projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| ca50c197 SA |
1 | /* |
| 2 | * V4L2 fwnode binding parsing library | |
| 3 | * | |
| 4 | * Copyright (c) 2016 Intel Corporation. | |
| 5 | * Author: Sakari Ailus <sakari.ailus@linux.intel.com> | |
| 6 | * | |
| 7 | * Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd. | |
| 8 | * Author: Sylwester Nawrocki <s.nawrocki@samsung.com> | |
| 9 | * | |
| 10 | * Copyright (C) 2012 Renesas Electronics Corp. | |
| 11 | * Author: Guennadi Liakhovetski <g.liakhovetski@gmx.de> | |
| 12 | * | |
| 13 | * This program is free software; you can redistribute it and/or modify | |
| 14 | * it under the terms of version 2 of the GNU General Public License as | |
| 15 | * published by the Free Software Foundation. | |
| 16 | */ | |
| 17 | #ifndef _V4L2_FWNODE_H | |
| 18 | #define _V4L2_FWNODE_H | |
| 19 | ||
| 20 | #include <linux/errno.h> | |
| 21 | #include <linux/fwnode.h> | |
| 22 | #include <linux/list.h> | |
| 23 | #include <linux/types.h> | |
| 24 | ||
| 25 | #include <media/v4l2-mediabus.h> | |
| 26 | ||
| 27 | struct fwnode_handle; | |
| 28 | ||
| 29 | /** | |
| 30 | * struct v4l2_fwnode_bus_mipi_csi2 - MIPI CSI-2 bus data structure | |
| 31 | * @flags: media bus (V4L2_MBUS_*) flags | |
| 32 | * @data_lanes: an array of physical data lane indexes | |
| 33 | * @clock_lane: physical lane index of the clock lane | |
| 34 | * @num_data_lanes: number of data lanes | |
| 35 | * @lane_polarities: polarity of the lanes. The order is the same of | |
| 36 | * the physical lanes. | |
| 37 | */ | |
| 38 | struct v4l2_fwnode_bus_mipi_csi2 { | |
| 39 | unsigned int flags; | |
| 40 | unsigned char data_lanes[4]; | |
| 41 | unsigned char clock_lane; | |
| 42 | unsigned short num_data_lanes; | |
| 43 | bool lane_polarities[5]; | |
| 44 | }; | |
| 45 | ||
| 46 | /** | |
| 47 | * struct v4l2_fwnode_bus_parallel - parallel data bus data structure | |
| 48 | * @flags: media bus (V4L2_MBUS_*) flags | |
| 49 | * @bus_width: bus width in bits | |
| 50 | * @data_shift: data shift in bits | |
| 51 | */ | |
| 52 | struct v4l2_fwnode_bus_parallel { | |
| 53 | unsigned int flags; | |
| 54 | unsigned char bus_width; | |
| 55 | unsigned char data_shift; | |
| 56 | }; | |
| 57 | ||
| 58 | /** | |
| 59 | * struct v4l2_fwnode_endpoint - the endpoint data structure | |
| 60 | * @base: fwnode endpoint of the v4l2_fwnode | |
| 61 | * @bus_type: bus type | |
| 62 | * @bus: bus configuration data structure | |
| 63 | * @link_frequencies: array of supported link frequencies | |
| 64 | * @nr_of_link_frequencies: number of elements in link_frequenccies array | |
| 65 | */ | |
| 66 | struct v4l2_fwnode_endpoint { | |
| 67 | struct fwnode_endpoint base; | |
| 68 | /* | |
| 69 | * Fields below this line will be zeroed by | |
| 70 | * v4l2_fwnode_parse_endpoint() | |
| 71 | */ | |
| 72 | enum v4l2_mbus_type bus_type; | |
| 73 | union { | |
| 74 | struct v4l2_fwnode_bus_parallel parallel; | |
| 75 | struct v4l2_fwnode_bus_mipi_csi2 mipi_csi2; | |
| 76 | } bus; | |
| 77 | u64 *link_frequencies; | |
| 78 | unsigned int nr_of_link_frequencies; | |
| 79 | }; | |
| 80 | ||
| 81 | /** | |
| 82 | * struct v4l2_fwnode_link - a link between two endpoints | |
| 83 | * @local_node: pointer to device_node of this endpoint | |
| 84 | * @local_port: identifier of the port this endpoint belongs to | |
| 85 | * @remote_node: pointer to device_node of the remote endpoint | |
| 86 | * @remote_port: identifier of the port the remote endpoint belongs to | |
| 87 | */ | |
| 88 | struct v4l2_fwnode_link { | |
| 89 | struct fwnode_handle *local_node; | |
| 90 | unsigned int local_port; | |
| 91 | struct fwnode_handle *remote_node; | |
| 92 | unsigned int remote_port; | |
| 93 | }; | |
| 94 | ||
| 95 | int v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwnode, | |
| 96 | struct v4l2_fwnode_endpoint *vep); | |
| 97 | struct v4l2_fwnode_endpoint *v4l2_fwnode_endpoint_alloc_parse( | |
| 98 | struct fwnode_handle *fwnode); | |
| 99 | void v4l2_fwnode_endpoint_free(struct v4l2_fwnode_endpoint *vep); | |
| 100 | int v4l2_fwnode_parse_link(struct fwnode_handle *fwnode, | |
| 101 | struct v4l2_fwnode_link *link); | |
| 102 | void v4l2_fwnode_put_link(struct v4l2_fwnode_link *link); | |
| 103 | ||
| 104 | #endif /* _V4L2_FWNODE_H */ |