media: camera: Build tegra-camera as OOT module

Port camera drivers below from /kenrel/nvidia to
/kernel/nvidia-oot as OOT modules:
- Fusa-capture driver
- Tegra V4L2 framework driver
- vi/csi driver
- tegra camera platform driver

Change-Id: I390af27096425bb11e0934201dd1a90f001bb3fa
Signed-off-by: Frank Chen <frankc@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2780698
Reviewed-by: FNU Raunak <fraunak@nvidia.com>
Reviewed-by: Ankur Pawar <ankurp@nvidia.com>
Reviewed-by: Shiva Dubey <sdubey@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>

include/uapi/media/camera_device.h

@@ -0,0 +1,119 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * camera device driver header
+ *
+ * Copyright (c) 2018-2022 NVIDIA Corporation.  All rights reserved.
+ */
+
+#ifndef __UAPI_CAMERA_DEVICE_H_
+#define __UAPI_CAMERA_DEVICE_H_
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+#define __CAMERA_DEVICE_ALIGN __aligned(8)
+
+/* Sensor, focuser, iris etc., */
+#define MAX_DEVICES_PER_CHANNEL 4
+
+/*
+ * Increasing below values must validate
+ * copy_from or copy_to works properly
+ */
+#define MAX_COMMANDS 256
+#define MAX_BLOB_SIZE 2048
+
+struct i2c_bus {
+	__u32 reg_base;
+	__u32 clk_rate;
+	__u32 flags;
+	__u8 reserved[4];
+};
+
+struct i2c_mux {
+	bool is_mux_valid;
+	__u8 mux_channel;
+	__u16 mux_addr;
+	__u8 reserved[4];
+};
+
+struct i2c_dev {
+	__u16 addr;
+	__u8 pad[2];
+	__u32 flags;
+};
+
+struct spi_bus {
+	__u32 reg_base;
+	__u32 clk_rate;
+	__u32 flags;
+	__u8 reserved[4];
+};
+
+struct spi_dev {
+	__u8 port;
+	__u16 addr;
+	__u8 pad;
+	__u32 flags;
+	__u8 pad1[4];
+};
+
+struct i2c_sensor_cfg {
+	__u32 num_devs;
+	struct i2c_bus bus;
+	struct i2c_mux mux;
+	struct i2c_dev sd[MAX_DEVICES_PER_CHANNEL];
+};
+
+struct spi_sensor_cfg {
+	__u32 num_devs;
+	struct spi_bus bus;
+	struct spi_dev sd[MAX_DEVICES_PER_CHANNEL];
+};
+
+struct sensor_cfg {
+	__u8 type; /* SPI or I2C */
+	__u8 pad[3]; /* for alignment */
+	union {
+		struct i2c_sensor_cfg i2c_sensor;
+		struct spi_sensor_cfg spi_sensor;
+	} u;
+} __CAMERA_DEVICE_ALIGN;
+
+struct sensor_cmd {
+	__u32 opcode;
+	__u32 addr;
+};
+
+struct sensor_blob {
+	__u32 num_cmds;
+	__u32 buf_size;
+	struct sensor_cmd cmds[MAX_COMMANDS];
+	__u8 buf[MAX_BLOB_SIZE];
+} __CAMERA_DEVICE_ALIGN;
+
+struct sensor_blob_cfg {
+	__u32 nlines;
+	struct sensor_blob *blob;
+} __CAMERA_DEVICE_ALIGN;
+
+#define CAMERA_DEVICE_NONE		0
+#define	CAMERA_DEVICE_I2C_SENSOR	(0x1 << 1)
+#define	CAMERA_DEVICE_SPI_SENSOR	(0x1 << 2)
+/* Future extensions - if necessary */
+#define	CAMERA_DEVICE_VI		(0x1 << 8)
+#define	CAMERA_DEVICE_CSI		(0x1 << 9)
+#define CAMERA_DEVICE_ISP		(0x1 << 16)
+
+struct camdev_chan_cfg {
+	__u32 type;
+	struct sensor_cfg scfg;
+} __CAMERA_DEVICE_ALIGN;
+
+/* common functionality */
+#define CAMERA_DEVICE_REGISTER _IOW('C', 1, struct camdev_chan_cfg)
+#define CAMERA_DEVICE_UNREGISTER _IOW('C', 2, __u32)
+/* sensor functionality */
+#define SENSOR_BLOB_EXECUTE _IOW('C', 10, struct sensor_blob_cfg)
+
+#endif