amiro-os / core / inc / aos_iostream.h @ 47680f67
History | View | Annotate | Download (3.993 KB)
| 1 | ba516b61 | Thomas Schöpping | /*
|
|---|---|---|---|
| 2 | AMiRo-OS is an operating system designed for the Autonomous Mini Robot (AMiRo) platform.
|
||
| 3 | Copyright (C) 2016..2018 Thomas Schöpping et al.
|
||
| 4 | |||
| 5 | This program is free software: you can redistribute it and/or modify
|
||
| 6 | it under the terms of the GNU General Public License as published by
|
||
| 7 | the Free Software Foundation, either version 3 of the License, or
|
||
| 8 | (at your option) any later version.
|
||
| 9 | |||
| 10 | This program is distributed in the hope that it will be useful,
|
||
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
| 13 | GNU General Public License for more details.
|
||
| 14 | |||
| 15 | You should have received a copy of the GNU General Public License
|
||
| 16 | along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
| 17 | */
|
||
| 18 | |||
| 19 | 53710ca3 | Marc Rothmann | /**
|
| 20 | * @file aos_iostream.h
|
||
| 21 | * @brief Stream and channel macros and structures.
|
||
| 22 | *
|
||
| 23 | * @addtogroup aos_stream
|
||
| 24 | * @{
|
||
| 25 | */
|
||
| 26 | |||
| 27 | ba516b61 | Thomas Schöpping | #ifndef _AMIROOS_IOSTREAM_H_
|
| 28 | #define _AMIROOS_IOSTREAM_H_
|
||
| 29 | |||
| 30 | #include <hal.h> |
||
| 31 | #include <aos_types.h> |
||
| 32 | #include <stdarg.h> |
||
| 33 | |||
| 34 | |||
| 35 | |||
| 36 | /**
|
||
| 37 | * @brief Channel flag to indicate whether the channel is attached to a stream.
|
||
| 38 | */
|
||
| 39 | #define AOS_IOCHANNEL_ATTACHED (1 << 0) |
||
| 40 | |||
| 41 | /**
|
||
| 42 | dd8738ea | Thomas Schöpping | * @brief Channel flag to indicate whether the channel is set as input.
|
| 43 | */
|
||
| 44 | #define AOS_IOCHANNEL_INPUT_ENABLE (1 << 1) |
||
| 45 | |||
| 46 | /**
|
||
| 47 | ba516b61 | Thomas Schöpping | * @brief Channel flag to indicate whether the channel is set as output.
|
| 48 | */
|
||
| 49 | dd8738ea | Thomas Schöpping | #define AOS_IOCHANNEL_OUTPUT_ENABLE (1 << 2) |
| 50 | ba516b61 | Thomas Schöpping | |
| 51 | /*
|
||
| 52 | * forward definitions
|
||
| 53 | */
|
||
| 54 | typedef struct aos_iochannel AosIOChannel; |
||
| 55 | typedef struct aos_ostream AosIOStream; |
||
| 56 | |||
| 57 | /**
|
||
| 58 | * @brief AosI=Channel specific methods.
|
||
| 59 | */
|
||
| 60 | #define _aos_iochannel_methods \
|
||
| 61 | _base_asynchronous_channel_methods |
||
| 62 | |||
| 63 | /**
|
||
| 64 | * @brief AosIOChannel specific data.
|
||
| 65 | */
|
||
| 66 | #define _aos_iochannel_data \
|
||
| 67 | /* pointer to a BaseAsynchronousChannel object */ \
|
||
| 68 | BaseAsynchronousChannel* asyncchannel; \ |
||
| 69 | /* pointer to the next channel in a AosIOStream */ \
|
||
| 70 | AosIOChannel* next; \ |
||
| 71 | /* flags related to the channel */ \
|
||
| 72 | uint8_t flags; |
||
| 73 | |||
| 74 | /**
|
||
| 75 | * @extends BaseAsynchronousChannelVMT
|
||
| 76 | *
|
||
| 77 | * @brief AosIOChannel virtual methods table.
|
||
| 78 | */
|
||
| 79 | struct AosIOChannelVMT {
|
||
| 80 | _aos_iochannel_methods |
||
| 81 | }; |
||
| 82 | |||
| 83 | /**
|
||
| 84 | * @extends BaseAsynchronousChannel
|
||
| 85 | *
|
||
| 86 | * @brief I/O Channel class.
|
||
| 87 | * @details This class implements an asynchronous I/O channel.
|
||
| 88 | */
|
||
| 89 | struct aos_iochannel {
|
||
| 90 | /** @brief Virtual Methods Table. */
|
||
| 91 | const struct AosIOChannelVMT* vmt; |
||
| 92 | _aos_iochannel_data |
||
| 93 | }; |
||
| 94 | |||
| 95 | /**
|
||
| 96 | * @brief AosIOStream methods.
|
||
| 97 | */
|
||
| 98 | #define _aos_iostream_methods \
|
||
| 99 | _base_sequential_stream_methods |
||
| 100 | |||
| 101 | /**
|
||
| 102 | * @brief AosIOStream data.
|
||
| 103 | */
|
||
| 104 | #define _aos_iostream_data \
|
||
| 105 | /* Pointer to the first channel in a list. */ \
|
||
| 106 | AosIOChannel* channel; |
||
| 107 | |||
| 108 | /**
|
||
| 109 | * @extends BaseSequentialStream
|
||
| 110 | *
|
||
| 111 | * @brief AosIOStream virtual methods table.
|
||
| 112 | */
|
||
| 113 | struct AosIOStreamVMT {
|
||
| 114 | _aos_iostream_methods |
||
| 115 | }; |
||
| 116 | |||
| 117 | /**
|
||
| 118 | * @extends BaseSequentialStream
|
||
| 119 | *
|
||
| 120 | * @brief I/O Stream class.
|
||
| 121 | * @details This class implements an base sequential stream.
|
||
| 122 | * @todo So far only output but no input is supported.
|
||
| 123 | */
|
||
| 124 | struct aos_ostream {
|
||
| 125 | const struct AosIOStreamVMT* vmt; |
||
| 126 | _aos_iostream_data |
||
| 127 | }; |
||
| 128 | |||
| 129 | #ifdef __cplusplus
|
||
| 130 | extern "C" { |
||
| 131 | #endif
|
||
| 132 | void aosIOStreamInit(AosIOStream* stream);
|
||
| 133 | void aosIOChannelInit(AosIOChannel* channel, BaseAsynchronousChannel* asyncchannel);
|
||
| 134 | void aosIOStreamAddChannel(AosIOStream* stream, AosIOChannel* channel);
|
||
| 135 | aos_status_t aosIOStreamRemoveChannel(AosIOStream* stream, AosIOChannel* channel); |
||
| 136 | dd8738ea | Thomas Schöpping | void aosIOChannelInputEnable(AosIOChannel* channel);
|
| 137 | void aosIOChannelInputDisable(AosIOChannel* channel);
|
||
| 138 | ba516b61 | Thomas Schöpping | void aosIOChannelOutputEnable(AosIOChannel* channel);
|
| 139 | void aosIOChannelOutputDisable(AosIOChannel* channel);
|
||
| 140 | #ifdef __cplusplus
|
||
| 141 | } |
||
| 142 | #endif
|
||
| 143 | |||
| 144 | #endif /* _AMIROOS_IOSTREAM_H_ */ |
||
| 145 | 53710ca3 | Marc Rothmann | |
| 146 | /** @} */ |