105 lines
3.4 KiB
C
105 lines
3.4 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2018-2020, NVIDIA Corporation. All rights reserved.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms and conditions of the GNU General Public License,
|
||
|
|
* version 2, as published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope 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 <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @file
|
||
|
|
* <b>GMSL API: Gigabit Multimedia Serial Link protocol</b>
|
||
|
|
*
|
||
|
|
* @b Description: Defines elements used to set up and use a GMSL link.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __GMSL_LINK_H__
|
||
|
|
/**
|
||
|
|
* \defgroup GMSL Gigabit Multimedia Serial Link (GMSL)
|
||
|
|
*
|
||
|
|
* Defines the interface used to control the MAX9295 serializer and
|
||
|
|
* MAX9296 deserializer modules.
|
||
|
|
*
|
||
|
|
* @ingroup serdes_group
|
||
|
|
* @{
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define __GMSL_LINK_H__
|
||
|
|
|
||
|
|
#define GMSL_CSI_1X4_MODE 0x1
|
||
|
|
#define GMSL_CSI_2X4_MODE 0x2
|
||
|
|
#define GMSL_CSI_2X2_MODE 0x3
|
||
|
|
#define GMSL_CSI_4X2_MODE 0x4
|
||
|
|
|
||
|
|
#define GMSL_CSI_PORT_A 0x0
|
||
|
|
#define GMSL_CSI_PORT_B 0x1
|
||
|
|
#define GMSL_CSI_PORT_C 0x2
|
||
|
|
#define GMSL_CSI_PORT_D 0x3
|
||
|
|
#define GMSL_CSI_PORT_E 0x4
|
||
|
|
#define GMSL_CSI_PORT_F 0x5
|
||
|
|
|
||
|
|
#define GMSL_SERDES_CSI_LINK_A 0x1
|
||
|
|
#define GMSL_SERDES_CSI_LINK_B 0x2
|
||
|
|
|
||
|
|
/* Didn't find kernel defintions, for now adding here */
|
||
|
|
#define GMSL_CSI_DT_RAW_12 0x2C
|
||
|
|
#define GMSL_CSI_DT_UED_U1 0x30
|
||
|
|
#define GMSL_CSI_DT_EMBED 0x12
|
||
|
|
|
||
|
|
#define GMSL_ST_ID_UNUSED 0xFF
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Maximum number of data streams (\ref gmsl_stream elements) in a GMSL link
|
||
|
|
* (\ref gmsl_link_ctx).
|
||
|
|
*/
|
||
|
|
#define GMSL_DEV_MAX_NUM_DATA_STREAMS 4
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Holds information about a data stream in a GMSL link (\ref gmsl_link_ctx).
|
||
|
|
*/
|
||
|
|
struct gmsl_stream {
|
||
|
|
__u32 st_id_sel;
|
||
|
|
__u32 st_data_type;
|
||
|
|
__u32 des_pipe;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Holds the configuration of the GMSL links from a sensor to its serializer to
|
||
|
|
* its deserializer.
|
||
|
|
*/
|
||
|
|
struct gmsl_link_ctx {
|
||
|
|
__u32 st_vc; /**< Default sensor virtual channel. */
|
||
|
|
__u32 dst_vc; /**< Destination virtual channel (user-defined). */
|
||
|
|
__u32 src_csi_port; /**< Sensor to serializer CSI port connection. */
|
||
|
|
__u32 dst_csi_port; /**< Deserializer to Jetson CSI port connection. */
|
||
|
|
__u32 serdes_csi_link; /**< GMSL link between serializer and deserializer
|
||
|
|
devices. */
|
||
|
|
__u32 num_streams; /**< Number of active streams to be mapped
|
||
|
|
from sensor. */
|
||
|
|
__u32 num_csi_lanes; /**< Sensor's CSI lane configuration. */
|
||
|
|
__u32 csi_mode; /**< Deserializer CSI mode. */
|
||
|
|
__u32 ser_reg; /**< Serializer slave address. */
|
||
|
|
__u32 sdev_reg; /**< Sensor proxy slave address. */
|
||
|
|
__u32 sdev_def; /**< Sensor default slave address. */
|
||
|
|
bool serdev_found; /**< Indicates whether the serializer device for
|
||
|
|
the specified sensor source was found. Set by
|
||
|
|
the serializer driver during setup; used by
|
||
|
|
the deserializer driver to choose certain
|
||
|
|
configuration settings during setup. */
|
||
|
|
struct gmsl_stream streams[GMSL_DEV_MAX_NUM_DATA_STREAMS];
|
||
|
|
/*< An array of information about the data streams in the link. */
|
||
|
|
struct device *s_dev; /**< Sensor device handle. */
|
||
|
|
};
|
||
|
|
|
||
|
|
/** @} */
|
||
|
|
|
||
|
|
#endif /* __GMSL_LINK_H__ */
|