auto File not found. 0Ë /* SPDX-License-Identifier: GPL-2.0 */ /* * most.h - API for component and adapter drivers * * Copyright (C) 2013-2015, Microchip Technology Germany II GmbH & Co. KG */ #ifndef __MOST_CORE_H__ #define __MOST_CORE_H__ #include #include struct module; struct interface_private; /** * Interface type */ enum most_interface_type { ITYPE_LOOPBACK = 1, ITYPE_I2C, ITYPE_I2S, ITYPE_TSI, ITYPE_HBI, ITYPE_MEDIALB_DIM, ITYPE_MEDIALB_DIM2, ITYPE_USB, ITYPE_PCIE }; /** * Channel direction. */ enum most_channel_direction { MOST_CH_RX = 1 << 0, MOST_CH_TX = 1 << 1, }; /** * Channel data type. */ enum most_channel_data_type { MOST_CH_CONTROL = 1 << 0, MOST_CH_ASYNC = 1 << 1, MOST_CH_ISOC = 1 << 2, MOST_CH_SYNC = 1 << 5, }; enum most_status_flags { /* MBO was processed successfully (data was send or received )*/ MBO_SUCCESS = 0, /* The MBO contains wrong or missing information. */ MBO_E_INVAL, /* MBO was completed as HDM Channel will be closed */ MBO_E_CLOSE, }; /** * struct most_channel_capability - Channel capability * @direction: Supported channel directions. * The value is bitwise OR-combination of the values from the * enumeration most_channel_direction. Zero is allowed value and means * "channel may not be used". * @data_type: Supported channel data types. * The value is bitwise OR-combination of the values from the * enumeration most_channel_data_type. Zero is allowed value and means * "channel may not be used". * @num_buffers_packet: Maximum number of buffers supported by this channel * for packet data types (Async,Control,QoS) * @buffer_size_packet: Maximum buffer size supported by this channel * for packet data types (Async,Control,QoS) * @num_buffers_streaming: Maximum number of buffers supported by this channel * for streaming data types (Sync,AV Packetized) * @buffer_size_streaming: Maximum buffer size supported by this channel * for streaming data types (Sync,AV Packetized) * @name_suffix: Optional suffix providean by an HDM that is attached to the * regular channel name. * * Describes the capabilities of a MOST channel like supported Data Types * and directions. This information is provided by an HDM for the MostCore. * * The Core creates read only sysfs attribute files in * /sys/devices/most/mdev#// with the * following attributes: * -available_directions * -available_datatypes * -number_of_packet_buffers * -number_of_stream_buffers * -size_of_packet_buffer * -size_of_stream_buffer * where content of each file is a string with all supported properties of this * very channel attribute. */ struct most_channel_capability { u16 direction; u16 data_type; u16 num_buffers_packet; u16 buffer_size_packet; u16 num_buffers_streaming; u16 buffer_size_streaming; const char *name_suffix; }; /** * struct most_channel_config - stores channel configuration * @direction: direction of the channel * @data_type: data type travelling over this channel * @num_buffers: number of buffers * @buffer_size: size of a buffer for AIM. * Buffer size may be cutted down by HDM in a configure callback * to match to a given interface and channel type. * @extra_len: additional buffer space for internal HDM purposes like padding. * May be set by HDM in a configure callback if needed. * @subbuffer_size: size of a subbuffer * @packets_per_xact: number of MOST frames that are packet inside one USB * packet. This is USB specific * * Describes the configuration for a MOST channel. This information is * provided from the MostCore to a HDM (like the Medusa PCIe Interface) as a * parameter of the "configure" function call. */ struct most_channel_config { enum most_channel_direction direction; enum most_channel_data_type data_type; u16 num_buffers; u16 buffer_size; u16 extra_len; u16 subbuffer_size; u16 packets_per_xact; u16 dbr_size; }; /* * struct mbo - MOST Buffer Object. * @context: context for core completion handler * @priv: private data for HDM * * public: document