, i);
 		ret |= ov5650_read_reg_helper(info, 0x3d04,
 				&bak);
-		info->sensor_data.fuse_id[i] = bak;
+		info->fuse_id.data[i] = bak;
 	}
 
 	if (!ret)
-		info->sensor_data.fuse_id_size = i;
+		info->fuse_id.size = i;
 
 	ov5650_set_power(info, 0);
 	return ret;
@@ -1393,17 +1396,18 @@ static long ov5650_ioctl(struct file *file,
 		}
 		return ov5650_set_group_hold(info, &ae);
 	}
-	case OV5650_IOCTL_GET_SENSORDATA:
+	case OV5650_IOCTL_GET_FUSEID:
 	{
-		err = ov5650_get_sensor_id(info);
+		err = ov5650_get_fuseid(info);
 		if (err) {
 			pr_err("%s %d %d\n", __func__, __LINE__, err);
 			return err;
 		}
 		if (copy_to_user((void __user *)arg,
-				&info->sensor_data,
-				sizeof(struct ov5650_sensordata))) {
-			pr_info("%s %d\n", __func__, __LINE__);
+				&info->fuse_id,
+				sizeof(struct nvc_fuseid))) {
+			pr_err("%s: %d: fail copy fuse id to user space\n",
+				__func__, __LINE__);
 			return -EFAULT;
 		}
 		return 0;
diff --git a/drivers/media/video/tegra/ov9726.c b/drivers/media/video/tegra/ov9726.c
index 129591b9af10..04a87a5c1f2a 100644
--- a/drivers/media/video/tegra/ov9726.c
+++ b/drivers/media/video/tegra/ov9726.c
@@ -1,7 +1,7 @@
 /*
  * ov9726.c - ov9726 sensor driver
  *
- * Copyright (c) 2011, NVIDIA, All Rights Reserved.
+ * Copyright (c) 2011-2013, NVIDIA CORPORATION, All Rights Reserved.
  *
  * Contributors:
  *	  Charlie Huang <chahuang@nvidia.com>
@@ -25,6 +25,9 @@
 #include <linux/module.h>
 
 #include <media/ov9726.h>
+#include <media/nvc.h>
+
+#define OV9726_FUSE_ID_SIZE	5
 
 struct ov9726_power_rail {
 	struct regulator *sen_1v8_reg;
@@ -39,6 +42,7 @@ struct ov9726_devinfo {
 	atomic_t			in_use;
 	__u32				mode;
 	struct ov9726_reg		grphold_temp[10];
+	struct nvc_fuseid		fuse_id;
 };
 
 static struct ov9726_reg mode_1280x720[] = {
@@ -699,6 +703,34 @@ ov9726_set_mode_exit:
 	return err;
 }
 
+static int ov9726_get_fuse_id(struct ov9726_devinfo *dev)
+{
+	int ret, i;
+	__u8 bak;
+	struct i2c_client *i2c_client = dev->i2c_client;
+
+	if (dev->fuse_id.size)
+		return 0;
+
+	ret = ov9726_write_reg8(i2c_client, 0x3d21, 0x01);
+
+	bak = 0x80;
+	while (bak & 0x80)
+		ret |= ov9726_read_reg8(i2c_client, 0x3d21, &bak);
+
+	for (i = 0; i < OV9726_FUSE_ID_SIZE; i++) {
+		ret |= ov9726_read_reg8(i2c_client,
+				0x3d00 + i,
+				&dev->fuse_id.data[i]);
+	}
+	ret = ov9726_write_reg8(i2c_client, 0x3d21, 0x00);
+
+	if (!ret)
+		dev->fuse_id.size = i;
+
+	return ret;
+}
+
 static long
 ov9726_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
@@ -754,6 +786,22 @@ ov9726_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		}
 		break;
 	}
+	case OV9726_IOCTL_GET_FUSEID:
+	{
+		err = ov9726_get_fuse_id(dev);
+		if (err) {
+			pr_err("%s %d %d\n", __func__, __LINE__, err);
+			return err;
+		}
+		if (copy_to_user((void __user *)arg,
+				&dev->fuse_id,
+				sizeof(struct nvc_fuseid))) {
+			pr_err("%s: %d: fail copy fuse id to user space\n",
+				__func__, __LINE__);
+			return -EFAULT;
+		}
+		return 0;
+	}
 	default:
 		err = -EINVAL;
 		break;
diff --git a/drivers/media/video/tegra/ov9772.c b/drivers/media/video/tegra/ov9772.c
index 1bdad09d1fd2..9b6041baed29 100644
--- a/drivers/media/video/tegra/ov9772.c
+++ b/drivers/media/video/tegra/ov9772.c
@@ -141,6 +141,7 @@
 #include <linux/module.h>
 
