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docs(common): improving documentation

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- update esp_modem to use esp_docs
- migrated docs from github pages to docs.espressif.com
This commit is contained in:
Suren Gabrielyan
2023-02-22 14:34:35 +04:00
parent f6ff132eb1
commit ca3fce003e
46 changed files with 149 additions and 187 deletions
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75
components/mdns/docs/Doxyfile
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# This is Doxygen configuration file
#
# Doxygen provides over 260 configuration statements
# To make this file easier to follow,
# it contains only statements that are non-default
#
# NOTE:
# It is recommended not to change defaults unless specifically required
# Test any changes how they affect generated documentation
# Make sure that correct warnings are generated to flag issues with documented code
#
# For the complete list of configuration statements see:
# http://doxygen.nl/manual/config.html
PROJECT_NAME = "ESP Protocols Programming Guide"
## The 'INPUT' statement below is used as input by script 'gen-df-input.py'
## to automatically generate API reference list files heder_file.inc
## These files are placed in '_inc' directory
## and used to include in API reference documentation
INPUT = \
$(PROJECT_PATH)/include/mdns.h
## Get warnings for functions that have no documentation for their parameters or return value
##
WARN_NO_PARAMDOC = YES
## Enable preprocessing and remove __attribute__(...) expressions from the INPUT files
##
ENABLE_PREPROCESSING = YES
MACRO_EXPANSION = YES
EXPAND_ONLY_PREDEF = YES
PREDEFINED = \
$(ENV_DOXYGEN_DEFINES) \
__DOXYGEN__=1 \
__attribute__(x)= \
_Static_assert()= \
IDF_DEPRECATED(X)= \
IRAM_ATTR= \
configSUPPORT_DYNAMIC_ALLOCATION=1 \
configSUPPORT_STATIC_ALLOCATION=1 \
configQUEUE_REGISTRY_SIZE=1 \
configUSE_RECURSIVE_MUTEXES=1 \
configTHREAD_LOCAL_STORAGE_DELETE_CALLBACKS=1 \
configNUM_THREAD_LOCAL_STORAGE_POINTERS=1 \
configUSE_APPLICATION_TASK_TAG=1 \
configTASKLIST_INCLUDE_COREID=1 \
"ESP_EVENT_DECLARE_BASE(x)=extern esp_event_base_t x"
## Do not complain about not having dot
##
HAVE_DOT = NO
## Generate XML that is required for Breathe
##
GENERATE_XML = YES
XML_OUTPUT = xml
GENERATE_HTML = NO
HAVE_DOT = NO
GENERATE_LATEX = NO
GENERATE_MAN = YES
GENERATE_RTF = NO
## Skip distracting progress messages
##
QUIET = YES
## Enable Section Tags for conditional documentation
##
ENABLED_SECTIONS += \
DOC_EXCLUDE_HEADER_SECTION \ ## To conditionally remove doc sections from IDF source files without affecting documentation in upstream files.
DOC_SINGLE_GROUP ## To conditionally remove groups from the documentation and create a 'flat' document without affecting documentation in upstream files.

23
components/mdns/docs/conf_common.py
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# flake8: noqa
from esp_docs.conf_docs import *
extensions += [
'sphinx_copybutton',
# Needed as a trigger for running doxygen
'esp_docs.esp_extensions.dummy_build_system',
'esp_docs.esp_extensions.run_doxygen',
]
# link roles config
github_repo = 'espressif/esp-protocols'
# context used by sphinx_idf_theme
html_context['github_user'] = 'espressif'
html_context['github_repo'] = 'esp-protocols'
# Extra options required by sphinx_idf_theme
project_slug = 'esp-idf' # >=5.0
versions_url = 'https://github.com/espressif/esp-protocols/docs/docs_versions.js'
idf_targets = ['esp32']
languages = ['en', 'zh_CN']

24
components/mdns/docs/en/conf.py
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# -*- coding: utf-8 -*-
#
# English Language RTD & Sphinx config file
#
# Uses ../conf_common.py for most non-language-specific settings.
# Importing conf_common adds all the non-language-specific
# parts to this conf module
try:
from conf_common import * # noqa: F403,F401
except ImportError:
import os
import sys
sys.path.insert(0, os.path.abspath('../'))
from conf_common import * # noqa: F403,F401
# General information about the project.
project = u'ESP-Protocols'
copyright = u'2016 - 2022, Espressif Systems (Shanghai) Co., Ltd'
# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
language = 'en'

203
components/mdns/docs/en/index.rst
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mDNS Service
============
`zh_CN:[中文] <https://espressif.github.io/esp-protocols/mdns/zh_CN/index.html>`_
Overview
--------
mDNS is a multicast UDP service that is used to provide local network service and host discovery.
