132 lines
2.8 KiB
C
132 lines
2.8 KiB
C
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/*
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* include/linux/media/camera_device.h
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*
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* camera device driver header
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*
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* Copyright (c) 2019 NVIDIA Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __UAPI_CAMERA_DEVICE_H_
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#define __UAPI_CAMERA_DEVICE_H_
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#include <linux/types.h>
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#include <linux/ioctl.h>
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#define __CAMERA_DEVICE_ALIGN __aligned(8)
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/* Sensor, focuser, iris etc., */
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#define MAX_DEVICES_PER_CHANNEL 4
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/*
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* Increasing below values must validate
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* copy_from or copy_to works properly
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*/
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#define MAX_COMMANDS 256
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#define MAX_BLOB_SIZE 2048
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struct i2c_bus {
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__u32 reg_base;
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__u32 clk_rate;
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__u32 flags;
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__u8 reserved[4];
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};
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struct i2c_mux {
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bool is_mux_valid;
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__u8 mux_channel;
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__u16 mux_addr;
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__u8 reserved[4];
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};
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struct i2c_dev {
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__u16 addr;
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__u8 pad[2];
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__u32 flags;
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};
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struct spi_bus {
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__u32 reg_base;
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__u32 clk_rate;
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__u32 flags;
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__u8 reserved[4];
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};
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struct spi_dev {
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__u8 port;
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__u16 addr;
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__u8 pad;
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__u32 flags;
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__u8 pad1[4];
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};
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struct i2c_sensor_cfg {
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__u32 num_devs;
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struct i2c_bus bus;
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struct i2c_mux mux;
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struct i2c_dev sd[MAX_DEVICES_PER_CHANNEL];
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};
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struct spi_sensor_cfg {
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__u32 num_devs;
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struct spi_bus bus;
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struct spi_dev sd[MAX_DEVICES_PER_CHANNEL];
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};
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struct sensor_cfg {
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__u8 type; /* SPI or I2C */
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__u8 pad[3]; /* for alignment */
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union {
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struct i2c_sensor_cfg i2c_sensor;
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struct spi_sensor_cfg spi_sensor;
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} u;
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} __CAMERA_DEVICE_ALIGN;
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struct sensor_cmd {
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__u32 opcode;
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__u32 addr;
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};
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struct sensor_blob {
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__u32 num_cmds;
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__u32 buf_size;
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struct sensor_cmd cmds[MAX_COMMANDS];
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__u8 buf[MAX_BLOB_SIZE];
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} __CAMERA_DEVICE_ALIGN;
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struct sensor_blob_cfg {
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__u32 nlines;
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struct sensor_blob *blob;
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} __CAMERA_DEVICE_ALIGN;
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#define CAMERA_DEVICE_NONE 0
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#define CAMERA_DEVICE_I2C_SENSOR (0x1 << 1)
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#define CAMERA_DEVICE_SPI_SENSOR (0x1 << 2)
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/* Future extensions - if necessary */
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#define CAMERA_DEVICE_VI (0x1 << 8)
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#define CAMERA_DEVICE_CSI (0x1 << 9)
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#define CAMERA_DEVICE_ISP (0x1 << 16)
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struct camdev_chan_cfg {
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__u32 type;
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struct sensor_cfg scfg;
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} __CAMERA_DEVICE_ALIGN;
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/* common functionality */
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#define CAMERA_DEVICE_REGISTER _IOW('C', 1, struct camdev_chan_cfg)
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#define CAMERA_DEVICE_UNREGISTER _IOW('C', 2, __u32)
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/* sensor functionality */
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#define SENSOR_BLOB_EXECUTE _IOW('C', 10, struct sensor_blob_cfg)
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#endif
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