1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | /* * V4L2 OF binding parsing library * * Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd. * Author: Sylwester Nawrocki <s.nawrocki@samsung.com> * * Copyright (C) 2012 Renesas Electronics Corp. * Author: Guennadi Liakhovetski <g.liakhovetski@gmx.de> * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. */ #ifndef _V4L2_OF_H #define _V4L2_OF_H #include <linux/list.h> #include <linux/types.h> #include <linux/errno.h> #include <linux/of_graph.h> #include <media/v4l2-mediabus.h> struct device_node; /** * struct v4l2_of_bus_mipi_csi2 - MIPI CSI-2 bus data structure * @flags: media bus (V4L2_MBUS_*) flags * @data_lanes: an array of physical data lane indexes * @clock_lane: physical lane index of the clock lane * @num_data_lanes: number of data lanes * @lane_polarities: polarity of the lanes. The order is the same of * the physical lanes. */ struct v4l2_of_bus_mipi_csi2 { unsigned int flags; unsigned char data_lanes[4]; unsigned char clock_lane; unsigned short num_data_lanes; bool lane_polarities[5]; }; /** * struct v4l2_of_bus_parallel - parallel data bus data structure * @flags: media bus (V4L2_MBUS_*) flags * @bus_width: bus width in bits * @data_shift: data shift in bits */ struct v4l2_of_bus_parallel { unsigned int flags; unsigned char bus_width; unsigned char data_shift; }; /** * struct v4l2_of_endpoint - the endpoint data structure * @base: struct of_endpoint containing port, id, and local of_node * @bus_type: bus type * @bus: bus configuration data structure * @link_frequencies: array of supported link frequencies * @nr_of_link_frequencies: number of elements in link_frequenccies array */ struct v4l2_of_endpoint { struct of_endpoint base; /* Fields below this line will be zeroed by v4l2_of_parse_endpoint() */ enum v4l2_mbus_type bus_type; union { struct v4l2_of_bus_parallel parallel; struct v4l2_of_bus_mipi_csi2 mipi_csi2; } bus; u64 *link_frequencies; unsigned int nr_of_link_frequencies; }; /** * struct v4l2_of_link - a link between two endpoints * @local_node: pointer to device_node of this endpoint * @local_port: identifier of the port this endpoint belongs to * @remote_node: pointer to device_node of the remote endpoint * @remote_port: identifier of the port the remote endpoint belongs to */ struct v4l2_of_link { struct device_node *local_node; unsigned int local_port; struct device_node *remote_node; unsigned int remote_port; }; #ifdef [31mCONFIG_OF[0m int v4l2_of_parse_endpoint(const struct device_node *node, struct v4l2_of_endpoint *endpoint); struct v4l2_of_endpoint *v4l2_of_alloc_parse_endpoint( const struct device_node *node); void v4l2_of_free_endpoint(struct v4l2_of_endpoint *endpoint); int v4l2_of_parse_link(const struct device_node *node, struct v4l2_of_link *link); void v4l2_of_put_link(struct v4l2_of_link *link); #else /* CONFIG_OF */ static inline int v4l2_of_parse_endpoint(const struct device_node *node, struct v4l2_of_endpoint *link) { return -ENOSYS; } static inline struct v4l2_of_endpoint *v4l2_of_alloc_parse_endpoint( const struct device_node *node) { return NULL; } static inline void v4l2_of_free_endpoint(struct v4l2_of_endpoint *endpoint) { } static inline int v4l2_of_parse_link(const struct device_node *node, struct v4l2_of_link *link) { return -ENOSYS; } static inline void v4l2_of_put_link(struct v4l2_of_link *link) { } #endif /* CONFIG_OF */ #endif /* _V4L2_OF_H */ |