mDNS is installed by default on most operating systems or is available as separate package. On ``Mac OS`` it is installed by default and is called ``Bonjour``. Apple releases an installer for ``Windows`` that can be found `on Apple's support page <https://support.apple.com/downloads/bonjour%2520for%2520windows>`_. On ``Linux``, mDNS is provided by `avahi <https://github.com/lathiat/avahi>`_ and is usually installed by default.
mDNS Properties
^^^^^^^^^^^^^^^
* ``hostname``: the hostname that the device will respond to. If not set, the ``hostname`` will be read from the interface. Example: ``my-{IDF_TARGET_PATH_NAME}`` will resolve to ``my-{IDF_TARGET_PATH_NAME}.local``
* ``default_instance``: friendly name for your device, like ``Jhon's {IDF_TARGET_NAME} Thing``. If not set, ``hostname`` will be used.
Example method to start mDNS for the STA interface and set ``hostname`` and ``default_instance``:
.. highlight:: c
::
void start_mdns_service()
{
//initialize mDNS service
esp_err_t err = mdns_init();
if (err) {
printf("MDNS Init failed: %d\n", err);
return;
}
//set hostname
mdns_hostname_set("my-{IDF_TARGET_PATH_NAME}");
//set default instance
mdns_instance_name_set("Jhon's {IDF_TARGET_NAME} Thing");
}
mDNS Services
^^^^^^^^^^^^^
mDNS can advertise information about network services that your device offers. Each service is defined by a few properties.
* ``instance_name``: friendly name for your service, like ``Jhon's E{IDF_TARGET_NAME} Web Server``. If not defined, ``default_instance`` will be used.
* ``service_type``: (required) service type, prepended with underscore. Some common types can be found `here <http://www.dns-sd.org/serviceTypes.html>`_.
* ``proto``: (required) protocol that the service runs on, prepended with underscore. Example: ``_tcp`` or ``_udp``
* ``port``: (required) network port that the service runs on
* ``txt``: ``{var, val}`` array of strings, used to define properties for your service
Example method to add a few services and different properties::
void add_mdns_services()
{
//add our services
mdns_service_add(NULL, "_http", "_tcp", 80, NULL, 0);
mdns_service_add(NULL, "_arduino", "_tcp", 3232, NULL, 0);
mdns_service_add(NULL, "_myservice", "_udp", 1234, NULL, 0);
//NOTE: services must be added before their properties can be set
//use custom instance for the web server
mdns_service_instance_name_set("_http", "_tcp", "Jhon's {IDF_TARGET_NAME} Web Server");
mdns_txt_item_t serviceTxtData[3] = {
{"board","{{IDF_TARGET_PATH_NAME}}"},
{"u","user"},
{"p","password"}
};
//set txt data for service (will free and replace current data)
mdns_service_txt_set("_http", "_tcp", serviceTxtData, 3);
//change service port
mdns_service_port_set("_myservice", "_udp", 4321);
}
mDNS Query
^^^^^^^^^^
mDNS provides methods for browsing for services and resolving host's IP/IPv6 addresses.
Results for services are returned as a linked list of ``mdns_result_t`` objects.