 #include <media/ov9772.h>
+#include <media/nvc.h>
 
 #define OV9772_ID			0x9772
 #define OV9772_SENSOR_TYPE		NVC_IMAGER_TYPE_RAW
@@ -159,6 +160,7 @@
 #define OV9772_LENS_VIEW_ANGLE_H	60000 /* / _INT2FLOAT_DIVISOR */
 #define OV9772_LENS_VIEW_ANGLE_V	60000 /* / _INT2FLOAT_DIVISOR */
 #define OV9772_I2C_TABLE_MAX_ENTRIES	400
+#define OV9772_FUSE_ID_SIZE		5
 
 /* comment out definition to disable mode */
 #define OV9772_ENABLE_1284x724
@@ -198,6 +200,7 @@ struct ov9772_info {
 	struct nvc_imager_static_nvc sdata;
 	u8 i2c_buf[OV9772_SIZEOF_I2C_BUF];
 	u8 bin_en;
+	struct nvc_fuseid fuse_id;
 };
 
 struct ov9772_reg {
@@ -1822,6 +1825,27 @@ static int ov9772_param_wr(struct ov9772_info *info, unsigned long arg)
 	}
 }
 
+static int ov9772_get_fuse_id(struct ov9772_info *info)
+{
+	int err, i;
+
+	if (info->fuse_id.size)
+		return 0;
+
+	err = ov9772_i2c_wr8(info, 0x3d81, 0x01);
+
+	for (i = 0; i < OV9772_FUSE_ID_SIZE; i++) {
+		err |= ov9772_i2c_rd8(info,
+				0x3d00 + i,
+				&info->fuse_id.data[i]);
+	}
+
+	if (!err)
+		info->fuse_id.size = OV9772_FUSE_ID_SIZE;
+
+	return err;
+}
+
 static long ov9772_ioctl(struct file *file,
 			 unsigned int cmd,
 			 unsigned long arg)
@@ -1838,6 +1862,22 @@ static long ov9772_ioctl(struct file *file,
 	int err;
 
 	switch (cmd) {
+	case NVC_IOCTL_FUSE_ID:
+		err = ov9772_get_fuse_id(info);
+		if (err) {
+			pr_err("%s %d %d\n", __func__, __LINE__, err);
+			return err;
+		}
+		if (copy_to_user((void __user *)arg,
+				&info->fuse_id,
+				sizeof(struct nvc_fuseid))) {
+			pr_err("%s: %d: fail copy fuse id to user space\n",
+				__func__, __LINE__);
+			return -EFAULT;
+		}
+
+		return 0;
+
 	case NVC_IOCTL_PARAM_WR:
 		err = ov9772_param_wr(info, arg);
 		return err;
diff --git a/include/media/ar0832_main.h b/include/media/ar0832_main.h
index 3cc1afcb941a..eebd0144c321 100644
--- a/include/media/ar0832_main.h
+++ b/include/media/ar0832_main.h
@@ -1,7 +1,7 @@
 /*
 * ar0832_main.h
 *
-* Copyright (c) 2011, NVIDIA, All Rights Reserved.
+* Copyright (c) 2011-2013, NVIDIA CORPORATION, All Rights Reserved.
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2. This program is licensed "as is" without any warranty of any
@@ -30,6 +30,8 @@
 #define AR0832_IOCTL_GET_SENSOR_ID		_IOR('o', 0x12, __u16)
 #define AR0832_FOCUSER_IOCTL_SET_CONFIG		_IOW('o', 0x13, struct nv_focuser_config)
 