Example method to resolve host IPs::
void resolve_mdns_host(const char * host_name)
{
printf("Query A: %s.local", host_name);
struct ip4_addr addr;
addr.addr = 0;
esp_err_t err = mdns_query_a(host_name, 2000, &addr);
if(err){
if(err == ESP_ERR_NOT_FOUND){
printf("Host was not found!");
return;
}
printf("Query Failed");
return;
}
printf(IPSTR, IP2STR(&addr));
}
Example method to resolve local services::
static const char * if_str[] = {"STA", "AP", "ETH", "MAX"};
static const char * ip_protocol_str[] = {"V4", "V6", "MAX"};
void mdns_print_results(mdns_result_t * results){
mdns_result_t * r = results;
mdns_ip_addr_t * a = NULL;
int i = 1, t;
while(r){
printf("%d: Interface: %s, Type: %s\n", i++, if_str[r->tcpip_if], ip_protocol_str[r->ip_protocol]);
if(r->instance_name){
printf(" PTR : %s\n", r->instance_name);
}
if(r->hostname){
printf(" SRV : %s.local:%u\n", r->hostname, r->port);
}
if(r->txt_count){
printf(" TXT : [%u] ", r->txt_count);
for(t=0; t<r->txt_count; t++){
printf("%s=%s; ", r->txt[t].key, r->txt[t].value);
}
printf("\n");
}
a = r->addr;
while(a){
if(a->addr.type == IPADDR_TYPE_V6){
printf(" AAAA: " IPV6STR "\n", IPV62STR(a->addr.u_addr.ip6));
} else {
printf(" A : " IPSTR "\n", IP2STR(&(a->addr.u_addr.ip4)));
}
a = a->next;
}
r = r->next;
}
}
void find_mdns_service(const char * service_name, const char * proto)
{
ESP_LOGI(TAG, "Query PTR: %s.%s.local", service_name, proto);
mdns_result_t * results = NULL;
esp_err_t err = mdns_query_ptr(service_name, proto, 3000, 20, &results);
if(err){
ESP_LOGE(TAG, "Query Failed");
return;
}
if(!results){
ESP_LOGW(TAG, "No results found!");
return;
}
mdns_print_results(results);
mdns_query_results_free(results);
}
Example of using the methods above::
void my_app_some_method(){
//search for {IDF_TARGET_PATH_NAME}-mdns.local
resolve_mdns_host("{IDF_TARGET_PATH_NAME}-mdns");
//search for HTTP servers
find_mdns_service("_http", "_tcp");
//or file servers
find_mdns_service("_smb", "_tcp"); //windows sharing
find_mdns_service("_afpovertcp", "_tcp"); //apple sharing
find_mdns_service("_nfs", "_tcp"); //NFS server
find_mdns_service("_ftp", "_tcp"); //FTP server
//or networked printer
find_mdns_service("_printer", "_tcp");
find_mdns_service("_ipp", "_tcp");
}
Performance Optimization
^^^^^^^^^^^^^^^^^^^^^^^^
Execution Speed
^^^^^^^^^^^^^^^
- mDNS creates a task with default low priority 1 ``CONFIG_MDNS_TASK_PRIORITY`` (If ``CONFIG_FREERTOS_UNICORE`` enabeled it pinned to CPU0 (``CONFIG_MDNS_TASK_AFFINITY``).
Please check `Maximizing Execution Speed <https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/performance/speed.html>`_ for more details.
Minimizing RAM Usage
^^^^^^^^^^^^^^^^^^^^
- mDNS creates a tasks with stack sizes configured by ``CONFIG_MDNS_TASK_STACK_SIZE``.
Please check `Minimizing RAM Usage <https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/performance/ram-usage.html>`_ for more details.
Application Example
-------------------
mDNS server/scanner example: :example:`<../examples>`.
API Reference
-------------
.. include-build-file:: inc/mdns.inc

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components/mdns/docs/generate_docs
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build-docs --target esp32 --language en
build-docs --target esp32 --language zh_CN
cp -rf _build/en/esp32/html html_en
cp -rf _build/zh_CN/esp32/html html_zh_CN
rm -rf _build __pycache__ tee
# Modifes some version and target fields of index.html
echo "<script type="text/javascript">
window.onload =(function() {
var myAnchor = document.getElementById('version-select');
var mySpan = document.createElement('input');
mySpan.setAttribute('type', 'text');
mySpan.setAttribute('maxLength', '10');
mySpan.value = 'latest';
mySpan.setAttribute('disabled', true);
myAnchor.parentNode.replaceChild(mySpan, myAnchor);
var myAnchor = document.getElementById('target-select');
var mySpan = document.createElement('input');
mySpan.setAttribute('type', 'text');
mySpan.setAttribute('maxLength', '10');
mySpan.value = 'all targets';
mySpan.setAttribute('disabled', true);
myAnchor.parentNode.replaceChild(mySpan, myAnchor);
})();
</script>" | tee -a html_en/index.html html_zh_CN/index.html > /dev/null

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components/mdns/docs/zh_CN/conf.py
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# -*- coding: utf-8 -*-
#
# English Language RTD & Sphinx config file
#
# Uses ../conf_common.py for most non-language-specific settings.
# Importing conf_common adds all the non-language-specific
# parts to this conf module
try:
from conf_common import * # noqa: F403,F401
except ImportError:
import os
import sys
sys.path.insert(0, os.path.abspath('..'))
from conf_common import * # noqa: F403,F401
import datetime
current_year = datetime.datetime.now().year
# General information about the project.
project = u'ESP-IDF 编程指南'
copyright = u'2016 - {} 乐鑫信息科技（上海）股份有限公司'.format(current_year)
# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
language = 'zh_CN'

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components/mdns/docs/zh_CN/index.rst
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mDNS 服务
=========
`en:[English] <https://espressif.github.io/esp-protocols/mdns/en/index.html>`_
概述
----
mDNS 是一种组播 UDP 服务，用来提供本地网络服务和主机发现。
绝大多数的操作系统默认都会安装 mDNS 服务，或者提供单独的安装包。``Mac OS`` 默认会安装名为 ``Bonjour`` 的服务（该服务基于 mDNS），此外 Apple 还发布了适用于 Windows 系统的安装程序，可以在 `官方支持 <https://support.apple.com/downloads/bonjour%2520for%2520windows>`_ 找到。在 ``Linux`` 上，mDNS 服务由 `avahi <https://github.com/lathiat/avahi>`_ 提供，通常也会被默认安装。
mDNS 属性
^^^^^^^^^
* ``hostname``：设备会去响应的主机名，如果没有设置，会根据设备的网络接口名定义 ``hostname`` 。例如，``my-{IDF_TARGET_PATH_NAME}`` 会被解析为 ``my-{IDF_TARGET_PATH_NAME}.local``。
* ``default_instance``：默认实例名（即易记的设备名），例如 ``Jhon's {IDF_TARGET_NAME} Thing``。如果没有设置，将会使用 ``hostname``。
以下为 STA 接口启动 mDNS 服务并设置 ``hostname`` 和 ``default_instance`` 的示例方法：
.. highlight:: c
::
void start_mdns_service()
{
// 初始化 mDNS 服务
esp_err_t err = mdns_init();
if (err) {
printf("MDNS Init failed: %d\n", err);
return;
}
// 设置 hostname
mdns_hostname_set("my-{IDF_TARGET_PATH_NAME}");
// 设置默认实例
mdns_instance_name_set("Jhon's {IDF_TARGET_NAME} Thing");
}
mDNS 服务
^^^^^^^^^
mDNS 可以广播设备能够提供的网络服务的相关信息，每个服务会由以下属性构成。
* ``instance_name``：实例名（即易记的服务名），例如 ``Jhon's {IDF_TARGET_NAME} Web Server``。如果没有定义，会使用 ``default_instance``。
* ``service_type``：（必需）服务类型，以下划线为前缀，`这里 <http://www.dns-sd.org/serviceTypes.html>`_ 列出了常见的类型。
* ``proto``：（必需）服务运行所依赖的协议，以下划线为前缀，例如 ``_tcp`` 或者 ``_udp``。
* ``port``：（必需）服务运行所用的端口号。
* ``txt``：形如 ``{var, val}`` 的字符串数组，用于定义服务的属性。
添加一些服务和不同属性的示例方法::
void add_mdns_services()
{
// 添加服务
mdns_service_add(NULL, "_http", "_tcp", 80, NULL, 0);
mdns_service_add(NULL, "_arduino", "_tcp", 3232, NULL, 0);
mdns_service_add(NULL, "_myservice", "_udp", 1234, NULL, 0);
// 注意：必须先添加服务，然后才能设置其属性
// web 服务器使用自定义的实例名
mdns_service_instance_name_set("_http", "_tcp", "Jhon's {IDF_TARGET_NAME} Web Server");