+#define AR0832_IOCTL_GET_FUSEID		_IOR('o', 0x14, struct nvc_fuseid)
+
 #define AR0832_SENSOR_ID_8141			0x1006
 #define AR0832_SENSOR_ID_8140			0x3006
 
@@ -87,7 +89,6 @@ struct ar0832_stereo_region {
 	struct ar0832_point image_end;
 };
 
-
 #ifdef __KERNEL__
 struct ar0832_platform_data {
 	int (*power_on)(struct device *, int is_stereo);
diff --git a/include/media/imx132.h b/include/media/imx132.h
index 01d7c67d94b7..3d6237398be9 100644
--- a/include/media/imx132.h
+++ b/include/media/imx132.h
@@ -1,5 +1,5 @@
 /**
- * Copyright (c) 2012 NVIDIA Corporation.  All rights reserved.
+ * Copyright (c) 2012-2013 NVIDIA CORPORATION.  All rights reserved.
  *
  * NVIDIA Corporation and its licensors retain all intellectual property
  * and proprietary rights in and to this software and related documentation
@@ -18,7 +18,7 @@
 #define IMX132_IOCTL_SET_FRAME_LENGTH	_IOW('o', 3, __u32)
 #define IMX132_IOCTL_SET_COARSE_TIME	_IOW('o', 4, __u32)
 #define IMX132_IOCTL_SET_GAIN		_IOW('o', 5, __u16)
-#define IMX132_IOCTL_GET_SENSORDATA	_IOR('o', 6, struct imx132_sensordata)
+#define IMX132_IOCTL_GET_FUSEID		_IOR('o', 6, struct nvc_fuseid)
 #define IMX132_IOCTL_SET_GROUP_HOLD	_IOW('o', 7, struct imx132_ae)
 
 /* IMX132 registers */
@@ -31,7 +31,6 @@
 
 #define NUM_OF_FRAME_LEN_REG		2
 #define NUM_OF_COARSE_TIME_REG		2
-#define NUM_OF_SENSOR_ID_SPECIFIC_REG	8
 struct imx132_mode {
 	int xres;
 	int yres;
@@ -49,11 +48,6 @@ struct imx132_ae {
 	__u8  gain_enable;
 };
 
-struct imx132_sensordata {
-	__u32 fuse_id_size;
-	__u8  fuse_id[16];
-};
-
 #ifdef __KERNEL__
 struct imx132_power_rail {
 	struct regulator *dvdd;
diff --git a/include/media/imx135.h b/include/media/imx135.h
index a7c00b054145..738e0eea9e09 100644
--- a/include/media/imx135.h
+++ b/include/media/imx135.h
@@ -20,7 +20,7 @@
 #define IMX135_IOCTL_SET_FRAME_LENGTH	_IOW('o', 3, __u32)
 #define IMX135_IOCTL_SET_COARSE_TIME	_IOW('o', 4, __u32)
 #define IMX135_IOCTL_SET_GAIN		_IOW('o', 5, __u16)
-#define IMX135_IOCTL_GET_SENSORDATA	_IOR('o', 6, struct imx135_sensordata)
+#define IMX135_IOCTL_GET_FUSEID		_IOR('o', 6, struct nvc_fuseid)
 #define IMX135_IOCTL_SET_GROUP_HOLD	_IOW('o', 7, struct imx135_ae)
 #define IMX135_IOCTL_SET_HDR_COARSE_TIME	_IOW('o', 8, struct imx135_hdr)
 #define IMX135_IOCTL_SET_POWER		_IOW('o', 20, __u32)
@@ -53,11 +53,6 @@ struct imx135_ae {
 	__u8  gain_enable;
 };
 
-struct imx135_sensordata {
-	__u32 fuse_id_size;
-	__u8  fuse_id[16];
-};
-
 struct imx135_flash_control {
 	u8 enable;
 	u8 edge_trig_en;
@@ -66,7 +61,6 @@ struct imx135_flash_control {
 	u16 delay_frm;
 };
 