mdns_txt_item_t serviceTxtData[3] = {
{"board","{IDF_TARGET_PATH_NAME}"},
{"u","user"},
{"p","password"}
};
// 设置服务的文本数据（会释放并替换当前数据）
mdns_service_txt_set("_http", "_tcp", serviceTxtData, 3);
// 修改服务端口号
mdns_service_port_set("_myservice", "_udp", 4321);
}
mDNS 查询
^^^^^^^^^
mDNS 提供查询服务和解析主机 IP/IPv6 地址的方法。
服务查询的结果会作为 ``mdns_result_t`` 类型对象的链表返回。
解析主机 IP 地址的示例方法::
void resolve_mdns_host(const char * host_name)
{
printf("Query A: %s.local", host_name);
struct ip4_addr addr;
addr.addr = 0;
esp_err_t err = mdns_query_a(host_name, 2000, &addr);
if(err){
if(err == ESP_ERR_NOT_FOUND){
printf("Host was not found!");
return;
}
printf("Query Failed");
return;
}
printf(IPSTR, IP2STR(&addr));
}
解析本地服务的示例方法::
static const char * if_str[] = {"STA", "AP", "ETH", "MAX"};
static const char * ip_protocol_str[] = {"V4", "V6", "MAX"};
void mdns_print_results(mdns_result_t * results){
mdns_result_t * r = results;
mdns_ip_addr_t * a = NULL;
int i = 1, t;
while(r){
printf("%d: Interface: %s, Type: %s\n", i++, if_str[r->tcpip_if], ip_protocol_str[r->ip_protocol]);
if(r->instance_name){
printf(" PTR : %s\n", r->instance_name);
}
if(r->hostname){
printf(" SRV : %s.local:%u\n", r->hostname, r->port);
}
if(r->txt_count){
printf(" TXT : [%u] ", r->txt_count);
for(t=0; t<r->txt_count; t++){
printf("%s=%s; ", r->txt[t].key, r->txt[t].value);
}
printf("\n");
}
a = r->addr;
while(a){
if(a->addr.type == IPADDR_TYPE_V6){
printf(" AAAA: " IPV6STR "\n", IPV62STR(a->addr.u_addr.ip6));
} else {
printf(" A : " IPSTR "\n", IP2STR(&(a->addr.u_addr.ip4)));
}
a = a->next;
}
r = r->next;
}
}
void find_mdns_service(const char * service_name, const char * proto)
{
ESP_LOGI(TAG, "Query PTR: %s.%s.local", service_name, proto);
mdns_result_t * results = NULL;
esp_err_t err = mdns_query_ptr(service_name, proto, 3000, 20, &results);
if(err){
ESP_LOGE(TAG, "Query Failed");
return;
}
if(!results){
ESP_LOGW(TAG, "No results found!");
return;
}
mdns_print_results(results);
mdns_query_results_free(results);
}
使用上述方法的示例::
void my_app_some_method(){
// 搜索 {IDF_TARGET_PATH_NAME}-mdns.local
resolve_mdns_host("{IDF_TARGET_PATH_NAME}-mdns");
// 搜索 HTTP 服务器
find_mdns_service("_http", "_tcp");
// 或者搜索文件服务器
find_mdns_service("_smb", "_tcp"); // Windows 系统的共享服务
find_mdns_service("_afpovertcp", "_tcp"); // Apple AFP 文件共享服务
find_mdns_service("_nfs", "_tcp"); // NFS 服务器
find_mdns_service("_ftp", "_tcp"); // FTP 服务器
// 或者网络打印机
find_mdns_service("_printer", "_tcp");
find_mdns_service("_ipp", "_tcp");
}
应用示例
--------
有关 mDNS 服务器和查询器的应用示例请参考 :example:`<../examples>`。
API 参考
--------
.. include-build-file:: inc/mdns.inc