-
 #ifdef __KERNEL__
 struct imx135_power_rail {
 	struct regulator *dvdd;
diff --git a/include/media/nvc.h b/include/media/nvc.h
index 4158469758bf..4e722f31d6ab 100644
--- a/include/media/nvc.h
+++ b/include/media/nvc.h
@@ -169,6 +169,7 @@ enum nvc_params_isp {
 #define NVC_IOCTL_PARAM_RD		_IOWR('o', 105, struct nvc_param)
 #define NVC_IOCTL_PARAM_ISP_RD		_IOWR('o', 200, struct nvc_param_isp)
 #define NVC_IOCTL_PARAM_ISP_WR		_IOWR('o', 201, struct nvc_param_isp)
+#define NVC_IOCTL_FUSE_ID		_IOWR('o', 202, struct nvc_fuseid)
 
 
 #ifdef __KERNEL__
@@ -282,6 +283,11 @@ struct nvc_gpio {
 	bool flag; /* scratch flag for driver implementation */
 };
 
+struct nvc_fuseid {
+	__u32 size;
+	__u8 data[16];
+};
+
 #endif /* __KERNEL__ */
 
 #endif /* __NVC_H__ */
diff --git a/include/media/ov2710.h b/include/media/ov2710.h
index a3e070b5ade4..85b03ed9541a 100644
--- a/include/media/ov2710.h
+++ b/include/media/ov2710.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2010 Motorola, Inc.
- * Copyright (C) 2011 NVIDIA Corporation.
+ * Copyright (C) 2011-2013 NVIDIA CORPORATION. All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -28,6 +28,7 @@
 #define OV2710_IOCTL_SET_GAIN		_IOW('o', 4, __u16)
 #define OV2710_IOCTL_GET_STATUS		_IOR('o', 5, __u8)
 #define OV2710_IOCTL_SET_GROUP_HOLD	_IOW('o', 6, struct ov2710_ae)
+#define OV2710_IOCTL_GET_FUSEID         _IOW('o', 7, struct nvc_fuseid)
 
 struct ov2710_mode {
 	int xres;
diff --git a/include/media/ov5650.h b/include/media/ov5650.h
index f1f2f67acd56..d9f5a848ca6c 100644
--- a/include/media/ov5650.h
+++ b/include/media/ov5650.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2010 Motorola, Inc.
- * Copyright (C) 2011 NVIDIA Corporation.
+ * Copyright (C) 2011-2013 NVIDIA CORPORATION. All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -32,7 +32,7 @@
 #define OV5650_IOCTL_SET_GROUP_HOLD	    _IOW('o', 8, struct ov5650_ae)
 #define OV5650_IOCTL_SET_CAMERA_MODE	_IOW('o', 10, __u32)
 #define OV5650_IOCTL_SYNC_SENSORS		_IOW('o', 11, __u32)
-#define OV5650_IOCTL_GET_SENSORDATA		_IOR('o', 12, struct ov5650_sensordata)
+#define OV5650_IOCTL_GET_FUSEID		_IOR('o', 12, struct nvc_fuseid)
 
 /* OV5650 registers */
 #define OV5650_SRM_GRUP_ACCESS          (0x3212)
@@ -65,11 +65,6 @@ enum ov5650_test_pattern {
 	TEST_PATTERN_CHECKERBOARD
 };
 
-struct ov5650_sensordata {
-    __u32 fuse_id_size;
-	__u8 fuse_id[16];
-};
-
 struct ov5650_mode {
 	int xres;
 	int yres;
diff --git a/include/media/ov9726.h b/include/media/ov9726.h
index e942000380b4..795d03519e92 100644
--- a/include/media/ov9726.h
+++ b/include/media/ov9726.h
@@ -1,7 +1,7 @@
 /*
 * ov9726.h
 *
-* Copyright (c) 2011, NVIDIA, All Rights Reserved.
+* Copyright (c) 2011-2013, NVIDIA CORPORATION, All Rights Reserved.
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2. This program is licensed "as is" without any warranty of any
@@ -21,6 +21,7 @@
 #define OV9726_IOCTL_SET_GAIN		_IOW('o', 4, __u16)
 #define OV9726_IOCTL_GET_STATUS	_IOR('o', 5, __u8)
 #define OV9726_IOCTL_SET_GROUP_HOLD	_IOW('o', 6, struct ov9726_ae)
+#define OV9726_IOCTL_GET_FUSEID	_IOR('o', 7, struct nvc_fuseid)
 
 struct ov9726_mode {
 	int	mode_id;